kvm: x86/mmu: Support write protection for nesting in tdp MMU
[platform/kernel/linux-starfive.git] / arch / x86 / kvm / mmu / tdp_mmu.h
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 void kvm_tdp_mmu_zap_all(struct kvm *kvm);
17
18 int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, gpa_t gpa, u32 error_code,
19                     int map_writable, int max_level, kvm_pfn_t pfn,
20                     bool prefault);
21
22 int kvm_tdp_mmu_zap_hva_range(struct kvm *kvm, unsigned long start,
23                               unsigned long end);
24
25 int kvm_tdp_mmu_age_hva_range(struct kvm *kvm, unsigned long start,
26                               unsigned long end);
27 int kvm_tdp_mmu_test_age_hva(struct kvm *kvm, unsigned long hva);
28
29 int kvm_tdp_mmu_set_spte_hva(struct kvm *kvm, unsigned long address,
30                              pte_t *host_ptep);
31
32 bool kvm_tdp_mmu_wrprot_slot(struct kvm *kvm, struct kvm_memory_slot *slot,
33                              int min_level);
34 bool kvm_tdp_mmu_clear_dirty_slot(struct kvm *kvm,
35                                   struct kvm_memory_slot *slot);
36 void kvm_tdp_mmu_clear_dirty_pt_masked(struct kvm *kvm,
37                                        struct kvm_memory_slot *slot,
38                                        gfn_t gfn, unsigned long mask,
39                                        bool wrprot);
40 bool kvm_tdp_mmu_slot_set_dirty(struct kvm *kvm, struct kvm_memory_slot *slot);
41 void kvm_tdp_mmu_zap_collapsible_sptes(struct kvm *kvm,
42                                        const struct kvm_memory_slot *slot);
43
44 bool kvm_tdp_mmu_write_protect_gfn(struct kvm *kvm,
45                                    struct kvm_memory_slot *slot, gfn_t gfn);
46 #endif /* __KVM_X86_MMU_TDP_MMU_H */