Current KVM only supports RDMSR for K7_EVNTSEL0 and K7_EVNTSEL0
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_EVNTSELn registers
and thus supresses the warning message.
Signed-off-by: Wei Huang <wehu...@redhat.com>
---
arch/x86/kvm/x86.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ef432f8..3f10ca2 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2399,7 +2399,13 @@ 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:
--
1.8.3.1
--
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