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nvme: fixup for keepalive tests#3998

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babayet2 wants to merge 3 commits into
microsoft:mainfrom
babayet2:fused-fixup
Open

nvme: fixup for keepalive tests#3998
babayet2 wants to merge 3 commits into
microsoft:mainfrom
babayet2:fused-fixup

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Improves the keepalive tests to actually run servicing, and adds a panic when there is a write to the admin queue in fused mode

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babayet2 requested review from a team as code owners July 22, 2026 01:27
Copilot AI review requested due to automatic review settings July 22, 2026 01:27

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Pull request overview

This PR updates the OpenHCL NVMe keepalive servicing coverage by making the fused-keepalive test actually cross a servicing boundary, and adds a restore-time invariant check for fused keepalive devices to detect unexpected admin-queue activity.

Changes:

  • Update the fused keepalive NVMe test to restart OpenHCL with NVMe keepalive enabled and re-validate fused vs non-fused behavior post-servicing.
  • Add a restore-time check that panics if a fused-keepalive device is restored with a non-empty admin queue.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File Description
vmm_tests/vmm_tests/tests/tests/multiarch/openhcl_servicing.rs Extends the fused keepalive test to perform an OpenHCL restart (servicing) with NVMe keepalive enabled and re-check device fusion state afterward.
vm/devices/storage/disk_nvme/nvme_driver/src/driver.rs Adds a fused-keepalive restore-time assertion by panicking when pending admin commands exist during admin queue restore.

Comment on lines +910 to +916
if fused_keepalive_device && pending_commands_count > 0 {
panic!(
"fused keepalive device {pci_id} restored with a non-empty admin \
queue ({pending_commands_count} pending commands); fused devices \
must not issue admin commands after init"
);
}
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: ad2f5a78-7441-43d3-9679-9de10f68a9c3
Copilot AI review requested due to automatic review settings July 22, 2026 05:48

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Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

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3 participants