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