kata-containers/cloud-hypervisor
1
0
Fork 0
mirror of https://github.com/cloud-hypervisor/cloud-hypervisor.git synced 2026-08-05 02:19:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

vm-virtio, virtio-devices: Split device implementation from virt queues

Browse Source 
Split the generic virtio code (queues and device type) from the
VirtioDevice trait, transport and device implementations.

This also simplifies the feature handling in vhost_user_backend as the
vm-virtio crate is no longer has any features.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford
2020-07-02 13:25:19 +01:00
parent 9a628edfcf
commit 2a6eb31d5b
51 changed files with 301 additions and 245 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
vmm/src/device_manager.rs
View File

@@ -63,6 +63,13 @@ use std::sync::{Arc, Mutex};
use tempfile::NamedTempFile;
#[cfg(feature = "pci_support")]
use vfio_ioctls::{VfioContainer, VfioDevice, VfioDmaMapping};
#[cfg(feature = "pci_support")]
use virtio_devices::transport::VirtioPciDevice;
use virtio_devices::transport::VirtioTransport;
use virtio_devices::vhost_user::VhostUserConfig;
#[cfg(feature = "pci_support")]
use virtio_devices::{DmaRemapping, IommuMapping};
use virtio_devices::{VirtioSharedMemory, VirtioSharedMemoryList};
use vm_allocator::SystemAllocator;
use vm_device::interrupt::{
InterruptIndex, InterruptManager, LegacyIrqGroupConfig, MsiIrqGroupConfig,
@@ -77,12 +84,7 @@ use vm_migration::{
Transportable,
};
#[cfg(feature = "pci_support")]
use vm_virtio::transport::VirtioPciDevice;
use vm_virtio::transport::VirtioTransport;
use vm_virtio::vhost_user::VhostUserConfig;
#[cfg(feature = "pci_support")]
use vm_virtio::{DmaRemapping, IommuMapping, VirtioDeviceType, VirtioIommuRemapping};
use vm_virtio::{VirtioSharedMemory, VirtioSharedMemoryList};
use vm_virtio::{VirtioDeviceType, VirtioIommuRemapping};
use vmm_sys_util::eventfd::EventFd;
#[cfg(feature = "mmio_support")]
@@ -125,13 +127,13 @@ pub enum DeviceManagerError {
Disk(io::Error),
/// Cannot create vhost-user-net device
CreateVhostUserNet(vm_virtio::vhost_user::Error),
CreateVhostUserNet(virtio_devices::vhost_user::Error),
/// Cannot create virtio-blk device
CreateVirtioBlock(io::Error),
/// Cannot create virtio-net device
CreateVirtioNet(vm_virtio::net::Error),
CreateVirtioNet(virtio_devices::net::Error),
/// Cannot create virtio-console device
CreateVirtioConsole(io::Error),
@@ -140,13 +142,13 @@ pub enum DeviceManagerError {
CreateVirtioRng(io::Error),
/// Cannot create virtio-fs device
CreateVirtioFs(vm_virtio::vhost_user::Error),
CreateVirtioFs(virtio_devices::vhost_user::Error),
/// Virtio-fs device was created without a socket.
NoVirtioFsSock,
/// Cannot create vhost-user-blk device
CreateVhostUserBlk(vm_virtio::vhost_user::Error),
CreateVhostUserBlk(virtio_devices::vhost_user::Error),
/// Cannot create virtio-pmem device
CreateVirtioPmem(io::Error),
@@ -158,7 +160,7 @@ pub enum DeviceManagerError {
CreateVsockConvertPath,
/// Cannot create virtio-vsock backend
CreateVsockBackend(vm_virtio::vsock::VsockUnixError),
CreateVsockBackend(virtio_devices::vsock::VsockUnixError),
/// Cannot create virtio-iommu device
CreateVirtioIommu(io::Error),
@@ -321,13 +323,13 @@ pub enum DeviceManagerError {
NoDiskPath,
/// Failed updating guest memory for virtio device.
UpdateMemoryForVirtioDevice(vm_virtio::Error),
UpdateMemoryForVirtioDevice(virtio_devices::Error),
/// Cannot create virtio-mem device
CreateVirtioMem(io::Error),
/// Cannot try Clone virtio-mem resize
TryCloneVirtioMemResize(vm_virtio::mem::Error),
TryCloneVirtioMemResize(virtio_devices::mem::Error),
/// Cannot find a memory range for virtio-mem memory
VirtioMemRangeAllocation,
@@ -366,7 +368,7 @@ pub enum DeviceManagerError {
}
pub type DeviceManagerResult<T> = result::Result<T, DeviceManagerError>;
type VirtioDeviceArc = Arc<Mutex<dyn vm_virtio::VirtioDevice>>;
type VirtioDeviceArc = Arc<Mutex<dyn virtio_devices::VirtioDevice>>;
pub fn get_win_size() -> (u16, u16) {
#[repr(C)]
@@ -390,7 +392,7 @@ pub fn get_win_size() -> (u16, u16) {
pub struct Console {
// Serial port on 0x3f8
serial: Option<Arc<Mutex<Serial>>>,
console_input: Option<Arc<vm_virtio::ConsoleInput>>,
console_input: Option<Arc<virtio_devices::ConsoleInput>>,
input_enabled: bool,
}
@@ -728,7 +730,7 @@ pub struct DeviceManager {
// Paravirtualized IOMMU
#[cfg(feature = "pci_support")]
iommu_device: Option<Arc<Mutex<vm_virtio::Iommu>>>,
iommu_device: Option<Arc<Mutex<virtio_devices::Iommu>>>,
// Bitmap of PCI devices to hotplug.
#[cfg(feature = "pci_support")]
@@ -962,7 +964,7 @@ impl DeviceManager {
let iommu_id = String::from(IOMMU_DEVICE_NAME);
let (iommu_device, iommu_mapping) = if self.config.lock().unwrap().iommu {
let (device, mapping) = vm_virtio::Iommu::new(iommu_id.clone())
let (device, mapping) = virtio_devices::Iommu::new(iommu_id.clone())
.map_err(DeviceManagerError::CreateVirtioIommu)?;
let device = Arc::new(Mutex::new(device));
self.iommu_device = Some(Arc::clone(&device));
@@ -1451,7 +1453,7 @@ impl DeviceManager {
let id = String::from(CONSOLE_DEVICE_NAME);
let (virtio_console_device, console_input) =
vm_virtio::Console::new(id.clone(), writer, col, row, console_config.iommu)
virtio_devices::Console::new(id.clone(), writer, col, row, console_config.iommu)
.map_err(DeviceManagerError::CreateVirtioConsole)?;
let virtio_console_device = Arc::new(Mutex::new(virtio_console_device));
virtio_devices.push((
@@ -1560,7 +1562,7 @@ impl DeviceManager {
queue_size: disk_cfg.queue_size,
};
let vhost_user_block_device = Arc::new(Mutex::new(
vm_virtio::vhost_user::Blk::new(id.clone(), vu_cfg)
virtio_devices::vhost_user::Blk::new(id.clone(), vu_cfg)
.map_err(DeviceManagerError::CreateVhostUserBlk)?,
));
@@ -1595,13 +1597,13 @@ impl DeviceManager {
)
.map_err(DeviceManagerError::Disk)?;
let mut raw_img = vm_virtio::RawFile::new(image, disk_cfg.direct);
let mut raw_img = virtio_devices::RawFile::new(image, disk_cfg.direct);
let image_type = qcow::detect_image_type(&mut raw_img)
.map_err(DeviceManagerError::DetectImageType)?;
match image_type {
ImageType::Raw => {
let dev = vm_virtio::Block::new(
let dev = virtio_devices::Block::new(
id.clone(),
raw_img,
disk_cfg
@@ -1631,7 +1633,7 @@ impl DeviceManager {
ImageType::Qcow2 => {
let qcow_img =
QcowFile::from(raw_img).map_err(DeviceManagerError::QcowDeviceCreate)?;
let dev = vm_virtio::Block::new(
let dev = virtio_devices::Block::new(
id.clone(),
qcow_img,
disk_cfg
@@ -1736,7 +1738,7 @@ impl DeviceManager {
queue_size: net_cfg.queue_size,
};
let vhost_user_net_device = Arc::new(Mutex::new(
vm_virtio::vhost_user::Net::new(id.clone(), net_cfg.mac, vu_cfg)
virtio_devices::vhost_user::Net::new(id.clone(), net_cfg.mac, vu_cfg)
.map_err(DeviceManagerError::CreateVhostUserNet)?,
));
@@ -1756,7 +1758,7 @@ impl DeviceManager {
} else {
let virtio_net_device = if let Some(ref tap_if_name) = net_cfg.tap {
Arc::new(Mutex::new(
vm_virtio::Net::new(
virtio_devices::Net::new(
id.clone(),
Some(tap_if_name),
None,
@@ -1771,7 +1773,7 @@ impl DeviceManager {
))
} else {
Arc::new(Mutex::new(
vm_virtio::Net::new(
virtio_devices::Net::new(
id.clone(),
None,
Some(net_cfg.ip),
@@ -1829,7 +1831,7 @@ impl DeviceManager {
let id = String::from(RNG_DEVICE_NAME);
let virtio_rng_device = Arc::new(Mutex::new(
vm_virtio::Rng::new(id.clone(), rng_path, rng_config.iommu)
virtio_devices::Rng::new(id.clone(), rng_path, rng_config.iommu)
.map_err(DeviceManagerError::CreateVirtioRng)?,
));
devices.push((
@@ -1969,7 +1971,7 @@ impl DeviceManager {
};
let virtio_fs_device = Arc::new(Mutex::new(
vm_virtio::vhost_user::Fs::new(
virtio_devices::vhost_user::Fs::new(
id.clone(),
fs_socket,
&fs_cfg.tag,
@@ -2142,7 +2144,7 @@ impl DeviceManager {
)
.map_err(DeviceManagerError::MemoryManager)?;
let mapping = vm_virtio::UserspaceMapping {
let mapping = virtio_devices::UserspaceMapping {
host_addr,
mem_slot,
addr: GuestAddress(region_base),
@@ -2151,7 +2153,7 @@ impl DeviceManager {
};
let virtio_pmem_device = Arc::new(Mutex::new(
vm_virtio::Pmem::new(
virtio_devices::Pmem::new(
id.clone(),
file,
GuestAddress(region_base),
@@ -2211,11 +2213,11 @@ impl DeviceManager {
.to_str()
.ok_or(DeviceManagerError::CreateVsockConvertPath)?;
let backend =
vm_virtio::vsock::VsockUnixBackend::new(vsock_cfg.cid, socket_path.to_string())
virtio_devices::vsock::VsockUnixBackend::new(vsock_cfg.cid, socket_path.to_string())
.map_err(DeviceManagerError::CreateVsockBackend)?;
let vsock_device = Arc::new(Mutex::new(
vm_virtio::Vsock::new(
virtio_devices::Vsock::new(
id.clone(),
vsock_cfg.cid,
vsock_cfg.socket.clone(),
@@ -2265,7 +2267,7 @@ impl DeviceManager {
let id = String::from(MEM_DEVICE_NAME);
let virtio_mem_device = Arc::new(Mutex::new(
vm_virtio::Mem::new(
virtio_devices::Mem::new(
id.clone(),
&region,
resize
@@ -2735,7 +2737,7 @@ impl DeviceManager {
let memory = self.memory_manager.lock().unwrap().guest_memory();
let mut mmio_device =
vm_virtio::transport::MmioDevice::new(id.clone(), memory, virtio_device)
virtio_devices::transport::MmioDevice::new(id.clone(), memory, virtio_device)
.map_err(DeviceManagerError::VirtioDevice)?;
for (i, (event, addr)) in mmio_device.ioeventfds(mmio_base).iter().enumerate() {