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| author |   Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-02 15:56:32 -0800 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 17:58:16 +0100 |
| commit | e745e37d49771b8a06955f18c7a435830c0a4a5c (patch) | |
| tree | 05b7ffb83d000bbc2ff488a7a40533b5023d4320 /arch/x86/kvm/cpuid.h | |
| parent | KVM: x86: Introduce cpuid_entry_{change,set,clear}() mutators (diff) | |
| download | wireguard-linux-e745e37d49771b8a06955f18c7a435830c0a4a5c.tar.xz wireguard-linux-e745e37d49771b8a06955f18c7a435830c0a4a5c.zip | |
KVM: x86: Refactor cpuid_mask() to auto-retrieve the register
Use the recently introduced cpuid_entry_get_reg() to automatically get
the appropriate register when masking a CPUID entry.
No functional change intended.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/cpuid.h')
| -rw-r--r-- | arch/x86/kvm/cpuid.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h index de3c6c365a5a..407dc26c0633 100644 --- a/arch/x86/kvm/cpuid.h +++ b/arch/x86/kvm/cpuid.h @@ -167,6 +167,14 @@ static __always_inline void cpuid_entry_change(struct kvm_cpuid_entry2 *entry, *reg &= ~__feature_bit(x86_feature); } +static __always_inline void cpuid_entry_mask(struct kvm_cpuid_entry2 *entry, + enum cpuid_leafs leaf) +{ + u32 *reg = cpuid_entry_get_reg(entry, leaf * 32); + + *reg &= boot_cpu_data.x86_capability[leaf]; +} + static __always_inline u32 *guest_cpuid_get_register(struct kvm_vcpu *vcpu, unsigned int x86_feature) { |