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.gitlab-ci.d/buildtest.yml: Work around htags bug when environment is large
[qemu/kevin.git] / system / vl.c
blob53850a1dafee576264c4221fedb1de56fb108916
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 = "xen-console", .flag = &default_serial },
202 { .driver = "isa-serial", .flag = &default_serial },
203 { .driver = "isa-parallel", .flag = &default_parallel },
204 { .driver = "isa-fdc", .flag = &default_floppy },
205 { .driver = "floppy", .flag = &default_floppy },
206 { .driver = "ide-cd", .flag = &default_cdrom },
207 { .driver = "ide-hd", .flag = &default_cdrom },
208 { .driver = "scsi-cd", .flag = &default_cdrom },
209 { .driver = "scsi-hd", .flag = &default_cdrom },
210 { .driver = "VGA", .flag = &default_vga },
211 { .driver = "isa-vga", .flag = &default_vga },
212 { .driver = "cirrus-vga", .flag = &default_vga },
213 { .driver = "isa-cirrus-vga", .flag = &default_vga },
214 { .driver = "vmware-svga", .flag = &default_vga },
215 { .driver = "qxl-vga", .flag = &default_vga },
216 { .driver = "virtio-vga", .flag = &default_vga },
217 { .driver = "ati-vga", .flag = &default_vga },
218 { .driver = "vhost-user-vga", .flag = &default_vga },
219 { .driver = "virtio-vga-gl", .flag = &default_vga },
220 { .driver = "virtio-vga-rutabaga", .flag = &default_vga },
221 };
222
223 static QemuOptsList qemu_rtc_opts = {
224 .name = "rtc",
225 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
226 .merge_lists = true,
227 .desc = {
228 {
229 .name = "base",
230 .type = QEMU_OPT_STRING,
231 },{
232 .name = "clock",
233 .type = QEMU_OPT_STRING,
234 },{
235 .name = "driftfix",
236 .type = QEMU_OPT_STRING,
237 },
238 { /* end of list */ }
239 },
240 };
241
242 static QemuOptsList qemu_option_rom_opts = {
243 .name = "option-rom",
244 .implied_opt_name = "romfile",
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
246 .desc = {
247 {
248 .name = "bootindex",
249 .type = QEMU_OPT_NUMBER,
250 }, {
251 .name = "romfile",
252 .type = QEMU_OPT_STRING,
253 },
254 { /* end of list */ }
255 },
256 };
257
258 static QemuOptsList qemu_accel_opts = {
259 .name = "accel",
260 .implied_opt_name = "accel",
261 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
262 .desc = {
263 /*
264 * no elements => accept any
265 * sanity checking will happen later
266 * when setting accelerator properties
267 */
268 { }
269 },
270 };
271
272 static QemuOptsList qemu_boot_opts = {
273 .name = "boot-opts",
274 .implied_opt_name = "order",
275 .merge_lists = true,
276 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
277 .desc = {
278 {
279 .name = "order",
280 .type = QEMU_OPT_STRING,
281 }, {
282 .name = "once",
283 .type = QEMU_OPT_STRING,
284 }, {
285 .name = "menu",
286 .type = QEMU_OPT_BOOL,
287 }, {
288 .name = "splash",
289 .type = QEMU_OPT_STRING,
290 }, {
291 .name = "splash-time",
292 .type = QEMU_OPT_NUMBER,
293 }, {
294 .name = "reboot-timeout",
295 .type = QEMU_OPT_NUMBER,
296 }, {
297 .name = "strict",
298 .type = QEMU_OPT_BOOL,
299 },
300 { /*End of list */ }
301 },
302 };
303
304 static QemuOptsList qemu_add_fd_opts = {
305 .name = "add-fd",
306 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
307 .desc = {
308 {
309 .name = "fd",
310 .type = QEMU_OPT_NUMBER,
311 .help = "file descriptor of which a duplicate is added to fd set",
312 },{
313 .name = "set",
314 .type = QEMU_OPT_NUMBER,
315 .help = "ID of the fd set to add fd to",
316 },{
317 .name = "opaque",
318 .type = QEMU_OPT_STRING,
319 .help = "free-form string used to describe fd",
320 },
321 { /* end of list */ }
322 },
323 };
324
325 static QemuOptsList qemu_object_opts = {
326 .name = "object",
327 .implied_opt_name = "qom-type",
328 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
329 .desc = {
330 { }
331 },
332 };
333
334 static QemuOptsList qemu_tpmdev_opts = {
335 .name = "tpmdev",
336 .implied_opt_name = "type",
337 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
338 .desc = {
339 /* options are defined in the TPM backends */
340 { /* end of list */ }
341 },
342 };
343
344 static QemuOptsList qemu_overcommit_opts = {
345 .name = "overcommit",
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
347 .desc = {
348 {
349 .name = "mem-lock",
350 .type = QEMU_OPT_BOOL,
351 },
352 {
353 .name = "cpu-pm",
354 .type = QEMU_OPT_BOOL,
355 },
356 { /* end of list */ }
357 },
358 };
359
360 static QemuOptsList qemu_msg_opts = {
361 .name = "msg",
362 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
363 .desc = {
364 {
365 .name = "timestamp",
366 .type = QEMU_OPT_BOOL,
367 },
368 {
369 .name = "guest-name",
370 .type = QEMU_OPT_BOOL,
371 .help = "Prepends guest name for error messages but only if "
372 "-name guest is set otherwise option is ignored\n",
373 },
374 { /* end of list */ }
375 },
376 };
377
378 static QemuOptsList qemu_name_opts = {
379 .name = "name",
380 .implied_opt_name = "guest",
381 .merge_lists = true,
382 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
383 .desc = {
384 {
385 .name = "guest",
386 .type = QEMU_OPT_STRING,
387 .help = "Sets the name of the guest.\n"
388 "This name will be displayed in the SDL window caption.\n"
389 "The name will also be used for the VNC server",
390 }, {
391 .name = "process",
392 .type = QEMU_OPT_STRING,
393 .help = "Sets the name of the QEMU process, as shown in top etc",
394 }, {
395 .name = "debug-threads",
396 .type = QEMU_OPT_BOOL,
397 .help = "When enabled, name the individual threads; defaults off.\n"
398 "NOTE: The thread names are for debugging and not a\n"
399 "stable API.",
400 },
401 { /* End of list */ }
402 },
403 };
404
405 static QemuOptsList qemu_mem_opts = {
406 .name = "memory",
407 .implied_opt_name = "size",
408 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
409 .merge_lists = true,
410 .desc = {
411 {
412 .name = "size",
413 .type = QEMU_OPT_SIZE,
414 },
415 {
416 .name = "slots",
417 .type = QEMU_OPT_NUMBER,
418 },
419 {
420 .name = "maxmem",
421 .type = QEMU_OPT_SIZE,
422 },
423 { /* end of list */ }
424 },
425 };
426
427 static QemuOptsList qemu_icount_opts = {
428 .name = "icount",
429 .implied_opt_name = "shift",
430 .merge_lists = true,
431 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
432 .desc = {
433 {
434 .name = "shift",
435 .type = QEMU_OPT_STRING,
436 }, {
437 .name = "align",
438 .type = QEMU_OPT_BOOL,
439 }, {
440 .name = "sleep",
441 .type = QEMU_OPT_BOOL,
442 }, {
443 .name = "rr",
444 .type = QEMU_OPT_STRING,
445 }, {
446 .name = "rrfile",
447 .type = QEMU_OPT_STRING,
448 }, {
449 .name = "rrsnapshot",
450 .type = QEMU_OPT_STRING,
451 },
452 { /* end of list */ }
453 },
454 };
455
456 static QemuOptsList qemu_fw_cfg_opts = {
457 .name = "fw_cfg",
458 .implied_opt_name = "name",
459 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
460 .desc = {
461 {
462 .name = "name",
463 .type = QEMU_OPT_STRING,
464 .help = "Sets the fw_cfg name of the blob to be inserted",
465 }, {
466 .name = "file",
467 .type = QEMU_OPT_STRING,
468 .help = "Sets the name of the file from which "
469 "the fw_cfg blob will be loaded",
470 }, {
471 .name = "string",
472 .type = QEMU_OPT_STRING,
473 .help = "Sets content of the blob to be inserted from a string",
474 }, {
475 .name = "gen_id",
476 .type = QEMU_OPT_STRING,
477 .help = "Sets id of the object generating the fw_cfg blob "
478 "to be inserted",
479 },
480 { /* end of list */ }
481 },
482 };
483
484 static QemuOptsList qemu_action_opts = {
485 .name = "action",
486 .merge_lists = true,
487 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
488 .desc = {
489 {
490 .name = "shutdown",
491 .type = QEMU_OPT_STRING,
492 },{
493 .name = "reboot",
494 .type = QEMU_OPT_STRING,
495 },{
496 .name = "panic",
497 .type = QEMU_OPT_STRING,
498 },{
499 .name = "watchdog",
500 .type = QEMU_OPT_STRING,
501 },
502 { /* end of list */ }
503 },
504 };
505
506 const char *qemu_get_vm_name(void)
507 {
508 return qemu_name;
509 }
510
511 static void default_driver_disable(const char *driver)
512 {
513 int i;
514
515 if (!driver) {
516 return;
517 }
518
519 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
520 if (strcmp(default_list[i].driver, driver) != 0)
521 continue;
522 *(default_list[i].flag) = 0;
523 }
524 }
525
526 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
527 {
528 const char *driver = qemu_opt_get(opts, "driver");
529
530 default_driver_disable(driver);
531 return 0;
532 }
533
534 static void default_driver_check_json(void)
535 {
536 DeviceOption *opt;
537
538 QTAILQ_FOREACH(opt, &device_opts, next) {
539 const char *driver = qdict_get_try_str(opt->opts, "driver");
540 default_driver_disable(driver);
541 }
542 }
543
544 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
545 {
546 const char *proc_name;
547
548 if (qemu_opt_get(opts, "debug-threads")) {
549 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
550 }
551 qemu_name = qemu_opt_get(opts, "guest");
552
553 proc_name = qemu_opt_get(opts, "process");
554 if (proc_name) {
555 os_set_proc_name(proc_name);
556 }
557
558 return 0;
559 }
560
561 bool defaults_enabled(void)
562 {
563 return has_defaults;
564 }
565
566 #ifndef _WIN32
567 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
568 {
569 int fd, dupfd, flags;
570 int64_t fdset_id;
571 const char *fd_opaque = NULL;
572 AddfdInfo *fdinfo;
573
574 fd = qemu_opt_get_number(opts, "fd", -1);
575 fdset_id = qemu_opt_get_number(opts, "set", -1);
576 fd_opaque = qemu_opt_get(opts, "opaque");
577
578 if (fd < 0) {
579 error_setg(errp, "fd option is required and must be non-negative");
580 return -1;
581 }
582
583 if (fd <= STDERR_FILENO) {
584 error_setg(errp, "fd cannot be a standard I/O stream");
585 return -1;
586 }
587
588 /*
589 * All fds inherited across exec() necessarily have FD_CLOEXEC
590 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
591 */
592 flags = fcntl(fd, F_GETFD);
593 if (flags == -1 || (flags & FD_CLOEXEC)) {
594 error_setg(errp, "fd is not valid or already in use");
595 return -1;
596 }
597
598 if (fdset_id < 0) {
599 error_setg(errp, "set option is required and must be non-negative");
600 return -1;
601 }
602
603 #ifdef F_DUPFD_CLOEXEC
604 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
605 #else
606 dupfd = dup(fd);
607 if (dupfd != -1) {
608 qemu_set_cloexec(dupfd);
609 }
610 #endif
611 if (dupfd == -1) {
612 error_setg(errp, "error duplicating fd: %s", strerror(errno));
613 return -1;
614 }
615
616 /* add the duplicate fd, and optionally the opaque string, to the fd set */
617 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque,
618 &error_abort);
619 g_free(fdinfo);
620
621 return 0;
622 }
623
624 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
625 {
626 int fd;
627
628 fd = qemu_opt_get_number(opts, "fd", -1);
629 close(fd);
630
631 return 0;
632 }
633 #endif
634
635 /***********************************************************/
636 /* QEMU Block devices */
637
638 #define HD_OPTS "media=disk"
639 #define CDROM_OPTS "media=cdrom"
640 #define FD_OPTS ""
641 #define PFLASH_OPTS ""
642 #define MTD_OPTS ""
643 #define SD_OPTS ""
644
645 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
646 {
647 BlockInterfaceType *block_default_type = opaque;
648
649 return drive_new(opts, *block_default_type, errp) == NULL;
650 }
651
652 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
653 {
654 if (qemu_opt_get(opts, "snapshot") == NULL) {
655 qemu_opt_set(opts, "snapshot", "on", &error_abort);
656 }
657 return 0;
658 }
659
660 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
661 int index, const char *optstr)
662 {
663 QemuOpts *opts;
664 DriveInfo *dinfo;
665
666 if (!enable || drive_get_by_index(type, index)) {
667 return;
668 }
669
670 opts = drive_add(type, index, NULL, optstr);
671 if (snapshot) {
672 drive_enable_snapshot(NULL, opts, NULL);
673 }
674
675 dinfo = drive_new(opts, type, &error_abort);
676 dinfo->is_default = true;
677
678 }
679
680 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
681 MachineClass *machine_class, int snapshot)
682 {
683 /*
684 * If the currently selected machine wishes to override the
685 * units-per-bus property of its default HBA interface type, do so
686 * now.
687 */
688 if (machine_class->units_per_default_bus) {
689 override_max_devs(machine_class->block_default_type,
690 machine_class->units_per_default_bus);
691 }
692
693 /* open the virtual block devices */
694 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
695 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
696
697 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
698 loc_push_restore(&bdo->loc);
699 qmp_blockdev_add(bdo->bdo, &error_fatal);
700 loc_pop(&bdo->loc);
701 qapi_free_BlockdevOptions(bdo->bdo);
702 g_free(bdo);
703 }
704 if (snapshot) {
705 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
706 NULL, NULL);
707 }
708 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
709 &machine_class->block_default_type, &error_fatal)) {
710 /* We printed help */
711 exit(0);
712 }
713
714 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
715 CDROM_OPTS);
716 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
717 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
718
719 }
720
721 static QemuOptsList qemu_smp_opts = {
722 .name = "smp-opts",
723 .implied_opt_name = "cpus",
724 .merge_lists = true,
725 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
726 .desc = {
727 {
728 .name = "cpus",
729 .type = QEMU_OPT_NUMBER,
730 }, {
731 .name = "drawers",
732 .type = QEMU_OPT_NUMBER,
733 }, {
734 .name = "books",
735 .type = QEMU_OPT_NUMBER,
736 }, {
737 .name = "sockets",
738 .type = QEMU_OPT_NUMBER,
739 }, {
740 .name = "dies",
741 .type = QEMU_OPT_NUMBER,
742 }, {
743 .name = "clusters",
744 .type = QEMU_OPT_NUMBER,
745 }, {
746 .name = "cores",
747 .type = QEMU_OPT_NUMBER,
748 }, {
749 .name = "threads",
750 .type = QEMU_OPT_NUMBER,
751 }, {
752 .name = "maxcpus",
753 .type = QEMU_OPT_NUMBER,
754 },
755 { /*End of list */ }
756 },
757 };
758
759 #if defined(CONFIG_POSIX)
760 static QemuOptsList qemu_run_with_opts = {
761 .name = "run-with",
762 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
763 .desc = {
764 #if defined(CONFIG_LINUX)
765 {
766 .name = "async-teardown",
767 .type = QEMU_OPT_BOOL,
768 },
769 #endif
770 {
771 .name = "chroot",
772 .type = QEMU_OPT_STRING,
773 },
774 { /* end of list */ }
775 },
776 };
777
778 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
779
780 #else
781
782 #define qemu_add_run_with_opts()
783
784 #endif /* CONFIG_POSIX */
785
786 static void realtime_init(void)
787 {
788 if (enable_mlock) {
789 if (os_mlock() < 0) {
790 error_report("locking memory failed");
791 exit(1);
792 }
793 }
794 }
795
796
797 static void configure_msg(QemuOpts *opts)
798 {
799 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
800 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
801 }
802
803
804 /***********************************************************/
805 /* USB devices */
806
807 static int usb_device_add(const char *devname)
808 {
809 USBDevice *dev = NULL;
810
811 if (!machine_usb(current_machine)) {
812 return -1;
813 }
814
815 dev = usbdevice_create(devname);
816 if (!dev)
817 return -1;
818
819 return 0;
820 }
821
822 static int usb_parse(const char *cmdline)
823 {
824 int r;
825 r = usb_device_add(cmdline);
826 if (r < 0) {
827 error_report("could not add USB device '%s'", cmdline);
828 }
829 return r;
830 }
831
832 /***********************************************************/
833 /* machine registration */
834
835 static MachineClass *find_machine(const char *name, GSList *machines)
836 {
837 GSList *el;
838
839 for (el = machines; el; el = el->next) {
840 MachineClass *mc = el->data;
841
842 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
843 return mc;
844 }
845 }
846
847 return NULL;
848 }
849
850 static MachineClass *find_default_machine(GSList *machines)
851 {
852 GSList *el;
853 MachineClass *default_machineclass = NULL;
854
855 for (el = machines; el; el = el->next) {
856 MachineClass *mc = el->data;
857
858 if (mc->is_default) {
859 assert(default_machineclass == NULL && "Multiple default machines");
860 default_machineclass = mc;
861 }
862 }
863
864 return default_machineclass;
865 }
866
867 static void version(void)
868 {
869 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
870 QEMU_COPYRIGHT "\n");
871 }
872
873 static void help(int exitcode)
874 {
875 version();
876 printf("usage: %s [options] [disk_image]\n\n"
877 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
878 g_get_prgname());
879
880 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
881 if ((arch_mask) & arch_type) \
882 fputs(opt_help, stdout);
883
884 #define ARCHHEADING(text, arch_mask) \
885 if ((arch_mask) & arch_type) \
886 puts(stringify(text));
887
888 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
889
890 #include "qemu-options.def"
891
892 printf("\nDuring emulation, the following keys are useful:\n"
893 "ctrl-alt-f toggle full screen\n"
894 "ctrl-alt-n switch to virtual console 'n'\n"
895 "ctrl-alt toggle mouse and keyboard grab\n"
896 "\n"
897 "When using -nographic, press 'ctrl-a h' to get some help.\n"
898 "\n"
899 QEMU_HELP_BOTTOM "\n");
900
901 exit(exitcode);
902 }
903
904 enum {
905
906 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
907 opt_enum,
908 #define DEFHEADING(text)
909 #define ARCHHEADING(text, arch_mask)
910
911 #include "qemu-options.def"
912 };
913
914 #define HAS_ARG 0x0001
915
916 typedef struct QEMUOption {
917 const char *name;
918 int flags;
919 int index;
920 uint32_t arch_mask;
921 } QEMUOption;
922
923 static const QEMUOption qemu_options[] = {
924 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
925
926 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
927 { option, opt_arg, opt_enum, arch_mask },
928 #define DEFHEADING(text)
929 #define ARCHHEADING(text, arch_mask)
930
931 #include "qemu-options.def"
932 { /* end of list */ }
933 };
934
935 typedef struct VGAInterfaceInfo {
936 const char *opt_name; /* option name */
937 const char *name; /* human-readable name */
938 /* Class names indicating that support is available.
939 * If no class is specified, the interface is always available */
940 const char *class_names[2];
941 } VGAInterfaceInfo;
942
943 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
944 [VGA_NONE] = {
945 .opt_name = "none",
946 .name = "no graphic card",
947 },
948 [VGA_STD] = {
949 .opt_name = "std",
950 .name = "standard VGA",
951 .class_names = { "VGA", "isa-vga" },
952 },
953 [VGA_CIRRUS] = {
954 .opt_name = "cirrus",
955 .name = "Cirrus VGA",
956 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
957 },
958 [VGA_VMWARE] = {
959 .opt_name = "vmware",
960 .name = "VMWare SVGA",
961 .class_names = { "vmware-svga" },
962 },
963 [VGA_VIRTIO] = {
964 .opt_name = "virtio",
965 .name = "Virtio VGA",
966 .class_names = { "virtio-vga" },
967 },
968 [VGA_QXL] = {
969 .opt_name = "qxl",
970 .name = "QXL VGA",
971 .class_names = { "qxl-vga" },
972 },
973 [VGA_TCX] = {
974 .opt_name = "tcx",
975 .name = "TCX framebuffer",
976 .class_names = { "sun-tcx" },
977 },
978 [VGA_CG3] = {
979 .opt_name = "cg3",
980 .name = "CG3 framebuffer",
981 .class_names = { "cgthree" },
982 },
983 #ifdef CONFIG_XEN_BACKEND
984 [VGA_XENFB] = {
985 .opt_name = "xenfb",
986 .name = "Xen paravirtualized framebuffer",
987 },
988 #endif
989 };
990
991 static bool vga_interface_available(VGAInterfaceType t)
992 {
993 const VGAInterfaceInfo *ti = &vga_interfaces[t];
994
995 assert(t < VGA_TYPE_MAX);
996 return !ti->class_names[0] ||
997 module_object_class_by_name(ti->class_names[0]) ||
998 module_object_class_by_name(ti->class_names[1]);
999 }
1000
1001 static const char *
1002 get_default_vga_model(const MachineClass *machine_class)
1003 {
1004 if (machine_class->default_display) {
1005 for (int t = 0; t < VGA_TYPE_MAX; t++) {
1006 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1007
1008 if (ti->opt_name && vga_interface_available(t) &&
1009 g_str_equal(ti->opt_name, machine_class->default_display)) {
1010 return machine_class->default_display;
1011 }
1012 }
1013
1014 warn_report_once("Default display '%s' is not available in this binary",
1015 machine_class->default_display);
1016 return NULL;
1017 } else if (vga_interface_available(VGA_CIRRUS)) {
1018 return "cirrus";
1019 } else if (vga_interface_available(VGA_STD)) {
1020 return "std";
1021 }
1022
1023 return NULL;
1024 }
1025
1026 static void select_vgahw(const MachineClass *machine_class, const char *p)
1027 {
1028 const char *opts;
1029 int t;
1030
1031 if (g_str_equal(p, "help")) {
1032 const char *def = get_default_vga_model(machine_class);
1033
1034 for (t = 0; t < VGA_TYPE_MAX; t++) {
1035 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1036
1037 if (vga_interface_available(t) && ti->opt_name) {
1038 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1039 (def && g_str_equal(ti->opt_name, def)) ?
1040 " (default)" : "");
1041 }
1042 }
1043 exit(0);
1044 }
1045
1046 assert(vga_interface_type == VGA_NONE);
1047 for (t = 0; t < VGA_TYPE_MAX; t++) {
1048 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1049 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1050 if (!vga_interface_available(t)) {
1051 error_report("%s not available", ti->name);
1052 exit(1);
1053 }
1054 vga_interface_type = t;
1055 break;
1056 }
1057 }
1058 if (t == VGA_TYPE_MAX) {
1059 invalid_vga:
1060 error_report("unknown vga type: %s", p);
1061 exit(1);
1062 }
1063 while (*opts) {
1064 const char *nextopt;
1065
1066 if (strstart(opts, ",retrace=", &nextopt)) {
1067 opts = nextopt;
1068 if (strstart(opts, "dumb", &nextopt))
1069 vga_retrace_method = VGA_RETRACE_DUMB;
1070 else if (strstart(opts, "precise", &nextopt))
1071 vga_retrace_method = VGA_RETRACE_PRECISE;
1072 else goto invalid_vga;
1073 } else goto invalid_vga;
1074 opts = nextopt;
1075 }
1076 }
1077
1078 static void parse_display_qapi(const char *str)
1079 {
1080 DisplayOptions *opts;
1081 Visitor *v;
1082
1083 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1084
1085 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1086 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1087
1088 qapi_free_DisplayOptions(opts);
1089 visit_free(v);
1090 }
1091
1092 DisplayOptions *qmp_query_display_options(Error **errp)
1093 {
1094 return QAPI_CLONE(DisplayOptions, &dpy);
1095 }
1096
1097 static void parse_display(const char *p)
1098 {
1099 if (is_help_option(p)) {
1100 qemu_display_help();
1101 exit(0);
1102 }
1103
1104 #ifdef CONFIG_VNC
1105 const char *opts;
1106
1107 if (strstart(p, "vnc", &opts)) {
1108 /*
1109 * vnc isn't a (local) DisplayType but a protocol for remote
1110 * display access.
1111 */
1112 if (*opts == '=') {
1113 vnc_parse(opts + 1);
1114 display_remote++;
1115 } else {
1116 error_report("VNC requires a display argument vnc=<display>");
1117 exit(1);
1118 }
1119 return;
1120 }
1121 #endif
1122
1123 parse_display_qapi(p);
1124 }
1125
1126 static inline bool nonempty_str(const char *str)
1127 {
1128 return str && *str;
1129 }
1130
1131 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1132 {
1133 gchar *buf;
1134 size_t size;
1135 const char *name, *file, *str, *gen_id;
1136 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1137
1138 if (fw_cfg == NULL) {
1139 error_setg(errp, "fw_cfg device not available");
1140 return -1;
1141 }
1142 name = qemu_opt_get(opts, "name");
1143 file = qemu_opt_get(opts, "file");
1144 str = qemu_opt_get(opts, "string");
1145 gen_id = qemu_opt_get(opts, "gen_id");
1146
1147 /* we need the name, and exactly one of: file, content string, gen_id */
1148 if (!nonempty_str(name) ||
1149 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1150 error_setg(errp, "name, plus exactly one of file,"
1151 " string and gen_id, are needed");
1152 return -1;
1153 }
1154 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1155 error_setg(errp, "name too long (max. %d char)",
1156 FW_CFG_MAX_FILE_PATH - 1);
1157 return -1;
1158 }
1159 if (nonempty_str(gen_id)) {
1160 /*
1161 * In this particular case where the content is populated
1162 * internally, the "etc/" namespace protection is relaxed,
1163 * so do not emit a warning.
1164 */
1165 } else if (strncmp(name, "opt/", 4) != 0) {
1166 warn_report("externally provided fw_cfg item names "
1167 "should be prefixed with \"opt/\"");
1168 }
1169 if (nonempty_str(str)) {
1170 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1171 buf = g_memdup(str, size);
1172 } else if (nonempty_str(gen_id)) {
1173 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1174 return -1;
1175 }
1176 return 0;
1177 } else {
1178 GError *err = NULL;
1179 if (!g_file_get_contents(file, &buf, &size, &err)) {
1180 error_setg(errp, "can't load %s: %s", file, err->message);
1181 g_error_free(err);
1182 return -1;
1183 }
1184 }
1185 /* For legacy, keep user files in a specific global order. */
1186 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1187 fw_cfg_add_file(fw_cfg, name, buf, size);
1188 fw_cfg_reset_order_override(fw_cfg);
1189 return 0;
1190 }
1191
1192 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1193 {
1194 return qdev_device_help(opts);
1195 }
1196
1197 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1198 {
1199 DeviceState *dev;
1200
1201 dev = qdev_device_add(opts, errp);
1202 if (!dev && *errp) {
1203 error_report_err(*errp);
1204 return -1;
1205 } else if (dev) {
1206 object_unref(OBJECT(dev));
1207 }
1208 return 0;
1209 }
1210
1211 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1212 {
1213 Error *local_err = NULL;
1214
1215 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1216 if (local_err) {
1217 error_propagate(errp, local_err);
1218 return -1;
1219 }
1220 exit(0);
1221 }
1222 return 0;
1223 }
1224
1225 #ifdef CONFIG_VIRTFS
1226 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1227 {
1228 return qemu_fsdev_add(opts, errp);
1229 }
1230 #endif
1231
1232 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1233 {
1234 return monitor_init_opts(opts, errp);
1235 }
1236
1237 static void monitor_parse(const char *str, const char *mode, bool pretty)
1238 {
1239 static int monitor_device_index = 0;
1240 QemuOpts *opts;
1241 const char *p;
1242 char label[32];
1243
1244 if (strstart(str, "chardev:", &p)) {
1245 snprintf(label, sizeof(label), "%s", p);
1246 } else {
1247 snprintf(label, sizeof(label), "compat_monitor%d",
1248 monitor_device_index);
1249 opts = qemu_chr_parse_compat(label, str, true);
1250 if (!opts) {
1251 error_report("parse error: %s", str);
1252 exit(1);
1253 }
1254 }
1255
1256 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1257 qemu_opt_set(opts, "mode", mode, &error_abort);
1258 qemu_opt_set(opts, "chardev", label, &error_abort);
1259 if (!strcmp(mode, "control")) {
1260 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1261 } else {
1262 assert(pretty == false);
1263 }
1264 monitor_device_index++;
1265 }
1266
1267 struct device_config {
1268 enum {
1269 DEV_USB, /* -usbdevice */
1270 DEV_SERIAL, /* -serial */
1271 DEV_PARALLEL, /* -parallel */
1272 DEV_DEBUGCON, /* -debugcon */
1273 DEV_GDB, /* -gdb, -s */
1274 DEV_SCLP, /* s390 sclp */
1275 } type;
1276 const char *cmdline;
1277 Location loc;
1278 QTAILQ_ENTRY(device_config) next;
1279 };
1280
1281 static QTAILQ_HEAD(, device_config) device_configs =
1282 QTAILQ_HEAD_INITIALIZER(device_configs);
1283
1284 static void add_device_config(int type, const char *cmdline)
1285 {
1286 struct device_config *conf;
1287
1288 conf = g_malloc0(sizeof(*conf));
1289 conf->type = type;
1290 conf->cmdline = cmdline;
1291 loc_save(&conf->loc);
1292 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1293 }
1294
1295 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1296 {
1297 struct device_config *conf;
1298 int rc;
1299
1300 QTAILQ_FOREACH(conf, &device_configs, next) {
1301 if (conf->type != type)
1302 continue;
1303 loc_push_restore(&conf->loc);
1304 rc = func(conf->cmdline);
1305 loc_pop(&conf->loc);
1306 if (rc) {
1307 return rc;
1308 }
1309 }
1310 return 0;
1311 }
1312
1313 static void qemu_disable_default_devices(void)
1314 {
1315 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1316
1317 default_driver_check_json();
1318 qemu_opts_foreach(qemu_find_opts("device"),
1319 default_driver_check, NULL, NULL);
1320 qemu_opts_foreach(qemu_find_opts("global"),
1321 default_driver_check, NULL, NULL);
1322
1323 if (!vga_model && !default_vga) {
1324 vga_interface_type = VGA_DEVICE;
1325 vga_interface_created = true;
1326 }
1327 if (!has_defaults || machine_class->no_serial) {
1328 default_serial = 0;
1329 }
1330 if (!has_defaults || machine_class->no_parallel) {
1331 default_parallel = 0;
1332 }
1333 if (!has_defaults || machine_class->no_floppy) {
1334 default_floppy = 0;
1335 }
1336 if (!has_defaults || machine_class->no_cdrom) {
1337 default_cdrom = 0;
1338 }
1339 if (!has_defaults || machine_class->no_sdcard) {
1340 default_sdcard = 0;
1341 }
1342 if (!has_defaults) {
1343 default_audio = 0;
1344 default_monitor = 0;
1345 default_net = 0;
1346 default_vga = 0;
1347 } else {
1348 if (default_net && machine_class->default_nic &&
1349 !module_object_class_by_name(machine_class->default_nic)) {
1350 warn_report("Default NIC '%s' is not available in this binary",
1351 machine_class->default_nic);
1352 default_net = 0;
1353 }
1354 }
1355 }
1356
1357 static void qemu_setup_display(void)
1358 {
1359 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1360 if (!qemu_display_find_default(&dpy)) {
1361 dpy.type = DISPLAY_TYPE_NONE;
1362 #if defined(CONFIG_VNC)
1363 vnc_parse("localhost:0,to=99,id=default");
1364 display_remote++;
1365 #endif
1366 }
1367 }
1368 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1369 dpy.type = DISPLAY_TYPE_NONE;
1370 }
1371
1372 qemu_display_early_init(&dpy);
1373 }
1374
1375 static void qemu_create_default_devices(void)
1376 {
1377 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1378 const char *vc = qemu_display_get_vc(&dpy);
1379
1380 if (is_daemonized()) {
1381 /* According to documentation and historically, -nographic redirects
1382 * serial port, parallel port and monitor to stdio, which does not work
1383 * with -daemonize. We can redirect these to null instead, but since
1384 * -nographic is legacy, let's just error out.
1385 * We disallow -nographic only if all other ports are not redirected
1386 * explicitly, to not break existing legacy setups which uses
1387 * -nographic _and_ redirects all ports explicitly - this is valid
1388 * usage, -nographic is just a no-op in this case.
1389 */
1390 if (nographic
1391 && (default_parallel || default_serial || default_monitor)) {
1392 error_report("-nographic cannot be used with -daemonize");
1393 exit(1);
1394 }
1395 }
1396
1397 if (nographic) {
1398 if (default_parallel) {
1399 add_device_config(DEV_PARALLEL, "null");
1400 }
1401 if (default_serial && default_monitor) {
1402 add_device_config(DEV_SERIAL, "mon:stdio");
1403 } else {
1404 if (default_serial) {
1405 add_device_config(DEV_SERIAL, "stdio");
1406 }
1407 if (default_monitor) {
1408 monitor_parse("stdio", "readline", false);
1409 }
1410 }
1411 } else {
1412 if (default_serial) {
1413 add_device_config(DEV_SERIAL, vc ?: "null");
1414 }
1415 if (default_parallel) {
1416 add_device_config(DEV_PARALLEL, vc ?: "null");
1417 }
1418 if (default_monitor && vc) {
1419 monitor_parse(vc, "readline", false);
1420 }
1421 }
1422
1423 if (default_net) {
1424 QemuOptsList *net = qemu_find_opts("net");
1425 qemu_opts_parse(net, "nic", true, &error_abort);
1426 #ifdef CONFIG_SLIRP
1427 qemu_opts_parse(net, "user", true, &error_abort);
1428 #endif
1429 }
1430
1431 /* If no default VGA is requested, the default is "none". */
1432 if (default_vga) {
1433 vga_model = get_default_vga_model(machine_class);
1434 }
1435 if (vga_model) {
1436 select_vgahw(machine_class, vga_model);
1437 }
1438 }
1439
1440 static int serial_parse(const char *devname)
1441 {
1442 int index = num_serial_hds;
1443 char label[32];
1444
1445 if (strcmp(devname, "none") == 0)
1446 return 0;
1447 snprintf(label, sizeof(label), "serial%d", index);
1448 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1449
1450 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1451 if (!serial_hds[index]) {
1452 error_report("could not connect serial device"
1453 " to character backend '%s'", devname);
1454 return -1;
1455 }
1456 num_serial_hds++;
1457 return 0;
1458 }
1459
1460 Chardev *serial_hd(int i)
1461 {
1462 assert(i >= 0);
1463 if (i < num_serial_hds) {
1464 return serial_hds[i];
1465 }
1466 return NULL;
1467 }
1468
1469 static int parallel_parse(const char *devname)
1470 {
1471 static int index = 0;
1472 char label[32];
1473
1474 if (strcmp(devname, "none") == 0)
1475 return 0;
1476 if (index == MAX_PARALLEL_PORTS) {
1477 error_report("too many parallel ports");
1478 exit(1);
1479 }
1480 snprintf(label, sizeof(label), "parallel%d", index);
1481 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1482 if (!parallel_hds[index]) {
1483 error_report("could not connect parallel device"
1484 " to character backend '%s'", devname);
1485 return -1;
1486 }
1487 index++;
1488 return 0;
1489 }
1490
1491 static int debugcon_parse(const char *devname)
1492 {
1493 QemuOpts *opts;
1494
1495 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1496 error_report("invalid character backend '%s'", devname);
1497 exit(1);
1498 }
1499 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1500 if (!opts) {
1501 error_report("already have a debugcon device");
1502 exit(1);
1503 }
1504 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1505 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1506 return 0;
1507 }
1508
1509 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1510 {
1511 const MachineClass *mc1 = a, *mc2 = b;
1512 int res;
1513
1514 if (mc1->family == NULL) {
1515 if (mc2->family == NULL) {
1516 /* Compare standalone machine types against each other; they sort
1517 * in increasing order.
1518 */
1519 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1520 object_class_get_name(OBJECT_CLASS(mc2)));
1521 }
1522
1523 /* Standalone machine types sort after families. */
1524 return 1;
1525 }
1526
1527 if (mc2->family == NULL) {
1528 /* Families sort before standalone machine types. */
1529 return -1;
1530 }
1531
1532 /* Families sort between each other alphabetically increasingly. */
1533 res = strcmp(mc1->family, mc2->family);
1534 if (res != 0) {
1535 return res;
1536 }
1537
1538 /* Within the same family, machine types sort in decreasing order. */
1539 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1540 object_class_get_name(OBJECT_CLASS(mc1)));
1541 }
1542
1543 static void machine_help_func(const QDict *qdict)
1544 {
1545 g_autoptr(GSList) machines = NULL;
1546 GSList *el;
1547 const char *type = qdict_get_try_str(qdict, "type");
1548
1549 machines = object_class_get_list(TYPE_MACHINE, false);
1550 if (type) {
1551 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1552 if (machine_class) {
1553 type_print_class_properties(object_class_get_name(machine_class));
1554 return;
1555 }
1556 }
1557
1558 printf("Supported machines are:\n");
1559 machines = g_slist_sort(machines, machine_class_cmp);
1560 for (el = machines; el; el = el->next) {
1561 MachineClass *mc = el->data;
1562 if (mc->alias) {
1563 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1564 }
1565 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1566 mc->is_default ? " (default)" : "",
1567 mc->deprecation_reason ? " (deprecated)" : "");
1568 }
1569 }
1570
1571 static void
1572 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1573 {
1574 QDict *opts;
1575
1576 opts = qdict_new();
1577 /* Preserve the caller's reference to prop. */
1578 qobject_ref(prop);
1579 qdict_put(opts, propname, prop);
1580 keyval_merge(machine_opts_dict, opts, errp);
1581 qobject_unref(opts);
1582 }
1583
1584 static void
1585 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1586 const char *arg)
1587 {
1588 QDict *prop = NULL;
1589 bool help = false;
1590
1591 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1592 if (help) {
1593 qemu_opts_print_help(opts_list, true);
1594 exit(0);
1595 }
1596 machine_merge_property(propname, prop, &error_fatal);
1597 qobject_unref(prop);
1598 }
1599
1600 static const char *pid_file;
1601 struct UnlinkPidfileNotifier {
1602 Notifier notifier;
1603 char *pid_file_realpath;
1604 };
1605 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1606
1607 static void qemu_unlink_pidfile(Notifier *n, void *data)
1608 {
1609 struct UnlinkPidfileNotifier *upn;
1610
1611 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1612 unlink(upn->pid_file_realpath);
1613 }
1614
1615 static const QEMUOption *lookup_opt(int argc, char **argv,
1616 const char **poptarg, int *poptind)
1617 {
1618 const QEMUOption *popt;
1619 int optind = *poptind;
1620 char *r = argv[optind];
1621 const char *optarg;
1622
1623 loc_set_cmdline(argv, optind, 1);
1624 optind++;
1625 /* Treat --foo the same as -foo. */
1626 if (r[1] == '-')
1627 r++;
1628 popt = qemu_options;
1629 for(;;) {
1630 if (!popt->name) {
1631 error_report("invalid option");
1632 exit(1);
1633 }
1634 if (!strcmp(popt->name, r + 1))
1635 break;
1636 popt++;
1637 }
1638 if (popt->flags & HAS_ARG) {
1639 if (optind >= argc) {
1640 error_report("requires an argument");
1641 exit(1);
1642 }
1643 optarg = argv[optind++];
1644 loc_set_cmdline(argv, optind - 2, 2);
1645 } else {
1646 optarg = NULL;
1647 }
1648
1649 *poptarg = optarg;
1650 *poptind = optind;
1651
1652 return popt;
1653 }
1654
1655 static MachineClass *select_machine(QDict *qdict, Error **errp)
1656 {
1657 const char *machine_type = qdict_get_try_str(qdict, "type");
1658 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1659 MachineClass *machine_class;
1660 Error *local_err = NULL;
1661
1662 if (machine_type) {
1663 machine_class = find_machine(machine_type, machines);
1664 qdict_del(qdict, "type");
1665 if (!machine_class) {
1666 error_setg(&local_err, "unsupported machine type");
1667 }
1668 } else {
1669 machine_class = find_default_machine(machines);
1670 if (!machine_class) {
1671 error_setg(&local_err, "No machine specified, and there is no default");
1672 }
1673 }
1674
1675 g_slist_free(machines);
1676 if (local_err) {
1677 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1678 error_propagate(errp, local_err);
1679 }
1680 return machine_class;
1681 }
1682
1683 static int object_parse_property_opt(Object *obj,
1684 const char *name, const char *value,
1685 const char *skip, Error **errp)
1686 {
1687 if (g_str_equal(name, skip)) {
1688 return 0;
1689 }
1690
1691 if (!object_property_parse(obj, name, value, errp)) {
1692 return -1;
1693 }
1694
1695 return 0;
1696 }
1697
1698 /* *Non*recursively replace underscores with dashes in QDict keys. */
1699 static void keyval_dashify(QDict *qdict, Error **errp)
1700 {
1701 const QDictEntry *ent, *next;
1702 char *p;
1703
1704 for (ent = qdict_first(qdict); ent; ent = next) {
1705 g_autofree char *new_key = NULL;
1706
1707 next = qdict_next(qdict, ent);
1708 if (!strchr(ent->key, '_')) {
1709 continue;
1710 }
1711 new_key = g_strdup(ent->key);
1712 for (p = new_key; *p; p++) {
1713 if (*p == '_') {
1714 *p = '-';
1715 }
1716 }
1717 if (qdict_haskey(qdict, new_key)) {
1718 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1719 return;
1720 }
1721 qobject_ref(ent->value);
1722 qdict_put_obj(qdict, new_key, ent->value);
1723 qdict_del(qdict, ent->key);
1724 }
1725 }
1726
1727 static void qemu_apply_legacy_machine_options(QDict *qdict)
1728 {
1729 const char *value;
1730 QObject *prop;
1731
1732 keyval_dashify(qdict, &error_fatal);
1733
1734 /* Legacy options do not correspond to MachineState properties. */
1735 value = qdict_get_try_str(qdict, "accel");
1736 if (value) {
1737 accelerators = g_strdup(value);
1738 qdict_del(qdict, "accel");
1739 }
1740
1741 value = qdict_get_try_str(qdict, "igd-passthru");
1742 if (value) {
1743 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1744 false);
1745 qdict_del(qdict, "igd-passthru");
1746 }
1747
1748 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1749 if (value) {
1750 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1751 false);
1752 qdict_del(qdict, "kvm-shadow-mem");
1753 }
1754
1755 value = qdict_get_try_str(qdict, "kernel-irqchip");
1756 if (value) {
1757 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1758 false);
1759 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1760 false);
1761 qdict_del(qdict, "kernel-irqchip");
1762 }
1763
1764 value = qdict_get_try_str(qdict, "memory-backend");
1765 if (value) {
1766 if (mem_path) {
1767 error_report("'-mem-path' can't be used together with"
1768 "'-machine memory-backend'");
1769 exit(EXIT_FAILURE);
1770 }
1771
1772 /* Resolved later. */
1773 ram_memdev_id = g_strdup(value);
1774 qdict_del(qdict, "memory-backend");
1775 }
1776
1777 prop = qdict_get(qdict, "memory");
1778 if (prop) {
1779 have_custom_ram_size =
1780 qobject_type(prop) == QTYPE_QDICT &&
1781 qdict_haskey(qobject_to(QDict, prop), "size");
1782 }
1783 }
1784
1785 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1786 {
1787 ObjectOption *opt, *next;
1788
1789 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1790 const char *type = ObjectType_str(opt->opts->qom_type);
1791 if (type_opt_predicate(type)) {
1792 user_creatable_add_qapi(opt->opts, &error_fatal);
1793 qapi_free_ObjectOptions(opt->opts);
1794 QTAILQ_REMOVE(&object_opts, opt, next);
1795 g_free(opt);
1796 }
1797 }
1798 }
1799
1800 static void object_option_add_visitor(Visitor *v)
1801 {
1802 ObjectOption *opt = g_new0(ObjectOption, 1);
1803 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1804 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1805 }
1806
1807 static void object_option_parse(const char *str)
1808 {
1809 QemuOpts *opts;
1810 const char *type;
1811 Visitor *v;
1812
1813 if (str[0] == '{') {
1814 QObject *obj = qobject_from_json(str, &error_fatal);
1815
1816 v = qobject_input_visitor_new(obj);
1817 qobject_unref(obj);
1818 } else {
1819 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1820 str, true);
1821 if (!opts) {
1822 exit(1);
1823 }
1824
1825 type = qemu_opt_get(opts, "qom-type");
1826 if (!type) {
1827 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1828 }
1829 if (user_creatable_print_help(type, opts)) {
1830 exit(0);
1831 }
1832
1833 v = opts_visitor_new(opts);
1834 }
1835
1836 object_option_add_visitor(v);
1837 visit_free(v);
1838 }
1839
1840 /*
1841 * Very early object creation, before the sandbox options have been activated.
1842 */
1843 static bool object_create_pre_sandbox(const char *type)
1844 {
1845 /*
1846 * Objects should in general not get initialized "too early" without
1847 * a reason. If you add one, state the reason in a comment!
1848 */
1849
1850 /*
1851 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1852 * affinity of threads.
1853 */
1854 if (g_str_equal(type, "thread-context")) {
1855 return true;
1856 }
1857
1858 return false;
1859 }
1860
1861 /*
1862 * Initial object creation happens before all other
1863 * QEMU data types are created. The majority of objects
1864 * can be created at this point. The rng-egd object
1865 * cannot be created here, as it depends on the chardev
1866 * already existing.
1867 */
1868 static bool object_create_early(const char *type)
1869 {
1870 /*
1871 * Objects should not be made "delayed" without a reason. If you
1872 * add one, state the reason in a comment!
1873 */
1874
1875 /* Reason: already created. */
1876 if (object_create_pre_sandbox(type)) {
1877 return false;
1878 }
1879
1880 /* Reason: property "chardev" */
1881 if (g_str_equal(type, "rng-egd") ||
1882 g_str_equal(type, "qtest")) {
1883 return false;
1884 }
1885
1886 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1887 /* Reason: cryptodev-vhost-user property "chardev" */
1888 if (g_str_equal(type, "cryptodev-vhost-user")) {
1889 return false;
1890 }
1891 #endif
1892
1893 /* Reason: vhost-user-blk-server property "node-name" */
1894 if (g_str_equal(type, "vhost-user-blk-server")) {
1895 return false;
1896 }
1897 /*
1898 * Reason: filter-* property "netdev" etc.
1899 */
1900 if (g_str_equal(type, "filter-buffer") ||
1901 g_str_equal(type, "filter-dump") ||
1902 g_str_equal(type, "filter-mirror") ||
1903 g_str_equal(type, "filter-redirector") ||
1904 g_str_equal(type, "colo-compare") ||
1905 g_str_equal(type, "filter-rewriter") ||
1906 g_str_equal(type, "filter-replay")) {
1907 return false;
1908 }
1909
1910 /*
1911 * Allocation of large amounts of memory may delay
1912 * chardev initialization for too long, and trigger timeouts
1913 * on software that waits for a monitor socket to be created
1914 * (e.g. libvirt).
1915 */
1916 if (g_str_has_prefix(type, "memory-backend-")) {
1917 return false;
1918 }
1919
1920 return true;
1921 }
1922
1923 static void qemu_apply_machine_options(QDict *qdict)
1924 {
1925 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1926
1927 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1928 /* fall back to the -kernel/-append */
1929 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1930 }
1931
1932 if (current_machine->smp.cpus > 1) {
1933 replay_add_blocker("smp");
1934 }
1935 }
1936
1937 static void qemu_create_early_backends(void)
1938 {
1939 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1940 #if defined(CONFIG_SDL)
1941 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1942 #else
1943 const bool use_sdl = false;
1944 #endif
1945 #if defined(CONFIG_GTK)
1946 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1947 #else
1948 const bool use_gtk = false;
1949 #endif
1950
1951 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1952 error_report("window-close is only valid for GTK and SDL, "
1953 "ignoring option");
1954 }
1955
1956 qemu_console_early_init();
1957
1958 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1959 #if defined(CONFIG_OPENGL)
1960 error_report("OpenGL is not supported by the display");
1961 #else
1962 error_report("OpenGL support is disabled");
1963 #endif
1964 exit(1);
1965 }
1966
1967 object_option_foreach_add(object_create_early);
1968
1969 /* spice needs the timers to be initialized by this point */
1970 /* spice must initialize before audio as it changes the default audiodev */
1971 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1972 qemu_spice.init();
1973
1974 qemu_opts_foreach(qemu_find_opts("chardev"),
1975 chardev_init_func, NULL, &error_fatal);
1976
1977 #ifdef CONFIG_VIRTFS
1978 qemu_opts_foreach(qemu_find_opts("fsdev"),
1979 fsdev_init_func, NULL, &error_fatal);
1980 #endif
1981
1982 /*
1983 * Note: we need to create audio and block backends before
1984 * setting machine properties, so they can be referred to.
1985 */
1986 configure_blockdev(&bdo_queue, machine_class, snapshot);
1987 audio_init_audiodevs();
1988 if (default_audio) {
1989 audio_create_default_audiodevs();
1990 }
1991 }
1992
1993
1994 /*
1995 * The remainder of object creation happens after the
1996 * creation of chardev, fsdev, net clients and device data types.
1997 */
1998 static bool object_create_late(const char *type)
1999 {
2000 return !object_create_early(type) && !object_create_pre_sandbox(type);
2001 }
2002
2003 static void qemu_create_late_backends(void)
2004 {
2005 if (qtest_chrdev) {
2006 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
2007 }
2008
2009 net_init_clients();
2010
2011 object_option_foreach_add(object_create_late);
2012
2013 if (tpm_init() < 0) {
2014 exit(1);
2015 }
2016
2017 qemu_opts_foreach(qemu_find_opts("mon"),
2018 mon_init_func, NULL, &error_fatal);
2019
2020 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2021 exit(1);
2022 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2023 exit(1);
2024 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2025 exit(1);
2026
2027 /* now chardevs have been created we may have semihosting to connect */
2028 qemu_semihosting_chardev_init();
2029 }
2030
2031 static void qemu_resolve_machine_memdev(void)
2032 {
2033 if (ram_memdev_id) {
2034 Object *backend;
2035 ram_addr_t backend_size;
2036
2037 backend = object_resolve_path_type(ram_memdev_id,
2038 TYPE_MEMORY_BACKEND, NULL);
2039 if (!backend) {
2040 error_report("Memory backend '%s' not found", ram_memdev_id);
2041 exit(EXIT_FAILURE);
2042 }
2043 if (!have_custom_ram_size) {
2044 backend_size = object_property_get_uint(backend, "size", &error_abort);
2045 current_machine->ram_size = backend_size;
2046 }
2047 object_property_set_link(OBJECT(current_machine),
2048 "memory-backend", backend, &error_fatal);
2049 }
2050 }
2051
2052 static void parse_memory_options(void)
2053 {
2054 QemuOpts *opts = qemu_find_opts_singleton("memory");
2055 QDict *dict, *prop;
2056 const char *mem_str;
2057 Location loc;
2058
2059 loc_push_none(&loc);
2060 qemu_opts_loc_restore(opts);
2061
2062 prop = qdict_new();
2063
2064 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2065 /* Fix up legacy suffix-less format */
2066 mem_str = qemu_opt_get(opts, "size");
2067 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2068 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2069 qdict_put_str(prop, "size", mib_str);
2070 } else {
2071 qdict_put_str(prop, "size", mem_str);
2072 }
2073 }
2074
2075 if (qemu_opt_get(opts, "maxmem")) {
2076 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2077 }
2078 if (qemu_opt_get(opts, "slots")) {
2079 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2080 }
2081
2082 dict = qdict_new();
2083 qdict_put(dict, "memory", prop);
2084 keyval_merge(machine_opts_dict, dict, &error_fatal);
2085 qobject_unref(dict);
2086 loc_pop(&loc);
2087 }
2088
2089 static void qemu_create_machine(QDict *qdict)
2090 {
2091 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2092 object_set_machine_compat_props(machine_class->compat_props);
2093
2094 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2095 object_property_add_child(object_get_root(), "machine",
2096 OBJECT(current_machine));
2097 object_property_add_child(container_get(OBJECT(current_machine),
2098 "/unattached"),
2099 "sysbus", OBJECT(sysbus_get_default()));
2100
2101 if (machine_class->minimum_page_bits) {
2102 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2103 /* This would be a board error: specifying a minimum smaller than
2104 * a target's compile-time fixed setting.
2105 */
2106 g_assert_not_reached();
2107 }
2108 }
2109
2110 cpu_exec_init_all();
2111 page_size_init();
2112
2113 if (machine_class->hw_version) {
2114 qemu_set_hw_version(machine_class->hw_version);
2115 }
2116
2117 /*
2118 * Get the default machine options from the machine if it is not already
2119 * specified either by the configuration file or by the command line.
2120 */
2121 if (machine_class->default_machine_opts) {
2122 QDict *default_opts =
2123 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2124 &error_abort);
2125 qemu_apply_legacy_machine_options(default_opts);
2126 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2127 false, &error_abort);
2128 qobject_unref(default_opts);
2129 }
2130 }
2131
2132 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2133 {
2134 GlobalProperty *g;
2135
2136 g = g_malloc0(sizeof(*g));
2137 g->driver = qemu_opt_get(opts, "driver");
2138 g->property = qemu_opt_get(opts, "property");
2139 g->value = qemu_opt_get(opts, "value");
2140 qdev_prop_register_global(g);
2141 return 0;
2142 }
2143
2144 /*
2145 * Return whether configuration group @group is stored in QemuOpts, or
2146 * recorded as one or more QDicts by qemu_record_config_group.
2147 */
2148 static bool is_qemuopts_group(const char *group)
2149 {
2150 if (g_str_equal(group, "object") ||
2151 g_str_equal(group, "audiodev") ||
2152 g_str_equal(group, "machine") ||
2153 g_str_equal(group, "smp-opts") ||
2154 g_str_equal(group, "boot-opts")) {
2155 return false;
2156 }
2157 return true;
2158 }
2159
2160 static void qemu_record_config_group(const char *group, QDict *dict,
2161 bool from_json, Error **errp)
2162 {
2163 if (g_str_equal(group, "object")) {
2164 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2165 object_option_add_visitor(v);
2166 visit_free(v);
2167
2168 } else if (g_str_equal(group, "audiodev")) {
2169 Audiodev *dev = NULL;
2170 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2171 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2172 audio_define(dev);
2173 }
2174 visit_free(v);
2175
2176 } else if (g_str_equal(group, "machine")) {
2177 /*
2178 * Cannot merge string-valued and type-safe dictionaries, so JSON
2179 * is not accepted yet for -M.
2180 */
2181 assert(!from_json);
2182 keyval_merge(machine_opts_dict, dict, errp);
2183 } else if (g_str_equal(group, "smp-opts")) {
2184 machine_merge_property("smp", dict, &error_fatal);
2185 } else if (g_str_equal(group, "boot-opts")) {
2186 machine_merge_property("boot", dict, &error_fatal);
2187 } else {
2188 abort();
2189 }
2190 }
2191
2192 /*
2193 * Parse non-QemuOpts config file groups, pass the rest to
2194 * qemu_config_do_parse.
2195 */
2196 static void qemu_parse_config_group(const char *group, QDict *qdict,
2197 void *opaque, Error **errp)
2198 {
2199 QObject *crumpled;
2200 if (is_qemuopts_group(group)) {
2201 qemu_config_do_parse(group, qdict, opaque, errp);
2202 return;
2203 }
2204
2205 crumpled = qdict_crumple(qdict, errp);
2206 if (!crumpled) {
2207 return;
2208 }
2209 switch (qobject_type(crumpled)) {
2210 case QTYPE_QDICT:
2211 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2212 break;
2213 case QTYPE_QLIST:
2214 error_setg(errp, "Lists cannot be at top level of a configuration section");
2215 break;
2216 default:
2217 g_assert_not_reached();
2218 }
2219 qobject_unref(crumpled);
2220 }
2221
2222 static void qemu_read_default_config_file(Error **errp)
2223 {
2224 ERRP_GUARD();
2225 int ret;
2226 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2227
2228 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2229 if (ret < 0) {
2230 if (ret == -ENOENT) {
2231 error_free(*errp);
2232 *errp = NULL;
2233 }
2234 }
2235 }
2236
2237 static void qemu_set_option(const char *str, Error **errp)
2238 {
2239 char group[64], id[64], arg[64];
2240 QemuOptsList *list;
2241 QemuOpts *opts;
2242 int rc, offset;
2243
2244 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2245 if (rc < 3 || str[offset] != '=') {
2246 error_setg(errp, "can't parse: \"%s\"", str);
2247 return;
2248 }
2249
2250 if (!is_qemuopts_group(group)) {
2251 error_setg(errp, "-set is not supported with %s", group);
2252 } else {
2253 list = qemu_find_opts_err(group, errp);
2254 if (list) {
2255 opts = qemu_opts_find(list, id);
2256 if (!opts) {
2257 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2258 return;
2259 }
2260 qemu_opt_set(opts, arg, str + offset + 1, errp);
2261 }
2262 }
2263 }
2264
2265 static void user_register_global_props(void)
2266 {
2267 qemu_opts_foreach(qemu_find_opts("global"),
2268 global_init_func, NULL, NULL);
2269 }
2270
2271 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2272 {
2273 icount_configure(opts, errp);
2274 return 0;
2275 }
2276
2277 static int accelerator_set_property(void *opaque,
2278 const char *name, const char *value,
2279 Error **errp)
2280 {
2281 return object_parse_property_opt(opaque, name, value, "accel", errp);
2282 }
2283
2284 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2285 {
2286 bool *p_init_failed = opaque;
2287 const char *acc = qemu_opt_get(opts, "accel");
2288 AccelClass *ac = accel_find(acc);
2289 AccelState *accel;
2290 int ret;
2291 bool qtest_with_kvm;
2292
2293 if (!acc) {
2294 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2295 goto bad;
2296 }
2297
2298 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2299
2300 if (!ac) {
2301 if (!qtest_with_kvm) {
2302 error_report("invalid accelerator %s", acc);
2303 }
2304 goto bad;
2305 }
2306 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2307 object_apply_compat_props(OBJECT(accel));
2308 qemu_opt_foreach(opts, accelerator_set_property,
2309 accel,
2310 &error_fatal);
2311 /*
2312 * If legacy -singlestep option is set, honour it for TCG and
2313 * silently ignore for any other accelerator (which is how this
2314 * option has always behaved).
2315 */
2316 if (opt_one_insn_per_tb) {
2317 /*
2318 * This will always succeed for TCG, and we want to ignore
2319 * the error from trying to set a nonexistent property
2320 * on any other accelerator.
2321 */
2322 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL);
2323 }
2324 ret = accel_init_machine(accel, current_machine);
2325 if (ret < 0) {
2326 if (!qtest_with_kvm || ret != -ENOENT) {
2327 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2328 }
2329 goto bad;
2330 }
2331
2332 return 1;
2333
2334 bad:
2335 *p_init_failed = true;
2336 return 0;
2337 }
2338
2339 static void configure_accelerators(const char *progname)
2340 {
2341 bool init_failed = false;
2342
2343 qemu_opts_foreach(qemu_find_opts("icount"),
2344 do_configure_icount, NULL, &error_fatal);
2345
2346 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2347 char **accel_list, **tmp;
2348
2349 if (accelerators == NULL) {
2350 /* Select the default accelerator */
2351 bool have_tcg = accel_find("tcg");
2352 bool have_kvm = accel_find("kvm");
2353
2354 if (have_tcg && have_kvm) {
2355 if (g_str_has_suffix(progname, "kvm")) {
2356 /* If the program name ends with "kvm", we prefer KVM */
2357 accelerators = "kvm:tcg";
2358 } else {
2359 accelerators = "tcg:kvm";
2360 }
2361 } else if (have_kvm) {
2362 accelerators = "kvm";
2363 } else if (have_tcg) {
2364 accelerators = "tcg";
2365 } else {
2366 error_report("No accelerator selected and"
2367 " no default accelerator available");
2368 exit(1);
2369 }
2370 }
2371 accel_list = g_strsplit(accelerators, ":", 0);
2372
2373 for (tmp = accel_list; *tmp; tmp++) {
2374 /*
2375 * Filter invalid accelerators here, to prevent obscenities
2376 * such as "-machine accel=tcg,,thread=single".
2377 */
2378 if (accel_find(*tmp)) {
2379 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2380 } else {
2381 init_failed = true;
2382 error_report("invalid accelerator %s", *tmp);
2383 }
2384 }
2385 g_strfreev(accel_list);
2386 } else {
2387 if (accelerators != NULL) {
2388 error_report("The -accel and \"-machine accel=\" options are incompatible");
2389 exit(1);
2390 }
2391 }
2392
2393 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2394 do_configure_accelerator, &init_failed, &error_fatal)) {
2395 if (!init_failed) {
2396 error_report("no accelerator found");
2397 }
2398 exit(1);
2399 }
2400
2401 if (init_failed && !qtest_chrdev) {
2402 error_report("falling back to %s", current_accel_name());
2403 }
2404
2405 if (icount_enabled() && !tcg_enabled()) {
2406 error_report("-icount is not allowed with hardware virtualization");
2407 exit(1);
2408 }
2409 }
2410
2411 static void qemu_validate_options(const QDict *machine_opts)
2412 {
2413 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2414 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2415 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2416
2417 if (kernel_filename == NULL) {
2418 if (kernel_cmdline != NULL) {
2419 error_report("-append only allowed with -kernel option");
2420 exit(1);
2421 }
2422
2423 if (initrd_filename != NULL) {
2424 error_report("-initrd only allowed with -kernel option");
2425 exit(1);
2426 }
2427 }
2428
2429 if (loadvm && incoming) {
2430 error_report("'incoming' and 'loadvm' options are mutually exclusive");
2431 exit(EXIT_FAILURE);
2432 }
2433 if (loadvm && preconfig_requested) {
2434 error_report("'preconfig' and 'loadvm' options are "
2435 "mutually exclusive");
2436 exit(EXIT_FAILURE);
2437 }
2438 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2439 error_report("'preconfig' supports '-incoming defer' only");
2440 exit(EXIT_FAILURE);
2441 }
2442
2443 #ifdef CONFIG_CURSES
2444 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2445 error_report("curses display cannot be used with -daemonize");
2446 exit(1);
2447 }
2448 #endif
2449 }
2450
2451 static void qemu_process_sugar_options(void)
2452 {
2453 if (mem_prealloc) {
2454 QObject *smp = qdict_get(machine_opts_dict, "smp");
2455 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2456 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2457 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2458 const char *val = qstring_get_str(qobject_to(QString, cpus));
2459 object_register_sugar_prop("memory-backend", "prealloc-threads",
2460 val, false);
2461 }
2462 }
2463 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2464 }
2465 }
2466
2467 /* -action processing */
2468
2469 /*
2470 * Process all the -action parameters parsed from cmdline.
2471 */
2472 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2473 {
2474 Error *local_err = NULL;
2475 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2476 QObject *ret = NULL;
2477 qmp_marshal_set_action(qdict, &ret, &local_err);
2478 qobject_unref(ret);
2479 qobject_unref(qdict);
2480 if (local_err) {
2481 error_propagate(errp, local_err);
2482 return 1;
2483 }
2484 return 0;
2485 }
2486
2487 static void qemu_process_early_options(void)
2488 {
2489 qemu_opts_foreach(qemu_find_opts("name"),
2490 parse_name, NULL, &error_fatal);
2491
2492 object_option_foreach_add(object_create_pre_sandbox);
2493
2494 #ifdef CONFIG_SECCOMP
2495 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2496 if (olist) {
2497 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2498 }
2499 #endif
2500
2501 if (qemu_opts_foreach(qemu_find_opts("action"),
2502 process_runstate_actions, NULL, &error_fatal)) {
2503 exit(1);
2504 }
2505
2506 #ifndef _WIN32
2507 qemu_opts_foreach(qemu_find_opts("add-fd"),
2508 parse_add_fd, NULL, &error_fatal);
2509
2510 qemu_opts_foreach(qemu_find_opts("add-fd"),
2511 cleanup_add_fd, NULL, &error_fatal);
2512 #endif
2513
2514 /* Open the logfile at this point and set the log mask if necessary. */
2515 {
2516 int mask = 0;
2517 if (log_mask) {
2518 mask = qemu_str_to_log_mask(log_mask);
2519 if (!mask) {
2520 qemu_print_log_usage(stdout);
2521 exit(1);
2522 }
2523 }
2524 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2525 }
2526
2527 qemu_add_default_firmwarepath();
2528 }
2529
2530 static void qemu_process_help_options(void)
2531 {
2532 /*
2533 * Check for -cpu help and -device help before we call select_machine(),
2534 * which will return an error if the architecture has no default machine
2535 * type and the user did not specify one, so that the user doesn't need
2536 * to say '-cpu help -machine something'.
2537 */
2538 if (cpu_option && is_help_option(cpu_option)) {
2539 list_cpus();
2540 exit(0);
2541 }
2542
2543 if (qemu_opts_foreach(qemu_find_opts("device"),
2544 device_help_func, NULL, NULL)) {
2545 exit(0);
2546 }
2547
2548 /* -L help lists the data directories and exits. */
2549 if (list_data_dirs) {
2550 qemu_list_data_dirs();
2551 exit(0);
2552 }
2553 }
2554
2555 static void qemu_maybe_daemonize(const char *pid_file)
2556 {
2557 Error *err = NULL;
2558
2559 os_daemonize();
2560 rcu_disable_atfork();
2561
2562 if (pid_file) {
2563 char *pid_file_realpath = NULL;
2564
2565 if (!qemu_write_pidfile(pid_file, &err)) {
2566 error_reportf_err(err, "cannot create PID file: ");
2567 exit(1);
2568 }
2569
2570 pid_file_realpath = g_malloc0(PATH_MAX);
2571 if (!realpath(pid_file, pid_file_realpath)) {
2572 if (errno != ENOENT) {
2573 warn_report("not removing PID file on exit: cannot resolve PID "
2574 "file path: %s: %s", pid_file, strerror(errno));
2575 }
2576 return;
2577 }
2578
2579 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2580 .notifier = {
2581 .notify = qemu_unlink_pidfile,
2582 },
2583 .pid_file_realpath = pid_file_realpath,
2584 };
2585 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2586 }
2587 }
2588
2589 static void qemu_init_displays(void)
2590 {
2591 DisplayState *ds;
2592
2593 /* init local displays */
2594 ds = init_displaystate();
2595 qemu_display_init(ds, &dpy);
2596
2597 /* must be after terminal init, SDL library changes signal handlers */
2598 os_setup_signal_handling();
2599
2600 /* init remote displays */
2601 #ifdef CONFIG_VNC
2602 qemu_opts_foreach(qemu_find_opts("vnc"),
2603 vnc_init_func, NULL, &error_fatal);
2604 #endif
2605
2606 if (using_spice) {
2607 qemu_spice.display_init();
2608 }
2609 }
2610
2611 static void qemu_init_board(void)
2612 {
2613 /* process plugin before CPUs are created, but once -smp has been parsed */
2614 qemu_plugin_load_list(&plugin_list, &error_fatal);
2615
2616 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2617 machine_run_board_init(current_machine, mem_path, &error_fatal);
2618
2619 drive_check_orphaned();
2620
2621 realtime_init();
2622 }
2623
2624 static void qemu_create_cli_devices(void)
2625 {
2626 DeviceOption *opt;
2627
2628 soundhw_init();
2629
2630 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2631 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2632
2633 /* init USB devices */
2634 if (machine_usb(current_machine)) {
2635 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2636 exit(1);
2637 }
2638
2639 /* init generic devices */
2640 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2641 qemu_opts_foreach(qemu_find_opts("device"),
2642 device_init_func, NULL, &error_fatal);
2643 QTAILQ_FOREACH(opt, &device_opts, next) {
2644 DeviceState *dev;
2645 loc_push_restore(&opt->loc);
2646 /*
2647 * TODO Eventually we should call qmp_device_add() here to make sure it
2648 * behaves the same, but QMP still has to accept incorrectly typed
2649 * options until libvirt is fixed and we want to be strict on the CLI
2650 * from the start, so call qdev_device_add_from_qdict() directly for
2651 * now.
2652 */
2653 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2654 object_unref(OBJECT(dev));
2655 loc_pop(&opt->loc);
2656 }
2657 rom_reset_order_override();
2658 }
2659
2660 static void qemu_machine_creation_done(void)
2661 {
2662 MachineState *machine = MACHINE(qdev_get_machine());
2663
2664 /* Did we create any drives that we failed to create a device for? */
2665 drive_check_orphaned();
2666
2667 /* Don't warn about the default network setup that you get if
2668 * no command line -net or -netdev options are specified. There
2669 * are two cases that we would otherwise complain about:
2670 * (1) board doesn't support a NIC but the implicit "-net nic"
2671 * requested one
2672 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2673 * sets up a nic that isn't connected to anything.
2674 */
2675 if (!default_net && (!qtest_enabled() || has_defaults)) {
2676 net_check_clients();
2677 }
2678
2679 qdev_prop_check_globals();
2680
2681 qdev_machine_creation_done();
2682
2683 if (machine->cgs) {
2684 /*
2685 * Verify that Confidential Guest Support has actually been initialized
2686 */
2687 assert(machine->cgs->ready);
2688 }
2689
2690 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2691 exit(1);
2692 }
2693 if (!vga_interface_created && !default_vga &&
2694 vga_interface_type != VGA_NONE) {
2695 warn_report("A -vga option was passed but this machine "
2696 "type does not use that option; "
2697 "No VGA device has been created");
2698 }
2699 }
2700
2701 void qmp_x_exit_preconfig(Error **errp)
2702 {
2703 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2704 error_setg(errp, "The command is permitted only before machine initialization");
2705 return;
2706 }
2707
2708 qemu_init_board();
2709 qemu_create_cli_devices();
2710 qemu_machine_creation_done();
2711
2712 if (loadvm) {
2713 RunState state = autostart ? RUN_STATE_RUNNING : runstate_get();
2714 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2715 load_snapshot_resume(state);
2716 }
2717 if (replay_mode != REPLAY_MODE_NONE) {
2718 replay_vmstate_init();
2719 }
2720
2721 if (incoming) {
2722 Error *local_err = NULL;
2723 if (strcmp(incoming, "defer") != 0) {
2724 qmp_migrate_incoming(incoming, false, NULL, &local_err);
2725 if (local_err) {
2726 error_reportf_err(local_err, "-incoming %s: ", incoming);
2727 exit(1);
2728 }
2729 }
2730 } else if (autostart) {
2731 qmp_cont(NULL);
2732 }
2733 }
2734
2735 void qemu_init(int argc, char **argv)
2736 {
2737 QemuOpts *opts;
2738 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2739 QemuOptsList *olist;
2740 int optind;
2741 const char *optarg;
2742 MachineClass *machine_class;
2743 bool userconfig = true;
2744 FILE *vmstate_dump_file = NULL;
2745
2746 qemu_add_opts(&qemu_drive_opts);
2747 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2748 qemu_add_drive_opts(&qemu_common_drive_opts);
2749 qemu_add_drive_opts(&qemu_drive_opts);
2750 qemu_add_drive_opts(&bdrv_runtime_opts);
2751 qemu_add_opts(&qemu_chardev_opts);
2752 qemu_add_opts(&qemu_device_opts);
2753 qemu_add_opts(&qemu_netdev_opts);
2754 qemu_add_opts(&qemu_nic_opts);
2755 qemu_add_opts(&qemu_net_opts);
2756 qemu_add_opts(&qemu_rtc_opts);
2757 qemu_add_opts(&qemu_global_opts);
2758 qemu_add_opts(&qemu_mon_opts);
2759 qemu_add_opts(&qemu_trace_opts);
2760 qemu_plugin_add_opts();
2761 qemu_add_opts(&qemu_option_rom_opts);
2762 qemu_add_opts(&qemu_accel_opts);
2763 qemu_add_opts(&qemu_mem_opts);
2764 qemu_add_opts(&qemu_smp_opts);
2765 qemu_add_opts(&qemu_boot_opts);
2766 qemu_add_opts(&qemu_add_fd_opts);
2767 qemu_add_opts(&qemu_object_opts);
2768 qemu_add_opts(&qemu_tpmdev_opts);
2769 qemu_add_opts(&qemu_overcommit_opts);
2770 qemu_add_opts(&qemu_msg_opts);
2771 qemu_add_opts(&qemu_name_opts);
2772 qemu_add_opts(&qemu_numa_opts);
2773 qemu_add_opts(&qemu_icount_opts);
2774 qemu_add_opts(&qemu_semihosting_config_opts);
2775 qemu_add_opts(&qemu_fw_cfg_opts);
2776 qemu_add_opts(&qemu_action_opts);
2777 qemu_add_run_with_opts();
2778 module_call_init(MODULE_INIT_OPTS);
2779
2780 error_init(argv[0]);
2781 qemu_init_exec_dir(argv[0]);
2782
2783 qemu_init_arch_modules();
2784
2785 qemu_init_subsystems();
2786
2787 /* first pass of option parsing */
2788 optind = 1;
2789 while (optind < argc) {
2790 if (argv[optind][0] != '-') {
2791 /* disk image */
2792 optind++;
2793 } else {
2794 const QEMUOption *popt;
2795
2796 popt = lookup_opt(argc, argv, &optarg, &optind);
2797 switch (popt->index) {
2798 case QEMU_OPTION_nouserconfig:
2799 userconfig = false;
2800 break;
2801 }
2802 }
2803 }
2804
2805 machine_opts_dict = qdict_new();
2806 if (userconfig) {
2807 qemu_read_default_config_file(&error_fatal);
2808 }
2809
2810 /* second pass of option parsing */
2811 optind = 1;
2812 for(;;) {
2813 if (optind >= argc)
2814 break;
2815 if (argv[optind][0] != '-') {
2816 loc_set_cmdline(argv, optind, 1);
2817 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2818 } else {
2819 const QEMUOption *popt;
2820
2821 popt = lookup_opt(argc, argv, &optarg, &optind);
2822 if (!(popt->arch_mask & arch_type)) {
2823 error_report("Option not supported for this target");
2824 exit(1);
2825 }
2826 switch(popt->index) {
2827 case QEMU_OPTION_cpu:
2828 /* hw initialization will check this */
2829 cpu_option = optarg;
2830 break;
2831 case QEMU_OPTION_hda:
2832 case QEMU_OPTION_hdb:
2833 case QEMU_OPTION_hdc:
2834 case QEMU_OPTION_hdd:
2835 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2836 HD_OPTS);
2837 break;
2838 case QEMU_OPTION_blockdev:
2839 {
2840 Visitor *v;
2841 BlockdevOptionsQueueEntry *bdo;
2842
2843 v = qobject_input_visitor_new_str(optarg, "driver",
2844 &error_fatal);
2845
2846 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2847 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2848 &error_fatal);
2849 visit_free(v);
2850 loc_save(&bdo->loc);
2851 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2852 break;
2853 }
2854 case QEMU_OPTION_drive:
2855 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2856 optarg, false);
2857 if (opts == NULL) {
2858 exit(1);
2859 }
2860 break;
2861 case QEMU_OPTION_set:
2862 qemu_set_option(optarg, &error_fatal);
2863 break;
2864 case QEMU_OPTION_global:
2865 if (qemu_global_option(optarg) != 0)
2866 exit(1);
2867 break;
2868 case QEMU_OPTION_mtdblock:
2869 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2870 break;
2871 case QEMU_OPTION_sd:
2872 drive_add(IF_SD, -1, optarg, SD_OPTS);
2873 break;
2874 case QEMU_OPTION_pflash:
2875 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2876 break;
2877 case QEMU_OPTION_snapshot:
2878 snapshot = 1;
2879 replay_add_blocker("-snapshot");
2880 break;
2881 case QEMU_OPTION_numa:
2882 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2883 optarg, true);
2884 if (!opts) {
2885 exit(1);
2886 }
2887 break;
2888 case QEMU_OPTION_display:
2889 parse_display(optarg);
2890 break;
2891 case QEMU_OPTION_nographic:
2892 qdict_put_str(machine_opts_dict, "graphics", "off");
2893 nographic = true;
2894 dpy.type = DISPLAY_TYPE_NONE;
2895 break;
2896 case QEMU_OPTION_portrait:
2897 graphic_rotate = 90;
2898 break;
2899 case QEMU_OPTION_rotate:
2900 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2901 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2902 graphic_rotate != 180 && graphic_rotate != 270) {
2903 error_report("only 90, 180, 270 deg rotation is available");
2904 exit(1);
2905 }
2906 break;
2907 case QEMU_OPTION_kernel:
2908 qdict_put_str(machine_opts_dict, "kernel", optarg);
2909 break;
2910 case QEMU_OPTION_initrd:
2911 qdict_put_str(machine_opts_dict, "initrd", optarg);
2912 break;
2913 case QEMU_OPTION_append:
2914 qdict_put_str(machine_opts_dict, "append", optarg);
2915 break;
2916 case QEMU_OPTION_dtb:
2917 qdict_put_str(machine_opts_dict, "dtb", optarg);
2918 break;
2919 case QEMU_OPTION_cdrom:
2920 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2921 break;
2922 case QEMU_OPTION_boot:
2923 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2924 break;
2925 case QEMU_OPTION_fda:
2926 case QEMU_OPTION_fdb:
2927 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2928 optarg, FD_OPTS);
2929 break;
2930 case QEMU_OPTION_no_fd_bootchk:
2931 fd_bootchk = 0;
2932 break;
2933 case QEMU_OPTION_netdev:
2934 default_net = 0;
2935 if (netdev_is_modern(optarg)) {
2936 netdev_parse_modern(optarg);
2937 } else {
2938 net_client_parse(qemu_find_opts("netdev"), optarg);
2939 }
2940 break;
2941 case QEMU_OPTION_nic:
2942 default_net = 0;
2943 net_client_parse(qemu_find_opts("nic"), optarg);
2944 break;
2945 case QEMU_OPTION_net:
2946 default_net = 0;
2947 net_client_parse(qemu_find_opts("net"), optarg);
2948 break;
2949 #ifdef CONFIG_LIBISCSI
2950 case QEMU_OPTION_iscsi:
2951 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2952 optarg, false);
2953 if (!opts) {
2954 exit(1);
2955 }
2956 break;
2957 #endif
2958 case QEMU_OPTION_audiodev:
2959 default_audio = 0;
2960 audio_parse_option(optarg);
2961 break;
2962 case QEMU_OPTION_audio: {
2963 bool help;
2964 char *model = NULL;
2965 Audiodev *dev = NULL;
2966 Visitor *v;
2967 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2968 default_audio = 0;
2969 if (help || (qdict_haskey(dict, "driver") &&
2970 is_help_option(qdict_get_str(dict, "driver")))) {
2971 audio_help();
2972 exit(EXIT_SUCCESS);
2973 }
2974 if (!qdict_haskey(dict, "id")) {
2975 qdict_put_str(dict, "id", "audiodev0");
2976 }
2977 if (qdict_haskey(dict, "model")) {
2978 model = g_strdup(qdict_get_str(dict, "model"));
2979 qdict_del(dict, "model");
2980 if (is_help_option(model)) {
2981 show_valid_soundhw();
2982 exit(0);
2983 }
2984 }
2985 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2986 qobject_unref(dict);
2987 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2988 visit_free(v);
2989 if (model) {
2990 audio_define(dev);
2991 select_soundhw(model, dev->id);
2992 g_free(model);
2993 } else {
2994 audio_define_default(dev, &error_fatal);
2995 }
2996 break;
2997 }
2998 case QEMU_OPTION_h:
2999 help(0);
3000 break;
3001 case QEMU_OPTION_version:
3002 version();
3003 exit(0);
3004 break;
3005 case QEMU_OPTION_m:
3006 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
3007 if (opts == NULL) {
3008 exit(1);
3009 }
3010 break;
3011 #ifdef CONFIG_TPM
3012 case QEMU_OPTION_tpmdev:
3013 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3014 exit(1);
3015 }
3016 break;
3017 #endif
3018 case QEMU_OPTION_mempath:
3019 mem_path = optarg;
3020 break;
3021 case QEMU_OPTION_mem_prealloc:
3022 mem_prealloc = 1;
3023 break;
3024 case QEMU_OPTION_d:
3025 log_mask = optarg;
3026 break;
3027 case QEMU_OPTION_D:
3028 log_file = optarg;
3029 break;
3030 case QEMU_OPTION_DFILTER:
3031 qemu_set_dfilter_ranges(optarg, &error_fatal);
3032 break;
3033 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3034 case QEMU_OPTION_perfmap:
3035 perf_enable_perfmap();
3036 break;
3037 case QEMU_OPTION_jitdump:
3038 perf_enable_jitdump();
3039 break;
3040 #endif
3041 case QEMU_OPTION_seed:
3042 qemu_guest_random_seed_main(optarg, &error_fatal);
3043 break;
3044 case QEMU_OPTION_s:
3045 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3046 break;
3047 case QEMU_OPTION_gdb:
3048 add_device_config(DEV_GDB, optarg);
3049 break;
3050 case QEMU_OPTION_L:
3051 if (is_help_option(optarg)) {
3052 list_data_dirs = true;
3053 } else {
3054 qemu_add_data_dir(g_strdup(optarg));
3055 }
3056 break;
3057 case QEMU_OPTION_bios:
3058 qdict_put_str(machine_opts_dict, "firmware", optarg);
3059 break;
3060 case QEMU_OPTION_singlestep:
3061 opt_one_insn_per_tb = true;
3062 break;
3063 case QEMU_OPTION_S:
3064 autostart = 0;
3065 break;
3066 case QEMU_OPTION_k:
3067 keyboard_layout = optarg;
3068 break;
3069 case QEMU_OPTION_vga:
3070 vga_model = optarg;
3071 default_vga = 0;
3072 break;
3073 case QEMU_OPTION_g:
3074 {
3075 const char *p;
3076 int w, h, depth;
3077 p = optarg;
3078 w = strtol(p, (char **)&p, 10);
3079 if (w <= 0) {
3080 graphic_error:
3081 error_report("invalid resolution or depth");
3082 exit(1);
3083 }
3084 if (*p != 'x')
3085 goto graphic_error;
3086 p++;
3087 h = strtol(p, (char **)&p, 10);
3088 if (h <= 0)
3089 goto graphic_error;
3090 if (*p == 'x') {
3091 p++;
3092 depth = strtol(p, (char **)&p, 10);
3093 if (depth != 1 && depth != 2 && depth != 4 &&
3094 depth != 8 && depth != 15 && depth != 16 &&
3095 depth != 24 && depth != 32)
3096 goto graphic_error;
3097 } else if (*p == '\0') {
3098 depth = graphic_depth;
3099 } else {
3100 goto graphic_error;
3101 }
3102
3103 graphic_width = w;
3104 graphic_height = h;
3105 graphic_depth = depth;
3106 }
3107 break;
3108 case QEMU_OPTION_echr:
3109 {
3110 char *r;
3111 term_escape_char = strtol(optarg, &r, 0);
3112 if (r == optarg)
3113 printf("Bad argument to echr\n");
3114 break;
3115 }
3116 case QEMU_OPTION_monitor:
3117 default_monitor = 0;
3118 if (strncmp(optarg, "none", 4)) {
3119 monitor_parse(optarg, "readline", false);
3120 }
3121 break;
3122 case QEMU_OPTION_qmp:
3123 monitor_parse(optarg, "control", false);
3124 default_monitor = 0;
3125 break;
3126 case QEMU_OPTION_qmp_pretty:
3127 monitor_parse(optarg, "control", true);
3128 default_monitor = 0;
3129 break;
3130 case QEMU_OPTION_mon:
3131 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3132 true);
3133 if (!opts) {
3134 exit(1);
3135 }
3136 default_monitor = 0;
3137 break;
3138 case QEMU_OPTION_chardev:
3139 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3140 optarg, true);
3141 if (!opts) {
3142 exit(1);
3143 }
3144 break;
3145 case QEMU_OPTION_fsdev:
3146 olist = qemu_find_opts("fsdev");
3147 if (!olist) {
3148 error_report("fsdev support is disabled");
3149 exit(1);
3150 }
3151 opts = qemu_opts_parse_noisily(olist, optarg, true);
3152 if (!opts) {
3153 exit(1);
3154 }
3155 break;
3156 case QEMU_OPTION_virtfs: {
3157 QemuOpts *fsdev;
3158 QemuOpts *device;
3159 const char *writeout, *sock_fd, *socket, *path, *security_model,
3160 *multidevs;
3161
3162 olist = qemu_find_opts("virtfs");
3163 if (!olist) {
3164 error_report("virtfs support is disabled");
3165 exit(1);
3166 }
3167 opts = qemu_opts_parse_noisily(olist, optarg, true);
3168 if (!opts) {
3169 exit(1);
3170 }
3171
3172 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3173 qemu_opt_get(opts, "mount_tag") == NULL) {
3174 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3175 exit(1);
3176 }
3177 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3178 qemu_opts_id(opts) ?:
3179 qemu_opt_get(opts, "mount_tag"),
3180 1, NULL);
3181 if (!fsdev) {
3182 error_report("duplicate or invalid fsdev id: %s",
3183 qemu_opt_get(opts, "mount_tag"));
3184 exit(1);
3185 }
3186
3187 writeout = qemu_opt_get(opts, "writeout");
3188 if (writeout) {
3189 #ifdef CONFIG_SYNC_FILE_RANGE
3190 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3191 #else
3192 error_report("writeout=immediate not supported "
3193 "on this platform");
3194 exit(1);
3195 #endif
3196 }
3197 qemu_opt_set(fsdev, "fsdriver",
3198 qemu_opt_get(opts, "fsdriver"), &error_abort);
3199 path = qemu_opt_get(opts, "path");
3200 if (path) {
3201 qemu_opt_set(fsdev, "path", path, &error_abort);
3202 }
3203 security_model = qemu_opt_get(opts, "security_model");
3204 if (security_model) {
3205 qemu_opt_set(fsdev, "security_model", security_model,
3206 &error_abort);
3207 }
3208 socket = qemu_opt_get(opts, "socket");
3209 if (socket) {
3210 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3211 }
3212 sock_fd = qemu_opt_get(opts, "sock_fd");
3213 if (sock_fd) {
3214 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3215 }
3216
3217 qemu_opt_set_bool(fsdev, "readonly",
3218 qemu_opt_get_bool(opts, "readonly", 0),
3219 &error_abort);
3220 multidevs = qemu_opt_get(opts, "multidevs");
3221 if (multidevs) {
3222 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3223 }
3224 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3225 &error_abort);
3226 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3227 qemu_opt_set(device, "fsdev",
3228 qemu_opts_id(fsdev), &error_abort);
3229 qemu_opt_set(device, "mount_tag",
3230 qemu_opt_get(opts, "mount_tag"), &error_abort);
3231 break;
3232 }
3233 case QEMU_OPTION_serial:
3234 add_device_config(DEV_SERIAL, optarg);
3235 default_serial = 0;
3236 if (strncmp(optarg, "mon:", 4) == 0) {
3237 default_monitor = 0;
3238 }
3239 break;
3240 case QEMU_OPTION_action:
3241 olist = qemu_find_opts("action");
3242 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3243 exit(1);
3244 }
3245 break;
3246 case QEMU_OPTION_watchdog_action: {
3247 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3248 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3249 break;
3250 }
3251 case QEMU_OPTION_parallel:
3252 add_device_config(DEV_PARALLEL, optarg);
3253 default_parallel = 0;
3254 if (strncmp(optarg, "mon:", 4) == 0) {
3255 default_monitor = 0;
3256 }
3257 break;
3258 case QEMU_OPTION_debugcon:
3259 add_device_config(DEV_DEBUGCON, optarg);
3260 break;
3261 case QEMU_OPTION_loadvm:
3262 loadvm = optarg;
3263 break;
3264 case QEMU_OPTION_full_screen:
3265 dpy.has_full_screen = true;
3266 dpy.full_screen = true;
3267 break;
3268 case QEMU_OPTION_pidfile:
3269 pid_file = optarg;
3270 break;
3271 case QEMU_OPTION_win2k_hack:
3272 win2k_install_hack = 1;
3273 break;
3274 case QEMU_OPTION_acpitable:
3275 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3276 optarg, true);
3277 if (!opts) {
3278 exit(1);
3279 }
3280 acpi_table_add(opts, &error_fatal);
3281 break;
3282 case QEMU_OPTION_smbios:
3283 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3284 optarg, false);
3285 if (!opts) {
3286 exit(1);
3287 }
3288 smbios_entry_add(opts, &error_fatal);
3289 break;
3290 case QEMU_OPTION_fwcfg:
3291 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3292 optarg, true);
3293 if (opts == NULL) {
3294 exit(1);
3295 }
3296 break;
3297 case QEMU_OPTION_preconfig:
3298 preconfig_requested = true;
3299 break;
3300 case QEMU_OPTION_enable_kvm:
3301 qdict_put_str(machine_opts_dict, "accel", "kvm");
3302 break;
3303 case QEMU_OPTION_M:
3304 case QEMU_OPTION_machine:
3305 {
3306 bool help;
3307
3308 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3309 if (help) {
3310 machine_help_func(machine_opts_dict);
3311 exit(EXIT_SUCCESS);
3312 }
3313 break;
3314 }
3315 case QEMU_OPTION_accel:
3316 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3317 optarg, true);
3318 optarg = qemu_opt_get(accel_opts, "accel");
3319 if (!optarg || is_help_option(optarg)) {
3320 printf("Accelerators supported in QEMU binary:\n");
3321 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3322 false);
3323 for (el = accel_list; el; el = el->next) {
3324 gchar *typename = g_strdup(object_class_get_name(
3325 OBJECT_CLASS(el->data)));
3326 /* omit qtest which is used for tests only */
3327 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3328 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3329 gchar **optname = g_strsplit(typename,
3330 ACCEL_CLASS_SUFFIX, 0);
3331 printf("%s\n", optname[0]);
3332 g_strfreev(optname);
3333 }
3334 g_free(typename);
3335 }
3336 g_slist_free(accel_list);
3337 exit(0);
3338 }
3339 break;
3340 case QEMU_OPTION_usb:
3341 qdict_put_str(machine_opts_dict, "usb", "on");
3342 break;
3343 case QEMU_OPTION_usbdevice:
3344 qdict_put_str(machine_opts_dict, "usb", "on");
3345 add_device_config(DEV_USB, optarg);
3346 break;
3347 case QEMU_OPTION_device:
3348 if (optarg[0] == '{') {
3349 QObject *obj = qobject_from_json(optarg, &error_fatal);
3350 DeviceOption *opt = g_new0(DeviceOption, 1);
3351 opt->opts = qobject_to(QDict, obj);
3352 loc_save(&opt->loc);
3353 assert(opt->opts != NULL);
3354 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3355 } else {
3356 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3357 optarg, true)) {
3358 exit(1);
3359 }
3360 }
3361 break;
3362 case QEMU_OPTION_smp:
3363 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3364 "smp", optarg);
3365 break;
3366 #ifdef CONFIG_VNC
3367 case QEMU_OPTION_vnc:
3368 vnc_parse(optarg);
3369 display_remote++;
3370 break;
3371 #endif
3372 case QEMU_OPTION_no_acpi:
3373 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3374 qdict_put_str(machine_opts_dict, "acpi", "off");
3375 break;
3376 case QEMU_OPTION_no_hpet:
3377 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3378 qdict_put_str(machine_opts_dict, "hpet", "off");
3379 break;
3380 case QEMU_OPTION_no_reboot:
3381 olist = qemu_find_opts("action");
3382 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3383 break;
3384 case QEMU_OPTION_no_shutdown:
3385 olist = qemu_find_opts("action");
3386 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3387 break;
3388 case QEMU_OPTION_uuid:
3389 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3390 error_report("failed to parse UUID string: wrong format");
3391 exit(1);
3392 }
3393 qemu_uuid_set = true;
3394 break;
3395 case QEMU_OPTION_option_rom:
3396 if (nb_option_roms >= MAX_OPTION_ROMS) {
3397 error_report("too many option ROMs");
3398 exit(1);
3399 }
3400 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3401 optarg, true);
3402 if (!opts) {
3403 exit(1);
3404 }
3405 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3406 option_rom[nb_option_roms].bootindex =
3407 qemu_opt_get_number(opts, "bootindex", -1);
3408 if (!option_rom[nb_option_roms].name) {
3409 error_report("Option ROM file is not specified");
3410 exit(1);
3411 }
3412 nb_option_roms++;
3413 break;
3414 case QEMU_OPTION_semihosting:
3415 qemu_semihosting_enable();
3416 break;
3417 case QEMU_OPTION_semihosting_config:
3418 if (qemu_semihosting_config_options(optarg) != 0) {
3419 exit(1);
3420 }
3421 break;
3422 case QEMU_OPTION_name:
3423 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3424 optarg, true);
3425 if (!opts) {
3426 exit(1);
3427 }
3428 /* Capture guest name if -msg guest-name is used later */
3429 error_guest_name = qemu_opt_get(opts, "guest");
3430 break;
3431 case QEMU_OPTION_prom_env:
3432 if (nb_prom_envs >= MAX_PROM_ENVS) {
3433 error_report("too many prom variables");
3434 exit(1);
3435 }
3436 prom_envs[nb_prom_envs] = optarg;
3437 nb_prom_envs++;
3438 break;
3439 case QEMU_OPTION_old_param:
3440 old_param = 1;
3441 break;
3442 case QEMU_OPTION_rtc:
3443 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3444 false);
3445 if (!opts) {
3446 exit(1);
3447 }
3448 break;
3449 case QEMU_OPTION_icount:
3450 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3451 optarg, true);
3452 if (!icount_opts) {
3453 exit(1);
3454 }
3455 break;
3456 case QEMU_OPTION_incoming:
3457 if (!incoming) {
3458 runstate_set(RUN_STATE_INMIGRATE);
3459 }
3460 incoming = optarg;
3461 break;
3462 case QEMU_OPTION_only_migratable:
3463 only_migratable = 1;
3464 break;
3465 case QEMU_OPTION_nodefaults:
3466 has_defaults = 0;
3467 break;
3468 case QEMU_OPTION_xen_domid:
3469 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3470 error_report("Option not supported for this target");
3471 exit(1);
3472 }
3473 xen_domid = atoi(optarg);
3474 break;
3475 case QEMU_OPTION_xen_attach:
3476 if (!(accel_find("xen"))) {
3477 error_report("Option not supported for this target");
3478 exit(1);
3479 }
3480 xen_mode = XEN_ATTACH;
3481 break;
3482 case QEMU_OPTION_xen_domid_restrict:
3483 if (!(accel_find("xen"))) {
3484 error_report("Option not supported for this target");
3485 exit(1);
3486 }
3487 xen_domid_restrict = true;
3488 break;
3489 case QEMU_OPTION_trace:
3490 trace_opt_parse(optarg);
3491 break;
3492 case QEMU_OPTION_plugin:
3493 qemu_plugin_opt_parse(optarg, &plugin_list);
3494 break;
3495 case QEMU_OPTION_readconfig:
3496 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3497 break;
3498 #ifdef CONFIG_SPICE
3499 case QEMU_OPTION_spice:
3500 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false);
3501 if (!opts) {
3502 exit(1);
3503 }
3504 display_remote++;
3505 break;
3506 #endif
3507 case QEMU_OPTION_qtest:
3508 qtest_chrdev = optarg;
3509 break;
3510 case QEMU_OPTION_qtest_log:
3511 qtest_log = optarg;
3512 break;
3513 case QEMU_OPTION_sandbox:
3514 olist = qemu_find_opts("sandbox");
3515 if (!olist) {
3516 #ifndef CONFIG_SECCOMP
3517 error_report("-sandbox support is not enabled "
3518 "in this QEMU binary");
3519 #endif
3520 exit(1);
3521 }
3522
3523 opts = qemu_opts_parse_noisily(olist, optarg, true);
3524 if (!opts) {
3525 exit(1);
3526 }
3527 break;
3528 case QEMU_OPTION_add_fd:
3529 #ifndef _WIN32
3530 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3531 optarg, false);
3532 if (!opts) {
3533 exit(1);
3534 }
3535 #else
3536 error_report("File descriptor passing is disabled on this "
3537 "platform");
3538 exit(1);
3539 #endif
3540 break;
3541 case QEMU_OPTION_object:
3542 object_option_parse(optarg);
3543 break;
3544 case QEMU_OPTION_overcommit:
3545 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3546 optarg, false);
3547 if (!opts) {
3548 exit(1);
3549 }
3550 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3551 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3552 break;
3553 case QEMU_OPTION_compat:
3554 {
3555 CompatPolicy *opts_policy;
3556 Visitor *v;
3557
3558 v = qobject_input_visitor_new_str(optarg, NULL,
3559 &error_fatal);
3560
3561 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3562 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3563
3564 qapi_free_CompatPolicy(opts_policy);
3565 visit_free(v);
3566 break;
3567 }
3568 case QEMU_OPTION_msg:
3569 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3570 false);
3571 if (!opts) {
3572 exit(1);
3573 }
3574 configure_msg(opts);
3575 break;
3576 case QEMU_OPTION_dump_vmstate:
3577 if (vmstate_dump_file) {
3578 error_report("only one '-dump-vmstate' "
3579 "option may be given");
3580 exit(1);
3581 }
3582 vmstate_dump_file = fopen(optarg, "w");
3583 if (vmstate_dump_file == NULL) {
3584 error_report("open %s: %s", optarg, strerror(errno));
3585 exit(1);
3586 }
3587 break;
3588 case QEMU_OPTION_enable_sync_profile:
3589 qsp_enable();
3590 break;
3591 case QEMU_OPTION_nouserconfig:
3592 /* Nothing to be parsed here. Especially, do not error out below. */
3593 break;
3594 #if defined(CONFIG_POSIX)
3595 case QEMU_OPTION_runas:
3596 if (!os_set_runas(optarg)) {
3597 error_report("User \"%s\" doesn't exist"
3598 " (and is not <uid>:<gid>)",
3599 optarg);
3600 exit(1);
3601 }
3602 break;
3603 case QEMU_OPTION_chroot:
3604 warn_report("option is deprecated,"
3605 " use '-run-with chroot=...' instead");
3606 os_set_chroot(optarg);
3607 break;
3608 case QEMU_OPTION_daemonize:
3609 os_set_daemonize(true);
3610 break;
3611 #if defined(CONFIG_LINUX)
3612 /* deprecated */
3613 case QEMU_OPTION_asyncteardown:
3614 init_async_teardown();
3615 break;
3616 #endif
3617 case QEMU_OPTION_run_with: {
3618 const char *str;
3619 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3620 optarg, false);
3621 if (!opts) {
3622 exit(1);
3623 }
3624 #if defined(CONFIG_LINUX)
3625 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3626 init_async_teardown();
3627 }
3628 #endif
3629 str = qemu_opt_get(opts, "chroot");
3630 if (str) {
3631 os_set_chroot(str);
3632 }
3633 break;
3634 }
3635 #endif /* CONFIG_POSIX */
3636
3637 default:
3638 error_report("Option not supported in this build");
3639 exit(1);
3640 }
3641 }
3642 }
3643 /*
3644 * Clear error location left behind by the loop.
3645 * Best done right after the loop. Do not insert code here!
3646 */
3647 loc_set_none();
3648
3649 qemu_validate_options(machine_opts_dict);
3650 qemu_process_sugar_options();
3651
3652 /*
3653 * These options affect everything else and should be processed
3654 * before daemonizing.
3655 */
3656 qemu_process_early_options();
3657
3658 qemu_process_help_options();
3659 qemu_maybe_daemonize(pid_file);
3660
3661 /*
3662 * The trace backend must be initialized after daemonizing.
3663 * trace_init_backends() will call st_init(), which will create the
3664 * trace thread in the parent, and also register st_flush_trace_buffer()
3665 * in atexit(). This function will force the parent to wait for the
3666 * writeout thread to finish, which will not occur, and the parent
3667 * process will be left in the host.
3668 */
3669 if (!trace_init_backends()) {
3670 exit(1);
3671 }
3672 trace_init_file();
3673
3674 qemu_init_main_loop(&error_fatal);
3675 cpu_timers_init();
3676
3677 user_register_global_props();
3678 replay_configure(icount_opts);
3679
3680 configure_rtc(qemu_find_opts_singleton("rtc"));
3681
3682 /* Transfer QemuOpts options into machine options */
3683 parse_memory_options();
3684
3685 qemu_create_machine(machine_opts_dict);
3686
3687 suspend_mux_open();
3688
3689 qemu_disable_default_devices();
3690 qemu_setup_display();
3691 qemu_create_default_devices();
3692 qemu_create_early_backends();
3693
3694 qemu_apply_legacy_machine_options(machine_opts_dict);
3695 qemu_apply_machine_options(machine_opts_dict);
3696 qobject_unref(machine_opts_dict);
3697 phase_advance(PHASE_MACHINE_CREATED);
3698
3699 /*
3700 * Note: uses machine properties such as kernel-irqchip, must run
3701 * after qemu_apply_machine_options.
3702 */
3703 configure_accelerators(argv[0]);
3704 phase_advance(PHASE_ACCEL_CREATED);
3705
3706 /*
3707 * Beware, QOM objects created before this point miss global and
3708 * compat properties.
3709 *
3710 * Global properties get set up by qdev_prop_register_global(),
3711 * called from user_register_global_props(), and certain option
3712 * desugaring. Also in CPU feature desugaring (buried in
3713 * parse_cpu_option()), which happens below this point, but may
3714 * only target the CPU type, which can only be created after
3715 * parse_cpu_option() returned the type.
3716 *
3717 * Machine compat properties: object_set_machine_compat_props().
3718 * Accelerator compat props: object_set_accelerator_compat_props(),
3719 * called from do_configure_accelerator().
3720 */
3721
3722 machine_class = MACHINE_GET_CLASS(current_machine);
3723 if (!qtest_enabled() && machine_class->deprecation_reason) {
3724 warn_report("Machine type '%s' is deprecated: %s",
3725 machine_class->name, machine_class->deprecation_reason);
3726 }
3727
3728 /*
3729 * Create backends before creating migration objects, so that it can
3730 * check against compatibilities on the backend memories (e.g. postcopy
3731 * over memory-backend-file objects).
3732 */
3733 qemu_create_late_backends();
3734
3735 /*
3736 * Note: creates a QOM object, must run only after global and
3737 * compat properties have been set up.
3738 */
3739 migration_object_init();
3740
3741 /* parse features once if machine provides default cpu_type */
3742 current_machine->cpu_type = machine_class_default_cpu_type(machine_class);
3743 if (cpu_option) {
3744 current_machine->cpu_type = parse_cpu_option(cpu_option);
3745 }
3746 /* NB: for machine none cpu_type could STILL be NULL here! */
3747
3748 qemu_resolve_machine_memdev();
3749 parse_numa_opts(current_machine);
3750
3751 if (vmstate_dump_file) {
3752 /* dump and exit */
3753 module_load_qom_all();
3754 dump_vmstate_json_to_file(vmstate_dump_file);
3755 exit(0);
3756 }
3757
3758 if (!preconfig_requested) {
3759 qmp_x_exit_preconfig(&error_fatal);
3760 }
3761 qemu_init_displays();
3762 accel_setup_post(current_machine);
3763 os_setup_post();
3764 resume_mux_open();
3765 }
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