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-rw-r--r--arch/x86/kvm/vmx.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6a3a4038f3b9..d493a97e7887 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -921,6 +921,18 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
case MSR_IA32_TIME_STAMP_COUNTER:
guest_write_tsc(data);
break;
+ case MSR_P6_PERFCTR0:
+ case MSR_P6_PERFCTR1:
+ case MSR_P6_EVNTSEL0:
+ case MSR_P6_EVNTSEL1:
+ /*
+ * Just discard all writes to the performance counters; this
+ * should keep both older linux and windows 64-bit guests
+ * happy
+ */
+ pr_unimpl(vcpu, "unimplemented perfctr wrmsr: 0x%x data 0x%llx\n", msr_index, data);
+
+ break;
default:
vmx_load_host_state(vmx);
msr = find_msr_entry(vmx, msr_index);