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