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util/bufferiszero: Add simd acceleration for aarch64
[qemu/armbru.git] / system / vl.c
blob7756eac81e486e6c08c48b4e63f91b06fe8745c2
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 "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
185 static int has_defaults = 1;
186 static int default_audio = 1;
187 static int default_serial = 1;
188 static int default_parallel = 1;
189 static int default_monitor = 1;
190 static int default_floppy = 1;
191 static int default_cdrom = 1;
192 static int default_sdcard = 1;
193 static int default_vga = 1;
194 static int default_net = 1;
195
196 static const struct {
197 const char *driver;
198 int *flag;
199 } default_list[] = {
200 { .driver = "xen-console", .flag = &default_serial },
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 = "modules",
746 .type = QEMU_OPT_NUMBER,
747 }, {
748 .name = "cores",
749 .type = QEMU_OPT_NUMBER,
750 }, {
751 .name = "threads",
752 .type = QEMU_OPT_NUMBER,
753 }, {
754 .name = "maxcpus",
755 .type = QEMU_OPT_NUMBER,
756 },
757 { /*End of list */ }
758 },
759 };
760
761 #if defined(CONFIG_POSIX)
762 static QemuOptsList qemu_run_with_opts = {
763 .name = "run-with",
764 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
765 .desc = {
766 #if defined(CONFIG_LINUX)
767 {
768 .name = "async-teardown",
769 .type = QEMU_OPT_BOOL,
770 },
771 #endif
772 {
773 .name = "chroot",
774 .type = QEMU_OPT_STRING,
775 },
776 { /* end of list */ }
777 },
778 };
779
780 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
781
782 #else
783
784 #define qemu_add_run_with_opts()
785
786 #endif /* CONFIG_POSIX */
787
788 static void realtime_init(void)
789 {
790 if (enable_mlock) {
791 if (os_mlock() < 0) {
792 error_report("locking memory failed");
793 exit(1);
794 }
795 }
796 }
797
798
799 static void configure_msg(QemuOpts *opts)
800 {
801 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
802 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
803 }
804
805
806 /***********************************************************/
807 /* USB devices */
808
809 static int usb_device_add(const char *devname)
810 {
811 USBDevice *dev = NULL;
812
813 if (!machine_usb(current_machine)) {
814 return -1;
815 }
816
817 dev = usbdevice_create(devname);
818 if (!dev)
819 return -1;
820
821 return 0;
822 }
823
824 static int usb_parse(const char *cmdline)
825 {
826 int r;
827 r = usb_device_add(cmdline);
828 if (r < 0) {
829 error_report("could not add USB device '%s'", cmdline);
830 }
831 return r;
832 }
833
834 /***********************************************************/
835 /* machine registration */
836
837 static MachineClass *find_machine(const char *name, GSList *machines)
838 {
839 GSList *el;
840
841 for (el = machines; el; el = el->next) {
842 MachineClass *mc = el->data;
843
844 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
845 return mc;
846 }
847 }
848
849 return NULL;
850 }
851
852 static MachineClass *find_default_machine(GSList *machines)
853 {
854 GSList *el;
855 MachineClass *default_machineclass = NULL;
856
857 for (el = machines; el; el = el->next) {
858 MachineClass *mc = el->data;
859
860 if (mc->is_default) {
861 assert(default_machineclass == NULL && "Multiple default machines");
862 default_machineclass = mc;
863 }
864 }
865
866 return default_machineclass;
867 }
868
869 static void version(void)
870 {
871 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
872 QEMU_COPYRIGHT "\n");
873 }
874
875 static void help(int exitcode)
876 {
877 version();
878 printf("usage: %s [options] [disk_image]\n\n"
879 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
880 g_get_prgname());
881
882 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
883 if ((arch_mask) & arch_type) \
884 fputs(opt_help, stdout);
885
886 #define ARCHHEADING(text, arch_mask) \
887 if ((arch_mask) & arch_type) \
888 puts(stringify(text));
889
890 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
891
892 #include "qemu-options.def"
893
894 printf("\nDuring emulation, the following keys are useful:\n"
895 "ctrl-alt-f toggle full screen\n"
896 "ctrl-alt-n switch to virtual console 'n'\n"
897 "ctrl-alt-g toggle mouse and keyboard grab\n"
898 "\n"
899 "When using -nographic, press 'ctrl-a h' to get some help.\n"
900 "\n"
901 QEMU_HELP_BOTTOM "\n");
902
903 exit(exitcode);
904 }
905
906 enum {
907
908 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
909 opt_enum,
910 #define DEFHEADING(text)
911 #define ARCHHEADING(text, arch_mask)
912
913 #include "qemu-options.def"
914 };
915
916 #define HAS_ARG 0x0001
917
918 typedef struct QEMUOption {
919 const char *name;
920 int flags;
921 int index;
922 uint32_t arch_mask;
923 } QEMUOption;
924
925 static const QEMUOption qemu_options[] = {
926 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
927
928 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
929 { option, opt_arg, opt_enum, arch_mask },
930 #define DEFHEADING(text)
931 #define ARCHHEADING(text, arch_mask)
932
933 #include "qemu-options.def"
934 { /* end of list */ }
935 };
936
937 typedef struct VGAInterfaceInfo {
938 const char *opt_name; /* option name */
939 const char *name; /* human-readable name */
940 /* Class names indicating that support is available.
941 * If no class is specified, the interface is always available */
942 const char *class_names[2];
943 } VGAInterfaceInfo;
944
945 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
946 [VGA_NONE] = {
947 .opt_name = "none",
948 .name = "no graphic card",
949 },
950 [VGA_STD] = {
951 .opt_name = "std",
952 .name = "standard VGA",
953 .class_names = { "VGA", "isa-vga" },
954 },
955 [VGA_CIRRUS] = {
956 .opt_name = "cirrus",
957 .name = "Cirrus VGA",
958 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
959 },
960 [VGA_VMWARE] = {
961 .opt_name = "vmware",
962 .name = "VMWare SVGA",
963 .class_names = { "vmware-svga" },
964 },
965 [VGA_VIRTIO] = {
966 .opt_name = "virtio",
967 .name = "Virtio VGA",
968 .class_names = { "virtio-vga" },
969 },
970 [VGA_QXL] = {
971 .opt_name = "qxl",
972 .name = "QXL VGA",
973 .class_names = { "qxl-vga" },
974 },
975 [VGA_TCX] = {
976 .opt_name = "tcx",
977 .name = "TCX framebuffer",
978 .class_names = { "sun-tcx" },
979 },
980 [VGA_CG3] = {
981 .opt_name = "cg3",
982 .name = "CG3 framebuffer",
983 .class_names = { "cgthree" },
984 },
985 #ifdef CONFIG_XEN_BACKEND
986 [VGA_XENFB] = {
987 .opt_name = "xenfb",
988 .name = "Xen paravirtualized framebuffer",
989 },
990 #endif
991 };
992
993 static bool vga_interface_available(VGAInterfaceType t)
994 {
995 const VGAInterfaceInfo *ti = &vga_interfaces[t];
996
997 assert(t < VGA_TYPE_MAX);
998 return !ti->class_names[0] ||
999 module_object_class_by_name(ti->class_names[0]) ||
1000 module_object_class_by_name(ti->class_names[1]);
1001 }
1002
1003 static const char *
1004 get_default_vga_model(const MachineClass *machine_class)
1005 {
1006 if (machine_class->default_display) {
1007 for (int t = 0; t < VGA_TYPE_MAX; t++) {
1008 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1009
1010 if (ti->opt_name && vga_interface_available(t) &&
1011 g_str_equal(ti->opt_name, machine_class->default_display)) {
1012 return machine_class->default_display;
1013 }
1014 }
1015
1016 warn_report_once("Default display '%s' is not available in this binary",
1017 machine_class->default_display);
1018 return NULL;
1019 } else if (vga_interface_available(VGA_CIRRUS)) {
1020 return "cirrus";
1021 } else if (vga_interface_available(VGA_STD)) {
1022 return "std";
1023 }
1024
1025 return NULL;
1026 }
1027
1028 static void select_vgahw(const MachineClass *machine_class, const char *p)
1029 {
1030 const char *opts;
1031 int t;
1032
1033 if (g_str_equal(p, "help")) {
1034 const char *def = get_default_vga_model(machine_class);
1035
1036 for (t = 0; t < VGA_TYPE_MAX; t++) {
1037 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1038
1039 if (vga_interface_available(t) && ti->opt_name) {
1040 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1041 (def && g_str_equal(ti->opt_name, def)) ?
1042 " (default)" : "");
1043 }
1044 }
1045 exit(0);
1046 }
1047
1048 assert(vga_interface_type == VGA_NONE);
1049 for (t = 0; t < VGA_TYPE_MAX; t++) {
1050 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1051 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1052 if (!vga_interface_available(t)) {
1053 error_report("%s not available", ti->name);
1054 exit(1);
1055 }
1056 vga_interface_type = t;
1057 break;
1058 }
1059 }
1060 if (t == VGA_TYPE_MAX) {
1061 invalid_vga:
1062 error_report("unknown vga type: %s", p);
1063 exit(1);
1064 }
1065 while (*opts) {
1066 const char *nextopt;
1067
1068 if (strstart(opts, ",retrace=", &nextopt)) {
1069 opts = nextopt;
1070 if (strstart(opts, "dumb", &nextopt))
1071 vga_retrace_method = VGA_RETRACE_DUMB;
1072 else if (strstart(opts, "precise", &nextopt))
1073 vga_retrace_method = VGA_RETRACE_PRECISE;
1074 else goto invalid_vga;
1075 } else goto invalid_vga;
1076 opts = nextopt;
1077 }
1078 }
1079
1080 static void parse_display_qapi(const char *str)
1081 {
1082 DisplayOptions *opts;
1083 Visitor *v;
1084
1085 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1086
1087 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1088 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1089
1090 qapi_free_DisplayOptions(opts);
1091 visit_free(v);
1092 }
1093
1094 DisplayOptions *qmp_query_display_options(Error **errp)
1095 {
1096 return QAPI_CLONE(DisplayOptions, &dpy);
1097 }
1098
1099 static void parse_display(const char *p)
1100 {
1101 if (is_help_option(p)) {
1102 qemu_display_help();
1103 exit(0);
1104 }
1105
1106 #ifdef CONFIG_VNC
1107 const char *opts;
1108
1109 if (strstart(p, "vnc", &opts)) {
1110 /*
1111 * vnc isn't a (local) DisplayType but a protocol for remote
1112 * display access.
1113 */
1114 if (*opts == '=') {
1115 vnc_parse(opts + 1);
1116 display_remote++;
1117 } else {
1118 error_report("VNC requires a display argument vnc=<display>");
1119 exit(1);
1120 }
1121 return;
1122 }
1123 #endif
1124
1125 parse_display_qapi(p);
1126 }
1127
1128 static inline bool nonempty_str(const char *str)
1129 {
1130 return str && *str;
1131 }
1132
1133 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1134 {
1135 gchar *buf;
1136 size_t size;
1137 const char *name, *file, *str, *gen_id;
1138 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1139
1140 if (fw_cfg == NULL) {
1141 error_setg(errp, "fw_cfg device not available");
1142 return -1;
1143 }
1144 name = qemu_opt_get(opts, "name");
1145 file = qemu_opt_get(opts, "file");
1146 str = qemu_opt_get(opts, "string");
1147 gen_id = qemu_opt_get(opts, "gen_id");
1148
1149 /* we need the name, and exactly one of: file, content string, gen_id */
1150 if (!nonempty_str(name) ||
1151 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1152 error_setg(errp, "name, plus exactly one of file,"
1153 " string and gen_id, are needed");
1154 return -1;
1155 }
1156 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1157 error_setg(errp, "name too long (max. %d char)",
1158 FW_CFG_MAX_FILE_PATH - 1);
1159 return -1;
1160 }
1161 if (nonempty_str(gen_id)) {
1162 /*
1163 * In this particular case where the content is populated
1164 * internally, the "etc/" namespace protection is relaxed,
1165 * so do not emit a warning.
1166 */
1167 } else if (strncmp(name, "opt/", 4) != 0) {
1168 warn_report("externally provided fw_cfg item names "
1169 "should be prefixed with \"opt/\"");
1170 }
1171 if (nonempty_str(str)) {
1172 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1173 buf = g_memdup(str, size);
1174 } else if (nonempty_str(gen_id)) {
1175 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1176 return -1;
1177 }
1178 return 0;
1179 } else {
1180 GError *err = NULL;
1181 if (!g_file_get_contents(file, &buf, &size, &err)) {
1182 error_setg(errp, "can't load %s: %s", file, err->message);
1183 g_error_free(err);
1184 return -1;
1185 }
1186 }
1187 /* For legacy, keep user files in a specific global order. */
1188 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1189 fw_cfg_add_file(fw_cfg, name, buf, size);
1190 fw_cfg_reset_order_override(fw_cfg);
1191 return 0;
1192 }
1193
1194 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1195 {
1196 return qdev_device_help(opts);
1197 }
1198
1199 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1200 {
1201 DeviceState *dev;
1202
1203 dev = qdev_device_add(opts, errp);
1204 if (!dev && *errp) {
1205 error_report_err(*errp);
1206 return -1;
1207 } else if (dev) {
1208 object_unref(OBJECT(dev));
1209 }
1210 return 0;
1211 }
1212
1213 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1214 {
1215 Error *local_err = NULL;
1216
1217 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1218 if (local_err) {
1219 error_propagate(errp, local_err);
1220 return -1;
1221 }
1222 exit(0);
1223 }
1224 return 0;
1225 }
1226
1227 #ifdef CONFIG_VIRTFS
1228 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1229 {
1230 return qemu_fsdev_add(opts, errp);
1231 }
1232 #endif
1233
1234 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1235 {
1236 return monitor_init_opts(opts, errp);
1237 }
1238
1239 static void monitor_parse(const char *str, const char *mode, bool pretty)
1240 {
1241 static int monitor_device_index = 0;
1242 QemuOpts *opts;
1243 const char *p;
1244 char label[32];
1245
1246 if (strstart(str, "chardev:", &p)) {
1247 snprintf(label, sizeof(label), "%s", p);
1248 } else {
1249 snprintf(label, sizeof(label), "compat_monitor%d",
1250 monitor_device_index);
1251 opts = qemu_chr_parse_compat(label, str, true);
1252 if (!opts) {
1253 error_report("parse error: %s", str);
1254 exit(1);
1255 }
1256 }
1257
1258 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1259 qemu_opt_set(opts, "mode", mode, &error_abort);
1260 qemu_opt_set(opts, "chardev", label, &error_abort);
1261 if (!strcmp(mode, "control")) {
1262 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1263 } else {
1264 assert(pretty == false);
1265 }
1266 monitor_device_index++;
1267 }
1268
1269 struct device_config {
1270 enum {
1271 DEV_USB, /* -usbdevice */
1272 DEV_SERIAL, /* -serial */
1273 DEV_PARALLEL, /* -parallel */
1274 DEV_DEBUGCON, /* -debugcon */
1275 DEV_GDB, /* -gdb, -s */
1276 DEV_SCLP, /* s390 sclp */
1277 } type;
1278 const char *cmdline;
1279 Location loc;
1280 QTAILQ_ENTRY(device_config) next;
1281 };
1282
1283 static QTAILQ_HEAD(, device_config) device_configs =
1284 QTAILQ_HEAD_INITIALIZER(device_configs);
1285
1286 static void add_device_config(int type, const char *cmdline)
1287 {
1288 struct device_config *conf;
1289
1290 conf = g_malloc0(sizeof(*conf));
1291 conf->type = type;
1292 conf->cmdline = cmdline;
1293 loc_save(&conf->loc);
1294 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1295 }
1296
1297 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1298 {
1299 struct device_config *conf;
1300 int rc;
1301
1302 QTAILQ_FOREACH(conf, &device_configs, next) {
1303 if (conf->type != type)
1304 continue;
1305 loc_push_restore(&conf->loc);
1306 rc = func(conf->cmdline);
1307 loc_pop(&conf->loc);
1308 if (rc) {
1309 return rc;
1310 }
1311 }
1312 return 0;
1313 }
1314
1315 static void qemu_disable_default_devices(void)
1316 {
1317 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1318
1319 default_driver_check_json();
1320 qemu_opts_foreach(qemu_find_opts("device"),
1321 default_driver_check, NULL, NULL);
1322 qemu_opts_foreach(qemu_find_opts("global"),
1323 default_driver_check, NULL, NULL);
1324
1325 if (!vga_model && !default_vga) {
1326 vga_interface_type = VGA_DEVICE;
1327 vga_interface_created = true;
1328 }
1329 if (!has_defaults || machine_class->no_serial) {
1330 default_serial = 0;
1331 }
1332 if (!has_defaults || machine_class->no_parallel) {
1333 default_parallel = 0;
1334 }
1335 if (!has_defaults || machine_class->no_floppy) {
1336 default_floppy = 0;
1337 }
1338 if (!has_defaults || machine_class->no_cdrom) {
1339 default_cdrom = 0;
1340 }
1341 if (!has_defaults || machine_class->no_sdcard) {
1342 default_sdcard = 0;
1343 }
1344 if (!has_defaults) {
1345 default_audio = 0;
1346 default_monitor = 0;
1347 default_net = 0;
1348 default_vga = 0;
1349 } else {
1350 if (default_net && machine_class->default_nic &&
1351 !module_object_class_by_name(machine_class->default_nic)) {
1352 warn_report("Default NIC '%s' is not available in this binary",
1353 machine_class->default_nic);
1354 default_net = 0;
1355 }
1356 }
1357 }
1358
1359 static void qemu_setup_display(void)
1360 {
1361 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1362 if (!qemu_display_find_default(&dpy)) {
1363 dpy.type = DISPLAY_TYPE_NONE;
1364 #if defined(CONFIG_VNC)
1365 vnc_parse("localhost:0,to=99,id=default");
1366 display_remote++;
1367 #endif
1368 }
1369 }
1370 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1371 dpy.type = DISPLAY_TYPE_NONE;
1372 }
1373
1374 qemu_display_early_init(&dpy);
1375 }
1376
1377 static void qemu_create_default_devices(void)
1378 {
1379 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1380 const char *vc = qemu_display_get_vc(&dpy);
1381
1382 if (is_daemonized()) {
1383 /* According to documentation and historically, -nographic redirects
1384 * serial port, parallel port and monitor to stdio, which does not work
1385 * with -daemonize. We can redirect these to null instead, but since
1386 * -nographic is legacy, let's just error out.
1387 * We disallow -nographic only if all other ports are not redirected
1388 * explicitly, to not break existing legacy setups which uses
1389 * -nographic _and_ redirects all ports explicitly - this is valid
1390 * usage, -nographic is just a no-op in this case.
1391 */
1392 if (nographic
1393 && (default_parallel || default_serial || default_monitor)) {
1394 error_report("-nographic cannot be used with -daemonize");
1395 exit(1);
1396 }
1397 }
1398
1399 if (nographic) {
1400 if (default_parallel) {
1401 add_device_config(DEV_PARALLEL, "null");
1402 }
1403 if (default_serial && default_monitor) {
1404 add_device_config(DEV_SERIAL, "mon:stdio");
1405 } else {
1406 if (default_serial) {
1407 add_device_config(DEV_SERIAL, "stdio");
1408 }
1409 if (default_monitor) {
1410 monitor_parse("stdio", "readline", false);
1411 }
1412 }
1413 } else {
1414 if (default_serial) {
1415 add_device_config(DEV_SERIAL, vc ?: "null");
1416 }
1417 if (default_parallel) {
1418 add_device_config(DEV_PARALLEL, vc ?: "null");
1419 }
1420 if (default_monitor && vc) {
1421 monitor_parse(vc, "readline", false);
1422 }
1423 }
1424
1425 if (default_net) {
1426 QemuOptsList *net = qemu_find_opts("net");
1427 qemu_opts_parse(net, "nic", true, &error_abort);
1428 #ifdef CONFIG_SLIRP
1429 qemu_opts_parse(net, "user", true, &error_abort);
1430 #endif
1431 }
1432
1433 /* If no default VGA is requested, the default is "none". */
1434 if (default_vga) {
1435 vga_model = get_default_vga_model(machine_class);
1436 }
1437 if (vga_model) {
1438 select_vgahw(machine_class, vga_model);
1439 }
1440 }
1441
1442 static int serial_parse(const char *devname)
1443 {
1444 int index = num_serial_hds;
1445
1446 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1447
1448 if (strcmp(devname, "none") == 0) {
1449 /* Don't allocate a serial device for this index */
1450 serial_hds[index] = NULL;
1451 } else {
1452 char label[32];
1453 snprintf(label, sizeof(label), "serial%d", index);
1454
1455 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1456 if (!serial_hds[index]) {
1457 error_report("could not connect serial device"
1458 " to character backend '%s'", devname);
1459 return -1;
1460 }
1461 }
1462 num_serial_hds++;
1463 return 0;
1464 }
1465
1466 Chardev *serial_hd(int i)
1467 {
1468 assert(i >= 0);
1469 if (i < num_serial_hds) {
1470 return serial_hds[i];
1471 }
1472 return NULL;
1473 }
1474
1475 static int parallel_parse(const char *devname)
1476 {
1477 static int index = 0;
1478 char label[32];
1479
1480 if (strcmp(devname, "none") == 0)
1481 return 0;
1482 if (index == MAX_PARALLEL_PORTS) {
1483 error_report("too many parallel ports");
1484 exit(1);
1485 }
1486 snprintf(label, sizeof(label), "parallel%d", index);
1487 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1488 if (!parallel_hds[index]) {
1489 error_report("could not connect parallel device"
1490 " to character backend '%s'", devname);
1491 return -1;
1492 }
1493 index++;
1494 return 0;
1495 }
1496
1497 static int debugcon_parse(const char *devname)
1498 {
1499 QemuOpts *opts;
1500
1501 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1502 error_report("invalid character backend '%s'", devname);
1503 exit(1);
1504 }
1505 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1506 if (!opts) {
1507 error_report("already have a debugcon device");
1508 exit(1);
1509 }
1510 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1511 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1512 return 0;
1513 }
1514
1515 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1516 {
1517 const MachineClass *mc1 = a, *mc2 = b;
1518 int res;
1519
1520 if (mc1->family == NULL) {
1521 if (mc2->family == NULL) {
1522 /* Compare standalone machine types against each other; they sort
1523 * in increasing order.
1524 */
1525 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1526 object_class_get_name(OBJECT_CLASS(mc2)));
1527 }
1528
1529 /* Standalone machine types sort after families. */
1530 return 1;
1531 }
1532
1533 if (mc2->family == NULL) {
1534 /* Families sort before standalone machine types. */
1535 return -1;
1536 }
1537
1538 /* Families sort between each other alphabetically increasingly. */
1539 res = strcmp(mc1->family, mc2->family);
1540 if (res != 0) {
1541 return res;
1542 }
1543
1544 /* Within the same family, machine types sort in decreasing order. */
1545 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1546 object_class_get_name(OBJECT_CLASS(mc1)));
1547 }
1548
1549 static void machine_help_func(const QDict *qdict)
1550 {
1551 g_autoptr(GSList) machines = NULL;
1552 GSList *el;
1553 const char *type = qdict_get_try_str(qdict, "type");
1554
1555 machines = object_class_get_list(TYPE_MACHINE, false);
1556 if (type) {
1557 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1558 if (machine_class) {
1559 type_print_class_properties(object_class_get_name(machine_class));
1560 return;
1561 }
1562 }
1563
1564 printf("Supported machines are:\n");
1565 machines = g_slist_sort(machines, machine_class_cmp);
1566 for (el = machines; el; el = el->next) {
1567 MachineClass *mc = el->data;
1568 if (mc->alias) {
1569 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1570 }
1571 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1572 mc->is_default ? " (default)" : "",
1573 mc->deprecation_reason ? " (deprecated)" : "");
1574 }
1575 }
1576
1577 static void
1578 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1579 {
1580 QDict *opts;
1581
1582 opts = qdict_new();
1583 /* Preserve the caller's reference to prop. */
1584 qobject_ref(prop);
1585 qdict_put(opts, propname, prop);
1586 keyval_merge(machine_opts_dict, opts, errp);
1587 qobject_unref(opts);
1588 }
1589
1590 static void
1591 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1592 const char *arg)
1593 {
1594 QDict *prop = NULL;
1595 bool help = false;
1596
1597 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1598 if (help) {
1599 qemu_opts_print_help(opts_list, true);
1600 exit(0);
1601 }
1602 machine_merge_property(propname, prop, &error_fatal);
1603 qobject_unref(prop);
1604 }
1605
1606 static const char *pid_file;
1607 struct UnlinkPidfileNotifier {
1608 Notifier notifier;
1609 char *pid_file_realpath;
1610 };
1611 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1612
1613 static void qemu_unlink_pidfile(Notifier *n, void *data)
1614 {
1615 struct UnlinkPidfileNotifier *upn;
1616
1617 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1618 unlink(upn->pid_file_realpath);
1619 }
1620
1621 static const QEMUOption *lookup_opt(int argc, char **argv,
1622 const char **poptarg, int *poptind)
1623 {
1624 const QEMUOption *popt;
1625 int optind = *poptind;
1626 char *r = argv[optind];
1627 const char *optarg;
1628
1629 loc_set_cmdline(argv, optind, 1);
1630 optind++;
1631 /* Treat --foo the same as -foo. */
1632 if (r[1] == '-')
1633 r++;
1634 popt = qemu_options;
1635 for(;;) {
1636 if (!popt->name) {
1637 error_report("invalid option");
1638 exit(1);
1639 }
1640 if (!strcmp(popt->name, r + 1))
1641 break;
1642 popt++;
1643 }
1644 if (popt->flags & HAS_ARG) {
1645 if (optind >= argc) {
1646 error_report("requires an argument");
1647 exit(1);
1648 }
1649 optarg = argv[optind++];
1650 loc_set_cmdline(argv, optind - 2, 2);
1651 } else {
1652 optarg = NULL;
1653 }
1654
1655 *poptarg = optarg;
1656 *poptind = optind;
1657
1658 return popt;
1659 }
1660
1661 static MachineClass *select_machine(QDict *qdict, Error **errp)
1662 {
1663 const char *machine_type = qdict_get_try_str(qdict, "type");
1664 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1665 MachineClass *machine_class;
1666 Error *local_err = NULL;
1667
1668 if (machine_type) {
1669 machine_class = find_machine(machine_type, machines);
1670 qdict_del(qdict, "type");
1671 if (!machine_class) {
1672 error_setg(&local_err, "unsupported machine type");
1673 }
1674 } else {
1675 machine_class = find_default_machine(machines);
1676 if (!machine_class) {
1677 error_setg(&local_err, "No machine specified, and there is no default");
1678 }
1679 }
1680
1681 g_slist_free(machines);
1682 if (local_err) {
1683 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1684 error_propagate(errp, local_err);
1685 }
1686 return machine_class;
1687 }
1688
1689 static int object_parse_property_opt(Object *obj,
1690 const char *name, const char *value,
1691 const char *skip, Error **errp)
1692 {
1693 if (g_str_equal(name, skip)) {
1694 return 0;
1695 }
1696
1697 if (!object_property_parse(obj, name, value, errp)) {
1698 return -1;
1699 }
1700
1701 return 0;
1702 }
1703
1704 /* *Non*recursively replace underscores with dashes in QDict keys. */
1705 static void keyval_dashify(QDict *qdict, Error **errp)
1706 {
1707 const QDictEntry *ent, *next;
1708 char *p;
1709
1710 for (ent = qdict_first(qdict); ent; ent = next) {
1711 g_autofree char *new_key = NULL;
1712
1713 next = qdict_next(qdict, ent);
1714 if (!strchr(ent->key, '_')) {
1715 continue;
1716 }
1717 new_key = g_strdup(ent->key);
1718 for (p = new_key; *p; p++) {
1719 if (*p == '_') {
1720 *p = '-';
1721 }
1722 }
1723 if (qdict_haskey(qdict, new_key)) {
1724 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1725 return;
1726 }
1727 qobject_ref(ent->value);
1728 qdict_put_obj(qdict, new_key, ent->value);
1729 qdict_del(qdict, ent->key);
1730 }
1731 }
1732
1733 static void qemu_apply_legacy_machine_options(QDict *qdict)
1734 {
1735 const char *value;
1736 QObject *prop;
1737
1738 keyval_dashify(qdict, &error_fatal);
1739
1740 /* Legacy options do not correspond to MachineState properties. */
1741 value = qdict_get_try_str(qdict, "accel");
1742 if (value) {
1743 accelerators = g_strdup(value);
1744 qdict_del(qdict, "accel");
1745 }
1746
1747 value = qdict_get_try_str(qdict, "igd-passthru");
1748 if (value) {
1749 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1750 false);
1751 qdict_del(qdict, "igd-passthru");
1752 }
1753
1754 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1755 if (value) {
1756 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1757 false);
1758 qdict_del(qdict, "kvm-shadow-mem");
1759 }
1760
1761 value = qdict_get_try_str(qdict, "kernel-irqchip");
1762 if (value) {
1763 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1764 false);
1765 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1766 false);
1767 qdict_del(qdict, "kernel-irqchip");
1768 }
1769
1770 value = qdict_get_try_str(qdict, "memory-backend");
1771 if (value) {
1772 if (mem_path) {
1773 error_report("'-mem-path' can't be used together with"
1774 "'-machine memory-backend'");
1775 exit(EXIT_FAILURE);
1776 }
1777
1778 /* Resolved later. */
1779 ram_memdev_id = g_strdup(value);
1780 qdict_del(qdict, "memory-backend");
1781 }
1782
1783 prop = qdict_get(qdict, "memory");
1784 if (prop) {
1785 have_custom_ram_size =
1786 qobject_type(prop) == QTYPE_QDICT &&
1787 qdict_haskey(qobject_to(QDict, prop), "size");
1788 }
1789 }
1790
1791 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1792 {
1793 ObjectOption *opt, *next;
1794
1795 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1796 const char *type = ObjectType_str(opt->opts->qom_type);
1797 if (type_opt_predicate(type)) {
1798 user_creatable_add_qapi(opt->opts, &error_fatal);
1799 qapi_free_ObjectOptions(opt->opts);
1800 QTAILQ_REMOVE(&object_opts, opt, next);
1801 g_free(opt);
1802 }
1803 }
1804 }
1805
1806 static void object_option_add_visitor(Visitor *v)
1807 {
1808 ObjectOption *opt = g_new0(ObjectOption, 1);
1809 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1810 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1811 }
1812
1813 static void object_option_parse(const char *str)
1814 {
1815 QemuOpts *opts;
1816 const char *type;
1817 Visitor *v;
1818
1819 if (str[0] == '{') {
1820 QObject *obj = qobject_from_json(str, &error_fatal);
1821
1822 v = qobject_input_visitor_new(obj);
1823 qobject_unref(obj);
1824 } else {
1825 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1826 str, true);
1827 if (!opts) {
1828 exit(1);
1829 }
1830
1831 type = qemu_opt_get(opts, "qom-type");
1832 if (!type) {
1833 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1834 }
1835 if (user_creatable_print_help(type, opts)) {
1836 exit(0);
1837 }
1838
1839 v = opts_visitor_new(opts);
1840 }
1841
1842 object_option_add_visitor(v);
1843 visit_free(v);
1844 }
1845
1846 /*
1847 * Very early object creation, before the sandbox options have been activated.
1848 */
1849 static bool object_create_pre_sandbox(const char *type)
1850 {
1851 /*
1852 * Objects should in general not get initialized "too early" without
1853 * a reason. If you add one, state the reason in a comment!
1854 */
1855
1856 /*
1857 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1858 * affinity of threads.
1859 */
1860 if (g_str_equal(type, "thread-context")) {
1861 return true;
1862 }
1863
1864 return false;
1865 }
1866
1867 /*
1868 * Initial object creation happens before all other
1869 * QEMU data types are created. The majority of objects
1870 * can be created at this point. The rng-egd object
1871 * cannot be created here, as it depends on the chardev
1872 * already existing.
1873 */
1874 static bool object_create_early(const char *type)
1875 {
1876 /*
1877 * Objects should not be made "delayed" without a reason. If you
1878 * add one, state the reason in a comment!
1879 */
1880
1881 /* Reason: already created. */
1882 if (object_create_pre_sandbox(type)) {
1883 return false;
1884 }
1885
1886 /* Reason: property "chardev" */
1887 if (g_str_equal(type, "rng-egd") ||
1888 g_str_equal(type, "qtest")) {
1889 return false;
1890 }
1891
1892 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1893 /* Reason: cryptodev-vhost-user property "chardev" */
1894 if (g_str_equal(type, "cryptodev-vhost-user")) {
1895 return false;
1896 }
1897 #endif
1898
1899 /* Reason: vhost-user-blk-server property "node-name" */
1900 if (g_str_equal(type, "vhost-user-blk-server")) {
1901 return false;
1902 }
1903 /*
1904 * Reason: filter-* property "netdev" etc.
1905 */
1906 if (g_str_equal(type, "filter-buffer") ||
1907 g_str_equal(type, "filter-dump") ||
1908 g_str_equal(type, "filter-mirror") ||
1909 g_str_equal(type, "filter-redirector") ||
1910 g_str_equal(type, "colo-compare") ||
1911 g_str_equal(type, "filter-rewriter") ||
1912 g_str_equal(type, "filter-replay")) {
1913 return false;
1914 }
1915
1916 /*
1917 * Allocation of large amounts of memory may delay
1918 * chardev initialization for too long, and trigger timeouts
1919 * on software that waits for a monitor socket to be created
1920 */
1921 if (g_str_has_prefix(type, "memory-backend-")) {
1922 return false;
1923 }
1924
1925 return true;
1926 }
1927
1928 static void qemu_apply_machine_options(QDict *qdict)
1929 {
1930 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1931
1932 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1933 /* fall back to the -kernel/-append */
1934 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1935 }
1936
1937 if (current_machine->smp.cpus > 1) {
1938 replay_add_blocker("multiple CPUs");
1939 }
1940 }
1941
1942 static void qemu_create_early_backends(void)
1943 {
1944 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1945 #if defined(CONFIG_SDL)
1946 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1947 #else
1948 const bool use_sdl = false;
1949 #endif
1950 #if defined(CONFIG_GTK)
1951 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1952 #else
1953 const bool use_gtk = false;
1954 #endif
1955
1956 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1957 error_report("window-close is only valid for GTK and SDL, "
1958 "ignoring option");
1959 }
1960
1961 qemu_console_early_init();
1962
1963 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1964 #if defined(CONFIG_OPENGL)
1965 error_report("OpenGL is not supported by the display");
1966 #else
1967 error_report("OpenGL support is disabled");
1968 #endif
1969 exit(1);
1970 }
1971
1972 object_option_foreach_add(object_create_early);
1973
1974 /* spice needs the timers to be initialized by this point */
1975 /* spice must initialize before audio as it changes the default audiodev */
1976 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1977 qemu_spice.init();
1978
1979 qemu_opts_foreach(qemu_find_opts("chardev"),
1980 chardev_init_func, NULL, &error_fatal);
1981
1982 #ifdef CONFIG_VIRTFS
1983 qemu_opts_foreach(qemu_find_opts("fsdev"),
1984 fsdev_init_func, NULL, &error_fatal);
1985 #endif
1986
1987 /*
1988 * Note: we need to create audio and block backends before
1989 * setting machine properties, so they can be referred to.
1990 */
1991 configure_blockdev(&bdo_queue, machine_class, snapshot);
1992 audio_init_audiodevs();
1993 if (default_audio) {
1994 audio_create_default_audiodevs();
1995 }
1996 }
1997
1998
1999 /*
2000 * The remainder of object creation happens after the
2001 * creation of chardev, fsdev, net clients and device data types.
2002 */
2003 static bool object_create_late(const char *type)
2004 {
2005 return !object_create_early(type) && !object_create_pre_sandbox(type);
2006 }
2007
2008 static void qemu_create_late_backends(void)
2009 {
2010 if (qtest_chrdev) {
2011 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
2012 }
2013
2014 net_init_clients();
2015
2016 object_option_foreach_add(object_create_late);
2017
2018 /*
2019 * Wait for any outstanding memory prealloc from created memory
2020 * backends to complete.
2021 */
2022 if (!qemu_finish_async_prealloc_mem(&error_fatal)) {
2023 exit(1);
2024 }
2025
2026 if (tpm_init() < 0) {
2027 exit(1);
2028 }
2029
2030 qemu_opts_foreach(qemu_find_opts("mon"),
2031 mon_init_func, NULL, &error_fatal);
2032
2033 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2034 exit(1);
2035 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2036 exit(1);
2037 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2038 exit(1);
2039
2040 /* now chardevs have been created we may have semihosting to connect */
2041 qemu_semihosting_chardev_init();
2042 }
2043
2044 static void qemu_resolve_machine_memdev(void)
2045 {
2046 if (ram_memdev_id) {
2047 Object *backend;
2048 ram_addr_t backend_size;
2049
2050 backend = object_resolve_path_type(ram_memdev_id,
2051 TYPE_MEMORY_BACKEND, NULL);
2052 if (!backend) {
2053 error_report("Memory backend '%s' not found", ram_memdev_id);
2054 exit(EXIT_FAILURE);
2055 }
2056 if (!have_custom_ram_size) {
2057 backend_size = object_property_get_uint(backend, "size", &error_abort);
2058 current_machine->ram_size = backend_size;
2059 }
2060 object_property_set_link(OBJECT(current_machine),
2061 "memory-backend", backend, &error_fatal);
2062 }
2063 }
2064
2065 static void parse_memory_options(void)
2066 {
2067 QemuOpts *opts = qemu_find_opts_singleton("memory");
2068 QDict *dict, *prop;
2069 const char *mem_str;
2070 Location loc;
2071
2072 loc_push_none(&loc);
2073 qemu_opts_loc_restore(opts);
2074
2075 prop = qdict_new();
2076
2077 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2078 /* Fix up legacy suffix-less format */
2079 mem_str = qemu_opt_get(opts, "size");
2080 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2081 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2082 qdict_put_str(prop, "size", mib_str);
2083 } else {
2084 qdict_put_str(prop, "size", mem_str);
2085 }
2086 }
2087
2088 if (qemu_opt_get(opts, "maxmem")) {
2089 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2090 }
2091 if (qemu_opt_get(opts, "slots")) {
2092 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2093 }
2094
2095 dict = qdict_new();
2096 qdict_put(dict, "memory", prop);
2097 keyval_merge(machine_opts_dict, dict, &error_fatal);
2098 qobject_unref(dict);
2099 loc_pop(&loc);
2100 }
2101
2102 static void qemu_create_machine(QDict *qdict)
2103 {
2104 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2105 object_set_machine_compat_props(machine_class->compat_props);
2106
2107 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2108 object_property_add_child(object_get_root(), "machine",
2109 OBJECT(current_machine));
2110 object_property_add_child(container_get(OBJECT(current_machine),
2111 "/unattached"),
2112 "sysbus", OBJECT(sysbus_get_default()));
2113
2114 if (machine_class->minimum_page_bits) {
2115 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2116 /* This would be a board error: specifying a minimum smaller than
2117 * a target's compile-time fixed setting.
2118 */
2119 g_assert_not_reached();
2120 }
2121 }
2122
2123 cpu_exec_init_all();
2124
2125 if (machine_class->hw_version) {
2126 qemu_set_hw_version(machine_class->hw_version);
2127 }
2128
2129 /*
2130 * Get the default machine options from the machine if it is not already
2131 * specified either by the configuration file or by the command line.
2132 */
2133 if (machine_class->default_machine_opts) {
2134 QDict *default_opts =
2135 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2136 &error_abort);
2137 qemu_apply_legacy_machine_options(default_opts);
2138 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2139 false, &error_abort);
2140 qobject_unref(default_opts);
2141 }
2142 }
2143
2144 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2145 {
2146 GlobalProperty *g;
2147
2148 g = g_malloc0(sizeof(*g));
2149 g->driver = qemu_opt_get(opts, "driver");
2150 g->property = qemu_opt_get(opts, "property");
2151 g->value = qemu_opt_get(opts, "value");
2152 qdev_prop_register_global(g);
2153 return 0;
2154 }
2155
2156 /*
2157 * Return whether configuration group @group is stored in QemuOpts, or
2158 * recorded as one or more QDicts by qemu_record_config_group.
2159 */
2160 static bool is_qemuopts_group(const char *group)
2161 {
2162 if (g_str_equal(group, "object") ||
2163 g_str_equal(group, "audiodev") ||
2164 g_str_equal(group, "machine") ||
2165 g_str_equal(group, "smp-opts") ||
2166 g_str_equal(group, "boot-opts")) {
2167 return false;
2168 }
2169 return true;
2170 }
2171
2172 static void qemu_record_config_group(const char *group, QDict *dict,
2173 bool from_json, Error **errp)
2174 {
2175 if (g_str_equal(group, "object")) {
2176 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2177 object_option_add_visitor(v);
2178 visit_free(v);
2179
2180 } else if (g_str_equal(group, "audiodev")) {
2181 Audiodev *dev = NULL;
2182 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2183 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2184 audio_define(dev);
2185 }
2186 visit_free(v);
2187
2188 } else if (g_str_equal(group, "machine")) {
2189 /*
2190 * Cannot merge string-valued and type-safe dictionaries, so JSON
2191 * is not accepted yet for -M.
2192 */
2193 assert(!from_json);
2194 keyval_merge(machine_opts_dict, dict, errp);
2195 } else if (g_str_equal(group, "smp-opts")) {
2196 machine_merge_property("smp", dict, &error_fatal);
2197 } else if (g_str_equal(group, "boot-opts")) {
2198 machine_merge_property("boot", dict, &error_fatal);
2199 } else {
2200 abort();
2201 }
2202 }
2203
2204 /*
2205 * Parse non-QemuOpts config file groups, pass the rest to
2206 * qemu_config_do_parse.
2207 */
2208 static void qemu_parse_config_group(const char *group, QDict *qdict,
2209 void *opaque, Error **errp)
2210 {
2211 QObject *crumpled;
2212 if (is_qemuopts_group(group)) {
2213 qemu_config_do_parse(group, qdict, opaque, errp);
2214 return;
2215 }
2216
2217 crumpled = qdict_crumple(qdict, errp);
2218 if (!crumpled) {
2219 return;
2220 }
2221 switch (qobject_type(crumpled)) {
2222 case QTYPE_QDICT:
2223 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2224 break;
2225 case QTYPE_QLIST:
2226 error_setg(errp, "Lists cannot be at top level of a configuration section");
2227 break;
2228 default:
2229 g_assert_not_reached();
2230 }
2231 qobject_unref(crumpled);
2232 }
2233
2234 static void qemu_read_default_config_file(Error **errp)
2235 {
2236 ERRP_GUARD();
2237 int ret;
2238 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2239
2240 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2241 if (ret < 0) {
2242 if (ret == -ENOENT) {
2243 error_free(*errp);
2244 *errp = NULL;
2245 }
2246 }
2247 }
2248
2249 static void qemu_set_option(const char *str, Error **errp)
2250 {
2251 char group[64], id[64], arg[64];
2252 QemuOptsList *list;
2253 QemuOpts *opts;
2254 int rc, offset;
2255
2256 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2257 if (rc < 3 || str[offset] != '=') {
2258 error_setg(errp, "can't parse: \"%s\"", str);
2259 return;
2260 }
2261
2262 if (!is_qemuopts_group(group)) {
2263 error_setg(errp, "-set is not supported with %s", group);
2264 } else {
2265 list = qemu_find_opts_err(group, errp);
2266 if (list) {
2267 opts = qemu_opts_find(list, id);
2268 if (!opts) {
2269 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2270 return;
2271 }
2272 qemu_opt_set(opts, arg, str + offset + 1, errp);
2273 }
2274 }
2275 }
2276
2277 static void user_register_global_props(void)
2278 {
2279 qemu_opts_foreach(qemu_find_opts("global"),
2280 global_init_func, NULL, NULL);
2281 }
2282
2283 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2284 {
2285 return !icount_configure(opts, errp);
2286 }
2287
2288 static int accelerator_set_property(void *opaque,
2289 const char *name, const char *value,
2290 Error **errp)
2291 {
2292 return object_parse_property_opt(opaque, name, value, "accel", errp);
2293 }
2294
2295 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2296 {
2297 bool *p_init_failed = opaque;
2298 const char *acc = qemu_opt_get(opts, "accel");
2299 AccelClass *ac = accel_find(acc);
2300 AccelState *accel;
2301 int ret;
2302 bool qtest_with_kvm;
2303
2304 if (!acc) {
2305 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2306 goto bad;
2307 }
2308
2309 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2310
2311 if (!ac) {
2312 if (!qtest_with_kvm) {
2313 error_report("invalid accelerator %s", acc);
2314 }
2315 goto bad;
2316 }
2317 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2318 object_apply_compat_props(OBJECT(accel));
2319 qemu_opt_foreach(opts, accelerator_set_property,
2320 accel,
2321 &error_fatal);
2322
2323 ret = accel_init_machine(accel, current_machine);
2324 if (ret < 0) {
2325 if (!qtest_with_kvm || ret != -ENOENT) {
2326 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2327 }
2328 goto bad;
2329 }
2330
2331 return 1;
2332
2333 bad:
2334 *p_init_failed = true;
2335 return 0;
2336 }
2337
2338 static void configure_accelerators(const char *progname)
2339 {
2340 bool init_failed = false;
2341
2342 qemu_opts_foreach(qemu_find_opts("icount"),
2343 do_configure_icount, NULL, &error_fatal);
2344
2345 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2346 char **accel_list, **tmp;
2347
2348 if (accelerators == NULL) {
2349 /* Select the default accelerator */
2350 bool have_tcg = accel_find("tcg");
2351 bool have_kvm = accel_find("kvm");
2352
2353 if (have_tcg && have_kvm) {
2354 if (g_str_has_suffix(progname, "kvm")) {
2355 /* If the program name ends with "kvm", we prefer KVM */
2356 accelerators = "kvm:tcg";
2357 } else {
2358 accelerators = "tcg:kvm";
2359 }
2360 } else if (have_kvm) {
2361 accelerators = "kvm";
2362 } else if (have_tcg) {
2363 accelerators = "tcg";
2364 } else {
2365 error_report("No accelerator selected and"
2366 " no default accelerator available");
2367 exit(1);
2368 }
2369 }
2370 accel_list = g_strsplit(accelerators, ":", 0);
2371
2372 for (tmp = accel_list; *tmp; tmp++) {
2373 /*
2374 * Filter invalid accelerators here, to prevent obscenities
2375 * such as "-machine accel=tcg,,thread=single".
2376 */
2377 if (accel_find(*tmp)) {
2378 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2379 } else {
2380 init_failed = true;
2381 error_report("invalid accelerator %s", *tmp);
2382 }
2383 }
2384 g_strfreev(accel_list);
2385 } else {
2386 if (accelerators != NULL) {
2387 error_report("The -accel and \"-machine accel=\" options are incompatible");
2388 exit(1);
2389 }
2390 }
2391
2392 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2393 do_configure_accelerator, &init_failed, &error_fatal)) {
2394 if (!init_failed) {
2395 error_report("no accelerator found");
2396 }
2397 exit(1);
2398 }
2399
2400 if (init_failed && !qtest_chrdev) {
2401 error_report("falling back to %s", current_accel_name());
2402 }
2403
2404 if (icount_enabled() && !tcg_enabled()) {
2405 error_report("-icount is not allowed with hardware virtualization");
2406 exit(1);
2407 }
2408 }
2409
2410 static void qemu_validate_options(const QDict *machine_opts)
2411 {
2412 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2413 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2414 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2415
2416 if (kernel_filename == NULL) {
2417 if (kernel_cmdline != NULL) {
2418 error_report("-append only allowed with -kernel option");
2419 exit(1);
2420 }
2421
2422 if (initrd_filename != NULL) {
2423 error_report("-initrd only allowed with -kernel option");
2424 exit(1);
2425 }
2426 }
2427
2428 if (loadvm && incoming) {
2429 error_report("'incoming' and 'loadvm' options are mutually exclusive");
2430 exit(EXIT_FAILURE);
2431 }
2432 if (loadvm && preconfig_requested) {
2433 error_report("'preconfig' and 'loadvm' options are "
2434 "mutually exclusive");
2435 exit(EXIT_FAILURE);
2436 }
2437 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2438 error_report("'preconfig' supports '-incoming defer' only");
2439 exit(EXIT_FAILURE);
2440 }
2441
2442 #ifdef CONFIG_CURSES
2443 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2444 error_report("curses display cannot be used with -daemonize");
2445 exit(1);
2446 }
2447 #endif
2448 }
2449
2450 static void qemu_process_sugar_options(void)
2451 {
2452 if (mem_prealloc) {
2453 QObject *smp = qdict_get(machine_opts_dict, "smp");
2454 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2455 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2456 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2457 const char *val = qstring_get_str(qobject_to(QString, cpus));
2458 object_register_sugar_prop("memory-backend", "prealloc-threads",
2459 val, false);
2460 }
2461 }
2462 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2463 }
2464 }
2465
2466 /* -action processing */
2467
2468 /*
2469 * Process all the -action parameters parsed from cmdline.
2470 */
2471 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2472 {
2473 Error *local_err = NULL;
2474 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2475 QObject *ret = NULL;
2476 qmp_marshal_set_action(qdict, &ret, &local_err);
2477 qobject_unref(ret);
2478 qobject_unref(qdict);
2479 if (local_err) {
2480 error_propagate(errp, local_err);
2481 return 1;
2482 }
2483 return 0;
2484 }
2485
2486 static void qemu_process_early_options(void)
2487 {
2488 qemu_opts_foreach(qemu_find_opts("name"),
2489 parse_name, NULL, &error_fatal);
2490
2491 object_option_foreach_add(object_create_pre_sandbox);
2492
2493 #ifdef CONFIG_SECCOMP
2494 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2495 if (olist) {
2496 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2497 }
2498 #endif
2499
2500 if (qemu_opts_foreach(qemu_find_opts("action"),
2501 process_runstate_actions, NULL, &error_fatal)) {
2502 exit(1);
2503 }
2504
2505 #ifndef _WIN32
2506 qemu_opts_foreach(qemu_find_opts("add-fd"),
2507 parse_add_fd, NULL, &error_fatal);
2508
2509 qemu_opts_foreach(qemu_find_opts("add-fd"),
2510 cleanup_add_fd, NULL, &error_fatal);
2511 #endif
2512
2513 /* Open the logfile at this point and set the log mask if necessary. */
2514 {
2515 int mask = 0;
2516 if (log_mask) {
2517 mask = qemu_str_to_log_mask(log_mask);
2518 if (!mask) {
2519 qemu_print_log_usage(stdout);
2520 exit(1);
2521 }
2522 }
2523 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2524 }
2525
2526 qemu_add_default_firmwarepath();
2527 }
2528
2529 static void qemu_process_help_options(void)
2530 {
2531 /*
2532 * Check for -cpu help and -device help before we call select_machine(),
2533 * which will return an error if the architecture has no default machine
2534 * type and the user did not specify one, so that the user doesn't need
2535 * to say '-cpu help -machine something'.
2536 */
2537 if (cpu_option && is_help_option(cpu_option)) {
2538 list_cpus();
2539 exit(0);
2540 }
2541
2542 if (qemu_opts_foreach(qemu_find_opts("device"),
2543 device_help_func, NULL, NULL)) {
2544 exit(0);
2545 }
2546
2547 /* -L help lists the data directories and exits. */
2548 if (list_data_dirs) {
2549 qemu_list_data_dirs();
2550 exit(0);
2551 }
2552 }
2553
2554 static void qemu_maybe_daemonize(const char *pid_file)
2555 {
2556 Error *err = NULL;
2557
2558 os_daemonize();
2559 rcu_disable_atfork();
2560
2561 if (pid_file) {
2562 char *pid_file_realpath = NULL;
2563
2564 if (!qemu_write_pidfile(pid_file, &err)) {
2565 error_reportf_err(err, "cannot create PID file: ");
2566 exit(1);
2567 }
2568
2569 pid_file_realpath = g_malloc0(PATH_MAX);
2570 if (!realpath(pid_file, pid_file_realpath)) {
2571 if (errno != ENOENT) {
2572 warn_report("not removing PID file on exit: cannot resolve PID "
2573 "file path: %s: %s", pid_file, strerror(errno));
2574 }
2575 return;
2576 }
2577
2578 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2579 .notifier = {
2580 .notify = qemu_unlink_pidfile,
2581 },
2582 .pid_file_realpath = pid_file_realpath,
2583 };
2584 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2585 }
2586 }
2587
2588 static void qemu_init_displays(void)
2589 {
2590 DisplayState *ds;
2591
2592 /* init local displays */
2593 ds = init_displaystate();
2594 qemu_display_init(ds, &dpy);
2595
2596 /* must be after terminal init, SDL library changes signal handlers */
2597 os_setup_signal_handling();
2598
2599 /* init remote displays */
2600 #ifdef CONFIG_VNC
2601 qemu_opts_foreach(qemu_find_opts("vnc"),
2602 vnc_init_func, NULL, &error_fatal);
2603 #endif
2604
2605 if (using_spice) {
2606 qemu_spice.display_init();
2607 }
2608 }
2609
2610 static void qemu_init_board(void)
2611 {
2612 /* process plugin before CPUs are created, but once -smp has been parsed */
2613 qemu_plugin_load_list(&plugin_list, &error_fatal);
2614
2615 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2616 machine_run_board_init(current_machine, mem_path, &error_fatal);
2617
2618 drive_check_orphaned();
2619
2620 realtime_init();
2621 }
2622
2623 static void qemu_create_cli_devices(void)
2624 {
2625 DeviceOption *opt;
2626
2627 soundhw_init();
2628
2629 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2630 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2631
2632 /* init USB devices */
2633 if (machine_usb(current_machine)) {
2634 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2635 exit(1);
2636 }
2637
2638 /* init generic devices */
2639 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2640 qemu_opts_foreach(qemu_find_opts("device"),
2641 device_init_func, NULL, &error_fatal);
2642 QTAILQ_FOREACH(opt, &device_opts, next) {
2643 DeviceState *dev;
2644 loc_push_restore(&opt->loc);
2645 /*
2646 * TODO Eventually we should call qmp_device_add() here to make sure it
2647 * behaves the same, but QMP still has to accept incorrectly typed
2648 * options until libvirt is fixed and we want to be strict on the CLI
2649 * from the start, so call qdev_device_add_from_qdict() directly for
2650 * now.
2651 */
2652 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2653 object_unref(OBJECT(dev));
2654 loc_pop(&opt->loc);
2655 }
2656 rom_reset_order_override();
2657 }
2658
2659 static bool qemu_machine_creation_done(Error **errp)
2660 {
2661 MachineState *machine = MACHINE(qdev_get_machine());
2662
2663 /* Did we create any drives that we failed to create a device for? */
2664 drive_check_orphaned();
2665
2666 /* Don't warn about the default network setup that you get if
2667 * no command line -net or -netdev options are specified. There
2668 * are two cases that we would otherwise complain about:
2669 * (1) board doesn't support a NIC but the implicit "-net nic"
2670 * requested one
2671 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2672 * sets up a nic that isn't connected to anything.
2673 */
2674 if (!default_net && (!qtest_enabled() || has_defaults)) {
2675 net_check_clients();
2676 }
2677
2678 qdev_prop_check_globals();
2679
2680 qdev_machine_creation_done();
2681
2682 if (machine->cgs && !machine->cgs->ready) {
2683 error_setg(errp, "accelerator does not support confidential guest %s",
2684 object_get_typename(OBJECT(machine->cgs)));
2685 exit(1);
2686 }
2687
2688 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2689 error_setg(errp, "could not start gdbserver");
2690 return false;
2691 }
2692 if (!vga_interface_created && !default_vga &&
2693 vga_interface_type != VGA_NONE) {
2694 warn_report("A -vga option was passed but this machine "
2695 "type does not use that option; "
2696 "No VGA device has been created");
2697 }
2698 return true;
2699 }
2700
2701 void qmp_x_exit_preconfig(Error **errp)
2702 {
2703 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2704 error_setg(errp, "The command is permitted only before machine initialization");
2705 return;
2706 }
2707
2708 qemu_init_board();
2709 qemu_create_cli_devices();
2710 if (!qemu_machine_creation_done(errp)) {
2711 return;
2712 }
2713
2714 if (loadvm) {
2715 RunState state = autostart ? RUN_STATE_RUNNING : runstate_get();
2716 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2717 load_snapshot_resume(state);
2718 }
2719 if (replay_mode != REPLAY_MODE_NONE) {
2720 replay_vmstate_init();
2721 }
2722
2723 if (incoming) {
2724 Error *local_err = NULL;
2725 if (strcmp(incoming, "defer") != 0) {
2726 qmp_migrate_incoming(incoming, false, NULL, &local_err);
2727 if (local_err) {
2728 error_reportf_err(local_err, "-incoming %s: ", incoming);
2729 exit(1);
2730 }
2731 }
2732 } else if (autostart) {
2733 qmp_cont(NULL);
2734 }
2735 }
2736
2737 void qemu_init(int argc, char **argv)
2738 {
2739 QemuOpts *opts;
2740 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2741 QemuOptsList *olist;
2742 int optind;
2743 const char *optarg;
2744 MachineClass *machine_class;
2745 bool userconfig = true;
2746 FILE *vmstate_dump_file = NULL;
2747
2748 qemu_add_opts(&qemu_drive_opts);
2749 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2750 qemu_add_drive_opts(&qemu_common_drive_opts);
2751 qemu_add_drive_opts(&qemu_drive_opts);
2752 qemu_add_drive_opts(&bdrv_runtime_opts);
2753 qemu_add_opts(&qemu_chardev_opts);
2754 qemu_add_opts(&qemu_device_opts);
2755 qemu_add_opts(&qemu_netdev_opts);
2756 qemu_add_opts(&qemu_nic_opts);
2757 qemu_add_opts(&qemu_net_opts);
2758 qemu_add_opts(&qemu_rtc_opts);
2759 qemu_add_opts(&qemu_global_opts);
2760 qemu_add_opts(&qemu_mon_opts);
2761 qemu_add_opts(&qemu_trace_opts);
2762 qemu_plugin_add_opts();
2763 qemu_add_opts(&qemu_option_rom_opts);
2764 qemu_add_opts(&qemu_accel_opts);
2765 qemu_add_opts(&qemu_mem_opts);
2766 qemu_add_opts(&qemu_smp_opts);
2767 qemu_add_opts(&qemu_boot_opts);
2768 qemu_add_opts(&qemu_add_fd_opts);
2769 qemu_add_opts(&qemu_object_opts);
2770 qemu_add_opts(&qemu_tpmdev_opts);
2771 qemu_add_opts(&qemu_overcommit_opts);
2772 qemu_add_opts(&qemu_msg_opts);
2773 qemu_add_opts(&qemu_name_opts);
2774 qemu_add_opts(&qemu_numa_opts);
2775 qemu_add_opts(&qemu_icount_opts);
2776 qemu_add_opts(&qemu_semihosting_config_opts);
2777 qemu_add_opts(&qemu_fw_cfg_opts);
2778 qemu_add_opts(&qemu_action_opts);
2779 qemu_add_run_with_opts();
2780 module_call_init(MODULE_INIT_OPTS);
2781
2782 error_init(argv[0]);
2783 qemu_init_exec_dir(argv[0]);
2784
2785 os_setup_limits();
2786
2787 qemu_init_arch_modules();
2788
2789 qemu_init_subsystems();
2790
2791 /* first pass of option parsing */
2792 optind = 1;
2793 while (optind < argc) {
2794 if (argv[optind][0] != '-') {
2795 /* disk image */
2796 optind++;
2797 } else {
2798 const QEMUOption *popt;
2799
2800 popt = lookup_opt(argc, argv, &optarg, &optind);
2801 switch (popt->index) {
2802 case QEMU_OPTION_nouserconfig:
2803 userconfig = false;
2804 break;
2805 }
2806 }
2807 }
2808
2809 machine_opts_dict = qdict_new();
2810 if (userconfig) {
2811 qemu_read_default_config_file(&error_fatal);
2812 }
2813
2814 /* second pass of option parsing */
2815 optind = 1;
2816 for(;;) {
2817 if (optind >= argc)
2818 break;
2819 if (argv[optind][0] != '-') {
2820 loc_set_cmdline(argv, optind, 1);
2821 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2822 } else {
2823 const QEMUOption *popt;
2824
2825 popt = lookup_opt(argc, argv, &optarg, &optind);
2826 if (!(popt->arch_mask & arch_type)) {
2827 error_report("Option not supported for this target");
2828 exit(1);
2829 }
2830 switch(popt->index) {
2831 case QEMU_OPTION_cpu:
2832 /* hw initialization will check this */
2833 cpu_option = optarg;
2834 break;
2835 case QEMU_OPTION_hda:
2836 case QEMU_OPTION_hdb:
2837 case QEMU_OPTION_hdc:
2838 case QEMU_OPTION_hdd:
2839 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2840 HD_OPTS);
2841 break;
2842 case QEMU_OPTION_blockdev:
2843 {
2844 Visitor *v;
2845 BlockdevOptionsQueueEntry *bdo;
2846
2847 v = qobject_input_visitor_new_str(optarg, "driver",
2848 &error_fatal);
2849
2850 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2851 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2852 &error_fatal);
2853 visit_free(v);
2854 loc_save(&bdo->loc);
2855 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2856 break;
2857 }
2858 case QEMU_OPTION_drive:
2859 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2860 optarg, false);
2861 if (opts == NULL) {
2862 exit(1);
2863 }
2864 break;
2865 case QEMU_OPTION_set:
2866 qemu_set_option(optarg, &error_fatal);
2867 break;
2868 case QEMU_OPTION_global:
2869 if (qemu_global_option(optarg) != 0)
2870 exit(1);
2871 break;
2872 case QEMU_OPTION_mtdblock:
2873 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2874 break;
2875 case QEMU_OPTION_sd:
2876 drive_add(IF_SD, -1, optarg, SD_OPTS);
2877 break;
2878 case QEMU_OPTION_pflash:
2879 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2880 break;
2881 case QEMU_OPTION_snapshot:
2882 snapshot = 1;
2883 replay_add_blocker("-snapshot");
2884 break;
2885 case QEMU_OPTION_numa:
2886 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2887 optarg, true);
2888 if (!opts) {
2889 exit(1);
2890 }
2891 break;
2892 case QEMU_OPTION_display:
2893 parse_display(optarg);
2894 break;
2895 case QEMU_OPTION_nographic:
2896 qdict_put_str(machine_opts_dict, "graphics", "off");
2897 nographic = true;
2898 dpy.type = DISPLAY_TYPE_NONE;
2899 break;
2900 case QEMU_OPTION_portrait:
2901 graphic_rotate = 90;
2902 break;
2903 case QEMU_OPTION_rotate:
2904 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2905 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2906 graphic_rotate != 180 && graphic_rotate != 270) {
2907 error_report("only 90, 180, 270 deg rotation is available");
2908 exit(1);
2909 }
2910 break;
2911 case QEMU_OPTION_kernel:
2912 qdict_put_str(machine_opts_dict, "kernel", optarg);
2913 break;
2914 case QEMU_OPTION_initrd:
2915 qdict_put_str(machine_opts_dict, "initrd", optarg);
2916 break;
2917 case QEMU_OPTION_append:
2918 qdict_put_str(machine_opts_dict, "append", optarg);
2919 break;
2920 case QEMU_OPTION_dtb:
2921 qdict_put_str(machine_opts_dict, "dtb", optarg);
2922 break;
2923 case QEMU_OPTION_cdrom:
2924 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2925 break;
2926 case QEMU_OPTION_boot:
2927 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2928 break;
2929 case QEMU_OPTION_fda:
2930 case QEMU_OPTION_fdb:
2931 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2932 optarg, FD_OPTS);
2933 break;
2934 case QEMU_OPTION_no_fd_bootchk:
2935 qdict_put_str(machine_opts_dict, "fd-bootchk", "off");
2936 break;
2937 case QEMU_OPTION_netdev:
2938 default_net = 0;
2939 if (netdev_is_modern(optarg)) {
2940 netdev_parse_modern(optarg);
2941 } else {
2942 net_client_parse(qemu_find_opts("netdev"), optarg);
2943 }
2944 break;
2945 case QEMU_OPTION_nic:
2946 default_net = 0;
2947 net_client_parse(qemu_find_opts("nic"), optarg);
2948 break;
2949 case QEMU_OPTION_net:
2950 default_net = 0;
2951 net_client_parse(qemu_find_opts("net"), optarg);
2952 break;
2953 #ifdef CONFIG_LIBISCSI
2954 case QEMU_OPTION_iscsi:
2955 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2956 optarg, false);
2957 if (!opts) {
2958 exit(1);
2959 }
2960 break;
2961 #endif
2962 case QEMU_OPTION_audiodev:
2963 default_audio = 0;
2964 audio_parse_option(optarg);
2965 break;
2966 case QEMU_OPTION_audio: {
2967 bool help;
2968 char *model = NULL;
2969 Audiodev *dev = NULL;
2970 Visitor *v;
2971 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2972 default_audio = 0;
2973 if (help || (qdict_haskey(dict, "driver") &&
2974 is_help_option(qdict_get_str(dict, "driver")))) {
2975 audio_help();
2976 exit(EXIT_SUCCESS);
2977 }
2978 if (!qdict_haskey(dict, "id")) {
2979 qdict_put_str(dict, "id", "audiodev0");
2980 }
2981 if (qdict_haskey(dict, "model")) {
2982 model = g_strdup(qdict_get_str(dict, "model"));
2983 qdict_del(dict, "model");
2984 if (is_help_option(model)) {
2985 show_valid_soundhw();
2986 exit(0);
2987 }
2988 }
2989 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2990 qobject_unref(dict);
2991 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2992 visit_free(v);
2993 if (model) {
2994 audio_define(dev);
2995 select_soundhw(model, dev->id);
2996 g_free(model);
2997 } else {
2998 audio_define_default(dev, &error_fatal);
2999 }
3000 break;
3001 }
3002 case QEMU_OPTION_h:
3003 help(0);
3004 break;
3005 case QEMU_OPTION_version:
3006 version();
3007 exit(0);
3008 break;
3009 case QEMU_OPTION_m:
3010 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
3011 if (opts == NULL) {
3012 exit(1);
3013 }
3014 break;
3015 #ifdef CONFIG_TPM
3016 case QEMU_OPTION_tpmdev:
3017 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3018 exit(1);
3019 }
3020 break;
3021 #endif
3022 case QEMU_OPTION_mempath:
3023 mem_path = optarg;
3024 break;
3025 case QEMU_OPTION_mem_prealloc:
3026 mem_prealloc = 1;
3027 break;
3028 case QEMU_OPTION_d:
3029 log_mask = optarg;
3030 break;
3031 case QEMU_OPTION_D:
3032 log_file = optarg;
3033 break;
3034 case QEMU_OPTION_DFILTER:
3035 qemu_set_dfilter_ranges(optarg, &error_fatal);
3036 break;
3037 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3038 case QEMU_OPTION_perfmap:
3039 perf_enable_perfmap();
3040 break;
3041 case QEMU_OPTION_jitdump:
3042 perf_enable_jitdump();
3043 break;
3044 #endif
3045 case QEMU_OPTION_seed:
3046 qemu_guest_random_seed_main(optarg, &error_fatal);
3047 break;
3048 case QEMU_OPTION_s:
3049 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3050 break;
3051 case QEMU_OPTION_gdb:
3052 add_device_config(DEV_GDB, optarg);
3053 break;
3054 case QEMU_OPTION_L:
3055 if (is_help_option(optarg)) {
3056 list_data_dirs = true;
3057 } else {
3058 qemu_add_data_dir(g_strdup(optarg));
3059 }
3060 break;
3061 case QEMU_OPTION_bios:
3062 qdict_put_str(machine_opts_dict, "firmware", optarg);
3063 break;
3064 case QEMU_OPTION_S:
3065 autostart = 0;
3066 break;
3067 case QEMU_OPTION_k:
3068 keyboard_layout = optarg;
3069 break;
3070 case QEMU_OPTION_vga:
3071 vga_model = optarg;
3072 default_vga = 0;
3073 break;
3074 case QEMU_OPTION_g:
3075 {
3076 const char *p;
3077 int w, h, depth;
3078 p = optarg;
3079 w = strtol(p, (char **)&p, 10);
3080 if (w <= 0) {
3081 graphic_error:
3082 error_report("invalid resolution or depth");
3083 exit(1);
3084 }
3085 if (*p != 'x')
3086 goto graphic_error;
3087 p++;
3088 h = strtol(p, (char **)&p, 10);
3089 if (h <= 0)
3090 goto graphic_error;
3091 if (*p == 'x') {
3092 p++;
3093 depth = strtol(p, (char **)&p, 10);
3094 if (depth != 1 && depth != 2 && depth != 4 &&
3095 depth != 8 && depth != 15 && depth != 16 &&
3096 depth != 24 && depth != 32)
3097 goto graphic_error;
3098 } else if (*p == '\0') {
3099 depth = graphic_depth;
3100 } else {
3101 goto graphic_error;
3102 }
3103
3104 graphic_width = w;
3105 graphic_height = h;
3106 graphic_depth = depth;
3107 }
3108 break;
3109 case QEMU_OPTION_echr:
3110 {
3111 char *r;
3112 term_escape_char = strtol(optarg, &r, 0);
3113 if (r == optarg)
3114 printf("Bad argument to echr\n");
3115 break;
3116 }
3117 case QEMU_OPTION_monitor:
3118 default_monitor = 0;
3119 if (strncmp(optarg, "none", 4)) {
3120 monitor_parse(optarg, "readline", false);
3121 }
3122 break;
3123 case QEMU_OPTION_qmp:
3124 monitor_parse(optarg, "control", false);
3125 default_monitor = 0;
3126 break;
3127 case QEMU_OPTION_qmp_pretty:
3128 monitor_parse(optarg, "control", true);
3129 default_monitor = 0;
3130 break;
3131 case QEMU_OPTION_mon:
3132 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3133 true);
3134 if (!opts) {
3135 exit(1);
3136 }
3137 default_monitor = 0;
3138 break;
3139 case QEMU_OPTION_chardev:
3140 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3141 optarg, true);
3142 if (!opts) {
3143 exit(1);
3144 }
3145 break;
3146 case QEMU_OPTION_fsdev:
3147 olist = qemu_find_opts("fsdev");
3148 if (!olist) {
3149 error_report("fsdev support is disabled");
3150 exit(1);
3151 }
3152 opts = qemu_opts_parse_noisily(olist, optarg, true);
3153 if (!opts) {
3154 exit(1);
3155 }
3156 break;
3157 case QEMU_OPTION_virtfs: {
3158 QemuOpts *fsdev;
3159 QemuOpts *device;
3160 const char *writeout, *sock_fd, *socket, *path, *security_model,
3161 *multidevs;
3162
3163 olist = qemu_find_opts("virtfs");
3164 if (!olist) {
3165 error_report("virtfs support is disabled");
3166 exit(1);
3167 }
3168 opts = qemu_opts_parse_noisily(olist, optarg, true);
3169 if (!opts) {
3170 exit(1);
3171 }
3172
3173 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3174 qemu_opt_get(opts, "mount_tag") == NULL) {
3175 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3176 exit(1);
3177 }
3178 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3179 qemu_opts_id(opts) ?:
3180 qemu_opt_get(opts, "mount_tag"),
3181 1, NULL);
3182 if (!fsdev) {
3183 error_report("duplicate or invalid fsdev id: %s",
3184 qemu_opt_get(opts, "mount_tag"));
3185 exit(1);
3186 }
3187
3188 writeout = qemu_opt_get(opts, "writeout");
3189 if (writeout) {
3190 #ifdef CONFIG_SYNC_FILE_RANGE
3191 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3192 #else
3193 error_report("writeout=immediate not supported "
3194 "on this platform");
3195 exit(1);
3196 #endif
3197 }
3198 qemu_opt_set(fsdev, "fsdriver",
3199 qemu_opt_get(opts, "fsdriver"), &error_abort);
3200 path = qemu_opt_get(opts, "path");
3201 if (path) {
3202 qemu_opt_set(fsdev, "path", path, &error_abort);
3203 }
3204 security_model = qemu_opt_get(opts, "security_model");
3205 if (security_model) {
3206 qemu_opt_set(fsdev, "security_model", security_model,
3207 &error_abort);
3208 }
3209 socket = qemu_opt_get(opts, "socket");
3210 if (socket) {
3211 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3212 }
3213 sock_fd = qemu_opt_get(opts, "sock_fd");
3214 if (sock_fd) {
3215 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3216 }
3217
3218 qemu_opt_set_bool(fsdev, "readonly",
3219 qemu_opt_get_bool(opts, "readonly", 0),
3220 &error_abort);
3221 multidevs = qemu_opt_get(opts, "multidevs");
3222 if (multidevs) {
3223 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3224 }
3225 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3226 &error_abort);
3227 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3228 qemu_opt_set(device, "fsdev",
3229 qemu_opts_id(fsdev), &error_abort);
3230 qemu_opt_set(device, "mount_tag",
3231 qemu_opt_get(opts, "mount_tag"), &error_abort);
3232 break;
3233 }
3234 case QEMU_OPTION_serial:
3235 add_device_config(DEV_SERIAL, optarg);
3236 default_serial = 0;
3237 if (strncmp(optarg, "mon:", 4) == 0) {
3238 default_monitor = 0;
3239 }
3240 break;
3241 case QEMU_OPTION_action:
3242 olist = qemu_find_opts("action");
3243 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3244 exit(1);
3245 }
3246 break;
3247 case QEMU_OPTION_watchdog_action: {
3248 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3249 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3250 break;
3251 }
3252 case QEMU_OPTION_parallel:
3253 add_device_config(DEV_PARALLEL, optarg);
3254 default_parallel = 0;
3255 if (strncmp(optarg, "mon:", 4) == 0) {
3256 default_monitor = 0;
3257 }
3258 break;
3259 case QEMU_OPTION_debugcon:
3260 add_device_config(DEV_DEBUGCON, optarg);
3261 break;
3262 case QEMU_OPTION_loadvm:
3263 loadvm = optarg;
3264 break;
3265 case QEMU_OPTION_full_screen:
3266 dpy.has_full_screen = true;
3267 dpy.full_screen = true;
3268 break;
3269 case QEMU_OPTION_pidfile:
3270 pid_file = optarg;
3271 break;
3272 case QEMU_OPTION_win2k_hack:
3273 object_register_sugar_prop("ide-device", "win2k-install-hack", "true", true);
3274 break;
3275 case QEMU_OPTION_acpitable:
3276 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3277 optarg, true);
3278 if (!opts) {
3279 exit(1);
3280 }
3281 acpi_table_add(opts, &error_fatal);
3282 break;
3283 case QEMU_OPTION_smbios:
3284 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3285 optarg, false);
3286 if (!opts) {
3287 exit(1);
3288 }
3289 smbios_entry_add(opts, &error_fatal);
3290 break;
3291 case QEMU_OPTION_fwcfg:
3292 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3293 optarg, true);
3294 if (opts == NULL) {
3295 exit(1);
3296 }
3297 break;
3298 case QEMU_OPTION_preconfig:
3299 preconfig_requested = true;
3300 break;
3301 case QEMU_OPTION_enable_kvm:
3302 qdict_put_str(machine_opts_dict, "accel", "kvm");
3303 break;
3304 case QEMU_OPTION_M:
3305 case QEMU_OPTION_machine:
3306 {
3307 bool help;
3308
3309 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3310 if (help) {
3311 machine_help_func(machine_opts_dict);
3312 exit(EXIT_SUCCESS);
3313 }
3314 break;
3315 }
3316 case QEMU_OPTION_accel:
3317 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3318 optarg, true);
3319 optarg = qemu_opt_get(accel_opts, "accel");
3320 if (!optarg || is_help_option(optarg)) {
3321 printf("Accelerators supported in QEMU binary:\n");
3322 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3323 false);
3324 for (el = accel_list; el; el = el->next) {
3325 gchar *typename = g_strdup(object_class_get_name(
3326 OBJECT_CLASS(el->data)));
3327 /* omit qtest which is used for tests only */
3328 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3329 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3330 gchar **optname = g_strsplit(typename,
3331 ACCEL_CLASS_SUFFIX, 0);
3332 printf("%s\n", optname[0]);
3333 g_strfreev(optname);
3334 }
3335 g_free(typename);
3336 }
3337 g_slist_free(accel_list);
3338 exit(0);
3339 }
3340 break;
3341 case QEMU_OPTION_usb:
3342 qdict_put_str(machine_opts_dict, "usb", "on");
3343 break;
3344 case QEMU_OPTION_usbdevice:
3345 qdict_put_str(machine_opts_dict, "usb", "on");
3346 add_device_config(DEV_USB, optarg);
3347 break;
3348 case QEMU_OPTION_device:
3349 if (optarg[0] == '{') {
3350 QObject *obj = qobject_from_json(optarg, &error_fatal);
3351 DeviceOption *opt = g_new0(DeviceOption, 1);
3352 opt->opts = qobject_to(QDict, obj);
3353 loc_save(&opt->loc);
3354 assert(opt->opts != NULL);
3355 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3356 } else {
3357 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3358 optarg, true)) {
3359 exit(1);
3360 }
3361 }
3362 break;
3363 case QEMU_OPTION_smp:
3364 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3365 "smp", optarg);
3366 break;
3367 #ifdef CONFIG_VNC
3368 case QEMU_OPTION_vnc:
3369 vnc_parse(optarg);
3370 display_remote++;
3371 break;
3372 #endif
3373 case QEMU_OPTION_no_reboot:
3374 olist = qemu_find_opts("action");
3375 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3376 break;
3377 case QEMU_OPTION_no_shutdown:
3378 olist = qemu_find_opts("action");
3379 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3380 break;
3381 case QEMU_OPTION_uuid:
3382 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3383 error_report("failed to parse UUID string: wrong format");
3384 exit(1);
3385 }
3386 qemu_uuid_set = true;
3387 break;
3388 case QEMU_OPTION_option_rom:
3389 if (nb_option_roms >= MAX_OPTION_ROMS) {
3390 error_report("too many option ROMs");
3391 exit(1);
3392 }
3393 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3394 optarg, true);
3395 if (!opts) {
3396 exit(1);
3397 }
3398 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3399 option_rom[nb_option_roms].bootindex =
3400 qemu_opt_get_number(opts, "bootindex", -1);
3401 if (!option_rom[nb_option_roms].name) {
3402 error_report("Option ROM file is not specified");
3403 exit(1);
3404 }
3405 nb_option_roms++;
3406 break;
3407 case QEMU_OPTION_semihosting:
3408 qemu_semihosting_enable();
3409 break;
3410 case QEMU_OPTION_semihosting_config:
3411 if (qemu_semihosting_config_options(optarg) != 0) {
3412 exit(1);
3413 }
3414 break;
3415 case QEMU_OPTION_name:
3416 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3417 optarg, true);
3418 if (!opts) {
3419 exit(1);
3420 }
3421 /* Capture guest name if -msg guest-name is used later */
3422 error_guest_name = qemu_opt_get(opts, "guest");
3423 break;
3424 case QEMU_OPTION_prom_env:
3425 if (nb_prom_envs >= MAX_PROM_ENVS) {
3426 error_report("too many prom variables");
3427 exit(1);
3428 }
3429 prom_envs[nb_prom_envs] = optarg;
3430 nb_prom_envs++;
3431 break;
3432 case QEMU_OPTION_old_param:
3433 old_param = 1;
3434 break;
3435 case QEMU_OPTION_rtc:
3436 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3437 false);
3438 if (!opts) {
3439 exit(1);
3440 }
3441 break;
3442 case QEMU_OPTION_icount:
3443 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3444 optarg, true);
3445 if (!icount_opts) {
3446 exit(1);
3447 }
3448 break;
3449 case QEMU_OPTION_incoming:
3450 if (!incoming) {
3451 runstate_set(RUN_STATE_INMIGRATE);
3452 }
3453 incoming = optarg;
3454 break;
3455 case QEMU_OPTION_only_migratable:
3456 only_migratable = 1;
3457 break;
3458 case QEMU_OPTION_nodefaults:
3459 has_defaults = 0;
3460 break;
3461 case QEMU_OPTION_xen_domid:
3462 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3463 error_report("Option not supported for this target");
3464 exit(1);
3465 }
3466 xen_domid = atoi(optarg);
3467 break;
3468 case QEMU_OPTION_xen_attach:
3469 if (!(accel_find("xen"))) {
3470 error_report("Option not supported for this target");
3471 exit(1);
3472 }
3473 xen_mode = XEN_ATTACH;
3474 break;
3475 case QEMU_OPTION_xen_domid_restrict:
3476 if (!(accel_find("xen"))) {
3477 error_report("Option not supported for this target");
3478 exit(1);
3479 }
3480 xen_domid_restrict = true;
3481 break;
3482 case QEMU_OPTION_trace:
3483 trace_opt_parse(optarg);
3484 break;
3485 case QEMU_OPTION_plugin:
3486 qemu_plugin_opt_parse(optarg, &plugin_list);
3487 break;
3488 case QEMU_OPTION_readconfig:
3489 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3490 break;
3491 #ifdef CONFIG_SPICE
3492 case QEMU_OPTION_spice:
3493 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false);
3494 if (!opts) {
3495 exit(1);
3496 }
3497 display_remote++;
3498 break;
3499 #endif
3500 case QEMU_OPTION_qtest:
3501 qtest_chrdev = optarg;
3502 break;
3503 case QEMU_OPTION_qtest_log:
3504 qtest_log = optarg;
3505 break;
3506 case QEMU_OPTION_sandbox:
3507 olist = qemu_find_opts("sandbox");
3508 if (!olist) {
3509 #ifndef CONFIG_SECCOMP
3510 error_report("-sandbox support is not enabled "
3511 "in this QEMU binary");
3512 #endif
3513 exit(1);
3514 }
3515
3516 opts = qemu_opts_parse_noisily(olist, optarg, true);
3517 if (!opts) {
3518 exit(1);
3519 }
3520 break;
3521 case QEMU_OPTION_add_fd:
3522 #ifndef _WIN32
3523 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3524 optarg, false);
3525 if (!opts) {
3526 exit(1);
3527 }
3528 #else
3529 error_report("File descriptor passing is disabled on this "
3530 "platform");
3531 exit(1);
3532 #endif
3533 break;
3534 case QEMU_OPTION_object:
3535 object_option_parse(optarg);
3536 break;
3537 case QEMU_OPTION_overcommit:
3538 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3539 optarg, false);
3540 if (!opts) {
3541 exit(1);
3542 }
3543 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3544 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3545 break;
3546 case QEMU_OPTION_compat:
3547 {
3548 CompatPolicy *opts_policy;
3549 Visitor *v;
3550
3551 v = qobject_input_visitor_new_str(optarg, NULL,
3552 &error_fatal);
3553
3554 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3555 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3556
3557 qapi_free_CompatPolicy(opts_policy);
3558 visit_free(v);
3559 break;
3560 }
3561 case QEMU_OPTION_msg:
3562 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3563 false);
3564 if (!opts) {
3565 exit(1);
3566 }
3567 configure_msg(opts);
3568 break;
3569 case QEMU_OPTION_dump_vmstate:
3570 if (vmstate_dump_file) {
3571 error_report("only one '-dump-vmstate' "
3572 "option may be given");
3573 exit(1);
3574 }
3575 vmstate_dump_file = fopen(optarg, "w");
3576 if (vmstate_dump_file == NULL) {
3577 error_report("open %s: %s", optarg, strerror(errno));
3578 exit(1);
3579 }
3580 break;
3581 case QEMU_OPTION_enable_sync_profile:
3582 qsp_enable();
3583 break;
3584 case QEMU_OPTION_nouserconfig:
3585 /* Nothing to be parsed here. Especially, do not error out below. */
3586 break;
3587 #if defined(CONFIG_POSIX)
3588 case QEMU_OPTION_runas:
3589 if (!os_set_runas(optarg)) {
3590 error_report("User \"%s\" doesn't exist"
3591 " (and is not <uid>:<gid>)",
3592 optarg);
3593 exit(1);
3594 }
3595 break;
3596 case QEMU_OPTION_daemonize:
3597 os_set_daemonize(true);
3598 break;
3599 case QEMU_OPTION_run_with: {
3600 const char *str;
3601 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3602 optarg, false);
3603 if (!opts) {
3604 exit(1);
3605 }
3606 #if defined(CONFIG_LINUX)
3607 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3608 init_async_teardown();
3609 }
3610 #endif
3611 str = qemu_opt_get(opts, "chroot");
3612 if (str) {
3613 os_set_chroot(str);
3614 }
3615 break;
3616 }
3617 #endif /* CONFIG_POSIX */
3618
3619 default:
3620 error_report("Option not supported in this build");
3621 exit(1);
3622 }
3623 }
3624 }
3625 /*
3626 * Clear error location left behind by the loop.
3627 * Best done right after the loop. Do not insert code here!
3628 */
3629 loc_set_none();
3630
3631 qemu_validate_options(machine_opts_dict);
3632 qemu_process_sugar_options();
3633
3634 /*
3635 * These options affect everything else and should be processed
3636 * before daemonizing.
3637 */
3638 qemu_process_early_options();
3639
3640 qemu_process_help_options();
3641 qemu_maybe_daemonize(pid_file);
3642
3643 /*
3644 * The trace backend must be initialized after daemonizing.
3645 * trace_init_backends() will call st_init(), which will create the
3646 * trace thread in the parent, and also register st_flush_trace_buffer()
3647 * in atexit(). This function will force the parent to wait for the
3648 * writeout thread to finish, which will not occur, and the parent
3649 * process will be left in the host.
3650 */
3651 if (!trace_init_backends()) {
3652 exit(1);
3653 }
3654 trace_init_file();
3655
3656 qemu_init_main_loop(&error_fatal);
3657 cpu_timers_init();
3658
3659 user_register_global_props();
3660 replay_configure(icount_opts);
3661
3662 configure_rtc(qemu_find_opts_singleton("rtc"));
3663
3664 /* Transfer QemuOpts options into machine options */
3665 parse_memory_options();
3666
3667 qemu_create_machine(machine_opts_dict);
3668
3669 suspend_mux_open();
3670
3671 qemu_disable_default_devices();
3672 qemu_setup_display();
3673 qemu_create_default_devices();
3674 qemu_create_early_backends();
3675
3676 qemu_apply_legacy_machine_options(machine_opts_dict);
3677 qemu_apply_machine_options(machine_opts_dict);
3678 qobject_unref(machine_opts_dict);
3679 phase_advance(PHASE_MACHINE_CREATED);
3680
3681 /*
3682 * Note: uses machine properties such as kernel-irqchip, must run
3683 * after qemu_apply_machine_options.
3684 */
3685 configure_accelerators(argv[0]);
3686 phase_advance(PHASE_ACCEL_CREATED);
3687
3688 /*
3689 * Beware, QOM objects created before this point miss global and
3690 * compat properties.
3691 *
3692 * Global properties get set up by qdev_prop_register_global(),
3693 * called from user_register_global_props(), and certain option
3694 * desugaring. Also in CPU feature desugaring (buried in
3695 * parse_cpu_option()), which happens below this point, but may
3696 * only target the CPU type, which can only be created after
3697 * parse_cpu_option() returned the type.
3698 *
3699 * Machine compat properties: object_set_machine_compat_props().
3700 * Accelerator compat props: object_set_accelerator_compat_props(),
3701 * called from do_configure_accelerator().
3702 */
3703
3704 machine_class = MACHINE_GET_CLASS(current_machine);
3705 if (!qtest_enabled() && machine_class->deprecation_reason) {
3706 warn_report("Machine type '%s' is deprecated: %s",
3707 machine_class->name, machine_class->deprecation_reason);
3708 }
3709
3710 /*
3711 * Create backends before creating migration objects, so that it can
3712 * check against compatibilities on the backend memories (e.g. postcopy
3713 * over memory-backend-file objects).
3714 */
3715 qemu_create_late_backends();
3716 phase_advance(PHASE_LATE_BACKENDS_CREATED);
3717
3718 /*
3719 * Note: creates a QOM object, must run only after global and
3720 * compat properties have been set up.
3721 */
3722 migration_object_init();
3723
3724 /* parse features once if machine provides default cpu_type */
3725 current_machine->cpu_type = machine_class_default_cpu_type(machine_class);
3726 if (cpu_option) {
3727 current_machine->cpu_type = parse_cpu_option(cpu_option);
3728 }
3729 /* NB: for machine none cpu_type could STILL be NULL here! */
3730
3731 qemu_resolve_machine_memdev();
3732 parse_numa_opts(current_machine);
3733
3734 if (vmstate_dump_file) {
3735 /* dump and exit */
3736 module_load_qom_all();
3737 dump_vmstate_json_to_file(vmstate_dump_file);
3738 exit(0);
3739 }
3740
3741 if (!preconfig_requested) {
3742 qmp_x_exit_preconfig(&error_fatal);
3743 }
3744 qemu_init_displays();
3745 accel_setup_post(current_machine);
3746 os_setup_post();
3747 resume_mux_open();
3748 }
armbru's QEMU hackery