Archipelago » qemu

#include "qemu-common.h"

#include "block_int.h"

#include "module.h"

static int raw_open(BlockDriverState *bs, int flags)

{

    bs->sg = bs->file->sg;

    return 0;

}

static int raw_read(BlockDriverState *bs, int64_t sector_num,

                    uint8_t *buf, int nb_sectors)

{

    return bdrv_read(bs->file, sector_num, buf, nb_sectors);

}

static int raw_write(BlockDriverState *bs, int64_t sector_num,

                     const uint8_t *buf, int nb_sectors)

{

    return bdrv_write(bs->file, 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)

{

    return bdrv_aio_readv(bs->file, 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)

{

    return bdrv_aio_writev(bs->file, sector_num, qiov, nb_sectors, cb, opaque);

}

static void raw_close(BlockDriverState *bs)

{

}

static void raw_flush(BlockDriverState *bs)

{

    bdrv_flush(bs->file);

}

static BlockDriverAIOCB *raw_aio_flush(BlockDriverState *bs,

    BlockDriverCompletionFunc *cb, void *opaque)

{

    return bdrv_aio_flush(bs->file, cb, opaque);

}

static int64_t raw_getlength(BlockDriverState *bs)

{

    return bdrv_getlength(bs->file);

}

static int raw_truncate(BlockDriverState *bs, int64_t offset)

{

    return bdrv_truncate(bs->file, 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)

{

    return bdrv_is_inserted(bs->file);

}

static int raw_eject(BlockDriverState *bs, int eject_flag)

{

    return bdrv_eject(bs->file, eject_flag);

}

static int raw_set_locked(BlockDriverState *bs, int locked)

{

    bdrv_set_locked(bs->file, locked);

    return 0;

}

static int raw_ioctl(BlockDriverState *bs, unsigned long int req, void *buf)

{

   return bdrv_ioctl(bs->file, req, buf);

}

static BlockDriverAIOCB *raw_aio_ioctl(BlockDriverState *bs,

        unsigned long int req, void *buf,

        BlockDriverCompletionFunc *cb, void *opaque)

{

   return bdrv_aio_ioctl(bs->file, 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 int raw_has_zero_init(BlockDriverState *bs)

{

    return bdrv_has_zero_init(bs->file);

}

static BlockDriver bdrv_raw = {

    .format_name        = "raw",

    /* It's really 0, but we need to make qemu_malloc() happy */

    .instance_size      = 1,

    .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,

    .bdrv_has_zero_init = raw_has_zero_init,

};

static void bdrv_raw_init(void)

{

    bdrv_register(&bdrv_raw);

}

block_init(bdrv_raw_init);