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1d737c8a ZX |
1 | #ifndef __KVM_X86_MMU_H |
2 | #define __KVM_X86_MMU_H | |
3 | ||
edf88417 | 4 | #include <linux/kvm_host.h> |
fc78f519 | 5 | #include "kvm_cache_regs.h" |
1d737c8a | 6 | |
8c6d6adc SY |
7 | #define PT64_PT_BITS 9 |
8 | #define PT64_ENT_PER_PAGE (1 << PT64_PT_BITS) | |
9 | #define PT32_PT_BITS 10 | |
10 | #define PT32_ENT_PER_PAGE (1 << PT32_PT_BITS) | |
11 | ||
12 | #define PT_WRITABLE_SHIFT 1 | |
13 | ||
14 | #define PT_PRESENT_MASK (1ULL << 0) | |
15 | #define PT_WRITABLE_MASK (1ULL << PT_WRITABLE_SHIFT) | |
16 | #define PT_USER_MASK (1ULL << 2) | |
17 | #define PT_PWT_MASK (1ULL << 3) | |
18 | #define PT_PCD_MASK (1ULL << 4) | |
1b7fcd32 AK |
19 | #define PT_ACCESSED_SHIFT 5 |
20 | #define PT_ACCESSED_MASK (1ULL << PT_ACCESSED_SHIFT) | |
8c6d6adc SY |
21 | #define PT_DIRTY_MASK (1ULL << 6) |
22 | #define PT_PAGE_SIZE_MASK (1ULL << 7) | |
23 | #define PT_PAT_MASK (1ULL << 7) | |
24 | #define PT_GLOBAL_MASK (1ULL << 8) | |
25 | #define PT64_NX_SHIFT 63 | |
26 | #define PT64_NX_MASK (1ULL << PT64_NX_SHIFT) | |
27 | ||
28 | #define PT_PAT_SHIFT 7 | |
29 | #define PT_DIR_PAT_SHIFT 12 | |
30 | #define PT_DIR_PAT_MASK (1ULL << PT_DIR_PAT_SHIFT) | |
31 | ||
32 | #define PT32_DIR_PSE36_SIZE 4 | |
33 | #define PT32_DIR_PSE36_SHIFT 13 | |
34 | #define PT32_DIR_PSE36_MASK \ | |
35 | (((1ULL << PT32_DIR_PSE36_SIZE) - 1) << PT32_DIR_PSE36_SHIFT) | |
36 | ||
37 | #define PT64_ROOT_LEVEL 4 | |
38 | #define PT32_ROOT_LEVEL 2 | |
39 | #define PT32E_ROOT_LEVEL 3 | |
40 | ||
c9c54174 SY |
41 | #define PT_PDPE_LEVEL 3 |
42 | #define PT_DIRECTORY_LEVEL 2 | |
43 | #define PT_PAGE_TABLE_LEVEL 1 | |
44 | ||
94d8b056 MT |
45 | int kvm_mmu_get_spte_hierarchy(struct kvm_vcpu *vcpu, u64 addr, u64 sptes[4]); |
46 | ||
1d737c8a ZX |
47 | static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) |
48 | { | |
f05e70ac | 49 | if (unlikely(vcpu->kvm->arch.n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES)) |
1d737c8a ZX |
50 | __kvm_mmu_free_some_pages(vcpu); |
51 | } | |
52 | ||
53 | static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) | |
54 | { | |
55 | if (likely(vcpu->arch.mmu.root_hpa != INVALID_PAGE)) | |
56 | return 0; | |
57 | ||
58 | return kvm_mmu_load(vcpu); | |
59 | } | |
60 | ||
43a3795a | 61 | static inline int is_present_gpte(unsigned long pte) |
20c466b5 DE |
62 | { |
63 | return pte & PT_PRESENT_MASK; | |
64 | } | |
65 | ||
1d737c8a | 66 | #endif |