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