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| author | Jim Mattson <jmattson@google.com> | 2022-01-15 08:24:30 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-19 20:12:15 +0300 |
| commit | 2ba9047424fc7243c63ac57f5fdfa754aa895e3c (patch) | |
| tree | 58faf6f69cea4cc8fc18b94a09d91ea22af06f92 /tools | |
| parent | 398f9240f90f4168f5882180723f743f7b682049 (diff) | |
| download | linux-2ba9047424fc7243c63ac57f5fdfa754aa895e3c.tar.xz | |
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>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/processor.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h index 4eb73959ce05..122447827954 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); |