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target/i386: Restrict sysemu-only fpu_helper helpers
[qemu/ar7.git] / softmmu / vl.c
blob55ab70eb97fe0a17a441fec3a668ac06a5de290b
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-common.h"
27 #include "qemu/datadir.h"
28 #include "qemu/units.h"
29 #include "exec/cpu-common.h"
30 #include "hw/qdev-properties.h"
31 #include "qapi/compat-policy.h"
32 #include "qapi/error.h"
33 #include "qapi/qmp/qdict.h"
34 #include "qapi/qmp/qstring.h"
35 #include "qapi/qmp/qjson.h"
36 #include "qemu-version.h"
37 #include "qemu/cutils.h"
38 #include "qemu/help_option.h"
39 #include "qemu/uuid.h"
40 #include "sysemu/reset.h"
41 #include "sysemu/runstate.h"
42 #include "sysemu/runstate-action.h"
43 #include "sysemu/seccomp.h"
44 #include "sysemu/tcg.h"
45 #include "sysemu/xen.h"
46
47 #include "qemu/error-report.h"
48 #include "qemu/sockets.h"
49 #include "qemu/accel.h"
50 #include "hw/usb.h"
51 #include "hw/isa/isa.h"
52 #include "hw/scsi/scsi.h"
53 #include "hw/display/vga.h"
54 #include "sysemu/watchdog.h"
55 #include "hw/firmware/smbios.h"
56 #include "hw/acpi/acpi.h"
57 #include "hw/xen/xen.h"
58 #include "hw/loader.h"
59 #include "monitor/qdev.h"
60 #include "net/net.h"
61 #include "net/slirp.h"
62 #include "monitor/monitor.h"
63 #include "ui/console.h"
64 #include "ui/input.h"
65 #include "sysemu/sysemu.h"
66 #include "sysemu/numa.h"
67 #include "sysemu/hostmem.h"
68 #include "exec/gdbstub.h"
69 #include "qemu/timer.h"
70 #include "chardev/char.h"
71 #include "qemu/bitmap.h"
72 #include "qemu/log.h"
73 #include "sysemu/blockdev.h"
74 #include "hw/block/block.h"
75 #include "hw/i386/x86.h"
76 #include "hw/i386/pc.h"
77 #include "migration/misc.h"
78 #include "migration/snapshot.h"
79 #include "sysemu/tpm.h"
80 #include "sysemu/dma.h"
81 #include "hw/audio/soundhw.h"
82 #include "audio/audio.h"
83 #include "sysemu/cpus.h"
84 #include "sysemu/cpu-timers.h"
85 #include "migration/colo.h"
86 #include "migration/postcopy-ram.h"
87 #include "sysemu/kvm.h"
88 #include "sysemu/hax.h"
89 #include "qapi/qobject-input-visitor.h"
90 #include "qemu/option.h"
91 #include "qemu/config-file.h"
92 #include "qemu/qemu-options.h"
93 #include "qemu/main-loop.h"
94 #ifdef CONFIG_VIRTFS
95 #include "fsdev/qemu-fsdev.h"
96 #endif
97 #include "sysemu/qtest.h"
98
99 #include "disas/disas.h"
100
101 #include "trace.h"
102 #include "trace/control.h"
103 #include "qemu/plugin.h"
104 #include "qemu/queue.h"
105 #include "sysemu/arch_init.h"
106 #include "exec/confidential-guest-support.h"
107
108 #include "ui/qemu-spice.h"
109 #include "qapi/string-input-visitor.h"
110 #include "qapi/opts-visitor.h"
111 #include "qapi/clone-visitor.h"
112 #include "qom/object_interfaces.h"
113 #include "semihosting/semihost.h"
114 #include "crypto/init.h"
115 #include "sysemu/replay.h"
116 #include "qapi/qapi-events-run-state.h"
117 #include "qapi/qapi-visit-block-core.h"
118 #include "qapi/qapi-visit-compat.h"
119 #include "qapi/qapi-visit-ui.h"
120 #include "qapi/qapi-commands-block-core.h"
121 #include "qapi/qapi-commands-migration.h"
122 #include "qapi/qapi-commands-misc.h"
123 #include "qapi/qapi-visit-qom.h"
124 #include "qapi/qapi-commands-ui.h"
125 #include "qapi/qmp/qdict.h"
126 #include "qapi/qmp/qerror.h"
127 #include "sysemu/iothread.h"
128 #include "qemu/guest-random.h"
129
130 #include "config-host.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133
134 typedef struct BlockdevOptionsQueueEntry {
135 BlockdevOptions *bdo;
136 Location loc;
137 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
138 } BlockdevOptionsQueueEntry;
139
140 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
141
142 typedef struct ObjectOption {
143 ObjectOptions *opts;
144 QTAILQ_ENTRY(ObjectOption) next;
145 } ObjectOption;
146
147 static const char *cpu_option;
148 static const char *mem_path;
149 static const char *incoming;
150 static const char *loadvm;
151 static const char *accelerators;
152 static QDict *machine_opts_dict;
153 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
154 static ram_addr_t maxram_size;
155 static uint64_t ram_slots;
156 static int display_remote;
157 static int snapshot;
158 static bool preconfig_requested;
159 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
160 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
161 static bool nographic = false;
162 static int mem_prealloc; /* force preallocation of physical target memory */
163 static ram_addr_t ram_size;
164 static const char *vga_model = NULL;
165 static DisplayOptions dpy;
166 static int num_serial_hds;
167 static Chardev **serial_hds;
168 static const char *log_mask;
169 static const char *log_file;
170 static bool list_data_dirs;
171 static const char *watchdog;
172 static const char *qtest_chrdev;
173 static const char *qtest_log;
174
175 static int has_defaults = 1;
176 static int default_serial = 1;
177 static int default_parallel = 1;
178 static int default_monitor = 1;
179 static int default_floppy = 1;
180 static int default_cdrom = 1;
181 static int default_sdcard = 1;
182 static int default_vga = 1;
183 static int default_net = 1;
184
185 static struct {
186 const char *driver;
187 int *flag;
188 } default_list[] = {
189 { .driver = "isa-serial", .flag = &default_serial },
190 { .driver = "isa-parallel", .flag = &default_parallel },
191 { .driver = "isa-fdc", .flag = &default_floppy },
192 { .driver = "floppy", .flag = &default_floppy },
193 { .driver = "ide-cd", .flag = &default_cdrom },
194 { .driver = "ide-hd", .flag = &default_cdrom },
195 { .driver = "scsi-cd", .flag = &default_cdrom },
196 { .driver = "scsi-hd", .flag = &default_cdrom },
197 { .driver = "VGA", .flag = &default_vga },
198 { .driver = "isa-vga", .flag = &default_vga },
199 { .driver = "cirrus-vga", .flag = &default_vga },
200 { .driver = "isa-cirrus-vga", .flag = &default_vga },
201 { .driver = "vmware-svga", .flag = &default_vga },
202 { .driver = "qxl-vga", .flag = &default_vga },
203 { .driver = "virtio-vga", .flag = &default_vga },
204 { .driver = "ati-vga", .flag = &default_vga },
205 { .driver = "vhost-user-vga", .flag = &default_vga },
206 { .driver = "virtio-vga-gl", .flag = &default_vga },
207 };
208
209 static QemuOptsList qemu_rtc_opts = {
210 .name = "rtc",
211 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
212 .merge_lists = true,
213 .desc = {
214 {
215 .name = "base",
216 .type = QEMU_OPT_STRING,
217 },{
218 .name = "clock",
219 .type = QEMU_OPT_STRING,
220 },{
221 .name = "driftfix",
222 .type = QEMU_OPT_STRING,
223 },
224 { /* end of list */ }
225 },
226 };
227
228 static QemuOptsList qemu_option_rom_opts = {
229 .name = "option-rom",
230 .implied_opt_name = "romfile",
231 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
232 .desc = {
233 {
234 .name = "bootindex",
235 .type = QEMU_OPT_NUMBER,
236 }, {
237 .name = "romfile",
238 .type = QEMU_OPT_STRING,
239 },
240 { /* end of list */ }
241 },
242 };
243
244 static QemuOptsList qemu_accel_opts = {
245 .name = "accel",
246 .implied_opt_name = "accel",
247 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
248 .desc = {
249 /*
250 * no elements => accept any
251 * sanity checking will happen later
252 * when setting accelerator properties
253 */
254 { }
255 },
256 };
257
258 static QemuOptsList qemu_boot_opts = {
259 .name = "boot-opts",
260 .implied_opt_name = "order",
261 .merge_lists = true,
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
263 .desc = {
264 {
265 .name = "order",
266 .type = QEMU_OPT_STRING,
267 }, {
268 .name = "once",
269 .type = QEMU_OPT_STRING,
270 }, {
271 .name = "menu",
272 .type = QEMU_OPT_BOOL,
273 }, {
274 .name = "splash",
275 .type = QEMU_OPT_STRING,
276 }, {
277 .name = "splash-time",
278 .type = QEMU_OPT_NUMBER,
279 }, {
280 .name = "reboot-timeout",
281 .type = QEMU_OPT_NUMBER,
282 }, {
283 .name = "strict",
284 .type = QEMU_OPT_BOOL,
285 },
286 { /*End of list */ }
287 },
288 };
289
290 static QemuOptsList qemu_add_fd_opts = {
291 .name = "add-fd",
292 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
293 .desc = {
294 {
295 .name = "fd",
296 .type = QEMU_OPT_NUMBER,
297 .help = "file descriptor of which a duplicate is added to fd set",
298 },{
299 .name = "set",
300 .type = QEMU_OPT_NUMBER,
301 .help = "ID of the fd set to add fd to",
302 },{
303 .name = "opaque",
304 .type = QEMU_OPT_STRING,
305 .help = "free-form string used to describe fd",
306 },
307 { /* end of list */ }
308 },
309 };
310
311 static QemuOptsList qemu_object_opts = {
312 .name = "object",
313 .implied_opt_name = "qom-type",
314 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
315 .desc = {
316 { }
317 },
318 };
319
320 static QemuOptsList qemu_tpmdev_opts = {
321 .name = "tpmdev",
322 .implied_opt_name = "type",
323 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
324 .desc = {
325 /* options are defined in the TPM backends */
326 { /* end of list */ }
327 },
328 };
329
330 static QemuOptsList qemu_overcommit_opts = {
331 .name = "overcommit",
332 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
333 .desc = {
334 {
335 .name = "mem-lock",
336 .type = QEMU_OPT_BOOL,
337 },
338 {
339 .name = "cpu-pm",
340 .type = QEMU_OPT_BOOL,
341 },
342 { /* end of list */ }
343 },
344 };
345
346 static QemuOptsList qemu_msg_opts = {
347 .name = "msg",
348 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
349 .desc = {
350 {
351 .name = "timestamp",
352 .type = QEMU_OPT_BOOL,
353 },
354 {
355 .name = "guest-name",
356 .type = QEMU_OPT_BOOL,
357 .help = "Prepends guest name for error messages but only if "
358 "-name guest is set otherwise option is ignored\n",
359 },
360 { /* end of list */ }
361 },
362 };
363
364 static QemuOptsList qemu_name_opts = {
365 .name = "name",
366 .implied_opt_name = "guest",
367 .merge_lists = true,
368 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
369 .desc = {
370 {
371 .name = "guest",
372 .type = QEMU_OPT_STRING,
373 .help = "Sets the name of the guest.\n"
374 "This name will be displayed in the SDL window caption.\n"
375 "The name will also be used for the VNC server",
376 }, {
377 .name = "process",
378 .type = QEMU_OPT_STRING,
379 .help = "Sets the name of the QEMU process, as shown in top etc",
380 }, {
381 .name = "debug-threads",
382 .type = QEMU_OPT_BOOL,
383 .help = "When enabled, name the individual threads; defaults off.\n"
384 "NOTE: The thread names are for debugging and not a\n"
385 "stable API.",
386 },
387 { /* End of list */ }
388 },
389 };
390
391 static QemuOptsList qemu_mem_opts = {
392 .name = "memory",
393 .implied_opt_name = "size",
394 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
395 .merge_lists = true,
396 .desc = {
397 {
398 .name = "size",
399 .type = QEMU_OPT_SIZE,
400 },
401 {
402 .name = "slots",
403 .type = QEMU_OPT_NUMBER,
404 },
405 {
406 .name = "maxmem",
407 .type = QEMU_OPT_SIZE,
408 },
409 { /* end of list */ }
410 },
411 };
412
413 static QemuOptsList qemu_icount_opts = {
414 .name = "icount",
415 .implied_opt_name = "shift",
416 .merge_lists = true,
417 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
418 .desc = {
419 {
420 .name = "shift",
421 .type = QEMU_OPT_STRING,
422 }, {
423 .name = "align",
424 .type = QEMU_OPT_BOOL,
425 }, {
426 .name = "sleep",
427 .type = QEMU_OPT_BOOL,
428 }, {
429 .name = "rr",
430 .type = QEMU_OPT_STRING,
431 }, {
432 .name = "rrfile",
433 .type = QEMU_OPT_STRING,
434 }, {
435 .name = "rrsnapshot",
436 .type = QEMU_OPT_STRING,
437 },
438 { /* end of list */ }
439 },
440 };
441
442 static QemuOptsList qemu_fw_cfg_opts = {
443 .name = "fw_cfg",
444 .implied_opt_name = "name",
445 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
446 .desc = {
447 {
448 .name = "name",
449 .type = QEMU_OPT_STRING,
450 .help = "Sets the fw_cfg name of the blob to be inserted",
451 }, {
452 .name = "file",
453 .type = QEMU_OPT_STRING,
454 .help = "Sets the name of the file from which "
455 "the fw_cfg blob will be loaded",
456 }, {
457 .name = "string",
458 .type = QEMU_OPT_STRING,
459 .help = "Sets content of the blob to be inserted from a string",
460 }, {
461 .name = "gen_id",
462 .type = QEMU_OPT_STRING,
463 .help = "Sets id of the object generating the fw_cfg blob "
464 "to be inserted",
465 },
466 { /* end of list */ }
467 },
468 };
469
470 static QemuOptsList qemu_action_opts = {
471 .name = "action",
472 .merge_lists = true,
473 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
474 .desc = {
475 {
476 .name = "shutdown",
477 .type = QEMU_OPT_STRING,
478 },{
479 .name = "reboot",
480 .type = QEMU_OPT_STRING,
481 },{
482 .name = "panic",
483 .type = QEMU_OPT_STRING,
484 },{
485 .name = "watchdog",
486 .type = QEMU_OPT_STRING,
487 },
488 { /* end of list */ }
489 },
490 };
491
492 const char *qemu_get_vm_name(void)
493 {
494 return qemu_name;
495 }
496
497 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
498 {
499 const char *driver = qemu_opt_get(opts, "driver");
500 int i;
501
502 if (!driver)
503 return 0;
504 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
505 if (strcmp(default_list[i].driver, driver) != 0)
506 continue;
507 *(default_list[i].flag) = 0;
508 }
509 return 0;
510 }
511
512 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
513 {
514 const char *proc_name;
515
516 if (qemu_opt_get(opts, "debug-threads")) {
517 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
518 }
519 qemu_name = qemu_opt_get(opts, "guest");
520
521 proc_name = qemu_opt_get(opts, "process");
522 if (proc_name) {
523 os_set_proc_name(proc_name);
524 }
525
526 return 0;
527 }
528
529 bool defaults_enabled(void)
530 {
531 return has_defaults;
532 }
533
534 #ifndef _WIN32
535 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
536 {
537 int fd, dupfd, flags;
538 int64_t fdset_id;
539 const char *fd_opaque = NULL;
540 AddfdInfo *fdinfo;
541
542 fd = qemu_opt_get_number(opts, "fd", -1);
543 fdset_id = qemu_opt_get_number(opts, "set", -1);
544 fd_opaque = qemu_opt_get(opts, "opaque");
545
546 if (fd < 0) {
547 error_setg(errp, "fd option is required and must be non-negative");
548 return -1;
549 }
550
551 if (fd <= STDERR_FILENO) {
552 error_setg(errp, "fd cannot be a standard I/O stream");
553 return -1;
554 }
555
556 /*
557 * All fds inherited across exec() necessarily have FD_CLOEXEC
558 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
559 */
560 flags = fcntl(fd, F_GETFD);
561 if (flags == -1 || (flags & FD_CLOEXEC)) {
562 error_setg(errp, "fd is not valid or already in use");
563 return -1;
564 }
565
566 if (fdset_id < 0) {
567 error_setg(errp, "set option is required and must be non-negative");
568 return -1;
569 }
570
571 #ifdef F_DUPFD_CLOEXEC
572 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
573 #else
574 dupfd = dup(fd);
575 if (dupfd != -1) {
576 qemu_set_cloexec(dupfd);
577 }
578 #endif
579 if (dupfd == -1) {
580 error_setg(errp, "error duplicating fd: %s", strerror(errno));
581 return -1;
582 }
583
584 /* add the duplicate fd, and optionally the opaque string, to the fd set */
585 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
586 &error_abort);
587 g_free(fdinfo);
588
589 return 0;
590 }
591
592 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
593 {
594 int fd;
595
596 fd = qemu_opt_get_number(opts, "fd", -1);
597 close(fd);
598
599 return 0;
600 }
601 #endif
602
603 /***********************************************************/
604 /* QEMU Block devices */
605
606 #define HD_OPTS "media=disk"
607 #define CDROM_OPTS "media=cdrom"
608 #define FD_OPTS ""
609 #define PFLASH_OPTS ""
610 #define MTD_OPTS ""
611 #define SD_OPTS ""
612
613 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
614 {
615 BlockInterfaceType *block_default_type = opaque;
616
617 return drive_new(opts, *block_default_type, errp) == NULL;
618 }
619
620 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
621 {
622 if (qemu_opt_get(opts, "snapshot") == NULL) {
623 qemu_opt_set(opts, "snapshot", "on", &error_abort);
624 }
625 return 0;
626 }
627
628 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
629 int index, const char *optstr)
630 {
631 QemuOpts *opts;
632 DriveInfo *dinfo;
633
634 if (!enable || drive_get_by_index(type, index)) {
635 return;
636 }
637
638 opts = drive_add(type, index, NULL, optstr);
639 if (snapshot) {
640 drive_enable_snapshot(NULL, opts, NULL);
641 }
642
643 dinfo = drive_new(opts, type, &error_abort);
644 dinfo->is_default = true;
645
646 }
647
648 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
649 MachineClass *machine_class, int snapshot)
650 {
651 /*
652 * If the currently selected machine wishes to override the
653 * units-per-bus property of its default HBA interface type, do so
654 * now.
655 */
656 if (machine_class->units_per_default_bus) {
657 override_max_devs(machine_class->block_default_type,
658 machine_class->units_per_default_bus);
659 }
660
661 /* open the virtual block devices */
662 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
663 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
664
665 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
666 loc_push_restore(&bdo->loc);
667 qmp_blockdev_add(bdo->bdo, &error_fatal);
668 loc_pop(&bdo->loc);
669 qapi_free_BlockdevOptions(bdo->bdo);
670 g_free(bdo);
671 }
672 if (snapshot) {
673 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
674 NULL, NULL);
675 }
676 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
677 &machine_class->block_default_type, &error_fatal)) {
678 /* We printed help */
679 exit(0);
680 }
681
682 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
683 CDROM_OPTS);
684 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
685 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
686
687 }
688
689 static QemuOptsList qemu_smp_opts = {
690 .name = "smp-opts",
691 .implied_opt_name = "cpus",
692 .merge_lists = true,
693 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
694 .desc = {
695 {
696 .name = "cpus",
697 .type = QEMU_OPT_NUMBER,
698 }, {
699 .name = "sockets",
700 .type = QEMU_OPT_NUMBER,
701 }, {
702 .name = "dies",
703 .type = QEMU_OPT_NUMBER,
704 }, {
705 .name = "cores",
706 .type = QEMU_OPT_NUMBER,
707 }, {
708 .name = "threads",
709 .type = QEMU_OPT_NUMBER,
710 }, {
711 .name = "maxcpus",
712 .type = QEMU_OPT_NUMBER,
713 },
714 { /*End of list */ }
715 },
716 };
717
718 static void realtime_init(void)
719 {
720 if (enable_mlock) {
721 if (os_mlock() < 0) {
722 error_report("locking memory failed");
723 exit(1);
724 }
725 }
726 }
727
728
729 static void configure_msg(QemuOpts *opts)
730 {
731 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
732 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
733 }
734
735
736 /***********************************************************/
737 /* USB devices */
738
739 static int usb_device_add(const char *devname)
740 {
741 USBDevice *dev = NULL;
742
743 if (!machine_usb(current_machine)) {
744 return -1;
745 }
746
747 dev = usbdevice_create(devname);
748 if (!dev)
749 return -1;
750
751 return 0;
752 }
753
754 static int usb_parse(const char *cmdline)
755 {
756 int r;
757 r = usb_device_add(cmdline);
758 if (r < 0) {
759 error_report("could not add USB device '%s'", cmdline);
760 }
761 return r;
762 }
763
764 /***********************************************************/
765 /* machine registration */
766
767 static MachineClass *find_machine(const char *name, GSList *machines)
768 {
769 GSList *el;
770
771 for (el = machines; el; el = el->next) {
772 MachineClass *mc = el->data;
773
774 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
775 return mc;
776 }
777 }
778
779 return NULL;
780 }
781
782 static MachineClass *find_default_machine(GSList *machines)
783 {
784 GSList *el;
785 MachineClass *default_machineclass = NULL;
786
787 for (el = machines; el; el = el->next) {
788 MachineClass *mc = el->data;
789
790 if (mc->is_default) {
791 assert(default_machineclass == NULL && "Multiple default machines");
792 default_machineclass = mc;
793 }
794 }
795
796 return default_machineclass;
797 }
798
799 static void version(void)
800 {
801 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
802 QEMU_COPYRIGHT "\n");
803 }
804
805 static void help(int exitcode)
806 {
807 version();
808 printf("usage: %s [options] [disk_image]\n\n"
809 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
810 error_get_progname());
811
812 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
813 if ((arch_mask) & arch_type) \
814 fputs(opt_help, stdout);
815
816 #define ARCHHEADING(text, arch_mask) \
817 if ((arch_mask) & arch_type) \
818 puts(stringify(text));
819
820 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
821
822 #include "qemu-options.def"
823
824 printf("\nDuring emulation, the following keys are useful:\n"
825 "ctrl-alt-f toggle full screen\n"
826 "ctrl-alt-n switch to virtual console 'n'\n"
827 "ctrl-alt toggle mouse and keyboard grab\n"
828 "\n"
829 "When using -nographic, press 'ctrl-a h' to get some help.\n"
830 "\n"
831 QEMU_HELP_BOTTOM "\n");
832
833 exit(exitcode);
834 }
835
836 #define HAS_ARG 0x0001
837
838 typedef struct QEMUOption {
839 const char *name;
840 int flags;
841 int index;
842 uint32_t arch_mask;
843 } QEMUOption;
844
845 static const QEMUOption qemu_options[] = {
846 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
847
848 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
849 { option, opt_arg, opt_enum, arch_mask },
850 #define DEFHEADING(text)
851 #define ARCHHEADING(text, arch_mask)
852
853 #include "qemu-options.def"
854 { NULL },
855 };
856
857 typedef struct VGAInterfaceInfo {
858 const char *opt_name; /* option name */
859 const char *name; /* human-readable name */
860 /* Class names indicating that support is available.
861 * If no class is specified, the interface is always available */
862 const char *class_names[2];
863 } VGAInterfaceInfo;
864
865 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
866 [VGA_NONE] = {
867 .opt_name = "none",
868 .name = "no graphic card",
869 },
870 [VGA_STD] = {
871 .opt_name = "std",
872 .name = "standard VGA",
873 .class_names = { "VGA", "isa-vga" },
874 },
875 [VGA_CIRRUS] = {
876 .opt_name = "cirrus",
877 .name = "Cirrus VGA",
878 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
879 },
880 [VGA_VMWARE] = {
881 .opt_name = "vmware",
882 .name = "VMWare SVGA",
883 .class_names = { "vmware-svga" },
884 },
885 [VGA_VIRTIO] = {
886 .opt_name = "virtio",
887 .name = "Virtio VGA",
888 .class_names = { "virtio-vga" },
889 },
890 [VGA_QXL] = {
891 .opt_name = "qxl",
892 .name = "QXL VGA",
893 .class_names = { "qxl-vga" },
894 },
895 [VGA_TCX] = {
896 .opt_name = "tcx",
897 .name = "TCX framebuffer",
898 .class_names = { "sun-tcx" },
899 },
900 [VGA_CG3] = {
901 .opt_name = "cg3",
902 .name = "CG3 framebuffer",
903 .class_names = { "cgthree" },
904 },
905 [VGA_XENFB] = {
906 .opt_name = "xenfb",
907 .name = "Xen paravirtualized framebuffer",
908 },
909 };
910
911 static bool vga_interface_available(VGAInterfaceType t)
912 {
913 const VGAInterfaceInfo *ti = &vga_interfaces[t];
914
915 assert(t < VGA_TYPE_MAX);
916 return !ti->class_names[0] ||
917 module_object_class_by_name(ti->class_names[0]) ||
918 module_object_class_by_name(ti->class_names[1]);
919 }
920
921 static const char *
922 get_default_vga_model(const MachineClass *machine_class)
923 {
924 if (machine_class->default_display) {
925 return machine_class->default_display;
926 } else if (vga_interface_available(VGA_CIRRUS)) {
927 return "cirrus";
928 } else if (vga_interface_available(VGA_STD)) {
929 return "std";
930 }
931
932 return NULL;
933 }
934
935 static void select_vgahw(const MachineClass *machine_class, const char *p)
936 {
937 const char *opts;
938 int t;
939
940 if (g_str_equal(p, "help")) {
941 const char *def = get_default_vga_model(machine_class);
942
943 for (t = 0; t < VGA_TYPE_MAX; t++) {
944 const VGAInterfaceInfo *ti = &vga_interfaces[t];
945
946 if (vga_interface_available(t) && ti->opt_name) {
947 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
948 g_str_equal(ti->opt_name, def) ? " (default)" : "");
949 }
950 }
951 exit(0);
952 }
953
954 assert(vga_interface_type == VGA_NONE);
955 for (t = 0; t < VGA_TYPE_MAX; t++) {
956 const VGAInterfaceInfo *ti = &vga_interfaces[t];
957 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
958 if (!vga_interface_available(t)) {
959 error_report("%s not available", ti->name);
960 exit(1);
961 }
962 vga_interface_type = t;
963 break;
964 }
965 }
966 if (t == VGA_TYPE_MAX) {
967 invalid_vga:
968 error_report("unknown vga type: %s", p);
969 exit(1);
970 }
971 while (*opts) {
972 const char *nextopt;
973
974 if (strstart(opts, ",retrace=", &nextopt)) {
975 opts = nextopt;
976 if (strstart(opts, "dumb", &nextopt))
977 vga_retrace_method = VGA_RETRACE_DUMB;
978 else if (strstart(opts, "precise", &nextopt))
979 vga_retrace_method = VGA_RETRACE_PRECISE;
980 else goto invalid_vga;
981 } else goto invalid_vga;
982 opts = nextopt;
983 }
984 }
985
986 static void parse_display_qapi(const char *optarg)
987 {
988 DisplayOptions *opts;
989 Visitor *v;
990
991 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
992
993 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
994 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
995
996 qapi_free_DisplayOptions(opts);
997 visit_free(v);
998 }
999
1000 DisplayOptions *qmp_query_display_options(Error **errp)
1001 {
1002 return QAPI_CLONE(DisplayOptions, &dpy);
1003 }
1004
1005 static void parse_display(const char *p)
1006 {
1007 const char *opts;
1008
1009 if (is_help_option(p)) {
1010 qemu_display_help();
1011 exit(0);
1012 }
1013
1014 if (strstart(p, "sdl", &opts)) {
1015 /*
1016 * sdl DisplayType needs hand-crafted parser instead of
1017 * parse_display_qapi() due to some options not in
1018 * DisplayOptions, specifically:
1019 * - ctrl_grab + alt_grab
1020 * They can't be moved into the QAPI since they use underscores,
1021 * thus they will get replaced by "grab-mod" in the long term
1022 */
1023 #if defined(CONFIG_SDL)
1024 dpy.type = DISPLAY_TYPE_SDL;
1025 while (*opts) {
1026 const char *nextopt;
1027
1028 if (strstart(opts, ",grab-mod=", &nextopt)) {
1029 opts = nextopt;
1030 if (strstart(opts, "lshift-lctrl-lalt", &nextopt)) {
1031 alt_grab = 1;
1032 } else if (strstart(opts, "rctrl", &nextopt)) {
1033 ctrl_grab = 1;
1034 } else {
1035 goto invalid_sdl_args;
1036 }
1037 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1038 opts = nextopt;
1039 if (strstart(opts, "on", &nextopt)) {
1040 alt_grab = 1;
1041 } else if (strstart(opts, "off", &nextopt)) {
1042 alt_grab = 0;
1043 } else {
1044 goto invalid_sdl_args;
1045 }
1046 warn_report("alt_grab is deprecated, use grab-mod instead.");
1047 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1048 opts = nextopt;
1049 if (strstart(opts, "on", &nextopt)) {
1050 ctrl_grab = 1;
1051 } else if (strstart(opts, "off", &nextopt)) {
1052 ctrl_grab = 0;
1053 } else {
1054 goto invalid_sdl_args;
1055 }
1056 warn_report("ctrl_grab is deprecated, use grab-mod instead.");
1057 } else if (strstart(opts, ",window_close=", &nextopt) ||
1058 strstart(opts, ",window-close=", &nextopt)) {
1059 if (strstart(opts, ",window_close=", NULL)) {
1060 warn_report("window_close with an underscore is deprecated,"
1061 " please use window-close instead.");
1062 }
1063 opts = nextopt;
1064 dpy.has_window_close = true;
1065 if (strstart(opts, "on", &nextopt)) {
1066 dpy.window_close = true;
1067 } else if (strstart(opts, "off", &nextopt)) {
1068 dpy.window_close = false;
1069 } else {
1070 goto invalid_sdl_args;
1071 }
1072 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1073 opts = nextopt;
1074 dpy.has_show_cursor = true;
1075 if (strstart(opts, "on", &nextopt)) {
1076 dpy.show_cursor = true;
1077 } else if (strstart(opts, "off", &nextopt)) {
1078 dpy.show_cursor = false;
1079 } else {
1080 goto invalid_sdl_args;
1081 }
1082 } else if (strstart(opts, ",gl=", &nextopt)) {
1083 opts = nextopt;
1084 dpy.has_gl = true;
1085 if (strstart(opts, "on", &nextopt)) {
1086 dpy.gl = DISPLAYGL_MODE_ON;
1087 } else if (strstart(opts, "core", &nextopt)) {
1088 dpy.gl = DISPLAYGL_MODE_CORE;
1089 } else if (strstart(opts, "es", &nextopt)) {
1090 dpy.gl = DISPLAYGL_MODE_ES;
1091 } else if (strstart(opts, "off", &nextopt)) {
1092 dpy.gl = DISPLAYGL_MODE_OFF;
1093 } else {
1094 goto invalid_sdl_args;
1095 }
1096 } else {
1097 invalid_sdl_args:
1098 error_report("invalid SDL option string");
1099 exit(1);
1100 }
1101 opts = nextopt;
1102 }
1103 #else
1104 error_report("SDL display supported is not available in this binary");
1105 exit(1);
1106 #endif
1107 } else if (strstart(p, "vnc", &opts)) {
1108 /*
1109 * vnc isn't a (local) DisplayType but a protocol for remote
1110 * display access.
1111 */
1112 if (*opts == '=') {
1113 vnc_parse(opts + 1);
1114 } else {
1115 error_report("VNC requires a display argument vnc=<display>");
1116 exit(1);
1117 }
1118 } else {
1119 parse_display_qapi(p);
1120 }
1121 }
1122
1123 static inline bool nonempty_str(const char *str)
1124 {
1125 return str && *str;
1126 }
1127
1128 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1129 {
1130 gchar *buf;
1131 size_t size;
1132 const char *name, *file, *str, *gen_id;
1133 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1134
1135 if (fw_cfg == NULL) {
1136 error_setg(errp, "fw_cfg device not available");
1137 return -1;
1138 }
1139 name = qemu_opt_get(opts, "name");
1140 file = qemu_opt_get(opts, "file");
1141 str = qemu_opt_get(opts, "string");
1142 gen_id = qemu_opt_get(opts, "gen_id");
1143
1144 /* we need the name, and exactly one of: file, content string, gen_id */
1145 if (!nonempty_str(name) ||
1146 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1147 error_setg(errp, "name, plus exactly one of file,"
1148 " string and gen_id, are needed");
1149 return -1;
1150 }
1151 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1152 error_setg(errp, "name too long (max. %d char)",
1153 FW_CFG_MAX_FILE_PATH - 1);
1154 return -1;
1155 }
1156 if (nonempty_str(gen_id)) {
1157 /*
1158 * In this particular case where the content is populated
1159 * internally, the "etc/" namespace protection is relaxed,
1160 * so do not emit a warning.
1161 */
1162 } else if (strncmp(name, "opt/", 4) != 0) {
1163 warn_report("externally provided fw_cfg item names "
1164 "should be prefixed with \"opt/\"");
1165 }
1166 if (nonempty_str(str)) {
1167 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1168 buf = g_memdup(str, size);
1169 } else if (nonempty_str(gen_id)) {
1170 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1171 return -1;
1172 }
1173 return 0;
1174 } else {
1175 GError *err = NULL;
1176 if (!g_file_get_contents(file, &buf, &size, &err)) {
1177 error_setg(errp, "can't load %s: %s", file, err->message);
1178 g_error_free(err);
1179 return -1;
1180 }
1181 }
1182 /* For legacy, keep user files in a specific global order. */
1183 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1184 fw_cfg_add_file(fw_cfg, name, buf, size);
1185 fw_cfg_reset_order_override(fw_cfg);
1186 return 0;
1187 }
1188
1189 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1190 {
1191 return qdev_device_help(opts);
1192 }
1193
1194 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1195 {
1196 DeviceState *dev;
1197
1198 dev = qdev_device_add(opts, errp);
1199 if (!dev && *errp) {
1200 error_report_err(*errp);
1201 return -1;
1202 } else if (dev) {
1203 object_unref(OBJECT(dev));
1204 }
1205 return 0;
1206 }
1207
1208 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1209 {
1210 Error *local_err = NULL;
1211
1212 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1213 if (local_err) {
1214 error_propagate(errp, local_err);
1215 return -1;
1216 }
1217 exit(0);
1218 }
1219 return 0;
1220 }
1221
1222 #ifdef CONFIG_VIRTFS
1223 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1224 {
1225 return qemu_fsdev_add(opts, errp);
1226 }
1227 #endif
1228
1229 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1230 {
1231 return monitor_init_opts(opts, errp);
1232 }
1233
1234 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
1235 {
1236 static int monitor_device_index = 0;
1237 QemuOpts *opts;
1238 const char *p;
1239 char label[32];
1240
1241 if (strstart(optarg, "chardev:", &p)) {
1242 snprintf(label, sizeof(label), "%s", p);
1243 } else {
1244 snprintf(label, sizeof(label), "compat_monitor%d",
1245 monitor_device_index);
1246 opts = qemu_chr_parse_compat(label, optarg, true);
1247 if (!opts) {
1248 error_report("parse error: %s", optarg);
1249 exit(1);
1250 }
1251 }
1252
1253 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1254 qemu_opt_set(opts, "mode", mode, &error_abort);
1255 qemu_opt_set(opts, "chardev", label, &error_abort);
1256 if (!strcmp(mode, "control")) {
1257 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1258 } else {
1259 assert(pretty == false);
1260 }
1261 monitor_device_index++;
1262 }
1263
1264 struct device_config {
1265 enum {
1266 DEV_USB, /* -usbdevice */
1267 DEV_SERIAL, /* -serial */
1268 DEV_PARALLEL, /* -parallel */
1269 DEV_DEBUGCON, /* -debugcon */
1270 DEV_GDB, /* -gdb, -s */
1271 DEV_SCLP, /* s390 sclp */
1272 } type;
1273 const char *cmdline;
1274 Location loc;
1275 QTAILQ_ENTRY(device_config) next;
1276 };
1277
1278 static QTAILQ_HEAD(, device_config) device_configs =
1279 QTAILQ_HEAD_INITIALIZER(device_configs);
1280
1281 static void add_device_config(int type, const char *cmdline)
1282 {
1283 struct device_config *conf;
1284
1285 conf = g_malloc0(sizeof(*conf));
1286 conf->type = type;
1287 conf->cmdline = cmdline;
1288 loc_save(&conf->loc);
1289 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1290 }
1291
1292 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1293 {
1294 struct device_config *conf;
1295 int rc;
1296
1297 QTAILQ_FOREACH(conf, &device_configs, next) {
1298 if (conf->type != type)
1299 continue;
1300 loc_push_restore(&conf->loc);
1301 rc = func(conf->cmdline);
1302 loc_pop(&conf->loc);
1303 if (rc) {
1304 return rc;
1305 }
1306 }
1307 return 0;
1308 }
1309
1310 static void qemu_disable_default_devices(void)
1311 {
1312 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1313
1314 qemu_opts_foreach(qemu_find_opts("device"),
1315 default_driver_check, NULL, NULL);
1316 qemu_opts_foreach(qemu_find_opts("global"),
1317 default_driver_check, NULL, NULL);
1318
1319 if (!vga_model && !default_vga) {
1320 vga_interface_type = VGA_DEVICE;
1321 }
1322 if (!has_defaults || machine_class->no_serial) {
1323 default_serial = 0;
1324 }
1325 if (!has_defaults || machine_class->no_parallel) {
1326 default_parallel = 0;
1327 }
1328 if (!has_defaults || machine_class->no_floppy) {
1329 default_floppy = 0;
1330 }
1331 if (!has_defaults || machine_class->no_cdrom) {
1332 default_cdrom = 0;
1333 }
1334 if (!has_defaults || machine_class->no_sdcard) {
1335 default_sdcard = 0;
1336 }
1337 if (!has_defaults) {
1338 default_monitor = 0;
1339 default_net = 0;
1340 default_vga = 0;
1341 }
1342 }
1343
1344 static void qemu_create_default_devices(void)
1345 {
1346 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1347
1348 if (is_daemonized()) {
1349 /* According to documentation and historically, -nographic redirects
1350 * serial port, parallel port and monitor to stdio, which does not work
1351 * with -daemonize. We can redirect these to null instead, but since
1352 * -nographic is legacy, let's just error out.
1353 * We disallow -nographic only if all other ports are not redirected
1354 * explicitly, to not break existing legacy setups which uses
1355 * -nographic _and_ redirects all ports explicitly - this is valid
1356 * usage, -nographic is just a no-op in this case.
1357 */
1358 if (nographic
1359 && (default_parallel || default_serial || default_monitor)) {
1360 error_report("-nographic cannot be used with -daemonize");
1361 exit(1);
1362 }
1363 }
1364
1365 if (nographic) {
1366 if (default_parallel)
1367 add_device_config(DEV_PARALLEL, "null");
1368 if (default_serial && default_monitor) {
1369 add_device_config(DEV_SERIAL, "mon:stdio");
1370 } else {
1371 if (default_serial)
1372 add_device_config(DEV_SERIAL, "stdio");
1373 if (default_monitor)
1374 monitor_parse("stdio", "readline", false);
1375 }
1376 } else {
1377 if (default_serial)
1378 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1379 if (default_parallel)
1380 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1381 if (default_monitor)
1382 monitor_parse("vc:80Cx24C", "readline", false);
1383 }
1384
1385 if (default_net) {
1386 QemuOptsList *net = qemu_find_opts("net");
1387 qemu_opts_parse(net, "nic", true, &error_abort);
1388 #ifdef CONFIG_SLIRP
1389 qemu_opts_parse(net, "user", true, &error_abort);
1390 #endif
1391 }
1392
1393 #if defined(CONFIG_VNC)
1394 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
1395 display_remote++;
1396 }
1397 #endif
1398 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1399 if (!qemu_display_find_default(&dpy)) {
1400 dpy.type = DISPLAY_TYPE_NONE;
1401 #if defined(CONFIG_VNC)
1402 vnc_parse("localhost:0,to=99,id=default");
1403 #endif
1404 }
1405 }
1406 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1407 dpy.type = DISPLAY_TYPE_NONE;
1408 }
1409
1410 /* If no default VGA is requested, the default is "none". */
1411 if (default_vga) {
1412 vga_model = get_default_vga_model(machine_class);
1413 }
1414 if (vga_model) {
1415 select_vgahw(machine_class, vga_model);
1416 }
1417 }
1418
1419 static int serial_parse(const char *devname)
1420 {
1421 int index = num_serial_hds;
1422 char label[32];
1423
1424 if (strcmp(devname, "none") == 0)
1425 return 0;
1426 snprintf(label, sizeof(label), "serial%d", index);
1427 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1428
1429 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1430 if (!serial_hds[index]) {
1431 error_report("could not connect serial device"
1432 " to character backend '%s'", devname);
1433 return -1;
1434 }
1435 num_serial_hds++;
1436 return 0;
1437 }
1438
1439 Chardev *serial_hd(int i)
1440 {
1441 assert(i >= 0);
1442 if (i < num_serial_hds) {
1443 return serial_hds[i];
1444 }
1445 return NULL;
1446 }
1447
1448 static int parallel_parse(const char *devname)
1449 {
1450 static int index = 0;
1451 char label[32];
1452
1453 if (strcmp(devname, "none") == 0)
1454 return 0;
1455 if (index == MAX_PARALLEL_PORTS) {
1456 error_report("too many parallel ports");
1457 exit(1);
1458 }
1459 snprintf(label, sizeof(label), "parallel%d", index);
1460 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1461 if (!parallel_hds[index]) {
1462 error_report("could not connect parallel device"
1463 " to character backend '%s'", devname);
1464 return -1;
1465 }
1466 index++;
1467 return 0;
1468 }
1469
1470 static int debugcon_parse(const char *devname)
1471 {
1472 QemuOpts *opts;
1473
1474 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1475 error_report("invalid character backend '%s'", devname);
1476 exit(1);
1477 }
1478 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1479 if (!opts) {
1480 error_report("already have a debugcon device");
1481 exit(1);
1482 }
1483 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1484 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1485 return 0;
1486 }
1487
1488 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1489 {
1490 const MachineClass *mc1 = a, *mc2 = b;
1491 int res;
1492
1493 if (mc1->family == NULL) {
1494 if (mc2->family == NULL) {
1495 /* Compare standalone machine types against each other; they sort
1496 * in increasing order.
1497 */
1498 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1499 object_class_get_name(OBJECT_CLASS(mc2)));
1500 }
1501
1502 /* Standalone machine types sort after families. */
1503 return 1;
1504 }
1505
1506 if (mc2->family == NULL) {
1507 /* Families sort before standalone machine types. */
1508 return -1;
1509 }
1510
1511 /* Families sort between each other alphabetically increasingly. */
1512 res = strcmp(mc1->family, mc2->family);
1513 if (res != 0) {
1514 return res;
1515 }
1516
1517 /* Within the same family, machine types sort in decreasing order. */
1518 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1519 object_class_get_name(OBJECT_CLASS(mc1)));
1520 }
1521
1522 static void machine_help_func(const QDict *qdict)
1523 {
1524 GSList *machines, *el;
1525 const char *type = qdict_get_try_str(qdict, "type");
1526
1527 machines = object_class_get_list(TYPE_MACHINE, false);
1528 if (type) {
1529 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1530 if (machine_class) {
1531 type_print_class_properties(object_class_get_name(machine_class));
1532 return;
1533 }
1534 }
1535
1536 printf("Supported machines are:\n");
1537 machines = g_slist_sort(machines, machine_class_cmp);
1538 for (el = machines; el; el = el->next) {
1539 MachineClass *mc = el->data;
1540 if (mc->alias) {
1541 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1542 }
1543 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1544 mc->is_default ? " (default)" : "",
1545 mc->deprecation_reason ? " (deprecated)" : "");
1546 }
1547 }
1548
1549 static void
1550 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1551 {
1552 QDict *opts;
1553
1554 opts = qdict_new();
1555 /* Preserve the caller's reference to prop. */
1556 qobject_ref(prop);
1557 qdict_put(opts, propname, prop);
1558 keyval_merge(machine_opts_dict, opts, errp);
1559 qobject_unref(opts);
1560 }
1561
1562 static void
1563 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1564 const char *arg)
1565 {
1566 QDict *prop = NULL;
1567 bool help = false;
1568
1569 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1570 if (help) {
1571 qemu_opts_print_help(opts_list, true);
1572 exit(0);
1573 }
1574 machine_merge_property(propname, prop, &error_fatal);
1575 qobject_unref(prop);
1576 }
1577
1578 static const char *pid_file;
1579 static Notifier qemu_unlink_pidfile_notifier;
1580
1581 static void qemu_unlink_pidfile(Notifier *n, void *data)
1582 {
1583 if (pid_file) {
1584 unlink(pid_file);
1585 }
1586 }
1587
1588 static const QEMUOption *lookup_opt(int argc, char **argv,
1589 const char **poptarg, int *poptind)
1590 {
1591 const QEMUOption *popt;
1592 int optind = *poptind;
1593 char *r = argv[optind];
1594 const char *optarg;
1595
1596 loc_set_cmdline(argv, optind, 1);
1597 optind++;
1598 /* Treat --foo the same as -foo. */
1599 if (r[1] == '-')
1600 r++;
1601 popt = qemu_options;
1602 for(;;) {
1603 if (!popt->name) {
1604 error_report("invalid option");
1605 exit(1);
1606 }
1607 if (!strcmp(popt->name, r + 1))
1608 break;
1609 popt++;
1610 }
1611 if (popt->flags & HAS_ARG) {
1612 if (optind >= argc) {
1613 error_report("requires an argument");
1614 exit(1);
1615 }
1616 optarg = argv[optind++];
1617 loc_set_cmdline(argv, optind - 2, 2);
1618 } else {
1619 optarg = NULL;
1620 }
1621
1622 *poptarg = optarg;
1623 *poptind = optind;
1624
1625 return popt;
1626 }
1627
1628 static MachineClass *select_machine(QDict *qdict, Error **errp)
1629 {
1630 const char *optarg = qdict_get_try_str(qdict, "type");
1631 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1632 MachineClass *machine_class;
1633 Error *local_err = NULL;
1634
1635 if (optarg) {
1636 machine_class = find_machine(optarg, machines);
1637 qdict_del(qdict, "type");
1638 if (!machine_class) {
1639 error_setg(&local_err, "unsupported machine type");
1640 }
1641 } else {
1642 machine_class = find_default_machine(machines);
1643 if (!machine_class) {
1644 error_setg(&local_err, "No machine specified, and there is no default");
1645 }
1646 }
1647
1648 g_slist_free(machines);
1649 if (local_err) {
1650 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1651 error_propagate(errp, local_err);
1652 }
1653 return machine_class;
1654 }
1655
1656 static int object_parse_property_opt(Object *obj,
1657 const char *name, const char *value,
1658 const char *skip, Error **errp)
1659 {
1660 if (g_str_equal(name, skip)) {
1661 return 0;
1662 }
1663
1664 if (!object_property_parse(obj, name, value, errp)) {
1665 return -1;
1666 }
1667
1668 return 0;
1669 }
1670
1671 /* *Non*recursively replace underscores with dashes in QDict keys. */
1672 static void keyval_dashify(QDict *qdict, Error **errp)
1673 {
1674 const QDictEntry *ent, *next;
1675 char *p;
1676
1677 for (ent = qdict_first(qdict); ent; ent = next) {
1678 g_autofree char *new_key = NULL;
1679
1680 next = qdict_next(qdict, ent);
1681 if (!strchr(ent->key, '_')) {
1682 continue;
1683 }
1684 new_key = g_strdup(ent->key);
1685 for (p = new_key; *p; p++) {
1686 if (*p == '_') {
1687 *p = '-';
1688 }
1689 }
1690 if (qdict_haskey(qdict, new_key)) {
1691 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1692 return;
1693 }
1694 qobject_ref(ent->value);
1695 qdict_put_obj(qdict, new_key, ent->value);
1696 qdict_del(qdict, ent->key);
1697 }
1698 }
1699
1700 static void qemu_apply_legacy_machine_options(QDict *qdict)
1701 {
1702 const char *value;
1703
1704 keyval_dashify(qdict, &error_fatal);
1705
1706 /* Legacy options do not correspond to MachineState properties. */
1707 value = qdict_get_try_str(qdict, "accel");
1708 if (value) {
1709 accelerators = g_strdup(value);
1710 qdict_del(qdict, "accel");
1711 }
1712
1713 value = qdict_get_try_str(qdict, "igd-passthru");
1714 if (value) {
1715 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1716 false);
1717 qdict_del(qdict, "igd-passthru");
1718 }
1719
1720 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1721 if (value) {
1722 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1723 false);
1724 qdict_del(qdict, "kvm-shadow-mem");
1725 }
1726
1727 value = qdict_get_try_str(qdict, "kernel-irqchip");
1728 if (value) {
1729 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1730 false);
1731 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1732 false);
1733 qdict_del(qdict, "kernel-irqchip");
1734 }
1735 }
1736
1737 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1738 {
1739 ObjectOption *opt, *next;
1740
1741 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1742 const char *type = ObjectType_str(opt->opts->qom_type);
1743 if (type_opt_predicate(type)) {
1744 user_creatable_add_qapi(opt->opts, &error_fatal);
1745 qapi_free_ObjectOptions(opt->opts);
1746 QTAILQ_REMOVE(&object_opts, opt, next);
1747 g_free(opt);
1748 }
1749 }
1750 }
1751
1752 static void object_option_add_visitor(Visitor *v)
1753 {
1754 ObjectOption *opt = g_new0(ObjectOption, 1);
1755 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1756 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1757 }
1758
1759 static void object_option_parse(const char *optarg)
1760 {
1761 QemuOpts *opts;
1762 const char *type;
1763 Visitor *v;
1764
1765 if (optarg[0] == '{') {
1766 QObject *obj = qobject_from_json(optarg, &error_fatal);
1767
1768 v = qobject_input_visitor_new(obj);
1769 qobject_unref(obj);
1770 } else {
1771 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1772 optarg, true);
1773 if (!opts) {
1774 exit(1);
1775 }
1776
1777 type = qemu_opt_get(opts, "qom-type");
1778 if (!type) {
1779 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1780 }
1781 if (user_creatable_print_help(type, opts)) {
1782 exit(0);
1783 }
1784
1785 v = opts_visitor_new(opts);
1786 }
1787
1788 object_option_add_visitor(v);
1789 visit_free(v);
1790 }
1791
1792 /*
1793 * Initial object creation happens before all other
1794 * QEMU data types are created. The majority of objects
1795 * can be created at this point. The rng-egd object
1796 * cannot be created here, as it depends on the chardev
1797 * already existing.
1798 */
1799 static bool object_create_early(const char *type)
1800 {
1801 /*
1802 * Objects should not be made "delayed" without a reason. If you
1803 * add one, state the reason in a comment!
1804 */
1805
1806 /* Reason: property "chardev" */
1807 if (g_str_equal(type, "rng-egd") ||
1808 g_str_equal(type, "qtest")) {
1809 return false;
1810 }
1811
1812 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1813 /* Reason: cryptodev-vhost-user property "chardev" */
1814 if (g_str_equal(type, "cryptodev-vhost-user")) {
1815 return false;
1816 }
1817 #endif
1818
1819 /* Reason: vhost-user-blk-server property "node-name" */
1820 if (g_str_equal(type, "vhost-user-blk-server")) {
1821 return false;
1822 }
1823 /*
1824 * Reason: filter-* property "netdev" etc.
1825 */
1826 if (g_str_equal(type, "filter-buffer") ||
1827 g_str_equal(type, "filter-dump") ||
1828 g_str_equal(type, "filter-mirror") ||
1829 g_str_equal(type, "filter-redirector") ||
1830 g_str_equal(type, "colo-compare") ||
1831 g_str_equal(type, "filter-rewriter") ||
1832 g_str_equal(type, "filter-replay")) {
1833 return false;
1834 }
1835
1836 /*
1837 * Allocation of large amounts of memory may delay
1838 * chardev initialization for too long, and trigger timeouts
1839 * on software that waits for a monitor socket to be created
1840 * (e.g. libvirt).
1841 */
1842 if (g_str_has_prefix(type, "memory-backend-")) {
1843 return false;
1844 }
1845
1846 return true;
1847 }
1848
1849 static void qemu_apply_machine_options(QDict *qdict)
1850 {
1851 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1852 const char *boot_order = NULL;
1853 const char *boot_once = NULL;
1854 QemuOpts *opts;
1855
1856 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1857 current_machine->ram_size = ram_size;
1858 current_machine->maxram_size = maxram_size;
1859 current_machine->ram_slots = ram_slots;
1860
1861 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
1862 if (opts) {
1863 boot_order = qemu_opt_get(opts, "order");
1864 if (boot_order) {
1865 validate_bootdevices(boot_order, &error_fatal);
1866 }
1867
1868 boot_once = qemu_opt_get(opts, "once");
1869 if (boot_once) {
1870 validate_bootdevices(boot_once, &error_fatal);
1871 }
1872
1873 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
1874 boot_strict = qemu_opt_get_bool(opts, "strict", false);
1875 }
1876
1877 if (!boot_order) {
1878 boot_order = machine_class->default_boot_order;
1879 }
1880
1881 current_machine->boot_order = boot_order;
1882 current_machine->boot_once = boot_once;
1883
1884 if (semihosting_enabled() && !semihosting_get_argc()) {
1885 /* fall back to the -kernel/-append */
1886 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1887 }
1888
1889 if (current_machine->smp.cpus > 1) {
1890 Error *blocker = NULL;
1891 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1892 replay_add_blocker(blocker);
1893 }
1894 }
1895
1896 static void qemu_create_early_backends(void)
1897 {
1898 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1899 #if defined(CONFIG_SDL)
1900 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1901 #else
1902 const bool use_sdl = false;
1903 #endif
1904 #if defined(CONFIG_GTK)
1905 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1906 #else
1907 const bool use_gtk = false;
1908 #endif
1909
1910 if ((alt_grab || ctrl_grab) && !use_sdl) {
1911 error_report("-alt-grab and -ctrl-grab are only valid "
1912 "for SDL, ignoring option");
1913 }
1914 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1915 error_report("-no-quit is only valid for GTK and SDL, "
1916 "ignoring option");
1917 }
1918
1919 qemu_display_early_init(&dpy);
1920 qemu_console_early_init();
1921
1922 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1923 #if defined(CONFIG_OPENGL)
1924 error_report("OpenGL is not supported by the display");
1925 #else
1926 error_report("OpenGL support is disabled");
1927 #endif
1928 exit(1);
1929 }
1930
1931 object_option_foreach_add(object_create_early);
1932
1933 /* spice needs the timers to be initialized by this point */
1934 /* spice must initialize before audio as it changes the default auiodev */
1935 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1936 qemu_spice.init();
1937
1938 qemu_opts_foreach(qemu_find_opts("chardev"),
1939 chardev_init_func, NULL, &error_fatal);
1940
1941 #ifdef CONFIG_VIRTFS
1942 qemu_opts_foreach(qemu_find_opts("fsdev"),
1943 fsdev_init_func, NULL, &error_fatal);
1944 #endif
1945
1946 /*
1947 * Note: we need to create audio and block backends before
1948 * setting machine properties, so they can be referred to.
1949 */
1950 configure_blockdev(&bdo_queue, machine_class, snapshot);
1951 audio_init_audiodevs();
1952 }
1953
1954
1955 /*
1956 * The remainder of object creation happens after the
1957 * creation of chardev, fsdev, net clients and device data types.
1958 */
1959 static bool object_create_late(const char *type)
1960 {
1961 return !object_create_early(type);
1962 }
1963
1964 static void qemu_create_late_backends(void)
1965 {
1966 if (qtest_chrdev) {
1967 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
1968 }
1969
1970 net_init_clients(&error_fatal);
1971
1972 object_option_foreach_add(object_create_late);
1973
1974 if (tpm_init() < 0) {
1975 exit(1);
1976 }
1977
1978 qemu_opts_foreach(qemu_find_opts("mon"),
1979 mon_init_func, NULL, &error_fatal);
1980
1981 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
1982 exit(1);
1983 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
1984 exit(1);
1985 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
1986 exit(1);
1987
1988 /* now chardevs have been created we may have semihosting to connect */
1989 qemu_semihosting_connect_chardevs();
1990 qemu_semihosting_console_init();
1991 }
1992
1993 static bool have_custom_ram_size(void)
1994 {
1995 QemuOpts *opts = qemu_find_opts_singleton("memory");
1996 return !!qemu_opt_get_size(opts, "size", 0);
1997 }
1998
1999 static void qemu_resolve_machine_memdev(void)
2000 {
2001 if (current_machine->ram_memdev_id) {
2002 Object *backend;
2003 ram_addr_t backend_size;
2004
2005 backend = object_resolve_path_type(current_machine->ram_memdev_id,
2006 TYPE_MEMORY_BACKEND, NULL);
2007 if (!backend) {
2008 error_report("Memory backend '%s' not found",
2009 current_machine->ram_memdev_id);
2010 exit(EXIT_FAILURE);
2011 }
2012 backend_size = object_property_get_uint(backend, "size", &error_abort);
2013 if (have_custom_ram_size() && backend_size != ram_size) {
2014 error_report("Size specified by -m option must match size of "
2015 "explicitly specified 'memory-backend' property");
2016 exit(EXIT_FAILURE);
2017 }
2018 if (mem_path) {
2019 error_report("'-mem-path' can't be used together with"
2020 "'-machine memory-backend'");
2021 exit(EXIT_FAILURE);
2022 }
2023 ram_size = backend_size;
2024 }
2025
2026 if (!xen_enabled()) {
2027 /* On 32-bit hosts, QEMU is limited by virtual address space */
2028 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
2029 error_report("at most 2047 MB RAM can be simulated");
2030 exit(1);
2031 }
2032 }
2033 }
2034
2035 static void set_memory_options(MachineClass *mc)
2036 {
2037 uint64_t sz;
2038 const char *mem_str;
2039 const ram_addr_t default_ram_size = mc->default_ram_size;
2040 QemuOpts *opts = qemu_find_opts_singleton("memory");
2041 Location loc;
2042
2043 loc_push_none(&loc);
2044 qemu_opts_loc_restore(opts);
2045
2046 sz = 0;
2047 mem_str = qemu_opt_get(opts, "size");
2048 if (mem_str) {
2049 if (!*mem_str) {
2050 error_report("missing 'size' option value");
2051 exit(EXIT_FAILURE);
2052 }
2053
2054 sz = qemu_opt_get_size(opts, "size", ram_size);
2055
2056 /* Fix up legacy suffix-less format */
2057 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2058 uint64_t overflow_check = sz;
2059
2060 sz *= MiB;
2061 if (sz / MiB != overflow_check) {
2062 error_report("too large 'size' option value");
2063 exit(EXIT_FAILURE);
2064 }
2065 }
2066 }
2067
2068 /* backward compatibility behaviour for case "-m 0" */
2069 if (sz == 0) {
2070 sz = default_ram_size;
2071 }
2072
2073 sz = QEMU_ALIGN_UP(sz, 8192);
2074 if (mc->fixup_ram_size) {
2075 sz = mc->fixup_ram_size(sz);
2076 }
2077 ram_size = sz;
2078 if (ram_size != sz) {
2079 error_report("ram size too large");
2080 exit(EXIT_FAILURE);
2081 }
2082
2083 maxram_size = ram_size;
2084
2085 if (qemu_opt_get(opts, "maxmem")) {
2086 uint64_t slots;
2087
2088 sz = qemu_opt_get_size(opts, "maxmem", 0);
2089 slots = qemu_opt_get_number(opts, "slots", 0);
2090 if (sz < ram_size) {
2091 error_report("invalid value of -m option maxmem: "
2092 "maximum memory size (0x%" PRIx64 ") must be at least "
2093 "the initial memory size (0x" RAM_ADDR_FMT ")",
2094 sz, ram_size);
2095 exit(EXIT_FAILURE);
2096 } else if (slots && sz == ram_size) {
2097 error_report("invalid value of -m option maxmem: "
2098 "memory slots were specified but maximum memory size "
2099 "(0x%" PRIx64 ") is equal to the initial memory size "
2100 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2101 exit(EXIT_FAILURE);
2102 }
2103
2104 maxram_size = sz;
2105 ram_slots = slots;
2106 } else if (qemu_opt_get(opts, "slots")) {
2107 error_report("invalid -m option value: missing 'maxmem' option");
2108 exit(EXIT_FAILURE);
2109 }
2110
2111 loc_pop(&loc);
2112 }
2113
2114 static void qemu_create_machine(QDict *qdict)
2115 {
2116 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2117 object_set_machine_compat_props(machine_class->compat_props);
2118
2119 set_memory_options(machine_class);
2120
2121 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2122 object_property_add_child(object_get_root(), "machine",
2123 OBJECT(current_machine));
2124 object_property_add_child(container_get(OBJECT(current_machine),
2125 "/unattached"),
2126 "sysbus", OBJECT(sysbus_get_default()));
2127
2128 if (machine_class->minimum_page_bits) {
2129 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2130 /* This would be a board error: specifying a minimum smaller than
2131 * a target's compile-time fixed setting.
2132 */
2133 g_assert_not_reached();
2134 }
2135 }
2136
2137 cpu_exec_init_all();
2138 page_size_init();
2139
2140 if (machine_class->hw_version) {
2141 qemu_set_hw_version(machine_class->hw_version);
2142 }
2143
2144 /*
2145 * Get the default machine options from the machine if it is not already
2146 * specified either by the configuration file or by the command line.
2147 */
2148 if (machine_class->default_machine_opts) {
2149 QDict *default_opts =
2150 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2151 &error_abort);
2152 qemu_apply_legacy_machine_options(default_opts);
2153 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2154 false, &error_abort);
2155 qobject_unref(default_opts);
2156 }
2157 }
2158
2159 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2160 {
2161 GlobalProperty *g;
2162
2163 g = g_malloc0(sizeof(*g));
2164 g->driver = qemu_opt_get(opts, "driver");
2165 g->property = qemu_opt_get(opts, "property");
2166 g->value = qemu_opt_get(opts, "value");
2167 qdev_prop_register_global(g);
2168 return 0;
2169 }
2170
2171 /*
2172 * Return whether configuration group @group is stored in QemuOpts, or
2173 * recorded as one or more QDicts by qemu_record_config_group.
2174 */
2175 static bool is_qemuopts_group(const char *group)
2176 {
2177 if (g_str_equal(group, "object") ||
2178 g_str_equal(group, "machine") ||
2179 g_str_equal(group, "smp-opts")) {
2180 return false;
2181 }
2182 return true;
2183 }
2184
2185 static void qemu_record_config_group(const char *group, QDict *dict,
2186 bool from_json, Error **errp)
2187 {
2188 if (g_str_equal(group, "object")) {
2189 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2190 object_option_add_visitor(v);
2191 visit_free(v);
2192 } else if (g_str_equal(group, "machine")) {
2193 /*
2194 * Cannot merge string-valued and type-safe dictionaries, so JSON
2195 * is not accepted yet for -M.
2196 */
2197 assert(!from_json);
2198 keyval_merge(machine_opts_dict, dict, errp);
2199 } else if (g_str_equal(group, "smp-opts")) {
2200 machine_merge_property("smp", dict, &error_fatal);
2201 } else {
2202 abort();
2203 }
2204 }
2205
2206 /*
2207 * Parse non-QemuOpts config file groups, pass the rest to
2208 * qemu_config_do_parse.
2209 */
2210 static void qemu_parse_config_group(const char *group, QDict *qdict,
2211 void *opaque, Error **errp)
2212 {
2213 QObject *crumpled;
2214 if (is_qemuopts_group(group)) {
2215 qemu_config_do_parse(group, qdict, opaque, errp);
2216 return;
2217 }
2218
2219 crumpled = qdict_crumple(qdict, errp);
2220 if (!crumpled) {
2221 return;
2222 }
2223 switch (qobject_type(crumpled)) {
2224 case QTYPE_QDICT:
2225 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2226 break;
2227 case QTYPE_QLIST:
2228 error_setg(errp, "Lists cannot be at top level of a configuration section");
2229 break;
2230 default:
2231 g_assert_not_reached();
2232 }
2233 qobject_unref(crumpled);
2234 }
2235
2236 static void qemu_read_default_config_file(Error **errp)
2237 {
2238 ERRP_GUARD();
2239 int ret;
2240 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2241
2242 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2243 if (ret < 0) {
2244 if (ret == -ENOENT) {
2245 error_free(*errp);
2246 *errp = NULL;
2247 }
2248 }
2249 }
2250
2251 static void qemu_set_option(const char *str, Error **errp)
2252 {
2253 char group[64], id[64], arg[64];
2254 QemuOptsList *list;
2255 QemuOpts *opts;
2256 int rc, offset;
2257
2258 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2259 if (rc < 3 || str[offset] != '=') {
2260 error_setg(errp, "can't parse: \"%s\"", str);
2261 return;
2262 }
2263
2264 if (!is_qemuopts_group(group)) {
2265 error_setg(errp, "-set is not supported with %s", group);
2266 } else {
2267 list = qemu_find_opts_err(group, errp);
2268 if (list) {
2269 opts = qemu_opts_find(list, id);
2270 if (!opts) {
2271 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2272 return;
2273 }
2274 qemu_opt_set(opts, arg, str + offset + 1, errp);
2275 }
2276 }
2277 }
2278
2279 static void user_register_global_props(void)
2280 {
2281 qemu_opts_foreach(qemu_find_opts("global"),
2282 global_init_func, NULL, NULL);
2283 }
2284
2285 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2286 {
2287 icount_configure(opts, errp);
2288 return 0;
2289 }
2290
2291 static int accelerator_set_property(void *opaque,
2292 const char *name, const char *value,
2293 Error **errp)
2294 {
2295 return object_parse_property_opt(opaque, name, value, "accel", errp);
2296 }
2297
2298 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2299 {
2300 bool *p_init_failed = opaque;
2301 const char *acc = qemu_opt_get(opts, "accel");
2302 AccelClass *ac = accel_find(acc);
2303 AccelState *accel;
2304 int ret;
2305 bool qtest_with_kvm;
2306
2307 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2308
2309 if (!ac) {
2310 *p_init_failed = true;
2311 if (!qtest_with_kvm) {
2312 error_report("invalid accelerator %s", acc);
2313 }
2314 return 0;
2315 }
2316 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2317 object_apply_compat_props(OBJECT(accel));
2318 qemu_opt_foreach(opts, accelerator_set_property,
2319 accel,
2320 &error_fatal);
2321
2322 ret = accel_init_machine(accel, current_machine);
2323 if (ret < 0) {
2324 *p_init_failed = true;
2325 if (!qtest_with_kvm || ret != -ENOENT) {
2326 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2327 }
2328 return 0;
2329 }
2330
2331 return 1;
2332 }
2333
2334 static void configure_accelerators(const char *progname)
2335 {
2336 bool init_failed = false;
2337
2338 qemu_opts_foreach(qemu_find_opts("icount"),
2339 do_configure_icount, NULL, &error_fatal);
2340
2341 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2342 char **accel_list, **tmp;
2343
2344 if (accelerators == NULL) {
2345 /* Select the default accelerator */
2346 bool have_tcg = accel_find("tcg");
2347 bool have_kvm = accel_find("kvm");
2348
2349 if (have_tcg && have_kvm) {
2350 if (g_str_has_suffix(progname, "kvm")) {
2351 /* If the program name ends with "kvm", we prefer KVM */
2352 accelerators = "kvm:tcg";
2353 } else {
2354 accelerators = "tcg:kvm";
2355 }
2356 } else if (have_kvm) {
2357 accelerators = "kvm";
2358 } else if (have_tcg) {
2359 accelerators = "tcg";
2360 } else {
2361 error_report("No accelerator selected and"
2362 " no default accelerator available");
2363 exit(1);
2364 }
2365 }
2366 accel_list = g_strsplit(accelerators, ":", 0);
2367
2368 for (tmp = accel_list; *tmp; tmp++) {
2369 /*
2370 * Filter invalid accelerators here, to prevent obscenities
2371 * such as "-machine accel=tcg,,thread=single".
2372 */
2373 if (accel_find(*tmp)) {
2374 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2375 } else {
2376 init_failed = true;
2377 error_report("invalid accelerator %s", *tmp);
2378 }
2379 }
2380 g_strfreev(accel_list);
2381 } else {
2382 if (accelerators != NULL) {
2383 error_report("The -accel and \"-machine accel=\" options are incompatible");
2384 exit(1);
2385 }
2386 }
2387
2388 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2389 do_configure_accelerator, &init_failed, &error_fatal)) {
2390 if (!init_failed) {
2391 error_report("no accelerator found");
2392 }
2393 exit(1);
2394 }
2395
2396 if (init_failed && !qtest_chrdev) {
2397 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2398 error_report("falling back to %s", ac->name);
2399 }
2400
2401 if (icount_enabled() && !tcg_enabled()) {
2402 error_report("-icount is not allowed with hardware virtualization");
2403 exit(1);
2404 }
2405 }
2406
2407 static void create_default_memdev(MachineState *ms, const char *path)
2408 {
2409 Object *obj;
2410 MachineClass *mc = MACHINE_GET_CLASS(ms);
2411
2412 obj = object_new(path ? TYPE_MEMORY_BACKEND_FILE : TYPE_MEMORY_BACKEND_RAM);
2413 if (path) {
2414 object_property_set_str(obj, "mem-path", path, &error_fatal);
2415 }
2416 object_property_set_int(obj, "size", ms->ram_size, &error_fatal);
2417 object_property_add_child(object_get_objects_root(), mc->default_ram_id,
2418 obj);
2419 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2420 object_property_set_bool(obj, "x-use-canonical-path-for-ramblock-id",
2421 false, &error_fatal);
2422 user_creatable_complete(USER_CREATABLE(obj), &error_fatal);
2423 object_unref(obj);
2424 object_property_set_str(OBJECT(ms), "memory-backend", mc->default_ram_id,
2425 &error_fatal);
2426 }
2427
2428 static void qemu_validate_options(const QDict *machine_opts)
2429 {
2430 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2431 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2432 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2433
2434 if (kernel_filename == NULL) {
2435 if (kernel_cmdline != NULL) {
2436 error_report("-append only allowed with -kernel option");
2437 exit(1);
2438 }
2439
2440 if (initrd_filename != NULL) {
2441 error_report("-initrd only allowed with -kernel option");
2442 exit(1);
2443 }
2444 }
2445
2446 if (loadvm && preconfig_requested) {
2447 error_report("'preconfig' and 'loadvm' options are "
2448 "mutually exclusive");
2449 exit(EXIT_FAILURE);
2450 }
2451 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2452 error_report("'preconfig' supports '-incoming defer' only");
2453 exit(EXIT_FAILURE);
2454 }
2455
2456 #ifdef CONFIG_CURSES
2457 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2458 error_report("curses display cannot be used with -daemonize");
2459 exit(1);
2460 }
2461 #endif
2462 }
2463
2464 static void qemu_process_sugar_options(void)
2465 {
2466 if (mem_prealloc) {
2467 QObject *smp = qdict_get(machine_opts_dict, "smp");
2468 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2469 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2470 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2471 const char *val = qstring_get_str(qobject_to(QString, cpus));
2472 object_register_sugar_prop("memory-backend", "prealloc-threads",
2473 val, false);
2474 }
2475 }
2476 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2477 }
2478
2479 if (watchdog) {
2480 int i = select_watchdog(watchdog);
2481 if (i > 0)
2482 exit (i == 1 ? 1 : 0);
2483 }
2484 }
2485
2486 /* -action processing */
2487
2488 /*
2489 * Process all the -action parameters parsed from cmdline.
2490 */
2491 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2492 {
2493 Error *local_err = NULL;
2494 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2495 QObject *ret = NULL;
2496 qmp_marshal_set_action(qdict, &ret, &local_err);
2497 qobject_unref(ret);
2498 qobject_unref(qdict);
2499 if (local_err) {
2500 error_propagate(errp, local_err);
2501 return 1;
2502 }
2503 return 0;
2504 }
2505
2506 static void qemu_process_early_options(void)
2507 {
2508 #ifdef CONFIG_SECCOMP
2509 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2510 if (olist) {
2511 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2512 }
2513 #endif
2514
2515 qemu_opts_foreach(qemu_find_opts("name"),
2516 parse_name, NULL, &error_fatal);
2517
2518 if (qemu_opts_foreach(qemu_find_opts("action"),
2519 process_runstate_actions, NULL, &error_fatal)) {
2520 exit(1);
2521 }
2522
2523 #ifndef _WIN32
2524 qemu_opts_foreach(qemu_find_opts("add-fd"),
2525 parse_add_fd, NULL, &error_fatal);
2526
2527 qemu_opts_foreach(qemu_find_opts("add-fd"),
2528 cleanup_add_fd, NULL, &error_fatal);
2529 #endif
2530
2531 /* Open the logfile at this point and set the log mask if necessary. */
2532 if (log_file) {
2533 qemu_set_log_filename(log_file, &error_fatal);
2534 }
2535 if (log_mask) {
2536 int mask;
2537 mask = qemu_str_to_log_mask(log_mask);
2538 if (!mask) {
2539 qemu_print_log_usage(stdout);
2540 exit(1);
2541 }
2542 qemu_set_log(mask);
2543 } else {
2544 qemu_set_log(0);
2545 }
2546
2547 qemu_add_default_firmwarepath();
2548 }
2549
2550 static void qemu_process_help_options(void)
2551 {
2552 /*
2553 * Check for -cpu help and -device help before we call select_machine(),
2554 * which will return an error if the architecture has no default machine
2555 * type and the user did not specify one, so that the user doesn't need
2556 * to say '-cpu help -machine something'.
2557 */
2558 if (cpu_option && is_help_option(cpu_option)) {
2559 list_cpus(cpu_option);
2560 exit(0);
2561 }
2562
2563 if (qemu_opts_foreach(qemu_find_opts("device"),
2564 device_help_func, NULL, NULL)) {
2565 exit(0);
2566 }
2567
2568 /* -L help lists the data directories and exits. */
2569 if (list_data_dirs) {
2570 qemu_list_data_dirs();
2571 exit(0);
2572 }
2573 }
2574
2575 static void qemu_maybe_daemonize(const char *pid_file)
2576 {
2577 Error *err = NULL;
2578
2579 os_daemonize();
2580 rcu_disable_atfork();
2581
2582 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
2583 error_reportf_err(err, "cannot create PID file: ");
2584 exit(1);
2585 }
2586
2587 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
2588 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
2589 }
2590
2591 static void qemu_init_displays(void)
2592 {
2593 DisplayState *ds;
2594
2595 /* init local displays */
2596 ds = init_displaystate();
2597 qemu_display_init(ds, &dpy);
2598
2599 /* must be after terminal init, SDL library changes signal handlers */
2600 os_setup_signal_handling();
2601
2602 /* init remote displays */
2603 #ifdef CONFIG_VNC
2604 qemu_opts_foreach(qemu_find_opts("vnc"),
2605 vnc_init_func, NULL, &error_fatal);
2606 #endif
2607
2608 if (using_spice) {
2609 qemu_spice.display_init();
2610 }
2611 }
2612
2613 static void qemu_init_board(void)
2614 {
2615 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
2616
2617 if (machine_class->default_ram_id && current_machine->ram_size &&
2618 numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
2619 create_default_memdev(current_machine, mem_path);
2620 }
2621
2622 /* process plugin before CPUs are created, but once -smp has been parsed */
2623 qemu_plugin_load_list(&plugin_list, &error_fatal);
2624
2625 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2626 machine_run_board_init(current_machine);
2627
2628 drive_check_orphaned();
2629
2630 realtime_init();
2631
2632 if (hax_enabled()) {
2633 /* FIXME: why isn't cpu_synchronize_all_post_init enough? */
2634 hax_sync_vcpus();
2635 }
2636 }
2637
2638 static void qemu_create_cli_devices(void)
2639 {
2640 soundhw_init();
2641
2642 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2643 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2644
2645 /* init USB devices */
2646 if (machine_usb(current_machine)) {
2647 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2648 exit(1);
2649 }
2650
2651 /* init generic devices */
2652 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2653 qemu_opts_foreach(qemu_find_opts("device"),
2654 device_init_func, NULL, &error_fatal);
2655 rom_reset_order_override();
2656 }
2657
2658 static void qemu_machine_creation_done(void)
2659 {
2660 MachineState *machine = MACHINE(qdev_get_machine());
2661
2662 /* Did we create any drives that we failed to create a device for? */
2663 drive_check_orphaned();
2664
2665 /* Don't warn about the default network setup that you get if
2666 * no command line -net or -netdev options are specified. There
2667 * are two cases that we would otherwise complain about:
2668 * (1) board doesn't support a NIC but the implicit "-net nic"
2669 * requested one
2670 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2671 * sets up a nic that isn't connected to anything.
2672 */
2673 if (!default_net && (!qtest_enabled() || has_defaults)) {
2674 net_check_clients();
2675 }
2676
2677 qdev_prop_check_globals();
2678
2679 qdev_machine_creation_done();
2680
2681 if (machine->cgs) {
2682 /*
2683 * Verify that Confidential Guest Support has actually been initialized
2684 */
2685 assert(machine->cgs->ready);
2686 }
2687
2688 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2689 exit(1);
2690 }
2691 }
2692
2693 void qmp_x_exit_preconfig(Error **errp)
2694 {
2695 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2696 error_setg(errp, "The command is permitted only before machine initialization");
2697 return;
2698 }
2699
2700 qemu_init_board();
2701 qemu_create_cli_devices();
2702 qemu_machine_creation_done();
2703
2704 if (loadvm) {
2705 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2706 }
2707 if (replay_mode != REPLAY_MODE_NONE) {
2708 replay_vmstate_init();
2709 }
2710
2711 if (incoming) {
2712 Error *local_err = NULL;
2713 if (strcmp(incoming, "defer") != 0) {
2714 qmp_migrate_incoming(incoming, &local_err);
2715 if (local_err) {
2716 error_reportf_err(local_err, "-incoming %s: ", incoming);
2717 exit(1);
2718 }
2719 }
2720 } else if (autostart) {
2721 qmp_cont(NULL);
2722 }
2723 }
2724
2725 void qemu_init(int argc, char **argv, char **envp)
2726 {
2727 QemuOpts *opts;
2728 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2729 QemuOptsList *olist;
2730 int optind;
2731 const char *optarg;
2732 MachineClass *machine_class;
2733 bool userconfig = true;
2734 FILE *vmstate_dump_file = NULL;
2735
2736 qemu_add_opts(&qemu_drive_opts);
2737 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2738 qemu_add_drive_opts(&qemu_common_drive_opts);
2739 qemu_add_drive_opts(&qemu_drive_opts);
2740 qemu_add_drive_opts(&bdrv_runtime_opts);
2741 qemu_add_opts(&qemu_chardev_opts);
2742 qemu_add_opts(&qemu_device_opts);
2743 qemu_add_opts(&qemu_netdev_opts);
2744 qemu_add_opts(&qemu_nic_opts);
2745 qemu_add_opts(&qemu_net_opts);
2746 qemu_add_opts(&qemu_rtc_opts);
2747 qemu_add_opts(&qemu_global_opts);
2748 qemu_add_opts(&qemu_mon_opts);
2749 qemu_add_opts(&qemu_trace_opts);
2750 qemu_plugin_add_opts();
2751 qemu_add_opts(&qemu_option_rom_opts);
2752 qemu_add_opts(&qemu_accel_opts);
2753 qemu_add_opts(&qemu_mem_opts);
2754 qemu_add_opts(&qemu_smp_opts);
2755 qemu_add_opts(&qemu_boot_opts);
2756 qemu_add_opts(&qemu_add_fd_opts);
2757 qemu_add_opts(&qemu_object_opts);
2758 qemu_add_opts(&qemu_tpmdev_opts);
2759 qemu_add_opts(&qemu_overcommit_opts);
2760 qemu_add_opts(&qemu_msg_opts);
2761 qemu_add_opts(&qemu_name_opts);
2762 qemu_add_opts(&qemu_numa_opts);
2763 qemu_add_opts(&qemu_icount_opts);
2764 qemu_add_opts(&qemu_semihosting_config_opts);
2765 qemu_add_opts(&qemu_fw_cfg_opts);
2766 qemu_add_opts(&qemu_action_opts);
2767 module_call_init(MODULE_INIT_OPTS);
2768
2769 error_init(argv[0]);
2770 qemu_init_exec_dir(argv[0]);
2771
2772 #ifdef CONFIG_MODULES
2773 module_init_info(qemu_modinfo);
2774 module_allow_arch(TARGET_NAME);
2775 #endif
2776
2777 qemu_init_subsystems();
2778
2779 /* first pass of option parsing */
2780 optind = 1;
2781 while (optind < argc) {
2782 if (argv[optind][0] != '-') {
2783 /* disk image */
2784 optind++;
2785 } else {
2786 const QEMUOption *popt;
2787
2788 popt = lookup_opt(argc, argv, &optarg, &optind);
2789 switch (popt->index) {
2790 case QEMU_OPTION_nouserconfig:
2791 userconfig = false;
2792 break;
2793 }
2794 }
2795 }
2796
2797 machine_opts_dict = qdict_new();
2798 if (userconfig) {
2799 qemu_read_default_config_file(&error_fatal);
2800 }
2801
2802 /* second pass of option parsing */
2803 optind = 1;
2804 for(;;) {
2805 if (optind >= argc)
2806 break;
2807 if (argv[optind][0] != '-') {
2808 loc_set_cmdline(argv, optind, 1);
2809 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2810 } else {
2811 const QEMUOption *popt;
2812
2813 popt = lookup_opt(argc, argv, &optarg, &optind);
2814 if (!(popt->arch_mask & arch_type)) {
2815 error_report("Option not supported for this target");
2816 exit(1);
2817 }
2818 switch(popt->index) {
2819 case QEMU_OPTION_cpu:
2820 /* hw initialization will check this */
2821 cpu_option = optarg;
2822 break;
2823 case QEMU_OPTION_hda:
2824 case QEMU_OPTION_hdb:
2825 case QEMU_OPTION_hdc:
2826 case QEMU_OPTION_hdd:
2827 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2828 HD_OPTS);
2829 break;
2830 case QEMU_OPTION_blockdev:
2831 {
2832 Visitor *v;
2833 BlockdevOptionsQueueEntry *bdo;
2834
2835 v = qobject_input_visitor_new_str(optarg, "driver",
2836 &error_fatal);
2837
2838 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2839 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2840 &error_fatal);
2841 visit_free(v);
2842 loc_save(&bdo->loc);
2843 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2844 break;
2845 }
2846 case QEMU_OPTION_drive:
2847 if (drive_def(optarg) == NULL) {
2848 exit(1);
2849 }
2850 break;
2851 case QEMU_OPTION_set:
2852 qemu_set_option(optarg, &error_fatal);
2853 break;
2854 case QEMU_OPTION_global:
2855 if (qemu_global_option(optarg) != 0)
2856 exit(1);
2857 break;
2858 case QEMU_OPTION_mtdblock:
2859 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2860 break;
2861 case QEMU_OPTION_sd:
2862 drive_add(IF_SD, -1, optarg, SD_OPTS);
2863 break;
2864 case QEMU_OPTION_pflash:
2865 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2866 break;
2867 case QEMU_OPTION_snapshot:
2868 {
2869 Error *blocker = NULL;
2870 snapshot = 1;
2871 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
2872 "-snapshot");
2873 replay_add_blocker(blocker);
2874 }
2875 break;
2876 case QEMU_OPTION_numa:
2877 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2878 optarg, true);
2879 if (!opts) {
2880 exit(1);
2881 }
2882 break;
2883 case QEMU_OPTION_display:
2884 parse_display(optarg);
2885 break;
2886 case QEMU_OPTION_nographic:
2887 qdict_put_str(machine_opts_dict, "graphics", "off");
2888 nographic = true;
2889 dpy.type = DISPLAY_TYPE_NONE;
2890 break;
2891 case QEMU_OPTION_curses:
2892 warn_report("-curses is deprecated, "
2893 "use -display curses instead.");
2894 #ifdef CONFIG_CURSES
2895 dpy.type = DISPLAY_TYPE_CURSES;
2896 #else
2897 error_report("curses or iconv support is disabled");
2898 exit(1);
2899 #endif
2900 break;
2901 case QEMU_OPTION_portrait:
2902 graphic_rotate = 90;
2903 break;
2904 case QEMU_OPTION_rotate:
2905 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2906 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2907 graphic_rotate != 180 && graphic_rotate != 270) {
2908 error_report("only 90, 180, 270 deg rotation is available");
2909 exit(1);
2910 }
2911 break;
2912 case QEMU_OPTION_kernel:
2913 qdict_put_str(machine_opts_dict, "kernel", optarg);
2914 break;
2915 case QEMU_OPTION_initrd:
2916 qdict_put_str(machine_opts_dict, "initrd", optarg);
2917 break;
2918 case QEMU_OPTION_append:
2919 qdict_put_str(machine_opts_dict, "append", optarg);
2920 break;
2921 case QEMU_OPTION_dtb:
2922 qdict_put_str(machine_opts_dict, "dtb", optarg);
2923 break;
2924 case QEMU_OPTION_cdrom:
2925 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2926 break;
2927 case QEMU_OPTION_boot:
2928 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
2929 optarg, true);
2930 if (!opts) {
2931 exit(1);
2932 }
2933 break;
2934 case QEMU_OPTION_fda:
2935 case QEMU_OPTION_fdb:
2936 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2937 optarg, FD_OPTS);
2938 break;
2939 case QEMU_OPTION_no_fd_bootchk:
2940 fd_bootchk = 0;
2941 break;
2942 case QEMU_OPTION_netdev:
2943 default_net = 0;
2944 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2945 exit(1);
2946 }
2947 break;
2948 case QEMU_OPTION_nic:
2949 default_net = 0;
2950 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
2951 exit(1);
2952 }
2953 break;
2954 case QEMU_OPTION_net:
2955 default_net = 0;
2956 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2957 exit(1);
2958 }
2959 break;
2960 #ifdef CONFIG_LIBISCSI
2961 case QEMU_OPTION_iscsi:
2962 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2963 optarg, false);
2964 if (!opts) {
2965 exit(1);
2966 }
2967 break;
2968 #endif
2969 case QEMU_OPTION_audio_help:
2970 audio_legacy_help();
2971 exit (0);
2972 break;
2973 case QEMU_OPTION_audiodev:
2974 audio_parse_option(optarg);
2975 break;
2976 case QEMU_OPTION_soundhw:
2977 select_soundhw (optarg);
2978 break;
2979 case QEMU_OPTION_h:
2980 help(0);
2981 break;
2982 case QEMU_OPTION_version:
2983 version();
2984 exit(0);
2985 break;
2986 case QEMU_OPTION_m:
2987 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
2988 optarg, true);
2989 if (!opts) {
2990 exit(EXIT_FAILURE);
2991 }
2992 break;
2993 #ifdef CONFIG_TPM
2994 case QEMU_OPTION_tpmdev:
2995 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
2996 exit(1);
2997 }
2998 break;
2999 #endif
3000 case QEMU_OPTION_mempath:
3001 mem_path = optarg;
3002 break;
3003 case QEMU_OPTION_mem_prealloc:
3004 mem_prealloc = 1;
3005 break;
3006 case QEMU_OPTION_d:
3007 log_mask = optarg;
3008 break;
3009 case QEMU_OPTION_D:
3010 log_file = optarg;
3011 break;
3012 case QEMU_OPTION_DFILTER:
3013 qemu_set_dfilter_ranges(optarg, &error_fatal);
3014 break;
3015 case QEMU_OPTION_seed:
3016 qemu_guest_random_seed_main(optarg, &error_fatal);
3017 break;
3018 case QEMU_OPTION_s:
3019 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3020 break;
3021 case QEMU_OPTION_gdb:
3022 add_device_config(DEV_GDB, optarg);
3023 break;
3024 case QEMU_OPTION_L:
3025 if (is_help_option(optarg)) {
3026 list_data_dirs = true;
3027 } else {
3028 qemu_add_data_dir(g_strdup(optarg));
3029 }
3030 break;
3031 case QEMU_OPTION_bios:
3032 qdict_put_str(machine_opts_dict, "firmware", optarg);
3033 break;
3034 case QEMU_OPTION_singlestep:
3035 singlestep = 1;
3036 break;
3037 case QEMU_OPTION_S:
3038 autostart = 0;
3039 break;
3040 case QEMU_OPTION_k:
3041 keyboard_layout = optarg;
3042 break;
3043 case QEMU_OPTION_vga:
3044 vga_model = optarg;
3045 default_vga = 0;
3046 break;
3047 case QEMU_OPTION_g:
3048 {
3049 const char *p;
3050 int w, h, depth;
3051 p = optarg;
3052 w = strtol(p, (char **)&p, 10);
3053 if (w <= 0) {
3054 graphic_error:
3055 error_report("invalid resolution or depth");
3056 exit(1);
3057 }
3058 if (*p != 'x')
3059 goto graphic_error;
3060 p++;
3061 h = strtol(p, (char **)&p, 10);
3062 if (h <= 0)
3063 goto graphic_error;
3064 if (*p == 'x') {
3065 p++;
3066 depth = strtol(p, (char **)&p, 10);
3067 if (depth != 1 && depth != 2 && depth != 4 &&
3068 depth != 8 && depth != 15 && depth != 16 &&
3069 depth != 24 && depth != 32)
3070 goto graphic_error;
3071 } else if (*p == '\0') {
3072 depth = graphic_depth;
3073 } else {
3074 goto graphic_error;
3075 }
3076
3077 graphic_width = w;
3078 graphic_height = h;
3079 graphic_depth = depth;
3080 }
3081 break;
3082 case QEMU_OPTION_echr:
3083 {
3084 char *r;
3085 term_escape_char = strtol(optarg, &r, 0);
3086 if (r == optarg)
3087 printf("Bad argument to echr\n");
3088 break;
3089 }
3090 case QEMU_OPTION_monitor:
3091 default_monitor = 0;
3092 if (strncmp(optarg, "none", 4)) {
3093 monitor_parse(optarg, "readline", false);
3094 }
3095 break;
3096 case QEMU_OPTION_qmp:
3097 monitor_parse(optarg, "control", false);
3098 default_monitor = 0;
3099 break;
3100 case QEMU_OPTION_qmp_pretty:
3101 monitor_parse(optarg, "control", true);
3102 default_monitor = 0;
3103 break;
3104 case QEMU_OPTION_mon:
3105 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3106 true);
3107 if (!opts) {
3108 exit(1);
3109 }
3110 default_monitor = 0;
3111 break;
3112 case QEMU_OPTION_chardev:
3113 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3114 optarg, true);
3115 if (!opts) {
3116 exit(1);
3117 }
3118 break;
3119 case QEMU_OPTION_fsdev:
3120 olist = qemu_find_opts("fsdev");
3121 if (!olist) {
3122 error_report("fsdev support is disabled");
3123 exit(1);
3124 }
3125 opts = qemu_opts_parse_noisily(olist, optarg, true);
3126 if (!opts) {
3127 exit(1);
3128 }
3129 break;
3130 case QEMU_OPTION_virtfs: {
3131 QemuOpts *fsdev;
3132 QemuOpts *device;
3133 const char *writeout, *sock_fd, *socket, *path, *security_model,
3134 *multidevs;
3135
3136 olist = qemu_find_opts("virtfs");
3137 if (!olist) {
3138 error_report("virtfs support is disabled");
3139 exit(1);
3140 }
3141 opts = qemu_opts_parse_noisily(olist, optarg, true);
3142 if (!opts) {
3143 exit(1);
3144 }
3145
3146 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3147 qemu_opt_get(opts, "mount_tag") == NULL) {
3148 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3149 exit(1);
3150 }
3151 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3152 qemu_opts_id(opts) ?:
3153 qemu_opt_get(opts, "mount_tag"),
3154 1, NULL);
3155 if (!fsdev) {
3156 error_report("duplicate or invalid fsdev id: %s",
3157 qemu_opt_get(opts, "mount_tag"));
3158 exit(1);
3159 }
3160
3161 writeout = qemu_opt_get(opts, "writeout");
3162 if (writeout) {
3163 #ifdef CONFIG_SYNC_FILE_RANGE
3164 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3165 #else
3166 error_report("writeout=immediate not supported "
3167 "on this platform");
3168 exit(1);
3169 #endif
3170 }
3171 qemu_opt_set(fsdev, "fsdriver",
3172 qemu_opt_get(opts, "fsdriver"), &error_abort);
3173 path = qemu_opt_get(opts, "path");
3174 if (path) {
3175 qemu_opt_set(fsdev, "path", path, &error_abort);
3176 }
3177 security_model = qemu_opt_get(opts, "security_model");
3178 if (security_model) {
3179 qemu_opt_set(fsdev, "security_model", security_model,
3180 &error_abort);
3181 }
3182 socket = qemu_opt_get(opts, "socket");
3183 if (socket) {
3184 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3185 }
3186 sock_fd = qemu_opt_get(opts, "sock_fd");
3187 if (sock_fd) {
3188 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3189 }
3190
3191 qemu_opt_set_bool(fsdev, "readonly",
3192 qemu_opt_get_bool(opts, "readonly", 0),
3193 &error_abort);
3194 multidevs = qemu_opt_get(opts, "multidevs");
3195 if (multidevs) {
3196 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3197 }
3198 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3199 &error_abort);
3200 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3201 qemu_opt_set(device, "fsdev",
3202 qemu_opts_id(fsdev), &error_abort);
3203 qemu_opt_set(device, "mount_tag",
3204 qemu_opt_get(opts, "mount_tag"), &error_abort);
3205 break;
3206 }
3207 case QEMU_OPTION_serial:
3208 add_device_config(DEV_SERIAL, optarg);
3209 default_serial = 0;
3210 if (strncmp(optarg, "mon:", 4) == 0) {
3211 default_monitor = 0;
3212 }
3213 break;
3214 case QEMU_OPTION_watchdog:
3215 if (watchdog) {
3216 error_report("only one watchdog option may be given");
3217 exit(1);
3218 }
3219 watchdog = optarg;
3220 break;
3221 case QEMU_OPTION_action:
3222 olist = qemu_find_opts("action");
3223 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3224 exit(1);
3225 }
3226 break;
3227 case QEMU_OPTION_watchdog_action:
3228 if (select_watchdog_action(optarg) == -1) {
3229 error_report("unknown -watchdog-action parameter");
3230 exit(1);
3231 }
3232 break;
3233 case QEMU_OPTION_parallel:
3234 add_device_config(DEV_PARALLEL, optarg);
3235 default_parallel = 0;
3236 if (strncmp(optarg, "mon:", 4) == 0) {
3237 default_monitor = 0;
3238 }
3239 break;
3240 case QEMU_OPTION_debugcon:
3241 add_device_config(DEV_DEBUGCON, optarg);
3242 break;
3243 case QEMU_OPTION_loadvm:
3244 loadvm = optarg;
3245 break;
3246 case QEMU_OPTION_full_screen:
3247 dpy.has_full_screen = true;
3248 dpy.full_screen = true;
3249 break;
3250 case QEMU_OPTION_alt_grab:
3251 alt_grab = 1;
3252 warn_report("-alt-grab is deprecated, please use "
3253 "-display sdl,grab-mod=lshift-lctrl-lalt instead.");
3254 break;
3255 case QEMU_OPTION_ctrl_grab:
3256 ctrl_grab = 1;
3257 warn_report("-ctrl-grab is deprecated, please use "
3258 "-display sdl,grab-mod=rctrl instead.");
3259 break;
3260 case QEMU_OPTION_no_quit:
3261 dpy.has_window_close = true;
3262 dpy.window_close = false;
3263 warn_report("-no-quit is deprecated, please use "
3264 "-display ...,window-close=off instead.");
3265 break;
3266 case QEMU_OPTION_sdl:
3267 warn_report("-sdl is deprecated, use -display sdl instead.");
3268 #ifdef CONFIG_SDL
3269 dpy.type = DISPLAY_TYPE_SDL;
3270 break;
3271 #else
3272 error_report("SDL support is disabled");
3273 exit(1);
3274 #endif
3275 case QEMU_OPTION_pidfile:
3276 pid_file = optarg;
3277 break;
3278 case QEMU_OPTION_win2k_hack:
3279 win2k_install_hack = 1;
3280 break;
3281 case QEMU_OPTION_acpitable:
3282 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3283 optarg, true);
3284 if (!opts) {
3285 exit(1);
3286 }
3287 acpi_table_add(opts, &error_fatal);
3288 break;
3289 case QEMU_OPTION_smbios:
3290 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3291 optarg, false);
3292 if (!opts) {
3293 exit(1);
3294 }
3295 smbios_entry_add(opts, &error_fatal);
3296 break;
3297 case QEMU_OPTION_fwcfg:
3298 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3299 optarg, true);
3300 if (opts == NULL) {
3301 exit(1);
3302 }
3303 break;
3304 case QEMU_OPTION_preconfig:
3305 preconfig_requested = true;
3306 break;
3307 case QEMU_OPTION_enable_kvm:
3308 qdict_put_str(machine_opts_dict, "accel", "kvm");
3309 break;
3310 case QEMU_OPTION_M:
3311 case QEMU_OPTION_machine:
3312 {
3313 bool help;
3314
3315 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3316 if (help) {
3317 machine_help_func(machine_opts_dict);
3318 exit(EXIT_SUCCESS);
3319 }
3320 break;
3321 }
3322 case QEMU_OPTION_accel:
3323 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3324 optarg, true);
3325 optarg = qemu_opt_get(accel_opts, "accel");
3326 if (!optarg || is_help_option(optarg)) {
3327 printf("Accelerators supported in QEMU binary:\n");
3328 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3329 false);
3330 for (el = accel_list; el; el = el->next) {
3331 gchar *typename = g_strdup(object_class_get_name(
3332 OBJECT_CLASS(el->data)));
3333 /* omit qtest which is used for tests only */
3334 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3335 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3336 gchar **optname = g_strsplit(typename,
3337 ACCEL_CLASS_SUFFIX, 0);
3338 printf("%s\n", optname[0]);
3339 g_strfreev(optname);
3340 }
3341 g_free(typename);
3342 }
3343 g_slist_free(accel_list);
3344 exit(0);
3345 }
3346 break;
3347 case QEMU_OPTION_usb:
3348 qdict_put_str(machine_opts_dict, "usb", "on");
3349 break;
3350 case QEMU_OPTION_usbdevice:
3351 qdict_put_str(machine_opts_dict, "usb", "on");
3352 add_device_config(DEV_USB, optarg);
3353 break;
3354 case QEMU_OPTION_device:
3355 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3356 optarg, true)) {
3357 exit(1);
3358 }
3359 break;
3360 case QEMU_OPTION_smp:
3361 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3362 "smp", optarg);
3363 break;
3364 case QEMU_OPTION_vnc:
3365 vnc_parse(optarg);
3366 break;
3367 case QEMU_OPTION_no_acpi:
3368 qdict_put_str(machine_opts_dict, "acpi", "off");
3369 break;
3370 case QEMU_OPTION_no_hpet:
3371 qdict_put_str(machine_opts_dict, "hpet", "off");
3372 break;
3373 case QEMU_OPTION_no_reboot:
3374 olist = qemu_find_opts("action");
3375 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3376 break;
3377 case QEMU_OPTION_no_shutdown:
3378 olist = qemu_find_opts("action");
3379 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3380 break;
3381 case QEMU_OPTION_uuid:
3382 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3383 error_report("failed to parse UUID string: wrong format");
3384 exit(1);
3385 }
3386 qemu_uuid_set = true;
3387 break;
3388 case QEMU_OPTION_option_rom:
3389 if (nb_option_roms >= MAX_OPTION_ROMS) {
3390 error_report("too many option ROMs");
3391 exit(1);
3392 }
3393 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3394 optarg, true);
3395 if (!opts) {
3396 exit(1);
3397 }
3398 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3399 option_rom[nb_option_roms].bootindex =
3400 qemu_opt_get_number(opts, "bootindex", -1);
3401 if (!option_rom[nb_option_roms].name) {
3402 error_report("Option ROM file is not specified");
3403 exit(1);
3404 }
3405 nb_option_roms++;
3406 break;
3407 case QEMU_OPTION_semihosting:
3408 qemu_semihosting_enable();
3409 break;
3410 case QEMU_OPTION_semihosting_config:
3411 if (qemu_semihosting_config_options(optarg) != 0) {
3412 exit(1);
3413 }
3414 break;
3415 case QEMU_OPTION_name:
3416 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3417 optarg, true);
3418 if (!opts) {
3419 exit(1);
3420 }
3421 /* Capture guest name if -msg guest-name is used later */
3422 error_guest_name = qemu_opt_get(opts, "guest");
3423 break;
3424 case QEMU_OPTION_prom_env:
3425 if (nb_prom_envs >= MAX_PROM_ENVS) {
3426 error_report("too many prom variables");
3427 exit(1);
3428 }
3429 prom_envs[nb_prom_envs] = optarg;
3430 nb_prom_envs++;
3431 break;
3432 case QEMU_OPTION_old_param:
3433 old_param = 1;
3434 break;
3435 case QEMU_OPTION_rtc:
3436 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3437 false);
3438 if (!opts) {
3439 exit(1);
3440 }
3441 break;
3442 case QEMU_OPTION_icount:
3443 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3444 optarg, true);
3445 if (!icount_opts) {
3446 exit(1);
3447 }
3448 break;
3449 case QEMU_OPTION_incoming:
3450 if (!incoming) {
3451 runstate_set(RUN_STATE_INMIGRATE);
3452 }
3453 incoming = optarg;
3454 break;
3455 case QEMU_OPTION_only_migratable:
3456 only_migratable = 1;
3457 break;
3458 case QEMU_OPTION_nodefaults:
3459 has_defaults = 0;
3460 break;
3461 case QEMU_OPTION_xen_domid:
3462 if (!(accel_find("xen"))) {
3463 error_report("Option not supported for this target");
3464 exit(1);
3465 }
3466 xen_domid = atoi(optarg);
3467 break;
3468 case QEMU_OPTION_xen_attach:
3469 if (!(accel_find("xen"))) {
3470 error_report("Option not supported for this target");
3471 exit(1);
3472 }
3473 xen_mode = XEN_ATTACH;
3474 break;
3475 case QEMU_OPTION_xen_domid_restrict:
3476 if (!(accel_find("xen"))) {
3477 error_report("Option not supported for this target");
3478 exit(1);
3479 }
3480 xen_domid_restrict = true;
3481 break;
3482 case QEMU_OPTION_trace:
3483 trace_opt_parse(optarg);
3484 break;
3485 case QEMU_OPTION_plugin:
3486 qemu_plugin_opt_parse(optarg, &plugin_list);
3487 break;
3488 case QEMU_OPTION_readconfig:
3489 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3490 break;
3491 case QEMU_OPTION_spice:
3492 olist = qemu_find_opts_err("spice", NULL);
3493 if (!olist) {
3494 error_report("spice support is disabled");
3495 exit(1);
3496 }
3497 opts = qemu_opts_parse_noisily(olist, optarg, false);
3498 if (!opts) {
3499 exit(1);
3500 }
3501 display_remote++;
3502 break;
3503 case QEMU_OPTION_writeconfig:
3504 {
3505 FILE *fp;
3506 warn_report("-writeconfig is deprecated and will go away without a replacement");
3507 if (strcmp(optarg, "-") == 0) {
3508 fp = stdout;
3509 } else {
3510 fp = fopen(optarg, "w");
3511 if (fp == NULL) {
3512 error_report("open %s: %s", optarg,
3513 strerror(errno));
3514 exit(1);
3515 }
3516 }
3517 qemu_config_write(fp);
3518 if (fp != stdout) {
3519 fclose(fp);
3520 }
3521 break;
3522 }
3523 case QEMU_OPTION_qtest:
3524 qtest_chrdev = optarg;
3525 break;
3526 case QEMU_OPTION_qtest_log:
3527 qtest_log = optarg;
3528 break;
3529 case QEMU_OPTION_sandbox:
3530 olist = qemu_find_opts("sandbox");
3531 if (!olist) {
3532 #ifndef CONFIG_SECCOMP
3533 error_report("-sandbox support is not enabled "
3534 "in this QEMU binary");
3535 #endif
3536 exit(1);
3537 }
3538
3539 opts = qemu_opts_parse_noisily(olist, optarg, true);
3540 if (!opts) {
3541 exit(1);
3542 }
3543 break;
3544 case QEMU_OPTION_add_fd:
3545 #ifndef _WIN32
3546 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3547 optarg, false);
3548 if (!opts) {
3549 exit(1);
3550 }
3551 #else
3552 error_report("File descriptor passing is disabled on this "
3553 "platform");
3554 exit(1);
3555 #endif
3556 break;
3557 case QEMU_OPTION_object:
3558 object_option_parse(optarg);
3559 break;
3560 case QEMU_OPTION_overcommit:
3561 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3562 optarg, false);
3563 if (!opts) {
3564 exit(1);
3565 }
3566 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3567 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3568 break;
3569 case QEMU_OPTION_compat:
3570 {
3571 CompatPolicy *opts;
3572 Visitor *v;
3573
3574 v = qobject_input_visitor_new_str(optarg, NULL,
3575 &error_fatal);
3576
3577 visit_type_CompatPolicy(v, NULL, &opts, &error_fatal);
3578 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts);
3579
3580 qapi_free_CompatPolicy(opts);
3581 visit_free(v);
3582 break;
3583 }
3584 case QEMU_OPTION_msg:
3585 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3586 false);
3587 if (!opts) {
3588 exit(1);
3589 }
3590 configure_msg(opts);
3591 break;
3592 case QEMU_OPTION_dump_vmstate:
3593 if (vmstate_dump_file) {
3594 error_report("only one '-dump-vmstate' "
3595 "option may be given");
3596 exit(1);
3597 }
3598 vmstate_dump_file = fopen(optarg, "w");
3599 if (vmstate_dump_file == NULL) {
3600 error_report("open %s: %s", optarg, strerror(errno));
3601 exit(1);
3602 }
3603 break;
3604 case QEMU_OPTION_enable_sync_profile:
3605 qsp_enable();
3606 break;
3607 case QEMU_OPTION_nouserconfig:
3608 /* Nothing to be parsed here. Especially, do not error out below. */
3609 break;
3610 default:
3611 if (os_parse_cmd_args(popt->index, optarg)) {
3612 error_report("Option not supported in this build");
3613 exit(1);
3614 }
3615 }
3616 }
3617 }
3618 /*
3619 * Clear error location left behind by the loop.
3620 * Best done right after the loop. Do not insert code here!
3621 */
3622 loc_set_none();
3623
3624 qemu_validate_options(machine_opts_dict);
3625 qemu_process_sugar_options();
3626
3627 /*
3628 * These options affect everything else and should be processed
3629 * before daemonizing.
3630 */
3631 qemu_process_early_options();
3632
3633 qemu_process_help_options();
3634 qemu_maybe_daemonize(pid_file);
3635
3636 /*
3637 * The trace backend must be initialized after daemonizing.
3638 * trace_init_backends() will call st_init(), which will create the
3639 * trace thread in the parent, and also register st_flush_trace_buffer()
3640 * in atexit(). This function will force the parent to wait for the
3641 * writeout thread to finish, which will not occur, and the parent
3642 * process will be left in the host.
3643 */
3644 if (!trace_init_backends()) {
3645 exit(1);
3646 }
3647 trace_init_file();
3648
3649 qemu_init_main_loop(&error_fatal);
3650 cpu_timers_init();
3651
3652 user_register_global_props();
3653 replay_configure(icount_opts);
3654
3655 configure_rtc(qemu_find_opts_singleton("rtc"));
3656
3657 qemu_create_machine(machine_opts_dict);
3658
3659 suspend_mux_open();
3660
3661 qemu_disable_default_devices();
3662 qemu_create_default_devices();
3663 qemu_create_early_backends();
3664
3665 qemu_apply_legacy_machine_options(machine_opts_dict);
3666 qemu_apply_machine_options(machine_opts_dict);
3667 qobject_unref(machine_opts_dict);
3668 phase_advance(PHASE_MACHINE_CREATED);
3669
3670 /*
3671 * Note: uses machine properties such as kernel-irqchip, must run
3672 * after qemu_apply_machine_options.
3673 */
3674 configure_accelerators(argv[0]);
3675 phase_advance(PHASE_ACCEL_CREATED);
3676
3677 /*
3678 * Beware, QOM objects created before this point miss global and
3679 * compat properties.
3680 *
3681 * Global properties get set up by qdev_prop_register_global(),
3682 * called from user_register_global_props(), and certain option
3683 * desugaring. Also in CPU feature desugaring (buried in
3684 * parse_cpu_option()), which happens below this point, but may
3685 * only target the CPU type, which can only be created after
3686 * parse_cpu_option() returned the type.
3687 *
3688 * Machine compat properties: object_set_machine_compat_props().
3689 * Accelerator compat props: object_set_accelerator_compat_props(),
3690 * called from do_configure_accelerator().
3691 */
3692
3693 machine_class = MACHINE_GET_CLASS(current_machine);
3694 if (!qtest_enabled() && machine_class->deprecation_reason) {
3695 error_report("Machine type '%s' is deprecated: %s",
3696 machine_class->name, machine_class->deprecation_reason);
3697 }
3698
3699 /*
3700 * Note: creates a QOM object, must run only after global and
3701 * compat properties have been set up.
3702 */
3703 migration_object_init();
3704
3705 qemu_create_late_backends();
3706
3707 /* parse features once if machine provides default cpu_type */
3708 current_machine->cpu_type = machine_class->default_cpu_type;
3709 if (cpu_option) {
3710 current_machine->cpu_type = parse_cpu_option(cpu_option);
3711 }
3712 /* NB: for machine none cpu_type could STILL be NULL here! */
3713
3714 qemu_resolve_machine_memdev();
3715 parse_numa_opts(current_machine);
3716
3717 if (vmstate_dump_file) {
3718 /* dump and exit */
3719 dump_vmstate_json_to_file(vmstate_dump_file);
3720 exit(0);
3721 }
3722
3723 if (!preconfig_requested) {
3724 qmp_x_exit_preconfig(&error_fatal);
3725 }
3726 qemu_init_displays();
3727 accel_setup_post(current_machine);
3728 os_setup_post();
3729 resume_mux_open();
3730 }
AR7 emulation for QEMU