1 /* SPDX-License-Identifier: GPL-2.0-only */
2 #ifndef __KVM_HYP_MM_H
3 #define __KVM_HYP_MM_H
4
5 #include <asm/kvm_pgtable.h>
6 #include <asm/spectre.h>
7 #include <linux/memblock.h>
8 #include <linux/types.h>
9
10 #include <nvhe/memory.h>
11 #include <nvhe/spinlock.h>
12
13 extern struct kvm_pgtable pkvm_pgtable;
14 extern hyp_spinlock_t pkvm_pgd_lock;
15
16 int hyp_create_idmap(u32 hyp_va_bits);
17 int hyp_map_vectors(void);
18 int hyp_back_vmemmap(phys_addr_t phys, unsigned long size, phys_addr_t back);
19 int pkvm_cpu_set_vector(enum arm64_hyp_spectre_vector slot);
20 int pkvm_create_mappings(void *from, void *to, enum kvm_pgtable_prot prot);
21 int pkvm_create_mappings_locked(void *from, void *to, enum kvm_pgtable_prot prot);
22 int __pkvm_create_private_mapping(phys_addr_t phys, size_t size,
23 enum kvm_pgtable_prot prot,
24 unsigned long *haddr);
25 int pkvm_alloc_private_va_range(size_t size, unsigned long *haddr);
26
hyp_vmemmap_range(phys_addr_t phys,unsigned long size,unsigned long * start,unsigned long * end)27 static inline void hyp_vmemmap_range(phys_addr_t phys, unsigned long size,
28 unsigned long *start, unsigned long *end)
29 {
30 unsigned long nr_pages = size >> PAGE_SHIFT;
31 struct hyp_page *p = hyp_phys_to_page(phys);
32
33 *start = (unsigned long)p;
34 *end = *start + nr_pages * sizeof(struct hyp_page);
35 *start = ALIGN_DOWN(*start, PAGE_SIZE);
36 *end = ALIGN(*end, PAGE_SIZE);
37 }
38
39 #endif /* __KVM_HYP_MM_H */
40