diff options
Diffstat (limited to 'arch/x86/kvm/mmu.h')
| -rw-r--r-- | arch/x86/kvm/mmu.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index 6a2a97d8015b..1fab69c0b2f3 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -86,10 +86,25 @@ static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) return kvm_mmu_load(vcpu); } +static inline unsigned long kvm_get_pcid(struct kvm_vcpu *vcpu, gpa_t cr3) +{ + BUILD_BUG_ON((X86_CR3_PCID_MASK & PAGE_MASK) != 0); + + return kvm_read_cr4_bits(vcpu, X86_CR4_PCIDE) + ? cr3 & X86_CR3_PCID_MASK + : 0; +} + +static inline unsigned long kvm_get_active_pcid(struct kvm_vcpu *vcpu) +{ + return kvm_get_pcid(vcpu, kvm_read_cr3(vcpu)); +} + static inline void kvm_mmu_load_cr3(struct kvm_vcpu *vcpu) { if (VALID_PAGE(vcpu->arch.mmu.root_hpa)) - vcpu->arch.mmu.set_cr3(vcpu, vcpu->arch.mmu.root_hpa); + vcpu->arch.mmu.set_cr3(vcpu, vcpu->arch.mmu.root_hpa | + kvm_get_active_pcid(vcpu)); } /* |