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-rw-r--r--Makefile.objs2
-rw-r--r--block.c74
-rw-r--r--block.h1
-rw-r--r--block/raw-posix.c15
-rw-r--r--block/raw-win32.c12
-rw-r--r--block/raw.c171
6 files changed, 235 insertions, 40 deletions
diff --git a/Makefile.objs b/Makefile.objs
index 1c7c64b1d8..4f65bfbae5 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -12,7 +12,7 @@ block-obj-y += nbd.o block.o aio.o aes.o osdep.o qemu-config.o
block-obj-$(CONFIG_POSIX) += posix-aio-compat.o
block-obj-$(CONFIG_LINUX_AIO) += linux-aio.o
-block-nested-y += cow.o qcow.o vdi.o vmdk.o cloop.o dmg.o bochs.o vpc.o vvfat.o
+block-nested-y += raw.o cow.o qcow.o vdi.o vmdk.o cloop.o dmg.o bochs.o vpc.o vvfat.o
block-nested-y += qcow2.o qcow2-refcount.o qcow2-cluster.o qcow2-snapshot.o
block-nested-y += parallels.o nbd.o blkdebug.o
block-nested-$(CONFIG_WIN32) += raw-win32.o
diff --git a/block.c b/block.c
index 7974215ea4..ad681db564 100644
--- a/block.c
+++ b/block.c
@@ -54,6 +54,7 @@ static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors);
static int bdrv_write_em(BlockDriverState *bs, int64_t sector_num,
const uint8_t *buf, int nb_sectors);
+static BlockDriver *find_protocol(const char *filename);
static QTAILQ_HEAD(, BlockDriverState) bdrv_states =
QTAILQ_HEAD_INITIALIZER(bdrv_states);
@@ -203,6 +204,18 @@ int bdrv_create(BlockDriver *drv, const char* filename,
return drv->bdrv_create(filename, options);
}
+int bdrv_create_file(const char* filename, QEMUOptionParameter *options)
+{
+ BlockDriver *drv;
+
+ drv = find_protocol(filename);
+ if (drv == NULL) {
+ drv = bdrv_find_format("file");
+ }
+
+ return bdrv_create(drv, filename, options);
+}
+
#ifdef _WIN32
void get_tmp_filename(char *filename, int size)
{
@@ -246,6 +259,28 @@ int is_windows_drive(const char *filename)
}
#endif
+/*
+ * Detect host devices. By convention, /dev/cdrom[N] is always
+ * recognized as a host CDROM.
+ */
+static BlockDriver *find_hdev_driver(const char *filename)
+{
+ int score_max = 0, score;
+ BlockDriver *drv = NULL, *d;
+
+ QLIST_FOREACH(d, &bdrv_drivers, list) {
+ if (d->bdrv_probe_device) {
+ score = d->bdrv_probe_device(filename);
+ if (score > score_max) {
+ score_max = score;
+ drv = d;
+ }
+ }
+ }
+
+ return drv;
+}
+
static BlockDriver *find_protocol(const char *filename)
{
BlockDriver *drv1;
@@ -256,11 +291,16 @@ static BlockDriver *find_protocol(const char *filename)
#ifdef _WIN32
if (is_windows_drive(filename) ||
is_windows_drive_prefix(filename))
- return bdrv_find_format("raw");
+ return bdrv_find_format("file");
#endif
p = strchr(filename, ':');
- if (!p)
- return bdrv_find_format("raw");
+ if (!p) {
+ drv1 = find_hdev_driver(filename);
+ if (!drv1) {
+ drv1 = bdrv_find_format("file");
+ }
+ return drv1;
+ }
len = p - filename;
if (len > sizeof(protocol) - 1)
len = sizeof(protocol) - 1;
@@ -275,28 +315,6 @@ static BlockDriver *find_protocol(const char *filename)
return NULL;
}
-/*
- * Detect host devices. By convention, /dev/cdrom[N] is always
- * recognized as a host CDROM.
- */
-static BlockDriver *find_hdev_driver(const char *filename)
-{
- int score_max = 0, score;
- BlockDriver *drv = NULL, *d;
-
- QLIST_FOREACH(d, &bdrv_drivers, list) {
- if (d->bdrv_probe_device) {
- score = d->bdrv_probe_device(filename);
- if (score > score_max) {
- score_max = score;
- drv = d;
- }
- }
- }
-
- return drv;
-}
-
static BlockDriver *find_image_format(const char *filename)
{
int ret, score, score_max;
@@ -319,6 +337,7 @@ static BlockDriver *find_image_format(const char *filename)
}
score_max = 0;
+ drv = NULL;
QLIST_FOREACH(drv1, &bdrv_drivers, list) {
if (drv1->bdrv_probe) {
score = drv1->bdrv_probe(buf, ret, filename);
@@ -423,10 +442,7 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int flags,
pstrcpy(bs->filename, sizeof(bs->filename), filename);
if (!drv) {
- drv = find_hdev_driver(filename);
- if (!drv) {
- drv = find_image_format(filename);
- }
+ drv = find_image_format(filename);
}
if (!drv) {
diff --git a/block.h b/block.h
index 05ad572d8d..f58edf17c3 100644
--- a/block.h
+++ b/block.h
@@ -57,6 +57,7 @@ BlockDriver *bdrv_find_format(const char *format_name);
BlockDriver *bdrv_find_whitelisted_format(const char *format_name);
int bdrv_create(BlockDriver *drv, const char* filename,
QEMUOptionParameter *options);
+int bdrv_create_file(const char* filename, QEMUOptionParameter *options);
BlockDriverState *bdrv_new(const char *device_name);
void bdrv_delete(BlockDriverState *bs);
int bdrv_file_open(BlockDriverState **pbs, const char *filename, int flags);
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 4cda9c1f85..8f57ab06ae 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -768,8 +768,9 @@ static QEMUOptionParameter raw_create_options[] = {
{ NULL }
};
-static BlockDriver bdrv_raw = {
- .format_name = "raw",
+static BlockDriver bdrv_file = {
+ .format_name = "file",
+ .protocol_name = "file",
.instance_size = sizeof(BDRVRawState),
.bdrv_probe = NULL, /* no probe for protocols */
.bdrv_open = raw_open,
@@ -1026,6 +1027,7 @@ static int hdev_create(const char *filename, QEMUOptionParameter *options)
static BlockDriver bdrv_host_device = {
.format_name = "host_device",
+ .protocol_name = "host_device",
.instance_size = sizeof(BDRVRawState),
.bdrv_probe_device = hdev_probe_device,
.bdrv_open = hdev_open,
@@ -1140,6 +1142,7 @@ static int floppy_eject(BlockDriverState *bs, int eject_flag)
static BlockDriver bdrv_host_floppy = {
.format_name = "host_floppy",
+ .protocol_name = "host_floppy",
.instance_size = sizeof(BDRVRawState),
.bdrv_probe_device = floppy_probe_device,
.bdrv_open = floppy_open,
@@ -1239,6 +1242,7 @@ static int cdrom_set_locked(BlockDriverState *bs, int locked)
static BlockDriver bdrv_host_cdrom = {
.format_name = "host_cdrom",
+ .protocol_name = "host_cdrom",
.instance_size = sizeof(BDRVRawState),
.bdrv_probe_device = cdrom_probe_device,
.bdrv_open = cdrom_open,
@@ -1361,6 +1365,7 @@ static int cdrom_set_locked(BlockDriverState *bs, int locked)
static BlockDriver bdrv_host_cdrom = {
.format_name = "host_cdrom",
+ .protocol_name = "host_cdrom",
.instance_size = sizeof(BDRVRawState),
.bdrv_probe_device = cdrom_probe_device,
.bdrv_open = cdrom_open,
@@ -1385,13 +1390,13 @@ static BlockDriver bdrv_host_cdrom = {
};
#endif /* __FreeBSD__ */
-static void bdrv_raw_init(void)
+static void bdrv_file_init(void)
{
/*
* Register all the drivers. Note that order is important, the driver
* registered last will get probed first.
*/
- bdrv_register(&bdrv_raw);
+ bdrv_register(&bdrv_file);
bdrv_register(&bdrv_host_device);
#ifdef __linux__
bdrv_register(&bdrv_host_floppy);
@@ -1402,4 +1407,4 @@ static void bdrv_raw_init(void)
#endif
}
-block_init(bdrv_raw_init);
+block_init(bdrv_file_init);
diff --git a/block/raw-win32.c b/block/raw-win32.c
index 526764f62f..eadebeb613 100644
--- a/block/raw-win32.c
+++ b/block/raw-win32.c
@@ -238,8 +238,9 @@ static QEMUOptionParameter raw_create_options[] = {
{ NULL }
};
-static BlockDriver bdrv_raw = {
- .format_name = "raw",
+static BlockDriver bdrv_file = {
+ .format_name = "file",
+ .protocol_name = "file",
.instance_size = sizeof(BDRVRawState),
.bdrv_open = raw_open,
.bdrv_close = raw_close,
@@ -395,6 +396,7 @@ static int raw_set_locked(BlockDriverState *bs, int locked)
static BlockDriver bdrv_host_device = {
.format_name = "host_device",
+ .protocol_name = "host_device",
.instance_size = sizeof(BDRVRawState),
.bdrv_probe_device = hdev_probe_device,
.bdrv_open = hdev_open,
@@ -406,10 +408,10 @@ static BlockDriver bdrv_host_device = {
.bdrv_getlength = raw_getlength,
};
-static void bdrv_raw_init(void)
+static void bdrv_file_init(void)
{
- bdrv_register(&bdrv_raw);
+ bdrv_register(&bdrv_file);
bdrv_register(&bdrv_host_device);
}
-block_init(bdrv_raw_init);
+block_init(bdrv_file_init);
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);