linux-kernel - Re: [PATCH RESEND] Enable full width counting for KVM: x86/pmu

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Message-ID: <8ff77a5b-21fd-31f0-b97c-d188ec776808@redhat.com>
Date:   Fri, 29 May 2020 10:47:27 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Like Xu <like.xu@...ux.intel.com>
Cc:     Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND] Enable full width counting for KVM: x86/pmu

On 29/05/20 09:43, Like Xu wrote:
> Hi Paolo,
> 
> As you said, you will queue the v3 of KVM patch, but it looks like we
> are missing that part at the top of the kvm/queue tree.
> 
> For your convenience, let me resend v4 so that we can upstream this
> feature in the next merged window. Also this patch series includes
> patches for qemu and kvm-unit-tests. Please help review.
> 
> Previous:
> https://lore.kernel.org/kvm/f1c77c79-7ff8-c5f3-e011-9874a4336217@redhat.com/
> 
> Like Xu (1):
>   KVM: x86/pmu: Support full width counting
>   [kvm-unit-tests] x86: pmu: Test full-width counter writes 
>   [Qemu-devel] target/i386: define a new MSR based feature
>  word - FEAT_PERF_CAPABILITIES
> 
> Wei Wang (1):
>   KVM: x86/pmu: Tweak kvm_pmu_get_msr to pass 'struct msr_data' in
> 
>  arch/x86/include/asm/kvm_host.h |  1 +
>  arch/x86/kvm/cpuid.c            |  2 +-
>  arch/x86/kvm/pmu.c              |  4 +-
>  arch/x86/kvm/pmu.h              |  4 +-
>  arch/x86/kvm/svm/pmu.c          |  7 ++--
>  arch/x86/kvm/vmx/capabilities.h | 11 +++++
>  arch/x86/kvm/vmx/pmu_intel.c    | 71 +++++++++++++++++++++++++++------
>  arch/x86/kvm/vmx/vmx.c          |  3 ++
>  arch/x86/kvm/x86.c              |  6 ++-
>  9 files changed, 87 insertions(+), 22 deletions(-)
> 

Thanks, I was busy with AMD stuff as you saw. :)  I've queued it now.

Paolo