1 // SPDX-License-Identifier: GPL-2.0
2
3 #ifndef __KVM_X86_MMU_TDP_MMU_H
4 #define __KVM_X86_MMU_TDP_MMU_H
5
6 #include <linux/kvm_host.h>
7
8 void kvm_mmu_init_tdp_mmu(struct kvm *kvm);
9 void kvm_mmu_uninit_tdp_mmu(struct kvm *kvm);
10
11 bool is_tdp_mmu_root(struct kvm *kvm, hpa_t root);
12 hpa_t kvm_tdp_mmu_get_vcpu_root_hpa(struct kvm_vcpu *vcpu);
13 void kvm_tdp_mmu_free_root(struct kvm *kvm, struct kvm_mmu_page *root);
14
15 bool __kvm_tdp_mmu_zap_gfn_range(struct kvm *kvm, gfn_t start, gfn_t end,
16 bool can_yield);
kvm_tdp_mmu_zap_gfn_range(struct kvm * kvm,gfn_t start,gfn_t end)17 static inline bool kvm_tdp_mmu_zap_gfn_range(struct kvm *kvm, gfn_t start,
18 gfn_t end)
19 {
20 return __kvm_tdp_mmu_zap_gfn_range(kvm, start, end, true);
21 }
kvm_tdp_mmu_zap_sp(struct kvm * kvm,struct kvm_mmu_page * sp)22 static inline bool kvm_tdp_mmu_zap_sp(struct kvm *kvm, struct kvm_mmu_page *sp)
23 {
24 gfn_t end = sp->gfn + KVM_PAGES_PER_HPAGE(sp->role.level);
25
26 /*
27 * Don't allow yielding, as the caller may have pending pages to zap
28 * on the shadow MMU.
29 */
30 return __kvm_tdp_mmu_zap_gfn_range(kvm, sp->gfn, end, false);
31 }
32 void kvm_tdp_mmu_zap_all(struct kvm *kvm);
33
34 int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, gpa_t gpa, u32 error_code,
35 int map_writable, int max_level, kvm_pfn_t pfn,
36 bool prefault);
37
38 int kvm_tdp_mmu_zap_hva_range(struct kvm *kvm, unsigned long start,
39 unsigned long end);
40
41 int kvm_tdp_mmu_age_hva_range(struct kvm *kvm, unsigned long start,
42 unsigned long end);
43 int kvm_tdp_mmu_test_age_hva(struct kvm *kvm, unsigned long hva);
44
45 int kvm_tdp_mmu_set_spte_hva(struct kvm *kvm, unsigned long address,
46 pte_t *host_ptep);
47
48 bool kvm_tdp_mmu_wrprot_slot(struct kvm *kvm, struct kvm_memory_slot *slot,
49 int min_level);
50 bool kvm_tdp_mmu_clear_dirty_slot(struct kvm *kvm,
51 struct kvm_memory_slot *slot);
52 void kvm_tdp_mmu_clear_dirty_pt_masked(struct kvm *kvm,
53 struct kvm_memory_slot *slot,
54 gfn_t gfn, unsigned long mask,
55 bool wrprot);
56 bool kvm_tdp_mmu_slot_set_dirty(struct kvm *kvm, struct kvm_memory_slot *slot);
57 void kvm_tdp_mmu_zap_collapsible_sptes(struct kvm *kvm,
58 const struct kvm_memory_slot *slot);
59
60 bool kvm_tdp_mmu_write_protect_gfn(struct kvm *kvm,
61 struct kvm_memory_slot *slot, gfn_t gfn);
62
63 int kvm_tdp_mmu_get_walk(struct kvm_vcpu *vcpu, u64 addr, u64 *sptes,
64 int *root_level);
65
66 #endif /* __KVM_X86_MMU_TDP_MMU_H */
67