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 "accel/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 static bool opt_one_insn_per_tb; 185 186 static int has_defaults = 1; 187 static int default_audio = 1; 188 static int default_serial = 1; 189 static int default_parallel = 1; 190 static int default_monitor = 1; 191 static int default_floppy = 1; 192 static int default_cdrom = 1; 193 static int default_sdcard = 1; 194 static int default_vga = 1; 195 static int default_net = 1; 196 197 static const struct { 198 const char *driver; 199 int *flag; 200 } default_list[] = { 201 { .driver = "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 } else { 1114 error_report("VNC requires a display argument vnc=<display>"); 1115 exit(1); 1116 } 1117 return; 1118 } 1119 #endif 1120 1121 parse_display_qapi(p); 1122 } 1123 1124 static inline bool nonempty_str(const char *str) 1125 { 1126 return str && *str; 1127 } 1128 1129 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) 1130 { 1131 gchar *buf; 1132 size_t size; 1133 const char *name, *file, *str, *gen_id; 1134 FWCfgState *fw_cfg = (FWCfgState *) opaque; 1135 1136 if (fw_cfg == NULL) { 1137 error_setg(errp, "fw_cfg device not available"); 1138 return -1; 1139 } 1140 name = qemu_opt_get(opts, "name"); 1141 file = qemu_opt_get(opts, "file"); 1142 str = qemu_opt_get(opts, "string"); 1143 gen_id = qemu_opt_get(opts, "gen_id"); 1144 1145 /* we need the name, and exactly one of: file, content string, gen_id */ 1146 if (!nonempty_str(name) || 1147 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) { 1148 error_setg(errp, "name, plus exactly one of file," 1149 " string and gen_id, are needed"); 1150 return -1; 1151 } 1152 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { 1153 error_setg(errp, "name too long (max. %d char)", 1154 FW_CFG_MAX_FILE_PATH - 1); 1155 return -1; 1156 } 1157 if (nonempty_str(gen_id)) { 1158 /* 1159 * In this particular case where the content is populated 1160 * internally, the "etc/" namespace protection is relaxed, 1161 * so do not emit a warning. 1162 */ 1163 } else if (strncmp(name, "opt/", 4) != 0) { 1164 warn_report("externally provided fw_cfg item names " 1165 "should be prefixed with \"opt/\""); 1166 } 1167 if (nonempty_str(str)) { 1168 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */ 1169 buf = g_memdup(str, size); 1170 } else if (nonempty_str(gen_id)) { 1171 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) { 1172 return -1; 1173 } 1174 return 0; 1175 } else { 1176 GError *err = NULL; 1177 if (!g_file_get_contents(file, &buf, &size, &err)) { 1178 error_setg(errp, "can't load %s: %s", file, err->message); 1179 g_error_free(err); 1180 return -1; 1181 } 1182 } 1183 /* For legacy, keep user files in a specific global order. */ 1184 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); 1185 fw_cfg_add_file(fw_cfg, name, buf, size); 1186 fw_cfg_reset_order_override(fw_cfg); 1187 return 0; 1188 } 1189 1190 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) 1191 { 1192 return qdev_device_help(opts); 1193 } 1194 1195 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) 1196 { 1197 DeviceState *dev; 1198 1199 dev = qdev_device_add(opts, errp); 1200 if (!dev && *errp) { 1201 error_report_err(*errp); 1202 return -1; 1203 } else if (dev) { 1204 object_unref(OBJECT(dev)); 1205 } 1206 return 0; 1207 } 1208 1209 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1210 { 1211 Error *local_err = NULL; 1212 1213 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { 1214 if (local_err) { 1215 error_propagate(errp, local_err); 1216 return -1; 1217 } 1218 exit(0); 1219 } 1220 return 0; 1221 } 1222 1223 #ifdef CONFIG_VIRTFS 1224 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1225 { 1226 return qemu_fsdev_add(opts, errp); 1227 } 1228 #endif 1229 1230 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) 1231 { 1232 return monitor_init_opts(opts, errp); 1233 } 1234 1235 static void monitor_parse(const char *str, const char *mode, bool pretty) 1236 { 1237 static int monitor_device_index = 0; 1238 QemuOpts *opts; 1239 const char *p; 1240 char label[32]; 1241 1242 if (strstart(str, "chardev:", &p)) { 1243 snprintf(label, sizeof(label), "%s", p); 1244 } else { 1245 snprintf(label, sizeof(label), "compat_monitor%d", 1246 monitor_device_index); 1247 opts = qemu_chr_parse_compat(label, str, true); 1248 if (!opts) { 1249 error_report("parse error: %s", str); 1250 exit(1); 1251 } 1252 } 1253 1254 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); 1255 qemu_opt_set(opts, "mode", mode, &error_abort); 1256 qemu_opt_set(opts, "chardev", label, &error_abort); 1257 if (!strcmp(mode, "control")) { 1258 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); 1259 } else { 1260 assert(pretty == false); 1261 } 1262 monitor_device_index++; 1263 } 1264 1265 struct device_config { 1266 enum { 1267 DEV_USB, /* -usbdevice */ 1268 DEV_SERIAL, /* -serial */ 1269 DEV_PARALLEL, /* -parallel */ 1270 DEV_DEBUGCON, /* -debugcon */ 1271 DEV_GDB, /* -gdb, -s */ 1272 DEV_SCLP, /* s390 sclp */ 1273 } type; 1274 const char *cmdline; 1275 Location loc; 1276 QTAILQ_ENTRY(device_config) next; 1277 }; 1278 1279 static QTAILQ_HEAD(, device_config) device_configs = 1280 QTAILQ_HEAD_INITIALIZER(device_configs); 1281 1282 static void add_device_config(int type, const char *cmdline) 1283 { 1284 struct device_config *conf; 1285 1286 conf = g_malloc0(sizeof(*conf)); 1287 conf->type = type; 1288 conf->cmdline = cmdline; 1289 loc_save(&conf->loc); 1290 QTAILQ_INSERT_TAIL(&device_configs, conf, next); 1291 } 1292 1293 static int foreach_device_config(int type, int (*func)(const char *cmdline)) 1294 { 1295 struct device_config *conf; 1296 int rc; 1297 1298 QTAILQ_FOREACH(conf, &device_configs, next) { 1299 if (conf->type != type) 1300 continue; 1301 loc_push_restore(&conf->loc); 1302 rc = func(conf->cmdline); 1303 loc_pop(&conf->loc); 1304 if (rc) { 1305 return rc; 1306 } 1307 } 1308 return 0; 1309 } 1310 1311 static void qemu_disable_default_devices(void) 1312 { 1313 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1314 1315 default_driver_check_json(); 1316 qemu_opts_foreach(qemu_find_opts("device"), 1317 default_driver_check, NULL, NULL); 1318 qemu_opts_foreach(qemu_find_opts("global"), 1319 default_driver_check, NULL, NULL); 1320 1321 if (!vga_model && !default_vga) { 1322 vga_interface_type = VGA_DEVICE; 1323 vga_interface_created = true; 1324 } 1325 if (!has_defaults || machine_class->no_serial) { 1326 default_serial = 0; 1327 } 1328 if (!has_defaults || machine_class->no_parallel) { 1329 default_parallel = 0; 1330 } 1331 if (!has_defaults || machine_class->no_floppy) { 1332 default_floppy = 0; 1333 } 1334 if (!has_defaults || machine_class->no_cdrom) { 1335 default_cdrom = 0; 1336 } 1337 if (!has_defaults || machine_class->no_sdcard) { 1338 default_sdcard = 0; 1339 } 1340 if (!has_defaults) { 1341 default_audio = 0; 1342 default_monitor = 0; 1343 default_net = 0; 1344 default_vga = 0; 1345 } else { 1346 if (default_net && machine_class->default_nic && 1347 !module_object_class_by_name(machine_class->default_nic)) { 1348 warn_report("Default NIC '%s' is not available in this binary", 1349 machine_class->default_nic); 1350 default_net = 0; 1351 } 1352 } 1353 } 1354 1355 static void qemu_setup_display(void) 1356 { 1357 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { 1358 if (!qemu_display_find_default(&dpy)) { 1359 dpy.type = DISPLAY_TYPE_NONE; 1360 #if defined(CONFIG_VNC) 1361 vnc_parse("localhost:0,to=99,id=default"); 1362 #endif 1363 } 1364 } 1365 if (dpy.type == DISPLAY_TYPE_DEFAULT) { 1366 dpy.type = DISPLAY_TYPE_NONE; 1367 } 1368 1369 qemu_display_early_init(&dpy); 1370 } 1371 1372 static void qemu_create_default_devices(void) 1373 { 1374 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1375 const char *vc = qemu_display_get_vc(&dpy); 1376 1377 if (is_daemonized()) { 1378 /* According to documentation and historically, -nographic redirects 1379 * serial port, parallel port and monitor to stdio, which does not work 1380 * with -daemonize. We can redirect these to null instead, but since 1381 * -nographic is legacy, let's just error out. 1382 * We disallow -nographic only if all other ports are not redirected 1383 * explicitly, to not break existing legacy setups which uses 1384 * -nographic _and_ redirects all ports explicitly - this is valid 1385 * usage, -nographic is just a no-op in this case. 1386 */ 1387 if (nographic 1388 && (default_parallel || default_serial || default_monitor)) { 1389 error_report("-nographic cannot be used with -daemonize"); 1390 exit(1); 1391 } 1392 } 1393 1394 if (nographic || (!vc && !is_daemonized() && isatty(STDOUT_FILENO))) { 1395 if (default_parallel) { 1396 add_device_config(DEV_PARALLEL, "null"); 1397 } 1398 if (default_serial && default_monitor) { 1399 add_device_config(DEV_SERIAL, "mon:stdio"); 1400 } else { 1401 if (default_serial) { 1402 add_device_config(DEV_SERIAL, "stdio"); 1403 } 1404 if (default_monitor) { 1405 monitor_parse("stdio", "readline", false); 1406 } 1407 } 1408 } else { 1409 if (default_serial) { 1410 add_device_config(DEV_SERIAL, vc ?: "null"); 1411 } 1412 if (default_parallel) { 1413 add_device_config(DEV_PARALLEL, vc ?: "null"); 1414 } 1415 if (default_monitor && vc) { 1416 monitor_parse(vc, "readline", false); 1417 } 1418 } 1419 1420 if (default_net) { 1421 QemuOptsList *net = qemu_find_opts("net"); 1422 qemu_opts_parse(net, "nic", true, &error_abort); 1423 #ifdef CONFIG_SLIRP 1424 qemu_opts_parse(net, "user", true, &error_abort); 1425 #endif 1426 } 1427 1428 /* If no default VGA is requested, the default is "none". */ 1429 if (default_vga) { 1430 vga_model = get_default_vga_model(machine_class); 1431 } 1432 if (vga_model) { 1433 select_vgahw(machine_class, vga_model); 1434 } 1435 } 1436 1437 static int serial_parse(const char *devname) 1438 { 1439 int index = num_serial_hds; 1440 char label[32]; 1441 1442 if (strcmp(devname, "none") == 0) 1443 return 0; 1444 snprintf(label, sizeof(label), "serial%d", index); 1445 serial_hds = g_renew(Chardev *, serial_hds, index + 1); 1446 1447 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1448 if (!serial_hds[index]) { 1449 error_report("could not connect serial device" 1450 " to character backend '%s'", devname); 1451 return -1; 1452 } 1453 num_serial_hds++; 1454 return 0; 1455 } 1456 1457 Chardev *serial_hd(int i) 1458 { 1459 assert(i >= 0); 1460 if (i < num_serial_hds) { 1461 return serial_hds[i]; 1462 } 1463 return NULL; 1464 } 1465 1466 static int parallel_parse(const char *devname) 1467 { 1468 static int index = 0; 1469 char label[32]; 1470 1471 if (strcmp(devname, "none") == 0) 1472 return 0; 1473 if (index == MAX_PARALLEL_PORTS) { 1474 error_report("too many parallel ports"); 1475 exit(1); 1476 } 1477 snprintf(label, sizeof(label), "parallel%d", index); 1478 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1479 if (!parallel_hds[index]) { 1480 error_report("could not connect parallel device" 1481 " to character backend '%s'", devname); 1482 return -1; 1483 } 1484 index++; 1485 return 0; 1486 } 1487 1488 static int debugcon_parse(const char *devname) 1489 { 1490 QemuOpts *opts; 1491 1492 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { 1493 error_report("invalid character backend '%s'", devname); 1494 exit(1); 1495 } 1496 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); 1497 if (!opts) { 1498 error_report("already have a debugcon device"); 1499 exit(1); 1500 } 1501 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); 1502 qemu_opt_set(opts, "chardev", "debugcon", &error_abort); 1503 return 0; 1504 } 1505 1506 static gint machine_class_cmp(gconstpointer a, gconstpointer b) 1507 { 1508 const MachineClass *mc1 = a, *mc2 = b; 1509 int res; 1510 1511 if (mc1->family == NULL) { 1512 if (mc2->family == NULL) { 1513 /* Compare standalone machine types against each other; they sort 1514 * in increasing order. 1515 */ 1516 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), 1517 object_class_get_name(OBJECT_CLASS(mc2))); 1518 } 1519 1520 /* Standalone machine types sort after families. */ 1521 return 1; 1522 } 1523 1524 if (mc2->family == NULL) { 1525 /* Families sort before standalone machine types. */ 1526 return -1; 1527 } 1528 1529 /* Families sort between each other alphabetically increasingly. */ 1530 res = strcmp(mc1->family, mc2->family); 1531 if (res != 0) { 1532 return res; 1533 } 1534 1535 /* Within the same family, machine types sort in decreasing order. */ 1536 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), 1537 object_class_get_name(OBJECT_CLASS(mc1))); 1538 } 1539 1540 static void machine_help_func(const QDict *qdict) 1541 { 1542 g_autoptr(GSList) machines = NULL; 1543 GSList *el; 1544 const char *type = qdict_get_try_str(qdict, "type"); 1545 1546 machines = object_class_get_list(TYPE_MACHINE, false); 1547 if (type) { 1548 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); 1549 if (machine_class) { 1550 type_print_class_properties(object_class_get_name(machine_class)); 1551 return; 1552 } 1553 } 1554 1555 printf("Supported machines are:\n"); 1556 machines = g_slist_sort(machines, machine_class_cmp); 1557 for (el = machines; el; el = el->next) { 1558 MachineClass *mc = el->data; 1559 if (mc->alias) { 1560 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); 1561 } 1562 printf("%-20s %s%s%s\n", mc->name, mc->desc, 1563 mc->is_default ? " (default)" : "", 1564 mc->deprecation_reason ? " (deprecated)" : ""); 1565 } 1566 } 1567 1568 static void 1569 machine_merge_property(const char *propname, QDict *prop, Error **errp) 1570 { 1571 QDict *opts; 1572 1573 opts = qdict_new(); 1574 /* Preserve the caller's reference to prop. */ 1575 qobject_ref(prop); 1576 qdict_put(opts, propname, prop); 1577 keyval_merge(machine_opts_dict, opts, errp); 1578 qobject_unref(opts); 1579 } 1580 1581 static void 1582 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, 1583 const char *arg) 1584 { 1585 QDict *prop = NULL; 1586 bool help = false; 1587 1588 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); 1589 if (help) { 1590 qemu_opts_print_help(opts_list, true); 1591 exit(0); 1592 } 1593 machine_merge_property(propname, prop, &error_fatal); 1594 qobject_unref(prop); 1595 } 1596 1597 static const char *pid_file; 1598 struct UnlinkPidfileNotifier { 1599 Notifier notifier; 1600 char *pid_file_realpath; 1601 }; 1602 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; 1603 1604 static void qemu_unlink_pidfile(Notifier *n, void *data) 1605 { 1606 struct UnlinkPidfileNotifier *upn; 1607 1608 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); 1609 unlink(upn->pid_file_realpath); 1610 } 1611 1612 static const QEMUOption *lookup_opt(int argc, char **argv, 1613 const char **poptarg, int *poptind) 1614 { 1615 const QEMUOption *popt; 1616 int optind = *poptind; 1617 char *r = argv[optind]; 1618 const char *optarg; 1619 1620 loc_set_cmdline(argv, optind, 1); 1621 optind++; 1622 /* Treat --foo the same as -foo. */ 1623 if (r[1] == '-') 1624 r++; 1625 popt = qemu_options; 1626 for(;;) { 1627 if (!popt->name) { 1628 error_report("invalid option"); 1629 exit(1); 1630 } 1631 if (!strcmp(popt->name, r + 1)) 1632 break; 1633 popt++; 1634 } 1635 if (popt->flags & HAS_ARG) { 1636 if (optind >= argc) { 1637 error_report("requires an argument"); 1638 exit(1); 1639 } 1640 optarg = argv[optind++]; 1641 loc_set_cmdline(argv, optind - 2, 2); 1642 } else { 1643 optarg = NULL; 1644 } 1645 1646 *poptarg = optarg; 1647 *poptind = optind; 1648 1649 return popt; 1650 } 1651 1652 static MachineClass *select_machine(QDict *qdict, Error **errp) 1653 { 1654 const char *machine_type = qdict_get_try_str(qdict, "type"); 1655 GSList *machines = object_class_get_list(TYPE_MACHINE, false); 1656 MachineClass *machine_class; 1657 Error *local_err = NULL; 1658 1659 if (machine_type) { 1660 machine_class = find_machine(machine_type, machines); 1661 qdict_del(qdict, "type"); 1662 if (!machine_class) { 1663 error_setg(&local_err, "unsupported machine type"); 1664 } 1665 } else { 1666 machine_class = find_default_machine(machines); 1667 if (!machine_class) { 1668 error_setg(&local_err, "No machine specified, and there is no default"); 1669 } 1670 } 1671 1672 g_slist_free(machines); 1673 if (local_err) { 1674 error_append_hint(&local_err, "Use -machine help to list supported machines\n"); 1675 error_propagate(errp, local_err); 1676 } 1677 return machine_class; 1678 } 1679 1680 static int object_parse_property_opt(Object *obj, 1681 const char *name, const char *value, 1682 const char *skip, Error **errp) 1683 { 1684 if (g_str_equal(name, skip)) { 1685 return 0; 1686 } 1687 1688 if (!object_property_parse(obj, name, value, errp)) { 1689 return -1; 1690 } 1691 1692 return 0; 1693 } 1694 1695 /* *Non*recursively replace underscores with dashes in QDict keys. */ 1696 static void keyval_dashify(QDict *qdict, Error **errp) 1697 { 1698 const QDictEntry *ent, *next; 1699 char *p; 1700 1701 for (ent = qdict_first(qdict); ent; ent = next) { 1702 g_autofree char *new_key = NULL; 1703 1704 next = qdict_next(qdict, ent); 1705 if (!strchr(ent->key, '_')) { 1706 continue; 1707 } 1708 new_key = g_strdup(ent->key); 1709 for (p = new_key; *p; p++) { 1710 if (*p == '_') { 1711 *p = '-'; 1712 } 1713 } 1714 if (qdict_haskey(qdict, new_key)) { 1715 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); 1716 return; 1717 } 1718 qobject_ref(ent->value); 1719 qdict_put_obj(qdict, new_key, ent->value); 1720 qdict_del(qdict, ent->key); 1721 } 1722 } 1723 1724 static void qemu_apply_legacy_machine_options(QDict *qdict) 1725 { 1726 const char *value; 1727 QObject *prop; 1728 1729 keyval_dashify(qdict, &error_fatal); 1730 1731 /* Legacy options do not correspond to MachineState properties. */ 1732 value = qdict_get_try_str(qdict, "accel"); 1733 if (value) { 1734 accelerators = g_strdup(value); 1735 qdict_del(qdict, "accel"); 1736 } 1737 1738 value = qdict_get_try_str(qdict, "igd-passthru"); 1739 if (value) { 1740 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, 1741 false); 1742 qdict_del(qdict, "igd-passthru"); 1743 } 1744 1745 value = qdict_get_try_str(qdict, "kvm-shadow-mem"); 1746 if (value) { 1747 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, 1748 false); 1749 qdict_del(qdict, "kvm-shadow-mem"); 1750 } 1751 1752 value = qdict_get_try_str(qdict, "kernel-irqchip"); 1753 if (value) { 1754 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, 1755 false); 1756 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, 1757 false); 1758 qdict_del(qdict, "kernel-irqchip"); 1759 } 1760 1761 value = qdict_get_try_str(qdict, "memory-backend"); 1762 if (value) { 1763 if (mem_path) { 1764 error_report("'-mem-path' can't be used together with" 1765 "'-machine memory-backend'"); 1766 exit(EXIT_FAILURE); 1767 } 1768 1769 /* Resolved later. */ 1770 ram_memdev_id = g_strdup(value); 1771 qdict_del(qdict, "memory-backend"); 1772 } 1773 1774 prop = qdict_get(qdict, "memory"); 1775 if (prop) { 1776 have_custom_ram_size = 1777 qobject_type(prop) == QTYPE_QDICT && 1778 qdict_haskey(qobject_to(QDict, prop), "size"); 1779 } 1780 } 1781 1782 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) 1783 { 1784 ObjectOption *opt, *next; 1785 1786 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { 1787 const char *type = ObjectType_str(opt->opts->qom_type); 1788 if (type_opt_predicate(type)) { 1789 user_creatable_add_qapi(opt->opts, &error_fatal); 1790 qapi_free_ObjectOptions(opt->opts); 1791 QTAILQ_REMOVE(&object_opts, opt, next); 1792 g_free(opt); 1793 } 1794 } 1795 } 1796 1797 static void object_option_add_visitor(Visitor *v) 1798 { 1799 ObjectOption *opt = g_new0(ObjectOption, 1); 1800 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); 1801 QTAILQ_INSERT_TAIL(&object_opts, opt, next); 1802 } 1803 1804 static void object_option_parse(const char *str) 1805 { 1806 QemuOpts *opts; 1807 const char *type; 1808 Visitor *v; 1809 1810 if (str[0] == '{') { 1811 QObject *obj = qobject_from_json(str, &error_fatal); 1812 1813 v = qobject_input_visitor_new(obj); 1814 qobject_unref(obj); 1815 } else { 1816 opts = qemu_opts_parse_noisily(qemu_find_opts("object"), 1817 str, true); 1818 if (!opts) { 1819 exit(1); 1820 } 1821 1822 type = qemu_opt_get(opts, "qom-type"); 1823 if (!type) { 1824 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type"); 1825 } 1826 if (user_creatable_print_help(type, opts)) { 1827 exit(0); 1828 } 1829 1830 v = opts_visitor_new(opts); 1831 } 1832 1833 object_option_add_visitor(v); 1834 visit_free(v); 1835 } 1836 1837 /* 1838 * Very early object creation, before the sandbox options have been activated. 1839 */ 1840 static bool object_create_pre_sandbox(const char *type) 1841 { 1842 /* 1843 * Objects should in general not get initialized "too early" without 1844 * a reason. If you add one, state the reason in a comment! 1845 */ 1846 1847 /* 1848 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU 1849 * affinity of threads. 1850 */ 1851 if (g_str_equal(type, "thread-context")) { 1852 return true; 1853 } 1854 1855 return false; 1856 } 1857 1858 /* 1859 * Initial object creation happens before all other 1860 * QEMU data types are created. The majority of objects 1861 * can be created at this point. The rng-egd object 1862 * cannot be created here, as it depends on the chardev 1863 * already existing. 1864 */ 1865 static bool object_create_early(const char *type) 1866 { 1867 /* 1868 * Objects should not be made "delayed" without a reason. If you 1869 * add one, state the reason in a comment! 1870 */ 1871 1872 /* Reason: already created. */ 1873 if (object_create_pre_sandbox(type)) { 1874 return false; 1875 } 1876 1877 /* Reason: property "chardev" */ 1878 if (g_str_equal(type, "rng-egd") || 1879 g_str_equal(type, "qtest")) { 1880 return false; 1881 } 1882 1883 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) 1884 /* Reason: cryptodev-vhost-user property "chardev" */ 1885 if (g_str_equal(type, "cryptodev-vhost-user")) { 1886 return false; 1887 } 1888 #endif 1889 1890 /* Reason: vhost-user-blk-server property "node-name" */ 1891 if (g_str_equal(type, "vhost-user-blk-server")) { 1892 return false; 1893 } 1894 /* 1895 * Reason: filter-* property "netdev" etc. 1896 */ 1897 if (g_str_equal(type, "filter-buffer") || 1898 g_str_equal(type, "filter-dump") || 1899 g_str_equal(type, "filter-mirror") || 1900 g_str_equal(type, "filter-redirector") || 1901 g_str_equal(type, "colo-compare") || 1902 g_str_equal(type, "filter-rewriter") || 1903 g_str_equal(type, "filter-replay")) { 1904 return false; 1905 } 1906 1907 /* 1908 * Allocation of large amounts of memory may delay 1909 * chardev initialization for too long, and trigger timeouts 1910 * on software that waits for a monitor socket to be created 1911 * (e.g. libvirt). 1912 */ 1913 if (g_str_has_prefix(type, "memory-backend-")) { 1914 return false; 1915 } 1916 1917 return true; 1918 } 1919 1920 static void qemu_apply_machine_options(QDict *qdict) 1921 { 1922 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); 1923 1924 if (semihosting_enabled(false) && !semihosting_get_argc()) { 1925 /* fall back to the -kernel/-append */ 1926 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); 1927 } 1928 1929 if (current_machine->smp.cpus > 1) { 1930 replay_add_blocker("smp"); 1931 } 1932 } 1933 1934 static void qemu_create_early_backends(void) 1935 { 1936 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1937 #if defined(CONFIG_SDL) 1938 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); 1939 #else 1940 const bool use_sdl = false; 1941 #endif 1942 #if defined(CONFIG_GTK) 1943 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); 1944 #else 1945 const bool use_gtk = false; 1946 #endif 1947 1948 if (dpy.has_window_close && !use_gtk && !use_sdl) { 1949 error_report("window-close is only valid for GTK and SDL, " 1950 "ignoring option"); 1951 } 1952 1953 qemu_console_early_init(); 1954 1955 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) { 1956 #if defined(CONFIG_OPENGL) 1957 error_report("OpenGL is not supported by the display"); 1958 #else 1959 error_report("OpenGL support is disabled"); 1960 #endif 1961 exit(1); 1962 } 1963 1964 object_option_foreach_add(object_create_early); 1965 1966 /* spice needs the timers to be initialized by this point */ 1967 /* spice must initialize before audio as it changes the default audiodev */ 1968 /* spice must initialize before chardevs (for spicevmc and spiceport) */ 1969 qemu_spice.init(); 1970 1971 qemu_opts_foreach(qemu_find_opts("chardev"), 1972 chardev_init_func, NULL, &error_fatal); 1973 1974 #ifdef CONFIG_VIRTFS 1975 qemu_opts_foreach(qemu_find_opts("fsdev"), 1976 fsdev_init_func, NULL, &error_fatal); 1977 #endif 1978 1979 /* 1980 * Note: we need to create audio and block backends before 1981 * setting machine properties, so they can be referred to. 1982 */ 1983 configure_blockdev(&bdo_queue, machine_class, snapshot); 1984 audio_init_audiodevs(); 1985 if (default_audio) { 1986 audio_create_default_audiodevs(); 1987 } 1988 } 1989 1990 1991 /* 1992 * The remainder of object creation happens after the 1993 * creation of chardev, fsdev, net clients and device data types. 1994 */ 1995 static bool object_create_late(const char *type) 1996 { 1997 return !object_create_early(type) && !object_create_pre_sandbox(type); 1998 } 1999 2000 static void qemu_create_late_backends(void) 2001 { 2002 if (qtest_chrdev) { 2003 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); 2004 } 2005 2006 net_init_clients(); 2007 2008 object_option_foreach_add(object_create_late); 2009 2010 if (tpm_init() < 0) { 2011 exit(1); 2012 } 2013 2014 qemu_opts_foreach(qemu_find_opts("mon"), 2015 mon_init_func, NULL, &error_fatal); 2016 2017 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) 2018 exit(1); 2019 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) 2020 exit(1); 2021 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0) 2022 exit(1); 2023 2024 /* now chardevs have been created we may have semihosting to connect */ 2025 qemu_semihosting_chardev_init(); 2026 } 2027 2028 static void qemu_resolve_machine_memdev(void) 2029 { 2030 if (ram_memdev_id) { 2031 Object *backend; 2032 ram_addr_t backend_size; 2033 2034 backend = object_resolve_path_type(ram_memdev_id, 2035 TYPE_MEMORY_BACKEND, NULL); 2036 if (!backend) { 2037 error_report("Memory backend '%s' not found", ram_memdev_id); 2038 exit(EXIT_FAILURE); 2039 } 2040 if (!have_custom_ram_size) { 2041 backend_size = object_property_get_uint(backend, "size", &error_abort); 2042 current_machine->ram_size = backend_size; 2043 } 2044 object_property_set_link(OBJECT(current_machine), 2045 "memory-backend", backend, &error_fatal); 2046 } 2047 } 2048 2049 static void parse_memory_options(void) 2050 { 2051 QemuOpts *opts = qemu_find_opts_singleton("memory"); 2052 QDict *dict, *prop; 2053 const char *mem_str; 2054 Location loc; 2055 2056 loc_push_none(&loc); 2057 qemu_opts_loc_restore(opts); 2058 2059 prop = qdict_new(); 2060 2061 if (qemu_opt_get_size(opts, "size", 0) != 0) { 2062 /* Fix up legacy suffix-less format */ 2063 mem_str = qemu_opt_get(opts, "size"); 2064 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { 2065 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); 2066 qdict_put_str(prop, "size", mib_str); 2067 } else { 2068 qdict_put_str(prop, "size", mem_str); 2069 } 2070 } 2071 2072 if (qemu_opt_get(opts, "maxmem")) { 2073 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); 2074 } 2075 if (qemu_opt_get(opts, "slots")) { 2076 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); 2077 } 2078 2079 dict = qdict_new(); 2080 qdict_put(dict, "memory", prop); 2081 keyval_merge(machine_opts_dict, dict, &error_fatal); 2082 qobject_unref(dict); 2083 loc_pop(&loc); 2084 } 2085 2086 static void qemu_create_machine(QDict *qdict) 2087 { 2088 MachineClass *machine_class = select_machine(qdict, &error_fatal); 2089 object_set_machine_compat_props(machine_class->compat_props); 2090 2091 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); 2092 object_property_add_child(object_get_root(), "machine", 2093 OBJECT(current_machine)); 2094 object_property_add_child(container_get(OBJECT(current_machine), 2095 "/unattached"), 2096 "sysbus", OBJECT(sysbus_get_default())); 2097 2098 if (machine_class->minimum_page_bits) { 2099 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { 2100 /* This would be a board error: specifying a minimum smaller than 2101 * a target's compile-time fixed setting. 2102 */ 2103 g_assert_not_reached(); 2104 } 2105 } 2106 2107 cpu_exec_init_all(); 2108 page_size_init(); 2109 2110 if (machine_class->hw_version) { 2111 qemu_set_hw_version(machine_class->hw_version); 2112 } 2113 2114 /* 2115 * Get the default machine options from the machine if it is not already 2116 * specified either by the configuration file or by the command line. 2117 */ 2118 if (machine_class->default_machine_opts) { 2119 QDict *default_opts = 2120 keyval_parse(machine_class->default_machine_opts, NULL, NULL, 2121 &error_abort); 2122 qemu_apply_legacy_machine_options(default_opts); 2123 object_set_properties_from_keyval(OBJECT(current_machine), default_opts, 2124 false, &error_abort); 2125 qobject_unref(default_opts); 2126 } 2127 } 2128 2129 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) 2130 { 2131 GlobalProperty *g; 2132 2133 g = g_malloc0(sizeof(*g)); 2134 g->driver = qemu_opt_get(opts, "driver"); 2135 g->property = qemu_opt_get(opts, "property"); 2136 g->value = qemu_opt_get(opts, "value"); 2137 qdev_prop_register_global(g); 2138 return 0; 2139 } 2140 2141 /* 2142 * Return whether configuration group @group is stored in QemuOpts, or 2143 * recorded as one or more QDicts by qemu_record_config_group. 2144 */ 2145 static bool is_qemuopts_group(const char *group) 2146 { 2147 if (g_str_equal(group, "object") || 2148 g_str_equal(group, "audiodev") || 2149 g_str_equal(group, "machine") || 2150 g_str_equal(group, "smp-opts") || 2151 g_str_equal(group, "boot-opts")) { 2152 return false; 2153 } 2154 return true; 2155 } 2156 2157 static void qemu_record_config_group(const char *group, QDict *dict, 2158 bool from_json, Error **errp) 2159 { 2160 if (g_str_equal(group, "object")) { 2161 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2162 object_option_add_visitor(v); 2163 visit_free(v); 2164 2165 } else if (g_str_equal(group, "audiodev")) { 2166 Audiodev *dev = NULL; 2167 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2168 if (visit_type_Audiodev(v, NULL, &dev, errp)) { 2169 audio_define(dev); 2170 } 2171 visit_free(v); 2172 2173 } else if (g_str_equal(group, "machine")) { 2174 /* 2175 * Cannot merge string-valued and type-safe dictionaries, so JSON 2176 * is not accepted yet for -M. 2177 */ 2178 assert(!from_json); 2179 keyval_merge(machine_opts_dict, dict, errp); 2180 } else if (g_str_equal(group, "smp-opts")) { 2181 machine_merge_property("smp", dict, &error_fatal); 2182 } else if (g_str_equal(group, "boot-opts")) { 2183 machine_merge_property("boot", dict, &error_fatal); 2184 } else { 2185 abort(); 2186 } 2187 } 2188 2189 /* 2190 * Parse non-QemuOpts config file groups, pass the rest to 2191 * qemu_config_do_parse. 2192 */ 2193 static void qemu_parse_config_group(const char *group, QDict *qdict, 2194 void *opaque, Error **errp) 2195 { 2196 QObject *crumpled; 2197 if (is_qemuopts_group(group)) { 2198 qemu_config_do_parse(group, qdict, opaque, errp); 2199 return; 2200 } 2201 2202 crumpled = qdict_crumple(qdict, errp); 2203 if (!crumpled) { 2204 return; 2205 } 2206 switch (qobject_type(crumpled)) { 2207 case QTYPE_QDICT: 2208 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); 2209 break; 2210 case QTYPE_QLIST: 2211 error_setg(errp, "Lists cannot be at top level of a configuration section"); 2212 break; 2213 default: 2214 g_assert_not_reached(); 2215 } 2216 qobject_unref(crumpled); 2217 } 2218 2219 static void qemu_read_default_config_file(Error **errp) 2220 { 2221 ERRP_GUARD(); 2222 int ret; 2223 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); 2224 2225 ret = qemu_read_config_file(file, qemu_parse_config_group, errp); 2226 if (ret < 0) { 2227 if (ret == -ENOENT) { 2228 error_free(*errp); 2229 *errp = NULL; 2230 } 2231 } 2232 } 2233 2234 static void qemu_set_option(const char *str, Error **errp) 2235 { 2236 char group[64], id[64], arg[64]; 2237 QemuOptsList *list; 2238 QemuOpts *opts; 2239 int rc, offset; 2240 2241 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); 2242 if (rc < 3 || str[offset] != '=') { 2243 error_setg(errp, "can't parse: \"%s\"", str); 2244 return; 2245 } 2246 2247 if (!is_qemuopts_group(group)) { 2248 error_setg(errp, "-set is not supported with %s", group); 2249 } else { 2250 list = qemu_find_opts_err(group, errp); 2251 if (list) { 2252 opts = qemu_opts_find(list, id); 2253 if (!opts) { 2254 error_setg(errp, "there is no %s \"%s\" defined", group, id); 2255 return; 2256 } 2257 qemu_opt_set(opts, arg, str + offset + 1, errp); 2258 } 2259 } 2260 } 2261 2262 static void user_register_global_props(void) 2263 { 2264 qemu_opts_foreach(qemu_find_opts("global"), 2265 global_init_func, NULL, NULL); 2266 } 2267 2268 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) 2269 { 2270 icount_configure(opts, errp); 2271 return 0; 2272 } 2273 2274 static int accelerator_set_property(void *opaque, 2275 const char *name, const char *value, 2276 Error **errp) 2277 { 2278 return object_parse_property_opt(opaque, name, value, "accel", errp); 2279 } 2280 2281 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) 2282 { 2283 bool *p_init_failed = opaque; 2284 const char *acc = qemu_opt_get(opts, "accel"); 2285 AccelClass *ac = accel_find(acc); 2286 AccelState *accel; 2287 int ret; 2288 bool qtest_with_kvm; 2289 2290 if (!acc) { 2291 error_setg(errp, QERR_MISSING_PARAMETER, "accel"); 2292 goto bad; 2293 } 2294 2295 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; 2296 2297 if (!ac) { 2298 if (!qtest_with_kvm) { 2299 error_report("invalid accelerator %s", acc); 2300 } 2301 goto bad; 2302 } 2303 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); 2304 object_apply_compat_props(OBJECT(accel)); 2305 qemu_opt_foreach(opts, accelerator_set_property, 2306 accel, 2307 &error_fatal); 2308 /* 2309 * If legacy -singlestep option is set, honour it for TCG and 2310 * silently ignore for any other accelerator (which is how this 2311 * option has always behaved). 2312 */ 2313 if (opt_one_insn_per_tb) { 2314 /* 2315 * This will always succeed for TCG, and we want to ignore 2316 * the error from trying to set a nonexistent property 2317 * on any other accelerator. 2318 */ 2319 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL); 2320 } 2321 ret = accel_init_machine(accel, current_machine); 2322 if (ret < 0) { 2323 if (!qtest_with_kvm || ret != -ENOENT) { 2324 error_report("failed to initialize %s: %s", acc, strerror(-ret)); 2325 } 2326 goto bad; 2327 } 2328 2329 return 1; 2330 2331 bad: 2332 *p_init_failed = true; 2333 return 0; 2334 } 2335 2336 static void configure_accelerators(const char *progname) 2337 { 2338 bool init_failed = false; 2339 2340 qemu_opts_foreach(qemu_find_opts("icount"), 2341 do_configure_icount, NULL, &error_fatal); 2342 2343 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { 2344 char **accel_list, **tmp; 2345 2346 if (accelerators == NULL) { 2347 /* Select the default accelerator */ 2348 bool have_tcg = accel_find("tcg"); 2349 bool have_kvm = accel_find("kvm"); 2350 2351 if (have_tcg && have_kvm) { 2352 if (g_str_has_suffix(progname, "kvm")) { 2353 /* If the program name ends with "kvm", we prefer KVM */ 2354 accelerators = "kvm:tcg"; 2355 } else { 2356 accelerators = "tcg:kvm"; 2357 } 2358 } else if (have_kvm) { 2359 accelerators = "kvm"; 2360 } else if (have_tcg) { 2361 accelerators = "tcg"; 2362 } else { 2363 error_report("No accelerator selected and" 2364 " no default accelerator available"); 2365 exit(1); 2366 } 2367 } 2368 accel_list = g_strsplit(accelerators, ":", 0); 2369 2370 for (tmp = accel_list; *tmp; tmp++) { 2371 /* 2372 * Filter invalid accelerators here, to prevent obscenities 2373 * such as "-machine accel=tcg,,thread=single". 2374 */ 2375 if (accel_find(*tmp)) { 2376 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); 2377 } else { 2378 init_failed = true; 2379 error_report("invalid accelerator %s", *tmp); 2380 } 2381 } 2382 g_strfreev(accel_list); 2383 } else { 2384 if (accelerators != NULL) { 2385 error_report("The -accel and \"-machine accel=\" options are incompatible"); 2386 exit(1); 2387 } 2388 } 2389 2390 if (!qemu_opts_foreach(qemu_find_opts("accel"), 2391 do_configure_accelerator, &init_failed, &error_fatal)) { 2392 if (!init_failed) { 2393 error_report("no accelerator found"); 2394 } 2395 exit(1); 2396 } 2397 2398 if (init_failed && !qtest_chrdev) { 2399 error_report("falling back to %s", current_accel_name()); 2400 } 2401 2402 if (icount_enabled() && !tcg_enabled()) { 2403 error_report("-icount is not allowed with hardware virtualization"); 2404 exit(1); 2405 } 2406 } 2407 2408 static void qemu_validate_options(const QDict *machine_opts) 2409 { 2410 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); 2411 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); 2412 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); 2413 2414 if (kernel_filename == NULL) { 2415 if (kernel_cmdline != NULL) { 2416 error_report("-append only allowed with -kernel option"); 2417 exit(1); 2418 } 2419 2420 if (initrd_filename != NULL) { 2421 error_report("-initrd only allowed with -kernel option"); 2422 exit(1); 2423 } 2424 } 2425 2426 if (loadvm && preconfig_requested) { 2427 error_report("'preconfig' and 'loadvm' options are " 2428 "mutually exclusive"); 2429 exit(EXIT_FAILURE); 2430 } 2431 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { 2432 error_report("'preconfig' supports '-incoming defer' only"); 2433 exit(EXIT_FAILURE); 2434 } 2435 2436 #ifdef CONFIG_CURSES 2437 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { 2438 error_report("curses display cannot be used with -daemonize"); 2439 exit(1); 2440 } 2441 #endif 2442 } 2443 2444 static void qemu_process_sugar_options(void) 2445 { 2446 if (mem_prealloc) { 2447 QObject *smp = qdict_get(machine_opts_dict, "smp"); 2448 if (smp && qobject_type(smp) == QTYPE_QDICT) { 2449 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); 2450 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { 2451 const char *val = qstring_get_str(qobject_to(QString, cpus)); 2452 object_register_sugar_prop("memory-backend", "prealloc-threads", 2453 val, false); 2454 } 2455 } 2456 object_register_sugar_prop("memory-backend", "prealloc", "on", false); 2457 } 2458 } 2459 2460 /* -action processing */ 2461 2462 /* 2463 * Process all the -action parameters parsed from cmdline. 2464 */ 2465 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) 2466 { 2467 Error *local_err = NULL; 2468 QDict *qdict = qemu_opts_to_qdict(opts, NULL); 2469 QObject *ret = NULL; 2470 qmp_marshal_set_action(qdict, &ret, &local_err); 2471 qobject_unref(ret); 2472 qobject_unref(qdict); 2473 if (local_err) { 2474 error_propagate(errp, local_err); 2475 return 1; 2476 } 2477 return 0; 2478 } 2479 2480 static void qemu_process_early_options(void) 2481 { 2482 qemu_opts_foreach(qemu_find_opts("name"), 2483 parse_name, NULL, &error_fatal); 2484 2485 object_option_foreach_add(object_create_pre_sandbox); 2486 2487 #ifdef CONFIG_SECCOMP 2488 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); 2489 if (olist) { 2490 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); 2491 } 2492 #endif 2493 2494 if (qemu_opts_foreach(qemu_find_opts("action"), 2495 process_runstate_actions, NULL, &error_fatal)) { 2496 exit(1); 2497 } 2498 2499 #ifndef _WIN32 2500 qemu_opts_foreach(qemu_find_opts("add-fd"), 2501 parse_add_fd, NULL, &error_fatal); 2502 2503 qemu_opts_foreach(qemu_find_opts("add-fd"), 2504 cleanup_add_fd, NULL, &error_fatal); 2505 #endif 2506 2507 /* Open the logfile at this point and set the log mask if necessary. */ 2508 { 2509 int mask = 0; 2510 if (log_mask) { 2511 mask = qemu_str_to_log_mask(log_mask); 2512 if (!mask) { 2513 qemu_print_log_usage(stdout); 2514 exit(1); 2515 } 2516 } 2517 qemu_set_log_filename_flags(log_file, mask, &error_fatal); 2518 } 2519 2520 qemu_add_default_firmwarepath(); 2521 } 2522 2523 static void qemu_process_help_options(void) 2524 { 2525 /* 2526 * Check for -cpu help and -device help before we call select_machine(), 2527 * which will return an error if the architecture has no default machine 2528 * type and the user did not specify one, so that the user doesn't need 2529 * to say '-cpu help -machine something'. 2530 */ 2531 if (cpu_option && is_help_option(cpu_option)) { 2532 list_cpus(); 2533 exit(0); 2534 } 2535 2536 if (qemu_opts_foreach(qemu_find_opts("device"), 2537 device_help_func, NULL, NULL)) { 2538 exit(0); 2539 } 2540 2541 /* -L help lists the data directories and exits. */ 2542 if (list_data_dirs) { 2543 qemu_list_data_dirs(); 2544 exit(0); 2545 } 2546 } 2547 2548 static void qemu_maybe_daemonize(const char *pid_file) 2549 { 2550 Error *err = NULL; 2551 2552 os_daemonize(); 2553 rcu_disable_atfork(); 2554 2555 if (pid_file) { 2556 char *pid_file_realpath = NULL; 2557 2558 if (!qemu_write_pidfile(pid_file, &err)) { 2559 error_reportf_err(err, "cannot create PID file: "); 2560 exit(1); 2561 } 2562 2563 pid_file_realpath = g_malloc0(PATH_MAX); 2564 if (!realpath(pid_file, pid_file_realpath)) { 2565 if (errno != ENOENT) { 2566 warn_report("not removing PID file on exit: cannot resolve PID " 2567 "file path: %s: %s", pid_file, strerror(errno)); 2568 } 2569 return; 2570 } 2571 2572 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { 2573 .notifier = { 2574 .notify = qemu_unlink_pidfile, 2575 }, 2576 .pid_file_realpath = pid_file_realpath, 2577 }; 2578 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); 2579 } 2580 } 2581 2582 static void qemu_init_displays(void) 2583 { 2584 DisplayState *ds; 2585 2586 /* init local displays */ 2587 ds = init_displaystate(); 2588 qemu_display_init(ds, &dpy); 2589 2590 /* must be after terminal init, SDL library changes signal handlers */ 2591 os_setup_signal_handling(); 2592 2593 /* init remote displays */ 2594 #ifdef CONFIG_VNC 2595 qemu_opts_foreach(qemu_find_opts("vnc"), 2596 vnc_init_func, NULL, &error_fatal); 2597 #endif 2598 2599 if (using_spice) { 2600 qemu_spice.display_init(); 2601 } 2602 } 2603 2604 static void qemu_init_board(void) 2605 { 2606 /* process plugin before CPUs are created, but once -smp has been parsed */ 2607 qemu_plugin_load_list(&plugin_list, &error_fatal); 2608 2609 /* From here on we enter MACHINE_PHASE_INITIALIZED. */ 2610 machine_run_board_init(current_machine, mem_path, &error_fatal); 2611 2612 drive_check_orphaned(); 2613 2614 realtime_init(); 2615 } 2616 2617 static void qemu_create_cli_devices(void) 2618 { 2619 DeviceOption *opt; 2620 2621 soundhw_init(); 2622 2623 qemu_opts_foreach(qemu_find_opts("fw_cfg"), 2624 parse_fw_cfg, fw_cfg_find(), &error_fatal); 2625 2626 /* init USB devices */ 2627 if (machine_usb(current_machine)) { 2628 if (foreach_device_config(DEV_USB, usb_parse) < 0) 2629 exit(1); 2630 } 2631 2632 /* init generic devices */ 2633 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); 2634 qemu_opts_foreach(qemu_find_opts("device"), 2635 device_init_func, NULL, &error_fatal); 2636 QTAILQ_FOREACH(opt, &device_opts, next) { 2637 DeviceState *dev; 2638 loc_push_restore(&opt->loc); 2639 /* 2640 * TODO Eventually we should call qmp_device_add() here to make sure it 2641 * behaves the same, but QMP still has to accept incorrectly typed 2642 * options until libvirt is fixed and we want to be strict on the CLI 2643 * from the start, so call qdev_device_add_from_qdict() directly for 2644 * now. 2645 */ 2646 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal); 2647 object_unref(OBJECT(dev)); 2648 loc_pop(&opt->loc); 2649 } 2650 rom_reset_order_override(); 2651 } 2652 2653 static void qemu_machine_creation_done(void) 2654 { 2655 MachineState *machine = MACHINE(qdev_get_machine()); 2656 2657 /* Did we create any drives that we failed to create a device for? */ 2658 drive_check_orphaned(); 2659 2660 /* Don't warn about the default network setup that you get if 2661 * no command line -net or -netdev options are specified. There 2662 * are two cases that we would otherwise complain about: 2663 * (1) board doesn't support a NIC but the implicit "-net nic" 2664 * requested one 2665 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" 2666 * sets up a nic that isn't connected to anything. 2667 */ 2668 if (!default_net && (!qtest_enabled() || has_defaults)) { 2669 net_check_clients(); 2670 } 2671 2672 qdev_prop_check_globals(); 2673 2674 qdev_machine_creation_done(); 2675 2676 if (machine->cgs) { 2677 /* 2678 * Verify that Confidential Guest Support has actually been initialized 2679 */ 2680 assert(machine->cgs->ready); 2681 } 2682 2683 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { 2684 exit(1); 2685 } 2686 if (!vga_interface_created && !default_vga && 2687 vga_interface_type != VGA_NONE) { 2688 warn_report("A -vga option was passed but this machine " 2689 "type does not use that option; " 2690 "No VGA device has been created"); 2691 } 2692 } 2693 2694 void qmp_x_exit_preconfig(Error **errp) 2695 { 2696 if (phase_check(PHASE_MACHINE_INITIALIZED)) { 2697 error_setg(errp, "The command is permitted only before machine initialization"); 2698 return; 2699 } 2700 2701 qemu_init_board(); 2702 qemu_create_cli_devices(); 2703 qemu_machine_creation_done(); 2704 2705 if (loadvm) { 2706 load_snapshot(loadvm, NULL, false, NULL, &error_fatal); 2707 } 2708 if (replay_mode != REPLAY_MODE_NONE) { 2709 replay_vmstate_init(); 2710 } 2711 2712 if (incoming) { 2713 Error *local_err = NULL; 2714 if (strcmp(incoming, "defer") != 0) { 2715 qmp_migrate_incoming(incoming, false, NULL, &local_err); 2716 if (local_err) { 2717 error_reportf_err(local_err, "-incoming %s: ", incoming); 2718 exit(1); 2719 } 2720 } 2721 } else if (autostart) { 2722 qmp_cont(NULL); 2723 } 2724 } 2725 2726 void qemu_init(int argc, char **argv) 2727 { 2728 QemuOpts *opts; 2729 QemuOpts *icount_opts = NULL, *accel_opts = NULL; 2730 QemuOptsList *olist; 2731 int optind; 2732 const char *optarg; 2733 MachineClass *machine_class; 2734 bool userconfig = true; 2735 FILE *vmstate_dump_file = NULL; 2736 2737 qemu_add_opts(&qemu_drive_opts); 2738 qemu_add_drive_opts(&qemu_legacy_drive_opts); 2739 qemu_add_drive_opts(&qemu_common_drive_opts); 2740 qemu_add_drive_opts(&qemu_drive_opts); 2741 qemu_add_drive_opts(&bdrv_runtime_opts); 2742 qemu_add_opts(&qemu_chardev_opts); 2743 qemu_add_opts(&qemu_device_opts); 2744 qemu_add_opts(&qemu_netdev_opts); 2745 qemu_add_opts(&qemu_nic_opts); 2746 qemu_add_opts(&qemu_net_opts); 2747 qemu_add_opts(&qemu_rtc_opts); 2748 qemu_add_opts(&qemu_global_opts); 2749 qemu_add_opts(&qemu_mon_opts); 2750 qemu_add_opts(&qemu_trace_opts); 2751 qemu_plugin_add_opts(); 2752 qemu_add_opts(&qemu_option_rom_opts); 2753 qemu_add_opts(&qemu_accel_opts); 2754 qemu_add_opts(&qemu_mem_opts); 2755 qemu_add_opts(&qemu_smp_opts); 2756 qemu_add_opts(&qemu_boot_opts); 2757 qemu_add_opts(&qemu_add_fd_opts); 2758 qemu_add_opts(&qemu_object_opts); 2759 qemu_add_opts(&qemu_tpmdev_opts); 2760 qemu_add_opts(&qemu_overcommit_opts); 2761 qemu_add_opts(&qemu_msg_opts); 2762 qemu_add_opts(&qemu_name_opts); 2763 qemu_add_opts(&qemu_numa_opts); 2764 qemu_add_opts(&qemu_icount_opts); 2765 qemu_add_opts(&qemu_semihosting_config_opts); 2766 qemu_add_opts(&qemu_fw_cfg_opts); 2767 qemu_add_opts(&qemu_action_opts); 2768 qemu_add_run_with_opts(); 2769 module_call_init(MODULE_INIT_OPTS); 2770 2771 error_init(argv[0]); 2772 qemu_init_exec_dir(argv[0]); 2773 2774 qemu_init_arch_modules(); 2775 2776 qemu_init_subsystems(); 2777 2778 /* first pass of option parsing */ 2779 optind = 1; 2780 while (optind < argc) { 2781 if (argv[optind][0] != '-') { 2782 /* disk image */ 2783 optind++; 2784 } else { 2785 const QEMUOption *popt; 2786 2787 popt = lookup_opt(argc, argv, &optarg, &optind); 2788 switch (popt->index) { 2789 case QEMU_OPTION_nouserconfig: 2790 userconfig = false; 2791 break; 2792 } 2793 } 2794 } 2795 2796 machine_opts_dict = qdict_new(); 2797 if (userconfig) { 2798 qemu_read_default_config_file(&error_fatal); 2799 } 2800 2801 /* second pass of option parsing */ 2802 optind = 1; 2803 for(;;) { 2804 if (optind >= argc) 2805 break; 2806 if (argv[optind][0] != '-') { 2807 loc_set_cmdline(argv, optind, 1); 2808 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); 2809 } else { 2810 const QEMUOption *popt; 2811 2812 popt = lookup_opt(argc, argv, &optarg, &optind); 2813 if (!(popt->arch_mask & arch_type)) { 2814 error_report("Option not supported for this target"); 2815 exit(1); 2816 } 2817 switch(popt->index) { 2818 case QEMU_OPTION_cpu: 2819 /* hw initialization will check this */ 2820 cpu_option = optarg; 2821 break; 2822 case QEMU_OPTION_hda: 2823 case QEMU_OPTION_hdb: 2824 case QEMU_OPTION_hdc: 2825 case QEMU_OPTION_hdd: 2826 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, 2827 HD_OPTS); 2828 break; 2829 case QEMU_OPTION_blockdev: 2830 { 2831 Visitor *v; 2832 BlockdevOptionsQueueEntry *bdo; 2833 2834 v = qobject_input_visitor_new_str(optarg, "driver", 2835 &error_fatal); 2836 2837 bdo = g_new(BlockdevOptionsQueueEntry, 1); 2838 visit_type_BlockdevOptions(v, NULL, &bdo->bdo, 2839 &error_fatal); 2840 visit_free(v); 2841 loc_save(&bdo->loc); 2842 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); 2843 break; 2844 } 2845 case QEMU_OPTION_drive: 2846 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), 2847 optarg, false); 2848 if (opts == NULL) { 2849 exit(1); 2850 } 2851 break; 2852 case QEMU_OPTION_set: 2853 qemu_set_option(optarg, &error_fatal); 2854 break; 2855 case QEMU_OPTION_global: 2856 if (qemu_global_option(optarg) != 0) 2857 exit(1); 2858 break; 2859 case QEMU_OPTION_mtdblock: 2860 drive_add(IF_MTD, -1, optarg, MTD_OPTS); 2861 break; 2862 case QEMU_OPTION_sd: 2863 drive_add(IF_SD, -1, optarg, SD_OPTS); 2864 break; 2865 case QEMU_OPTION_pflash: 2866 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); 2867 break; 2868 case QEMU_OPTION_snapshot: 2869 snapshot = 1; 2870 replay_add_blocker("-snapshot"); 2871 break; 2872 case QEMU_OPTION_numa: 2873 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), 2874 optarg, true); 2875 if (!opts) { 2876 exit(1); 2877 } 2878 break; 2879 case QEMU_OPTION_display: 2880 parse_display(optarg); 2881 break; 2882 case QEMU_OPTION_nographic: 2883 qdict_put_str(machine_opts_dict, "graphics", "off"); 2884 nographic = true; 2885 dpy.type = DISPLAY_TYPE_NONE; 2886 break; 2887 case QEMU_OPTION_portrait: 2888 graphic_rotate = 90; 2889 break; 2890 case QEMU_OPTION_rotate: 2891 graphic_rotate = strtol(optarg, (char **) &optarg, 10); 2892 if (graphic_rotate != 0 && graphic_rotate != 90 && 2893 graphic_rotate != 180 && graphic_rotate != 270) { 2894 error_report("only 90, 180, 270 deg rotation is available"); 2895 exit(1); 2896 } 2897 break; 2898 case QEMU_OPTION_kernel: 2899 qdict_put_str(machine_opts_dict, "kernel", optarg); 2900 break; 2901 case QEMU_OPTION_initrd: 2902 qdict_put_str(machine_opts_dict, "initrd", optarg); 2903 break; 2904 case QEMU_OPTION_append: 2905 qdict_put_str(machine_opts_dict, "append", optarg); 2906 break; 2907 case QEMU_OPTION_dtb: 2908 qdict_put_str(machine_opts_dict, "dtb", optarg); 2909 break; 2910 case QEMU_OPTION_cdrom: 2911 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); 2912 break; 2913 case QEMU_OPTION_boot: 2914 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); 2915 break; 2916 case QEMU_OPTION_fda: 2917 case QEMU_OPTION_fdb: 2918 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, 2919 optarg, FD_OPTS); 2920 break; 2921 case QEMU_OPTION_no_fd_bootchk: 2922 fd_bootchk = 0; 2923 break; 2924 case QEMU_OPTION_netdev: 2925 default_net = 0; 2926 if (netdev_is_modern(optarg)) { 2927 netdev_parse_modern(optarg); 2928 } else { 2929 net_client_parse(qemu_find_opts("netdev"), optarg); 2930 } 2931 break; 2932 case QEMU_OPTION_nic: 2933 default_net = 0; 2934 net_client_parse(qemu_find_opts("nic"), optarg); 2935 break; 2936 case QEMU_OPTION_net: 2937 default_net = 0; 2938 net_client_parse(qemu_find_opts("net"), optarg); 2939 break; 2940 #ifdef CONFIG_LIBISCSI 2941 case QEMU_OPTION_iscsi: 2942 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), 2943 optarg, false); 2944 if (!opts) { 2945 exit(1); 2946 } 2947 break; 2948 #endif 2949 case QEMU_OPTION_audiodev: 2950 default_audio = 0; 2951 audio_parse_option(optarg); 2952 break; 2953 case QEMU_OPTION_audio: { 2954 bool help; 2955 char *model = NULL; 2956 Audiodev *dev = NULL; 2957 Visitor *v; 2958 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); 2959 default_audio = 0; 2960 if (help || (qdict_haskey(dict, "driver") && 2961 is_help_option(qdict_get_str(dict, "driver")))) { 2962 audio_help(); 2963 exit(EXIT_SUCCESS); 2964 } 2965 if (!qdict_haskey(dict, "id")) { 2966 qdict_put_str(dict, "id", "audiodev0"); 2967 } 2968 if (qdict_haskey(dict, "model")) { 2969 model = g_strdup(qdict_get_str(dict, "model")); 2970 qdict_del(dict, "model"); 2971 if (is_help_option(model)) { 2972 show_valid_soundhw(); 2973 exit(0); 2974 } 2975 } 2976 v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2977 qobject_unref(dict); 2978 visit_type_Audiodev(v, NULL, &dev, &error_fatal); 2979 visit_free(v); 2980 if (model) { 2981 audio_define(dev); 2982 select_soundhw(model, dev->id); 2983 g_free(model); 2984 } else { 2985 audio_define_default(dev, &error_fatal); 2986 } 2987 break; 2988 } 2989 case QEMU_OPTION_h: 2990 help(0); 2991 break; 2992 case QEMU_OPTION_version: 2993 version(); 2994 exit(0); 2995 break; 2996 case QEMU_OPTION_m: 2997 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); 2998 if (opts == NULL) { 2999 exit(1); 3000 } 3001 break; 3002 #ifdef CONFIG_TPM 3003 case QEMU_OPTION_tpmdev: 3004 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { 3005 exit(1); 3006 } 3007 break; 3008 #endif 3009 case QEMU_OPTION_mempath: 3010 mem_path = optarg; 3011 break; 3012 case QEMU_OPTION_mem_prealloc: 3013 mem_prealloc = 1; 3014 break; 3015 case QEMU_OPTION_d: 3016 log_mask = optarg; 3017 break; 3018 case QEMU_OPTION_D: 3019 log_file = optarg; 3020 break; 3021 case QEMU_OPTION_DFILTER: 3022 qemu_set_dfilter_ranges(optarg, &error_fatal); 3023 break; 3024 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) 3025 case QEMU_OPTION_perfmap: 3026 perf_enable_perfmap(); 3027 break; 3028 case QEMU_OPTION_jitdump: 3029 perf_enable_jitdump(); 3030 break; 3031 #endif 3032 case QEMU_OPTION_seed: 3033 qemu_guest_random_seed_main(optarg, &error_fatal); 3034 break; 3035 case QEMU_OPTION_s: 3036 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); 3037 break; 3038 case QEMU_OPTION_gdb: 3039 add_device_config(DEV_GDB, optarg); 3040 break; 3041 case QEMU_OPTION_L: 3042 if (is_help_option(optarg)) { 3043 list_data_dirs = true; 3044 } else { 3045 qemu_add_data_dir(g_strdup(optarg)); 3046 } 3047 break; 3048 case QEMU_OPTION_bios: 3049 qdict_put_str(machine_opts_dict, "firmware", optarg); 3050 break; 3051 case QEMU_OPTION_singlestep: 3052 opt_one_insn_per_tb = true; 3053 break; 3054 case QEMU_OPTION_S: 3055 autostart = 0; 3056 break; 3057 case QEMU_OPTION_k: 3058 keyboard_layout = optarg; 3059 break; 3060 case QEMU_OPTION_vga: 3061 vga_model = optarg; 3062 default_vga = 0; 3063 break; 3064 case QEMU_OPTION_g: 3065 { 3066 const char *p; 3067 int w, h, depth; 3068 p = optarg; 3069 w = strtol(p, (char **)&p, 10); 3070 if (w <= 0) { 3071 graphic_error: 3072 error_report("invalid resolution or depth"); 3073 exit(1); 3074 } 3075 if (*p != 'x') 3076 goto graphic_error; 3077 p++; 3078 h = strtol(p, (char **)&p, 10); 3079 if (h <= 0) 3080 goto graphic_error; 3081 if (*p == 'x') { 3082 p++; 3083 depth = strtol(p, (char **)&p, 10); 3084 if (depth != 1 && depth != 2 && depth != 4 && 3085 depth != 8 && depth != 15 && depth != 16 && 3086 depth != 24 && depth != 32) 3087 goto graphic_error; 3088 } else if (*p == '\0') { 3089 depth = graphic_depth; 3090 } else { 3091 goto graphic_error; 3092 } 3093 3094 graphic_width = w; 3095 graphic_height = h; 3096 graphic_depth = depth; 3097 } 3098 break; 3099 case QEMU_OPTION_echr: 3100 { 3101 char *r; 3102 term_escape_char = strtol(optarg, &r, 0); 3103 if (r == optarg) 3104 printf("Bad argument to echr\n"); 3105 break; 3106 } 3107 case QEMU_OPTION_monitor: 3108 default_monitor = 0; 3109 if (strncmp(optarg, "none", 4)) { 3110 monitor_parse(optarg, "readline", false); 3111 } 3112 break; 3113 case QEMU_OPTION_qmp: 3114 monitor_parse(optarg, "control", false); 3115 default_monitor = 0; 3116 break; 3117 case QEMU_OPTION_qmp_pretty: 3118 monitor_parse(optarg, "control", true); 3119 default_monitor = 0; 3120 break; 3121 case QEMU_OPTION_mon: 3122 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, 3123 true); 3124 if (!opts) { 3125 exit(1); 3126 } 3127 default_monitor = 0; 3128 break; 3129 case QEMU_OPTION_chardev: 3130 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), 3131 optarg, true); 3132 if (!opts) { 3133 exit(1); 3134 } 3135 break; 3136 case QEMU_OPTION_fsdev: 3137 olist = qemu_find_opts("fsdev"); 3138 if (!olist) { 3139 error_report("fsdev support is disabled"); 3140 exit(1); 3141 } 3142 opts = qemu_opts_parse_noisily(olist, optarg, true); 3143 if (!opts) { 3144 exit(1); 3145 } 3146 break; 3147 case QEMU_OPTION_virtfs: { 3148 QemuOpts *fsdev; 3149 QemuOpts *device; 3150 const char *writeout, *sock_fd, *socket, *path, *security_model, 3151 *multidevs; 3152 3153 olist = qemu_find_opts("virtfs"); 3154 if (!olist) { 3155 error_report("virtfs support is disabled"); 3156 exit(1); 3157 } 3158 opts = qemu_opts_parse_noisily(olist, optarg, true); 3159 if (!opts) { 3160 exit(1); 3161 } 3162 3163 if (qemu_opt_get(opts, "fsdriver") == NULL || 3164 qemu_opt_get(opts, "mount_tag") == NULL) { 3165 error_report("Usage: -virtfs fsdriver,mount_tag=tag"); 3166 exit(1); 3167 } 3168 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), 3169 qemu_opts_id(opts) ?: 3170 qemu_opt_get(opts, "mount_tag"), 3171 1, NULL); 3172 if (!fsdev) { 3173 error_report("duplicate or invalid fsdev id: %s", 3174 qemu_opt_get(opts, "mount_tag")); 3175 exit(1); 3176 } 3177 3178 writeout = qemu_opt_get(opts, "writeout"); 3179 if (writeout) { 3180 #ifdef CONFIG_SYNC_FILE_RANGE 3181 qemu_opt_set(fsdev, "writeout", writeout, &error_abort); 3182 #else 3183 error_report("writeout=immediate not supported " 3184 "on this platform"); 3185 exit(1); 3186 #endif 3187 } 3188 qemu_opt_set(fsdev, "fsdriver", 3189 qemu_opt_get(opts, "fsdriver"), &error_abort); 3190 path = qemu_opt_get(opts, "path"); 3191 if (path) { 3192 qemu_opt_set(fsdev, "path", path, &error_abort); 3193 } 3194 security_model = qemu_opt_get(opts, "security_model"); 3195 if (security_model) { 3196 qemu_opt_set(fsdev, "security_model", security_model, 3197 &error_abort); 3198 } 3199 socket = qemu_opt_get(opts, "socket"); 3200 if (socket) { 3201 qemu_opt_set(fsdev, "socket", socket, &error_abort); 3202 } 3203 sock_fd = qemu_opt_get(opts, "sock_fd"); 3204 if (sock_fd) { 3205 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); 3206 } 3207 3208 qemu_opt_set_bool(fsdev, "readonly", 3209 qemu_opt_get_bool(opts, "readonly", 0), 3210 &error_abort); 3211 multidevs = qemu_opt_get(opts, "multidevs"); 3212 if (multidevs) { 3213 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); 3214 } 3215 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, 3216 &error_abort); 3217 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); 3218 qemu_opt_set(device, "fsdev", 3219 qemu_opts_id(fsdev), &error_abort); 3220 qemu_opt_set(device, "mount_tag", 3221 qemu_opt_get(opts, "mount_tag"), &error_abort); 3222 break; 3223 } 3224 case QEMU_OPTION_serial: 3225 add_device_config(DEV_SERIAL, optarg); 3226 default_serial = 0; 3227 if (strncmp(optarg, "mon:", 4) == 0) { 3228 default_monitor = 0; 3229 } 3230 break; 3231 case QEMU_OPTION_action: 3232 olist = qemu_find_opts("action"); 3233 if (!qemu_opts_parse_noisily(olist, optarg, false)) { 3234 exit(1); 3235 } 3236 break; 3237 case QEMU_OPTION_watchdog_action: { 3238 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); 3239 qemu_opt_set(opts, "watchdog", optarg, &error_abort); 3240 break; 3241 } 3242 case QEMU_OPTION_parallel: 3243 add_device_config(DEV_PARALLEL, optarg); 3244 default_parallel = 0; 3245 if (strncmp(optarg, "mon:", 4) == 0) { 3246 default_monitor = 0; 3247 } 3248 break; 3249 case QEMU_OPTION_debugcon: 3250 add_device_config(DEV_DEBUGCON, optarg); 3251 break; 3252 case QEMU_OPTION_loadvm: 3253 loadvm = optarg; 3254 break; 3255 case QEMU_OPTION_full_screen: 3256 dpy.has_full_screen = true; 3257 dpy.full_screen = true; 3258 break; 3259 case QEMU_OPTION_pidfile: 3260 pid_file = optarg; 3261 break; 3262 case QEMU_OPTION_win2k_hack: 3263 win2k_install_hack = 1; 3264 break; 3265 case QEMU_OPTION_acpitable: 3266 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), 3267 optarg, true); 3268 if (!opts) { 3269 exit(1); 3270 } 3271 acpi_table_add(opts, &error_fatal); 3272 break; 3273 case QEMU_OPTION_smbios: 3274 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), 3275 optarg, false); 3276 if (!opts) { 3277 exit(1); 3278 } 3279 smbios_entry_add(opts, &error_fatal); 3280 break; 3281 case QEMU_OPTION_fwcfg: 3282 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), 3283 optarg, true); 3284 if (opts == NULL) { 3285 exit(1); 3286 } 3287 break; 3288 case QEMU_OPTION_preconfig: 3289 preconfig_requested = true; 3290 break; 3291 case QEMU_OPTION_enable_kvm: 3292 qdict_put_str(machine_opts_dict, "accel", "kvm"); 3293 break; 3294 case QEMU_OPTION_M: 3295 case QEMU_OPTION_machine: 3296 { 3297 bool help; 3298 3299 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); 3300 if (help) { 3301 machine_help_func(machine_opts_dict); 3302 exit(EXIT_SUCCESS); 3303 } 3304 break; 3305 } 3306 case QEMU_OPTION_accel: 3307 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), 3308 optarg, true); 3309 optarg = qemu_opt_get(accel_opts, "accel"); 3310 if (!optarg || is_help_option(optarg)) { 3311 printf("Accelerators supported in QEMU binary:\n"); 3312 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, 3313 false); 3314 for (el = accel_list; el; el = el->next) { 3315 gchar *typename = g_strdup(object_class_get_name( 3316 OBJECT_CLASS(el->data))); 3317 /* omit qtest which is used for tests only */ 3318 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && 3319 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { 3320 gchar **optname = g_strsplit(typename, 3321 ACCEL_CLASS_SUFFIX, 0); 3322 printf("%s\n", optname[0]); 3323 g_strfreev(optname); 3324 } 3325 g_free(typename); 3326 } 3327 g_slist_free(accel_list); 3328 exit(0); 3329 } 3330 break; 3331 case QEMU_OPTION_usb: 3332 qdict_put_str(machine_opts_dict, "usb", "on"); 3333 break; 3334 case QEMU_OPTION_usbdevice: 3335 qdict_put_str(machine_opts_dict, "usb", "on"); 3336 add_device_config(DEV_USB, optarg); 3337 break; 3338 case QEMU_OPTION_device: 3339 if (optarg[0] == '{') { 3340 QObject *obj = qobject_from_json(optarg, &error_fatal); 3341 DeviceOption *opt = g_new0(DeviceOption, 1); 3342 opt->opts = qobject_to(QDict, obj); 3343 loc_save(&opt->loc); 3344 assert(opt->opts != NULL); 3345 QTAILQ_INSERT_TAIL(&device_opts, opt, next); 3346 } else { 3347 if (!qemu_opts_parse_noisily(qemu_find_opts("device"), 3348 optarg, true)) { 3349 exit(1); 3350 } 3351 } 3352 break; 3353 case QEMU_OPTION_smp: 3354 machine_parse_property_opt(qemu_find_opts("smp-opts"), 3355 "smp", optarg); 3356 break; 3357 #ifdef CONFIG_VNC 3358 case QEMU_OPTION_vnc: 3359 vnc_parse(optarg); 3360 display_remote++; 3361 break; 3362 #endif 3363 case QEMU_OPTION_no_acpi: 3364 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead"); 3365 qdict_put_str(machine_opts_dict, "acpi", "off"); 3366 break; 3367 case QEMU_OPTION_no_hpet: 3368 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead"); 3369 qdict_put_str(machine_opts_dict, "hpet", "off"); 3370 break; 3371 case QEMU_OPTION_no_reboot: 3372 olist = qemu_find_opts("action"); 3373 qemu_opts_parse_noisily(olist, "reboot=shutdown", false); 3374 break; 3375 case QEMU_OPTION_no_shutdown: 3376 olist = qemu_find_opts("action"); 3377 qemu_opts_parse_noisily(olist, "shutdown=pause", false); 3378 break; 3379 case QEMU_OPTION_uuid: 3380 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { 3381 error_report("failed to parse UUID string: wrong format"); 3382 exit(1); 3383 } 3384 qemu_uuid_set = true; 3385 break; 3386 case QEMU_OPTION_option_rom: 3387 if (nb_option_roms >= MAX_OPTION_ROMS) { 3388 error_report("too many option ROMs"); 3389 exit(1); 3390 } 3391 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), 3392 optarg, true); 3393 if (!opts) { 3394 exit(1); 3395 } 3396 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); 3397 option_rom[nb_option_roms].bootindex = 3398 qemu_opt_get_number(opts, "bootindex", -1); 3399 if (!option_rom[nb_option_roms].name) { 3400 error_report("Option ROM file is not specified"); 3401 exit(1); 3402 } 3403 nb_option_roms++; 3404 break; 3405 case QEMU_OPTION_semihosting: 3406 qemu_semihosting_enable(); 3407 break; 3408 case QEMU_OPTION_semihosting_config: 3409 if (qemu_semihosting_config_options(optarg) != 0) { 3410 exit(1); 3411 } 3412 break; 3413 case QEMU_OPTION_name: 3414 opts = qemu_opts_parse_noisily(qemu_find_opts("name"), 3415 optarg, true); 3416 if (!opts) { 3417 exit(1); 3418 } 3419 /* Capture guest name if -msg guest-name is used later */ 3420 error_guest_name = qemu_opt_get(opts, "guest"); 3421 break; 3422 case QEMU_OPTION_prom_env: 3423 if (nb_prom_envs >= MAX_PROM_ENVS) { 3424 error_report("too many prom variables"); 3425 exit(1); 3426 } 3427 prom_envs[nb_prom_envs] = optarg; 3428 nb_prom_envs++; 3429 break; 3430 case QEMU_OPTION_old_param: 3431 old_param = 1; 3432 break; 3433 case QEMU_OPTION_rtc: 3434 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, 3435 false); 3436 if (!opts) { 3437 exit(1); 3438 } 3439 break; 3440 case QEMU_OPTION_icount: 3441 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), 3442 optarg, true); 3443 if (!icount_opts) { 3444 exit(1); 3445 } 3446 break; 3447 case QEMU_OPTION_incoming: 3448 if (!incoming) { 3449 runstate_set(RUN_STATE_INMIGRATE); 3450 } 3451 incoming = optarg; 3452 break; 3453 case QEMU_OPTION_only_migratable: 3454 only_migratable = 1; 3455 break; 3456 case QEMU_OPTION_nodefaults: 3457 has_defaults = 0; 3458 break; 3459 case QEMU_OPTION_xen_domid: 3460 if (!(accel_find("xen")) && !(accel_find("kvm"))) { 3461 error_report("Option not supported for this target"); 3462 exit(1); 3463 } 3464 xen_domid = atoi(optarg); 3465 break; 3466 case QEMU_OPTION_xen_attach: 3467 if (!(accel_find("xen"))) { 3468 error_report("Option not supported for this target"); 3469 exit(1); 3470 } 3471 xen_mode = XEN_ATTACH; 3472 break; 3473 case QEMU_OPTION_xen_domid_restrict: 3474 if (!(accel_find("xen"))) { 3475 error_report("Option not supported for this target"); 3476 exit(1); 3477 } 3478 xen_domid_restrict = true; 3479 break; 3480 case QEMU_OPTION_trace: 3481 trace_opt_parse(optarg); 3482 break; 3483 case QEMU_OPTION_plugin: 3484 qemu_plugin_opt_parse(optarg, &plugin_list); 3485 break; 3486 case QEMU_OPTION_readconfig: 3487 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); 3488 break; 3489 #ifdef CONFIG_SPICE 3490 case QEMU_OPTION_spice: 3491 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false); 3492 if (!opts) { 3493 exit(1); 3494 } 3495 display_remote++; 3496 break; 3497 #endif 3498 case QEMU_OPTION_qtest: 3499 qtest_chrdev = optarg; 3500 break; 3501 case QEMU_OPTION_qtest_log: 3502 qtest_log = optarg; 3503 break; 3504 case QEMU_OPTION_sandbox: 3505 olist = qemu_find_opts("sandbox"); 3506 if (!olist) { 3507 #ifndef CONFIG_SECCOMP 3508 error_report("-sandbox support is not enabled " 3509 "in this QEMU binary"); 3510 #endif 3511 exit(1); 3512 } 3513 3514 opts = qemu_opts_parse_noisily(olist, optarg, true); 3515 if (!opts) { 3516 exit(1); 3517 } 3518 break; 3519 case QEMU_OPTION_add_fd: 3520 #ifndef _WIN32 3521 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), 3522 optarg, false); 3523 if (!opts) { 3524 exit(1); 3525 } 3526 #else 3527 error_report("File descriptor passing is disabled on this " 3528 "platform"); 3529 exit(1); 3530 #endif 3531 break; 3532 case QEMU_OPTION_object: 3533 object_option_parse(optarg); 3534 break; 3535 case QEMU_OPTION_overcommit: 3536 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), 3537 optarg, false); 3538 if (!opts) { 3539 exit(1); 3540 } 3541 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false); 3542 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false); 3543 break; 3544 case QEMU_OPTION_compat: 3545 { 3546 CompatPolicy *opts_policy; 3547 Visitor *v; 3548 3549 v = qobject_input_visitor_new_str(optarg, NULL, 3550 &error_fatal); 3551 3552 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); 3553 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); 3554 3555 qapi_free_CompatPolicy(opts_policy); 3556 visit_free(v); 3557 break; 3558 } 3559 case QEMU_OPTION_msg: 3560 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, 3561 false); 3562 if (!opts) { 3563 exit(1); 3564 } 3565 configure_msg(opts); 3566 break; 3567 case QEMU_OPTION_dump_vmstate: 3568 if (vmstate_dump_file) { 3569 error_report("only one '-dump-vmstate' " 3570 "option may be given"); 3571 exit(1); 3572 } 3573 vmstate_dump_file = fopen(optarg, "w"); 3574 if (vmstate_dump_file == NULL) { 3575 error_report("open %s: %s", optarg, strerror(errno)); 3576 exit(1); 3577 } 3578 break; 3579 case QEMU_OPTION_enable_sync_profile: 3580 qsp_enable(); 3581 break; 3582 case QEMU_OPTION_nouserconfig: 3583 /* Nothing to be parsed here. Especially, do not error out below. */ 3584 break; 3585 #if defined(CONFIG_POSIX) 3586 case QEMU_OPTION_runas: 3587 if (!os_set_runas(optarg)) { 3588 error_report("User \"%s\" doesn't exist" 3589 " (and is not <uid>:<gid>)", 3590 optarg); 3591 exit(1); 3592 } 3593 break; 3594 case QEMU_OPTION_chroot: 3595 warn_report("option is deprecated," 3596 " use '-run-with chroot=...' instead"); 3597 os_set_chroot(optarg); 3598 break; 3599 case QEMU_OPTION_daemonize: 3600 os_set_daemonize(true); 3601 break; 3602 #if defined(CONFIG_LINUX) 3603 /* deprecated */ 3604 case QEMU_OPTION_asyncteardown: 3605 init_async_teardown(); 3606 break; 3607 #endif 3608 case QEMU_OPTION_run_with: { 3609 const char *str; 3610 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), 3611 optarg, false); 3612 if (!opts) { 3613 exit(1); 3614 } 3615 #if defined(CONFIG_LINUX) 3616 if (qemu_opt_get_bool(opts, "async-teardown", false)) { 3617 init_async_teardown(); 3618 } 3619 #endif 3620 str = qemu_opt_get(opts, "chroot"); 3621 if (str) { 3622 os_set_chroot(str); 3623 } 3624 break; 3625 } 3626 #endif /* CONFIG_POSIX */ 3627 3628 default: 3629 error_report("Option not supported in this build"); 3630 exit(1); 3631 } 3632 } 3633 } 3634 /* 3635 * Clear error location left behind by the loop. 3636 * Best done right after the loop. Do not insert code here! 3637 */ 3638 loc_set_none(); 3639 3640 qemu_validate_options(machine_opts_dict); 3641 qemu_process_sugar_options(); 3642 3643 /* 3644 * These options affect everything else and should be processed 3645 * before daemonizing. 3646 */ 3647 qemu_process_early_options(); 3648 3649 qemu_process_help_options(); 3650 qemu_maybe_daemonize(pid_file); 3651 3652 /* 3653 * The trace backend must be initialized after daemonizing. 3654 * trace_init_backends() will call st_init(), which will create the 3655 * trace thread in the parent, and also register st_flush_trace_buffer() 3656 * in atexit(). This function will force the parent to wait for the 3657 * writeout thread to finish, which will not occur, and the parent 3658 * process will be left in the host. 3659 */ 3660 if (!trace_init_backends()) { 3661 exit(1); 3662 } 3663 trace_init_file(); 3664 3665 qemu_init_main_loop(&error_fatal); 3666 cpu_timers_init(); 3667 3668 user_register_global_props(); 3669 replay_configure(icount_opts); 3670 3671 configure_rtc(qemu_find_opts_singleton("rtc")); 3672 3673 /* Transfer QemuOpts options into machine options */ 3674 parse_memory_options(); 3675 3676 qemu_create_machine(machine_opts_dict); 3677 3678 suspend_mux_open(); 3679 3680 qemu_disable_default_devices(); 3681 qemu_setup_display(); 3682 qemu_create_default_devices(); 3683 qemu_create_early_backends(); 3684 3685 qemu_apply_legacy_machine_options(machine_opts_dict); 3686 qemu_apply_machine_options(machine_opts_dict); 3687 qobject_unref(machine_opts_dict); 3688 phase_advance(PHASE_MACHINE_CREATED); 3689 3690 /* 3691 * Note: uses machine properties such as kernel-irqchip, must run 3692 * after qemu_apply_machine_options. 3693 */ 3694 configure_accelerators(argv[0]); 3695 phase_advance(PHASE_ACCEL_CREATED); 3696 3697 /* 3698 * Beware, QOM objects created before this point miss global and 3699 * compat properties. 3700 * 3701 * Global properties get set up by qdev_prop_register_global(), 3702 * called from user_register_global_props(), and certain option 3703 * desugaring. Also in CPU feature desugaring (buried in 3704 * parse_cpu_option()), which happens below this point, but may 3705 * only target the CPU type, which can only be created after 3706 * parse_cpu_option() returned the type. 3707 * 3708 * Machine compat properties: object_set_machine_compat_props(). 3709 * Accelerator compat props: object_set_accelerator_compat_props(), 3710 * called from do_configure_accelerator(). 3711 */ 3712 3713 machine_class = MACHINE_GET_CLASS(current_machine); 3714 if (!qtest_enabled() && machine_class->deprecation_reason) { 3715 warn_report("Machine type '%s' is deprecated: %s", 3716 machine_class->name, machine_class->deprecation_reason); 3717 } 3718 3719 /* 3720 * Create backends before creating migration objects, so that it can 3721 * check against compatibilities on the backend memories (e.g. postcopy 3722 * over memory-backend-file objects). 3723 */ 3724 qemu_create_late_backends(); 3725 3726 /* 3727 * Note: creates a QOM object, must run only after global and 3728 * compat properties have been set up. 3729 */ 3730 migration_object_init(); 3731 3732 /* parse features once if machine provides default cpu_type */ 3733 current_machine->cpu_type = machine_class->default_cpu_type; 3734 if (cpu_option) { 3735 current_machine->cpu_type = parse_cpu_option(cpu_option); 3736 } 3737 /* NB: for machine none cpu_type could STILL be NULL here! */ 3738 3739 qemu_resolve_machine_memdev(); 3740 parse_numa_opts(current_machine); 3741 3742 if (vmstate_dump_file) { 3743 /* dump and exit */ 3744 module_load_qom_all(); 3745 dump_vmstate_json_to_file(vmstate_dump_file); 3746 exit(0); 3747 } 3748 3749 if (!preconfig_requested) { 3750 qmp_x_exit_preconfig(&error_fatal); 3751 } 3752 qemu_init_displays(); 3753 accel_setup_post(current_machine); 3754 os_setup_post(); 3755 resume_mux_open(); 3756 } 3757