| /* |
| * Blockdev HMP commands |
| * |
| * Authors: |
| * Anthony Liguori <aliguori@us.ibm.com> |
| * |
| * Copyright (c) 2003-2008 Fabrice Bellard |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2. |
| * See the COPYING file in the top-level directory. |
| * Contributions after 2012-01-13 are licensed under the terms of the |
| * GNU GPL, version 2 or (at your option) any later version. |
| * |
| * This file incorporates work covered by the following copyright and |
| * permission notice: |
| * |
| * Copyright (c) 2003-2008 Fabrice Bellard |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "hw/boards.h" |
| #include "sysemu/block-backend.h" |
| #include "sysemu/blockdev.h" |
| #include "qapi/qapi-commands-block.h" |
| #include "qapi/qapi-commands-block-export.h" |
| #include "qapi/qmp/qdict.h" |
| #include "qapi/error.h" |
| #include "qapi/qmp/qerror.h" |
| #include "qemu/config-file.h" |
| #include "qemu/option.h" |
| #include "qemu/sockets.h" |
| #include "qemu/cutils.h" |
| #include "sysemu/sysemu.h" |
| #include "monitor/monitor.h" |
| #include "monitor/hmp.h" |
| #include "block/nbd.h" |
| #include "block/qapi.h" |
| #include "block/block_int.h" |
| #include "block/block-hmp-cmds.h" |
| #include "qemu-io.h" |
| |
| static void hmp_drive_add_node(Monitor *mon, const char *optstr) |
| { |
| QemuOpts *opts; |
| QDict *qdict; |
| Error *local_err = NULL; |
| |
| opts = qemu_opts_parse_noisily(&qemu_drive_opts, optstr, false); |
| if (!opts) { |
| return; |
| } |
| |
| qdict = qemu_opts_to_qdict(opts, NULL); |
| |
| if (!qdict_get_try_str(qdict, "node-name")) { |
| qobject_unref(qdict); |
| error_report("'node-name' needs to be specified"); |
| goto out; |
| } |
| |
| BlockDriverState *bs = bds_tree_init(qdict, &local_err); |
| if (!bs) { |
| error_report_err(local_err); |
| goto out; |
| } |
| |
| bdrv_set_monitor_owned(bs); |
| out: |
| qemu_opts_del(opts); |
| } |
| |
| void hmp_drive_add(Monitor *mon, const QDict *qdict) |
| { |
| Error *err = NULL; |
| DriveInfo *dinfo; |
| QemuOpts *opts; |
| MachineClass *mc; |
| const char *optstr = qdict_get_str(qdict, "opts"); |
| bool node = qdict_get_try_bool(qdict, "node", false); |
| |
| if (node) { |
| hmp_drive_add_node(mon, optstr); |
| return; |
| } |
| |
| opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), optstr, false); |
| if (!opts) |
| return; |
| |
| mc = MACHINE_GET_CLASS(current_machine); |
| dinfo = drive_new(opts, mc->block_default_type, &err); |
| if (err) { |
| error_report_err(err); |
| qemu_opts_del(opts); |
| goto err; |
| } |
| |
| if (!dinfo) { |
| return; |
| } |
| |
| switch (dinfo->type) { |
| case IF_NONE: |
| monitor_printf(mon, "OK\n"); |
| break; |
| default: |
| monitor_printf(mon, "Can't hot-add drive to type %d\n", dinfo->type); |
| goto err; |
| } |
| return; |
| |
| err: |
| if (dinfo) { |
| BlockBackend *blk = blk_by_legacy_dinfo(dinfo); |
| monitor_remove_blk(blk); |
| blk_unref(blk); |
| } |
| } |
| |
| void hmp_drive_del(Monitor *mon, const QDict *qdict) |
| { |
| const char *id = qdict_get_str(qdict, "id"); |
| BlockBackend *blk; |
| BlockDriverState *bs; |
| AioContext *aio_context; |
| Error *local_err = NULL; |
| |
| bs = bdrv_find_node(id); |
| if (bs) { |
| qmp_blockdev_del(id, &local_err); |
| if (local_err) { |
| error_report_err(local_err); |
| } |
| return; |
| } |
| |
| blk = blk_by_name(id); |
| if (!blk) { |
| error_report("Device '%s' not found", id); |
| return; |
| } |
| |
| if (!blk_legacy_dinfo(blk)) { |
| error_report("Deleting device added with blockdev-add" |
| " is not supported"); |
| return; |
| } |
| |
| aio_context = blk_get_aio_context(blk); |
| aio_context_acquire(aio_context); |
| |
| bs = blk_bs(blk); |
| if (bs) { |
| if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_DRIVE_DEL, &local_err)) { |
| error_report_err(local_err); |
| aio_context_release(aio_context); |
| return; |
| } |
| |
| blk_remove_bs(blk); |
| } |
| |
| /* Make the BlockBackend and the attached BlockDriverState anonymous */ |
| monitor_remove_blk(blk); |
| |
| /* |
| * If this BlockBackend has a device attached to it, its refcount will be |
| * decremented when the device is removed; otherwise we have to do so here. |
| */ |
| if (blk_get_attached_dev(blk)) { |
| /* Further I/O must not pause the guest */ |
| blk_set_on_error(blk, BLOCKDEV_ON_ERROR_REPORT, |
| BLOCKDEV_ON_ERROR_REPORT); |
| } else { |
| blk_unref(blk); |
| } |
| |
| aio_context_release(aio_context); |
| } |
| |
| void hmp_commit(Monitor *mon, const QDict *qdict) |
| { |
| const char *device = qdict_get_str(qdict, "device"); |
| BlockBackend *blk; |
| int ret; |
| |
| if (!strcmp(device, "all")) { |
| ret = blk_commit_all(); |
| } else { |
| BlockDriverState *bs; |
| AioContext *aio_context; |
| |
| blk = blk_by_name(device); |
| if (!blk) { |
| error_report("Device '%s' not found", device); |
| return; |
| } |
| if (!blk_is_available(blk)) { |
| error_report("Device '%s' has no medium", device); |
| return; |
| } |
| |
| bs = bdrv_skip_implicit_filters(blk_bs(blk)); |
| aio_context = bdrv_get_aio_context(bs); |
| aio_context_acquire(aio_context); |
| |
| ret = bdrv_commit(bs); |
| |
| aio_context_release(aio_context); |
| } |
| if (ret < 0) { |
| error_report("'commit' error for '%s': %s", device, strerror(-ret)); |
| } |
| } |
| |
| void hmp_drive_mirror(Monitor *mon, const QDict *qdict) |
| { |
| const char *filename = qdict_get_str(qdict, "target"); |
| const char *format = qdict_get_try_str(qdict, "format"); |
| bool reuse = qdict_get_try_bool(qdict, "reuse", false); |
| bool full = qdict_get_try_bool(qdict, "full", false); |
| Error *err = NULL; |
| DriveMirror mirror = { |
| .device = (char *)qdict_get_str(qdict, "device"), |
| .target = (char *)filename, |
| .has_format = !!format, |
| .format = (char *)format, |
| .sync = full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP, |
| .has_mode = true, |
| .mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS, |
| .unmap = true, |
| }; |
| |
| if (!filename) { |
| error_setg(&err, QERR_MISSING_PARAMETER, "target"); |
| goto end; |
| } |
| qmp_drive_mirror(&mirror, &err); |
| end: |
| hmp_handle_error(mon, err); |
| } |
| |
| void hmp_drive_backup(Monitor *mon, const QDict *qdict) |
| { |
| const char *device = qdict_get_str(qdict, "device"); |
| const char *filename = qdict_get_str(qdict, "target"); |
| const char *format = qdict_get_try_str(qdict, "format"); |
| bool reuse = qdict_get_try_bool(qdict, "reuse", false); |
| bool full = qdict_get_try_bool(qdict, "full", false); |
| bool compress = qdict_get_try_bool(qdict, "compress", false); |
| Error *err = NULL; |
| DriveBackup backup = { |
| .device = (char *)device, |
| .target = (char *)filename, |
| .has_format = !!format, |
| .format = (char *)format, |
| .sync = full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP, |
| .has_mode = true, |
| .mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS, |
| .has_compress = !!compress, |
| .compress = compress, |
| }; |
| |
| if (!filename) { |
| error_setg(&err, QERR_MISSING_PARAMETER, "target"); |
| goto end; |
| } |
| |
| qmp_drive_backup(&backup, &err); |
| end: |
| hmp_handle_error(mon, err); |
| } |
| |
| 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, "speed"); |
| |
| 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"); |
| bool force = qdict_get_try_bool(qdict, "force", false); |
| |
| qmp_block_job_cancel(device, true, force, &error); |
| |
| hmp_handle_error(mon, error); |
| } |
| |
| void hmp_block_job_pause(Monitor *mon, const QDict *qdict) |
| { |
| Error *error = NULL; |
| const char *device = qdict_get_str(qdict, "device"); |
| |
| qmp_block_job_pause(device, &error); |
| |
| hmp_handle_error(mon, error); |
| } |
| |
| void hmp_block_job_resume(Monitor *mon, const QDict *qdict) |
| { |
| Error *error = NULL; |
| const char *device = qdict_get_str(qdict, "device"); |
| |
| qmp_block_job_resume(device, &error); |
| |
| hmp_handle_error(mon, error); |
| } |
| |
| void hmp_block_job_complete(Monitor *mon, const QDict *qdict) |
| { |
| Error *error = NULL; |
| const char *device = qdict_get_str(qdict, "device"); |
| |
| qmp_block_job_complete(device, &error); |
| |
| hmp_handle_error(mon, error); |
| } |
| |
| void hmp_snapshot_blkdev(Monitor *mon, const QDict *qdict) |
| { |
| const char *device = qdict_get_str(qdict, "device"); |
| const char *filename = qdict_get_try_str(qdict, "snapshot-file"); |
| const char *format = qdict_get_try_str(qdict, "format"); |
| bool reuse = qdict_get_try_bool(qdict, "reuse", false); |
| enum NewImageMode mode; |
| Error *err = NULL; |
| |
| if (!filename) { |
| /* |
| * In the future, if 'snapshot-file' is not specified, the snapshot |
| * will be taken internally. Today it's actually required. |
| */ |
| error_setg(&err, QERR_MISSING_PARAMETER, "snapshot-file"); |
| goto end; |
| } |
| |
| mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS; |
| qmp_blockdev_snapshot_sync(true, device, false, NULL, |
| filename, false, NULL, |
| !!format, format, |
| true, mode, &err); |
| end: |
| hmp_handle_error(mon, err); |
| } |
| |
| void hmp_snapshot_blkdev_internal(Monitor *mon, const QDict *qdict) |
| { |
| const char *device = qdict_get_str(qdict, "device"); |
| const char *name = qdict_get_str(qdict, "name"); |
| Error *err = NULL; |
| |
| qmp_blockdev_snapshot_internal_sync(device, name, &err); |
| hmp_handle_error(mon, err); |
| } |
| |
| void hmp_snapshot_delete_blkdev_internal(Monitor *mon, const QDict *qdict) |
| { |
| const char *device = qdict_get_str(qdict, "device"); |
| const char *name = qdict_get_str(qdict, "name"); |
| const char *id = qdict_get_try_str(qdict, "id"); |
| Error *err = NULL; |
| |
| qmp_blockdev_snapshot_delete_internal_sync(device, !!id, id, |
| true, name, &err); |
| hmp_handle_error(mon, err); |
| } |
| |
| void hmp_nbd_server_start(Monitor *mon, const QDict *qdict) |
| { |
| const char *uri = qdict_get_str(qdict, "uri"); |
| bool writable = qdict_get_try_bool(qdict, "writable", false); |
| bool all = qdict_get_try_bool(qdict, "all", false); |
| Error *local_err = NULL; |
| BlockInfoList *block_list, *info; |
| SocketAddress *addr; |
| NbdServerAddOptions export; |
| |
| if (writable && !all) { |
| error_setg(&local_err, "-w only valid together with -a"); |
| goto exit; |
| } |
| |
| /* First check if the address is valid and start the server. */ |
| addr = socket_parse(uri, &local_err); |
| if (local_err != NULL) { |
| goto exit; |
| } |
| |
| nbd_server_start(addr, NULL, NULL, 0, &local_err); |
| qapi_free_SocketAddress(addr); |
| if (local_err != NULL) { |
| goto exit; |
| } |
| |
| if (!all) { |
| return; |
| } |
| |
| /* Then try adding all block devices. If one fails, close all and |
| * exit. |
| */ |
| block_list = qmp_query_block(NULL); |
| |
| for (info = block_list; info; info = info->next) { |
| if (!info->value->has_inserted) { |
| continue; |
| } |
| |
| export = (NbdServerAddOptions) { |
| .device = info->value->device, |
| .has_writable = true, |
| .writable = writable, |
| }; |
| |
| qmp_nbd_server_add(&export, &local_err); |
| |
| if (local_err != NULL) { |
| qmp_nbd_server_stop(NULL); |
| break; |
| } |
| } |
| |
| qapi_free_BlockInfoList(block_list); |
| |
| exit: |
| hmp_handle_error(mon, local_err); |
| } |
| |
| void hmp_nbd_server_add(Monitor *mon, const QDict *qdict) |
| { |
| const char *device = qdict_get_str(qdict, "device"); |
| const char *name = qdict_get_try_str(qdict, "name"); |
| bool writable = qdict_get_try_bool(qdict, "writable", false); |
| Error *local_err = NULL; |
| |
| NbdServerAddOptions export = { |
| .device = (char *) device, |
| .has_name = !!name, |
| .name = (char *) name, |
| .has_writable = true, |
| .writable = writable, |
| }; |
| |
| qmp_nbd_server_add(&export, &local_err); |
| hmp_handle_error(mon, local_err); |
| } |
| |
| void hmp_nbd_server_remove(Monitor *mon, const QDict *qdict) |
| { |
| const char *name = qdict_get_str(qdict, "name"); |
| bool force = qdict_get_try_bool(qdict, "force", false); |
| Error *err = NULL; |
| |
| /* Rely on BLOCK_EXPORT_REMOVE_MODE_SAFE being the default */ |
| qmp_nbd_server_remove(name, force, BLOCK_EXPORT_REMOVE_MODE_HARD, &err); |
| hmp_handle_error(mon, err); |
| } |
| |
| void hmp_nbd_server_stop(Monitor *mon, const QDict *qdict) |
| { |
| Error *err = NULL; |
| |
| qmp_nbd_server_stop(&err); |
| hmp_handle_error(mon, err); |
| } |
| |
| void hmp_block_resize(Monitor *mon, const QDict *qdict) |
| { |
| const char *device = qdict_get_str(qdict, "device"); |
| int64_t size = qdict_get_int(qdict, "size"); |
| Error *err = NULL; |
| |
| qmp_block_resize(true, device, false, NULL, size, &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"); |
| int64_t speed = qdict_get_try_int(qdict, "speed", 0); |
| |
| qmp_block_stream(true, device, device, base != NULL, base, false, NULL, |
| false, NULL, false, NULL, |
| qdict_haskey(qdict, "speed"), speed, true, |
| BLOCKDEV_ON_ERROR_REPORT, false, NULL, false, false, false, |
| false, &error); |
| |
| hmp_handle_error(mon, error); |
| } |
| |
| void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict) |
| { |
| Error *err = NULL; |
| char *device = (char *) qdict_get_str(qdict, "device"); |
| BlockIOThrottle throttle = { |
| .bps = qdict_get_int(qdict, "bps"), |
| .bps_rd = qdict_get_int(qdict, "bps_rd"), |
| .bps_wr = qdict_get_int(qdict, "bps_wr"), |
| .iops = qdict_get_int(qdict, "iops"), |
| .iops_rd = qdict_get_int(qdict, "iops_rd"), |
| .iops_wr = qdict_get_int(qdict, "iops_wr"), |
| }; |
| |
| /* |
| * qmp_block_set_io_throttle has separate parameters for the |
| * (deprecated) block device name and the qdev ID but the HMP |
| * version has only one, so we must decide which one to pass. |
| */ |
| if (blk_by_name(device)) { |
| throttle.has_device = true; |
| throttle.device = device; |
| } else { |
| throttle.has_id = true; |
| throttle.id = device; |
| } |
| |
| qmp_block_set_io_throttle(&throttle, &err); |
| hmp_handle_error(mon, err); |
| } |
| |
| void hmp_eject(Monitor *mon, const QDict *qdict) |
| { |
| bool force = qdict_get_try_bool(qdict, "force", false); |
| const char *device = qdict_get_str(qdict, "device"); |
| Error *err = NULL; |
| |
| qmp_eject(true, device, false, NULL, true, force, &err); |
| hmp_handle_error(mon, err); |
| } |
| |
| void hmp_qemu_io(Monitor *mon, const QDict *qdict) |
| { |
| BlockBackend *blk = NULL; |
| BlockDriverState *bs = NULL; |
| BlockBackend *local_blk = NULL; |
| AioContext *ctx = NULL; |
| bool qdev = qdict_get_try_bool(qdict, "qdev", false); |
| const char *device = qdict_get_str(qdict, "device"); |
| const char *command = qdict_get_str(qdict, "command"); |
| Error *err = NULL; |
| int ret; |
| |
| if (qdev) { |
| blk = blk_by_qdev_id(device, &err); |
| if (!blk) { |
| goto fail; |
| } |
| } else { |
| blk = blk_by_name(device); |
| if (!blk) { |
| bs = bdrv_lookup_bs(NULL, device, &err); |
| if (!bs) { |
| goto fail; |
| } |
| } |
| } |
| |
| ctx = blk ? blk_get_aio_context(blk) : bdrv_get_aio_context(bs); |
| aio_context_acquire(ctx); |
| |
| if (bs) { |
| blk = local_blk = blk_new(bdrv_get_aio_context(bs), 0, BLK_PERM_ALL); |
| ret = blk_insert_bs(blk, bs, &err); |
| if (ret < 0) { |
| goto fail; |
| } |
| } |
| |
| /* |
| * Notably absent: Proper permission management. This is sad, but it seems |
| * almost impossible to achieve without changing the semantics and thereby |
| * limiting the use cases of the qemu-io HMP command. |
| * |
| * In an ideal world we would unconditionally create a new BlockBackend for |
| * qemuio_command(), but we have commands like 'reopen' and want them to |
| * take effect on the exact BlockBackend whose name the user passed instead |
| * of just on a temporary copy of it. |
| * |
| * Another problem is that deleting the temporary BlockBackend involves |
| * draining all requests on it first, but some qemu-iotests cases want to |
| * issue multiple aio_read/write requests and expect them to complete in |
| * the background while the monitor has already returned. |
| * |
| * This is also what prevents us from saving the original permissions and |
| * restoring them later: We can't revoke permissions until all requests |
| * have completed, and we don't know when that is nor can we really let |
| * anything else run before we have revoken them to avoid race conditions. |
| * |
| * What happens now is that command() in qemu-io-cmds.c can extend the |
| * permissions if necessary for the qemu-io command. And they simply stay |
| * extended, possibly resulting in a read-only guest device keeping write |
| * permissions. Ugly, but it appears to be the lesser evil. |
| */ |
| qemuio_command(blk, command); |
| |
| fail: |
| blk_unref(local_blk); |
| |
| if (ctx) { |
| aio_context_release(ctx); |
| } |
| |
| hmp_handle_error(mon, err); |
| } |
| |
| static void print_block_info(Monitor *mon, BlockInfo *info, |
| BlockDeviceInfo *inserted, bool verbose) |
| { |
| ImageInfo *image_info; |
| |
| assert(!info || !info->has_inserted || info->inserted == inserted); |
| |
| if (info && *info->device) { |
| monitor_printf(mon, "%s", info->device); |
| if (inserted && inserted->has_node_name) { |
| monitor_printf(mon, " (%s)", inserted->node_name); |
| } |
| } else { |
| assert(info || inserted); |
| monitor_printf(mon, "%s", |
| inserted && inserted->has_node_name ? inserted->node_name |
| : info && info->has_qdev ? info->qdev |
| : "<anonymous>"); |
| } |
| |
| if (inserted) { |
| monitor_printf(mon, ": %s (%s%s%s)\n", |
| inserted->file, |
| inserted->drv, |
| inserted->ro ? ", read-only" : "", |
| inserted->encrypted ? ", encrypted" : ""); |
| } else { |
| monitor_printf(mon, ": [not inserted]\n"); |
| } |
| |
| if (info) { |
| if (info->has_qdev) { |
| monitor_printf(mon, " Attached to: %s\n", info->qdev); |
| } |
| if (info->has_io_status && info->io_status != BLOCK_DEVICE_IO_STATUS_OK) { |
| monitor_printf(mon, " I/O status: %s\n", |
| BlockDeviceIoStatus_str(info->io_status)); |
| } |
| |
| if (info->removable) { |
| monitor_printf(mon, " Removable device: %slocked, tray %s\n", |
| info->locked ? "" : "not ", |
| info->tray_open ? "open" : "closed"); |
| } |
| } |
| |
| |
| if (!inserted) { |
| return; |
| } |
| |
| monitor_printf(mon, " Cache mode: %s%s%s\n", |
| inserted->cache->writeback ? "writeback" : "writethrough", |
| inserted->cache->direct ? ", direct" : "", |
| inserted->cache->no_flush ? ", ignore flushes" : ""); |
| |
| if (inserted->has_backing_file) { |
| monitor_printf(mon, |
| " Backing file: %s " |
| "(chain depth: %" PRId64 ")\n", |
| inserted->backing_file, |
| inserted->backing_file_depth); |
| } |
| |
| if (inserted->detect_zeroes != BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF) { |
| monitor_printf(mon, " Detect zeroes: %s\n", |
| BlockdevDetectZeroesOptions_str(inserted->detect_zeroes)); |
| } |
| |
| if (inserted->bps || inserted->bps_rd || inserted->bps_wr || |
| inserted->iops || inserted->iops_rd || inserted->iops_wr) |
| { |
| monitor_printf(mon, " I/O throttling: bps=%" PRId64 |
| " bps_rd=%" PRId64 " bps_wr=%" PRId64 |
| " bps_max=%" PRId64 |
| " bps_rd_max=%" PRId64 |
| " bps_wr_max=%" PRId64 |
| " iops=%" PRId64 " iops_rd=%" PRId64 |
| " iops_wr=%" PRId64 |
| " iops_max=%" PRId64 |
| " iops_rd_max=%" PRId64 |
| " iops_wr_max=%" PRId64 |
| " iops_size=%" PRId64 |
| " group=%s\n", |
| inserted->bps, |
| inserted->bps_rd, |
| inserted->bps_wr, |
| inserted->bps_max, |
| inserted->bps_rd_max, |
| inserted->bps_wr_max, |
| inserted->iops, |
| inserted->iops_rd, |
| inserted->iops_wr, |
| inserted->iops_max, |
| inserted->iops_rd_max, |
| inserted->iops_wr_max, |
| inserted->iops_size, |
| inserted->group); |
| } |
| |
| if (verbose) { |
| monitor_printf(mon, "\nImages:\n"); |
| image_info = inserted->image; |
| while (1) { |
| bdrv_image_info_dump(image_info); |
| if (image_info->has_backing_image) { |
| image_info = image_info->backing_image; |
| } else { |
| break; |
| } |
| } |
| } |
| } |
| |
| void hmp_info_block(Monitor *mon, const QDict *qdict) |
| { |
| BlockInfoList *block_list, *info; |
| BlockDeviceInfoList *blockdev_list, *blockdev; |
| const char *device = qdict_get_try_str(qdict, "device"); |
| bool verbose = qdict_get_try_bool(qdict, "verbose", false); |
| bool nodes = qdict_get_try_bool(qdict, "nodes", false); |
| bool printed = false; |
| |
| /* Print BlockBackend information */ |
| if (!nodes) { |
| block_list = qmp_query_block(NULL); |
| } else { |
| block_list = NULL; |
| } |
| |
| for (info = block_list; info; info = info->next) { |
| if (device && strcmp(device, info->value->device)) { |
| continue; |
| } |
| |
| if (info != block_list) { |
| monitor_printf(mon, "\n"); |
| } |
| |
| print_block_info(mon, info->value, info->value->has_inserted |
| ? info->value->inserted : NULL, |
| verbose); |
| printed = true; |
| } |
| |
| qapi_free_BlockInfoList(block_list); |
| |
| if ((!device && !nodes) || printed) { |
| return; |
| } |
| |
| /* Print node information */ |
| blockdev_list = qmp_query_named_block_nodes(false, false, NULL); |
| for (blockdev = blockdev_list; blockdev; blockdev = blockdev->next) { |
| assert(blockdev->value->has_node_name); |
| if (device && strcmp(device, blockdev->value->node_name)) { |
| continue; |
| } |
| |
| if (blockdev != blockdev_list) { |
| monitor_printf(mon, "\n"); |
| } |
| |
| print_block_info(mon, NULL, blockdev->value, verbose); |
| } |
| qapi_free_BlockDeviceInfoList(blockdev_list); |
| } |
| |
| void hmp_info_blockstats(Monitor *mon, const QDict *qdict) |
| { |
| BlockStatsList *stats_list, *stats; |
| |
| stats_list = qmp_query_blockstats(false, false, NULL); |
| |
| for (stats = stats_list; stats; stats = stats->next) { |
| if (!stats->value->has_device) { |
| continue; |
| } |
| |
| monitor_printf(mon, "%s:", stats->value->device); |
| monitor_printf(mon, " rd_bytes=%" PRId64 |
| " wr_bytes=%" PRId64 |
| " rd_operations=%" PRId64 |
| " wr_operations=%" PRId64 |
| " flush_operations=%" PRId64 |
| " wr_total_time_ns=%" PRId64 |
| " rd_total_time_ns=%" PRId64 |
| " flush_total_time_ns=%" PRId64 |
| " rd_merged=%" PRId64 |
| " wr_merged=%" PRId64 |
| " idle_time_ns=%" PRId64 |
| "\n", |
| stats->value->stats->rd_bytes, |
| stats->value->stats->wr_bytes, |
| stats->value->stats->rd_operations, |
| stats->value->stats->wr_operations, |
| stats->value->stats->flush_operations, |
| stats->value->stats->wr_total_time_ns, |
| stats->value->stats->rd_total_time_ns, |
| stats->value->stats->flush_total_time_ns, |
| stats->value->stats->rd_merged, |
| stats->value->stats->wr_merged, |
| stats->value->stats->idle_time_ns); |
| } |
| |
| qapi_free_BlockStatsList(stats_list); |
| } |
| |
| void hmp_info_block_jobs(Monitor *mon, const QDict *qdict) |
| { |
| BlockJobInfoList *list; |
| |
| list = qmp_query_block_jobs(&error_abort); |
| |
| 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; |
| } |
| |
| qapi_free_BlockJobInfoList(list); |
| } |
| |
| void hmp_info_snapshots(Monitor *mon, const QDict *qdict) |
| { |
| BlockDriverState *bs, *bs1; |
| BdrvNextIterator it1; |
| QEMUSnapshotInfo *sn_tab, *sn; |
| bool no_snapshot = true; |
| int nb_sns, i; |
| int total; |
| int *global_snapshots; |
| AioContext *aio_context; |
| |
| typedef struct SnapshotEntry { |
| QEMUSnapshotInfo sn; |
| QTAILQ_ENTRY(SnapshotEntry) next; |
| } SnapshotEntry; |
| |
| typedef struct ImageEntry { |
| const char *imagename; |
| QTAILQ_ENTRY(ImageEntry) next; |
| QTAILQ_HEAD(, SnapshotEntry) snapshots; |
| } ImageEntry; |
| |
| QTAILQ_HEAD(, ImageEntry) image_list = |
| QTAILQ_HEAD_INITIALIZER(image_list); |
| |
| ImageEntry *image_entry, *next_ie; |
| SnapshotEntry *snapshot_entry; |
| Error *err = NULL; |
| |
| bs = bdrv_all_find_vmstate_bs(NULL, false, NULL, &err); |
| if (!bs) { |
| error_report_err(err); |
| return; |
| } |
| aio_context = bdrv_get_aio_context(bs); |
| |
| aio_context_acquire(aio_context); |
| nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
| aio_context_release(aio_context); |
| |
| if (nb_sns < 0) { |
| monitor_printf(mon, "bdrv_snapshot_list: error %d\n", nb_sns); |
| return; |
| } |
| |
| for (bs1 = bdrv_first(&it1); bs1; bs1 = bdrv_next(&it1)) { |
| int bs1_nb_sns = 0; |
| ImageEntry *ie; |
| SnapshotEntry *se; |
| AioContext *ctx = bdrv_get_aio_context(bs1); |
| |
| aio_context_acquire(ctx); |
| if (bdrv_can_snapshot(bs1)) { |
| sn = NULL; |
| bs1_nb_sns = bdrv_snapshot_list(bs1, &sn); |
| if (bs1_nb_sns > 0) { |
| no_snapshot = false; |
| ie = g_new0(ImageEntry, 1); |
| ie->imagename = bdrv_get_device_name(bs1); |
| QTAILQ_INIT(&ie->snapshots); |
| QTAILQ_INSERT_TAIL(&image_list, ie, next); |
| for (i = 0; i < bs1_nb_sns; i++) { |
| se = g_new0(SnapshotEntry, 1); |
| se->sn = sn[i]; |
| QTAILQ_INSERT_TAIL(&ie->snapshots, se, next); |
| } |
| } |
| g_free(sn); |
| } |
| aio_context_release(ctx); |
| } |
| |
| if (no_snapshot) { |
| monitor_printf(mon, "There is no snapshot available.\n"); |
| return; |
| } |
| |
| global_snapshots = g_new0(int, nb_sns); |
| total = 0; |
| for (i = 0; i < nb_sns; i++) { |
| SnapshotEntry *next_sn; |
| if (bdrv_all_has_snapshot(sn_tab[i].name, false, NULL, NULL) == 1) { |
| global_snapshots[total] = i; |
| total++; |
| QTAILQ_FOREACH(image_entry, &image_list, next) { |
| QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots, |
| next, next_sn) { |
| if (!strcmp(sn_tab[i].name, snapshot_entry->sn.name)) { |
| QTAILQ_REMOVE(&image_entry->snapshots, snapshot_entry, |
| next); |
| g_free(snapshot_entry); |
| } |
| } |
| } |
| } |
| } |
| monitor_printf(mon, "List of snapshots present on all disks:\n"); |
| |
| if (total > 0) { |
| bdrv_snapshot_dump(NULL); |
| monitor_printf(mon, "\n"); |
| for (i = 0; i < total; i++) { |
| sn = &sn_tab[global_snapshots[i]]; |
| /* |
| * The ID is not guaranteed to be the same on all images, so |
| * overwrite it. |
| */ |
| pstrcpy(sn->id_str, sizeof(sn->id_str), "--"); |
| bdrv_snapshot_dump(sn); |
| monitor_printf(mon, "\n"); |
| } |
| } else { |
| monitor_printf(mon, "None\n"); |
| } |
| |
| QTAILQ_FOREACH(image_entry, &image_list, next) { |
| if (QTAILQ_EMPTY(&image_entry->snapshots)) { |
| continue; |
| } |
| monitor_printf(mon, |
| "\nList of partial (non-loadable) snapshots on '%s':\n", |
| image_entry->imagename); |
| bdrv_snapshot_dump(NULL); |
| monitor_printf(mon, "\n"); |
| QTAILQ_FOREACH(snapshot_entry, &image_entry->snapshots, next) { |
| bdrv_snapshot_dump(&snapshot_entry->sn); |
| monitor_printf(mon, "\n"); |
| } |
| } |
| |
| QTAILQ_FOREACH_SAFE(image_entry, &image_list, next, next_ie) { |
| SnapshotEntry *next_sn; |
| QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots, next, |
| next_sn) { |
| g_free(snapshot_entry); |
| } |
| g_free(image_entry); |
| } |
| g_free(sn_tab); |
| g_free(global_snapshots); |
| } |
