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| author | Gleb Natapov <gleb@redhat.com> | 2012-02-16 16:44:11 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-03-08 16:10:24 +0400 |
| commit | 270c6c79f4e15e599f47174ecedad932463af7a2 (patch) | |
| tree | 551493b3175eb9ec80a92aab806fadc6ce0c758e /arch/x86/kvm/pmu.c | |
| parent | 565f3be2174611f364405bbea2d86e153c2e7e78 (diff) | |
| download | linux-270c6c79f4e15e599f47174ecedad932463af7a2.tar.xz | |
KVM: x86 emulator: correctly mask pmc index bits in RDPMC instruction emulation
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/pmu.c')
| -rw-r--r-- | arch/x86/kvm/pmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index 7aad5446f393..3e48c1d3edcd 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -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) |