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Differential D44934

arm64/vmm: Handle VM_EXITCODE_SUSPENDED
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Authored by markj on Apr 24 2024, 10:29 PM.

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Reviewers

corvink
jhb
andrew
manu

Commits

rG1ee7a8fa58c3: arm64/vmm: Handle VM_EXITCODE_SUSPENDED

Summary

This is required for bhyve reboot to work. In particular, unless we
suspend vcpu threads here, vm_reinit() will fail with EBUSY.

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

markj created this revision.Apr 24 2024, 10:29 PM

Herald added a reviewer: manu. · View Herald TranscriptApr 24 2024, 10:29 PM

Herald added subscribers: emaste, imp. · View Herald Transcript

markj requested review of this revision.Apr 24 2024, 10:29 PM

Harbormaster completed remote builds in B57336: Diff 137635.Apr 24 2024, 10:29 PM

markj added a parent revision: D44933: vmrun.sh: Add arm64 support.Apr 24 2024, 10:29 PM

corvink added inline comments.Apr 26 2024, 7:11 AM

sys/arm64/vmm/vmm.c
1735	Where's the rendezvous handler called? Can we reuse the function from sys/amd64/vmm/vmm.c? If we can't share code, it might be a good idea to add a comment on top of the function like `Copied from sys/amd64/vmm/vmm.c. Keep it in sync!`.

markj added inline comments.Apr 26 2024, 1:19 PM

sys/arm64/vmm/vmm.c
1735	arm64 doesn't implement a rendezvous operation. In parallel I am working on merging this code with amd64 into sys/dev/vmm, so for now it is enough to try to minimize differences that appear with diff(1).

corvink accepted this revision.Apr 29 2024, 6:25 AM

This revision is now accepted and ready to land.Apr 29 2024, 6:25 AM

andrew accepted this revision.Apr 29 2024, 9:04 AM

Closed by commit rG1ee7a8fa58c3: arm64/vmm: Handle VM_EXITCODE_SUSPENDED (authored by markj). · Explain WhyApr 29 2024, 2:22 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rG1ee7a8fa58c3: arm64/vmm: Handle VM_EXITCODE_SUSPENDED.

Revision Contents
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Path

Size

sys/

arm64/

vmm/

53 lines

Diff 137844

sys/arm64/vmm/vmm.c

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