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