[1/2] KVM: x86: add guest_cpuid_is_intel

Commit Message

Maxim Levitsky April 1, 2021, 11:16 a.m. UTC

This is similar to existing 'guest_cpuid_is_amd_or_hygon'

Signed-off-by: Maxim Levitsky <[e-mail]>
---
 arch/x86/kvm/cpuid.h | 8 ++++++++
 1 file changed, 8 insertions(+)

Patch

diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index 2a0c5064497f..ded84d244f19 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -248,6 +248,14 @@  static inline bool guest_cpuid_is_amd_or_hygon(struct kvm_vcpu *vcpu)
 		is_guest_vendor_hygon(best->ebx, best->ecx, best->edx));
 }
 
+static inline bool guest_cpuid_is_intel(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *best;
+
+	best = kvm_find_cpuid_entry(vcpu, 0, 0);
+	return best && is_guest_vendor_intel(best->ebx, best->ecx, best->edx);
+}
+
 static inline int guest_cpuid_family(struct kvm_vcpu *vcpu)
 {
 	struct kvm_cpuid_entry2 *best;