1 /* 2 * QEMU System Emulator 3 * 4 * Copyright (c) 2003-2008 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #include "qemu/osdep.h" 26 #include "qemu/help-texts.h" 27 #include "qemu/datadir.h" 28 #include "qemu/units.h" 29 #include "exec/cpu-common.h" 30 #include "exec/page-vary.h" 31 #include "hw/qdev-properties.h" 32 #include "qapi/compat-policy.h" 33 #include "qapi/error.h" 34 #include "qobject/qdict.h" 35 #include "qobject/qstring.h" 36 #include "qobject/qjson.h" 37 #include "qemu-version.h" 38 #include "qemu/cutils.h" 39 #include "qemu/help_option.h" 40 #include "qemu/hw-version.h" 41 #include "qemu/uuid.h" 42 #include "system/reset.h" 43 #include "system/runstate.h" 44 #include "system/runstate-action.h" 45 #include "system/seccomp.h" 46 #include "system/tcg.h" 47 #include "system/xen.h" 48 49 #include "qemu/error-report.h" 50 #include "qemu/sockets.h" 51 #include "qemu/accel.h" 52 #include "qemu/async-teardown.h" 53 #include "hw/usb.h" 54 #include "hw/isa/isa.h" 55 #include "hw/scsi/scsi.h" 56 #include "hw/sd/sd.h" 57 #include "hw/display/vga.h" 58 #include "hw/firmware/smbios.h" 59 #include "hw/acpi/acpi.h" 60 #include "hw/xen/xen.h" 61 #include "hw/loader.h" 62 #include "monitor/qdev.h" 63 #include "net/net.h" 64 #include "net/slirp.h" 65 #include "monitor/monitor.h" 66 #include "ui/console.h" 67 #include "ui/input.h" 68 #include "system/system.h" 69 #include "system/numa.h" 70 #include "system/hostmem.h" 71 #include "exec/gdbstub.h" 72 #include "gdbstub/enums.h" 73 #include "qemu/timer.h" 74 #include "chardev/char.h" 75 #include "qemu/bitmap.h" 76 #include "qemu/log.h" 77 #include "system/blockdev.h" 78 #include "hw/block/block.h" 79 #include "hw/i386/x86.h" 80 #include "hw/i386/pc.h" 81 #include "migration/cpr.h" 82 #include "migration/misc.h" 83 #include "migration/snapshot.h" 84 #include "system/tpm.h" 85 #include "system/dma.h" 86 #include "hw/audio/soundhw.h" 87 #include "audio/audio.h" 88 #include "system/cpus.h" 89 #include "system/cpu-timers.h" 90 #include "migration/colo.h" 91 #include "migration/postcopy-ram.h" 92 #include "system/kvm.h" 93 #include "qapi/qobject-input-visitor.h" 94 #include "qemu/option.h" 95 #include "qemu/config-file.h" 96 #include "qemu/main-loop.h" 97 #ifdef CONFIG_VIRTFS 98 #include "fsdev/qemu-fsdev.h" 99 #endif 100 #include "system/qtest.h" 101 #ifdef CONFIG_TCG 102 #include "tcg/perf.h" 103 #endif 104 105 #include "disas/disas.h" 106 107 #include "trace.h" 108 #include "trace/control.h" 109 #include "qemu/plugin.h" 110 #include "qemu/queue.h" 111 #include "system/arch_init.h" 112 #include "system/confidential-guest-support.h" 113 114 #include "ui/qemu-spice.h" 115 #include "qapi/string-input-visitor.h" 116 #include "qapi/opts-visitor.h" 117 #include "qapi/clone-visitor.h" 118 #include "qom/object_interfaces.h" 119 #include "semihosting/semihost.h" 120 #include "crypto/init.h" 121 #include "system/replay.h" 122 #include "qapi/qapi-events-run-state.h" 123 #include "qapi/qapi-types-audio.h" 124 #include "qapi/qapi-visit-audio.h" 125 #include "qapi/qapi-visit-block-core.h" 126 #include "qapi/qapi-visit-compat.h" 127 #include "qapi/qapi-visit-machine.h" 128 #include "qapi/qapi-visit-migration.h" 129 #include "qapi/qapi-visit-ui.h" 130 #include "qapi/qapi-commands-block-core.h" 131 #include "qapi/qapi-commands-migration.h" 132 #include "qapi/qapi-commands-misc.h" 133 #include "qapi/qapi-visit-qom.h" 134 #include "qapi/qapi-commands-ui.h" 135 #include "block/qdict.h" 136 #include "qapi/qmp/qerror.h" 137 #include "system/iothread.h" 138 #include "qemu/guest-random.h" 139 #include "qemu/keyval.h" 140 141 #define MAX_VIRTIO_CONSOLES 1 142 143 typedef struct BlockdevOptionsQueueEntry { 144 BlockdevOptions *bdo; 145 Location loc; 146 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry; 147 } BlockdevOptionsQueueEntry; 148 149 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue; 150 151 typedef struct ObjectOption { 152 ObjectOptions *opts; 153 QTAILQ_ENTRY(ObjectOption) next; 154 } ObjectOption; 155 156 typedef struct DeviceOption { 157 QDict *opts; 158 Location loc; 159 QTAILQ_ENTRY(DeviceOption) next; 160 } DeviceOption; 161 162 static const char *cpu_option; 163 static const char *mem_path; 164 static const char *incoming; 165 static const char *incoming_str[MIGRATION_CHANNEL_TYPE__MAX]; 166 static MigrationChannel *incoming_channels[MIGRATION_CHANNEL_TYPE__MAX]; 167 static const char *loadvm; 168 static const char *accelerators; 169 static bool have_custom_ram_size; 170 static const char *ram_memdev_id; 171 static QDict *machine_opts_dict; 172 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts); 173 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts); 174 static int display_remote; 175 static int snapshot; 176 static bool preconfig_requested; 177 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list); 178 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue); 179 static bool nographic = false; 180 static int mem_prealloc; /* force preallocation of physical target memory */ 181 static const char *vga_model = NULL; 182 static DisplayOptions dpy; 183 static int num_serial_hds; 184 static Chardev **serial_hds; 185 static const char *log_mask; 186 static const char *log_file; 187 static bool list_data_dirs; 188 static const char *qtest_chrdev; 189 static const char *qtest_log; 190 191 static int has_defaults = 1; 192 static int default_audio = 1; 193 static int default_serial = 1; 194 static int default_parallel = 1; 195 static int default_monitor = 1; 196 static int default_floppy = 1; 197 static int default_cdrom = 1; 198 static bool auto_create_sdcard = true; 199 static int default_vga = 1; 200 static int default_net = 1; 201 202 static const struct { 203 const char *driver; 204 int *flag; 205 } default_list[] = { 206 { .driver = "xen-console", .flag = &default_serial }, 207 { .driver = "isa-serial", .flag = &default_serial }, 208 { .driver = "isa-parallel", .flag = &default_parallel }, 209 { .driver = "isa-fdc", .flag = &default_floppy }, 210 { .driver = "floppy", .flag = &default_floppy }, 211 { .driver = "ide-cd", .flag = &default_cdrom }, 212 { .driver = "ide-hd", .flag = &default_cdrom }, 213 { .driver = "scsi-cd", .flag = &default_cdrom }, 214 { .driver = "scsi-hd", .flag = &default_cdrom }, 215 { .driver = "VGA", .flag = &default_vga }, 216 { .driver = "isa-vga", .flag = &default_vga }, 217 { .driver = "cirrus-vga", .flag = &default_vga }, 218 { .driver = "isa-cirrus-vga", .flag = &default_vga }, 219 { .driver = "vmware-svga", .flag = &default_vga }, 220 { .driver = "qxl-vga", .flag = &default_vga }, 221 { .driver = "virtio-vga", .flag = &default_vga }, 222 { .driver = "ati-vga", .flag = &default_vga }, 223 { .driver = "vhost-user-vga", .flag = &default_vga }, 224 { .driver = "virtio-vga-gl", .flag = &default_vga }, 225 { .driver = "virtio-vga-rutabaga", .flag = &default_vga }, 226 }; 227 228 static QemuOptsList qemu_rtc_opts = { 229 .name = "rtc", 230 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head), 231 .merge_lists = true, 232 .desc = { 233 { 234 .name = "base", 235 .type = QEMU_OPT_STRING, 236 },{ 237 .name = "clock", 238 .type = QEMU_OPT_STRING, 239 },{ 240 .name = "driftfix", 241 .type = QEMU_OPT_STRING, 242 }, 243 { /* end of list */ } 244 }, 245 }; 246 247 static QemuOptsList qemu_option_rom_opts = { 248 .name = "option-rom", 249 .implied_opt_name = "romfile", 250 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head), 251 .desc = { 252 { 253 .name = "bootindex", 254 .type = QEMU_OPT_NUMBER, 255 }, { 256 .name = "romfile", 257 .type = QEMU_OPT_STRING, 258 }, 259 { /* end of list */ } 260 }, 261 }; 262 263 static QemuOptsList qemu_accel_opts = { 264 .name = "accel", 265 .implied_opt_name = "accel", 266 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head), 267 .desc = { 268 /* 269 * no elements => accept any 270 * sanity checking will happen later 271 * when setting accelerator properties 272 */ 273 { } 274 }, 275 }; 276 277 static QemuOptsList qemu_boot_opts = { 278 .name = "boot-opts", 279 .implied_opt_name = "order", 280 .merge_lists = true, 281 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head), 282 .desc = { 283 { 284 .name = "order", 285 .type = QEMU_OPT_STRING, 286 }, { 287 .name = "once", 288 .type = QEMU_OPT_STRING, 289 }, { 290 .name = "menu", 291 .type = QEMU_OPT_BOOL, 292 }, { 293 .name = "splash", 294 .type = QEMU_OPT_STRING, 295 }, { 296 .name = "splash-time", 297 .type = QEMU_OPT_NUMBER, 298 }, { 299 .name = "reboot-timeout", 300 .type = QEMU_OPT_NUMBER, 301 }, { 302 .name = "strict", 303 .type = QEMU_OPT_BOOL, 304 }, 305 { /*End of list */ } 306 }, 307 }; 308 309 static QemuOptsList qemu_add_fd_opts = { 310 .name = "add-fd", 311 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head), 312 .desc = { 313 { 314 .name = "fd", 315 .type = QEMU_OPT_NUMBER, 316 .help = "file descriptor of which a duplicate is added to fd set", 317 },{ 318 .name = "set", 319 .type = QEMU_OPT_NUMBER, 320 .help = "ID of the fd set to add fd to", 321 },{ 322 .name = "opaque", 323 .type = QEMU_OPT_STRING, 324 .help = "free-form string used to describe fd", 325 }, 326 { /* end of list */ } 327 }, 328 }; 329 330 static QemuOptsList qemu_object_opts = { 331 .name = "object", 332 .implied_opt_name = "qom-type", 333 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head), 334 .desc = { 335 { } 336 }, 337 }; 338 339 static QemuOptsList qemu_tpmdev_opts = { 340 .name = "tpmdev", 341 .implied_opt_name = "type", 342 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head), 343 .desc = { 344 /* options are defined in the TPM backends */ 345 { /* end of list */ } 346 }, 347 }; 348 349 static QemuOptsList qemu_overcommit_opts = { 350 .name = "overcommit", 351 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head), 352 .desc = { 353 { 354 .name = "mem-lock", 355 .type = QEMU_OPT_BOOL, 356 }, 357 { 358 .name = "cpu-pm", 359 .type = QEMU_OPT_BOOL, 360 }, 361 { /* end of list */ } 362 }, 363 }; 364 365 static QemuOptsList qemu_msg_opts = { 366 .name = "msg", 367 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head), 368 .desc = { 369 { 370 .name = "timestamp", 371 .type = QEMU_OPT_BOOL, 372 }, 373 { 374 .name = "guest-name", 375 .type = QEMU_OPT_BOOL, 376 .help = "Prepends guest name for error messages but only if " 377 "-name guest is set otherwise option is ignored\n", 378 }, 379 { /* end of list */ } 380 }, 381 }; 382 383 static QemuOptsList qemu_name_opts = { 384 .name = "name", 385 .implied_opt_name = "guest", 386 .merge_lists = true, 387 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head), 388 .desc = { 389 { 390 .name = "guest", 391 .type = QEMU_OPT_STRING, 392 .help = "Sets the name of the guest.\n" 393 "This name will be displayed in the SDL window caption.\n" 394 "The name will also be used for the VNC server", 395 }, { 396 .name = "process", 397 .type = QEMU_OPT_STRING, 398 .help = "Sets the name of the QEMU process, as shown in top etc", 399 }, { 400 .name = "debug-threads", 401 .type = QEMU_OPT_BOOL, 402 .help = "When enabled, name the individual threads; defaults off.\n" 403 "NOTE: The thread names are for debugging and not a\n" 404 "stable API.", 405 }, 406 { /* End of list */ } 407 }, 408 }; 409 410 static QemuOptsList qemu_mem_opts = { 411 .name = "memory", 412 .implied_opt_name = "size", 413 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head), 414 .merge_lists = true, 415 .desc = { 416 { 417 .name = "size", 418 .type = QEMU_OPT_SIZE, 419 }, 420 { 421 .name = "slots", 422 .type = QEMU_OPT_NUMBER, 423 }, 424 { 425 .name = "maxmem", 426 .type = QEMU_OPT_SIZE, 427 }, 428 { /* end of list */ } 429 }, 430 }; 431 432 static QemuOptsList qemu_icount_opts = { 433 .name = "icount", 434 .implied_opt_name = "shift", 435 .merge_lists = true, 436 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head), 437 .desc = { 438 { 439 .name = "shift", 440 .type = QEMU_OPT_STRING, 441 }, { 442 .name = "align", 443 .type = QEMU_OPT_BOOL, 444 }, { 445 .name = "sleep", 446 .type = QEMU_OPT_BOOL, 447 }, { 448 .name = "rr", 449 .type = QEMU_OPT_STRING, 450 }, { 451 .name = "rrfile", 452 .type = QEMU_OPT_STRING, 453 }, { 454 .name = "rrsnapshot", 455 .type = QEMU_OPT_STRING, 456 }, 457 { /* end of list */ } 458 }, 459 }; 460 461 static QemuOptsList qemu_fw_cfg_opts = { 462 .name = "fw_cfg", 463 .implied_opt_name = "name", 464 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head), 465 .desc = { 466 { 467 .name = "name", 468 .type = QEMU_OPT_STRING, 469 .help = "Sets the fw_cfg name of the blob to be inserted", 470 }, { 471 .name = "file", 472 .type = QEMU_OPT_STRING, 473 .help = "Sets the name of the file from which " 474 "the fw_cfg blob will be loaded", 475 }, { 476 .name = "string", 477 .type = QEMU_OPT_STRING, 478 .help = "Sets content of the blob to be inserted from a string", 479 }, { 480 .name = "gen_id", 481 .type = QEMU_OPT_STRING, 482 .help = "Sets id of the object generating the fw_cfg blob " 483 "to be inserted", 484 }, 485 { /* end of list */ } 486 }, 487 }; 488 489 static QemuOptsList qemu_action_opts = { 490 .name = "action", 491 .merge_lists = true, 492 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head), 493 .desc = { 494 { 495 .name = "shutdown", 496 .type = QEMU_OPT_STRING, 497 },{ 498 .name = "reboot", 499 .type = QEMU_OPT_STRING, 500 },{ 501 .name = "panic", 502 .type = QEMU_OPT_STRING, 503 },{ 504 .name = "watchdog", 505 .type = QEMU_OPT_STRING, 506 }, 507 { /* end of list */ } 508 }, 509 }; 510 511 const char *qemu_get_vm_name(void) 512 { 513 return qemu_name; 514 } 515 516 static void default_driver_disable(const char *driver) 517 { 518 int i; 519 520 if (!driver) { 521 return; 522 } 523 524 for (i = 0; i < ARRAY_SIZE(default_list); i++) { 525 if (strcmp(default_list[i].driver, driver) != 0) 526 continue; 527 *(default_list[i].flag) = 0; 528 } 529 } 530 531 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp) 532 { 533 const char *driver = qemu_opt_get(opts, "driver"); 534 535 default_driver_disable(driver); 536 return 0; 537 } 538 539 static void default_driver_check_json(void) 540 { 541 DeviceOption *opt; 542 543 QTAILQ_FOREACH(opt, &device_opts, next) { 544 const char *driver = qdict_get_try_str(opt->opts, "driver"); 545 default_driver_disable(driver); 546 } 547 } 548 549 static int parse_name(void *opaque, QemuOpts *opts, Error **errp) 550 { 551 const char *proc_name; 552 553 if (qemu_opt_get(opts, "debug-threads")) { 554 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false)); 555 } 556 qemu_name = qemu_opt_get(opts, "guest"); 557 558 proc_name = qemu_opt_get(opts, "process"); 559 if (proc_name) { 560 os_set_proc_name(proc_name); 561 } 562 563 return 0; 564 } 565 566 bool defaults_enabled(void) 567 { 568 return has_defaults; 569 } 570 571 #ifndef _WIN32 572 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp) 573 { 574 int fd, dupfd, flags; 575 int64_t fdset_id; 576 const char *fd_opaque = NULL; 577 AddfdInfo *fdinfo; 578 579 fd = qemu_opt_get_number(opts, "fd", -1); 580 fdset_id = qemu_opt_get_number(opts, "set", -1); 581 fd_opaque = qemu_opt_get(opts, "opaque"); 582 583 if (fd < 0) { 584 error_setg(errp, "fd option is required and must be non-negative"); 585 return -1; 586 } 587 588 if (fd <= STDERR_FILENO) { 589 error_setg(errp, "fd cannot be a standard I/O stream"); 590 return -1; 591 } 592 593 /* 594 * All fds inherited across exec() necessarily have FD_CLOEXEC 595 * clear, while qemu sets FD_CLOEXEC on all other fds used internally. 596 */ 597 flags = fcntl(fd, F_GETFD); 598 if (flags == -1 || (flags & FD_CLOEXEC)) { 599 error_setg(errp, "fd is not valid or already in use"); 600 return -1; 601 } 602 603 if (fdset_id < 0) { 604 error_setg(errp, "set option is required and must be non-negative"); 605 return -1; 606 } 607 608 #ifdef F_DUPFD_CLOEXEC 609 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0); 610 #else 611 dupfd = dup(fd); 612 if (dupfd != -1) { 613 qemu_set_cloexec(dupfd); 614 } 615 #endif 616 if (dupfd == -1) { 617 error_setg(errp, "error duplicating fd: %s", strerror(errno)); 618 return -1; 619 } 620 621 /* add the duplicate fd, and optionally the opaque string, to the fd set */ 622 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque, 623 &error_abort); 624 g_free(fdinfo); 625 626 return 0; 627 } 628 629 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp) 630 { 631 int fd; 632 633 fd = qemu_opt_get_number(opts, "fd", -1); 634 close(fd); 635 636 return 0; 637 } 638 #endif 639 640 /***********************************************************/ 641 /* QEMU Block devices */ 642 643 #define HD_OPTS "media=disk" 644 #define CDROM_OPTS "media=cdrom" 645 #define FD_OPTS "" 646 #define PFLASH_OPTS "" 647 #define MTD_OPTS "" 648 #define SD_OPTS "" 649 650 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp) 651 { 652 BlockInterfaceType *block_default_type = opaque; 653 654 return drive_new(opts, *block_default_type, errp) == NULL; 655 } 656 657 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp) 658 { 659 if (qemu_opt_get(opts, "snapshot") == NULL) { 660 qemu_opt_set(opts, "snapshot", "on", &error_abort); 661 } 662 return 0; 663 } 664 665 static void default_drive(int enable, int snapshot, BlockInterfaceType type, 666 int index, const char *optstr) 667 { 668 QemuOpts *opts; 669 DriveInfo *dinfo; 670 671 if (!enable || drive_get_by_index(type, index)) { 672 return; 673 } 674 675 opts = drive_add(type, index, NULL, optstr); 676 if (snapshot) { 677 drive_enable_snapshot(NULL, opts, NULL); 678 } 679 680 dinfo = drive_new(opts, type, &error_abort); 681 dinfo->is_default = true; 682 683 } 684 685 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue, 686 MachineClass *machine_class, int snapshot) 687 { 688 /* 689 * If the currently selected machine wishes to override the 690 * units-per-bus property of its default HBA interface type, do so 691 * now. 692 */ 693 if (machine_class->units_per_default_bus) { 694 override_max_devs(machine_class->block_default_type, 695 machine_class->units_per_default_bus); 696 } 697 698 /* open the virtual block devices */ 699 while (!QSIMPLEQ_EMPTY(bdo_queue)) { 700 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue); 701 702 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry); 703 loc_push_restore(&bdo->loc); 704 qmp_blockdev_add(bdo->bdo, &error_fatal); 705 loc_pop(&bdo->loc); 706 qapi_free_BlockdevOptions(bdo->bdo); 707 g_free(bdo); 708 } 709 if (snapshot) { 710 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, 711 NULL, NULL); 712 } 713 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, 714 &machine_class->block_default_type, &error_fatal)) { 715 /* We printed help */ 716 exit(0); 717 } 718 719 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2, 720 CDROM_OPTS); 721 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS); 722 default_drive(auto_create_sdcard, snapshot, IF_SD, 0, SD_OPTS); 723 724 } 725 726 static QemuOptsList qemu_smp_opts = { 727 .name = "smp-opts", 728 .implied_opt_name = "cpus", 729 .merge_lists = true, 730 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head), 731 .desc = { 732 { 733 .name = "cpus", 734 .type = QEMU_OPT_NUMBER, 735 }, { 736 .name = "drawers", 737 .type = QEMU_OPT_NUMBER, 738 }, { 739 .name = "books", 740 .type = QEMU_OPT_NUMBER, 741 }, { 742 .name = "sockets", 743 .type = QEMU_OPT_NUMBER, 744 }, { 745 .name = "dies", 746 .type = QEMU_OPT_NUMBER, 747 }, { 748 .name = "clusters", 749 .type = QEMU_OPT_NUMBER, 750 }, { 751 .name = "modules", 752 .type = QEMU_OPT_NUMBER, 753 }, { 754 .name = "cores", 755 .type = QEMU_OPT_NUMBER, 756 }, { 757 .name = "threads", 758 .type = QEMU_OPT_NUMBER, 759 }, { 760 .name = "maxcpus", 761 .type = QEMU_OPT_NUMBER, 762 }, 763 { /*End of list */ } 764 }, 765 }; 766 767 #if defined(CONFIG_POSIX) 768 static QemuOptsList qemu_run_with_opts = { 769 .name = "run-with", 770 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head), 771 .desc = { 772 #if defined(CONFIG_LINUX) 773 { 774 .name = "async-teardown", 775 .type = QEMU_OPT_BOOL, 776 }, 777 #endif 778 { 779 .name = "chroot", 780 .type = QEMU_OPT_STRING, 781 }, 782 { 783 .name = "user", 784 .type = QEMU_OPT_STRING, 785 }, 786 { /* end of list */ } 787 }, 788 }; 789 790 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts) 791 792 #else 793 794 #define qemu_add_run_with_opts() 795 796 #endif /* CONFIG_POSIX */ 797 798 static void realtime_init(void) 799 { 800 if (enable_mlock) { 801 if (os_mlock() < 0) { 802 error_report("locking memory failed"); 803 exit(1); 804 } 805 } 806 } 807 808 809 static void configure_msg(QemuOpts *opts) 810 { 811 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false); 812 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false); 813 } 814 815 816 /***********************************************************/ 817 /* USB devices */ 818 819 static bool usb_parse(const char *cmdline, Error **errp) 820 { 821 g_assert(machine_usb(current_machine)); 822 823 if (!usbdevice_create(cmdline)) { 824 error_setg(errp, "could not add USB device '%s'", cmdline); 825 return false; 826 } 827 return true; 828 } 829 830 /***********************************************************/ 831 /* machine registration */ 832 833 static MachineClass *find_machine(const char *name, GSList *machines) 834 { 835 GSList *el; 836 837 for (el = machines; el; el = el->next) { 838 MachineClass *mc = el->data; 839 840 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) { 841 return mc; 842 } 843 } 844 845 return NULL; 846 } 847 848 static MachineClass *find_default_machine(GSList *machines) 849 { 850 GSList *el; 851 MachineClass *default_machineclass = NULL; 852 853 for (el = machines; el; el = el->next) { 854 MachineClass *mc = el->data; 855 856 if (mc->is_default) { 857 assert(default_machineclass == NULL && "Multiple default machines"); 858 default_machineclass = mc; 859 } 860 } 861 862 return default_machineclass; 863 } 864 865 static void version(void) 866 { 867 printf("QEMU emulator version " QEMU_FULL_VERSION "\n" 868 QEMU_COPYRIGHT "\n"); 869 } 870 871 static void help(int exitcode) 872 { 873 version(); 874 printf("usage: %s [options] [disk_image]\n\n" 875 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n", 876 g_get_prgname()); 877 878 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 879 if ((arch_mask) & arch_type) \ 880 fputs(opt_help, stdout); 881 882 #define ARCHHEADING(text, arch_mask) \ 883 if ((arch_mask) & arch_type) \ 884 puts(stringify(text)); 885 886 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL) 887 888 #include "qemu-options.def" 889 890 printf("\nDuring emulation, the following keys are useful:\n" 891 "ctrl-alt-f toggle full screen\n" 892 "ctrl-alt-n switch to virtual console 'n'\n" 893 "ctrl-alt-g toggle mouse and keyboard grab\n" 894 "\n" 895 "When using -nographic, press 'ctrl-a h' to get some help.\n" 896 "\n" 897 QEMU_HELP_BOTTOM "\n"); 898 899 exit(exitcode); 900 } 901 902 enum { 903 904 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 905 opt_enum, 906 #define DEFHEADING(text) 907 #define ARCHHEADING(text, arch_mask) 908 909 #include "qemu-options.def" 910 }; 911 912 #define HAS_ARG 0x0001 913 914 typedef struct QEMUOption { 915 const char *name; 916 int flags; 917 int index; 918 uint32_t arch_mask; 919 } QEMUOption; 920 921 static const QEMUOption qemu_options[] = { 922 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL }, 923 924 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 925 { option, opt_arg, opt_enum, arch_mask }, 926 #define DEFHEADING(text) 927 #define ARCHHEADING(text, arch_mask) 928 929 #include "qemu-options.def" 930 { /* end of list */ } 931 }; 932 933 typedef struct VGAInterfaceInfo { 934 const char *opt_name; /* option name */ 935 const char *name; /* human-readable name */ 936 /* Class names indicating that support is available. 937 * If no class is specified, the interface is always available */ 938 const char *class_names[2]; 939 } VGAInterfaceInfo; 940 941 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = { 942 [VGA_NONE] = { 943 .opt_name = "none", 944 .name = "no graphic card", 945 }, 946 [VGA_STD] = { 947 .opt_name = "std", 948 .name = "standard VGA", 949 .class_names = { "VGA", "isa-vga" }, 950 }, 951 [VGA_CIRRUS] = { 952 .opt_name = "cirrus", 953 .name = "Cirrus VGA", 954 .class_names = { "cirrus-vga", "isa-cirrus-vga" }, 955 }, 956 [VGA_VMWARE] = { 957 .opt_name = "vmware", 958 .name = "VMWare SVGA", 959 .class_names = { "vmware-svga" }, 960 }, 961 [VGA_VIRTIO] = { 962 .opt_name = "virtio", 963 .name = "Virtio VGA", 964 .class_names = { "virtio-vga" }, 965 }, 966 [VGA_QXL] = { 967 .opt_name = "qxl", 968 .name = "QXL VGA", 969 .class_names = { "qxl-vga" }, 970 }, 971 [VGA_TCX] = { 972 .opt_name = "tcx", 973 .name = "TCX framebuffer", 974 .class_names = { "sun-tcx" }, 975 }, 976 [VGA_CG3] = { 977 .opt_name = "cg3", 978 .name = "CG3 framebuffer", 979 .class_names = { "cgthree" }, 980 }, 981 #ifdef CONFIG_XEN_BACKEND 982 [VGA_XENFB] = { 983 .opt_name = "xenfb", 984 .name = "Xen paravirtualized framebuffer", 985 }, 986 #endif 987 }; 988 989 static bool vga_interface_available(VGAInterfaceType t) 990 { 991 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 992 993 assert(t < VGA_TYPE_MAX); 994 995 if (!ti->class_names[0] || module_object_class_by_name(ti->class_names[0])) { 996 return true; 997 } 998 999 if (ti->class_names[1] && module_object_class_by_name(ti->class_names[1])) { 1000 return true; 1001 } 1002 1003 return false; 1004 } 1005 1006 static const char * 1007 get_default_vga_model(const MachineClass *machine_class) 1008 { 1009 if (machine_class->default_display) { 1010 for (int t = 0; t < VGA_TYPE_MAX; t++) { 1011 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1012 1013 if (ti->opt_name && vga_interface_available(t) && 1014 g_str_equal(ti->opt_name, machine_class->default_display)) { 1015 return machine_class->default_display; 1016 } 1017 } 1018 1019 warn_report_once("Default display '%s' is not available in this binary", 1020 machine_class->default_display); 1021 return NULL; 1022 } else if (vga_interface_available(VGA_CIRRUS)) { 1023 return "cirrus"; 1024 } else if (vga_interface_available(VGA_STD)) { 1025 return "std"; 1026 } 1027 1028 return NULL; 1029 } 1030 1031 static void select_vgahw(const MachineClass *machine_class, const char *p) 1032 { 1033 const char *opts; 1034 int t; 1035 1036 if (g_str_equal(p, "help")) { 1037 const char *def = get_default_vga_model(machine_class); 1038 1039 for (t = 0; t < VGA_TYPE_MAX; t++) { 1040 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1041 1042 if (vga_interface_available(t) && ti->opt_name) { 1043 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "", 1044 (def && g_str_equal(ti->opt_name, def)) ? 1045 " (default)" : ""); 1046 } 1047 } 1048 exit(0); 1049 } 1050 1051 assert(vga_interface_type == VGA_NONE); 1052 for (t = 0; t < VGA_TYPE_MAX; t++) { 1053 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1054 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) { 1055 if (!vga_interface_available(t)) { 1056 error_report("%s not available", ti->name); 1057 exit(1); 1058 } 1059 vga_interface_type = t; 1060 break; 1061 } 1062 } 1063 if (t == VGA_TYPE_MAX) { 1064 invalid_vga: 1065 error_report("unknown vga type: %s", p); 1066 exit(1); 1067 } 1068 while (*opts) { 1069 const char *nextopt; 1070 1071 if (strstart(opts, ",retrace=", &nextopt)) { 1072 opts = nextopt; 1073 if (strstart(opts, "dumb", &nextopt)) 1074 vga_retrace_method = VGA_RETRACE_DUMB; 1075 else if (strstart(opts, "precise", &nextopt)) 1076 vga_retrace_method = VGA_RETRACE_PRECISE; 1077 else goto invalid_vga; 1078 } else goto invalid_vga; 1079 opts = nextopt; 1080 } 1081 } 1082 1083 static void parse_display_qapi(const char *str) 1084 { 1085 DisplayOptions *opts; 1086 Visitor *v; 1087 1088 v = qobject_input_visitor_new_str(str, "type", &error_fatal); 1089 1090 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); 1091 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts); 1092 1093 qapi_free_DisplayOptions(opts); 1094 visit_free(v); 1095 } 1096 1097 DisplayOptions *qmp_query_display_options(Error **errp) 1098 { 1099 return QAPI_CLONE(DisplayOptions, &dpy); 1100 } 1101 1102 static void parse_display(const char *p) 1103 { 1104 if (is_help_option(p)) { 1105 qemu_display_help(); 1106 exit(0); 1107 } 1108 1109 #ifdef CONFIG_VNC 1110 const char *opts; 1111 1112 if (strstart(p, "vnc", &opts)) { 1113 /* 1114 * vnc isn't a (local) DisplayType but a protocol for remote 1115 * display access. 1116 */ 1117 if (*opts == '=') { 1118 vnc_parse(opts + 1); 1119 display_remote++; 1120 } else { 1121 error_report("VNC requires a display argument vnc=<display>"); 1122 exit(1); 1123 } 1124 return; 1125 } 1126 #endif 1127 1128 parse_display_qapi(p); 1129 } 1130 1131 static inline bool nonempty_str(const char *str) 1132 { 1133 return str && *str; 1134 } 1135 1136 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) 1137 { 1138 gchar *buf; 1139 size_t size; 1140 const char *name, *file, *str, *gen_id; 1141 FWCfgState *fw_cfg = (FWCfgState *) opaque; 1142 1143 if (fw_cfg == NULL) { 1144 error_setg(errp, "fw_cfg device not available"); 1145 return -1; 1146 } 1147 name = qemu_opt_get(opts, "name"); 1148 file = qemu_opt_get(opts, "file"); 1149 str = qemu_opt_get(opts, "string"); 1150 gen_id = qemu_opt_get(opts, "gen_id"); 1151 1152 /* we need the name, and exactly one of: file, content string, gen_id */ 1153 if (!nonempty_str(name) || 1154 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) { 1155 error_setg(errp, "name, plus exactly one of file," 1156 " string and gen_id, are needed"); 1157 return -1; 1158 } 1159 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { 1160 error_setg(errp, "name too long (max. %d char)", 1161 FW_CFG_MAX_FILE_PATH - 1); 1162 return -1; 1163 } 1164 if (nonempty_str(gen_id)) { 1165 /* 1166 * In this particular case where the content is populated 1167 * internally, the "etc/" namespace protection is relaxed, 1168 * so do not emit a warning. 1169 */ 1170 } else if (strncmp(name, "opt/", 4) != 0) { 1171 warn_report("externally provided fw_cfg item names " 1172 "should be prefixed with \"opt/\""); 1173 } 1174 if (nonempty_str(str)) { 1175 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */ 1176 buf = g_memdup(str, size); 1177 } else if (nonempty_str(gen_id)) { 1178 if (!fw_cfg_add_file_from_generator(fw_cfg, object_get_objects_root(), 1179 gen_id, name, errp)) { 1180 return -1; 1181 } 1182 return 0; 1183 } else { 1184 GError *err = NULL; 1185 if (!g_file_get_contents(file, &buf, &size, &err)) { 1186 error_setg(errp, "can't load %s: %s", file, err->message); 1187 g_error_free(err); 1188 return -1; 1189 } 1190 } 1191 /* For legacy, keep user files in a specific global order. */ 1192 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); 1193 fw_cfg_add_file(fw_cfg, name, buf, size); 1194 fw_cfg_reset_order_override(fw_cfg); 1195 return 0; 1196 } 1197 1198 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) 1199 { 1200 return qdev_device_help(opts); 1201 } 1202 1203 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) 1204 { 1205 DeviceState *dev; 1206 1207 dev = qdev_device_add(opts, errp); 1208 if (!dev && *errp) { 1209 error_report_err(*errp); 1210 return -1; 1211 } else if (dev) { 1212 object_unref(OBJECT(dev)); 1213 } 1214 return 0; 1215 } 1216 1217 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1218 { 1219 Error *local_err = NULL; 1220 1221 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { 1222 if (local_err) { 1223 error_propagate(errp, local_err); 1224 return -1; 1225 } 1226 exit(0); 1227 } 1228 return 0; 1229 } 1230 1231 #ifdef CONFIG_VIRTFS 1232 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1233 { 1234 return qemu_fsdev_add(opts, errp); 1235 } 1236 #endif 1237 1238 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) 1239 { 1240 return monitor_init_opts(opts, errp); 1241 } 1242 1243 static void monitor_parse(const char *str, const char *mode, bool pretty) 1244 { 1245 static int monitor_device_index = 0; 1246 QemuOpts *opts; 1247 const char *p; 1248 char label[32]; 1249 1250 if (strstart(str, "chardev:", &p)) { 1251 snprintf(label, sizeof(label), "%s", p); 1252 } else { 1253 snprintf(label, sizeof(label), "compat_monitor%d", 1254 monitor_device_index); 1255 opts = qemu_chr_parse_compat(label, str, true); 1256 if (!opts) { 1257 error_report("parse error: %s", str); 1258 exit(1); 1259 } 1260 } 1261 1262 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); 1263 qemu_opt_set(opts, "mode", mode, &error_abort); 1264 qemu_opt_set(opts, "chardev", label, &error_abort); 1265 if (!strcmp(mode, "control")) { 1266 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); 1267 } else { 1268 assert(pretty == false); 1269 } 1270 monitor_device_index++; 1271 } 1272 1273 struct device_config { 1274 enum { 1275 DEV_USB, /* -usbdevice */ 1276 DEV_SERIAL, /* -serial */ 1277 DEV_PARALLEL, /* -parallel */ 1278 DEV_DEBUGCON, /* -debugcon */ 1279 DEV_GDB, /* -gdb, -s */ 1280 DEV_SCLP, /* s390 sclp */ 1281 } type; 1282 const char *cmdline; 1283 Location loc; 1284 QTAILQ_ENTRY(device_config) next; 1285 }; 1286 1287 static QTAILQ_HEAD(, device_config) device_configs = 1288 QTAILQ_HEAD_INITIALIZER(device_configs); 1289 1290 static void add_device_config(int type, const char *cmdline) 1291 { 1292 struct device_config *conf; 1293 1294 conf = g_malloc0(sizeof(*conf)); 1295 conf->type = type; 1296 conf->cmdline = cmdline; 1297 loc_save(&conf->loc); 1298 QTAILQ_INSERT_TAIL(&device_configs, conf, next); 1299 } 1300 1301 /** 1302 * foreach_device_config_or_exit(): process per-device configs 1303 * @type: device_config type 1304 * @func: device specific config function, returning pass/fail 1305 * 1306 * @func is called with the &error_fatal handler so device specific 1307 * error messages can be reported on failure. 1308 */ 1309 static void foreach_device_config_or_exit(int type, 1310 bool (*func)(const char *cmdline, 1311 Error **errp)) 1312 { 1313 struct device_config *conf; 1314 1315 QTAILQ_FOREACH(conf, &device_configs, next) { 1316 if (conf->type != type) 1317 continue; 1318 loc_push_restore(&conf->loc); 1319 func(conf->cmdline, &error_fatal); 1320 loc_pop(&conf->loc); 1321 } 1322 } 1323 1324 static void qemu_disable_default_devices(void) 1325 { 1326 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1327 1328 default_driver_check_json(); 1329 qemu_opts_foreach(qemu_find_opts("device"), 1330 default_driver_check, NULL, NULL); 1331 qemu_opts_foreach(qemu_find_opts("global"), 1332 default_driver_check, NULL, NULL); 1333 1334 if (!vga_model && !default_vga) { 1335 vga_interface_type = VGA_DEVICE; 1336 vga_interface_created = true; 1337 } 1338 if (!has_defaults || machine_class->no_serial) { 1339 default_serial = 0; 1340 } 1341 if (!has_defaults || machine_class->no_parallel) { 1342 default_parallel = 0; 1343 } 1344 if (!has_defaults || machine_class->no_floppy) { 1345 default_floppy = 0; 1346 } 1347 if (!has_defaults || machine_class->no_cdrom) { 1348 default_cdrom = 0; 1349 } 1350 if (!has_defaults || !machine_class->auto_create_sdcard) { 1351 auto_create_sdcard = false; 1352 } 1353 if (!has_defaults) { 1354 default_audio = 0; 1355 default_monitor = 0; 1356 default_net = 0; 1357 default_vga = 0; 1358 } else { 1359 if (default_net && machine_class->default_nic && 1360 !module_object_class_by_name(machine_class->default_nic)) { 1361 warn_report("Default NIC '%s' is not available in this binary", 1362 machine_class->default_nic); 1363 default_net = 0; 1364 } 1365 } 1366 } 1367 1368 static void qemu_setup_display(void) 1369 { 1370 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { 1371 if (!qemu_display_find_default(&dpy)) { 1372 dpy.type = DISPLAY_TYPE_NONE; 1373 #if defined(CONFIG_VNC) 1374 vnc_parse("localhost:0,to=99,id=default"); 1375 display_remote++; 1376 #endif 1377 } 1378 } 1379 if (dpy.type == DISPLAY_TYPE_DEFAULT) { 1380 dpy.type = DISPLAY_TYPE_NONE; 1381 } 1382 1383 qemu_display_early_init(&dpy); 1384 } 1385 1386 static void qemu_create_default_devices(void) 1387 { 1388 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1389 const char *vc = qemu_display_get_vc(&dpy); 1390 1391 if (is_daemonized()) { 1392 /* According to documentation and historically, -nographic redirects 1393 * serial port, parallel port and monitor to stdio, which does not work 1394 * with -daemonize. We can redirect these to null instead, but since 1395 * -nographic is legacy, let's just error out. 1396 * We disallow -nographic only if all other ports are not redirected 1397 * explicitly, to not break existing legacy setups which uses 1398 * -nographic _and_ redirects all ports explicitly - this is valid 1399 * usage, -nographic is just a no-op in this case. 1400 */ 1401 if (nographic 1402 && (default_parallel || default_serial || default_monitor)) { 1403 error_report("-nographic cannot be used with -daemonize"); 1404 exit(1); 1405 } 1406 } 1407 1408 if (nographic) { 1409 if (default_parallel) { 1410 add_device_config(DEV_PARALLEL, "null"); 1411 } 1412 if (default_serial && default_monitor) { 1413 add_device_config(DEV_SERIAL, "mon:stdio"); 1414 } else { 1415 if (default_serial) { 1416 add_device_config(DEV_SERIAL, "stdio"); 1417 } 1418 if (default_monitor) { 1419 monitor_parse("stdio", "readline", false); 1420 } 1421 } 1422 } else { 1423 if (default_serial) { 1424 add_device_config(DEV_SERIAL, vc ?: "null"); 1425 } 1426 if (default_parallel) { 1427 add_device_config(DEV_PARALLEL, vc ?: "null"); 1428 } 1429 if (default_monitor && vc) { 1430 monitor_parse(vc, "readline", false); 1431 } 1432 } 1433 1434 if (default_net) { 1435 QemuOptsList *net = qemu_find_opts("net"); 1436 qemu_opts_parse(net, "nic", true, &error_abort); 1437 #ifdef CONFIG_SLIRP 1438 qemu_opts_parse(net, "user", true, &error_abort); 1439 #endif 1440 } 1441 1442 /* If no default VGA is requested, the default is "none". */ 1443 if (default_vga) { 1444 vga_model = get_default_vga_model(machine_class); 1445 } 1446 if (vga_model) { 1447 select_vgahw(machine_class, vga_model); 1448 } 1449 } 1450 1451 static bool serial_parse(const char *devname, Error **errp) 1452 { 1453 int index = num_serial_hds; 1454 1455 serial_hds = g_renew(Chardev *, serial_hds, index + 1); 1456 1457 if (strcmp(devname, "none") == 0) { 1458 /* Don't allocate a serial device for this index */ 1459 serial_hds[index] = NULL; 1460 } else { 1461 char label[32]; 1462 snprintf(label, sizeof(label), "serial%d", index); 1463 1464 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1465 if (!serial_hds[index]) { 1466 error_setg(errp, "could not connect serial device" 1467 " to character backend '%s'", devname); 1468 return false; 1469 } 1470 } 1471 num_serial_hds++; 1472 return true; 1473 } 1474 1475 Chardev *serial_hd(int i) 1476 { 1477 assert(i >= 0); 1478 if (i < num_serial_hds) { 1479 return serial_hds[i]; 1480 } 1481 return NULL; 1482 } 1483 1484 static bool parallel_parse(const char *devname, Error **errp) 1485 { 1486 static int index = 0; 1487 char label[32]; 1488 1489 if (strcmp(devname, "none") == 0) 1490 return true; 1491 if (index == MAX_PARALLEL_PORTS) { 1492 error_setg(errp, "too many parallel ports"); 1493 return false; 1494 } 1495 snprintf(label, sizeof(label), "parallel%d", index); 1496 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1497 if (!parallel_hds[index]) { 1498 error_setg(errp, "could not connect parallel device" 1499 " to character backend '%s'", devname); 1500 return false; 1501 } 1502 index++; 1503 return true; 1504 } 1505 1506 static bool debugcon_parse(const char *devname, Error **errp) 1507 { 1508 QemuOpts *opts; 1509 1510 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { 1511 error_setg(errp, "invalid character backend '%s'", devname); 1512 return false; 1513 } 1514 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); 1515 if (!opts) { 1516 error_setg(errp, "already have a debugcon device"); 1517 return false; 1518 } 1519 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); 1520 qemu_opt_set(opts, "chardev", "debugcon", &error_abort); 1521 return true; 1522 } 1523 1524 static gint machine_class_cmp(gconstpointer a, gconstpointer b) 1525 { 1526 const MachineClass *mc1 = a, *mc2 = b; 1527 int res; 1528 1529 if (mc1->family == NULL) { 1530 if (mc2->family == NULL) { 1531 /* Compare standalone machine types against each other; they sort 1532 * in increasing order. 1533 */ 1534 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), 1535 object_class_get_name(OBJECT_CLASS(mc2))); 1536 } 1537 1538 /* Standalone machine types sort after families. */ 1539 return 1; 1540 } 1541 1542 if (mc2->family == NULL) { 1543 /* Families sort before standalone machine types. */ 1544 return -1; 1545 } 1546 1547 /* Families sort between each other alphabetically increasingly. */ 1548 res = strcmp(mc1->family, mc2->family); 1549 if (res != 0) { 1550 return res; 1551 } 1552 1553 /* Within the same family, machine types sort in decreasing order. */ 1554 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), 1555 object_class_get_name(OBJECT_CLASS(mc1))); 1556 } 1557 1558 static void machine_help_func(const QDict *qdict) 1559 { 1560 g_autoptr(GSList) machines = NULL; 1561 GSList *el; 1562 const char *type = qdict_get_try_str(qdict, "type"); 1563 1564 machines = object_class_get_list(TYPE_MACHINE, false); 1565 if (type) { 1566 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); 1567 if (machine_class) { 1568 type_print_class_properties(object_class_get_name(machine_class)); 1569 return; 1570 } 1571 } 1572 1573 printf("Supported machines are:\n"); 1574 machines = g_slist_sort(machines, machine_class_cmp); 1575 for (el = machines; el; el = el->next) { 1576 MachineClass *mc = el->data; 1577 if (mc->alias) { 1578 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); 1579 } 1580 printf("%-20s %s%s%s\n", mc->name, mc->desc, 1581 mc->is_default ? " (default)" : "", 1582 mc->deprecation_reason ? " (deprecated)" : ""); 1583 } 1584 } 1585 1586 static void 1587 machine_merge_property(const char *propname, QDict *prop, Error **errp) 1588 { 1589 QDict *opts; 1590 1591 opts = qdict_new(); 1592 /* Preserve the caller's reference to prop. */ 1593 qobject_ref(prop); 1594 qdict_put(opts, propname, prop); 1595 keyval_merge(machine_opts_dict, opts, errp); 1596 qobject_unref(opts); 1597 } 1598 1599 static void 1600 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, 1601 const char *arg) 1602 { 1603 QDict *prop = NULL; 1604 bool help = false; 1605 1606 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); 1607 if (help) { 1608 qemu_opts_print_help(opts_list, true); 1609 exit(0); 1610 } 1611 machine_merge_property(propname, prop, &error_fatal); 1612 qobject_unref(prop); 1613 } 1614 1615 static const char *pid_file; 1616 struct UnlinkPidfileNotifier { 1617 Notifier notifier; 1618 char *pid_file_realpath; 1619 }; 1620 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; 1621 1622 static void qemu_unlink_pidfile(Notifier *n, void *data) 1623 { 1624 struct UnlinkPidfileNotifier *upn; 1625 1626 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); 1627 unlink(upn->pid_file_realpath); 1628 } 1629 1630 static const QEMUOption *lookup_opt(int argc, char **argv, 1631 const char **poptarg, int *poptind) 1632 { 1633 const QEMUOption *popt; 1634 int optind = *poptind; 1635 char *r = argv[optind]; 1636 const char *optarg; 1637 1638 loc_set_cmdline(argv, optind, 1); 1639 optind++; 1640 /* Treat --foo the same as -foo. */ 1641 if (r[1] == '-') 1642 r++; 1643 popt = qemu_options; 1644 for(;;) { 1645 if (!popt->name) { 1646 error_report("invalid option"); 1647 exit(1); 1648 } 1649 if (!strcmp(popt->name, r + 1)) 1650 break; 1651 popt++; 1652 } 1653 if (popt->flags & HAS_ARG) { 1654 if (optind >= argc) { 1655 error_report("requires an argument"); 1656 exit(1); 1657 } 1658 optarg = argv[optind++]; 1659 loc_set_cmdline(argv, optind - 2, 2); 1660 } else { 1661 optarg = NULL; 1662 } 1663 1664 *poptarg = optarg; 1665 *poptind = optind; 1666 1667 return popt; 1668 } 1669 1670 static MachineClass *select_machine(QDict *qdict, Error **errp) 1671 { 1672 ERRP_GUARD(); 1673 const char *machine_type = qdict_get_try_str(qdict, "type"); 1674 g_autoptr(GSList) machines = object_class_get_list(TYPE_MACHINE, false); 1675 MachineClass *machine_class = NULL; 1676 1677 if (machine_type) { 1678 machine_class = find_machine(machine_type, machines); 1679 if (!machine_class) { 1680 error_setg(errp, "unsupported machine type: \"%s\"", machine_type); 1681 } 1682 qdict_del(qdict, "type"); 1683 } else { 1684 machine_class = find_default_machine(machines); 1685 if (!machine_class) { 1686 error_setg(errp, "No machine specified, and there is no default"); 1687 } 1688 } 1689 1690 if (!machine_class) { 1691 error_append_hint(errp, 1692 "Use -machine help to list supported machines\n"); 1693 } 1694 return machine_class; 1695 } 1696 1697 static int object_parse_property_opt(Object *obj, 1698 const char *name, const char *value, 1699 const char *skip, Error **errp) 1700 { 1701 if (g_str_equal(name, skip)) { 1702 return 0; 1703 } 1704 1705 if (!object_property_parse(obj, name, value, errp)) { 1706 return -1; 1707 } 1708 1709 return 0; 1710 } 1711 1712 /* *Non*recursively replace underscores with dashes in QDict keys. */ 1713 static void keyval_dashify(QDict *qdict, Error **errp) 1714 { 1715 const QDictEntry *ent, *next; 1716 char *p; 1717 1718 for (ent = qdict_first(qdict); ent; ent = next) { 1719 g_autofree char *new_key = NULL; 1720 1721 next = qdict_next(qdict, ent); 1722 if (!strchr(ent->key, '_')) { 1723 continue; 1724 } 1725 new_key = g_strdup(ent->key); 1726 for (p = new_key; *p; p++) { 1727 if (*p == '_') { 1728 *p = '-'; 1729 } 1730 } 1731 if (qdict_haskey(qdict, new_key)) { 1732 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); 1733 return; 1734 } 1735 qobject_ref(ent->value); 1736 qdict_put_obj(qdict, new_key, ent->value); 1737 qdict_del(qdict, ent->key); 1738 } 1739 } 1740 1741 static void qemu_apply_legacy_machine_options(QDict *qdict) 1742 { 1743 const char *value; 1744 QObject *prop; 1745 1746 keyval_dashify(qdict, &error_fatal); 1747 1748 /* Legacy options do not correspond to MachineState properties. */ 1749 value = qdict_get_try_str(qdict, "accel"); 1750 if (value) { 1751 accelerators = g_strdup(value); 1752 qdict_del(qdict, "accel"); 1753 } 1754 1755 value = qdict_get_try_str(qdict, "igd-passthru"); 1756 if (value) { 1757 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, 1758 false); 1759 qdict_del(qdict, "igd-passthru"); 1760 } 1761 1762 value = qdict_get_try_str(qdict, "kvm-shadow-mem"); 1763 if (value) { 1764 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, 1765 false); 1766 qdict_del(qdict, "kvm-shadow-mem"); 1767 } 1768 1769 value = qdict_get_try_str(qdict, "kernel-irqchip"); 1770 if (value) { 1771 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, 1772 false); 1773 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, 1774 false); 1775 qdict_del(qdict, "kernel-irqchip"); 1776 } 1777 1778 value = qdict_get_try_str(qdict, "memory-backend"); 1779 if (value) { 1780 if (mem_path) { 1781 error_report("'-mem-path' can't be used together with" 1782 "'-machine memory-backend'"); 1783 exit(EXIT_FAILURE); 1784 } 1785 1786 /* Resolved later. */ 1787 ram_memdev_id = g_strdup(value); 1788 qdict_del(qdict, "memory-backend"); 1789 } 1790 1791 prop = qdict_get(qdict, "memory"); 1792 if (prop) { 1793 have_custom_ram_size = 1794 qobject_type(prop) == QTYPE_QDICT && 1795 qdict_haskey(qobject_to(QDict, prop), "size"); 1796 } 1797 } 1798 1799 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) 1800 { 1801 ObjectOption *opt, *next; 1802 1803 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { 1804 const char *type = ObjectType_str(opt->opts->qom_type); 1805 if (type_opt_predicate(type)) { 1806 user_creatable_add_qapi(opt->opts, &error_fatal); 1807 qapi_free_ObjectOptions(opt->opts); 1808 QTAILQ_REMOVE(&object_opts, opt, next); 1809 g_free(opt); 1810 } 1811 } 1812 } 1813 1814 static void object_option_add_visitor(Visitor *v) 1815 { 1816 ObjectOption *opt = g_new0(ObjectOption, 1); 1817 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); 1818 QTAILQ_INSERT_TAIL(&object_opts, opt, next); 1819 } 1820 1821 static void incoming_option_parse(const char *str) 1822 { 1823 MigrationChannelType type = MIGRATION_CHANNEL_TYPE_MAIN; 1824 MigrationChannel *channel; 1825 Visitor *v; 1826 1827 if (!strcmp(str, "defer")) { 1828 channel = NULL; 1829 } else if (migrate_is_uri(str)) { 1830 migrate_uri_parse(str, &channel, &error_fatal); 1831 } else { 1832 v = qobject_input_visitor_new_str(str, "channel-type", &error_fatal); 1833 visit_type_MigrationChannel(v, NULL, &channel, &error_fatal); 1834 visit_free(v); 1835 type = channel->channel_type; 1836 } 1837 1838 /* New incoming spec replaces the previous */ 1839 qapi_free_MigrationChannel(incoming_channels[type]); 1840 incoming_channels[type] = channel; 1841 incoming_str[type] = str; 1842 incoming = incoming_str[MIGRATION_CHANNEL_TYPE_MAIN]; 1843 } 1844 1845 static void object_option_parse(const char *str) 1846 { 1847 QemuOpts *opts; 1848 const char *type; 1849 Visitor *v; 1850 1851 if (str[0] == '{') { 1852 QObject *obj = qobject_from_json(str, &error_fatal); 1853 1854 v = qobject_input_visitor_new(obj); 1855 qobject_unref(obj); 1856 } else { 1857 opts = qemu_opts_parse_noisily(qemu_find_opts("object"), 1858 str, true); 1859 if (!opts) { 1860 exit(1); 1861 } 1862 1863 type = qemu_opt_get(opts, "qom-type"); 1864 if (!type) { 1865 error_report(QERR_MISSING_PARAMETER, "qom-type"); 1866 exit(1); 1867 } 1868 if (user_creatable_print_help(type, opts)) { 1869 exit(0); 1870 } 1871 1872 v = opts_visitor_new(opts); 1873 } 1874 1875 object_option_add_visitor(v); 1876 visit_free(v); 1877 } 1878 1879 /* 1880 * Very early object creation, before the sandbox options have been activated. 1881 */ 1882 static bool object_create_pre_sandbox(const char *type) 1883 { 1884 /* 1885 * Objects should in general not get initialized "too early" without 1886 * a reason. If you add one, state the reason in a comment! 1887 */ 1888 1889 /* 1890 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU 1891 * affinity of threads. 1892 */ 1893 if (g_str_equal(type, "thread-context")) { 1894 return true; 1895 } 1896 1897 return false; 1898 } 1899 1900 /* 1901 * Initial object creation happens before all other 1902 * QEMU data types are created. The majority of objects 1903 * can be created at this point. The rng-egd object 1904 * cannot be created here, as it depends on the chardev 1905 * already existing. 1906 */ 1907 static bool object_create_early(const char *type) 1908 { 1909 /* 1910 * Objects should not be made "delayed" without a reason. If you 1911 * add one, state the reason in a comment! 1912 */ 1913 1914 /* Reason: already created. */ 1915 if (object_create_pre_sandbox(type)) { 1916 return false; 1917 } 1918 1919 /* Reason: property "chardev" */ 1920 if (g_str_equal(type, "rng-egd") || 1921 g_str_equal(type, "qtest")) { 1922 return false; 1923 } 1924 1925 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) 1926 /* Reason: cryptodev-vhost-user property "chardev" */ 1927 if (g_str_equal(type, "cryptodev-vhost-user")) { 1928 return false; 1929 } 1930 #endif 1931 1932 /* Reason: vhost-user-blk-server property "node-name" */ 1933 if (g_str_equal(type, "vhost-user-blk-server")) { 1934 return false; 1935 } 1936 /* 1937 * Reason: filter-* property "netdev" etc. 1938 */ 1939 if (g_str_equal(type, "filter-buffer") || 1940 g_str_equal(type, "filter-dump") || 1941 g_str_equal(type, "filter-mirror") || 1942 g_str_equal(type, "filter-redirector") || 1943 g_str_equal(type, "colo-compare") || 1944 g_str_equal(type, "filter-rewriter") || 1945 g_str_equal(type, "filter-replay")) { 1946 return false; 1947 } 1948 1949 /* 1950 * Allocation of large amounts of memory may delay 1951 * chardev initialization for too long, and trigger timeouts 1952 * on software that waits for a monitor socket to be created 1953 */ 1954 if (g_str_has_prefix(type, "memory-backend-")) { 1955 return false; 1956 } 1957 1958 return true; 1959 } 1960 1961 static void qemu_apply_machine_options(QDict *qdict) 1962 { 1963 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); 1964 1965 if (semihosting_enabled(false) && !semihosting_get_argc()) { 1966 /* fall back to the -kernel/-append */ 1967 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); 1968 } 1969 1970 if (current_machine->smp.cpus > 1) { 1971 replay_add_blocker("multiple CPUs"); 1972 } 1973 } 1974 1975 static void qemu_create_early_backends(void) 1976 { 1977 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1978 #if defined(CONFIG_SDL) 1979 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); 1980 #else 1981 const bool use_sdl = false; 1982 #endif 1983 #if defined(CONFIG_GTK) 1984 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); 1985 #else 1986 const bool use_gtk = false; 1987 #endif 1988 1989 if (dpy.has_window_close && !use_gtk && !use_sdl) { 1990 error_report("window-close is only valid for GTK and SDL, " 1991 "ignoring option"); 1992 } 1993 1994 qemu_console_early_init(); 1995 1996 if (dpy.has_gl && dpy.gl != DISPLAY_GL_MODE_OFF && display_opengl == 0) { 1997 #if defined(CONFIG_OPENGL) 1998 error_report("OpenGL is not supported by display backend '%s'", 1999 DisplayType_str(dpy.type)); 2000 #else 2001 error_report("OpenGL support was not enabled in this build of QEMU"); 2002 #endif 2003 exit(1); 2004 } 2005 2006 object_option_foreach_add(object_create_early); 2007 2008 /* spice needs the timers to be initialized by this point */ 2009 /* spice must initialize before audio as it changes the default audiodev */ 2010 /* spice must initialize before chardevs (for spicevmc and spiceport) */ 2011 qemu_spice.init(); 2012 2013 qemu_opts_foreach(qemu_find_opts("chardev"), 2014 chardev_init_func, NULL, &error_fatal); 2015 2016 #ifdef CONFIG_VIRTFS 2017 qemu_opts_foreach(qemu_find_opts("fsdev"), 2018 fsdev_init_func, NULL, &error_fatal); 2019 #endif 2020 2021 /* 2022 * Note: we need to create audio and block backends before 2023 * setting machine properties, so they can be referred to. 2024 */ 2025 configure_blockdev(&bdo_queue, machine_class, snapshot); 2026 audio_init_audiodevs(); 2027 if (default_audio) { 2028 audio_create_default_audiodevs(); 2029 } 2030 } 2031 2032 2033 /* 2034 * The remainder of object creation happens after the 2035 * creation of chardev, fsdev, net clients and device data types. 2036 */ 2037 static bool object_create_late(const char *type) 2038 { 2039 return !object_create_early(type) && !object_create_pre_sandbox(type); 2040 } 2041 2042 static void qemu_create_late_backends(void) 2043 { 2044 if (qtest_chrdev) { 2045 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); 2046 } 2047 2048 net_init_clients(); 2049 2050 object_option_foreach_add(object_create_late); 2051 2052 /* 2053 * Wait for any outstanding memory prealloc from created memory 2054 * backends to complete. 2055 */ 2056 if (!qemu_finish_async_prealloc_mem(&error_fatal)) { 2057 exit(1); 2058 } 2059 2060 if (tpm_init() < 0) { 2061 exit(1); 2062 } 2063 2064 qemu_opts_foreach(qemu_find_opts("mon"), 2065 mon_init_func, NULL, &error_fatal); 2066 2067 foreach_device_config_or_exit(DEV_SERIAL, serial_parse); 2068 foreach_device_config_or_exit(DEV_PARALLEL, parallel_parse); 2069 foreach_device_config_or_exit(DEV_DEBUGCON, debugcon_parse); 2070 2071 /* now chardevs have been created we may have semihosting to connect */ 2072 qemu_semihosting_chardev_init(); 2073 } 2074 2075 static void qemu_resolve_machine_memdev(void) 2076 { 2077 if (ram_memdev_id) { 2078 Object *backend; 2079 ram_addr_t backend_size; 2080 2081 backend = object_resolve_path_type(ram_memdev_id, 2082 TYPE_MEMORY_BACKEND, NULL); 2083 if (!backend) { 2084 error_report("Memory backend '%s' not found", ram_memdev_id); 2085 exit(EXIT_FAILURE); 2086 } 2087 if (!have_custom_ram_size) { 2088 backend_size = object_property_get_uint(backend, "size", &error_abort); 2089 current_machine->ram_size = backend_size; 2090 } 2091 object_property_set_link(OBJECT(current_machine), 2092 "memory-backend", backend, &error_fatal); 2093 } 2094 } 2095 2096 static void parse_memory_options(void) 2097 { 2098 QemuOpts *opts = qemu_find_opts_singleton("memory"); 2099 QDict *dict, *prop; 2100 const char *mem_str; 2101 Location loc; 2102 2103 loc_push_none(&loc); 2104 qemu_opts_loc_restore(opts); 2105 2106 prop = qdict_new(); 2107 2108 if (qemu_opt_get_size(opts, "size", 0) != 0) { 2109 /* Fix up legacy suffix-less format */ 2110 mem_str = qemu_opt_get(opts, "size"); 2111 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { 2112 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); 2113 qdict_put_str(prop, "size", mib_str); 2114 } else { 2115 qdict_put_str(prop, "size", mem_str); 2116 } 2117 } 2118 2119 if (qemu_opt_get(opts, "maxmem")) { 2120 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); 2121 } 2122 if (qemu_opt_get(opts, "slots")) { 2123 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); 2124 } 2125 2126 dict = qdict_new(); 2127 qdict_put(dict, "memory", prop); 2128 keyval_merge(machine_opts_dict, dict, &error_fatal); 2129 qobject_unref(dict); 2130 loc_pop(&loc); 2131 } 2132 2133 static void qemu_create_machine_containers(Object *machine) 2134 { 2135 static const char *const containers[] = { 2136 "unattached", 2137 "peripheral", 2138 "peripheral-anon", 2139 }; 2140 2141 for (unsigned i = 0; i < ARRAY_SIZE(containers); i++) { 2142 object_property_add_new_container(machine, containers[i]); 2143 } 2144 } 2145 2146 static void qemu_create_machine(QDict *qdict) 2147 { 2148 MachineClass *machine_class = select_machine(qdict, &error_fatal); 2149 object_set_machine_compat_props(machine_class->compat_props); 2150 2151 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); 2152 object_property_add_child(object_get_root(), "machine", 2153 OBJECT(current_machine)); 2154 qemu_create_machine_containers(OBJECT(current_machine)); 2155 object_property_add_child(machine_get_container("unattached"), 2156 "sysbus", OBJECT(sysbus_get_default())); 2157 2158 if (machine_class->minimum_page_bits) { 2159 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { 2160 /* This would be a board error: specifying a minimum smaller than 2161 * a target's compile-time fixed setting. 2162 */ 2163 g_assert_not_reached(); 2164 } 2165 } 2166 2167 cpu_exec_init_all(); 2168 2169 if (machine_class->hw_version) { 2170 qemu_set_hw_version(machine_class->hw_version); 2171 } 2172 2173 /* 2174 * Get the default machine options from the machine if it is not already 2175 * specified either by the configuration file or by the command line. 2176 */ 2177 if (machine_class->default_machine_opts) { 2178 QDict *default_opts = 2179 keyval_parse(machine_class->default_machine_opts, NULL, NULL, 2180 &error_abort); 2181 qemu_apply_legacy_machine_options(default_opts); 2182 object_set_properties_from_keyval(OBJECT(current_machine), default_opts, 2183 false, &error_abort); 2184 qobject_unref(default_opts); 2185 } 2186 } 2187 2188 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) 2189 { 2190 GlobalProperty *g; 2191 2192 g = g_malloc0(sizeof(*g)); 2193 g->driver = qemu_opt_get(opts, "driver"); 2194 g->property = qemu_opt_get(opts, "property"); 2195 g->value = qemu_opt_get(opts, "value"); 2196 qdev_prop_register_global(g); 2197 return 0; 2198 } 2199 2200 /* 2201 * Return whether configuration group @group is stored in QemuOpts, or 2202 * recorded as one or more QDicts by qemu_record_config_group. 2203 */ 2204 static bool is_qemuopts_group(const char *group) 2205 { 2206 if (g_str_equal(group, "object") || 2207 g_str_equal(group, "audiodev") || 2208 g_str_equal(group, "machine") || 2209 g_str_equal(group, "smp-opts") || 2210 g_str_equal(group, "boot-opts")) { 2211 return false; 2212 } 2213 return true; 2214 } 2215 2216 static void qemu_record_config_group(const char *group, QDict *dict, 2217 bool from_json, Error **errp) 2218 { 2219 if (g_str_equal(group, "object")) { 2220 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2221 object_option_add_visitor(v); 2222 visit_free(v); 2223 2224 } else if (g_str_equal(group, "audiodev")) { 2225 Audiodev *dev = NULL; 2226 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2227 if (visit_type_Audiodev(v, NULL, &dev, errp)) { 2228 audio_define(dev); 2229 } 2230 visit_free(v); 2231 2232 } else if (g_str_equal(group, "machine")) { 2233 /* 2234 * Cannot merge string-valued and type-safe dictionaries, so JSON 2235 * is not accepted yet for -M. 2236 */ 2237 assert(!from_json); 2238 keyval_merge(machine_opts_dict, dict, errp); 2239 } else if (g_str_equal(group, "smp-opts")) { 2240 machine_merge_property("smp", dict, &error_fatal); 2241 } else if (g_str_equal(group, "boot-opts")) { 2242 machine_merge_property("boot", dict, &error_fatal); 2243 } else { 2244 abort(); 2245 } 2246 } 2247 2248 /* 2249 * Parse non-QemuOpts config file groups, pass the rest to 2250 * qemu_config_do_parse. 2251 */ 2252 static void qemu_parse_config_group(const char *group, QDict *qdict, 2253 void *opaque, Error **errp) 2254 { 2255 QObject *crumpled; 2256 if (is_qemuopts_group(group)) { 2257 qemu_config_do_parse(group, qdict, opaque, errp); 2258 return; 2259 } 2260 2261 crumpled = qdict_crumple(qdict, errp); 2262 if (!crumpled) { 2263 return; 2264 } 2265 switch (qobject_type(crumpled)) { 2266 case QTYPE_QDICT: 2267 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); 2268 break; 2269 case QTYPE_QLIST: 2270 error_setg(errp, "Lists cannot be at top level of a configuration section"); 2271 break; 2272 default: 2273 g_assert_not_reached(); 2274 } 2275 qobject_unref(crumpled); 2276 } 2277 2278 static void qemu_read_default_config_file(Error **errp) 2279 { 2280 ERRP_GUARD(); 2281 int ret; 2282 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); 2283 2284 ret = qemu_read_config_file(file, qemu_parse_config_group, errp); 2285 if (ret < 0) { 2286 if (ret == -ENOENT) { 2287 error_free(*errp); 2288 *errp = NULL; 2289 } 2290 } 2291 } 2292 2293 static void qemu_set_option(const char *str, Error **errp) 2294 { 2295 char group[64], id[64], arg[64]; 2296 QemuOptsList *list; 2297 QemuOpts *opts; 2298 int rc, offset; 2299 2300 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); 2301 if (rc < 3 || str[offset] != '=') { 2302 error_setg(errp, "can't parse: \"%s\"", str); 2303 return; 2304 } 2305 2306 if (!is_qemuopts_group(group)) { 2307 error_setg(errp, "-set is not supported with %s", group); 2308 } else { 2309 list = qemu_find_opts_err(group, errp); 2310 if (list) { 2311 opts = qemu_opts_find(list, id); 2312 if (!opts) { 2313 error_setg(errp, "there is no %s \"%s\" defined", group, id); 2314 return; 2315 } 2316 qemu_opt_set(opts, arg, str + offset + 1, errp); 2317 } 2318 } 2319 } 2320 2321 static void user_register_global_props(void) 2322 { 2323 qemu_opts_foreach(qemu_find_opts("global"), 2324 global_init_func, NULL, NULL); 2325 } 2326 2327 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) 2328 { 2329 return !icount_configure(opts, errp); 2330 } 2331 2332 static int accelerator_set_property(void *opaque, 2333 const char *name, const char *value, 2334 Error **errp) 2335 { 2336 return object_parse_property_opt(opaque, name, value, "accel", errp); 2337 } 2338 2339 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) 2340 { 2341 bool *p_init_failed = opaque; 2342 const char *acc = qemu_opt_get(opts, "accel"); 2343 AccelClass *ac = accel_find(acc); 2344 AccelState *accel; 2345 int ret; 2346 bool qtest_with_kvm; 2347 2348 if (!acc) { 2349 error_setg(errp, QERR_MISSING_PARAMETER, "accel"); 2350 goto bad; 2351 } 2352 2353 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; 2354 2355 if (!ac) { 2356 if (!qtest_with_kvm) { 2357 error_report("invalid accelerator %s", acc); 2358 } 2359 goto bad; 2360 } 2361 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); 2362 object_apply_compat_props(OBJECT(accel)); 2363 qemu_opt_foreach(opts, accelerator_set_property, 2364 accel, 2365 &error_fatal); 2366 2367 ret = accel_init_machine(accel, current_machine); 2368 if (ret < 0) { 2369 if (!qtest_with_kvm || ret != -ENOENT) { 2370 error_report("failed to initialize %s: %s", acc, strerror(-ret)); 2371 } 2372 goto bad; 2373 } 2374 2375 return 1; 2376 2377 bad: 2378 *p_init_failed = true; 2379 return 0; 2380 } 2381 2382 static void configure_accelerators(const char *progname) 2383 { 2384 bool init_failed = false; 2385 2386 qemu_opts_foreach(qemu_find_opts("icount"), 2387 do_configure_icount, NULL, &error_fatal); 2388 2389 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { 2390 char **accel_list, **tmp; 2391 2392 if (accelerators == NULL) { 2393 /* Select the default accelerator */ 2394 bool have_tcg = accel_find("tcg"); 2395 bool have_kvm = accel_find("kvm"); 2396 bool have_hvf = accel_find("hvf"); 2397 2398 if (have_tcg && have_kvm) { 2399 if (g_str_has_suffix(progname, "kvm")) { 2400 /* If the program name ends with "kvm", we prefer KVM */ 2401 accelerators = "kvm:tcg"; 2402 } else { 2403 accelerators = "tcg:kvm"; 2404 } 2405 } else if (have_kvm) { 2406 accelerators = "kvm"; 2407 } else if (have_tcg) { 2408 accelerators = "tcg"; 2409 } else if (have_hvf) { 2410 accelerators = "hvf"; 2411 } else { 2412 error_report("No accelerator selected and" 2413 " no default accelerator available"); 2414 exit(1); 2415 } 2416 } 2417 accel_list = g_strsplit(accelerators, ":", 0); 2418 2419 for (tmp = accel_list; *tmp; tmp++) { 2420 /* 2421 * Filter invalid accelerators here, to prevent obscenities 2422 * such as "-machine accel=tcg,,thread=single". 2423 */ 2424 if (accel_find(*tmp)) { 2425 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); 2426 } else { 2427 init_failed = true; 2428 error_report("invalid accelerator %s", *tmp); 2429 } 2430 } 2431 g_strfreev(accel_list); 2432 } else { 2433 if (accelerators != NULL) { 2434 error_report("The -accel and \"-machine accel=\" options are incompatible"); 2435 exit(1); 2436 } 2437 } 2438 2439 if (!qemu_opts_foreach(qemu_find_opts("accel"), 2440 do_configure_accelerator, &init_failed, &error_fatal)) { 2441 if (!init_failed) { 2442 error_report("no accelerator found"); 2443 } 2444 exit(1); 2445 } 2446 2447 if (init_failed && !qtest_chrdev) { 2448 error_report("falling back to %s", current_accel_name()); 2449 } 2450 2451 if (icount_enabled() && !tcg_enabled()) { 2452 error_report("-icount is not allowed with hardware virtualization"); 2453 exit(1); 2454 } 2455 } 2456 2457 static void qemu_validate_options(const QDict *machine_opts) 2458 { 2459 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); 2460 const char *shim_filename = qdict_get_try_str(machine_opts, "shim"); 2461 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); 2462 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); 2463 2464 if (kernel_filename == NULL) { 2465 if (kernel_cmdline != NULL) { 2466 error_report("-append only allowed with -kernel option"); 2467 exit(1); 2468 } 2469 2470 if (shim_filename != NULL) { 2471 error_report("-shim only allowed with -kernel option"); 2472 exit(1); 2473 } 2474 2475 if (initrd_filename != NULL) { 2476 error_report("-initrd only allowed with -kernel option"); 2477 exit(1); 2478 } 2479 } 2480 2481 if (loadvm && incoming) { 2482 error_report("'incoming' and 'loadvm' options are mutually exclusive"); 2483 exit(EXIT_FAILURE); 2484 } 2485 if (loadvm && preconfig_requested) { 2486 error_report("'preconfig' and 'loadvm' options are " 2487 "mutually exclusive"); 2488 exit(EXIT_FAILURE); 2489 } 2490 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { 2491 error_report("'preconfig' supports '-incoming defer' only"); 2492 exit(EXIT_FAILURE); 2493 } 2494 2495 #ifdef CONFIG_CURSES 2496 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { 2497 error_report("curses display cannot be used with -daemonize"); 2498 exit(1); 2499 } 2500 #endif 2501 } 2502 2503 static void qemu_process_sugar_options(void) 2504 { 2505 if (mem_prealloc) { 2506 QObject *smp = qdict_get(machine_opts_dict, "smp"); 2507 if (smp && qobject_type(smp) == QTYPE_QDICT) { 2508 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); 2509 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { 2510 const char *val = qstring_get_str(qobject_to(QString, cpus)); 2511 object_register_sugar_prop("memory-backend", "prealloc-threads", 2512 val, false); 2513 } 2514 } 2515 object_register_sugar_prop("memory-backend", "prealloc", "on", false); 2516 } 2517 } 2518 2519 /* -action processing */ 2520 2521 /* 2522 * Process all the -action parameters parsed from cmdline. 2523 */ 2524 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) 2525 { 2526 Error *local_err = NULL; 2527 QDict *qdict = qemu_opts_to_qdict(opts, NULL); 2528 QObject *ret = NULL; 2529 qmp_marshal_set_action(qdict, &ret, &local_err); 2530 qobject_unref(ret); 2531 qobject_unref(qdict); 2532 if (local_err) { 2533 error_propagate(errp, local_err); 2534 return 1; 2535 } 2536 return 0; 2537 } 2538 2539 static void qemu_process_early_options(void) 2540 { 2541 qemu_opts_foreach(qemu_find_opts("name"), 2542 parse_name, NULL, &error_fatal); 2543 2544 object_option_foreach_add(object_create_pre_sandbox); 2545 2546 #ifdef CONFIG_SECCOMP 2547 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); 2548 if (olist) { 2549 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); 2550 } 2551 #endif 2552 2553 if (qemu_opts_foreach(qemu_find_opts("action"), 2554 process_runstate_actions, NULL, &error_fatal)) { 2555 exit(1); 2556 } 2557 2558 #ifndef _WIN32 2559 qemu_opts_foreach(qemu_find_opts("add-fd"), 2560 parse_add_fd, NULL, &error_fatal); 2561 2562 qemu_opts_foreach(qemu_find_opts("add-fd"), 2563 cleanup_add_fd, NULL, &error_fatal); 2564 #endif 2565 2566 /* Open the logfile at this point and set the log mask if necessary. */ 2567 { 2568 int mask = 0; 2569 if (log_mask) { 2570 mask = qemu_str_to_log_mask(log_mask); 2571 if (!mask) { 2572 qemu_print_log_usage(stdout); 2573 exit(1); 2574 } 2575 } 2576 qemu_set_log_filename_flags(log_file, mask, &error_fatal); 2577 } 2578 2579 qemu_add_default_firmwarepath(); 2580 } 2581 2582 static void qemu_process_help_options(void) 2583 { 2584 /* 2585 * Check for -cpu help and -device help before we call select_machine(), 2586 * which will return an error if the architecture has no default machine 2587 * type and the user did not specify one, so that the user doesn't need 2588 * to say '-cpu help -machine something'. 2589 */ 2590 if (cpu_option && is_help_option(cpu_option)) { 2591 list_cpus(); 2592 exit(0); 2593 } 2594 2595 if (qemu_opts_foreach(qemu_find_opts("device"), 2596 device_help_func, NULL, NULL)) { 2597 exit(0); 2598 } 2599 2600 /* -L help lists the data directories and exits. */ 2601 if (list_data_dirs) { 2602 qemu_list_data_dirs(); 2603 exit(0); 2604 } 2605 } 2606 2607 static void qemu_maybe_daemonize(const char *pid_file) 2608 { 2609 Error *err = NULL; 2610 2611 os_daemonize(); 2612 rcu_disable_atfork(); 2613 2614 if (pid_file) { 2615 char *pid_file_realpath = NULL; 2616 2617 if (!qemu_write_pidfile(pid_file, &err)) { 2618 error_reportf_err(err, "cannot create PID file: "); 2619 exit(1); 2620 } 2621 2622 pid_file_realpath = g_malloc0(PATH_MAX); 2623 if (!realpath(pid_file, pid_file_realpath)) { 2624 if (errno != ENOENT) { 2625 warn_report("not removing PID file on exit: cannot resolve PID " 2626 "file path: %s: %s", pid_file, strerror(errno)); 2627 } 2628 return; 2629 } 2630 2631 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { 2632 .notifier = { 2633 .notify = qemu_unlink_pidfile, 2634 }, 2635 .pid_file_realpath = pid_file_realpath, 2636 }; 2637 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); 2638 } 2639 } 2640 2641 static void qemu_init_displays(void) 2642 { 2643 DisplayState *ds; 2644 2645 /* init local displays */ 2646 ds = init_displaystate(); 2647 qemu_display_init(ds, &dpy); 2648 2649 /* must be after terminal init, SDL library changes signal handlers */ 2650 os_setup_signal_handling(); 2651 2652 /* init remote displays */ 2653 #ifdef CONFIG_VNC 2654 qemu_opts_foreach(qemu_find_opts("vnc"), 2655 vnc_init_func, NULL, &error_fatal); 2656 #endif 2657 2658 if (using_spice) { 2659 qemu_spice.display_init(); 2660 } 2661 } 2662 2663 static void qemu_init_board(void) 2664 { 2665 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 2666 2667 /* process plugin before CPUs are created, but once -smp has been parsed */ 2668 qemu_plugin_load_list(&plugin_list, &error_fatal); 2669 2670 /* From here on we enter MACHINE_PHASE_INITIALIZED. */ 2671 machine_run_board_init(current_machine, mem_path, &error_fatal); 2672 2673 if (machine_class->auto_create_sdcard) { 2674 bool ambigous; 2675 2676 /* Ensure there is a SD bus available to create SD card on */ 2677 Object *obj = object_resolve_path_type("", TYPE_SD_BUS, &ambigous); 2678 if (!obj && !ambigous) { 2679 fprintf(stderr, "Can not create sd-card on '%s' machine" 2680 " because it lacks a sd-bus\n", 2681 machine_class->name); 2682 abort(); 2683 } 2684 } 2685 2686 drive_check_orphaned(); 2687 2688 realtime_init(); 2689 } 2690 2691 static void qemu_create_cli_devices(void) 2692 { 2693 DeviceOption *opt; 2694 2695 soundhw_init(); 2696 2697 qemu_opts_foreach(qemu_find_opts("fw_cfg"), 2698 parse_fw_cfg, fw_cfg_find(), &error_fatal); 2699 2700 /* init USB devices */ 2701 if (machine_usb(current_machine)) { 2702 foreach_device_config_or_exit(DEV_USB, usb_parse); 2703 } 2704 2705 /* init generic devices */ 2706 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); 2707 qemu_opts_foreach(qemu_find_opts("device"), 2708 device_init_func, NULL, &error_fatal); 2709 QTAILQ_FOREACH(opt, &device_opts, next) { 2710 QObject *ret_data = NULL; 2711 2712 loc_push_restore(&opt->loc); 2713 qmp_device_add(opt->opts, &ret_data, &error_fatal); 2714 assert(ret_data == NULL); /* error_fatal aborts */ 2715 loc_pop(&opt->loc); 2716 } 2717 rom_reset_order_override(); 2718 } 2719 2720 static bool qemu_machine_creation_done(Error **errp) 2721 { 2722 MachineState *machine = MACHINE(qdev_get_machine()); 2723 2724 /* Did we create any drives that we failed to create a device for? */ 2725 drive_check_orphaned(); 2726 2727 /* Don't warn about the default network setup that you get if 2728 * no command line -net or -netdev options are specified. There 2729 * are two cases that we would otherwise complain about: 2730 * (1) board doesn't support a NIC but the implicit "-net nic" 2731 * requested one 2732 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" 2733 * sets up a nic that isn't connected to anything. 2734 */ 2735 if (!default_net && (!qtest_enabled() || has_defaults)) { 2736 net_check_clients(); 2737 } 2738 2739 qdev_prop_check_globals(); 2740 2741 qdev_machine_creation_done(); 2742 2743 if (machine->cgs && !machine->cgs->ready) { 2744 error_setg(errp, "accelerator does not support confidential guest %s", 2745 object_get_typename(OBJECT(machine->cgs))); 2746 exit(1); 2747 } 2748 2749 foreach_device_config_or_exit(DEV_GDB, gdbserver_start); 2750 2751 if (!vga_interface_created && !default_vga && 2752 vga_interface_type != VGA_NONE) { 2753 warn_report("A -vga option was passed but this machine " 2754 "type does not use that option; " 2755 "No VGA device has been created"); 2756 } 2757 return true; 2758 } 2759 2760 void qmp_x_exit_preconfig(Error **errp) 2761 { 2762 if (phase_check(PHASE_MACHINE_INITIALIZED)) { 2763 error_setg(errp, "The command is permitted only before machine initialization"); 2764 return; 2765 } 2766 2767 qemu_init_board(); 2768 qemu_create_cli_devices(); 2769 if (!qemu_machine_creation_done(errp)) { 2770 return; 2771 } 2772 2773 if (loadvm) { 2774 RunState state = autostart ? RUN_STATE_RUNNING : runstate_get(); 2775 load_snapshot(loadvm, NULL, false, NULL, &error_fatal); 2776 load_snapshot_resume(state); 2777 } 2778 if (replay_mode != REPLAY_MODE_NONE) { 2779 replay_vmstate_init(); 2780 } 2781 2782 if (incoming) { 2783 Error *local_err = NULL; 2784 if (strcmp(incoming, "defer") != 0) { 2785 g_autofree MigrationChannelList *channels = 2786 g_new0(MigrationChannelList, 1); 2787 2788 channels->value = incoming_channels[MIGRATION_CHANNEL_TYPE_MAIN]; 2789 qmp_migrate_incoming(NULL, true, channels, true, true, &local_err); 2790 if (local_err) { 2791 error_reportf_err(local_err, "-incoming %s: ", incoming); 2792 exit(1); 2793 } 2794 } 2795 } else if (autostart) { 2796 qmp_cont(NULL); 2797 } 2798 } 2799 2800 void qemu_init(int argc, char **argv) 2801 { 2802 QemuOpts *opts; 2803 QemuOpts *icount_opts = NULL, *accel_opts = NULL; 2804 QemuOptsList *olist; 2805 int optind; 2806 const char *optarg; 2807 MachineClass *machine_class; 2808 bool userconfig = true; 2809 FILE *vmstate_dump_file = NULL; 2810 2811 qemu_add_opts(&qemu_drive_opts); 2812 qemu_add_drive_opts(&qemu_legacy_drive_opts); 2813 qemu_add_drive_opts(&qemu_common_drive_opts); 2814 qemu_add_drive_opts(&qemu_drive_opts); 2815 qemu_add_drive_opts(&bdrv_runtime_opts); 2816 qemu_add_opts(&qemu_chardev_opts); 2817 qemu_add_opts(&qemu_device_opts); 2818 qemu_add_opts(&qemu_netdev_opts); 2819 qemu_add_opts(&qemu_nic_opts); 2820 qemu_add_opts(&qemu_net_opts); 2821 qemu_add_opts(&qemu_rtc_opts); 2822 qemu_add_opts(&qemu_global_opts); 2823 qemu_add_opts(&qemu_mon_opts); 2824 qemu_add_opts(&qemu_trace_opts); 2825 qemu_plugin_add_opts(); 2826 qemu_add_opts(&qemu_option_rom_opts); 2827 qemu_add_opts(&qemu_accel_opts); 2828 qemu_add_opts(&qemu_mem_opts); 2829 qemu_add_opts(&qemu_smp_opts); 2830 qemu_add_opts(&qemu_boot_opts); 2831 qemu_add_opts(&qemu_add_fd_opts); 2832 qemu_add_opts(&qemu_object_opts); 2833 qemu_add_opts(&qemu_tpmdev_opts); 2834 qemu_add_opts(&qemu_overcommit_opts); 2835 qemu_add_opts(&qemu_msg_opts); 2836 qemu_add_opts(&qemu_name_opts); 2837 qemu_add_opts(&qemu_numa_opts); 2838 qemu_add_opts(&qemu_icount_opts); 2839 qemu_add_opts(&qemu_semihosting_config_opts); 2840 qemu_add_opts(&qemu_fw_cfg_opts); 2841 qemu_add_opts(&qemu_action_opts); 2842 qemu_add_run_with_opts(); 2843 module_call_init(MODULE_INIT_OPTS); 2844 2845 error_init(argv[0]); 2846 qemu_init_exec_dir(argv[0]); 2847 2848 os_setup_limits(); 2849 2850 qemu_init_arch_modules(); 2851 2852 qemu_init_subsystems(); 2853 2854 /* first pass of option parsing */ 2855 optind = 1; 2856 while (optind < argc) { 2857 if (argv[optind][0] != '-') { 2858 /* disk image */ 2859 optind++; 2860 } else { 2861 const QEMUOption *popt; 2862 2863 popt = lookup_opt(argc, argv, &optarg, &optind); 2864 switch (popt->index) { 2865 case QEMU_OPTION_nouserconfig: 2866 userconfig = false; 2867 break; 2868 } 2869 } 2870 } 2871 2872 machine_opts_dict = qdict_new(); 2873 if (userconfig) { 2874 qemu_read_default_config_file(&error_fatal); 2875 } 2876 2877 /* second pass of option parsing */ 2878 optind = 1; 2879 for(;;) { 2880 if (optind >= argc) 2881 break; 2882 if (argv[optind][0] != '-') { 2883 loc_set_cmdline(argv, optind, 1); 2884 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); 2885 } else { 2886 const QEMUOption *popt; 2887 2888 popt = lookup_opt(argc, argv, &optarg, &optind); 2889 if (!(popt->arch_mask & arch_type)) { 2890 error_report("Option not supported for this target"); 2891 exit(1); 2892 } 2893 switch(popt->index) { 2894 case QEMU_OPTION_cpu: 2895 /* hw initialization will check this */ 2896 cpu_option = optarg; 2897 break; 2898 case QEMU_OPTION_hda: 2899 case QEMU_OPTION_hdb: 2900 case QEMU_OPTION_hdc: 2901 case QEMU_OPTION_hdd: 2902 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, 2903 HD_OPTS); 2904 break; 2905 case QEMU_OPTION_blockdev: 2906 { 2907 Visitor *v; 2908 BlockdevOptionsQueueEntry *bdo; 2909 2910 v = qobject_input_visitor_new_str(optarg, "driver", 2911 &error_fatal); 2912 2913 bdo = g_new(BlockdevOptionsQueueEntry, 1); 2914 visit_type_BlockdevOptions(v, NULL, &bdo->bdo, 2915 &error_fatal); 2916 visit_free(v); 2917 loc_save(&bdo->loc); 2918 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); 2919 break; 2920 } 2921 case QEMU_OPTION_drive: 2922 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), 2923 optarg, false); 2924 if (opts == NULL) { 2925 exit(1); 2926 } 2927 break; 2928 case QEMU_OPTION_set: 2929 qemu_set_option(optarg, &error_fatal); 2930 break; 2931 case QEMU_OPTION_global: 2932 if (qemu_global_option(optarg) != 0) 2933 exit(1); 2934 break; 2935 case QEMU_OPTION_mtdblock: 2936 drive_add(IF_MTD, -1, optarg, MTD_OPTS); 2937 break; 2938 case QEMU_OPTION_sd: 2939 drive_add(IF_SD, -1, optarg, SD_OPTS); 2940 break; 2941 case QEMU_OPTION_pflash: 2942 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); 2943 break; 2944 case QEMU_OPTION_snapshot: 2945 snapshot = 1; 2946 replay_add_blocker("-snapshot"); 2947 break; 2948 case QEMU_OPTION_numa: 2949 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), 2950 optarg, true); 2951 if (!opts) { 2952 exit(1); 2953 } 2954 break; 2955 case QEMU_OPTION_display: 2956 parse_display(optarg); 2957 break; 2958 case QEMU_OPTION_nographic: 2959 qdict_put_str(machine_opts_dict, "graphics", "off"); 2960 nographic = true; 2961 dpy.type = DISPLAY_TYPE_NONE; 2962 break; 2963 case QEMU_OPTION_kernel: 2964 qdict_put_str(machine_opts_dict, "kernel", optarg); 2965 break; 2966 case QEMU_OPTION_shim: 2967 qdict_put_str(machine_opts_dict, "shim", optarg); 2968 break; 2969 case QEMU_OPTION_initrd: 2970 qdict_put_str(machine_opts_dict, "initrd", optarg); 2971 break; 2972 case QEMU_OPTION_append: 2973 qdict_put_str(machine_opts_dict, "append", optarg); 2974 break; 2975 case QEMU_OPTION_dtb: 2976 qdict_put_str(machine_opts_dict, "dtb", optarg); 2977 break; 2978 case QEMU_OPTION_cdrom: 2979 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); 2980 break; 2981 case QEMU_OPTION_boot: 2982 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); 2983 break; 2984 case QEMU_OPTION_fda: 2985 case QEMU_OPTION_fdb: 2986 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, 2987 optarg, FD_OPTS); 2988 break; 2989 case QEMU_OPTION_no_fd_bootchk: 2990 qdict_put_str(machine_opts_dict, "fd-bootchk", "off"); 2991 break; 2992 case QEMU_OPTION_netdev: 2993 default_net = 0; 2994 if (netdev_is_modern(optarg)) { 2995 netdev_parse_modern(optarg); 2996 } else { 2997 net_client_parse(qemu_find_opts("netdev"), optarg); 2998 } 2999 break; 3000 case QEMU_OPTION_nic: 3001 default_net = 0; 3002 net_client_parse(qemu_find_opts("nic"), optarg); 3003 break; 3004 case QEMU_OPTION_net: 3005 default_net = 0; 3006 net_client_parse(qemu_find_opts("net"), optarg); 3007 break; 3008 #ifdef CONFIG_LIBISCSI 3009 case QEMU_OPTION_iscsi: 3010 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), 3011 optarg, false); 3012 if (!opts) { 3013 exit(1); 3014 } 3015 break; 3016 #endif 3017 case QEMU_OPTION_audiodev: 3018 default_audio = 0; 3019 audio_parse_option(optarg); 3020 break; 3021 case QEMU_OPTION_audio: { 3022 bool help; 3023 char *model = NULL; 3024 Audiodev *dev = NULL; 3025 Visitor *v; 3026 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); 3027 default_audio = 0; 3028 if (help || (qdict_haskey(dict, "driver") && 3029 is_help_option(qdict_get_str(dict, "driver")))) { 3030 audio_help(); 3031 exit(EXIT_SUCCESS); 3032 } 3033 if (!qdict_haskey(dict, "id")) { 3034 qdict_put_str(dict, "id", "audiodev0"); 3035 } 3036 if (qdict_haskey(dict, "model")) { 3037 model = g_strdup(qdict_get_str(dict, "model")); 3038 qdict_del(dict, "model"); 3039 if (is_help_option(model)) { 3040 show_valid_soundhw(); 3041 exit(0); 3042 } 3043 } 3044 v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 3045 qobject_unref(dict); 3046 visit_type_Audiodev(v, NULL, &dev, &error_fatal); 3047 visit_free(v); 3048 if (model) { 3049 audio_define(dev); 3050 select_soundhw(model, dev->id); 3051 g_free(model); 3052 } else { 3053 audio_define_default(dev, &error_fatal); 3054 } 3055 break; 3056 } 3057 case QEMU_OPTION_h: 3058 help(0); 3059 break; 3060 case QEMU_OPTION_version: 3061 version(); 3062 exit(0); 3063 break; 3064 case QEMU_OPTION_m: 3065 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); 3066 if (opts == NULL) { 3067 exit(1); 3068 } 3069 break; 3070 #ifdef CONFIG_TPM 3071 case QEMU_OPTION_tpmdev: 3072 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { 3073 exit(1); 3074 } 3075 break; 3076 #endif 3077 case QEMU_OPTION_mempath: 3078 mem_path = optarg; 3079 break; 3080 case QEMU_OPTION_mem_prealloc: 3081 mem_prealloc = 1; 3082 break; 3083 case QEMU_OPTION_d: 3084 log_mask = optarg; 3085 break; 3086 case QEMU_OPTION_D: 3087 log_file = optarg; 3088 break; 3089 case QEMU_OPTION_DFILTER: 3090 qemu_set_dfilter_ranges(optarg, &error_fatal); 3091 break; 3092 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) 3093 case QEMU_OPTION_perfmap: 3094 perf_enable_perfmap(); 3095 break; 3096 case QEMU_OPTION_jitdump: 3097 perf_enable_jitdump(); 3098 break; 3099 #endif 3100 case QEMU_OPTION_seed: 3101 qemu_guest_random_seed_main(optarg, &error_fatal); 3102 break; 3103 case QEMU_OPTION_s: 3104 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); 3105 break; 3106 case QEMU_OPTION_gdb: 3107 add_device_config(DEV_GDB, optarg); 3108 break; 3109 case QEMU_OPTION_L: 3110 if (is_help_option(optarg)) { 3111 list_data_dirs = true; 3112 } else { 3113 qemu_add_data_dir(g_strdup(optarg)); 3114 } 3115 break; 3116 case QEMU_OPTION_bios: 3117 qdict_put_str(machine_opts_dict, "firmware", optarg); 3118 break; 3119 case QEMU_OPTION_S: 3120 autostart = 0; 3121 break; 3122 case QEMU_OPTION_k: 3123 keyboard_layout = optarg; 3124 break; 3125 case QEMU_OPTION_vga: 3126 vga_model = optarg; 3127 default_vga = 0; 3128 break; 3129 case QEMU_OPTION_g: 3130 { 3131 const char *p; 3132 int w, h, depth; 3133 p = optarg; 3134 w = strtol(p, (char **)&p, 10); 3135 if (w <= 0) { 3136 graphic_error: 3137 error_report("invalid resolution or depth"); 3138 exit(1); 3139 } 3140 if (*p != 'x') 3141 goto graphic_error; 3142 p++; 3143 h = strtol(p, (char **)&p, 10); 3144 if (h <= 0) 3145 goto graphic_error; 3146 if (*p == 'x') { 3147 p++; 3148 depth = strtol(p, (char **)&p, 10); 3149 if (depth != 1 && depth != 2 && depth != 4 && 3150 depth != 8 && depth != 15 && depth != 16 && 3151 depth != 24 && depth != 32) 3152 goto graphic_error; 3153 } else if (*p == '\0') { 3154 depth = graphic_depth; 3155 } else { 3156 goto graphic_error; 3157 } 3158 3159 graphic_width = w; 3160 graphic_height = h; 3161 graphic_depth = depth; 3162 } 3163 break; 3164 case QEMU_OPTION_echr: 3165 { 3166 char *r; 3167 term_escape_char = strtol(optarg, &r, 0); 3168 if (r == optarg) 3169 printf("Bad argument to echr\n"); 3170 break; 3171 } 3172 case QEMU_OPTION_monitor: 3173 default_monitor = 0; 3174 if (strncmp(optarg, "none", 4)) { 3175 monitor_parse(optarg, "readline", false); 3176 } 3177 break; 3178 case QEMU_OPTION_qmp: 3179 monitor_parse(optarg, "control", false); 3180 default_monitor = 0; 3181 break; 3182 case QEMU_OPTION_qmp_pretty: 3183 monitor_parse(optarg, "control", true); 3184 default_monitor = 0; 3185 break; 3186 case QEMU_OPTION_mon: 3187 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, 3188 true); 3189 if (!opts) { 3190 exit(1); 3191 } 3192 default_monitor = 0; 3193 break; 3194 case QEMU_OPTION_chardev: 3195 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), 3196 optarg, true); 3197 if (!opts) { 3198 exit(1); 3199 } 3200 break; 3201 case QEMU_OPTION_fsdev: 3202 olist = qemu_find_opts("fsdev"); 3203 if (!olist) { 3204 error_report("fsdev support is disabled"); 3205 exit(1); 3206 } 3207 opts = qemu_opts_parse_noisily(olist, optarg, true); 3208 if (!opts) { 3209 exit(1); 3210 } 3211 break; 3212 case QEMU_OPTION_virtfs: { 3213 QemuOpts *fsdev; 3214 QemuOpts *device; 3215 const char *writeout, *sock_fd, *socket, *path, *security_model, 3216 *multidevs; 3217 3218 olist = qemu_find_opts("virtfs"); 3219 if (!olist) { 3220 error_report("virtfs support is disabled"); 3221 exit(1); 3222 } 3223 opts = qemu_opts_parse_noisily(olist, optarg, true); 3224 if (!opts) { 3225 exit(1); 3226 } 3227 3228 if (qemu_opt_get(opts, "fsdriver") == NULL || 3229 qemu_opt_get(opts, "mount_tag") == NULL) { 3230 error_report("Usage: -virtfs fsdriver,mount_tag=tag"); 3231 exit(1); 3232 } 3233 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), 3234 qemu_opts_id(opts) ?: 3235 qemu_opt_get(opts, "mount_tag"), 3236 1, NULL); 3237 if (!fsdev) { 3238 error_report("duplicate or invalid fsdev id: %s", 3239 qemu_opt_get(opts, "mount_tag")); 3240 exit(1); 3241 } 3242 3243 writeout = qemu_opt_get(opts, "writeout"); 3244 if (writeout) { 3245 #ifdef CONFIG_SYNC_FILE_RANGE 3246 qemu_opt_set(fsdev, "writeout", writeout, &error_abort); 3247 #else 3248 error_report("writeout=immediate not supported " 3249 "on this platform"); 3250 exit(1); 3251 #endif 3252 } 3253 qemu_opt_set(fsdev, "fsdriver", 3254 qemu_opt_get(opts, "fsdriver"), &error_abort); 3255 path = qemu_opt_get(opts, "path"); 3256 if (path) { 3257 qemu_opt_set(fsdev, "path", path, &error_abort); 3258 } 3259 security_model = qemu_opt_get(opts, "security_model"); 3260 if (security_model) { 3261 qemu_opt_set(fsdev, "security_model", security_model, 3262 &error_abort); 3263 } 3264 socket = qemu_opt_get(opts, "socket"); 3265 if (socket) { 3266 qemu_opt_set(fsdev, "socket", socket, &error_abort); 3267 } 3268 sock_fd = qemu_opt_get(opts, "sock_fd"); 3269 if (sock_fd) { 3270 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); 3271 } 3272 3273 qemu_opt_set_bool(fsdev, "readonly", 3274 qemu_opt_get_bool(opts, "readonly", 0), 3275 &error_abort); 3276 multidevs = qemu_opt_get(opts, "multidevs"); 3277 if (multidevs) { 3278 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); 3279 } 3280 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, 3281 &error_abort); 3282 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); 3283 qemu_opt_set(device, "fsdev", 3284 qemu_opts_id(fsdev), &error_abort); 3285 qemu_opt_set(device, "mount_tag", 3286 qemu_opt_get(opts, "mount_tag"), &error_abort); 3287 break; 3288 } 3289 case QEMU_OPTION_serial: 3290 add_device_config(DEV_SERIAL, optarg); 3291 default_serial = 0; 3292 if (strncmp(optarg, "mon:", 4) == 0) { 3293 default_monitor = 0; 3294 } 3295 break; 3296 case QEMU_OPTION_action: 3297 olist = qemu_find_opts("action"); 3298 if (!qemu_opts_parse_noisily(olist, optarg, false)) { 3299 exit(1); 3300 } 3301 break; 3302 case QEMU_OPTION_watchdog_action: { 3303 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); 3304 qemu_opt_set(opts, "watchdog", optarg, &error_abort); 3305 break; 3306 } 3307 case QEMU_OPTION_parallel: 3308 add_device_config(DEV_PARALLEL, optarg); 3309 default_parallel = 0; 3310 if (strncmp(optarg, "mon:", 4) == 0) { 3311 default_monitor = 0; 3312 } 3313 break; 3314 case QEMU_OPTION_debugcon: 3315 add_device_config(DEV_DEBUGCON, optarg); 3316 break; 3317 case QEMU_OPTION_loadvm: 3318 loadvm = optarg; 3319 break; 3320 case QEMU_OPTION_full_screen: 3321 dpy.has_full_screen = true; 3322 dpy.full_screen = true; 3323 break; 3324 case QEMU_OPTION_pidfile: 3325 pid_file = optarg; 3326 break; 3327 case QEMU_OPTION_win2k_hack: 3328 object_register_sugar_prop("ide-device", "win2k-install-hack", "true", true); 3329 break; 3330 case QEMU_OPTION_acpitable: 3331 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), 3332 optarg, true); 3333 if (!opts) { 3334 exit(1); 3335 } 3336 acpi_table_add(opts, &error_fatal); 3337 break; 3338 case QEMU_OPTION_smbios: 3339 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), 3340 optarg, false); 3341 if (!opts) { 3342 exit(1); 3343 } 3344 smbios_entry_add(opts, &error_fatal); 3345 break; 3346 case QEMU_OPTION_fwcfg: 3347 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), 3348 optarg, true); 3349 if (opts == NULL) { 3350 exit(1); 3351 } 3352 break; 3353 case QEMU_OPTION_preconfig: 3354 preconfig_requested = true; 3355 break; 3356 case QEMU_OPTION_enable_kvm: 3357 qdict_put_str(machine_opts_dict, "accel", "kvm"); 3358 break; 3359 case QEMU_OPTION_M: 3360 case QEMU_OPTION_machine: 3361 { 3362 bool help; 3363 3364 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); 3365 if (help) { 3366 machine_help_func(machine_opts_dict); 3367 exit(EXIT_SUCCESS); 3368 } 3369 break; 3370 } 3371 case QEMU_OPTION_accel: 3372 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), 3373 optarg, true); 3374 optarg = qemu_opt_get(accel_opts, "accel"); 3375 if (!optarg || is_help_option(optarg)) { 3376 printf("Accelerators supported in QEMU binary:\n"); 3377 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, 3378 false); 3379 for (el = accel_list; el; el = el->next) { 3380 gchar *typename = g_strdup(object_class_get_name( 3381 OBJECT_CLASS(el->data))); 3382 /* omit qtest which is used for tests only */ 3383 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && 3384 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { 3385 gchar **optname = g_strsplit(typename, 3386 ACCEL_CLASS_SUFFIX, 0); 3387 printf("%s\n", optname[0]); 3388 g_strfreev(optname); 3389 } 3390 g_free(typename); 3391 } 3392 g_slist_free(accel_list); 3393 exit(0); 3394 } 3395 break; 3396 case QEMU_OPTION_usb: 3397 qdict_put_str(machine_opts_dict, "usb", "on"); 3398 break; 3399 case QEMU_OPTION_usbdevice: 3400 qdict_put_str(machine_opts_dict, "usb", "on"); 3401 add_device_config(DEV_USB, optarg); 3402 break; 3403 case QEMU_OPTION_device: 3404 if (optarg[0] == '{') { 3405 QObject *obj = qobject_from_json(optarg, &error_fatal); 3406 DeviceOption *opt = g_new0(DeviceOption, 1); 3407 opt->opts = qobject_to(QDict, obj); 3408 loc_save(&opt->loc); 3409 assert(opt->opts != NULL); 3410 QTAILQ_INSERT_TAIL(&device_opts, opt, next); 3411 } else { 3412 if (!qemu_opts_parse_noisily(qemu_find_opts("device"), 3413 optarg, true)) { 3414 exit(1); 3415 } 3416 } 3417 break; 3418 case QEMU_OPTION_smp: 3419 machine_parse_property_opt(qemu_find_opts("smp-opts"), 3420 "smp", optarg); 3421 break; 3422 #ifdef CONFIG_VNC 3423 case QEMU_OPTION_vnc: 3424 vnc_parse(optarg); 3425 display_remote++; 3426 break; 3427 #endif 3428 case QEMU_OPTION_no_reboot: 3429 olist = qemu_find_opts("action"); 3430 qemu_opts_parse_noisily(olist, "reboot=shutdown", false); 3431 break; 3432 case QEMU_OPTION_no_shutdown: 3433 olist = qemu_find_opts("action"); 3434 qemu_opts_parse_noisily(olist, "shutdown=pause", false); 3435 break; 3436 case QEMU_OPTION_uuid: 3437 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { 3438 error_report("failed to parse UUID string: wrong format"); 3439 exit(1); 3440 } 3441 qemu_uuid_set = true; 3442 break; 3443 case QEMU_OPTION_option_rom: 3444 if (nb_option_roms >= MAX_OPTION_ROMS) { 3445 error_report("too many option ROMs"); 3446 exit(1); 3447 } 3448 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), 3449 optarg, true); 3450 if (!opts) { 3451 exit(1); 3452 } 3453 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); 3454 option_rom[nb_option_roms].bootindex = 3455 qemu_opt_get_number(opts, "bootindex", -1); 3456 if (!option_rom[nb_option_roms].name) { 3457 error_report("Option ROM file is not specified"); 3458 exit(1); 3459 } 3460 nb_option_roms++; 3461 break; 3462 case QEMU_OPTION_semihosting: 3463 qemu_semihosting_enable(); 3464 break; 3465 case QEMU_OPTION_semihosting_config: 3466 if (qemu_semihosting_config_options(optarg) != 0) { 3467 exit(1); 3468 } 3469 break; 3470 case QEMU_OPTION_name: 3471 opts = qemu_opts_parse_noisily(qemu_find_opts("name"), 3472 optarg, true); 3473 if (!opts) { 3474 exit(1); 3475 } 3476 /* Capture guest name if -msg guest-name is used later */ 3477 error_guest_name = qemu_opt_get(opts, "guest"); 3478 break; 3479 case QEMU_OPTION_prom_env: 3480 if (nb_prom_envs >= MAX_PROM_ENVS) { 3481 error_report("too many prom variables"); 3482 exit(1); 3483 } 3484 prom_envs[nb_prom_envs] = optarg; 3485 nb_prom_envs++; 3486 break; 3487 case QEMU_OPTION_old_param: 3488 warn_report("-old-param is deprecated"); 3489 old_param = 1; 3490 break; 3491 case QEMU_OPTION_rtc: 3492 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, 3493 false); 3494 if (!opts) { 3495 exit(1); 3496 } 3497 break; 3498 case QEMU_OPTION_icount: 3499 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), 3500 optarg, true); 3501 if (!icount_opts) { 3502 exit(1); 3503 } 3504 break; 3505 case QEMU_OPTION_incoming: 3506 if (!incoming) { 3507 runstate_set(RUN_STATE_INMIGRATE); 3508 } 3509 incoming_option_parse(optarg); 3510 break; 3511 case QEMU_OPTION_only_migratable: 3512 only_migratable = 1; 3513 break; 3514 case QEMU_OPTION_nodefaults: 3515 has_defaults = 0; 3516 break; 3517 case QEMU_OPTION_xen_domid: 3518 if (!(accel_find("xen")) && !(accel_find("kvm"))) { 3519 error_report("Option not supported for this target"); 3520 exit(1); 3521 } 3522 xen_domid = atoi(optarg); 3523 break; 3524 case QEMU_OPTION_xen_attach: 3525 if (!(accel_find("xen"))) { 3526 error_report("Option not supported for this target"); 3527 exit(1); 3528 } 3529 xen_mode = XEN_ATTACH; 3530 break; 3531 case QEMU_OPTION_xen_domid_restrict: 3532 if (!(accel_find("xen"))) { 3533 error_report("Option not supported for this target"); 3534 exit(1); 3535 } 3536 xen_domid_restrict = true; 3537 break; 3538 case QEMU_OPTION_trace: 3539 trace_opt_parse(optarg); 3540 break; 3541 case QEMU_OPTION_plugin: 3542 qemu_plugin_opt_parse(optarg, &plugin_list); 3543 break; 3544 case QEMU_OPTION_readconfig: 3545 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); 3546 break; 3547 #ifdef CONFIG_SPICE 3548 case QEMU_OPTION_spice: 3549 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false); 3550 if (!opts) { 3551 exit(1); 3552 } 3553 display_remote++; 3554 break; 3555 #endif 3556 case QEMU_OPTION_qtest: 3557 qtest_chrdev = optarg; 3558 break; 3559 case QEMU_OPTION_qtest_log: 3560 qtest_log = optarg; 3561 break; 3562 case QEMU_OPTION_sandbox: 3563 olist = qemu_find_opts("sandbox"); 3564 if (!olist) { 3565 #ifndef CONFIG_SECCOMP 3566 error_report("-sandbox support is not enabled " 3567 "in this QEMU binary"); 3568 #endif 3569 exit(1); 3570 } 3571 3572 opts = qemu_opts_parse_noisily(olist, optarg, true); 3573 if (!opts) { 3574 exit(1); 3575 } 3576 break; 3577 case QEMU_OPTION_add_fd: 3578 #ifndef _WIN32 3579 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), 3580 optarg, false); 3581 if (!opts) { 3582 exit(1); 3583 } 3584 #else 3585 error_report("File descriptor passing is disabled on this " 3586 "platform"); 3587 exit(1); 3588 #endif 3589 break; 3590 case QEMU_OPTION_object: 3591 object_option_parse(optarg); 3592 break; 3593 case QEMU_OPTION_overcommit: 3594 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), 3595 optarg, false); 3596 if (!opts) { 3597 exit(1); 3598 } 3599 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", enable_mlock); 3600 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", enable_cpu_pm); 3601 break; 3602 case QEMU_OPTION_compat: 3603 { 3604 CompatPolicy *opts_policy; 3605 Visitor *v; 3606 3607 v = qobject_input_visitor_new_str(optarg, NULL, 3608 &error_fatal); 3609 3610 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); 3611 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); 3612 3613 qapi_free_CompatPolicy(opts_policy); 3614 visit_free(v); 3615 break; 3616 } 3617 case QEMU_OPTION_msg: 3618 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, 3619 false); 3620 if (!opts) { 3621 exit(1); 3622 } 3623 configure_msg(opts); 3624 break; 3625 case QEMU_OPTION_dump_vmstate: 3626 if (vmstate_dump_file) { 3627 error_report("only one '-dump-vmstate' " 3628 "option may be given"); 3629 exit(1); 3630 } 3631 vmstate_dump_file = fopen(optarg, "w"); 3632 if (vmstate_dump_file == NULL) { 3633 error_report("open %s: %s", optarg, strerror(errno)); 3634 exit(1); 3635 } 3636 break; 3637 case QEMU_OPTION_enable_sync_profile: 3638 qsp_enable(); 3639 break; 3640 case QEMU_OPTION_nouserconfig: 3641 /* Nothing to be parsed here. Especially, do not error out below. */ 3642 break; 3643 #if defined(CONFIG_POSIX) 3644 case QEMU_OPTION_daemonize: 3645 os_set_daemonize(true); 3646 break; 3647 case QEMU_OPTION_run_with: { 3648 const char *str; 3649 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), 3650 optarg, false); 3651 if (!opts) { 3652 exit(1); 3653 } 3654 #if defined(CONFIG_LINUX) 3655 if (qemu_opt_get_bool(opts, "async-teardown", false)) { 3656 init_async_teardown(); 3657 } 3658 #endif 3659 str = qemu_opt_get(opts, "chroot"); 3660 if (str) { 3661 os_set_chroot(str); 3662 } 3663 str = qemu_opt_get(opts, "user"); 3664 if (str) { 3665 if (!os_set_runas(str)) { 3666 error_report("User \"%s\" doesn't exist" 3667 " (and is not <uid>:<gid>)", 3668 optarg); 3669 exit(1); 3670 } 3671 } 3672 3673 break; 3674 } 3675 #endif /* CONFIG_POSIX */ 3676 3677 default: 3678 error_report("Option not supported in this build"); 3679 exit(1); 3680 } 3681 } 3682 } 3683 /* 3684 * Clear error location left behind by the loop. 3685 * Best done right after the loop. Do not insert code here! 3686 */ 3687 loc_set_none(); 3688 3689 qemu_validate_options(machine_opts_dict); 3690 qemu_process_sugar_options(); 3691 3692 /* 3693 * These options affect everything else and should be processed 3694 * before daemonizing. 3695 */ 3696 qemu_process_early_options(); 3697 3698 qemu_process_help_options(); 3699 qemu_maybe_daemonize(pid_file); 3700 3701 /* 3702 * The trace backend must be initialized after daemonizing. 3703 * trace_init_backends() will call st_init(), which will create the 3704 * trace thread in the parent, and also register st_flush_trace_buffer() 3705 * in atexit(). This function will force the parent to wait for the 3706 * writeout thread to finish, which will not occur, and the parent 3707 * process will be left in the host. 3708 */ 3709 if (!trace_init_backends()) { 3710 exit(1); 3711 } 3712 trace_init_file(); 3713 3714 qemu_init_main_loop(&error_fatal); 3715 cpu_timers_init(); 3716 3717 user_register_global_props(); 3718 replay_configure(icount_opts); 3719 3720 configure_rtc(qemu_find_opts_singleton("rtc")); 3721 3722 /* Transfer QemuOpts options into machine options */ 3723 parse_memory_options(); 3724 3725 qemu_create_machine(machine_opts_dict); 3726 3727 /* 3728 * Load incoming CPR state before any devices are created, because it 3729 * contains file descriptors that are needed in device initialization code. 3730 */ 3731 cpr_state_load(incoming_channels[MIGRATION_CHANNEL_TYPE_CPR], &error_fatal); 3732 3733 suspend_mux_open(); 3734 3735 qemu_disable_default_devices(); 3736 qemu_setup_display(); 3737 qemu_create_default_devices(); 3738 qemu_create_early_backends(); 3739 3740 qemu_apply_legacy_machine_options(machine_opts_dict); 3741 qemu_apply_machine_options(machine_opts_dict); 3742 qobject_unref(machine_opts_dict); 3743 phase_advance(PHASE_MACHINE_CREATED); 3744 3745 /* 3746 * Note: uses machine properties such as kernel-irqchip, must run 3747 * after qemu_apply_machine_options. 3748 */ 3749 configure_accelerators(argv[0]); 3750 phase_advance(PHASE_ACCEL_CREATED); 3751 3752 /* 3753 * Beware, QOM objects created before this point miss global and 3754 * compat properties. 3755 * 3756 * Global properties get set up by qdev_prop_register_global(), 3757 * called from user_register_global_props(), and certain option 3758 * desugaring. Also in CPU feature desugaring (buried in 3759 * parse_cpu_option()), which happens below this point, but may 3760 * only target the CPU type, which can only be created after 3761 * parse_cpu_option() returned the type. 3762 * 3763 * Machine compat properties: object_set_machine_compat_props(). 3764 * Accelerator compat props: object_set_accelerator_compat_props(), 3765 * called from do_configure_accelerator(). 3766 */ 3767 3768 machine_class = MACHINE_GET_CLASS(current_machine); 3769 if (!qtest_enabled() && machine_class->deprecation_reason) { 3770 warn_report("Machine type '%s' is deprecated: %s", 3771 machine_class->name, machine_class->deprecation_reason); 3772 } 3773 3774 /* 3775 * Create backends before creating migration objects, so that it can 3776 * check against compatibilities on the backend memories (e.g. postcopy 3777 * over memory-backend-file objects). 3778 */ 3779 qemu_create_late_backends(); 3780 phase_advance(PHASE_LATE_BACKENDS_CREATED); 3781 3782 /* 3783 * Note: creates a QOM object, must run only after global and 3784 * compat properties have been set up. 3785 */ 3786 migration_object_init(); 3787 3788 /* parse features once if machine provides default cpu_type */ 3789 current_machine->cpu_type = machine_class_default_cpu_type(machine_class); 3790 if (cpu_option) { 3791 current_machine->cpu_type = parse_cpu_option(cpu_option); 3792 } 3793 /* NB: for machine none cpu_type could STILL be NULL here! */ 3794 3795 qemu_resolve_machine_memdev(); 3796 parse_numa_opts(current_machine); 3797 3798 if (vmstate_dump_file) { 3799 /* dump and exit */ 3800 module_load_qom_all(); 3801 dump_vmstate_json_to_file(vmstate_dump_file); 3802 exit(0); 3803 } 3804 3805 if (!preconfig_requested) { 3806 qmp_x_exit_preconfig(&error_fatal); 3807 } 3808 qemu_init_displays(); 3809 accel_setup_post(current_machine); 3810 os_setup_post(); 3811 resume_mux_open(); 3812 } 3813