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target/ppc: Change MSR_* to follow POWER ISA numbering convention
[qemu/rayw.git] / softmmu / vl.c
blobc2919579fd9760b147e3971bdb4932df84cf5867
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu/help-texts.h"
27 #include "qemu/datadir.h"
28 #include "qemu/units.h"
29 #include "exec/cpu-common.h"
30 #include "exec/page-vary.h"
31 #include "hw/qdev-properties.h"
32 #include "qapi/compat-policy.h"
33 #include "qapi/error.h"
34 #include "qapi/qmp/qdict.h"
35 #include "qapi/qmp/qstring.h"
36 #include "qapi/qmp/qjson.h"
37 #include "qemu-version.h"
38 #include "qemu/cutils.h"
39 #include "qemu/help_option.h"
40 #include "qemu/hw-version.h"
41 #include "qemu/uuid.h"
42 #include "sysemu/reset.h"
43 #include "sysemu/runstate.h"
44 #include "sysemu/runstate-action.h"
45 #include "sysemu/seccomp.h"
46 #include "sysemu/tcg.h"
47 #include "sysemu/xen.h"
48
49 #include "qemu/error-report.h"
50 #include "qemu/sockets.h"
51 #include "qemu/accel.h"
52 #include "hw/usb.h"
53 #include "hw/isa/isa.h"
54 #include "hw/scsi/scsi.h"
55 #include "hw/display/vga.h"
56 #include "sysemu/watchdog.h"
57 #include "hw/firmware/smbios.h"
58 #include "hw/acpi/acpi.h"
59 #include "hw/xen/xen.h"
60 #include "hw/loader.h"
61 #include "monitor/qdev.h"
62 #include "net/net.h"
63 #include "net/slirp.h"
64 #include "monitor/monitor.h"
65 #include "ui/console.h"
66 #include "ui/input.h"
67 #include "sysemu/sysemu.h"
68 #include "sysemu/numa.h"
69 #include "sysemu/hostmem.h"
70 #include "exec/gdbstub.h"
71 #include "qemu/timer.h"
72 #include "chardev/char.h"
73 #include "qemu/bitmap.h"
74 #include "qemu/log.h"
75 #include "sysemu/blockdev.h"
76 #include "hw/block/block.h"
77 #include "hw/i386/x86.h"
78 #include "hw/i386/pc.h"
79 #include "migration/misc.h"
80 #include "migration/snapshot.h"
81 #include "sysemu/tpm.h"
82 #include "sysemu/dma.h"
83 #include "hw/audio/soundhw.h"
84 #include "audio/audio.h"
85 #include "sysemu/cpus.h"
86 #include "sysemu/cpu-timers.h"
87 #include "migration/colo.h"
88 #include "migration/postcopy-ram.h"
89 #include "sysemu/kvm.h"
90 #include "sysemu/hax.h"
91 #include "qapi/qobject-input-visitor.h"
92 #include "qemu/option.h"
93 #include "qemu/config-file.h"
94 #include "qemu/qemu-options.h"
95 #include "qemu/main-loop.h"
96 #ifdef CONFIG_VIRTFS
97 #include "fsdev/qemu-fsdev.h"
98 #endif
99 #include "sysemu/qtest.h"
100
101 #include "disas/disas.h"
102
103 #include "trace.h"
104 #include "trace/control.h"
105 #include "qemu/plugin.h"
106 #include "qemu/queue.h"
107 #include "sysemu/arch_init.h"
108 #include "exec/confidential-guest-support.h"
109
110 #include "ui/qemu-spice.h"
111 #include "qapi/string-input-visitor.h"
112 #include "qapi/opts-visitor.h"
113 #include "qapi/clone-visitor.h"
114 #include "qom/object_interfaces.h"
115 #include "semihosting/semihost.h"
116 #include "crypto/init.h"
117 #include "sysemu/replay.h"
118 #include "qapi/qapi-events-run-state.h"
119 #include "qapi/qapi-visit-block-core.h"
120 #include "qapi/qapi-visit-compat.h"
121 #include "qapi/qapi-visit-ui.h"
122 #include "qapi/qapi-commands-block-core.h"
123 #include "qapi/qapi-commands-migration.h"
124 #include "qapi/qapi-commands-misc.h"
125 #include "qapi/qapi-visit-qom.h"
126 #include "qapi/qapi-commands-ui.h"
127 #include "qapi/qmp/qdict.h"
128 #include "block/qdict.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
132 #include "qemu/keyval.h"
133
134 #include "config-host.h"
135
136 #define MAX_VIRTIO_CONSOLES 1
137
138 typedef struct BlockdevOptionsQueueEntry {
139 BlockdevOptions *bdo;
140 Location loc;
141 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
142 } BlockdevOptionsQueueEntry;
143
144 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
145
146 typedef struct ObjectOption {
147 ObjectOptions *opts;
148 QTAILQ_ENTRY(ObjectOption) next;
149 } ObjectOption;
150
151 typedef struct DeviceOption {
152 QDict *opts;
153 Location loc;
154 QTAILQ_ENTRY(DeviceOption) next;
155 } DeviceOption;
156
157 static const char *cpu_option;
158 static const char *mem_path;
159 static const char *incoming;
160 static const char *loadvm;
161 static const char *accelerators;
162 static QDict *machine_opts_dict;
163 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
164 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
165 static ram_addr_t maxram_size;
166 static uint64_t ram_slots;
167 static int display_remote;
168 static int snapshot;
169 static bool preconfig_requested;
170 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
171 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
172 static bool nographic = false;
173 static int mem_prealloc; /* force preallocation of physical target memory */
174 static ram_addr_t ram_size;
175 static const char *vga_model = NULL;
176 static DisplayOptions dpy;
177 static int num_serial_hds;
178 static Chardev **serial_hds;
179 static const char *log_mask;
180 static const char *log_file;
181 static bool list_data_dirs;
182 static const char *watchdog;
183 static const char *qtest_chrdev;
184 static const char *qtest_log;
185
186 static int has_defaults = 1;
187 static int default_serial = 1;
188 static int default_parallel = 1;
189 static int default_monitor = 1;
190 static int default_floppy = 1;
191 static int default_cdrom = 1;
192 static int default_sdcard = 1;
193 static int default_vga = 1;
194 static int default_net = 1;
195
196 static struct {
197 const char *driver;
198 int *flag;
199 } default_list[] = {
200 { .driver = "isa-serial", .flag = &default_serial },
201 { .driver = "isa-parallel", .flag = &default_parallel },
202 { .driver = "isa-fdc", .flag = &default_floppy },
203 { .driver = "floppy", .flag = &default_floppy },
204 { .driver = "ide-cd", .flag = &default_cdrom },
205 { .driver = "ide-hd", .flag = &default_cdrom },
206 { .driver = "scsi-cd", .flag = &default_cdrom },
207 { .driver = "scsi-hd", .flag = &default_cdrom },
208 { .driver = "VGA", .flag = &default_vga },
209 { .driver = "isa-vga", .flag = &default_vga },
210 { .driver = "cirrus-vga", .flag = &default_vga },
211 { .driver = "isa-cirrus-vga", .flag = &default_vga },
212 { .driver = "vmware-svga", .flag = &default_vga },
213 { .driver = "qxl-vga", .flag = &default_vga },
214 { .driver = "virtio-vga", .flag = &default_vga },
215 { .driver = "ati-vga", .flag = &default_vga },
216 { .driver = "vhost-user-vga", .flag = &default_vga },
217 { .driver = "virtio-vga-gl", .flag = &default_vga },
218 };
219
220 static QemuOptsList qemu_rtc_opts = {
221 .name = "rtc",
222 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
223 .merge_lists = true,
224 .desc = {
225 {
226 .name = "base",
227 .type = QEMU_OPT_STRING,
228 },{
229 .name = "clock",
230 .type = QEMU_OPT_STRING,
231 },{
232 .name = "driftfix",
233 .type = QEMU_OPT_STRING,
234 },
235 { /* end of list */ }
236 },
237 };
238
239 static QemuOptsList qemu_option_rom_opts = {
240 .name = "option-rom",
241 .implied_opt_name = "romfile",
242 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
243 .desc = {
244 {
245 .name = "bootindex",
246 .type = QEMU_OPT_NUMBER,
247 }, {
248 .name = "romfile",
249 .type = QEMU_OPT_STRING,
250 },
251 { /* end of list */ }
252 },
253 };
254
255 static QemuOptsList qemu_accel_opts = {
256 .name = "accel",
257 .implied_opt_name = "accel",
258 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
259 .desc = {
260 /*
261 * no elements => accept any
262 * sanity checking will happen later
263 * when setting accelerator properties
264 */
265 { }
266 },
267 };
268
269 static QemuOptsList qemu_boot_opts = {
270 .name = "boot-opts",
271 .implied_opt_name = "order",
272 .merge_lists = true,
273 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
274 .desc = {
275 {
276 .name = "order",
277 .type = QEMU_OPT_STRING,
278 }, {
279 .name = "once",
280 .type = QEMU_OPT_STRING,
281 }, {
282 .name = "menu",
283 .type = QEMU_OPT_BOOL,
284 }, {
285 .name = "splash",
286 .type = QEMU_OPT_STRING,
287 }, {
288 .name = "splash-time",
289 .type = QEMU_OPT_NUMBER,
290 }, {
291 .name = "reboot-timeout",
292 .type = QEMU_OPT_NUMBER,
293 }, {
294 .name = "strict",
295 .type = QEMU_OPT_BOOL,
296 },
297 { /*End of list */ }
298 },
299 };
300
301 static QemuOptsList qemu_add_fd_opts = {
302 .name = "add-fd",
303 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
304 .desc = {
305 {
306 .name = "fd",
307 .type = QEMU_OPT_NUMBER,
308 .help = "file descriptor of which a duplicate is added to fd set",
309 },{
310 .name = "set",
311 .type = QEMU_OPT_NUMBER,
312 .help = "ID of the fd set to add fd to",
313 },{
314 .name = "opaque",
315 .type = QEMU_OPT_STRING,
316 .help = "free-form string used to describe fd",
317 },
318 { /* end of list */ }
319 },
320 };
321
322 static QemuOptsList qemu_object_opts = {
323 .name = "object",
324 .implied_opt_name = "qom-type",
325 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
326 .desc = {
327 { }
328 },
329 };
330
331 static QemuOptsList qemu_tpmdev_opts = {
332 .name = "tpmdev",
333 .implied_opt_name = "type",
334 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
335 .desc = {
336 /* options are defined in the TPM backends */
337 { /* end of list */ }
338 },
339 };
340
341 static QemuOptsList qemu_overcommit_opts = {
342 .name = "overcommit",
343 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
344 .desc = {
345 {
346 .name = "mem-lock",
347 .type = QEMU_OPT_BOOL,
348 },
349 {
350 .name = "cpu-pm",
351 .type = QEMU_OPT_BOOL,
352 },
353 { /* end of list */ }
354 },
355 };
356
357 static QemuOptsList qemu_msg_opts = {
358 .name = "msg",
359 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
360 .desc = {
361 {
362 .name = "timestamp",
363 .type = QEMU_OPT_BOOL,
364 },
365 {
366 .name = "guest-name",
367 .type = QEMU_OPT_BOOL,
368 .help = "Prepends guest name for error messages but only if "
369 "-name guest is set otherwise option is ignored\n",
370 },
371 { /* end of list */ }
372 },
373 };
374
375 static QemuOptsList qemu_name_opts = {
376 .name = "name",
377 .implied_opt_name = "guest",
378 .merge_lists = true,
379 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
380 .desc = {
381 {
382 .name = "guest",
383 .type = QEMU_OPT_STRING,
384 .help = "Sets the name of the guest.\n"
385 "This name will be displayed in the SDL window caption.\n"
386 "The name will also be used for the VNC server",
387 }, {
388 .name = "process",
389 .type = QEMU_OPT_STRING,
390 .help = "Sets the name of the QEMU process, as shown in top etc",
391 }, {
392 .name = "debug-threads",
393 .type = QEMU_OPT_BOOL,
394 .help = "When enabled, name the individual threads; defaults off.\n"
395 "NOTE: The thread names are for debugging and not a\n"
396 "stable API.",
397 },
398 { /* End of list */ }
399 },
400 };
401
402 static QemuOptsList qemu_mem_opts = {
403 .name = "memory",
404 .implied_opt_name = "size",
405 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
406 .merge_lists = true,
407 .desc = {
408 {
409 .name = "size",
410 .type = QEMU_OPT_SIZE,
411 },
412 {
413 .name = "slots",
414 .type = QEMU_OPT_NUMBER,
415 },
416 {
417 .name = "maxmem",
418 .type = QEMU_OPT_SIZE,
419 },
420 { /* end of list */ }
421 },
422 };
423
424 static QemuOptsList qemu_icount_opts = {
425 .name = "icount",
426 .implied_opt_name = "shift",
427 .merge_lists = true,
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
429 .desc = {
430 {
431 .name = "shift",
432 .type = QEMU_OPT_STRING,
433 }, {
434 .name = "align",
435 .type = QEMU_OPT_BOOL,
436 }, {
437 .name = "sleep",
438 .type = QEMU_OPT_BOOL,
439 }, {
440 .name = "rr",
441 .type = QEMU_OPT_STRING,
442 }, {
443 .name = "rrfile",
444 .type = QEMU_OPT_STRING,
445 }, {
446 .name = "rrsnapshot",
447 .type = QEMU_OPT_STRING,
448 },
449 { /* end of list */ }
450 },
451 };
452
453 static QemuOptsList qemu_fw_cfg_opts = {
454 .name = "fw_cfg",
455 .implied_opt_name = "name",
456 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
457 .desc = {
458 {
459 .name = "name",
460 .type = QEMU_OPT_STRING,
461 .help = "Sets the fw_cfg name of the blob to be inserted",
462 }, {
463 .name = "file",
464 .type = QEMU_OPT_STRING,
465 .help = "Sets the name of the file from which "
466 "the fw_cfg blob will be loaded",
467 }, {
468 .name = "string",
469 .type = QEMU_OPT_STRING,
470 .help = "Sets content of the blob to be inserted from a string",
471 }, {
472 .name = "gen_id",
473 .type = QEMU_OPT_STRING,
474 .help = "Sets id of the object generating the fw_cfg blob "
475 "to be inserted",
476 },
477 { /* end of list */ }
478 },
479 };
480
481 static QemuOptsList qemu_action_opts = {
482 .name = "action",
483 .merge_lists = true,
484 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
485 .desc = {
486 {
487 .name = "shutdown",
488 .type = QEMU_OPT_STRING,
489 },{
490 .name = "reboot",
491 .type = QEMU_OPT_STRING,
492 },{
493 .name = "panic",
494 .type = QEMU_OPT_STRING,
495 },{
496 .name = "watchdog",
497 .type = QEMU_OPT_STRING,
498 },
499 { /* end of list */ }
500 },
501 };
502
503 const char *qemu_get_vm_name(void)
504 {
505 return qemu_name;
506 }
507
508 static void default_driver_disable(const char *driver)
509 {
510 int i;
511
512 if (!driver) {
513 return;
514 }
515
516 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
517 if (strcmp(default_list[i].driver, driver) != 0)
518 continue;
519 *(default_list[i].flag) = 0;
520 }
521 }
522
523 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
524 {
525 const char *driver = qemu_opt_get(opts, "driver");
526
527 default_driver_disable(driver);
528 return 0;
529 }
530
531 static void default_driver_check_json(void)
532 {
533 DeviceOption *opt;
534
535 QTAILQ_FOREACH(opt, &device_opts, next) {
536 const char *driver = qdict_get_try_str(opt->opts, "driver");
537 default_driver_disable(driver);
538 }
539 }
540
541 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
542 {
543 const char *proc_name;
544
545 if (qemu_opt_get(opts, "debug-threads")) {
546 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
547 }
548 qemu_name = qemu_opt_get(opts, "guest");
549
550 proc_name = qemu_opt_get(opts, "process");
551 if (proc_name) {
552 os_set_proc_name(proc_name);
553 }
554
555 return 0;
556 }
557
558 bool defaults_enabled(void)
559 {
560 return has_defaults;
561 }
562
563 #ifndef _WIN32
564 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
565 {
566 int fd, dupfd, flags;
567 int64_t fdset_id;
568 const char *fd_opaque = NULL;
569 AddfdInfo *fdinfo;
570
571 fd = qemu_opt_get_number(opts, "fd", -1);
572 fdset_id = qemu_opt_get_number(opts, "set", -1);
573 fd_opaque = qemu_opt_get(opts, "opaque");
574
575 if (fd < 0) {
576 error_setg(errp, "fd option is required and must be non-negative");
577 return -1;
578 }
579
580 if (fd <= STDERR_FILENO) {
581 error_setg(errp, "fd cannot be a standard I/O stream");
582 return -1;
583 }
584
585 /*
586 * All fds inherited across exec() necessarily have FD_CLOEXEC
587 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
588 */
589 flags = fcntl(fd, F_GETFD);
590 if (flags == -1 || (flags & FD_CLOEXEC)) {
591 error_setg(errp, "fd is not valid or already in use");
592 return -1;
593 }
594
595 if (fdset_id < 0) {
596 error_setg(errp, "set option is required and must be non-negative");
597 return -1;
598 }
599
600 #ifdef F_DUPFD_CLOEXEC
601 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
602 #else
603 dupfd = dup(fd);
604 if (dupfd != -1) {
605 qemu_set_cloexec(dupfd);
606 }
607 #endif
608 if (dupfd == -1) {
609 error_setg(errp, "error duplicating fd: %s", strerror(errno));
610 return -1;
611 }
612
613 /* add the duplicate fd, and optionally the opaque string, to the fd set */
614 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
615 &error_abort);
616 g_free(fdinfo);
617
618 return 0;
619 }
620
621 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
622 {
623 int fd;
624
625 fd = qemu_opt_get_number(opts, "fd", -1);
626 close(fd);
627
628 return 0;
629 }
630 #endif
631
632 /***********************************************************/
633 /* QEMU Block devices */
634
635 #define HD_OPTS "media=disk"
636 #define CDROM_OPTS "media=cdrom"
637 #define FD_OPTS ""
638 #define PFLASH_OPTS ""
639 #define MTD_OPTS ""
640 #define SD_OPTS ""
641
642 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
643 {
644 BlockInterfaceType *block_default_type = opaque;
645
646 return drive_new(opts, *block_default_type, errp) == NULL;
647 }
648
649 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
650 {
651 if (qemu_opt_get(opts, "snapshot") == NULL) {
652 qemu_opt_set(opts, "snapshot", "on", &error_abort);
653 }
654 return 0;
655 }
656
657 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
658 int index, const char *optstr)
659 {
660 QemuOpts *opts;
661 DriveInfo *dinfo;
662
663 if (!enable || drive_get_by_index(type, index)) {
664 return;
665 }
666
667 opts = drive_add(type, index, NULL, optstr);
668 if (snapshot) {
669 drive_enable_snapshot(NULL, opts, NULL);
670 }
671
672 dinfo = drive_new(opts, type, &error_abort);
673 dinfo->is_default = true;
674
675 }
676
677 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
678 MachineClass *machine_class, int snapshot)
679 {
680 /*
681 * If the currently selected machine wishes to override the
682 * units-per-bus property of its default HBA interface type, do so
683 * now.
684 */
685 if (machine_class->units_per_default_bus) {
686 override_max_devs(machine_class->block_default_type,
687 machine_class->units_per_default_bus);
688 }
689
690 /* open the virtual block devices */
691 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
692 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
693
694 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
695 loc_push_restore(&bdo->loc);
696 qmp_blockdev_add(bdo->bdo, &error_fatal);
697 loc_pop(&bdo->loc);
698 qapi_free_BlockdevOptions(bdo->bdo);
699 g_free(bdo);
700 }
701 if (snapshot) {
702 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
703 NULL, NULL);
704 }
705 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
706 &machine_class->block_default_type, &error_fatal)) {
707 /* We printed help */
708 exit(0);
709 }
710
711 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
712 CDROM_OPTS);
713 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
714 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
715
716 }
717
718 static QemuOptsList qemu_smp_opts = {
719 .name = "smp-opts",
720 .implied_opt_name = "cpus",
721 .merge_lists = true,
722 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
723 .desc = {
724 {
725 .name = "cpus",
726 .type = QEMU_OPT_NUMBER,
727 }, {
728 .name = "sockets",
729 .type = QEMU_OPT_NUMBER,
730 }, {
731 .name = "dies",
732 .type = QEMU_OPT_NUMBER,
733 }, {
734 .name = "clusters",
735 .type = QEMU_OPT_NUMBER,
736 }, {
737 .name = "cores",
738 .type = QEMU_OPT_NUMBER,
739 }, {
740 .name = "threads",
741 .type = QEMU_OPT_NUMBER,
742 }, {
743 .name = "maxcpus",
744 .type = QEMU_OPT_NUMBER,
745 },
746 { /*End of list */ }
747 },
748 };
749
750 static void realtime_init(void)
751 {
752 if (enable_mlock) {
753 if (os_mlock() < 0) {
754 error_report("locking memory failed");
755 exit(1);
756 }
757 }
758 }
759
760
761 static void configure_msg(QemuOpts *opts)
762 {
763 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
764 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
765 }
766
767
768 /***********************************************************/
769 /* USB devices */
770
771 static int usb_device_add(const char *devname)
772 {
773 USBDevice *dev = NULL;
774
775 if (!machine_usb(current_machine)) {
776 return -1;
777 }
778
779 dev = usbdevice_create(devname);
780 if (!dev)
781 return -1;
782
783 return 0;
784 }
785
786 static int usb_parse(const char *cmdline)
787 {
788 int r;
789 r = usb_device_add(cmdline);
790 if (r < 0) {
791 error_report("could not add USB device '%s'", cmdline);
792 }
793 return r;
794 }
795
796 /***********************************************************/
797 /* machine registration */
798
799 static MachineClass *find_machine(const char *name, GSList *machines)
800 {
801 GSList *el;
802
803 for (el = machines; el; el = el->next) {
804 MachineClass *mc = el->data;
805
806 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
807 return mc;
808 }
809 }
810
811 return NULL;
812 }
813
814 static MachineClass *find_default_machine(GSList *machines)
815 {
816 GSList *el;
817 MachineClass *default_machineclass = NULL;
818
819 for (el = machines; el; el = el->next) {
820 MachineClass *mc = el->data;
821
822 if (mc->is_default) {
823 assert(default_machineclass == NULL && "Multiple default machines");
824 default_machineclass = mc;
825 }
826 }
827
828 return default_machineclass;
829 }
830
831 static void version(void)
832 {
833 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
834 QEMU_COPYRIGHT "\n");
835 }
836
837 static void help(int exitcode)
838 {
839 version();
840 printf("usage: %s [options] [disk_image]\n\n"
841 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
842 g_get_prgname());
843
844 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
845 if ((arch_mask) & arch_type) \
846 fputs(opt_help, stdout);
847
848 #define ARCHHEADING(text, arch_mask) \
849 if ((arch_mask) & arch_type) \
850 puts(stringify(text));
851
852 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
853
854 #include "qemu-options.def"
855
856 printf("\nDuring emulation, the following keys are useful:\n"
857 "ctrl-alt-f toggle full screen\n"
858 "ctrl-alt-n switch to virtual console 'n'\n"
859 "ctrl-alt toggle mouse and keyboard grab\n"
860 "\n"
861 "When using -nographic, press 'ctrl-a h' to get some help.\n"
862 "\n"
863 QEMU_HELP_BOTTOM "\n");
864
865 exit(exitcode);
866 }
867
868 #define HAS_ARG 0x0001
869
870 typedef struct QEMUOption {
871 const char *name;
872 int flags;
873 int index;
874 uint32_t arch_mask;
875 } QEMUOption;
876
877 static const QEMUOption qemu_options[] = {
878 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
879
880 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
881 { option, opt_arg, opt_enum, arch_mask },
882 #define DEFHEADING(text)
883 #define ARCHHEADING(text, arch_mask)
884
885 #include "qemu-options.def"
886 { NULL },
887 };
888
889 typedef struct VGAInterfaceInfo {
890 const char *opt_name; /* option name */
891 const char *name; /* human-readable name */
892 /* Class names indicating that support is available.
893 * If no class is specified, the interface is always available */
894 const char *class_names[2];
895 } VGAInterfaceInfo;
896
897 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
898 [VGA_NONE] = {
899 .opt_name = "none",
900 .name = "no graphic card",
901 },
902 [VGA_STD] = {
903 .opt_name = "std",
904 .name = "standard VGA",
905 .class_names = { "VGA", "isa-vga" },
906 },
907 [VGA_CIRRUS] = {
908 .opt_name = "cirrus",
909 .name = "Cirrus VGA",
910 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
911 },
912 [VGA_VMWARE] = {
913 .opt_name = "vmware",
914 .name = "VMWare SVGA",
915 .class_names = { "vmware-svga" },
916 },
917 [VGA_VIRTIO] = {
918 .opt_name = "virtio",
919 .name = "Virtio VGA",
920 .class_names = { "virtio-vga" },
921 },
922 [VGA_QXL] = {
923 .opt_name = "qxl",
924 .name = "QXL VGA",
925 .class_names = { "qxl-vga" },
926 },
927 [VGA_TCX] = {
928 .opt_name = "tcx",
929 .name = "TCX framebuffer",
930 .class_names = { "sun-tcx" },
931 },
932 [VGA_CG3] = {
933 .opt_name = "cg3",
934 .name = "CG3 framebuffer",
935 .class_names = { "cgthree" },
936 },
937 [VGA_XENFB] = {
938 .opt_name = "xenfb",
939 .name = "Xen paravirtualized framebuffer",
940 },
941 };
942
943 static bool vga_interface_available(VGAInterfaceType t)
944 {
945 const VGAInterfaceInfo *ti = &vga_interfaces[t];
946
947 assert(t < VGA_TYPE_MAX);
948 return !ti->class_names[0] ||
949 module_object_class_by_name(ti->class_names[0]) ||
950 module_object_class_by_name(ti->class_names[1]);
951 }
952
953 static const char *
954 get_default_vga_model(const MachineClass *machine_class)
955 {
956 if (machine_class->default_display) {
957 return machine_class->default_display;
958 } else if (vga_interface_available(VGA_CIRRUS)) {
959 return "cirrus";
960 } else if (vga_interface_available(VGA_STD)) {
961 return "std";
962 }
963
964 return NULL;
965 }
966
967 static void select_vgahw(const MachineClass *machine_class, const char *p)
968 {
969 const char *opts;
970 int t;
971
972 if (g_str_equal(p, "help")) {
973 const char *def = get_default_vga_model(machine_class);
974
975 for (t = 0; t < VGA_TYPE_MAX; t++) {
976 const VGAInterfaceInfo *ti = &vga_interfaces[t];
977
978 if (vga_interface_available(t) && ti->opt_name) {
979 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
980 g_str_equal(ti->opt_name, def) ? " (default)" : "");
981 }
982 }
983 exit(0);
984 }
985
986 assert(vga_interface_type == VGA_NONE);
987 for (t = 0; t < VGA_TYPE_MAX; t++) {
988 const VGAInterfaceInfo *ti = &vga_interfaces[t];
989 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
990 if (!vga_interface_available(t)) {
991 error_report("%s not available", ti->name);
992 exit(1);
993 }
994 vga_interface_type = t;
995 break;
996 }
997 }
998 if (t == VGA_TYPE_MAX) {
999 invalid_vga:
1000 error_report("unknown vga type: %s", p);
1001 exit(1);
1002 }
1003 while (*opts) {
1004 const char *nextopt;
1005
1006 if (strstart(opts, ",retrace=", &nextopt)) {
1007 opts = nextopt;
1008 if (strstart(opts, "dumb", &nextopt))
1009 vga_retrace_method = VGA_RETRACE_DUMB;
1010 else if (strstart(opts, "precise", &nextopt))
1011 vga_retrace_method = VGA_RETRACE_PRECISE;
1012 else goto invalid_vga;
1013 } else goto invalid_vga;
1014 opts = nextopt;
1015 }
1016 }
1017
1018 static void parse_display_qapi(const char *optarg)
1019 {
1020 DisplayOptions *opts;
1021 Visitor *v;
1022
1023 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1024
1025 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1026 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1027
1028 qapi_free_DisplayOptions(opts);
1029 visit_free(v);
1030 }
1031
1032 DisplayOptions *qmp_query_display_options(Error **errp)
1033 {
1034 return QAPI_CLONE(DisplayOptions, &dpy);
1035 }
1036
1037 static void parse_display(const char *p)
1038 {
1039 const char *opts;
1040
1041 if (is_help_option(p)) {
1042 qemu_display_help();
1043 exit(0);
1044 }
1045
1046 if (strstart(p, "sdl", &opts)) {
1047 /*
1048 * sdl DisplayType needs hand-crafted parser instead of
1049 * parse_display_qapi() due to some options not in
1050 * DisplayOptions, specifically:
1051 * - ctrl_grab + alt_grab
1052 * They can't be moved into the QAPI since they use underscores,
1053 * thus they will get replaced by "grab-mod" in the long term
1054 */
1055 #if defined(CONFIG_SDL)
1056 dpy.type = DISPLAY_TYPE_SDL;
1057 while (*opts) {
1058 const char *nextopt;
1059
1060 if (strstart(opts, ",grab-mod=", &nextopt)) {
1061 opts = nextopt;
1062 if (strstart(opts, "lshift-lctrl-lalt", &nextopt)) {
1063 alt_grab = 1;
1064 } else if (strstart(opts, "rctrl", &nextopt)) {
1065 ctrl_grab = 1;
1066 } else {
1067 goto invalid_sdl_args;
1068 }
1069 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1070 opts = nextopt;
1071 if (strstart(opts, "on", &nextopt)) {
1072 alt_grab = 1;
1073 } else if (strstart(opts, "off", &nextopt)) {
1074 alt_grab = 0;
1075 } else {
1076 goto invalid_sdl_args;
1077 }
1078 warn_report("alt_grab is deprecated, use grab-mod instead.");
1079 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1080 opts = nextopt;
1081 if (strstart(opts, "on", &nextopt)) {
1082 ctrl_grab = 1;
1083 } else if (strstart(opts, "off", &nextopt)) {
1084 ctrl_grab = 0;
1085 } else {
1086 goto invalid_sdl_args;
1087 }
1088 warn_report("ctrl_grab is deprecated, use grab-mod instead.");
1089 } else if (strstart(opts, ",window_close=", &nextopt) ||
1090 strstart(opts, ",window-close=", &nextopt)) {
1091 if (strstart(opts, ",window_close=", NULL)) {
1092 warn_report("window_close with an underscore is deprecated,"
1093 " please use window-close instead.");
1094 }
1095 opts = nextopt;
1096 dpy.has_window_close = true;
1097 if (strstart(opts, "on", &nextopt)) {
1098 dpy.window_close = true;
1099 } else if (strstart(opts, "off", &nextopt)) {
1100 dpy.window_close = false;
1101 } else {
1102 goto invalid_sdl_args;
1103 }
1104 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1105 opts = nextopt;
1106 dpy.has_show_cursor = true;
1107 if (strstart(opts, "on", &nextopt)) {
1108 dpy.show_cursor = true;
1109 } else if (strstart(opts, "off", &nextopt)) {
1110 dpy.show_cursor = false;
1111 } else {
1112 goto invalid_sdl_args;
1113 }
1114 } else if (strstart(opts, ",gl=", &nextopt)) {
1115 opts = nextopt;
1116 dpy.has_gl = true;
1117 if (strstart(opts, "on", &nextopt)) {
1118 dpy.gl = DISPLAYGL_MODE_ON;
1119 } else if (strstart(opts, "core", &nextopt)) {
1120 dpy.gl = DISPLAYGL_MODE_CORE;
1121 } else if (strstart(opts, "es", &nextopt)) {
1122 dpy.gl = DISPLAYGL_MODE_ES;
1123 } else if (strstart(opts, "off", &nextopt)) {
1124 dpy.gl = DISPLAYGL_MODE_OFF;
1125 } else {
1126 goto invalid_sdl_args;
1127 }
1128 } else {
1129 invalid_sdl_args:
1130 error_report("invalid SDL option string");
1131 exit(1);
1132 }
1133 opts = nextopt;
1134 }
1135 #else
1136 error_report("SDL display supported is not available in this binary");
1137 exit(1);
1138 #endif
1139 } else if (strstart(p, "vnc", &opts)) {
1140 /*
1141 * vnc isn't a (local) DisplayType but a protocol for remote
1142 * display access.
1143 */
1144 if (*opts == '=') {
1145 vnc_parse(opts + 1);
1146 } else {
1147 error_report("VNC requires a display argument vnc=<display>");
1148 exit(1);
1149 }
1150 } else {
1151 parse_display_qapi(p);
1152 }
1153 }
1154
1155 static inline bool nonempty_str(const char *str)
1156 {
1157 return str && *str;
1158 }
1159
1160 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1161 {
1162 gchar *buf;
1163 size_t size;
1164 const char *name, *file, *str, *gen_id;
1165 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1166
1167 if (fw_cfg == NULL) {
1168 error_setg(errp, "fw_cfg device not available");
1169 return -1;
1170 }
1171 name = qemu_opt_get(opts, "name");
1172 file = qemu_opt_get(opts, "file");
1173 str = qemu_opt_get(opts, "string");
1174 gen_id = qemu_opt_get(opts, "gen_id");
1175
1176 /* we need the name, and exactly one of: file, content string, gen_id */
1177 if (!nonempty_str(name) ||
1178 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1179 error_setg(errp, "name, plus exactly one of file,"
1180 " string and gen_id, are needed");
1181 return -1;
1182 }
1183 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1184 error_setg(errp, "name too long (max. %d char)",
1185 FW_CFG_MAX_FILE_PATH - 1);
1186 return -1;
1187 }
1188 if (nonempty_str(gen_id)) {
1189 /*
1190 * In this particular case where the content is populated
1191 * internally, the "etc/" namespace protection is relaxed,
1192 * so do not emit a warning.
1193 */
1194 } else if (strncmp(name, "opt/", 4) != 0) {
1195 warn_report("externally provided fw_cfg item names "
1196 "should be prefixed with \"opt/\"");
1197 }
1198 if (nonempty_str(str)) {
1199 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1200 buf = g_memdup(str, size);
1201 } else if (nonempty_str(gen_id)) {
1202 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1203 return -1;
1204 }
1205 return 0;
1206 } else {
1207 GError *err = NULL;
1208 if (!g_file_get_contents(file, &buf, &size, &err)) {
1209 error_setg(errp, "can't load %s: %s", file, err->message);
1210 g_error_free(err);
1211 return -1;
1212 }
1213 }
1214 /* For legacy, keep user files in a specific global order. */
1215 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1216 fw_cfg_add_file(fw_cfg, name, buf, size);
1217 fw_cfg_reset_order_override(fw_cfg);
1218 return 0;
1219 }
1220
1221 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1222 {
1223 return qdev_device_help(opts);
1224 }
1225
1226 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1227 {
1228 DeviceState *dev;
1229
1230 dev = qdev_device_add(opts, errp);
1231 if (!dev && *errp) {
1232 error_report_err(*errp);
1233 return -1;
1234 } else if (dev) {
1235 object_unref(OBJECT(dev));
1236 }
1237 return 0;
1238 }
1239
1240 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1241 {
1242 Error *local_err = NULL;
1243
1244 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1245 if (local_err) {
1246 error_propagate(errp, local_err);
1247 return -1;
1248 }
1249 exit(0);
1250 }
1251 return 0;
1252 }
1253
1254 #ifdef CONFIG_VIRTFS
1255 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1256 {
1257 return qemu_fsdev_add(opts, errp);
1258 }
1259 #endif
1260
1261 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1262 {
1263 return monitor_init_opts(opts, errp);
1264 }
1265
1266 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
1267 {
1268 static int monitor_device_index = 0;
1269 QemuOpts *opts;
1270 const char *p;
1271 char label[32];
1272
1273 if (strstart(optarg, "chardev:", &p)) {
1274 snprintf(label, sizeof(label), "%s", p);
1275 } else {
1276 snprintf(label, sizeof(label), "compat_monitor%d",
1277 monitor_device_index);
1278 opts = qemu_chr_parse_compat(label, optarg, true);
1279 if (!opts) {
1280 error_report("parse error: %s", optarg);
1281 exit(1);
1282 }
1283 }
1284
1285 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1286 qemu_opt_set(opts, "mode", mode, &error_abort);
1287 qemu_opt_set(opts, "chardev", label, &error_abort);
1288 if (!strcmp(mode, "control")) {
1289 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1290 } else {
1291 assert(pretty == false);
1292 }
1293 monitor_device_index++;
1294 }
1295
1296 struct device_config {
1297 enum {
1298 DEV_USB, /* -usbdevice */
1299 DEV_SERIAL, /* -serial */
1300 DEV_PARALLEL, /* -parallel */
1301 DEV_DEBUGCON, /* -debugcon */
1302 DEV_GDB, /* -gdb, -s */
1303 DEV_SCLP, /* s390 sclp */
1304 } type;
1305 const char *cmdline;
1306 Location loc;
1307 QTAILQ_ENTRY(device_config) next;
1308 };
1309
1310 static QTAILQ_HEAD(, device_config) device_configs =
1311 QTAILQ_HEAD_INITIALIZER(device_configs);
1312
1313 static void add_device_config(int type, const char *cmdline)
1314 {
1315 struct device_config *conf;
1316
1317 conf = g_malloc0(sizeof(*conf));
1318 conf->type = type;
1319 conf->cmdline = cmdline;
1320 loc_save(&conf->loc);
1321 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1322 }
1323
1324 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1325 {
1326 struct device_config *conf;
1327 int rc;
1328
1329 QTAILQ_FOREACH(conf, &device_configs, next) {
1330 if (conf->type != type)
1331 continue;
1332 loc_push_restore(&conf->loc);
1333 rc = func(conf->cmdline);
1334 loc_pop(&conf->loc);
1335 if (rc) {
1336 return rc;
1337 }
1338 }
1339 return 0;
1340 }
1341
1342 static void qemu_disable_default_devices(void)
1343 {
1344 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1345
1346 default_driver_check_json();
1347 qemu_opts_foreach(qemu_find_opts("device"),
1348 default_driver_check, NULL, NULL);
1349 qemu_opts_foreach(qemu_find_opts("global"),
1350 default_driver_check, NULL, NULL);
1351
1352 if (!vga_model && !default_vga) {
1353 vga_interface_type = VGA_DEVICE;
1354 }
1355 if (!has_defaults || machine_class->no_serial) {
1356 default_serial = 0;
1357 }
1358 if (!has_defaults || machine_class->no_parallel) {
1359 default_parallel = 0;
1360 }
1361 if (!has_defaults || machine_class->no_floppy) {
1362 default_floppy = 0;
1363 }
1364 if (!has_defaults || machine_class->no_cdrom) {
1365 default_cdrom = 0;
1366 }
1367 if (!has_defaults || machine_class->no_sdcard) {
1368 default_sdcard = 0;
1369 }
1370 if (!has_defaults) {
1371 default_monitor = 0;
1372 default_net = 0;
1373 default_vga = 0;
1374 }
1375 }
1376
1377 static void qemu_create_default_devices(void)
1378 {
1379 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1380
1381 if (is_daemonized()) {
1382 /* According to documentation and historically, -nographic redirects
1383 * serial port, parallel port and monitor to stdio, which does not work
1384 * with -daemonize. We can redirect these to null instead, but since
1385 * -nographic is legacy, let's just error out.
1386 * We disallow -nographic only if all other ports are not redirected
1387 * explicitly, to not break existing legacy setups which uses
1388 * -nographic _and_ redirects all ports explicitly - this is valid
1389 * usage, -nographic is just a no-op in this case.
1390 */
1391 if (nographic
1392 && (default_parallel || default_serial || default_monitor)) {
1393 error_report("-nographic cannot be used with -daemonize");
1394 exit(1);
1395 }
1396 }
1397
1398 if (nographic) {
1399 if (default_parallel)
1400 add_device_config(DEV_PARALLEL, "null");
1401 if (default_serial && default_monitor) {
1402 add_device_config(DEV_SERIAL, "mon:stdio");
1403 } else {
1404 if (default_serial)
1405 add_device_config(DEV_SERIAL, "stdio");
1406 if (default_monitor)
1407 monitor_parse("stdio", "readline", false);
1408 }
1409 } else {
1410 if (default_serial)
1411 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1412 if (default_parallel)
1413 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1414 if (default_monitor)
1415 monitor_parse("vc:80Cx24C", "readline", false);
1416 }
1417
1418 if (default_net) {
1419 QemuOptsList *net = qemu_find_opts("net");
1420 qemu_opts_parse(net, "nic", true, &error_abort);
1421 #ifdef CONFIG_SLIRP
1422 qemu_opts_parse(net, "user", true, &error_abort);
1423 #endif
1424 }
1425
1426 #if defined(CONFIG_VNC)
1427 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
1428 display_remote++;
1429 }
1430 #endif
1431 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1432 if (!qemu_display_find_default(&dpy)) {
1433 dpy.type = DISPLAY_TYPE_NONE;
1434 #if defined(CONFIG_VNC)
1435 vnc_parse("localhost:0,to=99,id=default");
1436 #endif
1437 }
1438 }
1439 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1440 dpy.type = DISPLAY_TYPE_NONE;
1441 }
1442
1443 /* If no default VGA is requested, the default is "none". */
1444 if (default_vga) {
1445 vga_model = get_default_vga_model(machine_class);
1446 }
1447 if (vga_model) {
1448 select_vgahw(machine_class, vga_model);
1449 }
1450 }
1451
1452 static int serial_parse(const char *devname)
1453 {
1454 int index = num_serial_hds;
1455 char label[32];
1456
1457 if (strcmp(devname, "none") == 0)
1458 return 0;
1459 snprintf(label, sizeof(label), "serial%d", index);
1460 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1461
1462 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1463 if (!serial_hds[index]) {
1464 error_report("could not connect serial device"
1465 " to character backend '%s'", devname);
1466 return -1;
1467 }
1468 num_serial_hds++;
1469 return 0;
1470 }
1471
1472 Chardev *serial_hd(int i)
1473 {
1474 assert(i >= 0);
1475 if (i < num_serial_hds) {
1476 return serial_hds[i];
1477 }
1478 return NULL;
1479 }
1480
1481 static int parallel_parse(const char *devname)
1482 {
1483 static int index = 0;
1484 char label[32];
1485
1486 if (strcmp(devname, "none") == 0)
1487 return 0;
1488 if (index == MAX_PARALLEL_PORTS) {
1489 error_report("too many parallel ports");
1490 exit(1);
1491 }
1492 snprintf(label, sizeof(label), "parallel%d", index);
1493 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1494 if (!parallel_hds[index]) {
1495 error_report("could not connect parallel device"
1496 " to character backend '%s'", devname);
1497 return -1;
1498 }
1499 index++;
1500 return 0;
1501 }
1502
1503 static int debugcon_parse(const char *devname)
1504 {
1505 QemuOpts *opts;
1506
1507 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1508 error_report("invalid character backend '%s'", devname);
1509 exit(1);
1510 }
1511 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1512 if (!opts) {
1513 error_report("already have a debugcon device");
1514 exit(1);
1515 }
1516 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1517 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1518 return 0;
1519 }
1520
1521 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1522 {
1523 const MachineClass *mc1 = a, *mc2 = b;
1524 int res;
1525
1526 if (mc1->family == NULL) {
1527 if (mc2->family == NULL) {
1528 /* Compare standalone machine types against each other; they sort
1529 * in increasing order.
1530 */
1531 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1532 object_class_get_name(OBJECT_CLASS(mc2)));
1533 }
1534
1535 /* Standalone machine types sort after families. */
1536 return 1;
1537 }
1538
1539 if (mc2->family == NULL) {
1540 /* Families sort before standalone machine types. */
1541 return -1;
1542 }
1543
1544 /* Families sort between each other alphabetically increasingly. */
1545 res = strcmp(mc1->family, mc2->family);
1546 if (res != 0) {
1547 return res;
1548 }
1549
1550 /* Within the same family, machine types sort in decreasing order. */
1551 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1552 object_class_get_name(OBJECT_CLASS(mc1)));
1553 }
1554
1555 static void machine_help_func(const QDict *qdict)
1556 {
1557 GSList *machines, *el;
1558 const char *type = qdict_get_try_str(qdict, "type");
1559
1560 machines = object_class_get_list(TYPE_MACHINE, false);
1561 if (type) {
1562 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1563 if (machine_class) {
1564 type_print_class_properties(object_class_get_name(machine_class));
1565 return;
1566 }
1567 }
1568
1569 printf("Supported machines are:\n");
1570 machines = g_slist_sort(machines, machine_class_cmp);
1571 for (el = machines; el; el = el->next) {
1572 MachineClass *mc = el->data;
1573 if (mc->alias) {
1574 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1575 }
1576 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1577 mc->is_default ? " (default)" : "",
1578 mc->deprecation_reason ? " (deprecated)" : "");
1579 }
1580 }
1581
1582 static void
1583 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1584 {
1585 QDict *opts;
1586
1587 opts = qdict_new();
1588 /* Preserve the caller's reference to prop. */
1589 qobject_ref(prop);
1590 qdict_put(opts, propname, prop);
1591 keyval_merge(machine_opts_dict, opts, errp);
1592 qobject_unref(opts);
1593 }
1594
1595 static void
1596 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1597 const char *arg)
1598 {
1599 QDict *prop = NULL;
1600 bool help = false;
1601
1602 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1603 if (help) {
1604 qemu_opts_print_help(opts_list, true);
1605 exit(0);
1606 }
1607 machine_merge_property(propname, prop, &error_fatal);
1608 qobject_unref(prop);
1609 }
1610
1611 static const char *pid_file;
1612 static Notifier qemu_unlink_pidfile_notifier;
1613
1614 static void qemu_unlink_pidfile(Notifier *n, void *data)
1615 {
1616 if (pid_file) {
1617 unlink(pid_file);
1618 }
1619 }
1620
1621 static const QEMUOption *lookup_opt(int argc, char **argv,
1622 const char **poptarg, int *poptind)
1623 {
1624 const QEMUOption *popt;
1625 int optind = *poptind;
1626 char *r = argv[optind];
1627 const char *optarg;
1628
1629 loc_set_cmdline(argv, optind, 1);
1630 optind++;
1631 /* Treat --foo the same as -foo. */
1632 if (r[1] == '-')
1633 r++;
1634 popt = qemu_options;
1635 for(;;) {
1636 if (!popt->name) {
1637 error_report("invalid option");
1638 exit(1);
1639 }
1640 if (!strcmp(popt->name, r + 1))
1641 break;
1642 popt++;
1643 }
1644 if (popt->flags & HAS_ARG) {
1645 if (optind >= argc) {
1646 error_report("requires an argument");
1647 exit(1);
1648 }
1649 optarg = argv[optind++];
1650 loc_set_cmdline(argv, optind - 2, 2);
1651 } else {
1652 optarg = NULL;
1653 }
1654
1655 *poptarg = optarg;
1656 *poptind = optind;
1657
1658 return popt;
1659 }
1660
1661 static MachineClass *select_machine(QDict *qdict, Error **errp)
1662 {
1663 const char *optarg = qdict_get_try_str(qdict, "type");
1664 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1665 MachineClass *machine_class;
1666 Error *local_err = NULL;
1667
1668 if (optarg) {
1669 machine_class = find_machine(optarg, machines);
1670 qdict_del(qdict, "type");
1671 if (!machine_class) {
1672 error_setg(&local_err, "unsupported machine type");
1673 }
1674 } else {
1675 machine_class = find_default_machine(machines);
1676 if (!machine_class) {
1677 error_setg(&local_err, "No machine specified, and there is no default");
1678 }
1679 }
1680
1681 g_slist_free(machines);
1682 if (local_err) {
1683 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1684 error_propagate(errp, local_err);
1685 }
1686 return machine_class;
1687 }
1688
1689 static int object_parse_property_opt(Object *obj,
1690 const char *name, const char *value,
1691 const char *skip, Error **errp)
1692 {
1693 if (g_str_equal(name, skip)) {
1694 return 0;
1695 }
1696
1697 if (!object_property_parse(obj, name, value, errp)) {
1698 return -1;
1699 }
1700
1701 return 0;
1702 }
1703
1704 /* *Non*recursively replace underscores with dashes in QDict keys. */
1705 static void keyval_dashify(QDict *qdict, Error **errp)
1706 {
1707 const QDictEntry *ent, *next;
1708 char *p;
1709
1710 for (ent = qdict_first(qdict); ent; ent = next) {
1711 g_autofree char *new_key = NULL;
1712
1713 next = qdict_next(qdict, ent);
1714 if (!strchr(ent->key, '_')) {
1715 continue;
1716 }
1717 new_key = g_strdup(ent->key);
1718 for (p = new_key; *p; p++) {
1719 if (*p == '_') {
1720 *p = '-';
1721 }
1722 }
1723 if (qdict_haskey(qdict, new_key)) {
1724 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1725 return;
1726 }
1727 qobject_ref(ent->value);
1728 qdict_put_obj(qdict, new_key, ent->value);
1729 qdict_del(qdict, ent->key);
1730 }
1731 }
1732
1733 static void qemu_apply_legacy_machine_options(QDict *qdict)
1734 {
1735 const char *value;
1736
1737 keyval_dashify(qdict, &error_fatal);
1738
1739 /* Legacy options do not correspond to MachineState properties. */
1740 value = qdict_get_try_str(qdict, "accel");
1741 if (value) {
1742 accelerators = g_strdup(value);
1743 qdict_del(qdict, "accel");
1744 }
1745
1746 value = qdict_get_try_str(qdict, "igd-passthru");
1747 if (value) {
1748 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1749 false);
1750 qdict_del(qdict, "igd-passthru");
1751 }
1752
1753 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1754 if (value) {
1755 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1756 false);
1757 qdict_del(qdict, "kvm-shadow-mem");
1758 }
1759
1760 value = qdict_get_try_str(qdict, "kernel-irqchip");
1761 if (value) {
1762 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1763 false);
1764 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1765 false);
1766 qdict_del(qdict, "kernel-irqchip");
1767 }
1768 }
1769
1770 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1771 {
1772 ObjectOption *opt, *next;
1773
1774 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1775 const char *type = ObjectType_str(opt->opts->qom_type);
1776 if (type_opt_predicate(type)) {
1777 user_creatable_add_qapi(opt->opts, &error_fatal);
1778 qapi_free_ObjectOptions(opt->opts);
1779 QTAILQ_REMOVE(&object_opts, opt, next);
1780 g_free(opt);
1781 }
1782 }
1783 }
1784
1785 static void object_option_add_visitor(Visitor *v)
1786 {
1787 ObjectOption *opt = g_new0(ObjectOption, 1);
1788 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1789 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1790 }
1791
1792 static void object_option_parse(const char *optarg)
1793 {
1794 QemuOpts *opts;
1795 const char *type;
1796 Visitor *v;
1797
1798 if (optarg[0] == '{') {
1799 QObject *obj = qobject_from_json(optarg, &error_fatal);
1800
1801 v = qobject_input_visitor_new(obj);
1802 qobject_unref(obj);
1803 } else {
1804 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1805 optarg, true);
1806 if (!opts) {
1807 exit(1);
1808 }
1809
1810 type = qemu_opt_get(opts, "qom-type");
1811 if (!type) {
1812 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1813 }
1814 if (user_creatable_print_help(type, opts)) {
1815 exit(0);
1816 }
1817
1818 v = opts_visitor_new(opts);
1819 }
1820
1821 object_option_add_visitor(v);
1822 visit_free(v);
1823 }
1824
1825 /*
1826 * Initial object creation happens before all other
1827 * QEMU data types are created. The majority of objects
1828 * can be created at this point. The rng-egd object
1829 * cannot be created here, as it depends on the chardev
1830 * already existing.
1831 */
1832 static bool object_create_early(const char *type)
1833 {
1834 /*
1835 * Objects should not be made "delayed" without a reason. If you
1836 * add one, state the reason in a comment!
1837 */
1838
1839 /* Reason: property "chardev" */
1840 if (g_str_equal(type, "rng-egd") ||
1841 g_str_equal(type, "qtest")) {
1842 return false;
1843 }
1844
1845 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1846 /* Reason: cryptodev-vhost-user property "chardev" */
1847 if (g_str_equal(type, "cryptodev-vhost-user")) {
1848 return false;
1849 }
1850 #endif
1851
1852 /* Reason: vhost-user-blk-server property "node-name" */
1853 if (g_str_equal(type, "vhost-user-blk-server")) {
1854 return false;
1855 }
1856 /*
1857 * Reason: filter-* property "netdev" etc.
1858 */
1859 if (g_str_equal(type, "filter-buffer") ||
1860 g_str_equal(type, "filter-dump") ||
1861 g_str_equal(type, "filter-mirror") ||
1862 g_str_equal(type, "filter-redirector") ||
1863 g_str_equal(type, "colo-compare") ||
1864 g_str_equal(type, "filter-rewriter") ||
1865 g_str_equal(type, "filter-replay")) {
1866 return false;
1867 }
1868
1869 /*
1870 * Allocation of large amounts of memory may delay
1871 * chardev initialization for too long, and trigger timeouts
1872 * on software that waits for a monitor socket to be created
1873 * (e.g. libvirt).
1874 */
1875 if (g_str_has_prefix(type, "memory-backend-")) {
1876 return false;
1877 }
1878
1879 return true;
1880 }
1881
1882 static void qemu_apply_machine_options(QDict *qdict)
1883 {
1884 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1885 const char *boot_order = NULL;
1886 const char *boot_once = NULL;
1887 QemuOpts *opts;
1888
1889 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1890 current_machine->ram_size = ram_size;
1891 current_machine->maxram_size = maxram_size;
1892 current_machine->ram_slots = ram_slots;
1893
1894 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
1895 if (opts) {
1896 boot_order = qemu_opt_get(opts, "order");
1897 if (boot_order) {
1898 validate_bootdevices(boot_order, &error_fatal);
1899 }
1900
1901 boot_once = qemu_opt_get(opts, "once");
1902 if (boot_once) {
1903 validate_bootdevices(boot_once, &error_fatal);
1904 }
1905
1906 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
1907 boot_strict = qemu_opt_get_bool(opts, "strict", false);
1908 }
1909
1910 if (!boot_order) {
1911 boot_order = machine_class->default_boot_order;
1912 }
1913
1914 current_machine->boot_order = boot_order;
1915 current_machine->boot_once = boot_once;
1916
1917 if (semihosting_enabled() && !semihosting_get_argc()) {
1918 /* fall back to the -kernel/-append */
1919 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1920 }
1921
1922 if (current_machine->smp.cpus > 1) {
1923 Error *blocker = NULL;
1924 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1925 replay_add_blocker(blocker);
1926 }
1927 }
1928
1929 static void qemu_create_early_backends(void)
1930 {
1931 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1932 #if defined(CONFIG_SDL)
1933 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1934 #else
1935 const bool use_sdl = false;
1936 #endif
1937 #if defined(CONFIG_GTK)
1938 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1939 #else
1940 const bool use_gtk = false;
1941 #endif
1942
1943 if ((alt_grab || ctrl_grab) && !use_sdl) {
1944 error_report("-alt-grab and -ctrl-grab are only valid "
1945 "for SDL, ignoring option");
1946 }
1947 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1948 error_report("window-close is only valid for GTK and SDL, "
1949 "ignoring option");
1950 }
1951
1952 qemu_display_early_init(&dpy);
1953 qemu_console_early_init();
1954
1955 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1956 #if defined(CONFIG_OPENGL)
1957 error_report("OpenGL is not supported by the display");
1958 #else
1959 error_report("OpenGL support is disabled");
1960 #endif
1961 exit(1);
1962 }
1963
1964 object_option_foreach_add(object_create_early);
1965
1966 /* spice needs the timers to be initialized by this point */
1967 /* spice must initialize before audio as it changes the default audiodev */
1968 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1969 qemu_spice.init();
1970
1971 qemu_opts_foreach(qemu_find_opts("chardev"),
1972 chardev_init_func, NULL, &error_fatal);
1973
1974 #ifdef CONFIG_VIRTFS
1975 qemu_opts_foreach(qemu_find_opts("fsdev"),
1976 fsdev_init_func, NULL, &error_fatal);
1977 #endif
1978
1979 /*
1980 * Note: we need to create audio and block backends before
1981 * setting machine properties, so they can be referred to.
1982 */
1983 configure_blockdev(&bdo_queue, machine_class, snapshot);
1984 audio_init_audiodevs();
1985 }
1986
1987
1988 /*
1989 * The remainder of object creation happens after the
1990 * creation of chardev, fsdev, net clients and device data types.
1991 */
1992 static bool object_create_late(const char *type)
1993 {
1994 return !object_create_early(type);
1995 }
1996
1997 static void qemu_create_late_backends(void)
1998 {
1999 if (qtest_chrdev) {
2000 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
2001 }
2002
2003 net_init_clients(&error_fatal);
2004
2005 object_option_foreach_add(object_create_late);
2006
2007 if (tpm_init() < 0) {
2008 exit(1);
2009 }
2010
2011 qemu_opts_foreach(qemu_find_opts("mon"),
2012 mon_init_func, NULL, &error_fatal);
2013
2014 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2015 exit(1);
2016 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2017 exit(1);
2018 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2019 exit(1);
2020
2021 /* now chardevs have been created we may have semihosting to connect */
2022 qemu_semihosting_connect_chardevs();
2023 qemu_semihosting_console_init();
2024 }
2025
2026 static bool have_custom_ram_size(void)
2027 {
2028 QemuOpts *opts = qemu_find_opts_singleton("memory");
2029 return !!qemu_opt_get_size(opts, "size", 0);
2030 }
2031
2032 static void qemu_resolve_machine_memdev(void)
2033 {
2034 if (current_machine->ram_memdev_id) {
2035 Object *backend;
2036 ram_addr_t backend_size;
2037
2038 backend = object_resolve_path_type(current_machine->ram_memdev_id,
2039 TYPE_MEMORY_BACKEND, NULL);
2040 if (!backend) {
2041 error_report("Memory backend '%s' not found",
2042 current_machine->ram_memdev_id);
2043 exit(EXIT_FAILURE);
2044 }
2045 backend_size = object_property_get_uint(backend, "size", &error_abort);
2046 if (have_custom_ram_size() && backend_size != ram_size) {
2047 error_report("Size specified by -m option must match size of "
2048 "explicitly specified 'memory-backend' property");
2049 exit(EXIT_FAILURE);
2050 }
2051 if (mem_path) {
2052 error_report("'-mem-path' can't be used together with"
2053 "'-machine memory-backend'");
2054 exit(EXIT_FAILURE);
2055 }
2056 ram_size = backend_size;
2057 }
2058
2059 if (!xen_enabled()) {
2060 /* On 32-bit hosts, QEMU is limited by virtual address space */
2061 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
2062 error_report("at most 2047 MB RAM can be simulated");
2063 exit(1);
2064 }
2065 }
2066 }
2067
2068 static void set_memory_options(MachineClass *mc)
2069 {
2070 uint64_t sz;
2071 const char *mem_str;
2072 const ram_addr_t default_ram_size = mc->default_ram_size;
2073 QemuOpts *opts = qemu_find_opts_singleton("memory");
2074 Location loc;
2075
2076 loc_push_none(&loc);
2077 qemu_opts_loc_restore(opts);
2078
2079 sz = 0;
2080 mem_str = qemu_opt_get(opts, "size");
2081 if (mem_str) {
2082 if (!*mem_str) {
2083 error_report("missing 'size' option value");
2084 exit(EXIT_FAILURE);
2085 }
2086
2087 sz = qemu_opt_get_size(opts, "size", ram_size);
2088
2089 /* Fix up legacy suffix-less format */
2090 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2091 uint64_t overflow_check = sz;
2092
2093 sz *= MiB;
2094 if (sz / MiB != overflow_check) {
2095 error_report("too large 'size' option value");
2096 exit(EXIT_FAILURE);
2097 }
2098 }
2099 }
2100
2101 /* backward compatibility behaviour for case "-m 0" */
2102 if (sz == 0) {
2103 sz = default_ram_size;
2104 }
2105
2106 sz = QEMU_ALIGN_UP(sz, 8192);
2107 if (mc->fixup_ram_size) {
2108 sz = mc->fixup_ram_size(sz);
2109 }
2110 ram_size = sz;
2111 if (ram_size != sz) {
2112 error_report("ram size too large");
2113 exit(EXIT_FAILURE);
2114 }
2115
2116 maxram_size = ram_size;
2117
2118 if (qemu_opt_get(opts, "maxmem")) {
2119 uint64_t slots;
2120
2121 sz = qemu_opt_get_size(opts, "maxmem", 0);
2122 slots = qemu_opt_get_number(opts, "slots", 0);
2123 if (sz < ram_size) {
2124 error_report("invalid value of -m option maxmem: "
2125 "maximum memory size (0x%" PRIx64 ") must be at least "
2126 "the initial memory size (0x" RAM_ADDR_FMT ")",
2127 sz, ram_size);
2128 exit(EXIT_FAILURE);
2129 } else if (slots && sz == ram_size) {
2130 error_report("invalid value of -m option maxmem: "
2131 "memory slots were specified but maximum memory size "
2132 "(0x%" PRIx64 ") is equal to the initial memory size "
2133 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2134 exit(EXIT_FAILURE);
2135 }
2136
2137 maxram_size = sz;
2138 ram_slots = slots;
2139 } else if (qemu_opt_get(opts, "slots")) {
2140 error_report("invalid -m option value: missing 'maxmem' option");
2141 exit(EXIT_FAILURE);
2142 }
2143
2144 loc_pop(&loc);
2145 }
2146
2147 static void qemu_create_machine(QDict *qdict)
2148 {
2149 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2150 object_set_machine_compat_props(machine_class->compat_props);
2151
2152 set_memory_options(machine_class);
2153
2154 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2155 object_property_add_child(object_get_root(), "machine",
2156 OBJECT(current_machine));
2157 object_property_add_child(container_get(OBJECT(current_machine),
2158 "/unattached"),
2159 "sysbus", OBJECT(sysbus_get_default()));
2160
2161 if (machine_class->minimum_page_bits) {
2162 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2163 /* This would be a board error: specifying a minimum smaller than
2164 * a target's compile-time fixed setting.
2165 */
2166 g_assert_not_reached();
2167 }
2168 }
2169
2170 cpu_exec_init_all();
2171 page_size_init();
2172
2173 if (machine_class->hw_version) {
2174 qemu_set_hw_version(machine_class->hw_version);
2175 }
2176
2177 /*
2178 * Get the default machine options from the machine if it is not already
2179 * specified either by the configuration file or by the command line.
2180 */
2181 if (machine_class->default_machine_opts) {
2182 QDict *default_opts =
2183 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2184 &error_abort);
2185 qemu_apply_legacy_machine_options(default_opts);
2186 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2187 false, &error_abort);
2188 qobject_unref(default_opts);
2189 }
2190 }
2191
2192 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2193 {
2194 GlobalProperty *g;
2195
2196 g = g_malloc0(sizeof(*g));
2197 g->driver = qemu_opt_get(opts, "driver");
2198 g->property = qemu_opt_get(opts, "property");
2199 g->value = qemu_opt_get(opts, "value");
2200 qdev_prop_register_global(g);
2201 return 0;
2202 }
2203
2204 /*
2205 * Return whether configuration group @group is stored in QemuOpts, or
2206 * recorded as one or more QDicts by qemu_record_config_group.
2207 */
2208 static bool is_qemuopts_group(const char *group)
2209 {
2210 if (g_str_equal(group, "object") ||
2211 g_str_equal(group, "machine") ||
2212 g_str_equal(group, "smp-opts")) {
2213 return false;
2214 }
2215 return true;
2216 }
2217
2218 static void qemu_record_config_group(const char *group, QDict *dict,
2219 bool from_json, Error **errp)
2220 {
2221 if (g_str_equal(group, "object")) {
2222 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2223 object_option_add_visitor(v);
2224 visit_free(v);
2225 } else if (g_str_equal(group, "machine")) {
2226 /*
2227 * Cannot merge string-valued and type-safe dictionaries, so JSON
2228 * is not accepted yet for -M.
2229 */
2230 assert(!from_json);
2231 keyval_merge(machine_opts_dict, dict, errp);
2232 } else if (g_str_equal(group, "smp-opts")) {
2233 machine_merge_property("smp", dict, &error_fatal);
2234 } else {
2235 abort();
2236 }
2237 }
2238
2239 /*
2240 * Parse non-QemuOpts config file groups, pass the rest to
2241 * qemu_config_do_parse.
2242 */
2243 static void qemu_parse_config_group(const char *group, QDict *qdict,
2244 void *opaque, Error **errp)
2245 {
2246 QObject *crumpled;
2247 if (is_qemuopts_group(group)) {
2248 qemu_config_do_parse(group, qdict, opaque, errp);
2249 return;
2250 }
2251
2252 crumpled = qdict_crumple(qdict, errp);
2253 if (!crumpled) {
2254 return;
2255 }
2256 switch (qobject_type(crumpled)) {
2257 case QTYPE_QDICT:
2258 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2259 break;
2260 case QTYPE_QLIST:
2261 error_setg(errp, "Lists cannot be at top level of a configuration section");
2262 break;
2263 default:
2264 g_assert_not_reached();
2265 }
2266 qobject_unref(crumpled);
2267 }
2268
2269 static void qemu_read_default_config_file(Error **errp)
2270 {
2271 ERRP_GUARD();
2272 int ret;
2273 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2274
2275 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2276 if (ret < 0) {
2277 if (ret == -ENOENT) {
2278 error_free(*errp);
2279 *errp = NULL;
2280 }
2281 }
2282 }
2283
2284 static void qemu_set_option(const char *str, Error **errp)
2285 {
2286 char group[64], id[64], arg[64];
2287 QemuOptsList *list;
2288 QemuOpts *opts;
2289 int rc, offset;
2290
2291 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2292 if (rc < 3 || str[offset] != '=') {
2293 error_setg(errp, "can't parse: \"%s\"", str);
2294 return;
2295 }
2296
2297 if (!is_qemuopts_group(group)) {
2298 error_setg(errp, "-set is not supported with %s", group);
2299 } else {
2300 list = qemu_find_opts_err(group, errp);
2301 if (list) {
2302 opts = qemu_opts_find(list, id);
2303 if (!opts) {
2304 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2305 return;
2306 }
2307 qemu_opt_set(opts, arg, str + offset + 1, errp);
2308 }
2309 }
2310 }
2311
2312 static void user_register_global_props(void)
2313 {
2314 qemu_opts_foreach(qemu_find_opts("global"),
2315 global_init_func, NULL, NULL);
2316 }
2317
2318 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2319 {
2320 icount_configure(opts, errp);
2321 return 0;
2322 }
2323
2324 static int accelerator_set_property(void *opaque,
2325 const char *name, const char *value,
2326 Error **errp)
2327 {
2328 return object_parse_property_opt(opaque, name, value, "accel", errp);
2329 }
2330
2331 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2332 {
2333 bool *p_init_failed = opaque;
2334 const char *acc = qemu_opt_get(opts, "accel");
2335 AccelClass *ac = accel_find(acc);
2336 AccelState *accel;
2337 int ret;
2338 bool qtest_with_kvm;
2339
2340 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2341
2342 if (!ac) {
2343 *p_init_failed = true;
2344 if (!qtest_with_kvm) {
2345 error_report("invalid accelerator %s", acc);
2346 }
2347 return 0;
2348 }
2349 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2350 object_apply_compat_props(OBJECT(accel));
2351 qemu_opt_foreach(opts, accelerator_set_property,
2352 accel,
2353 &error_fatal);
2354
2355 ret = accel_init_machine(accel, current_machine);
2356 if (ret < 0) {
2357 *p_init_failed = true;
2358 if (!qtest_with_kvm || ret != -ENOENT) {
2359 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2360 }
2361 return 0;
2362 }
2363
2364 return 1;
2365 }
2366
2367 static void configure_accelerators(const char *progname)
2368 {
2369 bool init_failed = false;
2370
2371 qemu_opts_foreach(qemu_find_opts("icount"),
2372 do_configure_icount, NULL, &error_fatal);
2373
2374 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2375 char **accel_list, **tmp;
2376
2377 if (accelerators == NULL) {
2378 /* Select the default accelerator */
2379 bool have_tcg = accel_find("tcg");
2380 bool have_kvm = accel_find("kvm");
2381
2382 if (have_tcg && have_kvm) {
2383 if (g_str_has_suffix(progname, "kvm")) {
2384 /* If the program name ends with "kvm", we prefer KVM */
2385 accelerators = "kvm:tcg";
2386 } else {
2387 accelerators = "tcg:kvm";
2388 }
2389 } else if (have_kvm) {
2390 accelerators = "kvm";
2391 } else if (have_tcg) {
2392 accelerators = "tcg";
2393 } else {
2394 error_report("No accelerator selected and"
2395 " no default accelerator available");
2396 exit(1);
2397 }
2398 }
2399 accel_list = g_strsplit(accelerators, ":", 0);
2400
2401 for (tmp = accel_list; *tmp; tmp++) {
2402 /*
2403 * Filter invalid accelerators here, to prevent obscenities
2404 * such as "-machine accel=tcg,,thread=single".
2405 */
2406 if (accel_find(*tmp)) {
2407 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2408 } else {
2409 init_failed = true;
2410 error_report("invalid accelerator %s", *tmp);
2411 }
2412 }
2413 g_strfreev(accel_list);
2414 } else {
2415 if (accelerators != NULL) {
2416 error_report("The -accel and \"-machine accel=\" options are incompatible");
2417 exit(1);
2418 }
2419 }
2420
2421 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2422 do_configure_accelerator, &init_failed, &error_fatal)) {
2423 if (!init_failed) {
2424 error_report("no accelerator found");
2425 }
2426 exit(1);
2427 }
2428
2429 if (init_failed && !qtest_chrdev) {
2430 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2431 error_report("falling back to %s", ac->name);
2432 }
2433
2434 if (icount_enabled() && !tcg_enabled()) {
2435 error_report("-icount is not allowed with hardware virtualization");
2436 exit(1);
2437 }
2438 }
2439
2440 static void create_default_memdev(MachineState *ms, const char *path)
2441 {
2442 Object *obj;
2443 MachineClass *mc = MACHINE_GET_CLASS(ms);
2444
2445 obj = object_new(path ? TYPE_MEMORY_BACKEND_FILE : TYPE_MEMORY_BACKEND_RAM);
2446 if (path) {
2447 object_property_set_str(obj, "mem-path", path, &error_fatal);
2448 }
2449 object_property_set_int(obj, "size", ms->ram_size, &error_fatal);
2450 object_property_add_child(object_get_objects_root(), mc->default_ram_id,
2451 obj);
2452 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2453 object_property_set_bool(obj, "x-use-canonical-path-for-ramblock-id",
2454 false, &error_fatal);
2455 user_creatable_complete(USER_CREATABLE(obj), &error_fatal);
2456 object_unref(obj);
2457 object_property_set_str(OBJECT(ms), "memory-backend", mc->default_ram_id,
2458 &error_fatal);
2459 }
2460
2461 static void qemu_validate_options(const QDict *machine_opts)
2462 {
2463 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2464 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2465 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2466
2467 if (kernel_filename == NULL) {
2468 if (kernel_cmdline != NULL) {
2469 error_report("-append only allowed with -kernel option");
2470 exit(1);
2471 }
2472
2473 if (initrd_filename != NULL) {
2474 error_report("-initrd only allowed with -kernel option");
2475 exit(1);
2476 }
2477 }
2478
2479 if (loadvm && preconfig_requested) {
2480 error_report("'preconfig' and 'loadvm' options are "
2481 "mutually exclusive");
2482 exit(EXIT_FAILURE);
2483 }
2484 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2485 error_report("'preconfig' supports '-incoming defer' only");
2486 exit(EXIT_FAILURE);
2487 }
2488
2489 #ifdef CONFIG_CURSES
2490 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2491 error_report("curses display cannot be used with -daemonize");
2492 exit(1);
2493 }
2494 #endif
2495 }
2496
2497 static void qemu_process_sugar_options(void)
2498 {
2499 if (mem_prealloc) {
2500 QObject *smp = qdict_get(machine_opts_dict, "smp");
2501 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2502 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2503 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2504 const char *val = qstring_get_str(qobject_to(QString, cpus));
2505 object_register_sugar_prop("memory-backend", "prealloc-threads",
2506 val, false);
2507 }
2508 }
2509 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2510 }
2511
2512 if (watchdog) {
2513 int i = select_watchdog(watchdog);
2514 if (i > 0)
2515 exit (i == 1 ? 1 : 0);
2516 }
2517 }
2518
2519 /* -action processing */
2520
2521 /*
2522 * Process all the -action parameters parsed from cmdline.
2523 */
2524 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2525 {
2526 Error *local_err = NULL;
2527 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2528 QObject *ret = NULL;
2529 qmp_marshal_set_action(qdict, &ret, &local_err);
2530 qobject_unref(ret);
2531 qobject_unref(qdict);
2532 if (local_err) {
2533 error_propagate(errp, local_err);
2534 return 1;
2535 }
2536 return 0;
2537 }
2538
2539 static void qemu_process_early_options(void)
2540 {
2541 #ifdef CONFIG_SECCOMP
2542 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2543 if (olist) {
2544 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2545 }
2546 #endif
2547
2548 qemu_opts_foreach(qemu_find_opts("name"),
2549 parse_name, NULL, &error_fatal);
2550
2551 if (qemu_opts_foreach(qemu_find_opts("action"),
2552 process_runstate_actions, NULL, &error_fatal)) {
2553 exit(1);
2554 }
2555
2556 #ifndef _WIN32
2557 qemu_opts_foreach(qemu_find_opts("add-fd"),
2558 parse_add_fd, NULL, &error_fatal);
2559
2560 qemu_opts_foreach(qemu_find_opts("add-fd"),
2561 cleanup_add_fd, NULL, &error_fatal);
2562 #endif
2563
2564 /* Open the logfile at this point and set the log mask if necessary. */
2565 {
2566 int mask = 0;
2567 if (log_mask) {
2568 mask = qemu_str_to_log_mask(log_mask);
2569 if (!mask) {
2570 qemu_print_log_usage(stdout);
2571 exit(1);
2572 }
2573 }
2574 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2575 }
2576
2577 qemu_add_default_firmwarepath();
2578 }
2579
2580 static void qemu_process_help_options(void)
2581 {
2582 /*
2583 * Check for -cpu help and -device help before we call select_machine(),
2584 * which will return an error if the architecture has no default machine
2585 * type and the user did not specify one, so that the user doesn't need
2586 * to say '-cpu help -machine something'.
2587 */
2588 if (cpu_option && is_help_option(cpu_option)) {
2589 list_cpus(cpu_option);
2590 exit(0);
2591 }
2592
2593 if (qemu_opts_foreach(qemu_find_opts("device"),
2594 device_help_func, NULL, NULL)) {
2595 exit(0);
2596 }
2597
2598 /* -L help lists the data directories and exits. */
2599 if (list_data_dirs) {
2600 qemu_list_data_dirs();
2601 exit(0);
2602 }
2603 }
2604
2605 static void qemu_maybe_daemonize(const char *pid_file)
2606 {
2607 Error *err = NULL;
2608
2609 os_daemonize();
2610 rcu_disable_atfork();
2611
2612 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
2613 error_reportf_err(err, "cannot create PID file: ");
2614 exit(1);
2615 }
2616
2617 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
2618 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
2619 }
2620
2621 static void qemu_init_displays(void)
2622 {
2623 DisplayState *ds;
2624
2625 /* init local displays */
2626 ds = init_displaystate();
2627 qemu_display_init(ds, &dpy);
2628
2629 /* must be after terminal init, SDL library changes signal handlers */
2630 os_setup_signal_handling();
2631
2632 /* init remote displays */
2633 #ifdef CONFIG_VNC
2634 qemu_opts_foreach(qemu_find_opts("vnc"),
2635 vnc_init_func, NULL, &error_fatal);
2636 #endif
2637
2638 if (using_spice) {
2639 qemu_spice.display_init();
2640 }
2641 }
2642
2643 static void qemu_init_board(void)
2644 {
2645 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
2646
2647 if (machine_class->default_ram_id && current_machine->ram_size &&
2648 numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
2649 create_default_memdev(current_machine, mem_path);
2650 }
2651
2652 /* process plugin before CPUs are created, but once -smp has been parsed */
2653 qemu_plugin_load_list(&plugin_list, &error_fatal);
2654
2655 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2656 machine_run_board_init(current_machine);
2657
2658 drive_check_orphaned();
2659
2660 realtime_init();
2661
2662 if (hax_enabled()) {
2663 /* FIXME: why isn't cpu_synchronize_all_post_init enough? */
2664 hax_sync_vcpus();
2665 }
2666 }
2667
2668 static void qemu_create_cli_devices(void)
2669 {
2670 DeviceOption *opt;
2671
2672 soundhw_init();
2673
2674 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2675 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2676
2677 /* init USB devices */
2678 if (machine_usb(current_machine)) {
2679 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2680 exit(1);
2681 }
2682
2683 /* init generic devices */
2684 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2685 qemu_opts_foreach(qemu_find_opts("device"),
2686 device_init_func, NULL, &error_fatal);
2687 QTAILQ_FOREACH(opt, &device_opts, next) {
2688 DeviceState *dev;
2689 loc_push_restore(&opt->loc);
2690 /*
2691 * TODO Eventually we should call qmp_device_add() here to make sure it
2692 * behaves the same, but QMP still has to accept incorrectly typed
2693 * options until libvirt is fixed and we want to be strict on the CLI
2694 * from the start, so call qdev_device_add_from_qdict() directly for
2695 * now.
2696 */
2697 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2698 object_unref(OBJECT(dev));
2699 loc_pop(&opt->loc);
2700 }
2701 rom_reset_order_override();
2702 }
2703
2704 static void qemu_machine_creation_done(void)
2705 {
2706 MachineState *machine = MACHINE(qdev_get_machine());
2707
2708 /* Did we create any drives that we failed to create a device for? */
2709 drive_check_orphaned();
2710
2711 /* Don't warn about the default network setup that you get if
2712 * no command line -net or -netdev options are specified. There
2713 * are two cases that we would otherwise complain about:
2714 * (1) board doesn't support a NIC but the implicit "-net nic"
2715 * requested one
2716 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2717 * sets up a nic that isn't connected to anything.
2718 */
2719 if (!default_net && (!qtest_enabled() || has_defaults)) {
2720 net_check_clients();
2721 }
2722
2723 qdev_prop_check_globals();
2724
2725 qdev_machine_creation_done();
2726
2727 if (machine->cgs) {
2728 /*
2729 * Verify that Confidential Guest Support has actually been initialized
2730 */
2731 assert(machine->cgs->ready);
2732 }
2733
2734 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2735 exit(1);
2736 }
2737 }
2738
2739 void qmp_x_exit_preconfig(Error **errp)
2740 {
2741 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2742 error_setg(errp, "The command is permitted only before machine initialization");
2743 return;
2744 }
2745
2746 qemu_init_board();
2747 qemu_create_cli_devices();
2748 qemu_machine_creation_done();
2749
2750 if (loadvm) {
2751 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2752 }
2753 if (replay_mode != REPLAY_MODE_NONE) {
2754 replay_vmstate_init();
2755 }
2756
2757 if (incoming) {
2758 Error *local_err = NULL;
2759 if (strcmp(incoming, "defer") != 0) {
2760 qmp_migrate_incoming(incoming, &local_err);
2761 if (local_err) {
2762 error_reportf_err(local_err, "-incoming %s: ", incoming);
2763 exit(1);
2764 }
2765 }
2766 } else if (autostart) {
2767 qmp_cont(NULL);
2768 }
2769 }
2770
2771 void qemu_init(int argc, char **argv, char **envp)
2772 {
2773 QemuOpts *opts;
2774 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2775 QemuOptsList *olist;
2776 int optind;
2777 const char *optarg;
2778 MachineClass *machine_class;
2779 bool userconfig = true;
2780 FILE *vmstate_dump_file = NULL;
2781
2782 qemu_add_opts(&qemu_drive_opts);
2783 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2784 qemu_add_drive_opts(&qemu_common_drive_opts);
2785 qemu_add_drive_opts(&qemu_drive_opts);
2786 qemu_add_drive_opts(&bdrv_runtime_opts);
2787 qemu_add_opts(&qemu_chardev_opts);
2788 qemu_add_opts(&qemu_device_opts);
2789 qemu_add_opts(&qemu_netdev_opts);
2790 qemu_add_opts(&qemu_nic_opts);
2791 qemu_add_opts(&qemu_net_opts);
2792 qemu_add_opts(&qemu_rtc_opts);
2793 qemu_add_opts(&qemu_global_opts);
2794 qemu_add_opts(&qemu_mon_opts);
2795 qemu_add_opts(&qemu_trace_opts);
2796 qemu_plugin_add_opts();
2797 qemu_add_opts(&qemu_option_rom_opts);
2798 qemu_add_opts(&qemu_accel_opts);
2799 qemu_add_opts(&qemu_mem_opts);
2800 qemu_add_opts(&qemu_smp_opts);
2801 qemu_add_opts(&qemu_boot_opts);
2802 qemu_add_opts(&qemu_add_fd_opts);
2803 qemu_add_opts(&qemu_object_opts);
2804 qemu_add_opts(&qemu_tpmdev_opts);
2805 qemu_add_opts(&qemu_overcommit_opts);
2806 qemu_add_opts(&qemu_msg_opts);
2807 qemu_add_opts(&qemu_name_opts);
2808 qemu_add_opts(&qemu_numa_opts);
2809 qemu_add_opts(&qemu_icount_opts);
2810 qemu_add_opts(&qemu_semihosting_config_opts);
2811 qemu_add_opts(&qemu_fw_cfg_opts);
2812 qemu_add_opts(&qemu_action_opts);
2813 module_call_init(MODULE_INIT_OPTS);
2814
2815 error_init(argv[0]);
2816 qemu_init_exec_dir(argv[0]);
2817
2818 qemu_init_arch_modules();
2819
2820 qemu_init_subsystems();
2821
2822 /* first pass of option parsing */
2823 optind = 1;
2824 while (optind < argc) {
2825 if (argv[optind][0] != '-') {
2826 /* disk image */
2827 optind++;
2828 } else {
2829 const QEMUOption *popt;
2830
2831 popt = lookup_opt(argc, argv, &optarg, &optind);
2832 switch (popt->index) {
2833 case QEMU_OPTION_nouserconfig:
2834 userconfig = false;
2835 break;
2836 }
2837 }
2838 }
2839
2840 machine_opts_dict = qdict_new();
2841 if (userconfig) {
2842 qemu_read_default_config_file(&error_fatal);
2843 }
2844
2845 /* second pass of option parsing */
2846 optind = 1;
2847 for(;;) {
2848 if (optind >= argc)
2849 break;
2850 if (argv[optind][0] != '-') {
2851 loc_set_cmdline(argv, optind, 1);
2852 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2853 } else {
2854 const QEMUOption *popt;
2855
2856 popt = lookup_opt(argc, argv, &optarg, &optind);
2857 if (!(popt->arch_mask & arch_type)) {
2858 error_report("Option not supported for this target");
2859 exit(1);
2860 }
2861 switch(popt->index) {
2862 case QEMU_OPTION_cpu:
2863 /* hw initialization will check this */
2864 cpu_option = optarg;
2865 break;
2866 case QEMU_OPTION_hda:
2867 case QEMU_OPTION_hdb:
2868 case QEMU_OPTION_hdc:
2869 case QEMU_OPTION_hdd:
2870 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2871 HD_OPTS);
2872 break;
2873 case QEMU_OPTION_blockdev:
2874 {
2875 Visitor *v;
2876 BlockdevOptionsQueueEntry *bdo;
2877
2878 v = qobject_input_visitor_new_str(optarg, "driver",
2879 &error_fatal);
2880
2881 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2882 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2883 &error_fatal);
2884 visit_free(v);
2885 loc_save(&bdo->loc);
2886 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2887 break;
2888 }
2889 case QEMU_OPTION_drive:
2890 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2891 optarg, false);
2892 if (opts == NULL) {
2893 exit(1);
2894 }
2895 break;
2896 case QEMU_OPTION_set:
2897 qemu_set_option(optarg, &error_fatal);
2898 break;
2899 case QEMU_OPTION_global:
2900 if (qemu_global_option(optarg) != 0)
2901 exit(1);
2902 break;
2903 case QEMU_OPTION_mtdblock:
2904 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2905 break;
2906 case QEMU_OPTION_sd:
2907 drive_add(IF_SD, -1, optarg, SD_OPTS);
2908 break;
2909 case QEMU_OPTION_pflash:
2910 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2911 break;
2912 case QEMU_OPTION_snapshot:
2913 {
2914 Error *blocker = NULL;
2915 snapshot = 1;
2916 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
2917 "-snapshot");
2918 replay_add_blocker(blocker);
2919 }
2920 break;
2921 case QEMU_OPTION_numa:
2922 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2923 optarg, true);
2924 if (!opts) {
2925 exit(1);
2926 }
2927 break;
2928 case QEMU_OPTION_display:
2929 parse_display(optarg);
2930 break;
2931 case QEMU_OPTION_nographic:
2932 qdict_put_str(machine_opts_dict, "graphics", "off");
2933 nographic = true;
2934 dpy.type = DISPLAY_TYPE_NONE;
2935 break;
2936 case QEMU_OPTION_curses:
2937 warn_report("-curses is deprecated, "
2938 "use -display curses instead.");
2939 #ifdef CONFIG_CURSES
2940 dpy.type = DISPLAY_TYPE_CURSES;
2941 #else
2942 error_report("curses or iconv support is disabled");
2943 exit(1);
2944 #endif
2945 break;
2946 case QEMU_OPTION_portrait:
2947 graphic_rotate = 90;
2948 break;
2949 case QEMU_OPTION_rotate:
2950 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2951 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2952 graphic_rotate != 180 && graphic_rotate != 270) {
2953 error_report("only 90, 180, 270 deg rotation is available");
2954 exit(1);
2955 }
2956 break;
2957 case QEMU_OPTION_kernel:
2958 qdict_put_str(machine_opts_dict, "kernel", optarg);
2959 break;
2960 case QEMU_OPTION_initrd:
2961 qdict_put_str(machine_opts_dict, "initrd", optarg);
2962 break;
2963 case QEMU_OPTION_append:
2964 qdict_put_str(machine_opts_dict, "append", optarg);
2965 break;
2966 case QEMU_OPTION_dtb:
2967 qdict_put_str(machine_opts_dict, "dtb", optarg);
2968 break;
2969 case QEMU_OPTION_cdrom:
2970 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2971 break;
2972 case QEMU_OPTION_boot:
2973 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
2974 optarg, true);
2975 if (!opts) {
2976 exit(1);
2977 }
2978 break;
2979 case QEMU_OPTION_fda:
2980 case QEMU_OPTION_fdb:
2981 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2982 optarg, FD_OPTS);
2983 break;
2984 case QEMU_OPTION_no_fd_bootchk:
2985 fd_bootchk = 0;
2986 break;
2987 case QEMU_OPTION_netdev:
2988 default_net = 0;
2989 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2990 exit(1);
2991 }
2992 break;
2993 case QEMU_OPTION_nic:
2994 default_net = 0;
2995 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
2996 exit(1);
2997 }
2998 break;
2999 case QEMU_OPTION_net:
3000 default_net = 0;
3001 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3002 exit(1);
3003 }
3004 break;
3005 #ifdef CONFIG_LIBISCSI
3006 case QEMU_OPTION_iscsi:
3007 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3008 optarg, false);
3009 if (!opts) {
3010 exit(1);
3011 }
3012 break;
3013 #endif
3014 case QEMU_OPTION_audio_help:
3015 audio_legacy_help();
3016 exit (0);
3017 break;
3018 case QEMU_OPTION_audiodev:
3019 audio_parse_option(optarg);
3020 break;
3021 case QEMU_OPTION_soundhw:
3022 select_soundhw (optarg);
3023 break;
3024 case QEMU_OPTION_h:
3025 help(0);
3026 break;
3027 case QEMU_OPTION_version:
3028 version();
3029 exit(0);
3030 break;
3031 case QEMU_OPTION_m:
3032 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3033 optarg, true);
3034 if (!opts) {
3035 exit(EXIT_FAILURE);
3036 }
3037 break;
3038 #ifdef CONFIG_TPM
3039 case QEMU_OPTION_tpmdev:
3040 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3041 exit(1);
3042 }
3043 break;
3044 #endif
3045 case QEMU_OPTION_mempath:
3046 mem_path = optarg;
3047 break;
3048 case QEMU_OPTION_mem_prealloc:
3049 mem_prealloc = 1;
3050 break;
3051 case QEMU_OPTION_d:
3052 log_mask = optarg;
3053 break;
3054 case QEMU_OPTION_D:
3055 log_file = optarg;
3056 break;
3057 case QEMU_OPTION_DFILTER:
3058 qemu_set_dfilter_ranges(optarg, &error_fatal);
3059 break;
3060 case QEMU_OPTION_seed:
3061 qemu_guest_random_seed_main(optarg, &error_fatal);
3062 break;
3063 case QEMU_OPTION_s:
3064 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3065 break;
3066 case QEMU_OPTION_gdb:
3067 add_device_config(DEV_GDB, optarg);
3068 break;
3069 case QEMU_OPTION_L:
3070 if (is_help_option(optarg)) {
3071 list_data_dirs = true;
3072 } else {
3073 qemu_add_data_dir(g_strdup(optarg));
3074 }
3075 break;
3076 case QEMU_OPTION_bios:
3077 qdict_put_str(machine_opts_dict, "firmware", optarg);
3078 break;
3079 case QEMU_OPTION_singlestep:
3080 singlestep = 1;
3081 break;
3082 case QEMU_OPTION_S:
3083 autostart = 0;
3084 break;
3085 case QEMU_OPTION_k:
3086 keyboard_layout = optarg;
3087 break;
3088 case QEMU_OPTION_vga:
3089 vga_model = optarg;
3090 default_vga = 0;
3091 break;
3092 case QEMU_OPTION_g:
3093 {
3094 const char *p;
3095 int w, h, depth;
3096 p = optarg;
3097 w = strtol(p, (char **)&p, 10);
3098 if (w <= 0) {
3099 graphic_error:
3100 error_report("invalid resolution or depth");
3101 exit(1);
3102 }
3103 if (*p != 'x')
3104 goto graphic_error;
3105 p++;
3106 h = strtol(p, (char **)&p, 10);
3107 if (h <= 0)
3108 goto graphic_error;
3109 if (*p == 'x') {
3110 p++;
3111 depth = strtol(p, (char **)&p, 10);
3112 if (depth != 1 && depth != 2 && depth != 4 &&
3113 depth != 8 && depth != 15 && depth != 16 &&
3114 depth != 24 && depth != 32)
3115 goto graphic_error;
3116 } else if (*p == '\0') {
3117 depth = graphic_depth;
3118 } else {
3119 goto graphic_error;
3120 }
3121
3122 graphic_width = w;
3123 graphic_height = h;
3124 graphic_depth = depth;
3125 }
3126 break;
3127 case QEMU_OPTION_echr:
3128 {
3129 char *r;
3130 term_escape_char = strtol(optarg, &r, 0);
3131 if (r == optarg)
3132 printf("Bad argument to echr\n");
3133 break;
3134 }
3135 case QEMU_OPTION_monitor:
3136 default_monitor = 0;
3137 if (strncmp(optarg, "none", 4)) {
3138 monitor_parse(optarg, "readline", false);
3139 }
3140 break;
3141 case QEMU_OPTION_qmp:
3142 monitor_parse(optarg, "control", false);
3143 default_monitor = 0;
3144 break;
3145 case QEMU_OPTION_qmp_pretty:
3146 monitor_parse(optarg, "control", true);
3147 default_monitor = 0;
3148 break;
3149 case QEMU_OPTION_mon:
3150 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3151 true);
3152 if (!opts) {
3153 exit(1);
3154 }
3155 default_monitor = 0;
3156 break;
3157 case QEMU_OPTION_chardev:
3158 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3159 optarg, true);
3160 if (!opts) {
3161 exit(1);
3162 }
3163 break;
3164 case QEMU_OPTION_fsdev:
3165 olist = qemu_find_opts("fsdev");
3166 if (!olist) {
3167 error_report("fsdev support is disabled");
3168 exit(1);
3169 }
3170 opts = qemu_opts_parse_noisily(olist, optarg, true);
3171 if (!opts) {
3172 exit(1);
3173 }
3174 break;
3175 case QEMU_OPTION_virtfs: {
3176 QemuOpts *fsdev;
3177 QemuOpts *device;
3178 const char *writeout, *sock_fd, *socket, *path, *security_model,
3179 *multidevs;
3180
3181 olist = qemu_find_opts("virtfs");
3182 if (!olist) {
3183 error_report("virtfs support is disabled");
3184 exit(1);
3185 }
3186 opts = qemu_opts_parse_noisily(olist, optarg, true);
3187 if (!opts) {
3188 exit(1);
3189 }
3190
3191 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3192 qemu_opt_get(opts, "mount_tag") == NULL) {
3193 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3194 exit(1);
3195 }
3196 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3197 qemu_opts_id(opts) ?:
3198 qemu_opt_get(opts, "mount_tag"),
3199 1, NULL);
3200 if (!fsdev) {
3201 error_report("duplicate or invalid fsdev id: %s",
3202 qemu_opt_get(opts, "mount_tag"));
3203 exit(1);
3204 }
3205
3206 writeout = qemu_opt_get(opts, "writeout");
3207 if (writeout) {
3208 #ifdef CONFIG_SYNC_FILE_RANGE
3209 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3210 #else
3211 error_report("writeout=immediate not supported "
3212 "on this platform");
3213 exit(1);
3214 #endif
3215 }
3216 qemu_opt_set(fsdev, "fsdriver",
3217 qemu_opt_get(opts, "fsdriver"), &error_abort);
3218 path = qemu_opt_get(opts, "path");
3219 if (path) {
3220 qemu_opt_set(fsdev, "path", path, &error_abort);
3221 }
3222 security_model = qemu_opt_get(opts, "security_model");
3223 if (security_model) {
3224 qemu_opt_set(fsdev, "security_model", security_model,
3225 &error_abort);
3226 }
3227 socket = qemu_opt_get(opts, "socket");
3228 if (socket) {
3229 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3230 }
3231 sock_fd = qemu_opt_get(opts, "sock_fd");
3232 if (sock_fd) {
3233 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3234 }
3235
3236 qemu_opt_set_bool(fsdev, "readonly",
3237 qemu_opt_get_bool(opts, "readonly", 0),
3238 &error_abort);
3239 multidevs = qemu_opt_get(opts, "multidevs");
3240 if (multidevs) {
3241 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3242 }
3243 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3244 &error_abort);
3245 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3246 qemu_opt_set(device, "fsdev",
3247 qemu_opts_id(fsdev), &error_abort);
3248 qemu_opt_set(device, "mount_tag",
3249 qemu_opt_get(opts, "mount_tag"), &error_abort);
3250 break;
3251 }
3252 case QEMU_OPTION_serial:
3253 add_device_config(DEV_SERIAL, optarg);
3254 default_serial = 0;
3255 if (strncmp(optarg, "mon:", 4) == 0) {
3256 default_monitor = 0;
3257 }
3258 break;
3259 case QEMU_OPTION_watchdog:
3260 if (watchdog) {
3261 error_report("only one watchdog option may be given");
3262 exit(1);
3263 }
3264 warn_report("-watchdog is deprecated; use -device instead.");
3265 watchdog = optarg;
3266 break;
3267 case QEMU_OPTION_action:
3268 olist = qemu_find_opts("action");
3269 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3270 exit(1);
3271 }
3272 break;
3273 case QEMU_OPTION_watchdog_action: {
3274 QemuOpts *opts;
3275 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3276 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3277 break;
3278 }
3279 case QEMU_OPTION_parallel:
3280 add_device_config(DEV_PARALLEL, optarg);
3281 default_parallel = 0;
3282 if (strncmp(optarg, "mon:", 4) == 0) {
3283 default_monitor = 0;
3284 }
3285 break;
3286 case QEMU_OPTION_debugcon:
3287 add_device_config(DEV_DEBUGCON, optarg);
3288 break;
3289 case QEMU_OPTION_loadvm:
3290 loadvm = optarg;
3291 break;
3292 case QEMU_OPTION_full_screen:
3293 dpy.has_full_screen = true;
3294 dpy.full_screen = true;
3295 break;
3296 case QEMU_OPTION_alt_grab:
3297 alt_grab = 1;
3298 warn_report("-alt-grab is deprecated, please use "
3299 "-display sdl,grab-mod=lshift-lctrl-lalt instead.");
3300 break;
3301 case QEMU_OPTION_ctrl_grab:
3302 ctrl_grab = 1;
3303 warn_report("-ctrl-grab is deprecated, please use "
3304 "-display sdl,grab-mod=rctrl instead.");
3305 break;
3306 case QEMU_OPTION_sdl:
3307 warn_report("-sdl is deprecated, use -display sdl instead.");
3308 #ifdef CONFIG_SDL
3309 dpy.type = DISPLAY_TYPE_SDL;
3310 break;
3311 #else
3312 error_report("SDL support is disabled");
3313 exit(1);
3314 #endif
3315 case QEMU_OPTION_pidfile:
3316 pid_file = optarg;
3317 break;
3318 case QEMU_OPTION_win2k_hack:
3319 win2k_install_hack = 1;
3320 break;
3321 case QEMU_OPTION_acpitable:
3322 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3323 optarg, true);
3324 if (!opts) {
3325 exit(1);
3326 }
3327 acpi_table_add(opts, &error_fatal);
3328 break;
3329 case QEMU_OPTION_smbios:
3330 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3331 optarg, false);
3332 if (!opts) {
3333 exit(1);
3334 }
3335 smbios_entry_add(opts, &error_fatal);
3336 break;
3337 case QEMU_OPTION_fwcfg:
3338 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3339 optarg, true);
3340 if (opts == NULL) {
3341 exit(1);
3342 }
3343 break;
3344 case QEMU_OPTION_preconfig:
3345 preconfig_requested = true;
3346 break;
3347 case QEMU_OPTION_enable_kvm:
3348 qdict_put_str(machine_opts_dict, "accel", "kvm");
3349 break;
3350 case QEMU_OPTION_M:
3351 case QEMU_OPTION_machine:
3352 {
3353 bool help;
3354
3355 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3356 if (help) {
3357 machine_help_func(machine_opts_dict);
3358 exit(EXIT_SUCCESS);
3359 }
3360 break;
3361 }
3362 case QEMU_OPTION_accel:
3363 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3364 optarg, true);
3365 optarg = qemu_opt_get(accel_opts, "accel");
3366 if (!optarg || is_help_option(optarg)) {
3367 printf("Accelerators supported in QEMU binary:\n");
3368 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3369 false);
3370 for (el = accel_list; el; el = el->next) {
3371 gchar *typename = g_strdup(object_class_get_name(
3372 OBJECT_CLASS(el->data)));
3373 /* omit qtest which is used for tests only */
3374 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3375 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3376 gchar **optname = g_strsplit(typename,
3377 ACCEL_CLASS_SUFFIX, 0);
3378 printf("%s\n", optname[0]);
3379 g_strfreev(optname);
3380 }
3381 g_free(typename);
3382 }
3383 g_slist_free(accel_list);
3384 exit(0);
3385 }
3386 break;
3387 case QEMU_OPTION_usb:
3388 qdict_put_str(machine_opts_dict, "usb", "on");
3389 break;
3390 case QEMU_OPTION_usbdevice:
3391 qdict_put_str(machine_opts_dict, "usb", "on");
3392 add_device_config(DEV_USB, optarg);
3393 break;
3394 case QEMU_OPTION_device:
3395 if (optarg[0] == '{') {
3396 QObject *obj = qobject_from_json(optarg, &error_fatal);
3397 DeviceOption *opt = g_new0(DeviceOption, 1);
3398 opt->opts = qobject_to(QDict, obj);
3399 loc_save(&opt->loc);
3400 assert(opt->opts != NULL);
3401 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3402 } else {
3403 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3404 optarg, true)) {
3405 exit(1);
3406 }
3407 }
3408 break;
3409 case QEMU_OPTION_smp:
3410 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3411 "smp", optarg);
3412 break;
3413 case QEMU_OPTION_vnc:
3414 vnc_parse(optarg);
3415 break;
3416 case QEMU_OPTION_no_acpi:
3417 qdict_put_str(machine_opts_dict, "acpi", "off");
3418 break;
3419 case QEMU_OPTION_no_hpet:
3420 qdict_put_str(machine_opts_dict, "hpet", "off");
3421 break;
3422 case QEMU_OPTION_no_reboot:
3423 olist = qemu_find_opts("action");
3424 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3425 break;
3426 case QEMU_OPTION_no_shutdown:
3427 olist = qemu_find_opts("action");
3428 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3429 break;
3430 case QEMU_OPTION_uuid:
3431 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3432 error_report("failed to parse UUID string: wrong format");
3433 exit(1);
3434 }
3435 qemu_uuid_set = true;
3436 break;
3437 case QEMU_OPTION_option_rom:
3438 if (nb_option_roms >= MAX_OPTION_ROMS) {
3439 error_report("too many option ROMs");
3440 exit(1);
3441 }
3442 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3443 optarg, true);
3444 if (!opts) {
3445 exit(1);
3446 }
3447 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3448 option_rom[nb_option_roms].bootindex =
3449 qemu_opt_get_number(opts, "bootindex", -1);
3450 if (!option_rom[nb_option_roms].name) {
3451 error_report("Option ROM file is not specified");
3452 exit(1);
3453 }
3454 nb_option_roms++;
3455 break;
3456 case QEMU_OPTION_semihosting:
3457 qemu_semihosting_enable();
3458 break;
3459 case QEMU_OPTION_semihosting_config:
3460 if (qemu_semihosting_config_options(optarg) != 0) {
3461 exit(1);
3462 }
3463 break;
3464 case QEMU_OPTION_name:
3465 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3466 optarg, true);
3467 if (!opts) {
3468 exit(1);
3469 }
3470 /* Capture guest name if -msg guest-name is used later */
3471 error_guest_name = qemu_opt_get(opts, "guest");
3472 break;
3473 case QEMU_OPTION_prom_env:
3474 if (nb_prom_envs >= MAX_PROM_ENVS) {
3475 error_report("too many prom variables");
3476 exit(1);
3477 }
3478 prom_envs[nb_prom_envs] = optarg;
3479 nb_prom_envs++;
3480 break;
3481 case QEMU_OPTION_old_param:
3482 old_param = 1;
3483 break;
3484 case QEMU_OPTION_rtc:
3485 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3486 false);
3487 if (!opts) {
3488 exit(1);
3489 }
3490 break;
3491 case QEMU_OPTION_icount:
3492 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3493 optarg, true);
3494 if (!icount_opts) {
3495 exit(1);
3496 }
3497 break;
3498 case QEMU_OPTION_incoming:
3499 if (!incoming) {
3500 runstate_set(RUN_STATE_INMIGRATE);
3501 }
3502 incoming = optarg;
3503 break;
3504 case QEMU_OPTION_only_migratable:
3505 only_migratable = 1;
3506 break;
3507 case QEMU_OPTION_nodefaults:
3508 has_defaults = 0;
3509 break;
3510 case QEMU_OPTION_xen_domid:
3511 if (!(accel_find("xen"))) {
3512 error_report("Option not supported for this target");
3513 exit(1);
3514 }
3515 xen_domid = atoi(optarg);
3516 break;
3517 case QEMU_OPTION_xen_attach:
3518 if (!(accel_find("xen"))) {
3519 error_report("Option not supported for this target");
3520 exit(1);
3521 }
3522 xen_mode = XEN_ATTACH;
3523 break;
3524 case QEMU_OPTION_xen_domid_restrict:
3525 if (!(accel_find("xen"))) {
3526 error_report("Option not supported for this target");
3527 exit(1);
3528 }
3529 xen_domid_restrict = true;
3530 break;
3531 case QEMU_OPTION_trace:
3532 trace_opt_parse(optarg);
3533 break;
3534 case QEMU_OPTION_plugin:
3535 qemu_plugin_opt_parse(optarg, &plugin_list);
3536 break;
3537 case QEMU_OPTION_readconfig:
3538 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3539 break;
3540 #ifdef CONFIG_SPICE
3541 case QEMU_OPTION_spice:
3542 olist = qemu_find_opts_err("spice", NULL);
3543 if (!olist) {
3544 error_report("spice support is disabled");
3545 exit(1);
3546 }
3547 opts = qemu_opts_parse_noisily(olist, optarg, false);
3548 if (!opts) {
3549 exit(1);
3550 }
3551 display_remote++;
3552 break;
3553 #endif
3554 case QEMU_OPTION_qtest:
3555 qtest_chrdev = optarg;
3556 break;
3557 case QEMU_OPTION_qtest_log:
3558 qtest_log = optarg;
3559 break;
3560 case QEMU_OPTION_sandbox:
3561 olist = qemu_find_opts("sandbox");
3562 if (!olist) {
3563 #ifndef CONFIG_SECCOMP
3564 error_report("-sandbox support is not enabled "
3565 "in this QEMU binary");
3566 #endif
3567 exit(1);
3568 }
3569
3570 opts = qemu_opts_parse_noisily(olist, optarg, true);
3571 if (!opts) {
3572 exit(1);
3573 }
3574 break;
3575 case QEMU_OPTION_add_fd:
3576 #ifndef _WIN32
3577 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3578 optarg, false);
3579 if (!opts) {
3580 exit(1);
3581 }
3582 #else
3583 error_report("File descriptor passing is disabled on this "
3584 "platform");
3585 exit(1);
3586 #endif
3587 break;
3588 case QEMU_OPTION_object:
3589 object_option_parse(optarg);
3590 break;
3591 case QEMU_OPTION_overcommit:
3592 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3593 optarg, false);
3594 if (!opts) {
3595 exit(1);
3596 }
3597 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3598 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3599 break;
3600 case QEMU_OPTION_compat:
3601 {
3602 CompatPolicy *opts;
3603 Visitor *v;
3604
3605 v = qobject_input_visitor_new_str(optarg, NULL,
3606 &error_fatal);
3607
3608 visit_type_CompatPolicy(v, NULL, &opts, &error_fatal);
3609 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts);
3610
3611 qapi_free_CompatPolicy(opts);
3612 visit_free(v);
3613 break;
3614 }
3615 case QEMU_OPTION_msg:
3616 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3617 false);
3618 if (!opts) {
3619 exit(1);
3620 }
3621 configure_msg(opts);
3622 break;
3623 case QEMU_OPTION_dump_vmstate:
3624 if (vmstate_dump_file) {
3625 error_report("only one '-dump-vmstate' "
3626 "option may be given");
3627 exit(1);
3628 }
3629 vmstate_dump_file = fopen(optarg, "w");
3630 if (vmstate_dump_file == NULL) {
3631 error_report("open %s: %s", optarg, strerror(errno));
3632 exit(1);
3633 }
3634 break;
3635 case QEMU_OPTION_enable_sync_profile:
3636 qsp_enable();
3637 break;
3638 case QEMU_OPTION_nouserconfig:
3639 /* Nothing to be parsed here. Especially, do not error out below. */
3640 break;
3641 default:
3642 if (os_parse_cmd_args(popt->index, optarg)) {
3643 error_report("Option not supported in this build");
3644 exit(1);
3645 }
3646 }
3647 }
3648 }
3649 /*
3650 * Clear error location left behind by the loop.
3651 * Best done right after the loop. Do not insert code here!
3652 */
3653 loc_set_none();
3654
3655 qemu_validate_options(machine_opts_dict);
3656 qemu_process_sugar_options();
3657
3658 /*
3659 * These options affect everything else and should be processed
3660 * before daemonizing.
3661 */
3662 qemu_process_early_options();
3663
3664 qemu_process_help_options();
3665 qemu_maybe_daemonize(pid_file);
3666
3667 /*
3668 * The trace backend must be initialized after daemonizing.
3669 * trace_init_backends() will call st_init(), which will create the
3670 * trace thread in the parent, and also register st_flush_trace_buffer()
3671 * in atexit(). This function will force the parent to wait for the
3672 * writeout thread to finish, which will not occur, and the parent
3673 * process will be left in the host.
3674 */
3675 if (!trace_init_backends()) {
3676 exit(1);
3677 }
3678 trace_init_file();
3679
3680 qemu_init_main_loop(&error_fatal);
3681 cpu_timers_init();
3682
3683 user_register_global_props();
3684 replay_configure(icount_opts);
3685
3686 configure_rtc(qemu_find_opts_singleton("rtc"));
3687
3688 qemu_create_machine(machine_opts_dict);
3689
3690 suspend_mux_open();
3691
3692 qemu_disable_default_devices();
3693 qemu_create_default_devices();
3694 qemu_create_early_backends();
3695
3696 qemu_apply_legacy_machine_options(machine_opts_dict);
3697 qemu_apply_machine_options(machine_opts_dict);
3698 qobject_unref(machine_opts_dict);
3699 phase_advance(PHASE_MACHINE_CREATED);
3700
3701 /*
3702 * Note: uses machine properties such as kernel-irqchip, must run
3703 * after qemu_apply_machine_options.
3704 */
3705 configure_accelerators(argv[0]);
3706 phase_advance(PHASE_ACCEL_CREATED);
3707
3708 /*
3709 * Beware, QOM objects created before this point miss global and
3710 * compat properties.
3711 *
3712 * Global properties get set up by qdev_prop_register_global(),
3713 * called from user_register_global_props(), and certain option
3714 * desugaring. Also in CPU feature desugaring (buried in
3715 * parse_cpu_option()), which happens below this point, but may
3716 * only target the CPU type, which can only be created after
3717 * parse_cpu_option() returned the type.
3718 *
3719 * Machine compat properties: object_set_machine_compat_props().
3720 * Accelerator compat props: object_set_accelerator_compat_props(),
3721 * called from do_configure_accelerator().
3722 */
3723
3724 machine_class = MACHINE_GET_CLASS(current_machine);
3725 if (!qtest_enabled() && machine_class->deprecation_reason) {
3726 error_report("Machine type '%s' is deprecated: %s",
3727 machine_class->name, machine_class->deprecation_reason);
3728 }
3729
3730 /*
3731 * Note: creates a QOM object, must run only after global and
3732 * compat properties have been set up.
3733 */
3734 migration_object_init();
3735
3736 qemu_create_late_backends();
3737
3738 /* parse features once if machine provides default cpu_type */
3739 current_machine->cpu_type = machine_class->default_cpu_type;
3740 if (cpu_option) {
3741 current_machine->cpu_type = parse_cpu_option(cpu_option);
3742 }
3743 /* NB: for machine none cpu_type could STILL be NULL here! */
3744
3745 qemu_resolve_machine_memdev();
3746 parse_numa_opts(current_machine);
3747
3748 if (vmstate_dump_file) {
3749 /* dump and exit */
3750 module_load_qom_all();
3751 dump_vmstate_json_to_file(vmstate_dump_file);
3752 exit(0);
3753 }
3754
3755 if (!preconfig_requested) {
3756 qmp_x_exit_preconfig(&error_fatal);
3757 }
3758 qemu_init_displays();
3759 accel_setup_post(current_machine);
3760 os_setup_post();
3761 resume_mux_open();
3762 }
Ray Wang's QEMU Repository