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 g_free(data->keyfile); 1070 1071 unlink(data->cacert); 1072 g_free(data->cacert); 1073 unlink(data->servercert); 1074 g_free(data->servercert); 1075 unlink(data->serverkey); 1076 g_free(data->serverkey); 1077 1078 if (data->clientcert) { 1079 unlink(data->clientcert); 1080 g_free(data->clientcert); 1081 } 1082 if (data->clientkey) { 1083 unlink(data->clientkey); 1084 g_free(data->clientkey); 1085 } 1086 1087 rmdir(data->workdir); 1088 g_free(data->workdir); 1089 1090 g_free(data); 1091 } 1092 #endif /* CONFIG_TASN1 */ 1093 #endif /* CONFIG_GNUTLS */ 1094 1095 static int migrate_postcopy_prepare(QTestState **from_ptr, 1096 QTestState **to_ptr, 1097 MigrateCommon *args) 1098 { 1099 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1100 QTestState *from, *to; 1101 1102 if (test_migrate_start(&from, &to, uri, &args->start)) { 1103 return -1; 1104 } 1105 1106 if (args->start_hook) { 1107 args->postcopy_data = args->start_hook(from, to); 1108 } 1109 1110 migrate_set_capability(from, "postcopy-ram", true); 1111 migrate_set_capability(to, "postcopy-ram", true); 1112 migrate_set_capability(to, "postcopy-blocktime", true); 1113 1114 if (args->postcopy_preempt) { 1115 migrate_set_capability(from, "postcopy-preempt", true); 1116 migrate_set_capability(to, "postcopy-preempt", true); 1117 } 1118 1119 migrate_ensure_non_converge(from); 1120 1121 /* Wait for the first serial output from the source */ 1122 wait_for_serial("src_serial"); 1123 1124 migrate_qmp(from, uri, "{}"); 1125 1126 wait_for_migration_pass(from); 1127 1128 *from_ptr = from; 1129 *to_ptr = to; 1130 1131 return 0; 1132 } 1133 1134 static void migrate_postcopy_complete(QTestState *from, QTestState *to, 1135 MigrateCommon *args) 1136 { 1137 wait_for_migration_complete(from); 1138 1139 /* Make sure we get at least one "B" on destination */ 1140 wait_for_serial("dest_serial"); 1141 1142 if (uffd_feature_thread_id) { 1143 read_blocktime(to); 1144 } 1145 1146 if (args->finish_hook) { 1147 args->finish_hook(from, to, args->postcopy_data); 1148 args->postcopy_data = NULL; 1149 } 1150 1151 test_migrate_end(from, to, true); 1152 } 1153 1154 static void test_postcopy_common(MigrateCommon *args) 1155 { 1156 QTestState *from, *to; 1157 1158 if (migrate_postcopy_prepare(&from, &to, args)) { 1159 return; 1160 } 1161 migrate_postcopy_start(from, to); 1162 migrate_postcopy_complete(from, to, args); 1163 } 1164 1165 static void test_postcopy(void) 1166 { 1167 MigrateCommon args = { }; 1168 1169 test_postcopy_common(&args); 1170 } 1171 1172 static void test_postcopy_preempt(void) 1173 { 1174 MigrateCommon args = { 1175 .postcopy_preempt = true, 1176 }; 1177 1178 test_postcopy_common(&args); 1179 } 1180 1181 #ifdef CONFIG_GNUTLS 1182 static void test_postcopy_tls_psk(void) 1183 { 1184 MigrateCommon args = { 1185 .start_hook = test_migrate_tls_psk_start_match, 1186 .finish_hook = test_migrate_tls_psk_finish, 1187 }; 1188 1189 test_postcopy_common(&args); 1190 } 1191 1192 static void test_postcopy_preempt_tls_psk(void) 1193 { 1194 MigrateCommon args = { 1195 .postcopy_preempt = true, 1196 .start_hook = test_migrate_tls_psk_start_match, 1197 .finish_hook = test_migrate_tls_psk_finish, 1198 }; 1199 1200 test_postcopy_common(&args); 1201 } 1202 #endif 1203 1204 static void test_postcopy_recovery_common(MigrateCommon *args) 1205 { 1206 QTestState *from, *to; 1207 g_autofree char *uri = NULL; 1208 1209 /* Always hide errors for postcopy recover tests since they're expected */ 1210 args->start.hide_stderr = true; 1211 1212 if (migrate_postcopy_prepare(&from, &to, args)) { 1213 return; 1214 } 1215 1216 /* Turn postcopy speed down, 4K/s is slow enough on any machines */ 1217 migrate_set_parameter_int(from, "max-postcopy-bandwidth", 4096); 1218 1219 /* Now we start the postcopy */ 1220 migrate_postcopy_start(from, to); 1221 1222 /* 1223 * Wait until postcopy is really started; we can only run the 1224 * migrate-pause command during a postcopy 1225 */ 1226 wait_for_migration_status(from, "postcopy-active", NULL); 1227 1228 /* 1229 * Manually stop the postcopy migration. This emulates a network 1230 * failure with the migration socket 1231 */ 1232 migrate_pause(from); 1233 1234 /* 1235 * Wait for destination side to reach postcopy-paused state. The 1236 * migrate-recover command can only succeed if destination machine 1237 * is in the paused state 1238 */ 1239 wait_for_migration_status(to, "postcopy-paused", 1240 (const char * []) { "failed", "active", 1241 "completed", NULL }); 1242 1243 /* 1244 * Create a new socket to emulate a new channel that is different 1245 * from the broken migration channel; tell the destination to 1246 * listen to the new port 1247 */ 1248 uri = g_strdup_printf("unix:%s/migsocket-recover", tmpfs); 1249 migrate_recover(to, uri); 1250 1251 /* 1252 * Try to rebuild the migration channel using the resume flag and 1253 * the newly created channel 1254 */ 1255 wait_for_migration_status(from, "postcopy-paused", 1256 (const char * []) { "failed", "active", 1257 "completed", NULL }); 1258 migrate_qmp(from, uri, "{'resume': true}"); 1259 1260 /* Restore the postcopy bandwidth to unlimited */ 1261 migrate_set_parameter_int(from, "max-postcopy-bandwidth", 0); 1262 1263 migrate_postcopy_complete(from, to, args); 1264 } 1265 1266 static void test_postcopy_recovery(void) 1267 { 1268 MigrateCommon args = { }; 1269 1270 test_postcopy_recovery_common(&args); 1271 } 1272 1273 #ifdef CONFIG_GNUTLS 1274 static void test_postcopy_recovery_tls_psk(void) 1275 { 1276 MigrateCommon args = { 1277 .start_hook = test_migrate_tls_psk_start_match, 1278 .finish_hook = test_migrate_tls_psk_finish, 1279 }; 1280 1281 test_postcopy_recovery_common(&args); 1282 } 1283 #endif 1284 1285 static void test_postcopy_preempt_recovery(void) 1286 { 1287 MigrateCommon args = { 1288 .postcopy_preempt = true, 1289 }; 1290 1291 test_postcopy_recovery_common(&args); 1292 } 1293 1294 #ifdef CONFIG_GNUTLS 1295 /* This contains preempt+recovery+tls test altogether */ 1296 static void test_postcopy_preempt_all(void) 1297 { 1298 MigrateCommon args = { 1299 .postcopy_preempt = true, 1300 .start_hook = test_migrate_tls_psk_start_match, 1301 .finish_hook = test_migrate_tls_psk_finish, 1302 }; 1303 1304 test_postcopy_recovery_common(&args); 1305 } 1306 #endif 1307 1308 static void test_baddest(void) 1309 { 1310 MigrateStart args = { 1311 .hide_stderr = true 1312 }; 1313 QTestState *from, *to; 1314 1315 if (test_migrate_start(&from, &to, "tcp:127.0.0.1:0", &args)) { 1316 return; 1317 } 1318 migrate_qmp(from, "tcp:127.0.0.1:0", "{}"); 1319 wait_for_migration_fail(from, false); 1320 test_migrate_end(from, to, false); 1321 } 1322 1323 static void test_precopy_common(MigrateCommon *args) 1324 { 1325 QTestState *from, *to; 1326 void *data_hook = NULL; 1327 1328 if (test_migrate_start(&from, &to, args->listen_uri, &args->start)) { 1329 return; 1330 } 1331 1332 migrate_ensure_non_converge(from); 1333 1334 if (args->start_hook) { 1335 data_hook = args->start_hook(from, to); 1336 } 1337 1338 /* Wait for the first serial output from the source */ 1339 if (args->result == MIG_TEST_SUCCEED) { 1340 wait_for_serial("src_serial"); 1341 } 1342 1343 if (!args->connect_uri) { 1344 g_autofree char *local_connect_uri = 1345 migrate_get_socket_address(to, "socket-address"); 1346 migrate_qmp(from, local_connect_uri, "{}"); 1347 } else { 1348 migrate_qmp(from, args->connect_uri, "{}"); 1349 } 1350 1351 1352 if (args->result != MIG_TEST_SUCCEED) { 1353 bool allow_active = args->result == MIG_TEST_FAIL; 1354 wait_for_migration_fail(from, allow_active); 1355 1356 if (args->result == MIG_TEST_FAIL_DEST_QUIT_ERR) { 1357 qtest_set_expected_status(to, EXIT_FAILURE); 1358 } 1359 } else { 1360 if (args->iterations) { 1361 while (args->iterations--) { 1362 wait_for_migration_pass(from); 1363 } 1364 } else { 1365 wait_for_migration_pass(from); 1366 } 1367 1368 migrate_ensure_converge(from); 1369 1370 /* We do this first, as it has a timeout to stop us 1371 * hanging forever if migration didn't converge */ 1372 wait_for_migration_complete(from); 1373 1374 if (!got_stop) { 1375 qtest_qmp_eventwait(from, "STOP"); 1376 } 1377 1378 qtest_qmp_eventwait(to, "RESUME"); 1379 1380 wait_for_serial("dest_serial"); 1381 } 1382 1383 if (args->finish_hook) { 1384 args->finish_hook(from, to, data_hook); 1385 } 1386 1387 test_migrate_end(from, to, args->result == MIG_TEST_SUCCEED); 1388 } 1389 1390 static void test_precopy_unix_plain(void) 1391 { 1392 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1393 MigrateCommon args = { 1394 .listen_uri = uri, 1395 .connect_uri = uri, 1396 }; 1397 1398 test_precopy_common(&args); 1399 } 1400 1401 1402 static void test_precopy_unix_dirty_ring(void) 1403 { 1404 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1405 MigrateCommon args = { 1406 .start = { 1407 .use_dirty_ring = true, 1408 }, 1409 .listen_uri = uri, 1410 .connect_uri = uri, 1411 }; 1412 1413 test_precopy_common(&args); 1414 } 1415 1416 #ifdef CONFIG_GNUTLS 1417 static void test_precopy_unix_tls_psk(void) 1418 { 1419 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1420 MigrateCommon args = { 1421 .connect_uri = uri, 1422 .listen_uri = uri, 1423 .start_hook = test_migrate_tls_psk_start_match, 1424 .finish_hook = test_migrate_tls_psk_finish, 1425 }; 1426 1427 test_precopy_common(&args); 1428 } 1429 1430 #ifdef CONFIG_TASN1 1431 static void test_precopy_unix_tls_x509_default_host(void) 1432 { 1433 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1434 MigrateCommon args = { 1435 .start = { 1436 .hide_stderr = true, 1437 }, 1438 .connect_uri = uri, 1439 .listen_uri = uri, 1440 .start_hook = test_migrate_tls_x509_start_default_host, 1441 .finish_hook = test_migrate_tls_x509_finish, 1442 .result = MIG_TEST_FAIL_DEST_QUIT_ERR, 1443 }; 1444 1445 test_precopy_common(&args); 1446 } 1447 1448 static void test_precopy_unix_tls_x509_override_host(void) 1449 { 1450 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1451 MigrateCommon args = { 1452 .connect_uri = uri, 1453 .listen_uri = uri, 1454 .start_hook = test_migrate_tls_x509_start_override_host, 1455 .finish_hook = test_migrate_tls_x509_finish, 1456 }; 1457 1458 test_precopy_common(&args); 1459 } 1460 #endif /* CONFIG_TASN1 */ 1461 #endif /* CONFIG_GNUTLS */ 1462 1463 #if 0 1464 /* Currently upset on aarch64 TCG */ 1465 static void test_ignore_shared(void) 1466 { 1467 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1468 QTestState *from, *to; 1469 1470 if (test_migrate_start(&from, &to, uri, false, true, NULL, NULL)) { 1471 return; 1472 } 1473 1474 migrate_set_capability(from, "x-ignore-shared", true); 1475 migrate_set_capability(to, "x-ignore-shared", true); 1476 1477 /* Wait for the first serial output from the source */ 1478 wait_for_serial("src_serial"); 1479 1480 migrate_qmp(from, uri, "{}"); 1481 1482 wait_for_migration_pass(from); 1483 1484 if (!got_stop) { 1485 qtest_qmp_eventwait(from, "STOP"); 1486 } 1487 1488 qtest_qmp_eventwait(to, "RESUME"); 1489 1490 wait_for_serial("dest_serial"); 1491 wait_for_migration_complete(from); 1492 1493 /* Check whether shared RAM has been really skipped */ 1494 g_assert_cmpint(read_ram_property_int(from, "transferred"), <, 1024 * 1024); 1495 1496 test_migrate_end(from, to, true); 1497 } 1498 #endif 1499 1500 static void * 1501 test_migrate_xbzrle_start(QTestState *from, 1502 QTestState *to) 1503 { 1504 migrate_set_parameter_int(from, "xbzrle-cache-size", 33554432); 1505 1506 migrate_set_capability(from, "xbzrle", true); 1507 migrate_set_capability(to, "xbzrle", true); 1508 1509 return NULL; 1510 } 1511 1512 static void test_precopy_unix_xbzrle(void) 1513 { 1514 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1515 MigrateCommon args = { 1516 .connect_uri = uri, 1517 .listen_uri = uri, 1518 1519 .start_hook = test_migrate_xbzrle_start, 1520 1521 .iterations = 2, 1522 }; 1523 1524 test_precopy_common(&args); 1525 } 1526 1527 static void test_precopy_tcp_plain(void) 1528 { 1529 MigrateCommon args = { 1530 .listen_uri = "tcp:127.0.0.1:0", 1531 }; 1532 1533 test_precopy_common(&args); 1534 } 1535 1536 #ifdef CONFIG_GNUTLS 1537 static void test_precopy_tcp_tls_psk_match(void) 1538 { 1539 MigrateCommon args = { 1540 .listen_uri = "tcp:127.0.0.1:0", 1541 .start_hook = test_migrate_tls_psk_start_match, 1542 .finish_hook = test_migrate_tls_psk_finish, 1543 }; 1544 1545 test_precopy_common(&args); 1546 } 1547 1548 static void test_precopy_tcp_tls_psk_mismatch(void) 1549 { 1550 MigrateCommon args = { 1551 .start = { 1552 .hide_stderr = true, 1553 }, 1554 .listen_uri = "tcp:127.0.0.1:0", 1555 .start_hook = test_migrate_tls_psk_start_mismatch, 1556 .finish_hook = test_migrate_tls_psk_finish, 1557 .result = MIG_TEST_FAIL, 1558 }; 1559 1560 test_precopy_common(&args); 1561 } 1562 1563 #ifdef CONFIG_TASN1 1564 static void test_precopy_tcp_tls_x509_default_host(void) 1565 { 1566 MigrateCommon args = { 1567 .listen_uri = "tcp:127.0.0.1:0", 1568 .start_hook = test_migrate_tls_x509_start_default_host, 1569 .finish_hook = test_migrate_tls_x509_finish, 1570 }; 1571 1572 test_precopy_common(&args); 1573 } 1574 1575 static void test_precopy_tcp_tls_x509_override_host(void) 1576 { 1577 MigrateCommon args = { 1578 .listen_uri = "tcp:127.0.0.1:0", 1579 .start_hook = test_migrate_tls_x509_start_override_host, 1580 .finish_hook = test_migrate_tls_x509_finish, 1581 }; 1582 1583 test_precopy_common(&args); 1584 } 1585 1586 static void test_precopy_tcp_tls_x509_mismatch_host(void) 1587 { 1588 MigrateCommon args = { 1589 .start = { 1590 .hide_stderr = true, 1591 }, 1592 .listen_uri = "tcp:127.0.0.1:0", 1593 .start_hook = test_migrate_tls_x509_start_mismatch_host, 1594 .finish_hook = test_migrate_tls_x509_finish, 1595 .result = MIG_TEST_FAIL_DEST_QUIT_ERR, 1596 }; 1597 1598 test_precopy_common(&args); 1599 } 1600 1601 static void test_precopy_tcp_tls_x509_friendly_client(void) 1602 { 1603 MigrateCommon args = { 1604 .listen_uri = "tcp:127.0.0.1:0", 1605 .start_hook = test_migrate_tls_x509_start_friendly_client, 1606 .finish_hook = test_migrate_tls_x509_finish, 1607 }; 1608 1609 test_precopy_common(&args); 1610 } 1611 1612 static void test_precopy_tcp_tls_x509_hostile_client(void) 1613 { 1614 MigrateCommon args = { 1615 .start = { 1616 .hide_stderr = true, 1617 }, 1618 .listen_uri = "tcp:127.0.0.1:0", 1619 .start_hook = test_migrate_tls_x509_start_hostile_client, 1620 .finish_hook = test_migrate_tls_x509_finish, 1621 .result = MIG_TEST_FAIL, 1622 }; 1623 1624 test_precopy_common(&args); 1625 } 1626 1627 static void test_precopy_tcp_tls_x509_allow_anon_client(void) 1628 { 1629 MigrateCommon args = { 1630 .listen_uri = "tcp:127.0.0.1:0", 1631 .start_hook = test_migrate_tls_x509_start_allow_anon_client, 1632 .finish_hook = test_migrate_tls_x509_finish, 1633 }; 1634 1635 test_precopy_common(&args); 1636 } 1637 1638 static void test_precopy_tcp_tls_x509_reject_anon_client(void) 1639 { 1640 MigrateCommon args = { 1641 .start = { 1642 .hide_stderr = true, 1643 }, 1644 .listen_uri = "tcp:127.0.0.1:0", 1645 .start_hook = test_migrate_tls_x509_start_reject_anon_client, 1646 .finish_hook = test_migrate_tls_x509_finish, 1647 .result = MIG_TEST_FAIL, 1648 }; 1649 1650 test_precopy_common(&args); 1651 } 1652 #endif /* CONFIG_TASN1 */ 1653 #endif /* CONFIG_GNUTLS */ 1654 1655 #ifndef _WIN32 1656 static void *test_migrate_fd_start_hook(QTestState *from, 1657 QTestState *to) 1658 { 1659 QDict *rsp; 1660 int ret; 1661 int pair[2]; 1662 1663 /* Create two connected sockets for migration */ 1664 ret = qemu_socketpair(PF_LOCAL, SOCK_STREAM, 0, pair); 1665 g_assert_cmpint(ret, ==, 0); 1666 1667 /* Send the 1st socket to the target */ 1668 rsp = wait_command_fd(to, pair[0], 1669 "{ 'execute': 'getfd'," 1670 " 'arguments': { 'fdname': 'fd-mig' }}"); 1671 qobject_unref(rsp); 1672 close(pair[0]); 1673 1674 /* Start incoming migration from the 1st socket */ 1675 rsp = wait_command(to, "{ 'execute': 'migrate-incoming'," 1676 " 'arguments': { 'uri': 'fd:fd-mig' }}"); 1677 qobject_unref(rsp); 1678 1679 /* Send the 2nd socket to the target */ 1680 rsp = wait_command_fd(from, pair[1], 1681 "{ 'execute': 'getfd'," 1682 " 'arguments': { 'fdname': 'fd-mig' }}"); 1683 qobject_unref(rsp); 1684 close(pair[1]); 1685 1686 return NULL; 1687 } 1688 1689 static void test_migrate_fd_finish_hook(QTestState *from, 1690 QTestState *to, 1691 void *opaque) 1692 { 1693 QDict *rsp; 1694 const char *error_desc; 1695 1696 /* Test closing fds */ 1697 /* We assume, that QEMU removes named fd from its list, 1698 * so this should fail */ 1699 rsp = qtest_qmp(from, "{ 'execute': 'closefd'," 1700 " 'arguments': { 'fdname': 'fd-mig' }}"); 1701 g_assert_true(qdict_haskey(rsp, "error")); 1702 error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc"); 1703 g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found"); 1704 qobject_unref(rsp); 1705 1706 rsp = qtest_qmp(to, "{ 'execute': 'closefd'," 1707 " 'arguments': { 'fdname': 'fd-mig' }}"); 1708 g_assert_true(qdict_haskey(rsp, "error")); 1709 error_desc = qdict_get_str(qdict_get_qdict(rsp, "error"), "desc"); 1710 g_assert_cmpstr(error_desc, ==, "File descriptor named 'fd-mig' not found"); 1711 qobject_unref(rsp); 1712 } 1713 1714 static void test_migrate_fd_proto(void) 1715 { 1716 MigrateCommon args = { 1717 .listen_uri = "defer", 1718 .connect_uri = "fd:fd-mig", 1719 .start_hook = test_migrate_fd_start_hook, 1720 .finish_hook = test_migrate_fd_finish_hook 1721 }; 1722 test_precopy_common(&args); 1723 } 1724 #endif /* _WIN32 */ 1725 1726 static void do_test_validate_uuid(MigrateStart *args, bool should_fail) 1727 { 1728 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1729 QTestState *from, *to; 1730 1731 if (test_migrate_start(&from, &to, uri, args)) { 1732 return; 1733 } 1734 1735 /* 1736 * UUID validation is at the begin of migration. So, the main process of 1737 * migration is not interesting for us here. Thus, set huge downtime for 1738 * very fast migration. 1739 */ 1740 migrate_set_parameter_int(from, "downtime-limit", 1000000); 1741 migrate_set_capability(from, "validate-uuid", true); 1742 1743 /* Wait for the first serial output from the source */ 1744 wait_for_serial("src_serial"); 1745 1746 migrate_qmp(from, uri, "{}"); 1747 1748 if (should_fail) { 1749 qtest_set_expected_status(to, EXIT_FAILURE); 1750 wait_for_migration_fail(from, true); 1751 } else { 1752 wait_for_migration_complete(from); 1753 } 1754 1755 test_migrate_end(from, to, false); 1756 } 1757 1758 static void test_validate_uuid(void) 1759 { 1760 MigrateStart args = { 1761 .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", 1762 .opts_target = "-uuid 11111111-1111-1111-1111-111111111111", 1763 }; 1764 1765 do_test_validate_uuid(&args, false); 1766 } 1767 1768 static void test_validate_uuid_error(void) 1769 { 1770 MigrateStart args = { 1771 .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", 1772 .opts_target = "-uuid 22222222-2222-2222-2222-222222222222", 1773 .hide_stderr = true, 1774 }; 1775 1776 do_test_validate_uuid(&args, true); 1777 } 1778 1779 static void test_validate_uuid_src_not_set(void) 1780 { 1781 MigrateStart args = { 1782 .opts_target = "-uuid 22222222-2222-2222-2222-222222222222", 1783 .hide_stderr = true, 1784 }; 1785 1786 do_test_validate_uuid(&args, false); 1787 } 1788 1789 static void test_validate_uuid_dst_not_set(void) 1790 { 1791 MigrateStart args = { 1792 .opts_source = "-uuid 11111111-1111-1111-1111-111111111111", 1793 .hide_stderr = true, 1794 }; 1795 1796 do_test_validate_uuid(&args, false); 1797 } 1798 1799 static void test_migrate_auto_converge(void) 1800 { 1801 g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); 1802 MigrateStart args = {}; 1803 QTestState *from, *to; 1804 int64_t percentage; 1805 1806 /* 1807 * We want the test to be stable and as fast as possible. 1808 * E.g., with 1Gb/s bandwith migration may pass without throttling, 1809 * so we need to decrease a bandwidth. 1810 */ 1811 const int64_t init_pct = 5, inc_pct = 50, max_pct = 95; 1812 1813 if (test_migrate_start(&from, &to, uri, &args)) { 1814 return; 1815 } 1816 1817 migrate_set_capability(from, "auto-converge", true); 1818 migrate_set_parameter_int(from, "cpu-throttle-initial", init_pct); 1819 migrate_set_parameter_int(from, "cpu-throttle-increment", inc_pct); 1820 migrate_set_parameter_int(from, "max-cpu-throttle", max_pct); 1821 1822 /* 1823 * Set the initial parameters so that the migration could not converge 1824 * without throttling. 1825 */ 1826 migrate_ensure_non_converge(from); 1827 1828 /* To check remaining size after precopy */ 1829 migrate_set_capability(from, "pause-before-switchover", true); 1830 1831 /* Wait for the first serial output from the source */ 1832 wait_for_serial("src_serial"); 1833 1834 migrate_qmp(from, uri, "{}"); 1835 1836 /* Wait for throttling begins */ 1837 percentage = 0; 1838 while (percentage == 0) { 1839 percentage = read_migrate_property_int(from, "cpu-throttle-percentage"); 1840 usleep(100); 1841 g_assert_false(got_stop); 1842 } 1843 /* The first percentage of throttling should be equal to init_pct */ 1844 g_assert_cmpint(percentage, ==, init_pct); 1845 /* Now, when we tested that throttling works, let it converge */ 1846 migrate_ensure_converge(from); 1847 1848 /* 1849 * Wait for pre-switchover status to check last throttle percentage 1850 * and remaining. These values will be zeroed later 1851 */ 1852 wait_for_migration_status(from, "pre-switchover", NULL); 1853 1854 /* The final percentage of throttling shouldn't be greater than max_pct */ 1855 percentage = read_migrate_property_int(from, "cpu-throttle-percentage"); 1856 g_assert_cmpint(percentage, <=, max_pct); 1857 migrate_continue(from, "pre-switchover"); 1858 1859 qtest_qmp_eventwait(to, "RESUME"); 1860 1861 wait_for_serial("dest_serial"); 1862 wait_for_migration_complete(from); 1863 1864 test_migrate_end(from, to, true); 1865 } 1866 1867 static void * 1868 test_migrate_precopy_tcp_multifd_start_common(QTestState *from, 1869 QTestState *to, 1870 const char *method) 1871 { 1872 QDict *rsp; 1873 1874 migrate_set_parameter_int(from, "multifd-channels", 16); 1875 migrate_set_parameter_int(to, "multifd-channels", 16); 1876 1877 migrate_set_parameter_str(from, "multifd-compression", method); 1878 migrate_set_parameter_str(to, "multifd-compression", method); 1879 1880 migrate_set_capability(from, "multifd", true); 1881 migrate_set_capability(to, "multifd", true); 1882 1883 /* Start incoming migration from the 1st socket */ 1884 rsp = wait_command(to, "{ 'execute': 'migrate-incoming'," 1885 " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}"); 1886 qobject_unref(rsp); 1887 1888 return NULL; 1889 } 1890 1891 static void * 1892 test_migrate_precopy_tcp_multifd_start(QTestState *from, 1893 QTestState *to) 1894 { 1895 return test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1896 } 1897 1898 static void * 1899 test_migrate_precopy_tcp_multifd_zlib_start(QTestState *from, 1900 QTestState *to) 1901 { 1902 return test_migrate_precopy_tcp_multifd_start_common(from, to, "zlib"); 1903 } 1904 1905 #ifdef CONFIG_ZSTD 1906 static void * 1907 test_migrate_precopy_tcp_multifd_zstd_start(QTestState *from, 1908 QTestState *to) 1909 { 1910 return test_migrate_precopy_tcp_multifd_start_common(from, to, "zstd"); 1911 } 1912 #endif /* CONFIG_ZSTD */ 1913 1914 static void test_multifd_tcp_none(void) 1915 { 1916 MigrateCommon args = { 1917 .listen_uri = "defer", 1918 .start_hook = test_migrate_precopy_tcp_multifd_start, 1919 }; 1920 test_precopy_common(&args); 1921 } 1922 1923 static void test_multifd_tcp_zlib(void) 1924 { 1925 MigrateCommon args = { 1926 .listen_uri = "defer", 1927 .start_hook = test_migrate_precopy_tcp_multifd_zlib_start, 1928 }; 1929 test_precopy_common(&args); 1930 } 1931 1932 #ifdef CONFIG_ZSTD 1933 static void test_multifd_tcp_zstd(void) 1934 { 1935 MigrateCommon args = { 1936 .listen_uri = "defer", 1937 .start_hook = test_migrate_precopy_tcp_multifd_zstd_start, 1938 }; 1939 test_precopy_common(&args); 1940 } 1941 #endif 1942 1943 #ifdef CONFIG_GNUTLS 1944 static void * 1945 test_migrate_multifd_tcp_tls_psk_start_match(QTestState *from, 1946 QTestState *to) 1947 { 1948 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1949 return test_migrate_tls_psk_start_match(from, to); 1950 } 1951 1952 static void * 1953 test_migrate_multifd_tcp_tls_psk_start_mismatch(QTestState *from, 1954 QTestState *to) 1955 { 1956 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1957 return test_migrate_tls_psk_start_mismatch(from, to); 1958 } 1959 1960 #ifdef CONFIG_TASN1 1961 static void * 1962 test_migrate_multifd_tls_x509_start_default_host(QTestState *from, 1963 QTestState *to) 1964 { 1965 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1966 return test_migrate_tls_x509_start_default_host(from, to); 1967 } 1968 1969 static void * 1970 test_migrate_multifd_tls_x509_start_override_host(QTestState *from, 1971 QTestState *to) 1972 { 1973 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1974 return test_migrate_tls_x509_start_override_host(from, to); 1975 } 1976 1977 static void * 1978 test_migrate_multifd_tls_x509_start_mismatch_host(QTestState *from, 1979 QTestState *to) 1980 { 1981 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1982 return test_migrate_tls_x509_start_mismatch_host(from, to); 1983 } 1984 1985 static void * 1986 test_migrate_multifd_tls_x509_start_allow_anon_client(QTestState *from, 1987 QTestState *to) 1988 { 1989 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1990 return test_migrate_tls_x509_start_allow_anon_client(from, to); 1991 } 1992 1993 static void * 1994 test_migrate_multifd_tls_x509_start_reject_anon_client(QTestState *from, 1995 QTestState *to) 1996 { 1997 test_migrate_precopy_tcp_multifd_start_common(from, to, "none"); 1998 return test_migrate_tls_x509_start_reject_anon_client(from, to); 1999 } 2000 #endif /* CONFIG_TASN1 */ 2001 2002 static void test_multifd_tcp_tls_psk_match(void) 2003 { 2004 MigrateCommon args = { 2005 .listen_uri = "defer", 2006 .start_hook = test_migrate_multifd_tcp_tls_psk_start_match, 2007 .finish_hook = test_migrate_tls_psk_finish, 2008 }; 2009 test_precopy_common(&args); 2010 } 2011 2012 static void test_multifd_tcp_tls_psk_mismatch(void) 2013 { 2014 MigrateCommon args = { 2015 .start = { 2016 .hide_stderr = true, 2017 }, 2018 .listen_uri = "defer", 2019 .start_hook = test_migrate_multifd_tcp_tls_psk_start_mismatch, 2020 .finish_hook = test_migrate_tls_psk_finish, 2021 .result = MIG_TEST_FAIL, 2022 }; 2023 test_precopy_common(&args); 2024 } 2025 2026 #ifdef CONFIG_TASN1 2027 static void test_multifd_tcp_tls_x509_default_host(void) 2028 { 2029 MigrateCommon args = { 2030 .listen_uri = "defer", 2031 .start_hook = test_migrate_multifd_tls_x509_start_default_host, 2032 .finish_hook = test_migrate_tls_x509_finish, 2033 }; 2034 test_precopy_common(&args); 2035 } 2036 2037 static void test_multifd_tcp_tls_x509_override_host(void) 2038 { 2039 MigrateCommon args = { 2040 .listen_uri = "defer", 2041 .start_hook = test_migrate_multifd_tls_x509_start_override_host, 2042 .finish_hook = test_migrate_tls_x509_finish, 2043 }; 2044 test_precopy_common(&args); 2045 } 2046 2047 static void test_multifd_tcp_tls_x509_mismatch_host(void) 2048 { 2049 /* 2050 * This has different behaviour to the non-multifd case. 2051 * 2052 * In non-multifd case when client aborts due to mismatched 2053 * cert host, the server has already started trying to load 2054 * migration state, and so it exits with I/O failure. 2055 * 2056 * In multifd case when client aborts due to mismatched 2057 * cert host, the server is still waiting for the other 2058 * multifd connections to arrive so hasn't started trying 2059 * to load migration state, and thus just aborts the migration 2060 * without exiting. 2061 */ 2062 MigrateCommon args = { 2063 .start = { 2064 .hide_stderr = true, 2065 }, 2066 .listen_uri = "defer", 2067 .start_hook = test_migrate_multifd_tls_x509_start_mismatch_host, 2068 .finish_hook = test_migrate_tls_x509_finish, 2069 .result = MIG_TEST_FAIL, 2070 }; 2071 test_precopy_common(&args); 2072 } 2073 2074 static void test_multifd_tcp_tls_x509_allow_anon_client(void) 2075 { 2076 MigrateCommon args = { 2077 .listen_uri = "defer", 2078 .start_hook = test_migrate_multifd_tls_x509_start_allow_anon_client, 2079 .finish_hook = test_migrate_tls_x509_finish, 2080 }; 2081 test_precopy_common(&args); 2082 } 2083 2084 static void test_multifd_tcp_tls_x509_reject_anon_client(void) 2085 { 2086 MigrateCommon args = { 2087 .start = { 2088 .hide_stderr = true, 2089 }, 2090 .listen_uri = "defer", 2091 .start_hook = test_migrate_multifd_tls_x509_start_reject_anon_client, 2092 .finish_hook = test_migrate_tls_x509_finish, 2093 .result = MIG_TEST_FAIL, 2094 }; 2095 test_precopy_common(&args); 2096 } 2097 #endif /* CONFIG_TASN1 */ 2098 #endif /* CONFIG_GNUTLS */ 2099 2100 /* 2101 * This test does: 2102 * source target 2103 * migrate_incoming 2104 * migrate 2105 * migrate_cancel 2106 * launch another target 2107 * migrate 2108 * 2109 * And see that it works 2110 */ 2111 static void test_multifd_tcp_cancel(void) 2112 { 2113 MigrateStart args = { 2114 .hide_stderr = true, 2115 }; 2116 QTestState *from, *to, *to2; 2117 QDict *rsp; 2118 g_autofree char *uri = NULL; 2119 2120 if (test_migrate_start(&from, &to, "defer", &args)) { 2121 return; 2122 } 2123 2124 migrate_ensure_non_converge(from); 2125 2126 migrate_set_parameter_int(from, "multifd-channels", 16); 2127 migrate_set_parameter_int(to, "multifd-channels", 16); 2128 2129 migrate_set_capability(from, "multifd", true); 2130 migrate_set_capability(to, "multifd", true); 2131 2132 /* Start incoming migration from the 1st socket */ 2133 rsp = wait_command(to, "{ 'execute': 'migrate-incoming'," 2134 " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}"); 2135 qobject_unref(rsp); 2136 2137 /* Wait for the first serial output from the source */ 2138 wait_for_serial("src_serial"); 2139 2140 uri = migrate_get_socket_address(to, "socket-address"); 2141 2142 migrate_qmp(from, uri, "{}"); 2143 2144 wait_for_migration_pass(from); 2145 2146 migrate_cancel(from); 2147 2148 /* Make sure QEMU process "to" exited */ 2149 qtest_set_expected_status(to, EXIT_FAILURE); 2150 qtest_wait_qemu(to); 2151 2152 args = (MigrateStart){ 2153 .only_target = true, 2154 }; 2155 2156 if (test_migrate_start(&from, &to2, "defer", &args)) { 2157 return; 2158 } 2159 2160 migrate_set_parameter_int(to2, "multifd-channels", 16); 2161 2162 migrate_set_capability(to2, "multifd", true); 2163 2164 /* Start incoming migration from the 1st socket */ 2165 rsp = wait_command(to2, "{ 'execute': 'migrate-incoming'," 2166 " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}"); 2167 qobject_unref(rsp); 2168 2169 g_free(uri); 2170 uri = migrate_get_socket_address(to2, "socket-address"); 2171 2172 wait_for_migration_status(from, "cancelled", NULL); 2173 2174 migrate_ensure_converge(from); 2175 2176 migrate_qmp(from, uri, "{}"); 2177 2178 wait_for_migration_pass(from); 2179 2180 if (!got_stop) { 2181 qtest_qmp_eventwait(from, "STOP"); 2182 } 2183 qtest_qmp_eventwait(to2, "RESUME"); 2184 2185 wait_for_serial("dest_serial"); 2186 wait_for_migration_complete(from); 2187 test_migrate_end(from, to2, true); 2188 } 2189 2190 static void calc_dirty_rate(QTestState *who, uint64_t calc_time) 2191 { 2192 qobject_unref(qmp_command(who, 2193 "{ 'execute': 'calc-dirty-rate'," 2194 "'arguments': { " 2195 "'calc-time': %" PRIu64 "," 2196 "'mode': 'dirty-ring' }}", 2197 calc_time)); 2198 } 2199 2200 static QDict *query_dirty_rate(QTestState *who) 2201 { 2202 return qmp_command(who, "{ 'execute': 'query-dirty-rate' }"); 2203 } 2204 2205 static void dirtylimit_set_all(QTestState *who, uint64_t dirtyrate) 2206 { 2207 qobject_unref(qmp_command(who, 2208 "{ 'execute': 'set-vcpu-dirty-limit'," 2209 "'arguments': { " 2210 "'dirty-rate': %" PRIu64 " } }", 2211 dirtyrate)); 2212 } 2213 2214 static void cancel_vcpu_dirty_limit(QTestState *who) 2215 { 2216 qobject_unref(qmp_command(who, 2217 "{ 'execute': 'cancel-vcpu-dirty-limit' }")); 2218 } 2219 2220 static QDict *query_vcpu_dirty_limit(QTestState *who) 2221 { 2222 QDict *rsp; 2223 2224 rsp = qtest_qmp(who, "{ 'execute': 'query-vcpu-dirty-limit' }"); 2225 g_assert(!qdict_haskey(rsp, "error")); 2226 g_assert(qdict_haskey(rsp, "return")); 2227 2228 return rsp; 2229 } 2230 2231 static bool calc_dirtyrate_ready(QTestState *who) 2232 { 2233 QDict *rsp_return; 2234 gchar *status; 2235 2236 rsp_return = query_dirty_rate(who); 2237 g_assert(rsp_return); 2238 2239 status = g_strdup(qdict_get_str(rsp_return, "status")); 2240 g_assert(status); 2241 2242 return g_strcmp0(status, "measuring"); 2243 } 2244 2245 static void wait_for_calc_dirtyrate_complete(QTestState *who, 2246 int64_t time_s) 2247 { 2248 int max_try_count = 10000; 2249 usleep(time_s * 1000000); 2250 2251 while (!calc_dirtyrate_ready(who) && max_try_count--) { 2252 usleep(1000); 2253 } 2254 2255 /* 2256 * Set the timeout with 10 s(max_try_count * 1000us), 2257 * if dirtyrate measurement not complete, fail test. 2258 */ 2259 g_assert_cmpint(max_try_count, !=, 0); 2260 } 2261 2262 static int64_t get_dirty_rate(QTestState *who) 2263 { 2264 QDict *rsp_return; 2265 gchar *status; 2266 QList *rates; 2267 const QListEntry *entry; 2268 QDict *rate; 2269 int64_t dirtyrate; 2270 2271 rsp_return = query_dirty_rate(who); 2272 g_assert(rsp_return); 2273 2274 status = g_strdup(qdict_get_str(rsp_return, "status")); 2275 g_assert(status); 2276 g_assert_cmpstr(status, ==, "measured"); 2277 2278 rates = qdict_get_qlist(rsp_return, "vcpu-dirty-rate"); 2279 g_assert(rates && !qlist_empty(rates)); 2280 2281 entry = qlist_first(rates); 2282 g_assert(entry); 2283 2284 rate = qobject_to(QDict, qlist_entry_obj(entry)); 2285 g_assert(rate); 2286 2287 dirtyrate = qdict_get_try_int(rate, "dirty-rate", -1); 2288 2289 qobject_unref(rsp_return); 2290 return dirtyrate; 2291 } 2292 2293 static int64_t get_limit_rate(QTestState *who) 2294 { 2295 QDict *rsp_return; 2296 QList *rates; 2297 const QListEntry *entry; 2298 QDict *rate; 2299 int64_t dirtyrate; 2300 2301 rsp_return = query_vcpu_dirty_limit(who); 2302 g_assert(rsp_return); 2303 2304 rates = qdict_get_qlist(rsp_return, "return"); 2305 g_assert(rates && !qlist_empty(rates)); 2306 2307 entry = qlist_first(rates); 2308 g_assert(entry); 2309 2310 rate = qobject_to(QDict, qlist_entry_obj(entry)); 2311 g_assert(rate); 2312 2313 dirtyrate = qdict_get_try_int(rate, "limit-rate", -1); 2314 2315 qobject_unref(rsp_return); 2316 return dirtyrate; 2317 } 2318 2319 static QTestState *dirtylimit_start_vm(void) 2320 { 2321 QTestState *vm = NULL; 2322 g_autofree gchar *cmd = NULL; 2323 const char *arch = qtest_get_arch(); 2324 g_autofree char *bootpath = NULL; 2325 2326 assert((strcmp(arch, "x86_64") == 0)); 2327 bootpath = g_strdup_printf("%s/bootsect", tmpfs); 2328 assert(sizeof(x86_bootsect) == 512); 2329 init_bootfile(bootpath, x86_bootsect, sizeof(x86_bootsect)); 2330 2331 cmd = g_strdup_printf("-accel kvm,dirty-ring-size=4096 " 2332 "-name dirtylimit-test,debug-threads=on " 2333 "-m 150M -smp 1 " 2334 "-serial file:%s/vm_serial " 2335 "-drive file=%s,format=raw ", 2336 tmpfs, bootpath); 2337 2338 vm = qtest_init(cmd); 2339 return vm; 2340 } 2341 2342 static void dirtylimit_stop_vm(QTestState *vm) 2343 { 2344 qtest_quit(vm); 2345 cleanup("bootsect"); 2346 cleanup("vm_serial"); 2347 } 2348 2349 static void test_vcpu_dirty_limit(void) 2350 { 2351 QTestState *vm; 2352 int64_t origin_rate; 2353 int64_t quota_rate; 2354 int64_t rate ; 2355 int max_try_count = 20; 2356 int hit = 0; 2357 2358 /* Start vm for vcpu dirtylimit test */ 2359 vm = dirtylimit_start_vm(); 2360 2361 /* Wait for the first serial output from the vm*/ 2362 wait_for_serial("vm_serial"); 2363 2364 /* Do dirtyrate measurement with calc time equals 1s */ 2365 calc_dirty_rate(vm, 1); 2366 2367 /* Sleep calc time and wait for calc dirtyrate complete */ 2368 wait_for_calc_dirtyrate_complete(vm, 1); 2369 2370 /* Query original dirty page rate */ 2371 origin_rate = get_dirty_rate(vm); 2372 2373 /* VM booted from bootsect should dirty memory steadily */ 2374 assert(origin_rate != 0); 2375 2376 /* Setup quota dirty page rate at half of origin */ 2377 quota_rate = origin_rate / 2; 2378 2379 /* Set dirtylimit */ 2380 dirtylimit_set_all(vm, quota_rate); 2381 2382 /* 2383 * Check if set-vcpu-dirty-limit and query-vcpu-dirty-limit 2384 * works literally 2385 */ 2386 g_assert_cmpint(quota_rate, ==, get_limit_rate(vm)); 2387 2388 /* Sleep a bit to check if it take effect */ 2389 usleep(2000000); 2390 2391 /* 2392 * Check if dirtylimit take effect realistically, set the 2393 * timeout with 20 s(max_try_count * 1s), if dirtylimit 2394 * doesn't take effect, fail test. 2395 */ 2396 while (--max_try_count) { 2397 calc_dirty_rate(vm, 1); 2398 wait_for_calc_dirtyrate_complete(vm, 1); 2399 rate = get_dirty_rate(vm); 2400 2401 /* 2402 * Assume hitting if current rate is less 2403 * than quota rate (within accepting error) 2404 */ 2405 if (rate < (quota_rate + DIRTYLIMIT_TOLERANCE_RANGE)) { 2406 hit = 1; 2407 break; 2408 } 2409 } 2410 2411 g_assert_cmpint(hit, ==, 1); 2412 2413 hit = 0; 2414 max_try_count = 20; 2415 2416 /* Check if dirtylimit cancellation take effect */ 2417 cancel_vcpu_dirty_limit(vm); 2418 while (--max_try_count) { 2419 calc_dirty_rate(vm, 1); 2420 wait_for_calc_dirtyrate_complete(vm, 1); 2421 rate = get_dirty_rate(vm); 2422 2423 /* 2424 * Assume dirtylimit be canceled if current rate is 2425 * greater than quota rate (within accepting error) 2426 */ 2427 if (rate > (quota_rate + DIRTYLIMIT_TOLERANCE_RANGE)) { 2428 hit = 1; 2429 break; 2430 } 2431 } 2432 2433 g_assert_cmpint(hit, ==, 1); 2434 dirtylimit_stop_vm(vm); 2435 } 2436 2437 static bool kvm_dirty_ring_supported(void) 2438 { 2439 #if defined(__linux__) && defined(HOST_X86_64) 2440 int ret, kvm_fd = open("/dev/kvm", O_RDONLY); 2441 2442 if (kvm_fd < 0) { 2443 return false; 2444 } 2445 2446 ret = ioctl(kvm_fd, KVM_CHECK_EXTENSION, KVM_CAP_DIRTY_LOG_RING); 2447 close(kvm_fd); 2448 2449 /* We test with 4096 slots */ 2450 if (ret < 4096) { 2451 return false; 2452 } 2453 2454 return true; 2455 #else 2456 return false; 2457 #endif 2458 } 2459 2460 int main(int argc, char **argv) 2461 { 2462 const bool has_kvm = qtest_has_accel("kvm"); 2463 const bool has_uffd = ufd_version_check(); 2464 const char *arch = qtest_get_arch(); 2465 g_autoptr(GError) err = NULL; 2466 int ret; 2467 2468 g_test_init(&argc, &argv, NULL); 2469 2470 /* 2471 * On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG 2472 * is touchy due to race conditions on dirty bits (especially on PPC for 2473 * some reason) 2474 */ 2475 if (g_str_equal(arch, "ppc64") && 2476 (!has_kvm || access("/sys/module/kvm_hv", F_OK))) { 2477 g_test_message("Skipping test: kvm_hv not available"); 2478 return g_test_run(); 2479 } 2480 2481 /* 2482 * Similar to ppc64, s390x seems to be touchy with TCG, so disable it 2483 * there until the problems are resolved 2484 */ 2485 if (g_str_equal(arch, "s390x") && !has_kvm) { 2486 g_test_message("Skipping test: s390x host with KVM is required"); 2487 return g_test_run(); 2488 } 2489 2490 tmpfs = g_dir_make_tmp("migration-test-XXXXXX", &err); 2491 if (!tmpfs) { 2492 g_test_message("Can't create temporary directory in %s: %s", 2493 g_get_tmp_dir(), err->message); 2494 } 2495 g_assert(tmpfs); 2496 2497 module_call_init(MODULE_INIT_QOM); 2498 2499 if (has_uffd) { 2500 qtest_add_func("/migration/postcopy/plain", test_postcopy); 2501 qtest_add_func("/migration/postcopy/recovery/plain", 2502 test_postcopy_recovery); 2503 qtest_add_func("/migration/postcopy/preempt/plain", test_postcopy_preempt); 2504 qtest_add_func("/migration/postcopy/preempt/recovery/plain", 2505 test_postcopy_preempt_recovery); 2506 } 2507 2508 qtest_add_func("/migration/bad_dest", test_baddest); 2509 qtest_add_func("/migration/precopy/unix/plain", test_precopy_unix_plain); 2510 qtest_add_func("/migration/precopy/unix/xbzrle", test_precopy_unix_xbzrle); 2511 #ifdef CONFIG_GNUTLS 2512 qtest_add_func("/migration/precopy/unix/tls/psk", 2513 test_precopy_unix_tls_psk); 2514 2515 if (has_uffd) { 2516 /* 2517 * NOTE: psk test is enough for postcopy, as other types of TLS 2518 * channels are tested under precopy. Here what we want to test is the 2519 * general postcopy path that has TLS channel enabled. 2520 */ 2521 qtest_add_func("/migration/postcopy/tls/psk", test_postcopy_tls_psk); 2522 qtest_add_func("/migration/postcopy/recovery/tls/psk", 2523 test_postcopy_recovery_tls_psk); 2524 qtest_add_func("/migration/postcopy/preempt/tls/psk", 2525 test_postcopy_preempt_tls_psk); 2526 qtest_add_func("/migration/postcopy/preempt/recovery/tls/psk", 2527 test_postcopy_preempt_all); 2528 } 2529 #ifdef CONFIG_TASN1 2530 qtest_add_func("/migration/precopy/unix/tls/x509/default-host", 2531 test_precopy_unix_tls_x509_default_host); 2532 qtest_add_func("/migration/precopy/unix/tls/x509/override-host", 2533 test_precopy_unix_tls_x509_override_host); 2534 #endif /* CONFIG_TASN1 */ 2535 #endif /* CONFIG_GNUTLS */ 2536 2537 qtest_add_func("/migration/precopy/tcp/plain", test_precopy_tcp_plain); 2538 #ifdef CONFIG_GNUTLS 2539 qtest_add_func("/migration/precopy/tcp/tls/psk/match", 2540 test_precopy_tcp_tls_psk_match); 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 qtest_add_func("/migration/multifd/tcp/tls/psk/match", 2585 test_multifd_tcp_tls_psk_match); 2586 qtest_add_func("/migration/multifd/tcp/tls/psk/mismatch", 2587 test_multifd_tcp_tls_psk_mismatch); 2588 #ifdef CONFIG_TASN1 2589 qtest_add_func("/migration/multifd/tcp/tls/x509/default-host", 2590 test_multifd_tcp_tls_x509_default_host); 2591 qtest_add_func("/migration/multifd/tcp/tls/x509/override-host", 2592 test_multifd_tcp_tls_x509_override_host); 2593 qtest_add_func("/migration/multifd/tcp/tls/x509/mismatch-host", 2594 test_multifd_tcp_tls_x509_mismatch_host); 2595 qtest_add_func("/migration/multifd/tcp/tls/x509/allow-anon-client", 2596 test_multifd_tcp_tls_x509_allow_anon_client); 2597 qtest_add_func("/migration/multifd/tcp/tls/x509/reject-anon-client", 2598 test_multifd_tcp_tls_x509_reject_anon_client); 2599 #endif /* CONFIG_TASN1 */ 2600 #endif /* CONFIG_GNUTLS */ 2601 2602 if (g_str_equal(arch, "x86_64") && has_kvm && kvm_dirty_ring_supported()) { 2603 qtest_add_func("/migration/dirty_ring", 2604 test_precopy_unix_dirty_ring); 2605 qtest_add_func("/migration/vcpu_dirty_limit", 2606 test_vcpu_dirty_limit); 2607 } 2608 2609 ret = g_test_run(); 2610 2611 g_assert_cmpint(ret, ==, 0); 2612 2613 ret = rmdir(tmpfs); 2614 if (ret != 0) { 2615 g_test_message("unable to rmdir: path (%s): %s", 2616 tmpfs, strerror(errno)); 2617 } 2618 g_free(tmpfs); 2619 2620 return ret; 2621 } 2622