linux-kernel - Re: [PATCH v2 0/7] KVM: selftests: Add tests for pmu event filter

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Message-ID: <CAFg_LQVfECWsmcSXJWnnyJK5mZAbjdCTX-RXP3aoDAECTspqkA@mail.gmail.com>
Date:   Mon, 22 May 2023 11:33:51 +0800
From:   Jinrong Liang <ljr.kernel@...il.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Like Xu <like.xu.linux@...il.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Shuah Khan <shuah@...nel.org>,
        Aaron Lewis <aaronlewis@...gle.com>,
        David Matlack <dmatlack@...gle.com>,
        Vishal Annapurve <vannapurve@...gle.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        Jinrong Liang <cloudliang@...cent.com>,
        linux-kselftest@...r.kernel.org, linux-doc@...r.kernel.org,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/7] KVM: selftests: Add tests for pmu event filter

Jinrong Liang <ljr.kernel@...il.com> 于2023年4月20日周四 18:46写道：
>
> From: Jinrong Liang <cloudliang@...cent.com>
>
> From: Jinrong Liang <cloudliang@...cent.com>
>
> Hi,
>
> This patch set adds some tests to ensure consistent PMU performance event
> filter behavior. Specifically, the patches aim to improve KVM's PMU event
> filter by strengthening the test coverage, adding documentation, and making
> other small changes.
>
> The first patch replaces int with uint32_t for nevents to ensure consistency
> and readability in the code. The second patch adds fixed_counter_bitmap to
> create_pmu_event_filter() to support the use of the same creator to control
> the use of guest fixed counters. The third patch adds test cases for
> unsupported input values in PMU filter, including unsupported "action"
> values, unsupported "flags" values, and unsupported "nevents" values. Also,
> it tests setting non-existent fixed counters in the fixed bitmap doesn't
> fail.
>
> The fourth patch updates the documentation for KVM_SET_PMU_EVENT_FILTER ioctl
> to include a detailed description of how fixed performance events are handled
> in the pmu filter. The fifth patch adds tests to cover that pmu_event_filter
> works as expected when applied to fixed performance counters, even if there
> is no fixed counter exists. The sixth patch adds a test to ensure that setting
> both generic and fixed performance event filters does not affect the consistency
> of the fixed performance filter behavior in KVM. The seventh patch adds a test
> to verify the behavior of the pmu event filter when an incomplete
> kvm_pmu_event_filter structure is used.
>
> These changes help to ensure that KVM's PMU event filter functions as expected
> in all supported use cases. These patches have been tested and verified to
> function properly.
>
> Thanks for your review and feedback.
>
> Sincerely,
> Jinrong Liang
>
> Previous:
> https://lore.kernel.org/kvm/20230414110056.19665-1-cloudliang@tencent.com
>
> v2:
> - Wrap the code from the documentation in a block of code; (Bagas Sanjaya)
>
> Jinrong Liang (7):
>   KVM: selftests: Replace int with uint32_t for nevents
>   KVM: selftests: Apply create_pmu_event_filter() to fixed ctrs
>   KVM: selftests: Test unavailable event filters are rejected
>   KVM: x86/pmu: Add documentation for fixed ctr on PMU filter
>   KVM: selftests: Check if pmu_event_filter meets expectations on fixed
>     ctrs
>   KVM: selftests: Check gp event filters without affecting fixed event
>     filters
>   KVM: selftests: Test pmu event filter with incompatible
>     kvm_pmu_event_filter
>
>  Documentation/virt/kvm/api.rst                |  21 ++
>  .../kvm/x86_64/pmu_event_filter_test.c        | 239 ++++++++++++++++--
>  2 files changed, 243 insertions(+), 17 deletions(-)
>
>
> base-commit: a25497a280bbd7bbcc08c87ddb2b3909affc8402
> --
> 2.31.1
>

Polite ping.

Should I post version 3 to fix the problem of two "From: Jinrong Liang
<cloudliang@...cent.com>"?

Thanks