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KVM: SVM: add rdmsr support for AMD event registers 

Current KVM only supports RDMSR for K7_EVNTSEL0 and K7_PERFCTR0
MSRs. Reading the rest MSRs will trigger KVM to inject #GP into
guest VM. This causes a warning message "Failed to access perfctr
msr (MSR c0010001 is ffffffffffffffff)" on AMD host. This patch
adds RDMSR support for all K7_EVNTSELn and K7_PERFCTRn registers
and thus supresses the warning message.

Signed-off-by: Wei Huang <wehuang@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Wei Huang 2014-08-13 12:06:14 -04:00 committed by Paolo Bonzini
parent 30d1e0e806
commit dc9b2d933a
1 changed files with 6 additions and 0 deletions
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6
arch/x86/kvm/x86.c
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@ -2419,7 +2419,13 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
case MSR_K7_HWCR:
case MSR_VM_HSAVE_PA:
case MSR_K7_EVNTSEL0:
case MSR_K7_EVNTSEL1:
case MSR_K7_EVNTSEL2:
case MSR_K7_EVNTSEL3:
case MSR_K7_PERFCTR0:
case MSR_K7_PERFCTR1:
case MSR_K7_PERFCTR2:
case MSR_K7_PERFCTR3:
case MSR_K8_INT_PENDING_MSG:
case MSR_AMD64_NB_CFG:
case MSR_FAM10H_MMIO_CONF_BASE: