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
19struct pa_block {
20 uint8_t *addr;
21 uint64_t paddr;
22 uint64_t size;
23};
24
25struct pa_space {
26 size_t block_nr;
27 struct pa_block *block;
28};
29
30struct va_space {
31 uint64_t dtb;
32 struct pa_space *ps;
33};
34
35int pa_space_create(struct pa_space *ps, QEMU_Elf *qemu_elf);
36void pa_space_destroy(struct pa_space *ps);
37
38void va_space_create(struct va_space *vs, struct pa_space *ps, uint64_t dtb);
39void va_space_set_dtb(struct va_space *vs, uint64_t dtb);
40void *va_space_resolve(struct va_space *vs, uint64_t va);
41int 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