| 1 | /* |
| 2 | * Blockdev HMP commands |
| 3 | * |
| 4 | * Authors: |
| 5 | * Anthony Liguori <aliguori@us.ibm.com> |
| 6 | * |
| 7 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2. |
| 10 | * See the COPYING file in the top-level directory. |
| 11 | * Contributions after 2012-01-13 are licensed under the terms of the |
| 12 | * GNU GPL, version 2 or (at your option) any later version. |
| 13 | * |
| 14 | * This file incorporates work covered by the following copyright and |
| 15 | * permission notice: |
| 16 | * |
| 17 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 18 | * |
| 19 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 20 | * of this software and associated documentation files (the "Software"), to deal |
| 21 | * in the Software without restriction, including without limitation the rights |
| 22 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 23 | * copies of the Software, and to permit persons to whom the Software is |
| 24 | * furnished to do so, subject to the following conditions: |
| 25 | * |
| 26 | * The above copyright notice and this permission notice shall be included in |
| 27 | * all copies or substantial portions of the Software. |
| 28 | * |
| 29 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 30 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 31 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 32 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 33 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 34 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 35 | * THE SOFTWARE. |
| 36 | */ |
| 37 | |
| 38 | #include "qemu/osdep.h" |
| 39 | #include "hw/core/boards.h" |
| 40 | #include "system/block-backend.h" |
| 41 | #include "system/blockdev.h" |
| 42 | #include "qapi/qapi-commands-block.h" |
| 43 | #include "qapi/qapi-commands-block-export.h" |
| 44 | #include "qobject/qdict.h" |
| 45 | #include "qapi/error.h" |
| 46 | #include "qapi/qmp/qerror.h" |
| 47 | #include "qemu/config-file.h" |
| 48 | #include "qemu/option.h" |
| 49 | #include "qemu/sockets.h" |
| 50 | #include "qemu/cutils.h" |
| 51 | #include "qemu/error-report.h" |
| 52 | #include "system/system.h" |
| 53 | #include "monitor/monitor.h" |
| 54 | #include "monitor/hmp.h" |
| 55 | #include "block/nbd.h" |
| 56 | #include "block/qapi.h" |
| 57 | #include "block/block_int.h" |
| 58 | #include "block/block-hmp-cmds.h" |
| 59 | |
| 60 | static void hmp_drive_add_node(MonitorHMP *hmp, const char *optstr) |
| 61 | { |
| 62 | QemuOpts *opts; |
| 63 | QDict *qdict; |
| 64 | Error *err = NULL; |
| 65 | |
| 66 | opts = qemu_opts_parse_noisily(&qemu_drive_opts, optstr, false); |
| 67 | if (!opts) { |
| 68 | return; |
| 69 | } |
| 70 | |
| 71 | qdict = qemu_opts_to_qdict(opts, NULL); |
| 72 | |
| 73 | if (!qdict_get_try_str(qdict, "node-name")) { |
| 74 | qobject_unref(qdict); |
| 75 | error_setg(&err, "'node-name' needs to be specified"); |
| 76 | goto out; |
| 77 | } |
| 78 | |
| 79 | BlockDriverState *bs = bds_tree_init(qdict, &err); |
| 80 | if (!bs) { |
| 81 | goto out; |
| 82 | } |
| 83 | |
| 84 | bdrv_set_monitor_owned(bs); |
| 85 | out: |
| 86 | qemu_opts_del(opts); |
| 87 | hmp_handle_error(hmp, err); |
| 88 | } |
| 89 | |
| 90 | void hmp_drive_add(MonitorHMP *hmp, const QDict *qdict) |
| 91 | { |
| 92 | Error *err = NULL; |
| 93 | DriveInfo *dinfo; |
| 94 | QemuOpts *opts; |
| 95 | MachineClass *mc; |
| 96 | const char *optstr = qdict_get_str(qdict, "opts"); |
| 97 | bool node = qdict_get_try_bool(qdict, "node", false); |
| 98 | |
| 99 | if (node) { |
| 100 | hmp_drive_add_node(hmp, optstr); |
| 101 | return; |
| 102 | } |
| 103 | |
| 104 | opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), optstr, false); |
| 105 | if (!opts) |
| 106 | return; |
| 107 | |
| 108 | mc = MACHINE_GET_CLASS(current_machine); |
| 109 | dinfo = drive_new(opts, mc->block_default_type, &err); |
| 110 | if (err) { |
| 111 | qemu_opts_del(opts); |
| 112 | goto err; |
| 113 | } |
| 114 | |
| 115 | if (!dinfo) { |
| 116 | return; |
| 117 | } |
| 118 | |
| 119 | switch (dinfo->type) { |
| 120 | case IF_NONE: |
| 121 | monitor_hmp_printf(hmp, "OK\n"); |
| 122 | break; |
| 123 | default: |
| 124 | error_setg(&err, "Can't hot-add drive to type %d", dinfo->type); |
| 125 | goto err; |
| 126 | } |
| 127 | return; |
| 128 | |
| 129 | err: |
| 130 | if (dinfo) { |
| 131 | BlockBackend *blk = blk_by_legacy_dinfo(dinfo); |
| 132 | monitor_remove_blk(blk); |
| 133 | blk_unref(blk); |
| 134 | } |
| 135 | hmp_handle_error(hmp, err); |
| 136 | } |
| 137 | |
| 138 | void hmp_drive_del(MonitorHMP *hmp, const QDict *qdict) |
| 139 | { |
| 140 | const char *id = qdict_get_str(qdict, "id"); |
| 141 | BlockBackend *blk; |
| 142 | BlockDriverState *bs; |
| 143 | Error *err = NULL; |
| 144 | |
| 145 | GLOBAL_STATE_CODE(); |
| 146 | bdrv_graph_rdlock_main_loop(); |
| 147 | |
| 148 | bs = bdrv_find_node(id); |
| 149 | if (bs) { |
| 150 | qmp_blockdev_del(id, &err); |
| 151 | goto unlock; |
| 152 | } |
| 153 | |
| 154 | blk = blk_by_name(id); |
| 155 | if (!blk) { |
| 156 | error_setg(&err, "Device '%s' not found", id); |
| 157 | goto unlock; |
| 158 | } |
| 159 | |
| 160 | if (!blk_legacy_dinfo(blk)) { |
| 161 | error_setg(&err, "Deleting device added with blockdev-add" |
| 162 | " is not supported"); |
| 163 | goto unlock; |
| 164 | } |
| 165 | |
| 166 | bs = blk_bs(blk); |
| 167 | if (bs) { |
| 168 | if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_DRIVE_DEL, &err)) { |
| 169 | goto unlock; |
| 170 | } |
| 171 | |
| 172 | bdrv_graph_rdunlock_main_loop(); |
| 173 | blk_remove_bs(blk); |
| 174 | bdrv_graph_rdlock_main_loop(); |
| 175 | } |
| 176 | |
| 177 | /* Make the BlockBackend and the attached BlockDriverState anonymous */ |
| 178 | monitor_remove_blk(blk); |
| 179 | |
| 180 | /* |
| 181 | * If this BlockBackend has a device attached to it, its refcount will be |
| 182 | * decremented when the device is removed; otherwise we have to do so here. |
| 183 | */ |
| 184 | if (blk_get_attached_dev(blk)) { |
| 185 | /* Further I/O must not pause the guest */ |
| 186 | blk_set_on_error(blk, BLOCKDEV_ON_ERROR_REPORT, |
| 187 | BLOCKDEV_ON_ERROR_REPORT); |
| 188 | } else { |
| 189 | blk_unref(blk); |
| 190 | } |
| 191 | |
| 192 | unlock: |
| 193 | bdrv_graph_rdunlock_main_loop(); |
| 194 | hmp_handle_error(hmp, err); |
| 195 | } |
| 196 | |
| 197 | void hmp_commit(MonitorHMP *hmp, const QDict *qdict) |
| 198 | { |
| 199 | const char *device = qdict_get_str(qdict, "device"); |
| 200 | BlockBackend *blk; |
| 201 | int ret; |
| 202 | Error *err = NULL; |
| 203 | |
| 204 | GLOBAL_STATE_CODE(); |
| 205 | GRAPH_RDLOCK_GUARD_MAINLOOP(); |
| 206 | |
| 207 | if (!strcmp(device, "all")) { |
| 208 | ret = blk_commit_all(); |
| 209 | } else { |
| 210 | BlockDriverState *bs; |
| 211 | |
| 212 | blk = blk_by_name(device); |
| 213 | if (!blk) { |
| 214 | error_setg(&err, "Device '%s' not found", device); |
| 215 | goto end; |
| 216 | } |
| 217 | |
| 218 | bs = bdrv_skip_implicit_filters(blk_bs(blk)); |
| 219 | |
| 220 | if (!blk_is_available(blk)) { |
| 221 | error_setg(&err, "Device '%s' has no medium", device); |
| 222 | goto end; |
| 223 | } |
| 224 | |
| 225 | ret = bdrv_commit(bs); |
| 226 | } |
| 227 | if (ret < 0) { |
| 228 | error_setg(&err, "'commit' error for '%s': %s", device, strerror(-ret)); |
| 229 | } |
| 230 | |
| 231 | end: |
| 232 | hmp_handle_error(hmp, err); |
| 233 | } |
| 234 | |
| 235 | void hmp_drive_mirror(MonitorHMP *hmp, const QDict *qdict) |
| 236 | { |
| 237 | const char *filename = qdict_get_str(qdict, "target"); |
| 238 | const char *format = qdict_get_try_str(qdict, "format"); |
| 239 | bool reuse = qdict_get_try_bool(qdict, "reuse", false); |
| 240 | bool full = qdict_get_try_bool(qdict, "full", false); |
| 241 | Error *err = NULL; |
| 242 | DriveMirror mirror = { |
| 243 | .device = (char *)qdict_get_str(qdict, "device"), |
| 244 | .target = (char *)filename, |
| 245 | .format = (char *)format, |
| 246 | .sync = full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP, |
| 247 | .has_mode = true, |
| 248 | .mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS, |
| 249 | .unmap = true, |
| 250 | }; |
| 251 | |
| 252 | if (!filename) { |
| 253 | error_setg(&err, QERR_MISSING_PARAMETER, "target"); |
| 254 | goto end; |
| 255 | } |
| 256 | qmp_drive_mirror(&mirror, &err); |
| 257 | end: |
| 258 | hmp_handle_error(hmp, err); |
| 259 | } |
| 260 | |
| 261 | void hmp_drive_backup(MonitorHMP *hmp, const QDict *qdict) |
| 262 | { |
| 263 | const char *device = qdict_get_str(qdict, "device"); |
| 264 | const char *filename = qdict_get_str(qdict, "target"); |
| 265 | const char *format = qdict_get_try_str(qdict, "format"); |
| 266 | bool reuse = qdict_get_try_bool(qdict, "reuse", false); |
| 267 | bool full = qdict_get_try_bool(qdict, "full", false); |
| 268 | bool compress = qdict_get_try_bool(qdict, "compress", false); |
| 269 | Error *err = NULL; |
| 270 | DriveBackup backup = { |
| 271 | .device = (char *)device, |
| 272 | .target = (char *)filename, |
| 273 | .format = (char *)format, |
| 274 | .sync = full ? MIRROR_SYNC_MODE_FULL : MIRROR_SYNC_MODE_TOP, |
| 275 | .has_mode = true, |
| 276 | .mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS, |
| 277 | .has_compress = !!compress, |
| 278 | .compress = compress, |
| 279 | }; |
| 280 | |
| 281 | if (!filename) { |
| 282 | error_setg(&err, QERR_MISSING_PARAMETER, "target"); |
| 283 | goto end; |
| 284 | } |
| 285 | |
| 286 | qmp_drive_backup(&backup, &err); |
| 287 | end: |
| 288 | hmp_handle_error(hmp, err); |
| 289 | } |
| 290 | |
| 291 | void hmp_block_job_set_speed(MonitorHMP *hmp, const QDict *qdict) |
| 292 | { |
| 293 | Error *error = NULL; |
| 294 | const char *device = qdict_get_str(qdict, "device"); |
| 295 | int64_t value = qdict_get_int(qdict, "speed"); |
| 296 | |
| 297 | qmp_block_job_set_speed(device, value, &error); |
| 298 | |
| 299 | hmp_handle_error(hmp, error); |
| 300 | } |
| 301 | |
| 302 | void hmp_block_job_cancel(MonitorHMP *hmp, const QDict *qdict) |
| 303 | { |
| 304 | Error *error = NULL; |
| 305 | const char *device = qdict_get_str(qdict, "device"); |
| 306 | bool force = qdict_get_try_bool(qdict, "force", false); |
| 307 | |
| 308 | qmp_block_job_cancel(device, true, force, &error); |
| 309 | |
| 310 | hmp_handle_error(hmp, error); |
| 311 | } |
| 312 | |
| 313 | void hmp_block_job_pause(MonitorHMP *hmp, const QDict *qdict) |
| 314 | { |
| 315 | Error *error = NULL; |
| 316 | const char *device = qdict_get_str(qdict, "device"); |
| 317 | |
| 318 | qmp_block_job_pause(device, &error); |
| 319 | |
| 320 | hmp_handle_error(hmp, error); |
| 321 | } |
| 322 | |
| 323 | void hmp_block_job_resume(MonitorHMP *hmp, const QDict *qdict) |
| 324 | { |
| 325 | Error *error = NULL; |
| 326 | const char *device = qdict_get_str(qdict, "device"); |
| 327 | |
| 328 | qmp_block_job_resume(device, &error); |
| 329 | |
| 330 | hmp_handle_error(hmp, error); |
| 331 | } |
| 332 | |
| 333 | void hmp_block_job_complete(MonitorHMP *hmp, const QDict *qdict) |
| 334 | { |
| 335 | Error *error = NULL; |
| 336 | const char *device = qdict_get_str(qdict, "device"); |
| 337 | |
| 338 | qmp_block_job_complete(device, &error); |
| 339 | |
| 340 | hmp_handle_error(hmp, error); |
| 341 | } |
| 342 | |
| 343 | void hmp_snapshot_blkdev(MonitorHMP *hmp, const QDict *qdict) |
| 344 | { |
| 345 | const char *device = qdict_get_str(qdict, "device"); |
| 346 | const char *filename = qdict_get_str(qdict, "snapshot-file"); |
| 347 | const char *format = qdict_get_try_str(qdict, "format"); |
| 348 | bool reuse = qdict_get_try_bool(qdict, "reuse", false); |
| 349 | enum NewImageMode mode; |
| 350 | Error *err = NULL; |
| 351 | |
| 352 | mode = reuse ? NEW_IMAGE_MODE_EXISTING : NEW_IMAGE_MODE_ABSOLUTE_PATHS; |
| 353 | qmp_blockdev_snapshot_sync(device, NULL, filename, NULL, format, |
| 354 | true, mode, &err); |
| 355 | hmp_handle_error(hmp, err); |
| 356 | } |
| 357 | |
| 358 | void hmp_snapshot_blkdev_internal(MonitorHMP *hmp, const QDict *qdict) |
| 359 | { |
| 360 | const char *device = qdict_get_str(qdict, "device"); |
| 361 | const char *name = qdict_get_str(qdict, "name"); |
| 362 | Error *err = NULL; |
| 363 | |
| 364 | qmp_blockdev_snapshot_internal_sync(device, name, &err); |
| 365 | hmp_handle_error(hmp, err); |
| 366 | } |
| 367 | |
| 368 | void hmp_snapshot_delete_blkdev_internal(MonitorHMP *hmp, const QDict *qdict) |
| 369 | { |
| 370 | const char *device = qdict_get_str(qdict, "device"); |
| 371 | const char *name = qdict_get_str(qdict, "name"); |
| 372 | const char *id = qdict_get_try_str(qdict, "id"); |
| 373 | Error *err = NULL; |
| 374 | |
| 375 | qmp_blockdev_snapshot_delete_internal_sync(device, id, name, &err); |
| 376 | hmp_handle_error(hmp, err); |
| 377 | } |
| 378 | |
| 379 | void hmp_nbd_server_start(MonitorHMP *hmp, const QDict *qdict) |
| 380 | { |
| 381 | const char *uri = qdict_get_str(qdict, "uri"); |
| 382 | bool writable = qdict_get_try_bool(qdict, "writable", false); |
| 383 | bool all = qdict_get_try_bool(qdict, "all", false); |
| 384 | Error *local_err = NULL; |
| 385 | BlockInfoList *block_list, *info; |
| 386 | SocketAddress *addr; |
| 387 | NbdServerAddOptions export; |
| 388 | |
| 389 | if (writable && !all) { |
| 390 | error_setg(&local_err, "-w only valid together with -a"); |
| 391 | goto exit; |
| 392 | } |
| 393 | |
| 394 | /* First check if the address is valid and start the server. */ |
| 395 | addr = socket_parse(uri, &local_err); |
| 396 | if (local_err != NULL) { |
| 397 | goto exit; |
| 398 | } |
| 399 | |
| 400 | nbd_server_start(addr, NBD_DEFAULT_HANDSHAKE_MAX_SECS, NULL, NULL, |
| 401 | NBD_DEFAULT_MAX_CONNECTIONS, &local_err); |
| 402 | qapi_free_SocketAddress(addr); |
| 403 | if (local_err != NULL) { |
| 404 | goto exit; |
| 405 | } |
| 406 | |
| 407 | if (!all) { |
| 408 | return; |
| 409 | } |
| 410 | |
| 411 | /* Then try adding all block devices. If one fails, close all and |
| 412 | * exit. |
| 413 | */ |
| 414 | block_list = qmp_query_block(true, true, NULL); |
| 415 | |
| 416 | for (info = block_list; info; info = info->next) { |
| 417 | if (!info->value->inserted) { |
| 418 | continue; |
| 419 | } |
| 420 | |
| 421 | export = (NbdServerAddOptions) { |
| 422 | .device = info->value->device, |
| 423 | .has_writable = true, |
| 424 | .writable = writable, |
| 425 | }; |
| 426 | |
| 427 | qmp_nbd_server_add(&export, &local_err); |
| 428 | |
| 429 | if (local_err != NULL) { |
| 430 | qmp_nbd_server_stop(NULL); |
| 431 | break; |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | qapi_free_BlockInfoList(block_list); |
| 436 | |
| 437 | exit: |
| 438 | hmp_handle_error(hmp, local_err); |
| 439 | } |
| 440 | |
| 441 | void hmp_nbd_server_add(MonitorHMP *hmp, const QDict *qdict) |
| 442 | { |
| 443 | const char *device = qdict_get_str(qdict, "device"); |
| 444 | const char *name = qdict_get_try_str(qdict, "name"); |
| 445 | bool writable = qdict_get_try_bool(qdict, "writable", false); |
| 446 | Error *local_err = NULL; |
| 447 | |
| 448 | NbdServerAddOptions export = { |
| 449 | .device = (char *) device, |
| 450 | .name = (char *) name, |
| 451 | .has_writable = true, |
| 452 | .writable = writable, |
| 453 | }; |
| 454 | |
| 455 | qmp_nbd_server_add(&export, &local_err); |
| 456 | hmp_handle_error(hmp, local_err); |
| 457 | } |
| 458 | |
| 459 | void hmp_nbd_server_remove(MonitorHMP *hmp, const QDict *qdict) |
| 460 | { |
| 461 | const char *name = qdict_get_str(qdict, "name"); |
| 462 | bool force = qdict_get_try_bool(qdict, "force", false); |
| 463 | Error *err = NULL; |
| 464 | |
| 465 | /* Rely on BLOCK_EXPORT_REMOVE_MODE_SAFE being the default */ |
| 466 | qmp_nbd_server_remove(name, force, BLOCK_EXPORT_REMOVE_MODE_HARD, &err); |
| 467 | hmp_handle_error(hmp, err); |
| 468 | } |
| 469 | |
| 470 | void hmp_nbd_server_stop(MonitorHMP *hmp, const QDict *qdict) |
| 471 | { |
| 472 | Error *err = NULL; |
| 473 | |
| 474 | qmp_nbd_server_stop(&err); |
| 475 | hmp_handle_error(hmp, err); |
| 476 | } |
| 477 | |
| 478 | void coroutine_fn hmp_block_resize(MonitorHMP *hmp, const QDict *qdict) |
| 479 | { |
| 480 | const char *device = qdict_get_str(qdict, "device"); |
| 481 | int64_t size = qdict_get_int(qdict, "size"); |
| 482 | Error *err = NULL; |
| 483 | |
| 484 | qmp_block_resize(device, NULL, size, &err); |
| 485 | hmp_handle_error(hmp, err); |
| 486 | } |
| 487 | |
| 488 | void hmp_block_stream(MonitorHMP *hmp, const QDict *qdict) |
| 489 | { |
| 490 | Error *error = NULL; |
| 491 | const char *device = qdict_get_str(qdict, "device"); |
| 492 | const char *base = qdict_get_try_str(qdict, "base"); |
| 493 | int64_t speed = qdict_get_try_int(qdict, "speed", 0); |
| 494 | |
| 495 | qmp_block_stream(device, device, base, NULL, NULL, false, false, NULL, |
| 496 | qdict_haskey(qdict, "speed"), speed, |
| 497 | true, BLOCKDEV_ON_ERROR_REPORT, NULL, |
| 498 | false, false, false, false, &error); |
| 499 | |
| 500 | hmp_handle_error(hmp, error); |
| 501 | } |
| 502 | |
| 503 | void hmp_block_set_io_throttle(MonitorHMP *hmp, const QDict *qdict) |
| 504 | { |
| 505 | Error *err = NULL; |
| 506 | char *device = (char *) qdict_get_str(qdict, "device"); |
| 507 | BlockIOThrottle throttle = { |
| 508 | .bps = qdict_get_int(qdict, "bps"), |
| 509 | .bps_rd = qdict_get_int(qdict, "bps_rd"), |
| 510 | .bps_wr = qdict_get_int(qdict, "bps_wr"), |
| 511 | .iops = qdict_get_int(qdict, "iops"), |
| 512 | .iops_rd = qdict_get_int(qdict, "iops_rd"), |
| 513 | .iops_wr = qdict_get_int(qdict, "iops_wr"), |
| 514 | }; |
| 515 | |
| 516 | /* |
| 517 | * qmp_block_set_io_throttle has separate parameters for the |
| 518 | * (deprecated) block device name and the qdev ID but the HMP |
| 519 | * version has only one, so we must decide which one to pass. |
| 520 | */ |
| 521 | if (blk_by_name(device)) { |
| 522 | throttle.device = device; |
| 523 | } else { |
| 524 | throttle.id = device; |
| 525 | } |
| 526 | |
| 527 | qmp_block_set_io_throttle(&throttle, &err); |
| 528 | hmp_handle_error(hmp, err); |
| 529 | } |
| 530 | |
| 531 | void hmp_eject(MonitorHMP *hmp, const QDict *qdict) |
| 532 | { |
| 533 | bool force = qdict_get_try_bool(qdict, "force", false); |
| 534 | const char *device = qdict_get_str(qdict, "device"); |
| 535 | Error *err = NULL; |
| 536 | |
| 537 | qmp_eject(device, NULL, true, force, &err); |
| 538 | hmp_handle_error(hmp, err); |
| 539 | } |
| 540 | |
| 541 | void hmp_qemu_io(MonitorHMP *hmp, const QDict *qdict) |
| 542 | { |
| 543 | bool qdev = qdict_get_try_bool(qdict, "qdev", false); |
| 544 | const char *device = qdict_get_str(qdict, "device"); |
| 545 | const char *command = qdict_get_str(qdict, "command"); |
| 546 | Error *err = NULL; |
| 547 | |
| 548 | qmp_x_qemu_io(qdev ? NULL : device, |
| 549 | qdev ? device : NULL, |
| 550 | command, &err); |
| 551 | hmp_handle_error(hmp, err); |
| 552 | } |
| 553 | |
| 554 | static void print_block_info(MonitorHMP *hmp, BlockInfo *info, |
| 555 | BlockDeviceInfo *inserted, bool verbose) |
| 556 | { |
| 557 | Monitor *mon = MONITOR(hmp); |
| 558 | ImageInfo *image_info; |
| 559 | |
| 560 | assert(!info || !info->inserted || info->inserted == inserted); |
| 561 | |
| 562 | if (info && *info->device) { |
| 563 | monitor_puts(mon, info->device); |
| 564 | if (inserted && inserted->node_name) { |
| 565 | monitor_hmp_printf(hmp, " (%s)", inserted->node_name); |
| 566 | } |
| 567 | } else { |
| 568 | assert(info || inserted); |
| 569 | monitor_puts(mon, |
| 570 | inserted && inserted->node_name ? inserted->node_name |
| 571 | : info && info->qdev ? info->qdev |
| 572 | : "<anonymous>"); |
| 573 | } |
| 574 | |
| 575 | if (inserted) { |
| 576 | monitor_hmp_printf(hmp, ": %s (%s%s%s%s)\n", |
| 577 | inserted->file, |
| 578 | inserted->drv, |
| 579 | inserted->ro ? ", read-only" : "", |
| 580 | inserted->encrypted ? ", encrypted" : "", |
| 581 | inserted->active ? "" : ", inactive"); |
| 582 | } else { |
| 583 | monitor_hmp_printf(hmp, ": [not inserted]\n"); |
| 584 | } |
| 585 | |
| 586 | if (info) { |
| 587 | if (info->qdev) { |
| 588 | monitor_hmp_printf(hmp, " Attached to: %s\n", info->qdev); |
| 589 | } |
| 590 | if (info->has_io_status && info->io_status != BLOCK_DEVICE_IO_STATUS_OK) { |
| 591 | monitor_hmp_printf(hmp, " I/O status: %s\n", |
| 592 | BlockDeviceIoStatus_str(info->io_status)); |
| 593 | } |
| 594 | |
| 595 | if (info->removable) { |
| 596 | monitor_hmp_printf(hmp, " Removable device: %slocked, tray %s\n", |
| 597 | info->locked ? "" : "not ", |
| 598 | info->tray_open ? "open" : "closed"); |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | |
| 603 | if (!inserted) { |
| 604 | return; |
| 605 | } |
| 606 | |
| 607 | monitor_hmp_printf(hmp, " Cache mode: %s%s%s\n", |
| 608 | inserted->cache->writeback ? "writeback" : "writethrough", |
| 609 | inserted->cache->direct ? ", direct" : "", |
| 610 | inserted->cache->no_flush ? ", ignore flushes" : ""); |
| 611 | |
| 612 | if (inserted->backing_file) { |
| 613 | monitor_hmp_printf(hmp, |
| 614 | " Backing file: %s " |
| 615 | "(chain depth: %" PRId64 ")\n", |
| 616 | inserted->backing_file, |
| 617 | inserted->backing_file_depth); |
| 618 | } |
| 619 | |
| 620 | if (inserted->detect_zeroes != BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF) { |
| 621 | monitor_hmp_printf(hmp, " Detect zeroes: %s\n", |
| 622 | BlockdevDetectZeroesOptions_str(inserted->detect_zeroes)); |
| 623 | } |
| 624 | |
| 625 | if (inserted->bps || inserted->bps_rd || inserted->bps_wr || |
| 626 | inserted->iops || inserted->iops_rd || inserted->iops_wr) |
| 627 | { |
| 628 | monitor_hmp_printf(hmp, " I/O throttling: bps=%" PRId64 |
| 629 | " bps_rd=%" PRId64 " bps_wr=%" PRId64 |
| 630 | " bps_max=%" PRId64 |
| 631 | " bps_rd_max=%" PRId64 |
| 632 | " bps_wr_max=%" PRId64 |
| 633 | " iops=%" PRId64 " iops_rd=%" PRId64 |
| 634 | " iops_wr=%" PRId64 |
| 635 | " iops_max=%" PRId64 |
| 636 | " iops_rd_max=%" PRId64 |
| 637 | " iops_wr_max=%" PRId64 |
| 638 | " iops_size=%" PRId64 |
| 639 | " group=%s\n", |
| 640 | inserted->bps, |
| 641 | inserted->bps_rd, |
| 642 | inserted->bps_wr, |
| 643 | inserted->bps_max, |
| 644 | inserted->bps_rd_max, |
| 645 | inserted->bps_wr_max, |
| 646 | inserted->iops, |
| 647 | inserted->iops_rd, |
| 648 | inserted->iops_wr, |
| 649 | inserted->iops_max, |
| 650 | inserted->iops_rd_max, |
| 651 | inserted->iops_wr_max, |
| 652 | inserted->iops_size, |
| 653 | inserted->group); |
| 654 | } |
| 655 | |
| 656 | if (verbose) { |
| 657 | monitor_hmp_printf(hmp, "\nImages:\n"); |
| 658 | image_info = inserted->image; |
| 659 | while (1) { |
| 660 | bdrv_node_info_dump(qapi_ImageInfo_base(image_info), 0, false); |
| 661 | if (image_info->backing_image) { |
| 662 | image_info = image_info->backing_image; |
| 663 | } else { |
| 664 | break; |
| 665 | } |
| 666 | } |
| 667 | } |
| 668 | } |
| 669 | |
| 670 | void hmp_info_block(MonitorHMP *hmp, const QDict *qdict) |
| 671 | { |
| 672 | BlockInfoList *block_list, *info; |
| 673 | BlockDeviceInfoList *blockdev_list, *blockdev; |
| 674 | const char *device = qdict_get_try_str(qdict, "device"); |
| 675 | bool verbose = qdict_get_try_bool(qdict, "verbose", false); |
| 676 | bool nodes = qdict_get_try_bool(qdict, "nodes", false); |
| 677 | bool printed = false; |
| 678 | |
| 679 | /* Print BlockBackend information */ |
| 680 | if (!nodes) { |
| 681 | block_list = qmp_query_block(false, false, NULL); |
| 682 | } else { |
| 683 | block_list = NULL; |
| 684 | } |
| 685 | |
| 686 | for (info = block_list; info; info = info->next) { |
| 687 | if (device && strcmp(device, info->value->device)) { |
| 688 | continue; |
| 689 | } |
| 690 | |
| 691 | if (info != block_list) { |
| 692 | monitor_hmp_printf(hmp, "\n"); |
| 693 | } |
| 694 | |
| 695 | print_block_info(hmp, info->value, info->value->inserted, |
| 696 | verbose); |
| 697 | printed = true; |
| 698 | } |
| 699 | |
| 700 | qapi_free_BlockInfoList(block_list); |
| 701 | |
| 702 | if ((!device && !nodes) || printed) { |
| 703 | return; |
| 704 | } |
| 705 | |
| 706 | /* Print node information */ |
| 707 | blockdev_list = qmp_query_named_block_nodes(false, false, NULL); |
| 708 | for (blockdev = blockdev_list; blockdev; blockdev = blockdev->next) { |
| 709 | assert(blockdev->value->node_name); |
| 710 | if (device && strcmp(device, blockdev->value->node_name)) { |
| 711 | continue; |
| 712 | } |
| 713 | |
| 714 | if (blockdev != blockdev_list) { |
| 715 | monitor_hmp_printf(hmp, "\n"); |
| 716 | } |
| 717 | |
| 718 | print_block_info(hmp, NULL, blockdev->value, verbose); |
| 719 | } |
| 720 | qapi_free_BlockDeviceInfoList(blockdev_list); |
| 721 | } |
| 722 | |
| 723 | void hmp_info_blockstats(MonitorHMP *hmp, const QDict *qdict) |
| 724 | { |
| 725 | BlockStatsList *stats_list, *stats; |
| 726 | |
| 727 | stats_list = qmp_query_blockstats(false, false, NULL); |
| 728 | |
| 729 | for (stats = stats_list; stats; stats = stats->next) { |
| 730 | if (!stats->value->device) { |
| 731 | continue; |
| 732 | } |
| 733 | |
| 734 | monitor_hmp_printf(hmp, "%s%s: idle_time_ns=%" PRId64 "\n", |
| 735 | stats != stats_list ? "\n" : "", |
| 736 | stats->value->device, |
| 737 | stats->value->stats->idle_time_ns); |
| 738 | monitor_hmp_printf(hmp, " %24s %16s %24s %10s\n", "bytes", |
| 739 | "operations", "total_time_ns", "merged"); |
| 740 | monitor_hmp_printf(hmp, "Read: %24" PRId64 " %16" PRId64 " %24" PRId64 |
| 741 | " %10" PRId64 "\n", |
| 742 | stats->value->stats->rd_bytes, |
| 743 | stats->value->stats->rd_operations, |
| 744 | stats->value->stats->rd_total_time_ns, |
| 745 | stats->value->stats->rd_merged); |
| 746 | monitor_hmp_printf(hmp, "Write: %24" PRId64 " %16" PRId64 " %24" PRId64 |
| 747 | " %10" PRId64 "\n", |
| 748 | stats->value->stats->wr_bytes, |
| 749 | stats->value->stats->wr_operations, |
| 750 | stats->value->stats->wr_total_time_ns, |
| 751 | stats->value->stats->wr_merged); |
| 752 | monitor_hmp_printf(hmp, "Flush: %24s %16" PRId64 " %24" PRId64 "\n", |
| 753 | "", |
| 754 | stats->value->stats->flush_operations, |
| 755 | stats->value->stats->flush_total_time_ns); |
| 756 | } |
| 757 | |
| 758 | qapi_free_BlockStatsList(stats_list); |
| 759 | } |
| 760 | |
| 761 | void hmp_info_block_jobs(MonitorHMP *hmp, const QDict *qdict) |
| 762 | { |
| 763 | BlockJobInfoList *list; |
| 764 | |
| 765 | list = qmp_query_block_jobs(&error_abort); |
| 766 | |
| 767 | if (!list) { |
| 768 | monitor_hmp_printf(hmp, "No active jobs\n"); |
| 769 | return; |
| 770 | } |
| 771 | |
| 772 | while (list) { |
| 773 | if (list->value->type == JOB_TYPE_STREAM) { |
| 774 | monitor_hmp_printf(hmp, "Streaming device %s: Completed %" PRId64 |
| 775 | " of %" PRId64 " bytes, speed limit %" PRId64 |
| 776 | " bytes/s\n", |
| 777 | list->value->device, |
| 778 | list->value->offset, |
| 779 | list->value->len, |
| 780 | list->value->speed); |
| 781 | } else { |
| 782 | monitor_hmp_printf(hmp, "Type %s, device %s: Completed %" PRId64 |
| 783 | " of %" PRId64 " bytes, speed limit %" PRId64 |
| 784 | " bytes/s\n", |
| 785 | JobType_str(list->value->type), |
| 786 | list->value->device, |
| 787 | list->value->offset, |
| 788 | list->value->len, |
| 789 | list->value->speed); |
| 790 | } |
| 791 | list = list->next; |
| 792 | } |
| 793 | |
| 794 | qapi_free_BlockJobInfoList(list); |
| 795 | } |
| 796 | |
| 797 | void hmp_info_snapshots(MonitorHMP *hmp, const QDict *qdict) |
| 798 | { |
| 799 | BlockDriverState *bs, *bs1; |
| 800 | BdrvNextIterator it1; |
| 801 | QEMUSnapshotInfo *sn_tab, *sn; |
| 802 | bool no_snapshot = true; |
| 803 | int nb_sns, i; |
| 804 | int total; |
| 805 | int *global_snapshots; |
| 806 | |
| 807 | typedef struct SnapshotEntry { |
| 808 | QEMUSnapshotInfo sn; |
| 809 | QTAILQ_ENTRY(SnapshotEntry) next; |
| 810 | } SnapshotEntry; |
| 811 | |
| 812 | typedef struct ImageEntry { |
| 813 | const char *imagename; |
| 814 | QTAILQ_ENTRY(ImageEntry) next; |
| 815 | QTAILQ_HEAD(, SnapshotEntry) snapshots; |
| 816 | } ImageEntry; |
| 817 | |
| 818 | QTAILQ_HEAD(, ImageEntry) image_list = |
| 819 | QTAILQ_HEAD_INITIALIZER(image_list); |
| 820 | |
| 821 | ImageEntry *image_entry, *next_ie; |
| 822 | SnapshotEntry *snapshot_entry; |
| 823 | Error *err = NULL; |
| 824 | |
| 825 | GRAPH_RDLOCK_GUARD_MAINLOOP(); |
| 826 | |
| 827 | bs = bdrv_all_find_vmstate_bs(NULL, false, NULL, &err); |
| 828 | if (!bs) { |
| 829 | hmp_handle_error(hmp, err); |
| 830 | return; |
| 831 | } |
| 832 | |
| 833 | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
| 834 | |
| 835 | if (nb_sns < 0) { |
| 836 | monitor_hmp_printf(hmp, "bdrv_snapshot_list: error %d\n", nb_sns); |
| 837 | return; |
| 838 | } |
| 839 | |
| 840 | for (bs1 = bdrv_first(&it1); bs1; bs1 = bdrv_next(&it1)) { |
| 841 | int bs1_nb_sns = 0; |
| 842 | ImageEntry *ie; |
| 843 | SnapshotEntry *se; |
| 844 | |
| 845 | if (bdrv_can_snapshot(bs1)) { |
| 846 | sn = NULL; |
| 847 | bs1_nb_sns = bdrv_snapshot_list(bs1, &sn); |
| 848 | if (bs1_nb_sns > 0) { |
| 849 | no_snapshot = false; |
| 850 | ie = g_new0(ImageEntry, 1); |
| 851 | ie->imagename = bdrv_get_device_name(bs1); |
| 852 | QTAILQ_INIT(&ie->snapshots); |
| 853 | QTAILQ_INSERT_TAIL(&image_list, ie, next); |
| 854 | for (i = 0; i < bs1_nb_sns; i++) { |
| 855 | se = g_new0(SnapshotEntry, 1); |
| 856 | se->sn = sn[i]; |
| 857 | QTAILQ_INSERT_TAIL(&ie->snapshots, se, next); |
| 858 | } |
| 859 | } |
| 860 | g_free(sn); |
| 861 | } |
| 862 | } |
| 863 | |
| 864 | if (no_snapshot) { |
| 865 | monitor_hmp_printf(hmp, "There is no snapshot available.\n"); |
| 866 | return; |
| 867 | } |
| 868 | |
| 869 | global_snapshots = g_new0(int, nb_sns); |
| 870 | total = 0; |
| 871 | for (i = 0; i < nb_sns; i++) { |
| 872 | SnapshotEntry *next_sn; |
| 873 | if (bdrv_all_has_snapshot(sn_tab[i].name, false, NULL, NULL) == 1) { |
| 874 | global_snapshots[total] = i; |
| 875 | total++; |
| 876 | QTAILQ_FOREACH(image_entry, &image_list, next) { |
| 877 | QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots, |
| 878 | next, next_sn) { |
| 879 | if (!strcmp(sn_tab[i].name, snapshot_entry->sn.name)) { |
| 880 | QTAILQ_REMOVE(&image_entry->snapshots, snapshot_entry, |
| 881 | next); |
| 882 | g_free(snapshot_entry); |
| 883 | } |
| 884 | } |
| 885 | } |
| 886 | } |
| 887 | } |
| 888 | monitor_hmp_printf(hmp, "List of snapshots present on all disks:\n"); |
| 889 | |
| 890 | if (total > 0) { |
| 891 | bdrv_snapshot_dump(NULL); |
| 892 | monitor_hmp_printf(hmp, "\n"); |
| 893 | for (i = 0; i < total; i++) { |
| 894 | sn = &sn_tab[global_snapshots[i]]; |
| 895 | /* |
| 896 | * The ID is not guaranteed to be the same on all images, so |
| 897 | * overwrite it. |
| 898 | */ |
| 899 | pstrcpy(sn->id_str, sizeof(sn->id_str), "--"); |
| 900 | bdrv_snapshot_dump(sn); |
| 901 | monitor_hmp_printf(hmp, "\n"); |
| 902 | } |
| 903 | } else { |
| 904 | monitor_hmp_printf(hmp, "None\n"); |
| 905 | } |
| 906 | |
| 907 | QTAILQ_FOREACH(image_entry, &image_list, next) { |
| 908 | if (QTAILQ_EMPTY(&image_entry->snapshots)) { |
| 909 | continue; |
| 910 | } |
| 911 | monitor_hmp_printf(hmp, |
| 912 | "\nList of partial (non-loadable) snapshots on '%s':\n", |
| 913 | image_entry->imagename); |
| 914 | bdrv_snapshot_dump(NULL); |
| 915 | monitor_hmp_printf(hmp, "\n"); |
| 916 | QTAILQ_FOREACH(snapshot_entry, &image_entry->snapshots, next) { |
| 917 | bdrv_snapshot_dump(&snapshot_entry->sn); |
| 918 | monitor_hmp_printf(hmp, "\n"); |
| 919 | } |
| 920 | } |
| 921 | |
| 922 | QTAILQ_FOREACH_SAFE(image_entry, &image_list, next, next_ie) { |
| 923 | SnapshotEntry *next_sn; |
| 924 | QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots, next, |
| 925 | next_sn) { |
| 926 | g_free(snapshot_entry); |
| 927 | } |
| 928 | g_free(image_entry); |
| 929 | } |
| 930 | g_free(sn_tab); |
| 931 | g_free(global_snapshots); |
| 932 | } |
| 933 | |
| 934 | void hmp_change_medium(MonitorHMP *hmp, const char *device, const char *target, |
| 935 | const char *arg, const char *read_only, bool force, |
| 936 | Error **errp) |
| 937 | { |
| 938 | ERRP_GUARD(); |
| 939 | BlockdevChangeReadOnlyMode read_only_mode = 0; |
| 940 | |
| 941 | if (read_only) { |
| 942 | read_only_mode = |
| 943 | qapi_enum_parse(&BlockdevChangeReadOnlyMode_lookup, |
| 944 | read_only, |
| 945 | BLOCKDEV_CHANGE_READ_ONLY_MODE_RETAIN, errp); |
| 946 | if (*errp) { |
| 947 | return; |
| 948 | } |
| 949 | } |
| 950 | |
| 951 | qmp_blockdev_change_medium(device, NULL, target, arg, true, force, |
| 952 | !!read_only, read_only_mode, errp); |
| 953 | } |