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authorAmit Shah <amit.shah@redhat.com>2009-06-30 06:54:28 -0400
committerAvi Kivity <avi@redhat.com>2009-09-10 01:33:21 -0400
commit1f3ee616dd21ff155f781c35509229bf2788c072 (patch)
tree5b2d4d5085cd1fa4691b2c78b5e4e023865c0f81 /arch/x86/kvm
parenteab4b8aa34fc64e3a91358e1612e6d059396193b (diff)
KVM: ignore reads to perfctr msrs
We ignore writes to the perfctr msrs. Ignore reads as well. Kaspersky antivirus crashes Windows guests if it can't read these MSRs. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/x86.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 92b5eddaa877..132c5100d4f4 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1048,9 +1048,12 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
1048 case MSR_K8_SYSCFG: 1048 case MSR_K8_SYSCFG:
1049 case MSR_K7_HWCR: 1049 case MSR_K7_HWCR:
1050 case MSR_VM_HSAVE_PA: 1050 case MSR_VM_HSAVE_PA:
1051 case MSR_P6_PERFCTR0:
1052 case MSR_P6_PERFCTR1:
1051 case MSR_P6_EVNTSEL0: 1053 case MSR_P6_EVNTSEL0:
1052 case MSR_P6_EVNTSEL1: 1054 case MSR_P6_EVNTSEL1:
1053 case MSR_K7_EVNTSEL0: 1055 case MSR_K7_EVNTSEL0:
1056 case MSR_K7_PERFCTR0:
1054 case MSR_K8_INT_PENDING_MSG: 1057 case MSR_K8_INT_PENDING_MSG:
1055 case MSR_AMD64_NB_CFG: 1058 case MSR_AMD64_NB_CFG:
1056 case MSR_FAM10H_MMIO_CONF_BASE: 1059 case MSR_FAM10H_MMIO_CONF_BASE: