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 = "cores", 746 .type = QEMU_OPT_NUMBER, 747 }, { 748 .name = "threads", 749 .type = QEMU_OPT_NUMBER, 750 }, { 751 .name = "maxcpus", 752 .type = QEMU_OPT_NUMBER, 753 }, 754 { /*End of list */ } 755 }, 756 }; 757 758 #if defined(CONFIG_POSIX) 759 static QemuOptsList qemu_run_with_opts = { 760 .name = "run-with", 761 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head), 762 .desc = { 763 #if defined(CONFIG_LINUX) 764 { 765 .name = "async-teardown", 766 .type = QEMU_OPT_BOOL, 767 }, 768 #endif 769 { 770 .name = "chroot", 771 .type = QEMU_OPT_STRING, 772 }, 773 { /* end of list */ } 774 }, 775 }; 776 777 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts) 778 779 #else 780 781 #define qemu_add_run_with_opts() 782 783 #endif /* CONFIG_POSIX */ 784 785 static void realtime_init(void) 786 { 787 if (enable_mlock) { 788 if (os_mlock() < 0) { 789 error_report("locking memory failed"); 790 exit(1); 791 } 792 } 793 } 794 795 796 static void configure_msg(QemuOpts *opts) 797 { 798 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false); 799 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false); 800 } 801 802 803 /***********************************************************/ 804 /* USB devices */ 805 806 static int usb_device_add(const char *devname) 807 { 808 USBDevice *dev = NULL; 809 810 if (!machine_usb(current_machine)) { 811 return -1; 812 } 813 814 dev = usbdevice_create(devname); 815 if (!dev) 816 return -1; 817 818 return 0; 819 } 820 821 static int usb_parse(const char *cmdline) 822 { 823 int r; 824 r = usb_device_add(cmdline); 825 if (r < 0) { 826 error_report("could not add USB device '%s'", cmdline); 827 } 828 return r; 829 } 830 831 /***********************************************************/ 832 /* machine registration */ 833 834 static MachineClass *find_machine(const char *name, GSList *machines) 835 { 836 GSList *el; 837 838 for (el = machines; el; el = el->next) { 839 MachineClass *mc = el->data; 840 841 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) { 842 return mc; 843 } 844 } 845 846 return NULL; 847 } 848 849 static MachineClass *find_default_machine(GSList *machines) 850 { 851 GSList *el; 852 MachineClass *default_machineclass = NULL; 853 854 for (el = machines; el; el = el->next) { 855 MachineClass *mc = el->data; 856 857 if (mc->is_default) { 858 assert(default_machineclass == NULL && "Multiple default machines"); 859 default_machineclass = mc; 860 } 861 } 862 863 return default_machineclass; 864 } 865 866 static void version(void) 867 { 868 printf("QEMU emulator version " QEMU_FULL_VERSION "\n" 869 QEMU_COPYRIGHT "\n"); 870 } 871 872 static void help(int exitcode) 873 { 874 version(); 875 printf("usage: %s [options] [disk_image]\n\n" 876 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n", 877 g_get_prgname()); 878 879 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 880 if ((arch_mask) & arch_type) \ 881 fputs(opt_help, stdout); 882 883 #define ARCHHEADING(text, arch_mask) \ 884 if ((arch_mask) & arch_type) \ 885 puts(stringify(text)); 886 887 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL) 888 889 #include "qemu-options.def" 890 891 printf("\nDuring emulation, the following keys are useful:\n" 892 "ctrl-alt-f toggle full screen\n" 893 "ctrl-alt-n switch to virtual console 'n'\n" 894 "ctrl-alt toggle mouse and keyboard grab\n" 895 "\n" 896 "When using -nographic, press 'ctrl-a h' to get some help.\n" 897 "\n" 898 QEMU_HELP_BOTTOM "\n"); 899 900 exit(exitcode); 901 } 902 903 enum { 904 905 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 906 opt_enum, 907 #define DEFHEADING(text) 908 #define ARCHHEADING(text, arch_mask) 909 910 #include "qemu-options.def" 911 }; 912 913 #define HAS_ARG 0x0001 914 915 typedef struct QEMUOption { 916 const char *name; 917 int flags; 918 int index; 919 uint32_t arch_mask; 920 } QEMUOption; 921 922 static const QEMUOption qemu_options[] = { 923 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL }, 924 925 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 926 { option, opt_arg, opt_enum, arch_mask }, 927 #define DEFHEADING(text) 928 #define ARCHHEADING(text, arch_mask) 929 930 #include "qemu-options.def" 931 { /* end of list */ } 932 }; 933 934 typedef struct VGAInterfaceInfo { 935 const char *opt_name; /* option name */ 936 const char *name; /* human-readable name */ 937 /* Class names indicating that support is available. 938 * If no class is specified, the interface is always available */ 939 const char *class_names[2]; 940 } VGAInterfaceInfo; 941 942 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = { 943 [VGA_NONE] = { 944 .opt_name = "none", 945 .name = "no graphic card", 946 }, 947 [VGA_STD] = { 948 .opt_name = "std", 949 .name = "standard VGA", 950 .class_names = { "VGA", "isa-vga" }, 951 }, 952 [VGA_CIRRUS] = { 953 .opt_name = "cirrus", 954 .name = "Cirrus VGA", 955 .class_names = { "cirrus-vga", "isa-cirrus-vga" }, 956 }, 957 [VGA_VMWARE] = { 958 .opt_name = "vmware", 959 .name = "VMWare SVGA", 960 .class_names = { "vmware-svga" }, 961 }, 962 [VGA_VIRTIO] = { 963 .opt_name = "virtio", 964 .name = "Virtio VGA", 965 .class_names = { "virtio-vga" }, 966 }, 967 [VGA_QXL] = { 968 .opt_name = "qxl", 969 .name = "QXL VGA", 970 .class_names = { "qxl-vga" }, 971 }, 972 [VGA_TCX] = { 973 .opt_name = "tcx", 974 .name = "TCX framebuffer", 975 .class_names = { "sun-tcx" }, 976 }, 977 [VGA_CG3] = { 978 .opt_name = "cg3", 979 .name = "CG3 framebuffer", 980 .class_names = { "cgthree" }, 981 }, 982 #ifdef CONFIG_XEN_BACKEND 983 [VGA_XENFB] = { 984 .opt_name = "xenfb", 985 .name = "Xen paravirtualized framebuffer", 986 }, 987 #endif 988 }; 989 990 static bool vga_interface_available(VGAInterfaceType t) 991 { 992 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 993 994 assert(t < VGA_TYPE_MAX); 995 return !ti->class_names[0] || 996 module_object_class_by_name(ti->class_names[0]) || 997 module_object_class_by_name(ti->class_names[1]); 998 } 999 1000 static const char * 1001 get_default_vga_model(const MachineClass *machine_class) 1002 { 1003 if (machine_class->default_display) { 1004 for (int t = 0; t < VGA_TYPE_MAX; t++) { 1005 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1006 1007 if (ti->opt_name && vga_interface_available(t) && 1008 g_str_equal(ti->opt_name, machine_class->default_display)) { 1009 return machine_class->default_display; 1010 } 1011 } 1012 1013 warn_report_once("Default display '%s' is not available in this binary", 1014 machine_class->default_display); 1015 return NULL; 1016 } else if (vga_interface_available(VGA_CIRRUS)) { 1017 return "cirrus"; 1018 } else if (vga_interface_available(VGA_STD)) { 1019 return "std"; 1020 } 1021 1022 return NULL; 1023 } 1024 1025 static void select_vgahw(const MachineClass *machine_class, const char *p) 1026 { 1027 const char *opts; 1028 int t; 1029 1030 if (g_str_equal(p, "help")) { 1031 const char *def = get_default_vga_model(machine_class); 1032 1033 for (t = 0; t < VGA_TYPE_MAX; t++) { 1034 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1035 1036 if (vga_interface_available(t) && ti->opt_name) { 1037 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "", 1038 (def && g_str_equal(ti->opt_name, def)) ? 1039 " (default)" : ""); 1040 } 1041 } 1042 exit(0); 1043 } 1044 1045 assert(vga_interface_type == VGA_NONE); 1046 for (t = 0; t < VGA_TYPE_MAX; t++) { 1047 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1048 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) { 1049 if (!vga_interface_available(t)) { 1050 error_report("%s not available", ti->name); 1051 exit(1); 1052 } 1053 vga_interface_type = t; 1054 break; 1055 } 1056 } 1057 if (t == VGA_TYPE_MAX) { 1058 invalid_vga: 1059 error_report("unknown vga type: %s", p); 1060 exit(1); 1061 } 1062 while (*opts) { 1063 const char *nextopt; 1064 1065 if (strstart(opts, ",retrace=", &nextopt)) { 1066 opts = nextopt; 1067 if (strstart(opts, "dumb", &nextopt)) 1068 vga_retrace_method = VGA_RETRACE_DUMB; 1069 else if (strstart(opts, "precise", &nextopt)) 1070 vga_retrace_method = VGA_RETRACE_PRECISE; 1071 else goto invalid_vga; 1072 } else goto invalid_vga; 1073 opts = nextopt; 1074 } 1075 } 1076 1077 static void parse_display_qapi(const char *str) 1078 { 1079 DisplayOptions *opts; 1080 Visitor *v; 1081 1082 v = qobject_input_visitor_new_str(str, "type", &error_fatal); 1083 1084 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); 1085 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts); 1086 1087 qapi_free_DisplayOptions(opts); 1088 visit_free(v); 1089 } 1090 1091 DisplayOptions *qmp_query_display_options(Error **errp) 1092 { 1093 return QAPI_CLONE(DisplayOptions, &dpy); 1094 } 1095 1096 static void parse_display(const char *p) 1097 { 1098 if (is_help_option(p)) { 1099 qemu_display_help(); 1100 exit(0); 1101 } 1102 1103 #ifdef CONFIG_VNC 1104 const char *opts; 1105 1106 if (strstart(p, "vnc", &opts)) { 1107 /* 1108 * vnc isn't a (local) DisplayType but a protocol for remote 1109 * display access. 1110 */ 1111 if (*opts == '=') { 1112 vnc_parse(opts + 1); 1113 display_remote++; 1114 } else { 1115 error_report("VNC requires a display argument vnc=<display>"); 1116 exit(1); 1117 } 1118 return; 1119 } 1120 #endif 1121 1122 parse_display_qapi(p); 1123 } 1124 1125 static inline bool nonempty_str(const char *str) 1126 { 1127 return str && *str; 1128 } 1129 1130 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) 1131 { 1132 gchar *buf; 1133 size_t size; 1134 const char *name, *file, *str, *gen_id; 1135 FWCfgState *fw_cfg = (FWCfgState *) opaque; 1136 1137 if (fw_cfg == NULL) { 1138 error_setg(errp, "fw_cfg device not available"); 1139 return -1; 1140 } 1141 name = qemu_opt_get(opts, "name"); 1142 file = qemu_opt_get(opts, "file"); 1143 str = qemu_opt_get(opts, "string"); 1144 gen_id = qemu_opt_get(opts, "gen_id"); 1145 1146 /* we need the name, and exactly one of: file, content string, gen_id */ 1147 if (!nonempty_str(name) || 1148 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) { 1149 error_setg(errp, "name, plus exactly one of file," 1150 " string and gen_id, are needed"); 1151 return -1; 1152 } 1153 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { 1154 error_setg(errp, "name too long (max. %d char)", 1155 FW_CFG_MAX_FILE_PATH - 1); 1156 return -1; 1157 } 1158 if (nonempty_str(gen_id)) { 1159 /* 1160 * In this particular case where the content is populated 1161 * internally, the "etc/" namespace protection is relaxed, 1162 * so do not emit a warning. 1163 */ 1164 } else if (strncmp(name, "opt/", 4) != 0) { 1165 warn_report("externally provided fw_cfg item names " 1166 "should be prefixed with \"opt/\""); 1167 } 1168 if (nonempty_str(str)) { 1169 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */ 1170 buf = g_memdup(str, size); 1171 } else if (nonempty_str(gen_id)) { 1172 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) { 1173 return -1; 1174 } 1175 return 0; 1176 } else { 1177 GError *err = NULL; 1178 if (!g_file_get_contents(file, &buf, &size, &err)) { 1179 error_setg(errp, "can't load %s: %s", file, err->message); 1180 g_error_free(err); 1181 return -1; 1182 } 1183 } 1184 /* For legacy, keep user files in a specific global order. */ 1185 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); 1186 fw_cfg_add_file(fw_cfg, name, buf, size); 1187 fw_cfg_reset_order_override(fw_cfg); 1188 return 0; 1189 } 1190 1191 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) 1192 { 1193 return qdev_device_help(opts); 1194 } 1195 1196 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) 1197 { 1198 DeviceState *dev; 1199 1200 dev = qdev_device_add(opts, errp); 1201 if (!dev && *errp) { 1202 error_report_err(*errp); 1203 return -1; 1204 } else if (dev) { 1205 object_unref(OBJECT(dev)); 1206 } 1207 return 0; 1208 } 1209 1210 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1211 { 1212 Error *local_err = NULL; 1213 1214 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { 1215 if (local_err) { 1216 error_propagate(errp, local_err); 1217 return -1; 1218 } 1219 exit(0); 1220 } 1221 return 0; 1222 } 1223 1224 #ifdef CONFIG_VIRTFS 1225 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1226 { 1227 return qemu_fsdev_add(opts, errp); 1228 } 1229 #endif 1230 1231 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) 1232 { 1233 return monitor_init_opts(opts, errp); 1234 } 1235 1236 static void monitor_parse(const char *str, const char *mode, bool pretty) 1237 { 1238 static int monitor_device_index = 0; 1239 QemuOpts *opts; 1240 const char *p; 1241 char label[32]; 1242 1243 if (strstart(str, "chardev:", &p)) { 1244 snprintf(label, sizeof(label), "%s", p); 1245 } else { 1246 snprintf(label, sizeof(label), "compat_monitor%d", 1247 monitor_device_index); 1248 opts = qemu_chr_parse_compat(label, str, true); 1249 if (!opts) { 1250 error_report("parse error: %s", str); 1251 exit(1); 1252 } 1253 } 1254 1255 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); 1256 qemu_opt_set(opts, "mode", mode, &error_abort); 1257 qemu_opt_set(opts, "chardev", label, &error_abort); 1258 if (!strcmp(mode, "control")) { 1259 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); 1260 } else { 1261 assert(pretty == false); 1262 } 1263 monitor_device_index++; 1264 } 1265 1266 struct device_config { 1267 enum { 1268 DEV_USB, /* -usbdevice */ 1269 DEV_SERIAL, /* -serial */ 1270 DEV_PARALLEL, /* -parallel */ 1271 DEV_DEBUGCON, /* -debugcon */ 1272 DEV_GDB, /* -gdb, -s */ 1273 DEV_SCLP, /* s390 sclp */ 1274 } type; 1275 const char *cmdline; 1276 Location loc; 1277 QTAILQ_ENTRY(device_config) next; 1278 }; 1279 1280 static QTAILQ_HEAD(, device_config) device_configs = 1281 QTAILQ_HEAD_INITIALIZER(device_configs); 1282 1283 static void add_device_config(int type, const char *cmdline) 1284 { 1285 struct device_config *conf; 1286 1287 conf = g_malloc0(sizeof(*conf)); 1288 conf->type = type; 1289 conf->cmdline = cmdline; 1290 loc_save(&conf->loc); 1291 QTAILQ_INSERT_TAIL(&device_configs, conf, next); 1292 } 1293 1294 static int foreach_device_config(int type, int (*func)(const char *cmdline)) 1295 { 1296 struct device_config *conf; 1297 int rc; 1298 1299 QTAILQ_FOREACH(conf, &device_configs, next) { 1300 if (conf->type != type) 1301 continue; 1302 loc_push_restore(&conf->loc); 1303 rc = func(conf->cmdline); 1304 loc_pop(&conf->loc); 1305 if (rc) { 1306 return rc; 1307 } 1308 } 1309 return 0; 1310 } 1311 1312 static void qemu_disable_default_devices(void) 1313 { 1314 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1315 1316 default_driver_check_json(); 1317 qemu_opts_foreach(qemu_find_opts("device"), 1318 default_driver_check, NULL, NULL); 1319 qemu_opts_foreach(qemu_find_opts("global"), 1320 default_driver_check, NULL, NULL); 1321 1322 if (!vga_model && !default_vga) { 1323 vga_interface_type = VGA_DEVICE; 1324 vga_interface_created = true; 1325 } 1326 if (!has_defaults || machine_class->no_serial) { 1327 default_serial = 0; 1328 } 1329 if (!has_defaults || machine_class->no_parallel) { 1330 default_parallel = 0; 1331 } 1332 if (!has_defaults || machine_class->no_floppy) { 1333 default_floppy = 0; 1334 } 1335 if (!has_defaults || machine_class->no_cdrom) { 1336 default_cdrom = 0; 1337 } 1338 if (!has_defaults || machine_class->no_sdcard) { 1339 default_sdcard = 0; 1340 } 1341 if (!has_defaults) { 1342 default_audio = 0; 1343 default_monitor = 0; 1344 default_net = 0; 1345 default_vga = 0; 1346 } else { 1347 if (default_net && machine_class->default_nic && 1348 !module_object_class_by_name(machine_class->default_nic)) { 1349 warn_report("Default NIC '%s' is not available in this binary", 1350 machine_class->default_nic); 1351 default_net = 0; 1352 } 1353 } 1354 } 1355 1356 static void qemu_setup_display(void) 1357 { 1358 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { 1359 if (!qemu_display_find_default(&dpy)) { 1360 dpy.type = DISPLAY_TYPE_NONE; 1361 #if defined(CONFIG_VNC) 1362 vnc_parse("localhost:0,to=99,id=default"); 1363 display_remote++; 1364 #endif 1365 } 1366 } 1367 if (dpy.type == DISPLAY_TYPE_DEFAULT) { 1368 dpy.type = DISPLAY_TYPE_NONE; 1369 } 1370 1371 qemu_display_early_init(&dpy); 1372 } 1373 1374 static void qemu_create_default_devices(void) 1375 { 1376 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1377 const char *vc = qemu_display_get_vc(&dpy); 1378 1379 if (is_daemonized()) { 1380 /* According to documentation and historically, -nographic redirects 1381 * serial port, parallel port and monitor to stdio, which does not work 1382 * with -daemonize. We can redirect these to null instead, but since 1383 * -nographic is legacy, let's just error out. 1384 * We disallow -nographic only if all other ports are not redirected 1385 * explicitly, to not break existing legacy setups which uses 1386 * -nographic _and_ redirects all ports explicitly - this is valid 1387 * usage, -nographic is just a no-op in this case. 1388 */ 1389 if (nographic 1390 && (default_parallel || default_serial || default_monitor)) { 1391 error_report("-nographic cannot be used with -daemonize"); 1392 exit(1); 1393 } 1394 } 1395 1396 if (nographic) { 1397 if (default_parallel) { 1398 add_device_config(DEV_PARALLEL, "null"); 1399 } 1400 if (default_serial && default_monitor) { 1401 add_device_config(DEV_SERIAL, "mon:stdio"); 1402 } else { 1403 if (default_serial) { 1404 add_device_config(DEV_SERIAL, "stdio"); 1405 } 1406 if (default_monitor) { 1407 monitor_parse("stdio", "readline", false); 1408 } 1409 } 1410 } else { 1411 if (default_serial) { 1412 add_device_config(DEV_SERIAL, vc ?: "null"); 1413 } 1414 if (default_parallel) { 1415 add_device_config(DEV_PARALLEL, vc ?: "null"); 1416 } 1417 if (default_monitor && vc) { 1418 monitor_parse(vc, "readline", false); 1419 } 1420 } 1421 1422 if (default_net) { 1423 QemuOptsList *net = qemu_find_opts("net"); 1424 qemu_opts_parse(net, "nic", true, &error_abort); 1425 #ifdef CONFIG_SLIRP 1426 qemu_opts_parse(net, "user", true, &error_abort); 1427 #endif 1428 } 1429 1430 /* If no default VGA is requested, the default is "none". */ 1431 if (default_vga) { 1432 vga_model = get_default_vga_model(machine_class); 1433 } 1434 if (vga_model) { 1435 select_vgahw(machine_class, vga_model); 1436 } 1437 } 1438 1439 static int serial_parse(const char *devname) 1440 { 1441 int index = num_serial_hds; 1442 1443 serial_hds = g_renew(Chardev *, serial_hds, index + 1); 1444 1445 if (strcmp(devname, "none") == 0) { 1446 /* Don't allocate a serial device for this index */ 1447 serial_hds[index] = NULL; 1448 } else { 1449 char label[32]; 1450 snprintf(label, sizeof(label), "serial%d", index); 1451 1452 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1453 if (!serial_hds[index]) { 1454 error_report("could not connect serial device" 1455 " to character backend '%s'", devname); 1456 return -1; 1457 } 1458 } 1459 num_serial_hds++; 1460 return 0; 1461 } 1462 1463 Chardev *serial_hd(int i) 1464 { 1465 assert(i >= 0); 1466 if (i < num_serial_hds) { 1467 return serial_hds[i]; 1468 } 1469 return NULL; 1470 } 1471 1472 static int parallel_parse(const char *devname) 1473 { 1474 static int index = 0; 1475 char label[32]; 1476 1477 if (strcmp(devname, "none") == 0) 1478 return 0; 1479 if (index == MAX_PARALLEL_PORTS) { 1480 error_report("too many parallel ports"); 1481 exit(1); 1482 } 1483 snprintf(label, sizeof(label), "parallel%d", index); 1484 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1485 if (!parallel_hds[index]) { 1486 error_report("could not connect parallel device" 1487 " to character backend '%s'", devname); 1488 return -1; 1489 } 1490 index++; 1491 return 0; 1492 } 1493 1494 static int debugcon_parse(const char *devname) 1495 { 1496 QemuOpts *opts; 1497 1498 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { 1499 error_report("invalid character backend '%s'", devname); 1500 exit(1); 1501 } 1502 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); 1503 if (!opts) { 1504 error_report("already have a debugcon device"); 1505 exit(1); 1506 } 1507 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); 1508 qemu_opt_set(opts, "chardev", "debugcon", &error_abort); 1509 return 0; 1510 } 1511 1512 static gint machine_class_cmp(gconstpointer a, gconstpointer b) 1513 { 1514 const MachineClass *mc1 = a, *mc2 = b; 1515 int res; 1516 1517 if (mc1->family == NULL) { 1518 if (mc2->family == NULL) { 1519 /* Compare standalone machine types against each other; they sort 1520 * in increasing order. 1521 */ 1522 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), 1523 object_class_get_name(OBJECT_CLASS(mc2))); 1524 } 1525 1526 /* Standalone machine types sort after families. */ 1527 return 1; 1528 } 1529 1530 if (mc2->family == NULL) { 1531 /* Families sort before standalone machine types. */ 1532 return -1; 1533 } 1534 1535 /* Families sort between each other alphabetically increasingly. */ 1536 res = strcmp(mc1->family, mc2->family); 1537 if (res != 0) { 1538 return res; 1539 } 1540 1541 /* Within the same family, machine types sort in decreasing order. */ 1542 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), 1543 object_class_get_name(OBJECT_CLASS(mc1))); 1544 } 1545 1546 static void machine_help_func(const QDict *qdict) 1547 { 1548 g_autoptr(GSList) machines = NULL; 1549 GSList *el; 1550 const char *type = qdict_get_try_str(qdict, "type"); 1551 1552 machines = object_class_get_list(TYPE_MACHINE, false); 1553 if (type) { 1554 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); 1555 if (machine_class) { 1556 type_print_class_properties(object_class_get_name(machine_class)); 1557 return; 1558 } 1559 } 1560 1561 printf("Supported machines are:\n"); 1562 machines = g_slist_sort(machines, machine_class_cmp); 1563 for (el = machines; el; el = el->next) { 1564 MachineClass *mc = el->data; 1565 if (mc->alias) { 1566 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); 1567 } 1568 printf("%-20s %s%s%s\n", mc->name, mc->desc, 1569 mc->is_default ? " (default)" : "", 1570 mc->deprecation_reason ? " (deprecated)" : ""); 1571 } 1572 } 1573 1574 static void 1575 machine_merge_property(const char *propname, QDict *prop, Error **errp) 1576 { 1577 QDict *opts; 1578 1579 opts = qdict_new(); 1580 /* Preserve the caller's reference to prop. */ 1581 qobject_ref(prop); 1582 qdict_put(opts, propname, prop); 1583 keyval_merge(machine_opts_dict, opts, errp); 1584 qobject_unref(opts); 1585 } 1586 1587 static void 1588 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, 1589 const char *arg) 1590 { 1591 QDict *prop = NULL; 1592 bool help = false; 1593 1594 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); 1595 if (help) { 1596 qemu_opts_print_help(opts_list, true); 1597 exit(0); 1598 } 1599 machine_merge_property(propname, prop, &error_fatal); 1600 qobject_unref(prop); 1601 } 1602 1603 static const char *pid_file; 1604 struct UnlinkPidfileNotifier { 1605 Notifier notifier; 1606 char *pid_file_realpath; 1607 }; 1608 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; 1609 1610 static void qemu_unlink_pidfile(Notifier *n, void *data) 1611 { 1612 struct UnlinkPidfileNotifier *upn; 1613 1614 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); 1615 unlink(upn->pid_file_realpath); 1616 } 1617 1618 static const QEMUOption *lookup_opt(int argc, char **argv, 1619 const char **poptarg, int *poptind) 1620 { 1621 const QEMUOption *popt; 1622 int optind = *poptind; 1623 char *r = argv[optind]; 1624 const char *optarg; 1625 1626 loc_set_cmdline(argv, optind, 1); 1627 optind++; 1628 /* Treat --foo the same as -foo. */ 1629 if (r[1] == '-') 1630 r++; 1631 popt = qemu_options; 1632 for(;;) { 1633 if (!popt->name) { 1634 error_report("invalid option"); 1635 exit(1); 1636 } 1637 if (!strcmp(popt->name, r + 1)) 1638 break; 1639 popt++; 1640 } 1641 if (popt->flags & HAS_ARG) { 1642 if (optind >= argc) { 1643 error_report("requires an argument"); 1644 exit(1); 1645 } 1646 optarg = argv[optind++]; 1647 loc_set_cmdline(argv, optind - 2, 2); 1648 } else { 1649 optarg = NULL; 1650 } 1651 1652 *poptarg = optarg; 1653 *poptind = optind; 1654 1655 return popt; 1656 } 1657 1658 static MachineClass *select_machine(QDict *qdict, Error **errp) 1659 { 1660 const char *machine_type = qdict_get_try_str(qdict, "type"); 1661 GSList *machines = object_class_get_list(TYPE_MACHINE, false); 1662 MachineClass *machine_class; 1663 Error *local_err = NULL; 1664 1665 if (machine_type) { 1666 machine_class = find_machine(machine_type, machines); 1667 qdict_del(qdict, "type"); 1668 if (!machine_class) { 1669 error_setg(&local_err, "unsupported machine type"); 1670 } 1671 } else { 1672 machine_class = find_default_machine(machines); 1673 if (!machine_class) { 1674 error_setg(&local_err, "No machine specified, and there is no default"); 1675 } 1676 } 1677 1678 g_slist_free(machines); 1679 if (local_err) { 1680 error_append_hint(&local_err, "Use -machine help to list supported machines\n"); 1681 error_propagate(errp, local_err); 1682 } 1683 return machine_class; 1684 } 1685 1686 static int object_parse_property_opt(Object *obj, 1687 const char *name, const char *value, 1688 const char *skip, Error **errp) 1689 { 1690 if (g_str_equal(name, skip)) { 1691 return 0; 1692 } 1693 1694 if (!object_property_parse(obj, name, value, errp)) { 1695 return -1; 1696 } 1697 1698 return 0; 1699 } 1700 1701 /* *Non*recursively replace underscores with dashes in QDict keys. */ 1702 static void keyval_dashify(QDict *qdict, Error **errp) 1703 { 1704 const QDictEntry *ent, *next; 1705 char *p; 1706 1707 for (ent = qdict_first(qdict); ent; ent = next) { 1708 g_autofree char *new_key = NULL; 1709 1710 next = qdict_next(qdict, ent); 1711 if (!strchr(ent->key, '_')) { 1712 continue; 1713 } 1714 new_key = g_strdup(ent->key); 1715 for (p = new_key; *p; p++) { 1716 if (*p == '_') { 1717 *p = '-'; 1718 } 1719 } 1720 if (qdict_haskey(qdict, new_key)) { 1721 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); 1722 return; 1723 } 1724 qobject_ref(ent->value); 1725 qdict_put_obj(qdict, new_key, ent->value); 1726 qdict_del(qdict, ent->key); 1727 } 1728 } 1729 1730 static void qemu_apply_legacy_machine_options(QDict *qdict) 1731 { 1732 const char *value; 1733 QObject *prop; 1734 1735 keyval_dashify(qdict, &error_fatal); 1736 1737 /* Legacy options do not correspond to MachineState properties. */ 1738 value = qdict_get_try_str(qdict, "accel"); 1739 if (value) { 1740 accelerators = g_strdup(value); 1741 qdict_del(qdict, "accel"); 1742 } 1743 1744 value = qdict_get_try_str(qdict, "igd-passthru"); 1745 if (value) { 1746 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, 1747 false); 1748 qdict_del(qdict, "igd-passthru"); 1749 } 1750 1751 value = qdict_get_try_str(qdict, "kvm-shadow-mem"); 1752 if (value) { 1753 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, 1754 false); 1755 qdict_del(qdict, "kvm-shadow-mem"); 1756 } 1757 1758 value = qdict_get_try_str(qdict, "kernel-irqchip"); 1759 if (value) { 1760 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, 1761 false); 1762 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, 1763 false); 1764 qdict_del(qdict, "kernel-irqchip"); 1765 } 1766 1767 value = qdict_get_try_str(qdict, "memory-backend"); 1768 if (value) { 1769 if (mem_path) { 1770 error_report("'-mem-path' can't be used together with" 1771 "'-machine memory-backend'"); 1772 exit(EXIT_FAILURE); 1773 } 1774 1775 /* Resolved later. */ 1776 ram_memdev_id = g_strdup(value); 1777 qdict_del(qdict, "memory-backend"); 1778 } 1779 1780 prop = qdict_get(qdict, "memory"); 1781 if (prop) { 1782 have_custom_ram_size = 1783 qobject_type(prop) == QTYPE_QDICT && 1784 qdict_haskey(qobject_to(QDict, prop), "size"); 1785 } 1786 } 1787 1788 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) 1789 { 1790 ObjectOption *opt, *next; 1791 1792 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { 1793 const char *type = ObjectType_str(opt->opts->qom_type); 1794 if (type_opt_predicate(type)) { 1795 user_creatable_add_qapi(opt->opts, &error_fatal); 1796 qapi_free_ObjectOptions(opt->opts); 1797 QTAILQ_REMOVE(&object_opts, opt, next); 1798 g_free(opt); 1799 } 1800 } 1801 } 1802 1803 static void object_option_add_visitor(Visitor *v) 1804 { 1805 ObjectOption *opt = g_new0(ObjectOption, 1); 1806 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); 1807 QTAILQ_INSERT_TAIL(&object_opts, opt, next); 1808 } 1809 1810 static void object_option_parse(const char *str) 1811 { 1812 QemuOpts *opts; 1813 const char *type; 1814 Visitor *v; 1815 1816 if (str[0] == '{') { 1817 QObject *obj = qobject_from_json(str, &error_fatal); 1818 1819 v = qobject_input_visitor_new(obj); 1820 qobject_unref(obj); 1821 } else { 1822 opts = qemu_opts_parse_noisily(qemu_find_opts("object"), 1823 str, true); 1824 if (!opts) { 1825 exit(1); 1826 } 1827 1828 type = qemu_opt_get(opts, "qom-type"); 1829 if (!type) { 1830 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type"); 1831 } 1832 if (user_creatable_print_help(type, opts)) { 1833 exit(0); 1834 } 1835 1836 v = opts_visitor_new(opts); 1837 } 1838 1839 object_option_add_visitor(v); 1840 visit_free(v); 1841 } 1842 1843 /* 1844 * Very early object creation, before the sandbox options have been activated. 1845 */ 1846 static bool object_create_pre_sandbox(const char *type) 1847 { 1848 /* 1849 * Objects should in general not get initialized "too early" without 1850 * a reason. If you add one, state the reason in a comment! 1851 */ 1852 1853 /* 1854 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU 1855 * affinity of threads. 1856 */ 1857 if (g_str_equal(type, "thread-context")) { 1858 return true; 1859 } 1860 1861 return false; 1862 } 1863 1864 /* 1865 * Initial object creation happens before all other 1866 * QEMU data types are created. The majority of objects 1867 * can be created at this point. The rng-egd object 1868 * cannot be created here, as it depends on the chardev 1869 * already existing. 1870 */ 1871 static bool object_create_early(const char *type) 1872 { 1873 /* 1874 * Objects should not be made "delayed" without a reason. If you 1875 * add one, state the reason in a comment! 1876 */ 1877 1878 /* Reason: already created. */ 1879 if (object_create_pre_sandbox(type)) { 1880 return false; 1881 } 1882 1883 /* Reason: property "chardev" */ 1884 if (g_str_equal(type, "rng-egd") || 1885 g_str_equal(type, "qtest")) { 1886 return false; 1887 } 1888 1889 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) 1890 /* Reason: cryptodev-vhost-user property "chardev" */ 1891 if (g_str_equal(type, "cryptodev-vhost-user")) { 1892 return false; 1893 } 1894 #endif 1895 1896 /* Reason: vhost-user-blk-server property "node-name" */ 1897 if (g_str_equal(type, "vhost-user-blk-server")) { 1898 return false; 1899 } 1900 /* 1901 * Reason: filter-* property "netdev" etc. 1902 */ 1903 if (g_str_equal(type, "filter-buffer") || 1904 g_str_equal(type, "filter-dump") || 1905 g_str_equal(type, "filter-mirror") || 1906 g_str_equal(type, "filter-redirector") || 1907 g_str_equal(type, "colo-compare") || 1908 g_str_equal(type, "filter-rewriter") || 1909 g_str_equal(type, "filter-replay")) { 1910 return false; 1911 } 1912 1913 /* 1914 * Allocation of large amounts of memory may delay 1915 * chardev initialization for too long, and trigger timeouts 1916 * on software that waits for a monitor socket to be created 1917 * (e.g. libvirt). 1918 */ 1919 if (g_str_has_prefix(type, "memory-backend-")) { 1920 return false; 1921 } 1922 1923 return true; 1924 } 1925 1926 static void qemu_apply_machine_options(QDict *qdict) 1927 { 1928 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); 1929 1930 if (semihosting_enabled(false) && !semihosting_get_argc()) { 1931 /* fall back to the -kernel/-append */ 1932 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); 1933 } 1934 1935 if (current_machine->smp.cpus > 1) { 1936 replay_add_blocker("smp"); 1937 } 1938 } 1939 1940 static void qemu_create_early_backends(void) 1941 { 1942 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1943 #if defined(CONFIG_SDL) 1944 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); 1945 #else 1946 const bool use_sdl = false; 1947 #endif 1948 #if defined(CONFIG_GTK) 1949 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); 1950 #else 1951 const bool use_gtk = false; 1952 #endif 1953 1954 if (dpy.has_window_close && !use_gtk && !use_sdl) { 1955 error_report("window-close is only valid for GTK and SDL, " 1956 "ignoring option"); 1957 } 1958 1959 qemu_console_early_init(); 1960 1961 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) { 1962 #if defined(CONFIG_OPENGL) 1963 error_report("OpenGL is not supported by the display"); 1964 #else 1965 error_report("OpenGL support is disabled"); 1966 #endif 1967 exit(1); 1968 } 1969 1970 object_option_foreach_add(object_create_early); 1971 1972 /* spice needs the timers to be initialized by this point */ 1973 /* spice must initialize before audio as it changes the default audiodev */ 1974 /* spice must initialize before chardevs (for spicevmc and spiceport) */ 1975 qemu_spice.init(); 1976 1977 qemu_opts_foreach(qemu_find_opts("chardev"), 1978 chardev_init_func, NULL, &error_fatal); 1979 1980 #ifdef CONFIG_VIRTFS 1981 qemu_opts_foreach(qemu_find_opts("fsdev"), 1982 fsdev_init_func, NULL, &error_fatal); 1983 #endif 1984 1985 /* 1986 * Note: we need to create audio and block backends before 1987 * setting machine properties, so they can be referred to. 1988 */ 1989 configure_blockdev(&bdo_queue, machine_class, snapshot); 1990 audio_init_audiodevs(); 1991 if (default_audio) { 1992 audio_create_default_audiodevs(); 1993 } 1994 } 1995 1996 1997 /* 1998 * The remainder of object creation happens after the 1999 * creation of chardev, fsdev, net clients and device data types. 2000 */ 2001 static bool object_create_late(const char *type) 2002 { 2003 return !object_create_early(type) && !object_create_pre_sandbox(type); 2004 } 2005 2006 static void qemu_create_late_backends(void) 2007 { 2008 if (qtest_chrdev) { 2009 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); 2010 } 2011 2012 net_init_clients(); 2013 2014 object_option_foreach_add(object_create_late); 2015 2016 /* 2017 * Wait for any outstanding memory prealloc from created memory 2018 * backends to complete. 2019 */ 2020 if (!qemu_finish_async_prealloc_mem(&error_fatal)) { 2021 exit(1); 2022 } 2023 2024 if (tpm_init() < 0) { 2025 exit(1); 2026 } 2027 2028 qemu_opts_foreach(qemu_find_opts("mon"), 2029 mon_init_func, NULL, &error_fatal); 2030 2031 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) 2032 exit(1); 2033 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) 2034 exit(1); 2035 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0) 2036 exit(1); 2037 2038 /* now chardevs have been created we may have semihosting to connect */ 2039 qemu_semihosting_chardev_init(); 2040 } 2041 2042 static void qemu_resolve_machine_memdev(void) 2043 { 2044 if (ram_memdev_id) { 2045 Object *backend; 2046 ram_addr_t backend_size; 2047 2048 backend = object_resolve_path_type(ram_memdev_id, 2049 TYPE_MEMORY_BACKEND, NULL); 2050 if (!backend) { 2051 error_report("Memory backend '%s' not found", ram_memdev_id); 2052 exit(EXIT_FAILURE); 2053 } 2054 if (!have_custom_ram_size) { 2055 backend_size = object_property_get_uint(backend, "size", &error_abort); 2056 current_machine->ram_size = backend_size; 2057 } 2058 object_property_set_link(OBJECT(current_machine), 2059 "memory-backend", backend, &error_fatal); 2060 } 2061 } 2062 2063 static void parse_memory_options(void) 2064 { 2065 QemuOpts *opts = qemu_find_opts_singleton("memory"); 2066 QDict *dict, *prop; 2067 const char *mem_str; 2068 Location loc; 2069 2070 loc_push_none(&loc); 2071 qemu_opts_loc_restore(opts); 2072 2073 prop = qdict_new(); 2074 2075 if (qemu_opt_get_size(opts, "size", 0) != 0) { 2076 /* Fix up legacy suffix-less format */ 2077 mem_str = qemu_opt_get(opts, "size"); 2078 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { 2079 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); 2080 qdict_put_str(prop, "size", mib_str); 2081 } else { 2082 qdict_put_str(prop, "size", mem_str); 2083 } 2084 } 2085 2086 if (qemu_opt_get(opts, "maxmem")) { 2087 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); 2088 } 2089 if (qemu_opt_get(opts, "slots")) { 2090 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); 2091 } 2092 2093 dict = qdict_new(); 2094 qdict_put(dict, "memory", prop); 2095 keyval_merge(machine_opts_dict, dict, &error_fatal); 2096 qobject_unref(dict); 2097 loc_pop(&loc); 2098 } 2099 2100 static void qemu_create_machine(QDict *qdict) 2101 { 2102 MachineClass *machine_class = select_machine(qdict, &error_fatal); 2103 object_set_machine_compat_props(machine_class->compat_props); 2104 2105 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); 2106 object_property_add_child(object_get_root(), "machine", 2107 OBJECT(current_machine)); 2108 object_property_add_child(container_get(OBJECT(current_machine), 2109 "/unattached"), 2110 "sysbus", OBJECT(sysbus_get_default())); 2111 2112 if (machine_class->minimum_page_bits) { 2113 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { 2114 /* This would be a board error: specifying a minimum smaller than 2115 * a target's compile-time fixed setting. 2116 */ 2117 g_assert_not_reached(); 2118 } 2119 } 2120 2121 cpu_exec_init_all(); 2122 page_size_init(); 2123 2124 if (machine_class->hw_version) { 2125 qemu_set_hw_version(machine_class->hw_version); 2126 } 2127 2128 /* 2129 * Get the default machine options from the machine if it is not already 2130 * specified either by the configuration file or by the command line. 2131 */ 2132 if (machine_class->default_machine_opts) { 2133 QDict *default_opts = 2134 keyval_parse(machine_class->default_machine_opts, NULL, NULL, 2135 &error_abort); 2136 qemu_apply_legacy_machine_options(default_opts); 2137 object_set_properties_from_keyval(OBJECT(current_machine), default_opts, 2138 false, &error_abort); 2139 qobject_unref(default_opts); 2140 } 2141 } 2142 2143 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) 2144 { 2145 GlobalProperty *g; 2146 2147 g = g_malloc0(sizeof(*g)); 2148 g->driver = qemu_opt_get(opts, "driver"); 2149 g->property = qemu_opt_get(opts, "property"); 2150 g->value = qemu_opt_get(opts, "value"); 2151 qdev_prop_register_global(g); 2152 return 0; 2153 } 2154 2155 /* 2156 * Return whether configuration group @group is stored in QemuOpts, or 2157 * recorded as one or more QDicts by qemu_record_config_group. 2158 */ 2159 static bool is_qemuopts_group(const char *group) 2160 { 2161 if (g_str_equal(group, "object") || 2162 g_str_equal(group, "audiodev") || 2163 g_str_equal(group, "machine") || 2164 g_str_equal(group, "smp-opts") || 2165 g_str_equal(group, "boot-opts")) { 2166 return false; 2167 } 2168 return true; 2169 } 2170 2171 static void qemu_record_config_group(const char *group, QDict *dict, 2172 bool from_json, Error **errp) 2173 { 2174 if (g_str_equal(group, "object")) { 2175 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2176 object_option_add_visitor(v); 2177 visit_free(v); 2178 2179 } else if (g_str_equal(group, "audiodev")) { 2180 Audiodev *dev = NULL; 2181 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2182 if (visit_type_Audiodev(v, NULL, &dev, errp)) { 2183 audio_define(dev); 2184 } 2185 visit_free(v); 2186 2187 } else if (g_str_equal(group, "machine")) { 2188 /* 2189 * Cannot merge string-valued and type-safe dictionaries, so JSON 2190 * is not accepted yet for -M. 2191 */ 2192 assert(!from_json); 2193 keyval_merge(machine_opts_dict, dict, errp); 2194 } else if (g_str_equal(group, "smp-opts")) { 2195 machine_merge_property("smp", dict, &error_fatal); 2196 } else if (g_str_equal(group, "boot-opts")) { 2197 machine_merge_property("boot", dict, &error_fatal); 2198 } else { 2199 abort(); 2200 } 2201 } 2202 2203 /* 2204 * Parse non-QemuOpts config file groups, pass the rest to 2205 * qemu_config_do_parse. 2206 */ 2207 static void qemu_parse_config_group(const char *group, QDict *qdict, 2208 void *opaque, Error **errp) 2209 { 2210 QObject *crumpled; 2211 if (is_qemuopts_group(group)) { 2212 qemu_config_do_parse(group, qdict, opaque, errp); 2213 return; 2214 } 2215 2216 crumpled = qdict_crumple(qdict, errp); 2217 if (!crumpled) { 2218 return; 2219 } 2220 switch (qobject_type(crumpled)) { 2221 case QTYPE_QDICT: 2222 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); 2223 break; 2224 case QTYPE_QLIST: 2225 error_setg(errp, "Lists cannot be at top level of a configuration section"); 2226 break; 2227 default: 2228 g_assert_not_reached(); 2229 } 2230 qobject_unref(crumpled); 2231 } 2232 2233 static void qemu_read_default_config_file(Error **errp) 2234 { 2235 ERRP_GUARD(); 2236 int ret; 2237 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); 2238 2239 ret = qemu_read_config_file(file, qemu_parse_config_group, errp); 2240 if (ret < 0) { 2241 if (ret == -ENOENT) { 2242 error_free(*errp); 2243 *errp = NULL; 2244 } 2245 } 2246 } 2247 2248 static void qemu_set_option(const char *str, Error **errp) 2249 { 2250 char group[64], id[64], arg[64]; 2251 QemuOptsList *list; 2252 QemuOpts *opts; 2253 int rc, offset; 2254 2255 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); 2256 if (rc < 3 || str[offset] != '=') { 2257 error_setg(errp, "can't parse: \"%s\"", str); 2258 return; 2259 } 2260 2261 if (!is_qemuopts_group(group)) { 2262 error_setg(errp, "-set is not supported with %s", group); 2263 } else { 2264 list = qemu_find_opts_err(group, errp); 2265 if (list) { 2266 opts = qemu_opts_find(list, id); 2267 if (!opts) { 2268 error_setg(errp, "there is no %s \"%s\" defined", group, id); 2269 return; 2270 } 2271 qemu_opt_set(opts, arg, str + offset + 1, errp); 2272 } 2273 } 2274 } 2275 2276 static void user_register_global_props(void) 2277 { 2278 qemu_opts_foreach(qemu_find_opts("global"), 2279 global_init_func, NULL, NULL); 2280 } 2281 2282 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) 2283 { 2284 return !icount_configure(opts, errp); 2285 } 2286 2287 static int accelerator_set_property(void *opaque, 2288 const char *name, const char *value, 2289 Error **errp) 2290 { 2291 return object_parse_property_opt(opaque, name, value, "accel", errp); 2292 } 2293 2294 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) 2295 { 2296 bool *p_init_failed = opaque; 2297 const char *acc = qemu_opt_get(opts, "accel"); 2298 AccelClass *ac = accel_find(acc); 2299 AccelState *accel; 2300 int ret; 2301 bool qtest_with_kvm; 2302 2303 if (!acc) { 2304 error_setg(errp, QERR_MISSING_PARAMETER, "accel"); 2305 goto bad; 2306 } 2307 2308 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; 2309 2310 if (!ac) { 2311 if (!qtest_with_kvm) { 2312 error_report("invalid accelerator %s", acc); 2313 } 2314 goto bad; 2315 } 2316 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); 2317 object_apply_compat_props(OBJECT(accel)); 2318 qemu_opt_foreach(opts, accelerator_set_property, 2319 accel, 2320 &error_fatal); 2321 2322 ret = accel_init_machine(accel, current_machine); 2323 if (ret < 0) { 2324 if (!qtest_with_kvm || ret != -ENOENT) { 2325 error_report("failed to initialize %s: %s", acc, strerror(-ret)); 2326 } 2327 goto bad; 2328 } 2329 2330 return 1; 2331 2332 bad: 2333 *p_init_failed = true; 2334 return 0; 2335 } 2336 2337 static void configure_accelerators(const char *progname) 2338 { 2339 bool init_failed = false; 2340 2341 qemu_opts_foreach(qemu_find_opts("icount"), 2342 do_configure_icount, NULL, &error_fatal); 2343 2344 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { 2345 char **accel_list, **tmp; 2346 2347 if (accelerators == NULL) { 2348 /* Select the default accelerator */ 2349 bool have_tcg = accel_find("tcg"); 2350 bool have_kvm = accel_find("kvm"); 2351 2352 if (have_tcg && have_kvm) { 2353 if (g_str_has_suffix(progname, "kvm")) { 2354 /* If the program name ends with "kvm", we prefer KVM */ 2355 accelerators = "kvm:tcg"; 2356 } else { 2357 accelerators = "tcg:kvm"; 2358 } 2359 } else if (have_kvm) { 2360 accelerators = "kvm"; 2361 } else if (have_tcg) { 2362 accelerators = "tcg"; 2363 } else { 2364 error_report("No accelerator selected and" 2365 " no default accelerator available"); 2366 exit(1); 2367 } 2368 } 2369 accel_list = g_strsplit(accelerators, ":", 0); 2370 2371 for (tmp = accel_list; *tmp; tmp++) { 2372 /* 2373 * Filter invalid accelerators here, to prevent obscenities 2374 * such as "-machine accel=tcg,,thread=single". 2375 */ 2376 if (accel_find(*tmp)) { 2377 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); 2378 } else { 2379 init_failed = true; 2380 error_report("invalid accelerator %s", *tmp); 2381 } 2382 } 2383 g_strfreev(accel_list); 2384 } else { 2385 if (accelerators != NULL) { 2386 error_report("The -accel and \"-machine accel=\" options are incompatible"); 2387 exit(1); 2388 } 2389 } 2390 2391 if (!qemu_opts_foreach(qemu_find_opts("accel"), 2392 do_configure_accelerator, &init_failed, &error_fatal)) { 2393 if (!init_failed) { 2394 error_report("no accelerator found"); 2395 } 2396 exit(1); 2397 } 2398 2399 if (init_failed && !qtest_chrdev) { 2400 error_report("falling back to %s", current_accel_name()); 2401 } 2402 2403 if (icount_enabled() && !tcg_enabled()) { 2404 error_report("-icount is not allowed with hardware virtualization"); 2405 exit(1); 2406 } 2407 } 2408 2409 static void qemu_validate_options(const QDict *machine_opts) 2410 { 2411 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); 2412 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); 2413 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); 2414 2415 if (kernel_filename == NULL) { 2416 if (kernel_cmdline != NULL) { 2417 error_report("-append only allowed with -kernel option"); 2418 exit(1); 2419 } 2420 2421 if (initrd_filename != NULL) { 2422 error_report("-initrd only allowed with -kernel option"); 2423 exit(1); 2424 } 2425 } 2426 2427 if (loadvm && incoming) { 2428 error_report("'incoming' and 'loadvm' options are mutually exclusive"); 2429 exit(EXIT_FAILURE); 2430 } 2431 if (loadvm && preconfig_requested) { 2432 error_report("'preconfig' and 'loadvm' options are " 2433 "mutually exclusive"); 2434 exit(EXIT_FAILURE); 2435 } 2436 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { 2437 error_report("'preconfig' supports '-incoming defer' only"); 2438 exit(EXIT_FAILURE); 2439 } 2440 2441 #ifdef CONFIG_CURSES 2442 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { 2443 error_report("curses display cannot be used with -daemonize"); 2444 exit(1); 2445 } 2446 #endif 2447 } 2448 2449 static void qemu_process_sugar_options(void) 2450 { 2451 if (mem_prealloc) { 2452 QObject *smp = qdict_get(machine_opts_dict, "smp"); 2453 if (smp && qobject_type(smp) == QTYPE_QDICT) { 2454 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); 2455 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { 2456 const char *val = qstring_get_str(qobject_to(QString, cpus)); 2457 object_register_sugar_prop("memory-backend", "prealloc-threads", 2458 val, false); 2459 } 2460 } 2461 object_register_sugar_prop("memory-backend", "prealloc", "on", false); 2462 } 2463 } 2464 2465 /* -action processing */ 2466 2467 /* 2468 * Process all the -action parameters parsed from cmdline. 2469 */ 2470 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) 2471 { 2472 Error *local_err = NULL; 2473 QDict *qdict = qemu_opts_to_qdict(opts, NULL); 2474 QObject *ret = NULL; 2475 qmp_marshal_set_action(qdict, &ret, &local_err); 2476 qobject_unref(ret); 2477 qobject_unref(qdict); 2478 if (local_err) { 2479 error_propagate(errp, local_err); 2480 return 1; 2481 } 2482 return 0; 2483 } 2484 2485 static void qemu_process_early_options(void) 2486 { 2487 qemu_opts_foreach(qemu_find_opts("name"), 2488 parse_name, NULL, &error_fatal); 2489 2490 object_option_foreach_add(object_create_pre_sandbox); 2491 2492 #ifdef CONFIG_SECCOMP 2493 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); 2494 if (olist) { 2495 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); 2496 } 2497 #endif 2498 2499 if (qemu_opts_foreach(qemu_find_opts("action"), 2500 process_runstate_actions, NULL, &error_fatal)) { 2501 exit(1); 2502 } 2503 2504 #ifndef _WIN32 2505 qemu_opts_foreach(qemu_find_opts("add-fd"), 2506 parse_add_fd, NULL, &error_fatal); 2507 2508 qemu_opts_foreach(qemu_find_opts("add-fd"), 2509 cleanup_add_fd, NULL, &error_fatal); 2510 #endif 2511 2512 /* Open the logfile at this point and set the log mask if necessary. */ 2513 { 2514 int mask = 0; 2515 if (log_mask) { 2516 mask = qemu_str_to_log_mask(log_mask); 2517 if (!mask) { 2518 qemu_print_log_usage(stdout); 2519 exit(1); 2520 } 2521 } 2522 qemu_set_log_filename_flags(log_file, mask, &error_fatal); 2523 } 2524 2525 qemu_add_default_firmwarepath(); 2526 } 2527 2528 static void qemu_process_help_options(void) 2529 { 2530 /* 2531 * Check for -cpu help and -device help before we call select_machine(), 2532 * which will return an error if the architecture has no default machine 2533 * type and the user did not specify one, so that the user doesn't need 2534 * to say '-cpu help -machine something'. 2535 */ 2536 if (cpu_option && is_help_option(cpu_option)) { 2537 list_cpus(); 2538 exit(0); 2539 } 2540 2541 if (qemu_opts_foreach(qemu_find_opts("device"), 2542 device_help_func, NULL, NULL)) { 2543 exit(0); 2544 } 2545 2546 /* -L help lists the data directories and exits. */ 2547 if (list_data_dirs) { 2548 qemu_list_data_dirs(); 2549 exit(0); 2550 } 2551 } 2552 2553 static void qemu_maybe_daemonize(const char *pid_file) 2554 { 2555 Error *err = NULL; 2556 2557 os_daemonize(); 2558 rcu_disable_atfork(); 2559 2560 if (pid_file) { 2561 char *pid_file_realpath = NULL; 2562 2563 if (!qemu_write_pidfile(pid_file, &err)) { 2564 error_reportf_err(err, "cannot create PID file: "); 2565 exit(1); 2566 } 2567 2568 pid_file_realpath = g_malloc0(PATH_MAX); 2569 if (!realpath(pid_file, pid_file_realpath)) { 2570 if (errno != ENOENT) { 2571 warn_report("not removing PID file on exit: cannot resolve PID " 2572 "file path: %s: %s", pid_file, strerror(errno)); 2573 } 2574 return; 2575 } 2576 2577 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { 2578 .notifier = { 2579 .notify = qemu_unlink_pidfile, 2580 }, 2581 .pid_file_realpath = pid_file_realpath, 2582 }; 2583 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); 2584 } 2585 } 2586 2587 static void qemu_init_displays(void) 2588 { 2589 DisplayState *ds; 2590 2591 /* init local displays */ 2592 ds = init_displaystate(); 2593 qemu_display_init(ds, &dpy); 2594 2595 /* must be after terminal init, SDL library changes signal handlers */ 2596 os_setup_signal_handling(); 2597 2598 /* init remote displays */ 2599 #ifdef CONFIG_VNC 2600 qemu_opts_foreach(qemu_find_opts("vnc"), 2601 vnc_init_func, NULL, &error_fatal); 2602 #endif 2603 2604 if (using_spice) { 2605 qemu_spice.display_init(); 2606 } 2607 } 2608 2609 static void qemu_init_board(void) 2610 { 2611 /* process plugin before CPUs are created, but once -smp has been parsed */ 2612 qemu_plugin_load_list(&plugin_list, &error_fatal); 2613 2614 /* From here on we enter MACHINE_PHASE_INITIALIZED. */ 2615 machine_run_board_init(current_machine, mem_path, &error_fatal); 2616 2617 drive_check_orphaned(); 2618 2619 realtime_init(); 2620 } 2621 2622 static void qemu_create_cli_devices(void) 2623 { 2624 DeviceOption *opt; 2625 2626 soundhw_init(); 2627 2628 qemu_opts_foreach(qemu_find_opts("fw_cfg"), 2629 parse_fw_cfg, fw_cfg_find(), &error_fatal); 2630 2631 /* init USB devices */ 2632 if (machine_usb(current_machine)) { 2633 if (foreach_device_config(DEV_USB, usb_parse) < 0) 2634 exit(1); 2635 } 2636 2637 /* init generic devices */ 2638 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); 2639 qemu_opts_foreach(qemu_find_opts("device"), 2640 device_init_func, NULL, &error_fatal); 2641 QTAILQ_FOREACH(opt, &device_opts, next) { 2642 DeviceState *dev; 2643 loc_push_restore(&opt->loc); 2644 /* 2645 * TODO Eventually we should call qmp_device_add() here to make sure it 2646 * behaves the same, but QMP still has to accept incorrectly typed 2647 * options until libvirt is fixed and we want to be strict on the CLI 2648 * from the start, so call qdev_device_add_from_qdict() directly for 2649 * now. 2650 */ 2651 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal); 2652 object_unref(OBJECT(dev)); 2653 loc_pop(&opt->loc); 2654 } 2655 rom_reset_order_override(); 2656 } 2657 2658 static void qemu_machine_creation_done(void) 2659 { 2660 MachineState *machine = MACHINE(qdev_get_machine()); 2661 2662 /* Did we create any drives that we failed to create a device for? */ 2663 drive_check_orphaned(); 2664 2665 /* Don't warn about the default network setup that you get if 2666 * no command line -net or -netdev options are specified. There 2667 * are two cases that we would otherwise complain about: 2668 * (1) board doesn't support a NIC but the implicit "-net nic" 2669 * requested one 2670 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" 2671 * sets up a nic that isn't connected to anything. 2672 */ 2673 if (!default_net && (!qtest_enabled() || has_defaults)) { 2674 net_check_clients(); 2675 } 2676 2677 qdev_prop_check_globals(); 2678 2679 qdev_machine_creation_done(); 2680 2681 if (machine->cgs) { 2682 /* 2683 * Verify that Confidential Guest Support has actually been initialized 2684 */ 2685 assert(machine->cgs->ready); 2686 } 2687 2688 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { 2689 exit(1); 2690 } 2691 if (!vga_interface_created && !default_vga && 2692 vga_interface_type != VGA_NONE) { 2693 warn_report("A -vga option was passed but this machine " 2694 "type does not use that option; " 2695 "No VGA device has been created"); 2696 } 2697 } 2698 2699 void qmp_x_exit_preconfig(Error **errp) 2700 { 2701 if (phase_check(PHASE_MACHINE_INITIALIZED)) { 2702 error_setg(errp, "The command is permitted only before machine initialization"); 2703 return; 2704 } 2705 2706 qemu_init_board(); 2707 qemu_create_cli_devices(); 2708 qemu_machine_creation_done(); 2709 2710 if (loadvm) { 2711 RunState state = autostart ? RUN_STATE_RUNNING : runstate_get(); 2712 load_snapshot(loadvm, NULL, false, NULL, &error_fatal); 2713 load_snapshot_resume(state); 2714 } 2715 if (replay_mode != REPLAY_MODE_NONE) { 2716 replay_vmstate_init(); 2717 } 2718 2719 if (incoming) { 2720 Error *local_err = NULL; 2721 if (strcmp(incoming, "defer") != 0) { 2722 qmp_migrate_incoming(incoming, false, NULL, &local_err); 2723 if (local_err) { 2724 error_reportf_err(local_err, "-incoming %s: ", incoming); 2725 exit(1); 2726 } 2727 } 2728 } else if (autostart) { 2729 qmp_cont(NULL); 2730 } 2731 } 2732 2733 void qemu_init(int argc, char **argv) 2734 { 2735 QemuOpts *opts; 2736 QemuOpts *icount_opts = NULL, *accel_opts = NULL; 2737 QemuOptsList *olist; 2738 int optind; 2739 const char *optarg; 2740 MachineClass *machine_class; 2741 bool userconfig = true; 2742 FILE *vmstate_dump_file = NULL; 2743 2744 qemu_add_opts(&qemu_drive_opts); 2745 qemu_add_drive_opts(&qemu_legacy_drive_opts); 2746 qemu_add_drive_opts(&qemu_common_drive_opts); 2747 qemu_add_drive_opts(&qemu_drive_opts); 2748 qemu_add_drive_opts(&bdrv_runtime_opts); 2749 qemu_add_opts(&qemu_chardev_opts); 2750 qemu_add_opts(&qemu_device_opts); 2751 qemu_add_opts(&qemu_netdev_opts); 2752 qemu_add_opts(&qemu_nic_opts); 2753 qemu_add_opts(&qemu_net_opts); 2754 qemu_add_opts(&qemu_rtc_opts); 2755 qemu_add_opts(&qemu_global_opts); 2756 qemu_add_opts(&qemu_mon_opts); 2757 qemu_add_opts(&qemu_trace_opts); 2758 qemu_plugin_add_opts(); 2759 qemu_add_opts(&qemu_option_rom_opts); 2760 qemu_add_opts(&qemu_accel_opts); 2761 qemu_add_opts(&qemu_mem_opts); 2762 qemu_add_opts(&qemu_smp_opts); 2763 qemu_add_opts(&qemu_boot_opts); 2764 qemu_add_opts(&qemu_add_fd_opts); 2765 qemu_add_opts(&qemu_object_opts); 2766 qemu_add_opts(&qemu_tpmdev_opts); 2767 qemu_add_opts(&qemu_overcommit_opts); 2768 qemu_add_opts(&qemu_msg_opts); 2769 qemu_add_opts(&qemu_name_opts); 2770 qemu_add_opts(&qemu_numa_opts); 2771 qemu_add_opts(&qemu_icount_opts); 2772 qemu_add_opts(&qemu_semihosting_config_opts); 2773 qemu_add_opts(&qemu_fw_cfg_opts); 2774 qemu_add_opts(&qemu_action_opts); 2775 qemu_add_run_with_opts(); 2776 module_call_init(MODULE_INIT_OPTS); 2777 2778 error_init(argv[0]); 2779 qemu_init_exec_dir(argv[0]); 2780 2781 qemu_init_arch_modules(); 2782 2783 qemu_init_subsystems(); 2784 2785 /* first pass of option parsing */ 2786 optind = 1; 2787 while (optind < argc) { 2788 if (argv[optind][0] != '-') { 2789 /* disk image */ 2790 optind++; 2791 } else { 2792 const QEMUOption *popt; 2793 2794 popt = lookup_opt(argc, argv, &optarg, &optind); 2795 switch (popt->index) { 2796 case QEMU_OPTION_nouserconfig: 2797 userconfig = false; 2798 break; 2799 } 2800 } 2801 } 2802 2803 machine_opts_dict = qdict_new(); 2804 if (userconfig) { 2805 qemu_read_default_config_file(&error_fatal); 2806 } 2807 2808 /* second pass of option parsing */ 2809 optind = 1; 2810 for(;;) { 2811 if (optind >= argc) 2812 break; 2813 if (argv[optind][0] != '-') { 2814 loc_set_cmdline(argv, optind, 1); 2815 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); 2816 } else { 2817 const QEMUOption *popt; 2818 2819 popt = lookup_opt(argc, argv, &optarg, &optind); 2820 if (!(popt->arch_mask & arch_type)) { 2821 error_report("Option not supported for this target"); 2822 exit(1); 2823 } 2824 switch(popt->index) { 2825 case QEMU_OPTION_cpu: 2826 /* hw initialization will check this */ 2827 cpu_option = optarg; 2828 break; 2829 case QEMU_OPTION_hda: 2830 case QEMU_OPTION_hdb: 2831 case QEMU_OPTION_hdc: 2832 case QEMU_OPTION_hdd: 2833 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, 2834 HD_OPTS); 2835 break; 2836 case QEMU_OPTION_blockdev: 2837 { 2838 Visitor *v; 2839 BlockdevOptionsQueueEntry *bdo; 2840 2841 v = qobject_input_visitor_new_str(optarg, "driver", 2842 &error_fatal); 2843 2844 bdo = g_new(BlockdevOptionsQueueEntry, 1); 2845 visit_type_BlockdevOptions(v, NULL, &bdo->bdo, 2846 &error_fatal); 2847 visit_free(v); 2848 loc_save(&bdo->loc); 2849 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); 2850 break; 2851 } 2852 case QEMU_OPTION_drive: 2853 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), 2854 optarg, false); 2855 if (opts == NULL) { 2856 exit(1); 2857 } 2858 break; 2859 case QEMU_OPTION_set: 2860 qemu_set_option(optarg, &error_fatal); 2861 break; 2862 case QEMU_OPTION_global: 2863 if (qemu_global_option(optarg) != 0) 2864 exit(1); 2865 break; 2866 case QEMU_OPTION_mtdblock: 2867 drive_add(IF_MTD, -1, optarg, MTD_OPTS); 2868 break; 2869 case QEMU_OPTION_sd: 2870 drive_add(IF_SD, -1, optarg, SD_OPTS); 2871 break; 2872 case QEMU_OPTION_pflash: 2873 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); 2874 break; 2875 case QEMU_OPTION_snapshot: 2876 snapshot = 1; 2877 replay_add_blocker("-snapshot"); 2878 break; 2879 case QEMU_OPTION_numa: 2880 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), 2881 optarg, true); 2882 if (!opts) { 2883 exit(1); 2884 } 2885 break; 2886 case QEMU_OPTION_display: 2887 parse_display(optarg); 2888 break; 2889 case QEMU_OPTION_nographic: 2890 qdict_put_str(machine_opts_dict, "graphics", "off"); 2891 nographic = true; 2892 dpy.type = DISPLAY_TYPE_NONE; 2893 break; 2894 case QEMU_OPTION_portrait: 2895 graphic_rotate = 90; 2896 break; 2897 case QEMU_OPTION_rotate: 2898 graphic_rotate = strtol(optarg, (char **) &optarg, 10); 2899 if (graphic_rotate != 0 && graphic_rotate != 90 && 2900 graphic_rotate != 180 && graphic_rotate != 270) { 2901 error_report("only 90, 180, 270 deg rotation is available"); 2902 exit(1); 2903 } 2904 break; 2905 case QEMU_OPTION_kernel: 2906 qdict_put_str(machine_opts_dict, "kernel", optarg); 2907 break; 2908 case QEMU_OPTION_initrd: 2909 qdict_put_str(machine_opts_dict, "initrd", optarg); 2910 break; 2911 case QEMU_OPTION_append: 2912 qdict_put_str(machine_opts_dict, "append", optarg); 2913 break; 2914 case QEMU_OPTION_dtb: 2915 qdict_put_str(machine_opts_dict, "dtb", optarg); 2916 break; 2917 case QEMU_OPTION_cdrom: 2918 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); 2919 break; 2920 case QEMU_OPTION_boot: 2921 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); 2922 break; 2923 case QEMU_OPTION_fda: 2924 case QEMU_OPTION_fdb: 2925 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, 2926 optarg, FD_OPTS); 2927 break; 2928 case QEMU_OPTION_no_fd_bootchk: 2929 fd_bootchk = 0; 2930 break; 2931 case QEMU_OPTION_netdev: 2932 default_net = 0; 2933 if (netdev_is_modern(optarg)) { 2934 netdev_parse_modern(optarg); 2935 } else { 2936 net_client_parse(qemu_find_opts("netdev"), optarg); 2937 } 2938 break; 2939 case QEMU_OPTION_nic: 2940 default_net = 0; 2941 net_client_parse(qemu_find_opts("nic"), optarg); 2942 break; 2943 case QEMU_OPTION_net: 2944 default_net = 0; 2945 net_client_parse(qemu_find_opts("net"), optarg); 2946 break; 2947 #ifdef CONFIG_LIBISCSI 2948 case QEMU_OPTION_iscsi: 2949 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), 2950 optarg, false); 2951 if (!opts) { 2952 exit(1); 2953 } 2954 break; 2955 #endif 2956 case QEMU_OPTION_audiodev: 2957 default_audio = 0; 2958 audio_parse_option(optarg); 2959 break; 2960 case QEMU_OPTION_audio: { 2961 bool help; 2962 char *model = NULL; 2963 Audiodev *dev = NULL; 2964 Visitor *v; 2965 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); 2966 default_audio = 0; 2967 if (help || (qdict_haskey(dict, "driver") && 2968 is_help_option(qdict_get_str(dict, "driver")))) { 2969 audio_help(); 2970 exit(EXIT_SUCCESS); 2971 } 2972 if (!qdict_haskey(dict, "id")) { 2973 qdict_put_str(dict, "id", "audiodev0"); 2974 } 2975 if (qdict_haskey(dict, "model")) { 2976 model = g_strdup(qdict_get_str(dict, "model")); 2977 qdict_del(dict, "model"); 2978 if (is_help_option(model)) { 2979 show_valid_soundhw(); 2980 exit(0); 2981 } 2982 } 2983 v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2984 qobject_unref(dict); 2985 visit_type_Audiodev(v, NULL, &dev, &error_fatal); 2986 visit_free(v); 2987 if (model) { 2988 audio_define(dev); 2989 select_soundhw(model, dev->id); 2990 g_free(model); 2991 } else { 2992 audio_define_default(dev, &error_fatal); 2993 } 2994 break; 2995 } 2996 case QEMU_OPTION_h: 2997 help(0); 2998 break; 2999 case QEMU_OPTION_version: 3000 version(); 3001 exit(0); 3002 break; 3003 case QEMU_OPTION_m: 3004 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); 3005 if (opts == NULL) { 3006 exit(1); 3007 } 3008 break; 3009 #ifdef CONFIG_TPM 3010 case QEMU_OPTION_tpmdev: 3011 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { 3012 exit(1); 3013 } 3014 break; 3015 #endif 3016 case QEMU_OPTION_mempath: 3017 mem_path = optarg; 3018 break; 3019 case QEMU_OPTION_mem_prealloc: 3020 mem_prealloc = 1; 3021 break; 3022 case QEMU_OPTION_d: 3023 log_mask = optarg; 3024 break; 3025 case QEMU_OPTION_D: 3026 log_file = optarg; 3027 break; 3028 case QEMU_OPTION_DFILTER: 3029 qemu_set_dfilter_ranges(optarg, &error_fatal); 3030 break; 3031 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) 3032 case QEMU_OPTION_perfmap: 3033 perf_enable_perfmap(); 3034 break; 3035 case QEMU_OPTION_jitdump: 3036 perf_enable_jitdump(); 3037 break; 3038 #endif 3039 case QEMU_OPTION_seed: 3040 qemu_guest_random_seed_main(optarg, &error_fatal); 3041 break; 3042 case QEMU_OPTION_s: 3043 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); 3044 break; 3045 case QEMU_OPTION_gdb: 3046 add_device_config(DEV_GDB, optarg); 3047 break; 3048 case QEMU_OPTION_L: 3049 if (is_help_option(optarg)) { 3050 list_data_dirs = true; 3051 } else { 3052 qemu_add_data_dir(g_strdup(optarg)); 3053 } 3054 break; 3055 case QEMU_OPTION_bios: 3056 qdict_put_str(machine_opts_dict, "firmware", optarg); 3057 break; 3058 case QEMU_OPTION_S: 3059 autostart = 0; 3060 break; 3061 case QEMU_OPTION_k: 3062 keyboard_layout = optarg; 3063 break; 3064 case QEMU_OPTION_vga: 3065 vga_model = optarg; 3066 default_vga = 0; 3067 break; 3068 case QEMU_OPTION_g: 3069 { 3070 const char *p; 3071 int w, h, depth; 3072 p = optarg; 3073 w = strtol(p, (char **)&p, 10); 3074 if (w <= 0) { 3075 graphic_error: 3076 error_report("invalid resolution or depth"); 3077 exit(1); 3078 } 3079 if (*p != 'x') 3080 goto graphic_error; 3081 p++; 3082 h = strtol(p, (char **)&p, 10); 3083 if (h <= 0) 3084 goto graphic_error; 3085 if (*p == 'x') { 3086 p++; 3087 depth = strtol(p, (char **)&p, 10); 3088 if (depth != 1 && depth != 2 && depth != 4 && 3089 depth != 8 && depth != 15 && depth != 16 && 3090 depth != 24 && depth != 32) 3091 goto graphic_error; 3092 } else if (*p == '\0') { 3093 depth = graphic_depth; 3094 } else { 3095 goto graphic_error; 3096 } 3097 3098 graphic_width = w; 3099 graphic_height = h; 3100 graphic_depth = depth; 3101 } 3102 break; 3103 case QEMU_OPTION_echr: 3104 { 3105 char *r; 3106 term_escape_char = strtol(optarg, &r, 0); 3107 if (r == optarg) 3108 printf("Bad argument to echr\n"); 3109 break; 3110 } 3111 case QEMU_OPTION_monitor: 3112 default_monitor = 0; 3113 if (strncmp(optarg, "none", 4)) { 3114 monitor_parse(optarg, "readline", false); 3115 } 3116 break; 3117 case QEMU_OPTION_qmp: 3118 monitor_parse(optarg, "control", false); 3119 default_monitor = 0; 3120 break; 3121 case QEMU_OPTION_qmp_pretty: 3122 monitor_parse(optarg, "control", true); 3123 default_monitor = 0; 3124 break; 3125 case QEMU_OPTION_mon: 3126 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, 3127 true); 3128 if (!opts) { 3129 exit(1); 3130 } 3131 default_monitor = 0; 3132 break; 3133 case QEMU_OPTION_chardev: 3134 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), 3135 optarg, true); 3136 if (!opts) { 3137 exit(1); 3138 } 3139 break; 3140 case QEMU_OPTION_fsdev: 3141 olist = qemu_find_opts("fsdev"); 3142 if (!olist) { 3143 error_report("fsdev support is disabled"); 3144 exit(1); 3145 } 3146 opts = qemu_opts_parse_noisily(olist, optarg, true); 3147 if (!opts) { 3148 exit(1); 3149 } 3150 break; 3151 case QEMU_OPTION_virtfs: { 3152 QemuOpts *fsdev; 3153 QemuOpts *device; 3154 const char *writeout, *sock_fd, *socket, *path, *security_model, 3155 *multidevs; 3156 3157 olist = qemu_find_opts("virtfs"); 3158 if (!olist) { 3159 error_report("virtfs support is disabled"); 3160 exit(1); 3161 } 3162 opts = qemu_opts_parse_noisily(olist, optarg, true); 3163 if (!opts) { 3164 exit(1); 3165 } 3166 3167 if (qemu_opt_get(opts, "fsdriver") == NULL || 3168 qemu_opt_get(opts, "mount_tag") == NULL) { 3169 error_report("Usage: -virtfs fsdriver,mount_tag=tag"); 3170 exit(1); 3171 } 3172 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), 3173 qemu_opts_id(opts) ?: 3174 qemu_opt_get(opts, "mount_tag"), 3175 1, NULL); 3176 if (!fsdev) { 3177 error_report("duplicate or invalid fsdev id: %s", 3178 qemu_opt_get(opts, "mount_tag")); 3179 exit(1); 3180 } 3181 3182 writeout = qemu_opt_get(opts, "writeout"); 3183 if (writeout) { 3184 #ifdef CONFIG_SYNC_FILE_RANGE 3185 qemu_opt_set(fsdev, "writeout", writeout, &error_abort); 3186 #else 3187 error_report("writeout=immediate not supported " 3188 "on this platform"); 3189 exit(1); 3190 #endif 3191 } 3192 qemu_opt_set(fsdev, "fsdriver", 3193 qemu_opt_get(opts, "fsdriver"), &error_abort); 3194 path = qemu_opt_get(opts, "path"); 3195 if (path) { 3196 qemu_opt_set(fsdev, "path", path, &error_abort); 3197 } 3198 security_model = qemu_opt_get(opts, "security_model"); 3199 if (security_model) { 3200 qemu_opt_set(fsdev, "security_model", security_model, 3201 &error_abort); 3202 } 3203 socket = qemu_opt_get(opts, "socket"); 3204 if (socket) { 3205 qemu_opt_set(fsdev, "socket", socket, &error_abort); 3206 } 3207 sock_fd = qemu_opt_get(opts, "sock_fd"); 3208 if (sock_fd) { 3209 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); 3210 } 3211 3212 qemu_opt_set_bool(fsdev, "readonly", 3213 qemu_opt_get_bool(opts, "readonly", 0), 3214 &error_abort); 3215 multidevs = qemu_opt_get(opts, "multidevs"); 3216 if (multidevs) { 3217 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); 3218 } 3219 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, 3220 &error_abort); 3221 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); 3222 qemu_opt_set(device, "fsdev", 3223 qemu_opts_id(fsdev), &error_abort); 3224 qemu_opt_set(device, "mount_tag", 3225 qemu_opt_get(opts, "mount_tag"), &error_abort); 3226 break; 3227 } 3228 case QEMU_OPTION_serial: 3229 add_device_config(DEV_SERIAL, optarg); 3230 default_serial = 0; 3231 if (strncmp(optarg, "mon:", 4) == 0) { 3232 default_monitor = 0; 3233 } 3234 break; 3235 case QEMU_OPTION_action: 3236 olist = qemu_find_opts("action"); 3237 if (!qemu_opts_parse_noisily(olist, optarg, false)) { 3238 exit(1); 3239 } 3240 break; 3241 case QEMU_OPTION_watchdog_action: { 3242 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); 3243 qemu_opt_set(opts, "watchdog", optarg, &error_abort); 3244 break; 3245 } 3246 case QEMU_OPTION_parallel: 3247 add_device_config(DEV_PARALLEL, optarg); 3248 default_parallel = 0; 3249 if (strncmp(optarg, "mon:", 4) == 0) { 3250 default_monitor = 0; 3251 } 3252 break; 3253 case QEMU_OPTION_debugcon: 3254 add_device_config(DEV_DEBUGCON, optarg); 3255 break; 3256 case QEMU_OPTION_loadvm: 3257 loadvm = optarg; 3258 break; 3259 case QEMU_OPTION_full_screen: 3260 dpy.has_full_screen = true; 3261 dpy.full_screen = true; 3262 break; 3263 case QEMU_OPTION_pidfile: 3264 pid_file = optarg; 3265 break; 3266 case QEMU_OPTION_win2k_hack: 3267 win2k_install_hack = 1; 3268 break; 3269 case QEMU_OPTION_acpitable: 3270 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), 3271 optarg, true); 3272 if (!opts) { 3273 exit(1); 3274 } 3275 acpi_table_add(opts, &error_fatal); 3276 break; 3277 case QEMU_OPTION_smbios: 3278 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), 3279 optarg, false); 3280 if (!opts) { 3281 exit(1); 3282 } 3283 smbios_entry_add(opts, &error_fatal); 3284 break; 3285 case QEMU_OPTION_fwcfg: 3286 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), 3287 optarg, true); 3288 if (opts == NULL) { 3289 exit(1); 3290 } 3291 break; 3292 case QEMU_OPTION_preconfig: 3293 preconfig_requested = true; 3294 break; 3295 case QEMU_OPTION_enable_kvm: 3296 qdict_put_str(machine_opts_dict, "accel", "kvm"); 3297 break; 3298 case QEMU_OPTION_M: 3299 case QEMU_OPTION_machine: 3300 { 3301 bool help; 3302 3303 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); 3304 if (help) { 3305 machine_help_func(machine_opts_dict); 3306 exit(EXIT_SUCCESS); 3307 } 3308 break; 3309 } 3310 case QEMU_OPTION_accel: 3311 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), 3312 optarg, true); 3313 optarg = qemu_opt_get(accel_opts, "accel"); 3314 if (!optarg || is_help_option(optarg)) { 3315 printf("Accelerators supported in QEMU binary:\n"); 3316 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, 3317 false); 3318 for (el = accel_list; el; el = el->next) { 3319 gchar *typename = g_strdup(object_class_get_name( 3320 OBJECT_CLASS(el->data))); 3321 /* omit qtest which is used for tests only */ 3322 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && 3323 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { 3324 gchar **optname = g_strsplit(typename, 3325 ACCEL_CLASS_SUFFIX, 0); 3326 printf("%s\n", optname[0]); 3327 g_strfreev(optname); 3328 } 3329 g_free(typename); 3330 } 3331 g_slist_free(accel_list); 3332 exit(0); 3333 } 3334 break; 3335 case QEMU_OPTION_usb: 3336 qdict_put_str(machine_opts_dict, "usb", "on"); 3337 break; 3338 case QEMU_OPTION_usbdevice: 3339 qdict_put_str(machine_opts_dict, "usb", "on"); 3340 add_device_config(DEV_USB, optarg); 3341 break; 3342 case QEMU_OPTION_device: 3343 if (optarg[0] == '{') { 3344 QObject *obj = qobject_from_json(optarg, &error_fatal); 3345 DeviceOption *opt = g_new0(DeviceOption, 1); 3346 opt->opts = qobject_to(QDict, obj); 3347 loc_save(&opt->loc); 3348 assert(opt->opts != NULL); 3349 QTAILQ_INSERT_TAIL(&device_opts, opt, next); 3350 } else { 3351 if (!qemu_opts_parse_noisily(qemu_find_opts("device"), 3352 optarg, true)) { 3353 exit(1); 3354 } 3355 } 3356 break; 3357 case QEMU_OPTION_smp: 3358 machine_parse_property_opt(qemu_find_opts("smp-opts"), 3359 "smp", optarg); 3360 break; 3361 #ifdef CONFIG_VNC 3362 case QEMU_OPTION_vnc: 3363 vnc_parse(optarg); 3364 display_remote++; 3365 break; 3366 #endif 3367 case QEMU_OPTION_no_reboot: 3368 olist = qemu_find_opts("action"); 3369 qemu_opts_parse_noisily(olist, "reboot=shutdown", false); 3370 break; 3371 case QEMU_OPTION_no_shutdown: 3372 olist = qemu_find_opts("action"); 3373 qemu_opts_parse_noisily(olist, "shutdown=pause", false); 3374 break; 3375 case QEMU_OPTION_uuid: 3376 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { 3377 error_report("failed to parse UUID string: wrong format"); 3378 exit(1); 3379 } 3380 qemu_uuid_set = true; 3381 break; 3382 case QEMU_OPTION_option_rom: 3383 if (nb_option_roms >= MAX_OPTION_ROMS) { 3384 error_report("too many option ROMs"); 3385 exit(1); 3386 } 3387 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), 3388 optarg, true); 3389 if (!opts) { 3390 exit(1); 3391 } 3392 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); 3393 option_rom[nb_option_roms].bootindex = 3394 qemu_opt_get_number(opts, "bootindex", -1); 3395 if (!option_rom[nb_option_roms].name) { 3396 error_report("Option ROM file is not specified"); 3397 exit(1); 3398 } 3399 nb_option_roms++; 3400 break; 3401 case QEMU_OPTION_semihosting: 3402 qemu_semihosting_enable(); 3403 break; 3404 case QEMU_OPTION_semihosting_config: 3405 if (qemu_semihosting_config_options(optarg) != 0) { 3406 exit(1); 3407 } 3408 break; 3409 case QEMU_OPTION_name: 3410 opts = qemu_opts_parse_noisily(qemu_find_opts("name"), 3411 optarg, true); 3412 if (!opts) { 3413 exit(1); 3414 } 3415 /* Capture guest name if -msg guest-name is used later */ 3416 error_guest_name = qemu_opt_get(opts, "guest"); 3417 break; 3418 case QEMU_OPTION_prom_env: 3419 if (nb_prom_envs >= MAX_PROM_ENVS) { 3420 error_report("too many prom variables"); 3421 exit(1); 3422 } 3423 prom_envs[nb_prom_envs] = optarg; 3424 nb_prom_envs++; 3425 break; 3426 case QEMU_OPTION_old_param: 3427 old_param = 1; 3428 break; 3429 case QEMU_OPTION_rtc: 3430 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, 3431 false); 3432 if (!opts) { 3433 exit(1); 3434 } 3435 break; 3436 case QEMU_OPTION_icount: 3437 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), 3438 optarg, true); 3439 if (!icount_opts) { 3440 exit(1); 3441 } 3442 break; 3443 case QEMU_OPTION_incoming: 3444 if (!incoming) { 3445 runstate_set(RUN_STATE_INMIGRATE); 3446 } 3447 incoming = optarg; 3448 break; 3449 case QEMU_OPTION_only_migratable: 3450 only_migratable = 1; 3451 break; 3452 case QEMU_OPTION_nodefaults: 3453 has_defaults = 0; 3454 break; 3455 case QEMU_OPTION_xen_domid: 3456 if (!(accel_find("xen")) && !(accel_find("kvm"))) { 3457 error_report("Option not supported for this target"); 3458 exit(1); 3459 } 3460 xen_domid = atoi(optarg); 3461 break; 3462 case QEMU_OPTION_xen_attach: 3463 if (!(accel_find("xen"))) { 3464 error_report("Option not supported for this target"); 3465 exit(1); 3466 } 3467 xen_mode = XEN_ATTACH; 3468 break; 3469 case QEMU_OPTION_xen_domid_restrict: 3470 if (!(accel_find("xen"))) { 3471 error_report("Option not supported for this target"); 3472 exit(1); 3473 } 3474 xen_domid_restrict = true; 3475 break; 3476 case QEMU_OPTION_trace: 3477 trace_opt_parse(optarg); 3478 break; 3479 case QEMU_OPTION_plugin: 3480 qemu_plugin_opt_parse(optarg, &plugin_list); 3481 break; 3482 case QEMU_OPTION_readconfig: 3483 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); 3484 break; 3485 #ifdef CONFIG_SPICE 3486 case QEMU_OPTION_spice: 3487 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false); 3488 if (!opts) { 3489 exit(1); 3490 } 3491 display_remote++; 3492 break; 3493 #endif 3494 case QEMU_OPTION_qtest: 3495 qtest_chrdev = optarg; 3496 break; 3497 case QEMU_OPTION_qtest_log: 3498 qtest_log = optarg; 3499 break; 3500 case QEMU_OPTION_sandbox: 3501 olist = qemu_find_opts("sandbox"); 3502 if (!olist) { 3503 #ifndef CONFIG_SECCOMP 3504 error_report("-sandbox support is not enabled " 3505 "in this QEMU binary"); 3506 #endif 3507 exit(1); 3508 } 3509 3510 opts = qemu_opts_parse_noisily(olist, optarg, true); 3511 if (!opts) { 3512 exit(1); 3513 } 3514 break; 3515 case QEMU_OPTION_add_fd: 3516 #ifndef _WIN32 3517 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), 3518 optarg, false); 3519 if (!opts) { 3520 exit(1); 3521 } 3522 #else 3523 error_report("File descriptor passing is disabled on this " 3524 "platform"); 3525 exit(1); 3526 #endif 3527 break; 3528 case QEMU_OPTION_object: 3529 object_option_parse(optarg); 3530 break; 3531 case QEMU_OPTION_overcommit: 3532 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), 3533 optarg, false); 3534 if (!opts) { 3535 exit(1); 3536 } 3537 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false); 3538 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false); 3539 break; 3540 case QEMU_OPTION_compat: 3541 { 3542 CompatPolicy *opts_policy; 3543 Visitor *v; 3544 3545 v = qobject_input_visitor_new_str(optarg, NULL, 3546 &error_fatal); 3547 3548 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); 3549 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); 3550 3551 qapi_free_CompatPolicy(opts_policy); 3552 visit_free(v); 3553 break; 3554 } 3555 case QEMU_OPTION_msg: 3556 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, 3557 false); 3558 if (!opts) { 3559 exit(1); 3560 } 3561 configure_msg(opts); 3562 break; 3563 case QEMU_OPTION_dump_vmstate: 3564 if (vmstate_dump_file) { 3565 error_report("only one '-dump-vmstate' " 3566 "option may be given"); 3567 exit(1); 3568 } 3569 vmstate_dump_file = fopen(optarg, "w"); 3570 if (vmstate_dump_file == NULL) { 3571 error_report("open %s: %s", optarg, strerror(errno)); 3572 exit(1); 3573 } 3574 break; 3575 case QEMU_OPTION_enable_sync_profile: 3576 qsp_enable(); 3577 break; 3578 case QEMU_OPTION_nouserconfig: 3579 /* Nothing to be parsed here. Especially, do not error out below. */ 3580 break; 3581 #if defined(CONFIG_POSIX) 3582 case QEMU_OPTION_runas: 3583 if (!os_set_runas(optarg)) { 3584 error_report("User \"%s\" doesn't exist" 3585 " (and is not <uid>:<gid>)", 3586 optarg); 3587 exit(1); 3588 } 3589 break; 3590 case QEMU_OPTION_daemonize: 3591 os_set_daemonize(true); 3592 break; 3593 case QEMU_OPTION_run_with: { 3594 const char *str; 3595 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), 3596 optarg, false); 3597 if (!opts) { 3598 exit(1); 3599 } 3600 #if defined(CONFIG_LINUX) 3601 if (qemu_opt_get_bool(opts, "async-teardown", false)) { 3602 init_async_teardown(); 3603 } 3604 #endif 3605 str = qemu_opt_get(opts, "chroot"); 3606 if (str) { 3607 os_set_chroot(str); 3608 } 3609 break; 3610 } 3611 #endif /* CONFIG_POSIX */ 3612 3613 default: 3614 error_report("Option not supported in this build"); 3615 exit(1); 3616 } 3617 } 3618 } 3619 /* 3620 * Clear error location left behind by the loop. 3621 * Best done right after the loop. Do not insert code here! 3622 */ 3623 loc_set_none(); 3624 3625 qemu_validate_options(machine_opts_dict); 3626 qemu_process_sugar_options(); 3627 3628 /* 3629 * These options affect everything else and should be processed 3630 * before daemonizing. 3631 */ 3632 qemu_process_early_options(); 3633 3634 qemu_process_help_options(); 3635 qemu_maybe_daemonize(pid_file); 3636 3637 /* 3638 * The trace backend must be initialized after daemonizing. 3639 * trace_init_backends() will call st_init(), which will create the 3640 * trace thread in the parent, and also register st_flush_trace_buffer() 3641 * in atexit(). This function will force the parent to wait for the 3642 * writeout thread to finish, which will not occur, and the parent 3643 * process will be left in the host. 3644 */ 3645 if (!trace_init_backends()) { 3646 exit(1); 3647 } 3648 trace_init_file(); 3649 3650 qemu_init_main_loop(&error_fatal); 3651 cpu_timers_init(); 3652 3653 user_register_global_props(); 3654 replay_configure(icount_opts); 3655 3656 configure_rtc(qemu_find_opts_singleton("rtc")); 3657 3658 /* Transfer QemuOpts options into machine options */ 3659 parse_memory_options(); 3660 3661 qemu_create_machine(machine_opts_dict); 3662 3663 suspend_mux_open(); 3664 3665 qemu_disable_default_devices(); 3666 qemu_setup_display(); 3667 qemu_create_default_devices(); 3668 qemu_create_early_backends(); 3669 3670 qemu_apply_legacy_machine_options(machine_opts_dict); 3671 qemu_apply_machine_options(machine_opts_dict); 3672 qobject_unref(machine_opts_dict); 3673 phase_advance(PHASE_MACHINE_CREATED); 3674 3675 /* 3676 * Note: uses machine properties such as kernel-irqchip, must run 3677 * after qemu_apply_machine_options. 3678 */ 3679 configure_accelerators(argv[0]); 3680 phase_advance(PHASE_ACCEL_CREATED); 3681 3682 /* 3683 * Beware, QOM objects created before this point miss global and 3684 * compat properties. 3685 * 3686 * Global properties get set up by qdev_prop_register_global(), 3687 * called from user_register_global_props(), and certain option 3688 * desugaring. Also in CPU feature desugaring (buried in 3689 * parse_cpu_option()), which happens below this point, but may 3690 * only target the CPU type, which can only be created after 3691 * parse_cpu_option() returned the type. 3692 * 3693 * Machine compat properties: object_set_machine_compat_props(). 3694 * Accelerator compat props: object_set_accelerator_compat_props(), 3695 * called from do_configure_accelerator(). 3696 */ 3697 3698 machine_class = MACHINE_GET_CLASS(current_machine); 3699 if (!qtest_enabled() && machine_class->deprecation_reason) { 3700 warn_report("Machine type '%s' is deprecated: %s", 3701 machine_class->name, machine_class->deprecation_reason); 3702 } 3703 3704 /* 3705 * Create backends before creating migration objects, so that it can 3706 * check against compatibilities on the backend memories (e.g. postcopy 3707 * over memory-backend-file objects). 3708 */ 3709 qemu_create_late_backends(); 3710 phase_advance(PHASE_LATE_BACKENDS_CREATED); 3711 3712 /* 3713 * Note: creates a QOM object, must run only after global and 3714 * compat properties have been set up. 3715 */ 3716 migration_object_init(); 3717 3718 /* parse features once if machine provides default cpu_type */ 3719 current_machine->cpu_type = machine_class_default_cpu_type(machine_class); 3720 if (cpu_option) { 3721 current_machine->cpu_type = parse_cpu_option(cpu_option); 3722 } 3723 /* NB: for machine none cpu_type could STILL be NULL here! */ 3724 3725 qemu_resolve_machine_memdev(); 3726 parse_numa_opts(current_machine); 3727 3728 if (vmstate_dump_file) { 3729 /* dump and exit */ 3730 module_load_qom_all(); 3731 dump_vmstate_json_to_file(vmstate_dump_file); 3732 exit(0); 3733 } 3734 3735 if (!preconfig_requested) { 3736 qmp_x_exit_preconfig(&error_fatal); 3737 } 3738 qemu_init_displays(); 3739 accel_setup_post(current_machine); 3740 os_setup_post(); 3741 resume_mux_open(); 3742 } 3743