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-rw-r--r--block/raw.c171
1 files changed, 171 insertions, 0 deletions
diff --git a/block/raw.c b/block/raw.c
new file mode 100644
index 0000000000..953e2858af
--- /dev/null
+++ b/block/raw.c
@@ -0,0 +1,171 @@
+
+#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);