?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
pnv/xive2: Don't overwrite PC registers when writing TCTXT registers
[qemu/rayw.git] / softmmu / vl.c
blob84a31eba76474898dd494be8f692b1ab820e4ddc
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 #include "hw/cxl/cxl.h"
97 #ifdef CONFIG_VIRTFS
98 #include "fsdev/qemu-fsdev.h"
99 #endif
100 #include "sysemu/qtest.h"
101
102 #include "disas/disas.h"
103
104 #include "trace.h"
105 #include "trace/control.h"
106 #include "qemu/plugin.h"
107 #include "qemu/queue.h"
108 #include "sysemu/arch_init.h"
109 #include "exec/confidential-guest-support.h"
110
111 #include "ui/qemu-spice.h"
112 #include "qapi/string-input-visitor.h"
113 #include "qapi/opts-visitor.h"
114 #include "qapi/clone-visitor.h"
115 #include "qom/object_interfaces.h"
116 #include "semihosting/semihost.h"
117 #include "crypto/init.h"
118 #include "sysemu/replay.h"
119 #include "qapi/qapi-events-run-state.h"
120 #include "qapi/qapi-types-audio.h"
121 #include "qapi/qapi-visit-audio.h"
122 #include "qapi/qapi-visit-block-core.h"
123 #include "qapi/qapi-visit-compat.h"
124 #include "qapi/qapi-visit-machine.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-migration.h"
128 #include "qapi/qapi-commands-misc.h"
129 #include "qapi/qapi-visit-qom.h"
130 #include "qapi/qapi-commands-ui.h"
131 #include "qapi/qmp/qdict.h"
132 #include "block/qdict.h"
133 #include "qapi/qmp/qerror.h"
134 #include "sysemu/iothread.h"
135 #include "qemu/guest-random.h"
136 #include "qemu/keyval.h"
137
138 #include "config-host.h"
139
140 #define MAX_VIRTIO_CONSOLES 1
141
142 typedef struct BlockdevOptionsQueueEntry {
143 BlockdevOptions *bdo;
144 Location loc;
145 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
146 } BlockdevOptionsQueueEntry;
147
148 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
149
150 typedef struct CXLFMWOptionQueueEntry {
151 CXLFixedMemoryWindowOptions *opts;
152 Location loc;
153 QSIMPLEQ_ENTRY(CXLFMWOptionQueueEntry) entry;
154 } CXLFMWOptionQueueEntry;
155
156 typedef struct ObjectOption {
157 ObjectOptions *opts;
158 QTAILQ_ENTRY(ObjectOption) next;
159 } ObjectOption;
160
161 typedef struct DeviceOption {
162 QDict *opts;
163 Location loc;
164 QTAILQ_ENTRY(DeviceOption) next;
165 } DeviceOption;
166
167 static const char *cpu_option;
168 static const char *mem_path;
169 static const char *incoming;
170 static const char *loadvm;
171 static const char *accelerators;
172 static bool have_custom_ram_size;
173 static const char *ram_memdev_id;
174 static QDict *machine_opts_dict;
175 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
176 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
177 static int display_remote;
178 static int snapshot;
179 static bool preconfig_requested;
180 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
181 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
182 static QSIMPLEQ_HEAD(, CXLFMWOptionQueueEntry) CXLFMW_opts =
183 QSIMPLEQ_HEAD_INITIALIZER(CXLFMW_opts);
184 static bool nographic = false;
185 static int mem_prealloc; /* force preallocation of physical target memory */
186 static const char *vga_model = NULL;
187 static DisplayOptions dpy;
188 static int num_serial_hds;
189 static Chardev **serial_hds;
190 static const char *log_mask;
191 static const char *log_file;
192 static bool list_data_dirs;
193 static const char *watchdog;
194 static const char *qtest_chrdev;
195 static const char *qtest_log;
196
197 static int has_defaults = 1;
198 static int default_serial = 1;
199 static int default_parallel = 1;
200 static int default_monitor = 1;
201 static int default_floppy = 1;
202 static int default_cdrom = 1;
203 static int default_sdcard = 1;
204 static int default_vga = 1;
205 static int default_net = 1;
206
207 static struct {
208 const char *driver;
209 int *flag;
210 } default_list[] = {
211 { .driver = "isa-serial", .flag = &default_serial },
212 { .driver = "isa-parallel", .flag = &default_parallel },
213 { .driver = "isa-fdc", .flag = &default_floppy },
214 { .driver = "floppy", .flag = &default_floppy },
215 { .driver = "ide-cd", .flag = &default_cdrom },
216 { .driver = "ide-hd", .flag = &default_cdrom },
217 { .driver = "scsi-cd", .flag = &default_cdrom },
218 { .driver = "scsi-hd", .flag = &default_cdrom },
219 { .driver = "VGA", .flag = &default_vga },
220 { .driver = "isa-vga", .flag = &default_vga },
221 { .driver = "cirrus-vga", .flag = &default_vga },
222 { .driver = "isa-cirrus-vga", .flag = &default_vga },
223 { .driver = "vmware-svga", .flag = &default_vga },
224 { .driver = "qxl-vga", .flag = &default_vga },
225 { .driver = "virtio-vga", .flag = &default_vga },
226 { .driver = "ati-vga", .flag = &default_vga },
227 { .driver = "vhost-user-vga", .flag = &default_vga },
228 { .driver = "virtio-vga-gl", .flag = &default_vga },
229 };
230
231 static QemuOptsList qemu_rtc_opts = {
232 .name = "rtc",
233 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
234 .merge_lists = true,
235 .desc = {
236 {
237 .name = "base",
238 .type = QEMU_OPT_STRING,
239 },{
240 .name = "clock",
241 .type = QEMU_OPT_STRING,
242 },{
243 .name = "driftfix",
244 .type = QEMU_OPT_STRING,
245 },
246 { /* end of list */ }
247 },
248 };
249
250 static QemuOptsList qemu_option_rom_opts = {
251 .name = "option-rom",
252 .implied_opt_name = "romfile",
253 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
254 .desc = {
255 {
256 .name = "bootindex",
257 .type = QEMU_OPT_NUMBER,
258 }, {
259 .name = "romfile",
260 .type = QEMU_OPT_STRING,
261 },
262 { /* end of list */ }
263 },
264 };
265
266 static QemuOptsList qemu_accel_opts = {
267 .name = "accel",
268 .implied_opt_name = "accel",
269 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
270 .desc = {
271 /*
272 * no elements => accept any
273 * sanity checking will happen later
274 * when setting accelerator properties
275 */
276 { }
277 },
278 };
279
280 static QemuOptsList qemu_boot_opts = {
281 .name = "boot-opts",
282 .implied_opt_name = "order",
283 .merge_lists = true,
284 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
285 .desc = {
286 {
287 .name = "order",
288 .type = QEMU_OPT_STRING,
289 }, {
290 .name = "once",
291 .type = QEMU_OPT_STRING,
292 }, {
293 .name = "menu",
294 .type = QEMU_OPT_BOOL,
295 }, {
296 .name = "splash",
297 .type = QEMU_OPT_STRING,
298 }, {
299 .name = "splash-time",
300 .type = QEMU_OPT_NUMBER,
301 }, {
302 .name = "reboot-timeout",
303 .type = QEMU_OPT_NUMBER,
304 }, {
305 .name = "strict",
306 .type = QEMU_OPT_BOOL,
307 },
308 { /*End of list */ }
309 },
310 };
311
312 static QemuOptsList qemu_add_fd_opts = {
313 .name = "add-fd",
314 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
315 .desc = {
316 {
317 .name = "fd",
318 .type = QEMU_OPT_NUMBER,
319 .help = "file descriptor of which a duplicate is added to fd set",
320 },{
321 .name = "set",
322 .type = QEMU_OPT_NUMBER,
323 .help = "ID of the fd set to add fd to",
324 },{
325 .name = "opaque",
326 .type = QEMU_OPT_STRING,
327 .help = "free-form string used to describe fd",
328 },
329 { /* end of list */ }
330 },
331 };
332
333 static QemuOptsList qemu_object_opts = {
334 .name = "object",
335 .implied_opt_name = "qom-type",
336 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
337 .desc = {
338 { }
339 },
340 };
341
342 static QemuOptsList qemu_tpmdev_opts = {
343 .name = "tpmdev",
344 .implied_opt_name = "type",
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
346 .desc = {
347 /* options are defined in the TPM backends */
348 { /* end of list */ }
349 },
350 };
351
352 static QemuOptsList qemu_overcommit_opts = {
353 .name = "overcommit",
354 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
355 .desc = {
356 {
357 .name = "mem-lock",
358 .type = QEMU_OPT_BOOL,
359 },
360 {
361 .name = "cpu-pm",
362 .type = QEMU_OPT_BOOL,
363 },
364 { /* end of list */ }
365 },
366 };
367
368 static QemuOptsList qemu_msg_opts = {
369 .name = "msg",
370 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
371 .desc = {
372 {
373 .name = "timestamp",
374 .type = QEMU_OPT_BOOL,
375 },
376 {
377 .name = "guest-name",
378 .type = QEMU_OPT_BOOL,
379 .help = "Prepends guest name for error messages but only if "
380 "-name guest is set otherwise option is ignored\n",
381 },
382 { /* end of list */ }
383 },
384 };
385
386 static QemuOptsList qemu_name_opts = {
387 .name = "name",
388 .implied_opt_name = "guest",
389 .merge_lists = true,
390 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
391 .desc = {
392 {
393 .name = "guest",
394 .type = QEMU_OPT_STRING,
395 .help = "Sets the name of the guest.\n"
396 "This name will be displayed in the SDL window caption.\n"
397 "The name will also be used for the VNC server",
398 }, {
399 .name = "process",
400 .type = QEMU_OPT_STRING,
401 .help = "Sets the name of the QEMU process, as shown in top etc",
402 }, {
403 .name = "debug-threads",
404 .type = QEMU_OPT_BOOL,
405 .help = "When enabled, name the individual threads; defaults off.\n"
406 "NOTE: The thread names are for debugging and not a\n"
407 "stable API.",
408 },
409 { /* End of list */ }
410 },
411 };
412
413 static QemuOptsList qemu_mem_opts = {
414 .name = "memory",
415 .implied_opt_name = "size",
416 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
417 .merge_lists = true,
418 .desc = {
419 {
420 .name = "size",
421 .type = QEMU_OPT_SIZE,
422 },
423 {
424 .name = "slots",
425 .type = QEMU_OPT_NUMBER,
426 },
427 {
428 .name = "maxmem",
429 .type = QEMU_OPT_SIZE,
430 },
431 { /* end of list */ }
432 },
433 };
434
435 static QemuOptsList qemu_icount_opts = {
436 .name = "icount",
437 .implied_opt_name = "shift",
438 .merge_lists = true,
439 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
440 .desc = {
441 {
442 .name = "shift",
443 .type = QEMU_OPT_STRING,
444 }, {
445 .name = "align",
446 .type = QEMU_OPT_BOOL,
447 }, {
448 .name = "sleep",
449 .type = QEMU_OPT_BOOL,
450 }, {
451 .name = "rr",
452 .type = QEMU_OPT_STRING,
453 }, {
454 .name = "rrfile",
455 .type = QEMU_OPT_STRING,
456 }, {
457 .name = "rrsnapshot",
458 .type = QEMU_OPT_STRING,
459 },
460 { /* end of list */ }
461 },
462 };
463
464 static QemuOptsList qemu_fw_cfg_opts = {
465 .name = "fw_cfg",
466 .implied_opt_name = "name",
467 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
468 .desc = {
469 {
470 .name = "name",
471 .type = QEMU_OPT_STRING,
472 .help = "Sets the fw_cfg name of the blob to be inserted",
473 }, {
474 .name = "file",
475 .type = QEMU_OPT_STRING,
476 .help = "Sets the name of the file from which "
477 "the fw_cfg blob will be loaded",
478 }, {
479 .name = "string",
480 .type = QEMU_OPT_STRING,
481 .help = "Sets content of the blob to be inserted from a string",
482 }, {
483 .name = "gen_id",
484 .type = QEMU_OPT_STRING,
485 .help = "Sets id of the object generating the fw_cfg blob "
486 "to be inserted",
487 },
488 { /* end of list */ }
489 },
490 };
491
492 static QemuOptsList qemu_action_opts = {
493 .name = "action",
494 .merge_lists = true,
495 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
496 .desc = {
497 {
498 .name = "shutdown",
499 .type = QEMU_OPT_STRING,
500 },{
501 .name = "reboot",
502 .type = QEMU_OPT_STRING,
503 },{
504 .name = "panic",
505 .type = QEMU_OPT_STRING,
506 },{
507 .name = "watchdog",
508 .type = QEMU_OPT_STRING,
509 },
510 { /* end of list */ }
511 },
512 };
513
514 const char *qemu_get_vm_name(void)
515 {
516 return qemu_name;
517 }
518
519 static void default_driver_disable(const char *driver)
520 {
521 int i;
522
523 if (!driver) {
524 return;
525 }
526
527 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
528 if (strcmp(default_list[i].driver, driver) != 0)
529 continue;
530 *(default_list[i].flag) = 0;
531 }
532 }
533
534 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
535 {
536 const char *driver = qemu_opt_get(opts, "driver");
537
538 default_driver_disable(driver);
539 return 0;
540 }
541
542 static void default_driver_check_json(void)
543 {
544 DeviceOption *opt;
545
546 QTAILQ_FOREACH(opt, &device_opts, next) {
547 const char *driver = qdict_get_try_str(opt->opts, "driver");
548 default_driver_disable(driver);
549 }
550 }
551
552 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
553 {
554 const char *proc_name;
555
556 if (qemu_opt_get(opts, "debug-threads")) {
557 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
558 }
559 qemu_name = qemu_opt_get(opts, "guest");
560
561 proc_name = qemu_opt_get(opts, "process");
562 if (proc_name) {
563 os_set_proc_name(proc_name);
564 }
565
566 return 0;
567 }
568
569 bool defaults_enabled(void)
570 {
571 return has_defaults;
572 }
573
574 #ifndef _WIN32
575 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
576 {
577 int fd, dupfd, flags;
578 int64_t fdset_id;
579 const char *fd_opaque = NULL;
580 AddfdInfo *fdinfo;
581
582 fd = qemu_opt_get_number(opts, "fd", -1);
583 fdset_id = qemu_opt_get_number(opts, "set", -1);
584 fd_opaque = qemu_opt_get(opts, "opaque");
585
586 if (fd < 0) {
587 error_setg(errp, "fd option is required and must be non-negative");
588 return -1;
589 }
590
591 if (fd <= STDERR_FILENO) {
592 error_setg(errp, "fd cannot be a standard I/O stream");
593 return -1;
594 }
595
596 /*
597 * All fds inherited across exec() necessarily have FD_CLOEXEC
598 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
599 */
600 flags = fcntl(fd, F_GETFD);
601 if (flags == -1 || (flags & FD_CLOEXEC)) {
602 error_setg(errp, "fd is not valid or already in use");
603 return -1;
604 }
605
606 if (fdset_id < 0) {
607 error_setg(errp, "set option is required and must be non-negative");
608 return -1;
609 }
610
611 #ifdef F_DUPFD_CLOEXEC
612 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
613 #else
614 dupfd = dup(fd);
615 if (dupfd != -1) {
616 qemu_set_cloexec(dupfd);
617 }
618 #endif
619 if (dupfd == -1) {
620 error_setg(errp, "error duplicating fd: %s", strerror(errno));
621 return -1;
622 }
623
624 /* add the duplicate fd, and optionally the opaque string, to the fd set */
625 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
626 &error_abort);
627 g_free(fdinfo);
628
629 return 0;
630 }
631
632 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
633 {
634 int fd;
635
636 fd = qemu_opt_get_number(opts, "fd", -1);
637 close(fd);
638
639 return 0;
640 }
641 #endif
642
643 /***********************************************************/
644 /* QEMU Block devices */
645
646 #define HD_OPTS "media=disk"
647 #define CDROM_OPTS "media=cdrom"
648 #define FD_OPTS ""
649 #define PFLASH_OPTS ""
650 #define MTD_OPTS ""
651 #define SD_OPTS ""
652
653 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
654 {
655 BlockInterfaceType *block_default_type = opaque;
656
657 return drive_new(opts, *block_default_type, errp) == NULL;
658 }
659
660 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
661 {
662 if (qemu_opt_get(opts, "snapshot") == NULL) {
663 qemu_opt_set(opts, "snapshot", "on", &error_abort);
664 }
665 return 0;
666 }
667
668 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
669 int index, const char *optstr)
670 {
671 QemuOpts *opts;
672 DriveInfo *dinfo;
673
674 if (!enable || drive_get_by_index(type, index)) {
675 return;
676 }
677
678 opts = drive_add(type, index, NULL, optstr);
679 if (snapshot) {
680 drive_enable_snapshot(NULL, opts, NULL);
681 }
682
683 dinfo = drive_new(opts, type, &error_abort);
684 dinfo->is_default = true;
685
686 }
687
688 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
689 MachineClass *machine_class, int snapshot)
690 {
691 /*
692 * If the currently selected machine wishes to override the
693 * units-per-bus property of its default HBA interface type, do so
694 * now.
695 */
696 if (machine_class->units_per_default_bus) {
697 override_max_devs(machine_class->block_default_type,
698 machine_class->units_per_default_bus);
699 }
700
701 /* open the virtual block devices */
702 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
703 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
704
705 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
706 loc_push_restore(&bdo->loc);
707 qmp_blockdev_add(bdo->bdo, &error_fatal);
708 loc_pop(&bdo->loc);
709 qapi_free_BlockdevOptions(bdo->bdo);
710 g_free(bdo);
711 }
712 if (snapshot) {
713 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
714 NULL, NULL);
715 }
716 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
717 &machine_class->block_default_type, &error_fatal)) {
718 /* We printed help */
719 exit(0);
720 }
721
722 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
723 CDROM_OPTS);
724 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
725 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
726
727 }
728
729 static QemuOptsList qemu_smp_opts = {
730 .name = "smp-opts",
731 .implied_opt_name = "cpus",
732 .merge_lists = true,
733 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
734 .desc = {
735 {
736 .name = "cpus",
737 .type = QEMU_OPT_NUMBER,
738 }, {
739 .name = "sockets",
740 .type = QEMU_OPT_NUMBER,
741 }, {
742 .name = "dies",
743 .type = QEMU_OPT_NUMBER,
744 }, {
745 .name = "clusters",
746 .type = QEMU_OPT_NUMBER,
747 }, {
748 .name = "cores",
749 .type = QEMU_OPT_NUMBER,
750 }, {
751 .name = "threads",
752 .type = QEMU_OPT_NUMBER,
753 }, {
754 .name = "maxcpus",
755 .type = QEMU_OPT_NUMBER,
756 },
757 { /*End of list */ }
758 },
759 };
760
761 static void realtime_init(void)
762 {
763 if (enable_mlock) {
764 if (os_mlock() < 0) {
765 error_report("locking memory failed");
766 exit(1);
767 }
768 }
769 }
770
771
772 static void configure_msg(QemuOpts *opts)
773 {
774 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
775 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
776 }
777
778
779 /***********************************************************/
780 /* USB devices */
781
782 static int usb_device_add(const char *devname)
783 {
784 USBDevice *dev = NULL;
785
786 if (!machine_usb(current_machine)) {
787 return -1;
788 }
789
790 dev = usbdevice_create(devname);
791 if (!dev)
792 return -1;
793
794 return 0;
795 }
796
797 static int usb_parse(const char *cmdline)
798 {
799 int r;
800 r = usb_device_add(cmdline);
801 if (r < 0) {
802 error_report("could not add USB device '%s'", cmdline);
803 }
804 return r;
805 }
806
807 /***********************************************************/
808 /* machine registration */
809
810 static MachineClass *find_machine(const char *name, GSList *machines)
811 {
812 GSList *el;
813
814 for (el = machines; el; el = el->next) {
815 MachineClass *mc = el->data;
816
817 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
818 return mc;
819 }
820 }
821
822 return NULL;
823 }
824
825 static MachineClass *find_default_machine(GSList *machines)
826 {
827 GSList *el;
828 MachineClass *default_machineclass = NULL;
829
830 for (el = machines; el; el = el->next) {
831 MachineClass *mc = el->data;
832
833 if (mc->is_default) {
834 assert(default_machineclass == NULL && "Multiple default machines");
835 default_machineclass = mc;
836 }
837 }
838
839 return default_machineclass;
840 }
841
842 static void version(void)
843 {
844 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
845 QEMU_COPYRIGHT "\n");
846 }
847
848 static void help(int exitcode)
849 {
850 version();
851 printf("usage: %s [options] [disk_image]\n\n"
852 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
853 g_get_prgname());
854
855 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
856 if ((arch_mask) & arch_type) \
857 fputs(opt_help, stdout);
858
859 #define ARCHHEADING(text, arch_mask) \
860 if ((arch_mask) & arch_type) \
861 puts(stringify(text));
862
863 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
864
865 #include "qemu-options.def"
866
867 printf("\nDuring emulation, the following keys are useful:\n"
868 "ctrl-alt-f toggle full screen\n"
869 "ctrl-alt-n switch to virtual console 'n'\n"
870 "ctrl-alt toggle mouse and keyboard grab\n"
871 "\n"
872 "When using -nographic, press 'ctrl-a h' to get some help.\n"
873 "\n"
874 QEMU_HELP_BOTTOM "\n");
875
876 exit(exitcode);
877 }
878
879 #define HAS_ARG 0x0001
880
881 typedef struct QEMUOption {
882 const char *name;
883 int flags;
884 int index;
885 uint32_t arch_mask;
886 } QEMUOption;
887
888 static const QEMUOption qemu_options[] = {
889 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
890
891 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
892 { option, opt_arg, opt_enum, arch_mask },
893 #define DEFHEADING(text)
894 #define ARCHHEADING(text, arch_mask)
895
896 #include "qemu-options.def"
897 { NULL },
898 };
899
900 typedef struct VGAInterfaceInfo {
901 const char *opt_name; /* option name */
902 const char *name; /* human-readable name */
903 /* Class names indicating that support is available.
904 * If no class is specified, the interface is always available */
905 const char *class_names[2];
906 } VGAInterfaceInfo;
907
908 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
909 [VGA_NONE] = {
910 .opt_name = "none",
911 .name = "no graphic card",
912 },
913 [VGA_STD] = {
914 .opt_name = "std",
915 .name = "standard VGA",
916 .class_names = { "VGA", "isa-vga" },
917 },
918 [VGA_CIRRUS] = {
919 .opt_name = "cirrus",
920 .name = "Cirrus VGA",
921 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
922 },
923 [VGA_VMWARE] = {
924 .opt_name = "vmware",
925 .name = "VMWare SVGA",
926 .class_names = { "vmware-svga" },
927 },
928 [VGA_VIRTIO] = {
929 .opt_name = "virtio",
930 .name = "Virtio VGA",
931 .class_names = { "virtio-vga" },
932 },
933 [VGA_QXL] = {
934 .opt_name = "qxl",
935 .name = "QXL VGA",
936 .class_names = { "qxl-vga" },
937 },
938 [VGA_TCX] = {
939 .opt_name = "tcx",
940 .name = "TCX framebuffer",
941 .class_names = { "sun-tcx" },
942 },
943 [VGA_CG3] = {
944 .opt_name = "cg3",
945 .name = "CG3 framebuffer",
946 .class_names = { "cgthree" },
947 },
948 #ifdef CONFIG_XEN_BACKEND
949 [VGA_XENFB] = {
950 .opt_name = "xenfb",
951 .name = "Xen paravirtualized framebuffer",
952 },
953 #endif
954 };
955
956 static bool vga_interface_available(VGAInterfaceType t)
957 {
958 const VGAInterfaceInfo *ti = &vga_interfaces[t];
959
960 assert(t < VGA_TYPE_MAX);
961 return !ti->class_names[0] ||
962 module_object_class_by_name(ti->class_names[0]) ||
963 module_object_class_by_name(ti->class_names[1]);
964 }
965
966 static const char *
967 get_default_vga_model(const MachineClass *machine_class)
968 {
969 if (machine_class->default_display) {
970 return machine_class->default_display;
971 } else if (vga_interface_available(VGA_CIRRUS)) {
972 return "cirrus";
973 } else if (vga_interface_available(VGA_STD)) {
974 return "std";
975 }
976
977 return NULL;
978 }
979
980 static void select_vgahw(const MachineClass *machine_class, const char *p)
981 {
982 const char *opts;
983 int t;
984
985 if (g_str_equal(p, "help")) {
986 const char *def = get_default_vga_model(machine_class);
987
988 for (t = 0; t < VGA_TYPE_MAX; t++) {
989 const VGAInterfaceInfo *ti = &vga_interfaces[t];
990
991 if (vga_interface_available(t) && ti->opt_name) {
992 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
993 g_str_equal(ti->opt_name, def) ? " (default)" : "");
994 }
995 }
996 exit(0);
997 }
998
999 assert(vga_interface_type == VGA_NONE);
1000 for (t = 0; t < VGA_TYPE_MAX; t++) {
1001 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1002 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1003 if (!vga_interface_available(t)) {
1004 error_report("%s not available", ti->name);
1005 exit(1);
1006 }
1007 vga_interface_type = t;
1008 break;
1009 }
1010 }
1011 if (t == VGA_TYPE_MAX) {
1012 invalid_vga:
1013 error_report("unknown vga type: %s", p);
1014 exit(1);
1015 }
1016 while (*opts) {
1017 const char *nextopt;
1018
1019 if (strstart(opts, ",retrace=", &nextopt)) {
1020 opts = nextopt;
1021 if (strstart(opts, "dumb", &nextopt))
1022 vga_retrace_method = VGA_RETRACE_DUMB;
1023 else if (strstart(opts, "precise", &nextopt))
1024 vga_retrace_method = VGA_RETRACE_PRECISE;
1025 else goto invalid_vga;
1026 } else goto invalid_vga;
1027 opts = nextopt;
1028 }
1029 }
1030
1031 static void parse_display_qapi(const char *optarg)
1032 {
1033 DisplayOptions *opts;
1034 Visitor *v;
1035
1036 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1037
1038 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1039 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1040
1041 qapi_free_DisplayOptions(opts);
1042 visit_free(v);
1043 }
1044
1045 DisplayOptions *qmp_query_display_options(Error **errp)
1046 {
1047 return QAPI_CLONE(DisplayOptions, &dpy);
1048 }
1049
1050 static void parse_display(const char *p)
1051 {
1052 const char *opts;
1053
1054 if (is_help_option(p)) {
1055 qemu_display_help();
1056 exit(0);
1057 }
1058
1059 if (strstart(p, "sdl", &opts)) {
1060 /*
1061 * sdl DisplayType needs hand-crafted parser instead of
1062 * parse_display_qapi() due to some options not in
1063 * DisplayOptions, specifically:
1064 * - ctrl_grab + alt_grab
1065 * They can't be moved into the QAPI since they use underscores,
1066 * thus they will get replaced by "grab-mod" in the long term
1067 */
1068 #if defined(CONFIG_SDL)
1069 dpy.type = DISPLAY_TYPE_SDL;
1070 while (*opts) {
1071 const char *nextopt;
1072
1073 if (strstart(opts, ",grab-mod=", &nextopt)) {
1074 opts = nextopt;
1075 if (strstart(opts, "lshift-lctrl-lalt", &nextopt)) {
1076 alt_grab = 1;
1077 } else if (strstart(opts, "rctrl", &nextopt)) {
1078 ctrl_grab = 1;
1079 } else {
1080 goto invalid_sdl_args;
1081 }
1082 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1083 opts = nextopt;
1084 if (strstart(opts, "on", &nextopt)) {
1085 alt_grab = 1;
1086 } else if (strstart(opts, "off", &nextopt)) {
1087 alt_grab = 0;
1088 } else {
1089 goto invalid_sdl_args;
1090 }
1091 warn_report("alt_grab is deprecated, use grab-mod instead.");
1092 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1093 opts = nextopt;
1094 if (strstart(opts, "on", &nextopt)) {
1095 ctrl_grab = 1;
1096 } else if (strstart(opts, "off", &nextopt)) {
1097 ctrl_grab = 0;
1098 } else {
1099 goto invalid_sdl_args;
1100 }
1101 warn_report("ctrl_grab is deprecated, use grab-mod instead.");
1102 } else if (strstart(opts, ",window_close=", &nextopt) ||
1103 strstart(opts, ",window-close=", &nextopt)) {
1104 if (strstart(opts, ",window_close=", NULL)) {
1105 warn_report("window_close with an underscore is deprecated,"
1106 " please use window-close instead.");
1107 }
1108 opts = nextopt;
1109 dpy.has_window_close = true;
1110 if (strstart(opts, "on", &nextopt)) {
1111 dpy.window_close = true;
1112 } else if (strstart(opts, "off", &nextopt)) {
1113 dpy.window_close = false;
1114 } else {
1115 goto invalid_sdl_args;
1116 }
1117 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1118 opts = nextopt;
1119 dpy.has_show_cursor = true;
1120 if (strstart(opts, "on", &nextopt)) {
1121 dpy.show_cursor = true;
1122 } else if (strstart(opts, "off", &nextopt)) {
1123 dpy.show_cursor = false;
1124 } else {
1125 goto invalid_sdl_args;
1126 }
1127 } else if (strstart(opts, ",gl=", &nextopt)) {
1128 opts = nextopt;
1129 dpy.has_gl = true;
1130 if (strstart(opts, "on", &nextopt)) {
1131 dpy.gl = DISPLAYGL_MODE_ON;
1132 } else if (strstart(opts, "core", &nextopt)) {
1133 dpy.gl = DISPLAYGL_MODE_CORE;
1134 } else if (strstart(opts, "es", &nextopt)) {
1135 dpy.gl = DISPLAYGL_MODE_ES;
1136 } else if (strstart(opts, "off", &nextopt)) {
1137 dpy.gl = DISPLAYGL_MODE_OFF;
1138 } else {
1139 goto invalid_sdl_args;
1140 }
1141 } else {
1142 invalid_sdl_args:
1143 error_report("invalid SDL option string");
1144 exit(1);
1145 }
1146 opts = nextopt;
1147 }
1148 #else
1149 error_report("SDL display supported is not available in this binary");
1150 exit(1);
1151 #endif
1152 } else if (strstart(p, "vnc", &opts)) {
1153 /*
1154 * vnc isn't a (local) DisplayType but a protocol for remote
1155 * display access.
1156 */
1157 if (*opts == '=') {
1158 vnc_parse(opts + 1);
1159 } else {
1160 error_report("VNC requires a display argument vnc=<display>");
1161 exit(1);
1162 }
1163 } else {
1164 parse_display_qapi(p);
1165 }
1166 }
1167
1168 static void parse_cxl_fixed_memory_window(const char *optarg)
1169 {
1170 CXLFMWOptionQueueEntry *cfmws_entry;
1171 Visitor *v;
1172
1173 v = qobject_input_visitor_new_str(optarg, "cxl-fixed-memory-window",
1174 &error_fatal);
1175 cfmws_entry = g_new(CXLFMWOptionQueueEntry, 1);
1176 visit_type_CXLFixedMemoryWindowOptions(v, NULL, &cfmws_entry->opts,
1177 &error_fatal);
1178 if (!cfmws_entry->opts) {
1179 exit(1);
1180 }
1181 visit_free(v);
1182 loc_save(&cfmws_entry->loc);
1183 QSIMPLEQ_INSERT_TAIL(&CXLFMW_opts, cfmws_entry, entry);
1184 }
1185
1186 static inline bool nonempty_str(const char *str)
1187 {
1188 return str && *str;
1189 }
1190
1191 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1192 {
1193 gchar *buf;
1194 size_t size;
1195 const char *name, *file, *str, *gen_id;
1196 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1197
1198 if (fw_cfg == NULL) {
1199 error_setg(errp, "fw_cfg device not available");
1200 return -1;
1201 }
1202 name = qemu_opt_get(opts, "name");
1203 file = qemu_opt_get(opts, "file");
1204 str = qemu_opt_get(opts, "string");
1205 gen_id = qemu_opt_get(opts, "gen_id");
1206
1207 /* we need the name, and exactly one of: file, content string, gen_id */
1208 if (!nonempty_str(name) ||
1209 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1210 error_setg(errp, "name, plus exactly one of file,"
1211 " string and gen_id, are needed");
1212 return -1;
1213 }
1214 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1215 error_setg(errp, "name too long (max. %d char)",
1216 FW_CFG_MAX_FILE_PATH - 1);
1217 return -1;
1218 }
1219 if (nonempty_str(gen_id)) {
1220 /*
1221 * In this particular case where the content is populated
1222 * internally, the "etc/" namespace protection is relaxed,
1223 * so do not emit a warning.
1224 */
1225 } else if (strncmp(name, "opt/", 4) != 0) {
1226 warn_report("externally provided fw_cfg item names "
1227 "should be prefixed with \"opt/\"");
1228 }
1229 if (nonempty_str(str)) {
1230 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1231 buf = g_memdup(str, size);
1232 } else if (nonempty_str(gen_id)) {
1233 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1234 return -1;
1235 }
1236 return 0;
1237 } else {
1238 GError *err = NULL;
1239 if (!g_file_get_contents(file, &buf, &size, &err)) {
1240 error_setg(errp, "can't load %s: %s", file, err->message);
1241 g_error_free(err);
1242 return -1;
1243 }
1244 }
1245 /* For legacy, keep user files in a specific global order. */
1246 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1247 fw_cfg_add_file(fw_cfg, name, buf, size);
1248 fw_cfg_reset_order_override(fw_cfg);
1249 return 0;
1250 }
1251
1252 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1253 {
1254 return qdev_device_help(opts);
1255 }
1256
1257 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1258 {
1259 DeviceState *dev;
1260
1261 dev = qdev_device_add(opts, errp);
1262 if (!dev && *errp) {
1263 error_report_err(*errp);
1264 return -1;
1265 } else if (dev) {
1266 object_unref(OBJECT(dev));
1267 }
1268 return 0;
1269 }
1270
1271 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1272 {
1273 Error *local_err = NULL;
1274
1275 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1276 if (local_err) {
1277 error_propagate(errp, local_err);
1278 return -1;
1279 }
1280 exit(0);
1281 }
1282 return 0;
1283 }
1284
1285 #ifdef CONFIG_VIRTFS
1286 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1287 {
1288 return qemu_fsdev_add(opts, errp);
1289 }
1290 #endif
1291
1292 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1293 {
1294 return monitor_init_opts(opts, errp);
1295 }
1296
1297 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
1298 {
1299 static int monitor_device_index = 0;
1300 QemuOpts *opts;
1301 const char *p;
1302 char label[32];
1303
1304 if (strstart(optarg, "chardev:", &p)) {
1305 snprintf(label, sizeof(label), "%s", p);
1306 } else {
1307 snprintf(label, sizeof(label), "compat_monitor%d",
1308 monitor_device_index);
1309 opts = qemu_chr_parse_compat(label, optarg, true);
1310 if (!opts) {
1311 error_report("parse error: %s", optarg);
1312 exit(1);
1313 }
1314 }
1315
1316 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1317 qemu_opt_set(opts, "mode", mode, &error_abort);
1318 qemu_opt_set(opts, "chardev", label, &error_abort);
1319 if (!strcmp(mode, "control")) {
1320 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1321 } else {
1322 assert(pretty == false);
1323 }
1324 monitor_device_index++;
1325 }
1326
1327 struct device_config {
1328 enum {
1329 DEV_USB, /* -usbdevice */
1330 DEV_SERIAL, /* -serial */
1331 DEV_PARALLEL, /* -parallel */
1332 DEV_DEBUGCON, /* -debugcon */
1333 DEV_GDB, /* -gdb, -s */
1334 DEV_SCLP, /* s390 sclp */
1335 } type;
1336 const char *cmdline;
1337 Location loc;
1338 QTAILQ_ENTRY(device_config) next;
1339 };
1340
1341 static QTAILQ_HEAD(, device_config) device_configs =
1342 QTAILQ_HEAD_INITIALIZER(device_configs);
1343
1344 static void add_device_config(int type, const char *cmdline)
1345 {
1346 struct device_config *conf;
1347
1348 conf = g_malloc0(sizeof(*conf));
1349 conf->type = type;
1350 conf->cmdline = cmdline;
1351 loc_save(&conf->loc);
1352 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1353 }
1354
1355 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1356 {
1357 struct device_config *conf;
1358 int rc;
1359
1360 QTAILQ_FOREACH(conf, &device_configs, next) {
1361 if (conf->type != type)
1362 continue;
1363 loc_push_restore(&conf->loc);
1364 rc = func(conf->cmdline);
1365 loc_pop(&conf->loc);
1366 if (rc) {
1367 return rc;
1368 }
1369 }
1370 return 0;
1371 }
1372
1373 static void qemu_disable_default_devices(void)
1374 {
1375 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1376
1377 default_driver_check_json();
1378 qemu_opts_foreach(qemu_find_opts("device"),
1379 default_driver_check, NULL, NULL);
1380 qemu_opts_foreach(qemu_find_opts("global"),
1381 default_driver_check, NULL, NULL);
1382
1383 if (!vga_model && !default_vga) {
1384 vga_interface_type = VGA_DEVICE;
1385 vga_interface_created = true;
1386 }
1387 if (!has_defaults || machine_class->no_serial) {
1388 default_serial = 0;
1389 }
1390 if (!has_defaults || machine_class->no_parallel) {
1391 default_parallel = 0;
1392 }
1393 if (!has_defaults || machine_class->no_floppy) {
1394 default_floppy = 0;
1395 }
1396 if (!has_defaults || machine_class->no_cdrom) {
1397 default_cdrom = 0;
1398 }
1399 if (!has_defaults || machine_class->no_sdcard) {
1400 default_sdcard = 0;
1401 }
1402 if (!has_defaults) {
1403 default_monitor = 0;
1404 default_net = 0;
1405 default_vga = 0;
1406 }
1407 }
1408
1409 static void qemu_create_default_devices(void)
1410 {
1411 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1412
1413 if (is_daemonized()) {
1414 /* According to documentation and historically, -nographic redirects
1415 * serial port, parallel port and monitor to stdio, which does not work
1416 * with -daemonize. We can redirect these to null instead, but since
1417 * -nographic is legacy, let's just error out.
1418 * We disallow -nographic only if all other ports are not redirected
1419 * explicitly, to not break existing legacy setups which uses
1420 * -nographic _and_ redirects all ports explicitly - this is valid
1421 * usage, -nographic is just a no-op in this case.
1422 */
1423 if (nographic
1424 && (default_parallel || default_serial || default_monitor)) {
1425 error_report("-nographic cannot be used with -daemonize");
1426 exit(1);
1427 }
1428 }
1429
1430 if (nographic) {
1431 if (default_parallel)
1432 add_device_config(DEV_PARALLEL, "null");
1433 if (default_serial && default_monitor) {
1434 add_device_config(DEV_SERIAL, "mon:stdio");
1435 } else {
1436 if (default_serial)
1437 add_device_config(DEV_SERIAL, "stdio");
1438 if (default_monitor)
1439 monitor_parse("stdio", "readline", false);
1440 }
1441 } else {
1442 if (default_serial)
1443 add_device_config(DEV_SERIAL, "vc:80Cx24C");
1444 if (default_parallel)
1445 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
1446 if (default_monitor)
1447 monitor_parse("vc:80Cx24C", "readline", false);
1448 }
1449
1450 if (default_net) {
1451 QemuOptsList *net = qemu_find_opts("net");
1452 qemu_opts_parse(net, "nic", true, &error_abort);
1453 #ifdef CONFIG_SLIRP
1454 qemu_opts_parse(net, "user", true, &error_abort);
1455 #endif
1456 }
1457
1458 #if defined(CONFIG_VNC)
1459 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
1460 display_remote++;
1461 }
1462 #endif
1463 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1464 if (!qemu_display_find_default(&dpy)) {
1465 dpy.type = DISPLAY_TYPE_NONE;
1466 #if defined(CONFIG_VNC)
1467 vnc_parse("localhost:0,to=99,id=default");
1468 #endif
1469 }
1470 }
1471 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1472 dpy.type = DISPLAY_TYPE_NONE;
1473 }
1474
1475 /* If no default VGA is requested, the default is "none". */
1476 if (default_vga) {
1477 vga_model = get_default_vga_model(machine_class);
1478 }
1479 if (vga_model) {
1480 select_vgahw(machine_class, vga_model);
1481 }
1482 }
1483
1484 static int serial_parse(const char *devname)
1485 {
1486 int index = num_serial_hds;
1487 char label[32];
1488
1489 if (strcmp(devname, "none") == 0)
1490 return 0;
1491 snprintf(label, sizeof(label), "serial%d", index);
1492 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1493
1494 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1495 if (!serial_hds[index]) {
1496 error_report("could not connect serial device"
1497 " to character backend '%s'", devname);
1498 return -1;
1499 }
1500 num_serial_hds++;
1501 return 0;
1502 }
1503
1504 Chardev *serial_hd(int i)
1505 {
1506 assert(i >= 0);
1507 if (i < num_serial_hds) {
1508 return serial_hds[i];
1509 }
1510 return NULL;
1511 }
1512
1513 static int parallel_parse(const char *devname)
1514 {
1515 static int index = 0;
1516 char label[32];
1517
1518 if (strcmp(devname, "none") == 0)
1519 return 0;
1520 if (index == MAX_PARALLEL_PORTS) {
1521 error_report("too many parallel ports");
1522 exit(1);
1523 }
1524 snprintf(label, sizeof(label), "parallel%d", index);
1525 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1526 if (!parallel_hds[index]) {
1527 error_report("could not connect parallel device"
1528 " to character backend '%s'", devname);
1529 return -1;
1530 }
1531 index++;
1532 return 0;
1533 }
1534
1535 static int debugcon_parse(const char *devname)
1536 {
1537 QemuOpts *opts;
1538
1539 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1540 error_report("invalid character backend '%s'", devname);
1541 exit(1);
1542 }
1543 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1544 if (!opts) {
1545 error_report("already have a debugcon device");
1546 exit(1);
1547 }
1548 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1549 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1550 return 0;
1551 }
1552
1553 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1554 {
1555 const MachineClass *mc1 = a, *mc2 = b;
1556 int res;
1557
1558 if (mc1->family == NULL) {
1559 if (mc2->family == NULL) {
1560 /* Compare standalone machine types against each other; they sort
1561 * in increasing order.
1562 */
1563 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1564 object_class_get_name(OBJECT_CLASS(mc2)));
1565 }
1566
1567 /* Standalone machine types sort after families. */
1568 return 1;
1569 }
1570
1571 if (mc2->family == NULL) {
1572 /* Families sort before standalone machine types. */
1573 return -1;
1574 }
1575
1576 /* Families sort between each other alphabetically increasingly. */
1577 res = strcmp(mc1->family, mc2->family);
1578 if (res != 0) {
1579 return res;
1580 }
1581
1582 /* Within the same family, machine types sort in decreasing order. */
1583 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1584 object_class_get_name(OBJECT_CLASS(mc1)));
1585 }
1586
1587 static void machine_help_func(const QDict *qdict)
1588 {
1589 GSList *machines, *el;
1590 const char *type = qdict_get_try_str(qdict, "type");
1591
1592 machines = object_class_get_list(TYPE_MACHINE, false);
1593 if (type) {
1594 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1595 if (machine_class) {
1596 type_print_class_properties(object_class_get_name(machine_class));
1597 return;
1598 }
1599 }
1600
1601 printf("Supported machines are:\n");
1602 machines = g_slist_sort(machines, machine_class_cmp);
1603 for (el = machines; el; el = el->next) {
1604 MachineClass *mc = el->data;
1605 if (mc->alias) {
1606 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1607 }
1608 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1609 mc->is_default ? " (default)" : "",
1610 mc->deprecation_reason ? " (deprecated)" : "");
1611 }
1612 }
1613
1614 static void
1615 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1616 {
1617 QDict *opts;
1618
1619 opts = qdict_new();
1620 /* Preserve the caller's reference to prop. */
1621 qobject_ref(prop);
1622 qdict_put(opts, propname, prop);
1623 keyval_merge(machine_opts_dict, opts, errp);
1624 qobject_unref(opts);
1625 }
1626
1627 static void
1628 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1629 const char *arg)
1630 {
1631 QDict *prop = NULL;
1632 bool help = false;
1633
1634 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1635 if (help) {
1636 qemu_opts_print_help(opts_list, true);
1637 exit(0);
1638 }
1639 machine_merge_property(propname, prop, &error_fatal);
1640 qobject_unref(prop);
1641 }
1642
1643 static const char *pid_file;
1644 static Notifier qemu_unlink_pidfile_notifier;
1645
1646 static void qemu_unlink_pidfile(Notifier *n, void *data)
1647 {
1648 if (pid_file) {
1649 unlink(pid_file);
1650 }
1651 }
1652
1653 static const QEMUOption *lookup_opt(int argc, char **argv,
1654 const char **poptarg, int *poptind)
1655 {
1656 const QEMUOption *popt;
1657 int optind = *poptind;
1658 char *r = argv[optind];
1659 const char *optarg;
1660
1661 loc_set_cmdline(argv, optind, 1);
1662 optind++;
1663 /* Treat --foo the same as -foo. */
1664 if (r[1] == '-')
1665 r++;
1666 popt = qemu_options;
1667 for(;;) {
1668 if (!popt->name) {
1669 error_report("invalid option");
1670 exit(1);
1671 }
1672 if (!strcmp(popt->name, r + 1))
1673 break;
1674 popt++;
1675 }
1676 if (popt->flags & HAS_ARG) {
1677 if (optind >= argc) {
1678 error_report("requires an argument");
1679 exit(1);
1680 }
1681 optarg = argv[optind++];
1682 loc_set_cmdline(argv, optind - 2, 2);
1683 } else {
1684 optarg = NULL;
1685 }
1686
1687 *poptarg = optarg;
1688 *poptind = optind;
1689
1690 return popt;
1691 }
1692
1693 static MachineClass *select_machine(QDict *qdict, Error **errp)
1694 {
1695 const char *optarg = qdict_get_try_str(qdict, "type");
1696 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1697 MachineClass *machine_class;
1698 Error *local_err = NULL;
1699
1700 if (optarg) {
1701 machine_class = find_machine(optarg, machines);
1702 qdict_del(qdict, "type");
1703 if (!machine_class) {
1704 error_setg(&local_err, "unsupported machine type");
1705 }
1706 } else {
1707 machine_class = find_default_machine(machines);
1708 if (!machine_class) {
1709 error_setg(&local_err, "No machine specified, and there is no default");
1710 }
1711 }
1712
1713 g_slist_free(machines);
1714 if (local_err) {
1715 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1716 error_propagate(errp, local_err);
1717 }
1718 return machine_class;
1719 }
1720
1721 static int object_parse_property_opt(Object *obj,
1722 const char *name, const char *value,
1723 const char *skip, Error **errp)
1724 {
1725 if (g_str_equal(name, skip)) {
1726 return 0;
1727 }
1728
1729 if (!object_property_parse(obj, name, value, errp)) {
1730 return -1;
1731 }
1732
1733 return 0;
1734 }
1735
1736 /* *Non*recursively replace underscores with dashes in QDict keys. */
1737 static void keyval_dashify(QDict *qdict, Error **errp)
1738 {
1739 const QDictEntry *ent, *next;
1740 char *p;
1741
1742 for (ent = qdict_first(qdict); ent; ent = next) {
1743 g_autofree char *new_key = NULL;
1744
1745 next = qdict_next(qdict, ent);
1746 if (!strchr(ent->key, '_')) {
1747 continue;
1748 }
1749 new_key = g_strdup(ent->key);
1750 for (p = new_key; *p; p++) {
1751 if (*p == '_') {
1752 *p = '-';
1753 }
1754 }
1755 if (qdict_haskey(qdict, new_key)) {
1756 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1757 return;
1758 }
1759 qobject_ref(ent->value);
1760 qdict_put_obj(qdict, new_key, ent->value);
1761 qdict_del(qdict, ent->key);
1762 }
1763 }
1764
1765 static void qemu_apply_legacy_machine_options(QDict *qdict)
1766 {
1767 const char *value;
1768 QObject *prop;
1769
1770 keyval_dashify(qdict, &error_fatal);
1771
1772 /* Legacy options do not correspond to MachineState properties. */
1773 value = qdict_get_try_str(qdict, "accel");
1774 if (value) {
1775 accelerators = g_strdup(value);
1776 qdict_del(qdict, "accel");
1777 }
1778
1779 value = qdict_get_try_str(qdict, "igd-passthru");
1780 if (value) {
1781 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1782 false);
1783 qdict_del(qdict, "igd-passthru");
1784 }
1785
1786 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1787 if (value) {
1788 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1789 false);
1790 qdict_del(qdict, "kvm-shadow-mem");
1791 }
1792
1793 value = qdict_get_try_str(qdict, "kernel-irqchip");
1794 if (value) {
1795 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1796 false);
1797 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1798 false);
1799 qdict_del(qdict, "kernel-irqchip");
1800 }
1801
1802 value = qdict_get_try_str(qdict, "memory-backend");
1803 if (value) {
1804 if (mem_path) {
1805 error_report("'-mem-path' can't be used together with"
1806 "'-machine memory-backend'");
1807 exit(EXIT_FAILURE);
1808 }
1809
1810 /* Resolved later. */
1811 ram_memdev_id = g_strdup(value);
1812 qdict_del(qdict, "memory-backend");
1813 }
1814
1815 prop = qdict_get(qdict, "memory");
1816 if (prop) {
1817 have_custom_ram_size =
1818 qobject_type(prop) == QTYPE_QDICT &&
1819 qdict_haskey(qobject_to(QDict, prop), "size");
1820 }
1821 }
1822
1823 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1824 {
1825 ObjectOption *opt, *next;
1826
1827 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1828 const char *type = ObjectType_str(opt->opts->qom_type);
1829 if (type_opt_predicate(type)) {
1830 user_creatable_add_qapi(opt->opts, &error_fatal);
1831 qapi_free_ObjectOptions(opt->opts);
1832 QTAILQ_REMOVE(&object_opts, opt, next);
1833 g_free(opt);
1834 }
1835 }
1836 }
1837
1838 static void object_option_add_visitor(Visitor *v)
1839 {
1840 ObjectOption *opt = g_new0(ObjectOption, 1);
1841 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1842 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1843 }
1844
1845 static void object_option_parse(const char *optarg)
1846 {
1847 QemuOpts *opts;
1848 const char *type;
1849 Visitor *v;
1850
1851 if (optarg[0] == '{') {
1852 QObject *obj = qobject_from_json(optarg, &error_fatal);
1853
1854 v = qobject_input_visitor_new(obj);
1855 qobject_unref(obj);
1856 } else {
1857 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1858 optarg, true);
1859 if (!opts) {
1860 exit(1);
1861 }
1862
1863 type = qemu_opt_get(opts, "qom-type");
1864 if (!type) {
1865 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1866 }
1867 if (user_creatable_print_help(type, opts)) {
1868 exit(0);
1869 }
1870
1871 v = opts_visitor_new(opts);
1872 }
1873
1874 object_option_add_visitor(v);
1875 visit_free(v);
1876 }
1877
1878 /*
1879 * Initial object creation happens before all other
1880 * QEMU data types are created. The majority of objects
1881 * can be created at this point. The rng-egd object
1882 * cannot be created here, as it depends on the chardev
1883 * already existing.
1884 */
1885 static bool object_create_early(const char *type)
1886 {
1887 /*
1888 * Objects should not be made "delayed" without a reason. If you
1889 * add one, state the reason in a comment!
1890 */
1891
1892 /* Reason: property "chardev" */
1893 if (g_str_equal(type, "rng-egd") ||
1894 g_str_equal(type, "qtest")) {
1895 return false;
1896 }
1897
1898 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1899 /* Reason: cryptodev-vhost-user property "chardev" */
1900 if (g_str_equal(type, "cryptodev-vhost-user")) {
1901 return false;
1902 }
1903 #endif
1904
1905 /* Reason: vhost-user-blk-server property "node-name" */
1906 if (g_str_equal(type, "vhost-user-blk-server")) {
1907 return false;
1908 }
1909 /*
1910 * Reason: filter-* property "netdev" etc.
1911 */
1912 if (g_str_equal(type, "filter-buffer") ||
1913 g_str_equal(type, "filter-dump") ||
1914 g_str_equal(type, "filter-mirror") ||
1915 g_str_equal(type, "filter-redirector") ||
1916 g_str_equal(type, "colo-compare") ||
1917 g_str_equal(type, "filter-rewriter") ||
1918 g_str_equal(type, "filter-replay")) {
1919 return false;
1920 }
1921
1922 /*
1923 * Allocation of large amounts of memory may delay
1924 * chardev initialization for too long, and trigger timeouts
1925 * on software that waits for a monitor socket to be created
1926 * (e.g. libvirt).
1927 */
1928 if (g_str_has_prefix(type, "memory-backend-")) {
1929 return false;
1930 }
1931
1932 return true;
1933 }
1934
1935 static void qemu_apply_machine_options(QDict *qdict)
1936 {
1937 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1938
1939 if (semihosting_enabled() && !semihosting_get_argc()) {
1940 /* fall back to the -kernel/-append */
1941 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1942 }
1943
1944 if (current_machine->smp.cpus > 1) {
1945 Error *blocker = NULL;
1946 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1947 replay_add_blocker(blocker);
1948 }
1949 }
1950
1951 static void qemu_create_early_backends(void)
1952 {
1953 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1954 #if defined(CONFIG_SDL)
1955 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1956 #else
1957 const bool use_sdl = false;
1958 #endif
1959 #if defined(CONFIG_GTK)
1960 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1961 #else
1962 const bool use_gtk = false;
1963 #endif
1964
1965 if ((alt_grab || ctrl_grab) && !use_sdl) {
1966 error_report("-alt-grab and -ctrl-grab are only valid "
1967 "for SDL, ignoring option");
1968 }
1969 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1970 error_report("window-close is only valid for GTK and SDL, "
1971 "ignoring option");
1972 }
1973
1974 qemu_display_early_init(&dpy);
1975 qemu_console_early_init();
1976
1977 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1978 #if defined(CONFIG_OPENGL)
1979 error_report("OpenGL is not supported by the display");
1980 #else
1981 error_report("OpenGL support is disabled");
1982 #endif
1983 exit(1);
1984 }
1985
1986 object_option_foreach_add(object_create_early);
1987
1988 /* spice needs the timers to be initialized by this point */
1989 /* spice must initialize before audio as it changes the default audiodev */
1990 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1991 qemu_spice.init();
1992
1993 qemu_opts_foreach(qemu_find_opts("chardev"),
1994 chardev_init_func, NULL, &error_fatal);
1995
1996 #ifdef CONFIG_VIRTFS
1997 qemu_opts_foreach(qemu_find_opts("fsdev"),
1998 fsdev_init_func, NULL, &error_fatal);
1999 #endif
2000
2001 /*
2002 * Note: we need to create audio and block backends before
2003 * setting machine properties, so they can be referred to.
2004 */
2005 configure_blockdev(&bdo_queue, machine_class, snapshot);
2006 audio_init_audiodevs();
2007 }
2008
2009
2010 /*
2011 * The remainder of object creation happens after the
2012 * creation of chardev, fsdev, net clients and device data types.
2013 */
2014 static bool object_create_late(const char *type)
2015 {
2016 return !object_create_early(type);
2017 }
2018
2019 static void qemu_create_late_backends(void)
2020 {
2021 if (qtest_chrdev) {
2022 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
2023 }
2024
2025 net_init_clients(&error_fatal);
2026
2027 object_option_foreach_add(object_create_late);
2028
2029 if (tpm_init() < 0) {
2030 exit(1);
2031 }
2032
2033 qemu_opts_foreach(qemu_find_opts("mon"),
2034 mon_init_func, NULL, &error_fatal);
2035
2036 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2037 exit(1);
2038 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2039 exit(1);
2040 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2041 exit(1);
2042
2043 /* now chardevs have been created we may have semihosting to connect */
2044 qemu_semihosting_connect_chardevs();
2045 qemu_semihosting_console_init();
2046 }
2047
2048 static void cxl_set_opts(void)
2049 {
2050 while (!QSIMPLEQ_EMPTY(&CXLFMW_opts)) {
2051 CXLFMWOptionQueueEntry *cfmws_entry = QSIMPLEQ_FIRST(&CXLFMW_opts);
2052
2053 loc_restore(&cfmws_entry->loc);
2054 QSIMPLEQ_REMOVE_HEAD(&CXLFMW_opts, entry);
2055 cxl_fixed_memory_window_config(current_machine, cfmws_entry->opts,
2056 &error_fatal);
2057 qapi_free_CXLFixedMemoryWindowOptions(cfmws_entry->opts);
2058 g_free(cfmws_entry);
2059 }
2060 }
2061
2062 static void qemu_resolve_machine_memdev(void)
2063 {
2064 if (ram_memdev_id) {
2065 Object *backend;
2066 ram_addr_t backend_size;
2067
2068 backend = object_resolve_path_type(ram_memdev_id,
2069 TYPE_MEMORY_BACKEND, NULL);
2070 if (!backend) {
2071 error_report("Memory backend '%s' not found", ram_memdev_id);
2072 exit(EXIT_FAILURE);
2073 }
2074 if (!have_custom_ram_size) {
2075 backend_size = object_property_get_uint(backend, "size", &error_abort);
2076 current_machine->ram_size = backend_size;
2077 }
2078 object_property_set_link(OBJECT(current_machine),
2079 "memory-backend", backend, &error_fatal);
2080 }
2081 }
2082
2083 static void parse_memory_options(const char *arg)
2084 {
2085 QemuOpts *opts;
2086 QDict *dict, *prop;
2087 const char *mem_str;
2088
2089 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), arg, true);
2090 if (!opts) {
2091 exit(EXIT_FAILURE);
2092 }
2093
2094 prop = qdict_new();
2095
2096 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2097 mem_str = qemu_opt_get(opts, "size");
2098 if (!*mem_str) {
2099 error_report("missing 'size' option value");
2100 exit(EXIT_FAILURE);
2101 }
2102
2103 /* Fix up legacy suffix-less format */
2104 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2105 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2106 qdict_put_str(prop, "size", mib_str);
2107 } else {
2108 qdict_put_str(prop, "size", mem_str);
2109 }
2110 }
2111
2112 if (qemu_opt_get(opts, "maxmem")) {
2113 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2114 }
2115 if (qemu_opt_get(opts, "slots")) {
2116 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2117 }
2118
2119 dict = qdict_new();
2120 qdict_put(dict, "memory", prop);
2121 keyval_merge(machine_opts_dict, dict, &error_fatal);
2122 qobject_unref(dict);
2123 }
2124
2125 static void qemu_create_machine(QDict *qdict)
2126 {
2127 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2128 object_set_machine_compat_props(machine_class->compat_props);
2129
2130 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2131 object_property_add_child(object_get_root(), "machine",
2132 OBJECT(current_machine));
2133 object_property_add_child(container_get(OBJECT(current_machine),
2134 "/unattached"),
2135 "sysbus", OBJECT(sysbus_get_default()));
2136
2137 if (machine_class->minimum_page_bits) {
2138 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2139 /* This would be a board error: specifying a minimum smaller than
2140 * a target's compile-time fixed setting.
2141 */
2142 g_assert_not_reached();
2143 }
2144 }
2145
2146 cpu_exec_init_all();
2147 page_size_init();
2148
2149 if (machine_class->hw_version) {
2150 qemu_set_hw_version(machine_class->hw_version);
2151 }
2152
2153 /*
2154 * Get the default machine options from the machine if it is not already
2155 * specified either by the configuration file or by the command line.
2156 */
2157 if (machine_class->default_machine_opts) {
2158 QDict *default_opts =
2159 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2160 &error_abort);
2161 qemu_apply_legacy_machine_options(default_opts);
2162 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2163 false, &error_abort);
2164 qobject_unref(default_opts);
2165 }
2166 }
2167
2168 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2169 {
2170 GlobalProperty *g;
2171
2172 g = g_malloc0(sizeof(*g));
2173 g->driver = qemu_opt_get(opts, "driver");
2174 g->property = qemu_opt_get(opts, "property");
2175 g->value = qemu_opt_get(opts, "value");
2176 qdev_prop_register_global(g);
2177 return 0;
2178 }
2179
2180 /*
2181 * Return whether configuration group @group is stored in QemuOpts, or
2182 * recorded as one or more QDicts by qemu_record_config_group.
2183 */
2184 static bool is_qemuopts_group(const char *group)
2185 {
2186 if (g_str_equal(group, "object") ||
2187 g_str_equal(group, "machine") ||
2188 g_str_equal(group, "smp-opts") ||
2189 g_str_equal(group, "boot-opts") ||
2190 g_str_equal(group, "memory")) {
2191 return false;
2192 }
2193 return true;
2194 }
2195
2196 static void qemu_record_config_group(const char *group, QDict *dict,
2197 bool from_json, Error **errp)
2198 {
2199 if (g_str_equal(group, "object")) {
2200 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2201 object_option_add_visitor(v);
2202 visit_free(v);
2203 } else if (g_str_equal(group, "machine")) {
2204 /*
2205 * Cannot merge string-valued and type-safe dictionaries, so JSON
2206 * is not accepted yet for -M.
2207 */
2208 assert(!from_json);
2209 keyval_merge(machine_opts_dict, dict, errp);
2210 } else if (g_str_equal(group, "smp-opts")) {
2211 machine_merge_property("smp", dict, &error_fatal);
2212 } else if (g_str_equal(group, "boot-opts")) {
2213 machine_merge_property("boot", dict, &error_fatal);
2214 } else if (g_str_equal(group, "memory")) {
2215 machine_merge_property("memory", dict, &error_fatal);
2216 } else {
2217 abort();
2218 }
2219 }
2220
2221 /*
2222 * Parse non-QemuOpts config file groups, pass the rest to
2223 * qemu_config_do_parse.
2224 */
2225 static void qemu_parse_config_group(const char *group, QDict *qdict,
2226 void *opaque, Error **errp)
2227 {
2228 QObject *crumpled;
2229 if (is_qemuopts_group(group)) {
2230 qemu_config_do_parse(group, qdict, opaque, errp);
2231 return;
2232 }
2233
2234 crumpled = qdict_crumple(qdict, errp);
2235 if (!crumpled) {
2236 return;
2237 }
2238 switch (qobject_type(crumpled)) {
2239 case QTYPE_QDICT:
2240 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2241 break;
2242 case QTYPE_QLIST:
2243 error_setg(errp, "Lists cannot be at top level of a configuration section");
2244 break;
2245 default:
2246 g_assert_not_reached();
2247 }
2248 qobject_unref(crumpled);
2249 }
2250
2251 static void qemu_read_default_config_file(Error **errp)
2252 {
2253 ERRP_GUARD();
2254 int ret;
2255 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2256
2257 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2258 if (ret < 0) {
2259 if (ret == -ENOENT) {
2260 error_free(*errp);
2261 *errp = NULL;
2262 }
2263 }
2264 }
2265
2266 static void qemu_set_option(const char *str, Error **errp)
2267 {
2268 char group[64], id[64], arg[64];
2269 QemuOptsList *list;
2270 QemuOpts *opts;
2271 int rc, offset;
2272
2273 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2274 if (rc < 3 || str[offset] != '=') {
2275 error_setg(errp, "can't parse: \"%s\"", str);
2276 return;
2277 }
2278
2279 if (!is_qemuopts_group(group)) {
2280 error_setg(errp, "-set is not supported with %s", group);
2281 } else {
2282 list = qemu_find_opts_err(group, errp);
2283 if (list) {
2284 opts = qemu_opts_find(list, id);
2285 if (!opts) {
2286 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2287 return;
2288 }
2289 qemu_opt_set(opts, arg, str + offset + 1, errp);
2290 }
2291 }
2292 }
2293
2294 static void user_register_global_props(void)
2295 {
2296 qemu_opts_foreach(qemu_find_opts("global"),
2297 global_init_func, NULL, NULL);
2298 }
2299
2300 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2301 {
2302 icount_configure(opts, errp);
2303 return 0;
2304 }
2305
2306 static int accelerator_set_property(void *opaque,
2307 const char *name, const char *value,
2308 Error **errp)
2309 {
2310 return object_parse_property_opt(opaque, name, value, "accel", errp);
2311 }
2312
2313 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2314 {
2315 bool *p_init_failed = opaque;
2316 const char *acc = qemu_opt_get(opts, "accel");
2317 AccelClass *ac = accel_find(acc);
2318 AccelState *accel;
2319 int ret;
2320 bool qtest_with_kvm;
2321
2322 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2323
2324 if (!ac) {
2325 *p_init_failed = true;
2326 if (!qtest_with_kvm) {
2327 error_report("invalid accelerator %s", acc);
2328 }
2329 return 0;
2330 }
2331 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2332 object_apply_compat_props(OBJECT(accel));
2333 qemu_opt_foreach(opts, accelerator_set_property,
2334 accel,
2335 &error_fatal);
2336
2337 ret = accel_init_machine(accel, current_machine);
2338 if (ret < 0) {
2339 *p_init_failed = true;
2340 if (!qtest_with_kvm || ret != -ENOENT) {
2341 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2342 }
2343 return 0;
2344 }
2345
2346 return 1;
2347 }
2348
2349 static void configure_accelerators(const char *progname)
2350 {
2351 bool init_failed = false;
2352
2353 qemu_opts_foreach(qemu_find_opts("icount"),
2354 do_configure_icount, NULL, &error_fatal);
2355
2356 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2357 char **accel_list, **tmp;
2358
2359 if (accelerators == NULL) {
2360 /* Select the default accelerator */
2361 bool have_tcg = accel_find("tcg");
2362 bool have_kvm = accel_find("kvm");
2363
2364 if (have_tcg && have_kvm) {
2365 if (g_str_has_suffix(progname, "kvm")) {
2366 /* If the program name ends with "kvm", we prefer KVM */
2367 accelerators = "kvm:tcg";
2368 } else {
2369 accelerators = "tcg:kvm";
2370 }
2371 } else if (have_kvm) {
2372 accelerators = "kvm";
2373 } else if (have_tcg) {
2374 accelerators = "tcg";
2375 } else {
2376 error_report("No accelerator selected and"
2377 " no default accelerator available");
2378 exit(1);
2379 }
2380 }
2381 accel_list = g_strsplit(accelerators, ":", 0);
2382
2383 for (tmp = accel_list; *tmp; tmp++) {
2384 /*
2385 * Filter invalid accelerators here, to prevent obscenities
2386 * such as "-machine accel=tcg,,thread=single".
2387 */
2388 if (accel_find(*tmp)) {
2389 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2390 } else {
2391 init_failed = true;
2392 error_report("invalid accelerator %s", *tmp);
2393 }
2394 }
2395 g_strfreev(accel_list);
2396 } else {
2397 if (accelerators != NULL) {
2398 error_report("The -accel and \"-machine accel=\" options are incompatible");
2399 exit(1);
2400 }
2401 }
2402
2403 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2404 do_configure_accelerator, &init_failed, &error_fatal)) {
2405 if (!init_failed) {
2406 error_report("no accelerator found");
2407 }
2408 exit(1);
2409 }
2410
2411 if (init_failed && !qtest_chrdev) {
2412 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2413 error_report("falling back to %s", ac->name);
2414 }
2415
2416 if (icount_enabled() && !tcg_enabled()) {
2417 error_report("-icount is not allowed with hardware virtualization");
2418 exit(1);
2419 }
2420 }
2421
2422 static void qemu_validate_options(const QDict *machine_opts)
2423 {
2424 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2425 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2426 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2427
2428 if (kernel_filename == NULL) {
2429 if (kernel_cmdline != NULL) {
2430 error_report("-append only allowed with -kernel option");
2431 exit(1);
2432 }
2433
2434 if (initrd_filename != NULL) {
2435 error_report("-initrd only allowed with -kernel option");
2436 exit(1);
2437 }
2438 }
2439
2440 if (loadvm && preconfig_requested) {
2441 error_report("'preconfig' and 'loadvm' options are "
2442 "mutually exclusive");
2443 exit(EXIT_FAILURE);
2444 }
2445 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2446 error_report("'preconfig' supports '-incoming defer' only");
2447 exit(EXIT_FAILURE);
2448 }
2449
2450 #ifdef CONFIG_CURSES
2451 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2452 error_report("curses display cannot be used with -daemonize");
2453 exit(1);
2454 }
2455 #endif
2456 }
2457
2458 static void qemu_process_sugar_options(void)
2459 {
2460 if (mem_prealloc) {
2461 QObject *smp = qdict_get(machine_opts_dict, "smp");
2462 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2463 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2464 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2465 const char *val = qstring_get_str(qobject_to(QString, cpus));
2466 object_register_sugar_prop("memory-backend", "prealloc-threads",
2467 val, false);
2468 }
2469 }
2470 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2471 }
2472
2473 if (watchdog) {
2474 int i = select_watchdog(watchdog);
2475 if (i > 0)
2476 exit (i == 1 ? 1 : 0);
2477 }
2478 }
2479
2480 /* -action processing */
2481
2482 /*
2483 * Process all the -action parameters parsed from cmdline.
2484 */
2485 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2486 {
2487 Error *local_err = NULL;
2488 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2489 QObject *ret = NULL;
2490 qmp_marshal_set_action(qdict, &ret, &local_err);
2491 qobject_unref(ret);
2492 qobject_unref(qdict);
2493 if (local_err) {
2494 error_propagate(errp, local_err);
2495 return 1;
2496 }
2497 return 0;
2498 }
2499
2500 static void qemu_process_early_options(void)
2501 {
2502 #ifdef CONFIG_SECCOMP
2503 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2504 if (olist) {
2505 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2506 }
2507 #endif
2508
2509 qemu_opts_foreach(qemu_find_opts("name"),
2510 parse_name, NULL, &error_fatal);
2511
2512 if (qemu_opts_foreach(qemu_find_opts("action"),
2513 process_runstate_actions, NULL, &error_fatal)) {
2514 exit(1);
2515 }
2516
2517 #ifndef _WIN32
2518 qemu_opts_foreach(qemu_find_opts("add-fd"),
2519 parse_add_fd, NULL, &error_fatal);
2520
2521 qemu_opts_foreach(qemu_find_opts("add-fd"),
2522 cleanup_add_fd, NULL, &error_fatal);
2523 #endif
2524
2525 /* Open the logfile at this point and set the log mask if necessary. */
2526 {
2527 int mask = 0;
2528 if (log_mask) {
2529 mask = qemu_str_to_log_mask(log_mask);
2530 if (!mask) {
2531 qemu_print_log_usage(stdout);
2532 exit(1);
2533 }
2534 }
2535 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2536 }
2537
2538 qemu_add_default_firmwarepath();
2539 }
2540
2541 static void qemu_process_help_options(void)
2542 {
2543 /*
2544 * Check for -cpu help and -device help before we call select_machine(),
2545 * which will return an error if the architecture has no default machine
2546 * type and the user did not specify one, so that the user doesn't need
2547 * to say '-cpu help -machine something'.
2548 */
2549 if (cpu_option && is_help_option(cpu_option)) {
2550 list_cpus(cpu_option);
2551 exit(0);
2552 }
2553
2554 if (qemu_opts_foreach(qemu_find_opts("device"),
2555 device_help_func, NULL, NULL)) {
2556 exit(0);
2557 }
2558
2559 /* -L help lists the data directories and exits. */
2560 if (list_data_dirs) {
2561 qemu_list_data_dirs();
2562 exit(0);
2563 }
2564 }
2565
2566 static void qemu_maybe_daemonize(const char *pid_file)
2567 {
2568 Error *err = NULL;
2569
2570 os_daemonize();
2571 rcu_disable_atfork();
2572
2573 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
2574 error_reportf_err(err, "cannot create PID file: ");
2575 exit(1);
2576 }
2577
2578 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
2579 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
2580 }
2581
2582 static void qemu_init_displays(void)
2583 {
2584 DisplayState *ds;
2585
2586 /* init local displays */
2587 ds = init_displaystate();
2588 qemu_display_init(ds, &dpy);
2589
2590 /* must be after terminal init, SDL library changes signal handlers */
2591 os_setup_signal_handling();
2592
2593 /* init remote displays */
2594 #ifdef CONFIG_VNC
2595 qemu_opts_foreach(qemu_find_opts("vnc"),
2596 vnc_init_func, NULL, &error_fatal);
2597 #endif
2598
2599 if (using_spice) {
2600 qemu_spice.display_init();
2601 }
2602 }
2603
2604 static void qemu_init_board(void)
2605 {
2606 /* process plugin before CPUs are created, but once -smp has been parsed */
2607 qemu_plugin_load_list(&plugin_list, &error_fatal);
2608
2609 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2610 machine_run_board_init(current_machine, mem_path, &error_fatal);
2611
2612 drive_check_orphaned();
2613
2614 realtime_init();
2615
2616 if (hax_enabled()) {
2617 /* FIXME: why isn't cpu_synchronize_all_post_init enough? */
2618 hax_sync_vcpus();
2619 }
2620 }
2621
2622 static void qemu_create_cli_devices(void)
2623 {
2624 DeviceOption *opt;
2625
2626 soundhw_init();
2627
2628 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2629 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2630
2631 /* init USB devices */
2632 if (machine_usb(current_machine)) {
2633 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2634 exit(1);
2635 }
2636
2637 /* init generic devices */
2638 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2639 qemu_opts_foreach(qemu_find_opts("device"),
2640 device_init_func, NULL, &error_fatal);
2641 QTAILQ_FOREACH(opt, &device_opts, next) {
2642 DeviceState *dev;
2643 loc_push_restore(&opt->loc);
2644 /*
2645 * TODO Eventually we should call qmp_device_add() here to make sure it
2646 * behaves the same, but QMP still has to accept incorrectly typed
2647 * options until libvirt is fixed and we want to be strict on the CLI
2648 * from the start, so call qdev_device_add_from_qdict() directly for
2649 * now.
2650 */
2651 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2652 object_unref(OBJECT(dev));
2653 loc_pop(&opt->loc);
2654 }
2655 rom_reset_order_override();
2656 }
2657
2658 static void qemu_machine_creation_done(void)
2659 {
2660 MachineState *machine = MACHINE(qdev_get_machine());
2661
2662 /* Did we create any drives that we failed to create a device for? */
2663 drive_check_orphaned();
2664
2665 /* Don't warn about the default network setup that you get if
2666 * no command line -net or -netdev options are specified. There
2667 * are two cases that we would otherwise complain about:
2668 * (1) board doesn't support a NIC but the implicit "-net nic"
2669 * requested one
2670 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2671 * sets up a nic that isn't connected to anything.
2672 */
2673 if (!default_net && (!qtest_enabled() || has_defaults)) {
2674 net_check_clients();
2675 }
2676
2677 qdev_prop_check_globals();
2678
2679 qdev_machine_creation_done();
2680
2681 if (machine->cgs) {
2682 /*
2683 * Verify that Confidential Guest Support has actually been initialized
2684 */
2685 assert(machine->cgs->ready);
2686 }
2687
2688 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2689 exit(1);
2690 }
2691 if (!vga_interface_created && !default_vga &&
2692 vga_interface_type != VGA_NONE) {
2693 warn_report("A -vga option was passed but this machine "
2694 "type does not use that option; "
2695 "No VGA device has been created");
2696 }
2697 }
2698
2699 void qmp_x_exit_preconfig(Error **errp)
2700 {
2701 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2702 error_setg(errp, "The command is permitted only before machine initialization");
2703 return;
2704 }
2705
2706 qemu_init_board();
2707 qemu_create_cli_devices();
2708 cxl_fixed_memory_window_link_targets(errp);
2709 qemu_machine_creation_done();
2710
2711 if (loadvm) {
2712 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2713 }
2714 if (replay_mode != REPLAY_MODE_NONE) {
2715 replay_vmstate_init();
2716 }
2717
2718 if (incoming) {
2719 Error *local_err = NULL;
2720 if (strcmp(incoming, "defer") != 0) {
2721 qmp_migrate_incoming(incoming, &local_err);
2722 if (local_err) {
2723 error_reportf_err(local_err, "-incoming %s: ", incoming);
2724 exit(1);
2725 }
2726 }
2727 } else if (autostart) {
2728 qmp_cont(NULL);
2729 }
2730 }
2731
2732 void qemu_init(int argc, char **argv, char **envp)
2733 {
2734 QemuOpts *opts;
2735 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2736 QemuOptsList *olist;
2737 int optind;
2738 const char *optarg;
2739 MachineClass *machine_class;
2740 bool userconfig = true;
2741 FILE *vmstate_dump_file = NULL;
2742
2743 qemu_add_opts(&qemu_drive_opts);
2744 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2745 qemu_add_drive_opts(&qemu_common_drive_opts);
2746 qemu_add_drive_opts(&qemu_drive_opts);
2747 qemu_add_drive_opts(&bdrv_runtime_opts);
2748 qemu_add_opts(&qemu_chardev_opts);
2749 qemu_add_opts(&qemu_device_opts);
2750 qemu_add_opts(&qemu_netdev_opts);
2751 qemu_add_opts(&qemu_nic_opts);
2752 qemu_add_opts(&qemu_net_opts);
2753 qemu_add_opts(&qemu_rtc_opts);
2754 qemu_add_opts(&qemu_global_opts);
2755 qemu_add_opts(&qemu_mon_opts);
2756 qemu_add_opts(&qemu_trace_opts);
2757 qemu_plugin_add_opts();
2758 qemu_add_opts(&qemu_option_rom_opts);
2759 qemu_add_opts(&qemu_accel_opts);
2760 qemu_add_opts(&qemu_mem_opts);
2761 qemu_add_opts(&qemu_smp_opts);
2762 qemu_add_opts(&qemu_boot_opts);
2763 qemu_add_opts(&qemu_add_fd_opts);
2764 qemu_add_opts(&qemu_object_opts);
2765 qemu_add_opts(&qemu_tpmdev_opts);
2766 qemu_add_opts(&qemu_overcommit_opts);
2767 qemu_add_opts(&qemu_msg_opts);
2768 qemu_add_opts(&qemu_name_opts);
2769 qemu_add_opts(&qemu_numa_opts);
2770 qemu_add_opts(&qemu_icount_opts);
2771 qemu_add_opts(&qemu_semihosting_config_opts);
2772 qemu_add_opts(&qemu_fw_cfg_opts);
2773 qemu_add_opts(&qemu_action_opts);
2774 module_call_init(MODULE_INIT_OPTS);
2775
2776 error_init(argv[0]);
2777 qemu_init_exec_dir(argv[0]);
2778
2779 qemu_init_arch_modules();
2780
2781 qemu_init_subsystems();
2782
2783 /* first pass of option parsing */
2784 optind = 1;
2785 while (optind < argc) {
2786 if (argv[optind][0] != '-') {
2787 /* disk image */
2788 optind++;
2789 } else {
2790 const QEMUOption *popt;
2791
2792 popt = lookup_opt(argc, argv, &optarg, &optind);
2793 switch (popt->index) {
2794 case QEMU_OPTION_nouserconfig:
2795 userconfig = false;
2796 break;
2797 }
2798 }
2799 }
2800
2801 machine_opts_dict = qdict_new();
2802 if (userconfig) {
2803 qemu_read_default_config_file(&error_fatal);
2804 }
2805
2806 /* second pass of option parsing */
2807 optind = 1;
2808 for(;;) {
2809 if (optind >= argc)
2810 break;
2811 if (argv[optind][0] != '-') {
2812 loc_set_cmdline(argv, optind, 1);
2813 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2814 } else {
2815 const QEMUOption *popt;
2816
2817 popt = lookup_opt(argc, argv, &optarg, &optind);
2818 if (!(popt->arch_mask & arch_type)) {
2819 error_report("Option not supported for this target");
2820 exit(1);
2821 }
2822 switch(popt->index) {
2823 case QEMU_OPTION_cpu:
2824 /* hw initialization will check this */
2825 cpu_option = optarg;
2826 break;
2827 case QEMU_OPTION_hda:
2828 case QEMU_OPTION_hdb:
2829 case QEMU_OPTION_hdc:
2830 case QEMU_OPTION_hdd:
2831 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2832 HD_OPTS);
2833 break;
2834 case QEMU_OPTION_blockdev:
2835 {
2836 Visitor *v;
2837 BlockdevOptionsQueueEntry *bdo;
2838
2839 v = qobject_input_visitor_new_str(optarg, "driver",
2840 &error_fatal);
2841
2842 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2843 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2844 &error_fatal);
2845 visit_free(v);
2846 loc_save(&bdo->loc);
2847 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2848 break;
2849 }
2850 case QEMU_OPTION_drive:
2851 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2852 optarg, false);
2853 if (opts == NULL) {
2854 exit(1);
2855 }
2856 break;
2857 case QEMU_OPTION_set:
2858 qemu_set_option(optarg, &error_fatal);
2859 break;
2860 case QEMU_OPTION_global:
2861 if (qemu_global_option(optarg) != 0)
2862 exit(1);
2863 break;
2864 case QEMU_OPTION_mtdblock:
2865 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2866 break;
2867 case QEMU_OPTION_sd:
2868 drive_add(IF_SD, -1, optarg, SD_OPTS);
2869 break;
2870 case QEMU_OPTION_pflash:
2871 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2872 break;
2873 case QEMU_OPTION_snapshot:
2874 {
2875 Error *blocker = NULL;
2876 snapshot = 1;
2877 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
2878 "-snapshot");
2879 replay_add_blocker(blocker);
2880 }
2881 break;
2882 case QEMU_OPTION_numa:
2883 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2884 optarg, true);
2885 if (!opts) {
2886 exit(1);
2887 }
2888 break;
2889 case QEMU_OPTION_cxl_fixed_memory_window:
2890 parse_cxl_fixed_memory_window(optarg);
2891 break;
2892 case QEMU_OPTION_display:
2893 parse_display(optarg);
2894 break;
2895 case QEMU_OPTION_nographic:
2896 qdict_put_str(machine_opts_dict, "graphics", "off");
2897 nographic = true;
2898 dpy.type = DISPLAY_TYPE_NONE;
2899 break;
2900 case QEMU_OPTION_curses:
2901 warn_report("-curses is deprecated, "
2902 "use -display curses instead.");
2903 #ifdef CONFIG_CURSES
2904 dpy.type = DISPLAY_TYPE_CURSES;
2905 #else
2906 error_report("curses or iconv support is disabled");
2907 exit(1);
2908 #endif
2909 break;
2910 case QEMU_OPTION_portrait:
2911 graphic_rotate = 90;
2912 break;
2913 case QEMU_OPTION_rotate:
2914 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2915 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2916 graphic_rotate != 180 && graphic_rotate != 270) {
2917 error_report("only 90, 180, 270 deg rotation is available");
2918 exit(1);
2919 }
2920 break;
2921 case QEMU_OPTION_kernel:
2922 qdict_put_str(machine_opts_dict, "kernel", optarg);
2923 break;
2924 case QEMU_OPTION_initrd:
2925 qdict_put_str(machine_opts_dict, "initrd", optarg);
2926 break;
2927 case QEMU_OPTION_append:
2928 qdict_put_str(machine_opts_dict, "append", optarg);
2929 break;
2930 case QEMU_OPTION_dtb:
2931 qdict_put_str(machine_opts_dict, "dtb", optarg);
2932 break;
2933 case QEMU_OPTION_cdrom:
2934 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2935 break;
2936 case QEMU_OPTION_boot:
2937 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2938 break;
2939 case QEMU_OPTION_fda:
2940 case QEMU_OPTION_fdb:
2941 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2942 optarg, FD_OPTS);
2943 break;
2944 case QEMU_OPTION_no_fd_bootchk:
2945 fd_bootchk = 0;
2946 break;
2947 case QEMU_OPTION_netdev:
2948 default_net = 0;
2949 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2950 exit(1);
2951 }
2952 break;
2953 case QEMU_OPTION_nic:
2954 default_net = 0;
2955 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
2956 exit(1);
2957 }
2958 break;
2959 case QEMU_OPTION_net:
2960 default_net = 0;
2961 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2962 exit(1);
2963 }
2964 break;
2965 #ifdef CONFIG_LIBISCSI
2966 case QEMU_OPTION_iscsi:
2967 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2968 optarg, false);
2969 if (!opts) {
2970 exit(1);
2971 }
2972 break;
2973 #endif
2974 case QEMU_OPTION_audio_help:
2975 audio_legacy_help();
2976 exit (0);
2977 break;
2978 case QEMU_OPTION_audiodev:
2979 audio_parse_option(optarg);
2980 break;
2981 case QEMU_OPTION_audio: {
2982 QDict *dict = keyval_parse(optarg, "driver", NULL, &error_fatal);
2983 char *model;
2984 Audiodev *dev = NULL;
2985 Visitor *v;
2986
2987 if (!qdict_haskey(dict, "id")) {
2988 qdict_put_str(dict, "id", "audiodev0");
2989 }
2990 if (!qdict_haskey(dict, "model")) {
2991 error_setg(&error_fatal, "Parameter 'model' is missing");
2992 }
2993 model = g_strdup(qdict_get_str(dict, "model"));
2994 qdict_del(dict, "model");
2995 if (is_help_option(model)) {
2996 show_valid_soundhw();
2997 exit(0);
2998 }
2999 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
3000 qobject_unref(dict);
3001 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
3002 visit_free(v);
3003 audio_define(dev);
3004 select_soundhw(model, dev->id);
3005 g_free(model);
3006 break;
3007 }
3008 case QEMU_OPTION_h:
3009 help(0);
3010 break;
3011 case QEMU_OPTION_version:
3012 version();
3013 exit(0);
3014 break;
3015 case QEMU_OPTION_m:
3016 parse_memory_options(optarg);
3017 break;
3018 #ifdef CONFIG_TPM
3019 case QEMU_OPTION_tpmdev:
3020 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3021 exit(1);
3022 }
3023 break;
3024 #endif
3025 case QEMU_OPTION_mempath:
3026 mem_path = optarg;
3027 break;
3028 case QEMU_OPTION_mem_prealloc:
3029 mem_prealloc = 1;
3030 break;
3031 case QEMU_OPTION_d:
3032 log_mask = optarg;
3033 break;
3034 case QEMU_OPTION_D:
3035 log_file = optarg;
3036 break;
3037 case QEMU_OPTION_DFILTER:
3038 qemu_set_dfilter_ranges(optarg, &error_fatal);
3039 break;
3040 case QEMU_OPTION_seed:
3041 qemu_guest_random_seed_main(optarg, &error_fatal);
3042 break;
3043 case QEMU_OPTION_s:
3044 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3045 break;
3046 case QEMU_OPTION_gdb:
3047 add_device_config(DEV_GDB, optarg);
3048 break;
3049 case QEMU_OPTION_L:
3050 if (is_help_option(optarg)) {
3051 list_data_dirs = true;
3052 } else {
3053 qemu_add_data_dir(g_strdup(optarg));
3054 }
3055 break;
3056 case QEMU_OPTION_bios:
3057 qdict_put_str(machine_opts_dict, "firmware", optarg);
3058 break;
3059 case QEMU_OPTION_singlestep:
3060 singlestep = 1;
3061 break;
3062 case QEMU_OPTION_S:
3063 autostart = 0;
3064 break;
3065 case QEMU_OPTION_k:
3066 keyboard_layout = optarg;
3067 break;
3068 case QEMU_OPTION_vga:
3069 vga_model = optarg;
3070 default_vga = 0;
3071 break;
3072 case QEMU_OPTION_g:
3073 {
3074 const char *p;
3075 int w, h, depth;
3076 p = optarg;
3077 w = strtol(p, (char **)&p, 10);
3078 if (w <= 0) {
3079 graphic_error:
3080 error_report("invalid resolution or depth");
3081 exit(1);
3082 }
3083 if (*p != 'x')
3084 goto graphic_error;
3085 p++;
3086 h = strtol(p, (char **)&p, 10);
3087 if (h <= 0)
3088 goto graphic_error;
3089 if (*p == 'x') {
3090 p++;
3091 depth = strtol(p, (char **)&p, 10);
3092 if (depth != 1 && depth != 2 && depth != 4 &&
3093 depth != 8 && depth != 15 && depth != 16 &&
3094 depth != 24 && depth != 32)
3095 goto graphic_error;
3096 } else if (*p == '\0') {
3097 depth = graphic_depth;
3098 } else {
3099 goto graphic_error;
3100 }
3101
3102 graphic_width = w;
3103 graphic_height = h;
3104 graphic_depth = depth;
3105 }
3106 break;
3107 case QEMU_OPTION_echr:
3108 {
3109 char *r;
3110 term_escape_char = strtol(optarg, &r, 0);
3111 if (r == optarg)
3112 printf("Bad argument to echr\n");
3113 break;
3114 }
3115 case QEMU_OPTION_monitor:
3116 default_monitor = 0;
3117 if (strncmp(optarg, "none", 4)) {
3118 monitor_parse(optarg, "readline", false);
3119 }
3120 break;
3121 case QEMU_OPTION_qmp:
3122 monitor_parse(optarg, "control", false);
3123 default_monitor = 0;
3124 break;
3125 case QEMU_OPTION_qmp_pretty:
3126 monitor_parse(optarg, "control", true);
3127 default_monitor = 0;
3128 break;
3129 case QEMU_OPTION_mon:
3130 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3131 true);
3132 if (!opts) {
3133 exit(1);
3134 }
3135 default_monitor = 0;
3136 break;
3137 case QEMU_OPTION_chardev:
3138 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3139 optarg, true);
3140 if (!opts) {
3141 exit(1);
3142 }
3143 break;
3144 case QEMU_OPTION_fsdev:
3145 olist = qemu_find_opts("fsdev");
3146 if (!olist) {
3147 error_report("fsdev support is disabled");
3148 exit(1);
3149 }
3150 opts = qemu_opts_parse_noisily(olist, optarg, true);
3151 if (!opts) {
3152 exit(1);
3153 }
3154 break;
3155 case QEMU_OPTION_virtfs: {
3156 QemuOpts *fsdev;
3157 QemuOpts *device;
3158 const char *writeout, *sock_fd, *socket, *path, *security_model,
3159 *multidevs;
3160
3161 olist = qemu_find_opts("virtfs");
3162 if (!olist) {
3163 error_report("virtfs support is disabled");
3164 exit(1);
3165 }
3166 opts = qemu_opts_parse_noisily(olist, optarg, true);
3167 if (!opts) {
3168 exit(1);
3169 }
3170
3171 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3172 qemu_opt_get(opts, "mount_tag") == NULL) {
3173 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3174 exit(1);
3175 }
3176 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3177 qemu_opts_id(opts) ?:
3178 qemu_opt_get(opts, "mount_tag"),
3179 1, NULL);
3180 if (!fsdev) {
3181 error_report("duplicate or invalid fsdev id: %s",
3182 qemu_opt_get(opts, "mount_tag"));
3183 exit(1);
3184 }
3185
3186 writeout = qemu_opt_get(opts, "writeout");
3187 if (writeout) {
3188 #ifdef CONFIG_SYNC_FILE_RANGE
3189 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3190 #else
3191 error_report("writeout=immediate not supported "
3192 "on this platform");
3193 exit(1);
3194 #endif
3195 }
3196 qemu_opt_set(fsdev, "fsdriver",
3197 qemu_opt_get(opts, "fsdriver"), &error_abort);
3198 path = qemu_opt_get(opts, "path");
3199 if (path) {
3200 qemu_opt_set(fsdev, "path", path, &error_abort);
3201 }
3202 security_model = qemu_opt_get(opts, "security_model");
3203 if (security_model) {
3204 qemu_opt_set(fsdev, "security_model", security_model,
3205 &error_abort);
3206 }
3207 socket = qemu_opt_get(opts, "socket");
3208 if (socket) {
3209 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3210 }
3211 sock_fd = qemu_opt_get(opts, "sock_fd");
3212 if (sock_fd) {
3213 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3214 }
3215
3216 qemu_opt_set_bool(fsdev, "readonly",
3217 qemu_opt_get_bool(opts, "readonly", 0),
3218 &error_abort);
3219 multidevs = qemu_opt_get(opts, "multidevs");
3220 if (multidevs) {
3221 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3222 }
3223 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3224 &error_abort);
3225 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3226 qemu_opt_set(device, "fsdev",
3227 qemu_opts_id(fsdev), &error_abort);
3228 qemu_opt_set(device, "mount_tag",
3229 qemu_opt_get(opts, "mount_tag"), &error_abort);
3230 break;
3231 }
3232 case QEMU_OPTION_serial:
3233 add_device_config(DEV_SERIAL, optarg);
3234 default_serial = 0;
3235 if (strncmp(optarg, "mon:", 4) == 0) {
3236 default_monitor = 0;
3237 }
3238 break;
3239 case QEMU_OPTION_watchdog:
3240 if (watchdog) {
3241 error_report("only one watchdog option may be given");
3242 exit(1);
3243 }
3244 warn_report("-watchdog is deprecated; use -device instead.");
3245 watchdog = optarg;
3246 break;
3247 case QEMU_OPTION_action:
3248 olist = qemu_find_opts("action");
3249 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3250 exit(1);
3251 }
3252 break;
3253 case QEMU_OPTION_watchdog_action: {
3254 QemuOpts *opts;
3255 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3256 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3257 break;
3258 }
3259 case QEMU_OPTION_parallel:
3260 add_device_config(DEV_PARALLEL, optarg);
3261 default_parallel = 0;
3262 if (strncmp(optarg, "mon:", 4) == 0) {
3263 default_monitor = 0;
3264 }
3265 break;
3266 case QEMU_OPTION_debugcon:
3267 add_device_config(DEV_DEBUGCON, optarg);
3268 break;
3269 case QEMU_OPTION_loadvm:
3270 loadvm = optarg;
3271 break;
3272 case QEMU_OPTION_full_screen:
3273 dpy.has_full_screen = true;
3274 dpy.full_screen = true;
3275 break;
3276 case QEMU_OPTION_alt_grab:
3277 alt_grab = 1;
3278 warn_report("-alt-grab is deprecated, please use "
3279 "-display sdl,grab-mod=lshift-lctrl-lalt instead.");
3280 break;
3281 case QEMU_OPTION_ctrl_grab:
3282 ctrl_grab = 1;
3283 warn_report("-ctrl-grab is deprecated, please use "
3284 "-display sdl,grab-mod=rctrl instead.");
3285 break;
3286 case QEMU_OPTION_sdl:
3287 warn_report("-sdl is deprecated, use -display sdl instead.");
3288 #ifdef CONFIG_SDL
3289 dpy.type = DISPLAY_TYPE_SDL;
3290 break;
3291 #else
3292 error_report("SDL support is disabled");
3293 exit(1);
3294 #endif
3295 case QEMU_OPTION_pidfile:
3296 pid_file = optarg;
3297 break;
3298 case QEMU_OPTION_win2k_hack:
3299 win2k_install_hack = 1;
3300 break;
3301 case QEMU_OPTION_acpitable:
3302 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3303 optarg, true);
3304 if (!opts) {
3305 exit(1);
3306 }
3307 acpi_table_add(opts, &error_fatal);
3308 break;
3309 case QEMU_OPTION_smbios:
3310 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3311 optarg, false);
3312 if (!opts) {
3313 exit(1);
3314 }
3315 smbios_entry_add(opts, &error_fatal);
3316 break;
3317 case QEMU_OPTION_fwcfg:
3318 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3319 optarg, true);
3320 if (opts == NULL) {
3321 exit(1);
3322 }
3323 break;
3324 case QEMU_OPTION_preconfig:
3325 preconfig_requested = true;
3326 break;
3327 case QEMU_OPTION_enable_kvm:
3328 qdict_put_str(machine_opts_dict, "accel", "kvm");
3329 break;
3330 case QEMU_OPTION_M:
3331 case QEMU_OPTION_machine:
3332 {
3333 bool help;
3334
3335 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3336 if (help) {
3337 machine_help_func(machine_opts_dict);
3338 exit(EXIT_SUCCESS);
3339 }
3340 break;
3341 }
3342 case QEMU_OPTION_accel:
3343 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3344 optarg, true);
3345 optarg = qemu_opt_get(accel_opts, "accel");
3346 if (!optarg || is_help_option(optarg)) {
3347 printf("Accelerators supported in QEMU binary:\n");
3348 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3349 false);
3350 for (el = accel_list; el; el = el->next) {
3351 gchar *typename = g_strdup(object_class_get_name(
3352 OBJECT_CLASS(el->data)));
3353 /* omit qtest which is used for tests only */
3354 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3355 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3356 gchar **optname = g_strsplit(typename,
3357 ACCEL_CLASS_SUFFIX, 0);
3358 printf("%s\n", optname[0]);
3359 g_strfreev(optname);
3360 }
3361 g_free(typename);
3362 }
3363 g_slist_free(accel_list);
3364 exit(0);
3365 }
3366 break;
3367 case QEMU_OPTION_usb:
3368 qdict_put_str(machine_opts_dict, "usb", "on");
3369 break;
3370 case QEMU_OPTION_usbdevice:
3371 qdict_put_str(machine_opts_dict, "usb", "on");
3372 add_device_config(DEV_USB, optarg);
3373 break;
3374 case QEMU_OPTION_device:
3375 if (optarg[0] == '{') {
3376 QObject *obj = qobject_from_json(optarg, &error_fatal);
3377 DeviceOption *opt = g_new0(DeviceOption, 1);
3378 opt->opts = qobject_to(QDict, obj);
3379 loc_save(&opt->loc);
3380 assert(opt->opts != NULL);
3381 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3382 } else {
3383 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3384 optarg, true)) {
3385 exit(1);
3386 }
3387 }
3388 break;
3389 case QEMU_OPTION_smp:
3390 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3391 "smp", optarg);
3392 break;
3393 case QEMU_OPTION_vnc:
3394 vnc_parse(optarg);
3395 break;
3396 case QEMU_OPTION_no_acpi:
3397 qdict_put_str(machine_opts_dict, "acpi", "off");
3398 break;
3399 case QEMU_OPTION_no_hpet:
3400 qdict_put_str(machine_opts_dict, "hpet", "off");
3401 break;
3402 case QEMU_OPTION_no_reboot:
3403 olist = qemu_find_opts("action");
3404 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3405 break;
3406 case QEMU_OPTION_no_shutdown:
3407 olist = qemu_find_opts("action");
3408 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3409 break;
3410 case QEMU_OPTION_uuid:
3411 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3412 error_report("failed to parse UUID string: wrong format");
3413 exit(1);
3414 }
3415 qemu_uuid_set = true;
3416 break;
3417 case QEMU_OPTION_option_rom:
3418 if (nb_option_roms >= MAX_OPTION_ROMS) {
3419 error_report("too many option ROMs");
3420 exit(1);
3421 }
3422 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3423 optarg, true);
3424 if (!opts) {
3425 exit(1);
3426 }
3427 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3428 option_rom[nb_option_roms].bootindex =
3429 qemu_opt_get_number(opts, "bootindex", -1);
3430 if (!option_rom[nb_option_roms].name) {
3431 error_report("Option ROM file is not specified");
3432 exit(1);
3433 }
3434 nb_option_roms++;
3435 break;
3436 case QEMU_OPTION_semihosting:
3437 qemu_semihosting_enable();
3438 break;
3439 case QEMU_OPTION_semihosting_config:
3440 if (qemu_semihosting_config_options(optarg) != 0) {
3441 exit(1);
3442 }
3443 break;
3444 case QEMU_OPTION_name:
3445 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3446 optarg, true);
3447 if (!opts) {
3448 exit(1);
3449 }
3450 /* Capture guest name if -msg guest-name is used later */
3451 error_guest_name = qemu_opt_get(opts, "guest");
3452 break;
3453 case QEMU_OPTION_prom_env:
3454 if (nb_prom_envs >= MAX_PROM_ENVS) {
3455 error_report("too many prom variables");
3456 exit(1);
3457 }
3458 prom_envs[nb_prom_envs] = optarg;
3459 nb_prom_envs++;
3460 break;
3461 case QEMU_OPTION_old_param:
3462 old_param = 1;
3463 break;
3464 case QEMU_OPTION_rtc:
3465 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3466 false);
3467 if (!opts) {
3468 exit(1);
3469 }
3470 break;
3471 case QEMU_OPTION_icount:
3472 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3473 optarg, true);
3474 if (!icount_opts) {
3475 exit(1);
3476 }
3477 break;
3478 case QEMU_OPTION_incoming:
3479 if (!incoming) {
3480 runstate_set(RUN_STATE_INMIGRATE);
3481 }
3482 incoming = optarg;
3483 break;
3484 case QEMU_OPTION_only_migratable:
3485 only_migratable = 1;
3486 break;
3487 case QEMU_OPTION_nodefaults:
3488 has_defaults = 0;
3489 break;
3490 case QEMU_OPTION_xen_domid:
3491 if (!(accel_find("xen"))) {
3492 error_report("Option not supported for this target");
3493 exit(1);
3494 }
3495 xen_domid = atoi(optarg);
3496 break;
3497 case QEMU_OPTION_xen_attach:
3498 if (!(accel_find("xen"))) {
3499 error_report("Option not supported for this target");
3500 exit(1);
3501 }
3502 xen_mode = XEN_ATTACH;
3503 break;
3504 case QEMU_OPTION_xen_domid_restrict:
3505 if (!(accel_find("xen"))) {
3506 error_report("Option not supported for this target");
3507 exit(1);
3508 }
3509 xen_domid_restrict = true;
3510 break;
3511 case QEMU_OPTION_trace:
3512 trace_opt_parse(optarg);
3513 break;
3514 case QEMU_OPTION_plugin:
3515 qemu_plugin_opt_parse(optarg, &plugin_list);
3516 break;
3517 case QEMU_OPTION_readconfig:
3518 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3519 break;
3520 #ifdef CONFIG_SPICE
3521 case QEMU_OPTION_spice:
3522 olist = qemu_find_opts_err("spice", NULL);
3523 if (!olist) {
3524 error_report("spice support is disabled");
3525 exit(1);
3526 }
3527 opts = qemu_opts_parse_noisily(olist, optarg, false);
3528 if (!opts) {
3529 exit(1);
3530 }
3531 display_remote++;
3532 break;
3533 #endif
3534 case QEMU_OPTION_qtest:
3535 qtest_chrdev = optarg;
3536 break;
3537 case QEMU_OPTION_qtest_log:
3538 qtest_log = optarg;
3539 break;
3540 case QEMU_OPTION_sandbox:
3541 olist = qemu_find_opts("sandbox");
3542 if (!olist) {
3543 #ifndef CONFIG_SECCOMP
3544 error_report("-sandbox support is not enabled "
3545 "in this QEMU binary");
3546 #endif
3547 exit(1);
3548 }
3549
3550 opts = qemu_opts_parse_noisily(olist, optarg, true);
3551 if (!opts) {
3552 exit(1);
3553 }
3554 break;
3555 case QEMU_OPTION_add_fd:
3556 #ifndef _WIN32
3557 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3558 optarg, false);
3559 if (!opts) {
3560 exit(1);
3561 }
3562 #else
3563 error_report("File descriptor passing is disabled on this "
3564 "platform");
3565 exit(1);
3566 #endif
3567 break;
3568 case QEMU_OPTION_object:
3569 object_option_parse(optarg);
3570 break;
3571 case QEMU_OPTION_overcommit:
3572 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3573 optarg, false);
3574 if (!opts) {
3575 exit(1);
3576 }
3577 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3578 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3579 break;
3580 case QEMU_OPTION_compat:
3581 {
3582 CompatPolicy *opts;
3583 Visitor *v;
3584
3585 v = qobject_input_visitor_new_str(optarg, NULL,
3586 &error_fatal);
3587
3588 visit_type_CompatPolicy(v, NULL, &opts, &error_fatal);
3589 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts);
3590
3591 qapi_free_CompatPolicy(opts);
3592 visit_free(v);
3593 break;
3594 }
3595 case QEMU_OPTION_msg:
3596 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3597 false);
3598 if (!opts) {
3599 exit(1);
3600 }
3601 configure_msg(opts);
3602 break;
3603 case QEMU_OPTION_dump_vmstate:
3604 if (vmstate_dump_file) {
3605 error_report("only one '-dump-vmstate' "
3606 "option may be given");
3607 exit(1);
3608 }
3609 vmstate_dump_file = fopen(optarg, "w");
3610 if (vmstate_dump_file == NULL) {
3611 error_report("open %s: %s", optarg, strerror(errno));
3612 exit(1);
3613 }
3614 break;
3615 case QEMU_OPTION_enable_sync_profile:
3616 qsp_enable();
3617 break;
3618 case QEMU_OPTION_nouserconfig:
3619 /* Nothing to be parsed here. Especially, do not error out below. */
3620 break;
3621 default:
3622 if (os_parse_cmd_args(popt->index, optarg)) {
3623 error_report("Option not supported in this build");
3624 exit(1);
3625 }
3626 }
3627 }
3628 }
3629 /*
3630 * Clear error location left behind by the loop.
3631 * Best done right after the loop. Do not insert code here!
3632 */
3633 loc_set_none();
3634
3635 qemu_validate_options(machine_opts_dict);
3636 qemu_process_sugar_options();
3637
3638 /*
3639 * These options affect everything else and should be processed
3640 * before daemonizing.
3641 */
3642 qemu_process_early_options();
3643
3644 qemu_process_help_options();
3645 qemu_maybe_daemonize(pid_file);
3646
3647 /*
3648 * The trace backend must be initialized after daemonizing.
3649 * trace_init_backends() will call st_init(), which will create the
3650 * trace thread in the parent, and also register st_flush_trace_buffer()
3651 * in atexit(). This function will force the parent to wait for the
3652 * writeout thread to finish, which will not occur, and the parent
3653 * process will be left in the host.
3654 */
3655 if (!trace_init_backends()) {
3656 exit(1);
3657 }
3658 trace_init_file();
3659
3660 qemu_init_main_loop(&error_fatal);
3661 cpu_timers_init();
3662
3663 user_register_global_props();
3664 replay_configure(icount_opts);
3665
3666 configure_rtc(qemu_find_opts_singleton("rtc"));
3667
3668 qemu_create_machine(machine_opts_dict);
3669
3670 suspend_mux_open();
3671
3672 qemu_disable_default_devices();
3673 qemu_create_default_devices();
3674 qemu_create_early_backends();
3675
3676 qemu_apply_legacy_machine_options(machine_opts_dict);
3677 qemu_apply_machine_options(machine_opts_dict);
3678 qobject_unref(machine_opts_dict);
3679 phase_advance(PHASE_MACHINE_CREATED);
3680
3681 /*
3682 * Note: uses machine properties such as kernel-irqchip, must run
3683 * after qemu_apply_machine_options.
3684 */
3685 configure_accelerators(argv[0]);
3686 phase_advance(PHASE_ACCEL_CREATED);
3687
3688 /*
3689 * Beware, QOM objects created before this point miss global and
3690 * compat properties.
3691 *
3692 * Global properties get set up by qdev_prop_register_global(),
3693 * called from user_register_global_props(), and certain option
3694 * desugaring. Also in CPU feature desugaring (buried in
3695 * parse_cpu_option()), which happens below this point, but may
3696 * only target the CPU type, which can only be created after
3697 * parse_cpu_option() returned the type.
3698 *
3699 * Machine compat properties: object_set_machine_compat_props().
3700 * Accelerator compat props: object_set_accelerator_compat_props(),
3701 * called from do_configure_accelerator().
3702 */
3703
3704 machine_class = MACHINE_GET_CLASS(current_machine);
3705 if (!qtest_enabled() && machine_class->deprecation_reason) {
3706 warn_report("Machine type '%s' is deprecated: %s",
3707 machine_class->name, machine_class->deprecation_reason);
3708 }
3709
3710 /*
3711 * Note: creates a QOM object, must run only after global and
3712 * compat properties have been set up.
3713 */
3714 migration_object_init();
3715
3716 qemu_create_late_backends();
3717
3718 /* parse features once if machine provides default cpu_type */
3719 current_machine->cpu_type = machine_class->default_cpu_type;
3720 if (cpu_option) {
3721 current_machine->cpu_type = parse_cpu_option(cpu_option);
3722 }
3723 /* NB: for machine none cpu_type could STILL be NULL here! */
3724
3725 qemu_resolve_machine_memdev();
3726 parse_numa_opts(current_machine);
3727 cxl_set_opts();
3728
3729 if (vmstate_dump_file) {
3730 /* dump and exit */
3731 module_load_qom_all();
3732 dump_vmstate_json_to_file(vmstate_dump_file);
3733 exit(0);
3734 }
3735
3736 if (!preconfig_requested) {
3737 qmp_x_exit_preconfig(&error_fatal);
3738 }
3739 qemu_init_displays();
3740 accel_setup_post(current_machine);
3741 os_setup_post();
3742 resume_mux_open();
3743 }
Ray Wang's QEMU Repository