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migration/rdma: Return -1 instead of negative errno code
[qemu/armbru.git] / system / vl.c
blobba83040675de258ffc2da41ddf22fba4d2c4d23f
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu/help-texts.h"
27 #include "qemu/datadir.h"
28 #include "qemu/units.h"
29 #include "exec/cpu-common.h"
30 #include "exec/page-vary.h"
31 #include "hw/qdev-properties.h"
32 #include "qapi/compat-policy.h"
33 #include "qapi/error.h"
34 #include "qapi/qmp/qdict.h"
35 #include "qapi/qmp/qstring.h"
36 #include "qapi/qmp/qjson.h"
37 #include "qemu-version.h"
38 #include "qemu/cutils.h"
39 #include "qemu/help_option.h"
40 #include "qemu/hw-version.h"
41 #include "qemu/uuid.h"
42 #include "sysemu/reset.h"
43 #include "sysemu/runstate.h"
44 #include "sysemu/runstate-action.h"
45 #include "sysemu/seccomp.h"
46 #include "sysemu/tcg.h"
47 #include "sysemu/xen.h"
48
49 #include "qemu/error-report.h"
50 #include "qemu/sockets.h"
51 #include "qemu/accel.h"
52 #include "qemu/async-teardown.h"
53 #include "hw/usb.h"
54 #include "hw/isa/isa.h"
55 #include "hw/scsi/scsi.h"
56 #include "hw/display/vga.h"
57 #include "hw/firmware/smbios.h"
58 #include "hw/acpi/acpi.h"
59 #include "hw/xen/xen.h"
60 #include "hw/loader.h"
61 #include "monitor/qdev.h"
62 #include "net/net.h"
63 #include "net/slirp.h"
64 #include "monitor/monitor.h"
65 #include "ui/console.h"
66 #include "ui/input.h"
67 #include "sysemu/sysemu.h"
68 #include "sysemu/numa.h"
69 #include "sysemu/hostmem.h"
70 #include "exec/gdbstub.h"
71 #include "qemu/timer.h"
72 #include "chardev/char.h"
73 #include "qemu/bitmap.h"
74 #include "qemu/log.h"
75 #include "sysemu/blockdev.h"
76 #include "hw/block/block.h"
77 #include "hw/i386/x86.h"
78 #include "hw/i386/pc.h"
79 #include "migration/misc.h"
80 #include "migration/snapshot.h"
81 #include "sysemu/tpm.h"
82 #include "sysemu/dma.h"
83 #include "hw/audio/soundhw.h"
84 #include "audio/audio.h"
85 #include "sysemu/cpus.h"
86 #include "sysemu/cpu-timers.h"
87 #include "migration/colo.h"
88 #include "migration/postcopy-ram.h"
89 #include "sysemu/kvm.h"
90 #include "qapi/qobject-input-visitor.h"
91 #include "qemu/option.h"
92 #include "qemu/config-file.h"
93 #include "qemu/main-loop.h"
94 #ifdef CONFIG_VIRTFS
95 #include "fsdev/qemu-fsdev.h"
96 #endif
97 #include "sysemu/qtest.h"
98 #ifdef CONFIG_TCG
99 #include "accel/tcg/perf.h"
100 #endif
101
102 #include "disas/disas.h"
103
104 #include "trace.h"
105 #include "trace/control.h"
106 #include "qemu/plugin.h"
107 #include "qemu/queue.h"
108 #include "sysemu/arch_init.h"
109 #include "exec/confidential-guest-support.h"
110
111 #include "ui/qemu-spice.h"
112 #include "qapi/string-input-visitor.h"
113 #include "qapi/opts-visitor.h"
114 #include "qapi/clone-visitor.h"
115 #include "qom/object_interfaces.h"
116 #include "semihosting/semihost.h"
117 #include "crypto/init.h"
118 #include "sysemu/replay.h"
119 #include "qapi/qapi-events-run-state.h"
120 #include "qapi/qapi-types-audio.h"
121 #include "qapi/qapi-visit-audio.h"
122 #include "qapi/qapi-visit-block-core.h"
123 #include "qapi/qapi-visit-compat.h"
124 #include "qapi/qapi-visit-machine.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-migration.h"
128 #include "qapi/qapi-commands-misc.h"
129 #include "qapi/qapi-visit-qom.h"
130 #include "qapi/qapi-commands-ui.h"
131 #include "block/qdict.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134 #include "qemu/guest-random.h"
135 #include "qemu/keyval.h"
136
137 #define MAX_VIRTIO_CONSOLES 1
138
139 typedef struct BlockdevOptionsQueueEntry {
140 BlockdevOptions *bdo;
141 Location loc;
142 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
143 } BlockdevOptionsQueueEntry;
144
145 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
146
147 typedef struct ObjectOption {
148 ObjectOptions *opts;
149 QTAILQ_ENTRY(ObjectOption) next;
150 } ObjectOption;
151
152 typedef struct DeviceOption {
153 QDict *opts;
154 Location loc;
155 QTAILQ_ENTRY(DeviceOption) next;
156 } DeviceOption;
157
158 static const char *cpu_option;
159 static const char *mem_path;
160 static const char *incoming;
161 static const char *loadvm;
162 static const char *accelerators;
163 static bool have_custom_ram_size;
164 static const char *ram_memdev_id;
165 static QDict *machine_opts_dict;
166 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
167 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
168 static int display_remote;
169 static int snapshot;
170 static bool preconfig_requested;
171 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
172 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
173 static bool nographic = false;
174 static int mem_prealloc; /* force preallocation of physical target memory */
175 static const char *vga_model = NULL;
176 static DisplayOptions dpy;
177 static int num_serial_hds;
178 static Chardev **serial_hds;
179 static const char *log_mask;
180 static const char *log_file;
181 static bool list_data_dirs;
182 static const char *qtest_chrdev;
183 static const char *qtest_log;
184 static bool opt_one_insn_per_tb;
185
186 static int has_defaults = 1;
187 static int default_audio = 1;
188 static int default_serial = 1;
189 static int default_parallel = 1;
190 static int default_monitor = 1;
191 static int default_floppy = 1;
192 static int default_cdrom = 1;
193 static int default_sdcard = 1;
194 static int default_vga = 1;
195 static int default_net = 1;
196
197 static struct {
198 const char *driver;
199 int *flag;
200 } default_list[] = {
201 { .driver = "isa-serial", .flag = &default_serial },
202 { .driver = "isa-parallel", .flag = &default_parallel },
203 { .driver = "isa-fdc", .flag = &default_floppy },
204 { .driver = "floppy", .flag = &default_floppy },
205 { .driver = "ide-cd", .flag = &default_cdrom },
206 { .driver = "ide-hd", .flag = &default_cdrom },
207 { .driver = "scsi-cd", .flag = &default_cdrom },
208 { .driver = "scsi-hd", .flag = &default_cdrom },
209 { .driver = "VGA", .flag = &default_vga },
210 { .driver = "isa-vga", .flag = &default_vga },
211 { .driver = "cirrus-vga", .flag = &default_vga },
212 { .driver = "isa-cirrus-vga", .flag = &default_vga },
213 { .driver = "vmware-svga", .flag = &default_vga },
214 { .driver = "qxl-vga", .flag = &default_vga },
215 { .driver = "virtio-vga", .flag = &default_vga },
216 { .driver = "ati-vga", .flag = &default_vga },
217 { .driver = "vhost-user-vga", .flag = &default_vga },
218 { .driver = "virtio-vga-gl", .flag = &default_vga },
219 };
220
221 static QemuOptsList qemu_rtc_opts = {
222 .name = "rtc",
223 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
224 .merge_lists = true,
225 .desc = {
226 {
227 .name = "base",
228 .type = QEMU_OPT_STRING,
229 },{
230 .name = "clock",
231 .type = QEMU_OPT_STRING,
232 },{
233 .name = "driftfix",
234 .type = QEMU_OPT_STRING,
235 },
236 { /* end of list */ }
237 },
238 };
239
240 static QemuOptsList qemu_option_rom_opts = {
241 .name = "option-rom",
242 .implied_opt_name = "romfile",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
244 .desc = {
245 {
246 .name = "bootindex",
247 .type = QEMU_OPT_NUMBER,
248 }, {
249 .name = "romfile",
250 .type = QEMU_OPT_STRING,
251 },
252 { /* end of list */ }
253 },
254 };
255
256 static QemuOptsList qemu_accel_opts = {
257 .name = "accel",
258 .implied_opt_name = "accel",
259 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
260 .desc = {
261 /*
262 * no elements => accept any
263 * sanity checking will happen later
264 * when setting accelerator properties
265 */
266 { }
267 },
268 };
269
270 static QemuOptsList qemu_boot_opts = {
271 .name = "boot-opts",
272 .implied_opt_name = "order",
273 .merge_lists = true,
274 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
275 .desc = {
276 {
277 .name = "order",
278 .type = QEMU_OPT_STRING,
279 }, {
280 .name = "once",
281 .type = QEMU_OPT_STRING,
282 }, {
283 .name = "menu",
284 .type = QEMU_OPT_BOOL,
285 }, {
286 .name = "splash",
287 .type = QEMU_OPT_STRING,
288 }, {
289 .name = "splash-time",
290 .type = QEMU_OPT_NUMBER,
291 }, {
292 .name = "reboot-timeout",
293 .type = QEMU_OPT_NUMBER,
294 }, {
295 .name = "strict",
296 .type = QEMU_OPT_BOOL,
297 },
298 { /*End of list */ }
299 },
300 };
301
302 static QemuOptsList qemu_add_fd_opts = {
303 .name = "add-fd",
304 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
305 .desc = {
306 {
307 .name = "fd",
308 .type = QEMU_OPT_NUMBER,
309 .help = "file descriptor of which a duplicate is added to fd set",
310 },{
311 .name = "set",
312 .type = QEMU_OPT_NUMBER,
313 .help = "ID of the fd set to add fd to",
314 },{
315 .name = "opaque",
316 .type = QEMU_OPT_STRING,
317 .help = "free-form string used to describe fd",
318 },
319 { /* end of list */ }
320 },
321 };
322
323 static QemuOptsList qemu_object_opts = {
324 .name = "object",
325 .implied_opt_name = "qom-type",
326 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
327 .desc = {
328 { }
329 },
330 };
331
332 static QemuOptsList qemu_tpmdev_opts = {
333 .name = "tpmdev",
334 .implied_opt_name = "type",
335 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
336 .desc = {
337 /* options are defined in the TPM backends */
338 { /* end of list */ }
339 },
340 };
341
342 static QemuOptsList qemu_overcommit_opts = {
343 .name = "overcommit",
344 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
345 .desc = {
346 {
347 .name = "mem-lock",
348 .type = QEMU_OPT_BOOL,
349 },
350 {
351 .name = "cpu-pm",
352 .type = QEMU_OPT_BOOL,
353 },
354 { /* end of list */ }
355 },
356 };
357
358 static QemuOptsList qemu_msg_opts = {
359 .name = "msg",
360 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
361 .desc = {
362 {
363 .name = "timestamp",
364 .type = QEMU_OPT_BOOL,
365 },
366 {
367 .name = "guest-name",
368 .type = QEMU_OPT_BOOL,
369 .help = "Prepends guest name for error messages but only if "
370 "-name guest is set otherwise option is ignored\n",
371 },
372 { /* end of list */ }
373 },
374 };
375
376 static QemuOptsList qemu_name_opts = {
377 .name = "name",
378 .implied_opt_name = "guest",
379 .merge_lists = true,
380 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
381 .desc = {
382 {
383 .name = "guest",
384 .type = QEMU_OPT_STRING,
385 .help = "Sets the name of the guest.\n"
386 "This name will be displayed in the SDL window caption.\n"
387 "The name will also be used for the VNC server",
388 }, {
389 .name = "process",
390 .type = QEMU_OPT_STRING,
391 .help = "Sets the name of the QEMU process, as shown in top etc",
392 }, {
393 .name = "debug-threads",
394 .type = QEMU_OPT_BOOL,
395 .help = "When enabled, name the individual threads; defaults off.\n"
396 "NOTE: The thread names are for debugging and not a\n"
397 "stable API.",
398 },
399 { /* End of list */ }
400 },
401 };
402
403 static QemuOptsList qemu_mem_opts = {
404 .name = "memory",
405 .implied_opt_name = "size",
406 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
407 .merge_lists = true,
408 .desc = {
409 {
410 .name = "size",
411 .type = QEMU_OPT_SIZE,
412 },
413 {
414 .name = "slots",
415 .type = QEMU_OPT_NUMBER,
416 },
417 {
418 .name = "maxmem",
419 .type = QEMU_OPT_SIZE,
420 },
421 { /* end of list */ }
422 },
423 };
424
425 static QemuOptsList qemu_icount_opts = {
426 .name = "icount",
427 .implied_opt_name = "shift",
428 .merge_lists = true,
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
430 .desc = {
431 {
432 .name = "shift",
433 .type = QEMU_OPT_STRING,
434 }, {
435 .name = "align",
436 .type = QEMU_OPT_BOOL,
437 }, {
438 .name = "sleep",
439 .type = QEMU_OPT_BOOL,
440 }, {
441 .name = "rr",
442 .type = QEMU_OPT_STRING,
443 }, {
444 .name = "rrfile",
445 .type = QEMU_OPT_STRING,
446 }, {
447 .name = "rrsnapshot",
448 .type = QEMU_OPT_STRING,
449 },
450 { /* end of list */ }
451 },
452 };
453
454 static QemuOptsList qemu_fw_cfg_opts = {
455 .name = "fw_cfg",
456 .implied_opt_name = "name",
457 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
458 .desc = {
459 {
460 .name = "name",
461 .type = QEMU_OPT_STRING,
462 .help = "Sets the fw_cfg name of the blob to be inserted",
463 }, {
464 .name = "file",
465 .type = QEMU_OPT_STRING,
466 .help = "Sets the name of the file from which "
467 "the fw_cfg blob will be loaded",
468 }, {
469 .name = "string",
470 .type = QEMU_OPT_STRING,
471 .help = "Sets content of the blob to be inserted from a string",
472 }, {
473 .name = "gen_id",
474 .type = QEMU_OPT_STRING,
475 .help = "Sets id of the object generating the fw_cfg blob "
476 "to be inserted",
477 },
478 { /* end of list */ }
479 },
480 };
481
482 static QemuOptsList qemu_action_opts = {
483 .name = "action",
484 .merge_lists = true,
485 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
486 .desc = {
487 {
488 .name = "shutdown",
489 .type = QEMU_OPT_STRING,
490 },{
491 .name = "reboot",
492 .type = QEMU_OPT_STRING,
493 },{
494 .name = "panic",
495 .type = QEMU_OPT_STRING,
496 },{
497 .name = "watchdog",
498 .type = QEMU_OPT_STRING,
499 },
500 { /* end of list */ }
501 },
502 };
503
504 const char *qemu_get_vm_name(void)
505 {
506 return qemu_name;
507 }
508
509 static void default_driver_disable(const char *driver)
510 {
511 int i;
512
513 if (!driver) {
514 return;
515 }
516
517 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
518 if (strcmp(default_list[i].driver, driver) != 0)
519 continue;
520 *(default_list[i].flag) = 0;
521 }
522 }
523
524 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
525 {
526 const char *driver = qemu_opt_get(opts, "driver");
527
528 default_driver_disable(driver);
529 return 0;
530 }
531
532 static void default_driver_check_json(void)
533 {
534 DeviceOption *opt;
535
536 QTAILQ_FOREACH(opt, &device_opts, next) {
537 const char *driver = qdict_get_try_str(opt->opts, "driver");
538 default_driver_disable(driver);
539 }
540 }
541
542 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
543 {
544 const char *proc_name;
545
546 if (qemu_opt_get(opts, "debug-threads")) {
547 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
548 }
549 qemu_name = qemu_opt_get(opts, "guest");
550
551 proc_name = qemu_opt_get(opts, "process");
552 if (proc_name) {
553 os_set_proc_name(proc_name);
554 }
555
556 return 0;
557 }
558
559 bool defaults_enabled(void)
560 {
561 return has_defaults;
562 }
563
564 #ifndef _WIN32
565 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
566 {
567 int fd, dupfd, flags;
568 int64_t fdset_id;
569 const char *fd_opaque = NULL;
570 AddfdInfo *fdinfo;
571
572 fd = qemu_opt_get_number(opts, "fd", -1);
573 fdset_id = qemu_opt_get_number(opts, "set", -1);
574 fd_opaque = qemu_opt_get(opts, "opaque");
575
576 if (fd < 0) {
577 error_setg(errp, "fd option is required and must be non-negative");
578 return -1;
579 }
580
581 if (fd <= STDERR_FILENO) {
582 error_setg(errp, "fd cannot be a standard I/O stream");
583 return -1;
584 }
585
586 /*
587 * All fds inherited across exec() necessarily have FD_CLOEXEC
588 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
589 */
590 flags = fcntl(fd, F_GETFD);
591 if (flags == -1 || (flags & FD_CLOEXEC)) {
592 error_setg(errp, "fd is not valid or already in use");
593 return -1;
594 }
595
596 if (fdset_id < 0) {
597 error_setg(errp, "set option is required and must be non-negative");
598 return -1;
599 }
600
601 #ifdef F_DUPFD_CLOEXEC
602 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
603 #else
604 dupfd = dup(fd);
605 if (dupfd != -1) {
606 qemu_set_cloexec(dupfd);
607 }
608 #endif
609 if (dupfd == -1) {
610 error_setg(errp, "error duplicating fd: %s", strerror(errno));
611 return -1;
612 }
613
614 /* add the duplicate fd, and optionally the opaque string, to the fd set */
615 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque,
616 &error_abort);
617 g_free(fdinfo);
618
619 return 0;
620 }
621
622 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
623 {
624 int fd;
625
626 fd = qemu_opt_get_number(opts, "fd", -1);
627 close(fd);
628
629 return 0;
630 }
631 #endif
632
633 /***********************************************************/
634 /* QEMU Block devices */
635
636 #define HD_OPTS "media=disk"
637 #define CDROM_OPTS "media=cdrom"
638 #define FD_OPTS ""
639 #define PFLASH_OPTS ""
640 #define MTD_OPTS ""
641 #define SD_OPTS ""
642
643 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
644 {
645 BlockInterfaceType *block_default_type = opaque;
646
647 return drive_new(opts, *block_default_type, errp) == NULL;
648 }
649
650 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
651 {
652 if (qemu_opt_get(opts, "snapshot") == NULL) {
653 qemu_opt_set(opts, "snapshot", "on", &error_abort);
654 }
655 return 0;
656 }
657
658 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
659 int index, const char *optstr)
660 {
661 QemuOpts *opts;
662 DriveInfo *dinfo;
663
664 if (!enable || drive_get_by_index(type, index)) {
665 return;
666 }
667
668 opts = drive_add(type, index, NULL, optstr);
669 if (snapshot) {
670 drive_enable_snapshot(NULL, opts, NULL);
671 }
672
673 dinfo = drive_new(opts, type, &error_abort);
674 dinfo->is_default = true;
675
676 }
677
678 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
679 MachineClass *machine_class, int snapshot)
680 {
681 /*
682 * If the currently selected machine wishes to override the
683 * units-per-bus property of its default HBA interface type, do so
684 * now.
685 */
686 if (machine_class->units_per_default_bus) {
687 override_max_devs(machine_class->block_default_type,
688 machine_class->units_per_default_bus);
689 }
690
691 /* open the virtual block devices */
692 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
693 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
694
695 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
696 loc_push_restore(&bdo->loc);
697 qmp_blockdev_add(bdo->bdo, &error_fatal);
698 loc_pop(&bdo->loc);
699 qapi_free_BlockdevOptions(bdo->bdo);
700 g_free(bdo);
701 }
702 if (snapshot) {
703 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
704 NULL, NULL);
705 }
706 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
707 &machine_class->block_default_type, &error_fatal)) {
708 /* We printed help */
709 exit(0);
710 }
711
712 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
713 CDROM_OPTS);
714 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
715 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
716
717 }
718
719 static QemuOptsList qemu_smp_opts = {
720 .name = "smp-opts",
721 .implied_opt_name = "cpus",
722 .merge_lists = true,
723 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
724 .desc = {
725 {
726 .name = "cpus",
727 .type = QEMU_OPT_NUMBER,
728 }, {
729 .name = "sockets",
730 .type = QEMU_OPT_NUMBER,
731 }, {
732 .name = "dies",
733 .type = QEMU_OPT_NUMBER,
734 }, {
735 .name = "clusters",
736 .type = QEMU_OPT_NUMBER,
737 }, {
738 .name = "cores",
739 .type = QEMU_OPT_NUMBER,
740 }, {
741 .name = "threads",
742 .type = QEMU_OPT_NUMBER,
743 }, {
744 .name = "maxcpus",
745 .type = QEMU_OPT_NUMBER,
746 },
747 { /*End of list */ }
748 },
749 };
750
751 #if defined(CONFIG_POSIX)
752 static QemuOptsList qemu_run_with_opts = {
753 .name = "run-with",
754 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
755 .desc = {
756 #if defined(CONFIG_LINUX)
757 {
758 .name = "async-teardown",
759 .type = QEMU_OPT_BOOL,
760 },
761 #endif
762 {
763 .name = "chroot",
764 .type = QEMU_OPT_STRING,
765 },
766 { /* end of list */ }
767 },
768 };
769
770 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
771
772 #else
773
774 #define qemu_add_run_with_opts()
775
776 #endif /* CONFIG_POSIX */
777
778 static void realtime_init(void)
779 {
780 if (enable_mlock) {
781 if (os_mlock() < 0) {
782 error_report("locking memory failed");
783 exit(1);
784 }
785 }
786 }
787
788
789 static void configure_msg(QemuOpts *opts)
790 {
791 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
792 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
793 }
794
795
796 /***********************************************************/
797 /* USB devices */
798
799 static int usb_device_add(const char *devname)
800 {
801 USBDevice *dev = NULL;
802
803 if (!machine_usb(current_machine)) {
804 return -1;
805 }
806
807 dev = usbdevice_create(devname);
808 if (!dev)
809 return -1;
810
811 return 0;
812 }
813
814 static int usb_parse(const char *cmdline)
815 {
816 int r;
817 r = usb_device_add(cmdline);
818 if (r < 0) {
819 error_report("could not add USB device '%s'", cmdline);
820 }
821 return r;
822 }
823
824 /***********************************************************/
825 /* machine registration */
826
827 static MachineClass *find_machine(const char *name, GSList *machines)
828 {
829 GSList *el;
830
831 for (el = machines; el; el = el->next) {
832 MachineClass *mc = el->data;
833
834 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
835 return mc;
836 }
837 }
838
839 return NULL;
840 }
841
842 static MachineClass *find_default_machine(GSList *machines)
843 {
844 GSList *el;
845 MachineClass *default_machineclass = NULL;
846
847 for (el = machines; el; el = el->next) {
848 MachineClass *mc = el->data;
849
850 if (mc->is_default) {
851 assert(default_machineclass == NULL && "Multiple default machines");
852 default_machineclass = mc;
853 }
854 }
855
856 return default_machineclass;
857 }
858
859 static void version(void)
860 {
861 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
862 QEMU_COPYRIGHT "\n");
863 }
864
865 static void help(int exitcode)
866 {
867 version();
868 printf("usage: %s [options] [disk_image]\n\n"
869 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
870 g_get_prgname());
871
872 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
873 if ((arch_mask) & arch_type) \
874 fputs(opt_help, stdout);
875
876 #define ARCHHEADING(text, arch_mask) \
877 if ((arch_mask) & arch_type) \
878 puts(stringify(text));
879
880 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
881
882 #include "qemu-options.def"
883
884 printf("\nDuring emulation, the following keys are useful:\n"
885 "ctrl-alt-f toggle full screen\n"
886 "ctrl-alt-n switch to virtual console 'n'\n"
887 "ctrl-alt toggle mouse and keyboard grab\n"
888 "\n"
889 "When using -nographic, press 'ctrl-a h' to get some help.\n"
890 "\n"
891 QEMU_HELP_BOTTOM "\n");
892
893 exit(exitcode);
894 }
895
896 enum {
897
898 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
899 opt_enum,
900 #define DEFHEADING(text)
901 #define ARCHHEADING(text, arch_mask)
902
903 #include "qemu-options.def"
904 };
905
906 #define HAS_ARG 0x0001
907
908 typedef struct QEMUOption {
909 const char *name;
910 int flags;
911 int index;
912 uint32_t arch_mask;
913 } QEMUOption;
914
915 static const QEMUOption qemu_options[] = {
916 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
917
918 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
919 { option, opt_arg, opt_enum, arch_mask },
920 #define DEFHEADING(text)
921 #define ARCHHEADING(text, arch_mask)
922
923 #include "qemu-options.def"
924 { /* end of list */ }
925 };
926
927 typedef struct VGAInterfaceInfo {
928 const char *opt_name; /* option name */
929 const char *name; /* human-readable name */
930 /* Class names indicating that support is available.
931 * If no class is specified, the interface is always available */
932 const char *class_names[2];
933 } VGAInterfaceInfo;
934
935 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
936 [VGA_NONE] = {
937 .opt_name = "none",
938 .name = "no graphic card",
939 },
940 [VGA_STD] = {
941 .opt_name = "std",
942 .name = "standard VGA",
943 .class_names = { "VGA", "isa-vga" },
944 },
945 [VGA_CIRRUS] = {
946 .opt_name = "cirrus",
947 .name = "Cirrus VGA",
948 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
949 },
950 [VGA_VMWARE] = {
951 .opt_name = "vmware",
952 .name = "VMWare SVGA",
953 .class_names = { "vmware-svga" },
954 },
955 [VGA_VIRTIO] = {
956 .opt_name = "virtio",
957 .name = "Virtio VGA",
958 .class_names = { "virtio-vga" },
959 },
960 [VGA_QXL] = {
961 .opt_name = "qxl",
962 .name = "QXL VGA",
963 .class_names = { "qxl-vga" },
964 },
965 [VGA_TCX] = {
966 .opt_name = "tcx",
967 .name = "TCX framebuffer",
968 .class_names = { "sun-tcx" },
969 },
970 [VGA_CG3] = {
971 .opt_name = "cg3",
972 .name = "CG3 framebuffer",
973 .class_names = { "cgthree" },
974 },
975 #ifdef CONFIG_XEN_BACKEND
976 [VGA_XENFB] = {
977 .opt_name = "xenfb",
978 .name = "Xen paravirtualized framebuffer",
979 },
980 #endif
981 };
982
983 static bool vga_interface_available(VGAInterfaceType t)
984 {
985 const VGAInterfaceInfo *ti = &vga_interfaces[t];
986
987 assert(t < VGA_TYPE_MAX);
988 return !ti->class_names[0] ||
989 module_object_class_by_name(ti->class_names[0]) ||
990 module_object_class_by_name(ti->class_names[1]);
991 }
992
993 static const char *
994 get_default_vga_model(const MachineClass *machine_class)
995 {
996 if (machine_class->default_display) {
997 for (int t = 0; t < VGA_TYPE_MAX; t++) {
998 const VGAInterfaceInfo *ti = &vga_interfaces[t];
999
1000 if (ti->opt_name && vga_interface_available(t) &&
1001 g_str_equal(ti->opt_name, machine_class->default_display)) {
1002 return machine_class->default_display;
1003 }
1004 }
1005
1006 warn_report_once("Default display '%s' is not available in this binary",
1007 machine_class->default_display);
1008 return NULL;
1009 } else if (vga_interface_available(VGA_CIRRUS)) {
1010 return "cirrus";
1011 } else if (vga_interface_available(VGA_STD)) {
1012 return "std";
1013 }
1014
1015 return NULL;
1016 }
1017
1018 static void select_vgahw(const MachineClass *machine_class, const char *p)
1019 {
1020 const char *opts;
1021 int t;
1022
1023 if (g_str_equal(p, "help")) {
1024 const char *def = get_default_vga_model(machine_class);
1025
1026 for (t = 0; t < VGA_TYPE_MAX; t++) {
1027 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1028
1029 if (vga_interface_available(t) && ti->opt_name) {
1030 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1031 (def && g_str_equal(ti->opt_name, def)) ?
1032 " (default)" : "");
1033 }
1034 }
1035 exit(0);
1036 }
1037
1038 assert(vga_interface_type == VGA_NONE);
1039 for (t = 0; t < VGA_TYPE_MAX; t++) {
1040 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1041 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1042 if (!vga_interface_available(t)) {
1043 error_report("%s not available", ti->name);
1044 exit(1);
1045 }
1046 vga_interface_type = t;
1047 break;
1048 }
1049 }
1050 if (t == VGA_TYPE_MAX) {
1051 invalid_vga:
1052 error_report("unknown vga type: %s", p);
1053 exit(1);
1054 }
1055 while (*opts) {
1056 const char *nextopt;
1057
1058 if (strstart(opts, ",retrace=", &nextopt)) {
1059 opts = nextopt;
1060 if (strstart(opts, "dumb", &nextopt))
1061 vga_retrace_method = VGA_RETRACE_DUMB;
1062 else if (strstart(opts, "precise", &nextopt))
1063 vga_retrace_method = VGA_RETRACE_PRECISE;
1064 else goto invalid_vga;
1065 } else goto invalid_vga;
1066 opts = nextopt;
1067 }
1068 }
1069
1070 static void parse_display_qapi(const char *str)
1071 {
1072 DisplayOptions *opts;
1073 Visitor *v;
1074
1075 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1076
1077 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1078 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1079
1080 qapi_free_DisplayOptions(opts);
1081 visit_free(v);
1082 }
1083
1084 DisplayOptions *qmp_query_display_options(Error **errp)
1085 {
1086 return QAPI_CLONE(DisplayOptions, &dpy);
1087 }
1088
1089 static void parse_display(const char *p)
1090 {
1091 const char *opts;
1092
1093 if (is_help_option(p)) {
1094 qemu_display_help();
1095 exit(0);
1096 }
1097
1098 if (strstart(p, "vnc", &opts)) {
1099 /*
1100 * vnc isn't a (local) DisplayType but a protocol for remote
1101 * display access.
1102 */
1103 if (*opts == '=') {
1104 vnc_parse(opts + 1);
1105 } else {
1106 error_report("VNC requires a display argument vnc=<display>");
1107 exit(1);
1108 }
1109 } else {
1110 parse_display_qapi(p);
1111 }
1112 }
1113
1114 static inline bool nonempty_str(const char *str)
1115 {
1116 return str && *str;
1117 }
1118
1119 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1120 {
1121 gchar *buf;
1122 size_t size;
1123 const char *name, *file, *str, *gen_id;
1124 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1125
1126 if (fw_cfg == NULL) {
1127 error_setg(errp, "fw_cfg device not available");
1128 return -1;
1129 }
1130 name = qemu_opt_get(opts, "name");
1131 file = qemu_opt_get(opts, "file");
1132 str = qemu_opt_get(opts, "string");
1133 gen_id = qemu_opt_get(opts, "gen_id");
1134
1135 /* we need the name, and exactly one of: file, content string, gen_id */
1136 if (!nonempty_str(name) ||
1137 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1138 error_setg(errp, "name, plus exactly one of file,"
1139 " string and gen_id, are needed");
1140 return -1;
1141 }
1142 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1143 error_setg(errp, "name too long (max. %d char)",
1144 FW_CFG_MAX_FILE_PATH - 1);
1145 return -1;
1146 }
1147 if (nonempty_str(gen_id)) {
1148 /*
1149 * In this particular case where the content is populated
1150 * internally, the "etc/" namespace protection is relaxed,
1151 * so do not emit a warning.
1152 */
1153 } else if (strncmp(name, "opt/", 4) != 0) {
1154 warn_report("externally provided fw_cfg item names "
1155 "should be prefixed with \"opt/\"");
1156 }
1157 if (nonempty_str(str)) {
1158 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1159 buf = g_memdup(str, size);
1160 } else if (nonempty_str(gen_id)) {
1161 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1162 return -1;
1163 }
1164 return 0;
1165 } else {
1166 GError *err = NULL;
1167 if (!g_file_get_contents(file, &buf, &size, &err)) {
1168 error_setg(errp, "can't load %s: %s", file, err->message);
1169 g_error_free(err);
1170 return -1;
1171 }
1172 }
1173 /* For legacy, keep user files in a specific global order. */
1174 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1175 fw_cfg_add_file(fw_cfg, name, buf, size);
1176 fw_cfg_reset_order_override(fw_cfg);
1177 return 0;
1178 }
1179
1180 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1181 {
1182 return qdev_device_help(opts);
1183 }
1184
1185 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1186 {
1187 DeviceState *dev;
1188
1189 dev = qdev_device_add(opts, errp);
1190 if (!dev && *errp) {
1191 error_report_err(*errp);
1192 return -1;
1193 } else if (dev) {
1194 object_unref(OBJECT(dev));
1195 }
1196 return 0;
1197 }
1198
1199 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1200 {
1201 Error *local_err = NULL;
1202
1203 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1204 if (local_err) {
1205 error_propagate(errp, local_err);
1206 return -1;
1207 }
1208 exit(0);
1209 }
1210 return 0;
1211 }
1212
1213 #ifdef CONFIG_VIRTFS
1214 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1215 {
1216 return qemu_fsdev_add(opts, errp);
1217 }
1218 #endif
1219
1220 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1221 {
1222 return monitor_init_opts(opts, errp);
1223 }
1224
1225 static void monitor_parse(const char *str, const char *mode, bool pretty)
1226 {
1227 static int monitor_device_index = 0;
1228 QemuOpts *opts;
1229 const char *p;
1230 char label[32];
1231
1232 if (strstart(str, "chardev:", &p)) {
1233 snprintf(label, sizeof(label), "%s", p);
1234 } else {
1235 snprintf(label, sizeof(label), "compat_monitor%d",
1236 monitor_device_index);
1237 opts = qemu_chr_parse_compat(label, str, true);
1238 if (!opts) {
1239 error_report("parse error: %s", str);
1240 exit(1);
1241 }
1242 }
1243
1244 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1245 qemu_opt_set(opts, "mode", mode, &error_abort);
1246 qemu_opt_set(opts, "chardev", label, &error_abort);
1247 if (!strcmp(mode, "control")) {
1248 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1249 } else {
1250 assert(pretty == false);
1251 }
1252 monitor_device_index++;
1253 }
1254
1255 struct device_config {
1256 enum {
1257 DEV_USB, /* -usbdevice */
1258 DEV_SERIAL, /* -serial */
1259 DEV_PARALLEL, /* -parallel */
1260 DEV_DEBUGCON, /* -debugcon */
1261 DEV_GDB, /* -gdb, -s */
1262 DEV_SCLP, /* s390 sclp */
1263 } type;
1264 const char *cmdline;
1265 Location loc;
1266 QTAILQ_ENTRY(device_config) next;
1267 };
1268
1269 static QTAILQ_HEAD(, device_config) device_configs =
1270 QTAILQ_HEAD_INITIALIZER(device_configs);
1271
1272 static void add_device_config(int type, const char *cmdline)
1273 {
1274 struct device_config *conf;
1275
1276 conf = g_malloc0(sizeof(*conf));
1277 conf->type = type;
1278 conf->cmdline = cmdline;
1279 loc_save(&conf->loc);
1280 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1281 }
1282
1283 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1284 {
1285 struct device_config *conf;
1286 int rc;
1287
1288 QTAILQ_FOREACH(conf, &device_configs, next) {
1289 if (conf->type != type)
1290 continue;
1291 loc_push_restore(&conf->loc);
1292 rc = func(conf->cmdline);
1293 loc_pop(&conf->loc);
1294 if (rc) {
1295 return rc;
1296 }
1297 }
1298 return 0;
1299 }
1300
1301 static void qemu_disable_default_devices(void)
1302 {
1303 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1304
1305 default_driver_check_json();
1306 qemu_opts_foreach(qemu_find_opts("device"),
1307 default_driver_check, NULL, NULL);
1308 qemu_opts_foreach(qemu_find_opts("global"),
1309 default_driver_check, NULL, NULL);
1310
1311 if (!vga_model && !default_vga) {
1312 vga_interface_type = VGA_DEVICE;
1313 vga_interface_created = true;
1314 }
1315 if (!has_defaults || machine_class->no_serial) {
1316 default_serial = 0;
1317 }
1318 if (!has_defaults || machine_class->no_parallel) {
1319 default_parallel = 0;
1320 }
1321 if (!has_defaults || machine_class->no_floppy) {
1322 default_floppy = 0;
1323 }
1324 if (!has_defaults || machine_class->no_cdrom) {
1325 default_cdrom = 0;
1326 }
1327 if (!has_defaults || machine_class->no_sdcard) {
1328 default_sdcard = 0;
1329 }
1330 if (!has_defaults) {
1331 default_audio = 0;
1332 default_monitor = 0;
1333 default_net = 0;
1334 default_vga = 0;
1335 } else {
1336 if (default_net && machine_class->default_nic &&
1337 !module_object_class_by_name(machine_class->default_nic)) {
1338 warn_report("Default NIC '%s' is not available in this binary",
1339 machine_class->default_nic);
1340 default_net = 0;
1341 }
1342 }
1343 }
1344
1345 static void qemu_create_default_devices(void)
1346 {
1347 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1348
1349 if (is_daemonized()) {
1350 /* According to documentation and historically, -nographic redirects
1351 * serial port, parallel port and monitor to stdio, which does not work
1352 * with -daemonize. We can redirect these to null instead, but since
1353 * -nographic is legacy, let's just error out.
1354 * We disallow -nographic only if all other ports are not redirected
1355 * explicitly, to not break existing legacy setups which uses
1356 * -nographic _and_ redirects all ports explicitly - this is valid
1357 * usage, -nographic is just a no-op in this case.
1358 */
1359 if (nographic
1360 && (default_parallel || default_serial || default_monitor)) {
1361 error_report("-nographic cannot be used with -daemonize");
1362 exit(1);
1363 }
1364 }
1365
1366 if (nographic) {
1367 if (default_parallel)
1368 add_device_config(DEV_PARALLEL, "null");
1369 if (default_serial && default_monitor) {
1370 add_device_config(DEV_SERIAL, "mon:stdio");
1371 } else {
1372 if (default_serial)
1373 add_device_config(DEV_SERIAL, "stdio");
1374 if (default_monitor)
1375 monitor_parse("stdio", "readline", false);
1376 }
1377 } else {
1378 if (default_serial)
1379 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1380 if (default_parallel)
1381 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1382 if (default_monitor)
1383 monitor_parse("vc:80Cx24C", "readline", false);
1384 }
1385
1386 if (default_net) {
1387 QemuOptsList *net = qemu_find_opts("net");
1388 qemu_opts_parse(net, "nic", true, &error_abort);
1389 #ifdef CONFIG_SLIRP
1390 qemu_opts_parse(net, "user", true, &error_abort);
1391 #endif
1392 }
1393
1394 #if defined(CONFIG_VNC)
1395 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
1396 display_remote++;
1397 }
1398 #endif
1399 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1400 if (!qemu_display_find_default(&dpy)) {
1401 dpy.type = DISPLAY_TYPE_NONE;
1402 #if defined(CONFIG_VNC)
1403 vnc_parse("localhost:0,to=99,id=default");
1404 #endif
1405 }
1406 }
1407 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1408 dpy.type = DISPLAY_TYPE_NONE;
1409 }
1410
1411 /* If no default VGA is requested, the default is "none". */
1412 if (default_vga) {
1413 vga_model = get_default_vga_model(machine_class);
1414 }
1415 if (vga_model) {
1416 select_vgahw(machine_class, vga_model);
1417 }
1418 }
1419
1420 static int serial_parse(const char *devname)
1421 {
1422 int index = num_serial_hds;
1423 char label[32];
1424
1425 if (strcmp(devname, "none") == 0)
1426 return 0;
1427 snprintf(label, sizeof(label), "serial%d", index);
1428 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1429
1430 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1431 if (!serial_hds[index]) {
1432 error_report("could not connect serial device"
1433 " to character backend '%s'", devname);
1434 return -1;
1435 }
1436 num_serial_hds++;
1437 return 0;
1438 }
1439
1440 Chardev *serial_hd(int i)
1441 {
1442 assert(i >= 0);
1443 if (i < num_serial_hds) {
1444 return serial_hds[i];
1445 }
1446 return NULL;
1447 }
1448
1449 static int parallel_parse(const char *devname)
1450 {
1451 static int index = 0;
1452 char label[32];
1453
1454 if (strcmp(devname, "none") == 0)
1455 return 0;
1456 if (index == MAX_PARALLEL_PORTS) {
1457 error_report("too many parallel ports");
1458 exit(1);
1459 }
1460 snprintf(label, sizeof(label), "parallel%d", index);
1461 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1462 if (!parallel_hds[index]) {
1463 error_report("could not connect parallel device"
1464 " to character backend '%s'", devname);
1465 return -1;
1466 }
1467 index++;
1468 return 0;
1469 }
1470
1471 static int debugcon_parse(const char *devname)
1472 {
1473 QemuOpts *opts;
1474
1475 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1476 error_report("invalid character backend '%s'", devname);
1477 exit(1);
1478 }
1479 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1480 if (!opts) {
1481 error_report("already have a debugcon device");
1482 exit(1);
1483 }
1484 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1485 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1486 return 0;
1487 }
1488
1489 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1490 {
1491 const MachineClass *mc1 = a, *mc2 = b;
1492 int res;
1493
1494 if (mc1->family == NULL) {
1495 if (mc2->family == NULL) {
1496 /* Compare standalone machine types against each other; they sort
1497 * in increasing order.
1498 */
1499 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1500 object_class_get_name(OBJECT_CLASS(mc2)));
1501 }
1502
1503 /* Standalone machine types sort after families. */
1504 return 1;
1505 }
1506
1507 if (mc2->family == NULL) {
1508 /* Families sort before standalone machine types. */
1509 return -1;
1510 }
1511
1512 /* Families sort between each other alphabetically increasingly. */
1513 res = strcmp(mc1->family, mc2->family);
1514 if (res != 0) {
1515 return res;
1516 }
1517
1518 /* Within the same family, machine types sort in decreasing order. */
1519 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1520 object_class_get_name(OBJECT_CLASS(mc1)));
1521 }
1522
1523 static void machine_help_func(const QDict *qdict)
1524 {
1525 GSList *machines, *el;
1526 const char *type = qdict_get_try_str(qdict, "type");
1527
1528 machines = object_class_get_list(TYPE_MACHINE, false);
1529 if (type) {
1530 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1531 if (machine_class) {
1532 type_print_class_properties(object_class_get_name(machine_class));
1533 return;
1534 }
1535 }
1536
1537 printf("Supported machines are:\n");
1538 machines = g_slist_sort(machines, machine_class_cmp);
1539 for (el = machines; el; el = el->next) {
1540 MachineClass *mc = el->data;
1541 if (mc->alias) {
1542 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1543 }
1544 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1545 mc->is_default ? " (default)" : "",
1546 mc->deprecation_reason ? " (deprecated)" : "");
1547 }
1548 }
1549
1550 static void
1551 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1552 {
1553 QDict *opts;
1554
1555 opts = qdict_new();
1556 /* Preserve the caller's reference to prop. */
1557 qobject_ref(prop);
1558 qdict_put(opts, propname, prop);
1559 keyval_merge(machine_opts_dict, opts, errp);
1560 qobject_unref(opts);
1561 }
1562
1563 static void
1564 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1565 const char *arg)
1566 {
1567 QDict *prop = NULL;
1568 bool help = false;
1569
1570 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1571 if (help) {
1572 qemu_opts_print_help(opts_list, true);
1573 exit(0);
1574 }
1575 machine_merge_property(propname, prop, &error_fatal);
1576 qobject_unref(prop);
1577 }
1578
1579 static const char *pid_file;
1580 struct UnlinkPidfileNotifier {
1581 Notifier notifier;
1582 char *pid_file_realpath;
1583 };
1584 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1585
1586 static void qemu_unlink_pidfile(Notifier *n, void *data)
1587 {
1588 struct UnlinkPidfileNotifier *upn;
1589
1590 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1591 unlink(upn->pid_file_realpath);
1592 }
1593
1594 static const QEMUOption *lookup_opt(int argc, char **argv,
1595 const char **poptarg, int *poptind)
1596 {
1597 const QEMUOption *popt;
1598 int optind = *poptind;
1599 char *r = argv[optind];
1600 const char *optarg;
1601
1602 loc_set_cmdline(argv, optind, 1);
1603 optind++;
1604 /* Treat --foo the same as -foo. */
1605 if (r[1] == '-')
1606 r++;
1607 popt = qemu_options;
1608 for(;;) {
1609 if (!popt->name) {
1610 error_report("invalid option");
1611 exit(1);
1612 }
1613 if (!strcmp(popt->name, r + 1))
1614 break;
1615 popt++;
1616 }
1617 if (popt->flags & HAS_ARG) {
1618 if (optind >= argc) {
1619 error_report("requires an argument");
1620 exit(1);
1621 }
1622 optarg = argv[optind++];
1623 loc_set_cmdline(argv, optind - 2, 2);
1624 } else {
1625 optarg = NULL;
1626 }
1627
1628 *poptarg = optarg;
1629 *poptind = optind;
1630
1631 return popt;
1632 }
1633
1634 static MachineClass *select_machine(QDict *qdict, Error **errp)
1635 {
1636 const char *machine_type = qdict_get_try_str(qdict, "type");
1637 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1638 MachineClass *machine_class;
1639 Error *local_err = NULL;
1640
1641 if (machine_type) {
1642 machine_class = find_machine(machine_type, machines);
1643 qdict_del(qdict, "type");
1644 if (!machine_class) {
1645 error_setg(&local_err, "unsupported machine type");
1646 }
1647 } else {
1648 machine_class = find_default_machine(machines);
1649 if (!machine_class) {
1650 error_setg(&local_err, "No machine specified, and there is no default");
1651 }
1652 }
1653
1654 g_slist_free(machines);
1655 if (local_err) {
1656 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1657 error_propagate(errp, local_err);
1658 }
1659 return machine_class;
1660 }
1661
1662 static int object_parse_property_opt(Object *obj,
1663 const char *name, const char *value,
1664 const char *skip, Error **errp)
1665 {
1666 if (g_str_equal(name, skip)) {
1667 return 0;
1668 }
1669
1670 if (!object_property_parse(obj, name, value, errp)) {
1671 return -1;
1672 }
1673
1674 return 0;
1675 }
1676
1677 /* *Non*recursively replace underscores with dashes in QDict keys. */
1678 static void keyval_dashify(QDict *qdict, Error **errp)
1679 {
1680 const QDictEntry *ent, *next;
1681 char *p;
1682
1683 for (ent = qdict_first(qdict); ent; ent = next) {
1684 g_autofree char *new_key = NULL;
1685
1686 next = qdict_next(qdict, ent);
1687 if (!strchr(ent->key, '_')) {
1688 continue;
1689 }
1690 new_key = g_strdup(ent->key);
1691 for (p = new_key; *p; p++) {
1692 if (*p == '_') {
1693 *p = '-';
1694 }
1695 }
1696 if (qdict_haskey(qdict, new_key)) {
1697 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1698 return;
1699 }
1700 qobject_ref(ent->value);
1701 qdict_put_obj(qdict, new_key, ent->value);
1702 qdict_del(qdict, ent->key);
1703 }
1704 }
1705
1706 static void qemu_apply_legacy_machine_options(QDict *qdict)
1707 {
1708 const char *value;
1709 QObject *prop;
1710
1711 keyval_dashify(qdict, &error_fatal);
1712
1713 /* Legacy options do not correspond to MachineState properties. */
1714 value = qdict_get_try_str(qdict, "accel");
1715 if (value) {
1716 accelerators = g_strdup(value);
1717 qdict_del(qdict, "accel");
1718 }
1719
1720 value = qdict_get_try_str(qdict, "igd-passthru");
1721 if (value) {
1722 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1723 false);
1724 qdict_del(qdict, "igd-passthru");
1725 }
1726
1727 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1728 if (value) {
1729 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1730 false);
1731 qdict_del(qdict, "kvm-shadow-mem");
1732 }
1733
1734 value = qdict_get_try_str(qdict, "kernel-irqchip");
1735 if (value) {
1736 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1737 false);
1738 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1739 false);
1740 qdict_del(qdict, "kernel-irqchip");
1741 }
1742
1743 value = qdict_get_try_str(qdict, "memory-backend");
1744 if (value) {
1745 if (mem_path) {
1746 error_report("'-mem-path' can't be used together with"
1747 "'-machine memory-backend'");
1748 exit(EXIT_FAILURE);
1749 }
1750
1751 /* Resolved later. */
1752 ram_memdev_id = g_strdup(value);
1753 qdict_del(qdict, "memory-backend");
1754 }
1755
1756 prop = qdict_get(qdict, "memory");
1757 if (prop) {
1758 have_custom_ram_size =
1759 qobject_type(prop) == QTYPE_QDICT &&
1760 qdict_haskey(qobject_to(QDict, prop), "size");
1761 }
1762 }
1763
1764 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1765 {
1766 ObjectOption *opt, *next;
1767
1768 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1769 const char *type = ObjectType_str(opt->opts->qom_type);
1770 if (type_opt_predicate(type)) {
1771 user_creatable_add_qapi(opt->opts, &error_fatal);
1772 qapi_free_ObjectOptions(opt->opts);
1773 QTAILQ_REMOVE(&object_opts, opt, next);
1774 g_free(opt);
1775 }
1776 }
1777 }
1778
1779 static void object_option_add_visitor(Visitor *v)
1780 {
1781 ObjectOption *opt = g_new0(ObjectOption, 1);
1782 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1783 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1784 }
1785
1786 static void object_option_parse(const char *str)
1787 {
1788 QemuOpts *opts;
1789 const char *type;
1790 Visitor *v;
1791
1792 if (str[0] == '{') {
1793 QObject *obj = qobject_from_json(str, &error_fatal);
1794
1795 v = qobject_input_visitor_new(obj);
1796 qobject_unref(obj);
1797 } else {
1798 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1799 str, true);
1800 if (!opts) {
1801 exit(1);
1802 }
1803
1804 type = qemu_opt_get(opts, "qom-type");
1805 if (!type) {
1806 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1807 }
1808 if (user_creatable_print_help(type, opts)) {
1809 exit(0);
1810 }
1811
1812 v = opts_visitor_new(opts);
1813 }
1814
1815 object_option_add_visitor(v);
1816 visit_free(v);
1817 }
1818
1819 /*
1820 * Very early object creation, before the sandbox options have been activated.
1821 */
1822 static bool object_create_pre_sandbox(const char *type)
1823 {
1824 /*
1825 * Objects should in general not get initialized "too early" without
1826 * a reason. If you add one, state the reason in a comment!
1827 */
1828
1829 /*
1830 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1831 * affinity of threads.
1832 */
1833 if (g_str_equal(type, "thread-context")) {
1834 return true;
1835 }
1836
1837 return false;
1838 }
1839
1840 /*
1841 * Initial object creation happens before all other
1842 * QEMU data types are created. The majority of objects
1843 * can be created at this point. The rng-egd object
1844 * cannot be created here, as it depends on the chardev
1845 * already existing.
1846 */
1847 static bool object_create_early(const char *type)
1848 {
1849 /*
1850 * Objects should not be made "delayed" without a reason. If you
1851 * add one, state the reason in a comment!
1852 */
1853
1854 /* Reason: already created. */
1855 if (object_create_pre_sandbox(type)) {
1856 return false;
1857 }
1858
1859 /* Reason: property "chardev" */
1860 if (g_str_equal(type, "rng-egd") ||
1861 g_str_equal(type, "qtest")) {
1862 return false;
1863 }
1864
1865 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1866 /* Reason: cryptodev-vhost-user property "chardev" */
1867 if (g_str_equal(type, "cryptodev-vhost-user")) {
1868 return false;
1869 }
1870 #endif
1871
1872 /* Reason: vhost-user-blk-server property "node-name" */
1873 if (g_str_equal(type, "vhost-user-blk-server")) {
1874 return false;
1875 }
1876 /*
1877 * Reason: filter-* property "netdev" etc.
1878 */
1879 if (g_str_equal(type, "filter-buffer") ||
1880 g_str_equal(type, "filter-dump") ||
1881 g_str_equal(type, "filter-mirror") ||
1882 g_str_equal(type, "filter-redirector") ||
1883 g_str_equal(type, "colo-compare") ||
1884 g_str_equal(type, "filter-rewriter") ||
1885 g_str_equal(type, "filter-replay")) {
1886 return false;
1887 }
1888
1889 /*
1890 * Allocation of large amounts of memory may delay
1891 * chardev initialization for too long, and trigger timeouts
1892 * on software that waits for a monitor socket to be created
1893 * (e.g. libvirt).
1894 */
1895 if (g_str_has_prefix(type, "memory-backend-")) {
1896 return false;
1897 }
1898
1899 return true;
1900 }
1901
1902 static void qemu_apply_machine_options(QDict *qdict)
1903 {
1904 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1905
1906 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1907 /* fall back to the -kernel/-append */
1908 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1909 }
1910
1911 if (current_machine->smp.cpus > 1) {
1912 replay_add_blocker("smp");
1913 }
1914 }
1915
1916 static void qemu_create_early_backends(void)
1917 {
1918 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1919 #if defined(CONFIG_SDL)
1920 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1921 #else
1922 const bool use_sdl = false;
1923 #endif
1924 #if defined(CONFIG_GTK)
1925 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1926 #else
1927 const bool use_gtk = false;
1928 #endif
1929
1930 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1931 error_report("window-close is only valid for GTK and SDL, "
1932 "ignoring option");
1933 }
1934
1935 qemu_display_early_init(&dpy);
1936 qemu_console_early_init();
1937
1938 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1939 #if defined(CONFIG_OPENGL)
1940 error_report("OpenGL is not supported by the display");
1941 #else
1942 error_report("OpenGL support is disabled");
1943 #endif
1944 exit(1);
1945 }
1946
1947 object_option_foreach_add(object_create_early);
1948
1949 /* spice needs the timers to be initialized by this point */
1950 /* spice must initialize before audio as it changes the default audiodev */
1951 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1952 qemu_spice.init();
1953
1954 qemu_opts_foreach(qemu_find_opts("chardev"),
1955 chardev_init_func, NULL, &error_fatal);
1956
1957 #ifdef CONFIG_VIRTFS
1958 qemu_opts_foreach(qemu_find_opts("fsdev"),
1959 fsdev_init_func, NULL, &error_fatal);
1960 #endif
1961
1962 /*
1963 * Note: we need to create audio and block backends before
1964 * setting machine properties, so they can be referred to.
1965 */
1966 configure_blockdev(&bdo_queue, machine_class, snapshot);
1967 audio_init_audiodevs();
1968 if (default_audio) {
1969 audio_create_default_audiodevs();
1970 }
1971 }
1972
1973
1974 /*
1975 * The remainder of object creation happens after the
1976 * creation of chardev, fsdev, net clients and device data types.
1977 */
1978 static bool object_create_late(const char *type)
1979 {
1980 return !object_create_early(type) && !object_create_pre_sandbox(type);
1981 }
1982
1983 static void qemu_create_late_backends(void)
1984 {
1985 if (qtest_chrdev) {
1986 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
1987 }
1988
1989 net_init_clients();
1990
1991 object_option_foreach_add(object_create_late);
1992
1993 if (tpm_init() < 0) {
1994 exit(1);
1995 }
1996
1997 qemu_opts_foreach(qemu_find_opts("mon"),
1998 mon_init_func, NULL, &error_fatal);
1999
2000 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2001 exit(1);
2002 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2003 exit(1);
2004 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2005 exit(1);
2006
2007 /* now chardevs have been created we may have semihosting to connect */
2008 qemu_semihosting_chardev_init();
2009 }
2010
2011 static void qemu_resolve_machine_memdev(void)
2012 {
2013 if (ram_memdev_id) {
2014 Object *backend;
2015 ram_addr_t backend_size;
2016
2017 backend = object_resolve_path_type(ram_memdev_id,
2018 TYPE_MEMORY_BACKEND, NULL);
2019 if (!backend) {
2020 error_report("Memory backend '%s' not found", ram_memdev_id);
2021 exit(EXIT_FAILURE);
2022 }
2023 if (!have_custom_ram_size) {
2024 backend_size = object_property_get_uint(backend, "size", &error_abort);
2025 current_machine->ram_size = backend_size;
2026 }
2027 object_property_set_link(OBJECT(current_machine),
2028 "memory-backend", backend, &error_fatal);
2029 }
2030 }
2031
2032 static void parse_memory_options(void)
2033 {
2034 QemuOpts *opts = qemu_find_opts_singleton("memory");
2035 QDict *dict, *prop;
2036 const char *mem_str;
2037 Location loc;
2038
2039 loc_push_none(&loc);
2040 qemu_opts_loc_restore(opts);
2041
2042 prop = qdict_new();
2043
2044 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2045 /* Fix up legacy suffix-less format */
2046 mem_str = qemu_opt_get(opts, "size");
2047 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2048 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2049 qdict_put_str(prop, "size", mib_str);
2050 } else {
2051 qdict_put_str(prop, "size", mem_str);
2052 }
2053 }
2054
2055 if (qemu_opt_get(opts, "maxmem")) {
2056 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2057 }
2058 if (qemu_opt_get(opts, "slots")) {
2059 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2060 }
2061
2062 dict = qdict_new();
2063 qdict_put(dict, "memory", prop);
2064 keyval_merge(machine_opts_dict, dict, &error_fatal);
2065 qobject_unref(dict);
2066 loc_pop(&loc);
2067 }
2068
2069 static void qemu_create_machine(QDict *qdict)
2070 {
2071 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2072 object_set_machine_compat_props(machine_class->compat_props);
2073
2074 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2075 object_property_add_child(object_get_root(), "machine",
2076 OBJECT(current_machine));
2077 object_property_add_child(container_get(OBJECT(current_machine),
2078 "/unattached"),
2079 "sysbus", OBJECT(sysbus_get_default()));
2080
2081 if (machine_class->minimum_page_bits) {
2082 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2083 /* This would be a board error: specifying a minimum smaller than
2084 * a target's compile-time fixed setting.
2085 */
2086 g_assert_not_reached();
2087 }
2088 }
2089
2090 cpu_exec_init_all();
2091 page_size_init();
2092
2093 if (machine_class->hw_version) {
2094 qemu_set_hw_version(machine_class->hw_version);
2095 }
2096
2097 /*
2098 * Get the default machine options from the machine if it is not already
2099 * specified either by the configuration file or by the command line.
2100 */
2101 if (machine_class->default_machine_opts) {
2102 QDict *default_opts =
2103 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2104 &error_abort);
2105 qemu_apply_legacy_machine_options(default_opts);
2106 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2107 false, &error_abort);
2108 qobject_unref(default_opts);
2109 }
2110 }
2111
2112 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2113 {
2114 GlobalProperty *g;
2115
2116 g = g_malloc0(sizeof(*g));
2117 g->driver = qemu_opt_get(opts, "driver");
2118 g->property = qemu_opt_get(opts, "property");
2119 g->value = qemu_opt_get(opts, "value");
2120 qdev_prop_register_global(g);
2121 return 0;
2122 }
2123
2124 /*
2125 * Return whether configuration group @group is stored in QemuOpts, or
2126 * recorded as one or more QDicts by qemu_record_config_group.
2127 */
2128 static bool is_qemuopts_group(const char *group)
2129 {
2130 if (g_str_equal(group, "object") ||
2131 g_str_equal(group, "audiodev") ||
2132 g_str_equal(group, "machine") ||
2133 g_str_equal(group, "smp-opts") ||
2134 g_str_equal(group, "boot-opts")) {
2135 return false;
2136 }
2137 return true;
2138 }
2139
2140 static void qemu_record_config_group(const char *group, QDict *dict,
2141 bool from_json, Error **errp)
2142 {
2143 if (g_str_equal(group, "object")) {
2144 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2145 object_option_add_visitor(v);
2146 visit_free(v);
2147
2148 } else if (g_str_equal(group, "audiodev")) {
2149 Audiodev *dev = NULL;
2150 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2151 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2152 audio_define(dev);
2153 }
2154 visit_free(v);
2155
2156 } else if (g_str_equal(group, "machine")) {
2157 /*
2158 * Cannot merge string-valued and type-safe dictionaries, so JSON
2159 * is not accepted yet for -M.
2160 */
2161 assert(!from_json);
2162 keyval_merge(machine_opts_dict, dict, errp);
2163 } else if (g_str_equal(group, "smp-opts")) {
2164 machine_merge_property("smp", dict, &error_fatal);
2165 } else if (g_str_equal(group, "boot-opts")) {
2166 machine_merge_property("boot", dict, &error_fatal);
2167 } else {
2168 abort();
2169 }
2170 }
2171
2172 /*
2173 * Parse non-QemuOpts config file groups, pass the rest to
2174 * qemu_config_do_parse.
2175 */
2176 static void qemu_parse_config_group(const char *group, QDict *qdict,
2177 void *opaque, Error **errp)
2178 {
2179 QObject *crumpled;
2180 if (is_qemuopts_group(group)) {
2181 qemu_config_do_parse(group, qdict, opaque, errp);
2182 return;
2183 }
2184
2185 crumpled = qdict_crumple(qdict, errp);
2186 if (!crumpled) {
2187 return;
2188 }
2189 switch (qobject_type(crumpled)) {
2190 case QTYPE_QDICT:
2191 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2192 break;
2193 case QTYPE_QLIST:
2194 error_setg(errp, "Lists cannot be at top level of a configuration section");
2195 break;
2196 default:
2197 g_assert_not_reached();
2198 }
2199 qobject_unref(crumpled);
2200 }
2201
2202 static void qemu_read_default_config_file(Error **errp)
2203 {
2204 ERRP_GUARD();
2205 int ret;
2206 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2207
2208 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2209 if (ret < 0) {
2210 if (ret == -ENOENT) {
2211 error_free(*errp);
2212 *errp = NULL;
2213 }
2214 }
2215 }
2216
2217 static void qemu_set_option(const char *str, Error **errp)
2218 {
2219 char group[64], id[64], arg[64];
2220 QemuOptsList *list;
2221 QemuOpts *opts;
2222 int rc, offset;
2223
2224 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2225 if (rc < 3 || str[offset] != '=') {
2226 error_setg(errp, "can't parse: \"%s\"", str);
2227 return;
2228 }
2229
2230 if (!is_qemuopts_group(group)) {
2231 error_setg(errp, "-set is not supported with %s", group);
2232 } else {
2233 list = qemu_find_opts_err(group, errp);
2234 if (list) {
2235 opts = qemu_opts_find(list, id);
2236 if (!opts) {
2237 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2238 return;
2239 }
2240 qemu_opt_set(opts, arg, str + offset + 1, errp);
2241 }
2242 }
2243 }
2244
2245 static void user_register_global_props(void)
2246 {
2247 qemu_opts_foreach(qemu_find_opts("global"),
2248 global_init_func, NULL, NULL);
2249 }
2250
2251 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2252 {
2253 icount_configure(opts, errp);
2254 return 0;
2255 }
2256
2257 static int accelerator_set_property(void *opaque,
2258 const char *name, const char *value,
2259 Error **errp)
2260 {
2261 return object_parse_property_opt(opaque, name, value, "accel", errp);
2262 }
2263
2264 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2265 {
2266 bool *p_init_failed = opaque;
2267 const char *acc = qemu_opt_get(opts, "accel");
2268 AccelClass *ac = accel_find(acc);
2269 AccelState *accel;
2270 int ret;
2271 bool qtest_with_kvm;
2272
2273 if (!acc) {
2274 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2275 goto bad;
2276 }
2277
2278 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2279
2280 if (!ac) {
2281 if (!qtest_with_kvm) {
2282 error_report("invalid accelerator %s", acc);
2283 }
2284 goto bad;
2285 }
2286 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2287 object_apply_compat_props(OBJECT(accel));
2288 qemu_opt_foreach(opts, accelerator_set_property,
2289 accel,
2290 &error_fatal);
2291 /*
2292 * If legacy -singlestep option is set, honour it for TCG and
2293 * silently ignore for any other accelerator (which is how this
2294 * option has always behaved).
2295 */
2296 if (opt_one_insn_per_tb) {
2297 /*
2298 * This will always succeed for TCG, and we want to ignore
2299 * the error from trying to set a nonexistent property
2300 * on any other accelerator.
2301 */
2302 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL);
2303 }
2304 ret = accel_init_machine(accel, current_machine);
2305 if (ret < 0) {
2306 if (!qtest_with_kvm || ret != -ENOENT) {
2307 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2308 }
2309 goto bad;
2310 }
2311
2312 return 1;
2313
2314 bad:
2315 *p_init_failed = true;
2316 return 0;
2317 }
2318
2319 static void configure_accelerators(const char *progname)
2320 {
2321 bool init_failed = false;
2322
2323 qemu_opts_foreach(qemu_find_opts("icount"),
2324 do_configure_icount, NULL, &error_fatal);
2325
2326 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2327 char **accel_list, **tmp;
2328
2329 if (accelerators == NULL) {
2330 /* Select the default accelerator */
2331 bool have_tcg = accel_find("tcg");
2332 bool have_kvm = accel_find("kvm");
2333
2334 if (have_tcg && have_kvm) {
2335 if (g_str_has_suffix(progname, "kvm")) {
2336 /* If the program name ends with "kvm", we prefer KVM */
2337 accelerators = "kvm:tcg";
2338 } else {
2339 accelerators = "tcg:kvm";
2340 }
2341 } else if (have_kvm) {
2342 accelerators = "kvm";
2343 } else if (have_tcg) {
2344 accelerators = "tcg";
2345 } else {
2346 error_report("No accelerator selected and"
2347 " no default accelerator available");
2348 exit(1);
2349 }
2350 }
2351 accel_list = g_strsplit(accelerators, ":", 0);
2352
2353 for (tmp = accel_list; *tmp; tmp++) {
2354 /*
2355 * Filter invalid accelerators here, to prevent obscenities
2356 * such as "-machine accel=tcg,,thread=single".
2357 */
2358 if (accel_find(*tmp)) {
2359 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2360 } else {
2361 init_failed = true;
2362 error_report("invalid accelerator %s", *tmp);
2363 }
2364 }
2365 g_strfreev(accel_list);
2366 } else {
2367 if (accelerators != NULL) {
2368 error_report("The -accel and \"-machine accel=\" options are incompatible");
2369 exit(1);
2370 }
2371 }
2372
2373 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2374 do_configure_accelerator, &init_failed, &error_fatal)) {
2375 if (!init_failed) {
2376 error_report("no accelerator found");
2377 }
2378 exit(1);
2379 }
2380
2381 if (init_failed && !qtest_chrdev) {
2382 error_report("falling back to %s", current_accel_name());
2383 }
2384
2385 if (icount_enabled() && !tcg_enabled()) {
2386 error_report("-icount is not allowed with hardware virtualization");
2387 exit(1);
2388 }
2389 }
2390
2391 static void qemu_validate_options(const QDict *machine_opts)
2392 {
2393 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2394 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2395 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2396
2397 if (kernel_filename == NULL) {
2398 if (kernel_cmdline != NULL) {
2399 error_report("-append only allowed with -kernel option");
2400 exit(1);
2401 }
2402
2403 if (initrd_filename != NULL) {
2404 error_report("-initrd only allowed with -kernel option");
2405 exit(1);
2406 }
2407 }
2408
2409 if (loadvm && preconfig_requested) {
2410 error_report("'preconfig' and 'loadvm' options are "
2411 "mutually exclusive");
2412 exit(EXIT_FAILURE);
2413 }
2414 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2415 error_report("'preconfig' supports '-incoming defer' only");
2416 exit(EXIT_FAILURE);
2417 }
2418
2419 #ifdef CONFIG_CURSES
2420 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2421 error_report("curses display cannot be used with -daemonize");
2422 exit(1);
2423 }
2424 #endif
2425 }
2426
2427 static void qemu_process_sugar_options(void)
2428 {
2429 if (mem_prealloc) {
2430 QObject *smp = qdict_get(machine_opts_dict, "smp");
2431 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2432 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2433 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2434 const char *val = qstring_get_str(qobject_to(QString, cpus));
2435 object_register_sugar_prop("memory-backend", "prealloc-threads",
2436 val, false);
2437 }
2438 }
2439 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2440 }
2441 }
2442
2443 /* -action processing */
2444
2445 /*
2446 * Process all the -action parameters parsed from cmdline.
2447 */
2448 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2449 {
2450 Error *local_err = NULL;
2451 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2452 QObject *ret = NULL;
2453 qmp_marshal_set_action(qdict, &ret, &local_err);
2454 qobject_unref(ret);
2455 qobject_unref(qdict);
2456 if (local_err) {
2457 error_propagate(errp, local_err);
2458 return 1;
2459 }
2460 return 0;
2461 }
2462
2463 static void qemu_process_early_options(void)
2464 {
2465 qemu_opts_foreach(qemu_find_opts("name"),
2466 parse_name, NULL, &error_fatal);
2467
2468 object_option_foreach_add(object_create_pre_sandbox);
2469
2470 #ifdef CONFIG_SECCOMP
2471 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2472 if (olist) {
2473 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2474 }
2475 #endif
2476
2477 if (qemu_opts_foreach(qemu_find_opts("action"),
2478 process_runstate_actions, NULL, &error_fatal)) {
2479 exit(1);
2480 }
2481
2482 #ifndef _WIN32
2483 qemu_opts_foreach(qemu_find_opts("add-fd"),
2484 parse_add_fd, NULL, &error_fatal);
2485
2486 qemu_opts_foreach(qemu_find_opts("add-fd"),
2487 cleanup_add_fd, NULL, &error_fatal);
2488 #endif
2489
2490 /* Open the logfile at this point and set the log mask if necessary. */
2491 {
2492 int mask = 0;
2493 if (log_mask) {
2494 mask = qemu_str_to_log_mask(log_mask);
2495 if (!mask) {
2496 qemu_print_log_usage(stdout);
2497 exit(1);
2498 }
2499 }
2500 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2501 }
2502
2503 qemu_add_default_firmwarepath();
2504 }
2505
2506 static void qemu_process_help_options(void)
2507 {
2508 /*
2509 * Check for -cpu help and -device help before we call select_machine(),
2510 * which will return an error if the architecture has no default machine
2511 * type and the user did not specify one, so that the user doesn't need
2512 * to say '-cpu help -machine something'.
2513 */
2514 if (cpu_option && is_help_option(cpu_option)) {
2515 list_cpus();
2516 exit(0);
2517 }
2518
2519 if (qemu_opts_foreach(qemu_find_opts("device"),
2520 device_help_func, NULL, NULL)) {
2521 exit(0);
2522 }
2523
2524 /* -L help lists the data directories and exits. */
2525 if (list_data_dirs) {
2526 qemu_list_data_dirs();
2527 exit(0);
2528 }
2529 }
2530
2531 static void qemu_maybe_daemonize(const char *pid_file)
2532 {
2533 Error *err = NULL;
2534
2535 os_daemonize();
2536 rcu_disable_atfork();
2537
2538 if (pid_file) {
2539 char *pid_file_realpath = NULL;
2540
2541 if (!qemu_write_pidfile(pid_file, &err)) {
2542 error_reportf_err(err, "cannot create PID file: ");
2543 exit(1);
2544 }
2545
2546 pid_file_realpath = g_malloc0(PATH_MAX);
2547 if (!realpath(pid_file, pid_file_realpath)) {
2548 if (errno != ENOENT) {
2549 warn_report("not removing PID file on exit: cannot resolve PID "
2550 "file path: %s: %s", pid_file, strerror(errno));
2551 }
2552 return;
2553 }
2554
2555 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2556 .notifier = {
2557 .notify = qemu_unlink_pidfile,
2558 },
2559 .pid_file_realpath = pid_file_realpath,
2560 };
2561 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2562 }
2563 }
2564
2565 static void qemu_init_displays(void)
2566 {
2567 DisplayState *ds;
2568
2569 /* init local displays */
2570 ds = init_displaystate();
2571 qemu_display_init(ds, &dpy);
2572
2573 /* must be after terminal init, SDL library changes signal handlers */
2574 os_setup_signal_handling();
2575
2576 /* init remote displays */
2577 #ifdef CONFIG_VNC
2578 qemu_opts_foreach(qemu_find_opts("vnc"),
2579 vnc_init_func, NULL, &error_fatal);
2580 #endif
2581
2582 if (using_spice) {
2583 qemu_spice.display_init();
2584 }
2585 }
2586
2587 static void qemu_init_board(void)
2588 {
2589 /* process plugin before CPUs are created, but once -smp has been parsed */
2590 qemu_plugin_load_list(&plugin_list, &error_fatal);
2591
2592 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2593 machine_run_board_init(current_machine, mem_path, &error_fatal);
2594
2595 drive_check_orphaned();
2596
2597 realtime_init();
2598 }
2599
2600 static void qemu_create_cli_devices(void)
2601 {
2602 DeviceOption *opt;
2603
2604 soundhw_init();
2605
2606 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2607 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2608
2609 /* init USB devices */
2610 if (machine_usb(current_machine)) {
2611 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2612 exit(1);
2613 }
2614
2615 /* init generic devices */
2616 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2617 qemu_opts_foreach(qemu_find_opts("device"),
2618 device_init_func, NULL, &error_fatal);
2619 QTAILQ_FOREACH(opt, &device_opts, next) {
2620 DeviceState *dev;
2621 loc_push_restore(&opt->loc);
2622 /*
2623 * TODO Eventually we should call qmp_device_add() here to make sure it
2624 * behaves the same, but QMP still has to accept incorrectly typed
2625 * options until libvirt is fixed and we want to be strict on the CLI
2626 * from the start, so call qdev_device_add_from_qdict() directly for
2627 * now.
2628 */
2629 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2630 object_unref(OBJECT(dev));
2631 loc_pop(&opt->loc);
2632 }
2633 rom_reset_order_override();
2634 }
2635
2636 static void qemu_machine_creation_done(void)
2637 {
2638 MachineState *machine = MACHINE(qdev_get_machine());
2639
2640 /* Did we create any drives that we failed to create a device for? */
2641 drive_check_orphaned();
2642
2643 /* Don't warn about the default network setup that you get if
2644 * no command line -net or -netdev options are specified. There
2645 * are two cases that we would otherwise complain about:
2646 * (1) board doesn't support a NIC but the implicit "-net nic"
2647 * requested one
2648 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2649 * sets up a nic that isn't connected to anything.
2650 */
2651 if (!default_net && (!qtest_enabled() || has_defaults)) {
2652 net_check_clients();
2653 }
2654
2655 qdev_prop_check_globals();
2656
2657 qdev_machine_creation_done();
2658
2659 if (machine->cgs) {
2660 /*
2661 * Verify that Confidential Guest Support has actually been initialized
2662 */
2663 assert(machine->cgs->ready);
2664 }
2665
2666 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2667 exit(1);
2668 }
2669 if (!vga_interface_created && !default_vga &&
2670 vga_interface_type != VGA_NONE) {
2671 warn_report("A -vga option was passed but this machine "
2672 "type does not use that option; "
2673 "No VGA device has been created");
2674 }
2675 }
2676
2677 void qmp_x_exit_preconfig(Error **errp)
2678 {
2679 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2680 error_setg(errp, "The command is permitted only before machine initialization");
2681 return;
2682 }
2683
2684 qemu_init_board();
2685 qemu_create_cli_devices();
2686 qemu_machine_creation_done();
2687
2688 if (loadvm) {
2689 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2690 }
2691 if (replay_mode != REPLAY_MODE_NONE) {
2692 replay_vmstate_init();
2693 }
2694
2695 if (incoming) {
2696 Error *local_err = NULL;
2697 if (strcmp(incoming, "defer") != 0) {
2698 qmp_migrate_incoming(incoming, &local_err);
2699 if (local_err) {
2700 error_reportf_err(local_err, "-incoming %s: ", incoming);
2701 exit(1);
2702 }
2703 }
2704 } else if (autostart) {
2705 qmp_cont(NULL);
2706 }
2707 }
2708
2709 void qemu_init(int argc, char **argv)
2710 {
2711 QemuOpts *opts;
2712 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2713 QemuOptsList *olist;
2714 int optind;
2715 const char *optarg;
2716 MachineClass *machine_class;
2717 bool userconfig = true;
2718 FILE *vmstate_dump_file = NULL;
2719
2720 qemu_add_opts(&qemu_drive_opts);
2721 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2722 qemu_add_drive_opts(&qemu_common_drive_opts);
2723 qemu_add_drive_opts(&qemu_drive_opts);
2724 qemu_add_drive_opts(&bdrv_runtime_opts);
2725 qemu_add_opts(&qemu_chardev_opts);
2726 qemu_add_opts(&qemu_device_opts);
2727 qemu_add_opts(&qemu_netdev_opts);
2728 qemu_add_opts(&qemu_nic_opts);
2729 qemu_add_opts(&qemu_net_opts);
2730 qemu_add_opts(&qemu_rtc_opts);
2731 qemu_add_opts(&qemu_global_opts);
2732 qemu_add_opts(&qemu_mon_opts);
2733 qemu_add_opts(&qemu_trace_opts);
2734 qemu_plugin_add_opts();
2735 qemu_add_opts(&qemu_option_rom_opts);
2736 qemu_add_opts(&qemu_accel_opts);
2737 qemu_add_opts(&qemu_mem_opts);
2738 qemu_add_opts(&qemu_smp_opts);
2739 qemu_add_opts(&qemu_boot_opts);
2740 qemu_add_opts(&qemu_add_fd_opts);
2741 qemu_add_opts(&qemu_object_opts);
2742 qemu_add_opts(&qemu_tpmdev_opts);
2743 qemu_add_opts(&qemu_overcommit_opts);
2744 qemu_add_opts(&qemu_msg_opts);
2745 qemu_add_opts(&qemu_name_opts);
2746 qemu_add_opts(&qemu_numa_opts);
2747 qemu_add_opts(&qemu_icount_opts);
2748 qemu_add_opts(&qemu_semihosting_config_opts);
2749 qemu_add_opts(&qemu_fw_cfg_opts);
2750 qemu_add_opts(&qemu_action_opts);
2751 qemu_add_run_with_opts();
2752 module_call_init(MODULE_INIT_OPTS);
2753
2754 error_init(argv[0]);
2755 qemu_init_exec_dir(argv[0]);
2756
2757 qemu_init_arch_modules();
2758
2759 qemu_init_subsystems();
2760
2761 /* first pass of option parsing */
2762 optind = 1;
2763 while (optind < argc) {
2764 if (argv[optind][0] != '-') {
2765 /* disk image */
2766 optind++;
2767 } else {
2768 const QEMUOption *popt;
2769
2770 popt = lookup_opt(argc, argv, &optarg, &optind);
2771 switch (popt->index) {
2772 case QEMU_OPTION_nouserconfig:
2773 userconfig = false;
2774 break;
2775 }
2776 }
2777 }
2778
2779 machine_opts_dict = qdict_new();
2780 if (userconfig) {
2781 qemu_read_default_config_file(&error_fatal);
2782 }
2783
2784 /* second pass of option parsing */
2785 optind = 1;
2786 for(;;) {
2787 if (optind >= argc)
2788 break;
2789 if (argv[optind][0] != '-') {
2790 loc_set_cmdline(argv, optind, 1);
2791 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2792 } else {
2793 const QEMUOption *popt;
2794
2795 popt = lookup_opt(argc, argv, &optarg, &optind);
2796 if (!(popt->arch_mask & arch_type)) {
2797 error_report("Option not supported for this target");
2798 exit(1);
2799 }
2800 switch(popt->index) {
2801 case QEMU_OPTION_cpu:
2802 /* hw initialization will check this */
2803 cpu_option = optarg;
2804 break;
2805 case QEMU_OPTION_hda:
2806 case QEMU_OPTION_hdb:
2807 case QEMU_OPTION_hdc:
2808 case QEMU_OPTION_hdd:
2809 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2810 HD_OPTS);
2811 break;
2812 case QEMU_OPTION_blockdev:
2813 {
2814 Visitor *v;
2815 BlockdevOptionsQueueEntry *bdo;
2816
2817 v = qobject_input_visitor_new_str(optarg, "driver",
2818 &error_fatal);
2819
2820 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2821 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2822 &error_fatal);
2823 visit_free(v);
2824 loc_save(&bdo->loc);
2825 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2826 break;
2827 }
2828 case QEMU_OPTION_drive:
2829 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2830 optarg, false);
2831 if (opts == NULL) {
2832 exit(1);
2833 }
2834 break;
2835 case QEMU_OPTION_set:
2836 qemu_set_option(optarg, &error_fatal);
2837 break;
2838 case QEMU_OPTION_global:
2839 if (qemu_global_option(optarg) != 0)
2840 exit(1);
2841 break;
2842 case QEMU_OPTION_mtdblock:
2843 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2844 break;
2845 case QEMU_OPTION_sd:
2846 drive_add(IF_SD, -1, optarg, SD_OPTS);
2847 break;
2848 case QEMU_OPTION_pflash:
2849 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2850 break;
2851 case QEMU_OPTION_snapshot:
2852 snapshot = 1;
2853 replay_add_blocker("-snapshot");
2854 break;
2855 case QEMU_OPTION_numa:
2856 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2857 optarg, true);
2858 if (!opts) {
2859 exit(1);
2860 }
2861 break;
2862 case QEMU_OPTION_display:
2863 parse_display(optarg);
2864 break;
2865 case QEMU_OPTION_nographic:
2866 qdict_put_str(machine_opts_dict, "graphics", "off");
2867 nographic = true;
2868 dpy.type = DISPLAY_TYPE_NONE;
2869 break;
2870 case QEMU_OPTION_portrait:
2871 graphic_rotate = 90;
2872 break;
2873 case QEMU_OPTION_rotate:
2874 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2875 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2876 graphic_rotate != 180 && graphic_rotate != 270) {
2877 error_report("only 90, 180, 270 deg rotation is available");
2878 exit(1);
2879 }
2880 break;
2881 case QEMU_OPTION_kernel:
2882 qdict_put_str(machine_opts_dict, "kernel", optarg);
2883 break;
2884 case QEMU_OPTION_initrd:
2885 qdict_put_str(machine_opts_dict, "initrd", optarg);
2886 break;
2887 case QEMU_OPTION_append:
2888 qdict_put_str(machine_opts_dict, "append", optarg);
2889 break;
2890 case QEMU_OPTION_dtb:
2891 qdict_put_str(machine_opts_dict, "dtb", optarg);
2892 break;
2893 case QEMU_OPTION_cdrom:
2894 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2895 break;
2896 case QEMU_OPTION_boot:
2897 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2898 break;
2899 case QEMU_OPTION_fda:
2900 case QEMU_OPTION_fdb:
2901 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2902 optarg, FD_OPTS);
2903 break;
2904 case QEMU_OPTION_no_fd_bootchk:
2905 fd_bootchk = 0;
2906 break;
2907 case QEMU_OPTION_netdev:
2908 default_net = 0;
2909 if (netdev_is_modern(optarg)) {
2910 netdev_parse_modern(optarg);
2911 } else {
2912 net_client_parse(qemu_find_opts("netdev"), optarg);
2913 }
2914 break;
2915 case QEMU_OPTION_nic:
2916 default_net = 0;
2917 net_client_parse(qemu_find_opts("nic"), optarg);
2918 break;
2919 case QEMU_OPTION_net:
2920 default_net = 0;
2921 net_client_parse(qemu_find_opts("net"), optarg);
2922 break;
2923 #ifdef CONFIG_LIBISCSI
2924 case QEMU_OPTION_iscsi:
2925 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2926 optarg, false);
2927 if (!opts) {
2928 exit(1);
2929 }
2930 break;
2931 #endif
2932 case QEMU_OPTION_audiodev:
2933 default_audio = 0;
2934 audio_parse_option(optarg);
2935 break;
2936 case QEMU_OPTION_audio: {
2937 bool help;
2938 char *model = NULL;
2939 Audiodev *dev = NULL;
2940 Visitor *v;
2941 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2942 default_audio = 0;
2943 if (help || (qdict_haskey(dict, "driver") &&
2944 is_help_option(qdict_get_str(dict, "driver")))) {
2945 audio_help();
2946 exit(EXIT_SUCCESS);
2947 }
2948 if (!qdict_haskey(dict, "id")) {
2949 qdict_put_str(dict, "id", "audiodev0");
2950 }
2951 if (qdict_haskey(dict, "model")) {
2952 model = g_strdup(qdict_get_str(dict, "model"));
2953 qdict_del(dict, "model");
2954 if (is_help_option(model)) {
2955 show_valid_soundhw();
2956 exit(0);
2957 }
2958 }
2959 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2960 qobject_unref(dict);
2961 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2962 visit_free(v);
2963 if (model) {
2964 audio_define(dev);
2965 select_soundhw(model, dev->id);
2966 g_free(model);
2967 } else {
2968 audio_define_default(dev, &error_fatal);
2969 }
2970 break;
2971 }
2972 case QEMU_OPTION_h:
2973 help(0);
2974 break;
2975 case QEMU_OPTION_version:
2976 version();
2977 exit(0);
2978 break;
2979 case QEMU_OPTION_m:
2980 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
2981 if (opts == NULL) {
2982 exit(1);
2983 }
2984 break;
2985 #ifdef CONFIG_TPM
2986 case QEMU_OPTION_tpmdev:
2987 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
2988 exit(1);
2989 }
2990 break;
2991 #endif
2992 case QEMU_OPTION_mempath:
2993 mem_path = optarg;
2994 break;
2995 case QEMU_OPTION_mem_prealloc:
2996 mem_prealloc = 1;
2997 break;
2998 case QEMU_OPTION_d:
2999 log_mask = optarg;
3000 break;
3001 case QEMU_OPTION_D:
3002 log_file = optarg;
3003 break;
3004 case QEMU_OPTION_DFILTER:
3005 qemu_set_dfilter_ranges(optarg, &error_fatal);
3006 break;
3007 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3008 case QEMU_OPTION_perfmap:
3009 perf_enable_perfmap();
3010 break;
3011 case QEMU_OPTION_jitdump:
3012 perf_enable_jitdump();
3013 break;
3014 #endif
3015 case QEMU_OPTION_seed:
3016 qemu_guest_random_seed_main(optarg, &error_fatal);
3017 break;
3018 case QEMU_OPTION_s:
3019 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3020 break;
3021 case QEMU_OPTION_gdb:
3022 add_device_config(DEV_GDB, optarg);
3023 break;
3024 case QEMU_OPTION_L:
3025 if (is_help_option(optarg)) {
3026 list_data_dirs = true;
3027 } else {
3028 qemu_add_data_dir(g_strdup(optarg));
3029 }
3030 break;
3031 case QEMU_OPTION_bios:
3032 qdict_put_str(machine_opts_dict, "firmware", optarg);
3033 break;
3034 case QEMU_OPTION_singlestep:
3035 opt_one_insn_per_tb = true;
3036 break;
3037 case QEMU_OPTION_S:
3038 autostart = 0;
3039 break;
3040 case QEMU_OPTION_k:
3041 keyboard_layout = optarg;
3042 break;
3043 case QEMU_OPTION_vga:
3044 vga_model = optarg;
3045 default_vga = 0;
3046 break;
3047 case QEMU_OPTION_g:
3048 {
3049 const char *p;
3050 int w, h, depth;
3051 p = optarg;
3052 w = strtol(p, (char **)&p, 10);
3053 if (w <= 0) {
3054 graphic_error:
3055 error_report("invalid resolution or depth");
3056 exit(1);
3057 }
3058 if (*p != 'x')
3059 goto graphic_error;
3060 p++;
3061 h = strtol(p, (char **)&p, 10);
3062 if (h <= 0)
3063 goto graphic_error;
3064 if (*p == 'x') {
3065 p++;
3066 depth = strtol(p, (char **)&p, 10);
3067 if (depth != 1 && depth != 2 && depth != 4 &&
3068 depth != 8 && depth != 15 && depth != 16 &&
3069 depth != 24 && depth != 32)
3070 goto graphic_error;
3071 } else if (*p == '\0') {
3072 depth = graphic_depth;
3073 } else {
3074 goto graphic_error;
3075 }
3076
3077 graphic_width = w;
3078 graphic_height = h;
3079 graphic_depth = depth;
3080 }
3081 break;
3082 case QEMU_OPTION_echr:
3083 {
3084 char *r;
3085 term_escape_char = strtol(optarg, &r, 0);
3086 if (r == optarg)
3087 printf("Bad argument to echr\n");
3088 break;
3089 }
3090 case QEMU_OPTION_monitor:
3091 default_monitor = 0;
3092 if (strncmp(optarg, "none", 4)) {
3093 monitor_parse(optarg, "readline", false);
3094 }
3095 break;
3096 case QEMU_OPTION_qmp:
3097 monitor_parse(optarg, "control", false);
3098 default_monitor = 0;
3099 break;
3100 case QEMU_OPTION_qmp_pretty:
3101 monitor_parse(optarg, "control", true);
3102 default_monitor = 0;
3103 break;
3104 case QEMU_OPTION_mon:
3105 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3106 true);
3107 if (!opts) {
3108 exit(1);
3109 }
3110 default_monitor = 0;
3111 break;
3112 case QEMU_OPTION_chardev:
3113 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3114 optarg, true);
3115 if (!opts) {
3116 exit(1);
3117 }
3118 break;
3119 case QEMU_OPTION_fsdev:
3120 olist = qemu_find_opts("fsdev");
3121 if (!olist) {
3122 error_report("fsdev support is disabled");
3123 exit(1);
3124 }
3125 opts = qemu_opts_parse_noisily(olist, optarg, true);
3126 if (!opts) {
3127 exit(1);
3128 }
3129 break;
3130 case QEMU_OPTION_virtfs: {
3131 QemuOpts *fsdev;
3132 QemuOpts *device;
3133 const char *writeout, *sock_fd, *socket, *path, *security_model,
3134 *multidevs;
3135
3136 olist = qemu_find_opts("virtfs");
3137 if (!olist) {
3138 error_report("virtfs support is disabled");
3139 exit(1);
3140 }
3141 opts = qemu_opts_parse_noisily(olist, optarg, true);
3142 if (!opts) {
3143 exit(1);
3144 }
3145
3146 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3147 qemu_opt_get(opts, "mount_tag") == NULL) {
3148 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3149 exit(1);
3150 }
3151 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3152 qemu_opts_id(opts) ?:
3153 qemu_opt_get(opts, "mount_tag"),
3154 1, NULL);
3155 if (!fsdev) {
3156 error_report("duplicate or invalid fsdev id: %s",
3157 qemu_opt_get(opts, "mount_tag"));
3158 exit(1);
3159 }
3160
3161 writeout = qemu_opt_get(opts, "writeout");
3162 if (writeout) {
3163 #ifdef CONFIG_SYNC_FILE_RANGE
3164 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3165 #else
3166 error_report("writeout=immediate not supported "
3167 "on this platform");
3168 exit(1);
3169 #endif
3170 }
3171 qemu_opt_set(fsdev, "fsdriver",
3172 qemu_opt_get(opts, "fsdriver"), &error_abort);
3173 path = qemu_opt_get(opts, "path");
3174 if (path) {
3175 qemu_opt_set(fsdev, "path", path, &error_abort);
3176 }
3177 security_model = qemu_opt_get(opts, "security_model");
3178 if (security_model) {
3179 qemu_opt_set(fsdev, "security_model", security_model,
3180 &error_abort);
3181 }
3182 socket = qemu_opt_get(opts, "socket");
3183 if (socket) {
3184 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3185 }
3186 sock_fd = qemu_opt_get(opts, "sock_fd");
3187 if (sock_fd) {
3188 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3189 }
3190
3191 qemu_opt_set_bool(fsdev, "readonly",
3192 qemu_opt_get_bool(opts, "readonly", 0),
3193 &error_abort);
3194 multidevs = qemu_opt_get(opts, "multidevs");
3195 if (multidevs) {
3196 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3197 }
3198 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3199 &error_abort);
3200 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3201 qemu_opt_set(device, "fsdev",
3202 qemu_opts_id(fsdev), &error_abort);
3203 qemu_opt_set(device, "mount_tag",
3204 qemu_opt_get(opts, "mount_tag"), &error_abort);
3205 break;
3206 }
3207 case QEMU_OPTION_serial:
3208 add_device_config(DEV_SERIAL, optarg);
3209 default_serial = 0;
3210 if (strncmp(optarg, "mon:", 4) == 0) {
3211 default_monitor = 0;
3212 }
3213 break;
3214 case QEMU_OPTION_action:
3215 olist = qemu_find_opts("action");
3216 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3217 exit(1);
3218 }
3219 break;
3220 case QEMU_OPTION_watchdog_action: {
3221 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3222 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3223 break;
3224 }
3225 case QEMU_OPTION_parallel:
3226 add_device_config(DEV_PARALLEL, optarg);
3227 default_parallel = 0;
3228 if (strncmp(optarg, "mon:", 4) == 0) {
3229 default_monitor = 0;
3230 }
3231 break;
3232 case QEMU_OPTION_debugcon:
3233 add_device_config(DEV_DEBUGCON, optarg);
3234 break;
3235 case QEMU_OPTION_loadvm:
3236 loadvm = optarg;
3237 break;
3238 case QEMU_OPTION_full_screen:
3239 dpy.has_full_screen = true;
3240 dpy.full_screen = true;
3241 break;
3242 case QEMU_OPTION_pidfile:
3243 pid_file = optarg;
3244 break;
3245 case QEMU_OPTION_win2k_hack:
3246 win2k_install_hack = 1;
3247 break;
3248 case QEMU_OPTION_acpitable:
3249 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3250 optarg, true);
3251 if (!opts) {
3252 exit(1);
3253 }
3254 acpi_table_add(opts, &error_fatal);
3255 break;
3256 case QEMU_OPTION_smbios:
3257 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3258 optarg, false);
3259 if (!opts) {
3260 exit(1);
3261 }
3262 smbios_entry_add(opts, &error_fatal);
3263 break;
3264 case QEMU_OPTION_fwcfg:
3265 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3266 optarg, true);
3267 if (opts == NULL) {
3268 exit(1);
3269 }
3270 break;
3271 case QEMU_OPTION_preconfig:
3272 preconfig_requested = true;
3273 break;
3274 case QEMU_OPTION_enable_kvm:
3275 qdict_put_str(machine_opts_dict, "accel", "kvm");
3276 break;
3277 case QEMU_OPTION_M:
3278 case QEMU_OPTION_machine:
3279 {
3280 bool help;
3281
3282 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3283 if (help) {
3284 machine_help_func(machine_opts_dict);
3285 exit(EXIT_SUCCESS);
3286 }
3287 break;
3288 }
3289 case QEMU_OPTION_accel:
3290 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3291 optarg, true);
3292 optarg = qemu_opt_get(accel_opts, "accel");
3293 if (!optarg || is_help_option(optarg)) {
3294 printf("Accelerators supported in QEMU binary:\n");
3295 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3296 false);
3297 for (el = accel_list; el; el = el->next) {
3298 gchar *typename = g_strdup(object_class_get_name(
3299 OBJECT_CLASS(el->data)));
3300 /* omit qtest which is used for tests only */
3301 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3302 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3303 gchar **optname = g_strsplit(typename,
3304 ACCEL_CLASS_SUFFIX, 0);
3305 printf("%s\n", optname[0]);
3306 g_strfreev(optname);
3307 }
3308 g_free(typename);
3309 }
3310 g_slist_free(accel_list);
3311 exit(0);
3312 }
3313 break;
3314 case QEMU_OPTION_usb:
3315 qdict_put_str(machine_opts_dict, "usb", "on");
3316 break;
3317 case QEMU_OPTION_usbdevice:
3318 qdict_put_str(machine_opts_dict, "usb", "on");
3319 add_device_config(DEV_USB, optarg);
3320 break;
3321 case QEMU_OPTION_device:
3322 if (optarg[0] == '{') {
3323 QObject *obj = qobject_from_json(optarg, &error_fatal);
3324 DeviceOption *opt = g_new0(DeviceOption, 1);
3325 opt->opts = qobject_to(QDict, obj);
3326 loc_save(&opt->loc);
3327 assert(opt->opts != NULL);
3328 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3329 } else {
3330 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3331 optarg, true)) {
3332 exit(1);
3333 }
3334 }
3335 break;
3336 case QEMU_OPTION_smp:
3337 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3338 "smp", optarg);
3339 break;
3340 case QEMU_OPTION_vnc:
3341 vnc_parse(optarg);
3342 break;
3343 case QEMU_OPTION_no_acpi:
3344 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3345 qdict_put_str(machine_opts_dict, "acpi", "off");
3346 break;
3347 case QEMU_OPTION_no_hpet:
3348 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3349 qdict_put_str(machine_opts_dict, "hpet", "off");
3350 break;
3351 case QEMU_OPTION_no_reboot:
3352 olist = qemu_find_opts("action");
3353 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3354 break;
3355 case QEMU_OPTION_no_shutdown:
3356 olist = qemu_find_opts("action");
3357 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3358 break;
3359 case QEMU_OPTION_uuid:
3360 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3361 error_report("failed to parse UUID string: wrong format");
3362 exit(1);
3363 }
3364 qemu_uuid_set = true;
3365 break;
3366 case QEMU_OPTION_option_rom:
3367 if (nb_option_roms >= MAX_OPTION_ROMS) {
3368 error_report("too many option ROMs");
3369 exit(1);
3370 }
3371 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3372 optarg, true);
3373 if (!opts) {
3374 exit(1);
3375 }
3376 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3377 option_rom[nb_option_roms].bootindex =
3378 qemu_opt_get_number(opts, "bootindex", -1);
3379 if (!option_rom[nb_option_roms].name) {
3380 error_report("Option ROM file is not specified");
3381 exit(1);
3382 }
3383 nb_option_roms++;
3384 break;
3385 case QEMU_OPTION_semihosting:
3386 qemu_semihosting_enable();
3387 break;
3388 case QEMU_OPTION_semihosting_config:
3389 if (qemu_semihosting_config_options(optarg) != 0) {
3390 exit(1);
3391 }
3392 break;
3393 case QEMU_OPTION_name:
3394 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3395 optarg, true);
3396 if (!opts) {
3397 exit(1);
3398 }
3399 /* Capture guest name if -msg guest-name is used later */
3400 error_guest_name = qemu_opt_get(opts, "guest");
3401 break;
3402 case QEMU_OPTION_prom_env:
3403 if (nb_prom_envs >= MAX_PROM_ENVS) {
3404 error_report("too many prom variables");
3405 exit(1);
3406 }
3407 prom_envs[nb_prom_envs] = optarg;
3408 nb_prom_envs++;
3409 break;
3410 case QEMU_OPTION_old_param:
3411 old_param = 1;
3412 break;
3413 case QEMU_OPTION_rtc:
3414 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3415 false);
3416 if (!opts) {
3417 exit(1);
3418 }
3419 break;
3420 case QEMU_OPTION_icount:
3421 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3422 optarg, true);
3423 if (!icount_opts) {
3424 exit(1);
3425 }
3426 break;
3427 case QEMU_OPTION_incoming:
3428 if (!incoming) {
3429 runstate_set(RUN_STATE_INMIGRATE);
3430 }
3431 incoming = optarg;
3432 break;
3433 case QEMU_OPTION_only_migratable:
3434 only_migratable = 1;
3435 break;
3436 case QEMU_OPTION_nodefaults:
3437 has_defaults = 0;
3438 break;
3439 case QEMU_OPTION_xen_domid:
3440 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3441 error_report("Option not supported for this target");
3442 exit(1);
3443 }
3444 xen_domid = atoi(optarg);
3445 break;
3446 case QEMU_OPTION_xen_attach:
3447 if (!(accel_find("xen"))) {
3448 error_report("Option not supported for this target");
3449 exit(1);
3450 }
3451 xen_mode = XEN_ATTACH;
3452 break;
3453 case QEMU_OPTION_xen_domid_restrict:
3454 if (!(accel_find("xen"))) {
3455 error_report("Option not supported for this target");
3456 exit(1);
3457 }
3458 xen_domid_restrict = true;
3459 break;
3460 case QEMU_OPTION_trace:
3461 trace_opt_parse(optarg);
3462 break;
3463 case QEMU_OPTION_plugin:
3464 qemu_plugin_opt_parse(optarg, &plugin_list);
3465 break;
3466 case QEMU_OPTION_readconfig:
3467 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3468 break;
3469 #ifdef CONFIG_SPICE
3470 case QEMU_OPTION_spice:
3471 olist = qemu_find_opts_err("spice", NULL);
3472 if (!olist) {
3473 error_report("spice support is disabled");
3474 exit(1);
3475 }
3476 opts = qemu_opts_parse_noisily(olist, optarg, false);
3477 if (!opts) {
3478 exit(1);
3479 }
3480 display_remote++;
3481 break;
3482 #endif
3483 case QEMU_OPTION_qtest:
3484 qtest_chrdev = optarg;
3485 break;
3486 case QEMU_OPTION_qtest_log:
3487 qtest_log = optarg;
3488 break;
3489 case QEMU_OPTION_sandbox:
3490 olist = qemu_find_opts("sandbox");
3491 if (!olist) {
3492 #ifndef CONFIG_SECCOMP
3493 error_report("-sandbox support is not enabled "
3494 "in this QEMU binary");
3495 #endif
3496 exit(1);
3497 }
3498
3499 opts = qemu_opts_parse_noisily(olist, optarg, true);
3500 if (!opts) {
3501 exit(1);
3502 }
3503 break;
3504 case QEMU_OPTION_add_fd:
3505 #ifndef _WIN32
3506 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3507 optarg, false);
3508 if (!opts) {
3509 exit(1);
3510 }
3511 #else
3512 error_report("File descriptor passing is disabled on this "
3513 "platform");
3514 exit(1);
3515 #endif
3516 break;
3517 case QEMU_OPTION_object:
3518 object_option_parse(optarg);
3519 break;
3520 case QEMU_OPTION_overcommit:
3521 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3522 optarg, false);
3523 if (!opts) {
3524 exit(1);
3525 }
3526 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3527 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3528 break;
3529 case QEMU_OPTION_compat:
3530 {
3531 CompatPolicy *opts_policy;
3532 Visitor *v;
3533
3534 v = qobject_input_visitor_new_str(optarg, NULL,
3535 &error_fatal);
3536
3537 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3538 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3539
3540 qapi_free_CompatPolicy(opts_policy);
3541 visit_free(v);
3542 break;
3543 }
3544 case QEMU_OPTION_msg:
3545 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3546 false);
3547 if (!opts) {
3548 exit(1);
3549 }
3550 configure_msg(opts);
3551 break;
3552 case QEMU_OPTION_dump_vmstate:
3553 if (vmstate_dump_file) {
3554 error_report("only one '-dump-vmstate' "
3555 "option may be given");
3556 exit(1);
3557 }
3558 vmstate_dump_file = fopen(optarg, "w");
3559 if (vmstate_dump_file == NULL) {
3560 error_report("open %s: %s", optarg, strerror(errno));
3561 exit(1);
3562 }
3563 break;
3564 case QEMU_OPTION_enable_sync_profile:
3565 qsp_enable();
3566 break;
3567 case QEMU_OPTION_nouserconfig:
3568 /* Nothing to be parsed here. Especially, do not error out below. */
3569 break;
3570 #if defined(CONFIG_POSIX)
3571 case QEMU_OPTION_runas:
3572 if (!os_set_runas(optarg)) {
3573 error_report("User \"%s\" doesn't exist"
3574 " (and is not <uid>:<gid>)",
3575 optarg);
3576 exit(1);
3577 }
3578 break;
3579 case QEMU_OPTION_chroot:
3580 warn_report("option is deprecated,"
3581 " use '-run-with chroot=...' instead");
3582 os_set_chroot(optarg);
3583 break;
3584 case QEMU_OPTION_daemonize:
3585 os_set_daemonize(true);
3586 break;
3587 #if defined(CONFIG_LINUX)
3588 /* deprecated */
3589 case QEMU_OPTION_asyncteardown:
3590 init_async_teardown();
3591 break;
3592 #endif
3593 case QEMU_OPTION_run_with: {
3594 const char *str;
3595 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3596 optarg, false);
3597 if (!opts) {
3598 exit(1);
3599 }
3600 #if defined(CONFIG_LINUX)
3601 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3602 init_async_teardown();
3603 }
3604 #endif
3605 str = qemu_opt_get(opts, "chroot");
3606 if (str) {
3607 os_set_chroot(str);
3608 }
3609 break;
3610 }
3611 #endif /* CONFIG_POSIX */
3612
3613 default:
3614 error_report("Option not supported in this build");
3615 exit(1);
3616 }
3617 }
3618 }
3619 /*
3620 * Clear error location left behind by the loop.
3621 * Best done right after the loop. Do not insert code here!
3622 */
3623 loc_set_none();
3624
3625 qemu_validate_options(machine_opts_dict);
3626 qemu_process_sugar_options();
3627
3628 /*
3629 * These options affect everything else and should be processed
3630 * before daemonizing.
3631 */
3632 qemu_process_early_options();
3633
3634 qemu_process_help_options();
3635 qemu_maybe_daemonize(pid_file);
3636
3637 /*
3638 * The trace backend must be initialized after daemonizing.
3639 * trace_init_backends() will call st_init(), which will create the
3640 * trace thread in the parent, and also register st_flush_trace_buffer()
3641 * in atexit(). This function will force the parent to wait for the
3642 * writeout thread to finish, which will not occur, and the parent
3643 * process will be left in the host.
3644 */
3645 if (!trace_init_backends()) {
3646 exit(1);
3647 }
3648 trace_init_file();
3649
3650 qemu_init_main_loop(&error_fatal);
3651 cpu_timers_init();
3652
3653 user_register_global_props();
3654 replay_configure(icount_opts);
3655
3656 configure_rtc(qemu_find_opts_singleton("rtc"));
3657
3658 /* Transfer QemuOpts options into machine options */
3659 parse_memory_options();
3660
3661 qemu_create_machine(machine_opts_dict);
3662
3663 suspend_mux_open();
3664
3665 qemu_disable_default_devices();
3666 qemu_create_default_devices();
3667 qemu_create_early_backends();
3668
3669 qemu_apply_legacy_machine_options(machine_opts_dict);
3670 qemu_apply_machine_options(machine_opts_dict);
3671 qobject_unref(machine_opts_dict);
3672 phase_advance(PHASE_MACHINE_CREATED);
3673
3674 /*
3675 * Note: uses machine properties such as kernel-irqchip, must run
3676 * after qemu_apply_machine_options.
3677 */
3678 configure_accelerators(argv[0]);
3679 phase_advance(PHASE_ACCEL_CREATED);
3680
3681 /*
3682 * Beware, QOM objects created before this point miss global and
3683 * compat properties.
3684 *
3685 * Global properties get set up by qdev_prop_register_global(),
3686 * called from user_register_global_props(), and certain option
3687 * desugaring. Also in CPU feature desugaring (buried in
3688 * parse_cpu_option()), which happens below this point, but may
3689 * only target the CPU type, which can only be created after
3690 * parse_cpu_option() returned the type.
3691 *
3692 * Machine compat properties: object_set_machine_compat_props().
3693 * Accelerator compat props: object_set_accelerator_compat_props(),
3694 * called from do_configure_accelerator().
3695 */
3696
3697 machine_class = MACHINE_GET_CLASS(current_machine);
3698 if (!qtest_enabled() && machine_class->deprecation_reason) {
3699 warn_report("Machine type '%s' is deprecated: %s",
3700 machine_class->name, machine_class->deprecation_reason);
3701 }
3702
3703 /*
3704 * Create backends before creating migration objects, so that it can
3705 * check against compatibilities on the backend memories (e.g. postcopy
3706 * over memory-backend-file objects).
3707 */
3708 qemu_create_late_backends();
3709
3710 /*
3711 * Note: creates a QOM object, must run only after global and
3712 * compat properties have been set up.
3713 */
3714 migration_object_init();
3715
3716 /* parse features once if machine provides default cpu_type */
3717 current_machine->cpu_type = machine_class->default_cpu_type;
3718 if (cpu_option) {
3719 current_machine->cpu_type = parse_cpu_option(cpu_option);
3720 }
3721 /* NB: for machine none cpu_type could STILL be NULL here! */
3722
3723 qemu_resolve_machine_memdev();
3724 parse_numa_opts(current_machine);
3725
3726 if (vmstate_dump_file) {
3727 /* dump and exit */
3728 module_load_qom_all();
3729 dump_vmstate_json_to_file(vmstate_dump_file);
3730 exit(0);
3731 }
3732
3733 if (!preconfig_requested) {
3734 qmp_x_exit_preconfig(&error_fatal);
3735 }
3736 qemu_init_displays();
3737 accel_setup_post(current_machine);
3738 os_setup_post();
3739 resume_mux_open();
3740 }
armbru's QEMU hackery