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migration: set file error on subsection loading
[qemu/ar7.git] / system / vl.c
blob92d29bf5213d271518279b7f9020e8a2b1acb76f
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu/help-texts.h"
27 #include "qemu/datadir.h"
28 #include "qemu/units.h"
29 #include "exec/cpu-common.h"
30 #include "exec/page-vary.h"
31 #include "hw/qdev-properties.h"
32 #include "qapi/compat-policy.h"
33 #include "qapi/error.h"
34 #include "qapi/qmp/qdict.h"
35 #include "qapi/qmp/qstring.h"
36 #include "qapi/qmp/qjson.h"
37 #include "qemu-version.h"
38 #include "qemu/cutils.h"
39 #include "qemu/help_option.h"
40 #include "qemu/hw-version.h"
41 #include "qemu/uuid.h"
42 #include "sysemu/reset.h"
43 #include "sysemu/runstate.h"
44 #include "sysemu/runstate-action.h"
45 #include "sysemu/seccomp.h"
46 #include "sysemu/tcg.h"
47 #include "sysemu/xen.h"
48
49 #include "qemu/error-report.h"
50 #include "qemu/sockets.h"
51 #include "qemu/accel.h"
52 #include "qemu/async-teardown.h"
53 #include "hw/usb.h"
54 #include "hw/isa/isa.h"
55 #include "hw/scsi/scsi.h"
56 #include "hw/display/vga.h"
57 #include "hw/firmware/smbios.h"
58 #include "hw/acpi/acpi.h"
59 #include "hw/xen/xen.h"
60 #include "hw/loader.h"
61 #include "monitor/qdev.h"
62 #include "net/net.h"
63 #include "net/slirp.h"
64 #include "monitor/monitor.h"
65 #include "ui/console.h"
66 #include "ui/input.h"
67 #include "sysemu/sysemu.h"
68 #include "sysemu/numa.h"
69 #include "sysemu/hostmem.h"
70 #include "exec/gdbstub.h"
71 #include "qemu/timer.h"
72 #include "chardev/char.h"
73 #include "qemu/bitmap.h"
74 #include "qemu/log.h"
75 #include "sysemu/blockdev.h"
76 #include "hw/block/block.h"
77 #include "hw/i386/x86.h"
78 #include "hw/i386/pc.h"
79 #include "migration/misc.h"
80 #include "migration/snapshot.h"
81 #include "sysemu/tpm.h"
82 #include "sysemu/dma.h"
83 #include "hw/audio/soundhw.h"
84 #include "audio/audio.h"
85 #include "sysemu/cpus.h"
86 #include "sysemu/cpu-timers.h"
87 #include "migration/colo.h"
88 #include "migration/postcopy-ram.h"
89 #include "sysemu/kvm.h"
90 #include "qapi/qobject-input-visitor.h"
91 #include "qemu/option.h"
92 #include "qemu/config-file.h"
93 #include "qemu/main-loop.h"
94 #ifdef CONFIG_VIRTFS
95 #include "fsdev/qemu-fsdev.h"
96 #endif
97 #include "sysemu/qtest.h"
98 #ifdef CONFIG_TCG
99 #include "accel/tcg/perf.h"
100 #endif
101
102 #include "disas/disas.h"
103
104 #include "trace.h"
105 #include "trace/control.h"
106 #include "qemu/plugin.h"
107 #include "qemu/queue.h"
108 #include "sysemu/arch_init.h"
109 #include "exec/confidential-guest-support.h"
110
111 #include "ui/qemu-spice.h"
112 #include "qapi/string-input-visitor.h"
113 #include "qapi/opts-visitor.h"
114 #include "qapi/clone-visitor.h"
115 #include "qom/object_interfaces.h"
116 #include "semihosting/semihost.h"
117 #include "crypto/init.h"
118 #include "sysemu/replay.h"
119 #include "qapi/qapi-events-run-state.h"
120 #include "qapi/qapi-types-audio.h"
121 #include "qapi/qapi-visit-audio.h"
122 #include "qapi/qapi-visit-block-core.h"
123 #include "qapi/qapi-visit-compat.h"
124 #include "qapi/qapi-visit-machine.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-migration.h"
128 #include "qapi/qapi-commands-misc.h"
129 #include "qapi/qapi-visit-qom.h"
130 #include "qapi/qapi-commands-ui.h"
131 #include "block/qdict.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134 #include "qemu/guest-random.h"
135 #include "qemu/keyval.h"
136
137 #define MAX_VIRTIO_CONSOLES 1
138
139 typedef struct BlockdevOptionsQueueEntry {
140 BlockdevOptions *bdo;
141 Location loc;
142 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
143 } BlockdevOptionsQueueEntry;
144
145 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
146
147 typedef struct ObjectOption {
148 ObjectOptions *opts;
149 QTAILQ_ENTRY(ObjectOption) next;
150 } ObjectOption;
151
152 typedef struct DeviceOption {
153 QDict *opts;
154 Location loc;
155 QTAILQ_ENTRY(DeviceOption) next;
156 } DeviceOption;
157
158 static const char *cpu_option;
159 static const char *mem_path;
160 static const char *incoming;
161 static const char *loadvm;
162 static const char *accelerators;
163 static bool have_custom_ram_size;
164 static const char *ram_memdev_id;
165 static QDict *machine_opts_dict;
166 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
167 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
168 static int display_remote;
169 static int snapshot;
170 static bool preconfig_requested;
171 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
172 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
173 static bool nographic = false;
174 static int mem_prealloc; /* force preallocation of physical target memory */
175 static const char *vga_model = NULL;
176 static DisplayOptions dpy;
177 static int num_serial_hds;
178 static Chardev **serial_hds;
179 static const char *log_mask;
180 static const char *log_file;
181 static bool list_data_dirs;
182 static const char *qtest_chrdev;
183 static const char *qtest_log;
184 static bool opt_one_insn_per_tb;
185
186 static int has_defaults = 1;
187 static int default_audio = 1;
188 static int default_serial = 1;
189 static int default_parallel = 1;
190 static int default_monitor = 1;
191 static int default_floppy = 1;
192 static int default_cdrom = 1;
193 static int default_sdcard = 1;
194 static int default_vga = 1;
195 static int default_net = 1;
196
197 static struct {
198 const char *driver;
199 int *flag;
200 } default_list[] = {
201 { .driver = "isa-serial", .flag = &default_serial },
202 { .driver = "isa-parallel", .flag = &default_parallel },
203 { .driver = "isa-fdc", .flag = &default_floppy },
204 { .driver = "floppy", .flag = &default_floppy },
205 { .driver = "ide-cd", .flag = &default_cdrom },
206 { .driver = "ide-hd", .flag = &default_cdrom },
207 { .driver = "scsi-cd", .flag = &default_cdrom },
208 { .driver = "scsi-hd", .flag = &default_cdrom },
209 { .driver = "VGA", .flag = &default_vga },
210 { .driver = "isa-vga", .flag = &default_vga },
211 { .driver = "cirrus-vga", .flag = &default_vga },
212 { .driver = "isa-cirrus-vga", .flag = &default_vga },
213 { .driver = "vmware-svga", .flag = &default_vga },
214 { .driver = "qxl-vga", .flag = &default_vga },
215 { .driver = "virtio-vga", .flag = &default_vga },
216 { .driver = "ati-vga", .flag = &default_vga },
217 { .driver = "vhost-user-vga", .flag = &default_vga },
218 { .driver = "virtio-vga-gl", .flag = &default_vga },
219 { .driver = "virtio-vga-rutabaga", .flag = &default_vga },
220 };
221
222 static QemuOptsList qemu_rtc_opts = {
223 .name = "rtc",
224 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
225 .merge_lists = true,
226 .desc = {
227 {
228 .name = "base",
229 .type = QEMU_OPT_STRING,
230 },{
231 .name = "clock",
232 .type = QEMU_OPT_STRING,
233 },{
234 .name = "driftfix",
235 .type = QEMU_OPT_STRING,
236 },
237 { /* end of list */ }
238 },
239 };
240
241 static QemuOptsList qemu_option_rom_opts = {
242 .name = "option-rom",
243 .implied_opt_name = "romfile",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
245 .desc = {
246 {
247 .name = "bootindex",
248 .type = QEMU_OPT_NUMBER,
249 }, {
250 .name = "romfile",
251 .type = QEMU_OPT_STRING,
252 },
253 { /* end of list */ }
254 },
255 };
256
257 static QemuOptsList qemu_accel_opts = {
258 .name = "accel",
259 .implied_opt_name = "accel",
260 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
261 .desc = {
262 /*
263 * no elements => accept any
264 * sanity checking will happen later
265 * when setting accelerator properties
266 */
267 { }
268 },
269 };
270
271 static QemuOptsList qemu_boot_opts = {
272 .name = "boot-opts",
273 .implied_opt_name = "order",
274 .merge_lists = true,
275 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
276 .desc = {
277 {
278 .name = "order",
279 .type = QEMU_OPT_STRING,
280 }, {
281 .name = "once",
282 .type = QEMU_OPT_STRING,
283 }, {
284 .name = "menu",
285 .type = QEMU_OPT_BOOL,
286 }, {
287 .name = "splash",
288 .type = QEMU_OPT_STRING,
289 }, {
290 .name = "splash-time",
291 .type = QEMU_OPT_NUMBER,
292 }, {
293 .name = "reboot-timeout",
294 .type = QEMU_OPT_NUMBER,
295 }, {
296 .name = "strict",
297 .type = QEMU_OPT_BOOL,
298 },
299 { /*End of list */ }
300 },
301 };
302
303 static QemuOptsList qemu_add_fd_opts = {
304 .name = "add-fd",
305 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
306 .desc = {
307 {
308 .name = "fd",
309 .type = QEMU_OPT_NUMBER,
310 .help = "file descriptor of which a duplicate is added to fd set",
311 },{
312 .name = "set",
313 .type = QEMU_OPT_NUMBER,
314 .help = "ID of the fd set to add fd to",
315 },{
316 .name = "opaque",
317 .type = QEMU_OPT_STRING,
318 .help = "free-form string used to describe fd",
319 },
320 { /* end of list */ }
321 },
322 };
323
324 static QemuOptsList qemu_object_opts = {
325 .name = "object",
326 .implied_opt_name = "qom-type",
327 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
328 .desc = {
329 { }
330 },
331 };
332
333 static QemuOptsList qemu_tpmdev_opts = {
334 .name = "tpmdev",
335 .implied_opt_name = "type",
336 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
337 .desc = {
338 /* options are defined in the TPM backends */
339 { /* end of list */ }
340 },
341 };
342
343 static QemuOptsList qemu_overcommit_opts = {
344 .name = "overcommit",
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
346 .desc = {
347 {
348 .name = "mem-lock",
349 .type = QEMU_OPT_BOOL,
350 },
351 {
352 .name = "cpu-pm",
353 .type = QEMU_OPT_BOOL,
354 },
355 { /* end of list */ }
356 },
357 };
358
359 static QemuOptsList qemu_msg_opts = {
360 .name = "msg",
361 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
362 .desc = {
363 {
364 .name = "timestamp",
365 .type = QEMU_OPT_BOOL,
366 },
367 {
368 .name = "guest-name",
369 .type = QEMU_OPT_BOOL,
370 .help = "Prepends guest name for error messages but only if "
371 "-name guest is set otherwise option is ignored\n",
372 },
373 { /* end of list */ }
374 },
375 };
376
377 static QemuOptsList qemu_name_opts = {
378 .name = "name",
379 .implied_opt_name = "guest",
380 .merge_lists = true,
381 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
382 .desc = {
383 {
384 .name = "guest",
385 .type = QEMU_OPT_STRING,
386 .help = "Sets the name of the guest.\n"
387 "This name will be displayed in the SDL window caption.\n"
388 "The name will also be used for the VNC server",
389 }, {
390 .name = "process",
391 .type = QEMU_OPT_STRING,
392 .help = "Sets the name of the QEMU process, as shown in top etc",
393 }, {
394 .name = "debug-threads",
395 .type = QEMU_OPT_BOOL,
396 .help = "When enabled, name the individual threads; defaults off.\n"
397 "NOTE: The thread names are for debugging and not a\n"
398 "stable API.",
399 },
400 { /* End of list */ }
401 },
402 };
403
404 static QemuOptsList qemu_mem_opts = {
405 .name = "memory",
406 .implied_opt_name = "size",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
408 .merge_lists = true,
409 .desc = {
410 {
411 .name = "size",
412 .type = QEMU_OPT_SIZE,
413 },
414 {
415 .name = "slots",
416 .type = QEMU_OPT_NUMBER,
417 },
418 {
419 .name = "maxmem",
420 .type = QEMU_OPT_SIZE,
421 },
422 { /* end of list */ }
423 },
424 };
425
426 static QemuOptsList qemu_icount_opts = {
427 .name = "icount",
428 .implied_opt_name = "shift",
429 .merge_lists = true,
430 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
431 .desc = {
432 {
433 .name = "shift",
434 .type = QEMU_OPT_STRING,
435 }, {
436 .name = "align",
437 .type = QEMU_OPT_BOOL,
438 }, {
439 .name = "sleep",
440 .type = QEMU_OPT_BOOL,
441 }, {
442 .name = "rr",
443 .type = QEMU_OPT_STRING,
444 }, {
445 .name = "rrfile",
446 .type = QEMU_OPT_STRING,
447 }, {
448 .name = "rrsnapshot",
449 .type = QEMU_OPT_STRING,
450 },
451 { /* end of list */ }
452 },
453 };
454
455 static QemuOptsList qemu_fw_cfg_opts = {
456 .name = "fw_cfg",
457 .implied_opt_name = "name",
458 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
459 .desc = {
460 {
461 .name = "name",
462 .type = QEMU_OPT_STRING,
463 .help = "Sets the fw_cfg name of the blob to be inserted",
464 }, {
465 .name = "file",
466 .type = QEMU_OPT_STRING,
467 .help = "Sets the name of the file from which "
468 "the fw_cfg blob will be loaded",
469 }, {
470 .name = "string",
471 .type = QEMU_OPT_STRING,
472 .help = "Sets content of the blob to be inserted from a string",
473 }, {
474 .name = "gen_id",
475 .type = QEMU_OPT_STRING,
476 .help = "Sets id of the object generating the fw_cfg blob "
477 "to be inserted",
478 },
479 { /* end of list */ }
480 },
481 };
482
483 static QemuOptsList qemu_action_opts = {
484 .name = "action",
485 .merge_lists = true,
486 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
487 .desc = {
488 {
489 .name = "shutdown",
490 .type = QEMU_OPT_STRING,
491 },{
492 .name = "reboot",
493 .type = QEMU_OPT_STRING,
494 },{
495 .name = "panic",
496 .type = QEMU_OPT_STRING,
497 },{
498 .name = "watchdog",
499 .type = QEMU_OPT_STRING,
500 },
501 { /* end of list */ }
502 },
503 };
504
505 const char *qemu_get_vm_name(void)
506 {
507 return qemu_name;
508 }
509
510 static void default_driver_disable(const char *driver)
511 {
512 int i;
513
514 if (!driver) {
515 return;
516 }
517
518 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
519 if (strcmp(default_list[i].driver, driver) != 0)
520 continue;
521 *(default_list[i].flag) = 0;
522 }
523 }
524
525 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
526 {
527 const char *driver = qemu_opt_get(opts, "driver");
528
529 default_driver_disable(driver);
530 return 0;
531 }
532
533 static void default_driver_check_json(void)
534 {
535 DeviceOption *opt;
536
537 QTAILQ_FOREACH(opt, &device_opts, next) {
538 const char *driver = qdict_get_try_str(opt->opts, "driver");
539 default_driver_disable(driver);
540 }
541 }
542
543 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
544 {
545 const char *proc_name;
546
547 if (qemu_opt_get(opts, "debug-threads")) {
548 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
549 }
550 qemu_name = qemu_opt_get(opts, "guest");
551
552 proc_name = qemu_opt_get(opts, "process");
553 if (proc_name) {
554 os_set_proc_name(proc_name);
555 }
556
557 return 0;
558 }
559
560 bool defaults_enabled(void)
561 {
562 return has_defaults;
563 }
564
565 #ifndef _WIN32
566 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
567 {
568 int fd, dupfd, flags;
569 int64_t fdset_id;
570 const char *fd_opaque = NULL;
571 AddfdInfo *fdinfo;
572
573 fd = qemu_opt_get_number(opts, "fd", -1);
574 fdset_id = qemu_opt_get_number(opts, "set", -1);
575 fd_opaque = qemu_opt_get(opts, "opaque");
576
577 if (fd < 0) {
578 error_setg(errp, "fd option is required and must be non-negative");
579 return -1;
580 }
581
582 if (fd <= STDERR_FILENO) {
583 error_setg(errp, "fd cannot be a standard I/O stream");
584 return -1;
585 }
586
587 /*
588 * All fds inherited across exec() necessarily have FD_CLOEXEC
589 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
590 */
591 flags = fcntl(fd, F_GETFD);
592 if (flags == -1 || (flags & FD_CLOEXEC)) {
593 error_setg(errp, "fd is not valid or already in use");
594 return -1;
595 }
596
597 if (fdset_id < 0) {
598 error_setg(errp, "set option is required and must be non-negative");
599 return -1;
600 }
601
602 #ifdef F_DUPFD_CLOEXEC
603 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
604 #else
605 dupfd = dup(fd);
606 if (dupfd != -1) {
607 qemu_set_cloexec(dupfd);
608 }
609 #endif
610 if (dupfd == -1) {
611 error_setg(errp, "error duplicating fd: %s", strerror(errno));
612 return -1;
613 }
614
615 /* add the duplicate fd, and optionally the opaque string, to the fd set */
616 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque,
617 &error_abort);
618 g_free(fdinfo);
619
620 return 0;
621 }
622
623 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
624 {
625 int fd;
626
627 fd = qemu_opt_get_number(opts, "fd", -1);
628 close(fd);
629
630 return 0;
631 }
632 #endif
633
634 /***********************************************************/
635 /* QEMU Block devices */
636
637 #define HD_OPTS "media=disk"
638 #define CDROM_OPTS "media=cdrom"
639 #define FD_OPTS ""
640 #define PFLASH_OPTS ""
641 #define MTD_OPTS ""
642 #define SD_OPTS ""
643
644 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
645 {
646 BlockInterfaceType *block_default_type = opaque;
647
648 return drive_new(opts, *block_default_type, errp) == NULL;
649 }
650
651 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
652 {
653 if (qemu_opt_get(opts, "snapshot") == NULL) {
654 qemu_opt_set(opts, "snapshot", "on", &error_abort);
655 }
656 return 0;
657 }
658
659 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
660 int index, const char *optstr)
661 {
662 QemuOpts *opts;
663 DriveInfo *dinfo;
664
665 if (!enable || drive_get_by_index(type, index)) {
666 return;
667 }
668
669 opts = drive_add(type, index, NULL, optstr);
670 if (snapshot) {
671 drive_enable_snapshot(NULL, opts, NULL);
672 }
673
674 dinfo = drive_new(opts, type, &error_abort);
675 dinfo->is_default = true;
676
677 }
678
679 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
680 MachineClass *machine_class, int snapshot)
681 {
682 /*
683 * If the currently selected machine wishes to override the
684 * units-per-bus property of its default HBA interface type, do so
685 * now.
686 */
687 if (machine_class->units_per_default_bus) {
688 override_max_devs(machine_class->block_default_type,
689 machine_class->units_per_default_bus);
690 }
691
692 /* open the virtual block devices */
693 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
694 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
695
696 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
697 loc_push_restore(&bdo->loc);
698 qmp_blockdev_add(bdo->bdo, &error_fatal);
699 loc_pop(&bdo->loc);
700 qapi_free_BlockdevOptions(bdo->bdo);
701 g_free(bdo);
702 }
703 if (snapshot) {
704 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
705 NULL, NULL);
706 }
707 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
708 &machine_class->block_default_type, &error_fatal)) {
709 /* We printed help */
710 exit(0);
711 }
712
713 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
714 CDROM_OPTS);
715 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
716 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
717
718 }
719
720 static QemuOptsList qemu_smp_opts = {
721 .name = "smp-opts",
722 .implied_opt_name = "cpus",
723 .merge_lists = true,
724 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
725 .desc = {
726 {
727 .name = "cpus",
728 .type = QEMU_OPT_NUMBER,
729 }, {
730 .name = "drawers",
731 .type = QEMU_OPT_NUMBER,
732 }, {
733 .name = "books",
734 .type = QEMU_OPT_NUMBER,
735 }, {
736 .name = "sockets",
737 .type = QEMU_OPT_NUMBER,
738 }, {
739 .name = "dies",
740 .type = QEMU_OPT_NUMBER,
741 }, {
742 .name = "clusters",
743 .type = QEMU_OPT_NUMBER,
744 }, {
745 .name = "cores",
746 .type = QEMU_OPT_NUMBER,
747 }, {
748 .name = "threads",
749 .type = QEMU_OPT_NUMBER,
750 }, {
751 .name = "maxcpus",
752 .type = QEMU_OPT_NUMBER,
753 },
754 { /*End of list */ }
755 },
756 };
757
758 #if defined(CONFIG_POSIX)
759 static QemuOptsList qemu_run_with_opts = {
760 .name = "run-with",
761 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
762 .desc = {
763 #if defined(CONFIG_LINUX)
764 {
765 .name = "async-teardown",
766 .type = QEMU_OPT_BOOL,
767 },
768 #endif
769 {
770 .name = "chroot",
771 .type = QEMU_OPT_STRING,
772 },
773 { /* end of list */ }
774 },
775 };
776
777 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
778
779 #else
780
781 #define qemu_add_run_with_opts()
782
783 #endif /* CONFIG_POSIX */
784
785 static void realtime_init(void)
786 {
787 if (enable_mlock) {
788 if (os_mlock() < 0) {
789 error_report("locking memory failed");
790 exit(1);
791 }
792 }
793 }
794
795
796 static void configure_msg(QemuOpts *opts)
797 {
798 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
799 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
800 }
801
802
803 /***********************************************************/
804 /* USB devices */
805
806 static int usb_device_add(const char *devname)
807 {
808 USBDevice *dev = NULL;
809
810 if (!machine_usb(current_machine)) {
811 return -1;
812 }
813
814 dev = usbdevice_create(devname);
815 if (!dev)
816 return -1;
817
818 return 0;
819 }
820
821 static int usb_parse(const char *cmdline)
822 {
823 int r;
824 r = usb_device_add(cmdline);
825 if (r < 0) {
826 error_report("could not add USB device '%s'", cmdline);
827 }
828 return r;
829 }
830
831 /***********************************************************/
832 /* machine registration */
833
834 static MachineClass *find_machine(const char *name, GSList *machines)
835 {
836 GSList *el;
837
838 for (el = machines; el; el = el->next) {
839 MachineClass *mc = el->data;
840
841 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
842 return mc;
843 }
844 }
845
846 return NULL;
847 }
848
849 static MachineClass *find_default_machine(GSList *machines)
850 {
851 GSList *el;
852 MachineClass *default_machineclass = NULL;
853
854 for (el = machines; el; el = el->next) {
855 MachineClass *mc = el->data;
856
857 if (mc->is_default) {
858 assert(default_machineclass == NULL && "Multiple default machines");
859 default_machineclass = mc;
860 }
861 }
862
863 return default_machineclass;
864 }
865
866 static void version(void)
867 {
868 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
869 QEMU_COPYRIGHT "\n");
870 }
871
872 static void help(int exitcode)
873 {
874 version();
875 printf("usage: %s [options] [disk_image]\n\n"
876 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
877 g_get_prgname());
878
879 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
880 if ((arch_mask) & arch_type) \
881 fputs(opt_help, stdout);
882
883 #define ARCHHEADING(text, arch_mask) \
884 if ((arch_mask) & arch_type) \
885 puts(stringify(text));
886
887 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
888
889 #include "qemu-options.def"
890
891 printf("\nDuring emulation, the following keys are useful:\n"
892 "ctrl-alt-f toggle full screen\n"
893 "ctrl-alt-n switch to virtual console 'n'\n"
894 "ctrl-alt toggle mouse and keyboard grab\n"
895 "\n"
896 "When using -nographic, press 'ctrl-a h' to get some help.\n"
897 "\n"
898 QEMU_HELP_BOTTOM "\n");
899
900 exit(exitcode);
901 }
902
903 enum {
904
905 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
906 opt_enum,
907 #define DEFHEADING(text)
908 #define ARCHHEADING(text, arch_mask)
909
910 #include "qemu-options.def"
911 };
912
913 #define HAS_ARG 0x0001
914
915 typedef struct QEMUOption {
916 const char *name;
917 int flags;
918 int index;
919 uint32_t arch_mask;
920 } QEMUOption;
921
922 static const QEMUOption qemu_options[] = {
923 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
924
925 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
926 { option, opt_arg, opt_enum, arch_mask },
927 #define DEFHEADING(text)
928 #define ARCHHEADING(text, arch_mask)
929
930 #include "qemu-options.def"
931 { /* end of list */ }
932 };
933
934 typedef struct VGAInterfaceInfo {
935 const char *opt_name; /* option name */
936 const char *name; /* human-readable name */
937 /* Class names indicating that support is available.
938 * If no class is specified, the interface is always available */
939 const char *class_names[2];
940 } VGAInterfaceInfo;
941
942 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
943 [VGA_NONE] = {
944 .opt_name = "none",
945 .name = "no graphic card",
946 },
947 [VGA_STD] = {
948 .opt_name = "std",
949 .name = "standard VGA",
950 .class_names = { "VGA", "isa-vga" },
951 },
952 [VGA_CIRRUS] = {
953 .opt_name = "cirrus",
954 .name = "Cirrus VGA",
955 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
956 },
957 [VGA_VMWARE] = {
958 .opt_name = "vmware",
959 .name = "VMWare SVGA",
960 .class_names = { "vmware-svga" },
961 },
962 [VGA_VIRTIO] = {
963 .opt_name = "virtio",
964 .name = "Virtio VGA",
965 .class_names = { "virtio-vga" },
966 },
967 [VGA_QXL] = {
968 .opt_name = "qxl",
969 .name = "QXL VGA",
970 .class_names = { "qxl-vga" },
971 },
972 [VGA_TCX] = {
973 .opt_name = "tcx",
974 .name = "TCX framebuffer",
975 .class_names = { "sun-tcx" },
976 },
977 [VGA_CG3] = {
978 .opt_name = "cg3",
979 .name = "CG3 framebuffer",
980 .class_names = { "cgthree" },
981 },
982 #ifdef CONFIG_XEN_BACKEND
983 [VGA_XENFB] = {
984 .opt_name = "xenfb",
985 .name = "Xen paravirtualized framebuffer",
986 },
987 #endif
988 };
989
990 static bool vga_interface_available(VGAInterfaceType t)
991 {
992 const VGAInterfaceInfo *ti = &vga_interfaces[t];
993
994 assert(t < VGA_TYPE_MAX);
995 return !ti->class_names[0] ||
996 module_object_class_by_name(ti->class_names[0]) ||
997 module_object_class_by_name(ti->class_names[1]);
998 }
999
1000 static const char *
1001 get_default_vga_model(const MachineClass *machine_class)
1002 {
1003 if (machine_class->default_display) {
1004 for (int t = 0; t < VGA_TYPE_MAX; t++) {
1005 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1006
1007 if (ti->opt_name && vga_interface_available(t) &&
1008 g_str_equal(ti->opt_name, machine_class->default_display)) {
1009 return machine_class->default_display;
1010 }
1011 }
1012
1013 warn_report_once("Default display '%s' is not available in this binary",
1014 machine_class->default_display);
1015 return NULL;
1016 } else if (vga_interface_available(VGA_CIRRUS)) {
1017 return "cirrus";
1018 } else if (vga_interface_available(VGA_STD)) {
1019 return "std";
1020 }
1021
1022 return NULL;
1023 }
1024
1025 static void select_vgahw(const MachineClass *machine_class, const char *p)
1026 {
1027 const char *opts;
1028 int t;
1029
1030 if (g_str_equal(p, "help")) {
1031 const char *def = get_default_vga_model(machine_class);
1032
1033 for (t = 0; t < VGA_TYPE_MAX; t++) {
1034 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1035
1036 if (vga_interface_available(t) && ti->opt_name) {
1037 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1038 (def && g_str_equal(ti->opt_name, def)) ?
1039 " (default)" : "");
1040 }
1041 }
1042 exit(0);
1043 }
1044
1045 assert(vga_interface_type == VGA_NONE);
1046 for (t = 0; t < VGA_TYPE_MAX; t++) {
1047 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1048 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1049 if (!vga_interface_available(t)) {
1050 error_report("%s not available", ti->name);
1051 exit(1);
1052 }
1053 vga_interface_type = t;
1054 break;
1055 }
1056 }
1057 if (t == VGA_TYPE_MAX) {
1058 invalid_vga:
1059 error_report("unknown vga type: %s", p);
1060 exit(1);
1061 }
1062 while (*opts) {
1063 const char *nextopt;
1064
1065 if (strstart(opts, ",retrace=", &nextopt)) {
1066 opts = nextopt;
1067 if (strstart(opts, "dumb", &nextopt))
1068 vga_retrace_method = VGA_RETRACE_DUMB;
1069 else if (strstart(opts, "precise", &nextopt))
1070 vga_retrace_method = VGA_RETRACE_PRECISE;
1071 else goto invalid_vga;
1072 } else goto invalid_vga;
1073 opts = nextopt;
1074 }
1075 }
1076
1077 static void parse_display_qapi(const char *str)
1078 {
1079 DisplayOptions *opts;
1080 Visitor *v;
1081
1082 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1083
1084 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1085 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1086
1087 qapi_free_DisplayOptions(opts);
1088 visit_free(v);
1089 }
1090
1091 DisplayOptions *qmp_query_display_options(Error **errp)
1092 {
1093 return QAPI_CLONE(DisplayOptions, &dpy);
1094 }
1095
1096 static void parse_display(const char *p)
1097 {
1098 const char *opts;
1099
1100 if (is_help_option(p)) {
1101 qemu_display_help();
1102 exit(0);
1103 }
1104
1105 if (strstart(p, "vnc", &opts)) {
1106 /*
1107 * vnc isn't a (local) DisplayType but a protocol for remote
1108 * display access.
1109 */
1110 if (*opts == '=') {
1111 vnc_parse(opts + 1);
1112 } else {
1113 error_report("VNC requires a display argument vnc=<display>");
1114 exit(1);
1115 }
1116 } else {
1117 parse_display_qapi(p);
1118 }
1119 }
1120
1121 static inline bool nonempty_str(const char *str)
1122 {
1123 return str && *str;
1124 }
1125
1126 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1127 {
1128 gchar *buf;
1129 size_t size;
1130 const char *name, *file, *str, *gen_id;
1131 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1132
1133 if (fw_cfg == NULL) {
1134 error_setg(errp, "fw_cfg device not available");
1135 return -1;
1136 }
1137 name = qemu_opt_get(opts, "name");
1138 file = qemu_opt_get(opts, "file");
1139 str = qemu_opt_get(opts, "string");
1140 gen_id = qemu_opt_get(opts, "gen_id");
1141
1142 /* we need the name, and exactly one of: file, content string, gen_id */
1143 if (!nonempty_str(name) ||
1144 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1145 error_setg(errp, "name, plus exactly one of file,"
1146 " string and gen_id, are needed");
1147 return -1;
1148 }
1149 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1150 error_setg(errp, "name too long (max. %d char)",
1151 FW_CFG_MAX_FILE_PATH - 1);
1152 return -1;
1153 }
1154 if (nonempty_str(gen_id)) {
1155 /*
1156 * In this particular case where the content is populated
1157 * internally, the "etc/" namespace protection is relaxed,
1158 * so do not emit a warning.
1159 */
1160 } else if (strncmp(name, "opt/", 4) != 0) {
1161 warn_report("externally provided fw_cfg item names "
1162 "should be prefixed with \"opt/\"");
1163 }
1164 if (nonempty_str(str)) {
1165 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1166 buf = g_memdup(str, size);
1167 } else if (nonempty_str(gen_id)) {
1168 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1169 return -1;
1170 }
1171 return 0;
1172 } else {
1173 GError *err = NULL;
1174 if (!g_file_get_contents(file, &buf, &size, &err)) {
1175 error_setg(errp, "can't load %s: %s", file, err->message);
1176 g_error_free(err);
1177 return -1;
1178 }
1179 }
1180 /* For legacy, keep user files in a specific global order. */
1181 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1182 fw_cfg_add_file(fw_cfg, name, buf, size);
1183 fw_cfg_reset_order_override(fw_cfg);
1184 return 0;
1185 }
1186
1187 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1188 {
1189 return qdev_device_help(opts);
1190 }
1191
1192 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1193 {
1194 DeviceState *dev;
1195
1196 dev = qdev_device_add(opts, errp);
1197 if (!dev && *errp) {
1198 error_report_err(*errp);
1199 return -1;
1200 } else if (dev) {
1201 object_unref(OBJECT(dev));
1202 }
1203 return 0;
1204 }
1205
1206 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1207 {
1208 Error *local_err = NULL;
1209
1210 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1211 if (local_err) {
1212 error_propagate(errp, local_err);
1213 return -1;
1214 }
1215 exit(0);
1216 }
1217 return 0;
1218 }
1219
1220 #ifdef CONFIG_VIRTFS
1221 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1222 {
1223 return qemu_fsdev_add(opts, errp);
1224 }
1225 #endif
1226
1227 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1228 {
1229 return monitor_init_opts(opts, errp);
1230 }
1231
1232 static void monitor_parse(const char *str, const char *mode, bool pretty)
1233 {
1234 static int monitor_device_index = 0;
1235 QemuOpts *opts;
1236 const char *p;
1237 char label[32];
1238
1239 if (strstart(str, "chardev:", &p)) {
1240 snprintf(label, sizeof(label), "%s", p);
1241 } else {
1242 snprintf(label, sizeof(label), "compat_monitor%d",
1243 monitor_device_index);
1244 opts = qemu_chr_parse_compat(label, str, true);
1245 if (!opts) {
1246 error_report("parse error: %s", str);
1247 exit(1);
1248 }
1249 }
1250
1251 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1252 qemu_opt_set(opts, "mode", mode, &error_abort);
1253 qemu_opt_set(opts, "chardev", label, &error_abort);
1254 if (!strcmp(mode, "control")) {
1255 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1256 } else {
1257 assert(pretty == false);
1258 }
1259 monitor_device_index++;
1260 }
1261
1262 struct device_config {
1263 enum {
1264 DEV_USB, /* -usbdevice */
1265 DEV_SERIAL, /* -serial */
1266 DEV_PARALLEL, /* -parallel */
1267 DEV_DEBUGCON, /* -debugcon */
1268 DEV_GDB, /* -gdb, -s */
1269 DEV_SCLP, /* s390 sclp */
1270 } type;
1271 const char *cmdline;
1272 Location loc;
1273 QTAILQ_ENTRY(device_config) next;
1274 };
1275
1276 static QTAILQ_HEAD(, device_config) device_configs =
1277 QTAILQ_HEAD_INITIALIZER(device_configs);
1278
1279 static void add_device_config(int type, const char *cmdline)
1280 {
1281 struct device_config *conf;
1282
1283 conf = g_malloc0(sizeof(*conf));
1284 conf->type = type;
1285 conf->cmdline = cmdline;
1286 loc_save(&conf->loc);
1287 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1288 }
1289
1290 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1291 {
1292 struct device_config *conf;
1293 int rc;
1294
1295 QTAILQ_FOREACH(conf, &device_configs, next) {
1296 if (conf->type != type)
1297 continue;
1298 loc_push_restore(&conf->loc);
1299 rc = func(conf->cmdline);
1300 loc_pop(&conf->loc);
1301 if (rc) {
1302 return rc;
1303 }
1304 }
1305 return 0;
1306 }
1307
1308 static void qemu_disable_default_devices(void)
1309 {
1310 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1311
1312 default_driver_check_json();
1313 qemu_opts_foreach(qemu_find_opts("device"),
1314 default_driver_check, NULL, NULL);
1315 qemu_opts_foreach(qemu_find_opts("global"),
1316 default_driver_check, NULL, NULL);
1317
1318 if (!vga_model && !default_vga) {
1319 vga_interface_type = VGA_DEVICE;
1320 vga_interface_created = true;
1321 }
1322 if (!has_defaults || machine_class->no_serial) {
1323 default_serial = 0;
1324 }
1325 if (!has_defaults || machine_class->no_parallel) {
1326 default_parallel = 0;
1327 }
1328 if (!has_defaults || machine_class->no_floppy) {
1329 default_floppy = 0;
1330 }
1331 if (!has_defaults || machine_class->no_cdrom) {
1332 default_cdrom = 0;
1333 }
1334 if (!has_defaults || machine_class->no_sdcard) {
1335 default_sdcard = 0;
1336 }
1337 if (!has_defaults) {
1338 default_audio = 0;
1339 default_monitor = 0;
1340 default_net = 0;
1341 default_vga = 0;
1342 } else {
1343 if (default_net && machine_class->default_nic &&
1344 !module_object_class_by_name(machine_class->default_nic)) {
1345 warn_report("Default NIC '%s' is not available in this binary",
1346 machine_class->default_nic);
1347 default_net = 0;
1348 }
1349 }
1350 }
1351
1352 static void qemu_create_default_devices(void)
1353 {
1354 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1355
1356 if (is_daemonized()) {
1357 /* According to documentation and historically, -nographic redirects
1358 * serial port, parallel port and monitor to stdio, which does not work
1359 * with -daemonize. We can redirect these to null instead, but since
1360 * -nographic is legacy, let's just error out.
1361 * We disallow -nographic only if all other ports are not redirected
1362 * explicitly, to not break existing legacy setups which uses
1363 * -nographic _and_ redirects all ports explicitly - this is valid
1364 * usage, -nographic is just a no-op in this case.
1365 */
1366 if (nographic
1367 && (default_parallel || default_serial || default_monitor)) {
1368 error_report("-nographic cannot be used with -daemonize");
1369 exit(1);
1370 }
1371 }
1372
1373 if (nographic) {
1374 if (default_parallel)
1375 add_device_config(DEV_PARALLEL, "null");
1376 if (default_serial && default_monitor) {
1377 add_device_config(DEV_SERIAL, "mon:stdio");
1378 } else {
1379 if (default_serial)
1380 add_device_config(DEV_SERIAL, "stdio");
1381 if (default_monitor)
1382 monitor_parse("stdio", "readline", false);
1383 }
1384 } else {
1385 if (default_serial)
1386 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1387 if (default_parallel)
1388 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1389 if (default_monitor)
1390 monitor_parse("vc:80Cx24C", "readline", false);
1391 }
1392
1393 if (default_net) {
1394 QemuOptsList *net = qemu_find_opts("net");
1395 qemu_opts_parse(net, "nic", true, &error_abort);
1396 #ifdef CONFIG_SLIRP
1397 qemu_opts_parse(net, "user", true, &error_abort);
1398 #endif
1399 }
1400
1401 #if defined(CONFIG_VNC)
1402 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
1403 display_remote++;
1404 }
1405 #endif
1406 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1407 if (!qemu_display_find_default(&dpy)) {
1408 dpy.type = DISPLAY_TYPE_NONE;
1409 #if defined(CONFIG_VNC)
1410 vnc_parse("localhost:0,to=99,id=default");
1411 #endif
1412 }
1413 }
1414 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1415 dpy.type = DISPLAY_TYPE_NONE;
1416 }
1417
1418 /* If no default VGA is requested, the default is "none". */
1419 if (default_vga) {
1420 vga_model = get_default_vga_model(machine_class);
1421 }
1422 if (vga_model) {
1423 select_vgahw(machine_class, vga_model);
1424 }
1425 }
1426
1427 static int serial_parse(const char *devname)
1428 {
1429 int index = num_serial_hds;
1430 char label[32];
1431
1432 if (strcmp(devname, "none") == 0)
1433 return 0;
1434 snprintf(label, sizeof(label), "serial%d", index);
1435 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1436
1437 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1438 if (!serial_hds[index]) {
1439 error_report("could not connect serial device"
1440 " to character backend '%s'", devname);
1441 return -1;
1442 }
1443 num_serial_hds++;
1444 return 0;
1445 }
1446
1447 Chardev *serial_hd(int i)
1448 {
1449 assert(i >= 0);
1450 if (i < num_serial_hds) {
1451 return serial_hds[i];
1452 }
1453 return NULL;
1454 }
1455
1456 static int parallel_parse(const char *devname)
1457 {
1458 static int index = 0;
1459 char label[32];
1460
1461 if (strcmp(devname, "none") == 0)
1462 return 0;
1463 if (index == MAX_PARALLEL_PORTS) {
1464 error_report("too many parallel ports");
1465 exit(1);
1466 }
1467 snprintf(label, sizeof(label), "parallel%d", index);
1468 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1469 if (!parallel_hds[index]) {
1470 error_report("could not connect parallel device"
1471 " to character backend '%s'", devname);
1472 return -1;
1473 }
1474 index++;
1475 return 0;
1476 }
1477
1478 static int debugcon_parse(const char *devname)
1479 {
1480 QemuOpts *opts;
1481
1482 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1483 error_report("invalid character backend '%s'", devname);
1484 exit(1);
1485 }
1486 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1487 if (!opts) {
1488 error_report("already have a debugcon device");
1489 exit(1);
1490 }
1491 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1492 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1493 return 0;
1494 }
1495
1496 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1497 {
1498 const MachineClass *mc1 = a, *mc2 = b;
1499 int res;
1500
1501 if (mc1->family == NULL) {
1502 if (mc2->family == NULL) {
1503 /* Compare standalone machine types against each other; they sort
1504 * in increasing order.
1505 */
1506 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1507 object_class_get_name(OBJECT_CLASS(mc2)));
1508 }
1509
1510 /* Standalone machine types sort after families. */
1511 return 1;
1512 }
1513
1514 if (mc2->family == NULL) {
1515 /* Families sort before standalone machine types. */
1516 return -1;
1517 }
1518
1519 /* Families sort between each other alphabetically increasingly. */
1520 res = strcmp(mc1->family, mc2->family);
1521 if (res != 0) {
1522 return res;
1523 }
1524
1525 /* Within the same family, machine types sort in decreasing order. */
1526 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1527 object_class_get_name(OBJECT_CLASS(mc1)));
1528 }
1529
1530 static void machine_help_func(const QDict *qdict)
1531 {
1532 GSList *machines, *el;
1533 const char *type = qdict_get_try_str(qdict, "type");
1534
1535 machines = object_class_get_list(TYPE_MACHINE, false);
1536 if (type) {
1537 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1538 if (machine_class) {
1539 type_print_class_properties(object_class_get_name(machine_class));
1540 return;
1541 }
1542 }
1543
1544 printf("Supported machines are:\n");
1545 machines = g_slist_sort(machines, machine_class_cmp);
1546 for (el = machines; el; el = el->next) {
1547 MachineClass *mc = el->data;
1548 if (mc->alias) {
1549 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1550 }
1551 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1552 mc->is_default ? " (default)" : "",
1553 mc->deprecation_reason ? " (deprecated)" : "");
1554 }
1555 }
1556
1557 static void
1558 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1559 {
1560 QDict *opts;
1561
1562 opts = qdict_new();
1563 /* Preserve the caller's reference to prop. */
1564 qobject_ref(prop);
1565 qdict_put(opts, propname, prop);
1566 keyval_merge(machine_opts_dict, opts, errp);
1567 qobject_unref(opts);
1568 }
1569
1570 static void
1571 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1572 const char *arg)
1573 {
1574 QDict *prop = NULL;
1575 bool help = false;
1576
1577 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1578 if (help) {
1579 qemu_opts_print_help(opts_list, true);
1580 exit(0);
1581 }
1582 machine_merge_property(propname, prop, &error_fatal);
1583 qobject_unref(prop);
1584 }
1585
1586 static const char *pid_file;
1587 struct UnlinkPidfileNotifier {
1588 Notifier notifier;
1589 char *pid_file_realpath;
1590 };
1591 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1592
1593 static void qemu_unlink_pidfile(Notifier *n, void *data)
1594 {
1595 struct UnlinkPidfileNotifier *upn;
1596
1597 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1598 unlink(upn->pid_file_realpath);
1599 }
1600
1601 static const QEMUOption *lookup_opt(int argc, char **argv,
1602 const char **poptarg, int *poptind)
1603 {
1604 const QEMUOption *popt;
1605 int optind = *poptind;
1606 char *r = argv[optind];
1607 const char *optarg;
1608
1609 loc_set_cmdline(argv, optind, 1);
1610 optind++;
1611 /* Treat --foo the same as -foo. */
1612 if (r[1] == '-')
1613 r++;
1614 popt = qemu_options;
1615 for(;;) {
1616 if (!popt->name) {
1617 error_report("invalid option");
1618 exit(1);
1619 }
1620 if (!strcmp(popt->name, r + 1))
1621 break;
1622 popt++;
1623 }
1624 if (popt->flags & HAS_ARG) {
1625 if (optind >= argc) {
1626 error_report("requires an argument");
1627 exit(1);
1628 }
1629 optarg = argv[optind++];
1630 loc_set_cmdline(argv, optind - 2, 2);
1631 } else {
1632 optarg = NULL;
1633 }
1634
1635 *poptarg = optarg;
1636 *poptind = optind;
1637
1638 return popt;
1639 }
1640
1641 static MachineClass *select_machine(QDict *qdict, Error **errp)
1642 {
1643 const char *machine_type = qdict_get_try_str(qdict, "type");
1644 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1645 MachineClass *machine_class;
1646 Error *local_err = NULL;
1647
1648 if (machine_type) {
1649 machine_class = find_machine(machine_type, machines);
1650 qdict_del(qdict, "type");
1651 if (!machine_class) {
1652 error_setg(&local_err, "unsupported machine type");
1653 }
1654 } else {
1655 machine_class = find_default_machine(machines);
1656 if (!machine_class) {
1657 error_setg(&local_err, "No machine specified, and there is no default");
1658 }
1659 }
1660
1661 g_slist_free(machines);
1662 if (local_err) {
1663 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1664 error_propagate(errp, local_err);
1665 }
1666 return machine_class;
1667 }
1668
1669 static int object_parse_property_opt(Object *obj,
1670 const char *name, const char *value,
1671 const char *skip, Error **errp)
1672 {
1673 if (g_str_equal(name, skip)) {
1674 return 0;
1675 }
1676
1677 if (!object_property_parse(obj, name, value, errp)) {
1678 return -1;
1679 }
1680
1681 return 0;
1682 }
1683
1684 /* *Non*recursively replace underscores with dashes in QDict keys. */
1685 static void keyval_dashify(QDict *qdict, Error **errp)
1686 {
1687 const QDictEntry *ent, *next;
1688 char *p;
1689
1690 for (ent = qdict_first(qdict); ent; ent = next) {
1691 g_autofree char *new_key = NULL;
1692
1693 next = qdict_next(qdict, ent);
1694 if (!strchr(ent->key, '_')) {
1695 continue;
1696 }
1697 new_key = g_strdup(ent->key);
1698 for (p = new_key; *p; p++) {
1699 if (*p == '_') {
1700 *p = '-';
1701 }
1702 }
1703 if (qdict_haskey(qdict, new_key)) {
1704 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1705 return;
1706 }
1707 qobject_ref(ent->value);
1708 qdict_put_obj(qdict, new_key, ent->value);
1709 qdict_del(qdict, ent->key);
1710 }
1711 }
1712
1713 static void qemu_apply_legacy_machine_options(QDict *qdict)
1714 {
1715 const char *value;
1716 QObject *prop;
1717
1718 keyval_dashify(qdict, &error_fatal);
1719
1720 /* Legacy options do not correspond to MachineState properties. */
1721 value = qdict_get_try_str(qdict, "accel");
1722 if (value) {
1723 accelerators = g_strdup(value);
1724 qdict_del(qdict, "accel");
1725 }
1726
1727 value = qdict_get_try_str(qdict, "igd-passthru");
1728 if (value) {
1729 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1730 false);
1731 qdict_del(qdict, "igd-passthru");
1732 }
1733
1734 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1735 if (value) {
1736 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1737 false);
1738 qdict_del(qdict, "kvm-shadow-mem");
1739 }
1740
1741 value = qdict_get_try_str(qdict, "kernel-irqchip");
1742 if (value) {
1743 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1744 false);
1745 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1746 false);
1747 qdict_del(qdict, "kernel-irqchip");
1748 }
1749
1750 value = qdict_get_try_str(qdict, "memory-backend");
1751 if (value) {
1752 if (mem_path) {
1753 error_report("'-mem-path' can't be used together with"
1754 "'-machine memory-backend'");
1755 exit(EXIT_FAILURE);
1756 }
1757
1758 /* Resolved later. */
1759 ram_memdev_id = g_strdup(value);
1760 qdict_del(qdict, "memory-backend");
1761 }
1762
1763 prop = qdict_get(qdict, "memory");
1764 if (prop) {
1765 have_custom_ram_size =
1766 qobject_type(prop) == QTYPE_QDICT &&
1767 qdict_haskey(qobject_to(QDict, prop), "size");
1768 }
1769 }
1770
1771 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1772 {
1773 ObjectOption *opt, *next;
1774
1775 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1776 const char *type = ObjectType_str(opt->opts->qom_type);
1777 if (type_opt_predicate(type)) {
1778 user_creatable_add_qapi(opt->opts, &error_fatal);
1779 qapi_free_ObjectOptions(opt->opts);
1780 QTAILQ_REMOVE(&object_opts, opt, next);
1781 g_free(opt);
1782 }
1783 }
1784 }
1785
1786 static void object_option_add_visitor(Visitor *v)
1787 {
1788 ObjectOption *opt = g_new0(ObjectOption, 1);
1789 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1790 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1791 }
1792
1793 static void object_option_parse(const char *str)
1794 {
1795 QemuOpts *opts;
1796 const char *type;
1797 Visitor *v;
1798
1799 if (str[0] == '{') {
1800 QObject *obj = qobject_from_json(str, &error_fatal);
1801
1802 v = qobject_input_visitor_new(obj);
1803 qobject_unref(obj);
1804 } else {
1805 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1806 str, true);
1807 if (!opts) {
1808 exit(1);
1809 }
1810
1811 type = qemu_opt_get(opts, "qom-type");
1812 if (!type) {
1813 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1814 }
1815 if (user_creatable_print_help(type, opts)) {
1816 exit(0);
1817 }
1818
1819 v = opts_visitor_new(opts);
1820 }
1821
1822 object_option_add_visitor(v);
1823 visit_free(v);
1824 }
1825
1826 /*
1827 * Very early object creation, before the sandbox options have been activated.
1828 */
1829 static bool object_create_pre_sandbox(const char *type)
1830 {
1831 /*
1832 * Objects should in general not get initialized "too early" without
1833 * a reason. If you add one, state the reason in a comment!
1834 */
1835
1836 /*
1837 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1838 * affinity of threads.
1839 */
1840 if (g_str_equal(type, "thread-context")) {
1841 return true;
1842 }
1843
1844 return false;
1845 }
1846
1847 /*
1848 * Initial object creation happens before all other
1849 * QEMU data types are created. The majority of objects
1850 * can be created at this point. The rng-egd object
1851 * cannot be created here, as it depends on the chardev
1852 * already existing.
1853 */
1854 static bool object_create_early(const char *type)
1855 {
1856 /*
1857 * Objects should not be made "delayed" without a reason. If you
1858 * add one, state the reason in a comment!
1859 */
1860
1861 /* Reason: already created. */
1862 if (object_create_pre_sandbox(type)) {
1863 return false;
1864 }
1865
1866 /* Reason: property "chardev" */
1867 if (g_str_equal(type, "rng-egd") ||
1868 g_str_equal(type, "qtest")) {
1869 return false;
1870 }
1871
1872 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1873 /* Reason: cryptodev-vhost-user property "chardev" */
1874 if (g_str_equal(type, "cryptodev-vhost-user")) {
1875 return false;
1876 }
1877 #endif
1878
1879 /* Reason: vhost-user-blk-server property "node-name" */
1880 if (g_str_equal(type, "vhost-user-blk-server")) {
1881 return false;
1882 }
1883 /*
1884 * Reason: filter-* property "netdev" etc.
1885 */
1886 if (g_str_equal(type, "filter-buffer") ||
1887 g_str_equal(type, "filter-dump") ||
1888 g_str_equal(type, "filter-mirror") ||
1889 g_str_equal(type, "filter-redirector") ||
1890 g_str_equal(type, "colo-compare") ||
1891 g_str_equal(type, "filter-rewriter") ||
1892 g_str_equal(type, "filter-replay")) {
1893 return false;
1894 }
1895
1896 /*
1897 * Allocation of large amounts of memory may delay
1898 * chardev initialization for too long, and trigger timeouts
1899 * on software that waits for a monitor socket to be created
1900 * (e.g. libvirt).
1901 */
1902 if (g_str_has_prefix(type, "memory-backend-")) {
1903 return false;
1904 }
1905
1906 return true;
1907 }
1908
1909 static void qemu_apply_machine_options(QDict *qdict)
1910 {
1911 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1912
1913 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1914 /* fall back to the -kernel/-append */
1915 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1916 }
1917
1918 if (current_machine->smp.cpus > 1) {
1919 replay_add_blocker("smp");
1920 }
1921 }
1922
1923 static void qemu_create_early_backends(void)
1924 {
1925 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1926 #if defined(CONFIG_SDL)
1927 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1928 #else
1929 const bool use_sdl = false;
1930 #endif
1931 #if defined(CONFIG_GTK)
1932 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1933 #else
1934 const bool use_gtk = false;
1935 #endif
1936
1937 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1938 error_report("window-close is only valid for GTK and SDL, "
1939 "ignoring option");
1940 }
1941
1942 qemu_display_early_init(&dpy);
1943 qemu_console_early_init();
1944
1945 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1946 #if defined(CONFIG_OPENGL)
1947 error_report("OpenGL is not supported by the display");
1948 #else
1949 error_report("OpenGL support is disabled");
1950 #endif
1951 exit(1);
1952 }
1953
1954 object_option_foreach_add(object_create_early);
1955
1956 /* spice needs the timers to be initialized by this point */
1957 /* spice must initialize before audio as it changes the default audiodev */
1958 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1959 qemu_spice.init();
1960
1961 qemu_opts_foreach(qemu_find_opts("chardev"),
1962 chardev_init_func, NULL, &error_fatal);
1963
1964 #ifdef CONFIG_VIRTFS
1965 qemu_opts_foreach(qemu_find_opts("fsdev"),
1966 fsdev_init_func, NULL, &error_fatal);
1967 #endif
1968
1969 /*
1970 * Note: we need to create audio and block backends before
1971 * setting machine properties, so they can be referred to.
1972 */
1973 configure_blockdev(&bdo_queue, machine_class, snapshot);
1974 audio_init_audiodevs();
1975 if (default_audio) {
1976 audio_create_default_audiodevs();
1977 }
1978 }
1979
1980
1981 /*
1982 * The remainder of object creation happens after the
1983 * creation of chardev, fsdev, net clients and device data types.
1984 */
1985 static bool object_create_late(const char *type)
1986 {
1987 return !object_create_early(type) && !object_create_pre_sandbox(type);
1988 }
1989
1990 static void qemu_create_late_backends(void)
1991 {
1992 if (qtest_chrdev) {
1993 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
1994 }
1995
1996 net_init_clients();
1997
1998 object_option_foreach_add(object_create_late);
1999
2000 if (tpm_init() < 0) {
2001 exit(1);
2002 }
2003
2004 qemu_opts_foreach(qemu_find_opts("mon"),
2005 mon_init_func, NULL, &error_fatal);
2006
2007 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2008 exit(1);
2009 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2010 exit(1);
2011 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2012 exit(1);
2013
2014 /* now chardevs have been created we may have semihosting to connect */
2015 qemu_semihosting_chardev_init();
2016 }
2017
2018 static void qemu_resolve_machine_memdev(void)
2019 {
2020 if (ram_memdev_id) {
2021 Object *backend;
2022 ram_addr_t backend_size;
2023
2024 backend = object_resolve_path_type(ram_memdev_id,
2025 TYPE_MEMORY_BACKEND, NULL);
2026 if (!backend) {
2027 error_report("Memory backend '%s' not found", ram_memdev_id);
2028 exit(EXIT_FAILURE);
2029 }
2030 if (!have_custom_ram_size) {
2031 backend_size = object_property_get_uint(backend, "size", &error_abort);
2032 current_machine->ram_size = backend_size;
2033 }
2034 object_property_set_link(OBJECT(current_machine),
2035 "memory-backend", backend, &error_fatal);
2036 }
2037 }
2038
2039 static void parse_memory_options(void)
2040 {
2041 QemuOpts *opts = qemu_find_opts_singleton("memory");
2042 QDict *dict, *prop;
2043 const char *mem_str;
2044 Location loc;
2045
2046 loc_push_none(&loc);
2047 qemu_opts_loc_restore(opts);
2048
2049 prop = qdict_new();
2050
2051 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2052 /* Fix up legacy suffix-less format */
2053 mem_str = qemu_opt_get(opts, "size");
2054 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2055 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2056 qdict_put_str(prop, "size", mib_str);
2057 } else {
2058 qdict_put_str(prop, "size", mem_str);
2059 }
2060 }
2061
2062 if (qemu_opt_get(opts, "maxmem")) {
2063 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2064 }
2065 if (qemu_opt_get(opts, "slots")) {
2066 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2067 }
2068
2069 dict = qdict_new();
2070 qdict_put(dict, "memory", prop);
2071 keyval_merge(machine_opts_dict, dict, &error_fatal);
2072 qobject_unref(dict);
2073 loc_pop(&loc);
2074 }
2075
2076 static void qemu_create_machine(QDict *qdict)
2077 {
2078 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2079 object_set_machine_compat_props(machine_class->compat_props);
2080
2081 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2082 object_property_add_child(object_get_root(), "machine",
2083 OBJECT(current_machine));
2084 object_property_add_child(container_get(OBJECT(current_machine),
2085 "/unattached"),
2086 "sysbus", OBJECT(sysbus_get_default()));
2087
2088 if (machine_class->minimum_page_bits) {
2089 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2090 /* This would be a board error: specifying a minimum smaller than
2091 * a target's compile-time fixed setting.
2092 */
2093 g_assert_not_reached();
2094 }
2095 }
2096
2097 cpu_exec_init_all();
2098 page_size_init();
2099
2100 if (machine_class->hw_version) {
2101 qemu_set_hw_version(machine_class->hw_version);
2102 }
2103
2104 /*
2105 * Get the default machine options from the machine if it is not already
2106 * specified either by the configuration file or by the command line.
2107 */
2108 if (machine_class->default_machine_opts) {
2109 QDict *default_opts =
2110 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2111 &error_abort);
2112 qemu_apply_legacy_machine_options(default_opts);
2113 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2114 false, &error_abort);
2115 qobject_unref(default_opts);
2116 }
2117 }
2118
2119 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2120 {
2121 GlobalProperty *g;
2122
2123 g = g_malloc0(sizeof(*g));
2124 g->driver = qemu_opt_get(opts, "driver");
2125 g->property = qemu_opt_get(opts, "property");
2126 g->value = qemu_opt_get(opts, "value");
2127 qdev_prop_register_global(g);
2128 return 0;
2129 }
2130
2131 /*
2132 * Return whether configuration group @group is stored in QemuOpts, or
2133 * recorded as one or more QDicts by qemu_record_config_group.
2134 */
2135 static bool is_qemuopts_group(const char *group)
2136 {
2137 if (g_str_equal(group, "object") ||
2138 g_str_equal(group, "audiodev") ||
2139 g_str_equal(group, "machine") ||
2140 g_str_equal(group, "smp-opts") ||
2141 g_str_equal(group, "boot-opts")) {
2142 return false;
2143 }
2144 return true;
2145 }
2146
2147 static void qemu_record_config_group(const char *group, QDict *dict,
2148 bool from_json, Error **errp)
2149 {
2150 if (g_str_equal(group, "object")) {
2151 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2152 object_option_add_visitor(v);
2153 visit_free(v);
2154
2155 } else if (g_str_equal(group, "audiodev")) {
2156 Audiodev *dev = NULL;
2157 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2158 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2159 audio_define(dev);
2160 }
2161 visit_free(v);
2162
2163 } else if (g_str_equal(group, "machine")) {
2164 /*
2165 * Cannot merge string-valued and type-safe dictionaries, so JSON
2166 * is not accepted yet for -M.
2167 */
2168 assert(!from_json);
2169 keyval_merge(machine_opts_dict, dict, errp);
2170 } else if (g_str_equal(group, "smp-opts")) {
2171 machine_merge_property("smp", dict, &error_fatal);
2172 } else if (g_str_equal(group, "boot-opts")) {
2173 machine_merge_property("boot", dict, &error_fatal);
2174 } else {
2175 abort();
2176 }
2177 }
2178
2179 /*
2180 * Parse non-QemuOpts config file groups, pass the rest to
2181 * qemu_config_do_parse.
2182 */
2183 static void qemu_parse_config_group(const char *group, QDict *qdict,
2184 void *opaque, Error **errp)
2185 {
2186 QObject *crumpled;
2187 if (is_qemuopts_group(group)) {
2188 qemu_config_do_parse(group, qdict, opaque, errp);
2189 return;
2190 }
2191
2192 crumpled = qdict_crumple(qdict, errp);
2193 if (!crumpled) {
2194 return;
2195 }
2196 switch (qobject_type(crumpled)) {
2197 case QTYPE_QDICT:
2198 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2199 break;
2200 case QTYPE_QLIST:
2201 error_setg(errp, "Lists cannot be at top level of a configuration section");
2202 break;
2203 default:
2204 g_assert_not_reached();
2205 }
2206 qobject_unref(crumpled);
2207 }
2208
2209 static void qemu_read_default_config_file(Error **errp)
2210 {
2211 ERRP_GUARD();
2212 int ret;
2213 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2214
2215 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2216 if (ret < 0) {
2217 if (ret == -ENOENT) {
2218 error_free(*errp);
2219 *errp = NULL;
2220 }
2221 }
2222 }
2223
2224 static void qemu_set_option(const char *str, Error **errp)
2225 {
2226 char group[64], id[64], arg[64];
2227 QemuOptsList *list;
2228 QemuOpts *opts;
2229 int rc, offset;
2230
2231 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2232 if (rc < 3 || str[offset] != '=') {
2233 error_setg(errp, "can't parse: \"%s\"", str);
2234 return;
2235 }
2236
2237 if (!is_qemuopts_group(group)) {
2238 error_setg(errp, "-set is not supported with %s", group);
2239 } else {
2240 list = qemu_find_opts_err(group, errp);
2241 if (list) {
2242 opts = qemu_opts_find(list, id);
2243 if (!opts) {
2244 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2245 return;
2246 }
2247 qemu_opt_set(opts, arg, str + offset + 1, errp);
2248 }
2249 }
2250 }
2251
2252 static void user_register_global_props(void)
2253 {
2254 qemu_opts_foreach(qemu_find_opts("global"),
2255 global_init_func, NULL, NULL);
2256 }
2257
2258 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2259 {
2260 icount_configure(opts, errp);
2261 return 0;
2262 }
2263
2264 static int accelerator_set_property(void *opaque,
2265 const char *name, const char *value,
2266 Error **errp)
2267 {
2268 return object_parse_property_opt(opaque, name, value, "accel", errp);
2269 }
2270
2271 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2272 {
2273 bool *p_init_failed = opaque;
2274 const char *acc = qemu_opt_get(opts, "accel");
2275 AccelClass *ac = accel_find(acc);
2276 AccelState *accel;
2277 int ret;
2278 bool qtest_with_kvm;
2279
2280 if (!acc) {
2281 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2282 goto bad;
2283 }
2284
2285 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2286
2287 if (!ac) {
2288 if (!qtest_with_kvm) {
2289 error_report("invalid accelerator %s", acc);
2290 }
2291 goto bad;
2292 }
2293 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2294 object_apply_compat_props(OBJECT(accel));
2295 qemu_opt_foreach(opts, accelerator_set_property,
2296 accel,
2297 &error_fatal);
2298 /*
2299 * If legacy -singlestep option is set, honour it for TCG and
2300 * silently ignore for any other accelerator (which is how this
2301 * option has always behaved).
2302 */
2303 if (opt_one_insn_per_tb) {
2304 /*
2305 * This will always succeed for TCG, and we want to ignore
2306 * the error from trying to set a nonexistent property
2307 * on any other accelerator.
2308 */
2309 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL);
2310 }
2311 ret = accel_init_machine(accel, current_machine);
2312 if (ret < 0) {
2313 if (!qtest_with_kvm || ret != -ENOENT) {
2314 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2315 }
2316 goto bad;
2317 }
2318
2319 return 1;
2320
2321 bad:
2322 *p_init_failed = true;
2323 return 0;
2324 }
2325
2326 static void configure_accelerators(const char *progname)
2327 {
2328 bool init_failed = false;
2329
2330 qemu_opts_foreach(qemu_find_opts("icount"),
2331 do_configure_icount, NULL, &error_fatal);
2332
2333 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2334 char **accel_list, **tmp;
2335
2336 if (accelerators == NULL) {
2337 /* Select the default accelerator */
2338 bool have_tcg = accel_find("tcg");
2339 bool have_kvm = accel_find("kvm");
2340
2341 if (have_tcg && have_kvm) {
2342 if (g_str_has_suffix(progname, "kvm")) {
2343 /* If the program name ends with "kvm", we prefer KVM */
2344 accelerators = "kvm:tcg";
2345 } else {
2346 accelerators = "tcg:kvm";
2347 }
2348 } else if (have_kvm) {
2349 accelerators = "kvm";
2350 } else if (have_tcg) {
2351 accelerators = "tcg";
2352 } else {
2353 error_report("No accelerator selected and"
2354 " no default accelerator available");
2355 exit(1);
2356 }
2357 }
2358 accel_list = g_strsplit(accelerators, ":", 0);
2359
2360 for (tmp = accel_list; *tmp; tmp++) {
2361 /*
2362 * Filter invalid accelerators here, to prevent obscenities
2363 * such as "-machine accel=tcg,,thread=single".
2364 */
2365 if (accel_find(*tmp)) {
2366 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2367 } else {
2368 init_failed = true;
2369 error_report("invalid accelerator %s", *tmp);
2370 }
2371 }
2372 g_strfreev(accel_list);
2373 } else {
2374 if (accelerators != NULL) {
2375 error_report("The -accel and \"-machine accel=\" options are incompatible");
2376 exit(1);
2377 }
2378 }
2379
2380 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2381 do_configure_accelerator, &init_failed, &error_fatal)) {
2382 if (!init_failed) {
2383 error_report("no accelerator found");
2384 }
2385 exit(1);
2386 }
2387
2388 if (init_failed && !qtest_chrdev) {
2389 error_report("falling back to %s", current_accel_name());
2390 }
2391
2392 if (icount_enabled() && !tcg_enabled()) {
2393 error_report("-icount is not allowed with hardware virtualization");
2394 exit(1);
2395 }
2396 }
2397
2398 static void qemu_validate_options(const QDict *machine_opts)
2399 {
2400 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2401 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2402 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2403
2404 if (kernel_filename == NULL) {
2405 if (kernel_cmdline != NULL) {
2406 error_report("-append only allowed with -kernel option");
2407 exit(1);
2408 }
2409
2410 if (initrd_filename != NULL) {
2411 error_report("-initrd only allowed with -kernel option");
2412 exit(1);
2413 }
2414 }
2415
2416 if (loadvm && preconfig_requested) {
2417 error_report("'preconfig' and 'loadvm' options are "
2418 "mutually exclusive");
2419 exit(EXIT_FAILURE);
2420 }
2421 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2422 error_report("'preconfig' supports '-incoming defer' only");
2423 exit(EXIT_FAILURE);
2424 }
2425
2426 #ifdef CONFIG_CURSES
2427 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2428 error_report("curses display cannot be used with -daemonize");
2429 exit(1);
2430 }
2431 #endif
2432 }
2433
2434 static void qemu_process_sugar_options(void)
2435 {
2436 if (mem_prealloc) {
2437 QObject *smp = qdict_get(machine_opts_dict, "smp");
2438 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2439 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2440 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2441 const char *val = qstring_get_str(qobject_to(QString, cpus));
2442 object_register_sugar_prop("memory-backend", "prealloc-threads",
2443 val, false);
2444 }
2445 }
2446 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2447 }
2448 }
2449
2450 /* -action processing */
2451
2452 /*
2453 * Process all the -action parameters parsed from cmdline.
2454 */
2455 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2456 {
2457 Error *local_err = NULL;
2458 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2459 QObject *ret = NULL;
2460 qmp_marshal_set_action(qdict, &ret, &local_err);
2461 qobject_unref(ret);
2462 qobject_unref(qdict);
2463 if (local_err) {
2464 error_propagate(errp, local_err);
2465 return 1;
2466 }
2467 return 0;
2468 }
2469
2470 static void qemu_process_early_options(void)
2471 {
2472 qemu_opts_foreach(qemu_find_opts("name"),
2473 parse_name, NULL, &error_fatal);
2474
2475 object_option_foreach_add(object_create_pre_sandbox);
2476
2477 #ifdef CONFIG_SECCOMP
2478 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2479 if (olist) {
2480 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2481 }
2482 #endif
2483
2484 if (qemu_opts_foreach(qemu_find_opts("action"),
2485 process_runstate_actions, NULL, &error_fatal)) {
2486 exit(1);
2487 }
2488
2489 #ifndef _WIN32
2490 qemu_opts_foreach(qemu_find_opts("add-fd"),
2491 parse_add_fd, NULL, &error_fatal);
2492
2493 qemu_opts_foreach(qemu_find_opts("add-fd"),
2494 cleanup_add_fd, NULL, &error_fatal);
2495 #endif
2496
2497 /* Open the logfile at this point and set the log mask if necessary. */
2498 {
2499 int mask = 0;
2500 if (log_mask) {
2501 mask = qemu_str_to_log_mask(log_mask);
2502 if (!mask) {
2503 qemu_print_log_usage(stdout);
2504 exit(1);
2505 }
2506 }
2507 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2508 }
2509
2510 qemu_add_default_firmwarepath();
2511 }
2512
2513 static void qemu_process_help_options(void)
2514 {
2515 /*
2516 * Check for -cpu help and -device help before we call select_machine(),
2517 * which will return an error if the architecture has no default machine
2518 * type and the user did not specify one, so that the user doesn't need
2519 * to say '-cpu help -machine something'.
2520 */
2521 if (cpu_option && is_help_option(cpu_option)) {
2522 list_cpus();
2523 exit(0);
2524 }
2525
2526 if (qemu_opts_foreach(qemu_find_opts("device"),
2527 device_help_func, NULL, NULL)) {
2528 exit(0);
2529 }
2530
2531 /* -L help lists the data directories and exits. */
2532 if (list_data_dirs) {
2533 qemu_list_data_dirs();
2534 exit(0);
2535 }
2536 }
2537
2538 static void qemu_maybe_daemonize(const char *pid_file)
2539 {
2540 Error *err = NULL;
2541
2542 os_daemonize();
2543 rcu_disable_atfork();
2544
2545 if (pid_file) {
2546 char *pid_file_realpath = NULL;
2547
2548 if (!qemu_write_pidfile(pid_file, &err)) {
2549 error_reportf_err(err, "cannot create PID file: ");
2550 exit(1);
2551 }
2552
2553 pid_file_realpath = g_malloc0(PATH_MAX);
2554 if (!realpath(pid_file, pid_file_realpath)) {
2555 if (errno != ENOENT) {
2556 warn_report("not removing PID file on exit: cannot resolve PID "
2557 "file path: %s: %s", pid_file, strerror(errno));
2558 }
2559 return;
2560 }
2561
2562 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2563 .notifier = {
2564 .notify = qemu_unlink_pidfile,
2565 },
2566 .pid_file_realpath = pid_file_realpath,
2567 };
2568 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2569 }
2570 }
2571
2572 static void qemu_init_displays(void)
2573 {
2574 DisplayState *ds;
2575
2576 /* init local displays */
2577 ds = init_displaystate();
2578 qemu_display_init(ds, &dpy);
2579
2580 /* must be after terminal init, SDL library changes signal handlers */
2581 os_setup_signal_handling();
2582
2583 /* init remote displays */
2584 #ifdef CONFIG_VNC
2585 qemu_opts_foreach(qemu_find_opts("vnc"),
2586 vnc_init_func, NULL, &error_fatal);
2587 #endif
2588
2589 if (using_spice) {
2590 qemu_spice.display_init();
2591 }
2592 }
2593
2594 static void qemu_init_board(void)
2595 {
2596 /* process plugin before CPUs are created, but once -smp has been parsed */
2597 qemu_plugin_load_list(&plugin_list, &error_fatal);
2598
2599 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2600 machine_run_board_init(current_machine, mem_path, &error_fatal);
2601
2602 drive_check_orphaned();
2603
2604 realtime_init();
2605 }
2606
2607 static void qemu_create_cli_devices(void)
2608 {
2609 DeviceOption *opt;
2610
2611 soundhw_init();
2612
2613 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2614 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2615
2616 /* init USB devices */
2617 if (machine_usb(current_machine)) {
2618 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2619 exit(1);
2620 }
2621
2622 /* init generic devices */
2623 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2624 qemu_opts_foreach(qemu_find_opts("device"),
2625 device_init_func, NULL, &error_fatal);
2626 QTAILQ_FOREACH(opt, &device_opts, next) {
2627 DeviceState *dev;
2628 loc_push_restore(&opt->loc);
2629 /*
2630 * TODO Eventually we should call qmp_device_add() here to make sure it
2631 * behaves the same, but QMP still has to accept incorrectly typed
2632 * options until libvirt is fixed and we want to be strict on the CLI
2633 * from the start, so call qdev_device_add_from_qdict() directly for
2634 * now.
2635 */
2636 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2637 object_unref(OBJECT(dev));
2638 loc_pop(&opt->loc);
2639 }
2640 rom_reset_order_override();
2641 }
2642
2643 static void qemu_machine_creation_done(void)
2644 {
2645 MachineState *machine = MACHINE(qdev_get_machine());
2646
2647 /* Did we create any drives that we failed to create a device for? */
2648 drive_check_orphaned();
2649
2650 /* Don't warn about the default network setup that you get if
2651 * no command line -net or -netdev options are specified. There
2652 * are two cases that we would otherwise complain about:
2653 * (1) board doesn't support a NIC but the implicit "-net nic"
2654 * requested one
2655 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2656 * sets up a nic that isn't connected to anything.
2657 */
2658 if (!default_net && (!qtest_enabled() || has_defaults)) {
2659 net_check_clients();
2660 }
2661
2662 qdev_prop_check_globals();
2663
2664 qdev_machine_creation_done();
2665
2666 if (machine->cgs) {
2667 /*
2668 * Verify that Confidential Guest Support has actually been initialized
2669 */
2670 assert(machine->cgs->ready);
2671 }
2672
2673 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2674 exit(1);
2675 }
2676 if (!vga_interface_created && !default_vga &&
2677 vga_interface_type != VGA_NONE) {
2678 warn_report("A -vga option was passed but this machine "
2679 "type does not use that option; "
2680 "No VGA device has been created");
2681 }
2682 }
2683
2684 void qmp_x_exit_preconfig(Error **errp)
2685 {
2686 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2687 error_setg(errp, "The command is permitted only before machine initialization");
2688 return;
2689 }
2690
2691 qemu_init_board();
2692 qemu_create_cli_devices();
2693 qemu_machine_creation_done();
2694
2695 if (loadvm) {
2696 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2697 }
2698 if (replay_mode != REPLAY_MODE_NONE) {
2699 replay_vmstate_init();
2700 }
2701
2702 if (incoming) {
2703 Error *local_err = NULL;
2704 if (strcmp(incoming, "defer") != 0) {
2705 qmp_migrate_incoming(incoming, &local_err);
2706 if (local_err) {
2707 error_reportf_err(local_err, "-incoming %s: ", incoming);
2708 exit(1);
2709 }
2710 }
2711 } else if (autostart) {
2712 qmp_cont(NULL);
2713 }
2714 }
2715
2716 void qemu_init(int argc, char **argv)
2717 {
2718 QemuOpts *opts;
2719 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2720 QemuOptsList *olist;
2721 int optind;
2722 const char *optarg;
2723 MachineClass *machine_class;
2724 bool userconfig = true;
2725 FILE *vmstate_dump_file = NULL;
2726
2727 qemu_add_opts(&qemu_drive_opts);
2728 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2729 qemu_add_drive_opts(&qemu_common_drive_opts);
2730 qemu_add_drive_opts(&qemu_drive_opts);
2731 qemu_add_drive_opts(&bdrv_runtime_opts);
2732 qemu_add_opts(&qemu_chardev_opts);
2733 qemu_add_opts(&qemu_device_opts);
2734 qemu_add_opts(&qemu_netdev_opts);
2735 qemu_add_opts(&qemu_nic_opts);
2736 qemu_add_opts(&qemu_net_opts);
2737 qemu_add_opts(&qemu_rtc_opts);
2738 qemu_add_opts(&qemu_global_opts);
2739 qemu_add_opts(&qemu_mon_opts);
2740 qemu_add_opts(&qemu_trace_opts);
2741 qemu_plugin_add_opts();
2742 qemu_add_opts(&qemu_option_rom_opts);
2743 qemu_add_opts(&qemu_accel_opts);
2744 qemu_add_opts(&qemu_mem_opts);
2745 qemu_add_opts(&qemu_smp_opts);
2746 qemu_add_opts(&qemu_boot_opts);
2747 qemu_add_opts(&qemu_add_fd_opts);
2748 qemu_add_opts(&qemu_object_opts);
2749 qemu_add_opts(&qemu_tpmdev_opts);
2750 qemu_add_opts(&qemu_overcommit_opts);
2751 qemu_add_opts(&qemu_msg_opts);
2752 qemu_add_opts(&qemu_name_opts);
2753 qemu_add_opts(&qemu_numa_opts);
2754 qemu_add_opts(&qemu_icount_opts);
2755 qemu_add_opts(&qemu_semihosting_config_opts);
2756 qemu_add_opts(&qemu_fw_cfg_opts);
2757 qemu_add_opts(&qemu_action_opts);
2758 qemu_add_run_with_opts();
2759 module_call_init(MODULE_INIT_OPTS);
2760
2761 error_init(argv[0]);
2762 qemu_init_exec_dir(argv[0]);
2763
2764 qemu_init_arch_modules();
2765
2766 qemu_init_subsystems();
2767
2768 /* first pass of option parsing */
2769 optind = 1;
2770 while (optind < argc) {
2771 if (argv[optind][0] != '-') {
2772 /* disk image */
2773 optind++;
2774 } else {
2775 const QEMUOption *popt;
2776
2777 popt = lookup_opt(argc, argv, &optarg, &optind);
2778 switch (popt->index) {
2779 case QEMU_OPTION_nouserconfig:
2780 userconfig = false;
2781 break;
2782 }
2783 }
2784 }
2785
2786 machine_opts_dict = qdict_new();
2787 if (userconfig) {
2788 qemu_read_default_config_file(&error_fatal);
2789 }
2790
2791 /* second pass of option parsing */
2792 optind = 1;
2793 for(;;) {
2794 if (optind >= argc)
2795 break;
2796 if (argv[optind][0] != '-') {
2797 loc_set_cmdline(argv, optind, 1);
2798 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2799 } else {
2800 const QEMUOption *popt;
2801
2802 popt = lookup_opt(argc, argv, &optarg, &optind);
2803 if (!(popt->arch_mask & arch_type)) {
2804 error_report("Option not supported for this target");
2805 exit(1);
2806 }
2807 switch(popt->index) {
2808 case QEMU_OPTION_cpu:
2809 /* hw initialization will check this */
2810 cpu_option = optarg;
2811 break;
2812 case QEMU_OPTION_hda:
2813 case QEMU_OPTION_hdb:
2814 case QEMU_OPTION_hdc:
2815 case QEMU_OPTION_hdd:
2816 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2817 HD_OPTS);
2818 break;
2819 case QEMU_OPTION_blockdev:
2820 {
2821 Visitor *v;
2822 BlockdevOptionsQueueEntry *bdo;
2823
2824 v = qobject_input_visitor_new_str(optarg, "driver",
2825 &error_fatal);
2826
2827 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2828 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2829 &error_fatal);
2830 visit_free(v);
2831 loc_save(&bdo->loc);
2832 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2833 break;
2834 }
2835 case QEMU_OPTION_drive:
2836 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2837 optarg, false);
2838 if (opts == NULL) {
2839 exit(1);
2840 }
2841 break;
2842 case QEMU_OPTION_set:
2843 qemu_set_option(optarg, &error_fatal);
2844 break;
2845 case QEMU_OPTION_global:
2846 if (qemu_global_option(optarg) != 0)
2847 exit(1);
2848 break;
2849 case QEMU_OPTION_mtdblock:
2850 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2851 break;
2852 case QEMU_OPTION_sd:
2853 drive_add(IF_SD, -1, optarg, SD_OPTS);
2854 break;
2855 case QEMU_OPTION_pflash:
2856 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2857 break;
2858 case QEMU_OPTION_snapshot:
2859 snapshot = 1;
2860 replay_add_blocker("-snapshot");
2861 break;
2862 case QEMU_OPTION_numa:
2863 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2864 optarg, true);
2865 if (!opts) {
2866 exit(1);
2867 }
2868 break;
2869 case QEMU_OPTION_display:
2870 parse_display(optarg);
2871 break;
2872 case QEMU_OPTION_nographic:
2873 qdict_put_str(machine_opts_dict, "graphics", "off");
2874 nographic = true;
2875 dpy.type = DISPLAY_TYPE_NONE;
2876 break;
2877 case QEMU_OPTION_portrait:
2878 graphic_rotate = 90;
2879 break;
2880 case QEMU_OPTION_rotate:
2881 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2882 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2883 graphic_rotate != 180 && graphic_rotate != 270) {
2884 error_report("only 90, 180, 270 deg rotation is available");
2885 exit(1);
2886 }
2887 break;
2888 case QEMU_OPTION_kernel:
2889 qdict_put_str(machine_opts_dict, "kernel", optarg);
2890 break;
2891 case QEMU_OPTION_initrd:
2892 qdict_put_str(machine_opts_dict, "initrd", optarg);
2893 break;
2894 case QEMU_OPTION_append:
2895 qdict_put_str(machine_opts_dict, "append", optarg);
2896 break;
2897 case QEMU_OPTION_dtb:
2898 qdict_put_str(machine_opts_dict, "dtb", optarg);
2899 break;
2900 case QEMU_OPTION_cdrom:
2901 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2902 break;
2903 case QEMU_OPTION_boot:
2904 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2905 break;
2906 case QEMU_OPTION_fda:
2907 case QEMU_OPTION_fdb:
2908 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2909 optarg, FD_OPTS);
2910 break;
2911 case QEMU_OPTION_no_fd_bootchk:
2912 fd_bootchk = 0;
2913 break;
2914 case QEMU_OPTION_netdev:
2915 default_net = 0;
2916 if (netdev_is_modern(optarg)) {
2917 netdev_parse_modern(optarg);
2918 } else {
2919 net_client_parse(qemu_find_opts("netdev"), optarg);
2920 }
2921 break;
2922 case QEMU_OPTION_nic:
2923 default_net = 0;
2924 net_client_parse(qemu_find_opts("nic"), optarg);
2925 break;
2926 case QEMU_OPTION_net:
2927 default_net = 0;
2928 net_client_parse(qemu_find_opts("net"), optarg);
2929 break;
2930 #ifdef CONFIG_LIBISCSI
2931 case QEMU_OPTION_iscsi:
2932 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2933 optarg, false);
2934 if (!opts) {
2935 exit(1);
2936 }
2937 break;
2938 #endif
2939 case QEMU_OPTION_audiodev:
2940 default_audio = 0;
2941 audio_parse_option(optarg);
2942 break;
2943 case QEMU_OPTION_audio: {
2944 bool help;
2945 char *model = NULL;
2946 Audiodev *dev = NULL;
2947 Visitor *v;
2948 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2949 default_audio = 0;
2950 if (help || (qdict_haskey(dict, "driver") &&
2951 is_help_option(qdict_get_str(dict, "driver")))) {
2952 audio_help();
2953 exit(EXIT_SUCCESS);
2954 }
2955 if (!qdict_haskey(dict, "id")) {
2956 qdict_put_str(dict, "id", "audiodev0");
2957 }
2958 if (qdict_haskey(dict, "model")) {
2959 model = g_strdup(qdict_get_str(dict, "model"));
2960 qdict_del(dict, "model");
2961 if (is_help_option(model)) {
2962 show_valid_soundhw();
2963 exit(0);
2964 }
2965 }
2966 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2967 qobject_unref(dict);
2968 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2969 visit_free(v);
2970 if (model) {
2971 audio_define(dev);
2972 select_soundhw(model, dev->id);
2973 g_free(model);
2974 } else {
2975 audio_define_default(dev, &error_fatal);
2976 }
2977 break;
2978 }
2979 case QEMU_OPTION_h:
2980 help(0);
2981 break;
2982 case QEMU_OPTION_version:
2983 version();
2984 exit(0);
2985 break;
2986 case QEMU_OPTION_m:
2987 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
2988 if (opts == NULL) {
2989 exit(1);
2990 }
2991 break;
2992 #ifdef CONFIG_TPM
2993 case QEMU_OPTION_tpmdev:
2994 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
2995 exit(1);
2996 }
2997 break;
2998 #endif
2999 case QEMU_OPTION_mempath:
3000 mem_path = optarg;
3001 break;
3002 case QEMU_OPTION_mem_prealloc:
3003 mem_prealloc = 1;
3004 break;
3005 case QEMU_OPTION_d:
3006 log_mask = optarg;
3007 break;
3008 case QEMU_OPTION_D:
3009 log_file = optarg;
3010 break;
3011 case QEMU_OPTION_DFILTER:
3012 qemu_set_dfilter_ranges(optarg, &error_fatal);
3013 break;
3014 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3015 case QEMU_OPTION_perfmap:
3016 perf_enable_perfmap();
3017 break;
3018 case QEMU_OPTION_jitdump:
3019 perf_enable_jitdump();
3020 break;
3021 #endif
3022 case QEMU_OPTION_seed:
3023 qemu_guest_random_seed_main(optarg, &error_fatal);
3024 break;
3025 case QEMU_OPTION_s:
3026 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3027 break;
3028 case QEMU_OPTION_gdb:
3029 add_device_config(DEV_GDB, optarg);
3030 break;
3031 case QEMU_OPTION_L:
3032 if (is_help_option(optarg)) {
3033 list_data_dirs = true;
3034 } else {
3035 qemu_add_data_dir(g_strdup(optarg));
3036 }
3037 break;
3038 case QEMU_OPTION_bios:
3039 qdict_put_str(machine_opts_dict, "firmware", optarg);
3040 break;
3041 case QEMU_OPTION_singlestep:
3042 opt_one_insn_per_tb = true;
3043 break;
3044 case QEMU_OPTION_S:
3045 autostart = 0;
3046 break;
3047 case QEMU_OPTION_k:
3048 keyboard_layout = optarg;
3049 break;
3050 case QEMU_OPTION_vga:
3051 vga_model = optarg;
3052 default_vga = 0;
3053 break;
3054 case QEMU_OPTION_g:
3055 {
3056 const char *p;
3057 int w, h, depth;
3058 p = optarg;
3059 w = strtol(p, (char **)&p, 10);
3060 if (w <= 0) {
3061 graphic_error:
3062 error_report("invalid resolution or depth");
3063 exit(1);
3064 }
3065 if (*p != 'x')
3066 goto graphic_error;
3067 p++;
3068 h = strtol(p, (char **)&p, 10);
3069 if (h <= 0)
3070 goto graphic_error;
3071 if (*p == 'x') {
3072 p++;
3073 depth = strtol(p, (char **)&p, 10);
3074 if (depth != 1 && depth != 2 && depth != 4 &&
3075 depth != 8 && depth != 15 && depth != 16 &&
3076 depth != 24 && depth != 32)
3077 goto graphic_error;
3078 } else if (*p == '\0') {
3079 depth = graphic_depth;
3080 } else {
3081 goto graphic_error;
3082 }
3083
3084 graphic_width = w;
3085 graphic_height = h;
3086 graphic_depth = depth;
3087 }
3088 break;
3089 case QEMU_OPTION_echr:
3090 {
3091 char *r;
3092 term_escape_char = strtol(optarg, &r, 0);
3093 if (r == optarg)
3094 printf("Bad argument to echr\n");
3095 break;
3096 }
3097 case QEMU_OPTION_monitor:
3098 default_monitor = 0;
3099 if (strncmp(optarg, "none", 4)) {
3100 monitor_parse(optarg, "readline", false);
3101 }
3102 break;
3103 case QEMU_OPTION_qmp:
3104 monitor_parse(optarg, "control", false);
3105 default_monitor = 0;
3106 break;
3107 case QEMU_OPTION_qmp_pretty:
3108 monitor_parse(optarg, "control", true);
3109 default_monitor = 0;
3110 break;
3111 case QEMU_OPTION_mon:
3112 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3113 true);
3114 if (!opts) {
3115 exit(1);
3116 }
3117 default_monitor = 0;
3118 break;
3119 case QEMU_OPTION_chardev:
3120 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3121 optarg, true);
3122 if (!opts) {
3123 exit(1);
3124 }
3125 break;
3126 case QEMU_OPTION_fsdev:
3127 olist = qemu_find_opts("fsdev");
3128 if (!olist) {
3129 error_report("fsdev support is disabled");
3130 exit(1);
3131 }
3132 opts = qemu_opts_parse_noisily(olist, optarg, true);
3133 if (!opts) {
3134 exit(1);
3135 }
3136 break;
3137 case QEMU_OPTION_virtfs: {
3138 QemuOpts *fsdev;
3139 QemuOpts *device;
3140 const char *writeout, *sock_fd, *socket, *path, *security_model,
3141 *multidevs;
3142
3143 olist = qemu_find_opts("virtfs");
3144 if (!olist) {
3145 error_report("virtfs support is disabled");
3146 exit(1);
3147 }
3148 opts = qemu_opts_parse_noisily(olist, optarg, true);
3149 if (!opts) {
3150 exit(1);
3151 }
3152
3153 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3154 qemu_opt_get(opts, "mount_tag") == NULL) {
3155 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3156 exit(1);
3157 }
3158 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3159 qemu_opts_id(opts) ?:
3160 qemu_opt_get(opts, "mount_tag"),
3161 1, NULL);
3162 if (!fsdev) {
3163 error_report("duplicate or invalid fsdev id: %s",
3164 qemu_opt_get(opts, "mount_tag"));
3165 exit(1);
3166 }
3167
3168 writeout = qemu_opt_get(opts, "writeout");
3169 if (writeout) {
3170 #ifdef CONFIG_SYNC_FILE_RANGE
3171 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3172 #else
3173 error_report("writeout=immediate not supported "
3174 "on this platform");
3175 exit(1);
3176 #endif
3177 }
3178 qemu_opt_set(fsdev, "fsdriver",
3179 qemu_opt_get(opts, "fsdriver"), &error_abort);
3180 path = qemu_opt_get(opts, "path");
3181 if (path) {
3182 qemu_opt_set(fsdev, "path", path, &error_abort);
3183 }
3184 security_model = qemu_opt_get(opts, "security_model");
3185 if (security_model) {
3186 qemu_opt_set(fsdev, "security_model", security_model,
3187 &error_abort);
3188 }
3189 socket = qemu_opt_get(opts, "socket");
3190 if (socket) {
3191 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3192 }
3193 sock_fd = qemu_opt_get(opts, "sock_fd");
3194 if (sock_fd) {
3195 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3196 }
3197
3198 qemu_opt_set_bool(fsdev, "readonly",
3199 qemu_opt_get_bool(opts, "readonly", 0),
3200 &error_abort);
3201 multidevs = qemu_opt_get(opts, "multidevs");
3202 if (multidevs) {
3203 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3204 }
3205 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3206 &error_abort);
3207 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3208 qemu_opt_set(device, "fsdev",
3209 qemu_opts_id(fsdev), &error_abort);
3210 qemu_opt_set(device, "mount_tag",
3211 qemu_opt_get(opts, "mount_tag"), &error_abort);
3212 break;
3213 }
3214 case QEMU_OPTION_serial:
3215 add_device_config(DEV_SERIAL, optarg);
3216 default_serial = 0;
3217 if (strncmp(optarg, "mon:", 4) == 0) {
3218 default_monitor = 0;
3219 }
3220 break;
3221 case QEMU_OPTION_action:
3222 olist = qemu_find_opts("action");
3223 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3224 exit(1);
3225 }
3226 break;
3227 case QEMU_OPTION_watchdog_action: {
3228 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3229 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3230 break;
3231 }
3232 case QEMU_OPTION_parallel:
3233 add_device_config(DEV_PARALLEL, optarg);
3234 default_parallel = 0;
3235 if (strncmp(optarg, "mon:", 4) == 0) {
3236 default_monitor = 0;
3237 }
3238 break;
3239 case QEMU_OPTION_debugcon:
3240 add_device_config(DEV_DEBUGCON, optarg);
3241 break;
3242 case QEMU_OPTION_loadvm:
3243 loadvm = optarg;
3244 break;
3245 case QEMU_OPTION_full_screen:
3246 dpy.has_full_screen = true;
3247 dpy.full_screen = true;
3248 break;
3249 case QEMU_OPTION_pidfile:
3250 pid_file = optarg;
3251 break;
3252 case QEMU_OPTION_win2k_hack:
3253 win2k_install_hack = 1;
3254 break;
3255 case QEMU_OPTION_acpitable:
3256 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3257 optarg, true);
3258 if (!opts) {
3259 exit(1);
3260 }
3261 acpi_table_add(opts, &error_fatal);
3262 break;
3263 case QEMU_OPTION_smbios:
3264 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3265 optarg, false);
3266 if (!opts) {
3267 exit(1);
3268 }
3269 smbios_entry_add(opts, &error_fatal);
3270 break;
3271 case QEMU_OPTION_fwcfg:
3272 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3273 optarg, true);
3274 if (opts == NULL) {
3275 exit(1);
3276 }
3277 break;
3278 case QEMU_OPTION_preconfig:
3279 preconfig_requested = true;
3280 break;
3281 case QEMU_OPTION_enable_kvm:
3282 qdict_put_str(machine_opts_dict, "accel", "kvm");
3283 break;
3284 case QEMU_OPTION_M:
3285 case QEMU_OPTION_machine:
3286 {
3287 bool help;
3288
3289 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3290 if (help) {
3291 machine_help_func(machine_opts_dict);
3292 exit(EXIT_SUCCESS);
3293 }
3294 break;
3295 }
3296 case QEMU_OPTION_accel:
3297 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3298 optarg, true);
3299 optarg = qemu_opt_get(accel_opts, "accel");
3300 if (!optarg || is_help_option(optarg)) {
3301 printf("Accelerators supported in QEMU binary:\n");
3302 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3303 false);
3304 for (el = accel_list; el; el = el->next) {
3305 gchar *typename = g_strdup(object_class_get_name(
3306 OBJECT_CLASS(el->data)));
3307 /* omit qtest which is used for tests only */
3308 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3309 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3310 gchar **optname = g_strsplit(typename,
3311 ACCEL_CLASS_SUFFIX, 0);
3312 printf("%s\n", optname[0]);
3313 g_strfreev(optname);
3314 }
3315 g_free(typename);
3316 }
3317 g_slist_free(accel_list);
3318 exit(0);
3319 }
3320 break;
3321 case QEMU_OPTION_usb:
3322 qdict_put_str(machine_opts_dict, "usb", "on");
3323 break;
3324 case QEMU_OPTION_usbdevice:
3325 qdict_put_str(machine_opts_dict, "usb", "on");
3326 add_device_config(DEV_USB, optarg);
3327 break;
3328 case QEMU_OPTION_device:
3329 if (optarg[0] == '{') {
3330 QObject *obj = qobject_from_json(optarg, &error_fatal);
3331 DeviceOption *opt = g_new0(DeviceOption, 1);
3332 opt->opts = qobject_to(QDict, obj);
3333 loc_save(&opt->loc);
3334 assert(opt->opts != NULL);
3335 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3336 } else {
3337 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3338 optarg, true)) {
3339 exit(1);
3340 }
3341 }
3342 break;
3343 case QEMU_OPTION_smp:
3344 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3345 "smp", optarg);
3346 break;
3347 case QEMU_OPTION_vnc:
3348 vnc_parse(optarg);
3349 break;
3350 case QEMU_OPTION_no_acpi:
3351 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3352 qdict_put_str(machine_opts_dict, "acpi", "off");
3353 break;
3354 case QEMU_OPTION_no_hpet:
3355 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3356 qdict_put_str(machine_opts_dict, "hpet", "off");
3357 break;
3358 case QEMU_OPTION_no_reboot:
3359 olist = qemu_find_opts("action");
3360 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3361 break;
3362 case QEMU_OPTION_no_shutdown:
3363 olist = qemu_find_opts("action");
3364 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3365 break;
3366 case QEMU_OPTION_uuid:
3367 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3368 error_report("failed to parse UUID string: wrong format");
3369 exit(1);
3370 }
3371 qemu_uuid_set = true;
3372 break;
3373 case QEMU_OPTION_option_rom:
3374 if (nb_option_roms >= MAX_OPTION_ROMS) {
3375 error_report("too many option ROMs");
3376 exit(1);
3377 }
3378 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3379 optarg, true);
3380 if (!opts) {
3381 exit(1);
3382 }
3383 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3384 option_rom[nb_option_roms].bootindex =
3385 qemu_opt_get_number(opts, "bootindex", -1);
3386 if (!option_rom[nb_option_roms].name) {
3387 error_report("Option ROM file is not specified");
3388 exit(1);
3389 }
3390 nb_option_roms++;
3391 break;
3392 case QEMU_OPTION_semihosting:
3393 qemu_semihosting_enable();
3394 break;
3395 case QEMU_OPTION_semihosting_config:
3396 if (qemu_semihosting_config_options(optarg) != 0) {
3397 exit(1);
3398 }
3399 break;
3400 case QEMU_OPTION_name:
3401 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3402 optarg, true);
3403 if (!opts) {
3404 exit(1);
3405 }
3406 /* Capture guest name if -msg guest-name is used later */
3407 error_guest_name = qemu_opt_get(opts, "guest");
3408 break;
3409 case QEMU_OPTION_prom_env:
3410 if (nb_prom_envs >= MAX_PROM_ENVS) {
3411 error_report("too many prom variables");
3412 exit(1);
3413 }
3414 prom_envs[nb_prom_envs] = optarg;
3415 nb_prom_envs++;
3416 break;
3417 case QEMU_OPTION_old_param:
3418 old_param = 1;
3419 break;
3420 case QEMU_OPTION_rtc:
3421 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3422 false);
3423 if (!opts) {
3424 exit(1);
3425 }
3426 break;
3427 case QEMU_OPTION_icount:
3428 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3429 optarg, true);
3430 if (!icount_opts) {
3431 exit(1);
3432 }
3433 break;
3434 case QEMU_OPTION_incoming:
3435 if (!incoming) {
3436 runstate_set(RUN_STATE_INMIGRATE);
3437 }
3438 incoming = optarg;
3439 break;
3440 case QEMU_OPTION_only_migratable:
3441 only_migratable = 1;
3442 break;
3443 case QEMU_OPTION_nodefaults:
3444 has_defaults = 0;
3445 break;
3446 case QEMU_OPTION_xen_domid:
3447 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3448 error_report("Option not supported for this target");
3449 exit(1);
3450 }
3451 xen_domid = atoi(optarg);
3452 break;
3453 case QEMU_OPTION_xen_attach:
3454 if (!(accel_find("xen"))) {
3455 error_report("Option not supported for this target");
3456 exit(1);
3457 }
3458 xen_mode = XEN_ATTACH;
3459 break;
3460 case QEMU_OPTION_xen_domid_restrict:
3461 if (!(accel_find("xen"))) {
3462 error_report("Option not supported for this target");
3463 exit(1);
3464 }
3465 xen_domid_restrict = true;
3466 break;
3467 case QEMU_OPTION_trace:
3468 trace_opt_parse(optarg);
3469 break;
3470 case QEMU_OPTION_plugin:
3471 qemu_plugin_opt_parse(optarg, &plugin_list);
3472 break;
3473 case QEMU_OPTION_readconfig:
3474 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3475 break;
3476 #ifdef CONFIG_SPICE
3477 case QEMU_OPTION_spice:
3478 olist = qemu_find_opts_err("spice", NULL);
3479 if (!olist) {
3480 error_report("spice support is disabled");
3481 exit(1);
3482 }
3483 opts = qemu_opts_parse_noisily(olist, optarg, false);
3484 if (!opts) {
3485 exit(1);
3486 }
3487 display_remote++;
3488 break;
3489 #endif
3490 case QEMU_OPTION_qtest:
3491 qtest_chrdev = optarg;
3492 break;
3493 case QEMU_OPTION_qtest_log:
3494 qtest_log = optarg;
3495 break;
3496 case QEMU_OPTION_sandbox:
3497 olist = qemu_find_opts("sandbox");
3498 if (!olist) {
3499 #ifndef CONFIG_SECCOMP
3500 error_report("-sandbox support is not enabled "
3501 "in this QEMU binary");
3502 #endif
3503 exit(1);
3504 }
3505
3506 opts = qemu_opts_parse_noisily(olist, optarg, true);
3507 if (!opts) {
3508 exit(1);
3509 }
3510 break;
3511 case QEMU_OPTION_add_fd:
3512 #ifndef _WIN32
3513 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3514 optarg, false);
3515 if (!opts) {
3516 exit(1);
3517 }
3518 #else
3519 error_report("File descriptor passing is disabled on this "
3520 "platform");
3521 exit(1);
3522 #endif
3523 break;
3524 case QEMU_OPTION_object:
3525 object_option_parse(optarg);
3526 break;
3527 case QEMU_OPTION_overcommit:
3528 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3529 optarg, false);
3530 if (!opts) {
3531 exit(1);
3532 }
3533 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3534 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3535 break;
3536 case QEMU_OPTION_compat:
3537 {
3538 CompatPolicy *opts_policy;
3539 Visitor *v;
3540
3541 v = qobject_input_visitor_new_str(optarg, NULL,
3542 &error_fatal);
3543
3544 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3545 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3546
3547 qapi_free_CompatPolicy(opts_policy);
3548 visit_free(v);
3549 break;
3550 }
3551 case QEMU_OPTION_msg:
3552 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3553 false);
3554 if (!opts) {
3555 exit(1);
3556 }
3557 configure_msg(opts);
3558 break;
3559 case QEMU_OPTION_dump_vmstate:
3560 if (vmstate_dump_file) {
3561 error_report("only one '-dump-vmstate' "
3562 "option may be given");
3563 exit(1);
3564 }
3565 vmstate_dump_file = fopen(optarg, "w");
3566 if (vmstate_dump_file == NULL) {
3567 error_report("open %s: %s", optarg, strerror(errno));
3568 exit(1);
3569 }
3570 break;
3571 case QEMU_OPTION_enable_sync_profile:
3572 qsp_enable();
3573 break;
3574 case QEMU_OPTION_nouserconfig:
3575 /* Nothing to be parsed here. Especially, do not error out below. */
3576 break;
3577 #if defined(CONFIG_POSIX)
3578 case QEMU_OPTION_runas:
3579 if (!os_set_runas(optarg)) {
3580 error_report("User \"%s\" doesn't exist"
3581 " (and is not <uid>:<gid>)",
3582 optarg);
3583 exit(1);
3584 }
3585 break;
3586 case QEMU_OPTION_chroot:
3587 warn_report("option is deprecated,"
3588 " use '-run-with chroot=...' instead");
3589 os_set_chroot(optarg);
3590 break;
3591 case QEMU_OPTION_daemonize:
3592 os_set_daemonize(true);
3593 break;
3594 #if defined(CONFIG_LINUX)
3595 /* deprecated */
3596 case QEMU_OPTION_asyncteardown:
3597 init_async_teardown();
3598 break;
3599 #endif
3600 case QEMU_OPTION_run_with: {
3601 const char *str;
3602 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3603 optarg, false);
3604 if (!opts) {
3605 exit(1);
3606 }
3607 #if defined(CONFIG_LINUX)
3608 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3609 init_async_teardown();
3610 }
3611 #endif
3612 str = qemu_opt_get(opts, "chroot");
3613 if (str) {
3614 os_set_chroot(str);
3615 }
3616 break;
3617 }
3618 #endif /* CONFIG_POSIX */
3619
3620 default:
3621 error_report("Option not supported in this build");
3622 exit(1);
3623 }
3624 }
3625 }
3626 /*
3627 * Clear error location left behind by the loop.
3628 * Best done right after the loop. Do not insert code here!
3629 */
3630 loc_set_none();
3631
3632 qemu_validate_options(machine_opts_dict);
3633 qemu_process_sugar_options();
3634
3635 /*
3636 * These options affect everything else and should be processed
3637 * before daemonizing.
3638 */
3639 qemu_process_early_options();
3640
3641 qemu_process_help_options();
3642 qemu_maybe_daemonize(pid_file);
3643
3644 /*
3645 * The trace backend must be initialized after daemonizing.
3646 * trace_init_backends() will call st_init(), which will create the
3647 * trace thread in the parent, and also register st_flush_trace_buffer()
3648 * in atexit(). This function will force the parent to wait for the
3649 * writeout thread to finish, which will not occur, and the parent
3650 * process will be left in the host.
3651 */
3652 if (!trace_init_backends()) {
3653 exit(1);
3654 }
3655 trace_init_file();
3656
3657 qemu_init_main_loop(&error_fatal);
3658 cpu_timers_init();
3659
3660 user_register_global_props();
3661 replay_configure(icount_opts);
3662
3663 configure_rtc(qemu_find_opts_singleton("rtc"));
3664
3665 /* Transfer QemuOpts options into machine options */
3666 parse_memory_options();
3667
3668 qemu_create_machine(machine_opts_dict);
3669
3670 suspend_mux_open();
3671
3672 qemu_disable_default_devices();
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
3717 /*
3718 * Note: creates a QOM object, must run only after global and
3719 * compat properties have been set up.
3720 */
3721 migration_object_init();
3722
3723 /* parse features once if machine provides default cpu_type */
3724 current_machine->cpu_type = machine_class->default_cpu_type;
3725 if (cpu_option) {
3726 current_machine->cpu_type = parse_cpu_option(cpu_option);
3727 }
3728 /* NB: for machine none cpu_type could STILL be NULL here! */
3729
3730 qemu_resolve_machine_memdev();
3731 parse_numa_opts(current_machine);
3732
3733 if (vmstate_dump_file) {
3734 /* dump and exit */
3735 module_load_qom_all();
3736 dump_vmstate_json_to_file(vmstate_dump_file);
3737 exit(0);
3738 }
3739
3740 if (!preconfig_requested) {
3741 qmp_x_exit_preconfig(&error_fatal);
3742 }
3743 qemu_init_displays();
3744 accel_setup_post(current_machine);
3745 os_setup_post();
3746 resume_mux_open();
3747 }
AR7 emulation for QEMU