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/* BlockDriver implementation for "raw"
*
* Copyright (C) 2010, 2013, Red Hat, Inc.
* Copyright (C) 2010, Blue Swirl <blauwirbel@gmail.com>
*
* Author:
* Laszlo Ersek <lersek@redhat.com>
*
* 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.
*/
#include "block/block_int.h"
#include "qemu/option.h"
static const QEMUOptionParameter raw_create_options[] = {
{
.name = BLOCK_OPT_SIZE,
.type = OPT_SIZE,
.help = "Virtual disk size"
},
{ 0 }
};
static TYPE raw_reopen_prepare(BlockDriverState *bs)
{
return bdrv_reopen_prepare(bs->file);
}
static TYPE raw_co_readv(BlockDriverState *bs)
{
BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO);
return bdrv_co_readv(bs->file);
}
static TYPE raw_co_writev(BlockDriverState *bs)
{
BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO);
return bdrv_co_writev(bs->file);
}
static TYPE raw_co_is_allocated(BlockDriverState *bs)
{
return bdrv_co_is_allocated(bs->file);
}
static TYPE raw_co_write_zeroes(BlockDriverState *bs)
{
return bdrv_co_write_zeroes(bs->file);
}
static TYPE raw_co_discard(BlockDriverState *bs)
{
return bdrv_co_discard(bs->file);
}
static TYPE raw_getlength(BlockDriverState *bs)
{
return bdrv_getlength(bs->file);
}
static TYPE raw_get_info(BlockDriverState *bs)
{
return bdrv_get_info(bs->file);
}
static TYPE raw_truncate(BlockDriverState *bs)
{
return bdrv_truncate(bs->file);
}
static TYPE raw_is_inserted(BlockDriverState *bs)
{
return bdrv_is_inserted(bs->file);
}
static TYPE raw_media_changed(BlockDriverState *bs)
{
return bdrv_media_changed(bs->file);
}
static TYPE raw_eject(BlockDriverState *bs)
{
return bdrv_eject(bs->file);
}
static TYPE raw_lock_medium(BlockDriverState *bs)
{
return bdrv_lock_medium(bs->file);
}
static TYPE raw_ioctl(BlockDriverState *bs)
{
return bdrv_ioctl(bs->file);
}
static TYPE raw_aio_ioctl(BlockDriverState *bs)
{
return bdrv_aio_ioctl(bs->file);
}
static TYPE raw_has_zero_init(BlockDriverState *bs)
{
return bdrv_has_zero_init(bs->file);
}
static TYPE raw_create(void)
{
return bdrv_create_file();
}
static const char *raw_format_name(void)
{
return "raw";
}
static int raw_open(BlockDriverState *bs)
{
bs->sg = bs->file->sg;
return 0;
}
static void raw_close(void)
{
}
static int raw_probe(void)
{
/* smallest possible positive score so that raw is used if and only if no
* other block driver works
*/
return 1;
}
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