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KVM: x86: Use kvm_cpu_caps to detect Intel PT support 

Check for Intel PT using kvm_cpu_cap_has() to pave the way toward
eliminating ->pt_supported().

No functional change intended.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2020-03-02 15:56:55 -08:00 committed by Paolo Bonzini
parent 93c380e7b5
commit dd69cc2542
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kvm/cpuid.c
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@ -504,7 +504,6 @@ static inline int __do_cpuid_func(struct kvm_cpuid_array *array, u32 function)
{
struct kvm_cpuid_entry2 *entry;
int r, i, max_idx;
unsigned f_intel_pt = kvm_x86_ops->pt_supported() ? F(INTEL_PT) : 0;
/* all calls to cpuid_count() should be made on the same cpu */
get_cpu();
@ -675,7 +674,7 @@ static inline int __do_cpuid_func(struct kvm_cpuid_array *array, u32 function)
break;
/* Intel PT */
case 0x14:
if (!f_intel_pt) {
if (!kvm_cpu_cap_has(X86_FEATURE_INTEL_PT)) {
entry->eax = entry->ebx = entry->ecx = entry->edx = 0;
break;
}