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MAINTAINERS: Add the CAN documentation file to the CAN section
[qemu/kevin.git] / system / vl.c
blob8c803228f4ca5a91f47121b9ecb09a5b96b38f43
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 const 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 const char *opts;
1099
1100 if (is_help_option(p)) {
1101 qemu_display_help();
1102 exit(0);
1103 }
1104
1105 if (strstart(p, "vnc", &opts)) {
1106 /*
1107 * vnc isn't a (local) DisplayType but a protocol for remote
1108 * display access.
1109 */
1110 if (*opts == '=') {
1111 vnc_parse(opts + 1);
1112 } else {
1113 error_report("VNC requires a display argument vnc=<display>");
1114 exit(1);
1115 }
1116 } else {
1117 parse_display_qapi(p);
1118 }
1119 }
1120
1121 static inline bool nonempty_str(const char *str)
1122 {
1123 return str && *str;
1124 }
1125
1126 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1127 {
1128 gchar *buf;
1129 size_t size;
1130 const char *name, *file, *str, *gen_id;
1131 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1132
1133 if (fw_cfg == NULL) {
1134 error_setg(errp, "fw_cfg device not available");
1135 return -1;
1136 }
1137 name = qemu_opt_get(opts, "name");
1138 file = qemu_opt_get(opts, "file");
1139 str = qemu_opt_get(opts, "string");
1140 gen_id = qemu_opt_get(opts, "gen_id");
1141
1142 /* we need the name, and exactly one of: file, content string, gen_id */
1143 if (!nonempty_str(name) ||
1144 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1145 error_setg(errp, "name, plus exactly one of file,"
1146 " string and gen_id, are needed");
1147 return -1;
1148 }
1149 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1150 error_setg(errp, "name too long (max. %d char)",
1151 FW_CFG_MAX_FILE_PATH - 1);
1152 return -1;
1153 }
1154 if (nonempty_str(gen_id)) {
1155 /*
1156 * In this particular case where the content is populated
1157 * internally, the "etc/" namespace protection is relaxed,
1158 * so do not emit a warning.
1159 */
1160 } else if (strncmp(name, "opt/", 4) != 0) {
1161 warn_report("externally provided fw_cfg item names "
1162 "should be prefixed with \"opt/\"");
1163 }
1164 if (nonempty_str(str)) {
1165 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1166 buf = g_memdup(str, size);
1167 } else if (nonempty_str(gen_id)) {
1168 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1169 return -1;
1170 }
1171 return 0;
1172 } else {
1173 GError *err = NULL;
1174 if (!g_file_get_contents(file, &buf, &size, &err)) {
1175 error_setg(errp, "can't load %s: %s", file, err->message);
1176 g_error_free(err);
1177 return -1;
1178 }
1179 }
1180 /* For legacy, keep user files in a specific global order. */
1181 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1182 fw_cfg_add_file(fw_cfg, name, buf, size);
1183 fw_cfg_reset_order_override(fw_cfg);
1184 return 0;
1185 }
1186
1187 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1188 {
1189 return qdev_device_help(opts);
1190 }
1191
1192 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1193 {
1194 DeviceState *dev;
1195
1196 dev = qdev_device_add(opts, errp);
1197 if (!dev && *errp) {
1198 error_report_err(*errp);
1199 return -1;
1200 } else if (dev) {
1201 object_unref(OBJECT(dev));
1202 }
1203 return 0;
1204 }
1205
1206 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1207 {
1208 Error *local_err = NULL;
1209
1210 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1211 if (local_err) {
1212 error_propagate(errp, local_err);
1213 return -1;
1214 }
1215 exit(0);
1216 }
1217 return 0;
1218 }
1219
1220 #ifdef CONFIG_VIRTFS
1221 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1222 {
1223 return qemu_fsdev_add(opts, errp);
1224 }
1225 #endif
1226
1227 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1228 {
1229 return monitor_init_opts(opts, errp);
1230 }
1231
1232 static void monitor_parse(const char *str, const char *mode, bool pretty)
1233 {
1234 static int monitor_device_index = 0;
1235 QemuOpts *opts;
1236 const char *p;
1237 char label[32];
1238
1239 if (strstart(str, "chardev:", &p)) {
1240 snprintf(label, sizeof(label), "%s", p);
1241 } else {
1242 snprintf(label, sizeof(label), "compat_monitor%d",
1243 monitor_device_index);
1244 opts = qemu_chr_parse_compat(label, str, true);
1245 if (!opts) {
1246 error_report("parse error: %s", str);
1247 exit(1);
1248 }
1249 }
1250
1251 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1252 qemu_opt_set(opts, "mode", mode, &error_abort);
1253 qemu_opt_set(opts, "chardev", label, &error_abort);
1254 if (!strcmp(mode, "control")) {
1255 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1256 } else {
1257 assert(pretty == false);
1258 }
1259 monitor_device_index++;
1260 }
1261
1262 struct device_config {
1263 enum {
1264 DEV_USB, /* -usbdevice */
1265 DEV_SERIAL, /* -serial */
1266 DEV_PARALLEL, /* -parallel */
1267 DEV_DEBUGCON, /* -debugcon */
1268 DEV_GDB, /* -gdb, -s */
1269 DEV_SCLP, /* s390 sclp */
1270 } type;
1271 const char *cmdline;
1272 Location loc;
1273 QTAILQ_ENTRY(device_config) next;
1274 };
1275
1276 static QTAILQ_HEAD(, device_config) device_configs =
1277 QTAILQ_HEAD_INITIALIZER(device_configs);
1278
1279 static void add_device_config(int type, const char *cmdline)
1280 {
1281 struct device_config *conf;
1282
1283 conf = g_malloc0(sizeof(*conf));
1284 conf->type = type;
1285 conf->cmdline = cmdline;
1286 loc_save(&conf->loc);
1287 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1288 }
1289
1290 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1291 {
1292 struct device_config *conf;
1293 int rc;
1294
1295 QTAILQ_FOREACH(conf, &device_configs, next) {
1296 if (conf->type != type)
1297 continue;
1298 loc_push_restore(&conf->loc);
1299 rc = func(conf->cmdline);
1300 loc_pop(&conf->loc);
1301 if (rc) {
1302 return rc;
1303 }
1304 }
1305 return 0;
1306 }
1307
1308 static void qemu_disable_default_devices(void)
1309 {
1310 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1311
1312 default_driver_check_json();
1313 qemu_opts_foreach(qemu_find_opts("device"),
1314 default_driver_check, NULL, NULL);
1315 qemu_opts_foreach(qemu_find_opts("global"),
1316 default_driver_check, NULL, NULL);
1317
1318 if (!vga_model && !default_vga) {
1319 vga_interface_type = VGA_DEVICE;
1320 vga_interface_created = true;
1321 }
1322 if (!has_defaults || machine_class->no_serial) {
1323 default_serial = 0;
1324 }
1325 if (!has_defaults || machine_class->no_parallel) {
1326 default_parallel = 0;
1327 }
1328 if (!has_defaults || machine_class->no_floppy) {
1329 default_floppy = 0;
1330 }
1331 if (!has_defaults || machine_class->no_cdrom) {
1332 default_cdrom = 0;
1333 }
1334 if (!has_defaults || machine_class->no_sdcard) {
1335 default_sdcard = 0;
1336 }
1337 if (!has_defaults) {
1338 default_audio = 0;
1339 default_monitor = 0;
1340 default_net = 0;
1341 default_vga = 0;
1342 } else {
1343 if (default_net && machine_class->default_nic &&
1344 !module_object_class_by_name(machine_class->default_nic)) {
1345 warn_report("Default NIC '%s' is not available in this binary",
1346 machine_class->default_nic);
1347 default_net = 0;
1348 }
1349 }
1350 }
1351
1352 static void qemu_create_default_devices(void)
1353 {
1354 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1355
1356 if (is_daemonized()) {
1357 /* According to documentation and historically, -nographic redirects
1358 * serial port, parallel port and monitor to stdio, which does not work
1359 * with -daemonize. We can redirect these to null instead, but since
1360 * -nographic is legacy, let's just error out.
1361 * We disallow -nographic only if all other ports are not redirected
1362 * explicitly, to not break existing legacy setups which uses
1363 * -nographic _and_ redirects all ports explicitly - this is valid
1364 * usage, -nographic is just a no-op in this case.
1365 */
1366 if (nographic
1367 && (default_parallel || default_serial || default_monitor)) {
1368 error_report("-nographic cannot be used with -daemonize");
1369 exit(1);
1370 }
1371 }
1372
1373 if (nographic) {
1374 if (default_parallel)
1375 add_device_config(DEV_PARALLEL, "null");
1376 if (default_serial && default_monitor) {
1377 add_device_config(DEV_SERIAL, "mon:stdio");
1378 } else {
1379 if (default_serial)
1380 add_device_config(DEV_SERIAL, "stdio");
1381 if (default_monitor)
1382 monitor_parse("stdio", "readline", false);
1383 }
1384 } else {
1385 if (default_serial)
1386 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1387 if (default_parallel)
1388 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1389 if (default_monitor)
1390 monitor_parse("vc:80Cx24C", "readline", false);
1391 }
1392
1393 if (default_net) {
1394 QemuOptsList *net = qemu_find_opts("net");
1395 qemu_opts_parse(net, "nic", true, &error_abort);
1396 #ifdef CONFIG_SLIRP
1397 qemu_opts_parse(net, "user", true, &error_abort);
1398 #endif
1399 }
1400
1401 #if defined(CONFIG_VNC)
1402 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
1403 display_remote++;
1404 }
1405 #endif
1406 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1407 if (!qemu_display_find_default(&dpy)) {
1408 dpy.type = DISPLAY_TYPE_NONE;
1409 #if defined(CONFIG_VNC)
1410 vnc_parse("localhost:0,to=99,id=default");
1411 #endif
1412 }
1413 }
1414 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1415 dpy.type = DISPLAY_TYPE_NONE;
1416 }
1417
1418 /* If no default VGA is requested, the default is "none". */
1419 if (default_vga) {
1420 vga_model = get_default_vga_model(machine_class);
1421 }
1422 if (vga_model) {
1423 select_vgahw(machine_class, vga_model);
1424 }
1425 }
1426
1427 static int serial_parse(const char *devname)
1428 {
1429 int index = num_serial_hds;
1430 char label[32];
1431
1432 if (strcmp(devname, "none") == 0)
1433 return 0;
1434 snprintf(label, sizeof(label), "serial%d", index);
1435 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1436
1437 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1438 if (!serial_hds[index]) {
1439 error_report("could not connect serial device"
1440 " to character backend '%s'", devname);
1441 return -1;
1442 }
1443 num_serial_hds++;
1444 return 0;
1445 }
1446
1447 Chardev *serial_hd(int i)
1448 {
1449 assert(i >= 0);
1450 if (i < num_serial_hds) {
1451 return serial_hds[i];
1452 }
1453 return NULL;
1454 }
1455
1456 static int parallel_parse(const char *devname)
1457 {
1458 static int index = 0;
1459 char label[32];
1460
1461 if (strcmp(devname, "none") == 0)
1462 return 0;
1463 if (index == MAX_PARALLEL_PORTS) {
1464 error_report("too many parallel ports");
1465 exit(1);
1466 }
1467 snprintf(label, sizeof(label), "parallel%d", index);
1468 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1469 if (!parallel_hds[index]) {
1470 error_report("could not connect parallel device"
1471 " to character backend '%s'", devname);
1472 return -1;
1473 }
1474 index++;
1475 return 0;
1476 }
1477
1478 static int debugcon_parse(const char *devname)
1479 {
1480 QemuOpts *opts;
1481
1482 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1483 error_report("invalid character backend '%s'", devname);
1484 exit(1);
1485 }
1486 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1487 if (!opts) {
1488 error_report("already have a debugcon device");
1489 exit(1);
1490 }
1491 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1492 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1493 return 0;
1494 }
1495
1496 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1497 {
1498 const MachineClass *mc1 = a, *mc2 = b;
1499 int res;
1500
1501 if (mc1->family == NULL) {
1502 if (mc2->family == NULL) {
1503 /* Compare standalone machine types against each other; they sort
1504 * in increasing order.
1505 */
1506 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1507 object_class_get_name(OBJECT_CLASS(mc2)));
1508 }
1509
1510 /* Standalone machine types sort after families. */
1511 return 1;
1512 }
1513
1514 if (mc2->family == NULL) {
1515 /* Families sort before standalone machine types. */
1516 return -1;
1517 }
1518
1519 /* Families sort between each other alphabetically increasingly. */
1520 res = strcmp(mc1->family, mc2->family);
1521 if (res != 0) {
1522 return res;
1523 }
1524
1525 /* Within the same family, machine types sort in decreasing order. */
1526 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1527 object_class_get_name(OBJECT_CLASS(mc1)));
1528 }
1529
1530 static void machine_help_func(const QDict *qdict)
1531 {
1532 g_autoptr(GSList) machines = NULL;
1533 GSList *el;
1534 const char *type = qdict_get_try_str(qdict, "type");
1535
1536 machines = object_class_get_list(TYPE_MACHINE, false);
1537 if (type) {
1538 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1539 if (machine_class) {
1540 type_print_class_properties(object_class_get_name(machine_class));
1541 return;
1542 }
1543 }
1544
1545 printf("Supported machines are:\n");
1546 machines = g_slist_sort(machines, machine_class_cmp);
1547 for (el = machines; el; el = el->next) {
1548 MachineClass *mc = el->data;
1549 if (mc->alias) {
1550 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1551 }
1552 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1553 mc->is_default ? " (default)" : "",
1554 mc->deprecation_reason ? " (deprecated)" : "");
1555 }
1556 }
1557
1558 static void
1559 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1560 {
1561 QDict *opts;
1562
1563 opts = qdict_new();
1564 /* Preserve the caller's reference to prop. */
1565 qobject_ref(prop);
1566 qdict_put(opts, propname, prop);
1567 keyval_merge(machine_opts_dict, opts, errp);
1568 qobject_unref(opts);
1569 }
1570
1571 static void
1572 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1573 const char *arg)
1574 {
1575 QDict *prop = NULL;
1576 bool help = false;
1577
1578 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1579 if (help) {
1580 qemu_opts_print_help(opts_list, true);
1581 exit(0);
1582 }
1583 machine_merge_property(propname, prop, &error_fatal);
1584 qobject_unref(prop);
1585 }
1586
1587 static const char *pid_file;
1588 struct UnlinkPidfileNotifier {
1589 Notifier notifier;
1590 char *pid_file_realpath;
1591 };
1592 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1593
1594 static void qemu_unlink_pidfile(Notifier *n, void *data)
1595 {
1596 struct UnlinkPidfileNotifier *upn;
1597
1598 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1599 unlink(upn->pid_file_realpath);
1600 }
1601
1602 static const QEMUOption *lookup_opt(int argc, char **argv,
1603 const char **poptarg, int *poptind)
1604 {
1605 const QEMUOption *popt;
1606 int optind = *poptind;
1607 char *r = argv[optind];
1608 const char *optarg;
1609
1610 loc_set_cmdline(argv, optind, 1);
1611 optind++;
1612 /* Treat --foo the same as -foo. */
1613 if (r[1] == '-')
1614 r++;
1615 popt = qemu_options;
1616 for(;;) {
1617 if (!popt->name) {
1618 error_report("invalid option");
1619 exit(1);
1620 }
1621 if (!strcmp(popt->name, r + 1))
1622 break;
1623 popt++;
1624 }
1625 if (popt->flags & HAS_ARG) {
1626 if (optind >= argc) {
1627 error_report("requires an argument");
1628 exit(1);
1629 }
1630 optarg = argv[optind++];
1631 loc_set_cmdline(argv, optind - 2, 2);
1632 } else {
1633 optarg = NULL;
1634 }
1635
1636 *poptarg = optarg;
1637 *poptind = optind;
1638
1639 return popt;
1640 }
1641
1642 static MachineClass *select_machine(QDict *qdict, Error **errp)
1643 {
1644 const char *machine_type = qdict_get_try_str(qdict, "type");
1645 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1646 MachineClass *machine_class;
1647 Error *local_err = NULL;
1648
1649 if (machine_type) {
1650 machine_class = find_machine(machine_type, machines);
1651 qdict_del(qdict, "type");
1652 if (!machine_class) {
1653 error_setg(&local_err, "unsupported machine type");
1654 }
1655 } else {
1656 machine_class = find_default_machine(machines);
1657 if (!machine_class) {
1658 error_setg(&local_err, "No machine specified, and there is no default");
1659 }
1660 }
1661
1662 g_slist_free(machines);
1663 if (local_err) {
1664 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1665 error_propagate(errp, local_err);
1666 }
1667 return machine_class;
1668 }
1669
1670 static int object_parse_property_opt(Object *obj,
1671 const char *name, const char *value,
1672 const char *skip, Error **errp)
1673 {
1674 if (g_str_equal(name, skip)) {
1675 return 0;
1676 }
1677
1678 if (!object_property_parse(obj, name, value, errp)) {
1679 return -1;
1680 }
1681
1682 return 0;
1683 }
1684
1685 /* *Non*recursively replace underscores with dashes in QDict keys. */
1686 static void keyval_dashify(QDict *qdict, Error **errp)
1687 {
1688 const QDictEntry *ent, *next;
1689 char *p;
1690
1691 for (ent = qdict_first(qdict); ent; ent = next) {
1692 g_autofree char *new_key = NULL;
1693
1694 next = qdict_next(qdict, ent);
1695 if (!strchr(ent->key, '_')) {
1696 continue;
1697 }
1698 new_key = g_strdup(ent->key);
1699 for (p = new_key; *p; p++) {
1700 if (*p == '_') {
1701 *p = '-';
1702 }
1703 }
1704 if (qdict_haskey(qdict, new_key)) {
1705 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1706 return;
1707 }
1708 qobject_ref(ent->value);
1709 qdict_put_obj(qdict, new_key, ent->value);
1710 qdict_del(qdict, ent->key);
1711 }
1712 }
1713
1714 static void qemu_apply_legacy_machine_options(QDict *qdict)
1715 {
1716 const char *value;
1717 QObject *prop;
1718
1719 keyval_dashify(qdict, &error_fatal);
1720
1721 /* Legacy options do not correspond to MachineState properties. */
1722 value = qdict_get_try_str(qdict, "accel");
1723 if (value) {
1724 accelerators = g_strdup(value);
1725 qdict_del(qdict, "accel");
1726 }
1727
1728 value = qdict_get_try_str(qdict, "igd-passthru");
1729 if (value) {
1730 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1731 false);
1732 qdict_del(qdict, "igd-passthru");
1733 }
1734
1735 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1736 if (value) {
1737 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1738 false);
1739 qdict_del(qdict, "kvm-shadow-mem");
1740 }
1741
1742 value = qdict_get_try_str(qdict, "kernel-irqchip");
1743 if (value) {
1744 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1745 false);
1746 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1747 false);
1748 qdict_del(qdict, "kernel-irqchip");
1749 }
1750
1751 value = qdict_get_try_str(qdict, "memory-backend");
1752 if (value) {
1753 if (mem_path) {
1754 error_report("'-mem-path' can't be used together with"
1755 "'-machine memory-backend'");
1756 exit(EXIT_FAILURE);
1757 }
1758
1759 /* Resolved later. */
1760 ram_memdev_id = g_strdup(value);
1761 qdict_del(qdict, "memory-backend");
1762 }
1763
1764 prop = qdict_get(qdict, "memory");
1765 if (prop) {
1766 have_custom_ram_size =
1767 qobject_type(prop) == QTYPE_QDICT &&
1768 qdict_haskey(qobject_to(QDict, prop), "size");
1769 }
1770 }
1771
1772 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1773 {
1774 ObjectOption *opt, *next;
1775
1776 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1777 const char *type = ObjectType_str(opt->opts->qom_type);
1778 if (type_opt_predicate(type)) {
1779 user_creatable_add_qapi(opt->opts, &error_fatal);
1780 qapi_free_ObjectOptions(opt->opts);
1781 QTAILQ_REMOVE(&object_opts, opt, next);
1782 g_free(opt);
1783 }
1784 }
1785 }
1786
1787 static void object_option_add_visitor(Visitor *v)
1788 {
1789 ObjectOption *opt = g_new0(ObjectOption, 1);
1790 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1791 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1792 }
1793
1794 static void object_option_parse(const char *str)
1795 {
1796 QemuOpts *opts;
1797 const char *type;
1798 Visitor *v;
1799
1800 if (str[0] == '{') {
1801 QObject *obj = qobject_from_json(str, &error_fatal);
1802
1803 v = qobject_input_visitor_new(obj);
1804 qobject_unref(obj);
1805 } else {
1806 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1807 str, true);
1808 if (!opts) {
1809 exit(1);
1810 }
1811
1812 type = qemu_opt_get(opts, "qom-type");
1813 if (!type) {
1814 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1815 }
1816 if (user_creatable_print_help(type, opts)) {
1817 exit(0);
1818 }
1819
1820 v = opts_visitor_new(opts);
1821 }
1822
1823 object_option_add_visitor(v);
1824 visit_free(v);
1825 }
1826
1827 /*
1828 * Very early object creation, before the sandbox options have been activated.
1829 */
1830 static bool object_create_pre_sandbox(const char *type)
1831 {
1832 /*
1833 * Objects should in general not get initialized "too early" without
1834 * a reason. If you add one, state the reason in a comment!
1835 */
1836
1837 /*
1838 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1839 * affinity of threads.
1840 */
1841 if (g_str_equal(type, "thread-context")) {
1842 return true;
1843 }
1844
1845 return false;
1846 }
1847
1848 /*
1849 * Initial object creation happens before all other
1850 * QEMU data types are created. The majority of objects
1851 * can be created at this point. The rng-egd object
1852 * cannot be created here, as it depends on the chardev
1853 * already existing.
1854 */
1855 static bool object_create_early(const char *type)
1856 {
1857 /*
1858 * Objects should not be made "delayed" without a reason. If you
1859 * add one, state the reason in a comment!
1860 */
1861
1862 /* Reason: already created. */
1863 if (object_create_pre_sandbox(type)) {
1864 return false;
1865 }
1866
1867 /* Reason: property "chardev" */
1868 if (g_str_equal(type, "rng-egd") ||
1869 g_str_equal(type, "qtest")) {
1870 return false;
1871 }
1872
1873 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1874 /* Reason: cryptodev-vhost-user property "chardev" */
1875 if (g_str_equal(type, "cryptodev-vhost-user")) {
1876 return false;
1877 }
1878 #endif
1879
1880 /* Reason: vhost-user-blk-server property "node-name" */
1881 if (g_str_equal(type, "vhost-user-blk-server")) {
1882 return false;
1883 }
1884 /*
1885 * Reason: filter-* property "netdev" etc.
1886 */
1887 if (g_str_equal(type, "filter-buffer") ||
1888 g_str_equal(type, "filter-dump") ||
1889 g_str_equal(type, "filter-mirror") ||
1890 g_str_equal(type, "filter-redirector") ||
1891 g_str_equal(type, "colo-compare") ||
1892 g_str_equal(type, "filter-rewriter") ||
1893 g_str_equal(type, "filter-replay")) {
1894 return false;
1895 }
1896
1897 /*
1898 * Allocation of large amounts of memory may delay
1899 * chardev initialization for too long, and trigger timeouts
1900 * on software that waits for a monitor socket to be created
1901 * (e.g. libvirt).
1902 */
1903 if (g_str_has_prefix(type, "memory-backend-")) {
1904 return false;
1905 }
1906
1907 return true;
1908 }
1909
1910 static void qemu_apply_machine_options(QDict *qdict)
1911 {
1912 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1913
1914 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1915 /* fall back to the -kernel/-append */
1916 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1917 }
1918
1919 if (current_machine->smp.cpus > 1) {
1920 replay_add_blocker("smp");
1921 }
1922 }
1923
1924 static void qemu_create_early_backends(void)
1925 {
1926 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1927 #if defined(CONFIG_SDL)
1928 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1929 #else
1930 const bool use_sdl = false;
1931 #endif
1932 #if defined(CONFIG_GTK)
1933 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1934 #else
1935 const bool use_gtk = false;
1936 #endif
1937
1938 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1939 error_report("window-close is only valid for GTK and SDL, "
1940 "ignoring option");
1941 }
1942
1943 qemu_display_early_init(&dpy);
1944 qemu_console_early_init();
1945
1946 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1947 #if defined(CONFIG_OPENGL)
1948 error_report("OpenGL is not supported by the display");
1949 #else
1950 error_report("OpenGL support is disabled");
1951 #endif
1952 exit(1);
1953 }
1954
1955 object_option_foreach_add(object_create_early);
1956
1957 /* spice needs the timers to be initialized by this point */
1958 /* spice must initialize before audio as it changes the default audiodev */
1959 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1960 qemu_spice.init();
1961
1962 qemu_opts_foreach(qemu_find_opts("chardev"),
1963 chardev_init_func, NULL, &error_fatal);
1964
1965 #ifdef CONFIG_VIRTFS
1966 qemu_opts_foreach(qemu_find_opts("fsdev"),
1967 fsdev_init_func, NULL, &error_fatal);
1968 #endif
1969
1970 /*
1971 * Note: we need to create audio and block backends before
1972 * setting machine properties, so they can be referred to.
1973 */
1974 configure_blockdev(&bdo_queue, machine_class, snapshot);
1975 audio_init_audiodevs();
1976 if (default_audio) {
1977 audio_create_default_audiodevs();
1978 }
1979 }
1980
1981
1982 /*
1983 * The remainder of object creation happens after the
1984 * creation of chardev, fsdev, net clients and device data types.
1985 */
1986 static bool object_create_late(const char *type)
1987 {
1988 return !object_create_early(type) && !object_create_pre_sandbox(type);
1989 }
1990
1991 static void qemu_create_late_backends(void)
1992 {
1993 if (qtest_chrdev) {
1994 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
1995 }
1996
1997 net_init_clients();
1998
1999 object_option_foreach_add(object_create_late);
2000
2001 if (tpm_init() < 0) {
2002 exit(1);
2003 }
2004
2005 qemu_opts_foreach(qemu_find_opts("mon"),
2006 mon_init_func, NULL, &error_fatal);
2007
2008 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2009 exit(1);
2010 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2011 exit(1);
2012 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2013 exit(1);
2014
2015 /* now chardevs have been created we may have semihosting to connect */
2016 qemu_semihosting_chardev_init();
2017 }
2018
2019 static void qemu_resolve_machine_memdev(void)
2020 {
2021 if (ram_memdev_id) {
2022 Object *backend;
2023 ram_addr_t backend_size;
2024
2025 backend = object_resolve_path_type(ram_memdev_id,
2026 TYPE_MEMORY_BACKEND, NULL);
2027 if (!backend) {
2028 error_report("Memory backend '%s' not found", ram_memdev_id);
2029 exit(EXIT_FAILURE);
2030 }
2031 if (!have_custom_ram_size) {
2032 backend_size = object_property_get_uint(backend, "size", &error_abort);
2033 current_machine->ram_size = backend_size;
2034 }
2035 object_property_set_link(OBJECT(current_machine),
2036 "memory-backend", backend, &error_fatal);
2037 }
2038 }
2039
2040 static void parse_memory_options(void)
2041 {
2042 QemuOpts *opts = qemu_find_opts_singleton("memory");
2043 QDict *dict, *prop;
2044 const char *mem_str;
2045 Location loc;
2046
2047 loc_push_none(&loc);
2048 qemu_opts_loc_restore(opts);
2049
2050 prop = qdict_new();
2051
2052 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2053 /* Fix up legacy suffix-less format */
2054 mem_str = qemu_opt_get(opts, "size");
2055 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2056 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2057 qdict_put_str(prop, "size", mib_str);
2058 } else {
2059 qdict_put_str(prop, "size", mem_str);
2060 }
2061 }
2062
2063 if (qemu_opt_get(opts, "maxmem")) {
2064 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2065 }
2066 if (qemu_opt_get(opts, "slots")) {
2067 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2068 }
2069
2070 dict = qdict_new();
2071 qdict_put(dict, "memory", prop);
2072 keyval_merge(machine_opts_dict, dict, &error_fatal);
2073 qobject_unref(dict);
2074 loc_pop(&loc);
2075 }
2076
2077 static void qemu_create_machine(QDict *qdict)
2078 {
2079 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2080 object_set_machine_compat_props(machine_class->compat_props);
2081
2082 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2083 object_property_add_child(object_get_root(), "machine",
2084 OBJECT(current_machine));
2085 object_property_add_child(container_get(OBJECT(current_machine),
2086 "/unattached"),
2087 "sysbus", OBJECT(sysbus_get_default()));
2088
2089 if (machine_class->minimum_page_bits) {
2090 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2091 /* This would be a board error: specifying a minimum smaller than
2092 * a target's compile-time fixed setting.
2093 */
2094 g_assert_not_reached();
2095 }
2096 }
2097
2098 cpu_exec_init_all();
2099 page_size_init();
2100
2101 if (machine_class->hw_version) {
2102 qemu_set_hw_version(machine_class->hw_version);
2103 }
2104
2105 /*
2106 * Get the default machine options from the machine if it is not already
2107 * specified either by the configuration file or by the command line.
2108 */
2109 if (machine_class->default_machine_opts) {
2110 QDict *default_opts =
2111 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2112 &error_abort);
2113 qemu_apply_legacy_machine_options(default_opts);
2114 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2115 false, &error_abort);
2116 qobject_unref(default_opts);
2117 }
2118 }
2119
2120 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2121 {
2122 GlobalProperty *g;
2123
2124 g = g_malloc0(sizeof(*g));
2125 g->driver = qemu_opt_get(opts, "driver");
2126 g->property = qemu_opt_get(opts, "property");
2127 g->value = qemu_opt_get(opts, "value");
2128 qdev_prop_register_global(g);
2129 return 0;
2130 }
2131
2132 /*
2133 * Return whether configuration group @group is stored in QemuOpts, or
2134 * recorded as one or more QDicts by qemu_record_config_group.
2135 */
2136 static bool is_qemuopts_group(const char *group)
2137 {
2138 if (g_str_equal(group, "object") ||
2139 g_str_equal(group, "audiodev") ||
2140 g_str_equal(group, "machine") ||
2141 g_str_equal(group, "smp-opts") ||
2142 g_str_equal(group, "boot-opts")) {
2143 return false;
2144 }
2145 return true;
2146 }
2147
2148 static void qemu_record_config_group(const char *group, QDict *dict,
2149 bool from_json, Error **errp)
2150 {
2151 if (g_str_equal(group, "object")) {
2152 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2153 object_option_add_visitor(v);
2154 visit_free(v);
2155
2156 } else if (g_str_equal(group, "audiodev")) {
2157 Audiodev *dev = NULL;
2158 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2159 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2160 audio_define(dev);
2161 }
2162 visit_free(v);
2163
2164 } else if (g_str_equal(group, "machine")) {
2165 /*
2166 * Cannot merge string-valued and type-safe dictionaries, so JSON
2167 * is not accepted yet for -M.
2168 */
2169 assert(!from_json);
2170 keyval_merge(machine_opts_dict, dict, errp);
2171 } else if (g_str_equal(group, "smp-opts")) {
2172 machine_merge_property("smp", dict, &error_fatal);
2173 } else if (g_str_equal(group, "boot-opts")) {
2174 machine_merge_property("boot", dict, &error_fatal);
2175 } else {
2176 abort();
2177 }
2178 }
2179
2180 /*
2181 * Parse non-QemuOpts config file groups, pass the rest to
2182 * qemu_config_do_parse.
2183 */
2184 static void qemu_parse_config_group(const char *group, QDict *qdict,
2185 void *opaque, Error **errp)
2186 {
2187 QObject *crumpled;
2188 if (is_qemuopts_group(group)) {
2189 qemu_config_do_parse(group, qdict, opaque, errp);
2190 return;
2191 }
2192
2193 crumpled = qdict_crumple(qdict, errp);
2194 if (!crumpled) {
2195 return;
2196 }
2197 switch (qobject_type(crumpled)) {
2198 case QTYPE_QDICT:
2199 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2200 break;
2201 case QTYPE_QLIST:
2202 error_setg(errp, "Lists cannot be at top level of a configuration section");
2203 break;
2204 default:
2205 g_assert_not_reached();
2206 }
2207 qobject_unref(crumpled);
2208 }
2209
2210 static void qemu_read_default_config_file(Error **errp)
2211 {
2212 ERRP_GUARD();
2213 int ret;
2214 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2215
2216 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2217 if (ret < 0) {
2218 if (ret == -ENOENT) {
2219 error_free(*errp);
2220 *errp = NULL;
2221 }
2222 }
2223 }
2224
2225 static void qemu_set_option(const char *str, Error **errp)
2226 {
2227 char group[64], id[64], arg[64];
2228 QemuOptsList *list;
2229 QemuOpts *opts;
2230 int rc, offset;
2231
2232 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2233 if (rc < 3 || str[offset] != '=') {
2234 error_setg(errp, "can't parse: \"%s\"", str);
2235 return;
2236 }
2237
2238 if (!is_qemuopts_group(group)) {
2239 error_setg(errp, "-set is not supported with %s", group);
2240 } else {
2241 list = qemu_find_opts_err(group, errp);
2242 if (list) {
2243 opts = qemu_opts_find(list, id);
2244 if (!opts) {
2245 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2246 return;
2247 }
2248 qemu_opt_set(opts, arg, str + offset + 1, errp);
2249 }
2250 }
2251 }
2252
2253 static void user_register_global_props(void)
2254 {
2255 qemu_opts_foreach(qemu_find_opts("global"),
2256 global_init_func, NULL, NULL);
2257 }
2258
2259 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2260 {
2261 icount_configure(opts, errp);
2262 return 0;
2263 }
2264
2265 static int accelerator_set_property(void *opaque,
2266 const char *name, const char *value,
2267 Error **errp)
2268 {
2269 return object_parse_property_opt(opaque, name, value, "accel", errp);
2270 }
2271
2272 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2273 {
2274 bool *p_init_failed = opaque;
2275 const char *acc = qemu_opt_get(opts, "accel");
2276 AccelClass *ac = accel_find(acc);
2277 AccelState *accel;
2278 int ret;
2279 bool qtest_with_kvm;
2280
2281 if (!acc) {
2282 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2283 goto bad;
2284 }
2285
2286 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2287
2288 if (!ac) {
2289 if (!qtest_with_kvm) {
2290 error_report("invalid accelerator %s", acc);
2291 }
2292 goto bad;
2293 }
2294 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2295 object_apply_compat_props(OBJECT(accel));
2296 qemu_opt_foreach(opts, accelerator_set_property,
2297 accel,
2298 &error_fatal);
2299 /*
2300 * If legacy -singlestep option is set, honour it for TCG and
2301 * silently ignore for any other accelerator (which is how this
2302 * option has always behaved).
2303 */
2304 if (opt_one_insn_per_tb) {
2305 /*
2306 * This will always succeed for TCG, and we want to ignore
2307 * the error from trying to set a nonexistent property
2308 * on any other accelerator.
2309 */
2310 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL);
2311 }
2312 ret = accel_init_machine(accel, current_machine);
2313 if (ret < 0) {
2314 if (!qtest_with_kvm || ret != -ENOENT) {
2315 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2316 }
2317 goto bad;
2318 }
2319
2320 return 1;
2321
2322 bad:
2323 *p_init_failed = true;
2324 return 0;
2325 }
2326
2327 static void configure_accelerators(const char *progname)
2328 {
2329 bool init_failed = false;
2330
2331 qemu_opts_foreach(qemu_find_opts("icount"),
2332 do_configure_icount, NULL, &error_fatal);
2333
2334 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2335 char **accel_list, **tmp;
2336
2337 if (accelerators == NULL) {
2338 /* Select the default accelerator */
2339 bool have_tcg = accel_find("tcg");
2340 bool have_kvm = accel_find("kvm");
2341
2342 if (have_tcg && have_kvm) {
2343 if (g_str_has_suffix(progname, "kvm")) {
2344 /* If the program name ends with "kvm", we prefer KVM */
2345 accelerators = "kvm:tcg";
2346 } else {
2347 accelerators = "tcg:kvm";
2348 }
2349 } else if (have_kvm) {
2350 accelerators = "kvm";
2351 } else if (have_tcg) {
2352 accelerators = "tcg";
2353 } else {
2354 error_report("No accelerator selected and"
2355 " no default accelerator available");
2356 exit(1);
2357 }
2358 }
2359 accel_list = g_strsplit(accelerators, ":", 0);
2360
2361 for (tmp = accel_list; *tmp; tmp++) {
2362 /*
2363 * Filter invalid accelerators here, to prevent obscenities
2364 * such as "-machine accel=tcg,,thread=single".
2365 */
2366 if (accel_find(*tmp)) {
2367 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2368 } else {
2369 init_failed = true;
2370 error_report("invalid accelerator %s", *tmp);
2371 }
2372 }
2373 g_strfreev(accel_list);
2374 } else {
2375 if (accelerators != NULL) {
2376 error_report("The -accel and \"-machine accel=\" options are incompatible");
2377 exit(1);
2378 }
2379 }
2380
2381 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2382 do_configure_accelerator, &init_failed, &error_fatal)) {
2383 if (!init_failed) {
2384 error_report("no accelerator found");
2385 }
2386 exit(1);
2387 }
2388
2389 if (init_failed && !qtest_chrdev) {
2390 error_report("falling back to %s", current_accel_name());
2391 }
2392
2393 if (icount_enabled() && !tcg_enabled()) {
2394 error_report("-icount is not allowed with hardware virtualization");
2395 exit(1);
2396 }
2397 }
2398
2399 static void qemu_validate_options(const QDict *machine_opts)
2400 {
2401 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2402 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2403 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2404
2405 if (kernel_filename == NULL) {
2406 if (kernel_cmdline != NULL) {
2407 error_report("-append only allowed with -kernel option");
2408 exit(1);
2409 }
2410
2411 if (initrd_filename != NULL) {
2412 error_report("-initrd only allowed with -kernel option");
2413 exit(1);
2414 }
2415 }
2416
2417 if (loadvm && preconfig_requested) {
2418 error_report("'preconfig' and 'loadvm' options are "
2419 "mutually exclusive");
2420 exit(EXIT_FAILURE);
2421 }
2422 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2423 error_report("'preconfig' supports '-incoming defer' only");
2424 exit(EXIT_FAILURE);
2425 }
2426
2427 #ifdef CONFIG_CURSES
2428 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2429 error_report("curses display cannot be used with -daemonize");
2430 exit(1);
2431 }
2432 #endif
2433 }
2434
2435 static void qemu_process_sugar_options(void)
2436 {
2437 if (mem_prealloc) {
2438 QObject *smp = qdict_get(machine_opts_dict, "smp");
2439 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2440 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2441 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2442 const char *val = qstring_get_str(qobject_to(QString, cpus));
2443 object_register_sugar_prop("memory-backend", "prealloc-threads",
2444 val, false);
2445 }
2446 }
2447 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2448 }
2449 }
2450
2451 /* -action processing */
2452
2453 /*
2454 * Process all the -action parameters parsed from cmdline.
2455 */
2456 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2457 {
2458 Error *local_err = NULL;
2459 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2460 QObject *ret = NULL;
2461 qmp_marshal_set_action(qdict, &ret, &local_err);
2462 qobject_unref(ret);
2463 qobject_unref(qdict);
2464 if (local_err) {
2465 error_propagate(errp, local_err);
2466 return 1;
2467 }
2468 return 0;
2469 }
2470
2471 static void qemu_process_early_options(void)
2472 {
2473 qemu_opts_foreach(qemu_find_opts("name"),
2474 parse_name, NULL, &error_fatal);
2475
2476 object_option_foreach_add(object_create_pre_sandbox);
2477
2478 #ifdef CONFIG_SECCOMP
2479 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2480 if (olist) {
2481 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2482 }
2483 #endif
2484
2485 if (qemu_opts_foreach(qemu_find_opts("action"),
2486 process_runstate_actions, NULL, &error_fatal)) {
2487 exit(1);
2488 }
2489
2490 #ifndef _WIN32
2491 qemu_opts_foreach(qemu_find_opts("add-fd"),
2492 parse_add_fd, NULL, &error_fatal);
2493
2494 qemu_opts_foreach(qemu_find_opts("add-fd"),
2495 cleanup_add_fd, NULL, &error_fatal);
2496 #endif
2497
2498 /* Open the logfile at this point and set the log mask if necessary. */
2499 {
2500 int mask = 0;
2501 if (log_mask) {
2502 mask = qemu_str_to_log_mask(log_mask);
2503 if (!mask) {
2504 qemu_print_log_usage(stdout);
2505 exit(1);
2506 }
2507 }
2508 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2509 }
2510
2511 qemu_add_default_firmwarepath();
2512 }
2513
2514 static void qemu_process_help_options(void)
2515 {
2516 /*
2517 * Check for -cpu help and -device help before we call select_machine(),
2518 * which will return an error if the architecture has no default machine
2519 * type and the user did not specify one, so that the user doesn't need
2520 * to say '-cpu help -machine something'.
2521 */
2522 if (cpu_option && is_help_option(cpu_option)) {
2523 list_cpus();
2524 exit(0);
2525 }
2526
2527 if (qemu_opts_foreach(qemu_find_opts("device"),
2528 device_help_func, NULL, NULL)) {
2529 exit(0);
2530 }
2531
2532 /* -L help lists the data directories and exits. */
2533 if (list_data_dirs) {
2534 qemu_list_data_dirs();
2535 exit(0);
2536 }
2537 }
2538
2539 static void qemu_maybe_daemonize(const char *pid_file)
2540 {
2541 Error *err = NULL;
2542
2543 os_daemonize();
2544 rcu_disable_atfork();
2545
2546 if (pid_file) {
2547 char *pid_file_realpath = NULL;
2548
2549 if (!qemu_write_pidfile(pid_file, &err)) {
2550 error_reportf_err(err, "cannot create PID file: ");
2551 exit(1);
2552 }
2553
2554 pid_file_realpath = g_malloc0(PATH_MAX);
2555 if (!realpath(pid_file, pid_file_realpath)) {
2556 if (errno != ENOENT) {
2557 warn_report("not removing PID file on exit: cannot resolve PID "
2558 "file path: %s: %s", pid_file, strerror(errno));
2559 }
2560 return;
2561 }
2562
2563 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2564 .notifier = {
2565 .notify = qemu_unlink_pidfile,
2566 },
2567 .pid_file_realpath = pid_file_realpath,
2568 };
2569 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2570 }
2571 }
2572
2573 static void qemu_init_displays(void)
2574 {
2575 DisplayState *ds;
2576
2577 /* init local displays */
2578 ds = init_displaystate();
2579 qemu_display_init(ds, &dpy);
2580
2581 /* must be after terminal init, SDL library changes signal handlers */
2582 os_setup_signal_handling();
2583
2584 /* init remote displays */
2585 #ifdef CONFIG_VNC
2586 qemu_opts_foreach(qemu_find_opts("vnc"),
2587 vnc_init_func, NULL, &error_fatal);
2588 #endif
2589
2590 if (using_spice) {
2591 qemu_spice.display_init();
2592 }
2593 }
2594
2595 static void qemu_init_board(void)
2596 {
2597 /* process plugin before CPUs are created, but once -smp has been parsed */
2598 qemu_plugin_load_list(&plugin_list, &error_fatal);
2599
2600 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2601 machine_run_board_init(current_machine, mem_path, &error_fatal);
2602
2603 drive_check_orphaned();
2604
2605 realtime_init();
2606 }
2607
2608 static void qemu_create_cli_devices(void)
2609 {
2610 DeviceOption *opt;
2611
2612 soundhw_init();
2613
2614 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2615 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2616
2617 /* init USB devices */
2618 if (machine_usb(current_machine)) {
2619 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2620 exit(1);
2621 }
2622
2623 /* init generic devices */
2624 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2625 qemu_opts_foreach(qemu_find_opts("device"),
2626 device_init_func, NULL, &error_fatal);
2627 QTAILQ_FOREACH(opt, &device_opts, next) {
2628 DeviceState *dev;
2629 loc_push_restore(&opt->loc);
2630 /*
2631 * TODO Eventually we should call qmp_device_add() here to make sure it
2632 * behaves the same, but QMP still has to accept incorrectly typed
2633 * options until libvirt is fixed and we want to be strict on the CLI
2634 * from the start, so call qdev_device_add_from_qdict() directly for
2635 * now.
2636 */
2637 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2638 object_unref(OBJECT(dev));
2639 loc_pop(&opt->loc);
2640 }
2641 rom_reset_order_override();
2642 }
2643
2644 static void qemu_machine_creation_done(void)
2645 {
2646 MachineState *machine = MACHINE(qdev_get_machine());
2647
2648 /* Did we create any drives that we failed to create a device for? */
2649 drive_check_orphaned();
2650
2651 /* Don't warn about the default network setup that you get if
2652 * no command line -net or -netdev options are specified. There
2653 * are two cases that we would otherwise complain about:
2654 * (1) board doesn't support a NIC but the implicit "-net nic"
2655 * requested one
2656 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2657 * sets up a nic that isn't connected to anything.
2658 */
2659 if (!default_net && (!qtest_enabled() || has_defaults)) {
2660 net_check_clients();
2661 }
2662
2663 qdev_prop_check_globals();
2664
2665 qdev_machine_creation_done();
2666
2667 if (machine->cgs) {
2668 /*
2669 * Verify that Confidential Guest Support has actually been initialized
2670 */
2671 assert(machine->cgs->ready);
2672 }
2673
2674 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2675 exit(1);
2676 }
2677 if (!vga_interface_created && !default_vga &&
2678 vga_interface_type != VGA_NONE) {
2679 warn_report("A -vga option was passed but this machine "
2680 "type does not use that option; "
2681 "No VGA device has been created");
2682 }
2683 }
2684
2685 void qmp_x_exit_preconfig(Error **errp)
2686 {
2687 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2688 error_setg(errp, "The command is permitted only before machine initialization");
2689 return;
2690 }
2691
2692 qemu_init_board();
2693 qemu_create_cli_devices();
2694 qemu_machine_creation_done();
2695
2696 if (loadvm) {
2697 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2698 }
2699 if (replay_mode != REPLAY_MODE_NONE) {
2700 replay_vmstate_init();
2701 }
2702
2703 if (incoming) {
2704 Error *local_err = NULL;
2705 if (strcmp(incoming, "defer") != 0) {
2706 qmp_migrate_incoming(incoming, false, NULL, &local_err);
2707 if (local_err) {
2708 error_reportf_err(local_err, "-incoming %s: ", incoming);
2709 exit(1);
2710 }
2711 }
2712 } else if (autostart) {
2713 qmp_cont(NULL);
2714 }
2715 }
2716
2717 void qemu_init(int argc, char **argv)
2718 {
2719 QemuOpts *opts;
2720 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2721 QemuOptsList *olist;
2722 int optind;
2723 const char *optarg;
2724 MachineClass *machine_class;
2725 bool userconfig = true;
2726 FILE *vmstate_dump_file = NULL;
2727
2728 qemu_add_opts(&qemu_drive_opts);
2729 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2730 qemu_add_drive_opts(&qemu_common_drive_opts);
2731 qemu_add_drive_opts(&qemu_drive_opts);
2732 qemu_add_drive_opts(&bdrv_runtime_opts);
2733 qemu_add_opts(&qemu_chardev_opts);
2734 qemu_add_opts(&qemu_device_opts);
2735 qemu_add_opts(&qemu_netdev_opts);
2736 qemu_add_opts(&qemu_nic_opts);
2737 qemu_add_opts(&qemu_net_opts);
2738 qemu_add_opts(&qemu_rtc_opts);
2739 qemu_add_opts(&qemu_global_opts);
2740 qemu_add_opts(&qemu_mon_opts);
2741 qemu_add_opts(&qemu_trace_opts);
2742 qemu_plugin_add_opts();
2743 qemu_add_opts(&qemu_option_rom_opts);
2744 qemu_add_opts(&qemu_accel_opts);
2745 qemu_add_opts(&qemu_mem_opts);
2746 qemu_add_opts(&qemu_smp_opts);
2747 qemu_add_opts(&qemu_boot_opts);
2748 qemu_add_opts(&qemu_add_fd_opts);
2749 qemu_add_opts(&qemu_object_opts);
2750 qemu_add_opts(&qemu_tpmdev_opts);
2751 qemu_add_opts(&qemu_overcommit_opts);
2752 qemu_add_opts(&qemu_msg_opts);
2753 qemu_add_opts(&qemu_name_opts);
2754 qemu_add_opts(&qemu_numa_opts);
2755 qemu_add_opts(&qemu_icount_opts);
2756 qemu_add_opts(&qemu_semihosting_config_opts);
2757 qemu_add_opts(&qemu_fw_cfg_opts);
2758 qemu_add_opts(&qemu_action_opts);
2759 qemu_add_run_with_opts();
2760 module_call_init(MODULE_INIT_OPTS);
2761
2762 error_init(argv[0]);
2763 qemu_init_exec_dir(argv[0]);
2764
2765 qemu_init_arch_modules();
2766
2767 qemu_init_subsystems();
2768
2769 /* first pass of option parsing */
2770 optind = 1;
2771 while (optind < argc) {
2772 if (argv[optind][0] != '-') {
2773 /* disk image */
2774 optind++;
2775 } else {
2776 const QEMUOption *popt;
2777
2778 popt = lookup_opt(argc, argv, &optarg, &optind);
2779 switch (popt->index) {
2780 case QEMU_OPTION_nouserconfig:
2781 userconfig = false;
2782 break;
2783 }
2784 }
2785 }
2786
2787 machine_opts_dict = qdict_new();
2788 if (userconfig) {
2789 qemu_read_default_config_file(&error_fatal);
2790 }
2791
2792 /* second pass of option parsing */
2793 optind = 1;
2794 for(;;) {
2795 if (optind >= argc)
2796 break;
2797 if (argv[optind][0] != '-') {
2798 loc_set_cmdline(argv, optind, 1);
2799 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2800 } else {
2801 const QEMUOption *popt;
2802
2803 popt = lookup_opt(argc, argv, &optarg, &optind);
2804 if (!(popt->arch_mask & arch_type)) {
2805 error_report("Option not supported for this target");
2806 exit(1);
2807 }
2808 switch(popt->index) {
2809 case QEMU_OPTION_cpu:
2810 /* hw initialization will check this */
2811 cpu_option = optarg;
2812 break;
2813 case QEMU_OPTION_hda:
2814 case QEMU_OPTION_hdb:
2815 case QEMU_OPTION_hdc:
2816 case QEMU_OPTION_hdd:
2817 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2818 HD_OPTS);
2819 break;
2820 case QEMU_OPTION_blockdev:
2821 {
2822 Visitor *v;
2823 BlockdevOptionsQueueEntry *bdo;
2824
2825 v = qobject_input_visitor_new_str(optarg, "driver",
2826 &error_fatal);
2827
2828 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2829 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2830 &error_fatal);
2831 visit_free(v);
2832 loc_save(&bdo->loc);
2833 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2834 break;
2835 }
2836 case QEMU_OPTION_drive:
2837 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2838 optarg, false);
2839 if (opts == NULL) {
2840 exit(1);
2841 }
2842 break;
2843 case QEMU_OPTION_set:
2844 qemu_set_option(optarg, &error_fatal);
2845 break;
2846 case QEMU_OPTION_global:
2847 if (qemu_global_option(optarg) != 0)
2848 exit(1);
2849 break;
2850 case QEMU_OPTION_mtdblock:
2851 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2852 break;
2853 case QEMU_OPTION_sd:
2854 drive_add(IF_SD, -1, optarg, SD_OPTS);
2855 break;
2856 case QEMU_OPTION_pflash:
2857 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2858 break;
2859 case QEMU_OPTION_snapshot:
2860 snapshot = 1;
2861 replay_add_blocker("-snapshot");
2862 break;
2863 case QEMU_OPTION_numa:
2864 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2865 optarg, true);
2866 if (!opts) {
2867 exit(1);
2868 }
2869 break;
2870 case QEMU_OPTION_display:
2871 parse_display(optarg);
2872 break;
2873 case QEMU_OPTION_nographic:
2874 qdict_put_str(machine_opts_dict, "graphics", "off");
2875 nographic = true;
2876 dpy.type = DISPLAY_TYPE_NONE;
2877 break;
2878 case QEMU_OPTION_portrait:
2879 graphic_rotate = 90;
2880 break;
2881 case QEMU_OPTION_rotate:
2882 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2883 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2884 graphic_rotate != 180 && graphic_rotate != 270) {
2885 error_report("only 90, 180, 270 deg rotation is available");
2886 exit(1);
2887 }
2888 break;
2889 case QEMU_OPTION_kernel:
2890 qdict_put_str(machine_opts_dict, "kernel", optarg);
2891 break;
2892 case QEMU_OPTION_initrd:
2893 qdict_put_str(machine_opts_dict, "initrd", optarg);
2894 break;
2895 case QEMU_OPTION_append:
2896 qdict_put_str(machine_opts_dict, "append", optarg);
2897 break;
2898 case QEMU_OPTION_dtb:
2899 qdict_put_str(machine_opts_dict, "dtb", optarg);
2900 break;
2901 case QEMU_OPTION_cdrom:
2902 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2903 break;
2904 case QEMU_OPTION_boot:
2905 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2906 break;
2907 case QEMU_OPTION_fda:
2908 case QEMU_OPTION_fdb:
2909 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2910 optarg, FD_OPTS);
2911 break;
2912 case QEMU_OPTION_no_fd_bootchk:
2913 fd_bootchk = 0;
2914 break;
2915 case QEMU_OPTION_netdev:
2916 default_net = 0;
2917 if (netdev_is_modern(optarg)) {
2918 netdev_parse_modern(optarg);
2919 } else {
2920 net_client_parse(qemu_find_opts("netdev"), optarg);
2921 }
2922 break;
2923 case QEMU_OPTION_nic:
2924 default_net = 0;
2925 net_client_parse(qemu_find_opts("nic"), optarg);
2926 break;
2927 case QEMU_OPTION_net:
2928 default_net = 0;
2929 net_client_parse(qemu_find_opts("net"), optarg);
2930 break;
2931 #ifdef CONFIG_LIBISCSI
2932 case QEMU_OPTION_iscsi:
2933 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2934 optarg, false);
2935 if (!opts) {
2936 exit(1);
2937 }
2938 break;
2939 #endif
2940 case QEMU_OPTION_audiodev:
2941 default_audio = 0;
2942 audio_parse_option(optarg);
2943 break;
2944 case QEMU_OPTION_audio: {
2945 bool help;
2946 char *model = NULL;
2947 Audiodev *dev = NULL;
2948 Visitor *v;
2949 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2950 default_audio = 0;
2951 if (help || (qdict_haskey(dict, "driver") &&
2952 is_help_option(qdict_get_str(dict, "driver")))) {
2953 audio_help();
2954 exit(EXIT_SUCCESS);
2955 }
2956 if (!qdict_haskey(dict, "id")) {
2957 qdict_put_str(dict, "id", "audiodev0");
2958 }
2959 if (qdict_haskey(dict, "model")) {
2960 model = g_strdup(qdict_get_str(dict, "model"));
2961 qdict_del(dict, "model");
2962 if (is_help_option(model)) {
2963 show_valid_soundhw();
2964 exit(0);
2965 }
2966 }
2967 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2968 qobject_unref(dict);
2969 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2970 visit_free(v);
2971 if (model) {
2972 audio_define(dev);
2973 select_soundhw(model, dev->id);
2974 g_free(model);
2975 } else {
2976 audio_define_default(dev, &error_fatal);
2977 }
2978 break;
2979 }
2980 case QEMU_OPTION_h:
2981 help(0);
2982 break;
2983 case QEMU_OPTION_version:
2984 version();
2985 exit(0);
2986 break;
2987 case QEMU_OPTION_m:
2988 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
2989 if (opts == NULL) {
2990 exit(1);
2991 }
2992 break;
2993 #ifdef CONFIG_TPM
2994 case QEMU_OPTION_tpmdev:
2995 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
2996 exit(1);
2997 }
2998 break;
2999 #endif
3000 case QEMU_OPTION_mempath:
3001 mem_path = optarg;
3002 break;
3003 case QEMU_OPTION_mem_prealloc:
3004 mem_prealloc = 1;
3005 break;
3006 case QEMU_OPTION_d:
3007 log_mask = optarg;
3008 break;
3009 case QEMU_OPTION_D:
3010 log_file = optarg;
3011 break;
3012 case QEMU_OPTION_DFILTER:
3013 qemu_set_dfilter_ranges(optarg, &error_fatal);
3014 break;
3015 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3016 case QEMU_OPTION_perfmap:
3017 perf_enable_perfmap();
3018 break;
3019 case QEMU_OPTION_jitdump:
3020 perf_enable_jitdump();
3021 break;
3022 #endif
3023 case QEMU_OPTION_seed:
3024 qemu_guest_random_seed_main(optarg, &error_fatal);
3025 break;
3026 case QEMU_OPTION_s:
3027 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3028 break;
3029 case QEMU_OPTION_gdb:
3030 add_device_config(DEV_GDB, optarg);
3031 break;
3032 case QEMU_OPTION_L:
3033 if (is_help_option(optarg)) {
3034 list_data_dirs = true;
3035 } else {
3036 qemu_add_data_dir(g_strdup(optarg));
3037 }
3038 break;
3039 case QEMU_OPTION_bios:
3040 qdict_put_str(machine_opts_dict, "firmware", optarg);
3041 break;
3042 case QEMU_OPTION_singlestep:
3043 opt_one_insn_per_tb = true;
3044 break;
3045 case QEMU_OPTION_S:
3046 autostart = 0;
3047 break;
3048 case QEMU_OPTION_k:
3049 keyboard_layout = optarg;
3050 break;
3051 case QEMU_OPTION_vga:
3052 vga_model = optarg;
3053 default_vga = 0;
3054 break;
3055 case QEMU_OPTION_g:
3056 {
3057 const char *p;
3058 int w, h, depth;
3059 p = optarg;
3060 w = strtol(p, (char **)&p, 10);
3061 if (w <= 0) {
3062 graphic_error:
3063 error_report("invalid resolution or depth");
3064 exit(1);
3065 }
3066 if (*p != 'x')
3067 goto graphic_error;
3068 p++;
3069 h = strtol(p, (char **)&p, 10);
3070 if (h <= 0)
3071 goto graphic_error;
3072 if (*p == 'x') {
3073 p++;
3074 depth = strtol(p, (char **)&p, 10);
3075 if (depth != 1 && depth != 2 && depth != 4 &&
3076 depth != 8 && depth != 15 && depth != 16 &&
3077 depth != 24 && depth != 32)
3078 goto graphic_error;
3079 } else if (*p == '\0') {
3080 depth = graphic_depth;
3081 } else {
3082 goto graphic_error;
3083 }
3084
3085 graphic_width = w;
3086 graphic_height = h;
3087 graphic_depth = depth;
3088 }
3089 break;
3090 case QEMU_OPTION_echr:
3091 {
3092 char *r;
3093 term_escape_char = strtol(optarg, &r, 0);
3094 if (r == optarg)
3095 printf("Bad argument to echr\n");
3096 break;
3097 }
3098 case QEMU_OPTION_monitor:
3099 default_monitor = 0;
3100 if (strncmp(optarg, "none", 4)) {
3101 monitor_parse(optarg, "readline", false);
3102 }
3103 break;
3104 case QEMU_OPTION_qmp:
3105 monitor_parse(optarg, "control", false);
3106 default_monitor = 0;
3107 break;
3108 case QEMU_OPTION_qmp_pretty:
3109 monitor_parse(optarg, "control", true);
3110 default_monitor = 0;
3111 break;
3112 case QEMU_OPTION_mon:
3113 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3114 true);
3115 if (!opts) {
3116 exit(1);
3117 }
3118 default_monitor = 0;
3119 break;
3120 case QEMU_OPTION_chardev:
3121 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3122 optarg, true);
3123 if (!opts) {
3124 exit(1);
3125 }
3126 break;
3127 case QEMU_OPTION_fsdev:
3128 olist = qemu_find_opts("fsdev");
3129 if (!olist) {
3130 error_report("fsdev support is disabled");
3131 exit(1);
3132 }
3133 opts = qemu_opts_parse_noisily(olist, optarg, true);
3134 if (!opts) {
3135 exit(1);
3136 }
3137 break;
3138 case QEMU_OPTION_virtfs: {
3139 QemuOpts *fsdev;
3140 QemuOpts *device;
3141 const char *writeout, *sock_fd, *socket, *path, *security_model,
3142 *multidevs;
3143
3144 olist = qemu_find_opts("virtfs");
3145 if (!olist) {
3146 error_report("virtfs support is disabled");
3147 exit(1);
3148 }
3149 opts = qemu_opts_parse_noisily(olist, optarg, true);
3150 if (!opts) {
3151 exit(1);
3152 }
3153
3154 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3155 qemu_opt_get(opts, "mount_tag") == NULL) {
3156 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3157 exit(1);
3158 }
3159 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3160 qemu_opts_id(opts) ?:
3161 qemu_opt_get(opts, "mount_tag"),
3162 1, NULL);
3163 if (!fsdev) {
3164 error_report("duplicate or invalid fsdev id: %s",
3165 qemu_opt_get(opts, "mount_tag"));
3166 exit(1);
3167 }
3168
3169 writeout = qemu_opt_get(opts, "writeout");
3170 if (writeout) {
3171 #ifdef CONFIG_SYNC_FILE_RANGE
3172 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3173 #else
3174 error_report("writeout=immediate not supported "
3175 "on this platform");
3176 exit(1);
3177 #endif
3178 }
3179 qemu_opt_set(fsdev, "fsdriver",
3180 qemu_opt_get(opts, "fsdriver"), &error_abort);
3181 path = qemu_opt_get(opts, "path");
3182 if (path) {
3183 qemu_opt_set(fsdev, "path", path, &error_abort);
3184 }
3185 security_model = qemu_opt_get(opts, "security_model");
3186 if (security_model) {
3187 qemu_opt_set(fsdev, "security_model", security_model,
3188 &error_abort);
3189 }
3190 socket = qemu_opt_get(opts, "socket");
3191 if (socket) {
3192 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3193 }
3194 sock_fd = qemu_opt_get(opts, "sock_fd");
3195 if (sock_fd) {
3196 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3197 }
3198
3199 qemu_opt_set_bool(fsdev, "readonly",
3200 qemu_opt_get_bool(opts, "readonly", 0),
3201 &error_abort);
3202 multidevs = qemu_opt_get(opts, "multidevs");
3203 if (multidevs) {
3204 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3205 }
3206 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3207 &error_abort);
3208 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3209 qemu_opt_set(device, "fsdev",
3210 qemu_opts_id(fsdev), &error_abort);
3211 qemu_opt_set(device, "mount_tag",
3212 qemu_opt_get(opts, "mount_tag"), &error_abort);
3213 break;
3214 }
3215 case QEMU_OPTION_serial:
3216 add_device_config(DEV_SERIAL, optarg);
3217 default_serial = 0;
3218 if (strncmp(optarg, "mon:", 4) == 0) {
3219 default_monitor = 0;
3220 }
3221 break;
3222 case QEMU_OPTION_action:
3223 olist = qemu_find_opts("action");
3224 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3225 exit(1);
3226 }
3227 break;
3228 case QEMU_OPTION_watchdog_action: {
3229 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3230 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3231 break;
3232 }
3233 case QEMU_OPTION_parallel:
3234 add_device_config(DEV_PARALLEL, optarg);
3235 default_parallel = 0;
3236 if (strncmp(optarg, "mon:", 4) == 0) {
3237 default_monitor = 0;
3238 }
3239 break;
3240 case QEMU_OPTION_debugcon:
3241 add_device_config(DEV_DEBUGCON, optarg);
3242 break;
3243 case QEMU_OPTION_loadvm:
3244 loadvm = optarg;
3245 break;
3246 case QEMU_OPTION_full_screen:
3247 dpy.has_full_screen = true;
3248 dpy.full_screen = true;
3249 break;
3250 case QEMU_OPTION_pidfile:
3251 pid_file = optarg;
3252 break;
3253 case QEMU_OPTION_win2k_hack:
3254 win2k_install_hack = 1;
3255 break;
3256 case QEMU_OPTION_acpitable:
3257 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3258 optarg, true);
3259 if (!opts) {
3260 exit(1);
3261 }
3262 acpi_table_add(opts, &error_fatal);
3263 break;
3264 case QEMU_OPTION_smbios:
3265 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3266 optarg, false);
3267 if (!opts) {
3268 exit(1);
3269 }
3270 smbios_entry_add(opts, &error_fatal);
3271 break;
3272 case QEMU_OPTION_fwcfg:
3273 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3274 optarg, true);
3275 if (opts == NULL) {
3276 exit(1);
3277 }
3278 break;
3279 case QEMU_OPTION_preconfig:
3280 preconfig_requested = true;
3281 break;
3282 case QEMU_OPTION_enable_kvm:
3283 qdict_put_str(machine_opts_dict, "accel", "kvm");
3284 break;
3285 case QEMU_OPTION_M:
3286 case QEMU_OPTION_machine:
3287 {
3288 bool help;
3289
3290 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3291 if (help) {
3292 machine_help_func(machine_opts_dict);
3293 exit(EXIT_SUCCESS);
3294 }
3295 break;
3296 }
3297 case QEMU_OPTION_accel:
3298 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3299 optarg, true);
3300 optarg = qemu_opt_get(accel_opts, "accel");
3301 if (!optarg || is_help_option(optarg)) {
3302 printf("Accelerators supported in QEMU binary:\n");
3303 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3304 false);
3305 for (el = accel_list; el; el = el->next) {
3306 gchar *typename = g_strdup(object_class_get_name(
3307 OBJECT_CLASS(el->data)));
3308 /* omit qtest which is used for tests only */
3309 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3310 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3311 gchar **optname = g_strsplit(typename,
3312 ACCEL_CLASS_SUFFIX, 0);
3313 printf("%s\n", optname[0]);
3314 g_strfreev(optname);
3315 }
3316 g_free(typename);
3317 }
3318 g_slist_free(accel_list);
3319 exit(0);
3320 }
3321 break;
3322 case QEMU_OPTION_usb:
3323 qdict_put_str(machine_opts_dict, "usb", "on");
3324 break;
3325 case QEMU_OPTION_usbdevice:
3326 qdict_put_str(machine_opts_dict, "usb", "on");
3327 add_device_config(DEV_USB, optarg);
3328 break;
3329 case QEMU_OPTION_device:
3330 if (optarg[0] == '{') {
3331 QObject *obj = qobject_from_json(optarg, &error_fatal);
3332 DeviceOption *opt = g_new0(DeviceOption, 1);
3333 opt->opts = qobject_to(QDict, obj);
3334 loc_save(&opt->loc);
3335 assert(opt->opts != NULL);
3336 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3337 } else {
3338 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3339 optarg, true)) {
3340 exit(1);
3341 }
3342 }
3343 break;
3344 case QEMU_OPTION_smp:
3345 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3346 "smp", optarg);
3347 break;
3348 case QEMU_OPTION_vnc:
3349 vnc_parse(optarg);
3350 break;
3351 case QEMU_OPTION_no_acpi:
3352 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3353 qdict_put_str(machine_opts_dict, "acpi", "off");
3354 break;
3355 case QEMU_OPTION_no_hpet:
3356 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3357 qdict_put_str(machine_opts_dict, "hpet", "off");
3358 break;
3359 case QEMU_OPTION_no_reboot:
3360 olist = qemu_find_opts("action");
3361 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3362 break;
3363 case QEMU_OPTION_no_shutdown:
3364 olist = qemu_find_opts("action");
3365 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3366 break;
3367 case QEMU_OPTION_uuid:
3368 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3369 error_report("failed to parse UUID string: wrong format");
3370 exit(1);
3371 }
3372 qemu_uuid_set = true;
3373 break;
3374 case QEMU_OPTION_option_rom:
3375 if (nb_option_roms >= MAX_OPTION_ROMS) {
3376 error_report("too many option ROMs");
3377 exit(1);
3378 }
3379 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3380 optarg, true);
3381 if (!opts) {
3382 exit(1);
3383 }
3384 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3385 option_rom[nb_option_roms].bootindex =
3386 qemu_opt_get_number(opts, "bootindex", -1);
3387 if (!option_rom[nb_option_roms].name) {
3388 error_report("Option ROM file is not specified");
3389 exit(1);
3390 }
3391 nb_option_roms++;
3392 break;
3393 case QEMU_OPTION_semihosting:
3394 qemu_semihosting_enable();
3395 break;
3396 case QEMU_OPTION_semihosting_config:
3397 if (qemu_semihosting_config_options(optarg) != 0) {
3398 exit(1);
3399 }
3400 break;
3401 case QEMU_OPTION_name:
3402 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3403 optarg, true);
3404 if (!opts) {
3405 exit(1);
3406 }
3407 /* Capture guest name if -msg guest-name is used later */
3408 error_guest_name = qemu_opt_get(opts, "guest");
3409 break;
3410 case QEMU_OPTION_prom_env:
3411 if (nb_prom_envs >= MAX_PROM_ENVS) {
3412 error_report("too many prom variables");
3413 exit(1);
3414 }
3415 prom_envs[nb_prom_envs] = optarg;
3416 nb_prom_envs++;
3417 break;
3418 case QEMU_OPTION_old_param:
3419 old_param = 1;
3420 break;
3421 case QEMU_OPTION_rtc:
3422 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3423 false);
3424 if (!opts) {
3425 exit(1);
3426 }
3427 break;
3428 case QEMU_OPTION_icount:
3429 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3430 optarg, true);
3431 if (!icount_opts) {
3432 exit(1);
3433 }
3434 break;
3435 case QEMU_OPTION_incoming:
3436 if (!incoming) {
3437 runstate_set(RUN_STATE_INMIGRATE);
3438 }
3439 incoming = optarg;
3440 break;
3441 case QEMU_OPTION_only_migratable:
3442 only_migratable = 1;
3443 break;
3444 case QEMU_OPTION_nodefaults:
3445 has_defaults = 0;
3446 break;
3447 case QEMU_OPTION_xen_domid:
3448 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3449 error_report("Option not supported for this target");
3450 exit(1);
3451 }
3452 xen_domid = atoi(optarg);
3453 break;
3454 case QEMU_OPTION_xen_attach:
3455 if (!(accel_find("xen"))) {
3456 error_report("Option not supported for this target");
3457 exit(1);
3458 }
3459 xen_mode = XEN_ATTACH;
3460 break;
3461 case QEMU_OPTION_xen_domid_restrict:
3462 if (!(accel_find("xen"))) {
3463 error_report("Option not supported for this target");
3464 exit(1);
3465 }
3466 xen_domid_restrict = true;
3467 break;
3468 case QEMU_OPTION_trace:
3469 trace_opt_parse(optarg);
3470 break;
3471 case QEMU_OPTION_plugin:
3472 qemu_plugin_opt_parse(optarg, &plugin_list);
3473 break;
3474 case QEMU_OPTION_readconfig:
3475 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3476 break;
3477 #ifdef CONFIG_SPICE
3478 case QEMU_OPTION_spice:
3479 olist = qemu_find_opts_err("spice", NULL);
3480 if (!olist) {
3481 error_report("spice support is disabled");
3482 exit(1);
3483 }
3484 opts = qemu_opts_parse_noisily(olist, optarg, false);
3485 if (!opts) {
3486 exit(1);
3487 }
3488 display_remote++;
3489 break;
3490 #endif
3491 case QEMU_OPTION_qtest:
3492 qtest_chrdev = optarg;
3493 break;
3494 case QEMU_OPTION_qtest_log:
3495 qtest_log = optarg;
3496 break;
3497 case QEMU_OPTION_sandbox:
3498 olist = qemu_find_opts("sandbox");
3499 if (!olist) {
3500 #ifndef CONFIG_SECCOMP
3501 error_report("-sandbox support is not enabled "
3502 "in this QEMU binary");
3503 #endif
3504 exit(1);
3505 }
3506
3507 opts = qemu_opts_parse_noisily(olist, optarg, true);
3508 if (!opts) {
3509 exit(1);
3510 }
3511 break;
3512 case QEMU_OPTION_add_fd:
3513 #ifndef _WIN32
3514 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3515 optarg, false);
3516 if (!opts) {
3517 exit(1);
3518 }
3519 #else
3520 error_report("File descriptor passing is disabled on this "
3521 "platform");
3522 exit(1);
3523 #endif
3524 break;
3525 case QEMU_OPTION_object:
3526 object_option_parse(optarg);
3527 break;
3528 case QEMU_OPTION_overcommit:
3529 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3530 optarg, false);
3531 if (!opts) {
3532 exit(1);
3533 }
3534 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3535 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3536 break;
3537 case QEMU_OPTION_compat:
3538 {
3539 CompatPolicy *opts_policy;
3540 Visitor *v;
3541
3542 v = qobject_input_visitor_new_str(optarg, NULL,
3543 &error_fatal);
3544
3545 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3546 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3547
3548 qapi_free_CompatPolicy(opts_policy);
3549 visit_free(v);
3550 break;
3551 }
3552 case QEMU_OPTION_msg:
3553 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3554 false);
3555 if (!opts) {
3556 exit(1);
3557 }
3558 configure_msg(opts);
3559 break;
3560 case QEMU_OPTION_dump_vmstate:
3561 if (vmstate_dump_file) {
3562 error_report("only one '-dump-vmstate' "
3563 "option may be given");
3564 exit(1);
3565 }
3566 vmstate_dump_file = fopen(optarg, "w");
3567 if (vmstate_dump_file == NULL) {
3568 error_report("open %s: %s", optarg, strerror(errno));
3569 exit(1);
3570 }
3571 break;
3572 case QEMU_OPTION_enable_sync_profile:
3573 qsp_enable();
3574 break;
3575 case QEMU_OPTION_nouserconfig:
3576 /* Nothing to be parsed here. Especially, do not error out below. */
3577 break;
3578 #if defined(CONFIG_POSIX)
3579 case QEMU_OPTION_runas:
3580 if (!os_set_runas(optarg)) {
3581 error_report("User \"%s\" doesn't exist"
3582 " (and is not <uid>:<gid>)",
3583 optarg);
3584 exit(1);
3585 }
3586 break;
3587 case QEMU_OPTION_chroot:
3588 warn_report("option is deprecated,"
3589 " use '-run-with chroot=...' instead");
3590 os_set_chroot(optarg);
3591 break;
3592 case QEMU_OPTION_daemonize:
3593 os_set_daemonize(true);
3594 break;
3595 #if defined(CONFIG_LINUX)
3596 /* deprecated */
3597 case QEMU_OPTION_asyncteardown:
3598 init_async_teardown();
3599 break;
3600 #endif
3601 case QEMU_OPTION_run_with: {
3602 const char *str;
3603 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3604 optarg, false);
3605 if (!opts) {
3606 exit(1);
3607 }
3608 #if defined(CONFIG_LINUX)
3609 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3610 init_async_teardown();
3611 }
3612 #endif
3613 str = qemu_opt_get(opts, "chroot");
3614 if (str) {
3615 os_set_chroot(str);
3616 }
3617 break;
3618 }
3619 #endif /* CONFIG_POSIX */
3620
3621 default:
3622 error_report("Option not supported in this build");
3623 exit(1);
3624 }
3625 }
3626 }
3627 /*
3628 * Clear error location left behind by the loop.
3629 * Best done right after the loop. Do not insert code here!
3630 */
3631 loc_set_none();
3632
3633 qemu_validate_options(machine_opts_dict);
3634 qemu_process_sugar_options();
3635
3636 /*
3637 * These options affect everything else and should be processed
3638 * before daemonizing.
3639 */
3640 qemu_process_early_options();
3641
3642 qemu_process_help_options();
3643 qemu_maybe_daemonize(pid_file);
3644
3645 /*
3646 * The trace backend must be initialized after daemonizing.
3647 * trace_init_backends() will call st_init(), which will create the
3648 * trace thread in the parent, and also register st_flush_trace_buffer()
3649 * in atexit(). This function will force the parent to wait for the
3650 * writeout thread to finish, which will not occur, and the parent
3651 * process will be left in the host.
3652 */
3653 if (!trace_init_backends()) {
3654 exit(1);
3655 }
3656 trace_init_file();
3657
3658 qemu_init_main_loop(&error_fatal);
3659 cpu_timers_init();
3660
3661 user_register_global_props();
3662 replay_configure(icount_opts);
3663
3664 configure_rtc(qemu_find_opts_singleton("rtc"));
3665
3666 /* Transfer QemuOpts options into machine options */
3667 parse_memory_options();
3668
3669 qemu_create_machine(machine_opts_dict);
3670
3671 suspend_mux_open();
3672
3673 qemu_disable_default_devices();
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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