build: Release v33.0

Signed-off-by: Bo Chen <chen.bo@intel.com>

.github/workflows/build.yaml

@@ -13,7 +13,7 @@ jobs:
           - stable
           - beta
           - nightly
-          - "1.62"
+          - "1.64"
         target:
           - x86_64-unknown-linux-gnu
           - x86_64-unknown-linux-musl
@@ -42,6 +42,9 @@ jobs:
       - name: Build (default features + tdx)
         run: cargo rustc --locked --bin cloud-hypervisor --features "tdx" -- -D warnings -D clippy::undocumented_unsafe_blocks
 
+      - name: Build (default features + dbus_api)
+        run: cargo rustc --locked --bin cloud-hypervisor --features "dbus_api" -- -D warnings -D clippy::undocumented_unsafe_blocks
+
       - name: Build (default features + guest_debug)
         run: cargo rustc --locked --bin cloud-hypervisor --features "guest_debug" -- -D warnings -D clippy::undocumented_unsafe_blocks
 

.github/workflows/docker-image.yaml

@@ -7,6 +7,10 @@ on:
   pull_request:
     paths: resources/Dockerfile
 
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
 jobs:
   main:
     runs-on: ubuntu-latest
@@ -20,19 +24,19 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
 
-      - name: Login to DockerHub
-        if: ${{ github.event_name == 'push' }}
-        uses: docker/login-action@v1 
+      - name: Login to ghcr
+        uses: docker/login-action@v2
         with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v3
+        uses: docker/metadata-action@v4
         with:
-          # list of Docker images to use as base name for tags
-          images: cloudhypervisor/dev
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           # generate Docker tags based on the following events/attributes
           tags: |
             type=raw,value={{date 'YYYYMMDD'}}-0

.github/workflows/hadolint.yaml

@@ -0,0 +1,26 @@
+name: Lint Dockerfile
+
+on:
+  push:
+    paths:
+    - resources/Dockerfile
+  pull_request:
+    paths:
+    - resources/Dockerfile
+
+jobs:
+  hadolint:
+    name: Run Hadolint Dockerfile Linter
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Lint Dockerfile
+        uses: hadolint/hadolint-action@master
+        with:
+          dockerfile: ./resources/Dockerfile
+          format: tty
+          no-fail: false
+          verbose: true
+          failure-threshold: info

.github/workflows/release.yaml

@@ -16,29 +16,29 @@ jobs:
       - name: Install Rust toolchain (x86_64-unknown-linux-gnu)
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.62"
+          toolchain: "1.67.1"
           target: x86_64-unknown-linux-gnu
       - name: Install Rust toolchain (x86_64-unknown-linux-musl)
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.62"
+          toolchain: "1.67.1"
           target: x86_64-unknown-linux-musl
       - name: Build
         uses: actions-rs/cargo@v1
         with:
-          toolchain: "1.62"
+          toolchain: "1.67.1"
           command: build
           args: --all --release --no-default-features --features "kvm,mshv" --target=x86_64-unknown-linux-gnu
       - name: Static Build
         uses: actions-rs/cargo@v1
         with:
-          toolchain: "1.62"
+          toolchain: "1.67.1"
           command: build
           args: --all --release --no-default-features --features "kvm,mshv" --target=x86_64-unknown-linux-musl
       - name: Install Rust toolchain (aarch64-unknown-linux-musl)
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.62"
+          toolchain: "1.67.1"
           target: aarch64-unknown-linux-musl
           override: true
       - name: Create Release

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cloud-hypervisor"
-version = "30.1.0"
+version = "33.0.0"
 authors = ["The Cloud Hypervisor Authors"]
 edition = "2021"
 default-run = "cloud-hypervisor"
@@ -15,7 +15,7 @@ homepage = "https://github.com/cloud-hypervisor/cloud-hypervisor"
 # a.) A dependency requires it,
 # b.) If we want to use a new feature and that MSRV is at least 6 months old,
 # c.) There is a security issue that is addressed by the toolchain update.
-rust-version = "1.62"
+rust-version = "1.64"
 
 [profile.release]
 lto = true
@@ -29,7 +29,7 @@ strip = false
 debug = true
 
 [dependencies]
-anyhow = "1.0.69"
+anyhow = "1.0.71"
 api_client = { path = "api_client" }
 argh = "0.1.9"
 dhat = { version = "0.3.2", optional = true }
@@ -40,31 +40,34 @@ libc = "0.2.139"
 log = { version = "0.4.17", features = ["std"] }
 option_parser = { path = "option_parser" }
 seccompiler = "0.3.0"
-serde_json = "1.0.93"
-signal-hook = "0.3.14"
-thiserror = "1.0.38"
+serde_json = "1.0.96"
+signal-hook = "0.3.15"
+thiserror = "1.0.40"
 tpm = { path = "tpm"}
 tracer = { path = "tracer" }
 vmm = { path = "vmm" }
 vmm-sys-util = "0.11.0"
-vm-memory = "0.10.0"
+vm-memory = "0.11.0"
+zbus = { version = "3.11.1", optional = true }
 
 # List of patched crates
 [patch.crates-io]
 kvm-bindings = { git = "https://github.com/cloud-hypervisor/kvm-bindings", branch = "ch-v0.6.0-tdx" }
 kvm-ioctls = { git = "https://github.com/rust-vmm/kvm-ioctls", branch = "main" }
 versionize_derive = { git = "https://github.com/cloud-hypervisor/versionize_derive", branch = "ch" }
+vhost = { git = "https://github.com/rust-vmm/vhost", branch = "main" }
 
 [dev-dependencies]
-dirs = "4.0.0"
+dirs = "5.0.0"
 net_util = { path = "net_util" }
 once_cell = "1.17.1"
-serde_json = "1.0.93"
+serde_json = "1.0.96"
 test_infra = { path = "test_infra" }
 wait-timeout = "0.2.0"
 
 [features]
 default = ["kvm"]
+dbus_api = ["zbus", "vmm/dbus_api"]
 dhat-heap = ["dhat"] # For heap profiling
 guest_debug = ["vmm/guest_debug"]
 kvm = ["vmm/kvm"]

README.md

@@ -113,7 +113,7 @@ Firmware](https://github.com/cloud-hypervisor/rust-hypervisor-firmware) or an
 edk2 UEFI firmware called `CLOUDHV` / `CLOUDHV_EFI`.)
 
 Binary builds of the firmware files are available for the latest release of
-[Rust Hyperivor
+[Rust Hypervisor
 Firmware](https://github.com/cloud-hypervisor/rust-hypervisor-firmware/releases/latest)
 and [our edk2
 repository](https://github.com/cloud-hypervisor/edk2/releases/latest)
@@ -124,7 +124,7 @@ may be required.
 ### Firmware Booting
 
 Cloud Hypervisor supports booting disk images containing all needed components
-to run cloud workloads, a.k.a. cloud images. 
+to run cloud workloads, a.k.a. cloud images.
 
 The following sample commands will download an Ubuntu Cloud image, converting
 it into a format that Cloud Hypervisor can use and a firmware to boot the image
@@ -140,7 +140,10 @@ The Ubuntu cloud images do not ship with a default password so it necessary to
 use a `cloud-init` disk image to customise the image on the first boot. A basic
 `cloud-init` image is generated by this [script](scripts/create-cloud-init.sh).
 This seeds the image with a default username/password of `cloud/cloud123`. It
-is only necessary to add this disk image on the first boot.
+is only necessary to add this disk image on the first boot. Script also assigns
+default IP address using `test_data/cloud-init/ubuntu/local/network-config` details
+with `--net "mac=12:34:56:78:90:ab,tap="` option. Then the matching mac address
+interface will be enabled as per `network-config` details.
 
 ```shell
 $ sudo setcap cap_net_admin+ep ./cloud-hypervisor
@@ -178,7 +181,7 @@ To build the kernel:
 
 ```shell
 # Clone the Cloud Hypervisor Linux branch
-$ git clone --depth 1 https://github.com/cloud-hypervisor/linux.git -b ch-6.1.6 linux-cloud-hypervisor
+$ git clone --depth 1 https://github.com/cloud-hypervisor/linux.git -b ch-6.2 linux-cloud-hypervisor
 $ pushd linux-cloud-hypervisor
 # Use the x86-64 cloud-hypervisor kernel config to build your kernel for x86-64
 $ wget https://raw.githubusercontent.com/cloud-hypervisor/cloud-hypervisor/main/resources/linux-config-x86_64
@@ -372,8 +375,8 @@ are all equal and welcome means of contribution. See the
 
 ## Slack
 
-Get an [invite to our Slack channel](https://join.slack.com/t/cloud-hypervisor/shared_invite/enQtNjY3MTE3MDkwNDQ4LWQ1MTA1ZDVmODkwMWQ1MTRhYzk4ZGNlN2UwNTI3ZmFlODU0OTcwOWZjMTkwZDExYWE3YjFmNzgzY2FmNDAyMjI)
-and [join us on Slack](https://cloud-hypervisor.slack.com/).
+Get an [invite to our Slack channel](https://join.slack.com/t/cloud-hypervisor/shared_invite/enQtNjY3MTE3MDkwNDQ4LWQ1MTA1ZDVmODkwMWQ1MTRhYzk4ZGNlN2UwNTI3ZmFlODU0OTcwOWZjMTkwZDExYWE3YjFmNzgzY2FmNDAyMjI),
+ [join us on Slack](https://cloud-hypervisor.slack.com/), and [participate in our community activities](https://cloud-hypervisor.slack.com/archives/C04R5DUQVBN).
 
 ## Mailing list
 

arch/Cargo.toml

@@ -9,18 +9,18 @@ default = []
 tdx = []
 
 [dependencies]
-anyhow = "1.0.69"
+anyhow = "1.0.71"
 byteorder = "1.4.3"
 hypervisor = { path = "../hypervisor" }
 libc = "0.2.139"
-linux-loader = { version = "0.8.1", features = ["elf", "bzimage", "pe"] }
+linux-loader = { version = "0.9.0", features = ["elf", "bzimage", "pe"] }
 log = "0.4.17"
-serde = { version = "1.0.151", features = ["rc", "derive"] }
-thiserror = "1.0.38"
-uuid = "1.3.0"
-versionize = "0.1.9"
+serde = { version = "1.0.164", features = ["rc", "derive"] }
+thiserror = "1.0.40"
+uuid = "1.3.4"
+versionize = "0.1.10"
 versionize_derive = "0.1.4"
-vm-memory = { version = "0.10.0", features = ["backend-mmap", "backend-bitmap"] }
+vm-memory = { version = "0.11.0", features = ["backend-mmap", "backend-bitmap"] }
 vm-migration = { path = "../vm-migration" }
 vmm-sys-util = { version = "0.11.0", features = ["with-serde"] }
 

arch/src/aarch64/fdt.rs

@@ -24,6 +24,8 @@ use super::layout::{
     IRQ_BASE, MEM_32BIT_DEVICES_SIZE, MEM_32BIT_DEVICES_START, MEM_PCI_IO_SIZE, MEM_PCI_IO_START,
     PCI_HIGH_BASE, PCI_MMIO_CONFIG_SIZE_PER_SEGMENT,
 };
+use std::fs;
+use std::path::Path;
 use vm_fdt::{FdtWriter, FdtWriterResult};
 use vm_memory::{Address, Bytes, GuestMemory, GuestMemoryError, GuestMemoryRegion};
 
@@ -40,8 +42,12 @@ const VIRTIO_IOMMU_PHANDLE: u32 = 5;
 // NOTE: Keep FIRST_VCPU_PHANDLE the last PHANDLE defined.
 // This is a value for uniquely identifying the FDT node containing the first vCPU.
 // The last number of vCPU phandle depends on the number of vCPUs.
-const FIRST_VCPU_PHANDLE: u32 = 6;
+const FIRST_VCPU_PHANDLE: u32 = 8;
 
+// This is a value for uniquely identifying the FDT node containing the L2 cache info
+const L2_CACHE_PHANDLE: u32 = 6;
+// This is a value for uniquely identifying the FDT node containing the L3 cache info
+const L3_CACHE_PHANDLE: u32 = 7;
 // Read the documentation specified when appending the root node to the FDT.
 const ADDRESS_CELLS: u32 = 0x2;
 const SIZE_CELLS: u32 = 0x2;
@@ -81,6 +87,97 @@ pub enum Error {
 }
 type Result<T> = result::Result<T, Error>;
 
+pub enum CacheLevel {
+    /// L1 data cache
+    L1D = 0,
+    /// L1 instruction cache
+    L1I = 1,
+    /// L2 cache
+    L2 = 2,
+    /// L3 cache
+    L3 = 3,
+}
+
+/// NOTE: CACHE SIZE file directory example,
+/// "/sys/devices/system/cpu/cpu0/cache/index0/size".
+pub fn get_cache_size(cache_level: CacheLevel) -> u32 {
+    let mut file_directory: String = "/sys/devices/system/cpu/cpu0/cache".to_string();
+    match cache_level {
+        CacheLevel::L1D => file_directory += "/index0/size",
+        CacheLevel::L1I => file_directory += "/index1/size",
+        CacheLevel::L2 => file_directory += "/index2/size",
+        CacheLevel::L3 => file_directory += "/index3/size",
+    }
+
+    let file_path = Path::new(&file_directory);
+    if !file_path.exists() {
+        error!("File: {} not exist.", file_directory);
+        0
+    } else {
+        info!("File: {} exist.", file_directory);
+
+        let src = fs::read_to_string(file_directory).expect("File not exists or file corrupted.");
+        // The content of the file is as simple as a size, like: "32K"
+        let src = src.trim();
+        let src_digits: u32 = src[0..src.len() - 1].parse().unwrap();
+        let src_unit = &src[src.len() - 1..];
+
+        src_digits
+            * match src_unit {
+                "K" => 1024,
+                "M" => 1024u32.pow(2),
+                "G" => 1024u32.pow(3),
+                _ => 1,
+            }
+    }
+}
+
+/// NOTE: CACHE COHERENCY LINE SIZE file directory example,
+/// "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size".
+pub fn get_cache_coherency_line_size(cache_level: CacheLevel) -> u32 {
+    let mut file_directory: String = "/sys/devices/system/cpu/cpu0/cache".to_string();
+    match cache_level {
+        CacheLevel::L1D => file_directory += "/index0/coherency_line_size",
+        CacheLevel::L1I => file_directory += "/index1/coherency_line_size",
+        CacheLevel::L2 => file_directory += "/index2/coherency_line_size",
+        CacheLevel::L3 => file_directory += "/index3/coherency_line_size",
+    }
+
+    let file_path = Path::new(&file_directory);
+    if !file_path.exists() {
+        error!("File: {} not exist.", file_directory);
+        0
+    } else {
+        info!("File: {} exist.", file_directory);
+
+        let src = fs::read_to_string(file_directory).expect("File not exists or file corrupted.");
+        src.trim().parse::<u32>().unwrap()
+    }
+}
+
+/// NOTE: CACHE NUMBER OF SETS file directory example,
+/// "/sys/devices/system/cpu/cpu0/cache/index0/number_of_sets".
+pub fn get_cache_number_of_sets(cache_level: CacheLevel) -> u32 {
+    let mut file_directory: String = "/sys/devices/system/cpu/cpu0/cache".to_string();
+    match cache_level {
+        CacheLevel::L1D => file_directory += "/index0/number_of_sets",
+        CacheLevel::L1I => file_directory += "/index1/number_of_sets",
+        CacheLevel::L2 => file_directory += "/index2/number_of_sets",
+        CacheLevel::L3 => file_directory += "/index3/number_of_sets",
+    }
+
+    let file_path = Path::new(&file_directory);
+    if !file_path.exists() {
+        error!("File: {} not exist.", file_directory);
+        0
+    } else {
+        info!("File: {} exist.", file_directory);
+
+        let src = fs::read_to_string(file_directory).expect("File not exists or file corrupted.");
+        src.trim().parse::<u32>().unwrap()
+    }
+}
+
 /// Creates the flattened device tree for this aarch64 VM.
 #[allow(clippy::too_many_arguments)]
 pub fn create_fdt<T: DeviceInfoForFdt + Clone + Debug, S: ::std::hash::BuildHasher>(
@@ -159,6 +256,54 @@ fn create_cpu_nodes(
 
     let num_cpus = vcpu_mpidr.len();
 
+    // Add cache info.
+    // L1 Data Cache Info.
+    let mut l1_d_cache_size: u32 = 0;
+    let mut l1_d_cache_line_size: u32 = 0;
+    let mut l1_d_cache_sets: u32 = 0;
+
+    // L1 Instruction Cache Info.
+    let mut l1_i_cache_size: u32 = 0;
+    let mut l1_i_cache_line_size: u32 = 0;
+    let mut l1_i_cache_sets: u32 = 0;
+
+    // L2 Cache Info.
+    let mut l2_cache_size: u32 = 0;
+    let mut l2_cache_line_size: u32 = 0;
+    let mut l2_cache_sets: u32 = 0;
+
+    // L3 Cache Info.
+    let mut l3_cache_size: u32 = 0;
+    let mut l3_cache_line_size: u32 = 0;
+    let mut l3_cache_sets: u32 = 0;
+
+    let cache_path = Path::new("/sys/devices/system/cpu/cpu0/cache");
+    let cache_exist: bool = cache_path.exists();
+    if !cache_exist {
+        error!("cache sysfs system does not exist.");
+    } else {
+        info!("cache sysfs system exists.");
+        // L1 Data Cache Info.
+        l1_d_cache_size = get_cache_size(CacheLevel::L1D);
+        l1_d_cache_line_size = get_cache_coherency_line_size(CacheLevel::L1D);
+        l1_d_cache_sets = get_cache_number_of_sets(CacheLevel::L1D);
+
+        // L1 Instruction Cache Info.
+        l1_i_cache_size = get_cache_size(CacheLevel::L1I);
+        l1_i_cache_line_size = get_cache_coherency_line_size(CacheLevel::L1I);
+        l1_i_cache_sets = get_cache_number_of_sets(CacheLevel::L1I);
+
+        // L2 Cache Info.
+        l2_cache_size = get_cache_size(CacheLevel::L2);
+        l2_cache_line_size = get_cache_coherency_line_size(CacheLevel::L2);
+        l2_cache_sets = get_cache_number_of_sets(CacheLevel::L2);
+
+        // L3 Cache Info.
+        l3_cache_size = get_cache_size(CacheLevel::L3);
+        l3_cache_line_size = get_cache_coherency_line_size(CacheLevel::L3);
+        l3_cache_sets = get_cache_number_of_sets(CacheLevel::L3);
+    }
+
     for (cpu_id, mpidr) in vcpu_mpidr.iter().enumerate().take(num_cpus) {
         let cpu_name = format!("cpu@{cpu_id:x}");
         let cpu_node = fdt.begin_node(&cpu_name)?;
@@ -173,6 +318,21 @@ fn create_cpu_nodes(
         fdt.property_u32("reg", (mpidr & 0x7FFFFF) as u32)?;
         fdt.property_u32("phandle", cpu_id as u32 + FIRST_VCPU_PHANDLE)?;
 
+        if cache_exist && l1_d_cache_size != 0 && l1_i_cache_size != 0 {
+            // Add cache info.
+            fdt.property_u32("d-cache-size", l1_d_cache_size)?;
+            fdt.property_u32("d-cache-line-size", l1_d_cache_line_size)?;
+            fdt.property_u32("d-cache-sets", l1_d_cache_sets)?;
+
+            fdt.property_u32("i-cache-size", l1_i_cache_size)?;
+            fdt.property_u32("i-cache-line-size", l1_i_cache_line_size)?;
+            fdt.property_u32("i-cache-sets", l1_i_cache_sets)?;
+
+            if l2_cache_size != 0 {
+                fdt.property_u32("next-level-cache", L2_CACHE_PHANDLE)?;
+            }
+        }
+
         // Add `numa-node-id` property if there is any numa config.
         if numa_nodes.len() > 1 {
             for numa_node_idx in 0..numa_nodes.len() {
@@ -186,6 +346,36 @@ fn create_cpu_nodes(
         fdt.end_node(cpu_node)?;
     }
 
+    if cache_exist && l2_cache_size != 0 {
+        let l2_cache_name = "l2-cache0";
+        let l2_cache_node = fdt.begin_node(l2_cache_name)?;
+        fdt.property_u32("phandle", L2_CACHE_PHANDLE)?;
+        fdt.property_string("compatible", "cache")?;
+        fdt.property_u32("cache-size", l2_cache_size)?;
+        fdt.property_u32("cache-line-size", l2_cache_line_size)?;
+        fdt.property_u32("cache-sets", l2_cache_sets)?;
+        fdt.property_u32("cache-level", 2)?;
+
+        if l3_cache_size != 0 {
+            fdt.property_u32("next-level-cache", L3_CACHE_PHANDLE)?;
+        }
+
+        fdt.end_node(l2_cache_node)?;
+    }
+
+    if cache_exist && l3_cache_size != 0 {
+        let l3_cache_name = "l3-cache0";
+        let l3_cache_node = fdt.begin_node(l3_cache_name)?;
+        fdt.property_u32("phandle", L3_CACHE_PHANDLE)?;
+        fdt.property_string("compatible", "cache")?;
+        fdt.property_null("cache-unified")?;
+        fdt.property_u32("cache-size", l3_cache_size)?;
+        fdt.property_u32("cache-line-size", l3_cache_line_size)?;
+        fdt.property_u32("cache-sets", l3_cache_sets)?;
+        fdt.property_u32("cache-level", 3)?;
+        fdt.end_node(l3_cache_node)?;
+    }
+
     if let Some(topology) = vcpu_topology {
         let (threads_per_core, cores_per_package, packages) = topology;
         let cpu_map_node = fdt.begin_node("cpu-map")?;
@@ -260,32 +450,86 @@ fn create_memory_node(
             fdt.end_node(memory_node)?;
         }
     } else {
-        let last_addr = guest_mem.last_addr().raw_value();
-        if last_addr < super::layout::MEM_32BIT_RESERVED_START.raw_value() {
-            // Case 1: all RAM is under the hole
-            let mem_size = last_addr - super::layout::RAM_START.raw_value() + 1;
-            let mem_reg_prop = [super::layout::RAM_START.raw_value(), mem_size];
-            let memory_node = fdt.begin_node("memory")?;
-            fdt.property_string("device_type", "memory")?;
-            fdt.property_array_u64("reg", &mem_reg_prop)?;
-            fdt.end_node(memory_node)?;
-        } else {
-            // Case 2: RAM is split by the hole
-            // Region 1: RAM before the hole
-            let mem_size = super::layout::MEM_32BIT_RESERVED_START.raw_value()
-                - super::layout::RAM_START.raw_value();
-            let mem_reg_prop = [super::layout::RAM_START.raw_value(), mem_size];
-            let memory_node_name = format!("memory@{:x}", super::layout::RAM_START.raw_value());
+        // Note: memory regions from "GuestMemory" are sorted and non-zero sized.
+        let ram_regions = {
+            let mut ram_regions = Vec::new();
+            let mut current_start = guest_mem
+                .iter()
+                .next()
+                .map(GuestMemoryRegion::start_addr)
+                .expect("GuestMemory must have one memory region at least")
+                .raw_value();
+            let mut current_end = current_start;
+
+            for (start, size) in guest_mem
+                .iter()
+                .map(|m| (m.start_addr().raw_value(), m.len()))
+            {
+                if current_end == start {
+                    // This zone is continuous with the previous one.
+                    current_end += size;
+                } else {
+                    ram_regions.push((current_start, current_end));
+
+                    current_start = start;
+                    current_end = start + size;
+                }
+            }
+
+            ram_regions.push((current_start, current_end));
+
+            ram_regions
+        };
+
+        if ram_regions.len() > 2 {
+            panic!(
+                "There should be up to two non-continuous regions, devidided by the
+                    gap at the end of 32bit address space."
+            );
+        }
+
+        // Create the memory node for memory region before the gap
+        {
+            let (first_region_start, first_region_end) = ram_regions
+                .first()
+                .expect("There should be at last one memory region");
+            let ram_start = super::layout::RAM_START.raw_value();
+            let mem_32bit_reserved_start = super::layout::MEM_32BIT_RESERVED_START.raw_value();
+
+            if !((first_region_start <= &ram_start)
+                && (first_region_end > &ram_start)
+                && (first_region_end <= &mem_32bit_reserved_start))
+            {
+                panic!(
+                    "Unexpected first memory region layout: (start: 0x{:08x}, end: 0x{:08x}).
+                    ram_start: 0x{:08x}, mem_32bit_reserved_start: 0x{:08x}",
+                    first_region_start, first_region_end, ram_start, mem_32bit_reserved_start
+                );
+            }
+
+            let mem_size = first_region_end - ram_start;
+            let mem_reg_prop = [ram_start, mem_size];
+            let memory_node_name = format!("memory@{:x}", ram_start);
             let memory_node = fdt.begin_node(&memory_node_name)?;
             fdt.property_string("device_type", "memory")?;
             fdt.property_array_u64("reg", &mem_reg_prop)?;
             fdt.end_node(memory_node)?;
+        }
 
-            // Region 2: RAM after the hole
-            let mem_size = last_addr - super::layout::RAM_64BIT_START.raw_value() + 1;
-            let mem_reg_prop = [super::layout::RAM_64BIT_START.raw_value(), mem_size];
-            let memory_node_name =
-                format!("memory@{:x}", super::layout::RAM_64BIT_START.raw_value());
+        // Create the memory map entry for memory region after the gap if any
+        if let Some((second_region_start, second_region_end)) = ram_regions.get(1) {
+            let ram_64bit_start = super::layout::RAM_64BIT_START.raw_value();
+
+            if second_region_start != &ram_64bit_start {
+                panic!(
+                    "Unexpected second memory region layout: start: 0x{:08x}, ram_64bit_start: 0x{:08x}",
+                    second_region_start, ram_64bit_start
+                );
+            }
+
+            let mem_size = second_region_end - ram_64bit_start;
+            let mem_reg_prop = [ram_64bit_start, mem_size];
+            let memory_node_name = format!("memory@{:x}", ram_64bit_start);
             let memory_node = fdt.begin_node(&memory_node_name)?;
             fdt.property_string("device_type", "memory")?;
             fdt.property_array_u64("reg", &mem_reg_prop)?;

arch/src/aarch64/mod.rs

@@ -19,7 +19,9 @@ use std::collections::HashMap;
 use std::convert::TryInto;
 use std::fmt::Debug;
 use std::sync::{Arc, Mutex};
-use vm_memory::{Address, GuestAddress, GuestMemory, GuestMemoryAtomic, GuestUsize};
+use vm_memory::{Address, GuestAddress, GuestMemory, GuestMemoryAtomic};
+
+pub const _NSIG: i32 = 65;
 
 /// Errors thrown while configuring aarch64 system.
 #[derive(Debug)]
@@ -81,8 +83,8 @@ pub fn configure_vcpu(
     Ok(mpidr)
 }
 
-pub fn arch_memory_regions(size: GuestUsize) -> Vec<(GuestAddress, usize, RegionType)> {
-    let mut regions = vec![
+pub fn arch_memory_regions() -> Vec<(GuestAddress, usize, RegionType)> {
+    vec![
         // 0 MiB ~ 256 MiB: UEFI, GIC and legacy devices
         (
             GuestAddress(0),
@@ -101,39 +103,21 @@ pub fn arch_memory_regions(size: GuestUsize) -> Vec<(GuestAddress, usize, Region
             layout::PCI_MMCONFIG_SIZE as usize,
             RegionType::Reserved,
         ),
-    ];
-
-    let ram_32bit_space_size =
-        layout::MEM_32BIT_RESERVED_START.unchecked_offset_from(layout::RAM_START);
-
-    // RAM space
-    // Case1: guest memory fits before the gap
-    if size <= ram_32bit_space_size {
-        regions.push((layout::RAM_START, size as usize, RegionType::Ram));
-    // Case2: guest memory extends beyond the gap
-    } else {
-        // Push memory before the gap
-        regions.push((
+        // 1GiB ~ 4032 MiB: RAM before the gap
+        (
             layout::RAM_START,
-            ram_32bit_space_size as usize,
+            layout::MEM_32BIT_RESERVED_START.unchecked_offset_from(layout::RAM_START) as usize,
             RegionType::Ram,
-        ));
-        // Other memory is placed after 4GiB
-        regions.push((
-            layout::RAM_64BIT_START,
-            (size - ram_32bit_space_size) as usize,
-            RegionType::Ram,
-        ));
-    }
-
-    // Add the 32-bit reserved memory hole as a reserved region
-    regions.push((
-        layout::MEM_32BIT_RESERVED_START,
-        layout::MEM_32BIT_RESERVED_SIZE as usize,
-        RegionType::Reserved,
-    ));
-
-    regions
+        ),
+        // 4GiB ~ inf: RAM after the gap
+        (layout::RAM_64BIT_START, usize::MAX, RegionType::Ram),
+        // Add the 32-bit reserved memory hole as a reserved region
+        (
+            layout::MEM_32BIT_RESERVED_START,
+            layout::MEM_32BIT_RESERVED_SIZE as usize,
+            RegionType::Reserved,
+        ),
+    ]
 }
 
 /// Configures the system and should be called once per vm before starting vcpu threads.
@@ -196,11 +180,8 @@ pub fn initramfs_load_addr(
     }
 }
 
-pub fn get_host_cpu_phys_bits() -> u8 {
-    // A dummy hypervisor created only for querying the host IPA size and will
-    // be freed after the query.
-    let hv = hypervisor::new().unwrap();
-    let host_cpu_phys_bits = hv.get_host_ipa_limit().try_into().unwrap();
+pub fn get_host_cpu_phys_bits(hypervisor: &Arc<dyn hypervisor::Hypervisor>) -> u8 {
+    let host_cpu_phys_bits = hypervisor.get_host_ipa_limit().try_into().unwrap();
     if host_cpu_phys_bits == 0 {
         // Host kernel does not support `get_host_ipa_limit`,
         // we return the default value 40 here.
@@ -215,26 +196,12 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_arch_memory_regions_dram_2gb() {
-        let regions = arch_memory_regions((1usize << 31) as u64); //2GB
-        assert_eq!(5, regions.len());
-        assert_eq!(layout::RAM_START, regions[3].0);
-        assert_eq!((1usize << 31), regions[3].1);
-        assert_eq!(RegionType::Ram, regions[3].2);
-        assert_eq!(RegionType::Reserved, regions[4].2);
-    }
-
-    #[test]
-    fn test_arch_memory_regions_dram_4gb() {
-        let regions = arch_memory_regions((1usize << 32) as u64); //4GB
-        let ram_32bit_space_size =
-            layout::MEM_32BIT_RESERVED_START.unchecked_offset_from(layout::RAM_START) as usize;
+    fn test_arch_memory_regions_dram() {
+        let regions = arch_memory_regions();
         assert_eq!(6, regions.len());
         assert_eq!(layout::RAM_START, regions[3].0);
-        assert_eq!(ram_32bit_space_size, regions[3].1);
         assert_eq!(RegionType::Ram, regions[3].2);
         assert_eq!(RegionType::Reserved, regions[5].2);
         assert_eq!(RegionType::Ram, regions[4].2);
-        assert_eq!(((1usize << 32) - ram_32bit_space_size), regions[4].1);
     }
 }

arch/src/aarch64/regs.rs

@@ -1,18 +1,17 @@
 // Copyright 2022 Arm Limited (or its affiliates). All rights reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-///
-/// AArch64 system register encoding:
-/// See https://developer.arm.com/documentation/ddi0487 (chapter D12)
-///
-///   31      22  21 20 19 18 16 15 12 11  8 7   5 4  0
-///  +----------+---+-----+-----+-----+-----+-----+----+
-///  |1101010100| L | op0 | op1 | CRn | CRm | op2 | Rt |
-///  +----------+---+-----+-----+-----+-----+-----+----+
-///
-/// Notes:
-/// - L and Rt are reserved as implementation defined fields, ignored.
-///
+// AArch64 system register encoding:
+// See https://developer.arm.com/documentation/ddi0487 (chapter D12)
+//
+//   31      22  21 20 19 18 16 15 12 11  8 7   5 4  0
+//  +----------+---+-----+-----+-----+-----+-----+----+
+//  |1101010100| L | op0 | op1 | CRn | CRm | op2 | Rt |
+//  +----------+---+-----+-----+-----+-----+-----+----+
+//
+// Notes:
+// - L and Rt are reserved as implementation defined fields, ignored.
+
 const SYSREG_HEAD: u32 = 0b1101010100u32 << 22;
 const SYSREG_OP0_SHIFT: u32 = 19;
 const SYSREG_OP0_MASK: u32 = 0b11u32 << 19;

arch/src/lib.rs

@@ -82,7 +82,7 @@ pub mod aarch64;
 pub use aarch64::{
     arch_memory_regions, configure_system, configure_vcpu, fdt::DeviceInfoForFdt,
     get_host_cpu_phys_bits, initramfs_load_addr, layout, layout::CMDLINE_MAX_SIZE,
-    layout::IRQ_BASE, uefi, EntryPoint,
+    layout::IRQ_BASE, uefi, EntryPoint, _NSIG,
 };
 
 #[cfg(target_arch = "x86_64")]
@@ -92,7 +92,7 @@ pub mod x86_64;
 pub use x86_64::{
     arch_memory_regions, configure_system, configure_vcpu, generate_common_cpuid,
     get_host_cpu_phys_bits, initramfs_load_addr, layout, layout::CMDLINE_MAX_SIZE,
-    layout::CMDLINE_START, regs, CpuidFeatureEntry, EntryPoint,
+    layout::CMDLINE_START, regs, CpuidFeatureEntry, EntryPoint, _NSIG,
 };
 
 /// Safe wrapper for `sysconf(_SC_PAGESIZE)`.

arch/src/x86_64/mod.rs

@@ -16,7 +16,7 @@ use crate::GuestMemoryMmap;
 use crate::InitramfsConfig;
 use crate::RegionType;
 use hypervisor::arch::x86::{CpuIdEntry, CPUID_FLAG_VALID_INDEX};
-use hypervisor::{HypervisorCpuError, HypervisorError};
+use hypervisor::{CpuVendor, HypervisorCpuError, HypervisorError};
 use linux_loader::loader::bootparam::boot_params;
 use linux_loader::loader::elf::start_info::{
     hvm_memmap_table_entry, hvm_modlist_entry, hvm_start_info,
@@ -53,6 +53,8 @@ const KVM_FEATURE_ASYNC_PF_VMEXIT_BIT: u8 = 10;
 #[cfg(feature = "tdx")]
 const KVM_FEATURE_STEAL_TIME_BIT: u8 = 5;
 
+pub const _NSIG: i32 = 65;
+
 #[derive(Debug, Copy, Clone)]
 /// Specifies the entry point address where the guest must start
 /// executing code, as well as which of the supported boot protocols
@@ -208,7 +210,6 @@ impl From<Error> for super::Error {
     }
 }
 
-#[allow(clippy::upper_case_acronyms)]
 #[derive(Copy, Clone, Debug)]
 pub enum CpuidReg {
     EAX,
@@ -774,6 +775,13 @@ pub fn configure_vcpu(
     CpuidPatch::set_cpuid_reg(&mut cpuid, 0xb, None, CpuidReg::EDX, u32::from(id));
     CpuidPatch::set_cpuid_reg(&mut cpuid, 0x1f, None, CpuidReg::EDX, u32::from(id));
 
+    // Set ApicId in cpuid for each vcpu
+    // SAFETY: get host cpuid when eax=1
+    let mut cpu_ebx = unsafe { core::arch::x86_64::__cpuid(1) }.ebx;
+    cpu_ebx &= 0xffffff;
+    cpu_ebx |= (id as u32) << 24;
+    CpuidPatch::set_cpuid_reg(&mut cpuid, 0x1, None, CpuidReg::EBX, cpu_ebx);
+
     // The TSC frequency CPUID leaf should not be included when running with HyperV emulation
     if !kvm_hyperv {
         if let Some(tsc_khz) = vcpu.tsc_khz().map_err(Error::GetTscFrequency)? {
@@ -826,47 +834,29 @@ pub fn configure_vcpu(
 /// These should be used to configure the GuestMemory structure for the platform.
 /// For x86_64 all addresses are valid from the start of the kernel except a
 /// carve out at the end of 32bit address space.
-pub fn arch_memory_regions(size: GuestUsize) -> Vec<(GuestAddress, usize, RegionType)> {
-    let reserved_memory_gap_start = layout::MEM_32BIT_RESERVED_START
-        .checked_add(layout::MEM_32BIT_DEVICES_SIZE)
-        .expect("32-bit reserved region is too large");
-
-    let requested_memory_size = GuestAddress(size);
-    let mut regions = Vec::new();
-
-    // case1: guest memory fits before the gap
-    if size <= layout::MEM_32BIT_RESERVED_START.raw_value() {
-        regions.push((GuestAddress(0), size as usize, RegionType::Ram));
-    // case2: guest memory extends beyond the gap
-    } else {
-        // push memory before the gap
-        regions.push((
+pub fn arch_memory_regions() -> Vec<(GuestAddress, usize, RegionType)> {
+    vec![
+        // 0 GiB ~ 3GiB: memory before the gap
+        (
             GuestAddress(0),
             layout::MEM_32BIT_RESERVED_START.raw_value() as usize,
             RegionType::Ram,
-        ));
-        regions.push((
-            layout::RAM_64BIT_START,
-            requested_memory_size.unchecked_offset_from(layout::MEM_32BIT_RESERVED_START) as usize,
-            RegionType::Ram,
-        ));
-    }
-
-    // Add the 32-bit device memory hole as a sub region.
-    regions.push((
-        layout::MEM_32BIT_RESERVED_START,
-        layout::MEM_32BIT_DEVICES_SIZE as usize,
-        RegionType::SubRegion,
-    ));
-
-    // Add the 32-bit reserved memory hole as a sub region.
-    regions.push((
-        reserved_memory_gap_start,
-        (layout::MEM_32BIT_RESERVED_SIZE - layout::MEM_32BIT_DEVICES_SIZE) as usize,
-        RegionType::Reserved,
-    ));
-
-    regions
+        ),
+        // 4 GiB ~ inf: memory after the gap
+        (layout::RAM_64BIT_START, usize::MAX, RegionType::Ram),
+        // 3 GiB ~ 3712 MiB: 32-bit device memory hole
+        (
+            layout::MEM_32BIT_RESERVED_START,
+            layout::MEM_32BIT_DEVICES_SIZE as usize,
+            RegionType::SubRegion,
+        ),
+        // 3712 MiB ~ 3968 MiB: 32-bit reserved memory hole
+        (
+            layout::MEM_32BIT_RESERVED_START.unchecked_add(layout::MEM_32BIT_DEVICES_SIZE),
+            (layout::MEM_32BIT_RESERVED_SIZE - layout::MEM_32BIT_DEVICES_SIZE) as usize,
+            RegionType::Reserved,
+        ),
+    ]
 }
 
 /// Configures the system and should be called once per vm before starting vcpu threads.
@@ -964,30 +954,102 @@ fn configure_pvh(
     // Create the memory map entries.
     add_memmap_entry(&mut memmap, 0, layout::EBDA_START.raw_value(), E820_RAM);
 
-    let mem_end = guest_mem.last_addr();
+    // Merge continuous memory regions into one region.
+    // Note: memory regions from "GuestMemory" are sorted and non-zero sized.
+    let ram_regions = {
+        let mut ram_regions = Vec::new();
+        let mut current_start = guest_mem
+            .iter()
+            .next()
+            .map(GuestMemoryRegion::start_addr)
+            .expect("GuestMemory must have one memory region at least")
+            .raw_value();
+        let mut current_end = current_start;
 
-    if mem_end < layout::MEM_32BIT_RESERVED_START {
-        add_memmap_entry(
-            &mut memmap,
-            layout::HIGH_RAM_START.raw_value(),
-            mem_end.unchecked_offset_from(layout::HIGH_RAM_START) + 1,
-            E820_RAM,
-        );
-    } else {
-        add_memmap_entry(
-            &mut memmap,
-            layout::HIGH_RAM_START.raw_value(),
-            layout::MEM_32BIT_RESERVED_START.unchecked_offset_from(layout::HIGH_RAM_START),
-            E820_RAM,
-        );
-        if mem_end > layout::RAM_64BIT_START {
-            add_memmap_entry(
-                &mut memmap,
-                layout::RAM_64BIT_START.raw_value(),
-                mem_end.unchecked_offset_from(layout::RAM_64BIT_START) + 1,
-                E820_RAM,
-            );
+        for (start, size) in guest_mem
+            .iter()
+            .map(|m| (m.start_addr().raw_value(), m.len()))
+        {
+            if current_end == start {
+                // This zone is continuous with the previous one.
+                current_end += size;
+            } else {
+                ram_regions.push((current_start, current_end));
+
+                current_start = start;
+                current_end = start + size;
+            }
         }
+
+        ram_regions.push((current_start, current_end));
+
+        ram_regions
+    };
+
+    if ram_regions.len() > 2 {
+        error!(
+            "There should be up to two non-continuous regions, devidided by the
+            gap at the end of 32bit address space (e.g. between 3G and 4G)."
+        );
+        return Err(super::Error::MemmapTableSetup);
+    }
+
+    // Create the memory map entry for memory region before the gap
+    {
+        let (first_region_start, first_region_end) =
+            ram_regions.first().ok_or(super::Error::MemmapTableSetup)?;
+        let high_ram_start = layout::HIGH_RAM_START.raw_value();
+        let mem_32bit_reserved_start = layout::MEM_32BIT_RESERVED_START.raw_value();
+
+        if !((first_region_start <= &high_ram_start)
+            && (first_region_end > &high_ram_start)
+            && (first_region_end <= &mem_32bit_reserved_start))
+        {
+            error!(
+                "Unexpected first memory region layout: (start: 0x{:08x}, end: 0x{:08x}).
+                high_ram_start: 0x{:08x}, mem_32bit_reserved_start: 0x{:08x}",
+                first_region_start, first_region_end, high_ram_start, mem_32bit_reserved_start
+            );
+
+            return Err(super::Error::MemmapTableSetup);
+        }
+
+        info!(
+            "create_memmap_entry, start: 0x{:08x}, end: 0x{:08x})",
+            high_ram_start, first_region_end
+        );
+
+        add_memmap_entry(
+            &mut memmap,
+            high_ram_start,
+            first_region_end - high_ram_start,
+            E820_RAM,
+        );
+    }
+
+    // Create the memory map entry for memory region after the gap if any
+    if let Some((second_region_start, second_region_end)) = ram_regions.get(1) {
+        let ram_64bit_start = layout::RAM_64BIT_START.raw_value();
+
+        if second_region_start != &ram_64bit_start {
+            error!(
+                "Unexpected second memory region layout: start: 0x{:08x}, ram_64bit_start: 0x{:08x}",
+                second_region_start, ram_64bit_start
+            );
+
+            return Err(super::Error::MemmapTableSetup);
+        }
+
+        info!(
+            "create_memmap_entry, start: 0x{:08x}, end: 0x{:08x})",
+            ram_64bit_start, second_region_end
+        );
+        add_memmap_entry(
+            &mut memmap,
+            ram_64bit_start,
+            second_region_end - ram_64bit_start,
+            E820_RAM,
+        );
     }
 
     add_memmap_entry(
@@ -1077,7 +1139,7 @@ pub fn initramfs_load_addr(
     Ok(aligned_addr)
 }
 
-pub fn get_host_cpu_phys_bits() -> u8 {
+pub fn get_host_cpu_phys_bits(hypervisor: &Arc<dyn hypervisor::Hypervisor>) -> u8 {
     // SAFETY: call cpuid with valid leaves
     unsafe {
         let leaf = x86_64::__cpuid(0x8000_0000);
@@ -1086,9 +1148,7 @@ pub fn get_host_cpu_phys_bits() -> u8 {
         // Some physical address bits may become reserved when the feature is enabled.
         // See AMD64 Architecture Programmer's Manual Volume 2, Section 7.10.1
         let reduced = if leaf.eax >= 0x8000_001f
-            && leaf.ebx == 0x6874_7541    // Vendor ID: AuthenticAMD
-            && leaf.ecx == 0x444d_4163
-            && leaf.edx == 0x6974_6e65
+            && matches!(hypervisor.get_cpu_vendor(), CpuVendor::AMD)
             && x86_64::__cpuid(0x8000_001f).eax & 0x1 != 0
         {
             (x86_64::__cpuid(0x8000_001f).ebx >> 6) & 0x3f
@@ -1223,16 +1283,8 @@ mod tests {
     use super::*;
 
     #[test]
-    fn regions_lt_4gb() {
-        let regions = arch_memory_regions(1 << 29);
-        assert_eq!(3, regions.len());
-        assert_eq!(GuestAddress(0), regions[0].0);
-        assert_eq!(1usize << 29, regions[0].1);
-    }
-
-    #[test]
-    fn regions_gt_4gb() {
-        let regions = arch_memory_regions((1 << 32) + 0x8000);
+    fn regions_base_addr() {
+        let regions = arch_memory_regions();
         assert_eq!(4, regions.len());
         assert_eq!(GuestAddress(0), regions[0].0);
         assert_eq!(GuestAddress(1 << 32), regions[1].0);
@@ -1256,11 +1308,10 @@ mod tests {
         assert!(config_err.is_err());
 
         // Now assigning some memory that falls before the 32bit memory hole.
-        let mem_size = 128 << 20;
-        let arch_mem_regions = arch_memory_regions(mem_size);
+        let arch_mem_regions = arch_memory_regions();
         let ram_regions: Vec<(GuestAddress, usize)> = arch_mem_regions
             .iter()
-            .filter(|r| r.2 == RegionType::Ram)
+            .filter(|r| r.2 == RegionType::Ram && r.1 != usize::MAX)
             .map(|r| (r.0, r.1))
             .collect();
         let gm = GuestMemoryMmap::from_ranges(&ram_regions).unwrap();
@@ -1278,48 +1329,18 @@ mod tests {
         )
         .unwrap();
 
-        // Now assigning some memory that is equal to the start of the 32bit memory hole.
-        let mem_size = 3328 << 20;
-        let arch_mem_regions = arch_memory_regions(mem_size);
-        let ram_regions: Vec<(GuestAddress, usize)> = arch_mem_regions
-            .iter()
-            .filter(|r| r.2 == RegionType::Ram)
-            .map(|r| (r.0, r.1))
-            .collect();
-        let gm = GuestMemoryMmap::from_ranges(&ram_regions).unwrap();
-        configure_system(
-            &gm,
-            GuestAddress(0),
-            &None,
-            no_vcpus,
-            None,
-            None,
-            None,
-            None,
-            None,
-        )
-        .unwrap();
-
-        configure_system(
-            &gm,
-            GuestAddress(0),
-            &None,
-            no_vcpus,
-            None,
-            None,
-            None,
-            None,
-            None,
-        )
-        .unwrap();
-
         // Now assigning some memory that falls after the 32bit memory hole.
-        let mem_size = 3330 << 20;
-        let arch_mem_regions = arch_memory_regions(mem_size);
+        let arch_mem_regions = arch_memory_regions();
         let ram_regions: Vec<(GuestAddress, usize)> = arch_mem_regions
             .iter()
             .filter(|r| r.2 == RegionType::Ram)
-            .map(|r| (r.0, r.1))
+            .map(|r| {
+                if r.1 == usize::MAX {
+                    (r.0, 128 << 20)
+                } else {
+                    (r.0, r.1)
+                }
+            })
             .collect();
         let gm = GuestMemoryMmap::from_ranges(&ram_regions).unwrap();
         configure_system(

block_util/Cargo.toml

@@ -8,18 +8,18 @@ edition = "2021"
 default = []
 
 [dependencies]
-io-uring = "0.5.12"
+io-uring = "0.5.13"
 libc = "0.2.139"
 log = "0.4.17"
 qcow = { path = "../qcow" }
 smallvec = "1.10.0"
-thiserror = "1.0.38"
-versionize = "0.1.9"
+thiserror = "1.0.40"
+versionize = "0.1.10"
 versionize_derive = "0.1.4"
 vhdx = { path = "../vhdx" }
 virtio-bindings = { version = "0.2.0", features = ["virtio-v5_0_0"] }
-virtio-queue = "0.7.0"
-vm-memory = { version = "0.10.0", features = ["backend-mmap", "backend-atomic", "backend-bitmap"] }
+virtio-queue = "0.8.0"
+vm-memory = { version = "0.11.0", features = ["backend-mmap", "backend-atomic", "backend-bitmap"] }
 vm-virtio = { path = "../vm-virtio" }
 vmm-sys-util = "0.11.0"
 

build.rs

@@ -17,8 +17,8 @@ fn main() {
     }
 
     // This println!() has a special behavior, as it will set the environment
-    // variable BUILT_VERSION, so that it can be reused from the binary.
+    // variable BUILD_VERSION, so that it can be reused from the binary.
     // Particularly, this is used from src/main.rs to display the exact
     // version.
-    println!("cargo:rustc-env=BUILT_VERSION={version}");
+    println!("cargo:rustc-env=BUILD_VERSION={version}");
 }

devices/Cargo.toml

@@ -6,19 +6,19 @@ edition = "2021"
 
 [dependencies]
 acpi_tables = { git = "https://github.com/rust-vmm/acpi_tables", branch = "main"  }
-anyhow = "1.0.69"
+anyhow = "1.0.71"
 arch = { path = "../arch" }
-bitflags = "1.3.2"
+bitflags = "2.3.3"
 byteorder = "1.4.3"
 hypervisor = { path = "../hypervisor" }
 libc = "0.2.139"
 log = "0.4.17"
-thiserror = "1.0.38"
+thiserror = "1.0.40"
 tpm = { path = "../tpm" }
-versionize = "0.1.9"
+versionize = "0.1.10"
 versionize_derive = "0.1.4"
 vm-device = { path = "../vm-device" }
-vm-memory = "0.10.0"
+vm-memory = "0.11.0"
 vm-migration = { path = "../vm-migration" }
 vmm-sys-util = "0.11.0"
 

devices/src/acpi.rs

@@ -4,7 +4,7 @@
 //
 
 use super::AcpiNotificationFlags;
-use acpi_tables::{aml, aml::Aml};
+use acpi_tables::{aml, Aml, AmlSink};
 use std::sync::{Arc, Barrier};
 use std::time::Instant;
 use vm_device::interrupt::InterruptSourceGroup;
@@ -103,11 +103,11 @@ impl BusDevice for AcpiGedDevice {
 }
 
 impl Aml for AcpiGedDevice {
-    fn append_aml_bytes(&self, bytes: &mut Vec<u8>) {
+    fn to_aml_bytes(&self, sink: &mut dyn AmlSink) {
         aml::Device::new(
             "_SB_.GEC_".into(),
             vec![
-                &aml::Name::new("_HID".into(), &aml::EisaName::new("PNP0A06")),
+                &aml::Name::new("_HID".into(), &aml::EISAName::new("PNP0A06")),
                 &aml::Name::new("_UID".into(), &"Generic Event Controller"),
                 &aml::Name::new(
                     "_CRS".into(),
@@ -116,17 +116,19 @@ impl Aml for AcpiGedDevice {
                         true,
                         self.address.0,
                         self.address.0 + GED_DEVICE_ACPI_SIZE as u64 - 1,
+                        None,
                     )]),
                 ),
                 &aml::OpRegion::new(
                     "GDST".into(),
                     aml::OpRegionSpace::SystemMemory,
-                    self.address.0 as usize,
-                    GED_DEVICE_ACPI_SIZE,
+                    &(self.address.0 as usize),
+                    &GED_DEVICE_ACPI_SIZE,
                 ),
                 &aml::Field::new(
                     "GDST".into(),
                     aml::FieldAccessType::Byte,
+                    aml::FieldLockRule::NoLock,
                     aml::FieldUpdateRule::WriteAsZeroes,
                     vec![aml::FieldEntry::Named(*b"GDAT", 8)],
                 ),
@@ -163,7 +165,7 @@ impl Aml for AcpiGedDevice {
                 ),
             ],
         )
-        .append_aml_bytes(bytes);
+        .to_aml_bytes(sink);
         aml::Device::new(
             "_SB_.GED_".into(),
             vec![
@@ -187,7 +189,7 @@ impl Aml for AcpiGedDevice {
                 ),
             ],
         )
-        .append_aml_bytes(bytes)
+        .to_aml_bytes(sink)
     }
 }
 

docs/api.md

@@ -1,18 +1,21 @@
 - [Cloud Hypervisor API](#cloud-hypervisor-api)
   - [External API](#external-api)
     - [REST API](#rest-api)
-    - [Location and availability](#location-and-availability)
-    - [Endpoints](#endpoints)
-      - [Virtual Machine Manager (VMM) Actions](#virtual-machine-manager-vmm-actions)
-      - [Virtual Machine (VM) Actions](#virtual-machine-vm-actions)
-    - [REST API Examples](#rest-api-examples)
-      - [Create a Virtual Machine](#create-a-virtual-machine)
-      - [Boot a Virtual Machine](#boot-a-virtual-machine)
-      - [Dump a Virtual Machine Information](#dump-a-virtual-machine-information)
-      - [Reboot a Virtual Machine](#reboot-a-virtual-machine)
-      - [Shut a Virtual Machine Down](#shut-a-virtual-machine-down)
+      - [REST API Location and availability](#rest-api-location-and-availability)
+      - [REST API Endpoints](#rest-api-endpoints)
+        - [Virtual Machine Manager (VMM) Actions](#virtual-machine-manager-vmm-actions)
+        - [Virtual Machine (VM) Actions](#virtual-machine-vm-actions)
+      - [REST API Examples](#rest-api-examples)
+        - [Create a Virtual Machine](#create-a-virtual-machine)
+        - [Boot a Virtual Machine](#boot-a-virtual-machine)
+        - [Dump a Virtual Machine Information](#dump-a-virtual-machine-information)
+        - [Reboot a Virtual Machine](#reboot-a-virtual-machine)
+        - [Shut a Virtual Machine Down](#shut-a-virtual-machine-down)
+    - [D-Bus API](#d-bus-api)
+      - [D-Bus API Location and availability](#d-bus-api-location-and-availability)
+      - [D-Bus API Interface](#d-bus-api-interface)
     - [Command Line Interface](#command-line-interface)
-    - [REST API and CLI Architectural Relationship](#rest-api-and-cli-architectural-relationship)
+    - [REST API, D-Bus API and CLI Architectural Relationship](#rest-api-and-cli-architectural-relationship)
   - [Internal API](#internal-api)
     - [Goals and Design](#goals-and-design)
   - [End to End Example](#end-to-end-example)
@@ -21,9 +24,11 @@
 
 The Cloud Hypervisor API is made of 2 distinct interfaces:
 
-1. **The external API**. This is the user facing API. Users and operators can
-   control and manage Cloud Hypervisor through either a REST API or a Command
-   Line Interface (CLI).
+1. **The External API** This is the user facing API. Users and operators
+   can control and manage the Cloud Hypervisor through various options
+   including a REST API, a Command Line Interface (CLI) or a D-Bus based API,
+   which is not compiled into Cloud Hypervisor by default.
+
 1. **The internal API**, based on [rust's Multi-Producer, Single-Consumer (MPSC)](https://doc.rust-lang.org/std/sync/mpsc/)
    module. This API is used internally by the Cloud Hypervisor threads to
    communicate between each others.
@@ -40,10 +45,10 @@ API triggers VM and VMM specific actions, and as such it is designed as a
 collection of RPC-style, static methods.
 
 The API is [OpenAPI 3.0](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md)
-compliant. Please consult the [Cloud Hypervisor API](https://raw.githubusercontent.com/cloud-hypervisor/cloud-hypervisor/master/vmm/src/api/openapi/cloud-hypervisor.yaml)
-document for more details about the API payloads and responses.
+compliant. Please consult the [Cloud Hypervisor OpenAPI Document](https://raw.githubusercontent.com/cloud-hypervisor/cloud-hypervisor/master/vmm/src/api/openapi/cloud-hypervisor.yaml)
+for more details about the API payloads and responses.
 
-### Location and availability
+#### REST API Location and availability
 
 The REST API is available as soon as the Cloud Hypervisor binary is started,
 through a local UNIX socket.
@@ -65,48 +70,55 @@ Cloud Hypervisor Guest
     Disk(s): None
 ```
 
-### Endpoints
+#### REST API Endpoints
 
 The Cloud Hypervisor API exposes the following actions through its endpoints:
 
-#### Virtual Machine Manager (VMM) Actions
+##### Virtual Machine Manager (VMM) Actions
 
 | Action                              | Endpoint        | Request Body | Response Body              | Prerequisites      |
 | ----------------------------------- | --------------- | ------------ | -------------------------- | ------------------ |
 | Check for the REST API availability | `/vmm.ping`     | N/A          | `/schemas/VmmPingResponse` | N/A                |
 | Shut the VMM down                   | `/vmm.shutdown` | N/A          | N/A                        | The VMM is running |
 
-#### Virtual Machine (VM) Actions
+##### Virtual Machine (VM) Actions
 
-| Action                             | Endpoint              | Request Body                | Response Body            | Prerequisites                    |
-| ---------------------------------- | --------------------- | --------------------------- | ------------------------ | -------------------------------- |
-| Create the VM                      | `/vm.create`          | `/schemas/VmConfig`         | N/A                      | The VM is not created yet        |
-| Delete the VM                      | `/vm.delete`          | N/A                         | N/A                      | N/A                              |
-| Boot the VM                        | `/vm.boot`            | N/A                         | N/A                      | The VM is created but not booted |
-| Shut the VM down                   | `/vm.shutdown`        | N/A                         | N/A                      | The VM is booted                 |
-| Reboot the VM                      | `/vm.reboot`          | N/A                         | N/A                      | The VM is booted                 |
-| Trigger power button of the VM     | `/vm.power-button`    | N/A                         | N/A                      | The VM is booted                 |
-| Pause the VM                       | `/vm.pause`           | N/A                         | N/A                      | The VM is booted                 |
-| Resume the VM                      | `/vm.resume`          | N/A                         | N/A                      | The VM is paused                 |
-| Task a snapshot of the VM          | `/vm.snapshot`        | `/schemas/VmSnapshotConfig` | N/A                      | The VM is paused                 |
-| Perform a coredump of the VM       | `/vm.coredump`        | `/schemas/VmCoredumpData`   | N/A                      | The VM is paused                 |
-| Restore the VM from a snapshot     | `/vm.restore`         | `/schemas/RestoreConfig`    | N/A                      | The VM is created but not booted |
-| Add/remove CPUs to/from the VM     | `/vm.resize`          | `/schemas/VmResize`         | N/A                      | The VM is booted                 |
-| Add/remove memory from the VM      | `/vm.resize`          | `/schemas/VmResize`         | N/A                      | The VM is booted                 |
-| Add/remove memory from a zone      | `/vm.resize-zone`     | `/schemas/VmResizeZone`     | N/A                      | The VM is booted                 |
-| Dump the VM information            | `/vm.info`            | N/A                         | `/schemas/VmInfo`        | The VM is created                |
-| Add VFIO PCI device to the VM      | `/vm.add-device`      | `/schemas/VmAddDevice`      | `/schemas/PciDeviceInfo` | The VM is booted                 |
-| Add disk device to the VM          | `/vm.add-disk`        | `/schemas/DiskConfig`       | `/schemas/PciDeviceInfo` | The VM is booted                 |
-| Add fs device to the VM            | `/vm.add-fs`          | `/schemas/FsConfig`         | `/schemas/PciDeviceInfo` | The VM is booted                 |
-| Add pmem device to the VM          | `/vm.add-pmem`        | `/schemas/PmemConfig`       | `/schemas/PciDeviceInfo` | The VM is booted                 |
-| Add network device to the VM       | `/vm.add-net`         | `/schemas/NetConfig`        | `/schemas/PciDeviceInfo` | The VM is booted                 |
-| Add userspace PCI device to the VM | `/vm.add-user-device` | `/schemas/VmAddUserDevice`  | `/schemas/PciDeviceInfo` | The VM is booted                 |
-| Add vdpa device to the VM          | `/vm.add-vdpa`        | `/schemas/VdpaConfig`       | `/schemas/PciDeviceInfo` | The VM is booted                 |
-| Add vsock device to the VM         | `/vm.add-vsock`       | `/schemas/VsockConfig`      | `/schemas/PciDeviceInfo` | The VM is booted                 |
-| Remove device from the VM          | `/vm.remove-device`   | `/schemas/VmRemoveDevice`   | N/A                      | The VM is booted                 |
-| Dump the VM counters               | `/vm.counters`        | N/A                         | `/schemas/VmCounters`    | The VM is booted                 |
+| Action                             | Endpoint                | Request Body                    | Response Body            | Prerequisites                                          |
+| ---------------------------------- | ----------------------- | ------------------------------- | ------------------------ | ------------------------------------------------------ |
+| Create the VM                      | `/vm.create`            | `/schemas/VmConfig`             | N/A                      | The VM is not created yet                              |
+| Delete the VM                      | `/vm.delete`            | N/A                             | N/A                      | N/A                                                    |
+| Boot the VM                        | `/vm.boot`              | N/A                             | N/A                      | The VM is created but not booted                       |
+| Shut the VM down                   | `/vm.shutdown`          | N/A                             | N/A                      | The VM is booted                                       |
+| Reboot the VM                      | `/vm.reboot`            | N/A                             | N/A                      | The VM is booted                                       |
+| Trigger power button of the VM     | `/vm.power-button`      | N/A                             | N/A                      | The VM is booted                                       |
+| Pause the VM                       | `/vm.pause`             | N/A                             | N/A                      | The VM is booted                                       |
+| Resume the VM                      | `/vm.resume`            | N/A                             | N/A                      | The VM is paused                                       |
+| Task a snapshot of the VM          | `/vm.snapshot`          | `/schemas/VmSnapshotConfig`     | N/A                      | The VM is paused                                       |
+| Perform a coredump of the VM*      | `/vm.coredump`          | `/schemas/VmCoredumpData`       | N/A                      | The VM is paused                                       |
+| Restore the VM from a snapshot     | `/vm.restore`           | `/schemas/RestoreConfig`        | N/A                      | The VM is created but not booted                       |
+| Add/remove CPUs to/from the VM     | `/vm.resize`            | `/schemas/VmResize`             | N/A                      | The VM is booted                                       |
+| Add/remove memory from the VM      | `/vm.resize`            | `/schemas/VmResize`             | N/A                      | The VM is booted                                       |
+| Add/remove memory from a zone      | `/vm.resize-zone`       | `/schemas/VmResizeZone`         | N/A                      | The VM is booted                                       |
+| Dump the VM information            | `/vm.info`              | N/A                             | `/schemas/VmInfo`        | The VM is created                                      |
+| Add VFIO PCI device to the VM      | `/vm.add-device`        | `/schemas/VmAddDevice`          | `/schemas/PciDeviceInfo` | The VM is booted                                       |
+| Add disk device to the VM          | `/vm.add-disk`          | `/schemas/DiskConfig`           | `/schemas/PciDeviceInfo` | The VM is booted                                       |
+| Add fs device to the VM            | `/vm.add-fs`            | `/schemas/FsConfig`             | `/schemas/PciDeviceInfo` | The VM is booted                                       |
+| Add pmem device to the VM          | `/vm.add-pmem`          | `/schemas/PmemConfig`           | `/schemas/PciDeviceInfo` | The VM is booted                                       |
+| Add network device to the VM       | `/vm.add-net`           | `/schemas/NetConfig`            | `/schemas/PciDeviceInfo` | The VM is booted                                       |
+| Add userspace PCI device to the VM | `/vm.add-user-device`   | `/schemas/VmAddUserDevice`      | `/schemas/PciDeviceInfo` | The VM is booted                                       |
+| Add vdpa device to the VM          | `/vm.add-vdpa`          | `/schemas/VdpaConfig`           | `/schemas/PciDeviceInfo` | The VM is booted                                       |
+| Add vsock device to the VM         | `/vm.add-vsock`         | `/schemas/VsockConfig`          | `/schemas/PciDeviceInfo` | The VM is booted                                       |
+| Remove device from the VM          | `/vm.remove-device`     | `/schemas/VmRemoveDevice`       | N/A                      | The VM is booted                                       |
+| Dump the VM counters               | `/vm.counters`          | N/A                             | `/schemas/VmCounters`    | The VM is booted                                       |
+| Prepare to receive a migration     | `/vm.receive-migration` | `/schemas/ReceiveMigrationData` | N/A                      | N/A                                                    |
+| Start to send migration to target  | `/vm.send-migration`    | `/schemas/SendMigrationData`    | N/A                      | The VM is booted and (shared mem or hugepages enabled) |
 
-### REST API Examples
+* The `vmcoredump` action is available exclusively for the `x86_64`
+architecture and can be executed only when the `guest_debug` feature is
+enabled. Without this feature, the corresponding [REST API](#rest-api) or
+[D-Bus API](#d-bus-api) endpoints are not available.
+
+#### REST API Examples
 
 For the following set of examples, we assume Cloud Hypervisor is started with
 the REST API available at `/tmp/cloud-hypervisor.sock`:
@@ -122,7 +134,7 @@ Cloud Hypervisor Guest
     Disk(s): None
 ```
 
-#### Create a Virtual Machine
+##### Create a Virtual Machine
 
 We want to create a virtual machine with the following characteristics:
 
@@ -150,7 +162,7 @@ curl --unix-socket /tmp/cloud-hypervisor.sock -i \
          }'
 ```
 
-#### Boot a Virtual Machine
+##### Boot a Virtual Machine
 
 Once the VM is created, we can boot it:
 
@@ -160,7 +172,7 @@ Once the VM is created, we can boot it:
 curl --unix-socket /tmp/cloud-hypervisor.sock -i -X PUT 'http://localhost/api/v1/vm.boot'
 ```
 
-#### Dump a Virtual Machine Information
+##### Dump a Virtual Machine Information
 
 We can fetch information about any VM, as soon as it's created:
 
@@ -172,7 +184,7 @@ curl --unix-socket /tmp/cloud-hypervisor.sock -i \
      -H 'Accept: application/json'
 ```
 
-#### Reboot a Virtual Machine
+##### Reboot a Virtual Machine
 
 We can reboot a VM that's already booted:
 
@@ -182,7 +194,7 @@ We can reboot a VM that's already booted:
 curl --unix-socket /tmp/cloud-hypervisor.sock -i -X PUT 'http://localhost/api/v1/vm.reboot'
 ```
 
-#### Shut a Virtual Machine Down
+##### Shut a Virtual Machine Down
 
 Once booted, we can shut a VM down from the REST API:
 
@@ -192,6 +204,50 @@ Once booted, we can shut a VM down from the REST API:
 curl --unix-socket /tmp/cloud-hypervisor.sock -i -X PUT 'http://localhost/api/v1/vm.shutdown'
 ```
 
+### D-Bus API
+
+Cloud Hypervisor offers a D-Bus API as an alternative to its REST API. As of
+writing this document, the D-Bus API mirrors the functionality of the REST
+API and shares the same set of endpoints, meaning that it supports every call
+that is supported by the REST API and can be a drop-in replacement since it
+also consumes/produces JSON.
+
+#### D-Bus API Location and availability
+
+This feature is not compiled into Cloud Hypervisor by default. Users who
+wish to use the D-Bus API, must explicitly enable it with the `dbus_api`
+feature flag when compiling Cloud Hypervisor.
+
+```sh
+$ ./scripts/dev_cli.sh build --release --libc musl -- --features dbus_api
+```
+
+Once this feature is enabled, it can be configured with the following
+CLI options:
+
+```
+  --dbus-service-name
+                    well known name of the service
+  --dbus-object-path
+                    object path to serve the dbus interface
+  --dbus-system-bus use the system bus instead of a session bus
+```
+
+Example invocation:
+
+```sh
+$ ./cloud-hypervisor --dbus-service-name "org.cloudhypervisor.DBusApi" \
+                     --dbus-object-path "/org/cloudhypervisor/DBusApi"
+```
+
+This will start serving a service with the name `org.cloudhypervisor.DBusApi1`
+which in turn can be used to control and manage Cloud Hypervisor.
+
+#### D-Bus API Interface
+
+Please refer to the [REST API](#rest-api) documentation. As previously
+mentioned, the D-Bus API currently mirrors the behaviour of the REST API.
+
 ### Command Line Interface
 
 The Cloud Hypervisor Command Line Interface (CLI) can only be used for launching
@@ -199,33 +255,41 @@ the Cloud Hypervisor binary, i.e. it can not be used for controlling the VMM or
 the launched VM once they're up and running.
 
 If you want to inspect the VMM, or control the VM after launching Cloud
-Hypervisor from the CLI, you must use the [REST API](#rest-api).
+Hypervisor from the CLI, you must use either the [REST API](#rest-api)
+or the [D-Bus API](#d-bus-api).
 
-From the CLI, one can either:
+From the CLI, one can:
 
 1. Create and boot a complete virtual machine by using the CLI options to build
    the VM config. Run `cloud-hypervisor --help` for a complete list of CLI
-   options. As soon as the `cloud-hypervisor` binary is launched, the
-   [REST API](#rest-api) is available for controlling and managing the VM.
-1. Start the [REST API](#rest-api) server only, by not passing any VM
-   configuration options. The VM can then be asynchronously created and booted
-   by sending HTTP commands to the [REST API](#rest-api). Check the
-   [REST API examples](#rest-api-examples) section for more details.
+   options. As soon as the `cloud-hypervisor` binary is launched, contrary
+   to the [D-Bus API](#d-bus-api), the [REST API](#rest-api) is available
+   for controlling and managing the VM. The [D-Bus API](#d-bus-api) doesn't start
+   automatically and needs to be explicitly configured in order to be run.
+1. Start either the REST API, D-Bus API or both simultaneously without passing
+   any VM configuration options. The VM can then be asynchronously created and
+   booted by calling API methods of choice. It should be noted that one external
+   API does not exclude another; it is possible to have both the REST and D-Bus
+   APIs running simultaneously.
 
-### REST API and CLI Architectural Relationship
+### REST API, D-Bus API and CLI Architectural Relationship
 
-The REST API and the CLI both rely on a common, [internal API](#internal-api).
+The REST API, D-Bus API and the CLI all rely on a common, [internal API](#internal-api).
 
 The CLI options are parsed by the
 [argh crate](https://docs.rs/argh/latest/argh/) and then translated into
 [internal API](#internal-api) commands.
 
 The REST API is processed by an HTTP thread using the
-[Firecracker's `micro_http`](https://github.com/firecracker-microvm/firecracker/tree/master/src/micro_http)
+[Firecracker's `micro_http`](https://github.com/firecracker-microvm/micro-http)
 crate. As with the CLI, the HTTP requests eventually get translated into
 [internal API](#internal-api) commands.
 
-As a summary, the REST API and the CLI are essentially frontends for the
+The D-Bus API is implemented using the [zbus](https://github.com/dbus2/zbus)
+crate and runs in its own thread. Whenever it needs to call the [internal API](#internal-api),
+the [blocking](https://github.com/smol-rs/blocking) crate is used perform the call in zbus' async context.
+
+As a summary, the REST API, the D-Bus API and the CLI are essentially frontends for the
 [internal API](#internal-api):
 
 ```
@@ -236,11 +300,11 @@ As a summary, the REST API and the CLI are essentially frontends for the
                        |          +------------------+        |
                        |                                      |      +------------------------+
                        |                                      |      |                        |
-+------------+         |                                      |      |                        |
-|            |         |                                      |      | +--------------+       |
-|    User    +---------+                                      +------> | Internal API |       |
-|            |         |                                      |      | +--------------+       |
-+------------+         |                                      |      |                        |
++------------+         |            +----------+              |      |                        |
+|            |         |  D-Bus API |          |              |      | +--------------+       |
+|    User    +---------+----------->+   zbus   +--------------+------> | Internal API |       |
+|            |         |            |          |              |      | +--------------+       |
++------------+         |            +----------+              |      |                        |
                        |                                      |      |                        |
                        |                                      |      +------------------------+
                        |            +----------+              |                 VMM
@@ -255,22 +319,23 @@ As a summary, the REST API and the CLI are essentially frontends for the
 ## Internal API
 
 The Cloud Hypervisor internal API, as its name suggests, is used internally
-by the different Cloud Hypervisor threads (VMM, HTTP, control loop, etc) to
-send commands and responses to each others.
+by the different Cloud Hypervisor threads (VMM, HTTP, D-Bus, control loop,
+etc) to send commands and responses to each others.
 
 It is based on [rust's Multi-Producer, Single-Consumer (MPSC)](https://doc.rust-lang.org/std/sync/mpsc/),
 and the single consumer (a.k.a. the API receiver) is the Cloud Hypervisor
 control loop.
 
-API producers are the HTTP thread handling the [REST API](#rest-api) and the
-main thread that initially parses the [CLI](#command-line-interface).
+API producers are the HTTP thread handling the [REST API](#rest-api), the
+D-Bus thread handling the [D-Bus API](#d-bus-api) and the main thread that
+initially parses the [CLI](#command-line-interface).
 
 ### Goals and Design
 
 The internal API is designed for controlling, managing and inspecting a Cloud
 Hypervisor VMM and its guest. It is a backend for handling external, user
-visible requests through either the [REST API](#rest-api) or the
-[CLI](#command-line-interface) interfaces.
+visible requests through the [REST API](#rest-api), the [D-Bus API](#d-bus-api)
+or the [CLI](#command-line-interface) interfaces.
 
 The API follows a command-response scheme that closely maps the [REST API](#rest-api).
 Any command must be replied to with a response.
@@ -379,5 +444,5 @@ APIs work together, let's look at a complete VM creation flow, from the
    ```
 1. The Cloud Hypervisor HTTP thread sends the formed HTTP response back to the
    user. This is abstracted by the
-   [micro_http](https://github.com/firecracker-microvm/firecracker/tree/master/src/micro_http)
+   [micro_http](https://github.com/firecracker-microvm/micro-http)
    crate.

docs/custom-image.md

@@ -225,7 +225,7 @@ Number  Start   End     Size    File system  Name  Flags
 
 ### Create a macvtap interface
 
-Rely on the following [documentation](docs/macvtap-bridge.md) to set up a
+Rely on the following [documentation](macvtap-bridge.md) to set up a
 macvtap interface to provide your VM with proper connectivity.
 
 ### Boot the image

docs/memory.md

@@ -266,11 +266,8 @@ _Example_
 
 ### `file`
 
-Path to the file backing the memory zone. This can be either a file or a
-directory. In case of a file, it will be opened and used as the backing file
-for the `mmap(2)` operation. In case of a directory, a temporary file with no
-hard link on the filesystem will be created. This file will be used as the
-backing file for the `mmap(2)` operation.
+Path to the file backing the memory zone. The file will be opened and used as
+the backing file for the `mmap(2)` operation.
 
 This option can be particularly useful when trying to back a part of the guest
 RAM with a well known file. In the context of the snapshot/restore feature, and

event_monitor/Cargo.toml

@@ -6,5 +6,5 @@ edition = "2021"
 
 [dependencies]
 libc = "0.2.139"
-serde = { version = "1.0.151", features = ["rc", "derive"] }
-serde_json = "1.0.93"
+serde = { version = "1.0.164", features = ["rc", "derive"] }
+serde_json = "1.0.96"

fuzz/Cargo.lock

@@ -5,16 +5,16 @@ version = 3
 [[package]]
 name = "acpi_tables"
 version = "0.1.0"
-source = "git+https://github.com/rust-vmm/acpi_tables?branch=main#4fd38dd5f746730ec5ae848dafcf8c2f50a13fc3"
+source = "git+https://github.com/rust-vmm/acpi_tables?branch=main#05a609136387cc1cc9b499cee4320020325c263f"
 dependencies = [
- "vm-memory",
+ "zerocopy",
 ]
 
 [[package]]
 name = "anyhow"
-version = "1.0.69"
+version = "1.0.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "224afbd727c3d6e4b90103ece64b8d1b67fbb1973b1046c2281eed3f3803f800"
+checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8"
 
 [[package]]
 name = "api_client"
@@ -25,9 +25,9 @@ dependencies = [
 
 [[package]]
 name = "arbitrary"
-version = "1.2.3"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e90af4de65aa7b293ef2d09daff88501eb254f58edde2e1ac02c82d873eadad"
+checksum = "e2d098ff73c1ca148721f37baad5ea6a465a13f9573aba8641fbbbae8164a54e"
 
 [[package]]
 name = "arc-swap"
@@ -76,7 +76,7 @@ dependencies = [
  "argh_shared",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -100,6 +100,12 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bitflags"
+version = "2.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6dbe3c979c178231552ecba20214a8272df4e09f232a87aef4320cf06539aded"
+
 [[package]]
 name = "block_util"
 version = "0.1.0"
@@ -113,7 +119,7 @@ dependencies = [
  "versionize",
  "versionize_derive",
  "vhdx",
- "virtio-bindings 0.2.0",
+ "virtio-bindings",
  "virtio-queue",
  "vm-memory",
  "vm-virtio",
@@ -143,7 +149,7 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "cloud-hypervisor"
-version = "29.0.0"
+version = "32.0.0"
 dependencies = [
  "anyhow",
  "api_client",
@@ -208,9 +214,9 @@ checksum = "55626594feae15d266d52440b26ff77de0e22230cf0c113abe619084c1ddc910"
 
 [[package]]
 name = "darling"
-version = "0.14.3"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0808e1bd8671fb44a113a14e13497557533369847788fa2ae912b6ebfce9fa8"
+checksum = "0558d22a7b463ed0241e993f76f09f30b126687447751a8638587b864e4b3944"
 dependencies = [
  "darling_core",
  "darling_macro",
@@ -218,27 +224,27 @@ dependencies = [
 
 [[package]]
 name = "darling_core"
-version = "0.14.3"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "001d80444f28e193f30c2f293455da62dcf9a6b29918a4253152ae2b1de592cb"
+checksum = "ab8bfa2e259f8ee1ce5e97824a3c55ec4404a0d772ca7fa96bf19f0752a046eb"
 dependencies = [
  "fnv",
  "ident_case",
  "proc-macro2",
  "quote",
  "strsim",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
 name = "darling_macro"
-version = "0.14.3"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b36230598a2d5de7ec1c6f51f72d8a99a9208daff41de2084d06e3fd3ea56685"
+checksum = "29a358ff9f12ec09c3e61fef9b5a9902623a695a46a917b07f269bff1445611a"
 dependencies = [
  "darling_core",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -248,7 +254,7 @@ dependencies = [
  "acpi_tables",
  "anyhow",
  "arch",
- "bitflags",
+ "bitflags 2.3.2",
  "byteorder",
  "hypervisor",
  "libc",
@@ -269,7 +275,7 @@ version = "4.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "20df693c700404f7e19d4d6fae6b15215d2913c27955d2b9d6f2c0f537511cd0"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "libc",
 ]
 
@@ -296,9 +302,9 @@ checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
 [[package]]
 name = "getrandom"
-version = "0.2.8"
+version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
+checksum = "be4136b2a15dd319360be1c07d9933517ccf0be8f16bf62a3bee4f0d618df427"
 dependencies = [
  "cfg-if",
  "libc",
@@ -326,9 +332,9 @@ dependencies = [
 
 [[package]]
 name = "iced-x86"
-version = "1.18.0"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1dd04b950d75b3498320253b17fb92745b2cc79ead8814aede2f7c1bab858bec"
+checksum = "b7cc8d38244d84278262c8ebe6930cc44283d194cbabae2651f6112103802fb5"
 dependencies = [
  "lazy_static",
 ]
@@ -345,21 +351,21 @@ version = "0.5.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd1e1a01cfb924fd8c5c43b6827965db394f5a3a16c599ce03452266e1cf984c"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "libc",
 ]
 
 [[package]]
 name = "itoa"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fad582f4b9e86b6caa621cabeb0963332d92eea04729ab12892c2533951e6440"
+checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
 
 [[package]]
 name = "jobserver"
-version = "0.1.25"
+version = "0.1.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "068b1ee6743e4d11fb9c6a1e6064b3693a1b600e7f5f5988047d98b3dc9fb90b"
+checksum = "936cfd212a0155903bcbc060e316fb6cc7cbf2e1907329391ebadc1fe0ce77c2"
 dependencies = [
  "libc",
 ]
@@ -393,9 +399,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.139"
+version = "0.2.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
+checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3"
 
 [[package]]
 name = "libfuzzer-sys"
@@ -410,21 +416,18 @@ dependencies = [
 
 [[package]]
 name = "linux-loader"
-version = "0.8.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9259ddbfbb52cc918f6bbc60390004ddd0228cf1d85f402009ff2b3d95de83f"
+checksum = "8d3adb7b28e189741eca3b1a4a27de0bf15e0907c9d4b0c74bd2d7d84ef72e08"
 dependencies = [
  "vm-memory",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.17"
+version = "0.4.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
-dependencies = [
- "cfg-if",
-]
+checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
 
 [[package]]
 name = "micro_http"
@@ -456,7 +459,7 @@ dependencies = [
  "thiserror",
  "versionize",
  "versionize_derive",
- "virtio-bindings 0.2.0",
+ "virtio-bindings",
  "virtio-queue",
  "vm-memory",
  "vm-virtio",
@@ -465,9 +468,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.17.1"
+version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
+checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
 [[package]]
 name = "option_parser"
@@ -498,9 +501,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.51"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d727cae5b39d21da60fa540906919ad737832fe0b1c165da3a34d6548c849d6"
+checksum = "7b368fba921b0dce7e60f5e04ec15e565b3303972b42bcfde1d0713b881959eb"
 dependencies = [
  "unicode-ident",
 ]
@@ -518,9 +521,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.23"
+version = "1.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
+checksum = "1b9ab9c7eadfd8df19006f1cf1a4aed13540ed5cbc047010ece5826e10825488"
 dependencies = [
  "proc-macro2",
 ]
@@ -536,13 +539,13 @@ dependencies = [
 
 [[package]]
 name = "remain"
-version = "0.2.6"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5704e2cda92fd54202f05430725317ba0ea7d0c96b246ca0a92e45177127ba3b"
+checksum = "e13cca257d068dd3a390d04b2c3009a3fad2ee5048dfa8f239d048372810470c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -556,9 +559,9 @@ dependencies = [
 
 [[package]]
 name = "ryu"
-version = "1.0.12"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b4b9743ed687d4b4bcedf9ff5eaa7398495ae14e61cba0a295704edbc7decde"
+checksum = "f91339c0467de62360649f8d3e185ca8de4224ff281f66000de5eb2a77a79041"
 
 [[package]]
 name = "seccompiler"
@@ -571,35 +574,35 @@ dependencies = [
 
 [[package]]
 name = "semver"
-version = "1.0.16"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58bc9567378fc7690d6b2addae4e60ac2eeea07becb2c64b9f218b53865cba2a"
+checksum = "bebd363326d05ec3e2f532ab7660680f3b02130d780c299bca73469d521bc0ed"
 
 [[package]]
 name = "serde"
-version = "1.0.152"
+version = "1.0.164"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb7d1f0d3021d347a83e556fc4683dea2ea09d87bccdf88ff5c12545d89d5efb"
+checksum = "9e8c8cf938e98f769bc164923b06dce91cea1751522f46f8466461af04c9027d"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.152"
+version = "1.0.164"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"
+checksum = "d9735b638ccc51c28bf6914d90a2e9725b377144fc612c49a611fddd1b631d68"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.93"
+version = "1.0.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cad406b69c91885b5107daf2c29572f6c8cdb3c66826821e286c533490c0bc76"
+checksum = "46266871c240a00b8f503b877622fe33430b3c7d963bdc0f2adc511e54a1eae3"
 dependencies = [
  "itoa",
  "ryu",
@@ -608,9 +611,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "2.2.0"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30d904179146de381af4c93d3af6ca4984b3152db687dacb9c3c35e86f39809c"
+checksum = "9f02d8aa6e3c385bf084924f660ce2a3a6bd333ba55b35e8590b321f35d88513"
 dependencies = [
  "serde",
  "serde_with_macros",
@@ -618,14 +621,14 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "2.2.0"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1966009f3c05f095697c537312f5415d1e3ed31ce0a56942bac4c771c5c335e"
+checksum = "edc7d5d3932fb12ce722ee5e64dd38c504efba37567f0c402f6ca728c3b8b070"
 dependencies = [
  "darling",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -665,9 +668,20 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "syn"
-version = "1.0.108"
+version = "1.0.109"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d56e159d99e6c2b93995d171050271edb50ecc5288fbc7cc17de8fdce4e58c14"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a34fcf3e8b60f57e6a14301a2e916d323af98b0ea63c599441eec8558660c822"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -676,22 +690,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.38"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a9cd18aa97d5c45c6603caea1da6628790b37f7a34b6ca89522331c5180fed0"
+checksum = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.38"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fb327af4685e4d03fa8cbcf1716380da910eeb2bb8be417e7f9fd3fb164f36f"
+checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -720,24 +734,24 @@ dependencies = [
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.6"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"
+checksum = "b15811caf2415fb889178633e7724bad2509101cde276048e013b9def5e51fa0"
 
 [[package]]
 name = "uuid"
-version = "1.3.0"
+version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1674845326ee10d37ca60470760d4288a6f80f304007d92e5c53bab78c9cfd79"
+checksum = "0fa2982af2eec27de306107c027578ff7f423d65f7250e40ce0fea8f45248b81"
 dependencies = [
  "getrandom",
 ]
 
 [[package]]
 name = "versionize"
-version = "0.1.9"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6e2495726cf917e7ba7ec8bf0f0fceab543dd38d0a4195ed6bef331e38a290f"
+checksum = "dca4b7062e7e6d685901e815c35f9671e059de97c1c0905eeff8592f3fff442f"
 dependencies = [
  "bincode",
  "crc64",
@@ -745,7 +759,7 @@ dependencies = [
  "quote",
  "serde",
  "serde_derive",
- "syn",
+ "syn 1.0.109",
  "versionize_derive",
  "vmm-sys-util",
 ]
@@ -753,17 +767,17 @@ dependencies = [
 [[package]]
 name = "versionize_derive"
 version = "0.1.4"
-source = "git+https://github.com/cloud-hypervisor/versionize_derive?branch=ch#ae35ef7a3ddabd3371ab8ac0193a383aff6e4b1b"
+source = "git+https://github.com/cloud-hypervisor/versionize_derive?branch=ch#e502b1d4aabab342386f0c53780d49f21a6a1df6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
 name = "vfio-bindings"
 version = "0.4.0"
-source = "git+https://github.com/rust-vmm/vfio?branch=main#43439e056ddfa84a4f7906ee7f2f58be70505c08"
+source = "git+https://github.com/rust-vmm/vfio?branch=main#89f8e77dd1a2829197ecde65b686bafcc8a1def4"
 dependencies = [
  "vmm-sys-util",
 ]
@@ -771,7 +785,7 @@ dependencies = [
 [[package]]
 name = "vfio-ioctls"
 version = "0.2.0"
-source = "git+https://github.com/rust-vmm/vfio?branch=main#43439e056ddfa84a4f7906ee7f2f58be70505c08"
+source = "git+https://github.com/rust-vmm/vfio?branch=main#89f8e77dd1a2829197ecde65b686bafcc8a1def4"
 dependencies = [
  "byteorder",
  "kvm-bindings",
@@ -787,9 +801,9 @@ dependencies = [
 [[package]]
 name = "vfio_user"
 version = "0.1.0"
-source = "git+https://github.com/rust-vmm/vfio-user?branch=main#afbbd5722885e961ce12baea12efe01d52ce14b0"
+source = "git+https://github.com/rust-vmm/vfio-user?branch=main#eef6bec4d421f08ed1688fe67c5ea33aabbf5069"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "libc",
  "log",
  "serde",
@@ -816,22 +830,16 @@ dependencies = [
 
 [[package]]
 name = "vhost"
-version = "0.6.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9b791c5b0717a0558888a4cf7240cea836f39a99cb342e12ce633dcaa078072"
+checksum = "84f81f436bca4541f4d33172e1202882c9d437db34ed17fc6d84c8ff2bde21f5"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "libc",
  "vm-memory",
  "vmm-sys-util",
 ]
 
-[[package]]
-name = "virtio-bindings"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ff512178285488516ed85f15b5d0113a7cdb89e9e8a760b269ae4f02b84bd6b"
-
 [[package]]
 name = "virtio-bindings"
 version = "0.2.0"
@@ -863,7 +871,7 @@ dependencies = [
  "versionize",
  "versionize_derive",
  "vhost",
- "virtio-bindings 0.2.0",
+ "virtio-bindings",
  "virtio-queue",
  "vm-allocator",
  "vm-device",
@@ -875,12 +883,12 @@ dependencies = [
 
 [[package]]
 name = "virtio-queue"
-version = "0.7.1"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ba81e2bcc21c0d2fc5e6683e79367e26ad219197423a498df801d79d5ba77bd"
+checksum = "91aebb1df33db33cbf04d4c2445e4f78d0b0c8e65acfd16a4ee95ef63ca252f8"
 dependencies = [
  "log",
- "virtio-bindings 0.1.0",
+ "virtio-bindings",
  "vm-memory",
  "vmm-sys-util",
 ]
@@ -914,9 +922,9 @@ source = "git+https://github.com/rust-vmm/vm-fdt?branch=main#c5a99ab71b130435927
 
 [[package]]
 name = "vm-memory"
-version = "0.10.0"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "688a70366615b45575a424d9c665561c1b5ab2224d494f706b6a6812911a827c"
+checksum = "9d6ea57fe00f9086c59eeeb68e102dd611686bc3c28520fa465996d4d4bdce07"
 dependencies = [
  "arc-swap",
  "libc",
@@ -953,7 +961,7 @@ dependencies = [
  "anyhow",
  "arc-swap",
  "arch",
- "bitflags",
+ "bitflags 2.3.2",
  "block_util",
  "devices",
  "epoll",
@@ -989,6 +997,7 @@ dependencies = [
  "vm-migration",
  "vm-virtio",
  "vmm-sys-util",
+ "zerocopy",
 ]
 
 [[package]]
@@ -997,7 +1006,7 @@ version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd64fe09d8e880e600c324e7d664760a17f56e9672b7495a86381b49e4f72f46"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "libc",
  "serde",
  "serde_derive",
@@ -1030,3 +1039,24 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "zerocopy"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "332f188cc1bcf1fe1064b8c58d150f497e697f49774aa846f2dc949d9a25f236"
+dependencies = [
+ "byteorder",
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6505e6815af7de1746a08f69c69606bb45695a17149517680f3b2149713b19a3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]

fuzz/Cargo.toml

@@ -12,20 +12,20 @@ cargo-fuzz = true
 block_util = { path = "../block_util" }
 devices = { path = "../devices" }
 epoll = "4.3.1"
-libc = "0.2.138"
+libc = "0.2.147"
 libfuzzer-sys = "0.4.6"
-linux-loader = { version = "0.8.1", features = ["elf", "bzimage", "pe"] }
+linux-loader = { version = "0.9.0", features = ["elf", "bzimage", "pe"] }
 micro_http = { git = "https://github.com/firecracker-microvm/micro-http", branch = "main" }
 net_util = { path = "../net_util" }
-once_cell = "1.17.1"
+once_cell = "1.18.0"
 qcow = { path = "../qcow" }
 seccompiler = "0.3.0"
 vhdx = { path = "../vhdx" }
 virtio-devices = { path = "../virtio-devices" }
-virtio-queue = "0.7.1"
+virtio-queue = "0.8.0"
 vmm = { path = "../vmm" }
 vmm-sys-util = "0.11.1"
-vm-memory = "0.10.0"
+vm-memory = "0.11.0"
 vm-device = { path = "../vm-device" }
 vm-virtio = { path = "../vm-virtio" }
 

hypervisor/Cargo.toml

@@ -6,28 +6,28 @@ edition = "2021"
 license = "Apache-2.0 OR BSD-3-Clause"
 
 [features]
-kvm = ["kvm-ioctls", "kvm-bindings"]
-mshv = ["mshv-ioctls", "mshv-bindings"]
+kvm = ["kvm-ioctls", "kvm-bindings", "vfio-ioctls/kvm"]
+mshv = ["mshv-ioctls", "mshv-bindings", "vfio-ioctls/mshv"]
 tdx = []
 
 [dependencies]
-anyhow = "1.0.69"
+anyhow = "1.0.71"
 byteorder = "1.4.3"
-thiserror = "1.0.38"
+thiserror = "1.0.40"
 libc = "0.2.139"
 log = "0.4.17"
 kvm-ioctls = { version = "0.13.0", optional = true }
 kvm-bindings = { git = "https://github.com/cloud-hypervisor/kvm-bindings", branch = "ch-v0.6.0-tdx", features = ["with-serde", "fam-wrappers"], optional  = true }
 mshv-bindings = { git = "https://github.com/rust-vmm/mshv", branch = "main", features = ["with-serde", "fam-wrappers"], optional  = true }
 mshv-ioctls = { git = "https://github.com/rust-vmm/mshv", branch = "main", optional  = true}
-serde = { version = "1.0.151", features = ["rc", "derive"] }
-serde_with = { version = "2.1.0", default-features = false, features = ["macros"] }
+serde = { version = "1.0.164", features = ["rc", "derive"] }
+serde_with = { version = "3.0.0", default-features = false, features = ["macros"] }
 vfio-ioctls = { git = "https://github.com/rust-vmm/vfio", branch = "main", default-features = false }
-vm-memory = { version = "0.10.0", features = ["backend-mmap", "backend-atomic"] }
+vm-memory = { version = "0.11.0", features = ["backend-mmap", "backend-atomic"] }
 vmm-sys-util = { version = "0.11.0", features = ["with-serde"] }
 
 [target.'cfg(target_arch = "x86_64")'.dependencies.iced-x86]
-version = "1.18.0"
+version = "1.19.0"
 default-features = false
 features = ["std", "decoder", "op_code_info", "instr_info", "fast_fmt"]
 

hypervisor/src/arch/x86/mod.rs

@@ -26,7 +26,6 @@ pub const MTRR_MEM_TYPE_WB: u64 = 0x6;
 pub const NUM_IOAPIC_PINS: usize = 24;
 
 // X86 Exceptions
-#[allow(clippy::upper_case_acronyms)]
 #[derive(Clone, Debug)]
 pub enum Exception {
     DE = 0,  // Divide Error

hypervisor/src/cpu.rs

@@ -21,6 +21,15 @@ use crate::MpState;
 use thiserror::Error;
 use vm_memory::GuestAddress;
 
+#[cfg(target_arch = "x86_64")]
+#[derive(Copy, Clone, Default)]
+pub enum CpuVendor {
+    #[default]
+    Unknown,
+    Intel,
+    AMD,
+}
+
 #[derive(Error, Debug)]
 ///
 /// Enum for CPU error

hypervisor/src/hypervisor.rs

@@ -9,10 +9,14 @@
 //
 #[cfg(target_arch = "x86_64")]
 use crate::arch::x86::CpuIdEntry;
+#[cfg(target_arch = "x86_64")]
+use crate::cpu::CpuVendor;
 #[cfg(feature = "tdx")]
 use crate::kvm::TdxCapabilities;
 use crate::vm::Vm;
 use crate::HypervisorType;
+#[cfg(target_arch = "x86_64")]
+use std::arch::x86_64;
 use std::sync::Arc;
 use thiserror::Error;
 
@@ -75,6 +79,11 @@ pub enum HypervisorError {
     ///
     #[error("Failed to set partition property:{0}")]
     SetPartitionProperty(#[source] anyhow::Error),
+    ///
+    /// Running on an unsupported CPU
+    ///
+    #[error("Unsupported CPU:{0}")]
+    UnsupportedCpu(#[source] anyhow::Error),
 }
 
 ///
@@ -133,4 +142,30 @@ pub trait Hypervisor: Send + Sync {
     fn get_guest_debug_hw_bps(&self) -> usize {
         unimplemented!()
     }
+
+    /// Get maximum number of vCPUs
+    fn get_max_vcpus(&self) -> u32;
+    #[cfg(target_arch = "x86_64")]
+    ///
+    /// Determine CPU vendor
+    ///
+    fn get_cpu_vendor(&self) -> CpuVendor {
+        // SAFETY: call cpuid with valid leaves
+        unsafe {
+            let leaf = x86_64::__cpuid(0x0);
+
+            if leaf.ebx == 0x756e_6547 && leaf.ecx == 0x6c65_746e && leaf.edx == 0x4965_6e69 {
+                // Vendor string GenuineIntel
+                CpuVendor::Intel
+            } else if leaf.ebx == 0x6874_7541 && leaf.ecx == 0x444d_4163 && leaf.edx == 0x6974_6e65
+            {
+                // Vendor string AuthenticAMD
+                CpuVendor::AMD
+            } else {
+                // Not known yet, the corresponding manufacturer manual should contain the
+                // necesssary info. See also https://wiki.osdev.org/CPUID#CPU_Vendor_ID_String
+                CpuVendor::default()
+            }
+        }
+    }
 }

hypervisor/src/kvm/aarch64/gic/mod.rs

@@ -243,7 +243,6 @@ impl KvmGicV3Its {
     }
 
     /// Method to initialize the GIC device
-    #[allow(clippy::new_ret_no_self)]
     pub fn new(vm: &dyn Vm, config: VgicConfig) -> Result<KvmGicV3Its> {
         // This is inside KVM module
         let vm = vm.as_any().downcast_ref::<KvmVm>().expect("Wrong VM type?");

hypervisor/src/kvm/mod.rs

@@ -335,16 +335,17 @@ impl KvmVm {
     }
 }
 
-///
 /// Implementation of Vm trait for KVM
-/// Example:
-/// #[cfg(feature = "kvm")]
-/// extern crate hypervisor
-/// let kvm = hypervisor::kvm::KvmHypervisor::new().unwrap();
-/// let hypervisor: Arc<dyn hypervisor::Hypervisor> = Arc::new(kvm);
-/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
-/// vm.set/get().unwrap()
 ///
+/// # Examples
+///
+/// ```
+/// # use hypervisor::kvm::KvmHypervisor;
+/// # use std::sync::Arc;
+/// let kvm = KvmHypervisor::new().unwrap();
+/// let hypervisor = Arc::new(kvm);
+/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
+/// ```
 impl vm::Vm for KvmVm {
     #[cfg(target_arch = "x86_64")]
     ///
@@ -917,13 +918,16 @@ impl KvmHypervisor {
     }
 }
 /// Implementation of Hypervisor trait for KVM
-/// Example:
-/// #[cfg(feature = "kvm")]
-/// extern crate hypervisor
-/// let kvm = hypervisor::kvm::KvmHypervisor::new().unwrap();
-/// let hypervisor: Arc<dyn hypervisor::Hypervisor> = Arc::new(kvm);
-/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
 ///
+/// # Examples
+///
+/// ```
+/// # use hypervisor::kvm::KvmHypervisor;
+/// # use std::sync::Arc;
+/// let kvm = KvmHypervisor::new().unwrap();
+/// let hypervisor = Arc::new(kvm);
+/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
+/// ```
 impl hypervisor::Hypervisor for KvmHypervisor {
     ///
     /// Returns the type of the hypervisor
@@ -932,13 +936,15 @@ impl hypervisor::Hypervisor for KvmHypervisor {
         HypervisorType::Kvm
     }
     /// Create a KVM vm object of a specific VM type and return the object as Vm trait object
-    /// Example
-    /// # extern crate hypervisor;
-    /// # use hypervisor::KvmHypervisor;
-    /// use hypervisor::KvmVm;
-    /// let hypervisor = KvmHypervisor::new().unwrap();
-    /// let vm = hypervisor.create_vm_with_type(KvmVmType::LegacyVm).unwrap()
     ///
+    /// # Examples
+    ///
+    /// ```
+    /// # use hypervisor::kvm::KvmHypervisor;
+    /// use hypervisor::kvm::KvmVm;
+    /// let hypervisor = KvmHypervisor::new().unwrap();
+    /// let vm = hypervisor.create_vm_with_type(0).unwrap();
+    /// ```
     fn create_vm_with_type(&self, vm_type: u64) -> hypervisor::Result<Arc<dyn vm::Vm>> {
         let fd: VmFd;
         loop {
@@ -992,13 +998,15 @@ impl hypervisor::Hypervisor for KvmHypervisor {
     }
 
     /// Create a KVM vm object and return the object as Vm trait object
-    /// Example
-    /// # extern crate hypervisor;
-    /// # use hypervisor::KvmHypervisor;
-    /// use hypervisor::KvmVm;
-    /// let hypervisor = KvmHypervisor::new().unwrap();
-    /// let vm = hypervisor.create_vm().unwrap()
     ///
+    /// # Examples
+    ///
+    /// ```
+    /// # use hypervisor::kvm::KvmHypervisor;
+    /// use hypervisor::kvm::KvmVm;
+    /// let hypervisor = KvmHypervisor::new().unwrap();
+    /// let vm = hypervisor.create_vm().unwrap();
+    /// ```
     fn create_vm(&self) -> hypervisor::Result<Arc<dyn vm::Vm>> {
         #[allow(unused_mut)]
         let mut vm_type: u64 = 0; // Create with default platform type
@@ -1076,6 +1084,11 @@ impl hypervisor::Hypervisor for KvmHypervisor {
             self.kvm.get_guest_debug_hw_bps() as usize
         }
     }
+
+    /// Get maximum number of vCPUs
+    fn get_max_vcpus(&self) -> u32 {
+        self.kvm.get_max_vcpus().min(u32::MAX as usize) as u32
+    }
 }
 /// Vcpu struct for KVM
 pub struct KvmVcpu {
@@ -1087,15 +1100,17 @@ pub struct KvmVcpu {
     hyperv_synic: AtomicBool,
 }
 /// Implementation of Vcpu trait for KVM
-/// Example:
-/// #[cfg(feature = "kvm")]
-/// extern crate hypervisor
-/// let kvm = hypervisor::kvm::KvmHypervisor::new().unwrap();
-/// let hypervisor: Arc<dyn hypervisor::Hypervisor> = Arc::new(kvm);
+///
+/// # Examples
+///
+/// ```
+/// # use hypervisor::kvm::KvmHypervisor;
+/// # use std::sync::Arc;
+/// let kvm = KvmHypervisor::new().unwrap();
+/// let hypervisor = Arc::new(kvm);
 /// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
 /// let vcpu = vm.create_vcpu(0, None).unwrap();
-/// vcpu.get/set().unwrap()
-///
+/// ```
 impl cpu::Vcpu for KvmVcpu {
     #[cfg(target_arch = "x86_64")]
     ///
@@ -1797,11 +1812,10 @@ impl cpu::Vcpu for KvmVcpu {
     /// # Example
     ///
     /// ```rust
-    /// # extern crate hypervisor;
-    /// # use hypervisor::KvmHypervisor;
+    /// # use hypervisor::kvm::KvmHypervisor;
     /// # use std::sync::Arc;
-    /// let kvm = hypervisor::kvm::KvmHypervisor::new().unwrap();
-    /// let hv: Arc<dyn hypervisor::Hypervisor> = Arc::new(kvm);
+    /// let kvm = KvmHypervisor::new().unwrap();
+    /// let hv = Arc::new(kvm);
     /// let vm = hv.create_vm().expect("new VM fd creation failed");
     /// vm.enable_split_irq().unwrap();
     /// let vcpu = vm.create_vcpu(0, None).unwrap();
@@ -1969,11 +1983,10 @@ impl cpu::Vcpu for KvmVcpu {
     /// # Example
     ///
     /// ```rust
-    /// # extern crate hypervisor;
-    /// # use hypervisor::KvmHypervisor;
+    /// # use hypervisor::kvm::KvmHypervisor;
     /// # use std::sync::Arc;
-    /// let kvm = hypervisor::kvm::KvmHypervisor::new().unwrap();
-    /// let hv: Arc<dyn hypervisor::Hypervisor> = Arc::new(kvm);
+    /// let kvm = KvmHypervisor::new().unwrap();
+    /// let hv = Arc::new(kvm);
     /// let vm = hv.create_vm().expect("new VM fd creation failed");
     /// vm.enable_split_irq().unwrap();
     /// let vcpu = vm.create_vcpu(0, None).unwrap();

hypervisor/src/lib.rs

@@ -48,9 +48,11 @@ mod cpu;
 /// Device related module
 mod device;
 
+pub use crate::hypervisor::{Hypervisor, HypervisorError};
+#[cfg(target_arch = "x86_64")]
+pub use cpu::CpuVendor;
 pub use cpu::{HypervisorCpuError, Vcpu, VmExit};
 pub use device::HypervisorDeviceError;
-pub use hypervisor::{Hypervisor, HypervisorError};
 #[cfg(all(feature = "kvm", target_arch = "aarch64"))]
 pub use kvm::{aarch64, GicState};
 use std::sync::Arc;

hypervisor/src/mshv/mod.rs

@@ -195,13 +195,16 @@ impl MshvHypervisor {
     }
 }
 /// Implementation of Hypervisor trait for Mshv
-/// Example:
-/// #[cfg(feature = "mshv")]
-/// extern crate hypervisor
-/// let mshv = hypervisor::mshv::MshvHypervisor::new().unwrap();
-/// let hypervisor: Arc<dyn hypervisor::Hypervisor> = Arc::new(mshv);
-/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
 ///
+/// # Examples
+///
+/// ```
+/// # use hypervisor::mshv::MshvHypervisor;
+/// # use std::sync::Arc;
+/// let mshv = MshvHypervisor::new().unwrap();
+/// let hypervisor = Arc::new(mshv);
+/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
+/// ```
 impl hypervisor::Hypervisor for MshvHypervisor {
     ///
     /// Returns the type of the hypervisor
@@ -210,13 +213,16 @@ impl hypervisor::Hypervisor for MshvHypervisor {
         HypervisorType::Mshv
     }
     /// Create a mshv vm object and return the object as Vm trait object
-    /// Example
-    /// # extern crate hypervisor;
-    /// # use hypervisor::MshvHypervisor;
-    /// use hypervisor::MshvVm;
-    /// let hypervisor = MshvHypervisor::new().unwrap();
-    /// let vm = hypervisor.create_vm().unwrap()
     ///
+    /// # Examples
+    ///
+    /// ```
+    /// # extern crate hypervisor;
+    /// # use hypervisor::mshv::MshvHypervisor;
+    /// use hypervisor::mshv::MshvVm;
+    /// let hypervisor = MshvHypervisor::new().unwrap();
+    /// let vm = hypervisor.create_vm().unwrap();
+    /// ```
     fn create_vm(&self) -> hypervisor::Result<Arc<dyn vm::Vm>> {
         let fd: VmFd;
         loop {
@@ -273,6 +279,13 @@ impl hypervisor::Hypervisor for MshvHypervisor {
     fn get_supported_cpuid(&self) -> hypervisor::Result<Vec<CpuIdEntry>> {
         Ok(Vec::new())
     }
+
+    /// Get maximum number of vCPUs
+    fn get_max_vcpus(&self) -> u32 {
+        // TODO: Using HV_MAXIMUM_PROCESSORS would be better
+        // but the ioctl API is limited to u8
+        256
+    }
 }
 
 /// Vcpu struct for Microsoft Hypervisor
@@ -285,15 +298,17 @@ pub struct MshvVcpu {
 }
 
 /// Implementation of Vcpu trait for Microsoft Hypervisor
-/// Example:
-/// #[cfg(feature = "mshv")]
-/// extern crate hypervisor
-/// let mshv = hypervisor::mshv::MshvHypervisor::new().unwrap();
-/// let hypervisor: Arc<dyn hypervisor::Hypervisor> = Arc::new(mshv);
-/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
-/// let vcpu = vm.create_vcpu(0).unwrap();
-/// vcpu.get/set().unwrap()
 ///
+/// # Examples
+///
+/// ```
+/// # use hypervisor::mshv::MshvHypervisor;
+/// # use std::sync::Arc;
+/// let mshv = MshvHypervisor::new().unwrap();
+/// let hypervisor = Arc::new(mshv);
+/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
+/// let vcpu = vm.create_vcpu(0, None).unwrap();
+/// ```
 impl cpu::Vcpu for MshvVcpu {
     #[cfg(target_arch = "x86_64")]
     ///
@@ -446,10 +461,10 @@ impl cpu::Vcpu for MshvVcpu {
                             /* Advance RIP and update RAX */
                             let arr_reg_name_value = [
                                 (
-                                    hv_x64_register_name_HV_X64_REGISTER_RIP,
+                                    hv_register_name_HV_X64_REGISTER_RIP,
                                     info.header.rip + insn_len,
                                 ),
-                                (hv_x64_register_name_HV_X64_REGISTER_RAX, ret_rax),
+                                (hv_register_name_HV_X64_REGISTER_RAX, ret_rax),
                             ];
                             set_registers_64!(self.fd, arr_reg_name_value)
                                 .map_err(|e| cpu::HypervisorCpuError::SetRegister(e.into()))?;
@@ -495,10 +510,10 @@ impl cpu::Vcpu for MshvVcpu {
                     /* Advance RIP and update RAX */
                     let arr_reg_name_value = [
                         (
-                            hv_x64_register_name_HV_X64_REGISTER_RIP,
+                            hv_register_name_HV_X64_REGISTER_RIP,
                             info.header.rip + insn_len,
                         ),
-                        (hv_x64_register_name_HV_X64_REGISTER_RAX, ret_rax),
+                        (hv_register_name_HV_X64_REGISTER_RAX, ret_rax),
                     ];
                     set_registers_64!(self.fd, arr_reg_name_value)
                         .map_err(|e| cpu::HypervisorCpuError::SetRegister(e.into()))?;
@@ -568,8 +583,14 @@ impl cpu::Vcpu for MshvVcpu {
     ///
     /// X86 specific call to setup the CPUID registers.
     ///
-    fn set_cpuid2(&self, _cpuid: &[CpuIdEntry]) -> cpu::Result<()> {
-        Ok(())
+    fn set_cpuid2(&self, cpuid: &[CpuIdEntry]) -> cpu::Result<()> {
+        let cpuid: Vec<mshv_bindings::hv_cpuid_entry> = cpuid.iter().map(|e| (*e).into()).collect();
+        let mshv_cpuid = <CpuId>::from_entries(&cpuid)
+            .map_err(|_| cpu::HypervisorCpuError::SetCpuid(anyhow!("failed to create CpuId")))?;
+
+        self.fd
+            .register_intercept_result_cpuid(&mshv_cpuid)
+            .map_err(|e| cpu::HypervisorCpuError::SetCpuid(e.into()))
     }
     #[cfg(target_arch = "x86_64")]
     ///
@@ -917,15 +938,17 @@ impl MshvVm {
 
 ///
 /// Implementation of Vm trait for Mshv
-/// Example:
-/// #[cfg(feature = "mshv")]
-/// # extern crate hypervisor;
-/// # use hypervisor::MshvHypervisor;
-/// let mshv = MshvHypervisor::new().unwrap();
-/// let hypervisor: Arc<dyn hypervisor::Hypervisor> = Arc::new(mshv);
-/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
-/// vm.set/get().unwrap()
 ///
+/// # Examples
+///
+/// ```
+/// # extern crate hypervisor;
+/// # use hypervisor::mshv::MshvHypervisor;
+/// # use std::sync::Arc;
+/// let mshv = MshvHypervisor::new().unwrap();
+/// let hypervisor = Arc::new(mshv);
+/// let vm = hypervisor.create_vm().expect("new VM fd creation failed");
+/// ```
 impl vm::Vm for MshvVm {
     #[cfg(target_arch = "x86_64")]
     ///

net_gen/src/if_tun.rs

@@ -10,6 +10,7 @@
 #[repr(C)]
 #[derive(Default)]
 pub struct __IncompleteArrayField<T>(::std::marker::PhantomData<T>, [T; 0]);
+#[allow(clippy::missing_safety_doc)]
 impl<T> __IncompleteArrayField<T> {
     #[inline]
     pub const fn new() -> Self {

net_gen/src/iff.rs

@@ -10,6 +10,7 @@
 #[repr(C)]
 #[derive(Default)]
 pub struct __IncompleteArrayField<T>(::std::marker::PhantomData<T>, [T; 0]);
+#[allow(clippy::missing_safety_doc)]
 impl<T> __IncompleteArrayField<T> {
     #[inline]
     pub const fn new() -> Self {

net_gen/src/lib.rs

@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the THIRD-PARTY file.
 
-#![allow(clippy::all)]
 #![allow(non_upper_case_globals)]
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]
@@ -28,10 +27,12 @@ pub mod inn;
 // generated with bindgen /usr/include/linux/sockios.h --no-unstable-rust
 // --constified-enum '*' --with-derive-default
 pub mod sockios;
-pub use if_tun::*;
-pub use iff::*;
-pub use inn::*;
-pub use sockios::*;
+pub use if_tun::{
+    sock_fprog, IFF_MULTI_QUEUE, IFF_NO_PI, IFF_TAP, IFF_VNET_HDR, TUN_F_CSUM, TUN_F_TSO4,
+    TUN_F_TSO6, TUN_F_TSO_ECN, TUN_F_UFO,
+};
+pub use iff::{ifreq, net_device_flags_IFF_UP, setsockopt, sockaddr, AF_INET};
+pub use inn::sockaddr_in;
 
 pub const TUNTAP: ::std::os::raw::c_uint = 84;
 

net_util/Cargo.toml

@@ -11,13 +11,13 @@ libc = "0.2.139"
 log = "0.4.17"
 net_gen = { path = "../net_gen" }
 rate_limiter = { path = "../rate_limiter" }
-serde = "1.0.151"
-thiserror = "1.0.38"
-versionize = "0.1.9"
+serde = "1.0.164"
+thiserror = "1.0.40"
+versionize = "0.1.10"
 versionize_derive = "0.1.4"
 virtio-bindings = "0.2.0"
-virtio-queue = "0.7.0"
-vm-memory = { version = "0.10.0", features = ["backend-mmap", "backend-atomic", "backend-bitmap"] }
+virtio-queue = "0.8.0"
+vm-memory = { version = "0.11.0", features = ["backend-mmap", "backend-atomic", "backend-bitmap"] }
 vm-virtio = { path = "../vm-virtio" }
 vmm-sys-util = "0.11.0"
 
@@ -25,4 +25,4 @@ vmm-sys-util = "0.11.0"
 once_cell = "1.17.1"
 pnet = "0.33.0"
 pnet_datalink = "0.33.0"
-serde_json = "1.0.93"
+serde_json = "1.0.96"

pci/Cargo.toml

@@ -10,7 +10,7 @@ kvm = ["vfio-ioctls/kvm"]
 mshv = ["vfio-ioctls/mshv"]
 
 [dependencies]
-anyhow = "1.0.69"
+anyhow = "1.0.71"
 byteorder = "1.4.3"
 hypervisor = { path = "../hypervisor" }
 vfio-bindings = { git = "https://github.com/rust-vmm/vfio", branch = "main", features = ["fam-wrappers"] }
@@ -20,11 +20,11 @@ vfio_user = { git = "https://github.com/rust-vmm/vfio-user", branch = "main" }
 vmm-sys-util = "0.11.0"
 libc = "0.2.139"
 log = "0.4.17"
-serde = { version = "1.0.151", features = ["derive"] }
-thiserror = "1.0.38"
-versionize = "0.1.9"
+serde = { version = "1.0.164", features = ["derive"] }
+thiserror = "1.0.40"
+versionize = "0.1.10"
 versionize_derive = "0.1.4"
 vm-allocator = { path = "../vm-allocator" }
 vm-device = { path = "../vm-device" }
-vm-memory = { version = "0.10.0", features = ["backend-mmap", "backend-atomic", "backend-bitmap"] }
+vm-memory = { version = "0.11.0", features = ["backend-mmap", "backend-atomic", "backend-bitmap"] }
 vm-migration = { path = "../vm-migration" }

pci/src/configuration.rs

@@ -452,10 +452,9 @@ impl From<PciBarType> for PciBarRegionType {
     }
 }
 
-#[allow(clippy::from_over_into)]
-impl Into<PciBarType> for PciBarRegionType {
-    fn into(self) -> PciBarType {
-        match self {
+impl From<PciBarRegionType> for PciBarType {
+    fn from(val: PciBarRegionType) -> Self {
+        match val {
             PciBarRegionType::IoRegion => PciBarType::Io,
             PciBarRegionType::Memory32BitRegion => PciBarType::Mmio32,
             PciBarRegionType::Memory64BitRegion => PciBarType::Mmio64,
@@ -469,10 +468,9 @@ pub enum PciBarPrefetchable {
     Prefetchable = 0x08,
 }
 
-#[allow(clippy::from_over_into)]
-impl Into<bool> for PciBarPrefetchable {
-    fn into(self) -> bool {
-        match self {
+impl From<PciBarPrefetchable> for bool {
+    fn from(val: PciBarPrefetchable) -> Self {
+        match val {
             PciBarPrefetchable::NotPrefetchable => false,
             PciBarPrefetchable::Prefetchable => true,
         }

pci/src/msix.rs

@@ -511,6 +511,16 @@ impl MsixCap {
         self.pba & 0xffff_fff8
     }
 
+    pub fn table_set_offset(&mut self, addr: u32) {
+        self.table &= 0x7;
+        self.table += addr;
+    }
+
+    pub fn pba_set_offset(&mut self, addr: u32) {
+        self.pba &= 0x7;
+        self.pba += addr;
+    }
+
     pub fn table_bir(&self) -> u32 {
         self.table & 0x7
     }

pci/src/vfio.rs

@@ -14,6 +14,7 @@ use crate::{
 use anyhow::anyhow;
 use byteorder::{ByteOrder, LittleEndian};
 use hypervisor::HypervisorVmError;
+use libc::{sysconf, _SC_PAGESIZE};
 use std::any::Any;
 use std::collections::{BTreeMap, HashMap};
 use std::io;
@@ -27,6 +28,9 @@ use vfio_bindings::bindings::vfio::*;
 use vfio_ioctls::{
     VfioContainer, VfioDevice, VfioIrq, VfioRegionInfoCap, VfioRegionSparseMmapArea,
 };
+use vm_allocator::page_size::{
+    align_page_size_down, align_page_size_up, is_4k_aligned, is_4k_multiple, is_page_size_aligned,
+};
 use vm_allocator::{AddressAllocator, SystemAllocator};
 use vm_device::interrupt::{
     InterruptIndex, InterruptManager, InterruptSourceGroup, MsiIrqGroupConfig,
@@ -498,6 +502,29 @@ impl VfioCommon {
         Ok(vfio_common)
     }
 
+    /// In case msix table offset is not page size aligned, we need do some fixup to achive it.
+    /// Becuse we don't want the MMIO RW region and trap region overlap each other.
+    fn fixup_msix_region(&mut self, bar_id: u32, region_size: u64) -> u64 {
+        let msix = self.interrupt.msix.as_mut().unwrap();
+        let msix_cap = &mut msix.cap;
+
+        // Suppose table_bir equals to pba_bir here. Am I right?
+        let (table_offset, table_size) = msix_cap.table_range();
+        if is_page_size_aligned(table_offset) || msix_cap.table_bir() != bar_id {
+            return region_size;
+        }
+
+        let (pba_offset, pba_size) = msix_cap.pba_range();
+        let msix_sz = align_page_size_up(table_size + pba_size);
+        // Expand region to hold RW and trap region which both page size aligned
+        let size = std::cmp::max(region_size * 2, msix_sz * 2);
+        // let table starts from the middle of the region
+        msix_cap.table_set_offset((size / 2) as u32);
+        msix_cap.pba_set_offset((size / 2 + pba_offset - table_offset) as u32);
+
+        size
+    }
+
     pub(crate) fn allocate_bars(
         &mut self,
         allocator: &Arc<Mutex<SystemAllocator>>,
@@ -661,9 +688,16 @@ impl VfioCommon {
                         .ok_or(PciDeviceError::IoAllocationFailed(region_size))?
                 }
                 PciBarRegionType::Memory64BitRegion => {
-                    // BAR allocation must be naturally aligned
+                    // We need do some fixup to keep MMIO RW region and msix cap region page size
+                    // aligned.
+                    region_size = self.fixup_msix_region(bar_id, region_size);
                     mmio_allocator
-                        .allocate(restored_bar_addr, region_size, Some(region_size))
+                        .allocate(
+                            restored_bar_addr,
+                            region_size,
+                            // SAFETY: FFI call. Trivially safe.
+                            Some(unsafe { sysconf(_SC_PAGESIZE) as GuestUsize }),
+                        )
                         .ok_or(PciDeviceError::IoAllocationFailed(region_size))?
                 }
             };
@@ -800,6 +834,23 @@ impl VfioCommon {
         });
     }
 
+    pub(crate) fn get_msix_cap_idx(&self) -> Option<usize> {
+        let mut cap_next = self
+            .vfio_wrapper
+            .read_config_byte(PCI_CONFIG_CAPABILITY_OFFSET);
+
+        while cap_next != 0 {
+            let cap_id = self.vfio_wrapper.read_config_byte(cap_next.into());
+            if PciCapabilityId::from(cap_id) == PciCapabilityId::MsiX {
+                return Some(cap_next as usize);
+            } else {
+                cap_next = self.vfio_wrapper.read_config_byte((cap_next + 1).into());
+            }
+        }
+
+        None
+    }
+
     pub(crate) fn parse_capabilities(&mut self, bdf: PciBdf) {
         let mut cap_next = self
             .vfio_wrapper
@@ -1154,6 +1205,15 @@ impl VfioCommon {
             return self.configuration.read_reg(reg_idx);
         }
 
+        if let Some(id) = self.get_msix_cap_idx() {
+            let msix = self.interrupt.msix.as_mut().unwrap();
+            if reg_idx * 4 == id + 4 {
+                return msix.cap.table;
+            } else if reg_idx * 4 == id + 8 {
+                return msix.cap.pba;
+            }
+        }
+
         // Since we don't support passing multi-functions devices, we should
         // mask the multi-function bit, bit 7 of the Header Type byte on the
         // register 3.
@@ -1316,18 +1376,6 @@ impl VfioPciDevice {
         self.iommu_attached
     }
 
-    fn align_4k(address: u64) -> u64 {
-        (address + 0xfff) & 0xffff_ffff_ffff_f000
-    }
-
-    fn is_4k_aligned(address: u64) -> bool {
-        (address & 0xfff) == 0
-    }
-
-    fn is_4k_multiple(size: u64) -> bool {
-        (size & 0xfff) == 0
-    }
-
     fn generate_sparse_areas(
         caps: &[VfioRegionInfoCap],
         region_index: u32,
@@ -1339,14 +1387,14 @@ impl VfioPciDevice {
             match cap {
                 VfioRegionInfoCap::SparseMmap(sparse_mmap) => return Ok(sparse_mmap.areas.clone()),
                 VfioRegionInfoCap::MsixMappable => {
-                    if !Self::is_4k_aligned(region_start) {
+                    if !is_4k_aligned(region_start) {
                         error!(
                             "Region start address 0x{:x} must be at least aligned on 4KiB",
                             region_start
                         );
                         return Err(VfioPciError::RegionAlignment);
                     }
-                    if !Self::is_4k_multiple(region_size) {
+                    if !is_4k_multiple(region_size) {
                         error!(
                             "Region size 0x{:x} must be at least a multiple of 4KiB",
                             region_size
@@ -1358,7 +1406,8 @@ impl VfioPciDevice {
                     // the MSI-X PBA table, we must calculate the subregions
                     // around them, leading to a list of sparse areas.
                     // We want to make sure we will still trap MMIO accesses
-                    // to these MSI-X specific ranges.
+                    // to these MSI-X specific ranges. If these region don't align
+                    // with pagesize, we can achive it by enlarging its range.
                     //
                     // Using a BtreeMap as the list provided through the iterator is sorted
                     // by key. This ensures proper split of the whole region.
@@ -1366,10 +1415,14 @@ impl VfioPciDevice {
                     if let Some(msix) = vfio_msix {
                         if region_index == msix.cap.table_bir() {
                             let (offset, size) = msix.cap.table_range();
+                            let offset = align_page_size_down(offset);
+                            let size = align_page_size_up(size);
                             inter_ranges.insert(offset, size);
                         }
                         if region_index == msix.cap.pba_bir() {
                             let (offset, size) = msix.cap.pba_range();
+                            let offset = align_page_size_down(offset);
+                            let size = align_page_size_up(size);
                             inter_ranges.insert(offset, size);
                         }
                     }
@@ -1383,8 +1436,7 @@ impl VfioPciDevice {
                                 size: range_offset - current_offset,
                             });
                         }
-
-                        current_offset = Self::align_4k(range_offset + range_size);
+                        current_offset = align_page_size_down(range_offset + range_size);
                     }
 
                     if region_size > current_offset {
@@ -1482,6 +1534,15 @@ impl VfioPciDevice {
                         return Err(VfioPciError::MmapArea);
                     }
 
+                    if !is_page_size_aligned(area.size) || !is_page_size_aligned(area.offset) {
+                        warn!(
+                            "Could not mmap sparse area that is not page size aligned (offset = 0x{:x}, size = 0x{:x})",
+                            area.offset,
+                            area.size,
+                            );
+                        return Ok(());
+                    }
+
                     let user_memory_region = UserMemoryRegion {
                         slot: (self.memory_slot)(),
                         start: region.start.0 + area.offset,

performance-metrics/Cargo.toml

@@ -7,9 +7,9 @@ build = "../build.rs"
 
 [dependencies]
 argh = "0.1.9"
-dirs = "4.0.0"
-serde = { version = "1.0.151", features = ["rc", "derive"] }
-serde_json = "1.0.93"
+dirs = "5.0.0"
+serde = { version = "1.0.164", features = ["rc", "derive"] }
+serde_json = "1.0.96"
 test_infra = { path = "../test_infra" }
-thiserror = "1.0.38"
+thiserror = "1.0.40"
 wait-timeout = "0.2.0"

performance-metrics/src/main.rs

@@ -110,18 +110,23 @@ impl Default for MetricsReport {
 #[derive(Default)]
 pub struct PerformanceTestOverrides {
     test_iterations: Option<u32>,
+    test_timeout: Option<u32>,
 }
 
 impl fmt::Display for PerformanceTestOverrides {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         if let Some(test_iterations) = self.test_iterations {
-            write!(f, "test_iterations = {test_iterations}")?;
+            write!(f, "test_iterations = {test_iterations}, ")?;
+        }
+        if let Some(test_timeout) = self.test_timeout {
+            write!(f, "test_timeout = {test_timeout}")?;
         }
 
         Ok(())
     }
 }
 
+#[derive(Clone)]
 pub struct PerformanceTestControl {
     test_timeout: u32,
     test_iterations: u32,
@@ -188,7 +193,14 @@ impl PerformanceTest {
             .test_iterations
             .unwrap_or(self.control.test_iterations)
         {
-            metrics.push((self.func_ptr)(&self.control));
+            // update the timeout in control if passed explicitly and run testcase with it
+            if let Some(test_timeout) = overrides.test_timeout {
+                let mut control: PerformanceTestControl = self.control.clone();
+                control.test_timeout = test_timeout;
+                metrics.push((self.func_ptr)(&control));
+            } else {
+                metrics.push((self.func_ptr)(&self.control));
+            }
         }
 
         let mean = (self.unit_adjuster)(mean(&metrics).unwrap());
@@ -207,9 +219,9 @@ impl PerformanceTest {
 
     // Calculate the timeout for each test
     // Note: To cover the setup/cleanup time, 20s is added for each iteration of the test
-    pub fn calc_timeout(&self, test_iterations: &Option<u32>) -> u64 {
-        ((self.control.test_timeout + 20) * test_iterations.unwrap_or(self.control.test_iterations))
-            as u64
+    pub fn calc_timeout(&self, test_iterations: &Option<u32>, test_timeout: &Option<u32>) -> u64 {
+        ((test_timeout.unwrap_or(self.control.test_timeout) + 20)
+            * test_iterations.unwrap_or(self.control.test_iterations)) as u64
     }
 }
 
@@ -587,6 +599,7 @@ fn run_test_with_timeout(
 ) -> Result<PerformanceTestResult, Error> {
     let (sender, receiver) = channel::<Result<PerformanceTestResult, Error>>();
     let test_iterations = overrides.test_iterations;
+    let test_timeout = overrides.test_timeout;
     let overrides = overrides.clone();
     thread::spawn(move || {
         println!(
@@ -609,7 +622,7 @@ fn run_test_with_timeout(
     });
 
     // Todo: Need to cleanup/kill all hanging child processes
-    let test_timeout = test.calc_timeout(&test_iterations);
+    let test_timeout = test.calc_timeout(&test_iterations, &test_timeout);
     receiver
         .recv_timeout(Duration::from_secs(test_timeout))
         .map_err(|_| {
@@ -645,6 +658,10 @@ struct Options {
     /// override number of test iterations
     iterations: Option<u32>,
 
+    #[argh(option, long = "timeout")]
+    /// override test timeout, Ex. --timeout 5
+    timeout: Option<u32>,
+
     #[argh(switch, short = 'V', long = "version")]
     /// print version information
     version: bool,
@@ -654,7 +671,7 @@ fn main() {
     let opts: Options = argh::from_env();
 
     if opts.version {
-        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILT_VERSION"));
+        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILD_VERSION"));
         return;
     }
 
@@ -683,6 +700,7 @@ fn main() {
 
     let overrides = Arc::new(PerformanceTestOverrides {
         test_iterations: opts.iterations,
+        test_timeout: opts.timeout,
     });
 
     for test in test_list.iter() {

qcow/src/qcow_raw_file.rs

@@ -66,7 +66,7 @@ impl QcowRawFile {
         non_zero_flags: u64,
     ) -> io::Result<()> {
         self.file.seek(SeekFrom::Start(offset))?;
-        let mut buffer = BufWriter::with_capacity(table.len() * size_of::<u64>(), &mut self.file);
+        let mut buffer = BufWriter::with_capacity(std::mem::size_of_val(table), &mut self.file);
         for addr in table {
             let val = if *addr == 0 {
                 0
@@ -91,7 +91,8 @@ impl QcowRawFile {
     /// Writes a refcount block to the file.
     pub fn write_refcount_block(&mut self, offset: u64, table: &[u16]) -> io::Result<()> {
         self.file.seek(SeekFrom::Start(offset))?;
-        let mut buffer = BufWriter::with_capacity(table.len() * size_of::<u16>(), &mut self.file);
+        let mut buffer = BufWriter::with_capacity(std::mem::size_of_val(table), &mut self.file);
+
         for count in table {
             buffer.write_u16::<BigEndian>(*count)?;
         }

release-notes.md

@@ -1,11 +1,29 @@
-- [v30.1](#v301)
+- [v33.0](#v330)
+    - [D-Bus based API](#d-bus-based-api)
+    - [Passthrough CPU cache information for AArch64](#passthrough-cpu-cache-information-for-aarch64)
+    - [Notable Bug Fixes](#notable-bug-fixes)
+    - [Contributors](#contributors)
+- [v32.0](#v320)
+    - [Increased PCI Segment Limit](#increased-pci-segment-limit)
+    - [API Changes](#api-changes)
+    - [Notable Bug Fixes](#notable-bug-fixes-1)
+    - [Contributors](#contributors-1)
+- [v31.1](#v311)
+- [v31.0](#v310)
+    - [Update to Latest `acpi_tables`](#update-to-latest-acpi_tables)
+    - [Update Reference Kernel to 6.2](#update-reference-kernel-to-62)
+    - [Improvements on Console `SIGWINCH` Handler](#improvements-on-console-sigwinch-handler)
+    - [Remove Directory Support from `MemoryZoneConfig::file`](#remove-directory-support-from-memoryzoneconfigfile)
+    - [Documentation Improvements](#documentation-improvements)
+    - [Notable Bug Fixes](#notable-bug-fixes-2)
+    - [Contributors](#contributors-2)
 - [v30.0](#v300)
     - [Command Line Changes for Reduced Binary Size](#command-line-changes-for-reduced-binary-size)
     - [Basic vfio-user Server Support](#basic-vfio-user-server-support)
     - [Heap Profiling Support](#heap-profiling-support)
-    - [Documentation Improvements](#documentation-improvements)
-    - [Notable Bug Fixes](#notable-bug-fixes)
-    - [Contributors](#contributors)
+    - [Documentation Improvements](#documentation-improvements-1)
+    - [Notable Bug Fixes](#notable-bug-fixes-3)
+    - [Contributors](#contributors-3)
 - [v28.2](#v282)
 - [v29.0](#v290)
     - [Release Binary Supports Both MSHV and KVM](#release-binary-supports-both-mshv-and-kvm)
@@ -15,10 +33,10 @@
     - [`AArch64` Documentation Integration](#aarch64-documentation-integration)
     - [`virtio-block` Counters Enhancement](#virtio-block-counters-enhancement)
     - [TCP Offload Control](#tcp-offload-control)
-    - [Notable Bug Fixes](#notable-bug-fixes-1)
+    - [Notable Bug Fixes](#notable-bug-fixes-4)
     - [Removals](#removals)
     - [Deprecations](#deprecations)
-    - [Contributors](#contributors-1)
+    - [Contributors](#contributors-4)
 - [v28.1](#v281)
 - [v28.0](#v280)
     - [Community Engagement (Reminder)](#community-engagement-reminder)
@@ -26,9 +44,9 @@
     - [Virtualised TPM Support](#virtualised-tpm-support)
     - [Transparent Huge Page Support](#transparent-huge-page-support)
     - [README Quick Start Improved](#readme-quick-start-improved)
-    - [Notable Bug Fixes](#notable-bug-fixes-2)
+    - [Notable Bug Fixes](#notable-bug-fixes-5)
     - [Removals](#removals-1)
-    - [Contributors](#contributors-2)
+    - [Contributors](#contributors-5)
 - [v27.0](#v270)
     - [Community Engagement](#community-engagement)
     - [Prebuilt Packages](#prebuilt-packages)
@@ -37,41 +55,41 @@
     - [Simplified Build Feature Flags](#simplified-build-feature-flags)
     - [Asynchronous Kernel Loading](#asynchronous-kernel-loading)
     - [GDB Support for AArch64](#gdb-support-for-aarch64)
-    - [Notable Bug Fixes](#notable-bug-fixes-3)
+    - [Notable Bug Fixes](#notable-bug-fixes-6)
     - [Deprecations](#deprecations-1)
-    - [Contributors](#contributors-3)
+    - [Contributors](#contributors-6)
 - [v26.0](#v260)
-    - [SMBIOS Improvements via `--platform`](#smbios-improvements-via-platform)
+    - [SMBIOS Improvements via `--platform`](#smbios-improvements-via---platform)
     - [Unified Binary MSHV and KVM Support](#unified-binary-mshv-and-kvm-support)
-    - [Notable Bug Fixes](#notable-bug-fixes-4)
+    - [Notable Bug Fixes](#notable-bug-fixes-7)
     - [Deprecations](#deprecations-2)
     - [Removals](#removals-2)
-    - [Contributors](#contributors-4)
+    - [Contributors](#contributors-7)
 - [v25.0](#v250)
     - [`ch-remote` Improvements](#ch-remote-improvements-1)
     - [VM "Coredump" Support](#vm-coredump-support)
-    - [Notable Bug Fixes](#notable-bug-fixes-5)
+    - [Notable Bug Fixes](#notable-bug-fixes-8)
     - [Removals](#removals-3)
-    - [Contributors](#contributors-5)
+    - [Contributors](#contributors-8)
 - [v24.0](#v240)
     - [Bypass Mode for `virtio-iommu`](#bypass-mode-for-virtio-iommu)
     - [Ensure Identifiers Uniqueness](#ensure-identifiers-uniqueness)
     - [Sparse Mmap support](#sparse-mmap-support)
     - [Expose Platform Serial Number](#expose-platform-serial-number)
-    - [Notable Bug Fixes](#notable-bug-fixes-6)
+    - [Notable Bug Fixes](#notable-bug-fixes-9)
     - [Notable Improvements](#notable-improvements)
     - [Deprecations](#deprecations-3)
     - [New on the Website](#new-on-the-website)
-    - [Contributors](#contributors-6)
+    - [Contributors](#contributors-9)
 - [v23.1](#v231)
 - [v23.0](#v230)
     - [vDPA Support](#vdpa-support)
     - [Updated OS Support list](#updated-os-support-list)
     - [`AArch64` Memory Map Improvements](#aarch64-memory-map-improvements)
     - [`AMX` Support](#amx-support)
-    - [Notable Bug Fixes](#notable-bug-fixes-7)
+    - [Notable Bug Fixes](#notable-bug-fixes-10)
     - [Deprecations](#deprecations-4)
-    - [Contributors](#contributors-7)
+    - [Contributors](#contributors-10)
 - [v22.1](#v221)
 - [v22.0](#v220)
     - [GDB Debug Stub Support](#gdb-debug-stub-support)
@@ -82,13 +100,13 @@
     - [PMU Support for AArch64](#pmu-support-for-aarch64)
     - [Documentation Under CC-BY-4.0 License](#documentation-under-cc-by-40-license)
     - [Deprecation of "Classic" `virtiofsd`](#deprecation-of-classic-virtiofsd)
-    - [Notable Bug Fixes](#notable-bug-fixes-8)
-    - [Contributors](#contributors-8)
+    - [Notable Bug Fixes](#notable-bug-fixes-11)
+    - [Contributors](#contributors-11)
 - [v21.0](#v210)
     - [Efficient Local Live Migration (for Live Upgrade)](#efficient-local-live-migration-for-live-upgrade)
     - [Recommended Kernel is Now 5.15](#recommended-kernel-is-now-515)
-    - [Notable Bug fixes](#notable-bug-fixes-9)
-    - [Contributors](#contributors-9)
+    - [Notable Bug fixes](#notable-bug-fixes-12)
+    - [Contributors](#contributors-12)
 - [v20.2](#v202)
 - [v20.1](#v201)
 - [v20.0](#v200)
@@ -97,8 +115,8 @@
     - [Improved VFIO support](#improved-vfio-support)
     - [Safer code](#safer-code)
     - [Extended documentation](#extended-documentation)
-    - [Notable bug fixes](#notable-bug-fixes-10)
-    - [Contributors](#contributors-10)
+    - [Notable bug fixes](#notable-bug-fixes-13)
+    - [Contributors](#contributors-13)
 - [v19.0](#v190)
     - [Improved PTY handling for serial and `virtio-console`](#improved-pty-handling-for-serial-and-virtio-console)
     - [PCI boot time optimisations](#pci-boot-time-optimisations)
@@ -106,8 +124,8 @@
     - [Live migration enhancements](#live-migration-enhancements)
     - [`virtio-mem` support with `vfio-user`](#virtio-mem-support-with-vfio-user)
     - [AArch64 for `virtio-iommu`](#aarch64-for-virtio-iommu)
-    - [Notable bug fixes](#notable-bug-fixes-11)
-    - [Contributors](#contributors-11)
+    - [Notable bug fixes](#notable-bug-fixes-14)
+    - [Contributors](#contributors-14)
 - [v18.0](#v180)
     - [Experimental User Device (`vfio-user`) support](#experimental-user-device-vfio-user-support)
     - [Migration support for `vhost-user` devices](#migration-support-for-vhost-user-devices)
@@ -117,31 +135,31 @@
     - [Live migration on MSHV hypervisor](#live-migration-on-mshv-hypervisor)
     - [AArch64 CPU topology support](#aarch64-cpu-topology-support)
     - [Power button support on AArch64](#power-button-support-on-aarch64)
-    - [Notable bug fixes](#notable-bug-fixes-12)
-    - [Contributors](#contributors-12)
+    - [Notable bug fixes](#notable-bug-fixes-15)
+    - [Contributors](#contributors-15)
 - [v17.0](#v170)
     - [ARM64 NUMA support using ACPI](#arm64-numa-support-using-acpi)
     - [`Seccomp` support for MSHV backend](#seccomp-support-for-mshv-backend)
     - [Hotplug of `macvtap` devices](#hotplug-of-macvtap-devices)
     - [Improved SGX support](#improved-sgx-support)
     - [Inflight tracking for `vhost-user` devices](#inflight-tracking-for-vhost-user-devices)
-    - [Notable bug fixes](#notable-bug-fixes-13)
-    - [Contributors](#contributors-13)
+    - [Notable bug fixes](#notable-bug-fixes-16)
+    - [Contributors](#contributors-16)
 - [v16.0](#v160)
     - [Improved live migration support](#improved-live-migration-support)
     - [Improved `vhost-user` support](#improved-vhost-user-support)
     - [ARM64 ACPI and UEFI support](#arm64-acpi-and-uefi-support)
-    - [Notable bug fixes](#notable-bug-fixes-14)
+    - [Notable bug fixes](#notable-bug-fixes-17)
     - [Removed functionality](#removed-functionality)
-    - [Contributors](#contributors-14)
+    - [Contributors](#contributors-17)
 - [v15.0](#v150)
     - [Version numbering and stability guarantees](#version-numbering-and-stability-guarantees)
     - [Network device rate limiting](#network-device-rate-limiting)
     - [Support for runtime control of `virtio-net` guest offload](#support-for-runtime-control-of-virtio-net-guest-offload)
-    - [`--api-socket` supports file descriptor parameter](#-api-socket-supports-file-descriptor-parameter)
+    - [`--api-socket` supports file descriptor parameter](#--api-socket-supports-file-descriptor-parameter)
     - [Bug fixes](#bug-fixes)
     - [Deprecations](#deprecations-5)
-    - [Contributors](#contributors-15)
+    - [Contributors](#contributors-18)
 - [v0.14.1](#v0141)
 - [v0.14.0](#v0140)
     - [Structured event monitoring](#structured-event-monitoring)
@@ -151,7 +169,7 @@
     - [PTY control for serial and `virtio-console`](#pty-control-for-serial-and-virtio-console)
     - [Block device rate limiting](#block-device-rate-limiting)
     - [Deprecations](#deprecations-6)
-    - [Contributors](#contributors-16)
+    - [Contributors](#contributors-19)
 - [v0.13.0](#v0130)
     - [Wider VFIO device support](#wider-vfio-device-support)
     - [Improved huge page support](#improved-huge-page-support)
@@ -159,13 +177,13 @@
     - [VHD disk image support](#vhd-disk-image-support)
     - [Improved Virtio device threading](#improved-virtio-device-threading)
     - [Clean shutdown support via synthetic power button](#clean-shutdown-support-via-synthetic-power-button)
-    - [Contributors](#contributors-17)
+    - [Contributors](#contributors-20)
 - [v0.12.0](#v0120)
     - [ARM64 enhancements](#arm64-enhancements)
     - [Removal of `vhost-user-net` and `vhost-user-block` self spawning](#removal-of-vhost-user-net-and-vhost-user-block-self-spawning)
     - [Migration of `vhost-user-fs` backend](#migration-of-vhost-user-fs-backend)
     - [Enhanced "info" API](#enhanced-info-api)
-    - [Contributors](#contributors-18)
+    - [Contributors](#contributors-21)
 - [v0.11.0](#v0110)
     - [`io_uring` support by default for `virtio-block`](#io_uring-support-by-default-for-virtio-block)
     - [Windows Guest Support](#windows-guest-support)
@@ -175,17 +193,17 @@
     - [Improved Linux Boot Time](#improved-linux-boot-time)
     - [`SIGTERM/SIGINT` Interrupt Signal Handling](#sigtermsigint-interrupt-signal-handling)
     - [Default Log Level Changed](#default-log-level-changed)
-    - [New `--balloon` Parameter Added](#new-balloon-parameter-added)
+    - [New `--balloon` Parameter Added](#new---balloon-parameter-added)
     - [Experimental `virtio-watchdog` Support](#experimental-virtio-watchdog-support)
-    - [Notable Bug Fixes](#notable-bug-fixes-15)
-    - [Contributors](#contributors-19)
+    - [Notable Bug Fixes](#notable-bug-fixes-18)
+    - [Contributors](#contributors-22)
 - [v0.10.0](#v0100)
     - [`virtio-block` Support for Multiple Descriptors](#virtio-block-support-for-multiple-descriptors)
     - [Memory Zones](#memory-zones)
     - [`Seccomp` Sandbox Improvements](#seccomp-sandbox-improvements)
     - [Preliminary KVM HyperV Emulation Control](#preliminary-kvm-hyperv-emulation-control)
-    - [Notable Bug Fixes](#notable-bug-fixes-16)
-    - [Contributors](#contributors-20)
+    - [Notable Bug Fixes](#notable-bug-fixes-19)
+    - [Contributors](#contributors-23)
 - [v0.9.0](#v090)
     - [`io_uring` Based Block Device Support](#io_uring-based-block-device-support)
     - [Block and Network Device Statistics](#block-and-network-device-statistics)
@@ -198,17 +216,17 @@
     - [Enhancements to ARM64 Support](#enhancements-to-arm64-support)
     - [Intel SGX Support](#intel-sgx-support)
     - [`Seccomp` Sandbox Improvements](#seccomp-sandbox-improvements-1)
-    - [Notable Bug Fixes](#notable-bug-fixes-17)
-    - [Contributors](#contributors-21)
+    - [Notable Bug Fixes](#notable-bug-fixes-20)
+    - [Contributors](#contributors-24)
 - [v0.8.0](#v080)
     - [Experimental Snapshot and Restore Support](#experimental-snapshot-and-restore-support)
     - [Experimental ARM64 Support](#experimental-arm64-support)
     - [Support for Using 5-level Paging in Guests](#support-for-using-5-level-paging-in-guests)
     - [Virtio Device Interrupt Suppression for Network Devices](#virtio-device-interrupt-suppression-for-network-devices)
     - [`vhost_user_fs` Improvements](#vhost_user_fs-improvements)
-    - [Notable Bug Fixes](#notable-bug-fixes-18)
+    - [Notable Bug Fixes](#notable-bug-fixes-21)
     - [Command Line and API Changes](#command-line-and-api-changes)
-    - [Contributors](#contributors-22)
+    - [Contributors](#contributors-25)
 - [v0.7.0](#v070)
     - [Block, Network, Persistent Memory (PMEM), VirtioFS and Vsock hotplug](#block-network-persistent-memory-pmem-virtiofs-and-vsock-hotplug)
     - [Alternative `libc` Support](#alternative-libc-support)
@@ -218,14 +236,14 @@
     - [`Seccomp` Sandboxing](#seccomp-sandboxing)
     - [Updated Distribution Support](#updated-distribution-support)
     - [Command Line and API Changes](#command-line-and-api-changes-1)
-    - [Contributors](#contributors-23)
+    - [Contributors](#contributors-26)
 - [v0.6.0](#v060)
     - [Directly Assigned Devices Hotplug](#directly-assigned-devices-hotplug)
     - [Shared Filesystem Improvements](#shared-filesystem-improvements)
     - [Block and Networking IO Self Offloading](#block-and-networking-io-self-offloading)
     - [Command Line Interface](#command-line-interface)
     - [PVH Boot](#pvh-boot)
-    - [Contributors](#contributors-24)
+    - [Contributors](#contributors-27)
 - [v0.5.1](#v051)
 - [v0.5.0](#v050)
     - [Virtual Machine Dynamic Resizing](#virtual-machine-dynamic-resizing)
@@ -233,7 +251,7 @@
     - [New Interrupt Management Framework](#new-interrupt-management-framework)
     - [Development Tools](#development-tools)
     - [Kata Containers Integration](#kata-containers-integration)
-    - [Contributors](#contributors-25)
+    - [Contributors](#contributors-28)
 - [v0.4.0](#v040)
     - [Dynamic virtual CPUs addition](#dynamic-virtual-cpus-addition)
     - [Programmatic firmware tables generation](#programmatic-firmware-tables-generation)
@@ -242,7 +260,7 @@
     - [Userspace IOAPIC by default](#userspace-ioapic-by-default)
     - [PCI BAR reprogramming](#pci-bar-reprogramming)
     - [New `cloud-hypervisor` organization](#new-cloud-hypervisor-organization)
-    - [Contributors](#contributors-26)
+    - [Contributors](#contributors-29)
 - [v0.3.0](#v030)
     - [Block device offloading](#block-device-offloading)
     - [Network device backend](#network-device-backend)
@@ -269,7 +287,94 @@
     - [Unit testing](#unit-testing)
     - [Integration tests parallelization](#integration-tests-parallelization)
 
-# v30.1
+# v33.0
+
+This release has been tracked in our [roadmap
+project](https://github.com/orgs/cloud-hypervisor/projects/6) as iteration
+v33.0. The following user visible changes have been made:
+
+### D-Bus based API
+
+A D-Bus based API has been added as an alternative to the existing REST
+API. This feature is gated by the `dbus_api` feature. Details can be
+found in the [API documentation](docs/api.md).
+
+### Expose Host CPU Cache Details for AArch64
+
+Now the CPU cache information on the host is properly exposed to the
+guest on AArch64.
+
+### Notable Bug Fixes
+
+* Report errors explicitly to users when VM failed to boot (#5453)
+* Fix VFIO on platforms with non-4k page size (#5450, #5469)
+* Fix TDX initialization (#5454)
+* Ensure all guest memory regions are page-size aligned (#5496)
+* Fix seccomp filter lists related to virtio-console, serial and pty
+  (#5506, #5524)
+* Populate APIC ID properly (#5512)
+* Ignore and warn TAP FDs in more situations (#5522)
+
+### Contributors
+
+Many thanks to everyone who has contributed to our release:
+
+* Alyssa Ross <hi@alyssa.is>
+* Anatol Belski <anbelski@linux.microsoft.com>
+* Bo Chen <chen.bo@intel.com>
+* Jianyong Wu <jianyong.wu@arm.com>
+* Omer Faruk Bayram <omer.faruk@sartura.hr>
+* Rafael Mendonca <rafaelmendsr@gmail.com>
+* Ravi kumar Veeramally <ravikumar.veeramally@intel.com>
+* Rob Bradford <rbradford@rivosinc.com>
+* Ruslan Mstoi <ruslan.mstoi@intel.com>
+* Yu Li <liyu.yukiteru@bytedance.com>
+* zhongbingnan <zhongbingnan@bytedance.com>
+
+# v32.0
+
+This release has been tracked in our [roadmap
+project](https://github.com/orgs/cloud-hypervisor/projects/6) as iteration
+v32.0. The following user visible changes have been made:
+
+### Increased PCI Segment Limit
+
+The maximum number of PCI segments that can be used is now 96 (up from 16).
+
+### API Changes
+
+* The VmmPingResponse now includes the PID as well as the build details.
+  (#5348)
+
+### Notable Bug Fixes
+
+* Ignore and warn TAP FDs sent via the HTTP request body (#5350)
+* Properly preserve and close valid FDs for TAP devices (#5373)
+* Only use `KVM_ARM_VCPU_PMU_V3` if available (#5360)
+* Only touch the tty flags if it's being used (#5343)
+* Fix seccomp filter lists for vhost-user devices (#5361)
+* The number of vCPUs is capped at the hypervisor maximum (#5357)
+* Fixes for TTY reset (#5414)
+* CPU topology fixes on MSHV (#5325)
+* Seccomp fixes for older distributions (#5397)
+
+### Contributors
+
+Many thanks to everyone who has contributed to our release:
+
+* Alyssa Ross <hi@alyssa.is>
+* Anatol Belski <anbelski@linux.microsoft.com>
+* Bo Chen <chen.bo@intel.com>
+* Hao Xu <howeyxu@tencent.com>
+* Muminul Islam <muislam@microsoft.com>
+* Omer Faruk Bayram <omer.faruk@sartura.hr>
+* Rafael Mendonca <rafaelmendsr@gmail.com>
+* Rob Bradford <rbradford@rivosinc.com>
+* Ruslan Mstoi <ruslan.mstoi@intel.com>
+* Smit Gardhariya <gardhariya.smit@gmail.com>
+* Wei Liu <liuwe@microsoft.com>
+
+# v31.1
 
 This is a bug fix release. The following issues have been addressed:
 
@@ -278,10 +383,72 @@ This is a bug fix release. The following issues have been addressed:
 * Only use `KVM_ARM_VCPU_PMU_V3` if available (#5360)
 * Only touch the tty flags if it's being used (#5343)
 * Fix seccomp filter lists for vhost-user devices (#5361)
-* Fix the offset setting while removing the entire mapping of
-  `vhost-user` FS client (#5235)
-* Fix the `ShutdownVmm` and `Shutdown` commands to call the correct API
-  endpoint (#5322)
+
+# v31.0
+
+This release has been tracked in our [roadmap
+project](https://github.com/orgs/cloud-hypervisor/projects/6) as iteration
+v31.0. The following user visible changes have been made:
+
+### Update to Latest `acpi_tables`
+
+Adapted to the latest [acpi_tables](https://github.com/rust-vmm/acpi_tables).
+There has been significant API changes in the crate.
+
+### Update Reference Kernel to 6.2
+
+Updated the recommended guest kernel version from 6.1.6 to 6.2.
+
+### Improvements on Console `SIGWINCH` Handler
+
+A separate thread had been created to capture the `SIGWINCH` signal and resize
+the guest console. Now the thread is skipped if the console is not resizable.
+
+Two completely different code paths existed for handling console resizing, one
+for `tty` and the other for `pty`. That makes the understanding of the console
+handling code unnecessarily complicated. Now the code paths are unified. Both
+`tty` and `pty` are supported in single `SIGWINCH` handler. And the new handler
+can works with kernel versions earlier than v5.5.
+
+### Remove Directory Support from `MemoryZoneConfig::file`
+
+Setting a directory to `MemoryZoneConfig::file` is no longer supported.
+
+Before this change, user can set a directory to `file` of the `--memory-zone`
+option. In that case, a temporary file will be created as the backing file for
+the `mmap(2)` operation. This functionality has been unnecessary since we had
+the native support for hugepages and allocating anonymous shared memory.
+
+### Documentation Improvements
+
+* Various improvements in API document
+* Improvements in Doc comments
+* Updated Slack channel information in README
+
+### Notable Bug Fixes
+
+* Fixed the offset setting while removing the entire mapping of `vhost-user` FS
+  client.
+* Fixed the `ShutdownVmm` and `Shutdown` commands to call the correct API
+  endpoint.
+
+### Contributors
+
+Many thanks to everyone who has contributed to our release:
+
+* Alyssa Ross <hi@alyssa.is>
+* Bo Chen <chen.bo@intel.com>
+* Daniel Farina <daniel@fdr.io>
+* Dom <peng6662001@163.com>
+* Hao Xu <howeyxu@tencent.com>
+* Muminul Islam <muislam@microsoft.com>
+* Omer Faruk Bayram <omer.faruk@sartura.hr>
+* Ravi kumar Veeramally <ravikumar.veeramally@intel.com>
+* Rob Bradford <rbradford@rivosinc.com>
+* Ruslan Mstoi <ruslan.mstoi@intel.com>
+* Smit Gardhariya <gardhariya.smit@gmail.com>
+* Yang <ailin.yang@intel.com>
+* Yong He <alexyonghe@tencent.com>
 
 # v30.0
 

resources/Dockerfile

@@ -1,10 +1,12 @@
+# SPDX-License-Identifier: Apache-2.0
+#
 # When changing this file don't forget to update the tag name in the
 # .github/workflows/docker-image.yaml file if doing multiple per day
 
 FROM ubuntu:20.04 as dev
 
 ARG TARGETARCH
-ARG RUST_TOOLCHAIN="1.66.1"
+ARG RUST_TOOLCHAIN="1.67.1"
 ARG CLH_SRC_DIR="/cloud-hypervisor"
 ARG CLH_BUILD_DIR="$CLH_SRC_DIR/build"
 ARG CARGO_REGISTRY_DIR="$CLH_BUILD_DIR/cargo_registry"
@@ -13,58 +15,67 @@ ARG CARGO_GIT_REGISTRY_DIR="$CLH_BUILD_DIR/cargo_git_registry"
 ENV CARGO_HOME=/usr/local/rust
 ENV RUSTUP_HOME=$CARGO_HOME
 ENV PATH="$PATH:$CARGO_HOME/bin"
+ENV DEBIAN_FRONTEND=noninteractive
 
 # Install all CI dependencies
+# DL3015 ignored cause not installing openvswitch-switch-dpdk recommended packages breaks ovs_dpdk test
+# hadolint ignore=DL3008,DL3015
 RUN apt-get update \
-	&& apt-get -yq upgrade \
-	&& DEBIAN_FRONTEND=noninteractive apt-get install -yq \
-	build-essential \
-	bc \
-	curl \
-	wget \
-	sudo \
-	mtools \
-	musl-tools \
-	libssl-dev \
-	pkg-config \
-	flex \
-	bison \
-	libelf-dev \
-	qemu-utils \
-	libglib2.0-dev \
-	libpixman-1-dev \
-	libseccomp-dev \
-	libcap-ng-dev \
-	socat \
-	dosfstools \
-	cpio \
-	python \
-	python3 \
-	python3-setuptools \
-	ntfs-3g \
-	openvswitch-switch-dpdk \
-	python3-distutils \
-	uuid-dev \
-	iperf3 \
-	zip \
-	git-core \
-	dnsmasq \
-	dmsetup \
+        && apt-get -yq upgrade \
+        && apt-get install --no-install-recommends -yq \
+        build-essential \
+        bc \
+        curl \
+        wget \
+        sudo \
+        mtools \
+        musl-tools \
+        libssl-dev \
+        pkg-config \
+        flex \
+        bison \
+        libelf-dev \
+        qemu-utils \
+        libglib2.0-dev \
+        libpixman-1-dev \
+        libseccomp-dev \
+        libcap-ng-dev \
+        socat \
+        dosfstools \
+        cpio \
+        python \
+        python3 \
+        python3-setuptools \
+        ntfs-3g \
+        python3-distutils \
+        uuid-dev \
+        iperf3 \
+        zip \
+        git-core \
+        dnsmasq \
+        dmsetup \
+        ca-certificates \
+        unzip \
+        iproute2 \
+        dbus \
+    && apt-get install openvswitch-switch-dpdk -yq \
     && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+    && rm -rf /var/lib/apt/lists/* /var/log/*log  /var/log/apt/* /var/lib/dpkg/*-old /var/cache/debconf/*-old
 
 RUN update-alternatives --set ovs-vswitchd /usr/lib/openvswitch-switch-dpdk/ovs-vswitchd-dpdk
 
+# hadolint ignore=DL3008
 RUN if [ "$TARGETARCH" = "amd64" ]; then \
-	apt-get update \
-	&& apt-get -yq upgrade \
-	&& DEBIAN_FRONTEND=noninteractive apt-get install -yq gcc-multilib gawk \
-	libtool expect gnutls-dev gnutls-bin libfuse-dev \
-	libjson-glib-dev libgmp-dev libtasn1-dev python3-twisted \
-	net-tools softhsm2 \
-	&& apt-get clean \
-    && rm -rf /var/lib/apt/lists/*;	fi
+        apt-get update \
+        && apt-get -yq upgrade \
+        && apt-get install --no-install-recommends -yq gcc-multilib gawk \
+        libtool expect gnutls-dev gnutls-bin libfuse-dev \
+        libjson-glib-dev libgmp-dev libtasn1-dev python3-twisted \
+        net-tools softhsm2 \
+        && apt-get clean \
+        && rm -rf /var/lib/apt/lists/* /var/log/*log  /var/log/apt/* /var/lib/dpkg/*-old /var/cache/debconf/*-old; fi
 
+# hadolint ignore=DL3008
 RUN if [ "$TARGETARCH" = "arm64" ]; then \
         # On AArch64, `setcap` binary should be installed via `libcap2-bin`.
         # The `setcap` binary is used in integration tests.
@@ -72,7 +83,7 @@ RUN if [ "$TARGETARCH" = "arm64" ]; then \
         # kernel (any version) image in `/boot` and modules in `/lib/modules`.
         apt-get update \
         && apt-get -yq upgrade \
-        && DEBIAN_FRONTEND=noninteractive apt-get install -yq \
+        && apt-get install --no-install-recommends -yq \
         libcap2-bin \
         libguestfs-tools \
         linux-image-generic \
@@ -82,11 +93,12 @@ RUN if [ "$TARGETARCH" = "arm64" ]; then \
         perl \
         texinfo \
         && apt-get clean \
-        && rm -rf /var/lib/apt/lists/*;	fi
+        && rm -rf /var/lib/apt/lists/* /var/log/*log  /var/log/apt/* /var/lib/dpkg/*-old /var/cache/debconf/*-old; fi
 
 # Fix the libssl-dev install
+# hadolint ignore=SC2155
 RUN export ARCH="$(uname -m)" \
-    && cp /usr/include/$ARCH-linux-gnu/openssl/opensslconf.h /usr/include/openssl/
+    && cp /usr/include/"$ARCH"-linux-gnu/openssl/opensslconf.h /usr/include/openssl/
 ENV X86_64_UNKNOWN_LINUX_GNU_OPENSSL_LIB_DIR=/usr/lib/x86_64-linux-gnu/
 ENV X86_64_UNKNOWN_LINUX_MUSL_OPENSSL_LIB_DIR=/usr/lib/x86_64-linux-gnu/
 ENV AARCH64_UNKNOWN_LINUX_GNU_OPENSSL_LIB_DIR=/usr/lib/aarch64-linux-gnu/
@@ -94,9 +106,10 @@ ENV AARCH64_UNKNOWN_LINUX_MUSL_OPENSSL_LIB_DIR=/usr/lib/aarch64-linux-gnu/
 ENV OPENSSL_INCLUDE_DIR=/usr/include/
 
 # Install the rust toolchain
+# hadolint ignore=DL4006,SC2155
 RUN export ARCH="$(uname -m)" \
     && nohup curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal --default-toolchain "$RUST_TOOLCHAIN" \
-    && rustup target add $ARCH-unknown-linux-musl --toolchain "$RUST_TOOLCHAIN" \
+    && rustup target add "$ARCH"-unknown-linux-musl --toolchain "$RUST_TOOLCHAIN" \
     && if [ "$TARGETARCH" = "amd64" ]; then rustup toolchain add --profile minimal $RUST_TOOLCHAIN-x86_64-unknown-linux-musl; fi \
     && if [ "$TARGETARCH" = "amd64" ]; then rustup component add rustfmt; fi \
     && if [ "$TARGETARCH" = "amd64" ]; then rustup component add clippy; fi \
@@ -106,12 +119,14 @@ RUN export ARCH="$(uname -m)" \
     && ln -s "$CARGO_GIT_REGISTRY_DIR" "$CARGO_HOME/git"
 
 # Set the rust environment
-RUN echo 'source $CARGO_HOME/env' >> $HOME/.bashrc \
-    && mkdir $HOME/.cargo \
-    && ln -s $CARGO_HOME/env $HOME/.cargo/env
+# hadolint ignore=SC2016
+RUN echo 'source $CARGO_HOME/env' >> "$HOME"/.bashrc \
+    && mkdir "$HOME"/.cargo \
+    && ln -s $CARGO_HOME/env "$HOME"/.cargo/env
 
 # install SPDK NVMe
 # only for 'x86_64' platform images as 'docker buildx' can't build 'spdk'
+# hadolint ignore=DL3003,SC2046
 RUN if [ "$TARGETARCH" = "amd64" ]; then \
        git clone https://github.com/spdk/spdk \
        && cd spdk \
@@ -121,7 +136,7 @@ RUN if [ "$TARGETARCH" = "amd64" ]; then \
        && ./scripts/pkgdep.sh \
        && apt-get clean \
        && ./configure --with-vfio-user \
-       && make -j `nproc` \
+       && make -j $(nproc) \
        && mkdir /usr/local/bin/spdk-nvme \
        && cp ./build/bin/nvmf_tgt /usr/local/bin/spdk-nvme \
        && cp ./scripts/rpc.py /usr/local/bin/spdk-nvme \
@@ -129,6 +144,7 @@ RUN if [ "$TARGETARCH" = "amd64" ]; then \
        && cd .. && rm -rf spdk; fi
 
 # install swtpm only for x86_64 arch
+# hadolint ignore=DL3003
 RUN if [ "$TARGETARCH" = "amd64" ]; then \
     git clone https://github.com/stefanberger/libtpms libtpms_build \
     && cd libtpms_build \
@@ -149,7 +165,7 @@ RUN if [ "$TARGETARCH" = "amd64" ]; then \
 
 # install ethr tool for performance tests
 RUN if [ "$TARGETARCH" = "amd64" ]; then \
-    wget https://github.com/microsoft/ethr/releases/latest/download/ethr_linux.zip \
+    wget -nv https://github.com/microsoft/ethr/releases/latest/download/ethr_linux.zip \
     && unzip ethr_linux.zip \
     && cp ethr /usr/local/bin \
     && rm ethr_linux.zip; fi

resources/linux-config-aarch64

@@ -1,6 +1,6 @@
 #
 # Automatically generated file; DO NOT EDIT.
-# Linux/arm64 6.1.6 Kernel Configuration
+# Linux/arm64 6.2.0 Kernel Configuration
 #
 CONFIG_CC_VERSION_TEXT="gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0"
 CONFIG_CC_IS_GCC=y
@@ -55,7 +55,6 @@ CONFIG_IRQ_DOMAIN=y
 CONFIG_IRQ_DOMAIN_HIERARCHY=y
 CONFIG_GENERIC_IRQ_IPI=y
 CONFIG_GENERIC_MSI_IRQ=y
-CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
 CONFIG_IRQ_MSI_IOMMU=y
 CONFIG_IRQ_FORCED_THREADING=y
 CONFIG_SPARSE_IRQ=y
@@ -203,6 +202,7 @@ CONFIG_INITRAMFS_PRESERVE_MTIME=y
 CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_LD_ORPHAN_WARN=y
+CONFIG_LD_ORPHAN_WARN_LEVEL="warn"
 CONFIG_SYSCTL=y
 CONFIG_SYSCTL_EXCEPTION_TRACE=y
 CONFIG_EXPERT=y
@@ -227,6 +227,7 @@ CONFIG_IO_URING=y
 CONFIG_ADVISE_SYSCALLS=y
 CONFIG_MEMBARRIER=y
 CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_SELFTEST is not set
 # CONFIG_KALLSYMS_ALL is not set
 CONFIG_KALLSYMS_BASE_RELATIVE=y
 CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
@@ -249,7 +250,7 @@ CONFIG_PERF_EVENTS=y
 # end of General setup
 
 CONFIG_ARM64=y
-CONFIG_GCC_SUPPORTS_DYNAMIC_FTRACE_WITH_REGS=y
+CONFIG_GCC_SUPPORTS_DYNAMIC_FTRACE_WITH_ARGS=y
 CONFIG_64BIT=y
 CONFIG_MMU=y
 CONFIG_ARM64_PAGE_SHIFT=12
@@ -349,6 +350,7 @@ CONFIG_ARM64_ERRATUM_2054223=y
 CONFIG_ARM64_ERRATUM_2067961=y
 CONFIG_ARM64_ERRATUM_2441009=y
 CONFIG_ARM64_ERRATUM_2457168=y
+CONFIG_ARM64_ERRATUM_2645198=y
 CONFIG_CAVIUM_ERRATUM_22375=y
 CONFIG_CAVIUM_ERRATUM_23144=y
 CONFIG_CAVIUM_ERRATUM_23154=y
@@ -376,7 +378,7 @@ CONFIG_ARM64_PA_BITS=48
 # CONFIG_CPU_BIG_ENDIAN is not set
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_SCHED_MC=y
-CONFIG_SCHED_CLUSTER is not set
+# CONFIG_SCHED_CLUSTER is not set
 CONFIG_SCHED_SMT=y
 CONFIG_NR_CPUS=128
 CONFIG_HOTPLUG_CPU=y
@@ -471,7 +473,6 @@ CONFIG_RANDOMIZE_BASE=y
 CONFIG_RANDOMIZE_MODULE_REGION_FULL=y
 CONFIG_CC_HAVE_STACKPROTECTOR_SYSREG=y
 CONFIG_STACKPROTECTOR_PER_TASK=y
-CONFIG_ARCH_NR_GPIO=0
 # end of Kernel Features
 
 #
@@ -559,6 +560,7 @@ CONFIG_ACPI_GENERIC_GSI=y
 CONFIG_ACPI_CCA_REQUIRED=y
 # CONFIG_ACPI_DEBUGGER is not set
 CONFIG_ACPI_SPCR_TABLE=y
+# CONFIG_ACPI_FPDT is not set
 # CONFIG_ACPI_EC_DEBUGFS is not set
 # CONFIG_ACPI_AC is not set
 # CONFIG_ACPI_BATTERY is not set
@@ -591,8 +593,10 @@ CONFIG_HAVE_ACPI_APEI=y
 # CONFIG_ACPI_PFRUT is not set
 CONFIG_ACPI_IORT=y
 CONFIG_ACPI_GTDT=y
+CONFIG_ACPI_APMT=y
 CONFIG_ACPI_PPTT=y
 # CONFIG_ACPI_PCC is not set
+# CONFIG_ACPI_FFH is not set
 # CONFIG_PMIC_OPREGION is not set
 CONFIG_ACPI_VIOT=y
 # CONFIG_ACPI_PRMT is not set
@@ -601,6 +605,9 @@ CONFIG_HAVE_KVM=y
 CONFIG_HAVE_KVM_IRQCHIP=y
 CONFIG_HAVE_KVM_IRQFD=y
 CONFIG_HAVE_KVM_IRQ_ROUTING=y
+CONFIG_HAVE_KVM_DIRTY_RING=y
+CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL=y
+CONFIG_NEED_KVM_DIRTY_RING_WITH_BITMAP=y
 CONFIG_HAVE_KVM_EVENTFD=y
 CONFIG_KVM_MMIO=y
 CONFIG_HAVE_KVM_MSI=y
@@ -654,6 +661,7 @@ CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
 CONFIG_MMU_GATHER_TABLE_FREE=y
 CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
 CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
+CONFIG_ARCH_HAS_NMI_SAFE_THIS_CPU_OPS=y
 CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
 CONFIG_HAVE_CMPXCHG_LOCAL=y
 CONFIG_HAVE_CMPXCHG_DOUBLE=y
@@ -718,6 +726,7 @@ CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
 # end of GCOV-based kernel profiling
 
 CONFIG_HAVE_GCC_PLUGINS=y
+CONFIG_FUNCTION_ALIGNMENT=0
 # end of General architecture-dependent options
 
 CONFIG_RT_MUTEXES=y
@@ -884,7 +893,8 @@ CONFIG_ZSMALLOC_STAT=y
 #
 # CONFIG_SLAB is not set
 CONFIG_SLUB=y
-# CONFIG_SLOB is not set
+# CONFIG_SLOB_DEPRECATED is not set
+# CONFIG_SLUB_TINY is not set
 CONFIG_SLAB_MERGE_DEFAULT=y
 # CONFIG_SLAB_FREELIST_RANDOM is not set
 CONFIG_SLAB_FREELIST_HARDENED=y
@@ -951,6 +961,7 @@ CONFIG_ZONE_DMA32=y
 CONFIG_ZONE_DEVICE=y
 # CONFIG_DEVICE_PRIVATE is not set
 CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
+CONFIG_ARCH_USES_PG_ARCH_X=y
 CONFIG_VM_EVENT_COUNTERS=y
 CONFIG_PERCPU_STATS=y
 # CONFIG_GUP_TEST is not set
@@ -1122,7 +1133,6 @@ CONFIG_PCIE_PME=y
 # CONFIG_PCIE_DPC is not set
 # CONFIG_PCIE_PTM is not set
 CONFIG_PCI_MSI=y
-CONFIG_PCI_MSI_IRQ_DOMAIN=y
 CONFIG_PCI_QUIRKS=y
 CONFIG_PCI_DEBUG=y
 CONFIG_PCI_STUB=y
@@ -1272,7 +1282,6 @@ CONFIG_EFI_RUNTIME_WRAPPERS=y
 CONFIG_EFI_GENERIC_STUB=y
 # CONFIG_EFI_ZBOOT is not set
 CONFIG_EFI_ARMSTUB_DTB_LOADER=y
-CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y
 # CONFIG_EFI_BOOTLOADER_CONTROL is not set
 # CONFIG_EFI_CAPSULE_LOADER is not set
 # CONFIG_EFI_TEST is not set
@@ -1326,6 +1335,7 @@ CONFIG_ZRAM_DEF_COMP_LZORLE=y
 CONFIG_ZRAM_DEF_COMP="lzo-rle"
 # CONFIG_ZRAM_WRITEBACK is not set
 # CONFIG_ZRAM_MEMORY_TRACKING is not set
+# CONFIG_ZRAM_MULTI_COMP is not set
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
 # CONFIG_BLK_DEV_DRBD is not set
@@ -1576,6 +1586,7 @@ CONFIG_HW_CONSOLE=y
 CONFIG_VT_HW_CONSOLE_BINDING=y
 CONFIG_UNIX98_PTYS=y
 # CONFIG_LEGACY_PTYS is not set
+# CONFIG_LEGACY_TIOCSTI is not set
 # CONFIG_LDISC_AUTOLOAD is not set
 
 #
@@ -1651,8 +1662,6 @@ CONFIG_DEVMEM=y
 CONFIG_DEVPORT=y
 # CONFIG_TCG_TPM is not set
 # CONFIG_XILLYBUS is not set
-# CONFIG_RANDOM_TRUST_CPU is not set
-# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
 # end of Character devices
 
 #
@@ -1741,6 +1750,7 @@ CONFIG_GPIO_PL061=y
 # Virtual GPIO drivers
 #
 # CONFIG_GPIO_AGGREGATOR is not set
+# CONFIG_GPIO_LATCH is not set
 # CONFIG_GPIO_MOCKUP is not set
 # CONFIG_GPIO_VIRTIO is not set
 # CONFIG_GPIO_SIM is not set
@@ -2158,9 +2168,10 @@ CONFIG_UIO_DMEM_GENIRQ=y
 # CONFIG_UIO_PRUSS is not set
 # CONFIG_UIO_MF624 is not set
 CONFIG_VFIO=y
+CONFIG_VFIO_CONTAINER=y
 CONFIG_VFIO_IOMMU_TYPE1=y
-CONFIG_VFIO_VIRQFD=y
 # CONFIG_VFIO_NOIOMMU is not set
+CONFIG_VFIO_VIRQFD=y
 CONFIG_VFIO_PCI_CORE=y
 CONFIG_VFIO_PCI_MMAP=y
 CONFIG_VFIO_PCI_INTX=y
@@ -2259,6 +2270,7 @@ CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
 # CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
 CONFIG_OF_IOMMU=y
 CONFIG_IOMMU_DMA=y
+# CONFIG_IOMMUFD is not set
 # CONFIG_ARM_SMMU is not set
 # CONFIG_ARM_SMMU_V3 is not set
 CONFIG_VIRTIO_IOMMU=y
@@ -2395,6 +2407,7 @@ CONFIG_ARM_PMU_ACPI=y
 # CONFIG_HISI_PMU is not set
 # CONFIG_HISI_PCIE_PMU is not set
 # CONFIG_HNS3_PMU is not set
+# CONFIG_ARM_CORESIGHT_PMU_ARCH_SYSTEM_PMU is not set
 # end of Performance monitor support
 
 CONFIG_RAS=y
@@ -2570,8 +2583,10 @@ CONFIG_SQUASHFS=y
 CONFIG_SQUASHFS_FILE_CACHE=y
 # CONFIG_SQUASHFS_FILE_DIRECT is not set
 CONFIG_SQUASHFS_DECOMP_SINGLE=y
-# CONFIG_SQUASHFS_DECOMP_MULTI is not set
-# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set
+# CONFIG_SQUASHFS_CHOICE_DECOMP_BY_MOUNT is not set
+CONFIG_SQUASHFS_COMPILE_DECOMP_SINGLE=y
+# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI is not set
+# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU is not set
 # CONFIG_SQUASHFS_XATTR is not set
 CONFIG_SQUASHFS_ZLIB=y
 # CONFIG_SQUASHFS_LZ4 is not set
@@ -2710,7 +2725,6 @@ CONFIG_CRYPTO_MANAGER2=y
 # CONFIG_CRYPTO_USER is not set
 # CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
 # CONFIG_CRYPTO_MANAGER_EXTRA_TESTS is not set
-CONFIG_CRYPTO_GF128MUL=y
 CONFIG_CRYPTO_NULL=y
 CONFIG_CRYPTO_NULL2=y
 # CONFIG_CRYPTO_PCRYPT is not set
@@ -2872,6 +2886,8 @@ CONFIG_CRYPTO_USER_API_RNG=y
 # CONFIG_CRYPTO_SM4_ARM64_CE_BLK is not set
 # CONFIG_CRYPTO_SM4_ARM64_NEON_BLK is not set
 # CONFIG_CRYPTO_AES_ARM64_CE_CCM is not set
+# CONFIG_CRYPTO_SM4_ARM64_CE_CCM is not set
+# CONFIG_CRYPTO_SM4_ARM64_CE_GCM is not set
 # CONFIG_CRYPTO_CRCT10DIF_ARM64_CE is not set
 # end of Accelerated Cryptographic Algorithms for CPU (arm64)
 
@@ -2910,6 +2926,7 @@ CONFIG_ARCH_USE_SYM_ANNOTATIONS=y
 #
 CONFIG_CRYPTO_LIB_UTILS=y
 CONFIG_CRYPTO_LIB_AES=y
+CONFIG_CRYPTO_LIB_GF128MUL=y
 CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
 # CONFIG_CRYPTO_LIB_CHACHA is not set
 # CONFIG_CRYPTO_LIB_CURVE25519 is not set
@@ -3045,7 +3062,8 @@ CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
 # CONFIG_DEBUG_INFO_DWARF4 is not set
 # CONFIG_DEBUG_INFO_DWARF5 is not set
 # CONFIG_DEBUG_INFO_REDUCED is not set
-# CONFIG_DEBUG_INFO_COMPRESSED is not set
+CONFIG_DEBUG_INFO_COMPRESSED_NONE=y
+# CONFIG_DEBUG_INFO_COMPRESSED_ZLIB is not set
 # CONFIG_DEBUG_INFO_SPLIT is not set
 # CONFIG_DEBUG_INFO_BTF is not set
 # CONFIG_GDB_SCRIPTS is not set
@@ -3206,7 +3224,7 @@ CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0
 CONFIG_HAVE_FUNCTION_TRACER=y
 CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
 CONFIG_HAVE_DYNAMIC_FTRACE=y
-CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
+CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
 CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
 CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
 CONFIG_HAVE_C_RECORDMCOUNT=y
@@ -3245,7 +3263,6 @@ CONFIG_RUNTIME_TESTING_MENU=y
 # CONFIG_TEST_HEXDUMP is not set
 # CONFIG_STRING_SELFTEST is not set
 # CONFIG_TEST_STRING_HELPERS is not set
-# CONFIG_TEST_STRSCPY is not set
 # CONFIG_TEST_KSTRTOX is not set
 # CONFIG_TEST_PRINTF is not set
 # CONFIG_TEST_SCANF is not set
@@ -3254,7 +3271,6 @@ CONFIG_RUNTIME_TESTING_MENU=y
 # CONFIG_TEST_XARRAY is not set
 # CONFIG_TEST_MAPLE_TREE is not set
 # CONFIG_TEST_RHASHTABLE is not set
-# CONFIG_TEST_SIPHASH is not set
 # CONFIG_TEST_IDA is not set
 # CONFIG_FIND_BIT_BENCHMARK is not set
 # CONFIG_TEST_FIRMWARE is not set

resources/linux-config-x86_64

@@ -1,18 +1,18 @@
 #
 # Automatically generated file; DO NOT EDIT.
-# Linux/x86 6.1.6 Kernel Configuration
+# Linux/x86 6.2.0 Kernel Configuration
 #
-CONFIG_CC_VERSION_TEXT="gcc (GCC) 12.2.1 20221121 (Red Hat 12.2.1-4)"
+CONFIG_CC_VERSION_TEXT="gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0"
 CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=120201
+CONFIG_GCC_VERSION=110300
 CONFIG_CLANG_VERSION=0
 CONFIG_AS_IS_GNU=y
-CONFIG_AS_VERSION=23700
+CONFIG_AS_VERSION=23800
 CONFIG_LD_IS_BFD=y
-CONFIG_LD_VERSION=23700
+CONFIG_LD_VERSION=23800
 CONFIG_LLD_VERSION=0
-CONFIG_RUST_IS_AVAILABLE=y
 CONFIG_CC_CAN_LINK=y
+CONFIG_CC_CAN_LINK_STATIC=y
 CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
 CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
 CONFIG_CC_HAS_ASM_INLINE=y
@@ -70,7 +70,6 @@ CONFIG_HARDIRQS_SW_RESEND=y
 CONFIG_IRQ_DOMAIN=y
 CONFIG_IRQ_DOMAIN_HIERARCHY=y
 CONFIG_GENERIC_MSI_IRQ=y
-CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
 CONFIG_IRQ_MSI_IOMMU=y
 CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
 CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
@@ -228,6 +227,7 @@ CONFIG_INITRAMFS_PRESERVE_MTIME=y
 CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_LD_ORPHAN_WARN=y
+CONFIG_LD_ORPHAN_WARN_LEVEL="warn"
 CONFIG_SYSCTL=y
 CONFIG_SYSCTL_EXCEPTION_TRACE=y
 CONFIG_HAVE_PCSPKR_PLATFORM=y
@@ -254,6 +254,7 @@ CONFIG_IO_URING=y
 CONFIG_ADVISE_SYSCALLS=y
 CONFIG_MEMBARRIER=y
 CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_SELFTEST is not set
 # CONFIG_KALLSYMS_ALL is not set
 CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
 CONFIG_KALLSYMS_BASE_RELATIVE=y
@@ -274,7 +275,6 @@ CONFIG_PERF_EVENTS=y
 # end of Kernel Performance Events And Counters
 
 # CONFIG_PROFILING is not set
-# CONFIG_RUST is not set
 # end of General setup
 
 CONFIG_64BIT=y
@@ -294,7 +294,6 @@ CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_ARCH_HAS_CPU_RELAX=y
 CONFIG_ARCH_HIBERNATION_POSSIBLE=y
-CONFIG_ARCH_NR_GPIO=1024
 CONFIG_ARCH_SUSPEND_POSSIBLE=y
 CONFIG_AUDIT_ARCH=y
 CONFIG_X86_64_SMP=y
@@ -422,7 +421,10 @@ CONFIG_X86_INTEL_TSX_MODE_OFF=y
 # CONFIG_X86_SGX is not set
 CONFIG_EFI=y
 CONFIG_EFI_STUB=y
+# CONFIG_EFI_HANDOVER_PROTOCOL is not set
 # CONFIG_EFI_MIXED is not set
+# CONFIG_EFI_FAKE_MEMMAP is not set
+CONFIG_EFI_RUNTIME_MAP=y
 # CONFIG_HZ_100 is not set
 CONFIG_HZ_250=y
 # CONFIG_HZ_300 is not set
@@ -455,11 +457,20 @@ CONFIG_HAVE_LIVEPATCH=y
 
 CONFIG_CC_HAS_SLS=y
 CONFIG_CC_HAS_RETURN_THUNK=y
+CONFIG_CC_HAS_ENTRY_PADDING=y
+CONFIG_FUNCTION_PADDING_CFI=11
+CONFIG_FUNCTION_PADDING_BYTES=16
+CONFIG_CALL_PADDING=y
+CONFIG_HAVE_CALL_THUNKS=y
+CONFIG_CALL_THUNKS=y
+CONFIG_PREFIX_SYMBOLS=y
 CONFIG_SPECULATION_MITIGATIONS=y
 CONFIG_PAGE_TABLE_ISOLATION=y
 CONFIG_RETPOLINE=y
 CONFIG_RETHUNK=y
 CONFIG_CPU_UNRET_ENTRY=y
+CONFIG_CALL_DEPTH_TRACKING=y
+# CONFIG_CALL_THUNKS_DEBUG is not set
 CONFIG_CPU_IBPB_ENTRY=y
 CONFIG_CPU_IBRS_ENTRY=y
 # CONFIG_SLS is not set
@@ -533,6 +544,7 @@ CONFIG_HAVE_ACPI_APEI_NMI=y
 # CONFIG_ACPI_CONFIGFS is not set
 # CONFIG_ACPI_PFRUT is not set
 # CONFIG_ACPI_PCC is not set
+# CONFIG_ACPI_FFH is not set
 # CONFIG_PMIC_OPREGION is not set
 CONFIG_ACPI_VIOT=y
 # CONFIG_ACPI_PRMT is not set
@@ -628,6 +640,7 @@ CONFIG_KVM=y
 # CONFIG_KVM_WERROR is not set
 CONFIG_KVM_INTEL=y
 # CONFIG_KVM_AMD is not set
+CONFIG_KVM_SMM=y
 # CONFIG_KVM_XEN is not set
 CONFIG_AS_AVX512=y
 CONFIG_AS_SHA1_NI=y
@@ -684,6 +697,7 @@ CONFIG_MMU_GATHER_TABLE_FREE=y
 CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
 CONFIG_MMU_GATHER_MERGE_VMAS=y
 CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
+CONFIG_ARCH_HAS_NMI_SAFE_THIS_CPU_OPS=y
 CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
 CONFIG_HAVE_CMPXCHG_LOCAL=y
 CONFIG_HAVE_CMPXCHG_DOUBLE=y
@@ -765,6 +779,9 @@ CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
 # end of GCOV-based kernel profiling
 
 CONFIG_HAVE_GCC_PLUGINS=y
+CONFIG_FUNCTION_ALIGNMENT_4B=y
+CONFIG_FUNCTION_ALIGNMENT_16B=y
+CONFIG_FUNCTION_ALIGNMENT=16
 # end of General architecture-dependent options
 
 CONFIG_RT_MUTEXES=y
@@ -882,7 +899,8 @@ CONFIG_ZSMALLOC_STAT=y
 #
 # CONFIG_SLAB is not set
 CONFIG_SLUB=y
-# CONFIG_SLOB is not set
+# CONFIG_SLOB_DEPRECATED is not set
+# CONFIG_SLUB_TINY is not set
 CONFIG_SLAB_MERGE_DEFAULT=y
 # CONFIG_SLAB_FREELIST_RANDOM is not set
 CONFIG_SLAB_FREELIST_HARDENED=y
@@ -957,7 +975,6 @@ CONFIG_SECRETMEM=y
 CONFIG_USERFAULTFD=y
 CONFIG_HAVE_ARCH_USERFAULTFD_WP=y
 CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y
-CONFIG_PTE_MARKER=y
 CONFIG_PTE_MARKER_UFFD_WP=y
 # CONFIG_LRU_GEN is not set
 
@@ -1122,7 +1139,6 @@ CONFIG_PCIE_PME=y
 # CONFIG_PCIE_DPC is not set
 # CONFIG_PCIE_PTM is not set
 CONFIG_PCI_MSI=y
-CONFIG_PCI_MSI_IRQ_DOMAIN=y
 CONFIG_PCI_QUIRKS=y
 CONFIG_PCI_DEBUG=y
 CONFIG_PCI_STUB=y
@@ -1251,11 +1267,8 @@ CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
 # EFI (Extensible Firmware Interface) Support
 #
 CONFIG_EFI_ESRT=y
-CONFIG_EFI_RUNTIME_MAP=y
-# CONFIG_EFI_FAKE_MEMMAP is not set
 CONFIG_EFI_DXE_MEM_ATTRIBUTES=y
 CONFIG_EFI_RUNTIME_WRAPPERS=y
-CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y
 # CONFIG_EFI_BOOTLOADER_CONTROL is not set
 # CONFIG_EFI_CAPSULE_LOADER is not set
 # CONFIG_EFI_TEST is not set
@@ -1296,6 +1309,7 @@ CONFIG_ZRAM_DEF_COMP_LZORLE=y
 CONFIG_ZRAM_DEF_COMP="lzo-rle"
 # CONFIG_ZRAM_WRITEBACK is not set
 # CONFIG_ZRAM_MEMORY_TRACKING is not set
+# CONFIG_ZRAM_MULTI_COMP is not set
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
 # CONFIG_BLK_DEV_DRBD is not set
@@ -1550,6 +1564,7 @@ CONFIG_HW_CONSOLE=y
 CONFIG_VT_HW_CONSOLE_BINDING=y
 CONFIG_UNIX98_PTYS=y
 # CONFIG_LEGACY_PTYS is not set
+# CONFIG_LEGACY_TIOCSTI is not set
 # CONFIG_LDISC_AUTOLOAD is not set
 
 #
@@ -1624,8 +1639,6 @@ CONFIG_HANGCHECK_TIMER=y
 # CONFIG_TCG_TPM is not set
 # CONFIG_TELCLOCK is not set
 # CONFIG_XILLYBUS is not set
-# CONFIG_RANDOM_TRUST_CPU is not set
-# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
 # end of Character devices
 
 #
@@ -1674,6 +1687,7 @@ CONFIG_GPIOLIB_IRQCHIP=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_GPIO_CDEV=y
 CONFIG_GPIO_CDEV_V1=y
+CONFIG_GPIO_IDIO_16=y
 
 #
 # Memory mapped GPIO drivers
@@ -1717,6 +1731,7 @@ CONFIG_GPIO_PCI_IDIO_16=y
 # Virtual GPIO drivers
 #
 # CONFIG_GPIO_AGGREGATOR is not set
+# CONFIG_GPIO_LATCH is not set
 # CONFIG_GPIO_MOCKUP is not set
 # CONFIG_GPIO_VIRTIO is not set
 # CONFIG_GPIO_SIM is not set
@@ -1784,6 +1799,7 @@ CONFIG_WATCHDOG_OPEN_TIMEOUT=0
 # CONFIG_MAX63XX_WATCHDOG is not set
 # CONFIG_ACQUIRE_WDT is not set
 # CONFIG_ADVANTECH_WDT is not set
+# CONFIG_ADVANTECH_EC_WDT is not set
 # CONFIG_ALIM1535_WDT is not set
 # CONFIG_ALIM7101_WDT is not set
 # CONFIG_EBC_C384_WDT is not set
@@ -2124,9 +2140,10 @@ CONFIG_UIO_DMEM_GENIRQ=y
 # CONFIG_UIO_MF624 is not set
 # CONFIG_UIO_HV_GENERIC is not set
 CONFIG_VFIO=y
+CONFIG_VFIO_CONTAINER=y
 CONFIG_VFIO_IOMMU_TYPE1=y
-CONFIG_VFIO_VIRQFD=y
 # CONFIG_VFIO_NOIOMMU is not set
+CONFIG_VFIO_VIRQFD=y
 CONFIG_VFIO_PCI_CORE=y
 CONFIG_VFIO_PCI_MMAP=y
 CONFIG_VFIO_PCI_INTX=y
@@ -2202,6 +2219,7 @@ CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
 CONFIG_IOMMU_DMA=y
 # CONFIG_AMD_IOMMU is not set
 # CONFIG_INTEL_IOMMU is not set
+# CONFIG_IOMMUFD is not set
 # CONFIG_IRQ_REMAP is not set
 CONFIG_HYPERV_IOMMU=y
 CONFIG_VIRTIO_IOMMU=y
@@ -2544,12 +2562,7 @@ CONFIG_LSM="yama,loadpin,safesetid,integrity"
 #
 # Memory initialization
 #
-CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
-CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
-CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
-# CONFIG_INIT_STACK_NONE is not set
-# CONFIG_INIT_STACK_ALL_PATTERN is not set
-CONFIG_INIT_STACK_ALL_ZERO=y
+CONFIG_INIT_STACK_NONE=y
 # CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
 # CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
 CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
@@ -2585,7 +2598,6 @@ CONFIG_CRYPTO_MANAGER2=y
 # CONFIG_CRYPTO_USER is not set
 # CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
 # CONFIG_CRYPTO_MANAGER_EXTRA_TESTS is not set
-CONFIG_CRYPTO_GF128MUL=y
 CONFIG_CRYPTO_NULL=y
 CONFIG_CRYPTO_NULL2=y
 # CONFIG_CRYPTO_PCRYPT is not set
@@ -2795,6 +2807,7 @@ CONFIG_ARCH_USE_SYM_ANNOTATIONS=y
 #
 CONFIG_CRYPTO_LIB_UTILS=y
 CONFIG_CRYPTO_LIB_AES=y
+CONFIG_CRYPTO_LIB_GF128MUL=y
 CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
 # CONFIG_CRYPTO_LIB_CHACHA is not set
 # CONFIG_CRYPTO_LIB_CURVE25519 is not set
@@ -2882,6 +2895,7 @@ CONFIG_FONT_8x16=y
 CONFIG_SG_POOL=y
 CONFIG_ARCH_HAS_PMEM_API=y
 CONFIG_MEMREGION=y
+CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION=y
 CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
 CONFIG_ARCH_HAS_COPY_MC=y
 CONFIG_ARCH_STACKWALK=y
@@ -2922,7 +2936,8 @@ CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
 # CONFIG_DEBUG_INFO_DWARF4 is not set
 # CONFIG_DEBUG_INFO_DWARF5 is not set
 # CONFIG_DEBUG_INFO_REDUCED is not set
-# CONFIG_DEBUG_INFO_COMPRESSED is not set
+CONFIG_DEBUG_INFO_COMPRESSED_NONE=y
+# CONFIG_DEBUG_INFO_COMPRESSED_ZLIB is not set
 # CONFIG_DEBUG_INFO_SPLIT is not set
 # CONFIG_DEBUG_INFO_BTF is not set
 # CONFIG_GDB_SCRIPTS is not set
@@ -3098,6 +3113,7 @@ CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
 CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
 CONFIG_HAVE_FENTRY=y
 CONFIG_HAVE_OBJTOOL_MCOUNT=y
+CONFIG_HAVE_OBJTOOL_NOP_MCOUNT=y
 CONFIG_HAVE_C_RECORDMCOUNT=y
 CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
 CONFIG_TRACING_SUPPORT=y
@@ -3157,7 +3173,6 @@ CONFIG_RUNTIME_TESTING_MENU=y
 # CONFIG_TEST_HEXDUMP is not set
 # CONFIG_STRING_SELFTEST is not set
 # CONFIG_TEST_STRING_HELPERS is not set
-# CONFIG_TEST_STRSCPY is not set
 # CONFIG_TEST_KSTRTOX is not set
 # CONFIG_TEST_PRINTF is not set
 # CONFIG_TEST_SCANF is not set
@@ -3166,7 +3181,6 @@ CONFIG_RUNTIME_TESTING_MENU=y
 # CONFIG_TEST_XARRAY is not set
 # CONFIG_TEST_MAPLE_TREE is not set
 # CONFIG_TEST_RHASHTABLE is not set
-# CONFIG_TEST_SIPHASH is not set
 # CONFIG_TEST_IDA is not set
 # CONFIG_FIND_BIT_BENCHMARK is not set
 # CONFIG_TEST_FIRMWARE is not set

scripts/create-cloud-init.sh

@@ -3,7 +3,7 @@ set -x
 
 rm -f /tmp/ubuntu-cloudinit.img
 mkdosfs -n CIDATA -C /tmp/ubuntu-cloudinit.img 8192
-mcopy -oi /tmp/ubuntu-cloudinit.img -s test_data/cloud-init/ubuntu/user-data ::
-mcopy -oi /tmp/ubuntu-cloudinit.img -s test_data/cloud-init/ubuntu/meta-data ::
-mcopy -oi /tmp/ubuntu-cloudinit.img -s test_data/cloud-init/ubuntu/network-config ::
+mcopy -oi /tmp/ubuntu-cloudinit.img -s test_data/cloud-init/ubuntu/local/user-data ::
+mcopy -oi /tmp/ubuntu-cloudinit.img -s test_data/cloud-init/ubuntu/local/meta-data ::
+mcopy -oi /tmp/ubuntu-cloudinit.img -s test_data/cloud-init/ubuntu/local/network-config ::
 

scripts/dev_cli.sh

@@ -6,8 +6,8 @@
 
 CLI_NAME="Cloud Hypervisor"
 
-CTR_IMAGE_TAG="cloudhypervisor/dev"
-CTR_IMAGE_VERSION="20230123-0"
+CTR_IMAGE_TAG="ghcr.io/cloud-hypervisor/cloud-hypervisor"
+CTR_IMAGE_VERSION="20230620-0"
 CTR_IMAGE="${CTR_IMAGE_TAG}:${CTR_IMAGE_VERSION}"
 
 DOCKER_RUNTIME="docker"
@@ -172,7 +172,11 @@ process_volumes_args() {
 cmd_help() {
     echo ""
     echo "Cloud Hypervisor $(basename "$0")"
-    echo "Usage: $(basename "$0") <command> [<command args>]"
+    echo "Usage: $(basename "$0") [flags] <command> [<command args>]"
+    echo ""
+    echo "Available flags":
+    echo ""
+    echo "    --local        Set the container image version being used to \"local\"."
     echo ""
     echo "Available commands:"
     echo ""
@@ -422,7 +426,7 @@ cmd_tests() {
             --env USER="root" \
             --env CH_LIBC="${libc}" \
             "$CTR_IMAGE" \
-            ./scripts/run_integration_tests_"$(uname -m)".sh "$@" || fix_dir_perms $? || exit $?
+            dbus-run-session ./scripts/run_integration_tests_"$(uname -m)".sh "$@" || fix_dir_perms $? || exit $?
     fi
 
     if [ "$integration_sgx" = true ]; then
@@ -535,6 +539,7 @@ cmd_tests() {
             --volume "$CLH_INTEGRATION_WORKLOADS:$CTR_CLH_INTEGRATION_WORKLOADS" \
             --env USER="root" \
             --env CH_LIBC="${libc}" \
+            --env RUST_BACKTRACE="${RUST_BACKTRACE}" \
             "$CTR_IMAGE" \
             ./scripts/run_metrics.sh "$@" || fix_dir_perms $? || exit $?
     fi

scripts/run_integration_tests_aarch64.sh

@@ -225,8 +225,8 @@ fi
 
 BUILD_TARGET="aarch64-unknown-linux-${CH_LIBC}"
 if [[ "${BUILD_TARGET}" == "aarch64-unknown-linux-musl" ]]; then
-export TARGET_CC="musl-gcc"
-export RUSTFLAGS="-C link-arg=-lgcc -C link_arg=-specs -C link_arg=/usr/lib/aarch64-linux-musl/musl-gcc.specs"
+    export TARGET_CC="musl-gcc"
+    export RUSTFLAGS="-C link-arg=-lgcc -C link_arg=-specs -C link_arg=/usr/lib/aarch64-linux-musl/musl-gcc.specs"
 fi
 
 export RUST_BACKTRACE=1
@@ -240,7 +240,9 @@ sudo bash -c "echo 10 > /sys/kernel/mm/ksm/sleep_millisecs"
 sudo bash -c "echo 1 > /sys/kernel/mm/ksm/run"
 
 # Both test_vfio and ovs-dpdk rely on hugepages
-echo 6144 | sudo tee /proc/sys/vm/nr_hugepages
+HUGEPAGESIZE=`grep Hugepagesize /proc/meminfo | awk '{print $2}'`
+PAGE_NUM=`echo $((12288 * 1024 / $HUGEPAGESIZE))`
+echo $PAGE_NUM | sudo tee /proc/sys/vm/nr_hugepages
 sudo chmod a+rwX /dev/hugepages
 
 # Run all direct kernel boot (Device Tree) test cases in mod `parallel`
@@ -279,4 +281,12 @@ else
     exit $RES
 fi
 
+# Run tests on dbus_api
+if [ $RES -eq 0 ]; then
+    cargo build --features "dbus_api" --all --release --target $BUILD_TARGET
+    export RUST_BACKTRACE=1
+    time cargo test "dbus_api::$test_filter" --target $BUILD_TARGET -- ${test_binary_args[*]}
+    RES=$?
+fi
+
 exit $RES

scripts/run_integration_tests_live_migration.sh

@@ -56,26 +56,8 @@ popd
 
 # Build custom kernel based on virtio-pmem and virtio-fs upstream patches
 VMLINUX_IMAGE="$WORKLOADS_DIR/vmlinux"
-
-LINUX_CUSTOM_DIR="$WORKLOADS_DIR/linux-custom"
-
 if [ ! -f "$VMLINUX_IMAGE" ]; then
-    SRCDIR=$PWD
-    pushd $WORKLOADS_DIR
-    time git clone --depth 1 "https://github.com/cloud-hypervisor/linux.git" -b "ch-6.1.6" $LINUX_CUSTOM_DIR
-    cp $SRCDIR/resources/linux-config-x86_64 $LINUX_CUSTOM_DIR/.config
-    popd
-fi
-
-if [ ! -f "$VMLINUX_IMAGE" ]; then
-    pushd $LINUX_CUSTOM_DIR
-    time make bzImage -j `nproc`
-    cp vmlinux $VMLINUX_IMAGE || exit 1
-    popd
-fi
-
-if [ -d "$LINUX_CUSTOM_DIR" ]; then
-    rm -rf $LINUX_CUSTOM_DIR
+    build_custom_linux
 fi
 
 BUILD_TARGET="$(uname -m)-unknown-linux-${CH_LIBC}"
@@ -89,7 +71,9 @@ fi
 cargo build --no-default-features --features "kvm,mshv" --all --release --target $BUILD_TARGET
 
 # Test ovs-dpdk relies on hugepages
-echo 6144 | sudo tee /proc/sys/vm/nr_hugepages
+HUGEPAGESIZE=`grep Hugepagesize /proc/meminfo | awk '{print $2}'`
+PAGE_NUM=`echo $((12288 * 1024 / $HUGEPAGESIZE))`
+echo $PAGE_NUM | sudo tee /proc/sys/vm/nr_hugepages
 sudo chmod a+rwX /dev/hugepages
 
 export RUST_BACKTRACE=1

scripts/run_integration_tests_rate_limiter.sh

@@ -45,29 +45,7 @@ if [ $? -ne 0 ]; then
 fi
 popd
 
-# Build custom kernel based on virtio-pmem and virtio-fs upstream patches
-VMLINUX_IMAGE="$WORKLOADS_DIR/vmlinux"
-
-LINUX_CUSTOM_DIR="$WORKLOADS_DIR/linux-custom"
-
-if [ ! -f "$VMLINUX_IMAGE" ]; then
-    SRCDIR=$PWD
-    pushd $WORKLOADS_DIR
-    time git clone --depth 1 "https://github.com/cloud-hypervisor/linux.git" -b "ch-6.1.6" $LINUX_CUSTOM_DIR
-    cp $SRCDIR/resources/linux-config-x86_64 $LINUX_CUSTOM_DIR/.config
-    popd
-fi
-
-if [ ! -f "$VMLINUX_IMAGE" ]; then
-    pushd $LINUX_CUSTOM_DIR
-    time make bzImage -j `nproc`
-    cp vmlinux $VMLINUX_IMAGE || exit 1
-    popd
-fi
-
-if [ -d "$LINUX_CUSTOM_DIR" ]; then
-    rm -rf $LINUX_CUSTOM_DIR
-fi
+build_custom_linux
 
 BUILD_TARGET="$(uname -m)-unknown-linux-${CH_LIBC}"
 CFLAGS=""

scripts/run_integration_tests_sgx.sh

@@ -42,8 +42,8 @@ BUILD_TARGET="$(uname -m)-unknown-linux-${CH_LIBC}"
 CFLAGS=""
 TARGET_CC=""
 if [[ "${BUILD_TARGET}" == "x86_64-unknown-linux-musl" ]]; then
-TARGET_CC="musl-gcc"
-CFLAGS="-I /usr/include/x86_64-linux-musl/ -idirafter /usr/include/"
+    TARGET_CC="musl-gcc"
+    CFLAGS="-I /usr/include/x86_64-linux-musl/ -idirafter /usr/include/"
 fi
 
 cargo build --no-default-features --features "kvm,mshv" --all --release --target $BUILD_TARGET

scripts/run_integration_tests_vfio.sh

@@ -7,14 +7,45 @@ source $(dirname "$0")/test-util.sh
 process_common_args "$@"
 
 WORKLOADS_DIR="$HOME/workloads"
-FOCAL_OS_IMAGE_NAME="focal-server-cloudimg-amd64-custom-20210609-0.raw"
-FOCAL_OS_IMAGE="$WORKLOADS_DIR/$FOCAL_OS_IMAGE_NAME"
+mkdir -p "$WORKLOADS_DIR"
+
+cp scripts/sha1sums-x86_64 $WORKLOADS_DIR
+
+FW_URL=$(curl --silent https://api.github.com/repos/cloud-hypervisor/rust-hypervisor-firmware/releases/latest | grep "browser_download_url" | grep -o 'https://.*[^ "]')
 FW="$WORKLOADS_DIR/hypervisor-fw"
+if [ ! -f "$FW" ]; then
+    pushd $WORKLOADS_DIR
+    time wget --quiet $FW_URL || exit 1
+    popd
+fi
+
+FOCAL_OS_IMAGE_NAME="focal-server-cloudimg-amd64-custom-20210609-0.qcow2"
+FOCAL_OS_IMAGE_URL="https://cloud-hypervisor.azureedge.net/$FOCAL_OS_IMAGE_NAME"
+FOCAL_OS_IMAGE="$WORKLOADS_DIR/$FOCAL_OS_IMAGE_NAME"
+if [ ! -f "$FOCAL_OS_IMAGE" ]; then
+    pushd $WORKLOADS_DIR
+    time wget --quiet $FOCAL_OS_IMAGE_URL || exit 1
+    popd
+fi
+
+FOCAL_OS_RAW_IMAGE_NAME="focal-server-cloudimg-amd64-custom-20210609-0.raw"
+FOCAL_OS_RAW_IMAGE="$WORKLOADS_DIR/$FOCAL_OS_RAW_IMAGE_NAME"
+if [ ! -f "$FOCAL_OS_RAW_IMAGE" ]; then
+    pushd $WORKLOADS_DIR
+    time qemu-img convert -p -f qcow2 -O raw $FOCAL_OS_IMAGE_NAME $FOCAL_OS_RAW_IMAGE_NAME || exit 1
+    popd
+fi
+
+pushd $WORKLOADS_DIR
+sha1sum sha1sums-x86_64 --check --ignore-missing
+if [ $? -ne 0 ]; then
+    echo "sha1sum validation of images failed, remove invalid images to fix the issue."
+    exit 1
+fi
+popd
 
 VMLINUX_IMAGE="$WORKLOADS_DIR/vmlinux"
-if [ ! -f "$VMLINUX_IMAGE" ]; then
-    build_custom_linux
-fi
+build_custom_linux
 
 BLK_IMAGE="$WORKLOADS_DIR/blk.img"
 MNT_DIR="mount_image"
@@ -33,7 +64,7 @@ VFIO_DIR="$WORKLOADS_DIR/vfio"
 VFIO_DISK_IMAGE="$WORKLOADS_DIR/vfio.img"
 rm -rf $VFIO_DIR $VFIO_DISK_IMAGE
 mkdir -p $VFIO_DIR
-cp $FOCAL_OS_IMAGE $VFIO_DIR
+cp $FOCAL_OS_RAW_IMAGE $VFIO_DIR
 cp $FW $VFIO_DIR
 cp $VMLINUX_IMAGE $VFIO_DIR || exit 1
 
@@ -52,7 +83,9 @@ cp target/$BUILD_TARGET/release/cloud-hypervisor $VFIO_DIR
 cp target/$BUILD_TARGET/release/ch-remote $VFIO_DIR
 
 # test_vfio rely on hugepages
-echo 6144 | sudo tee /proc/sys/vm/nr_hugepages
+HUGEPAGESIZE=`grep Hugepagesize /proc/meminfo | awk '{print $2}'`
+PAGE_NUM=`echo $((12288 * 1024 / $HUGEPAGESIZE))`
+echo $PAGE_NUM | sudo tee /proc/sys/vm/nr_hugepages
 sudo chmod a+rwX /dev/hugepages
 
 export RUST_BACKTRACE=1

scripts/run_integration_tests_windows_aarch64.sh

@@ -24,8 +24,8 @@ BUILD_TARGET="$(uname -m)-unknown-linux-${CH_LIBC}"
 CFLAGS=""
 TARGET_CC=""
 if [[ "${BUILD_TARGET}" == "aarch64-unknown-linux-musl" ]]; then
-export TARGET_CC="musl-gcc"
-export RUSTFLAGS="-C link-arg=-lgcc -C link_arg=-specs -C link_arg=/usr/lib/aarch64-linux-musl/musl-gcc.specs"
+    export TARGET_CC="musl-gcc"
+    export RUSTFLAGS="-C link-arg=-lgcc -C link_arg=-specs -C link_arg=/usr/lib/aarch64-linux-musl/musl-gcc.specs"
 fi
 
 # Check if the images are present

scripts/run_integration_tests_windows_x86_64.sh

@@ -26,8 +26,8 @@ BUILD_TARGET="$(uname -m)-unknown-linux-${CH_LIBC}"
 CFLAGS=""
 TARGET_CC=""
 if [[ "${BUILD_TARGET}" == "x86_64-unknown-linux-musl" ]]; then
-TARGET_CC="musl-gcc"
-CFLAGS="-I /usr/include/x86_64-linux-musl/ -idirafter /usr/include/"
+    TARGET_CC="musl-gcc"
+    CFLAGS="-I /usr/include/x86_64-linux-musl/ -idirafter /usr/include/"
 fi
 
 # Check if the images are present

scripts/run_integration_tests_x86_64.sh

@@ -169,7 +169,9 @@ sudo bash -c "echo 10 > /sys/kernel/mm/ksm/sleep_millisecs"
 sudo bash -c "echo 1 > /sys/kernel/mm/ksm/run"
 
 # Both test_vfio, ovs-dpdk and vDPA tests rely on hugepages
-echo 6144 | sudo tee /proc/sys/vm/nr_hugepages
+HUGEPAGESIZE=`grep Hugepagesize /proc/meminfo | awk '{print $2}'`
+PAGE_NUM=`echo $((12288 * 1024 / $HUGEPAGESIZE))`
+echo $PAGE_NUM | sudo tee /proc/sys/vm/nr_hugepages
 sudo chmod a+rwX /dev/hugepages
 
 # Update max locked memory to 'unlimited' to avoid issues with vDPA
@@ -187,4 +189,13 @@ if [ $RES -eq 0 ]; then
     RES=$?
 fi
 
+# Run tests on dbus_api
+if [ $RES -eq 0 ]; then
+    cargo build --no-default-features --features "kvm,mshv,dbus_api" --all  --release --target $BUILD_TARGET
+    export RUST_BACKTRACE=1
+    # integration tests now do not reply on build feature "dbus_api"
+    time cargo test $test_features "dbus_api::$test_filter" -- ${test_binary_args[*]}
+    RES=$?
+fi
+
 exit $RES

scripts/run_metrics.sh

@@ -95,7 +95,9 @@ fi
 cargo build --no-default-features --features "kvm,mshv" --all --release --target $BUILD_TARGET
 
 # setup hugepages
-echo 6144 | sudo tee /proc/sys/vm/nr_hugepages
+HUGEPAGESIZE=`grep Hugepagesize /proc/meminfo | awk '{print $2}'`
+PAGE_NUM=`echo $((12288 * 1024 / $HUGEPAGESIZE))`
+echo $PAGE_NUM | sudo tee /proc/sys/vm/nr_hugepages
 sudo chmod a+rwX /dev/hugepages
 
 if [ -n "$test_filter" ]; then
@@ -105,7 +107,12 @@ fi
 # Ensure that git commands can be run in this directory (for metrics report)
 git config --global --add safe.directory $PWD
 
-export RUST_BACKTRACE=1
+RUST_BACKTRACE_VALUE=`echo $RUST_BACKTRACE`
+if [ -z $RUST_BACKTRACE_VALUE ];then
+	export RUST_BACKTRACE=1
+else
+	echo "RUST_BACKTRACE is set to: $RUST_BACKTRACE_VALUE"
+fi
 time target/$BUILD_TARGET/release/performance-metrics ${test_binary_args[*]}
 RES=$?
 

scripts/run_unit_tests.sh

@@ -22,3 +22,4 @@ fi
 
 export RUST_BACKTRACE=1
 cargo test --lib --bins --target $BUILD_TARGET --workspace ${cargo_args[@]} || exit 1
+cargo test --doc --target $BUILD_TARGET --workspace ${cargo_args[@]} || exit 1

scripts/sha1sums-x86_64

@@ -3,4 +3,3 @@ f1eccdc5e1b515dbad294426ab081b47ebfb97c0 focal-server-cloudimg-amd64-custom-2021
 7f5a8358243a96adf61f5c20139b29f308f2c0e3 focal-server-cloudimg-amd64-custom-20210609-0.raw
 864c074e2f1bd753667a35188b510d83a1d62793 jammy-server-cloudimg-amd64-custom-20230119-0.qcow2
 24358ee053f94e7f710ea4ce9e7a63eff2a1eb25 jammy-server-cloudimg-amd64-custom-20230119-0.raw
-

scripts/test-util.sh

@@ -46,7 +46,7 @@ build_custom_linux() {
     ARCH=$(uname -m)
     SRCDIR=$PWD
     LINUX_CUSTOM_DIR="$WORKLOADS_DIR/linux-custom"
-    LINUX_CUSTOM_BRANCH="ch-6.1.6"
+    LINUX_CUSTOM_BRANCH="ch-6.2"
     LINUX_CUSTOM_URL="https://github.com/cloud-hypervisor/linux.git"
 
     checkout_repo "$LINUX_CUSTOM_DIR" "$LINUX_CUSTOM_URL" "$LINUX_CUSTOM_BRANCH"

src/bin/ch-remote.rs

@@ -11,13 +11,19 @@ use argh::FromArgs;
 use option_parser::{ByteSized, ByteSizedParseError};
 use std::fmt;
 use std::io::Read;
+use std::marker::PhantomData;
 use std::os::unix::net::UnixStream;
 use std::process;
+#[cfg(feature = "dbus_api")]
+use zbus::{dbus_proxy, zvariant::Optional};
+
+type ApiResult = Result<(), Error>;
 
 #[derive(Debug)]
 enum Error {
-    Connect(std::io::Error),
-    ApiClient(ApiClientError),
+    HttpApiClient(ApiClientError),
+    #[cfg(feature = "dbus_api")]
+    DBusApiClient(zbus::Error),
     InvalidMemorySize(ByteSizedParseError),
     InvalidBalloonSize(ByteSizedParseError),
     AddDeviceConfig(vmm::config::Error),
@@ -37,8 +43,9 @@ impl fmt::Display for Error {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         use Error::*;
         match self {
-            ApiClient(e) => e.fmt(f),
-            Connect(e) => write!(f, "Error opening HTTP socket: {e}"),
+            HttpApiClient(e) => e.fmt(f),
+            #[cfg(feature = "dbus_api")]
+            DBusApiClient(e) => write!(f, "Error D-Bus proxy: {e}"),
             InvalidMemorySize(e) => write!(f, "Error parsing memory size: {e:?}"),
             InvalidBalloonSize(e) => write!(f, "Error parsing balloon size: {e:?}"),
             AddDeviceConfig(e) => write!(f, "Error parsing device syntax: {e}"),
@@ -56,12 +63,430 @@ impl fmt::Display for Error {
     }
 }
 
-fn resize_api_command(
-    socket: &mut UnixStream,
+enum TargetApi<'a> {
+    HttpApi(UnixStream, PhantomData<&'a ()>),
+    #[cfg(feature = "dbus_api")]
+    DBusApi(DBusApi1ProxyBlocking<'a>),
+}
+
+#[cfg(feature = "dbus_api")]
+#[dbus_proxy(name = "org.cloudhypervisor.DBusApi1", assume_defaults = false)]
+trait DBusApi1 {
+    fn vmm_ping(&self) -> zbus::Result<String>;
+    fn vmm_shutdown(&self) -> zbus::Result<()>;
+    fn vm_add_device(&self, device_config: &str) -> zbus::Result<Optional<String>>;
+    fn vm_add_disk(&self, disk_config: &str) -> zbus::Result<Optional<String>>;
+    fn vm_add_fs(&self, fs_config: &str) -> zbus::Result<Optional<String>>;
+    fn vm_add_net(&self, net_config: &str) -> zbus::Result<Optional<String>>;
+    fn vm_add_pmem(&self, pmem_config: &str) -> zbus::Result<Optional<String>>;
+    fn vm_add_user_device(&self, vm_add_user_device: &str) -> zbus::Result<Optional<String>>;
+    fn vm_add_vdpa(&self, vdpa_config: &str) -> zbus::Result<Optional<String>>;
+    fn vm_add_vsock(&self, vsock_config: &str) -> zbus::Result<Optional<String>>;
+    fn vm_boot(&self) -> zbus::Result<()>;
+    fn vm_coredump(&self, vm_coredump_data: &str) -> zbus::Result<()>;
+    fn vm_counters(&self) -> zbus::Result<Optional<String>>;
+    fn vm_create(&self, vm_config: &str) -> zbus::Result<()>;
+    fn vm_delete(&self) -> zbus::Result<()>;
+    fn vm_info(&self) -> zbus::Result<String>;
+    fn vm_pause(&self) -> zbus::Result<()>;
+    fn vm_power_button(&self) -> zbus::Result<()>;
+    fn vm_reboot(&self) -> zbus::Result<()>;
+    fn vm_remove_device(&self, vm_remove_device: &str) -> zbus::Result<()>;
+    fn vm_resize(&self, vm_resize: &str) -> zbus::Result<()>;
+    fn vm_resize_zone(&self, vm_resize_zone: &str) -> zbus::Result<()>;
+    fn vm_restore(&self, restore_config: &str) -> zbus::Result<()>;
+    fn vm_receive_migration(&self, receive_migration_data: &str) -> zbus::Result<()>;
+    fn vm_send_migration(&self, receive_migration_data: &str) -> zbus::Result<()>;
+    fn vm_resume(&self) -> zbus::Result<()>;
+    fn vm_shutdown(&self) -> zbus::Result<()>;
+    fn vm_snapshot(&self, vm_snapshot_config: &str) -> zbus::Result<()>;
+}
+
+#[cfg(feature = "dbus_api")]
+impl<'a> DBusApi1ProxyBlocking<'a> {
+    fn new_connection(name: &'a str, path: &'a str, system_bus: bool) -> Result<Self, zbus::Error> {
+        let connection = if system_bus {
+            zbus::blocking::Connection::system()?
+        } else {
+            zbus::blocking::Connection::session()?
+        };
+
+        Self::builder(&connection)
+            .destination(name)?
+            .path(path)?
+            .build()
+    }
+
+    fn print_response(&self, result: zbus::Result<Optional<String>>) -> ApiResult {
+        result
+            .map(|ret| {
+                if let Some(ref output) = *ret {
+                    println!("{output}");
+                }
+            })
+            .map_err(Error::DBusApiClient)
+    }
+
+    fn api_vmm_ping(&self) -> ApiResult {
+        self.vmm_ping()
+            .map(|ping| println!("{ping}"))
+            .map_err(Error::DBusApiClient)
+    }
+
+    fn api_vmm_shutdown(&self) -> ApiResult {
+        self.vmm_shutdown().map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_add_device(&self, device_config: &str) -> ApiResult {
+        self.print_response(self.vm_add_device(device_config))
+    }
+
+    fn api_vm_add_disk(&self, disk_config: &str) -> ApiResult {
+        self.print_response(self.vm_add_disk(disk_config))
+    }
+
+    fn api_vm_add_fs(&self, fs_config: &str) -> ApiResult {
+        self.print_response(self.vm_add_fs(fs_config))
+    }
+
+    fn api_vm_add_net(&self, net_config: &str) -> ApiResult {
+        self.print_response(self.vm_add_net(net_config))
+    }
+
+    fn api_vm_add_pmem(&self, pmem_config: &str) -> ApiResult {
+        self.print_response(self.vm_add_pmem(pmem_config))
+    }
+
+    fn api_vm_add_user_device(&self, vm_add_user_device: &str) -> ApiResult {
+        self.print_response(self.vm_add_user_device(vm_add_user_device))
+    }
+
+    fn api_vm_add_vdpa(&self, vdpa_config: &str) -> ApiResult {
+        self.print_response(self.vm_add_vdpa(vdpa_config))
+    }
+
+    fn api_vm_add_vsock(&self, vsock_config: &str) -> ApiResult {
+        self.print_response(self.vm_add_vsock(vsock_config))
+    }
+
+    fn api_vm_boot(&self) -> ApiResult {
+        self.vm_boot().map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_coredump(&self, vm_coredump_data: &str) -> ApiResult {
+        self.vm_coredump(vm_coredump_data)
+            .map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_counters(&self) -> ApiResult {
+        self.print_response(self.vm_counters())
+    }
+
+    fn api_vm_create(&self, vm_config: &str) -> ApiResult {
+        self.vm_create(vm_config).map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_delete(&self) -> ApiResult {
+        self.vm_delete().map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_info(&self) -> ApiResult {
+        self.vm_info()
+            .map(|info| println!("{info}"))
+            .map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_pause(&self) -> ApiResult {
+        self.vm_pause().map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_power_button(&self) -> ApiResult {
+        self.vm_power_button().map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_reboot(&self) -> ApiResult {
+        self.vm_reboot().map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_remove_device(&self, vm_remove_device: &str) -> ApiResult {
+        self.vm_remove_device(vm_remove_device)
+            .map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_resize(&self, vm_resize: &str) -> ApiResult {
+        self.vm_resize(vm_resize).map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_resize_zone(&self, vm_resize_zone: &str) -> ApiResult {
+        self.vm_resize_zone(vm_resize_zone)
+            .map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_restore(&self, restore_config: &str) -> ApiResult {
+        self.vm_restore(restore_config)
+            .map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_receive_migration(&self, receive_migration_data: &str) -> ApiResult {
+        self.vm_receive_migration(receive_migration_data)
+            .map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_send_migration(&self, send_migration_data: &str) -> ApiResult {
+        self.vm_send_migration(send_migration_data)
+            .map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_resume(&self) -> ApiResult {
+        self.vm_resume().map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_shutdown(&self) -> ApiResult {
+        self.vm_shutdown().map_err(Error::DBusApiClient)
+    }
+
+    fn api_vm_snapshot(&self, vm_snapshot_config: &str) -> ApiResult {
+        self.vm_snapshot(vm_snapshot_config)
+            .map_err(Error::DBusApiClient)
+    }
+}
+
+impl<'a> TargetApi<'a> {
+    fn do_command(&mut self, toplevel: &TopLevel) -> ApiResult {
+        match self {
+            Self::HttpApi(api_socket, _) => rest_api_do_command(toplevel, api_socket),
+            #[cfg(feature = "dbus_api")]
+            Self::DBusApi(proxy) => dbus_api_do_command(toplevel, proxy),
+        }
+    }
+}
+
+fn rest_api_do_command(toplevel: &TopLevel, socket: &mut UnixStream) -> ApiResult {
+    match toplevel.command {
+        SubCommandEnum::Boot(_) => {
+            simple_api_command(socket, "PUT", "boot", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Delete(_) => {
+            simple_api_command(socket, "PUT", "delete", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::ShutdownVmm(_) => {
+            simple_api_full_command(socket, "PUT", "vmm.shutdown", None)
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Resume(_) => {
+            simple_api_command(socket, "PUT", "resume", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::PowerButton(_) => {
+            simple_api_command(socket, "PUT", "power-button", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Reboot(_) => {
+            simple_api_command(socket, "PUT", "reboot", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Pause(_) => {
+            simple_api_command(socket, "PUT", "pause", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Info(_) => {
+            simple_api_command(socket, "GET", "info", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Counters(_) => {
+            simple_api_command(socket, "GET", "counters", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Ping(_) => {
+            simple_api_full_command(socket, "GET", "vmm.ping", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Shutdown(_) => {
+            simple_api_command(socket, "PUT", "shutdown", None).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Resize(ref config) => {
+            let resize = resize_config(config.cpus, &config.memory, &config.balloon)?;
+            simple_api_command(socket, "PUT", "resize", Some(&resize)).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::ResizeZone(ref config) => {
+            let resize_zone = resize_zone_config(&config.id, &config.size)?;
+            simple_api_command(socket, "PUT", "resize-zone", Some(&resize_zone))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::AddDevice(ref config) => {
+            let device_config = add_device_config(&config.device_config)?;
+            simple_api_command(socket, "PUT", "add-device", Some(&device_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::RemoveDevice(ref config) => {
+            let remove_device_data = remove_device_config(&config.device_config);
+            simple_api_command(socket, "PUT", "remove-device", Some(&remove_device_data))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::AddDisk(ref config) => {
+            let disk_config = add_disk_config(&config.disk_config)?;
+            simple_api_command(socket, "PUT", "add-disk", Some(&disk_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::AddFs(ref config) => {
+            let fs_config = add_fs_config(&config.fs_config)?;
+            simple_api_command(socket, "PUT", "add-fs", Some(&fs_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::AddPmem(ref config) => {
+            let pmem_config = add_pmem_config(&config.pmem_config)?;
+            simple_api_command(socket, "PUT", "add-pmem", Some(&pmem_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::AddNet(ref config) => {
+            let (net_config, fds) = add_net_config(&config.net_config)?;
+            simple_api_command_with_fds(socket, "PUT", "add-net", Some(&net_config), fds)
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::AddUserDevice(ref config) => {
+            let device_config = add_user_device_config(&config.device_config)?;
+            simple_api_command(socket, "PUT", "add-user-device", Some(&device_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::AddVdpa(ref config) => {
+            let vdpa_config = add_vdpa_config(&config.vdpa_config)?;
+            simple_api_command(socket, "PUT", "add-vdpa", Some(&vdpa_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::AddVsock(ref config) => {
+            let vsock_config = add_vsock_config(&config.vsock_config)?;
+            simple_api_command(socket, "PUT", "add-vsock", Some(&vsock_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Snapshot(ref config) => {
+            let snapshot_config = snapshot_api_config(&config.snapshot_config);
+            simple_api_command(socket, "PUT", "snapshot", Some(&snapshot_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Restore(ref config) => {
+            let restore_config = restore_config(&config.restore_config)?;
+            simple_api_command(socket, "PUT", "restore", Some(&restore_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Coredump(ref config) => {
+            let coredump_config = coredump_config(&config.coredump_config);
+            simple_api_command(socket, "PUT", "coredump", Some(&coredump_config))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::SendMigration(ref config) => {
+            let send_migration_data =
+                send_migration_data(&config.send_migration_config, config.send_migration_local);
+            simple_api_command(socket, "PUT", "send-migration", Some(&send_migration_data))
+                .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::ReceiveMigration(ref config) => {
+            let receive_migration_data = receive_migration_data(&config.receive_migration_config);
+            simple_api_command(
+                socket,
+                "PUT",
+                "receive-migration",
+                Some(&receive_migration_data),
+            )
+            .map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Create(ref config) => {
+            let data = create_data(&config.vm_config)?;
+            simple_api_command(socket, "PUT", "create", Some(&data)).map_err(Error::HttpApiClient)
+        }
+        SubCommandEnum::Version(_) => {
+            // Already handled outside of this function
+            panic!()
+        }
+    }
+}
+
+#[cfg(feature = "dbus_api")]
+fn dbus_api_do_command(toplevel: &TopLevel, proxy: &mut DBusApi1ProxyBlocking<'_>) -> ApiResult {
+    match toplevel.command {
+        SubCommandEnum::Boot(_) => proxy.api_vm_boot(),
+        SubCommandEnum::Delete(_) => proxy.api_vm_delete(),
+        SubCommandEnum::ShutdownVmm(_) => proxy.api_vmm_shutdown(),
+        SubCommandEnum::Resume(_) => proxy.api_vm_resume(),
+        SubCommandEnum::PowerButton(_) => proxy.api_vm_power_button(),
+        SubCommandEnum::Reboot(_) => proxy.api_vm_reboot(),
+        SubCommandEnum::Pause(_) => proxy.api_vm_pause(),
+        SubCommandEnum::Info(_) => proxy.api_vm_info(),
+        SubCommandEnum::Counters(_) => proxy.api_vm_counters(),
+        SubCommandEnum::Ping(_) => proxy.api_vmm_ping(),
+        SubCommandEnum::Shutdown(_) => proxy.api_vm_shutdown(),
+        SubCommandEnum::Resize(ref config) => {
+            let resize = resize_config(config.cpus, &config.memory, &config.balloon)?;
+            proxy.api_vm_resize(&resize)
+        }
+        SubCommandEnum::ResizeZone(ref config) => {
+            let resize_zone = resize_zone_config(&config.id, &config.size)?;
+            proxy.api_vm_resize_zone(&resize_zone)
+        }
+        SubCommandEnum::AddDevice(ref config) => {
+            let device_config = add_device_config(&config.device_config)?;
+            proxy.api_vm_add_device(&device_config)
+        }
+        SubCommandEnum::RemoveDevice(ref config) => {
+            let remove_device_data = remove_device_config(&config.device_config);
+            proxy.api_vm_remove_device(&remove_device_data)
+        }
+        SubCommandEnum::AddDisk(ref config) => {
+            let disk_config = add_disk_config(&config.disk_config)?;
+            proxy.api_vm_add_disk(&disk_config)
+        }
+        SubCommandEnum::AddFs(ref config) => {
+            let fs_config = add_fs_config(&config.fs_config)?;
+            proxy.api_vm_add_fs(&fs_config)
+        }
+        SubCommandEnum::AddPmem(ref config) => {
+            let pmem_config = add_pmem_config(&config.pmem_config)?;
+            proxy.api_vm_add_pmem(&pmem_config)
+        }
+        SubCommandEnum::AddNet(ref config) => {
+            let (net_config, _fds) = add_net_config(&config.net_config)?;
+            proxy.api_vm_add_net(&net_config)
+        }
+        SubCommandEnum::AddUserDevice(ref config) => {
+            let device_config = add_user_device_config(&config.device_config)?;
+            proxy.api_vm_add_user_device(&device_config)
+        }
+        SubCommandEnum::AddVdpa(ref config) => {
+            let vdpa_config = add_vdpa_config(&config.vdpa_config)?;
+            proxy.api_vm_add_vdpa(&vdpa_config)
+        }
+        SubCommandEnum::AddVsock(ref config) => {
+            let vsock_config = add_vsock_config(&config.vsock_config)?;
+            proxy.api_vm_add_vsock(&vsock_config)
+        }
+        SubCommandEnum::Snapshot(ref config) => {
+            let snapshot_config = snapshot_api_config(&config.snapshot_config);
+            proxy.api_vm_snapshot(&snapshot_config)
+        }
+        SubCommandEnum::Restore(ref config) => {
+            let restore_config = restore_config(&config.restore_config)?;
+            proxy.api_vm_restore(&restore_config)
+        }
+        SubCommandEnum::Coredump(ref config) => {
+            let coredump_config = coredump_config(&config.coredump_config);
+            proxy.api_vm_coredump(&coredump_config)
+        }
+        SubCommandEnum::SendMigration(ref config) => {
+            let send_migration_data =
+                send_migration_data(&config.send_migration_config, config.send_migration_local);
+            proxy.api_vm_send_migration(&send_migration_data)
+        }
+        SubCommandEnum::ReceiveMigration(ref config) => {
+            let receive_migration_data = receive_migration_data(&config.receive_migration_config);
+            proxy.api_vm_receive_migration(&receive_migration_data)
+        }
+        SubCommandEnum::Create(ref config) => {
+            let data = create_data(&config.vm_config)?;
+            proxy.api_vm_create(&data)
+        }
+        SubCommandEnum::Version(_) => {
+            // Already handled outside of this function
+            panic!()
+        }
+    }
+}
+fn resize_config(
     desired_vcpus: Option<u8>,
     memory: &Option<String>,
     balloon: &Option<String>,
-) -> Result<(), Error> {
+) -> Result<String, Error> {
     let desired_ram: Option<u64> = if let Some(memory) = memory {
         Some(
             memory
@@ -90,16 +515,10 @@ fn resize_api_command(
         desired_balloon,
     };
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "resize",
-        Some(&serde_json::to_string(&resize).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(serde_json::to_string(&resize).unwrap())
 }
 
-fn resize_zone_api_command(socket: &mut UnixStream, id: &str, size: &str) -> Result<(), Error> {
+fn resize_zone_config(id: &str, size: &str) -> Result<String, Error> {
     let resize_zone = vmm::api::VmResizeZoneData {
         id: id.to_owned(),
         desired_ram: size
@@ -108,89 +527,52 @@ fn resize_zone_api_command(socket: &mut UnixStream, id: &str, size: &str) -> Res
             .0,
     };
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "resize-zone",
-        Some(&serde_json::to_string(&resize_zone).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(serde_json::to_string(&resize_zone).unwrap())
 }
 
-fn add_device_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Error> {
+fn add_device_config(config: &str) -> Result<String, Error> {
     let device_config = vmm::config::DeviceConfig::parse(config).map_err(Error::AddDeviceConfig)?;
+    let device_config = serde_json::to_string(&device_config).unwrap();
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "add-device",
-        Some(&serde_json::to_string(&device_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(device_config)
 }
 
-fn add_user_device_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Error> {
+fn add_user_device_config(config: &str) -> Result<String, Error> {
     let device_config =
         vmm::config::UserDeviceConfig::parse(config).map_err(Error::AddUserDeviceConfig)?;
+    let device_config = serde_json::to_string(&device_config).unwrap();
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "add-user-device",
-        Some(&serde_json::to_string(&device_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(device_config)
 }
 
-fn remove_device_api_command(socket: &mut UnixStream, id: &str) -> Result<(), Error> {
+fn remove_device_config(id: &str) -> String {
     let remove_device_data = vmm::api::VmRemoveDeviceData { id: id.to_owned() };
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "remove-device",
-        Some(&serde_json::to_string(&remove_device_data).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    serde_json::to_string(&remove_device_data).unwrap()
 }
 
-fn add_disk_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Error> {
+fn add_disk_config(config: &str) -> Result<String, Error> {
     let disk_config = vmm::config::DiskConfig::parse(config).map_err(Error::AddDiskConfig)?;
+    let disk_config = serde_json::to_string(&disk_config).unwrap();
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "add-disk",
-        Some(&serde_json::to_string(&disk_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(disk_config)
 }
 
-fn add_fs_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Error> {
+fn add_fs_config(config: &str) -> Result<String, Error> {
     let fs_config = vmm::config::FsConfig::parse(config).map_err(Error::AddFsConfig)?;
+    let fs_config = serde_json::to_string(&fs_config).unwrap();
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "add-fs",
-        Some(&serde_json::to_string(&fs_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(fs_config)
 }
 
-fn add_pmem_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Error> {
+fn add_pmem_config(config: &str) -> Result<String, Error> {
     let pmem_config = vmm::config::PmemConfig::parse(config).map_err(Error::AddPmemConfig)?;
+    let pmem_config = serde_json::to_string(&pmem_config).unwrap();
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "add-pmem",
-        Some(&serde_json::to_string(&pmem_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(pmem_config)
 }
 
-fn add_net_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Error> {
+fn add_net_config(config: &str) -> Result<(String, Vec<i32>), Error> {
     let mut net_config = vmm::config::NetConfig::parse(config).map_err(Error::AddNetConfig)?;
 
     // NetConfig is modified on purpose here by taking the list of file
@@ -198,113 +580,66 @@ fn add_net_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Erro
     // process would not make any sense since the file descriptor may be
     // represented with different values.
     let fds = net_config.fds.take().unwrap_or_default();
+    let net_config = serde_json::to_string(&net_config).unwrap();
 
-    simple_api_command_with_fds(
-        socket,
-        "PUT",
-        "add-net",
-        Some(&serde_json::to_string(&net_config).unwrap()),
-        fds,
-    )
-    .map_err(Error::ApiClient)
+    Ok((net_config, fds))
 }
 
-fn add_vdpa_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Error> {
+fn add_vdpa_config(config: &str) -> Result<String, Error> {
     let vdpa_config = vmm::config::VdpaConfig::parse(config).map_err(Error::AddVdpaConfig)?;
+    let vdpa_config = serde_json::to_string(&vdpa_config).unwrap();
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "add-vdpa",
-        Some(&serde_json::to_string(&vdpa_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(vdpa_config)
 }
 
-fn add_vsock_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Error> {
+fn add_vsock_config(config: &str) -> Result<String, Error> {
     let vsock_config = vmm::config::VsockConfig::parse(config).map_err(Error::AddVsockConfig)?;
+    let vsock_config = serde_json::to_string(&vsock_config).unwrap();
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "add-vsock",
-        Some(&serde_json::to_string(&vsock_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(vsock_config)
 }
 
-fn snapshot_api_command(socket: &mut UnixStream, url: &str) -> Result<(), Error> {
+fn snapshot_api_config(url: &str) -> String {
     let snapshot_config = vmm::api::VmSnapshotConfig {
         destination_url: String::from(url),
     };
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "snapshot",
-        Some(&serde_json::to_string(&snapshot_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    serde_json::to_string(&snapshot_config).unwrap()
 }
 
-fn restore_api_command(socket: &mut UnixStream, config: &str) -> Result<(), Error> {
+fn restore_config(config: &str) -> Result<String, Error> {
     let restore_config = vmm::config::RestoreConfig::parse(config).map_err(Error::Restore)?;
+    let restore_config = serde_json::to_string(&restore_config).unwrap();
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "restore",
-        Some(&serde_json::to_string(&restore_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    Ok(restore_config)
 }
 
-fn coredump_api_command(socket: &mut UnixStream, destination_url: &str) -> Result<(), Error> {
+fn coredump_config(destination_url: &str) -> String {
     let coredump_config = vmm::api::VmCoredumpData {
         destination_url: String::from(destination_url),
     };
 
-    simple_api_command(
-        socket,
-        "PUT",
-        "coredump",
-        Some(&serde_json::to_string(&coredump_config).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+    serde_json::to_string(&coredump_config).unwrap()
 }
 
-fn receive_migration_api_command(socket: &mut UnixStream, url: &str) -> Result<(), Error> {
+fn receive_migration_data(url: &str) -> String {
     let receive_migration_data = vmm::api::VmReceiveMigrationData {
         receiver_url: url.to_owned(),
     };
-    simple_api_command(
-        socket,
-        "PUT",
-        "receive-migration",
-        Some(&serde_json::to_string(&receive_migration_data).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+
+    serde_json::to_string(&receive_migration_data).unwrap()
 }
 
-fn send_migration_api_command(
-    socket: &mut UnixStream,
-    url: &str,
-    local: bool,
-) -> Result<(), Error> {
+fn send_migration_data(url: &str, local: bool) -> String {
     let send_migration_data = vmm::api::VmSendMigrationData {
         destination_url: url.to_owned(),
         local,
     };
-    simple_api_command(
-        socket,
-        "PUT",
-        "send-migration",
-        Some(&serde_json::to_string(&send_migration_data).unwrap()),
-    )
-    .map_err(Error::ApiClient)
+
+    serde_json::to_string(&send_migration_data).unwrap()
 }
 
-fn create_api_command(socket: &mut UnixStream, path: &str) -> Result<(), Error> {
+fn create_data(path: &str) -> Result<String, Error> {
     let mut data = String::default();
     if path == "-" {
         std::io::stdin()
@@ -314,100 +649,7 @@ fn create_api_command(socket: &mut UnixStream, path: &str) -> Result<(), Error>
         data = std::fs::read_to_string(path).map_err(Error::ReadingFile)?;
     }
 
-    simple_api_command(socket, "PUT", "create", Some(&data)).map_err(Error::ApiClient)
-}
-
-fn do_command(toplevel: &TopLevel) -> Result<(), Error> {
-    let mut socket =
-        UnixStream::connect(toplevel.api_socket.as_deref().unwrap()).map_err(Error::Connect)?;
-
-    match toplevel.command {
-        SubCommandEnum::Boot(_) => {
-            simple_api_command(&mut socket, "PUT", "boot", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::Delete(_) => {
-            simple_api_command(&mut socket, "PUT", "delete", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::ShutdownVmm(_) => {
-            simple_api_full_command(&mut socket, "PUT", "vmm.shutdown", None)
-                .map_err(Error::ApiClient)
-        }
-        SubCommandEnum::Resume(_) => {
-            simple_api_command(&mut socket, "PUT", "resume", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::PowerButton(_) => {
-            simple_api_command(&mut socket, "PUT", "power-button", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::Reboot(_) => {
-            simple_api_command(&mut socket, "PUT", "reboot", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::Pause(_) => {
-            simple_api_command(&mut socket, "PUT", "pause", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::Info(_) => {
-            simple_api_command(&mut socket, "GET", "info", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::Counters(_) => {
-            simple_api_command(&mut socket, "GET", "counters", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::Ping(_) => {
-            simple_api_full_command(&mut socket, "GET", "vmm.ping", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::Shutdown(_) => {
-            simple_api_command(&mut socket, "PUT", "shutdown", None).map_err(Error::ApiClient)
-        }
-        SubCommandEnum::Resize(ref config) => {
-            resize_api_command(&mut socket, config.cpus, &config.memory, &config.balloon)
-        }
-        SubCommandEnum::ResizeZone(ref config) => {
-            resize_zone_api_command(&mut socket, &config.id, &config.size)
-        }
-        SubCommandEnum::AddDevice(ref config) => {
-            add_device_api_command(&mut socket, &config.device_config)
-        }
-        SubCommandEnum::RemoveDevice(ref config) => {
-            remove_device_api_command(&mut socket, &config.device_config)
-        }
-        SubCommandEnum::AddDisk(ref config) => {
-            add_disk_api_command(&mut socket, &config.disk_config)
-        }
-        SubCommandEnum::AddFs(ref config) => add_fs_api_command(&mut socket, &config.fs_config),
-        SubCommandEnum::AddPmem(ref config) => {
-            add_pmem_api_command(&mut socket, &config.pmem_config)
-        }
-        SubCommandEnum::AddNet(ref config) => add_net_api_command(&mut socket, &config.net_config),
-        SubCommandEnum::AddUserDevice(ref config) => {
-            add_user_device_api_command(&mut socket, &config.device_config)
-        }
-        SubCommandEnum::AddVdpa(ref config) => {
-            add_vdpa_api_command(&mut socket, &config.vdpa_config)
-        }
-        SubCommandEnum::AddVsock(ref config) => {
-            add_vsock_api_command(&mut socket, &config.vsock_config)
-        }
-        SubCommandEnum::Snapshot(ref config) => {
-            snapshot_api_command(&mut socket, &config.snapshot_config)
-        }
-        SubCommandEnum::Restore(ref config) => {
-            restore_api_command(&mut socket, &config.restore_config)
-        }
-        SubCommandEnum::Coredump(ref config) => {
-            coredump_api_command(&mut socket, &config.coredump_config)
-        }
-        SubCommandEnum::SendMigration(ref config) => send_migration_api_command(
-            &mut socket,
-            &config.send_migration_config,
-            config.send_migration_local,
-        ),
-        SubCommandEnum::ReceiveMigration(ref config) => {
-            receive_migration_api_command(&mut socket, &config.receive_migration_config)
-        }
-        SubCommandEnum::Create(ref config) => create_api_command(&mut socket, &config.vm_config),
-        SubCommandEnum::Version(_) => {
-            // Already handled outside of this function
-            panic!()
-        }
-    }
+    Ok(data)
 }
 
 #[derive(FromArgs, PartialEq, Debug)]
@@ -419,6 +661,21 @@ struct TopLevel {
     #[argh(option, long = "api-socket")]
     /// HTTP API socket path (UNIX domain socket)
     api_socket: Option<String>,
+
+    #[cfg(feature = "dbus_api")]
+    #[argh(option, long = "dbus-service-name")]
+    /// well known name of the dbus service
+    dbus_name: Option<String>,
+
+    #[cfg(feature = "dbus_api")]
+    #[argh(option, long = "dbus-object-path")]
+    /// object path which the interface is being served at
+    dbus_path: Option<String>,
+
+    #[cfg(feature = "dbus_api")]
+    #[argh(switch, long = "dbus-system-bus")]
+    /// use the system bus instead of a session bus
+    dbus_system_bus: bool,
 }
 
 #[derive(FromArgs, PartialEq, Debug)]
@@ -688,16 +945,56 @@ fn main() {
     let toplevel: TopLevel = argh::from_env();
 
     if matches!(toplevel.command, SubCommandEnum::Version(_)) {
-        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILT_VERSION"));
+        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILD_VERSION"));
         return;
     }
 
-    if toplevel.api_socket.is_none() {
-        println!("Please specify --api-socket");
-        process::exit(1)
-    }
+    let mut target_api = match (
+        &toplevel.api_socket,
+        #[cfg(feature = "dbus_api")]
+        &toplevel.dbus_name,
+        #[cfg(feature = "dbus_api")]
+        &toplevel.dbus_path,
+    ) {
+        #[cfg(not(feature = "dbus_api"))]
+        (Some(ref api_socket),) => TargetApi::HttpApi(
+            UnixStream::connect(api_socket).unwrap_or_else(|e| {
+                eprintln!("Error opening HTTP socket: {e}");
+                process::exit(1)
+            }),
+            PhantomData,
+        ),
+        #[cfg(feature = "dbus_api")]
+        (Some(ref api_socket), None, None) => TargetApi::HttpApi(
+            UnixStream::connect(api_socket).unwrap_or_else(|e| {
+                eprintln!("Error opening HTTP socket: {e}");
+                process::exit(1)
+            }),
+            PhantomData,
+        ),
+        #[cfg(feature = "dbus_api")]
+        (None, Some(ref dbus_name), Some(ref dbus_path)) => TargetApi::DBusApi(
+            DBusApi1ProxyBlocking::new_connection(dbus_name, dbus_path, toplevel.dbus_system_bus)
+                .map_err(Error::DBusApiClient)
+                .unwrap_or_else(|e| {
+                    eprintln!("Error creating D-Bus proxy: {e}");
+                    process::exit(1)
+                }),
+        ),
+        #[cfg(feature = "dbus_api")]
+        (Some(_), Some(_) | None, Some(_) | None) => {
+            println!(
+                "`api-socket` and (dbus-service-name or dbus-object-path) are mutually exclusive"
+            );
+            process::exit(1);
+        }
+        _ => {
+            println!("Please either provide the api-socket option or dbus-service-name and dbus-object-path options");
+            process::exit(1);
+        }
+    };
 
-    if let Err(e) = do_command(&toplevel) {
+    if let Err(e) = target_api.do_command(&toplevel) {
         eprintln!("Error running command: {e}");
         process::exit(1)
     };

src/main.rs

@@ -8,7 +8,7 @@ extern crate event_monitor;
 
 use argh::FromArgs;
 use libc::EFD_NONBLOCK;
-use log::LevelFilter;
+use log::{warn, LevelFilter};
 use option_parser::OptionParser;
 use seccompiler::SeccompAction;
 use signal_hook::consts::SIGSYS;
@@ -18,6 +18,8 @@ use std::os::unix::io::{FromRawFd, RawFd};
 use std::sync::mpsc::channel;
 use std::sync::{Arc, Mutex};
 use thiserror::Error;
+#[cfg(feature = "dbus_api")]
+use vmm::api::dbus::{dbus_api_graceful_shutdown, DBusApiOptions};
 use vmm::config;
 use vmm_sys_util::eventfd::EventFd;
 use vmm_sys_util::signal::block_signal;
@@ -33,6 +35,8 @@ enum Error {
     #[cfg(feature = "guest_debug")]
     #[error("Failed to create Debug EventFd: {0}")]
     CreateDebugEventFd(#[source] std::io::Error),
+    #[error("Failed to create exit EventFd: {0}")]
+    CreateExitEventFd(#[source] std::io::Error),
     #[error("Failed to open hypervisor interface (is hypervisor interface available?): {0}")]
     CreateHypervisor(#[source] hypervisor::HypervisorError),
     #[error("Failed to start the VMM thread: {0}")]
@@ -55,6 +59,12 @@ enum Error {
     ParsingApiSocket(std::num::ParseIntError),
     #[error("Error parsing --event-monitor: {0}")]
     ParsingEventMonitor(option_parser::OptionParserError),
+    #[cfg(feature = "dbus_api")]
+    #[error("`--dbus-object-path` option isn't provided")]
+    MissingDBusObjectPath,
+    #[cfg(feature = "dbus_api")]
+    #[error("`--dbus-service-name` option isn't provided")]
+    MissingDBusServiceName,
     #[error("Error parsing --event-monitor: path or fd required")]
     BareEventMonitor,
     #[error("Error doing event monitor I/O: {0}")]
@@ -90,9 +100,9 @@ impl log::Log for Logger {
         let duration = now.duration_since(self.start);
 
         if record.file().is_some() && record.line().is_some() {
-            writeln!(
+            write!(
                 *(*(self.output.lock().unwrap())),
-                "cloud-hypervisor: {:.6?}: <{}> {}:{}:{} -- {}",
+                "cloud-hypervisor: {:.6?}: <{}> {}:{}:{} -- {}\r\n",
                 duration,
                 std::thread::current().name().unwrap_or("anonymous"),
                 record.level(),
@@ -101,9 +111,9 @@ impl log::Log for Logger {
                 record.args()
             )
         } else {
-            writeln!(
+            write!(
                 *(*(self.output.lock().unwrap())),
-                "cloud-hypervisor: {:.6?}: <{}> {}:{} -- {}",
+                "cloud-hypervisor: {:.6?}: <{}> {}:{} -- {}\r\n",
                 duration,
                 std::thread::current().name().unwrap_or("anonymous"),
                 record.level(),
@@ -136,19 +146,19 @@ fn default_rng() -> String {
 /// Launch a cloud-hypervisor VMM.
 pub struct TopLevel {
     #[argh(option, long = "cpus", default = "default_vcpus()")]
-    /// boot=<boot_vcpus>,max=<max_vcpus>,topology=<threads_per_core>:<cores_per_die>:<dies_per_package>:<packages>,kvm_hyperv=on|off,max_phys_bits=<maximum_number_of_physical_bits>,affinity=<list_of_vcpus_with_their_associated_cpuset>,features=<list_of_features_to_enable>
+    /// boot=<boot_vcpus>, max=<max_vcpus>, topology=<threads_per_core>:<cores_per_die>:<dies_per_package>:<packages>, kvm_hyperv=on|off, max_phys_bits=<maximum_number_of_physical_bits>, affinity=<list_of_vcpus_with_their_associated_cpuset>, features=<list_of_features_to_enable>
     cpus: String,
 
     #[argh(option, long = "platform")]
-    /// num_pci_segments=<num_pci_segments>,iommu_segments=<list_of_segments>,serial_number=<dmi_device_serial_number>,uuid=<dmi_device_uuid>,oem_strings=<list_of_strings>
+    /// num_pci_segments=<num_pci_segments>, iommu_segments=<list_of_segments>, serial_number=<dmi_device_serial_number>, uuid=<dmi_device_uuid>, oem_strings=<list_of_strings>
     platform: Option<String>,
 
     #[argh(option, long = "memory", default = "default_memory()")]
-    /// size=<guest_memory_size>,mergeable=on|off,shared=on|off,hugepages=on|off,hugepage_size=<hugepage_size>,hotplug_method=acpi|virtio-mem,hotplug_size=<hotpluggable_memory_size>,hotplugged_size=<hotplugged_memory_size>,prefault=on|off,thp=on|off
+    /// size=<guest_memory_size>, mergeable=on|off, shared=on|off, hugepages=on|off, hugepage_size=<hugepage_size>, hotplug_method=acpi|virtio-mem, hotplug_size=<hotpluggable_memory_size>, hotplugged_size=<hotplugged_memory_size>, prefault=on|off, thp=on|off
     memory: String,
 
     #[argh(option, long = "memory-zone")]
-    /// size=<guest_memory_region_size>,file=<backing_file>,shared=on|off,hugepages=on|off,hugepage_size=<hugepage_size>,host_numa_node=<node_id>,id=<zone_identifier>,hotplug_size=<hotpluggable_memory_size>,hotplugged_size=<hotplugged_memory_size>,prefault=on|off
+    /// size=<guest_memory_region_size>, file=<backing_file>, shared=on|off, hugepages=on|off, hugepage_size=<hugepage_size>, host_numa_node=<node_id>, id=<zone_identifier>, hotplug_size=<hotpluggable_memory_size>, hotplugged_size=<hotplugged_memory_size>, prefault=on|off
     memory_zone: Vec<String>,
 
     #[argh(option, long = "firmware")]
@@ -168,27 +178,27 @@ pub struct TopLevel {
     cmdline: Option<String>,
 
     #[argh(option, long = "disk")]
-    /// path=<disk_image_path>,readonly=on|off,direct=on|off,iommu=on|off,num_queues=<number_of_queues>,queue_size=<size_of_each_queue>,vhost_user=on|off,socket=<vhost_user_socket_path>,bw_size=<bytes>,bw_one_time_burst=<bytes>,bw_refill_time=<ms>,ops_size=<io_ops>,ops_one_time_burst=<io_ops>,ops_refill_time=<ms>,id=<device_id>,pci_segment=<segment_id>
+    /// path=<disk_image_path>, readonly=on|off, direct=on|off, iommu=on|off, num_queues=<number_of_queues>, queue_size=<size_of_each_queue>, vhost_user=on|off, socket=<vhost_user_socket_path>, bw_size=<bytes>, bw_one_time_burst=<bytes>, bw_refill_time=<ms>, ops_size=<io_ops>, ops_one_time_burst=<io_ops>, ops_refill_time=<ms>, id=<device_id>, pci_segment=<segment_id>
     disk: Vec<String>,
 
     #[argh(option, long = "net")]
-    /// tap=<if_name>,ip=<ip_addr>,mask=<net_mask>,mac=<mac_addr>,fd=<fd1,fd2...>,iommu=on|off,num_queues=<number_of_queues>,queue_size=<size_of_each_queue>,id=<device_id>,vhost_user=<vhost_user_enable>,socket=<vhost_user_socket_path>,vhost_mode=client|server,bw_size=<bytes>,bw_one_time_burst=<bytes>,bw_refill_time=<ms>,ops_size=<io_ops>,ops_one_time_burst=<io_ops>,ops_refill_time=<ms>,pci_segment=<segment_id>offload_tso=on|off,offload_ufo=on|off,offload_csum=on|off
+    /// tap=<if_name>, ip=<ip_addr>, mask=<net_mask>, mac=<mac_addr>, fd=<fd1,fd2...>, iommu=on|off, num_queues=<number_of_queues>, queue_size=<size_of_each_queue>, id=<device_id>, vhost_user=<vhost_user_enable>, socket=<vhost_user_socket_path>, vhost_mode=client|server, bw_size=<bytes>, bw_one_time_burst=<bytes>, bw_refill_time=<ms>, ops_size=<io_ops>, ops_one_time_burst=<io_ops>, ops_refill_time=<ms>, pci_segment=<segment_id>offload_tso=on|off, offload_ufo=on|off, offload_csum=on|off
     net: Vec<String>,
 
     #[argh(option, long = "rng", default = "default_rng()")]
-    /// src=<entropy_source_path>,iommu=on|off
+    /// src=<entropy_source_path>, iommu=on|off
     rng: String,
 
     #[argh(option, long = "balloon")]
-    /// size=<balloon_size>,deflate_on_oom=on|off,free_page_reporting=on|off
+    /// size=<balloon_size>, deflate_on_oom=on|off, free_page_reporting=on|off
     balloon: Option<String>,
 
     #[argh(option, long = "fs")]
-    /// tag=<tag_name>,socket=<socket_path>,num_queues=<number_of_queues>,queue_size=<size_of_each_queue>,id=<device_id>,pci_segment=<segment_id>
+    /// tag=<tag_name>, socket=<socket_path>, num_queues=<number_of_queues>, queue_size=<size_of_each_queue>, id=<device_id>, pci_segment=<segment_id>
     fs: Vec<String>,
 
     #[argh(option, long = "pmem")]
-    /// file=<backing_file_path>,size=<persistent_memory_size>,iommu=on|off,discard_writes=on|off,id=<device_id>,pci_segment=<segment_id>
+    /// file=<backing_file_path>, size=<persistent_memory_size>, iommu=on|off, discard_writes=on|off, id=<device_id>, pci_segment=<segment_id>
     pmem: Vec<String>,
 
     #[argh(option, long = "serial", default = "String::from(\"null\")")]
@@ -196,27 +206,27 @@ pub struct TopLevel {
     serial: String,
 
     #[argh(option, long = "console", default = "String::from(\"tty\")")]
-    /// off|null|pty|tty|file=/path/to/a/file,iommu=on|off
+    /// off|null|pty|tty|file=/path/to/a/file, iommu=on|off
     console: String,
 
     #[argh(option, long = "device")]
-    /// path=<device_path>,iommu=on|off,id=<device_id>,pci_segment=<segment_id>
+    /// path=<device_path>, iommu=on|off, id=<device_id>, pci_segment=<segment_id>
     device: Vec<String>,
 
     #[argh(option, long = "user-device")]
-    /// socket=<socket_path>,id=<device_id>,pci_segment=<segment_id>
+    /// socket=<socket_path>, id=<device_id>, pci_segment=<segment_id>
     user_device: Vec<String>,
 
     #[argh(option, long = "vdpa")]
-    /// path=<device_path>,num_queues=<number_of_queues>,iommu=on|off,id=<device_id>,pci_segment=<segment_id>
+    /// path=<device_path>, num_queues=<number_of_queues>, iommu=on|off, id=<device_id>, pci_segment=<segment_id>
     vdpa: Vec<String>,
 
     #[argh(option, long = "vsock")]
-    /// cid=<context_id>,socket=<socket_path>,iommu=on|off,id=<device_id>,pci_segment=<segment_id>
+    /// cid=<context_id>, socket=<socket_path>, iommu=on|off, id=<device_id>, pci_segment=<segment_id>
     vsock: Option<String>,
 
     #[argh(option, long = "numa")]
-    /// guest_numa_id=<node_id>,cpus=<cpus_id>,distances=<list_of_distances_to_destination_nodes>,memory_zones=<list_of_memory_zones>,sgx_epc_sections=<list_of_sgx_epc_sections>
+    /// guest_numa_id=<node_id>, cpus=<cpus_id>, distances=<list_of_distances_to_destination_nodes>, memory_zones=<list_of_memory_zones>, sgx_epc_sections=<list_of_sgx_epc_sections>
     numa: Vec<String>,
 
     #[argh(switch, long = "watchdog")]
@@ -235,12 +245,27 @@ pub struct TopLevel {
     /// path=<path/to/a/file>|fd=<fd>
     api_socket: Option<String>,
 
+    #[cfg(feature = "dbus_api")]
+    #[argh(option, long = "dbus-service-name")]
+    /// well known name of the service
+    dbus_name: Option<String>,
+
+    #[cfg(feature = "dbus_api")]
+    #[argh(option, long = "dbus-object-path")]
+    /// object path to serve the dbus interface
+    dbus_path: Option<String>,
+
+    #[cfg(feature = "dbus_api")]
+    #[argh(switch, long = "dbus-system-bus")]
+    /// use the system bus instead of a session bus
+    dbus_system_bus: bool,
+
     #[argh(option, long = "event-monitor")]
     /// path=<path/to/a/file>|fd=<fd>
     event_monitor: Option<String>,
 
     #[argh(option, long = "restore")]
-    /// source_url=<source_url>,prefault=on|off
+    /// source_url=<source_url>, prefault=on|off
     restore: Option<String>,
 
     #[argh(option, long = "seccomp", default = "String::from(\"true\")")]
@@ -253,7 +278,7 @@ pub struct TopLevel {
 
     #[cfg(target_arch = "x86_64")]
     #[argh(option, long = "sgx-epc")]
-    /// id=<epc_section_identifier>,size=<epc_section_size>,prefault=on|off
+    /// id=<epc_section_identifier>, size=<epc_section_size>, prefault=on|off
     sgx_epc: Vec<String>,
 
     #[cfg(feature = "guest_debug")]
@@ -414,6 +439,18 @@ fn start_vmm(toplevel: TopLevel) -> Result<Option<String>, Error> {
         (None, None)
     };
 
+    #[cfg(feature = "dbus_api")]
+    let dbus_options = match (&toplevel.dbus_name, &toplevel.dbus_path) {
+        (Some(ref name), Some(ref path)) => Ok(Some(DBusApiOptions {
+            service_name: name.to_owned(),
+            object_path: path.to_owned(),
+            system_bus: toplevel.dbus_system_bus,
+        })),
+        (Some(_), None) => Err(Error::MissingDBusObjectPath),
+        (None, Some(_)) => Err(Error::MissingDBusServiceName),
+        (None, None) => Ok(None),
+    }?;
+
     if let Some(ref monitor_config) = toplevel.event_monitor {
         let mut parser = OptionParser::new();
         parser.add("path").add("fd");
@@ -443,7 +480,7 @@ fn start_vmm(toplevel: TopLevel) -> Result<Option<String>, Error> {
     let (api_request_sender, api_request_receiver) = channel();
     let api_evt = EventFd::new(EFD_NONBLOCK).map_err(Error::CreateApiEventFd)?;
 
-    let http_sender = api_request_sender.clone();
+    let api_request_sender_clone = api_request_sender.clone();
     let seccomp_action = match &toplevel.seccomp as &str {
         "true" => SeccompAction::Trap,
         "false" => SeccompAction::Allow,
@@ -509,12 +546,16 @@ fn start_vmm(toplevel: TopLevel) -> Result<Option<String>, Error> {
     #[cfg(feature = "guest_debug")]
     let vm_debug_evt = EventFd::new(EFD_NONBLOCK).map_err(Error::CreateDebugEventFd)?;
 
-    let vmm_thread = vmm::start_vmm_thread(
-        env!("CARGO_PKG_VERSION").to_string(),
+    let exit_evt = EventFd::new(EFD_NONBLOCK).map_err(Error::CreateExitEventFd)?;
+
+    let vmm_thread_handle = vmm::start_vmm_thread(
+        vmm::VmmVersionInfo::new(env!("BUILD_VERSION"), env!("CARGO_PKG_VERSION")),
         &api_socket_path,
         api_socket_fd,
+        #[cfg(feature = "dbus_api")]
+        dbus_options,
         api_evt.try_clone().unwrap(),
-        http_sender,
+        api_request_sender_clone,
         api_request_receiver,
         #[cfg(feature = "guest_debug")]
         gdb_socket_path,
@@ -522,41 +563,60 @@ fn start_vmm(toplevel: TopLevel) -> Result<Option<String>, Error> {
         debug_evt.try_clone().unwrap(),
         #[cfg(feature = "guest_debug")]
         vm_debug_evt.try_clone().unwrap(),
+        exit_evt.try_clone().unwrap(),
         &seccomp_action,
         hypervisor,
     )
     .map_err(Error::StartVmmThread)?;
 
-    let payload_present = toplevel.kernel.is_some() || toplevel.firmware.is_some();
+    let r: Result<(), Error> = (|| {
+        let payload_present = toplevel.kernel.is_some() || toplevel.firmware.is_some();
 
-    if payload_present {
-        let vm_params = toplevel.to_vm_params();
-        let vm_config = config::VmConfig::parse(vm_params).map_err(Error::ParsingConfig)?;
+        if payload_present {
+            let vm_params = toplevel.to_vm_params();
+            let vm_config = config::VmConfig::parse(vm_params).map_err(Error::ParsingConfig)?;
 
-        // Create and boot the VM based off the VM config we just built.
-        let sender = api_request_sender.clone();
-        vmm::api::vm_create(
-            api_evt.try_clone().unwrap(),
-            api_request_sender,
-            Arc::new(Mutex::new(vm_config)),
-        )
-        .map_err(Error::VmCreate)?;
-        vmm::api::vm_boot(api_evt.try_clone().unwrap(), sender).map_err(Error::VmBoot)?;
-    } else if let Some(restore_params) = toplevel.restore {
-        vmm::api::vm_restore(
-            api_evt.try_clone().unwrap(),
-            api_request_sender,
-            Arc::new(config::RestoreConfig::parse(&restore_params).map_err(Error::ParsingRestore)?),
-        )
-        .map_err(Error::VmRestore)?;
+            // Create and boot the VM based off the VM config we just built.
+            let sender = api_request_sender.clone();
+            vmm::api::vm_create(
+                api_evt.try_clone().unwrap(),
+                api_request_sender,
+                Arc::new(Mutex::new(vm_config)),
+            )
+            .map_err(Error::VmCreate)?;
+            vmm::api::vm_boot(api_evt.try_clone().unwrap(), sender).map_err(Error::VmBoot)?;
+        } else if let Some(restore_params) = toplevel.restore {
+            vmm::api::vm_restore(
+                api_evt.try_clone().unwrap(),
+                api_request_sender,
+                Arc::new(
+                    config::RestoreConfig::parse(&restore_params).map_err(Error::ParsingRestore)?,
+                ),
+            )
+            .map_err(Error::VmRestore)?;
+        }
+
+        Ok(())
+    })();
+
+    if r.is_err() {
+        if let Err(e) = exit_evt.write(1) {
+            warn!("writing to exit EventFd: {e}");
+        }
     }
 
-    vmm_thread
+    vmm_thread_handle
+        .thread_handle
         .join()
         .map_err(Error::ThreadJoin)?
         .map_err(Error::VmmThread)?;
 
-    Ok(api_socket_path)
+    #[cfg(feature = "dbus_api")]
+    if let Some(chs) = vmm_thread_handle.dbus_shutdown_chs {
+        dbus_api_graceful_shutdown(chs);
+    }
+
+    r.map(|_| api_socket_path)
 }
 
 fn main() {
@@ -570,7 +630,7 @@ fn main() {
     let toplevel: TopLevel = argh::from_env();
 
     if toplevel.version {
-        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILT_VERSION"));
+        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILD_VERSION"));
         return;
     }
 

test_data/cloud-init/ubuntu/local/meta-data

@@ -0,0 +1,2 @@
+instance-id: cloud
+local-hostname: cloud

test_data/cloud-init/ubuntu/local/network-config

@@ -0,0 +1,7 @@
+version: 2
+ethernets:
+  ens4:
+    match:
+       macaddress: 12:34:56:78:90:ab
+    addresses: [192.168.249.2/24]
+    gateway4: 192.168.249.1

test_data/cloud-init/ubuntu/local/user-data

@@ -0,0 +1,10 @@
+#cloud-config
+users:
+  - name: cloud
+    passwd: $6$7125787751a8d18a$sHwGySomUA1PawiNFWVCKYQN.Ec.Wzz0JtPPL1MvzFrkwmop2dq7.4CYf03A5oemPQ4pOFCCrtCelvFBEle/K.
+    sudo: ALL=(ALL) NOPASSWD:ALL
+    lock_passwd: False
+    inactive: False
+    shell: /bin/bash
+
+ssh_pwauth: True

test_infra/Cargo.toml

@@ -5,12 +5,12 @@ authors = ["The Cloud Hypervisor Authors"]
 edition = "2021"
 
 [dependencies]
-dirs = "4.0.0"
+dirs = "5.0.0"
 epoll = "4.3.1"
 libc = "0.2.139"
 once_cell = "1.17.1"
-serde = { version = "1.0.151", features = ["rc", "derive"] }
-serde_json = "1.0.93"
+serde = { version = "1.0.164", features = ["rc", "derive"] }
+serde_json = "1.0.96"
 ssh2 = { version = "0.9.4", features = ["vendored-openssl"] }
 vmm-sys-util = "0.11.0"
 wait-timeout = "0.2.0"

test_infra/src/lib.rs

@@ -249,7 +249,8 @@ impl DiskConfig for UbuntuDiskConfig {
             .unwrap()
             .join("test_data")
             .join("cloud-init")
-            .join("ubuntu");
+            .join("ubuntu")
+            .join("ci");
 
         vec!["meta-data"].iter().for_each(|x| {
             rate_limited_copy(source_file_dir.join(x), cloud_init_directory.join(x))
@@ -868,14 +869,6 @@ impl Guest {
             .map_err(Error::Parsing)
     }
 
-    #[cfg(target_arch = "x86_64")]
-    pub fn get_initial_apicid(&self) -> Result<u32, Error> {
-        self.ssh_command("grep \"initial apicid\" /proc/cpuinfo | grep -o \"[0-9]*\"")?
-            .trim()
-            .parse()
-            .map_err(Error::Parsing)
-    }
-
     pub fn get_total_memory(&self) -> Result<u32, Error> {
         self.ssh_command("grep MemTotal /proc/meminfo | grep -o \"[0-9]*\"")?
             .trim()
@@ -1352,6 +1345,7 @@ pub fn parse_iperf3_output(output: &[u8], sender: bool, bandwidth: bool) -> Resu
     })
 }
 
+#[derive(Clone)]
 pub enum FioOps {
     Read,
     RandomRead,

tests/integration.rs

@@ -30,6 +30,9 @@ use test_infra::*;
 use vmm_sys_util::{tempdir::TempDir, tempfile::TempFile};
 use wait_timeout::ChildExt;
 
+// Constant taken from the VMM crate.
+const MAX_NUM_PCI_SEGMENTS: u16 = 96;
+
 #[cfg(target_arch = "x86_64")]
 mod x86_64 {
     pub const FOCAL_IMAGE_NAME: &str = "focal-server-cloudimg-amd64-custom-20210609-0.raw";
@@ -70,6 +73,324 @@ const DIRECT_KERNEL_BOOT_CMDLINE: &str =
 
 const CONSOLE_TEST_STRING: &str = "Started OpenBSD Secure Shell server";
 
+// This enum exists to make it more convenient to
+// implement test for both D-Bus and REST APIs.
+enum TargetApi {
+    // API socket
+    HttpApi(String),
+    // well known service name, object path
+    DBusApi(String, String),
+}
+
+impl TargetApi {
+    fn new_http_api(tmp_dir: &TempDir) -> Self {
+        Self::HttpApi(temp_api_path(tmp_dir))
+    }
+
+    fn new_dbus_api(tmp_dir: &TempDir) -> Self {
+        // `tmp_dir` is in the form of "/tmp/chXXXXXX"
+        // and we take the `chXXXXXX` part as a unique identifier for the guest
+        let id = tmp_dir.as_path().file_name().unwrap().to_str().unwrap();
+
+        Self::DBusApi(
+            format!("org.cloudhypervisor.{id}"),
+            format!("/org/cloudhypervisor/{id}"),
+        )
+    }
+
+    fn guest_args(&self) -> Vec<&str> {
+        match self {
+            TargetApi::HttpApi(api_socket) => {
+                vec!["--api-socket", api_socket.as_str()]
+            }
+            TargetApi::DBusApi(service_name, object_path) => {
+                vec![
+                    "--dbus-service-name",
+                    service_name.as_str(),
+                    "--dbus-object-path",
+                    object_path.as_str(),
+                ]
+            }
+        }
+    }
+
+    fn remote_args(&self) -> Vec<&str> {
+        // `guest_args` and `remote_args` are consistent with each other
+        self.guest_args()
+    }
+
+    fn remote_command(&self, command: &str, arg: Option<&str>) -> bool {
+        let mut cmd = Command::new(clh_command("ch-remote"));
+        cmd.args(self.remote_args());
+        cmd.arg(command);
+
+        if let Some(arg) = arg {
+            cmd.arg(arg);
+        }
+
+        let output = cmd.output().unwrap();
+        if output.status.success() {
+            true
+        } else {
+            eprintln!("Error running ch-remote command: {:?}", &cmd);
+            let stderr = String::from_utf8_lossy(&output.stderr);
+            eprintln!("stderr: {stderr}");
+            false
+        }
+    }
+}
+
+// Start cloud-hypervisor with no VM parameters, only the API server running.
+// From the API: Create a VM, boot it and check that it looks as expected.
+fn _test_api_create_boot(target_api: TargetApi, guest: Guest) {
+    let mut child = GuestCommand::new(&guest)
+        .args(target_api.guest_args())
+        .capture_output()
+        .spawn()
+        .unwrap();
+
+    thread::sleep(std::time::Duration::new(1, 0));
+
+    // Verify API server is running
+    assert!(target_api.remote_command("ping", None));
+
+    // Create the VM first
+    let cpu_count: u8 = 4;
+    let request_body = guest.api_create_body(
+        cpu_count,
+        direct_kernel_boot_path().to_str().unwrap(),
+        DIRECT_KERNEL_BOOT_CMDLINE,
+    );
+
+    let temp_config_path = guest.tmp_dir.as_path().join("config");
+    std::fs::write(&temp_config_path, request_body).unwrap();
+    let create_config = temp_config_path.as_os_str().to_str().unwrap();
+
+    assert!(target_api.remote_command("create", Some(create_config),));
+
+    // Then boot it
+    assert!(target_api.remote_command("boot", None));
+    thread::sleep(std::time::Duration::new(20, 0));
+
+    let r = std::panic::catch_unwind(|| {
+        // Check that the VM booted as expected
+        assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
+        assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
+    });
+
+    let _ = child.kill();
+    let output = child.wait_with_output().unwrap();
+
+    handle_child_output(r, &output);
+}
+
+// Start cloud-hypervisor with no VM parameters, only the API server running.
+// From the API: Create a VM, boot it and check it can be shutdown and then
+// booted again
+fn _test_api_shutdown(target_api: TargetApi, guest: Guest) {
+    let mut child = GuestCommand::new(&guest)
+        .args(target_api.guest_args())
+        .capture_output()
+        .spawn()
+        .unwrap();
+
+    thread::sleep(std::time::Duration::new(1, 0));
+
+    // Verify API server is running
+    assert!(target_api.remote_command("ping", None));
+
+    // Create the VM first
+    let cpu_count: u8 = 4;
+    let request_body = guest.api_create_body(
+        cpu_count,
+        direct_kernel_boot_path().to_str().unwrap(),
+        DIRECT_KERNEL_BOOT_CMDLINE,
+    );
+
+    let temp_config_path = guest.tmp_dir.as_path().join("config");
+    std::fs::write(&temp_config_path, request_body).unwrap();
+    let create_config = temp_config_path.as_os_str().to_str().unwrap();
+
+    let r = std::panic::catch_unwind(|| {
+        assert!(target_api.remote_command("create", Some(create_config)));
+
+        // Then boot it
+        assert!(target_api.remote_command("boot", None));
+
+        guest.wait_vm_boot(None).unwrap();
+
+        // Check that the VM booted as expected
+        assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
+        assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
+
+        // Sync and shutdown without powering off to prevent filesystem
+        // corruption.
+        guest.ssh_command("sync").unwrap();
+        guest.ssh_command("sudo shutdown -H now").unwrap();
+
+        // Wait for the guest to be fully shutdown
+        thread::sleep(std::time::Duration::new(20, 0));
+
+        // Then shut it down
+        assert!(target_api.remote_command("shutdown", None));
+
+        // Then boot it again
+        assert!(target_api.remote_command("boot", None));
+
+        guest.wait_vm_boot(None).unwrap();
+
+        // Check that the VM booted as expected
+        assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
+        assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
+    });
+
+    let _ = child.kill();
+    let output = child.wait_with_output().unwrap();
+
+    handle_child_output(r, &output);
+}
+
+// Start cloud-hypervisor with no VM parameters, only the API server running.
+// From the API: Create a VM, boot it and check it can be deleted and then recreated
+// booted again.
+fn _test_api_delete(target_api: TargetApi, guest: Guest) {
+    let mut child = GuestCommand::new(&guest)
+        .args(target_api.guest_args())
+        .capture_output()
+        .spawn()
+        .unwrap();
+
+    thread::sleep(std::time::Duration::new(1, 0));
+
+    // Verify API server is running
+    assert!(target_api.remote_command("ping", None));
+
+    // Create the VM first
+    let cpu_count: u8 = 4;
+    let request_body = guest.api_create_body(
+        cpu_count,
+        direct_kernel_boot_path().to_str().unwrap(),
+        DIRECT_KERNEL_BOOT_CMDLINE,
+    );
+    let temp_config_path = guest.tmp_dir.as_path().join("config");
+    std::fs::write(&temp_config_path, request_body).unwrap();
+    let create_config = temp_config_path.as_os_str().to_str().unwrap();
+
+    let r = std::panic::catch_unwind(|| {
+        assert!(target_api.remote_command("create", Some(create_config)));
+
+        // Then boot it
+        assert!(target_api.remote_command("boot", None));
+
+        guest.wait_vm_boot(None).unwrap();
+
+        // Check that the VM booted as expected
+        assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
+        assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
+
+        // Sync and shutdown without powering off to prevent filesystem
+        // corruption.
+        guest.ssh_command("sync").unwrap();
+        guest.ssh_command("sudo shutdown -H now").unwrap();
+
+        // Wait for the guest to be fully shutdown
+        thread::sleep(std::time::Duration::new(20, 0));
+
+        // Then delete it
+        assert!(target_api.remote_command("delete", None));
+
+        assert!(target_api.remote_command("create", Some(create_config)));
+
+        // Then boot it again
+        assert!(target_api.remote_command("boot", None));
+
+        guest.wait_vm_boot(None).unwrap();
+
+        // Check that the VM booted as expected
+        assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
+        assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
+    });
+
+    let _ = child.kill();
+    let output = child.wait_with_output().unwrap();
+
+    handle_child_output(r, &output);
+}
+
+// Start cloud-hypervisor with no VM parameters, only the API server running.
+// From the API: Create a VM, boot it and check that it looks as expected.
+// Then we pause the VM, check that it's no longer available.
+// Finally we resume the VM and check that it's available.
+fn _test_api_pause_resume(target_api: TargetApi, guest: Guest) {
+    let mut child = GuestCommand::new(&guest)
+        .args(target_api.guest_args())
+        .capture_output()
+        .spawn()
+        .unwrap();
+
+    thread::sleep(std::time::Duration::new(1, 0));
+
+    // Verify API server is running
+    assert!(target_api.remote_command("ping", None));
+
+    // Create the VM first
+    let cpu_count: u8 = 4;
+    let request_body = guest.api_create_body(
+        cpu_count,
+        direct_kernel_boot_path().to_str().unwrap(),
+        DIRECT_KERNEL_BOOT_CMDLINE,
+    );
+
+    let temp_config_path = guest.tmp_dir.as_path().join("config");
+    std::fs::write(&temp_config_path, request_body).unwrap();
+    let create_config = temp_config_path.as_os_str().to_str().unwrap();
+
+    assert!(target_api.remote_command("create", Some(create_config)));
+
+    // Then boot it
+    assert!(target_api.remote_command("boot", None));
+    thread::sleep(std::time::Duration::new(20, 0));
+
+    let r = std::panic::catch_unwind(|| {
+        // Check that the VM booted as expected
+        assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
+        assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
+
+        // We now pause the VM
+        assert!(target_api.remote_command("pause", None));
+
+        // Check pausing again fails
+        assert!(!target_api.remote_command("pause", None));
+
+        thread::sleep(std::time::Duration::new(2, 0));
+
+        // SSH into the VM should fail
+        assert!(ssh_command_ip(
+            "grep -c processor /proc/cpuinfo",
+            &guest.network.guest_ip,
+            2,
+            5
+        )
+        .is_err());
+
+        // Resume the VM
+        assert!(target_api.remote_command("resume", None));
+
+        // Check resuming again fails
+        assert!(!target_api.remote_command("resume", None));
+
+        thread::sleep(std::time::Duration::new(2, 0));
+
+        // Now we should be able to SSH back in and get the right number of CPUs
+        assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
+    });
+
+    let _ = child.kill();
+    let output = child.wait_with_output().unwrap();
+
+    handle_child_output(r, &output);
+}
+
 fn prepare_virtiofsd(tmp_dir: &TempDir, shared_dir: &str) -> (std::process::Child, String) {
     let mut workload_path = dirs::home_dir().unwrap();
     workload_path.push("workloads");
@@ -252,26 +573,6 @@ fn prepare_swtpm_daemon(tmp_dir: &TempDir) -> (std::process::Command, String) {
     (swtpm_command, swtpm_socket_path)
 }
 
-fn curl_command(api_socket: &str, method: &str, url: &str, http_body: Option<&str>) {
-    let mut curl_args: Vec<&str> = ["--unix-socket", api_socket, "-i", "-X", method, url].to_vec();
-
-    if let Some(body) = http_body {
-        curl_args.push("-H");
-        curl_args.push("Accept: application/json");
-        curl_args.push("-H");
-        curl_args.push("Content-Type: application/json");
-        curl_args.push("-d");
-        curl_args.push(body);
-    }
-
-    let status = Command::new("curl")
-        .args(curl_args)
-        .status()
-        .expect("Failed to launch curl command");
-
-    assert!(status.success());
-}
-
 fn remote_command(api_socket: &str, command: &str, arg: Option<&str>) -> bool {
     let mut cmd = Command::new(clh_command("ch-remote"));
     cmd.args(["--api-socket", api_socket, command]);
@@ -1224,7 +1525,10 @@ fn _test_virtio_fs(
         .default_net()
         .args(["--api-socket", &api_socket]);
     if pci_segment.is_some() {
-        guest_command.args(["--platform", "num_pci_segments=16"]);
+        guest_command.args([
+            "--platform",
+            &format!("num_pci_segments={MAX_NUM_PCI_SEGMENTS}"),
+        ]);
     }
 
     let fs_params = format!(
@@ -1960,7 +2264,6 @@ mod common_parallel {
             guest.wait_vm_boot(Some(120)).unwrap();
 
             assert_eq!(guest.get_cpu_count().unwrap_or_default(), 1);
-            assert_eq!(guest.get_initial_apicid().unwrap_or(1), 0);
             assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
             assert_eq!(guest.get_pci_bridge_class().unwrap_or_default(), "0x060000");
 
@@ -2064,19 +2367,16 @@ mod common_parallel {
     }
 
     #[test]
-    #[cfg(not(feature = "mshv"))]
     fn test_cpu_topology_421() {
         test_cpu_topology(4, 2, 1, false);
     }
 
     #[test]
-    #[cfg(not(feature = "mshv"))]
     fn test_cpu_topology_142() {
         test_cpu_topology(1, 4, 2, false);
     }
 
     #[test]
-    #[cfg(not(feature = "mshv"))]
     fn test_cpu_topology_262() {
         test_cpu_topology(2, 6, 2, false);
     }
@@ -2248,7 +2548,7 @@ mod common_parallel {
                 "--memory-zone",
                 "id=mem0,size=1G,hotplug_size=2G",
                 "--memory-zone",
-                "id=mem1,size=1G,file=/dev/shm",
+                "id=mem1,size=1G,shared=on",
                 "--memory-zone",
                 "id=mem2,size=1G,host_numa_node=0,hotplug_size=2G",
             ])
@@ -2337,7 +2637,10 @@ mod common_parallel {
             .args(["--memory", "size=512M"])
             .args(["--kernel", direct_kernel_boot_path().to_str().unwrap()])
             .args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
-            .args(["--platform", "num_pci_segments=16,iommu_segments=[1]"])
+            .args([
+                "--platform",
+                &format!("num_pci_segments={MAX_NUM_PCI_SEGMENTS},iommu_segments=[1]"),
+            ])
             .default_disks()
             .capture_output()
             .default_net();
@@ -2493,7 +2796,10 @@ mod common_parallel {
             .args(["--memory", "size=512M"])
             .args(["--kernel", direct_kernel_boot_path().to_str().unwrap()])
             .args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
-            .args(["--platform", "num_pci_segments=16"])
+            .args([
+                "--platform",
+                &format!("num_pci_segments={MAX_NUM_PCI_SEGMENTS}"),
+            ])
             .args([
                 "--disk",
                 format!(
@@ -2520,15 +2826,15 @@ mod common_parallel {
         let grep_cmd = "lspci | grep \"Host bridge\" | wc -l";
 
         let r = std::panic::catch_unwind(|| {
-            // There should be 16 PCI host bridges in the guest.
+            // There should be MAX_NUM_PCI_SEGMENTS PCI host bridges in the guest.
             assert_eq!(
                 guest
                     .ssh_command(grep_cmd)
                     .unwrap()
                     .trim()
-                    .parse::<u32>()
+                    .parse::<u16>()
                     .unwrap_or_default(),
-                16
+                MAX_NUM_PCI_SEGMENTS
             );
 
             // Check both if /dev/vdc exists and if the block size is 4M.
@@ -3744,7 +4050,7 @@ mod common_parallel {
     // line (We tag the command line from cloud-hypervisor for that purpose).
     // The third device is added to validate that hotplug works correctly since
     // it is being added to the L2 VM through hotplugging mechanism.
-    // Also, we pass-through a vitio-blk device to the L2 VM to test the 32-bit
+    // Also, we pass-through a virtio-blk device to the L2 VM to test the 32-bit
     // vfio device support
     fn test_vfio() {
         setup_vfio_network_interfaces();
@@ -3989,7 +4295,7 @@ mod common_parallel {
                 .ssh_command_l1(
                     "sudo /mnt/ch-remote \
                  --api-socket /tmp/ch_api.sock \
-                 resize --memory=1073741824",
+                 resize --memory 1073741824",
                 )
                 .unwrap();
             assert!(guest.get_total_memory_l2().unwrap_or_default() > 960_000);
@@ -4048,299 +4354,35 @@ mod common_parallel {
     }
 
     #[test]
-    // Start cloud-hypervisor with no VM parameters, only the API server running.
-    // From the API: Create a VM, boot it and check that it looks as expected.
-    fn test_api_create_boot() {
+    fn test_api_http_shutdown() {
         let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
         let guest = Guest::new(Box::new(focal));
 
-        let api_socket = temp_api_path(&guest.tmp_dir);
-
-        let mut child = GuestCommand::new(&guest)
-            .args(["--api-socket", &api_socket])
-            .capture_output()
-            .spawn()
-            .unwrap();
-
-        thread::sleep(std::time::Duration::new(1, 0));
-
-        // Verify API server is running
-        curl_command(&api_socket, "GET", "http://localhost/api/v1/vmm.ping", None);
-
-        // Create the VM first
-        let cpu_count: u8 = 4;
-        let http_body = guest.api_create_body(
-            cpu_count,
-            direct_kernel_boot_path().to_str().unwrap(),
-            DIRECT_KERNEL_BOOT_CMDLINE,
-        );
-
-        let temp_config_path = guest.tmp_dir.as_path().join("config");
-        std::fs::write(&temp_config_path, http_body).unwrap();
-
-        remote_command(
-            &api_socket,
-            "create",
-            Some(temp_config_path.as_os_str().to_str().unwrap()),
-        );
-
-        // Then boot it
-        remote_command(&api_socket, "boot", None);
-        thread::sleep(std::time::Duration::new(20, 0));
-
-        let r = std::panic::catch_unwind(|| {
-            // Check that the VM booted as expected
-            assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
-            assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
-        });
-
-        let _ = child.kill();
-        let output = child.wait_with_output().unwrap();
-
-        handle_child_output(r, &output);
+        _test_api_shutdown(TargetApi::new_http_api(&guest.tmp_dir), guest)
     }
 
     #[test]
-    // Start cloud-hypervisor with no VM parameters, only the API server running.
-    // From the API: Create a VM, boot it and check it can be shutdown and then
-    // booted again
-    fn test_api_shutdown() {
+    fn test_api_http_delete() {
         let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
         let guest = Guest::new(Box::new(focal));
 
-        let api_socket = temp_api_path(&guest.tmp_dir);
-
-        let mut child = GuestCommand::new(&guest)
-            .args(["--api-socket", &api_socket])
-            .capture_output()
-            .spawn()
-            .unwrap();
-
-        thread::sleep(std::time::Duration::new(1, 0));
-
-        // Verify API server is running
-        curl_command(&api_socket, "GET", "http://localhost/api/v1/vmm.ping", None);
-
-        // Create the VM first
-        let cpu_count: u8 = 4;
-        let http_body = guest.api_create_body(
-            cpu_count,
-            direct_kernel_boot_path().to_str().unwrap(),
-            DIRECT_KERNEL_BOOT_CMDLINE,
-        );
-
-        let r = std::panic::catch_unwind(|| {
-            curl_command(
-                &api_socket,
-                "PUT",
-                "http://localhost/api/v1/vm.create",
-                Some(&http_body),
-            );
-
-            // Then boot it
-            curl_command(&api_socket, "PUT", "http://localhost/api/v1/vm.boot", None);
-
-            guest.wait_vm_boot(None).unwrap();
-
-            // Check that the VM booted as expected
-            assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
-            assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
-
-            // Sync and shutdown without powering off to prevent filesystem
-            // corruption.
-            guest.ssh_command("sync").unwrap();
-            guest.ssh_command("sudo shutdown -H now").unwrap();
-
-            // Wait for the guest to be fully shutdown
-            thread::sleep(std::time::Duration::new(20, 0));
-
-            // Then shut it down
-            curl_command(
-                &api_socket,
-                "PUT",
-                "http://localhost/api/v1/vm.shutdown",
-                None,
-            );
-
-            // Then boot it again
-            curl_command(&api_socket, "PUT", "http://localhost/api/v1/vm.boot", None);
-
-            guest.wait_vm_boot(None).unwrap();
-
-            // Check that the VM booted as expected
-            assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
-            assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
-        });
-
-        let _ = child.kill();
-        let output = child.wait_with_output().unwrap();
-
-        handle_child_output(r, &output);
+        _test_api_delete(TargetApi::new_http_api(&guest.tmp_dir), guest);
     }
 
     #[test]
-    // Start cloud-hypervisor with no VM parameters, only the API server running.
-    // From the API: Create a VM, boot it and check it can be deleted and then recreated
-    // booted again.
-    fn test_api_delete() {
+    fn test_api_http_pause_resume() {
         let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
         let guest = Guest::new(Box::new(focal));
 
-        let api_socket = temp_api_path(&guest.tmp_dir);
-
-        let mut child = GuestCommand::new(&guest)
-            .args(["--api-socket", &api_socket])
-            .capture_output()
-            .spawn()
-            .unwrap();
-
-        thread::sleep(std::time::Duration::new(1, 0));
-
-        // Verify API server is running
-        curl_command(&api_socket, "GET", "http://localhost/api/v1/vmm.ping", None);
-
-        // Create the VM first
-        let cpu_count: u8 = 4;
-        let http_body = guest.api_create_body(
-            cpu_count,
-            direct_kernel_boot_path().to_str().unwrap(),
-            DIRECT_KERNEL_BOOT_CMDLINE,
-        );
-
-        let r = std::panic::catch_unwind(|| {
-            curl_command(
-                &api_socket,
-                "PUT",
-                "http://localhost/api/v1/vm.create",
-                Some(&http_body),
-            );
-
-            // Then boot it
-            curl_command(&api_socket, "PUT", "http://localhost/api/v1/vm.boot", None);
-
-            guest.wait_vm_boot(None).unwrap();
-
-            // Check that the VM booted as expected
-            assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
-            assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
-
-            // Sync and shutdown without powering off to prevent filesystem
-            // corruption.
-            guest.ssh_command("sync").unwrap();
-            guest.ssh_command("sudo shutdown -H now").unwrap();
-
-            // Wait for the guest to be fully shutdown
-            thread::sleep(std::time::Duration::new(20, 0));
-
-            // Then delete it
-            curl_command(
-                &api_socket,
-                "PUT",
-                "http://localhost/api/v1/vm.delete",
-                None,
-            );
-
-            curl_command(
-                &api_socket,
-                "PUT",
-                "http://localhost/api/v1/vm.create",
-                Some(&http_body),
-            );
-
-            // Then boot it again
-            curl_command(&api_socket, "PUT", "http://localhost/api/v1/vm.boot", None);
-
-            guest.wait_vm_boot(None).unwrap();
-
-            // Check that the VM booted as expected
-            assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
-            assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
-        });
-
-        let _ = child.kill();
-        let output = child.wait_with_output().unwrap();
-
-        handle_child_output(r, &output);
+        _test_api_pause_resume(TargetApi::new_http_api(&guest.tmp_dir), guest)
     }
 
     #[test]
-    // Start cloud-hypervisor with no VM parameters, only the API server running.
-    // From the API: Create a VM, boot it and check that it looks as expected.
-    // Then we pause the VM, check that it's no longer available.
-    // Finally we resume the VM and check that it's available.
-    fn test_api_pause_resume() {
+    fn test_api_http_create_boot() {
         let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
         let guest = Guest::new(Box::new(focal));
 
-        let api_socket = temp_api_path(&guest.tmp_dir);
-
-        let mut child = GuestCommand::new(&guest)
-            .args(["--api-socket", &api_socket])
-            .capture_output()
-            .spawn()
-            .unwrap();
-
-        thread::sleep(std::time::Duration::new(1, 0));
-
-        // Verify API server is running
-        curl_command(&api_socket, "GET", "http://localhost/api/v1/vmm.ping", None);
-
-        // Create the VM first
-        let cpu_count: u8 = 4;
-        let http_body = guest.api_create_body(
-            cpu_count,
-            direct_kernel_boot_path().to_str().unwrap(),
-            DIRECT_KERNEL_BOOT_CMDLINE,
-        );
-        curl_command(
-            &api_socket,
-            "PUT",
-            "http://localhost/api/v1/vm.create",
-            Some(&http_body),
-        );
-
-        // Then boot it
-        curl_command(&api_socket, "PUT", "http://localhost/api/v1/vm.boot", None);
-        thread::sleep(std::time::Duration::new(20, 0));
-
-        let r = std::panic::catch_unwind(|| {
-            // Check that the VM booted as expected
-            assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
-            assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
-
-            // We now pause the VM
-            assert!(remote_command(&api_socket, "pause", None));
-
-            // Check pausing again fails
-            assert!(!remote_command(&api_socket, "pause", None));
-
-            thread::sleep(std::time::Duration::new(2, 0));
-
-            // SSH into the VM should fail
-            assert!(ssh_command_ip(
-                "grep -c processor /proc/cpuinfo",
-                &guest.network.guest_ip,
-                2,
-                5
-            )
-            .is_err());
-
-            // Resume the VM
-            assert!(remote_command(&api_socket, "resume", None));
-
-            // Check resuming again fails
-            assert!(!remote_command(&api_socket, "resume", None));
-
-            thread::sleep(std::time::Duration::new(2, 0));
-
-            // Now we should be able to SSH back in and get the right number of CPUs
-            assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
-        });
-
-        let _ = child.kill();
-        let output = child.wait_with_output().unwrap();
-
-        handle_child_output(r, &output);
+        _test_api_create_boot(TargetApi::new_http_api(&guest.tmp_dir), guest)
     }
 
     #[test]
@@ -4954,7 +4996,6 @@ mod common_parallel {
         handle_child_output(r, &output);
     }
 
-    #[allow(clippy::useless_conversion)]
     fn create_loop_device(backing_file_path: &str, block_size: u32, num_retries: usize) -> String {
         const LOOP_CONFIGURE: u64 = 0x4c0a;
         const LOOP_CTL_GET_FREE: u64 = 0x4c82;
@@ -5015,12 +5056,9 @@ mod common_parallel {
             .unwrap();
 
         // Request a free loop device
-        let loop_device_number = unsafe {
-            libc::ioctl(
-                loop_ctl_file.as_raw_fd(),
-                LOOP_CTL_GET_FREE.try_into().unwrap(),
-            )
-        };
+        let loop_device_number =
+            unsafe { libc::ioctl(loop_ctl_file.as_raw_fd(), LOOP_CTL_GET_FREE as _) };
+
         if loop_device_number < 0 {
             panic!("Couldn't find a free loop device");
         }
@@ -5052,7 +5090,7 @@ mod common_parallel {
             let ret = unsafe {
                 libc::ioctl(
                     loop_device_file.as_raw_fd(),
-                    LOOP_CONFIGURE.try_into().unwrap(),
+                    LOOP_CONFIGURE as _,
                     &loop_config,
                 )
             };
@@ -5237,6 +5275,7 @@ mod common_parallel {
     }
 
     #[test]
+    #[cfg(not(feature = "mshv"))]
     fn test_virtio_balloon_free_page_reporting() {
         let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
         let guest = Guest::new(Box::new(focal));
@@ -5336,7 +5375,10 @@ mod common_parallel {
             .capture_output();
 
         if pci_segment.is_some() {
-            cmd.args(["--platform", "num_pci_segments=16"]);
+            cmd.args([
+                "--platform",
+                &format!("num_pci_segments={MAX_NUM_PCI_SEGMENTS}"),
+            ]);
         }
 
         let mut child = cmd.spawn().unwrap();
@@ -5472,7 +5514,10 @@ mod common_parallel {
             .capture_output();
 
         if pci_segment.is_some() {
-            cmd.args(["--platform", "num_pci_segments=16"]);
+            cmd.args([
+                "--platform",
+                &format!("num_pci_segments={MAX_NUM_PCI_SEGMENTS}"),
+            ]);
         }
 
         let mut child = cmd.spawn().unwrap();
@@ -6300,11 +6345,13 @@ mod common_parallel {
     }
 
     #[test]
+    #[cfg_attr(target_arch = "aarch64", ignore = "See #5443")]
     fn test_macvtap() {
         _test_macvtap(false, "guestmacvtap0", "hostmacvtap0")
     }
 
     #[test]
+    #[cfg_attr(target_arch = "aarch64", ignore = "See #5443")]
     fn test_macvtap_hotplug() {
         _test_macvtap(true, "guestmacvtap1", "hostmacvtap1")
     }
@@ -6814,6 +6861,116 @@ mod common_parallel {
     }
 }
 
+mod dbus_api {
+    use crate::*;
+
+    // Start cloud-hypervisor with no VM parameters, running both the HTTP
+    // and DBus APIs. Alternate calls to the external APIs (HTTP and DBus)
+    // to create a VM, boot it, and verify that it can be shut down and then
+    // booted again.
+    #[test]
+    fn test_api_dbus_and_http_interleaved() {
+        let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
+        let guest = Guest::new(Box::new(focal));
+        let dbus_api = TargetApi::new_dbus_api(&guest.tmp_dir);
+        let http_api = TargetApi::new_http_api(&guest.tmp_dir);
+
+        let mut child = GuestCommand::new(&guest)
+            .args(dbus_api.guest_args())
+            .args(http_api.guest_args())
+            .capture_output()
+            .spawn()
+            .unwrap();
+
+        thread::sleep(std::time::Duration::new(1, 0));
+
+        // Verify API servers are running
+        assert!(dbus_api.remote_command("ping", None));
+        assert!(http_api.remote_command("ping", None));
+
+        // Create the VM first
+        let cpu_count: u8 = 4;
+        let request_body = guest.api_create_body(
+            cpu_count,
+            direct_kernel_boot_path().to_str().unwrap(),
+            DIRECT_KERNEL_BOOT_CMDLINE,
+        );
+
+        let temp_config_path = guest.tmp_dir.as_path().join("config");
+        std::fs::write(&temp_config_path, request_body).unwrap();
+        let create_config = temp_config_path.as_os_str().to_str().unwrap();
+
+        let r = std::panic::catch_unwind(|| {
+            // Create the VM
+            assert!(dbus_api.remote_command("create", Some(create_config),));
+
+            // Then boot it
+            assert!(http_api.remote_command("boot", None));
+            guest.wait_vm_boot(None).unwrap();
+
+            // Check that the VM booted as expected
+            assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
+            assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
+
+            // Sync and shutdown without powering off to prevent filesystem
+            // corruption.
+            guest.ssh_command("sync").unwrap();
+            guest.ssh_command("sudo shutdown -H now").unwrap();
+
+            // Wait for the guest to be fully shutdown
+            thread::sleep(std::time::Duration::new(20, 0));
+
+            // Then shutdown the VM
+            assert!(dbus_api.remote_command("shutdown", None));
+
+            // Then boot it again
+            assert!(http_api.remote_command("boot", None));
+            guest.wait_vm_boot(None).unwrap();
+
+            // Check that the VM booted as expected
+            assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
+            assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
+        });
+
+        let _ = child.kill();
+        let output = child.wait_with_output().unwrap();
+
+        handle_child_output(r, &output);
+    }
+
+    #[test]
+    fn test_api_dbus_create_boot() {
+        let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
+        let guest = Guest::new(Box::new(focal));
+
+        _test_api_create_boot(TargetApi::new_dbus_api(&guest.tmp_dir), guest)
+    }
+
+    #[test]
+    fn test_api_dbus_shutdown() {
+        let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
+        let guest = Guest::new(Box::new(focal));
+
+        _test_api_shutdown(TargetApi::new_dbus_api(&guest.tmp_dir), guest)
+    }
+
+    #[test]
+    fn test_api_dbus_delete() {
+        let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
+        let guest = Guest::new(Box::new(focal));
+
+        _test_api_delete(TargetApi::new_dbus_api(&guest.tmp_dir), guest);
+    }
+
+    #[test]
+    fn test_api_dbus_pause_resume() {
+        let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
+        let guest = Guest::new(Box::new(focal));
+
+        _test_api_pause_resume(TargetApi::new_dbus_api(&guest.tmp_dir), guest)
+    }
+}
+
 mod common_sequential {
     #[cfg(not(feature = "mshv"))]
     use crate::*;
@@ -8125,7 +8282,7 @@ mod vfio {
                 .ssh_command_l1(
                     "sudo /mnt/ch-remote \
                  --api-socket /tmp/ch_api.sock \
-                 resize --memory=1073741824",
+                 resize --memory 1073741824",
                 )
                 .unwrap();
             assert!(guest.get_total_memory_l2().unwrap_or_default() > 960_000);

tpm/src/emulator.rs

@@ -309,11 +309,7 @@ impl Emulator {
         }
 
         self.established_flag_cached = true;
-        if est.resp.bit != 0 {
-            self.established_flag = false;
-        } else {
-            self.established_flag = true;
-        }
+        self.established_flag = est.resp.bit == 0;
 
         self.established_flag
     }

tracer/Cargo.toml

@@ -8,8 +8,8 @@ edition = "2021"
 libc = "0.2.139"
 log = "0.4.17"
 once_cell = "1.17.1"
-serde = { version = "1.0.151", features = ["rc", "derive"] }
-serde_json = "1.0.93"
+serde = { version = "1.0.164", features = ["rc", "derive"] }
+serde_json = "1.0.96"
 
 [features]
 tracing = []

vhdx/Cargo.toml

@@ -11,5 +11,5 @@ crc32c = "0.6.3"
 libc = "0.2.139"
 log = "0.4.17"
 remain = "0.2.6"
-thiserror = "1.0.38"
-uuid = { version = "1.3.0", features = ["v4"] }
+thiserror = "1.0.40"
+uuid = { version = "1.3.4", features = ["v4"] }

vhdx/src/vhdx_metadata.rs

@@ -145,11 +145,7 @@ impl DiskSpec {
                 let bits = f
                     .read_u32::<LittleEndian>()
                     .map_err(VhdxMetadataError::ReadMetadata)?;
-                if bits & BLOCK_HAS_PARENT != 0 {
-                    disk_spec.has_parent = true;
-                } else {
-                    disk_spec.has_parent = false;
-                }
+                disk_spec.has_parent = bits & BLOCK_HAS_PARENT != 0;
 
                 metadata_presence |= METADATA_FILE_PARAMETER_PRESENT;
             } else if metadata_entry.item_id

vhost_user_block/Cargo.toml

@@ -14,10 +14,10 @@ libc = "0.2.139"
 log = "0.4.17"
 option_parser = { path = "../option_parser" }
 qcow = { path = "../qcow" }
-vhost = { version = "0.6.0", features = ["vhost-user-slave"] }
-vhost-user-backend = "0.8.0"
+vhost = { version = "0.7.0", features = ["vhost-user-slave"] }
+vhost-user-backend = "0.9.0"
 virtio-bindings = "0.2.0"
-virtio-queue = "0.7.0"
-vm-memory = "0.10.0"
+virtio-queue = "0.8.0"
+vm-memory = "0.11.0"
 vmm-sys-util = "0.11.0"
 

vhost_user_block/src/main.rs

@@ -32,7 +32,7 @@ fn main() {
     let toplevel: TopLevel = argh::from_env();
 
     if toplevel.version {
-        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILT_VERSION"));
+        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILD_VERSION"));
         return;
     }
 

vhost_user_net/Cargo.toml

@@ -13,9 +13,9 @@ libc = "0.2.139"
 log = "0.4.17"
 net_util = { path = "../net_util" }
 option_parser = { path = "../option_parser" }
-vhost = { version = "0.6.0", features = ["vhost-user-slave"] }
-vhost-user-backend = "0.8.0"
+vhost = { version = "0.7.0", features = ["vhost-user-slave"] }
+vhost-user-backend = "0.9.0"
 virtio-bindings = "0.2.0"
-vm-memory = "0.10.0"
+vm-memory = "0.11.0"
 vmm-sys-util = "0.11.0"
 

vhost_user_net/src/main.rs

@@ -28,7 +28,7 @@ fn main() {
     let toplevel: TopLevel = argh::from_env();
 
     if toplevel.version {
-        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILT_VERSION"));
+        println!("{} {}", env!("CARGO_BIN_NAME"), env!("BUILD_VERSION"));
         return;
     }
 

virtio-devices/Cargo.toml

@@ -8,13 +8,13 @@ edition = "2021"
 default = []
 
 [dependencies]
-anyhow = "1.0.69"
+anyhow = "1.0.71"
 arc-swap = "1.5.1"
 block_util = { path = "../block_util" }
 byteorder = "1.4.3"
 epoll = "4.3.1"
 event_monitor = { path = "../event_monitor" }
-io-uring = "0.5.12"
+io-uring = "0.5.13"
 libc = "0.2.139"
 log = "0.4.17"
 net_gen = { path = "../net_gen" }
@@ -22,18 +22,18 @@ net_util = { path = "../net_util" }
 pci = { path = "../pci" }
 rate_limiter = { path = "../rate_limiter" }
 seccompiler = "0.3.0"
-serde = { version = "1.0.151", features = ["derive"] }
-serde_json = "1.0.93"
+serde = { version = "1.0.164", features = ["derive"] }
+serde_json = "1.0.96"
 serial_buffer = { path = "../serial_buffer" }
-thiserror = "1.0.38"
-versionize = "0.1.9"
+thiserror = "1.0.40"
+versionize = "0.1.10"
 versionize_derive = "0.1.4"
-vhost = { version = "0.6.0", features = ["vhost-user-master", "vhost-user-slave", "vhost-kern", "vhost-vdpa"] }
+vhost = { version = "0.7.0", features = ["vhost-user-master", "vhost-user-slave", "vhost-kern", "vhost-vdpa"] }
 virtio-bindings = { version = "0.2.0", features = ["virtio-v5_0_0"] }
-virtio-queue = "0.7.0"
+virtio-queue = "0.8.0"
 vm-allocator = { path = "../vm-allocator" }
 vm-device = { path = "../vm-device" }
-vm-memory = { version = "0.10.0", features = ["backend-mmap", "backend-atomic", "backend-bitmap"] }
+vm-memory = { version = "0.11.0", features = ["backend-mmap", "backend-atomic", "backend-bitmap"] }
 vm-migration = { path = "../vm-migration" }
 vm-virtio = { path = "../vm-virtio" }
 vmm-sys-util = "0.11.0"

virtio-devices/src/lib.rs

@@ -39,19 +39,24 @@ pub mod vhost_user;
 pub mod vsock;
 pub mod watchdog;
 
-pub use self::balloon::*;
-pub use self::block::*;
-pub use self::console::*;
-pub use self::device::*;
-pub use self::epoll_helper::*;
-pub use self::iommu::*;
-pub use self::mem::*;
-pub use self::net::*;
-pub use self::pmem::*;
-pub use self::rng::*;
-pub use self::vdpa::*;
-pub use self::vsock::*;
-pub use self::watchdog::*;
+pub use self::balloon::Balloon;
+pub use self::block::{Block, BlockState};
+pub use self::console::{Console, ConsoleResizer, Endpoint};
+pub use self::device::{
+    DmaRemapping, UserspaceMapping, VirtioCommon, VirtioDevice, VirtioInterrupt,
+    VirtioInterruptType, VirtioSharedMemoryList,
+};
+pub use self::epoll_helper::{
+    EpollHelper, EpollHelperError, EpollHelperHandler, EPOLL_HELPER_EVENT_LAST,
+};
+pub use self::iommu::{AccessPlatformMapping, Iommu, IommuMapping};
+pub use self::mem::{BlocksState, Mem, VirtioMemMappingSource, VIRTIO_MEM_ALIGN_SIZE};
+pub use self::net::{Net, NetCtrlEpollHandler};
+pub use self::pmem::Pmem;
+pub use self::rng::Rng;
+pub use self::vdpa::{Vdpa, VdpaDmaMapping};
+pub use self::vsock::Vsock;
+pub use self::watchdog::Watchdog;
 use vm_memory::{bitmap::AtomicBitmap, GuestAddress, GuestMemory};
 use vm_virtio::VirtioDeviceType;
 
@@ -86,8 +91,8 @@ pub enum ActivateError {
     ThreadSpawn(std::io::Error),
     #[error("Failed to setup vhost-user-fs daemon: {0}")]
     VhostUserFsSetup(vhost_user::Error),
-    #[error("Failed to setup vhost-user-blk daemon: {0}")]
-    VhostUserBlkSetup(vhost_user::Error),
+    #[error("Failed to setup vhost-user daemon: {0}")]
+    VhostUserSetup(vhost_user::Error),
     #[error("Failed to create seccomp filter: {0}")]
     CreateSeccompFilter(seccompiler::Error),
     #[error("Failed to create rate limiter: {0}")]

virtio-devices/src/seccomp_filters.rs

@@ -259,6 +259,7 @@ fn virtio_thread_common() -> Vec<(i64, Vec<SeccompRule>)> {
         (libc::SYS_madvise, vec![]),
         (libc::SYS_mmap, vec![]),
         (libc::SYS_mprotect, vec![]),
+        (libc::SYS_mremap, vec![]),
         (libc::SYS_munmap, vec![]),
         (libc::SYS_openat, vec![]),
         (libc::SYS_read, vec![]),

virtio-devices/src/transport/pci_device.rs

@@ -48,14 +48,13 @@ use super::pci_common_config::VirtioPciCommonConfigState;
 /// Vector value used to disable MSI for a queue.
 const VIRTQ_MSI_NO_VECTOR: u16 = 0xffff;
 
-#[allow(clippy::enum_variant_names)]
 enum PciCapabilityType {
-    CommonConfig = 1,
-    NotifyConfig = 2,
-    IsrConfig = 3,
-    DeviceConfig = 4,
-    PciConfig = 5,
-    SharedMemoryConfig = 8,
+    Common = 1,
+    Notify = 2,
+    Isr = 3,
+    Device = 4,
+    Pci = 5,
+    SharedMemory = 8,
 }
 
 // This offset represents the 2 bytes omitted from the VirtioPciCap structure
@@ -210,7 +209,7 @@ impl PciCapability for VirtioPciCfgCap {
 impl VirtioPciCfgCap {
     fn new() -> Self {
         VirtioPciCfgCap {
-            cap: VirtioPciCap::new(PciCapabilityType::PciConfig, 0, 0, 0),
+            cap: VirtioPciCap::new(PciCapabilityType::Pci, 0, 0, 0),
             ..Default::default()
         }
     }
@@ -667,7 +666,7 @@ impl VirtioPciDevice {
     ) -> std::result::Result<(), PciDeviceError> {
         // Add pointers to the different configuration structures from the PCI capabilities.
         let common_cap = VirtioPciCap::new(
-            PciCapabilityType::CommonConfig,
+            PciCapabilityType::Common,
             settings_bar,
             COMMON_CONFIG_BAR_OFFSET as u32,
             COMMON_CONFIG_SIZE as u32,
@@ -677,7 +676,7 @@ impl VirtioPciDevice {
             .map_err(PciDeviceError::CapabilitiesSetup)?;
 
         let isr_cap = VirtioPciCap::new(
-            PciCapabilityType::IsrConfig,
+            PciCapabilityType::Isr,
             settings_bar,
             ISR_CONFIG_BAR_OFFSET as u32,
             ISR_CONFIG_SIZE as u32,
@@ -688,7 +687,7 @@ impl VirtioPciDevice {
 
         // TODO(dgreid) - set based on device's configuration size?
         let device_cap = VirtioPciCap::new(
-            PciCapabilityType::DeviceConfig,
+            PciCapabilityType::Device,
             settings_bar,
             DEVICE_CONFIG_BAR_OFFSET as u32,
             DEVICE_CONFIG_SIZE as u32,
@@ -698,7 +697,7 @@ impl VirtioPciDevice {
             .map_err(PciDeviceError::CapabilitiesSetup)?;
 
         let notify_cap = VirtioPciNotifyCap::new(
-            PciCapabilityType::NotifyConfig,
+            PciCapabilityType::Notify,
             settings_bar,
             NOTIFICATION_BAR_OFFSET as u32,
             NOTIFICATION_SIZE as u32,
@@ -1057,7 +1056,7 @@ impl PciDevice for VirtioPciDevice {
 
                 for (idx, shm) in shm_list.region_list.iter().enumerate() {
                     let shm_cap = VirtioPciCap64::new(
-                        PciCapabilityType::SharedMemoryConfig,
+                        PciCapabilityType::SharedMemory,
                         VIRTIO_SHM_BAR_INDEX as u8,
                         idx as u8,
                         shm.offset,

virtio-devices/src/vhost_user/fs.rs

@@ -605,7 +605,7 @@ impl VirtioDevice for Fs {
         &mut self,
         shm_regions: VirtioSharedMemoryList,
     ) -> std::result::Result<(), crate::Error> {
-        if let Some(mut cache) = self.cache.as_mut() {
+        if let Some(cache) = self.cache.as_mut() {
             cache.0 = shm_regions;
             Ok(())
         } else {

virtio-devices/src/vhost_user/mod.rs

@@ -237,7 +237,7 @@ impl<S: VhostUserMasterReqHandler> VhostUserEpollHandler<S> {
             .map_err(|e| {
                 EpollHelperError::IoError(std::io::Error::new(
                     std::io::ErrorKind::Other,
-                    format!("failed reconnecting vhost-user backend{e:?}"),
+                    format!("failed reconnecting vhost-user backend: {e:?}"),
                 ))
             })?;
 
@@ -340,7 +340,7 @@ impl VhostUserCommon {
                 &slave_req_handler,
                 inflight.as_mut(),
             )
-            .map_err(ActivateError::VhostUserBlkSetup)?;
+            .map_err(ActivateError::VhostUserSetup)?;
 
         Ok(VhostUserEpollHandler {
             vu: vu.clone(),
@@ -413,7 +413,7 @@ impl VhostUserCommon {
     pub fn pause(&mut self) -> std::result::Result<(), MigratableError> {
         if let Some(vu) = &self.vu {
             vu.lock().unwrap().pause_vhost_user().map_err(|e| {
-                MigratableError::Pause(anyhow!("Error pausing vhost-user-blk backend: {:?}", e))
+                MigratableError::Pause(anyhow!("Error pausing vhost-user backend: {:?}", e))
             })
         } else {
             Ok(())
@@ -423,7 +423,7 @@ impl VhostUserCommon {
     pub fn resume(&mut self) -> std::result::Result<(), MigratableError> {
         if let Some(vu) = &self.vu {
             vu.lock().unwrap().resume_vhost_user().map_err(|e| {
-                MigratableError::Resume(anyhow!("Error resuming vhost-user-blk backend: {:?}", e))
+                MigratableError::Resume(anyhow!("Error resuming vhost-user backend: {:?}", e))
             })
         } else {
             Ok(())

virtio-devices/src/vsock/csm/connection.rs

@@ -1,28 +1,28 @@
 // Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 //
-/// The main job of `VsockConnection` is to forward data traffic, back and forth, between a
-/// guest-side AF_VSOCK socket and a host-side generic `Read + Write + AsRawFd` stream, while
-/// also managing its internal state.
-/// To that end, `VsockConnection` implements:
-/// - `VsockChannel` for:
-///   - moving data from the host stream to a guest-provided RX buffer, via `recv_pkt()`; and
-///   - moving data from a guest-provided TX buffer to the host stream, via `send_pkt()`; and
-///   - updating its internal state, by absorbing control packets (anything other than
-///     VSOCK_OP_RW).
-/// - `VsockEpollListener` for getting notified about the availability of data or free buffer
-///   space at the host stream.
-///
-/// Note: there is a certain asymmetry to the RX and TX data flows:
-///       - RX transfers do not need any data buffering, since data is read straight from the
-///         host stream and into the guest-provided RX buffer;
-///       - TX transfers may require some data to be buffered by `VsockConnection`, if the host
-///         peer can't keep up with reading the data that we're writing. This is because, once
-///         the guest driver provides some data in a virtio TX buffer, the vsock device must
-///         consume it.  If that data can't be forwarded straight to the host stream, we'll
-///         have to store it in a buffer (and flush it at a later time). Vsock flow control
-///         ensures that our TX buffer doesn't overflow.
-///
+//! The main job of `VsockConnection` is to forward data traffic, back and forth, between a
+//! guest-side AF_VSOCK socket and a host-side generic `Read + Write + AsRawFd` stream, while
+//! also managing its internal state.
+//! To that end, `VsockConnection` implements:
+//! - `VsockChannel` for:
+//!   - moving data from the host stream to a guest-provided RX buffer, via `recv_pkt()`; and
+//!   - moving data from a guest-provided TX buffer to the host stream, via `send_pkt()`; and
+//!   - updating its internal state, by absorbing control packets (anything other than
+//!     VSOCK_OP_RW).
+//! - `VsockEpollListener` for getting notified about the availability of data or free buffer
+//!   space at the host stream.
+//!
+//! Note: there is a certain asymmetry to the RX and TX data flows:
+//! - RX transfers do not need any data buffering, since data is read straight from the
+//!   host stream and into the guest-provided RX buffer;
+//! - TX transfers may require some data to be buffered by `VsockConnection`, if the host
+//!   peer can't keep up with reading the data that we're writing. This is because, once
+//!   the guest driver provides some data in a virtio TX buffer, the vsock device must
+//!   consume it.  If that data can't be forwarded straight to the host stream, we'll
+//!   have to store it in a buffer (and flush it at a later time). Vsock flow control
+//!   ensures that our TX buffer doesn't overflow.
+//
 // The code in this file is best read with a fresh memory of the vsock protocol inner-workings.
 // To help with that, here is a
 //

virtio-devices/src/vsock/csm/mod.rs

@@ -1,9 +1,9 @@
 // Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 //
-/// This module implements our vsock connection state machine. The heavy lifting is done by
-/// `connection::VsockConnection`, while this file only defines some constants and helper structs.
-///
+//! This module implements our vsock connection state machine. The heavy lifting is done by
+//! `connection::VsockConnection`, while this file only defines some constants and helper structs.
+
 mod connection;
 mod txbuf;
 

virtio-devices/src/vsock/packet.rs

@@ -2,19 +2,19 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-/// `VsockPacket` provides a thin wrapper over the buffers exchanged via virtio queues.
-/// There are two components to a vsock packet, each using its own descriptor in a
-/// virtio queue:
-/// - the packet header; and
-/// - the packet data/buffer.
-/// There is a 1:1 relation between descriptor chains and packets: the first (chain head) holds
-/// the header, and an optional second descriptor holds the data. The second descriptor is only
-/// present for data packets (VSOCK_OP_RW).
-///
-/// `VsockPacket` wraps these two buffers and provides direct access to the data stored
-/// in guest memory. This is done to avoid unnecessarily copying data from guest memory
-/// to temporary buffers, before passing it on to the vsock backend.
-///
+//! `VsockPacket` provides a thin wrapper over the buffers exchanged via virtio queues.
+//! There are two components to a vsock packet, each using its own descriptor in a
+//! virtio queue:
+//! - the packet header; and
+//! - the packet data/buffer.
+//! There is a 1:1 relation between descriptor chains and packets: the first (chain head) holds
+//! the header, and an optional second descriptor holds the data. The second descriptor is only
+//! present for data packets (VSOCK_OP_RW).
+//!
+//! `VsockPacket` wraps these two buffers and provides direct access to the data stored
+//! in guest memory. This is done to avoid unnecessarily copying data from guest memory
+//! to temporary buffers, before passing it on to the vsock backend.
+
 use byteorder::{ByteOrder, LittleEndian};
 use std::ops::Deref;
 use std::sync::Arc;
@@ -436,7 +436,6 @@ mod tests {
     }
 
     #[test]
-    #[allow(clippy::cognitive_complexity)]
     fn test_tx_packet_assembly() {
         // Test case: successful TX packet assembly.
         {
@@ -581,7 +580,6 @@ mod tests {
     }
 
     #[test]
-    #[allow(clippy::cognitive_complexity)]
     fn test_packet_hdr_accessors() {
         const SRC_CID: u64 = 1;
         const DST_CID: u64 = 2;

virtio-devices/src/vsock/unix/mod.rs

@@ -2,12 +2,13 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-/// This module implements the Unix Domain Sockets backend for vsock - a mediator between
-/// guest-side AF_VSOCK sockets and host-side AF_UNIX sockets. The heavy lifting is performed by
-/// `muxer::VsockMuxer`, a connection multiplexer that uses `super::csm::VsockConnection` for
-/// handling vsock connection states.
-/// Check out `muxer.rs` for a more detailed explanation of the inner workings of this backend.
-///
+//! This module implements the Unix Domain Sockets backend for vsock - a mediator between
+//! guest-side AF_VSOCK sockets and host-side AF_UNIX sockets. The heavy lifting is performed by
+//! `muxer::VsockMuxer`, a connection multiplexer that uses `super::csm::VsockConnection` for
+//! handling vsock connection states.
+//!
+//! Check out `muxer.rs` for a more detailed explanation of the inner workings of this backend.
+
 mod muxer;
 mod muxer_killq;
 mod muxer_rxq;

virtio-devices/src/vsock/unix/muxer.rs

@@ -2,35 +2,42 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-/// `VsockMuxer` is the device-facing component of the Unix domain sockets vsock backend. I.e.
-/// by implementing the `VsockBackend` trait, it abstracts away the gory details of translating
-/// between AF_VSOCK and AF_UNIX, and presents a clean interface to the rest of the vsock
-/// device model.
-///
-/// The vsock muxer has two main roles:
-/// 1. Vsock connection multiplexer:
-///    It's the muxer's job to create, manage, and terminate `VsockConnection` objects. The
-///    muxer also routes packets to their owning connections. It does so via a connection
-///    `HashMap`, keyed by what is basically a (host_port, guest_port) tuple.
-///    Vsock packet traffic needs to be inspected, in order to detect connection request
-///    packets (leading to the creation of a new connection), and connection reset packets
-///    (leading to the termination of an existing connection). All other packets, though, must
-///    belong to an existing connection and, as such, the muxer simply forwards them.
-/// 2. Event dispatcher
-///    There are three event categories that the vsock backend is interested it:
-///    1. A new host-initiated connection is ready to be accepted from the listening host Unix
-///       socket;
-///    2. Data is available for reading from a newly-accepted host-initiated connection (i.e.
-///       the host is ready to issue a vsock connection request, informing us of the
-///       destination port to which it wants to connect);
-///    3. Some event was triggered for a connected Unix socket, that belongs to a
-///       `VsockConnection`.
-///    The muxer gets notified about all of these events, because, as a `VsockEpollListener`
-///    implementor, it gets to register a nested epoll FD into the main VMM epolling loop. All
-///    other pollable FDs are then registered under this nested epoll FD.
-///    To route all these events to their handlers, the muxer uses another `HashMap` object,
-///    mapping `RawFd`s to `EpollListener`s.
-///
+//! `VsockMuxer` is the device-facing component of the Unix domain sockets vsock backend. I.e.
+//! by implementing the `VsockBackend` trait, it abstracts away the gory details of translating
+//! between AF_VSOCK and AF_UNIX, and presents a clean interface to the rest of the vsock
+//! device model.
+//!
+//! The vsock muxer has two main roles:
+//!
+//! ## Vsock connection multiplexer
+//!
+//! It's the muxer's job to create, manage, and terminate `VsockConnection` objects. The
+//! muxer also routes packets to their owning connections. It does so via a connection
+//! `HashMap`, keyed by what is basically a (host_port, guest_port) tuple.
+//!
+//! Vsock packet traffic needs to be inspected, in order to detect connection request
+//! packets (leading to the creation of a new connection), and connection reset packets
+//! (leading to the termination of an existing connection). All other packets, though, must
+//! belong to an existing connection and, as such, the muxer simply forwards them.
+//!
+//! ## Event dispatcher
+//!
+//! There are three event categories that the vsock backend is interested it:
+//! 1. A new host-initiated connection is ready to be accepted from the listening host Unix
+//!    socket;
+//! 2. Data is available for reading from a newly-accepted host-initiated connection (i.e.
+//!    the host is ready to issue a vsock connection request, informing us of the
+//!    destination port to which it wants to connect);
+//! 3. Some event was triggered for a connected Unix socket, that belongs to a
+//!    `VsockConnection`.
+//!
+//! The muxer gets notified about all of these events, because, as a `VsockEpollListener`
+//! implementor, it gets to register a nested epoll FD into the main VMM epolling loop. All
+//! other pollable FDs are then registered under this nested epoll FD.
+//!
+//! To route all these events to their handlers, the muxer uses another `HashMap` object,
+//! mapping `RawFd`s to `EpollListener`s.
+
 use std::collections::{HashMap, HashSet};
 use std::fs::File;
 use std::io::{self, Read};
@@ -80,7 +87,7 @@ enum EpollListener {
     },
     /// A listener interested in new host-initiated connections.
     HostSock,
-    /// A listener interested in reading host "connect <port>" commands from a freshly
+    /// A listener interested in reading host "connect \<port>" commands from a freshly
     /// connected host socket.
     LocalStream(UnixStream),
 }
@@ -106,7 +113,7 @@ pub struct VsockMuxer {
     /// The Unix socket, through which host-initiated connections are accepted.
     host_sock: UnixListener,
     /// The file system path of the host-side Unix socket. This is used to figure out the path
-    /// to Unix sockets listening on specific ports. I.e. "<this path>_<port number>".
+    /// to Unix sockets listening on specific ports. I.e. "\<this path>_\<port number>".
     host_sock_path: String,
     /// The nested epoll File, used to register epoll listeners.
     epoll_file: File,

virtio-devices/src/vsock/unix/muxer_killq.rs

@@ -2,29 +2,29 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-/// `MuxerKillQ` implements a helper object that `VsockMuxer` can use for scheduling forced
-/// connection termination. I.e. after one peer issues a clean shutdown request
-/// (VSOCK_OP_SHUTDOWN), the concerned connection is queued for termination (VSOCK_OP_RST) in
-/// the near future (herein implemented via an expiring timer).
-///
-/// Whenever the muxer needs to schedule a connection for termination, it pushes it (or rather
-/// an identifier - the connection key) to this queue. A subsequent pop() operation will
-/// succeed if and only if the first connection in the queue is ready to be terminated (i.e.
-/// its kill timer expired).
-///
-/// Without using this queue, the muxer would have to walk its entire connection pool
-/// (hashmap), whenever it needs to check for expired kill timers. With this queue, both
-/// scheduling and termination are performed in constant time. However, since we don't want to
-/// waste space on a kill queue that's as big as the connection hashmap itself, it is possible
-/// that this queue may become full at times.  We call this kill queue "synchronized" if we are
-/// certain that all connections that are awaiting termination are present in the queue. This
-/// means a simple constant-time pop() operation is enough to check whether any connections
-/// need to be terminated.  When the kill queue becomes full, though, pushing fails, so
-/// connections that should be terminated are left out. The queue is not synchronized anymore.
-/// When that happens, the muxer will first drain the queue, and then replace it with a new
-/// queue, created by walking the connection pool, looking for connections that will be
-/// expiring in the future.
-///
+//! `MuxerKillQ` implements a helper object that `VsockMuxer` can use for scheduling forced
+//! connection termination. I.e. after one peer issues a clean shutdown request
+//! (VSOCK_OP_SHUTDOWN), the concerned connection is queued for termination (VSOCK_OP_RST) in
+//! the near future (herein implemented via an expiring timer).
+//!
+//! Whenever the muxer needs to schedule a connection for termination, it pushes it (or rather
+//! an identifier - the connection key) to this queue. A subsequent pop() operation will
+//! succeed if and only if the first connection in the queue is ready to be terminated (i.e.
+//! its kill timer expired).
+//!
+//! Without using this queue, the muxer would have to walk its entire connection pool
+//! (hashmap), whenever it needs to check for expired kill timers. With this queue, both
+//! scheduling and termination are performed in constant time. However, since we don't want to
+//! waste space on a kill queue that's as big as the connection hashmap itself, it is possible
+//! that this queue may become full at times.  We call this kill queue "synchronized" if we are
+//! certain that all connections that are awaiting termination are present in the queue. This
+//! means a simple constant-time pop() operation is enough to check whether any connections
+//! need to be terminated.  When the kill queue becomes full, though, pushing fails, so
+//! connections that should be terminated are left out. The queue is not synchronized anymore.
+//! When that happens, the muxer will first drain the queue, and then replace it with a new
+//! queue, created by walking the connection pool, looking for connections that will be
+//! expiring in the future.
+
 use std::collections::{HashMap, VecDeque};
 use std::time::Instant;
 

virtio-devices/src/vsock/unix/muxer_rxq.rs

@@ -2,20 +2,20 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-/// `MuxerRxQ` implements a helper object that `VsockMuxer` can use for queuing RX (host -> guest)
-/// packets (or rather instructions on how to build said packets).
-///
-/// Under ideal operation, every connection, that has pending RX data, will be present in the muxer
-/// RX queue. However, since the RX queue is smaller than the connection pool, it may, under some
-/// conditions, become full, meaning that it can no longer account for all the connections that can
-/// yield RX data.  When that happens, we say that it is no longer "synchronized" (i.e. with the
-/// connection pool).  A desynchronized RX queue still holds valid data, and the muxer will
-/// continue to pop packets from it. However, when a desynchronized queue is drained, additional
-/// data may still be available, so the muxer will have to perform a more costly walk of the entire
-/// connection pool to find it.  This walk is performed here, as part of building an RX queue from
-/// the connection pool. When an out-of-sync is drained, the muxer will discard it, and attempt to
-/// rebuild a synced one.
-///
+//! `MuxerRxQ` implements a helper object that `VsockMuxer` can use for queuing RX (host -> guest)
+//! packets (or rather instructions on how to build said packets).
+//!
+//! Under ideal operation, every connection, that has pending RX data, will be present in the muxer
+//! RX queue. However, since the RX queue is smaller than the connection pool, it may, under some
+//! conditions, become full, meaning that it can no longer account for all the connections that can
+//! yield RX data.  When that happens, we say that it is no longer "synchronized" (i.e. with the
+//! connection pool).  A desynchronized RX queue still holds valid data, and the muxer will
+//! continue to pop packets from it. However, when a desynchronized queue is drained, additional
+//! data may still be available, so the muxer will have to perform a more costly walk of the entire
+//! connection pool to find it.  This walk is performed here, as part of building an RX queue from
+//! the connection pool. When an out-of-sync is drained, the muxer will discard it, and attempt to
+//! rebuild a synced one.
+
 use std::collections::{HashMap, VecDeque};
 
 use super::super::VsockChannel;

vm-allocator/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2021"
 
 [dependencies]
 libc = "0.2.139"
-vm-memory = "0.10.0"
+vm-memory = "0.11.0"
 
 [target.'cfg(target_arch = "aarch64")'.dependencies]
 arch = { path = "../arch" }

vm-allocator/src/gsi.rs

@@ -63,7 +63,6 @@ impl GsiAllocator {
     }
 
     #[cfg(target_arch = "aarch64")]
-    #[allow(clippy::new_without_default)]
     /// New GSI allocator
     pub fn new() -> Self {
         GsiAllocator {
@@ -106,3 +105,10 @@ impl GsiAllocator {
         Ok(irq)
     }
 }
+
+#[cfg(target_arch = "aarch64")]
+impl Default for GsiAllocator {
+    fn default() -> Self {
+        GsiAllocator::new()
+    }
+}

vm-allocator/src/lib.rs

@@ -12,6 +12,8 @@
 
 mod address;
 mod gsi;
+/// page size related utility funtions
+pub mod page_size;
 mod system;
 
 pub use crate::address::AddressAllocator;

vm-allocator/src/page_size.rs

@@ -0,0 +1,38 @@
+// Copyright 2023 Arm Limited (or its affiliates). All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+use libc::{sysconf, _SC_PAGESIZE};
+
+/// get host page size
+pub fn get_page_size() -> u64 {
+    // SAFETY: FFI call. Trivially safe.
+    unsafe { sysconf(_SC_PAGESIZE) as u64 }
+}
+
+/// round up address to let it align page size
+pub fn align_page_size_up(address: u64) -> u64 {
+    let page_size = get_page_size();
+    (address + page_size - 1) & !(page_size - 1)
+}
+
+/// round down address to let it align page size
+pub fn align_page_size_down(address: u64) -> u64 {
+    let page_size = get_page_size();
+    address & !(page_size - 1)
+}
+
+/// Test if address is 4k aligned
+pub fn is_4k_aligned(address: u64) -> bool {
+    (address & 0xfff) == 0
+}
+
+/// Test if size is 4k aligned
+pub fn is_4k_multiple(size: u64) -> bool {
+    (size & 0xfff) == 0
+}
+
+/// Test if address is page size aligned
+pub fn is_page_size_aligned(address: u64) -> bool {
+    let page_size = get_page_size();
+    address & (page_size - 1) == 0
+}

vm-allocator/src/system.rs

@@ -14,14 +14,7 @@ use crate::gsi::GsiAllocator;
 #[cfg(target_arch = "x86_64")]
 use crate::gsi::GsiApic;
 
-use libc::{sysconf, _SC_PAGESIZE};
-
-/// Safe wrapper for `sysconf(_SC_PAGESIZE)`.
-#[inline(always)]
-fn pagesize() -> usize {
-    // SAFETY: FFI call. Trivially safe.
-    unsafe { sysconf(_SC_PAGESIZE) as usize }
-}
+use crate::page_size::get_page_size;
 
 /// Manages allocating system resources such as address space and interrupt numbers.
 ///
@@ -126,7 +119,7 @@ impl SystemAllocator {
         self.platform_mmio_address_space.allocate(
             address,
             size,
-            Some(align_size.unwrap_or(pagesize() as u64)),
+            Some(align_size.unwrap_or(get_page_size())),
         )
     }
 
@@ -140,7 +133,7 @@ impl SystemAllocator {
         self.mmio_hole_address_space.allocate(
             address,
             size,
-            Some(align_size.unwrap_or(pagesize() as u64)),
+            Some(align_size.unwrap_or(get_page_size())),
         )
     }
 

vm-device/Cargo.toml

@@ -10,11 +10,11 @@ kvm = ["vfio-ioctls/kvm"]
 mshv = ["vfio-ioctls/mshv"]
 
 [dependencies]
-anyhow = "1.0.69"
+anyhow = "1.0.71"
 hypervisor = { path = "../hypervisor" }
-thiserror = "1.0.38"
-serde = { version = "1.0.151", features = ["rc", "derive"] }
+thiserror = "1.0.40"
+serde = { version = "1.0.164", features = ["rc", "derive"] }
 vfio-ioctls = { git = "https://github.com/rust-vmm/vfio", branch = "main", default-features = false }
-vm-memory = { version = "0.10.0", features = ["backend-mmap"] }
+vm-memory = { version = "0.11.0", features = ["backend-mmap"] }
 vmm-sys-util = "0.11.0"
 

vm-device/src/bus.rs

@@ -110,8 +110,7 @@ impl Bus {
         let devices = self.devices.read().unwrap();
         let (range, dev) = devices
             .range(..=BusRange { base: addr, len: 1 })
-            .rev()
-            .next()?;
+            .next_back()?;
         dev.upgrade().map(|d| (*range, d.clone()))
     }
 

vm-migration/Cargo.toml

@@ -5,10 +5,10 @@ authors = ["The Cloud Hypervisor Authors"]
 edition = "2021"
 
 [dependencies]
-anyhow = "1.0.69"
-thiserror = "1.0.38"
-serde = { version = "1.0.151", features = ["rc", "derive"] }
-serde_json = "1.0.93"
-versionize = "0.1.9"
+anyhow = "1.0.71"
+thiserror = "1.0.40"
+serde = { version = "1.0.164", features = ["rc", "derive"] }
+serde_json = "1.0.96"
+versionize = "0.1.10"
 versionize_derive = "0.1.4"
-vm-memory = { version = "0.10.0", features = ["backend-mmap", "backend-atomic"] }
+vm-memory = { version = "0.11.0", features = ["backend-mmap", "backend-atomic"] }