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