ia64/xen-unstable

view tools/ioemu/block_int.h @ 8740:3d7ea7972b39

Update patches for linux 2.6.15.

Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
author cl349@firebug.cl.cam.ac.uk
date Thu Feb 02 17:16:00 2006 +0000 (2006-02-02)
parents 8e5fc5fe636c
children f7b43e5c42b9
line source
1 /*
2 * QEMU System Emulator block driver
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 BLOCK_INT_H
25 #define BLOCK_INT_H
27 struct BlockDriver {
28 const char *format_name;
29 int instance_size;
30 int (*bdrv_probe)(const uint8_t *buf, int buf_size, const char *filename);
31 int (*bdrv_open)(BlockDriverState *bs, const char *filename);
32 int (*bdrv_read)(BlockDriverState *bs, int64_t sector_num,
33 uint8_t *buf, int nb_sectors);
34 int (*bdrv_write)(BlockDriverState *bs, int64_t sector_num,
35 const uint8_t *buf, int nb_sectors);
36 void (*bdrv_close)(BlockDriverState *bs);
37 int (*bdrv_create)(const char *filename, int64_t total_sectors,
38 const char *backing_file, int flags);
39 int (*bdrv_is_allocated)(BlockDriverState *bs, int64_t sector_num,
40 int nb_sectors, int *pnum);
41 int (*bdrv_set_key)(BlockDriverState *bs, const char *key);
42 struct BlockDriver *next;
43 };
45 struct BlockDriverState {
46 int64_t total_sectors;
47 int read_only; /* if true, the media is read only */
48 int inserted; /* if true, the media is present */
49 int removable; /* if true, the media can be removed */
50 int locked; /* if true, the media cannot temporarily be ejected */
51 int encrypted; /* if true, the media is encrypted */
52 /* event callback when inserting/removing */
53 void (*change_cb)(void *opaque);
54 void *change_opaque;
56 BlockDriver *drv;
57 void *opaque;
59 int boot_sector_enabled;
60 uint8_t boot_sector_data[512];
62 char filename[1024];
63 char backing_file[1024]; /* if non zero, the image is a diff of
64 this file image */
65 int is_temporary;
67 BlockDriverState *backing_hd;
69 /* NOTE: the following infos are only hints for real hardware
70 drivers. They are not used by the block driver */
71 int cyls, heads, secs;
72 int type;
73 char device_name[32];
74 BlockDriverState *next;
75 };
77 #endif /* BLOCK_INT_H */