KVM: x86: add guest_cpuid_is_intel

This is similar to existing 'guest_cpuid_is_amd_or_hygon'

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210401111928.996871-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index 2a0c506..ded84d2 100644 (file)
--- 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;