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Diffstat (limited to 'arch/x86/kvm/cpuid.c')
-rw-r--r--arch/x86/kvm/cpuid.c27
1 files changed, 8 insertions, 19 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index de6d44e07e34..211f4566641e 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -868,7 +868,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_array *array, u32 function)
case 9:
break;
case 0xa: { /* Architectural Performance Monitoring */
- struct x86_pmu_capability cap;
union cpuid10_eax eax;
union cpuid10_edx edx;
@@ -877,30 +876,20 @@ static inline int __do_cpuid_func(struct kvm_cpuid_array *array, u32 function)
break;
}
- perf_get_x86_pmu_capability(&cap);
+ eax.split.version_id = kvm_pmu_cap.version;
+ eax.split.num_counters = kvm_pmu_cap.num_counters_gp;
+ eax.split.bit_width = kvm_pmu_cap.bit_width_gp;
+ eax.split.mask_length = kvm_pmu_cap.events_mask_len;
+ edx.split.num_counters_fixed = kvm_pmu_cap.num_counters_fixed;
+ edx.split.bit_width_fixed = kvm_pmu_cap.bit_width_fixed;
- /*
- * The guest architecture pmu is only supported if the architecture
- * pmu exists on the host and the module parameters allow it.
- */
- if (!cap.version || !enable_pmu)
- memset(&cap, 0, sizeof(cap));
-
- eax.split.version_id = min(cap.version, 2);
- eax.split.num_counters = cap.num_counters_gp;
- eax.split.bit_width = cap.bit_width_gp;
- eax.split.mask_length = cap.events_mask_len;
-
- edx.split.num_counters_fixed =
- min(cap.num_counters_fixed, KVM_PMC_MAX_FIXED);
- edx.split.bit_width_fixed = cap.bit_width_fixed;
- if (cap.version)
+ if (kvm_pmu_cap.version)
edx.split.anythread_deprecated = 1;
edx.split.reserved1 = 0;
edx.split.reserved2 = 0;
entry->eax = eax.full;
- entry->ebx = cap.events_mask;
+ entry->ebx = kvm_pmu_cap.events_mask;
entry->ecx = 0;
entry->edx = edx.full;
break;