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