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| author | Binbin Wu <binbin.wu@linux.intel.com> | 2023-09-13 20:42:17 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-11-28 17:54:04 -0800 |
| commit | 2c49db455ee27c72a680c9e4fad1c12433902ee3 (patch) | |
| tree | 1a6c9b247b3fd1282324250d4426f5724525c940 /arch/x86/kvm/cpuid.h | |
| parent | a130066f74008858ac425b7497d231742474a0ea (diff) | |
| download | linux-2c49db455ee27c72a680c9e4fad1c12433902ee3.tar.gz linux-2c49db455ee27c72a680c9e4fad1c12433902ee3.tar.bz2 linux-2c49db455ee27c72a680c9e4fad1c12433902ee3.zip | |
KVM: x86: Add & use kvm_vcpu_is_legal_cr3() to check CR3's legality
Add and use kvm_vcpu_is_legal_cr3() to check CR3's legality to provide
a clear distinction between CR3 and GPA checks. This will allow exempting
bits from kvm_vcpu_is_legal_cr3() without affecting general GPA checks,
e.g. for upcoming features that will use high bits in CR3 for feature
enabling.
No functional change intended.
Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
Tested-by: Xuelian Guo <xuelian.guo@intel.com>
Link: https://lore.kernel.org/r/20230913124227.12574-7-binbin.wu@linux.intel.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/cpuid.h')
| -rw-r--r-- | arch/x86/kvm/cpuid.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h index 0b90532b6e26..5fd3f2d1ca14 100644 --- a/arch/x86/kvm/cpuid.h +++ b/arch/x86/kvm/cpuid.h @@ -279,4 +279,9 @@ static __always_inline bool guest_can_use(struct kvm_vcpu *vcpu, vcpu->arch.governed_features.enabled); } +static inline bool kvm_vcpu_is_legal_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) +{ + return kvm_vcpu_is_legal_gpa(vcpu, cr3); +} + #endif |