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@ShadowCurse
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Changes

  • fix clippy warnings
  • replace u32 virtio device type with actual VirtioDeviceType enum
  • add a common id method to VirtioDevice trait
  • implement a common kick method in VirtioDevice trait that re-triggers queue eventfds instead of
    doing manual queue reprocessing

Reason

Maintenance

License Acceptance

By submitting this pull request, I confirm that my contribution is made under
the terms of the Apache 2.0 license. For more information on following Developer
Certificate of Origin and signing off your commits, please check
CONTRIBUTING.md.

PR Checklist

  • I have read and understand CONTRIBUTING.md.
  • I have run tools/devtool checkbuild --all to verify that the PR passes
    build checks on all supported architectures.
  • I have run tools/devtool checkstyle to verify that the PR passes the
    automated style checks.
  • I have described what is done in these changes, why they are needed, and
    how they are solving the problem in a clear and encompassing way.
  • I have updated any relevant documentation (both in code and in the docs)
    in the PR.
  • I have mentioned all user-facing changes in CHANGELOG.md.
  • If a specific issue led to this PR, this PR closes the issue.
  • When making API changes, I have followed the
    Runbook for Firecracker API changes.
  • I have tested all new and changed functionalities in unit tests and/or
    integration tests.
  • I have linked an issue to every new TODO.

  • This functionality cannot be added in rust-vmm.

@ShadowCurse ShadowCurse force-pushed the maintenance3 branch 3 times, most recently from ae25a1d to ed4d917 Compare December 4, 2025 15:11
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codecov bot commented Dec 4, 2025

Codecov Report

❌ Patch coverage is 68.69565% with 36 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.22%. Comparing base (a8f5d78) to head (a0966ff).

Files with missing lines Patch % Lines
src/vmm/src/devices/virtio/device.rs 13.33% 13 Missing ⚠️
src/vmm/src/devices/virtio/balloon/device.rs 25.00% 12 Missing ⚠️
src/vmm/src/devices/virtio/vsock/device.rs 42.85% 4 Missing ⚠️
.../vmm/src/devices/virtio/block/vhost_user/device.rs 70.00% 3 Missing ⚠️
src/vmm/src/devices/virtio/pmem/device.rs 0.00% 3 Missing ⚠️
src/vmm/src/devices/virtio/block/device.rs 80.00% 1 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #5557      +/-   ##
==========================================
- Coverage   83.24%   83.22%   -0.02%     
==========================================
  Files         277      277              
  Lines       29263    29282      +19     
==========================================
+ Hits        24359    24369      +10     
- Misses       4904     4913       +9     
Flag Coverage Δ
5.10-m5n.metal 83.56% <68.69%> (-0.02%) ⬇️
5.10-m6a.metal 82.89% <68.69%> (-0.02%) ⬇️
5.10-m6g.metal 80.17% <68.69%> (-0.03%) ⬇️
5.10-m6i.metal 83.56% <68.69%> (-0.02%) ⬇️
5.10-m7a.metal-48xl 82.89% <68.69%> (-0.02%) ⬇️
5.10-m7g.metal 80.17% <68.69%> (-0.03%) ⬇️
5.10-m7i.metal-24xl 83.53% <68.69%> (-0.02%) ⬇️
5.10-m7i.metal-48xl 83.53% <68.69%> (-0.02%) ⬇️
5.10-m8g.metal-24xl 80.16% <68.69%> (-0.03%) ⬇️
5.10-m8g.metal-48xl 80.16% <68.69%> (-0.03%) ⬇️
6.1-m5n.metal 83.59% <68.69%> (-0.02%) ⬇️
6.1-m6a.metal 82.93% <68.69%> (-0.02%) ⬇️
6.1-m6g.metal 80.16% <68.69%> (-0.03%) ⬇️
6.1-m6i.metal 83.59% <68.69%> (-0.02%) ⬇️
6.1-m7a.metal-48xl 82.91% <68.69%> (-0.02%) ⬇️
6.1-m7g.metal 80.17% <68.69%> (-0.03%) ⬇️
6.1-m7i.metal-24xl 83.60% <68.69%> (-0.02%) ⬇️
6.1-m7i.metal-48xl 83.60% <68.69%> (-0.02%) ⬇️
6.1-m8g.metal-24xl 80.16% <68.69%> (-0.03%) ⬇️
6.1-m8g.metal-48xl 80.16% <68.69%> (-0.03%) ⬇️

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@ShadowCurse ShadowCurse force-pushed the maintenance3 branch 2 times, most recently from bb64ff6 to ba3cd70 Compare December 4, 2025 15:40
Replace fmt.toml with new rustfmt.toml

Signed-off-by: Egor Lazarchuk <yegorlz@amazon.co.uk>
@ShadowCurse ShadowCurse self-assigned this Dec 4, 2025
@ShadowCurse ShadowCurse added Status: Awaiting review Indicates that a pull request is ready to be reviewed Type: Enhancement Indicates new feature requests labels Dec 4, 2025
@ShadowCurse ShadowCurse marked this pull request as ready for review December 4, 2025 17:02
src/vmm/src/devices/virtio/block/virtio/device.rs Outdated Show resolved Hide resolved
Fix new clippy warnings

Signed-off-by: Egor Lazarchuk <yegorlz@amazon.co.uk>
Instead of using `u32` values directly from generated `virtio_ids`
create an enum backed by u8 with all types we actually use

Signed-off-by: Egor Lazarchuk <yegorlz@amazon.co.uk>
Add a trait method to VirtioDevice to get a unique device id.
This can be used in default imps of some other methods to
print current device id in case of an error/warning etc.

Signed-off-by: Egor Lazarchuk <yegorlz@amazon.co.uk>
Replace different `kick` implementations with a default implementation
in the `VirtioDevice` trait.
Change the `kick` logic to just re-trigger queue events instead of
manually calling different internal queue processing functions.

Signed-off-by: Egor Lazarchuk <yegorlz@amazon.co.uk>
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