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#include "qemu-common.h"
#include "block_int.h"
#include "module.h"
typedef struct RAWState {
BlockDriverState *hd;
} RAWState;
static int raw_open(BlockDriverState *bs, const char *filename, int flags)
{
RAWState *s = bs->opaque;
int ret;
ret = bdrv_file_open(&s->hd, filename, flags);
if (!ret) {
bs->sg = s->hd->sg;
}
return ret;
}
static int raw_read(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors)
{
RAWState *s = bs->opaque;
return bdrv_read(s->hd, sector_num, buf, nb_sectors);
}
static int raw_write(BlockDriverState *bs, int64_t sector_num,
const uint8_t *buf, int nb_sectors)
{
RAWState *s = bs->opaque;
return bdrv_write(s->hd, sector_num, buf, nb_sectors);
}
static BlockDriverAIOCB *raw_aio_readv(BlockDriverState *bs,
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
BlockDriverCompletionFunc *cb, void *opaque)
{
RAWState *s = bs->opaque;
return bdrv_aio_readv(s->hd, sector_num, qiov, nb_sectors, cb, opaque);
}
static BlockDriverAIOCB *raw_aio_writev(BlockDriverState *bs,
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
BlockDriverCompletionFunc *cb, void *opaque)
{
RAWState *s = bs->opaque;
return bdrv_aio_writev(s->hd, sector_num, qiov, nb_sectors, cb, opaque);
}
static void raw_close(BlockDriverState *bs)
{
RAWState *s = bs->opaque;
bdrv_delete(s->hd);
}
static void raw_flush(BlockDriverState *bs)
{
RAWState *s = bs->opaque;
bdrv_flush(s->hd);
}
static BlockDriverAIOCB *raw_aio_flush(BlockDriverState *bs,
BlockDriverCompletionFunc *cb, void *opaque)
{
RAWState *s = bs->opaque;
return bdrv_aio_flush(s->hd, cb, opaque);
}
static int64_t raw_getlength(BlockDriverState *bs)
{
RAWState *s = bs->opaque;
return bdrv_getlength(s->hd);
}
static int raw_truncate(BlockDriverState *bs, int64_t offset)
{
RAWState *s = bs->opaque;
return bdrv_truncate(s->hd, offset);
}
static int raw_probe(const uint8_t *buf, int buf_size, const char *filename)
{
return 1; /* everything can be opened as raw image */
}
static int raw_is_inserted(BlockDriverState *bs)
{
RAWState *s = bs->opaque;
return bdrv_is_inserted(s->hd);
}
static int raw_eject(BlockDriverState *bs, int eject_flag)
{
RAWState *s = bs->opaque;
return bdrv_eject(s->hd, eject_flag);
}
static int raw_set_locked(BlockDriverState *bs, int locked)
{
RAWState *s = bs->opaque;
bdrv_set_locked(s->hd, locked);
return 0;
}
static int raw_ioctl(BlockDriverState *bs, unsigned long int req, void *buf)
{
RAWState *s = bs->opaque;
return bdrv_ioctl(s->hd, req, buf);
}
static BlockDriverAIOCB *raw_aio_ioctl(BlockDriverState *bs,
unsigned long int req, void *buf,
BlockDriverCompletionFunc *cb, void *opaque)
{
RAWState *s = bs->opaque;
return bdrv_aio_ioctl(s->hd, req, buf, cb, opaque);
}
static int raw_create(const char *filename, QEMUOptionParameter *options)
{
return bdrv_create_file(filename, options);
}
static QEMUOptionParameter raw_create_options[] = {
{
.name = BLOCK_OPT_SIZE,
.type = OPT_SIZE,
.help = "Virtual disk size"
},
{ NULL }
};
static BlockDriver bdrv_raw = {
.format_name = "raw",
.instance_size = sizeof(RAWState),
.bdrv_open = raw_open,
.bdrv_close = raw_close,
.bdrv_read = raw_read,
.bdrv_write = raw_write,
.bdrv_flush = raw_flush,
.bdrv_probe = raw_probe,
.bdrv_getlength = raw_getlength,
.bdrv_truncate = raw_truncate,
.bdrv_aio_readv = raw_aio_readv,
.bdrv_aio_writev = raw_aio_writev,
.bdrv_aio_flush = raw_aio_flush,
.bdrv_is_inserted = raw_is_inserted,
.bdrv_eject = raw_eject,
.bdrv_set_locked = raw_set_locked,
.bdrv_ioctl = raw_ioctl,
.bdrv_aio_ioctl = raw_aio_ioctl,
.bdrv_create = raw_create,
.create_options = raw_create_options,
};
static void bdrv_raw_init(void)
{
bdrv_register(&bdrv_raw);
}
block_init(bdrv_raw_init);
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