1 /* 2 * QTest testcase for migration 3 * 4 * Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates 5 * based on the vhost-user-test.c that is: 6 * Copyright (c) 2014 Virtual Open Systems Sarl. 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or later. 9 * See the COPYING file in the top-level directory. 10 * 11 */ 12 13 #include "qemu/osdep.h" 14 15 #include "libqtest.h" 16 #include "qapi/error.h" 17 #include "qapi/qmp/qdict.h" 18 #include "qemu/module.h" 19 #include "qemu/option.h" 20 #include "qemu/range.h" 21 #include "qemu/sockets.h" 22 #include "chardev/char.h" 23 #include "qapi/qapi-visit-sockets.h" 24 #include "qapi/qobject-input-visitor.h" 25 #include "qapi/qobject-output-visitor.h" 26 #include "crypto/tlscredspsk.h" 27 #include "qapi/qmp/qlist.h" 28 29 #include "migration-helpers.h" 30 #include "tests/migration/migration-test.h" 31 #ifdef CONFIG_GNUTLS 32 # include "tests/unit/crypto-tls-psk-helpers.h" 33 # ifdef CONFIG_TASN1 34 # include "tests/unit/crypto-tls-x509-helpers.h" 35 # endif /* CONFIG_TASN1 */ 36 #endif /* CONFIG_GNUTLS */ 37 38 /* For dirty ring test; so far only x86_64 is supported */ 39 #if defined(__linux__) && defined(HOST_X86_64) 40 #include "linux/kvm.h" 41 #endif 42 43 /* TODO actually test the results and get rid of this */ 44 #define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS__)) 45 46 unsigned start_address; 47 unsigned end_address; 48 static bool uffd_feature_thread_id; 49 50 /* 51 * Dirtylimit stop working if dirty page rate error 52 * value less than DIRTYLIMIT_TOLERANCE_RANGE 53 */ 54 #define DIRTYLIMIT_TOLERANCE_RANGE 25 /* MB/s */ 55 56 #if defined(__linux__) 57 #include <sys/syscall.h> 58 #include <sys/vfs.h> 59 #endif 60 61 #if defined(__linux__) && defined(__NR_userfaultfd) && defined(CONFIG_EVENTFD) 62 #include <sys/eventfd.h> 63 #include <sys/ioctl.h> 64 #include <linux/userfaultfd.h> 65 66 static bool ufd_version_check(void) 67 { 68 struct uffdio_api api_struct; 69 uint64_t ioctl_mask; 70 71 int ufd = syscall(__NR_userfaultfd, O_CLOEXEC); 72 73 if (ufd == -1) { 74 g_test_message("Skipping test: userfaultfd not available"); 75 return false; 76 } 77 78 api_struct.api = UFFD_API; 79 api_struct.features = 0; 80 if (ioctl(ufd, UFFDIO_API, &api_struct)) { 81 g_test_message("Skipping test: UFFDIO_API failed"); 82 return false; 83 } 84 uffd_feature_thread_id = api_struct.features & UFFD_FEATURE_THREAD_ID; 85 86 ioctl_mask = (__u64)1 << _UFFDIO_REGISTER | 87 (__u64)1 << _UFFDIO_UNREGISTER; 88 if ((api_struct.ioctls & ioctl_mask) != ioctl_mask) { 89 g_test_message("Skipping test: Missing userfault feature"); 90 return false; 91 } 92 93 return true; 94 } 95 96 #else 97 static bool ufd_version_check(void) 98 { 99 g_test_message("Skipping test: Userfault not available (builtdtime)"); 100 return false; 101 } 102 103 #endif 104 105 static char *tmpfs; 106 107 /* The boot file modifies memory area in [start_address, end_address) 108 * repeatedly. It outputs a 'B' at a fixed rate while it's still running. 109 */ 110 #include "tests/migration/i386/a-b-bootblock.h" 111 #include "tests/migration/aarch64/a-b-kernel.h" 112 #include "tests/migration/s390x/a-b-bios.h" 113 114 static void init_bootfile(const char *bootpath, void *content, size_t len) 115 { 116 FILE *bootfile = fopen(bootpath, "wb"); 117 118 g_assert_cmpint(fwrite(content, len, 1, bootfile), ==, 1); 119 fclose(bootfile); 120 } 121 122 /* 123 * Wait for some output in the serial output file, 124 * we get an 'A' followed by an endless string of 'B's 125 * but on the destination we won't have the A. 126 */ 127 static void wait_for_serial(const char *side) 128 { 129 g_autofree char *serialpath = g_strdup_printf("%s/%s", tmpfs, side); 130 FILE *serialfile = fopen(serialpath, "r"); 131 const char *arch = qtest_get_arch(); 132 int started = (strcmp(side, "src_serial") == 0 && 133 strcmp(arch, "ppc64") == 0) ? 0 : 1; 134 135 do { 136 int readvalue = fgetc(serialfile); 137 138 if (!started) { 139 /* SLOF prints its banner before starting test, 140 * to ignore it, mark the start of the test with '_', 141 * ignore all characters until this marker 142 */ 143 switch (readvalue) { 144 case '_': 145 started = 1; 146 break; 147 case EOF: 148 fseek(serialfile, 0, SEEK_SET); 149 usleep(1000); 150 break; 151 } 152 continue; 153 } 154 switch (readvalue) { 155 case 'A': 156 /* Fine */ 157 break; 158 159 case 'B': 160 /* It's alive! */ 161 fclose(serialfile); 162 return; 163 164 case EOF: 165 started = (strcmp(side, "src_serial") == 0 && 166 strcmp(arch, "ppc64") == 0) ? 0 : 1; 167 fseek(serialfile, 0, SEEK_SET); 168 usleep(1000); 169 break; 170 171 default: 172 fprintf(stderr, "Unexpected %d on %s serial\n", readvalue, side); 173 g_assert_not_reached(); 174 } 175 } while (true); 176 } 177 178 /* 179 * It's tricky to use qemu's migration event capability with qtest, 180 * events suddenly appearing confuse the qmp()/hmp() responses. 181 */ 182 183 static int64_t read_ram_property_int(QTestState *who, const char *property) 184 { 185 QDict *rsp_return, *rsp_ram; 186 int64_t result; 187 188 rsp_return = migrate_query_not_failed(who); 189 if (!qdict_haskey(rsp_return, "ram")) { 190 /* Still in setup */ 191 result = 0; 192 } else { 193 rsp_ram = qdict_get_qdict(rsp_return, "ram"); 194 result = qdict_get_try_int(rsp_ram, property, 0); 195 } 196 qobject_unref(rsp_return); 197 return result; 198 } 199 200 static int64_t read_migrate_property_int(QTestState *who, const char *property) 201 { 202 QDict *rsp_return; 203 int64_t result; 204 205 rsp_return = migrate_query_not_failed(who); 206 result = qdict_get_try_int(rsp_return, property, 0); 207 qobject_unref(rsp_return); 208 return result; 209 } 210 211 static uint64_t get_migration_pass(QTestState *who) 212 { 213 return read_ram_property_int(who, "dirty-sync-count"); 214 } 215 216 static void read_blocktime(QTestState *who) 217 { 218 QDict *rsp_return; 219 220 rsp_return = migrate_query_not_failed(who); 221 g_assert(qdict_haskey(rsp_return, "postcopy-blocktime")); 222 qobject_unref(rsp_return); 223 } 224 225 static void wait_for_migration_pass(QTestState *who) 226 { 227 uint64_t initial_pass = get_migration_pass(who); 228 uint64_t pass; 229 230 /* Wait for the 1st sync */ 231 while (!got_stop && !initial_pass) { 232 usleep(1000); 233 initial_pass = get_migration_pass(who); 234 } 235 236 do { 237 usleep(1000); 238 pass = get_migration_pass(who); 239 } while (pass == initial_pass && !got_stop); 240 } 241 242 static void check_guests_ram(QTestState *who) 243 { 244 /* Our ASM test will have been incrementing one byte from each page from 245 * start_address to < end_address in order. This gives us a constraint 246 * that any page's byte should be equal or less than the previous pages 247 * byte (mod 256); and they should all be equal except for one transition 248 * at the point where we meet the incrementer. (We're running this with 249 * the guest stopped). 250 */ 251 unsigned address; 252 uint8_t first_byte; 253 uint8_t last_byte; 254 bool hit_edge = false; 255 int bad = 0; 256 257 qtest_memread(who, start_address, &first_byte, 1); 258 last_byte = first_byte; 259 260 for (address = start_address + TEST_MEM_PAGE_SIZE; address < end_address; 261 address += TEST_MEM_PAGE_SIZE) 262 { 263 uint8_t b; 264 qtest_memread(who, address, &b, 1); 265 if (b != last_byte) { 266 if (((b + 1) % 256) == last_byte && !hit_edge) { 267 /* This is OK, the guest stopped at the point of 268 * incrementing the previous page but didn't get 269 * to us yet. 270 */ 271 hit_edge = true; 272 last_byte = b; 273 } else { 274 bad++; 275 if (bad <= 10) { 276 fprintf(stderr, "Memory content inconsistency at %x" 277 " first_byte = %x last_byte = %x current = %x" 278 " hit_edge = %x\n", 279 address, first_byte, last_byte, b, hit_edge); 280 } 281 } 282 } 283 } 284 if (bad >= 10) { 285 fprintf(stderr, "and in another %d pages", bad - 10); 286 } 287 g_assert(bad == 0); 288 } 289 290 static void cleanup(const char *filename) 291 { 292 g_autofree char *path = g_strdup_printf("%s/%s", tmpfs, filename); 293 294 unlink(path); 295 } 296 297 static char *SocketAddress_to_str(SocketAddress *addr) 298 { 299 switch (addr->type) { 300 case SOCKET_ADDRESS_TYPE_INET: 301 return g_strdup_printf("tcp:%s:%s", 302 addr->u.inet.host, 303 addr->u.inet.port); 304 case SOCKET_ADDRESS_TYPE_UNIX: 305 return g_strdup_printf("unix:%s", 306 addr->u.q_unix.path); 307 case SOCKET_ADDRESS_TYPE_FD: 308 return g_strdup_printf("fd:%s", addr->u.fd.str); 309 case SOCKET_ADDRESS_TYPE_VSOCK: 310 return g_strdup_printf("tcp:%s:%s", 311 addr->u.vsock.cid, 312 addr->u.vsock.port); 313 default: 314 return g_strdup("unknown address type"); 315 } 316 } 317 318 static char *migrate_get_socket_address(QTestState *who, const char *parameter) 319 { 320 QDict *rsp; 321 char *result; 322 SocketAddressList *addrs; 323 Visitor *iv = NULL; 324 QObject *object; 325 326 rsp = migrate_query(who); 327 object = qdict_get(rsp, parameter); 328 329 iv = qobject_input_visitor_new(object); 330 visit_type_SocketAddressList(iv, NULL, &addrs, &error_abort); 331 visit_free(iv); 332 333 /* we are only using a single address */ 334 result = SocketAddress_to_str(addrs->value); 335 336 qapi_free_SocketAddressList(addrs); 337 qobject_unref(rsp); 338 return result; 339 } 340 341 static long long migrate_get_parameter_int(QTestState *who, 342 const char *parameter) 343 { 344 QDict *rsp; 345 long long result; 346 347 rsp = wait_command(who, "{ 'execute': 'query-migrate-parameters' }"); 348 result = qdict_get_int(rsp, parameter); 349 qobject_unref(rsp); 350 return result; 351 } 352 353 static void migrate_check_parameter_int(QTestState *who, const char *parameter, 354 long long value) 355 { 356 long long result; 357 358 result = migrate_get_parameter_int(who, parameter); 359 g_assert_cmpint(result, ==, value); 360 } 361 362 static void migrate_set_parameter_int(QTestState *who, const char *parameter, 363 long long value) 364 { 365 QDict *rsp; 366 367 rsp = qtest_qmp(who, 368 "{ 'execute': 'migrate-set-parameters'," 369 "'arguments': { %s: %lld } }", 370 parameter, value); 371 g_assert(qdict_haskey(rsp, "return")); 372 qobject_unref(rsp); 373 migrate_check_parameter_int(who, parameter, value); 374 } 375 376 static char *migrate_get_parameter_str(QTestState *who, 377 const char *parameter) 378 { 379 QDict *rsp; 380 char *result; 381 382 rsp = wait_command(who, "{ 'execute': 'query-migrate-parameters' }"); 383 result = g_strdup(qdict_get_str(rsp, parameter)); 384 qobject_unref(rsp); 385 return result; 386 } 387 388 static void migrate_check_parameter_str(QTestState *who, const char *parameter, 389 const char *value) 390 { 391 g_autofree char *result = migrate_get_parameter_str(who, parameter); 392 g_assert_cmpstr(result, ==, value); 393 } 394 395 static void migrate_set_parameter_str(QTestState *who, const char *parameter, 396 const char *value) 397 { 398 QDict *rsp; 399 400 rsp = qtest_qmp(who, 401 "{ 'execute': 'migrate-set-parameters'," 402 "'arguments': { %s: %s } }", 403 parameter, value); 404 g_assert(qdict_haskey(rsp, "return")); 405 qobject_unref(rsp); 406 migrate_check_parameter_str(who, parameter, value); 407 } 408 409 static void migrate_ensure_non_converge(QTestState *who) 410 { 411 /* Can't converge with 1ms downtime + 30 mbs bandwidth limit */ 412 migrate_set_parameter_int(who, "max-bandwidth", 30 * 1000 * 1000); 413 migrate_set_parameter_int(who, "downtime-limit", 1); 414 } 415 416 static void migrate_ensure_converge(QTestState *who) 417 { 418 /* Should converge with 30s downtime + 1 gbs bandwidth limit */ 419 migrate_set_parameter_int(who, "max-bandwidth", 1 * 1000 * 1000 * 1000); 420 migrate_set_parameter_int(who, "downtime-limit", 30 * 1000); 421 } 422 423 static void migrate_pause(QTestState *who) 424 { 425 QDict *rsp; 426 427 rsp = wait_command(who, "{ 'execute': 'migrate-pause' }"); 428 qobject_unref(rsp); 429 } 430 431 static void migrate_continue(QTestState *who, const char *state) 432 { 433 QDict *rsp; 434 435 rsp = wait_command(who, 436 "{ 'execute': 'migrate-continue'," 437 " 'arguments': { 'state': %s } }", 438 state); 439 qobject_unref(rsp); 440 } 441 442 static void migrate_recover(QTestState *who, const char *uri) 443 { 444 QDict *rsp; 445 446 rsp = wait_command(who, 447 "{ 'execute': 'migrate-recover', " 448 " 'id': 'recover-cmd', " 449 " 'arguments': { 'uri': %s } }", 450 uri); 451 qobject_unref(rsp); 452 } 453 454 static void migrate_cancel(QTestState *who) 455 { 456 QDict *rsp; 457 458 rsp = wait_command(who, "{ 'execute': 'migrate_cancel' }"); 459 qobject_unref(rsp); 460 } 461 462 static void migrate_set_capability(QTestState *who, const char *capability, 463 bool value) 464 { 465 QDict *rsp; 466 467 rsp = qtest_qmp(who, 468 "{ 'execute': 'migrate-set-capabilities'," 469 "'arguments': { " 470 "'capabilities': [ { " 471 "'capability': %s, 'state': %i } ] } }", 472 capability, value); 473 g_assert(qdict_haskey(rsp, "return")); 474 qobject_unref(rsp); 475 } 476 477 static void migrate_postcopy_start(QTestState *from, QTestState *to) 478 { 479 QDict *rsp; 480 481 rsp = wait_command(from, "{ 'execute': 'migrate-start-postcopy' }"); 482 qobject_unref(rsp); 483 484 if (!got_stop) { 485 qtest_qmp_eventwait(from, "STOP"); 486 } 487 488 qtest_qmp_eventwait(to, "RESUME"); 489 } 490 491 typedef struct { 492 /* 493 * QTEST_LOG=1 may override this. When QTEST_LOG=1, we always dump errors 494 * unconditionally, because it means the user would like to be verbose. 495 */ 496 bool hide_stderr; 497 bool use_shmem; 498 /* only launch the target process */ 499 bool only_target; 500 /* Use dirty ring if true; dirty logging otherwise */ 501 bool use_dirty_ring; 502 const char *opts_source; 503 const char *opts_target; 504 } MigrateStart; 505 506 /* 507 * A hook that runs after the src and dst QEMUs have been 508 * created, but before the migration is started. This can 509 * be used to set migration parameters and capabilities. 510 * 511 * Returns: NULL, or a pointer to opaque state to be 512 * later passed to the TestMigrateFinishHook 513 */ 514 typedef void * (*TestMigrateStartHook)(QTestState *from, 515 QTestState *to); 516 517 /* 518 * A hook that runs after the migration has finished, 519 * regardless of whether it succeeded or failed, but 520 * before QEMU has terminated (unless it self-terminated 521 * due to migration error) 522 * 523 * @opaque is a pointer to state previously returned 524 * by the TestMigrateStartHook if any, or NULL. 525 */ 526 typedef void (*TestMigrateFinishHook)(QTestState *from, 527 QTestState *to, 528 void *opaque); 529 530 typedef struct { 531 /* Optional: fine tune start parameters */ 532 MigrateStart start; 533 534 /* Required: the URI for the dst QEMU to listen on */ 535 const char *listen_uri; 536 537 /* 538 * Optional: the URI for the src QEMU to connect to 539 * If NULL, then it will query the dst QEMU for its actual 540 * listening address and use that as the connect address. 541 * This allows for dynamically picking a free TCP port. 542 */ 543 const char *connect_uri; 544 545 /* Optional: callback to run at start to set migration parameters */ 546 TestMigrateStartHook start_hook; 547 /* Optional: callback to run at finish to cleanup */ 548 TestMigrateFinishHook finish_hook; 549 550 /* 551 * Optional: normally we expect the migration process to complete. 552 * 553 * There can be a variety of reasons and stages in which failure 554 * can happen during tests. 555 * 556 * If a failure is expected to happen at time of establishing 557 * the connection, then MIG_TEST_FAIL will indicate that the dst 558 * QEMU is expected to stay running and accept future migration 559 * connections. 560 * 561 * If a failure is expected to happen while processing the 562 * migration stream, then MIG_TEST_FAIL_DEST_QUIT_ERR will indicate 563 * that the dst QEMU is expected to quit with non-zero exit status 564 */ 565 enum { 566 /* This test should succeed, the default */ 567 MIG_TEST_SUCCEED = 0, 568 /* This test should fail, dest qemu should keep alive */ 569 MIG_TEST_FAIL, 570 /* This test should fail, dest qemu should fail with abnormal status */ 571 MIG_TEST_FAIL_DEST_QUIT_ERR, 572 } result; 573 574 /* Optional: set number of migration passes to wait for */ 575 unsigned int iterations; 576 577 /* Postcopy specific fields */ 578 void *postcopy_data; 579 bool postcopy_preempt; 580 } MigrateCommon; 581 582 static int test_migrate_start(QTestState **from, QTestState **to, 583 const char *uri, MigrateStart *args) 584 { 585 g_autofree gchar *arch_source = NULL; 586 g_autofree gchar *arch_target = NULL; 587 g_autofree gchar *cmd_source = NULL; 588 g_autofree gchar *cmd_target = NULL; 589 const gchar *ignore_stderr; 590 g_autofree char *bootpath = NULL; 591 g_autofree char *shmem_opts = NULL; 592 g_autofree char *shmem_path = NULL; 593 const char *arch = qtest_get_arch(); 594 const char *machine_opts = NULL; 595 const char *memory_size; 596 597 if (args->use_shmem) { 598 if (!g_file_test("/dev/shm", G_FILE_TEST_IS_DIR)) { 599 g_test_skip("/dev/shm is not supported"); 600 return -1; 601 } 602 } 603 604 got_stop = false; 605 bootpath = g_strdup_printf("%s/bootsect", tmpfs); 606 if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { 607 /* the assembled x86 boot sector should be exactly one sector large */ 608 assert(sizeof(x86_bootsect) == 512); 609 init_bootfile(bootpath, x86_bootsect, sizeof(x86_bootsect)); 610 memory_size = "150M"; 611 arch_source = g_strdup_printf("-drive file=%s,format=raw", bootpath); 612 arch_target = g_strdup(arch_source); 613 start_address = X86_TEST_MEM_START; 614 end_address = X86_TEST_MEM_END; 615 } else if (g_str_equal(arch, "s390x")) { 616 init_bootfile(bootpath, s390x_elf, sizeof(s390x_elf)); 617 memory_size = "128M"; 618 arch_source = g_strdup_printf("-bios %s", bootpath); 619 arch_target = g_strdup(arch_source); 620 start_address = S390_TEST_MEM_START; 621 end_address = S390_TEST_MEM_END; 622 } else if (strcmp(arch, "ppc64") == 0) { 623 machine_opts = "vsmt=8"; 624 memory_size = "256M"; 625 start_address = PPC_TEST_MEM_START; 626 end_address = PPC_TEST_MEM_END; 627 arch_source = g_strdup_printf("-nodefaults " 628 "-prom-env 'use-nvramrc?=true' -prom-env " 629 "'nvramrc=hex .\" _\" begin %x %x " 630 "do i c@ 1 + i c! 1000 +loop .\" B\" 0 " 631 "until'", end_address, start_address); 632 arch_target = g_strdup(""); 633 } else if (strcmp(arch, "aarch64") == 0) { 634 init_bootfile(bootpath, aarch64_kernel, sizeof(aarch64_kernel)); 635 machine_opts = "virt,gic-version=max"; 636 memory_size = "150M"; 637 arch_source = g_strdup_printf("-cpu max " 638 "-kernel %s", 639 bootpath); 640 arch_target = g_strdup(arch_source); 641 start_address = ARM_TEST_MEM_START; 642 end_address = ARM_TEST_MEM_END; 643 644 g_assert(sizeof(aarch64_kernel) <= ARM_TEST_MAX_KERNEL_SIZE); 645 } else { 646 g_assert_not_reached(); 647 } 648 649 if (!getenv("QTEST_LOG") && args->hide_stderr) { 650 #ifndef _WIN32 651 ignore_stderr = "2>/dev/null"; 652 #else 653 /* 654 * On Windows the QEMU executable is created via CreateProcess() and 655 * IO redirection does not work, so don't bother adding IO redirection 656 * to the command line. 657 */ 658 ignore_stderr = ""; 659 #endif 660 } else { 661 ignore_stderr = ""; 662 } 663 664 if (args->use_shmem) { 665 shmem_path = g_strdup_printf("/dev/shm/qemu-%d", getpid()); 666 shmem_opts = g_strdup_printf( 667 "-object memory-backend-file,id=mem0,size=%s" 668 ",mem-path=%s,share=on -numa node,memdev=mem0", 669 memory_size, shmem_path); 670 } else { 671 shmem_path = NULL; 672 shmem_opts = g_strdup(""); 673 } 674 675 cmd_source = g_strdup_printf("-accel kvm%s -accel tcg%s%s " 676 "-name source,debug-threads=on " 677 "-m %s " 678 "-serial file:%s/src_serial " 679 "%s %s %s %s", 680 args->use_dirty_ring ? 681 ",dirty-ring-size=4096" : "", 682 machine_opts ? " -machine " : "", 683 machine_opts ? machine_opts : "", 684 memory_size, tmpfs, 685 arch_source, shmem_opts, 686 args->opts_source ? args->opts_source : "", 687 ignore_stderr); 688 if (!args->only_target) { 689 *from = qtest_init(cmd_source); 690 } 691 692 cmd_target = g_strdup_printf("-accel kvm%s -accel tcg%s%s " 693 "-name target,debug-threads=on " 694 "-m %s " 695 "-serial file:%s/dest_serial " 696 "-incoming %s " 697 "%s %s %s %s", 698 args->use_dirty_ring ? 699 ",dirty-ring-size=4096" : "", 700 machine_opts ? " -machine " : "", 701 machine_opts ? machine_opts : "", 702 memory_size, tmpfs, uri, 703 arch_target, shmem_opts, 704 args->opts_target ? args->opts_target : "", 705 ignore_stderr); 706 *to = qtest_init(cmd_target); 707 708 /* 709 * Remove shmem file immediately to avoid memory leak in test failed case. 710 * It's valid becase QEMU has already opened this file 711 */ 712 if (args->use_shmem) { 713 unlink(shmem_path); 714 } 715 716 return 0; 717 } 718 719 static void test_migrate_end(QTestState *from, QTestState *to, bool test_dest) 720 { 721 unsigned char dest_byte_a, dest_byte_b, dest_byte_c, dest_byte_d; 722 723 qtest_quit(from); 724 725 if (test_dest) { 726 qtest_memread(to, start_address, &dest_byte_a, 1); 727 728 /* Destination still running, wait for a byte to change */ 729 do { 730 qtest_memread(to, start_address, &dest_byte_b, 1); 731 usleep(1000 * 10); 732 } while (dest_byte_a == dest_byte_b); 733 734 qtest_qmp_discard_response(to, "{ 'execute' : 'stop'}"); 735 736 /* With it stopped, check nothing changes */ 737 qtest_memread(to, start_address, &dest_byte_c, 1); 738 usleep(1000 * 200); 739 qtest_memread(to, start_address, &dest_byte_d, 1); 740 g_assert_cmpint(dest_byte_c, ==, dest_byte_d); 741 742 check_guests_ram(to); 743 } 744 745 qtest_quit(to); 746 747 cleanup("bootsect"); 748 cleanup("migsocket"); 749 cleanup("src_serial"); 750 cleanup("dest_serial"); 751 } 752 753 #ifdef CONFIG_GNUTLS 754 struct TestMigrateTLSPSKData { 755 char *workdir; 756 char *workdiralt; 757 char *pskfile; 758 char *pskfilealt; 759 }; 760 761 static void * 762 test_migrate_tls_psk_start_common(QTestState *from, 763 QTestState *to, 764 bool mismatch) 765 { 766 struct TestMigrateTLSPSKData *data = 767 g_new0(struct TestMigrateTLSPSKData, 1); 768 QDict *rsp; 769 770 data->workdir = g_strdup_printf("%s/tlscredspsk0", tmpfs); 771 data->pskfile = g_strdup_printf("%s/%s", data->workdir, 772 QCRYPTO_TLS_CREDS_PSKFILE); 773 g_mkdir_with_parents(data->workdir, 0700); 774 test_tls_psk_init(data->pskfile); 775 776 if (mismatch) { 777 data->workdiralt = g_strdup_printf("%s/tlscredspskalt0", tmpfs); 778 data->pskfilealt = g_strdup_printf("%s/%s", data->workdiralt, 779 QCRYPTO_TLS_CREDS_PSKFILE); 780 g_mkdir_with_parents(data->workdiralt, 0700); 781 test_tls_psk_init_alt(data->pskfilealt); 782 } 783 784 rsp = wait_command(from, 785 "{ 'execute': 'object-add'," 786 " 'arguments': { 'qom-type': 'tls-creds-psk'," 787 " 'id': 'tlscredspsk0'," 788 " 'endpoint': 'client'," 789 " 'dir': %s," 790 " 'username': 'qemu'} }", 791 data->workdir); 792 qobject_unref(rsp); 793 794 rsp = wait_command(to, 795 "{ 'execute': 'object-add'," 796 " 'arguments': { 'qom-type': 'tls-creds-psk'," 797 " 'id': 'tlscredspsk0'," 798 " 'endpoint': 'server'," 799 " 'dir': %s } }", 800 mismatch ? data->workdiralt : data->workdir); 801 qobject_unref(rsp); 802 803 migrate_set_parameter_str(from, "tls-creds", "tlscredspsk0"); 804 migrate_set_parameter_str(to, "tls-creds", "tlscredspsk0"); 805 806 return data; 807 } 808 809 static void * 810 test_migrate_tls_psk_start_match(QTestState *from, 811 QTestState *to) 812 { 813 return test_migrate_tls_psk_start_common(from, to, false); 814 } 815 816 static void * 817 test_migrate_tls_psk_start_mismatch(QTestState *from, 818 QTestState *to) 819 { 820 return test_migrate_tls_psk_start_common(from, to, true); 821 } 822 823 static void 824 test_migrate_tls_psk_finish(QTestState *from, 825 QTestState *to, 826 void *opaque) 827 { 828 struct TestMigrateTLSPSKData *data = opaque; 829 830 test_tls_psk_cleanup(data->pskfile); 831 if (data->pskfilealt) { 832 test_tls_psk_cleanup(data->pskfilealt); 833 } 834 rmdir(data->workdir); 835 if (data->workdiralt) { 836 rmdir(data->workdiralt); 837 } 838 839 g_free(data->workdiralt); 840 g_free(data->pskfilealt); 841 g_free(data->workdir); 842 g_free(data->pskfile); 843 g_free(data); 844 } 845 846 #ifdef CONFIG_TASN1 847 typedef struct { 848 char *workdir; 849 char *keyfile; 850 char *cacert; 851 char *servercert; 852 char *serverkey; 853 char *clientcert; 854 char *clientkey; 855 } TestMigrateTLSX509Data; 856 857 typedef struct { 858 bool verifyclient; 859 bool clientcert; 860 bool hostileclient; 861 bool authzclient; 862 const char *certhostname; 863 const char *certipaddr; 864 } TestMigrateTLSX509; 865 866 static void * 867 test_migrate_tls_x509_start_common(QTestState *from, 868 QTestState *to, 869 TestMigrateTLSX509 *args) 870 { 871 TestMigrateTLSX509Data *data = g_new0(TestMigrateTLSX509Data, 1); 872 QDict *rsp; 873 874 data->workdir = g_strdup_printf("%s/tlscredsx5090", tmpfs); 875 data->keyfile = g_strdup_printf("%s/key.pem", data->workdir); 876 877 data->cacert = g_strdup_printf("%s/ca-cert.pem", data->workdir); 878 data->serverkey = g_strdup_printf("%s/server-key.pem", data->workdir); 879 data->servercert = g_strdup_printf("%s/server-cert.pem", data->workdir); 880 if (args->clientcert) { 881 data->clientkey = g_strdup_printf("%s/client-key.pem", data->workdir); 882 data->clientcert = g_strdup_printf("%s/client-cert.pem", data->workdir); 883 } 884 885 g_mkdir_with_parents(data->workdir, 0700); 886 887 test_tls_init(data->keyfile); 888 #ifndef _WIN32 889 g_assert(link(data->keyfile, data->serverkey) == 0); 890 #else 891 g_assert(CreateHardLink(data->serverkey, data->keyfile, NULL) != 0); 892 #endif 893 if (args->clientcert) { 894 #ifndef _WIN32 895 g_assert(link(data->keyfile, data->clientkey) == 0); 896 #else 897 g_assert(CreateHardLink(data->clientkey, data->keyfile, NULL) != 0); 898 #endif 899 } 900 901 TLS_ROOT_REQ_SIMPLE(cacertreq, data->cacert); 902 if (args->clientcert) { 903 TLS_CERT_REQ_SIMPLE_CLIENT(servercertreq, cacertreq, 904 args->hostileclient ? 905 QCRYPTO_TLS_TEST_CLIENT_HOSTILE_NAME : 906 QCRYPTO_TLS_TEST_CLIENT_NAME, 907 data->clientcert); 908 } 909 910 TLS_CERT_REQ_SIMPLE_SERVER(clientcertreq, cacertreq, 911 data->servercert, 912 args->certhostname, 913 args->certipaddr); 914 915 rsp = wait_command(from, 916 "{ 'execute': 'object-add'," 917 " 'arguments': { 'qom-type': 'tls-creds-x509'," 918 " 'id': 'tlscredsx509client0'," 919 " 'endpoint': 'client'," 920 " 'dir': %s," 921 " 'sanity-check': true," 922 " 'verify-peer': true} }", 923 data->workdir); 924 qobject_unref(rsp); 925 migrate_set_parameter_str(from, "tls-creds", "tlscredsx509client0"); 926 if (args->certhostname) { 927 migrate_set_parameter_str(from, "tls-hostname", args->certhostname); 928 } 929 930 rsp = wait_command(to, 931 "{ 'execute': 'object-add'," 932 " 'arguments': { 'qom-type': 'tls-creds-x509'," 933 " 'id': 'tlscredsx509server0'," 934 " 'endpoint': 'server'," 935 " 'dir': %s," 936 " 'sanity-check': true," 937 " 'verify-peer': %i} }", 938 data->workdir, args->verifyclient); 939 qobject_unref(rsp); 940 migrate_set_parameter_str(to, "tls-creds", "tlscredsx509server0"); 941 942 if (args->authzclient) { 943 rsp = wait_command(to, 944 "{ 'execute': 'object-add'," 945 " 'arguments': { 'qom-type': 'authz-simple'," 946 " 'id': 'tlsauthz0'," 947 " 'identity': %s} }", 948 "CN=" QCRYPTO_TLS_TEST_CLIENT_NAME); 949 migrate_set_parameter_str(to, "tls-authz", "tlsauthz0"); 950 } 951 952 return data; 953 } 954 955 /* 956 * The normal case: match server's cert hostname against 957 * whatever host we were telling QEMU to connect to (if any) 958 */ 959 static void * 960 test_migrate_tls_x509_start_default_host(QTestState *from, 961 QTestState *to) 962 { 963 TestMigrateTLSX509 args = { 964 .verifyclient = true, 965 .clientcert = true, 966 .certipaddr = "127.0.0.1" 967 }; 968 return test_migrate_tls_x509_start_common(from, to, &args); 969 } 970 971 /* 972 * The unusual case: the server's cert is different from 973 * the address we're telling QEMU to connect to (if any), 974 * so we must give QEMU an explicit hostname to validate 975 */ 976 static void * 977 test_migrate_tls_x509_start_override_host(QTestState *from, 978 QTestState *to) 979 { 980 TestMigrateTLSX509 args = { 981 .verifyclient = true, 982 .clientcert = true, 983 .certhostname = "qemu.org", 984 }; 985 return test_migrate_tls_x509_start_common(from, to, &args); 986 } 987 988 /* 989 * The unusual case: the server's cert is different from 990 * the address we're telling QEMU to connect to, and so we 991 * expect the client to reject the server 992 */ 993 static void * 994 test_migrate_tls_x509_start_mismatch_host(QTestState *from, 995 QTestState *to) 996 { 997 TestMigrateTLSX509 args = { 998 .verifyclient = true, 999 .clientcert = true, 1000 .certipaddr = "10.0.0.1", 1001 }; 1002 return test_migrate_tls_x509_start_common(from, to, &args); 1003 } 1004 1005 static void * 1006 test_migrate_tls_x509_start_friendly_client(QTestState *from, 1007 QTestState *to) 1008 { 1009 TestMigrateTLSX509 args = { 1010 .verifyclient = true, 1011 .clientcert = true, 1012 .authzclient = true, 1013 .certipaddr = "127.0.0.1", 1014 }; 1015 return test_migrate_tls_x509_start_common(from, to, &args); 1016 } 1017 1018 static void * 1019 test_migrate_tls_x509_start_hostile_client(QTestState *from, 1020 QTestState *to) 1021 { 1022 TestMigrateTLSX509 args = { 1023 .verifyclient = true, 1024 .clientcert = true, 1025 .hostileclient = true, 1026 .authzclient = true, 1027 .certipaddr = "127.0.0.1", 1028 }; 1029 return test_migrate_tls_x509_start_common(from, to, &args); 1030 } 1031 1032 /* 1033 * The case with no client certificate presented, 1034 * and no server verification 1035 */ 1036 static void * 1037 test_migrate_tls_x509_start_allow_anon_client(QTestState *from, 1038 QTestState *to) 1039 { 1040 TestMigrateTLSX509 args = { 1041 .certipaddr = "127.0.0.1", 1042 }; 1043 return test_migrate_tls_x509_start_common(from, to, &args); 1044 } 1045 1046 /* 1047 * The case with no client certificate presented, 1048 * and server verification rejecting 1049 */ 1050 static void * 1051 test_migrate_tls_x509_start_reject_anon_client(QTestState *from, 1052 QTestState *to) 1053 { 1054 TestMigrateTLSX509 args = { 1055 .verifyclient = true, 1056 .certipaddr = "127.0.0.1", 1057 }; 1058 return test_migrate_tls_x509_start_common(from, to, &args); 1059 } 1060 1061 static void 1062 test_migrate_tls_x509_finish(QTestState *from, 1063 QTestState *to, 1064 void *opaque) 1065 { 1066 TestMigrateTLSX509Data *data = opaque; 1067 1068 test_tls_cleanup(data->keyfile); 1069 unlink(data->cacert); 1070 unlink(data->servercert); 1071 unlink(data->serverkey); 1072 unlink(data->clientcert); 1073 unlink(data->clientkey); 1074 rmdir(data->workdir); 1075 1076 g_free(data->workdir); 1077 g_free(data->keyfile); 1078 g_free(data); 1079 } 1080 #endif /* CONFIG_TASN1 */ 1081 #endif /* CONFIG_GNUTLS */ 1082 1083 static int migrate_postcopy_prepare(QTestState **from_ptr, 1084 QTestState **to_ptr, 1085 MigrateCommon *args) 1086 { 1087 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1088 QTestState *from, *to; 1089 1090 if (test_migrate_start(&from, &to, uri, &args->start)) { 1091 return -1; 1092 } 1093 1094 if (args->start_hook) { 1095 args->postcopy_data = args->start_hook(from, to); 1096 } 1097 1098 migrate_set_capability(from, "postcopy-ram", true); 1099 migrate_set_capability(to, "postcopy-ram", true); 1100 migrate_set_capability(to, "postcopy-blocktime", true); 1101 1102 if (args->postcopy_preempt) { 1103 migrate_set_capability(from, "postcopy-preempt", true); 1104 migrate_set_capability(to, "postcopy-preempt", true); 1105 } 1106 1107 migrate_ensure_non_converge(from); 1108 1109 /* Wait for the first serial output from the source */ 1110 wait_for_serial("src_serial"); 1111 1112 migrate_qmp(from, uri, "{}"); 1113 1114 wait_for_migration_pass(from); 1115 1116 *from_ptr = from; 1117 *to_ptr = to; 1118 1119 return 0; 1120 } 1121 1122 static void migrate_postcopy_complete(QTestState *from, QTestState *to, 1123 MigrateCommon *args) 1124 { 1125 wait_for_migration_complete(from); 1126 1127 /* Make sure we get at least one "B" on destination */ 1128 wait_for_serial("dest_serial"); 1129 1130 if (uffd_feature_thread_id) { 1131 read_blocktime(to); 1132 } 1133 1134 if (args->finish_hook) { 1135 args->finish_hook(from, to, args->postcopy_data); 1136 args->postcopy_data = NULL; 1137 } 1138 1139 test_migrate_end(from, to, true); 1140 } 1141 1142 static void test_postcopy_common(MigrateCommon *args) 1143 { 1144 QTestState *from, *to; 1145 1146 if (migrate_postcopy_prepare(&from, &to, args)) { 1147 return; 1148 } 1149 migrate_postcopy_start(from, to); 1150 migrate_postcopy_complete(from, to, args); 1151 } 1152 1153 static void test_postcopy(void) 1154 { 1155 MigrateCommon args = { }; 1156 1157 test_postcopy_common(&args); 1158 } 1159 1160 static void test_postcopy_preempt(void) 1161 { 1162 MigrateCommon args = { 1163 .postcopy_preempt = true, 1164 }; 1165 1166 test_postcopy_common(&args); 1167 } 1168 1169 #ifdef CONFIG_GNUTLS 1170 static void test_postcopy_tls_psk(void) 1171 { 1172 MigrateCommon args = { 1173 .start_hook = test_migrate_tls_psk_start_match, 1174 .finish_hook = test_migrate_tls_psk_finish, 1175 }; 1176 1177 test_postcopy_common(&args); 1178 } 1179 1180 static void test_postcopy_preempt_tls_psk(void) 1181 { 1182 MigrateCommon args = { 1183 .postcopy_preempt = true, 1184 .start_hook = test_migrate_tls_psk_start_match, 1185 .finish_hook = test_migrate_tls_psk_finish, 1186 }; 1187 1188 test_postcopy_common(&args); 1189 } 1190 #endif 1191 1192 static void test_postcopy_recovery_common(MigrateCommon *args) 1193 { 1194 QTestState *from, *to; 1195 g_autofree char *uri = NULL; 1196 1197 /* Always hide errors for postcopy recover tests since they're expected */ 1198 args->start.hide_stderr = true; 1199 1200 if (migrate_postcopy_prepare(&from, &to, args)) { 1201 return; 1202 } 1203 1204 /* Turn postcopy speed down, 4K/s is slow enough on any machines */ 1205 migrate_set_parameter_int(from, "max-postcopy-bandwidth", 4096); 1206 1207 /* Now we start the postcopy */ 1208 migrate_postcopy_start(from, to); 1209 1210 /* 1211 * Wait until postcopy is really started; we can only run the 1212 * migrate-pause command during a postcopy 1213 */ 1214 wait_for_migration_status(from, "postcopy-active", NULL); 1215 1216 /* 1217 * Manually stop the postcopy migration. This emulates a network 1218 * failure with the migration socket 1219 */ 1220 migrate_pause(from); 1221 1222 /* 1223 * Wait for destination side to reach postcopy-paused state. The 1224 * migrate-recover command can only succeed if destination machine 1225 * is in the paused state 1226 */ 1227 wait_for_migration_status(to, "postcopy-paused", 1228 (const char * []) { "failed", "active", 1229 "completed", NULL }); 1230 1231 /* 1232 * Create a new socket to emulate a new channel that is different 1233 * from the broken migration channel; tell the destination to 1234 * listen to the new port 1235 */ 1236 uri = g_strdup_printf("unix:%s/migsocket-recover", tmpfs); 1237 migrate_recover(to, uri); 1238 1239 /* 1240 * Try to rebuild the migration channel using the resume flag and 1241 * the newly created channel 1242 */ 1243 wait_for_migration_status(from, "postcopy-paused", 1244 (const char * []) { "failed", "active", 1245 "completed", NULL }); 1246 migrate_qmp(from, uri, "{'resume': true}"); 1247 1248 /* Restore the postcopy bandwidth to unlimited */ 1249 migrate_set_parameter_int(from, "max-postcopy-bandwidth", 0); 1250 1251 migrate_postcopy_complete(from, to, args); 1252 } 1253 1254 static void test_postcopy_recovery(void) 1255 { 1256 MigrateCommon args = { }; 1257 1258 test_postcopy_recovery_common(&args); 1259 } 1260 1261 #ifdef CONFIG_GNUTLS 1262 static void test_postcopy_recovery_tls_psk(void) 1263 { 1264 MigrateCommon args = { 1265 .start_hook = test_migrate_tls_psk_start_match, 1266 .finish_hook = test_migrate_tls_psk_finish, 1267 }; 1268 1269 test_postcopy_recovery_common(&args); 1270 } 1271 #endif 1272 1273 static void test_postcopy_preempt_recovery(void) 1274 { 1275 MigrateCommon args = { 1276 .postcopy_preempt = true, 1277 }; 1278 1279 test_postcopy_recovery_common(&args); 1280 } 1281 1282 #ifdef CONFIG_GNUTLS 1283 /* This contains preempt+recovery+tls test altogether */ 1284 static void test_postcopy_preempt_all(void) 1285 { 1286 MigrateCommon args = { 1287 .postcopy_preempt = true, 1288 .start_hook = test_migrate_tls_psk_start_match, 1289 .finish_hook = test_migrate_tls_psk_finish, 1290 }; 1291 1292 test_postcopy_recovery_common(&args); 1293 } 1294 #endif 1295 1296 static void test_baddest(void) 1297 { 1298 MigrateStart args = { 1299 .hide_stderr = true 1300 }; 1301 QTestState *from, *to; 1302 1303 if (test_migrate_start(&from, &to, "tcp:127.0.0.1:0", &args)) { 1304 return; 1305 } 1306 migrate_qmp(from, "tcp:127.0.0.1:0", "{}"); 1307 wait_for_migration_fail(from, false); 1308 test_migrate_end(from, to, false); 1309 } 1310 1311 static void test_precopy_common(MigrateCommon *args) 1312 { 1313 QTestState *from, *to; 1314 void *data_hook = NULL; 1315 1316 if (test_migrate_start(&from, &to, args->listen_uri, &args->start)) { 1317 return; 1318 } 1319 1320 migrate_ensure_non_converge(from); 1321 1322 if (args->start_hook) { 1323 data_hook = args->start_hook(from, to); 1324 } 1325 1326 /* Wait for the first serial output from the source */ 1327 if (args->result == MIG_TEST_SUCCEED) { 1328 wait_for_serial("src_serial"); 1329 } 1330 1331 if (!args->connect_uri) { 1332 g_autofree char *local_connect_uri = 1333 migrate_get_socket_address(to, "socket-address"); 1334 migrate_qmp(from, local_connect_uri, "{}"); 1335 } else { 1336 migrate_qmp(from, args->connect_uri, "{}"); 1337 } 1338 1339 1340 if (args->result != MIG_TEST_SUCCEED) { 1341 bool allow_active = args->result == MIG_TEST_FAIL; 1342 wait_for_migration_fail(from, allow_active); 1343 1344 if (args->result == MIG_TEST_FAIL_DEST_QUIT_ERR) { 1345 qtest_set_expected_status(to, EXIT_FAILURE); 1346 } 1347 } else { 1348 if (args->iterations) { 1349 while (args->iterations--) { 1350 wait_for_migration_pass(from); 1351 } 1352 } else { 1353 wait_for_migration_pass(from); 1354 } 1355 1356 migrate_ensure_converge(from); 1357 1358 /* We do this first, as it has a timeout to stop us 1359 * hanging forever if migration didn't converge */ 1360 wait_for_migration_complete(from); 1361 1362 if (!got_stop) { 1363 qtest_qmp_eventwait(from, "STOP"); 1364 } 1365 1366 qtest_qmp_eventwait(to, "RESUME"); 1367 1368 wait_for_serial("dest_serial"); 1369 } 1370 1371 if (args->finish_hook) { 1372 args->finish_hook(from, to, data_hook); 1373 } 1374 1375 test_migrate_end(from, to, args->result == MIG_TEST_SUCCEED); 1376 } 1377 1378 static void test_precopy_unix_plain(void) 1379 { 1380 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1381 MigrateCommon args = { 1382 .listen_uri = uri, 1383 .connect_uri = uri, 1384 }; 1385 1386 test_precopy_common(&args); 1387 } 1388 1389 1390 static void test_precopy_unix_dirty_ring(void) 1391 { 1392 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1393 MigrateCommon args = { 1394 .start = { 1395 .use_dirty_ring = true, 1396 }, 1397 .listen_uri = uri, 1398 .connect_uri = uri, 1399 }; 1400 1401 test_precopy_common(&args); 1402 } 1403 1404 #ifdef CONFIG_GNUTLS 1405 #ifndef _WIN32 1406 static void test_precopy_unix_tls_psk(void) 1407 { 1408 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1409 MigrateCommon args = { 1410 .connect_uri = uri, 1411 .listen_uri = uri, 1412 .start_hook = test_migrate_tls_psk_start_match, 1413 .finish_hook = test_migrate_tls_psk_finish, 1414 }; 1415 1416 test_precopy_common(&args); 1417 } 1418 #endif /* _WIN32 */ 1419 1420 #ifdef CONFIG_TASN1 1421 static void test_precopy_unix_tls_x509_default_host(void) 1422 { 1423 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1424 MigrateCommon args = { 1425 .start = { 1426 .hide_stderr = true, 1427 }, 1428 .connect_uri = uri, 1429 .listen_uri = uri, 1430 .start_hook = test_migrate_tls_x509_start_default_host, 1431 .finish_hook = test_migrate_tls_x509_finish, 1432 .result = MIG_TEST_FAIL_DEST_QUIT_ERR, 1433 }; 1434 1435 test_precopy_common(&args); 1436 } 1437 1438 static void test_precopy_unix_tls_x509_override_host(void) 1439 { 1440 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1441 MigrateCommon args = { 1442 .connect_uri = uri, 1443 .listen_uri = uri, 1444 .start_hook = test_migrate_tls_x509_start_override_host, 1445 .finish_hook = test_migrate_tls_x509_finish, 1446 }; 1447 1448 test_precopy_common(&args); 1449 } 1450 #endif /* CONFIG_TASN1 */ 1451 #endif /* CONFIG_GNUTLS */ 1452 1453 #if 0 1454 /* Currently upset on aarch64 TCG */ 1455 static void test_ignore_shared(void) 1456 { 1457 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1458 QTestState *from, *to; 1459 1460 if (test_migrate_start(&from, &to, uri, false, true, NULL, NULL)) { 1461 return; 1462 } 1463 1464 migrate_set_capability(from, "x-ignore-shared", true); 1465 migrate_set_capability(to, "x-ignore-shared", true); 1466 1467 /* Wait for the first serial output from the source */ 1468 wait_for_serial("src_serial"); 1469 1470 migrate_qmp(from, uri, "{}"); 1471 1472 wait_for_migration_pass(from); 1473 1474 if (!got_stop) { 1475 qtest_qmp_eventwait(from, "STOP"); 1476 } 1477 1478 qtest_qmp_eventwait(to, "RESUME"); 1479 1480 wait_for_serial("dest_serial"); 1481 wait_for_migration_complete(from); 1482 1483 /* Check whether shared RAM has been really skipped */ 1484 g_assert_cmpint(read_ram_property_int(from, "transferred"), <, 1024 * 1024); 1485 1486 test_migrate_end(from, to, true); 1487 } 1488 #endif 1489 1490 static void * 1491 test_migrate_xbzrle_start(QTestState *from, 1492 QTestState *to) 1493 { 1494 migrate_set_parameter_int(from, "xbzrle-cache-size", 33554432); 1495 1496 migrate_set_capability(from, "xbzrle", true); 1497 migrate_set_capability(to, "xbzrle", true); 1498 1499 return NULL; 1500 } 1501 1502 static void test_precopy_unix_xbzrle(void) 1503 { 1504 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1505 MigrateCommon args = { 1506 .connect_uri = uri, 1507 .listen_uri = uri, 1508 1509 .start_hook = test_migrate_xbzrle_start, 1510 1511 .iterations = 2, 1512 }; 1513 1514 test_precopy_common(&args); 1515 } 1516 1517 static void test_precopy_tcp_plain(void) 1518 { 1519 MigrateCommon args = { 1520 .listen_uri = "tcp:127.0.0.1:0", 1521 }; 1522 1523 test_precopy_common(&args); 1524 } 1525 1526 #ifdef CONFIG_GNUTLS 1527 #ifndef _WIN32 1528 static void test_precopy_tcp_tls_psk_match(void) 1529 { 1530 MigrateCommon args = { 1531 .listen_uri = "tcp:127.0.0.1:0", 1532 .start_hook = test_migrate_tls_psk_start_match, 1533 .finish_hook = test_migrate_tls_psk_finish, 1534 }; 1535 1536 test_precopy_common(&args); 1537 } 1538 #endif /* _WIN32 */ 1539 1540 static void test_precopy_tcp_tls_psk_mismatch(void) 1541 { 1542 MigrateCommon args = { 1543 .start = { 1544 .hide_stderr = true, 1545 }, 1546 .listen_uri = "tcp:127.0.0.1:0", 1547 .start_hook = test_migrate_tls_psk_start_mismatch, 1548 .finish_hook = test_migrate_tls_psk_finish, 1549 .result = MIG_TEST_FAIL, 1550 }; 1551 1552 test_precopy_common(&args); 1553 } 1554 1555 #ifdef CONFIG_TASN1 1556 static void test_precopy_tcp_tls_x509_default_host(void) 1557 { 1558 MigrateCommon args = { 1559 .listen_uri = "tcp:127.0.0.1:0", 1560 .start_hook = test_migrate_tls_x509_start_default_host, 1561 .finish_hook = test_migrate_tls_x509_finish, 1562 }; 1563 1564 test_precopy_common(&args); 1565 } 1566 1567 static void test_precopy_tcp_tls_x509_override_host(void) 1568 { 1569 MigrateCommon args = { 1570 .listen_uri = "tcp:127.0.0.1:0", 1571 .start_hook = test_migrate_tls_x509_start_override_host, 1572 .finish_hook = test_migrate_tls_x509_finish, 1573 }; 1574 1575 test_precopy_common(&args); 1576 } 1577 1578 static void test_precopy_tcp_tls_x509_mismatch_host(void) 1579 { 1580 MigrateCommon args = { 1581 .start = { 1582 .hide_stderr = true, 1583 }, 1584 .listen_uri = "tcp:127.0.0.1:0", 1585 .start_hook = test_migrate_tls_x509_start_mismatch_host, 1586 .finish_hook = test_migrate_tls_x509_finish, 1587 .result = MIG_TEST_FAIL_DEST_QUIT_ERR, 1588 }; 1589 1590 test_precopy_common(&args); 1591 } 1592 1593 static void test_precopy_tcp_tls_x509_friendly_client(void) 1594 { 1595 MigrateCommon args = { 1596 .listen_uri = "tcp:127.0.0.1:0", 1597 .start_hook = test_migrate_tls_x509_start_friendly_client, 1598 .finish_hook = test_migrate_tls_x509_finish, 1599 }; 1600 1601 test_precopy_common(&args); 1602 } 1603 1604 static void test_precopy_tcp_tls_x509_hostile_client(void) 1605 { 1606 MigrateCommon args = { 1607 .start = { 1608 .hide_stderr = true, 1609 }, 1610 .listen_uri = "tcp:127.0.0.1:0", 1611 .start_hook = test_migrate_tls_x509_start_hostile_client, 1612 .finish_hook = test_migrate_tls_x509_finish, 1613 .result = MIG_TEST_FAIL, 1614 }; 1615 1616 test_precopy_common(&args); 1617 } 1618 1619 static void test_precopy_tcp_tls_x509_allow_anon_client(void) 1620 { 1621 MigrateCommon args = { 1622 .listen_uri = "tcp:127.0.0.1:0", 1623 .start_hook = test_migrate_tls_x509_start_allow_anon_client, 1624 .finish_hook = test_migrate_tls_x509_finish, 1625 }; 1626 1627 test_precopy_common(&args); 1628 } 1629 1630 static void test_precopy_tcp_tls_x509_reject_anon_client(void) 1631 { 1632 MigrateCommon args = { 1633 .start = { 1634 .hide_stderr = true, 1635 }, 1636 .listen_uri = "tcp:127.0.0.1:0", 1637 .start_hook = test_migrate_tls_x509_start_reject_anon_client, 1638 .finish_hook = test_migrate_tls_x509_finish, 1639 .result = MIG_TEST_FAIL, 1640 }; 1641 1642 test_precopy_common(&args); 1643 } 1644 #endif /* CONFIG_TASN1 */ 1645 #endif /* CONFIG_GNUTLS */ 1646 1647 #ifndef _WIN32 1648 static void *test_migrate_fd_start_hook(QTestState *from, 1649 QTestState *to) 1650 { 1651 QDict *rsp; 1652 int ret; 1653 int pair[2]; 1654 1655 /* Create two connected sockets for migration */ 1656 ret = socketpair(PF_LOCAL, SOCK_STREAM, 0, pair); 1657 g_assert_cmpint(ret, ==, 0); 1658 1659 /* Send the 1st socket to the target */ 1660 rsp = wait_command_fd(to, pair[0], 1661 "{ 'execute': 'getfd'," 1662 " 'arguments': { 'fdname': 'fd-mig' }}"); 1663 qobject_unref(rsp); 1664 close(pair[0]); 1665 1666 /* Start incoming migration from the 1st socket */ 1667 rsp = wait_command(to, "{ 'execute': 'migrate-incoming'," 1668 " 'arguments': { 'uri': 'fd:fd-mig' }}"); 1669 qobject_unref(rsp); 1670 1671 /* Send the 2nd socket to the target */ 1672 rsp = wait_command_fd(from, pair[1], 1673 "{ 'execute': 'getfd'," 1674 " 'arguments': { 'fdname': 'fd-mig' }}"); 1675 qobject_unref(rsp); 1676 close(pair[1]); 1677 1678 return NULL; 1679 } 1680 1681 static void test_migrate_fd_finish_hook(QTestState *from, 1682 QTestState *to, 1683 void *opaque) 1684 { 1685 QDict *rsp; 1686 const char *error_desc; 1687 1688 /* Test closing fds */ 1689 /* We assume, that QEMU removes named fd from its list, 1690 * so this should fail */ 1691 rsp = qtest_qmp(from, "{ 'execute': 'closefd'," 1692 " 'arguments': { 'fdname': 'fd-mig' }}"); 1693 g_assert_true(qdict_haskey(rsp, "error")); 1694 error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc"); 1695 g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found"); 1696 qobject_unref(rsp); 1697 1698 rsp = qtest_qmp(to, "{ 'execute': 'closefd'," 1699 " 'arguments': { 'fdname': 'fd-mig' }}"); 1700 g_assert_true(qdict_haskey(rsp, "error")); 1701 error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc"); 1702 g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found"); 1703 qobject_unref(rsp); 1704 } 1705 1706 static void test_migrate_fd_proto(void) 1707 { 1708 MigrateCommon args = { 1709 .listen_uri = "defer", 1710 .connect_uri = "fd:fd-mig", 1711 .start_hook = test_migrate_fd_start_hook, 1712 .finish_hook = test_migrate_fd_finish_hook 1713 }; 1714 test_precopy_common(&args); 1715 } 1716 #endif /* _WIN32 */ 1717 1718 static void do_test_validate_uuid(MigrateStart *args, bool should_fail) 1719 { 1720 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1721 QTestState *from, *to; 1722 1723 if (test_migrate_start(&from, &to, uri, args)) { 1724 return; 1725 } 1726 1727 /* 1728 * UUID validation is at the begin of migration. So, the main process of 1729 * migration is not interesting for us here. Thus, set huge downtime for 1730 * very fast migration. 1731 */ 1732 migrate_set_parameter_int(from, "downtime-limit", 1000000); 1733 migrate_set_capability(from, "validate-uuid", true); 1734 1735 /* Wait for the first serial output from the source */ 1736 wait_for_serial("src_serial"); 1737 1738 migrate_qmp(from, uri, "{}"); 1739 1740 if (should_fail) { 1741 qtest_set_expected_status(to, EXIT_FAILURE); 1742 wait_for_migration_fail(from, true); 1743 } else { 1744 wait_for_migration_complete(from); 1745 } 1746 1747 test_migrate_end(from, to, false); 1748 } 1749 1750 static void test_validate_uuid(void) 1751 { 1752 MigrateStart args = { 1753 .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", 1754 .opts_target = "-uuid 11111111-1111-1111-1111-111111111111", 1755 }; 1756 1757 do_test_validate_uuid(&args, false); 1758 } 1759 1760 static void test_validate_uuid_error(void) 1761 { 1762 MigrateStart args = { 1763 .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", 1764 .opts_target = "-uuid 22222222-2222-2222-2222-222222222222", 1765 .hide_stderr = true, 1766 }; 1767 1768 do_test_validate_uuid(&args, true); 1769 } 1770 1771 static void test_validate_uuid_src_not_set(void) 1772 { 1773 MigrateStart args = { 1774 .opts_target = "-uuid 22222222-2222-2222-2222-222222222222", 1775 .hide_stderr = true, 1776 }; 1777 1778 do_test_validate_uuid(&args, false); 1779 } 1780 1781 static void test_validate_uuid_dst_not_set(void) 1782 { 1783 MigrateStart args = { 1784 .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", 1785 .hide_stderr = true, 1786 }; 1787 1788 do_test_validate_uuid(&args, false); 1789 } 1790 1791 static void test_migrate_auto_converge(void) 1792 { 1793 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1794 MigrateStart args = {}; 1795 QTestState *from, *to; 1796 int64_t percentage; 1797 1798 /* 1799 * We want the test to be stable and as fast as possible. 1800 * E.g., with 1Gb/s bandwith migration may pass without throttling, 1801 * so we need to decrease a bandwidth. 1802 */ 1803 const int64_t init_pct = 5, inc_pct = 50, max_pct = 95; 1804 1805 if (test_migrate_start(&from, &to, uri, &args)) { 1806 return; 1807 } 1808 1809 migrate_set_capability(from, "auto-converge", true); 1810 migrate_set_parameter_int(from, "cpu-throttle-initial", init_pct); 1811 migrate_set_parameter_int(from, "cpu-throttle-increment", inc_pct); 1812 migrate_set_parameter_int(from, "max-cpu-throttle", max_pct); 1813 1814 /* 1815 * Set the initial parameters so that the migration could not converge 1816 * without throttling. 1817 */ 1818 migrate_ensure_non_converge(from); 1819 1820 /* To check remaining size after precopy */ 1821 migrate_set_capability(from, "pause-before-switchover", true); 1822 1823 /* Wait for the first serial output from the source */ 1824 wait_for_serial("src_serial"); 1825 1826 migrate_qmp(from, uri, "{}"); 1827 1828 /* Wait for throttling begins */ 1829 percentage = 0; 1830 while (percentage == 0) { 1831 percentage = read_migrate_property_int(from, "cpu-throttle-percentage"); 1832 usleep(100); 1833 g_assert_false(got_stop); 1834 } 1835 /* The first percentage of throttling should be equal to init_pct */ 1836 g_assert_cmpint(percentage, ==, init_pct); 1837 /* Now, when we tested that throttling works, let it converge */ 1838 migrate_ensure_converge(from); 1839 1840 /* 1841 * Wait for pre-switchover status to check last throttle percentage 1842 * and remaining. These values will be zeroed later 1843 */ 1844 wait_for_migration_status(from, "pre-switchover", NULL); 1845 1846 /* The final percentage of throttling shouldn't be greater than max_pct */ 1847 percentage = read_migrate_property_int(from, "cpu-throttle-percentage"); 1848 g_assert_cmpint(percentage, <=, max_pct); 1849 migrate_continue(from, "pre-switchover"); 1850 1851 qtest_qmp_eventwait(to, "RESUME"); 1852 1853 wait_for_serial("dest_serial"); 1854 wait_for_migration_complete(from); 1855 1856 test_migrate_end(from, to, true); 1857 } 1858 1859 static void * 1860 test_migrate_precopy_tcp_multifd_start_common(QTestState *from, 1861 QTestState *to, 1862 const char *method) 1863 { 1864 QDict *rsp; 1865 1866 migrate_set_parameter_int(from, "multifd-channels", 16); 1867 migrate_set_parameter_int(to, "multifd-channels", 16); 1868 1869 migrate_set_parameter_str(from, "multifd-compression", method); 1870 migrate_set_parameter_str(to, "multifd-compression", method); 1871 1872 migrate_set_capability(from, "multifd", true); 1873 migrate_set_capability(to, "multifd", true); 1874 1875 /* Start incoming migration from the 1st socket */ 1876 rsp = wait_command(to, "{ 'execute': 'migrate-incoming'," 1877 " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}"); 1878 qobject_unref(rsp); 1879 1880 return NULL; 1881 } 1882 1883 static void * 1884 test_migrate_precopy_tcp_multifd_start(QTestState *from, 1885 QTestState *to) 1886 { 1887 return test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1888 } 1889 1890 static void * 1891 test_migrate_precopy_tcp_multifd_zlib_start(QTestState *from, 1892 QTestState *to) 1893 { 1894 return test_migrate_precopy_tcp_multifd_start_common(from, to, "zlib"); 1895 } 1896 1897 #ifdef CONFIG_ZSTD 1898 static void * 1899 test_migrate_precopy_tcp_multifd_zstd_start(QTestState *from, 1900 QTestState *to) 1901 { 1902 return test_migrate_precopy_tcp_multifd_start_common(from, to, "zstd"); 1903 } 1904 #endif /* CONFIG_ZSTD */ 1905 1906 static void test_multifd_tcp_none(void) 1907 { 1908 MigrateCommon args = { 1909 .listen_uri = "defer", 1910 .start_hook = test_migrate_precopy_tcp_multifd_start, 1911 }; 1912 test_precopy_common(&args); 1913 } 1914 1915 static void test_multifd_tcp_zlib(void) 1916 { 1917 MigrateCommon args = { 1918 .listen_uri = "defer", 1919 .start_hook = test_migrate_precopy_tcp_multifd_zlib_start, 1920 }; 1921 test_precopy_common(&args); 1922 } 1923 1924 #ifdef CONFIG_ZSTD 1925 static void test_multifd_tcp_zstd(void) 1926 { 1927 MigrateCommon args = { 1928 .listen_uri = "defer", 1929 .start_hook = test_migrate_precopy_tcp_multifd_zstd_start, 1930 }; 1931 test_precopy_common(&args); 1932 } 1933 #endif 1934 1935 #ifdef CONFIG_GNUTLS 1936 #ifndef _WIN32 1937 static void * 1938 test_migrate_multifd_tcp_tls_psk_start_match(QTestState *from, 1939 QTestState *to) 1940 { 1941 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1942 return test_migrate_tls_psk_start_match(from, to); 1943 } 1944 #endif /* _WIN32 */ 1945 1946 static void * 1947 test_migrate_multifd_tcp_tls_psk_start_mismatch(QTestState *from, 1948 QTestState *to) 1949 { 1950 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1951 return test_migrate_tls_psk_start_mismatch(from, to); 1952 } 1953 1954 #ifdef CONFIG_TASN1 1955 static void * 1956 test_migrate_multifd_tls_x509_start_default_host(QTestState *from, 1957 QTestState *to) 1958 { 1959 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1960 return test_migrate_tls_x509_start_default_host(from, to); 1961 } 1962 1963 static void * 1964 test_migrate_multifd_tls_x509_start_override_host(QTestState *from, 1965 QTestState *to) 1966 { 1967 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1968 return test_migrate_tls_x509_start_override_host(from, to); 1969 } 1970 1971 static void * 1972 test_migrate_multifd_tls_x509_start_mismatch_host(QTestState *from, 1973 QTestState *to) 1974 { 1975 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1976 return test_migrate_tls_x509_start_mismatch_host(from, to); 1977 } 1978 1979 static void * 1980 test_migrate_multifd_tls_x509_start_allow_anon_client(QTestState *from, 1981 QTestState *to) 1982 { 1983 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1984 return test_migrate_tls_x509_start_allow_anon_client(from, to); 1985 } 1986 1987 static void * 1988 test_migrate_multifd_tls_x509_start_reject_anon_client(QTestState *from, 1989 QTestState *to) 1990 { 1991 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1992 return test_migrate_tls_x509_start_reject_anon_client(from, to); 1993 } 1994 #endif /* CONFIG_TASN1 */ 1995 1996 #ifndef _WIN32 1997 static void test_multifd_tcp_tls_psk_match(void) 1998 { 1999 MigrateCommon args = { 2000 .listen_uri = "defer", 2001 .start_hook = test_migrate_multifd_tcp_tls_psk_start_match, 2002 .finish_hook = test_migrate_tls_psk_finish, 2003 }; 2004 test_precopy_common(&args); 2005 } 2006 #endif /* _WIN32 */ 2007 2008 static void test_multifd_tcp_tls_psk_mismatch(void) 2009 { 2010 MigrateCommon args = { 2011 .start = { 2012 .hide_stderr = true, 2013 }, 2014 .listen_uri = "defer", 2015 .start_hook = test_migrate_multifd_tcp_tls_psk_start_mismatch, 2016 .finish_hook = test_migrate_tls_psk_finish, 2017 .result = MIG_TEST_FAIL, 2018 }; 2019 test_precopy_common(&args); 2020 } 2021 2022 #ifdef CONFIG_TASN1 2023 static void test_multifd_tcp_tls_x509_default_host(void) 2024 { 2025 MigrateCommon args = { 2026 .listen_uri = "defer", 2027 .start_hook = test_migrate_multifd_tls_x509_start_default_host, 2028 .finish_hook = test_migrate_tls_x509_finish, 2029 }; 2030 test_precopy_common(&args); 2031 } 2032 2033 static void test_multifd_tcp_tls_x509_override_host(void) 2034 { 2035 MigrateCommon args = { 2036 .listen_uri = "defer", 2037 .start_hook = test_migrate_multifd_tls_x509_start_override_host, 2038 .finish_hook = test_migrate_tls_x509_finish, 2039 }; 2040 test_precopy_common(&args); 2041 } 2042 2043 static void test_multifd_tcp_tls_x509_mismatch_host(void) 2044 { 2045 /* 2046 * This has different behaviour to the non-multifd case. 2047 * 2048 * In non-multifd case when client aborts due to mismatched 2049 * cert host, the server has already started trying to load 2050 * migration state, and so it exits with I/O failure. 2051 * 2052 * In multifd case when client aborts due to mismatched 2053 * cert host, the server is still waiting for the other 2054 * multifd connections to arrive so hasn't started trying 2055 * to load migration state, and thus just aborts the migration 2056 * without exiting. 2057 */ 2058 MigrateCommon args = { 2059 .start = { 2060 .hide_stderr = true, 2061 }, 2062 .listen_uri = "defer", 2063 .start_hook = test_migrate_multifd_tls_x509_start_mismatch_host, 2064 .finish_hook = test_migrate_tls_x509_finish, 2065 .result = MIG_TEST_FAIL, 2066 }; 2067 test_precopy_common(&args); 2068 } 2069 2070 static void test_multifd_tcp_tls_x509_allow_anon_client(void) 2071 { 2072 MigrateCommon args = { 2073 .listen_uri = "defer", 2074 .start_hook = test_migrate_multifd_tls_x509_start_allow_anon_client, 2075 .finish_hook = test_migrate_tls_x509_finish, 2076 }; 2077 test_precopy_common(&args); 2078 } 2079 2080 static void test_multifd_tcp_tls_x509_reject_anon_client(void) 2081 { 2082 MigrateCommon args = { 2083 .start = { 2084 .hide_stderr = true, 2085 }, 2086 .listen_uri = "defer", 2087 .start_hook = test_migrate_multifd_tls_x509_start_reject_anon_client, 2088 .finish_hook = test_migrate_tls_x509_finish, 2089 .result = MIG_TEST_FAIL, 2090 }; 2091 test_precopy_common(&args); 2092 } 2093 #endif /* CONFIG_TASN1 */ 2094 #endif /* CONFIG_GNUTLS */ 2095 2096 /* 2097 * This test does: 2098 * source target 2099 * migrate_incoming 2100 * migrate 2101 * migrate_cancel 2102 * launch another target 2103 * migrate 2104 * 2105 * And see that it works 2106 */ 2107 static void test_multifd_tcp_cancel(void) 2108 { 2109 MigrateStart args = { 2110 .hide_stderr = true, 2111 }; 2112 QTestState *from, *to, *to2; 2113 QDict *rsp; 2114 g_autofree char *uri = NULL; 2115 2116 if (test_migrate_start(&from, &to, "defer", &args)) { 2117 return; 2118 } 2119 2120 migrate_ensure_non_converge(from); 2121 2122 migrate_set_parameter_int(from, "multifd-channels", 16); 2123 migrate_set_parameter_int(to, "multifd-channels", 16); 2124 2125 migrate_set_capability(from, "multifd", true); 2126 migrate_set_capability(to, "multifd", true); 2127 2128 /* Start incoming migration from the 1st socket */ 2129 rsp = wait_command(to, "{ 'execute': 'migrate-incoming'," 2130 " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}"); 2131 qobject_unref(rsp); 2132 2133 /* Wait for the first serial output from the source */ 2134 wait_for_serial("src_serial"); 2135 2136 uri = migrate_get_socket_address(to, "socket-address"); 2137 2138 migrate_qmp(from, uri, "{}"); 2139 2140 wait_for_migration_pass(from); 2141 2142 migrate_cancel(from); 2143 2144 /* Make sure QEMU process "to" exited */ 2145 qtest_set_expected_status(to, EXIT_FAILURE); 2146 qtest_wait_qemu(to); 2147 2148 args = (MigrateStart){ 2149 .only_target = true, 2150 }; 2151 2152 if (test_migrate_start(&from, &to2, "defer", &args)) { 2153 return; 2154 } 2155 2156 migrate_set_parameter_int(to2, "multifd-channels", 16); 2157 2158 migrate_set_capability(to2, "multifd", true); 2159 2160 /* Start incoming migration from the 1st socket */ 2161 rsp = wait_command(to2, "{ 'execute': 'migrate-incoming'," 2162 " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}"); 2163 qobject_unref(rsp); 2164 2165 g_free(uri); 2166 uri = migrate_get_socket_address(to2, "socket-address"); 2167 2168 wait_for_migration_status(from, "cancelled", NULL); 2169 2170 migrate_ensure_converge(from); 2171 2172 migrate_qmp(from, uri, "{}"); 2173 2174 wait_for_migration_pass(from); 2175 2176 if (!got_stop) { 2177 qtest_qmp_eventwait(from, "STOP"); 2178 } 2179 qtest_qmp_eventwait(to2, "RESUME"); 2180 2181 wait_for_serial("dest_serial"); 2182 wait_for_migration_complete(from); 2183 test_migrate_end(from, to2, true); 2184 } 2185 2186 static void calc_dirty_rate(QTestState *who, uint64_t calc_time) 2187 { 2188 qobject_unref(qmp_command(who, 2189 "{ 'execute': 'calc-dirty-rate'," 2190 "'arguments': { " 2191 "'calc-time': %ld," 2192 "'mode': 'dirty-ring' }}", 2193 calc_time)); 2194 } 2195 2196 static QDict *query_dirty_rate(QTestState *who) 2197 { 2198 return qmp_command(who, "{ 'execute': 'query-dirty-rate' }"); 2199 } 2200 2201 static void dirtylimit_set_all(QTestState *who, uint64_t dirtyrate) 2202 { 2203 qobject_unref(qmp_command(who, 2204 "{ 'execute': 'set-vcpu-dirty-limit'," 2205 "'arguments': { " 2206 "'dirty-rate': %ld } }", 2207 dirtyrate)); 2208 } 2209 2210 static void cancel_vcpu_dirty_limit(QTestState *who) 2211 { 2212 qobject_unref(qmp_command(who, 2213 "{ 'execute': 'cancel-vcpu-dirty-limit' }")); 2214 } 2215 2216 static QDict *query_vcpu_dirty_limit(QTestState *who) 2217 { 2218 QDict *rsp; 2219 2220 rsp = qtest_qmp(who, "{ 'execute': 'query-vcpu-dirty-limit' }"); 2221 g_assert(!qdict_haskey(rsp, "error")); 2222 g_assert(qdict_haskey(rsp, "return")); 2223 2224 return rsp; 2225 } 2226 2227 static bool calc_dirtyrate_ready(QTestState *who) 2228 { 2229 QDict *rsp_return; 2230 gchar *status; 2231 2232 rsp_return = query_dirty_rate(who); 2233 g_assert(rsp_return); 2234 2235 status = g_strdup(qdict_get_str(rsp_return, "status")); 2236 g_assert(status); 2237 2238 return g_strcmp0(status, "measuring"); 2239 } 2240 2241 static void wait_for_calc_dirtyrate_complete(QTestState *who, 2242 int64_t time_s) 2243 { 2244 int max_try_count = 10000; 2245 usleep(time_s * 1000000); 2246 2247 while (!calc_dirtyrate_ready(who) && max_try_count--) { 2248 usleep(1000); 2249 } 2250 2251 /* 2252 * Set the timeout with 10 s(max_try_count * 1000us), 2253 * if dirtyrate measurement not complete, fail test. 2254 */ 2255 g_assert_cmpint(max_try_count, !=, 0); 2256 } 2257 2258 static int64_t get_dirty_rate(QTestState *who) 2259 { 2260 QDict *rsp_return; 2261 gchar *status; 2262 QList *rates; 2263 const QListEntry *entry; 2264 QDict *rate; 2265 int64_t dirtyrate; 2266 2267 rsp_return = query_dirty_rate(who); 2268 g_assert(rsp_return); 2269 2270 status = g_strdup(qdict_get_str(rsp_return, "status")); 2271 g_assert(status); 2272 g_assert_cmpstr(status, ==, "measured"); 2273 2274 rates = qdict_get_qlist(rsp_return, "vcpu-dirty-rate"); 2275 g_assert(rates && !qlist_empty(rates)); 2276 2277 entry = qlist_first(rates); 2278 g_assert(entry); 2279 2280 rate = qobject_to(QDict, qlist_entry_obj(entry)); 2281 g_assert(rate); 2282 2283 dirtyrate = qdict_get_try_int(rate, "dirty-rate", -1); 2284 2285 qobject_unref(rsp_return); 2286 return dirtyrate; 2287 } 2288 2289 static int64_t get_limit_rate(QTestState *who) 2290 { 2291 QDict *rsp_return; 2292 QList *rates; 2293 const QListEntry *entry; 2294 QDict *rate; 2295 int64_t dirtyrate; 2296 2297 rsp_return = query_vcpu_dirty_limit(who); 2298 g_assert(rsp_return); 2299 2300 rates = qdict_get_qlist(rsp_return, "return"); 2301 g_assert(rates && !qlist_empty(rates)); 2302 2303 entry = qlist_first(rates); 2304 g_assert(entry); 2305 2306 rate = qobject_to(QDict, qlist_entry_obj(entry)); 2307 g_assert(rate); 2308 2309 dirtyrate = qdict_get_try_int(rate, "limit-rate", -1); 2310 2311 qobject_unref(rsp_return); 2312 return dirtyrate; 2313 } 2314 2315 static QTestState *dirtylimit_start_vm(void) 2316 { 2317 QTestState *vm = NULL; 2318 g_autofree gchar *cmd = NULL; 2319 const char *arch = qtest_get_arch(); 2320 g_autofree char *bootpath = NULL; 2321 2322 assert((strcmp(arch, "x86_64") == 0)); 2323 bootpath = g_strdup_printf("%s/bootsect", tmpfs); 2324 assert(sizeof(x86_bootsect) == 512); 2325 init_bootfile(bootpath, x86_bootsect, sizeof(x86_bootsect)); 2326 2327 cmd = g_strdup_printf("-accel kvm,dirty-ring-size=4096 " 2328 "-name dirtylimit-test,debug-threads=on " 2329 "-m 150M -smp 1 " 2330 "-serial file:%s/vm_serial " 2331 "-drive file=%s,format=raw ", 2332 tmpfs, bootpath); 2333 2334 vm = qtest_init(cmd); 2335 return vm; 2336 } 2337 2338 static void dirtylimit_stop_vm(QTestState *vm) 2339 { 2340 qtest_quit(vm); 2341 cleanup("bootsect"); 2342 cleanup("vm_serial"); 2343 } 2344 2345 static void test_vcpu_dirty_limit(void) 2346 { 2347 QTestState *vm; 2348 int64_t origin_rate; 2349 int64_t quota_rate; 2350 int64_t rate ; 2351 int max_try_count = 20; 2352 int hit = 0; 2353 2354 /* Start vm for vcpu dirtylimit test */ 2355 vm = dirtylimit_start_vm(); 2356 2357 /* Wait for the first serial output from the vm*/ 2358 wait_for_serial("vm_serial"); 2359 2360 /* Do dirtyrate measurement with calc time equals 1s */ 2361 calc_dirty_rate(vm, 1); 2362 2363 /* Sleep calc time and wait for calc dirtyrate complete */ 2364 wait_for_calc_dirtyrate_complete(vm, 1); 2365 2366 /* Query original dirty page rate */ 2367 origin_rate = get_dirty_rate(vm); 2368 2369 /* VM booted from bootsect should dirty memory steadily */ 2370 assert(origin_rate != 0); 2371 2372 /* Setup quota dirty page rate at half of origin */ 2373 quota_rate = origin_rate / 2; 2374 2375 /* Set dirtylimit */ 2376 dirtylimit_set_all(vm, quota_rate); 2377 2378 /* 2379 * Check if set-vcpu-dirty-limit and query-vcpu-dirty-limit 2380 * works literally 2381 */ 2382 g_assert_cmpint(quota_rate, ==, get_limit_rate(vm)); 2383 2384 /* Sleep a bit to check if it take effect */ 2385 usleep(2000000); 2386 2387 /* 2388 * Check if dirtylimit take effect realistically, set the 2389 * timeout with 20 s(max_try_count * 1s), if dirtylimit 2390 * doesn't take effect, fail test. 2391 */ 2392 while (--max_try_count) { 2393 calc_dirty_rate(vm, 1); 2394 wait_for_calc_dirtyrate_complete(vm, 1); 2395 rate = get_dirty_rate(vm); 2396 2397 /* 2398 * Assume hitting if current rate is less 2399 * than quota rate (within accepting error) 2400 */ 2401 if (rate < (quota_rate + DIRTYLIMIT_TOLERANCE_RANGE)) { 2402 hit = 1; 2403 break; 2404 } 2405 } 2406 2407 g_assert_cmpint(hit, ==, 1); 2408 2409 hit = 0; 2410 max_try_count = 20; 2411 2412 /* Check if dirtylimit cancellation take effect */ 2413 cancel_vcpu_dirty_limit(vm); 2414 while (--max_try_count) { 2415 calc_dirty_rate(vm, 1); 2416 wait_for_calc_dirtyrate_complete(vm, 1); 2417 rate = get_dirty_rate(vm); 2418 2419 /* 2420 * Assume dirtylimit be canceled if current rate is 2421 * greater than quota rate (within accepting error) 2422 */ 2423 if (rate > (quota_rate + DIRTYLIMIT_TOLERANCE_RANGE)) { 2424 hit = 1; 2425 break; 2426 } 2427 } 2428 2429 g_assert_cmpint(hit, ==, 1); 2430 dirtylimit_stop_vm(vm); 2431 } 2432 2433 static bool kvm_dirty_ring_supported(void) 2434 { 2435 #if defined(__linux__) && defined(HOST_X86_64) 2436 int ret, kvm_fd = open("/dev/kvm", O_RDONLY); 2437 2438 if (kvm_fd < 0) { 2439 return false; 2440 } 2441 2442 ret = ioctl(kvm_fd, KVM_CHECK_EXTENSION, KVM_CAP_DIRTY_LOG_RING); 2443 close(kvm_fd); 2444 2445 /* We test with 4096 slots */ 2446 if (ret < 4096) { 2447 return false; 2448 } 2449 2450 return true; 2451 #else 2452 return false; 2453 #endif 2454 } 2455 2456 int main(int argc, char **argv) 2457 { 2458 const bool has_kvm = qtest_has_accel("kvm"); 2459 const bool has_uffd = ufd_version_check(); 2460 const char *arch = qtest_get_arch(); 2461 g_autoptr(GError) err = NULL; 2462 int ret; 2463 2464 g_test_init(&argc, &argv, NULL); 2465 2466 /* 2467 * On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG 2468 * is touchy due to race conditions on dirty bits (especially on PPC for 2469 * some reason) 2470 */ 2471 if (g_str_equal(arch, "ppc64") && 2472 (!has_kvm || access("/sys/module/kvm_hv", F_OK))) { 2473 g_test_message("Skipping test: kvm_hv not available"); 2474 return g_test_run(); 2475 } 2476 2477 /* 2478 * Similar to ppc64, s390x seems to be touchy with TCG, so disable it 2479 * there until the problems are resolved 2480 */ 2481 if (g_str_equal(arch, "s390x") && !has_kvm) { 2482 g_test_message("Skipping test: s390x host with KVM is required"); 2483 return g_test_run(); 2484 } 2485 2486 tmpfs = g_dir_make_tmp("migration-test-XXXXXX", &err); 2487 if (!tmpfs) { 2488 g_test_message("Can't create temporary directory in %s: %s", 2489 g_get_tmp_dir(), err->message); 2490 } 2491 g_assert(tmpfs); 2492 2493 module_call_init(MODULE_INIT_QOM); 2494 2495 if (has_uffd) { 2496 qtest_add_func("/migration/postcopy/plain", test_postcopy); 2497 qtest_add_func("/migration/postcopy/recovery/plain", 2498 test_postcopy_recovery); 2499 qtest_add_func("/migration/postcopy/preempt/plain", test_postcopy_preempt); 2500 qtest_add_func("/migration/postcopy/preempt/recovery/plain", 2501 test_postcopy_preempt_recovery); 2502 } 2503 2504 qtest_add_func("/migration/bad_dest", test_baddest); 2505 qtest_add_func("/migration/precopy/unix/plain", test_precopy_unix_plain); 2506 qtest_add_func("/migration/precopy/unix/xbzrle", test_precopy_unix_xbzrle); 2507 #ifdef CONFIG_GNUTLS 2508 #ifndef _WIN32 2509 qtest_add_func("/migration/precopy/unix/tls/psk", 2510 test_precopy_unix_tls_psk); 2511 #endif 2512 2513 if (has_uffd) { 2514 /* 2515 * NOTE: psk test is enough for postcopy, as other types of TLS 2516 * channels are tested under precopy. Here what we want to test is the 2517 * general postcopy path that has TLS channel enabled. 2518 */ 2519 qtest_add_func("/migration/postcopy/tls/psk", test_postcopy_tls_psk); 2520 qtest_add_func("/migration/postcopy/recovery/tls/psk", 2521 test_postcopy_recovery_tls_psk); 2522 qtest_add_func("/migration/postcopy/preempt/tls/psk", 2523 test_postcopy_preempt_tls_psk); 2524 qtest_add_func("/migration/postcopy/preempt/recovery/tls/psk", 2525 test_postcopy_preempt_all); 2526 } 2527 #ifdef CONFIG_TASN1 2528 qtest_add_func("/migration/precopy/unix/tls/x509/default-host", 2529 test_precopy_unix_tls_x509_default_host); 2530 qtest_add_func("/migration/precopy/unix/tls/x509/override-host", 2531 test_precopy_unix_tls_x509_override_host); 2532 #endif /* CONFIG_TASN1 */ 2533 #endif /* CONFIG_GNUTLS */ 2534 2535 qtest_add_func("/migration/precopy/tcp/plain", test_precopy_tcp_plain); 2536 #ifdef CONFIG_GNUTLS 2537 #ifndef _WIN32 2538 qtest_add_func("/migration/precopy/tcp/tls/psk/match", 2539 test_precopy_tcp_tls_psk_match); 2540 #endif 2541 qtest_add_func("/migration/precopy/tcp/tls/psk/mismatch", 2542 test_precopy_tcp_tls_psk_mismatch); 2543 #ifdef CONFIG_TASN1 2544 qtest_add_func("/migration/precopy/tcp/tls/x509/default-host", 2545 test_precopy_tcp_tls_x509_default_host); 2546 qtest_add_func("/migration/precopy/tcp/tls/x509/override-host", 2547 test_precopy_tcp_tls_x509_override_host); 2548 qtest_add_func("/migration/precopy/tcp/tls/x509/mismatch-host", 2549 test_precopy_tcp_tls_x509_mismatch_host); 2550 qtest_add_func("/migration/precopy/tcp/tls/x509/friendly-client", 2551 test_precopy_tcp_tls_x509_friendly_client); 2552 qtest_add_func("/migration/precopy/tcp/tls/x509/hostile-client", 2553 test_precopy_tcp_tls_x509_hostile_client); 2554 qtest_add_func("/migration/precopy/tcp/tls/x509/allow-anon-client", 2555 test_precopy_tcp_tls_x509_allow_anon_client); 2556 qtest_add_func("/migration/precopy/tcp/tls/x509/reject-anon-client", 2557 test_precopy_tcp_tls_x509_reject_anon_client); 2558 #endif /* CONFIG_TASN1 */ 2559 #endif /* CONFIG_GNUTLS */ 2560 2561 /* qtest_add_func("/migration/ignore_shared", test_ignore_shared); */ 2562 #ifndef _WIN32 2563 qtest_add_func("/migration/fd_proto", test_migrate_fd_proto); 2564 #endif 2565 qtest_add_func("/migration/validate_uuid", test_validate_uuid); 2566 qtest_add_func("/migration/validate_uuid_error", test_validate_uuid_error); 2567 qtest_add_func("/migration/validate_uuid_src_not_set", 2568 test_validate_uuid_src_not_set); 2569 qtest_add_func("/migration/validate_uuid_dst_not_set", 2570 test_validate_uuid_dst_not_set); 2571 2572 qtest_add_func("/migration/auto_converge", test_migrate_auto_converge); 2573 qtest_add_func("/migration/multifd/tcp/plain/none", 2574 test_multifd_tcp_none); 2575 qtest_add_func("/migration/multifd/tcp/plain/cancel", 2576 test_multifd_tcp_cancel); 2577 qtest_add_func("/migration/multifd/tcp/plain/zlib", 2578 test_multifd_tcp_zlib); 2579 #ifdef CONFIG_ZSTD 2580 qtest_add_func("/migration/multifd/tcp/plain/zstd", 2581 test_multifd_tcp_zstd); 2582 #endif 2583 #ifdef CONFIG_GNUTLS 2584 #ifndef _WIN32 2585 qtest_add_func("/migration/multifd/tcp/tls/psk/match", 2586 test_multifd_tcp_tls_psk_match); 2587 #endif 2588 qtest_add_func("/migration/multifd/tcp/tls/psk/mismatch", 2589 test_multifd_tcp_tls_psk_mismatch); 2590 #ifdef CONFIG_TASN1 2591 qtest_add_func("/migration/multifd/tcp/tls/x509/default-host", 2592 test_multifd_tcp_tls_x509_default_host); 2593 qtest_add_func("/migration/multifd/tcp/tls/x509/override-host", 2594 test_multifd_tcp_tls_x509_override_host); 2595 qtest_add_func("/migration/multifd/tcp/tls/x509/mismatch-host", 2596 test_multifd_tcp_tls_x509_mismatch_host); 2597 qtest_add_func("/migration/multifd/tcp/tls/x509/allow-anon-client", 2598 test_multifd_tcp_tls_x509_allow_anon_client); 2599 qtest_add_func("/migration/multifd/tcp/tls/x509/reject-anon-client", 2600 test_multifd_tcp_tls_x509_reject_anon_client); 2601 #endif /* CONFIG_TASN1 */ 2602 #endif /* CONFIG_GNUTLS */ 2603 2604 if (g_str_equal(arch, "x86_64") && has_kvm && kvm_dirty_ring_supported()) { 2605 qtest_add_func("/migration/dirty_ring", 2606 test_precopy_unix_dirty_ring); 2607 qtest_add_func("/migration/vcpu_dirty_limit", 2608 test_vcpu_dirty_limit); 2609 } 2610 2611 ret = g_test_run(); 2612 2613 g_assert_cmpint(ret, ==, 0); 2614 2615 ret = rmdir(tmpfs); 2616 if (ret != 0) { 2617 g_test_message("unable to rmdir: path (%s): %s", 2618 tmpfs, strerror(errno)); 2619 } 2620 g_free(tmpfs); 2621 2622 return ret; 2623 } 2624