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    SubjectRe: [PATCH v4 00/12] KVM: x86: Add AMD Guest PerfMonV2 PMU support
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    On 7/4/2023 10:02 am, Sean Christopherson wrote:
    > On Tue, 14 Feb 2023 13:07:45 +0800, Like Xu wrote:
    >> Starting with Zen4, core PMU on AMD platforms such as Genoa and
    >> Ryzen-7000 will support PerfMonV2, and it is also compatible with
    >> legacy PERFCTR_CORE behavior and msr addresses.
    >>
    >> If you don't have access to the hardware specification, the commits
    >> d6d0c7f681fd..7685665c390d for host perf can also bring a quick
    >> overview. Its main change is the addition of three msr's equivalent
    >> to Intel V2, namely global_ctrl, global_status, global_status_clear.
    >>
    >> [...]
    >
    > Applied 1-3 to kvm-x86 pmu. Note, I grabbed my full version of patch 2 that
    > also converts the "get" path.
    >
    > My apologies for not reviewing this earlier in the cycle. I need to pivot to
    > TDX+SNP stuff "soon", so AMD v2 support will likely miss 6.4, but I'll prioritize
    > reviewing and merging support in 6.5.

    Thanks for your review time.

    Since the biggest points of discussion so far is around
    [PATCH v4 11/12] KVM: x86/svm/pmu: Add AMD PerfMonV2 support,
    so once the proposal on that part is confirmed by you, V5 is already in sight.

    >
    > Thanks!
    >
    > [01/12] KVM: x86/pmu: Rename pmc_is_enabled() to pmc_is_globally_enabled()
    > https://github.com/kvm-x86/linux/commit/cdd2fbf6360e
    > [02/12] KVM: VMX: Refactor intel_pmu_{g,}set_msr() to align with other helpers
    > https://github.com/kvm-x86/linux/commit/8bca8c5ce40b
    > [03/12] KVM: x86/pmu: Rewrite reprogram_counters() to improve performance
    > https://github.com/kvm-x86/linux/commit/649bccd7fac9
    >
    > --
    > https://github.com/kvm-x86/linux/tree/next
    > https://github.com/kvm-x86/linux/tree/fixes

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