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fc01f7e7 FB |
1 | /* |
2 | * QEMU System Emulator header | |
3 | * | |
4 | * Copyright (c) 2003 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #ifndef VL_H | |
25 | #define VL_H | |
26 | ||
33e3963e FB |
27 | /* vl.c */ |
28 | void *get_mmap_addr(unsigned long size); | |
29 | ||
fc01f7e7 FB |
30 | /* block.c */ |
31 | typedef struct BlockDriverState BlockDriverState; | |
32 | ||
33e3963e | 33 | BlockDriverState *bdrv_open(const char *filename, int snapshot); |
fc01f7e7 FB |
34 | void bdrv_close(BlockDriverState *bs); |
35 | int bdrv_read(BlockDriverState *bs, int64_t sector_num, | |
36 | uint8_t *buf, int nb_sectors); | |
37 | int bdrv_write(BlockDriverState *bs, int64_t sector_num, | |
38 | const uint8_t *buf, int nb_sectors); | |
39 | void bdrv_get_geometry(BlockDriverState *bs, int64_t *nb_sectors_ptr); | |
33e3963e FB |
40 | int bdrv_commit(BlockDriverState *bs); |
41 | ||
42 | /* user mode linux compatible COW file */ | |
43 | #define COW_MAGIC 0x4f4f4f4d /* MOOO */ | |
44 | #define COW_VERSION 2 | |
fc01f7e7 | 45 | |
33e3963e FB |
46 | struct cow_header_v2 { |
47 | uint32_t magic; | |
48 | uint32_t long version; | |
49 | char backing_file[1024]; | |
50 | int32_t mtime; | |
51 | uint64_t size; | |
52 | uint32_t sectorsize; | |
53 | }; | |
fc01f7e7 FB |
54 | |
55 | #endif /* VL_H */ |