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

From: Paolo Bonzini
Date: Fri May 29 2020 - 04:47:39 EST


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.

Paolo