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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
[qemu/armbru.git] / system / vl.c
bloba3eede5fa5b86d8a0a6b8331331a414b0d4cead5
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 = "modules",
746 .type = QEMU_OPT_NUMBER,
747 }, {
748 .name = "cores",
749 .type = QEMU_OPT_NUMBER,
750 }, {
751 .name = "threads",
752 .type = QEMU_OPT_NUMBER,
753 }, {
754 .name = "maxcpus",
755 .type = QEMU_OPT_NUMBER,
756 },
757 { /*End of list */ }
758 },
759 };
760
761 #if defined(CONFIG_POSIX)
762 static QemuOptsList qemu_run_with_opts = {
763 .name = "run-with",
764 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
765 .desc = {
766 #if defined(CONFIG_LINUX)
767 {
768 .name = "async-teardown",
769 .type = QEMU_OPT_BOOL,
770 },
771 #endif
772 {
773 .name = "chroot",
774 .type = QEMU_OPT_STRING,
775 },
776 {
777 .name = "user",
778 .type = QEMU_OPT_STRING,
779 },
780 { /* end of list */ }
781 },
782 };
783
784 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
785
786 #else
787
788 #define qemu_add_run_with_opts()
789
790 #endif /* CONFIG_POSIX */
791
792 static void realtime_init(void)
793 {
794 if (enable_mlock) {
795 if (os_mlock() < 0) {
796 error_report("locking memory failed");
797 exit(1);
798 }
799 }
800 }
801
802
803 static void configure_msg(QemuOpts *opts)
804 {
805 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
806 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
807 }
808
809
810 /***********************************************************/
811 /* USB devices */
812
813 static int usb_device_add(const char *devname)
814 {
815 USBDevice *dev = NULL;
816
817 if (!machine_usb(current_machine)) {
818 return -1;
819 }
820
821 dev = usbdevice_create(devname);
822 if (!dev)
823 return -1;
824
825 return 0;
826 }
827
828 static int usb_parse(const char *cmdline)
829 {
830 int r;
831 r = usb_device_add(cmdline);
832 if (r < 0) {
833 error_report("could not add USB device '%s'", cmdline);
834 }
835 return r;
836 }
837
838 /***********************************************************/
839 /* machine registration */
840
841 static MachineClass *find_machine(const char *name, GSList *machines)
842 {
843 GSList *el;
844
845 for (el = machines; el; el = el->next) {
846 MachineClass *mc = el->data;
847
848 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
849 return mc;
850 }
851 }
852
853 return NULL;
854 }
855
856 static MachineClass *find_default_machine(GSList *machines)
857 {
858 GSList *el;
859 MachineClass *default_machineclass = NULL;
860
861 for (el = machines; el; el = el->next) {
862 MachineClass *mc = el->data;
863
864 if (mc->is_default) {
865 assert(default_machineclass == NULL && "Multiple default machines");
866 default_machineclass = mc;
867 }
868 }
869
870 return default_machineclass;
871 }
872
873 static void version(void)
874 {
875 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
876 QEMU_COPYRIGHT "\n");
877 }
878
879 static void help(int exitcode)
880 {
881 version();
882 printf("usage: %s [options] [disk_image]\n\n"
883 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
884 g_get_prgname());
885
886 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
887 if ((arch_mask) & arch_type) \
888 fputs(opt_help, stdout);
889
890 #define ARCHHEADING(text, arch_mask) \
891 if ((arch_mask) & arch_type) \
892 puts(stringify(text));
893
894 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
895
896 #include "qemu-options.def"
897
898 printf("\nDuring emulation, the following keys are useful:\n"
899 "ctrl-alt-f toggle full screen\n"
900 "ctrl-alt-n switch to virtual console 'n'\n"
901 "ctrl-alt-g toggle mouse and keyboard grab\n"
902 "\n"
903 "When using -nographic, press 'ctrl-a h' to get some help.\n"
904 "\n"
905 QEMU_HELP_BOTTOM "\n");
906
907 exit(exitcode);
908 }
909
910 enum {
911
912 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
913 opt_enum,
914 #define DEFHEADING(text)
915 #define ARCHHEADING(text, arch_mask)
916
917 #include "qemu-options.def"
918 };
919
920 #define HAS_ARG 0x0001
921
922 typedef struct QEMUOption {
923 const char *name;
924 int flags;
925 int index;
926 uint32_t arch_mask;
927 } QEMUOption;
928
929 static const QEMUOption qemu_options[] = {
930 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
931
932 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
933 { option, opt_arg, opt_enum, arch_mask },
934 #define DEFHEADING(text)
935 #define ARCHHEADING(text, arch_mask)
936
937 #include "qemu-options.def"
938 { /* end of list */ }
939 };
940
941 typedef struct VGAInterfaceInfo {
942 const char *opt_name; /* option name */
943 const char *name; /* human-readable name */
944 /* Class names indicating that support is available.
945 * If no class is specified, the interface is always available */
946 const char *class_names[2];
947 } VGAInterfaceInfo;
948
949 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
950 [VGA_NONE] = {
951 .opt_name = "none",
952 .name = "no graphic card",
953 },
954 [VGA_STD] = {
955 .opt_name = "std",
956 .name = "standard VGA",
957 .class_names = { "VGA", "isa-vga" },
958 },
959 [VGA_CIRRUS] = {
960 .opt_name = "cirrus",
961 .name = "Cirrus VGA",
962 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
963 },
964 [VGA_VMWARE] = {
965 .opt_name = "vmware",
966 .name = "VMWare SVGA",
967 .class_names = { "vmware-svga" },
968 },
969 [VGA_VIRTIO] = {
970 .opt_name = "virtio",
971 .name = "Virtio VGA",
972 .class_names = { "virtio-vga" },
973 },
974 [VGA_QXL] = {
975 .opt_name = "qxl",
976 .name = "QXL VGA",
977 .class_names = { "qxl-vga" },
978 },
979 [VGA_TCX] = {
980 .opt_name = "tcx",
981 .name = "TCX framebuffer",
982 .class_names = { "sun-tcx" },
983 },
984 [VGA_CG3] = {
985 .opt_name = "cg3",
986 .name = "CG3 framebuffer",
987 .class_names = { "cgthree" },
988 },
989 #ifdef CONFIG_XEN_BACKEND
990 [VGA_XENFB] = {
991 .opt_name = "xenfb",
992 .name = "Xen paravirtualized framebuffer",
993 },
994 #endif
995 };
996
997 static bool vga_interface_available(VGAInterfaceType t)
998 {
999 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1000
1001 assert(t < VGA_TYPE_MAX);
1002 return !ti->class_names[0] ||
1003 module_object_class_by_name(ti->class_names[0]) ||
1004 module_object_class_by_name(ti->class_names[1]);
1005 }
1006
1007 static const char *
1008 get_default_vga_model(const MachineClass *machine_class)
1009 {
1010 if (machine_class->default_display) {
1011 for (int t = 0; t < VGA_TYPE_MAX; t++) {
1012 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1013
1014 if (ti->opt_name && vga_interface_available(t) &&
1015 g_str_equal(ti->opt_name, machine_class->default_display)) {
1016 return machine_class->default_display;
1017 }
1018 }
1019
1020 warn_report_once("Default display '%s' is not available in this binary",
1021 machine_class->default_display);
1022 return NULL;
1023 } else if (vga_interface_available(VGA_CIRRUS)) {
1024 return "cirrus";
1025 } else if (vga_interface_available(VGA_STD)) {
1026 return "std";
1027 }
1028
1029 return NULL;
1030 }
1031
1032 static void select_vgahw(const MachineClass *machine_class, const char *p)
1033 {
1034 const char *opts;
1035 int t;
1036
1037 if (g_str_equal(p, "help")) {
1038 const char *def = get_default_vga_model(machine_class);
1039
1040 for (t = 0; t < VGA_TYPE_MAX; t++) {
1041 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1042
1043 if (vga_interface_available(t) && ti->opt_name) {
1044 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1045 (def && g_str_equal(ti->opt_name, def)) ?
1046 " (default)" : "");
1047 }
1048 }
1049 exit(0);
1050 }
1051
1052 assert(vga_interface_type == VGA_NONE);
1053 for (t = 0; t < VGA_TYPE_MAX; t++) {
1054 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1055 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1056 if (!vga_interface_available(t)) {
1057 error_report("%s not available", ti->name);
1058 exit(1);
1059 }
1060 vga_interface_type = t;
1061 break;
1062 }
1063 }
1064 if (t == VGA_TYPE_MAX) {
1065 invalid_vga:
1066 error_report("unknown vga type: %s", p);
1067 exit(1);
1068 }
1069 while (*opts) {
1070 const char *nextopt;
1071
1072 if (strstart(opts, ",retrace=", &nextopt)) {
1073 opts = nextopt;
1074 if (strstart(opts, "dumb", &nextopt))
1075 vga_retrace_method = VGA_RETRACE_DUMB;
1076 else if (strstart(opts, "precise", &nextopt))
1077 vga_retrace_method = VGA_RETRACE_PRECISE;
1078 else goto invalid_vga;
1079 } else goto invalid_vga;
1080 opts = nextopt;
1081 }
1082 }
1083
1084 static void parse_display_qapi(const char *str)
1085 {
1086 DisplayOptions *opts;
1087 Visitor *v;
1088
1089 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1090
1091 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1092 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1093
1094 qapi_free_DisplayOptions(opts);
1095 visit_free(v);
1096 }
1097
1098 DisplayOptions *qmp_query_display_options(Error **errp)
1099 {
1100 return QAPI_CLONE(DisplayOptions, &dpy);
1101 }
1102
1103 static void parse_display(const char *p)
1104 {
1105 if (is_help_option(p)) {
1106 qemu_display_help();
1107 exit(0);
1108 }
1109
1110 #ifdef CONFIG_VNC
1111 const char *opts;
1112
1113 if (strstart(p, "vnc", &opts)) {
1114 /*
1115 * vnc isn't a (local) DisplayType but a protocol for remote
1116 * display access.
1117 */
1118 if (*opts == '=') {
1119 vnc_parse(opts + 1);
1120 display_remote++;
1121 } else {
1122 error_report("VNC requires a display argument vnc=<display>");
1123 exit(1);
1124 }
1125 return;
1126 }
1127 #endif
1128
1129 parse_display_qapi(p);
1130 }
1131
1132 static inline bool nonempty_str(const char *str)
1133 {
1134 return str && *str;
1135 }
1136
1137 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1138 {
1139 gchar *buf;
1140 size_t size;
1141 const char *name, *file, *str, *gen_id;
1142 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1143
1144 if (fw_cfg == NULL) {
1145 error_setg(errp, "fw_cfg device not available");
1146 return -1;
1147 }
1148 name = qemu_opt_get(opts, "name");
1149 file = qemu_opt_get(opts, "file");
1150 str = qemu_opt_get(opts, "string");
1151 gen_id = qemu_opt_get(opts, "gen_id");
1152
1153 /* we need the name, and exactly one of: file, content string, gen_id */
1154 if (!nonempty_str(name) ||
1155 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1156 error_setg(errp, "name, plus exactly one of file,"
1157 " string and gen_id, are needed");
1158 return -1;
1159 }
1160 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1161 error_setg(errp, "name too long (max. %d char)",
1162 FW_CFG_MAX_FILE_PATH - 1);
1163 return -1;
1164 }
1165 if (nonempty_str(gen_id)) {
1166 /*
1167 * In this particular case where the content is populated
1168 * internally, the "etc/" namespace protection is relaxed,
1169 * so do not emit a warning.
1170 */
1171 } else if (strncmp(name, "opt/", 4) != 0) {
1172 warn_report("externally provided fw_cfg item names "
1173 "should be prefixed with \"opt/\"");
1174 }
1175 if (nonempty_str(str)) {
1176 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1177 buf = g_memdup(str, size);
1178 } else if (nonempty_str(gen_id)) {
1179 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1180 return -1;
1181 }
1182 return 0;
1183 } else {
1184 GError *err = NULL;
1185 if (!g_file_get_contents(file, &buf, &size, &err)) {
1186 error_setg(errp, "can't load %s: %s", file, err->message);
1187 g_error_free(err);
1188 return -1;
1189 }
1190 }
1191 /* For legacy, keep user files in a specific global order. */
1192 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1193 fw_cfg_add_file(fw_cfg, name, buf, size);
1194 fw_cfg_reset_order_override(fw_cfg);
1195 return 0;
1196 }
1197
1198 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1199 {
1200 return qdev_device_help(opts);
1201 }
1202
1203 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1204 {
1205 DeviceState *dev;
1206
1207 dev = qdev_device_add(opts, errp);
1208 if (!dev && *errp) {
1209 error_report_err(*errp);
1210 return -1;
1211 } else if (dev) {
1212 object_unref(OBJECT(dev));
1213 }
1214 return 0;
1215 }
1216
1217 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1218 {
1219 Error *local_err = NULL;
1220
1221 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1222 if (local_err) {
1223 error_propagate(errp, local_err);
1224 return -1;
1225 }
1226 exit(0);
1227 }
1228 return 0;
1229 }
1230
1231 #ifdef CONFIG_VIRTFS
1232 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1233 {
1234 return qemu_fsdev_add(opts, errp);
1235 }
1236 #endif
1237
1238 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1239 {
1240 return monitor_init_opts(opts, errp);
1241 }
1242
1243 static void monitor_parse(const char *str, const char *mode, bool pretty)
1244 {
1245 static int monitor_device_index = 0;
1246 QemuOpts *opts;
1247 const char *p;
1248 char label[32];
1249
1250 if (strstart(str, "chardev:", &p)) {
1251 snprintf(label, sizeof(label), "%s", p);
1252 } else {
1253 snprintf(label, sizeof(label), "compat_monitor%d",
1254 monitor_device_index);
1255 opts = qemu_chr_parse_compat(label, str, true);
1256 if (!opts) {
1257 error_report("parse error: %s", str);
1258 exit(1);
1259 }
1260 }
1261
1262 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1263 qemu_opt_set(opts, "mode", mode, &error_abort);
1264 qemu_opt_set(opts, "chardev", label, &error_abort);
1265 if (!strcmp(mode, "control")) {
1266 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1267 } else {
1268 assert(pretty == false);
1269 }
1270 monitor_device_index++;
1271 }
1272
1273 struct device_config {
1274 enum {
1275 DEV_USB, /* -usbdevice */
1276 DEV_SERIAL, /* -serial */
1277 DEV_PARALLEL, /* -parallel */
1278 DEV_DEBUGCON, /* -debugcon */
1279 DEV_GDB, /* -gdb, -s */
1280 DEV_SCLP, /* s390 sclp */
1281 } type;
1282 const char *cmdline;
1283 Location loc;
1284 QTAILQ_ENTRY(device_config) next;
1285 };
1286
1287 static QTAILQ_HEAD(, device_config) device_configs =
1288 QTAILQ_HEAD_INITIALIZER(device_configs);
1289
1290 static void add_device_config(int type, const char *cmdline)
1291 {
1292 struct device_config *conf;
1293
1294 conf = g_malloc0(sizeof(*conf));
1295 conf->type = type;
1296 conf->cmdline = cmdline;
1297 loc_save(&conf->loc);
1298 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1299 }
1300
1301 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1302 {
1303 struct device_config *conf;
1304 int rc;
1305
1306 QTAILQ_FOREACH(conf, &device_configs, next) {
1307 if (conf->type != type)
1308 continue;
1309 loc_push_restore(&conf->loc);
1310 rc = func(conf->cmdline);
1311 loc_pop(&conf->loc);
1312 if (rc) {
1313 return rc;
1314 }
1315 }
1316 return 0;
1317 }
1318
1319 static void qemu_disable_default_devices(void)
1320 {
1321 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1322
1323 default_driver_check_json();
1324 qemu_opts_foreach(qemu_find_opts("device"),
1325 default_driver_check, NULL, NULL);
1326 qemu_opts_foreach(qemu_find_opts("global"),
1327 default_driver_check, NULL, NULL);
1328
1329 if (!vga_model && !default_vga) {
1330 vga_interface_type = VGA_DEVICE;
1331 vga_interface_created = true;
1332 }
1333 if (!has_defaults || machine_class->no_serial) {
1334 default_serial = 0;
1335 }
1336 if (!has_defaults || machine_class->no_parallel) {
1337 default_parallel = 0;
1338 }
1339 if (!has_defaults || machine_class->no_floppy) {
1340 default_floppy = 0;
1341 }
1342 if (!has_defaults || machine_class->no_cdrom) {
1343 default_cdrom = 0;
1344 }
1345 if (!has_defaults || machine_class->no_sdcard) {
1346 default_sdcard = 0;
1347 }
1348 if (!has_defaults) {
1349 default_audio = 0;
1350 default_monitor = 0;
1351 default_net = 0;
1352 default_vga = 0;
1353 } else {
1354 if (default_net && machine_class->default_nic &&
1355 !module_object_class_by_name(machine_class->default_nic)) {
1356 warn_report("Default NIC '%s' is not available in this binary",
1357 machine_class->default_nic);
1358 default_net = 0;
1359 }
1360 }
1361 }
1362
1363 static void qemu_setup_display(void)
1364 {
1365 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1366 if (!qemu_display_find_default(&dpy)) {
1367 dpy.type = DISPLAY_TYPE_NONE;
1368 #if defined(CONFIG_VNC)
1369 vnc_parse("localhost:0,to=99,id=default");
1370 display_remote++;
1371 #endif
1372 }
1373 }
1374 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1375 dpy.type = DISPLAY_TYPE_NONE;
1376 }
1377
1378 qemu_display_early_init(&dpy);
1379 }
1380
1381 static void qemu_create_default_devices(void)
1382 {
1383 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1384 const char *vc = qemu_display_get_vc(&dpy);
1385
1386 if (is_daemonized()) {
1387 /* According to documentation and historically, -nographic redirects
1388 * serial port, parallel port and monitor to stdio, which does not work
1389 * with -daemonize. We can redirect these to null instead, but since
1390 * -nographic is legacy, let's just error out.
1391 * We disallow -nographic only if all other ports are not redirected
1392 * explicitly, to not break existing legacy setups which uses
1393 * -nographic _and_ redirects all ports explicitly - this is valid
1394 * usage, -nographic is just a no-op in this case.
1395 */
1396 if (nographic
1397 && (default_parallel || default_serial || default_monitor)) {
1398 error_report("-nographic cannot be used with -daemonize");
1399 exit(1);
1400 }
1401 }
1402
1403 if (nographic) {
1404 if (default_parallel) {
1405 add_device_config(DEV_PARALLEL, "null");
1406 }
1407 if (default_serial && default_monitor) {
1408 add_device_config(DEV_SERIAL, "mon:stdio");
1409 } else {
1410 if (default_serial) {
1411 add_device_config(DEV_SERIAL, "stdio");
1412 }
1413 if (default_monitor) {
1414 monitor_parse("stdio", "readline", false);
1415 }
1416 }
1417 } else {
1418 if (default_serial) {
1419 add_device_config(DEV_SERIAL, vc ?: "null");
1420 }
1421 if (default_parallel) {
1422 add_device_config(DEV_PARALLEL, vc ?: "null");
1423 }
1424 if (default_monitor && vc) {
1425 monitor_parse(vc, "readline", false);
1426 }
1427 }
1428
1429 if (default_net) {
1430 QemuOptsList *net = qemu_find_opts("net");
1431 qemu_opts_parse(net, "nic", true, &error_abort);
1432 #ifdef CONFIG_SLIRP
1433 qemu_opts_parse(net, "user", true, &error_abort);
1434 #endif
1435 }
1436
1437 /* If no default VGA is requested, the default is "none". */
1438 if (default_vga) {
1439 vga_model = get_default_vga_model(machine_class);
1440 }
1441 if (vga_model) {
1442 select_vgahw(machine_class, vga_model);
1443 }
1444 }
1445
1446 static int serial_parse(const char *devname)
1447 {
1448 int index = num_serial_hds;
1449
1450 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1451
1452 if (strcmp(devname, "none") == 0) {
1453 /* Don't allocate a serial device for this index */
1454 serial_hds[index] = NULL;
1455 } else {
1456 char label[32];
1457 snprintf(label, sizeof(label), "serial%d", index);
1458
1459 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1460 if (!serial_hds[index]) {
1461 error_report("could not connect serial device"
1462 " to character backend '%s'", devname);
1463 return -1;
1464 }
1465 }
1466 num_serial_hds++;
1467 return 0;
1468 }
1469
1470 Chardev *serial_hd(int i)
1471 {
1472 assert(i >= 0);
1473 if (i < num_serial_hds) {
1474 return serial_hds[i];
1475 }
1476 return NULL;
1477 }
1478
1479 static int parallel_parse(const char *devname)
1480 {
1481 static int index = 0;
1482 char label[32];
1483
1484 if (strcmp(devname, "none") == 0)
1485 return 0;
1486 if (index == MAX_PARALLEL_PORTS) {
1487 error_report("too many parallel ports");
1488 exit(1);
1489 }
1490 snprintf(label, sizeof(label), "parallel%d", index);
1491 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1492 if (!parallel_hds[index]) {
1493 error_report("could not connect parallel device"
1494 " to character backend '%s'", devname);
1495 return -1;
1496 }
1497 index++;
1498 return 0;
1499 }
1500
1501 static int debugcon_parse(const char *devname)
1502 {
1503 QemuOpts *opts;
1504
1505 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1506 error_report("invalid character backend '%s'", devname);
1507 exit(1);
1508 }
1509 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1510 if (!opts) {
1511 error_report("already have a debugcon device");
1512 exit(1);
1513 }
1514 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1515 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1516 return 0;
1517 }
1518
1519 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1520 {
1521 const MachineClass *mc1 = a, *mc2 = b;
1522 int res;
1523
1524 if (mc1->family == NULL) {
1525 if (mc2->family == NULL) {
1526 /* Compare standalone machine types against each other; they sort
1527 * in increasing order.
1528 */
1529 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1530 object_class_get_name(OBJECT_CLASS(mc2)));
1531 }
1532
1533 /* Standalone machine types sort after families. */
1534 return 1;
1535 }
1536
1537 if (mc2->family == NULL) {
1538 /* Families sort before standalone machine types. */
1539 return -1;
1540 }
1541
1542 /* Families sort between each other alphabetically increasingly. */
1543 res = strcmp(mc1->family, mc2->family);
1544 if (res != 0) {
1545 return res;
1546 }
1547
1548 /* Within the same family, machine types sort in decreasing order. */
1549 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1550 object_class_get_name(OBJECT_CLASS(mc1)));
1551 }
1552
1553 static void machine_help_func(const QDict *qdict)
1554 {
1555 g_autoptr(GSList) machines = NULL;
1556 GSList *el;
1557 const char *type = qdict_get_try_str(qdict, "type");
1558
1559 machines = object_class_get_list(TYPE_MACHINE, false);
1560 if (type) {
1561 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1562 if (machine_class) {
1563 type_print_class_properties(object_class_get_name(machine_class));
1564 return;
1565 }
1566 }
1567
1568 printf("Supported machines are:\n");
1569 machines = g_slist_sort(machines, machine_class_cmp);
1570 for (el = machines; el; el = el->next) {
1571 MachineClass *mc = el->data;
1572 if (mc->alias) {
1573 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1574 }
1575 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1576 mc->is_default ? " (default)" : "",
1577 mc->deprecation_reason ? " (deprecated)" : "");
1578 }
1579 }
1580
1581 static void
1582 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1583 {
1584 QDict *opts;
1585
1586 opts = qdict_new();
1587 /* Preserve the caller's reference to prop. */
1588 qobject_ref(prop);
1589 qdict_put(opts, propname, prop);
1590 keyval_merge(machine_opts_dict, opts, errp);
1591 qobject_unref(opts);
1592 }
1593
1594 static void
1595 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1596 const char *arg)
1597 {
1598 QDict *prop = NULL;
1599 bool help = false;
1600
1601 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1602 if (help) {
1603 qemu_opts_print_help(opts_list, true);
1604 exit(0);
1605 }
1606 machine_merge_property(propname, prop, &error_fatal);
1607 qobject_unref(prop);
1608 }
1609
1610 static const char *pid_file;
1611 struct UnlinkPidfileNotifier {
1612 Notifier notifier;
1613 char *pid_file_realpath;
1614 };
1615 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1616
1617 static void qemu_unlink_pidfile(Notifier *n, void *data)
1618 {
1619 struct UnlinkPidfileNotifier *upn;
1620
1621 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1622 unlink(upn->pid_file_realpath);
1623 }
1624
1625 static const QEMUOption *lookup_opt(int argc, char **argv,
1626 const char **poptarg, int *poptind)
1627 {
1628 const QEMUOption *popt;
1629 int optind = *poptind;
1630 char *r = argv[optind];
1631 const char *optarg;
1632
1633 loc_set_cmdline(argv, optind, 1);
1634 optind++;
1635 /* Treat --foo the same as -foo. */
1636 if (r[1] == '-')
1637 r++;
1638 popt = qemu_options;
1639 for(;;) {
1640 if (!popt->name) {
1641 error_report("invalid option");
1642 exit(1);
1643 }
1644 if (!strcmp(popt->name, r + 1))
1645 break;
1646 popt++;
1647 }
1648 if (popt->flags & HAS_ARG) {
1649 if (optind >= argc) {
1650 error_report("requires an argument");
1651 exit(1);
1652 }
1653 optarg = argv[optind++];
1654 loc_set_cmdline(argv, optind - 2, 2);
1655 } else {
1656 optarg = NULL;
1657 }
1658
1659 *poptarg = optarg;
1660 *poptind = optind;
1661
1662 return popt;
1663 }
1664
1665 static MachineClass *select_machine(QDict *qdict, Error **errp)
1666 {
1667 const char *machine_type = qdict_get_try_str(qdict, "type");
1668 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1669 MachineClass *machine_class;
1670 Error *local_err = NULL;
1671
1672 if (machine_type) {
1673 machine_class = find_machine(machine_type, machines);
1674 qdict_del(qdict, "type");
1675 if (!machine_class) {
1676 error_setg(&local_err, "unsupported machine type");
1677 }
1678 } else {
1679 machine_class = find_default_machine(machines);
1680 if (!machine_class) {
1681 error_setg(&local_err, "No machine specified, and there is no default");
1682 }
1683 }
1684
1685 g_slist_free(machines);
1686 if (local_err) {
1687 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1688 error_propagate(errp, local_err);
1689 }
1690 return machine_class;
1691 }
1692
1693 static int object_parse_property_opt(Object *obj,
1694 const char *name, const char *value,
1695 const char *skip, Error **errp)
1696 {
1697 if (g_str_equal(name, skip)) {
1698 return 0;
1699 }
1700
1701 if (!object_property_parse(obj, name, value, errp)) {
1702 return -1;
1703 }
1704
1705 return 0;
1706 }
1707
1708 /* *Non*recursively replace underscores with dashes in QDict keys. */
1709 static void keyval_dashify(QDict *qdict, Error **errp)
1710 {
1711 const QDictEntry *ent, *next;
1712 char *p;
1713
1714 for (ent = qdict_first(qdict); ent; ent = next) {
1715 g_autofree char *new_key = NULL;
1716
1717 next = qdict_next(qdict, ent);
1718 if (!strchr(ent->key, '_')) {
1719 continue;
1720 }
1721 new_key = g_strdup(ent->key);
1722 for (p = new_key; *p; p++) {
1723 if (*p == '_') {
1724 *p = '-';
1725 }
1726 }
1727 if (qdict_haskey(qdict, new_key)) {
1728 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1729 return;
1730 }
1731 qobject_ref(ent->value);
1732 qdict_put_obj(qdict, new_key, ent->value);
1733 qdict_del(qdict, ent->key);
1734 }
1735 }
1736
1737 static void qemu_apply_legacy_machine_options(QDict *qdict)
1738 {
1739 const char *value;
1740 QObject *prop;
1741
1742 keyval_dashify(qdict, &error_fatal);
1743
1744 /* Legacy options do not correspond to MachineState properties. */
1745 value = qdict_get_try_str(qdict, "accel");
1746 if (value) {
1747 accelerators = g_strdup(value);
1748 qdict_del(qdict, "accel");
1749 }
1750
1751 value = qdict_get_try_str(qdict, "igd-passthru");
1752 if (value) {
1753 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1754 false);
1755 qdict_del(qdict, "igd-passthru");
1756 }
1757
1758 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1759 if (value) {
1760 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1761 false);
1762 qdict_del(qdict, "kvm-shadow-mem");
1763 }
1764
1765 value = qdict_get_try_str(qdict, "kernel-irqchip");
1766 if (value) {
1767 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1768 false);
1769 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1770 false);
1771 qdict_del(qdict, "kernel-irqchip");
1772 }
1773
1774 value = qdict_get_try_str(qdict, "memory-backend");
1775 if (value) {
1776 if (mem_path) {
1777 error_report("'-mem-path' can't be used together with"
1778 "'-machine memory-backend'");
1779 exit(EXIT_FAILURE);
1780 }
1781
1782 /* Resolved later. */
1783 ram_memdev_id = g_strdup(value);
1784 qdict_del(qdict, "memory-backend");
1785 }
1786
1787 prop = qdict_get(qdict, "memory");
1788 if (prop) {
1789 have_custom_ram_size =
1790 qobject_type(prop) == QTYPE_QDICT &&
1791 qdict_haskey(qobject_to(QDict, prop), "size");
1792 }
1793 }
1794
1795 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1796 {
1797 ObjectOption *opt, *next;
1798
1799 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1800 const char *type = ObjectType_str(opt->opts->qom_type);
1801 if (type_opt_predicate(type)) {
1802 user_creatable_add_qapi(opt->opts, &error_fatal);
1803 qapi_free_ObjectOptions(opt->opts);
1804 QTAILQ_REMOVE(&object_opts, opt, next);
1805 g_free(opt);
1806 }
1807 }
1808 }
1809
1810 static void object_option_add_visitor(Visitor *v)
1811 {
1812 ObjectOption *opt = g_new0(ObjectOption, 1);
1813 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1814 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1815 }
1816
1817 static void object_option_parse(const char *str)
1818 {
1819 QemuOpts *opts;
1820 const char *type;
1821 Visitor *v;
1822
1823 if (str[0] == '{') {
1824 QObject *obj = qobject_from_json(str, &error_fatal);
1825
1826 v = qobject_input_visitor_new(obj);
1827 qobject_unref(obj);
1828 } else {
1829 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1830 str, true);
1831 if (!opts) {
1832 exit(1);
1833 }
1834
1835 type = qemu_opt_get(opts, "qom-type");
1836 if (!type) {
1837 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1838 }
1839 if (user_creatable_print_help(type, opts)) {
1840 exit(0);
1841 }
1842
1843 v = opts_visitor_new(opts);
1844 }
1845
1846 object_option_add_visitor(v);
1847 visit_free(v);
1848 }
1849
1850 /*
1851 * Very early object creation, before the sandbox options have been activated.
1852 */
1853 static bool object_create_pre_sandbox(const char *type)
1854 {
1855 /*
1856 * Objects should in general not get initialized "too early" without
1857 * a reason. If you add one, state the reason in a comment!
1858 */
1859
1860 /*
1861 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1862 * affinity of threads.
1863 */
1864 if (g_str_equal(type, "thread-context")) {
1865 return true;
1866 }
1867
1868 return false;
1869 }
1870
1871 /*
1872 * Initial object creation happens before all other
1873 * QEMU data types are created. The majority of objects
1874 * can be created at this point. The rng-egd object
1875 * cannot be created here, as it depends on the chardev
1876 * already existing.
1877 */
1878 static bool object_create_early(const char *type)
1879 {
1880 /*
1881 * Objects should not be made "delayed" without a reason. If you
1882 * add one, state the reason in a comment!
1883 */
1884
1885 /* Reason: already created. */
1886 if (object_create_pre_sandbox(type)) {
1887 return false;
1888 }
1889
1890 /* Reason: property "chardev" */
1891 if (g_str_equal(type, "rng-egd") ||
1892 g_str_equal(type, "qtest")) {
1893 return false;
1894 }
1895
1896 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1897 /* Reason: cryptodev-vhost-user property "chardev" */
1898 if (g_str_equal(type, "cryptodev-vhost-user")) {
1899 return false;
1900 }
1901 #endif
1902
1903 /* Reason: vhost-user-blk-server property "node-name" */
1904 if (g_str_equal(type, "vhost-user-blk-server")) {
1905 return false;
1906 }
1907 /*
1908 * Reason: filter-* property "netdev" etc.
1909 */
1910 if (g_str_equal(type, "filter-buffer") ||
1911 g_str_equal(type, "filter-dump") ||
1912 g_str_equal(type, "filter-mirror") ||
1913 g_str_equal(type, "filter-redirector") ||
1914 g_str_equal(type, "colo-compare") ||
1915 g_str_equal(type, "filter-rewriter") ||
1916 g_str_equal(type, "filter-replay")) {
1917 return false;
1918 }
1919
1920 /*
1921 * Allocation of large amounts of memory may delay
1922 * chardev initialization for too long, and trigger timeouts
1923 * on software that waits for a monitor socket to be created
1924 */
1925 if (g_str_has_prefix(type, "memory-backend-")) {
1926 return false;
1927 }
1928
1929 return true;
1930 }
1931
1932 static void qemu_apply_machine_options(QDict *qdict)
1933 {
1934 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1935
1936 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1937 /* fall back to the -kernel/-append */
1938 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1939 }
1940
1941 if (current_machine->smp.cpus > 1) {
1942 replay_add_blocker("multiple CPUs");
1943 }
1944 }
1945
1946 static void qemu_create_early_backends(void)
1947 {
1948 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1949 #if defined(CONFIG_SDL)
1950 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1951 #else
1952 const bool use_sdl = false;
1953 #endif
1954 #if defined(CONFIG_GTK)
1955 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1956 #else
1957 const bool use_gtk = false;
1958 #endif
1959
1960 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1961 error_report("window-close is only valid for GTK and SDL, "
1962 "ignoring option");
1963 }
1964
1965 qemu_console_early_init();
1966
1967 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1968 #if defined(CONFIG_OPENGL)
1969 error_report("OpenGL is not supported by the display");
1970 #else
1971 error_report("OpenGL support is disabled");
1972 #endif
1973 exit(1);
1974 }
1975
1976 object_option_foreach_add(object_create_early);
1977
1978 /* spice needs the timers to be initialized by this point */
1979 /* spice must initialize before audio as it changes the default audiodev */
1980 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1981 qemu_spice.init();
1982
1983 qemu_opts_foreach(qemu_find_opts("chardev"),
1984 chardev_init_func, NULL, &error_fatal);
1985
1986 #ifdef CONFIG_VIRTFS
1987 qemu_opts_foreach(qemu_find_opts("fsdev"),
1988 fsdev_init_func, NULL, &error_fatal);
1989 #endif
1990
1991 /*
1992 * Note: we need to create audio and block backends before
1993 * setting machine properties, so they can be referred to.
1994 */
1995 configure_blockdev(&bdo_queue, machine_class, snapshot);
1996 audio_init_audiodevs();
1997 if (default_audio) {
1998 audio_create_default_audiodevs();
1999 }
2000 }
2001
2002
2003 /*
2004 * The remainder of object creation happens after the
2005 * creation of chardev, fsdev, net clients and device data types.
2006 */
2007 static bool object_create_late(const char *type)
2008 {
2009 return !object_create_early(type) && !object_create_pre_sandbox(type);
2010 }
2011
2012 static void qemu_create_late_backends(void)
2013 {
2014 if (qtest_chrdev) {
2015 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
2016 }
2017
2018 net_init_clients();
2019
2020 object_option_foreach_add(object_create_late);
2021
2022 /*
2023 * Wait for any outstanding memory prealloc from created memory
2024 * backends to complete.
2025 */
2026 if (!qemu_finish_async_prealloc_mem(&error_fatal)) {
2027 exit(1);
2028 }
2029
2030 if (tpm_init() < 0) {
2031 exit(1);
2032 }
2033
2034 qemu_opts_foreach(qemu_find_opts("mon"),
2035 mon_init_func, NULL, &error_fatal);
2036
2037 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2038 exit(1);
2039 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2040 exit(1);
2041 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2042 exit(1);
2043
2044 /* now chardevs have been created we may have semihosting to connect */
2045 qemu_semihosting_chardev_init();
2046 }
2047
2048 static void qemu_resolve_machine_memdev(void)
2049 {
2050 if (ram_memdev_id) {
2051 Object *backend;
2052 ram_addr_t backend_size;
2053
2054 backend = object_resolve_path_type(ram_memdev_id,
2055 TYPE_MEMORY_BACKEND, NULL);
2056 if (!backend) {
2057 error_report("Memory backend '%s' not found", ram_memdev_id);
2058 exit(EXIT_FAILURE);
2059 }
2060 if (!have_custom_ram_size) {
2061 backend_size = object_property_get_uint(backend, "size", &error_abort);
2062 current_machine->ram_size = backend_size;
2063 }
2064 object_property_set_link(OBJECT(current_machine),
2065 "memory-backend", backend, &error_fatal);
2066 }
2067 }
2068
2069 static void parse_memory_options(void)
2070 {
2071 QemuOpts *opts = qemu_find_opts_singleton("memory");
2072 QDict *dict, *prop;
2073 const char *mem_str;
2074 Location loc;
2075
2076 loc_push_none(&loc);
2077 qemu_opts_loc_restore(opts);
2078
2079 prop = qdict_new();
2080
2081 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2082 /* Fix up legacy suffix-less format */
2083 mem_str = qemu_opt_get(opts, "size");
2084 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2085 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2086 qdict_put_str(prop, "size", mib_str);
2087 } else {
2088 qdict_put_str(prop, "size", mem_str);
2089 }
2090 }
2091
2092 if (qemu_opt_get(opts, "maxmem")) {
2093 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2094 }
2095 if (qemu_opt_get(opts, "slots")) {
2096 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2097 }
2098
2099 dict = qdict_new();
2100 qdict_put(dict, "memory", prop);
2101 keyval_merge(machine_opts_dict, dict, &error_fatal);
2102 qobject_unref(dict);
2103 loc_pop(&loc);
2104 }
2105
2106 static void qemu_create_machine(QDict *qdict)
2107 {
2108 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2109 object_set_machine_compat_props(machine_class->compat_props);
2110
2111 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2112 object_property_add_child(object_get_root(), "machine",
2113 OBJECT(current_machine));
2114 object_property_add_child(container_get(OBJECT(current_machine),
2115 "/unattached"),
2116 "sysbus", OBJECT(sysbus_get_default()));
2117
2118 if (machine_class->minimum_page_bits) {
2119 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2120 /* This would be a board error: specifying a minimum smaller than
2121 * a target's compile-time fixed setting.
2122 */
2123 g_assert_not_reached();
2124 }
2125 }
2126
2127 cpu_exec_init_all();
2128
2129 if (machine_class->hw_version) {
2130 qemu_set_hw_version(machine_class->hw_version);
2131 }
2132
2133 /*
2134 * Get the default machine options from the machine if it is not already
2135 * specified either by the configuration file or by the command line.
2136 */
2137 if (machine_class->default_machine_opts) {
2138 QDict *default_opts =
2139 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2140 &error_abort);
2141 qemu_apply_legacy_machine_options(default_opts);
2142 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2143 false, &error_abort);
2144 qobject_unref(default_opts);
2145 }
2146 }
2147
2148 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2149 {
2150 GlobalProperty *g;
2151
2152 g = g_malloc0(sizeof(*g));
2153 g->driver = qemu_opt_get(opts, "driver");
2154 g->property = qemu_opt_get(opts, "property");
2155 g->value = qemu_opt_get(opts, "value");
2156 qdev_prop_register_global(g);
2157 return 0;
2158 }
2159
2160 /*
2161 * Return whether configuration group @group is stored in QemuOpts, or
2162 * recorded as one or more QDicts by qemu_record_config_group.
2163 */
2164 static bool is_qemuopts_group(const char *group)
2165 {
2166 if (g_str_equal(group, "object") ||
2167 g_str_equal(group, "audiodev") ||
2168 g_str_equal(group, "machine") ||
2169 g_str_equal(group, "smp-opts") ||
2170 g_str_equal(group, "boot-opts")) {
2171 return false;
2172 }
2173 return true;
2174 }
2175
2176 static void qemu_record_config_group(const char *group, QDict *dict,
2177 bool from_json, Error **errp)
2178 {
2179 if (g_str_equal(group, "object")) {
2180 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2181 object_option_add_visitor(v);
2182 visit_free(v);
2183
2184 } else if (g_str_equal(group, "audiodev")) {
2185 Audiodev *dev = NULL;
2186 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2187 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2188 audio_define(dev);
2189 }
2190 visit_free(v);
2191
2192 } else if (g_str_equal(group, "machine")) {
2193 /*
2194 * Cannot merge string-valued and type-safe dictionaries, so JSON
2195 * is not accepted yet for -M.
2196 */
2197 assert(!from_json);
2198 keyval_merge(machine_opts_dict, dict, errp);
2199 } else if (g_str_equal(group, "smp-opts")) {
2200 machine_merge_property("smp", dict, &error_fatal);
2201 } else if (g_str_equal(group, "boot-opts")) {
2202 machine_merge_property("boot", dict, &error_fatal);
2203 } else {
2204 abort();
2205 }
2206 }
2207
2208 /*
2209 * Parse non-QemuOpts config file groups, pass the rest to
2210 * qemu_config_do_parse.
2211 */
2212 static void qemu_parse_config_group(const char *group, QDict *qdict,
2213 void *opaque, Error **errp)
2214 {
2215 QObject *crumpled;
2216 if (is_qemuopts_group(group)) {
2217 qemu_config_do_parse(group, qdict, opaque, errp);
2218 return;
2219 }
2220
2221 crumpled = qdict_crumple(qdict, errp);
2222 if (!crumpled) {
2223 return;
2224 }
2225 switch (qobject_type(crumpled)) {
2226 case QTYPE_QDICT:
2227 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2228 break;
2229 case QTYPE_QLIST:
2230 error_setg(errp, "Lists cannot be at top level of a configuration section");
2231 break;
2232 default:
2233 g_assert_not_reached();
2234 }
2235 qobject_unref(crumpled);
2236 }
2237
2238 static void qemu_read_default_config_file(Error **errp)
2239 {
2240 ERRP_GUARD();
2241 int ret;
2242 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2243
2244 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2245 if (ret < 0) {
2246 if (ret == -ENOENT) {
2247 error_free(*errp);
2248 *errp = NULL;
2249 }
2250 }
2251 }
2252
2253 static void qemu_set_option(const char *str, Error **errp)
2254 {
2255 char group[64], id[64], arg[64];
2256 QemuOptsList *list;
2257 QemuOpts *opts;
2258 int rc, offset;
2259
2260 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2261 if (rc < 3 || str[offset] != '=') {
2262 error_setg(errp, "can't parse: \"%s\"", str);
2263 return;
2264 }
2265
2266 if (!is_qemuopts_group(group)) {
2267 error_setg(errp, "-set is not supported with %s", group);
2268 } else {
2269 list = qemu_find_opts_err(group, errp);
2270 if (list) {
2271 opts = qemu_opts_find(list, id);
2272 if (!opts) {
2273 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2274 return;
2275 }
2276 qemu_opt_set(opts, arg, str + offset + 1, errp);
2277 }
2278 }
2279 }
2280
2281 static void user_register_global_props(void)
2282 {
2283 qemu_opts_foreach(qemu_find_opts("global"),
2284 global_init_func, NULL, NULL);
2285 }
2286
2287 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2288 {
2289 return !icount_configure(opts, errp);
2290 }
2291
2292 static int accelerator_set_property(void *opaque,
2293 const char *name, const char *value,
2294 Error **errp)
2295 {
2296 return object_parse_property_opt(opaque, name, value, "accel", errp);
2297 }
2298
2299 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2300 {
2301 bool *p_init_failed = opaque;
2302 const char *acc = qemu_opt_get(opts, "accel");
2303 AccelClass *ac = accel_find(acc);
2304 AccelState *accel;
2305 int ret;
2306 bool qtest_with_kvm;
2307
2308 if (!acc) {
2309 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2310 goto bad;
2311 }
2312
2313 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2314
2315 if (!ac) {
2316 if (!qtest_with_kvm) {
2317 error_report("invalid accelerator %s", acc);
2318 }
2319 goto bad;
2320 }
2321 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2322 object_apply_compat_props(OBJECT(accel));
2323 qemu_opt_foreach(opts, accelerator_set_property,
2324 accel,
2325 &error_fatal);
2326
2327 ret = accel_init_machine(accel, current_machine);
2328 if (ret < 0) {
2329 if (!qtest_with_kvm || ret != -ENOENT) {
2330 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2331 }
2332 goto bad;
2333 }
2334
2335 return 1;
2336
2337 bad:
2338 *p_init_failed = true;
2339 return 0;
2340 }
2341
2342 static void configure_accelerators(const char *progname)
2343 {
2344 bool init_failed = false;
2345
2346 qemu_opts_foreach(qemu_find_opts("icount"),
2347 do_configure_icount, NULL, &error_fatal);
2348
2349 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2350 char **accel_list, **tmp;
2351
2352 if (accelerators == NULL) {
2353 /* Select the default accelerator */
2354 bool have_tcg = accel_find("tcg");
2355 bool have_kvm = accel_find("kvm");
2356
2357 if (have_tcg && have_kvm) {
2358 if (g_str_has_suffix(progname, "kvm")) {
2359 /* If the program name ends with "kvm", we prefer KVM */
2360 accelerators = "kvm:tcg";
2361 } else {
2362 accelerators = "tcg:kvm";
2363 }
2364 } else if (have_kvm) {
2365 accelerators = "kvm";
2366 } else if (have_tcg) {
2367 accelerators = "tcg";
2368 } else {
2369 error_report("No accelerator selected and"
2370 " no default accelerator available");
2371 exit(1);
2372 }
2373 }
2374 accel_list = g_strsplit(accelerators, ":", 0);
2375
2376 for (tmp = accel_list; *tmp; tmp++) {
2377 /*
2378 * Filter invalid accelerators here, to prevent obscenities
2379 * such as "-machine accel=tcg,,thread=single".
2380 */
2381 if (accel_find(*tmp)) {
2382 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2383 } else {
2384 init_failed = true;
2385 error_report("invalid accelerator %s", *tmp);
2386 }
2387 }
2388 g_strfreev(accel_list);
2389 } else {
2390 if (accelerators != NULL) {
2391 error_report("The -accel and \"-machine accel=\" options are incompatible");
2392 exit(1);
2393 }
2394 }
2395
2396 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2397 do_configure_accelerator, &init_failed, &error_fatal)) {
2398 if (!init_failed) {
2399 error_report("no accelerator found");
2400 }
2401 exit(1);
2402 }
2403
2404 if (init_failed && !qtest_chrdev) {
2405 error_report("falling back to %s", current_accel_name());
2406 }
2407
2408 if (icount_enabled() && !tcg_enabled()) {
2409 error_report("-icount is not allowed with hardware virtualization");
2410 exit(1);
2411 }
2412 }
2413
2414 static void qemu_validate_options(const QDict *machine_opts)
2415 {
2416 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2417 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2418 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2419
2420 if (kernel_filename == NULL) {
2421 if (kernel_cmdline != NULL) {
2422 error_report("-append only allowed with -kernel option");
2423 exit(1);
2424 }
2425
2426 if (initrd_filename != NULL) {
2427 error_report("-initrd only allowed with -kernel option");
2428 exit(1);
2429 }
2430 }
2431
2432 if (loadvm && incoming) {
2433 error_report("'incoming' and 'loadvm' options are mutually exclusive");
2434 exit(EXIT_FAILURE);
2435 }
2436 if (loadvm && preconfig_requested) {
2437 error_report("'preconfig' and 'loadvm' options are "
2438 "mutually exclusive");
2439 exit(EXIT_FAILURE);
2440 }
2441 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2442 error_report("'preconfig' supports '-incoming defer' only");
2443 exit(EXIT_FAILURE);
2444 }
2445
2446 #ifdef CONFIG_CURSES
2447 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2448 error_report("curses display cannot be used with -daemonize");
2449 exit(1);
2450 }
2451 #endif
2452 }
2453
2454 static void qemu_process_sugar_options(void)
2455 {
2456 if (mem_prealloc) {
2457 QObject *smp = qdict_get(machine_opts_dict, "smp");
2458 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2459 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2460 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2461 const char *val = qstring_get_str(qobject_to(QString, cpus));
2462 object_register_sugar_prop("memory-backend", "prealloc-threads",
2463 val, false);
2464 }
2465 }
2466 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2467 }
2468 }
2469
2470 /* -action processing */
2471
2472 /*
2473 * Process all the -action parameters parsed from cmdline.
2474 */
2475 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2476 {
2477 Error *local_err = NULL;
2478 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2479 QObject *ret = NULL;
2480 qmp_marshal_set_action(qdict, &ret, &local_err);
2481 qobject_unref(ret);
2482 qobject_unref(qdict);
2483 if (local_err) {
2484 error_propagate(errp, local_err);
2485 return 1;
2486 }
2487 return 0;
2488 }
2489
2490 static void qemu_process_early_options(void)
2491 {
2492 qemu_opts_foreach(qemu_find_opts("name"),
2493 parse_name, NULL, &error_fatal);
2494
2495 object_option_foreach_add(object_create_pre_sandbox);
2496
2497 #ifdef CONFIG_SECCOMP
2498 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2499 if (olist) {
2500 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2501 }
2502 #endif
2503
2504 if (qemu_opts_foreach(qemu_find_opts("action"),
2505 process_runstate_actions, NULL, &error_fatal)) {
2506 exit(1);
2507 }
2508
2509 #ifndef _WIN32
2510 qemu_opts_foreach(qemu_find_opts("add-fd"),
2511 parse_add_fd, NULL, &error_fatal);
2512
2513 qemu_opts_foreach(qemu_find_opts("add-fd"),
2514 cleanup_add_fd, NULL, &error_fatal);
2515 #endif
2516
2517 /* Open the logfile at this point and set the log mask if necessary. */
2518 {
2519 int mask = 0;
2520 if (log_mask) {
2521 mask = qemu_str_to_log_mask(log_mask);
2522 if (!mask) {
2523 qemu_print_log_usage(stdout);
2524 exit(1);
2525 }
2526 }
2527 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2528 }
2529
2530 qemu_add_default_firmwarepath();
2531 }
2532
2533 static void qemu_process_help_options(void)
2534 {
2535 /*
2536 * Check for -cpu help and -device help before we call select_machine(),
2537 * which will return an error if the architecture has no default machine
2538 * type and the user did not specify one, so that the user doesn't need
2539 * to say '-cpu help -machine something'.
2540 */
2541 if (cpu_option && is_help_option(cpu_option)) {
2542 list_cpus();
2543 exit(0);
2544 }
2545
2546 if (qemu_opts_foreach(qemu_find_opts("device"),
2547 device_help_func, NULL, NULL)) {
2548 exit(0);
2549 }
2550
2551 /* -L help lists the data directories and exits. */
2552 if (list_data_dirs) {
2553 qemu_list_data_dirs();
2554 exit(0);
2555 }
2556 }
2557
2558 static void qemu_maybe_daemonize(const char *pid_file)
2559 {
2560 Error *err = NULL;
2561
2562 os_daemonize();
2563 rcu_disable_atfork();
2564
2565 if (pid_file) {
2566 char *pid_file_realpath = NULL;
2567
2568 if (!qemu_write_pidfile(pid_file, &err)) {
2569 error_reportf_err(err, "cannot create PID file: ");
2570 exit(1);
2571 }
2572
2573 pid_file_realpath = g_malloc0(PATH_MAX);
2574 if (!realpath(pid_file, pid_file_realpath)) {
2575 if (errno != ENOENT) {
2576 warn_report("not removing PID file on exit: cannot resolve PID "
2577 "file path: %s: %s", pid_file, strerror(errno));
2578 }
2579 return;
2580 }
2581
2582 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2583 .notifier = {
2584 .notify = qemu_unlink_pidfile,
2585 },
2586 .pid_file_realpath = pid_file_realpath,
2587 };
2588 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2589 }
2590 }
2591
2592 static void qemu_init_displays(void)
2593 {
2594 DisplayState *ds;
2595
2596 /* init local displays */
2597 ds = init_displaystate();
2598 qemu_display_init(ds, &dpy);
2599
2600 /* must be after terminal init, SDL library changes signal handlers */
2601 os_setup_signal_handling();
2602
2603 /* init remote displays */
2604 #ifdef CONFIG_VNC
2605 qemu_opts_foreach(qemu_find_opts("vnc"),
2606 vnc_init_func, NULL, &error_fatal);
2607 #endif
2608
2609 if (using_spice) {
2610 qemu_spice.display_init();
2611 }
2612 }
2613
2614 static void qemu_init_board(void)
2615 {
2616 /* process plugin before CPUs are created, but once -smp has been parsed */
2617 qemu_plugin_load_list(&plugin_list, &error_fatal);
2618
2619 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2620 machine_run_board_init(current_machine, mem_path, &error_fatal);
2621
2622 drive_check_orphaned();
2623
2624 realtime_init();
2625 }
2626
2627 static void qemu_create_cli_devices(void)
2628 {
2629 DeviceOption *opt;
2630
2631 soundhw_init();
2632
2633 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2634 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2635
2636 /* init USB devices */
2637 if (machine_usb(current_machine)) {
2638 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2639 exit(1);
2640 }
2641
2642 /* init generic devices */
2643 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2644 qemu_opts_foreach(qemu_find_opts("device"),
2645 device_init_func, NULL, &error_fatal);
2646 QTAILQ_FOREACH(opt, &device_opts, next) {
2647 DeviceState *dev;
2648 loc_push_restore(&opt->loc);
2649 /*
2650 * TODO Eventually we should call qmp_device_add() here to make sure it
2651 * behaves the same, but QMP still has to accept incorrectly typed
2652 * options until libvirt is fixed and we want to be strict on the CLI
2653 * from the start, so call qdev_device_add_from_qdict() directly for
2654 * now.
2655 */
2656 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2657 object_unref(OBJECT(dev));
2658 loc_pop(&opt->loc);
2659 }
2660 rom_reset_order_override();
2661 }
2662
2663 static bool qemu_machine_creation_done(Error **errp)
2664 {
2665 MachineState *machine = MACHINE(qdev_get_machine());
2666
2667 /* Did we create any drives that we failed to create a device for? */
2668 drive_check_orphaned();
2669
2670 /* Don't warn about the default network setup that you get if
2671 * no command line -net or -netdev options are specified. There
2672 * are two cases that we would otherwise complain about:
2673 * (1) board doesn't support a NIC but the implicit "-net nic"
2674 * requested one
2675 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2676 * sets up a nic that isn't connected to anything.
2677 */
2678 if (!default_net && (!qtest_enabled() || has_defaults)) {
2679 net_check_clients();
2680 }
2681
2682 qdev_prop_check_globals();
2683
2684 qdev_machine_creation_done();
2685
2686 if (machine->cgs && !machine->cgs->ready) {
2687 error_setg(errp, "accelerator does not support confidential guest %s",
2688 object_get_typename(OBJECT(machine->cgs)));
2689 exit(1);
2690 }
2691
2692 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2693 error_setg(errp, "could not start gdbserver");
2694 return false;
2695 }
2696 if (!vga_interface_created && !default_vga &&
2697 vga_interface_type != VGA_NONE) {
2698 warn_report("A -vga option was passed but this machine "
2699 "type does not use that option; "
2700 "No VGA device has been created");
2701 }
2702 return true;
2703 }
2704
2705 void qmp_x_exit_preconfig(Error **errp)
2706 {
2707 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2708 error_setg(errp, "The command is permitted only before machine initialization");
2709 return;
2710 }
2711
2712 qemu_init_board();
2713 qemu_create_cli_devices();
2714 if (!qemu_machine_creation_done(errp)) {
2715 return;
2716 }
2717
2718 if (loadvm) {
2719 RunState state = autostart ? RUN_STATE_RUNNING : runstate_get();
2720 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2721 load_snapshot_resume(state);
2722 }
2723 if (replay_mode != REPLAY_MODE_NONE) {
2724 replay_vmstate_init();
2725 }
2726
2727 if (incoming) {
2728 Error *local_err = NULL;
2729 if (strcmp(incoming, "defer") != 0) {
2730 qmp_migrate_incoming(incoming, false, NULL, true, true,
2731 &local_err);
2732 if (local_err) {
2733 error_reportf_err(local_err, "-incoming %s: ", incoming);
2734 exit(1);
2735 }
2736 }
2737 } else if (autostart) {
2738 qmp_cont(NULL);
2739 }
2740 }
2741
2742 void qemu_init(int argc, char **argv)
2743 {
2744 QemuOpts *opts;
2745 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2746 QemuOptsList *olist;
2747 int optind;
2748 const char *optarg;
2749 MachineClass *machine_class;
2750 bool userconfig = true;
2751 FILE *vmstate_dump_file = NULL;
2752
2753 qemu_add_opts(&qemu_drive_opts);
2754 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2755 qemu_add_drive_opts(&qemu_common_drive_opts);
2756 qemu_add_drive_opts(&qemu_drive_opts);
2757 qemu_add_drive_opts(&bdrv_runtime_opts);
2758 qemu_add_opts(&qemu_chardev_opts);
2759 qemu_add_opts(&qemu_device_opts);
2760 qemu_add_opts(&qemu_netdev_opts);
2761 qemu_add_opts(&qemu_nic_opts);
2762 qemu_add_opts(&qemu_net_opts);
2763 qemu_add_opts(&qemu_rtc_opts);
2764 qemu_add_opts(&qemu_global_opts);
2765 qemu_add_opts(&qemu_mon_opts);
2766 qemu_add_opts(&qemu_trace_opts);
2767 qemu_plugin_add_opts();
2768 qemu_add_opts(&qemu_option_rom_opts);
2769 qemu_add_opts(&qemu_accel_opts);
2770 qemu_add_opts(&qemu_mem_opts);
2771 qemu_add_opts(&qemu_smp_opts);
2772 qemu_add_opts(&qemu_boot_opts);
2773 qemu_add_opts(&qemu_add_fd_opts);
2774 qemu_add_opts(&qemu_object_opts);
2775 qemu_add_opts(&qemu_tpmdev_opts);
2776 qemu_add_opts(&qemu_overcommit_opts);
2777 qemu_add_opts(&qemu_msg_opts);
2778 qemu_add_opts(&qemu_name_opts);
2779 qemu_add_opts(&qemu_numa_opts);
2780 qemu_add_opts(&qemu_icount_opts);
2781 qemu_add_opts(&qemu_semihosting_config_opts);
2782 qemu_add_opts(&qemu_fw_cfg_opts);
2783 qemu_add_opts(&qemu_action_opts);
2784 qemu_add_run_with_opts();
2785 module_call_init(MODULE_INIT_OPTS);
2786
2787 error_init(argv[0]);
2788 qemu_init_exec_dir(argv[0]);
2789
2790 os_setup_limits();
2791
2792 qemu_init_arch_modules();
2793
2794 qemu_init_subsystems();
2795
2796 /* first pass of option parsing */
2797 optind = 1;
2798 while (optind < argc) {
2799 if (argv[optind][0] != '-') {
2800 /* disk image */
2801 optind++;
2802 } else {
2803 const QEMUOption *popt;
2804
2805 popt = lookup_opt(argc, argv, &optarg, &optind);
2806 switch (popt->index) {
2807 case QEMU_OPTION_nouserconfig:
2808 userconfig = false;
2809 break;
2810 }
2811 }
2812 }
2813
2814 machine_opts_dict = qdict_new();
2815 if (userconfig) {
2816 qemu_read_default_config_file(&error_fatal);
2817 }
2818
2819 /* second pass of option parsing */
2820 optind = 1;
2821 for(;;) {
2822 if (optind >= argc)
2823 break;
2824 if (argv[optind][0] != '-') {
2825 loc_set_cmdline(argv, optind, 1);
2826 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2827 } else {
2828 const QEMUOption *popt;
2829
2830 popt = lookup_opt(argc, argv, &optarg, &optind);
2831 if (!(popt->arch_mask & arch_type)) {
2832 error_report("Option not supported for this target");
2833 exit(1);
2834 }
2835 switch(popt->index) {
2836 case QEMU_OPTION_cpu:
2837 /* hw initialization will check this */
2838 cpu_option = optarg;
2839 break;
2840 case QEMU_OPTION_hda:
2841 case QEMU_OPTION_hdb:
2842 case QEMU_OPTION_hdc:
2843 case QEMU_OPTION_hdd:
2844 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2845 HD_OPTS);
2846 break;
2847 case QEMU_OPTION_blockdev:
2848 {
2849 Visitor *v;
2850 BlockdevOptionsQueueEntry *bdo;
2851
2852 v = qobject_input_visitor_new_str(optarg, "driver",
2853 &error_fatal);
2854
2855 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2856 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2857 &error_fatal);
2858 visit_free(v);
2859 loc_save(&bdo->loc);
2860 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2861 break;
2862 }
2863 case QEMU_OPTION_drive:
2864 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2865 optarg, false);
2866 if (opts == NULL) {
2867 exit(1);
2868 }
2869 break;
2870 case QEMU_OPTION_set:
2871 qemu_set_option(optarg, &error_fatal);
2872 break;
2873 case QEMU_OPTION_global:
2874 if (qemu_global_option(optarg) != 0)
2875 exit(1);
2876 break;
2877 case QEMU_OPTION_mtdblock:
2878 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2879 break;
2880 case QEMU_OPTION_sd:
2881 drive_add(IF_SD, -1, optarg, SD_OPTS);
2882 break;
2883 case QEMU_OPTION_pflash:
2884 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2885 break;
2886 case QEMU_OPTION_snapshot:
2887 snapshot = 1;
2888 replay_add_blocker("-snapshot");
2889 break;
2890 case QEMU_OPTION_numa:
2891 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2892 optarg, true);
2893 if (!opts) {
2894 exit(1);
2895 }
2896 break;
2897 case QEMU_OPTION_display:
2898 parse_display(optarg);
2899 break;
2900 case QEMU_OPTION_nographic:
2901 qdict_put_str(machine_opts_dict, "graphics", "off");
2902 nographic = true;
2903 dpy.type = DISPLAY_TYPE_NONE;
2904 break;
2905 case QEMU_OPTION_portrait:
2906 graphic_rotate = 90;
2907 break;
2908 case QEMU_OPTION_rotate:
2909 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2910 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2911 graphic_rotate != 180 && graphic_rotate != 270) {
2912 error_report("only 90, 180, 270 deg rotation is available");
2913 exit(1);
2914 }
2915 break;
2916 case QEMU_OPTION_kernel:
2917 qdict_put_str(machine_opts_dict, "kernel", optarg);
2918 break;
2919 case QEMU_OPTION_initrd:
2920 qdict_put_str(machine_opts_dict, "initrd", optarg);
2921 break;
2922 case QEMU_OPTION_append:
2923 qdict_put_str(machine_opts_dict, "append", optarg);
2924 break;
2925 case QEMU_OPTION_dtb:
2926 qdict_put_str(machine_opts_dict, "dtb", optarg);
2927 break;
2928 case QEMU_OPTION_cdrom:
2929 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2930 break;
2931 case QEMU_OPTION_boot:
2932 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2933 break;
2934 case QEMU_OPTION_fda:
2935 case QEMU_OPTION_fdb:
2936 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2937 optarg, FD_OPTS);
2938 break;
2939 case QEMU_OPTION_no_fd_bootchk:
2940 qdict_put_str(machine_opts_dict, "fd-bootchk", "off");
2941 break;
2942 case QEMU_OPTION_netdev:
2943 default_net = 0;
2944 if (netdev_is_modern(optarg)) {
2945 netdev_parse_modern(optarg);
2946 } else {
2947 net_client_parse(qemu_find_opts("netdev"), optarg);
2948 }
2949 break;
2950 case QEMU_OPTION_nic:
2951 default_net = 0;
2952 net_client_parse(qemu_find_opts("nic"), optarg);
2953 break;
2954 case QEMU_OPTION_net:
2955 default_net = 0;
2956 net_client_parse(qemu_find_opts("net"), optarg);
2957 break;
2958 #ifdef CONFIG_LIBISCSI
2959 case QEMU_OPTION_iscsi:
2960 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2961 optarg, false);
2962 if (!opts) {
2963 exit(1);
2964 }
2965 break;
2966 #endif
2967 case QEMU_OPTION_audiodev:
2968 default_audio = 0;
2969 audio_parse_option(optarg);
2970 break;
2971 case QEMU_OPTION_audio: {
2972 bool help;
2973 char *model = NULL;
2974 Audiodev *dev = NULL;
2975 Visitor *v;
2976 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2977 default_audio = 0;
2978 if (help || (qdict_haskey(dict, "driver") &&
2979 is_help_option(qdict_get_str(dict, "driver")))) {
2980 audio_help();
2981 exit(EXIT_SUCCESS);
2982 }
2983 if (!qdict_haskey(dict, "id")) {
2984 qdict_put_str(dict, "id", "audiodev0");
2985 }
2986 if (qdict_haskey(dict, "model")) {
2987 model = g_strdup(qdict_get_str(dict, "model"));
2988 qdict_del(dict, "model");
2989 if (is_help_option(model)) {
2990 show_valid_soundhw();
2991 exit(0);
2992 }
2993 }
2994 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2995 qobject_unref(dict);
2996 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2997 visit_free(v);
2998 if (model) {
2999 audio_define(dev);
3000 select_soundhw(model, dev->id);
3001 g_free(model);
3002 } else {
3003 audio_define_default(dev, &error_fatal);
3004 }
3005 break;
3006 }
3007 case QEMU_OPTION_h:
3008 help(0);
3009 break;
3010 case QEMU_OPTION_version:
3011 version();
3012 exit(0);
3013 break;
3014 case QEMU_OPTION_m:
3015 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
3016 if (opts == NULL) {
3017 exit(1);
3018 }
3019 break;
3020 #ifdef CONFIG_TPM
3021 case QEMU_OPTION_tpmdev:
3022 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3023 exit(1);
3024 }
3025 break;
3026 #endif
3027 case QEMU_OPTION_mempath:
3028 mem_path = optarg;
3029 break;
3030 case QEMU_OPTION_mem_prealloc:
3031 mem_prealloc = 1;
3032 break;
3033 case QEMU_OPTION_d:
3034 log_mask = optarg;
3035 break;
3036 case QEMU_OPTION_D:
3037 log_file = optarg;
3038 break;
3039 case QEMU_OPTION_DFILTER:
3040 qemu_set_dfilter_ranges(optarg, &error_fatal);
3041 break;
3042 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3043 case QEMU_OPTION_perfmap:
3044 perf_enable_perfmap();
3045 break;
3046 case QEMU_OPTION_jitdump:
3047 perf_enable_jitdump();
3048 break;
3049 #endif
3050 case QEMU_OPTION_seed:
3051 qemu_guest_random_seed_main(optarg, &error_fatal);
3052 break;
3053 case QEMU_OPTION_s:
3054 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3055 break;
3056 case QEMU_OPTION_gdb:
3057 add_device_config(DEV_GDB, optarg);
3058 break;
3059 case QEMU_OPTION_L:
3060 if (is_help_option(optarg)) {
3061 list_data_dirs = true;
3062 } else {
3063 qemu_add_data_dir(g_strdup(optarg));
3064 }
3065 break;
3066 case QEMU_OPTION_bios:
3067 qdict_put_str(machine_opts_dict, "firmware", optarg);
3068 break;
3069 case QEMU_OPTION_S:
3070 autostart = 0;
3071 break;
3072 case QEMU_OPTION_k:
3073 keyboard_layout = optarg;
3074 break;
3075 case QEMU_OPTION_vga:
3076 vga_model = optarg;
3077 default_vga = 0;
3078 break;
3079 case QEMU_OPTION_g:
3080 {
3081 const char *p;
3082 int w, h, depth;
3083 p = optarg;
3084 w = strtol(p, (char **)&p, 10);
3085 if (w <= 0) {
3086 graphic_error:
3087 error_report("invalid resolution or depth");
3088 exit(1);
3089 }
3090 if (*p != 'x')
3091 goto graphic_error;
3092 p++;
3093 h = strtol(p, (char **)&p, 10);
3094 if (h <= 0)
3095 goto graphic_error;
3096 if (*p == 'x') {
3097 p++;
3098 depth = strtol(p, (char **)&p, 10);
3099 if (depth != 1 && depth != 2 && depth != 4 &&
3100 depth != 8 && depth != 15 && depth != 16 &&
3101 depth != 24 && depth != 32)
3102 goto graphic_error;
3103 } else if (*p == '\0') {
3104 depth = graphic_depth;
3105 } else {
3106 goto graphic_error;
3107 }
3108
3109 graphic_width = w;
3110 graphic_height = h;
3111 graphic_depth = depth;
3112 }
3113 break;
3114 case QEMU_OPTION_echr:
3115 {
3116 char *r;
3117 term_escape_char = strtol(optarg, &r, 0);
3118 if (r == optarg)
3119 printf("Bad argument to echr\n");
3120 break;
3121 }
3122 case QEMU_OPTION_monitor:
3123 default_monitor = 0;
3124 if (strncmp(optarg, "none", 4)) {
3125 monitor_parse(optarg, "readline", false);
3126 }
3127 break;
3128 case QEMU_OPTION_qmp:
3129 monitor_parse(optarg, "control", false);
3130 default_monitor = 0;
3131 break;
3132 case QEMU_OPTION_qmp_pretty:
3133 monitor_parse(optarg, "control", true);
3134 default_monitor = 0;
3135 break;
3136 case QEMU_OPTION_mon:
3137 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3138 true);
3139 if (!opts) {
3140 exit(1);
3141 }
3142 default_monitor = 0;
3143 break;
3144 case QEMU_OPTION_chardev:
3145 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3146 optarg, true);
3147 if (!opts) {
3148 exit(1);
3149 }
3150 break;
3151 case QEMU_OPTION_fsdev:
3152 olist = qemu_find_opts("fsdev");
3153 if (!olist) {
3154 error_report("fsdev support is disabled");
3155 exit(1);
3156 }
3157 opts = qemu_opts_parse_noisily(olist, optarg, true);
3158 if (!opts) {
3159 exit(1);
3160 }
3161 break;
3162 case QEMU_OPTION_virtfs: {
3163 QemuOpts *fsdev;
3164 QemuOpts *device;
3165 const char *writeout, *sock_fd, *socket, *path, *security_model,
3166 *multidevs;
3167
3168 olist = qemu_find_opts("virtfs");
3169 if (!olist) {
3170 error_report("virtfs support is disabled");
3171 exit(1);
3172 }
3173 opts = qemu_opts_parse_noisily(olist, optarg, true);
3174 if (!opts) {
3175 exit(1);
3176 }
3177
3178 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3179 qemu_opt_get(opts, "mount_tag") == NULL) {
3180 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3181 exit(1);
3182 }
3183 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3184 qemu_opts_id(opts) ?:
3185 qemu_opt_get(opts, "mount_tag"),
3186 1, NULL);
3187 if (!fsdev) {
3188 error_report("duplicate or invalid fsdev id: %s",
3189 qemu_opt_get(opts, "mount_tag"));
3190 exit(1);
3191 }
3192
3193 writeout = qemu_opt_get(opts, "writeout");
3194 if (writeout) {
3195 #ifdef CONFIG_SYNC_FILE_RANGE
3196 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3197 #else
3198 error_report("writeout=immediate not supported "
3199 "on this platform");
3200 exit(1);
3201 #endif
3202 }
3203 qemu_opt_set(fsdev, "fsdriver",
3204 qemu_opt_get(opts, "fsdriver"), &error_abort);
3205 path = qemu_opt_get(opts, "path");
3206 if (path) {
3207 qemu_opt_set(fsdev, "path", path, &error_abort);
3208 }
3209 security_model = qemu_opt_get(opts, "security_model");
3210 if (security_model) {
3211 qemu_opt_set(fsdev, "security_model", security_model,
3212 &error_abort);
3213 }
3214 socket = qemu_opt_get(opts, "socket");
3215 if (socket) {
3216 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3217 }
3218 sock_fd = qemu_opt_get(opts, "sock_fd");
3219 if (sock_fd) {
3220 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3221 }
3222
3223 qemu_opt_set_bool(fsdev, "readonly",
3224 qemu_opt_get_bool(opts, "readonly", 0),
3225 &error_abort);
3226 multidevs = qemu_opt_get(opts, "multidevs");
3227 if (multidevs) {
3228 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3229 }
3230 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3231 &error_abort);
3232 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3233 qemu_opt_set(device, "fsdev",
3234 qemu_opts_id(fsdev), &error_abort);
3235 qemu_opt_set(device, "mount_tag",
3236 qemu_opt_get(opts, "mount_tag"), &error_abort);
3237 break;
3238 }
3239 case QEMU_OPTION_serial:
3240 add_device_config(DEV_SERIAL, optarg);
3241 default_serial = 0;
3242 if (strncmp(optarg, "mon:", 4) == 0) {
3243 default_monitor = 0;
3244 }
3245 break;
3246 case QEMU_OPTION_action:
3247 olist = qemu_find_opts("action");
3248 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3249 exit(1);
3250 }
3251 break;
3252 case QEMU_OPTION_watchdog_action: {
3253 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3254 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3255 break;
3256 }
3257 case QEMU_OPTION_parallel:
3258 add_device_config(DEV_PARALLEL, optarg);
3259 default_parallel = 0;
3260 if (strncmp(optarg, "mon:", 4) == 0) {
3261 default_monitor = 0;
3262 }
3263 break;
3264 case QEMU_OPTION_debugcon:
3265 add_device_config(DEV_DEBUGCON, optarg);
3266 break;
3267 case QEMU_OPTION_loadvm:
3268 loadvm = optarg;
3269 break;
3270 case QEMU_OPTION_full_screen:
3271 dpy.has_full_screen = true;
3272 dpy.full_screen = true;
3273 break;
3274 case QEMU_OPTION_pidfile:
3275 pid_file = optarg;
3276 break;
3277 case QEMU_OPTION_win2k_hack:
3278 object_register_sugar_prop("ide-device", "win2k-install-hack", "true", true);
3279 break;
3280 case QEMU_OPTION_acpitable:
3281 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3282 optarg, true);
3283 if (!opts) {
3284 exit(1);
3285 }
3286 acpi_table_add(opts, &error_fatal);
3287 break;
3288 case QEMU_OPTION_smbios:
3289 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3290 optarg, false);
3291 if (!opts) {
3292 exit(1);
3293 }
3294 smbios_entry_add(opts, &error_fatal);
3295 break;
3296 case QEMU_OPTION_fwcfg:
3297 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3298 optarg, true);
3299 if (opts == NULL) {
3300 exit(1);
3301 }
3302 break;
3303 case QEMU_OPTION_preconfig:
3304 preconfig_requested = true;
3305 break;
3306 case QEMU_OPTION_enable_kvm:
3307 qdict_put_str(machine_opts_dict, "accel", "kvm");
3308 break;
3309 case QEMU_OPTION_M:
3310 case QEMU_OPTION_machine:
3311 {
3312 bool help;
3313
3314 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3315 if (help) {
3316 machine_help_func(machine_opts_dict);
3317 exit(EXIT_SUCCESS);
3318 }
3319 break;
3320 }
3321 case QEMU_OPTION_accel:
3322 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3323 optarg, true);
3324 optarg = qemu_opt_get(accel_opts, "accel");
3325 if (!optarg || is_help_option(optarg)) {
3326 printf("Accelerators supported in QEMU binary:\n");
3327 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3328 false);
3329 for (el = accel_list; el; el = el->next) {
3330 gchar *typename = g_strdup(object_class_get_name(
3331 OBJECT_CLASS(el->data)));
3332 /* omit qtest which is used for tests only */
3333 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3334 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3335 gchar **optname = g_strsplit(typename,
3336 ACCEL_CLASS_SUFFIX, 0);
3337 printf("%s\n", optname[0]);
3338 g_strfreev(optname);
3339 }
3340 g_free(typename);
3341 }
3342 g_slist_free(accel_list);
3343 exit(0);
3344 }
3345 break;
3346 case QEMU_OPTION_usb:
3347 qdict_put_str(machine_opts_dict, "usb", "on");
3348 break;
3349 case QEMU_OPTION_usbdevice:
3350 qdict_put_str(machine_opts_dict, "usb", "on");
3351 add_device_config(DEV_USB, optarg);
3352 break;
3353 case QEMU_OPTION_device:
3354 if (optarg[0] == '{') {
3355 QObject *obj = qobject_from_json(optarg, &error_fatal);
3356 DeviceOption *opt = g_new0(DeviceOption, 1);
3357 opt->opts = qobject_to(QDict, obj);
3358 loc_save(&opt->loc);
3359 assert(opt->opts != NULL);
3360 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3361 } else {
3362 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3363 optarg, true)) {
3364 exit(1);
3365 }
3366 }
3367 break;
3368 case QEMU_OPTION_smp:
3369 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3370 "smp", optarg);
3371 break;
3372 #ifdef CONFIG_VNC
3373 case QEMU_OPTION_vnc:
3374 vnc_parse(optarg);
3375 display_remote++;
3376 break;
3377 #endif
3378 case QEMU_OPTION_no_reboot:
3379 olist = qemu_find_opts("action");
3380 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3381 break;
3382 case QEMU_OPTION_no_shutdown:
3383 olist = qemu_find_opts("action");
3384 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3385 break;
3386 case QEMU_OPTION_uuid:
3387 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3388 error_report("failed to parse UUID string: wrong format");
3389 exit(1);
3390 }
3391 qemu_uuid_set = true;
3392 break;
3393 case QEMU_OPTION_option_rom:
3394 if (nb_option_roms >= MAX_OPTION_ROMS) {
3395 error_report("too many option ROMs");
3396 exit(1);
3397 }
3398 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3399 optarg, true);
3400 if (!opts) {
3401 exit(1);
3402 }
3403 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3404 option_rom[nb_option_roms].bootindex =
3405 qemu_opt_get_number(opts, "bootindex", -1);
3406 if (!option_rom[nb_option_roms].name) {
3407 error_report("Option ROM file is not specified");
3408 exit(1);
3409 }
3410 nb_option_roms++;
3411 break;
3412 case QEMU_OPTION_semihosting:
3413 qemu_semihosting_enable();
3414 break;
3415 case QEMU_OPTION_semihosting_config:
3416 if (qemu_semihosting_config_options(optarg) != 0) {
3417 exit(1);
3418 }
3419 break;
3420 case QEMU_OPTION_name:
3421 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3422 optarg, true);
3423 if (!opts) {
3424 exit(1);
3425 }
3426 /* Capture guest name if -msg guest-name is used later */
3427 error_guest_name = qemu_opt_get(opts, "guest");
3428 break;
3429 case QEMU_OPTION_prom_env:
3430 if (nb_prom_envs >= MAX_PROM_ENVS) {
3431 error_report("too many prom variables");
3432 exit(1);
3433 }
3434 prom_envs[nb_prom_envs] = optarg;
3435 nb_prom_envs++;
3436 break;
3437 case QEMU_OPTION_old_param:
3438 old_param = 1;
3439 break;
3440 case QEMU_OPTION_rtc:
3441 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3442 false);
3443 if (!opts) {
3444 exit(1);
3445 }
3446 break;
3447 case QEMU_OPTION_icount:
3448 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3449 optarg, true);
3450 if (!icount_opts) {
3451 exit(1);
3452 }
3453 break;
3454 case QEMU_OPTION_incoming:
3455 if (!incoming) {
3456 runstate_set(RUN_STATE_INMIGRATE);
3457 }
3458 incoming = optarg;
3459 break;
3460 case QEMU_OPTION_only_migratable:
3461 only_migratable = 1;
3462 break;
3463 case QEMU_OPTION_nodefaults:
3464 has_defaults = 0;
3465 break;
3466 case QEMU_OPTION_xen_domid:
3467 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3468 error_report("Option not supported for this target");
3469 exit(1);
3470 }
3471 xen_domid = atoi(optarg);
3472 break;
3473 case QEMU_OPTION_xen_attach:
3474 if (!(accel_find("xen"))) {
3475 error_report("Option not supported for this target");
3476 exit(1);
3477 }
3478 xen_mode = XEN_ATTACH;
3479 break;
3480 case QEMU_OPTION_xen_domid_restrict:
3481 if (!(accel_find("xen"))) {
3482 error_report("Option not supported for this target");
3483 exit(1);
3484 }
3485 xen_domid_restrict = true;
3486 break;
3487 case QEMU_OPTION_trace:
3488 trace_opt_parse(optarg);
3489 break;
3490 case QEMU_OPTION_plugin:
3491 qemu_plugin_opt_parse(optarg, &plugin_list);
3492 break;
3493 case QEMU_OPTION_readconfig:
3494 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3495 break;
3496 #ifdef CONFIG_SPICE
3497 case QEMU_OPTION_spice:
3498 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false);
3499 if (!opts) {
3500 exit(1);
3501 }
3502 display_remote++;
3503 break;
3504 #endif
3505 case QEMU_OPTION_qtest:
3506 qtest_chrdev = optarg;
3507 break;
3508 case QEMU_OPTION_qtest_log:
3509 qtest_log = optarg;
3510 break;
3511 case QEMU_OPTION_sandbox:
3512 olist = qemu_find_opts("sandbox");
3513 if (!olist) {
3514 #ifndef CONFIG_SECCOMP
3515 error_report("-sandbox support is not enabled "
3516 "in this QEMU binary");
3517 #endif
3518 exit(1);
3519 }
3520
3521 opts = qemu_opts_parse_noisily(olist, optarg, true);
3522 if (!opts) {
3523 exit(1);
3524 }
3525 break;
3526 case QEMU_OPTION_add_fd:
3527 #ifndef _WIN32
3528 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3529 optarg, false);
3530 if (!opts) {
3531 exit(1);
3532 }
3533 #else
3534 error_report("File descriptor passing is disabled on this "
3535 "platform");
3536 exit(1);
3537 #endif
3538 break;
3539 case QEMU_OPTION_object:
3540 object_option_parse(optarg);
3541 break;
3542 case QEMU_OPTION_overcommit:
3543 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3544 optarg, false);
3545 if (!opts) {
3546 exit(1);
3547 }
3548 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3549 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3550 break;
3551 case QEMU_OPTION_compat:
3552 {
3553 CompatPolicy *opts_policy;
3554 Visitor *v;
3555
3556 v = qobject_input_visitor_new_str(optarg, NULL,
3557 &error_fatal);
3558
3559 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3560 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3561
3562 qapi_free_CompatPolicy(opts_policy);
3563 visit_free(v);
3564 break;
3565 }
3566 case QEMU_OPTION_msg:
3567 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3568 false);
3569 if (!opts) {
3570 exit(1);
3571 }
3572 configure_msg(opts);
3573 break;
3574 case QEMU_OPTION_dump_vmstate:
3575 if (vmstate_dump_file) {
3576 error_report("only one '-dump-vmstate' "
3577 "option may be given");
3578 exit(1);
3579 }
3580 vmstate_dump_file = fopen(optarg, "w");
3581 if (vmstate_dump_file == NULL) {
3582 error_report("open %s: %s", optarg, strerror(errno));
3583 exit(1);
3584 }
3585 break;
3586 case QEMU_OPTION_enable_sync_profile:
3587 qsp_enable();
3588 break;
3589 case QEMU_OPTION_nouserconfig:
3590 /* Nothing to be parsed here. Especially, do not error out below. */
3591 break;
3592 #if defined(CONFIG_POSIX)
3593 case QEMU_OPTION_runas:
3594 warn_report("-runas is deprecated, use '-run-with user=...' instead");
3595 if (!os_set_runas(optarg)) {
3596 error_report("User \"%s\" doesn't exist"
3597 " (and is not <uid>:<gid>)",
3598 optarg);
3599 exit(1);
3600 }
3601 break;
3602 case QEMU_OPTION_daemonize:
3603 os_set_daemonize(true);
3604 break;
3605 case QEMU_OPTION_run_with: {
3606 const char *str;
3607 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3608 optarg, false);
3609 if (!opts) {
3610 exit(1);
3611 }
3612 #if defined(CONFIG_LINUX)
3613 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3614 init_async_teardown();
3615 }
3616 #endif
3617 str = qemu_opt_get(opts, "chroot");
3618 if (str) {
3619 os_set_chroot(str);
3620 }
3621 str = qemu_opt_get(opts, "user");
3622 if (str) {
3623 if (!os_set_runas(str)) {
3624 error_report("User \"%s\" doesn't exist"
3625 " (and is not <uid>:<gid>)",
3626 optarg);
3627 exit(1);
3628 }
3629 }
3630
3631 break;
3632 }
3633 #endif /* CONFIG_POSIX */
3634
3635 default:
3636 error_report("Option not supported in this build");
3637 exit(1);
3638 }
3639 }
3640 }
3641 /*
3642 * Clear error location left behind by the loop.
3643 * Best done right after the loop. Do not insert code here!
3644 */
3645 loc_set_none();
3646
3647 qemu_validate_options(machine_opts_dict);
3648 qemu_process_sugar_options();
3649
3650 /*
3651 * These options affect everything else and should be processed
3652 * before daemonizing.
3653 */
3654 qemu_process_early_options();
3655
3656 qemu_process_help_options();
3657 qemu_maybe_daemonize(pid_file);
3658
3659 /*
3660 * The trace backend must be initialized after daemonizing.
3661 * trace_init_backends() will call st_init(), which will create the
3662 * trace thread in the parent, and also register st_flush_trace_buffer()
3663 * in atexit(). This function will force the parent to wait for the
3664 * writeout thread to finish, which will not occur, and the parent
3665 * process will be left in the host.
3666 */
3667 if (!trace_init_backends()) {
3668 exit(1);
3669 }
3670 trace_init_file();
3671
3672 qemu_init_main_loop(&error_fatal);
3673 cpu_timers_init();
3674
3675 user_register_global_props();
3676 replay_configure(icount_opts);
3677
3678 configure_rtc(qemu_find_opts_singleton("rtc"));
3679
3680 /* Transfer QemuOpts options into machine options */
3681 parse_memory_options();
3682
3683 qemu_create_machine(machine_opts_dict);
3684
3685 suspend_mux_open();
3686
3687 qemu_disable_default_devices();
3688 qemu_setup_display();
3689 qemu_create_default_devices();
3690 qemu_create_early_backends();
3691
3692 qemu_apply_legacy_machine_options(machine_opts_dict);
3693 qemu_apply_machine_options(machine_opts_dict);
3694 qobject_unref(machine_opts_dict);
3695 phase_advance(PHASE_MACHINE_CREATED);
3696
3697 /*
3698 * Note: uses machine properties such as kernel-irqchip, must run
3699 * after qemu_apply_machine_options.
3700 */
3701 configure_accelerators(argv[0]);
3702 phase_advance(PHASE_ACCEL_CREATED);
3703
3704 /*
3705 * Beware, QOM objects created before this point miss global and
3706 * compat properties.
3707 *
3708 * Global properties get set up by qdev_prop_register_global(),
3709 * called from user_register_global_props(), and certain option
3710 * desugaring. Also in CPU feature desugaring (buried in
3711 * parse_cpu_option()), which happens below this point, but may
3712 * only target the CPU type, which can only be created after
3713 * parse_cpu_option() returned the type.
3714 *
3715 * Machine compat properties: object_set_machine_compat_props().
3716 * Accelerator compat props: object_set_accelerator_compat_props(),
3717 * called from do_configure_accelerator().
3718 */
3719
3720 machine_class = MACHINE_GET_CLASS(current_machine);
3721 if (!qtest_enabled() && machine_class->deprecation_reason) {
3722 warn_report("Machine type '%s' is deprecated: %s",
3723 machine_class->name, machine_class->deprecation_reason);
3724 }
3725
3726 /*
3727 * Create backends before creating migration objects, so that it can
3728 * check against compatibilities on the backend memories (e.g. postcopy
3729 * over memory-backend-file objects).
3730 */
3731 qemu_create_late_backends();
3732 phase_advance(PHASE_LATE_BACKENDS_CREATED);
3733
3734 /*
3735 * Note: creates a QOM object, must run only after global and
3736 * compat properties have been set up.
3737 */
3738 migration_object_init();
3739
3740 /* parse features once if machine provides default cpu_type */
3741 current_machine->cpu_type = machine_class_default_cpu_type(machine_class);
3742 if (cpu_option) {
3743 current_machine->cpu_type = parse_cpu_option(cpu_option);
3744 }
3745 /* NB: for machine none cpu_type could STILL be NULL here! */
3746
3747 qemu_resolve_machine_memdev();
3748 parse_numa_opts(current_machine);
3749
3750 if (vmstate_dump_file) {
3751 /* dump and exit */
3752 module_load_qom_all();
3753 dump_vmstate_json_to_file(vmstate_dump_file);
3754 exit(0);
3755 }
3756
3757 if (!preconfig_requested) {
3758 qmp_x_exit_preconfig(&error_fatal);
3759 }
3760 qemu_init_displays();
3761 accel_setup_post(current_machine);
3762 os_setup_post();
3763 resume_mux_open();
3764 }
armbru's QEMU hackery