1 | /* |
2 | * Copyright (c) 2018 Virtuozzo International GmbH |
3 | * |
4 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
5 | * |
6 | */ |
7 | |
8 | #ifndef ADDRSPACE_H |
9 | #define ADDRSPACE_H |
10 | |
11 | #include "qemu_elf.h" |
12 | |
13 | #define PAGE_BITS 12 |
14 | #define PAGE_SIZE (1ULL << PAGE_BITS) |
15 | #define PFN_MASK (~(PAGE_SIZE - 1)) |
16 | |
17 | #define INVALID_PA UINT64_MAX |
18 | |
19 | struct pa_block { |
20 | uint8_t *addr; |
21 | uint64_t paddr; |
22 | uint64_t size; |
23 | }; |
24 | |
25 | struct pa_space { |
26 | size_t block_nr; |
27 | struct pa_block *block; |
28 | }; |
29 | |
30 | struct va_space { |
31 | uint64_t dtb; |
32 | struct pa_space *ps; |
33 | }; |
34 | |
35 | int pa_space_create(struct pa_space *ps, QEMU_Elf *qemu_elf); |
36 | void pa_space_destroy(struct pa_space *ps); |
37 | |
38 | void va_space_create(struct va_space *vs, struct pa_space *ps, uint64_t dtb); |
39 | void va_space_set_dtb(struct va_space *vs, uint64_t dtb); |
40 | void *va_space_resolve(struct va_space *vs, uint64_t va); |
41 | int va_space_rw(struct va_space *vs, uint64_t addr, |
42 | void *buf, size_t size, int is_write); |
43 | |
44 | #endif /* ADDRSPACE_H */ |
45 | |