1 /* 2 * HMP commands related to migration 3 * 4 * Copyright IBM, Corp. 2011 5 * 6 * Authors: 7 * Anthony Liguori <aliguori@us.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2. See 10 * the COPYING file in the top-level directory. 11 * 12 * Contributions after 2012-01-13 are licensed under the terms of the 13 * GNU GPL, version 2 or (at your option) any later version. 14 */ 15 16 #include "qemu/osdep.h" 17 #include "block/qapi.h" 18 #include "migration/snapshot.h" 19 #include "monitor/hmp.h" 20 #include "monitor/monitor.h" 21 #include "qapi/error.h" 22 #include "qapi/qapi-commands-migration.h" 23 #include "qapi/qapi-visit-migration.h" 24 #include "qapi/qmp/qdict.h" 25 #include "qapi/string-input-visitor.h" 26 #include "qapi/string-output-visitor.h" 27 #include "qemu/cutils.h" 28 #include "qemu/error-report.h" 29 #include "qemu/sockets.h" 30 #include "sysemu/runstate.h" 31 #include "ui/qemu-spice.h" 32 #include "sysemu/sysemu.h" 33 #include "options.h" 34 #include "migration.h" 35 36 static void migration_global_dump(Monitor *mon) 37 { 38 MigrationState *ms = migrate_get_current(); 39 40 monitor_printf(mon, "globals:\n"); 41 monitor_printf(mon, "store-global-state: %s\n", 42 ms->store_global_state ? "on" : "off"); 43 monitor_printf(mon, "only-migratable: %s\n", 44 only_migratable ? "on" : "off"); 45 monitor_printf(mon, "send-configuration: %s\n", 46 ms->send_configuration ? "on" : "off"); 47 monitor_printf(mon, "send-section-footer: %s\n", 48 ms->send_section_footer ? "on" : "off"); 49 monitor_printf(mon, "decompress-error-check: %s\n", 50 ms->decompress_error_check ? "on" : "off"); 51 monitor_printf(mon, "clear-bitmap-shift: %u\n", 52 ms->clear_bitmap_shift); 53 } 54 55 void hmp_info_migrate(Monitor *mon, const QDict *qdict) 56 { 57 MigrationInfo *info; 58 59 info = qmp_query_migrate(NULL); 60 61 migration_global_dump(mon); 62 63 if (info->blocked_reasons) { 64 strList *reasons = info->blocked_reasons; 65 monitor_printf(mon, "Outgoing migration blocked:\n"); 66 while (reasons) { 67 monitor_printf(mon, " %s\n", reasons->value); 68 reasons = reasons->next; 69 } 70 } 71 72 if (info->has_status) { 73 monitor_printf(mon, "Migration status: %s", 74 MigrationStatus_str(info->status)); 75 if (info->status == MIGRATION_STATUS_FAILED && info->error_desc) { 76 monitor_printf(mon, " (%s)\n", info->error_desc); 77 } else { 78 monitor_printf(mon, "\n"); 79 } 80 81 monitor_printf(mon, "total time: %" PRIu64 " ms\n", 82 info->total_time); 83 if (info->has_expected_downtime) { 84 monitor_printf(mon, "expected downtime: %" PRIu64 " ms\n", 85 info->expected_downtime); 86 } 87 if (info->has_downtime) { 88 monitor_printf(mon, "downtime: %" PRIu64 " ms\n", 89 info->downtime); 90 } 91 if (info->has_setup_time) { 92 monitor_printf(mon, "setup: %" PRIu64 " ms\n", 93 info->setup_time); 94 } 95 } 96 97 if (info->ram) { 98 monitor_printf(mon, "transferred ram: %" PRIu64 " kbytes\n", 99 info->ram->transferred >> 10); 100 monitor_printf(mon, "throughput: %0.2f mbps\n", 101 info->ram->mbps); 102 monitor_printf(mon, "remaining ram: %" PRIu64 " kbytes\n", 103 info->ram->remaining >> 10); 104 monitor_printf(mon, "total ram: %" PRIu64 " kbytes\n", 105 info->ram->total >> 10); 106 monitor_printf(mon, "duplicate: %" PRIu64 " pages\n", 107 info->ram->duplicate); 108 monitor_printf(mon, "skipped: %" PRIu64 " pages\n", 109 info->ram->skipped); 110 monitor_printf(mon, "normal: %" PRIu64 " pages\n", 111 info->ram->normal); 112 monitor_printf(mon, "normal bytes: %" PRIu64 " kbytes\n", 113 info->ram->normal_bytes >> 10); 114 monitor_printf(mon, "dirty sync count: %" PRIu64 "\n", 115 info->ram->dirty_sync_count); 116 monitor_printf(mon, "page size: %" PRIu64 " kbytes\n", 117 info->ram->page_size >> 10); 118 monitor_printf(mon, "multifd bytes: %" PRIu64 " kbytes\n", 119 info->ram->multifd_bytes >> 10); 120 monitor_printf(mon, "pages-per-second: %" PRIu64 "\n", 121 info->ram->pages_per_second); 122 123 if (info->ram->dirty_pages_rate) { 124 monitor_printf(mon, "dirty pages rate: %" PRIu64 " pages\n", 125 info->ram->dirty_pages_rate); 126 } 127 if (info->ram->postcopy_requests) { 128 monitor_printf(mon, "postcopy request count: %" PRIu64 "\n", 129 info->ram->postcopy_requests); 130 } 131 if (info->ram->precopy_bytes) { 132 monitor_printf(mon, "precopy ram: %" PRIu64 " kbytes\n", 133 info->ram->precopy_bytes >> 10); 134 } 135 if (info->ram->downtime_bytes) { 136 monitor_printf(mon, "downtime ram: %" PRIu64 " kbytes\n", 137 info->ram->downtime_bytes >> 10); 138 } 139 if (info->ram->postcopy_bytes) { 140 monitor_printf(mon, "postcopy ram: %" PRIu64 " kbytes\n", 141 info->ram->postcopy_bytes >> 10); 142 } 143 if (info->ram->dirty_sync_missed_zero_copy) { 144 monitor_printf(mon, 145 "Zero-copy-send fallbacks happened: %" PRIu64 " times\n", 146 info->ram->dirty_sync_missed_zero_copy); 147 } 148 } 149 150 if (info->disk) { 151 monitor_printf(mon, "transferred disk: %" PRIu64 " kbytes\n", 152 info->disk->transferred >> 10); 153 monitor_printf(mon, "remaining disk: %" PRIu64 " kbytes\n", 154 info->disk->remaining >> 10); 155 monitor_printf(mon, "total disk: %" PRIu64 " kbytes\n", 156 info->disk->total >> 10); 157 } 158 159 if (info->xbzrle_cache) { 160 monitor_printf(mon, "cache size: %" PRIu64 " bytes\n", 161 info->xbzrle_cache->cache_size); 162 monitor_printf(mon, "xbzrle transferred: %" PRIu64 " kbytes\n", 163 info->xbzrle_cache->bytes >> 10); 164 monitor_printf(mon, "xbzrle pages: %" PRIu64 " pages\n", 165 info->xbzrle_cache->pages); 166 monitor_printf(mon, "xbzrle cache miss: %" PRIu64 " pages\n", 167 info->xbzrle_cache->cache_miss); 168 monitor_printf(mon, "xbzrle cache miss rate: %0.2f\n", 169 info->xbzrle_cache->cache_miss_rate); 170 monitor_printf(mon, "xbzrle encoding rate: %0.2f\n", 171 info->xbzrle_cache->encoding_rate); 172 monitor_printf(mon, "xbzrle overflow: %" PRIu64 "\n", 173 info->xbzrle_cache->overflow); 174 } 175 176 if (info->compression) { 177 monitor_printf(mon, "compression pages: %" PRIu64 " pages\n", 178 info->compression->pages); 179 monitor_printf(mon, "compression busy: %" PRIu64 "\n", 180 info->compression->busy); 181 monitor_printf(mon, "compression busy rate: %0.2f\n", 182 info->compression->busy_rate); 183 monitor_printf(mon, "compressed size: %" PRIu64 " kbytes\n", 184 info->compression->compressed_size >> 10); 185 monitor_printf(mon, "compression rate: %0.2f\n", 186 info->compression->compression_rate); 187 } 188 189 if (info->has_cpu_throttle_percentage) { 190 monitor_printf(mon, "cpu throttle percentage: %" PRIu64 "\n", 191 info->cpu_throttle_percentage); 192 } 193 194 if (info->has_dirty_limit_throttle_time_per_round) { 195 monitor_printf(mon, "dirty-limit throttle time: %" PRIu64 " us\n", 196 info->dirty_limit_throttle_time_per_round); 197 } 198 199 if (info->has_dirty_limit_ring_full_time) { 200 monitor_printf(mon, "dirty-limit ring full time: %" PRIu64 " us\n", 201 info->dirty_limit_ring_full_time); 202 } 203 204 if (info->has_postcopy_blocktime) { 205 monitor_printf(mon, "postcopy blocktime: %u\n", 206 info->postcopy_blocktime); 207 } 208 209 if (info->has_postcopy_vcpu_blocktime) { 210 Visitor *v; 211 char *str; 212 v = string_output_visitor_new(false, &str); 213 visit_type_uint32List(v, NULL, &info->postcopy_vcpu_blocktime, 214 &error_abort); 215 visit_complete(v, &str); 216 monitor_printf(mon, "postcopy vcpu blocktime: %s\n", str); 217 g_free(str); 218 visit_free(v); 219 } 220 if (info->has_socket_address) { 221 SocketAddressList *addr; 222 223 monitor_printf(mon, "socket address: [\n"); 224 225 for (addr = info->socket_address; addr; addr = addr->next) { 226 char *s = socket_uri(addr->value); 227 monitor_printf(mon, "\t%s\n", s); 228 g_free(s); 229 } 230 monitor_printf(mon, "]\n"); 231 } 232 233 if (info->vfio) { 234 monitor_printf(mon, "vfio device transferred: %" PRIu64 " kbytes\n", 235 info->vfio->transferred >> 10); 236 } 237 238 qapi_free_MigrationInfo(info); 239 } 240 241 void hmp_info_migrate_capabilities(Monitor *mon, const QDict *qdict) 242 { 243 MigrationCapabilityStatusList *caps, *cap; 244 245 caps = qmp_query_migrate_capabilities(NULL); 246 247 if (caps) { 248 for (cap = caps; cap; cap = cap->next) { 249 monitor_printf(mon, "%s: %s\n", 250 MigrationCapability_str(cap->value->capability), 251 cap->value->state ? "on" : "off"); 252 } 253 } 254 255 qapi_free_MigrationCapabilityStatusList(caps); 256 } 257 258 void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) 259 { 260 MigrationParameters *params; 261 262 params = qmp_query_migrate_parameters(NULL); 263 264 if (params) { 265 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 266 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_INITIAL), 267 params->announce_initial); 268 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 269 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_MAX), 270 params->announce_max); 271 monitor_printf(mon, "%s: %" PRIu64 "\n", 272 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_ROUNDS), 273 params->announce_rounds); 274 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 275 MigrationParameter_str(MIGRATION_PARAMETER_ANNOUNCE_STEP), 276 params->announce_step); 277 assert(params->has_compress_level); 278 monitor_printf(mon, "%s: %u\n", 279 MigrationParameter_str(MIGRATION_PARAMETER_COMPRESS_LEVEL), 280 params->compress_level); 281 assert(params->has_compress_threads); 282 monitor_printf(mon, "%s: %u\n", 283 MigrationParameter_str(MIGRATION_PARAMETER_COMPRESS_THREADS), 284 params->compress_threads); 285 assert(params->has_compress_wait_thread); 286 monitor_printf(mon, "%s: %s\n", 287 MigrationParameter_str(MIGRATION_PARAMETER_COMPRESS_WAIT_THREAD), 288 params->compress_wait_thread ? "on" : "off"); 289 assert(params->has_decompress_threads); 290 monitor_printf(mon, "%s: %u\n", 291 MigrationParameter_str(MIGRATION_PARAMETER_DECOMPRESS_THREADS), 292 params->decompress_threads); 293 assert(params->has_throttle_trigger_threshold); 294 monitor_printf(mon, "%s: %u\n", 295 MigrationParameter_str(MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD), 296 params->throttle_trigger_threshold); 297 assert(params->has_cpu_throttle_initial); 298 monitor_printf(mon, "%s: %u\n", 299 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL), 300 params->cpu_throttle_initial); 301 assert(params->has_cpu_throttle_increment); 302 monitor_printf(mon, "%s: %u\n", 303 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT), 304 params->cpu_throttle_increment); 305 assert(params->has_cpu_throttle_tailslow); 306 monitor_printf(mon, "%s: %s\n", 307 MigrationParameter_str(MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW), 308 params->cpu_throttle_tailslow ? "on" : "off"); 309 assert(params->has_max_cpu_throttle); 310 monitor_printf(mon, "%s: %u\n", 311 MigrationParameter_str(MIGRATION_PARAMETER_MAX_CPU_THROTTLE), 312 params->max_cpu_throttle); 313 assert(params->tls_creds); 314 monitor_printf(mon, "%s: '%s'\n", 315 MigrationParameter_str(MIGRATION_PARAMETER_TLS_CREDS), 316 params->tls_creds); 317 assert(params->tls_hostname); 318 monitor_printf(mon, "%s: '%s'\n", 319 MigrationParameter_str(MIGRATION_PARAMETER_TLS_HOSTNAME), 320 params->tls_hostname); 321 assert(params->has_max_bandwidth); 322 monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n", 323 MigrationParameter_str(MIGRATION_PARAMETER_MAX_BANDWIDTH), 324 params->max_bandwidth); 325 assert(params->has_avail_switchover_bandwidth); 326 monitor_printf(mon, "%s: %" PRIu64 " bytes/second\n", 327 MigrationParameter_str(MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH), 328 params->avail_switchover_bandwidth); 329 assert(params->has_downtime_limit); 330 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 331 MigrationParameter_str(MIGRATION_PARAMETER_DOWNTIME_LIMIT), 332 params->downtime_limit); 333 assert(params->has_x_checkpoint_delay); 334 monitor_printf(mon, "%s: %u ms\n", 335 MigrationParameter_str(MIGRATION_PARAMETER_X_CHECKPOINT_DELAY), 336 params->x_checkpoint_delay); 337 assert(params->has_block_incremental); 338 monitor_printf(mon, "%s: %s\n", 339 MigrationParameter_str(MIGRATION_PARAMETER_BLOCK_INCREMENTAL), 340 params->block_incremental ? "on" : "off"); 341 monitor_printf(mon, "%s: %u\n", 342 MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_CHANNELS), 343 params->multifd_channels); 344 monitor_printf(mon, "%s: %s\n", 345 MigrationParameter_str(MIGRATION_PARAMETER_MULTIFD_COMPRESSION), 346 MultiFDCompression_str(params->multifd_compression)); 347 assert(params->has_zero_page_detection); 348 monitor_printf(mon, "%s: %s\n", 349 MigrationParameter_str(MIGRATION_PARAMETER_ZERO_PAGE_DETECTION), 350 qapi_enum_lookup(&ZeroPageDetection_lookup, 351 params->zero_page_detection)); 352 monitor_printf(mon, "%s: %" PRIu64 " bytes\n", 353 MigrationParameter_str(MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE), 354 params->xbzrle_cache_size); 355 monitor_printf(mon, "%s: %" PRIu64 "\n", 356 MigrationParameter_str(MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH), 357 params->max_postcopy_bandwidth); 358 monitor_printf(mon, "%s: '%s'\n", 359 MigrationParameter_str(MIGRATION_PARAMETER_TLS_AUTHZ), 360 params->tls_authz); 361 362 if (params->has_block_bitmap_mapping) { 363 const BitmapMigrationNodeAliasList *bmnal; 364 365 monitor_printf(mon, "%s:\n", 366 MigrationParameter_str( 367 MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING)); 368 369 for (bmnal = params->block_bitmap_mapping; 370 bmnal; 371 bmnal = bmnal->next) 372 { 373 const BitmapMigrationNodeAlias *bmna = bmnal->value; 374 const BitmapMigrationBitmapAliasList *bmbal; 375 376 monitor_printf(mon, " '%s' -> '%s'\n", 377 bmna->node_name, bmna->alias); 378 379 for (bmbal = bmna->bitmaps; bmbal; bmbal = bmbal->next) { 380 const BitmapMigrationBitmapAlias *bmba = bmbal->value; 381 382 monitor_printf(mon, " '%s' -> '%s'\n", 383 bmba->name, bmba->alias); 384 } 385 } 386 } 387 388 monitor_printf(mon, "%s: %" PRIu64 " ms\n", 389 MigrationParameter_str(MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD), 390 params->x_vcpu_dirty_limit_period); 391 392 monitor_printf(mon, "%s: %" PRIu64 " MB/s\n", 393 MigrationParameter_str(MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT), 394 params->vcpu_dirty_limit); 395 396 assert(params->has_mode); 397 monitor_printf(mon, "%s: %s\n", 398 MigrationParameter_str(MIGRATION_PARAMETER_MODE), 399 qapi_enum_lookup(&MigMode_lookup, params->mode)); 400 } 401 402 qapi_free_MigrationParameters(params); 403 } 404 405 void hmp_loadvm(Monitor *mon, const QDict *qdict) 406 { 407 RunState saved_state = runstate_get(); 408 409 const char *name = qdict_get_str(qdict, "name"); 410 Error *err = NULL; 411 412 vm_stop(RUN_STATE_RESTORE_VM); 413 414 if (load_snapshot(name, NULL, false, NULL, &err)) { 415 load_snapshot_resume(saved_state); 416 } 417 418 hmp_handle_error(mon, err); 419 } 420 421 void hmp_savevm(Monitor *mon, const QDict *qdict) 422 { 423 Error *err = NULL; 424 425 save_snapshot(qdict_get_try_str(qdict, "name"), 426 true, NULL, false, NULL, &err); 427 hmp_handle_error(mon, err); 428 } 429 430 void hmp_delvm(Monitor *mon, const QDict *qdict) 431 { 432 Error *err = NULL; 433 const char *name = qdict_get_str(qdict, "name"); 434 435 delete_snapshot(name, false, NULL, &err); 436 hmp_handle_error(mon, err); 437 } 438 439 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict) 440 { 441 qmp_migrate_cancel(NULL); 442 } 443 444 void hmp_migrate_continue(Monitor *mon, const QDict *qdict) 445 { 446 Error *err = NULL; 447 const char *state = qdict_get_str(qdict, "state"); 448 int val = qapi_enum_parse(&MigrationStatus_lookup, state, -1, &err); 449 450 if (val >= 0) { 451 qmp_migrate_continue(val, &err); 452 } 453 454 hmp_handle_error(mon, err); 455 } 456 457 void hmp_migrate_incoming(Monitor *mon, const QDict *qdict) 458 { 459 Error *err = NULL; 460 const char *uri = qdict_get_str(qdict, "uri"); 461 MigrationChannelList *caps = NULL; 462 g_autoptr(MigrationChannel) channel = NULL; 463 464 if (!migrate_uri_parse(uri, &channel, &err)) { 465 goto end; 466 } 467 QAPI_LIST_PREPEND(caps, g_steal_pointer(&channel)); 468 469 qmp_migrate_incoming(NULL, true, caps, &err); 470 qapi_free_MigrationChannelList(caps); 471 472 end: 473 hmp_handle_error(mon, err); 474 } 475 476 void hmp_migrate_recover(Monitor *mon, const QDict *qdict) 477 { 478 Error *err = NULL; 479 const char *uri = qdict_get_str(qdict, "uri"); 480 481 qmp_migrate_recover(uri, &err); 482 483 hmp_handle_error(mon, err); 484 } 485 486 void hmp_migrate_pause(Monitor *mon, const QDict *qdict) 487 { 488 Error *err = NULL; 489 490 qmp_migrate_pause(&err); 491 492 hmp_handle_error(mon, err); 493 } 494 495 496 void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict) 497 { 498 const char *cap = qdict_get_str(qdict, "capability"); 499 bool state = qdict_get_bool(qdict, "state"); 500 Error *err = NULL; 501 MigrationCapabilityStatusList *caps = NULL; 502 MigrationCapabilityStatus *value; 503 int val; 504 505 val = qapi_enum_parse(&MigrationCapability_lookup, cap, -1, &err); 506 if (val < 0) { 507 goto end; 508 } 509 510 value = g_malloc0(sizeof(*value)); 511 value->capability = val; 512 value->state = state; 513 QAPI_LIST_PREPEND(caps, value); 514 qmp_migrate_set_capabilities(caps, &err); 515 qapi_free_MigrationCapabilityStatusList(caps); 516 517 end: 518 hmp_handle_error(mon, err); 519 } 520 521 void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) 522 { 523 const char *param = qdict_get_str(qdict, "parameter"); 524 const char *valuestr = qdict_get_str(qdict, "value"); 525 Visitor *v = string_input_visitor_new(valuestr); 526 MigrateSetParameters *p = g_new0(MigrateSetParameters, 1); 527 uint64_t valuebw = 0; 528 uint64_t cache_size; 529 Error *err = NULL; 530 int val, ret; 531 532 val = qapi_enum_parse(&MigrationParameter_lookup, param, -1, &err); 533 if (val < 0) { 534 goto cleanup; 535 } 536 537 switch (val) { 538 case MIGRATION_PARAMETER_COMPRESS_LEVEL: 539 p->has_compress_level = true; 540 visit_type_uint8(v, param, &p->compress_level, &err); 541 break; 542 case MIGRATION_PARAMETER_COMPRESS_THREADS: 543 p->has_compress_threads = true; 544 visit_type_uint8(v, param, &p->compress_threads, &err); 545 break; 546 case MIGRATION_PARAMETER_COMPRESS_WAIT_THREAD: 547 p->has_compress_wait_thread = true; 548 visit_type_bool(v, param, &p->compress_wait_thread, &err); 549 break; 550 case MIGRATION_PARAMETER_DECOMPRESS_THREADS: 551 p->has_decompress_threads = true; 552 visit_type_uint8(v, param, &p->decompress_threads, &err); 553 break; 554 case MIGRATION_PARAMETER_THROTTLE_TRIGGER_THRESHOLD: 555 p->has_throttle_trigger_threshold = true; 556 visit_type_uint8(v, param, &p->throttle_trigger_threshold, &err); 557 break; 558 case MIGRATION_PARAMETER_CPU_THROTTLE_INITIAL: 559 p->has_cpu_throttle_initial = true; 560 visit_type_uint8(v, param, &p->cpu_throttle_initial, &err); 561 break; 562 case MIGRATION_PARAMETER_CPU_THROTTLE_INCREMENT: 563 p->has_cpu_throttle_increment = true; 564 visit_type_uint8(v, param, &p->cpu_throttle_increment, &err); 565 break; 566 case MIGRATION_PARAMETER_CPU_THROTTLE_TAILSLOW: 567 p->has_cpu_throttle_tailslow = true; 568 visit_type_bool(v, param, &p->cpu_throttle_tailslow, &err); 569 break; 570 case MIGRATION_PARAMETER_MAX_CPU_THROTTLE: 571 p->has_max_cpu_throttle = true; 572 visit_type_uint8(v, param, &p->max_cpu_throttle, &err); 573 break; 574 case MIGRATION_PARAMETER_TLS_CREDS: 575 p->tls_creds = g_new0(StrOrNull, 1); 576 p->tls_creds->type = QTYPE_QSTRING; 577 visit_type_str(v, param, &p->tls_creds->u.s, &err); 578 break; 579 case MIGRATION_PARAMETER_TLS_HOSTNAME: 580 p->tls_hostname = g_new0(StrOrNull, 1); 581 p->tls_hostname->type = QTYPE_QSTRING; 582 visit_type_str(v, param, &p->tls_hostname->u.s, &err); 583 break; 584 case MIGRATION_PARAMETER_TLS_AUTHZ: 585 p->tls_authz = g_new0(StrOrNull, 1); 586 p->tls_authz->type = QTYPE_QSTRING; 587 visit_type_str(v, param, &p->tls_authz->u.s, &err); 588 break; 589 case MIGRATION_PARAMETER_MAX_BANDWIDTH: 590 p->has_max_bandwidth = true; 591 /* 592 * Can't use visit_type_size() here, because it 593 * defaults to Bytes rather than Mebibytes. 594 */ 595 ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw); 596 if (ret < 0 || valuebw > INT64_MAX 597 || (size_t)valuebw != valuebw) { 598 error_setg(&err, "Invalid size %s", valuestr); 599 break; 600 } 601 p->max_bandwidth = valuebw; 602 break; 603 case MIGRATION_PARAMETER_AVAIL_SWITCHOVER_BANDWIDTH: 604 p->has_avail_switchover_bandwidth = true; 605 ret = qemu_strtosz_MiB(valuestr, NULL, &valuebw); 606 if (ret < 0 || valuebw > INT64_MAX 607 || (size_t)valuebw != valuebw) { 608 error_setg(&err, "Invalid size %s", valuestr); 609 break; 610 } 611 p->avail_switchover_bandwidth = valuebw; 612 break; 613 case MIGRATION_PARAMETER_DOWNTIME_LIMIT: 614 p->has_downtime_limit = true; 615 visit_type_size(v, param, &p->downtime_limit, &err); 616 break; 617 case MIGRATION_PARAMETER_X_CHECKPOINT_DELAY: 618 p->has_x_checkpoint_delay = true; 619 visit_type_uint32(v, param, &p->x_checkpoint_delay, &err); 620 break; 621 case MIGRATION_PARAMETER_BLOCK_INCREMENTAL: 622 p->has_block_incremental = true; 623 visit_type_bool(v, param, &p->block_incremental, &err); 624 break; 625 case MIGRATION_PARAMETER_MULTIFD_CHANNELS: 626 p->has_multifd_channels = true; 627 visit_type_uint8(v, param, &p->multifd_channels, &err); 628 break; 629 case MIGRATION_PARAMETER_MULTIFD_COMPRESSION: 630 p->has_multifd_compression = true; 631 visit_type_MultiFDCompression(v, param, &p->multifd_compression, 632 &err); 633 break; 634 case MIGRATION_PARAMETER_MULTIFD_ZLIB_LEVEL: 635 p->has_multifd_zlib_level = true; 636 visit_type_uint8(v, param, &p->multifd_zlib_level, &err); 637 break; 638 case MIGRATION_PARAMETER_MULTIFD_ZSTD_LEVEL: 639 p->has_multifd_zstd_level = true; 640 visit_type_uint8(v, param, &p->multifd_zstd_level, &err); 641 break; 642 case MIGRATION_PARAMETER_ZERO_PAGE_DETECTION: 643 p->has_zero_page_detection = true; 644 visit_type_ZeroPageDetection(v, param, &p->zero_page_detection, &err); 645 break; 646 case MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE: 647 p->has_xbzrle_cache_size = true; 648 if (!visit_type_size(v, param, &cache_size, &err)) { 649 break; 650 } 651 if (cache_size > INT64_MAX || (size_t)cache_size != cache_size) { 652 error_setg(&err, "Invalid size %s", valuestr); 653 break; 654 } 655 p->xbzrle_cache_size = cache_size; 656 break; 657 case MIGRATION_PARAMETER_MAX_POSTCOPY_BANDWIDTH: 658 p->has_max_postcopy_bandwidth = true; 659 visit_type_size(v, param, &p->max_postcopy_bandwidth, &err); 660 break; 661 case MIGRATION_PARAMETER_ANNOUNCE_INITIAL: 662 p->has_announce_initial = true; 663 visit_type_size(v, param, &p->announce_initial, &err); 664 break; 665 case MIGRATION_PARAMETER_ANNOUNCE_MAX: 666 p->has_announce_max = true; 667 visit_type_size(v, param, &p->announce_max, &err); 668 break; 669 case MIGRATION_PARAMETER_ANNOUNCE_ROUNDS: 670 p->has_announce_rounds = true; 671 visit_type_size(v, param, &p->announce_rounds, &err); 672 break; 673 case MIGRATION_PARAMETER_ANNOUNCE_STEP: 674 p->has_announce_step = true; 675 visit_type_size(v, param, &p->announce_step, &err); 676 break; 677 case MIGRATION_PARAMETER_BLOCK_BITMAP_MAPPING: 678 error_setg(&err, "The block-bitmap-mapping parameter can only be set " 679 "through QMP"); 680 break; 681 case MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD: 682 p->has_x_vcpu_dirty_limit_period = true; 683 visit_type_size(v, param, &p->x_vcpu_dirty_limit_period, &err); 684 break; 685 case MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT: 686 p->has_vcpu_dirty_limit = true; 687 visit_type_size(v, param, &p->vcpu_dirty_limit, &err); 688 break; 689 case MIGRATION_PARAMETER_MODE: 690 p->has_mode = true; 691 visit_type_MigMode(v, param, &p->mode, &err); 692 break; 693 default: 694 assert(0); 695 } 696 697 if (err) { 698 goto cleanup; 699 } 700 701 qmp_migrate_set_parameters(p, &err); 702 703 cleanup: 704 qapi_free_MigrateSetParameters(p); 705 visit_free(v); 706 hmp_handle_error(mon, err); 707 } 708 709 void hmp_migrate_start_postcopy(Monitor *mon, const QDict *qdict) 710 { 711 Error *err = NULL; 712 qmp_migrate_start_postcopy(&err); 713 hmp_handle_error(mon, err); 714 } 715 716 #ifdef CONFIG_REPLICATION 717 void hmp_x_colo_lost_heartbeat(Monitor *mon, const QDict *qdict) 718 { 719 Error *err = NULL; 720 721 qmp_x_colo_lost_heartbeat(&err); 722 hmp_handle_error(mon, err); 723 } 724 #endif 725 726 typedef struct HMPMigrationStatus { 727 QEMUTimer *timer; 728 Monitor *mon; 729 } HMPMigrationStatus; 730 731 static void hmp_migrate_status_cb(void *opaque) 732 { 733 HMPMigrationStatus *status = opaque; 734 MigrationInfo *info; 735 736 info = qmp_query_migrate(NULL); 737 if (!info->has_status || info->status == MIGRATION_STATUS_ACTIVE || 738 info->status == MIGRATION_STATUS_SETUP) { 739 if (info->disk) { 740 int progress; 741 742 if (info->disk->remaining) { 743 progress = info->disk->transferred * 100 / info->disk->total; 744 } else { 745 progress = 100; 746 } 747 748 monitor_printf(status->mon, "Completed %d %%\r", progress); 749 monitor_flush(status->mon); 750 } 751 752 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 1000); 753 } else { 754 if (migrate_block()) { 755 monitor_printf(status->mon, "\n"); 756 } 757 if (info->error_desc) { 758 error_report("%s", info->error_desc); 759 } 760 monitor_resume(status->mon); 761 timer_free(status->timer); 762 g_free(status); 763 } 764 765 qapi_free_MigrationInfo(info); 766 } 767 768 void hmp_migrate(Monitor *mon, const QDict *qdict) 769 { 770 bool detach = qdict_get_try_bool(qdict, "detach", false); 771 bool blk = qdict_get_try_bool(qdict, "blk", false); 772 bool inc = qdict_get_try_bool(qdict, "inc", false); 773 bool resume = qdict_get_try_bool(qdict, "resume", false); 774 const char *uri = qdict_get_str(qdict, "uri"); 775 Error *err = NULL; 776 g_autoptr(MigrationChannelList) caps = NULL; 777 g_autoptr(MigrationChannel) channel = NULL; 778 779 if (inc) { 780 warn_report("option '-i' is deprecated;" 781 " use blockdev-mirror with NBD instead"); 782 } 783 784 if (blk) { 785 warn_report("option '-b' is deprecated;" 786 " use blockdev-mirror with NBD instead"); 787 } 788 789 if (!migrate_uri_parse(uri, &channel, &err)) { 790 hmp_handle_error(mon, err); 791 return; 792 } 793 QAPI_LIST_PREPEND(caps, g_steal_pointer(&channel)); 794 795 qmp_migrate(NULL, true, caps, !!blk, blk, !!inc, inc, 796 false, false, true, resume, &err); 797 if (hmp_handle_error(mon, err)) { 798 return; 799 } 800 801 if (!detach) { 802 HMPMigrationStatus *status; 803 804 if (monitor_suspend(mon) < 0) { 805 monitor_printf(mon, "terminal does not allow synchronous " 806 "migration, continuing detached\n"); 807 return; 808 } 809 810 status = g_malloc0(sizeof(*status)); 811 status->mon = mon; 812 status->timer = timer_new_ms(QEMU_CLOCK_REALTIME, hmp_migrate_status_cb, 813 status); 814 timer_mod(status->timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)); 815 } 816 } 817 818 void migrate_set_capability_completion(ReadLineState *rs, int nb_args, 819 const char *str) 820 { 821 size_t len; 822 823 len = strlen(str); 824 readline_set_completion_index(rs, len); 825 if (nb_args == 2) { 826 int i; 827 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) { 828 readline_add_completion_of(rs, str, MigrationCapability_str(i)); 829 } 830 } else if (nb_args == 3) { 831 readline_add_completion_of(rs, str, "on"); 832 readline_add_completion_of(rs, str, "off"); 833 } 834 } 835 836 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args, 837 const char *str) 838 { 839 size_t len; 840 841 len = strlen(str); 842 readline_set_completion_index(rs, len); 843 if (nb_args == 2) { 844 int i; 845 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) { 846 readline_add_completion_of(rs, str, MigrationParameter_str(i)); 847 } 848 } 849 } 850 851 static void vm_completion(ReadLineState *rs, const char *str) 852 { 853 size_t len; 854 BlockDriverState *bs; 855 BdrvNextIterator it; 856 857 GRAPH_RDLOCK_GUARD_MAINLOOP(); 858 859 len = strlen(str); 860 readline_set_completion_index(rs, len); 861 862 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) { 863 SnapshotInfoList *snapshots, *snapshot; 864 bool ok = false; 865 866 if (bdrv_can_snapshot(bs)) { 867 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0; 868 } 869 if (!ok) { 870 continue; 871 } 872 873 snapshot = snapshots; 874 while (snapshot) { 875 readline_add_completion_of(rs, str, snapshot->value->name); 876 readline_add_completion_of(rs, str, snapshot->value->id); 877 snapshot = snapshot->next; 878 } 879 qapi_free_SnapshotInfoList(snapshots); 880 } 881 882 } 883 884 void delvm_completion(ReadLineState *rs, int nb_args, const char *str) 885 { 886 if (nb_args == 2) { 887 vm_completion(rs, str); 888 } 889 } 890 891 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str) 892 { 893 if (nb_args == 2) { 894 vm_completion(rs, str); 895 } 896 } 897