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hw/xen/xen_pt: Resolve igd_passthrough_isa_bridge_create() indirection
[qemu.git] / softmmu / vl.c
blob488cc4d09e1fe7467d860bf566e53d4944afc039
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 "hw/usb.h"
53 #include "hw/isa/isa.h"
54 #include "hw/scsi/scsi.h"
55 #include "hw/display/vga.h"
56 #include "sysemu/watchdog.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 "sysemu/hax.h"
91 #include "qapi/qobject-input-visitor.h"
92 #include "qemu/option.h"
93 #include "qemu/config-file.h"
94 #include "qemu/qemu-options.h"
95 #include "qemu/main-loop.h"
96 #ifdef CONFIG_VIRTFS
97 #include "fsdev/qemu-fsdev.h"
98 #endif
99 #include "sysemu/qtest.h"
100
101 #include "disas/disas.h"
102
103 #include "trace.h"
104 #include "trace/control.h"
105 #include "qemu/plugin.h"
106 #include "qemu/queue.h"
107 #include "sysemu/arch_init.h"
108 #include "exec/confidential-guest-support.h"
109
110 #include "ui/qemu-spice.h"
111 #include "qapi/string-input-visitor.h"
112 #include "qapi/opts-visitor.h"
113 #include "qapi/clone-visitor.h"
114 #include "qom/object_interfaces.h"
115 #include "semihosting/semihost.h"
116 #include "crypto/init.h"
117 #include "sysemu/replay.h"
118 #include "qapi/qapi-events-run-state.h"
119 #include "qapi/qapi-visit-block-core.h"
120 #include "qapi/qapi-visit-compat.h"
121 #include "qapi/qapi-visit-ui.h"
122 #include "qapi/qapi-commands-block-core.h"
123 #include "qapi/qapi-commands-migration.h"
124 #include "qapi/qapi-commands-misc.h"
125 #include "qapi/qapi-visit-qom.h"
126 #include "qapi/qapi-commands-ui.h"
127 #include "qapi/qmp/qdict.h"
128 #include "block/qdict.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
132 #include "qemu/keyval.h"
133
134 #include "config-host.h"
135
136 #define MAX_VIRTIO_CONSOLES 1
137
138 typedef struct BlockdevOptionsQueueEntry {
139 BlockdevOptions *bdo;
140 Location loc;
141 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
142 } BlockdevOptionsQueueEntry;
143
144 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
145
146 typedef struct ObjectOption {
147 ObjectOptions *opts;
148 QTAILQ_ENTRY(ObjectOption) next;
149 } ObjectOption;
150
151 typedef struct DeviceOption {
152 QDict *opts;
153 Location loc;
154 QTAILQ_ENTRY(DeviceOption) next;
155 } DeviceOption;
156
157 static const char *cpu_option;
158 static const char *mem_path;
159 static const char *incoming;
160 static const char *loadvm;
161 static const char *accelerators;
162 static QDict *machine_opts_dict;
163 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
164 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
165 static ram_addr_t maxram_size;
166 static uint64_t ram_slots;
167 static int display_remote;
168 static int snapshot;
169 static bool preconfig_requested;
170 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
171 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
172 static bool nographic = false;
173 static int mem_prealloc; /* force preallocation of physical target memory */
174 static ram_addr_t ram_size;
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 *watchdog;
183 static const char *qtest_chrdev;
184 static const char *qtest_log;
185
186 static int has_defaults = 1;
187 static int default_serial = 1;
188 static int default_parallel = 1;
189 static int default_monitor = 1;
190 static int default_floppy = 1;
191 static int default_cdrom = 1;
192 static int default_sdcard = 1;
193 static int default_vga = 1;
194 static int default_net = 1;
195
196 static struct {
197 const char *driver;
198 int *flag;
199 } default_list[] = {
200 { .driver = "isa-serial", .flag = &default_serial },
201 { .driver = "isa-parallel", .flag = &default_parallel },
202 { .driver = "isa-fdc", .flag = &default_floppy },
203 { .driver = "floppy", .flag = &default_floppy },
204 { .driver = "ide-cd", .flag = &default_cdrom },
205 { .driver = "ide-hd", .flag = &default_cdrom },
206 { .driver = "scsi-cd", .flag = &default_cdrom },
207 { .driver = "scsi-hd", .flag = &default_cdrom },
208 { .driver = "VGA", .flag = &default_vga },
209 { .driver = "isa-vga", .flag = &default_vga },
210 { .driver = "cirrus-vga", .flag = &default_vga },
211 { .driver = "isa-cirrus-vga", .flag = &default_vga },
212 { .driver = "vmware-svga", .flag = &default_vga },
213 { .driver = "qxl-vga", .flag = &default_vga },
214 { .driver = "virtio-vga", .flag = &default_vga },
215 { .driver = "ati-vga", .flag = &default_vga },
216 { .driver = "vhost-user-vga", .flag = &default_vga },
217 { .driver = "virtio-vga-gl", .flag = &default_vga },
218 };
219
220 static QemuOptsList qemu_rtc_opts = {
221 .name = "rtc",
222 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
223 .merge_lists = true,
224 .desc = {
225 {
226 .name = "base",
227 .type = QEMU_OPT_STRING,
228 },{
229 .name = "clock",
230 .type = QEMU_OPT_STRING,
231 },{
232 .name = "driftfix",
233 .type = QEMU_OPT_STRING,
234 },
235 { /* end of list */ }
236 },
237 };
238
239 static QemuOptsList qemu_option_rom_opts = {
240 .name = "option-rom",
241 .implied_opt_name = "romfile",
242 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
243 .desc = {
244 {
245 .name = "bootindex",
246 .type = QEMU_OPT_NUMBER,
247 }, {
248 .name = "romfile",
249 .type = QEMU_OPT_STRING,
250 },
251 { /* end of list */ }
252 },
253 };
254
255 static QemuOptsList qemu_accel_opts = {
256 .name = "accel",
257 .implied_opt_name = "accel",
258 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
259 .desc = {
260 /*
261 * no elements => accept any
262 * sanity checking will happen later
263 * when setting accelerator properties
264 */
265 { }
266 },
267 };
268
269 static QemuOptsList qemu_boot_opts = {
270 .name = "boot-opts",
271 .implied_opt_name = "order",
272 .merge_lists = true,
273 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
274 .desc = {
275 {
276 .name = "order",
277 .type = QEMU_OPT_STRING,
278 }, {
279 .name = "once",
280 .type = QEMU_OPT_STRING,
281 }, {
282 .name = "menu",
283 .type = QEMU_OPT_BOOL,
284 }, {
285 .name = "splash",
286 .type = QEMU_OPT_STRING,
287 }, {
288 .name = "splash-time",
289 .type = QEMU_OPT_NUMBER,
290 }, {
291 .name = "reboot-timeout",
292 .type = QEMU_OPT_NUMBER,
293 }, {
294 .name = "strict",
295 .type = QEMU_OPT_BOOL,
296 },
297 { /*End of list */ }
298 },
299 };
300
301 static QemuOptsList qemu_add_fd_opts = {
302 .name = "add-fd",
303 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
304 .desc = {
305 {
306 .name = "fd",
307 .type = QEMU_OPT_NUMBER,
308 .help = "file descriptor of which a duplicate is added to fd set",
309 },{
310 .name = "set",
311 .type = QEMU_OPT_NUMBER,
312 .help = "ID of the fd set to add fd to",
313 },{
314 .name = "opaque",
315 .type = QEMU_OPT_STRING,
316 .help = "free-form string used to describe fd",
317 },
318 { /* end of list */ }
319 },
320 };
321
322 static QemuOptsList qemu_object_opts = {
323 .name = "object",
324 .implied_opt_name = "qom-type",
325 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
326 .desc = {
327 { }
328 },
329 };
330
331 static QemuOptsList qemu_tpmdev_opts = {
332 .name = "tpmdev",
333 .implied_opt_name = "type",
334 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
335 .desc = {
336 /* options are defined in the TPM backends */
337 { /* end of list */ }
338 },
339 };
340
341 static QemuOptsList qemu_overcommit_opts = {
342 .name = "overcommit",
343 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
344 .desc = {
345 {
346 .name = "mem-lock",
347 .type = QEMU_OPT_BOOL,
348 },
349 {
350 .name = "cpu-pm",
351 .type = QEMU_OPT_BOOL,
352 },
353 { /* end of list */ }
354 },
355 };
356
357 static QemuOptsList qemu_msg_opts = {
358 .name = "msg",
359 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
360 .desc = {
361 {
362 .name = "timestamp",
363 .type = QEMU_OPT_BOOL,
364 },
365 {
366 .name = "guest-name",
367 .type = QEMU_OPT_BOOL,
368 .help = "Prepends guest name for error messages but only if "
369 "-name guest is set otherwise option is ignored\n",
370 },
371 { /* end of list */ }
372 },
373 };
374
375 static QemuOptsList qemu_name_opts = {
376 .name = "name",
377 .implied_opt_name = "guest",
378 .merge_lists = true,
379 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
380 .desc = {
381 {
382 .name = "guest",
383 .type = QEMU_OPT_STRING,
384 .help = "Sets the name of the guest.\n"
385 "This name will be displayed in the SDL window caption.\n"
386 "The name will also be used for the VNC server",
387 }, {
388 .name = "process",
389 .type = QEMU_OPT_STRING,
390 .help = "Sets the name of the QEMU process, as shown in top etc",
391 }, {
392 .name = "debug-threads",
393 .type = QEMU_OPT_BOOL,
394 .help = "When enabled, name the individual threads; defaults off.\n"
395 "NOTE: The thread names are for debugging and not a\n"
396 "stable API.",
397 },
398 { /* End of list */ }
399 },
400 };
401
402 static QemuOptsList qemu_mem_opts = {
403 .name = "memory",
404 .implied_opt_name = "size",
405 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
406 .merge_lists = true,
407 .desc = {
408 {
409 .name = "size",
410 .type = QEMU_OPT_SIZE,
411 },
412 {
413 .name = "slots",
414 .type = QEMU_OPT_NUMBER,
415 },
416 {
417 .name = "maxmem",
418 .type = QEMU_OPT_SIZE,
419 },
420 { /* end of list */ }
421 },
422 };
423
424 static QemuOptsList qemu_icount_opts = {
425 .name = "icount",
426 .implied_opt_name = "shift",
427 .merge_lists = true,
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
429 .desc = {
430 {
431 .name = "shift",
432 .type = QEMU_OPT_STRING,
433 }, {
434 .name = "align",
435 .type = QEMU_OPT_BOOL,
436 }, {
437 .name = "sleep",
438 .type = QEMU_OPT_BOOL,
439 }, {
440 .name = "rr",
441 .type = QEMU_OPT_STRING,
442 }, {
443 .name = "rrfile",
444 .type = QEMU_OPT_STRING,
445 }, {
446 .name = "rrsnapshot",
447 .type = QEMU_OPT_STRING,
448 },
449 { /* end of list */ }
450 },
451 };
452
453 static QemuOptsList qemu_fw_cfg_opts = {
454 .name = "fw_cfg",
455 .implied_opt_name = "name",
456 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
457 .desc = {
458 {
459 .name = "name",
460 .type = QEMU_OPT_STRING,
461 .help = "Sets the fw_cfg name of the blob to be inserted",
462 }, {
463 .name = "file",
464 .type = QEMU_OPT_STRING,
465 .help = "Sets the name of the file from which "
466 "the fw_cfg blob will be loaded",
467 }, {
468 .name = "string",
469 .type = QEMU_OPT_STRING,
470 .help = "Sets content of the blob to be inserted from a string",
471 }, {
472 .name = "gen_id",
473 .type = QEMU_OPT_STRING,
474 .help = "Sets id of the object generating the fw_cfg blob "
475 "to be inserted",
476 },
477 { /* end of list */ }
478 },
479 };
480
481 static QemuOptsList qemu_action_opts = {
482 .name = "action",
483 .merge_lists = true,
484 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
485 .desc = {
486 {
487 .name = "shutdown",
488 .type = QEMU_OPT_STRING,
489 },{
490 .name = "reboot",
491 .type = QEMU_OPT_STRING,
492 },{
493 .name = "panic",
494 .type = QEMU_OPT_STRING,
495 },{
496 .name = "watchdog",
497 .type = QEMU_OPT_STRING,
498 },
499 { /* end of list */ }
500 },
501 };
502
503 const char *qemu_get_vm_name(void)
504 {
505 return qemu_name;
506 }
507
508 static void default_driver_disable(const char *driver)
509 {
510 int i;
511
512 if (!driver) {
513 return;
514 }
515
516 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
517 if (strcmp(default_list[i].driver, driver) != 0)
518 continue;
519 *(default_list[i].flag) = 0;
520 }
521 }
522
523 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
524 {
525 const char *driver = qemu_opt_get(opts, "driver");
526
527 default_driver_disable(driver);
528 return 0;
529 }
530
531 static void default_driver_check_json(void)
532 {
533 DeviceOption *opt;
534
535 QTAILQ_FOREACH(opt, &device_opts, next) {
536 const char *driver = qdict_get_try_str(opt->opts, "driver");
537 default_driver_disable(driver);
538 }
539 }
540
541 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
542 {
543 const char *proc_name;
544
545 if (qemu_opt_get(opts, "debug-threads")) {
546 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
547 }
548 qemu_name = qemu_opt_get(opts, "guest");
549
550 proc_name = qemu_opt_get(opts, "process");
551 if (proc_name) {
552 os_set_proc_name(proc_name);
553 }
554
555 return 0;
556 }
557
558 bool defaults_enabled(void)
559 {
560 return has_defaults;
561 }
562
563 #ifndef _WIN32
564 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
565 {
566 int fd, dupfd, flags;
567 int64_t fdset_id;
568 const char *fd_opaque = NULL;
569 AddfdInfo *fdinfo;
570
571 fd = qemu_opt_get_number(opts, "fd", -1);
572 fdset_id = qemu_opt_get_number(opts, "set", -1);
573 fd_opaque = qemu_opt_get(opts, "opaque");
574
575 if (fd < 0) {
576 error_setg(errp, "fd option is required and must be non-negative");
577 return -1;
578 }
579
580 if (fd <= STDERR_FILENO) {
581 error_setg(errp, "fd cannot be a standard I/O stream");
582 return -1;
583 }
584
585 /*
586 * All fds inherited across exec() necessarily have FD_CLOEXEC
587 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
588 */
589 flags = fcntl(fd, F_GETFD);
590 if (flags == -1 || (flags & FD_CLOEXEC)) {
591 error_setg(errp, "fd is not valid or already in use");
592 return -1;
593 }
594
595 if (fdset_id < 0) {
596 error_setg(errp, "set option is required and must be non-negative");
597 return -1;
598 }
599
600 #ifdef F_DUPFD_CLOEXEC
601 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
602 #else
603 dupfd = dup(fd);
604 if (dupfd != -1) {
605 qemu_set_cloexec(dupfd);
606 }
607 #endif
608 if (dupfd == -1) {
609 error_setg(errp, "error duplicating fd: %s", strerror(errno));
610 return -1;
611 }
612
613 /* add the duplicate fd, and optionally the opaque string, to the fd set */
614 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
615 &error_abort);
616 g_free(fdinfo);
617
618 return 0;
619 }
620
621 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
622 {
623 int fd;
624
625 fd = qemu_opt_get_number(opts, "fd", -1);
626 close(fd);
627
628 return 0;
629 }
630 #endif
631
632 /***********************************************************/
633 /* QEMU Block devices */
634
635 #define HD_OPTS "media=disk"
636 #define CDROM_OPTS "media=cdrom"
637 #define FD_OPTS ""
638 #define PFLASH_OPTS ""
639 #define MTD_OPTS ""
640 #define SD_OPTS ""
641
642 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
643 {
644 BlockInterfaceType *block_default_type = opaque;
645
646 return drive_new(opts, *block_default_type, errp) == NULL;
647 }
648
649 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
650 {
651 if (qemu_opt_get(opts, "snapshot") == NULL) {
652 qemu_opt_set(opts, "snapshot", "on", &error_abort);
653 }
654 return 0;
655 }
656
657 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
658 int index, const char *optstr)
659 {
660 QemuOpts *opts;
661 DriveInfo *dinfo;
662
663 if (!enable || drive_get_by_index(type, index)) {
664 return;
665 }
666
667 opts = drive_add(type, index, NULL, optstr);
668 if (snapshot) {
669 drive_enable_snapshot(NULL, opts, NULL);
670 }
671
672 dinfo = drive_new(opts, type, &error_abort);
673 dinfo->is_default = true;
674
675 }
676
677 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
678 MachineClass *machine_class, int snapshot)
679 {
680 /*
681 * If the currently selected machine wishes to override the
682 * units-per-bus property of its default HBA interface type, do so
683 * now.
684 */
685 if (machine_class->units_per_default_bus) {
686 override_max_devs(machine_class->block_default_type,
687 machine_class->units_per_default_bus);
688 }
689
690 /* open the virtual block devices */
691 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
692 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
693
694 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
695 loc_push_restore(&bdo->loc);
696 qmp_blockdev_add(bdo->bdo, &error_fatal);
697 loc_pop(&bdo->loc);
698 qapi_free_BlockdevOptions(bdo->bdo);
699 g_free(bdo);
700 }
701 if (snapshot) {
702 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
703 NULL, NULL);
704 }
705 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
706 &machine_class->block_default_type, &error_fatal)) {
707 /* We printed help */
708 exit(0);
709 }
710
711 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
712 CDROM_OPTS);
713 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
714 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
715
716 }
717
718 static QemuOptsList qemu_smp_opts = {
719 .name = "smp-opts",
720 .implied_opt_name = "cpus",
721 .merge_lists = true,
722 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
723 .desc = {
724 {
725 .name = "cpus",
726 .type = QEMU_OPT_NUMBER,
727 }, {
728 .name = "sockets",
729 .type = QEMU_OPT_NUMBER,
730 }, {
731 .name = "dies",
732 .type = QEMU_OPT_NUMBER,
733 }, {
734 .name = "clusters",
735 .type = QEMU_OPT_NUMBER,
736 }, {
737 .name = "cores",
738 .type = QEMU_OPT_NUMBER,
739 }, {
740 .name = "threads",
741 .type = QEMU_OPT_NUMBER,
742 }, {
743 .name = "maxcpus",
744 .type = QEMU_OPT_NUMBER,
745 },
746 { /*End of list */ }
747 },
748 };
749
750 static void realtime_init(void)
751 {
752 if (enable_mlock) {
753 if (os_mlock() < 0) {
754 error_report("locking memory failed");
755 exit(1);
756 }
757 }
758 }
759
760
761 static void configure_msg(QemuOpts *opts)
762 {
763 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
764 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
765 }
766
767
768 /***********************************************************/
769 /* USB devices */
770
771 static int usb_device_add(const char *devname)
772 {
773 USBDevice *dev = NULL;
774
775 if (!machine_usb(current_machine)) {
776 return -1;
777 }
778
779 dev = usbdevice_create(devname);
780 if (!dev)
781 return -1;
782
783 return 0;
784 }
785
786 static int usb_parse(const char *cmdline)
787 {
788 int r;
789 r = usb_device_add(cmdline);
790 if (r < 0) {
791 error_report("could not add USB device '%s'", cmdline);
792 }
793 return r;
794 }
795
796 /***********************************************************/
797 /* machine registration */
798
799 static MachineClass *find_machine(const char *name, GSList *machines)
800 {
801 GSList *el;
802
803 for (el = machines; el; el = el->next) {
804 MachineClass *mc = el->data;
805
806 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
807 return mc;
808 }
809 }
810
811 return NULL;
812 }
813
814 static MachineClass *find_default_machine(GSList *machines)
815 {
816 GSList *el;
817 MachineClass *default_machineclass = NULL;
818
819 for (el = machines; el; el = el->next) {
820 MachineClass *mc = el->data;
821
822 if (mc->is_default) {
823 assert(default_machineclass == NULL && "Multiple default machines");
824 default_machineclass = mc;
825 }
826 }
827
828 return default_machineclass;
829 }
830
831 static void version(void)
832 {
833 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
834 QEMU_COPYRIGHT "\n");
835 }
836
837 static void help(int exitcode)
838 {
839 version();
840 printf("usage: %s [options] [disk_image]\n\n"
841 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
842 g_get_prgname());
843
844 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
845 if ((arch_mask) & arch_type) \
846 fputs(opt_help, stdout);
847
848 #define ARCHHEADING(text, arch_mask) \
849 if ((arch_mask) & arch_type) \
850 puts(stringify(text));
851
852 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
853
854 #include "qemu-options.def"
855
856 printf("\nDuring emulation, the following keys are useful:\n"
857 "ctrl-alt-f toggle full screen\n"
858 "ctrl-alt-n switch to virtual console 'n'\n"
859 "ctrl-alt toggle mouse and keyboard grab\n"
860 "\n"
861 "When using -nographic, press 'ctrl-a h' to get some help.\n"
862 "\n"
863 QEMU_HELP_BOTTOM "\n");
864
865 exit(exitcode);
866 }
867
868 #define HAS_ARG 0x0001
869
870 typedef struct QEMUOption {
871 const char *name;
872 int flags;
873 int index;
874 uint32_t arch_mask;
875 } QEMUOption;
876
877 static const QEMUOption qemu_options[] = {
878 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
879
880 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
881 { option, opt_arg, opt_enum, arch_mask },
882 #define DEFHEADING(text)
883 #define ARCHHEADING(text, arch_mask)
884
885 #include "qemu-options.def"
886 { NULL },
887 };
888
889 typedef struct VGAInterfaceInfo {
890 const char *opt_name; /* option name */
891 const char *name; /* human-readable name */
892 /* Class names indicating that support is available.
893 * If no class is specified, the interface is always available */
894 const char *class_names[2];
895 } VGAInterfaceInfo;
896
897 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
898 [VGA_NONE] = {
899 .opt_name = "none",
900 .name = "no graphic card",
901 },
902 [VGA_STD] = {
903 .opt_name = "std",
904 .name = "standard VGA",
905 .class_names = { "VGA", "isa-vga" },
906 },
907 [VGA_CIRRUS] = {
908 .opt_name = "cirrus",
909 .name = "Cirrus VGA",
910 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
911 },
912 [VGA_VMWARE] = {
913 .opt_name = "vmware",
914 .name = "VMWare SVGA",
915 .class_names = { "vmware-svga" },
916 },
917 [VGA_VIRTIO] = {
918 .opt_name = "virtio",
919 .name = "Virtio VGA",
920 .class_names = { "virtio-vga" },
921 },
922 [VGA_QXL] = {
923 .opt_name = "qxl",
924 .name = "QXL VGA",
925 .class_names = { "qxl-vga" },
926 },
927 [VGA_TCX] = {
928 .opt_name = "tcx",
929 .name = "TCX framebuffer",
930 .class_names = { "sun-tcx" },
931 },
932 [VGA_CG3] = {
933 .opt_name = "cg3",
934 .name = "CG3 framebuffer",
935 .class_names = { "cgthree" },
936 },
937 #ifdef CONFIG_XEN_BACKEND
938 [VGA_XENFB] = {
939 .opt_name = "xenfb",
940 .name = "Xen paravirtualized framebuffer",
941 },
942 #endif
943 };
944
945 static bool vga_interface_available(VGAInterfaceType t)
946 {
947 const VGAInterfaceInfo *ti = &vga_interfaces[t];
948
949 assert(t < VGA_TYPE_MAX);
950 return !ti->class_names[0] ||
951 module_object_class_by_name(ti->class_names[0]) ||
952 module_object_class_by_name(ti->class_names[1]);
953 }
954
955 static const char *
956 get_default_vga_model(const MachineClass *machine_class)
957 {
958 if (machine_class->default_display) {
959 return machine_class->default_display;
960 } else if (vga_interface_available(VGA_CIRRUS)) {
961 return "cirrus";
962 } else if (vga_interface_available(VGA_STD)) {
963 return "std";
964 }
965
966 return NULL;
967 }
968
969 static void select_vgahw(const MachineClass *machine_class, const char *p)
970 {
971 const char *opts;
972 int t;
973
974 if (g_str_equal(p, "help")) {
975 const char *def = get_default_vga_model(machine_class);
976
977 for (t = 0; t < VGA_TYPE_MAX; t++) {
978 const VGAInterfaceInfo *ti = &vga_interfaces[t];
979
980 if (vga_interface_available(t) && ti->opt_name) {
981 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
982 g_str_equal(ti->opt_name, def) ? " (default)" : "");
983 }
984 }
985 exit(0);
986 }
987
988 assert(vga_interface_type == VGA_NONE);
989 for (t = 0; t < VGA_TYPE_MAX; t++) {
990 const VGAInterfaceInfo *ti = &vga_interfaces[t];
991 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
992 if (!vga_interface_available(t)) {
993 error_report("%s not available", ti->name);
994 exit(1);
995 }
996 vga_interface_type = t;
997 break;
998 }
999 }
1000 if (t == VGA_TYPE_MAX) {
1001 invalid_vga:
1002 error_report("unknown vga type: %s", p);
1003 exit(1);
1004 }
1005 while (*opts) {
1006 const char *nextopt;
1007
1008 if (strstart(opts, ",retrace=", &nextopt)) {
1009 opts = nextopt;
1010 if (strstart(opts, "dumb", &nextopt))
1011 vga_retrace_method = VGA_RETRACE_DUMB;
1012 else if (strstart(opts, "precise", &nextopt))
1013 vga_retrace_method = VGA_RETRACE_PRECISE;
1014 else goto invalid_vga;
1015 } else goto invalid_vga;
1016 opts = nextopt;
1017 }
1018 }
1019
1020 static void parse_display_qapi(const char *optarg)
1021 {
1022 DisplayOptions *opts;
1023 Visitor *v;
1024
1025 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1026
1027 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1028 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1029
1030 qapi_free_DisplayOptions(opts);
1031 visit_free(v);
1032 }
1033
1034 DisplayOptions *qmp_query_display_options(Error **errp)
1035 {
1036 return QAPI_CLONE(DisplayOptions, &dpy);
1037 }
1038
1039 static void parse_display(const char *p)
1040 {
1041 const char *opts;
1042
1043 if (is_help_option(p)) {
1044 qemu_display_help();
1045 exit(0);
1046 }
1047
1048 if (strstart(p, "sdl", &opts)) {
1049 /*
1050 * sdl DisplayType needs hand-crafted parser instead of
1051 * parse_display_qapi() due to some options not in
1052 * DisplayOptions, specifically:
1053 * - ctrl_grab + alt_grab
1054 * They can't be moved into the QAPI since they use underscores,
1055 * thus they will get replaced by "grab-mod" in the long term
1056 */
1057 #if defined(CONFIG_SDL)
1058 dpy.type = DISPLAY_TYPE_SDL;
1059 while (*opts) {
1060 const char *nextopt;
1061
1062 if (strstart(opts, ",grab-mod=", &nextopt)) {
1063 opts = nextopt;
1064 if (strstart(opts, "lshift-lctrl-lalt", &nextopt)) {
1065 alt_grab = 1;
1066 } else if (strstart(opts, "rctrl", &nextopt)) {
1067 ctrl_grab = 1;
1068 } else {
1069 goto invalid_sdl_args;
1070 }
1071 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1072 opts = nextopt;
1073 if (strstart(opts, "on", &nextopt)) {
1074 alt_grab = 1;
1075 } else if (strstart(opts, "off", &nextopt)) {
1076 alt_grab = 0;
1077 } else {
1078 goto invalid_sdl_args;
1079 }
1080 warn_report("alt_grab is deprecated, use grab-mod instead.");
1081 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1082 opts = nextopt;
1083 if (strstart(opts, "on", &nextopt)) {
1084 ctrl_grab = 1;
1085 } else if (strstart(opts, "off", &nextopt)) {
1086 ctrl_grab = 0;
1087 } else {
1088 goto invalid_sdl_args;
1089 }
1090 warn_report("ctrl_grab is deprecated, use grab-mod instead.");
1091 } else if (strstart(opts, ",window_close=", &nextopt) ||
1092 strstart(opts, ",window-close=", &nextopt)) {
1093 if (strstart(opts, ",window_close=", NULL)) {
1094 warn_report("window_close with an underscore is deprecated,"
1095 " please use window-close instead.");
1096 }
1097 opts = nextopt;
1098 dpy.has_window_close = true;
1099 if (strstart(opts, "on", &nextopt)) {
1100 dpy.window_close = true;
1101 } else if (strstart(opts, "off", &nextopt)) {
1102 dpy.window_close = false;
1103 } else {
1104 goto invalid_sdl_args;
1105 }
1106 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1107 opts = nextopt;
1108 dpy.has_show_cursor = true;
1109 if (strstart(opts, "on", &nextopt)) {
1110 dpy.show_cursor = true;
1111 } else if (strstart(opts, "off", &nextopt)) {
1112 dpy.show_cursor = false;
1113 } else {
1114 goto invalid_sdl_args;
1115 }
1116 } else if (strstart(opts, ",gl=", &nextopt)) {
1117 opts = nextopt;
1118 dpy.has_gl = true;
1119 if (strstart(opts, "on", &nextopt)) {
1120 dpy.gl = DISPLAYGL_MODE_ON;
1121 } else if (strstart(opts, "core", &nextopt)) {
1122 dpy.gl = DISPLAYGL_MODE_CORE;
1123 } else if (strstart(opts, "es", &nextopt)) {
1124 dpy.gl = DISPLAYGL_MODE_ES;
1125 } else if (strstart(opts, "off", &nextopt)) {
1126 dpy.gl = DISPLAYGL_MODE_OFF;
1127 } else {
1128 goto invalid_sdl_args;
1129 }
1130 } else {
1131 invalid_sdl_args:
1132 error_report("invalid SDL option string");
1133 exit(1);
1134 }
1135 opts = nextopt;
1136 }
1137 #else
1138 error_report("SDL display supported is not available in this binary");
1139 exit(1);
1140 #endif
1141 } else if (strstart(p, "vnc", &opts)) {
1142 /*
1143 * vnc isn't a (local) DisplayType but a protocol for remote
1144 * display access.
1145 */
1146 if (*opts == '=') {
1147 vnc_parse(opts + 1);
1148 } else {
1149 error_report("VNC requires a display argument vnc=<display>");
1150 exit(1);
1151 }
1152 } else {
1153 parse_display_qapi(p);
1154 }
1155 }
1156
1157 static inline bool nonempty_str(const char *str)
1158 {
1159 return str && *str;
1160 }
1161
1162 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1163 {
1164 gchar *buf;
1165 size_t size;
1166 const char *name, *file, *str, *gen_id;
1167 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1168
1169 if (fw_cfg == NULL) {
1170 error_setg(errp, "fw_cfg device not available");
1171 return -1;
1172 }
1173 name = qemu_opt_get(opts, "name");
1174 file = qemu_opt_get(opts, "file");
1175 str = qemu_opt_get(opts, "string");
1176 gen_id = qemu_opt_get(opts, "gen_id");
1177
1178 /* we need the name, and exactly one of: file, content string, gen_id */
1179 if (!nonempty_str(name) ||
1180 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1181 error_setg(errp, "name, plus exactly one of file,"
1182 " string and gen_id, are needed");
1183 return -1;
1184 }
1185 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1186 error_setg(errp, "name too long (max. %d char)",
1187 FW_CFG_MAX_FILE_PATH - 1);
1188 return -1;
1189 }
1190 if (nonempty_str(gen_id)) {
1191 /*
1192 * In this particular case where the content is populated
1193 * internally, the "etc/" namespace protection is relaxed,
1194 * so do not emit a warning.
1195 */
1196 } else if (strncmp(name, "opt/", 4) != 0) {
1197 warn_report("externally provided fw_cfg item names "
1198 "should be prefixed with \"opt/\"");
1199 }
1200 if (nonempty_str(str)) {
1201 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1202 buf = g_memdup(str, size);
1203 } else if (nonempty_str(gen_id)) {
1204 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1205 return -1;
1206 }
1207 return 0;
1208 } else {
1209 GError *err = NULL;
1210 if (!g_file_get_contents(file, &buf, &size, &err)) {
1211 error_setg(errp, "can't load %s: %s", file, err->message);
1212 g_error_free(err);
1213 return -1;
1214 }
1215 }
1216 /* For legacy, keep user files in a specific global order. */
1217 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1218 fw_cfg_add_file(fw_cfg, name, buf, size);
1219 fw_cfg_reset_order_override(fw_cfg);
1220 return 0;
1221 }
1222
1223 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1224 {
1225 return qdev_device_help(opts);
1226 }
1227
1228 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1229 {
1230 DeviceState *dev;
1231
1232 dev = qdev_device_add(opts, errp);
1233 if (!dev && *errp) {
1234 error_report_err(*errp);
1235 return -1;
1236 } else if (dev) {
1237 object_unref(OBJECT(dev));
1238 }
1239 return 0;
1240 }
1241
1242 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1243 {
1244 Error *local_err = NULL;
1245
1246 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1247 if (local_err) {
1248 error_propagate(errp, local_err);
1249 return -1;
1250 }
1251 exit(0);
1252 }
1253 return 0;
1254 }
1255
1256 #ifdef CONFIG_VIRTFS
1257 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1258 {
1259 return qemu_fsdev_add(opts, errp);
1260 }
1261 #endif
1262
1263 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1264 {
1265 return monitor_init_opts(opts, errp);
1266 }
1267
1268 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
1269 {
1270 static int monitor_device_index = 0;
1271 QemuOpts *opts;
1272 const char *p;
1273 char label[32];
1274
1275 if (strstart(optarg, "chardev:", &p)) {
1276 snprintf(label, sizeof(label), "%s", p);
1277 } else {
1278 snprintf(label, sizeof(label), "compat_monitor%d",
1279 monitor_device_index);
1280 opts = qemu_chr_parse_compat(label, optarg, true);
1281 if (!opts) {
1282 error_report("parse error: %s", optarg);
1283 exit(1);
1284 }
1285 }
1286
1287 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1288 qemu_opt_set(opts, "mode", mode, &error_abort);
1289 qemu_opt_set(opts, "chardev", label, &error_abort);
1290 if (!strcmp(mode, "control")) {
1291 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1292 } else {
1293 assert(pretty == false);
1294 }
1295 monitor_device_index++;
1296 }
1297
1298 struct device_config {
1299 enum {
1300 DEV_USB, /* -usbdevice */
1301 DEV_SERIAL, /* -serial */
1302 DEV_PARALLEL, /* -parallel */
1303 DEV_DEBUGCON, /* -debugcon */
1304 DEV_GDB, /* -gdb, -s */
1305 DEV_SCLP, /* s390 sclp */
1306 } type;
1307 const char *cmdline;
1308 Location loc;
1309 QTAILQ_ENTRY(device_config) next;
1310 };
1311
1312 static QTAILQ_HEAD(, device_config) device_configs =
1313 QTAILQ_HEAD_INITIALIZER(device_configs);
1314
1315 static void add_device_config(int type, const char *cmdline)
1316 {
1317 struct device_config *conf;
1318
1319 conf = g_malloc0(sizeof(*conf));
1320 conf->type = type;
1321 conf->cmdline = cmdline;
1322 loc_save(&conf->loc);
1323 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1324 }
1325
1326 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1327 {
1328 struct device_config *conf;
1329 int rc;
1330
1331 QTAILQ_FOREACH(conf, &device_configs, next) {
1332 if (conf->type != type)
1333 continue;
1334 loc_push_restore(&conf->loc);
1335 rc = func(conf->cmdline);
1336 loc_pop(&conf->loc);
1337 if (rc) {
1338 return rc;
1339 }
1340 }
1341 return 0;
1342 }
1343
1344 static void qemu_disable_default_devices(void)
1345 {
1346 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1347
1348 default_driver_check_json();
1349 qemu_opts_foreach(qemu_find_opts("device"),
1350 default_driver_check, NULL, NULL);
1351 qemu_opts_foreach(qemu_find_opts("global"),
1352 default_driver_check, NULL, NULL);
1353
1354 if (!vga_model && !default_vga) {
1355 vga_interface_type = VGA_DEVICE;
1356 vga_interface_created = true;
1357 }
1358 if (!has_defaults || machine_class->no_serial) {
1359 default_serial = 0;
1360 }
1361 if (!has_defaults || machine_class->no_parallel) {
1362 default_parallel = 0;
1363 }
1364 if (!has_defaults || machine_class->no_floppy) {
1365 default_floppy = 0;
1366 }
1367 if (!has_defaults || machine_class->no_cdrom) {
1368 default_cdrom = 0;
1369 }
1370 if (!has_defaults || machine_class->no_sdcard) {
1371 default_sdcard = 0;
1372 }
1373 if (!has_defaults) {
1374 default_monitor = 0;
1375 default_net = 0;
1376 default_vga = 0;
1377 }
1378 }
1379
1380 static void qemu_create_default_devices(void)
1381 {
1382 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1383
1384 if (is_daemonized()) {
1385 /* According to documentation and historically, -nographic redirects
1386 * serial port, parallel port and monitor to stdio, which does not work
1387 * with -daemonize. We can redirect these to null instead, but since
1388 * -nographic is legacy, let's just error out.
1389 * We disallow -nographic only if all other ports are not redirected
1390 * explicitly, to not break existing legacy setups which uses
1391 * -nographic _and_ redirects all ports explicitly - this is valid
1392 * usage, -nographic is just a no-op in this case.
1393 */
1394 if (nographic
1395 && (default_parallel || default_serial || default_monitor)) {
1396 error_report("-nographic cannot be used with -daemonize");
1397 exit(1);
1398 }
1399 }
1400
1401 if (nographic) {
1402 if (default_parallel)
1403 add_device_config(DEV_PARALLEL, "null");
1404 if (default_serial && default_monitor) {
1405 add_device_config(DEV_SERIAL, "mon:stdio");
1406 } else {
1407 if (default_serial)
1408 add_device_config(DEV_SERIAL, "stdio");
1409 if (default_monitor)
1410 monitor_parse("stdio", "readline", false);
1411 }
1412 } else {
1413 if (default_serial)
1414 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1415 if (default_parallel)
1416 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1417 if (default_monitor)
1418 monitor_parse("vc:80Cx24C", "readline", false);
1419 }
1420
1421 if (default_net) {
1422 QemuOptsList *net = qemu_find_opts("net");
1423 qemu_opts_parse(net, "nic", true, &error_abort);
1424 #ifdef CONFIG_SLIRP
1425 qemu_opts_parse(net, "user", true, &error_abort);
1426 #endif
1427 }
1428
1429 #if defined(CONFIG_VNC)
1430 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
1431 display_remote++;
1432 }
1433 #endif
1434 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1435 if (!qemu_display_find_default(&dpy)) {
1436 dpy.type = DISPLAY_TYPE_NONE;
1437 #if defined(CONFIG_VNC)
1438 vnc_parse("localhost:0,to=99,id=default");
1439 #endif
1440 }
1441 }
1442 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1443 dpy.type = DISPLAY_TYPE_NONE;
1444 }
1445
1446 /* If no default VGA is requested, the default is "none". */
1447 if (default_vga) {
1448 vga_model = get_default_vga_model(machine_class);
1449 }
1450 if (vga_model) {
1451 select_vgahw(machine_class, vga_model);
1452 }
1453 }
1454
1455 static int serial_parse(const char *devname)
1456 {
1457 int index = num_serial_hds;
1458 char label[32];
1459
1460 if (strcmp(devname, "none") == 0)
1461 return 0;
1462 snprintf(label, sizeof(label), "serial%d", index);
1463 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1464
1465 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1466 if (!serial_hds[index]) {
1467 error_report("could not connect serial device"
1468 " to character backend '%s'", devname);
1469 return -1;
1470 }
1471 num_serial_hds++;
1472 return 0;
1473 }
1474
1475 Chardev *serial_hd(int i)
1476 {
1477 assert(i >= 0);
1478 if (i < num_serial_hds) {
1479 return serial_hds[i];
1480 }
1481 return NULL;
1482 }
1483
1484 static int parallel_parse(const char *devname)
1485 {
1486 static int index = 0;
1487 char label[32];
1488
1489 if (strcmp(devname, "none") == 0)
1490 return 0;
1491 if (index == MAX_PARALLEL_PORTS) {
1492 error_report("too many parallel ports");
1493 exit(1);
1494 }
1495 snprintf(label, sizeof(label), "parallel%d", index);
1496 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1497 if (!parallel_hds[index]) {
1498 error_report("could not connect parallel device"
1499 " to character backend '%s'", devname);
1500 return -1;
1501 }
1502 index++;
1503 return 0;
1504 }
1505
1506 static int debugcon_parse(const char *devname)
1507 {
1508 QemuOpts *opts;
1509
1510 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1511 error_report("invalid character backend '%s'", devname);
1512 exit(1);
1513 }
1514 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1515 if (!opts) {
1516 error_report("already have a debugcon device");
1517 exit(1);
1518 }
1519 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1520 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1521 return 0;
1522 }
1523
1524 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1525 {
1526 const MachineClass *mc1 = a, *mc2 = b;
1527 int res;
1528
1529 if (mc1->family == NULL) {
1530 if (mc2->family == NULL) {
1531 /* Compare standalone machine types against each other; they sort
1532 * in increasing order.
1533 */
1534 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1535 object_class_get_name(OBJECT_CLASS(mc2)));
1536 }
1537
1538 /* Standalone machine types sort after families. */
1539 return 1;
1540 }
1541
1542 if (mc2->family == NULL) {
1543 /* Families sort before standalone machine types. */
1544 return -1;
1545 }
1546
1547 /* Families sort between each other alphabetically increasingly. */
1548 res = strcmp(mc1->family, mc2->family);
1549 if (res != 0) {
1550 return res;
1551 }
1552
1553 /* Within the same family, machine types sort in decreasing order. */
1554 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1555 object_class_get_name(OBJECT_CLASS(mc1)));
1556 }
1557
1558 static void machine_help_func(const QDict *qdict)
1559 {
1560 GSList *machines, *el;
1561 const char *type = qdict_get_try_str(qdict, "type");
1562
1563 machines = object_class_get_list(TYPE_MACHINE, false);
1564 if (type) {
1565 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1566 if (machine_class) {
1567 type_print_class_properties(object_class_get_name(machine_class));
1568 return;
1569 }
1570 }
1571
1572 printf("Supported machines are:\n");
1573 machines = g_slist_sort(machines, machine_class_cmp);
1574 for (el = machines; el; el = el->next) {
1575 MachineClass *mc = el->data;
1576 if (mc->alias) {
1577 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1578 }
1579 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1580 mc->is_default ? " (default)" : "",
1581 mc->deprecation_reason ? " (deprecated)" : "");
1582 }
1583 }
1584
1585 static void
1586 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1587 {
1588 QDict *opts;
1589
1590 opts = qdict_new();
1591 /* Preserve the caller's reference to prop. */
1592 qobject_ref(prop);
1593 qdict_put(opts, propname, prop);
1594 keyval_merge(machine_opts_dict, opts, errp);
1595 qobject_unref(opts);
1596 }
1597
1598 static void
1599 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1600 const char *arg)
1601 {
1602 QDict *prop = NULL;
1603 bool help = false;
1604
1605 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1606 if (help) {
1607 qemu_opts_print_help(opts_list, true);
1608 exit(0);
1609 }
1610 machine_merge_property(propname, prop, &error_fatal);
1611 qobject_unref(prop);
1612 }
1613
1614 static const char *pid_file;
1615 static Notifier qemu_unlink_pidfile_notifier;
1616
1617 static void qemu_unlink_pidfile(Notifier *n, void *data)
1618 {
1619 if (pid_file) {
1620 unlink(pid_file);
1621 }
1622 }
1623
1624 static const QEMUOption *lookup_opt(int argc, char **argv,
1625 const char **poptarg, int *poptind)
1626 {
1627 const QEMUOption *popt;
1628 int optind = *poptind;
1629 char *r = argv[optind];
1630 const char *optarg;
1631
1632 loc_set_cmdline(argv, optind, 1);
1633 optind++;
1634 /* Treat --foo the same as -foo. */
1635 if (r[1] == '-')
1636 r++;
1637 popt = qemu_options;
1638 for(;;) {
1639 if (!popt->name) {
1640 error_report("invalid option");
1641 exit(1);
1642 }
1643 if (!strcmp(popt->name, r + 1))
1644 break;
1645 popt++;
1646 }
1647 if (popt->flags & HAS_ARG) {
1648 if (optind >= argc) {
1649 error_report("requires an argument");
1650 exit(1);
1651 }
1652 optarg = argv[optind++];
1653 loc_set_cmdline(argv, optind - 2, 2);
1654 } else {
1655 optarg = NULL;
1656 }
1657
1658 *poptarg = optarg;
1659 *poptind = optind;
1660
1661 return popt;
1662 }
1663
1664 static MachineClass *select_machine(QDict *qdict, Error **errp)
1665 {
1666 const char *optarg = qdict_get_try_str(qdict, "type");
1667 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1668 MachineClass *machine_class;
1669 Error *local_err = NULL;
1670
1671 if (optarg) {
1672 machine_class = find_machine(optarg, machines);
1673 qdict_del(qdict, "type");
1674 if (!machine_class) {
1675 error_setg(&local_err, "unsupported machine type");
1676 }
1677 } else {
1678 machine_class = find_default_machine(machines);
1679 if (!machine_class) {
1680 error_setg(&local_err, "No machine specified, and there is no default");
1681 }
1682 }
1683
1684 g_slist_free(machines);
1685 if (local_err) {
1686 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1687 error_propagate(errp, local_err);
1688 }
1689 return machine_class;
1690 }
1691
1692 static int object_parse_property_opt(Object *obj,
1693 const char *name, const char *value,
1694 const char *skip, Error **errp)
1695 {
1696 if (g_str_equal(name, skip)) {
1697 return 0;
1698 }
1699
1700 if (!object_property_parse(obj, name, value, errp)) {
1701 return -1;
1702 }
1703
1704 return 0;
1705 }
1706
1707 /* *Non*recursively replace underscores with dashes in QDict keys. */
1708 static void keyval_dashify(QDict *qdict, Error **errp)
1709 {
1710 const QDictEntry *ent, *next;
1711 char *p;
1712
1713 for (ent = qdict_first(qdict); ent; ent = next) {
1714 g_autofree char *new_key = NULL;
1715
1716 next = qdict_next(qdict, ent);
1717 if (!strchr(ent->key, '_')) {
1718 continue;
1719 }
1720 new_key = g_strdup(ent->key);
1721 for (p = new_key; *p; p++) {
1722 if (*p == '_') {
1723 *p = '-';
1724 }
1725 }
1726 if (qdict_haskey(qdict, new_key)) {
1727 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1728 return;
1729 }
1730 qobject_ref(ent->value);
1731 qdict_put_obj(qdict, new_key, ent->value);
1732 qdict_del(qdict, ent->key);
1733 }
1734 }
1735
1736 static void qemu_apply_legacy_machine_options(QDict *qdict)
1737 {
1738 const char *value;
1739
1740 keyval_dashify(qdict, &error_fatal);
1741
1742 /* Legacy options do not correspond to MachineState properties. */
1743 value = qdict_get_try_str(qdict, "accel");
1744 if (value) {
1745 accelerators = g_strdup(value);
1746 qdict_del(qdict, "accel");
1747 }
1748
1749 value = qdict_get_try_str(qdict, "igd-passthru");
1750 if (value) {
1751 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1752 false);
1753 qdict_del(qdict, "igd-passthru");
1754 }
1755
1756 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1757 if (value) {
1758 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1759 false);
1760 qdict_del(qdict, "kvm-shadow-mem");
1761 }
1762
1763 value = qdict_get_try_str(qdict, "kernel-irqchip");
1764 if (value) {
1765 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1766 false);
1767 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1768 false);
1769 qdict_del(qdict, "kernel-irqchip");
1770 }
1771 }
1772
1773 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1774 {
1775 ObjectOption *opt, *next;
1776
1777 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1778 const char *type = ObjectType_str(opt->opts->qom_type);
1779 if (type_opt_predicate(type)) {
1780 user_creatable_add_qapi(opt->opts, &error_fatal);
1781 qapi_free_ObjectOptions(opt->opts);
1782 QTAILQ_REMOVE(&object_opts, opt, next);
1783 g_free(opt);
1784 }
1785 }
1786 }
1787
1788 static void object_option_add_visitor(Visitor *v)
1789 {
1790 ObjectOption *opt = g_new0(ObjectOption, 1);
1791 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1792 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1793 }
1794
1795 static void object_option_parse(const char *optarg)
1796 {
1797 QemuOpts *opts;
1798 const char *type;
1799 Visitor *v;
1800
1801 if (optarg[0] == '{') {
1802 QObject *obj = qobject_from_json(optarg, &error_fatal);
1803
1804 v = qobject_input_visitor_new(obj);
1805 qobject_unref(obj);
1806 } else {
1807 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1808 optarg, true);
1809 if (!opts) {
1810 exit(1);
1811 }
1812
1813 type = qemu_opt_get(opts, "qom-type");
1814 if (!type) {
1815 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1816 }
1817 if (user_creatable_print_help(type, opts)) {
1818 exit(0);
1819 }
1820
1821 v = opts_visitor_new(opts);
1822 }
1823
1824 object_option_add_visitor(v);
1825 visit_free(v);
1826 }
1827
1828 /*
1829 * Initial object creation happens before all other
1830 * QEMU data types are created. The majority of objects
1831 * can be created at this point. The rng-egd object
1832 * cannot be created here, as it depends on the chardev
1833 * already existing.
1834 */
1835 static bool object_create_early(const char *type)
1836 {
1837 /*
1838 * Objects should not be made "delayed" without a reason. If you
1839 * add one, state the reason in a comment!
1840 */
1841
1842 /* Reason: property "chardev" */
1843 if (g_str_equal(type, "rng-egd") ||
1844 g_str_equal(type, "qtest")) {
1845 return false;
1846 }
1847
1848 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1849 /* Reason: cryptodev-vhost-user property "chardev" */
1850 if (g_str_equal(type, "cryptodev-vhost-user")) {
1851 return false;
1852 }
1853 #endif
1854
1855 /* Reason: vhost-user-blk-server property "node-name" */
1856 if (g_str_equal(type, "vhost-user-blk-server")) {
1857 return false;
1858 }
1859 /*
1860 * Reason: filter-* property "netdev" etc.
1861 */
1862 if (g_str_equal(type, "filter-buffer") ||
1863 g_str_equal(type, "filter-dump") ||
1864 g_str_equal(type, "filter-mirror") ||
1865 g_str_equal(type, "filter-redirector") ||
1866 g_str_equal(type, "colo-compare") ||
1867 g_str_equal(type, "filter-rewriter") ||
1868 g_str_equal(type, "filter-replay")) {
1869 return false;
1870 }
1871
1872 /*
1873 * Allocation of large amounts of memory may delay
1874 * chardev initialization for too long, and trigger timeouts
1875 * on software that waits for a monitor socket to be created
1876 * (e.g. libvirt).
1877 */
1878 if (g_str_has_prefix(type, "memory-backend-")) {
1879 return false;
1880 }
1881
1882 return true;
1883 }
1884
1885 static void qemu_apply_machine_options(QDict *qdict)
1886 {
1887 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1888 const char *boot_order = NULL;
1889 const char *boot_once = NULL;
1890 QemuOpts *opts;
1891
1892 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1893 current_machine->ram_size = ram_size;
1894 current_machine->maxram_size = maxram_size;
1895 current_machine->ram_slots = ram_slots;
1896
1897 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
1898 if (opts) {
1899 boot_order = qemu_opt_get(opts, "order");
1900 if (boot_order) {
1901 validate_bootdevices(boot_order, &error_fatal);
1902 }
1903
1904 boot_once = qemu_opt_get(opts, "once");
1905 if (boot_once) {
1906 validate_bootdevices(boot_once, &error_fatal);
1907 }
1908
1909 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
1910 boot_strict = qemu_opt_get_bool(opts, "strict", false);
1911 }
1912
1913 if (!boot_order) {
1914 boot_order = machine_class->default_boot_order;
1915 }
1916
1917 current_machine->boot_order = boot_order;
1918 current_machine->boot_once = boot_once;
1919
1920 if (semihosting_enabled() && !semihosting_get_argc()) {
1921 /* fall back to the -kernel/-append */
1922 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1923 }
1924
1925 if (current_machine->smp.cpus > 1) {
1926 Error *blocker = NULL;
1927 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1928 replay_add_blocker(blocker);
1929 }
1930 }
1931
1932 static void qemu_create_early_backends(void)
1933 {
1934 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1935 #if defined(CONFIG_SDL)
1936 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1937 #else
1938 const bool use_sdl = false;
1939 #endif
1940 #if defined(CONFIG_GTK)
1941 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1942 #else
1943 const bool use_gtk = false;
1944 #endif
1945
1946 if ((alt_grab || ctrl_grab) && !use_sdl) {
1947 error_report("-alt-grab and -ctrl-grab are only valid "
1948 "for SDL, ignoring option");
1949 }
1950 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1951 error_report("window-close is only valid for GTK and SDL, "
1952 "ignoring option");
1953 }
1954
1955 qemu_display_early_init(&dpy);
1956 qemu_console_early_init();
1957
1958 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1959 #if defined(CONFIG_OPENGL)
1960 error_report("OpenGL is not supported by the display");
1961 #else
1962 error_report("OpenGL support is disabled");
1963 #endif
1964 exit(1);
1965 }
1966
1967 object_option_foreach_add(object_create_early);
1968
1969 /* spice needs the timers to be initialized by this point */
1970 /* spice must initialize before audio as it changes the default audiodev */
1971 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1972 qemu_spice.init();
1973
1974 qemu_opts_foreach(qemu_find_opts("chardev"),
1975 chardev_init_func, NULL, &error_fatal);
1976
1977 #ifdef CONFIG_VIRTFS
1978 qemu_opts_foreach(qemu_find_opts("fsdev"),
1979 fsdev_init_func, NULL, &error_fatal);
1980 #endif
1981
1982 /*
1983 * Note: we need to create audio and block backends before
1984 * setting machine properties, so they can be referred to.
1985 */
1986 configure_blockdev(&bdo_queue, machine_class, snapshot);
1987 audio_init_audiodevs();
1988 }
1989
1990
1991 /*
1992 * The remainder of object creation happens after the
1993 * creation of chardev, fsdev, net clients and device data types.
1994 */
1995 static bool object_create_late(const char *type)
1996 {
1997 return !object_create_early(type);
1998 }
1999
2000 static void qemu_create_late_backends(void)
2001 {
2002 if (qtest_chrdev) {
2003 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
2004 }
2005
2006 net_init_clients(&error_fatal);
2007
2008 object_option_foreach_add(object_create_late);
2009
2010 if (tpm_init() < 0) {
2011 exit(1);
2012 }
2013
2014 qemu_opts_foreach(qemu_find_opts("mon"),
2015 mon_init_func, NULL, &error_fatal);
2016
2017 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2018 exit(1);
2019 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2020 exit(1);
2021 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2022 exit(1);
2023
2024 /* now chardevs have been created we may have semihosting to connect */
2025 qemu_semihosting_connect_chardevs();
2026 qemu_semihosting_console_init();
2027 }
2028
2029 static bool have_custom_ram_size(void)
2030 {
2031 QemuOpts *opts = qemu_find_opts_singleton("memory");
2032 return !!qemu_opt_get_size(opts, "size", 0);
2033 }
2034
2035 static void qemu_resolve_machine_memdev(void)
2036 {
2037 if (current_machine->ram_memdev_id) {
2038 Object *backend;
2039 ram_addr_t backend_size;
2040
2041 backend = object_resolve_path_type(current_machine->ram_memdev_id,
2042 TYPE_MEMORY_BACKEND, NULL);
2043 if (!backend) {
2044 error_report("Memory backend '%s' not found",
2045 current_machine->ram_memdev_id);
2046 exit(EXIT_FAILURE);
2047 }
2048 backend_size = object_property_get_uint(backend, "size", &error_abort);
2049 if (have_custom_ram_size() && backend_size != ram_size) {
2050 error_report("Size specified by -m option must match size of "
2051 "explicitly specified 'memory-backend' property");
2052 exit(EXIT_FAILURE);
2053 }
2054 if (mem_path) {
2055 error_report("'-mem-path' can't be used together with"
2056 "'-machine memory-backend'");
2057 exit(EXIT_FAILURE);
2058 }
2059 ram_size = backend_size;
2060 }
2061
2062 if (!xen_enabled()) {
2063 /* On 32-bit hosts, QEMU is limited by virtual address space */
2064 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
2065 error_report("at most 2047 MB RAM can be simulated");
2066 exit(1);
2067 }
2068 }
2069 }
2070
2071 static void set_memory_options(MachineClass *mc)
2072 {
2073 uint64_t sz;
2074 const char *mem_str;
2075 const ram_addr_t default_ram_size = mc->default_ram_size;
2076 QemuOpts *opts = qemu_find_opts_singleton("memory");
2077 Location loc;
2078
2079 loc_push_none(&loc);
2080 qemu_opts_loc_restore(opts);
2081
2082 sz = 0;
2083 mem_str = qemu_opt_get(opts, "size");
2084 if (mem_str) {
2085 if (!*mem_str) {
2086 error_report("missing 'size' option value");
2087 exit(EXIT_FAILURE);
2088 }
2089
2090 sz = qemu_opt_get_size(opts, "size", ram_size);
2091
2092 /* Fix up legacy suffix-less format */
2093 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2094 uint64_t overflow_check = sz;
2095
2096 sz *= MiB;
2097 if (sz / MiB != overflow_check) {
2098 error_report("too large 'size' option value");
2099 exit(EXIT_FAILURE);
2100 }
2101 }
2102 }
2103
2104 /* backward compatibility behaviour for case "-m 0" */
2105 if (sz == 0) {
2106 sz = default_ram_size;
2107 }
2108
2109 sz = QEMU_ALIGN_UP(sz, 8192);
2110 if (mc->fixup_ram_size) {
2111 sz = mc->fixup_ram_size(sz);
2112 }
2113 ram_size = sz;
2114 if (ram_size != sz) {
2115 error_report("ram size too large");
2116 exit(EXIT_FAILURE);
2117 }
2118
2119 maxram_size = ram_size;
2120
2121 if (qemu_opt_get(opts, "maxmem")) {
2122 uint64_t slots;
2123
2124 sz = qemu_opt_get_size(opts, "maxmem", 0);
2125 slots = qemu_opt_get_number(opts, "slots", 0);
2126 if (sz < ram_size) {
2127 error_report("invalid value of -m option maxmem: "
2128 "maximum memory size (0x%" PRIx64 ") must be at least "
2129 "the initial memory size (0x" RAM_ADDR_FMT ")",
2130 sz, ram_size);
2131 exit(EXIT_FAILURE);
2132 } else if (slots && sz == ram_size) {
2133 error_report("invalid value of -m option maxmem: "
2134 "memory slots were specified but maximum memory size "
2135 "(0x%" PRIx64 ") is equal to the initial memory size "
2136 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2137 exit(EXIT_FAILURE);
2138 }
2139
2140 maxram_size = sz;
2141 ram_slots = slots;
2142 } else if (qemu_opt_get(opts, "slots")) {
2143 error_report("invalid -m option value: missing 'maxmem' option");
2144 exit(EXIT_FAILURE);
2145 }
2146
2147 loc_pop(&loc);
2148 }
2149
2150 static void qemu_create_machine(QDict *qdict)
2151 {
2152 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2153 object_set_machine_compat_props(machine_class->compat_props);
2154
2155 set_memory_options(machine_class);
2156
2157 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2158 object_property_add_child(object_get_root(), "machine",
2159 OBJECT(current_machine));
2160 object_property_add_child(container_get(OBJECT(current_machine),
2161 "/unattached"),
2162 "sysbus", OBJECT(sysbus_get_default()));
2163
2164 if (machine_class->minimum_page_bits) {
2165 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2166 /* This would be a board error: specifying a minimum smaller than
2167 * a target's compile-time fixed setting.
2168 */
2169 g_assert_not_reached();
2170 }
2171 }
2172
2173 cpu_exec_init_all();
2174 page_size_init();
2175
2176 if (machine_class->hw_version) {
2177 qemu_set_hw_version(machine_class->hw_version);
2178 }
2179
2180 /*
2181 * Get the default machine options from the machine if it is not already
2182 * specified either by the configuration file or by the command line.
2183 */
2184 if (machine_class->default_machine_opts) {
2185 QDict *default_opts =
2186 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2187 &error_abort);
2188 qemu_apply_legacy_machine_options(default_opts);
2189 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2190 false, &error_abort);
2191 qobject_unref(default_opts);
2192 }
2193 }
2194
2195 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2196 {
2197 GlobalProperty *g;
2198
2199 g = g_malloc0(sizeof(*g));
2200 g->driver = qemu_opt_get(opts, "driver");
2201 g->property = qemu_opt_get(opts, "property");
2202 g->value = qemu_opt_get(opts, "value");
2203 qdev_prop_register_global(g);
2204 return 0;
2205 }
2206
2207 /*
2208 * Return whether configuration group @group is stored in QemuOpts, or
2209 * recorded as one or more QDicts by qemu_record_config_group.
2210 */
2211 static bool is_qemuopts_group(const char *group)
2212 {
2213 if (g_str_equal(group, "object") ||
2214 g_str_equal(group, "machine") ||
2215 g_str_equal(group, "smp-opts")) {
2216 return false;
2217 }
2218 return true;
2219 }
2220
2221 static void qemu_record_config_group(const char *group, QDict *dict,
2222 bool from_json, Error **errp)
2223 {
2224 if (g_str_equal(group, "object")) {
2225 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2226 object_option_add_visitor(v);
2227 visit_free(v);
2228 } else if (g_str_equal(group, "machine")) {
2229 /*
2230 * Cannot merge string-valued and type-safe dictionaries, so JSON
2231 * is not accepted yet for -M.
2232 */
2233 assert(!from_json);
2234 keyval_merge(machine_opts_dict, dict, errp);
2235 } else if (g_str_equal(group, "smp-opts")) {
2236 machine_merge_property("smp", dict, &error_fatal);
2237 } else {
2238 abort();
2239 }
2240 }
2241
2242 /*
2243 * Parse non-QemuOpts config file groups, pass the rest to
2244 * qemu_config_do_parse.
2245 */
2246 static void qemu_parse_config_group(const char *group, QDict *qdict,
2247 void *opaque, Error **errp)
2248 {
2249 QObject *crumpled;
2250 if (is_qemuopts_group(group)) {
2251 qemu_config_do_parse(group, qdict, opaque, errp);
2252 return;
2253 }
2254
2255 crumpled = qdict_crumple(qdict, errp);
2256 if (!crumpled) {
2257 return;
2258 }
2259 switch (qobject_type(crumpled)) {
2260 case QTYPE_QDICT:
2261 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2262 break;
2263 case QTYPE_QLIST:
2264 error_setg(errp, "Lists cannot be at top level of a configuration section");
2265 break;
2266 default:
2267 g_assert_not_reached();
2268 }
2269 qobject_unref(crumpled);
2270 }
2271
2272 static void qemu_read_default_config_file(Error **errp)
2273 {
2274 ERRP_GUARD();
2275 int ret;
2276 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2277
2278 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2279 if (ret < 0) {
2280 if (ret == -ENOENT) {
2281 error_free(*errp);
2282 *errp = NULL;
2283 }
2284 }
2285 }
2286
2287 static void qemu_set_option(const char *str, Error **errp)
2288 {
2289 char group[64], id[64], arg[64];
2290 QemuOptsList *list;
2291 QemuOpts *opts;
2292 int rc, offset;
2293
2294 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2295 if (rc < 3 || str[offset] != '=') {
2296 error_setg(errp, "can't parse: \"%s\"", str);
2297 return;
2298 }
2299
2300 if (!is_qemuopts_group(group)) {
2301 error_setg(errp, "-set is not supported with %s", group);
2302 } else {
2303 list = qemu_find_opts_err(group, errp);
2304 if (list) {
2305 opts = qemu_opts_find(list, id);
2306 if (!opts) {
2307 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2308 return;
2309 }
2310 qemu_opt_set(opts, arg, str + offset + 1, errp);
2311 }
2312 }
2313 }
2314
2315 static void user_register_global_props(void)
2316 {
2317 qemu_opts_foreach(qemu_find_opts("global"),
2318 global_init_func, NULL, NULL);
2319 }
2320
2321 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2322 {
2323 icount_configure(opts, errp);
2324 return 0;
2325 }
2326
2327 static int accelerator_set_property(void *opaque,
2328 const char *name, const char *value,
2329 Error **errp)
2330 {
2331 return object_parse_property_opt(opaque, name, value, "accel", errp);
2332 }
2333
2334 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2335 {
2336 bool *p_init_failed = opaque;
2337 const char *acc = qemu_opt_get(opts, "accel");
2338 AccelClass *ac = accel_find(acc);
2339 AccelState *accel;
2340 int ret;
2341 bool qtest_with_kvm;
2342
2343 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2344
2345 if (!ac) {
2346 *p_init_failed = true;
2347 if (!qtest_with_kvm) {
2348 error_report("invalid accelerator %s", acc);
2349 }
2350 return 0;
2351 }
2352 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2353 object_apply_compat_props(OBJECT(accel));
2354 qemu_opt_foreach(opts, accelerator_set_property,
2355 accel,
2356 &error_fatal);
2357
2358 ret = accel_init_machine(accel, current_machine);
2359 if (ret < 0) {
2360 *p_init_failed = true;
2361 if (!qtest_with_kvm || ret != -ENOENT) {
2362 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2363 }
2364 return 0;
2365 }
2366
2367 return 1;
2368 }
2369
2370 static void configure_accelerators(const char *progname)
2371 {
2372 bool init_failed = false;
2373
2374 qemu_opts_foreach(qemu_find_opts("icount"),
2375 do_configure_icount, NULL, &error_fatal);
2376
2377 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2378 char **accel_list, **tmp;
2379
2380 if (accelerators == NULL) {
2381 /* Select the default accelerator */
2382 bool have_tcg = accel_find("tcg");
2383 bool have_kvm = accel_find("kvm");
2384
2385 if (have_tcg && have_kvm) {
2386 if (g_str_has_suffix(progname, "kvm")) {
2387 /* If the program name ends with "kvm", we prefer KVM */
2388 accelerators = "kvm:tcg";
2389 } else {
2390 accelerators = "tcg:kvm";
2391 }
2392 } else if (have_kvm) {
2393 accelerators = "kvm";
2394 } else if (have_tcg) {
2395 accelerators = "tcg";
2396 } else {
2397 error_report("No accelerator selected and"
2398 " no default accelerator available");
2399 exit(1);
2400 }
2401 }
2402 accel_list = g_strsplit(accelerators, ":", 0);
2403
2404 for (tmp = accel_list; *tmp; tmp++) {
2405 /*
2406 * Filter invalid accelerators here, to prevent obscenities
2407 * such as "-machine accel=tcg,,thread=single".
2408 */
2409 if (accel_find(*tmp)) {
2410 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2411 } else {
2412 init_failed = true;
2413 error_report("invalid accelerator %s", *tmp);
2414 }
2415 }
2416 g_strfreev(accel_list);
2417 } else {
2418 if (accelerators != NULL) {
2419 error_report("The -accel and \"-machine accel=\" options are incompatible");
2420 exit(1);
2421 }
2422 }
2423
2424 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2425 do_configure_accelerator, &init_failed, &error_fatal)) {
2426 if (!init_failed) {
2427 error_report("no accelerator found");
2428 }
2429 exit(1);
2430 }
2431
2432 if (init_failed && !qtest_chrdev) {
2433 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2434 error_report("falling back to %s", ac->name);
2435 }
2436
2437 if (icount_enabled() && !tcg_enabled()) {
2438 error_report("-icount is not allowed with hardware virtualization");
2439 exit(1);
2440 }
2441 }
2442
2443 static void create_default_memdev(MachineState *ms, const char *path)
2444 {
2445 Object *obj;
2446 MachineClass *mc = MACHINE_GET_CLASS(ms);
2447
2448 obj = object_new(path ? TYPE_MEMORY_BACKEND_FILE : TYPE_MEMORY_BACKEND_RAM);
2449 if (path) {
2450 object_property_set_str(obj, "mem-path", path, &error_fatal);
2451 }
2452 object_property_set_int(obj, "size", ms->ram_size, &error_fatal);
2453 object_property_add_child(object_get_objects_root(), mc->default_ram_id,
2454 obj);
2455 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2456 object_property_set_bool(obj, "x-use-canonical-path-for-ramblock-id",
2457 false, &error_fatal);
2458 user_creatable_complete(USER_CREATABLE(obj), &error_fatal);
2459 object_unref(obj);
2460 object_property_set_str(OBJECT(ms), "memory-backend", mc->default_ram_id,
2461 &error_fatal);
2462 }
2463
2464 static void qemu_validate_options(const QDict *machine_opts)
2465 {
2466 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2467 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2468 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2469
2470 if (kernel_filename == NULL) {
2471 if (kernel_cmdline != NULL) {
2472 error_report("-append only allowed with -kernel option");
2473 exit(1);
2474 }
2475
2476 if (initrd_filename != NULL) {
2477 error_report("-initrd only allowed with -kernel option");
2478 exit(1);
2479 }
2480 }
2481
2482 if (loadvm && preconfig_requested) {
2483 error_report("'preconfig' and 'loadvm' options are "
2484 "mutually exclusive");
2485 exit(EXIT_FAILURE);
2486 }
2487 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2488 error_report("'preconfig' supports '-incoming defer' only");
2489 exit(EXIT_FAILURE);
2490 }
2491
2492 #ifdef CONFIG_CURSES
2493 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2494 error_report("curses display cannot be used with -daemonize");
2495 exit(1);
2496 }
2497 #endif
2498 }
2499
2500 static void qemu_process_sugar_options(void)
2501 {
2502 if (mem_prealloc) {
2503 QObject *smp = qdict_get(machine_opts_dict, "smp");
2504 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2505 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2506 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2507 const char *val = qstring_get_str(qobject_to(QString, cpus));
2508 object_register_sugar_prop("memory-backend", "prealloc-threads",
2509 val, false);
2510 }
2511 }
2512 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2513 }
2514
2515 if (watchdog) {
2516 int i = select_watchdog(watchdog);
2517 if (i > 0)
2518 exit (i == 1 ? 1 : 0);
2519 }
2520 }
2521
2522 /* -action processing */
2523
2524 /*
2525 * Process all the -action parameters parsed from cmdline.
2526 */
2527 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2528 {
2529 Error *local_err = NULL;
2530 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2531 QObject *ret = NULL;
2532 qmp_marshal_set_action(qdict, &ret, &local_err);
2533 qobject_unref(ret);
2534 qobject_unref(qdict);
2535 if (local_err) {
2536 error_propagate(errp, local_err);
2537 return 1;
2538 }
2539 return 0;
2540 }
2541
2542 static void qemu_process_early_options(void)
2543 {
2544 #ifdef CONFIG_SECCOMP
2545 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2546 if (olist) {
2547 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2548 }
2549 #endif
2550
2551 qemu_opts_foreach(qemu_find_opts("name"),
2552 parse_name, NULL, &error_fatal);
2553
2554 if (qemu_opts_foreach(qemu_find_opts("action"),
2555 process_runstate_actions, NULL, &error_fatal)) {
2556 exit(1);
2557 }
2558
2559 #ifndef _WIN32
2560 qemu_opts_foreach(qemu_find_opts("add-fd"),
2561 parse_add_fd, NULL, &error_fatal);
2562
2563 qemu_opts_foreach(qemu_find_opts("add-fd"),
2564 cleanup_add_fd, NULL, &error_fatal);
2565 #endif
2566
2567 /* Open the logfile at this point and set the log mask if necessary. */
2568 {
2569 int mask = 0;
2570 if (log_mask) {
2571 mask = qemu_str_to_log_mask(log_mask);
2572 if (!mask) {
2573 qemu_print_log_usage(stdout);
2574 exit(1);
2575 }
2576 }
2577 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2578 }
2579
2580 qemu_add_default_firmwarepath();
2581 }
2582
2583 static void qemu_process_help_options(void)
2584 {
2585 /*
2586 * Check for -cpu help and -device help before we call select_machine(),
2587 * which will return an error if the architecture has no default machine
2588 * type and the user did not specify one, so that the user doesn't need
2589 * to say '-cpu help -machine something'.
2590 */
2591 if (cpu_option && is_help_option(cpu_option)) {
2592 list_cpus(cpu_option);
2593 exit(0);
2594 }
2595
2596 if (qemu_opts_foreach(qemu_find_opts("device"),
2597 device_help_func, NULL, NULL)) {
2598 exit(0);
2599 }
2600
2601 /* -L help lists the data directories and exits. */
2602 if (list_data_dirs) {
2603 qemu_list_data_dirs();
2604 exit(0);
2605 }
2606 }
2607
2608 static void qemu_maybe_daemonize(const char *pid_file)
2609 {
2610 Error *err = NULL;
2611
2612 os_daemonize();
2613 rcu_disable_atfork();
2614
2615 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
2616 error_reportf_err(err, "cannot create PID file: ");
2617 exit(1);
2618 }
2619
2620 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
2621 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
2622 }
2623
2624 static void qemu_init_displays(void)
2625 {
2626 DisplayState *ds;
2627
2628 /* init local displays */
2629 ds = init_displaystate();
2630 qemu_display_init(ds, &dpy);
2631
2632 /* must be after terminal init, SDL library changes signal handlers */
2633 os_setup_signal_handling();
2634
2635 /* init remote displays */
2636 #ifdef CONFIG_VNC
2637 qemu_opts_foreach(qemu_find_opts("vnc"),
2638 vnc_init_func, NULL, &error_fatal);
2639 #endif
2640
2641 if (using_spice) {
2642 qemu_spice.display_init();
2643 }
2644 }
2645
2646 static void qemu_init_board(void)
2647 {
2648 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
2649
2650 if (machine_class->default_ram_id && current_machine->ram_size &&
2651 numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
2652 create_default_memdev(current_machine, mem_path);
2653 }
2654
2655 /* process plugin before CPUs are created, but once -smp has been parsed */
2656 qemu_plugin_load_list(&plugin_list, &error_fatal);
2657
2658 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2659 machine_run_board_init(current_machine);
2660
2661 drive_check_orphaned();
2662
2663 realtime_init();
2664
2665 if (hax_enabled()) {
2666 /* FIXME: why isn't cpu_synchronize_all_post_init enough? */
2667 hax_sync_vcpus();
2668 }
2669 }
2670
2671 static void qemu_create_cli_devices(void)
2672 {
2673 DeviceOption *opt;
2674
2675 soundhw_init();
2676
2677 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2678 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2679
2680 /* init USB devices */
2681 if (machine_usb(current_machine)) {
2682 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2683 exit(1);
2684 }
2685
2686 /* init generic devices */
2687 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2688 qemu_opts_foreach(qemu_find_opts("device"),
2689 device_init_func, NULL, &error_fatal);
2690 QTAILQ_FOREACH(opt, &device_opts, next) {
2691 DeviceState *dev;
2692 loc_push_restore(&opt->loc);
2693 /*
2694 * TODO Eventually we should call qmp_device_add() here to make sure it
2695 * behaves the same, but QMP still has to accept incorrectly typed
2696 * options until libvirt is fixed and we want to be strict on the CLI
2697 * from the start, so call qdev_device_add_from_qdict() directly for
2698 * now.
2699 */
2700 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2701 object_unref(OBJECT(dev));
2702 loc_pop(&opt->loc);
2703 }
2704 rom_reset_order_override();
2705 }
2706
2707 static void qemu_machine_creation_done(void)
2708 {
2709 MachineState *machine = MACHINE(qdev_get_machine());
2710
2711 /* Did we create any drives that we failed to create a device for? */
2712 drive_check_orphaned();
2713
2714 /* Don't warn about the default network setup that you get if
2715 * no command line -net or -netdev options are specified. There
2716 * are two cases that we would otherwise complain about:
2717 * (1) board doesn't support a NIC but the implicit "-net nic"
2718 * requested one
2719 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2720 * sets up a nic that isn't connected to anything.
2721 */
2722 if (!default_net && (!qtest_enabled() || has_defaults)) {
2723 net_check_clients();
2724 }
2725
2726 qdev_prop_check_globals();
2727
2728 qdev_machine_creation_done();
2729
2730 if (machine->cgs) {
2731 /*
2732 * Verify that Confidential Guest Support has actually been initialized
2733 */
2734 assert(machine->cgs->ready);
2735 }
2736
2737 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2738 exit(1);
2739 }
2740 if (!vga_interface_created && !default_vga &&
2741 vga_interface_type != VGA_NONE) {
2742 warn_report("A -vga option was passed but this machine "
2743 "type does not use that option; "
2744 "No VGA device has been created");
2745 }
2746 }
2747
2748 void qmp_x_exit_preconfig(Error **errp)
2749 {
2750 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2751 error_setg(errp, "The command is permitted only before machine initialization");
2752 return;
2753 }
2754
2755 qemu_init_board();
2756 qemu_create_cli_devices();
2757 qemu_machine_creation_done();
2758
2759 if (loadvm) {
2760 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2761 }
2762 if (replay_mode != REPLAY_MODE_NONE) {
2763 replay_vmstate_init();
2764 }
2765
2766 if (incoming) {
2767 Error *local_err = NULL;
2768 if (strcmp(incoming, "defer") != 0) {
2769 qmp_migrate_incoming(incoming, &local_err);
2770 if (local_err) {
2771 error_reportf_err(local_err, "-incoming %s: ", incoming);
2772 exit(1);
2773 }
2774 }
2775 } else if (autostart) {
2776 qmp_cont(NULL);
2777 }
2778 }
2779
2780 void qemu_init(int argc, char **argv, char **envp)
2781 {
2782 QemuOpts *opts;
2783 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2784 QemuOptsList *olist;
2785 int optind;
2786 const char *optarg;
2787 MachineClass *machine_class;
2788 bool userconfig = true;
2789 FILE *vmstate_dump_file = NULL;
2790
2791 qemu_add_opts(&qemu_drive_opts);
2792 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2793 qemu_add_drive_opts(&qemu_common_drive_opts);
2794 qemu_add_drive_opts(&qemu_drive_opts);
2795 qemu_add_drive_opts(&bdrv_runtime_opts);
2796 qemu_add_opts(&qemu_chardev_opts);
2797 qemu_add_opts(&qemu_device_opts);
2798 qemu_add_opts(&qemu_netdev_opts);
2799 qemu_add_opts(&qemu_nic_opts);
2800 qemu_add_opts(&qemu_net_opts);
2801 qemu_add_opts(&qemu_rtc_opts);
2802 qemu_add_opts(&qemu_global_opts);
2803 qemu_add_opts(&qemu_mon_opts);
2804 qemu_add_opts(&qemu_trace_opts);
2805 qemu_plugin_add_opts();
2806 qemu_add_opts(&qemu_option_rom_opts);
2807 qemu_add_opts(&qemu_accel_opts);
2808 qemu_add_opts(&qemu_mem_opts);
2809 qemu_add_opts(&qemu_smp_opts);
2810 qemu_add_opts(&qemu_boot_opts);
2811 qemu_add_opts(&qemu_add_fd_opts);
2812 qemu_add_opts(&qemu_object_opts);
2813 qemu_add_opts(&qemu_tpmdev_opts);
2814 qemu_add_opts(&qemu_overcommit_opts);
2815 qemu_add_opts(&qemu_msg_opts);
2816 qemu_add_opts(&qemu_name_opts);
2817 qemu_add_opts(&qemu_numa_opts);
2818 qemu_add_opts(&qemu_icount_opts);
2819 qemu_add_opts(&qemu_semihosting_config_opts);
2820 qemu_add_opts(&qemu_fw_cfg_opts);
2821 qemu_add_opts(&qemu_action_opts);
2822 module_call_init(MODULE_INIT_OPTS);
2823
2824 error_init(argv[0]);
2825 qemu_init_exec_dir(argv[0]);
2826
2827 qemu_init_arch_modules();
2828
2829 qemu_init_subsystems();
2830
2831 /* first pass of option parsing */
2832 optind = 1;
2833 while (optind < argc) {
2834 if (argv[optind][0] != '-') {
2835 /* disk image */
2836 optind++;
2837 } else {
2838 const QEMUOption *popt;
2839
2840 popt = lookup_opt(argc, argv, &optarg, &optind);
2841 switch (popt->index) {
2842 case QEMU_OPTION_nouserconfig:
2843 userconfig = false;
2844 break;
2845 }
2846 }
2847 }
2848
2849 machine_opts_dict = qdict_new();
2850 if (userconfig) {
2851 qemu_read_default_config_file(&error_fatal);
2852 }
2853
2854 /* second pass of option parsing */
2855 optind = 1;
2856 for(;;) {
2857 if (optind >= argc)
2858 break;
2859 if (argv[optind][0] != '-') {
2860 loc_set_cmdline(argv, optind, 1);
2861 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2862 } else {
2863 const QEMUOption *popt;
2864
2865 popt = lookup_opt(argc, argv, &optarg, &optind);
2866 if (!(popt->arch_mask & arch_type)) {
2867 error_report("Option not supported for this target");
2868 exit(1);
2869 }
2870 switch(popt->index) {
2871 case QEMU_OPTION_cpu:
2872 /* hw initialization will check this */
2873 cpu_option = optarg;
2874 break;
2875 case QEMU_OPTION_hda:
2876 case QEMU_OPTION_hdb:
2877 case QEMU_OPTION_hdc:
2878 case QEMU_OPTION_hdd:
2879 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2880 HD_OPTS);
2881 break;
2882 case QEMU_OPTION_blockdev:
2883 {
2884 Visitor *v;
2885 BlockdevOptionsQueueEntry *bdo;
2886
2887 v = qobject_input_visitor_new_str(optarg, "driver",
2888 &error_fatal);
2889
2890 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2891 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2892 &error_fatal);
2893 visit_free(v);
2894 loc_save(&bdo->loc);
2895 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2896 break;
2897 }
2898 case QEMU_OPTION_drive:
2899 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2900 optarg, false);
2901 if (opts == NULL) {
2902 exit(1);
2903 }
2904 break;
2905 case QEMU_OPTION_set:
2906 qemu_set_option(optarg, &error_fatal);
2907 break;
2908 case QEMU_OPTION_global:
2909 if (qemu_global_option(optarg) != 0)
2910 exit(1);
2911 break;
2912 case QEMU_OPTION_mtdblock:
2913 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2914 break;
2915 case QEMU_OPTION_sd:
2916 drive_add(IF_SD, -1, optarg, SD_OPTS);
2917 break;
2918 case QEMU_OPTION_pflash:
2919 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2920 break;
2921 case QEMU_OPTION_snapshot:
2922 {
2923 Error *blocker = NULL;
2924 snapshot = 1;
2925 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
2926 "-snapshot");
2927 replay_add_blocker(blocker);
2928 }
2929 break;
2930 case QEMU_OPTION_numa:
2931 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2932 optarg, true);
2933 if (!opts) {
2934 exit(1);
2935 }
2936 break;
2937 case QEMU_OPTION_display:
2938 parse_display(optarg);
2939 break;
2940 case QEMU_OPTION_nographic:
2941 qdict_put_str(machine_opts_dict, "graphics", "off");
2942 nographic = true;
2943 dpy.type = DISPLAY_TYPE_NONE;
2944 break;
2945 case QEMU_OPTION_curses:
2946 warn_report("-curses is deprecated, "
2947 "use -display curses instead.");
2948 #ifdef CONFIG_CURSES
2949 dpy.type = DISPLAY_TYPE_CURSES;
2950 #else
2951 error_report("curses or iconv support is disabled");
2952 exit(1);
2953 #endif
2954 break;
2955 case QEMU_OPTION_portrait:
2956 graphic_rotate = 90;
2957 break;
2958 case QEMU_OPTION_rotate:
2959 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2960 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2961 graphic_rotate != 180 && graphic_rotate != 270) {
2962 error_report("only 90, 180, 270 deg rotation is available");
2963 exit(1);
2964 }
2965 break;
2966 case QEMU_OPTION_kernel:
2967 qdict_put_str(machine_opts_dict, "kernel", optarg);
2968 break;
2969 case QEMU_OPTION_initrd:
2970 qdict_put_str(machine_opts_dict, "initrd", optarg);
2971 break;
2972 case QEMU_OPTION_append:
2973 qdict_put_str(machine_opts_dict, "append", optarg);
2974 break;
2975 case QEMU_OPTION_dtb:
2976 qdict_put_str(machine_opts_dict, "dtb", optarg);
2977 break;
2978 case QEMU_OPTION_cdrom:
2979 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2980 break;
2981 case QEMU_OPTION_boot:
2982 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
2983 optarg, true);
2984 if (!opts) {
2985 exit(1);
2986 }
2987 break;
2988 case QEMU_OPTION_fda:
2989 case QEMU_OPTION_fdb:
2990 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2991 optarg, FD_OPTS);
2992 break;
2993 case QEMU_OPTION_no_fd_bootchk:
2994 fd_bootchk = 0;
2995 break;
2996 case QEMU_OPTION_netdev:
2997 default_net = 0;
2998 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2999 exit(1);
3000 }
3001 break;
3002 case QEMU_OPTION_nic:
3003 default_net = 0;
3004 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3005 exit(1);
3006 }
3007 break;
3008 case QEMU_OPTION_net:
3009 default_net = 0;
3010 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3011 exit(1);
3012 }
3013 break;
3014 #ifdef CONFIG_LIBISCSI
3015 case QEMU_OPTION_iscsi:
3016 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3017 optarg, false);
3018 if (!opts) {
3019 exit(1);
3020 }
3021 break;
3022 #endif
3023 case QEMU_OPTION_audio_help:
3024 audio_legacy_help();
3025 exit (0);
3026 break;
3027 case QEMU_OPTION_audiodev:
3028 audio_parse_option(optarg);
3029 break;
3030 case QEMU_OPTION_soundhw:
3031 select_soundhw (optarg);
3032 break;
3033 case QEMU_OPTION_h:
3034 help(0);
3035 break;
3036 case QEMU_OPTION_version:
3037 version();
3038 exit(0);
3039 break;
3040 case QEMU_OPTION_m:
3041 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3042 optarg, true);
3043 if (!opts) {
3044 exit(EXIT_FAILURE);
3045 }
3046 break;
3047 #ifdef CONFIG_TPM
3048 case QEMU_OPTION_tpmdev:
3049 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3050 exit(1);
3051 }
3052 break;
3053 #endif
3054 case QEMU_OPTION_mempath:
3055 mem_path = optarg;
3056 break;
3057 case QEMU_OPTION_mem_prealloc:
3058 mem_prealloc = 1;
3059 break;
3060 case QEMU_OPTION_d:
3061 log_mask = optarg;
3062 break;
3063 case QEMU_OPTION_D:
3064 log_file = optarg;
3065 break;
3066 case QEMU_OPTION_DFILTER:
3067 qemu_set_dfilter_ranges(optarg, &error_fatal);
3068 break;
3069 case QEMU_OPTION_seed:
3070 qemu_guest_random_seed_main(optarg, &error_fatal);
3071 break;
3072 case QEMU_OPTION_s:
3073 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3074 break;
3075 case QEMU_OPTION_gdb:
3076 add_device_config(DEV_GDB, optarg);
3077 break;
3078 case QEMU_OPTION_L:
3079 if (is_help_option(optarg)) {
3080 list_data_dirs = true;
3081 } else {
3082 qemu_add_data_dir(g_strdup(optarg));
3083 }
3084 break;
3085 case QEMU_OPTION_bios:
3086 qdict_put_str(machine_opts_dict, "firmware", optarg);
3087 break;
3088 case QEMU_OPTION_singlestep:
3089 singlestep = 1;
3090 break;
3091 case QEMU_OPTION_S:
3092 autostart = 0;
3093 break;
3094 case QEMU_OPTION_k:
3095 keyboard_layout = optarg;
3096 break;
3097 case QEMU_OPTION_vga:
3098 vga_model = optarg;
3099 default_vga = 0;
3100 break;
3101 case QEMU_OPTION_g:
3102 {
3103 const char *p;
3104 int w, h, depth;
3105 p = optarg;
3106 w = strtol(p, (char **)&p, 10);
3107 if (w <= 0) {
3108 graphic_error:
3109 error_report("invalid resolution or depth");
3110 exit(1);
3111 }
3112 if (*p != 'x')
3113 goto graphic_error;
3114 p++;
3115 h = strtol(p, (char **)&p, 10);
3116 if (h <= 0)
3117 goto graphic_error;
3118 if (*p == 'x') {
3119 p++;
3120 depth = strtol(p, (char **)&p, 10);
3121 if (depth != 1 && depth != 2 && depth != 4 &&
3122 depth != 8 && depth != 15 && depth != 16 &&
3123 depth != 24 && depth != 32)
3124 goto graphic_error;
3125 } else if (*p == '\0') {
3126 depth = graphic_depth;
3127 } else {
3128 goto graphic_error;
3129 }
3130
3131 graphic_width = w;
3132 graphic_height = h;
3133 graphic_depth = depth;
3134 }
3135 break;
3136 case QEMU_OPTION_echr:
3137 {
3138 char *r;
3139 term_escape_char = strtol(optarg, &r, 0);
3140 if (r == optarg)
3141 printf("Bad argument to echr\n");
3142 break;
3143 }
3144 case QEMU_OPTION_monitor:
3145 default_monitor = 0;
3146 if (strncmp(optarg, "none", 4)) {
3147 monitor_parse(optarg, "readline", false);
3148 }
3149 break;
3150 case QEMU_OPTION_qmp:
3151 monitor_parse(optarg, "control", false);
3152 default_monitor = 0;
3153 break;
3154 case QEMU_OPTION_qmp_pretty:
3155 monitor_parse(optarg, "control", true);
3156 default_monitor = 0;
3157 break;
3158 case QEMU_OPTION_mon:
3159 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3160 true);
3161 if (!opts) {
3162 exit(1);
3163 }
3164 default_monitor = 0;
3165 break;
3166 case QEMU_OPTION_chardev:
3167 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3168 optarg, true);
3169 if (!opts) {
3170 exit(1);
3171 }
3172 break;
3173 case QEMU_OPTION_fsdev:
3174 olist = qemu_find_opts("fsdev");
3175 if (!olist) {
3176 error_report("fsdev support is disabled");
3177 exit(1);
3178 }
3179 opts = qemu_opts_parse_noisily(olist, optarg, true);
3180 if (!opts) {
3181 exit(1);
3182 }
3183 break;
3184 case QEMU_OPTION_virtfs: {
3185 QemuOpts *fsdev;
3186 QemuOpts *device;
3187 const char *writeout, *sock_fd, *socket, *path, *security_model,
3188 *multidevs;
3189
3190 olist = qemu_find_opts("virtfs");
3191 if (!olist) {
3192 error_report("virtfs support is disabled");
3193 exit(1);
3194 }
3195 opts = qemu_opts_parse_noisily(olist, optarg, true);
3196 if (!opts) {
3197 exit(1);
3198 }
3199
3200 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3201 qemu_opt_get(opts, "mount_tag") == NULL) {
3202 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3203 exit(1);
3204 }
3205 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3206 qemu_opts_id(opts) ?:
3207 qemu_opt_get(opts, "mount_tag"),
3208 1, NULL);
3209 if (!fsdev) {
3210 error_report("duplicate or invalid fsdev id: %s",
3211 qemu_opt_get(opts, "mount_tag"));
3212 exit(1);
3213 }
3214
3215 writeout = qemu_opt_get(opts, "writeout");
3216 if (writeout) {
3217 #ifdef CONFIG_SYNC_FILE_RANGE
3218 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3219 #else
3220 error_report("writeout=immediate not supported "
3221 "on this platform");
3222 exit(1);
3223 #endif
3224 }
3225 qemu_opt_set(fsdev, "fsdriver",
3226 qemu_opt_get(opts, "fsdriver"), &error_abort);
3227 path = qemu_opt_get(opts, "path");
3228 if (path) {
3229 qemu_opt_set(fsdev, "path", path, &error_abort);
3230 }
3231 security_model = qemu_opt_get(opts, "security_model");
3232 if (security_model) {
3233 qemu_opt_set(fsdev, "security_model", security_model,
3234 &error_abort);
3235 }
3236 socket = qemu_opt_get(opts, "socket");
3237 if (socket) {
3238 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3239 }
3240 sock_fd = qemu_opt_get(opts, "sock_fd");
3241 if (sock_fd) {
3242 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3243 }
3244
3245 qemu_opt_set_bool(fsdev, "readonly",
3246 qemu_opt_get_bool(opts, "readonly", 0),
3247 &error_abort);
3248 multidevs = qemu_opt_get(opts, "multidevs");
3249 if (multidevs) {
3250 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3251 }
3252 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3253 &error_abort);
3254 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3255 qemu_opt_set(device, "fsdev",
3256 qemu_opts_id(fsdev), &error_abort);
3257 qemu_opt_set(device, "mount_tag",
3258 qemu_opt_get(opts, "mount_tag"), &error_abort);
3259 break;
3260 }
3261 case QEMU_OPTION_serial:
3262 add_device_config(DEV_SERIAL, optarg);
3263 default_serial = 0;
3264 if (strncmp(optarg, "mon:", 4) == 0) {
3265 default_monitor = 0;
3266 }
3267 break;
3268 case QEMU_OPTION_watchdog:
3269 if (watchdog) {
3270 error_report("only one watchdog option may be given");
3271 exit(1);
3272 }
3273 warn_report("-watchdog is deprecated; use -device instead.");
3274 watchdog = optarg;
3275 break;
3276 case QEMU_OPTION_action:
3277 olist = qemu_find_opts("action");
3278 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3279 exit(1);
3280 }
3281 break;
3282 case QEMU_OPTION_watchdog_action: {
3283 QemuOpts *opts;
3284 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3285 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3286 break;
3287 }
3288 case QEMU_OPTION_parallel:
3289 add_device_config(DEV_PARALLEL, optarg);
3290 default_parallel = 0;
3291 if (strncmp(optarg, "mon:", 4) == 0) {
3292 default_monitor = 0;
3293 }
3294 break;
3295 case QEMU_OPTION_debugcon:
3296 add_device_config(DEV_DEBUGCON, optarg);
3297 break;
3298 case QEMU_OPTION_loadvm:
3299 loadvm = optarg;
3300 break;
3301 case QEMU_OPTION_full_screen:
3302 dpy.has_full_screen = true;
3303 dpy.full_screen = true;
3304 break;
3305 case QEMU_OPTION_alt_grab:
3306 alt_grab = 1;
3307 warn_report("-alt-grab is deprecated, please use "
3308 "-display sdl,grab-mod=lshift-lctrl-lalt instead.");
3309 break;
3310 case QEMU_OPTION_ctrl_grab:
3311 ctrl_grab = 1;
3312 warn_report("-ctrl-grab is deprecated, please use "
3313 "-display sdl,grab-mod=rctrl instead.");
3314 break;
3315 case QEMU_OPTION_sdl:
3316 warn_report("-sdl is deprecated, use -display sdl instead.");
3317 #ifdef CONFIG_SDL
3318 dpy.type = DISPLAY_TYPE_SDL;
3319 break;
3320 #else
3321 error_report("SDL support is disabled");
3322 exit(1);
3323 #endif
3324 case QEMU_OPTION_pidfile:
3325 pid_file = optarg;
3326 break;
3327 case QEMU_OPTION_win2k_hack:
3328 win2k_install_hack = 1;
3329 break;
3330 case QEMU_OPTION_acpitable:
3331 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3332 optarg, true);
3333 if (!opts) {
3334 exit(1);
3335 }
3336 acpi_table_add(opts, &error_fatal);
3337 break;
3338 case QEMU_OPTION_smbios:
3339 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3340 optarg, false);
3341 if (!opts) {
3342 exit(1);
3343 }
3344 smbios_entry_add(opts, &error_fatal);
3345 break;
3346 case QEMU_OPTION_fwcfg:
3347 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3348 optarg, true);
3349 if (opts == NULL) {
3350 exit(1);
3351 }
3352 break;
3353 case QEMU_OPTION_preconfig:
3354 preconfig_requested = true;
3355 break;
3356 case QEMU_OPTION_enable_kvm:
3357 qdict_put_str(machine_opts_dict, "accel", "kvm");
3358 break;
3359 case QEMU_OPTION_M:
3360 case QEMU_OPTION_machine:
3361 {
3362 bool help;
3363
3364 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3365 if (help) {
3366 machine_help_func(machine_opts_dict);
3367 exit(EXIT_SUCCESS);
3368 }
3369 break;
3370 }
3371 case QEMU_OPTION_accel:
3372 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3373 optarg, true);
3374 optarg = qemu_opt_get(accel_opts, "accel");
3375 if (!optarg || is_help_option(optarg)) {
3376 printf("Accelerators supported in QEMU binary:\n");
3377 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3378 false);
3379 for (el = accel_list; el; el = el->next) {
3380 gchar *typename = g_strdup(object_class_get_name(
3381 OBJECT_CLASS(el->data)));
3382 /* omit qtest which is used for tests only */
3383 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3384 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3385 gchar **optname = g_strsplit(typename,
3386 ACCEL_CLASS_SUFFIX, 0);
3387 printf("%s\n", optname[0]);
3388 g_strfreev(optname);
3389 }
3390 g_free(typename);
3391 }
3392 g_slist_free(accel_list);
3393 exit(0);
3394 }
3395 break;
3396 case QEMU_OPTION_usb:
3397 qdict_put_str(machine_opts_dict, "usb", "on");
3398 break;
3399 case QEMU_OPTION_usbdevice:
3400 qdict_put_str(machine_opts_dict, "usb", "on");
3401 add_device_config(DEV_USB, optarg);
3402 break;
3403 case QEMU_OPTION_device:
3404 if (optarg[0] == '{') {
3405 QObject *obj = qobject_from_json(optarg, &error_fatal);
3406 DeviceOption *opt = g_new0(DeviceOption, 1);
3407 opt->opts = qobject_to(QDict, obj);
3408 loc_save(&opt->loc);
3409 assert(opt->opts != NULL);
3410 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3411 } else {
3412 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3413 optarg, true)) {
3414 exit(1);
3415 }
3416 }
3417 break;
3418 case QEMU_OPTION_smp:
3419 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3420 "smp", optarg);
3421 break;
3422 case QEMU_OPTION_vnc:
3423 vnc_parse(optarg);
3424 break;
3425 case QEMU_OPTION_no_acpi:
3426 qdict_put_str(machine_opts_dict, "acpi", "off");
3427 break;
3428 case QEMU_OPTION_no_hpet:
3429 qdict_put_str(machine_opts_dict, "hpet", "off");
3430 break;
3431 case QEMU_OPTION_no_reboot:
3432 olist = qemu_find_opts("action");
3433 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3434 break;
3435 case QEMU_OPTION_no_shutdown:
3436 olist = qemu_find_opts("action");
3437 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3438 break;
3439 case QEMU_OPTION_uuid:
3440 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3441 error_report("failed to parse UUID string: wrong format");
3442 exit(1);
3443 }
3444 qemu_uuid_set = true;
3445 break;
3446 case QEMU_OPTION_option_rom:
3447 if (nb_option_roms >= MAX_OPTION_ROMS) {
3448 error_report("too many option ROMs");
3449 exit(1);
3450 }
3451 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3452 optarg, true);
3453 if (!opts) {
3454 exit(1);
3455 }
3456 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3457 option_rom[nb_option_roms].bootindex =
3458 qemu_opt_get_number(opts, "bootindex", -1);
3459 if (!option_rom[nb_option_roms].name) {
3460 error_report("Option ROM file is not specified");
3461 exit(1);
3462 }
3463 nb_option_roms++;
3464 break;
3465 case QEMU_OPTION_semihosting:
3466 qemu_semihosting_enable();
3467 break;
3468 case QEMU_OPTION_semihosting_config:
3469 if (qemu_semihosting_config_options(optarg) != 0) {
3470 exit(1);
3471 }
3472 break;
3473 case QEMU_OPTION_name:
3474 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3475 optarg, true);
3476 if (!opts) {
3477 exit(1);
3478 }
3479 /* Capture guest name if -msg guest-name is used later */
3480 error_guest_name = qemu_opt_get(opts, "guest");
3481 break;
3482 case QEMU_OPTION_prom_env:
3483 if (nb_prom_envs >= MAX_PROM_ENVS) {
3484 error_report("too many prom variables");
3485 exit(1);
3486 }
3487 prom_envs[nb_prom_envs] = optarg;
3488 nb_prom_envs++;
3489 break;
3490 case QEMU_OPTION_old_param:
3491 old_param = 1;
3492 break;
3493 case QEMU_OPTION_rtc:
3494 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3495 false);
3496 if (!opts) {
3497 exit(1);
3498 }
3499 break;
3500 case QEMU_OPTION_icount:
3501 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3502 optarg, true);
3503 if (!icount_opts) {
3504 exit(1);
3505 }
3506 break;
3507 case QEMU_OPTION_incoming:
3508 if (!incoming) {
3509 runstate_set(RUN_STATE_INMIGRATE);
3510 }
3511 incoming = optarg;
3512 break;
3513 case QEMU_OPTION_only_migratable:
3514 only_migratable = 1;
3515 break;
3516 case QEMU_OPTION_nodefaults:
3517 has_defaults = 0;
3518 break;
3519 case QEMU_OPTION_xen_domid:
3520 if (!(accel_find("xen"))) {
3521 error_report("Option not supported for this target");
3522 exit(1);
3523 }
3524 xen_domid = atoi(optarg);
3525 break;
3526 case QEMU_OPTION_xen_attach:
3527 if (!(accel_find("xen"))) {
3528 error_report("Option not supported for this target");
3529 exit(1);
3530 }
3531 xen_mode = XEN_ATTACH;
3532 break;
3533 case QEMU_OPTION_xen_domid_restrict:
3534 if (!(accel_find("xen"))) {
3535 error_report("Option not supported for this target");
3536 exit(1);
3537 }
3538 xen_domid_restrict = true;
3539 break;
3540 case QEMU_OPTION_trace:
3541 trace_opt_parse(optarg);
3542 break;
3543 case QEMU_OPTION_plugin:
3544 qemu_plugin_opt_parse(optarg, &plugin_list);
3545 break;
3546 case QEMU_OPTION_readconfig:
3547 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3548 break;
3549 #ifdef CONFIG_SPICE
3550 case QEMU_OPTION_spice:
3551 olist = qemu_find_opts_err("spice", NULL);
3552 if (!olist) {
3553 error_report("spice support is disabled");
3554 exit(1);
3555 }
3556 opts = qemu_opts_parse_noisily(olist, optarg, false);
3557 if (!opts) {
3558 exit(1);
3559 }
3560 display_remote++;
3561 break;
3562 #endif
3563 case QEMU_OPTION_qtest:
3564 qtest_chrdev = optarg;
3565 break;
3566 case QEMU_OPTION_qtest_log:
3567 qtest_log = optarg;
3568 break;
3569 case QEMU_OPTION_sandbox:
3570 olist = qemu_find_opts("sandbox");
3571 if (!olist) {
3572 #ifndef CONFIG_SECCOMP
3573 error_report("-sandbox support is not enabled "
3574 "in this QEMU binary");
3575 #endif
3576 exit(1);
3577 }
3578
3579 opts = qemu_opts_parse_noisily(olist, optarg, true);
3580 if (!opts) {
3581 exit(1);
3582 }
3583 break;
3584 case QEMU_OPTION_add_fd:
3585 #ifndef _WIN32
3586 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3587 optarg, false);
3588 if (!opts) {
3589 exit(1);
3590 }
3591 #else
3592 error_report("File descriptor passing is disabled on this "
3593 "platform");
3594 exit(1);
3595 #endif
3596 break;
3597 case QEMU_OPTION_object:
3598 object_option_parse(optarg);
3599 break;
3600 case QEMU_OPTION_overcommit:
3601 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3602 optarg, false);
3603 if (!opts) {
3604 exit(1);
3605 }
3606 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3607 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3608 break;
3609 case QEMU_OPTION_compat:
3610 {
3611 CompatPolicy *opts;
3612 Visitor *v;
3613
3614 v = qobject_input_visitor_new_str(optarg, NULL,
3615 &error_fatal);
3616
3617 visit_type_CompatPolicy(v, NULL, &opts, &error_fatal);
3618 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts);
3619
3620 qapi_free_CompatPolicy(opts);
3621 visit_free(v);
3622 break;
3623 }
3624 case QEMU_OPTION_msg:
3625 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3626 false);
3627 if (!opts) {
3628 exit(1);
3629 }
3630 configure_msg(opts);
3631 break;
3632 case QEMU_OPTION_dump_vmstate:
3633 if (vmstate_dump_file) {
3634 error_report("only one '-dump-vmstate' "
3635 "option may be given");
3636 exit(1);
3637 }
3638 vmstate_dump_file = fopen(optarg, "w");
3639 if (vmstate_dump_file == NULL) {
3640 error_report("open %s: %s", optarg, strerror(errno));
3641 exit(1);
3642 }
3643 break;
3644 case QEMU_OPTION_enable_sync_profile:
3645 qsp_enable();
3646 break;
3647 case QEMU_OPTION_nouserconfig:
3648 /* Nothing to be parsed here. Especially, do not error out below. */
3649 break;
3650 default:
3651 if (os_parse_cmd_args(popt->index, optarg)) {
3652 error_report("Option not supported in this build");
3653 exit(1);
3654 }
3655 }
3656 }
3657 }
3658 /*
3659 * Clear error location left behind by the loop.
3660 * Best done right after the loop. Do not insert code here!
3661 */
3662 loc_set_none();
3663
3664 qemu_validate_options(machine_opts_dict);
3665 qemu_process_sugar_options();
3666
3667 /*
3668 * These options affect everything else and should be processed
3669 * before daemonizing.
3670 */
3671 qemu_process_early_options();
3672
3673 qemu_process_help_options();
3674 qemu_maybe_daemonize(pid_file);
3675
3676 /*
3677 * The trace backend must be initialized after daemonizing.
3678 * trace_init_backends() will call st_init(), which will create the
3679 * trace thread in the parent, and also register st_flush_trace_buffer()
3680 * in atexit(). This function will force the parent to wait for the
3681 * writeout thread to finish, which will not occur, and the parent
3682 * process will be left in the host.
3683 */
3684 if (!trace_init_backends()) {
3685 exit(1);
3686 }
3687 trace_init_file();
3688
3689 qemu_init_main_loop(&error_fatal);
3690 cpu_timers_init();
3691
3692 user_register_global_props();
3693 replay_configure(icount_opts);
3694
3695 configure_rtc(qemu_find_opts_singleton("rtc"));
3696
3697 qemu_create_machine(machine_opts_dict);
3698
3699 suspend_mux_open();
3700
3701 qemu_disable_default_devices();
3702 qemu_create_default_devices();
3703 qemu_create_early_backends();
3704
3705 qemu_apply_legacy_machine_options(machine_opts_dict);
3706 qemu_apply_machine_options(machine_opts_dict);
3707 qobject_unref(machine_opts_dict);
3708 phase_advance(PHASE_MACHINE_CREATED);
3709
3710 /*
3711 * Note: uses machine properties such as kernel-irqchip, must run
3712 * after qemu_apply_machine_options.
3713 */
3714 configure_accelerators(argv[0]);
3715 phase_advance(PHASE_ACCEL_CREATED);
3716
3717 /*
3718 * Beware, QOM objects created before this point miss global and
3719 * compat properties.
3720 *
3721 * Global properties get set up by qdev_prop_register_global(),
3722 * called from user_register_global_props(), and certain option
3723 * desugaring. Also in CPU feature desugaring (buried in
3724 * parse_cpu_option()), which happens below this point, but may
3725 * only target the CPU type, which can only be created after
3726 * parse_cpu_option() returned the type.
3727 *
3728 * Machine compat properties: object_set_machine_compat_props().
3729 * Accelerator compat props: object_set_accelerator_compat_props(),
3730 * called from do_configure_accelerator().
3731 */
3732
3733 machine_class = MACHINE_GET_CLASS(current_machine);
3734 if (!qtest_enabled() && machine_class->deprecation_reason) {
3735 error_report("Machine type '%s' is deprecated: %s",
3736 machine_class->name, machine_class->deprecation_reason);
3737 }
3738
3739 /*
3740 * Note: creates a QOM object, must run only after global and
3741 * compat properties have been set up.
3742 */
3743 migration_object_init();
3744
3745 qemu_create_late_backends();
3746
3747 /* parse features once if machine provides default cpu_type */
3748 current_machine->cpu_type = machine_class->default_cpu_type;
3749 if (cpu_option) {
3750 current_machine->cpu_type = parse_cpu_option(cpu_option);
3751 }
3752 /* NB: for machine none cpu_type could STILL be NULL here! */
3753
3754 qemu_resolve_machine_memdev();
3755 parse_numa_opts(current_machine);
3756
3757 if (vmstate_dump_file) {
3758 /* dump and exit */
3759 module_load_qom_all();
3760 dump_vmstate_json_to_file(vmstate_dump_file);
3761 exit(0);
3762 }
3763
3764 if (!preconfig_requested) {
3765 qmp_x_exit_preconfig(&error_fatal);
3766 }
3767 qemu_init_displays();
3768 accel_setup_post(current_machine);
3769 os_setup_post();
3770 resume_mux_open();
3771 }
QEmu