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KVM: x86: Ignore reads to EVNTSEL MSRs

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We ignore writes to the performance counters and performance event
selector registers already. Kaspersky antivirus reads the eventsel
MSR causing it to crash with the current behaviour.

Return 0 as data when the eventsel registers are read to stop the
crash.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Amit Shah 2009-03-20 12:39:00 +05:30 committed by Avi Kivity
parent f00be0cae4
commit 7fe29e0faa
1 changed files with 2 additions and 0 deletions
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2
arch/x86/kvm/x86.c
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@ -895,6 +895,8 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
case MSR_IA32_LASTINTFROMIP:
case MSR_IA32_LASTINTTOIP:
case MSR_VM_HSAVE_PA:
case MSR_P6_EVNTSEL0:
case MSR_P6_EVNTSEL1:
data = 0;
break;
case MSR_MTRRcap: