1 /* 2 * QEMU System Emulator 3 * 4 * Copyright (c) 2003-2008 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #include "qemu/osdep.h" 26 #include "qemu/help-texts.h" 27 #include "qemu/datadir.h" 28 #include "qemu/units.h" 29 #include "exec/cpu-common.h" 30 #include "exec/page-vary.h" 31 #include "hw/qdev-properties.h" 32 #include "qapi/compat-policy.h" 33 #include "qapi/error.h" 34 #include "qapi/qmp/qdict.h" 35 #include "qapi/qmp/qstring.h" 36 #include "qapi/qmp/qjson.h" 37 #include "qemu-version.h" 38 #include "qemu/cutils.h" 39 #include "qemu/help_option.h" 40 #include "qemu/hw-version.h" 41 #include "qemu/uuid.h" 42 #include "sysemu/reset.h" 43 #include "sysemu/runstate.h" 44 #include "sysemu/runstate-action.h" 45 #include "sysemu/seccomp.h" 46 #include "sysemu/tcg.h" 47 #include "sysemu/xen.h" 48 49 #include "qemu/error-report.h" 50 #include "qemu/sockets.h" 51 #include "qemu/accel.h" 52 #include "qemu/async-teardown.h" 53 #include "hw/usb.h" 54 #include "hw/isa/isa.h" 55 #include "hw/scsi/scsi.h" 56 #include "hw/display/vga.h" 57 #include "hw/firmware/smbios.h" 58 #include "hw/acpi/acpi.h" 59 #include "hw/xen/xen.h" 60 #include "hw/loader.h" 61 #include "monitor/qdev.h" 62 #include "net/net.h" 63 #include "net/slirp.h" 64 #include "monitor/monitor.h" 65 #include "ui/console.h" 66 #include "ui/input.h" 67 #include "sysemu/sysemu.h" 68 #include "sysemu/numa.h" 69 #include "sysemu/hostmem.h" 70 #include "exec/gdbstub.h" 71 #include "qemu/timer.h" 72 #include "chardev/char.h" 73 #include "qemu/bitmap.h" 74 #include "qemu/log.h" 75 #include "sysemu/blockdev.h" 76 #include "hw/block/block.h" 77 #include "hw/i386/x86.h" 78 #include "hw/i386/pc.h" 79 #include "migration/misc.h" 80 #include "migration/snapshot.h" 81 #include "sysemu/tpm.h" 82 #include "sysemu/dma.h" 83 #include "hw/audio/soundhw.h" 84 #include "audio/audio.h" 85 #include "sysemu/cpus.h" 86 #include "sysemu/cpu-timers.h" 87 #include "migration/colo.h" 88 #include "migration/postcopy-ram.h" 89 #include "sysemu/kvm.h" 90 #include "qapi/qobject-input-visitor.h" 91 #include "qemu/option.h" 92 #include "qemu/config-file.h" 93 #include "qemu/main-loop.h" 94 #ifdef CONFIG_VIRTFS 95 #include "fsdev/qemu-fsdev.h" 96 #endif 97 #include "sysemu/qtest.h" 98 #ifdef CONFIG_TCG 99 #include "accel/tcg/perf.h" 100 #endif 101 102 #include "disas/disas.h" 103 104 #include "trace.h" 105 #include "trace/control.h" 106 #include "qemu/plugin.h" 107 #include "qemu/queue.h" 108 #include "sysemu/arch_init.h" 109 #include "exec/confidential-guest-support.h" 110 111 #include "ui/qemu-spice.h" 112 #include "qapi/string-input-visitor.h" 113 #include "qapi/opts-visitor.h" 114 #include "qapi/clone-visitor.h" 115 #include "qom/object_interfaces.h" 116 #include "semihosting/semihost.h" 117 #include "crypto/init.h" 118 #include "sysemu/replay.h" 119 #include "qapi/qapi-events-run-state.h" 120 #include "qapi/qapi-types-audio.h" 121 #include "qapi/qapi-visit-audio.h" 122 #include "qapi/qapi-visit-block-core.h" 123 #include "qapi/qapi-visit-compat.h" 124 #include "qapi/qapi-visit-machine.h" 125 #include "qapi/qapi-visit-ui.h" 126 #include "qapi/qapi-commands-block-core.h" 127 #include "qapi/qapi-commands-migration.h" 128 #include "qapi/qapi-commands-misc.h" 129 #include "qapi/qapi-visit-qom.h" 130 #include "qapi/qapi-commands-ui.h" 131 #include "block/qdict.h" 132 #include "qapi/qmp/qerror.h" 133 #include "sysemu/iothread.h" 134 #include "qemu/guest-random.h" 135 #include "qemu/keyval.h" 136 137 #define MAX_VIRTIO_CONSOLES 1 138 139 typedef struct BlockdevOptionsQueueEntry { 140 BlockdevOptions *bdo; 141 Location loc; 142 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry; 143 } BlockdevOptionsQueueEntry; 144 145 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue; 146 147 typedef struct ObjectOption { 148 ObjectOptions *opts; 149 QTAILQ_ENTRY(ObjectOption) next; 150 } ObjectOption; 151 152 typedef struct DeviceOption { 153 QDict *opts; 154 Location loc; 155 QTAILQ_ENTRY(DeviceOption) next; 156 } DeviceOption; 157 158 static const char *cpu_option; 159 static const char *mem_path; 160 static const char *incoming; 161 static const char *loadvm; 162 static const char *accelerators; 163 static bool have_custom_ram_size; 164 static const char *ram_memdev_id; 165 static QDict *machine_opts_dict; 166 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts); 167 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts); 168 static int display_remote; 169 static int snapshot; 170 static bool preconfig_requested; 171 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list); 172 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue); 173 static bool nographic = false; 174 static int mem_prealloc; /* force preallocation of physical target memory */ 175 static const char *vga_model = NULL; 176 static DisplayOptions dpy; 177 static int num_serial_hds; 178 static Chardev **serial_hds; 179 static const char *log_mask; 180 static const char *log_file; 181 static bool list_data_dirs; 182 static const char *qtest_chrdev; 183 static const char *qtest_log; 184 static bool opt_one_insn_per_tb; 185 186 static int has_defaults = 1; 187 static int default_audio = 1; 188 static int default_serial = 1; 189 static int default_parallel = 1; 190 static int default_monitor = 1; 191 static int default_floppy = 1; 192 static int default_cdrom = 1; 193 static int default_sdcard = 1; 194 static int default_vga = 1; 195 static int default_net = 1; 196 197 static struct { 198 const char *driver; 199 int *flag; 200 } default_list[] = { 201 { .driver = "isa-serial", .flag = &default_serial }, 202 { .driver = "isa-parallel", .flag = &default_parallel }, 203 { .driver = "isa-fdc", .flag = &default_floppy }, 204 { .driver = "floppy", .flag = &default_floppy }, 205 { .driver = "ide-cd", .flag = &default_cdrom }, 206 { .driver = "ide-hd", .flag = &default_cdrom }, 207 { .driver = "scsi-cd", .flag = &default_cdrom }, 208 { .driver = "scsi-hd", .flag = &default_cdrom }, 209 { .driver = "VGA", .flag = &default_vga }, 210 { .driver = "isa-vga", .flag = &default_vga }, 211 { .driver = "cirrus-vga", .flag = &default_vga }, 212 { .driver = "isa-cirrus-vga", .flag = &default_vga }, 213 { .driver = "vmware-svga", .flag = &default_vga }, 214 { .driver = "qxl-vga", .flag = &default_vga }, 215 { .driver = "virtio-vga", .flag = &default_vga }, 216 { .driver = "ati-vga", .flag = &default_vga }, 217 { .driver = "vhost-user-vga", .flag = &default_vga }, 218 { .driver = "virtio-vga-gl", .flag = &default_vga }, 219 { .driver = "virtio-vga-rutabaga", .flag = &default_vga }, 220 }; 221 222 static QemuOptsList qemu_rtc_opts = { 223 .name = "rtc", 224 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head), 225 .merge_lists = true, 226 .desc = { 227 { 228 .name = "base", 229 .type = QEMU_OPT_STRING, 230 },{ 231 .name = "clock", 232 .type = QEMU_OPT_STRING, 233 },{ 234 .name = "driftfix", 235 .type = QEMU_OPT_STRING, 236 }, 237 { /* end of list */ } 238 }, 239 }; 240 241 static QemuOptsList qemu_option_rom_opts = { 242 .name = "option-rom", 243 .implied_opt_name = "romfile", 244 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head), 245 .desc = { 246 { 247 .name = "bootindex", 248 .type = QEMU_OPT_NUMBER, 249 }, { 250 .name = "romfile", 251 .type = QEMU_OPT_STRING, 252 }, 253 { /* end of list */ } 254 }, 255 }; 256 257 static QemuOptsList qemu_accel_opts = { 258 .name = "accel", 259 .implied_opt_name = "accel", 260 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head), 261 .desc = { 262 /* 263 * no elements => accept any 264 * sanity checking will happen later 265 * when setting accelerator properties 266 */ 267 { } 268 }, 269 }; 270 271 static QemuOptsList qemu_boot_opts = { 272 .name = "boot-opts", 273 .implied_opt_name = "order", 274 .merge_lists = true, 275 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head), 276 .desc = { 277 { 278 .name = "order", 279 .type = QEMU_OPT_STRING, 280 }, { 281 .name = "once", 282 .type = QEMU_OPT_STRING, 283 }, { 284 .name = "menu", 285 .type = QEMU_OPT_BOOL, 286 }, { 287 .name = "splash", 288 .type = QEMU_OPT_STRING, 289 }, { 290 .name = "splash-time", 291 .type = QEMU_OPT_NUMBER, 292 }, { 293 .name = "reboot-timeout", 294 .type = QEMU_OPT_NUMBER, 295 }, { 296 .name = "strict", 297 .type = QEMU_OPT_BOOL, 298 }, 299 { /*End of list */ } 300 }, 301 }; 302 303 static QemuOptsList qemu_add_fd_opts = { 304 .name = "add-fd", 305 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head), 306 .desc = { 307 { 308 .name = "fd", 309 .type = QEMU_OPT_NUMBER, 310 .help = "file descriptor of which a duplicate is added to fd set", 311 },{ 312 .name = "set", 313 .type = QEMU_OPT_NUMBER, 314 .help = "ID of the fd set to add fd to", 315 },{ 316 .name = "opaque", 317 .type = QEMU_OPT_STRING, 318 .help = "free-form string used to describe fd", 319 }, 320 { /* end of list */ } 321 }, 322 }; 323 324 static QemuOptsList qemu_object_opts = { 325 .name = "object", 326 .implied_opt_name = "qom-type", 327 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head), 328 .desc = { 329 { } 330 }, 331 }; 332 333 static QemuOptsList qemu_tpmdev_opts = { 334 .name = "tpmdev", 335 .implied_opt_name = "type", 336 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head), 337 .desc = { 338 /* options are defined in the TPM backends */ 339 { /* end of list */ } 340 }, 341 }; 342 343 static QemuOptsList qemu_overcommit_opts = { 344 .name = "overcommit", 345 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head), 346 .desc = { 347 { 348 .name = "mem-lock", 349 .type = QEMU_OPT_BOOL, 350 }, 351 { 352 .name = "cpu-pm", 353 .type = QEMU_OPT_BOOL, 354 }, 355 { /* end of list */ } 356 }, 357 }; 358 359 static QemuOptsList qemu_msg_opts = { 360 .name = "msg", 361 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head), 362 .desc = { 363 { 364 .name = "timestamp", 365 .type = QEMU_OPT_BOOL, 366 }, 367 { 368 .name = "guest-name", 369 .type = QEMU_OPT_BOOL, 370 .help = "Prepends guest name for error messages but only if " 371 "-name guest is set otherwise option is ignored\n", 372 }, 373 { /* end of list */ } 374 }, 375 }; 376 377 static QemuOptsList qemu_name_opts = { 378 .name = "name", 379 .implied_opt_name = "guest", 380 .merge_lists = true, 381 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head), 382 .desc = { 383 { 384 .name = "guest", 385 .type = QEMU_OPT_STRING, 386 .help = "Sets the name of the guest.\n" 387 "This name will be displayed in the SDL window caption.\n" 388 "The name will also be used for the VNC server", 389 }, { 390 .name = "process", 391 .type = QEMU_OPT_STRING, 392 .help = "Sets the name of the QEMU process, as shown in top etc", 393 }, { 394 .name = "debug-threads", 395 .type = QEMU_OPT_BOOL, 396 .help = "When enabled, name the individual threads; defaults off.\n" 397 "NOTE: The thread names are for debugging and not a\n" 398 "stable API.", 399 }, 400 { /* End of list */ } 401 }, 402 }; 403 404 static QemuOptsList qemu_mem_opts = { 405 .name = "memory", 406 .implied_opt_name = "size", 407 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head), 408 .merge_lists = true, 409 .desc = { 410 { 411 .name = "size", 412 .type = QEMU_OPT_SIZE, 413 }, 414 { 415 .name = "slots", 416 .type = QEMU_OPT_NUMBER, 417 }, 418 { 419 .name = "maxmem", 420 .type = QEMU_OPT_SIZE, 421 }, 422 { /* end of list */ } 423 }, 424 }; 425 426 static QemuOptsList qemu_icount_opts = { 427 .name = "icount", 428 .implied_opt_name = "shift", 429 .merge_lists = true, 430 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head), 431 .desc = { 432 { 433 .name = "shift", 434 .type = QEMU_OPT_STRING, 435 }, { 436 .name = "align", 437 .type = QEMU_OPT_BOOL, 438 }, { 439 .name = "sleep", 440 .type = QEMU_OPT_BOOL, 441 }, { 442 .name = "rr", 443 .type = QEMU_OPT_STRING, 444 }, { 445 .name = "rrfile", 446 .type = QEMU_OPT_STRING, 447 }, { 448 .name = "rrsnapshot", 449 .type = QEMU_OPT_STRING, 450 }, 451 { /* end of list */ } 452 }, 453 }; 454 455 static QemuOptsList qemu_fw_cfg_opts = { 456 .name = "fw_cfg", 457 .implied_opt_name = "name", 458 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head), 459 .desc = { 460 { 461 .name = "name", 462 .type = QEMU_OPT_STRING, 463 .help = "Sets the fw_cfg name of the blob to be inserted", 464 }, { 465 .name = "file", 466 .type = QEMU_OPT_STRING, 467 .help = "Sets the name of the file from which " 468 "the fw_cfg blob will be loaded", 469 }, { 470 .name = "string", 471 .type = QEMU_OPT_STRING, 472 .help = "Sets content of the blob to be inserted from a string", 473 }, { 474 .name = "gen_id", 475 .type = QEMU_OPT_STRING, 476 .help = "Sets id of the object generating the fw_cfg blob " 477 "to be inserted", 478 }, 479 { /* end of list */ } 480 }, 481 }; 482 483 static QemuOptsList qemu_action_opts = { 484 .name = "action", 485 .merge_lists = true, 486 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head), 487 .desc = { 488 { 489 .name = "shutdown", 490 .type = QEMU_OPT_STRING, 491 },{ 492 .name = "reboot", 493 .type = QEMU_OPT_STRING, 494 },{ 495 .name = "panic", 496 .type = QEMU_OPT_STRING, 497 },{ 498 .name = "watchdog", 499 .type = QEMU_OPT_STRING, 500 }, 501 { /* end of list */ } 502 }, 503 }; 504 505 const char *qemu_get_vm_name(void) 506 { 507 return qemu_name; 508 } 509 510 static void default_driver_disable(const char *driver) 511 { 512 int i; 513 514 if (!driver) { 515 return; 516 } 517 518 for (i = 0; i < ARRAY_SIZE(default_list); i++) { 519 if (strcmp(default_list[i].driver, driver) != 0) 520 continue; 521 *(default_list[i].flag) = 0; 522 } 523 } 524 525 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp) 526 { 527 const char *driver = qemu_opt_get(opts, "driver"); 528 529 default_driver_disable(driver); 530 return 0; 531 } 532 533 static void default_driver_check_json(void) 534 { 535 DeviceOption *opt; 536 537 QTAILQ_FOREACH(opt, &device_opts, next) { 538 const char *driver = qdict_get_try_str(opt->opts, "driver"); 539 default_driver_disable(driver); 540 } 541 } 542 543 static int parse_name(void *opaque, QemuOpts *opts, Error **errp) 544 { 545 const char *proc_name; 546 547 if (qemu_opt_get(opts, "debug-threads")) { 548 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false)); 549 } 550 qemu_name = qemu_opt_get(opts, "guest"); 551 552 proc_name = qemu_opt_get(opts, "process"); 553 if (proc_name) { 554 os_set_proc_name(proc_name); 555 } 556 557 return 0; 558 } 559 560 bool defaults_enabled(void) 561 { 562 return has_defaults; 563 } 564 565 #ifndef _WIN32 566 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp) 567 { 568 int fd, dupfd, flags; 569 int64_t fdset_id; 570 const char *fd_opaque = NULL; 571 AddfdInfo *fdinfo; 572 573 fd = qemu_opt_get_number(opts, "fd", -1); 574 fdset_id = qemu_opt_get_number(opts, "set", -1); 575 fd_opaque = qemu_opt_get(opts, "opaque"); 576 577 if (fd < 0) { 578 error_setg(errp, "fd option is required and must be non-negative"); 579 return -1; 580 } 581 582 if (fd <= STDERR_FILENO) { 583 error_setg(errp, "fd cannot be a standard I/O stream"); 584 return -1; 585 } 586 587 /* 588 * All fds inherited across exec() necessarily have FD_CLOEXEC 589 * clear, while qemu sets FD_CLOEXEC on all other fds used internally. 590 */ 591 flags = fcntl(fd, F_GETFD); 592 if (flags == -1 || (flags & FD_CLOEXEC)) { 593 error_setg(errp, "fd is not valid or already in use"); 594 return -1; 595 } 596 597 if (fdset_id < 0) { 598 error_setg(errp, "set option is required and must be non-negative"); 599 return -1; 600 } 601 602 #ifdef F_DUPFD_CLOEXEC 603 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0); 604 #else 605 dupfd = dup(fd); 606 if (dupfd != -1) { 607 qemu_set_cloexec(dupfd); 608 } 609 #endif 610 if (dupfd == -1) { 611 error_setg(errp, "error duplicating fd: %s", strerror(errno)); 612 return -1; 613 } 614 615 /* add the duplicate fd, and optionally the opaque string, to the fd set */ 616 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque, 617 &error_abort); 618 g_free(fdinfo); 619 620 return 0; 621 } 622 623 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp) 624 { 625 int fd; 626 627 fd = qemu_opt_get_number(opts, "fd", -1); 628 close(fd); 629 630 return 0; 631 } 632 #endif 633 634 /***********************************************************/ 635 /* QEMU Block devices */ 636 637 #define HD_OPTS "media=disk" 638 #define CDROM_OPTS "media=cdrom" 639 #define FD_OPTS "" 640 #define PFLASH_OPTS "" 641 #define MTD_OPTS "" 642 #define SD_OPTS "" 643 644 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp) 645 { 646 BlockInterfaceType *block_default_type = opaque; 647 648 return drive_new(opts, *block_default_type, errp) == NULL; 649 } 650 651 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp) 652 { 653 if (qemu_opt_get(opts, "snapshot") == NULL) { 654 qemu_opt_set(opts, "snapshot", "on", &error_abort); 655 } 656 return 0; 657 } 658 659 static void default_drive(int enable, int snapshot, BlockInterfaceType type, 660 int index, const char *optstr) 661 { 662 QemuOpts *opts; 663 DriveInfo *dinfo; 664 665 if (!enable || drive_get_by_index(type, index)) { 666 return; 667 } 668 669 opts = drive_add(type, index, NULL, optstr); 670 if (snapshot) { 671 drive_enable_snapshot(NULL, opts, NULL); 672 } 673 674 dinfo = drive_new(opts, type, &error_abort); 675 dinfo->is_default = true; 676 677 } 678 679 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue, 680 MachineClass *machine_class, int snapshot) 681 { 682 /* 683 * If the currently selected machine wishes to override the 684 * units-per-bus property of its default HBA interface type, do so 685 * now. 686 */ 687 if (machine_class->units_per_default_bus) { 688 override_max_devs(machine_class->block_default_type, 689 machine_class->units_per_default_bus); 690 } 691 692 /* open the virtual block devices */ 693 while (!QSIMPLEQ_EMPTY(bdo_queue)) { 694 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue); 695 696 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry); 697 loc_push_restore(&bdo->loc); 698 qmp_blockdev_add(bdo->bdo, &error_fatal); 699 loc_pop(&bdo->loc); 700 qapi_free_BlockdevOptions(bdo->bdo); 701 g_free(bdo); 702 } 703 if (snapshot) { 704 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, 705 NULL, NULL); 706 } 707 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, 708 &machine_class->block_default_type, &error_fatal)) { 709 /* We printed help */ 710 exit(0); 711 } 712 713 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2, 714 CDROM_OPTS); 715 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS); 716 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS); 717 718 } 719 720 static QemuOptsList qemu_smp_opts = { 721 .name = "smp-opts", 722 .implied_opt_name = "cpus", 723 .merge_lists = true, 724 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head), 725 .desc = { 726 { 727 .name = "cpus", 728 .type = QEMU_OPT_NUMBER, 729 }, { 730 .name = "sockets", 731 .type = QEMU_OPT_NUMBER, 732 }, { 733 .name = "dies", 734 .type = QEMU_OPT_NUMBER, 735 }, { 736 .name = "clusters", 737 .type = QEMU_OPT_NUMBER, 738 }, { 739 .name = "cores", 740 .type = QEMU_OPT_NUMBER, 741 }, { 742 .name = "threads", 743 .type = QEMU_OPT_NUMBER, 744 }, { 745 .name = "maxcpus", 746 .type = QEMU_OPT_NUMBER, 747 }, 748 { /*End of list */ } 749 }, 750 }; 751 752 #if defined(CONFIG_POSIX) 753 static QemuOptsList qemu_run_with_opts = { 754 .name = "run-with", 755 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head), 756 .desc = { 757 #if defined(CONFIG_LINUX) 758 { 759 .name = "async-teardown", 760 .type = QEMU_OPT_BOOL, 761 }, 762 #endif 763 { 764 .name = "chroot", 765 .type = QEMU_OPT_STRING, 766 }, 767 { /* end of list */ } 768 }, 769 }; 770 771 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts) 772 773 #else 774 775 #define qemu_add_run_with_opts() 776 777 #endif /* CONFIG_POSIX */ 778 779 static void realtime_init(void) 780 { 781 if (enable_mlock) { 782 if (os_mlock() < 0) { 783 error_report("locking memory failed"); 784 exit(1); 785 } 786 } 787 } 788 789 790 static void configure_msg(QemuOpts *opts) 791 { 792 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false); 793 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false); 794 } 795 796 797 /***********************************************************/ 798 /* USB devices */ 799 800 static int usb_device_add(const char *devname) 801 { 802 USBDevice *dev = NULL; 803 804 if (!machine_usb(current_machine)) { 805 return -1; 806 } 807 808 dev = usbdevice_create(devname); 809 if (!dev) 810 return -1; 811 812 return 0; 813 } 814 815 static int usb_parse(const char *cmdline) 816 { 817 int r; 818 r = usb_device_add(cmdline); 819 if (r < 0) { 820 error_report("could not add USB device '%s'", cmdline); 821 } 822 return r; 823 } 824 825 /***********************************************************/ 826 /* machine registration */ 827 828 static MachineClass *find_machine(const char *name, GSList *machines) 829 { 830 GSList *el; 831 832 for (el = machines; el; el = el->next) { 833 MachineClass *mc = el->data; 834 835 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) { 836 return mc; 837 } 838 } 839 840 return NULL; 841 } 842 843 static MachineClass *find_default_machine(GSList *machines) 844 { 845 GSList *el; 846 MachineClass *default_machineclass = NULL; 847 848 for (el = machines; el; el = el->next) { 849 MachineClass *mc = el->data; 850 851 if (mc->is_default) { 852 assert(default_machineclass == NULL && "Multiple default machines"); 853 default_machineclass = mc; 854 } 855 } 856 857 return default_machineclass; 858 } 859 860 static void version(void) 861 { 862 printf("QEMU emulator version " QEMU_FULL_VERSION "\n" 863 QEMU_COPYRIGHT "\n"); 864 } 865 866 static void help(int exitcode) 867 { 868 version(); 869 printf("usage: %s [options] [disk_image]\n\n" 870 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n", 871 g_get_prgname()); 872 873 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 874 if ((arch_mask) & arch_type) \ 875 fputs(opt_help, stdout); 876 877 #define ARCHHEADING(text, arch_mask) \ 878 if ((arch_mask) & arch_type) \ 879 puts(stringify(text)); 880 881 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL) 882 883 #include "qemu-options.def" 884 885 printf("\nDuring emulation, the following keys are useful:\n" 886 "ctrl-alt-f toggle full screen\n" 887 "ctrl-alt-n switch to virtual console 'n'\n" 888 "ctrl-alt toggle mouse and keyboard grab\n" 889 "\n" 890 "When using -nographic, press 'ctrl-a h' to get some help.\n" 891 "\n" 892 QEMU_HELP_BOTTOM "\n"); 893 894 exit(exitcode); 895 } 896 897 enum { 898 899 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 900 opt_enum, 901 #define DEFHEADING(text) 902 #define ARCHHEADING(text, arch_mask) 903 904 #include "qemu-options.def" 905 }; 906 907 #define HAS_ARG 0x0001 908 909 typedef struct QEMUOption { 910 const char *name; 911 int flags; 912 int index; 913 uint32_t arch_mask; 914 } QEMUOption; 915 916 static const QEMUOption qemu_options[] = { 917 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL }, 918 919 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 920 { option, opt_arg, opt_enum, arch_mask }, 921 #define DEFHEADING(text) 922 #define ARCHHEADING(text, arch_mask) 923 924 #include "qemu-options.def" 925 { /* end of list */ } 926 }; 927 928 typedef struct VGAInterfaceInfo { 929 const char *opt_name; /* option name */ 930 const char *name; /* human-readable name */ 931 /* Class names indicating that support is available. 932 * If no class is specified, the interface is always available */ 933 const char *class_names[2]; 934 } VGAInterfaceInfo; 935 936 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = { 937 [VGA_NONE] = { 938 .opt_name = "none", 939 .name = "no graphic card", 940 }, 941 [VGA_STD] = { 942 .opt_name = "std", 943 .name = "standard VGA", 944 .class_names = { "VGA", "isa-vga" }, 945 }, 946 [VGA_CIRRUS] = { 947 .opt_name = "cirrus", 948 .name = "Cirrus VGA", 949 .class_names = { "cirrus-vga", "isa-cirrus-vga" }, 950 }, 951 [VGA_VMWARE] = { 952 .opt_name = "vmware", 953 .name = "VMWare SVGA", 954 .class_names = { "vmware-svga" }, 955 }, 956 [VGA_VIRTIO] = { 957 .opt_name = "virtio", 958 .name = "Virtio VGA", 959 .class_names = { "virtio-vga" }, 960 }, 961 [VGA_QXL] = { 962 .opt_name = "qxl", 963 .name = "QXL VGA", 964 .class_names = { "qxl-vga" }, 965 }, 966 [VGA_TCX] = { 967 .opt_name = "tcx", 968 .name = "TCX framebuffer", 969 .class_names = { "sun-tcx" }, 970 }, 971 [VGA_CG3] = { 972 .opt_name = "cg3", 973 .name = "CG3 framebuffer", 974 .class_names = { "cgthree" }, 975 }, 976 #ifdef CONFIG_XEN_BACKEND 977 [VGA_XENFB] = { 978 .opt_name = "xenfb", 979 .name = "Xen paravirtualized framebuffer", 980 }, 981 #endif 982 }; 983 984 static bool vga_interface_available(VGAInterfaceType t) 985 { 986 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 987 988 assert(t < VGA_TYPE_MAX); 989 return !ti->class_names[0] || 990 module_object_class_by_name(ti->class_names[0]) || 991 module_object_class_by_name(ti->class_names[1]); 992 } 993 994 static const char * 995 get_default_vga_model(const MachineClass *machine_class) 996 { 997 if (machine_class->default_display) { 998 for (int t = 0; t < VGA_TYPE_MAX; t++) { 999 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1000 1001 if (ti->opt_name && vga_interface_available(t) && 1002 g_str_equal(ti->opt_name, machine_class->default_display)) { 1003 return machine_class->default_display; 1004 } 1005 } 1006 1007 warn_report_once("Default display '%s' is not available in this binary", 1008 machine_class->default_display); 1009 return NULL; 1010 } else if (vga_interface_available(VGA_CIRRUS)) { 1011 return "cirrus"; 1012 } else if (vga_interface_available(VGA_STD)) { 1013 return "std"; 1014 } 1015 1016 return NULL; 1017 } 1018 1019 static void select_vgahw(const MachineClass *machine_class, const char *p) 1020 { 1021 const char *opts; 1022 int t; 1023 1024 if (g_str_equal(p, "help")) { 1025 const char *def = get_default_vga_model(machine_class); 1026 1027 for (t = 0; t < VGA_TYPE_MAX; t++) { 1028 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1029 1030 if (vga_interface_available(t) && ti->opt_name) { 1031 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "", 1032 (def && g_str_equal(ti->opt_name, def)) ? 1033 " (default)" : ""); 1034 } 1035 } 1036 exit(0); 1037 } 1038 1039 assert(vga_interface_type == VGA_NONE); 1040 for (t = 0; t < VGA_TYPE_MAX; t++) { 1041 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1042 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) { 1043 if (!vga_interface_available(t)) { 1044 error_report("%s not available", ti->name); 1045 exit(1); 1046 } 1047 vga_interface_type = t; 1048 break; 1049 } 1050 } 1051 if (t == VGA_TYPE_MAX) { 1052 invalid_vga: 1053 error_report("unknown vga type: %s", p); 1054 exit(1); 1055 } 1056 while (*opts) { 1057 const char *nextopt; 1058 1059 if (strstart(opts, ",retrace=", &nextopt)) { 1060 opts = nextopt; 1061 if (strstart(opts, "dumb", &nextopt)) 1062 vga_retrace_method = VGA_RETRACE_DUMB; 1063 else if (strstart(opts, "precise", &nextopt)) 1064 vga_retrace_method = VGA_RETRACE_PRECISE; 1065 else goto invalid_vga; 1066 } else goto invalid_vga; 1067 opts = nextopt; 1068 } 1069 } 1070 1071 static void parse_display_qapi(const char *str) 1072 { 1073 DisplayOptions *opts; 1074 Visitor *v; 1075 1076 v = qobject_input_visitor_new_str(str, "type", &error_fatal); 1077 1078 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); 1079 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts); 1080 1081 qapi_free_DisplayOptions(opts); 1082 visit_free(v); 1083 } 1084 1085 DisplayOptions *qmp_query_display_options(Error **errp) 1086 { 1087 return QAPI_CLONE(DisplayOptions, &dpy); 1088 } 1089 1090 static void parse_display(const char *p) 1091 { 1092 const char *opts; 1093 1094 if (is_help_option(p)) { 1095 qemu_display_help(); 1096 exit(0); 1097 } 1098 1099 if (strstart(p, "vnc", &opts)) { 1100 /* 1101 * vnc isn't a (local) DisplayType but a protocol for remote 1102 * display access. 1103 */ 1104 if (*opts == '=') { 1105 vnc_parse(opts + 1); 1106 } else { 1107 error_report("VNC requires a display argument vnc=<display>"); 1108 exit(1); 1109 } 1110 } else { 1111 parse_display_qapi(p); 1112 } 1113 } 1114 1115 static inline bool nonempty_str(const char *str) 1116 { 1117 return str && *str; 1118 } 1119 1120 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) 1121 { 1122 gchar *buf; 1123 size_t size; 1124 const char *name, *file, *str, *gen_id; 1125 FWCfgState *fw_cfg = (FWCfgState *) opaque; 1126 1127 if (fw_cfg == NULL) { 1128 error_setg(errp, "fw_cfg device not available"); 1129 return -1; 1130 } 1131 name = qemu_opt_get(opts, "name"); 1132 file = qemu_opt_get(opts, "file"); 1133 str = qemu_opt_get(opts, "string"); 1134 gen_id = qemu_opt_get(opts, "gen_id"); 1135 1136 /* we need the name, and exactly one of: file, content string, gen_id */ 1137 if (!nonempty_str(name) || 1138 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) { 1139 error_setg(errp, "name, plus exactly one of file," 1140 " string and gen_id, are needed"); 1141 return -1; 1142 } 1143 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { 1144 error_setg(errp, "name too long (max. %d char)", 1145 FW_CFG_MAX_FILE_PATH - 1); 1146 return -1; 1147 } 1148 if (nonempty_str(gen_id)) { 1149 /* 1150 * In this particular case where the content is populated 1151 * internally, the "etc/" namespace protection is relaxed, 1152 * so do not emit a warning. 1153 */ 1154 } else if (strncmp(name, "opt/", 4) != 0) { 1155 warn_report("externally provided fw_cfg item names " 1156 "should be prefixed with \"opt/\""); 1157 } 1158 if (nonempty_str(str)) { 1159 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */ 1160 buf = g_memdup(str, size); 1161 } else if (nonempty_str(gen_id)) { 1162 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) { 1163 return -1; 1164 } 1165 return 0; 1166 } else { 1167 GError *err = NULL; 1168 if (!g_file_get_contents(file, &buf, &size, &err)) { 1169 error_setg(errp, "can't load %s: %s", file, err->message); 1170 g_error_free(err); 1171 return -1; 1172 } 1173 } 1174 /* For legacy, keep user files in a specific global order. */ 1175 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); 1176 fw_cfg_add_file(fw_cfg, name, buf, size); 1177 fw_cfg_reset_order_override(fw_cfg); 1178 return 0; 1179 } 1180 1181 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) 1182 { 1183 return qdev_device_help(opts); 1184 } 1185 1186 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) 1187 { 1188 DeviceState *dev; 1189 1190 dev = qdev_device_add(opts, errp); 1191 if (!dev && *errp) { 1192 error_report_err(*errp); 1193 return -1; 1194 } else if (dev) { 1195 object_unref(OBJECT(dev)); 1196 } 1197 return 0; 1198 } 1199 1200 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1201 { 1202 Error *local_err = NULL; 1203 1204 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { 1205 if (local_err) { 1206 error_propagate(errp, local_err); 1207 return -1; 1208 } 1209 exit(0); 1210 } 1211 return 0; 1212 } 1213 1214 #ifdef CONFIG_VIRTFS 1215 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1216 { 1217 return qemu_fsdev_add(opts, errp); 1218 } 1219 #endif 1220 1221 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) 1222 { 1223 return monitor_init_opts(opts, errp); 1224 } 1225 1226 static void monitor_parse(const char *str, const char *mode, bool pretty) 1227 { 1228 static int monitor_device_index = 0; 1229 QemuOpts *opts; 1230 const char *p; 1231 char label[32]; 1232 1233 if (strstart(str, "chardev:", &p)) { 1234 snprintf(label, sizeof(label), "%s", p); 1235 } else { 1236 snprintf(label, sizeof(label), "compat_monitor%d", 1237 monitor_device_index); 1238 opts = qemu_chr_parse_compat(label, str, true); 1239 if (!opts) { 1240 error_report("parse error: %s", str); 1241 exit(1); 1242 } 1243 } 1244 1245 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); 1246 qemu_opt_set(opts, "mode", mode, &error_abort); 1247 qemu_opt_set(opts, "chardev", label, &error_abort); 1248 if (!strcmp(mode, "control")) { 1249 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); 1250 } else { 1251 assert(pretty == false); 1252 } 1253 monitor_device_index++; 1254 } 1255 1256 struct device_config { 1257 enum { 1258 DEV_USB, /* -usbdevice */ 1259 DEV_SERIAL, /* -serial */ 1260 DEV_PARALLEL, /* -parallel */ 1261 DEV_DEBUGCON, /* -debugcon */ 1262 DEV_GDB, /* -gdb, -s */ 1263 DEV_SCLP, /* s390 sclp */ 1264 } type; 1265 const char *cmdline; 1266 Location loc; 1267 QTAILQ_ENTRY(device_config) next; 1268 }; 1269 1270 static QTAILQ_HEAD(, device_config) device_configs = 1271 QTAILQ_HEAD_INITIALIZER(device_configs); 1272 1273 static void add_device_config(int type, const char *cmdline) 1274 { 1275 struct device_config *conf; 1276 1277 conf = g_malloc0(sizeof(*conf)); 1278 conf->type = type; 1279 conf->cmdline = cmdline; 1280 loc_save(&conf->loc); 1281 QTAILQ_INSERT_TAIL(&device_configs, conf, next); 1282 } 1283 1284 static int foreach_device_config(int type, int (*func)(const char *cmdline)) 1285 { 1286 struct device_config *conf; 1287 int rc; 1288 1289 QTAILQ_FOREACH(conf, &device_configs, next) { 1290 if (conf->type != type) 1291 continue; 1292 loc_push_restore(&conf->loc); 1293 rc = func(conf->cmdline); 1294 loc_pop(&conf->loc); 1295 if (rc) { 1296 return rc; 1297 } 1298 } 1299 return 0; 1300 } 1301 1302 static void qemu_disable_default_devices(void) 1303 { 1304 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1305 1306 default_driver_check_json(); 1307 qemu_opts_foreach(qemu_find_opts("device"), 1308 default_driver_check, NULL, NULL); 1309 qemu_opts_foreach(qemu_find_opts("global"), 1310 default_driver_check, NULL, NULL); 1311 1312 if (!vga_model && !default_vga) { 1313 vga_interface_type = VGA_DEVICE; 1314 vga_interface_created = true; 1315 } 1316 if (!has_defaults || machine_class->no_serial) { 1317 default_serial = 0; 1318 } 1319 if (!has_defaults || machine_class->no_parallel) { 1320 default_parallel = 0; 1321 } 1322 if (!has_defaults || machine_class->no_floppy) { 1323 default_floppy = 0; 1324 } 1325 if (!has_defaults || machine_class->no_cdrom) { 1326 default_cdrom = 0; 1327 } 1328 if (!has_defaults || machine_class->no_sdcard) { 1329 default_sdcard = 0; 1330 } 1331 if (!has_defaults) { 1332 default_audio = 0; 1333 default_monitor = 0; 1334 default_net = 0; 1335 default_vga = 0; 1336 } else { 1337 if (default_net && machine_class->default_nic && 1338 !module_object_class_by_name(machine_class->default_nic)) { 1339 warn_report("Default NIC '%s' is not available in this binary", 1340 machine_class->default_nic); 1341 default_net = 0; 1342 } 1343 } 1344 } 1345 1346 static void qemu_create_default_devices(void) 1347 { 1348 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1349 1350 if (is_daemonized()) { 1351 /* According to documentation and historically, -nographic redirects 1352 * serial port, parallel port and monitor to stdio, which does not work 1353 * with -daemonize. We can redirect these to null instead, but since 1354 * -nographic is legacy, let's just error out. 1355 * We disallow -nographic only if all other ports are not redirected 1356 * explicitly, to not break existing legacy setups which uses 1357 * -nographic _and_ redirects all ports explicitly - this is valid 1358 * usage, -nographic is just a no-op in this case. 1359 */ 1360 if (nographic 1361 && (default_parallel || default_serial || default_monitor)) { 1362 error_report("-nographic cannot be used with -daemonize"); 1363 exit(1); 1364 } 1365 } 1366 1367 if (nographic) { 1368 if (default_parallel) 1369 add_device_config(DEV_PARALLEL, "null"); 1370 if (default_serial && default_monitor) { 1371 add_device_config(DEV_SERIAL, "mon:stdio"); 1372 } else { 1373 if (default_serial) 1374 add_device_config(DEV_SERIAL, "stdio"); 1375 if (default_monitor) 1376 monitor_parse("stdio", "readline", false); 1377 } 1378 } else { 1379 if (default_serial) 1380 add_device_config(DEV_SERIAL, "vc:80Cx24C"); 1381 if (default_parallel) 1382 add_device_config(DEV_PARALLEL, "vc:80Cx24C"); 1383 if (default_monitor) 1384 monitor_parse("vc:80Cx24C", "readline", false); 1385 } 1386 1387 if (default_net) { 1388 QemuOptsList *net = qemu_find_opts("net"); 1389 qemu_opts_parse(net, "nic", true, &error_abort); 1390 #ifdef CONFIG_SLIRP 1391 qemu_opts_parse(net, "user", true, &error_abort); 1392 #endif 1393 } 1394 1395 #if defined(CONFIG_VNC) 1396 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) { 1397 display_remote++; 1398 } 1399 #endif 1400 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { 1401 if (!qemu_display_find_default(&dpy)) { 1402 dpy.type = DISPLAY_TYPE_NONE; 1403 #if defined(CONFIG_VNC) 1404 vnc_parse("localhost:0,to=99,id=default"); 1405 #endif 1406 } 1407 } 1408 if (dpy.type == DISPLAY_TYPE_DEFAULT) { 1409 dpy.type = DISPLAY_TYPE_NONE; 1410 } 1411 1412 /* If no default VGA is requested, the default is "none". */ 1413 if (default_vga) { 1414 vga_model = get_default_vga_model(machine_class); 1415 } 1416 if (vga_model) { 1417 select_vgahw(machine_class, vga_model); 1418 } 1419 } 1420 1421 static int serial_parse(const char *devname) 1422 { 1423 int index = num_serial_hds; 1424 char label[32]; 1425 1426 if (strcmp(devname, "none") == 0) 1427 return 0; 1428 snprintf(label, sizeof(label), "serial%d", index); 1429 serial_hds = g_renew(Chardev *, serial_hds, index + 1); 1430 1431 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1432 if (!serial_hds[index]) { 1433 error_report("could not connect serial device" 1434 " to character backend '%s'", devname); 1435 return -1; 1436 } 1437 num_serial_hds++; 1438 return 0; 1439 } 1440 1441 Chardev *serial_hd(int i) 1442 { 1443 assert(i >= 0); 1444 if (i < num_serial_hds) { 1445 return serial_hds[i]; 1446 } 1447 return NULL; 1448 } 1449 1450 static int parallel_parse(const char *devname) 1451 { 1452 static int index = 0; 1453 char label[32]; 1454 1455 if (strcmp(devname, "none") == 0) 1456 return 0; 1457 if (index == MAX_PARALLEL_PORTS) { 1458 error_report("too many parallel ports"); 1459 exit(1); 1460 } 1461 snprintf(label, sizeof(label), "parallel%d", index); 1462 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1463 if (!parallel_hds[index]) { 1464 error_report("could not connect parallel device" 1465 " to character backend '%s'", devname); 1466 return -1; 1467 } 1468 index++; 1469 return 0; 1470 } 1471 1472 static int debugcon_parse(const char *devname) 1473 { 1474 QemuOpts *opts; 1475 1476 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { 1477 error_report("invalid character backend '%s'", devname); 1478 exit(1); 1479 } 1480 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); 1481 if (!opts) { 1482 error_report("already have a debugcon device"); 1483 exit(1); 1484 } 1485 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); 1486 qemu_opt_set(opts, "chardev", "debugcon", &error_abort); 1487 return 0; 1488 } 1489 1490 static gint machine_class_cmp(gconstpointer a, gconstpointer b) 1491 { 1492 const MachineClass *mc1 = a, *mc2 = b; 1493 int res; 1494 1495 if (mc1->family == NULL) { 1496 if (mc2->family == NULL) { 1497 /* Compare standalone machine types against each other; they sort 1498 * in increasing order. 1499 */ 1500 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), 1501 object_class_get_name(OBJECT_CLASS(mc2))); 1502 } 1503 1504 /* Standalone machine types sort after families. */ 1505 return 1; 1506 } 1507 1508 if (mc2->family == NULL) { 1509 /* Families sort before standalone machine types. */ 1510 return -1; 1511 } 1512 1513 /* Families sort between each other alphabetically increasingly. */ 1514 res = strcmp(mc1->family, mc2->family); 1515 if (res != 0) { 1516 return res; 1517 } 1518 1519 /* Within the same family, machine types sort in decreasing order. */ 1520 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), 1521 object_class_get_name(OBJECT_CLASS(mc1))); 1522 } 1523 1524 static void machine_help_func(const QDict *qdict) 1525 { 1526 GSList *machines, *el; 1527 const char *type = qdict_get_try_str(qdict, "type"); 1528 1529 machines = object_class_get_list(TYPE_MACHINE, false); 1530 if (type) { 1531 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); 1532 if (machine_class) { 1533 type_print_class_properties(object_class_get_name(machine_class)); 1534 return; 1535 } 1536 } 1537 1538 printf("Supported machines are:\n"); 1539 machines = g_slist_sort(machines, machine_class_cmp); 1540 for (el = machines; el; el = el->next) { 1541 MachineClass *mc = el->data; 1542 if (mc->alias) { 1543 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); 1544 } 1545 printf("%-20s %s%s%s\n", mc->name, mc->desc, 1546 mc->is_default ? " (default)" : "", 1547 mc->deprecation_reason ? " (deprecated)" : ""); 1548 } 1549 } 1550 1551 static void 1552 machine_merge_property(const char *propname, QDict *prop, Error **errp) 1553 { 1554 QDict *opts; 1555 1556 opts = qdict_new(); 1557 /* Preserve the caller's reference to prop. */ 1558 qobject_ref(prop); 1559 qdict_put(opts, propname, prop); 1560 keyval_merge(machine_opts_dict, opts, errp); 1561 qobject_unref(opts); 1562 } 1563 1564 static void 1565 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, 1566 const char *arg) 1567 { 1568 QDict *prop = NULL; 1569 bool help = false; 1570 1571 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); 1572 if (help) { 1573 qemu_opts_print_help(opts_list, true); 1574 exit(0); 1575 } 1576 machine_merge_property(propname, prop, &error_fatal); 1577 qobject_unref(prop); 1578 } 1579 1580 static const char *pid_file; 1581 struct UnlinkPidfileNotifier { 1582 Notifier notifier; 1583 char *pid_file_realpath; 1584 }; 1585 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; 1586 1587 static void qemu_unlink_pidfile(Notifier *n, void *data) 1588 { 1589 struct UnlinkPidfileNotifier *upn; 1590 1591 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); 1592 unlink(upn->pid_file_realpath); 1593 } 1594 1595 static const QEMUOption *lookup_opt(int argc, char **argv, 1596 const char **poptarg, int *poptind) 1597 { 1598 const QEMUOption *popt; 1599 int optind = *poptind; 1600 char *r = argv[optind]; 1601 const char *optarg; 1602 1603 loc_set_cmdline(argv, optind, 1); 1604 optind++; 1605 /* Treat --foo the same as -foo. */ 1606 if (r[1] == '-') 1607 r++; 1608 popt = qemu_options; 1609 for(;;) { 1610 if (!popt->name) { 1611 error_report("invalid option"); 1612 exit(1); 1613 } 1614 if (!strcmp(popt->name, r + 1)) 1615 break; 1616 popt++; 1617 } 1618 if (popt->flags & HAS_ARG) { 1619 if (optind >= argc) { 1620 error_report("requires an argument"); 1621 exit(1); 1622 } 1623 optarg = argv[optind++]; 1624 loc_set_cmdline(argv, optind - 2, 2); 1625 } else { 1626 optarg = NULL; 1627 } 1628 1629 *poptarg = optarg; 1630 *poptind = optind; 1631 1632 return popt; 1633 } 1634 1635 static MachineClass *select_machine(QDict *qdict, Error **errp) 1636 { 1637 const char *machine_type = qdict_get_try_str(qdict, "type"); 1638 GSList *machines = object_class_get_list(TYPE_MACHINE, false); 1639 MachineClass *machine_class; 1640 Error *local_err = NULL; 1641 1642 if (machine_type) { 1643 machine_class = find_machine(machine_type, machines); 1644 qdict_del(qdict, "type"); 1645 if (!machine_class) { 1646 error_setg(&local_err, "unsupported machine type"); 1647 } 1648 } else { 1649 machine_class = find_default_machine(machines); 1650 if (!machine_class) { 1651 error_setg(&local_err, "No machine specified, and there is no default"); 1652 } 1653 } 1654 1655 g_slist_free(machines); 1656 if (local_err) { 1657 error_append_hint(&local_err, "Use -machine help to list supported machines\n"); 1658 error_propagate(errp, local_err); 1659 } 1660 return machine_class; 1661 } 1662 1663 static int object_parse_property_opt(Object *obj, 1664 const char *name, const char *value, 1665 const char *skip, Error **errp) 1666 { 1667 if (g_str_equal(name, skip)) { 1668 return 0; 1669 } 1670 1671 if (!object_property_parse(obj, name, value, errp)) { 1672 return -1; 1673 } 1674 1675 return 0; 1676 } 1677 1678 /* *Non*recursively replace underscores with dashes in QDict keys. */ 1679 static void keyval_dashify(QDict *qdict, Error **errp) 1680 { 1681 const QDictEntry *ent, *next; 1682 char *p; 1683 1684 for (ent = qdict_first(qdict); ent; ent = next) { 1685 g_autofree char *new_key = NULL; 1686 1687 next = qdict_next(qdict, ent); 1688 if (!strchr(ent->key, '_')) { 1689 continue; 1690 } 1691 new_key = g_strdup(ent->key); 1692 for (p = new_key; *p; p++) { 1693 if (*p == '_') { 1694 *p = '-'; 1695 } 1696 } 1697 if (qdict_haskey(qdict, new_key)) { 1698 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); 1699 return; 1700 } 1701 qobject_ref(ent->value); 1702 qdict_put_obj(qdict, new_key, ent->value); 1703 qdict_del(qdict, ent->key); 1704 } 1705 } 1706 1707 static void qemu_apply_legacy_machine_options(QDict *qdict) 1708 { 1709 const char *value; 1710 QObject *prop; 1711 1712 keyval_dashify(qdict, &error_fatal); 1713 1714 /* Legacy options do not correspond to MachineState properties. */ 1715 value = qdict_get_try_str(qdict, "accel"); 1716 if (value) { 1717 accelerators = g_strdup(value); 1718 qdict_del(qdict, "accel"); 1719 } 1720 1721 value = qdict_get_try_str(qdict, "igd-passthru"); 1722 if (value) { 1723 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, 1724 false); 1725 qdict_del(qdict, "igd-passthru"); 1726 } 1727 1728 value = qdict_get_try_str(qdict, "kvm-shadow-mem"); 1729 if (value) { 1730 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, 1731 false); 1732 qdict_del(qdict, "kvm-shadow-mem"); 1733 } 1734 1735 value = qdict_get_try_str(qdict, "kernel-irqchip"); 1736 if (value) { 1737 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, 1738 false); 1739 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, 1740 false); 1741 qdict_del(qdict, "kernel-irqchip"); 1742 } 1743 1744 value = qdict_get_try_str(qdict, "memory-backend"); 1745 if (value) { 1746 if (mem_path) { 1747 error_report("'-mem-path' can't be used together with" 1748 "'-machine memory-backend'"); 1749 exit(EXIT_FAILURE); 1750 } 1751 1752 /* Resolved later. */ 1753 ram_memdev_id = g_strdup(value); 1754 qdict_del(qdict, "memory-backend"); 1755 } 1756 1757 prop = qdict_get(qdict, "memory"); 1758 if (prop) { 1759 have_custom_ram_size = 1760 qobject_type(prop) == QTYPE_QDICT && 1761 qdict_haskey(qobject_to(QDict, prop), "size"); 1762 } 1763 } 1764 1765 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) 1766 { 1767 ObjectOption *opt, *next; 1768 1769 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { 1770 const char *type = ObjectType_str(opt->opts->qom_type); 1771 if (type_opt_predicate(type)) { 1772 user_creatable_add_qapi(opt->opts, &error_fatal); 1773 qapi_free_ObjectOptions(opt->opts); 1774 QTAILQ_REMOVE(&object_opts, opt, next); 1775 g_free(opt); 1776 } 1777 } 1778 } 1779 1780 static void object_option_add_visitor(Visitor *v) 1781 { 1782 ObjectOption *opt = g_new0(ObjectOption, 1); 1783 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); 1784 QTAILQ_INSERT_TAIL(&object_opts, opt, next); 1785 } 1786 1787 static void object_option_parse(const char *str) 1788 { 1789 QemuOpts *opts; 1790 const char *type; 1791 Visitor *v; 1792 1793 if (str[0] == '{') { 1794 QObject *obj = qobject_from_json(str, &error_fatal); 1795 1796 v = qobject_input_visitor_new(obj); 1797 qobject_unref(obj); 1798 } else { 1799 opts = qemu_opts_parse_noisily(qemu_find_opts("object"), 1800 str, true); 1801 if (!opts) { 1802 exit(1); 1803 } 1804 1805 type = qemu_opt_get(opts, "qom-type"); 1806 if (!type) { 1807 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type"); 1808 } 1809 if (user_creatable_print_help(type, opts)) { 1810 exit(0); 1811 } 1812 1813 v = opts_visitor_new(opts); 1814 } 1815 1816 object_option_add_visitor(v); 1817 visit_free(v); 1818 } 1819 1820 /* 1821 * Very early object creation, before the sandbox options have been activated. 1822 */ 1823 static bool object_create_pre_sandbox(const char *type) 1824 { 1825 /* 1826 * Objects should in general not get initialized "too early" without 1827 * a reason. If you add one, state the reason in a comment! 1828 */ 1829 1830 /* 1831 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU 1832 * affinity of threads. 1833 */ 1834 if (g_str_equal(type, "thread-context")) { 1835 return true; 1836 } 1837 1838 return false; 1839 } 1840 1841 /* 1842 * Initial object creation happens before all other 1843 * QEMU data types are created. The majority of objects 1844 * can be created at this point. The rng-egd object 1845 * cannot be created here, as it depends on the chardev 1846 * already existing. 1847 */ 1848 static bool object_create_early(const char *type) 1849 { 1850 /* 1851 * Objects should not be made "delayed" without a reason. If you 1852 * add one, state the reason in a comment! 1853 */ 1854 1855 /* Reason: already created. */ 1856 if (object_create_pre_sandbox(type)) { 1857 return false; 1858 } 1859 1860 /* Reason: property "chardev" */ 1861 if (g_str_equal(type, "rng-egd") || 1862 g_str_equal(type, "qtest")) { 1863 return false; 1864 } 1865 1866 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) 1867 /* Reason: cryptodev-vhost-user property "chardev" */ 1868 if (g_str_equal(type, "cryptodev-vhost-user")) { 1869 return false; 1870 } 1871 #endif 1872 1873 /* Reason: vhost-user-blk-server property "node-name" */ 1874 if (g_str_equal(type, "vhost-user-blk-server")) { 1875 return false; 1876 } 1877 /* 1878 * Reason: filter-* property "netdev" etc. 1879 */ 1880 if (g_str_equal(type, "filter-buffer") || 1881 g_str_equal(type, "filter-dump") || 1882 g_str_equal(type, "filter-mirror") || 1883 g_str_equal(type, "filter-redirector") || 1884 g_str_equal(type, "colo-compare") || 1885 g_str_equal(type, "filter-rewriter") || 1886 g_str_equal(type, "filter-replay")) { 1887 return false; 1888 } 1889 1890 /* 1891 * Allocation of large amounts of memory may delay 1892 * chardev initialization for too long, and trigger timeouts 1893 * on software that waits for a monitor socket to be created 1894 * (e.g. libvirt). 1895 */ 1896 if (g_str_has_prefix(type, "memory-backend-")) { 1897 return false; 1898 } 1899 1900 return true; 1901 } 1902 1903 static void qemu_apply_machine_options(QDict *qdict) 1904 { 1905 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); 1906 1907 if (semihosting_enabled(false) && !semihosting_get_argc()) { 1908 /* fall back to the -kernel/-append */ 1909 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); 1910 } 1911 1912 if (current_machine->smp.cpus > 1) { 1913 replay_add_blocker("smp"); 1914 } 1915 } 1916 1917 static void qemu_create_early_backends(void) 1918 { 1919 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1920 #if defined(CONFIG_SDL) 1921 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); 1922 #else 1923 const bool use_sdl = false; 1924 #endif 1925 #if defined(CONFIG_GTK) 1926 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); 1927 #else 1928 const bool use_gtk = false; 1929 #endif 1930 1931 if (dpy.has_window_close && !use_gtk && !use_sdl) { 1932 error_report("window-close is only valid for GTK and SDL, " 1933 "ignoring option"); 1934 } 1935 1936 qemu_display_early_init(&dpy); 1937 qemu_console_early_init(); 1938 1939 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) { 1940 #if defined(CONFIG_OPENGL) 1941 error_report("OpenGL is not supported by the display"); 1942 #else 1943 error_report("OpenGL support is disabled"); 1944 #endif 1945 exit(1); 1946 } 1947 1948 object_option_foreach_add(object_create_early); 1949 1950 /* spice needs the timers to be initialized by this point */ 1951 /* spice must initialize before audio as it changes the default audiodev */ 1952 /* spice must initialize before chardevs (for spicevmc and spiceport) */ 1953 qemu_spice.init(); 1954 1955 qemu_opts_foreach(qemu_find_opts("chardev"), 1956 chardev_init_func, NULL, &error_fatal); 1957 1958 #ifdef CONFIG_VIRTFS 1959 qemu_opts_foreach(qemu_find_opts("fsdev"), 1960 fsdev_init_func, NULL, &error_fatal); 1961 #endif 1962 1963 /* 1964 * Note: we need to create audio and block backends before 1965 * setting machine properties, so they can be referred to. 1966 */ 1967 configure_blockdev(&bdo_queue, machine_class, snapshot); 1968 audio_init_audiodevs(); 1969 if (default_audio) { 1970 audio_create_default_audiodevs(); 1971 } 1972 } 1973 1974 1975 /* 1976 * The remainder of object creation happens after the 1977 * creation of chardev, fsdev, net clients and device data types. 1978 */ 1979 static bool object_create_late(const char *type) 1980 { 1981 return !object_create_early(type) && !object_create_pre_sandbox(type); 1982 } 1983 1984 static void qemu_create_late_backends(void) 1985 { 1986 if (qtest_chrdev) { 1987 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); 1988 } 1989 1990 net_init_clients(); 1991 1992 object_option_foreach_add(object_create_late); 1993 1994 if (tpm_init() < 0) { 1995 exit(1); 1996 } 1997 1998 qemu_opts_foreach(qemu_find_opts("mon"), 1999 mon_init_func, NULL, &error_fatal); 2000 2001 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) 2002 exit(1); 2003 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) 2004 exit(1); 2005 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0) 2006 exit(1); 2007 2008 /* now chardevs have been created we may have semihosting to connect */ 2009 qemu_semihosting_chardev_init(); 2010 } 2011 2012 static void qemu_resolve_machine_memdev(void) 2013 { 2014 if (ram_memdev_id) { 2015 Object *backend; 2016 ram_addr_t backend_size; 2017 2018 backend = object_resolve_path_type(ram_memdev_id, 2019 TYPE_MEMORY_BACKEND, NULL); 2020 if (!backend) { 2021 error_report("Memory backend '%s' not found", ram_memdev_id); 2022 exit(EXIT_FAILURE); 2023 } 2024 if (!have_custom_ram_size) { 2025 backend_size = object_property_get_uint(backend, "size", &error_abort); 2026 current_machine->ram_size = backend_size; 2027 } 2028 object_property_set_link(OBJECT(current_machine), 2029 "memory-backend", backend, &error_fatal); 2030 } 2031 } 2032 2033 static void parse_memory_options(void) 2034 { 2035 QemuOpts *opts = qemu_find_opts_singleton("memory"); 2036 QDict *dict, *prop; 2037 const char *mem_str; 2038 Location loc; 2039 2040 loc_push_none(&loc); 2041 qemu_opts_loc_restore(opts); 2042 2043 prop = qdict_new(); 2044 2045 if (qemu_opt_get_size(opts, "size", 0) != 0) { 2046 /* Fix up legacy suffix-less format */ 2047 mem_str = qemu_opt_get(opts, "size"); 2048 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { 2049 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); 2050 qdict_put_str(prop, "size", mib_str); 2051 } else { 2052 qdict_put_str(prop, "size", mem_str); 2053 } 2054 } 2055 2056 if (qemu_opt_get(opts, "maxmem")) { 2057 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); 2058 } 2059 if (qemu_opt_get(opts, "slots")) { 2060 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); 2061 } 2062 2063 dict = qdict_new(); 2064 qdict_put(dict, "memory", prop); 2065 keyval_merge(machine_opts_dict, dict, &error_fatal); 2066 qobject_unref(dict); 2067 loc_pop(&loc); 2068 } 2069 2070 static void qemu_create_machine(QDict *qdict) 2071 { 2072 MachineClass *machine_class = select_machine(qdict, &error_fatal); 2073 object_set_machine_compat_props(machine_class->compat_props); 2074 2075 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); 2076 object_property_add_child(object_get_root(), "machine", 2077 OBJECT(current_machine)); 2078 object_property_add_child(container_get(OBJECT(current_machine), 2079 "/unattached"), 2080 "sysbus", OBJECT(sysbus_get_default())); 2081 2082 if (machine_class->minimum_page_bits) { 2083 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { 2084 /* This would be a board error: specifying a minimum smaller than 2085 * a target's compile-time fixed setting. 2086 */ 2087 g_assert_not_reached(); 2088 } 2089 } 2090 2091 cpu_exec_init_all(); 2092 page_size_init(); 2093 2094 if (machine_class->hw_version) { 2095 qemu_set_hw_version(machine_class->hw_version); 2096 } 2097 2098 /* 2099 * Get the default machine options from the machine if it is not already 2100 * specified either by the configuration file or by the command line. 2101 */ 2102 if (machine_class->default_machine_opts) { 2103 QDict *default_opts = 2104 keyval_parse(machine_class->default_machine_opts, NULL, NULL, 2105 &error_abort); 2106 qemu_apply_legacy_machine_options(default_opts); 2107 object_set_properties_from_keyval(OBJECT(current_machine), default_opts, 2108 false, &error_abort); 2109 qobject_unref(default_opts); 2110 } 2111 } 2112 2113 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) 2114 { 2115 GlobalProperty *g; 2116 2117 g = g_malloc0(sizeof(*g)); 2118 g->driver = qemu_opt_get(opts, "driver"); 2119 g->property = qemu_opt_get(opts, "property"); 2120 g->value = qemu_opt_get(opts, "value"); 2121 qdev_prop_register_global(g); 2122 return 0; 2123 } 2124 2125 /* 2126 * Return whether configuration group @group is stored in QemuOpts, or 2127 * recorded as one or more QDicts by qemu_record_config_group. 2128 */ 2129 static bool is_qemuopts_group(const char *group) 2130 { 2131 if (g_str_equal(group, "object") || 2132 g_str_equal(group, "audiodev") || 2133 g_str_equal(group, "machine") || 2134 g_str_equal(group, "smp-opts") || 2135 g_str_equal(group, "boot-opts")) { 2136 return false; 2137 } 2138 return true; 2139 } 2140 2141 static void qemu_record_config_group(const char *group, QDict *dict, 2142 bool from_json, Error **errp) 2143 { 2144 if (g_str_equal(group, "object")) { 2145 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2146 object_option_add_visitor(v); 2147 visit_free(v); 2148 2149 } else if (g_str_equal(group, "audiodev")) { 2150 Audiodev *dev = NULL; 2151 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2152 if (visit_type_Audiodev(v, NULL, &dev, errp)) { 2153 audio_define(dev); 2154 } 2155 visit_free(v); 2156 2157 } else if (g_str_equal(group, "machine")) { 2158 /* 2159 * Cannot merge string-valued and type-safe dictionaries, so JSON 2160 * is not accepted yet for -M. 2161 */ 2162 assert(!from_json); 2163 keyval_merge(machine_opts_dict, dict, errp); 2164 } else if (g_str_equal(group, "smp-opts")) { 2165 machine_merge_property("smp", dict, &error_fatal); 2166 } else if (g_str_equal(group, "boot-opts")) { 2167 machine_merge_property("boot", dict, &error_fatal); 2168 } else { 2169 abort(); 2170 } 2171 } 2172 2173 /* 2174 * Parse non-QemuOpts config file groups, pass the rest to 2175 * qemu_config_do_parse. 2176 */ 2177 static void qemu_parse_config_group(const char *group, QDict *qdict, 2178 void *opaque, Error **errp) 2179 { 2180 QObject *crumpled; 2181 if (is_qemuopts_group(group)) { 2182 qemu_config_do_parse(group, qdict, opaque, errp); 2183 return; 2184 } 2185 2186 crumpled = qdict_crumple(qdict, errp); 2187 if (!crumpled) { 2188 return; 2189 } 2190 switch (qobject_type(crumpled)) { 2191 case QTYPE_QDICT: 2192 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); 2193 break; 2194 case QTYPE_QLIST: 2195 error_setg(errp, "Lists cannot be at top level of a configuration section"); 2196 break; 2197 default: 2198 g_assert_not_reached(); 2199 } 2200 qobject_unref(crumpled); 2201 } 2202 2203 static void qemu_read_default_config_file(Error **errp) 2204 { 2205 ERRP_GUARD(); 2206 int ret; 2207 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); 2208 2209 ret = qemu_read_config_file(file, qemu_parse_config_group, errp); 2210 if (ret < 0) { 2211 if (ret == -ENOENT) { 2212 error_free(*errp); 2213 *errp = NULL; 2214 } 2215 } 2216 } 2217 2218 static void qemu_set_option(const char *str, Error **errp) 2219 { 2220 char group[64], id[64], arg[64]; 2221 QemuOptsList *list; 2222 QemuOpts *opts; 2223 int rc, offset; 2224 2225 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); 2226 if (rc < 3 || str[offset] != '=') { 2227 error_setg(errp, "can't parse: \"%s\"", str); 2228 return; 2229 } 2230 2231 if (!is_qemuopts_group(group)) { 2232 error_setg(errp, "-set is not supported with %s", group); 2233 } else { 2234 list = qemu_find_opts_err(group, errp); 2235 if (list) { 2236 opts = qemu_opts_find(list, id); 2237 if (!opts) { 2238 error_setg(errp, "there is no %s \"%s\" defined", group, id); 2239 return; 2240 } 2241 qemu_opt_set(opts, arg, str + offset + 1, errp); 2242 } 2243 } 2244 } 2245 2246 static void user_register_global_props(void) 2247 { 2248 qemu_opts_foreach(qemu_find_opts("global"), 2249 global_init_func, NULL, NULL); 2250 } 2251 2252 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) 2253 { 2254 icount_configure(opts, errp); 2255 return 0; 2256 } 2257 2258 static int accelerator_set_property(void *opaque, 2259 const char *name, const char *value, 2260 Error **errp) 2261 { 2262 return object_parse_property_opt(opaque, name, value, "accel", errp); 2263 } 2264 2265 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) 2266 { 2267 bool *p_init_failed = opaque; 2268 const char *acc = qemu_opt_get(opts, "accel"); 2269 AccelClass *ac = accel_find(acc); 2270 AccelState *accel; 2271 int ret; 2272 bool qtest_with_kvm; 2273 2274 if (!acc) { 2275 error_setg(errp, QERR_MISSING_PARAMETER, "accel"); 2276 goto bad; 2277 } 2278 2279 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; 2280 2281 if (!ac) { 2282 if (!qtest_with_kvm) { 2283 error_report("invalid accelerator %s", acc); 2284 } 2285 goto bad; 2286 } 2287 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); 2288 object_apply_compat_props(OBJECT(accel)); 2289 qemu_opt_foreach(opts, accelerator_set_property, 2290 accel, 2291 &error_fatal); 2292 /* 2293 * If legacy -singlestep option is set, honour it for TCG and 2294 * silently ignore for any other accelerator (which is how this 2295 * option has always behaved). 2296 */ 2297 if (opt_one_insn_per_tb) { 2298 /* 2299 * This will always succeed for TCG, and we want to ignore 2300 * the error from trying to set a nonexistent property 2301 * on any other accelerator. 2302 */ 2303 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL); 2304 } 2305 ret = accel_init_machine(accel, current_machine); 2306 if (ret < 0) { 2307 if (!qtest_with_kvm || ret != -ENOENT) { 2308 error_report("failed to initialize %s: %s", acc, strerror(-ret)); 2309 } 2310 goto bad; 2311 } 2312 2313 return 1; 2314 2315 bad: 2316 *p_init_failed = true; 2317 return 0; 2318 } 2319 2320 static void configure_accelerators(const char *progname) 2321 { 2322 bool init_failed = false; 2323 2324 qemu_opts_foreach(qemu_find_opts("icount"), 2325 do_configure_icount, NULL, &error_fatal); 2326 2327 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { 2328 char **accel_list, **tmp; 2329 2330 if (accelerators == NULL) { 2331 /* Select the default accelerator */ 2332 bool have_tcg = accel_find("tcg"); 2333 bool have_kvm = accel_find("kvm"); 2334 2335 if (have_tcg && have_kvm) { 2336 if (g_str_has_suffix(progname, "kvm")) { 2337 /* If the program name ends with "kvm", we prefer KVM */ 2338 accelerators = "kvm:tcg"; 2339 } else { 2340 accelerators = "tcg:kvm"; 2341 } 2342 } else if (have_kvm) { 2343 accelerators = "kvm"; 2344 } else if (have_tcg) { 2345 accelerators = "tcg"; 2346 } else { 2347 error_report("No accelerator selected and" 2348 " no default accelerator available"); 2349 exit(1); 2350 } 2351 } 2352 accel_list = g_strsplit(accelerators, ":", 0); 2353 2354 for (tmp = accel_list; *tmp; tmp++) { 2355 /* 2356 * Filter invalid accelerators here, to prevent obscenities 2357 * such as "-machine accel=tcg,,thread=single". 2358 */ 2359 if (accel_find(*tmp)) { 2360 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); 2361 } else { 2362 init_failed = true; 2363 error_report("invalid accelerator %s", *tmp); 2364 } 2365 } 2366 g_strfreev(accel_list); 2367 } else { 2368 if (accelerators != NULL) { 2369 error_report("The -accel and \"-machine accel=\" options are incompatible"); 2370 exit(1); 2371 } 2372 } 2373 2374 if (!qemu_opts_foreach(qemu_find_opts("accel"), 2375 do_configure_accelerator, &init_failed, &error_fatal)) { 2376 if (!init_failed) { 2377 error_report("no accelerator found"); 2378 } 2379 exit(1); 2380 } 2381 2382 if (init_failed && !qtest_chrdev) { 2383 error_report("falling back to %s", current_accel_name()); 2384 } 2385 2386 if (icount_enabled() && !tcg_enabled()) { 2387 error_report("-icount is not allowed with hardware virtualization"); 2388 exit(1); 2389 } 2390 } 2391 2392 static void qemu_validate_options(const QDict *machine_opts) 2393 { 2394 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); 2395 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); 2396 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); 2397 2398 if (kernel_filename == NULL) { 2399 if (kernel_cmdline != NULL) { 2400 error_report("-append only allowed with -kernel option"); 2401 exit(1); 2402 } 2403 2404 if (initrd_filename != NULL) { 2405 error_report("-initrd only allowed with -kernel option"); 2406 exit(1); 2407 } 2408 } 2409 2410 if (loadvm && preconfig_requested) { 2411 error_report("'preconfig' and 'loadvm' options are " 2412 "mutually exclusive"); 2413 exit(EXIT_FAILURE); 2414 } 2415 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { 2416 error_report("'preconfig' supports '-incoming defer' only"); 2417 exit(EXIT_FAILURE); 2418 } 2419 2420 #ifdef CONFIG_CURSES 2421 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { 2422 error_report("curses display cannot be used with -daemonize"); 2423 exit(1); 2424 } 2425 #endif 2426 } 2427 2428 static void qemu_process_sugar_options(void) 2429 { 2430 if (mem_prealloc) { 2431 QObject *smp = qdict_get(machine_opts_dict, "smp"); 2432 if (smp && qobject_type(smp) == QTYPE_QDICT) { 2433 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); 2434 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { 2435 const char *val = qstring_get_str(qobject_to(QString, cpus)); 2436 object_register_sugar_prop("memory-backend", "prealloc-threads", 2437 val, false); 2438 } 2439 } 2440 object_register_sugar_prop("memory-backend", "prealloc", "on", false); 2441 } 2442 } 2443 2444 /* -action processing */ 2445 2446 /* 2447 * Process all the -action parameters parsed from cmdline. 2448 */ 2449 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) 2450 { 2451 Error *local_err = NULL; 2452 QDict *qdict = qemu_opts_to_qdict(opts, NULL); 2453 QObject *ret = NULL; 2454 qmp_marshal_set_action(qdict, &ret, &local_err); 2455 qobject_unref(ret); 2456 qobject_unref(qdict); 2457 if (local_err) { 2458 error_propagate(errp, local_err); 2459 return 1; 2460 } 2461 return 0; 2462 } 2463 2464 static void qemu_process_early_options(void) 2465 { 2466 qemu_opts_foreach(qemu_find_opts("name"), 2467 parse_name, NULL, &error_fatal); 2468 2469 object_option_foreach_add(object_create_pre_sandbox); 2470 2471 #ifdef CONFIG_SECCOMP 2472 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); 2473 if (olist) { 2474 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); 2475 } 2476 #endif 2477 2478 if (qemu_opts_foreach(qemu_find_opts("action"), 2479 process_runstate_actions, NULL, &error_fatal)) { 2480 exit(1); 2481 } 2482 2483 #ifndef _WIN32 2484 qemu_opts_foreach(qemu_find_opts("add-fd"), 2485 parse_add_fd, NULL, &error_fatal); 2486 2487 qemu_opts_foreach(qemu_find_opts("add-fd"), 2488 cleanup_add_fd, NULL, &error_fatal); 2489 #endif 2490 2491 /* Open the logfile at this point and set the log mask if necessary. */ 2492 { 2493 int mask = 0; 2494 if (log_mask) { 2495 mask = qemu_str_to_log_mask(log_mask); 2496 if (!mask) { 2497 qemu_print_log_usage(stdout); 2498 exit(1); 2499 } 2500 } 2501 qemu_set_log_filename_flags(log_file, mask, &error_fatal); 2502 } 2503 2504 qemu_add_default_firmwarepath(); 2505 } 2506 2507 static void qemu_process_help_options(void) 2508 { 2509 /* 2510 * Check for -cpu help and -device help before we call select_machine(), 2511 * which will return an error if the architecture has no default machine 2512 * type and the user did not specify one, so that the user doesn't need 2513 * to say '-cpu help -machine something'. 2514 */ 2515 if (cpu_option && is_help_option(cpu_option)) { 2516 list_cpus(); 2517 exit(0); 2518 } 2519 2520 if (qemu_opts_foreach(qemu_find_opts("device"), 2521 device_help_func, NULL, NULL)) { 2522 exit(0); 2523 } 2524 2525 /* -L help lists the data directories and exits. */ 2526 if (list_data_dirs) { 2527 qemu_list_data_dirs(); 2528 exit(0); 2529 } 2530 } 2531 2532 static void qemu_maybe_daemonize(const char *pid_file) 2533 { 2534 Error *err = NULL; 2535 2536 os_daemonize(); 2537 rcu_disable_atfork(); 2538 2539 if (pid_file) { 2540 char *pid_file_realpath = NULL; 2541 2542 if (!qemu_write_pidfile(pid_file, &err)) { 2543 error_reportf_err(err, "cannot create PID file: "); 2544 exit(1); 2545 } 2546 2547 pid_file_realpath = g_malloc0(PATH_MAX); 2548 if (!realpath(pid_file, pid_file_realpath)) { 2549 if (errno != ENOENT) { 2550 warn_report("not removing PID file on exit: cannot resolve PID " 2551 "file path: %s: %s", pid_file, strerror(errno)); 2552 } 2553 return; 2554 } 2555 2556 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { 2557 .notifier = { 2558 .notify = qemu_unlink_pidfile, 2559 }, 2560 .pid_file_realpath = pid_file_realpath, 2561 }; 2562 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); 2563 } 2564 } 2565 2566 static void qemu_init_displays(void) 2567 { 2568 DisplayState *ds; 2569 2570 /* init local displays */ 2571 ds = init_displaystate(); 2572 qemu_display_init(ds, &dpy); 2573 2574 /* must be after terminal init, SDL library changes signal handlers */ 2575 os_setup_signal_handling(); 2576 2577 /* init remote displays */ 2578 #ifdef CONFIG_VNC 2579 qemu_opts_foreach(qemu_find_opts("vnc"), 2580 vnc_init_func, NULL, &error_fatal); 2581 #endif 2582 2583 if (using_spice) { 2584 qemu_spice.display_init(); 2585 } 2586 } 2587 2588 static void qemu_init_board(void) 2589 { 2590 /* process plugin before CPUs are created, but once -smp has been parsed */ 2591 qemu_plugin_load_list(&plugin_list, &error_fatal); 2592 2593 /* From here on we enter MACHINE_PHASE_INITIALIZED. */ 2594 machine_run_board_init(current_machine, mem_path, &error_fatal); 2595 2596 drive_check_orphaned(); 2597 2598 realtime_init(); 2599 } 2600 2601 static void qemu_create_cli_devices(void) 2602 { 2603 DeviceOption *opt; 2604 2605 soundhw_init(); 2606 2607 qemu_opts_foreach(qemu_find_opts("fw_cfg"), 2608 parse_fw_cfg, fw_cfg_find(), &error_fatal); 2609 2610 /* init USB devices */ 2611 if (machine_usb(current_machine)) { 2612 if (foreach_device_config(DEV_USB, usb_parse) < 0) 2613 exit(1); 2614 } 2615 2616 /* init generic devices */ 2617 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); 2618 qemu_opts_foreach(qemu_find_opts("device"), 2619 device_init_func, NULL, &error_fatal); 2620 QTAILQ_FOREACH(opt, &device_opts, next) { 2621 DeviceState *dev; 2622 loc_push_restore(&opt->loc); 2623 /* 2624 * TODO Eventually we should call qmp_device_add() here to make sure it 2625 * behaves the same, but QMP still has to accept incorrectly typed 2626 * options until libvirt is fixed and we want to be strict on the CLI 2627 * from the start, so call qdev_device_add_from_qdict() directly for 2628 * now. 2629 */ 2630 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal); 2631 object_unref(OBJECT(dev)); 2632 loc_pop(&opt->loc); 2633 } 2634 rom_reset_order_override(); 2635 } 2636 2637 static void qemu_machine_creation_done(void) 2638 { 2639 MachineState *machine = MACHINE(qdev_get_machine()); 2640 2641 /* Did we create any drives that we failed to create a device for? */ 2642 drive_check_orphaned(); 2643 2644 /* Don't warn about the default network setup that you get if 2645 * no command line -net or -netdev options are specified. There 2646 * are two cases that we would otherwise complain about: 2647 * (1) board doesn't support a NIC but the implicit "-net nic" 2648 * requested one 2649 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" 2650 * sets up a nic that isn't connected to anything. 2651 */ 2652 if (!default_net && (!qtest_enabled() || has_defaults)) { 2653 net_check_clients(); 2654 } 2655 2656 qdev_prop_check_globals(); 2657 2658 qdev_machine_creation_done(); 2659 2660 if (machine->cgs) { 2661 /* 2662 * Verify that Confidential Guest Support has actually been initialized 2663 */ 2664 assert(machine->cgs->ready); 2665 } 2666 2667 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { 2668 exit(1); 2669 } 2670 if (!vga_interface_created && !default_vga && 2671 vga_interface_type != VGA_NONE) { 2672 warn_report("A -vga option was passed but this machine " 2673 "type does not use that option; " 2674 "No VGA device has been created"); 2675 } 2676 } 2677 2678 void qmp_x_exit_preconfig(Error **errp) 2679 { 2680 if (phase_check(PHASE_MACHINE_INITIALIZED)) { 2681 error_setg(errp, "The command is permitted only before machine initialization"); 2682 return; 2683 } 2684 2685 qemu_init_board(); 2686 qemu_create_cli_devices(); 2687 qemu_machine_creation_done(); 2688 2689 if (loadvm) { 2690 load_snapshot(loadvm, NULL, false, NULL, &error_fatal); 2691 } 2692 if (replay_mode != REPLAY_MODE_NONE) { 2693 replay_vmstate_init(); 2694 } 2695 2696 if (incoming) { 2697 Error *local_err = NULL; 2698 if (strcmp(incoming, "defer") != 0) { 2699 qmp_migrate_incoming(incoming, &local_err); 2700 if (local_err) { 2701 error_reportf_err(local_err, "-incoming %s: ", incoming); 2702 exit(1); 2703 } 2704 } 2705 } else if (autostart) { 2706 qmp_cont(NULL); 2707 } 2708 } 2709 2710 void qemu_init(int argc, char **argv) 2711 { 2712 QemuOpts *opts; 2713 QemuOpts *icount_opts = NULL, *accel_opts = NULL; 2714 QemuOptsList *olist; 2715 int optind; 2716 const char *optarg; 2717 MachineClass *machine_class; 2718 bool userconfig = true; 2719 FILE *vmstate_dump_file = NULL; 2720 2721 qemu_add_opts(&qemu_drive_opts); 2722 qemu_add_drive_opts(&qemu_legacy_drive_opts); 2723 qemu_add_drive_opts(&qemu_common_drive_opts); 2724 qemu_add_drive_opts(&qemu_drive_opts); 2725 qemu_add_drive_opts(&bdrv_runtime_opts); 2726 qemu_add_opts(&qemu_chardev_opts); 2727 qemu_add_opts(&qemu_device_opts); 2728 qemu_add_opts(&qemu_netdev_opts); 2729 qemu_add_opts(&qemu_nic_opts); 2730 qemu_add_opts(&qemu_net_opts); 2731 qemu_add_opts(&qemu_rtc_opts); 2732 qemu_add_opts(&qemu_global_opts); 2733 qemu_add_opts(&qemu_mon_opts); 2734 qemu_add_opts(&qemu_trace_opts); 2735 qemu_plugin_add_opts(); 2736 qemu_add_opts(&qemu_option_rom_opts); 2737 qemu_add_opts(&qemu_accel_opts); 2738 qemu_add_opts(&qemu_mem_opts); 2739 qemu_add_opts(&qemu_smp_opts); 2740 qemu_add_opts(&qemu_boot_opts); 2741 qemu_add_opts(&qemu_add_fd_opts); 2742 qemu_add_opts(&qemu_object_opts); 2743 qemu_add_opts(&qemu_tpmdev_opts); 2744 qemu_add_opts(&qemu_overcommit_opts); 2745 qemu_add_opts(&qemu_msg_opts); 2746 qemu_add_opts(&qemu_name_opts); 2747 qemu_add_opts(&qemu_numa_opts); 2748 qemu_add_opts(&qemu_icount_opts); 2749 qemu_add_opts(&qemu_semihosting_config_opts); 2750 qemu_add_opts(&qemu_fw_cfg_opts); 2751 qemu_add_opts(&qemu_action_opts); 2752 qemu_add_run_with_opts(); 2753 module_call_init(MODULE_INIT_OPTS); 2754 2755 error_init(argv[0]); 2756 qemu_init_exec_dir(argv[0]); 2757 2758 qemu_init_arch_modules(); 2759 2760 qemu_init_subsystems(); 2761 2762 /* first pass of option parsing */ 2763 optind = 1; 2764 while (optind < argc) { 2765 if (argv[optind][0] != '-') { 2766 /* disk image */ 2767 optind++; 2768 } else { 2769 const QEMUOption *popt; 2770 2771 popt = lookup_opt(argc, argv, &optarg, &optind); 2772 switch (popt->index) { 2773 case QEMU_OPTION_nouserconfig: 2774 userconfig = false; 2775 break; 2776 } 2777 } 2778 } 2779 2780 machine_opts_dict = qdict_new(); 2781 if (userconfig) { 2782 qemu_read_default_config_file(&error_fatal); 2783 } 2784 2785 /* second pass of option parsing */ 2786 optind = 1; 2787 for(;;) { 2788 if (optind >= argc) 2789 break; 2790 if (argv[optind][0] != '-') { 2791 loc_set_cmdline(argv, optind, 1); 2792 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); 2793 } else { 2794 const QEMUOption *popt; 2795 2796 popt = lookup_opt(argc, argv, &optarg, &optind); 2797 if (!(popt->arch_mask & arch_type)) { 2798 error_report("Option not supported for this target"); 2799 exit(1); 2800 } 2801 switch(popt->index) { 2802 case QEMU_OPTION_cpu: 2803 /* hw initialization will check this */ 2804 cpu_option = optarg; 2805 break; 2806 case QEMU_OPTION_hda: 2807 case QEMU_OPTION_hdb: 2808 case QEMU_OPTION_hdc: 2809 case QEMU_OPTION_hdd: 2810 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, 2811 HD_OPTS); 2812 break; 2813 case QEMU_OPTION_blockdev: 2814 { 2815 Visitor *v; 2816 BlockdevOptionsQueueEntry *bdo; 2817 2818 v = qobject_input_visitor_new_str(optarg, "driver", 2819 &error_fatal); 2820 2821 bdo = g_new(BlockdevOptionsQueueEntry, 1); 2822 visit_type_BlockdevOptions(v, NULL, &bdo->bdo, 2823 &error_fatal); 2824 visit_free(v); 2825 loc_save(&bdo->loc); 2826 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); 2827 break; 2828 } 2829 case QEMU_OPTION_drive: 2830 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), 2831 optarg, false); 2832 if (opts == NULL) { 2833 exit(1); 2834 } 2835 break; 2836 case QEMU_OPTION_set: 2837 qemu_set_option(optarg, &error_fatal); 2838 break; 2839 case QEMU_OPTION_global: 2840 if (qemu_global_option(optarg) != 0) 2841 exit(1); 2842 break; 2843 case QEMU_OPTION_mtdblock: 2844 drive_add(IF_MTD, -1, optarg, MTD_OPTS); 2845 break; 2846 case QEMU_OPTION_sd: 2847 drive_add(IF_SD, -1, optarg, SD_OPTS); 2848 break; 2849 case QEMU_OPTION_pflash: 2850 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); 2851 break; 2852 case QEMU_OPTION_snapshot: 2853 snapshot = 1; 2854 replay_add_blocker("-snapshot"); 2855 break; 2856 case QEMU_OPTION_numa: 2857 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), 2858 optarg, true); 2859 if (!opts) { 2860 exit(1); 2861 } 2862 break; 2863 case QEMU_OPTION_display: 2864 parse_display(optarg); 2865 break; 2866 case QEMU_OPTION_nographic: 2867 qdict_put_str(machine_opts_dict, "graphics", "off"); 2868 nographic = true; 2869 dpy.type = DISPLAY_TYPE_NONE; 2870 break; 2871 case QEMU_OPTION_portrait: 2872 graphic_rotate = 90; 2873 break; 2874 case QEMU_OPTION_rotate: 2875 graphic_rotate = strtol(optarg, (char **) &optarg, 10); 2876 if (graphic_rotate != 0 && graphic_rotate != 90 && 2877 graphic_rotate != 180 && graphic_rotate != 270) { 2878 error_report("only 90, 180, 270 deg rotation is available"); 2879 exit(1); 2880 } 2881 break; 2882 case QEMU_OPTION_kernel: 2883 qdict_put_str(machine_opts_dict, "kernel", optarg); 2884 break; 2885 case QEMU_OPTION_initrd: 2886 qdict_put_str(machine_opts_dict, "initrd", optarg); 2887 break; 2888 case QEMU_OPTION_append: 2889 qdict_put_str(machine_opts_dict, "append", optarg); 2890 break; 2891 case QEMU_OPTION_dtb: 2892 qdict_put_str(machine_opts_dict, "dtb", optarg); 2893 break; 2894 case QEMU_OPTION_cdrom: 2895 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); 2896 break; 2897 case QEMU_OPTION_boot: 2898 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); 2899 break; 2900 case QEMU_OPTION_fda: 2901 case QEMU_OPTION_fdb: 2902 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, 2903 optarg, FD_OPTS); 2904 break; 2905 case QEMU_OPTION_no_fd_bootchk: 2906 fd_bootchk = 0; 2907 break; 2908 case QEMU_OPTION_netdev: 2909 default_net = 0; 2910 if (netdev_is_modern(optarg)) { 2911 netdev_parse_modern(optarg); 2912 } else { 2913 net_client_parse(qemu_find_opts("netdev"), optarg); 2914 } 2915 break; 2916 case QEMU_OPTION_nic: 2917 default_net = 0; 2918 net_client_parse(qemu_find_opts("nic"), optarg); 2919 break; 2920 case QEMU_OPTION_net: 2921 default_net = 0; 2922 net_client_parse(qemu_find_opts("net"), optarg); 2923 break; 2924 #ifdef CONFIG_LIBISCSI 2925 case QEMU_OPTION_iscsi: 2926 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), 2927 optarg, false); 2928 if (!opts) { 2929 exit(1); 2930 } 2931 break; 2932 #endif 2933 case QEMU_OPTION_audiodev: 2934 default_audio = 0; 2935 audio_parse_option(optarg); 2936 break; 2937 case QEMU_OPTION_audio: { 2938 bool help; 2939 char *model = NULL; 2940 Audiodev *dev = NULL; 2941 Visitor *v; 2942 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); 2943 default_audio = 0; 2944 if (help || (qdict_haskey(dict, "driver") && 2945 is_help_option(qdict_get_str(dict, "driver")))) { 2946 audio_help(); 2947 exit(EXIT_SUCCESS); 2948 } 2949 if (!qdict_haskey(dict, "id")) { 2950 qdict_put_str(dict, "id", "audiodev0"); 2951 } 2952 if (qdict_haskey(dict, "model")) { 2953 model = g_strdup(qdict_get_str(dict, "model")); 2954 qdict_del(dict, "model"); 2955 if (is_help_option(model)) { 2956 show_valid_soundhw(); 2957 exit(0); 2958 } 2959 } 2960 v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2961 qobject_unref(dict); 2962 visit_type_Audiodev(v, NULL, &dev, &error_fatal); 2963 visit_free(v); 2964 if (model) { 2965 audio_define(dev); 2966 select_soundhw(model, dev->id); 2967 g_free(model); 2968 } else { 2969 audio_define_default(dev, &error_fatal); 2970 } 2971 break; 2972 } 2973 case QEMU_OPTION_h: 2974 help(0); 2975 break; 2976 case QEMU_OPTION_version: 2977 version(); 2978 exit(0); 2979 break; 2980 case QEMU_OPTION_m: 2981 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); 2982 if (opts == NULL) { 2983 exit(1); 2984 } 2985 break; 2986 #ifdef CONFIG_TPM 2987 case QEMU_OPTION_tpmdev: 2988 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { 2989 exit(1); 2990 } 2991 break; 2992 #endif 2993 case QEMU_OPTION_mempath: 2994 mem_path = optarg; 2995 break; 2996 case QEMU_OPTION_mem_prealloc: 2997 mem_prealloc = 1; 2998 break; 2999 case QEMU_OPTION_d: 3000 log_mask = optarg; 3001 break; 3002 case QEMU_OPTION_D: 3003 log_file = optarg; 3004 break; 3005 case QEMU_OPTION_DFILTER: 3006 qemu_set_dfilter_ranges(optarg, &error_fatal); 3007 break; 3008 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) 3009 case QEMU_OPTION_perfmap: 3010 perf_enable_perfmap(); 3011 break; 3012 case QEMU_OPTION_jitdump: 3013 perf_enable_jitdump(); 3014 break; 3015 #endif 3016 case QEMU_OPTION_seed: 3017 qemu_guest_random_seed_main(optarg, &error_fatal); 3018 break; 3019 case QEMU_OPTION_s: 3020 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); 3021 break; 3022 case QEMU_OPTION_gdb: 3023 add_device_config(DEV_GDB, optarg); 3024 break; 3025 case QEMU_OPTION_L: 3026 if (is_help_option(optarg)) { 3027 list_data_dirs = true; 3028 } else { 3029 qemu_add_data_dir(g_strdup(optarg)); 3030 } 3031 break; 3032 case QEMU_OPTION_bios: 3033 qdict_put_str(machine_opts_dict, "firmware", optarg); 3034 break; 3035 case QEMU_OPTION_singlestep: 3036 opt_one_insn_per_tb = true; 3037 break; 3038 case QEMU_OPTION_S: 3039 autostart = 0; 3040 break; 3041 case QEMU_OPTION_k: 3042 keyboard_layout = optarg; 3043 break; 3044 case QEMU_OPTION_vga: 3045 vga_model = optarg; 3046 default_vga = 0; 3047 break; 3048 case QEMU_OPTION_g: 3049 { 3050 const char *p; 3051 int w, h, depth; 3052 p = optarg; 3053 w = strtol(p, (char **)&p, 10); 3054 if (w <= 0) { 3055 graphic_error: 3056 error_report("invalid resolution or depth"); 3057 exit(1); 3058 } 3059 if (*p != 'x') 3060 goto graphic_error; 3061 p++; 3062 h = strtol(p, (char **)&p, 10); 3063 if (h <= 0) 3064 goto graphic_error; 3065 if (*p == 'x') { 3066 p++; 3067 depth = strtol(p, (char **)&p, 10); 3068 if (depth != 1 && depth != 2 && depth != 4 && 3069 depth != 8 && depth != 15 && depth != 16 && 3070 depth != 24 && depth != 32) 3071 goto graphic_error; 3072 } else if (*p == '\0') { 3073 depth = graphic_depth; 3074 } else { 3075 goto graphic_error; 3076 } 3077 3078 graphic_width = w; 3079 graphic_height = h; 3080 graphic_depth = depth; 3081 } 3082 break; 3083 case QEMU_OPTION_echr: 3084 { 3085 char *r; 3086 term_escape_char = strtol(optarg, &r, 0); 3087 if (r == optarg) 3088 printf("Bad argument to echr\n"); 3089 break; 3090 } 3091 case QEMU_OPTION_monitor: 3092 default_monitor = 0; 3093 if (strncmp(optarg, "none", 4)) { 3094 monitor_parse(optarg, "readline", false); 3095 } 3096 break; 3097 case QEMU_OPTION_qmp: 3098 monitor_parse(optarg, "control", false); 3099 default_monitor = 0; 3100 break; 3101 case QEMU_OPTION_qmp_pretty: 3102 monitor_parse(optarg, "control", true); 3103 default_monitor = 0; 3104 break; 3105 case QEMU_OPTION_mon: 3106 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, 3107 true); 3108 if (!opts) { 3109 exit(1); 3110 } 3111 default_monitor = 0; 3112 break; 3113 case QEMU_OPTION_chardev: 3114 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), 3115 optarg, true); 3116 if (!opts) { 3117 exit(1); 3118 } 3119 break; 3120 case QEMU_OPTION_fsdev: 3121 olist = qemu_find_opts("fsdev"); 3122 if (!olist) { 3123 error_report("fsdev support is disabled"); 3124 exit(1); 3125 } 3126 opts = qemu_opts_parse_noisily(olist, optarg, true); 3127 if (!opts) { 3128 exit(1); 3129 } 3130 break; 3131 case QEMU_OPTION_virtfs: { 3132 QemuOpts *fsdev; 3133 QemuOpts *device; 3134 const char *writeout, *sock_fd, *socket, *path, *security_model, 3135 *multidevs; 3136 3137 olist = qemu_find_opts("virtfs"); 3138 if (!olist) { 3139 error_report("virtfs support is disabled"); 3140 exit(1); 3141 } 3142 opts = qemu_opts_parse_noisily(olist, optarg, true); 3143 if (!opts) { 3144 exit(1); 3145 } 3146 3147 if (qemu_opt_get(opts, "fsdriver") == NULL || 3148 qemu_opt_get(opts, "mount_tag") == NULL) { 3149 error_report("Usage: -virtfs fsdriver,mount_tag=tag"); 3150 exit(1); 3151 } 3152 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), 3153 qemu_opts_id(opts) ?: 3154 qemu_opt_get(opts, "mount_tag"), 3155 1, NULL); 3156 if (!fsdev) { 3157 error_report("duplicate or invalid fsdev id: %s", 3158 qemu_opt_get(opts, "mount_tag")); 3159 exit(1); 3160 } 3161 3162 writeout = qemu_opt_get(opts, "writeout"); 3163 if (writeout) { 3164 #ifdef CONFIG_SYNC_FILE_RANGE 3165 qemu_opt_set(fsdev, "writeout", writeout, &error_abort); 3166 #else 3167 error_report("writeout=immediate not supported " 3168 "on this platform"); 3169 exit(1); 3170 #endif 3171 } 3172 qemu_opt_set(fsdev, "fsdriver", 3173 qemu_opt_get(opts, "fsdriver"), &error_abort); 3174 path = qemu_opt_get(opts, "path"); 3175 if (path) { 3176 qemu_opt_set(fsdev, "path", path, &error_abort); 3177 } 3178 security_model = qemu_opt_get(opts, "security_model"); 3179 if (security_model) { 3180 qemu_opt_set(fsdev, "security_model", security_model, 3181 &error_abort); 3182 } 3183 socket = qemu_opt_get(opts, "socket"); 3184 if (socket) { 3185 qemu_opt_set(fsdev, "socket", socket, &error_abort); 3186 } 3187 sock_fd = qemu_opt_get(opts, "sock_fd"); 3188 if (sock_fd) { 3189 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); 3190 } 3191 3192 qemu_opt_set_bool(fsdev, "readonly", 3193 qemu_opt_get_bool(opts, "readonly", 0), 3194 &error_abort); 3195 multidevs = qemu_opt_get(opts, "multidevs"); 3196 if (multidevs) { 3197 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); 3198 } 3199 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, 3200 &error_abort); 3201 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); 3202 qemu_opt_set(device, "fsdev", 3203 qemu_opts_id(fsdev), &error_abort); 3204 qemu_opt_set(device, "mount_tag", 3205 qemu_opt_get(opts, "mount_tag"), &error_abort); 3206 break; 3207 } 3208 case QEMU_OPTION_serial: 3209 add_device_config(DEV_SERIAL, optarg); 3210 default_serial = 0; 3211 if (strncmp(optarg, "mon:", 4) == 0) { 3212 default_monitor = 0; 3213 } 3214 break; 3215 case QEMU_OPTION_action: 3216 olist = qemu_find_opts("action"); 3217 if (!qemu_opts_parse_noisily(olist, optarg, false)) { 3218 exit(1); 3219 } 3220 break; 3221 case QEMU_OPTION_watchdog_action: { 3222 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); 3223 qemu_opt_set(opts, "watchdog", optarg, &error_abort); 3224 break; 3225 } 3226 case QEMU_OPTION_parallel: 3227 add_device_config(DEV_PARALLEL, optarg); 3228 default_parallel = 0; 3229 if (strncmp(optarg, "mon:", 4) == 0) { 3230 default_monitor = 0; 3231 } 3232 break; 3233 case QEMU_OPTION_debugcon: 3234 add_device_config(DEV_DEBUGCON, optarg); 3235 break; 3236 case QEMU_OPTION_loadvm: 3237 loadvm = optarg; 3238 break; 3239 case QEMU_OPTION_full_screen: 3240 dpy.has_full_screen = true; 3241 dpy.full_screen = true; 3242 break; 3243 case QEMU_OPTION_pidfile: 3244 pid_file = optarg; 3245 break; 3246 case QEMU_OPTION_win2k_hack: 3247 win2k_install_hack = 1; 3248 break; 3249 case QEMU_OPTION_acpitable: 3250 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), 3251 optarg, true); 3252 if (!opts) { 3253 exit(1); 3254 } 3255 acpi_table_add(opts, &error_fatal); 3256 break; 3257 case QEMU_OPTION_smbios: 3258 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), 3259 optarg, false); 3260 if (!opts) { 3261 exit(1); 3262 } 3263 smbios_entry_add(opts, &error_fatal); 3264 break; 3265 case QEMU_OPTION_fwcfg: 3266 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), 3267 optarg, true); 3268 if (opts == NULL) { 3269 exit(1); 3270 } 3271 break; 3272 case QEMU_OPTION_preconfig: 3273 preconfig_requested = true; 3274 break; 3275 case QEMU_OPTION_enable_kvm: 3276 qdict_put_str(machine_opts_dict, "accel", "kvm"); 3277 break; 3278 case QEMU_OPTION_M: 3279 case QEMU_OPTION_machine: 3280 { 3281 bool help; 3282 3283 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); 3284 if (help) { 3285 machine_help_func(machine_opts_dict); 3286 exit(EXIT_SUCCESS); 3287 } 3288 break; 3289 } 3290 case QEMU_OPTION_accel: 3291 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), 3292 optarg, true); 3293 optarg = qemu_opt_get(accel_opts, "accel"); 3294 if (!optarg || is_help_option(optarg)) { 3295 printf("Accelerators supported in QEMU binary:\n"); 3296 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, 3297 false); 3298 for (el = accel_list; el; el = el->next) { 3299 gchar *typename = g_strdup(object_class_get_name( 3300 OBJECT_CLASS(el->data))); 3301 /* omit qtest which is used for tests only */ 3302 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && 3303 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { 3304 gchar **optname = g_strsplit(typename, 3305 ACCEL_CLASS_SUFFIX, 0); 3306 printf("%s\n", optname[0]); 3307 g_strfreev(optname); 3308 } 3309 g_free(typename); 3310 } 3311 g_slist_free(accel_list); 3312 exit(0); 3313 } 3314 break; 3315 case QEMU_OPTION_usb: 3316 qdict_put_str(machine_opts_dict, "usb", "on"); 3317 break; 3318 case QEMU_OPTION_usbdevice: 3319 qdict_put_str(machine_opts_dict, "usb", "on"); 3320 add_device_config(DEV_USB, optarg); 3321 break; 3322 case QEMU_OPTION_device: 3323 if (optarg[0] == '{') { 3324 QObject *obj = qobject_from_json(optarg, &error_fatal); 3325 DeviceOption *opt = g_new0(DeviceOption, 1); 3326 opt->opts = qobject_to(QDict, obj); 3327 loc_save(&opt->loc); 3328 assert(opt->opts != NULL); 3329 QTAILQ_INSERT_TAIL(&device_opts, opt, next); 3330 } else { 3331 if (!qemu_opts_parse_noisily(qemu_find_opts("device"), 3332 optarg, true)) { 3333 exit(1); 3334 } 3335 } 3336 break; 3337 case QEMU_OPTION_smp: 3338 machine_parse_property_opt(qemu_find_opts("smp-opts"), 3339 "smp", optarg); 3340 break; 3341 case QEMU_OPTION_vnc: 3342 vnc_parse(optarg); 3343 break; 3344 case QEMU_OPTION_no_acpi: 3345 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead"); 3346 qdict_put_str(machine_opts_dict, "acpi", "off"); 3347 break; 3348 case QEMU_OPTION_no_hpet: 3349 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead"); 3350 qdict_put_str(machine_opts_dict, "hpet", "off"); 3351 break; 3352 case QEMU_OPTION_no_reboot: 3353 olist = qemu_find_opts("action"); 3354 qemu_opts_parse_noisily(olist, "reboot=shutdown", false); 3355 break; 3356 case QEMU_OPTION_no_shutdown: 3357 olist = qemu_find_opts("action"); 3358 qemu_opts_parse_noisily(olist, "shutdown=pause", false); 3359 break; 3360 case QEMU_OPTION_uuid: 3361 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { 3362 error_report("failed to parse UUID string: wrong format"); 3363 exit(1); 3364 } 3365 qemu_uuid_set = true; 3366 break; 3367 case QEMU_OPTION_option_rom: 3368 if (nb_option_roms >= MAX_OPTION_ROMS) { 3369 error_report("too many option ROMs"); 3370 exit(1); 3371 } 3372 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), 3373 optarg, true); 3374 if (!opts) { 3375 exit(1); 3376 } 3377 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); 3378 option_rom[nb_option_roms].bootindex = 3379 qemu_opt_get_number(opts, "bootindex", -1); 3380 if (!option_rom[nb_option_roms].name) { 3381 error_report("Option ROM file is not specified"); 3382 exit(1); 3383 } 3384 nb_option_roms++; 3385 break; 3386 case QEMU_OPTION_semihosting: 3387 qemu_semihosting_enable(); 3388 break; 3389 case QEMU_OPTION_semihosting_config: 3390 if (qemu_semihosting_config_options(optarg) != 0) { 3391 exit(1); 3392 } 3393 break; 3394 case QEMU_OPTION_name: 3395 opts = qemu_opts_parse_noisily(qemu_find_opts("name"), 3396 optarg, true); 3397 if (!opts) { 3398 exit(1); 3399 } 3400 /* Capture guest name if -msg guest-name is used later */ 3401 error_guest_name = qemu_opt_get(opts, "guest"); 3402 break; 3403 case QEMU_OPTION_prom_env: 3404 if (nb_prom_envs >= MAX_PROM_ENVS) { 3405 error_report("too many prom variables"); 3406 exit(1); 3407 } 3408 prom_envs[nb_prom_envs] = optarg; 3409 nb_prom_envs++; 3410 break; 3411 case QEMU_OPTION_old_param: 3412 old_param = 1; 3413 break; 3414 case QEMU_OPTION_rtc: 3415 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, 3416 false); 3417 if (!opts) { 3418 exit(1); 3419 } 3420 break; 3421 case QEMU_OPTION_icount: 3422 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), 3423 optarg, true); 3424 if (!icount_opts) { 3425 exit(1); 3426 } 3427 break; 3428 case QEMU_OPTION_incoming: 3429 if (!incoming) { 3430 runstate_set(RUN_STATE_INMIGRATE); 3431 } 3432 incoming = optarg; 3433 break; 3434 case QEMU_OPTION_only_migratable: 3435 only_migratable = 1; 3436 break; 3437 case QEMU_OPTION_nodefaults: 3438 has_defaults = 0; 3439 break; 3440 case QEMU_OPTION_xen_domid: 3441 if (!(accel_find("xen")) && !(accel_find("kvm"))) { 3442 error_report("Option not supported for this target"); 3443 exit(1); 3444 } 3445 xen_domid = atoi(optarg); 3446 break; 3447 case QEMU_OPTION_xen_attach: 3448 if (!(accel_find("xen"))) { 3449 error_report("Option not supported for this target"); 3450 exit(1); 3451 } 3452 xen_mode = XEN_ATTACH; 3453 break; 3454 case QEMU_OPTION_xen_domid_restrict: 3455 if (!(accel_find("xen"))) { 3456 error_report("Option not supported for this target"); 3457 exit(1); 3458 } 3459 xen_domid_restrict = true; 3460 break; 3461 case QEMU_OPTION_trace: 3462 trace_opt_parse(optarg); 3463 break; 3464 case QEMU_OPTION_plugin: 3465 qemu_plugin_opt_parse(optarg, &plugin_list); 3466 break; 3467 case QEMU_OPTION_readconfig: 3468 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); 3469 break; 3470 #ifdef CONFIG_SPICE 3471 case QEMU_OPTION_spice: 3472 olist = qemu_find_opts_err("spice", NULL); 3473 if (!olist) { 3474 error_report("spice support is disabled"); 3475 exit(1); 3476 } 3477 opts = qemu_opts_parse_noisily(olist, optarg, false); 3478 if (!opts) { 3479 exit(1); 3480 } 3481 display_remote++; 3482 break; 3483 #endif 3484 case QEMU_OPTION_qtest: 3485 qtest_chrdev = optarg; 3486 break; 3487 case QEMU_OPTION_qtest_log: 3488 qtest_log = optarg; 3489 break; 3490 case QEMU_OPTION_sandbox: 3491 olist = qemu_find_opts("sandbox"); 3492 if (!olist) { 3493 #ifndef CONFIG_SECCOMP 3494 error_report("-sandbox support is not enabled " 3495 "in this QEMU binary"); 3496 #endif 3497 exit(1); 3498 } 3499 3500 opts = qemu_opts_parse_noisily(olist, optarg, true); 3501 if (!opts) { 3502 exit(1); 3503 } 3504 break; 3505 case QEMU_OPTION_add_fd: 3506 #ifndef _WIN32 3507 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), 3508 optarg, false); 3509 if (!opts) { 3510 exit(1); 3511 } 3512 #else 3513 error_report("File descriptor passing is disabled on this " 3514 "platform"); 3515 exit(1); 3516 #endif 3517 break; 3518 case QEMU_OPTION_object: 3519 object_option_parse(optarg); 3520 break; 3521 case QEMU_OPTION_overcommit: 3522 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), 3523 optarg, false); 3524 if (!opts) { 3525 exit(1); 3526 } 3527 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false); 3528 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false); 3529 break; 3530 case QEMU_OPTION_compat: 3531 { 3532 CompatPolicy *opts_policy; 3533 Visitor *v; 3534 3535 v = qobject_input_visitor_new_str(optarg, NULL, 3536 &error_fatal); 3537 3538 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); 3539 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); 3540 3541 qapi_free_CompatPolicy(opts_policy); 3542 visit_free(v); 3543 break; 3544 } 3545 case QEMU_OPTION_msg: 3546 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, 3547 false); 3548 if (!opts) { 3549 exit(1); 3550 } 3551 configure_msg(opts); 3552 break; 3553 case QEMU_OPTION_dump_vmstate: 3554 if (vmstate_dump_file) { 3555 error_report("only one '-dump-vmstate' " 3556 "option may be given"); 3557 exit(1); 3558 } 3559 vmstate_dump_file = fopen(optarg, "w"); 3560 if (vmstate_dump_file == NULL) { 3561 error_report("open %s: %s", optarg, strerror(errno)); 3562 exit(1); 3563 } 3564 break; 3565 case QEMU_OPTION_enable_sync_profile: 3566 qsp_enable(); 3567 break; 3568 case QEMU_OPTION_nouserconfig: 3569 /* Nothing to be parsed here. Especially, do not error out below. */ 3570 break; 3571 #if defined(CONFIG_POSIX) 3572 case QEMU_OPTION_runas: 3573 if (!os_set_runas(optarg)) { 3574 error_report("User \"%s\" doesn't exist" 3575 " (and is not <uid>:<gid>)", 3576 optarg); 3577 exit(1); 3578 } 3579 break; 3580 case QEMU_OPTION_chroot: 3581 warn_report("option is deprecated," 3582 " use '-run-with chroot=...' instead"); 3583 os_set_chroot(optarg); 3584 break; 3585 case QEMU_OPTION_daemonize: 3586 os_set_daemonize(true); 3587 break; 3588 #if defined(CONFIG_LINUX) 3589 /* deprecated */ 3590 case QEMU_OPTION_asyncteardown: 3591 init_async_teardown(); 3592 break; 3593 #endif 3594 case QEMU_OPTION_run_with: { 3595 const char *str; 3596 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), 3597 optarg, false); 3598 if (!opts) { 3599 exit(1); 3600 } 3601 #if defined(CONFIG_LINUX) 3602 if (qemu_opt_get_bool(opts, "async-teardown", false)) { 3603 init_async_teardown(); 3604 } 3605 #endif 3606 str = qemu_opt_get(opts, "chroot"); 3607 if (str) { 3608 os_set_chroot(str); 3609 } 3610 break; 3611 } 3612 #endif /* CONFIG_POSIX */ 3613 3614 default: 3615 error_report("Option not supported in this build"); 3616 exit(1); 3617 } 3618 } 3619 } 3620 /* 3621 * Clear error location left behind by the loop. 3622 * Best done right after the loop. Do not insert code here! 3623 */ 3624 loc_set_none(); 3625 3626 qemu_validate_options(machine_opts_dict); 3627 qemu_process_sugar_options(); 3628 3629 /* 3630 * These options affect everything else and should be processed 3631 * before daemonizing. 3632 */ 3633 qemu_process_early_options(); 3634 3635 qemu_process_help_options(); 3636 qemu_maybe_daemonize(pid_file); 3637 3638 /* 3639 * The trace backend must be initialized after daemonizing. 3640 * trace_init_backends() will call st_init(), which will create the 3641 * trace thread in the parent, and also register st_flush_trace_buffer() 3642 * in atexit(). This function will force the parent to wait for the 3643 * writeout thread to finish, which will not occur, and the parent 3644 * process will be left in the host. 3645 */ 3646 if (!trace_init_backends()) { 3647 exit(1); 3648 } 3649 trace_init_file(); 3650 3651 qemu_init_main_loop(&error_fatal); 3652 cpu_timers_init(); 3653 3654 user_register_global_props(); 3655 replay_configure(icount_opts); 3656 3657 configure_rtc(qemu_find_opts_singleton("rtc")); 3658 3659 /* Transfer QemuOpts options into machine options */ 3660 parse_memory_options(); 3661 3662 qemu_create_machine(machine_opts_dict); 3663 3664 suspend_mux_open(); 3665 3666 qemu_disable_default_devices(); 3667 qemu_create_default_devices(); 3668 qemu_create_early_backends(); 3669 3670 qemu_apply_legacy_machine_options(machine_opts_dict); 3671 qemu_apply_machine_options(machine_opts_dict); 3672 qobject_unref(machine_opts_dict); 3673 phase_advance(PHASE_MACHINE_CREATED); 3674 3675 /* 3676 * Note: uses machine properties such as kernel-irqchip, must run 3677 * after qemu_apply_machine_options. 3678 */ 3679 configure_accelerators(argv[0]); 3680 phase_advance(PHASE_ACCEL_CREATED); 3681 3682 /* 3683 * Beware, QOM objects created before this point miss global and 3684 * compat properties. 3685 * 3686 * Global properties get set up by qdev_prop_register_global(), 3687 * called from user_register_global_props(), and certain option 3688 * desugaring. Also in CPU feature desugaring (buried in 3689 * parse_cpu_option()), which happens below this point, but may 3690 * only target the CPU type, which can only be created after 3691 * parse_cpu_option() returned the type. 3692 * 3693 * Machine compat properties: object_set_machine_compat_props(). 3694 * Accelerator compat props: object_set_accelerator_compat_props(), 3695 * called from do_configure_accelerator(). 3696 */ 3697 3698 machine_class = MACHINE_GET_CLASS(current_machine); 3699 if (!qtest_enabled() && machine_class->deprecation_reason) { 3700 warn_report("Machine type '%s' is deprecated: %s", 3701 machine_class->name, machine_class->deprecation_reason); 3702 } 3703 3704 /* 3705 * Create backends before creating migration objects, so that it can 3706 * check against compatibilities on the backend memories (e.g. postcopy 3707 * over memory-backend-file objects). 3708 */ 3709 qemu_create_late_backends(); 3710 3711 /* 3712 * Note: creates a QOM object, must run only after global and 3713 * compat properties have been set up. 3714 */ 3715 migration_object_init(); 3716 3717 /* parse features once if machine provides default cpu_type */ 3718 current_machine->cpu_type = machine_class->default_cpu_type; 3719 if (cpu_option) { 3720 current_machine->cpu_type = parse_cpu_option(cpu_option); 3721 } 3722 /* NB: for machine none cpu_type could STILL be NULL here! */ 3723 3724 qemu_resolve_machine_memdev(); 3725 parse_numa_opts(current_machine); 3726 3727 if (vmstate_dump_file) { 3728 /* dump and exit */ 3729 module_load_qom_all(); 3730 dump_vmstate_json_to_file(vmstate_dump_file); 3731 exit(0); 3732 } 3733 3734 if (!preconfig_requested) { 3735 qmp_x_exit_preconfig(&error_fatal); 3736 } 3737 qemu_init_displays(); 3738 accel_setup_post(current_machine); 3739 os_setup_post(); 3740 resume_mux_open(); 3741 } 3742