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vl: move display early init before default devices
[mirror_qemu.git] / system / vl.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu/help-texts.h"
27 #include "qemu/datadir.h"
28 #include "qemu/units.h"
29 #include "exec/cpu-common.h"
30 #include "exec/page-vary.h"
31 #include "hw/qdev-properties.h"
32 #include "qapi/compat-policy.h"
33 #include "qapi/error.h"
34 #include "qapi/qmp/qdict.h"
35 #include "qapi/qmp/qstring.h"
36 #include "qapi/qmp/qjson.h"
37 #include "qemu-version.h"
38 #include "qemu/cutils.h"
39 #include "qemu/help_option.h"
40 #include "qemu/hw-version.h"
41 #include "qemu/uuid.h"
42 #include "sysemu/reset.h"
43 #include "sysemu/runstate.h"
44 #include "sysemu/runstate-action.h"
45 #include "sysemu/seccomp.h"
46 #include "sysemu/tcg.h"
47 #include "sysemu/xen.h"
48
49 #include "qemu/error-report.h"
50 #include "qemu/sockets.h"
51 #include "qemu/accel.h"
52 #include "qemu/async-teardown.h"
53 #include "hw/usb.h"
54 #include "hw/isa/isa.h"
55 #include "hw/scsi/scsi.h"
56 #include "hw/display/vga.h"
57 #include "hw/firmware/smbios.h"
58 #include "hw/acpi/acpi.h"
59 #include "hw/xen/xen.h"
60 #include "hw/loader.h"
61 #include "monitor/qdev.h"
62 #include "net/net.h"
63 #include "net/slirp.h"
64 #include "monitor/monitor.h"
65 #include "ui/console.h"
66 #include "ui/input.h"
67 #include "sysemu/sysemu.h"
68 #include "sysemu/numa.h"
69 #include "sysemu/hostmem.h"
70 #include "exec/gdbstub.h"
71 #include "qemu/timer.h"
72 #include "chardev/char.h"
73 #include "qemu/bitmap.h"
74 #include "qemu/log.h"
75 #include "sysemu/blockdev.h"
76 #include "hw/block/block.h"
77 #include "hw/i386/x86.h"
78 #include "hw/i386/pc.h"
79 #include "migration/misc.h"
80 #include "migration/snapshot.h"
81 #include "sysemu/tpm.h"
82 #include "sysemu/dma.h"
83 #include "hw/audio/soundhw.h"
84 #include "audio/audio.h"
85 #include "sysemu/cpus.h"
86 #include "sysemu/cpu-timers.h"
87 #include "migration/colo.h"
88 #include "migration/postcopy-ram.h"
89 #include "sysemu/kvm.h"
90 #include "qapi/qobject-input-visitor.h"
91 #include "qemu/option.h"
92 #include "qemu/config-file.h"
93 #include "qemu/main-loop.h"
94 #ifdef CONFIG_VIRTFS
95 #include "fsdev/qemu-fsdev.h"
96 #endif
97 #include "sysemu/qtest.h"
98 #ifdef CONFIG_TCG
99 #include "accel/tcg/perf.h"
100 #endif
101
102 #include "disas/disas.h"
103
104 #include "trace.h"
105 #include "trace/control.h"
106 #include "qemu/plugin.h"
107 #include "qemu/queue.h"
108 #include "sysemu/arch_init.h"
109 #include "exec/confidential-guest-support.h"
110
111 #include "ui/qemu-spice.h"
112 #include "qapi/string-input-visitor.h"
113 #include "qapi/opts-visitor.h"
114 #include "qapi/clone-visitor.h"
115 #include "qom/object_interfaces.h"
116 #include "semihosting/semihost.h"
117 #include "crypto/init.h"
118 #include "sysemu/replay.h"
119 #include "qapi/qapi-events-run-state.h"
120 #include "qapi/qapi-types-audio.h"
121 #include "qapi/qapi-visit-audio.h"
122 #include "qapi/qapi-visit-block-core.h"
123 #include "qapi/qapi-visit-compat.h"
124 #include "qapi/qapi-visit-machine.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-migration.h"
128 #include "qapi/qapi-commands-misc.h"
129 #include "qapi/qapi-visit-qom.h"
130 #include "qapi/qapi-commands-ui.h"
131 #include "block/qdict.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134 #include "qemu/guest-random.h"
135 #include "qemu/keyval.h"
136
137 #define MAX_VIRTIO_CONSOLES 1
138
139 typedef struct BlockdevOptionsQueueEntry {
140 BlockdevOptions *bdo;
141 Location loc;
142 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
143 } BlockdevOptionsQueueEntry;
144
145 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
146
147 typedef struct ObjectOption {
148 ObjectOptions *opts;
149 QTAILQ_ENTRY(ObjectOption) next;
150 } ObjectOption;
151
152 typedef struct DeviceOption {
153 QDict *opts;
154 Location loc;
155 QTAILQ_ENTRY(DeviceOption) next;
156 } DeviceOption;
157
158 static const char *cpu_option;
159 static const char *mem_path;
160 static const char *incoming;
161 static const char *loadvm;
162 static const char *accelerators;
163 static bool have_custom_ram_size;
164 static const char *ram_memdev_id;
165 static QDict *machine_opts_dict;
166 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
167 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
168 static int display_remote;
169 static int snapshot;
170 static bool preconfig_requested;
171 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
172 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
173 static bool nographic = false;
174 static int mem_prealloc; /* force preallocation of physical target memory */
175 static const char *vga_model = NULL;
176 static DisplayOptions dpy;
177 static int num_serial_hds;
178 static Chardev **serial_hds;
179 static const char *log_mask;
180 static const char *log_file;
181 static bool list_data_dirs;
182 static const char *qtest_chrdev;
183 static const char *qtest_log;
184 static bool opt_one_insn_per_tb;
185
186 static int has_defaults = 1;
187 static int default_audio = 1;
188 static int default_serial = 1;
189 static int default_parallel = 1;
190 static int default_monitor = 1;
191 static int default_floppy = 1;
192 static int default_cdrom = 1;
193 static int default_sdcard = 1;
194 static int default_vga = 1;
195 static int default_net = 1;
196
197 static struct {
198 const char *driver;
199 int *flag;
200 } default_list[] = {
201 { .driver = "isa-serial", .flag = &default_serial },
202 { .driver = "isa-parallel", .flag = &default_parallel },
203 { .driver = "isa-fdc", .flag = &default_floppy },
204 { .driver = "floppy", .flag = &default_floppy },
205 { .driver = "ide-cd", .flag = &default_cdrom },
206 { .driver = "ide-hd", .flag = &default_cdrom },
207 { .driver = "scsi-cd", .flag = &default_cdrom },
208 { .driver = "scsi-hd", .flag = &default_cdrom },
209 { .driver = "VGA", .flag = &default_vga },
210 { .driver = "isa-vga", .flag = &default_vga },
211 { .driver = "cirrus-vga", .flag = &default_vga },
212 { .driver = "isa-cirrus-vga", .flag = &default_vga },
213 { .driver = "vmware-svga", .flag = &default_vga },
214 { .driver = "qxl-vga", .flag = &default_vga },
215 { .driver = "virtio-vga", .flag = &default_vga },
216 { .driver = "ati-vga", .flag = &default_vga },
217 { .driver = "vhost-user-vga", .flag = &default_vga },
218 { .driver = "virtio-vga-gl", .flag = &default_vga },
219 { .driver = "virtio-vga-rutabaga", .flag = &default_vga },
220 };
221
222 static QemuOptsList qemu_rtc_opts = {
223 .name = "rtc",
224 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
225 .merge_lists = true,
226 .desc = {
227 {
228 .name = "base",
229 .type = QEMU_OPT_STRING,
230 },{
231 .name = "clock",
232 .type = QEMU_OPT_STRING,
233 },{
234 .name = "driftfix",
235 .type = QEMU_OPT_STRING,
236 },
237 { /* end of list */ }
238 },
239 };
240
241 static QemuOptsList qemu_option_rom_opts = {
242 .name = "option-rom",
243 .implied_opt_name = "romfile",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
245 .desc = {
246 {
247 .name = "bootindex",
248 .type = QEMU_OPT_NUMBER,
249 }, {
250 .name = "romfile",
251 .type = QEMU_OPT_STRING,
252 },
253 { /* end of list */ }
254 },
255 };
256
257 static QemuOptsList qemu_accel_opts = {
258 .name = "accel",
259 .implied_opt_name = "accel",
260 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
261 .desc = {
262 /*
263 * no elements => accept any
264 * sanity checking will happen later
265 * when setting accelerator properties
266 */
267 { }
268 },
269 };
270
271 static QemuOptsList qemu_boot_opts = {
272 .name = "boot-opts",
273 .implied_opt_name = "order",
274 .merge_lists = true,
275 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
276 .desc = {
277 {
278 .name = "order",
279 .type = QEMU_OPT_STRING,
280 }, {
281 .name = "once",
282 .type = QEMU_OPT_STRING,
283 }, {
284 .name = "menu",
285 .type = QEMU_OPT_BOOL,
286 }, {
287 .name = "splash",
288 .type = QEMU_OPT_STRING,
289 }, {
290 .name = "splash-time",
291 .type = QEMU_OPT_NUMBER,
292 }, {
293 .name = "reboot-timeout",
294 .type = QEMU_OPT_NUMBER,
295 }, {
296 .name = "strict",
297 .type = QEMU_OPT_BOOL,
298 },
299 { /*End of list */ }
300 },
301 };
302
303 static QemuOptsList qemu_add_fd_opts = {
304 .name = "add-fd",
305 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
306 .desc = {
307 {
308 .name = "fd",
309 .type = QEMU_OPT_NUMBER,
310 .help = "file descriptor of which a duplicate is added to fd set",
311 },{
312 .name = "set",
313 .type = QEMU_OPT_NUMBER,
314 .help = "ID of the fd set to add fd to",
315 },{
316 .name = "opaque",
317 .type = QEMU_OPT_STRING,
318 .help = "free-form string used to describe fd",
319 },
320 { /* end of list */ }
321 },
322 };
323
324 static QemuOptsList qemu_object_opts = {
325 .name = "object",
326 .implied_opt_name = "qom-type",
327 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
328 .desc = {
329 { }
330 },
331 };
332
333 static QemuOptsList qemu_tpmdev_opts = {
334 .name = "tpmdev",
335 .implied_opt_name = "type",
336 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
337 .desc = {
338 /* options are defined in the TPM backends */
339 { /* end of list */ }
340 },
341 };
342
343 static QemuOptsList qemu_overcommit_opts = {
344 .name = "overcommit",
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
346 .desc = {
347 {
348 .name = "mem-lock",
349 .type = QEMU_OPT_BOOL,
350 },
351 {
352 .name = "cpu-pm",
353 .type = QEMU_OPT_BOOL,
354 },
355 { /* end of list */ }
356 },
357 };
358
359 static QemuOptsList qemu_msg_opts = {
360 .name = "msg",
361 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
362 .desc = {
363 {
364 .name = "timestamp",
365 .type = QEMU_OPT_BOOL,
366 },
367 {
368 .name = "guest-name",
369 .type = QEMU_OPT_BOOL,
370 .help = "Prepends guest name for error messages but only if "
371 "-name guest is set otherwise option is ignored\n",
372 },
373 { /* end of list */ }
374 },
375 };
376
377 static QemuOptsList qemu_name_opts = {
378 .name = "name",
379 .implied_opt_name = "guest",
380 .merge_lists = true,
381 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
382 .desc = {
383 {
384 .name = "guest",
385 .type = QEMU_OPT_STRING,
386 .help = "Sets the name of the guest.\n"
387 "This name will be displayed in the SDL window caption.\n"
388 "The name will also be used for the VNC server",
389 }, {
390 .name = "process",
391 .type = QEMU_OPT_STRING,
392 .help = "Sets the name of the QEMU process, as shown in top etc",
393 }, {
394 .name = "debug-threads",
395 .type = QEMU_OPT_BOOL,
396 .help = "When enabled, name the individual threads; defaults off.\n"
397 "NOTE: The thread names are for debugging and not a\n"
398 "stable API.",
399 },
400 { /* End of list */ }
401 },
402 };
403
404 static QemuOptsList qemu_mem_opts = {
405 .name = "memory",
406 .implied_opt_name = "size",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
408 .merge_lists = true,
409 .desc = {
410 {
411 .name = "size",
412 .type = QEMU_OPT_SIZE,
413 },
414 {
415 .name = "slots",
416 .type = QEMU_OPT_NUMBER,
417 },
418 {
419 .name = "maxmem",
420 .type = QEMU_OPT_SIZE,
421 },
422 { /* end of list */ }
423 },
424 };
425
426 static QemuOptsList qemu_icount_opts = {
427 .name = "icount",
428 .implied_opt_name = "shift",
429 .merge_lists = true,
430 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
431 .desc = {
432 {
433 .name = "shift",
434 .type = QEMU_OPT_STRING,
435 }, {
436 .name = "align",
437 .type = QEMU_OPT_BOOL,
438 }, {
439 .name = "sleep",
440 .type = QEMU_OPT_BOOL,
441 }, {
442 .name = "rr",
443 .type = QEMU_OPT_STRING,
444 }, {
445 .name = "rrfile",
446 .type = QEMU_OPT_STRING,
447 }, {
448 .name = "rrsnapshot",
449 .type = QEMU_OPT_STRING,
450 },
451 { /* end of list */ }
452 },
453 };
454
455 static QemuOptsList qemu_fw_cfg_opts = {
456 .name = "fw_cfg",
457 .implied_opt_name = "name",
458 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
459 .desc = {
460 {
461 .name = "name",
462 .type = QEMU_OPT_STRING,
463 .help = "Sets the fw_cfg name of the blob to be inserted",
464 }, {
465 .name = "file",
466 .type = QEMU_OPT_STRING,
467 .help = "Sets the name of the file from which "
468 "the fw_cfg blob will be loaded",
469 }, {
470 .name = "string",
471 .type = QEMU_OPT_STRING,
472 .help = "Sets content of the blob to be inserted from a string",
473 }, {
474 .name = "gen_id",
475 .type = QEMU_OPT_STRING,
476 .help = "Sets id of the object generating the fw_cfg blob "
477 "to be inserted",
478 },
479 { /* end of list */ }
480 },
481 };
482
483 static QemuOptsList qemu_action_opts = {
484 .name = "action",
485 .merge_lists = true,
486 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
487 .desc = {
488 {
489 .name = "shutdown",
490 .type = QEMU_OPT_STRING,
491 },{
492 .name = "reboot",
493 .type = QEMU_OPT_STRING,
494 },{
495 .name = "panic",
496 .type = QEMU_OPT_STRING,
497 },{
498 .name = "watchdog",
499 .type = QEMU_OPT_STRING,
500 },
501 { /* end of list */ }
502 },
503 };
504
505 const char *qemu_get_vm_name(void)
506 {
507 return qemu_name;
508 }
509
510 static void default_driver_disable(const char *driver)
511 {
512 int i;
513
514 if (!driver) {
515 return;
516 }
517
518 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
519 if (strcmp(default_list[i].driver, driver) != 0)
520 continue;
521 *(default_list[i].flag) = 0;
522 }
523 }
524
525 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
526 {
527 const char *driver = qemu_opt_get(opts, "driver");
528
529 default_driver_disable(driver);
530 return 0;
531 }
532
533 static void default_driver_check_json(void)
534 {
535 DeviceOption *opt;
536
537 QTAILQ_FOREACH(opt, &device_opts, next) {
538 const char *driver = qdict_get_try_str(opt->opts, "driver");
539 default_driver_disable(driver);
540 }
541 }
542
543 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
544 {
545 const char *proc_name;
546
547 if (qemu_opt_get(opts, "debug-threads")) {
548 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
549 }
550 qemu_name = qemu_opt_get(opts, "guest");
551
552 proc_name = qemu_opt_get(opts, "process");
553 if (proc_name) {
554 os_set_proc_name(proc_name);
555 }
556
557 return 0;
558 }
559
560 bool defaults_enabled(void)
561 {
562 return has_defaults;
563 }
564
565 #ifndef _WIN32
566 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
567 {
568 int fd, dupfd, flags;
569 int64_t fdset_id;
570 const char *fd_opaque = NULL;
571 AddfdInfo *fdinfo;
572
573 fd = qemu_opt_get_number(opts, "fd", -1);
574 fdset_id = qemu_opt_get_number(opts, "set", -1);
575 fd_opaque = qemu_opt_get(opts, "opaque");
576
577 if (fd < 0) {
578 error_setg(errp, "fd option is required and must be non-negative");
579 return -1;
580 }
581
582 if (fd <= STDERR_FILENO) {
583 error_setg(errp, "fd cannot be a standard I/O stream");
584 return -1;
585 }
586
587 /*
588 * All fds inherited across exec() necessarily have FD_CLOEXEC
589 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
590 */
591 flags = fcntl(fd, F_GETFD);
592 if (flags == -1 || (flags & FD_CLOEXEC)) {
593 error_setg(errp, "fd is not valid or already in use");
594 return -1;
595 }
596
597 if (fdset_id < 0) {
598 error_setg(errp, "set option is required and must be non-negative");
599 return -1;
600 }
601
602 #ifdef F_DUPFD_CLOEXEC
603 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
604 #else
605 dupfd = dup(fd);
606 if (dupfd != -1) {
607 qemu_set_cloexec(dupfd);
608 }
609 #endif
610 if (dupfd == -1) {
611 error_setg(errp, "error duplicating fd: %s", strerror(errno));
612 return -1;
613 }
614
615 /* add the duplicate fd, and optionally the opaque string, to the fd set */
616 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque,
617 &error_abort);
618 g_free(fdinfo);
619
620 return 0;
621 }
622
623 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
624 {
625 int fd;
626
627 fd = qemu_opt_get_number(opts, "fd", -1);
628 close(fd);
629
630 return 0;
631 }
632 #endif
633
634 /***********************************************************/
635 /* QEMU Block devices */
636
637 #define HD_OPTS "media=disk"
638 #define CDROM_OPTS "media=cdrom"
639 #define FD_OPTS ""
640 #define PFLASH_OPTS ""
641 #define MTD_OPTS ""
642 #define SD_OPTS ""
643
644 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
645 {
646 BlockInterfaceType *block_default_type = opaque;
647
648 return drive_new(opts, *block_default_type, errp) == NULL;
649 }
650
651 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
652 {
653 if (qemu_opt_get(opts, "snapshot") == NULL) {
654 qemu_opt_set(opts, "snapshot", "on", &error_abort);
655 }
656 return 0;
657 }
658
659 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
660 int index, const char *optstr)
661 {
662 QemuOpts *opts;
663 DriveInfo *dinfo;
664
665 if (!enable || drive_get_by_index(type, index)) {
666 return;
667 }
668
669 opts = drive_add(type, index, NULL, optstr);
670 if (snapshot) {
671 drive_enable_snapshot(NULL, opts, NULL);
672 }
673
674 dinfo = drive_new(opts, type, &error_abort);
675 dinfo->is_default = true;
676
677 }
678
679 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
680 MachineClass *machine_class, int snapshot)
681 {
682 /*
683 * If the currently selected machine wishes to override the
684 * units-per-bus property of its default HBA interface type, do so
685 * now.
686 */
687 if (machine_class->units_per_default_bus) {
688 override_max_devs(machine_class->block_default_type,
689 machine_class->units_per_default_bus);
690 }
691
692 /* open the virtual block devices */
693 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
694 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
695
696 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
697 loc_push_restore(&bdo->loc);
698 qmp_blockdev_add(bdo->bdo, &error_fatal);
699 loc_pop(&bdo->loc);
700 qapi_free_BlockdevOptions(bdo->bdo);
701 g_free(bdo);
702 }
703 if (snapshot) {
704 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
705 NULL, NULL);
706 }
707 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
708 &machine_class->block_default_type, &error_fatal)) {
709 /* We printed help */
710 exit(0);
711 }
712
713 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
714 CDROM_OPTS);
715 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
716 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
717
718 }
719
720 static QemuOptsList qemu_smp_opts = {
721 .name = "smp-opts",
722 .implied_opt_name = "cpus",
723 .merge_lists = true,
724 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
725 .desc = {
726 {
727 .name = "cpus",
728 .type = QEMU_OPT_NUMBER,
729 }, {
730 .name = "drawers",
731 .type = QEMU_OPT_NUMBER,
732 }, {
733 .name = "books",
734 .type = QEMU_OPT_NUMBER,
735 }, {
736 .name = "sockets",
737 .type = QEMU_OPT_NUMBER,
738 }, {
739 .name = "dies",
740 .type = QEMU_OPT_NUMBER,
741 }, {
742 .name = "clusters",
743 .type = QEMU_OPT_NUMBER,
744 }, {
745 .name = "cores",
746 .type = QEMU_OPT_NUMBER,
747 }, {
748 .name = "threads",
749 .type = QEMU_OPT_NUMBER,
750 }, {
751 .name = "maxcpus",
752 .type = QEMU_OPT_NUMBER,
753 },
754 { /*End of list */ }
755 },
756 };
757
758 #if defined(CONFIG_POSIX)
759 static QemuOptsList qemu_run_with_opts = {
760 .name = "run-with",
761 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
762 .desc = {
763 #if defined(CONFIG_LINUX)
764 {
765 .name = "async-teardown",
766 .type = QEMU_OPT_BOOL,
767 },
768 #endif
769 {
770 .name = "chroot",
771 .type = QEMU_OPT_STRING,
772 },
773 { /* end of list */ }
774 },
775 };
776
777 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
778
779 #else
780
781 #define qemu_add_run_with_opts()
782
783 #endif /* CONFIG_POSIX */
784
785 static void realtime_init(void)
786 {
787 if (enable_mlock) {
788 if (os_mlock() < 0) {
789 error_report("locking memory failed");
790 exit(1);
791 }
792 }
793 }
794
795
796 static void configure_msg(QemuOpts *opts)
797 {
798 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
799 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
800 }
801
802
803 /***********************************************************/
804 /* USB devices */
805
806 static int usb_device_add(const char *devname)
807 {
808 USBDevice *dev = NULL;
809
810 if (!machine_usb(current_machine)) {
811 return -1;
812 }
813
814 dev = usbdevice_create(devname);
815 if (!dev)
816 return -1;
817
818 return 0;
819 }
820
821 static int usb_parse(const char *cmdline)
822 {
823 int r;
824 r = usb_device_add(cmdline);
825 if (r < 0) {
826 error_report("could not add USB device '%s'", cmdline);
827 }
828 return r;
829 }
830
831 /***********************************************************/
832 /* machine registration */
833
834 static MachineClass *find_machine(const char *name, GSList *machines)
835 {
836 GSList *el;
837
838 for (el = machines; el; el = el->next) {
839 MachineClass *mc = el->data;
840
841 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
842 return mc;
843 }
844 }
845
846 return NULL;
847 }
848
849 static MachineClass *find_default_machine(GSList *machines)
850 {
851 GSList *el;
852 MachineClass *default_machineclass = NULL;
853
854 for (el = machines; el; el = el->next) {
855 MachineClass *mc = el->data;
856
857 if (mc->is_default) {
858 assert(default_machineclass == NULL && "Multiple default machines");
859 default_machineclass = mc;
860 }
861 }
862
863 return default_machineclass;
864 }
865
866 static void version(void)
867 {
868 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
869 QEMU_COPYRIGHT "\n");
870 }
871
872 static void help(int exitcode)
873 {
874 version();
875 printf("usage: %s [options] [disk_image]\n\n"
876 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
877 g_get_prgname());
878
879 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
880 if ((arch_mask) & arch_type) \
881 fputs(opt_help, stdout);
882
883 #define ARCHHEADING(text, arch_mask) \
884 if ((arch_mask) & arch_type) \
885 puts(stringify(text));
886
887 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
888
889 #include "qemu-options.def"
890
891 printf("\nDuring emulation, the following keys are useful:\n"
892 "ctrl-alt-f toggle full screen\n"
893 "ctrl-alt-n switch to virtual console 'n'\n"
894 "ctrl-alt toggle mouse and keyboard grab\n"
895 "\n"
896 "When using -nographic, press 'ctrl-a h' to get some help.\n"
897 "\n"
898 QEMU_HELP_BOTTOM "\n");
899
900 exit(exitcode);
901 }
902
903 enum {
904
905 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
906 opt_enum,
907 #define DEFHEADING(text)
908 #define ARCHHEADING(text, arch_mask)
909
910 #include "qemu-options.def"
911 };
912
913 #define HAS_ARG 0x0001
914
915 typedef struct QEMUOption {
916 const char *name;
917 int flags;
918 int index;
919 uint32_t arch_mask;
920 } QEMUOption;
921
922 static const QEMUOption qemu_options[] = {
923 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
924
925 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
926 { option, opt_arg, opt_enum, arch_mask },
927 #define DEFHEADING(text)
928 #define ARCHHEADING(text, arch_mask)
929
930 #include "qemu-options.def"
931 { /* end of list */ }
932 };
933
934 typedef struct VGAInterfaceInfo {
935 const char *opt_name; /* option name */
936 const char *name; /* human-readable name */
937 /* Class names indicating that support is available.
938 * If no class is specified, the interface is always available */
939 const char *class_names[2];
940 } VGAInterfaceInfo;
941
942 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
943 [VGA_NONE] = {
944 .opt_name = "none",
945 .name = "no graphic card",
946 },
947 [VGA_STD] = {
948 .opt_name = "std",
949 .name = "standard VGA",
950 .class_names = { "VGA", "isa-vga" },
951 },
952 [VGA_CIRRUS] = {
953 .opt_name = "cirrus",
954 .name = "Cirrus VGA",
955 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
956 },
957 [VGA_VMWARE] = {
958 .opt_name = "vmware",
959 .name = "VMWare SVGA",
960 .class_names = { "vmware-svga" },
961 },
962 [VGA_VIRTIO] = {
963 .opt_name = "virtio",
964 .name = "Virtio VGA",
965 .class_names = { "virtio-vga" },
966 },
967 [VGA_QXL] = {
968 .opt_name = "qxl",
969 .name = "QXL VGA",
970 .class_names = { "qxl-vga" },
971 },
972 [VGA_TCX] = {
973 .opt_name = "tcx",
974 .name = "TCX framebuffer",
975 .class_names = { "sun-tcx" },
976 },
977 [VGA_CG3] = {
978 .opt_name = "cg3",
979 .name = "CG3 framebuffer",
980 .class_names = { "cgthree" },
981 },
982 #ifdef CONFIG_XEN_BACKEND
983 [VGA_XENFB] = {
984 .opt_name = "xenfb",
985 .name = "Xen paravirtualized framebuffer",
986 },
987 #endif
988 };
989
990 static bool vga_interface_available(VGAInterfaceType t)
991 {
992 const VGAInterfaceInfo *ti = &vga_interfaces[t];
993
994 assert(t < VGA_TYPE_MAX);
995 return !ti->class_names[0] ||
996 module_object_class_by_name(ti->class_names[0]) ||
997 module_object_class_by_name(ti->class_names[1]);
998 }
999
1000 static const char *
1001 get_default_vga_model(const MachineClass *machine_class)
1002 {
1003 if (machine_class->default_display) {
1004 for (int t = 0; t < VGA_TYPE_MAX; t++) {
1005 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1006
1007 if (ti->opt_name && vga_interface_available(t) &&
1008 g_str_equal(ti->opt_name, machine_class->default_display)) {
1009 return machine_class->default_display;
1010 }
1011 }
1012
1013 warn_report_once("Default display '%s' is not available in this binary",
1014 machine_class->default_display);
1015 return NULL;
1016 } else if (vga_interface_available(VGA_CIRRUS)) {
1017 return "cirrus";
1018 } else if (vga_interface_available(VGA_STD)) {
1019 return "std";
1020 }
1021
1022 return NULL;
1023 }
1024
1025 static void select_vgahw(const MachineClass *machine_class, const char *p)
1026 {
1027 const char *opts;
1028 int t;
1029
1030 if (g_str_equal(p, "help")) {
1031 const char *def = get_default_vga_model(machine_class);
1032
1033 for (t = 0; t < VGA_TYPE_MAX; t++) {
1034 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1035
1036 if (vga_interface_available(t) && ti->opt_name) {
1037 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1038 (def && g_str_equal(ti->opt_name, def)) ?
1039 " (default)" : "");
1040 }
1041 }
1042 exit(0);
1043 }
1044
1045 assert(vga_interface_type == VGA_NONE);
1046 for (t = 0; t < VGA_TYPE_MAX; t++) {
1047 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1048 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1049 if (!vga_interface_available(t)) {
1050 error_report("%s not available", ti->name);
1051 exit(1);
1052 }
1053 vga_interface_type = t;
1054 break;
1055 }
1056 }
1057 if (t == VGA_TYPE_MAX) {
1058 invalid_vga:
1059 error_report("unknown vga type: %s", p);
1060 exit(1);
1061 }
1062 while (*opts) {
1063 const char *nextopt;
1064
1065 if (strstart(opts, ",retrace=", &nextopt)) {
1066 opts = nextopt;
1067 if (strstart(opts, "dumb", &nextopt))
1068 vga_retrace_method = VGA_RETRACE_DUMB;
1069 else if (strstart(opts, "precise", &nextopt))
1070 vga_retrace_method = VGA_RETRACE_PRECISE;
1071 else goto invalid_vga;
1072 } else goto invalid_vga;
1073 opts = nextopt;
1074 }
1075 }
1076
1077 static void parse_display_qapi(const char *str)
1078 {
1079 DisplayOptions *opts;
1080 Visitor *v;
1081
1082 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1083
1084 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1085 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1086
1087 qapi_free_DisplayOptions(opts);
1088 visit_free(v);
1089 }
1090
1091 DisplayOptions *qmp_query_display_options(Error **errp)
1092 {
1093 return QAPI_CLONE(DisplayOptions, &dpy);
1094 }
1095
1096 static void parse_display(const char *p)
1097 {
1098 if (is_help_option(p)) {
1099 qemu_display_help();
1100 exit(0);
1101 }
1102
1103 #ifdef CONFIG_VNC
1104 const char *opts;
1105
1106 if (strstart(p, "vnc", &opts)) {
1107 /*
1108 * vnc isn't a (local) DisplayType but a protocol for remote
1109 * display access.
1110 */
1111 if (*opts == '=') {
1112 vnc_parse(opts + 1);
1113 } else {
1114 error_report("VNC requires a display argument vnc=<display>");
1115 exit(1);
1116 }
1117 return;
1118 }
1119 #endif
1120
1121 parse_display_qapi(p);
1122 }
1123
1124 static inline bool nonempty_str(const char *str)
1125 {
1126 return str && *str;
1127 }
1128
1129 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1130 {
1131 gchar *buf;
1132 size_t size;
1133 const char *name, *file, *str, *gen_id;
1134 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1135
1136 if (fw_cfg == NULL) {
1137 error_setg(errp, "fw_cfg device not available");
1138 return -1;
1139 }
1140 name = qemu_opt_get(opts, "name");
1141 file = qemu_opt_get(opts, "file");
1142 str = qemu_opt_get(opts, "string");
1143 gen_id = qemu_opt_get(opts, "gen_id");
1144
1145 /* we need the name, and exactly one of: file, content string, gen_id */
1146 if (!nonempty_str(name) ||
1147 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1148 error_setg(errp, "name, plus exactly one of file,"
1149 " string and gen_id, are needed");
1150 return -1;
1151 }
1152 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1153 error_setg(errp, "name too long (max. %d char)",
1154 FW_CFG_MAX_FILE_PATH - 1);
1155 return -1;
1156 }
1157 if (nonempty_str(gen_id)) {
1158 /*
1159 * In this particular case where the content is populated
1160 * internally, the "etc/" namespace protection is relaxed,
1161 * so do not emit a warning.
1162 */
1163 } else if (strncmp(name, "opt/", 4) != 0) {
1164 warn_report("externally provided fw_cfg item names "
1165 "should be prefixed with \"opt/\"");
1166 }
1167 if (nonempty_str(str)) {
1168 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1169 buf = g_memdup(str, size);
1170 } else if (nonempty_str(gen_id)) {
1171 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1172 return -1;
1173 }
1174 return 0;
1175 } else {
1176 GError *err = NULL;
1177 if (!g_file_get_contents(file, &buf, &size, &err)) {
1178 error_setg(errp, "can't load %s: %s", file, err->message);
1179 g_error_free(err);
1180 return -1;
1181 }
1182 }
1183 /* For legacy, keep user files in a specific global order. */
1184 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1185 fw_cfg_add_file(fw_cfg, name, buf, size);
1186 fw_cfg_reset_order_override(fw_cfg);
1187 return 0;
1188 }
1189
1190 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1191 {
1192 return qdev_device_help(opts);
1193 }
1194
1195 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1196 {
1197 DeviceState *dev;
1198
1199 dev = qdev_device_add(opts, errp);
1200 if (!dev && *errp) {
1201 error_report_err(*errp);
1202 return -1;
1203 } else if (dev) {
1204 object_unref(OBJECT(dev));
1205 }
1206 return 0;
1207 }
1208
1209 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1210 {
1211 Error *local_err = NULL;
1212
1213 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1214 if (local_err) {
1215 error_propagate(errp, local_err);
1216 return -1;
1217 }
1218 exit(0);
1219 }
1220 return 0;
1221 }
1222
1223 #ifdef CONFIG_VIRTFS
1224 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1225 {
1226 return qemu_fsdev_add(opts, errp);
1227 }
1228 #endif
1229
1230 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1231 {
1232 return monitor_init_opts(opts, errp);
1233 }
1234
1235 static void monitor_parse(const char *str, const char *mode, bool pretty)
1236 {
1237 static int monitor_device_index = 0;
1238 QemuOpts *opts;
1239 const char *p;
1240 char label[32];
1241
1242 if (strstart(str, "chardev:", &p)) {
1243 snprintf(label, sizeof(label), "%s", p);
1244 } else {
1245 snprintf(label, sizeof(label), "compat_monitor%d",
1246 monitor_device_index);
1247 opts = qemu_chr_parse_compat(label, str, true);
1248 if (!opts) {
1249 error_report("parse error: %s", str);
1250 exit(1);
1251 }
1252 }
1253
1254 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1255 qemu_opt_set(opts, "mode", mode, &error_abort);
1256 qemu_opt_set(opts, "chardev", label, &error_abort);
1257 if (!strcmp(mode, "control")) {
1258 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1259 } else {
1260 assert(pretty == false);
1261 }
1262 monitor_device_index++;
1263 }
1264
1265 struct device_config {
1266 enum {
1267 DEV_USB, /* -usbdevice */
1268 DEV_SERIAL, /* -serial */
1269 DEV_PARALLEL, /* -parallel */
1270 DEV_DEBUGCON, /* -debugcon */
1271 DEV_GDB, /* -gdb, -s */
1272 DEV_SCLP, /* s390 sclp */
1273 } type;
1274 const char *cmdline;
1275 Location loc;
1276 QTAILQ_ENTRY(device_config) next;
1277 };
1278
1279 static QTAILQ_HEAD(, device_config) device_configs =
1280 QTAILQ_HEAD_INITIALIZER(device_configs);
1281
1282 static void add_device_config(int type, const char *cmdline)
1283 {
1284 struct device_config *conf;
1285
1286 conf = g_malloc0(sizeof(*conf));
1287 conf->type = type;
1288 conf->cmdline = cmdline;
1289 loc_save(&conf->loc);
1290 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1291 }
1292
1293 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1294 {
1295 struct device_config *conf;
1296 int rc;
1297
1298 QTAILQ_FOREACH(conf, &device_configs, next) {
1299 if (conf->type != type)
1300 continue;
1301 loc_push_restore(&conf->loc);
1302 rc = func(conf->cmdline);
1303 loc_pop(&conf->loc);
1304 if (rc) {
1305 return rc;
1306 }
1307 }
1308 return 0;
1309 }
1310
1311 static void qemu_disable_default_devices(void)
1312 {
1313 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1314
1315 default_driver_check_json();
1316 qemu_opts_foreach(qemu_find_opts("device"),
1317 default_driver_check, NULL, NULL);
1318 qemu_opts_foreach(qemu_find_opts("global"),
1319 default_driver_check, NULL, NULL);
1320
1321 if (!vga_model && !default_vga) {
1322 vga_interface_type = VGA_DEVICE;
1323 vga_interface_created = true;
1324 }
1325 if (!has_defaults || machine_class->no_serial) {
1326 default_serial = 0;
1327 }
1328 if (!has_defaults || machine_class->no_parallel) {
1329 default_parallel = 0;
1330 }
1331 if (!has_defaults || machine_class->no_floppy) {
1332 default_floppy = 0;
1333 }
1334 if (!has_defaults || machine_class->no_cdrom) {
1335 default_cdrom = 0;
1336 }
1337 if (!has_defaults || machine_class->no_sdcard) {
1338 default_sdcard = 0;
1339 }
1340 if (!has_defaults) {
1341 default_audio = 0;
1342 default_monitor = 0;
1343 default_net = 0;
1344 default_vga = 0;
1345 } else {
1346 if (default_net && machine_class->default_nic &&
1347 !module_object_class_by_name(machine_class->default_nic)) {
1348 warn_report("Default NIC '%s' is not available in this binary",
1349 machine_class->default_nic);
1350 default_net = 0;
1351 }
1352 }
1353 }
1354
1355 static void qemu_setup_display(void)
1356 {
1357 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1358 if (!qemu_display_find_default(&dpy)) {
1359 dpy.type = DISPLAY_TYPE_NONE;
1360 #if defined(CONFIG_VNC)
1361 vnc_parse("localhost:0,to=99,id=default");
1362 #endif
1363 }
1364 }
1365 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1366 dpy.type = DISPLAY_TYPE_NONE;
1367 }
1368
1369 qemu_display_early_init(&dpy);
1370 }
1371
1372 static void qemu_create_default_devices(void)
1373 {
1374 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1375
1376 if (is_daemonized()) {
1377 /* According to documentation and historically, -nographic redirects
1378 * serial port, parallel port and monitor to stdio, which does not work
1379 * with -daemonize. We can redirect these to null instead, but since
1380 * -nographic is legacy, let's just error out.
1381 * We disallow -nographic only if all other ports are not redirected
1382 * explicitly, to not break existing legacy setups which uses
1383 * -nographic _and_ redirects all ports explicitly - this is valid
1384 * usage, -nographic is just a no-op in this case.
1385 */
1386 if (nographic
1387 && (default_parallel || default_serial || default_monitor)) {
1388 error_report("-nographic cannot be used with -daemonize");
1389 exit(1);
1390 }
1391 }
1392
1393 if (nographic) {
1394 if (default_parallel)
1395 add_device_config(DEV_PARALLEL, "null");
1396 if (default_serial && default_monitor) {
1397 add_device_config(DEV_SERIAL, "mon:stdio");
1398 } else {
1399 if (default_serial)
1400 add_device_config(DEV_SERIAL, "stdio");
1401 if (default_monitor)
1402 monitor_parse("stdio", "readline", false);
1403 }
1404 } else {
1405 if (default_serial)
1406 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1407 if (default_parallel)
1408 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1409 if (default_monitor)
1410 monitor_parse("vc:80Cx24C", "readline", false);
1411 }
1412
1413 if (default_net) {
1414 QemuOptsList *net = qemu_find_opts("net");
1415 qemu_opts_parse(net, "nic", true, &error_abort);
1416 #ifdef CONFIG_SLIRP
1417 qemu_opts_parse(net, "user", true, &error_abort);
1418 #endif
1419 }
1420
1421 /* If no default VGA is requested, the default is "none". */
1422 if (default_vga) {
1423 vga_model = get_default_vga_model(machine_class);
1424 }
1425 if (vga_model) {
1426 select_vgahw(machine_class, vga_model);
1427 }
1428 }
1429
1430 static int serial_parse(const char *devname)
1431 {
1432 int index = num_serial_hds;
1433 char label[32];
1434
1435 if (strcmp(devname, "none") == 0)
1436 return 0;
1437 snprintf(label, sizeof(label), "serial%d", index);
1438 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1439
1440 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1441 if (!serial_hds[index]) {
1442 error_report("could not connect serial device"
1443 " to character backend '%s'", devname);
1444 return -1;
1445 }
1446 num_serial_hds++;
1447 return 0;
1448 }
1449
1450 Chardev *serial_hd(int i)
1451 {
1452 assert(i >= 0);
1453 if (i < num_serial_hds) {
1454 return serial_hds[i];
1455 }
1456 return NULL;
1457 }
1458
1459 static int parallel_parse(const char *devname)
1460 {
1461 static int index = 0;
1462 char label[32];
1463
1464 if (strcmp(devname, "none") == 0)
1465 return 0;
1466 if (index == MAX_PARALLEL_PORTS) {
1467 error_report("too many parallel ports");
1468 exit(1);
1469 }
1470 snprintf(label, sizeof(label), "parallel%d", index);
1471 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1472 if (!parallel_hds[index]) {
1473 error_report("could not connect parallel device"
1474 " to character backend '%s'", devname);
1475 return -1;
1476 }
1477 index++;
1478 return 0;
1479 }
1480
1481 static int debugcon_parse(const char *devname)
1482 {
1483 QemuOpts *opts;
1484
1485 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1486 error_report("invalid character backend '%s'", devname);
1487 exit(1);
1488 }
1489 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1490 if (!opts) {
1491 error_report("already have a debugcon device");
1492 exit(1);
1493 }
1494 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1495 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1496 return 0;
1497 }
1498
1499 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1500 {
1501 const MachineClass *mc1 = a, *mc2 = b;
1502 int res;
1503
1504 if (mc1->family == NULL) {
1505 if (mc2->family == NULL) {
1506 /* Compare standalone machine types against each other; they sort
1507 * in increasing order.
1508 */
1509 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1510 object_class_get_name(OBJECT_CLASS(mc2)));
1511 }
1512
1513 /* Standalone machine types sort after families. */
1514 return 1;
1515 }
1516
1517 if (mc2->family == NULL) {
1518 /* Families sort before standalone machine types. */
1519 return -1;
1520 }
1521
1522 /* Families sort between each other alphabetically increasingly. */
1523 res = strcmp(mc1->family, mc2->family);
1524 if (res != 0) {
1525 return res;
1526 }
1527
1528 /* Within the same family, machine types sort in decreasing order. */
1529 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1530 object_class_get_name(OBJECT_CLASS(mc1)));
1531 }
1532
1533 static void machine_help_func(const QDict *qdict)
1534 {
1535 GSList *machines, *el;
1536 const char *type = qdict_get_try_str(qdict, "type");
1537
1538 machines = object_class_get_list(TYPE_MACHINE, false);
1539 if (type) {
1540 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1541 if (machine_class) {
1542 type_print_class_properties(object_class_get_name(machine_class));
1543 return;
1544 }
1545 }
1546
1547 printf("Supported machines are:\n");
1548 machines = g_slist_sort(machines, machine_class_cmp);
1549 for (el = machines; el; el = el->next) {
1550 MachineClass *mc = el->data;
1551 if (mc->alias) {
1552 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1553 }
1554 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1555 mc->is_default ? " (default)" : "",
1556 mc->deprecation_reason ? " (deprecated)" : "");
1557 }
1558 }
1559
1560 static void
1561 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1562 {
1563 QDict *opts;
1564
1565 opts = qdict_new();
1566 /* Preserve the caller's reference to prop. */
1567 qobject_ref(prop);
1568 qdict_put(opts, propname, prop);
1569 keyval_merge(machine_opts_dict, opts, errp);
1570 qobject_unref(opts);
1571 }
1572
1573 static void
1574 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1575 const char *arg)
1576 {
1577 QDict *prop = NULL;
1578 bool help = false;
1579
1580 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1581 if (help) {
1582 qemu_opts_print_help(opts_list, true);
1583 exit(0);
1584 }
1585 machine_merge_property(propname, prop, &error_fatal);
1586 qobject_unref(prop);
1587 }
1588
1589 static const char *pid_file;
1590 struct UnlinkPidfileNotifier {
1591 Notifier notifier;
1592 char *pid_file_realpath;
1593 };
1594 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1595
1596 static void qemu_unlink_pidfile(Notifier *n, void *data)
1597 {
1598 struct UnlinkPidfileNotifier *upn;
1599
1600 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1601 unlink(upn->pid_file_realpath);
1602 }
1603
1604 static const QEMUOption *lookup_opt(int argc, char **argv,
1605 const char **poptarg, int *poptind)
1606 {
1607 const QEMUOption *popt;
1608 int optind = *poptind;
1609 char *r = argv[optind];
1610 const char *optarg;
1611
1612 loc_set_cmdline(argv, optind, 1);
1613 optind++;
1614 /* Treat --foo the same as -foo. */
1615 if (r[1] == '-')
1616 r++;
1617 popt = qemu_options;
1618 for(;;) {
1619 if (!popt->name) {
1620 error_report("invalid option");
1621 exit(1);
1622 }
1623 if (!strcmp(popt->name, r + 1))
1624 break;
1625 popt++;
1626 }
1627 if (popt->flags & HAS_ARG) {
1628 if (optind >= argc) {
1629 error_report("requires an argument");
1630 exit(1);
1631 }
1632 optarg = argv[optind++];
1633 loc_set_cmdline(argv, optind - 2, 2);
1634 } else {
1635 optarg = NULL;
1636 }
1637
1638 *poptarg = optarg;
1639 *poptind = optind;
1640
1641 return popt;
1642 }
1643
1644 static MachineClass *select_machine(QDict *qdict, Error **errp)
1645 {
1646 const char *machine_type = qdict_get_try_str(qdict, "type");
1647 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1648 MachineClass *machine_class;
1649 Error *local_err = NULL;
1650
1651 if (machine_type) {
1652 machine_class = find_machine(machine_type, machines);
1653 qdict_del(qdict, "type");
1654 if (!machine_class) {
1655 error_setg(&local_err, "unsupported machine type");
1656 }
1657 } else {
1658 machine_class = find_default_machine(machines);
1659 if (!machine_class) {
1660 error_setg(&local_err, "No machine specified, and there is no default");
1661 }
1662 }
1663
1664 g_slist_free(machines);
1665 if (local_err) {
1666 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1667 error_propagate(errp, local_err);
1668 }
1669 return machine_class;
1670 }
1671
1672 static int object_parse_property_opt(Object *obj,
1673 const char *name, const char *value,
1674 const char *skip, Error **errp)
1675 {
1676 if (g_str_equal(name, skip)) {
1677 return 0;
1678 }
1679
1680 if (!object_property_parse(obj, name, value, errp)) {
1681 return -1;
1682 }
1683
1684 return 0;
1685 }
1686
1687 /* *Non*recursively replace underscores with dashes in QDict keys. */
1688 static void keyval_dashify(QDict *qdict, Error **errp)
1689 {
1690 const QDictEntry *ent, *next;
1691 char *p;
1692
1693 for (ent = qdict_first(qdict); ent; ent = next) {
1694 g_autofree char *new_key = NULL;
1695
1696 next = qdict_next(qdict, ent);
1697 if (!strchr(ent->key, '_')) {
1698 continue;
1699 }
1700 new_key = g_strdup(ent->key);
1701 for (p = new_key; *p; p++) {
1702 if (*p == '_') {
1703 *p = '-';
1704 }
1705 }
1706 if (qdict_haskey(qdict, new_key)) {
1707 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1708 return;
1709 }
1710 qobject_ref(ent->value);
1711 qdict_put_obj(qdict, new_key, ent->value);
1712 qdict_del(qdict, ent->key);
1713 }
1714 }
1715
1716 static void qemu_apply_legacy_machine_options(QDict *qdict)
1717 {
1718 const char *value;
1719 QObject *prop;
1720
1721 keyval_dashify(qdict, &error_fatal);
1722
1723 /* Legacy options do not correspond to MachineState properties. */
1724 value = qdict_get_try_str(qdict, "accel");
1725 if (value) {
1726 accelerators = g_strdup(value);
1727 qdict_del(qdict, "accel");
1728 }
1729
1730 value = qdict_get_try_str(qdict, "igd-passthru");
1731 if (value) {
1732 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1733 false);
1734 qdict_del(qdict, "igd-passthru");
1735 }
1736
1737 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1738 if (value) {
1739 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1740 false);
1741 qdict_del(qdict, "kvm-shadow-mem");
1742 }
1743
1744 value = qdict_get_try_str(qdict, "kernel-irqchip");
1745 if (value) {
1746 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1747 false);
1748 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1749 false);
1750 qdict_del(qdict, "kernel-irqchip");
1751 }
1752
1753 value = qdict_get_try_str(qdict, "memory-backend");
1754 if (value) {
1755 if (mem_path) {
1756 error_report("'-mem-path' can't be used together with"
1757 "'-machine memory-backend'");
1758 exit(EXIT_FAILURE);
1759 }
1760
1761 /* Resolved later. */
1762 ram_memdev_id = g_strdup(value);
1763 qdict_del(qdict, "memory-backend");
1764 }
1765
1766 prop = qdict_get(qdict, "memory");
1767 if (prop) {
1768 have_custom_ram_size =
1769 qobject_type(prop) == QTYPE_QDICT &&
1770 qdict_haskey(qobject_to(QDict, prop), "size");
1771 }
1772 }
1773
1774 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1775 {
1776 ObjectOption *opt, *next;
1777
1778 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1779 const char *type = ObjectType_str(opt->opts->qom_type);
1780 if (type_opt_predicate(type)) {
1781 user_creatable_add_qapi(opt->opts, &error_fatal);
1782 qapi_free_ObjectOptions(opt->opts);
1783 QTAILQ_REMOVE(&object_opts, opt, next);
1784 g_free(opt);
1785 }
1786 }
1787 }
1788
1789 static void object_option_add_visitor(Visitor *v)
1790 {
1791 ObjectOption *opt = g_new0(ObjectOption, 1);
1792 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1793 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1794 }
1795
1796 static void object_option_parse(const char *str)
1797 {
1798 QemuOpts *opts;
1799 const char *type;
1800 Visitor *v;
1801
1802 if (str[0] == '{') {
1803 QObject *obj = qobject_from_json(str, &error_fatal);
1804
1805 v = qobject_input_visitor_new(obj);
1806 qobject_unref(obj);
1807 } else {
1808 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1809 str, true);
1810 if (!opts) {
1811 exit(1);
1812 }
1813
1814 type = qemu_opt_get(opts, "qom-type");
1815 if (!type) {
1816 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1817 }
1818 if (user_creatable_print_help(type, opts)) {
1819 exit(0);
1820 }
1821
1822 v = opts_visitor_new(opts);
1823 }
1824
1825 object_option_add_visitor(v);
1826 visit_free(v);
1827 }
1828
1829 /*
1830 * Very early object creation, before the sandbox options have been activated.
1831 */
1832 static bool object_create_pre_sandbox(const char *type)
1833 {
1834 /*
1835 * Objects should in general not get initialized "too early" without
1836 * a reason. If you add one, state the reason in a comment!
1837 */
1838
1839 /*
1840 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1841 * affinity of threads.
1842 */
1843 if (g_str_equal(type, "thread-context")) {
1844 return true;
1845 }
1846
1847 return false;
1848 }
1849
1850 /*
1851 * Initial object creation happens before all other
1852 * QEMU data types are created. The majority of objects
1853 * can be created at this point. The rng-egd object
1854 * cannot be created here, as it depends on the chardev
1855 * already existing.
1856 */
1857 static bool object_create_early(const char *type)
1858 {
1859 /*
1860 * Objects should not be made "delayed" without a reason. If you
1861 * add one, state the reason in a comment!
1862 */
1863
1864 /* Reason: already created. */
1865 if (object_create_pre_sandbox(type)) {
1866 return false;
1867 }
1868
1869 /* Reason: property "chardev" */
1870 if (g_str_equal(type, "rng-egd") ||
1871 g_str_equal(type, "qtest")) {
1872 return false;
1873 }
1874
1875 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1876 /* Reason: cryptodev-vhost-user property "chardev" */
1877 if (g_str_equal(type, "cryptodev-vhost-user")) {
1878 return false;
1879 }
1880 #endif
1881
1882 /* Reason: vhost-user-blk-server property "node-name" */
1883 if (g_str_equal(type, "vhost-user-blk-server")) {
1884 return false;
1885 }
1886 /*
1887 * Reason: filter-* property "netdev" etc.
1888 */
1889 if (g_str_equal(type, "filter-buffer") ||
1890 g_str_equal(type, "filter-dump") ||
1891 g_str_equal(type, "filter-mirror") ||
1892 g_str_equal(type, "filter-redirector") ||
1893 g_str_equal(type, "colo-compare") ||
1894 g_str_equal(type, "filter-rewriter") ||
1895 g_str_equal(type, "filter-replay")) {
1896 return false;
1897 }
1898
1899 /*
1900 * Allocation of large amounts of memory may delay
1901 * chardev initialization for too long, and trigger timeouts
1902 * on software that waits for a monitor socket to be created
1903 * (e.g. libvirt).
1904 */
1905 if (g_str_has_prefix(type, "memory-backend-")) {
1906 return false;
1907 }
1908
1909 return true;
1910 }
1911
1912 static void qemu_apply_machine_options(QDict *qdict)
1913 {
1914 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1915
1916 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1917 /* fall back to the -kernel/-append */
1918 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1919 }
1920
1921 if (current_machine->smp.cpus > 1) {
1922 replay_add_blocker("smp");
1923 }
1924 }
1925
1926 static void qemu_create_early_backends(void)
1927 {
1928 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1929 #if defined(CONFIG_SDL)
1930 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1931 #else
1932 const bool use_sdl = false;
1933 #endif
1934 #if defined(CONFIG_GTK)
1935 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1936 #else
1937 const bool use_gtk = false;
1938 #endif
1939
1940 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1941 error_report("window-close is only valid for GTK and SDL, "
1942 "ignoring option");
1943 }
1944
1945 qemu_console_early_init();
1946
1947 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1948 #if defined(CONFIG_OPENGL)
1949 error_report("OpenGL is not supported by the display");
1950 #else
1951 error_report("OpenGL support is disabled");
1952 #endif
1953 exit(1);
1954 }
1955
1956 object_option_foreach_add(object_create_early);
1957
1958 /* spice needs the timers to be initialized by this point */
1959 /* spice must initialize before audio as it changes the default audiodev */
1960 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1961 qemu_spice.init();
1962
1963 qemu_opts_foreach(qemu_find_opts("chardev"),
1964 chardev_init_func, NULL, &error_fatal);
1965
1966 #ifdef CONFIG_VIRTFS
1967 qemu_opts_foreach(qemu_find_opts("fsdev"),
1968 fsdev_init_func, NULL, &error_fatal);
1969 #endif
1970
1971 /*
1972 * Note: we need to create audio and block backends before
1973 * setting machine properties, so they can be referred to.
1974 */
1975 configure_blockdev(&bdo_queue, machine_class, snapshot);
1976 audio_init_audiodevs();
1977 if (default_audio) {
1978 audio_create_default_audiodevs();
1979 }
1980 }
1981
1982
1983 /*
1984 * The remainder of object creation happens after the
1985 * creation of chardev, fsdev, net clients and device data types.
1986 */
1987 static bool object_create_late(const char *type)
1988 {
1989 return !object_create_early(type) && !object_create_pre_sandbox(type);
1990 }
1991
1992 static void qemu_create_late_backends(void)
1993 {
1994 if (qtest_chrdev) {
1995 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
1996 }
1997
1998 net_init_clients();
1999
2000 object_option_foreach_add(object_create_late);
2001
2002 if (tpm_init() < 0) {
2003 exit(1);
2004 }
2005
2006 qemu_opts_foreach(qemu_find_opts("mon"),
2007 mon_init_func, NULL, &error_fatal);
2008
2009 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2010 exit(1);
2011 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2012 exit(1);
2013 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2014 exit(1);
2015
2016 /* now chardevs have been created we may have semihosting to connect */
2017 qemu_semihosting_chardev_init();
2018 }
2019
2020 static void qemu_resolve_machine_memdev(void)
2021 {
2022 if (ram_memdev_id) {
2023 Object *backend;
2024 ram_addr_t backend_size;
2025
2026 backend = object_resolve_path_type(ram_memdev_id,
2027 TYPE_MEMORY_BACKEND, NULL);
2028 if (!backend) {
2029 error_report("Memory backend '%s' not found", ram_memdev_id);
2030 exit(EXIT_FAILURE);
2031 }
2032 if (!have_custom_ram_size) {
2033 backend_size = object_property_get_uint(backend, "size", &error_abort);
2034 current_machine->ram_size = backend_size;
2035 }
2036 object_property_set_link(OBJECT(current_machine),
2037 "memory-backend", backend, &error_fatal);
2038 }
2039 }
2040
2041 static void parse_memory_options(void)
2042 {
2043 QemuOpts *opts = qemu_find_opts_singleton("memory");
2044 QDict *dict, *prop;
2045 const char *mem_str;
2046 Location loc;
2047
2048 loc_push_none(&loc);
2049 qemu_opts_loc_restore(opts);
2050
2051 prop = qdict_new();
2052
2053 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2054 /* Fix up legacy suffix-less format */
2055 mem_str = qemu_opt_get(opts, "size");
2056 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2057 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2058 qdict_put_str(prop, "size", mib_str);
2059 } else {
2060 qdict_put_str(prop, "size", mem_str);
2061 }
2062 }
2063
2064 if (qemu_opt_get(opts, "maxmem")) {
2065 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2066 }
2067 if (qemu_opt_get(opts, "slots")) {
2068 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2069 }
2070
2071 dict = qdict_new();
2072 qdict_put(dict, "memory", prop);
2073 keyval_merge(machine_opts_dict, dict, &error_fatal);
2074 qobject_unref(dict);
2075 loc_pop(&loc);
2076 }
2077
2078 static void qemu_create_machine(QDict *qdict)
2079 {
2080 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2081 object_set_machine_compat_props(machine_class->compat_props);
2082
2083 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2084 object_property_add_child(object_get_root(), "machine",
2085 OBJECT(current_machine));
2086 object_property_add_child(container_get(OBJECT(current_machine),
2087 "/unattached"),
2088 "sysbus", OBJECT(sysbus_get_default()));
2089
2090 if (machine_class->minimum_page_bits) {
2091 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2092 /* This would be a board error: specifying a minimum smaller than
2093 * a target's compile-time fixed setting.
2094 */
2095 g_assert_not_reached();
2096 }
2097 }
2098
2099 cpu_exec_init_all();
2100 page_size_init();
2101
2102 if (machine_class->hw_version) {
2103 qemu_set_hw_version(machine_class->hw_version);
2104 }
2105
2106 /*
2107 * Get the default machine options from the machine if it is not already
2108 * specified either by the configuration file or by the command line.
2109 */
2110 if (machine_class->default_machine_opts) {
2111 QDict *default_opts =
2112 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2113 &error_abort);
2114 qemu_apply_legacy_machine_options(default_opts);
2115 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2116 false, &error_abort);
2117 qobject_unref(default_opts);
2118 }
2119 }
2120
2121 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2122 {
2123 GlobalProperty *g;
2124
2125 g = g_malloc0(sizeof(*g));
2126 g->driver = qemu_opt_get(opts, "driver");
2127 g->property = qemu_opt_get(opts, "property");
2128 g->value = qemu_opt_get(opts, "value");
2129 qdev_prop_register_global(g);
2130 return 0;
2131 }
2132
2133 /*
2134 * Return whether configuration group @group is stored in QemuOpts, or
2135 * recorded as one or more QDicts by qemu_record_config_group.
2136 */
2137 static bool is_qemuopts_group(const char *group)
2138 {
2139 if (g_str_equal(group, "object") ||
2140 g_str_equal(group, "audiodev") ||
2141 g_str_equal(group, "machine") ||
2142 g_str_equal(group, "smp-opts") ||
2143 g_str_equal(group, "boot-opts")) {
2144 return false;
2145 }
2146 return true;
2147 }
2148
2149 static void qemu_record_config_group(const char *group, QDict *dict,
2150 bool from_json, Error **errp)
2151 {
2152 if (g_str_equal(group, "object")) {
2153 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2154 object_option_add_visitor(v);
2155 visit_free(v);
2156
2157 } else if (g_str_equal(group, "audiodev")) {
2158 Audiodev *dev = NULL;
2159 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2160 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2161 audio_define(dev);
2162 }
2163 visit_free(v);
2164
2165 } else if (g_str_equal(group, "machine")) {
2166 /*
2167 * Cannot merge string-valued and type-safe dictionaries, so JSON
2168 * is not accepted yet for -M.
2169 */
2170 assert(!from_json);
2171 keyval_merge(machine_opts_dict, dict, errp);
2172 } else if (g_str_equal(group, "smp-opts")) {
2173 machine_merge_property("smp", dict, &error_fatal);
2174 } else if (g_str_equal(group, "boot-opts")) {
2175 machine_merge_property("boot", dict, &error_fatal);
2176 } else {
2177 abort();
2178 }
2179 }
2180
2181 /*
2182 * Parse non-QemuOpts config file groups, pass the rest to
2183 * qemu_config_do_parse.
2184 */
2185 static void qemu_parse_config_group(const char *group, QDict *qdict,
2186 void *opaque, Error **errp)
2187 {
2188 QObject *crumpled;
2189 if (is_qemuopts_group(group)) {
2190 qemu_config_do_parse(group, qdict, opaque, errp);
2191 return;
2192 }
2193
2194 crumpled = qdict_crumple(qdict, errp);
2195 if (!crumpled) {
2196 return;
2197 }
2198 switch (qobject_type(crumpled)) {
2199 case QTYPE_QDICT:
2200 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2201 break;
2202 case QTYPE_QLIST:
2203 error_setg(errp, "Lists cannot be at top level of a configuration section");
2204 break;
2205 default:
2206 g_assert_not_reached();
2207 }
2208 qobject_unref(crumpled);
2209 }
2210
2211 static void qemu_read_default_config_file(Error **errp)
2212 {
2213 ERRP_GUARD();
2214 int ret;
2215 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2216
2217 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2218 if (ret < 0) {
2219 if (ret == -ENOENT) {
2220 error_free(*errp);
2221 *errp = NULL;
2222 }
2223 }
2224 }
2225
2226 static void qemu_set_option(const char *str, Error **errp)
2227 {
2228 char group[64], id[64], arg[64];
2229 QemuOptsList *list;
2230 QemuOpts *opts;
2231 int rc, offset;
2232
2233 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2234 if (rc < 3 || str[offset] != '=') {
2235 error_setg(errp, "can't parse: \"%s\"", str);
2236 return;
2237 }
2238
2239 if (!is_qemuopts_group(group)) {
2240 error_setg(errp, "-set is not supported with %s", group);
2241 } else {
2242 list = qemu_find_opts_err(group, errp);
2243 if (list) {
2244 opts = qemu_opts_find(list, id);
2245 if (!opts) {
2246 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2247 return;
2248 }
2249 qemu_opt_set(opts, arg, str + offset + 1, errp);
2250 }
2251 }
2252 }
2253
2254 static void user_register_global_props(void)
2255 {
2256 qemu_opts_foreach(qemu_find_opts("global"),
2257 global_init_func, NULL, NULL);
2258 }
2259
2260 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2261 {
2262 icount_configure(opts, errp);
2263 return 0;
2264 }
2265
2266 static int accelerator_set_property(void *opaque,
2267 const char *name, const char *value,
2268 Error **errp)
2269 {
2270 return object_parse_property_opt(opaque, name, value, "accel", errp);
2271 }
2272
2273 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2274 {
2275 bool *p_init_failed = opaque;
2276 const char *acc = qemu_opt_get(opts, "accel");
2277 AccelClass *ac = accel_find(acc);
2278 AccelState *accel;
2279 int ret;
2280 bool qtest_with_kvm;
2281
2282 if (!acc) {
2283 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2284 goto bad;
2285 }
2286
2287 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2288
2289 if (!ac) {
2290 if (!qtest_with_kvm) {
2291 error_report("invalid accelerator %s", acc);
2292 }
2293 goto bad;
2294 }
2295 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2296 object_apply_compat_props(OBJECT(accel));
2297 qemu_opt_foreach(opts, accelerator_set_property,
2298 accel,
2299 &error_fatal);
2300 /*
2301 * If legacy -singlestep option is set, honour it for TCG and
2302 * silently ignore for any other accelerator (which is how this
2303 * option has always behaved).
2304 */
2305 if (opt_one_insn_per_tb) {
2306 /*
2307 * This will always succeed for TCG, and we want to ignore
2308 * the error from trying to set a nonexistent property
2309 * on any other accelerator.
2310 */
2311 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL);
2312 }
2313 ret = accel_init_machine(accel, current_machine);
2314 if (ret < 0) {
2315 if (!qtest_with_kvm || ret != -ENOENT) {
2316 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2317 }
2318 goto bad;
2319 }
2320
2321 return 1;
2322
2323 bad:
2324 *p_init_failed = true;
2325 return 0;
2326 }
2327
2328 static void configure_accelerators(const char *progname)
2329 {
2330 bool init_failed = false;
2331
2332 qemu_opts_foreach(qemu_find_opts("icount"),
2333 do_configure_icount, NULL, &error_fatal);
2334
2335 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2336 char **accel_list, **tmp;
2337
2338 if (accelerators == NULL) {
2339 /* Select the default accelerator */
2340 bool have_tcg = accel_find("tcg");
2341 bool have_kvm = accel_find("kvm");
2342
2343 if (have_tcg && have_kvm) {
2344 if (g_str_has_suffix(progname, "kvm")) {
2345 /* If the program name ends with "kvm", we prefer KVM */
2346 accelerators = "kvm:tcg";
2347 } else {
2348 accelerators = "tcg:kvm";
2349 }
2350 } else if (have_kvm) {
2351 accelerators = "kvm";
2352 } else if (have_tcg) {
2353 accelerators = "tcg";
2354 } else {
2355 error_report("No accelerator selected and"
2356 " no default accelerator available");
2357 exit(1);
2358 }
2359 }
2360 accel_list = g_strsplit(accelerators, ":", 0);
2361
2362 for (tmp = accel_list; *tmp; tmp++) {
2363 /*
2364 * Filter invalid accelerators here, to prevent obscenities
2365 * such as "-machine accel=tcg,,thread=single".
2366 */
2367 if (accel_find(*tmp)) {
2368 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2369 } else {
2370 init_failed = true;
2371 error_report("invalid accelerator %s", *tmp);
2372 }
2373 }
2374 g_strfreev(accel_list);
2375 } else {
2376 if (accelerators != NULL) {
2377 error_report("The -accel and \"-machine accel=\" options are incompatible");
2378 exit(1);
2379 }
2380 }
2381
2382 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2383 do_configure_accelerator, &init_failed, &error_fatal)) {
2384 if (!init_failed) {
2385 error_report("no accelerator found");
2386 }
2387 exit(1);
2388 }
2389
2390 if (init_failed && !qtest_chrdev) {
2391 error_report("falling back to %s", current_accel_name());
2392 }
2393
2394 if (icount_enabled() && !tcg_enabled()) {
2395 error_report("-icount is not allowed with hardware virtualization");
2396 exit(1);
2397 }
2398 }
2399
2400 static void qemu_validate_options(const QDict *machine_opts)
2401 {
2402 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2403 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2404 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2405
2406 if (kernel_filename == NULL) {
2407 if (kernel_cmdline != NULL) {
2408 error_report("-append only allowed with -kernel option");
2409 exit(1);
2410 }
2411
2412 if (initrd_filename != NULL) {
2413 error_report("-initrd only allowed with -kernel option");
2414 exit(1);
2415 }
2416 }
2417
2418 if (loadvm && preconfig_requested) {
2419 error_report("'preconfig' and 'loadvm' options are "
2420 "mutually exclusive");
2421 exit(EXIT_FAILURE);
2422 }
2423 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2424 error_report("'preconfig' supports '-incoming defer' only");
2425 exit(EXIT_FAILURE);
2426 }
2427
2428 #ifdef CONFIG_CURSES
2429 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2430 error_report("curses display cannot be used with -daemonize");
2431 exit(1);
2432 }
2433 #endif
2434 }
2435
2436 static void qemu_process_sugar_options(void)
2437 {
2438 if (mem_prealloc) {
2439 QObject *smp = qdict_get(machine_opts_dict, "smp");
2440 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2441 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2442 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2443 const char *val = qstring_get_str(qobject_to(QString, cpus));
2444 object_register_sugar_prop("memory-backend", "prealloc-threads",
2445 val, false);
2446 }
2447 }
2448 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2449 }
2450 }
2451
2452 /* -action processing */
2453
2454 /*
2455 * Process all the -action parameters parsed from cmdline.
2456 */
2457 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2458 {
2459 Error *local_err = NULL;
2460 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2461 QObject *ret = NULL;
2462 qmp_marshal_set_action(qdict, &ret, &local_err);
2463 qobject_unref(ret);
2464 qobject_unref(qdict);
2465 if (local_err) {
2466 error_propagate(errp, local_err);
2467 return 1;
2468 }
2469 return 0;
2470 }
2471
2472 static void qemu_process_early_options(void)
2473 {
2474 qemu_opts_foreach(qemu_find_opts("name"),
2475 parse_name, NULL, &error_fatal);
2476
2477 object_option_foreach_add(object_create_pre_sandbox);
2478
2479 #ifdef CONFIG_SECCOMP
2480 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2481 if (olist) {
2482 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2483 }
2484 #endif
2485
2486 if (qemu_opts_foreach(qemu_find_opts("action"),
2487 process_runstate_actions, NULL, &error_fatal)) {
2488 exit(1);
2489 }
2490
2491 #ifndef _WIN32
2492 qemu_opts_foreach(qemu_find_opts("add-fd"),
2493 parse_add_fd, NULL, &error_fatal);
2494
2495 qemu_opts_foreach(qemu_find_opts("add-fd"),
2496 cleanup_add_fd, NULL, &error_fatal);
2497 #endif
2498
2499 /* Open the logfile at this point and set the log mask if necessary. */
2500 {
2501 int mask = 0;
2502 if (log_mask) {
2503 mask = qemu_str_to_log_mask(log_mask);
2504 if (!mask) {
2505 qemu_print_log_usage(stdout);
2506 exit(1);
2507 }
2508 }
2509 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2510 }
2511
2512 qemu_add_default_firmwarepath();
2513 }
2514
2515 static void qemu_process_help_options(void)
2516 {
2517 /*
2518 * Check for -cpu help and -device help before we call select_machine(),
2519 * which will return an error if the architecture has no default machine
2520 * type and the user did not specify one, so that the user doesn't need
2521 * to say '-cpu help -machine something'.
2522 */
2523 if (cpu_option && is_help_option(cpu_option)) {
2524 list_cpus();
2525 exit(0);
2526 }
2527
2528 if (qemu_opts_foreach(qemu_find_opts("device"),
2529 device_help_func, NULL, NULL)) {
2530 exit(0);
2531 }
2532
2533 /* -L help lists the data directories and exits. */
2534 if (list_data_dirs) {
2535 qemu_list_data_dirs();
2536 exit(0);
2537 }
2538 }
2539
2540 static void qemu_maybe_daemonize(const char *pid_file)
2541 {
2542 Error *err = NULL;
2543
2544 os_daemonize();
2545 rcu_disable_atfork();
2546
2547 if (pid_file) {
2548 char *pid_file_realpath = NULL;
2549
2550 if (!qemu_write_pidfile(pid_file, &err)) {
2551 error_reportf_err(err, "cannot create PID file: ");
2552 exit(1);
2553 }
2554
2555 pid_file_realpath = g_malloc0(PATH_MAX);
2556 if (!realpath(pid_file, pid_file_realpath)) {
2557 if (errno != ENOENT) {
2558 warn_report("not removing PID file on exit: cannot resolve PID "
2559 "file path: %s: %s", pid_file, strerror(errno));
2560 }
2561 return;
2562 }
2563
2564 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2565 .notifier = {
2566 .notify = qemu_unlink_pidfile,
2567 },
2568 .pid_file_realpath = pid_file_realpath,
2569 };
2570 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2571 }
2572 }
2573
2574 static void qemu_init_displays(void)
2575 {
2576 DisplayState *ds;
2577
2578 /* init local displays */
2579 ds = init_displaystate();
2580 qemu_display_init(ds, &dpy);
2581
2582 /* must be after terminal init, SDL library changes signal handlers */
2583 os_setup_signal_handling();
2584
2585 /* init remote displays */
2586 #ifdef CONFIG_VNC
2587 qemu_opts_foreach(qemu_find_opts("vnc"),
2588 vnc_init_func, NULL, &error_fatal);
2589 #endif
2590
2591 if (using_spice) {
2592 qemu_spice.display_init();
2593 }
2594 }
2595
2596 static void qemu_init_board(void)
2597 {
2598 /* process plugin before CPUs are created, but once -smp has been parsed */
2599 qemu_plugin_load_list(&plugin_list, &error_fatal);
2600
2601 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2602 machine_run_board_init(current_machine, mem_path, &error_fatal);
2603
2604 drive_check_orphaned();
2605
2606 realtime_init();
2607 }
2608
2609 static void qemu_create_cli_devices(void)
2610 {
2611 DeviceOption *opt;
2612
2613 soundhw_init();
2614
2615 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2616 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2617
2618 /* init USB devices */
2619 if (machine_usb(current_machine)) {
2620 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2621 exit(1);
2622 }
2623
2624 /* init generic devices */
2625 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2626 qemu_opts_foreach(qemu_find_opts("device"),
2627 device_init_func, NULL, &error_fatal);
2628 QTAILQ_FOREACH(opt, &device_opts, next) {
2629 DeviceState *dev;
2630 loc_push_restore(&opt->loc);
2631 /*
2632 * TODO Eventually we should call qmp_device_add() here to make sure it
2633 * behaves the same, but QMP still has to accept incorrectly typed
2634 * options until libvirt is fixed and we want to be strict on the CLI
2635 * from the start, so call qdev_device_add_from_qdict() directly for
2636 * now.
2637 */
2638 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2639 object_unref(OBJECT(dev));
2640 loc_pop(&opt->loc);
2641 }
2642 rom_reset_order_override();
2643 }
2644
2645 static void qemu_machine_creation_done(void)
2646 {
2647 MachineState *machine = MACHINE(qdev_get_machine());
2648
2649 /* Did we create any drives that we failed to create a device for? */
2650 drive_check_orphaned();
2651
2652 /* Don't warn about the default network setup that you get if
2653 * no command line -net or -netdev options are specified. There
2654 * are two cases that we would otherwise complain about:
2655 * (1) board doesn't support a NIC but the implicit "-net nic"
2656 * requested one
2657 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2658 * sets up a nic that isn't connected to anything.
2659 */
2660 if (!default_net && (!qtest_enabled() || has_defaults)) {
2661 net_check_clients();
2662 }
2663
2664 qdev_prop_check_globals();
2665
2666 qdev_machine_creation_done();
2667
2668 if (machine->cgs) {
2669 /*
2670 * Verify that Confidential Guest Support has actually been initialized
2671 */
2672 assert(machine->cgs->ready);
2673 }
2674
2675 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2676 exit(1);
2677 }
2678 if (!vga_interface_created && !default_vga &&
2679 vga_interface_type != VGA_NONE) {
2680 warn_report("A -vga option was passed but this machine "
2681 "type does not use that option; "
2682 "No VGA device has been created");
2683 }
2684 }
2685
2686 void qmp_x_exit_preconfig(Error **errp)
2687 {
2688 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2689 error_setg(errp, "The command is permitted only before machine initialization");
2690 return;
2691 }
2692
2693 qemu_init_board();
2694 qemu_create_cli_devices();
2695 qemu_machine_creation_done();
2696
2697 if (loadvm) {
2698 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2699 }
2700 if (replay_mode != REPLAY_MODE_NONE) {
2701 replay_vmstate_init();
2702 }
2703
2704 if (incoming) {
2705 Error *local_err = NULL;
2706 if (strcmp(incoming, "defer") != 0) {
2707 qmp_migrate_incoming(incoming, false, NULL, &local_err);
2708 if (local_err) {
2709 error_reportf_err(local_err, "-incoming %s: ", incoming);
2710 exit(1);
2711 }
2712 }
2713 } else if (autostart) {
2714 qmp_cont(NULL);
2715 }
2716 }
2717
2718 void qemu_init(int argc, char **argv)
2719 {
2720 QemuOpts *opts;
2721 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2722 QemuOptsList *olist;
2723 int optind;
2724 const char *optarg;
2725 MachineClass *machine_class;
2726 bool userconfig = true;
2727 FILE *vmstate_dump_file = NULL;
2728
2729 qemu_add_opts(&qemu_drive_opts);
2730 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2731 qemu_add_drive_opts(&qemu_common_drive_opts);
2732 qemu_add_drive_opts(&qemu_drive_opts);
2733 qemu_add_drive_opts(&bdrv_runtime_opts);
2734 qemu_add_opts(&qemu_chardev_opts);
2735 qemu_add_opts(&qemu_device_opts);
2736 qemu_add_opts(&qemu_netdev_opts);
2737 qemu_add_opts(&qemu_nic_opts);
2738 qemu_add_opts(&qemu_net_opts);
2739 qemu_add_opts(&qemu_rtc_opts);
2740 qemu_add_opts(&qemu_global_opts);
2741 qemu_add_opts(&qemu_mon_opts);
2742 qemu_add_opts(&qemu_trace_opts);
2743 qemu_plugin_add_opts();
2744 qemu_add_opts(&qemu_option_rom_opts);
2745 qemu_add_opts(&qemu_accel_opts);
2746 qemu_add_opts(&qemu_mem_opts);
2747 qemu_add_opts(&qemu_smp_opts);
2748 qemu_add_opts(&qemu_boot_opts);
2749 qemu_add_opts(&qemu_add_fd_opts);
2750 qemu_add_opts(&qemu_object_opts);
2751 qemu_add_opts(&qemu_tpmdev_opts);
2752 qemu_add_opts(&qemu_overcommit_opts);
2753 qemu_add_opts(&qemu_msg_opts);
2754 qemu_add_opts(&qemu_name_opts);
2755 qemu_add_opts(&qemu_numa_opts);
2756 qemu_add_opts(&qemu_icount_opts);
2757 qemu_add_opts(&qemu_semihosting_config_opts);
2758 qemu_add_opts(&qemu_fw_cfg_opts);
2759 qemu_add_opts(&qemu_action_opts);
2760 qemu_add_run_with_opts();
2761 module_call_init(MODULE_INIT_OPTS);
2762
2763 error_init(argv[0]);
2764 qemu_init_exec_dir(argv[0]);
2765
2766 qemu_init_arch_modules();
2767
2768 qemu_init_subsystems();
2769
2770 /* first pass of option parsing */
2771 optind = 1;
2772 while (optind < argc) {
2773 if (argv[optind][0] != '-') {
2774 /* disk image */
2775 optind++;
2776 } else {
2777 const QEMUOption *popt;
2778
2779 popt = lookup_opt(argc, argv, &optarg, &optind);
2780 switch (popt->index) {
2781 case QEMU_OPTION_nouserconfig:
2782 userconfig = false;
2783 break;
2784 }
2785 }
2786 }
2787
2788 machine_opts_dict = qdict_new();
2789 if (userconfig) {
2790 qemu_read_default_config_file(&error_fatal);
2791 }
2792
2793 /* second pass of option parsing */
2794 optind = 1;
2795 for(;;) {
2796 if (optind >= argc)
2797 break;
2798 if (argv[optind][0] != '-') {
2799 loc_set_cmdline(argv, optind, 1);
2800 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2801 } else {
2802 const QEMUOption *popt;
2803
2804 popt = lookup_opt(argc, argv, &optarg, &optind);
2805 if (!(popt->arch_mask & arch_type)) {
2806 error_report("Option not supported for this target");
2807 exit(1);
2808 }
2809 switch(popt->index) {
2810 case QEMU_OPTION_cpu:
2811 /* hw initialization will check this */
2812 cpu_option = optarg;
2813 break;
2814 case QEMU_OPTION_hda:
2815 case QEMU_OPTION_hdb:
2816 case QEMU_OPTION_hdc:
2817 case QEMU_OPTION_hdd:
2818 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2819 HD_OPTS);
2820 break;
2821 case QEMU_OPTION_blockdev:
2822 {
2823 Visitor *v;
2824 BlockdevOptionsQueueEntry *bdo;
2825
2826 v = qobject_input_visitor_new_str(optarg, "driver",
2827 &error_fatal);
2828
2829 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2830 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2831 &error_fatal);
2832 visit_free(v);
2833 loc_save(&bdo->loc);
2834 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2835 break;
2836 }
2837 case QEMU_OPTION_drive:
2838 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2839 optarg, false);
2840 if (opts == NULL) {
2841 exit(1);
2842 }
2843 break;
2844 case QEMU_OPTION_set:
2845 qemu_set_option(optarg, &error_fatal);
2846 break;
2847 case QEMU_OPTION_global:
2848 if (qemu_global_option(optarg) != 0)
2849 exit(1);
2850 break;
2851 case QEMU_OPTION_mtdblock:
2852 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2853 break;
2854 case QEMU_OPTION_sd:
2855 drive_add(IF_SD, -1, optarg, SD_OPTS);
2856 break;
2857 case QEMU_OPTION_pflash:
2858 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2859 break;
2860 case QEMU_OPTION_snapshot:
2861 snapshot = 1;
2862 replay_add_blocker("-snapshot");
2863 break;
2864 case QEMU_OPTION_numa:
2865 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2866 optarg, true);
2867 if (!opts) {
2868 exit(1);
2869 }
2870 break;
2871 case QEMU_OPTION_display:
2872 parse_display(optarg);
2873 break;
2874 case QEMU_OPTION_nographic:
2875 qdict_put_str(machine_opts_dict, "graphics", "off");
2876 nographic = true;
2877 dpy.type = DISPLAY_TYPE_NONE;
2878 break;
2879 case QEMU_OPTION_portrait:
2880 graphic_rotate = 90;
2881 break;
2882 case QEMU_OPTION_rotate:
2883 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2884 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2885 graphic_rotate != 180 && graphic_rotate != 270) {
2886 error_report("only 90, 180, 270 deg rotation is available");
2887 exit(1);
2888 }
2889 break;
2890 case QEMU_OPTION_kernel:
2891 qdict_put_str(machine_opts_dict, "kernel", optarg);
2892 break;
2893 case QEMU_OPTION_initrd:
2894 qdict_put_str(machine_opts_dict, "initrd", optarg);
2895 break;
2896 case QEMU_OPTION_append:
2897 qdict_put_str(machine_opts_dict, "append", optarg);
2898 break;
2899 case QEMU_OPTION_dtb:
2900 qdict_put_str(machine_opts_dict, "dtb", optarg);
2901 break;
2902 case QEMU_OPTION_cdrom:
2903 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2904 break;
2905 case QEMU_OPTION_boot:
2906 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2907 break;
2908 case QEMU_OPTION_fda:
2909 case QEMU_OPTION_fdb:
2910 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2911 optarg, FD_OPTS);
2912 break;
2913 case QEMU_OPTION_no_fd_bootchk:
2914 fd_bootchk = 0;
2915 break;
2916 case QEMU_OPTION_netdev:
2917 default_net = 0;
2918 if (netdev_is_modern(optarg)) {
2919 netdev_parse_modern(optarg);
2920 } else {
2921 net_client_parse(qemu_find_opts("netdev"), optarg);
2922 }
2923 break;
2924 case QEMU_OPTION_nic:
2925 default_net = 0;
2926 net_client_parse(qemu_find_opts("nic"), optarg);
2927 break;
2928 case QEMU_OPTION_net:
2929 default_net = 0;
2930 net_client_parse(qemu_find_opts("net"), optarg);
2931 break;
2932 #ifdef CONFIG_LIBISCSI
2933 case QEMU_OPTION_iscsi:
2934 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2935 optarg, false);
2936 if (!opts) {
2937 exit(1);
2938 }
2939 break;
2940 #endif
2941 case QEMU_OPTION_audiodev:
2942 default_audio = 0;
2943 audio_parse_option(optarg);
2944 break;
2945 case QEMU_OPTION_audio: {
2946 bool help;
2947 char *model = NULL;
2948 Audiodev *dev = NULL;
2949 Visitor *v;
2950 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2951 default_audio = 0;
2952 if (help || (qdict_haskey(dict, "driver") &&
2953 is_help_option(qdict_get_str(dict, "driver")))) {
2954 audio_help();
2955 exit(EXIT_SUCCESS);
2956 }
2957 if (!qdict_haskey(dict, "id")) {
2958 qdict_put_str(dict, "id", "audiodev0");
2959 }
2960 if (qdict_haskey(dict, "model")) {
2961 model = g_strdup(qdict_get_str(dict, "model"));
2962 qdict_del(dict, "model");
2963 if (is_help_option(model)) {
2964 show_valid_soundhw();
2965 exit(0);
2966 }
2967 }
2968 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2969 qobject_unref(dict);
2970 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2971 visit_free(v);
2972 if (model) {
2973 audio_define(dev);
2974 select_soundhw(model, dev->id);
2975 g_free(model);
2976 } else {
2977 audio_define_default(dev, &error_fatal);
2978 }
2979 break;
2980 }
2981 case QEMU_OPTION_h:
2982 help(0);
2983 break;
2984 case QEMU_OPTION_version:
2985 version();
2986 exit(0);
2987 break;
2988 case QEMU_OPTION_m:
2989 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
2990 if (opts == NULL) {
2991 exit(1);
2992 }
2993 break;
2994 #ifdef CONFIG_TPM
2995 case QEMU_OPTION_tpmdev:
2996 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
2997 exit(1);
2998 }
2999 break;
3000 #endif
3001 case QEMU_OPTION_mempath:
3002 mem_path = optarg;
3003 break;
3004 case QEMU_OPTION_mem_prealloc:
3005 mem_prealloc = 1;
3006 break;
3007 case QEMU_OPTION_d:
3008 log_mask = optarg;
3009 break;
3010 case QEMU_OPTION_D:
3011 log_file = optarg;
3012 break;
3013 case QEMU_OPTION_DFILTER:
3014 qemu_set_dfilter_ranges(optarg, &error_fatal);
3015 break;
3016 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3017 case QEMU_OPTION_perfmap:
3018 perf_enable_perfmap();
3019 break;
3020 case QEMU_OPTION_jitdump:
3021 perf_enable_jitdump();
3022 break;
3023 #endif
3024 case QEMU_OPTION_seed:
3025 qemu_guest_random_seed_main(optarg, &error_fatal);
3026 break;
3027 case QEMU_OPTION_s:
3028 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3029 break;
3030 case QEMU_OPTION_gdb:
3031 add_device_config(DEV_GDB, optarg);
3032 break;
3033 case QEMU_OPTION_L:
3034 if (is_help_option(optarg)) {
3035 list_data_dirs = true;
3036 } else {
3037 qemu_add_data_dir(g_strdup(optarg));
3038 }
3039 break;
3040 case QEMU_OPTION_bios:
3041 qdict_put_str(machine_opts_dict, "firmware", optarg);
3042 break;
3043 case QEMU_OPTION_singlestep:
3044 opt_one_insn_per_tb = true;
3045 break;
3046 case QEMU_OPTION_S:
3047 autostart = 0;
3048 break;
3049 case QEMU_OPTION_k:
3050 keyboard_layout = optarg;
3051 break;
3052 case QEMU_OPTION_vga:
3053 vga_model = optarg;
3054 default_vga = 0;
3055 break;
3056 case QEMU_OPTION_g:
3057 {
3058 const char *p;
3059 int w, h, depth;
3060 p = optarg;
3061 w = strtol(p, (char **)&p, 10);
3062 if (w <= 0) {
3063 graphic_error:
3064 error_report("invalid resolution or depth");
3065 exit(1);
3066 }
3067 if (*p != 'x')
3068 goto graphic_error;
3069 p++;
3070 h = strtol(p, (char **)&p, 10);
3071 if (h <= 0)
3072 goto graphic_error;
3073 if (*p == 'x') {
3074 p++;
3075 depth = strtol(p, (char **)&p, 10);
3076 if (depth != 1 && depth != 2 && depth != 4 &&
3077 depth != 8 && depth != 15 && depth != 16 &&
3078 depth != 24 && depth != 32)
3079 goto graphic_error;
3080 } else if (*p == '\0') {
3081 depth = graphic_depth;
3082 } else {
3083 goto graphic_error;
3084 }
3085
3086 graphic_width = w;
3087 graphic_height = h;
3088 graphic_depth = depth;
3089 }
3090 break;
3091 case QEMU_OPTION_echr:
3092 {
3093 char *r;
3094 term_escape_char = strtol(optarg, &r, 0);
3095 if (r == optarg)
3096 printf("Bad argument to echr\n");
3097 break;
3098 }
3099 case QEMU_OPTION_monitor:
3100 default_monitor = 0;
3101 if (strncmp(optarg, "none", 4)) {
3102 monitor_parse(optarg, "readline", false);
3103 }
3104 break;
3105 case QEMU_OPTION_qmp:
3106 monitor_parse(optarg, "control", false);
3107 default_monitor = 0;
3108 break;
3109 case QEMU_OPTION_qmp_pretty:
3110 monitor_parse(optarg, "control", true);
3111 default_monitor = 0;
3112 break;
3113 case QEMU_OPTION_mon:
3114 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3115 true);
3116 if (!opts) {
3117 exit(1);
3118 }
3119 default_monitor = 0;
3120 break;
3121 case QEMU_OPTION_chardev:
3122 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3123 optarg, true);
3124 if (!opts) {
3125 exit(1);
3126 }
3127 break;
3128 case QEMU_OPTION_fsdev:
3129 olist = qemu_find_opts("fsdev");
3130 if (!olist) {
3131 error_report("fsdev support is disabled");
3132 exit(1);
3133 }
3134 opts = qemu_opts_parse_noisily(olist, optarg, true);
3135 if (!opts) {
3136 exit(1);
3137 }
3138 break;
3139 case QEMU_OPTION_virtfs: {
3140 QemuOpts *fsdev;
3141 QemuOpts *device;
3142 const char *writeout, *sock_fd, *socket, *path, *security_model,
3143 *multidevs;
3144
3145 olist = qemu_find_opts("virtfs");
3146 if (!olist) {
3147 error_report("virtfs support is disabled");
3148 exit(1);
3149 }
3150 opts = qemu_opts_parse_noisily(olist, optarg, true);
3151 if (!opts) {
3152 exit(1);
3153 }
3154
3155 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3156 qemu_opt_get(opts, "mount_tag") == NULL) {
3157 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3158 exit(1);
3159 }
3160 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3161 qemu_opts_id(opts) ?:
3162 qemu_opt_get(opts, "mount_tag"),
3163 1, NULL);
3164 if (!fsdev) {
3165 error_report("duplicate or invalid fsdev id: %s",
3166 qemu_opt_get(opts, "mount_tag"));
3167 exit(1);
3168 }
3169
3170 writeout = qemu_opt_get(opts, "writeout");
3171 if (writeout) {
3172 #ifdef CONFIG_SYNC_FILE_RANGE
3173 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3174 #else
3175 error_report("writeout=immediate not supported "
3176 "on this platform");
3177 exit(1);
3178 #endif
3179 }
3180 qemu_opt_set(fsdev, "fsdriver",
3181 qemu_opt_get(opts, "fsdriver"), &error_abort);
3182 path = qemu_opt_get(opts, "path");
3183 if (path) {
3184 qemu_opt_set(fsdev, "path", path, &error_abort);
3185 }
3186 security_model = qemu_opt_get(opts, "security_model");
3187 if (security_model) {
3188 qemu_opt_set(fsdev, "security_model", security_model,
3189 &error_abort);
3190 }
3191 socket = qemu_opt_get(opts, "socket");
3192 if (socket) {
3193 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3194 }
3195 sock_fd = qemu_opt_get(opts, "sock_fd");
3196 if (sock_fd) {
3197 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3198 }
3199
3200 qemu_opt_set_bool(fsdev, "readonly",
3201 qemu_opt_get_bool(opts, "readonly", 0),
3202 &error_abort);
3203 multidevs = qemu_opt_get(opts, "multidevs");
3204 if (multidevs) {
3205 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3206 }
3207 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3208 &error_abort);
3209 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3210 qemu_opt_set(device, "fsdev",
3211 qemu_opts_id(fsdev), &error_abort);
3212 qemu_opt_set(device, "mount_tag",
3213 qemu_opt_get(opts, "mount_tag"), &error_abort);
3214 break;
3215 }
3216 case QEMU_OPTION_serial:
3217 add_device_config(DEV_SERIAL, optarg);
3218 default_serial = 0;
3219 if (strncmp(optarg, "mon:", 4) == 0) {
3220 default_monitor = 0;
3221 }
3222 break;
3223 case QEMU_OPTION_action:
3224 olist = qemu_find_opts("action");
3225 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3226 exit(1);
3227 }
3228 break;
3229 case QEMU_OPTION_watchdog_action: {
3230 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3231 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3232 break;
3233 }
3234 case QEMU_OPTION_parallel:
3235 add_device_config(DEV_PARALLEL, optarg);
3236 default_parallel = 0;
3237 if (strncmp(optarg, "mon:", 4) == 0) {
3238 default_monitor = 0;
3239 }
3240 break;
3241 case QEMU_OPTION_debugcon:
3242 add_device_config(DEV_DEBUGCON, optarg);
3243 break;
3244 case QEMU_OPTION_loadvm:
3245 loadvm = optarg;
3246 break;
3247 case QEMU_OPTION_full_screen:
3248 dpy.has_full_screen = true;
3249 dpy.full_screen = true;
3250 break;
3251 case QEMU_OPTION_pidfile:
3252 pid_file = optarg;
3253 break;
3254 case QEMU_OPTION_win2k_hack:
3255 win2k_install_hack = 1;
3256 break;
3257 case QEMU_OPTION_acpitable:
3258 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3259 optarg, true);
3260 if (!opts) {
3261 exit(1);
3262 }
3263 acpi_table_add(opts, &error_fatal);
3264 break;
3265 case QEMU_OPTION_smbios:
3266 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3267 optarg, false);
3268 if (!opts) {
3269 exit(1);
3270 }
3271 smbios_entry_add(opts, &error_fatal);
3272 break;
3273 case QEMU_OPTION_fwcfg:
3274 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3275 optarg, true);
3276 if (opts == NULL) {
3277 exit(1);
3278 }
3279 break;
3280 case QEMU_OPTION_preconfig:
3281 preconfig_requested = true;
3282 break;
3283 case QEMU_OPTION_enable_kvm:
3284 qdict_put_str(machine_opts_dict, "accel", "kvm");
3285 break;
3286 case QEMU_OPTION_M:
3287 case QEMU_OPTION_machine:
3288 {
3289 bool help;
3290
3291 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3292 if (help) {
3293 machine_help_func(machine_opts_dict);
3294 exit(EXIT_SUCCESS);
3295 }
3296 break;
3297 }
3298 case QEMU_OPTION_accel:
3299 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3300 optarg, true);
3301 optarg = qemu_opt_get(accel_opts, "accel");
3302 if (!optarg || is_help_option(optarg)) {
3303 printf("Accelerators supported in QEMU binary:\n");
3304 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3305 false);
3306 for (el = accel_list; el; el = el->next) {
3307 gchar *typename = g_strdup(object_class_get_name(
3308 OBJECT_CLASS(el->data)));
3309 /* omit qtest which is used for tests only */
3310 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3311 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3312 gchar **optname = g_strsplit(typename,
3313 ACCEL_CLASS_SUFFIX, 0);
3314 printf("%s\n", optname[0]);
3315 g_strfreev(optname);
3316 }
3317 g_free(typename);
3318 }
3319 g_slist_free(accel_list);
3320 exit(0);
3321 }
3322 break;
3323 case QEMU_OPTION_usb:
3324 qdict_put_str(machine_opts_dict, "usb", "on");
3325 break;
3326 case QEMU_OPTION_usbdevice:
3327 qdict_put_str(machine_opts_dict, "usb", "on");
3328 add_device_config(DEV_USB, optarg);
3329 break;
3330 case QEMU_OPTION_device:
3331 if (optarg[0] == '{') {
3332 QObject *obj = qobject_from_json(optarg, &error_fatal);
3333 DeviceOption *opt = g_new0(DeviceOption, 1);
3334 opt->opts = qobject_to(QDict, obj);
3335 loc_save(&opt->loc);
3336 assert(opt->opts != NULL);
3337 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3338 } else {
3339 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3340 optarg, true)) {
3341 exit(1);
3342 }
3343 }
3344 break;
3345 case QEMU_OPTION_smp:
3346 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3347 "smp", optarg);
3348 break;
3349 #ifdef CONFIG_VNC
3350 case QEMU_OPTION_vnc:
3351 vnc_parse(optarg);
3352 display_remote++;
3353 break;
3354 #endif
3355 case QEMU_OPTION_no_acpi:
3356 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3357 qdict_put_str(machine_opts_dict, "acpi", "off");
3358 break;
3359 case QEMU_OPTION_no_hpet:
3360 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3361 qdict_put_str(machine_opts_dict, "hpet", "off");
3362 break;
3363 case QEMU_OPTION_no_reboot:
3364 olist = qemu_find_opts("action");
3365 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3366 break;
3367 case QEMU_OPTION_no_shutdown:
3368 olist = qemu_find_opts("action");
3369 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3370 break;
3371 case QEMU_OPTION_uuid:
3372 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3373 error_report("failed to parse UUID string: wrong format");
3374 exit(1);
3375 }
3376 qemu_uuid_set = true;
3377 break;
3378 case QEMU_OPTION_option_rom:
3379 if (nb_option_roms >= MAX_OPTION_ROMS) {
3380 error_report("too many option ROMs");
3381 exit(1);
3382 }
3383 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3384 optarg, true);
3385 if (!opts) {
3386 exit(1);
3387 }
3388 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3389 option_rom[nb_option_roms].bootindex =
3390 qemu_opt_get_number(opts, "bootindex", -1);
3391 if (!option_rom[nb_option_roms].name) {
3392 error_report("Option ROM file is not specified");
3393 exit(1);
3394 }
3395 nb_option_roms++;
3396 break;
3397 case QEMU_OPTION_semihosting:
3398 qemu_semihosting_enable();
3399 break;
3400 case QEMU_OPTION_semihosting_config:
3401 if (qemu_semihosting_config_options(optarg) != 0) {
3402 exit(1);
3403 }
3404 break;
3405 case QEMU_OPTION_name:
3406 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3407 optarg, true);
3408 if (!opts) {
3409 exit(1);
3410 }
3411 /* Capture guest name if -msg guest-name is used later */
3412 error_guest_name = qemu_opt_get(opts, "guest");
3413 break;
3414 case QEMU_OPTION_prom_env:
3415 if (nb_prom_envs >= MAX_PROM_ENVS) {
3416 error_report("too many prom variables");
3417 exit(1);
3418 }
3419 prom_envs[nb_prom_envs] = optarg;
3420 nb_prom_envs++;
3421 break;
3422 case QEMU_OPTION_old_param:
3423 old_param = 1;
3424 break;
3425 case QEMU_OPTION_rtc:
3426 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3427 false);
3428 if (!opts) {
3429 exit(1);
3430 }
3431 break;
3432 case QEMU_OPTION_icount:
3433 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3434 optarg, true);
3435 if (!icount_opts) {
3436 exit(1);
3437 }
3438 break;
3439 case QEMU_OPTION_incoming:
3440 if (!incoming) {
3441 runstate_set(RUN_STATE_INMIGRATE);
3442 }
3443 incoming = optarg;
3444 break;
3445 case QEMU_OPTION_only_migratable:
3446 only_migratable = 1;
3447 break;
3448 case QEMU_OPTION_nodefaults:
3449 has_defaults = 0;
3450 break;
3451 case QEMU_OPTION_xen_domid:
3452 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3453 error_report("Option not supported for this target");
3454 exit(1);
3455 }
3456 xen_domid = atoi(optarg);
3457 break;
3458 case QEMU_OPTION_xen_attach:
3459 if (!(accel_find("xen"))) {
3460 error_report("Option not supported for this target");
3461 exit(1);
3462 }
3463 xen_mode = XEN_ATTACH;
3464 break;
3465 case QEMU_OPTION_xen_domid_restrict:
3466 if (!(accel_find("xen"))) {
3467 error_report("Option not supported for this target");
3468 exit(1);
3469 }
3470 xen_domid_restrict = true;
3471 break;
3472 case QEMU_OPTION_trace:
3473 trace_opt_parse(optarg);
3474 break;
3475 case QEMU_OPTION_plugin:
3476 qemu_plugin_opt_parse(optarg, &plugin_list);
3477 break;
3478 case QEMU_OPTION_readconfig:
3479 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3480 break;
3481 #ifdef CONFIG_SPICE
3482 case QEMU_OPTION_spice:
3483 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false);
3484 if (!opts) {
3485 exit(1);
3486 }
3487 display_remote++;
3488 break;
3489 #endif
3490 case QEMU_OPTION_qtest:
3491 qtest_chrdev = optarg;
3492 break;
3493 case QEMU_OPTION_qtest_log:
3494 qtest_log = optarg;
3495 break;
3496 case QEMU_OPTION_sandbox:
3497 olist = qemu_find_opts("sandbox");
3498 if (!olist) {
3499 #ifndef CONFIG_SECCOMP
3500 error_report("-sandbox support is not enabled "
3501 "in this QEMU binary");
3502 #endif
3503 exit(1);
3504 }
3505
3506 opts = qemu_opts_parse_noisily(olist, optarg, true);
3507 if (!opts) {
3508 exit(1);
3509 }
3510 break;
3511 case QEMU_OPTION_add_fd:
3512 #ifndef _WIN32
3513 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3514 optarg, false);
3515 if (!opts) {
3516 exit(1);
3517 }
3518 #else
3519 error_report("File descriptor passing is disabled on this "
3520 "platform");
3521 exit(1);
3522 #endif
3523 break;
3524 case QEMU_OPTION_object:
3525 object_option_parse(optarg);
3526 break;
3527 case QEMU_OPTION_overcommit:
3528 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3529 optarg, false);
3530 if (!opts) {
3531 exit(1);
3532 }
3533 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3534 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3535 break;
3536 case QEMU_OPTION_compat:
3537 {
3538 CompatPolicy *opts_policy;
3539 Visitor *v;
3540
3541 v = qobject_input_visitor_new_str(optarg, NULL,
3542 &error_fatal);
3543
3544 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3545 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3546
3547 qapi_free_CompatPolicy(opts_policy);
3548 visit_free(v);
3549 break;
3550 }
3551 case QEMU_OPTION_msg:
3552 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3553 false);
3554 if (!opts) {
3555 exit(1);
3556 }
3557 configure_msg(opts);
3558 break;
3559 case QEMU_OPTION_dump_vmstate:
3560 if (vmstate_dump_file) {
3561 error_report("only one '-dump-vmstate' "
3562 "option may be given");
3563 exit(1);
3564 }
3565 vmstate_dump_file = fopen(optarg, "w");
3566 if (vmstate_dump_file == NULL) {
3567 error_report("open %s: %s", optarg, strerror(errno));
3568 exit(1);
3569 }
3570 break;
3571 case QEMU_OPTION_enable_sync_profile:
3572 qsp_enable();
3573 break;
3574 case QEMU_OPTION_nouserconfig:
3575 /* Nothing to be parsed here. Especially, do not error out below. */
3576 break;
3577 #if defined(CONFIG_POSIX)
3578 case QEMU_OPTION_runas:
3579 if (!os_set_runas(optarg)) {
3580 error_report("User \"%s\" doesn't exist"
3581 " (and is not <uid>:<gid>)",
3582 optarg);
3583 exit(1);
3584 }
3585 break;
3586 case QEMU_OPTION_chroot:
3587 warn_report("option is deprecated,"
3588 " use '-run-with chroot=...' instead");
3589 os_set_chroot(optarg);
3590 break;
3591 case QEMU_OPTION_daemonize:
3592 os_set_daemonize(true);
3593 break;
3594 #if defined(CONFIG_LINUX)
3595 /* deprecated */
3596 case QEMU_OPTION_asyncteardown:
3597 init_async_teardown();
3598 break;
3599 #endif
3600 case QEMU_OPTION_run_with: {
3601 const char *str;
3602 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3603 optarg, false);
3604 if (!opts) {
3605 exit(1);
3606 }
3607 #if defined(CONFIG_LINUX)
3608 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3609 init_async_teardown();
3610 }
3611 #endif
3612 str = qemu_opt_get(opts, "chroot");
3613 if (str) {
3614 os_set_chroot(str);
3615 }
3616 break;
3617 }
3618 #endif /* CONFIG_POSIX */
3619
3620 default:
3621 error_report("Option not supported in this build");
3622 exit(1);
3623 }
3624 }
3625 }
3626 /*
3627 * Clear error location left behind by the loop.
3628 * Best done right after the loop. Do not insert code here!
3629 */
3630 loc_set_none();
3631
3632 qemu_validate_options(machine_opts_dict);
3633 qemu_process_sugar_options();
3634
3635 /*
3636 * These options affect everything else and should be processed
3637 * before daemonizing.
3638 */
3639 qemu_process_early_options();
3640
3641 qemu_process_help_options();
3642 qemu_maybe_daemonize(pid_file);
3643
3644 /*
3645 * The trace backend must be initialized after daemonizing.
3646 * trace_init_backends() will call st_init(), which will create the
3647 * trace thread in the parent, and also register st_flush_trace_buffer()
3648 * in atexit(). This function will force the parent to wait for the
3649 * writeout thread to finish, which will not occur, and the parent
3650 * process will be left in the host.
3651 */
3652 if (!trace_init_backends()) {
3653 exit(1);
3654 }
3655 trace_init_file();
3656
3657 qemu_init_main_loop(&error_fatal);
3658 cpu_timers_init();
3659
3660 user_register_global_props();
3661 replay_configure(icount_opts);
3662
3663 configure_rtc(qemu_find_opts_singleton("rtc"));
3664
3665 /* Transfer QemuOpts options into machine options */
3666 parse_memory_options();
3667
3668 qemu_create_machine(machine_opts_dict);
3669
3670 suspend_mux_open();
3671
3672 qemu_disable_default_devices();
3673 qemu_setup_display();
3674 qemu_create_default_devices();
3675 qemu_create_early_backends();
3676
3677 qemu_apply_legacy_machine_options(machine_opts_dict);
3678 qemu_apply_machine_options(machine_opts_dict);
3679 qobject_unref(machine_opts_dict);
3680 phase_advance(PHASE_MACHINE_CREATED);
3681
3682 /*
3683 * Note: uses machine properties such as kernel-irqchip, must run
3684 * after qemu_apply_machine_options.
3685 */
3686 configure_accelerators(argv[0]);
3687 phase_advance(PHASE_ACCEL_CREATED);
3688
3689 /*
3690 * Beware, QOM objects created before this point miss global and
3691 * compat properties.
3692 *
3693 * Global properties get set up by qdev_prop_register_global(),
3694 * called from user_register_global_props(), and certain option
3695 * desugaring. Also in CPU feature desugaring (buried in
3696 * parse_cpu_option()), which happens below this point, but may
3697 * only target the CPU type, which can only be created after
3698 * parse_cpu_option() returned the type.
3699 *
3700 * Machine compat properties: object_set_machine_compat_props().
3701 * Accelerator compat props: object_set_accelerator_compat_props(),
3702 * called from do_configure_accelerator().
3703 */
3704
3705 machine_class = MACHINE_GET_CLASS(current_machine);
3706 if (!qtest_enabled() && machine_class->deprecation_reason) {
3707 warn_report("Machine type '%s' is deprecated: %s",
3708 machine_class->name, machine_class->deprecation_reason);
3709 }
3710
3711 /*
3712 * Create backends before creating migration objects, so that it can
3713 * check against compatibilities on the backend memories (e.g. postcopy
3714 * over memory-backend-file objects).
3715 */
3716 qemu_create_late_backends();
3717
3718 /*
3719 * Note: creates a QOM object, must run only after global and
3720 * compat properties have been set up.
3721 */
3722 migration_object_init();
3723
3724 /* parse features once if machine provides default cpu_type */
3725 current_machine->cpu_type = machine_class->default_cpu_type;
3726 if (cpu_option) {
3727 current_machine->cpu_type = parse_cpu_option(cpu_option);
3728 }
3729 /* NB: for machine none cpu_type could STILL be NULL here! */
3730
3731 qemu_resolve_machine_memdev();
3732 parse_numa_opts(current_machine);
3733
3734 if (vmstate_dump_file) {
3735 /* dump and exit */
3736 module_load_qom_all();
3737 dump_vmstate_json_to_file(vmstate_dump_file);
3738 exit(0);
3739 }
3740
3741 if (!preconfig_requested) {
3742 qmp_x_exit_preconfig(&error_fatal);
3743 }
3744 qemu_init_displays();
3745 accel_setup_post(current_machine);
3746 os_setup_post();
3747 resume_mux_open();
3748 }
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