Archipelago » qemu

/*

 * QEMU System Emulator header

 * 

 * Copyright (c) 2003 Fabrice Bellard

 * 

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#ifndef VL_H

#define VL_H

/* vl.c */

void *get_mmap_addr(unsigned long size);

/* block.c */

typedef struct BlockDriverState BlockDriverState;

BlockDriverState *bdrv_open(const char *filename, int snapshot);

void bdrv_close(BlockDriverState *bs);

int bdrv_read(BlockDriverState *bs, int64_t sector_num, 

              uint8_t *buf, int nb_sectors);

int bdrv_write(BlockDriverState *bs, int64_t sector_num, 

               const uint8_t *buf, int nb_sectors);

void bdrv_get_geometry(BlockDriverState *bs, int64_t *nb_sectors_ptr);

int bdrv_commit(BlockDriverState *bs);

/* user mode linux compatible COW file */

#define COW_MAGIC 0x4f4f4f4d  /* MOOO */

#define COW_VERSION 2

struct cow_header_v2 {

    uint32_t magic;

    uint32_t  long version;

    char backing_file[1024];

    int32_t mtime;

    uint64_t size;

    uint32_t sectorsize;

};

#endif /* VL_H */