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  • Committer: Al Stone
  • Date: 2012-02-09 01:17:20 UTC
  • Revision ID: albert.stone@canonical.com-20120209011720-tztl7ik3qayz80p4
first commit to bzr for qemu

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#include "qemu-common.h"
 
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#include "block_int.h"
 
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#include "module.h"
 
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static int raw_open(BlockDriverState *bs, int flags)
 
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{
 
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    bs->sg = bs->file->sg;
 
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    return 0;
 
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}
 
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static int coroutine_fn raw_co_readv(BlockDriverState *bs, int64_t sector_num,
 
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                                     int nb_sectors, QEMUIOVector *qiov)
 
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{
 
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    return bdrv_co_readv(bs->file, sector_num, nb_sectors, qiov);
 
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}
 
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static int coroutine_fn raw_co_writev(BlockDriverState *bs, int64_t sector_num,
 
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                                      int nb_sectors, QEMUIOVector *qiov)
 
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{
 
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    return bdrv_co_writev(bs->file, sector_num, nb_sectors, qiov);
 
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}
 
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static void raw_close(BlockDriverState *bs)
 
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{
 
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}
 
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static int coroutine_fn raw_co_flush(BlockDriverState *bs)
 
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{
 
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    return bdrv_co_flush(bs->file);
 
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}
 
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static int64_t raw_getlength(BlockDriverState *bs)
 
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{
 
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    return bdrv_getlength(bs->file);
 
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}
 
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static int raw_truncate(BlockDriverState *bs, int64_t offset)
 
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{
 
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    return bdrv_truncate(bs->file, offset);
 
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}
 
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static int raw_probe(const uint8_t *buf, int buf_size, const char *filename)
 
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{
 
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   return 1; /* everything can be opened as raw image */
 
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}
 
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static int coroutine_fn raw_co_discard(BlockDriverState *bs,
 
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                                       int64_t sector_num, int nb_sectors)
 
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{
 
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    return bdrv_co_discard(bs->file, sector_num, nb_sectors);
 
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}
 
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static int raw_is_inserted(BlockDriverState *bs)
 
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{
 
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    return bdrv_is_inserted(bs->file);
 
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}
 
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static int raw_media_changed(BlockDriverState *bs)
 
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{
 
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    return bdrv_media_changed(bs->file);
 
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}
 
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static void raw_eject(BlockDriverState *bs, int eject_flag)
 
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{
 
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    bdrv_eject(bs->file, eject_flag);
 
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}
 
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static void raw_lock_medium(BlockDriverState *bs, bool locked)
 
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{
 
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    bdrv_lock_medium(bs->file, locked);
 
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}
 
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static int raw_ioctl(BlockDriverState *bs, unsigned long int req, void *buf)
 
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{
 
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   return bdrv_ioctl(bs->file, req, buf);
 
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}
 
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static BlockDriverAIOCB *raw_aio_ioctl(BlockDriverState *bs,
 
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        unsigned long int req, void *buf,
 
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        BlockDriverCompletionFunc *cb, void *opaque)
 
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{
 
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   return bdrv_aio_ioctl(bs->file, req, buf, cb, opaque);
 
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}
 
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static int raw_create(const char *filename, QEMUOptionParameter *options)
 
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{
 
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    return bdrv_create_file(filename, options);
 
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}
 
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static QEMUOptionParameter raw_create_options[] = {
 
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    {
 
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        .name = BLOCK_OPT_SIZE,
 
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        .type = OPT_SIZE,
 
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        .help = "Virtual disk size"
 
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    },
 
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    { NULL }
 
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};
 
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static int raw_has_zero_init(BlockDriverState *bs)
 
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{
 
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    return bdrv_has_zero_init(bs->file);
 
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}
 
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static BlockDriver bdrv_raw = {
 
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    .format_name        = "raw",
 
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    /* It's really 0, but we need to make g_malloc() happy */
 
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    .instance_size      = 1,
 
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    .bdrv_open          = raw_open,
 
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    .bdrv_close         = raw_close,
 
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    .bdrv_co_readv          = raw_co_readv,
 
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    .bdrv_co_writev         = raw_co_writev,
 
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    .bdrv_co_flush_to_disk  = raw_co_flush,
 
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    .bdrv_co_discard        = raw_co_discard,
 
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    .bdrv_probe         = raw_probe,
 
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    .bdrv_getlength     = raw_getlength,
 
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    .bdrv_truncate      = raw_truncate,
 
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    .bdrv_is_inserted   = raw_is_inserted,
 
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    .bdrv_media_changed = raw_media_changed,
 
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    .bdrv_eject         = raw_eject,
 
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    .bdrv_lock_medium   = raw_lock_medium,
 
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    .bdrv_ioctl         = raw_ioctl,
 
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    .bdrv_aio_ioctl     = raw_aio_ioctl,
 
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    .bdrv_create        = raw_create,
 
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    .create_options     = raw_create_options,
 
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    .bdrv_has_zero_init = raw_has_zero_init,
 
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};
 
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static void bdrv_raw_init(void)
 
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{
 
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    bdrv_register(&bdrv_raw);
 
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}
 
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block_init(bdrv_raw_init);