qemu/enable_architectural_PMU_cp...

38 lines
1.2 KiB
Diff

commit a0fa82085e175bf8ce6d69a3f83695f81af2a649
Author: Gleb Natapov <gleb@redhat.com>
Date: Thu Dec 15 12:44:05 2011 +0200
enable architectural PMU cpuid leaf for kvm
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c
index 0b3af90..91a104b 100644
--- a/target-i386/cpuid.c
+++ b/target-i386/cpuid.c
@@ -1180,10 +1180,19 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
break;
case 0xA:
/* Architectural Performance Monitoring Leaf */
- *eax = 0;
- *ebx = 0;
- *ecx = 0;
- *edx = 0;
+ if (kvm_enabled()) {
+ KVMState *s = env->kvm_state;
+
+ *eax = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EAX);
+ *ebx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EBX);
+ *ecx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_ECX);
+ *edx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EDX);
+ } else {
+ *eax = 0;
+ *ebx = 0;
+ *ecx = 0;
+ *edx = 0;
+ }
break;
case 0xD:
/* Processor Extended State */