2 * Block layer code related to image creation
4 * Copyright (c) 2018 Kevin Wolf <kwolf@redhat.com>
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "block/block_int.h"
28 #include "qemu/main-loop.h"
29 #include "qapi/qapi-commands-block-core.h"
30 #include "qapi/qapi-visit-block-core.h"
31 #include "qapi/clone-visitor.h"
32 #include "qapi/error.h"
34 typedef struct BlockdevCreateJob {
37 BlockdevCreateOptions *opts;
40 static int coroutine_fn blockdev_create_run(Job *job, Error **errp)
42 BlockdevCreateJob *s = container_of(job, BlockdevCreateJob, common);
47 job_progress_set_remaining(&s->common, 1);
48 ret = s->drv->bdrv_co_create(s->opts, errp);
49 job_progress_update(&s->common, 1);
51 qapi_free_BlockdevCreateOptions(s->opts);
56 static const JobDriver blockdev_create_job_driver = {
57 .instance_size = sizeof(BlockdevCreateJob),
58 .job_type = JOB_TYPE_CREATE,
59 .run = blockdev_create_run,
62 void qmp_blockdev_create(const char *job_id, BlockdevCreateOptions *options,
66 const char *fmt = BlockdevDriver_str(options->driver);
67 BlockDriver *drv = bdrv_find_format(fmt);
70 error_setg(errp, "Block driver '%s' not found or not supported", fmt);
74 /* If the driver is in the schema, we know that it exists. But it may not
76 if (bdrv_uses_whitelist() && !bdrv_is_whitelisted(drv, false)) {
77 error_setg(errp, "Driver is not whitelisted");
81 /* Error out if the driver doesn't support .bdrv_co_create */
82 if (!drv->bdrv_co_create) {
83 error_setg(errp, "Driver does not support blockdev-create");
87 /* Create the block job */
88 /* TODO Running in the main context. Block drivers need to error out or add
89 * locking when they use a BDS in a different AioContext. */
90 s = job_create(job_id, &blockdev_create_job_driver, NULL,
91 qemu_get_aio_context(), JOB_DEFAULT | JOB_MANUAL_DISMISS,
98 s->opts = QAPI_CLONE(BlockdevCreateOptions, options),
100 job_start(&s->common);