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

[Xu, Like]

On 2020/5/29 16:47, Paolo Bonzini wrote:
> 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@xxxxxxxxxx/
> >
> > 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.
Yes, we all know you're busy.

I will be very grateful if you could comment the KVM part for the LBR 
feature. :D

https://lore.kernel.org/kvm/20200514083054.62538-1-like.xu@xxxxxxxxxxxxxxx/

Thanks,
Like Xu
> Paolo