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