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; 184 185 static int has_defaults = 1; 186 static int default_audio = 1; 187 static int default_serial = 1; 188 static int default_parallel = 1; 189 static int default_monitor = 1; 190 static int default_floppy = 1; 191 static int default_cdrom = 1; 192 static int default_sdcard = 1; 193 static int default_vga = 1; 194 static int default_net = 1; 195 196 static const struct { 197 const char *driver; 198 int *flag; 199 } default_list[] = { 200 { .driver = "xen-console", .flag = &default_serial }, 201 { .driver = "isa-serial", .flag = &default_serial }, 202 { .driver = "isa-parallel", .flag = &default_parallel }, 203 { .driver = "isa-fdc", .flag = &default_floppy }, 204 { .driver = "floppy", .flag = &default_floppy }, 205 { .driver = "ide-cd", .flag = &default_cdrom }, 206 { .driver = "ide-hd", .flag = &default_cdrom }, 207 { .driver = "scsi-cd", .flag = &default_cdrom }, 208 { .driver = "scsi-hd", .flag = &default_cdrom }, 209 { .driver = "VGA", .flag = &default_vga }, 210 { .driver = "isa-vga", .flag = &default_vga }, 211 { .driver = "cirrus-vga", .flag = &default_vga }, 212 { .driver = "isa-cirrus-vga", .flag = &default_vga }, 213 { .driver = "vmware-svga", .flag = &default_vga }, 214 { .driver = "qxl-vga", .flag = &default_vga }, 215 { .driver = "virtio-vga", .flag = &default_vga }, 216 { .driver = "ati-vga", .flag = &default_vga }, 217 { .driver = "vhost-user-vga", .flag = &default_vga }, 218 { .driver = "virtio-vga-gl", .flag = &default_vga }, 219 { .driver = "virtio-vga-rutabaga", .flag = &default_vga }, 220 }; 221 222 static QemuOptsList qemu_rtc_opts = { 223 .name = "rtc", 224 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head), 225 .merge_lists = true, 226 .desc = { 227 { 228 .name = "base", 229 .type = QEMU_OPT_STRING, 230 },{ 231 .name = "clock", 232 .type = QEMU_OPT_STRING, 233 },{ 234 .name = "driftfix", 235 .type = QEMU_OPT_STRING, 236 }, 237 { /* end of list */ } 238 }, 239 }; 240 241 static QemuOptsList qemu_option_rom_opts = { 242 .name = "option-rom", 243 .implied_opt_name = "romfile", 244 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head), 245 .desc = { 246 { 247 .name = "bootindex", 248 .type = QEMU_OPT_NUMBER, 249 }, { 250 .name = "romfile", 251 .type = QEMU_OPT_STRING, 252 }, 253 { /* end of list */ } 254 }, 255 }; 256 257 static QemuOptsList qemu_accel_opts = { 258 .name = "accel", 259 .implied_opt_name = "accel", 260 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head), 261 .desc = { 262 /* 263 * no elements => accept any 264 * sanity checking will happen later 265 * when setting accelerator properties 266 */ 267 { } 268 }, 269 }; 270 271 static QemuOptsList qemu_boot_opts = { 272 .name = "boot-opts", 273 .implied_opt_name = "order", 274 .merge_lists = true, 275 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head), 276 .desc = { 277 { 278 .name = "order", 279 .type = QEMU_OPT_STRING, 280 }, { 281 .name = "once", 282 .type = QEMU_OPT_STRING, 283 }, { 284 .name = "menu", 285 .type = QEMU_OPT_BOOL, 286 }, { 287 .name = "splash", 288 .type = QEMU_OPT_STRING, 289 }, { 290 .name = "splash-time", 291 .type = QEMU_OPT_NUMBER, 292 }, { 293 .name = "reboot-timeout", 294 .type = QEMU_OPT_NUMBER, 295 }, { 296 .name = "strict", 297 .type = QEMU_OPT_BOOL, 298 }, 299 { /*End of list */ } 300 }, 301 }; 302 303 static QemuOptsList qemu_add_fd_opts = { 304 .name = "add-fd", 305 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head), 306 .desc = { 307 { 308 .name = "fd", 309 .type = QEMU_OPT_NUMBER, 310 .help = "file descriptor of which a duplicate is added to fd set", 311 },{ 312 .name = "set", 313 .type = QEMU_OPT_NUMBER, 314 .help = "ID of the fd set to add fd to", 315 },{ 316 .name = "opaque", 317 .type = QEMU_OPT_STRING, 318 .help = "free-form string used to describe fd", 319 }, 320 { /* end of list */ } 321 }, 322 }; 323 324 static QemuOptsList qemu_object_opts = { 325 .name = "object", 326 .implied_opt_name = "qom-type", 327 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head), 328 .desc = { 329 { } 330 }, 331 }; 332 333 static QemuOptsList qemu_tpmdev_opts = { 334 .name = "tpmdev", 335 .implied_opt_name = "type", 336 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head), 337 .desc = { 338 /* options are defined in the TPM backends */ 339 { /* end of list */ } 340 }, 341 }; 342 343 static QemuOptsList qemu_overcommit_opts = { 344 .name = "overcommit", 345 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head), 346 .desc = { 347 { 348 .name = "mem-lock", 349 .type = QEMU_OPT_BOOL, 350 }, 351 { 352 .name = "cpu-pm", 353 .type = QEMU_OPT_BOOL, 354 }, 355 { /* end of list */ } 356 }, 357 }; 358 359 static QemuOptsList qemu_msg_opts = { 360 .name = "msg", 361 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head), 362 .desc = { 363 { 364 .name = "timestamp", 365 .type = QEMU_OPT_BOOL, 366 }, 367 { 368 .name = "guest-name", 369 .type = QEMU_OPT_BOOL, 370 .help = "Prepends guest name for error messages but only if " 371 "-name guest is set otherwise option is ignored\n", 372 }, 373 { /* end of list */ } 374 }, 375 }; 376 377 static QemuOptsList qemu_name_opts = { 378 .name = "name", 379 .implied_opt_name = "guest", 380 .merge_lists = true, 381 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head), 382 .desc = { 383 { 384 .name = "guest", 385 .type = QEMU_OPT_STRING, 386 .help = "Sets the name of the guest.\n" 387 "This name will be displayed in the SDL window caption.\n" 388 "The name will also be used for the VNC server", 389 }, { 390 .name = "process", 391 .type = QEMU_OPT_STRING, 392 .help = "Sets the name of the QEMU process, as shown in top etc", 393 }, { 394 .name = "debug-threads", 395 .type = QEMU_OPT_BOOL, 396 .help = "When enabled, name the individual threads; defaults off.\n" 397 "NOTE: The thread names are for debugging and not a\n" 398 "stable API.", 399 }, 400 { /* End of list */ } 401 }, 402 }; 403 404 static QemuOptsList qemu_mem_opts = { 405 .name = "memory", 406 .implied_opt_name = "size", 407 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head), 408 .merge_lists = true, 409 .desc = { 410 { 411 .name = "size", 412 .type = QEMU_OPT_SIZE, 413 }, 414 { 415 .name = "slots", 416 .type = QEMU_OPT_NUMBER, 417 }, 418 { 419 .name = "maxmem", 420 .type = QEMU_OPT_SIZE, 421 }, 422 { /* end of list */ } 423 }, 424 }; 425 426 static QemuOptsList qemu_icount_opts = { 427 .name = "icount", 428 .implied_opt_name = "shift", 429 .merge_lists = true, 430 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head), 431 .desc = { 432 { 433 .name = "shift", 434 .type = QEMU_OPT_STRING, 435 }, { 436 .name = "align", 437 .type = QEMU_OPT_BOOL, 438 }, { 439 .name = "sleep", 440 .type = QEMU_OPT_BOOL, 441 }, { 442 .name = "rr", 443 .type = QEMU_OPT_STRING, 444 }, { 445 .name = "rrfile", 446 .type = QEMU_OPT_STRING, 447 }, { 448 .name = "rrsnapshot", 449 .type = QEMU_OPT_STRING, 450 }, 451 { /* end of list */ } 452 }, 453 }; 454 455 static QemuOptsList qemu_fw_cfg_opts = { 456 .name = "fw_cfg", 457 .implied_opt_name = "name", 458 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head), 459 .desc = { 460 { 461 .name = "name", 462 .type = QEMU_OPT_STRING, 463 .help = "Sets the fw_cfg name of the blob to be inserted", 464 }, { 465 .name = "file", 466 .type = QEMU_OPT_STRING, 467 .help = "Sets the name of the file from which " 468 "the fw_cfg blob will be loaded", 469 }, { 470 .name = "string", 471 .type = QEMU_OPT_STRING, 472 .help = "Sets content of the blob to be inserted from a string", 473 }, { 474 .name = "gen_id", 475 .type = QEMU_OPT_STRING, 476 .help = "Sets id of the object generating the fw_cfg blob " 477 "to be inserted", 478 }, 479 { /* end of list */ } 480 }, 481 }; 482 483 static QemuOptsList qemu_action_opts = { 484 .name = "action", 485 .merge_lists = true, 486 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head), 487 .desc = { 488 { 489 .name = "shutdown", 490 .type = QEMU_OPT_STRING, 491 },{ 492 .name = "reboot", 493 .type = QEMU_OPT_STRING, 494 },{ 495 .name = "panic", 496 .type = QEMU_OPT_STRING, 497 },{ 498 .name = "watchdog", 499 .type = QEMU_OPT_STRING, 500 }, 501 { /* end of list */ } 502 }, 503 }; 504 505 const char *qemu_get_vm_name(void) 506 { 507 return qemu_name; 508 } 509 510 static void default_driver_disable(const char *driver) 511 { 512 int i; 513 514 if (!driver) { 515 return; 516 } 517 518 for (i = 0; i < ARRAY_SIZE(default_list); i++) { 519 if (strcmp(default_list[i].driver, driver) != 0) 520 continue; 521 *(default_list[i].flag) = 0; 522 } 523 } 524 525 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp) 526 { 527 const char *driver = qemu_opt_get(opts, "driver"); 528 529 default_driver_disable(driver); 530 return 0; 531 } 532 533 static void default_driver_check_json(void) 534 { 535 DeviceOption *opt; 536 537 QTAILQ_FOREACH(opt, &device_opts, next) { 538 const char *driver = qdict_get_try_str(opt->opts, "driver"); 539 default_driver_disable(driver); 540 } 541 } 542 543 static int parse_name(void *opaque, QemuOpts *opts, Error **errp) 544 { 545 const char *proc_name; 546 547 if (qemu_opt_get(opts, "debug-threads")) { 548 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false)); 549 } 550 qemu_name = qemu_opt_get(opts, "guest"); 551 552 proc_name = qemu_opt_get(opts, "process"); 553 if (proc_name) { 554 os_set_proc_name(proc_name); 555 } 556 557 return 0; 558 } 559 560 bool defaults_enabled(void) 561 { 562 return has_defaults; 563 } 564 565 #ifndef _WIN32 566 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp) 567 { 568 int fd, dupfd, flags; 569 int64_t fdset_id; 570 const char *fd_opaque = NULL; 571 AddfdInfo *fdinfo; 572 573 fd = qemu_opt_get_number(opts, "fd", -1); 574 fdset_id = qemu_opt_get_number(opts, "set", -1); 575 fd_opaque = qemu_opt_get(opts, "opaque"); 576 577 if (fd < 0) { 578 error_setg(errp, "fd option is required and must be non-negative"); 579 return -1; 580 } 581 582 if (fd <= STDERR_FILENO) { 583 error_setg(errp, "fd cannot be a standard I/O stream"); 584 return -1; 585 } 586 587 /* 588 * All fds inherited across exec() necessarily have FD_CLOEXEC 589 * clear, while qemu sets FD_CLOEXEC on all other fds used internally. 590 */ 591 flags = fcntl(fd, F_GETFD); 592 if (flags == -1 || (flags & FD_CLOEXEC)) { 593 error_setg(errp, "fd is not valid or already in use"); 594 return -1; 595 } 596 597 if (fdset_id < 0) { 598 error_setg(errp, "set option is required and must be non-negative"); 599 return -1; 600 } 601 602 #ifdef F_DUPFD_CLOEXEC 603 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0); 604 #else 605 dupfd = dup(fd); 606 if (dupfd != -1) { 607 qemu_set_cloexec(dupfd); 608 } 609 #endif 610 if (dupfd == -1) { 611 error_setg(errp, "error duplicating fd: %s", strerror(errno)); 612 return -1; 613 } 614 615 /* add the duplicate fd, and optionally the opaque string, to the fd set */ 616 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque, 617 &error_abort); 618 g_free(fdinfo); 619 620 return 0; 621 } 622 623 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp) 624 { 625 int fd; 626 627 fd = qemu_opt_get_number(opts, "fd", -1); 628 close(fd); 629 630 return 0; 631 } 632 #endif 633 634 /***********************************************************/ 635 /* QEMU Block devices */ 636 637 #define HD_OPTS "media=disk" 638 #define CDROM_OPTS "media=cdrom" 639 #define FD_OPTS "" 640 #define PFLASH_OPTS "" 641 #define MTD_OPTS "" 642 #define SD_OPTS "" 643 644 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp) 645 { 646 BlockInterfaceType *block_default_type = opaque; 647 648 return drive_new(opts, *block_default_type, errp) == NULL; 649 } 650 651 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp) 652 { 653 if (qemu_opt_get(opts, "snapshot") == NULL) { 654 qemu_opt_set(opts, "snapshot", "on", &error_abort); 655 } 656 return 0; 657 } 658 659 static void default_drive(int enable, int snapshot, BlockInterfaceType type, 660 int index, const char *optstr) 661 { 662 QemuOpts *opts; 663 DriveInfo *dinfo; 664 665 if (!enable || drive_get_by_index(type, index)) { 666 return; 667 } 668 669 opts = drive_add(type, index, NULL, optstr); 670 if (snapshot) { 671 drive_enable_snapshot(NULL, opts, NULL); 672 } 673 674 dinfo = drive_new(opts, type, &error_abort); 675 dinfo->is_default = true; 676 677 } 678 679 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue, 680 MachineClass *machine_class, int snapshot) 681 { 682 /* 683 * If the currently selected machine wishes to override the 684 * units-per-bus property of its default HBA interface type, do so 685 * now. 686 */ 687 if (machine_class->units_per_default_bus) { 688 override_max_devs(machine_class->block_default_type, 689 machine_class->units_per_default_bus); 690 } 691 692 /* open the virtual block devices */ 693 while (!QSIMPLEQ_EMPTY(bdo_queue)) { 694 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue); 695 696 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry); 697 loc_push_restore(&bdo->loc); 698 qmp_blockdev_add(bdo->bdo, &error_fatal); 699 loc_pop(&bdo->loc); 700 qapi_free_BlockdevOptions(bdo->bdo); 701 g_free(bdo); 702 } 703 if (snapshot) { 704 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, 705 NULL, NULL); 706 } 707 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, 708 &machine_class->block_default_type, &error_fatal)) { 709 /* We printed help */ 710 exit(0); 711 } 712 713 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2, 714 CDROM_OPTS); 715 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS); 716 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS); 717 718 } 719 720 static QemuOptsList qemu_smp_opts = { 721 .name = "smp-opts", 722 .implied_opt_name = "cpus", 723 .merge_lists = true, 724 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head), 725 .desc = { 726 { 727 .name = "cpus", 728 .type = QEMU_OPT_NUMBER, 729 }, { 730 .name = "drawers", 731 .type = QEMU_OPT_NUMBER, 732 }, { 733 .name = "books", 734 .type = QEMU_OPT_NUMBER, 735 }, { 736 .name = "sockets", 737 .type = QEMU_OPT_NUMBER, 738 }, { 739 .name = "dies", 740 .type = QEMU_OPT_NUMBER, 741 }, { 742 .name = "clusters", 743 .type = QEMU_OPT_NUMBER, 744 }, { 745 .name = "cores", 746 .type = QEMU_OPT_NUMBER, 747 }, { 748 .name = "threads", 749 .type = QEMU_OPT_NUMBER, 750 }, { 751 .name = "maxcpus", 752 .type = QEMU_OPT_NUMBER, 753 }, 754 { /*End of list */ } 755 }, 756 }; 757 758 #if defined(CONFIG_POSIX) 759 static QemuOptsList qemu_run_with_opts = { 760 .name = "run-with", 761 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head), 762 .desc = { 763 #if defined(CONFIG_LINUX) 764 { 765 .name = "async-teardown", 766 .type = QEMU_OPT_BOOL, 767 }, 768 #endif 769 { 770 .name = "chroot", 771 .type = QEMU_OPT_STRING, 772 }, 773 { /* end of list */ } 774 }, 775 }; 776 777 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts) 778 779 #else 780 781 #define qemu_add_run_with_opts() 782 783 #endif /* CONFIG_POSIX */ 784 785 static void realtime_init(void) 786 { 787 if (enable_mlock) { 788 if (os_mlock() < 0) { 789 error_report("locking memory failed"); 790 exit(1); 791 } 792 } 793 } 794 795 796 static void configure_msg(QemuOpts *opts) 797 { 798 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false); 799 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false); 800 } 801 802 803 /***********************************************************/ 804 /* USB devices */ 805 806 static int usb_device_add(const char *devname) 807 { 808 USBDevice *dev = NULL; 809 810 if (!machine_usb(current_machine)) { 811 return -1; 812 } 813 814 dev = usbdevice_create(devname); 815 if (!dev) 816 return -1; 817 818 return 0; 819 } 820 821 static int usb_parse(const char *cmdline) 822 { 823 int r; 824 r = usb_device_add(cmdline); 825 if (r < 0) { 826 error_report("could not add USB device '%s'", cmdline); 827 } 828 return r; 829 } 830 831 /***********************************************************/ 832 /* machine registration */ 833 834 static MachineClass *find_machine(const char *name, GSList *machines) 835 { 836 GSList *el; 837 838 for (el = machines; el; el = el->next) { 839 MachineClass *mc = el->data; 840 841 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) { 842 return mc; 843 } 844 } 845 846 return NULL; 847 } 848 849 static MachineClass *find_default_machine(GSList *machines) 850 { 851 GSList *el; 852 MachineClass *default_machineclass = NULL; 853 854 for (el = machines; el; el = el->next) { 855 MachineClass *mc = el->data; 856 857 if (mc->is_default) { 858 assert(default_machineclass == NULL && "Multiple default machines"); 859 default_machineclass = mc; 860 } 861 } 862 863 return default_machineclass; 864 } 865 866 static void version(void) 867 { 868 printf("QEMU emulator version " QEMU_FULL_VERSION "\n" 869 QEMU_COPYRIGHT "\n"); 870 } 871 872 static void help(int exitcode) 873 { 874 version(); 875 printf("usage: %s [options] [disk_image]\n\n" 876 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n", 877 g_get_prgname()); 878 879 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 880 if ((arch_mask) & arch_type) \ 881 fputs(opt_help, stdout); 882 883 #define ARCHHEADING(text, arch_mask) \ 884 if ((arch_mask) & arch_type) \ 885 puts(stringify(text)); 886 887 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL) 888 889 #include "qemu-options.def" 890 891 printf("\nDuring emulation, the following keys are useful:\n" 892 "ctrl-alt-f toggle full screen\n" 893 "ctrl-alt-n switch to virtual console 'n'\n" 894 "ctrl-alt toggle mouse and keyboard grab\n" 895 "\n" 896 "When using -nographic, press 'ctrl-a h' to get some help.\n" 897 "\n" 898 QEMU_HELP_BOTTOM "\n"); 899 900 exit(exitcode); 901 } 902 903 enum { 904 905 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 906 opt_enum, 907 #define DEFHEADING(text) 908 #define ARCHHEADING(text, arch_mask) 909 910 #include "qemu-options.def" 911 }; 912 913 #define HAS_ARG 0x0001 914 915 typedef struct QEMUOption { 916 const char *name; 917 int flags; 918 int index; 919 uint32_t arch_mask; 920 } QEMUOption; 921 922 static const QEMUOption qemu_options[] = { 923 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL }, 924 925 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 926 { option, opt_arg, opt_enum, arch_mask }, 927 #define DEFHEADING(text) 928 #define ARCHHEADING(text, arch_mask) 929 930 #include "qemu-options.def" 931 { /* end of list */ } 932 }; 933 934 typedef struct VGAInterfaceInfo { 935 const char *opt_name; /* option name */ 936 const char *name; /* human-readable name */ 937 /* Class names indicating that support is available. 938 * If no class is specified, the interface is always available */ 939 const char *class_names[2]; 940 } VGAInterfaceInfo; 941 942 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = { 943 [VGA_NONE] = { 944 .opt_name = "none", 945 .name = "no graphic card", 946 }, 947 [VGA_STD] = { 948 .opt_name = "std", 949 .name = "standard VGA", 950 .class_names = { "VGA", "isa-vga" }, 951 }, 952 [VGA_CIRRUS] = { 953 .opt_name = "cirrus", 954 .name = "Cirrus VGA", 955 .class_names = { "cirrus-vga", "isa-cirrus-vga" }, 956 }, 957 [VGA_VMWARE] = { 958 .opt_name = "vmware", 959 .name = "VMWare SVGA", 960 .class_names = { "vmware-svga" }, 961 }, 962 [VGA_VIRTIO] = { 963 .opt_name = "virtio", 964 .name = "Virtio VGA", 965 .class_names = { "virtio-vga" }, 966 }, 967 [VGA_QXL] = { 968 .opt_name = "qxl", 969 .name = "QXL VGA", 970 .class_names = { "qxl-vga" }, 971 }, 972 [VGA_TCX] = { 973 .opt_name = "tcx", 974 .name = "TCX framebuffer", 975 .class_names = { "sun-tcx" }, 976 }, 977 [VGA_CG3] = { 978 .opt_name = "cg3", 979 .name = "CG3 framebuffer", 980 .class_names = { "cgthree" }, 981 }, 982 #ifdef CONFIG_XEN_BACKEND 983 [VGA_XENFB] = { 984 .opt_name = "xenfb", 985 .name = "Xen paravirtualized framebuffer", 986 }, 987 #endif 988 }; 989 990 static bool vga_interface_available(VGAInterfaceType t) 991 { 992 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 993 994 assert(t < VGA_TYPE_MAX); 995 return !ti->class_names[0] || 996 module_object_class_by_name(ti->class_names[0]) || 997 module_object_class_by_name(ti->class_names[1]); 998 } 999 1000 static const char * 1001 get_default_vga_model(const MachineClass *machine_class) 1002 { 1003 if (machine_class->default_display) { 1004 for (int t = 0; t < VGA_TYPE_MAX; t++) { 1005 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1006 1007 if (ti->opt_name && vga_interface_available(t) && 1008 g_str_equal(ti->opt_name, machine_class->default_display)) { 1009 return machine_class->default_display; 1010 } 1011 } 1012 1013 warn_report_once("Default display '%s' is not available in this binary", 1014 machine_class->default_display); 1015 return NULL; 1016 } else if (vga_interface_available(VGA_CIRRUS)) { 1017 return "cirrus"; 1018 } else if (vga_interface_available(VGA_STD)) { 1019 return "std"; 1020 } 1021 1022 return NULL; 1023 } 1024 1025 static void select_vgahw(const MachineClass *machine_class, const char *p) 1026 { 1027 const char *opts; 1028 int t; 1029 1030 if (g_str_equal(p, "help")) { 1031 const char *def = get_default_vga_model(machine_class); 1032 1033 for (t = 0; t < VGA_TYPE_MAX; t++) { 1034 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1035 1036 if (vga_interface_available(t) && ti->opt_name) { 1037 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "", 1038 (def && g_str_equal(ti->opt_name, def)) ? 1039 " (default)" : ""); 1040 } 1041 } 1042 exit(0); 1043 } 1044 1045 assert(vga_interface_type == VGA_NONE); 1046 for (t = 0; t < VGA_TYPE_MAX; t++) { 1047 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1048 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) { 1049 if (!vga_interface_available(t)) { 1050 error_report("%s not available", ti->name); 1051 exit(1); 1052 } 1053 vga_interface_type = t; 1054 break; 1055 } 1056 } 1057 if (t == VGA_TYPE_MAX) { 1058 invalid_vga: 1059 error_report("unknown vga type: %s", p); 1060 exit(1); 1061 } 1062 while (*opts) { 1063 const char *nextopt; 1064 1065 if (strstart(opts, ",retrace=", &nextopt)) { 1066 opts = nextopt; 1067 if (strstart(opts, "dumb", &nextopt)) 1068 vga_retrace_method = VGA_RETRACE_DUMB; 1069 else if (strstart(opts, "precise", &nextopt)) 1070 vga_retrace_method = VGA_RETRACE_PRECISE; 1071 else goto invalid_vga; 1072 } else goto invalid_vga; 1073 opts = nextopt; 1074 } 1075 } 1076 1077 static void parse_display_qapi(const char *str) 1078 { 1079 DisplayOptions *opts; 1080 Visitor *v; 1081 1082 v = qobject_input_visitor_new_str(str, "type", &error_fatal); 1083 1084 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); 1085 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts); 1086 1087 qapi_free_DisplayOptions(opts); 1088 visit_free(v); 1089 } 1090 1091 DisplayOptions *qmp_query_display_options(Error **errp) 1092 { 1093 return QAPI_CLONE(DisplayOptions, &dpy); 1094 } 1095 1096 static void parse_display(const char *p) 1097 { 1098 if (is_help_option(p)) { 1099 qemu_display_help(); 1100 exit(0); 1101 } 1102 1103 #ifdef CONFIG_VNC 1104 const char *opts; 1105 1106 if (strstart(p, "vnc", &opts)) { 1107 /* 1108 * vnc isn't a (local) DisplayType but a protocol for remote 1109 * display access. 1110 */ 1111 if (*opts == '=') { 1112 vnc_parse(opts + 1); 1113 display_remote++; 1114 } else { 1115 error_report("VNC requires a display argument vnc=<display>"); 1116 exit(1); 1117 } 1118 return; 1119 } 1120 #endif 1121 1122 parse_display_qapi(p); 1123 } 1124 1125 static inline bool nonempty_str(const char *str) 1126 { 1127 return str && *str; 1128 } 1129 1130 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) 1131 { 1132 gchar *buf; 1133 size_t size; 1134 const char *name, *file, *str, *gen_id; 1135 FWCfgState *fw_cfg = (FWCfgState *) opaque; 1136 1137 if (fw_cfg == NULL) { 1138 error_setg(errp, "fw_cfg device not available"); 1139 return -1; 1140 } 1141 name = qemu_opt_get(opts, "name"); 1142 file = qemu_opt_get(opts, "file"); 1143 str = qemu_opt_get(opts, "string"); 1144 gen_id = qemu_opt_get(opts, "gen_id"); 1145 1146 /* we need the name, and exactly one of: file, content string, gen_id */ 1147 if (!nonempty_str(name) || 1148 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) { 1149 error_setg(errp, "name, plus exactly one of file," 1150 " string and gen_id, are needed"); 1151 return -1; 1152 } 1153 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { 1154 error_setg(errp, "name too long (max. %d char)", 1155 FW_CFG_MAX_FILE_PATH - 1); 1156 return -1; 1157 } 1158 if (nonempty_str(gen_id)) { 1159 /* 1160 * In this particular case where the content is populated 1161 * internally, the "etc/" namespace protection is relaxed, 1162 * so do not emit a warning. 1163 */ 1164 } else if (strncmp(name, "opt/", 4) != 0) { 1165 warn_report("externally provided fw_cfg item names " 1166 "should be prefixed with \"opt/\""); 1167 } 1168 if (nonempty_str(str)) { 1169 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */ 1170 buf = g_memdup(str, size); 1171 } else if (nonempty_str(gen_id)) { 1172 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) { 1173 return -1; 1174 } 1175 return 0; 1176 } else { 1177 GError *err = NULL; 1178 if (!g_file_get_contents(file, &buf, &size, &err)) { 1179 error_setg(errp, "can't load %s: %s", file, err->message); 1180 g_error_free(err); 1181 return -1; 1182 } 1183 } 1184 /* For legacy, keep user files in a specific global order. */ 1185 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); 1186 fw_cfg_add_file(fw_cfg, name, buf, size); 1187 fw_cfg_reset_order_override(fw_cfg); 1188 return 0; 1189 } 1190 1191 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) 1192 { 1193 return qdev_device_help(opts); 1194 } 1195 1196 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) 1197 { 1198 DeviceState *dev; 1199 1200 dev = qdev_device_add(opts, errp); 1201 if (!dev && *errp) { 1202 error_report_err(*errp); 1203 return -1; 1204 } else if (dev) { 1205 object_unref(OBJECT(dev)); 1206 } 1207 return 0; 1208 } 1209 1210 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1211 { 1212 Error *local_err = NULL; 1213 1214 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { 1215 if (local_err) { 1216 error_propagate(errp, local_err); 1217 return -1; 1218 } 1219 exit(0); 1220 } 1221 return 0; 1222 } 1223 1224 #ifdef CONFIG_VIRTFS 1225 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1226 { 1227 return qemu_fsdev_add(opts, errp); 1228 } 1229 #endif 1230 1231 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) 1232 { 1233 return monitor_init_opts(opts, errp); 1234 } 1235 1236 static void monitor_parse(const char *str, const char *mode, bool pretty) 1237 { 1238 static int monitor_device_index = 0; 1239 QemuOpts *opts; 1240 const char *p; 1241 char label[32]; 1242 1243 if (strstart(str, "chardev:", &p)) { 1244 snprintf(label, sizeof(label), "%s", p); 1245 } else { 1246 snprintf(label, sizeof(label), "compat_monitor%d", 1247 monitor_device_index); 1248 opts = qemu_chr_parse_compat(label, str, true); 1249 if (!opts) { 1250 error_report("parse error: %s", str); 1251 exit(1); 1252 } 1253 } 1254 1255 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); 1256 qemu_opt_set(opts, "mode", mode, &error_abort); 1257 qemu_opt_set(opts, "chardev", label, &error_abort); 1258 if (!strcmp(mode, "control")) { 1259 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); 1260 } else { 1261 assert(pretty == false); 1262 } 1263 monitor_device_index++; 1264 } 1265 1266 struct device_config { 1267 enum { 1268 DEV_USB, /* -usbdevice */ 1269 DEV_SERIAL, /* -serial */ 1270 DEV_PARALLEL, /* -parallel */ 1271 DEV_DEBUGCON, /* -debugcon */ 1272 DEV_GDB, /* -gdb, -s */ 1273 DEV_SCLP, /* s390 sclp */ 1274 } type; 1275 const char *cmdline; 1276 Location loc; 1277 QTAILQ_ENTRY(device_config) next; 1278 }; 1279 1280 static QTAILQ_HEAD(, device_config) device_configs = 1281 QTAILQ_HEAD_INITIALIZER(device_configs); 1282 1283 static void add_device_config(int type, const char *cmdline) 1284 { 1285 struct device_config *conf; 1286 1287 conf = g_malloc0(sizeof(*conf)); 1288 conf->type = type; 1289 conf->cmdline = cmdline; 1290 loc_save(&conf->loc); 1291 QTAILQ_INSERT_TAIL(&device_configs, conf, next); 1292 } 1293 1294 static int foreach_device_config(int type, int (*func)(const char *cmdline)) 1295 { 1296 struct device_config *conf; 1297 int rc; 1298 1299 QTAILQ_FOREACH(conf, &device_configs, next) { 1300 if (conf->type != type) 1301 continue; 1302 loc_push_restore(&conf->loc); 1303 rc = func(conf->cmdline); 1304 loc_pop(&conf->loc); 1305 if (rc) { 1306 return rc; 1307 } 1308 } 1309 return 0; 1310 } 1311 1312 static void qemu_disable_default_devices(void) 1313 { 1314 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1315 1316 default_driver_check_json(); 1317 qemu_opts_foreach(qemu_find_opts("device"), 1318 default_driver_check, NULL, NULL); 1319 qemu_opts_foreach(qemu_find_opts("global"), 1320 default_driver_check, NULL, NULL); 1321 1322 if (!vga_model && !default_vga) { 1323 vga_interface_type = VGA_DEVICE; 1324 vga_interface_created = true; 1325 } 1326 if (!has_defaults || machine_class->no_serial) { 1327 default_serial = 0; 1328 } 1329 if (!has_defaults || machine_class->no_parallel) { 1330 default_parallel = 0; 1331 } 1332 if (!has_defaults || machine_class->no_floppy) { 1333 default_floppy = 0; 1334 } 1335 if (!has_defaults || machine_class->no_cdrom) { 1336 default_cdrom = 0; 1337 } 1338 if (!has_defaults || machine_class->no_sdcard) { 1339 default_sdcard = 0; 1340 } 1341 if (!has_defaults) { 1342 default_audio = 0; 1343 default_monitor = 0; 1344 default_net = 0; 1345 default_vga = 0; 1346 } else { 1347 if (default_net && machine_class->default_nic && 1348 !module_object_class_by_name(machine_class->default_nic)) { 1349 warn_report("Default NIC '%s' is not available in this binary", 1350 machine_class->default_nic); 1351 default_net = 0; 1352 } 1353 } 1354 } 1355 1356 static void qemu_setup_display(void) 1357 { 1358 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { 1359 if (!qemu_display_find_default(&dpy)) { 1360 dpy.type = DISPLAY_TYPE_NONE; 1361 #if defined(CONFIG_VNC) 1362 vnc_parse("localhost:0,to=99,id=default"); 1363 display_remote++; 1364 #endif 1365 } 1366 } 1367 if (dpy.type == DISPLAY_TYPE_DEFAULT) { 1368 dpy.type = DISPLAY_TYPE_NONE; 1369 } 1370 1371 qemu_display_early_init(&dpy); 1372 } 1373 1374 static void qemu_create_default_devices(void) 1375 { 1376 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1377 const char *vc = qemu_display_get_vc(&dpy); 1378 1379 if (is_daemonized()) { 1380 /* According to documentation and historically, -nographic redirects 1381 * serial port, parallel port and monitor to stdio, which does not work 1382 * with -daemonize. We can redirect these to null instead, but since 1383 * -nographic is legacy, let's just error out. 1384 * We disallow -nographic only if all other ports are not redirected 1385 * explicitly, to not break existing legacy setups which uses 1386 * -nographic _and_ redirects all ports explicitly - this is valid 1387 * usage, -nographic is just a no-op in this case. 1388 */ 1389 if (nographic 1390 && (default_parallel || default_serial || default_monitor)) { 1391 error_report("-nographic cannot be used with -daemonize"); 1392 exit(1); 1393 } 1394 } 1395 1396 if (nographic) { 1397 if (default_parallel) { 1398 add_device_config(DEV_PARALLEL, "null"); 1399 } 1400 if (default_serial && default_monitor) { 1401 add_device_config(DEV_SERIAL, "mon:stdio"); 1402 } else { 1403 if (default_serial) { 1404 add_device_config(DEV_SERIAL, "stdio"); 1405 } 1406 if (default_monitor) { 1407 monitor_parse("stdio", "readline", false); 1408 } 1409 } 1410 } else { 1411 if (default_serial) { 1412 add_device_config(DEV_SERIAL, vc ?: "null"); 1413 } 1414 if (default_parallel) { 1415 add_device_config(DEV_PARALLEL, vc ?: "null"); 1416 } 1417 if (default_monitor && vc) { 1418 monitor_parse(vc, "readline", false); 1419 } 1420 } 1421 1422 if (default_net) { 1423 QemuOptsList *net = qemu_find_opts("net"); 1424 qemu_opts_parse(net, "nic", true, &error_abort); 1425 #ifdef CONFIG_SLIRP 1426 qemu_opts_parse(net, "user", true, &error_abort); 1427 #endif 1428 } 1429 1430 /* If no default VGA is requested, the default is "none". */ 1431 if (default_vga) { 1432 vga_model = get_default_vga_model(machine_class); 1433 } 1434 if (vga_model) { 1435 select_vgahw(machine_class, vga_model); 1436 } 1437 } 1438 1439 static int serial_parse(const char *devname) 1440 { 1441 int index = num_serial_hds; 1442 char label[32]; 1443 1444 if (strcmp(devname, "none") == 0) 1445 return 0; 1446 snprintf(label, sizeof(label), "serial%d", index); 1447 serial_hds = g_renew(Chardev *, serial_hds, index + 1); 1448 1449 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1450 if (!serial_hds[index]) { 1451 error_report("could not connect serial device" 1452 " to character backend '%s'", devname); 1453 return -1; 1454 } 1455 num_serial_hds++; 1456 return 0; 1457 } 1458 1459 Chardev *serial_hd(int i) 1460 { 1461 assert(i >= 0); 1462 if (i < num_serial_hds) { 1463 return serial_hds[i]; 1464 } 1465 return NULL; 1466 } 1467 1468 static int parallel_parse(const char *devname) 1469 { 1470 static int index = 0; 1471 char label[32]; 1472 1473 if (strcmp(devname, "none") == 0) 1474 return 0; 1475 if (index == MAX_PARALLEL_PORTS) { 1476 error_report("too many parallel ports"); 1477 exit(1); 1478 } 1479 snprintf(label, sizeof(label), "parallel%d", index); 1480 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1481 if (!parallel_hds[index]) { 1482 error_report("could not connect parallel device" 1483 " to character backend '%s'", devname); 1484 return -1; 1485 } 1486 index++; 1487 return 0; 1488 } 1489 1490 static int debugcon_parse(const char *devname) 1491 { 1492 QemuOpts *opts; 1493 1494 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { 1495 error_report("invalid character backend '%s'", devname); 1496 exit(1); 1497 } 1498 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); 1499 if (!opts) { 1500 error_report("already have a debugcon device"); 1501 exit(1); 1502 } 1503 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); 1504 qemu_opt_set(opts, "chardev", "debugcon", &error_abort); 1505 return 0; 1506 } 1507 1508 static gint machine_class_cmp(gconstpointer a, gconstpointer b) 1509 { 1510 const MachineClass *mc1 = a, *mc2 = b; 1511 int res; 1512 1513 if (mc1->family == NULL) { 1514 if (mc2->family == NULL) { 1515 /* Compare standalone machine types against each other; they sort 1516 * in increasing order. 1517 */ 1518 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), 1519 object_class_get_name(OBJECT_CLASS(mc2))); 1520 } 1521 1522 /* Standalone machine types sort after families. */ 1523 return 1; 1524 } 1525 1526 if (mc2->family == NULL) { 1527 /* Families sort before standalone machine types. */ 1528 return -1; 1529 } 1530 1531 /* Families sort between each other alphabetically increasingly. */ 1532 res = strcmp(mc1->family, mc2->family); 1533 if (res != 0) { 1534 return res; 1535 } 1536 1537 /* Within the same family, machine types sort in decreasing order. */ 1538 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), 1539 object_class_get_name(OBJECT_CLASS(mc1))); 1540 } 1541 1542 static void machine_help_func(const QDict *qdict) 1543 { 1544 g_autoptr(GSList) machines = NULL; 1545 GSList *el; 1546 const char *type = qdict_get_try_str(qdict, "type"); 1547 1548 machines = object_class_get_list(TYPE_MACHINE, false); 1549 if (type) { 1550 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); 1551 if (machine_class) { 1552 type_print_class_properties(object_class_get_name(machine_class)); 1553 return; 1554 } 1555 } 1556 1557 printf("Supported machines are:\n"); 1558 machines = g_slist_sort(machines, machine_class_cmp); 1559 for (el = machines; el; el = el->next) { 1560 MachineClass *mc = el->data; 1561 if (mc->alias) { 1562 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); 1563 } 1564 printf("%-20s %s%s%s\n", mc->name, mc->desc, 1565 mc->is_default ? " (default)" : "", 1566 mc->deprecation_reason ? " (deprecated)" : ""); 1567 } 1568 } 1569 1570 static void 1571 machine_merge_property(const char *propname, QDict *prop, Error **errp) 1572 { 1573 QDict *opts; 1574 1575 opts = qdict_new(); 1576 /* Preserve the caller's reference to prop. */ 1577 qobject_ref(prop); 1578 qdict_put(opts, propname, prop); 1579 keyval_merge(machine_opts_dict, opts, errp); 1580 qobject_unref(opts); 1581 } 1582 1583 static void 1584 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, 1585 const char *arg) 1586 { 1587 QDict *prop = NULL; 1588 bool help = false; 1589 1590 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); 1591 if (help) { 1592 qemu_opts_print_help(opts_list, true); 1593 exit(0); 1594 } 1595 machine_merge_property(propname, prop, &error_fatal); 1596 qobject_unref(prop); 1597 } 1598 1599 static const char *pid_file; 1600 struct UnlinkPidfileNotifier { 1601 Notifier notifier; 1602 char *pid_file_realpath; 1603 }; 1604 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; 1605 1606 static void qemu_unlink_pidfile(Notifier *n, void *data) 1607 { 1608 struct UnlinkPidfileNotifier *upn; 1609 1610 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); 1611 unlink(upn->pid_file_realpath); 1612 } 1613 1614 static const QEMUOption *lookup_opt(int argc, char **argv, 1615 const char **poptarg, int *poptind) 1616 { 1617 const QEMUOption *popt; 1618 int optind = *poptind; 1619 char *r = argv[optind]; 1620 const char *optarg; 1621 1622 loc_set_cmdline(argv, optind, 1); 1623 optind++; 1624 /* Treat --foo the same as -foo. */ 1625 if (r[1] == '-') 1626 r++; 1627 popt = qemu_options; 1628 for(;;) { 1629 if (!popt->name) { 1630 error_report("invalid option"); 1631 exit(1); 1632 } 1633 if (!strcmp(popt->name, r + 1)) 1634 break; 1635 popt++; 1636 } 1637 if (popt->flags & HAS_ARG) { 1638 if (optind >= argc) { 1639 error_report("requires an argument"); 1640 exit(1); 1641 } 1642 optarg = argv[optind++]; 1643 loc_set_cmdline(argv, optind - 2, 2); 1644 } else { 1645 optarg = NULL; 1646 } 1647 1648 *poptarg = optarg; 1649 *poptind = optind; 1650 1651 return popt; 1652 } 1653 1654 static MachineClass *select_machine(QDict *qdict, Error **errp) 1655 { 1656 const char *machine_type = qdict_get_try_str(qdict, "type"); 1657 GSList *machines = object_class_get_list(TYPE_MACHINE, false); 1658 MachineClass *machine_class; 1659 Error *local_err = NULL; 1660 1661 if (machine_type) { 1662 machine_class = find_machine(machine_type, machines); 1663 qdict_del(qdict, "type"); 1664 if (!machine_class) { 1665 error_setg(&local_err, "unsupported machine type"); 1666 } 1667 } else { 1668 machine_class = find_default_machine(machines); 1669 if (!machine_class) { 1670 error_setg(&local_err, "No machine specified, and there is no default"); 1671 } 1672 } 1673 1674 g_slist_free(machines); 1675 if (local_err) { 1676 error_append_hint(&local_err, "Use -machine help to list supported machines\n"); 1677 error_propagate(errp, local_err); 1678 } 1679 return machine_class; 1680 } 1681 1682 static int object_parse_property_opt(Object *obj, 1683 const char *name, const char *value, 1684 const char *skip, Error **errp) 1685 { 1686 if (g_str_equal(name, skip)) { 1687 return 0; 1688 } 1689 1690 if (!object_property_parse(obj, name, value, errp)) { 1691 return -1; 1692 } 1693 1694 return 0; 1695 } 1696 1697 /* *Non*recursively replace underscores with dashes in QDict keys. */ 1698 static void keyval_dashify(QDict *qdict, Error **errp) 1699 { 1700 const QDictEntry *ent, *next; 1701 char *p; 1702 1703 for (ent = qdict_first(qdict); ent; ent = next) { 1704 g_autofree char *new_key = NULL; 1705 1706 next = qdict_next(qdict, ent); 1707 if (!strchr(ent->key, '_')) { 1708 continue; 1709 } 1710 new_key = g_strdup(ent->key); 1711 for (p = new_key; *p; p++) { 1712 if (*p == '_') { 1713 *p = '-'; 1714 } 1715 } 1716 if (qdict_haskey(qdict, new_key)) { 1717 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); 1718 return; 1719 } 1720 qobject_ref(ent->value); 1721 qdict_put_obj(qdict, new_key, ent->value); 1722 qdict_del(qdict, ent->key); 1723 } 1724 } 1725 1726 static void qemu_apply_legacy_machine_options(QDict *qdict) 1727 { 1728 const char *value; 1729 QObject *prop; 1730 1731 keyval_dashify(qdict, &error_fatal); 1732 1733 /* Legacy options do not correspond to MachineState properties. */ 1734 value = qdict_get_try_str(qdict, "accel"); 1735 if (value) { 1736 accelerators = g_strdup(value); 1737 qdict_del(qdict, "accel"); 1738 } 1739 1740 value = qdict_get_try_str(qdict, "igd-passthru"); 1741 if (value) { 1742 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, 1743 false); 1744 qdict_del(qdict, "igd-passthru"); 1745 } 1746 1747 value = qdict_get_try_str(qdict, "kvm-shadow-mem"); 1748 if (value) { 1749 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, 1750 false); 1751 qdict_del(qdict, "kvm-shadow-mem"); 1752 } 1753 1754 value = qdict_get_try_str(qdict, "kernel-irqchip"); 1755 if (value) { 1756 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, 1757 false); 1758 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, 1759 false); 1760 qdict_del(qdict, "kernel-irqchip"); 1761 } 1762 1763 value = qdict_get_try_str(qdict, "memory-backend"); 1764 if (value) { 1765 if (mem_path) { 1766 error_report("'-mem-path' can't be used together with" 1767 "'-machine memory-backend'"); 1768 exit(EXIT_FAILURE); 1769 } 1770 1771 /* Resolved later. */ 1772 ram_memdev_id = g_strdup(value); 1773 qdict_del(qdict, "memory-backend"); 1774 } 1775 1776 prop = qdict_get(qdict, "memory"); 1777 if (prop) { 1778 have_custom_ram_size = 1779 qobject_type(prop) == QTYPE_QDICT && 1780 qdict_haskey(qobject_to(QDict, prop), "size"); 1781 } 1782 } 1783 1784 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) 1785 { 1786 ObjectOption *opt, *next; 1787 1788 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { 1789 const char *type = ObjectType_str(opt->opts->qom_type); 1790 if (type_opt_predicate(type)) { 1791 user_creatable_add_qapi(opt->opts, &error_fatal); 1792 qapi_free_ObjectOptions(opt->opts); 1793 QTAILQ_REMOVE(&object_opts, opt, next); 1794 g_free(opt); 1795 } 1796 } 1797 } 1798 1799 static void object_option_add_visitor(Visitor *v) 1800 { 1801 ObjectOption *opt = g_new0(ObjectOption, 1); 1802 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); 1803 QTAILQ_INSERT_TAIL(&object_opts, opt, next); 1804 } 1805 1806 static void object_option_parse(const char *str) 1807 { 1808 QemuOpts *opts; 1809 const char *type; 1810 Visitor *v; 1811 1812 if (str[0] == '{') { 1813 QObject *obj = qobject_from_json(str, &error_fatal); 1814 1815 v = qobject_input_visitor_new(obj); 1816 qobject_unref(obj); 1817 } else { 1818 opts = qemu_opts_parse_noisily(qemu_find_opts("object"), 1819 str, true); 1820 if (!opts) { 1821 exit(1); 1822 } 1823 1824 type = qemu_opt_get(opts, "qom-type"); 1825 if (!type) { 1826 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type"); 1827 } 1828 if (user_creatable_print_help(type, opts)) { 1829 exit(0); 1830 } 1831 1832 v = opts_visitor_new(opts); 1833 } 1834 1835 object_option_add_visitor(v); 1836 visit_free(v); 1837 } 1838 1839 /* 1840 * Very early object creation, before the sandbox options have been activated. 1841 */ 1842 static bool object_create_pre_sandbox(const char *type) 1843 { 1844 /* 1845 * Objects should in general not get initialized "too early" without 1846 * a reason. If you add one, state the reason in a comment! 1847 */ 1848 1849 /* 1850 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU 1851 * affinity of threads. 1852 */ 1853 if (g_str_equal(type, "thread-context")) { 1854 return true; 1855 } 1856 1857 return false; 1858 } 1859 1860 /* 1861 * Initial object creation happens before all other 1862 * QEMU data types are created. The majority of objects 1863 * can be created at this point. The rng-egd object 1864 * cannot be created here, as it depends on the chardev 1865 * already existing. 1866 */ 1867 static bool object_create_early(const char *type) 1868 { 1869 /* 1870 * Objects should not be made "delayed" without a reason. If you 1871 * add one, state the reason in a comment! 1872 */ 1873 1874 /* Reason: already created. */ 1875 if (object_create_pre_sandbox(type)) { 1876 return false; 1877 } 1878 1879 /* Reason: property "chardev" */ 1880 if (g_str_equal(type, "rng-egd") || 1881 g_str_equal(type, "qtest")) { 1882 return false; 1883 } 1884 1885 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) 1886 /* Reason: cryptodev-vhost-user property "chardev" */ 1887 if (g_str_equal(type, "cryptodev-vhost-user")) { 1888 return false; 1889 } 1890 #endif 1891 1892 /* Reason: vhost-user-blk-server property "node-name" */ 1893 if (g_str_equal(type, "vhost-user-blk-server")) { 1894 return false; 1895 } 1896 /* 1897 * Reason: filter-* property "netdev" etc. 1898 */ 1899 if (g_str_equal(type, "filter-buffer") || 1900 g_str_equal(type, "filter-dump") || 1901 g_str_equal(type, "filter-mirror") || 1902 g_str_equal(type, "filter-redirector") || 1903 g_str_equal(type, "colo-compare") || 1904 g_str_equal(type, "filter-rewriter") || 1905 g_str_equal(type, "filter-replay")) { 1906 return false; 1907 } 1908 1909 /* 1910 * Allocation of large amounts of memory may delay 1911 * chardev initialization for too long, and trigger timeouts 1912 * on software that waits for a monitor socket to be created 1913 * (e.g. libvirt). 1914 */ 1915 if (g_str_has_prefix(type, "memory-backend-")) { 1916 return false; 1917 } 1918 1919 return true; 1920 } 1921 1922 static void qemu_apply_machine_options(QDict *qdict) 1923 { 1924 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); 1925 1926 if (semihosting_enabled(false) && !semihosting_get_argc()) { 1927 /* fall back to the -kernel/-append */ 1928 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); 1929 } 1930 1931 if (current_machine->smp.cpus > 1) { 1932 replay_add_blocker("smp"); 1933 } 1934 } 1935 1936 static void qemu_create_early_backends(void) 1937 { 1938 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1939 #if defined(CONFIG_SDL) 1940 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); 1941 #else 1942 const bool use_sdl = false; 1943 #endif 1944 #if defined(CONFIG_GTK) 1945 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); 1946 #else 1947 const bool use_gtk = false; 1948 #endif 1949 1950 if (dpy.has_window_close && !use_gtk && !use_sdl) { 1951 error_report("window-close is only valid for GTK and SDL, " 1952 "ignoring option"); 1953 } 1954 1955 qemu_console_early_init(); 1956 1957 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) { 1958 #if defined(CONFIG_OPENGL) 1959 error_report("OpenGL is not supported by the display"); 1960 #else 1961 error_report("OpenGL support is disabled"); 1962 #endif 1963 exit(1); 1964 } 1965 1966 object_option_foreach_add(object_create_early); 1967 1968 /* spice needs the timers to be initialized by this point */ 1969 /* spice must initialize before audio as it changes the default audiodev */ 1970 /* spice must initialize before chardevs (for spicevmc and spiceport) */ 1971 qemu_spice.init(); 1972 1973 qemu_opts_foreach(qemu_find_opts("chardev"), 1974 chardev_init_func, NULL, &error_fatal); 1975 1976 #ifdef CONFIG_VIRTFS 1977 qemu_opts_foreach(qemu_find_opts("fsdev"), 1978 fsdev_init_func, NULL, &error_fatal); 1979 #endif 1980 1981 /* 1982 * Note: we need to create audio and block backends before 1983 * setting machine properties, so they can be referred to. 1984 */ 1985 configure_blockdev(&bdo_queue, machine_class, snapshot); 1986 audio_init_audiodevs(); 1987 if (default_audio) { 1988 audio_create_default_audiodevs(); 1989 } 1990 } 1991 1992 1993 /* 1994 * The remainder of object creation happens after the 1995 * creation of chardev, fsdev, net clients and device data types. 1996 */ 1997 static bool object_create_late(const char *type) 1998 { 1999 return !object_create_early(type) && !object_create_pre_sandbox(type); 2000 } 2001 2002 static void qemu_create_late_backends(void) 2003 { 2004 if (qtest_chrdev) { 2005 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); 2006 } 2007 2008 net_init_clients(); 2009 2010 object_option_foreach_add(object_create_late); 2011 2012 if (tpm_init() < 0) { 2013 exit(1); 2014 } 2015 2016 qemu_opts_foreach(qemu_find_opts("mon"), 2017 mon_init_func, NULL, &error_fatal); 2018 2019 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) 2020 exit(1); 2021 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) 2022 exit(1); 2023 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0) 2024 exit(1); 2025 2026 /* now chardevs have been created we may have semihosting to connect */ 2027 qemu_semihosting_chardev_init(); 2028 } 2029 2030 static void qemu_resolve_machine_memdev(void) 2031 { 2032 if (ram_memdev_id) { 2033 Object *backend; 2034 ram_addr_t backend_size; 2035 2036 backend = object_resolve_path_type(ram_memdev_id, 2037 TYPE_MEMORY_BACKEND, NULL); 2038 if (!backend) { 2039 error_report("Memory backend '%s' not found", ram_memdev_id); 2040 exit(EXIT_FAILURE); 2041 } 2042 if (!have_custom_ram_size) { 2043 backend_size = object_property_get_uint(backend, "size", &error_abort); 2044 current_machine->ram_size = backend_size; 2045 } 2046 object_property_set_link(OBJECT(current_machine), 2047 "memory-backend", backend, &error_fatal); 2048 } 2049 } 2050 2051 static void parse_memory_options(void) 2052 { 2053 QemuOpts *opts = qemu_find_opts_singleton("memory"); 2054 QDict *dict, *prop; 2055 const char *mem_str; 2056 Location loc; 2057 2058 loc_push_none(&loc); 2059 qemu_opts_loc_restore(opts); 2060 2061 prop = qdict_new(); 2062 2063 if (qemu_opt_get_size(opts, "size", 0) != 0) { 2064 /* Fix up legacy suffix-less format */ 2065 mem_str = qemu_opt_get(opts, "size"); 2066 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { 2067 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); 2068 qdict_put_str(prop, "size", mib_str); 2069 } else { 2070 qdict_put_str(prop, "size", mem_str); 2071 } 2072 } 2073 2074 if (qemu_opt_get(opts, "maxmem")) { 2075 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); 2076 } 2077 if (qemu_opt_get(opts, "slots")) { 2078 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); 2079 } 2080 2081 dict = qdict_new(); 2082 qdict_put(dict, "memory", prop); 2083 keyval_merge(machine_opts_dict, dict, &error_fatal); 2084 qobject_unref(dict); 2085 loc_pop(&loc); 2086 } 2087 2088 static void qemu_create_machine(QDict *qdict) 2089 { 2090 MachineClass *machine_class = select_machine(qdict, &error_fatal); 2091 object_set_machine_compat_props(machine_class->compat_props); 2092 2093 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); 2094 object_property_add_child(object_get_root(), "machine", 2095 OBJECT(current_machine)); 2096 object_property_add_child(container_get(OBJECT(current_machine), 2097 "/unattached"), 2098 "sysbus", OBJECT(sysbus_get_default())); 2099 2100 if (machine_class->minimum_page_bits) { 2101 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { 2102 /* This would be a board error: specifying a minimum smaller than 2103 * a target's compile-time fixed setting. 2104 */ 2105 g_assert_not_reached(); 2106 } 2107 } 2108 2109 cpu_exec_init_all(); 2110 page_size_init(); 2111 2112 if (machine_class->hw_version) { 2113 qemu_set_hw_version(machine_class->hw_version); 2114 } 2115 2116 /* 2117 * Get the default machine options from the machine if it is not already 2118 * specified either by the configuration file or by the command line. 2119 */ 2120 if (machine_class->default_machine_opts) { 2121 QDict *default_opts = 2122 keyval_parse(machine_class->default_machine_opts, NULL, NULL, 2123 &error_abort); 2124 qemu_apply_legacy_machine_options(default_opts); 2125 object_set_properties_from_keyval(OBJECT(current_machine), default_opts, 2126 false, &error_abort); 2127 qobject_unref(default_opts); 2128 } 2129 } 2130 2131 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) 2132 { 2133 GlobalProperty *g; 2134 2135 g = g_malloc0(sizeof(*g)); 2136 g->driver = qemu_opt_get(opts, "driver"); 2137 g->property = qemu_opt_get(opts, "property"); 2138 g->value = qemu_opt_get(opts, "value"); 2139 qdev_prop_register_global(g); 2140 return 0; 2141 } 2142 2143 /* 2144 * Return whether configuration group @group is stored in QemuOpts, or 2145 * recorded as one or more QDicts by qemu_record_config_group. 2146 */ 2147 static bool is_qemuopts_group(const char *group) 2148 { 2149 if (g_str_equal(group, "object") || 2150 g_str_equal(group, "audiodev") || 2151 g_str_equal(group, "machine") || 2152 g_str_equal(group, "smp-opts") || 2153 g_str_equal(group, "boot-opts")) { 2154 return false; 2155 } 2156 return true; 2157 } 2158 2159 static void qemu_record_config_group(const char *group, QDict *dict, 2160 bool from_json, Error **errp) 2161 { 2162 if (g_str_equal(group, "object")) { 2163 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2164 object_option_add_visitor(v); 2165 visit_free(v); 2166 2167 } else if (g_str_equal(group, "audiodev")) { 2168 Audiodev *dev = NULL; 2169 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2170 if (visit_type_Audiodev(v, NULL, &dev, errp)) { 2171 audio_define(dev); 2172 } 2173 visit_free(v); 2174 2175 } else if (g_str_equal(group, "machine")) { 2176 /* 2177 * Cannot merge string-valued and type-safe dictionaries, so JSON 2178 * is not accepted yet for -M. 2179 */ 2180 assert(!from_json); 2181 keyval_merge(machine_opts_dict, dict, errp); 2182 } else if (g_str_equal(group, "smp-opts")) { 2183 machine_merge_property("smp", dict, &error_fatal); 2184 } else if (g_str_equal(group, "boot-opts")) { 2185 machine_merge_property("boot", dict, &error_fatal); 2186 } else { 2187 abort(); 2188 } 2189 } 2190 2191 /* 2192 * Parse non-QemuOpts config file groups, pass the rest to 2193 * qemu_config_do_parse. 2194 */ 2195 static void qemu_parse_config_group(const char *group, QDict *qdict, 2196 void *opaque, Error **errp) 2197 { 2198 QObject *crumpled; 2199 if (is_qemuopts_group(group)) { 2200 qemu_config_do_parse(group, qdict, opaque, errp); 2201 return; 2202 } 2203 2204 crumpled = qdict_crumple(qdict, errp); 2205 if (!crumpled) { 2206 return; 2207 } 2208 switch (qobject_type(crumpled)) { 2209 case QTYPE_QDICT: 2210 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); 2211 break; 2212 case QTYPE_QLIST: 2213 error_setg(errp, "Lists cannot be at top level of a configuration section"); 2214 break; 2215 default: 2216 g_assert_not_reached(); 2217 } 2218 qobject_unref(crumpled); 2219 } 2220 2221 static void qemu_read_default_config_file(Error **errp) 2222 { 2223 ERRP_GUARD(); 2224 int ret; 2225 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); 2226 2227 ret = qemu_read_config_file(file, qemu_parse_config_group, errp); 2228 if (ret < 0) { 2229 if (ret == -ENOENT) { 2230 error_free(*errp); 2231 *errp = NULL; 2232 } 2233 } 2234 } 2235 2236 static void qemu_set_option(const char *str, Error **errp) 2237 { 2238 char group[64], id[64], arg[64]; 2239 QemuOptsList *list; 2240 QemuOpts *opts; 2241 int rc, offset; 2242 2243 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); 2244 if (rc < 3 || str[offset] != '=') { 2245 error_setg(errp, "can't parse: \"%s\"", str); 2246 return; 2247 } 2248 2249 if (!is_qemuopts_group(group)) { 2250 error_setg(errp, "-set is not supported with %s", group); 2251 } else { 2252 list = qemu_find_opts_err(group, errp); 2253 if (list) { 2254 opts = qemu_opts_find(list, id); 2255 if (!opts) { 2256 error_setg(errp, "there is no %s \"%s\" defined", group, id); 2257 return; 2258 } 2259 qemu_opt_set(opts, arg, str + offset + 1, errp); 2260 } 2261 } 2262 } 2263 2264 static void user_register_global_props(void) 2265 { 2266 qemu_opts_foreach(qemu_find_opts("global"), 2267 global_init_func, NULL, NULL); 2268 } 2269 2270 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) 2271 { 2272 return !icount_configure(opts, errp); 2273 } 2274 2275 static int accelerator_set_property(void *opaque, 2276 const char *name, const char *value, 2277 Error **errp) 2278 { 2279 return object_parse_property_opt(opaque, name, value, "accel", errp); 2280 } 2281 2282 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) 2283 { 2284 bool *p_init_failed = opaque; 2285 const char *acc = qemu_opt_get(opts, "accel"); 2286 AccelClass *ac = accel_find(acc); 2287 AccelState *accel; 2288 int ret; 2289 bool qtest_with_kvm; 2290 2291 if (!acc) { 2292 error_setg(errp, QERR_MISSING_PARAMETER, "accel"); 2293 goto bad; 2294 } 2295 2296 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; 2297 2298 if (!ac) { 2299 if (!qtest_with_kvm) { 2300 error_report("invalid accelerator %s", acc); 2301 } 2302 goto bad; 2303 } 2304 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); 2305 object_apply_compat_props(OBJECT(accel)); 2306 qemu_opt_foreach(opts, accelerator_set_property, 2307 accel, 2308 &error_fatal); 2309 2310 ret = accel_init_machine(accel, current_machine); 2311 if (ret < 0) { 2312 if (!qtest_with_kvm || ret != -ENOENT) { 2313 error_report("failed to initialize %s: %s", acc, strerror(-ret)); 2314 } 2315 goto bad; 2316 } 2317 2318 return 1; 2319 2320 bad: 2321 *p_init_failed = true; 2322 return 0; 2323 } 2324 2325 static void configure_accelerators(const char *progname) 2326 { 2327 bool init_failed = false; 2328 2329 qemu_opts_foreach(qemu_find_opts("icount"), 2330 do_configure_icount, NULL, &error_fatal); 2331 2332 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { 2333 char **accel_list, **tmp; 2334 2335 if (accelerators == NULL) { 2336 /* Select the default accelerator */ 2337 bool have_tcg = accel_find("tcg"); 2338 bool have_kvm = accel_find("kvm"); 2339 2340 if (have_tcg && have_kvm) { 2341 if (g_str_has_suffix(progname, "kvm")) { 2342 /* If the program name ends with "kvm", we prefer KVM */ 2343 accelerators = "kvm:tcg"; 2344 } else { 2345 accelerators = "tcg:kvm"; 2346 } 2347 } else if (have_kvm) { 2348 accelerators = "kvm"; 2349 } else if (have_tcg) { 2350 accelerators = "tcg"; 2351 } else { 2352 error_report("No accelerator selected and" 2353 " no default accelerator available"); 2354 exit(1); 2355 } 2356 } 2357 accel_list = g_strsplit(accelerators, ":", 0); 2358 2359 for (tmp = accel_list; *tmp; tmp++) { 2360 /* 2361 * Filter invalid accelerators here, to prevent obscenities 2362 * such as "-machine accel=tcg,,thread=single". 2363 */ 2364 if (accel_find(*tmp)) { 2365 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); 2366 } else { 2367 init_failed = true; 2368 error_report("invalid accelerator %s", *tmp); 2369 } 2370 } 2371 g_strfreev(accel_list); 2372 } else { 2373 if (accelerators != NULL) { 2374 error_report("The -accel and \"-machine accel=\" options are incompatible"); 2375 exit(1); 2376 } 2377 } 2378 2379 if (!qemu_opts_foreach(qemu_find_opts("accel"), 2380 do_configure_accelerator, &init_failed, &error_fatal)) { 2381 if (!init_failed) { 2382 error_report("no accelerator found"); 2383 } 2384 exit(1); 2385 } 2386 2387 if (init_failed && !qtest_chrdev) { 2388 error_report("falling back to %s", current_accel_name()); 2389 } 2390 2391 if (icount_enabled() && !tcg_enabled()) { 2392 error_report("-icount is not allowed with hardware virtualization"); 2393 exit(1); 2394 } 2395 } 2396 2397 static void qemu_validate_options(const QDict *machine_opts) 2398 { 2399 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); 2400 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); 2401 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); 2402 2403 if (kernel_filename == NULL) { 2404 if (kernel_cmdline != NULL) { 2405 error_report("-append only allowed with -kernel option"); 2406 exit(1); 2407 } 2408 2409 if (initrd_filename != NULL) { 2410 error_report("-initrd only allowed with -kernel option"); 2411 exit(1); 2412 } 2413 } 2414 2415 if (loadvm && incoming) { 2416 error_report("'incoming' and 'loadvm' options are mutually exclusive"); 2417 exit(EXIT_FAILURE); 2418 } 2419 if (loadvm && preconfig_requested) { 2420 error_report("'preconfig' and 'loadvm' options are " 2421 "mutually exclusive"); 2422 exit(EXIT_FAILURE); 2423 } 2424 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { 2425 error_report("'preconfig' supports '-incoming defer' only"); 2426 exit(EXIT_FAILURE); 2427 } 2428 2429 #ifdef CONFIG_CURSES 2430 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { 2431 error_report("curses display cannot be used with -daemonize"); 2432 exit(1); 2433 } 2434 #endif 2435 } 2436 2437 static void qemu_process_sugar_options(void) 2438 { 2439 if (mem_prealloc) { 2440 QObject *smp = qdict_get(machine_opts_dict, "smp"); 2441 if (smp && qobject_type(smp) == QTYPE_QDICT) { 2442 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); 2443 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { 2444 const char *val = qstring_get_str(qobject_to(QString, cpus)); 2445 object_register_sugar_prop("memory-backend", "prealloc-threads", 2446 val, false); 2447 } 2448 } 2449 object_register_sugar_prop("memory-backend", "prealloc", "on", false); 2450 } 2451 } 2452 2453 /* -action processing */ 2454 2455 /* 2456 * Process all the -action parameters parsed from cmdline. 2457 */ 2458 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) 2459 { 2460 Error *local_err = NULL; 2461 QDict *qdict = qemu_opts_to_qdict(opts, NULL); 2462 QObject *ret = NULL; 2463 qmp_marshal_set_action(qdict, &ret, &local_err); 2464 qobject_unref(ret); 2465 qobject_unref(qdict); 2466 if (local_err) { 2467 error_propagate(errp, local_err); 2468 return 1; 2469 } 2470 return 0; 2471 } 2472 2473 static void qemu_process_early_options(void) 2474 { 2475 qemu_opts_foreach(qemu_find_opts("name"), 2476 parse_name, NULL, &error_fatal); 2477 2478 object_option_foreach_add(object_create_pre_sandbox); 2479 2480 #ifdef CONFIG_SECCOMP 2481 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); 2482 if (olist) { 2483 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); 2484 } 2485 #endif 2486 2487 if (qemu_opts_foreach(qemu_find_opts("action"), 2488 process_runstate_actions, NULL, &error_fatal)) { 2489 exit(1); 2490 } 2491 2492 #ifndef _WIN32 2493 qemu_opts_foreach(qemu_find_opts("add-fd"), 2494 parse_add_fd, NULL, &error_fatal); 2495 2496 qemu_opts_foreach(qemu_find_opts("add-fd"), 2497 cleanup_add_fd, NULL, &error_fatal); 2498 #endif 2499 2500 /* Open the logfile at this point and set the log mask if necessary. */ 2501 { 2502 int mask = 0; 2503 if (log_mask) { 2504 mask = qemu_str_to_log_mask(log_mask); 2505 if (!mask) { 2506 qemu_print_log_usage(stdout); 2507 exit(1); 2508 } 2509 } 2510 qemu_set_log_filename_flags(log_file, mask, &error_fatal); 2511 } 2512 2513 qemu_add_default_firmwarepath(); 2514 } 2515 2516 static void qemu_process_help_options(void) 2517 { 2518 /* 2519 * Check for -cpu help and -device help before we call select_machine(), 2520 * which will return an error if the architecture has no default machine 2521 * type and the user did not specify one, so that the user doesn't need 2522 * to say '-cpu help -machine something'. 2523 */ 2524 if (cpu_option && is_help_option(cpu_option)) { 2525 list_cpus(); 2526 exit(0); 2527 } 2528 2529 if (qemu_opts_foreach(qemu_find_opts("device"), 2530 device_help_func, NULL, NULL)) { 2531 exit(0); 2532 } 2533 2534 /* -L help lists the data directories and exits. */ 2535 if (list_data_dirs) { 2536 qemu_list_data_dirs(); 2537 exit(0); 2538 } 2539 } 2540 2541 static void qemu_maybe_daemonize(const char *pid_file) 2542 { 2543 Error *err = NULL; 2544 2545 os_daemonize(); 2546 rcu_disable_atfork(); 2547 2548 if (pid_file) { 2549 char *pid_file_realpath = NULL; 2550 2551 if (!qemu_write_pidfile(pid_file, &err)) { 2552 error_reportf_err(err, "cannot create PID file: "); 2553 exit(1); 2554 } 2555 2556 pid_file_realpath = g_malloc0(PATH_MAX); 2557 if (!realpath(pid_file, pid_file_realpath)) { 2558 if (errno != ENOENT) { 2559 warn_report("not removing PID file on exit: cannot resolve PID " 2560 "file path: %s: %s", pid_file, strerror(errno)); 2561 } 2562 return; 2563 } 2564 2565 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { 2566 .notifier = { 2567 .notify = qemu_unlink_pidfile, 2568 }, 2569 .pid_file_realpath = pid_file_realpath, 2570 }; 2571 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); 2572 } 2573 } 2574 2575 static void qemu_init_displays(void) 2576 { 2577 DisplayState *ds; 2578 2579 /* init local displays */ 2580 ds = init_displaystate(); 2581 qemu_display_init(ds, &dpy); 2582 2583 /* must be after terminal init, SDL library changes signal handlers */ 2584 os_setup_signal_handling(); 2585 2586 /* init remote displays */ 2587 #ifdef CONFIG_VNC 2588 qemu_opts_foreach(qemu_find_opts("vnc"), 2589 vnc_init_func, NULL, &error_fatal); 2590 #endif 2591 2592 if (using_spice) { 2593 qemu_spice.display_init(); 2594 } 2595 } 2596 2597 static void qemu_init_board(void) 2598 { 2599 /* process plugin before CPUs are created, but once -smp has been parsed */ 2600 qemu_plugin_load_list(&plugin_list, &error_fatal); 2601 2602 /* From here on we enter MACHINE_PHASE_INITIALIZED. */ 2603 machine_run_board_init(current_machine, mem_path, &error_fatal); 2604 2605 drive_check_orphaned(); 2606 2607 realtime_init(); 2608 } 2609 2610 static void qemu_create_cli_devices(void) 2611 { 2612 DeviceOption *opt; 2613 2614 soundhw_init(); 2615 2616 qemu_opts_foreach(qemu_find_opts("fw_cfg"), 2617 parse_fw_cfg, fw_cfg_find(), &error_fatal); 2618 2619 /* init USB devices */ 2620 if (machine_usb(current_machine)) { 2621 if (foreach_device_config(DEV_USB, usb_parse) < 0) 2622 exit(1); 2623 } 2624 2625 /* init generic devices */ 2626 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); 2627 qemu_opts_foreach(qemu_find_opts("device"), 2628 device_init_func, NULL, &error_fatal); 2629 QTAILQ_FOREACH(opt, &device_opts, next) { 2630 DeviceState *dev; 2631 loc_push_restore(&opt->loc); 2632 /* 2633 * TODO Eventually we should call qmp_device_add() here to make sure it 2634 * behaves the same, but QMP still has to accept incorrectly typed 2635 * options until libvirt is fixed and we want to be strict on the CLI 2636 * from the start, so call qdev_device_add_from_qdict() directly for 2637 * now. 2638 */ 2639 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal); 2640 object_unref(OBJECT(dev)); 2641 loc_pop(&opt->loc); 2642 } 2643 rom_reset_order_override(); 2644 } 2645 2646 static void qemu_machine_creation_done(void) 2647 { 2648 MachineState *machine = MACHINE(qdev_get_machine()); 2649 2650 /* Did we create any drives that we failed to create a device for? */ 2651 drive_check_orphaned(); 2652 2653 /* Don't warn about the default network setup that you get if 2654 * no command line -net or -netdev options are specified. There 2655 * are two cases that we would otherwise complain about: 2656 * (1) board doesn't support a NIC but the implicit "-net nic" 2657 * requested one 2658 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" 2659 * sets up a nic that isn't connected to anything. 2660 */ 2661 if (!default_net && (!qtest_enabled() || has_defaults)) { 2662 net_check_clients(); 2663 } 2664 2665 qdev_prop_check_globals(); 2666 2667 qdev_machine_creation_done(); 2668 2669 if (machine->cgs) { 2670 /* 2671 * Verify that Confidential Guest Support has actually been initialized 2672 */ 2673 assert(machine->cgs->ready); 2674 } 2675 2676 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { 2677 exit(1); 2678 } 2679 if (!vga_interface_created && !default_vga && 2680 vga_interface_type != VGA_NONE) { 2681 warn_report("A -vga option was passed but this machine " 2682 "type does not use that option; " 2683 "No VGA device has been created"); 2684 } 2685 } 2686 2687 void qmp_x_exit_preconfig(Error **errp) 2688 { 2689 if (phase_check(PHASE_MACHINE_INITIALIZED)) { 2690 error_setg(errp, "The command is permitted only before machine initialization"); 2691 return; 2692 } 2693 2694 qemu_init_board(); 2695 qemu_create_cli_devices(); 2696 qemu_machine_creation_done(); 2697 2698 if (loadvm) { 2699 RunState state = autostart ? RUN_STATE_RUNNING : runstate_get(); 2700 load_snapshot(loadvm, NULL, false, NULL, &error_fatal); 2701 load_snapshot_resume(state); 2702 } 2703 if (replay_mode != REPLAY_MODE_NONE) { 2704 replay_vmstate_init(); 2705 } 2706 2707 if (incoming) { 2708 Error *local_err = NULL; 2709 if (strcmp(incoming, "defer") != 0) { 2710 qmp_migrate_incoming(incoming, false, NULL, &local_err); 2711 if (local_err) { 2712 error_reportf_err(local_err, "-incoming %s: ", incoming); 2713 exit(1); 2714 } 2715 } 2716 } else if (autostart) { 2717 qmp_cont(NULL); 2718 } 2719 } 2720 2721 void qemu_init(int argc, char **argv) 2722 { 2723 QemuOpts *opts; 2724 QemuOpts *icount_opts = NULL, *accel_opts = NULL; 2725 QemuOptsList *olist; 2726 int optind; 2727 const char *optarg; 2728 MachineClass *machine_class; 2729 bool userconfig = true; 2730 FILE *vmstate_dump_file = NULL; 2731 2732 qemu_add_opts(&qemu_drive_opts); 2733 qemu_add_drive_opts(&qemu_legacy_drive_opts); 2734 qemu_add_drive_opts(&qemu_common_drive_opts); 2735 qemu_add_drive_opts(&qemu_drive_opts); 2736 qemu_add_drive_opts(&bdrv_runtime_opts); 2737 qemu_add_opts(&qemu_chardev_opts); 2738 qemu_add_opts(&qemu_device_opts); 2739 qemu_add_opts(&qemu_netdev_opts); 2740 qemu_add_opts(&qemu_nic_opts); 2741 qemu_add_opts(&qemu_net_opts); 2742 qemu_add_opts(&qemu_rtc_opts); 2743 qemu_add_opts(&qemu_global_opts); 2744 qemu_add_opts(&qemu_mon_opts); 2745 qemu_add_opts(&qemu_trace_opts); 2746 qemu_plugin_add_opts(); 2747 qemu_add_opts(&qemu_option_rom_opts); 2748 qemu_add_opts(&qemu_accel_opts); 2749 qemu_add_opts(&qemu_mem_opts); 2750 qemu_add_opts(&qemu_smp_opts); 2751 qemu_add_opts(&qemu_boot_opts); 2752 qemu_add_opts(&qemu_add_fd_opts); 2753 qemu_add_opts(&qemu_object_opts); 2754 qemu_add_opts(&qemu_tpmdev_opts); 2755 qemu_add_opts(&qemu_overcommit_opts); 2756 qemu_add_opts(&qemu_msg_opts); 2757 qemu_add_opts(&qemu_name_opts); 2758 qemu_add_opts(&qemu_numa_opts); 2759 qemu_add_opts(&qemu_icount_opts); 2760 qemu_add_opts(&qemu_semihosting_config_opts); 2761 qemu_add_opts(&qemu_fw_cfg_opts); 2762 qemu_add_opts(&qemu_action_opts); 2763 qemu_add_run_with_opts(); 2764 module_call_init(MODULE_INIT_OPTS); 2765 2766 error_init(argv[0]); 2767 qemu_init_exec_dir(argv[0]); 2768 2769 qemu_init_arch_modules(); 2770 2771 qemu_init_subsystems(); 2772 2773 /* first pass of option parsing */ 2774 optind = 1; 2775 while (optind < argc) { 2776 if (argv[optind][0] != '-') { 2777 /* disk image */ 2778 optind++; 2779 } else { 2780 const QEMUOption *popt; 2781 2782 popt = lookup_opt(argc, argv, &optarg, &optind); 2783 switch (popt->index) { 2784 case QEMU_OPTION_nouserconfig: 2785 userconfig = false; 2786 break; 2787 } 2788 } 2789 } 2790 2791 machine_opts_dict = qdict_new(); 2792 if (userconfig) { 2793 qemu_read_default_config_file(&error_fatal); 2794 } 2795 2796 /* second pass of option parsing */ 2797 optind = 1; 2798 for(;;) { 2799 if (optind >= argc) 2800 break; 2801 if (argv[optind][0] != '-') { 2802 loc_set_cmdline(argv, optind, 1); 2803 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); 2804 } else { 2805 const QEMUOption *popt; 2806 2807 popt = lookup_opt(argc, argv, &optarg, &optind); 2808 if (!(popt->arch_mask & arch_type)) { 2809 error_report("Option not supported for this target"); 2810 exit(1); 2811 } 2812 switch(popt->index) { 2813 case QEMU_OPTION_cpu: 2814 /* hw initialization will check this */ 2815 cpu_option = optarg; 2816 break; 2817 case QEMU_OPTION_hda: 2818 case QEMU_OPTION_hdb: 2819 case QEMU_OPTION_hdc: 2820 case QEMU_OPTION_hdd: 2821 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, 2822 HD_OPTS); 2823 break; 2824 case QEMU_OPTION_blockdev: 2825 { 2826 Visitor *v; 2827 BlockdevOptionsQueueEntry *bdo; 2828 2829 v = qobject_input_visitor_new_str(optarg, "driver", 2830 &error_fatal); 2831 2832 bdo = g_new(BlockdevOptionsQueueEntry, 1); 2833 visit_type_BlockdevOptions(v, NULL, &bdo->bdo, 2834 &error_fatal); 2835 visit_free(v); 2836 loc_save(&bdo->loc); 2837 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); 2838 break; 2839 } 2840 case QEMU_OPTION_drive: 2841 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), 2842 optarg, false); 2843 if (opts == NULL) { 2844 exit(1); 2845 } 2846 break; 2847 case QEMU_OPTION_set: 2848 qemu_set_option(optarg, &error_fatal); 2849 break; 2850 case QEMU_OPTION_global: 2851 if (qemu_global_option(optarg) != 0) 2852 exit(1); 2853 break; 2854 case QEMU_OPTION_mtdblock: 2855 drive_add(IF_MTD, -1, optarg, MTD_OPTS); 2856 break; 2857 case QEMU_OPTION_sd: 2858 drive_add(IF_SD, -1, optarg, SD_OPTS); 2859 break; 2860 case QEMU_OPTION_pflash: 2861 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); 2862 break; 2863 case QEMU_OPTION_snapshot: 2864 snapshot = 1; 2865 replay_add_blocker("-snapshot"); 2866 break; 2867 case QEMU_OPTION_numa: 2868 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), 2869 optarg, true); 2870 if (!opts) { 2871 exit(1); 2872 } 2873 break; 2874 case QEMU_OPTION_display: 2875 parse_display(optarg); 2876 break; 2877 case QEMU_OPTION_nographic: 2878 qdict_put_str(machine_opts_dict, "graphics", "off"); 2879 nographic = true; 2880 dpy.type = DISPLAY_TYPE_NONE; 2881 break; 2882 case QEMU_OPTION_portrait: 2883 graphic_rotate = 90; 2884 break; 2885 case QEMU_OPTION_rotate: 2886 graphic_rotate = strtol(optarg, (char **) &optarg, 10); 2887 if (graphic_rotate != 0 && graphic_rotate != 90 && 2888 graphic_rotate != 180 && graphic_rotate != 270) { 2889 error_report("only 90, 180, 270 deg rotation is available"); 2890 exit(1); 2891 } 2892 break; 2893 case QEMU_OPTION_kernel: 2894 qdict_put_str(machine_opts_dict, "kernel", optarg); 2895 break; 2896 case QEMU_OPTION_initrd: 2897 qdict_put_str(machine_opts_dict, "initrd", optarg); 2898 break; 2899 case QEMU_OPTION_append: 2900 qdict_put_str(machine_opts_dict, "append", optarg); 2901 break; 2902 case QEMU_OPTION_dtb: 2903 qdict_put_str(machine_opts_dict, "dtb", optarg); 2904 break; 2905 case QEMU_OPTION_cdrom: 2906 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); 2907 break; 2908 case QEMU_OPTION_boot: 2909 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); 2910 break; 2911 case QEMU_OPTION_fda: 2912 case QEMU_OPTION_fdb: 2913 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, 2914 optarg, FD_OPTS); 2915 break; 2916 case QEMU_OPTION_no_fd_bootchk: 2917 fd_bootchk = 0; 2918 break; 2919 case QEMU_OPTION_netdev: 2920 default_net = 0; 2921 if (netdev_is_modern(optarg)) { 2922 netdev_parse_modern(optarg); 2923 } else { 2924 net_client_parse(qemu_find_opts("netdev"), optarg); 2925 } 2926 break; 2927 case QEMU_OPTION_nic: 2928 default_net = 0; 2929 net_client_parse(qemu_find_opts("nic"), optarg); 2930 break; 2931 case QEMU_OPTION_net: 2932 default_net = 0; 2933 net_client_parse(qemu_find_opts("net"), optarg); 2934 break; 2935 #ifdef CONFIG_LIBISCSI 2936 case QEMU_OPTION_iscsi: 2937 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), 2938 optarg, false); 2939 if (!opts) { 2940 exit(1); 2941 } 2942 break; 2943 #endif 2944 case QEMU_OPTION_audiodev: 2945 default_audio = 0; 2946 audio_parse_option(optarg); 2947 break; 2948 case QEMU_OPTION_audio: { 2949 bool help; 2950 char *model = NULL; 2951 Audiodev *dev = NULL; 2952 Visitor *v; 2953 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); 2954 default_audio = 0; 2955 if (help || (qdict_haskey(dict, "driver") && 2956 is_help_option(qdict_get_str(dict, "driver")))) { 2957 audio_help(); 2958 exit(EXIT_SUCCESS); 2959 } 2960 if (!qdict_haskey(dict, "id")) { 2961 qdict_put_str(dict, "id", "audiodev0"); 2962 } 2963 if (qdict_haskey(dict, "model")) { 2964 model = g_strdup(qdict_get_str(dict, "model")); 2965 qdict_del(dict, "model"); 2966 if (is_help_option(model)) { 2967 show_valid_soundhw(); 2968 exit(0); 2969 } 2970 } 2971 v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2972 qobject_unref(dict); 2973 visit_type_Audiodev(v, NULL, &dev, &error_fatal); 2974 visit_free(v); 2975 if (model) { 2976 audio_define(dev); 2977 select_soundhw(model, dev->id); 2978 g_free(model); 2979 } else { 2980 audio_define_default(dev, &error_fatal); 2981 } 2982 break; 2983 } 2984 case QEMU_OPTION_h: 2985 help(0); 2986 break; 2987 case QEMU_OPTION_version: 2988 version(); 2989 exit(0); 2990 break; 2991 case QEMU_OPTION_m: 2992 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); 2993 if (opts == NULL) { 2994 exit(1); 2995 } 2996 break; 2997 #ifdef CONFIG_TPM 2998 case QEMU_OPTION_tpmdev: 2999 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { 3000 exit(1); 3001 } 3002 break; 3003 #endif 3004 case QEMU_OPTION_mempath: 3005 mem_path = optarg; 3006 break; 3007 case QEMU_OPTION_mem_prealloc: 3008 mem_prealloc = 1; 3009 break; 3010 case QEMU_OPTION_d: 3011 log_mask = optarg; 3012 break; 3013 case QEMU_OPTION_D: 3014 log_file = optarg; 3015 break; 3016 case QEMU_OPTION_DFILTER: 3017 qemu_set_dfilter_ranges(optarg, &error_fatal); 3018 break; 3019 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) 3020 case QEMU_OPTION_perfmap: 3021 perf_enable_perfmap(); 3022 break; 3023 case QEMU_OPTION_jitdump: 3024 perf_enable_jitdump(); 3025 break; 3026 #endif 3027 case QEMU_OPTION_seed: 3028 qemu_guest_random_seed_main(optarg, &error_fatal); 3029 break; 3030 case QEMU_OPTION_s: 3031 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); 3032 break; 3033 case QEMU_OPTION_gdb: 3034 add_device_config(DEV_GDB, optarg); 3035 break; 3036 case QEMU_OPTION_L: 3037 if (is_help_option(optarg)) { 3038 list_data_dirs = true; 3039 } else { 3040 qemu_add_data_dir(g_strdup(optarg)); 3041 } 3042 break; 3043 case QEMU_OPTION_bios: 3044 qdict_put_str(machine_opts_dict, "firmware", optarg); 3045 break; 3046 case QEMU_OPTION_S: 3047 autostart = 0; 3048 break; 3049 case QEMU_OPTION_k: 3050 keyboard_layout = optarg; 3051 break; 3052 case QEMU_OPTION_vga: 3053 vga_model = optarg; 3054 default_vga = 0; 3055 break; 3056 case QEMU_OPTION_g: 3057 { 3058 const char *p; 3059 int w, h, depth; 3060 p = optarg; 3061 w = strtol(p, (char **)&p, 10); 3062 if (w <= 0) { 3063 graphic_error: 3064 error_report("invalid resolution or depth"); 3065 exit(1); 3066 } 3067 if (*p != 'x') 3068 goto graphic_error; 3069 p++; 3070 h = strtol(p, (char **)&p, 10); 3071 if (h <= 0) 3072 goto graphic_error; 3073 if (*p == 'x') { 3074 p++; 3075 depth = strtol(p, (char **)&p, 10); 3076 if (depth != 1 && depth != 2 && depth != 4 && 3077 depth != 8 && depth != 15 && depth != 16 && 3078 depth != 24 && depth != 32) 3079 goto graphic_error; 3080 } else if (*p == '\0') { 3081 depth = graphic_depth; 3082 } else { 3083 goto graphic_error; 3084 } 3085 3086 graphic_width = w; 3087 graphic_height = h; 3088 graphic_depth = depth; 3089 } 3090 break; 3091 case QEMU_OPTION_echr: 3092 { 3093 char *r; 3094 term_escape_char = strtol(optarg, &r, 0); 3095 if (r == optarg) 3096 printf("Bad argument to echr\n"); 3097 break; 3098 } 3099 case QEMU_OPTION_monitor: 3100 default_monitor = 0; 3101 if (strncmp(optarg, "none", 4)) { 3102 monitor_parse(optarg, "readline", false); 3103 } 3104 break; 3105 case QEMU_OPTION_qmp: 3106 monitor_parse(optarg, "control", false); 3107 default_monitor = 0; 3108 break; 3109 case QEMU_OPTION_qmp_pretty: 3110 monitor_parse(optarg, "control", true); 3111 default_monitor = 0; 3112 break; 3113 case QEMU_OPTION_mon: 3114 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, 3115 true); 3116 if (!opts) { 3117 exit(1); 3118 } 3119 default_monitor = 0; 3120 break; 3121 case QEMU_OPTION_chardev: 3122 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), 3123 optarg, true); 3124 if (!opts) { 3125 exit(1); 3126 } 3127 break; 3128 case QEMU_OPTION_fsdev: 3129 olist = qemu_find_opts("fsdev"); 3130 if (!olist) { 3131 error_report("fsdev support is disabled"); 3132 exit(1); 3133 } 3134 opts = qemu_opts_parse_noisily(olist, optarg, true); 3135 if (!opts) { 3136 exit(1); 3137 } 3138 break; 3139 case QEMU_OPTION_virtfs: { 3140 QemuOpts *fsdev; 3141 QemuOpts *device; 3142 const char *writeout, *sock_fd, *socket, *path, *security_model, 3143 *multidevs; 3144 3145 olist = qemu_find_opts("virtfs"); 3146 if (!olist) { 3147 error_report("virtfs support is disabled"); 3148 exit(1); 3149 } 3150 opts = qemu_opts_parse_noisily(olist, optarg, true); 3151 if (!opts) { 3152 exit(1); 3153 } 3154 3155 if (qemu_opt_get(opts, "fsdriver") == NULL || 3156 qemu_opt_get(opts, "mount_tag") == NULL) { 3157 error_report("Usage: -virtfs fsdriver,mount_tag=tag"); 3158 exit(1); 3159 } 3160 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), 3161 qemu_opts_id(opts) ?: 3162 qemu_opt_get(opts, "mount_tag"), 3163 1, NULL); 3164 if (!fsdev) { 3165 error_report("duplicate or invalid fsdev id: %s", 3166 qemu_opt_get(opts, "mount_tag")); 3167 exit(1); 3168 } 3169 3170 writeout = qemu_opt_get(opts, "writeout"); 3171 if (writeout) { 3172 #ifdef CONFIG_SYNC_FILE_RANGE 3173 qemu_opt_set(fsdev, "writeout", writeout, &error_abort); 3174 #else 3175 error_report("writeout=immediate not supported " 3176 "on this platform"); 3177 exit(1); 3178 #endif 3179 } 3180 qemu_opt_set(fsdev, "fsdriver", 3181 qemu_opt_get(opts, "fsdriver"), &error_abort); 3182 path = qemu_opt_get(opts, "path"); 3183 if (path) { 3184 qemu_opt_set(fsdev, "path", path, &error_abort); 3185 } 3186 security_model = qemu_opt_get(opts, "security_model"); 3187 if (security_model) { 3188 qemu_opt_set(fsdev, "security_model", security_model, 3189 &error_abort); 3190 } 3191 socket = qemu_opt_get(opts, "socket"); 3192 if (socket) { 3193 qemu_opt_set(fsdev, "socket", socket, &error_abort); 3194 } 3195 sock_fd = qemu_opt_get(opts, "sock_fd"); 3196 if (sock_fd) { 3197 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); 3198 } 3199 3200 qemu_opt_set_bool(fsdev, "readonly", 3201 qemu_opt_get_bool(opts, "readonly", 0), 3202 &error_abort); 3203 multidevs = qemu_opt_get(opts, "multidevs"); 3204 if (multidevs) { 3205 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); 3206 } 3207 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, 3208 &error_abort); 3209 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); 3210 qemu_opt_set(device, "fsdev", 3211 qemu_opts_id(fsdev), &error_abort); 3212 qemu_opt_set(device, "mount_tag", 3213 qemu_opt_get(opts, "mount_tag"), &error_abort); 3214 break; 3215 } 3216 case QEMU_OPTION_serial: 3217 add_device_config(DEV_SERIAL, optarg); 3218 default_serial = 0; 3219 if (strncmp(optarg, "mon:", 4) == 0) { 3220 default_monitor = 0; 3221 } 3222 break; 3223 case QEMU_OPTION_action: 3224 olist = qemu_find_opts("action"); 3225 if (!qemu_opts_parse_noisily(olist, optarg, false)) { 3226 exit(1); 3227 } 3228 break; 3229 case QEMU_OPTION_watchdog_action: { 3230 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); 3231 qemu_opt_set(opts, "watchdog", optarg, &error_abort); 3232 break; 3233 } 3234 case QEMU_OPTION_parallel: 3235 add_device_config(DEV_PARALLEL, optarg); 3236 default_parallel = 0; 3237 if (strncmp(optarg, "mon:", 4) == 0) { 3238 default_monitor = 0; 3239 } 3240 break; 3241 case QEMU_OPTION_debugcon: 3242 add_device_config(DEV_DEBUGCON, optarg); 3243 break; 3244 case QEMU_OPTION_loadvm: 3245 loadvm = optarg; 3246 break; 3247 case QEMU_OPTION_full_screen: 3248 dpy.has_full_screen = true; 3249 dpy.full_screen = true; 3250 break; 3251 case QEMU_OPTION_pidfile: 3252 pid_file = optarg; 3253 break; 3254 case QEMU_OPTION_win2k_hack: 3255 win2k_install_hack = 1; 3256 break; 3257 case QEMU_OPTION_acpitable: 3258 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), 3259 optarg, true); 3260 if (!opts) { 3261 exit(1); 3262 } 3263 acpi_table_add(opts, &error_fatal); 3264 break; 3265 case QEMU_OPTION_smbios: 3266 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), 3267 optarg, false); 3268 if (!opts) { 3269 exit(1); 3270 } 3271 smbios_entry_add(opts, &error_fatal); 3272 break; 3273 case QEMU_OPTION_fwcfg: 3274 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), 3275 optarg, true); 3276 if (opts == NULL) { 3277 exit(1); 3278 } 3279 break; 3280 case QEMU_OPTION_preconfig: 3281 preconfig_requested = true; 3282 break; 3283 case QEMU_OPTION_enable_kvm: 3284 qdict_put_str(machine_opts_dict, "accel", "kvm"); 3285 break; 3286 case QEMU_OPTION_M: 3287 case QEMU_OPTION_machine: 3288 { 3289 bool help; 3290 3291 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); 3292 if (help) { 3293 machine_help_func(machine_opts_dict); 3294 exit(EXIT_SUCCESS); 3295 } 3296 break; 3297 } 3298 case QEMU_OPTION_accel: 3299 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), 3300 optarg, true); 3301 optarg = qemu_opt_get(accel_opts, "accel"); 3302 if (!optarg || is_help_option(optarg)) { 3303 printf("Accelerators supported in QEMU binary:\n"); 3304 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, 3305 false); 3306 for (el = accel_list; el; el = el->next) { 3307 gchar *typename = g_strdup(object_class_get_name( 3308 OBJECT_CLASS(el->data))); 3309 /* omit qtest which is used for tests only */ 3310 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && 3311 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { 3312 gchar **optname = g_strsplit(typename, 3313 ACCEL_CLASS_SUFFIX, 0); 3314 printf("%s\n", optname[0]); 3315 g_strfreev(optname); 3316 } 3317 g_free(typename); 3318 } 3319 g_slist_free(accel_list); 3320 exit(0); 3321 } 3322 break; 3323 case QEMU_OPTION_usb: 3324 qdict_put_str(machine_opts_dict, "usb", "on"); 3325 break; 3326 case QEMU_OPTION_usbdevice: 3327 qdict_put_str(machine_opts_dict, "usb", "on"); 3328 add_device_config(DEV_USB, optarg); 3329 break; 3330 case QEMU_OPTION_device: 3331 if (optarg[0] == '{') { 3332 QObject *obj = qobject_from_json(optarg, &error_fatal); 3333 DeviceOption *opt = g_new0(DeviceOption, 1); 3334 opt->opts = qobject_to(QDict, obj); 3335 loc_save(&opt->loc); 3336 assert(opt->opts != NULL); 3337 QTAILQ_INSERT_TAIL(&device_opts, opt, next); 3338 } else { 3339 if (!qemu_opts_parse_noisily(qemu_find_opts("device"), 3340 optarg, true)) { 3341 exit(1); 3342 } 3343 } 3344 break; 3345 case QEMU_OPTION_smp: 3346 machine_parse_property_opt(qemu_find_opts("smp-opts"), 3347 "smp", optarg); 3348 break; 3349 #ifdef CONFIG_VNC 3350 case QEMU_OPTION_vnc: 3351 vnc_parse(optarg); 3352 display_remote++; 3353 break; 3354 #endif 3355 case QEMU_OPTION_no_reboot: 3356 olist = qemu_find_opts("action"); 3357 qemu_opts_parse_noisily(olist, "reboot=shutdown", false); 3358 break; 3359 case QEMU_OPTION_no_shutdown: 3360 olist = qemu_find_opts("action"); 3361 qemu_opts_parse_noisily(olist, "shutdown=pause", false); 3362 break; 3363 case QEMU_OPTION_uuid: 3364 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { 3365 error_report("failed to parse UUID string: wrong format"); 3366 exit(1); 3367 } 3368 qemu_uuid_set = true; 3369 break; 3370 case QEMU_OPTION_option_rom: 3371 if (nb_option_roms >= MAX_OPTION_ROMS) { 3372 error_report("too many option ROMs"); 3373 exit(1); 3374 } 3375 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), 3376 optarg, true); 3377 if (!opts) { 3378 exit(1); 3379 } 3380 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); 3381 option_rom[nb_option_roms].bootindex = 3382 qemu_opt_get_number(opts, "bootindex", -1); 3383 if (!option_rom[nb_option_roms].name) { 3384 error_report("Option ROM file is not specified"); 3385 exit(1); 3386 } 3387 nb_option_roms++; 3388 break; 3389 case QEMU_OPTION_semihosting: 3390 qemu_semihosting_enable(); 3391 break; 3392 case QEMU_OPTION_semihosting_config: 3393 if (qemu_semihosting_config_options(optarg) != 0) { 3394 exit(1); 3395 } 3396 break; 3397 case QEMU_OPTION_name: 3398 opts = qemu_opts_parse_noisily(qemu_find_opts("name"), 3399 optarg, true); 3400 if (!opts) { 3401 exit(1); 3402 } 3403 /* Capture guest name if -msg guest-name is used later */ 3404 error_guest_name = qemu_opt_get(opts, "guest"); 3405 break; 3406 case QEMU_OPTION_prom_env: 3407 if (nb_prom_envs >= MAX_PROM_ENVS) { 3408 error_report("too many prom variables"); 3409 exit(1); 3410 } 3411 prom_envs[nb_prom_envs] = optarg; 3412 nb_prom_envs++; 3413 break; 3414 case QEMU_OPTION_old_param: 3415 old_param = 1; 3416 break; 3417 case QEMU_OPTION_rtc: 3418 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, 3419 false); 3420 if (!opts) { 3421 exit(1); 3422 } 3423 break; 3424 case QEMU_OPTION_icount: 3425 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), 3426 optarg, true); 3427 if (!icount_opts) { 3428 exit(1); 3429 } 3430 break; 3431 case QEMU_OPTION_incoming: 3432 if (!incoming) { 3433 runstate_set(RUN_STATE_INMIGRATE); 3434 } 3435 incoming = optarg; 3436 break; 3437 case QEMU_OPTION_only_migratable: 3438 only_migratable = 1; 3439 break; 3440 case QEMU_OPTION_nodefaults: 3441 has_defaults = 0; 3442 break; 3443 case QEMU_OPTION_xen_domid: 3444 if (!(accel_find("xen")) && !(accel_find("kvm"))) { 3445 error_report("Option not supported for this target"); 3446 exit(1); 3447 } 3448 xen_domid = atoi(optarg); 3449 break; 3450 case QEMU_OPTION_xen_attach: 3451 if (!(accel_find("xen"))) { 3452 error_report("Option not supported for this target"); 3453 exit(1); 3454 } 3455 xen_mode = XEN_ATTACH; 3456 break; 3457 case QEMU_OPTION_xen_domid_restrict: 3458 if (!(accel_find("xen"))) { 3459 error_report("Option not supported for this target"); 3460 exit(1); 3461 } 3462 xen_domid_restrict = true; 3463 break; 3464 case QEMU_OPTION_trace: 3465 trace_opt_parse(optarg); 3466 break; 3467 case QEMU_OPTION_plugin: 3468 qemu_plugin_opt_parse(optarg, &plugin_list); 3469 break; 3470 case QEMU_OPTION_readconfig: 3471 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); 3472 break; 3473 #ifdef CONFIG_SPICE 3474 case QEMU_OPTION_spice: 3475 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false); 3476 if (!opts) { 3477 exit(1); 3478 } 3479 display_remote++; 3480 break; 3481 #endif 3482 case QEMU_OPTION_qtest: 3483 qtest_chrdev = optarg; 3484 break; 3485 case QEMU_OPTION_qtest_log: 3486 qtest_log = optarg; 3487 break; 3488 case QEMU_OPTION_sandbox: 3489 olist = qemu_find_opts("sandbox"); 3490 if (!olist) { 3491 #ifndef CONFIG_SECCOMP 3492 error_report("-sandbox support is not enabled " 3493 "in this QEMU binary"); 3494 #endif 3495 exit(1); 3496 } 3497 3498 opts = qemu_opts_parse_noisily(olist, optarg, true); 3499 if (!opts) { 3500 exit(1); 3501 } 3502 break; 3503 case QEMU_OPTION_add_fd: 3504 #ifndef _WIN32 3505 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), 3506 optarg, false); 3507 if (!opts) { 3508 exit(1); 3509 } 3510 #else 3511 error_report("File descriptor passing is disabled on this " 3512 "platform"); 3513 exit(1); 3514 #endif 3515 break; 3516 case QEMU_OPTION_object: 3517 object_option_parse(optarg); 3518 break; 3519 case QEMU_OPTION_overcommit: 3520 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), 3521 optarg, false); 3522 if (!opts) { 3523 exit(1); 3524 } 3525 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false); 3526 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false); 3527 break; 3528 case QEMU_OPTION_compat: 3529 { 3530 CompatPolicy *opts_policy; 3531 Visitor *v; 3532 3533 v = qobject_input_visitor_new_str(optarg, NULL, 3534 &error_fatal); 3535 3536 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); 3537 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); 3538 3539 qapi_free_CompatPolicy(opts_policy); 3540 visit_free(v); 3541 break; 3542 } 3543 case QEMU_OPTION_msg: 3544 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, 3545 false); 3546 if (!opts) { 3547 exit(1); 3548 } 3549 configure_msg(opts); 3550 break; 3551 case QEMU_OPTION_dump_vmstate: 3552 if (vmstate_dump_file) { 3553 error_report("only one '-dump-vmstate' " 3554 "option may be given"); 3555 exit(1); 3556 } 3557 vmstate_dump_file = fopen(optarg, "w"); 3558 if (vmstate_dump_file == NULL) { 3559 error_report("open %s: %s", optarg, strerror(errno)); 3560 exit(1); 3561 } 3562 break; 3563 case QEMU_OPTION_enable_sync_profile: 3564 qsp_enable(); 3565 break; 3566 case QEMU_OPTION_nouserconfig: 3567 /* Nothing to be parsed here. Especially, do not error out below. */ 3568 break; 3569 #if defined(CONFIG_POSIX) 3570 case QEMU_OPTION_runas: 3571 if (!os_set_runas(optarg)) { 3572 error_report("User \"%s\" doesn't exist" 3573 " (and is not <uid>:<gid>)", 3574 optarg); 3575 exit(1); 3576 } 3577 break; 3578 case QEMU_OPTION_daemonize: 3579 os_set_daemonize(true); 3580 break; 3581 case QEMU_OPTION_run_with: { 3582 const char *str; 3583 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), 3584 optarg, false); 3585 if (!opts) { 3586 exit(1); 3587 } 3588 #if defined(CONFIG_LINUX) 3589 if (qemu_opt_get_bool(opts, "async-teardown", false)) { 3590 init_async_teardown(); 3591 } 3592 #endif 3593 str = qemu_opt_get(opts, "chroot"); 3594 if (str) { 3595 os_set_chroot(str); 3596 } 3597 break; 3598 } 3599 #endif /* CONFIG_POSIX */ 3600 3601 default: 3602 error_report("Option not supported in this build"); 3603 exit(1); 3604 } 3605 } 3606 } 3607 /* 3608 * Clear error location left behind by the loop. 3609 * Best done right after the loop. Do not insert code here! 3610 */ 3611 loc_set_none(); 3612 3613 qemu_validate_options(machine_opts_dict); 3614 qemu_process_sugar_options(); 3615 3616 /* 3617 * These options affect everything else and should be processed 3618 * before daemonizing. 3619 */ 3620 qemu_process_early_options(); 3621 3622 qemu_process_help_options(); 3623 qemu_maybe_daemonize(pid_file); 3624 3625 /* 3626 * The trace backend must be initialized after daemonizing. 3627 * trace_init_backends() will call st_init(), which will create the 3628 * trace thread in the parent, and also register st_flush_trace_buffer() 3629 * in atexit(). This function will force the parent to wait for the 3630 * writeout thread to finish, which will not occur, and the parent 3631 * process will be left in the host. 3632 */ 3633 if (!trace_init_backends()) { 3634 exit(1); 3635 } 3636 trace_init_file(); 3637 3638 qemu_init_main_loop(&error_fatal); 3639 cpu_timers_init(); 3640 3641 user_register_global_props(); 3642 replay_configure(icount_opts); 3643 3644 configure_rtc(qemu_find_opts_singleton("rtc")); 3645 3646 /* Transfer QemuOpts options into machine options */ 3647 parse_memory_options(); 3648 3649 qemu_create_machine(machine_opts_dict); 3650 3651 suspend_mux_open(); 3652 3653 qemu_disable_default_devices(); 3654 qemu_setup_display(); 3655 qemu_create_default_devices(); 3656 qemu_create_early_backends(); 3657 3658 qemu_apply_legacy_machine_options(machine_opts_dict); 3659 qemu_apply_machine_options(machine_opts_dict); 3660 qobject_unref(machine_opts_dict); 3661 phase_advance(PHASE_MACHINE_CREATED); 3662 3663 /* 3664 * Note: uses machine properties such as kernel-irqchip, must run 3665 * after qemu_apply_machine_options. 3666 */ 3667 configure_accelerators(argv[0]); 3668 phase_advance(PHASE_ACCEL_CREATED); 3669 3670 /* 3671 * Beware, QOM objects created before this point miss global and 3672 * compat properties. 3673 * 3674 * Global properties get set up by qdev_prop_register_global(), 3675 * called from user_register_global_props(), and certain option 3676 * desugaring. Also in CPU feature desugaring (buried in 3677 * parse_cpu_option()), which happens below this point, but may 3678 * only target the CPU type, which can only be created after 3679 * parse_cpu_option() returned the type. 3680 * 3681 * Machine compat properties: object_set_machine_compat_props(). 3682 * Accelerator compat props: object_set_accelerator_compat_props(), 3683 * called from do_configure_accelerator(). 3684 */ 3685 3686 machine_class = MACHINE_GET_CLASS(current_machine); 3687 if (!qtest_enabled() && machine_class->deprecation_reason) { 3688 warn_report("Machine type '%s' is deprecated: %s", 3689 machine_class->name, machine_class->deprecation_reason); 3690 } 3691 3692 /* 3693 * Create backends before creating migration objects, so that it can 3694 * check against compatibilities on the backend memories (e.g. postcopy 3695 * over memory-backend-file objects). 3696 */ 3697 qemu_create_late_backends(); 3698 3699 /* 3700 * Note: creates a QOM object, must run only after global and 3701 * compat properties have been set up. 3702 */ 3703 migration_object_init(); 3704 3705 /* parse features once if machine provides default cpu_type */ 3706 current_machine->cpu_type = machine_class_default_cpu_type(machine_class); 3707 if (cpu_option) { 3708 current_machine->cpu_type = parse_cpu_option(cpu_option); 3709 } 3710 /* NB: for machine none cpu_type could STILL be NULL here! */ 3711 3712 qemu_resolve_machine_memdev(); 3713 parse_numa_opts(current_machine); 3714 3715 if (vmstate_dump_file) { 3716 /* dump and exit */ 3717 module_load_qom_all(); 3718 dump_vmstate_json_to_file(vmstate_dump_file); 3719 exit(0); 3720 } 3721 3722 if (!preconfig_requested) { 3723 qmp_x_exit_preconfig(&error_fatal); 3724 } 3725 qemu_init_displays(); 3726 accel_setup_post(current_machine); 3727 os_setup_post(); 3728 resume_mux_open(); 3729 } 3730