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Commit 270c6c79 authored by Gleb Natapov's avatar Gleb Natapov Committed by Avi Kivity
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KVM: x86 emulator: correctly mask pmc index bits in RDPMC instruction emulation 



Signed-off-by: default avatarGleb Natapov <gleb@redhat.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 565f3be2

arch/x86/kvm/pmu.c

+1 −1
Original line number Diff line number Diff line
@@ -413,7 +413,7 @@ int kvm_pmu_read_pmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data) 
	struct kvm_pmc *counters;

	u64 ctr;



	pmc &= (3u << 30) - 1;

	pmc &= ~(3u << 30);

	if (!fixed && pmc >= pmu->nr_arch_gp_counters)

		return 1;

	if (fixed && pmc >= pmu->nr_arch_fixed_counters)