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[v2,52/66] KVM: x86: Use kvm_cpu_caps to detect Intel PT support

Message ID 20200302235709.27467-53-sean.j.christopherson@intel.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86: Introduce KVM cpu caps | expand

Commit Message

Sean Christopherson March 2, 2020, 11:56 p.m. UTC 
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>
---
 arch/x86/kvm/cpuid.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index c0ee0cb33a37..eebd7f613f67 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -509,7 +509,6 @@  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();
@@ -680,7 +679,7 @@  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;
 		}