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 return !ti->class_names[0] || 1004 module_object_class_by_name(ti->class_names[0]) || 1005 module_object_class_by_name(ti->class_names[1]); 1006 } 1007 1008 static const char * 1009 get_default_vga_model(const MachineClass *machine_class) 1010 { 1011 if (machine_class->default_display) { 1012 for (int t = 0; t < VGA_TYPE_MAX; t++) { 1013 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1014 1015 if (ti->opt_name && vga_interface_available(t) && 1016 g_str_equal(ti->opt_name, machine_class->default_display)) { 1017 return machine_class->default_display; 1018 } 1019 } 1020 1021 warn_report_once("Default display '%s' is not available in this binary", 1022 machine_class->default_display); 1023 return NULL; 1024 } else if (vga_interface_available(VGA_CIRRUS)) { 1025 return "cirrus"; 1026 } else if (vga_interface_available(VGA_STD)) { 1027 return "std"; 1028 } 1029 1030 return NULL; 1031 } 1032 1033 static void select_vgahw(const MachineClass *machine_class, const char *p) 1034 { 1035 const char *opts; 1036 int t; 1037 1038 if (g_str_equal(p, "help")) { 1039 const char *def = get_default_vga_model(machine_class); 1040 1041 for (t = 0; t < VGA_TYPE_MAX; t++) { 1042 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1043 1044 if (vga_interface_available(t) && ti->opt_name) { 1045 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "", 1046 (def && g_str_equal(ti->opt_name, def)) ? 1047 " (default)" : ""); 1048 } 1049 } 1050 exit(0); 1051 } 1052 1053 assert(vga_interface_type == VGA_NONE); 1054 for (t = 0; t < VGA_TYPE_MAX; t++) { 1055 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1056 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) { 1057 if (!vga_interface_available(t)) { 1058 error_report("%s not available", ti->name); 1059 exit(1); 1060 } 1061 vga_interface_type = t; 1062 break; 1063 } 1064 } 1065 if (t == VGA_TYPE_MAX) { 1066 invalid_vga: 1067 error_report("unknown vga type: %s", p); 1068 exit(1); 1069 } 1070 while (*opts) { 1071 const char *nextopt; 1072 1073 if (strstart(opts, ",retrace=", &nextopt)) { 1074 opts = nextopt; 1075 if (strstart(opts, "dumb", &nextopt)) 1076 vga_retrace_method = VGA_RETRACE_DUMB; 1077 else if (strstart(opts, "precise", &nextopt)) 1078 vga_retrace_method = VGA_RETRACE_PRECISE; 1079 else goto invalid_vga; 1080 } else goto invalid_vga; 1081 opts = nextopt; 1082 } 1083 } 1084 1085 static void parse_display_qapi(const char *str) 1086 { 1087 DisplayOptions *opts; 1088 Visitor *v; 1089 1090 v = qobject_input_visitor_new_str(str, "type", &error_fatal); 1091 1092 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); 1093 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts); 1094 1095 qapi_free_DisplayOptions(opts); 1096 visit_free(v); 1097 } 1098 1099 DisplayOptions *qmp_query_display_options(Error **errp) 1100 { 1101 return QAPI_CLONE(DisplayOptions, &dpy); 1102 } 1103 1104 static void parse_display(const char *p) 1105 { 1106 if (is_help_option(p)) { 1107 qemu_display_help(); 1108 exit(0); 1109 } 1110 1111 #ifdef CONFIG_VNC 1112 const char *opts; 1113 1114 if (strstart(p, "vnc", &opts)) { 1115 /* 1116 * vnc isn't a (local) DisplayType but a protocol for remote 1117 * display access. 1118 */ 1119 if (*opts == '=') { 1120 vnc_parse(opts + 1); 1121 display_remote++; 1122 } else { 1123 error_report("VNC requires a display argument vnc=<display>"); 1124 exit(1); 1125 } 1126 return; 1127 } 1128 #endif 1129 1130 parse_display_qapi(p); 1131 } 1132 1133 static inline bool nonempty_str(const char *str) 1134 { 1135 return str && *str; 1136 } 1137 1138 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) 1139 { 1140 gchar *buf; 1141 size_t size; 1142 const char *name, *file, *str, *gen_id; 1143 FWCfgState *fw_cfg = (FWCfgState *) opaque; 1144 1145 if (fw_cfg == NULL) { 1146 error_setg(errp, "fw_cfg device not available"); 1147 return -1; 1148 } 1149 name = qemu_opt_get(opts, "name"); 1150 file = qemu_opt_get(opts, "file"); 1151 str = qemu_opt_get(opts, "string"); 1152 gen_id = qemu_opt_get(opts, "gen_id"); 1153 1154 /* we need the name, and exactly one of: file, content string, gen_id */ 1155 if (!nonempty_str(name) || 1156 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) { 1157 error_setg(errp, "name, plus exactly one of file," 1158 " string and gen_id, are needed"); 1159 return -1; 1160 } 1161 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { 1162 error_setg(errp, "name too long (max. %d char)", 1163 FW_CFG_MAX_FILE_PATH - 1); 1164 return -1; 1165 } 1166 if (nonempty_str(gen_id)) { 1167 /* 1168 * In this particular case where the content is populated 1169 * internally, the "etc/" namespace protection is relaxed, 1170 * so do not emit a warning. 1171 */ 1172 } else if (strncmp(name, "opt/", 4) != 0) { 1173 warn_report("externally provided fw_cfg item names " 1174 "should be prefixed with \"opt/\""); 1175 } 1176 if (nonempty_str(str)) { 1177 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */ 1178 buf = g_memdup(str, size); 1179 } else if (nonempty_str(gen_id)) { 1180 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) { 1181 return -1; 1182 } 1183 return 0; 1184 } else { 1185 GError *err = NULL; 1186 if (!g_file_get_contents(file, &buf, &size, &err)) { 1187 error_setg(errp, "can't load %s: %s", file, err->message); 1188 g_error_free(err); 1189 return -1; 1190 } 1191 } 1192 /* For legacy, keep user files in a specific global order. */ 1193 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); 1194 fw_cfg_add_file(fw_cfg, name, buf, size); 1195 fw_cfg_reset_order_override(fw_cfg); 1196 return 0; 1197 } 1198 1199 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) 1200 { 1201 return qdev_device_help(opts); 1202 } 1203 1204 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) 1205 { 1206 DeviceState *dev; 1207 1208 dev = qdev_device_add(opts, errp); 1209 if (!dev && *errp) { 1210 error_report_err(*errp); 1211 return -1; 1212 } else if (dev) { 1213 object_unref(OBJECT(dev)); 1214 } 1215 return 0; 1216 } 1217 1218 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1219 { 1220 Error *local_err = NULL; 1221 1222 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { 1223 if (local_err) { 1224 error_propagate(errp, local_err); 1225 return -1; 1226 } 1227 exit(0); 1228 } 1229 return 0; 1230 } 1231 1232 #ifdef CONFIG_VIRTFS 1233 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1234 { 1235 return qemu_fsdev_add(opts, errp); 1236 } 1237 #endif 1238 1239 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) 1240 { 1241 return monitor_init_opts(opts, errp); 1242 } 1243 1244 static void monitor_parse(const char *str, const char *mode, bool pretty) 1245 { 1246 static int monitor_device_index = 0; 1247 QemuOpts *opts; 1248 const char *p; 1249 char label[32]; 1250 1251 if (strstart(str, "chardev:", &p)) { 1252 snprintf(label, sizeof(label), "%s", p); 1253 } else { 1254 snprintf(label, sizeof(label), "compat_monitor%d", 1255 monitor_device_index); 1256 opts = qemu_chr_parse_compat(label, str, true); 1257 if (!opts) { 1258 error_report("parse error: %s", str); 1259 exit(1); 1260 } 1261 } 1262 1263 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); 1264 qemu_opt_set(opts, "mode", mode, &error_abort); 1265 qemu_opt_set(opts, "chardev", label, &error_abort); 1266 if (!strcmp(mode, "control")) { 1267 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); 1268 } else { 1269 assert(pretty == false); 1270 } 1271 monitor_device_index++; 1272 } 1273 1274 struct device_config { 1275 enum { 1276 DEV_USB, /* -usbdevice */ 1277 DEV_SERIAL, /* -serial */ 1278 DEV_PARALLEL, /* -parallel */ 1279 DEV_DEBUGCON, /* -debugcon */ 1280 DEV_GDB, /* -gdb, -s */ 1281 DEV_SCLP, /* s390 sclp */ 1282 } type; 1283 const char *cmdline; 1284 Location loc; 1285 QTAILQ_ENTRY(device_config) next; 1286 }; 1287 1288 static QTAILQ_HEAD(, device_config) device_configs = 1289 QTAILQ_HEAD_INITIALIZER(device_configs); 1290 1291 static void add_device_config(int type, const char *cmdline) 1292 { 1293 struct device_config *conf; 1294 1295 conf = g_malloc0(sizeof(*conf)); 1296 conf->type = type; 1297 conf->cmdline = cmdline; 1298 loc_save(&conf->loc); 1299 QTAILQ_INSERT_TAIL(&device_configs, conf, next); 1300 } 1301 1302 static int foreach_device_config(int type, int (*func)(const char *cmdline)) 1303 { 1304 struct device_config *conf; 1305 int rc; 1306 1307 QTAILQ_FOREACH(conf, &device_configs, next) { 1308 if (conf->type != type) 1309 continue; 1310 loc_push_restore(&conf->loc); 1311 rc = func(conf->cmdline); 1312 loc_pop(&conf->loc); 1313 if (rc) { 1314 return rc; 1315 } 1316 } 1317 return 0; 1318 } 1319 1320 static void qemu_disable_default_devices(void) 1321 { 1322 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1323 1324 default_driver_check_json(); 1325 qemu_opts_foreach(qemu_find_opts("device"), 1326 default_driver_check, NULL, NULL); 1327 qemu_opts_foreach(qemu_find_opts("global"), 1328 default_driver_check, NULL, NULL); 1329 1330 if (!vga_model && !default_vga) { 1331 vga_interface_type = VGA_DEVICE; 1332 vga_interface_created = true; 1333 } 1334 if (!has_defaults || machine_class->no_serial) { 1335 default_serial = 0; 1336 } 1337 if (!has_defaults || machine_class->no_parallel) { 1338 default_parallel = 0; 1339 } 1340 if (!has_defaults || machine_class->no_floppy) { 1341 default_floppy = 0; 1342 } 1343 if (!has_defaults || machine_class->no_cdrom) { 1344 default_cdrom = 0; 1345 } 1346 if (!has_defaults || machine_class->no_sdcard) { 1347 default_sdcard = 0; 1348 } 1349 if (!has_defaults) { 1350 default_audio = 0; 1351 default_monitor = 0; 1352 default_net = 0; 1353 default_vga = 0; 1354 } else { 1355 if (default_net && machine_class->default_nic && 1356 !module_object_class_by_name(machine_class->default_nic)) { 1357 warn_report("Default NIC '%s' is not available in this binary", 1358 machine_class->default_nic); 1359 default_net = 0; 1360 } 1361 } 1362 } 1363 1364 static void qemu_setup_display(void) 1365 { 1366 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { 1367 if (!qemu_display_find_default(&dpy)) { 1368 dpy.type = DISPLAY_TYPE_NONE; 1369 #if defined(CONFIG_VNC) 1370 vnc_parse("localhost:0,to=99,id=default"); 1371 display_remote++; 1372 #endif 1373 } 1374 } 1375 if (dpy.type == DISPLAY_TYPE_DEFAULT) { 1376 dpy.type = DISPLAY_TYPE_NONE; 1377 } 1378 1379 qemu_display_early_init(&dpy); 1380 } 1381 1382 static void qemu_create_default_devices(void) 1383 { 1384 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1385 const char *vc = qemu_display_get_vc(&dpy); 1386 1387 if (is_daemonized()) { 1388 /* According to documentation and historically, -nographic redirects 1389 * serial port, parallel port and monitor to stdio, which does not work 1390 * with -daemonize. We can redirect these to null instead, but since 1391 * -nographic is legacy, let's just error out. 1392 * We disallow -nographic only if all other ports are not redirected 1393 * explicitly, to not break existing legacy setups which uses 1394 * -nographic _and_ redirects all ports explicitly - this is valid 1395 * usage, -nographic is just a no-op in this case. 1396 */ 1397 if (nographic 1398 && (default_parallel || default_serial || default_monitor)) { 1399 error_report("-nographic cannot be used with -daemonize"); 1400 exit(1); 1401 } 1402 } 1403 1404 if (nographic) { 1405 if (default_parallel) { 1406 add_device_config(DEV_PARALLEL, "null"); 1407 } 1408 if (default_serial && default_monitor) { 1409 add_device_config(DEV_SERIAL, "mon:stdio"); 1410 } else { 1411 if (default_serial) { 1412 add_device_config(DEV_SERIAL, "stdio"); 1413 } 1414 if (default_monitor) { 1415 monitor_parse("stdio", "readline", false); 1416 } 1417 } 1418 } else { 1419 if (default_serial) { 1420 add_device_config(DEV_SERIAL, vc ?: "null"); 1421 } 1422 if (default_parallel) { 1423 add_device_config(DEV_PARALLEL, vc ?: "null"); 1424 } 1425 if (default_monitor && vc) { 1426 monitor_parse(vc, "readline", false); 1427 } 1428 } 1429 1430 if (default_net) { 1431 QemuOptsList *net = qemu_find_opts("net"); 1432 qemu_opts_parse(net, "nic", true, &error_abort); 1433 #ifdef CONFIG_SLIRP 1434 qemu_opts_parse(net, "user", true, &error_abort); 1435 #endif 1436 } 1437 1438 /* If no default VGA is requested, the default is "none". */ 1439 if (default_vga) { 1440 vga_model = get_default_vga_model(machine_class); 1441 } 1442 if (vga_model) { 1443 select_vgahw(machine_class, vga_model); 1444 } 1445 } 1446 1447 static int serial_parse(const char *devname) 1448 { 1449 int index = num_serial_hds; 1450 1451 serial_hds = g_renew(Chardev *, serial_hds, index + 1); 1452 1453 if (strcmp(devname, "none") == 0) { 1454 /* Don't allocate a serial device for this index */ 1455 serial_hds[index] = NULL; 1456 } else { 1457 char label[32]; 1458 snprintf(label, sizeof(label), "serial%d", index); 1459 1460 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1461 if (!serial_hds[index]) { 1462 error_report("could not connect serial device" 1463 " to character backend '%s'", devname); 1464 return -1; 1465 } 1466 } 1467 num_serial_hds++; 1468 return 0; 1469 } 1470 1471 Chardev *serial_hd(int i) 1472 { 1473 assert(i >= 0); 1474 if (i < num_serial_hds) { 1475 return serial_hds[i]; 1476 } 1477 return NULL; 1478 } 1479 1480 static int parallel_parse(const char *devname) 1481 { 1482 static int index = 0; 1483 char label[32]; 1484 1485 if (strcmp(devname, "none") == 0) 1486 return 0; 1487 if (index == MAX_PARALLEL_PORTS) { 1488 error_report("too many parallel ports"); 1489 exit(1); 1490 } 1491 snprintf(label, sizeof(label), "parallel%d", index); 1492 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1493 if (!parallel_hds[index]) { 1494 error_report("could not connect parallel device" 1495 " to character backend '%s'", devname); 1496 return -1; 1497 } 1498 index++; 1499 return 0; 1500 } 1501 1502 static int debugcon_parse(const char *devname) 1503 { 1504 QemuOpts *opts; 1505 1506 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { 1507 error_report("invalid character backend '%s'", devname); 1508 exit(1); 1509 } 1510 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); 1511 if (!opts) { 1512 error_report("already have a debugcon device"); 1513 exit(1); 1514 } 1515 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); 1516 qemu_opt_set(opts, "chardev", "debugcon", &error_abort); 1517 return 0; 1518 } 1519 1520 static gint machine_class_cmp(gconstpointer a, gconstpointer b) 1521 { 1522 const MachineClass *mc1 = a, *mc2 = b; 1523 int res; 1524 1525 if (mc1->family == NULL) { 1526 if (mc2->family == NULL) { 1527 /* Compare standalone machine types against each other; they sort 1528 * in increasing order. 1529 */ 1530 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), 1531 object_class_get_name(OBJECT_CLASS(mc2))); 1532 } 1533 1534 /* Standalone machine types sort after families. */ 1535 return 1; 1536 } 1537 1538 if (mc2->family == NULL) { 1539 /* Families sort before standalone machine types. */ 1540 return -1; 1541 } 1542 1543 /* Families sort between each other alphabetically increasingly. */ 1544 res = strcmp(mc1->family, mc2->family); 1545 if (res != 0) { 1546 return res; 1547 } 1548 1549 /* Within the same family, machine types sort in decreasing order. */ 1550 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), 1551 object_class_get_name(OBJECT_CLASS(mc1))); 1552 } 1553 1554 static void machine_help_func(const QDict *qdict) 1555 { 1556 g_autoptr(GSList) machines = NULL; 1557 GSList *el; 1558 const char *type = qdict_get_try_str(qdict, "type"); 1559 1560 machines = object_class_get_list(TYPE_MACHINE, false); 1561 if (type) { 1562 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); 1563 if (machine_class) { 1564 type_print_class_properties(object_class_get_name(machine_class)); 1565 return; 1566 } 1567 } 1568 1569 printf("Supported machines are:\n"); 1570 machines = g_slist_sort(machines, machine_class_cmp); 1571 for (el = machines; el; el = el->next) { 1572 MachineClass *mc = el->data; 1573 if (mc->alias) { 1574 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); 1575 } 1576 printf("%-20s %s%s%s\n", mc->name, mc->desc, 1577 mc->is_default ? " (default)" : "", 1578 mc->deprecation_reason ? " (deprecated)" : ""); 1579 } 1580 } 1581 1582 static void 1583 machine_merge_property(const char *propname, QDict *prop, Error **errp) 1584 { 1585 QDict *opts; 1586 1587 opts = qdict_new(); 1588 /* Preserve the caller's reference to prop. */ 1589 qobject_ref(prop); 1590 qdict_put(opts, propname, prop); 1591 keyval_merge(machine_opts_dict, opts, errp); 1592 qobject_unref(opts); 1593 } 1594 1595 static void 1596 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, 1597 const char *arg) 1598 { 1599 QDict *prop = NULL; 1600 bool help = false; 1601 1602 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); 1603 if (help) { 1604 qemu_opts_print_help(opts_list, true); 1605 exit(0); 1606 } 1607 machine_merge_property(propname, prop, &error_fatal); 1608 qobject_unref(prop); 1609 } 1610 1611 static const char *pid_file; 1612 struct UnlinkPidfileNotifier { 1613 Notifier notifier; 1614 char *pid_file_realpath; 1615 }; 1616 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; 1617 1618 static void qemu_unlink_pidfile(Notifier *n, void *data) 1619 { 1620 struct UnlinkPidfileNotifier *upn; 1621 1622 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); 1623 unlink(upn->pid_file_realpath); 1624 } 1625 1626 static const QEMUOption *lookup_opt(int argc, char **argv, 1627 const char **poptarg, int *poptind) 1628 { 1629 const QEMUOption *popt; 1630 int optind = *poptind; 1631 char *r = argv[optind]; 1632 const char *optarg; 1633 1634 loc_set_cmdline(argv, optind, 1); 1635 optind++; 1636 /* Treat --foo the same as -foo. */ 1637 if (r[1] == '-') 1638 r++; 1639 popt = qemu_options; 1640 for(;;) { 1641 if (!popt->name) { 1642 error_report("invalid option"); 1643 exit(1); 1644 } 1645 if (!strcmp(popt->name, r + 1)) 1646 break; 1647 popt++; 1648 } 1649 if (popt->flags & HAS_ARG) { 1650 if (optind >= argc) { 1651 error_report("requires an argument"); 1652 exit(1); 1653 } 1654 optarg = argv[optind++]; 1655 loc_set_cmdline(argv, optind - 2, 2); 1656 } else { 1657 optarg = NULL; 1658 } 1659 1660 *poptarg = optarg; 1661 *poptind = optind; 1662 1663 return popt; 1664 } 1665 1666 static MachineClass *select_machine(QDict *qdict, Error **errp) 1667 { 1668 const char *machine_type = qdict_get_try_str(qdict, "type"); 1669 GSList *machines = object_class_get_list(TYPE_MACHINE, false); 1670 MachineClass *machine_class; 1671 Error *local_err = NULL; 1672 1673 if (machine_type) { 1674 machine_class = find_machine(machine_type, machines); 1675 qdict_del(qdict, "type"); 1676 if (!machine_class) { 1677 error_setg(&local_err, "unsupported machine type"); 1678 } 1679 } else { 1680 machine_class = find_default_machine(machines); 1681 if (!machine_class) { 1682 error_setg(&local_err, "No machine specified, and there is no default"); 1683 } 1684 } 1685 1686 g_slist_free(machines); 1687 if (local_err) { 1688 error_append_hint(&local_err, "Use -machine help to list supported machines\n"); 1689 error_propagate(errp, local_err); 1690 } 1691 return machine_class; 1692 } 1693 1694 static int object_parse_property_opt(Object *obj, 1695 const char *name, const char *value, 1696 const char *skip, Error **errp) 1697 { 1698 if (g_str_equal(name, skip)) { 1699 return 0; 1700 } 1701 1702 if (!object_property_parse(obj, name, value, errp)) { 1703 return -1; 1704 } 1705 1706 return 0; 1707 } 1708 1709 /* *Non*recursively replace underscores with dashes in QDict keys. */ 1710 static void keyval_dashify(QDict *qdict, Error **errp) 1711 { 1712 const QDictEntry *ent, *next; 1713 char *p; 1714 1715 for (ent = qdict_first(qdict); ent; ent = next) { 1716 g_autofree char *new_key = NULL; 1717 1718 next = qdict_next(qdict, ent); 1719 if (!strchr(ent->key, '_')) { 1720 continue; 1721 } 1722 new_key = g_strdup(ent->key); 1723 for (p = new_key; *p; p++) { 1724 if (*p == '_') { 1725 *p = '-'; 1726 } 1727 } 1728 if (qdict_haskey(qdict, new_key)) { 1729 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); 1730 return; 1731 } 1732 qobject_ref(ent->value); 1733 qdict_put_obj(qdict, new_key, ent->value); 1734 qdict_del(qdict, ent->key); 1735 } 1736 } 1737 1738 static void qemu_apply_legacy_machine_options(QDict *qdict) 1739 { 1740 const char *value; 1741 QObject *prop; 1742 1743 keyval_dashify(qdict, &error_fatal); 1744 1745 /* Legacy options do not correspond to MachineState properties. */ 1746 value = qdict_get_try_str(qdict, "accel"); 1747 if (value) { 1748 accelerators = g_strdup(value); 1749 qdict_del(qdict, "accel"); 1750 } 1751 1752 value = qdict_get_try_str(qdict, "igd-passthru"); 1753 if (value) { 1754 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, 1755 false); 1756 qdict_del(qdict, "igd-passthru"); 1757 } 1758 1759 value = qdict_get_try_str(qdict, "kvm-shadow-mem"); 1760 if (value) { 1761 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, 1762 false); 1763 qdict_del(qdict, "kvm-shadow-mem"); 1764 } 1765 1766 value = qdict_get_try_str(qdict, "kernel-irqchip"); 1767 if (value) { 1768 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, 1769 false); 1770 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, 1771 false); 1772 qdict_del(qdict, "kernel-irqchip"); 1773 } 1774 1775 value = qdict_get_try_str(qdict, "memory-backend"); 1776 if (value) { 1777 if (mem_path) { 1778 error_report("'-mem-path' can't be used together with" 1779 "'-machine memory-backend'"); 1780 exit(EXIT_FAILURE); 1781 } 1782 1783 /* Resolved later. */ 1784 ram_memdev_id = g_strdup(value); 1785 qdict_del(qdict, "memory-backend"); 1786 } 1787 1788 prop = qdict_get(qdict, "memory"); 1789 if (prop) { 1790 have_custom_ram_size = 1791 qobject_type(prop) == QTYPE_QDICT && 1792 qdict_haskey(qobject_to(QDict, prop), "size"); 1793 } 1794 } 1795 1796 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) 1797 { 1798 ObjectOption *opt, *next; 1799 1800 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { 1801 const char *type = ObjectType_str(opt->opts->qom_type); 1802 if (type_opt_predicate(type)) { 1803 user_creatable_add_qapi(opt->opts, &error_fatal); 1804 qapi_free_ObjectOptions(opt->opts); 1805 QTAILQ_REMOVE(&object_opts, opt, next); 1806 g_free(opt); 1807 } 1808 } 1809 } 1810 1811 static void object_option_add_visitor(Visitor *v) 1812 { 1813 ObjectOption *opt = g_new0(ObjectOption, 1); 1814 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); 1815 QTAILQ_INSERT_TAIL(&object_opts, opt, next); 1816 } 1817 1818 static void object_option_parse(const char *str) 1819 { 1820 QemuOpts *opts; 1821 const char *type; 1822 Visitor *v; 1823 1824 if (str[0] == '{') { 1825 QObject *obj = qobject_from_json(str, &error_fatal); 1826 1827 v = qobject_input_visitor_new(obj); 1828 qobject_unref(obj); 1829 } else { 1830 opts = qemu_opts_parse_noisily(qemu_find_opts("object"), 1831 str, true); 1832 if (!opts) { 1833 exit(1); 1834 } 1835 1836 type = qemu_opt_get(opts, "qom-type"); 1837 if (!type) { 1838 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type"); 1839 } 1840 if (user_creatable_print_help(type, opts)) { 1841 exit(0); 1842 } 1843 1844 v = opts_visitor_new(opts); 1845 } 1846 1847 object_option_add_visitor(v); 1848 visit_free(v); 1849 } 1850 1851 /* 1852 * Very early object creation, before the sandbox options have been activated. 1853 */ 1854 static bool object_create_pre_sandbox(const char *type) 1855 { 1856 /* 1857 * Objects should in general not get initialized "too early" without 1858 * a reason. If you add one, state the reason in a comment! 1859 */ 1860 1861 /* 1862 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU 1863 * affinity of threads. 1864 */ 1865 if (g_str_equal(type, "thread-context")) { 1866 return true; 1867 } 1868 1869 return false; 1870 } 1871 1872 /* 1873 * Initial object creation happens before all other 1874 * QEMU data types are created. The majority of objects 1875 * can be created at this point. The rng-egd object 1876 * cannot be created here, as it depends on the chardev 1877 * already existing. 1878 */ 1879 static bool object_create_early(const char *type) 1880 { 1881 /* 1882 * Objects should not be made "delayed" without a reason. If you 1883 * add one, state the reason in a comment! 1884 */ 1885 1886 /* Reason: already created. */ 1887 if (object_create_pre_sandbox(type)) { 1888 return false; 1889 } 1890 1891 /* Reason: property "chardev" */ 1892 if (g_str_equal(type, "rng-egd") || 1893 g_str_equal(type, "qtest")) { 1894 return false; 1895 } 1896 1897 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) 1898 /* Reason: cryptodev-vhost-user property "chardev" */ 1899 if (g_str_equal(type, "cryptodev-vhost-user")) { 1900 return false; 1901 } 1902 #endif 1903 1904 /* Reason: vhost-user-blk-server property "node-name" */ 1905 if (g_str_equal(type, "vhost-user-blk-server")) { 1906 return false; 1907 } 1908 /* 1909 * Reason: filter-* property "netdev" etc. 1910 */ 1911 if (g_str_equal(type, "filter-buffer") || 1912 g_str_equal(type, "filter-dump") || 1913 g_str_equal(type, "filter-mirror") || 1914 g_str_equal(type, "filter-redirector") || 1915 g_str_equal(type, "colo-compare") || 1916 g_str_equal(type, "filter-rewriter") || 1917 g_str_equal(type, "filter-replay")) { 1918 return false; 1919 } 1920 1921 /* 1922 * Allocation of large amounts of memory may delay 1923 * chardev initialization for too long, and trigger timeouts 1924 * on software that waits for a monitor socket to be created 1925 */ 1926 if (g_str_has_prefix(type, "memory-backend-")) { 1927 return false; 1928 } 1929 1930 return true; 1931 } 1932 1933 static void qemu_apply_machine_options(QDict *qdict) 1934 { 1935 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); 1936 1937 if (semihosting_enabled(false) && !semihosting_get_argc()) { 1938 /* fall back to the -kernel/-append */ 1939 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); 1940 } 1941 1942 if (current_machine->smp.cpus > 1) { 1943 replay_add_blocker("multiple CPUs"); 1944 } 1945 } 1946 1947 static void qemu_create_early_backends(void) 1948 { 1949 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1950 #if defined(CONFIG_SDL) 1951 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); 1952 #else 1953 const bool use_sdl = false; 1954 #endif 1955 #if defined(CONFIG_GTK) 1956 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); 1957 #else 1958 const bool use_gtk = false; 1959 #endif 1960 1961 if (dpy.has_window_close && !use_gtk && !use_sdl) { 1962 error_report("window-close is only valid for GTK and SDL, " 1963 "ignoring option"); 1964 } 1965 1966 qemu_console_early_init(); 1967 1968 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) { 1969 #if defined(CONFIG_OPENGL) 1970 error_report("OpenGL is not supported by the display"); 1971 #else 1972 error_report("OpenGL support is disabled"); 1973 #endif 1974 exit(1); 1975 } 1976 1977 object_option_foreach_add(object_create_early); 1978 1979 /* spice needs the timers to be initialized by this point */ 1980 /* spice must initialize before audio as it changes the default audiodev */ 1981 /* spice must initialize before chardevs (for spicevmc and spiceport) */ 1982 qemu_spice.init(); 1983 1984 qemu_opts_foreach(qemu_find_opts("chardev"), 1985 chardev_init_func, NULL, &error_fatal); 1986 1987 #ifdef CONFIG_VIRTFS 1988 qemu_opts_foreach(qemu_find_opts("fsdev"), 1989 fsdev_init_func, NULL, &error_fatal); 1990 #endif 1991 1992 /* 1993 * Note: we need to create audio and block backends before 1994 * setting machine properties, so they can be referred to. 1995 */ 1996 configure_blockdev(&bdo_queue, machine_class, snapshot); 1997 audio_init_audiodevs(); 1998 if (default_audio) { 1999 audio_create_default_audiodevs(); 2000 } 2001 } 2002 2003 2004 /* 2005 * The remainder of object creation happens after the 2006 * creation of chardev, fsdev, net clients and device data types. 2007 */ 2008 static bool object_create_late(const char *type) 2009 { 2010 return !object_create_early(type) && !object_create_pre_sandbox(type); 2011 } 2012 2013 static void qemu_create_late_backends(void) 2014 { 2015 if (qtest_chrdev) { 2016 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); 2017 } 2018 2019 net_init_clients(); 2020 2021 object_option_foreach_add(object_create_late); 2022 2023 /* 2024 * Wait for any outstanding memory prealloc from created memory 2025 * backends to complete. 2026 */ 2027 if (!qemu_finish_async_prealloc_mem(&error_fatal)) { 2028 exit(1); 2029 } 2030 2031 if (tpm_init() < 0) { 2032 exit(1); 2033 } 2034 2035 qemu_opts_foreach(qemu_find_opts("mon"), 2036 mon_init_func, NULL, &error_fatal); 2037 2038 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) 2039 exit(1); 2040 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) 2041 exit(1); 2042 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0) 2043 exit(1); 2044 2045 /* now chardevs have been created we may have semihosting to connect */ 2046 qemu_semihosting_chardev_init(); 2047 } 2048 2049 static void qemu_resolve_machine_memdev(void) 2050 { 2051 if (ram_memdev_id) { 2052 Object *backend; 2053 ram_addr_t backend_size; 2054 2055 backend = object_resolve_path_type(ram_memdev_id, 2056 TYPE_MEMORY_BACKEND, NULL); 2057 if (!backend) { 2058 error_report("Memory backend '%s' not found", ram_memdev_id); 2059 exit(EXIT_FAILURE); 2060 } 2061 if (!have_custom_ram_size) { 2062 backend_size = object_property_get_uint(backend, "size", &error_abort); 2063 current_machine->ram_size = backend_size; 2064 } 2065 object_property_set_link(OBJECT(current_machine), 2066 "memory-backend", backend, &error_fatal); 2067 } 2068 } 2069 2070 static void parse_memory_options(void) 2071 { 2072 QemuOpts *opts = qemu_find_opts_singleton("memory"); 2073 QDict *dict, *prop; 2074 const char *mem_str; 2075 Location loc; 2076 2077 loc_push_none(&loc); 2078 qemu_opts_loc_restore(opts); 2079 2080 prop = qdict_new(); 2081 2082 if (qemu_opt_get_size(opts, "size", 0) != 0) { 2083 /* Fix up legacy suffix-less format */ 2084 mem_str = qemu_opt_get(opts, "size"); 2085 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { 2086 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); 2087 qdict_put_str(prop, "size", mib_str); 2088 } else { 2089 qdict_put_str(prop, "size", mem_str); 2090 } 2091 } 2092 2093 if (qemu_opt_get(opts, "maxmem")) { 2094 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); 2095 } 2096 if (qemu_opt_get(opts, "slots")) { 2097 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); 2098 } 2099 2100 dict = qdict_new(); 2101 qdict_put(dict, "memory", prop); 2102 keyval_merge(machine_opts_dict, dict, &error_fatal); 2103 qobject_unref(dict); 2104 loc_pop(&loc); 2105 } 2106 2107 static void qemu_create_machine(QDict *qdict) 2108 { 2109 MachineClass *machine_class = select_machine(qdict, &error_fatal); 2110 object_set_machine_compat_props(machine_class->compat_props); 2111 2112 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); 2113 object_property_add_child(object_get_root(), "machine", 2114 OBJECT(current_machine)); 2115 object_property_add_child(container_get(OBJECT(current_machine), 2116 "/unattached"), 2117 "sysbus", OBJECT(sysbus_get_default())); 2118 2119 if (machine_class->minimum_page_bits) { 2120 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { 2121 /* This would be a board error: specifying a minimum smaller than 2122 * a target's compile-time fixed setting. 2123 */ 2124 g_assert_not_reached(); 2125 } 2126 } 2127 2128 cpu_exec_init_all(); 2129 2130 if (machine_class->hw_version) { 2131 qemu_set_hw_version(machine_class->hw_version); 2132 } 2133 2134 /* 2135 * Get the default machine options from the machine if it is not already 2136 * specified either by the configuration file or by the command line. 2137 */ 2138 if (machine_class->default_machine_opts) { 2139 QDict *default_opts = 2140 keyval_parse(machine_class->default_machine_opts, NULL, NULL, 2141 &error_abort); 2142 qemu_apply_legacy_machine_options(default_opts); 2143 object_set_properties_from_keyval(OBJECT(current_machine), default_opts, 2144 false, &error_abort); 2145 qobject_unref(default_opts); 2146 } 2147 } 2148 2149 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) 2150 { 2151 GlobalProperty *g; 2152 2153 g = g_malloc0(sizeof(*g)); 2154 g->driver = qemu_opt_get(opts, "driver"); 2155 g->property = qemu_opt_get(opts, "property"); 2156 g->value = qemu_opt_get(opts, "value"); 2157 qdev_prop_register_global(g); 2158 return 0; 2159 } 2160 2161 /* 2162 * Return whether configuration group @group is stored in QemuOpts, or 2163 * recorded as one or more QDicts by qemu_record_config_group. 2164 */ 2165 static bool is_qemuopts_group(const char *group) 2166 { 2167 if (g_str_equal(group, "object") || 2168 g_str_equal(group, "audiodev") || 2169 g_str_equal(group, "machine") || 2170 g_str_equal(group, "smp-opts") || 2171 g_str_equal(group, "boot-opts")) { 2172 return false; 2173 } 2174 return true; 2175 } 2176 2177 static void qemu_record_config_group(const char *group, QDict *dict, 2178 bool from_json, Error **errp) 2179 { 2180 if (g_str_equal(group, "object")) { 2181 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2182 object_option_add_visitor(v); 2183 visit_free(v); 2184 2185 } else if (g_str_equal(group, "audiodev")) { 2186 Audiodev *dev = NULL; 2187 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2188 if (visit_type_Audiodev(v, NULL, &dev, errp)) { 2189 audio_define(dev); 2190 } 2191 visit_free(v); 2192 2193 } else if (g_str_equal(group, "machine")) { 2194 /* 2195 * Cannot merge string-valued and type-safe dictionaries, so JSON 2196 * is not accepted yet for -M. 2197 */ 2198 assert(!from_json); 2199 keyval_merge(machine_opts_dict, dict, errp); 2200 } else if (g_str_equal(group, "smp-opts")) { 2201 machine_merge_property("smp", dict, &error_fatal); 2202 } else if (g_str_equal(group, "boot-opts")) { 2203 machine_merge_property("boot", dict, &error_fatal); 2204 } else { 2205 abort(); 2206 } 2207 } 2208 2209 /* 2210 * Parse non-QemuOpts config file groups, pass the rest to 2211 * qemu_config_do_parse. 2212 */ 2213 static void qemu_parse_config_group(const char *group, QDict *qdict, 2214 void *opaque, Error **errp) 2215 { 2216 QObject *crumpled; 2217 if (is_qemuopts_group(group)) { 2218 qemu_config_do_parse(group, qdict, opaque, errp); 2219 return; 2220 } 2221 2222 crumpled = qdict_crumple(qdict, errp); 2223 if (!crumpled) { 2224 return; 2225 } 2226 switch (qobject_type(crumpled)) { 2227 case QTYPE_QDICT: 2228 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); 2229 break; 2230 case QTYPE_QLIST: 2231 error_setg(errp, "Lists cannot be at top level of a configuration section"); 2232 break; 2233 default: 2234 g_assert_not_reached(); 2235 } 2236 qobject_unref(crumpled); 2237 } 2238 2239 static void qemu_read_default_config_file(Error **errp) 2240 { 2241 ERRP_GUARD(); 2242 int ret; 2243 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); 2244 2245 ret = qemu_read_config_file(file, qemu_parse_config_group, errp); 2246 if (ret < 0) { 2247 if (ret == -ENOENT) { 2248 error_free(*errp); 2249 *errp = NULL; 2250 } 2251 } 2252 } 2253 2254 static void qemu_set_option(const char *str, Error **errp) 2255 { 2256 char group[64], id[64], arg[64]; 2257 QemuOptsList *list; 2258 QemuOpts *opts; 2259 int rc, offset; 2260 2261 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); 2262 if (rc < 3 || str[offset] != '=') { 2263 error_setg(errp, "can't parse: \"%s\"", str); 2264 return; 2265 } 2266 2267 if (!is_qemuopts_group(group)) { 2268 error_setg(errp, "-set is not supported with %s", group); 2269 } else { 2270 list = qemu_find_opts_err(group, errp); 2271 if (list) { 2272 opts = qemu_opts_find(list, id); 2273 if (!opts) { 2274 error_setg(errp, "there is no %s \"%s\" defined", group, id); 2275 return; 2276 } 2277 qemu_opt_set(opts, arg, str + offset + 1, errp); 2278 } 2279 } 2280 } 2281 2282 static void user_register_global_props(void) 2283 { 2284 qemu_opts_foreach(qemu_find_opts("global"), 2285 global_init_func, NULL, NULL); 2286 } 2287 2288 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) 2289 { 2290 return !icount_configure(opts, errp); 2291 } 2292 2293 static int accelerator_set_property(void *opaque, 2294 const char *name, const char *value, 2295 Error **errp) 2296 { 2297 return object_parse_property_opt(opaque, name, value, "accel", errp); 2298 } 2299 2300 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) 2301 { 2302 bool *p_init_failed = opaque; 2303 const char *acc = qemu_opt_get(opts, "accel"); 2304 AccelClass *ac = accel_find(acc); 2305 AccelState *accel; 2306 int ret; 2307 bool qtest_with_kvm; 2308 2309 if (!acc) { 2310 error_setg(errp, QERR_MISSING_PARAMETER, "accel"); 2311 goto bad; 2312 } 2313 2314 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; 2315 2316 if (!ac) { 2317 if (!qtest_with_kvm) { 2318 error_report("invalid accelerator %s", acc); 2319 } 2320 goto bad; 2321 } 2322 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); 2323 object_apply_compat_props(OBJECT(accel)); 2324 qemu_opt_foreach(opts, accelerator_set_property, 2325 accel, 2326 &error_fatal); 2327 2328 ret = accel_init_machine(accel, current_machine); 2329 if (ret < 0) { 2330 if (!qtest_with_kvm || ret != -ENOENT) { 2331 error_report("failed to initialize %s: %s", acc, strerror(-ret)); 2332 } 2333 goto bad; 2334 } 2335 2336 return 1; 2337 2338 bad: 2339 *p_init_failed = true; 2340 return 0; 2341 } 2342 2343 static void configure_accelerators(const char *progname) 2344 { 2345 bool init_failed = false; 2346 2347 qemu_opts_foreach(qemu_find_opts("icount"), 2348 do_configure_icount, NULL, &error_fatal); 2349 2350 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { 2351 char **accel_list, **tmp; 2352 2353 if (accelerators == NULL) { 2354 /* Select the default accelerator */ 2355 bool have_tcg = accel_find("tcg"); 2356 bool have_kvm = accel_find("kvm"); 2357 2358 if (have_tcg && have_kvm) { 2359 if (g_str_has_suffix(progname, "kvm")) { 2360 /* If the program name ends with "kvm", we prefer KVM */ 2361 accelerators = "kvm:tcg"; 2362 } else { 2363 accelerators = "tcg:kvm"; 2364 } 2365 } else if (have_kvm) { 2366 accelerators = "kvm"; 2367 } else if (have_tcg) { 2368 accelerators = "tcg"; 2369 } else { 2370 error_report("No accelerator selected and" 2371 " no default accelerator available"); 2372 exit(1); 2373 } 2374 } 2375 accel_list = g_strsplit(accelerators, ":", 0); 2376 2377 for (tmp = accel_list; *tmp; tmp++) { 2378 /* 2379 * Filter invalid accelerators here, to prevent obscenities 2380 * such as "-machine accel=tcg,,thread=single". 2381 */ 2382 if (accel_find(*tmp)) { 2383 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); 2384 } else { 2385 init_failed = true; 2386 error_report("invalid accelerator %s", *tmp); 2387 } 2388 } 2389 g_strfreev(accel_list); 2390 } else { 2391 if (accelerators != NULL) { 2392 error_report("The -accel and \"-machine accel=\" options are incompatible"); 2393 exit(1); 2394 } 2395 } 2396 2397 if (!qemu_opts_foreach(qemu_find_opts("accel"), 2398 do_configure_accelerator, &init_failed, &error_fatal)) { 2399 if (!init_failed) { 2400 error_report("no accelerator found"); 2401 } 2402 exit(1); 2403 } 2404 2405 if (init_failed && !qtest_chrdev) { 2406 error_report("falling back to %s", current_accel_name()); 2407 } 2408 2409 if (icount_enabled() && !tcg_enabled()) { 2410 error_report("-icount is not allowed with hardware virtualization"); 2411 exit(1); 2412 } 2413 } 2414 2415 static void qemu_validate_options(const QDict *machine_opts) 2416 { 2417 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); 2418 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); 2419 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); 2420 2421 if (kernel_filename == NULL) { 2422 if (kernel_cmdline != NULL) { 2423 error_report("-append only allowed with -kernel option"); 2424 exit(1); 2425 } 2426 2427 if (initrd_filename != NULL) { 2428 error_report("-initrd only allowed with -kernel option"); 2429 exit(1); 2430 } 2431 } 2432 2433 if (loadvm && incoming) { 2434 error_report("'incoming' and 'loadvm' options are mutually exclusive"); 2435 exit(EXIT_FAILURE); 2436 } 2437 if (loadvm && preconfig_requested) { 2438 error_report("'preconfig' and 'loadvm' options are " 2439 "mutually exclusive"); 2440 exit(EXIT_FAILURE); 2441 } 2442 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { 2443 error_report("'preconfig' supports '-incoming defer' only"); 2444 exit(EXIT_FAILURE); 2445 } 2446 2447 #ifdef CONFIG_CURSES 2448 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { 2449 error_report("curses display cannot be used with -daemonize"); 2450 exit(1); 2451 } 2452 #endif 2453 } 2454 2455 static void qemu_process_sugar_options(void) 2456 { 2457 if (mem_prealloc) { 2458 QObject *smp = qdict_get(machine_opts_dict, "smp"); 2459 if (smp && qobject_type(smp) == QTYPE_QDICT) { 2460 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); 2461 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { 2462 const char *val = qstring_get_str(qobject_to(QString, cpus)); 2463 object_register_sugar_prop("memory-backend", "prealloc-threads", 2464 val, false); 2465 } 2466 } 2467 object_register_sugar_prop("memory-backend", "prealloc", "on", false); 2468 } 2469 } 2470 2471 /* -action processing */ 2472 2473 /* 2474 * Process all the -action parameters parsed from cmdline. 2475 */ 2476 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) 2477 { 2478 Error *local_err = NULL; 2479 QDict *qdict = qemu_opts_to_qdict(opts, NULL); 2480 QObject *ret = NULL; 2481 qmp_marshal_set_action(qdict, &ret, &local_err); 2482 qobject_unref(ret); 2483 qobject_unref(qdict); 2484 if (local_err) { 2485 error_propagate(errp, local_err); 2486 return 1; 2487 } 2488 return 0; 2489 } 2490 2491 static void qemu_process_early_options(void) 2492 { 2493 qemu_opts_foreach(qemu_find_opts("name"), 2494 parse_name, NULL, &error_fatal); 2495 2496 object_option_foreach_add(object_create_pre_sandbox); 2497 2498 #ifdef CONFIG_SECCOMP 2499 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); 2500 if (olist) { 2501 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); 2502 } 2503 #endif 2504 2505 if (qemu_opts_foreach(qemu_find_opts("action"), 2506 process_runstate_actions, NULL, &error_fatal)) { 2507 exit(1); 2508 } 2509 2510 #ifndef _WIN32 2511 qemu_opts_foreach(qemu_find_opts("add-fd"), 2512 parse_add_fd, NULL, &error_fatal); 2513 2514 qemu_opts_foreach(qemu_find_opts("add-fd"), 2515 cleanup_add_fd, NULL, &error_fatal); 2516 #endif 2517 2518 /* Open the logfile at this point and set the log mask if necessary. */ 2519 { 2520 int mask = 0; 2521 if (log_mask) { 2522 mask = qemu_str_to_log_mask(log_mask); 2523 if (!mask) { 2524 qemu_print_log_usage(stdout); 2525 exit(1); 2526 } 2527 } 2528 qemu_set_log_filename_flags(log_file, mask, &error_fatal); 2529 } 2530 2531 qemu_add_default_firmwarepath(); 2532 } 2533 2534 static void qemu_process_help_options(void) 2535 { 2536 /* 2537 * Check for -cpu help and -device help before we call select_machine(), 2538 * which will return an error if the architecture has no default machine 2539 * type and the user did not specify one, so that the user doesn't need 2540 * to say '-cpu help -machine something'. 2541 */ 2542 if (cpu_option && is_help_option(cpu_option)) { 2543 list_cpus(); 2544 exit(0); 2545 } 2546 2547 if (qemu_opts_foreach(qemu_find_opts("device"), 2548 device_help_func, NULL, NULL)) { 2549 exit(0); 2550 } 2551 2552 /* -L help lists the data directories and exits. */ 2553 if (list_data_dirs) { 2554 qemu_list_data_dirs(); 2555 exit(0); 2556 } 2557 } 2558 2559 static void qemu_maybe_daemonize(const char *pid_file) 2560 { 2561 Error *err = NULL; 2562 2563 os_daemonize(); 2564 rcu_disable_atfork(); 2565 2566 if (pid_file) { 2567 char *pid_file_realpath = NULL; 2568 2569 if (!qemu_write_pidfile(pid_file, &err)) { 2570 error_reportf_err(err, "cannot create PID file: "); 2571 exit(1); 2572 } 2573 2574 pid_file_realpath = g_malloc0(PATH_MAX); 2575 if (!realpath(pid_file, pid_file_realpath)) { 2576 if (errno != ENOENT) { 2577 warn_report("not removing PID file on exit: cannot resolve PID " 2578 "file path: %s: %s", pid_file, strerror(errno)); 2579 } 2580 return; 2581 } 2582 2583 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { 2584 .notifier = { 2585 .notify = qemu_unlink_pidfile, 2586 }, 2587 .pid_file_realpath = pid_file_realpath, 2588 }; 2589 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); 2590 } 2591 } 2592 2593 static void qemu_init_displays(void) 2594 { 2595 DisplayState *ds; 2596 2597 /* init local displays */ 2598 ds = init_displaystate(); 2599 qemu_display_init(ds, &dpy); 2600 2601 /* must be after terminal init, SDL library changes signal handlers */ 2602 os_setup_signal_handling(); 2603 2604 /* init remote displays */ 2605 #ifdef CONFIG_VNC 2606 qemu_opts_foreach(qemu_find_opts("vnc"), 2607 vnc_init_func, NULL, &error_fatal); 2608 #endif 2609 2610 if (using_spice) { 2611 qemu_spice.display_init(); 2612 } 2613 } 2614 2615 static void qemu_init_board(void) 2616 { 2617 /* process plugin before CPUs are created, but once -smp has been parsed */ 2618 qemu_plugin_load_list(&plugin_list, &error_fatal); 2619 2620 /* From here on we enter MACHINE_PHASE_INITIALIZED. */ 2621 machine_run_board_init(current_machine, mem_path, &error_fatal); 2622 2623 drive_check_orphaned(); 2624 2625 realtime_init(); 2626 } 2627 2628 static void qemu_create_cli_devices(void) 2629 { 2630 DeviceOption *opt; 2631 2632 soundhw_init(); 2633 2634 qemu_opts_foreach(qemu_find_opts("fw_cfg"), 2635 parse_fw_cfg, fw_cfg_find(), &error_fatal); 2636 2637 /* init USB devices */ 2638 if (machine_usb(current_machine)) { 2639 if (foreach_device_config(DEV_USB, usb_parse) < 0) 2640 exit(1); 2641 } 2642 2643 /* init generic devices */ 2644 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); 2645 qemu_opts_foreach(qemu_find_opts("device"), 2646 device_init_func, NULL, &error_fatal); 2647 QTAILQ_FOREACH(opt, &device_opts, next) { 2648 DeviceState *dev; 2649 loc_push_restore(&opt->loc); 2650 /* 2651 * TODO Eventually we should call qmp_device_add() here to make sure it 2652 * behaves the same, but QMP still has to accept incorrectly typed 2653 * options until libvirt is fixed and we want to be strict on the CLI 2654 * from the start, so call qdev_device_add_from_qdict() directly for 2655 * now. 2656 */ 2657 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal); 2658 object_unref(OBJECT(dev)); 2659 loc_pop(&opt->loc); 2660 } 2661 rom_reset_order_override(); 2662 } 2663 2664 static bool qemu_machine_creation_done(Error **errp) 2665 { 2666 MachineState *machine = MACHINE(qdev_get_machine()); 2667 2668 /* Did we create any drives that we failed to create a device for? */ 2669 drive_check_orphaned(); 2670 2671 /* Don't warn about the default network setup that you get if 2672 * no command line -net or -netdev options are specified. There 2673 * are two cases that we would otherwise complain about: 2674 * (1) board doesn't support a NIC but the implicit "-net nic" 2675 * requested one 2676 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" 2677 * sets up a nic that isn't connected to anything. 2678 */ 2679 if (!default_net && (!qtest_enabled() || has_defaults)) { 2680 net_check_clients(); 2681 } 2682 2683 qdev_prop_check_globals(); 2684 2685 qdev_machine_creation_done(); 2686 2687 if (machine->cgs && !machine->cgs->ready) { 2688 error_setg(errp, "accelerator does not support confidential guest %s", 2689 object_get_typename(OBJECT(machine->cgs))); 2690 exit(1); 2691 } 2692 2693 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { 2694 error_setg(errp, "could not start gdbserver"); 2695 return false; 2696 } 2697 if (!vga_interface_created && !default_vga && 2698 vga_interface_type != VGA_NONE) { 2699 warn_report("A -vga option was passed but this machine " 2700 "type does not use that option; " 2701 "No VGA device has been created"); 2702 } 2703 return true; 2704 } 2705 2706 void qmp_x_exit_preconfig(Error **errp) 2707 { 2708 if (phase_check(PHASE_MACHINE_INITIALIZED)) { 2709 error_setg(errp, "The command is permitted only before machine initialization"); 2710 return; 2711 } 2712 2713 qemu_init_board(); 2714 qemu_create_cli_devices(); 2715 if (!qemu_machine_creation_done(errp)) { 2716 return; 2717 } 2718 2719 if (loadvm) { 2720 RunState state = autostart ? RUN_STATE_RUNNING : runstate_get(); 2721 load_snapshot(loadvm, NULL, false, NULL, &error_fatal); 2722 load_snapshot_resume(state); 2723 } 2724 if (replay_mode != REPLAY_MODE_NONE) { 2725 replay_vmstate_init(); 2726 } 2727 2728 if (incoming) { 2729 Error *local_err = NULL; 2730 if (strcmp(incoming, "defer") != 0) { 2731 qmp_migrate_incoming(incoming, false, NULL, true, true, 2732 &local_err); 2733 if (local_err) { 2734 error_reportf_err(local_err, "-incoming %s: ", incoming); 2735 exit(1); 2736 } 2737 } 2738 } else if (autostart) { 2739 qmp_cont(NULL); 2740 } 2741 } 2742 2743 void qemu_init(int argc, char **argv) 2744 { 2745 QemuOpts *opts; 2746 QemuOpts *icount_opts = NULL, *accel_opts = NULL; 2747 QemuOptsList *olist; 2748 int optind; 2749 const char *optarg; 2750 MachineClass *machine_class; 2751 bool userconfig = true; 2752 FILE *vmstate_dump_file = NULL; 2753 2754 qemu_add_opts(&qemu_drive_opts); 2755 qemu_add_drive_opts(&qemu_legacy_drive_opts); 2756 qemu_add_drive_opts(&qemu_common_drive_opts); 2757 qemu_add_drive_opts(&qemu_drive_opts); 2758 qemu_add_drive_opts(&bdrv_runtime_opts); 2759 qemu_add_opts(&qemu_chardev_opts); 2760 qemu_add_opts(&qemu_device_opts); 2761 qemu_add_opts(&qemu_netdev_opts); 2762 qemu_add_opts(&qemu_nic_opts); 2763 qemu_add_opts(&qemu_net_opts); 2764 qemu_add_opts(&qemu_rtc_opts); 2765 qemu_add_opts(&qemu_global_opts); 2766 qemu_add_opts(&qemu_mon_opts); 2767 qemu_add_opts(&qemu_trace_opts); 2768 qemu_plugin_add_opts(); 2769 qemu_add_opts(&qemu_option_rom_opts); 2770 qemu_add_opts(&qemu_accel_opts); 2771 qemu_add_opts(&qemu_mem_opts); 2772 qemu_add_opts(&qemu_smp_opts); 2773 qemu_add_opts(&qemu_boot_opts); 2774 qemu_add_opts(&qemu_add_fd_opts); 2775 qemu_add_opts(&qemu_object_opts); 2776 qemu_add_opts(&qemu_tpmdev_opts); 2777 qemu_add_opts(&qemu_overcommit_opts); 2778 qemu_add_opts(&qemu_msg_opts); 2779 qemu_add_opts(&qemu_name_opts); 2780 qemu_add_opts(&qemu_numa_opts); 2781 qemu_add_opts(&qemu_icount_opts); 2782 qemu_add_opts(&qemu_semihosting_config_opts); 2783 qemu_add_opts(&qemu_fw_cfg_opts); 2784 qemu_add_opts(&qemu_action_opts); 2785 qemu_add_run_with_opts(); 2786 module_call_init(MODULE_INIT_OPTS); 2787 2788 error_init(argv[0]); 2789 qemu_init_exec_dir(argv[0]); 2790 2791 os_setup_limits(); 2792 2793 qemu_init_arch_modules(); 2794 2795 qemu_init_subsystems(); 2796 2797 /* first pass of option parsing */ 2798 optind = 1; 2799 while (optind < argc) { 2800 if (argv[optind][0] != '-') { 2801 /* disk image */ 2802 optind++; 2803 } else { 2804 const QEMUOption *popt; 2805 2806 popt = lookup_opt(argc, argv, &optarg, &optind); 2807 switch (popt->index) { 2808 case QEMU_OPTION_nouserconfig: 2809 userconfig = false; 2810 break; 2811 } 2812 } 2813 } 2814 2815 machine_opts_dict = qdict_new(); 2816 if (userconfig) { 2817 qemu_read_default_config_file(&error_fatal); 2818 } 2819 2820 /* second pass of option parsing */ 2821 optind = 1; 2822 for(;;) { 2823 if (optind >= argc) 2824 break; 2825 if (argv[optind][0] != '-') { 2826 loc_set_cmdline(argv, optind, 1); 2827 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); 2828 } else { 2829 const QEMUOption *popt; 2830 2831 popt = lookup_opt(argc, argv, &optarg, &optind); 2832 if (!(popt->arch_mask & arch_type)) { 2833 error_report("Option not supported for this target"); 2834 exit(1); 2835 } 2836 switch(popt->index) { 2837 case QEMU_OPTION_cpu: 2838 /* hw initialization will check this */ 2839 cpu_option = optarg; 2840 break; 2841 case QEMU_OPTION_hda: 2842 case QEMU_OPTION_hdb: 2843 case QEMU_OPTION_hdc: 2844 case QEMU_OPTION_hdd: 2845 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, 2846 HD_OPTS); 2847 break; 2848 case QEMU_OPTION_blockdev: 2849 { 2850 Visitor *v; 2851 BlockdevOptionsQueueEntry *bdo; 2852 2853 v = qobject_input_visitor_new_str(optarg, "driver", 2854 &error_fatal); 2855 2856 bdo = g_new(BlockdevOptionsQueueEntry, 1); 2857 visit_type_BlockdevOptions(v, NULL, &bdo->bdo, 2858 &error_fatal); 2859 visit_free(v); 2860 loc_save(&bdo->loc); 2861 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); 2862 break; 2863 } 2864 case QEMU_OPTION_drive: 2865 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), 2866 optarg, false); 2867 if (opts == NULL) { 2868 exit(1); 2869 } 2870 break; 2871 case QEMU_OPTION_set: 2872 qemu_set_option(optarg, &error_fatal); 2873 break; 2874 case QEMU_OPTION_global: 2875 if (qemu_global_option(optarg) != 0) 2876 exit(1); 2877 break; 2878 case QEMU_OPTION_mtdblock: 2879 drive_add(IF_MTD, -1, optarg, MTD_OPTS); 2880 break; 2881 case QEMU_OPTION_sd: 2882 drive_add(IF_SD, -1, optarg, SD_OPTS); 2883 break; 2884 case QEMU_OPTION_pflash: 2885 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); 2886 break; 2887 case QEMU_OPTION_snapshot: 2888 snapshot = 1; 2889 replay_add_blocker("-snapshot"); 2890 break; 2891 case QEMU_OPTION_numa: 2892 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), 2893 optarg, true); 2894 if (!opts) { 2895 exit(1); 2896 } 2897 break; 2898 case QEMU_OPTION_display: 2899 parse_display(optarg); 2900 break; 2901 case QEMU_OPTION_nographic: 2902 qdict_put_str(machine_opts_dict, "graphics", "off"); 2903 nographic = true; 2904 dpy.type = DISPLAY_TYPE_NONE; 2905 break; 2906 case QEMU_OPTION_portrait: 2907 graphic_rotate = 90; 2908 break; 2909 case QEMU_OPTION_rotate: 2910 graphic_rotate = strtol(optarg, (char **) &optarg, 10); 2911 if (graphic_rotate != 0 && graphic_rotate != 90 && 2912 graphic_rotate != 180 && graphic_rotate != 270) { 2913 error_report("only 90, 180, 270 deg rotation is available"); 2914 exit(1); 2915 } 2916 break; 2917 case QEMU_OPTION_kernel: 2918 qdict_put_str(machine_opts_dict, "kernel", optarg); 2919 break; 2920 case QEMU_OPTION_initrd: 2921 qdict_put_str(machine_opts_dict, "initrd", optarg); 2922 break; 2923 case QEMU_OPTION_append: 2924 qdict_put_str(machine_opts_dict, "append", optarg); 2925 break; 2926 case QEMU_OPTION_dtb: 2927 qdict_put_str(machine_opts_dict, "dtb", optarg); 2928 break; 2929 case QEMU_OPTION_cdrom: 2930 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); 2931 break; 2932 case QEMU_OPTION_boot: 2933 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); 2934 break; 2935 case QEMU_OPTION_fda: 2936 case QEMU_OPTION_fdb: 2937 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, 2938 optarg, FD_OPTS); 2939 break; 2940 case QEMU_OPTION_no_fd_bootchk: 2941 qdict_put_str(machine_opts_dict, "fd-bootchk", "off"); 2942 break; 2943 case QEMU_OPTION_netdev: 2944 default_net = 0; 2945 if (netdev_is_modern(optarg)) { 2946 netdev_parse_modern(optarg); 2947 } else { 2948 net_client_parse(qemu_find_opts("netdev"), optarg); 2949 } 2950 break; 2951 case QEMU_OPTION_nic: 2952 default_net = 0; 2953 net_client_parse(qemu_find_opts("nic"), optarg); 2954 break; 2955 case QEMU_OPTION_net: 2956 default_net = 0; 2957 net_client_parse(qemu_find_opts("net"), optarg); 2958 break; 2959 #ifdef CONFIG_LIBISCSI 2960 case QEMU_OPTION_iscsi: 2961 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), 2962 optarg, false); 2963 if (!opts) { 2964 exit(1); 2965 } 2966 break; 2967 #endif 2968 case QEMU_OPTION_audiodev: 2969 default_audio = 0; 2970 audio_parse_option(optarg); 2971 break; 2972 case QEMU_OPTION_audio: { 2973 bool help; 2974 char *model = NULL; 2975 Audiodev *dev = NULL; 2976 Visitor *v; 2977 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); 2978 default_audio = 0; 2979 if (help || (qdict_haskey(dict, "driver") && 2980 is_help_option(qdict_get_str(dict, "driver")))) { 2981 audio_help(); 2982 exit(EXIT_SUCCESS); 2983 } 2984 if (!qdict_haskey(dict, "id")) { 2985 qdict_put_str(dict, "id", "audiodev0"); 2986 } 2987 if (qdict_haskey(dict, "model")) { 2988 model = g_strdup(qdict_get_str(dict, "model")); 2989 qdict_del(dict, "model"); 2990 if (is_help_option(model)) { 2991 show_valid_soundhw(); 2992 exit(0); 2993 } 2994 } 2995 v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2996 qobject_unref(dict); 2997 visit_type_Audiodev(v, NULL, &dev, &error_fatal); 2998 visit_free(v); 2999 if (model) { 3000 audio_define(dev); 3001 select_soundhw(model, dev->id); 3002 g_free(model); 3003 } else { 3004 audio_define_default(dev, &error_fatal); 3005 } 3006 break; 3007 } 3008 case QEMU_OPTION_h: 3009 help(0); 3010 break; 3011 case QEMU_OPTION_version: 3012 version(); 3013 exit(0); 3014 break; 3015 case QEMU_OPTION_m: 3016 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); 3017 if (opts == NULL) { 3018 exit(1); 3019 } 3020 break; 3021 #ifdef CONFIG_TPM 3022 case QEMU_OPTION_tpmdev: 3023 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { 3024 exit(1); 3025 } 3026 break; 3027 #endif 3028 case QEMU_OPTION_mempath: 3029 mem_path = optarg; 3030 break; 3031 case QEMU_OPTION_mem_prealloc: 3032 mem_prealloc = 1; 3033 break; 3034 case QEMU_OPTION_d: 3035 log_mask = optarg; 3036 break; 3037 case QEMU_OPTION_D: 3038 log_file = optarg; 3039 break; 3040 case QEMU_OPTION_DFILTER: 3041 qemu_set_dfilter_ranges(optarg, &error_fatal); 3042 break; 3043 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) 3044 case QEMU_OPTION_perfmap: 3045 perf_enable_perfmap(); 3046 break; 3047 case QEMU_OPTION_jitdump: 3048 perf_enable_jitdump(); 3049 break; 3050 #endif 3051 case QEMU_OPTION_seed: 3052 qemu_guest_random_seed_main(optarg, &error_fatal); 3053 break; 3054 case QEMU_OPTION_s: 3055 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); 3056 break; 3057 case QEMU_OPTION_gdb: 3058 add_device_config(DEV_GDB, optarg); 3059 break; 3060 case QEMU_OPTION_L: 3061 if (is_help_option(optarg)) { 3062 list_data_dirs = true; 3063 } else { 3064 qemu_add_data_dir(g_strdup(optarg)); 3065 } 3066 break; 3067 case QEMU_OPTION_bios: 3068 qdict_put_str(machine_opts_dict, "firmware", optarg); 3069 break; 3070 case QEMU_OPTION_S: 3071 autostart = 0; 3072 break; 3073 case QEMU_OPTION_k: 3074 keyboard_layout = optarg; 3075 break; 3076 case QEMU_OPTION_vga: 3077 vga_model = optarg; 3078 default_vga = 0; 3079 break; 3080 case QEMU_OPTION_g: 3081 { 3082 const char *p; 3083 int w, h, depth; 3084 p = optarg; 3085 w = strtol(p, (char **)&p, 10); 3086 if (w <= 0) { 3087 graphic_error: 3088 error_report("invalid resolution or depth"); 3089 exit(1); 3090 } 3091 if (*p != 'x') 3092 goto graphic_error; 3093 p++; 3094 h = strtol(p, (char **)&p, 10); 3095 if (h <= 0) 3096 goto graphic_error; 3097 if (*p == 'x') { 3098 p++; 3099 depth = strtol(p, (char **)&p, 10); 3100 if (depth != 1 && depth != 2 && depth != 4 && 3101 depth != 8 && depth != 15 && depth != 16 && 3102 depth != 24 && depth != 32) 3103 goto graphic_error; 3104 } else if (*p == '\0') { 3105 depth = graphic_depth; 3106 } else { 3107 goto graphic_error; 3108 } 3109 3110 graphic_width = w; 3111 graphic_height = h; 3112 graphic_depth = depth; 3113 } 3114 break; 3115 case QEMU_OPTION_echr: 3116 { 3117 char *r; 3118 term_escape_char = strtol(optarg, &r, 0); 3119 if (r == optarg) 3120 printf("Bad argument to echr\n"); 3121 break; 3122 } 3123 case QEMU_OPTION_monitor: 3124 default_monitor = 0; 3125 if (strncmp(optarg, "none", 4)) { 3126 monitor_parse(optarg, "readline", false); 3127 } 3128 break; 3129 case QEMU_OPTION_qmp: 3130 monitor_parse(optarg, "control", false); 3131 default_monitor = 0; 3132 break; 3133 case QEMU_OPTION_qmp_pretty: 3134 monitor_parse(optarg, "control", true); 3135 default_monitor = 0; 3136 break; 3137 case QEMU_OPTION_mon: 3138 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, 3139 true); 3140 if (!opts) { 3141 exit(1); 3142 } 3143 default_monitor = 0; 3144 break; 3145 case QEMU_OPTION_chardev: 3146 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), 3147 optarg, true); 3148 if (!opts) { 3149 exit(1); 3150 } 3151 break; 3152 case QEMU_OPTION_fsdev: 3153 olist = qemu_find_opts("fsdev"); 3154 if (!olist) { 3155 error_report("fsdev support is disabled"); 3156 exit(1); 3157 } 3158 opts = qemu_opts_parse_noisily(olist, optarg, true); 3159 if (!opts) { 3160 exit(1); 3161 } 3162 break; 3163 case QEMU_OPTION_virtfs: { 3164 QemuOpts *fsdev; 3165 QemuOpts *device; 3166 const char *writeout, *sock_fd, *socket, *path, *security_model, 3167 *multidevs; 3168 3169 olist = qemu_find_opts("virtfs"); 3170 if (!olist) { 3171 error_report("virtfs support is disabled"); 3172 exit(1); 3173 } 3174 opts = qemu_opts_parse_noisily(olist, optarg, true); 3175 if (!opts) { 3176 exit(1); 3177 } 3178 3179 if (qemu_opt_get(opts, "fsdriver") == NULL || 3180 qemu_opt_get(opts, "mount_tag") == NULL) { 3181 error_report("Usage: -virtfs fsdriver,mount_tag=tag"); 3182 exit(1); 3183 } 3184 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), 3185 qemu_opts_id(opts) ?: 3186 qemu_opt_get(opts, "mount_tag"), 3187 1, NULL); 3188 if (!fsdev) { 3189 error_report("duplicate or invalid fsdev id: %s", 3190 qemu_opt_get(opts, "mount_tag")); 3191 exit(1); 3192 } 3193 3194 writeout = qemu_opt_get(opts, "writeout"); 3195 if (writeout) { 3196 #ifdef CONFIG_SYNC_FILE_RANGE 3197 qemu_opt_set(fsdev, "writeout", writeout, &error_abort); 3198 #else 3199 error_report("writeout=immediate not supported " 3200 "on this platform"); 3201 exit(1); 3202 #endif 3203 } 3204 qemu_opt_set(fsdev, "fsdriver", 3205 qemu_opt_get(opts, "fsdriver"), &error_abort); 3206 path = qemu_opt_get(opts, "path"); 3207 if (path) { 3208 qemu_opt_set(fsdev, "path", path, &error_abort); 3209 } 3210 security_model = qemu_opt_get(opts, "security_model"); 3211 if (security_model) { 3212 qemu_opt_set(fsdev, "security_model", security_model, 3213 &error_abort); 3214 } 3215 socket = qemu_opt_get(opts, "socket"); 3216 if (socket) { 3217 qemu_opt_set(fsdev, "socket", socket, &error_abort); 3218 } 3219 sock_fd = qemu_opt_get(opts, "sock_fd"); 3220 if (sock_fd) { 3221 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); 3222 } 3223 3224 qemu_opt_set_bool(fsdev, "readonly", 3225 qemu_opt_get_bool(opts, "readonly", 0), 3226 &error_abort); 3227 multidevs = qemu_opt_get(opts, "multidevs"); 3228 if (multidevs) { 3229 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); 3230 } 3231 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, 3232 &error_abort); 3233 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); 3234 qemu_opt_set(device, "fsdev", 3235 qemu_opts_id(fsdev), &error_abort); 3236 qemu_opt_set(device, "mount_tag", 3237 qemu_opt_get(opts, "mount_tag"), &error_abort); 3238 break; 3239 } 3240 case QEMU_OPTION_serial: 3241 add_device_config(DEV_SERIAL, optarg); 3242 default_serial = 0; 3243 if (strncmp(optarg, "mon:", 4) == 0) { 3244 default_monitor = 0; 3245 } 3246 break; 3247 case QEMU_OPTION_action: 3248 olist = qemu_find_opts("action"); 3249 if (!qemu_opts_parse_noisily(olist, optarg, false)) { 3250 exit(1); 3251 } 3252 break; 3253 case QEMU_OPTION_watchdog_action: { 3254 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); 3255 qemu_opt_set(opts, "watchdog", optarg, &error_abort); 3256 break; 3257 } 3258 case QEMU_OPTION_parallel: 3259 add_device_config(DEV_PARALLEL, optarg); 3260 default_parallel = 0; 3261 if (strncmp(optarg, "mon:", 4) == 0) { 3262 default_monitor = 0; 3263 } 3264 break; 3265 case QEMU_OPTION_debugcon: 3266 add_device_config(DEV_DEBUGCON, optarg); 3267 break; 3268 case QEMU_OPTION_loadvm: 3269 loadvm = optarg; 3270 break; 3271 case QEMU_OPTION_full_screen: 3272 dpy.has_full_screen = true; 3273 dpy.full_screen = true; 3274 break; 3275 case QEMU_OPTION_pidfile: 3276 pid_file = optarg; 3277 break; 3278 case QEMU_OPTION_win2k_hack: 3279 object_register_sugar_prop("ide-device", "win2k-install-hack", "true", true); 3280 break; 3281 case QEMU_OPTION_acpitable: 3282 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), 3283 optarg, true); 3284 if (!opts) { 3285 exit(1); 3286 } 3287 acpi_table_add(opts, &error_fatal); 3288 break; 3289 case QEMU_OPTION_smbios: 3290 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), 3291 optarg, false); 3292 if (!opts) { 3293 exit(1); 3294 } 3295 smbios_entry_add(opts, &error_fatal); 3296 break; 3297 case QEMU_OPTION_fwcfg: 3298 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), 3299 optarg, true); 3300 if (opts == NULL) { 3301 exit(1); 3302 } 3303 break; 3304 case QEMU_OPTION_preconfig: 3305 preconfig_requested = true; 3306 break; 3307 case QEMU_OPTION_enable_kvm: 3308 qdict_put_str(machine_opts_dict, "accel", "kvm"); 3309 break; 3310 case QEMU_OPTION_M: 3311 case QEMU_OPTION_machine: 3312 { 3313 bool help; 3314 3315 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); 3316 if (help) { 3317 machine_help_func(machine_opts_dict); 3318 exit(EXIT_SUCCESS); 3319 } 3320 break; 3321 } 3322 case QEMU_OPTION_accel: 3323 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), 3324 optarg, true); 3325 optarg = qemu_opt_get(accel_opts, "accel"); 3326 if (!optarg || is_help_option(optarg)) { 3327 printf("Accelerators supported in QEMU binary:\n"); 3328 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, 3329 false); 3330 for (el = accel_list; el; el = el->next) { 3331 gchar *typename = g_strdup(object_class_get_name( 3332 OBJECT_CLASS(el->data))); 3333 /* omit qtest which is used for tests only */ 3334 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && 3335 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { 3336 gchar **optname = g_strsplit(typename, 3337 ACCEL_CLASS_SUFFIX, 0); 3338 printf("%s\n", optname[0]); 3339 g_strfreev(optname); 3340 } 3341 g_free(typename); 3342 } 3343 g_slist_free(accel_list); 3344 exit(0); 3345 } 3346 break; 3347 case QEMU_OPTION_usb: 3348 qdict_put_str(machine_opts_dict, "usb", "on"); 3349 break; 3350 case QEMU_OPTION_usbdevice: 3351 qdict_put_str(machine_opts_dict, "usb", "on"); 3352 add_device_config(DEV_USB, optarg); 3353 break; 3354 case QEMU_OPTION_device: 3355 if (optarg[0] == '{') { 3356 QObject *obj = qobject_from_json(optarg, &error_fatal); 3357 DeviceOption *opt = g_new0(DeviceOption, 1); 3358 opt->opts = qobject_to(QDict, obj); 3359 loc_save(&opt->loc); 3360 assert(opt->opts != NULL); 3361 QTAILQ_INSERT_TAIL(&device_opts, opt, next); 3362 } else { 3363 if (!qemu_opts_parse_noisily(qemu_find_opts("device"), 3364 optarg, true)) { 3365 exit(1); 3366 } 3367 } 3368 break; 3369 case QEMU_OPTION_smp: 3370 machine_parse_property_opt(qemu_find_opts("smp-opts"), 3371 "smp", optarg); 3372 break; 3373 #ifdef CONFIG_VNC 3374 case QEMU_OPTION_vnc: 3375 vnc_parse(optarg); 3376 display_remote++; 3377 break; 3378 #endif 3379 case QEMU_OPTION_no_reboot: 3380 olist = qemu_find_opts("action"); 3381 qemu_opts_parse_noisily(olist, "reboot=shutdown", false); 3382 break; 3383 case QEMU_OPTION_no_shutdown: 3384 olist = qemu_find_opts("action"); 3385 qemu_opts_parse_noisily(olist, "shutdown=pause", false); 3386 break; 3387 case QEMU_OPTION_uuid: 3388 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { 3389 error_report("failed to parse UUID string: wrong format"); 3390 exit(1); 3391 } 3392 qemu_uuid_set = true; 3393 break; 3394 case QEMU_OPTION_option_rom: 3395 if (nb_option_roms >= MAX_OPTION_ROMS) { 3396 error_report("too many option ROMs"); 3397 exit(1); 3398 } 3399 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), 3400 optarg, true); 3401 if (!opts) { 3402 exit(1); 3403 } 3404 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); 3405 option_rom[nb_option_roms].bootindex = 3406 qemu_opt_get_number(opts, "bootindex", -1); 3407 if (!option_rom[nb_option_roms].name) { 3408 error_report("Option ROM file is not specified"); 3409 exit(1); 3410 } 3411 nb_option_roms++; 3412 break; 3413 case QEMU_OPTION_semihosting: 3414 qemu_semihosting_enable(); 3415 break; 3416 case QEMU_OPTION_semihosting_config: 3417 if (qemu_semihosting_config_options(optarg) != 0) { 3418 exit(1); 3419 } 3420 break; 3421 case QEMU_OPTION_name: 3422 opts = qemu_opts_parse_noisily(qemu_find_opts("name"), 3423 optarg, true); 3424 if (!opts) { 3425 exit(1); 3426 } 3427 /* Capture guest name if -msg guest-name is used later */ 3428 error_guest_name = qemu_opt_get(opts, "guest"); 3429 break; 3430 case QEMU_OPTION_prom_env: 3431 if (nb_prom_envs >= MAX_PROM_ENVS) { 3432 error_report("too many prom variables"); 3433 exit(1); 3434 } 3435 prom_envs[nb_prom_envs] = optarg; 3436 nb_prom_envs++; 3437 break; 3438 case QEMU_OPTION_old_param: 3439 old_param = 1; 3440 break; 3441 case QEMU_OPTION_rtc: 3442 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, 3443 false); 3444 if (!opts) { 3445 exit(1); 3446 } 3447 break; 3448 case QEMU_OPTION_icount: 3449 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), 3450 optarg, true); 3451 if (!icount_opts) { 3452 exit(1); 3453 } 3454 break; 3455 case QEMU_OPTION_incoming: 3456 if (!incoming) { 3457 runstate_set(RUN_STATE_INMIGRATE); 3458 } 3459 incoming = optarg; 3460 break; 3461 case QEMU_OPTION_only_migratable: 3462 only_migratable = 1; 3463 break; 3464 case QEMU_OPTION_nodefaults: 3465 has_defaults = 0; 3466 break; 3467 case QEMU_OPTION_xen_domid: 3468 if (!(accel_find("xen")) && !(accel_find("kvm"))) { 3469 error_report("Option not supported for this target"); 3470 exit(1); 3471 } 3472 xen_domid = atoi(optarg); 3473 break; 3474 case QEMU_OPTION_xen_attach: 3475 if (!(accel_find("xen"))) { 3476 error_report("Option not supported for this target"); 3477 exit(1); 3478 } 3479 xen_mode = XEN_ATTACH; 3480 break; 3481 case QEMU_OPTION_xen_domid_restrict: 3482 if (!(accel_find("xen"))) { 3483 error_report("Option not supported for this target"); 3484 exit(1); 3485 } 3486 xen_domid_restrict = true; 3487 break; 3488 case QEMU_OPTION_trace: 3489 trace_opt_parse(optarg); 3490 break; 3491 case QEMU_OPTION_plugin: 3492 qemu_plugin_opt_parse(optarg, &plugin_list); 3493 break; 3494 case QEMU_OPTION_readconfig: 3495 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); 3496 break; 3497 #ifdef CONFIG_SPICE 3498 case QEMU_OPTION_spice: 3499 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false); 3500 if (!opts) { 3501 exit(1); 3502 } 3503 display_remote++; 3504 break; 3505 #endif 3506 case QEMU_OPTION_qtest: 3507 qtest_chrdev = optarg; 3508 break; 3509 case QEMU_OPTION_qtest_log: 3510 qtest_log = optarg; 3511 break; 3512 case QEMU_OPTION_sandbox: 3513 olist = qemu_find_opts("sandbox"); 3514 if (!olist) { 3515 #ifndef CONFIG_SECCOMP 3516 error_report("-sandbox support is not enabled " 3517 "in this QEMU binary"); 3518 #endif 3519 exit(1); 3520 } 3521 3522 opts = qemu_opts_parse_noisily(olist, optarg, true); 3523 if (!opts) { 3524 exit(1); 3525 } 3526 break; 3527 case QEMU_OPTION_add_fd: 3528 #ifndef _WIN32 3529 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), 3530 optarg, false); 3531 if (!opts) { 3532 exit(1); 3533 } 3534 #else 3535 error_report("File descriptor passing is disabled on this " 3536 "platform"); 3537 exit(1); 3538 #endif 3539 break; 3540 case QEMU_OPTION_object: 3541 object_option_parse(optarg); 3542 break; 3543 case QEMU_OPTION_overcommit: 3544 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), 3545 optarg, false); 3546 if (!opts) { 3547 exit(1); 3548 } 3549 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false); 3550 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false); 3551 break; 3552 case QEMU_OPTION_compat: 3553 { 3554 CompatPolicy *opts_policy; 3555 Visitor *v; 3556 3557 v = qobject_input_visitor_new_str(optarg, NULL, 3558 &error_fatal); 3559 3560 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); 3561 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); 3562 3563 qapi_free_CompatPolicy(opts_policy); 3564 visit_free(v); 3565 break; 3566 } 3567 case QEMU_OPTION_msg: 3568 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, 3569 false); 3570 if (!opts) { 3571 exit(1); 3572 } 3573 configure_msg(opts); 3574 break; 3575 case QEMU_OPTION_dump_vmstate: 3576 if (vmstate_dump_file) { 3577 error_report("only one '-dump-vmstate' " 3578 "option may be given"); 3579 exit(1); 3580 } 3581 vmstate_dump_file = fopen(optarg, "w"); 3582 if (vmstate_dump_file == NULL) { 3583 error_report("open %s: %s", optarg, strerror(errno)); 3584 exit(1); 3585 } 3586 break; 3587 case QEMU_OPTION_enable_sync_profile: 3588 qsp_enable(); 3589 break; 3590 case QEMU_OPTION_nouserconfig: 3591 /* Nothing to be parsed here. Especially, do not error out below. */ 3592 break; 3593 #if defined(CONFIG_POSIX) 3594 case QEMU_OPTION_runas: 3595 warn_report("-runas is deprecated, use '-run-with user=...' instead"); 3596 if (!os_set_runas(optarg)) { 3597 error_report("User \"%s\" doesn't exist" 3598 " (and is not <uid>:<gid>)", 3599 optarg); 3600 exit(1); 3601 } 3602 break; 3603 case QEMU_OPTION_daemonize: 3604 os_set_daemonize(true); 3605 break; 3606 case QEMU_OPTION_run_with: { 3607 const char *str; 3608 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), 3609 optarg, false); 3610 if (!opts) { 3611 exit(1); 3612 } 3613 #if defined(CONFIG_LINUX) 3614 if (qemu_opt_get_bool(opts, "async-teardown", false)) { 3615 init_async_teardown(); 3616 } 3617 #endif 3618 str = qemu_opt_get(opts, "chroot"); 3619 if (str) { 3620 os_set_chroot(str); 3621 } 3622 str = qemu_opt_get(opts, "user"); 3623 if (str) { 3624 if (!os_set_runas(str)) { 3625 error_report("User \"%s\" doesn't exist" 3626 " (and is not <uid>:<gid>)", 3627 optarg); 3628 exit(1); 3629 } 3630 } 3631 3632 break; 3633 } 3634 #endif /* CONFIG_POSIX */ 3635 3636 default: 3637 error_report("Option not supported in this build"); 3638 exit(1); 3639 } 3640 } 3641 } 3642 /* 3643 * Clear error location left behind by the loop. 3644 * Best done right after the loop. Do not insert code here! 3645 */ 3646 loc_set_none(); 3647 3648 qemu_validate_options(machine_opts_dict); 3649 qemu_process_sugar_options(); 3650 3651 /* 3652 * These options affect everything else and should be processed 3653 * before daemonizing. 3654 */ 3655 qemu_process_early_options(); 3656 3657 qemu_process_help_options(); 3658 qemu_maybe_daemonize(pid_file); 3659 3660 /* 3661 * The trace backend must be initialized after daemonizing. 3662 * trace_init_backends() will call st_init(), which will create the 3663 * trace thread in the parent, and also register st_flush_trace_buffer() 3664 * in atexit(). This function will force the parent to wait for the 3665 * writeout thread to finish, which will not occur, and the parent 3666 * process will be left in the host. 3667 */ 3668 if (!trace_init_backends()) { 3669 exit(1); 3670 } 3671 trace_init_file(); 3672 3673 qemu_init_main_loop(&error_fatal); 3674 cpu_timers_init(); 3675 3676 user_register_global_props(); 3677 replay_configure(icount_opts); 3678 3679 configure_rtc(qemu_find_opts_singleton("rtc")); 3680 3681 /* Transfer QemuOpts options into machine options */ 3682 parse_memory_options(); 3683 3684 qemu_create_machine(machine_opts_dict); 3685 3686 suspend_mux_open(); 3687 3688 qemu_disable_default_devices(); 3689 qemu_setup_display(); 3690 qemu_create_default_devices(); 3691 qemu_create_early_backends(); 3692 3693 qemu_apply_legacy_machine_options(machine_opts_dict); 3694 qemu_apply_machine_options(machine_opts_dict); 3695 qobject_unref(machine_opts_dict); 3696 phase_advance(PHASE_MACHINE_CREATED); 3697 3698 /* 3699 * Note: uses machine properties such as kernel-irqchip, must run 3700 * after qemu_apply_machine_options. 3701 */ 3702 configure_accelerators(argv[0]); 3703 phase_advance(PHASE_ACCEL_CREATED); 3704 3705 /* 3706 * Beware, QOM objects created before this point miss global and 3707 * compat properties. 3708 * 3709 * Global properties get set up by qdev_prop_register_global(), 3710 * called from user_register_global_props(), and certain option 3711 * desugaring. Also in CPU feature desugaring (buried in 3712 * parse_cpu_option()), which happens below this point, but may 3713 * only target the CPU type, which can only be created after 3714 * parse_cpu_option() returned the type. 3715 * 3716 * Machine compat properties: object_set_machine_compat_props(). 3717 * Accelerator compat props: object_set_accelerator_compat_props(), 3718 * called from do_configure_accelerator(). 3719 */ 3720 3721 machine_class = MACHINE_GET_CLASS(current_machine); 3722 if (!qtest_enabled() && machine_class->deprecation_reason) { 3723 warn_report("Machine type '%s' is deprecated: %s", 3724 machine_class->name, machine_class->deprecation_reason); 3725 } 3726 3727 /* 3728 * Create backends before creating migration objects, so that it can 3729 * check against compatibilities on the backend memories (e.g. postcopy 3730 * over memory-backend-file objects). 3731 */ 3732 qemu_create_late_backends(); 3733 phase_advance(PHASE_LATE_BACKENDS_CREATED); 3734 3735 /* 3736 * Note: creates a QOM object, must run only after global and 3737 * compat properties have been set up. 3738 */ 3739 migration_object_init(); 3740 3741 /* parse features once if machine provides default cpu_type */ 3742 current_machine->cpu_type = machine_class_default_cpu_type(machine_class); 3743 if (cpu_option) { 3744 current_machine->cpu_type = parse_cpu_option(cpu_option); 3745 } 3746 /* NB: for machine none cpu_type could STILL be NULL here! */ 3747 3748 qemu_resolve_machine_memdev(); 3749 parse_numa_opts(current_machine); 3750 3751 if (vmstate_dump_file) { 3752 /* dump and exit */ 3753 module_load_qom_all(); 3754 dump_vmstate_json_to_file(vmstate_dump_file); 3755 exit(0); 3756 } 3757 3758 if (!preconfig_requested) { 3759 qmp_x_exit_preconfig(&error_fatal); 3760 } 3761 qemu_init_displays(); 3762 accel_setup_post(current_machine); 3763 os_setup_post(); 3764 resume_mux_open(); 3765 } 3766