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Commit 1f3ee616 authored Jun 30, 2009 by Amit Shah Committed by Avi Kivity Sep 10, 2009

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>

parent eab4b8aa

arch/x86/kvm/x86.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1048,9 +1048,12 @@ int kvm_get_msr_common(struct kvm_vcpu vcpu, u32 msr, u64 pdata)
		case MSR_K8_SYSCFG:
		case MSR_K7_HWCR:
		case MSR_VM_HSAVE_PA:
		case MSR_P6_PERFCTR0:
		case MSR_P6_PERFCTR1:
		case MSR_P6_EVNTSEL0:
		case MSR_P6_EVNTSEL1:
		case MSR_K7_EVNTSEL0:
		case MSR_K7_PERFCTR0:
		case MSR_K8_INT_PENDING_MSG:
		case MSR_AMD64_NB_CFG:
		case MSR_FAM10H_MMIO_CONF_BASE: