linux-kernel - Re: [PATCH v2 00/20] KVM: selftests: Fixes and cleanups for dirty_log

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Message-ID: <173958028019.1189673.881553465537742211.b4-ty@google.com>
Date: Fri, 14 Feb 2025 16:50:33 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Peter Xu <peterx@...hat.com>, Maxim Levitsky <mlevitsk@...hat.com>
Subject: Re: [PATCH v2 00/20] KVM: selftests: Fixes and cleanups for dirty_log_test

On Fri, 10 Jan 2025 16:29:44 -0800, Sean Christopherson wrote:
> Fix a variety of flaws and false failures/passes in dirty_log_test, and
> drop code/behavior that adds complexity while adding little-to-no benefit.
> 
> Lots of details in the changelogs, and a partial list of complaints[1] in
> Maxim's original thread[2].
> 
> [1] https://lore.kernel.org/all/Z1vR25ylN5m_DRSy@google.com
> [2] https://lore.kernel.org/all/20241211193706.469817-1-mlevitsk@redhat.com
> 
> [...]

Applied to kvm-x86 selftests, thanks!

[01/20] KVM: selftests: Support multiple write retires in dirty_log_test
        https://github.com/kvm-x86/linux/commit/fe49f8005257
[02/20] KVM: selftests: Sync dirty_log_test iteration to guest *before* resuming
        https://github.com/kvm-x86/linux/commit/67428ee7b746
[03/20] KVM: selftests: Drop signal/kick from dirty ring testcase
        https://github.com/kvm-x86/linux/commit/ff0efc77bc96
[04/20] KVM: selftests: Drop stale srandom() initialization from dirty_log_test
        https://github.com/kvm-x86/linux/commit/1230907864d7
[05/20] KVM: selftests: Precisely track number of dirty/clear pages for each iteration
        https://github.com/kvm-x86/linux/commit/af2d85d34d15
[06/20] KVM: selftests: Read per-page value into local var when verifying dirty_log_test
        https://github.com/kvm-x86/linux/commit/f2228aa08324
[07/20] KVM: selftests: Continuously reap dirty ring while vCPU is running
        https://github.com/kvm-x86/linux/commit/9b1feec83e1a
[08/20] KVM: selftests: Limit dirty_log_test's s390x workaround to s390x
        https://github.com/kvm-x86/linux/commit/deb8b8400e31
[09/20] KVM: selftests: Honor "stop" request in dirty ring test
        https://github.com/kvm-x86/linux/commit/f3629c0ef167
[10/20] KVM: selftests: Keep dirty_log_test vCPU in guest until it needs to stop
        https://github.com/kvm-x86/linux/commit/0a818b3541af
[11/20] KVM: selftests: Post to sem_vcpu_stop if and only if vcpu_stop is true
        https://github.com/kvm-x86/linux/commit/9a91f6542435
[12/20] KVM: selftests: Use continue to handle all "pass" scenarios in dirty_log_test
        https://github.com/kvm-x86/linux/commit/c616f36a1002
[13/20] KVM: selftests: Print (previous) last_page on dirty page value mismatch
        https://github.com/kvm-x86/linux/commit/24b9a2a61377
[14/20] KVM: selftests: Collect *all* dirty entries in each dirty_log_test iteration
        https://github.com/kvm-x86/linux/commit/d0bd72cb9160
[15/20] KVM: sefltests: Verify value of dirty_log_test last page isn't bogus
        https://github.com/kvm-x86/linux/commit/485e27ed208f
[16/20] KVM: selftests: Ensure guest writes min number of pages in dirty_log_test
        https://github.com/kvm-x86/linux/commit/73eaa2aa14b7
[17/20] KVM: selftests: Tighten checks around prev iter's last dirty page in ring
        https://github.com/kvm-x86/linux/commit/2020d3b77a5a
[18/20] KVM: selftests: Set per-iteration variables at the start of each iteration
        https://github.com/kvm-x86/linux/commit/2680dcfb34e2
[19/20] KVM: selftests: Fix an off-by-one in the number of dirty_log_test iterations
        https://github.com/kvm-x86/linux/commit/7f225650e099
[20/20] KVM: selftests: Allow running a single iteration of dirty_log_test
        https://github.com/kvm-x86/linux/commit/dae7d81e8d58

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https://github.com/kvm-x86/linux/tree/next