Re: [PATCH v4 07/16] KVM: x86/pmu: Add IA32_PEBS_ENABLE MSR emulation for extended PEBS

On Mon, Mar 29, 2021 at 01:41:28PM +0800, Like Xu wrote: > + if (vcpu->arch.perf_capabilities & PERF_CAP_PEBS_FORMAT) { > + if (vcpu->arch.perf_capabilities & PERF_CAP_PEBS_BASELINE) { > + pmu->pebs_enable_mask = ~pmu->global_ctrl; > +

Re: [PATCH v4 07/16] KVM: x86/pmu: Add IA32_PEBS_ENABLE MSR emulation for extended PEBS

On Mon, Mar 29, 2021 at 01:41:28PM +0800, Like Xu wrote: > diff --git a/arch/x86/include/asm/msr-index.h > b/arch/x86/include/asm/msr-index.h > index 546d6ecf0a35..9afcad882f4f 100644 > --- a/arch/x86/include/asm/msr-index.h > +++ b/arch/x86/include/asm/msr-index.h > @@ -186,6 +186,12 @@ >

[PATCH v4 07/16] KVM: x86/pmu: Add IA32_PEBS_ENABLE MSR emulation for extended PEBS

If IA32_PERF_CAPABILITIES.PEBS_BASELINE [bit 14] is set, the IA32_PEBS_ENABLE MSR exists and all architecturally enumerated fixed and general purpose counters have corresponding bits in IA32_PEBS_ENABLE that enable generation of PEBS records. The general-purpose counter bits start at bit