From 2ba9047424fc7243c63ac57f5fdfa754aa895e3c Mon Sep 17 00:00:00 2001
From: Jim Mattson <jmattson@google.com>
Date: Fri, 14 Jan 2022 21:24:30 -0800
Subject: [PATCH] selftests: kvm/x86: Introduce x86_model()
Extract the x86 model number from CPUID.01H:EAX.
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220115052431.447232-6-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
tools/testing/selftests/kvm/include/x86_64/processor.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h
index 4eb73959ce056..1224478279542 100644
--- a/tools/testing/selftests/kvm/include/x86_64/processor.h
+++ b/tools/testing/selftests/kvm/include/x86_64/processor.h
@@ -378,6 +378,11 @@ static inline unsigned int x86_family(unsigned int eax)
return x86;
}
+static inline unsigned int x86_model(unsigned int eax)
+{
+ return ((eax >> 12) & 0xf0) | ((eax >> 4) & 0x0f);
+}
+
struct kvm_x86_state *vcpu_save_state(struct kvm_vm *vm, uint32_t vcpuid);
void vcpu_load_state(struct kvm_vm *vm, uint32_t vcpuid,
struct kvm_x86_state *state);
--
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