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migration: save_compress_page() can take block through pss
[mirror_qemu.git] / system / vl.c
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 = "sockets",
731 .type = QEMU_OPT_NUMBER,
732 }, {
733 .name = "dies",
734 .type = QEMU_OPT_NUMBER,
735 }, {
736 .name = "clusters",
737 .type = QEMU_OPT_NUMBER,
738 }, {
739 .name = "cores",
740 .type = QEMU_OPT_NUMBER,
741 }, {
742 .name = "threads",
743 .type = QEMU_OPT_NUMBER,
744 }, {
745 .name = "maxcpus",
746 .type = QEMU_OPT_NUMBER,
747 },
748 { /*End of list */ }
749 },
750 };
751
752 #if defined(CONFIG_POSIX)
753 static QemuOptsList qemu_run_with_opts = {
754 .name = "run-with",
755 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
756 .desc = {
757 #if defined(CONFIG_LINUX)
758 {
759 .name = "async-teardown",
760 .type = QEMU_OPT_BOOL,
761 },
762 #endif
763 {
764 .name = "chroot",
765 .type = QEMU_OPT_STRING,
766 },
767 { /* end of list */ }
768 },
769 };
770
771 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
772
773 #else
774
775 #define qemu_add_run_with_opts()
776
777 #endif /* CONFIG_POSIX */
778
779 static void realtime_init(void)
780 {
781 if (enable_mlock) {
782 if (os_mlock() < 0) {
783 error_report("locking memory failed");
784 exit(1);
785 }
786 }
787 }
788
789
790 static void configure_msg(QemuOpts *opts)
791 {
792 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
793 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
794 }
795
796
797 /***********************************************************/
798 /* USB devices */
799
800 static int usb_device_add(const char *devname)
801 {
802 USBDevice *dev = NULL;
803
804 if (!machine_usb(current_machine)) {
805 return -1;
806 }
807
808 dev = usbdevice_create(devname);
809 if (!dev)
810 return -1;
811
812 return 0;
813 }
814
815 static int usb_parse(const char *cmdline)
816 {
817 int r;
818 r = usb_device_add(cmdline);
819 if (r < 0) {
820 error_report("could not add USB device '%s'", cmdline);
821 }
822 return r;
823 }
824
825 /***********************************************************/
826 /* machine registration */
827
828 static MachineClass *find_machine(const char *name, GSList *machines)
829 {
830 GSList *el;
831
832 for (el = machines; el; el = el->next) {
833 MachineClass *mc = el->data;
834
835 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
836 return mc;
837 }
838 }
839
840 return NULL;
841 }
842
843 static MachineClass *find_default_machine(GSList *machines)
844 {
845 GSList *el;
846 MachineClass *default_machineclass = NULL;
847
848 for (el = machines; el; el = el->next) {
849 MachineClass *mc = el->data;
850
851 if (mc->is_default) {
852 assert(default_machineclass == NULL && "Multiple default machines");
853 default_machineclass = mc;
854 }
855 }
856
857 return default_machineclass;
858 }
859
860 static void version(void)
861 {
862 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
863 QEMU_COPYRIGHT "\n");
864 }
865
866 static void help(int exitcode)
867 {
868 version();
869 printf("usage: %s [options] [disk_image]\n\n"
870 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
871 g_get_prgname());
872
873 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
874 if ((arch_mask) & arch_type) \
875 fputs(opt_help, stdout);
876
877 #define ARCHHEADING(text, arch_mask) \
878 if ((arch_mask) & arch_type) \
879 puts(stringify(text));
880
881 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
882
883 #include "qemu-options.def"
884
885 printf("\nDuring emulation, the following keys are useful:\n"
886 "ctrl-alt-f toggle full screen\n"
887 "ctrl-alt-n switch to virtual console 'n'\n"
888 "ctrl-alt toggle mouse and keyboard grab\n"
889 "\n"
890 "When using -nographic, press 'ctrl-a h' to get some help.\n"
891 "\n"
892 QEMU_HELP_BOTTOM "\n");
893
894 exit(exitcode);
895 }
896
897 enum {
898
899 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
900 opt_enum,
901 #define DEFHEADING(text)
902 #define ARCHHEADING(text, arch_mask)
903
904 #include "qemu-options.def"
905 };
906
907 #define HAS_ARG 0x0001
908
909 typedef struct QEMUOption {
910 const char *name;
911 int flags;
912 int index;
913 uint32_t arch_mask;
914 } QEMUOption;
915
916 static const QEMUOption qemu_options[] = {
917 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
918
919 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
920 { option, opt_arg, opt_enum, arch_mask },
921 #define DEFHEADING(text)
922 #define ARCHHEADING(text, arch_mask)
923
924 #include "qemu-options.def"
925 { /* end of list */ }
926 };
927
928 typedef struct VGAInterfaceInfo {
929 const char *opt_name; /* option name */
930 const char *name; /* human-readable name */
931 /* Class names indicating that support is available.
932 * If no class is specified, the interface is always available */
933 const char *class_names[2];
934 } VGAInterfaceInfo;
935
936 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
937 [VGA_NONE] = {
938 .opt_name = "none",
939 .name = "no graphic card",
940 },
941 [VGA_STD] = {
942 .opt_name = "std",
943 .name = "standard VGA",
944 .class_names = { "VGA", "isa-vga" },
945 },
946 [VGA_CIRRUS] = {
947 .opt_name = "cirrus",
948 .name = "Cirrus VGA",
949 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
950 },
951 [VGA_VMWARE] = {
952 .opt_name = "vmware",
953 .name = "VMWare SVGA",
954 .class_names = { "vmware-svga" },
955 },
956 [VGA_VIRTIO] = {
957 .opt_name = "virtio",
958 .name = "Virtio VGA",
959 .class_names = { "virtio-vga" },
960 },
961 [VGA_QXL] = {
962 .opt_name = "qxl",
963 .name = "QXL VGA",
964 .class_names = { "qxl-vga" },
965 },
966 [VGA_TCX] = {
967 .opt_name = "tcx",
968 .name = "TCX framebuffer",
969 .class_names = { "sun-tcx" },
970 },
971 [VGA_CG3] = {
972 .opt_name = "cg3",
973 .name = "CG3 framebuffer",
974 .class_names = { "cgthree" },
975 },
976 #ifdef CONFIG_XEN_BACKEND
977 [VGA_XENFB] = {
978 .opt_name = "xenfb",
979 .name = "Xen paravirtualized framebuffer",
980 },
981 #endif
982 };
983
984 static bool vga_interface_available(VGAInterfaceType t)
985 {
986 const VGAInterfaceInfo *ti = &vga_interfaces[t];
987
988 assert(t < VGA_TYPE_MAX);
989 return !ti->class_names[0] ||
990 module_object_class_by_name(ti->class_names[0]) ||
991 module_object_class_by_name(ti->class_names[1]);
992 }
993
994 static const char *
995 get_default_vga_model(const MachineClass *machine_class)
996 {
997 if (machine_class->default_display) {
998 for (int t = 0; t < VGA_TYPE_MAX; t++) {
999 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1000
1001 if (ti->opt_name && vga_interface_available(t) &&
1002 g_str_equal(ti->opt_name, machine_class->default_display)) {
1003 return machine_class->default_display;
1004 }
1005 }
1006
1007 warn_report_once("Default display '%s' is not available in this binary",
1008 machine_class->default_display);
1009 return NULL;
1010 } else if (vga_interface_available(VGA_CIRRUS)) {
1011 return "cirrus";
1012 } else if (vga_interface_available(VGA_STD)) {
1013 return "std";
1014 }
1015
1016 return NULL;
1017 }
1018
1019 static void select_vgahw(const MachineClass *machine_class, const char *p)
1020 {
1021 const char *opts;
1022 int t;
1023
1024 if (g_str_equal(p, "help")) {
1025 const char *def = get_default_vga_model(machine_class);
1026
1027 for (t = 0; t < VGA_TYPE_MAX; t++) {
1028 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1029
1030 if (vga_interface_available(t) && ti->opt_name) {
1031 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1032 (def && g_str_equal(ti->opt_name, def)) ?
1033 " (default)" : "");
1034 }
1035 }
1036 exit(0);
1037 }
1038
1039 assert(vga_interface_type == VGA_NONE);
1040 for (t = 0; t < VGA_TYPE_MAX; t++) {
1041 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1042 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1043 if (!vga_interface_available(t)) {
1044 error_report("%s not available", ti->name);
1045 exit(1);
1046 }
1047 vga_interface_type = t;
1048 break;
1049 }
1050 }
1051 if (t == VGA_TYPE_MAX) {
1052 invalid_vga:
1053 error_report("unknown vga type: %s", p);
1054 exit(1);
1055 }
1056 while (*opts) {
1057 const char *nextopt;
1058
1059 if (strstart(opts, ",retrace=", &nextopt)) {
1060 opts = nextopt;
1061 if (strstart(opts, "dumb", &nextopt))
1062 vga_retrace_method = VGA_RETRACE_DUMB;
1063 else if (strstart(opts, "precise", &nextopt))
1064 vga_retrace_method = VGA_RETRACE_PRECISE;
1065 else goto invalid_vga;
1066 } else goto invalid_vga;
1067 opts = nextopt;
1068 }
1069 }
1070
1071 static void parse_display_qapi(const char *str)
1072 {
1073 DisplayOptions *opts;
1074 Visitor *v;
1075
1076 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1077
1078 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1079 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1080
1081 qapi_free_DisplayOptions(opts);
1082 visit_free(v);
1083 }
1084
1085 DisplayOptions *qmp_query_display_options(Error **errp)
1086 {
1087 return QAPI_CLONE(DisplayOptions, &dpy);
1088 }
1089
1090 static void parse_display(const char *p)
1091 {
1092 const char *opts;
1093
1094 if (is_help_option(p)) {
1095 qemu_display_help();
1096 exit(0);
1097 }
1098
1099 if (strstart(p, "vnc", &opts)) {
1100 /*
1101 * vnc isn't a (local) DisplayType but a protocol for remote
1102 * display access.
1103 */
1104 if (*opts == '=') {
1105 vnc_parse(opts + 1);
1106 } else {
1107 error_report("VNC requires a display argument vnc=<display>");
1108 exit(1);
1109 }
1110 } else {
1111 parse_display_qapi(p);
1112 }
1113 }
1114
1115 static inline bool nonempty_str(const char *str)
1116 {
1117 return str && *str;
1118 }
1119
1120 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1121 {
1122 gchar *buf;
1123 size_t size;
1124 const char *name, *file, *str, *gen_id;
1125 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1126
1127 if (fw_cfg == NULL) {
1128 error_setg(errp, "fw_cfg device not available");
1129 return -1;
1130 }
1131 name = qemu_opt_get(opts, "name");
1132 file = qemu_opt_get(opts, "file");
1133 str = qemu_opt_get(opts, "string");
1134 gen_id = qemu_opt_get(opts, "gen_id");
1135
1136 /* we need the name, and exactly one of: file, content string, gen_id */
1137 if (!nonempty_str(name) ||
1138 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1139 error_setg(errp, "name, plus exactly one of file,"
1140 " string and gen_id, are needed");
1141 return -1;
1142 }
1143 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1144 error_setg(errp, "name too long (max. %d char)",
1145 FW_CFG_MAX_FILE_PATH - 1);
1146 return -1;
1147 }
1148 if (nonempty_str(gen_id)) {
1149 /*
1150 * In this particular case where the content is populated
1151 * internally, the "etc/" namespace protection is relaxed,
1152 * so do not emit a warning.
1153 */
1154 } else if (strncmp(name, "opt/", 4) != 0) {
1155 warn_report("externally provided fw_cfg item names "
1156 "should be prefixed with \"opt/\"");
1157 }
1158 if (nonempty_str(str)) {
1159 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1160 buf = g_memdup(str, size);
1161 } else if (nonempty_str(gen_id)) {
1162 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1163 return -1;
1164 }
1165 return 0;
1166 } else {
1167 GError *err = NULL;
1168 if (!g_file_get_contents(file, &buf, &size, &err)) {
1169 error_setg(errp, "can't load %s: %s", file, err->message);
1170 g_error_free(err);
1171 return -1;
1172 }
1173 }
1174 /* For legacy, keep user files in a specific global order. */
1175 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1176 fw_cfg_add_file(fw_cfg, name, buf, size);
1177 fw_cfg_reset_order_override(fw_cfg);
1178 return 0;
1179 }
1180
1181 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1182 {
1183 return qdev_device_help(opts);
1184 }
1185
1186 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1187 {
1188 DeviceState *dev;
1189
1190 dev = qdev_device_add(opts, errp);
1191 if (!dev && *errp) {
1192 error_report_err(*errp);
1193 return -1;
1194 } else if (dev) {
1195 object_unref(OBJECT(dev));
1196 }
1197 return 0;
1198 }
1199
1200 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1201 {
1202 Error *local_err = NULL;
1203
1204 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1205 if (local_err) {
1206 error_propagate(errp, local_err);
1207 return -1;
1208 }
1209 exit(0);
1210 }
1211 return 0;
1212 }
1213
1214 #ifdef CONFIG_VIRTFS
1215 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1216 {
1217 return qemu_fsdev_add(opts, errp);
1218 }
1219 #endif
1220
1221 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1222 {
1223 return monitor_init_opts(opts, errp);
1224 }
1225
1226 static void monitor_parse(const char *str, const char *mode, bool pretty)
1227 {
1228 static int monitor_device_index = 0;
1229 QemuOpts *opts;
1230 const char *p;
1231 char label[32];
1232
1233 if (strstart(str, "chardev:", &p)) {
1234 snprintf(label, sizeof(label), "%s", p);
1235 } else {
1236 snprintf(label, sizeof(label), "compat_monitor%d",
1237 monitor_device_index);
1238 opts = qemu_chr_parse_compat(label, str, true);
1239 if (!opts) {
1240 error_report("parse error: %s", str);
1241 exit(1);
1242 }
1243 }
1244
1245 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1246 qemu_opt_set(opts, "mode", mode, &error_abort);
1247 qemu_opt_set(opts, "chardev", label, &error_abort);
1248 if (!strcmp(mode, "control")) {
1249 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1250 } else {
1251 assert(pretty == false);
1252 }
1253 monitor_device_index++;
1254 }
1255
1256 struct device_config {
1257 enum {
1258 DEV_USB, /* -usbdevice */
1259 DEV_SERIAL, /* -serial */
1260 DEV_PARALLEL, /* -parallel */
1261 DEV_DEBUGCON, /* -debugcon */
1262 DEV_GDB, /* -gdb, -s */
1263 DEV_SCLP, /* s390 sclp */
1264 } type;
1265 const char *cmdline;
1266 Location loc;
1267 QTAILQ_ENTRY(device_config) next;
1268 };
1269
1270 static QTAILQ_HEAD(, device_config) device_configs =
1271 QTAILQ_HEAD_INITIALIZER(device_configs);
1272
1273 static void add_device_config(int type, const char *cmdline)
1274 {
1275 struct device_config *conf;
1276
1277 conf = g_malloc0(sizeof(*conf));
1278 conf->type = type;
1279 conf->cmdline = cmdline;
1280 loc_save(&conf->loc);
1281 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1282 }
1283
1284 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1285 {
1286 struct device_config *conf;
1287 int rc;
1288
1289 QTAILQ_FOREACH(conf, &device_configs, next) {
1290 if (conf->type != type)
1291 continue;
1292 loc_push_restore(&conf->loc);
1293 rc = func(conf->cmdline);
1294 loc_pop(&conf->loc);
1295 if (rc) {
1296 return rc;
1297 }
1298 }
1299 return 0;
1300 }
1301
1302 static void qemu_disable_default_devices(void)
1303 {
1304 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1305
1306 default_driver_check_json();
1307 qemu_opts_foreach(qemu_find_opts("device"),
1308 default_driver_check, NULL, NULL);
1309 qemu_opts_foreach(qemu_find_opts("global"),
1310 default_driver_check, NULL, NULL);
1311
1312 if (!vga_model && !default_vga) {
1313 vga_interface_type = VGA_DEVICE;
1314 vga_interface_created = true;
1315 }
1316 if (!has_defaults || machine_class->no_serial) {
1317 default_serial = 0;
1318 }
1319 if (!has_defaults || machine_class->no_parallel) {
1320 default_parallel = 0;
1321 }
1322 if (!has_defaults || machine_class->no_floppy) {
1323 default_floppy = 0;
1324 }
1325 if (!has_defaults || machine_class->no_cdrom) {
1326 default_cdrom = 0;
1327 }
1328 if (!has_defaults || machine_class->no_sdcard) {
1329 default_sdcard = 0;
1330 }
1331 if (!has_defaults) {
1332 default_audio = 0;
1333 default_monitor = 0;
1334 default_net = 0;
1335 default_vga = 0;
1336 } else {
1337 if (default_net && machine_class->default_nic &&
1338 !module_object_class_by_name(machine_class->default_nic)) {
1339 warn_report("Default NIC '%s' is not available in this binary",
1340 machine_class->default_nic);
1341 default_net = 0;
1342 }
1343 }
1344 }
1345
1346 static void qemu_create_default_devices(void)
1347 {
1348 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1349
1350 if (is_daemonized()) {
1351 /* According to documentation and historically, -nographic redirects
1352 * serial port, parallel port and monitor to stdio, which does not work
1353 * with -daemonize. We can redirect these to null instead, but since
1354 * -nographic is legacy, let's just error out.
1355 * We disallow -nographic only if all other ports are not redirected
1356 * explicitly, to not break existing legacy setups which uses
1357 * -nographic _and_ redirects all ports explicitly - this is valid
1358 * usage, -nographic is just a no-op in this case.
1359 */
1360 if (nographic
1361 && (default_parallel || default_serial || default_monitor)) {
1362 error_report("-nographic cannot be used with -daemonize");
1363 exit(1);
1364 }
1365 }
1366
1367 if (nographic) {
1368 if (default_parallel)
1369 add_device_config(DEV_PARALLEL, "null");
1370 if (default_serial && default_monitor) {
1371 add_device_config(DEV_SERIAL, "mon:stdio");
1372 } else {
1373 if (default_serial)
1374 add_device_config(DEV_SERIAL, "stdio");
1375 if (default_monitor)
1376 monitor_parse("stdio", "readline", false);
1377 }
1378 } else {
1379 if (default_serial)
1380 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1381 if (default_parallel)
1382 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1383 if (default_monitor)
1384 monitor_parse("vc:80Cx24C", "readline", false);
1385 }
1386
1387 if (default_net) {
1388 QemuOptsList *net = qemu_find_opts("net");
1389 qemu_opts_parse(net, "nic", true, &error_abort);
1390 #ifdef CONFIG_SLIRP
1391 qemu_opts_parse(net, "user", true, &error_abort);
1392 #endif
1393 }
1394
1395 #if defined(CONFIG_VNC)
1396 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
1397 display_remote++;
1398 }
1399 #endif
1400 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1401 if (!qemu_display_find_default(&dpy)) {
1402 dpy.type = DISPLAY_TYPE_NONE;
1403 #if defined(CONFIG_VNC)
1404 vnc_parse("localhost:0,to=99,id=default");
1405 #endif
1406 }
1407 }
1408 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1409 dpy.type = DISPLAY_TYPE_NONE;
1410 }
1411
1412 /* If no default VGA is requested, the default is "none". */
1413 if (default_vga) {
1414 vga_model = get_default_vga_model(machine_class);
1415 }
1416 if (vga_model) {
1417 select_vgahw(machine_class, vga_model);
1418 }
1419 }
1420
1421 static int serial_parse(const char *devname)
1422 {
1423 int index = num_serial_hds;
1424 char label[32];
1425
1426 if (strcmp(devname, "none") == 0)
1427 return 0;
1428 snprintf(label, sizeof(label), "serial%d", index);
1429 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1430
1431 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1432 if (!serial_hds[index]) {
1433 error_report("could not connect serial device"
1434 " to character backend '%s'", devname);
1435 return -1;
1436 }
1437 num_serial_hds++;
1438 return 0;
1439 }
1440
1441 Chardev *serial_hd(int i)
1442 {
1443 assert(i >= 0);
1444 if (i < num_serial_hds) {
1445 return serial_hds[i];
1446 }
1447 return NULL;
1448 }
1449
1450 static int parallel_parse(const char *devname)
1451 {
1452 static int index = 0;
1453 char label[32];
1454
1455 if (strcmp(devname, "none") == 0)
1456 return 0;
1457 if (index == MAX_PARALLEL_PORTS) {
1458 error_report("too many parallel ports");
1459 exit(1);
1460 }
1461 snprintf(label, sizeof(label), "parallel%d", index);
1462 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1463 if (!parallel_hds[index]) {
1464 error_report("could not connect parallel device"
1465 " to character backend '%s'", devname);
1466 return -1;
1467 }
1468 index++;
1469 return 0;
1470 }
1471
1472 static int debugcon_parse(const char *devname)
1473 {
1474 QemuOpts *opts;
1475
1476 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1477 error_report("invalid character backend '%s'", devname);
1478 exit(1);
1479 }
1480 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1481 if (!opts) {
1482 error_report("already have a debugcon device");
1483 exit(1);
1484 }
1485 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1486 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1487 return 0;
1488 }
1489
1490 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1491 {
1492 const MachineClass *mc1 = a, *mc2 = b;
1493 int res;
1494
1495 if (mc1->family == NULL) {
1496 if (mc2->family == NULL) {
1497 /* Compare standalone machine types against each other; they sort
1498 * in increasing order.
1499 */
1500 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1501 object_class_get_name(OBJECT_CLASS(mc2)));
1502 }
1503
1504 /* Standalone machine types sort after families. */
1505 return 1;
1506 }
1507
1508 if (mc2->family == NULL) {
1509 /* Families sort before standalone machine types. */
1510 return -1;
1511 }
1512
1513 /* Families sort between each other alphabetically increasingly. */
1514 res = strcmp(mc1->family, mc2->family);
1515 if (res != 0) {
1516 return res;
1517 }
1518
1519 /* Within the same family, machine types sort in decreasing order. */
1520 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1521 object_class_get_name(OBJECT_CLASS(mc1)));
1522 }
1523
1524 static void machine_help_func(const QDict *qdict)
1525 {
1526 GSList *machines, *el;
1527 const char *type = qdict_get_try_str(qdict, "type");
1528
1529 machines = object_class_get_list(TYPE_MACHINE, false);
1530 if (type) {
1531 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1532 if (machine_class) {
1533 type_print_class_properties(object_class_get_name(machine_class));
1534 return;
1535 }
1536 }
1537
1538 printf("Supported machines are:\n");
1539 machines = g_slist_sort(machines, machine_class_cmp);
1540 for (el = machines; el; el = el->next) {
1541 MachineClass *mc = el->data;
1542 if (mc->alias) {
1543 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1544 }
1545 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1546 mc->is_default ? " (default)" : "",
1547 mc->deprecation_reason ? " (deprecated)" : "");
1548 }
1549 }
1550
1551 static void
1552 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1553 {
1554 QDict *opts;
1555
1556 opts = qdict_new();
1557 /* Preserve the caller's reference to prop. */
1558 qobject_ref(prop);
1559 qdict_put(opts, propname, prop);
1560 keyval_merge(machine_opts_dict, opts, errp);
1561 qobject_unref(opts);
1562 }
1563
1564 static void
1565 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1566 const char *arg)
1567 {
1568 QDict *prop = NULL;
1569 bool help = false;
1570
1571 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1572 if (help) {
1573 qemu_opts_print_help(opts_list, true);
1574 exit(0);
1575 }
1576 machine_merge_property(propname, prop, &error_fatal);
1577 qobject_unref(prop);
1578 }
1579
1580 static const char *pid_file;
1581 struct UnlinkPidfileNotifier {
1582 Notifier notifier;
1583 char *pid_file_realpath;
1584 };
1585 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1586
1587 static void qemu_unlink_pidfile(Notifier *n, void *data)
1588 {
1589 struct UnlinkPidfileNotifier *upn;
1590
1591 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1592 unlink(upn->pid_file_realpath);
1593 }
1594
1595 static const QEMUOption *lookup_opt(int argc, char **argv,
1596 const char **poptarg, int *poptind)
1597 {
1598 const QEMUOption *popt;
1599 int optind = *poptind;
1600 char *r = argv[optind];
1601 const char *optarg;
1602
1603 loc_set_cmdline(argv, optind, 1);
1604 optind++;
1605 /* Treat --foo the same as -foo. */
1606 if (r[1] == '-')
1607 r++;
1608 popt = qemu_options;
1609 for(;;) {
1610 if (!popt->name) {
1611 error_report("invalid option");
1612 exit(1);
1613 }
1614 if (!strcmp(popt->name, r + 1))
1615 break;
1616 popt++;
1617 }
1618 if (popt->flags & HAS_ARG) {
1619 if (optind >= argc) {
1620 error_report("requires an argument");
1621 exit(1);
1622 }
1623 optarg = argv[optind++];
1624 loc_set_cmdline(argv, optind - 2, 2);
1625 } else {
1626 optarg = NULL;
1627 }
1628
1629 *poptarg = optarg;
1630 *poptind = optind;
1631
1632 return popt;
1633 }
1634
1635 static MachineClass *select_machine(QDict *qdict, Error **errp)
1636 {
1637 const char *machine_type = qdict_get_try_str(qdict, "type");
1638 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1639 MachineClass *machine_class;
1640 Error *local_err = NULL;
1641
1642 if (machine_type) {
1643 machine_class = find_machine(machine_type, machines);
1644 qdict_del(qdict, "type");
1645 if (!machine_class) {
1646 error_setg(&local_err, "unsupported machine type");
1647 }
1648 } else {
1649 machine_class = find_default_machine(machines);
1650 if (!machine_class) {
1651 error_setg(&local_err, "No machine specified, and there is no default");
1652 }
1653 }
1654
1655 g_slist_free(machines);
1656 if (local_err) {
1657 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1658 error_propagate(errp, local_err);
1659 }
1660 return machine_class;
1661 }
1662
1663 static int object_parse_property_opt(Object *obj,
1664 const char *name, const char *value,
1665 const char *skip, Error **errp)
1666 {
1667 if (g_str_equal(name, skip)) {
1668 return 0;
1669 }
1670
1671 if (!object_property_parse(obj, name, value, errp)) {
1672 return -1;
1673 }
1674
1675 return 0;
1676 }
1677
1678 /* *Non*recursively replace underscores with dashes in QDict keys. */
1679 static void keyval_dashify(QDict *qdict, Error **errp)
1680 {
1681 const QDictEntry *ent, *next;
1682 char *p;
1683
1684 for (ent = qdict_first(qdict); ent; ent = next) {
1685 g_autofree char *new_key = NULL;
1686
1687 next = qdict_next(qdict, ent);
1688 if (!strchr(ent->key, '_')) {
1689 continue;
1690 }
1691 new_key = g_strdup(ent->key);
1692 for (p = new_key; *p; p++) {
1693 if (*p == '_') {
1694 *p = '-';
1695 }
1696 }
1697 if (qdict_haskey(qdict, new_key)) {
1698 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1699 return;
1700 }
1701 qobject_ref(ent->value);
1702 qdict_put_obj(qdict, new_key, ent->value);
1703 qdict_del(qdict, ent->key);
1704 }
1705 }
1706
1707 static void qemu_apply_legacy_machine_options(QDict *qdict)
1708 {
1709 const char *value;
1710 QObject *prop;
1711
1712 keyval_dashify(qdict, &error_fatal);
1713
1714 /* Legacy options do not correspond to MachineState properties. */
1715 value = qdict_get_try_str(qdict, "accel");
1716 if (value) {
1717 accelerators = g_strdup(value);
1718 qdict_del(qdict, "accel");
1719 }
1720
1721 value = qdict_get_try_str(qdict, "igd-passthru");
1722 if (value) {
1723 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1724 false);
1725 qdict_del(qdict, "igd-passthru");
1726 }
1727
1728 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1729 if (value) {
1730 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1731 false);
1732 qdict_del(qdict, "kvm-shadow-mem");
1733 }
1734
1735 value = qdict_get_try_str(qdict, "kernel-irqchip");
1736 if (value) {
1737 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1738 false);
1739 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1740 false);
1741 qdict_del(qdict, "kernel-irqchip");
1742 }
1743
1744 value = qdict_get_try_str(qdict, "memory-backend");
1745 if (value) {
1746 if (mem_path) {
1747 error_report("'-mem-path' can't be used together with"
1748 "'-machine memory-backend'");
1749 exit(EXIT_FAILURE);
1750 }
1751
1752 /* Resolved later. */
1753 ram_memdev_id = g_strdup(value);
1754 qdict_del(qdict, "memory-backend");
1755 }
1756
1757 prop = qdict_get(qdict, "memory");
1758 if (prop) {
1759 have_custom_ram_size =
1760 qobject_type(prop) == QTYPE_QDICT &&
1761 qdict_haskey(qobject_to(QDict, prop), "size");
1762 }
1763 }
1764
1765 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1766 {
1767 ObjectOption *opt, *next;
1768
1769 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1770 const char *type = ObjectType_str(opt->opts->qom_type);
1771 if (type_opt_predicate(type)) {
1772 user_creatable_add_qapi(opt->opts, &error_fatal);
1773 qapi_free_ObjectOptions(opt->opts);
1774 QTAILQ_REMOVE(&object_opts, opt, next);
1775 g_free(opt);
1776 }
1777 }
1778 }
1779
1780 static void object_option_add_visitor(Visitor *v)
1781 {
1782 ObjectOption *opt = g_new0(ObjectOption, 1);
1783 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1784 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1785 }
1786
1787 static void object_option_parse(const char *str)
1788 {
1789 QemuOpts *opts;
1790 const char *type;
1791 Visitor *v;
1792
1793 if (str[0] == '{') {
1794 QObject *obj = qobject_from_json(str, &error_fatal);
1795
1796 v = qobject_input_visitor_new(obj);
1797 qobject_unref(obj);
1798 } else {
1799 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1800 str, true);
1801 if (!opts) {
1802 exit(1);
1803 }
1804
1805 type = qemu_opt_get(opts, "qom-type");
1806 if (!type) {
1807 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1808 }
1809 if (user_creatable_print_help(type, opts)) {
1810 exit(0);
1811 }
1812
1813 v = opts_visitor_new(opts);
1814 }
1815
1816 object_option_add_visitor(v);
1817 visit_free(v);
1818 }
1819
1820 /*
1821 * Very early object creation, before the sandbox options have been activated.
1822 */
1823 static bool object_create_pre_sandbox(const char *type)
1824 {
1825 /*
1826 * Objects should in general not get initialized "too early" without
1827 * a reason. If you add one, state the reason in a comment!
1828 */
1829
1830 /*
1831 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1832 * affinity of threads.
1833 */
1834 if (g_str_equal(type, "thread-context")) {
1835 return true;
1836 }
1837
1838 return false;
1839 }
1840
1841 /*
1842 * Initial object creation happens before all other
1843 * QEMU data types are created. The majority of objects
1844 * can be created at this point. The rng-egd object
1845 * cannot be created here, as it depends on the chardev
1846 * already existing.
1847 */
1848 static bool object_create_early(const char *type)
1849 {
1850 /*
1851 * Objects should not be made "delayed" without a reason. If you
1852 * add one, state the reason in a comment!
1853 */
1854
1855 /* Reason: already created. */
1856 if (object_create_pre_sandbox(type)) {
1857 return false;
1858 }
1859
1860 /* Reason: property "chardev" */
1861 if (g_str_equal(type, "rng-egd") ||
1862 g_str_equal(type, "qtest")) {
1863 return false;
1864 }
1865
1866 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1867 /* Reason: cryptodev-vhost-user property "chardev" */
1868 if (g_str_equal(type, "cryptodev-vhost-user")) {
1869 return false;
1870 }
1871 #endif
1872
1873 /* Reason: vhost-user-blk-server property "node-name" */
1874 if (g_str_equal(type, "vhost-user-blk-server")) {
1875 return false;
1876 }
1877 /*
1878 * Reason: filter-* property "netdev" etc.
1879 */
1880 if (g_str_equal(type, "filter-buffer") ||
1881 g_str_equal(type, "filter-dump") ||
1882 g_str_equal(type, "filter-mirror") ||
1883 g_str_equal(type, "filter-redirector") ||
1884 g_str_equal(type, "colo-compare") ||
1885 g_str_equal(type, "filter-rewriter") ||
1886 g_str_equal(type, "filter-replay")) {
1887 return false;
1888 }
1889
1890 /*
1891 * Allocation of large amounts of memory may delay
1892 * chardev initialization for too long, and trigger timeouts
1893 * on software that waits for a monitor socket to be created
1894 * (e.g. libvirt).
1895 */
1896 if (g_str_has_prefix(type, "memory-backend-")) {
1897 return false;
1898 }
1899
1900 return true;
1901 }
1902
1903 static void qemu_apply_machine_options(QDict *qdict)
1904 {
1905 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1906
1907 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1908 /* fall back to the -kernel/-append */
1909 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1910 }
1911
1912 if (current_machine->smp.cpus > 1) {
1913 replay_add_blocker("smp");
1914 }
1915 }
1916
1917 static void qemu_create_early_backends(void)
1918 {
1919 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1920 #if defined(CONFIG_SDL)
1921 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1922 #else
1923 const bool use_sdl = false;
1924 #endif
1925 #if defined(CONFIG_GTK)
1926 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1927 #else
1928 const bool use_gtk = false;
1929 #endif
1930
1931 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1932 error_report("window-close is only valid for GTK and SDL, "
1933 "ignoring option");
1934 }
1935
1936 qemu_display_early_init(&dpy);
1937 qemu_console_early_init();
1938
1939 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1940 #if defined(CONFIG_OPENGL)
1941 error_report("OpenGL is not supported by the display");
1942 #else
1943 error_report("OpenGL support is disabled");
1944 #endif
1945 exit(1);
1946 }
1947
1948 object_option_foreach_add(object_create_early);
1949
1950 /* spice needs the timers to be initialized by this point */
1951 /* spice must initialize before audio as it changes the default audiodev */
1952 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1953 qemu_spice.init();
1954
1955 qemu_opts_foreach(qemu_find_opts("chardev"),
1956 chardev_init_func, NULL, &error_fatal);
1957
1958 #ifdef CONFIG_VIRTFS
1959 qemu_opts_foreach(qemu_find_opts("fsdev"),
1960 fsdev_init_func, NULL, &error_fatal);
1961 #endif
1962
1963 /*
1964 * Note: we need to create audio and block backends before
1965 * setting machine properties, so they can be referred to.
1966 */
1967 configure_blockdev(&bdo_queue, machine_class, snapshot);
1968 audio_init_audiodevs();
1969 if (default_audio) {
1970 audio_create_default_audiodevs();
1971 }
1972 }
1973
1974
1975 /*
1976 * The remainder of object creation happens after the
1977 * creation of chardev, fsdev, net clients and device data types.
1978 */
1979 static bool object_create_late(const char *type)
1980 {
1981 return !object_create_early(type) && !object_create_pre_sandbox(type);
1982 }
1983
1984 static void qemu_create_late_backends(void)
1985 {
1986 if (qtest_chrdev) {
1987 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
1988 }
1989
1990 net_init_clients();
1991
1992 object_option_foreach_add(object_create_late);
1993
1994 if (tpm_init() < 0) {
1995 exit(1);
1996 }
1997
1998 qemu_opts_foreach(qemu_find_opts("mon"),
1999 mon_init_func, NULL, &error_fatal);
2000
2001 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2002 exit(1);
2003 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2004 exit(1);
2005 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2006 exit(1);
2007
2008 /* now chardevs have been created we may have semihosting to connect */
2009 qemu_semihosting_chardev_init();
2010 }
2011
2012 static void qemu_resolve_machine_memdev(void)
2013 {
2014 if (ram_memdev_id) {
2015 Object *backend;
2016 ram_addr_t backend_size;
2017
2018 backend = object_resolve_path_type(ram_memdev_id,
2019 TYPE_MEMORY_BACKEND, NULL);
2020 if (!backend) {
2021 error_report("Memory backend '%s' not found", ram_memdev_id);
2022 exit(EXIT_FAILURE);
2023 }
2024 if (!have_custom_ram_size) {
2025 backend_size = object_property_get_uint(backend, "size", &error_abort);
2026 current_machine->ram_size = backend_size;
2027 }
2028 object_property_set_link(OBJECT(current_machine),
2029 "memory-backend", backend, &error_fatal);
2030 }
2031 }
2032
2033 static void parse_memory_options(void)
2034 {
2035 QemuOpts *opts = qemu_find_opts_singleton("memory");
2036 QDict *dict, *prop;
2037 const char *mem_str;
2038 Location loc;
2039
2040 loc_push_none(&loc);
2041 qemu_opts_loc_restore(opts);
2042
2043 prop = qdict_new();
2044
2045 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2046 /* Fix up legacy suffix-less format */
2047 mem_str = qemu_opt_get(opts, "size");
2048 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2049 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2050 qdict_put_str(prop, "size", mib_str);
2051 } else {
2052 qdict_put_str(prop, "size", mem_str);
2053 }
2054 }
2055
2056 if (qemu_opt_get(opts, "maxmem")) {
2057 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2058 }
2059 if (qemu_opt_get(opts, "slots")) {
2060 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2061 }
2062
2063 dict = qdict_new();
2064 qdict_put(dict, "memory", prop);
2065 keyval_merge(machine_opts_dict, dict, &error_fatal);
2066 qobject_unref(dict);
2067 loc_pop(&loc);
2068 }
2069
2070 static void qemu_create_machine(QDict *qdict)
2071 {
2072 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2073 object_set_machine_compat_props(machine_class->compat_props);
2074
2075 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2076 object_property_add_child(object_get_root(), "machine",
2077 OBJECT(current_machine));
2078 object_property_add_child(container_get(OBJECT(current_machine),
2079 "/unattached"),
2080 "sysbus", OBJECT(sysbus_get_default()));
2081
2082 if (machine_class->minimum_page_bits) {
2083 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2084 /* This would be a board error: specifying a minimum smaller than
2085 * a target's compile-time fixed setting.
2086 */
2087 g_assert_not_reached();
2088 }
2089 }
2090
2091 cpu_exec_init_all();
2092 page_size_init();
2093
2094 if (machine_class->hw_version) {
2095 qemu_set_hw_version(machine_class->hw_version);
2096 }
2097
2098 /*
2099 * Get the default machine options from the machine if it is not already
2100 * specified either by the configuration file or by the command line.
2101 */
2102 if (machine_class->default_machine_opts) {
2103 QDict *default_opts =
2104 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2105 &error_abort);
2106 qemu_apply_legacy_machine_options(default_opts);
2107 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2108 false, &error_abort);
2109 qobject_unref(default_opts);
2110 }
2111 }
2112
2113 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2114 {
2115 GlobalProperty *g;
2116
2117 g = g_malloc0(sizeof(*g));
2118 g->driver = qemu_opt_get(opts, "driver");
2119 g->property = qemu_opt_get(opts, "property");
2120 g->value = qemu_opt_get(opts, "value");
2121 qdev_prop_register_global(g);
2122 return 0;
2123 }
2124
2125 /*
2126 * Return whether configuration group @group is stored in QemuOpts, or
2127 * recorded as one or more QDicts by qemu_record_config_group.
2128 */
2129 static bool is_qemuopts_group(const char *group)
2130 {
2131 if (g_str_equal(group, "object") ||
2132 g_str_equal(group, "audiodev") ||
2133 g_str_equal(group, "machine") ||
2134 g_str_equal(group, "smp-opts") ||
2135 g_str_equal(group, "boot-opts")) {
2136 return false;
2137 }
2138 return true;
2139 }
2140
2141 static void qemu_record_config_group(const char *group, QDict *dict,
2142 bool from_json, Error **errp)
2143 {
2144 if (g_str_equal(group, "object")) {
2145 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2146 object_option_add_visitor(v);
2147 visit_free(v);
2148
2149 } else if (g_str_equal(group, "audiodev")) {
2150 Audiodev *dev = NULL;
2151 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2152 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2153 audio_define(dev);
2154 }
2155 visit_free(v);
2156
2157 } else if (g_str_equal(group, "machine")) {
2158 /*
2159 * Cannot merge string-valued and type-safe dictionaries, so JSON
2160 * is not accepted yet for -M.
2161 */
2162 assert(!from_json);
2163 keyval_merge(machine_opts_dict, dict, errp);
2164 } else if (g_str_equal(group, "smp-opts")) {
2165 machine_merge_property("smp", dict, &error_fatal);
2166 } else if (g_str_equal(group, "boot-opts")) {
2167 machine_merge_property("boot", dict, &error_fatal);
2168 } else {
2169 abort();
2170 }
2171 }
2172
2173 /*
2174 * Parse non-QemuOpts config file groups, pass the rest to
2175 * qemu_config_do_parse.
2176 */
2177 static void qemu_parse_config_group(const char *group, QDict *qdict,
2178 void *opaque, Error **errp)
2179 {
2180 QObject *crumpled;
2181 if (is_qemuopts_group(group)) {
2182 qemu_config_do_parse(group, qdict, opaque, errp);
2183 return;
2184 }
2185
2186 crumpled = qdict_crumple(qdict, errp);
2187 if (!crumpled) {
2188 return;
2189 }
2190 switch (qobject_type(crumpled)) {
2191 case QTYPE_QDICT:
2192 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2193 break;
2194 case QTYPE_QLIST:
2195 error_setg(errp, "Lists cannot be at top level of a configuration section");
2196 break;
2197 default:
2198 g_assert_not_reached();
2199 }
2200 qobject_unref(crumpled);
2201 }
2202
2203 static void qemu_read_default_config_file(Error **errp)
2204 {
2205 ERRP_GUARD();
2206 int ret;
2207 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2208
2209 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2210 if (ret < 0) {
2211 if (ret == -ENOENT) {
2212 error_free(*errp);
2213 *errp = NULL;
2214 }
2215 }
2216 }
2217
2218 static void qemu_set_option(const char *str, Error **errp)
2219 {
2220 char group[64], id[64], arg[64];
2221 QemuOptsList *list;
2222 QemuOpts *opts;
2223 int rc, offset;
2224
2225 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2226 if (rc < 3 || str[offset] != '=') {
2227 error_setg(errp, "can't parse: \"%s\"", str);
2228 return;
2229 }
2230
2231 if (!is_qemuopts_group(group)) {
2232 error_setg(errp, "-set is not supported with %s", group);
2233 } else {
2234 list = qemu_find_opts_err(group, errp);
2235 if (list) {
2236 opts = qemu_opts_find(list, id);
2237 if (!opts) {
2238 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2239 return;
2240 }
2241 qemu_opt_set(opts, arg, str + offset + 1, errp);
2242 }
2243 }
2244 }
2245
2246 static void user_register_global_props(void)
2247 {
2248 qemu_opts_foreach(qemu_find_opts("global"),
2249 global_init_func, NULL, NULL);
2250 }
2251
2252 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2253 {
2254 icount_configure(opts, errp);
2255 return 0;
2256 }
2257
2258 static int accelerator_set_property(void *opaque,
2259 const char *name, const char *value,
2260 Error **errp)
2261 {
2262 return object_parse_property_opt(opaque, name, value, "accel", errp);
2263 }
2264
2265 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2266 {
2267 bool *p_init_failed = opaque;
2268 const char *acc = qemu_opt_get(opts, "accel");
2269 AccelClass *ac = accel_find(acc);
2270 AccelState *accel;
2271 int ret;
2272 bool qtest_with_kvm;
2273
2274 if (!acc) {
2275 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2276 goto bad;
2277 }
2278
2279 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2280
2281 if (!ac) {
2282 if (!qtest_with_kvm) {
2283 error_report("invalid accelerator %s", acc);
2284 }
2285 goto bad;
2286 }
2287 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2288 object_apply_compat_props(OBJECT(accel));
2289 qemu_opt_foreach(opts, accelerator_set_property,
2290 accel,
2291 &error_fatal);
2292 /*
2293 * If legacy -singlestep option is set, honour it for TCG and
2294 * silently ignore for any other accelerator (which is how this
2295 * option has always behaved).
2296 */
2297 if (opt_one_insn_per_tb) {
2298 /*
2299 * This will always succeed for TCG, and we want to ignore
2300 * the error from trying to set a nonexistent property
2301 * on any other accelerator.
2302 */
2303 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL);
2304 }
2305 ret = accel_init_machine(accel, current_machine);
2306 if (ret < 0) {
2307 if (!qtest_with_kvm || ret != -ENOENT) {
2308 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2309 }
2310 goto bad;
2311 }
2312
2313 return 1;
2314
2315 bad:
2316 *p_init_failed = true;
2317 return 0;
2318 }
2319
2320 static void configure_accelerators(const char *progname)
2321 {
2322 bool init_failed = false;
2323
2324 qemu_opts_foreach(qemu_find_opts("icount"),
2325 do_configure_icount, NULL, &error_fatal);
2326
2327 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2328 char **accel_list, **tmp;
2329
2330 if (accelerators == NULL) {
2331 /* Select the default accelerator */
2332 bool have_tcg = accel_find("tcg");
2333 bool have_kvm = accel_find("kvm");
2334
2335 if (have_tcg && have_kvm) {
2336 if (g_str_has_suffix(progname, "kvm")) {
2337 /* If the program name ends with "kvm", we prefer KVM */
2338 accelerators = "kvm:tcg";
2339 } else {
2340 accelerators = "tcg:kvm";
2341 }
2342 } else if (have_kvm) {
2343 accelerators = "kvm";
2344 } else if (have_tcg) {
2345 accelerators = "tcg";
2346 } else {
2347 error_report("No accelerator selected and"
2348 " no default accelerator available");
2349 exit(1);
2350 }
2351 }
2352 accel_list = g_strsplit(accelerators, ":", 0);
2353
2354 for (tmp = accel_list; *tmp; tmp++) {
2355 /*
2356 * Filter invalid accelerators here, to prevent obscenities
2357 * such as "-machine accel=tcg,,thread=single".
2358 */
2359 if (accel_find(*tmp)) {
2360 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2361 } else {
2362 init_failed = true;
2363 error_report("invalid accelerator %s", *tmp);
2364 }
2365 }
2366 g_strfreev(accel_list);
2367 } else {
2368 if (accelerators != NULL) {
2369 error_report("The -accel and \"-machine accel=\" options are incompatible");
2370 exit(1);
2371 }
2372 }
2373
2374 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2375 do_configure_accelerator, &init_failed, &error_fatal)) {
2376 if (!init_failed) {
2377 error_report("no accelerator found");
2378 }
2379 exit(1);
2380 }
2381
2382 if (init_failed && !qtest_chrdev) {
2383 error_report("falling back to %s", current_accel_name());
2384 }
2385
2386 if (icount_enabled() && !tcg_enabled()) {
2387 error_report("-icount is not allowed with hardware virtualization");
2388 exit(1);
2389 }
2390 }
2391
2392 static void qemu_validate_options(const QDict *machine_opts)
2393 {
2394 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2395 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2396 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2397
2398 if (kernel_filename == NULL) {
2399 if (kernel_cmdline != NULL) {
2400 error_report("-append only allowed with -kernel option");
2401 exit(1);
2402 }
2403
2404 if (initrd_filename != NULL) {
2405 error_report("-initrd only allowed with -kernel option");
2406 exit(1);
2407 }
2408 }
2409
2410 if (loadvm && preconfig_requested) {
2411 error_report("'preconfig' and 'loadvm' options are "
2412 "mutually exclusive");
2413 exit(EXIT_FAILURE);
2414 }
2415 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2416 error_report("'preconfig' supports '-incoming defer' only");
2417 exit(EXIT_FAILURE);
2418 }
2419
2420 #ifdef CONFIG_CURSES
2421 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2422 error_report("curses display cannot be used with -daemonize");
2423 exit(1);
2424 }
2425 #endif
2426 }
2427
2428 static void qemu_process_sugar_options(void)
2429 {
2430 if (mem_prealloc) {
2431 QObject *smp = qdict_get(machine_opts_dict, "smp");
2432 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2433 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2434 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2435 const char *val = qstring_get_str(qobject_to(QString, cpus));
2436 object_register_sugar_prop("memory-backend", "prealloc-threads",
2437 val, false);
2438 }
2439 }
2440 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2441 }
2442 }
2443
2444 /* -action processing */
2445
2446 /*
2447 * Process all the -action parameters parsed from cmdline.
2448 */
2449 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2450 {
2451 Error *local_err = NULL;
2452 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2453 QObject *ret = NULL;
2454 qmp_marshal_set_action(qdict, &ret, &local_err);
2455 qobject_unref(ret);
2456 qobject_unref(qdict);
2457 if (local_err) {
2458 error_propagate(errp, local_err);
2459 return 1;
2460 }
2461 return 0;
2462 }
2463
2464 static void qemu_process_early_options(void)
2465 {
2466 qemu_opts_foreach(qemu_find_opts("name"),
2467 parse_name, NULL, &error_fatal);
2468
2469 object_option_foreach_add(object_create_pre_sandbox);
2470
2471 #ifdef CONFIG_SECCOMP
2472 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2473 if (olist) {
2474 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2475 }
2476 #endif
2477
2478 if (qemu_opts_foreach(qemu_find_opts("action"),
2479 process_runstate_actions, NULL, &error_fatal)) {
2480 exit(1);
2481 }
2482
2483 #ifndef _WIN32
2484 qemu_opts_foreach(qemu_find_opts("add-fd"),
2485 parse_add_fd, NULL, &error_fatal);
2486
2487 qemu_opts_foreach(qemu_find_opts("add-fd"),
2488 cleanup_add_fd, NULL, &error_fatal);
2489 #endif
2490
2491 /* Open the logfile at this point and set the log mask if necessary. */
2492 {
2493 int mask = 0;
2494 if (log_mask) {
2495 mask = qemu_str_to_log_mask(log_mask);
2496 if (!mask) {
2497 qemu_print_log_usage(stdout);
2498 exit(1);
2499 }
2500 }
2501 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2502 }
2503
2504 qemu_add_default_firmwarepath();
2505 }
2506
2507 static void qemu_process_help_options(void)
2508 {
2509 /*
2510 * Check for -cpu help and -device help before we call select_machine(),
2511 * which will return an error if the architecture has no default machine
2512 * type and the user did not specify one, so that the user doesn't need
2513 * to say '-cpu help -machine something'.
2514 */
2515 if (cpu_option && is_help_option(cpu_option)) {
2516 list_cpus();
2517 exit(0);
2518 }
2519
2520 if (qemu_opts_foreach(qemu_find_opts("device"),
2521 device_help_func, NULL, NULL)) {
2522 exit(0);
2523 }
2524
2525 /* -L help lists the data directories and exits. */
2526 if (list_data_dirs) {
2527 qemu_list_data_dirs();
2528 exit(0);
2529 }
2530 }
2531
2532 static void qemu_maybe_daemonize(const char *pid_file)
2533 {
2534 Error *err = NULL;
2535
2536 os_daemonize();
2537 rcu_disable_atfork();
2538
2539 if (pid_file) {
2540 char *pid_file_realpath = NULL;
2541
2542 if (!qemu_write_pidfile(pid_file, &err)) {
2543 error_reportf_err(err, "cannot create PID file: ");
2544 exit(1);
2545 }
2546
2547 pid_file_realpath = g_malloc0(PATH_MAX);
2548 if (!realpath(pid_file, pid_file_realpath)) {
2549 if (errno != ENOENT) {
2550 warn_report("not removing PID file on exit: cannot resolve PID "
2551 "file path: %s: %s", pid_file, strerror(errno));
2552 }
2553 return;
2554 }
2555
2556 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2557 .notifier = {
2558 .notify = qemu_unlink_pidfile,
2559 },
2560 .pid_file_realpath = pid_file_realpath,
2561 };
2562 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2563 }
2564 }
2565
2566 static void qemu_init_displays(void)
2567 {
2568 DisplayState *ds;
2569
2570 /* init local displays */
2571 ds = init_displaystate();
2572 qemu_display_init(ds, &dpy);
2573
2574 /* must be after terminal init, SDL library changes signal handlers */
2575 os_setup_signal_handling();
2576
2577 /* init remote displays */
2578 #ifdef CONFIG_VNC
2579 qemu_opts_foreach(qemu_find_opts("vnc"),
2580 vnc_init_func, NULL, &error_fatal);
2581 #endif
2582
2583 if (using_spice) {
2584 qemu_spice.display_init();
2585 }
2586 }
2587
2588 static void qemu_init_board(void)
2589 {
2590 /* process plugin before CPUs are created, but once -smp has been parsed */
2591 qemu_plugin_load_list(&plugin_list, &error_fatal);
2592
2593 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2594 machine_run_board_init(current_machine, mem_path, &error_fatal);
2595
2596 drive_check_orphaned();
2597
2598 realtime_init();
2599 }
2600
2601 static void qemu_create_cli_devices(void)
2602 {
2603 DeviceOption *opt;
2604
2605 soundhw_init();
2606
2607 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2608 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2609
2610 /* init USB devices */
2611 if (machine_usb(current_machine)) {
2612 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2613 exit(1);
2614 }
2615
2616 /* init generic devices */
2617 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2618 qemu_opts_foreach(qemu_find_opts("device"),
2619 device_init_func, NULL, &error_fatal);
2620 QTAILQ_FOREACH(opt, &device_opts, next) {
2621 DeviceState *dev;
2622 loc_push_restore(&opt->loc);
2623 /*
2624 * TODO Eventually we should call qmp_device_add() here to make sure it
2625 * behaves the same, but QMP still has to accept incorrectly typed
2626 * options until libvirt is fixed and we want to be strict on the CLI
2627 * from the start, so call qdev_device_add_from_qdict() directly for
2628 * now.
2629 */
2630 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2631 object_unref(OBJECT(dev));
2632 loc_pop(&opt->loc);
2633 }
2634 rom_reset_order_override();
2635 }
2636
2637 static void qemu_machine_creation_done(void)
2638 {
2639 MachineState *machine = MACHINE(qdev_get_machine());
2640
2641 /* Did we create any drives that we failed to create a device for? */
2642 drive_check_orphaned();
2643
2644 /* Don't warn about the default network setup that you get if
2645 * no command line -net or -netdev options are specified. There
2646 * are two cases that we would otherwise complain about:
2647 * (1) board doesn't support a NIC but the implicit "-net nic"
2648 * requested one
2649 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2650 * sets up a nic that isn't connected to anything.
2651 */
2652 if (!default_net && (!qtest_enabled() || has_defaults)) {
2653 net_check_clients();
2654 }
2655
2656 qdev_prop_check_globals();
2657
2658 qdev_machine_creation_done();
2659
2660 if (machine->cgs) {
2661 /*
2662 * Verify that Confidential Guest Support has actually been initialized
2663 */
2664 assert(machine->cgs->ready);
2665 }
2666
2667 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2668 exit(1);
2669 }
2670 if (!vga_interface_created && !default_vga &&
2671 vga_interface_type != VGA_NONE) {
2672 warn_report("A -vga option was passed but this machine "
2673 "type does not use that option; "
2674 "No VGA device has been created");
2675 }
2676 }
2677
2678 void qmp_x_exit_preconfig(Error **errp)
2679 {
2680 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2681 error_setg(errp, "The command is permitted only before machine initialization");
2682 return;
2683 }
2684
2685 qemu_init_board();
2686 qemu_create_cli_devices();
2687 qemu_machine_creation_done();
2688
2689 if (loadvm) {
2690 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2691 }
2692 if (replay_mode != REPLAY_MODE_NONE) {
2693 replay_vmstate_init();
2694 }
2695
2696 if (incoming) {
2697 Error *local_err = NULL;
2698 if (strcmp(incoming, "defer") != 0) {
2699 qmp_migrate_incoming(incoming, &local_err);
2700 if (local_err) {
2701 error_reportf_err(local_err, "-incoming %s: ", incoming);
2702 exit(1);
2703 }
2704 }
2705 } else if (autostart) {
2706 qmp_cont(NULL);
2707 }
2708 }
2709
2710 void qemu_init(int argc, char **argv)
2711 {
2712 QemuOpts *opts;
2713 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2714 QemuOptsList *olist;
2715 int optind;
2716 const char *optarg;
2717 MachineClass *machine_class;
2718 bool userconfig = true;
2719 FILE *vmstate_dump_file = NULL;
2720
2721 qemu_add_opts(&qemu_drive_opts);
2722 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2723 qemu_add_drive_opts(&qemu_common_drive_opts);
2724 qemu_add_drive_opts(&qemu_drive_opts);
2725 qemu_add_drive_opts(&bdrv_runtime_opts);
2726 qemu_add_opts(&qemu_chardev_opts);
2727 qemu_add_opts(&qemu_device_opts);
2728 qemu_add_opts(&qemu_netdev_opts);
2729 qemu_add_opts(&qemu_nic_opts);
2730 qemu_add_opts(&qemu_net_opts);
2731 qemu_add_opts(&qemu_rtc_opts);
2732 qemu_add_opts(&qemu_global_opts);
2733 qemu_add_opts(&qemu_mon_opts);
2734 qemu_add_opts(&qemu_trace_opts);
2735 qemu_plugin_add_opts();
2736 qemu_add_opts(&qemu_option_rom_opts);
2737 qemu_add_opts(&qemu_accel_opts);
2738 qemu_add_opts(&qemu_mem_opts);
2739 qemu_add_opts(&qemu_smp_opts);
2740 qemu_add_opts(&qemu_boot_opts);
2741 qemu_add_opts(&qemu_add_fd_opts);
2742 qemu_add_opts(&qemu_object_opts);
2743 qemu_add_opts(&qemu_tpmdev_opts);
2744 qemu_add_opts(&qemu_overcommit_opts);
2745 qemu_add_opts(&qemu_msg_opts);
2746 qemu_add_opts(&qemu_name_opts);
2747 qemu_add_opts(&qemu_numa_opts);
2748 qemu_add_opts(&qemu_icount_opts);
2749 qemu_add_opts(&qemu_semihosting_config_opts);
2750 qemu_add_opts(&qemu_fw_cfg_opts);
2751 qemu_add_opts(&qemu_action_opts);
2752 qemu_add_run_with_opts();
2753 module_call_init(MODULE_INIT_OPTS);
2754
2755 error_init(argv[0]);
2756 qemu_init_exec_dir(argv[0]);
2757
2758 qemu_init_arch_modules();
2759
2760 qemu_init_subsystems();
2761
2762 /* first pass of option parsing */
2763 optind = 1;
2764 while (optind < argc) {
2765 if (argv[optind][0] != '-') {
2766 /* disk image */
2767 optind++;
2768 } else {
2769 const QEMUOption *popt;
2770
2771 popt = lookup_opt(argc, argv, &optarg, &optind);
2772 switch (popt->index) {
2773 case QEMU_OPTION_nouserconfig:
2774 userconfig = false;
2775 break;
2776 }
2777 }
2778 }
2779
2780 machine_opts_dict = qdict_new();
2781 if (userconfig) {
2782 qemu_read_default_config_file(&error_fatal);
2783 }
2784
2785 /* second pass of option parsing */
2786 optind = 1;
2787 for(;;) {
2788 if (optind >= argc)
2789 break;
2790 if (argv[optind][0] != '-') {
2791 loc_set_cmdline(argv, optind, 1);
2792 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2793 } else {
2794 const QEMUOption *popt;
2795
2796 popt = lookup_opt(argc, argv, &optarg, &optind);
2797 if (!(popt->arch_mask & arch_type)) {
2798 error_report("Option not supported for this target");
2799 exit(1);
2800 }
2801 switch(popt->index) {
2802 case QEMU_OPTION_cpu:
2803 /* hw initialization will check this */
2804 cpu_option = optarg;
2805 break;
2806 case QEMU_OPTION_hda:
2807 case QEMU_OPTION_hdb:
2808 case QEMU_OPTION_hdc:
2809 case QEMU_OPTION_hdd:
2810 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2811 HD_OPTS);
2812 break;
2813 case QEMU_OPTION_blockdev:
2814 {
2815 Visitor *v;
2816 BlockdevOptionsQueueEntry *bdo;
2817
2818 v = qobject_input_visitor_new_str(optarg, "driver",
2819 &error_fatal);
2820
2821 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2822 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2823 &error_fatal);
2824 visit_free(v);
2825 loc_save(&bdo->loc);
2826 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2827 break;
2828 }
2829 case QEMU_OPTION_drive:
2830 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2831 optarg, false);
2832 if (opts == NULL) {
2833 exit(1);
2834 }
2835 break;
2836 case QEMU_OPTION_set:
2837 qemu_set_option(optarg, &error_fatal);
2838 break;
2839 case QEMU_OPTION_global:
2840 if (qemu_global_option(optarg) != 0)
2841 exit(1);
2842 break;
2843 case QEMU_OPTION_mtdblock:
2844 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2845 break;
2846 case QEMU_OPTION_sd:
2847 drive_add(IF_SD, -1, optarg, SD_OPTS);
2848 break;
2849 case QEMU_OPTION_pflash:
2850 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2851 break;
2852 case QEMU_OPTION_snapshot:
2853 snapshot = 1;
2854 replay_add_blocker("-snapshot");
2855 break;
2856 case QEMU_OPTION_numa:
2857 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2858 optarg, true);
2859 if (!opts) {
2860 exit(1);
2861 }
2862 break;
2863 case QEMU_OPTION_display:
2864 parse_display(optarg);
2865 break;
2866 case QEMU_OPTION_nographic:
2867 qdict_put_str(machine_opts_dict, "graphics", "off");
2868 nographic = true;
2869 dpy.type = DISPLAY_TYPE_NONE;
2870 break;
2871 case QEMU_OPTION_portrait:
2872 graphic_rotate = 90;
2873 break;
2874 case QEMU_OPTION_rotate:
2875 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2876 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2877 graphic_rotate != 180 && graphic_rotate != 270) {
2878 error_report("only 90, 180, 270 deg rotation is available");
2879 exit(1);
2880 }
2881 break;
2882 case QEMU_OPTION_kernel:
2883 qdict_put_str(machine_opts_dict, "kernel", optarg);
2884 break;
2885 case QEMU_OPTION_initrd:
2886 qdict_put_str(machine_opts_dict, "initrd", optarg);
2887 break;
2888 case QEMU_OPTION_append:
2889 qdict_put_str(machine_opts_dict, "append", optarg);
2890 break;
2891 case QEMU_OPTION_dtb:
2892 qdict_put_str(machine_opts_dict, "dtb", optarg);
2893 break;
2894 case QEMU_OPTION_cdrom:
2895 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2896 break;
2897 case QEMU_OPTION_boot:
2898 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2899 break;
2900 case QEMU_OPTION_fda:
2901 case QEMU_OPTION_fdb:
2902 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2903 optarg, FD_OPTS);
2904 break;
2905 case QEMU_OPTION_no_fd_bootchk:
2906 fd_bootchk = 0;
2907 break;
2908 case QEMU_OPTION_netdev:
2909 default_net = 0;
2910 if (netdev_is_modern(optarg)) {
2911 netdev_parse_modern(optarg);
2912 } else {
2913 net_client_parse(qemu_find_opts("netdev"), optarg);
2914 }
2915 break;
2916 case QEMU_OPTION_nic:
2917 default_net = 0;
2918 net_client_parse(qemu_find_opts("nic"), optarg);
2919 break;
2920 case QEMU_OPTION_net:
2921 default_net = 0;
2922 net_client_parse(qemu_find_opts("net"), optarg);
2923 break;
2924 #ifdef CONFIG_LIBISCSI
2925 case QEMU_OPTION_iscsi:
2926 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2927 optarg, false);
2928 if (!opts) {
2929 exit(1);
2930 }
2931 break;
2932 #endif
2933 case QEMU_OPTION_audiodev:
2934 default_audio = 0;
2935 audio_parse_option(optarg);
2936 break;
2937 case QEMU_OPTION_audio: {
2938 bool help;
2939 char *model = NULL;
2940 Audiodev *dev = NULL;
2941 Visitor *v;
2942 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2943 default_audio = 0;
2944 if (help || (qdict_haskey(dict, "driver") &&
2945 is_help_option(qdict_get_str(dict, "driver")))) {
2946 audio_help();
2947 exit(EXIT_SUCCESS);
2948 }
2949 if (!qdict_haskey(dict, "id")) {
2950 qdict_put_str(dict, "id", "audiodev0");
2951 }
2952 if (qdict_haskey(dict, "model")) {
2953 model = g_strdup(qdict_get_str(dict, "model"));
2954 qdict_del(dict, "model");
2955 if (is_help_option(model)) {
2956 show_valid_soundhw();
2957 exit(0);
2958 }
2959 }
2960 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2961 qobject_unref(dict);
2962 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2963 visit_free(v);
2964 if (model) {
2965 audio_define(dev);
2966 select_soundhw(model, dev->id);
2967 g_free(model);
2968 } else {
2969 audio_define_default(dev, &error_fatal);
2970 }
2971 break;
2972 }
2973 case QEMU_OPTION_h:
2974 help(0);
2975 break;
2976 case QEMU_OPTION_version:
2977 version();
2978 exit(0);
2979 break;
2980 case QEMU_OPTION_m:
2981 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
2982 if (opts == NULL) {
2983 exit(1);
2984 }
2985 break;
2986 #ifdef CONFIG_TPM
2987 case QEMU_OPTION_tpmdev:
2988 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
2989 exit(1);
2990 }
2991 break;
2992 #endif
2993 case QEMU_OPTION_mempath:
2994 mem_path = optarg;
2995 break;
2996 case QEMU_OPTION_mem_prealloc:
2997 mem_prealloc = 1;
2998 break;
2999 case QEMU_OPTION_d:
3000 log_mask = optarg;
3001 break;
3002 case QEMU_OPTION_D:
3003 log_file = optarg;
3004 break;
3005 case QEMU_OPTION_DFILTER:
3006 qemu_set_dfilter_ranges(optarg, &error_fatal);
3007 break;
3008 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3009 case QEMU_OPTION_perfmap:
3010 perf_enable_perfmap();
3011 break;
3012 case QEMU_OPTION_jitdump:
3013 perf_enable_jitdump();
3014 break;
3015 #endif
3016 case QEMU_OPTION_seed:
3017 qemu_guest_random_seed_main(optarg, &error_fatal);
3018 break;
3019 case QEMU_OPTION_s:
3020 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3021 break;
3022 case QEMU_OPTION_gdb:
3023 add_device_config(DEV_GDB, optarg);
3024 break;
3025 case QEMU_OPTION_L:
3026 if (is_help_option(optarg)) {
3027 list_data_dirs = true;
3028 } else {
3029 qemu_add_data_dir(g_strdup(optarg));
3030 }
3031 break;
3032 case QEMU_OPTION_bios:
3033 qdict_put_str(machine_opts_dict, "firmware", optarg);
3034 break;
3035 case QEMU_OPTION_singlestep:
3036 opt_one_insn_per_tb = true;
3037 break;
3038 case QEMU_OPTION_S:
3039 autostart = 0;
3040 break;
3041 case QEMU_OPTION_k:
3042 keyboard_layout = optarg;
3043 break;
3044 case QEMU_OPTION_vga:
3045 vga_model = optarg;
3046 default_vga = 0;
3047 break;
3048 case QEMU_OPTION_g:
3049 {
3050 const char *p;
3051 int w, h, depth;
3052 p = optarg;
3053 w = strtol(p, (char **)&p, 10);
3054 if (w <= 0) {
3055 graphic_error:
3056 error_report("invalid resolution or depth");
3057 exit(1);
3058 }
3059 if (*p != 'x')
3060 goto graphic_error;
3061 p++;
3062 h = strtol(p, (char **)&p, 10);
3063 if (h <= 0)
3064 goto graphic_error;
3065 if (*p == 'x') {
3066 p++;
3067 depth = strtol(p, (char **)&p, 10);
3068 if (depth != 1 && depth != 2 && depth != 4 &&
3069 depth != 8 && depth != 15 && depth != 16 &&
3070 depth != 24 && depth != 32)
3071 goto graphic_error;
3072 } else if (*p == '\0') {
3073 depth = graphic_depth;
3074 } else {
3075 goto graphic_error;
3076 }
3077
3078 graphic_width = w;
3079 graphic_height = h;
3080 graphic_depth = depth;
3081 }
3082 break;
3083 case QEMU_OPTION_echr:
3084 {
3085 char *r;
3086 term_escape_char = strtol(optarg, &r, 0);
3087 if (r == optarg)
3088 printf("Bad argument to echr\n");
3089 break;
3090 }
3091 case QEMU_OPTION_monitor:
3092 default_monitor = 0;
3093 if (strncmp(optarg, "none", 4)) {
3094 monitor_parse(optarg, "readline", false);
3095 }
3096 break;
3097 case QEMU_OPTION_qmp:
3098 monitor_parse(optarg, "control", false);
3099 default_monitor = 0;
3100 break;
3101 case QEMU_OPTION_qmp_pretty:
3102 monitor_parse(optarg, "control", true);
3103 default_monitor = 0;
3104 break;
3105 case QEMU_OPTION_mon:
3106 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3107 true);
3108 if (!opts) {
3109 exit(1);
3110 }
3111 default_monitor = 0;
3112 break;
3113 case QEMU_OPTION_chardev:
3114 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3115 optarg, true);
3116 if (!opts) {
3117 exit(1);
3118 }
3119 break;
3120 case QEMU_OPTION_fsdev:
3121 olist = qemu_find_opts("fsdev");
3122 if (!olist) {
3123 error_report("fsdev support is disabled");
3124 exit(1);
3125 }
3126 opts = qemu_opts_parse_noisily(olist, optarg, true);
3127 if (!opts) {
3128 exit(1);
3129 }
3130 break;
3131 case QEMU_OPTION_virtfs: {
3132 QemuOpts *fsdev;
3133 QemuOpts *device;
3134 const char *writeout, *sock_fd, *socket, *path, *security_model,
3135 *multidevs;
3136
3137 olist = qemu_find_opts("virtfs");
3138 if (!olist) {
3139 error_report("virtfs support is disabled");
3140 exit(1);
3141 }
3142 opts = qemu_opts_parse_noisily(olist, optarg, true);
3143 if (!opts) {
3144 exit(1);
3145 }
3146
3147 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3148 qemu_opt_get(opts, "mount_tag") == NULL) {
3149 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3150 exit(1);
3151 }
3152 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3153 qemu_opts_id(opts) ?:
3154 qemu_opt_get(opts, "mount_tag"),
3155 1, NULL);
3156 if (!fsdev) {
3157 error_report("duplicate or invalid fsdev id: %s",
3158 qemu_opt_get(opts, "mount_tag"));
3159 exit(1);
3160 }
3161
3162 writeout = qemu_opt_get(opts, "writeout");
3163 if (writeout) {
3164 #ifdef CONFIG_SYNC_FILE_RANGE
3165 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3166 #else
3167 error_report("writeout=immediate not supported "
3168 "on this platform");
3169 exit(1);
3170 #endif
3171 }
3172 qemu_opt_set(fsdev, "fsdriver",
3173 qemu_opt_get(opts, "fsdriver"), &error_abort);
3174 path = qemu_opt_get(opts, "path");
3175 if (path) {
3176 qemu_opt_set(fsdev, "path", path, &error_abort);
3177 }
3178 security_model = qemu_opt_get(opts, "security_model");
3179 if (security_model) {
3180 qemu_opt_set(fsdev, "security_model", security_model,
3181 &error_abort);
3182 }
3183 socket = qemu_opt_get(opts, "socket");
3184 if (socket) {
3185 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3186 }
3187 sock_fd = qemu_opt_get(opts, "sock_fd");
3188 if (sock_fd) {
3189 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3190 }
3191
3192 qemu_opt_set_bool(fsdev, "readonly",
3193 qemu_opt_get_bool(opts, "readonly", 0),
3194 &error_abort);
3195 multidevs = qemu_opt_get(opts, "multidevs");
3196 if (multidevs) {
3197 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3198 }
3199 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3200 &error_abort);
3201 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3202 qemu_opt_set(device, "fsdev",
3203 qemu_opts_id(fsdev), &error_abort);
3204 qemu_opt_set(device, "mount_tag",
3205 qemu_opt_get(opts, "mount_tag"), &error_abort);
3206 break;
3207 }
3208 case QEMU_OPTION_serial:
3209 add_device_config(DEV_SERIAL, optarg);
3210 default_serial = 0;
3211 if (strncmp(optarg, "mon:", 4) == 0) {
3212 default_monitor = 0;
3213 }
3214 break;
3215 case QEMU_OPTION_action:
3216 olist = qemu_find_opts("action");
3217 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3218 exit(1);
3219 }
3220 break;
3221 case QEMU_OPTION_watchdog_action: {
3222 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3223 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3224 break;
3225 }
3226 case QEMU_OPTION_parallel:
3227 add_device_config(DEV_PARALLEL, optarg);
3228 default_parallel = 0;
3229 if (strncmp(optarg, "mon:", 4) == 0) {
3230 default_monitor = 0;
3231 }
3232 break;
3233 case QEMU_OPTION_debugcon:
3234 add_device_config(DEV_DEBUGCON, optarg);
3235 break;
3236 case QEMU_OPTION_loadvm:
3237 loadvm = optarg;
3238 break;
3239 case QEMU_OPTION_full_screen:
3240 dpy.has_full_screen = true;
3241 dpy.full_screen = true;
3242 break;
3243 case QEMU_OPTION_pidfile:
3244 pid_file = optarg;
3245 break;
3246 case QEMU_OPTION_win2k_hack:
3247 win2k_install_hack = 1;
3248 break;
3249 case QEMU_OPTION_acpitable:
3250 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3251 optarg, true);
3252 if (!opts) {
3253 exit(1);
3254 }
3255 acpi_table_add(opts, &error_fatal);
3256 break;
3257 case QEMU_OPTION_smbios:
3258 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3259 optarg, false);
3260 if (!opts) {
3261 exit(1);
3262 }
3263 smbios_entry_add(opts, &error_fatal);
3264 break;
3265 case QEMU_OPTION_fwcfg:
3266 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3267 optarg, true);
3268 if (opts == NULL) {
3269 exit(1);
3270 }
3271 break;
3272 case QEMU_OPTION_preconfig:
3273 preconfig_requested = true;
3274 break;
3275 case QEMU_OPTION_enable_kvm:
3276 qdict_put_str(machine_opts_dict, "accel", "kvm");
3277 break;
3278 case QEMU_OPTION_M:
3279 case QEMU_OPTION_machine:
3280 {
3281 bool help;
3282
3283 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3284 if (help) {
3285 machine_help_func(machine_opts_dict);
3286 exit(EXIT_SUCCESS);
3287 }
3288 break;
3289 }
3290 case QEMU_OPTION_accel:
3291 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3292 optarg, true);
3293 optarg = qemu_opt_get(accel_opts, "accel");
3294 if (!optarg || is_help_option(optarg)) {
3295 printf("Accelerators supported in QEMU binary:\n");
3296 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3297 false);
3298 for (el = accel_list; el; el = el->next) {
3299 gchar *typename = g_strdup(object_class_get_name(
3300 OBJECT_CLASS(el->data)));
3301 /* omit qtest which is used for tests only */
3302 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3303 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3304 gchar **optname = g_strsplit(typename,
3305 ACCEL_CLASS_SUFFIX, 0);
3306 printf("%s\n", optname[0]);
3307 g_strfreev(optname);
3308 }
3309 g_free(typename);
3310 }
3311 g_slist_free(accel_list);
3312 exit(0);
3313 }
3314 break;
3315 case QEMU_OPTION_usb:
3316 qdict_put_str(machine_opts_dict, "usb", "on");
3317 break;
3318 case QEMU_OPTION_usbdevice:
3319 qdict_put_str(machine_opts_dict, "usb", "on");
3320 add_device_config(DEV_USB, optarg);
3321 break;
3322 case QEMU_OPTION_device:
3323 if (optarg[0] == '{') {
3324 QObject *obj = qobject_from_json(optarg, &error_fatal);
3325 DeviceOption *opt = g_new0(DeviceOption, 1);
3326 opt->opts = qobject_to(QDict, obj);
3327 loc_save(&opt->loc);
3328 assert(opt->opts != NULL);
3329 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3330 } else {
3331 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3332 optarg, true)) {
3333 exit(1);
3334 }
3335 }
3336 break;
3337 case QEMU_OPTION_smp:
3338 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3339 "smp", optarg);
3340 break;
3341 case QEMU_OPTION_vnc:
3342 vnc_parse(optarg);
3343 break;
3344 case QEMU_OPTION_no_acpi:
3345 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3346 qdict_put_str(machine_opts_dict, "acpi", "off");
3347 break;
3348 case QEMU_OPTION_no_hpet:
3349 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3350 qdict_put_str(machine_opts_dict, "hpet", "off");
3351 break;
3352 case QEMU_OPTION_no_reboot:
3353 olist = qemu_find_opts("action");
3354 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3355 break;
3356 case QEMU_OPTION_no_shutdown:
3357 olist = qemu_find_opts("action");
3358 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3359 break;
3360 case QEMU_OPTION_uuid:
3361 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3362 error_report("failed to parse UUID string: wrong format");
3363 exit(1);
3364 }
3365 qemu_uuid_set = true;
3366 break;
3367 case QEMU_OPTION_option_rom:
3368 if (nb_option_roms >= MAX_OPTION_ROMS) {
3369 error_report("too many option ROMs");
3370 exit(1);
3371 }
3372 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3373 optarg, true);
3374 if (!opts) {
3375 exit(1);
3376 }
3377 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3378 option_rom[nb_option_roms].bootindex =
3379 qemu_opt_get_number(opts, "bootindex", -1);
3380 if (!option_rom[nb_option_roms].name) {
3381 error_report("Option ROM file is not specified");
3382 exit(1);
3383 }
3384 nb_option_roms++;
3385 break;
3386 case QEMU_OPTION_semihosting:
3387 qemu_semihosting_enable();
3388 break;
3389 case QEMU_OPTION_semihosting_config:
3390 if (qemu_semihosting_config_options(optarg) != 0) {
3391 exit(1);
3392 }
3393 break;
3394 case QEMU_OPTION_name:
3395 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3396 optarg, true);
3397 if (!opts) {
3398 exit(1);
3399 }
3400 /* Capture guest name if -msg guest-name is used later */
3401 error_guest_name = qemu_opt_get(opts, "guest");
3402 break;
3403 case QEMU_OPTION_prom_env:
3404 if (nb_prom_envs >= MAX_PROM_ENVS) {
3405 error_report("too many prom variables");
3406 exit(1);
3407 }
3408 prom_envs[nb_prom_envs] = optarg;
3409 nb_prom_envs++;
3410 break;
3411 case QEMU_OPTION_old_param:
3412 old_param = 1;
3413 break;
3414 case QEMU_OPTION_rtc:
3415 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3416 false);
3417 if (!opts) {
3418 exit(1);
3419 }
3420 break;
3421 case QEMU_OPTION_icount:
3422 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3423 optarg, true);
3424 if (!icount_opts) {
3425 exit(1);
3426 }
3427 break;
3428 case QEMU_OPTION_incoming:
3429 if (!incoming) {
3430 runstate_set(RUN_STATE_INMIGRATE);
3431 }
3432 incoming = optarg;
3433 break;
3434 case QEMU_OPTION_only_migratable:
3435 only_migratable = 1;
3436 break;
3437 case QEMU_OPTION_nodefaults:
3438 has_defaults = 0;
3439 break;
3440 case QEMU_OPTION_xen_domid:
3441 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3442 error_report("Option not supported for this target");
3443 exit(1);
3444 }
3445 xen_domid = atoi(optarg);
3446 break;
3447 case QEMU_OPTION_xen_attach:
3448 if (!(accel_find("xen"))) {
3449 error_report("Option not supported for this target");
3450 exit(1);
3451 }
3452 xen_mode = XEN_ATTACH;
3453 break;
3454 case QEMU_OPTION_xen_domid_restrict:
3455 if (!(accel_find("xen"))) {
3456 error_report("Option not supported for this target");
3457 exit(1);
3458 }
3459 xen_domid_restrict = true;
3460 break;
3461 case QEMU_OPTION_trace:
3462 trace_opt_parse(optarg);
3463 break;
3464 case QEMU_OPTION_plugin:
3465 qemu_plugin_opt_parse(optarg, &plugin_list);
3466 break;
3467 case QEMU_OPTION_readconfig:
3468 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3469 break;
3470 #ifdef CONFIG_SPICE
3471 case QEMU_OPTION_spice:
3472 olist = qemu_find_opts_err("spice", NULL);
3473 if (!olist) {
3474 error_report("spice support is disabled");
3475 exit(1);
3476 }
3477 opts = qemu_opts_parse_noisily(olist, optarg, false);
3478 if (!opts) {
3479 exit(1);
3480 }
3481 display_remote++;
3482 break;
3483 #endif
3484 case QEMU_OPTION_qtest:
3485 qtest_chrdev = optarg;
3486 break;
3487 case QEMU_OPTION_qtest_log:
3488 qtest_log = optarg;
3489 break;
3490 case QEMU_OPTION_sandbox:
3491 olist = qemu_find_opts("sandbox");
3492 if (!olist) {
3493 #ifndef CONFIG_SECCOMP
3494 error_report("-sandbox support is not enabled "
3495 "in this QEMU binary");
3496 #endif
3497 exit(1);
3498 }
3499
3500 opts = qemu_opts_parse_noisily(olist, optarg, true);
3501 if (!opts) {
3502 exit(1);
3503 }
3504 break;
3505 case QEMU_OPTION_add_fd:
3506 #ifndef _WIN32
3507 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3508 optarg, false);
3509 if (!opts) {
3510 exit(1);
3511 }
3512 #else
3513 error_report("File descriptor passing is disabled on this "
3514 "platform");
3515 exit(1);
3516 #endif
3517 break;
3518 case QEMU_OPTION_object:
3519 object_option_parse(optarg);
3520 break;
3521 case QEMU_OPTION_overcommit:
3522 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3523 optarg, false);
3524 if (!opts) {
3525 exit(1);
3526 }
3527 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3528 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3529 break;
3530 case QEMU_OPTION_compat:
3531 {
3532 CompatPolicy *opts_policy;
3533 Visitor *v;
3534
3535 v = qobject_input_visitor_new_str(optarg, NULL,
3536 &error_fatal);
3537
3538 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3539 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3540
3541 qapi_free_CompatPolicy(opts_policy);
3542 visit_free(v);
3543 break;
3544 }
3545 case QEMU_OPTION_msg:
3546 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3547 false);
3548 if (!opts) {
3549 exit(1);
3550 }
3551 configure_msg(opts);
3552 break;
3553 case QEMU_OPTION_dump_vmstate:
3554 if (vmstate_dump_file) {
3555 error_report("only one '-dump-vmstate' "
3556 "option may be given");
3557 exit(1);
3558 }
3559 vmstate_dump_file = fopen(optarg, "w");
3560 if (vmstate_dump_file == NULL) {
3561 error_report("open %s: %s", optarg, strerror(errno));
3562 exit(1);
3563 }
3564 break;
3565 case QEMU_OPTION_enable_sync_profile:
3566 qsp_enable();
3567 break;
3568 case QEMU_OPTION_nouserconfig:
3569 /* Nothing to be parsed here. Especially, do not error out below. */
3570 break;
3571 #if defined(CONFIG_POSIX)
3572 case QEMU_OPTION_runas:
3573 if (!os_set_runas(optarg)) {
3574 error_report("User \"%s\" doesn't exist"
3575 " (and is not <uid>:<gid>)",
3576 optarg);
3577 exit(1);
3578 }
3579 break;
3580 case QEMU_OPTION_chroot:
3581 warn_report("option is deprecated,"
3582 " use '-run-with chroot=...' instead");
3583 os_set_chroot(optarg);
3584 break;
3585 case QEMU_OPTION_daemonize:
3586 os_set_daemonize(true);
3587 break;
3588 #if defined(CONFIG_LINUX)
3589 /* deprecated */
3590 case QEMU_OPTION_asyncteardown:
3591 init_async_teardown();
3592 break;
3593 #endif
3594 case QEMU_OPTION_run_with: {
3595 const char *str;
3596 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3597 optarg, false);
3598 if (!opts) {
3599 exit(1);
3600 }
3601 #if defined(CONFIG_LINUX)
3602 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3603 init_async_teardown();
3604 }
3605 #endif
3606 str = qemu_opt_get(opts, "chroot");
3607 if (str) {
3608 os_set_chroot(str);
3609 }
3610 break;
3611 }
3612 #endif /* CONFIG_POSIX */
3613
3614 default:
3615 error_report("Option not supported in this build");
3616 exit(1);
3617 }
3618 }
3619 }
3620 /*
3621 * Clear error location left behind by the loop.
3622 * Best done right after the loop. Do not insert code here!
3623 */
3624 loc_set_none();
3625
3626 qemu_validate_options(machine_opts_dict);
3627 qemu_process_sugar_options();
3628
3629 /*
3630 * These options affect everything else and should be processed
3631 * before daemonizing.
3632 */
3633 qemu_process_early_options();
3634
3635 qemu_process_help_options();
3636 qemu_maybe_daemonize(pid_file);
3637
3638 /*
3639 * The trace backend must be initialized after daemonizing.
3640 * trace_init_backends() will call st_init(), which will create the
3641 * trace thread in the parent, and also register st_flush_trace_buffer()
3642 * in atexit(). This function will force the parent to wait for the
3643 * writeout thread to finish, which will not occur, and the parent
3644 * process will be left in the host.
3645 */
3646 if (!trace_init_backends()) {
3647 exit(1);
3648 }
3649 trace_init_file();
3650
3651 qemu_init_main_loop(&error_fatal);
3652 cpu_timers_init();
3653
3654 user_register_global_props();
3655 replay_configure(icount_opts);
3656
3657 configure_rtc(qemu_find_opts_singleton("rtc"));
3658
3659 /* Transfer QemuOpts options into machine options */
3660 parse_memory_options();
3661
3662 qemu_create_machine(machine_opts_dict);
3663
3664 suspend_mux_open();
3665
3666 qemu_disable_default_devices();
3667 qemu_create_default_devices();
3668 qemu_create_early_backends();
3669
3670 qemu_apply_legacy_machine_options(machine_opts_dict);
3671 qemu_apply_machine_options(machine_opts_dict);
3672 qobject_unref(machine_opts_dict);
3673 phase_advance(PHASE_MACHINE_CREATED);
3674
3675 /*
3676 * Note: uses machine properties such as kernel-irqchip, must run
3677 * after qemu_apply_machine_options.
3678 */
3679 configure_accelerators(argv[0]);
3680 phase_advance(PHASE_ACCEL_CREATED);
3681
3682 /*
3683 * Beware, QOM objects created before this point miss global and
3684 * compat properties.
3685 *
3686 * Global properties get set up by qdev_prop_register_global(),
3687 * called from user_register_global_props(), and certain option
3688 * desugaring. Also in CPU feature desugaring (buried in
3689 * parse_cpu_option()), which happens below this point, but may
3690 * only target the CPU type, which can only be created after
3691 * parse_cpu_option() returned the type.
3692 *
3693 * Machine compat properties: object_set_machine_compat_props().
3694 * Accelerator compat props: object_set_accelerator_compat_props(),
3695 * called from do_configure_accelerator().
3696 */
3697
3698 machine_class = MACHINE_GET_CLASS(current_machine);
3699 if (!qtest_enabled() && machine_class->deprecation_reason) {
3700 warn_report("Machine type '%s' is deprecated: %s",
3701 machine_class->name, machine_class->deprecation_reason);
3702 }
3703
3704 /*
3705 * Create backends before creating migration objects, so that it can
3706 * check against compatibilities on the backend memories (e.g. postcopy
3707 * over memory-backend-file objects).
3708 */
3709 qemu_create_late_backends();
3710
3711 /*
3712 * Note: creates a QOM object, must run only after global and
3713 * compat properties have been set up.
3714 */
3715 migration_object_init();
3716
3717 /* parse features once if machine provides default cpu_type */
3718 current_machine->cpu_type = machine_class->default_cpu_type;
3719 if (cpu_option) {
3720 current_machine->cpu_type = parse_cpu_option(cpu_option);
3721 }
3722 /* NB: for machine none cpu_type could STILL be NULL here! */
3723
3724 qemu_resolve_machine_memdev();
3725 parse_numa_opts(current_machine);
3726
3727 if (vmstate_dump_file) {
3728 /* dump and exit */
3729 module_load_qom_all();
3730 dump_vmstate_json_to_file(vmstate_dump_file);
3731 exit(0);
3732 }
3733
3734 if (!preconfig_requested) {
3735 qmp_x_exit_preconfig(&error_fatal);
3736 }
3737 qemu_init_displays();
3738 accel_setup_post(current_machine);
3739 os_setup_post();
3740 resume_mux_open();
3741 }
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