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KVM: x86: Init vcpu->arch.perf_capabilities in common x86 code

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Initialize vcpu->arch.perf_capabilities in x86's kvm_arch_vcpu_create()
instead of deferring initialization to vendor code.  For better or worse,
common x86 handles reads and writes to the MSR, and so common x86 should
also handle initializing the MSR.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20221006000314.73240-7-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson
2022-10-06 00:03:12 +00:00
committed by Paolo Bonzini
parent bec46859fb
commit 6c6f82bea9
2 changed files with 2 additions and 1 deletions
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1
arch/x86/kvm/vmx/pmu_intel.c
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@@ -631,7 +631,6 @@ static void intel_pmu_init(struct kvm_vcpu *vcpu)
pmu->fixed_counters[i].current_config = 0;
}
vcpu->arch.perf_capabilities = kvm_caps.supported_perf_cap;
lbr_desc->records.nr = 0;
lbr_desc->event = NULL;
lbr_desc->msr_passthrough = false;

2
arch/x86/kvm/x86.c
View File

@@ -11893,6 +11893,8 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
vcpu->arch.pat = MSR_IA32_CR_PAT_DEFAULT;
kvm_async_pf_hash_reset(vcpu);
vcpu->arch.perf_capabilities = kvm_caps.supported_perf_cap;
kvm_pmu_init(vcpu);
vcpu->arch.pending_external_vector = -1;