arch/x86/kvm/mmu.h

   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