Messages in this thread | | | Subject | Re: [PATCH v14 02/11] KVM: x86/pmu: Set up IA32_PERF_CAPABILITIES if PDCM bit is available | From | Paolo Bonzini <> | Date | Tue, 2 Feb 2021 12:48:10 +0100 |
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On 01/02/21 06:10, Like Xu wrote: > > - if (guest_cpuid_has(vcpu, X86_FEATURE_PDCM)) > - vcpu->arch.perf_capabilities = vmx_get_perf_capabilities();
Why remove this "if"?
> pmu->nr_arch_gp_counters = min_t(int, eax.split.num_counters, > x86_pmu.num_counters_gp); > @@ -405,6 +402,8 @@ static void intel_pmu_init(struct kvm_vcpu *vcpu) > pmu->fixed_counters[i].idx = i + INTEL_PMC_IDX_FIXED; > pmu->fixed_counters[i].current_config = 0; > } > + > + vcpu->arch.perf_capabilities = 0;
Paolo
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