1 /* 2 * QEMU System Emulator 3 * 4 * Copyright (c) 2003-2008 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #include "qemu/osdep.h" 26 #include "qemu/help-texts.h" 27 #include "qemu/datadir.h" 28 #include "qemu/units.h" 29 #include "exec/cpu-common.h" 30 #include "exec/page-vary.h" 31 #include "hw/qdev-properties.h" 32 #include "qapi/compat-policy.h" 33 #include "qapi/error.h" 34 #include "qapi/qmp/qdict.h" 35 #include "qapi/qmp/qstring.h" 36 #include "qapi/qmp/qjson.h" 37 #include "qemu-version.h" 38 #include "qemu/cutils.h" 39 #include "qemu/help_option.h" 40 #include "qemu/hw-version.h" 41 #include "qemu/uuid.h" 42 #include "sysemu/reset.h" 43 #include "sysemu/runstate.h" 44 #include "sysemu/runstate-action.h" 45 #include "sysemu/seccomp.h" 46 #include "sysemu/tcg.h" 47 #include "sysemu/xen.h" 48 49 #include "qemu/error-report.h" 50 #include "qemu/sockets.h" 51 #include "qemu/accel.h" 52 #include "qemu/async-teardown.h" 53 #include "hw/usb.h" 54 #include "hw/isa/isa.h" 55 #include "hw/scsi/scsi.h" 56 #include "hw/display/vga.h" 57 #include "hw/firmware/smbios.h" 58 #include "hw/acpi/acpi.h" 59 #include "hw/xen/xen.h" 60 #include "hw/loader.h" 61 #include "monitor/qdev.h" 62 #include "net/net.h" 63 #include "net/slirp.h" 64 #include "monitor/monitor.h" 65 #include "ui/console.h" 66 #include "ui/input.h" 67 #include "sysemu/sysemu.h" 68 #include "sysemu/numa.h" 69 #include "sysemu/hostmem.h" 70 #include "exec/gdbstub.h" 71 #include "qemu/timer.h" 72 #include "chardev/char.h" 73 #include "qemu/bitmap.h" 74 #include "qemu/log.h" 75 #include "sysemu/blockdev.h" 76 #include "hw/block/block.h" 77 #include "hw/i386/x86.h" 78 #include "hw/i386/pc.h" 79 #include "migration/misc.h" 80 #include "migration/snapshot.h" 81 #include "sysemu/tpm.h" 82 #include "sysemu/dma.h" 83 #include "hw/audio/soundhw.h" 84 #include "audio/audio.h" 85 #include "sysemu/cpus.h" 86 #include "sysemu/cpu-timers.h" 87 #include "migration/colo.h" 88 #include "migration/postcopy-ram.h" 89 #include "sysemu/kvm.h" 90 #include "qapi/qobject-input-visitor.h" 91 #include "qemu/option.h" 92 #include "qemu/config-file.h" 93 #include "qemu/main-loop.h" 94 #ifdef CONFIG_VIRTFS 95 #include "fsdev/qemu-fsdev.h" 96 #endif 97 #include "sysemu/qtest.h" 98 #ifdef CONFIG_TCG 99 #include "accel/tcg/perf.h" 100 #endif 101 102 #include "disas/disas.h" 103 104 #include "trace.h" 105 #include "trace/control.h" 106 #include "qemu/plugin.h" 107 #include "qemu/queue.h" 108 #include "sysemu/arch_init.h" 109 #include "exec/confidential-guest-support.h" 110 111 #include "ui/qemu-spice.h" 112 #include "qapi/string-input-visitor.h" 113 #include "qapi/opts-visitor.h" 114 #include "qapi/clone-visitor.h" 115 #include "qom/object_interfaces.h" 116 #include "semihosting/semihost.h" 117 #include "crypto/init.h" 118 #include "sysemu/replay.h" 119 #include "qapi/qapi-events-run-state.h" 120 #include "qapi/qapi-types-audio.h" 121 #include "qapi/qapi-visit-audio.h" 122 #include "qapi/qapi-visit-block-core.h" 123 #include "qapi/qapi-visit-compat.h" 124 #include "qapi/qapi-visit-machine.h" 125 #include "qapi/qapi-visit-ui.h" 126 #include "qapi/qapi-commands-block-core.h" 127 #include "qapi/qapi-commands-migration.h" 128 #include "qapi/qapi-commands-misc.h" 129 #include "qapi/qapi-visit-qom.h" 130 #include "qapi/qapi-commands-ui.h" 131 #include "block/qdict.h" 132 #include "qapi/qmp/qerror.h" 133 #include "sysemu/iothread.h" 134 #include "qemu/guest-random.h" 135 #include "qemu/keyval.h" 136 137 #define MAX_VIRTIO_CONSOLES 1 138 139 typedef struct BlockdevOptionsQueueEntry { 140 BlockdevOptions *bdo; 141 Location loc; 142 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry; 143 } BlockdevOptionsQueueEntry; 144 145 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue; 146 147 typedef struct ObjectOption { 148 ObjectOptions *opts; 149 QTAILQ_ENTRY(ObjectOption) next; 150 } ObjectOption; 151 152 typedef struct DeviceOption { 153 QDict *opts; 154 Location loc; 155 QTAILQ_ENTRY(DeviceOption) next; 156 } DeviceOption; 157 158 static const char *cpu_option; 159 static const char *mem_path; 160 static const char *incoming; 161 static const char *loadvm; 162 static const char *accelerators; 163 static bool have_custom_ram_size; 164 static const char *ram_memdev_id; 165 static QDict *machine_opts_dict; 166 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts); 167 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts); 168 static int display_remote; 169 static int snapshot; 170 static bool preconfig_requested; 171 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list); 172 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue); 173 static bool nographic = false; 174 static int mem_prealloc; /* force preallocation of physical target memory */ 175 static const char *vga_model = NULL; 176 static DisplayOptions dpy; 177 static int num_serial_hds; 178 static Chardev **serial_hds; 179 static const char *log_mask; 180 static const char *log_file; 181 static bool list_data_dirs; 182 static const char *qtest_chrdev; 183 static const char *qtest_log; 184 static bool opt_one_insn_per_tb; 185 186 static int has_defaults = 1; 187 static int default_audio = 1; 188 static int default_serial = 1; 189 static int default_parallel = 1; 190 static int default_monitor = 1; 191 static int default_floppy = 1; 192 static int default_cdrom = 1; 193 static int default_sdcard = 1; 194 static int default_vga = 1; 195 static int default_net = 1; 196 197 static struct { 198 const char *driver; 199 int *flag; 200 } default_list[] = { 201 { .driver = "isa-serial", .flag = &default_serial }, 202 { .driver = "isa-parallel", .flag = &default_parallel }, 203 { .driver = "isa-fdc", .flag = &default_floppy }, 204 { .driver = "floppy", .flag = &default_floppy }, 205 { .driver = "ide-cd", .flag = &default_cdrom }, 206 { .driver = "ide-hd", .flag = &default_cdrom }, 207 { .driver = "scsi-cd", .flag = &default_cdrom }, 208 { .driver = "scsi-hd", .flag = &default_cdrom }, 209 { .driver = "VGA", .flag = &default_vga }, 210 { .driver = "isa-vga", .flag = &default_vga }, 211 { .driver = "cirrus-vga", .flag = &default_vga }, 212 { .driver = "isa-cirrus-vga", .flag = &default_vga }, 213 { .driver = "vmware-svga", .flag = &default_vga }, 214 { .driver = "qxl-vga", .flag = &default_vga }, 215 { .driver = "virtio-vga", .flag = &default_vga }, 216 { .driver = "ati-vga", .flag = &default_vga }, 217 { .driver = "vhost-user-vga", .flag = &default_vga }, 218 { .driver = "virtio-vga-gl", .flag = &default_vga }, 219 { .driver = "virtio-vga-rutabaga", .flag = &default_vga }, 220 }; 221 222 static QemuOptsList qemu_rtc_opts = { 223 .name = "rtc", 224 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head), 225 .merge_lists = true, 226 .desc = { 227 { 228 .name = "base", 229 .type = QEMU_OPT_STRING, 230 },{ 231 .name = "clock", 232 .type = QEMU_OPT_STRING, 233 },{ 234 .name = "driftfix", 235 .type = QEMU_OPT_STRING, 236 }, 237 { /* end of list */ } 238 }, 239 }; 240 241 static QemuOptsList qemu_option_rom_opts = { 242 .name = "option-rom", 243 .implied_opt_name = "romfile", 244 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head), 245 .desc = { 246 { 247 .name = "bootindex", 248 .type = QEMU_OPT_NUMBER, 249 }, { 250 .name = "romfile", 251 .type = QEMU_OPT_STRING, 252 }, 253 { /* end of list */ } 254 }, 255 }; 256 257 static QemuOptsList qemu_accel_opts = { 258 .name = "accel", 259 .implied_opt_name = "accel", 260 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head), 261 .desc = { 262 /* 263 * no elements => accept any 264 * sanity checking will happen later 265 * when setting accelerator properties 266 */ 267 { } 268 }, 269 }; 270 271 static QemuOptsList qemu_boot_opts = { 272 .name = "boot-opts", 273 .implied_opt_name = "order", 274 .merge_lists = true, 275 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head), 276 .desc = { 277 { 278 .name = "order", 279 .type = QEMU_OPT_STRING, 280 }, { 281 .name = "once", 282 .type = QEMU_OPT_STRING, 283 }, { 284 .name = "menu", 285 .type = QEMU_OPT_BOOL, 286 }, { 287 .name = "splash", 288 .type = QEMU_OPT_STRING, 289 }, { 290 .name = "splash-time", 291 .type = QEMU_OPT_NUMBER, 292 }, { 293 .name = "reboot-timeout", 294 .type = QEMU_OPT_NUMBER, 295 }, { 296 .name = "strict", 297 .type = QEMU_OPT_BOOL, 298 }, 299 { /*End of list */ } 300 }, 301 }; 302 303 static QemuOptsList qemu_add_fd_opts = { 304 .name = "add-fd", 305 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head), 306 .desc = { 307 { 308 .name = "fd", 309 .type = QEMU_OPT_NUMBER, 310 .help = "file descriptor of which a duplicate is added to fd set", 311 },{ 312 .name = "set", 313 .type = QEMU_OPT_NUMBER, 314 .help = "ID of the fd set to add fd to", 315 },{ 316 .name = "opaque", 317 .type = QEMU_OPT_STRING, 318 .help = "free-form string used to describe fd", 319 }, 320 { /* end of list */ } 321 }, 322 }; 323 324 static QemuOptsList qemu_object_opts = { 325 .name = "object", 326 .implied_opt_name = "qom-type", 327 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head), 328 .desc = { 329 { } 330 }, 331 }; 332 333 static QemuOptsList qemu_tpmdev_opts = { 334 .name = "tpmdev", 335 .implied_opt_name = "type", 336 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head), 337 .desc = { 338 /* options are defined in the TPM backends */ 339 { /* end of list */ } 340 }, 341 }; 342 343 static QemuOptsList qemu_overcommit_opts = { 344 .name = "overcommit", 345 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head), 346 .desc = { 347 { 348 .name = "mem-lock", 349 .type = QEMU_OPT_BOOL, 350 }, 351 { 352 .name = "cpu-pm", 353 .type = QEMU_OPT_BOOL, 354 }, 355 { /* end of list */ } 356 }, 357 }; 358 359 static QemuOptsList qemu_msg_opts = { 360 .name = "msg", 361 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head), 362 .desc = { 363 { 364 .name = "timestamp", 365 .type = QEMU_OPT_BOOL, 366 }, 367 { 368 .name = "guest-name", 369 .type = QEMU_OPT_BOOL, 370 .help = "Prepends guest name for error messages but only if " 371 "-name guest is set otherwise option is ignored\n", 372 }, 373 { /* end of list */ } 374 }, 375 }; 376 377 static QemuOptsList qemu_name_opts = { 378 .name = "name", 379 .implied_opt_name = "guest", 380 .merge_lists = true, 381 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head), 382 .desc = { 383 { 384 .name = "guest", 385 .type = QEMU_OPT_STRING, 386 .help = "Sets the name of the guest.\n" 387 "This name will be displayed in the SDL window caption.\n" 388 "The name will also be used for the VNC server", 389 }, { 390 .name = "process", 391 .type = QEMU_OPT_STRING, 392 .help = "Sets the name of the QEMU process, as shown in top etc", 393 }, { 394 .name = "debug-threads", 395 .type = QEMU_OPT_BOOL, 396 .help = "When enabled, name the individual threads; defaults off.\n" 397 "NOTE: The thread names are for debugging and not a\n" 398 "stable API.", 399 }, 400 { /* End of list */ } 401 }, 402 }; 403 404 static QemuOptsList qemu_mem_opts = { 405 .name = "memory", 406 .implied_opt_name = "size", 407 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head), 408 .merge_lists = true, 409 .desc = { 410 { 411 .name = "size", 412 .type = QEMU_OPT_SIZE, 413 }, 414 { 415 .name = "slots", 416 .type = QEMU_OPT_NUMBER, 417 }, 418 { 419 .name = "maxmem", 420 .type = QEMU_OPT_SIZE, 421 }, 422 { /* end of list */ } 423 }, 424 }; 425 426 static QemuOptsList qemu_icount_opts = { 427 .name = "icount", 428 .implied_opt_name = "shift", 429 .merge_lists = true, 430 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head), 431 .desc = { 432 { 433 .name = "shift", 434 .type = QEMU_OPT_STRING, 435 }, { 436 .name = "align", 437 .type = QEMU_OPT_BOOL, 438 }, { 439 .name = "sleep", 440 .type = QEMU_OPT_BOOL, 441 }, { 442 .name = "rr", 443 .type = QEMU_OPT_STRING, 444 }, { 445 .name = "rrfile", 446 .type = QEMU_OPT_STRING, 447 }, { 448 .name = "rrsnapshot", 449 .type = QEMU_OPT_STRING, 450 }, 451 { /* end of list */ } 452 }, 453 }; 454 455 static QemuOptsList qemu_fw_cfg_opts = { 456 .name = "fw_cfg", 457 .implied_opt_name = "name", 458 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head), 459 .desc = { 460 { 461 .name = "name", 462 .type = QEMU_OPT_STRING, 463 .help = "Sets the fw_cfg name of the blob to be inserted", 464 }, { 465 .name = "file", 466 .type = QEMU_OPT_STRING, 467 .help = "Sets the name of the file from which " 468 "the fw_cfg blob will be loaded", 469 }, { 470 .name = "string", 471 .type = QEMU_OPT_STRING, 472 .help = "Sets content of the blob to be inserted from a string", 473 }, { 474 .name = "gen_id", 475 .type = QEMU_OPT_STRING, 476 .help = "Sets id of the object generating the fw_cfg blob " 477 "to be inserted", 478 }, 479 { /* end of list */ } 480 }, 481 }; 482 483 static QemuOptsList qemu_action_opts = { 484 .name = "action", 485 .merge_lists = true, 486 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head), 487 .desc = { 488 { 489 .name = "shutdown", 490 .type = QEMU_OPT_STRING, 491 },{ 492 .name = "reboot", 493 .type = QEMU_OPT_STRING, 494 },{ 495 .name = "panic", 496 .type = QEMU_OPT_STRING, 497 },{ 498 .name = "watchdog", 499 .type = QEMU_OPT_STRING, 500 }, 501 { /* end of list */ } 502 }, 503 }; 504 505 const char *qemu_get_vm_name(void) 506 { 507 return qemu_name; 508 } 509 510 static void default_driver_disable(const char *driver) 511 { 512 int i; 513 514 if (!driver) { 515 return; 516 } 517 518 for (i = 0; i < ARRAY_SIZE(default_list); i++) { 519 if (strcmp(default_list[i].driver, driver) != 0) 520 continue; 521 *(default_list[i].flag) = 0; 522 } 523 } 524 525 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp) 526 { 527 const char *driver = qemu_opt_get(opts, "driver"); 528 529 default_driver_disable(driver); 530 return 0; 531 } 532 533 static void default_driver_check_json(void) 534 { 535 DeviceOption *opt; 536 537 QTAILQ_FOREACH(opt, &device_opts, next) { 538 const char *driver = qdict_get_try_str(opt->opts, "driver"); 539 default_driver_disable(driver); 540 } 541 } 542 543 static int parse_name(void *opaque, QemuOpts *opts, Error **errp) 544 { 545 const char *proc_name; 546 547 if (qemu_opt_get(opts, "debug-threads")) { 548 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false)); 549 } 550 qemu_name = qemu_opt_get(opts, "guest"); 551 552 proc_name = qemu_opt_get(opts, "process"); 553 if (proc_name) { 554 os_set_proc_name(proc_name); 555 } 556 557 return 0; 558 } 559 560 bool defaults_enabled(void) 561 { 562 return has_defaults; 563 } 564 565 #ifndef _WIN32 566 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp) 567 { 568 int fd, dupfd, flags; 569 int64_t fdset_id; 570 const char *fd_opaque = NULL; 571 AddfdInfo *fdinfo; 572 573 fd = qemu_opt_get_number(opts, "fd", -1); 574 fdset_id = qemu_opt_get_number(opts, "set", -1); 575 fd_opaque = qemu_opt_get(opts, "opaque"); 576 577 if (fd < 0) { 578 error_setg(errp, "fd option is required and must be non-negative"); 579 return -1; 580 } 581 582 if (fd <= STDERR_FILENO) { 583 error_setg(errp, "fd cannot be a standard I/O stream"); 584 return -1; 585 } 586 587 /* 588 * All fds inherited across exec() necessarily have FD_CLOEXEC 589 * clear, while qemu sets FD_CLOEXEC on all other fds used internally. 590 */ 591 flags = fcntl(fd, F_GETFD); 592 if (flags == -1 || (flags & FD_CLOEXEC)) { 593 error_setg(errp, "fd is not valid or already in use"); 594 return -1; 595 } 596 597 if (fdset_id < 0) { 598 error_setg(errp, "set option is required and must be non-negative"); 599 return -1; 600 } 601 602 #ifdef F_DUPFD_CLOEXEC 603 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0); 604 #else 605 dupfd = dup(fd); 606 if (dupfd != -1) { 607 qemu_set_cloexec(dupfd); 608 } 609 #endif 610 if (dupfd == -1) { 611 error_setg(errp, "error duplicating fd: %s", strerror(errno)); 612 return -1; 613 } 614 615 /* add the duplicate fd, and optionally the opaque string, to the fd set */ 616 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque, 617 &error_abort); 618 g_free(fdinfo); 619 620 return 0; 621 } 622 623 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp) 624 { 625 int fd; 626 627 fd = qemu_opt_get_number(opts, "fd", -1); 628 close(fd); 629 630 return 0; 631 } 632 #endif 633 634 /***********************************************************/ 635 /* QEMU Block devices */ 636 637 #define HD_OPTS "media=disk" 638 #define CDROM_OPTS "media=cdrom" 639 #define FD_OPTS "" 640 #define PFLASH_OPTS "" 641 #define MTD_OPTS "" 642 #define SD_OPTS "" 643 644 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp) 645 { 646 BlockInterfaceType *block_default_type = opaque; 647 648 return drive_new(opts, *block_default_type, errp) == NULL; 649 } 650 651 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp) 652 { 653 if (qemu_opt_get(opts, "snapshot") == NULL) { 654 qemu_opt_set(opts, "snapshot", "on", &error_abort); 655 } 656 return 0; 657 } 658 659 static void default_drive(int enable, int snapshot, BlockInterfaceType type, 660 int index, const char *optstr) 661 { 662 QemuOpts *opts; 663 DriveInfo *dinfo; 664 665 if (!enable || drive_get_by_index(type, index)) { 666 return; 667 } 668 669 opts = drive_add(type, index, NULL, optstr); 670 if (snapshot) { 671 drive_enable_snapshot(NULL, opts, NULL); 672 } 673 674 dinfo = drive_new(opts, type, &error_abort); 675 dinfo->is_default = true; 676 677 } 678 679 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue, 680 MachineClass *machine_class, int snapshot) 681 { 682 /* 683 * If the currently selected machine wishes to override the 684 * units-per-bus property of its default HBA interface type, do so 685 * now. 686 */ 687 if (machine_class->units_per_default_bus) { 688 override_max_devs(machine_class->block_default_type, 689 machine_class->units_per_default_bus); 690 } 691 692 /* open the virtual block devices */ 693 while (!QSIMPLEQ_EMPTY(bdo_queue)) { 694 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue); 695 696 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry); 697 loc_push_restore(&bdo->loc); 698 qmp_blockdev_add(bdo->bdo, &error_fatal); 699 loc_pop(&bdo->loc); 700 qapi_free_BlockdevOptions(bdo->bdo); 701 g_free(bdo); 702 } 703 if (snapshot) { 704 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, 705 NULL, NULL); 706 } 707 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, 708 &machine_class->block_default_type, &error_fatal)) { 709 /* We printed help */ 710 exit(0); 711 } 712 713 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2, 714 CDROM_OPTS); 715 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS); 716 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS); 717 718 } 719 720 static QemuOptsList qemu_smp_opts = { 721 .name = "smp-opts", 722 .implied_opt_name = "cpus", 723 .merge_lists = true, 724 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head), 725 .desc = { 726 { 727 .name = "cpus", 728 .type = QEMU_OPT_NUMBER, 729 }, { 730 .name = "drawers", 731 .type = QEMU_OPT_NUMBER, 732 }, { 733 .name = "books", 734 .type = QEMU_OPT_NUMBER, 735 }, { 736 .name = "sockets", 737 .type = QEMU_OPT_NUMBER, 738 }, { 739 .name = "dies", 740 .type = QEMU_OPT_NUMBER, 741 }, { 742 .name = "clusters", 743 .type = QEMU_OPT_NUMBER, 744 }, { 745 .name = "cores", 746 .type = QEMU_OPT_NUMBER, 747 }, { 748 .name = "threads", 749 .type = QEMU_OPT_NUMBER, 750 }, { 751 .name = "maxcpus", 752 .type = QEMU_OPT_NUMBER, 753 }, 754 { /*End of list */ } 755 }, 756 }; 757 758 #if defined(CONFIG_POSIX) 759 static QemuOptsList qemu_run_with_opts = { 760 .name = "run-with", 761 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head), 762 .desc = { 763 #if defined(CONFIG_LINUX) 764 { 765 .name = "async-teardown", 766 .type = QEMU_OPT_BOOL, 767 }, 768 #endif 769 { 770 .name = "chroot", 771 .type = QEMU_OPT_STRING, 772 }, 773 { /* end of list */ } 774 }, 775 }; 776 777 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts) 778 779 #else 780 781 #define qemu_add_run_with_opts() 782 783 #endif /* CONFIG_POSIX */ 784 785 static void realtime_init(void) 786 { 787 if (enable_mlock) { 788 if (os_mlock() < 0) { 789 error_report("locking memory failed"); 790 exit(1); 791 } 792 } 793 } 794 795 796 static void configure_msg(QemuOpts *opts) 797 { 798 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false); 799 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false); 800 } 801 802 803 /***********************************************************/ 804 /* USB devices */ 805 806 static int usb_device_add(const char *devname) 807 { 808 USBDevice *dev = NULL; 809 810 if (!machine_usb(current_machine)) { 811 return -1; 812 } 813 814 dev = usbdevice_create(devname); 815 if (!dev) 816 return -1; 817 818 return 0; 819 } 820 821 static int usb_parse(const char *cmdline) 822 { 823 int r; 824 r = usb_device_add(cmdline); 825 if (r < 0) { 826 error_report("could not add USB device '%s'", cmdline); 827 } 828 return r; 829 } 830 831 /***********************************************************/ 832 /* machine registration */ 833 834 static MachineClass *find_machine(const char *name, GSList *machines) 835 { 836 GSList *el; 837 838 for (el = machines; el; el = el->next) { 839 MachineClass *mc = el->data; 840 841 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) { 842 return mc; 843 } 844 } 845 846 return NULL; 847 } 848 849 static MachineClass *find_default_machine(GSList *machines) 850 { 851 GSList *el; 852 MachineClass *default_machineclass = NULL; 853 854 for (el = machines; el; el = el->next) { 855 MachineClass *mc = el->data; 856 857 if (mc->is_default) { 858 assert(default_machineclass == NULL && "Multiple default machines"); 859 default_machineclass = mc; 860 } 861 } 862 863 return default_machineclass; 864 } 865 866 static void version(void) 867 { 868 printf("QEMU emulator version " QEMU_FULL_VERSION "\n" 869 QEMU_COPYRIGHT "\n"); 870 } 871 872 static void help(int exitcode) 873 { 874 version(); 875 printf("usage: %s [options] [disk_image]\n\n" 876 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n", 877 g_get_prgname()); 878 879 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 880 if ((arch_mask) & arch_type) \ 881 fputs(opt_help, stdout); 882 883 #define ARCHHEADING(text, arch_mask) \ 884 if ((arch_mask) & arch_type) \ 885 puts(stringify(text)); 886 887 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL) 888 889 #include "qemu-options.def" 890 891 printf("\nDuring emulation, the following keys are useful:\n" 892 "ctrl-alt-f toggle full screen\n" 893 "ctrl-alt-n switch to virtual console 'n'\n" 894 "ctrl-alt toggle mouse and keyboard grab\n" 895 "\n" 896 "When using -nographic, press 'ctrl-a h' to get some help.\n" 897 "\n" 898 QEMU_HELP_BOTTOM "\n"); 899 900 exit(exitcode); 901 } 902 903 enum { 904 905 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 906 opt_enum, 907 #define DEFHEADING(text) 908 #define ARCHHEADING(text, arch_mask) 909 910 #include "qemu-options.def" 911 }; 912 913 #define HAS_ARG 0x0001 914 915 typedef struct QEMUOption { 916 const char *name; 917 int flags; 918 int index; 919 uint32_t arch_mask; 920 } QEMUOption; 921 922 static const QEMUOption qemu_options[] = { 923 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL }, 924 925 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \ 926 { option, opt_arg, opt_enum, arch_mask }, 927 #define DEFHEADING(text) 928 #define ARCHHEADING(text, arch_mask) 929 930 #include "qemu-options.def" 931 { /* end of list */ } 932 }; 933 934 typedef struct VGAInterfaceInfo { 935 const char *opt_name; /* option name */ 936 const char *name; /* human-readable name */ 937 /* Class names indicating that support is available. 938 * If no class is specified, the interface is always available */ 939 const char *class_names[2]; 940 } VGAInterfaceInfo; 941 942 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = { 943 [VGA_NONE] = { 944 .opt_name = "none", 945 .name = "no graphic card", 946 }, 947 [VGA_STD] = { 948 .opt_name = "std", 949 .name = "standard VGA", 950 .class_names = { "VGA", "isa-vga" }, 951 }, 952 [VGA_CIRRUS] = { 953 .opt_name = "cirrus", 954 .name = "Cirrus VGA", 955 .class_names = { "cirrus-vga", "isa-cirrus-vga" }, 956 }, 957 [VGA_VMWARE] = { 958 .opt_name = "vmware", 959 .name = "VMWare SVGA", 960 .class_names = { "vmware-svga" }, 961 }, 962 [VGA_VIRTIO] = { 963 .opt_name = "virtio", 964 .name = "Virtio VGA", 965 .class_names = { "virtio-vga" }, 966 }, 967 [VGA_QXL] = { 968 .opt_name = "qxl", 969 .name = "QXL VGA", 970 .class_names = { "qxl-vga" }, 971 }, 972 [VGA_TCX] = { 973 .opt_name = "tcx", 974 .name = "TCX framebuffer", 975 .class_names = { "sun-tcx" }, 976 }, 977 [VGA_CG3] = { 978 .opt_name = "cg3", 979 .name = "CG3 framebuffer", 980 .class_names = { "cgthree" }, 981 }, 982 #ifdef CONFIG_XEN_BACKEND 983 [VGA_XENFB] = { 984 .opt_name = "xenfb", 985 .name = "Xen paravirtualized framebuffer", 986 }, 987 #endif 988 }; 989 990 static bool vga_interface_available(VGAInterfaceType t) 991 { 992 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 993 994 assert(t < VGA_TYPE_MAX); 995 return !ti->class_names[0] || 996 module_object_class_by_name(ti->class_names[0]) || 997 module_object_class_by_name(ti->class_names[1]); 998 } 999 1000 static const char * 1001 get_default_vga_model(const MachineClass *machine_class) 1002 { 1003 if (machine_class->default_display) { 1004 for (int t = 0; t < VGA_TYPE_MAX; t++) { 1005 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1006 1007 if (ti->opt_name && vga_interface_available(t) && 1008 g_str_equal(ti->opt_name, machine_class->default_display)) { 1009 return machine_class->default_display; 1010 } 1011 } 1012 1013 warn_report_once("Default display '%s' is not available in this binary", 1014 machine_class->default_display); 1015 return NULL; 1016 } else if (vga_interface_available(VGA_CIRRUS)) { 1017 return "cirrus"; 1018 } else if (vga_interface_available(VGA_STD)) { 1019 return "std"; 1020 } 1021 1022 return NULL; 1023 } 1024 1025 static void select_vgahw(const MachineClass *machine_class, const char *p) 1026 { 1027 const char *opts; 1028 int t; 1029 1030 if (g_str_equal(p, "help")) { 1031 const char *def = get_default_vga_model(machine_class); 1032 1033 for (t = 0; t < VGA_TYPE_MAX; t++) { 1034 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1035 1036 if (vga_interface_available(t) && ti->opt_name) { 1037 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "", 1038 (def && g_str_equal(ti->opt_name, def)) ? 1039 " (default)" : ""); 1040 } 1041 } 1042 exit(0); 1043 } 1044 1045 assert(vga_interface_type == VGA_NONE); 1046 for (t = 0; t < VGA_TYPE_MAX; t++) { 1047 const VGAInterfaceInfo *ti = &vga_interfaces[t]; 1048 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) { 1049 if (!vga_interface_available(t)) { 1050 error_report("%s not available", ti->name); 1051 exit(1); 1052 } 1053 vga_interface_type = t; 1054 break; 1055 } 1056 } 1057 if (t == VGA_TYPE_MAX) { 1058 invalid_vga: 1059 error_report("unknown vga type: %s", p); 1060 exit(1); 1061 } 1062 while (*opts) { 1063 const char *nextopt; 1064 1065 if (strstart(opts, ",retrace=", &nextopt)) { 1066 opts = nextopt; 1067 if (strstart(opts, "dumb", &nextopt)) 1068 vga_retrace_method = VGA_RETRACE_DUMB; 1069 else if (strstart(opts, "precise", &nextopt)) 1070 vga_retrace_method = VGA_RETRACE_PRECISE; 1071 else goto invalid_vga; 1072 } else goto invalid_vga; 1073 opts = nextopt; 1074 } 1075 } 1076 1077 static void parse_display_qapi(const char *str) 1078 { 1079 DisplayOptions *opts; 1080 Visitor *v; 1081 1082 v = qobject_input_visitor_new_str(str, "type", &error_fatal); 1083 1084 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal); 1085 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts); 1086 1087 qapi_free_DisplayOptions(opts); 1088 visit_free(v); 1089 } 1090 1091 DisplayOptions *qmp_query_display_options(Error **errp) 1092 { 1093 return QAPI_CLONE(DisplayOptions, &dpy); 1094 } 1095 1096 static void parse_display(const char *p) 1097 { 1098 if (is_help_option(p)) { 1099 qemu_display_help(); 1100 exit(0); 1101 } 1102 1103 #ifdef CONFIG_VNC 1104 const char *opts; 1105 1106 if (strstart(p, "vnc", &opts)) { 1107 /* 1108 * vnc isn't a (local) DisplayType but a protocol for remote 1109 * display access. 1110 */ 1111 if (*opts == '=') { 1112 vnc_parse(opts + 1); 1113 } else { 1114 error_report("VNC requires a display argument vnc=<display>"); 1115 exit(1); 1116 } 1117 return; 1118 } 1119 #endif 1120 1121 parse_display_qapi(p); 1122 } 1123 1124 static inline bool nonempty_str(const char *str) 1125 { 1126 return str && *str; 1127 } 1128 1129 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp) 1130 { 1131 gchar *buf; 1132 size_t size; 1133 const char *name, *file, *str, *gen_id; 1134 FWCfgState *fw_cfg = (FWCfgState *) opaque; 1135 1136 if (fw_cfg == NULL) { 1137 error_setg(errp, "fw_cfg device not available"); 1138 return -1; 1139 } 1140 name = qemu_opt_get(opts, "name"); 1141 file = qemu_opt_get(opts, "file"); 1142 str = qemu_opt_get(opts, "string"); 1143 gen_id = qemu_opt_get(opts, "gen_id"); 1144 1145 /* we need the name, and exactly one of: file, content string, gen_id */ 1146 if (!nonempty_str(name) || 1147 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) { 1148 error_setg(errp, "name, plus exactly one of file," 1149 " string and gen_id, are needed"); 1150 return -1; 1151 } 1152 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) { 1153 error_setg(errp, "name too long (max. %d char)", 1154 FW_CFG_MAX_FILE_PATH - 1); 1155 return -1; 1156 } 1157 if (nonempty_str(gen_id)) { 1158 /* 1159 * In this particular case where the content is populated 1160 * internally, the "etc/" namespace protection is relaxed, 1161 * so do not emit a warning. 1162 */ 1163 } else if (strncmp(name, "opt/", 4) != 0) { 1164 warn_report("externally provided fw_cfg item names " 1165 "should be prefixed with \"opt/\""); 1166 } 1167 if (nonempty_str(str)) { 1168 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */ 1169 buf = g_memdup(str, size); 1170 } else if (nonempty_str(gen_id)) { 1171 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) { 1172 return -1; 1173 } 1174 return 0; 1175 } else { 1176 GError *err = NULL; 1177 if (!g_file_get_contents(file, &buf, &size, &err)) { 1178 error_setg(errp, "can't load %s: %s", file, err->message); 1179 g_error_free(err); 1180 return -1; 1181 } 1182 } 1183 /* For legacy, keep user files in a specific global order. */ 1184 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER); 1185 fw_cfg_add_file(fw_cfg, name, buf, size); 1186 fw_cfg_reset_order_override(fw_cfg); 1187 return 0; 1188 } 1189 1190 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp) 1191 { 1192 return qdev_device_help(opts); 1193 } 1194 1195 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp) 1196 { 1197 DeviceState *dev; 1198 1199 dev = qdev_device_add(opts, errp); 1200 if (!dev && *errp) { 1201 error_report_err(*errp); 1202 return -1; 1203 } else if (dev) { 1204 object_unref(OBJECT(dev)); 1205 } 1206 return 0; 1207 } 1208 1209 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1210 { 1211 Error *local_err = NULL; 1212 1213 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) { 1214 if (local_err) { 1215 error_propagate(errp, local_err); 1216 return -1; 1217 } 1218 exit(0); 1219 } 1220 return 0; 1221 } 1222 1223 #ifdef CONFIG_VIRTFS 1224 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp) 1225 { 1226 return qemu_fsdev_add(opts, errp); 1227 } 1228 #endif 1229 1230 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp) 1231 { 1232 return monitor_init_opts(opts, errp); 1233 } 1234 1235 static void monitor_parse(const char *str, const char *mode, bool pretty) 1236 { 1237 static int monitor_device_index = 0; 1238 QemuOpts *opts; 1239 const char *p; 1240 char label[32]; 1241 1242 if (strstart(str, "chardev:", &p)) { 1243 snprintf(label, sizeof(label), "%s", p); 1244 } else { 1245 snprintf(label, sizeof(label), "compat_monitor%d", 1246 monitor_device_index); 1247 opts = qemu_chr_parse_compat(label, str, true); 1248 if (!opts) { 1249 error_report("parse error: %s", str); 1250 exit(1); 1251 } 1252 } 1253 1254 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal); 1255 qemu_opt_set(opts, "mode", mode, &error_abort); 1256 qemu_opt_set(opts, "chardev", label, &error_abort); 1257 if (!strcmp(mode, "control")) { 1258 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort); 1259 } else { 1260 assert(pretty == false); 1261 } 1262 monitor_device_index++; 1263 } 1264 1265 struct device_config { 1266 enum { 1267 DEV_USB, /* -usbdevice */ 1268 DEV_SERIAL, /* -serial */ 1269 DEV_PARALLEL, /* -parallel */ 1270 DEV_DEBUGCON, /* -debugcon */ 1271 DEV_GDB, /* -gdb, -s */ 1272 DEV_SCLP, /* s390 sclp */ 1273 } type; 1274 const char *cmdline; 1275 Location loc; 1276 QTAILQ_ENTRY(device_config) next; 1277 }; 1278 1279 static QTAILQ_HEAD(, device_config) device_configs = 1280 QTAILQ_HEAD_INITIALIZER(device_configs); 1281 1282 static void add_device_config(int type, const char *cmdline) 1283 { 1284 struct device_config *conf; 1285 1286 conf = g_malloc0(sizeof(*conf)); 1287 conf->type = type; 1288 conf->cmdline = cmdline; 1289 loc_save(&conf->loc); 1290 QTAILQ_INSERT_TAIL(&device_configs, conf, next); 1291 } 1292 1293 static int foreach_device_config(int type, int (*func)(const char *cmdline)) 1294 { 1295 struct device_config *conf; 1296 int rc; 1297 1298 QTAILQ_FOREACH(conf, &device_configs, next) { 1299 if (conf->type != type) 1300 continue; 1301 loc_push_restore(&conf->loc); 1302 rc = func(conf->cmdline); 1303 loc_pop(&conf->loc); 1304 if (rc) { 1305 return rc; 1306 } 1307 } 1308 return 0; 1309 } 1310 1311 static void qemu_disable_default_devices(void) 1312 { 1313 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1314 1315 default_driver_check_json(); 1316 qemu_opts_foreach(qemu_find_opts("device"), 1317 default_driver_check, NULL, NULL); 1318 qemu_opts_foreach(qemu_find_opts("global"), 1319 default_driver_check, NULL, NULL); 1320 1321 if (!vga_model && !default_vga) { 1322 vga_interface_type = VGA_DEVICE; 1323 vga_interface_created = true; 1324 } 1325 if (!has_defaults || machine_class->no_serial) { 1326 default_serial = 0; 1327 } 1328 if (!has_defaults || machine_class->no_parallel) { 1329 default_parallel = 0; 1330 } 1331 if (!has_defaults || machine_class->no_floppy) { 1332 default_floppy = 0; 1333 } 1334 if (!has_defaults || machine_class->no_cdrom) { 1335 default_cdrom = 0; 1336 } 1337 if (!has_defaults || machine_class->no_sdcard) { 1338 default_sdcard = 0; 1339 } 1340 if (!has_defaults) { 1341 default_audio = 0; 1342 default_monitor = 0; 1343 default_net = 0; 1344 default_vga = 0; 1345 } else { 1346 if (default_net && machine_class->default_nic && 1347 !module_object_class_by_name(machine_class->default_nic)) { 1348 warn_report("Default NIC '%s' is not available in this binary", 1349 machine_class->default_nic); 1350 default_net = 0; 1351 } 1352 } 1353 } 1354 1355 static void qemu_create_default_devices(void) 1356 { 1357 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1358 1359 if (is_daemonized()) { 1360 /* According to documentation and historically, -nographic redirects 1361 * serial port, parallel port and monitor to stdio, which does not work 1362 * with -daemonize. We can redirect these to null instead, but since 1363 * -nographic is legacy, let's just error out. 1364 * We disallow -nographic only if all other ports are not redirected 1365 * explicitly, to not break existing legacy setups which uses 1366 * -nographic _and_ redirects all ports explicitly - this is valid 1367 * usage, -nographic is just a no-op in this case. 1368 */ 1369 if (nographic 1370 && (default_parallel || default_serial || default_monitor)) { 1371 error_report("-nographic cannot be used with -daemonize"); 1372 exit(1); 1373 } 1374 } 1375 1376 if (nographic) { 1377 if (default_parallel) 1378 add_device_config(DEV_PARALLEL, "null"); 1379 if (default_serial && default_monitor) { 1380 add_device_config(DEV_SERIAL, "mon:stdio"); 1381 } else { 1382 if (default_serial) 1383 add_device_config(DEV_SERIAL, "stdio"); 1384 if (default_monitor) 1385 monitor_parse("stdio", "readline", false); 1386 } 1387 } else { 1388 if (default_serial) 1389 add_device_config(DEV_SERIAL, "vc:80Cx24C"); 1390 if (default_parallel) 1391 add_device_config(DEV_PARALLEL, "vc:80Cx24C"); 1392 if (default_monitor) 1393 monitor_parse("vc:80Cx24C", "readline", false); 1394 } 1395 1396 if (default_net) { 1397 QemuOptsList *net = qemu_find_opts("net"); 1398 qemu_opts_parse(net, "nic", true, &error_abort); 1399 #ifdef CONFIG_SLIRP 1400 qemu_opts_parse(net, "user", true, &error_abort); 1401 #endif 1402 } 1403 1404 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) { 1405 if (!qemu_display_find_default(&dpy)) { 1406 dpy.type = DISPLAY_TYPE_NONE; 1407 #if defined(CONFIG_VNC) 1408 vnc_parse("localhost:0,to=99,id=default"); 1409 #endif 1410 } 1411 } 1412 if (dpy.type == DISPLAY_TYPE_DEFAULT) { 1413 dpy.type = DISPLAY_TYPE_NONE; 1414 } 1415 1416 /* If no default VGA is requested, the default is "none". */ 1417 if (default_vga) { 1418 vga_model = get_default_vga_model(machine_class); 1419 } 1420 if (vga_model) { 1421 select_vgahw(machine_class, vga_model); 1422 } 1423 } 1424 1425 static int serial_parse(const char *devname) 1426 { 1427 int index = num_serial_hds; 1428 char label[32]; 1429 1430 if (strcmp(devname, "none") == 0) 1431 return 0; 1432 snprintf(label, sizeof(label), "serial%d", index); 1433 serial_hds = g_renew(Chardev *, serial_hds, index + 1); 1434 1435 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1436 if (!serial_hds[index]) { 1437 error_report("could not connect serial device" 1438 " to character backend '%s'", devname); 1439 return -1; 1440 } 1441 num_serial_hds++; 1442 return 0; 1443 } 1444 1445 Chardev *serial_hd(int i) 1446 { 1447 assert(i >= 0); 1448 if (i < num_serial_hds) { 1449 return serial_hds[i]; 1450 } 1451 return NULL; 1452 } 1453 1454 static int parallel_parse(const char *devname) 1455 { 1456 static int index = 0; 1457 char label[32]; 1458 1459 if (strcmp(devname, "none") == 0) 1460 return 0; 1461 if (index == MAX_PARALLEL_PORTS) { 1462 error_report("too many parallel ports"); 1463 exit(1); 1464 } 1465 snprintf(label, sizeof(label), "parallel%d", index); 1466 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL); 1467 if (!parallel_hds[index]) { 1468 error_report("could not connect parallel device" 1469 " to character backend '%s'", devname); 1470 return -1; 1471 } 1472 index++; 1473 return 0; 1474 } 1475 1476 static int debugcon_parse(const char *devname) 1477 { 1478 QemuOpts *opts; 1479 1480 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) { 1481 error_report("invalid character backend '%s'", devname); 1482 exit(1); 1483 } 1484 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL); 1485 if (!opts) { 1486 error_report("already have a debugcon device"); 1487 exit(1); 1488 } 1489 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort); 1490 qemu_opt_set(opts, "chardev", "debugcon", &error_abort); 1491 return 0; 1492 } 1493 1494 static gint machine_class_cmp(gconstpointer a, gconstpointer b) 1495 { 1496 const MachineClass *mc1 = a, *mc2 = b; 1497 int res; 1498 1499 if (mc1->family == NULL) { 1500 if (mc2->family == NULL) { 1501 /* Compare standalone machine types against each other; they sort 1502 * in increasing order. 1503 */ 1504 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)), 1505 object_class_get_name(OBJECT_CLASS(mc2))); 1506 } 1507 1508 /* Standalone machine types sort after families. */ 1509 return 1; 1510 } 1511 1512 if (mc2->family == NULL) { 1513 /* Families sort before standalone machine types. */ 1514 return -1; 1515 } 1516 1517 /* Families sort between each other alphabetically increasingly. */ 1518 res = strcmp(mc1->family, mc2->family); 1519 if (res != 0) { 1520 return res; 1521 } 1522 1523 /* Within the same family, machine types sort in decreasing order. */ 1524 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)), 1525 object_class_get_name(OBJECT_CLASS(mc1))); 1526 } 1527 1528 static void machine_help_func(const QDict *qdict) 1529 { 1530 GSList *machines, *el; 1531 const char *type = qdict_get_try_str(qdict, "type"); 1532 1533 machines = object_class_get_list(TYPE_MACHINE, false); 1534 if (type) { 1535 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines)); 1536 if (machine_class) { 1537 type_print_class_properties(object_class_get_name(machine_class)); 1538 return; 1539 } 1540 } 1541 1542 printf("Supported machines are:\n"); 1543 machines = g_slist_sort(machines, machine_class_cmp); 1544 for (el = machines; el; el = el->next) { 1545 MachineClass *mc = el->data; 1546 if (mc->alias) { 1547 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name); 1548 } 1549 printf("%-20s %s%s%s\n", mc->name, mc->desc, 1550 mc->is_default ? " (default)" : "", 1551 mc->deprecation_reason ? " (deprecated)" : ""); 1552 } 1553 } 1554 1555 static void 1556 machine_merge_property(const char *propname, QDict *prop, Error **errp) 1557 { 1558 QDict *opts; 1559 1560 opts = qdict_new(); 1561 /* Preserve the caller's reference to prop. */ 1562 qobject_ref(prop); 1563 qdict_put(opts, propname, prop); 1564 keyval_merge(machine_opts_dict, opts, errp); 1565 qobject_unref(opts); 1566 } 1567 1568 static void 1569 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname, 1570 const char *arg) 1571 { 1572 QDict *prop = NULL; 1573 bool help = false; 1574 1575 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal); 1576 if (help) { 1577 qemu_opts_print_help(opts_list, true); 1578 exit(0); 1579 } 1580 machine_merge_property(propname, prop, &error_fatal); 1581 qobject_unref(prop); 1582 } 1583 1584 static const char *pid_file; 1585 struct UnlinkPidfileNotifier { 1586 Notifier notifier; 1587 char *pid_file_realpath; 1588 }; 1589 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier; 1590 1591 static void qemu_unlink_pidfile(Notifier *n, void *data) 1592 { 1593 struct UnlinkPidfileNotifier *upn; 1594 1595 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n); 1596 unlink(upn->pid_file_realpath); 1597 } 1598 1599 static const QEMUOption *lookup_opt(int argc, char **argv, 1600 const char **poptarg, int *poptind) 1601 { 1602 const QEMUOption *popt; 1603 int optind = *poptind; 1604 char *r = argv[optind]; 1605 const char *optarg; 1606 1607 loc_set_cmdline(argv, optind, 1); 1608 optind++; 1609 /* Treat --foo the same as -foo. */ 1610 if (r[1] == '-') 1611 r++; 1612 popt = qemu_options; 1613 for(;;) { 1614 if (!popt->name) { 1615 error_report("invalid option"); 1616 exit(1); 1617 } 1618 if (!strcmp(popt->name, r + 1)) 1619 break; 1620 popt++; 1621 } 1622 if (popt->flags & HAS_ARG) { 1623 if (optind >= argc) { 1624 error_report("requires an argument"); 1625 exit(1); 1626 } 1627 optarg = argv[optind++]; 1628 loc_set_cmdline(argv, optind - 2, 2); 1629 } else { 1630 optarg = NULL; 1631 } 1632 1633 *poptarg = optarg; 1634 *poptind = optind; 1635 1636 return popt; 1637 } 1638 1639 static MachineClass *select_machine(QDict *qdict, Error **errp) 1640 { 1641 const char *machine_type = qdict_get_try_str(qdict, "type"); 1642 GSList *machines = object_class_get_list(TYPE_MACHINE, false); 1643 MachineClass *machine_class; 1644 Error *local_err = NULL; 1645 1646 if (machine_type) { 1647 machine_class = find_machine(machine_type, machines); 1648 qdict_del(qdict, "type"); 1649 if (!machine_class) { 1650 error_setg(&local_err, "unsupported machine type"); 1651 } 1652 } else { 1653 machine_class = find_default_machine(machines); 1654 if (!machine_class) { 1655 error_setg(&local_err, "No machine specified, and there is no default"); 1656 } 1657 } 1658 1659 g_slist_free(machines); 1660 if (local_err) { 1661 error_append_hint(&local_err, "Use -machine help to list supported machines\n"); 1662 error_propagate(errp, local_err); 1663 } 1664 return machine_class; 1665 } 1666 1667 static int object_parse_property_opt(Object *obj, 1668 const char *name, const char *value, 1669 const char *skip, Error **errp) 1670 { 1671 if (g_str_equal(name, skip)) { 1672 return 0; 1673 } 1674 1675 if (!object_property_parse(obj, name, value, errp)) { 1676 return -1; 1677 } 1678 1679 return 0; 1680 } 1681 1682 /* *Non*recursively replace underscores with dashes in QDict keys. */ 1683 static void keyval_dashify(QDict *qdict, Error **errp) 1684 { 1685 const QDictEntry *ent, *next; 1686 char *p; 1687 1688 for (ent = qdict_first(qdict); ent; ent = next) { 1689 g_autofree char *new_key = NULL; 1690 1691 next = qdict_next(qdict, ent); 1692 if (!strchr(ent->key, '_')) { 1693 continue; 1694 } 1695 new_key = g_strdup(ent->key); 1696 for (p = new_key; *p; p++) { 1697 if (*p == '_') { 1698 *p = '-'; 1699 } 1700 } 1701 if (qdict_haskey(qdict, new_key)) { 1702 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key); 1703 return; 1704 } 1705 qobject_ref(ent->value); 1706 qdict_put_obj(qdict, new_key, ent->value); 1707 qdict_del(qdict, ent->key); 1708 } 1709 } 1710 1711 static void qemu_apply_legacy_machine_options(QDict *qdict) 1712 { 1713 const char *value; 1714 QObject *prop; 1715 1716 keyval_dashify(qdict, &error_fatal); 1717 1718 /* Legacy options do not correspond to MachineState properties. */ 1719 value = qdict_get_try_str(qdict, "accel"); 1720 if (value) { 1721 accelerators = g_strdup(value); 1722 qdict_del(qdict, "accel"); 1723 } 1724 1725 value = qdict_get_try_str(qdict, "igd-passthru"); 1726 if (value) { 1727 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value, 1728 false); 1729 qdict_del(qdict, "igd-passthru"); 1730 } 1731 1732 value = qdict_get_try_str(qdict, "kvm-shadow-mem"); 1733 if (value) { 1734 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value, 1735 false); 1736 qdict_del(qdict, "kvm-shadow-mem"); 1737 } 1738 1739 value = qdict_get_try_str(qdict, "kernel-irqchip"); 1740 if (value) { 1741 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value, 1742 false); 1743 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value, 1744 false); 1745 qdict_del(qdict, "kernel-irqchip"); 1746 } 1747 1748 value = qdict_get_try_str(qdict, "memory-backend"); 1749 if (value) { 1750 if (mem_path) { 1751 error_report("'-mem-path' can't be used together with" 1752 "'-machine memory-backend'"); 1753 exit(EXIT_FAILURE); 1754 } 1755 1756 /* Resolved later. */ 1757 ram_memdev_id = g_strdup(value); 1758 qdict_del(qdict, "memory-backend"); 1759 } 1760 1761 prop = qdict_get(qdict, "memory"); 1762 if (prop) { 1763 have_custom_ram_size = 1764 qobject_type(prop) == QTYPE_QDICT && 1765 qdict_haskey(qobject_to(QDict, prop), "size"); 1766 } 1767 } 1768 1769 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *)) 1770 { 1771 ObjectOption *opt, *next; 1772 1773 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) { 1774 const char *type = ObjectType_str(opt->opts->qom_type); 1775 if (type_opt_predicate(type)) { 1776 user_creatable_add_qapi(opt->opts, &error_fatal); 1777 qapi_free_ObjectOptions(opt->opts); 1778 QTAILQ_REMOVE(&object_opts, opt, next); 1779 g_free(opt); 1780 } 1781 } 1782 } 1783 1784 static void object_option_add_visitor(Visitor *v) 1785 { 1786 ObjectOption *opt = g_new0(ObjectOption, 1); 1787 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal); 1788 QTAILQ_INSERT_TAIL(&object_opts, opt, next); 1789 } 1790 1791 static void object_option_parse(const char *str) 1792 { 1793 QemuOpts *opts; 1794 const char *type; 1795 Visitor *v; 1796 1797 if (str[0] == '{') { 1798 QObject *obj = qobject_from_json(str, &error_fatal); 1799 1800 v = qobject_input_visitor_new(obj); 1801 qobject_unref(obj); 1802 } else { 1803 opts = qemu_opts_parse_noisily(qemu_find_opts("object"), 1804 str, true); 1805 if (!opts) { 1806 exit(1); 1807 } 1808 1809 type = qemu_opt_get(opts, "qom-type"); 1810 if (!type) { 1811 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type"); 1812 } 1813 if (user_creatable_print_help(type, opts)) { 1814 exit(0); 1815 } 1816 1817 v = opts_visitor_new(opts); 1818 } 1819 1820 object_option_add_visitor(v); 1821 visit_free(v); 1822 } 1823 1824 /* 1825 * Very early object creation, before the sandbox options have been activated. 1826 */ 1827 static bool object_create_pre_sandbox(const char *type) 1828 { 1829 /* 1830 * Objects should in general not get initialized "too early" without 1831 * a reason. If you add one, state the reason in a comment! 1832 */ 1833 1834 /* 1835 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU 1836 * affinity of threads. 1837 */ 1838 if (g_str_equal(type, "thread-context")) { 1839 return true; 1840 } 1841 1842 return false; 1843 } 1844 1845 /* 1846 * Initial object creation happens before all other 1847 * QEMU data types are created. The majority of objects 1848 * can be created at this point. The rng-egd object 1849 * cannot be created here, as it depends on the chardev 1850 * already existing. 1851 */ 1852 static bool object_create_early(const char *type) 1853 { 1854 /* 1855 * Objects should not be made "delayed" without a reason. If you 1856 * add one, state the reason in a comment! 1857 */ 1858 1859 /* Reason: already created. */ 1860 if (object_create_pre_sandbox(type)) { 1861 return false; 1862 } 1863 1864 /* Reason: property "chardev" */ 1865 if (g_str_equal(type, "rng-egd") || 1866 g_str_equal(type, "qtest")) { 1867 return false; 1868 } 1869 1870 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) 1871 /* Reason: cryptodev-vhost-user property "chardev" */ 1872 if (g_str_equal(type, "cryptodev-vhost-user")) { 1873 return false; 1874 } 1875 #endif 1876 1877 /* Reason: vhost-user-blk-server property "node-name" */ 1878 if (g_str_equal(type, "vhost-user-blk-server")) { 1879 return false; 1880 } 1881 /* 1882 * Reason: filter-* property "netdev" etc. 1883 */ 1884 if (g_str_equal(type, "filter-buffer") || 1885 g_str_equal(type, "filter-dump") || 1886 g_str_equal(type, "filter-mirror") || 1887 g_str_equal(type, "filter-redirector") || 1888 g_str_equal(type, "colo-compare") || 1889 g_str_equal(type, "filter-rewriter") || 1890 g_str_equal(type, "filter-replay")) { 1891 return false; 1892 } 1893 1894 /* 1895 * Allocation of large amounts of memory may delay 1896 * chardev initialization for too long, and trigger timeouts 1897 * on software that waits for a monitor socket to be created 1898 * (e.g. libvirt). 1899 */ 1900 if (g_str_has_prefix(type, "memory-backend-")) { 1901 return false; 1902 } 1903 1904 return true; 1905 } 1906 1907 static void qemu_apply_machine_options(QDict *qdict) 1908 { 1909 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal); 1910 1911 if (semihosting_enabled(false) && !semihosting_get_argc()) { 1912 /* fall back to the -kernel/-append */ 1913 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline); 1914 } 1915 1916 if (current_machine->smp.cpus > 1) { 1917 replay_add_blocker("smp"); 1918 } 1919 } 1920 1921 static void qemu_create_early_backends(void) 1922 { 1923 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); 1924 #if defined(CONFIG_SDL) 1925 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL); 1926 #else 1927 const bool use_sdl = false; 1928 #endif 1929 #if defined(CONFIG_GTK) 1930 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK); 1931 #else 1932 const bool use_gtk = false; 1933 #endif 1934 1935 if (dpy.has_window_close && !use_gtk && !use_sdl) { 1936 error_report("window-close is only valid for GTK and SDL, " 1937 "ignoring option"); 1938 } 1939 1940 qemu_display_early_init(&dpy); 1941 qemu_console_early_init(); 1942 1943 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) { 1944 #if defined(CONFIG_OPENGL) 1945 error_report("OpenGL is not supported by the display"); 1946 #else 1947 error_report("OpenGL support is disabled"); 1948 #endif 1949 exit(1); 1950 } 1951 1952 object_option_foreach_add(object_create_early); 1953 1954 /* spice needs the timers to be initialized by this point */ 1955 /* spice must initialize before audio as it changes the default audiodev */ 1956 /* spice must initialize before chardevs (for spicevmc and spiceport) */ 1957 qemu_spice.init(); 1958 1959 qemu_opts_foreach(qemu_find_opts("chardev"), 1960 chardev_init_func, NULL, &error_fatal); 1961 1962 #ifdef CONFIG_VIRTFS 1963 qemu_opts_foreach(qemu_find_opts("fsdev"), 1964 fsdev_init_func, NULL, &error_fatal); 1965 #endif 1966 1967 /* 1968 * Note: we need to create audio and block backends before 1969 * setting machine properties, so they can be referred to. 1970 */ 1971 configure_blockdev(&bdo_queue, machine_class, snapshot); 1972 audio_init_audiodevs(); 1973 if (default_audio) { 1974 audio_create_default_audiodevs(); 1975 } 1976 } 1977 1978 1979 /* 1980 * The remainder of object creation happens after the 1981 * creation of chardev, fsdev, net clients and device data types. 1982 */ 1983 static bool object_create_late(const char *type) 1984 { 1985 return !object_create_early(type) && !object_create_pre_sandbox(type); 1986 } 1987 1988 static void qemu_create_late_backends(void) 1989 { 1990 if (qtest_chrdev) { 1991 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal); 1992 } 1993 1994 net_init_clients(); 1995 1996 object_option_foreach_add(object_create_late); 1997 1998 if (tpm_init() < 0) { 1999 exit(1); 2000 } 2001 2002 qemu_opts_foreach(qemu_find_opts("mon"), 2003 mon_init_func, NULL, &error_fatal); 2004 2005 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0) 2006 exit(1); 2007 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0) 2008 exit(1); 2009 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0) 2010 exit(1); 2011 2012 /* now chardevs have been created we may have semihosting to connect */ 2013 qemu_semihosting_chardev_init(); 2014 } 2015 2016 static void qemu_resolve_machine_memdev(void) 2017 { 2018 if (ram_memdev_id) { 2019 Object *backend; 2020 ram_addr_t backend_size; 2021 2022 backend = object_resolve_path_type(ram_memdev_id, 2023 TYPE_MEMORY_BACKEND, NULL); 2024 if (!backend) { 2025 error_report("Memory backend '%s' not found", ram_memdev_id); 2026 exit(EXIT_FAILURE); 2027 } 2028 if (!have_custom_ram_size) { 2029 backend_size = object_property_get_uint(backend, "size", &error_abort); 2030 current_machine->ram_size = backend_size; 2031 } 2032 object_property_set_link(OBJECT(current_machine), 2033 "memory-backend", backend, &error_fatal); 2034 } 2035 } 2036 2037 static void parse_memory_options(void) 2038 { 2039 QemuOpts *opts = qemu_find_opts_singleton("memory"); 2040 QDict *dict, *prop; 2041 const char *mem_str; 2042 Location loc; 2043 2044 loc_push_none(&loc); 2045 qemu_opts_loc_restore(opts); 2046 2047 prop = qdict_new(); 2048 2049 if (qemu_opt_get_size(opts, "size", 0) != 0) { 2050 /* Fix up legacy suffix-less format */ 2051 mem_str = qemu_opt_get(opts, "size"); 2052 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) { 2053 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str); 2054 qdict_put_str(prop, "size", mib_str); 2055 } else { 2056 qdict_put_str(prop, "size", mem_str); 2057 } 2058 } 2059 2060 if (qemu_opt_get(opts, "maxmem")) { 2061 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem")); 2062 } 2063 if (qemu_opt_get(opts, "slots")) { 2064 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots")); 2065 } 2066 2067 dict = qdict_new(); 2068 qdict_put(dict, "memory", prop); 2069 keyval_merge(machine_opts_dict, dict, &error_fatal); 2070 qobject_unref(dict); 2071 loc_pop(&loc); 2072 } 2073 2074 static void qemu_create_machine(QDict *qdict) 2075 { 2076 MachineClass *machine_class = select_machine(qdict, &error_fatal); 2077 object_set_machine_compat_props(machine_class->compat_props); 2078 2079 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class))); 2080 object_property_add_child(object_get_root(), "machine", 2081 OBJECT(current_machine)); 2082 object_property_add_child(container_get(OBJECT(current_machine), 2083 "/unattached"), 2084 "sysbus", OBJECT(sysbus_get_default())); 2085 2086 if (machine_class->minimum_page_bits) { 2087 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) { 2088 /* This would be a board error: specifying a minimum smaller than 2089 * a target's compile-time fixed setting. 2090 */ 2091 g_assert_not_reached(); 2092 } 2093 } 2094 2095 cpu_exec_init_all(); 2096 page_size_init(); 2097 2098 if (machine_class->hw_version) { 2099 qemu_set_hw_version(machine_class->hw_version); 2100 } 2101 2102 /* 2103 * Get the default machine options from the machine if it is not already 2104 * specified either by the configuration file or by the command line. 2105 */ 2106 if (machine_class->default_machine_opts) { 2107 QDict *default_opts = 2108 keyval_parse(machine_class->default_machine_opts, NULL, NULL, 2109 &error_abort); 2110 qemu_apply_legacy_machine_options(default_opts); 2111 object_set_properties_from_keyval(OBJECT(current_machine), default_opts, 2112 false, &error_abort); 2113 qobject_unref(default_opts); 2114 } 2115 } 2116 2117 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp) 2118 { 2119 GlobalProperty *g; 2120 2121 g = g_malloc0(sizeof(*g)); 2122 g->driver = qemu_opt_get(opts, "driver"); 2123 g->property = qemu_opt_get(opts, "property"); 2124 g->value = qemu_opt_get(opts, "value"); 2125 qdev_prop_register_global(g); 2126 return 0; 2127 } 2128 2129 /* 2130 * Return whether configuration group @group is stored in QemuOpts, or 2131 * recorded as one or more QDicts by qemu_record_config_group. 2132 */ 2133 static bool is_qemuopts_group(const char *group) 2134 { 2135 if (g_str_equal(group, "object") || 2136 g_str_equal(group, "audiodev") || 2137 g_str_equal(group, "machine") || 2138 g_str_equal(group, "smp-opts") || 2139 g_str_equal(group, "boot-opts")) { 2140 return false; 2141 } 2142 return true; 2143 } 2144 2145 static void qemu_record_config_group(const char *group, QDict *dict, 2146 bool from_json, Error **errp) 2147 { 2148 if (g_str_equal(group, "object")) { 2149 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2150 object_option_add_visitor(v); 2151 visit_free(v); 2152 2153 } else if (g_str_equal(group, "audiodev")) { 2154 Audiodev *dev = NULL; 2155 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2156 if (visit_type_Audiodev(v, NULL, &dev, errp)) { 2157 audio_define(dev); 2158 } 2159 visit_free(v); 2160 2161 } else if (g_str_equal(group, "machine")) { 2162 /* 2163 * Cannot merge string-valued and type-safe dictionaries, so JSON 2164 * is not accepted yet for -M. 2165 */ 2166 assert(!from_json); 2167 keyval_merge(machine_opts_dict, dict, errp); 2168 } else if (g_str_equal(group, "smp-opts")) { 2169 machine_merge_property("smp", dict, &error_fatal); 2170 } else if (g_str_equal(group, "boot-opts")) { 2171 machine_merge_property("boot", dict, &error_fatal); 2172 } else { 2173 abort(); 2174 } 2175 } 2176 2177 /* 2178 * Parse non-QemuOpts config file groups, pass the rest to 2179 * qemu_config_do_parse. 2180 */ 2181 static void qemu_parse_config_group(const char *group, QDict *qdict, 2182 void *opaque, Error **errp) 2183 { 2184 QObject *crumpled; 2185 if (is_qemuopts_group(group)) { 2186 qemu_config_do_parse(group, qdict, opaque, errp); 2187 return; 2188 } 2189 2190 crumpled = qdict_crumple(qdict, errp); 2191 if (!crumpled) { 2192 return; 2193 } 2194 switch (qobject_type(crumpled)) { 2195 case QTYPE_QDICT: 2196 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp); 2197 break; 2198 case QTYPE_QLIST: 2199 error_setg(errp, "Lists cannot be at top level of a configuration section"); 2200 break; 2201 default: 2202 g_assert_not_reached(); 2203 } 2204 qobject_unref(crumpled); 2205 } 2206 2207 static void qemu_read_default_config_file(Error **errp) 2208 { 2209 ERRP_GUARD(); 2210 int ret; 2211 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf"); 2212 2213 ret = qemu_read_config_file(file, qemu_parse_config_group, errp); 2214 if (ret < 0) { 2215 if (ret == -ENOENT) { 2216 error_free(*errp); 2217 *errp = NULL; 2218 } 2219 } 2220 } 2221 2222 static void qemu_set_option(const char *str, Error **errp) 2223 { 2224 char group[64], id[64], arg[64]; 2225 QemuOptsList *list; 2226 QemuOpts *opts; 2227 int rc, offset; 2228 2229 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); 2230 if (rc < 3 || str[offset] != '=') { 2231 error_setg(errp, "can't parse: \"%s\"", str); 2232 return; 2233 } 2234 2235 if (!is_qemuopts_group(group)) { 2236 error_setg(errp, "-set is not supported with %s", group); 2237 } else { 2238 list = qemu_find_opts_err(group, errp); 2239 if (list) { 2240 opts = qemu_opts_find(list, id); 2241 if (!opts) { 2242 error_setg(errp, "there is no %s \"%s\" defined", group, id); 2243 return; 2244 } 2245 qemu_opt_set(opts, arg, str + offset + 1, errp); 2246 } 2247 } 2248 } 2249 2250 static void user_register_global_props(void) 2251 { 2252 qemu_opts_foreach(qemu_find_opts("global"), 2253 global_init_func, NULL, NULL); 2254 } 2255 2256 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp) 2257 { 2258 icount_configure(opts, errp); 2259 return 0; 2260 } 2261 2262 static int accelerator_set_property(void *opaque, 2263 const char *name, const char *value, 2264 Error **errp) 2265 { 2266 return object_parse_property_opt(opaque, name, value, "accel", errp); 2267 } 2268 2269 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp) 2270 { 2271 bool *p_init_failed = opaque; 2272 const char *acc = qemu_opt_get(opts, "accel"); 2273 AccelClass *ac = accel_find(acc); 2274 AccelState *accel; 2275 int ret; 2276 bool qtest_with_kvm; 2277 2278 if (!acc) { 2279 error_setg(errp, QERR_MISSING_PARAMETER, "accel"); 2280 goto bad; 2281 } 2282 2283 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL; 2284 2285 if (!ac) { 2286 if (!qtest_with_kvm) { 2287 error_report("invalid accelerator %s", acc); 2288 } 2289 goto bad; 2290 } 2291 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac))); 2292 object_apply_compat_props(OBJECT(accel)); 2293 qemu_opt_foreach(opts, accelerator_set_property, 2294 accel, 2295 &error_fatal); 2296 /* 2297 * If legacy -singlestep option is set, honour it for TCG and 2298 * silently ignore for any other accelerator (which is how this 2299 * option has always behaved). 2300 */ 2301 if (opt_one_insn_per_tb) { 2302 /* 2303 * This will always succeed for TCG, and we want to ignore 2304 * the error from trying to set a nonexistent property 2305 * on any other accelerator. 2306 */ 2307 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL); 2308 } 2309 ret = accel_init_machine(accel, current_machine); 2310 if (ret < 0) { 2311 if (!qtest_with_kvm || ret != -ENOENT) { 2312 error_report("failed to initialize %s: %s", acc, strerror(-ret)); 2313 } 2314 goto bad; 2315 } 2316 2317 return 1; 2318 2319 bad: 2320 *p_init_failed = true; 2321 return 0; 2322 } 2323 2324 static void configure_accelerators(const char *progname) 2325 { 2326 bool init_failed = false; 2327 2328 qemu_opts_foreach(qemu_find_opts("icount"), 2329 do_configure_icount, NULL, &error_fatal); 2330 2331 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) { 2332 char **accel_list, **tmp; 2333 2334 if (accelerators == NULL) { 2335 /* Select the default accelerator */ 2336 bool have_tcg = accel_find("tcg"); 2337 bool have_kvm = accel_find("kvm"); 2338 2339 if (have_tcg && have_kvm) { 2340 if (g_str_has_suffix(progname, "kvm")) { 2341 /* If the program name ends with "kvm", we prefer KVM */ 2342 accelerators = "kvm:tcg"; 2343 } else { 2344 accelerators = "tcg:kvm"; 2345 } 2346 } else if (have_kvm) { 2347 accelerators = "kvm"; 2348 } else if (have_tcg) { 2349 accelerators = "tcg"; 2350 } else { 2351 error_report("No accelerator selected and" 2352 " no default accelerator available"); 2353 exit(1); 2354 } 2355 } 2356 accel_list = g_strsplit(accelerators, ":", 0); 2357 2358 for (tmp = accel_list; *tmp; tmp++) { 2359 /* 2360 * Filter invalid accelerators here, to prevent obscenities 2361 * such as "-machine accel=tcg,,thread=single". 2362 */ 2363 if (accel_find(*tmp)) { 2364 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true); 2365 } else { 2366 init_failed = true; 2367 error_report("invalid accelerator %s", *tmp); 2368 } 2369 } 2370 g_strfreev(accel_list); 2371 } else { 2372 if (accelerators != NULL) { 2373 error_report("The -accel and \"-machine accel=\" options are incompatible"); 2374 exit(1); 2375 } 2376 } 2377 2378 if (!qemu_opts_foreach(qemu_find_opts("accel"), 2379 do_configure_accelerator, &init_failed, &error_fatal)) { 2380 if (!init_failed) { 2381 error_report("no accelerator found"); 2382 } 2383 exit(1); 2384 } 2385 2386 if (init_failed && !qtest_chrdev) { 2387 error_report("falling back to %s", current_accel_name()); 2388 } 2389 2390 if (icount_enabled() && !tcg_enabled()) { 2391 error_report("-icount is not allowed with hardware virtualization"); 2392 exit(1); 2393 } 2394 } 2395 2396 static void qemu_validate_options(const QDict *machine_opts) 2397 { 2398 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel"); 2399 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd"); 2400 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append"); 2401 2402 if (kernel_filename == NULL) { 2403 if (kernel_cmdline != NULL) { 2404 error_report("-append only allowed with -kernel option"); 2405 exit(1); 2406 } 2407 2408 if (initrd_filename != NULL) { 2409 error_report("-initrd only allowed with -kernel option"); 2410 exit(1); 2411 } 2412 } 2413 2414 if (loadvm && preconfig_requested) { 2415 error_report("'preconfig' and 'loadvm' options are " 2416 "mutually exclusive"); 2417 exit(EXIT_FAILURE); 2418 } 2419 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) { 2420 error_report("'preconfig' supports '-incoming defer' only"); 2421 exit(EXIT_FAILURE); 2422 } 2423 2424 #ifdef CONFIG_CURSES 2425 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) { 2426 error_report("curses display cannot be used with -daemonize"); 2427 exit(1); 2428 } 2429 #endif 2430 } 2431 2432 static void qemu_process_sugar_options(void) 2433 { 2434 if (mem_prealloc) { 2435 QObject *smp = qdict_get(machine_opts_dict, "smp"); 2436 if (smp && qobject_type(smp) == QTYPE_QDICT) { 2437 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus"); 2438 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) { 2439 const char *val = qstring_get_str(qobject_to(QString, cpus)); 2440 object_register_sugar_prop("memory-backend", "prealloc-threads", 2441 val, false); 2442 } 2443 } 2444 object_register_sugar_prop("memory-backend", "prealloc", "on", false); 2445 } 2446 } 2447 2448 /* -action processing */ 2449 2450 /* 2451 * Process all the -action parameters parsed from cmdline. 2452 */ 2453 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp) 2454 { 2455 Error *local_err = NULL; 2456 QDict *qdict = qemu_opts_to_qdict(opts, NULL); 2457 QObject *ret = NULL; 2458 qmp_marshal_set_action(qdict, &ret, &local_err); 2459 qobject_unref(ret); 2460 qobject_unref(qdict); 2461 if (local_err) { 2462 error_propagate(errp, local_err); 2463 return 1; 2464 } 2465 return 0; 2466 } 2467 2468 static void qemu_process_early_options(void) 2469 { 2470 qemu_opts_foreach(qemu_find_opts("name"), 2471 parse_name, NULL, &error_fatal); 2472 2473 object_option_foreach_add(object_create_pre_sandbox); 2474 2475 #ifdef CONFIG_SECCOMP 2476 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL); 2477 if (olist) { 2478 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal); 2479 } 2480 #endif 2481 2482 if (qemu_opts_foreach(qemu_find_opts("action"), 2483 process_runstate_actions, NULL, &error_fatal)) { 2484 exit(1); 2485 } 2486 2487 #ifndef _WIN32 2488 qemu_opts_foreach(qemu_find_opts("add-fd"), 2489 parse_add_fd, NULL, &error_fatal); 2490 2491 qemu_opts_foreach(qemu_find_opts("add-fd"), 2492 cleanup_add_fd, NULL, &error_fatal); 2493 #endif 2494 2495 /* Open the logfile at this point and set the log mask if necessary. */ 2496 { 2497 int mask = 0; 2498 if (log_mask) { 2499 mask = qemu_str_to_log_mask(log_mask); 2500 if (!mask) { 2501 qemu_print_log_usage(stdout); 2502 exit(1); 2503 } 2504 } 2505 qemu_set_log_filename_flags(log_file, mask, &error_fatal); 2506 } 2507 2508 qemu_add_default_firmwarepath(); 2509 } 2510 2511 static void qemu_process_help_options(void) 2512 { 2513 /* 2514 * Check for -cpu help and -device help before we call select_machine(), 2515 * which will return an error if the architecture has no default machine 2516 * type and the user did not specify one, so that the user doesn't need 2517 * to say '-cpu help -machine something'. 2518 */ 2519 if (cpu_option && is_help_option(cpu_option)) { 2520 list_cpus(); 2521 exit(0); 2522 } 2523 2524 if (qemu_opts_foreach(qemu_find_opts("device"), 2525 device_help_func, NULL, NULL)) { 2526 exit(0); 2527 } 2528 2529 /* -L help lists the data directories and exits. */ 2530 if (list_data_dirs) { 2531 qemu_list_data_dirs(); 2532 exit(0); 2533 } 2534 } 2535 2536 static void qemu_maybe_daemonize(const char *pid_file) 2537 { 2538 Error *err = NULL; 2539 2540 os_daemonize(); 2541 rcu_disable_atfork(); 2542 2543 if (pid_file) { 2544 char *pid_file_realpath = NULL; 2545 2546 if (!qemu_write_pidfile(pid_file, &err)) { 2547 error_reportf_err(err, "cannot create PID file: "); 2548 exit(1); 2549 } 2550 2551 pid_file_realpath = g_malloc0(PATH_MAX); 2552 if (!realpath(pid_file, pid_file_realpath)) { 2553 if (errno != ENOENT) { 2554 warn_report("not removing PID file on exit: cannot resolve PID " 2555 "file path: %s: %s", pid_file, strerror(errno)); 2556 } 2557 return; 2558 } 2559 2560 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) { 2561 .notifier = { 2562 .notify = qemu_unlink_pidfile, 2563 }, 2564 .pid_file_realpath = pid_file_realpath, 2565 }; 2566 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier); 2567 } 2568 } 2569 2570 static void qemu_init_displays(void) 2571 { 2572 DisplayState *ds; 2573 2574 /* init local displays */ 2575 ds = init_displaystate(); 2576 qemu_display_init(ds, &dpy); 2577 2578 /* must be after terminal init, SDL library changes signal handlers */ 2579 os_setup_signal_handling(); 2580 2581 /* init remote displays */ 2582 #ifdef CONFIG_VNC 2583 qemu_opts_foreach(qemu_find_opts("vnc"), 2584 vnc_init_func, NULL, &error_fatal); 2585 #endif 2586 2587 if (using_spice) { 2588 qemu_spice.display_init(); 2589 } 2590 } 2591 2592 static void qemu_init_board(void) 2593 { 2594 /* process plugin before CPUs are created, but once -smp has been parsed */ 2595 qemu_plugin_load_list(&plugin_list, &error_fatal); 2596 2597 /* From here on we enter MACHINE_PHASE_INITIALIZED. */ 2598 machine_run_board_init(current_machine, mem_path, &error_fatal); 2599 2600 drive_check_orphaned(); 2601 2602 realtime_init(); 2603 } 2604 2605 static void qemu_create_cli_devices(void) 2606 { 2607 DeviceOption *opt; 2608 2609 soundhw_init(); 2610 2611 qemu_opts_foreach(qemu_find_opts("fw_cfg"), 2612 parse_fw_cfg, fw_cfg_find(), &error_fatal); 2613 2614 /* init USB devices */ 2615 if (machine_usb(current_machine)) { 2616 if (foreach_device_config(DEV_USB, usb_parse) < 0) 2617 exit(1); 2618 } 2619 2620 /* init generic devices */ 2621 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE); 2622 qemu_opts_foreach(qemu_find_opts("device"), 2623 device_init_func, NULL, &error_fatal); 2624 QTAILQ_FOREACH(opt, &device_opts, next) { 2625 DeviceState *dev; 2626 loc_push_restore(&opt->loc); 2627 /* 2628 * TODO Eventually we should call qmp_device_add() here to make sure it 2629 * behaves the same, but QMP still has to accept incorrectly typed 2630 * options until libvirt is fixed and we want to be strict on the CLI 2631 * from the start, so call qdev_device_add_from_qdict() directly for 2632 * now. 2633 */ 2634 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal); 2635 object_unref(OBJECT(dev)); 2636 loc_pop(&opt->loc); 2637 } 2638 rom_reset_order_override(); 2639 } 2640 2641 static void qemu_machine_creation_done(void) 2642 { 2643 MachineState *machine = MACHINE(qdev_get_machine()); 2644 2645 /* Did we create any drives that we failed to create a device for? */ 2646 drive_check_orphaned(); 2647 2648 /* Don't warn about the default network setup that you get if 2649 * no command line -net or -netdev options are specified. There 2650 * are two cases that we would otherwise complain about: 2651 * (1) board doesn't support a NIC but the implicit "-net nic" 2652 * requested one 2653 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic" 2654 * sets up a nic that isn't connected to anything. 2655 */ 2656 if (!default_net && (!qtest_enabled() || has_defaults)) { 2657 net_check_clients(); 2658 } 2659 2660 qdev_prop_check_globals(); 2661 2662 qdev_machine_creation_done(); 2663 2664 if (machine->cgs) { 2665 /* 2666 * Verify that Confidential Guest Support has actually been initialized 2667 */ 2668 assert(machine->cgs->ready); 2669 } 2670 2671 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) { 2672 exit(1); 2673 } 2674 if (!vga_interface_created && !default_vga && 2675 vga_interface_type != VGA_NONE) { 2676 warn_report("A -vga option was passed but this machine " 2677 "type does not use that option; " 2678 "No VGA device has been created"); 2679 } 2680 } 2681 2682 void qmp_x_exit_preconfig(Error **errp) 2683 { 2684 if (phase_check(PHASE_MACHINE_INITIALIZED)) { 2685 error_setg(errp, "The command is permitted only before machine initialization"); 2686 return; 2687 } 2688 2689 qemu_init_board(); 2690 qemu_create_cli_devices(); 2691 qemu_machine_creation_done(); 2692 2693 if (loadvm) { 2694 load_snapshot(loadvm, NULL, false, NULL, &error_fatal); 2695 } 2696 if (replay_mode != REPLAY_MODE_NONE) { 2697 replay_vmstate_init(); 2698 } 2699 2700 if (incoming) { 2701 Error *local_err = NULL; 2702 if (strcmp(incoming, "defer") != 0) { 2703 qmp_migrate_incoming(incoming, false, NULL, &local_err); 2704 if (local_err) { 2705 error_reportf_err(local_err, "-incoming %s: ", incoming); 2706 exit(1); 2707 } 2708 } 2709 } else if (autostart) { 2710 qmp_cont(NULL); 2711 } 2712 } 2713 2714 void qemu_init(int argc, char **argv) 2715 { 2716 QemuOpts *opts; 2717 QemuOpts *icount_opts = NULL, *accel_opts = NULL; 2718 QemuOptsList *olist; 2719 int optind; 2720 const char *optarg; 2721 MachineClass *machine_class; 2722 bool userconfig = true; 2723 FILE *vmstate_dump_file = NULL; 2724 2725 qemu_add_opts(&qemu_drive_opts); 2726 qemu_add_drive_opts(&qemu_legacy_drive_opts); 2727 qemu_add_drive_opts(&qemu_common_drive_opts); 2728 qemu_add_drive_opts(&qemu_drive_opts); 2729 qemu_add_drive_opts(&bdrv_runtime_opts); 2730 qemu_add_opts(&qemu_chardev_opts); 2731 qemu_add_opts(&qemu_device_opts); 2732 qemu_add_opts(&qemu_netdev_opts); 2733 qemu_add_opts(&qemu_nic_opts); 2734 qemu_add_opts(&qemu_net_opts); 2735 qemu_add_opts(&qemu_rtc_opts); 2736 qemu_add_opts(&qemu_global_opts); 2737 qemu_add_opts(&qemu_mon_opts); 2738 qemu_add_opts(&qemu_trace_opts); 2739 qemu_plugin_add_opts(); 2740 qemu_add_opts(&qemu_option_rom_opts); 2741 qemu_add_opts(&qemu_accel_opts); 2742 qemu_add_opts(&qemu_mem_opts); 2743 qemu_add_opts(&qemu_smp_opts); 2744 qemu_add_opts(&qemu_boot_opts); 2745 qemu_add_opts(&qemu_add_fd_opts); 2746 qemu_add_opts(&qemu_object_opts); 2747 qemu_add_opts(&qemu_tpmdev_opts); 2748 qemu_add_opts(&qemu_overcommit_opts); 2749 qemu_add_opts(&qemu_msg_opts); 2750 qemu_add_opts(&qemu_name_opts); 2751 qemu_add_opts(&qemu_numa_opts); 2752 qemu_add_opts(&qemu_icount_opts); 2753 qemu_add_opts(&qemu_semihosting_config_opts); 2754 qemu_add_opts(&qemu_fw_cfg_opts); 2755 qemu_add_opts(&qemu_action_opts); 2756 qemu_add_run_with_opts(); 2757 module_call_init(MODULE_INIT_OPTS); 2758 2759 error_init(argv[0]); 2760 qemu_init_exec_dir(argv[0]); 2761 2762 qemu_init_arch_modules(); 2763 2764 qemu_init_subsystems(); 2765 2766 /* first pass of option parsing */ 2767 optind = 1; 2768 while (optind < argc) { 2769 if (argv[optind][0] != '-') { 2770 /* disk image */ 2771 optind++; 2772 } else { 2773 const QEMUOption *popt; 2774 2775 popt = lookup_opt(argc, argv, &optarg, &optind); 2776 switch (popt->index) { 2777 case QEMU_OPTION_nouserconfig: 2778 userconfig = false; 2779 break; 2780 } 2781 } 2782 } 2783 2784 machine_opts_dict = qdict_new(); 2785 if (userconfig) { 2786 qemu_read_default_config_file(&error_fatal); 2787 } 2788 2789 /* second pass of option parsing */ 2790 optind = 1; 2791 for(;;) { 2792 if (optind >= argc) 2793 break; 2794 if (argv[optind][0] != '-') { 2795 loc_set_cmdline(argv, optind, 1); 2796 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS); 2797 } else { 2798 const QEMUOption *popt; 2799 2800 popt = lookup_opt(argc, argv, &optarg, &optind); 2801 if (!(popt->arch_mask & arch_type)) { 2802 error_report("Option not supported for this target"); 2803 exit(1); 2804 } 2805 switch(popt->index) { 2806 case QEMU_OPTION_cpu: 2807 /* hw initialization will check this */ 2808 cpu_option = optarg; 2809 break; 2810 case QEMU_OPTION_hda: 2811 case QEMU_OPTION_hdb: 2812 case QEMU_OPTION_hdc: 2813 case QEMU_OPTION_hdd: 2814 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg, 2815 HD_OPTS); 2816 break; 2817 case QEMU_OPTION_blockdev: 2818 { 2819 Visitor *v; 2820 BlockdevOptionsQueueEntry *bdo; 2821 2822 v = qobject_input_visitor_new_str(optarg, "driver", 2823 &error_fatal); 2824 2825 bdo = g_new(BlockdevOptionsQueueEntry, 1); 2826 visit_type_BlockdevOptions(v, NULL, &bdo->bdo, 2827 &error_fatal); 2828 visit_free(v); 2829 loc_save(&bdo->loc); 2830 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry); 2831 break; 2832 } 2833 case QEMU_OPTION_drive: 2834 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"), 2835 optarg, false); 2836 if (opts == NULL) { 2837 exit(1); 2838 } 2839 break; 2840 case QEMU_OPTION_set: 2841 qemu_set_option(optarg, &error_fatal); 2842 break; 2843 case QEMU_OPTION_global: 2844 if (qemu_global_option(optarg) != 0) 2845 exit(1); 2846 break; 2847 case QEMU_OPTION_mtdblock: 2848 drive_add(IF_MTD, -1, optarg, MTD_OPTS); 2849 break; 2850 case QEMU_OPTION_sd: 2851 drive_add(IF_SD, -1, optarg, SD_OPTS); 2852 break; 2853 case QEMU_OPTION_pflash: 2854 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS); 2855 break; 2856 case QEMU_OPTION_snapshot: 2857 snapshot = 1; 2858 replay_add_blocker("-snapshot"); 2859 break; 2860 case QEMU_OPTION_numa: 2861 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"), 2862 optarg, true); 2863 if (!opts) { 2864 exit(1); 2865 } 2866 break; 2867 case QEMU_OPTION_display: 2868 parse_display(optarg); 2869 break; 2870 case QEMU_OPTION_nographic: 2871 qdict_put_str(machine_opts_dict, "graphics", "off"); 2872 nographic = true; 2873 dpy.type = DISPLAY_TYPE_NONE; 2874 break; 2875 case QEMU_OPTION_portrait: 2876 graphic_rotate = 90; 2877 break; 2878 case QEMU_OPTION_rotate: 2879 graphic_rotate = strtol(optarg, (char **) &optarg, 10); 2880 if (graphic_rotate != 0 && graphic_rotate != 90 && 2881 graphic_rotate != 180 && graphic_rotate != 270) { 2882 error_report("only 90, 180, 270 deg rotation is available"); 2883 exit(1); 2884 } 2885 break; 2886 case QEMU_OPTION_kernel: 2887 qdict_put_str(machine_opts_dict, "kernel", optarg); 2888 break; 2889 case QEMU_OPTION_initrd: 2890 qdict_put_str(machine_opts_dict, "initrd", optarg); 2891 break; 2892 case QEMU_OPTION_append: 2893 qdict_put_str(machine_opts_dict, "append", optarg); 2894 break; 2895 case QEMU_OPTION_dtb: 2896 qdict_put_str(machine_opts_dict, "dtb", optarg); 2897 break; 2898 case QEMU_OPTION_cdrom: 2899 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS); 2900 break; 2901 case QEMU_OPTION_boot: 2902 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg); 2903 break; 2904 case QEMU_OPTION_fda: 2905 case QEMU_OPTION_fdb: 2906 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda, 2907 optarg, FD_OPTS); 2908 break; 2909 case QEMU_OPTION_no_fd_bootchk: 2910 fd_bootchk = 0; 2911 break; 2912 case QEMU_OPTION_netdev: 2913 default_net = 0; 2914 if (netdev_is_modern(optarg)) { 2915 netdev_parse_modern(optarg); 2916 } else { 2917 net_client_parse(qemu_find_opts("netdev"), optarg); 2918 } 2919 break; 2920 case QEMU_OPTION_nic: 2921 default_net = 0; 2922 net_client_parse(qemu_find_opts("nic"), optarg); 2923 break; 2924 case QEMU_OPTION_net: 2925 default_net = 0; 2926 net_client_parse(qemu_find_opts("net"), optarg); 2927 break; 2928 #ifdef CONFIG_LIBISCSI 2929 case QEMU_OPTION_iscsi: 2930 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"), 2931 optarg, false); 2932 if (!opts) { 2933 exit(1); 2934 } 2935 break; 2936 #endif 2937 case QEMU_OPTION_audiodev: 2938 default_audio = 0; 2939 audio_parse_option(optarg); 2940 break; 2941 case QEMU_OPTION_audio: { 2942 bool help; 2943 char *model = NULL; 2944 Audiodev *dev = NULL; 2945 Visitor *v; 2946 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal); 2947 default_audio = 0; 2948 if (help || (qdict_haskey(dict, "driver") && 2949 is_help_option(qdict_get_str(dict, "driver")))) { 2950 audio_help(); 2951 exit(EXIT_SUCCESS); 2952 } 2953 if (!qdict_haskey(dict, "id")) { 2954 qdict_put_str(dict, "id", "audiodev0"); 2955 } 2956 if (qdict_haskey(dict, "model")) { 2957 model = g_strdup(qdict_get_str(dict, "model")); 2958 qdict_del(dict, "model"); 2959 if (is_help_option(model)) { 2960 show_valid_soundhw(); 2961 exit(0); 2962 } 2963 } 2964 v = qobject_input_visitor_new_keyval(QOBJECT(dict)); 2965 qobject_unref(dict); 2966 visit_type_Audiodev(v, NULL, &dev, &error_fatal); 2967 visit_free(v); 2968 if (model) { 2969 audio_define(dev); 2970 select_soundhw(model, dev->id); 2971 g_free(model); 2972 } else { 2973 audio_define_default(dev, &error_fatal); 2974 } 2975 break; 2976 } 2977 case QEMU_OPTION_h: 2978 help(0); 2979 break; 2980 case QEMU_OPTION_version: 2981 version(); 2982 exit(0); 2983 break; 2984 case QEMU_OPTION_m: 2985 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true); 2986 if (opts == NULL) { 2987 exit(1); 2988 } 2989 break; 2990 #ifdef CONFIG_TPM 2991 case QEMU_OPTION_tpmdev: 2992 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) { 2993 exit(1); 2994 } 2995 break; 2996 #endif 2997 case QEMU_OPTION_mempath: 2998 mem_path = optarg; 2999 break; 3000 case QEMU_OPTION_mem_prealloc: 3001 mem_prealloc = 1; 3002 break; 3003 case QEMU_OPTION_d: 3004 log_mask = optarg; 3005 break; 3006 case QEMU_OPTION_D: 3007 log_file = optarg; 3008 break; 3009 case QEMU_OPTION_DFILTER: 3010 qemu_set_dfilter_ranges(optarg, &error_fatal); 3011 break; 3012 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX) 3013 case QEMU_OPTION_perfmap: 3014 perf_enable_perfmap(); 3015 break; 3016 case QEMU_OPTION_jitdump: 3017 perf_enable_jitdump(); 3018 break; 3019 #endif 3020 case QEMU_OPTION_seed: 3021 qemu_guest_random_seed_main(optarg, &error_fatal); 3022 break; 3023 case QEMU_OPTION_s: 3024 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT); 3025 break; 3026 case QEMU_OPTION_gdb: 3027 add_device_config(DEV_GDB, optarg); 3028 break; 3029 case QEMU_OPTION_L: 3030 if (is_help_option(optarg)) { 3031 list_data_dirs = true; 3032 } else { 3033 qemu_add_data_dir(g_strdup(optarg)); 3034 } 3035 break; 3036 case QEMU_OPTION_bios: 3037 qdict_put_str(machine_opts_dict, "firmware", optarg); 3038 break; 3039 case QEMU_OPTION_singlestep: 3040 opt_one_insn_per_tb = true; 3041 break; 3042 case QEMU_OPTION_S: 3043 autostart = 0; 3044 break; 3045 case QEMU_OPTION_k: 3046 keyboard_layout = optarg; 3047 break; 3048 case QEMU_OPTION_vga: 3049 vga_model = optarg; 3050 default_vga = 0; 3051 break; 3052 case QEMU_OPTION_g: 3053 { 3054 const char *p; 3055 int w, h, depth; 3056 p = optarg; 3057 w = strtol(p, (char **)&p, 10); 3058 if (w <= 0) { 3059 graphic_error: 3060 error_report("invalid resolution or depth"); 3061 exit(1); 3062 } 3063 if (*p != 'x') 3064 goto graphic_error; 3065 p++; 3066 h = strtol(p, (char **)&p, 10); 3067 if (h <= 0) 3068 goto graphic_error; 3069 if (*p == 'x') { 3070 p++; 3071 depth = strtol(p, (char **)&p, 10); 3072 if (depth != 1 && depth != 2 && depth != 4 && 3073 depth != 8 && depth != 15 && depth != 16 && 3074 depth != 24 && depth != 32) 3075 goto graphic_error; 3076 } else if (*p == '\0') { 3077 depth = graphic_depth; 3078 } else { 3079 goto graphic_error; 3080 } 3081 3082 graphic_width = w; 3083 graphic_height = h; 3084 graphic_depth = depth; 3085 } 3086 break; 3087 case QEMU_OPTION_echr: 3088 { 3089 char *r; 3090 term_escape_char = strtol(optarg, &r, 0); 3091 if (r == optarg) 3092 printf("Bad argument to echr\n"); 3093 break; 3094 } 3095 case QEMU_OPTION_monitor: 3096 default_monitor = 0; 3097 if (strncmp(optarg, "none", 4)) { 3098 monitor_parse(optarg, "readline", false); 3099 } 3100 break; 3101 case QEMU_OPTION_qmp: 3102 monitor_parse(optarg, "control", false); 3103 default_monitor = 0; 3104 break; 3105 case QEMU_OPTION_qmp_pretty: 3106 monitor_parse(optarg, "control", true); 3107 default_monitor = 0; 3108 break; 3109 case QEMU_OPTION_mon: 3110 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg, 3111 true); 3112 if (!opts) { 3113 exit(1); 3114 } 3115 default_monitor = 0; 3116 break; 3117 case QEMU_OPTION_chardev: 3118 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), 3119 optarg, true); 3120 if (!opts) { 3121 exit(1); 3122 } 3123 break; 3124 case QEMU_OPTION_fsdev: 3125 olist = qemu_find_opts("fsdev"); 3126 if (!olist) { 3127 error_report("fsdev support is disabled"); 3128 exit(1); 3129 } 3130 opts = qemu_opts_parse_noisily(olist, optarg, true); 3131 if (!opts) { 3132 exit(1); 3133 } 3134 break; 3135 case QEMU_OPTION_virtfs: { 3136 QemuOpts *fsdev; 3137 QemuOpts *device; 3138 const char *writeout, *sock_fd, *socket, *path, *security_model, 3139 *multidevs; 3140 3141 olist = qemu_find_opts("virtfs"); 3142 if (!olist) { 3143 error_report("virtfs support is disabled"); 3144 exit(1); 3145 } 3146 opts = qemu_opts_parse_noisily(olist, optarg, true); 3147 if (!opts) { 3148 exit(1); 3149 } 3150 3151 if (qemu_opt_get(opts, "fsdriver") == NULL || 3152 qemu_opt_get(opts, "mount_tag") == NULL) { 3153 error_report("Usage: -virtfs fsdriver,mount_tag=tag"); 3154 exit(1); 3155 } 3156 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), 3157 qemu_opts_id(opts) ?: 3158 qemu_opt_get(opts, "mount_tag"), 3159 1, NULL); 3160 if (!fsdev) { 3161 error_report("duplicate or invalid fsdev id: %s", 3162 qemu_opt_get(opts, "mount_tag")); 3163 exit(1); 3164 } 3165 3166 writeout = qemu_opt_get(opts, "writeout"); 3167 if (writeout) { 3168 #ifdef CONFIG_SYNC_FILE_RANGE 3169 qemu_opt_set(fsdev, "writeout", writeout, &error_abort); 3170 #else 3171 error_report("writeout=immediate not supported " 3172 "on this platform"); 3173 exit(1); 3174 #endif 3175 } 3176 qemu_opt_set(fsdev, "fsdriver", 3177 qemu_opt_get(opts, "fsdriver"), &error_abort); 3178 path = qemu_opt_get(opts, "path"); 3179 if (path) { 3180 qemu_opt_set(fsdev, "path", path, &error_abort); 3181 } 3182 security_model = qemu_opt_get(opts, "security_model"); 3183 if (security_model) { 3184 qemu_opt_set(fsdev, "security_model", security_model, 3185 &error_abort); 3186 } 3187 socket = qemu_opt_get(opts, "socket"); 3188 if (socket) { 3189 qemu_opt_set(fsdev, "socket", socket, &error_abort); 3190 } 3191 sock_fd = qemu_opt_get(opts, "sock_fd"); 3192 if (sock_fd) { 3193 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort); 3194 } 3195 3196 qemu_opt_set_bool(fsdev, "readonly", 3197 qemu_opt_get_bool(opts, "readonly", 0), 3198 &error_abort); 3199 multidevs = qemu_opt_get(opts, "multidevs"); 3200 if (multidevs) { 3201 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort); 3202 } 3203 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0, 3204 &error_abort); 3205 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort); 3206 qemu_opt_set(device, "fsdev", 3207 qemu_opts_id(fsdev), &error_abort); 3208 qemu_opt_set(device, "mount_tag", 3209 qemu_opt_get(opts, "mount_tag"), &error_abort); 3210 break; 3211 } 3212 case QEMU_OPTION_serial: 3213 add_device_config(DEV_SERIAL, optarg); 3214 default_serial = 0; 3215 if (strncmp(optarg, "mon:", 4) == 0) { 3216 default_monitor = 0; 3217 } 3218 break; 3219 case QEMU_OPTION_action: 3220 olist = qemu_find_opts("action"); 3221 if (!qemu_opts_parse_noisily(olist, optarg, false)) { 3222 exit(1); 3223 } 3224 break; 3225 case QEMU_OPTION_watchdog_action: { 3226 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort); 3227 qemu_opt_set(opts, "watchdog", optarg, &error_abort); 3228 break; 3229 } 3230 case QEMU_OPTION_parallel: 3231 add_device_config(DEV_PARALLEL, optarg); 3232 default_parallel = 0; 3233 if (strncmp(optarg, "mon:", 4) == 0) { 3234 default_monitor = 0; 3235 } 3236 break; 3237 case QEMU_OPTION_debugcon: 3238 add_device_config(DEV_DEBUGCON, optarg); 3239 break; 3240 case QEMU_OPTION_loadvm: 3241 loadvm = optarg; 3242 break; 3243 case QEMU_OPTION_full_screen: 3244 dpy.has_full_screen = true; 3245 dpy.full_screen = true; 3246 break; 3247 case QEMU_OPTION_pidfile: 3248 pid_file = optarg; 3249 break; 3250 case QEMU_OPTION_win2k_hack: 3251 win2k_install_hack = 1; 3252 break; 3253 case QEMU_OPTION_acpitable: 3254 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"), 3255 optarg, true); 3256 if (!opts) { 3257 exit(1); 3258 } 3259 acpi_table_add(opts, &error_fatal); 3260 break; 3261 case QEMU_OPTION_smbios: 3262 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"), 3263 optarg, false); 3264 if (!opts) { 3265 exit(1); 3266 } 3267 smbios_entry_add(opts, &error_fatal); 3268 break; 3269 case QEMU_OPTION_fwcfg: 3270 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"), 3271 optarg, true); 3272 if (opts == NULL) { 3273 exit(1); 3274 } 3275 break; 3276 case QEMU_OPTION_preconfig: 3277 preconfig_requested = true; 3278 break; 3279 case QEMU_OPTION_enable_kvm: 3280 qdict_put_str(machine_opts_dict, "accel", "kvm"); 3281 break; 3282 case QEMU_OPTION_M: 3283 case QEMU_OPTION_machine: 3284 { 3285 bool help; 3286 3287 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal); 3288 if (help) { 3289 machine_help_func(machine_opts_dict); 3290 exit(EXIT_SUCCESS); 3291 } 3292 break; 3293 } 3294 case QEMU_OPTION_accel: 3295 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"), 3296 optarg, true); 3297 optarg = qemu_opt_get(accel_opts, "accel"); 3298 if (!optarg || is_help_option(optarg)) { 3299 printf("Accelerators supported in QEMU binary:\n"); 3300 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL, 3301 false); 3302 for (el = accel_list; el; el = el->next) { 3303 gchar *typename = g_strdup(object_class_get_name( 3304 OBJECT_CLASS(el->data))); 3305 /* omit qtest which is used for tests only */ 3306 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) && 3307 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) { 3308 gchar **optname = g_strsplit(typename, 3309 ACCEL_CLASS_SUFFIX, 0); 3310 printf("%s\n", optname[0]); 3311 g_strfreev(optname); 3312 } 3313 g_free(typename); 3314 } 3315 g_slist_free(accel_list); 3316 exit(0); 3317 } 3318 break; 3319 case QEMU_OPTION_usb: 3320 qdict_put_str(machine_opts_dict, "usb", "on"); 3321 break; 3322 case QEMU_OPTION_usbdevice: 3323 qdict_put_str(machine_opts_dict, "usb", "on"); 3324 add_device_config(DEV_USB, optarg); 3325 break; 3326 case QEMU_OPTION_device: 3327 if (optarg[0] == '{') { 3328 QObject *obj = qobject_from_json(optarg, &error_fatal); 3329 DeviceOption *opt = g_new0(DeviceOption, 1); 3330 opt->opts = qobject_to(QDict, obj); 3331 loc_save(&opt->loc); 3332 assert(opt->opts != NULL); 3333 QTAILQ_INSERT_TAIL(&device_opts, opt, next); 3334 } else { 3335 if (!qemu_opts_parse_noisily(qemu_find_opts("device"), 3336 optarg, true)) { 3337 exit(1); 3338 } 3339 } 3340 break; 3341 case QEMU_OPTION_smp: 3342 machine_parse_property_opt(qemu_find_opts("smp-opts"), 3343 "smp", optarg); 3344 break; 3345 #ifdef CONFIG_VNC 3346 case QEMU_OPTION_vnc: 3347 vnc_parse(optarg); 3348 display_remote++; 3349 break; 3350 #endif 3351 case QEMU_OPTION_no_acpi: 3352 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead"); 3353 qdict_put_str(machine_opts_dict, "acpi", "off"); 3354 break; 3355 case QEMU_OPTION_no_hpet: 3356 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead"); 3357 qdict_put_str(machine_opts_dict, "hpet", "off"); 3358 break; 3359 case QEMU_OPTION_no_reboot: 3360 olist = qemu_find_opts("action"); 3361 qemu_opts_parse_noisily(olist, "reboot=shutdown", false); 3362 break; 3363 case QEMU_OPTION_no_shutdown: 3364 olist = qemu_find_opts("action"); 3365 qemu_opts_parse_noisily(olist, "shutdown=pause", false); 3366 break; 3367 case QEMU_OPTION_uuid: 3368 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) { 3369 error_report("failed to parse UUID string: wrong format"); 3370 exit(1); 3371 } 3372 qemu_uuid_set = true; 3373 break; 3374 case QEMU_OPTION_option_rom: 3375 if (nb_option_roms >= MAX_OPTION_ROMS) { 3376 error_report("too many option ROMs"); 3377 exit(1); 3378 } 3379 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"), 3380 optarg, true); 3381 if (!opts) { 3382 exit(1); 3383 } 3384 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile"); 3385 option_rom[nb_option_roms].bootindex = 3386 qemu_opt_get_number(opts, "bootindex", -1); 3387 if (!option_rom[nb_option_roms].name) { 3388 error_report("Option ROM file is not specified"); 3389 exit(1); 3390 } 3391 nb_option_roms++; 3392 break; 3393 case QEMU_OPTION_semihosting: 3394 qemu_semihosting_enable(); 3395 break; 3396 case QEMU_OPTION_semihosting_config: 3397 if (qemu_semihosting_config_options(optarg) != 0) { 3398 exit(1); 3399 } 3400 break; 3401 case QEMU_OPTION_name: 3402 opts = qemu_opts_parse_noisily(qemu_find_opts("name"), 3403 optarg, true); 3404 if (!opts) { 3405 exit(1); 3406 } 3407 /* Capture guest name if -msg guest-name is used later */ 3408 error_guest_name = qemu_opt_get(opts, "guest"); 3409 break; 3410 case QEMU_OPTION_prom_env: 3411 if (nb_prom_envs >= MAX_PROM_ENVS) { 3412 error_report("too many prom variables"); 3413 exit(1); 3414 } 3415 prom_envs[nb_prom_envs] = optarg; 3416 nb_prom_envs++; 3417 break; 3418 case QEMU_OPTION_old_param: 3419 old_param = 1; 3420 break; 3421 case QEMU_OPTION_rtc: 3422 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg, 3423 false); 3424 if (!opts) { 3425 exit(1); 3426 } 3427 break; 3428 case QEMU_OPTION_icount: 3429 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"), 3430 optarg, true); 3431 if (!icount_opts) { 3432 exit(1); 3433 } 3434 break; 3435 case QEMU_OPTION_incoming: 3436 if (!incoming) { 3437 runstate_set(RUN_STATE_INMIGRATE); 3438 } 3439 incoming = optarg; 3440 break; 3441 case QEMU_OPTION_only_migratable: 3442 only_migratable = 1; 3443 break; 3444 case QEMU_OPTION_nodefaults: 3445 has_defaults = 0; 3446 break; 3447 case QEMU_OPTION_xen_domid: 3448 if (!(accel_find("xen")) && !(accel_find("kvm"))) { 3449 error_report("Option not supported for this target"); 3450 exit(1); 3451 } 3452 xen_domid = atoi(optarg); 3453 break; 3454 case QEMU_OPTION_xen_attach: 3455 if (!(accel_find("xen"))) { 3456 error_report("Option not supported for this target"); 3457 exit(1); 3458 } 3459 xen_mode = XEN_ATTACH; 3460 break; 3461 case QEMU_OPTION_xen_domid_restrict: 3462 if (!(accel_find("xen"))) { 3463 error_report("Option not supported for this target"); 3464 exit(1); 3465 } 3466 xen_domid_restrict = true; 3467 break; 3468 case QEMU_OPTION_trace: 3469 trace_opt_parse(optarg); 3470 break; 3471 case QEMU_OPTION_plugin: 3472 qemu_plugin_opt_parse(optarg, &plugin_list); 3473 break; 3474 case QEMU_OPTION_readconfig: 3475 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal); 3476 break; 3477 #ifdef CONFIG_SPICE 3478 case QEMU_OPTION_spice: 3479 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false); 3480 if (!opts) { 3481 exit(1); 3482 } 3483 display_remote++; 3484 break; 3485 #endif 3486 case QEMU_OPTION_qtest: 3487 qtest_chrdev = optarg; 3488 break; 3489 case QEMU_OPTION_qtest_log: 3490 qtest_log = optarg; 3491 break; 3492 case QEMU_OPTION_sandbox: 3493 olist = qemu_find_opts("sandbox"); 3494 if (!olist) { 3495 #ifndef CONFIG_SECCOMP 3496 error_report("-sandbox support is not enabled " 3497 "in this QEMU binary"); 3498 #endif 3499 exit(1); 3500 } 3501 3502 opts = qemu_opts_parse_noisily(olist, optarg, true); 3503 if (!opts) { 3504 exit(1); 3505 } 3506 break; 3507 case QEMU_OPTION_add_fd: 3508 #ifndef _WIN32 3509 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"), 3510 optarg, false); 3511 if (!opts) { 3512 exit(1); 3513 } 3514 #else 3515 error_report("File descriptor passing is disabled on this " 3516 "platform"); 3517 exit(1); 3518 #endif 3519 break; 3520 case QEMU_OPTION_object: 3521 object_option_parse(optarg); 3522 break; 3523 case QEMU_OPTION_overcommit: 3524 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"), 3525 optarg, false); 3526 if (!opts) { 3527 exit(1); 3528 } 3529 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false); 3530 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false); 3531 break; 3532 case QEMU_OPTION_compat: 3533 { 3534 CompatPolicy *opts_policy; 3535 Visitor *v; 3536 3537 v = qobject_input_visitor_new_str(optarg, NULL, 3538 &error_fatal); 3539 3540 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal); 3541 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy); 3542 3543 qapi_free_CompatPolicy(opts_policy); 3544 visit_free(v); 3545 break; 3546 } 3547 case QEMU_OPTION_msg: 3548 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg, 3549 false); 3550 if (!opts) { 3551 exit(1); 3552 } 3553 configure_msg(opts); 3554 break; 3555 case QEMU_OPTION_dump_vmstate: 3556 if (vmstate_dump_file) { 3557 error_report("only one '-dump-vmstate' " 3558 "option may be given"); 3559 exit(1); 3560 } 3561 vmstate_dump_file = fopen(optarg, "w"); 3562 if (vmstate_dump_file == NULL) { 3563 error_report("open %s: %s", optarg, strerror(errno)); 3564 exit(1); 3565 } 3566 break; 3567 case QEMU_OPTION_enable_sync_profile: 3568 qsp_enable(); 3569 break; 3570 case QEMU_OPTION_nouserconfig: 3571 /* Nothing to be parsed here. Especially, do not error out below. */ 3572 break; 3573 #if defined(CONFIG_POSIX) 3574 case QEMU_OPTION_runas: 3575 if (!os_set_runas(optarg)) { 3576 error_report("User \"%s\" doesn't exist" 3577 " (and is not <uid>:<gid>)", 3578 optarg); 3579 exit(1); 3580 } 3581 break; 3582 case QEMU_OPTION_chroot: 3583 warn_report("option is deprecated," 3584 " use '-run-with chroot=...' instead"); 3585 os_set_chroot(optarg); 3586 break; 3587 case QEMU_OPTION_daemonize: 3588 os_set_daemonize(true); 3589 break; 3590 #if defined(CONFIG_LINUX) 3591 /* deprecated */ 3592 case QEMU_OPTION_asyncteardown: 3593 init_async_teardown(); 3594 break; 3595 #endif 3596 case QEMU_OPTION_run_with: { 3597 const char *str; 3598 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"), 3599 optarg, false); 3600 if (!opts) { 3601 exit(1); 3602 } 3603 #if defined(CONFIG_LINUX) 3604 if (qemu_opt_get_bool(opts, "async-teardown", false)) { 3605 init_async_teardown(); 3606 } 3607 #endif 3608 str = qemu_opt_get(opts, "chroot"); 3609 if (str) { 3610 os_set_chroot(str); 3611 } 3612 break; 3613 } 3614 #endif /* CONFIG_POSIX */ 3615 3616 default: 3617 error_report("Option not supported in this build"); 3618 exit(1); 3619 } 3620 } 3621 } 3622 /* 3623 * Clear error location left behind by the loop. 3624 * Best done right after the loop. Do not insert code here! 3625 */ 3626 loc_set_none(); 3627 3628 qemu_validate_options(machine_opts_dict); 3629 qemu_process_sugar_options(); 3630 3631 /* 3632 * These options affect everything else and should be processed 3633 * before daemonizing. 3634 */ 3635 qemu_process_early_options(); 3636 3637 qemu_process_help_options(); 3638 qemu_maybe_daemonize(pid_file); 3639 3640 /* 3641 * The trace backend must be initialized after daemonizing. 3642 * trace_init_backends() will call st_init(), which will create the 3643 * trace thread in the parent, and also register st_flush_trace_buffer() 3644 * in atexit(). This function will force the parent to wait for the 3645 * writeout thread to finish, which will not occur, and the parent 3646 * process will be left in the host. 3647 */ 3648 if (!trace_init_backends()) { 3649 exit(1); 3650 } 3651 trace_init_file(); 3652 3653 qemu_init_main_loop(&error_fatal); 3654 cpu_timers_init(); 3655 3656 user_register_global_props(); 3657 replay_configure(icount_opts); 3658 3659 configure_rtc(qemu_find_opts_singleton("rtc")); 3660 3661 /* Transfer QemuOpts options into machine options */ 3662 parse_memory_options(); 3663 3664 qemu_create_machine(machine_opts_dict); 3665 3666 suspend_mux_open(); 3667 3668 qemu_disable_default_devices(); 3669 qemu_create_default_devices(); 3670 qemu_create_early_backends(); 3671 3672 qemu_apply_legacy_machine_options(machine_opts_dict); 3673 qemu_apply_machine_options(machine_opts_dict); 3674 qobject_unref(machine_opts_dict); 3675 phase_advance(PHASE_MACHINE_CREATED); 3676 3677 /* 3678 * Note: uses machine properties such as kernel-irqchip, must run 3679 * after qemu_apply_machine_options. 3680 */ 3681 configure_accelerators(argv[0]); 3682 phase_advance(PHASE_ACCEL_CREATED); 3683 3684 /* 3685 * Beware, QOM objects created before this point miss global and 3686 * compat properties. 3687 * 3688 * Global properties get set up by qdev_prop_register_global(), 3689 * called from user_register_global_props(), and certain option 3690 * desugaring. Also in CPU feature desugaring (buried in 3691 * parse_cpu_option()), which happens below this point, but may 3692 * only target the CPU type, which can only be created after 3693 * parse_cpu_option() returned the type. 3694 * 3695 * Machine compat properties: object_set_machine_compat_props(). 3696 * Accelerator compat props: object_set_accelerator_compat_props(), 3697 * called from do_configure_accelerator(). 3698 */ 3699 3700 machine_class = MACHINE_GET_CLASS(current_machine); 3701 if (!qtest_enabled() && machine_class->deprecation_reason) { 3702 warn_report("Machine type '%s' is deprecated: %s", 3703 machine_class->name, machine_class->deprecation_reason); 3704 } 3705 3706 /* 3707 * Create backends before creating migration objects, so that it can 3708 * check against compatibilities on the backend memories (e.g. postcopy 3709 * over memory-backend-file objects). 3710 */ 3711 qemu_create_late_backends(); 3712 3713 /* 3714 * Note: creates a QOM object, must run only after global and 3715 * compat properties have been set up. 3716 */ 3717 migration_object_init(); 3718 3719 /* parse features once if machine provides default cpu_type */ 3720 current_machine->cpu_type = machine_class->default_cpu_type; 3721 if (cpu_option) { 3722 current_machine->cpu_type = parse_cpu_option(cpu_option); 3723 } 3724 /* NB: for machine none cpu_type could STILL be NULL here! */ 3725 3726 qemu_resolve_machine_memdev(); 3727 parse_numa_opts(current_machine); 3728 3729 if (vmstate_dump_file) { 3730 /* dump and exit */ 3731 module_load_qom_all(); 3732 dump_vmstate_json_to_file(vmstate_dump_file); 3733 exit(0); 3734 } 3735 3736 if (!preconfig_requested) { 3737 qmp_x_exit_preconfig(&error_fatal); 3738 } 3739 qemu_init_displays(); 3740 accel_setup_post(current_machine); 3741 os_setup_post(); 3742 resume_mux_open(); 3743 } 3744