1 #ifndef __KVM_X86_MMU_H 2 #define __KVM_X86_MMU_H 3 4 #include <linux/kvm_host.h> 5 6 static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) 7 { 8 if (unlikely(vcpu->kvm->arch.n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES)) 9 __kvm_mmu_free_some_pages(vcpu); 10 } 11 12 static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) 13 { 14 if (likely(vcpu->arch.mmu.root_hpa != INVALID_PAGE)) 15 return 0; 16 17 return kvm_mmu_load(vcpu); 18 } 19 20 static inline int is_long_mode(struct kvm_vcpu *vcpu) 21 { 22 #ifdef CONFIG_X86_64 23 return vcpu->arch.shadow_efer & EFER_LME; 24 #else 25 return 0; 26 #endif 27 } 28 29 static inline int is_pae(struct kvm_vcpu *vcpu) 30 { 31 return vcpu->arch.cr4 & X86_CR4_PAE; 32 } 33 34 static inline int is_pse(struct kvm_vcpu *vcpu) 35 { 36 return vcpu->arch.cr4 & X86_CR4_PSE; 37 } 38 39 static inline int is_paging(struct kvm_vcpu *vcpu) 40 { 41 return vcpu->arch.cr0 & X86_CR0_PG; 42 } 43 44 #endif 45