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hw/net/cadence_gem.c: spelling fixes: Octects
[qemu/armbru.git] / system / vl.c
blob5af7ced2a16a399af5e7623c0f9bbc14d6c49d95
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu/help-texts.h"
27 #include "qemu/datadir.h"
28 #include "qemu/units.h"
29 #include "exec/cpu-common.h"
30 #include "exec/page-vary.h"
31 #include "hw/qdev-properties.h"
32 #include "qapi/compat-policy.h"
33 #include "qapi/error.h"
34 #include "qapi/qmp/qdict.h"
35 #include "qapi/qmp/qstring.h"
36 #include "qapi/qmp/qjson.h"
37 #include "qemu-version.h"
38 #include "qemu/cutils.h"
39 #include "qemu/help_option.h"
40 #include "qemu/hw-version.h"
41 #include "qemu/uuid.h"
42 #include "sysemu/reset.h"
43 #include "sysemu/runstate.h"
44 #include "sysemu/runstate-action.h"
45 #include "sysemu/seccomp.h"
46 #include "sysemu/tcg.h"
47 #include "sysemu/xen.h"
48
49 #include "qemu/error-report.h"
50 #include "qemu/sockets.h"
51 #include "qemu/accel.h"
52 #include "qemu/async-teardown.h"
53 #include "hw/usb.h"
54 #include "hw/isa/isa.h"
55 #include "hw/scsi/scsi.h"
56 #include "hw/display/vga.h"
57 #include "hw/firmware/smbios.h"
58 #include "hw/acpi/acpi.h"
59 #include "hw/xen/xen.h"
60 #include "hw/loader.h"
61 #include "monitor/qdev.h"
62 #include "net/net.h"
63 #include "net/slirp.h"
64 #include "monitor/monitor.h"
65 #include "ui/console.h"
66 #include "ui/input.h"
67 #include "sysemu/sysemu.h"
68 #include "sysemu/numa.h"
69 #include "sysemu/hostmem.h"
70 #include "exec/gdbstub.h"
71 #include "qemu/timer.h"
72 #include "chardev/char.h"
73 #include "qemu/bitmap.h"
74 #include "qemu/log.h"
75 #include "sysemu/blockdev.h"
76 #include "hw/block/block.h"
77 #include "hw/i386/x86.h"
78 #include "hw/i386/pc.h"
79 #include "migration/misc.h"
80 #include "migration/snapshot.h"
81 #include "sysemu/tpm.h"
82 #include "sysemu/dma.h"
83 #include "hw/audio/soundhw.h"
84 #include "audio/audio.h"
85 #include "sysemu/cpus.h"
86 #include "sysemu/cpu-timers.h"
87 #include "migration/colo.h"
88 #include "migration/postcopy-ram.h"
89 #include "sysemu/kvm.h"
90 #include "qapi/qobject-input-visitor.h"
91 #include "qemu/option.h"
92 #include "qemu/config-file.h"
93 #include "qemu/main-loop.h"
94 #ifdef CONFIG_VIRTFS
95 #include "fsdev/qemu-fsdev.h"
96 #endif
97 #include "sysemu/qtest.h"
98 #ifdef CONFIG_TCG
99 #include "accel/tcg/perf.h"
100 #endif
101
102 #include "disas/disas.h"
103
104 #include "trace.h"
105 #include "trace/control.h"
106 #include "qemu/plugin.h"
107 #include "qemu/queue.h"
108 #include "sysemu/arch_init.h"
109 #include "exec/confidential-guest-support.h"
110
111 #include "ui/qemu-spice.h"
112 #include "qapi/string-input-visitor.h"
113 #include "qapi/opts-visitor.h"
114 #include "qapi/clone-visitor.h"
115 #include "qom/object_interfaces.h"
116 #include "semihosting/semihost.h"
117 #include "crypto/init.h"
118 #include "sysemu/replay.h"
119 #include "qapi/qapi-events-run-state.h"
120 #include "qapi/qapi-types-audio.h"
121 #include "qapi/qapi-visit-audio.h"
122 #include "qapi/qapi-visit-block-core.h"
123 #include "qapi/qapi-visit-compat.h"
124 #include "qapi/qapi-visit-machine.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-migration.h"
128 #include "qapi/qapi-commands-misc.h"
129 #include "qapi/qapi-visit-qom.h"
130 #include "qapi/qapi-commands-ui.h"
131 #include "block/qdict.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134 #include "qemu/guest-random.h"
135 #include "qemu/keyval.h"
136
137 #define MAX_VIRTIO_CONSOLES 1
138
139 typedef struct BlockdevOptionsQueueEntry {
140 BlockdevOptions *bdo;
141 Location loc;
142 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
143 } BlockdevOptionsQueueEntry;
144
145 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
146
147 typedef struct ObjectOption {
148 ObjectOptions *opts;
149 QTAILQ_ENTRY(ObjectOption) next;
150 } ObjectOption;
151
152 typedef struct DeviceOption {
153 QDict *opts;
154 Location loc;
155 QTAILQ_ENTRY(DeviceOption) next;
156 } DeviceOption;
157
158 static const char *cpu_option;
159 static const char *mem_path;
160 static const char *incoming;
161 static const char *loadvm;
162 static const char *accelerators;
163 static bool have_custom_ram_size;
164 static const char *ram_memdev_id;
165 static QDict *machine_opts_dict;
166 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
167 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
168 static int display_remote;
169 static int snapshot;
170 static bool preconfig_requested;
171 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
172 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
173 static bool nographic = false;
174 static int mem_prealloc; /* force preallocation of physical target memory */
175 static const char *vga_model = NULL;
176 static DisplayOptions dpy;
177 static int num_serial_hds;
178 static Chardev **serial_hds;
179 static const char *log_mask;
180 static const char *log_file;
181 static bool list_data_dirs;
182 static const char *qtest_chrdev;
183 static const char *qtest_log;
184 static bool opt_one_insn_per_tb;
185
186 static int has_defaults = 1;
187 static int default_audio = 1;
188 static int default_serial = 1;
189 static int default_parallel = 1;
190 static int default_monitor = 1;
191 static int default_floppy = 1;
192 static int default_cdrom = 1;
193 static int default_sdcard = 1;
194 static int default_vga = 1;
195 static int default_net = 1;
196
197 static const struct {
198 const char *driver;
199 int *flag;
200 } default_list[] = {
201 { .driver = "isa-serial", .flag = &default_serial },
202 { .driver = "isa-parallel", .flag = &default_parallel },
203 { .driver = "isa-fdc", .flag = &default_floppy },
204 { .driver = "floppy", .flag = &default_floppy },
205 { .driver = "ide-cd", .flag = &default_cdrom },
206 { .driver = "ide-hd", .flag = &default_cdrom },
207 { .driver = "scsi-cd", .flag = &default_cdrom },
208 { .driver = "scsi-hd", .flag = &default_cdrom },
209 { .driver = "VGA", .flag = &default_vga },
210 { .driver = "isa-vga", .flag = &default_vga },
211 { .driver = "cirrus-vga", .flag = &default_vga },
212 { .driver = "isa-cirrus-vga", .flag = &default_vga },
213 { .driver = "vmware-svga", .flag = &default_vga },
214 { .driver = "qxl-vga", .flag = &default_vga },
215 { .driver = "virtio-vga", .flag = &default_vga },
216 { .driver = "ati-vga", .flag = &default_vga },
217 { .driver = "vhost-user-vga", .flag = &default_vga },
218 { .driver = "virtio-vga-gl", .flag = &default_vga },
219 { .driver = "virtio-vga-rutabaga", .flag = &default_vga },
220 };
221
222 static QemuOptsList qemu_rtc_opts = {
223 .name = "rtc",
224 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
225 .merge_lists = true,
226 .desc = {
227 {
228 .name = "base",
229 .type = QEMU_OPT_STRING,
230 },{
231 .name = "clock",
232 .type = QEMU_OPT_STRING,
233 },{
234 .name = "driftfix",
235 .type = QEMU_OPT_STRING,
236 },
237 { /* end of list */ }
238 },
239 };
240
241 static QemuOptsList qemu_option_rom_opts = {
242 .name = "option-rom",
243 .implied_opt_name = "romfile",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
245 .desc = {
246 {
247 .name = "bootindex",
248 .type = QEMU_OPT_NUMBER,
249 }, {
250 .name = "romfile",
251 .type = QEMU_OPT_STRING,
252 },
253 { /* end of list */ }
254 },
255 };
256
257 static QemuOptsList qemu_accel_opts = {
258 .name = "accel",
259 .implied_opt_name = "accel",
260 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
261 .desc = {
262 /*
263 * no elements => accept any
264 * sanity checking will happen later
265 * when setting accelerator properties
266 */
267 { }
268 },
269 };
270
271 static QemuOptsList qemu_boot_opts = {
272 .name = "boot-opts",
273 .implied_opt_name = "order",
274 .merge_lists = true,
275 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
276 .desc = {
277 {
278 .name = "order",
279 .type = QEMU_OPT_STRING,
280 }, {
281 .name = "once",
282 .type = QEMU_OPT_STRING,
283 }, {
284 .name = "menu",
285 .type = QEMU_OPT_BOOL,
286 }, {
287 .name = "splash",
288 .type = QEMU_OPT_STRING,
289 }, {
290 .name = "splash-time",
291 .type = QEMU_OPT_NUMBER,
292 }, {
293 .name = "reboot-timeout",
294 .type = QEMU_OPT_NUMBER,
295 }, {
296 .name = "strict",
297 .type = QEMU_OPT_BOOL,
298 },
299 { /*End of list */ }
300 },
301 };
302
303 static QemuOptsList qemu_add_fd_opts = {
304 .name = "add-fd",
305 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
306 .desc = {
307 {
308 .name = "fd",
309 .type = QEMU_OPT_NUMBER,
310 .help = "file descriptor of which a duplicate is added to fd set",
311 },{
312 .name = "set",
313 .type = QEMU_OPT_NUMBER,
314 .help = "ID of the fd set to add fd to",
315 },{
316 .name = "opaque",
317 .type = QEMU_OPT_STRING,
318 .help = "free-form string used to describe fd",
319 },
320 { /* end of list */ }
321 },
322 };
323
324 static QemuOptsList qemu_object_opts = {
325 .name = "object",
326 .implied_opt_name = "qom-type",
327 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
328 .desc = {
329 { }
330 },
331 };
332
333 static QemuOptsList qemu_tpmdev_opts = {
334 .name = "tpmdev",
335 .implied_opt_name = "type",
336 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
337 .desc = {
338 /* options are defined in the TPM backends */
339 { /* end of list */ }
340 },
341 };
342
343 static QemuOptsList qemu_overcommit_opts = {
344 .name = "overcommit",
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
346 .desc = {
347 {
348 .name = "mem-lock",
349 .type = QEMU_OPT_BOOL,
350 },
351 {
352 .name = "cpu-pm",
353 .type = QEMU_OPT_BOOL,
354 },
355 { /* end of list */ }
356 },
357 };
358
359 static QemuOptsList qemu_msg_opts = {
360 .name = "msg",
361 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
362 .desc = {
363 {
364 .name = "timestamp",
365 .type = QEMU_OPT_BOOL,
366 },
367 {
368 .name = "guest-name",
369 .type = QEMU_OPT_BOOL,
370 .help = "Prepends guest name for error messages but only if "
371 "-name guest is set otherwise option is ignored\n",
372 },
373 { /* end of list */ }
374 },
375 };
376
377 static QemuOptsList qemu_name_opts = {
378 .name = "name",
379 .implied_opt_name = "guest",
380 .merge_lists = true,
381 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
382 .desc = {
383 {
384 .name = "guest",
385 .type = QEMU_OPT_STRING,
386 .help = "Sets the name of the guest.\n"
387 "This name will be displayed in the SDL window caption.\n"
388 "The name will also be used for the VNC server",
389 }, {
390 .name = "process",
391 .type = QEMU_OPT_STRING,
392 .help = "Sets the name of the QEMU process, as shown in top etc",
393 }, {
394 .name = "debug-threads",
395 .type = QEMU_OPT_BOOL,
396 .help = "When enabled, name the individual threads; defaults off.\n"
397 "NOTE: The thread names are for debugging and not a\n"
398 "stable API.",
399 },
400 { /* End of list */ }
401 },
402 };
403
404 static QemuOptsList qemu_mem_opts = {
405 .name = "memory",
406 .implied_opt_name = "size",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
408 .merge_lists = true,
409 .desc = {
410 {
411 .name = "size",
412 .type = QEMU_OPT_SIZE,
413 },
414 {
415 .name = "slots",
416 .type = QEMU_OPT_NUMBER,
417 },
418 {
419 .name = "maxmem",
420 .type = QEMU_OPT_SIZE,
421 },
422 { /* end of list */ }
423 },
424 };
425
426 static QemuOptsList qemu_icount_opts = {
427 .name = "icount",
428 .implied_opt_name = "shift",
429 .merge_lists = true,
430 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
431 .desc = {
432 {
433 .name = "shift",
434 .type = QEMU_OPT_STRING,
435 }, {
436 .name = "align",
437 .type = QEMU_OPT_BOOL,
438 }, {
439 .name = "sleep",
440 .type = QEMU_OPT_BOOL,
441 }, {
442 .name = "rr",
443 .type = QEMU_OPT_STRING,
444 }, {
445 .name = "rrfile",
446 .type = QEMU_OPT_STRING,
447 }, {
448 .name = "rrsnapshot",
449 .type = QEMU_OPT_STRING,
450 },
451 { /* end of list */ }
452 },
453 };
454
455 static QemuOptsList qemu_fw_cfg_opts = {
456 .name = "fw_cfg",
457 .implied_opt_name = "name",
458 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
459 .desc = {
460 {
461 .name = "name",
462 .type = QEMU_OPT_STRING,
463 .help = "Sets the fw_cfg name of the blob to be inserted",
464 }, {
465 .name = "file",
466 .type = QEMU_OPT_STRING,
467 .help = "Sets the name of the file from which "
468 "the fw_cfg blob will be loaded",
469 }, {
470 .name = "string",
471 .type = QEMU_OPT_STRING,
472 .help = "Sets content of the blob to be inserted from a string",
473 }, {
474 .name = "gen_id",
475 .type = QEMU_OPT_STRING,
476 .help = "Sets id of the object generating the fw_cfg blob "
477 "to be inserted",
478 },
479 { /* end of list */ }
480 },
481 };
482
483 static QemuOptsList qemu_action_opts = {
484 .name = "action",
485 .merge_lists = true,
486 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
487 .desc = {
488 {
489 .name = "shutdown",
490 .type = QEMU_OPT_STRING,
491 },{
492 .name = "reboot",
493 .type = QEMU_OPT_STRING,
494 },{
495 .name = "panic",
496 .type = QEMU_OPT_STRING,
497 },{
498 .name = "watchdog",
499 .type = QEMU_OPT_STRING,
500 },
501 { /* end of list */ }
502 },
503 };
504
505 const char *qemu_get_vm_name(void)
506 {
507 return qemu_name;
508 }
509
510 static void default_driver_disable(const char *driver)
511 {
512 int i;
513
514 if (!driver) {
515 return;
516 }
517
518 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
519 if (strcmp(default_list[i].driver, driver) != 0)
520 continue;
521 *(default_list[i].flag) = 0;
522 }
523 }
524
525 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
526 {
527 const char *driver = qemu_opt_get(opts, "driver");
528
529 default_driver_disable(driver);
530 return 0;
531 }
532
533 static void default_driver_check_json(void)
534 {
535 DeviceOption *opt;
536
537 QTAILQ_FOREACH(opt, &device_opts, next) {
538 const char *driver = qdict_get_try_str(opt->opts, "driver");
539 default_driver_disable(driver);
540 }
541 }
542
543 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
544 {
545 const char *proc_name;
546
547 if (qemu_opt_get(opts, "debug-threads")) {
548 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
549 }
550 qemu_name = qemu_opt_get(opts, "guest");
551
552 proc_name = qemu_opt_get(opts, "process");
553 if (proc_name) {
554 os_set_proc_name(proc_name);
555 }
556
557 return 0;
558 }
559
560 bool defaults_enabled(void)
561 {
562 return has_defaults;
563 }
564
565 #ifndef _WIN32
566 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
567 {
568 int fd, dupfd, flags;
569 int64_t fdset_id;
570 const char *fd_opaque = NULL;
571 AddfdInfo *fdinfo;
572
573 fd = qemu_opt_get_number(opts, "fd", -1);
574 fdset_id = qemu_opt_get_number(opts, "set", -1);
575 fd_opaque = qemu_opt_get(opts, "opaque");
576
577 if (fd < 0) {
578 error_setg(errp, "fd option is required and must be non-negative");
579 return -1;
580 }
581
582 if (fd <= STDERR_FILENO) {
583 error_setg(errp, "fd cannot be a standard I/O stream");
584 return -1;
585 }
586
587 /*
588 * All fds inherited across exec() necessarily have FD_CLOEXEC
589 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
590 */
591 flags = fcntl(fd, F_GETFD);
592 if (flags == -1 || (flags & FD_CLOEXEC)) {
593 error_setg(errp, "fd is not valid or already in use");
594 return -1;
595 }
596
597 if (fdset_id < 0) {
598 error_setg(errp, "set option is required and must be non-negative");
599 return -1;
600 }
601
602 #ifdef F_DUPFD_CLOEXEC
603 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
604 #else
605 dupfd = dup(fd);
606 if (dupfd != -1) {
607 qemu_set_cloexec(dupfd);
608 }
609 #endif
610 if (dupfd == -1) {
611 error_setg(errp, "error duplicating fd: %s", strerror(errno));
612 return -1;
613 }
614
615 /* add the duplicate fd, and optionally the opaque string, to the fd set */
616 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque,
617 &error_abort);
618 g_free(fdinfo);
619
620 return 0;
621 }
622
623 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
624 {
625 int fd;
626
627 fd = qemu_opt_get_number(opts, "fd", -1);
628 close(fd);
629
630 return 0;
631 }
632 #endif
633
634 /***********************************************************/
635 /* QEMU Block devices */
636
637 #define HD_OPTS "media=disk"
638 #define CDROM_OPTS "media=cdrom"
639 #define FD_OPTS ""
640 #define PFLASH_OPTS ""
641 #define MTD_OPTS ""
642 #define SD_OPTS ""
643
644 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
645 {
646 BlockInterfaceType *block_default_type = opaque;
647
648 return drive_new(opts, *block_default_type, errp) == NULL;
649 }
650
651 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
652 {
653 if (qemu_opt_get(opts, "snapshot") == NULL) {
654 qemu_opt_set(opts, "snapshot", "on", &error_abort);
655 }
656 return 0;
657 }
658
659 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
660 int index, const char *optstr)
661 {
662 QemuOpts *opts;
663 DriveInfo *dinfo;
664
665 if (!enable || drive_get_by_index(type, index)) {
666 return;
667 }
668
669 opts = drive_add(type, index, NULL, optstr);
670 if (snapshot) {
671 drive_enable_snapshot(NULL, opts, NULL);
672 }
673
674 dinfo = drive_new(opts, type, &error_abort);
675 dinfo->is_default = true;
676
677 }
678
679 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
680 MachineClass *machine_class, int snapshot)
681 {
682 /*
683 * If the currently selected machine wishes to override the
684 * units-per-bus property of its default HBA interface type, do so
685 * now.
686 */
687 if (machine_class->units_per_default_bus) {
688 override_max_devs(machine_class->block_default_type,
689 machine_class->units_per_default_bus);
690 }
691
692 /* open the virtual block devices */
693 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
694 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
695
696 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
697 loc_push_restore(&bdo->loc);
698 qmp_blockdev_add(bdo->bdo, &error_fatal);
699 loc_pop(&bdo->loc);
700 qapi_free_BlockdevOptions(bdo->bdo);
701 g_free(bdo);
702 }
703 if (snapshot) {
704 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
705 NULL, NULL);
706 }
707 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
708 &machine_class->block_default_type, &error_fatal)) {
709 /* We printed help */
710 exit(0);
711 }
712
713 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
714 CDROM_OPTS);
715 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
716 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
717
718 }
719
720 static QemuOptsList qemu_smp_opts = {
721 .name = "smp-opts",
722 .implied_opt_name = "cpus",
723 .merge_lists = true,
724 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
725 .desc = {
726 {
727 .name = "cpus",
728 .type = QEMU_OPT_NUMBER,
729 }, {
730 .name = "drawers",
731 .type = QEMU_OPT_NUMBER,
732 }, {
733 .name = "books",
734 .type = QEMU_OPT_NUMBER,
735 }, {
736 .name = "sockets",
737 .type = QEMU_OPT_NUMBER,
738 }, {
739 .name = "dies",
740 .type = QEMU_OPT_NUMBER,
741 }, {
742 .name = "clusters",
743 .type = QEMU_OPT_NUMBER,
744 }, {
745 .name = "cores",
746 .type = QEMU_OPT_NUMBER,
747 }, {
748 .name = "threads",
749 .type = QEMU_OPT_NUMBER,
750 }, {
751 .name = "maxcpus",
752 .type = QEMU_OPT_NUMBER,
753 },
754 { /*End of list */ }
755 },
756 };
757
758 #if defined(CONFIG_POSIX)
759 static QemuOptsList qemu_run_with_opts = {
760 .name = "run-with",
761 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
762 .desc = {
763 #if defined(CONFIG_LINUX)
764 {
765 .name = "async-teardown",
766 .type = QEMU_OPT_BOOL,
767 },
768 #endif
769 {
770 .name = "chroot",
771 .type = QEMU_OPT_STRING,
772 },
773 { /* end of list */ }
774 },
775 };
776
777 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
778
779 #else
780
781 #define qemu_add_run_with_opts()
782
783 #endif /* CONFIG_POSIX */
784
785 static void realtime_init(void)
786 {
787 if (enable_mlock) {
788 if (os_mlock() < 0) {
789 error_report("locking memory failed");
790 exit(1);
791 }
792 }
793 }
794
795
796 static void configure_msg(QemuOpts *opts)
797 {
798 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
799 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
800 }
801
802
803 /***********************************************************/
804 /* USB devices */
805
806 static int usb_device_add(const char *devname)
807 {
808 USBDevice *dev = NULL;
809
810 if (!machine_usb(current_machine)) {
811 return -1;
812 }
813
814 dev = usbdevice_create(devname);
815 if (!dev)
816 return -1;
817
818 return 0;
819 }
820
821 static int usb_parse(const char *cmdline)
822 {
823 int r;
824 r = usb_device_add(cmdline);
825 if (r < 0) {
826 error_report("could not add USB device '%s'", cmdline);
827 }
828 return r;
829 }
830
831 /***********************************************************/
832 /* machine registration */
833
834 static MachineClass *find_machine(const char *name, GSList *machines)
835 {
836 GSList *el;
837
838 for (el = machines; el; el = el->next) {
839 MachineClass *mc = el->data;
840
841 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
842 return mc;
843 }
844 }
845
846 return NULL;
847 }
848
849 static MachineClass *find_default_machine(GSList *machines)
850 {
851 GSList *el;
852 MachineClass *default_machineclass = NULL;
853
854 for (el = machines; el; el = el->next) {
855 MachineClass *mc = el->data;
856
857 if (mc->is_default) {
858 assert(default_machineclass == NULL && "Multiple default machines");
859 default_machineclass = mc;
860 }
861 }
862
863 return default_machineclass;
864 }
865
866 static void version(void)
867 {
868 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
869 QEMU_COPYRIGHT "\n");
870 }
871
872 static void help(int exitcode)
873 {
874 version();
875 printf("usage: %s [options] [disk_image]\n\n"
876 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
877 g_get_prgname());
878
879 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
880 if ((arch_mask) & arch_type) \
881 fputs(opt_help, stdout);
882
883 #define ARCHHEADING(text, arch_mask) \
884 if ((arch_mask) & arch_type) \
885 puts(stringify(text));
886
887 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
888
889 #include "qemu-options.def"
890
891 printf("\nDuring emulation, the following keys are useful:\n"
892 "ctrl-alt-f toggle full screen\n"
893 "ctrl-alt-n switch to virtual console 'n'\n"
894 "ctrl-alt toggle mouse and keyboard grab\n"
895 "\n"
896 "When using -nographic, press 'ctrl-a h' to get some help.\n"
897 "\n"
898 QEMU_HELP_BOTTOM "\n");
899
900 exit(exitcode);
901 }
902
903 enum {
904
905 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
906 opt_enum,
907 #define DEFHEADING(text)
908 #define ARCHHEADING(text, arch_mask)
909
910 #include "qemu-options.def"
911 };
912
913 #define HAS_ARG 0x0001
914
915 typedef struct QEMUOption {
916 const char *name;
917 int flags;
918 int index;
919 uint32_t arch_mask;
920 } QEMUOption;
921
922 static const QEMUOption qemu_options[] = {
923 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
924
925 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
926 { option, opt_arg, opt_enum, arch_mask },
927 #define DEFHEADING(text)
928 #define ARCHHEADING(text, arch_mask)
929
930 #include "qemu-options.def"
931 { /* end of list */ }
932 };
933
934 typedef struct VGAInterfaceInfo {
935 const char *opt_name; /* option name */
936 const char *name; /* human-readable name */
937 /* Class names indicating that support is available.
938 * If no class is specified, the interface is always available */
939 const char *class_names[2];
940 } VGAInterfaceInfo;
941
942 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
943 [VGA_NONE] = {
944 .opt_name = "none",
945 .name = "no graphic card",
946 },
947 [VGA_STD] = {
948 .opt_name = "std",
949 .name = "standard VGA",
950 .class_names = { "VGA", "isa-vga" },
951 },
952 [VGA_CIRRUS] = {
953 .opt_name = "cirrus",
954 .name = "Cirrus VGA",
955 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
956 },
957 [VGA_VMWARE] = {
958 .opt_name = "vmware",
959 .name = "VMWare SVGA",
960 .class_names = { "vmware-svga" },
961 },
962 [VGA_VIRTIO] = {
963 .opt_name = "virtio",
964 .name = "Virtio VGA",
965 .class_names = { "virtio-vga" },
966 },
967 [VGA_QXL] = {
968 .opt_name = "qxl",
969 .name = "QXL VGA",
970 .class_names = { "qxl-vga" },
971 },
972 [VGA_TCX] = {
973 .opt_name = "tcx",
974 .name = "TCX framebuffer",
975 .class_names = { "sun-tcx" },
976 },
977 [VGA_CG3] = {
978 .opt_name = "cg3",
979 .name = "CG3 framebuffer",
980 .class_names = { "cgthree" },
981 },
982 #ifdef CONFIG_XEN_BACKEND
983 [VGA_XENFB] = {
984 .opt_name = "xenfb",
985 .name = "Xen paravirtualized framebuffer",
986 },
987 #endif
988 };
989
990 static bool vga_interface_available(VGAInterfaceType t)
991 {
992 const VGAInterfaceInfo *ti = &vga_interfaces[t];
993
994 assert(t < VGA_TYPE_MAX);
995 return !ti->class_names[0] ||
996 module_object_class_by_name(ti->class_names[0]) ||
997 module_object_class_by_name(ti->class_names[1]);
998 }
999
1000 static const char *
1001 get_default_vga_model(const MachineClass *machine_class)
1002 {
1003 if (machine_class->default_display) {
1004 for (int t = 0; t < VGA_TYPE_MAX; t++) {
1005 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1006
1007 if (ti->opt_name && vga_interface_available(t) &&
1008 g_str_equal(ti->opt_name, machine_class->default_display)) {
1009 return machine_class->default_display;
1010 }
1011 }
1012
1013 warn_report_once("Default display '%s' is not available in this binary",
1014 machine_class->default_display);
1015 return NULL;
1016 } else if (vga_interface_available(VGA_CIRRUS)) {
1017 return "cirrus";
1018 } else if (vga_interface_available(VGA_STD)) {
1019 return "std";
1020 }
1021
1022 return NULL;
1023 }
1024
1025 static void select_vgahw(const MachineClass *machine_class, const char *p)
1026 {
1027 const char *opts;
1028 int t;
1029
1030 if (g_str_equal(p, "help")) {
1031 const char *def = get_default_vga_model(machine_class);
1032
1033 for (t = 0; t < VGA_TYPE_MAX; t++) {
1034 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1035
1036 if (vga_interface_available(t) && ti->opt_name) {
1037 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1038 (def && g_str_equal(ti->opt_name, def)) ?
1039 " (default)" : "");
1040 }
1041 }
1042 exit(0);
1043 }
1044
1045 assert(vga_interface_type == VGA_NONE);
1046 for (t = 0; t < VGA_TYPE_MAX; t++) {
1047 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1048 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1049 if (!vga_interface_available(t)) {
1050 error_report("%s not available", ti->name);
1051 exit(1);
1052 }
1053 vga_interface_type = t;
1054 break;
1055 }
1056 }
1057 if (t == VGA_TYPE_MAX) {
1058 invalid_vga:
1059 error_report("unknown vga type: %s", p);
1060 exit(1);
1061 }
1062 while (*opts) {
1063 const char *nextopt;
1064
1065 if (strstart(opts, ",retrace=", &nextopt)) {
1066 opts = nextopt;
1067 if (strstart(opts, "dumb", &nextopt))
1068 vga_retrace_method = VGA_RETRACE_DUMB;
1069 else if (strstart(opts, "precise", &nextopt))
1070 vga_retrace_method = VGA_RETRACE_PRECISE;
1071 else goto invalid_vga;
1072 } else goto invalid_vga;
1073 opts = nextopt;
1074 }
1075 }
1076
1077 static void parse_display_qapi(const char *str)
1078 {
1079 DisplayOptions *opts;
1080 Visitor *v;
1081
1082 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1083
1084 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1085 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1086
1087 qapi_free_DisplayOptions(opts);
1088 visit_free(v);
1089 }
1090
1091 DisplayOptions *qmp_query_display_options(Error **errp)
1092 {
1093 return QAPI_CLONE(DisplayOptions, &dpy);
1094 }
1095
1096 static void parse_display(const char *p)
1097 {
1098 if (is_help_option(p)) {
1099 qemu_display_help();
1100 exit(0);
1101 }
1102
1103 #ifdef CONFIG_VNC
1104 const char *opts;
1105
1106 if (strstart(p, "vnc", &opts)) {
1107 /*
1108 * vnc isn't a (local) DisplayType but a protocol for remote
1109 * display access.
1110 */
1111 if (*opts == '=') {
1112 vnc_parse(opts + 1);
1113 } else {
1114 error_report("VNC requires a display argument vnc=<display>");
1115 exit(1);
1116 }
1117 return;
1118 }
1119 #endif
1120
1121 parse_display_qapi(p);
1122 }
1123
1124 static inline bool nonempty_str(const char *str)
1125 {
1126 return str && *str;
1127 }
1128
1129 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1130 {
1131 gchar *buf;
1132 size_t size;
1133 const char *name, *file, *str, *gen_id;
1134 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1135
1136 if (fw_cfg == NULL) {
1137 error_setg(errp, "fw_cfg device not available");
1138 return -1;
1139 }
1140 name = qemu_opt_get(opts, "name");
1141 file = qemu_opt_get(opts, "file");
1142 str = qemu_opt_get(opts, "string");
1143 gen_id = qemu_opt_get(opts, "gen_id");
1144
1145 /* we need the name, and exactly one of: file, content string, gen_id */
1146 if (!nonempty_str(name) ||
1147 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1148 error_setg(errp, "name, plus exactly one of file,"
1149 " string and gen_id, are needed");
1150 return -1;
1151 }
1152 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1153 error_setg(errp, "name too long (max. %d char)",
1154 FW_CFG_MAX_FILE_PATH - 1);
1155 return -1;
1156 }
1157 if (nonempty_str(gen_id)) {
1158 /*
1159 * In this particular case where the content is populated
1160 * internally, the "etc/" namespace protection is relaxed,
1161 * so do not emit a warning.
1162 */
1163 } else if (strncmp(name, "opt/", 4) != 0) {
1164 warn_report("externally provided fw_cfg item names "
1165 "should be prefixed with \"opt/\"");
1166 }
1167 if (nonempty_str(str)) {
1168 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1169 buf = g_memdup(str, size);
1170 } else if (nonempty_str(gen_id)) {
1171 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1172 return -1;
1173 }
1174 return 0;
1175 } else {
1176 GError *err = NULL;
1177 if (!g_file_get_contents(file, &buf, &size, &err)) {
1178 error_setg(errp, "can't load %s: %s", file, err->message);
1179 g_error_free(err);
1180 return -1;
1181 }
1182 }
1183 /* For legacy, keep user files in a specific global order. */
1184 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1185 fw_cfg_add_file(fw_cfg, name, buf, size);
1186 fw_cfg_reset_order_override(fw_cfg);
1187 return 0;
1188 }
1189
1190 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1191 {
1192 return qdev_device_help(opts);
1193 }
1194
1195 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1196 {
1197 DeviceState *dev;
1198
1199 dev = qdev_device_add(opts, errp);
1200 if (!dev && *errp) {
1201 error_report_err(*errp);
1202 return -1;
1203 } else if (dev) {
1204 object_unref(OBJECT(dev));
1205 }
1206 return 0;
1207 }
1208
1209 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1210 {
1211 Error *local_err = NULL;
1212
1213 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1214 if (local_err) {
1215 error_propagate(errp, local_err);
1216 return -1;
1217 }
1218 exit(0);
1219 }
1220 return 0;
1221 }
1222
1223 #ifdef CONFIG_VIRTFS
1224 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1225 {
1226 return qemu_fsdev_add(opts, errp);
1227 }
1228 #endif
1229
1230 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1231 {
1232 return monitor_init_opts(opts, errp);
1233 }
1234
1235 static void monitor_parse(const char *str, const char *mode, bool pretty)
1236 {
1237 static int monitor_device_index = 0;
1238 QemuOpts *opts;
1239 const char *p;
1240 char label[32];
1241
1242 if (strstart(str, "chardev:", &p)) {
1243 snprintf(label, sizeof(label), "%s", p);
1244 } else {
1245 snprintf(label, sizeof(label), "compat_monitor%d",
1246 monitor_device_index);
1247 opts = qemu_chr_parse_compat(label, str, true);
1248 if (!opts) {
1249 error_report("parse error: %s", str);
1250 exit(1);
1251 }
1252 }
1253
1254 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1255 qemu_opt_set(opts, "mode", mode, &error_abort);
1256 qemu_opt_set(opts, "chardev", label, &error_abort);
1257 if (!strcmp(mode, "control")) {
1258 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1259 } else {
1260 assert(pretty == false);
1261 }
1262 monitor_device_index++;
1263 }
1264
1265 struct device_config {
1266 enum {
1267 DEV_USB, /* -usbdevice */
1268 DEV_SERIAL, /* -serial */
1269 DEV_PARALLEL, /* -parallel */
1270 DEV_DEBUGCON, /* -debugcon */
1271 DEV_GDB, /* -gdb, -s */
1272 DEV_SCLP, /* s390 sclp */
1273 } type;
1274 const char *cmdline;
1275 Location loc;
1276 QTAILQ_ENTRY(device_config) next;
1277 };
1278
1279 static QTAILQ_HEAD(, device_config) device_configs =
1280 QTAILQ_HEAD_INITIALIZER(device_configs);
1281
1282 static void add_device_config(int type, const char *cmdline)
1283 {
1284 struct device_config *conf;
1285
1286 conf = g_malloc0(sizeof(*conf));
1287 conf->type = type;
1288 conf->cmdline = cmdline;
1289 loc_save(&conf->loc);
1290 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1291 }
1292
1293 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1294 {
1295 struct device_config *conf;
1296 int rc;
1297
1298 QTAILQ_FOREACH(conf, &device_configs, next) {
1299 if (conf->type != type)
1300 continue;
1301 loc_push_restore(&conf->loc);
1302 rc = func(conf->cmdline);
1303 loc_pop(&conf->loc);
1304 if (rc) {
1305 return rc;
1306 }
1307 }
1308 return 0;
1309 }
1310
1311 static void qemu_disable_default_devices(void)
1312 {
1313 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1314
1315 default_driver_check_json();
1316 qemu_opts_foreach(qemu_find_opts("device"),
1317 default_driver_check, NULL, NULL);
1318 qemu_opts_foreach(qemu_find_opts("global"),
1319 default_driver_check, NULL, NULL);
1320
1321 if (!vga_model && !default_vga) {
1322 vga_interface_type = VGA_DEVICE;
1323 vga_interface_created = true;
1324 }
1325 if (!has_defaults || machine_class->no_serial) {
1326 default_serial = 0;
1327 }
1328 if (!has_defaults || machine_class->no_parallel) {
1329 default_parallel = 0;
1330 }
1331 if (!has_defaults || machine_class->no_floppy) {
1332 default_floppy = 0;
1333 }
1334 if (!has_defaults || machine_class->no_cdrom) {
1335 default_cdrom = 0;
1336 }
1337 if (!has_defaults || machine_class->no_sdcard) {
1338 default_sdcard = 0;
1339 }
1340 if (!has_defaults) {
1341 default_audio = 0;
1342 default_monitor = 0;
1343 default_net = 0;
1344 default_vga = 0;
1345 } else {
1346 if (default_net && machine_class->default_nic &&
1347 !module_object_class_by_name(machine_class->default_nic)) {
1348 warn_report("Default NIC '%s' is not available in this binary",
1349 machine_class->default_nic);
1350 default_net = 0;
1351 }
1352 }
1353 }
1354
1355 static void qemu_setup_display(void)
1356 {
1357 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1358 if (!qemu_display_find_default(&dpy)) {
1359 dpy.type = DISPLAY_TYPE_NONE;
1360 #if defined(CONFIG_VNC)
1361 vnc_parse("localhost:0,to=99,id=default");
1362 #endif
1363 }
1364 }
1365 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1366 dpy.type = DISPLAY_TYPE_NONE;
1367 }
1368
1369 qemu_display_early_init(&dpy);
1370 }
1371
1372 static void qemu_create_default_devices(void)
1373 {
1374 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1375 const char *vc = qemu_display_get_vc(&dpy);
1376
1377 if (is_daemonized()) {
1378 /* According to documentation and historically, -nographic redirects
1379 * serial port, parallel port and monitor to stdio, which does not work
1380 * with -daemonize. We can redirect these to null instead, but since
1381 * -nographic is legacy, let's just error out.
1382 * We disallow -nographic only if all other ports are not redirected
1383 * explicitly, to not break existing legacy setups which uses
1384 * -nographic _and_ redirects all ports explicitly - this is valid
1385 * usage, -nographic is just a no-op in this case.
1386 */
1387 if (nographic
1388 && (default_parallel || default_serial || default_monitor)) {
1389 error_report("-nographic cannot be used with -daemonize");
1390 exit(1);
1391 }
1392 }
1393
1394 if (nographic || (!vc && !is_daemonized() && isatty(STDOUT_FILENO))) {
1395 if (default_parallel) {
1396 add_device_config(DEV_PARALLEL, "null");
1397 }
1398 if (default_serial && default_monitor) {
1399 add_device_config(DEV_SERIAL, "mon:stdio");
1400 } else {
1401 if (default_serial) {
1402 add_device_config(DEV_SERIAL, "stdio");
1403 }
1404 if (default_monitor) {
1405 monitor_parse("stdio", "readline", false);
1406 }
1407 }
1408 } else {
1409 if (default_serial) {
1410 add_device_config(DEV_SERIAL, vc ?: "null");
1411 }
1412 if (default_parallel) {
1413 add_device_config(DEV_PARALLEL, vc ?: "null");
1414 }
1415 if (default_monitor && vc) {
1416 monitor_parse(vc, "readline", false);
1417 }
1418 }
1419
1420 if (default_net) {
1421 QemuOptsList *net = qemu_find_opts("net");
1422 qemu_opts_parse(net, "nic", true, &error_abort);
1423 #ifdef CONFIG_SLIRP
1424 qemu_opts_parse(net, "user", true, &error_abort);
1425 #endif
1426 }
1427
1428 /* If no default VGA is requested, the default is "none". */
1429 if (default_vga) {
1430 vga_model = get_default_vga_model(machine_class);
1431 }
1432 if (vga_model) {
1433 select_vgahw(machine_class, vga_model);
1434 }
1435 }
1436
1437 static int serial_parse(const char *devname)
1438 {
1439 int index = num_serial_hds;
1440 char label[32];
1441
1442 if (strcmp(devname, "none") == 0)
1443 return 0;
1444 snprintf(label, sizeof(label), "serial%d", index);
1445 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1446
1447 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1448 if (!serial_hds[index]) {
1449 error_report("could not connect serial device"
1450 " to character backend '%s'", devname);
1451 return -1;
1452 }
1453 num_serial_hds++;
1454 return 0;
1455 }
1456
1457 Chardev *serial_hd(int i)
1458 {
1459 assert(i >= 0);
1460 if (i < num_serial_hds) {
1461 return serial_hds[i];
1462 }
1463 return NULL;
1464 }
1465
1466 static int parallel_parse(const char *devname)
1467 {
1468 static int index = 0;
1469 char label[32];
1470
1471 if (strcmp(devname, "none") == 0)
1472 return 0;
1473 if (index == MAX_PARALLEL_PORTS) {
1474 error_report("too many parallel ports");
1475 exit(1);
1476 }
1477 snprintf(label, sizeof(label), "parallel%d", index);
1478 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1479 if (!parallel_hds[index]) {
1480 error_report("could not connect parallel device"
1481 " to character backend '%s'", devname);
1482 return -1;
1483 }
1484 index++;
1485 return 0;
1486 }
1487
1488 static int debugcon_parse(const char *devname)
1489 {
1490 QemuOpts *opts;
1491
1492 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1493 error_report("invalid character backend '%s'", devname);
1494 exit(1);
1495 }
1496 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1497 if (!opts) {
1498 error_report("already have a debugcon device");
1499 exit(1);
1500 }
1501 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1502 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1503 return 0;
1504 }
1505
1506 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1507 {
1508 const MachineClass *mc1 = a, *mc2 = b;
1509 int res;
1510
1511 if (mc1->family == NULL) {
1512 if (mc2->family == NULL) {
1513 /* Compare standalone machine types against each other; they sort
1514 * in increasing order.
1515 */
1516 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1517 object_class_get_name(OBJECT_CLASS(mc2)));
1518 }
1519
1520 /* Standalone machine types sort after families. */
1521 return 1;
1522 }
1523
1524 if (mc2->family == NULL) {
1525 /* Families sort before standalone machine types. */
1526 return -1;
1527 }
1528
1529 /* Families sort between each other alphabetically increasingly. */
1530 res = strcmp(mc1->family, mc2->family);
1531 if (res != 0) {
1532 return res;
1533 }
1534
1535 /* Within the same family, machine types sort in decreasing order. */
1536 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1537 object_class_get_name(OBJECT_CLASS(mc1)));
1538 }
1539
1540 static void machine_help_func(const QDict *qdict)
1541 {
1542 g_autoptr(GSList) machines = NULL;
1543 GSList *el;
1544 const char *type = qdict_get_try_str(qdict, "type");
1545
1546 machines = object_class_get_list(TYPE_MACHINE, false);
1547 if (type) {
1548 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1549 if (machine_class) {
1550 type_print_class_properties(object_class_get_name(machine_class));
1551 return;
1552 }
1553 }
1554
1555 printf("Supported machines are:\n");
1556 machines = g_slist_sort(machines, machine_class_cmp);
1557 for (el = machines; el; el = el->next) {
1558 MachineClass *mc = el->data;
1559 if (mc->alias) {
1560 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1561 }
1562 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1563 mc->is_default ? " (default)" : "",
1564 mc->deprecation_reason ? " (deprecated)" : "");
1565 }
1566 }
1567
1568 static void
1569 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1570 {
1571 QDict *opts;
1572
1573 opts = qdict_new();
1574 /* Preserve the caller's reference to prop. */
1575 qobject_ref(prop);
1576 qdict_put(opts, propname, prop);
1577 keyval_merge(machine_opts_dict, opts, errp);
1578 qobject_unref(opts);
1579 }
1580
1581 static void
1582 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1583 const char *arg)
1584 {
1585 QDict *prop = NULL;
1586 bool help = false;
1587
1588 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1589 if (help) {
1590 qemu_opts_print_help(opts_list, true);
1591 exit(0);
1592 }
1593 machine_merge_property(propname, prop, &error_fatal);
1594 qobject_unref(prop);
1595 }
1596
1597 static const char *pid_file;
1598 struct UnlinkPidfileNotifier {
1599 Notifier notifier;
1600 char *pid_file_realpath;
1601 };
1602 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1603
1604 static void qemu_unlink_pidfile(Notifier *n, void *data)
1605 {
1606 struct UnlinkPidfileNotifier *upn;
1607
1608 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1609 unlink(upn->pid_file_realpath);
1610 }
1611
1612 static const QEMUOption *lookup_opt(int argc, char **argv,
1613 const char **poptarg, int *poptind)
1614 {
1615 const QEMUOption *popt;
1616 int optind = *poptind;
1617 char *r = argv[optind];
1618 const char *optarg;
1619
1620 loc_set_cmdline(argv, optind, 1);
1621 optind++;
1622 /* Treat --foo the same as -foo. */
1623 if (r[1] == '-')
1624 r++;
1625 popt = qemu_options;
1626 for(;;) {
1627 if (!popt->name) {
1628 error_report("invalid option");
1629 exit(1);
1630 }
1631 if (!strcmp(popt->name, r + 1))
1632 break;
1633 popt++;
1634 }
1635 if (popt->flags & HAS_ARG) {
1636 if (optind >= argc) {
1637 error_report("requires an argument");
1638 exit(1);
1639 }
1640 optarg = argv[optind++];
1641 loc_set_cmdline(argv, optind - 2, 2);
1642 } else {
1643 optarg = NULL;
1644 }
1645
1646 *poptarg = optarg;
1647 *poptind = optind;
1648
1649 return popt;
1650 }
1651
1652 static MachineClass *select_machine(QDict *qdict, Error **errp)
1653 {
1654 const char *machine_type = qdict_get_try_str(qdict, "type");
1655 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1656 MachineClass *machine_class;
1657 Error *local_err = NULL;
1658
1659 if (machine_type) {
1660 machine_class = find_machine(machine_type, machines);
1661 qdict_del(qdict, "type");
1662 if (!machine_class) {
1663 error_setg(&local_err, "unsupported machine type");
1664 }
1665 } else {
1666 machine_class = find_default_machine(machines);
1667 if (!machine_class) {
1668 error_setg(&local_err, "No machine specified, and there is no default");
1669 }
1670 }
1671
1672 g_slist_free(machines);
1673 if (local_err) {
1674 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1675 error_propagate(errp, local_err);
1676 }
1677 return machine_class;
1678 }
1679
1680 static int object_parse_property_opt(Object *obj,
1681 const char *name, const char *value,
1682 const char *skip, Error **errp)
1683 {
1684 if (g_str_equal(name, skip)) {
1685 return 0;
1686 }
1687
1688 if (!object_property_parse(obj, name, value, errp)) {
1689 return -1;
1690 }
1691
1692 return 0;
1693 }
1694
1695 /* *Non*recursively replace underscores with dashes in QDict keys. */
1696 static void keyval_dashify(QDict *qdict, Error **errp)
1697 {
1698 const QDictEntry *ent, *next;
1699 char *p;
1700
1701 for (ent = qdict_first(qdict); ent; ent = next) {
1702 g_autofree char *new_key = NULL;
1703
1704 next = qdict_next(qdict, ent);
1705 if (!strchr(ent->key, '_')) {
1706 continue;
1707 }
1708 new_key = g_strdup(ent->key);
1709 for (p = new_key; *p; p++) {
1710 if (*p == '_') {
1711 *p = '-';
1712 }
1713 }
1714 if (qdict_haskey(qdict, new_key)) {
1715 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1716 return;
1717 }
1718 qobject_ref(ent->value);
1719 qdict_put_obj(qdict, new_key, ent->value);
1720 qdict_del(qdict, ent->key);
1721 }
1722 }
1723
1724 static void qemu_apply_legacy_machine_options(QDict *qdict)
1725 {
1726 const char *value;
1727 QObject *prop;
1728
1729 keyval_dashify(qdict, &error_fatal);
1730
1731 /* Legacy options do not correspond to MachineState properties. */
1732 value = qdict_get_try_str(qdict, "accel");
1733 if (value) {
1734 accelerators = g_strdup(value);
1735 qdict_del(qdict, "accel");
1736 }
1737
1738 value = qdict_get_try_str(qdict, "igd-passthru");
1739 if (value) {
1740 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1741 false);
1742 qdict_del(qdict, "igd-passthru");
1743 }
1744
1745 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1746 if (value) {
1747 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1748 false);
1749 qdict_del(qdict, "kvm-shadow-mem");
1750 }
1751
1752 value = qdict_get_try_str(qdict, "kernel-irqchip");
1753 if (value) {
1754 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1755 false);
1756 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1757 false);
1758 qdict_del(qdict, "kernel-irqchip");
1759 }
1760
1761 value = qdict_get_try_str(qdict, "memory-backend");
1762 if (value) {
1763 if (mem_path) {
1764 error_report("'-mem-path' can't be used together with"
1765 "'-machine memory-backend'");
1766 exit(EXIT_FAILURE);
1767 }
1768
1769 /* Resolved later. */
1770 ram_memdev_id = g_strdup(value);
1771 qdict_del(qdict, "memory-backend");
1772 }
1773
1774 prop = qdict_get(qdict, "memory");
1775 if (prop) {
1776 have_custom_ram_size =
1777 qobject_type(prop) == QTYPE_QDICT &&
1778 qdict_haskey(qobject_to(QDict, prop), "size");
1779 }
1780 }
1781
1782 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1783 {
1784 ObjectOption *opt, *next;
1785
1786 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1787 const char *type = ObjectType_str(opt->opts->qom_type);
1788 if (type_opt_predicate(type)) {
1789 user_creatable_add_qapi(opt->opts, &error_fatal);
1790 qapi_free_ObjectOptions(opt->opts);
1791 QTAILQ_REMOVE(&object_opts, opt, next);
1792 g_free(opt);
1793 }
1794 }
1795 }
1796
1797 static void object_option_add_visitor(Visitor *v)
1798 {
1799 ObjectOption *opt = g_new0(ObjectOption, 1);
1800 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1801 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1802 }
1803
1804 static void object_option_parse(const char *str)
1805 {
1806 QemuOpts *opts;
1807 const char *type;
1808 Visitor *v;
1809
1810 if (str[0] == '{') {
1811 QObject *obj = qobject_from_json(str, &error_fatal);
1812
1813 v = qobject_input_visitor_new(obj);
1814 qobject_unref(obj);
1815 } else {
1816 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1817 str, true);
1818 if (!opts) {
1819 exit(1);
1820 }
1821
1822 type = qemu_opt_get(opts, "qom-type");
1823 if (!type) {
1824 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1825 }
1826 if (user_creatable_print_help(type, opts)) {
1827 exit(0);
1828 }
1829
1830 v = opts_visitor_new(opts);
1831 }
1832
1833 object_option_add_visitor(v);
1834 visit_free(v);
1835 }
1836
1837 /*
1838 * Very early object creation, before the sandbox options have been activated.
1839 */
1840 static bool object_create_pre_sandbox(const char *type)
1841 {
1842 /*
1843 * Objects should in general not get initialized "too early" without
1844 * a reason. If you add one, state the reason in a comment!
1845 */
1846
1847 /*
1848 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1849 * affinity of threads.
1850 */
1851 if (g_str_equal(type, "thread-context")) {
1852 return true;
1853 }
1854
1855 return false;
1856 }
1857
1858 /*
1859 * Initial object creation happens before all other
1860 * QEMU data types are created. The majority of objects
1861 * can be created at this point. The rng-egd object
1862 * cannot be created here, as it depends on the chardev
1863 * already existing.
1864 */
1865 static bool object_create_early(const char *type)
1866 {
1867 /*
1868 * Objects should not be made "delayed" without a reason. If you
1869 * add one, state the reason in a comment!
1870 */
1871
1872 /* Reason: already created. */
1873 if (object_create_pre_sandbox(type)) {
1874 return false;
1875 }
1876
1877 /* Reason: property "chardev" */
1878 if (g_str_equal(type, "rng-egd") ||
1879 g_str_equal(type, "qtest")) {
1880 return false;
1881 }
1882
1883 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1884 /* Reason: cryptodev-vhost-user property "chardev" */
1885 if (g_str_equal(type, "cryptodev-vhost-user")) {
1886 return false;
1887 }
1888 #endif
1889
1890 /* Reason: vhost-user-blk-server property "node-name" */
1891 if (g_str_equal(type, "vhost-user-blk-server")) {
1892 return false;
1893 }
1894 /*
1895 * Reason: filter-* property "netdev" etc.
1896 */
1897 if (g_str_equal(type, "filter-buffer") ||
1898 g_str_equal(type, "filter-dump") ||
1899 g_str_equal(type, "filter-mirror") ||
1900 g_str_equal(type, "filter-redirector") ||
1901 g_str_equal(type, "colo-compare") ||
1902 g_str_equal(type, "filter-rewriter") ||
1903 g_str_equal(type, "filter-replay")) {
1904 return false;
1905 }
1906
1907 /*
1908 * Allocation of large amounts of memory may delay
1909 * chardev initialization for too long, and trigger timeouts
1910 * on software that waits for a monitor socket to be created
1911 * (e.g. libvirt).
1912 */
1913 if (g_str_has_prefix(type, "memory-backend-")) {
1914 return false;
1915 }
1916
1917 return true;
1918 }
1919
1920 static void qemu_apply_machine_options(QDict *qdict)
1921 {
1922 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1923
1924 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1925 /* fall back to the -kernel/-append */
1926 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1927 }
1928
1929 if (current_machine->smp.cpus > 1) {
1930 replay_add_blocker("smp");
1931 }
1932 }
1933
1934 static void qemu_create_early_backends(void)
1935 {
1936 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1937 #if defined(CONFIG_SDL)
1938 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1939 #else
1940 const bool use_sdl = false;
1941 #endif
1942 #if defined(CONFIG_GTK)
1943 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1944 #else
1945 const bool use_gtk = false;
1946 #endif
1947
1948 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1949 error_report("window-close is only valid for GTK and SDL, "
1950 "ignoring option");
1951 }
1952
1953 qemu_console_early_init();
1954
1955 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1956 #if defined(CONFIG_OPENGL)
1957 error_report("OpenGL is not supported by the display");
1958 #else
1959 error_report("OpenGL support is disabled");
1960 #endif
1961 exit(1);
1962 }
1963
1964 object_option_foreach_add(object_create_early);
1965
1966 /* spice needs the timers to be initialized by this point */
1967 /* spice must initialize before audio as it changes the default audiodev */
1968 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1969 qemu_spice.init();
1970
1971 qemu_opts_foreach(qemu_find_opts("chardev"),
1972 chardev_init_func, NULL, &error_fatal);
1973
1974 #ifdef CONFIG_VIRTFS
1975 qemu_opts_foreach(qemu_find_opts("fsdev"),
1976 fsdev_init_func, NULL, &error_fatal);
1977 #endif
1978
1979 /*
1980 * Note: we need to create audio and block backends before
1981 * setting machine properties, so they can be referred to.
1982 */
1983 configure_blockdev(&bdo_queue, machine_class, snapshot);
1984 audio_init_audiodevs();
1985 if (default_audio) {
1986 audio_create_default_audiodevs();
1987 }
1988 }
1989
1990
1991 /*
1992 * The remainder of object creation happens after the
1993 * creation of chardev, fsdev, net clients and device data types.
1994 */
1995 static bool object_create_late(const char *type)
1996 {
1997 return !object_create_early(type) && !object_create_pre_sandbox(type);
1998 }
1999
2000 static void qemu_create_late_backends(void)
2001 {
2002 if (qtest_chrdev) {
2003 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
2004 }
2005
2006 net_init_clients();
2007
2008 object_option_foreach_add(object_create_late);
2009
2010 if (tpm_init() < 0) {
2011 exit(1);
2012 }
2013
2014 qemu_opts_foreach(qemu_find_opts("mon"),
2015 mon_init_func, NULL, &error_fatal);
2016
2017 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2018 exit(1);
2019 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2020 exit(1);
2021 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2022 exit(1);
2023
2024 /* now chardevs have been created we may have semihosting to connect */
2025 qemu_semihosting_chardev_init();
2026 }
2027
2028 static void qemu_resolve_machine_memdev(void)
2029 {
2030 if (ram_memdev_id) {
2031 Object *backend;
2032 ram_addr_t backend_size;
2033
2034 backend = object_resolve_path_type(ram_memdev_id,
2035 TYPE_MEMORY_BACKEND, NULL);
2036 if (!backend) {
2037 error_report("Memory backend '%s' not found", ram_memdev_id);
2038 exit(EXIT_FAILURE);
2039 }
2040 if (!have_custom_ram_size) {
2041 backend_size = object_property_get_uint(backend, "size", &error_abort);
2042 current_machine->ram_size = backend_size;
2043 }
2044 object_property_set_link(OBJECT(current_machine),
2045 "memory-backend", backend, &error_fatal);
2046 }
2047 }
2048
2049 static void parse_memory_options(void)
2050 {
2051 QemuOpts *opts = qemu_find_opts_singleton("memory");
2052 QDict *dict, *prop;
2053 const char *mem_str;
2054 Location loc;
2055
2056 loc_push_none(&loc);
2057 qemu_opts_loc_restore(opts);
2058
2059 prop = qdict_new();
2060
2061 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2062 /* Fix up legacy suffix-less format */
2063 mem_str = qemu_opt_get(opts, "size");
2064 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2065 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2066 qdict_put_str(prop, "size", mib_str);
2067 } else {
2068 qdict_put_str(prop, "size", mem_str);
2069 }
2070 }
2071
2072 if (qemu_opt_get(opts, "maxmem")) {
2073 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2074 }
2075 if (qemu_opt_get(opts, "slots")) {
2076 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2077 }
2078
2079 dict = qdict_new();
2080 qdict_put(dict, "memory", prop);
2081 keyval_merge(machine_opts_dict, dict, &error_fatal);
2082 qobject_unref(dict);
2083 loc_pop(&loc);
2084 }
2085
2086 static void qemu_create_machine(QDict *qdict)
2087 {
2088 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2089 object_set_machine_compat_props(machine_class->compat_props);
2090
2091 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2092 object_property_add_child(object_get_root(), "machine",
2093 OBJECT(current_machine));
2094 object_property_add_child(container_get(OBJECT(current_machine),
2095 "/unattached"),
2096 "sysbus", OBJECT(sysbus_get_default()));
2097
2098 if (machine_class->minimum_page_bits) {
2099 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2100 /* This would be a board error: specifying a minimum smaller than
2101 * a target's compile-time fixed setting.
2102 */
2103 g_assert_not_reached();
2104 }
2105 }
2106
2107 cpu_exec_init_all();
2108 page_size_init();
2109
2110 if (machine_class->hw_version) {
2111 qemu_set_hw_version(machine_class->hw_version);
2112 }
2113
2114 /*
2115 * Get the default machine options from the machine if it is not already
2116 * specified either by the configuration file or by the command line.
2117 */
2118 if (machine_class->default_machine_opts) {
2119 QDict *default_opts =
2120 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2121 &error_abort);
2122 qemu_apply_legacy_machine_options(default_opts);
2123 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2124 false, &error_abort);
2125 qobject_unref(default_opts);
2126 }
2127 }
2128
2129 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2130 {
2131 GlobalProperty *g;
2132
2133 g = g_malloc0(sizeof(*g));
2134 g->driver = qemu_opt_get(opts, "driver");
2135 g->property = qemu_opt_get(opts, "property");
2136 g->value = qemu_opt_get(opts, "value");
2137 qdev_prop_register_global(g);
2138 return 0;
2139 }
2140
2141 /*
2142 * Return whether configuration group @group is stored in QemuOpts, or
2143 * recorded as one or more QDicts by qemu_record_config_group.
2144 */
2145 static bool is_qemuopts_group(const char *group)
2146 {
2147 if (g_str_equal(group, "object") ||
2148 g_str_equal(group, "audiodev") ||
2149 g_str_equal(group, "machine") ||
2150 g_str_equal(group, "smp-opts") ||
2151 g_str_equal(group, "boot-opts")) {
2152 return false;
2153 }
2154 return true;
2155 }
2156
2157 static void qemu_record_config_group(const char *group, QDict *dict,
2158 bool from_json, Error **errp)
2159 {
2160 if (g_str_equal(group, "object")) {
2161 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2162 object_option_add_visitor(v);
2163 visit_free(v);
2164
2165 } else if (g_str_equal(group, "audiodev")) {
2166 Audiodev *dev = NULL;
2167 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2168 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2169 audio_define(dev);
2170 }
2171 visit_free(v);
2172
2173 } else if (g_str_equal(group, "machine")) {
2174 /*
2175 * Cannot merge string-valued and type-safe dictionaries, so JSON
2176 * is not accepted yet for -M.
2177 */
2178 assert(!from_json);
2179 keyval_merge(machine_opts_dict, dict, errp);
2180 } else if (g_str_equal(group, "smp-opts")) {
2181 machine_merge_property("smp", dict, &error_fatal);
2182 } else if (g_str_equal(group, "boot-opts")) {
2183 machine_merge_property("boot", dict, &error_fatal);
2184 } else {
2185 abort();
2186 }
2187 }
2188
2189 /*
2190 * Parse non-QemuOpts config file groups, pass the rest to
2191 * qemu_config_do_parse.
2192 */
2193 static void qemu_parse_config_group(const char *group, QDict *qdict,
2194 void *opaque, Error **errp)
2195 {
2196 QObject *crumpled;
2197 if (is_qemuopts_group(group)) {
2198 qemu_config_do_parse(group, qdict, opaque, errp);
2199 return;
2200 }
2201
2202 crumpled = qdict_crumple(qdict, errp);
2203 if (!crumpled) {
2204 return;
2205 }
2206 switch (qobject_type(crumpled)) {
2207 case QTYPE_QDICT:
2208 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2209 break;
2210 case QTYPE_QLIST:
2211 error_setg(errp, "Lists cannot be at top level of a configuration section");
2212 break;
2213 default:
2214 g_assert_not_reached();
2215 }
2216 qobject_unref(crumpled);
2217 }
2218
2219 static void qemu_read_default_config_file(Error **errp)
2220 {
2221 ERRP_GUARD();
2222 int ret;
2223 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2224
2225 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2226 if (ret < 0) {
2227 if (ret == -ENOENT) {
2228 error_free(*errp);
2229 *errp = NULL;
2230 }
2231 }
2232 }
2233
2234 static void qemu_set_option(const char *str, Error **errp)
2235 {
2236 char group[64], id[64], arg[64];
2237 QemuOptsList *list;
2238 QemuOpts *opts;
2239 int rc, offset;
2240
2241 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2242 if (rc < 3 || str[offset] != '=') {
2243 error_setg(errp, "can't parse: \"%s\"", str);
2244 return;
2245 }
2246
2247 if (!is_qemuopts_group(group)) {
2248 error_setg(errp, "-set is not supported with %s", group);
2249 } else {
2250 list = qemu_find_opts_err(group, errp);
2251 if (list) {
2252 opts = qemu_opts_find(list, id);
2253 if (!opts) {
2254 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2255 return;
2256 }
2257 qemu_opt_set(opts, arg, str + offset + 1, errp);
2258 }
2259 }
2260 }
2261
2262 static void user_register_global_props(void)
2263 {
2264 qemu_opts_foreach(qemu_find_opts("global"),
2265 global_init_func, NULL, NULL);
2266 }
2267
2268 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2269 {
2270 icount_configure(opts, errp);
2271 return 0;
2272 }
2273
2274 static int accelerator_set_property(void *opaque,
2275 const char *name, const char *value,
2276 Error **errp)
2277 {
2278 return object_parse_property_opt(opaque, name, value, "accel", errp);
2279 }
2280
2281 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2282 {
2283 bool *p_init_failed = opaque;
2284 const char *acc = qemu_opt_get(opts, "accel");
2285 AccelClass *ac = accel_find(acc);
2286 AccelState *accel;
2287 int ret;
2288 bool qtest_with_kvm;
2289
2290 if (!acc) {
2291 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2292 goto bad;
2293 }
2294
2295 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2296
2297 if (!ac) {
2298 if (!qtest_with_kvm) {
2299 error_report("invalid accelerator %s", acc);
2300 }
2301 goto bad;
2302 }
2303 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2304 object_apply_compat_props(OBJECT(accel));
2305 qemu_opt_foreach(opts, accelerator_set_property,
2306 accel,
2307 &error_fatal);
2308 /*
2309 * If legacy -singlestep option is set, honour it for TCG and
2310 * silently ignore for any other accelerator (which is how this
2311 * option has always behaved).
2312 */
2313 if (opt_one_insn_per_tb) {
2314 /*
2315 * This will always succeed for TCG, and we want to ignore
2316 * the error from trying to set a nonexistent property
2317 * on any other accelerator.
2318 */
2319 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL);
2320 }
2321 ret = accel_init_machine(accel, current_machine);
2322 if (ret < 0) {
2323 if (!qtest_with_kvm || ret != -ENOENT) {
2324 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2325 }
2326 goto bad;
2327 }
2328
2329 return 1;
2330
2331 bad:
2332 *p_init_failed = true;
2333 return 0;
2334 }
2335
2336 static void configure_accelerators(const char *progname)
2337 {
2338 bool init_failed = false;
2339
2340 qemu_opts_foreach(qemu_find_opts("icount"),
2341 do_configure_icount, NULL, &error_fatal);
2342
2343 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2344 char **accel_list, **tmp;
2345
2346 if (accelerators == NULL) {
2347 /* Select the default accelerator */
2348 bool have_tcg = accel_find("tcg");
2349 bool have_kvm = accel_find("kvm");
2350
2351 if (have_tcg && have_kvm) {
2352 if (g_str_has_suffix(progname, "kvm")) {
2353 /* If the program name ends with "kvm", we prefer KVM */
2354 accelerators = "kvm:tcg";
2355 } else {
2356 accelerators = "tcg:kvm";
2357 }
2358 } else if (have_kvm) {
2359 accelerators = "kvm";
2360 } else if (have_tcg) {
2361 accelerators = "tcg";
2362 } else {
2363 error_report("No accelerator selected and"
2364 " no default accelerator available");
2365 exit(1);
2366 }
2367 }
2368 accel_list = g_strsplit(accelerators, ":", 0);
2369
2370 for (tmp = accel_list; *tmp; tmp++) {
2371 /*
2372 * Filter invalid accelerators here, to prevent obscenities
2373 * such as "-machine accel=tcg,,thread=single".
2374 */
2375 if (accel_find(*tmp)) {
2376 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2377 } else {
2378 init_failed = true;
2379 error_report("invalid accelerator %s", *tmp);
2380 }
2381 }
2382 g_strfreev(accel_list);
2383 } else {
2384 if (accelerators != NULL) {
2385 error_report("The -accel and \"-machine accel=\" options are incompatible");
2386 exit(1);
2387 }
2388 }
2389
2390 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2391 do_configure_accelerator, &init_failed, &error_fatal)) {
2392 if (!init_failed) {
2393 error_report("no accelerator found");
2394 }
2395 exit(1);
2396 }
2397
2398 if (init_failed && !qtest_chrdev) {
2399 error_report("falling back to %s", current_accel_name());
2400 }
2401
2402 if (icount_enabled() && !tcg_enabled()) {
2403 error_report("-icount is not allowed with hardware virtualization");
2404 exit(1);
2405 }
2406 }
2407
2408 static void qemu_validate_options(const QDict *machine_opts)
2409 {
2410 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2411 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2412 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2413
2414 if (kernel_filename == NULL) {
2415 if (kernel_cmdline != NULL) {
2416 error_report("-append only allowed with -kernel option");
2417 exit(1);
2418 }
2419
2420 if (initrd_filename != NULL) {
2421 error_report("-initrd only allowed with -kernel option");
2422 exit(1);
2423 }
2424 }
2425
2426 if (loadvm && preconfig_requested) {
2427 error_report("'preconfig' and 'loadvm' options are "
2428 "mutually exclusive");
2429 exit(EXIT_FAILURE);
2430 }
2431 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2432 error_report("'preconfig' supports '-incoming defer' only");
2433 exit(EXIT_FAILURE);
2434 }
2435
2436 #ifdef CONFIG_CURSES
2437 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2438 error_report("curses display cannot be used with -daemonize");
2439 exit(1);
2440 }
2441 #endif
2442 }
2443
2444 static void qemu_process_sugar_options(void)
2445 {
2446 if (mem_prealloc) {
2447 QObject *smp = qdict_get(machine_opts_dict, "smp");
2448 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2449 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2450 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2451 const char *val = qstring_get_str(qobject_to(QString, cpus));
2452 object_register_sugar_prop("memory-backend", "prealloc-threads",
2453 val, false);
2454 }
2455 }
2456 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2457 }
2458 }
2459
2460 /* -action processing */
2461
2462 /*
2463 * Process all the -action parameters parsed from cmdline.
2464 */
2465 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2466 {
2467 Error *local_err = NULL;
2468 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2469 QObject *ret = NULL;
2470 qmp_marshal_set_action(qdict, &ret, &local_err);
2471 qobject_unref(ret);
2472 qobject_unref(qdict);
2473 if (local_err) {
2474 error_propagate(errp, local_err);
2475 return 1;
2476 }
2477 return 0;
2478 }
2479
2480 static void qemu_process_early_options(void)
2481 {
2482 qemu_opts_foreach(qemu_find_opts("name"),
2483 parse_name, NULL, &error_fatal);
2484
2485 object_option_foreach_add(object_create_pre_sandbox);
2486
2487 #ifdef CONFIG_SECCOMP
2488 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2489 if (olist) {
2490 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2491 }
2492 #endif
2493
2494 if (qemu_opts_foreach(qemu_find_opts("action"),
2495 process_runstate_actions, NULL, &error_fatal)) {
2496 exit(1);
2497 }
2498
2499 #ifndef _WIN32
2500 qemu_opts_foreach(qemu_find_opts("add-fd"),
2501 parse_add_fd, NULL, &error_fatal);
2502
2503 qemu_opts_foreach(qemu_find_opts("add-fd"),
2504 cleanup_add_fd, NULL, &error_fatal);
2505 #endif
2506
2507 /* Open the logfile at this point and set the log mask if necessary. */
2508 {
2509 int mask = 0;
2510 if (log_mask) {
2511 mask = qemu_str_to_log_mask(log_mask);
2512 if (!mask) {
2513 qemu_print_log_usage(stdout);
2514 exit(1);
2515 }
2516 }
2517 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2518 }
2519
2520 qemu_add_default_firmwarepath();
2521 }
2522
2523 static void qemu_process_help_options(void)
2524 {
2525 /*
2526 * Check for -cpu help and -device help before we call select_machine(),
2527 * which will return an error if the architecture has no default machine
2528 * type and the user did not specify one, so that the user doesn't need
2529 * to say '-cpu help -machine something'.
2530 */
2531 if (cpu_option && is_help_option(cpu_option)) {
2532 list_cpus();
2533 exit(0);
2534 }
2535
2536 if (qemu_opts_foreach(qemu_find_opts("device"),
2537 device_help_func, NULL, NULL)) {
2538 exit(0);
2539 }
2540
2541 /* -L help lists the data directories and exits. */
2542 if (list_data_dirs) {
2543 qemu_list_data_dirs();
2544 exit(0);
2545 }
2546 }
2547
2548 static void qemu_maybe_daemonize(const char *pid_file)
2549 {
2550 Error *err = NULL;
2551
2552 os_daemonize();
2553 rcu_disable_atfork();
2554
2555 if (pid_file) {
2556 char *pid_file_realpath = NULL;
2557
2558 if (!qemu_write_pidfile(pid_file, &err)) {
2559 error_reportf_err(err, "cannot create PID file: ");
2560 exit(1);
2561 }
2562
2563 pid_file_realpath = g_malloc0(PATH_MAX);
2564 if (!realpath(pid_file, pid_file_realpath)) {
2565 if (errno != ENOENT) {
2566 warn_report("not removing PID file on exit: cannot resolve PID "
2567 "file path: %s: %s", pid_file, strerror(errno));
2568 }
2569 return;
2570 }
2571
2572 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2573 .notifier = {
2574 .notify = qemu_unlink_pidfile,
2575 },
2576 .pid_file_realpath = pid_file_realpath,
2577 };
2578 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2579 }
2580 }
2581
2582 static void qemu_init_displays(void)
2583 {
2584 DisplayState *ds;
2585
2586 /* init local displays */
2587 ds = init_displaystate();
2588 qemu_display_init(ds, &dpy);
2589
2590 /* must be after terminal init, SDL library changes signal handlers */
2591 os_setup_signal_handling();
2592
2593 /* init remote displays */
2594 #ifdef CONFIG_VNC
2595 qemu_opts_foreach(qemu_find_opts("vnc"),
2596 vnc_init_func, NULL, &error_fatal);
2597 #endif
2598
2599 if (using_spice) {
2600 qemu_spice.display_init();
2601 }
2602 }
2603
2604 static void qemu_init_board(void)
2605 {
2606 /* process plugin before CPUs are created, but once -smp has been parsed */
2607 qemu_plugin_load_list(&plugin_list, &error_fatal);
2608
2609 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2610 machine_run_board_init(current_machine, mem_path, &error_fatal);
2611
2612 drive_check_orphaned();
2613
2614 realtime_init();
2615 }
2616
2617 static void qemu_create_cli_devices(void)
2618 {
2619 DeviceOption *opt;
2620
2621 soundhw_init();
2622
2623 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2624 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2625
2626 /* init USB devices */
2627 if (machine_usb(current_machine)) {
2628 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2629 exit(1);
2630 }
2631
2632 /* init generic devices */
2633 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2634 qemu_opts_foreach(qemu_find_opts("device"),
2635 device_init_func, NULL, &error_fatal);
2636 QTAILQ_FOREACH(opt, &device_opts, next) {
2637 DeviceState *dev;
2638 loc_push_restore(&opt->loc);
2639 /*
2640 * TODO Eventually we should call qmp_device_add() here to make sure it
2641 * behaves the same, but QMP still has to accept incorrectly typed
2642 * options until libvirt is fixed and we want to be strict on the CLI
2643 * from the start, so call qdev_device_add_from_qdict() directly for
2644 * now.
2645 */
2646 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2647 object_unref(OBJECT(dev));
2648 loc_pop(&opt->loc);
2649 }
2650 rom_reset_order_override();
2651 }
2652
2653 static void qemu_machine_creation_done(void)
2654 {
2655 MachineState *machine = MACHINE(qdev_get_machine());
2656
2657 /* Did we create any drives that we failed to create a device for? */
2658 drive_check_orphaned();
2659
2660 /* Don't warn about the default network setup that you get if
2661 * no command line -net or -netdev options are specified. There
2662 * are two cases that we would otherwise complain about:
2663 * (1) board doesn't support a NIC but the implicit "-net nic"
2664 * requested one
2665 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2666 * sets up a nic that isn't connected to anything.
2667 */
2668 if (!default_net && (!qtest_enabled() || has_defaults)) {
2669 net_check_clients();
2670 }
2671
2672 qdev_prop_check_globals();
2673
2674 qdev_machine_creation_done();
2675
2676 if (machine->cgs) {
2677 /*
2678 * Verify that Confidential Guest Support has actually been initialized
2679 */
2680 assert(machine->cgs->ready);
2681 }
2682
2683 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2684 exit(1);
2685 }
2686 if (!vga_interface_created && !default_vga &&
2687 vga_interface_type != VGA_NONE) {
2688 warn_report("A -vga option was passed but this machine "
2689 "type does not use that option; "
2690 "No VGA device has been created");
2691 }
2692 }
2693
2694 void qmp_x_exit_preconfig(Error **errp)
2695 {
2696 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2697 error_setg(errp, "The command is permitted only before machine initialization");
2698 return;
2699 }
2700
2701 qemu_init_board();
2702 qemu_create_cli_devices();
2703 qemu_machine_creation_done();
2704
2705 if (loadvm) {
2706 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2707 }
2708 if (replay_mode != REPLAY_MODE_NONE) {
2709 replay_vmstate_init();
2710 }
2711
2712 if (incoming) {
2713 Error *local_err = NULL;
2714 if (strcmp(incoming, "defer") != 0) {
2715 qmp_migrate_incoming(incoming, false, NULL, &local_err);
2716 if (local_err) {
2717 error_reportf_err(local_err, "-incoming %s: ", incoming);
2718 exit(1);
2719 }
2720 }
2721 } else if (autostart) {
2722 qmp_cont(NULL);
2723 }
2724 }
2725
2726 void qemu_init(int argc, char **argv)
2727 {
2728 QemuOpts *opts;
2729 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2730 QemuOptsList *olist;
2731 int optind;
2732 const char *optarg;
2733 MachineClass *machine_class;
2734 bool userconfig = true;
2735 FILE *vmstate_dump_file = NULL;
2736
2737 qemu_add_opts(&qemu_drive_opts);
2738 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2739 qemu_add_drive_opts(&qemu_common_drive_opts);
2740 qemu_add_drive_opts(&qemu_drive_opts);
2741 qemu_add_drive_opts(&bdrv_runtime_opts);
2742 qemu_add_opts(&qemu_chardev_opts);
2743 qemu_add_opts(&qemu_device_opts);
2744 qemu_add_opts(&qemu_netdev_opts);
2745 qemu_add_opts(&qemu_nic_opts);
2746 qemu_add_opts(&qemu_net_opts);
2747 qemu_add_opts(&qemu_rtc_opts);
2748 qemu_add_opts(&qemu_global_opts);
2749 qemu_add_opts(&qemu_mon_opts);
2750 qemu_add_opts(&qemu_trace_opts);
2751 qemu_plugin_add_opts();
2752 qemu_add_opts(&qemu_option_rom_opts);
2753 qemu_add_opts(&qemu_accel_opts);
2754 qemu_add_opts(&qemu_mem_opts);
2755 qemu_add_opts(&qemu_smp_opts);
2756 qemu_add_opts(&qemu_boot_opts);
2757 qemu_add_opts(&qemu_add_fd_opts);
2758 qemu_add_opts(&qemu_object_opts);
2759 qemu_add_opts(&qemu_tpmdev_opts);
2760 qemu_add_opts(&qemu_overcommit_opts);
2761 qemu_add_opts(&qemu_msg_opts);
2762 qemu_add_opts(&qemu_name_opts);
2763 qemu_add_opts(&qemu_numa_opts);
2764 qemu_add_opts(&qemu_icount_opts);
2765 qemu_add_opts(&qemu_semihosting_config_opts);
2766 qemu_add_opts(&qemu_fw_cfg_opts);
2767 qemu_add_opts(&qemu_action_opts);
2768 qemu_add_run_with_opts();
2769 module_call_init(MODULE_INIT_OPTS);
2770
2771 error_init(argv[0]);
2772 qemu_init_exec_dir(argv[0]);
2773
2774 qemu_init_arch_modules();
2775
2776 qemu_init_subsystems();
2777
2778 /* first pass of option parsing */
2779 optind = 1;
2780 while (optind < argc) {
2781 if (argv[optind][0] != '-') {
2782 /* disk image */
2783 optind++;
2784 } else {
2785 const QEMUOption *popt;
2786
2787 popt = lookup_opt(argc, argv, &optarg, &optind);
2788 switch (popt->index) {
2789 case QEMU_OPTION_nouserconfig:
2790 userconfig = false;
2791 break;
2792 }
2793 }
2794 }
2795
2796 machine_opts_dict = qdict_new();
2797 if (userconfig) {
2798 qemu_read_default_config_file(&error_fatal);
2799 }
2800
2801 /* second pass of option parsing */
2802 optind = 1;
2803 for(;;) {
2804 if (optind >= argc)
2805 break;
2806 if (argv[optind][0] != '-') {
2807 loc_set_cmdline(argv, optind, 1);
2808 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2809 } else {
2810 const QEMUOption *popt;
2811
2812 popt = lookup_opt(argc, argv, &optarg, &optind);
2813 if (!(popt->arch_mask & arch_type)) {
2814 error_report("Option not supported for this target");
2815 exit(1);
2816 }
2817 switch(popt->index) {
2818 case QEMU_OPTION_cpu:
2819 /* hw initialization will check this */
2820 cpu_option = optarg;
2821 break;
2822 case QEMU_OPTION_hda:
2823 case QEMU_OPTION_hdb:
2824 case QEMU_OPTION_hdc:
2825 case QEMU_OPTION_hdd:
2826 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2827 HD_OPTS);
2828 break;
2829 case QEMU_OPTION_blockdev:
2830 {
2831 Visitor *v;
2832 BlockdevOptionsQueueEntry *bdo;
2833
2834 v = qobject_input_visitor_new_str(optarg, "driver",
2835 &error_fatal);
2836
2837 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2838 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2839 &error_fatal);
2840 visit_free(v);
2841 loc_save(&bdo->loc);
2842 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2843 break;
2844 }
2845 case QEMU_OPTION_drive:
2846 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2847 optarg, false);
2848 if (opts == NULL) {
2849 exit(1);
2850 }
2851 break;
2852 case QEMU_OPTION_set:
2853 qemu_set_option(optarg, &error_fatal);
2854 break;
2855 case QEMU_OPTION_global:
2856 if (qemu_global_option(optarg) != 0)
2857 exit(1);
2858 break;
2859 case QEMU_OPTION_mtdblock:
2860 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2861 break;
2862 case QEMU_OPTION_sd:
2863 drive_add(IF_SD, -1, optarg, SD_OPTS);
2864 break;
2865 case QEMU_OPTION_pflash:
2866 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2867 break;
2868 case QEMU_OPTION_snapshot:
2869 snapshot = 1;
2870 replay_add_blocker("-snapshot");
2871 break;
2872 case QEMU_OPTION_numa:
2873 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2874 optarg, true);
2875 if (!opts) {
2876 exit(1);
2877 }
2878 break;
2879 case QEMU_OPTION_display:
2880 parse_display(optarg);
2881 break;
2882 case QEMU_OPTION_nographic:
2883 qdict_put_str(machine_opts_dict, "graphics", "off");
2884 nographic = true;
2885 dpy.type = DISPLAY_TYPE_NONE;
2886 break;
2887 case QEMU_OPTION_portrait:
2888 graphic_rotate = 90;
2889 break;
2890 case QEMU_OPTION_rotate:
2891 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2892 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2893 graphic_rotate != 180 && graphic_rotate != 270) {
2894 error_report("only 90, 180, 270 deg rotation is available");
2895 exit(1);
2896 }
2897 break;
2898 case QEMU_OPTION_kernel:
2899 qdict_put_str(machine_opts_dict, "kernel", optarg);
2900 break;
2901 case QEMU_OPTION_initrd:
2902 qdict_put_str(machine_opts_dict, "initrd", optarg);
2903 break;
2904 case QEMU_OPTION_append:
2905 qdict_put_str(machine_opts_dict, "append", optarg);
2906 break;
2907 case QEMU_OPTION_dtb:
2908 qdict_put_str(machine_opts_dict, "dtb", optarg);
2909 break;
2910 case QEMU_OPTION_cdrom:
2911 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2912 break;
2913 case QEMU_OPTION_boot:
2914 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2915 break;
2916 case QEMU_OPTION_fda:
2917 case QEMU_OPTION_fdb:
2918 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2919 optarg, FD_OPTS);
2920 break;
2921 case QEMU_OPTION_no_fd_bootchk:
2922 fd_bootchk = 0;
2923 break;
2924 case QEMU_OPTION_netdev:
2925 default_net = 0;
2926 if (netdev_is_modern(optarg)) {
2927 netdev_parse_modern(optarg);
2928 } else {
2929 net_client_parse(qemu_find_opts("netdev"), optarg);
2930 }
2931 break;
2932 case QEMU_OPTION_nic:
2933 default_net = 0;
2934 net_client_parse(qemu_find_opts("nic"), optarg);
2935 break;
2936 case QEMU_OPTION_net:
2937 default_net = 0;
2938 net_client_parse(qemu_find_opts("net"), optarg);
2939 break;
2940 #ifdef CONFIG_LIBISCSI
2941 case QEMU_OPTION_iscsi:
2942 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2943 optarg, false);
2944 if (!opts) {
2945 exit(1);
2946 }
2947 break;
2948 #endif
2949 case QEMU_OPTION_audiodev:
2950 default_audio = 0;
2951 audio_parse_option(optarg);
2952 break;
2953 case QEMU_OPTION_audio: {
2954 bool help;
2955 char *model = NULL;
2956 Audiodev *dev = NULL;
2957 Visitor *v;
2958 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2959 default_audio = 0;
2960 if (help || (qdict_haskey(dict, "driver") &&
2961 is_help_option(qdict_get_str(dict, "driver")))) {
2962 audio_help();
2963 exit(EXIT_SUCCESS);
2964 }
2965 if (!qdict_haskey(dict, "id")) {
2966 qdict_put_str(dict, "id", "audiodev0");
2967 }
2968 if (qdict_haskey(dict, "model")) {
2969 model = g_strdup(qdict_get_str(dict, "model"));
2970 qdict_del(dict, "model");
2971 if (is_help_option(model)) {
2972 show_valid_soundhw();
2973 exit(0);
2974 }
2975 }
2976 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2977 qobject_unref(dict);
2978 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2979 visit_free(v);
2980 if (model) {
2981 audio_define(dev);
2982 select_soundhw(model, dev->id);
2983 g_free(model);
2984 } else {
2985 audio_define_default(dev, &error_fatal);
2986 }
2987 break;
2988 }
2989 case QEMU_OPTION_h:
2990 help(0);
2991 break;
2992 case QEMU_OPTION_version:
2993 version();
2994 exit(0);
2995 break;
2996 case QEMU_OPTION_m:
2997 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
2998 if (opts == NULL) {
2999 exit(1);
3000 }
3001 break;
3002 #ifdef CONFIG_TPM
3003 case QEMU_OPTION_tpmdev:
3004 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3005 exit(1);
3006 }
3007 break;
3008 #endif
3009 case QEMU_OPTION_mempath:
3010 mem_path = optarg;
3011 break;
3012 case QEMU_OPTION_mem_prealloc:
3013 mem_prealloc = 1;
3014 break;
3015 case QEMU_OPTION_d:
3016 log_mask = optarg;
3017 break;
3018 case QEMU_OPTION_D:
3019 log_file = optarg;
3020 break;
3021 case QEMU_OPTION_DFILTER:
3022 qemu_set_dfilter_ranges(optarg, &error_fatal);
3023 break;
3024 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3025 case QEMU_OPTION_perfmap:
3026 perf_enable_perfmap();
3027 break;
3028 case QEMU_OPTION_jitdump:
3029 perf_enable_jitdump();
3030 break;
3031 #endif
3032 case QEMU_OPTION_seed:
3033 qemu_guest_random_seed_main(optarg, &error_fatal);
3034 break;
3035 case QEMU_OPTION_s:
3036 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3037 break;
3038 case QEMU_OPTION_gdb:
3039 add_device_config(DEV_GDB, optarg);
3040 break;
3041 case QEMU_OPTION_L:
3042 if (is_help_option(optarg)) {
3043 list_data_dirs = true;
3044 } else {
3045 qemu_add_data_dir(g_strdup(optarg));
3046 }
3047 break;
3048 case QEMU_OPTION_bios:
3049 qdict_put_str(machine_opts_dict, "firmware", optarg);
3050 break;
3051 case QEMU_OPTION_singlestep:
3052 opt_one_insn_per_tb = true;
3053 break;
3054 case QEMU_OPTION_S:
3055 autostart = 0;
3056 break;
3057 case QEMU_OPTION_k:
3058 keyboard_layout = optarg;
3059 break;
3060 case QEMU_OPTION_vga:
3061 vga_model = optarg;
3062 default_vga = 0;
3063 break;
3064 case QEMU_OPTION_g:
3065 {
3066 const char *p;
3067 int w, h, depth;
3068 p = optarg;
3069 w = strtol(p, (char **)&p, 10);
3070 if (w <= 0) {
3071 graphic_error:
3072 error_report("invalid resolution or depth");
3073 exit(1);
3074 }
3075 if (*p != 'x')
3076 goto graphic_error;
3077 p++;
3078 h = strtol(p, (char **)&p, 10);
3079 if (h <= 0)
3080 goto graphic_error;
3081 if (*p == 'x') {
3082 p++;
3083 depth = strtol(p, (char **)&p, 10);
3084 if (depth != 1 && depth != 2 && depth != 4 &&
3085 depth != 8 && depth != 15 && depth != 16 &&
3086 depth != 24 && depth != 32)
3087 goto graphic_error;
3088 } else if (*p == '\0') {
3089 depth = graphic_depth;
3090 } else {
3091 goto graphic_error;
3092 }
3093
3094 graphic_width = w;
3095 graphic_height = h;
3096 graphic_depth = depth;
3097 }
3098 break;
3099 case QEMU_OPTION_echr:
3100 {
3101 char *r;
3102 term_escape_char = strtol(optarg, &r, 0);
3103 if (r == optarg)
3104 printf("Bad argument to echr\n");
3105 break;
3106 }
3107 case QEMU_OPTION_monitor:
3108 default_monitor = 0;
3109 if (strncmp(optarg, "none", 4)) {
3110 monitor_parse(optarg, "readline", false);
3111 }
3112 break;
3113 case QEMU_OPTION_qmp:
3114 monitor_parse(optarg, "control", false);
3115 default_monitor = 0;
3116 break;
3117 case QEMU_OPTION_qmp_pretty:
3118 monitor_parse(optarg, "control", true);
3119 default_monitor = 0;
3120 break;
3121 case QEMU_OPTION_mon:
3122 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3123 true);
3124 if (!opts) {
3125 exit(1);
3126 }
3127 default_monitor = 0;
3128 break;
3129 case QEMU_OPTION_chardev:
3130 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3131 optarg, true);
3132 if (!opts) {
3133 exit(1);
3134 }
3135 break;
3136 case QEMU_OPTION_fsdev:
3137 olist = qemu_find_opts("fsdev");
3138 if (!olist) {
3139 error_report("fsdev support is disabled");
3140 exit(1);
3141 }
3142 opts = qemu_opts_parse_noisily(olist, optarg, true);
3143 if (!opts) {
3144 exit(1);
3145 }
3146 break;
3147 case QEMU_OPTION_virtfs: {
3148 QemuOpts *fsdev;
3149 QemuOpts *device;
3150 const char *writeout, *sock_fd, *socket, *path, *security_model,
3151 *multidevs;
3152
3153 olist = qemu_find_opts("virtfs");
3154 if (!olist) {
3155 error_report("virtfs support is disabled");
3156 exit(1);
3157 }
3158 opts = qemu_opts_parse_noisily(olist, optarg, true);
3159 if (!opts) {
3160 exit(1);
3161 }
3162
3163 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3164 qemu_opt_get(opts, "mount_tag") == NULL) {
3165 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3166 exit(1);
3167 }
3168 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3169 qemu_opts_id(opts) ?:
3170 qemu_opt_get(opts, "mount_tag"),
3171 1, NULL);
3172 if (!fsdev) {
3173 error_report("duplicate or invalid fsdev id: %s",
3174 qemu_opt_get(opts, "mount_tag"));
3175 exit(1);
3176 }
3177
3178 writeout = qemu_opt_get(opts, "writeout");
3179 if (writeout) {
3180 #ifdef CONFIG_SYNC_FILE_RANGE
3181 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3182 #else
3183 error_report("writeout=immediate not supported "
3184 "on this platform");
3185 exit(1);
3186 #endif
3187 }
3188 qemu_opt_set(fsdev, "fsdriver",
3189 qemu_opt_get(opts, "fsdriver"), &error_abort);
3190 path = qemu_opt_get(opts, "path");
3191 if (path) {
3192 qemu_opt_set(fsdev, "path", path, &error_abort);
3193 }
3194 security_model = qemu_opt_get(opts, "security_model");
3195 if (security_model) {
3196 qemu_opt_set(fsdev, "security_model", security_model,
3197 &error_abort);
3198 }
3199 socket = qemu_opt_get(opts, "socket");
3200 if (socket) {
3201 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3202 }
3203 sock_fd = qemu_opt_get(opts, "sock_fd");
3204 if (sock_fd) {
3205 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3206 }
3207
3208 qemu_opt_set_bool(fsdev, "readonly",
3209 qemu_opt_get_bool(opts, "readonly", 0),
3210 &error_abort);
3211 multidevs = qemu_opt_get(opts, "multidevs");
3212 if (multidevs) {
3213 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3214 }
3215 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3216 &error_abort);
3217 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3218 qemu_opt_set(device, "fsdev",
3219 qemu_opts_id(fsdev), &error_abort);
3220 qemu_opt_set(device, "mount_tag",
3221 qemu_opt_get(opts, "mount_tag"), &error_abort);
3222 break;
3223 }
3224 case QEMU_OPTION_serial:
3225 add_device_config(DEV_SERIAL, optarg);
3226 default_serial = 0;
3227 if (strncmp(optarg, "mon:", 4) == 0) {
3228 default_monitor = 0;
3229 }
3230 break;
3231 case QEMU_OPTION_action:
3232 olist = qemu_find_opts("action");
3233 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3234 exit(1);
3235 }
3236 break;
3237 case QEMU_OPTION_watchdog_action: {
3238 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3239 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3240 break;
3241 }
3242 case QEMU_OPTION_parallel:
3243 add_device_config(DEV_PARALLEL, optarg);
3244 default_parallel = 0;
3245 if (strncmp(optarg, "mon:", 4) == 0) {
3246 default_monitor = 0;
3247 }
3248 break;
3249 case QEMU_OPTION_debugcon:
3250 add_device_config(DEV_DEBUGCON, optarg);
3251 break;
3252 case QEMU_OPTION_loadvm:
3253 loadvm = optarg;
3254 break;
3255 case QEMU_OPTION_full_screen:
3256 dpy.has_full_screen = true;
3257 dpy.full_screen = true;
3258 break;
3259 case QEMU_OPTION_pidfile:
3260 pid_file = optarg;
3261 break;
3262 case QEMU_OPTION_win2k_hack:
3263 win2k_install_hack = 1;
3264 break;
3265 case QEMU_OPTION_acpitable:
3266 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3267 optarg, true);
3268 if (!opts) {
3269 exit(1);
3270 }
3271 acpi_table_add(opts, &error_fatal);
3272 break;
3273 case QEMU_OPTION_smbios:
3274 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3275 optarg, false);
3276 if (!opts) {
3277 exit(1);
3278 }
3279 smbios_entry_add(opts, &error_fatal);
3280 break;
3281 case QEMU_OPTION_fwcfg:
3282 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3283 optarg, true);
3284 if (opts == NULL) {
3285 exit(1);
3286 }
3287 break;
3288 case QEMU_OPTION_preconfig:
3289 preconfig_requested = true;
3290 break;
3291 case QEMU_OPTION_enable_kvm:
3292 qdict_put_str(machine_opts_dict, "accel", "kvm");
3293 break;
3294 case QEMU_OPTION_M:
3295 case QEMU_OPTION_machine:
3296 {
3297 bool help;
3298
3299 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3300 if (help) {
3301 machine_help_func(machine_opts_dict);
3302 exit(EXIT_SUCCESS);
3303 }
3304 break;
3305 }
3306 case QEMU_OPTION_accel:
3307 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3308 optarg, true);
3309 optarg = qemu_opt_get(accel_opts, "accel");
3310 if (!optarg || is_help_option(optarg)) {
3311 printf("Accelerators supported in QEMU binary:\n");
3312 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3313 false);
3314 for (el = accel_list; el; el = el->next) {
3315 gchar *typename = g_strdup(object_class_get_name(
3316 OBJECT_CLASS(el->data)));
3317 /* omit qtest which is used for tests only */
3318 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3319 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3320 gchar **optname = g_strsplit(typename,
3321 ACCEL_CLASS_SUFFIX, 0);
3322 printf("%s\n", optname[0]);
3323 g_strfreev(optname);
3324 }
3325 g_free(typename);
3326 }
3327 g_slist_free(accel_list);
3328 exit(0);
3329 }
3330 break;
3331 case QEMU_OPTION_usb:
3332 qdict_put_str(machine_opts_dict, "usb", "on");
3333 break;
3334 case QEMU_OPTION_usbdevice:
3335 qdict_put_str(machine_opts_dict, "usb", "on");
3336 add_device_config(DEV_USB, optarg);
3337 break;
3338 case QEMU_OPTION_device:
3339 if (optarg[0] == '{') {
3340 QObject *obj = qobject_from_json(optarg, &error_fatal);
3341 DeviceOption *opt = g_new0(DeviceOption, 1);
3342 opt->opts = qobject_to(QDict, obj);
3343 loc_save(&opt->loc);
3344 assert(opt->opts != NULL);
3345 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3346 } else {
3347 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3348 optarg, true)) {
3349 exit(1);
3350 }
3351 }
3352 break;
3353 case QEMU_OPTION_smp:
3354 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3355 "smp", optarg);
3356 break;
3357 #ifdef CONFIG_VNC
3358 case QEMU_OPTION_vnc:
3359 vnc_parse(optarg);
3360 display_remote++;
3361 break;
3362 #endif
3363 case QEMU_OPTION_no_acpi:
3364 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3365 qdict_put_str(machine_opts_dict, "acpi", "off");
3366 break;
3367 case QEMU_OPTION_no_hpet:
3368 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3369 qdict_put_str(machine_opts_dict, "hpet", "off");
3370 break;
3371 case QEMU_OPTION_no_reboot:
3372 olist = qemu_find_opts("action");
3373 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3374 break;
3375 case QEMU_OPTION_no_shutdown:
3376 olist = qemu_find_opts("action");
3377 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3378 break;
3379 case QEMU_OPTION_uuid:
3380 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3381 error_report("failed to parse UUID string: wrong format");
3382 exit(1);
3383 }
3384 qemu_uuid_set = true;
3385 break;
3386 case QEMU_OPTION_option_rom:
3387 if (nb_option_roms >= MAX_OPTION_ROMS) {
3388 error_report("too many option ROMs");
3389 exit(1);
3390 }
3391 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3392 optarg, true);
3393 if (!opts) {
3394 exit(1);
3395 }
3396 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3397 option_rom[nb_option_roms].bootindex =
3398 qemu_opt_get_number(opts, "bootindex", -1);
3399 if (!option_rom[nb_option_roms].name) {
3400 error_report("Option ROM file is not specified");
3401 exit(1);
3402 }
3403 nb_option_roms++;
3404 break;
3405 case QEMU_OPTION_semihosting:
3406 qemu_semihosting_enable();
3407 break;
3408 case QEMU_OPTION_semihosting_config:
3409 if (qemu_semihosting_config_options(optarg) != 0) {
3410 exit(1);
3411 }
3412 break;
3413 case QEMU_OPTION_name:
3414 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3415 optarg, true);
3416 if (!opts) {
3417 exit(1);
3418 }
3419 /* Capture guest name if -msg guest-name is used later */
3420 error_guest_name = qemu_opt_get(opts, "guest");
3421 break;
3422 case QEMU_OPTION_prom_env:
3423 if (nb_prom_envs >= MAX_PROM_ENVS) {
3424 error_report("too many prom variables");
3425 exit(1);
3426 }
3427 prom_envs[nb_prom_envs] = optarg;
3428 nb_prom_envs++;
3429 break;
3430 case QEMU_OPTION_old_param:
3431 old_param = 1;
3432 break;
3433 case QEMU_OPTION_rtc:
3434 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3435 false);
3436 if (!opts) {
3437 exit(1);
3438 }
3439 break;
3440 case QEMU_OPTION_icount:
3441 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3442 optarg, true);
3443 if (!icount_opts) {
3444 exit(1);
3445 }
3446 break;
3447 case QEMU_OPTION_incoming:
3448 if (!incoming) {
3449 runstate_set(RUN_STATE_INMIGRATE);
3450 }
3451 incoming = optarg;
3452 break;
3453 case QEMU_OPTION_only_migratable:
3454 only_migratable = 1;
3455 break;
3456 case QEMU_OPTION_nodefaults:
3457 has_defaults = 0;
3458 break;
3459 case QEMU_OPTION_xen_domid:
3460 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3461 error_report("Option not supported for this target");
3462 exit(1);
3463 }
3464 xen_domid = atoi(optarg);
3465 break;
3466 case QEMU_OPTION_xen_attach:
3467 if (!(accel_find("xen"))) {
3468 error_report("Option not supported for this target");
3469 exit(1);
3470 }
3471 xen_mode = XEN_ATTACH;
3472 break;
3473 case QEMU_OPTION_xen_domid_restrict:
3474 if (!(accel_find("xen"))) {
3475 error_report("Option not supported for this target");
3476 exit(1);
3477 }
3478 xen_domid_restrict = true;
3479 break;
3480 case QEMU_OPTION_trace:
3481 trace_opt_parse(optarg);
3482 break;
3483 case QEMU_OPTION_plugin:
3484 qemu_plugin_opt_parse(optarg, &plugin_list);
3485 break;
3486 case QEMU_OPTION_readconfig:
3487 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3488 break;
3489 #ifdef CONFIG_SPICE
3490 case QEMU_OPTION_spice:
3491 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false);
3492 if (!opts) {
3493 exit(1);
3494 }
3495 display_remote++;
3496 break;
3497 #endif
3498 case QEMU_OPTION_qtest:
3499 qtest_chrdev = optarg;
3500 break;
3501 case QEMU_OPTION_qtest_log:
3502 qtest_log = optarg;
3503 break;
3504 case QEMU_OPTION_sandbox:
3505 olist = qemu_find_opts("sandbox");
3506 if (!olist) {
3507 #ifndef CONFIG_SECCOMP
3508 error_report("-sandbox support is not enabled "
3509 "in this QEMU binary");
3510 #endif
3511 exit(1);
3512 }
3513
3514 opts = qemu_opts_parse_noisily(olist, optarg, true);
3515 if (!opts) {
3516 exit(1);
3517 }
3518 break;
3519 case QEMU_OPTION_add_fd:
3520 #ifndef _WIN32
3521 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3522 optarg, false);
3523 if (!opts) {
3524 exit(1);
3525 }
3526 #else
3527 error_report("File descriptor passing is disabled on this "
3528 "platform");
3529 exit(1);
3530 #endif
3531 break;
3532 case QEMU_OPTION_object:
3533 object_option_parse(optarg);
3534 break;
3535 case QEMU_OPTION_overcommit:
3536 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3537 optarg, false);
3538 if (!opts) {
3539 exit(1);
3540 }
3541 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3542 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3543 break;
3544 case QEMU_OPTION_compat:
3545 {
3546 CompatPolicy *opts_policy;
3547 Visitor *v;
3548
3549 v = qobject_input_visitor_new_str(optarg, NULL,
3550 &error_fatal);
3551
3552 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3553 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3554
3555 qapi_free_CompatPolicy(opts_policy);
3556 visit_free(v);
3557 break;
3558 }
3559 case QEMU_OPTION_msg:
3560 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3561 false);
3562 if (!opts) {
3563 exit(1);
3564 }
3565 configure_msg(opts);
3566 break;
3567 case QEMU_OPTION_dump_vmstate:
3568 if (vmstate_dump_file) {
3569 error_report("only one '-dump-vmstate' "
3570 "option may be given");
3571 exit(1);
3572 }
3573 vmstate_dump_file = fopen(optarg, "w");
3574 if (vmstate_dump_file == NULL) {
3575 error_report("open %s: %s", optarg, strerror(errno));
3576 exit(1);
3577 }
3578 break;
3579 case QEMU_OPTION_enable_sync_profile:
3580 qsp_enable();
3581 break;
3582 case QEMU_OPTION_nouserconfig:
3583 /* Nothing to be parsed here. Especially, do not error out below. */
3584 break;
3585 #if defined(CONFIG_POSIX)
3586 case QEMU_OPTION_runas:
3587 if (!os_set_runas(optarg)) {
3588 error_report("User \"%s\" doesn't exist"
3589 " (and is not <uid>:<gid>)",
3590 optarg);
3591 exit(1);
3592 }
3593 break;
3594 case QEMU_OPTION_chroot:
3595 warn_report("option is deprecated,"
3596 " use '-run-with chroot=...' instead");
3597 os_set_chroot(optarg);
3598 break;
3599 case QEMU_OPTION_daemonize:
3600 os_set_daemonize(true);
3601 break;
3602 #if defined(CONFIG_LINUX)
3603 /* deprecated */
3604 case QEMU_OPTION_asyncteardown:
3605 init_async_teardown();
3606 break;
3607 #endif
3608 case QEMU_OPTION_run_with: {
3609 const char *str;
3610 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3611 optarg, false);
3612 if (!opts) {
3613 exit(1);
3614 }
3615 #if defined(CONFIG_LINUX)
3616 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3617 init_async_teardown();
3618 }
3619 #endif
3620 str = qemu_opt_get(opts, "chroot");
3621 if (str) {
3622 os_set_chroot(str);
3623 }
3624 break;
3625 }
3626 #endif /* CONFIG_POSIX */
3627
3628 default:
3629 error_report("Option not supported in this build");
3630 exit(1);
3631 }
3632 }
3633 }
3634 /*
3635 * Clear error location left behind by the loop.
3636 * Best done right after the loop. Do not insert code here!
3637 */
3638 loc_set_none();
3639
3640 qemu_validate_options(machine_opts_dict);
3641 qemu_process_sugar_options();
3642
3643 /*
3644 * These options affect everything else and should be processed
3645 * before daemonizing.
3646 */
3647 qemu_process_early_options();
3648
3649 qemu_process_help_options();
3650 qemu_maybe_daemonize(pid_file);
3651
3652 /*
3653 * The trace backend must be initialized after daemonizing.
3654 * trace_init_backends() will call st_init(), which will create the
3655 * trace thread in the parent, and also register st_flush_trace_buffer()
3656 * in atexit(). This function will force the parent to wait for the
3657 * writeout thread to finish, which will not occur, and the parent
3658 * process will be left in the host.
3659 */
3660 if (!trace_init_backends()) {
3661 exit(1);
3662 }
3663 trace_init_file();
3664
3665 qemu_init_main_loop(&error_fatal);
3666 cpu_timers_init();
3667
3668 user_register_global_props();
3669 replay_configure(icount_opts);
3670
3671 configure_rtc(qemu_find_opts_singleton("rtc"));
3672
3673 /* Transfer QemuOpts options into machine options */
3674 parse_memory_options();
3675
3676 qemu_create_machine(machine_opts_dict);
3677
3678 suspend_mux_open();
3679
3680 qemu_disable_default_devices();
3681 qemu_setup_display();
3682 qemu_create_default_devices();
3683 qemu_create_early_backends();
3684
3685 qemu_apply_legacy_machine_options(machine_opts_dict);
3686 qemu_apply_machine_options(machine_opts_dict);
3687 qobject_unref(machine_opts_dict);
3688 phase_advance(PHASE_MACHINE_CREATED);
3689
3690 /*
3691 * Note: uses machine properties such as kernel-irqchip, must run
3692 * after qemu_apply_machine_options.
3693 */
3694 configure_accelerators(argv[0]);
3695 phase_advance(PHASE_ACCEL_CREATED);
3696
3697 /*
3698 * Beware, QOM objects created before this point miss global and
3699 * compat properties.
3700 *
3701 * Global properties get set up by qdev_prop_register_global(),
3702 * called from user_register_global_props(), and certain option
3703 * desugaring. Also in CPU feature desugaring (buried in
3704 * parse_cpu_option()), which happens below this point, but may
3705 * only target the CPU type, which can only be created after
3706 * parse_cpu_option() returned the type.
3707 *
3708 * Machine compat properties: object_set_machine_compat_props().
3709 * Accelerator compat props: object_set_accelerator_compat_props(),
3710 * called from do_configure_accelerator().
3711 */
3712
3713 machine_class = MACHINE_GET_CLASS(current_machine);
3714 if (!qtest_enabled() && machine_class->deprecation_reason) {
3715 warn_report("Machine type '%s' is deprecated: %s",
3716 machine_class->name, machine_class->deprecation_reason);
3717 }
3718
3719 /*
3720 * Create backends before creating migration objects, so that it can
3721 * check against compatibilities on the backend memories (e.g. postcopy
3722 * over memory-backend-file objects).
3723 */
3724 qemu_create_late_backends();
3725
3726 /*
3727 * Note: creates a QOM object, must run only after global and
3728 * compat properties have been set up.
3729 */
3730 migration_object_init();
3731
3732 /* parse features once if machine provides default cpu_type */
3733 current_machine->cpu_type = machine_class->default_cpu_type;
3734 if (cpu_option) {
3735 current_machine->cpu_type = parse_cpu_option(cpu_option);
3736 }
3737 /* NB: for machine none cpu_type could STILL be NULL here! */
3738
3739 qemu_resolve_machine_memdev();
3740 parse_numa_opts(current_machine);
3741
3742 if (vmstate_dump_file) {
3743 /* dump and exit */
3744 module_load_qom_all();
3745 dump_vmstate_json_to_file(vmstate_dump_file);
3746 exit(0);
3747 }
3748
3749 if (!preconfig_requested) {
3750 qmp_x_exit_preconfig(&error_fatal);
3751 }
3752 qemu_init_displays();
3753 accel_setup_post(current_machine);
3754 os_setup_post();
3755 resume_mux_open();
3756 }
armbru's QEMU hackery