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_file_from_generator(fw_cfg, object_get_objects_root(), 1188 gen_id, name, errp)) { 1189 return -1; 1190 } 1191 return 0; 1192 } else { 1193 GError *err = NULL; 1194 if (!g_file_get_contents(file, &buf, &size, &err)) { 1195 error_setg(errp, "can't load %s: %s", file, err->message); 1196 g_error_free(err); 1197 return -1; 1198 } 1199 } 1200 /* For legacy, keep user files in a specific global order. */ 1201 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); 1202 fw_cfg_add_file(fw_cfg, name, buf, size); 1203 fw_cfg_reset_order_override(fw_cfg); 1204 return 0; 1205 } 1206 1207 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) 1208 { 1209 return qdev_device_help(opts); 1210 } 1211 1212 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) 1213 { 1214 DeviceState *dev; 1215 1216 dev = qdev_device_add(opts, errp); 1217 if (!dev && *errp) { 1218 error_report_err(*errp); 1219 return -1; 1220 } else if (dev) { 1221 object_unref(OBJECT(dev)); 1222 } 1223 return 0; 1224 } 1225 1226 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1227 { 1228 Error *local_err = NULL; 1229 1230 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { 1231 if (local_err) { 1232 error_propagate(errp, local_err); 1233 return -1; 1234 } 1235 exit(0); 1236 } 1237 return 0; 1238 } 1239 1240 #ifdef CONFIG_VIRTFS 1241 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1242 { 1243 return qemu_fsdev_add(opts, errp); 1244 } 1245 #endif 1246 1247 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) 1248 { 1249 return monitor_init_opts(opts, errp); 1250 } 1251 1252 static void monitor_parse(const char *str, const char *mode, bool pretty) 1253 { 1254 static int monitor_device_index = 0; 1255 QemuOpts *opts; 1256 const char *p; 1257 char label[32]; 1258 1259 if (strstart(str, "chardev:", &p)) { 1260 snprintf(label, sizeof(label), "%s", p); 1261 } else { 1262 snprintf(label, sizeof(label), "compat_monitor%d", 1263 monitor_device_index); 1264 opts = qemu_chr_parse_compat(label, str, true); 1265 if (!opts) { 1266 error_report("parse error: %s", str); 1267 exit(1); 1268 } 1269 } 1270 1271 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); 1272 qemu_opt_set(opts, "mode", mode, &error_abort); 1273 qemu_opt_set(opts, "chardev", label, &error_abort); 1274 if (!strcmp(mode, "control")) { 1275 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); 1276 } else { 1277 assert(pretty == false); 1278 } 1279 monitor_device_index++; 1280 } 1281 1282 struct device_config { 1283 enum { 1284 DEV_USB, /* -usbdevice */ 1285 DEV_SERIAL, /* -serial */ 1286 DEV_PARALLEL, /* -parallel */ 1287 DEV_DEBUGCON, /* -debugcon */ 1288 DEV_GDB, /* -gdb, -s */ 1289 DEV_SCLP, /* s390 sclp */ 1290 } type; 1291 const char *cmdline; 1292 Location loc; 1293 QTAILQ_ENTRY(device_config) next; 1294 }; 1295 1296 static QTAILQ_HEAD(, device_config) device_configs = 1297 QTAILQ_HEAD_INITIALIZER(device_configs); 1298 1299 static void add_device_config(int type, const char *cmdline) 1300 { 1301 struct device_config *conf; 1302 1303 conf = g_malloc0(sizeof(*conf)); 1304 conf->type = type; 1305 conf->cmdline = cmdline; 1306 loc_save(&conf->loc); 1307 QTAILQ_INSERT_TAIL(&device_configs, conf, next); 1308 } 1309 1310 static int foreach_device_config(int type, int (*func)(const char *cmdline)) 1311 { 1312 struct device_config *conf; 1313 int rc; 1314 1315 QTAILQ_FOREACH(conf, &device_configs, next) { 1316 if (conf->type != type) 1317 continue; 1318 loc_push_restore(&conf->loc); 1319 rc = func(conf->cmdline); 1320 loc_pop(&conf->loc); 1321 if (rc) { 1322 return rc; 1323 } 1324 } 1325 return 0; 1326 } 1327 1328 static void qemu_disable_default_devices(void) 1329 { 1330 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1331 1332 default_driver_check_json(); 1333 qemu_opts_foreach(qemu_find_opts("device"), 1334 default_driver_check, NULL, NULL); 1335 qemu_opts_foreach(qemu_find_opts("global"), 1336 default_driver_check, NULL, NULL); 1337 1338 if (!vga_model && !default_vga) { 1339 vga_interface_type = VGA_DEVICE; 1340 vga_interface_created = true; 1341 } 1342 if (!has_defaults || machine_class->no_serial) { 1343 default_serial = 0; 1344 } 1345 if (!has_defaults || machine_class->no_parallel) { 1346 default_parallel = 0; 1347 } 1348 if (!has_defaults || machine_class->no_floppy) { 1349 default_floppy = 0; 1350 } 1351 if (!has_defaults || machine_class->no_cdrom) { 1352 default_cdrom = 0; 1353 } 1354 if (!has_defaults || machine_class->no_sdcard) { 1355 default_sdcard = 0; 1356 } 1357 if (!has_defaults) { 1358 default_audio = 0; 1359 default_monitor = 0; 1360 default_net = 0; 1361 default_vga = 0; 1362 } else { 1363 if (default_net && machine_class->default_nic && 1364 !module_object_class_by_name(machine_class->default_nic)) { 1365 warn_report("Default NIC '%s' is not available in this binary", 1366 machine_class->default_nic); 1367 default_net = 0; 1368 } 1369 } 1370 } 1371 1372 static void qemu_setup_display(void) 1373 { 1374 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { 1375 if (!qemu_display_find_default(&dpy)) { 1376 dpy.type = DISPLAY_TYPE_NONE; 1377 #if defined(CONFIG_VNC) 1378 vnc_parse("localhost:0,to=99,id=default"); 1379 display_remote++; 1380 #endif 1381 } 1382 } 1383 if (dpy.type == DISPLAY_TYPE_DEFAULT) { 1384 dpy.type = DISPLAY_TYPE_NONE; 1385 } 1386 1387 qemu_display_early_init(&dpy); 1388 } 1389 1390 static void qemu_create_default_devices(void) 1391 { 1392 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1393 const char *vc = qemu_display_get_vc(&dpy); 1394 1395 if (is_daemonized()) { 1396 /* According to documentation and historically, -nographic redirects 1397 * serial port, parallel port and monitor to stdio, which does not work 1398 * with -daemonize. We can redirect these to null instead, but since 1399 * -nographic is legacy, let's just error out. 1400 * We disallow -nographic only if all other ports are not redirected 1401 * explicitly, to not break existing legacy setups which uses 1402 * -nographic _and_ redirects all ports explicitly - this is valid 1403 * usage, -nographic is just a no-op in this case. 1404 */ 1405 if (nographic 1406 && (default_parallel || default_serial || default_monitor)) { 1407 error_report("-nographic cannot be used with -daemonize"); 1408 exit(1); 1409 } 1410 } 1411 1412 if (nographic) { 1413 if (default_parallel) { 1414 add_device_config(DEV_PARALLEL, "null"); 1415 } 1416 if (default_serial && default_monitor) { 1417 add_device_config(DEV_SERIAL, "mon:stdio"); 1418 } else { 1419 if (default_serial) { 1420 add_device_config(DEV_SERIAL, "stdio"); 1421 } 1422 if (default_monitor) { 1423 monitor_parse("stdio", "readline", false); 1424 } 1425 } 1426 } else { 1427 if (default_serial) { 1428 add_device_config(DEV_SERIAL, vc ?: "null"); 1429 } 1430 if (default_parallel) { 1431 add_device_config(DEV_PARALLEL, vc ?: "null"); 1432 } 1433 if (default_monitor && vc) { 1434 monitor_parse(vc, "readline", false); 1435 } 1436 } 1437 1438 if (default_net) { 1439 QemuOptsList *net = qemu_find_opts("net"); 1440 qemu_opts_parse(net, "nic", true, &error_abort); 1441 #ifdef CONFIG_SLIRP 1442 qemu_opts_parse(net, "user", true, &error_abort); 1443 #endif 1444 } 1445 1446 /* If no default VGA is requested, the default is "none". */ 1447 if (default_vga) { 1448 vga_model = get_default_vga_model(machine_class); 1449 } 1450 if (vga_model) { 1451 select_vgahw(machine_class, vga_model); 1452 } 1453 } 1454 1455 static int serial_parse(const char *devname) 1456 { 1457 int index = num_serial_hds; 1458 1459 serial_hds = g_renew(Chardev *, serial_hds, index + 1); 1460 1461 if (strcmp(devname, "none") == 0) { 1462 /* Don't allocate a serial device for this index */ 1463 serial_hds[index] = NULL; 1464 } else { 1465 char label[32]; 1466 snprintf(label, sizeof(label), "serial%d", index); 1467 1468 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1469 if (!serial_hds[index]) { 1470 error_report("could not connect serial device" 1471 " to character backend '%s'", devname); 1472 return -1; 1473 } 1474 } 1475 num_serial_hds++; 1476 return 0; 1477 } 1478 1479 Chardev *serial_hd(int i) 1480 { 1481 assert(i >= 0); 1482 if (i < num_serial_hds) { 1483 return serial_hds[i]; 1484 } 1485 return NULL; 1486 } 1487 1488 static int parallel_parse(const char *devname) 1489 { 1490 static int index = 0; 1491 char label[32]; 1492 1493 if (strcmp(devname, "none") == 0) 1494 return 0; 1495 if (index == MAX_PARALLEL_PORTS) { 1496 error_report("too many parallel ports"); 1497 exit(1); 1498 } 1499 snprintf(label, sizeof(label), "parallel%d", index); 1500 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1501 if (!parallel_hds[index]) { 1502 error_report("could not connect parallel device" 1503 " to character backend '%s'", devname); 1504 return -1; 1505 } 1506 index++; 1507 return 0; 1508 } 1509 1510 static int debugcon_parse(const char *devname) 1511 { 1512 QemuOpts *opts; 1513 1514 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { 1515 error_report("invalid character backend '%s'", devname); 1516 exit(1); 1517 } 1518 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); 1519 if (!opts) { 1520 error_report("already have a debugcon device"); 1521 exit(1); 1522 } 1523 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); 1524 qemu_opt_set(opts, "chardev", "debugcon", &error_abort); 1525 return 0; 1526 } 1527 1528 static gint machine_class_cmp(gconstpointer a, gconstpointer b) 1529 { 1530 const MachineClass *mc1 = a, *mc2 = b; 1531 int res; 1532 1533 if (mc1->family == NULL) { 1534 if (mc2->family == NULL) { 1535 /* Compare standalone machine types against each other; they sort 1536 * in increasing order. 1537 */ 1538 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), 1539 object_class_get_name(OBJECT_CLASS(mc2))); 1540 } 1541 1542 /* Standalone machine types sort after families. */ 1543 return 1; 1544 } 1545 1546 if (mc2->family == NULL) { 1547 /* Families sort before standalone machine types. */ 1548 return -1; 1549 } 1550 1551 /* Families sort between each other alphabetically increasingly. */ 1552 res = strcmp(mc1->family, mc2->family); 1553 if (res != 0) { 1554 return res; 1555 } 1556 1557 /* Within the same family, machine types sort in decreasing order. */ 1558 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), 1559 object_class_get_name(OBJECT_CLASS(mc1))); 1560 } 1561 1562 static void machine_help_func(const QDict *qdict) 1563 { 1564 g_autoptr(GSList) machines = NULL; 1565 GSList *el; 1566 const char *type = qdict_get_try_str(qdict, "type"); 1567 1568 machines = object_class_get_list(TYPE_MACHINE, false); 1569 if (type) { 1570 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); 1571 if (machine_class) { 1572 type_print_class_properties(object_class_get_name(machine_class)); 1573 return; 1574 } 1575 } 1576 1577 printf("Supported machines are:\n"); 1578 machines = g_slist_sort(machines, machine_class_cmp); 1579 for (el = machines; el; el = el->next) { 1580 MachineClass *mc = el->data; 1581 if (mc->alias) { 1582 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); 1583 } 1584 printf("%-20s %s%s%s\n", mc->name, mc->desc, 1585 mc->is_default ? " (default)" : "", 1586 mc->deprecation_reason ? " (deprecated)" : ""); 1587 } 1588 } 1589 1590 static void 1591 machine_merge_property(const char *propname, QDict *prop, Error **errp) 1592 { 1593 QDict *opts; 1594 1595 opts = qdict_new(); 1596 /* Preserve the caller's reference to prop. */ 1597 qobject_ref(prop); 1598 qdict_put(opts, propname, prop); 1599 keyval_merge(machine_opts_dict, opts, errp); 1600 qobject_unref(opts); 1601 } 1602 1603 static void 1604 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, 1605 const char *arg) 1606 { 1607 QDict *prop = NULL; 1608 bool help = false; 1609 1610 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); 1611 if (help) { 1612 qemu_opts_print_help(opts_list, true); 1613 exit(0); 1614 } 1615 machine_merge_property(propname, prop, &error_fatal); 1616 qobject_unref(prop); 1617 } 1618 1619 static const char *pid_file; 1620 struct UnlinkPidfileNotifier { 1621 Notifier notifier; 1622 char *pid_file_realpath; 1623 }; 1624 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; 1625 1626 static void qemu_unlink_pidfile(Notifier *n, void *data) 1627 { 1628 struct UnlinkPidfileNotifier *upn; 1629 1630 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); 1631 unlink(upn->pid_file_realpath); 1632 } 1633 1634 static const QEMUOption *lookup_opt(int argc, char **argv, 1635 const char **poptarg, int *poptind) 1636 { 1637 const QEMUOption *popt; 1638 int optind = *poptind; 1639 char *r = argv[optind]; 1640 const char *optarg; 1641 1642 loc_set_cmdline(argv, optind, 1); 1643 optind++; 1644 /* Treat --foo the same as -foo. */ 1645 if (r[1] == '-') 1646 r++; 1647 popt = qemu_options; 1648 for(;;) { 1649 if (!popt->name) { 1650 error_report("invalid option"); 1651 exit(1); 1652 } 1653 if (!strcmp(popt->name, r + 1)) 1654 break; 1655 popt++; 1656 } 1657 if (popt->flags & HAS_ARG) { 1658 if (optind >= argc) { 1659 error_report("requires an argument"); 1660 exit(1); 1661 } 1662 optarg = argv[optind++]; 1663 loc_set_cmdline(argv, optind - 2, 2); 1664 } else { 1665 optarg = NULL; 1666 } 1667 1668 *poptarg = optarg; 1669 *poptind = optind; 1670 1671 return popt; 1672 } 1673 1674 static MachineClass *select_machine(QDict *qdict, Error **errp) 1675 { 1676 ERRP_GUARD(); 1677 const char *machine_type = qdict_get_try_str(qdict, "type"); 1678 g_autoptr(GSList) machines = object_class_get_list(TYPE_MACHINE, false); 1679 MachineClass *machine_class = NULL; 1680 1681 if (machine_type) { 1682 machine_class = find_machine(machine_type, machines); 1683 if (!machine_class) { 1684 error_setg(errp, "unsupported machine type: \"%s\"", machine_type); 1685 } 1686 qdict_del(qdict, "type"); 1687 } else { 1688 machine_class = find_default_machine(machines); 1689 if (!machine_class) { 1690 error_setg(errp, "No machine specified, and there is no default"); 1691 } 1692 } 1693 1694 if (!machine_class) { 1695 error_append_hint(errp, 1696 "Use -machine help to list supported machines\n"); 1697 } 1698 return machine_class; 1699 } 1700 1701 static int object_parse_property_opt(Object *obj, 1702 const char *name, const char *value, 1703 const char *skip, Error **errp) 1704 { 1705 if (g_str_equal(name, skip)) { 1706 return 0; 1707 } 1708 1709 if (!object_property_parse(obj, name, value, errp)) { 1710 return -1; 1711 } 1712 1713 return 0; 1714 } 1715 1716 /* *Non*recursively replace underscores with dashes in QDict keys. */ 1717 static void keyval_dashify(QDict *qdict, Error **errp) 1718 { 1719 const QDictEntry *ent, *next; 1720 char *p; 1721 1722 for (ent = qdict_first(qdict); ent; ent = next) { 1723 g_autofree char *new_key = NULL; 1724 1725 next = qdict_next(qdict, ent); 1726 if (!strchr(ent->key, '_')) { 1727 continue; 1728 } 1729 new_key = g_strdup(ent->key); 1730 for (p = new_key; *p; p++) { 1731 if (*p == '_') { 1732 *p = '-'; 1733 } 1734 } 1735 if (qdict_haskey(qdict, new_key)) { 1736 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); 1737 return; 1738 } 1739 qobject_ref(ent->value); 1740 qdict_put_obj(qdict, new_key, ent->value); 1741 qdict_del(qdict, ent->key); 1742 } 1743 } 1744 1745 static void qemu_apply_legacy_machine_options(QDict *qdict) 1746 { 1747 const char *value; 1748 QObject *prop; 1749 1750 keyval_dashify(qdict, &error_fatal); 1751 1752 /* Legacy options do not correspond to MachineState properties. */ 1753 value = qdict_get_try_str(qdict, "accel"); 1754 if (value) { 1755 accelerators = g_strdup(value); 1756 qdict_del(qdict, "accel"); 1757 } 1758 1759 value = qdict_get_try_str(qdict, "igd-passthru"); 1760 if (value) { 1761 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, 1762 false); 1763 qdict_del(qdict, "igd-passthru"); 1764 } 1765 1766 value = qdict_get_try_str(qdict, "kvm-shadow-mem"); 1767 if (value) { 1768 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, 1769 false); 1770 qdict_del(qdict, "kvm-shadow-mem"); 1771 } 1772 1773 value = qdict_get_try_str(qdict, "kernel-irqchip"); 1774 if (value) { 1775 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, 1776 false); 1777 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, 1778 false); 1779 qdict_del(qdict, "kernel-irqchip"); 1780 } 1781 1782 value = qdict_get_try_str(qdict, "memory-backend"); 1783 if (value) { 1784 if (mem_path) { 1785 error_report("'-mem-path' can't be used together with" 1786 "'-machine memory-backend'"); 1787 exit(EXIT_FAILURE); 1788 } 1789 1790 /* Resolved later. */ 1791 ram_memdev_id = g_strdup(value); 1792 qdict_del(qdict, "memory-backend"); 1793 } 1794 1795 prop = qdict_get(qdict, "memory"); 1796 if (prop) { 1797 have_custom_ram_size = 1798 qobject_type(prop) == QTYPE_QDICT && 1799 qdict_haskey(qobject_to(QDict, prop), "size"); 1800 } 1801 } 1802 1803 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) 1804 { 1805 ObjectOption *opt, *next; 1806 1807 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { 1808 const char *type = ObjectType_str(opt->opts->qom_type); 1809 if (type_opt_predicate(type)) { 1810 user_creatable_add_qapi(opt->opts, &error_fatal); 1811 qapi_free_ObjectOptions(opt->opts); 1812 QTAILQ_REMOVE(&object_opts, opt, next); 1813 g_free(opt); 1814 } 1815 } 1816 } 1817 1818 static void object_option_add_visitor(Visitor *v) 1819 { 1820 ObjectOption *opt = g_new0(ObjectOption, 1); 1821 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); 1822 QTAILQ_INSERT_TAIL(&object_opts, opt, next); 1823 } 1824 1825 static void object_option_parse(const char *str) 1826 { 1827 QemuOpts *opts; 1828 const char *type; 1829 Visitor *v; 1830 1831 if (str[0] == '{') { 1832 QObject *obj = qobject_from_json(str, &error_fatal); 1833 1834 v = qobject_input_visitor_new(obj); 1835 qobject_unref(obj); 1836 } else { 1837 opts = qemu_opts_parse_noisily(qemu_find_opts("object"), 1838 str, true); 1839 if (!opts) { 1840 exit(1); 1841 } 1842 1843 type = qemu_opt_get(opts, "qom-type"); 1844 if (!type) { 1845 error_report(QERR_MISSING_PARAMETER, "qom-type"); 1846 exit(1); 1847 } 1848 if (user_creatable_print_help(type, opts)) { 1849 exit(0); 1850 } 1851 1852 v = opts_visitor_new(opts); 1853 } 1854 1855 object_option_add_visitor(v); 1856 visit_free(v); 1857 } 1858 1859 /* 1860 * Very early object creation, before the sandbox options have been activated. 1861 */ 1862 static bool object_create_pre_sandbox(const char *type) 1863 { 1864 /* 1865 * Objects should in general not get initialized "too early" without 1866 * a reason. If you add one, state the reason in a comment! 1867 */ 1868 1869 /* 1870 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU 1871 * affinity of threads. 1872 */ 1873 if (g_str_equal(type, "thread-context")) { 1874 return true; 1875 } 1876 1877 return false; 1878 } 1879 1880 /* 1881 * Initial object creation happens before all other 1882 * QEMU data types are created. The majority of objects 1883 * can be created at this point. The rng-egd object 1884 * cannot be created here, as it depends on the chardev 1885 * already existing. 1886 */ 1887 static bool object_create_early(const char *type) 1888 { 1889 /* 1890 * Objects should not be made "delayed" without a reason. If you 1891 * add one, state the reason in a comment! 1892 */ 1893 1894 /* Reason: already created. */ 1895 if (object_create_pre_sandbox(type)) { 1896 return false; 1897 } 1898 1899 /* Reason: property "chardev" */ 1900 if (g_str_equal(type, "rng-egd") || 1901 g_str_equal(type, "qtest")) { 1902 return false; 1903 } 1904 1905 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) 1906 /* Reason: cryptodev-vhost-user property "chardev" */ 1907 if (g_str_equal(type, "cryptodev-vhost-user")) { 1908 return false; 1909 } 1910 #endif 1911 1912 /* Reason: vhost-user-blk-server property "node-name" */ 1913 if (g_str_equal(type, "vhost-user-blk-server")) { 1914 return false; 1915 } 1916 /* 1917 * Reason: filter-* property "netdev" etc. 1918 */ 1919 if (g_str_equal(type, "filter-buffer") || 1920 g_str_equal(type, "filter-dump") || 1921 g_str_equal(type, "filter-mirror") || 1922 g_str_equal(type, "filter-redirector") || 1923 g_str_equal(type, "colo-compare") || 1924 g_str_equal(type, "filter-rewriter") || 1925 g_str_equal(type, "filter-replay")) { 1926 return false; 1927 } 1928 1929 /* 1930 * Allocation of large amounts of memory may delay 1931 * chardev initialization for too long, and trigger timeouts 1932 * on software that waits for a monitor socket to be created 1933 */ 1934 if (g_str_has_prefix(type, "memory-backend-")) { 1935 return false; 1936 } 1937 1938 return true; 1939 } 1940 1941 static void qemu_apply_machine_options(QDict *qdict) 1942 { 1943 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); 1944 1945 if (semihosting_enabled(false) && !semihosting_get_argc()) { 1946 /* fall back to the -kernel/-append */ 1947 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); 1948 } 1949 1950 if (current_machine->smp.cpus > 1) { 1951 replay_add_blocker("multiple CPUs"); 1952 } 1953 } 1954 1955 static void qemu_create_early_backends(void) 1956 { 1957 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1958 #if defined(CONFIG_SDL) 1959 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); 1960 #else 1961 const bool use_sdl = false; 1962 #endif 1963 #if defined(CONFIG_GTK) 1964 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); 1965 #else 1966 const bool use_gtk = false; 1967 #endif 1968 1969 if (dpy.has_window_close && !use_gtk && !use_sdl) { 1970 error_report("window-close is only valid for GTK and SDL, " 1971 "ignoring option"); 1972 } 1973 1974 qemu_console_early_init(); 1975 1976 if (dpy.has_gl && dpy.gl != DISPLAY_GL_MODE_OFF && display_opengl == 0) { 1977 #if defined(CONFIG_OPENGL) 1978 error_report("OpenGL is not supported by display backend '%s'", 1979 DisplayType_str(dpy.type)); 1980 #else 1981 error_report("OpenGL support was not enabled in this build of QEMU"); 1982 #endif 1983 exit(1); 1984 } 1985 1986 object_option_foreach_add(object_create_early); 1987 1988 /* spice needs the timers to be initialized by this point */ 1989 /* spice must initialize before audio as it changes the default audiodev */ 1990 /* spice must initialize before chardevs (for spicevmc and spiceport) */ 1991 qemu_spice.init(); 1992 1993 qemu_opts_foreach(qemu_find_opts("chardev"), 1994 chardev_init_func, NULL, &error_fatal); 1995 1996 #ifdef CONFIG_VIRTFS 1997 qemu_opts_foreach(qemu_find_opts("fsdev"), 1998 fsdev_init_func, NULL, &error_fatal); 1999 #endif 2000 2001 /* 2002 * Note: we need to create audio and block backends before 2003 * setting machine properties, so they can be referred to. 2004 */ 2005 configure_blockdev(&bdo_queue, machine_class, snapshot); 2006 audio_init_audiodevs(); 2007 if (default_audio) { 2008 audio_create_default_audiodevs(); 2009 } 2010 } 2011 2012 2013 /* 2014 * The remainder of object creation happens after the 2015 * creation of chardev, fsdev, net clients and device data types. 2016 */ 2017 static bool object_create_late(const char *type) 2018 { 2019 return !object_create_early(type) && !object_create_pre_sandbox(type); 2020 } 2021 2022 static void qemu_create_late_backends(void) 2023 { 2024 if (qtest_chrdev) { 2025 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); 2026 } 2027 2028 net_init_clients(); 2029 2030 object_option_foreach_add(object_create_late); 2031 2032 /* 2033 * Wait for any outstanding memory prealloc from created memory 2034 * backends to complete. 2035 */ 2036 if (!qemu_finish_async_prealloc_mem(&error_fatal)) { 2037 exit(1); 2038 } 2039 2040 if (tpm_init() < 0) { 2041 exit(1); 2042 } 2043 2044 qemu_opts_foreach(qemu_find_opts("mon"), 2045 mon_init_func, NULL, &error_fatal); 2046 2047 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) 2048 exit(1); 2049 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) 2050 exit(1); 2051 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0) 2052 exit(1); 2053 2054 /* now chardevs have been created we may have semihosting to connect */ 2055 qemu_semihosting_chardev_init(); 2056 } 2057 2058 static void qemu_resolve_machine_memdev(void) 2059 { 2060 if (ram_memdev_id) { 2061 Object *backend; 2062 ram_addr_t backend_size; 2063 2064 backend = object_resolve_path_type(ram_memdev_id, 2065 TYPE_MEMORY_BACKEND, NULL); 2066 if (!backend) { 2067 error_report("Memory backend '%s' not found", ram_memdev_id); 2068 exit(EXIT_FAILURE); 2069 } 2070 if (!have_custom_ram_size) { 2071 backend_size = object_property_get_uint(backend, "size", &error_abort); 2072 current_machine->ram_size = backend_size; 2073 } 2074 object_property_set_link(OBJECT(current_machine), 2075 "memory-backend", backend, &error_fatal); 2076 } 2077 } 2078 2079 static void parse_memory_options(void) 2080 { 2081 QemuOpts *opts = qemu_find_opts_singleton("memory"); 2082 QDict *dict, *prop; 2083 const char *mem_str; 2084 Location loc; 2085 2086 loc_push_none(&loc); 2087 qemu_opts_loc_restore(opts); 2088 2089 prop = qdict_new(); 2090 2091 if (qemu_opt_get_size(opts, "size", 0) != 0) { 2092 /* Fix up legacy suffix-less format */ 2093 mem_str = qemu_opt_get(opts, "size"); 2094 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { 2095 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); 2096 qdict_put_str(prop, "size", mib_str); 2097 } else { 2098 qdict_put_str(prop, "size", mem_str); 2099 } 2100 } 2101 2102 if (qemu_opt_get(opts, "maxmem")) { 2103 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); 2104 } 2105 if (qemu_opt_get(opts, "slots")) { 2106 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); 2107 } 2108 2109 dict = qdict_new(); 2110 qdict_put(dict, "memory", prop); 2111 keyval_merge(machine_opts_dict, dict, &error_fatal); 2112 qobject_unref(dict); 2113 loc_pop(&loc); 2114 } 2115 2116 static void qemu_create_machine(QDict *qdict) 2117 { 2118 MachineClass *machine_class = select_machine(qdict, &error_fatal); 2119 object_set_machine_compat_props(machine_class->compat_props); 2120 2121 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); 2122 object_property_add_child(object_get_root(), "machine", 2123 OBJECT(current_machine)); 2124 object_property_add_child(container_get(OBJECT(current_machine), 2125 "/unattached"), 2126 "sysbus", OBJECT(sysbus_get_default())); 2127 2128 if (machine_class->minimum_page_bits) { 2129 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { 2130 /* This would be a board error: specifying a minimum smaller than 2131 * a target's compile-time fixed setting. 2132 */ 2133 g_assert_not_reached(); 2134 } 2135 } 2136 2137 cpu_exec_init_all(); 2138 2139 if (machine_class->hw_version) { 2140 qemu_set_hw_version(machine_class->hw_version); 2141 } 2142 2143 /* 2144 * Get the default machine options from the machine if it is not already 2145 * specified either by the configuration file or by the command line. 2146 */ 2147 if (machine_class->default_machine_opts) { 2148 QDict *default_opts = 2149 keyval_parse(machine_class->default_machine_opts, NULL, NULL, 2150 &error_abort); 2151 qemu_apply_legacy_machine_options(default_opts); 2152 object_set_properties_from_keyval(OBJECT(current_machine), default_opts, 2153 false, &error_abort); 2154 qobject_unref(default_opts); 2155 } 2156 } 2157 2158 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) 2159 { 2160 GlobalProperty *g; 2161 2162 g = g_malloc0(sizeof(*g)); 2163 g->driver = qemu_opt_get(opts, "driver"); 2164 g->property = qemu_opt_get(opts, "property"); 2165 g->value = qemu_opt_get(opts, "value"); 2166 qdev_prop_register_global(g); 2167 return 0; 2168 } 2169 2170 /* 2171 * Return whether configuration group @group is stored in QemuOpts, or 2172 * recorded as one or more QDicts by qemu_record_config_group. 2173 */ 2174 static bool is_qemuopts_group(const char *group) 2175 { 2176 if (g_str_equal(group, "object") || 2177 g_str_equal(group, "audiodev") || 2178 g_str_equal(group, "machine") || 2179 g_str_equal(group, "smp-opts") || 2180 g_str_equal(group, "boot-opts")) { 2181 return false; 2182 } 2183 return true; 2184 } 2185 2186 static void qemu_record_config_group(const char *group, QDict *dict, 2187 bool from_json, Error **errp) 2188 { 2189 if (g_str_equal(group, "object")) { 2190 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2191 object_option_add_visitor(v); 2192 visit_free(v); 2193 2194 } else if (g_str_equal(group, "audiodev")) { 2195 Audiodev *dev = NULL; 2196 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2197 if (visit_type_Audiodev(v, NULL, &dev, errp)) { 2198 audio_define(dev); 2199 } 2200 visit_free(v); 2201 2202 } else if (g_str_equal(group, "machine")) { 2203 /* 2204 * Cannot merge string-valued and type-safe dictionaries, so JSON 2205 * is not accepted yet for -M. 2206 */ 2207 assert(!from_json); 2208 keyval_merge(machine_opts_dict, dict, errp); 2209 } else if (g_str_equal(group, "smp-opts")) { 2210 machine_merge_property("smp", dict, &error_fatal); 2211 } else if (g_str_equal(group, "boot-opts")) { 2212 machine_merge_property("boot", dict, &error_fatal); 2213 } else { 2214 abort(); 2215 } 2216 } 2217 2218 /* 2219 * Parse non-QemuOpts config file groups, pass the rest to 2220 * qemu_config_do_parse. 2221 */ 2222 static void qemu_parse_config_group(const char *group, QDict *qdict, 2223 void *opaque, Error **errp) 2224 { 2225 QObject *crumpled; 2226 if (is_qemuopts_group(group)) { 2227 qemu_config_do_parse(group, qdict, opaque, errp); 2228 return; 2229 } 2230 2231 crumpled = qdict_crumple(qdict, errp); 2232 if (!crumpled) { 2233 return; 2234 } 2235 switch (qobject_type(crumpled)) { 2236 case QTYPE_QDICT: 2237 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); 2238 break; 2239 case QTYPE_QLIST: 2240 error_setg(errp, "Lists cannot be at top level of a configuration section"); 2241 break; 2242 default: 2243 g_assert_not_reached(); 2244 } 2245 qobject_unref(crumpled); 2246 } 2247 2248 static void qemu_read_default_config_file(Error **errp) 2249 { 2250 ERRP_GUARD(); 2251 int ret; 2252 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); 2253 2254 ret = qemu_read_config_file(file, qemu_parse_config_group, errp); 2255 if (ret < 0) { 2256 if (ret == -ENOENT) { 2257 error_free(*errp); 2258 *errp = NULL; 2259 } 2260 } 2261 } 2262 2263 static void qemu_set_option(const char *str, Error **errp) 2264 { 2265 char group[64], id[64], arg[64]; 2266 QemuOptsList *list; 2267 QemuOpts *opts; 2268 int rc, offset; 2269 2270 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); 2271 if (rc < 3 || str[offset] != '=') { 2272 error_setg(errp, "can't parse: \"%s\"", str); 2273 return; 2274 } 2275 2276 if (!is_qemuopts_group(group)) { 2277 error_setg(errp, "-set is not supported with %s", group); 2278 } else { 2279 list = qemu_find_opts_err(group, errp); 2280 if (list) { 2281 opts = qemu_opts_find(list, id); 2282 if (!opts) { 2283 error_setg(errp, "there is no %s \"%s\" defined", group, id); 2284 return; 2285 } 2286 qemu_opt_set(opts, arg, str + offset + 1, errp); 2287 } 2288 } 2289 } 2290 2291 static void user_register_global_props(void) 2292 { 2293 qemu_opts_foreach(qemu_find_opts("global"), 2294 global_init_func, NULL, NULL); 2295 } 2296 2297 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) 2298 { 2299 return !icount_configure(opts, errp); 2300 } 2301 2302 static int accelerator_set_property(void *opaque, 2303 const char *name, const char *value, 2304 Error **errp) 2305 { 2306 return object_parse_property_opt(opaque, name, value, "accel", errp); 2307 } 2308 2309 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) 2310 { 2311 bool *p_init_failed = opaque; 2312 const char *acc = qemu_opt_get(opts, "accel"); 2313 AccelClass *ac = accel_find(acc); 2314 AccelState *accel; 2315 int ret; 2316 bool qtest_with_kvm; 2317 2318 if (!acc) { 2319 error_setg(errp, QERR_MISSING_PARAMETER, "accel"); 2320 goto bad; 2321 } 2322 2323 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; 2324 2325 if (!ac) { 2326 if (!qtest_with_kvm) { 2327 error_report("invalid accelerator %s", acc); 2328 } 2329 goto bad; 2330 } 2331 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); 2332 object_apply_compat_props(OBJECT(accel)); 2333 qemu_opt_foreach(opts, accelerator_set_property, 2334 accel, 2335 &error_fatal); 2336 2337 ret = accel_init_machine(accel, current_machine); 2338 if (ret < 0) { 2339 if (!qtest_with_kvm || ret != -ENOENT) { 2340 error_report("failed to initialize %s: %s", acc, strerror(-ret)); 2341 } 2342 goto bad; 2343 } 2344 2345 return 1; 2346 2347 bad: 2348 *p_init_failed = true; 2349 return 0; 2350 } 2351 2352 static void configure_accelerators(const char *progname) 2353 { 2354 bool init_failed = false; 2355 2356 qemu_opts_foreach(qemu_find_opts("icount"), 2357 do_configure_icount, NULL, &error_fatal); 2358 2359 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { 2360 char **accel_list, **tmp; 2361 2362 if (accelerators == NULL) { 2363 /* Select the default accelerator */ 2364 bool have_tcg = accel_find("tcg"); 2365 bool have_kvm = accel_find("kvm"); 2366 bool have_hvf = accel_find("hvf"); 2367 2368 if (have_tcg && have_kvm) { 2369 if (g_str_has_suffix(progname, "kvm")) { 2370 /* If the program name ends with "kvm", we prefer KVM */ 2371 accelerators = "kvm:tcg"; 2372 } else { 2373 accelerators = "tcg:kvm"; 2374 } 2375 } else if (have_kvm) { 2376 accelerators = "kvm"; 2377 } else if (have_tcg) { 2378 accelerators = "tcg"; 2379 } else if (have_hvf) { 2380 accelerators = "hvf"; 2381 } else { 2382 error_report("No accelerator selected and" 2383 " no default accelerator available"); 2384 exit(1); 2385 } 2386 } 2387 accel_list = g_strsplit(accelerators, ":", 0); 2388 2389 for (tmp = accel_list; *tmp; tmp++) { 2390 /* 2391 * Filter invalid accelerators here, to prevent obscenities 2392 * such as "-machine accel=tcg,,thread=single". 2393 */ 2394 if (accel_find(*tmp)) { 2395 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); 2396 } else { 2397 init_failed = true; 2398 error_report("invalid accelerator %s", *tmp); 2399 } 2400 } 2401 g_strfreev(accel_list); 2402 } else { 2403 if (accelerators != NULL) { 2404 error_report("The -accel and \"-machine accel=\" options are incompatible"); 2405 exit(1); 2406 } 2407 } 2408 2409 if (!qemu_opts_foreach(qemu_find_opts("accel"), 2410 do_configure_accelerator, &init_failed, &error_fatal)) { 2411 if (!init_failed) { 2412 error_report("no accelerator found"); 2413 } 2414 exit(1); 2415 } 2416 2417 if (init_failed && !qtest_chrdev) { 2418 error_report("falling back to %s", current_accel_name()); 2419 } 2420 2421 if (icount_enabled() && !tcg_enabled()) { 2422 error_report("-icount is not allowed with hardware virtualization"); 2423 exit(1); 2424 } 2425 } 2426 2427 static void qemu_validate_options(const QDict *machine_opts) 2428 { 2429 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); 2430 const char *shim_filename = qdict_get_try_str(machine_opts, "shim"); 2431 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); 2432 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); 2433 2434 if (kernel_filename == NULL) { 2435 if (kernel_cmdline != NULL) { 2436 error_report("-append only allowed with -kernel option"); 2437 exit(1); 2438 } 2439 2440 if (shim_filename != NULL) { 2441 error_report("-shim only allowed with -kernel option"); 2442 exit(1); 2443 } 2444 2445 if (initrd_filename != NULL) { 2446 error_report("-initrd only allowed with -kernel option"); 2447 exit(1); 2448 } 2449 } 2450 2451 if (loadvm && incoming) { 2452 error_report("'incoming' and 'loadvm' options are mutually exclusive"); 2453 exit(EXIT_FAILURE); 2454 } 2455 if (loadvm && preconfig_requested) { 2456 error_report("'preconfig' and 'loadvm' options are " 2457 "mutually exclusive"); 2458 exit(EXIT_FAILURE); 2459 } 2460 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { 2461 error_report("'preconfig' supports '-incoming defer' only"); 2462 exit(EXIT_FAILURE); 2463 } 2464 2465 #ifdef CONFIG_CURSES 2466 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { 2467 error_report("curses display cannot be used with -daemonize"); 2468 exit(1); 2469 } 2470 #endif 2471 } 2472 2473 static void qemu_process_sugar_options(void) 2474 { 2475 if (mem_prealloc) { 2476 QObject *smp = qdict_get(machine_opts_dict, "smp"); 2477 if (smp && qobject_type(smp) == QTYPE_QDICT) { 2478 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); 2479 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { 2480 const char *val = qstring_get_str(qobject_to(QString, cpus)); 2481 object_register_sugar_prop("memory-backend", "prealloc-threads", 2482 val, false); 2483 } 2484 } 2485 object_register_sugar_prop("memory-backend", "prealloc", "on", false); 2486 } 2487 } 2488 2489 /* -action processing */ 2490 2491 /* 2492 * Process all the -action parameters parsed from cmdline. 2493 */ 2494 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) 2495 { 2496 Error *local_err = NULL; 2497 QDict *qdict = qemu_opts_to_qdict(opts, NULL); 2498 QObject *ret = NULL; 2499 qmp_marshal_set_action(qdict, &ret, &local_err); 2500 qobject_unref(ret); 2501 qobject_unref(qdict); 2502 if (local_err) { 2503 error_propagate(errp, local_err); 2504 return 1; 2505 } 2506 return 0; 2507 } 2508 2509 static void qemu_process_early_options(void) 2510 { 2511 qemu_opts_foreach(qemu_find_opts("name"), 2512 parse_name, NULL, &error_fatal); 2513 2514 object_option_foreach_add(object_create_pre_sandbox); 2515 2516 #ifdef CONFIG_SECCOMP 2517 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); 2518 if (olist) { 2519 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); 2520 } 2521 #endif 2522 2523 if (qemu_opts_foreach(qemu_find_opts("action"), 2524 process_runstate_actions, NULL, &error_fatal)) { 2525 exit(1); 2526 } 2527 2528 #ifndef _WIN32 2529 qemu_opts_foreach(qemu_find_opts("add-fd"), 2530 parse_add_fd, NULL, &error_fatal); 2531 2532 qemu_opts_foreach(qemu_find_opts("add-fd"), 2533 cleanup_add_fd, NULL, &error_fatal); 2534 #endif 2535 2536 /* Open the logfile at this point and set the log mask if necessary. */ 2537 { 2538 int mask = 0; 2539 if (log_mask) { 2540 mask = qemu_str_to_log_mask(log_mask); 2541 if (!mask) { 2542 qemu_print_log_usage(stdout); 2543 exit(1); 2544 } 2545 } 2546 qemu_set_log_filename_flags(log_file, mask, &error_fatal); 2547 } 2548 2549 qemu_add_default_firmwarepath(); 2550 } 2551 2552 static void qemu_process_help_options(void) 2553 { 2554 /* 2555 * Check for -cpu help and -device help before we call select_machine(), 2556 * which will return an error if the architecture has no default machine 2557 * type and the user did not specify one, so that the user doesn't need 2558 * to say '-cpu help -machine something'. 2559 */ 2560 if (cpu_option && is_help_option(cpu_option)) { 2561 list_cpus(); 2562 exit(0); 2563 } 2564 2565 if (qemu_opts_foreach(qemu_find_opts("device"), 2566 device_help_func, NULL, NULL)) { 2567 exit(0); 2568 } 2569 2570 /* -L help lists the data directories and exits. */ 2571 if (list_data_dirs) { 2572 qemu_list_data_dirs(); 2573 exit(0); 2574 } 2575 } 2576 2577 static void qemu_maybe_daemonize(const char *pid_file) 2578 { 2579 Error *err = NULL; 2580 2581 os_daemonize(); 2582 rcu_disable_atfork(); 2583 2584 if (pid_file) { 2585 char *pid_file_realpath = NULL; 2586 2587 if (!qemu_write_pidfile(pid_file, &err)) { 2588 error_reportf_err(err, "cannot create PID file: "); 2589 exit(1); 2590 } 2591 2592 pid_file_realpath = g_malloc0(PATH_MAX); 2593 if (!realpath(pid_file, pid_file_realpath)) { 2594 if (errno != ENOENT) { 2595 warn_report("not removing PID file on exit: cannot resolve PID " 2596 "file path: %s: %s", pid_file, strerror(errno)); 2597 } 2598 return; 2599 } 2600 2601 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { 2602 .notifier = { 2603 .notify = qemu_unlink_pidfile, 2604 }, 2605 .pid_file_realpath = pid_file_realpath, 2606 }; 2607 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); 2608 } 2609 } 2610 2611 static void qemu_init_displays(void) 2612 { 2613 DisplayState *ds; 2614 2615 /* init local displays */ 2616 ds = init_displaystate(); 2617 qemu_display_init(ds, &dpy); 2618 2619 /* must be after terminal init, SDL library changes signal handlers */ 2620 os_setup_signal_handling(); 2621 2622 /* init remote displays */ 2623 #ifdef CONFIG_VNC 2624 qemu_opts_foreach(qemu_find_opts("vnc"), 2625 vnc_init_func, NULL, &error_fatal); 2626 #endif 2627 2628 if (using_spice) { 2629 qemu_spice.display_init(); 2630 } 2631 } 2632 2633 static void qemu_init_board(void) 2634 { 2635 /* process plugin before CPUs are created, but once -smp has been parsed */ 2636 qemu_plugin_load_list(&plugin_list, &error_fatal); 2637 2638 /* From here on we enter MACHINE_PHASE_INITIALIZED. */ 2639 machine_run_board_init(current_machine, mem_path, &error_fatal); 2640 2641 drive_check_orphaned(); 2642 2643 realtime_init(); 2644 } 2645 2646 static void qemu_create_cli_devices(void) 2647 { 2648 DeviceOption *opt; 2649 2650 soundhw_init(); 2651 2652 qemu_opts_foreach(qemu_find_opts("fw_cfg"), 2653 parse_fw_cfg, fw_cfg_find(), &error_fatal); 2654 2655 /* init USB devices */ 2656 if (machine_usb(current_machine)) { 2657 if (foreach_device_config(DEV_USB, usb_parse) < 0) 2658 exit(1); 2659 } 2660 2661 /* init generic devices */ 2662 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); 2663 qemu_opts_foreach(qemu_find_opts("device"), 2664 device_init_func, NULL, &error_fatal); 2665 QTAILQ_FOREACH(opt, &device_opts, next) { 2666 QObject *ret_data = NULL; 2667 2668 loc_push_restore(&opt->loc); 2669 qmp_device_add(opt->opts, &ret_data, &error_fatal); 2670 assert(ret_data == NULL); /* error_fatal aborts */ 2671 loc_pop(&opt->loc); 2672 } 2673 rom_reset_order_override(); 2674 } 2675 2676 static bool qemu_machine_creation_done(Error **errp) 2677 { 2678 MachineState *machine = MACHINE(qdev_get_machine()); 2679 2680 /* Did we create any drives that we failed to create a device for? */ 2681 drive_check_orphaned(); 2682 2683 /* Don't warn about the default network setup that you get if 2684 * no command line -net or -netdev options are specified. There 2685 * are two cases that we would otherwise complain about: 2686 * (1) board doesn't support a NIC but the implicit "-net nic" 2687 * requested one 2688 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" 2689 * sets up a nic that isn't connected to anything. 2690 */ 2691 if (!default_net && (!qtest_enabled() || has_defaults)) { 2692 net_check_clients(); 2693 } 2694 2695 qdev_prop_check_globals(); 2696 2697 qdev_machine_creation_done(); 2698 2699 if (machine->cgs && !machine->cgs->ready) { 2700 error_setg(errp, "accelerator does not support confidential guest %s", 2701 object_get_typename(OBJECT(machine->cgs))); 2702 exit(1); 2703 } 2704 2705 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { 2706 error_setg(errp, "could not start gdbserver"); 2707 return false; 2708 } 2709 if (!vga_interface_created && !default_vga && 2710 vga_interface_type != VGA_NONE) { 2711 warn_report("A -vga option was passed but this machine " 2712 "type does not use that option; " 2713 "No VGA device has been created"); 2714 } 2715 return true; 2716 } 2717 2718 void qmp_x_exit_preconfig(Error **errp) 2719 { 2720 if (phase_check(PHASE_MACHINE_INITIALIZED)) { 2721 error_setg(errp, "The command is permitted only before machine initialization"); 2722 return; 2723 } 2724 2725 qemu_init_board(); 2726 qemu_create_cli_devices(); 2727 if (!qemu_machine_creation_done(errp)) { 2728 return; 2729 } 2730 2731 if (loadvm) { 2732 RunState state = autostart ? RUN_STATE_RUNNING : runstate_get(); 2733 load_snapshot(loadvm, NULL, false, NULL, &error_fatal); 2734 load_snapshot_resume(state); 2735 } 2736 if (replay_mode != REPLAY_MODE_NONE) { 2737 replay_vmstate_init(); 2738 } 2739 2740 if (incoming) { 2741 Error *local_err = NULL; 2742 if (strcmp(incoming, "defer") != 0) { 2743 qmp_migrate_incoming(incoming, false, NULL, true, true, 2744 &local_err); 2745 if (local_err) { 2746 error_reportf_err(local_err, "-incoming %s: ", incoming); 2747 exit(1); 2748 } 2749 } 2750 } else if (autostart) { 2751 qmp_cont(NULL); 2752 } 2753 } 2754 2755 void qemu_init(int argc, char **argv) 2756 { 2757 QemuOpts *opts; 2758 QemuOpts *icount_opts = NULL, *accel_opts = NULL; 2759 QemuOptsList *olist; 2760 int optind; 2761 const char *optarg; 2762 MachineClass *machine_class; 2763 bool userconfig = true; 2764 FILE *vmstate_dump_file = NULL; 2765 2766 qemu_add_opts(&qemu_drive_opts); 2767 qemu_add_drive_opts(&qemu_legacy_drive_opts); 2768 qemu_add_drive_opts(&qemu_common_drive_opts); 2769 qemu_add_drive_opts(&qemu_drive_opts); 2770 qemu_add_drive_opts(&bdrv_runtime_opts); 2771 qemu_add_opts(&qemu_chardev_opts); 2772 qemu_add_opts(&qemu_device_opts); 2773 qemu_add_opts(&qemu_netdev_opts); 2774 qemu_add_opts(&qemu_nic_opts); 2775 qemu_add_opts(&qemu_net_opts); 2776 qemu_add_opts(&qemu_rtc_opts); 2777 qemu_add_opts(&qemu_global_opts); 2778 qemu_add_opts(&qemu_mon_opts); 2779 qemu_add_opts(&qemu_trace_opts); 2780 qemu_plugin_add_opts(); 2781 qemu_add_opts(&qemu_option_rom_opts); 2782 qemu_add_opts(&qemu_accel_opts); 2783 qemu_add_opts(&qemu_mem_opts); 2784 qemu_add_opts(&qemu_smp_opts); 2785 qemu_add_opts(&qemu_boot_opts); 2786 qemu_add_opts(&qemu_add_fd_opts); 2787 qemu_add_opts(&qemu_object_opts); 2788 qemu_add_opts(&qemu_tpmdev_opts); 2789 qemu_add_opts(&qemu_overcommit_opts); 2790 qemu_add_opts(&qemu_msg_opts); 2791 qemu_add_opts(&qemu_name_opts); 2792 qemu_add_opts(&qemu_numa_opts); 2793 qemu_add_opts(&qemu_icount_opts); 2794 qemu_add_opts(&qemu_semihosting_config_opts); 2795 qemu_add_opts(&qemu_fw_cfg_opts); 2796 qemu_add_opts(&qemu_action_opts); 2797 qemu_add_run_with_opts(); 2798 module_call_init(MODULE_INIT_OPTS); 2799 2800 error_init(argv[0]); 2801 qemu_init_exec_dir(argv[0]); 2802 2803 os_setup_limits(); 2804 2805 qemu_init_arch_modules(); 2806 2807 qemu_init_subsystems(); 2808 2809 /* first pass of option parsing */ 2810 optind = 1; 2811 while (optind < argc) { 2812 if (argv[optind][0] != '-') { 2813 /* disk image */ 2814 optind++; 2815 } else { 2816 const QEMUOption *popt; 2817 2818 popt = lookup_opt(argc, argv, &optarg, &optind); 2819 switch (popt->index) { 2820 case QEMU_OPTION_nouserconfig: 2821 userconfig = false; 2822 break; 2823 } 2824 } 2825 } 2826 2827 machine_opts_dict = qdict_new(); 2828 if (userconfig) { 2829 qemu_read_default_config_file(&error_fatal); 2830 } 2831 2832 /* second pass of option parsing */ 2833 optind = 1; 2834 for(;;) { 2835 if (optind >= argc) 2836 break; 2837 if (argv[optind][0] != '-') { 2838 loc_set_cmdline(argv, optind, 1); 2839 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); 2840 } else { 2841 const QEMUOption *popt; 2842 2843 popt = lookup_opt(argc, argv, &optarg, &optind); 2844 if (!(popt->arch_mask & arch_type)) { 2845 error_report("Option not supported for this target"); 2846 exit(1); 2847 } 2848 switch(popt->index) { 2849 case QEMU_OPTION_cpu: 2850 /* hw initialization will check this */ 2851 cpu_option = optarg; 2852 break; 2853 case QEMU_OPTION_hda: 2854 case QEMU_OPTION_hdb: 2855 case QEMU_OPTION_hdc: 2856 case QEMU_OPTION_hdd: 2857 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, 2858 HD_OPTS); 2859 break; 2860 case QEMU_OPTION_blockdev: 2861 { 2862 Visitor *v; 2863 BlockdevOptionsQueueEntry *bdo; 2864 2865 v = qobject_input_visitor_new_str(optarg, "driver", 2866 &error_fatal); 2867 2868 bdo = g_new(BlockdevOptionsQueueEntry, 1); 2869 visit_type_BlockdevOptions(v, NULL, &bdo->bdo, 2870 &error_fatal); 2871 visit_free(v); 2872 loc_save(&bdo->loc); 2873 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); 2874 break; 2875 } 2876 case QEMU_OPTION_drive: 2877 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), 2878 optarg, false); 2879 if (opts == NULL) { 2880 exit(1); 2881 } 2882 break; 2883 case QEMU_OPTION_set: 2884 qemu_set_option(optarg, &error_fatal); 2885 break; 2886 case QEMU_OPTION_global: 2887 if (qemu_global_option(optarg) != 0) 2888 exit(1); 2889 break; 2890 case QEMU_OPTION_mtdblock: 2891 drive_add(IF_MTD, -1, optarg, MTD_OPTS); 2892 break; 2893 case QEMU_OPTION_sd: 2894 drive_add(IF_SD, -1, optarg, SD_OPTS); 2895 break; 2896 case QEMU_OPTION_pflash: 2897 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); 2898 break; 2899 case QEMU_OPTION_snapshot: 2900 snapshot = 1; 2901 replay_add_blocker("-snapshot"); 2902 break; 2903 case QEMU_OPTION_numa: 2904 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), 2905 optarg, true); 2906 if (!opts) { 2907 exit(1); 2908 } 2909 break; 2910 case QEMU_OPTION_display: 2911 parse_display(optarg); 2912 break; 2913 case QEMU_OPTION_nographic: 2914 qdict_put_str(machine_opts_dict, "graphics", "off"); 2915 nographic = true; 2916 dpy.type = DISPLAY_TYPE_NONE; 2917 break; 2918 case QEMU_OPTION_kernel: 2919 qdict_put_str(machine_opts_dict, "kernel", optarg); 2920 break; 2921 case QEMU_OPTION_shim: 2922 qdict_put_str(machine_opts_dict, "shim", optarg); 2923 break; 2924 case QEMU_OPTION_initrd: 2925 qdict_put_str(machine_opts_dict, "initrd", optarg); 2926 break; 2927 case QEMU_OPTION_append: 2928 qdict_put_str(machine_opts_dict, "append", optarg); 2929 break; 2930 case QEMU_OPTION_dtb: 2931 qdict_put_str(machine_opts_dict, "dtb", optarg); 2932 break; 2933 case QEMU_OPTION_cdrom: 2934 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); 2935 break; 2936 case QEMU_OPTION_boot: 2937 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); 2938 break; 2939 case QEMU_OPTION_fda: 2940 case QEMU_OPTION_fdb: 2941 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, 2942 optarg, FD_OPTS); 2943 break; 2944 case QEMU_OPTION_no_fd_bootchk: 2945 qdict_put_str(machine_opts_dict, "fd-bootchk", "off"); 2946 break; 2947 case QEMU_OPTION_netdev: 2948 default_net = 0; 2949 if (netdev_is_modern(optarg)) { 2950 netdev_parse_modern(optarg); 2951 } else { 2952 net_client_parse(qemu_find_opts("netdev"), optarg); 2953 } 2954 break; 2955 case QEMU_OPTION_nic: 2956 default_net = 0; 2957 net_client_parse(qemu_find_opts("nic"), optarg); 2958 break; 2959 case QEMU_OPTION_net: 2960 default_net = 0; 2961 net_client_parse(qemu_find_opts("net"), optarg); 2962 break; 2963 #ifdef CONFIG_LIBISCSI 2964 case QEMU_OPTION_iscsi: 2965 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), 2966 optarg, false); 2967 if (!opts) { 2968 exit(1); 2969 } 2970 break; 2971 #endif 2972 case QEMU_OPTION_audiodev: 2973 default_audio = 0; 2974 audio_parse_option(optarg); 2975 break; 2976 case QEMU_OPTION_audio: { 2977 bool help; 2978 char *model = NULL; 2979 Audiodev *dev = NULL; 2980 Visitor *v; 2981 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); 2982 default_audio = 0; 2983 if (help || (qdict_haskey(dict, "driver") && 2984 is_help_option(qdict_get_str(dict, "driver")))) { 2985 audio_help(); 2986 exit(EXIT_SUCCESS); 2987 } 2988 if (!qdict_haskey(dict, "id")) { 2989 qdict_put_str(dict, "id", "audiodev0"); 2990 } 2991 if (qdict_haskey(dict, "model")) { 2992 model = g_strdup(qdict_get_str(dict, "model")); 2993 qdict_del(dict, "model"); 2994 if (is_help_option(model)) { 2995 show_valid_soundhw(); 2996 exit(0); 2997 } 2998 } 2999 v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 3000 qobject_unref(dict); 3001 visit_type_Audiodev(v, NULL, &dev, &error_fatal); 3002 visit_free(v); 3003 if (model) { 3004 audio_define(dev); 3005 select_soundhw(model, dev->id); 3006 g_free(model); 3007 } else { 3008 audio_define_default(dev, &error_fatal); 3009 } 3010 break; 3011 } 3012 case QEMU_OPTION_h: 3013 help(0); 3014 break; 3015 case QEMU_OPTION_version: 3016 version(); 3017 exit(0); 3018 break; 3019 case QEMU_OPTION_m: 3020 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); 3021 if (opts == NULL) { 3022 exit(1); 3023 } 3024 break; 3025 #ifdef CONFIG_TPM 3026 case QEMU_OPTION_tpmdev: 3027 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { 3028 exit(1); 3029 } 3030 break; 3031 #endif 3032 case QEMU_OPTION_mempath: 3033 mem_path = optarg; 3034 break; 3035 case QEMU_OPTION_mem_prealloc: 3036 mem_prealloc = 1; 3037 break; 3038 case QEMU_OPTION_d: 3039 log_mask = optarg; 3040 break; 3041 case QEMU_OPTION_D: 3042 log_file = optarg; 3043 break; 3044 case QEMU_OPTION_DFILTER: 3045 qemu_set_dfilter_ranges(optarg, &error_fatal); 3046 break; 3047 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) 3048 case QEMU_OPTION_perfmap: 3049 perf_enable_perfmap(); 3050 break; 3051 case QEMU_OPTION_jitdump: 3052 perf_enable_jitdump(); 3053 break; 3054 #endif 3055 case QEMU_OPTION_seed: 3056 qemu_guest_random_seed_main(optarg, &error_fatal); 3057 break; 3058 case QEMU_OPTION_s: 3059 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); 3060 break; 3061 case QEMU_OPTION_gdb: 3062 add_device_config(DEV_GDB, optarg); 3063 break; 3064 case QEMU_OPTION_L: 3065 if (is_help_option(optarg)) { 3066 list_data_dirs = true; 3067 } else { 3068 qemu_add_data_dir(g_strdup(optarg)); 3069 } 3070 break; 3071 case QEMU_OPTION_bios: 3072 qdict_put_str(machine_opts_dict, "firmware", optarg); 3073 break; 3074 case QEMU_OPTION_S: 3075 autostart = 0; 3076 break; 3077 case QEMU_OPTION_k: 3078 keyboard_layout = optarg; 3079 break; 3080 case QEMU_OPTION_vga: 3081 vga_model = optarg; 3082 default_vga = 0; 3083 break; 3084 case QEMU_OPTION_g: 3085 { 3086 const char *p; 3087 int w, h, depth; 3088 p = optarg; 3089 w = strtol(p, (char **)&p, 10); 3090 if (w <= 0) { 3091 graphic_error: 3092 error_report("invalid resolution or depth"); 3093 exit(1); 3094 } 3095 if (*p != 'x') 3096 goto graphic_error; 3097 p++; 3098 h = strtol(p, (char **)&p, 10); 3099 if (h <= 0) 3100 goto graphic_error; 3101 if (*p == 'x') { 3102 p++; 3103 depth = strtol(p, (char **)&p, 10); 3104 if (depth != 1 && depth != 2 && depth != 4 && 3105 depth != 8 && depth != 15 && depth != 16 && 3106 depth != 24 && depth != 32) 3107 goto graphic_error; 3108 } else if (*p == '\0') { 3109 depth = graphic_depth; 3110 } else { 3111 goto graphic_error; 3112 } 3113 3114 graphic_width = w; 3115 graphic_height = h; 3116 graphic_depth = depth; 3117 } 3118 break; 3119 case QEMU_OPTION_echr: 3120 { 3121 char *r; 3122 term_escape_char = strtol(optarg, &r, 0); 3123 if (r == optarg) 3124 printf("Bad argument to echr\n"); 3125 break; 3126 } 3127 case QEMU_OPTION_monitor: 3128 default_monitor = 0; 3129 if (strncmp(optarg, "none", 4)) { 3130 monitor_parse(optarg, "readline", false); 3131 } 3132 break; 3133 case QEMU_OPTION_qmp: 3134 monitor_parse(optarg, "control", false); 3135 default_monitor = 0; 3136 break; 3137 case QEMU_OPTION_qmp_pretty: 3138 monitor_parse(optarg, "control", true); 3139 default_monitor = 0; 3140 break; 3141 case QEMU_OPTION_mon: 3142 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, 3143 true); 3144 if (!opts) { 3145 exit(1); 3146 } 3147 default_monitor = 0; 3148 break; 3149 case QEMU_OPTION_chardev: 3150 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), 3151 optarg, true); 3152 if (!opts) { 3153 exit(1); 3154 } 3155 break; 3156 case QEMU_OPTION_fsdev: 3157 olist = qemu_find_opts("fsdev"); 3158 if (!olist) { 3159 error_report("fsdev support is disabled"); 3160 exit(1); 3161 } 3162 opts = qemu_opts_parse_noisily(olist, optarg, true); 3163 if (!opts) { 3164 exit(1); 3165 } 3166 break; 3167 case QEMU_OPTION_virtfs: { 3168 QemuOpts *fsdev; 3169 QemuOpts *device; 3170 const char *writeout, *sock_fd, *socket, *path, *security_model, 3171 *multidevs; 3172 3173 olist = qemu_find_opts("virtfs"); 3174 if (!olist) { 3175 error_report("virtfs support is disabled"); 3176 exit(1); 3177 } 3178 opts = qemu_opts_parse_noisily(olist, optarg, true); 3179 if (!opts) { 3180 exit(1); 3181 } 3182 3183 if (qemu_opt_get(opts, "fsdriver") == NULL || 3184 qemu_opt_get(opts, "mount_tag") == NULL) { 3185 error_report("Usage: -virtfs fsdriver,mount_tag=tag"); 3186 exit(1); 3187 } 3188 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), 3189 qemu_opts_id(opts) ?: 3190 qemu_opt_get(opts, "mount_tag"), 3191 1, NULL); 3192 if (!fsdev) { 3193 error_report("duplicate or invalid fsdev id: %s", 3194 qemu_opt_get(opts, "mount_tag")); 3195 exit(1); 3196 } 3197 3198 writeout = qemu_opt_get(opts, "writeout"); 3199 if (writeout) { 3200 #ifdef CONFIG_SYNC_FILE_RANGE 3201 qemu_opt_set(fsdev, "writeout", writeout, &error_abort); 3202 #else 3203 error_report("writeout=immediate not supported " 3204 "on this platform"); 3205 exit(1); 3206 #endif 3207 } 3208 qemu_opt_set(fsdev, "fsdriver", 3209 qemu_opt_get(opts, "fsdriver"), &error_abort); 3210 path = qemu_opt_get(opts, "path"); 3211 if (path) { 3212 qemu_opt_set(fsdev, "path", path, &error_abort); 3213 } 3214 security_model = qemu_opt_get(opts, "security_model"); 3215 if (security_model) { 3216 qemu_opt_set(fsdev, "security_model", security_model, 3217 &error_abort); 3218 } 3219 socket = qemu_opt_get(opts, "socket"); 3220 if (socket) { 3221 qemu_opt_set(fsdev, "socket", socket, &error_abort); 3222 } 3223 sock_fd = qemu_opt_get(opts, "sock_fd"); 3224 if (sock_fd) { 3225 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); 3226 } 3227 3228 qemu_opt_set_bool(fsdev, "readonly", 3229 qemu_opt_get_bool(opts, "readonly", 0), 3230 &error_abort); 3231 multidevs = qemu_opt_get(opts, "multidevs"); 3232 if (multidevs) { 3233 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); 3234 } 3235 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, 3236 &error_abort); 3237 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); 3238 qemu_opt_set(device, "fsdev", 3239 qemu_opts_id(fsdev), &error_abort); 3240 qemu_opt_set(device, "mount_tag", 3241 qemu_opt_get(opts, "mount_tag"), &error_abort); 3242 break; 3243 } 3244 case QEMU_OPTION_serial: 3245 add_device_config(DEV_SERIAL, optarg); 3246 default_serial = 0; 3247 if (strncmp(optarg, "mon:", 4) == 0) { 3248 default_monitor = 0; 3249 } 3250 break; 3251 case QEMU_OPTION_action: 3252 olist = qemu_find_opts("action"); 3253 if (!qemu_opts_parse_noisily(olist, optarg, false)) { 3254 exit(1); 3255 } 3256 break; 3257 case QEMU_OPTION_watchdog_action: { 3258 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); 3259 qemu_opt_set(opts, "watchdog", optarg, &error_abort); 3260 break; 3261 } 3262 case QEMU_OPTION_parallel: 3263 add_device_config(DEV_PARALLEL, optarg); 3264 default_parallel = 0; 3265 if (strncmp(optarg, "mon:", 4) == 0) { 3266 default_monitor = 0; 3267 } 3268 break; 3269 case QEMU_OPTION_debugcon: 3270 add_device_config(DEV_DEBUGCON, optarg); 3271 break; 3272 case QEMU_OPTION_loadvm: 3273 loadvm = optarg; 3274 break; 3275 case QEMU_OPTION_full_screen: 3276 dpy.has_full_screen = true; 3277 dpy.full_screen = true; 3278 break; 3279 case QEMU_OPTION_pidfile: 3280 pid_file = optarg; 3281 break; 3282 case QEMU_OPTION_win2k_hack: 3283 object_register_sugar_prop("ide-device", "win2k-install-hack", "true", true); 3284 break; 3285 case QEMU_OPTION_acpitable: 3286 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), 3287 optarg, true); 3288 if (!opts) { 3289 exit(1); 3290 } 3291 acpi_table_add(opts, &error_fatal); 3292 break; 3293 case QEMU_OPTION_smbios: 3294 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), 3295 optarg, false); 3296 if (!opts) { 3297 exit(1); 3298 } 3299 smbios_entry_add(opts, &error_fatal); 3300 break; 3301 case QEMU_OPTION_fwcfg: 3302 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), 3303 optarg, true); 3304 if (opts == NULL) { 3305 exit(1); 3306 } 3307 break; 3308 case QEMU_OPTION_preconfig: 3309 preconfig_requested = true; 3310 break; 3311 case QEMU_OPTION_enable_kvm: 3312 qdict_put_str(machine_opts_dict, "accel", "kvm"); 3313 break; 3314 case QEMU_OPTION_M: 3315 case QEMU_OPTION_machine: 3316 { 3317 bool help; 3318 3319 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); 3320 if (help) { 3321 machine_help_func(machine_opts_dict); 3322 exit(EXIT_SUCCESS); 3323 } 3324 break; 3325 } 3326 case QEMU_OPTION_accel: 3327 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), 3328 optarg, true); 3329 optarg = qemu_opt_get(accel_opts, "accel"); 3330 if (!optarg || is_help_option(optarg)) { 3331 printf("Accelerators supported in QEMU binary:\n"); 3332 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, 3333 false); 3334 for (el = accel_list; el; el = el->next) { 3335 gchar *typename = g_strdup(object_class_get_name( 3336 OBJECT_CLASS(el->data))); 3337 /* omit qtest which is used for tests only */ 3338 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && 3339 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { 3340 gchar **optname = g_strsplit(typename, 3341 ACCEL_CLASS_SUFFIX, 0); 3342 printf("%s\n", optname[0]); 3343 g_strfreev(optname); 3344 } 3345 g_free(typename); 3346 } 3347 g_slist_free(accel_list); 3348 exit(0); 3349 } 3350 break; 3351 case QEMU_OPTION_usb: 3352 qdict_put_str(machine_opts_dict, "usb", "on"); 3353 break; 3354 case QEMU_OPTION_usbdevice: 3355 qdict_put_str(machine_opts_dict, "usb", "on"); 3356 add_device_config(DEV_USB, optarg); 3357 break; 3358 case QEMU_OPTION_device: 3359 if (optarg[0] == '{') { 3360 QObject *obj = qobject_from_json(optarg, &error_fatal); 3361 DeviceOption *opt = g_new0(DeviceOption, 1); 3362 opt->opts = qobject_to(QDict, obj); 3363 loc_save(&opt->loc); 3364 assert(opt->opts != NULL); 3365 QTAILQ_INSERT_TAIL(&device_opts, opt, next); 3366 } else { 3367 if (!qemu_opts_parse_noisily(qemu_find_opts("device"), 3368 optarg, true)) { 3369 exit(1); 3370 } 3371 } 3372 break; 3373 case QEMU_OPTION_smp: 3374 machine_parse_property_opt(qemu_find_opts("smp-opts"), 3375 "smp", optarg); 3376 break; 3377 #ifdef CONFIG_VNC 3378 case QEMU_OPTION_vnc: 3379 vnc_parse(optarg); 3380 display_remote++; 3381 break; 3382 #endif 3383 case QEMU_OPTION_no_reboot: 3384 olist = qemu_find_opts("action"); 3385 qemu_opts_parse_noisily(olist, "reboot=shutdown", false); 3386 break; 3387 case QEMU_OPTION_no_shutdown: 3388 olist = qemu_find_opts("action"); 3389 qemu_opts_parse_noisily(olist, "shutdown=pause", false); 3390 break; 3391 case QEMU_OPTION_uuid: 3392 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { 3393 error_report("failed to parse UUID string: wrong format"); 3394 exit(1); 3395 } 3396 qemu_uuid_set = true; 3397 break; 3398 case QEMU_OPTION_option_rom: 3399 if (nb_option_roms >= MAX_OPTION_ROMS) { 3400 error_report("too many option ROMs"); 3401 exit(1); 3402 } 3403 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), 3404 optarg, true); 3405 if (!opts) { 3406 exit(1); 3407 } 3408 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); 3409 option_rom[nb_option_roms].bootindex = 3410 qemu_opt_get_number(opts, "bootindex", -1); 3411 if (!option_rom[nb_option_roms].name) { 3412 error_report("Option ROM file is not specified"); 3413 exit(1); 3414 } 3415 nb_option_roms++; 3416 break; 3417 case QEMU_OPTION_semihosting: 3418 qemu_semihosting_enable(); 3419 break; 3420 case QEMU_OPTION_semihosting_config: 3421 if (qemu_semihosting_config_options(optarg) != 0) { 3422 exit(1); 3423 } 3424 break; 3425 case QEMU_OPTION_name: 3426 opts = qemu_opts_parse_noisily(qemu_find_opts("name"), 3427 optarg, true); 3428 if (!opts) { 3429 exit(1); 3430 } 3431 /* Capture guest name if -msg guest-name is used later */ 3432 error_guest_name = qemu_opt_get(opts, "guest"); 3433 break; 3434 case QEMU_OPTION_prom_env: 3435 if (nb_prom_envs >= MAX_PROM_ENVS) { 3436 error_report("too many prom variables"); 3437 exit(1); 3438 } 3439 prom_envs[nb_prom_envs] = optarg; 3440 nb_prom_envs++; 3441 break; 3442 case QEMU_OPTION_old_param: 3443 old_param = 1; 3444 break; 3445 case QEMU_OPTION_rtc: 3446 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, 3447 false); 3448 if (!opts) { 3449 exit(1); 3450 } 3451 break; 3452 case QEMU_OPTION_icount: 3453 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), 3454 optarg, true); 3455 if (!icount_opts) { 3456 exit(1); 3457 } 3458 break; 3459 case QEMU_OPTION_incoming: 3460 if (!incoming) { 3461 runstate_set(RUN_STATE_INMIGRATE); 3462 } 3463 incoming = optarg; 3464 break; 3465 case QEMU_OPTION_only_migratable: 3466 only_migratable = 1; 3467 break; 3468 case QEMU_OPTION_nodefaults: 3469 has_defaults = 0; 3470 break; 3471 case QEMU_OPTION_xen_domid: 3472 if (!(accel_find("xen")) && !(accel_find("kvm"))) { 3473 error_report("Option not supported for this target"); 3474 exit(1); 3475 } 3476 xen_domid = atoi(optarg); 3477 break; 3478 case QEMU_OPTION_xen_attach: 3479 if (!(accel_find("xen"))) { 3480 error_report("Option not supported for this target"); 3481 exit(1); 3482 } 3483 xen_mode = XEN_ATTACH; 3484 break; 3485 case QEMU_OPTION_xen_domid_restrict: 3486 if (!(accel_find("xen"))) { 3487 error_report("Option not supported for this target"); 3488 exit(1); 3489 } 3490 xen_domid_restrict = true; 3491 break; 3492 case QEMU_OPTION_trace: 3493 trace_opt_parse(optarg); 3494 break; 3495 case QEMU_OPTION_plugin: 3496 qemu_plugin_opt_parse(optarg, &plugin_list); 3497 break; 3498 case QEMU_OPTION_readconfig: 3499 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); 3500 break; 3501 #ifdef CONFIG_SPICE 3502 case QEMU_OPTION_spice: 3503 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false); 3504 if (!opts) { 3505 exit(1); 3506 } 3507 display_remote++; 3508 break; 3509 #endif 3510 case QEMU_OPTION_qtest: 3511 qtest_chrdev = optarg; 3512 break; 3513 case QEMU_OPTION_qtest_log: 3514 qtest_log = optarg; 3515 break; 3516 case QEMU_OPTION_sandbox: 3517 olist = qemu_find_opts("sandbox"); 3518 if (!olist) { 3519 #ifndef CONFIG_SECCOMP 3520 error_report("-sandbox support is not enabled " 3521 "in this QEMU binary"); 3522 #endif 3523 exit(1); 3524 } 3525 3526 opts = qemu_opts_parse_noisily(olist, optarg, true); 3527 if (!opts) { 3528 exit(1); 3529 } 3530 break; 3531 case QEMU_OPTION_add_fd: 3532 #ifndef _WIN32 3533 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), 3534 optarg, false); 3535 if (!opts) { 3536 exit(1); 3537 } 3538 #else 3539 error_report("File descriptor passing is disabled on this " 3540 "platform"); 3541 exit(1); 3542 #endif 3543 break; 3544 case QEMU_OPTION_object: 3545 object_option_parse(optarg); 3546 break; 3547 case QEMU_OPTION_overcommit: 3548 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), 3549 optarg, false); 3550 if (!opts) { 3551 exit(1); 3552 } 3553 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", enable_mlock); 3554 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", enable_cpu_pm); 3555 break; 3556 case QEMU_OPTION_compat: 3557 { 3558 CompatPolicy *opts_policy; 3559 Visitor *v; 3560 3561 v = qobject_input_visitor_new_str(optarg, NULL, 3562 &error_fatal); 3563 3564 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); 3565 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); 3566 3567 qapi_free_CompatPolicy(opts_policy); 3568 visit_free(v); 3569 break; 3570 } 3571 case QEMU_OPTION_msg: 3572 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, 3573 false); 3574 if (!opts) { 3575 exit(1); 3576 } 3577 configure_msg(opts); 3578 break; 3579 case QEMU_OPTION_dump_vmstate: 3580 if (vmstate_dump_file) { 3581 error_report("only one '-dump-vmstate' " 3582 "option may be given"); 3583 exit(1); 3584 } 3585 vmstate_dump_file = fopen(optarg, "w"); 3586 if (vmstate_dump_file == NULL) { 3587 error_report("open %s: %s", optarg, strerror(errno)); 3588 exit(1); 3589 } 3590 break; 3591 case QEMU_OPTION_enable_sync_profile: 3592 qsp_enable(); 3593 break; 3594 case QEMU_OPTION_nouserconfig: 3595 /* Nothing to be parsed here. Especially, do not error out below. */ 3596 break; 3597 #if defined(CONFIG_POSIX) 3598 case QEMU_OPTION_runas: 3599 warn_report("-runas is deprecated, use '-run-with user=...' instead"); 3600 if (!os_set_runas(optarg)) { 3601 error_report("User \"%s\" doesn't exist" 3602 " (and is not <uid>:<gid>)", 3603 optarg); 3604 exit(1); 3605 } 3606 break; 3607 case QEMU_OPTION_daemonize: 3608 os_set_daemonize(true); 3609 break; 3610 case QEMU_OPTION_run_with: { 3611 const char *str; 3612 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), 3613 optarg, false); 3614 if (!opts) { 3615 exit(1); 3616 } 3617 #if defined(CONFIG_LINUX) 3618 if (qemu_opt_get_bool(opts, "async-teardown", false)) { 3619 init_async_teardown(); 3620 } 3621 #endif 3622 str = qemu_opt_get(opts, "chroot"); 3623 if (str) { 3624 os_set_chroot(str); 3625 } 3626 str = qemu_opt_get(opts, "user"); 3627 if (str) { 3628 if (!os_set_runas(str)) { 3629 error_report("User \"%s\" doesn't exist" 3630 " (and is not <uid>:<gid>)", 3631 optarg); 3632 exit(1); 3633 } 3634 } 3635 3636 break; 3637 } 3638 #endif /* CONFIG_POSIX */ 3639 3640 default: 3641 error_report("Option not supported in this build"); 3642 exit(1); 3643 } 3644 } 3645 } 3646 /* 3647 * Clear error location left behind by the loop. 3648 * Best done right after the loop. Do not insert code here! 3649 */ 3650 loc_set_none(); 3651 3652 qemu_validate_options(machine_opts_dict); 3653 qemu_process_sugar_options(); 3654 3655 /* 3656 * These options affect everything else and should be processed 3657 * before daemonizing. 3658 */ 3659 qemu_process_early_options(); 3660 3661 qemu_process_help_options(); 3662 qemu_maybe_daemonize(pid_file); 3663 3664 /* 3665 * The trace backend must be initialized after daemonizing. 3666 * trace_init_backends() will call st_init(), which will create the 3667 * trace thread in the parent, and also register st_flush_trace_buffer() 3668 * in atexit(). This function will force the parent to wait for the 3669 * writeout thread to finish, which will not occur, and the parent 3670 * process will be left in the host. 3671 */ 3672 if (!trace_init_backends()) { 3673 exit(1); 3674 } 3675 trace_init_file(); 3676 3677 qemu_init_main_loop(&error_fatal); 3678 cpu_timers_init(); 3679 3680 user_register_global_props(); 3681 replay_configure(icount_opts); 3682 3683 configure_rtc(qemu_find_opts_singleton("rtc")); 3684 3685 /* Transfer QemuOpts options into machine options */ 3686 parse_memory_options(); 3687 3688 qemu_create_machine(machine_opts_dict); 3689 3690 suspend_mux_open(); 3691 3692 qemu_disable_default_devices(); 3693 qemu_setup_display(); 3694 qemu_create_default_devices(); 3695 qemu_create_early_backends(); 3696 3697 qemu_apply_legacy_machine_options(machine_opts_dict); 3698 qemu_apply_machine_options(machine_opts_dict); 3699 qobject_unref(machine_opts_dict); 3700 phase_advance(PHASE_MACHINE_CREATED); 3701 3702 /* 3703 * Note: uses machine properties such as kernel-irqchip, must run 3704 * after qemu_apply_machine_options. 3705 */ 3706 configure_accelerators(argv[0]); 3707 phase_advance(PHASE_ACCEL_CREATED); 3708 3709 /* 3710 * Beware, QOM objects created before this point miss global and 3711 * compat properties. 3712 * 3713 * Global properties get set up by qdev_prop_register_global(), 3714 * called from user_register_global_props(), and certain option 3715 * desugaring. Also in CPU feature desugaring (buried in 3716 * parse_cpu_option()), which happens below this point, but may 3717 * only target the CPU type, which can only be created after 3718 * parse_cpu_option() returned the type. 3719 * 3720 * Machine compat properties: object_set_machine_compat_props(). 3721 * Accelerator compat props: object_set_accelerator_compat_props(), 3722 * called from do_configure_accelerator(). 3723 */ 3724 3725 machine_class = MACHINE_GET_CLASS(current_machine); 3726 if (!qtest_enabled() && machine_class->deprecation_reason) { 3727 warn_report("Machine type '%s' is deprecated: %s", 3728 machine_class->name, machine_class->deprecation_reason); 3729 } 3730 3731 /* 3732 * Create backends before creating migration objects, so that it can 3733 * check against compatibilities on the backend memories (e.g. postcopy 3734 * over memory-backend-file objects). 3735 */ 3736 qemu_create_late_backends(); 3737 phase_advance(PHASE_LATE_BACKENDS_CREATED); 3738 3739 /* 3740 * Note: creates a QOM object, must run only after global and 3741 * compat properties have been set up. 3742 */ 3743 migration_object_init(); 3744 3745 /* parse features once if machine provides default cpu_type */ 3746 current_machine->cpu_type = machine_class_default_cpu_type(machine_class); 3747 if (cpu_option) { 3748 current_machine->cpu_type = parse_cpu_option(cpu_option); 3749 } 3750 /* NB: for machine none cpu_type could STILL be NULL here! */ 3751 3752 qemu_resolve_machine_memdev(); 3753 parse_numa_opts(current_machine); 3754 3755 if (vmstate_dump_file) { 3756 /* dump and exit */ 3757 module_load_qom_all(); 3758 dump_vmstate_json_to_file(vmstate_dump_file); 3759 exit(0); 3760 } 3761 3762 if (!preconfig_requested) { 3763 qmp_x_exit_preconfig(&error_fatal); 3764 } 3765 qemu_init_displays(); 3766 accel_setup_post(current_machine); 3767 os_setup_post(); 3768 resume_mux_open(); 3769 } 3770