diff options
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 6 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.c | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index e28d798f7277..976e3a57f9ea 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -774,6 +774,12 @@ void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx) if (!best) best = check_cpuid_limit(vcpu, function, index); + /* + * Perfmon not yet supported for L2 guest. + */ + if (is_guest_mode(vcpu) && function == 0xa) + best = NULL; + if (best) { *eax = best->eax; *ebx = best->ebx; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index e8f08e91592d..2ab504791190 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6986,6 +6986,8 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu) case EXIT_REASON_TASK_SWITCH: return 1; case EXIT_REASON_CPUID: + if (kvm_register_read(vcpu, VCPU_REGS_RAX) == 0xa) + return 0; return 1; case EXIT_REASON_HLT: return nested_cpu_has(vmcs12, CPU_BASED_HLT_EXITING); |