linux-kernel - Re: [PATCH 0/7] KVM: selftests: Test the consistency of the PMU's CPUID and its features

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Message-ID: <ZG6Vg0RZhJLXxoFC@google.com>
Date:   Wed, 24 May 2023 15:53:55 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Like Xu <like.xu.linux@...il.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Jinrong Liang <cloudliang@...cent.com>,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH 0/7] KVM: selftests: Test the consistency of the PMU's
 CPUID and its features

On Thu, Mar 23, 2023, Like Xu wrote:
> Hi,
> 
> The KVM selfstests shows advantages over the KUT in terms of finding
> defects through flexible and varied guest settings form KVM user space.
> 
> This patch set tests whether Intel vPMU works properly with different
> Intel CPUID.0xA configurations, in which three issues were identified.
> It also provides test scaffolding and a sufficient number of pmu test cases
> to subsequently provide adequate code coverage of AMD vPMU or Intel
> complex features such as LBR or PEBS in selftests.
> 
> Please feel free to add more tests or share valuable comments.
> 
> Related bugs:
> KVM: x86/pmu: Fix emulation on Intel counters' bit width
> (https://lore.kernel.org/kvm/20230322093117.48335-1-likexu@tencent.com/)
> KVM: x86/pmu: Add Intel PMU supported fixed counters bit mask
> (https://lore.kernel.org/kvm/20230321112742.25255-1-likexu@tencent.com/)

Can you send a single combined series for these fixes, plus the tests in this
series?  I expect to apply the fixes before the tests, but I want to make it as
unlikely as possible that I forget and apply tests that fail.

Thanks!