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-rw-r--r--Makefile.objs2
-rw-r--r--QMP/qmp-events.txt53
-rw-r--r--block.c119
-rw-r--r--block.h4
-rw-r--r--block/blkdebug.c4
-rw-r--r--block/blkverify.c4
-rw-r--r--block/qcow.c104
-rw-r--r--block/rbd.c22
-rw-r--r--block/stream.c269
-rw-r--r--block/vdi.c8
-rw-r--r--block_int.h47
-rw-r--r--blockdev.c199
-rwxr-xr-xconfigure4
-rw-r--r--docs/live-block-ops.txt58
-rw-r--r--hmp-commands.hx41
-rw-r--r--hmp.c68
-rw-r--r--hmp.h4
-rw-r--r--hw/e1000.c5
-rw-r--r--hw/pcnet.c3
-rw-r--r--hw/qdev-properties.c4
-rw-r--r--hw/scsi-disk.c10
-rw-r--r--hw/virtio-blk.c2
-rw-r--r--monitor.c13
-rw-r--r--monitor.h2
-rw-r--r--qapi-schema.json115
-rw-r--r--qemu-coroutine-sleep.c38
-rw-r--r--qemu-coroutine.h9
-rw-r--r--qemu-io.c52
-rw-r--r--qemu-timer.c29
-rw-r--r--qerror.c8
-rw-r--r--qerror.h6
-rw-r--r--qmp-commands.hx24
-rw-r--r--trace-events13
33 files changed, 1221 insertions, 122 deletions
diff --git a/Makefile.objs b/Makefile.objs
index 9ca606356f..06a147b0b0 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -13,6 +13,7 @@ oslib-obj-$(CONFIG_POSIX) += oslib-posix.o qemu-thread-posix.o
#######################################################################
# coroutines
coroutine-obj-y = qemu-coroutine.o qemu-coroutine-lock.o qemu-coroutine-io.o
+coroutine-obj-y += qemu-coroutine-sleep.o
ifeq ($(CONFIG_UCONTEXT_COROUTINE),y)
coroutine-obj-$(CONFIG_POSIX) += coroutine-ucontext.o
else
@@ -34,6 +35,7 @@ block-nested-y += qcow2.o qcow2-refcount.o qcow2-cluster.o qcow2-snapshot.o qcow
block-nested-y += qed.o qed-gencb.o qed-l2-cache.o qed-table.o qed-cluster.o
block-nested-y += qed-check.o
block-nested-y += parallels.o nbd.o blkdebug.o sheepdog.o blkverify.o
+block-nested-y += stream.o
block-nested-$(CONFIG_WIN32) += raw-win32.o
block-nested-$(CONFIG_POSIX) += raw-posix.o
block-nested-$(CONFIG_LIBISCSI) += iscsi.o
diff --git a/QMP/qmp-events.txt b/QMP/qmp-events.txt
index af586ec855..06cb404837 100644
--- a/QMP/qmp-events.txt
+++ b/QMP/qmp-events.txt
@@ -264,3 +264,56 @@ Example:
Note: If action is "reset", "shutdown", or "pause" the WATCHDOG event is
followed respectively by the RESET, SHUTDOWN, or STOP events.
+
+
+BLOCK_JOB_COMPLETED
+-------------------
+
+Emitted when a block job has completed.
+
+Data:
+
+- "type": Job type ("stream" for image streaming, json-string)
+- "device": Device name (json-string)
+- "len": Maximum progress value (json-int)
+- "offset": Current progress value (json-int)
+ On success this is equal to len.
+ On failure this is less than len.
+- "speed": Rate limit, bytes per second (json-int)
+- "error": Error message (json-string, optional)
+ Only present on failure. This field contains a human-readable
+ error message. There are no semantics other than that streaming
+ has failed and clients should not try to interpret the error
+ string.
+
+Example:
+
+{ "event": "BLOCK_JOB_COMPLETED",
+ "data": { "type": "stream", "device": "virtio-disk0",
+ "len": 10737418240, "offset": 10737418240,
+ "speed": 0 },
+ "timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
+
+
+BLOCK_JOB_CANCELLED
+-------------------
+
+Emitted when a block job has been cancelled.
+
+Data:
+
+- "type": Job type ("stream" for image streaming, json-string)
+- "device": Device name (json-string)
+- "len": Maximum progress value (json-int)
+- "offset": Current progress value (json-int)
+ On success this is equal to len.
+ On failure this is less than len.
+- "speed": Rate limit, bytes per second (json-int)
+
+Example:
+
+{ "event": "BLOCK_JOB_CANCELLED",
+ "data": { "type": "stream", "device": "virtio-disk0",
+ "len": 10737418240, "offset": 134217728,
+ "speed": 0 },
+ "timestamp": { "seconds": 1267061043, "microseconds": 959568 } }
diff --git a/block.c b/block.c
index 3f072f6274..3621d11de0 100644
--- a/block.c
+++ b/block.c
@@ -48,6 +48,10 @@
#define NOT_DONE 0x7fffffff /* used while emulated sync operation in progress */
+typedef enum {
+ BDRV_REQ_COPY_ON_READ = 0x1,
+} BdrvRequestFlags;
+
static void bdrv_dev_change_media_cb(BlockDriverState *bs, bool load);
static BlockDriverAIOCB *bdrv_aio_readv_em(BlockDriverState *bs,
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
@@ -62,7 +66,8 @@ static int coroutine_fn bdrv_co_writev_em(BlockDriverState *bs,
int64_t sector_num, int nb_sectors,
QEMUIOVector *iov);
static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs,
- int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
+ int64_t sector_num, int nb_sectors, QEMUIOVector *qiov,
+ BdrvRequestFlags flags);
static int coroutine_fn bdrv_co_do_writev(BlockDriverState *bs,
int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
static BlockDriverAIOCB *bdrv_co_aio_rw_vector(BlockDriverState *bs,
@@ -1020,6 +1025,10 @@ int bdrv_commit(BlockDriverState *bs)
return -EACCES;
}
+ if (bdrv_in_use(bs) || bdrv_in_use(bs->backing_hd)) {
+ return -EBUSY;
+ }
+
backing_drv = bs->backing_hd->drv;
ro = bs->backing_hd->read_only;
strncpy(filename, bs->backing_hd->filename, sizeof(filename));
@@ -1288,7 +1297,7 @@ static void coroutine_fn bdrv_rw_co_entry(void *opaque)
if (!rwco->is_write) {
rwco->ret = bdrv_co_do_readv(rwco->bs, rwco->sector_num,
- rwco->nb_sectors, rwco->qiov);
+ rwco->nb_sectors, rwco->qiov, 0);
} else {
rwco->ret = bdrv_co_do_writev(rwco->bs, rwco->sector_num,
rwco->nb_sectors, rwco->qiov);
@@ -1496,7 +1505,7 @@ int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
return 0;
}
-static int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs,
+static int coroutine_fn bdrv_co_do_copy_on_readv(BlockDriverState *bs,
int64_t sector_num, int nb_sectors, QEMUIOVector *qiov)
{
/* Perform I/O through a temporary buffer so that users who scribble over
@@ -1519,8 +1528,8 @@ static int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs,
round_to_clusters(bs, sector_num, nb_sectors,
&cluster_sector_num, &cluster_nb_sectors);
- trace_bdrv_co_copy_on_readv(bs, sector_num, nb_sectors,
- cluster_sector_num, cluster_nb_sectors);
+ trace_bdrv_co_do_copy_on_readv(bs, sector_num, nb_sectors,
+ cluster_sector_num, cluster_nb_sectors);
iov.iov_len = cluster_nb_sectors * BDRV_SECTOR_SIZE;
iov.iov_base = bounce_buffer = qemu_blockalign(bs, iov.iov_len);
@@ -1555,7 +1564,8 @@ err:
* Handle a read request in coroutine context
*/
static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs,
- int64_t sector_num, int nb_sectors, QEMUIOVector *qiov)
+ int64_t sector_num, int nb_sectors, QEMUIOVector *qiov,
+ BdrvRequestFlags flags)
{
BlockDriver *drv = bs->drv;
BdrvTrackedRequest req;
@@ -1574,12 +1584,19 @@ static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs,
}
if (bs->copy_on_read) {
+ flags |= BDRV_REQ_COPY_ON_READ;
+ }
+ if (flags & BDRV_REQ_COPY_ON_READ) {
+ bs->copy_on_read_in_flight++;
+ }
+
+ if (bs->copy_on_read_in_flight) {
wait_for_overlapping_requests(bs, sector_num, nb_sectors);
}
tracked_request_begin(&req, bs, sector_num, nb_sectors, false);
- if (bs->copy_on_read) {
+ if (flags & BDRV_REQ_COPY_ON_READ) {
int pnum;
ret = bdrv_co_is_allocated(bs, sector_num, nb_sectors, &pnum);
@@ -1588,7 +1605,7 @@ static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs,
}
if (!ret || pnum != nb_sectors) {
- ret = bdrv_co_copy_on_readv(bs, sector_num, nb_sectors, qiov);
+ ret = bdrv_co_do_copy_on_readv(bs, sector_num, nb_sectors, qiov);
goto out;
}
}
@@ -1597,6 +1614,11 @@ static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs,
out:
tracked_request_end(&req);
+
+ if (flags & BDRV_REQ_COPY_ON_READ) {
+ bs->copy_on_read_in_flight--;
+ }
+
return ret;
}
@@ -1605,7 +1627,16 @@ int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
{
trace_bdrv_co_readv(bs, sector_num, nb_sectors);
- return bdrv_co_do_readv(bs, sector_num, nb_sectors, qiov);
+ return bdrv_co_do_readv(bs, sector_num, nb_sectors, qiov, 0);
+}
+
+int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs,
+ int64_t sector_num, int nb_sectors, QEMUIOVector *qiov)
+{
+ trace_bdrv_co_copy_on_readv(bs, sector_num, nb_sectors);
+
+ return bdrv_co_do_readv(bs, sector_num, nb_sectors, qiov,
+ BDRV_REQ_COPY_ON_READ);
}
/*
@@ -1633,7 +1664,7 @@ static int coroutine_fn bdrv_co_do_writev(BlockDriverState *bs,
bdrv_io_limits_intercept(bs, true, nb_sectors);
}
- if (bs->copy_on_read) {
+ if (bs->copy_on_read_in_flight) {
wait_for_overlapping_requests(bs, sector_num, nb_sectors);
}
@@ -2564,6 +2595,24 @@ int bdrv_snapshot_load_tmp(BlockDriverState *bs,
return -ENOTSUP;
}
+BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs,
+ const char *backing_file)
+{
+ if (!bs->drv) {
+ return NULL;
+ }
+
+ if (bs->backing_hd) {
+ if (strcmp(bs->backing_file, backing_file) == 0) {
+ return bs->backing_hd;
+ } else {
+ return bdrv_find_backing_image(bs->backing_hd, backing_file);
+ }
+ }
+
+ return NULL;
+}
+
#define NB_SUFFIXES 4
char *get_human_readable_size(char *buf, int buf_size, int64_t size)
@@ -3140,7 +3189,7 @@ static void coroutine_fn bdrv_co_do_rw(void *opaque)
if (!acb->is_write) {
acb->req.error = bdrv_co_do_readv(bs, acb->req.sector,
- acb->req.nb_sectors, acb->req.qiov);
+ acb->req.nb_sectors, acb->req.qiov, 0);
} else {
acb->req.error = bdrv_co_do_writev(bs, acb->req.sector,
acb->req.nb_sectors, acb->req.qiov);
@@ -3827,3 +3876,51 @@ out:
return ret;
}
+
+void *block_job_create(const BlockJobType *job_type, BlockDriverState *bs,
+ BlockDriverCompletionFunc *cb, void *opaque)
+{
+ BlockJob *job;
+
+ if (bs->job || bdrv_in_use(bs)) {
+ return NULL;
+ }
+ bdrv_set_in_use(bs, 1);
+
+ job = g_malloc0(job_type->instance_size);
+ job->job_type = job_type;
+ job->bs = bs;
+ job->cb = cb;
+ job->opaque = opaque;
+ bs->job = job;
+ return job;
+}
+
+void block_job_complete(BlockJob *job, int ret)
+{
+ BlockDriverState *bs = job->bs;
+
+ assert(bs->job == job);
+ job->cb(job->opaque, ret);
+ bs->job = NULL;
+ g_free(job);
+ bdrv_set_in_use(bs, 0);
+}
+
+int block_job_set_speed(BlockJob *job, int64_t value)
+{
+ if (!job->job_type->set_speed) {
+ return -ENOTSUP;
+ }
+ return job->job_type->set_speed(job, value);
+}
+
+void block_job_cancel(BlockJob *job)
+{
+ job->cancelled = true;
+}
+
+bool block_job_is_cancelled(BlockJob *job)
+{
+ return job->cancelled;
+}
diff --git a/block.h b/block.h
index 3bd4398609..cae289b2fb 100644
--- a/block.h
+++ b/block.h
@@ -142,10 +142,14 @@ int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
const void *buf, int count);
int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
int nb_sectors, QEMUIOVector *qiov);
+int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs,
+ int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num,
int nb_sectors, QEMUIOVector *qiov);
int coroutine_fn bdrv_co_is_allocated(BlockDriverState *bs, int64_t sector_num,
int nb_sectors, int *pnum);
+BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs,
+ const char *backing_file);
int bdrv_truncate(BlockDriverState *bs, int64_t offset);
int64_t bdrv_getlength(BlockDriverState *bs);
int64_t bdrv_get_allocated_file_size(BlockDriverState *bs);
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 9b885359e4..a251802ad4 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -292,10 +292,10 @@ static int blkdebug_open(BlockDriverState *bs, const char *filename, int flags)
return -EINVAL;
}
- config = strdup(filename);
+ config = g_strdup(filename);
config[c - filename] = '\0';
ret = read_config(s, config);
- free(config);
+ g_free(config);
if (ret < 0) {
return ret;
}
diff --git a/block/blkverify.c b/block/blkverify.c
index 4ca8584b88..9d5f1ec5b9 100644
--- a/block/blkverify.c
+++ b/block/blkverify.c
@@ -87,10 +87,10 @@ static int blkverify_open(BlockDriverState *bs, const char *filename, int flags)
return -EINVAL;
}
- raw = strdup(filename);
+ raw = g_strdup(filename);
raw[c - filename] = '\0';
ret = bdrv_file_open(&bs->file, raw, flags);
- free(raw);
+ g_free(raw);
if (ret < 0) {
return ret;
}
diff --git a/block/qcow.c b/block/qcow.c
index b16955d764..b1cfe1f696 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -95,11 +95,13 @@ static int qcow_probe(const uint8_t *buf, int buf_size, const char *filename)
static int qcow_open(BlockDriverState *bs, int flags)
{
BDRVQcowState *s = bs->opaque;
- int len, i, shift;
+ int len, i, shift, ret;
QCowHeader header;
- if (bdrv_pread(bs->file, 0, &header, sizeof(header)) != sizeof(header))
+ ret = bdrv_pread(bs->file, 0, &header, sizeof(header));
+ if (ret < 0) {
goto fail;
+ }
be32_to_cpus(&header.magic);
be32_to_cpus(&header.version);
be64_to_cpus(&header.backing_file_offset);
@@ -109,15 +111,31 @@ static int qcow_open(BlockDriverState *bs, int flags)
be32_to_cpus(&header.crypt_method);
be64_to_cpus(&header.l1_table_offset);
- if (header.magic != QCOW_MAGIC || header.version != QCOW_VERSION)
+ if (header.magic != QCOW_MAGIC) {
+ ret = -EINVAL;
goto fail;
- if (header.size <= 1 || header.cluster_bits < 9)
+ }
+ if (header.version != QCOW_VERSION) {
+ char version[64];
+ snprintf(version, sizeof(version), "QCOW version %d", header.version);
+ qerror_report(QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,
+ bs->device_name, "qcow", version);
+ ret = -ENOTSUP;
goto fail;
- if (header.crypt_method > QCOW_CRYPT_AES)
+ }
+
+ if (header.size <= 1 || header.cluster_bits < 9) {
+ ret = -EINVAL;
+ goto fail;
+ }
+ if (header.crypt_method > QCOW_CRYPT_AES) {
+ ret = -EINVAL;
goto fail;
+ }
s->crypt_method_header = header.crypt_method;
- if (s->crypt_method_header)
+ if (s->crypt_method_header) {
bs->encrypted = 1;
+ }
s->cluster_bits = header.cluster_bits;
s->cluster_size = 1 << s->cluster_bits;
s->cluster_sectors = 1 << (s->cluster_bits - 9);
@@ -132,33 +150,33 @@ static int qcow_open(BlockDriverState *bs, int flags)
s->l1_table_offset = header.l1_table_offset;
s->l1_table = g_malloc(s->l1_size * sizeof(uint64_t));
- if (!s->l1_table)
- goto fail;
- if (bdrv_pread(bs->file, s->l1_table_offset, s->l1_table, s->l1_size * sizeof(uint64_t)) !=
- s->l1_size * sizeof(uint64_t))
+
+ ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,
+ s->l1_size * sizeof(uint64_t));
+ if (ret < 0) {
goto fail;
+ }
+
for(i = 0;i < s->l1_size; i++) {
be64_to_cpus(&s->l1_table[i]);
}
/* alloc L2 cache */
s->l2_cache = g_malloc(s->l2_size * L2_CACHE_SIZE * sizeof(uint64_t));
- if (!s->l2_cache)
- goto fail;
s->cluster_cache = g_malloc(s->cluster_size);
- if (!s->cluster_cache)
- goto fail;
s->cluster_data = g_malloc(s->cluster_size);
- if (!s->cluster_data)
- goto fail;
s->cluster_cache_offset = -1;
/* read the backing file name */
if (header.backing_file_offset != 0) {
len = header.backing_file_size;
- if (len > 1023)
+ if (len > 1023) {
len = 1023;
- if (bdrv_pread(bs->file, header.backing_file_offset, bs->backing_file, len) != len)
+ }
+ ret = bdrv_pread(bs->file, header.backing_file_offset,
+ bs->backing_file, len);
+ if (ret < 0) {
goto fail;
+ }
bs->backing_file[len] = '\0';
}
@@ -176,7 +194,7 @@ static int qcow_open(BlockDriverState *bs, int flags)
g_free(s->l2_cache);
g_free(s->cluster_cache);
g_free(s->cluster_data);
- return -1;
+ return ret;
}
static int qcow_set_key(BlockDriverState *bs, const char *key)
@@ -626,13 +644,14 @@ static void qcow_close(BlockDriverState *bs)
static int qcow_create(const char *filename, QEMUOptionParameter *options)
{
- int fd, header_size, backing_filename_len, l1_size, i, shift;
+ int header_size, backing_filename_len, l1_size, shift, i;
QCowHeader header;
- uint64_t tmp;
+ uint8_t *tmp;
int64_t total_size = 0;
const char *backing_file = NULL;
int flags = 0;
int ret;
+ BlockDriverState *qcow_bs;
/* Read out options */
while (options && options->name) {
@@ -646,9 +665,21 @@ static int qcow_create(const char *filename, QEMUOptionParameter *options)
options++;
}
- fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
- if (fd < 0)
- return -errno;
+ ret = bdrv_create_file(filename, options);
+ if (ret < 0) {
+ return ret;
+ }
+
+ ret = bdrv_file_open(&qcow_bs, filename, BDRV_O_RDWR);
+ if (ret < 0) {
+ return ret;
+ }
+
+ ret = bdrv_truncate(qcow_bs, 0);
+ if (ret < 0) {
+ goto exit;
+ }
+
memset(&header, 0, sizeof(header));
header.magic = cpu_to_be32(QCOW_MAGIC);
header.version = cpu_to_be32(QCOW_VERSION);
@@ -684,33 +715,34 @@ static int qcow_create(const char *filename, QEMUOptionParameter *options)
}
/* write all the data */
- ret = qemu_write_full(fd, &header, sizeof(header));
+ ret = bdrv_pwrite(qcow_bs, 0, &header, sizeof(header));
if (ret != sizeof(header)) {
- ret = -errno;
goto exit;
}
if (backing_file) {
- ret = qemu_write_full(fd, backing_file, backing_filename_len);
+ ret = bdrv_pwrite(qcow_bs, sizeof(header),
+ backing_file, backing_filename_len);
if (ret != backing_filename_len) {
- ret = -errno;
goto exit;
}
-
}
- lseek(fd, header_size, SEEK_SET);
- tmp = 0;
- for(i = 0;i < l1_size; i++) {
- ret = qemu_write_full(fd, &tmp, sizeof(tmp));
- if (ret != sizeof(tmp)) {
- ret = -errno;
+
+ tmp = g_malloc0(BDRV_SECTOR_SIZE);
+ for (i = 0; i < ((sizeof(uint64_t)*l1_size + BDRV_SECTOR_SIZE - 1)/
+ BDRV_SECTOR_SIZE); i++) {
+ ret = bdrv_pwrite(qcow_bs, header_size +
+ BDRV_SECTOR_SIZE*i, tmp, BDRV_SECTOR_SIZE);
+ if (ret != BDRV_SECTOR_SIZE) {
+ g_free(tmp);
goto exit;
}
}
+ g_free(tmp);
ret = 0;
exit:
- close(fd);
+ bdrv_delete(qcow_bs);
return ret;
}
diff --git a/block/rbd.c b/block/rbd.c
index db5abf240b..46a8579018 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -789,6 +789,26 @@ static int qemu_rbd_snap_create(BlockDriverState *bs,
return 0;
}
+static int qemu_rbd_snap_remove(BlockDriverState *bs,
+ const char *snapshot_name)
+{
+ BDRVRBDState *s = bs->opaque;
+ int r;
+
+ r = rbd_snap_remove(s->image, snapshot_name);
+ return r;
+}
+
+static int qemu_rbd_snap_rollback(BlockDriverState *bs,
+ const char *snapshot_name)
+{
+ BDRVRBDState *s = bs->opaque;
+ int r;
+
+ r = rbd_snap_rollback(s->image, snapshot_name);
+ return r;
+}
+
static int qemu_rbd_snap_list(BlockDriverState *bs,
QEMUSnapshotInfo **psn_tab)
{
@@ -862,7 +882,9 @@ static BlockDriver bdrv_rbd = {
.bdrv_co_flush_to_disk = qemu_rbd_co_flush,
.bdrv_snapshot_create = qemu_rbd_snap_create,
+ .bdrv_snapshot_delete = qemu_rbd_snap_remove,
.bdrv_snapshot_list = qemu_rbd_snap_list,
+ .bdrv_snapshot_goto = qemu_rbd_snap_rollback,
};
static void bdrv_rbd_init(void)
diff --git a/block/stream.c b/block/stream.c
new file mode 100644
index 0000000000..d1b3986a8a
--- /dev/null
+++ b/block/stream.c
@@ -0,0 +1,269 @@
+/*
+ * Image streaming
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#include "trace.h"
+#include "block_int.h"
+
+enum {
+ /*
+ * Size of data buffer for populating the image file. This should be large
+ * enough to process multiple clusters in a single call, so that populating
+ * contiguous regions of the image is efficient.
+ */
+ STREAM_BUFFER_SIZE = 512 * 1024, /* in bytes */
+};
+
+#define SLICE_TIME 100000000ULL /* ns */
+
+typedef struct {
+ int64_t next_slice_time;
+ uint64_t slice_quota;
+ uint64_t dispatched;
+} RateLimit;
+
+static int64_t ratelimit_calculate_delay(RateLimit *limit, uint64_t n)
+{
+ int64_t delay_ns = 0;
+ int64_t now = qemu_get_clock_ns(rt_clock);
+
+ if (limit->next_slice_time < now) {
+ limit->next_slice_time = now + SLICE_TIME;
+ limit->dispatched = 0;
+ }
+ if (limit->dispatched + n > limit->slice_quota) {
+ delay_ns = limit->next_slice_time - now;
+ } else {
+ limit->dispatched += n;
+ }
+ return delay_ns;
+}
+
+static void ratelimit_set_speed(RateLimit *limit, uint64_t speed)
+{
+ limit->slice_quota = speed / (1000000000ULL / SLICE_TIME);
+}
+
+typedef struct StreamBlockJob {
+ BlockJob common;
+ RateLimit limit;
+ BlockDriverState *base;
+ char backing_file_id[1024];
+} StreamBlockJob;
+
+static int coroutine_fn stream_populate(BlockDriverState *bs,
+ int64_t sector_num, int nb_sectors,
+ void *buf)
+{
+ struct iovec iov = {
+ .iov_base = buf,
+ .iov_len = nb_sectors * BDRV_SECTOR_SIZE,
+ };
+ QEMUIOVector qiov;
+
+ qemu_iovec_init_external(&qiov, &iov, 1);
+
+ /* Copy-on-read the unallocated clusters */
+ return bdrv_co_copy_on_readv(bs, sector_num, nb_sectors, &qiov);
+}
+
+/*
+ * Given an image chain: [BASE] -> [INTER1] -> [INTER2] -> [TOP]
+ *
+ * Return true if the given sector is allocated in top.
+ * Return false if the given sector is allocated in intermediate images.
+ * Return true otherwise.
+ *
+ * 'pnum' is set to the number of sectors (including and immediately following
+ * the specified sector) that are known to be in the same
+ * allocated/unallocated state.
+ *
+ */
+static int coroutine_fn is_allocated_base(BlockDriverState *top,
+ BlockDriverState *base,
+ int64_t sector_num,
+ int nb_sectors, int *pnum)
+{
+ BlockDriverState *intermediate;
+ int ret, n;
+
+ ret = bdrv_co_is_allocated(top, sector_num, nb_sectors, &n);
+ if (ret) {
+ *pnum = n;
+ return ret;
+ }
+
+ /*
+ * Is the unallocated chunk [sector_num, n] also
+ * unallocated between base and top?
+ */
+ intermediate = top->backing_hd;
+
+ while (intermediate) {
+ int pnum_inter;
+
+ /* reached base */
+ if (intermediate == base) {
+ *pnum = n;
+ return 1;
+ }
+ ret = bdrv_co_is_allocated(intermediate, sector_num, nb_sectors,
+ &pnum_inter);
+ if (ret < 0) {
+ return ret;
+ } else if (ret) {
+ *pnum = pnum_inter;
+ return 0;
+ }
+
+ /*
+ * [sector_num, nb_sectors] is unallocated on top but intermediate
+ * might have
+ *
+ * [sector_num+x, nr_sectors] allocated.
+ */
+ if (n > pnum_inter) {
+ n = pnum_inter;
+ }
+
+ intermediate = intermediate->backing_hd;
+ }
+
+ return 1;
+}
+
+static void coroutine_fn stream_run(void *opaque)
+{
+ StreamBlockJob *s = opaque;
+ BlockDriverState *bs = s->common.bs;
+ BlockDriverState *base = s->base;
+ int64_t sector_num, end;
+ int ret = 0;
+ int n;
+ void *buf;
+
+ s->common.len = bdrv_getlength(bs);
+ if (s->common.len < 0) {
+ block_job_complete(&s->common, s->common.len);
+ return;
+ }
+
+ end = s->common.len >> BDRV_SECTOR_BITS;
+ buf = qemu_blockalign(bs, STREAM_BUFFER_SIZE);
+
+ /* Turn on copy-on-read for the whole block device so that guest read
+ * requests help us make progress. Only do this when copying the entire
+ * backing chain since the copy-on-read operation does not take base into
+ * account.
+ */
+ if (!base) {
+ bdrv_enable_copy_on_read(bs);
+ }
+
+ for (sector_num = 0; sector_num < end; sector_num += n) {
+retry:
+ if (block_job_is_cancelled(&s->common)) {
+ break;
+ }
+
+
+ if (base) {
+ ret = is_allocated_base(bs, base, sector_num,
+ STREAM_BUFFER_SIZE / BDRV_SECTOR_SIZE, &n);
+ } else {
+ ret = bdrv_co_is_allocated(bs, sector_num,
+ STREAM_BUFFER_SIZE / BDRV_SECTOR_SIZE,
+ &n);
+ }
+ trace_stream_one_iteration(s, sector_num, n, ret);
+ if (ret == 0) {
+ if (s->common.speed) {
+ uint64_t delay_ns = ratelimit_calculate_delay(&s->limit, n);
+ if (delay_ns > 0) {
+ co_sleep_ns(rt_clock, delay_ns);
+
+ /* Recheck cancellation and that sectors are unallocated */
+ goto retry;
+ }
+ }
+ ret = stream_populate(bs, sector_num, n, buf);
+ }
+ if (ret < 0) {
+ break;
+ }
+ ret = 0;
+
+ /* Publish progress */
+ s->common.offset += n * BDRV_SECTOR_SIZE;
+
+ /* Note that even when no rate limit is applied we need to yield
+ * with no pending I/O here so that qemu_aio_flush() returns.
+ */
+ co_sleep_ns(rt_clock, 0);
+ }
+
+ if (!base) {
+ bdrv_disable_copy_on_read(bs);
+ }
+
+ if (sector_num == end && ret == 0) {
+ const char *base_id = NULL;
+ if (base) {
+ base_id = s->backing_file_id;
+ }
+ ret = bdrv_change_backing_file(bs, base_id, NULL);
+ }
+
+ qemu_vfree(buf);
+ block_job_complete(&s->common, ret);
+}
+
+static int stream_set_speed(BlockJob *job, int64_t value)
+{
+ StreamBlockJob *s = container_of(job, StreamBlockJob, common);
+
+ if (value < 0) {
+ return -EINVAL;
+ }
+ job->speed = value;
+ ratelimit_set_speed(&s->limit, value / BDRV_SECTOR_SIZE);
+ return 0;
+}
+
+static BlockJobType stream_job_type = {
+ .instance_size = sizeof(StreamBlockJob),
+ .job_type = "stream",
+ .set_speed = stream_set_speed,
+};
+
+int stream_start(BlockDriverState *bs, BlockDriverState *base,
+ const char *base_id, BlockDriverCompletionFunc *cb,
+ void *opaque)
+{
+ StreamBlockJob *s;
+ Coroutine *co;
+
+ s = block_job_create(&stream_job_type, bs, cb, opaque);
+ if (!s) {
+ return -EBUSY; /* bs must already be in use */
+ }
+
+ s->base = base;
+ if (base_id) {
+ pstrcpy(s->backing_file_id, sizeof(s->backing_file_id), base_id);
+ }
+
+ co = qemu_coroutine_create(stream_run);
+ trace_stream_start(bs, base, s, co, opaque);
+ qemu_coroutine_enter(co, s);
+ return 0;
+}
diff --git a/block/vdi.c b/block/vdi.c
index 31cdfabdea..6a0011fbcc 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -1,7 +1,7 @@
/*
* Block driver for the Virtual Disk Image (VDI) format
*
- * Copyright (c) 2009 Stefan Weil
+ * Copyright (c) 2009, 2012 Stefan Weil
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -756,15 +756,19 @@ static void vdi_aio_write_cb(void *opaque, int ret)
(uint64_t)bmap_entry * s->block_sectors;
block = acb->block_buffer;
if (block == NULL) {
- block = g_malloc0(s->block_size);
+ block = g_malloc(s->block_size);
acb->block_buffer = block;
acb->bmap_first = block_index;
assert(!acb->header_modified);
acb->header_modified = 1;
}
acb->bmap_last = block_index;
+ /* Copy data to be written to new block and zero unused parts. */
+ memset(block, 0, sector_in_block * SECTOR_SIZE);
memcpy(block + sector_in_block * SECTOR_SIZE,
acb->buf, n_sectors * SECTOR_SIZE);
+ memset(block + (sector_in_block + n_sectors) * SECTOR_SIZE, 0,
+ (s->block_sectors - n_sectors - sector_in_block) * SECTOR_SIZE);
acb->hd_iov.iov_base = (void *)block;
acb->hd_iov.iov_len = s->block_size;
qemu_iovec_init_external(&acb->hd_qiov, &acb->hd_iov, 1);
diff --git a/block_int.h b/block_int.h
index 311bd2a6fa..7be2988ca7 100644
--- a/block_int.h
+++ b/block_int.h
@@ -69,6 +69,36 @@ typedef struct BlockIOBaseValue {
uint64_t ios[2];
} BlockIOBaseValue;
+typedef void BlockJobCancelFunc(void *opaque);
+typedef struct BlockJob BlockJob;
+typedef struct BlockJobType {
+ /** Derived BlockJob struct size */
+ size_t instance_size;
+
+ /** String describing the operation, part of query-block-jobs QMP API */
+ const char *job_type;
+
+ /** Optional callback for job types that support setting a speed limit */
+ int (*set_speed)(BlockJob *job, int64_t value);
+} BlockJobType;
+
+/**
+ * Long-running operation on a BlockDriverState
+ */
+struct BlockJob {
+ const BlockJobType *job_type;
+ BlockDriverState *bs;
+ bool cancelled;
+
+ /* These fields are published by the query-block-jobs QMP API */
+ int64_t offset;
+ int64_t len;
+ int64_t speed;
+
+ BlockDriverCompletionFunc *cb;
+ void *opaque;
+};
+
struct BlockDriver {
const char *format_name;
int instance_size;
@@ -218,6 +248,9 @@ struct BlockDriverState {
BlockDriverState *backing_hd;
BlockDriverState *file;
+ /* number of in-flight copy-on-read requests */
+ unsigned int copy_on_read_in_flight;
+
/* async read/write emulation */
void *sync_aiocb;
@@ -261,6 +294,9 @@ struct BlockDriverState {
void *private;
QLIST_HEAD(, BdrvTrackedRequest) tracked_requests;
+
+ /* long-running background operation */
+ BlockJob *job;
};
struct BlockDriverAIOCB {
@@ -284,4 +320,15 @@ void bdrv_set_io_limits(BlockDriverState *bs,
int is_windows_drive(const char *filename);
#endif
+void *block_job_create(const BlockJobType *job_type, BlockDriverState *bs,
+ BlockDriverCompletionFunc *cb, void *opaque);
+void block_job_complete(BlockJob *job, int ret);
+int block_job_set_speed(BlockJob *job, int64_t value);
+void block_job_cancel(BlockJob *job);
+bool block_job_is_cancelled(BlockJob *job);
+
+int stream_start(BlockDriverState *bs, BlockDriverState *base,
+ const char *base_id, BlockDriverCompletionFunc *cb,
+ void *opaque);
+
#endif /* BLOCK_INT_H */
diff --git a/blockdev.c b/blockdev.c
index 1f83c888e7..7e4c548426 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -13,9 +13,11 @@
#include "qerror.h"
#include "qemu-option.h"
#include "qemu-config.h"
+#include "qemu-objects.h"
#include "sysemu.h"
#include "block_int.h"
#include "qmp-commands.h"
+#include "trace.h"
static QTAILQ_HEAD(drivelist, DriveInfo) drives = QTAILQ_HEAD_INITIALIZER(drives);
@@ -200,6 +202,37 @@ void drive_get_ref(DriveInfo *dinfo)
dinfo->refcount++;
}
+typedef struct {
+ QEMUBH *bh;
+ DriveInfo *dinfo;
+} DrivePutRefBH;
+
+static void drive_put_ref_bh(void *opaque)
+{
+ DrivePutRefBH *s = opaque;
+
+ drive_put_ref(s->dinfo);
+ qemu_bh_delete(s->bh);
+ g_free(s);
+}
+
+/*
+ * Release a drive reference in a BH
+ *
+ * It is not possible to use drive_put_ref() from a callback function when the
+ * callers still need the drive. In such cases we schedule a BH to release the
+ * reference.
+ */
+static void drive_put_ref_bh_schedule(DriveInfo *dinfo)
+{
+ DrivePutRefBH *s;
+
+ s = g_new(DrivePutRefBH, 1);
+ s->bh = qemu_bh_new(drive_put_ref_bh, s);
+ s->dinfo = dinfo;
+ qemu_bh_schedule(s->bh);
+}
+
static int parse_block_error_action(const char *buf, int is_read)
{
if (!strcmp(buf, "ignore")) {
@@ -592,12 +625,18 @@ void do_commit(Monitor *mon, const QDict *qdict)
if (!strcmp(device, "all")) {
bdrv_commit_all();
} else {
+ int ret;
+
bs = bdrv_find(device);
if (!bs) {
qerror_report(QERR_DEVICE_NOT_FOUND, device);
return;
}
- bdrv_commit(bs);
+ ret = bdrv_commit(bs);
+ if (ret == -EBUSY) {
+ qerror_report(QERR_DEVICE_IN_USE, device);
+ return;
+ }
}
}
@@ -616,6 +655,10 @@ void qmp_blockdev_snapshot_sync(const char *device, const char *snapshot_file,
error_set(errp, QERR_DEVICE_NOT_FOUND, device);
return;
}
+ if (bdrv_in_use(bs)) {
+ error_set(errp, QERR_DEVICE_IN_USE, device);
+ return;
+ }
pstrcpy(old_filename, sizeof(old_filename), bs->filename);
@@ -667,6 +710,10 @@ void qmp_blockdev_snapshot_sync(const char *device, const char *snapshot_file,
static void eject_device(BlockDriverState *bs, int force, Error **errp)
{
+ if (bdrv_in_use(bs)) {
+ error_set(errp, QERR_DEVICE_IN_USE, bdrv_get_device_name(bs));
+ return;
+ }
if (!bdrv_dev_has_removable_media(bs)) {
error_set(errp, QERR_DEVICE_NOT_REMOVABLE, bdrv_get_device_name(bs));
return;
@@ -883,3 +930,153 @@ void qmp_block_resize(const char *device, int64_t size, Error **errp)
break;
}
}
+
+static QObject *qobject_from_block_job(BlockJob *job)
+{
+ return qobject_from_jsonf("{ 'type': %s,"
+ "'device': %s,"
+ "'len': %" PRId64 ","
+ "'offset': %" PRId64 ","
+ "'speed': %" PRId64 " }",
+ job->job_type->job_type,
+ bdrv_get_device_name(job->bs),
+ job->len,
+ job->offset,
+ job->speed);
+}
+
+static void block_stream_cb(void *opaque, int ret)
+{
+ BlockDriverState *bs = opaque;
+ QObject *obj;
+
+ trace_block_stream_cb(bs, bs->job, ret);
+
+ assert(bs->job);
+ obj = qobject_from_block_job(bs->job);
+ if (ret < 0) {
+ QDict *dict = qobject_to_qdict(obj);
+ qdict_put(dict, "error", qstring_from_str(strerror(-ret)));
+ }
+
+ if (block_job_is_cancelled(bs->job)) {
+ monitor_protocol_event(QEVENT_BLOCK_JOB_CANCELLED, obj);
+ } else {
+ monitor_protocol_event(QEVENT_BLOCK_JOB_COMPLETED, obj);
+ }
+ qobject_decref(obj);
+
+ drive_put_ref_bh_schedule(drive_get_by_blockdev(bs));
+}
+
+void qmp_block_stream(const char *device, bool has_base,
+ const char *base, Error **errp)
+{
+ BlockDriverState *bs;
+ BlockDriverState *base_bs = NULL;
+ int ret;
+
+ bs = bdrv_find(device);
+ if (!bs) {
+ error_set(errp, QERR_DEVICE_NOT_FOUND, device);
+ return;
+ }
+
+ if (base) {
+ base_bs = bdrv_find_backing_image(bs, base);
+ if (base_bs == NULL) {
+ error_set(errp, QERR_BASE_NOT_FOUND, base);
+ return;
+ }
+ }
+
+ ret = stream_start(bs, base_bs, base, block_stream_cb, bs);
+ if (ret < 0) {
+ switch (ret) {
+ case -EBUSY:
+ error_set(errp, QERR_DEVICE_IN_USE, device);
+ return;
+ default:
+ error_set(errp, QERR_NOT_SUPPORTED);
+ return;
+ }
+ }
+
+ /* Grab a reference so hotplug does not delete the BlockDriverState from
+ * underneath us.
+ */
+ drive_get_ref(drive_get_by_blockdev(bs));
+
+ trace_qmp_block_stream(bs, bs->job);
+}
+
+static BlockJob *find_block_job(const char *device)
+{
+ BlockDriverState *bs;
+
+ bs = bdrv_find(device);
+ if (!bs || !bs->job) {
+ return NULL;
+ }
+ return bs->job;
+}
+
+void qmp_block_job_set_speed(const char *device, int64_t value, Error **errp)
+{
+ BlockJob *job = find_block_job(device);
+
+ if (!job) {
+ error_set(errp, QERR_DEVICE_NOT_ACTIVE, device);
+ return;
+ }
+
+ if (block_job_set_speed(job, value) < 0) {
+ error_set(errp, QERR_NOT_SUPPORTED);
+ }
+}
+
+void qmp_block_job_cancel(const char *device, Error **errp)
+{
+ BlockJob *job = find_block_job(device);
+
+ if (!job) {
+ error_set(errp, QERR_DEVICE_NOT_ACTIVE, device);
+ return;
+ }
+
+ trace_qmp_block_job_cancel(job);
+ block_job_cancel(job);
+}
+
+static void do_qmp_query_block_jobs_one(void *opaque, BlockDriverState *bs)
+{
+ BlockJobInfoList **prev = opaque;
+ BlockJob *job = bs->job;
+
+ if (job) {
+ BlockJobInfoList *elem;
+ BlockJobInfo *info = g_new(BlockJobInfo, 1);
+ *info = (BlockJobInfo){
+ .type = g_strdup(job->job_type->job_type),
+ .device = g_strdup(bdrv_get_device_name(bs)),
+ .len = job->len,
+ .offset = job->offset,
+ .speed = job->speed,
+ };
+
+ elem = g_new0(BlockJobInfoList, 1);
+ elem->value = info;
+
+ (*prev)->next = elem;
+ *prev = elem;
+ }
+}
+
+BlockJobInfoList *qmp_query_block_jobs(Error **errp)
+{
+ /* Dummy is a fake list element for holding the head pointer */
+ BlockJobInfoList dummy = {};
+ BlockJobInfoList *prev = &dummy;
+ bdrv_iterate(do_qmp_query_block_jobs_one, &prev);
+ return dummy.next;
+}
diff --git a/configure b/configure
index 9d5175bb0f..69fb239749 100755
--- a/configure
+++ b/configure
@@ -766,6 +766,10 @@ for opt do
;;
--enable-rbd) rbd="yes"
;;
+ --disable-xfsctl) xfs="no"
+ ;;
+ --enable-xfsctl) xfs="yes"
+ ;;
--disable-smartcard) smartcard="no"
;;
--enable-smartcard) smartcard="yes"
diff --git a/docs/live-block-ops.txt b/docs/live-block-ops.txt
new file mode 100644
index 0000000000..a257087401
--- /dev/null
+++ b/docs/live-block-ops.txt
@@ -0,0 +1,58 @@
+LIVE BLOCK OPERATIONS
+=====================
+
+High level description of live block operations. Note these are not
+supported for use with the raw format at the moment.
+
+Snapshot live merge
+===================
+
+Given a snapshot chain, described in this document in the following
+format:
+
+[A] -> [B] -> [C] -> [D]
+
+Where the rightmost object ([D] in the example) described is the current
+image which the guest OS has write access to. To the left of it is its base
+image, and so on accordingly until the leftmost image, which has no
+base.
+
+The snapshot live merge operation transforms such a chain into a
+smaller one with fewer elements, such as this transformation relative
+to the first example:
+
+[A] -> [D]
+
+Currently only forward merge with target being the active image is
+supported, that is, data copy is performed in the right direction with
+destination being the rightmost image.
+
+The operation is implemented in QEMU through image streaming facilities.
+
+The basic idea is to execute 'block_stream virtio0' while the guest is
+running. Progress can be monitored using 'info block-jobs'. When the
+streaming operation completes it raises a QMP event. 'block_stream'
+copies data from the backing file(s) into the active image. When finished,
+it adjusts the backing file pointer.
+
+The 'base' parameter specifies an image which data need not be streamed from.
+This image will be used as the backing file for the active image when the
+operation is finished.
+
+In the example above, the command would be:
+
+(qemu) block_stream virtio0 A
+
+
+Live block copy
+===============
+
+To copy an in use image to another destination in the filesystem, one
+should create a live snapshot in the desired destination, then stream
+into that image. Example:
+
+(qemu) snapshot_blkdev ide0-hd0 /new-path/disk.img qcow2
+
+(qemu) block_stream ide0-hd0
+
+
diff --git a/hmp-commands.hx b/hmp-commands.hx
index e6506fc9d3..573b823347 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -69,6 +69,47 @@ but should be used with extreme caution. Note that this command only
resizes image files, it can not resize block devices like LVM volumes.
ETEXI
+ {
+ .name = "block_stream",
+ .args_type = "device:B,base:s?",
+ .params = "device [base]",
+ .help = "copy data from a backing file into a block device",
+ .mhandler.cmd = hmp_block_stream,
+ },
+
+STEXI
+@item block_stream
+@findex block_stream
+Copy data from a backing file into a block device.
+ETEXI
+
+ {
+ .name = "block_job_set_speed",
+ .args_type = "device:B,value:o",
+ .params = "device value",
+ .help = "set maximum speed for a background block operation",
+ .mhandler.cmd = hmp_block_job_set_speed,
+ },
+
+STEXI
+@item block_job_set_stream
+@findex block_job_set_stream
+Set maximum speed for a background block operation.
+ETEXI
+
+ {
+ .name = "block_job_cancel",
+ .args_type = "device:B",
+ .params = "device",
+ .help = "stop an active block streaming operation",
+ .mhandler.cmd = hmp_block_job_cancel,
+ },
+
+STEXI
+@item block_job_cancel
+@findex block_job_cancel
+Stop an active block streaming operation.
+ETEXI
{
.name = "eject",
diff --git a/hmp.c b/hmp.c
index 4664dbe8e4..8ff8c9434e 100644
--- a/hmp.c
+++ b/hmp.c
@@ -509,6 +509,42 @@ void hmp_info_pci(Monitor *mon)
qapi_free_PciInfoList(info_list);
}
+void hmp_info_block_jobs(Monitor *mon)
+{
+ BlockJobInfoList *list;
+ Error *err = NULL;
+
+ list = qmp_query_block_jobs(&err);
+ assert(!err);
+
+ if (!list) {
+ monitor_printf(mon, "No active jobs\n");
+ return;
+ }
+
+ while (list) {
+ if (strcmp(list->value->type, "stream") == 0) {
+ monitor_printf(mon, "Streaming device %s: Completed %" PRId64
+ " of %" PRId64 " bytes, speed limit %" PRId64
+ " bytes/s\n",
+ list->value->device,
+ list->value->offset,
+ list->value->len,
+ list->value->speed);
+ } else {
+ monitor_printf(mon, "Type %s, device %s: Completed %" PRId64
+ " of %" PRId64 " bytes, speed limit %" PRId64
+ " bytes/s\n",
+ list->value->type,
+ list->value->device,
+ list->value->offset,
+ list->value->len,
+ list->value->speed);
+ }
+ list = list->next;
+ }
+}
+
void hmp_quit(Monitor *mon, const QDict *qdict)
{
monitor_suspend(mon);
@@ -783,3 +819,35 @@ void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
qdict_get_int(qdict, "iops_wr"), &err);
hmp_handle_error(mon, &err);
}
+
+void hmp_block_stream(Monitor *mon, const QDict *qdict)
+{
+ Error *error = NULL;
+ const char *device = qdict_get_str(qdict, "device");
+ const char *base = qdict_get_try_str(qdict, "base");
+
+ qmp_block_stream(device, base != NULL, base, &error);
+
+ hmp_handle_error(mon, &error);
+}
+
+void hmp_block_job_set_speed(Monitor *mon, const QDict *qdict)
+{
+ Error *error = NULL;
+ const char *device = qdict_get_str(qdict, "device");
+ int64_t value = qdict_get_int(qdict, "value");
+
+ qmp_block_job_set_speed(device, value, &error);
+
+ hmp_handle_error(mon, &error);
+}
+
+void hmp_block_job_cancel(Monitor *mon, const QDict *qdict)
+{
+ Error *error = NULL;
+ const char *device = qdict_get_str(qdict, "device");
+
+ qmp_block_job_cancel(device, &error);
+
+ hmp_handle_error(mon, &error);
+}
diff --git a/hmp.h b/hmp.h
index aab0b1f508..18eecbdcb9 100644
--- a/hmp.h
+++ b/hmp.h
@@ -32,6 +32,7 @@ void hmp_info_vnc(Monitor *mon);
void hmp_info_spice(Monitor *mon);
void hmp_info_balloon(Monitor *mon);
void hmp_info_pci(Monitor *mon);
+void hmp_info_block_jobs(Monitor *mon);
void hmp_quit(Monitor *mon, const QDict *qdict);
void hmp_stop(Monitor *mon, const QDict *qdict);
void hmp_system_reset(Monitor *mon, const QDict *qdict);
@@ -54,5 +55,8 @@ void hmp_expire_password(Monitor *mon, const QDict *qdict);
void hmp_eject(Monitor *mon, const QDict *qdict);
void hmp_change(Monitor *mon, const QDict *qdict);
void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict);
+void hmp_block_stream(Monitor *mon, const QDict *qdict);
+void hmp_block_job_set_speed(Monitor *mon, const QDict *qdict);
+void hmp_block_job_cancel(Monitor *mon, const QDict *qdict);
#endif
diff --git a/hw/e1000.c b/hw/e1000.c
index 86c5416bd1..76e736f171 100644
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -1133,6 +1133,11 @@ static void e1000_reset(void *opaque)
memmove(d->mac_reg, mac_reg_init, sizeof mac_reg_init);
d->rxbuf_min_shift = 1;
memset(&d->tx, 0, sizeof d->tx);
+
+ if (d->nic->nc.link_down) {
+ d->mac_reg[STATUS] &= ~E1000_STATUS_LU;
+ d->phy_reg[PHY_STATUS] &= ~MII_SR_LINK_STATUS;
+ }
}
static NetClientInfo net_e1000_info = {
diff --git a/hw/pcnet.c b/hw/pcnet.c
index 306dc6ed7e..6aa48e0d24 100644
--- a/hw/pcnet.c
+++ b/hw/pcnet.c
@@ -688,7 +688,6 @@ static void pcnet_s_reset(PCNetState *s)
printf("pcnet_s_reset\n");
#endif
- s->lnkst = 0x40;
s->rdra = 0;
s->tdra = 0;
s->rap = 0;
@@ -1751,5 +1750,7 @@ int pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info)
}
*(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
+ s->lnkst = 0x40; /* initial link state: up */
+
return 0;
}
diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index 02f0dae0bc..ea3b2df35a 100644
--- a/hw/qdev-properties.c
+++ b/hw/qdev-properties.c
@@ -40,9 +40,9 @@ static void qdev_prop_cpy(DeviceState *dev, Property *props, void *src)
/* Bit */
static int parse_bit(DeviceState *dev, Property *prop, const char *str)
{
- if (!strncasecmp(str, "on", 2))
+ if (!strcasecmp(str, "on"))
bit_prop_set(dev, prop, true);
- else if (!strncasecmp(str, "off", 3))
+ else if (!strcasecmp(str, "off"))
bit_prop_set(dev, prop, false);
else
return -EINVAL;
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 5d8bf53586..11cfe73df8 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -391,9 +391,6 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf)
}
l = strlen(s->serial);
- if (l > req->cmd.xfer) {
- l = req->cmd.xfer;
- }
if (l > 20) {
l = 20;
}
@@ -1002,9 +999,6 @@ static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf)
outbuf[0] = ((buflen - 2) >> 8) & 0xff;
outbuf[1] = (buflen - 2) & 0xff;
}
- if (buflen > r->req.cmd.xfer) {
- buflen = r->req.cmd.xfer;
- }
return buflen;
}
@@ -1038,9 +1032,6 @@ static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf)
default:
return -1;
}
- if (toclen > req->cmd.xfer) {
- toclen = req->cmd.xfer;
- }
return toclen;
}
@@ -1251,6 +1242,7 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r)
scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE));
return -1;
}
+ buflen = MIN(buflen, req->cmd.xfer);
return buflen;
not_ready:
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 5b416c36ee..a5a439668b 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -346,6 +346,8 @@ static void virtio_blk_handle_read(VirtIOBlockReq *req)
bdrv_acct_start(req->dev->bs, &req->acct, req->qiov.size, BDRV_ACCT_READ);
+ trace_virtio_blk_handle_read(req, sector, req->qiov.size / 512);
+
if (sector & req->dev->sector_mask) {
virtio_blk_rw_complete(req, -EIO);
return;
diff --git a/monitor.c b/monitor.c
index 187083c450..aadbdcbf33 100644
--- a/monitor.c
+++ b/monitor.c
@@ -479,6 +479,12 @@ void monitor_protocol_event(MonitorEvent event, QObject *data)
case QEVENT_SPICE_DISCONNECTED:
event_name = "SPICE_DISCONNECTED";
break;
+ case QEVENT_BLOCK_JOB_COMPLETED:
+ event_name = "BLOCK_JOB_COMPLETED";
+ break;
+ case QEVENT_BLOCK_JOB_CANCELLED:
+ event_name = "BLOCK_JOB_CANCELLED";
+ break;
default:
abort();
break;
@@ -2312,6 +2318,13 @@ static mon_cmd_t info_cmds[] = {
.mhandler.info = hmp_info_blockstats,
},
{
+ .name = "block-jobs",
+ .args_type = "",
+ .params = "",
+ .help = "show progress of ongoing block device operations",
+ .mhandler.info = hmp_info_block_jobs,
+ },
+ {
.name = "registers",
.args_type = "",
.params = "",
diff --git a/monitor.h b/monitor.h
index 887c472a92..b72ea07050 100644
--- a/monitor.h
+++ b/monitor.h
@@ -36,6 +36,8 @@ typedef enum MonitorEvent {
QEVENT_SPICE_CONNECTED,
QEVENT_SPICE_INITIALIZED,
QEVENT_SPICE_DISCONNECTED,
+ QEVENT_BLOCK_JOB_COMPLETED,
+ QEVENT_BLOCK_JOB_CANCELLED,
QEVENT_MAX,
} MonitorEvent;
diff --git a/qapi-schema.json b/qapi-schema.json
index 735eb352b5..80debe679a 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -845,6 +845,38 @@
{ 'command': 'query-pci', 'returns': ['PciInfo'] }
##
+# @BlockJobInfo:
+#
+# Information about a long-running block device operation.
+#
+# @type: the job type ('stream' for image streaming)
+#
+# @device: the block device name
+#
+# @len: the maximum progress value
+#
+# @offset: the current progress value
+#
+# @speed: the rate limit, bytes per second
+#
+# Since: 1.1
+##
+{ 'type': 'BlockJobInfo',
+ 'data': {'type': 'str', 'device': 'str', 'len': 'int',
+ 'offset': 'int', 'speed': 'int'} }
+
+##
+# @query-block-jobs:
+#
+# Return information about long-running block device operations.
+#
+# Returns: a list of @BlockJobInfo for each active block job
+#
+# Since: 1.1
+##
+{ 'command': 'query-block-jobs', 'returns': ['BlockJobInfo'] }
+
+##
# @quit:
#
# This command will cause the QEMU process to exit gracefully. While every
@@ -1434,3 +1466,86 @@
{ 'command': 'block_set_io_throttle',
'data': { 'device': 'str', 'bps': 'int', 'bps_rd': 'int', 'bps_wr': 'int',
'iops': 'int', 'iops_rd': 'int', 'iops_wr': 'int' } }
+
+# @block_stream:
+#
+# Copy data from a backing file into a block device.
+#
+# The block streaming operation is performed in the background until the entire
+# backing file has been copied. This command returns immediately once streaming
+# has started. The status of ongoing block streaming operations can be checked
+# with query-block-jobs. The operation can be stopped before it has completed
+# using the block_job_cancel command.
+#
+# If a base file is specified then sectors are not copied from that base file and
+# its backing chain. When streaming completes the image file will have the base
+# file as its backing file. This can be used to stream a subset of the backing
+# file chain instead of flattening the entire image.
+#
+# On successful completion the image file is updated to drop the backing file
+# and the BLOCK_JOB_COMPLETED event is emitted.
+#
+# @device: the device name
+#
+# @base: #optional the common backing file name
+#
+# Returns: Nothing on success
+# If streaming is already active on this device, DeviceInUse
+# If @device does not exist, DeviceNotFound
+# If image streaming is not supported by this device, NotSupported
+# If @base does not exist, BaseNotFound
+#
+# Since: 1.1
+##
+{ 'command': 'block_stream', 'data': { 'device': 'str', '*base': 'str' } }
+
+##
+# @block_job_set_speed:
+#
+# Set maximum speed for a background block operation.
+#
+# This command can only be issued when there is an active block job.
+#
+# Throttling can be disabled by setting the speed to 0.
+#
+# @device: the device name
+#
+# @value: the maximum speed, in bytes per second
+#
+# Returns: Nothing on success
+# If the job type does not support throttling, NotSupported
+# If streaming is not active on this device, DeviceNotActive
+#
+# Since: 1.1
+##
+{ 'command': 'block_job_set_speed',
+ 'data': { 'device': 'str', 'value': 'int' } }
+
+##
+# @block_job_cancel:
+#
+# Stop an active block streaming operation.
+#
+# This command returns immediately after marking the active block streaming
+# operation for cancellation. It is an error to call this command if no
+# operation is in progress.
+#
+# The operation will cancel as soon as possible and then emit the
+# BLOCK_JOB_CANCELLED event. Before that happens the job is still visible when
+# enumerated using query-block-jobs.
+#
+# The image file retains its backing file unless the streaming operation happens
+# to complete just as it is being cancelled.
+#
+# A new block streaming operation can be started at a later time to finish
+# copying all data from the backing file.
+#
+# @device: the device name
+#
+# Returns: Nothing on success
+# If streaming is not active on this device, DeviceNotActive
+# If cancellation already in progress, DeviceInUse
+#
+# Since: 1.1
+##
+{ 'command': 'block_job_cancel', 'data': { 'device': 'str' } }
diff --git a/qemu-coroutine-sleep.c b/qemu-coroutine-sleep.c
new file mode 100644
index 0000000000..fd65274446
--- /dev/null
+++ b/qemu-coroutine-sleep.c
@@ -0,0 +1,38 @@
+/*
+ * QEMU coroutine sleep
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#include "qemu-coroutine.h"
+#include "qemu-timer.h"
+
+typedef struct CoSleepCB {
+ QEMUTimer *ts;
+ Coroutine *co;
+} CoSleepCB;
+
+static void co_sleep_cb(void *opaque)
+{
+ CoSleepCB *sleep_cb = opaque;
+
+ qemu_free_timer(sleep_cb->ts);
+ qemu_coroutine_enter(sleep_cb->co, NULL);
+}
+
+void coroutine_fn co_sleep_ns(QEMUClock *clock, int64_t ns)
+{
+ CoSleepCB sleep_cb = {
+ .co = qemu_coroutine_self(),
+ };
+ sleep_cb.ts = qemu_new_timer(clock, SCALE_NS, co_sleep_cb, &sleep_cb);
+ qemu_mod_timer(sleep_cb.ts, qemu_get_clock_ns(clock) + ns);
+ qemu_coroutine_yield();
+}
diff --git a/qemu-coroutine.h b/qemu-coroutine.h
index 8a55fe125e..34c15d4116 100644
--- a/qemu-coroutine.h
+++ b/qemu-coroutine.h
@@ -17,6 +17,7 @@
#include <stdbool.h>
#include "qemu-queue.h"
+#include "qemu-timer.h"
/**
* Coroutines are a mechanism for stack switching and can be used for
@@ -199,4 +200,12 @@ void qemu_co_rwlock_wrlock(CoRwlock *lock);
*/
void qemu_co_rwlock_unlock(CoRwlock *lock);
+/**
+ * Yield the coroutine for a given duration
+ *
+ * Note this function uses timers and hence only works when a main loop is in
+ * use. See main-loop.h and do not use from qemu-tool programs.
+ */
+void coroutine_fn co_sleep_ns(QEMUClock *clock, int64_t ns);
+
#endif /* QEMU_COROUTINE_H */
diff --git a/qemu-io.c b/qemu-io.c
index ffa62fb46f..d4a5fcbcbc 100644
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -130,7 +130,7 @@ static void print_report(const char *op, struct timeval *t, int64_t offset,
static void *
create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern)
{
- size_t *sizes = calloc(nr_iov, sizeof(size_t));
+ size_t *sizes = g_new0(size_t, nr_iov);
size_t count = 0;
void *buf = NULL;
void *p;
@@ -172,7 +172,7 @@ create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern)
}
fail:
- free(sizes);
+ g_free(sizes);
return buf;
}
@@ -471,14 +471,14 @@ static int read_f(int argc, char **argv)
}
if (Pflag) {
- void *cmp_buf = malloc(pattern_count);
+ void *cmp_buf = g_malloc(pattern_count);
memset(cmp_buf, pattern, pattern_count);
if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) {
printf("Pattern verification failed at offset %"
PRId64 ", %d bytes\n",
offset + pattern_offset, pattern_count);
}
- free(cmp_buf);
+ g_free(cmp_buf);
}
if (qflag) {
@@ -601,13 +601,13 @@ static int readv_f(int argc, char **argv)
}
if (Pflag) {
- void *cmp_buf = malloc(qiov.size);
+ void *cmp_buf = g_malloc(qiov.size);
memset(cmp_buf, pattern, qiov.size);
if (memcmp(buf, cmp_buf, qiov.size)) {
printf("Pattern verification failed at offset %"
PRId64 ", %zd bytes\n", offset, qiov.size);
}
- free(cmp_buf);
+ g_free(cmp_buf);
}
if (qflag) {
@@ -1063,7 +1063,7 @@ static void aio_write_done(void *opaque, int ret)
ctx->qiov.size, 1, ctx->Cflag);
out:
qemu_io_free(ctx->buf);
- free(ctx);
+ g_free(ctx);
}
static void aio_read_done(void *opaque, int ret)
@@ -1079,14 +1079,14 @@ static void aio_read_done(void *opaque, int ret)
}
if (ctx->Pflag) {
- void *cmp_buf = malloc(ctx->qiov.size);
+ void *cmp_buf = g_malloc(ctx->qiov.size);
memset(cmp_buf, ctx->pattern, ctx->qiov.size);
if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) {
printf("Pattern verification failed at offset %"
PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size);
}
- free(cmp_buf);
+ g_free(cmp_buf);
}
if (ctx->qflag) {
@@ -1103,7 +1103,7 @@ static void aio_read_done(void *opaque, int ret)
ctx->qiov.size, 1, ctx->Cflag);
out:
qemu_io_free(ctx->buf);
- free(ctx);
+ g_free(ctx);
}
static void aio_read_help(void)
@@ -1118,7 +1118,7 @@ static void aio_read_help(void)
" Reads a segment of the currently open file, optionally dumping it to the\n"
" standard output stream (with -v option) for subsequent inspection.\n"
" The read is performed asynchronously and the aio_flush command must be\n"
-" used to ensure all outstanding aio requests have been completed\n"
+" used to ensure all outstanding aio requests have been completed.\n"
" -C, -- report statistics in a machine parsable format\n"
" -P, -- use a pattern to verify read data\n"
" -v, -- dump buffer to standard output\n"
@@ -1141,7 +1141,7 @@ static const cmdinfo_t aio_read_cmd = {
static int aio_read_f(int argc, char **argv)
{
int nr_iov, c;
- struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx));
+ struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
while ((c = getopt(argc, argv, "CP:qv")) != EOF) {
switch (c) {
@@ -1152,7 +1152,7 @@ static int aio_read_f(int argc, char **argv)
ctx->Pflag = 1;
ctx->pattern = parse_pattern(optarg);
if (ctx->pattern < 0) {
- free(ctx);
+ g_free(ctx);
return 0;
}
break;
@@ -1163,20 +1163,20 @@ static int aio_read_f(int argc, char **argv)
ctx->vflag = 1;
break;
default:
- free(ctx);
+ g_free(ctx);
return command_usage(&aio_read_cmd);
}
}
if (optind > argc - 2) {
- free(ctx);
+ g_free(ctx);
return command_usage(&aio_read_cmd);
}
ctx->offset = cvtnum(argv[optind]);
if (ctx->offset < 0) {
printf("non-numeric length argument -- %s\n", argv[optind]);
- free(ctx);
+ g_free(ctx);
return 0;
}
optind++;
@@ -1184,14 +1184,14 @@ static int aio_read_f(int argc, char **argv)
if (ctx->offset & 0x1ff) {
printf("offset %" PRId64 " is not sector aligned\n",
ctx->offset);
- free(ctx);
+ g_free(ctx);
return 0;
}
nr_iov = argc - optind;
ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, 0xab);
if (ctx->buf == NULL) {
- free(ctx);
+ g_free(ctx);
return 0;
}
@@ -1214,7 +1214,7 @@ static void aio_write_help(void)
" Writes into a segment of the currently open file, using a buffer\n"
" filled with a set pattern (0xcdcdcdcd).\n"
" The write is performed asynchronously and the aio_flush command must be\n"
-" used to ensure all outstanding aio requests have been completed\n"
+" used to ensure all outstanding aio requests have been completed.\n"
" -P, -- use different pattern to fill file\n"
" -C, -- report statistics in a machine parsable format\n"
" -q, -- quiet mode, do not show I/O statistics\n"
@@ -1237,7 +1237,7 @@ static int aio_write_f(int argc, char **argv)
{
int nr_iov, c;
int pattern = 0xcd;
- struct aio_ctx *ctx = calloc(1, sizeof(struct aio_ctx));
+ struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
while ((c = getopt(argc, argv, "CqP:")) != EOF) {
switch (c) {
@@ -1250,25 +1250,25 @@ static int aio_write_f(int argc, char **argv)
case 'P':
pattern = parse_pattern(optarg);
if (pattern < 0) {
- free(ctx);
+ g_free(ctx);
return 0;
}
break;
default:
- free(ctx);
+ g_free(ctx);
return command_usage(&aio_write_cmd);
}
}
if (optind > argc - 2) {
- free(ctx);
+ g_free(ctx);
return command_usage(&aio_write_cmd);
}
ctx->offset = cvtnum(argv[optind]);
if (ctx->offset < 0) {
printf("non-numeric length argument -- %s\n", argv[optind]);
- free(ctx);
+ g_free(ctx);
return 0;
}
optind++;
@@ -1276,14 +1276,14 @@ static int aio_write_f(int argc, char **argv)
if (ctx->offset & 0x1ff) {
printf("offset %" PRId64 " is not sector aligned\n",
ctx->offset);
- free(ctx);
+ g_free(ctx);
return 0;
}
nr_iov = argc - optind;
ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern);
if (ctx->buf == NULL) {
- free(ctx);
+ g_free(ctx);
return 0;
}
diff --git a/qemu-timer.c b/qemu-timer.c
index cd026c6495..a22f27e9f8 100644
--- a/qemu-timer.c
+++ b/qemu-timer.c
@@ -494,35 +494,6 @@ static void host_alarm_handler(int host_signum)
if (!t)
return;
-#if 0
-#define DISP_FREQ 1000
- {
- static int64_t delta_min = INT64_MAX;
- static int64_t delta_max, delta_cum, last_clock, delta, ti;
- static int count;
- ti = qemu_get_clock_ns(vm_clock);
- if (last_clock != 0) {
- delta = ti - last_clock;
- if (delta < delta_min)
- delta_min = delta;
- if (delta > delta_max)
- delta_max = delta;
- delta_cum += delta;
- if (++count == DISP_FREQ) {
- printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
- muldiv64(delta_min, 1000000, get_ticks_per_sec()),
- muldiv64(delta_max, 1000000, get_ticks_per_sec()),
- muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
- (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
- count = 0;
- delta_min = INT64_MAX;
- delta_max = 0;
- delta_cum = 0;
- }
- }
- last_clock = ti;
- }
-#endif
if (alarm_has_dynticks(t) ||
qemu_next_alarm_deadline () <= 0) {
t->expired = alarm_has_dynticks(t);
diff --git a/qerror.c b/qerror.c
index 3d95383940..637eca793c 100644
--- a/qerror.c
+++ b/qerror.c
@@ -52,6 +52,10 @@ static const QErrorStringTable qerror_table[] = {
.desc = "Device '%(device)' can't go on a %(bad_bus_type) bus",
},
{
+ .error_fmt = QERR_BASE_NOT_FOUND,
+ .desc = "Base '%(base)' not found",
+ },
+ {
.error_fmt = QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED,
.desc = "Block format '%(format)' used by device '%(name)' does not support feature '%(feature)'",
},
@@ -197,6 +201,10 @@ static const QErrorStringTable qerror_table[] = {
.desc = "No '%(bus)' bus found for device '%(device)'",
},
{
+ .error_fmt = QERR_NOT_SUPPORTED,
+ .desc = "Not supported",
+ },
+ {
.error_fmt = QERR_OPEN_FILE_FAILED,
.desc = "Could not open '%(filename)'",
},
diff --git a/qerror.h b/qerror.h
index 89160dd78e..8c36ddb7e1 100644
--- a/qerror.h
+++ b/qerror.h
@@ -57,6 +57,9 @@ QError *qobject_to_qerror(const QObject *obj);
#define QERR_BAD_BUS_FOR_DEVICE \
"{ 'class': 'BadBusForDevice', 'data': { 'device': %s, 'bad_bus_type': %s } }"
+#define QERR_BASE_NOT_FOUND \
+ "{ 'class': 'BaseNotFound', 'data': { 'base': %s } }"
+
#define QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED \
"{ 'class': 'BlockFormatFeatureNotSupported', 'data': { 'format': %s, 'name': %s, 'feature': %s } }"
@@ -168,6 +171,9 @@ QError *qobject_to_qerror(const QObject *obj);
#define QERR_NO_BUS_FOR_DEVICE \
"{ 'class': 'NoBusForDevice', 'data': { 'device': %s, 'bus': %s } }"
+#define QERR_NOT_SUPPORTED \
+ "{ 'class': 'NotSupported', 'data': {} }"
+
#define QERR_OPEN_FILE_FAILED \
"{ 'class': 'OpenFileFailed', 'data': { 'filename': %s } }"
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 799e655988..bd6b6410ad 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -649,6 +649,24 @@ Example:
EQMP
{
+ .name = "block_stream",
+ .args_type = "device:B,base:s?",
+ .mhandler.cmd_new = qmp_marshal_input_block_stream,
+ },
+
+ {
+ .name = "block_job_set_speed",
+ .args_type = "device:B,value:o",
+ .mhandler.cmd_new = qmp_marshal_input_block_job_set_speed,
+ },
+
+ {
+ .name = "block_job_cancel",
+ .args_type = "device:B",
+ .mhandler.cmd_new = qmp_marshal_input_block_job_cancel,
+ },
+
+ {
.name = "blockdev-snapshot-sync",
.args_type = "device:B,snapshot-file:s,format:s?",
.mhandler.cmd_new = qmp_marshal_input_blockdev_snapshot_sync,
@@ -1996,6 +2014,12 @@ EQMP
},
{
+ .name = "query-block-jobs",
+ .args_type = "",
+ .mhandler.cmd_new = qmp_marshal_input_query_block_jobs,
+ },
+
+ {
.name = "qom-list",
.args_type = "path:s",
.mhandler.cmd_new = qmp_marshal_input_qom_list,
diff --git a/trace-events b/trace-events
index d2b0c6181d..75f6e17abe 100644
--- a/trace-events
+++ b/trace-events
@@ -65,14 +65,25 @@ bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %
bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
bdrv_lock_medium(void *bs, bool locked) "bs %p locked %d"
bdrv_co_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
+bdrv_co_copy_on_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
bdrv_co_writev(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
bdrv_co_io_em(void *bs, int64_t sector_num, int nb_sectors, int is_write, void *acb) "bs %p sector_num %"PRId64" nb_sectors %d is_write %d acb %p"
-bdrv_co_copy_on_readv(void *bs, int64_t sector_num, int nb_sectors, int64_t cluster_sector_num, int cluster_nb_sectors) "bs %p sector_num %"PRId64" nb_sectors %d cluster_sector_num %"PRId64" cluster_nb_sectors %d"
+bdrv_co_do_copy_on_readv(void *bs, int64_t sector_num, int nb_sectors, int64_t cluster_sector_num, int cluster_nb_sectors) "bs %p sector_num %"PRId64" nb_sectors %d cluster_sector_num %"PRId64" cluster_nb_sectors %d"
+
+# block/stream.c
+stream_one_iteration(void *s, int64_t sector_num, int nb_sectors, int is_allocated) "s %p sector_num %"PRId64" nb_sectors %d is_allocated %d"
+stream_start(void *bs, void *base, void *s, void *co, void *opaque) "bs %p base %p s %p co %p opaque %p"
+
+# blockdev.c
+qmp_block_job_cancel(void *job) "job %p"
+block_stream_cb(void *bs, void *job, int ret) "bs %p job %p ret %d"
+qmp_block_stream(void *bs, void *job) "bs %p job %p"
# hw/virtio-blk.c
virtio_blk_req_complete(void *req, int status) "req %p status %d"
virtio_blk_rw_complete(void *req, int ret) "req %p ret %d"
virtio_blk_handle_write(void *req, uint64_t sector, size_t nsectors) "req %p sector %"PRIu64" nsectors %zu"
+virtio_blk_handle_read(void *req, uint64_t sector, size_t nsectors) "req %p sector %"PRIu64" nsectors %zu"
# posix-aio-compat.c
paio_submit(void *acb, void *opaque, int64_t sector_num, int nb_sectors, int type) "acb %p opaque %p sector_num %"PRId64" nb_sectors %d type %d"
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-24 15:41:45 +0000