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 "sysemu/reset.h" 43 #include "sysemu/runstate.h" 44 #include "sysemu/runstate-action.h" 45 #include "sysemu/seccomp.h" 46 #include "sysemu/tcg.h" 47 #include "sysemu/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 "sysemu/sysemu.h" 68 #include "sysemu/numa.h" 69 #include "sysemu/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 "sysemu/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 "sysemu/tpm.h" 83 #include "sysemu/dma.h" 84 #include "hw/audio/soundhw.h" 85 #include "audio/audio.h" 86 #include "sysemu/cpus.h" 87 #include "sysemu/cpu-timers.h" 88 #include "migration/colo.h" 89 #include "migration/postcopy-ram.h" 90 #include "sysemu/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 "sysemu/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 "sysemu/arch_init.h" 110 #include "exec/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 "sysemu/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 "sysemu/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 int usb_device_add(const char *devname) 815 { 816 USBDevice *dev = NULL; 817 818 if (!machine_usb(current_machine)) { 819 return -1; 820 } 821 822 dev = usbdevice_create(devname); 823 if (!dev) 824 return -1; 825 826 return 0; 827 } 828 829 static int usb_parse(const char *cmdline) 830 { 831 int r; 832 r = usb_device_add(cmdline); 833 if (r < 0) { 834 error_report("could not add USB device '%s'", cmdline); 835 } 836 return r; 837 } 838 839 /***********************************************************/ 840 /* machine registration */ 841 842 static MachineClass *find_machine(const char *name, GSList *machines) 843 { 844 GSList *el; 845 846 for (el = machines; el; el = el->next) { 847 MachineClass *mc = el->data; 848 849 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) { 850 return mc; 851 } 852 } 853 854 return NULL; 855 } 856 857 static MachineClass *find_default_machine(GSList *machines) 858 { 859 GSList *el; 860 MachineClass *default_machineclass = NULL; 861 862 for (el = machines; el; el = el->next) { 863 MachineClass *mc = el->data; 864 865 if (mc->is_default) { 866 assert(default_machineclass == NULL && "Multiple default machines"); 867 default_machineclass = mc; 868 } 869 } 870 871 return default_machineclass; 872 } 873 874 static void version(void) 875 { 876 printf("QEMU emulator version " QEMU_FULL_VERSION "\n" 877 QEMU_COPYRIGHT "\n"); 878 } 879 880 static void help(int exitcode) 881 { 882 version(); 883 printf("usage: %s [options] [disk_image]\n\n" 884 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n", 885 g_get_prgname()); 886 887 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 888 if ((arch_mask) & arch_type) \ 889 fputs(opt_help, stdout); 890 891 #define ARCHHEADING(text, arch_mask) \ 892 if ((arch_mask) & arch_type) \ 893 puts(stringify(text)); 894 895 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL) 896 897 #include "qemu-options.def" 898 899 printf("\nDuring emulation, the following keys are useful:\n" 900 "ctrl-alt-f toggle full screen\n" 901 "ctrl-alt-n switch to virtual console 'n'\n" 902 "ctrl-alt-g toggle mouse and keyboard grab\n" 903 "\n" 904 "When using -nographic, press 'ctrl-a h' to get some help.\n" 905 "\n" 906 QEMU_HELP_BOTTOM "\n"); 907 908 exit(exitcode); 909 } 910 911 enum { 912 913 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 914 opt_enum, 915 #define DEFHEADING(text) 916 #define ARCHHEADING(text, arch_mask) 917 918 #include "qemu-options.def" 919 }; 920 921 #define HAS_ARG 0x0001 922 923 typedef struct QEMUOption { 924 const char *name; 925 int flags; 926 int index; 927 uint32_t arch_mask; 928 } QEMUOption; 929 930 static const QEMUOption qemu_options[] = { 931 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL }, 932 933 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 934 { option, opt_arg, opt_enum, arch_mask }, 935 #define DEFHEADING(text) 936 #define ARCHHEADING(text, arch_mask) 937 938 #include "qemu-options.def" 939 { /* end of list */ } 940 }; 941 942 typedef struct VGAInterfaceInfo { 943 const char *opt_name; /* option name */ 944 const char *name; /* human-readable name */ 945 /* Class names indicating that support is available. 946 * If no class is specified, the interface is always available */ 947 const char *class_names[2]; 948 } VGAInterfaceInfo; 949 950 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = { 951 [VGA_NONE] = { 952 .opt_name = "none", 953 .name = "no graphic card", 954 }, 955 [VGA_STD] = { 956 .opt_name = "std", 957 .name = "standard VGA", 958 .class_names = { "VGA", "isa-vga" }, 959 }, 960 [VGA_CIRRUS] = { 961 .opt_name = "cirrus", 962 .name = "Cirrus VGA", 963 .class_names = { "cirrus-vga", "isa-cirrus-vga" }, 964 }, 965 [VGA_VMWARE] = { 966 .opt_name = "vmware", 967 .name = "VMWare SVGA", 968 .class_names = { "vmware-svga" }, 969 }, 970 [VGA_VIRTIO] = { 971 .opt_name = "virtio", 972 .name = "Virtio VGA", 973 .class_names = { "virtio-vga" }, 974 }, 975 [VGA_QXL] = { 976 .opt_name = "qxl", 977 .name = "QXL VGA", 978 .class_names = { "qxl-vga" }, 979 }, 980 [VGA_TCX] = { 981 .opt_name = "tcx", 982 .name = "TCX framebuffer", 983 .class_names = { "sun-tcx" }, 984 }, 985 [VGA_CG3] = { 986 .opt_name = "cg3", 987 .name = "CG3 framebuffer", 988 .class_names = { "cgthree" }, 989 }, 990 #ifdef CONFIG_XEN_BACKEND 991 [VGA_XENFB] = { 992 .opt_name = "xenfb", 993 .name = "Xen paravirtualized framebuffer", 994 }, 995 #endif 996 }; 997 998 static bool vga_interface_available(VGAInterfaceType t) 999 { 1000 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1001 1002 assert(t < VGA_TYPE_MAX); 1003 1004 if (!ti->class_names[0] || module_object_class_by_name(ti->class_names[0])) { 1005 return true; 1006 } 1007 1008 if (ti->class_names[1] && module_object_class_by_name(ti->class_names[1])) { 1009 return true; 1010 } 1011 1012 return false; 1013 } 1014 1015 static const char * 1016 get_default_vga_model(const MachineClass *machine_class) 1017 { 1018 if (machine_class->default_display) { 1019 for (int t = 0; t < VGA_TYPE_MAX; t++) { 1020 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1021 1022 if (ti->opt_name && vga_interface_available(t) && 1023 g_str_equal(ti->opt_name, machine_class->default_display)) { 1024 return machine_class->default_display; 1025 } 1026 } 1027 1028 warn_report_once("Default display '%s' is not available in this binary", 1029 machine_class->default_display); 1030 return NULL; 1031 } else if (vga_interface_available(VGA_CIRRUS)) { 1032 return "cirrus"; 1033 } else if (vga_interface_available(VGA_STD)) { 1034 return "std"; 1035 } 1036 1037 return NULL; 1038 } 1039 1040 static void select_vgahw(const MachineClass *machine_class, const char *p) 1041 { 1042 const char *opts; 1043 int t; 1044 1045 if (g_str_equal(p, "help")) { 1046 const char *def = get_default_vga_model(machine_class); 1047 1048 for (t = 0; t < VGA_TYPE_MAX; t++) { 1049 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1050 1051 if (vga_interface_available(t) && ti->opt_name) { 1052 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "", 1053 (def && g_str_equal(ti->opt_name, def)) ? 1054 " (default)" : ""); 1055 } 1056 } 1057 exit(0); 1058 } 1059 1060 assert(vga_interface_type == VGA_NONE); 1061 for (t = 0; t < VGA_TYPE_MAX; t++) { 1062 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1063 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) { 1064 if (!vga_interface_available(t)) { 1065 error_report("%s not available", ti->name); 1066 exit(1); 1067 } 1068 vga_interface_type = t; 1069 break; 1070 } 1071 } 1072 if (t == VGA_TYPE_MAX) { 1073 invalid_vga: 1074 error_report("unknown vga type: %s", p); 1075 exit(1); 1076 } 1077 while (*opts) { 1078 const char *nextopt; 1079 1080 if (strstart(opts, ",retrace=", &nextopt)) { 1081 opts = nextopt; 1082 if (strstart(opts, "dumb", &nextopt)) 1083 vga_retrace_method = VGA_RETRACE_DUMB; 1084 else if (strstart(opts, "precise", &nextopt)) 1085 vga_retrace_method = VGA_RETRACE_PRECISE; 1086 else goto invalid_vga; 1087 } else goto invalid_vga; 1088 opts = nextopt; 1089 } 1090 } 1091 1092 static void parse_display_qapi(const char *str) 1093 { 1094 DisplayOptions *opts; 1095 Visitor *v; 1096 1097 v = qobject_input_visitor_new_str(str, "type", &error_fatal); 1098 1099 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); 1100 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts); 1101 1102 qapi_free_DisplayOptions(opts); 1103 visit_free(v); 1104 } 1105 1106 DisplayOptions *qmp_query_display_options(Error **errp) 1107 { 1108 return QAPI_CLONE(DisplayOptions, &dpy); 1109 } 1110 1111 static void parse_display(const char *p) 1112 { 1113 if (is_help_option(p)) { 1114 qemu_display_help(); 1115 exit(0); 1116 } 1117 1118 #ifdef CONFIG_VNC 1119 const char *opts; 1120 1121 if (strstart(p, "vnc", &opts)) { 1122 /* 1123 * vnc isn't a (local) DisplayType but a protocol for remote 1124 * display access. 1125 */ 1126 if (*opts == '=') { 1127 vnc_parse(opts + 1); 1128 display_remote++; 1129 } else { 1130 error_report("VNC requires a display argument vnc=<display>"); 1131 exit(1); 1132 } 1133 return; 1134 } 1135 #endif 1136 1137 parse_display_qapi(p); 1138 } 1139 1140 static inline bool nonempty_str(const char *str) 1141 { 1142 return str && *str; 1143 } 1144 1145 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) 1146 { 1147 gchar *buf; 1148 size_t size; 1149 const char *name, *file, *str, *gen_id; 1150 FWCfgState *fw_cfg = (FWCfgState *) opaque; 1151 1152 if (fw_cfg == NULL) { 1153 error_setg(errp, "fw_cfg device not available"); 1154 return -1; 1155 } 1156 name = qemu_opt_get(opts, "name"); 1157 file = qemu_opt_get(opts, "file"); 1158 str = qemu_opt_get(opts, "string"); 1159 gen_id = qemu_opt_get(opts, "gen_id"); 1160 1161 /* we need the name, and exactly one of: file, content string, gen_id */ 1162 if (!nonempty_str(name) || 1163 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) { 1164 error_setg(errp, "name, plus exactly one of file," 1165 " string and gen_id, are needed"); 1166 return -1; 1167 } 1168 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { 1169 error_setg(errp, "name too long (max. %d char)", 1170 FW_CFG_MAX_FILE_PATH - 1); 1171 return -1; 1172 } 1173 if (nonempty_str(gen_id)) { 1174 /* 1175 * In this particular case where the content is populated 1176 * internally, the "etc/" namespace protection is relaxed, 1177 * so do not emit a warning. 1178 */ 1179 } else if (strncmp(name, "opt/", 4) != 0) { 1180 warn_report("externally provided fw_cfg item names " 1181 "should be prefixed with \"opt/\""); 1182 } 1183 if (nonempty_str(str)) { 1184 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */ 1185 buf = g_memdup(str, size); 1186 } else if (nonempty_str(gen_id)) { 1187 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) { 1188 return -1; 1189 } 1190 return 0; 1191 } else { 1192 GError *err = NULL; 1193 if (!g_file_get_contents(file, &buf, &size, &err)) { 1194 error_setg(errp, "can't load %s: %s", file, err->message); 1195 g_error_free(err); 1196 return -1; 1197 } 1198 } 1199 /* For legacy, keep user files in a specific global order. */ 1200 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); 1201 fw_cfg_add_file(fw_cfg, name, buf, size); 1202 fw_cfg_reset_order_override(fw_cfg); 1203 return 0; 1204 } 1205 1206 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) 1207 { 1208 return qdev_device_help(opts); 1209 } 1210 1211 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) 1212 { 1213 DeviceState *dev; 1214 1215 dev = qdev_device_add(opts, errp); 1216 if (!dev && *errp) { 1217 error_report_err(*errp); 1218 return -1; 1219 } else if (dev) { 1220 object_unref(OBJECT(dev)); 1221 } 1222 return 0; 1223 } 1224 1225 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1226 { 1227 Error *local_err = NULL; 1228 1229 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { 1230 if (local_err) { 1231 error_propagate(errp, local_err); 1232 return -1; 1233 } 1234 exit(0); 1235 } 1236 return 0; 1237 } 1238 1239 #ifdef CONFIG_VIRTFS 1240 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1241 { 1242 return qemu_fsdev_add(opts, errp); 1243 } 1244 #endif 1245 1246 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) 1247 { 1248 return monitor_init_opts(opts, errp); 1249 } 1250 1251 static void monitor_parse(const char *str, const char *mode, bool pretty) 1252 { 1253 static int monitor_device_index = 0; 1254 QemuOpts *opts; 1255 const char *p; 1256 char label[32]; 1257 1258 if (strstart(str, "chardev:", &p)) { 1259 snprintf(label, sizeof(label), "%s", p); 1260 } else { 1261 snprintf(label, sizeof(label), "compat_monitor%d", 1262 monitor_device_index); 1263 opts = qemu_chr_parse_compat(label, str, true); 1264 if (!opts) { 1265 error_report("parse error: %s", str); 1266 exit(1); 1267 } 1268 } 1269 1270 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); 1271 qemu_opt_set(opts, "mode", mode, &error_abort); 1272 qemu_opt_set(opts, "chardev", label, &error_abort); 1273 if (!strcmp(mode, "control")) { 1274 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); 1275 } else { 1276 assert(pretty == false); 1277 } 1278 monitor_device_index++; 1279 } 1280 1281 struct device_config { 1282 enum { 1283 DEV_USB, /* -usbdevice */ 1284 DEV_SERIAL, /* -serial */ 1285 DEV_PARALLEL, /* -parallel */ 1286 DEV_DEBUGCON, /* -debugcon */ 1287 DEV_GDB, /* -gdb, -s */ 1288 DEV_SCLP, /* s390 sclp */ 1289 } type; 1290 const char *cmdline; 1291 Location loc; 1292 QTAILQ_ENTRY(device_config) next; 1293 }; 1294 1295 static QTAILQ_HEAD(, device_config) device_configs = 1296 QTAILQ_HEAD_INITIALIZER(device_configs); 1297 1298 static void add_device_config(int type, const char *cmdline) 1299 { 1300 struct device_config *conf; 1301 1302 conf = g_malloc0(sizeof(*conf)); 1303 conf->type = type; 1304 conf->cmdline = cmdline; 1305 loc_save(&conf->loc); 1306 QTAILQ_INSERT_TAIL(&device_configs, conf, next); 1307 } 1308 1309 static int foreach_device_config(int type, int (*func)(const char *cmdline)) 1310 { 1311 struct device_config *conf; 1312 int rc; 1313 1314 QTAILQ_FOREACH(conf, &device_configs, next) { 1315 if (conf->type != type) 1316 continue; 1317 loc_push_restore(&conf->loc); 1318 rc = func(conf->cmdline); 1319 loc_pop(&conf->loc); 1320 if (rc) { 1321 return rc; 1322 } 1323 } 1324 return 0; 1325 } 1326 1327 static void qemu_disable_default_devices(void) 1328 { 1329 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1330 1331 default_driver_check_json(); 1332 qemu_opts_foreach(qemu_find_opts("device"), 1333 default_driver_check, NULL, NULL); 1334 qemu_opts_foreach(qemu_find_opts("global"), 1335 default_driver_check, NULL, NULL); 1336 1337 if (!vga_model && !default_vga) { 1338 vga_interface_type = VGA_DEVICE; 1339 vga_interface_created = true; 1340 } 1341 if (!has_defaults || machine_class->no_serial) { 1342 default_serial = 0; 1343 } 1344 if (!has_defaults || machine_class->no_parallel) { 1345 default_parallel = 0; 1346 } 1347 if (!has_defaults || machine_class->no_floppy) { 1348 default_floppy = 0; 1349 } 1350 if (!has_defaults || machine_class->no_cdrom) { 1351 default_cdrom = 0; 1352 } 1353 if (!has_defaults || machine_class->no_sdcard) { 1354 default_sdcard = 0; 1355 } 1356 if (!has_defaults) { 1357 default_audio = 0; 1358 default_monitor = 0; 1359 default_net = 0; 1360 default_vga = 0; 1361 } else { 1362 if (default_net && machine_class->default_nic && 1363 !module_object_class_by_name(machine_class->default_nic)) { 1364 warn_report("Default NIC '%s' is not available in this binary", 1365 machine_class->default_nic); 1366 default_net = 0; 1367 } 1368 } 1369 } 1370 1371 static void qemu_setup_display(void) 1372 { 1373 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { 1374 if (!qemu_display_find_default(&dpy)) { 1375 dpy.type = DISPLAY_TYPE_NONE; 1376 #if defined(CONFIG_VNC) 1377 vnc_parse("localhost:0,to=99,id=default"); 1378 display_remote++; 1379 #endif 1380 } 1381 } 1382 if (dpy.type == DISPLAY_TYPE_DEFAULT) { 1383 dpy.type = DISPLAY_TYPE_NONE; 1384 } 1385 1386 qemu_display_early_init(&dpy); 1387 } 1388 1389 static void qemu_create_default_devices(void) 1390 { 1391 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1392 const char *vc = qemu_display_get_vc(&dpy); 1393 1394 if (is_daemonized()) { 1395 /* According to documentation and historically, -nographic redirects 1396 * serial port, parallel port and monitor to stdio, which does not work 1397 * with -daemonize. We can redirect these to null instead, but since 1398 * -nographic is legacy, let's just error out. 1399 * We disallow -nographic only if all other ports are not redirected 1400 * explicitly, to not break existing legacy setups which uses 1401 * -nographic _and_ redirects all ports explicitly - this is valid 1402 * usage, -nographic is just a no-op in this case. 1403 */ 1404 if (nographic 1405 && (default_parallel || default_serial || default_monitor)) { 1406 error_report("-nographic cannot be used with -daemonize"); 1407 exit(1); 1408 } 1409 } 1410 1411 if (nographic) { 1412 if (default_parallel) { 1413 add_device_config(DEV_PARALLEL, "null"); 1414 } 1415 if (default_serial && default_monitor) { 1416 add_device_config(DEV_SERIAL, "mon:stdio"); 1417 } else { 1418 if (default_serial) { 1419 add_device_config(DEV_SERIAL, "stdio"); 1420 } 1421 if (default_monitor) { 1422 monitor_parse("stdio", "readline", false); 1423 } 1424 } 1425 } else { 1426 if (default_serial) { 1427 add_device_config(DEV_SERIAL, vc ?: "null"); 1428 } 1429 if (default_parallel) { 1430 add_device_config(DEV_PARALLEL, vc ?: "null"); 1431 } 1432 if (default_monitor && vc) { 1433 monitor_parse(vc, "readline", false); 1434 } 1435 } 1436 1437 if (default_net) { 1438 QemuOptsList *net = qemu_find_opts("net"); 1439 qemu_opts_parse(net, "nic", true, &error_abort); 1440 #ifdef CONFIG_SLIRP 1441 qemu_opts_parse(net, "user", true, &error_abort); 1442 #endif 1443 } 1444 1445 /* If no default VGA is requested, the default is "none". */ 1446 if (default_vga) { 1447 vga_model = get_default_vga_model(machine_class); 1448 } 1449 if (vga_model) { 1450 select_vgahw(machine_class, vga_model); 1451 } 1452 } 1453 1454 static int serial_parse(const char *devname) 1455 { 1456 int index = num_serial_hds; 1457 1458 serial_hds = g_renew(Chardev *, serial_hds, index + 1); 1459 1460 if (strcmp(devname, "none") == 0) { 1461 /* Don't allocate a serial device for this index */ 1462 serial_hds[index] = NULL; 1463 } else { 1464 char label[32]; 1465 snprintf(label, sizeof(label), "serial%d", index); 1466 1467 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1468 if (!serial_hds[index]) { 1469 error_report("could not connect serial device" 1470 " to character backend '%s'", devname); 1471 return -1; 1472 } 1473 } 1474 num_serial_hds++; 1475 return 0; 1476 } 1477 1478 Chardev *serial_hd(int i) 1479 { 1480 assert(i >= 0); 1481 if (i < num_serial_hds) { 1482 return serial_hds[i]; 1483 } 1484 return NULL; 1485 } 1486 1487 static int parallel_parse(const char *devname) 1488 { 1489 static int index = 0; 1490 char label[32]; 1491 1492 if (strcmp(devname, "none") == 0) 1493 return 0; 1494 if (index == MAX_PARALLEL_PORTS) { 1495 error_report("too many parallel ports"); 1496 exit(1); 1497 } 1498 snprintf(label, sizeof(label), "parallel%d", index); 1499 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1500 if (!parallel_hds[index]) { 1501 error_report("could not connect parallel device" 1502 " to character backend '%s'", devname); 1503 return -1; 1504 } 1505 index++; 1506 return 0; 1507 } 1508 1509 static int debugcon_parse(const char *devname) 1510 { 1511 QemuOpts *opts; 1512 1513 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { 1514 error_report("invalid character backend '%s'", devname); 1515 exit(1); 1516 } 1517 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); 1518 if (!opts) { 1519 error_report("already have a debugcon device"); 1520 exit(1); 1521 } 1522 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); 1523 qemu_opt_set(opts, "chardev", "debugcon", &error_abort); 1524 return 0; 1525 } 1526 1527 static gint machine_class_cmp(gconstpointer a, gconstpointer b) 1528 { 1529 const MachineClass *mc1 = a, *mc2 = b; 1530 int res; 1531 1532 if (mc1->family == NULL) { 1533 if (mc2->family == NULL) { 1534 /* Compare standalone machine types against each other; they sort 1535 * in increasing order. 1536 */ 1537 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), 1538 object_class_get_name(OBJECT_CLASS(mc2))); 1539 } 1540 1541 /* Standalone machine types sort after families. */ 1542 return 1; 1543 } 1544 1545 if (mc2->family == NULL) { 1546 /* Families sort before standalone machine types. */ 1547 return -1; 1548 } 1549 1550 /* Families sort between each other alphabetically increasingly. */ 1551 res = strcmp(mc1->family, mc2->family); 1552 if (res != 0) { 1553 return res; 1554 } 1555 1556 /* Within the same family, machine types sort in decreasing order. */ 1557 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), 1558 object_class_get_name(OBJECT_CLASS(mc1))); 1559 } 1560 1561 static void machine_help_func(const QDict *qdict) 1562 { 1563 g_autoptr(GSList) machines = NULL; 1564 GSList *el; 1565 const char *type = qdict_get_try_str(qdict, "type"); 1566 1567 machines = object_class_get_list(TYPE_MACHINE, false); 1568 if (type) { 1569 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); 1570 if (machine_class) { 1571 type_print_class_properties(object_class_get_name(machine_class)); 1572 return; 1573 } 1574 } 1575 1576 printf("Supported machines are:\n"); 1577 machines = g_slist_sort(machines, machine_class_cmp); 1578 for (el = machines; el; el = el->next) { 1579 MachineClass *mc = el->data; 1580 if (mc->alias) { 1581 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); 1582 } 1583 printf("%-20s %s%s%s\n", mc->name, mc->desc, 1584 mc->is_default ? " (default)" : "", 1585 mc->deprecation_reason ? " (deprecated)" : ""); 1586 } 1587 } 1588 1589 static void 1590 machine_merge_property(const char *propname, QDict *prop, Error **errp) 1591 { 1592 QDict *opts; 1593 1594 opts = qdict_new(); 1595 /* Preserve the caller's reference to prop. */ 1596 qobject_ref(prop); 1597 qdict_put(opts, propname, prop); 1598 keyval_merge(machine_opts_dict, opts, errp); 1599 qobject_unref(opts); 1600 } 1601 1602 static void 1603 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, 1604 const char *arg) 1605 { 1606 QDict *prop = NULL; 1607 bool help = false; 1608 1609 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); 1610 if (help) { 1611 qemu_opts_print_help(opts_list, true); 1612 exit(0); 1613 } 1614 machine_merge_property(propname, prop, &error_fatal); 1615 qobject_unref(prop); 1616 } 1617 1618 static const char *pid_file; 1619 struct UnlinkPidfileNotifier { 1620 Notifier notifier; 1621 char *pid_file_realpath; 1622 }; 1623 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; 1624 1625 static void qemu_unlink_pidfile(Notifier *n, void *data) 1626 { 1627 struct UnlinkPidfileNotifier *upn; 1628 1629 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); 1630 unlink(upn->pid_file_realpath); 1631 } 1632 1633 static const QEMUOption *lookup_opt(int argc, char **argv, 1634 const char **poptarg, int *poptind) 1635 { 1636 const QEMUOption *popt; 1637 int optind = *poptind; 1638 char *r = argv[optind]; 1639 const char *optarg; 1640 1641 loc_set_cmdline(argv, optind, 1); 1642 optind++; 1643 /* Treat --foo the same as -foo. */ 1644 if (r[1] == '-') 1645 r++; 1646 popt = qemu_options; 1647 for(;;) { 1648 if (!popt->name) { 1649 error_report("invalid option"); 1650 exit(1); 1651 } 1652 if (!strcmp(popt->name, r + 1)) 1653 break; 1654 popt++; 1655 } 1656 if (popt->flags & HAS_ARG) { 1657 if (optind >= argc) { 1658 error_report("requires an argument"); 1659 exit(1); 1660 } 1661 optarg = argv[optind++]; 1662 loc_set_cmdline(argv, optind - 2, 2); 1663 } else { 1664 optarg = NULL; 1665 } 1666 1667 *poptarg = optarg; 1668 *poptind = optind; 1669 1670 return popt; 1671 } 1672 1673 static MachineClass *select_machine(QDict *qdict, Error **errp) 1674 { 1675 ERRP_GUARD(); 1676 const char *machine_type = qdict_get_try_str(qdict, "type"); 1677 g_autoptr(GSList) machines = object_class_get_list(TYPE_MACHINE, false); 1678 MachineClass *machine_class = NULL; 1679 1680 if (machine_type) { 1681 machine_class = find_machine(machine_type, machines); 1682 if (!machine_class) { 1683 error_setg(errp, "unsupported machine type: \"%s\"", machine_type); 1684 } 1685 qdict_del(qdict, "type"); 1686 } else { 1687 machine_class = find_default_machine(machines); 1688 if (!machine_class) { 1689 error_setg(errp, "No machine specified, and there is no default"); 1690 } 1691 } 1692 1693 if (!machine_class) { 1694 error_append_hint(errp, 1695 "Use -machine help to list supported machines\n"); 1696 } 1697 return machine_class; 1698 } 1699 1700 static int object_parse_property_opt(Object *obj, 1701 const char *name, const char *value, 1702 const char *skip, Error **errp) 1703 { 1704 if (g_str_equal(name, skip)) { 1705 return 0; 1706 } 1707 1708 if (!object_property_parse(obj, name, value, errp)) { 1709 return -1; 1710 } 1711 1712 return 0; 1713 } 1714 1715 /* *Non*recursively replace underscores with dashes in QDict keys. */ 1716 static void keyval_dashify(QDict *qdict, Error **errp) 1717 { 1718 const QDictEntry *ent, *next; 1719 char *p; 1720 1721 for (ent = qdict_first(qdict); ent; ent = next) { 1722 g_autofree char *new_key = NULL; 1723 1724 next = qdict_next(qdict, ent); 1725 if (!strchr(ent->key, '_')) { 1726 continue; 1727 } 1728 new_key = g_strdup(ent->key); 1729 for (p = new_key; *p; p++) { 1730 if (*p == '_') { 1731 *p = '-'; 1732 } 1733 } 1734 if (qdict_haskey(qdict, new_key)) { 1735 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); 1736 return; 1737 } 1738 qobject_ref(ent->value); 1739 qdict_put_obj(qdict, new_key, ent->value); 1740 qdict_del(qdict, ent->key); 1741 } 1742 } 1743 1744 static void qemu_apply_legacy_machine_options(QDict *qdict) 1745 { 1746 const char *value; 1747 QObject *prop; 1748 1749 keyval_dashify(qdict, &error_fatal); 1750 1751 /* Legacy options do not correspond to MachineState properties. */ 1752 value = qdict_get_try_str(qdict, "accel"); 1753 if (value) { 1754 accelerators = g_strdup(value); 1755 qdict_del(qdict, "accel"); 1756 } 1757 1758 value = qdict_get_try_str(qdict, "igd-passthru"); 1759 if (value) { 1760 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, 1761 false); 1762 qdict_del(qdict, "igd-passthru"); 1763 } 1764 1765 value = qdict_get_try_str(qdict, "kvm-shadow-mem"); 1766 if (value) { 1767 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, 1768 false); 1769 qdict_del(qdict, "kvm-shadow-mem"); 1770 } 1771 1772 value = qdict_get_try_str(qdict, "kernel-irqchip"); 1773 if (value) { 1774 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, 1775 false); 1776 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, 1777 false); 1778 qdict_del(qdict, "kernel-irqchip"); 1779 } 1780 1781 value = qdict_get_try_str(qdict, "memory-backend"); 1782 if (value) { 1783 if (mem_path) { 1784 error_report("'-mem-path' can't be used together with" 1785 "'-machine memory-backend'"); 1786 exit(EXIT_FAILURE); 1787 } 1788 1789 /* Resolved later. */ 1790 ram_memdev_id = g_strdup(value); 1791 qdict_del(qdict, "memory-backend"); 1792 } 1793 1794 prop = qdict_get(qdict, "memory"); 1795 if (prop) { 1796 have_custom_ram_size = 1797 qobject_type(prop) == QTYPE_QDICT && 1798 qdict_haskey(qobject_to(QDict, prop), "size"); 1799 } 1800 } 1801 1802 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) 1803 { 1804 ObjectOption *opt, *next; 1805 1806 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { 1807 const char *type = ObjectType_str(opt->opts->qom_type); 1808 if (type_opt_predicate(type)) { 1809 user_creatable_add_qapi(opt->opts, &error_fatal); 1810 qapi_free_ObjectOptions(opt->opts); 1811 QTAILQ_REMOVE(&object_opts, opt, next); 1812 g_free(opt); 1813 } 1814 } 1815 } 1816 1817 static void object_option_add_visitor(Visitor *v) 1818 { 1819 ObjectOption *opt = g_new0(ObjectOption, 1); 1820 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); 1821 QTAILQ_INSERT_TAIL(&object_opts, opt, next); 1822 } 1823 1824 static void object_option_parse(const char *str) 1825 { 1826 QemuOpts *opts; 1827 const char *type; 1828 Visitor *v; 1829 1830 if (str[0] == '{') { 1831 QObject *obj = qobject_from_json(str, &error_fatal); 1832 1833 v = qobject_input_visitor_new(obj); 1834 qobject_unref(obj); 1835 } else { 1836 opts = qemu_opts_parse_noisily(qemu_find_opts("object"), 1837 str, true); 1838 if (!opts) { 1839 exit(1); 1840 } 1841 1842 type = qemu_opt_get(opts, "qom-type"); 1843 if (!type) { 1844 error_report(QERR_MISSING_PARAMETER, "qom-type"); 1845 exit(1); 1846 } 1847 if (user_creatable_print_help(type, opts)) { 1848 exit(0); 1849 } 1850 1851 v = opts_visitor_new(opts); 1852 } 1853 1854 object_option_add_visitor(v); 1855 visit_free(v); 1856 } 1857 1858 /* 1859 * Very early object creation, before the sandbox options have been activated. 1860 */ 1861 static bool object_create_pre_sandbox(const char *type) 1862 { 1863 /* 1864 * Objects should in general not get initialized "too early" without 1865 * a reason. If you add one, state the reason in a comment! 1866 */ 1867 1868 /* 1869 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU 1870 * affinity of threads. 1871 */ 1872 if (g_str_equal(type, "thread-context")) { 1873 return true; 1874 } 1875 1876 return false; 1877 } 1878 1879 /* 1880 * Initial object creation happens before all other 1881 * QEMU data types are created. The majority of objects 1882 * can be created at this point. The rng-egd object 1883 * cannot be created here, as it depends on the chardev 1884 * already existing. 1885 */ 1886 static bool object_create_early(const char *type) 1887 { 1888 /* 1889 * Objects should not be made "delayed" without a reason. If you 1890 * add one, state the reason in a comment! 1891 */ 1892 1893 /* Reason: already created. */ 1894 if (object_create_pre_sandbox(type)) { 1895 return false; 1896 } 1897 1898 /* Reason: property "chardev" */ 1899 if (g_str_equal(type, "rng-egd") || 1900 g_str_equal(type, "qtest")) { 1901 return false; 1902 } 1903 1904 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) 1905 /* Reason: cryptodev-vhost-user property "chardev" */ 1906 if (g_str_equal(type, "cryptodev-vhost-user")) { 1907 return false; 1908 } 1909 #endif 1910 1911 /* Reason: vhost-user-blk-server property "node-name" */ 1912 if (g_str_equal(type, "vhost-user-blk-server")) { 1913 return false; 1914 } 1915 /* 1916 * Reason: filter-* property "netdev" etc. 1917 */ 1918 if (g_str_equal(type, "filter-buffer") || 1919 g_str_equal(type, "filter-dump") || 1920 g_str_equal(type, "filter-mirror") || 1921 g_str_equal(type, "filter-redirector") || 1922 g_str_equal(type, "colo-compare") || 1923 g_str_equal(type, "filter-rewriter") || 1924 g_str_equal(type, "filter-replay")) { 1925 return false; 1926 } 1927 1928 /* 1929 * Allocation of large amounts of memory may delay 1930 * chardev initialization for too long, and trigger timeouts 1931 * on software that waits for a monitor socket to be created 1932 */ 1933 if (g_str_has_prefix(type, "memory-backend-")) { 1934 return false; 1935 } 1936 1937 return true; 1938 } 1939 1940 static void qemu_apply_machine_options(QDict *qdict) 1941 { 1942 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); 1943 1944 if (semihosting_enabled(false) && !semihosting_get_argc()) { 1945 /* fall back to the -kernel/-append */ 1946 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); 1947 } 1948 1949 if (current_machine->smp.cpus > 1) { 1950 replay_add_blocker("multiple CPUs"); 1951 } 1952 } 1953 1954 static void qemu_create_early_backends(void) 1955 { 1956 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1957 #if defined(CONFIG_SDL) 1958 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); 1959 #else 1960 const bool use_sdl = false; 1961 #endif 1962 #if defined(CONFIG_GTK) 1963 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); 1964 #else 1965 const bool use_gtk = false; 1966 #endif 1967 1968 if (dpy.has_window_close && !use_gtk && !use_sdl) { 1969 error_report("window-close is only valid for GTK and SDL, " 1970 "ignoring option"); 1971 } 1972 1973 qemu_console_early_init(); 1974 1975 if (dpy.has_gl && dpy.gl != DISPLAY_GL_MODE_OFF && display_opengl == 0) { 1976 #if defined(CONFIG_OPENGL) 1977 error_report("OpenGL is not supported by display backend '%s'", 1978 DisplayType_str(dpy.type)); 1979 #else 1980 error_report("OpenGL support was not enabled in this build of QEMU"); 1981 #endif 1982 exit(1); 1983 } 1984 1985 object_option_foreach_add(object_create_early); 1986 1987 /* spice needs the timers to be initialized by this point */ 1988 /* spice must initialize before audio as it changes the default audiodev */ 1989 /* spice must initialize before chardevs (for spicevmc and spiceport) */ 1990 qemu_spice.init(); 1991 1992 qemu_opts_foreach(qemu_find_opts("chardev"), 1993 chardev_init_func, NULL, &error_fatal); 1994 1995 #ifdef CONFIG_VIRTFS 1996 qemu_opts_foreach(qemu_find_opts("fsdev"), 1997 fsdev_init_func, NULL, &error_fatal); 1998 #endif 1999 2000 /* 2001 * Note: we need to create audio and block backends before 2002 * setting machine properties, so they can be referred to. 2003 */ 2004 configure_blockdev(&bdo_queue, machine_class, snapshot); 2005 audio_init_audiodevs(); 2006 if (default_audio) { 2007 audio_create_default_audiodevs(); 2008 } 2009 } 2010 2011 2012 /* 2013 * The remainder of object creation happens after the 2014 * creation of chardev, fsdev, net clients and device data types. 2015 */ 2016 static bool object_create_late(const char *type) 2017 { 2018 return !object_create_early(type) && !object_create_pre_sandbox(type); 2019 } 2020 2021 static void qemu_create_late_backends(void) 2022 { 2023 if (qtest_chrdev) { 2024 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); 2025 } 2026 2027 net_init_clients(); 2028 2029 object_option_foreach_add(object_create_late); 2030 2031 /* 2032 * Wait for any outstanding memory prealloc from created memory 2033 * backends to complete. 2034 */ 2035 if (!qemu_finish_async_prealloc_mem(&error_fatal)) { 2036 exit(1); 2037 } 2038 2039 if (tpm_init() < 0) { 2040 exit(1); 2041 } 2042 2043 qemu_opts_foreach(qemu_find_opts("mon"), 2044 mon_init_func, NULL, &error_fatal); 2045 2046 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) 2047 exit(1); 2048 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) 2049 exit(1); 2050 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0) 2051 exit(1); 2052 2053 /* now chardevs have been created we may have semihosting to connect */ 2054 qemu_semihosting_chardev_init(); 2055 } 2056 2057 static void qemu_resolve_machine_memdev(void) 2058 { 2059 if (ram_memdev_id) { 2060 Object *backend; 2061 ram_addr_t backend_size; 2062 2063 backend = object_resolve_path_type(ram_memdev_id, 2064 TYPE_MEMORY_BACKEND, NULL); 2065 if (!backend) { 2066 error_report("Memory backend '%s' not found", ram_memdev_id); 2067 exit(EXIT_FAILURE); 2068 } 2069 if (!have_custom_ram_size) { 2070 backend_size = object_property_get_uint(backend, "size", &error_abort); 2071 current_machine->ram_size = backend_size; 2072 } 2073 object_property_set_link(OBJECT(current_machine), 2074 "memory-backend", backend, &error_fatal); 2075 } 2076 } 2077 2078 static void parse_memory_options(void) 2079 { 2080 QemuOpts *opts = qemu_find_opts_singleton("memory"); 2081 QDict *dict, *prop; 2082 const char *mem_str; 2083 Location loc; 2084 2085 loc_push_none(&loc); 2086 qemu_opts_loc_restore(opts); 2087 2088 prop = qdict_new(); 2089 2090 if (qemu_opt_get_size(opts, "size", 0) != 0) { 2091 /* Fix up legacy suffix-less format */ 2092 mem_str = qemu_opt_get(opts, "size"); 2093 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { 2094 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); 2095 qdict_put_str(prop, "size", mib_str); 2096 } else { 2097 qdict_put_str(prop, "size", mem_str); 2098 } 2099 } 2100 2101 if (qemu_opt_get(opts, "maxmem")) { 2102 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); 2103 } 2104 if (qemu_opt_get(opts, "slots")) { 2105 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); 2106 } 2107 2108 dict = qdict_new(); 2109 qdict_put(dict, "memory", prop); 2110 keyval_merge(machine_opts_dict, dict, &error_fatal); 2111 qobject_unref(dict); 2112 loc_pop(&loc); 2113 } 2114 2115 static void qemu_create_machine(QDict *qdict) 2116 { 2117 MachineClass *machine_class = select_machine(qdict, &error_fatal); 2118 object_set_machine_compat_props(machine_class->compat_props); 2119 2120 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); 2121 object_property_add_child(object_get_root(), "machine", 2122 OBJECT(current_machine)); 2123 object_property_add_child(container_get(OBJECT(current_machine), 2124 "/unattached"), 2125 "sysbus", OBJECT(sysbus_get_default())); 2126 2127 if (machine_class->minimum_page_bits) { 2128 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { 2129 /* This would be a board error: specifying a minimum smaller than 2130 * a target's compile-time fixed setting. 2131 */ 2132 g_assert_not_reached(); 2133 } 2134 } 2135 2136 cpu_exec_init_all(); 2137 2138 if (machine_class->hw_version) { 2139 qemu_set_hw_version(machine_class->hw_version); 2140 } 2141 2142 /* 2143 * Get the default machine options from the machine if it is not already 2144 * specified either by the configuration file or by the command line. 2145 */ 2146 if (machine_class->default_machine_opts) { 2147 QDict *default_opts = 2148 keyval_parse(machine_class->default_machine_opts, NULL, NULL, 2149 &error_abort); 2150 qemu_apply_legacy_machine_options(default_opts); 2151 object_set_properties_from_keyval(OBJECT(current_machine), default_opts, 2152 false, &error_abort); 2153 qobject_unref(default_opts); 2154 } 2155 } 2156 2157 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) 2158 { 2159 GlobalProperty *g; 2160 2161 g = g_malloc0(sizeof(*g)); 2162 g->driver = qemu_opt_get(opts, "driver"); 2163 g->property = qemu_opt_get(opts, "property"); 2164 g->value = qemu_opt_get(opts, "value"); 2165 qdev_prop_register_global(g); 2166 return 0; 2167 } 2168 2169 /* 2170 * Return whether configuration group @group is stored in QemuOpts, or 2171 * recorded as one or more QDicts by qemu_record_config_group. 2172 */ 2173 static bool is_qemuopts_group(const char *group) 2174 { 2175 if (g_str_equal(group, "object") || 2176 g_str_equal(group, "audiodev") || 2177 g_str_equal(group, "machine") || 2178 g_str_equal(group, "smp-opts") || 2179 g_str_equal(group, "boot-opts")) { 2180 return false; 2181 } 2182 return true; 2183 } 2184 2185 static void qemu_record_config_group(const char *group, QDict *dict, 2186 bool from_json, Error **errp) 2187 { 2188 if (g_str_equal(group, "object")) { 2189 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2190 object_option_add_visitor(v); 2191 visit_free(v); 2192 2193 } else if (g_str_equal(group, "audiodev")) { 2194 Audiodev *dev = NULL; 2195 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2196 if (visit_type_Audiodev(v, NULL, &dev, errp)) { 2197 audio_define(dev); 2198 } 2199 visit_free(v); 2200 2201 } else if (g_str_equal(group, "machine")) { 2202 /* 2203 * Cannot merge string-valued and type-safe dictionaries, so JSON 2204 * is not accepted yet for -M. 2205 */ 2206 assert(!from_json); 2207 keyval_merge(machine_opts_dict, dict, errp); 2208 } else if (g_str_equal(group, "smp-opts")) { 2209 machine_merge_property("smp", dict, &error_fatal); 2210 } else if (g_str_equal(group, "boot-opts")) { 2211 machine_merge_property("boot", dict, &error_fatal); 2212 } else { 2213 abort(); 2214 } 2215 } 2216 2217 /* 2218 * Parse non-QemuOpts config file groups, pass the rest to 2219 * qemu_config_do_parse. 2220 */ 2221 static void qemu_parse_config_group(const char *group, QDict *qdict, 2222 void *opaque, Error **errp) 2223 { 2224 QObject *crumpled; 2225 if (is_qemuopts_group(group)) { 2226 qemu_config_do_parse(group, qdict, opaque, errp); 2227 return; 2228 } 2229 2230 crumpled = qdict_crumple(qdict, errp); 2231 if (!crumpled) { 2232 return; 2233 } 2234 switch (qobject_type(crumpled)) { 2235 case QTYPE_QDICT: 2236 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); 2237 break; 2238 case QTYPE_QLIST: 2239 error_setg(errp, "Lists cannot be at top level of a configuration section"); 2240 break; 2241 default: 2242 g_assert_not_reached(); 2243 } 2244 qobject_unref(crumpled); 2245 } 2246 2247 static void qemu_read_default_config_file(Error **errp) 2248 { 2249 ERRP_GUARD(); 2250 int ret; 2251 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); 2252 2253 ret = qemu_read_config_file(file, qemu_parse_config_group, errp); 2254 if (ret < 0) { 2255 if (ret == -ENOENT) { 2256 error_free(*errp); 2257 *errp = NULL; 2258 } 2259 } 2260 } 2261 2262 static void qemu_set_option(const char *str, Error **errp) 2263 { 2264 char group[64], id[64], arg[64]; 2265 QemuOptsList *list; 2266 QemuOpts *opts; 2267 int rc, offset; 2268 2269 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); 2270 if (rc < 3 || str[offset] != '=') { 2271 error_setg(errp, "can't parse: \"%s\"", str); 2272 return; 2273 } 2274 2275 if (!is_qemuopts_group(group)) { 2276 error_setg(errp, "-set is not supported with %s", group); 2277 } else { 2278 list = qemu_find_opts_err(group, errp); 2279 if (list) { 2280 opts = qemu_opts_find(list, id); 2281 if (!opts) { 2282 error_setg(errp, "there is no %s \"%s\" defined", group, id); 2283 return; 2284 } 2285 qemu_opt_set(opts, arg, str + offset + 1, errp); 2286 } 2287 } 2288 } 2289 2290 static void user_register_global_props(void) 2291 { 2292 qemu_opts_foreach(qemu_find_opts("global"), 2293 global_init_func, NULL, NULL); 2294 } 2295 2296 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) 2297 { 2298 return !icount_configure(opts, errp); 2299 } 2300 2301 static int accelerator_set_property(void *opaque, 2302 const char *name, const char *value, 2303 Error **errp) 2304 { 2305 return object_parse_property_opt(opaque, name, value, "accel", errp); 2306 } 2307 2308 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) 2309 { 2310 bool *p_init_failed = opaque; 2311 const char *acc = qemu_opt_get(opts, "accel"); 2312 AccelClass *ac = accel_find(acc); 2313 AccelState *accel; 2314 int ret; 2315 bool qtest_with_kvm; 2316 2317 if (!acc) { 2318 error_setg(errp, QERR_MISSING_PARAMETER, "accel"); 2319 goto bad; 2320 } 2321 2322 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; 2323 2324 if (!ac) { 2325 if (!qtest_with_kvm) { 2326 error_report("invalid accelerator %s", acc); 2327 } 2328 goto bad; 2329 } 2330 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); 2331 object_apply_compat_props(OBJECT(accel)); 2332 qemu_opt_foreach(opts, accelerator_set_property, 2333 accel, 2334 &error_fatal); 2335 2336 ret = accel_init_machine(accel, current_machine); 2337 if (ret < 0) { 2338 if (!qtest_with_kvm || ret != -ENOENT) { 2339 error_report("failed to initialize %s: %s", acc, strerror(-ret)); 2340 } 2341 goto bad; 2342 } 2343 2344 return 1; 2345 2346 bad: 2347 *p_init_failed = true; 2348 return 0; 2349 } 2350 2351 static void configure_accelerators(const char *progname) 2352 { 2353 bool init_failed = false; 2354 2355 qemu_opts_foreach(qemu_find_opts("icount"), 2356 do_configure_icount, NULL, &error_fatal); 2357 2358 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { 2359 char **accel_list, **tmp; 2360 2361 if (accelerators == NULL) { 2362 /* Select the default accelerator */ 2363 bool have_tcg = accel_find("tcg"); 2364 bool have_kvm = accel_find("kvm"); 2365 2366 if (have_tcg && have_kvm) { 2367 if (g_str_has_suffix(progname, "kvm")) { 2368 /* If the program name ends with "kvm", we prefer KVM */ 2369 accelerators = "kvm:tcg"; 2370 } else { 2371 accelerators = "tcg:kvm"; 2372 } 2373 } else if (have_kvm) { 2374 accelerators = "kvm"; 2375 } else if (have_tcg) { 2376 accelerators = "tcg"; 2377 } else { 2378 error_report("No accelerator selected and" 2379 " no default accelerator available"); 2380 exit(1); 2381 } 2382 } 2383 accel_list = g_strsplit(accelerators, ":", 0); 2384 2385 for (tmp = accel_list; *tmp; tmp++) { 2386 /* 2387 * Filter invalid accelerators here, to prevent obscenities 2388 * such as "-machine accel=tcg,,thread=single". 2389 */ 2390 if (accel_find(*tmp)) { 2391 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); 2392 } else { 2393 init_failed = true; 2394 error_report("invalid accelerator %s", *tmp); 2395 } 2396 } 2397 g_strfreev(accel_list); 2398 } else { 2399 if (accelerators != NULL) { 2400 error_report("The -accel and \"-machine accel=\" options are incompatible"); 2401 exit(1); 2402 } 2403 } 2404 2405 if (!qemu_opts_foreach(qemu_find_opts("accel"), 2406 do_configure_accelerator, &init_failed, &error_fatal)) { 2407 if (!init_failed) { 2408 error_report("no accelerator found"); 2409 } 2410 exit(1); 2411 } 2412 2413 if (init_failed && !qtest_chrdev) { 2414 error_report("falling back to %s", current_accel_name()); 2415 } 2416 2417 if (icount_enabled() && !tcg_enabled()) { 2418 error_report("-icount is not allowed with hardware virtualization"); 2419 exit(1); 2420 } 2421 } 2422 2423 static void qemu_validate_options(const QDict *machine_opts) 2424 { 2425 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); 2426 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); 2427 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); 2428 2429 if (kernel_filename == NULL) { 2430 if (kernel_cmdline != NULL) { 2431 error_report("-append only allowed with -kernel option"); 2432 exit(1); 2433 } 2434 2435 if (initrd_filename != NULL) { 2436 error_report("-initrd only allowed with -kernel option"); 2437 exit(1); 2438 } 2439 } 2440 2441 if (loadvm && incoming) { 2442 error_report("'incoming' and 'loadvm' options are mutually exclusive"); 2443 exit(EXIT_FAILURE); 2444 } 2445 if (loadvm && preconfig_requested) { 2446 error_report("'preconfig' and 'loadvm' options are " 2447 "mutually exclusive"); 2448 exit(EXIT_FAILURE); 2449 } 2450 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { 2451 error_report("'preconfig' supports '-incoming defer' only"); 2452 exit(EXIT_FAILURE); 2453 } 2454 2455 #ifdef CONFIG_CURSES 2456 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { 2457 error_report("curses display cannot be used with -daemonize"); 2458 exit(1); 2459 } 2460 #endif 2461 } 2462 2463 static void qemu_process_sugar_options(void) 2464 { 2465 if (mem_prealloc) { 2466 QObject *smp = qdict_get(machine_opts_dict, "smp"); 2467 if (smp && qobject_type(smp) == QTYPE_QDICT) { 2468 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); 2469 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { 2470 const char *val = qstring_get_str(qobject_to(QString, cpus)); 2471 object_register_sugar_prop("memory-backend", "prealloc-threads", 2472 val, false); 2473 } 2474 } 2475 object_register_sugar_prop("memory-backend", "prealloc", "on", false); 2476 } 2477 } 2478 2479 /* -action processing */ 2480 2481 /* 2482 * Process all the -action parameters parsed from cmdline. 2483 */ 2484 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) 2485 { 2486 Error *local_err = NULL; 2487 QDict *qdict = qemu_opts_to_qdict(opts, NULL); 2488 QObject *ret = NULL; 2489 qmp_marshal_set_action(qdict, &ret, &local_err); 2490 qobject_unref(ret); 2491 qobject_unref(qdict); 2492 if (local_err) { 2493 error_propagate(errp, local_err); 2494 return 1; 2495 } 2496 return 0; 2497 } 2498 2499 static void qemu_process_early_options(void) 2500 { 2501 qemu_opts_foreach(qemu_find_opts("name"), 2502 parse_name, NULL, &error_fatal); 2503 2504 object_option_foreach_add(object_create_pre_sandbox); 2505 2506 #ifdef CONFIG_SECCOMP 2507 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); 2508 if (olist) { 2509 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); 2510 } 2511 #endif 2512 2513 if (qemu_opts_foreach(qemu_find_opts("action"), 2514 process_runstate_actions, NULL, &error_fatal)) { 2515 exit(1); 2516 } 2517 2518 #ifndef _WIN32 2519 qemu_opts_foreach(qemu_find_opts("add-fd"), 2520 parse_add_fd, NULL, &error_fatal); 2521 2522 qemu_opts_foreach(qemu_find_opts("add-fd"), 2523 cleanup_add_fd, NULL, &error_fatal); 2524 #endif 2525 2526 /* Open the logfile at this point and set the log mask if necessary. */ 2527 { 2528 int mask = 0; 2529 if (log_mask) { 2530 mask = qemu_str_to_log_mask(log_mask); 2531 if (!mask) { 2532 qemu_print_log_usage(stdout); 2533 exit(1); 2534 } 2535 } 2536 qemu_set_log_filename_flags(log_file, mask, &error_fatal); 2537 } 2538 2539 qemu_add_default_firmwarepath(); 2540 } 2541 2542 static void qemu_process_help_options(void) 2543 { 2544 /* 2545 * Check for -cpu help and -device help before we call select_machine(), 2546 * which will return an error if the architecture has no default machine 2547 * type and the user did not specify one, so that the user doesn't need 2548 * to say '-cpu help -machine something'. 2549 */ 2550 if (cpu_option && is_help_option(cpu_option)) { 2551 list_cpus(); 2552 exit(0); 2553 } 2554 2555 if (qemu_opts_foreach(qemu_find_opts("device"), 2556 device_help_func, NULL, NULL)) { 2557 exit(0); 2558 } 2559 2560 /* -L help lists the data directories and exits. */ 2561 if (list_data_dirs) { 2562 qemu_list_data_dirs(); 2563 exit(0); 2564 } 2565 } 2566 2567 static void qemu_maybe_daemonize(const char *pid_file) 2568 { 2569 Error *err = NULL; 2570 2571 os_daemonize(); 2572 rcu_disable_atfork(); 2573 2574 if (pid_file) { 2575 char *pid_file_realpath = NULL; 2576 2577 if (!qemu_write_pidfile(pid_file, &err)) { 2578 error_reportf_err(err, "cannot create PID file: "); 2579 exit(1); 2580 } 2581 2582 pid_file_realpath = g_malloc0(PATH_MAX); 2583 if (!realpath(pid_file, pid_file_realpath)) { 2584 if (errno != ENOENT) { 2585 warn_report("not removing PID file on exit: cannot resolve PID " 2586 "file path: %s: %s", pid_file, strerror(errno)); 2587 } 2588 return; 2589 } 2590 2591 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { 2592 .notifier = { 2593 .notify = qemu_unlink_pidfile, 2594 }, 2595 .pid_file_realpath = pid_file_realpath, 2596 }; 2597 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); 2598 } 2599 } 2600 2601 static void qemu_init_displays(void) 2602 { 2603 DisplayState *ds; 2604 2605 /* init local displays */ 2606 ds = init_displaystate(); 2607 qemu_display_init(ds, &dpy); 2608 2609 /* must be after terminal init, SDL library changes signal handlers */ 2610 os_setup_signal_handling(); 2611 2612 /* init remote displays */ 2613 #ifdef CONFIG_VNC 2614 qemu_opts_foreach(qemu_find_opts("vnc"), 2615 vnc_init_func, NULL, &error_fatal); 2616 #endif 2617 2618 if (using_spice) { 2619 qemu_spice.display_init(); 2620 } 2621 } 2622 2623 static void qemu_init_board(void) 2624 { 2625 /* process plugin before CPUs are created, but once -smp has been parsed */ 2626 qemu_plugin_load_list(&plugin_list, &error_fatal); 2627 2628 /* From here on we enter MACHINE_PHASE_INITIALIZED. */ 2629 machine_run_board_init(current_machine, mem_path, &error_fatal); 2630 2631 drive_check_orphaned(); 2632 2633 realtime_init(); 2634 } 2635 2636 static void qemu_create_cli_devices(void) 2637 { 2638 DeviceOption *opt; 2639 2640 soundhw_init(); 2641 2642 qemu_opts_foreach(qemu_find_opts("fw_cfg"), 2643 parse_fw_cfg, fw_cfg_find(), &error_fatal); 2644 2645 /* init USB devices */ 2646 if (machine_usb(current_machine)) { 2647 if (foreach_device_config(DEV_USB, usb_parse) < 0) 2648 exit(1); 2649 } 2650 2651 /* init generic devices */ 2652 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); 2653 qemu_opts_foreach(qemu_find_opts("device"), 2654 device_init_func, NULL, &error_fatal); 2655 QTAILQ_FOREACH(opt, &device_opts, next) { 2656 DeviceState *dev; 2657 loc_push_restore(&opt->loc); 2658 /* 2659 * TODO Eventually we should call qmp_device_add() here to make sure it 2660 * behaves the same, but QMP still has to accept incorrectly typed 2661 * options until libvirt is fixed and we want to be strict on the CLI 2662 * from the start, so call qdev_device_add_from_qdict() directly for 2663 * now. 2664 */ 2665 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal); 2666 object_unref(OBJECT(dev)); 2667 loc_pop(&opt->loc); 2668 } 2669 rom_reset_order_override(); 2670 } 2671 2672 static bool qemu_machine_creation_done(Error **errp) 2673 { 2674 MachineState *machine = MACHINE(qdev_get_machine()); 2675 2676 /* Did we create any drives that we failed to create a device for? */ 2677 drive_check_orphaned(); 2678 2679 /* Don't warn about the default network setup that you get if 2680 * no command line -net or -netdev options are specified. There 2681 * are two cases that we would otherwise complain about: 2682 * (1) board doesn't support a NIC but the implicit "-net nic" 2683 * requested one 2684 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" 2685 * sets up a nic that isn't connected to anything. 2686 */ 2687 if (!default_net && (!qtest_enabled() || has_defaults)) { 2688 net_check_clients(); 2689 } 2690 2691 qdev_prop_check_globals(); 2692 2693 qdev_machine_creation_done(); 2694 2695 if (machine->cgs && !machine->cgs->ready) { 2696 error_setg(errp, "accelerator does not support confidential guest %s", 2697 object_get_typename(OBJECT(machine->cgs))); 2698 exit(1); 2699 } 2700 2701 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { 2702 error_setg(errp, "could not start gdbserver"); 2703 return false; 2704 } 2705 if (!vga_interface_created && !default_vga && 2706 vga_interface_type != VGA_NONE) { 2707 warn_report("A -vga option was passed but this machine " 2708 "type does not use that option; " 2709 "No VGA device has been created"); 2710 } 2711 return true; 2712 } 2713 2714 void qmp_x_exit_preconfig(Error **errp) 2715 { 2716 if (phase_check(PHASE_MACHINE_INITIALIZED)) { 2717 error_setg(errp, "The command is permitted only before machine initialization"); 2718 return; 2719 } 2720 2721 qemu_init_board(); 2722 qemu_create_cli_devices(); 2723 if (!qemu_machine_creation_done(errp)) { 2724 return; 2725 } 2726 2727 if (loadvm) { 2728 RunState state = autostart ? RUN_STATE_RUNNING : runstate_get(); 2729 load_snapshot(loadvm, NULL, false, NULL, &error_fatal); 2730 load_snapshot_resume(state); 2731 } 2732 if (replay_mode != REPLAY_MODE_NONE) { 2733 replay_vmstate_init(); 2734 } 2735 2736 if (incoming) { 2737 Error *local_err = NULL; 2738 if (strcmp(incoming, "defer") != 0) { 2739 qmp_migrate_incoming(incoming, false, NULL, true, true, 2740 &local_err); 2741 if (local_err) { 2742 error_reportf_err(local_err, "-incoming %s: ", incoming); 2743 exit(1); 2744 } 2745 } 2746 } else if (autostart) { 2747 qmp_cont(NULL); 2748 } 2749 } 2750 2751 void qemu_init(int argc, char **argv) 2752 { 2753 QemuOpts *opts; 2754 QemuOpts *icount_opts = NULL, *accel_opts = NULL; 2755 QemuOptsList *olist; 2756 int optind; 2757 const char *optarg; 2758 MachineClass *machine_class; 2759 bool userconfig = true; 2760 FILE *vmstate_dump_file = NULL; 2761 2762 qemu_add_opts(&qemu_drive_opts); 2763 qemu_add_drive_opts(&qemu_legacy_drive_opts); 2764 qemu_add_drive_opts(&qemu_common_drive_opts); 2765 qemu_add_drive_opts(&qemu_drive_opts); 2766 qemu_add_drive_opts(&bdrv_runtime_opts); 2767 qemu_add_opts(&qemu_chardev_opts); 2768 qemu_add_opts(&qemu_device_opts); 2769 qemu_add_opts(&qemu_netdev_opts); 2770 qemu_add_opts(&qemu_nic_opts); 2771 qemu_add_opts(&qemu_net_opts); 2772 qemu_add_opts(&qemu_rtc_opts); 2773 qemu_add_opts(&qemu_global_opts); 2774 qemu_add_opts(&qemu_mon_opts); 2775 qemu_add_opts(&qemu_trace_opts); 2776 qemu_plugin_add_opts(); 2777 qemu_add_opts(&qemu_option_rom_opts); 2778 qemu_add_opts(&qemu_accel_opts); 2779 qemu_add_opts(&qemu_mem_opts); 2780 qemu_add_opts(&qemu_smp_opts); 2781 qemu_add_opts(&qemu_boot_opts); 2782 qemu_add_opts(&qemu_add_fd_opts); 2783 qemu_add_opts(&qemu_object_opts); 2784 qemu_add_opts(&qemu_tpmdev_opts); 2785 qemu_add_opts(&qemu_overcommit_opts); 2786 qemu_add_opts(&qemu_msg_opts); 2787 qemu_add_opts(&qemu_name_opts); 2788 qemu_add_opts(&qemu_numa_opts); 2789 qemu_add_opts(&qemu_icount_opts); 2790 qemu_add_opts(&qemu_semihosting_config_opts); 2791 qemu_add_opts(&qemu_fw_cfg_opts); 2792 qemu_add_opts(&qemu_action_opts); 2793 qemu_add_run_with_opts(); 2794 module_call_init(MODULE_INIT_OPTS); 2795 2796 error_init(argv[0]); 2797 qemu_init_exec_dir(argv[0]); 2798 2799 os_setup_limits(); 2800 2801 qemu_init_arch_modules(); 2802 2803 qemu_init_subsystems(); 2804 2805 /* first pass of option parsing */ 2806 optind = 1; 2807 while (optind < argc) { 2808 if (argv[optind][0] != '-') { 2809 /* disk image */ 2810 optind++; 2811 } else { 2812 const QEMUOption *popt; 2813 2814 popt = lookup_opt(argc, argv, &optarg, &optind); 2815 switch (popt->index) { 2816 case QEMU_OPTION_nouserconfig: 2817 userconfig = false; 2818 break; 2819 } 2820 } 2821 } 2822 2823 machine_opts_dict = qdict_new(); 2824 if (userconfig) { 2825 qemu_read_default_config_file(&error_fatal); 2826 } 2827 2828 /* second pass of option parsing */ 2829 optind = 1; 2830 for(;;) { 2831 if (optind >= argc) 2832 break; 2833 if (argv[optind][0] != '-') { 2834 loc_set_cmdline(argv, optind, 1); 2835 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); 2836 } else { 2837 const QEMUOption *popt; 2838 2839 popt = lookup_opt(argc, argv, &optarg, &optind); 2840 if (!(popt->arch_mask & arch_type)) { 2841 error_report("Option not supported for this target"); 2842 exit(1); 2843 } 2844 switch(popt->index) { 2845 case QEMU_OPTION_cpu: 2846 /* hw initialization will check this */ 2847 cpu_option = optarg; 2848 break; 2849 case QEMU_OPTION_hda: 2850 case QEMU_OPTION_hdb: 2851 case QEMU_OPTION_hdc: 2852 case QEMU_OPTION_hdd: 2853 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, 2854 HD_OPTS); 2855 break; 2856 case QEMU_OPTION_blockdev: 2857 { 2858 Visitor *v; 2859 BlockdevOptionsQueueEntry *bdo; 2860 2861 v = qobject_input_visitor_new_str(optarg, "driver", 2862 &error_fatal); 2863 2864 bdo = g_new(BlockdevOptionsQueueEntry, 1); 2865 visit_type_BlockdevOptions(v, NULL, &bdo->bdo, 2866 &error_fatal); 2867 visit_free(v); 2868 loc_save(&bdo->loc); 2869 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); 2870 break; 2871 } 2872 case QEMU_OPTION_drive: 2873 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), 2874 optarg, false); 2875 if (opts == NULL) { 2876 exit(1); 2877 } 2878 break; 2879 case QEMU_OPTION_set: 2880 qemu_set_option(optarg, &error_fatal); 2881 break; 2882 case QEMU_OPTION_global: 2883 if (qemu_global_option(optarg) != 0) 2884 exit(1); 2885 break; 2886 case QEMU_OPTION_mtdblock: 2887 drive_add(IF_MTD, -1, optarg, MTD_OPTS); 2888 break; 2889 case QEMU_OPTION_sd: 2890 drive_add(IF_SD, -1, optarg, SD_OPTS); 2891 break; 2892 case QEMU_OPTION_pflash: 2893 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); 2894 break; 2895 case QEMU_OPTION_snapshot: 2896 snapshot = 1; 2897 replay_add_blocker("-snapshot"); 2898 break; 2899 case QEMU_OPTION_numa: 2900 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), 2901 optarg, true); 2902 if (!opts) { 2903 exit(1); 2904 } 2905 break; 2906 case QEMU_OPTION_display: 2907 parse_display(optarg); 2908 break; 2909 case QEMU_OPTION_nographic: 2910 qdict_put_str(machine_opts_dict, "graphics", "off"); 2911 nographic = true; 2912 dpy.type = DISPLAY_TYPE_NONE; 2913 break; 2914 case QEMU_OPTION_kernel: 2915 qdict_put_str(machine_opts_dict, "kernel", optarg); 2916 break; 2917 case QEMU_OPTION_initrd: 2918 qdict_put_str(machine_opts_dict, "initrd", optarg); 2919 break; 2920 case QEMU_OPTION_append: 2921 qdict_put_str(machine_opts_dict, "append", optarg); 2922 break; 2923 case QEMU_OPTION_dtb: 2924 qdict_put_str(machine_opts_dict, "dtb", optarg); 2925 break; 2926 case QEMU_OPTION_cdrom: 2927 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); 2928 break; 2929 case QEMU_OPTION_boot: 2930 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); 2931 break; 2932 case QEMU_OPTION_fda: 2933 case QEMU_OPTION_fdb: 2934 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, 2935 optarg, FD_OPTS); 2936 break; 2937 case QEMU_OPTION_no_fd_bootchk: 2938 qdict_put_str(machine_opts_dict, "fd-bootchk", "off"); 2939 break; 2940 case QEMU_OPTION_netdev: 2941 default_net = 0; 2942 if (netdev_is_modern(optarg)) { 2943 netdev_parse_modern(optarg); 2944 } else { 2945 net_client_parse(qemu_find_opts("netdev"), optarg); 2946 } 2947 break; 2948 case QEMU_OPTION_nic: 2949 default_net = 0; 2950 net_client_parse(qemu_find_opts("nic"), optarg); 2951 break; 2952 case QEMU_OPTION_net: 2953 default_net = 0; 2954 net_client_parse(qemu_find_opts("net"), optarg); 2955 break; 2956 #ifdef CONFIG_LIBISCSI 2957 case QEMU_OPTION_iscsi: 2958 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), 2959 optarg, false); 2960 if (!opts) { 2961 exit(1); 2962 } 2963 break; 2964 #endif 2965 case QEMU_OPTION_audiodev: 2966 default_audio = 0; 2967 audio_parse_option(optarg); 2968 break; 2969 case QEMU_OPTION_audio: { 2970 bool help; 2971 char *model = NULL; 2972 Audiodev *dev = NULL; 2973 Visitor *v; 2974 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); 2975 default_audio = 0; 2976 if (help || (qdict_haskey(dict, "driver") && 2977 is_help_option(qdict_get_str(dict, "driver")))) { 2978 audio_help(); 2979 exit(EXIT_SUCCESS); 2980 } 2981 if (!qdict_haskey(dict, "id")) { 2982 qdict_put_str(dict, "id", "audiodev0"); 2983 } 2984 if (qdict_haskey(dict, "model")) { 2985 model = g_strdup(qdict_get_str(dict, "model")); 2986 qdict_del(dict, "model"); 2987 if (is_help_option(model)) { 2988 show_valid_soundhw(); 2989 exit(0); 2990 } 2991 } 2992 v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2993 qobject_unref(dict); 2994 visit_type_Audiodev(v, NULL, &dev, &error_fatal); 2995 visit_free(v); 2996 if (model) { 2997 audio_define(dev); 2998 select_soundhw(model, dev->id); 2999 g_free(model); 3000 } else { 3001 audio_define_default(dev, &error_fatal); 3002 } 3003 break; 3004 } 3005 case QEMU_OPTION_h: 3006 help(0); 3007 break; 3008 case QEMU_OPTION_version: 3009 version(); 3010 exit(0); 3011 break; 3012 case QEMU_OPTION_m: 3013 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); 3014 if (opts == NULL) { 3015 exit(1); 3016 } 3017 break; 3018 #ifdef CONFIG_TPM 3019 case QEMU_OPTION_tpmdev: 3020 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { 3021 exit(1); 3022 } 3023 break; 3024 #endif 3025 case QEMU_OPTION_mempath: 3026 mem_path = optarg; 3027 break; 3028 case QEMU_OPTION_mem_prealloc: 3029 mem_prealloc = 1; 3030 break; 3031 case QEMU_OPTION_d: 3032 log_mask = optarg; 3033 break; 3034 case QEMU_OPTION_D: 3035 log_file = optarg; 3036 break; 3037 case QEMU_OPTION_DFILTER: 3038 qemu_set_dfilter_ranges(optarg, &error_fatal); 3039 break; 3040 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) 3041 case QEMU_OPTION_perfmap: 3042 perf_enable_perfmap(); 3043 break; 3044 case QEMU_OPTION_jitdump: 3045 perf_enable_jitdump(); 3046 break; 3047 #endif 3048 case QEMU_OPTION_seed: 3049 qemu_guest_random_seed_main(optarg, &error_fatal); 3050 break; 3051 case QEMU_OPTION_s: 3052 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); 3053 break; 3054 case QEMU_OPTION_gdb: 3055 add_device_config(DEV_GDB, optarg); 3056 break; 3057 case QEMU_OPTION_L: 3058 if (is_help_option(optarg)) { 3059 list_data_dirs = true; 3060 } else { 3061 qemu_add_data_dir(g_strdup(optarg)); 3062 } 3063 break; 3064 case QEMU_OPTION_bios: 3065 qdict_put_str(machine_opts_dict, "firmware", optarg); 3066 break; 3067 case QEMU_OPTION_S: 3068 autostart = 0; 3069 break; 3070 case QEMU_OPTION_k: 3071 keyboard_layout = optarg; 3072 break; 3073 case QEMU_OPTION_vga: 3074 vga_model = optarg; 3075 default_vga = 0; 3076 break; 3077 case QEMU_OPTION_g: 3078 { 3079 const char *p; 3080 int w, h, depth; 3081 p = optarg; 3082 w = strtol(p, (char **)&p, 10); 3083 if (w <= 0) { 3084 graphic_error: 3085 error_report("invalid resolution or depth"); 3086 exit(1); 3087 } 3088 if (*p != 'x') 3089 goto graphic_error; 3090 p++; 3091 h = strtol(p, (char **)&p, 10); 3092 if (h <= 0) 3093 goto graphic_error; 3094 if (*p == 'x') { 3095 p++; 3096 depth = strtol(p, (char **)&p, 10); 3097 if (depth != 1 && depth != 2 && depth != 4 && 3098 depth != 8 && depth != 15 && depth != 16 && 3099 depth != 24 && depth != 32) 3100 goto graphic_error; 3101 } else if (*p == '\0') { 3102 depth = graphic_depth; 3103 } else { 3104 goto graphic_error; 3105 } 3106 3107 graphic_width = w; 3108 graphic_height = h; 3109 graphic_depth = depth; 3110 } 3111 break; 3112 case QEMU_OPTION_echr: 3113 { 3114 char *r; 3115 term_escape_char = strtol(optarg, &r, 0); 3116 if (r == optarg) 3117 printf("Bad argument to echr\n"); 3118 break; 3119 } 3120 case QEMU_OPTION_monitor: 3121 default_monitor = 0; 3122 if (strncmp(optarg, "none", 4)) { 3123 monitor_parse(optarg, "readline", false); 3124 } 3125 break; 3126 case QEMU_OPTION_qmp: 3127 monitor_parse(optarg, "control", false); 3128 default_monitor = 0; 3129 break; 3130 case QEMU_OPTION_qmp_pretty: 3131 monitor_parse(optarg, "control", true); 3132 default_monitor = 0; 3133 break; 3134 case QEMU_OPTION_mon: 3135 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, 3136 true); 3137 if (!opts) { 3138 exit(1); 3139 } 3140 default_monitor = 0; 3141 break; 3142 case QEMU_OPTION_chardev: 3143 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), 3144 optarg, true); 3145 if (!opts) { 3146 exit(1); 3147 } 3148 break; 3149 case QEMU_OPTION_fsdev: 3150 olist = qemu_find_opts("fsdev"); 3151 if (!olist) { 3152 error_report("fsdev support is disabled"); 3153 exit(1); 3154 } 3155 opts = qemu_opts_parse_noisily(olist, optarg, true); 3156 if (!opts) { 3157 exit(1); 3158 } 3159 break; 3160 case QEMU_OPTION_virtfs: { 3161 QemuOpts *fsdev; 3162 QemuOpts *device; 3163 const char *writeout, *sock_fd, *socket, *path, *security_model, 3164 *multidevs; 3165 3166 olist = qemu_find_opts("virtfs"); 3167 if (!olist) { 3168 error_report("virtfs support is disabled"); 3169 exit(1); 3170 } 3171 opts = qemu_opts_parse_noisily(olist, optarg, true); 3172 if (!opts) { 3173 exit(1); 3174 } 3175 3176 if (qemu_opt_get(opts, "fsdriver") == NULL || 3177 qemu_opt_get(opts, "mount_tag") == NULL) { 3178 error_report("Usage: -virtfs fsdriver,mount_tag=tag"); 3179 exit(1); 3180 } 3181 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), 3182 qemu_opts_id(opts) ?: 3183 qemu_opt_get(opts, "mount_tag"), 3184 1, NULL); 3185 if (!fsdev) { 3186 error_report("duplicate or invalid fsdev id: %s", 3187 qemu_opt_get(opts, "mount_tag")); 3188 exit(1); 3189 } 3190 3191 writeout = qemu_opt_get(opts, "writeout"); 3192 if (writeout) { 3193 #ifdef CONFIG_SYNC_FILE_RANGE 3194 qemu_opt_set(fsdev, "writeout", writeout, &error_abort); 3195 #else 3196 error_report("writeout=immediate not supported " 3197 "on this platform"); 3198 exit(1); 3199 #endif 3200 } 3201 qemu_opt_set(fsdev, "fsdriver", 3202 qemu_opt_get(opts, "fsdriver"), &error_abort); 3203 path = qemu_opt_get(opts, "path"); 3204 if (path) { 3205 qemu_opt_set(fsdev, "path", path, &error_abort); 3206 } 3207 security_model = qemu_opt_get(opts, "security_model"); 3208 if (security_model) { 3209 qemu_opt_set(fsdev, "security_model", security_model, 3210 &error_abort); 3211 } 3212 socket = qemu_opt_get(opts, "socket"); 3213 if (socket) { 3214 qemu_opt_set(fsdev, "socket", socket, &error_abort); 3215 } 3216 sock_fd = qemu_opt_get(opts, "sock_fd"); 3217 if (sock_fd) { 3218 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); 3219 } 3220 3221 qemu_opt_set_bool(fsdev, "readonly", 3222 qemu_opt_get_bool(opts, "readonly", 0), 3223 &error_abort); 3224 multidevs = qemu_opt_get(opts, "multidevs"); 3225 if (multidevs) { 3226 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); 3227 } 3228 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, 3229 &error_abort); 3230 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); 3231 qemu_opt_set(device, "fsdev", 3232 qemu_opts_id(fsdev), &error_abort); 3233 qemu_opt_set(device, "mount_tag", 3234 qemu_opt_get(opts, "mount_tag"), &error_abort); 3235 break; 3236 } 3237 case QEMU_OPTION_serial: 3238 add_device_config(DEV_SERIAL, optarg); 3239 default_serial = 0; 3240 if (strncmp(optarg, "mon:", 4) == 0) { 3241 default_monitor = 0; 3242 } 3243 break; 3244 case QEMU_OPTION_action: 3245 olist = qemu_find_opts("action"); 3246 if (!qemu_opts_parse_noisily(olist, optarg, false)) { 3247 exit(1); 3248 } 3249 break; 3250 case QEMU_OPTION_watchdog_action: { 3251 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); 3252 qemu_opt_set(opts, "watchdog", optarg, &error_abort); 3253 break; 3254 } 3255 case QEMU_OPTION_parallel: 3256 add_device_config(DEV_PARALLEL, optarg); 3257 default_parallel = 0; 3258 if (strncmp(optarg, "mon:", 4) == 0) { 3259 default_monitor = 0; 3260 } 3261 break; 3262 case QEMU_OPTION_debugcon: 3263 add_device_config(DEV_DEBUGCON, optarg); 3264 break; 3265 case QEMU_OPTION_loadvm: 3266 loadvm = optarg; 3267 break; 3268 case QEMU_OPTION_full_screen: 3269 dpy.has_full_screen = true; 3270 dpy.full_screen = true; 3271 break; 3272 case QEMU_OPTION_pidfile: 3273 pid_file = optarg; 3274 break; 3275 case QEMU_OPTION_win2k_hack: 3276 object_register_sugar_prop("ide-device", "win2k-install-hack", "true", true); 3277 break; 3278 case QEMU_OPTION_acpitable: 3279 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), 3280 optarg, true); 3281 if (!opts) { 3282 exit(1); 3283 } 3284 acpi_table_add(opts, &error_fatal); 3285 break; 3286 case QEMU_OPTION_smbios: 3287 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), 3288 optarg, false); 3289 if (!opts) { 3290 exit(1); 3291 } 3292 smbios_entry_add(opts, &error_fatal); 3293 break; 3294 case QEMU_OPTION_fwcfg: 3295 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), 3296 optarg, true); 3297 if (opts == NULL) { 3298 exit(1); 3299 } 3300 break; 3301 case QEMU_OPTION_preconfig: 3302 preconfig_requested = true; 3303 break; 3304 case QEMU_OPTION_enable_kvm: 3305 qdict_put_str(machine_opts_dict, "accel", "kvm"); 3306 break; 3307 case QEMU_OPTION_M: 3308 case QEMU_OPTION_machine: 3309 { 3310 bool help; 3311 3312 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); 3313 if (help) { 3314 machine_help_func(machine_opts_dict); 3315 exit(EXIT_SUCCESS); 3316 } 3317 break; 3318 } 3319 case QEMU_OPTION_accel: 3320 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), 3321 optarg, true); 3322 optarg = qemu_opt_get(accel_opts, "accel"); 3323 if (!optarg || is_help_option(optarg)) { 3324 printf("Accelerators supported in QEMU binary:\n"); 3325 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, 3326 false); 3327 for (el = accel_list; el; el = el->next) { 3328 gchar *typename = g_strdup(object_class_get_name( 3329 OBJECT_CLASS(el->data))); 3330 /* omit qtest which is used for tests only */ 3331 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && 3332 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { 3333 gchar **optname = g_strsplit(typename, 3334 ACCEL_CLASS_SUFFIX, 0); 3335 printf("%s\n", optname[0]); 3336 g_strfreev(optname); 3337 } 3338 g_free(typename); 3339 } 3340 g_slist_free(accel_list); 3341 exit(0); 3342 } 3343 break; 3344 case QEMU_OPTION_usb: 3345 qdict_put_str(machine_opts_dict, "usb", "on"); 3346 break; 3347 case QEMU_OPTION_usbdevice: 3348 qdict_put_str(machine_opts_dict, "usb", "on"); 3349 add_device_config(DEV_USB, optarg); 3350 break; 3351 case QEMU_OPTION_device: 3352 if (optarg[0] == '{') { 3353 QObject *obj = qobject_from_json(optarg, &error_fatal); 3354 DeviceOption *opt = g_new0(DeviceOption, 1); 3355 opt->opts = qobject_to(QDict, obj); 3356 loc_save(&opt->loc); 3357 assert(opt->opts != NULL); 3358 QTAILQ_INSERT_TAIL(&device_opts, opt, next); 3359 } else { 3360 if (!qemu_opts_parse_noisily(qemu_find_opts("device"), 3361 optarg, true)) { 3362 exit(1); 3363 } 3364 } 3365 break; 3366 case QEMU_OPTION_smp: 3367 machine_parse_property_opt(qemu_find_opts("smp-opts"), 3368 "smp", optarg); 3369 break; 3370 #ifdef CONFIG_VNC 3371 case QEMU_OPTION_vnc: 3372 vnc_parse(optarg); 3373 display_remote++; 3374 break; 3375 #endif 3376 case QEMU_OPTION_no_reboot: 3377 olist = qemu_find_opts("action"); 3378 qemu_opts_parse_noisily(olist, "reboot=shutdown", false); 3379 break; 3380 case QEMU_OPTION_no_shutdown: 3381 olist = qemu_find_opts("action"); 3382 qemu_opts_parse_noisily(olist, "shutdown=pause", false); 3383 break; 3384 case QEMU_OPTION_uuid: 3385 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { 3386 error_report("failed to parse UUID string: wrong format"); 3387 exit(1); 3388 } 3389 qemu_uuid_set = true; 3390 break; 3391 case QEMU_OPTION_option_rom: 3392 if (nb_option_roms >= MAX_OPTION_ROMS) { 3393 error_report("too many option ROMs"); 3394 exit(1); 3395 } 3396 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), 3397 optarg, true); 3398 if (!opts) { 3399 exit(1); 3400 } 3401 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); 3402 option_rom[nb_option_roms].bootindex = 3403 qemu_opt_get_number(opts, "bootindex", -1); 3404 if (!option_rom[nb_option_roms].name) { 3405 error_report("Option ROM file is not specified"); 3406 exit(1); 3407 } 3408 nb_option_roms++; 3409 break; 3410 case QEMU_OPTION_semihosting: 3411 qemu_semihosting_enable(); 3412 break; 3413 case QEMU_OPTION_semihosting_config: 3414 if (qemu_semihosting_config_options(optarg) != 0) { 3415 exit(1); 3416 } 3417 break; 3418 case QEMU_OPTION_name: 3419 opts = qemu_opts_parse_noisily(qemu_find_opts("name"), 3420 optarg, true); 3421 if (!opts) { 3422 exit(1); 3423 } 3424 /* Capture guest name if -msg guest-name is used later */ 3425 error_guest_name = qemu_opt_get(opts, "guest"); 3426 break; 3427 case QEMU_OPTION_prom_env: 3428 if (nb_prom_envs >= MAX_PROM_ENVS) { 3429 error_report("too many prom variables"); 3430 exit(1); 3431 } 3432 prom_envs[nb_prom_envs] = optarg; 3433 nb_prom_envs++; 3434 break; 3435 case QEMU_OPTION_old_param: 3436 old_param = 1; 3437 break; 3438 case QEMU_OPTION_rtc: 3439 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, 3440 false); 3441 if (!opts) { 3442 exit(1); 3443 } 3444 break; 3445 case QEMU_OPTION_icount: 3446 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), 3447 optarg, true); 3448 if (!icount_opts) { 3449 exit(1); 3450 } 3451 break; 3452 case QEMU_OPTION_incoming: 3453 if (!incoming) { 3454 runstate_set(RUN_STATE_INMIGRATE); 3455 } 3456 incoming = optarg; 3457 break; 3458 case QEMU_OPTION_only_migratable: 3459 only_migratable = 1; 3460 break; 3461 case QEMU_OPTION_nodefaults: 3462 has_defaults = 0; 3463 break; 3464 case QEMU_OPTION_xen_domid: 3465 if (!(accel_find("xen")) && !(accel_find("kvm"))) { 3466 error_report("Option not supported for this target"); 3467 exit(1); 3468 } 3469 xen_domid = atoi(optarg); 3470 break; 3471 case QEMU_OPTION_xen_attach: 3472 if (!(accel_find("xen"))) { 3473 error_report("Option not supported for this target"); 3474 exit(1); 3475 } 3476 xen_mode = XEN_ATTACH; 3477 break; 3478 case QEMU_OPTION_xen_domid_restrict: 3479 if (!(accel_find("xen"))) { 3480 error_report("Option not supported for this target"); 3481 exit(1); 3482 } 3483 xen_domid_restrict = true; 3484 break; 3485 case QEMU_OPTION_trace: 3486 trace_opt_parse(optarg); 3487 break; 3488 case QEMU_OPTION_plugin: 3489 qemu_plugin_opt_parse(optarg, &plugin_list); 3490 break; 3491 case QEMU_OPTION_readconfig: 3492 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); 3493 break; 3494 #ifdef CONFIG_SPICE 3495 case QEMU_OPTION_spice: 3496 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false); 3497 if (!opts) { 3498 exit(1); 3499 } 3500 display_remote++; 3501 break; 3502 #endif 3503 case QEMU_OPTION_qtest: 3504 qtest_chrdev = optarg; 3505 break; 3506 case QEMU_OPTION_qtest_log: 3507 qtest_log = optarg; 3508 break; 3509 case QEMU_OPTION_sandbox: 3510 olist = qemu_find_opts("sandbox"); 3511 if (!olist) { 3512 #ifndef CONFIG_SECCOMP 3513 error_report("-sandbox support is not enabled " 3514 "in this QEMU binary"); 3515 #endif 3516 exit(1); 3517 } 3518 3519 opts = qemu_opts_parse_noisily(olist, optarg, true); 3520 if (!opts) { 3521 exit(1); 3522 } 3523 break; 3524 case QEMU_OPTION_add_fd: 3525 #ifndef _WIN32 3526 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), 3527 optarg, false); 3528 if (!opts) { 3529 exit(1); 3530 } 3531 #else 3532 error_report("File descriptor passing is disabled on this " 3533 "platform"); 3534 exit(1); 3535 #endif 3536 break; 3537 case QEMU_OPTION_object: 3538 object_option_parse(optarg); 3539 break; 3540 case QEMU_OPTION_overcommit: 3541 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), 3542 optarg, false); 3543 if (!opts) { 3544 exit(1); 3545 } 3546 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", enable_mlock); 3547 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", enable_cpu_pm); 3548 break; 3549 case QEMU_OPTION_compat: 3550 { 3551 CompatPolicy *opts_policy; 3552 Visitor *v; 3553 3554 v = qobject_input_visitor_new_str(optarg, NULL, 3555 &error_fatal); 3556 3557 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); 3558 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); 3559 3560 qapi_free_CompatPolicy(opts_policy); 3561 visit_free(v); 3562 break; 3563 } 3564 case QEMU_OPTION_msg: 3565 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, 3566 false); 3567 if (!opts) { 3568 exit(1); 3569 } 3570 configure_msg(opts); 3571 break; 3572 case QEMU_OPTION_dump_vmstate: 3573 if (vmstate_dump_file) { 3574 error_report("only one '-dump-vmstate' " 3575 "option may be given"); 3576 exit(1); 3577 } 3578 vmstate_dump_file = fopen(optarg, "w"); 3579 if (vmstate_dump_file == NULL) { 3580 error_report("open %s: %s", optarg, strerror(errno)); 3581 exit(1); 3582 } 3583 break; 3584 case QEMU_OPTION_enable_sync_profile: 3585 qsp_enable(); 3586 break; 3587 case QEMU_OPTION_nouserconfig: 3588 /* Nothing to be parsed here. Especially, do not error out below. */ 3589 break; 3590 #if defined(CONFIG_POSIX) 3591 case QEMU_OPTION_runas: 3592 warn_report("-runas is deprecated, use '-run-with user=...' instead"); 3593 if (!os_set_runas(optarg)) { 3594 error_report("User \"%s\" doesn't exist" 3595 " (and is not <uid>:<gid>)", 3596 optarg); 3597 exit(1); 3598 } 3599 break; 3600 case QEMU_OPTION_daemonize: 3601 os_set_daemonize(true); 3602 break; 3603 case QEMU_OPTION_run_with: { 3604 const char *str; 3605 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), 3606 optarg, false); 3607 if (!opts) { 3608 exit(1); 3609 } 3610 #if defined(CONFIG_LINUX) 3611 if (qemu_opt_get_bool(opts, "async-teardown", false)) { 3612 init_async_teardown(); 3613 } 3614 #endif 3615 str = qemu_opt_get(opts, "chroot"); 3616 if (str) { 3617 os_set_chroot(str); 3618 } 3619 str = qemu_opt_get(opts, "user"); 3620 if (str) { 3621 if (!os_set_runas(str)) { 3622 error_report("User \"%s\" doesn't exist" 3623 " (and is not <uid>:<gid>)", 3624 optarg); 3625 exit(1); 3626 } 3627 } 3628 3629 break; 3630 } 3631 #endif /* CONFIG_POSIX */ 3632 3633 default: 3634 error_report("Option not supported in this build"); 3635 exit(1); 3636 } 3637 } 3638 } 3639 /* 3640 * Clear error location left behind by the loop. 3641 * Best done right after the loop. Do not insert code here! 3642 */ 3643 loc_set_none(); 3644 3645 qemu_validate_options(machine_opts_dict); 3646 qemu_process_sugar_options(); 3647 3648 /* 3649 * These options affect everything else and should be processed 3650 * before daemonizing. 3651 */ 3652 qemu_process_early_options(); 3653 3654 qemu_process_help_options(); 3655 qemu_maybe_daemonize(pid_file); 3656 3657 /* 3658 * The trace backend must be initialized after daemonizing. 3659 * trace_init_backends() will call st_init(), which will create the 3660 * trace thread in the parent, and also register st_flush_trace_buffer() 3661 * in atexit(). This function will force the parent to wait for the 3662 * writeout thread to finish, which will not occur, and the parent 3663 * process will be left in the host. 3664 */ 3665 if (!trace_init_backends()) { 3666 exit(1); 3667 } 3668 trace_init_file(); 3669 3670 qemu_init_main_loop(&error_fatal); 3671 cpu_timers_init(); 3672 3673 user_register_global_props(); 3674 replay_configure(icount_opts); 3675 3676 configure_rtc(qemu_find_opts_singleton("rtc")); 3677 3678 /* Transfer QemuOpts options into machine options */ 3679 parse_memory_options(); 3680 3681 qemu_create_machine(machine_opts_dict); 3682 3683 suspend_mux_open(); 3684 3685 qemu_disable_default_devices(); 3686 qemu_setup_display(); 3687 qemu_create_default_devices(); 3688 qemu_create_early_backends(); 3689 3690 qemu_apply_legacy_machine_options(machine_opts_dict); 3691 qemu_apply_machine_options(machine_opts_dict); 3692 qobject_unref(machine_opts_dict); 3693 phase_advance(PHASE_MACHINE_CREATED); 3694 3695 /* 3696 * Note: uses machine properties such as kernel-irqchip, must run 3697 * after qemu_apply_machine_options. 3698 */ 3699 configure_accelerators(argv[0]); 3700 phase_advance(PHASE_ACCEL_CREATED); 3701 3702 /* 3703 * Beware, QOM objects created before this point miss global and 3704 * compat properties. 3705 * 3706 * Global properties get set up by qdev_prop_register_global(), 3707 * called from user_register_global_props(), and certain option 3708 * desugaring. Also in CPU feature desugaring (buried in 3709 * parse_cpu_option()), which happens below this point, but may 3710 * only target the CPU type, which can only be created after 3711 * parse_cpu_option() returned the type. 3712 * 3713 * Machine compat properties: object_set_machine_compat_props(). 3714 * Accelerator compat props: object_set_accelerator_compat_props(), 3715 * called from do_configure_accelerator(). 3716 */ 3717 3718 machine_class = MACHINE_GET_CLASS(current_machine); 3719 if (!qtest_enabled() && machine_class->deprecation_reason) { 3720 warn_report("Machine type '%s' is deprecated: %s", 3721 machine_class->name, machine_class->deprecation_reason); 3722 } 3723 3724 /* 3725 * Create backends before creating migration objects, so that it can 3726 * check against compatibilities on the backend memories (e.g. postcopy 3727 * over memory-backend-file objects). 3728 */ 3729 qemu_create_late_backends(); 3730 phase_advance(PHASE_LATE_BACKENDS_CREATED); 3731 3732 /* 3733 * Note: creates a QOM object, must run only after global and 3734 * compat properties have been set up. 3735 */ 3736 migration_object_init(); 3737 3738 /* parse features once if machine provides default cpu_type */ 3739 current_machine->cpu_type = machine_class_default_cpu_type(machine_class); 3740 if (cpu_option) { 3741 current_machine->cpu_type = parse_cpu_option(cpu_option); 3742 } 3743 /* NB: for machine none cpu_type could STILL be NULL here! */ 3744 3745 qemu_resolve_machine_memdev(); 3746 parse_numa_opts(current_machine); 3747 3748 if (vmstate_dump_file) { 3749 /* dump and exit */ 3750 module_load_qom_all(); 3751 dump_vmstate_json_to_file(vmstate_dump_file); 3752 exit(0); 3753 } 3754 3755 if (!preconfig_requested) { 3756 qmp_x_exit_preconfig(&error_fatal); 3757 } 3758 qemu_init_displays(); 3759 accel_setup_post(current_machine); 3760 os_setup_post(); 3761 resume_mux_open(); 3762 } 3763