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2723 Commits

Author SHA1 Message Date
Thomas Prescher
b15459106c docs: update vm.resize-disk 
On-behalf-of: SAP thomas.prescher@sap.com
Signed-off-by: Thomas Prescher <thomas.prescher@cyberus-technology.de>
 2025-12-17 13:54:52 +00:00
Thomas Prescher
5fb078305a ch-remote: support live disk resizing 
Support disk resizing via ch-remote and REST api.

On-behalf-of: SAP thomas.prescher@sap.com
Signed-off-by: Thomas Prescher <thomas.prescher@cyberus-technology.de>
 2025-12-17 13:54:52 +00:00
Thomas Prescher
37d71fa038 vmm: disk resize infrastructure 
Add basic infrastructure so resize events are
propagated to the underlying disk implementation.

On-behalf-of: SAP thomas.prescher@sap.com
Signed-off-by: Thomas Prescher <thomas.prescher@cyberus-technology.de>
 2025-12-17 13:54:52 +00:00
Philipp Schuster
7288031c0e misc: slightly improve feature list readability 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-12-14 17:05:49 +00:00
Philipp Schuster
82e8002fa0 misc: clippy: remove some overrides 
Closes #4986 [0].

[0]: https://github.com/cloud-hypervisor/cloud-hypervisor/issues/4986

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-12-14 17:05:49 +00:00
Pascal Scholz
a8d1411307 vmm: Write directly to member when creating new devices 
Virtio PCI devices are created in a set of nested functions. In each
of this functions a vector is created to add created devices to, only
to be appended to the vector of the higher nesting level. Those nested
vectors are unnecessary as we can directly write to the member of
`DeviceManager`.

Signed-off-by: Pascal Scholz <pascal.scholz@cyberus-technology.de>
On-behalf-of: SAP pascal.scholz@sap.com
 2025-12-14 17:04:23 +00:00
Oliver Anderson
bcc6ac68e9 seccomp: Add KVM_GET_XSAVE2 for amx state 
Signed-off-by: Oliver Anderson <oliver.anderson@cyberus-technology.de>
Signed-off-by: Songqian Li <sionli@tencent.com>
 2025-12-11 17:14:13 +00:00
Philipp Schuster
6bda6541be vmm: cleanup &Mutex parameters 
In [0] we refactored some Arc<Mutex<T>> parameters to &Mutex<T>> to
satisfy clippy's needless_pass_by_value lint. Nevertheless, this is also
not so idiomatic, so as a follow-up, we put the responsibility to lock
objects to the caller side (only where this is not strictly needed by
the callee).

While on it, I also tried to pass vm_config directly into
pre_create_console_devices() which would clean up some code, but then
we have interleaving mutable and immutable borrows of the Vmm, which
are denied by the borrow checker.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-12-10 11:06:29 +00:00
Oliver Anderson
8de24b5f08 vmm: Fix clippy lints 
This PR fixes some clippy lints in the vmm crate.

Signed-off-by: Oliver Anderson <oliver.anderson@cyberus-technology.de>
On-behalf-of: SAP oliver.anderson@sap.com
 2025-12-09 16:14:44 +00:00
Oliver Anderson
5ec1e66e22 vmm: Refactor amx tile state component enabling logic 
We enable AMX tile state components via the hypervisor (as introduced
in the previous commit) instead of doing this inline in the body of
`CpuManager::new`.

Signed-off-by: Oliver Anderson <oliver.anderson@cyberus-technology.de>
On-behalf-of: SAP oliver.anderson@sap.com
 2025-12-04 14:04:11 +00:00
Muminul Islam
658a7f9175 arch: vmm: disable nested virtualization if needed 
User can now disable nested virtualization for Intel and AMD
if configured by the CLI.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
 2025-12-03 09:56:58 +00:00
Muminul Islam
d8360ddc8e hypervisor: vmm: passing nested argument from VMM to hypervisor 
This patch connects the VMM and hypervisor to fully enable nested
support for MSHV.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
 2025-12-03 09:56:58 +00:00
Muminul Islam
f10d0bb33d vmm: add nested option to CPU config 
Add an option in the CLI to enable nested support.
Adding an option --cpu nested=on|off to the CPU
argument to enable nested support for Microsoft
Hypervisor. By default it is enabled for both KVM
and MSHV.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
 2025-12-03 09:56:58 +00:00
Muminul Islam
deaf660a52 vmm: simplify VM creation API 
Create HypervisorVmConfig early and pass the
struct to VM creation API in the vmm crate. Getting
rid of multiple conditional parameter.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
 2025-12-03 09:56:58 +00:00
Rob Bradford
4abebc9e56 hypervisor: Don't create temporary vector for boot MSRs 
The MSRs are constant at boot time so rather than creating a vector in
the boot_msr_entries() method instead reaturn a reference to static MSR
array data.

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
 2025-11-29 13:07:16 +00:00
Julian Stecklina
dbb148b216 vmm: refactor live migration receive into state machine 
Previously, state that we accumulated during the migration process in
the receiver was kept in `mut Option` variables or HashMaps. The
problem is that it is unclear in the code when these variables can be
safely used. It's also difficult to add new state, such as the state
we need to handle the upcoming feature for performing the migration
using multiple connections.

To solve this, I've refactored the code to use the state machine
pattern. Each state carries the data it needs to. Any state that
didn't arrive yet (memory_files, memory_manager) cannot be accessed
until we are in the proper state.

Some benefits that fall out of this:

- We now respond to all requests, even invalid ones, at least with an
  error message.
- Any error handling a request will result in an error message being
  sent.
- There is only a single place where responses are sent and thus it's
  very hard to mess this up in the code.
- The main protocol state machine fits on a screen.

I would argue that especially the error cases are now much more
consistent. There is still a lot to be done. There is still state
transfer via self.vm and similar. In an ideal world, this would also
be carried by the state machine. I also want to see better handling of
payloads, which are still handled all over the place, but this change
is already too big. :)

Co-authored-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP julian.stecklina@sap.com
On-behalf-of: SAP philipp.schuster@sap.com
Signed-off-by: Julian Stecklina <julian.stecklina@cyberus-technology.de>
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
 2025-11-28 08:41:47 +00:00
Julian Stecklina
1861bc49e7 vmm: simplify receiving memory fds 
... and nuke some Option<> while I was there. Given that HashMap has a
usable default and we end up passing an empty HashMap anyway, just get
rid of the Option.

On-behalf-of: SAP julian.stecklina@sap.com
Signed-off-by: Julian Stecklina <julian.stecklina@cyberus-technology.de>
 2025-11-28 08:41:47 +00:00
Philipp Schuster
afcb2b285f tpm: remove mixture of str and Path 
`impl AsRef<Path>` is the most idiomatic way to consume paths
in Rust. I removed the mixture.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-27 17:11:14 +00:00
Philipp Schuster
c53781bf5f misc: clippy: add needless_pass_by_value 
This is a follow-up of [0].

# Advantages

- This saves dozens of unneeded clone()s across the whole code base
- Makes it much easier to reason about how parameters are used
  (often we passed owned Arc/Rc versions without actually needing
  ownership)

# Exceptions

For certain code paths, the alternatives would require awkward or overly
complex code, and in some cases the functions are the logical owners of
the values they take. In those cases, I've added
#[allow(clippy::needless_pass_by_value)].

This does not mean that one should not improve this in the future.

[0] 6a86c157af

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-27 17:11:14 +00:00
Praveen K Paladugu
ed4af3a005 vmm: fix the initial flush while using PTY 
Fix the condition to correctly identify a new PTY connection.

Fixes: 287887c99 (vmm: fix console IO safety)
Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com>
 2025-11-27 08:28:44 +00:00
Praveen K Paladugu
ac5fc69b2e vmm: Fix fd leak in socket connection handling 
Previously, `into_raw_fd()` transferred fd ownership to epoll while
keeping separate clones in `reader` and `writer`, causing leaks when
the stream was closed. Now, `reader` owns the fd and epoll borrows it.
When the FD is closed in the kernel, reader will be reset to None.

Signed-off-by: Praveen K Paladugu <prapal@linux.microsoft.com>
 2025-11-27 08:28:44 +00:00
Songqian Li
41382879d3 seccomp: add arch_prctl syscall for amx 
When enabling amx feature, we should call arch_prctl to request
permission to use tile data for guest. The permission should be
requested before the first vcpu is created, so we need to call
arch_prctl in vmm thread. This patch adds the arch_prctl syscall for
vmm_thread_rules.

Fixes: #7516

Signed-off-by: Songqian Li <sionli@tencent.com>
 2025-11-26 13:53:02 +00:00
Philipp Schuster
6a86c157af misc: clippy: add needless_pass_by_value (partially) 
This helps to uncover expensive and needless clones in the code base.
For example, I prevented extensive clones in the snapshot path where
(nested) BTreeMap's have been cloned over and over again. Further,
the lint helps devs to much better reason about the ownership of
parameters.

All of these changes have been done manually with the necessary
caution. A few structs that are cheap to clone are now `copy` so that
this lint won't trigger for them.

I didn't enable the lint so far as it is a massive rabbit hole and
needs much more fixes. Nevertheless, it is very useful.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-25 16:05:46 +00:00
Philipp Schuster
0a07c96d17 misc: clippy: add if_not_else 
This removes cognitive load when reading if statements.
All changes were applied by clippy via `--fix`.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-25 16:05:46 +00:00
Philipp Schuster
a0b72dce22 misc: clippy: add redundant_else 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-25 16:05:46 +00:00
Philipp Schuster
d2b19bb969 misc: clippy: add map_unwrap_or 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-25 16:05:46 +00:00
Julian Stecklina
8c50450002 vmm: don't needlessly clone strings 
On-behalf-of: SAP julian.stecklina@sap.com
Signed-off-by: Julian Stecklina <julian.stecklina@cyberus-technology.de>
 2025-11-25 15:58:31 +00:00
Philipp Schuster
7443a9f69e misc: fix typo and wording 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-25 15:58:31 +00:00
Philipp Schuster
28b54df01d vmm: cleanup: replace map_err misuse with inspect_err 
This is continuing the work from [0]. Some places in CHV
"misuse" Result::map_err for side-effects. inspect_err is
a better suited alternative for exactly that use-case.

Unfortunately, there is no clippy lint for this yet.

[0] f02745a7ed

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-25 15:58:31 +00:00
dependabot[bot]
4e93f85ab1 build: Bump the non-rust-vmm group across 2 directories with 38 updates 
Bumps the non-rust-vmm group with 28 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [zbus](https://github.com/z-galaxy/zbus) | `5.11.0` | `5.12.0` |
| [serde_with](https://github.com/jonasbb/serde_with) | `3.15.0` | `3.16.0` |
| [bitflags](https://github.com/bitflags/bitflags) | `2.9.4` | `2.10.0` |
| [cfg-if](https://github.com/rust-lang/cfg-if) | `1.0.3` | `1.0.4` |
| [clap](https://github.com/clap-rs/clap) | `4.5.49` | `4.5.53` |
| [zerocopy](https://github.com/google/zerocopy) | `0.8.27` | `0.8.30` |
| [io-uring](https://github.com/tokio-rs/io-uring) | `0.7.10` | `0.7.11` |
| [num_enum](https://github.com/illicitonion/num_enum) | `0.7.4` | `0.7.5` |
| [getrandom](https://github.com/rust-random/getrandom) | `0.3.3` | `0.3.4` |
| [landlock](https://github.com/landlock-lsm/rust-landlock) | `0.4.3` | `0.4.4` |
| [aho-corasick](https://github.com/BurntSushi/aho-corasick) | `1.1.3` | `1.1.4` |
| [anstyle-query](https://github.com/rust-cli/anstyle) | `1.1.4` | `1.1.5` |
| [anstyle-wincon](https://github.com/rust-cli/anstyle) | `3.0.10` | `3.0.11` |
| [cc](https://github.com/rust-lang/cc-rs) | `1.2.41` | `1.2.47` |
| [hashbrown](https://github.com/rust-lang/hashbrown) | `0.16.0` | `0.16.1` |
| [indexmap](https://github.com/indexmap-rs/indexmap) | `2.11.4` | `2.12.1` |
| [is_terminal_polyfill](https://github.com/polyfill-rs/is_terminal_polyfill) | `1.70.1` | `1.70.2` |
| [jiff](https://github.com/BurntSushi/jiff) | `0.2.15` | `0.2.16` |
| [libz-sys](https://github.com/rust-lang/libz-sys) | `1.1.22` | `1.1.23` |
| [once_cell_polyfill](https://github.com/polyfill-rs/once_cell_polyfill) | `1.70.1` | `1.70.2` |
| [openssl-src](https://github.com/alexcrichton/openssl-src-rs) | `300.5.3+3.5.4` | `300.5.4+3.5.4` |
| [openssl-sys](https://github.com/rust-openssl/rust-openssl) | `0.9.109` | `0.9.111` |
| [proc-macro2](https://github.com/dtolnay/proc-macro2) | `1.0.101` | `1.0.103` |
| [quote](https://github.com/dtolnay/quote) | `1.0.41` | `1.0.42` |
| [signal-hook-registry](https://github.com/vorner/signal-hook) | `1.4.6` | `1.4.7` |
| [syn](https://github.com/dtolnay/syn) | `2.0.106` | `2.0.111` |
| [unicode-ident](https://github.com/dtolnay/unicode-ident) | `1.0.19` | `1.0.22` |
| [zvariant](https://github.com/dbus2/zbus) | `5.7.0` | `5.8.0` |

Bumps the non-rust-vmm group with 20 updates in the /fuzz directory:

| Package | From | To |
| --- | --- | --- |
| [serde_with](https://github.com/jonasbb/serde_with) | `3.15.0` | `3.16.0` |
| [bitflags](https://github.com/bitflags/bitflags) | `2.9.4` | `2.10.0` |
| [cfg-if](https://github.com/rust-lang/cfg-if) | `1.0.3` | `1.0.4` |
| [clap](https://github.com/clap-rs/clap) | `4.5.49` | `4.5.53` |
| [zerocopy](https://github.com/google/zerocopy) | `0.8.27` | `0.8.30` |
| [num_enum](https://github.com/illicitonion/num_enum) | `0.7.4` | `0.7.5` |
| [landlock](https://github.com/landlock-lsm/rust-landlock) | `0.4.3` | `0.4.4` |
| [anstyle-query](https://github.com/rust-cli/anstyle) | `1.1.4` | `1.1.5` |
| [anstyle-wincon](https://github.com/rust-cli/anstyle) | `3.0.10` | `3.0.11` |
| [cc](https://github.com/rust-lang/cc-rs) | `1.2.41` | `1.2.47` |
| [hashbrown](https://github.com/rust-lang/hashbrown) | `0.16.0` | `0.16.1` |
| [indexmap](https://github.com/indexmap-rs/indexmap) | `2.11.4` | `2.12.1` |
| [is_terminal_polyfill](https://github.com/polyfill-rs/is_terminal_polyfill) | `1.70.1` | `1.70.2` |
| [once_cell_polyfill](https://github.com/polyfill-rs/once_cell_polyfill) | `1.70.1` | `1.70.2` |
| [proc-macro2](https://github.com/dtolnay/proc-macro2) | `1.0.101` | `1.0.103` |
| [quote](https://github.com/dtolnay/quote) | `1.0.41` | `1.0.42` |
| [signal-hook-registry](https://github.com/vorner/signal-hook) | `1.4.6` | `1.4.7` |
| [syn](https://github.com/dtolnay/syn) | `2.0.106` | `2.0.111` |
| [unicode-ident](https://github.com/dtolnay/unicode-ident) | `1.0.19` | `1.0.22` |
| [windows-sys](https://github.com/microsoft/windows-rs) | `0.60.2` | `0.61.2` |



Updates `zbus` from 5.11.0 to 5.12.0
- [Release notes](https://github.com/z-galaxy/zbus/releases)
- [Commits](https://github.com/z-galaxy/zbus/compare/zbus-5.11.0...zbus-5.12.0)

Updates `serde_with` from 3.15.0 to 3.16.0
- [Release notes](https://github.com/jonasbb/serde_with/releases)
- [Commits](https://github.com/jonasbb/serde_with/compare/v3.15.0...v3.16.0)

Updates `bitflags` from 2.9.4 to 2.10.0
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.9.4...2.10.0)

Updates `cfg-if` from 1.0.3 to 1.0.4
- [Release notes](https://github.com/rust-lang/cfg-if/releases)
- [Changelog](https://github.com/rust-lang/cfg-if/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/cfg-if/compare/v1.0.3...v1.0.4)

Updates `clap` from 4.5.49 to 4.5.53
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/clap_complete-v4.5.49...clap_complete-v4.5.53)

Updates `zerocopy` from 0.8.27 to 0.8.30
- [Release notes](https://github.com/google/zerocopy/releases)
- [Changelog](https://github.com/google/zerocopy/blob/main/CHANGELOG.md)
- [Commits](https://github.com/google/zerocopy/compare/v0.8.27...v0.8.30)

Updates `io-uring` from 0.7.10 to 0.7.11
- [Commits](https://github.com/tokio-rs/io-uring/commits/v0.7.11)

Updates `num_enum` from 0.7.4 to 0.7.5
- [Commits](https://github.com/illicitonion/num_enum/compare/0.7.4...0.7.5)

Updates `getrandom` from 0.3.3 to 0.3.4
- [Release notes](https://github.com/rust-random/getrandom/releases)
- [Changelog](https://github.com/rust-random/getrandom/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-random/getrandom/compare/v0.3.3...v0.3.4)

Updates `landlock` from 0.4.3 to 0.4.4
- [Release notes](https://github.com/landlock-lsm/rust-landlock/releases)
- [Changelog](https://github.com/landlock-lsm/rust-landlock/blob/main/CHANGELOG.md)
- [Commits](https://github.com/landlock-lsm/rust-landlock/compare/v0.4.3...v0.4.4)

Updates `aho-corasick` from 1.1.3 to 1.1.4
- [Commits](https://github.com/BurntSushi/aho-corasick/compare/1.1.3...1.1.4)

Updates `anstyle-query` from 1.1.4 to 1.1.5
- [Commits](https://github.com/rust-cli/anstyle/compare/anstyle-query-v1.1.4...anstyle-query-v1.1.5)

Updates `anstyle-wincon` from 3.0.10 to 3.0.11
- [Commits](https://github.com/rust-cli/anstyle/compare/anstyle-wincon-v3.0.10...anstyle-wincon-v3.0.11)

Updates `cc` from 1.2.41 to 1.2.47
- [Release notes](https://github.com/rust-lang/cc-rs/releases)
- [Changelog](https://github.com/rust-lang/cc-rs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/cc-rs/compare/cc-v1.2.41...cc-v1.2.47)

Updates `clap_builder` from 4.5.49 to 4.5.53
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v4.5.49...v4.5.53)

Updates `find-msvc-tools` from 0.1.4 to 0.1.5
- [Release notes](https://github.com/rust-lang/cc-rs/releases)
- [Changelog](https://github.com/rust-lang/cc-rs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/cc-rs/compare/find-msvc-tools-v0.1.4...find-msvc-tools-v0.1.5)

Updates `hashbrown` from 0.16.0 to 0.16.1
- [Release notes](https://github.com/rust-lang/hashbrown/releases)
- [Changelog](https://github.com/rust-lang/hashbrown/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/hashbrown/compare/v0.16.0...v0.16.1)

Updates `indexmap` from 2.11.4 to 2.12.1
- [Changelog](https://github.com/indexmap-rs/indexmap/blob/main/RELEASES.md)
- [Commits](https://github.com/indexmap-rs/indexmap/compare/2.11.4...2.12.1)

Updates `is_terminal_polyfill` from 1.70.1 to 1.70.2
- [Changelog](https://github.com/polyfill-rs/is_terminal_polyfill/blob/main-v1.70/CHANGELOG.md)
- [Commits](https://github.com/polyfill-rs/is_terminal_polyfill/compare/v1.70.1...v1.70.2)

Updates `jiff` from 0.2.15 to 0.2.16
- [Release notes](https://github.com/BurntSushi/jiff/releases)
- [Changelog](https://github.com/BurntSushi/jiff/blob/master/CHANGELOG.md)
- [Commits](https://github.com/BurntSushi/jiff/compare/jiff-static-0.2.15...jiff-static-0.2.16)

Updates `jiff-static` from 0.2.15 to 0.2.16
- [Release notes](https://github.com/BurntSushi/jiff/releases)
- [Changelog](https://github.com/BurntSushi/jiff/blob/master/CHANGELOG.md)
- [Commits](https://github.com/BurntSushi/jiff/compare/jiff-static-0.2.15...jiff-static-0.2.16)

Updates `libz-sys` from 1.1.22 to 1.1.23
- [Release notes](https://github.com/rust-lang/libz-sys/releases)
- [Commits](https://github.com/rust-lang/libz-sys/compare/1.1.22...1.1.23)

Updates `num_enum_derive` from 0.7.4 to 0.7.5
- [Commits](https://github.com/illicitonion/num_enum/compare/0.7.4...0.7.5)

Updates `once_cell_polyfill` from 1.70.1 to 1.70.2
- [Changelog](https://github.com/polyfill-rs/once_cell_polyfill/blob/v1.70.2/CHANGELOG.md)
- [Commits](https://github.com/polyfill-rs/once_cell_polyfill/compare/v1.70.1...v1.70.2)

Updates `openssl-src` from 300.5.3+3.5.4 to 300.5.4+3.5.4
- [Release notes](https://github.com/alexcrichton/openssl-src-rs/releases)
- [Commits](https://github.com/alexcrichton/openssl-src-rs/commits)

Updates `openssl-sys` from 0.9.109 to 0.9.111
- [Release notes](https://github.com/rust-openssl/rust-openssl/releases)
- [Commits](https://github.com/rust-openssl/rust-openssl/compare/openssl-sys-v0.9.109...openssl-sys-v0.9.111)

Updates `proc-macro2` from 1.0.101 to 1.0.103
- [Release notes](https://github.com/dtolnay/proc-macro2/releases)
- [Commits](https://github.com/dtolnay/proc-macro2/compare/1.0.101...1.0.103)

Updates `quote` from 1.0.41 to 1.0.42
- [Release notes](https://github.com/dtolnay/quote/releases)
- [Commits](https://github.com/dtolnay/quote/compare/1.0.41...1.0.42)

Updates `serde_with_macros` from 3.15.0 to 3.16.0
- [Release notes](https://github.com/jonasbb/serde_with/releases)
- [Commits](https://github.com/jonasbb/serde_with/compare/v3.15.0...v3.16.0)

Updates `signal-hook-registry` from 1.4.6 to 1.4.7
- [Changelog](https://github.com/vorner/signal-hook/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vorner/signal-hook/compare/registry-v1.4.6...registry-v1.4.7)

Updates `syn` from 2.0.106 to 2.0.111
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](https://github.com/dtolnay/syn/compare/2.0.106...2.0.111)

Updates `unicode-ident` from 1.0.19 to 1.0.22
- [Release notes](https://github.com/dtolnay/unicode-ident/releases)
- [Commits](https://github.com/dtolnay/unicode-ident/compare/1.0.19...1.0.22)

Updates `zbus_macros` from 5.11.0 to 5.12.0
- [Release notes](https://github.com/z-galaxy/zbus/releases)
- [Commits](https://github.com/z-galaxy/zbus/compare/zbus-5.11.0...zbus-5.12.0)

Updates `zerocopy-derive` from 0.8.27 to 0.8.30
- [Release notes](https://github.com/google/zerocopy/releases)
- [Changelog](https://github.com/google/zerocopy/blob/main/CHANGELOG.md)
- [Commits](https://github.com/google/zerocopy/compare/v0.8.27...v0.8.30)

Updates `zvariant` from 5.7.0 to 5.8.0
- [Release notes](https://github.com/dbus2/zbus/releases)
- [Commits](https://github.com/dbus2/zbus/compare/zvariant-5.7.0...zvariant-5.8.0)

Updates `zvariant_derive` from 5.7.0 to 5.8.0
- [Release notes](https://github.com/dbus2/zbus/releases)
- [Commits](https://github.com/dbus2/zbus/compare/zbus-5.7.0...zbus-5.8.0)

Updates `serde_with` from 3.15.0 to 3.16.0
- [Release notes](https://github.com/jonasbb/serde_with/releases)
- [Commits](https://github.com/jonasbb/serde_with/compare/v3.15.0...v3.16.0)

Updates `bitflags` from 2.9.4 to 2.10.0
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/2.9.4...2.10.0)

Updates `cfg-if` from 1.0.3 to 1.0.4
- [Release notes](https://github.com/rust-lang/cfg-if/releases)
- [Changelog](https://github.com/rust-lang/cfg-if/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/cfg-if/compare/v1.0.3...v1.0.4)

Updates `clap` from 4.5.49 to 4.5.53
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/clap_complete-v4.5.49...clap_complete-v4.5.53)

Updates `zerocopy` from 0.8.27 to 0.8.30
- [Release notes](https://github.com/google/zerocopy/releases)
- [Changelog](https://github.com/google/zerocopy/blob/main/CHANGELOG.md)
- [Commits](https://github.com/google/zerocopy/compare/v0.8.27...v0.8.30)

Updates `bitfield-struct` from 0.11.0 to 0.12.1
- [Release notes](https://github.com/wrenger/bitfield-struct-rs/releases)
- [Commits](https://github.com/wrenger/bitfield-struct-rs/compare/0.11.0...0.12.1)

Updates `num_enum` from 0.7.4 to 0.7.5
- [Commits](https://github.com/illicitonion/num_enum/compare/0.7.4...0.7.5)

Updates `landlock` from 0.4.3 to 0.4.4
- [Release notes](https://github.com/landlock-lsm/rust-landlock/releases)
- [Changelog](https://github.com/landlock-lsm/rust-landlock/blob/main/CHANGELOG.md)
- [Commits](https://github.com/landlock-lsm/rust-landlock/compare/v0.4.3...v0.4.4)

Updates `anstyle-query` from 1.1.4 to 1.1.5
- [Commits](https://github.com/rust-cli/anstyle/compare/anstyle-query-v1.1.4...anstyle-query-v1.1.5)

Updates `anstyle-wincon` from 3.0.10 to 3.0.11
- [Commits](https://github.com/rust-cli/anstyle/compare/anstyle-wincon-v3.0.10...anstyle-wincon-v3.0.11)

Updates `cc` from 1.2.41 to 1.2.47
- [Release notes](https://github.com/rust-lang/cc-rs/releases)
- [Changelog](https://github.com/rust-lang/cc-rs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/cc-rs/compare/cc-v1.2.41...cc-v1.2.47)

Updates `clap_builder` from 4.5.49 to 4.5.53
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v4.5.49...v4.5.53)

Updates `find-msvc-tools` from 0.1.4 to 0.1.5
- [Release notes](https://github.com/rust-lang/cc-rs/releases)
- [Changelog](https://github.com/rust-lang/cc-rs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/cc-rs/compare/find-msvc-tools-v0.1.4...find-msvc-tools-v0.1.5)

Updates `hashbrown` from 0.16.0 to 0.16.1
- [Release notes](https://github.com/rust-lang/hashbrown/releases)
- [Changelog](https://github.com/rust-lang/hashbrown/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/hashbrown/compare/v0.16.0...v0.16.1)

Updates `indexmap` from 2.11.4 to 2.12.1
- [Changelog](https://github.com/indexmap-rs/indexmap/blob/main/RELEASES.md)
- [Commits](https://github.com/indexmap-rs/indexmap/compare/2.11.4...2.12.1)

Updates `is_terminal_polyfill` from 1.70.1 to 1.70.2
- [Changelog](https://github.com/polyfill-rs/is_terminal_polyfill/blob/main-v1.70/CHANGELOG.md)
- [Commits](https://github.com/polyfill-rs/is_terminal_polyfill/compare/v1.70.1...v1.70.2)

Updates `num_enum_derive` from 0.7.4 to 0.7.5
- [Commits](https://github.com/illicitonion/num_enum/compare/0.7.4...0.7.5)

Updates `once_cell_polyfill` from 1.70.1 to 1.70.2
- [Changelog](https://github.com/polyfill-rs/once_cell_polyfill/blob/v1.70.2/CHANGELOG.md)
- [Commits](https://github.com/polyfill-rs/once_cell_polyfill/compare/v1.70.1...v1.70.2)

Updates `proc-macro2` from 1.0.101 to 1.0.103
- [Release notes](https://github.com/dtolnay/proc-macro2/releases)
- [Commits](https://github.com/dtolnay/proc-macro2/compare/1.0.101...1.0.103)

Updates `quote` from 1.0.41 to 1.0.42
- [Release notes](https://github.com/dtolnay/quote/releases)
- [Commits](https://github.com/dtolnay/quote/compare/1.0.41...1.0.42)

Updates `serde_with_macros` from 3.15.0 to 3.16.0
- [Release notes](https://github.com/jonasbb/serde_with/releases)
- [Commits](https://github.com/jonasbb/serde_with/compare/v3.15.0...v3.16.0)

Updates `signal-hook-registry` from 1.4.6 to 1.4.7
- [Changelog](https://github.com/vorner/signal-hook/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vorner/signal-hook/compare/registry-v1.4.6...registry-v1.4.7)

Updates `syn` from 2.0.106 to 2.0.111
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](https://github.com/dtolnay/syn/compare/2.0.106...2.0.111)

Updates `unicode-ident` from 1.0.19 to 1.0.22
- [Release notes](https://github.com/dtolnay/unicode-ident/releases)
- [Commits](https://github.com/dtolnay/unicode-ident/compare/1.0.19...1.0.22)

Updates `windows-sys` from 0.60.2 to 0.61.2
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](https://github.com/microsoft/windows-rs/commits)

Updates `zerocopy-derive` from 0.8.27 to 0.8.30
- [Release notes](https://github.com/google/zerocopy/releases)
- [Changelog](https://github.com/google/zerocopy/blob/main/CHANGELOG.md)
- [Commits](https://github.com/google/zerocopy/compare/v0.8.27...v0.8.30)

---
updated-dependencies:
- dependency-name: zbus
  dependency-version: 5.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: serde_with
  dependency-version: 3.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: bitflags
  dependency-version: 2.10.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: cfg-if
  dependency-version: 1.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: clap
  dependency-version: 4.5.53
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: zerocopy
  dependency-version: 0.8.30
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: io-uring
  dependency-version: 0.7.11
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: num_enum
  dependency-version: 0.7.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: getrandom
  dependency-version: 0.3.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: landlock
  dependency-version: 0.4.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: aho-corasick
  dependency-version: 1.1.4
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: anstyle-query
  dependency-version: 1.1.5
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: anstyle-wincon
  dependency-version: 3.0.11
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: cc
  dependency-version: 1.2.47
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: clap_builder
  dependency-version: 4.5.53
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: find-msvc-tools
  dependency-version: 0.1.5
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: hashbrown
  dependency-version: 0.16.1
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: indexmap
  dependency-version: 2.12.1
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: is_terminal_polyfill
  dependency-version: 1.70.2
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: jiff
  dependency-version: 0.2.16
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: jiff-static
  dependency-version: 0.2.16
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: libz-sys
  dependency-version: 1.1.23
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: num_enum_derive
  dependency-version: 0.7.5
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: once_cell_polyfill
  dependency-version: 1.70.2
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: openssl-src
  dependency-version: 300.5.4+3.5.4
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: openssl-sys
  dependency-version: 0.9.111
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: proc-macro2
  dependency-version: 1.0.103
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: quote
  dependency-version: 1.0.42
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: serde_with_macros
  dependency-version: 3.16.0
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: signal-hook-registry
  dependency-version: 1.4.7
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: syn
  dependency-version: 2.0.111
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: unicode-ident
  dependency-version: 1.0.22
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: zbus_macros
  dependency-version: 5.12.0
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: zerocopy-derive
  dependency-version: 0.8.30
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: zvariant
  dependency-version: 5.8.0
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: zvariant_derive
  dependency-version: 5.8.0
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: serde_with
  dependency-version: 3.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: bitflags
  dependency-version: 2.10.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: cfg-if
  dependency-version: 1.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: clap
  dependency-version: 4.5.53
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: zerocopy
  dependency-version: 0.8.30
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: bitfield-struct
  dependency-version: 0.12.1
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: num_enum
  dependency-version: 0.7.5
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: landlock
  dependency-version: 0.4.4
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: anstyle-query
  dependency-version: 1.1.5
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: anstyle-wincon
  dependency-version: 3.0.11
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: cc
  dependency-version: 1.2.47
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: clap_builder
  dependency-version: 4.5.53
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: find-msvc-tools
  dependency-version: 0.1.5
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: hashbrown
  dependency-version: 0.16.1
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: indexmap
  dependency-version: 2.12.1
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: is_terminal_polyfill
  dependency-version: 1.70.2
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: num_enum_derive
  dependency-version: 0.7.5
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: once_cell_polyfill
  dependency-version: 1.70.2
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: proc-macro2
  dependency-version: 1.0.103
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: quote
  dependency-version: 1.0.42
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: serde_with_macros
  dependency-version: 3.16.0
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: signal-hook-registry
  dependency-version: 1.4.7
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: syn
  dependency-version: 2.0.111
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: unicode-ident
  dependency-version: 1.0.22
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
- dependency-name: windows-sys
  dependency-version: 0.61.2
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: non-rust-vmm
- dependency-name: zerocopy-derive
  dependency-version: 0.8.30
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: non-rust-vmm
...

Signed-off-by: dependabot[bot] <support@github.com>
 2025-11-25 11:12:36 +00:00
Philipp Schuster
67fc9d990e misc: vmm: drop extern crate, use modern rust 
This commit is part of a series of similar commits.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-24 22:36:46 +00:00
Demi Marie Obenour
969a3b57a3 misc: tdx: make tdx_init_memory_region() unsafe 
It takes a pointer to a userspace address that it accesses, so it should
be marked unsafe.  This was missed earlier.

Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
 2025-11-22 10:24:13 +00:00
Demi Marie Obenour
8be28f8438 misc: Work around vfio_dma_map being unsound 
This API passes a u64 to a kernel API that treats the u64 as a userspace
address.  Therefore, it should be marked unsafe, but it currently is not
[1].  Wrap the call in an unsafe block to document that invariants must
be upheld to avoid undefined behavior.  This causes a compiler warning,
so suppress the warning with #[allow(unused_unsafe)].

[1]: https://github.com/rust-vmm/vfio/issues/100

Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
 2025-11-22 10:24:13 +00:00
Demi Marie Obenour
199d2d05d8 hypervisor: tdx: do not use u64 to represent pointers 
Also drop support for building the TDX code for 32-bit targets.  All
CPUs with TDX support are 64-bit so supporting 32-bit targets is not
needed.

Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
 2025-11-22 10:24:13 +00:00
Demi Marie Obenour
42522a88c0 misc: do not use u64 to represent host pointers 
To ensure that struct sizes are the same on 32-bit and 64-bit, various
kernel APIs use __u64 (Rust u64) to represent userspace pointers.
Userspace is expected to cast pointers to __u64 before passing them to
the kernel, and cast kernel-provided __u64 to a pointer before using
them.  However, various safe APIs in Cloud Hypervisor took
caller-provided u64 values and passed them to syscalls that interpret
them as userspace addresses.  Therefore, passing bad u64 values would
cause memory disclosure or corruption.

Fix the bug by using usize and pointer types as appropriate.  To make
soundness of the code easier to reason about, the PCI code gains a new
MmapRegion abstraction that ensures the validity of pointers.  The rest
of the code already has an MmapRegion abstraction it can use.  To avoid
having to reason about whether something is keeping the MmapRegion
alive, reference counting is added.  MmapRegion cannot hold references
to other objects, so the reference counting cannot introduce cycles.

Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
 2025-11-22 10:24:13 +00:00
Demi Marie Obenour
fdc19ad85e misc: Mark memory region APIs as unsafe 
To ensure that struct sizes are the same on 32-bit and 64-bit, various
kernel APIs use __u64 (Rust u64) to represent userspace pointers.
Userspace is expected to cast pointers to __u64 before passing them to
the kernel, and cast kernel-provided __u64 to a pointer before using
them.  However, various safe APIs in Cloud Hypervisor took
caller-provided u64 values and passed them to syscalls that treat them
as userspace addresses.  Therefore, passing bad u64 values would cause
memory disclosure or corruption.  The memory region APIs are one example
of this, so mark them as unsafe.

Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
 2025-11-22 10:24:13 +00:00
Demi Marie Obenour
00f0b9e42c vmm: Fix clippy lints on RISC-V 
These caused CI failures in #7129.

No functional change.

Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com>
 2025-11-22 10:24:13 +00:00
Stefan Nürnberger
95b8c6afdd seccomp: allow sendto for vfio_user devices 
as of rust 1.90, writes to unix sockets use the sendto syscall. This
affects the vcpu threads when vfio_user devices are accessed.

Signed-off-by: Stefan Nürnberger <stefan.nuernberger@cyberus-technology.de>
 2025-11-21 17:06:19 +00:00
Philipp Schuster
f02745a7ed vmm: unrelated small code improvements 
Unfortunately, there is no lint for that.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-21 09:32:11 +00:00
Philipp Schuster
fed010fcd1 misc: clippy: add manual_string_new 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-21 09:32:11 +00:00
Philipp Schuster
b4c62bf159 misc: clippy: add semicolon_if_nothing_returned 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-21 09:32:11 +00:00
Philipp Schuster
ea4f07d3bf misc: clippy: add uninlined_format_args 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-21 09:32:11 +00:00
Philipp Schuster
7cb73e9e56 misc: clippy: add unnecessary_semicolon 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-21 09:32:11 +00:00
Philipp Schuster
7364fbdc8e tests: move VM test into a test module 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-20 21:15:03 +00:00
Philipp Schuster
35b91f76af tests: prevent broken terminal after running cargo test -p vmm 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-20 21:15:03 +00:00
Philipp Schuster
d1680b9ff9 tests: streamline module names to unit_tests 
This better aligns with the rest of the code and makes it clearer
that these tests can run "as is" in a normal hosted environments
without the special test environment.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-20 21:15:03 +00:00
Philipp Schuster
935332bc42 misc: unrelated misc code improvements 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-17 16:59:49 +00:00
Philipp Schuster
e4fd066d82 misc: improve developer experience of cargo clippy 
A major improvement to the developer experience of clippy in
Cloud Hypervisor.

1. Make `cargo clippy` just work with the same lints we use in CI
2. Simplify adding new lints

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-17 16:59:49 +00:00
Philipp Schuster
a7fa3a0c86 vm-migration: better naming + unittests 
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com
 2025-11-17 14:34:54 +00:00
Julian Stecklina
b6c266c880 vmm: avoid creating large temporary vector during migration 
... by just passing the iterator along. For large VMs this bitmap is
gigantic. A 12TB VM has 384MB of dirty bitmap.

With all these optimizations from the previous commits in place, we
see quite the improvement when it comes to scanning the dirty bitmap.

For a bitmap with 1% bits (randomly) set, dirty_log() takes:

Original code: 2166ms (100.0%)
New code:       382ms ( 17.6%)

on my system. The sparser the dirty bitmap the faster. Scanning an
empty bitmap is 100x faster. For a 5% populated bitmap we are still 3x
faster.

If someone wants to play with this, there is a benchmark harness here:
https://github.com/blitz/chv-bitmap-bench

On-behalf-of: SAP julian.stecklina@sap.com
Signed-off-by: Julian Stecklina <julian.stecklina@cyberus-technology.de>
 2025-11-17 14:34:54 +00:00