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
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