static void external_snapshot_prepare(BlkTransactionStates *common,
Error **errp)
{
- BlockDriver *proto_drv;
BlockDriver *drv;
int flags, ret;
Error *local_err = NULL;
flags = states->old_bs->open_flags;
- proto_drv = bdrv_find_protocol(new_image_file);
- if (!proto_drv) {
- error_set(errp, QERR_INVALID_BLOCK_FORMAT, format);
- return;
- }
-
/* create new image w/backing file */
if (mode != NEW_IMAGE_MODE_EXISTING) {
bdrv_img_create(new_image_file, format,
ret = bdrv_open(states->new_bs, new_image_file, NULL,
flags | BDRV_O_NO_BACKING, drv);
if (ret != 0) {
- error_set(errp, QERR_OPEN_FILE_FAILED, new_image_file);
+ error_setg_file_open(errp, -ret, new_image_file);
}
}
int bdrv_flags, BlockDriver *drv,
const char *password, Error **errp)
{
- if (bdrv_open(bs, filename, NULL, bdrv_flags, drv) < 0) {
- error_set(errp, QERR_OPEN_FILE_FAILED, filename);
+ int ret;
+
+ ret = bdrv_open(bs, filename, NULL, bdrv_flags, drv);
+ if (ret < 0) {
+ error_setg_file_open(errp, -ret, filename);
return;
}
drive_get_ref(drive_get_by_blockdev(bs));
}
+void qmp_drive_backup(const char *device, const char *target,
+ bool has_format, const char *format,
+ bool has_mode, enum NewImageMode mode,
+ bool has_speed, int64_t speed,
+ bool has_on_source_error, BlockdevOnError on_source_error,
+ bool has_on_target_error, BlockdevOnError on_target_error,
+ Error **errp)
+{
+ BlockDriverState *bs;
+ BlockDriverState *target_bs;
+ BlockDriver *drv = NULL;
+ Error *local_err = NULL;
+ int flags;
+ int64_t size;
+ int ret;
+
+ if (!has_speed) {
+ speed = 0;
+ }
+ if (!has_on_source_error) {
+ on_source_error = BLOCKDEV_ON_ERROR_REPORT;
+ }
+ if (!has_on_target_error) {
+ on_target_error = BLOCKDEV_ON_ERROR_REPORT;
+ }
+ if (!has_mode) {
+ mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
+ }
+
+ bs = bdrv_find(device);
+ if (!bs) {
+ error_set(errp, QERR_DEVICE_NOT_FOUND, device);
+ return;
+ }
+
+ if (!bdrv_is_inserted(bs)) {
+ error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device);
+ return;
+ }
+
+ if (!has_format) {
+ format = mode == NEW_IMAGE_MODE_EXISTING ? NULL : bs->drv->format_name;
+ }
+ if (format) {
+ drv = bdrv_find_format(format);
+ if (!drv) {
+ error_set(errp, QERR_INVALID_BLOCK_FORMAT, format);
+ return;
+ }
+ }
+
+ if (bdrv_in_use(bs)) {
+ error_set(errp, QERR_DEVICE_IN_USE, device);
+ return;
+ }
+
+ flags = bs->open_flags | BDRV_O_RDWR;
+
+ size = bdrv_getlength(bs);
+ if (size < 0) {
+ error_setg_errno(errp, -size, "bdrv_getlength failed");
+ return;
+ }
+
+ if (mode != NEW_IMAGE_MODE_EXISTING) {
+ assert(format && drv);
+ bdrv_img_create(target, format,
+ NULL, NULL, NULL, size, flags, &local_err, false);
+ }
+
+ if (error_is_set(&local_err)) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ target_bs = bdrv_new("");
+ ret = bdrv_open(target_bs, target, NULL, flags, drv);
+ if (ret < 0) {
+ bdrv_delete(target_bs);
+ error_setg_file_open(errp, -ret, target);
+ return;
+ }
+
+ backup_start(bs, target_bs, speed, on_source_error, on_target_error,
+ block_job_cb, bs, &local_err);
+ if (local_err != NULL) {
+ bdrv_delete(target_bs);
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ /* Grab a reference so hotplug does not delete the BlockDriverState from
+ * underneath us.
+ */
+ drive_get_ref(drive_get_by_blockdev(bs));
+}
+
#define DEFAULT_MIRROR_BUF_SIZE (10 << 20)
void qmp_drive_mirror(const char *device, const char *target,
{
BlockDriverState *bs;
BlockDriverState *source, *target_bs;
- BlockDriver *proto_drv;
BlockDriver *drv = NULL;
Error *local_err = NULL;
int flags;
- uint64_t size;
+ int64_t size;
int ret;
if (!has_speed) {
sync = MIRROR_SYNC_MODE_FULL;
}
- proto_drv = bdrv_find_protocol(target);
- if (!proto_drv) {
- error_set(errp, QERR_INVALID_BLOCK_FORMAT, format);
+ size = bdrv_getlength(bs);
+ if (size < 0) {
+ error_setg_errno(errp, -size, "bdrv_getlength failed");
return;
}
- bdrv_get_geometry(bs, &size);
- size *= 512;
if (sync == MIRROR_SYNC_MODE_FULL && mode != NEW_IMAGE_MODE_EXISTING) {
/* create new image w/o backing file */
assert(format && drv);
*/
target_bs = bdrv_new("");
ret = bdrv_open(target_bs, target, NULL, flags | BDRV_O_NO_BACKING, drv);
-
if (ret < 0) {
bdrv_delete(target_bs);
- error_set(errp, QERR_OPEN_FILE_FAILED, target);
+ error_setg_file_open(errp, -ret, target);
return;
}
.name = "drive",
.head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
.desc = {
- {
- .name = "bus",
- .type = QEMU_OPT_NUMBER,
- .help = "bus number",
- },{
- .name = "unit",
- .type = QEMU_OPT_NUMBER,
- .help = "unit number (i.e. lun for scsi)",
- },{
- .name = "if",
- .type = QEMU_OPT_STRING,
- .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
- },{
- .name = "index",
- .type = QEMU_OPT_NUMBER,
- .help = "index number",
- },{
- .name = "cyls",
- .type = QEMU_OPT_NUMBER,
- .help = "number of cylinders (ide disk geometry)",
- },{
- .name = "heads",
- .type = QEMU_OPT_NUMBER,
- .help = "number of heads (ide disk geometry)",
- },{
- .name = "secs",
- .type = QEMU_OPT_NUMBER,
- .help = "number of sectors (ide disk geometry)",
- },{
- .name = "trans",
- .type = QEMU_OPT_STRING,
- .help = "chs translation (auto, lba. none)",
- },{
- .name = "media",
- .type = QEMU_OPT_STRING,
- .help = "media type (disk, cdrom)",
- },{
- .name = "snapshot",
- .type = QEMU_OPT_BOOL,
- .help = "enable/disable snapshot mode",
- },{
- .name = "file",
- .type = QEMU_OPT_STRING,
- .help = "disk image",
- },{
- .name = "discard",
- .type = QEMU_OPT_STRING,
- .help = "discard operation (ignore/off, unmap/on)",
- },{
- .name = "cache",
- .type = QEMU_OPT_STRING,
- .help = "host cache usage (none, writeback, writethrough, "
- "directsync, unsafe)",
- },{
- .name = "aio",
- .type = QEMU_OPT_STRING,
- .help = "host AIO implementation (threads, native)",
- },{
- .name = "format",
- .type = QEMU_OPT_STRING,
- .help = "disk format (raw, qcow2, ...)",
- },{
- .name = "serial",
- .type = QEMU_OPT_STRING,
- .help = "disk serial number",
- },{
- .name = "rerror",
- .type = QEMU_OPT_STRING,
- .help = "read error action",
- },{
- .name = "werror",
- .type = QEMU_OPT_STRING,
- .help = "write error action",
- },{
- .name = "addr",
- .type = QEMU_OPT_STRING,
- .help = "pci address (virtio only)",
- },{
- .name = "readonly",
- .type = QEMU_OPT_BOOL,
- .help = "open drive file as read-only",
- },{
- .name = "iops",
- .type = QEMU_OPT_NUMBER,
- .help = "limit total I/O operations per second",
- },{
- .name = "iops_rd",
- .type = QEMU_OPT_NUMBER,
- .help = "limit read operations per second",
- },{
- .name = "iops_wr",
- .type = QEMU_OPT_NUMBER,
- .help = "limit write operations per second",
- },{
- .name = "bps",
- .type = QEMU_OPT_NUMBER,
- .help = "limit total bytes per second",
- },{
- .name = "bps_rd",
- .type = QEMU_OPT_NUMBER,
- .help = "limit read bytes per second",
- },{
- .name = "bps_wr",
- .type = QEMU_OPT_NUMBER,
- .help = "limit write bytes per second",
- },{
- .name = "copy-on-read",
- .type = QEMU_OPT_BOOL,
- .help = "copy read data from backing file into image file",
- },{
- .name = "boot",
- .type = QEMU_OPT_BOOL,
- .help = "(deprecated, ignored)",
- },
+ /*
+ * no elements => accept any params
+ * validation will happen later
+ */
{ /* end of list */ }
},
};
projects / qemu.git / blobdiff