xref: /openbmc/linux/arch/x86/kvm/mmu/tdp_mmu.h (revision 0d3b051a)
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 
47 int kvm_tdp_mmu_get_walk(struct kvm_vcpu *vcpu, u64 addr, u64 *sptes,
48 			 int *root_level);
49 
50 #endif /* __KVM_X86_MMU_TDP_MMU_H */
51