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vl: Fix exit status for -drive format=help
[mirror_qemu.git] / vl.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
33
34 #ifdef CONFIG_SDL
35 #if defined(__APPLE__) || defined(main)
36 #include <SDL.h>
37 int qemu_main(int argc, char **argv, char **envp);
38 int main(int argc, char **argv)
39 {
40 return qemu_main(argc, argv, NULL);
41 }
42 #undef main
43 #define main qemu_main
44 #endif
45 #endif /* CONFIG_SDL */
46
47 #ifdef CONFIG_COCOA
48 #undef main
49 #define main qemu_main
50 #endif /* CONFIG_COCOA */
51
52
53 #include "qemu/error-report.h"
54 #include "qemu/sockets.h"
55 #include "hw/hw.h"
56 #include "hw/boards.h"
57 #include "sysemu/accel.h"
58 #include "hw/usb.h"
59 #include "hw/isa/isa.h"
60 #include "hw/scsi/scsi.h"
61 #include "hw/display/vga.h"
62 #include "hw/bt.h"
63 #include "sysemu/watchdog.h"
64 #include "hw/smbios/smbios.h"
65 #include "hw/acpi/acpi.h"
66 #include "hw/xen/xen.h"
67 #include "hw/qdev.h"
68 #include "hw/loader.h"
69 #include "monitor/qdev.h"
70 #include "sysemu/bt.h"
71 #include "net/net.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
75 #include "ui/input.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
82 #include "qemu/log.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
102 #ifdef CONFIG_VIRTFS
103 #include "fsdev/qemu-fsdev.h"
104 #endif
105 #include "sysemu/qtest.h"
106
107 #include "disas/disas.h"
108
109
110 #include "slirp/libslirp.h"
111
112 #include "trace-root.h"
113 #include "trace/control.h"
114 #include "qemu/queue.h"
115 #include "sysemu/arch_init.h"
116
117 #include "ui/qemu-spice.h"
118 #include "qapi/string-input-visitor.h"
119 #include "qapi/opts-visitor.h"
120 #include "qapi/clone-visitor.h"
121 #include "qom/object_interfaces.h"
122 #include "exec/semihost.h"
123 #include "crypto/init.h"
124 #include "sysemu/replay.h"
125 #include "qapi/qapi-events-run-state.h"
126 #include "qapi/qapi-visit-block-core.h"
127 #include "qapi/qapi-visit-ui.h"
128 #include "qapi/qapi-commands-block-core.h"
129 #include "qapi/qapi-commands-misc.h"
130 #include "qapi/qapi-commands-run-state.h"
131 #include "qapi/qmp/qerror.h"
132 #include "sysemu/iothread.h"
133
134 #define MAX_VIRTIO_CONSOLES 1
135
136 static const char *data_dir[16];
137 static int data_dir_idx;
138 const char *bios_name = NULL;
139 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
140 int display_opengl;
141 const char* keyboard_layout = NULL;
142 ram_addr_t ram_size;
143 const char *mem_path = NULL;
144 int mem_prealloc = 0; /* force preallocation of physical target memory */
145 bool enable_mlock = false;
146 bool enable_cpu_pm = false;
147 int nb_nics;
148 NICInfo nd_table[MAX_NICS];
149 int autostart;
150 static int rtc_utc = 1;
151 static int rtc_date_offset = -1; /* -1 means no change */
152 QEMUClockType rtc_clock;
153 int vga_interface_type = VGA_NONE;
154 static DisplayOptions dpy;
155 int no_frame;
156 static int num_serial_hds;
157 static Chardev **serial_hds;
158 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
159 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
160 int win2k_install_hack = 0;
161 int singlestep = 0;
162 int smp_cpus;
163 unsigned int max_cpus;
164 int smp_cores = 1;
165 int smp_threads = 1;
166 int acpi_enabled = 1;
167 int no_hpet = 0;
168 int fd_bootchk = 1;
169 static int no_reboot;
170 int no_shutdown = 0;
171 int cursor_hide = 1;
172 int graphic_rotate = 0;
173 const char *watchdog;
174 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
175 int nb_option_roms;
176 int old_param = 0;
177 const char *qemu_name;
178 int alt_grab = 0;
179 int ctrl_grab = 0;
180 unsigned int nb_prom_envs = 0;
181 const char *prom_envs[MAX_PROM_ENVS];
182 int boot_menu;
183 bool boot_strict;
184 uint8_t *boot_splash_filedata;
185 size_t boot_splash_filedata_size;
186 uint8_t qemu_extra_params_fw[2];
187
188 int icount_align_option;
189
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
192 */
193 QemuUUID qemu_uuid;
194 bool qemu_uuid_set;
195
196 static NotifierList exit_notifiers =
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
198
199 static NotifierList machine_init_done_notifiers =
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
201
202 bool xen_allowed;
203 uint32_t xen_domid;
204 enum xen_mode xen_mode = XEN_EMULATE;
205 bool xen_domid_restrict;
206
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_virtcon = 1;
211 static int default_monitor = 1;
212 static int default_floppy = 1;
213 static int default_cdrom = 1;
214 static int default_sdcard = 1;
215 static int default_vga = 1;
216 static int default_net = 1;
217
218 static struct {
219 const char *driver;
220 int *flag;
221 } default_list[] = {
222 { .driver = "isa-serial", .flag = &default_serial },
223 { .driver = "isa-parallel", .flag = &default_parallel },
224 { .driver = "isa-fdc", .flag = &default_floppy },
225 { .driver = "floppy", .flag = &default_floppy },
226 { .driver = "ide-cd", .flag = &default_cdrom },
227 { .driver = "ide-hd", .flag = &default_cdrom },
228 { .driver = "ide-drive", .flag = &default_cdrom },
229 { .driver = "scsi-cd", .flag = &default_cdrom },
230 { .driver = "scsi-hd", .flag = &default_cdrom },
231 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
232 { .driver = "virtio-serial", .flag = &default_virtcon },
233 { .driver = "VGA", .flag = &default_vga },
234 { .driver = "isa-vga", .flag = &default_vga },
235 { .driver = "cirrus-vga", .flag = &default_vga },
236 { .driver = "isa-cirrus-vga", .flag = &default_vga },
237 { .driver = "vmware-svga", .flag = &default_vga },
238 { .driver = "qxl-vga", .flag = &default_vga },
239 { .driver = "virtio-vga", .flag = &default_vga },
240 };
241
242 static QemuOptsList qemu_rtc_opts = {
243 .name = "rtc",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
245 .desc = {
246 {
247 .name = "base",
248 .type = QEMU_OPT_STRING,
249 },{
250 .name = "clock",
251 .type = QEMU_OPT_STRING,
252 },{
253 .name = "driftfix",
254 .type = QEMU_OPT_STRING,
255 },
256 { /* end of list */ }
257 },
258 };
259
260 static QemuOptsList qemu_option_rom_opts = {
261 .name = "option-rom",
262 .implied_opt_name = "romfile",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
264 .desc = {
265 {
266 .name = "bootindex",
267 .type = QEMU_OPT_NUMBER,
268 }, {
269 .name = "romfile",
270 .type = QEMU_OPT_STRING,
271 },
272 { /* end of list */ }
273 },
274 };
275
276 static QemuOptsList qemu_machine_opts = {
277 .name = "machine",
278 .implied_opt_name = "type",
279 .merge_lists = true,
280 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
281 .desc = {
282 /*
283 * no elements => accept any
284 * sanity checking will happen later
285 * when setting machine properties
286 */
287 { }
288 },
289 };
290
291 static QemuOptsList qemu_accel_opts = {
292 .name = "accel",
293 .implied_opt_name = "accel",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
295 .merge_lists = true,
296 .desc = {
297 {
298 .name = "accel",
299 .type = QEMU_OPT_STRING,
300 .help = "Select the type of accelerator",
301 },
302 {
303 .name = "thread",
304 .type = QEMU_OPT_STRING,
305 .help = "Enable/disable multi-threaded TCG",
306 },
307 { /* end of list */ }
308 },
309 };
310
311 static QemuOptsList qemu_boot_opts = {
312 .name = "boot-opts",
313 .implied_opt_name = "order",
314 .merge_lists = true,
315 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
316 .desc = {
317 {
318 .name = "order",
319 .type = QEMU_OPT_STRING,
320 }, {
321 .name = "once",
322 .type = QEMU_OPT_STRING,
323 }, {
324 .name = "menu",
325 .type = QEMU_OPT_BOOL,
326 }, {
327 .name = "splash",
328 .type = QEMU_OPT_STRING,
329 }, {
330 .name = "splash-time",
331 .type = QEMU_OPT_STRING,
332 }, {
333 .name = "reboot-timeout",
334 .type = QEMU_OPT_STRING,
335 }, {
336 .name = "strict",
337 .type = QEMU_OPT_BOOL,
338 },
339 { /*End of list */ }
340 },
341 };
342
343 static QemuOptsList qemu_add_fd_opts = {
344 .name = "add-fd",
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
346 .desc = {
347 {
348 .name = "fd",
349 .type = QEMU_OPT_NUMBER,
350 .help = "file descriptor of which a duplicate is added to fd set",
351 },{
352 .name = "set",
353 .type = QEMU_OPT_NUMBER,
354 .help = "ID of the fd set to add fd to",
355 },{
356 .name = "opaque",
357 .type = QEMU_OPT_STRING,
358 .help = "free-form string used to describe fd",
359 },
360 { /* end of list */ }
361 },
362 };
363
364 static QemuOptsList qemu_object_opts = {
365 .name = "object",
366 .implied_opt_name = "qom-type",
367 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
368 .desc = {
369 { }
370 },
371 };
372
373 static QemuOptsList qemu_tpmdev_opts = {
374 .name = "tpmdev",
375 .implied_opt_name = "type",
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
377 .desc = {
378 /* options are defined in the TPM backends */
379 { /* end of list */ }
380 },
381 };
382
383 static QemuOptsList qemu_realtime_opts = {
384 .name = "realtime",
385 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
386 .desc = {
387 {
388 .name = "mlock",
389 .type = QEMU_OPT_BOOL,
390 },
391 { /* end of list */ }
392 },
393 };
394
395 static QemuOptsList qemu_overcommit_opts = {
396 .name = "overcommit",
397 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
398 .desc = {
399 {
400 .name = "mem-lock",
401 .type = QEMU_OPT_BOOL,
402 },
403 {
404 .name = "cpu-pm",
405 .type = QEMU_OPT_BOOL,
406 },
407 { /* end of list */ }
408 },
409 };
410
411 static QemuOptsList qemu_msg_opts = {
412 .name = "msg",
413 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
414 .desc = {
415 {
416 .name = "timestamp",
417 .type = QEMU_OPT_BOOL,
418 },
419 { /* end of list */ }
420 },
421 };
422
423 static QemuOptsList qemu_name_opts = {
424 .name = "name",
425 .implied_opt_name = "guest",
426 .merge_lists = true,
427 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
428 .desc = {
429 {
430 .name = "guest",
431 .type = QEMU_OPT_STRING,
432 .help = "Sets the name of the guest.\n"
433 "This name will be displayed in the SDL window caption.\n"
434 "The name will also be used for the VNC server",
435 }, {
436 .name = "process",
437 .type = QEMU_OPT_STRING,
438 .help = "Sets the name of the QEMU process, as shown in top etc",
439 }, {
440 .name = "debug-threads",
441 .type = QEMU_OPT_BOOL,
442 .help = "When enabled, name the individual threads; defaults off.\n"
443 "NOTE: The thread names are for debugging and not a\n"
444 "stable API.",
445 },
446 { /* End of list */ }
447 },
448 };
449
450 static QemuOptsList qemu_mem_opts = {
451 .name = "memory",
452 .implied_opt_name = "size",
453 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
454 .merge_lists = true,
455 .desc = {
456 {
457 .name = "size",
458 .type = QEMU_OPT_SIZE,
459 },
460 {
461 .name = "slots",
462 .type = QEMU_OPT_NUMBER,
463 },
464 {
465 .name = "maxmem",
466 .type = QEMU_OPT_SIZE,
467 },
468 { /* end of list */ }
469 },
470 };
471
472 static QemuOptsList qemu_icount_opts = {
473 .name = "icount",
474 .implied_opt_name = "shift",
475 .merge_lists = true,
476 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
477 .desc = {
478 {
479 .name = "shift",
480 .type = QEMU_OPT_STRING,
481 }, {
482 .name = "align",
483 .type = QEMU_OPT_BOOL,
484 }, {
485 .name = "sleep",
486 .type = QEMU_OPT_BOOL,
487 }, {
488 .name = "rr",
489 .type = QEMU_OPT_STRING,
490 }, {
491 .name = "rrfile",
492 .type = QEMU_OPT_STRING,
493 }, {
494 .name = "rrsnapshot",
495 .type = QEMU_OPT_STRING,
496 },
497 { /* end of list */ }
498 },
499 };
500
501 static QemuOptsList qemu_semihosting_config_opts = {
502 .name = "semihosting-config",
503 .implied_opt_name = "enable",
504 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
505 .desc = {
506 {
507 .name = "enable",
508 .type = QEMU_OPT_BOOL,
509 }, {
510 .name = "target",
511 .type = QEMU_OPT_STRING,
512 }, {
513 .name = "arg",
514 .type = QEMU_OPT_STRING,
515 },
516 { /* end of list */ }
517 },
518 };
519
520 static QemuOptsList qemu_fw_cfg_opts = {
521 .name = "fw_cfg",
522 .implied_opt_name = "name",
523 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
524 .desc = {
525 {
526 .name = "name",
527 .type = QEMU_OPT_STRING,
528 .help = "Sets the fw_cfg name of the blob to be inserted",
529 }, {
530 .name = "file",
531 .type = QEMU_OPT_STRING,
532 .help = "Sets the name of the file from which\n"
533 "the fw_cfg blob will be loaded",
534 }, {
535 .name = "string",
536 .type = QEMU_OPT_STRING,
537 .help = "Sets content of the blob to be inserted from a string",
538 },
539 { /* end of list */ }
540 },
541 };
542
543 /**
544 * Get machine options
545 *
546 * Returns: machine options (never null).
547 */
548 QemuOpts *qemu_get_machine_opts(void)
549 {
550 return qemu_find_opts_singleton("machine");
551 }
552
553 const char *qemu_get_vm_name(void)
554 {
555 return qemu_name;
556 }
557
558 static void res_free(void)
559 {
560 g_free(boot_splash_filedata);
561 boot_splash_filedata = NULL;
562 }
563
564 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
565 {
566 const char *driver = qemu_opt_get(opts, "driver");
567 int i;
568
569 if (!driver)
570 return 0;
571 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
572 if (strcmp(default_list[i].driver, driver) != 0)
573 continue;
574 *(default_list[i].flag) = 0;
575 }
576 return 0;
577 }
578
579 /***********************************************************/
580 /* QEMU state */
581
582 static RunState current_run_state = RUN_STATE_PRECONFIG;
583
584 /* We use RUN_STATE__MAX but any invalid value will do */
585 static RunState vmstop_requested = RUN_STATE__MAX;
586 static QemuMutex vmstop_lock;
587
588 typedef struct {
589 RunState from;
590 RunState to;
591 } RunStateTransition;
592
593 static const RunStateTransition runstate_transitions_def[] = {
594 /* from -> to */
595 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
596 /* Early switch to inmigrate state to allow -incoming CLI option work
597 * as it used to. TODO: delay actual switching to inmigrate state to
598 * the point after machine is built and remove this hack.
599 */
600 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
601
602 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
603 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
604 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
605
606 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
607 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
608 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
609 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
610 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
611 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
612 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
613 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
615 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
616 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
617 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
618
619 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
620 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
622
623 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
624 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
625 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
626
627 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
628 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
630 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
631 { RUN_STATE_PAUSED, RUN_STATE_COLO},
632
633 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
634 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
636
637 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
638 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
640
641 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
642 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
646
647 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
648 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
649
650 { RUN_STATE_COLO, RUN_STATE_RUNNING },
651
652 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
653 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
654 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
655 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
656 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
657 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
658 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
659 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
660 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
661 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
662 { RUN_STATE_RUNNING, RUN_STATE_COLO},
663
664 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
665
666 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
667 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
668 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
669
670 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
671 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
672 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
673 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
674 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
675 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
676
677 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
678 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
679 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
680 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
681
682 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
683 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
685
686 { RUN_STATE__MAX, RUN_STATE__MAX },
687 };
688
689 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
690
691 bool runstate_check(RunState state)
692 {
693 return current_run_state == state;
694 }
695
696 bool runstate_store(char *str, size_t size)
697 {
698 const char *state = RunState_str(current_run_state);
699 size_t len = strlen(state) + 1;
700
701 if (len > size) {
702 return false;
703 }
704 memcpy(str, state, len);
705 return true;
706 }
707
708 static void runstate_init(void)
709 {
710 const RunStateTransition *p;
711
712 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
713 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
714 runstate_valid_transitions[p->from][p->to] = true;
715 }
716
717 qemu_mutex_init(&vmstop_lock);
718 }
719
720 /* This function will abort() on invalid state transitions */
721 void runstate_set(RunState new_state)
722 {
723 assert(new_state < RUN_STATE__MAX);
724
725 if (current_run_state == new_state) {
726 return;
727 }
728
729 if (!runstate_valid_transitions[current_run_state][new_state]) {
730 error_report("invalid runstate transition: '%s' -> '%s'",
731 RunState_str(current_run_state),
732 RunState_str(new_state));
733 abort();
734 }
735 trace_runstate_set(new_state);
736 current_run_state = new_state;
737 }
738
739 int runstate_is_running(void)
740 {
741 return runstate_check(RUN_STATE_RUNNING);
742 }
743
744 bool runstate_needs_reset(void)
745 {
746 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
747 runstate_check(RUN_STATE_SHUTDOWN);
748 }
749
750 StatusInfo *qmp_query_status(Error **errp)
751 {
752 StatusInfo *info = g_malloc0(sizeof(*info));
753
754 info->running = runstate_is_running();
755 info->singlestep = singlestep;
756 info->status = current_run_state;
757
758 return info;
759 }
760
761 bool qemu_vmstop_requested(RunState *r)
762 {
763 qemu_mutex_lock(&vmstop_lock);
764 *r = vmstop_requested;
765 vmstop_requested = RUN_STATE__MAX;
766 qemu_mutex_unlock(&vmstop_lock);
767 return *r < RUN_STATE__MAX;
768 }
769
770 void qemu_system_vmstop_request_prepare(void)
771 {
772 qemu_mutex_lock(&vmstop_lock);
773 }
774
775 void qemu_system_vmstop_request(RunState state)
776 {
777 vmstop_requested = state;
778 qemu_mutex_unlock(&vmstop_lock);
779 qemu_notify_event();
780 }
781
782 /***********************************************************/
783 /* real time host monotonic timer */
784
785 static time_t qemu_time(void)
786 {
787 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
788 }
789
790 /***********************************************************/
791 /* host time/date access */
792 void qemu_get_timedate(struct tm *tm, int offset)
793 {
794 time_t ti = qemu_time();
795
796 ti += offset;
797 if (rtc_date_offset == -1) {
798 if (rtc_utc)
799 gmtime_r(&ti, tm);
800 else
801 localtime_r(&ti, tm);
802 } else {
803 ti -= rtc_date_offset;
804 gmtime_r(&ti, tm);
805 }
806 }
807
808 int qemu_timedate_diff(struct tm *tm)
809 {
810 time_t seconds;
811
812 if (rtc_date_offset == -1)
813 if (rtc_utc)
814 seconds = mktimegm(tm);
815 else {
816 struct tm tmp = *tm;
817 tmp.tm_isdst = -1; /* use timezone to figure it out */
818 seconds = mktime(&tmp);
819 }
820 else
821 seconds = mktimegm(tm) + rtc_date_offset;
822
823 return seconds - qemu_time();
824 }
825
826 static void configure_rtc_date_offset(const char *startdate)
827 {
828 time_t rtc_start_date;
829 struct tm tm;
830
831 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
832 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
833 /* OK */
834 } else if (sscanf(startdate, "%d-%d-%d",
835 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
836 tm.tm_hour = 0;
837 tm.tm_min = 0;
838 tm.tm_sec = 0;
839 } else {
840 goto date_fail;
841 }
842 tm.tm_year -= 1900;
843 tm.tm_mon--;
844 rtc_start_date = mktimegm(&tm);
845 if (rtc_start_date == -1) {
846 date_fail:
847 error_report("invalid date format");
848 error_printf("valid formats: "
849 "'2006-06-17T16:01:21' or '2006-06-17'\n");
850 exit(1);
851 }
852 rtc_date_offset = qemu_time() - rtc_start_date;
853 }
854
855 static void configure_rtc(QemuOpts *opts)
856 {
857 const char *value;
858
859 value = qemu_opt_get(opts, "base");
860 if (value) {
861 if (!strcmp(value, "utc")) {
862 rtc_utc = 1;
863 } else if (!strcmp(value, "localtime")) {
864 Error *blocker = NULL;
865 rtc_utc = 0;
866 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
867 "-rtc base=localtime");
868 replay_add_blocker(blocker);
869 } else {
870 configure_rtc_date_offset(value);
871 }
872 }
873 value = qemu_opt_get(opts, "clock");
874 if (value) {
875 if (!strcmp(value, "host")) {
876 rtc_clock = QEMU_CLOCK_HOST;
877 } else if (!strcmp(value, "rt")) {
878 rtc_clock = QEMU_CLOCK_REALTIME;
879 } else if (!strcmp(value, "vm")) {
880 rtc_clock = QEMU_CLOCK_VIRTUAL;
881 } else {
882 error_report("invalid option value '%s'", value);
883 exit(1);
884 }
885 }
886 value = qemu_opt_get(opts, "driftfix");
887 if (value) {
888 if (!strcmp(value, "slew")) {
889 static GlobalProperty slew_lost_ticks = {
890 .driver = "mc146818rtc",
891 .property = "lost_tick_policy",
892 .value = "slew",
893 };
894
895 qdev_prop_register_global(&slew_lost_ticks);
896 } else if (!strcmp(value, "none")) {
897 /* discard is default */
898 } else {
899 error_report("invalid option value '%s'", value);
900 exit(1);
901 }
902 }
903 }
904
905 /***********************************************************/
906 /* Bluetooth support */
907 static int nb_hcis;
908 static int cur_hci;
909 static struct HCIInfo *hci_table[MAX_NICS];
910
911 struct HCIInfo *qemu_next_hci(void)
912 {
913 if (cur_hci == nb_hcis)
914 return &null_hci;
915
916 return hci_table[cur_hci++];
917 }
918
919 static int bt_hci_parse(const char *str)
920 {
921 struct HCIInfo *hci;
922 bdaddr_t bdaddr;
923
924 if (nb_hcis >= MAX_NICS) {
925 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
926 return -1;
927 }
928
929 hci = hci_init(str);
930 if (!hci)
931 return -1;
932
933 bdaddr.b[0] = 0x52;
934 bdaddr.b[1] = 0x54;
935 bdaddr.b[2] = 0x00;
936 bdaddr.b[3] = 0x12;
937 bdaddr.b[4] = 0x34;
938 bdaddr.b[5] = 0x56 + nb_hcis;
939 hci->bdaddr_set(hci, bdaddr.b);
940
941 hci_table[nb_hcis++] = hci;
942
943 return 0;
944 }
945
946 static void bt_vhci_add(int vlan_id)
947 {
948 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
949
950 if (!vlan->slave)
951 warn_report("adding a VHCI to an empty scatternet %i",
952 vlan_id);
953
954 bt_vhci_init(bt_new_hci(vlan));
955 }
956
957 static struct bt_device_s *bt_device_add(const char *opt)
958 {
959 struct bt_scatternet_s *vlan;
960 int vlan_id = 0;
961 char *endp = strstr(opt, ",vlan=");
962 int len = (endp ? endp - opt : strlen(opt)) + 1;
963 char devname[10];
964
965 pstrcpy(devname, MIN(sizeof(devname), len), opt);
966
967 if (endp) {
968 vlan_id = strtol(endp + 6, &endp, 0);
969 if (*endp) {
970 error_report("unrecognised bluetooth vlan Id");
971 return 0;
972 }
973 }
974
975 vlan = qemu_find_bt_vlan(vlan_id);
976
977 if (!vlan->slave)
978 warn_report("adding a slave device to an empty scatternet %i",
979 vlan_id);
980
981 if (!strcmp(devname, "keyboard"))
982 return bt_keyboard_init(vlan);
983
984 error_report("unsupported bluetooth device '%s'", devname);
985 return 0;
986 }
987
988 static int bt_parse(const char *opt)
989 {
990 const char *endp, *p;
991 int vlan;
992
993 if (strstart(opt, "hci", &endp)) {
994 if (!*endp || *endp == ',') {
995 if (*endp)
996 if (!strstart(endp, ",vlan=", 0))
997 opt = endp + 1;
998
999 return bt_hci_parse(opt);
1000 }
1001 } else if (strstart(opt, "vhci", &endp)) {
1002 if (!*endp || *endp == ',') {
1003 if (*endp) {
1004 if (strstart(endp, ",vlan=", &p)) {
1005 vlan = strtol(p, (char **) &endp, 0);
1006 if (*endp) {
1007 error_report("bad scatternet '%s'", p);
1008 return 1;
1009 }
1010 } else {
1011 error_report("bad parameter '%s'", endp + 1);
1012 return 1;
1013 }
1014 } else
1015 vlan = 0;
1016
1017 bt_vhci_add(vlan);
1018 return 0;
1019 }
1020 } else if (strstart(opt, "device:", &endp))
1021 return !bt_device_add(endp);
1022
1023 error_report("bad bluetooth parameter '%s'", opt);
1024 return 1;
1025 }
1026
1027 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1028 {
1029 const char *proc_name;
1030
1031 if (qemu_opt_get(opts, "debug-threads")) {
1032 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1033 }
1034 qemu_name = qemu_opt_get(opts, "guest");
1035
1036 proc_name = qemu_opt_get(opts, "process");
1037 if (proc_name) {
1038 os_set_proc_name(proc_name);
1039 }
1040
1041 return 0;
1042 }
1043
1044 bool defaults_enabled(void)
1045 {
1046 return has_defaults;
1047 }
1048
1049 #ifndef _WIN32
1050 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1051 {
1052 int fd, dupfd, flags;
1053 int64_t fdset_id;
1054 const char *fd_opaque = NULL;
1055 AddfdInfo *fdinfo;
1056
1057 fd = qemu_opt_get_number(opts, "fd", -1);
1058 fdset_id = qemu_opt_get_number(opts, "set", -1);
1059 fd_opaque = qemu_opt_get(opts, "opaque");
1060
1061 if (fd < 0) {
1062 error_setg(errp, "fd option is required and must be non-negative");
1063 return -1;
1064 }
1065
1066 if (fd <= STDERR_FILENO) {
1067 error_setg(errp, "fd cannot be a standard I/O stream");
1068 return -1;
1069 }
1070
1071 /*
1072 * All fds inherited across exec() necessarily have FD_CLOEXEC
1073 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1074 */
1075 flags = fcntl(fd, F_GETFD);
1076 if (flags == -1 || (flags & FD_CLOEXEC)) {
1077 error_setg(errp, "fd is not valid or already in use");
1078 return -1;
1079 }
1080
1081 if (fdset_id < 0) {
1082 error_setg(errp, "set option is required and must be non-negative");
1083 return -1;
1084 }
1085
1086 #ifdef F_DUPFD_CLOEXEC
1087 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1088 #else
1089 dupfd = dup(fd);
1090 if (dupfd != -1) {
1091 qemu_set_cloexec(dupfd);
1092 }
1093 #endif
1094 if (dupfd == -1) {
1095 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1096 return -1;
1097 }
1098
1099 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1100 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1101 &error_abort);
1102 g_free(fdinfo);
1103
1104 return 0;
1105 }
1106
1107 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1108 {
1109 int fd;
1110
1111 fd = qemu_opt_get_number(opts, "fd", -1);
1112 close(fd);
1113
1114 return 0;
1115 }
1116 #endif
1117
1118 /***********************************************************/
1119 /* QEMU Block devices */
1120
1121 #define HD_OPTS "media=disk"
1122 #define CDROM_OPTS "media=cdrom"
1123 #define FD_OPTS ""
1124 #define PFLASH_OPTS ""
1125 #define MTD_OPTS ""
1126 #define SD_OPTS ""
1127
1128 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1129 {
1130 BlockInterfaceType *block_default_type = opaque;
1131
1132 return drive_new(opts, *block_default_type, errp) == NULL;
1133 }
1134
1135 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1136 {
1137 if (qemu_opt_get(opts, "snapshot") == NULL) {
1138 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1139 }
1140 return 0;
1141 }
1142
1143 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1144 int index, const char *optstr)
1145 {
1146 QemuOpts *opts;
1147 DriveInfo *dinfo;
1148
1149 if (!enable || drive_get_by_index(type, index)) {
1150 return;
1151 }
1152
1153 opts = drive_add(type, index, NULL, optstr);
1154 if (snapshot) {
1155 drive_enable_snapshot(NULL, opts, NULL);
1156 }
1157
1158 dinfo = drive_new(opts, type, &error_abort);
1159 dinfo->is_default = true;
1160
1161 }
1162
1163 static QemuOptsList qemu_smp_opts = {
1164 .name = "smp-opts",
1165 .implied_opt_name = "cpus",
1166 .merge_lists = true,
1167 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1168 .desc = {
1169 {
1170 .name = "cpus",
1171 .type = QEMU_OPT_NUMBER,
1172 }, {
1173 .name = "sockets",
1174 .type = QEMU_OPT_NUMBER,
1175 }, {
1176 .name = "cores",
1177 .type = QEMU_OPT_NUMBER,
1178 }, {
1179 .name = "threads",
1180 .type = QEMU_OPT_NUMBER,
1181 }, {
1182 .name = "maxcpus",
1183 .type = QEMU_OPT_NUMBER,
1184 },
1185 { /*End of list */ }
1186 },
1187 };
1188
1189 static void smp_parse(QemuOpts *opts)
1190 {
1191 if (opts) {
1192 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1193 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1194 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1195 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1196
1197 /* compute missing values, prefer sockets over cores over threads */
1198 if (cpus == 0 || sockets == 0) {
1199 sockets = sockets > 0 ? sockets : 1;
1200 cores = cores > 0 ? cores : 1;
1201 threads = threads > 0 ? threads : 1;
1202 if (cpus == 0) {
1203 cpus = cores * threads * sockets;
1204 }
1205 } else if (cores == 0) {
1206 threads = threads > 0 ? threads : 1;
1207 cores = cpus / (sockets * threads);
1208 cores = cores > 0 ? cores : 1;
1209 } else if (threads == 0) {
1210 threads = cpus / (cores * sockets);
1211 threads = threads > 0 ? threads : 1;
1212 } else if (sockets * cores * threads < cpus) {
1213 error_report("cpu topology: "
1214 "sockets (%u) * cores (%u) * threads (%u) < "
1215 "smp_cpus (%u)",
1216 sockets, cores, threads, cpus);
1217 exit(1);
1218 }
1219
1220 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1221
1222 if (max_cpus < cpus) {
1223 error_report("maxcpus must be equal to or greater than smp");
1224 exit(1);
1225 }
1226
1227 if (sockets * cores * threads > max_cpus) {
1228 error_report("cpu topology: "
1229 "sockets (%u) * cores (%u) * threads (%u) > "
1230 "maxcpus (%u)",
1231 sockets, cores, threads, max_cpus);
1232 exit(1);
1233 }
1234
1235 smp_cpus = cpus;
1236 smp_cores = cores;
1237 smp_threads = threads;
1238 }
1239
1240 if (smp_cpus > 1) {
1241 Error *blocker = NULL;
1242 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1243 replay_add_blocker(blocker);
1244 }
1245 }
1246
1247 static void realtime_init(void)
1248 {
1249 if (enable_mlock) {
1250 if (os_mlock() < 0) {
1251 error_report("locking memory failed");
1252 exit(1);
1253 }
1254 }
1255 }
1256
1257
1258 static void configure_msg(QemuOpts *opts)
1259 {
1260 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1261 }
1262
1263 /***********************************************************/
1264 /* Semihosting */
1265
1266 typedef struct SemihostingConfig {
1267 bool enabled;
1268 SemihostingTarget target;
1269 const char **argv;
1270 int argc;
1271 const char *cmdline; /* concatenated argv */
1272 } SemihostingConfig;
1273
1274 static SemihostingConfig semihosting;
1275
1276 bool semihosting_enabled(void)
1277 {
1278 return semihosting.enabled;
1279 }
1280
1281 SemihostingTarget semihosting_get_target(void)
1282 {
1283 return semihosting.target;
1284 }
1285
1286 const char *semihosting_get_arg(int i)
1287 {
1288 if (i >= semihosting.argc) {
1289 return NULL;
1290 }
1291 return semihosting.argv[i];
1292 }
1293
1294 int semihosting_get_argc(void)
1295 {
1296 return semihosting.argc;
1297 }
1298
1299 const char *semihosting_get_cmdline(void)
1300 {
1301 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1302 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1303 }
1304 return semihosting.cmdline;
1305 }
1306
1307 static int add_semihosting_arg(void *opaque,
1308 const char *name, const char *val,
1309 Error **errp)
1310 {
1311 SemihostingConfig *s = opaque;
1312 if (strcmp(name, "arg") == 0) {
1313 s->argc++;
1314 /* one extra element as g_strjoinv() expects NULL-terminated array */
1315 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1316 s->argv[s->argc - 1] = val;
1317 s->argv[s->argc] = NULL;
1318 }
1319 return 0;
1320 }
1321
1322 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1323 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1324 {
1325 char *cmd_token;
1326
1327 /* argv[0] */
1328 add_semihosting_arg(&semihosting, "arg", file, NULL);
1329
1330 /* split -append and initialize argv[1..n] */
1331 cmd_token = strtok(g_strdup(cmd), " ");
1332 while (cmd_token) {
1333 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1334 cmd_token = strtok(NULL, " ");
1335 }
1336 }
1337
1338 /* Now we still need this for compatibility with XEN. */
1339 bool has_igd_gfx_passthru;
1340 static void igd_gfx_passthru(void)
1341 {
1342 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1343 }
1344
1345 /***********************************************************/
1346 /* USB devices */
1347
1348 static int usb_device_add(const char *devname)
1349 {
1350 USBDevice *dev = NULL;
1351
1352 if (!machine_usb(current_machine)) {
1353 return -1;
1354 }
1355
1356 dev = usbdevice_create(devname);
1357 if (!dev)
1358 return -1;
1359
1360 return 0;
1361 }
1362
1363 static int usb_parse(const char *cmdline)
1364 {
1365 int r;
1366 r = usb_device_add(cmdline);
1367 if (r < 0) {
1368 error_report("could not add USB device '%s'", cmdline);
1369 }
1370 return r;
1371 }
1372
1373 /***********************************************************/
1374 /* machine registration */
1375
1376 MachineState *current_machine;
1377
1378 static MachineClass *find_machine(const char *name)
1379 {
1380 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1381 MachineClass *mc = NULL;
1382
1383 for (el = machines; el; el = el->next) {
1384 MachineClass *temp = el->data;
1385
1386 if (!strcmp(temp->name, name)) {
1387 mc = temp;
1388 break;
1389 }
1390 if (temp->alias &&
1391 !strcmp(temp->alias, name)) {
1392 mc = temp;
1393 break;
1394 }
1395 }
1396
1397 g_slist_free(machines);
1398 return mc;
1399 }
1400
1401 MachineClass *find_default_machine(void)
1402 {
1403 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1404 MachineClass *mc = NULL;
1405
1406 for (el = machines; el; el = el->next) {
1407 MachineClass *temp = el->data;
1408
1409 if (temp->is_default) {
1410 mc = temp;
1411 break;
1412 }
1413 }
1414
1415 g_slist_free(machines);
1416 return mc;
1417 }
1418
1419 MachineInfoList *qmp_query_machines(Error **errp)
1420 {
1421 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1422 MachineInfoList *mach_list = NULL;
1423
1424 for (el = machines; el; el = el->next) {
1425 MachineClass *mc = el->data;
1426 MachineInfoList *entry;
1427 MachineInfo *info;
1428
1429 info = g_malloc0(sizeof(*info));
1430 if (mc->is_default) {
1431 info->has_is_default = true;
1432 info->is_default = true;
1433 }
1434
1435 if (mc->alias) {
1436 info->has_alias = true;
1437 info->alias = g_strdup(mc->alias);
1438 }
1439
1440 info->name = g_strdup(mc->name);
1441 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1442 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1443
1444 entry = g_malloc0(sizeof(*entry));
1445 entry->value = info;
1446 entry->next = mach_list;
1447 mach_list = entry;
1448 }
1449
1450 g_slist_free(machines);
1451 return mach_list;
1452 }
1453
1454 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1455 {
1456 ObjectProperty *prop;
1457 ObjectPropertyIterator iter;
1458
1459 if (!qemu_opt_has_help_opt(opts)) {
1460 return 0;
1461 }
1462
1463 object_property_iter_init(&iter, OBJECT(machine));
1464 while ((prop = object_property_iter_next(&iter))) {
1465 if (!prop->set) {
1466 continue;
1467 }
1468
1469 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1470 prop->name, prop->type);
1471 if (prop->description) {
1472 error_printf(" (%s)\n", prop->description);
1473 } else {
1474 error_printf("\n");
1475 }
1476 }
1477
1478 return 1;
1479 }
1480
1481 /***********************************************************/
1482 /* main execution loop */
1483
1484 struct vm_change_state_entry {
1485 VMChangeStateHandler *cb;
1486 void *opaque;
1487 QLIST_ENTRY (vm_change_state_entry) entries;
1488 };
1489
1490 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1491
1492 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1493 void *opaque)
1494 {
1495 VMChangeStateEntry *e;
1496
1497 e = g_malloc0(sizeof (*e));
1498
1499 e->cb = cb;
1500 e->opaque = opaque;
1501 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1502 return e;
1503 }
1504
1505 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1506 {
1507 QLIST_REMOVE (e, entries);
1508 g_free (e);
1509 }
1510
1511 void vm_state_notify(int running, RunState state)
1512 {
1513 VMChangeStateEntry *e, *next;
1514
1515 trace_vm_state_notify(running, state);
1516
1517 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1518 e->cb(e->opaque, running, state);
1519 }
1520 }
1521
1522 static ShutdownCause reset_requested;
1523 static ShutdownCause shutdown_requested;
1524 static int shutdown_signal;
1525 static pid_t shutdown_pid;
1526 static int powerdown_requested;
1527 static int debug_requested;
1528 static int suspend_requested;
1529 static bool preconfig_exit_requested = true;
1530 static WakeupReason wakeup_reason;
1531 static NotifierList powerdown_notifiers =
1532 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1533 static NotifierList suspend_notifiers =
1534 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1535 static NotifierList wakeup_notifiers =
1536 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1537 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1538
1539 ShutdownCause qemu_shutdown_requested_get(void)
1540 {
1541 return shutdown_requested;
1542 }
1543
1544 ShutdownCause qemu_reset_requested_get(void)
1545 {
1546 return reset_requested;
1547 }
1548
1549 static int qemu_shutdown_requested(void)
1550 {
1551 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1552 }
1553
1554 static void qemu_kill_report(void)
1555 {
1556 if (!qtest_driver() && shutdown_signal) {
1557 if (shutdown_pid == 0) {
1558 /* This happens for eg ^C at the terminal, so it's worth
1559 * avoiding printing an odd message in that case.
1560 */
1561 error_report("terminating on signal %d", shutdown_signal);
1562 } else {
1563 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1564
1565 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1566 shutdown_signal, shutdown_pid,
1567 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1568 g_free(shutdown_cmd);
1569 }
1570 shutdown_signal = 0;
1571 }
1572 }
1573
1574 static ShutdownCause qemu_reset_requested(void)
1575 {
1576 ShutdownCause r = reset_requested;
1577
1578 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1579 reset_requested = SHUTDOWN_CAUSE_NONE;
1580 return r;
1581 }
1582 return SHUTDOWN_CAUSE_NONE;
1583 }
1584
1585 static int qemu_suspend_requested(void)
1586 {
1587 int r = suspend_requested;
1588 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1589 suspend_requested = 0;
1590 return r;
1591 }
1592 return false;
1593 }
1594
1595 static WakeupReason qemu_wakeup_requested(void)
1596 {
1597 return wakeup_reason;
1598 }
1599
1600 static int qemu_powerdown_requested(void)
1601 {
1602 int r = powerdown_requested;
1603 powerdown_requested = 0;
1604 return r;
1605 }
1606
1607 static int qemu_debug_requested(void)
1608 {
1609 int r = debug_requested;
1610 debug_requested = 0;
1611 return r;
1612 }
1613
1614 void qemu_exit_preconfig_request(void)
1615 {
1616 preconfig_exit_requested = true;
1617 }
1618
1619 /*
1620 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1621 */
1622 void qemu_system_reset(ShutdownCause reason)
1623 {
1624 MachineClass *mc;
1625
1626 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1627
1628 cpu_synchronize_all_states();
1629
1630 if (mc && mc->reset) {
1631 mc->reset();
1632 } else {
1633 qemu_devices_reset();
1634 }
1635 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1636 qapi_event_send_reset(shutdown_caused_by_guest(reason));
1637 }
1638 cpu_synchronize_all_post_reset();
1639 }
1640
1641 void qemu_system_guest_panicked(GuestPanicInformation *info)
1642 {
1643 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1644
1645 if (current_cpu) {
1646 current_cpu->crash_occurred = true;
1647 }
1648 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1649 !!info, info);
1650 vm_stop(RUN_STATE_GUEST_PANICKED);
1651 if (!no_shutdown) {
1652 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1653 !!info, info);
1654 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1655 }
1656
1657 if (info) {
1658 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1659 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1660 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1661 info->u.hyper_v.arg1,
1662 info->u.hyper_v.arg2,
1663 info->u.hyper_v.arg3,
1664 info->u.hyper_v.arg4,
1665 info->u.hyper_v.arg5);
1666 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1667 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1668 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1669 info->u.s390.core,
1670 S390CrashReason_str(info->u.s390.reason),
1671 info->u.s390.psw_mask,
1672 info->u.s390.psw_addr);
1673 }
1674 qapi_free_GuestPanicInformation(info);
1675 }
1676 }
1677
1678 void qemu_system_reset_request(ShutdownCause reason)
1679 {
1680 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1681 shutdown_requested = reason;
1682 } else {
1683 reset_requested = reason;
1684 }
1685 cpu_stop_current();
1686 qemu_notify_event();
1687 }
1688
1689 static void qemu_system_suspend(void)
1690 {
1691 pause_all_vcpus();
1692 notifier_list_notify(&suspend_notifiers, NULL);
1693 runstate_set(RUN_STATE_SUSPENDED);
1694 qapi_event_send_suspend();
1695 }
1696
1697 void qemu_system_suspend_request(void)
1698 {
1699 if (runstate_check(RUN_STATE_SUSPENDED)) {
1700 return;
1701 }
1702 suspend_requested = 1;
1703 cpu_stop_current();
1704 qemu_notify_event();
1705 }
1706
1707 void qemu_register_suspend_notifier(Notifier *notifier)
1708 {
1709 notifier_list_add(&suspend_notifiers, notifier);
1710 }
1711
1712 void qemu_system_wakeup_request(WakeupReason reason)
1713 {
1714 trace_system_wakeup_request(reason);
1715
1716 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1717 return;
1718 }
1719 if (!(wakeup_reason_mask & (1 << reason))) {
1720 return;
1721 }
1722 runstate_set(RUN_STATE_RUNNING);
1723 wakeup_reason = reason;
1724 qemu_notify_event();
1725 }
1726
1727 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1728 {
1729 if (enabled) {
1730 wakeup_reason_mask |= (1 << reason);
1731 } else {
1732 wakeup_reason_mask &= ~(1 << reason);
1733 }
1734 }
1735
1736 void qemu_register_wakeup_notifier(Notifier *notifier)
1737 {
1738 notifier_list_add(&wakeup_notifiers, notifier);
1739 }
1740
1741 void qemu_system_killed(int signal, pid_t pid)
1742 {
1743 shutdown_signal = signal;
1744 shutdown_pid = pid;
1745 no_shutdown = 0;
1746
1747 /* Cannot call qemu_system_shutdown_request directly because
1748 * we are in a signal handler.
1749 */
1750 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1751 qemu_notify_event();
1752 }
1753
1754 void qemu_system_shutdown_request(ShutdownCause reason)
1755 {
1756 trace_qemu_system_shutdown_request(reason);
1757 replay_shutdown_request(reason);
1758 shutdown_requested = reason;
1759 qemu_notify_event();
1760 }
1761
1762 static void qemu_system_powerdown(void)
1763 {
1764 qapi_event_send_powerdown();
1765 notifier_list_notify(&powerdown_notifiers, NULL);
1766 }
1767
1768 void qemu_system_powerdown_request(void)
1769 {
1770 trace_qemu_system_powerdown_request();
1771 powerdown_requested = 1;
1772 qemu_notify_event();
1773 }
1774
1775 void qemu_register_powerdown_notifier(Notifier *notifier)
1776 {
1777 notifier_list_add(&powerdown_notifiers, notifier);
1778 }
1779
1780 void qemu_system_debug_request(void)
1781 {
1782 debug_requested = 1;
1783 qemu_notify_event();
1784 }
1785
1786 static bool main_loop_should_exit(void)
1787 {
1788 RunState r;
1789 ShutdownCause request;
1790
1791 if (preconfig_exit_requested) {
1792 if (runstate_check(RUN_STATE_PRECONFIG)) {
1793 runstate_set(RUN_STATE_PRELAUNCH);
1794 }
1795 preconfig_exit_requested = false;
1796 return true;
1797 }
1798 if (qemu_debug_requested()) {
1799 vm_stop(RUN_STATE_DEBUG);
1800 }
1801 if (qemu_suspend_requested()) {
1802 qemu_system_suspend();
1803 }
1804 request = qemu_shutdown_requested();
1805 if (request) {
1806 qemu_kill_report();
1807 qapi_event_send_shutdown(shutdown_caused_by_guest(request));
1808 if (no_shutdown) {
1809 vm_stop(RUN_STATE_SHUTDOWN);
1810 } else {
1811 return true;
1812 }
1813 }
1814 request = qemu_reset_requested();
1815 if (request) {
1816 pause_all_vcpus();
1817 qemu_system_reset(request);
1818 resume_all_vcpus();
1819 if (!runstate_check(RUN_STATE_RUNNING) &&
1820 !runstate_check(RUN_STATE_INMIGRATE)) {
1821 runstate_set(RUN_STATE_PRELAUNCH);
1822 }
1823 }
1824 if (qemu_wakeup_requested()) {
1825 pause_all_vcpus();
1826 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1827 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1828 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1829 resume_all_vcpus();
1830 qapi_event_send_wakeup();
1831 }
1832 if (qemu_powerdown_requested()) {
1833 qemu_system_powerdown();
1834 }
1835 if (qemu_vmstop_requested(&r)) {
1836 vm_stop(r);
1837 }
1838 return false;
1839 }
1840
1841 static void main_loop(void)
1842 {
1843 #ifdef CONFIG_PROFILER
1844 int64_t ti;
1845 #endif
1846 while (!main_loop_should_exit()) {
1847 #ifdef CONFIG_PROFILER
1848 ti = profile_getclock();
1849 #endif
1850 main_loop_wait(false);
1851 #ifdef CONFIG_PROFILER
1852 dev_time += profile_getclock() - ti;
1853 #endif
1854 }
1855 }
1856
1857 static void version(void)
1858 {
1859 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1860 QEMU_COPYRIGHT "\n");
1861 }
1862
1863 static void help(int exitcode)
1864 {
1865 version();
1866 printf("usage: %s [options] [disk_image]\n\n"
1867 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1868 error_get_progname());
1869
1870 #define QEMU_OPTIONS_GENERATE_HELP
1871 #include "qemu-options-wrapper.h"
1872
1873 printf("\nDuring emulation, the following keys are useful:\n"
1874 "ctrl-alt-f toggle full screen\n"
1875 "ctrl-alt-n switch to virtual console 'n'\n"
1876 "ctrl-alt toggle mouse and keyboard grab\n"
1877 "\n"
1878 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1879 "\n"
1880 QEMU_HELP_BOTTOM "\n");
1881
1882 exit(exitcode);
1883 }
1884
1885 #define HAS_ARG 0x0001
1886
1887 typedef struct QEMUOption {
1888 const char *name;
1889 int flags;
1890 int index;
1891 uint32_t arch_mask;
1892 } QEMUOption;
1893
1894 static const QEMUOption qemu_options[] = {
1895 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1896 #define QEMU_OPTIONS_GENERATE_OPTIONS
1897 #include "qemu-options-wrapper.h"
1898 { NULL },
1899 };
1900
1901 typedef struct VGAInterfaceInfo {
1902 const char *opt_name; /* option name */
1903 const char *name; /* human-readable name */
1904 /* Class names indicating that support is available.
1905 * If no class is specified, the interface is always available */
1906 const char *class_names[2];
1907 } VGAInterfaceInfo;
1908
1909 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1910 [VGA_NONE] = {
1911 .opt_name = "none",
1912 },
1913 [VGA_STD] = {
1914 .opt_name = "std",
1915 .name = "standard VGA",
1916 .class_names = { "VGA", "isa-vga" },
1917 },
1918 [VGA_CIRRUS] = {
1919 .opt_name = "cirrus",
1920 .name = "Cirrus VGA",
1921 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1922 },
1923 [VGA_VMWARE] = {
1924 .opt_name = "vmware",
1925 .name = "VMWare SVGA",
1926 .class_names = { "vmware-svga" },
1927 },
1928 [VGA_VIRTIO] = {
1929 .opt_name = "virtio",
1930 .name = "Virtio VGA",
1931 .class_names = { "virtio-vga" },
1932 },
1933 [VGA_QXL] = {
1934 .opt_name = "qxl",
1935 .name = "QXL VGA",
1936 .class_names = { "qxl-vga" },
1937 },
1938 [VGA_TCX] = {
1939 .opt_name = "tcx",
1940 .name = "TCX framebuffer",
1941 .class_names = { "SUNW,tcx" },
1942 },
1943 [VGA_CG3] = {
1944 .opt_name = "cg3",
1945 .name = "CG3 framebuffer",
1946 .class_names = { "cgthree" },
1947 },
1948 [VGA_XENFB] = {
1949 .opt_name = "xenfb",
1950 },
1951 };
1952
1953 static bool vga_interface_available(VGAInterfaceType t)
1954 {
1955 VGAInterfaceInfo *ti = &vga_interfaces[t];
1956
1957 assert(t < VGA_TYPE_MAX);
1958 return !ti->class_names[0] ||
1959 object_class_by_name(ti->class_names[0]) ||
1960 object_class_by_name(ti->class_names[1]);
1961 }
1962
1963 static void select_vgahw(const char *p)
1964 {
1965 const char *opts;
1966 int t;
1967
1968 assert(vga_interface_type == VGA_NONE);
1969 for (t = 0; t < VGA_TYPE_MAX; t++) {
1970 VGAInterfaceInfo *ti = &vga_interfaces[t];
1971 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1972 if (!vga_interface_available(t)) {
1973 error_report("%s not available", ti->name);
1974 exit(1);
1975 }
1976 vga_interface_type = t;
1977 break;
1978 }
1979 }
1980 if (t == VGA_TYPE_MAX) {
1981 invalid_vga:
1982 error_report("unknown vga type: %s", p);
1983 exit(1);
1984 }
1985 while (*opts) {
1986 const char *nextopt;
1987
1988 if (strstart(opts, ",retrace=", &nextopt)) {
1989 opts = nextopt;
1990 if (strstart(opts, "dumb", &nextopt))
1991 vga_retrace_method = VGA_RETRACE_DUMB;
1992 else if (strstart(opts, "precise", &nextopt))
1993 vga_retrace_method = VGA_RETRACE_PRECISE;
1994 else goto invalid_vga;
1995 } else goto invalid_vga;
1996 opts = nextopt;
1997 }
1998 }
1999
2000 static void parse_display_qapi(const char *optarg)
2001 {
2002 DisplayOptions *opts;
2003 Visitor *v;
2004
2005 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2006
2007 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2008 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2009
2010 qapi_free_DisplayOptions(opts);
2011 visit_free(v);
2012 }
2013
2014 static void parse_display(const char *p)
2015 {
2016 const char *opts;
2017
2018 if (strstart(p, "sdl", &opts)) {
2019 /*
2020 * sdl DisplayType needs hand-crafted parser instead of
2021 * parse_display_qapi() due to some options not in
2022 * DisplayOptions, specifically:
2023 * - frame
2024 * Already deprecated.
2025 * - ctrl_grab + alt_grab
2026 * Not clear yet what happens to them long-term. Should
2027 * replaced by something better or deprecated and dropped.
2028 */
2029 dpy.type = DISPLAY_TYPE_SDL;
2030 while (*opts) {
2031 const char *nextopt;
2032
2033 if (strstart(opts, ",frame=", &nextopt)) {
2034 g_printerr("The frame= sdl option is deprecated, and will be\n"
2035 "removed in a future release.\n");
2036 opts = nextopt;
2037 if (strstart(opts, "on", &nextopt)) {
2038 no_frame = 0;
2039 } else if (strstart(opts, "off", &nextopt)) {
2040 no_frame = 1;
2041 } else {
2042 goto invalid_sdl_args;
2043 }
2044 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2045 opts = nextopt;
2046 if (strstart(opts, "on", &nextopt)) {
2047 alt_grab = 1;
2048 } else if (strstart(opts, "off", &nextopt)) {
2049 alt_grab = 0;
2050 } else {
2051 goto invalid_sdl_args;
2052 }
2053 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2054 opts = nextopt;
2055 if (strstart(opts, "on", &nextopt)) {
2056 ctrl_grab = 1;
2057 } else if (strstart(opts, "off", &nextopt)) {
2058 ctrl_grab = 0;
2059 } else {
2060 goto invalid_sdl_args;
2061 }
2062 } else if (strstart(opts, ",window_close=", &nextopt)) {
2063 opts = nextopt;
2064 dpy.has_window_close = true;
2065 if (strstart(opts, "on", &nextopt)) {
2066 dpy.window_close = true;
2067 } else if (strstart(opts, "off", &nextopt)) {
2068 dpy.window_close = false;
2069 } else {
2070 goto invalid_sdl_args;
2071 }
2072 } else if (strstart(opts, ",gl=", &nextopt)) {
2073 opts = nextopt;
2074 dpy.has_gl = true;
2075 if (strstart(opts, "on", &nextopt)) {
2076 dpy.gl = DISPLAYGL_MODE_ON;
2077 } else if (strstart(opts, "core", &nextopt)) {
2078 dpy.gl = DISPLAYGL_MODE_CORE;
2079 } else if (strstart(opts, "es", &nextopt)) {
2080 dpy.gl = DISPLAYGL_MODE_ES;
2081 } else if (strstart(opts, "off", &nextopt)) {
2082 dpy.gl = DISPLAYGL_MODE_OFF;
2083 } else {
2084 goto invalid_sdl_args;
2085 }
2086 } else {
2087 invalid_sdl_args:
2088 error_report("invalid SDL option string");
2089 exit(1);
2090 }
2091 opts = nextopt;
2092 }
2093 } else if (strstart(p, "vnc", &opts)) {
2094 /*
2095 * vnc isn't a (local) DisplayType but a protocol for remote
2096 * display access.
2097 */
2098 if (*opts == '=') {
2099 vnc_parse(opts + 1, &error_fatal);
2100 } else {
2101 error_report("VNC requires a display argument vnc=<display>");
2102 exit(1);
2103 }
2104 } else {
2105 parse_display_qapi(p);
2106 }
2107 }
2108
2109 char *qemu_find_file(int type, const char *name)
2110 {
2111 int i;
2112 const char *subdir;
2113 char *buf;
2114
2115 /* Try the name as a straight path first */
2116 if (access(name, R_OK) == 0) {
2117 trace_load_file(name, name);
2118 return g_strdup(name);
2119 }
2120
2121 switch (type) {
2122 case QEMU_FILE_TYPE_BIOS:
2123 subdir = "";
2124 break;
2125 case QEMU_FILE_TYPE_KEYMAP:
2126 subdir = "keymaps/";
2127 break;
2128 default:
2129 abort();
2130 }
2131
2132 for (i = 0; i < data_dir_idx; i++) {
2133 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2134 if (access(buf, R_OK) == 0) {
2135 trace_load_file(name, buf);
2136 return buf;
2137 }
2138 g_free(buf);
2139 }
2140 return NULL;
2141 }
2142
2143 static void qemu_add_data_dir(const char *path)
2144 {
2145 int i;
2146
2147 if (path == NULL) {
2148 return;
2149 }
2150 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2151 return;
2152 }
2153 for (i = 0; i < data_dir_idx; i++) {
2154 if (strcmp(data_dir[i], path) == 0) {
2155 return; /* duplicate */
2156 }
2157 }
2158 data_dir[data_dir_idx++] = g_strdup(path);
2159 }
2160
2161 static inline bool nonempty_str(const char *str)
2162 {
2163 return str && *str;
2164 }
2165
2166 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2167 {
2168 gchar *buf;
2169 size_t size;
2170 const char *name, *file, *str;
2171 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2172
2173 if (fw_cfg == NULL) {
2174 error_setg(errp, "fw_cfg device not available");
2175 return -1;
2176 }
2177 name = qemu_opt_get(opts, "name");
2178 file = qemu_opt_get(opts, "file");
2179 str = qemu_opt_get(opts, "string");
2180
2181 /* we need name and either a file or the content string */
2182 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2183 error_setg(errp, "invalid argument(s)");
2184 return -1;
2185 }
2186 if (nonempty_str(file) && nonempty_str(str)) {
2187 error_setg(errp, "file and string are mutually exclusive");
2188 return -1;
2189 }
2190 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2191 error_setg(errp, "name too long (max. %d char)",
2192 FW_CFG_MAX_FILE_PATH - 1);
2193 return -1;
2194 }
2195 if (strncmp(name, "opt/", 4) != 0) {
2196 warn_report("externally provided fw_cfg item names "
2197 "should be prefixed with \"opt/\"");
2198 }
2199 if (nonempty_str(str)) {
2200 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2201 buf = g_memdup(str, size);
2202 } else {
2203 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2204 error_setg(errp, "can't load %s", file);
2205 return -1;
2206 }
2207 }
2208 /* For legacy, keep user files in a specific global order. */
2209 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2210 fw_cfg_add_file(fw_cfg, name, buf, size);
2211 fw_cfg_reset_order_override(fw_cfg);
2212 return 0;
2213 }
2214
2215 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2216 {
2217 return qdev_device_help(opts);
2218 }
2219
2220 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2221 {
2222 DeviceState *dev;
2223
2224 dev = qdev_device_add(opts, errp);
2225 if (!dev) {
2226 return -1;
2227 }
2228 object_unref(OBJECT(dev));
2229 return 0;
2230 }
2231
2232 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2233 {
2234 Error *local_err = NULL;
2235
2236 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2237 if (local_err) {
2238 error_propagate(errp, local_err);
2239 return -1;
2240 }
2241 exit(0);
2242 }
2243 return 0;
2244 }
2245
2246 #ifdef CONFIG_VIRTFS
2247 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2248 {
2249 return qemu_fsdev_add(opts, errp);
2250 }
2251 #endif
2252
2253 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2254 {
2255 Chardev *chr;
2256 const char *chardev;
2257 const char *mode;
2258 int flags;
2259
2260 mode = qemu_opt_get(opts, "mode");
2261 if (mode == NULL) {
2262 mode = "readline";
2263 }
2264 if (strcmp(mode, "readline") == 0) {
2265 flags = MONITOR_USE_READLINE;
2266 } else if (strcmp(mode, "control") == 0) {
2267 flags = MONITOR_USE_CONTROL;
2268 } else {
2269 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2270 return -1;
2271 }
2272
2273 if (qemu_opt_get_bool(opts, "pretty", 0))
2274 flags |= MONITOR_USE_PRETTY;
2275
2276 /* OOB is off by default */
2277 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2278 flags |= MONITOR_USE_OOB;
2279 }
2280
2281 chardev = qemu_opt_get(opts, "chardev");
2282 chr = qemu_chr_find(chardev);
2283 if (chr == NULL) {
2284 error_setg(errp, "chardev \"%s\" not found", chardev);
2285 return -1;
2286 }
2287
2288 monitor_init(chr, flags);
2289 return 0;
2290 }
2291
2292 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2293 {
2294 static int monitor_device_index = 0;
2295 QemuOpts *opts;
2296 const char *p;
2297 char label[32];
2298
2299 if (strstart(optarg, "chardev:", &p)) {
2300 snprintf(label, sizeof(label), "%s", p);
2301 } else {
2302 snprintf(label, sizeof(label), "compat_monitor%d",
2303 monitor_device_index);
2304 opts = qemu_chr_parse_compat(label, optarg, true);
2305 if (!opts) {
2306 error_report("parse error: %s", optarg);
2307 exit(1);
2308 }
2309 }
2310
2311 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2312 qemu_opt_set(opts, "mode", mode, &error_abort);
2313 qemu_opt_set(opts, "chardev", label, &error_abort);
2314 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2315 monitor_device_index++;
2316 }
2317
2318 struct device_config {
2319 enum {
2320 DEV_USB, /* -usbdevice */
2321 DEV_BT, /* -bt */
2322 DEV_SERIAL, /* -serial */
2323 DEV_PARALLEL, /* -parallel */
2324 DEV_VIRTCON, /* -virtioconsole */
2325 DEV_DEBUGCON, /* -debugcon */
2326 DEV_GDB, /* -gdb, -s */
2327 DEV_SCLP, /* s390 sclp */
2328 } type;
2329 const char *cmdline;
2330 Location loc;
2331 QTAILQ_ENTRY(device_config) next;
2332 };
2333
2334 static QTAILQ_HEAD(, device_config) device_configs =
2335 QTAILQ_HEAD_INITIALIZER(device_configs);
2336
2337 static void add_device_config(int type, const char *cmdline)
2338 {
2339 struct device_config *conf;
2340
2341 conf = g_malloc0(sizeof(*conf));
2342 conf->type = type;
2343 conf->cmdline = cmdline;
2344 loc_save(&conf->loc);
2345 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2346 }
2347
2348 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2349 {
2350 struct device_config *conf;
2351 int rc;
2352
2353 QTAILQ_FOREACH(conf, &device_configs, next) {
2354 if (conf->type != type)
2355 continue;
2356 loc_push_restore(&conf->loc);
2357 rc = func(conf->cmdline);
2358 loc_pop(&conf->loc);
2359 if (rc) {
2360 return rc;
2361 }
2362 }
2363 return 0;
2364 }
2365
2366 static int serial_parse(const char *devname)
2367 {
2368 int index = num_serial_hds;
2369 char label[32];
2370
2371 if (strcmp(devname, "none") == 0)
2372 return 0;
2373 snprintf(label, sizeof(label), "serial%d", index);
2374 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2375
2376 serial_hds[index] = qemu_chr_new_mux_mon(label, devname);
2377 if (!serial_hds[index]) {
2378 error_report("could not connect serial device"
2379 " to character backend '%s'", devname);
2380 return -1;
2381 }
2382 num_serial_hds++;
2383 return 0;
2384 }
2385
2386 Chardev *serial_hd(int i)
2387 {
2388 assert(i >= 0);
2389 if (i < num_serial_hds) {
2390 return serial_hds[i];
2391 }
2392 return NULL;
2393 }
2394
2395 int serial_max_hds(void)
2396 {
2397 return num_serial_hds;
2398 }
2399
2400 static int parallel_parse(const char *devname)
2401 {
2402 static int index = 0;
2403 char label[32];
2404
2405 if (strcmp(devname, "none") == 0)
2406 return 0;
2407 if (index == MAX_PARALLEL_PORTS) {
2408 error_report("too many parallel ports");
2409 exit(1);
2410 }
2411 snprintf(label, sizeof(label), "parallel%d", index);
2412 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname);
2413 if (!parallel_hds[index]) {
2414 error_report("could not connect parallel device"
2415 " to character backend '%s'", devname);
2416 return -1;
2417 }
2418 index++;
2419 return 0;
2420 }
2421
2422 static int virtcon_parse(const char *devname)
2423 {
2424 QemuOptsList *device = qemu_find_opts("device");
2425 static int index = 0;
2426 char label[32];
2427 QemuOpts *bus_opts, *dev_opts;
2428
2429 if (strcmp(devname, "none") == 0)
2430 return 0;
2431 if (index == MAX_VIRTIO_CONSOLES) {
2432 error_report("too many virtio consoles");
2433 exit(1);
2434 }
2435
2436 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2437 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2438
2439 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2440 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2441
2442 snprintf(label, sizeof(label), "virtcon%d", index);
2443 virtcon_hds[index] = qemu_chr_new_mux_mon(label, devname);
2444 if (!virtcon_hds[index]) {
2445 error_report("could not connect virtio console"
2446 " to character backend '%s'", devname);
2447 return -1;
2448 }
2449 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2450
2451 index++;
2452 return 0;
2453 }
2454
2455 static int debugcon_parse(const char *devname)
2456 {
2457 QemuOpts *opts;
2458
2459 if (!qemu_chr_new_mux_mon("debugcon", devname)) {
2460 error_report("invalid character backend '%s'", devname);
2461 exit(1);
2462 }
2463 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2464 if (!opts) {
2465 error_report("already have a debugcon device");
2466 exit(1);
2467 }
2468 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2469 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2470 return 0;
2471 }
2472
2473 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2474 {
2475 const MachineClass *mc1 = a, *mc2 = b;
2476 int res;
2477
2478 if (mc1->family == NULL) {
2479 if (mc2->family == NULL) {
2480 /* Compare standalone machine types against each other; they sort
2481 * in increasing order.
2482 */
2483 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2484 object_class_get_name(OBJECT_CLASS(mc2)));
2485 }
2486
2487 /* Standalone machine types sort after families. */
2488 return 1;
2489 }
2490
2491 if (mc2->family == NULL) {
2492 /* Families sort before standalone machine types. */
2493 return -1;
2494 }
2495
2496 /* Families sort between each other alphabetically increasingly. */
2497 res = strcmp(mc1->family, mc2->family);
2498 if (res != 0) {
2499 return res;
2500 }
2501
2502 /* Within the same family, machine types sort in decreasing order. */
2503 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2504 object_class_get_name(OBJECT_CLASS(mc1)));
2505 }
2506
2507 static MachineClass *machine_parse(const char *name)
2508 {
2509 MachineClass *mc = NULL;
2510 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2511
2512 if (name) {
2513 mc = find_machine(name);
2514 }
2515 if (mc) {
2516 g_slist_free(machines);
2517 return mc;
2518 }
2519 if (name && !is_help_option(name)) {
2520 error_report("unsupported machine type");
2521 error_printf("Use -machine help to list supported machines\n");
2522 } else {
2523 printf("Supported machines are:\n");
2524 machines = g_slist_sort(machines, machine_class_cmp);
2525 for (el = machines; el; el = el->next) {
2526 MachineClass *mc = el->data;
2527 if (mc->alias) {
2528 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2529 }
2530 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2531 mc->is_default ? " (default)" : "",
2532 mc->deprecation_reason ? " (deprecated)" : "");
2533 }
2534 }
2535
2536 g_slist_free(machines);
2537 exit(!name || !is_help_option(name));
2538 }
2539
2540 void qemu_add_exit_notifier(Notifier *notify)
2541 {
2542 notifier_list_add(&exit_notifiers, notify);
2543 }
2544
2545 void qemu_remove_exit_notifier(Notifier *notify)
2546 {
2547 notifier_remove(notify);
2548 }
2549
2550 static void qemu_run_exit_notifiers(void)
2551 {
2552 notifier_list_notify(&exit_notifiers, NULL);
2553 }
2554
2555 static const char *pid_file;
2556 static Notifier qemu_unlink_pidfile_notifier;
2557
2558 static void qemu_unlink_pidfile(Notifier *n, void *data)
2559 {
2560 if (pid_file) {
2561 unlink(pid_file);
2562 }
2563 }
2564
2565 bool machine_init_done;
2566
2567 void qemu_add_machine_init_done_notifier(Notifier *notify)
2568 {
2569 notifier_list_add(&machine_init_done_notifiers, notify);
2570 if (machine_init_done) {
2571 notify->notify(notify, NULL);
2572 }
2573 }
2574
2575 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2576 {
2577 notifier_remove(notify);
2578 }
2579
2580 static void qemu_run_machine_init_done_notifiers(void)
2581 {
2582 machine_init_done = true;
2583 notifier_list_notify(&machine_init_done_notifiers, NULL);
2584 }
2585
2586 static const QEMUOption *lookup_opt(int argc, char **argv,
2587 const char **poptarg, int *poptind)
2588 {
2589 const QEMUOption *popt;
2590 int optind = *poptind;
2591 char *r = argv[optind];
2592 const char *optarg;
2593
2594 loc_set_cmdline(argv, optind, 1);
2595 optind++;
2596 /* Treat --foo the same as -foo. */
2597 if (r[1] == '-')
2598 r++;
2599 popt = qemu_options;
2600 for(;;) {
2601 if (!popt->name) {
2602 error_report("invalid option");
2603 exit(1);
2604 }
2605 if (!strcmp(popt->name, r + 1))
2606 break;
2607 popt++;
2608 }
2609 if (popt->flags & HAS_ARG) {
2610 if (optind >= argc) {
2611 error_report("requires an argument");
2612 exit(1);
2613 }
2614 optarg = argv[optind++];
2615 loc_set_cmdline(argv, optind - 2, 2);
2616 } else {
2617 optarg = NULL;
2618 }
2619
2620 *poptarg = optarg;
2621 *poptind = optind;
2622
2623 return popt;
2624 }
2625
2626 static MachineClass *select_machine(void)
2627 {
2628 MachineClass *machine_class = find_default_machine();
2629 const char *optarg;
2630 QemuOpts *opts;
2631 Location loc;
2632
2633 loc_push_none(&loc);
2634
2635 opts = qemu_get_machine_opts();
2636 qemu_opts_loc_restore(opts);
2637
2638 optarg = qemu_opt_get(opts, "type");
2639 if (optarg) {
2640 machine_class = machine_parse(optarg);
2641 }
2642
2643 if (!machine_class) {
2644 error_report("No machine specified, and there is no default");
2645 error_printf("Use -machine help to list supported machines\n");
2646 exit(1);
2647 }
2648
2649 loc_pop(&loc);
2650 return machine_class;
2651 }
2652
2653 static int machine_set_property(void *opaque,
2654 const char *name, const char *value,
2655 Error **errp)
2656 {
2657 Object *obj = OBJECT(opaque);
2658 Error *local_err = NULL;
2659 char *p, *qom_name;
2660
2661 if (strcmp(name, "type") == 0) {
2662 return 0;
2663 }
2664
2665 qom_name = g_strdup(name);
2666 for (p = qom_name; *p; p++) {
2667 if (*p == '_') {
2668 *p = '-';
2669 }
2670 }
2671
2672 object_property_parse(obj, value, qom_name, &local_err);
2673 g_free(qom_name);
2674
2675 if (local_err) {
2676 error_propagate(errp, local_err);
2677 return -1;
2678 }
2679
2680 return 0;
2681 }
2682
2683
2684 /*
2685 * Initial object creation happens before all other
2686 * QEMU data types are created. The majority of objects
2687 * can be created at this point. The rng-egd object
2688 * cannot be created here, as it depends on the chardev
2689 * already existing.
2690 */
2691 static bool object_create_initial(const char *type, QemuOpts *opts)
2692 {
2693 ObjectClass *klass;
2694
2695 if (is_help_option(type)) {
2696 GSList *l, *list;
2697
2698 printf("List of user creatable objects:\n");
2699 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2700 for (l = list; l != NULL; l = l->next) {
2701 ObjectClass *oc = OBJECT_CLASS(l->data);
2702 printf("%s\n", object_class_get_name(oc));
2703 }
2704 g_slist_free(list);
2705 exit(0);
2706 }
2707
2708 klass = object_class_by_name(type);
2709 if (klass && qemu_opt_has_help_opt(opts)) {
2710 ObjectPropertyIterator iter;
2711 ObjectProperty *prop;
2712 GPtrArray *array = g_ptr_array_new();
2713 int i;
2714
2715 object_class_property_iter_init(&iter, klass);
2716 while ((prop = object_property_iter_next(&iter))) {
2717 GString *str;
2718
2719 if (!prop->set) {
2720 continue;
2721 }
2722
2723 str = g_string_new(NULL);
2724 g_string_append_printf(str, "%s.%s=%s", type,
2725 prop->name, prop->type);
2726 if (prop->description) {
2727 g_string_append_printf(str, " - %s", prop->description);
2728 }
2729 g_ptr_array_add(array, g_string_free(str, false));
2730 }
2731 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2732 for (i = 0; i < array->len; i++) {
2733 printf("%s\n", (char *)array->pdata[i]);
2734 }
2735 g_ptr_array_set_free_func(array, g_free);
2736 g_ptr_array_free(array, true);
2737 exit(0);
2738 }
2739
2740 if (g_str_equal(type, "rng-egd") ||
2741 g_str_has_prefix(type, "pr-manager-")) {
2742 return false;
2743 }
2744
2745 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2746 if (g_str_equal(type, "cryptodev-vhost-user")) {
2747 return false;
2748 }
2749 #endif
2750
2751 /*
2752 * return false for concrete netfilters since
2753 * they depend on netdevs already existing
2754 */
2755 if (g_str_equal(type, "filter-buffer") ||
2756 g_str_equal(type, "filter-dump") ||
2757 g_str_equal(type, "filter-mirror") ||
2758 g_str_equal(type, "filter-redirector") ||
2759 g_str_equal(type, "colo-compare") ||
2760 g_str_equal(type, "filter-rewriter") ||
2761 g_str_equal(type, "filter-replay")) {
2762 return false;
2763 }
2764
2765 /* Memory allocation by backends needs to be done
2766 * after configure_accelerator() (due to the tcg_enabled()
2767 * checks at memory_region_init_*()).
2768 *
2769 * Also, allocation of large amounts of memory may delay
2770 * chardev initialization for too long, and trigger timeouts
2771 * on software that waits for a monitor socket to be created
2772 * (e.g. libvirt).
2773 */
2774 if (g_str_has_prefix(type, "memory-backend-")) {
2775 return false;
2776 }
2777
2778 return true;
2779 }
2780
2781
2782 /*
2783 * The remainder of object creation happens after the
2784 * creation of chardev, fsdev, net clients and device data types.
2785 */
2786 static bool object_create_delayed(const char *type, QemuOpts *opts)
2787 {
2788 return !object_create_initial(type, opts);
2789 }
2790
2791
2792 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2793 MachineClass *mc)
2794 {
2795 uint64_t sz;
2796 const char *mem_str;
2797 const ram_addr_t default_ram_size = mc->default_ram_size;
2798 QemuOpts *opts = qemu_find_opts_singleton("memory");
2799 Location loc;
2800
2801 loc_push_none(&loc);
2802 qemu_opts_loc_restore(opts);
2803
2804 sz = 0;
2805 mem_str = qemu_opt_get(opts, "size");
2806 if (mem_str) {
2807 if (!*mem_str) {
2808 error_report("missing 'size' option value");
2809 exit(EXIT_FAILURE);
2810 }
2811
2812 sz = qemu_opt_get_size(opts, "size", ram_size);
2813
2814 /* Fix up legacy suffix-less format */
2815 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2816 uint64_t overflow_check = sz;
2817
2818 sz *= MiB;
2819 if (sz / MiB != overflow_check) {
2820 error_report("too large 'size' option value");
2821 exit(EXIT_FAILURE);
2822 }
2823 }
2824 }
2825
2826 /* backward compatibility behaviour for case "-m 0" */
2827 if (sz == 0) {
2828 sz = default_ram_size;
2829 }
2830
2831 sz = QEMU_ALIGN_UP(sz, 8192);
2832 ram_size = sz;
2833 if (ram_size != sz) {
2834 error_report("ram size too large");
2835 exit(EXIT_FAILURE);
2836 }
2837
2838 /* store value for the future use */
2839 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2840 *maxram_size = ram_size;
2841
2842 if (qemu_opt_get(opts, "maxmem")) {
2843 uint64_t slots;
2844
2845 sz = qemu_opt_get_size(opts, "maxmem", 0);
2846 slots = qemu_opt_get_number(opts, "slots", 0);
2847 if (sz < ram_size) {
2848 error_report("invalid value of -m option maxmem: "
2849 "maximum memory size (0x%" PRIx64 ") must be at least "
2850 "the initial memory size (0x" RAM_ADDR_FMT ")",
2851 sz, ram_size);
2852 exit(EXIT_FAILURE);
2853 } else if (slots && sz == ram_size) {
2854 error_report("invalid value of -m option maxmem: "
2855 "memory slots were specified but maximum memory size "
2856 "(0x%" PRIx64 ") is equal to the initial memory size "
2857 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2858 exit(EXIT_FAILURE);
2859 }
2860
2861 *maxram_size = sz;
2862 *ram_slots = slots;
2863 } else if (qemu_opt_get(opts, "slots")) {
2864 error_report("invalid -m option value: missing 'maxmem' option");
2865 exit(EXIT_FAILURE);
2866 }
2867
2868 loc_pop(&loc);
2869 }
2870
2871 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2872 {
2873 GlobalProperty *g;
2874
2875 g = g_malloc0(sizeof(*g));
2876 g->driver = qemu_opt_get(opts, "driver");
2877 g->property = qemu_opt_get(opts, "property");
2878 g->value = qemu_opt_get(opts, "value");
2879 g->user_provided = true;
2880 g->errp = &error_fatal;
2881 qdev_prop_register_global(g);
2882 return 0;
2883 }
2884
2885 static int qemu_read_default_config_file(void)
2886 {
2887 int ret;
2888
2889 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2890 if (ret < 0 && ret != -ENOENT) {
2891 return ret;
2892 }
2893
2894 return 0;
2895 }
2896
2897 static void user_register_global_props(void)
2898 {
2899 qemu_opts_foreach(qemu_find_opts("global"),
2900 global_init_func, NULL, NULL);
2901 }
2902
2903 /*
2904 * Note: we should see that these properties are actually having a
2905 * priority: accel < machine < user. This means e.g. when user
2906 * specifies something in "-global", it'll always be used with highest
2907 * priority than either machine/accelerator compat properties.
2908 */
2909 static void register_global_properties(MachineState *ms)
2910 {
2911 accel_register_compat_props(ms->accelerator);
2912 machine_register_compat_props(ms);
2913 user_register_global_props();
2914 }
2915
2916 int main(int argc, char **argv, char **envp)
2917 {
2918 int i;
2919 int snapshot, linux_boot;
2920 const char *initrd_filename;
2921 const char *kernel_filename, *kernel_cmdline;
2922 const char *boot_order = NULL;
2923 const char *boot_once = NULL;
2924 DisplayState *ds;
2925 QemuOpts *opts, *machine_opts;
2926 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2927 QemuOptsList *olist;
2928 int optind;
2929 const char *optarg;
2930 const char *loadvm = NULL;
2931 MachineClass *machine_class;
2932 const char *cpu_model;
2933 const char *vga_model = NULL;
2934 const char *qtest_chrdev = NULL;
2935 const char *qtest_log = NULL;
2936 const char *incoming = NULL;
2937 bool userconfig = true;
2938 bool nographic = false;
2939 int display_remote = 0;
2940 const char *log_mask = NULL;
2941 const char *log_file = NULL;
2942 char *trace_file = NULL;
2943 ram_addr_t maxram_size;
2944 uint64_t ram_slots = 0;
2945 FILE *vmstate_dump_file = NULL;
2946 Error *main_loop_err = NULL;
2947 Error *err = NULL;
2948 bool list_data_dirs = false;
2949 char *dir, **dirs;
2950 typedef struct BlockdevOptions_queue {
2951 BlockdevOptions *bdo;
2952 Location loc;
2953 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
2954 } BlockdevOptions_queue;
2955 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
2956 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2957
2958 module_call_init(MODULE_INIT_TRACE);
2959
2960 qemu_init_cpu_list();
2961 qemu_init_cpu_loop();
2962
2963 qemu_mutex_lock_iothread();
2964
2965 atexit(qemu_run_exit_notifiers);
2966 error_set_progname(argv[0]);
2967 qemu_init_exec_dir(argv[0]);
2968
2969 module_call_init(MODULE_INIT_QOM);
2970
2971 qemu_add_opts(&qemu_drive_opts);
2972 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2973 qemu_add_drive_opts(&qemu_common_drive_opts);
2974 qemu_add_drive_opts(&qemu_drive_opts);
2975 qemu_add_drive_opts(&bdrv_runtime_opts);
2976 qemu_add_opts(&qemu_chardev_opts);
2977 qemu_add_opts(&qemu_device_opts);
2978 qemu_add_opts(&qemu_netdev_opts);
2979 qemu_add_opts(&qemu_nic_opts);
2980 qemu_add_opts(&qemu_net_opts);
2981 qemu_add_opts(&qemu_rtc_opts);
2982 qemu_add_opts(&qemu_global_opts);
2983 qemu_add_opts(&qemu_mon_opts);
2984 qemu_add_opts(&qemu_trace_opts);
2985 qemu_add_opts(&qemu_option_rom_opts);
2986 qemu_add_opts(&qemu_machine_opts);
2987 qemu_add_opts(&qemu_accel_opts);
2988 qemu_add_opts(&qemu_mem_opts);
2989 qemu_add_opts(&qemu_smp_opts);
2990 qemu_add_opts(&qemu_boot_opts);
2991 qemu_add_opts(&qemu_add_fd_opts);
2992 qemu_add_opts(&qemu_object_opts);
2993 qemu_add_opts(&qemu_tpmdev_opts);
2994 qemu_add_opts(&qemu_realtime_opts);
2995 qemu_add_opts(&qemu_overcommit_opts);
2996 qemu_add_opts(&qemu_msg_opts);
2997 qemu_add_opts(&qemu_name_opts);
2998 qemu_add_opts(&qemu_numa_opts);
2999 qemu_add_opts(&qemu_icount_opts);
3000 qemu_add_opts(&qemu_semihosting_config_opts);
3001 qemu_add_opts(&qemu_fw_cfg_opts);
3002 module_call_init(MODULE_INIT_OPTS);
3003
3004 runstate_init();
3005 postcopy_infrastructure_init();
3006 monitor_init_globals();
3007
3008 if (qcrypto_init(&err) < 0) {
3009 error_reportf_err(err, "cannot initialize crypto: ");
3010 exit(1);
3011 }
3012 rtc_clock = QEMU_CLOCK_HOST;
3013
3014 QLIST_INIT (&vm_change_state_head);
3015 os_setup_early_signal_handling();
3016
3017 cpu_model = NULL;
3018 snapshot = 0;
3019
3020 nb_nics = 0;
3021
3022 bdrv_init_with_whitelist();
3023
3024 autostart = 1;
3025
3026 /* first pass of option parsing */
3027 optind = 1;
3028 while (optind < argc) {
3029 if (argv[optind][0] != '-') {
3030 /* disk image */
3031 optind++;
3032 } else {
3033 const QEMUOption *popt;
3034
3035 popt = lookup_opt(argc, argv, &optarg, &optind);
3036 switch (popt->index) {
3037 case QEMU_OPTION_nouserconfig:
3038 userconfig = false;
3039 break;
3040 }
3041 }
3042 }
3043
3044 if (userconfig) {
3045 if (qemu_read_default_config_file() < 0) {
3046 exit(1);
3047 }
3048 }
3049
3050 /* second pass of option parsing */
3051 optind = 1;
3052 for(;;) {
3053 if (optind >= argc)
3054 break;
3055 if (argv[optind][0] != '-') {
3056 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3057 } else {
3058 const QEMUOption *popt;
3059
3060 popt = lookup_opt(argc, argv, &optarg, &optind);
3061 if (!(popt->arch_mask & arch_type)) {
3062 error_report("Option not supported for this target");
3063 exit(1);
3064 }
3065 switch(popt->index) {
3066 case QEMU_OPTION_cpu:
3067 /* hw initialization will check this */
3068 cpu_model = optarg;
3069 break;
3070 case QEMU_OPTION_hda:
3071 case QEMU_OPTION_hdb:
3072 case QEMU_OPTION_hdc:
3073 case QEMU_OPTION_hdd:
3074 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3075 HD_OPTS);
3076 break;
3077 case QEMU_OPTION_blockdev:
3078 {
3079 Visitor *v;
3080 BlockdevOptions_queue *bdo;
3081
3082 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3083 if (!v) {
3084 error_report_err(err);
3085 exit(1);
3086 }
3087
3088 bdo = g_new(BlockdevOptions_queue, 1);
3089 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3090 &error_fatal);
3091 visit_free(v);
3092 loc_save(&bdo->loc);
3093 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3094 break;
3095 }
3096 case QEMU_OPTION_drive:
3097 if (drive_def(optarg) == NULL) {
3098 exit(1);
3099 }
3100 break;
3101 case QEMU_OPTION_set:
3102 if (qemu_set_option(optarg) != 0)
3103 exit(1);
3104 break;
3105 case QEMU_OPTION_global:
3106 if (qemu_global_option(optarg) != 0)
3107 exit(1);
3108 break;
3109 case QEMU_OPTION_mtdblock:
3110 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3111 break;
3112 case QEMU_OPTION_sd:
3113 drive_add(IF_SD, -1, optarg, SD_OPTS);
3114 break;
3115 case QEMU_OPTION_pflash:
3116 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3117 break;
3118 case QEMU_OPTION_snapshot:
3119 snapshot = 1;
3120 break;
3121 case QEMU_OPTION_numa:
3122 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3123 optarg, true);
3124 if (!opts) {
3125 exit(1);
3126 }
3127 break;
3128 case QEMU_OPTION_display:
3129 parse_display(optarg);
3130 break;
3131 case QEMU_OPTION_nographic:
3132 olist = qemu_find_opts("machine");
3133 qemu_opts_parse_noisily(olist, "graphics=off", false);
3134 nographic = true;
3135 dpy.type = DISPLAY_TYPE_NONE;
3136 break;
3137 case QEMU_OPTION_curses:
3138 #ifdef CONFIG_CURSES
3139 dpy.type = DISPLAY_TYPE_CURSES;
3140 #else
3141 error_report("curses support is disabled");
3142 exit(1);
3143 #endif
3144 break;
3145 case QEMU_OPTION_portrait:
3146 graphic_rotate = 90;
3147 break;
3148 case QEMU_OPTION_rotate:
3149 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3150 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3151 graphic_rotate != 180 && graphic_rotate != 270) {
3152 error_report("only 90, 180, 270 deg rotation is available");
3153 exit(1);
3154 }
3155 break;
3156 case QEMU_OPTION_kernel:
3157 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3158 &error_abort);
3159 break;
3160 case QEMU_OPTION_initrd:
3161 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3162 &error_abort);
3163 break;
3164 case QEMU_OPTION_append:
3165 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3166 &error_abort);
3167 break;
3168 case QEMU_OPTION_dtb:
3169 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3170 &error_abort);
3171 break;
3172 case QEMU_OPTION_cdrom:
3173 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3174 break;
3175 case QEMU_OPTION_boot:
3176 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3177 optarg, true);
3178 if (!opts) {
3179 exit(1);
3180 }
3181 break;
3182 case QEMU_OPTION_fda:
3183 case QEMU_OPTION_fdb:
3184 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3185 optarg, FD_OPTS);
3186 break;
3187 case QEMU_OPTION_no_fd_bootchk:
3188 fd_bootchk = 0;
3189 break;
3190 case QEMU_OPTION_netdev:
3191 default_net = 0;
3192 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3193 exit(1);
3194 }
3195 break;
3196 case QEMU_OPTION_nic:
3197 default_net = 0;
3198 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3199 exit(1);
3200 }
3201 break;
3202 case QEMU_OPTION_net:
3203 default_net = 0;
3204 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3205 exit(1);
3206 }
3207 break;
3208 #ifdef CONFIG_LIBISCSI
3209 case QEMU_OPTION_iscsi:
3210 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3211 optarg, false);
3212 if (!opts) {
3213 exit(1);
3214 }
3215 break;
3216 #endif
3217 case QEMU_OPTION_bt:
3218 add_device_config(DEV_BT, optarg);
3219 break;
3220 case QEMU_OPTION_audio_help:
3221 AUD_help ();
3222 exit (0);
3223 break;
3224 case QEMU_OPTION_soundhw:
3225 select_soundhw (optarg);
3226 break;
3227 case QEMU_OPTION_h:
3228 help(0);
3229 break;
3230 case QEMU_OPTION_version:
3231 version();
3232 exit(0);
3233 break;
3234 case QEMU_OPTION_m:
3235 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3236 optarg, true);
3237 if (!opts) {
3238 exit(EXIT_FAILURE);
3239 }
3240 break;
3241 #ifdef CONFIG_TPM
3242 case QEMU_OPTION_tpmdev:
3243 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3244 exit(1);
3245 }
3246 break;
3247 #endif
3248 case QEMU_OPTION_mempath:
3249 mem_path = optarg;
3250 break;
3251 case QEMU_OPTION_mem_prealloc:
3252 mem_prealloc = 1;
3253 break;
3254 case QEMU_OPTION_d:
3255 log_mask = optarg;
3256 break;
3257 case QEMU_OPTION_D:
3258 log_file = optarg;
3259 break;
3260 case QEMU_OPTION_DFILTER:
3261 qemu_set_dfilter_ranges(optarg, &error_fatal);
3262 break;
3263 case QEMU_OPTION_s:
3264 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3265 break;
3266 case QEMU_OPTION_gdb:
3267 add_device_config(DEV_GDB, optarg);
3268 break;
3269 case QEMU_OPTION_L:
3270 if (is_help_option(optarg)) {
3271 list_data_dirs = true;
3272 } else {
3273 qemu_add_data_dir(optarg);
3274 }
3275 break;
3276 case QEMU_OPTION_bios:
3277 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3278 &error_abort);
3279 break;
3280 case QEMU_OPTION_singlestep:
3281 singlestep = 1;
3282 break;
3283 case QEMU_OPTION_S:
3284 autostart = 0;
3285 break;
3286 case QEMU_OPTION_k:
3287 keyboard_layout = optarg;
3288 break;
3289 case QEMU_OPTION_vga:
3290 vga_model = optarg;
3291 default_vga = 0;
3292 break;
3293 case QEMU_OPTION_g:
3294 {
3295 const char *p;
3296 int w, h, depth;
3297 p = optarg;
3298 w = strtol(p, (char **)&p, 10);
3299 if (w <= 0) {
3300 graphic_error:
3301 error_report("invalid resolution or depth");
3302 exit(1);
3303 }
3304 if (*p != 'x')
3305 goto graphic_error;
3306 p++;
3307 h = strtol(p, (char **)&p, 10);
3308 if (h <= 0)
3309 goto graphic_error;
3310 if (*p == 'x') {
3311 p++;
3312 depth = strtol(p, (char **)&p, 10);
3313 if (depth != 8 && depth != 15 && depth != 16 &&
3314 depth != 24 && depth != 32)
3315 goto graphic_error;
3316 } else if (*p == '\0') {
3317 depth = graphic_depth;
3318 } else {
3319 goto graphic_error;
3320 }
3321
3322 graphic_width = w;
3323 graphic_height = h;
3324 graphic_depth = depth;
3325 }
3326 break;
3327 case QEMU_OPTION_echr:
3328 {
3329 char *r;
3330 term_escape_char = strtol(optarg, &r, 0);
3331 if (r == optarg)
3332 printf("Bad argument to echr\n");
3333 break;
3334 }
3335 case QEMU_OPTION_monitor:
3336 default_monitor = 0;
3337 if (strncmp(optarg, "none", 4)) {
3338 monitor_parse(optarg, "readline", false);
3339 }
3340 break;
3341 case QEMU_OPTION_qmp:
3342 monitor_parse(optarg, "control", false);
3343 default_monitor = 0;
3344 break;
3345 case QEMU_OPTION_qmp_pretty:
3346 monitor_parse(optarg, "control", true);
3347 default_monitor = 0;
3348 break;
3349 case QEMU_OPTION_mon:
3350 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3351 true);
3352 if (!opts) {
3353 exit(1);
3354 }
3355 default_monitor = 0;
3356 break;
3357 case QEMU_OPTION_chardev:
3358 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3359 optarg, true);
3360 if (!opts) {
3361 exit(1);
3362 }
3363 break;
3364 case QEMU_OPTION_fsdev:
3365 olist = qemu_find_opts("fsdev");
3366 if (!olist) {
3367 error_report("fsdev support is disabled");
3368 exit(1);
3369 }
3370 opts = qemu_opts_parse_noisily(olist, optarg, true);
3371 if (!opts) {
3372 exit(1);
3373 }
3374 break;
3375 case QEMU_OPTION_virtfs: {
3376 QemuOpts *fsdev;
3377 QemuOpts *device;
3378 const char *writeout, *sock_fd, *socket, *path, *security_model;
3379
3380 olist = qemu_find_opts("virtfs");
3381 if (!olist) {
3382 error_report("virtfs support is disabled");
3383 exit(1);
3384 }
3385 opts = qemu_opts_parse_noisily(olist, optarg, true);
3386 if (!opts) {
3387 exit(1);
3388 }
3389
3390 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3391 qemu_opt_get(opts, "mount_tag") == NULL) {
3392 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3393 exit(1);
3394 }
3395 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3396 qemu_opts_id(opts) ?:
3397 qemu_opt_get(opts, "mount_tag"),
3398 1, NULL);
3399 if (!fsdev) {
3400 error_report("duplicate or invalid fsdev id: %s",
3401 qemu_opt_get(opts, "mount_tag"));
3402 exit(1);
3403 }
3404
3405 writeout = qemu_opt_get(opts, "writeout");
3406 if (writeout) {
3407 #ifdef CONFIG_SYNC_FILE_RANGE
3408 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3409 #else
3410 error_report("writeout=immediate not supported "
3411 "on this platform");
3412 exit(1);
3413 #endif
3414 }
3415 qemu_opt_set(fsdev, "fsdriver",
3416 qemu_opt_get(opts, "fsdriver"), &error_abort);
3417 path = qemu_opt_get(opts, "path");
3418 if (path) {
3419 qemu_opt_set(fsdev, "path", path, &error_abort);
3420 }
3421 security_model = qemu_opt_get(opts, "security_model");
3422 if (security_model) {
3423 qemu_opt_set(fsdev, "security_model", security_model,
3424 &error_abort);
3425 }
3426 socket = qemu_opt_get(opts, "socket");
3427 if (socket) {
3428 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3429 }
3430 sock_fd = qemu_opt_get(opts, "sock_fd");
3431 if (sock_fd) {
3432 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3433 }
3434
3435 qemu_opt_set_bool(fsdev, "readonly",
3436 qemu_opt_get_bool(opts, "readonly", 0),
3437 &error_abort);
3438 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3439 &error_abort);
3440 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3441 qemu_opt_set(device, "fsdev",
3442 qemu_opts_id(fsdev), &error_abort);
3443 qemu_opt_set(device, "mount_tag",
3444 qemu_opt_get(opts, "mount_tag"), &error_abort);
3445 break;
3446 }
3447 case QEMU_OPTION_virtfs_synth: {
3448 QemuOpts *fsdev;
3449 QemuOpts *device;
3450
3451 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3452 1, NULL);
3453 if (!fsdev) {
3454 error_report("duplicate option: %s", "virtfs_synth");
3455 exit(1);
3456 }
3457 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3458
3459 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3460 &error_abort);
3461 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3462 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3463 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3464 break;
3465 }
3466 case QEMU_OPTION_serial:
3467 add_device_config(DEV_SERIAL, optarg);
3468 default_serial = 0;
3469 if (strncmp(optarg, "mon:", 4) == 0) {
3470 default_monitor = 0;
3471 }
3472 break;
3473 case QEMU_OPTION_watchdog:
3474 if (watchdog) {
3475 error_report("only one watchdog option may be given");
3476 return 1;
3477 }
3478 watchdog = optarg;
3479 break;
3480 case QEMU_OPTION_watchdog_action:
3481 if (select_watchdog_action(optarg) == -1) {
3482 error_report("unknown -watchdog-action parameter");
3483 exit(1);
3484 }
3485 break;
3486 case QEMU_OPTION_virtiocon:
3487 warn_report("This option is deprecated, "
3488 "use '-device virtconsole' instead");
3489 add_device_config(DEV_VIRTCON, optarg);
3490 default_virtcon = 0;
3491 if (strncmp(optarg, "mon:", 4) == 0) {
3492 default_monitor = 0;
3493 }
3494 break;
3495 case QEMU_OPTION_parallel:
3496 add_device_config(DEV_PARALLEL, optarg);
3497 default_parallel = 0;
3498 if (strncmp(optarg, "mon:", 4) == 0) {
3499 default_monitor = 0;
3500 }
3501 break;
3502 case QEMU_OPTION_debugcon:
3503 add_device_config(DEV_DEBUGCON, optarg);
3504 break;
3505 case QEMU_OPTION_loadvm:
3506 loadvm = optarg;
3507 break;
3508 case QEMU_OPTION_full_screen:
3509 dpy.has_full_screen = true;
3510 dpy.full_screen = true;
3511 break;
3512 case QEMU_OPTION_no_frame:
3513 g_printerr("The -no-frame switch is deprecated, and will be\n"
3514 "removed in a future release.\n");
3515 no_frame = 1;
3516 break;
3517 case QEMU_OPTION_alt_grab:
3518 alt_grab = 1;
3519 break;
3520 case QEMU_OPTION_ctrl_grab:
3521 ctrl_grab = 1;
3522 break;
3523 case QEMU_OPTION_no_quit:
3524 dpy.has_window_close = true;
3525 dpy.window_close = false;
3526 break;
3527 case QEMU_OPTION_sdl:
3528 #ifdef CONFIG_SDL
3529 dpy.type = DISPLAY_TYPE_SDL;
3530 break;
3531 #else
3532 error_report("SDL support is disabled");
3533 exit(1);
3534 #endif
3535 case QEMU_OPTION_pidfile:
3536 pid_file = optarg;
3537 break;
3538 case QEMU_OPTION_win2k_hack:
3539 win2k_install_hack = 1;
3540 break;
3541 case QEMU_OPTION_acpitable:
3542 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3543 optarg, true);
3544 if (!opts) {
3545 exit(1);
3546 }
3547 acpi_table_add(opts, &error_fatal);
3548 break;
3549 case QEMU_OPTION_smbios:
3550 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3551 optarg, false);
3552 if (!opts) {
3553 exit(1);
3554 }
3555 smbios_entry_add(opts, &error_fatal);
3556 break;
3557 case QEMU_OPTION_fwcfg:
3558 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3559 optarg, true);
3560 if (opts == NULL) {
3561 exit(1);
3562 }
3563 break;
3564 case QEMU_OPTION_preconfig:
3565 preconfig_exit_requested = false;
3566 break;
3567 case QEMU_OPTION_enable_kvm:
3568 olist = qemu_find_opts("machine");
3569 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3570 break;
3571 case QEMU_OPTION_enable_hax:
3572 warn_report("Option is deprecated, use '-accel hax' instead");
3573 olist = qemu_find_opts("machine");
3574 qemu_opts_parse_noisily(olist, "accel=hax", false);
3575 break;
3576 case QEMU_OPTION_M:
3577 case QEMU_OPTION_machine:
3578 olist = qemu_find_opts("machine");
3579 opts = qemu_opts_parse_noisily(olist, optarg, true);
3580 if (!opts) {
3581 exit(1);
3582 }
3583 break;
3584 case QEMU_OPTION_no_kvm:
3585 olist = qemu_find_opts("machine");
3586 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3587 break;
3588 case QEMU_OPTION_accel:
3589 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3590 optarg, true);
3591 optarg = qemu_opt_get(accel_opts, "accel");
3592 if (!optarg || is_help_option(optarg)) {
3593 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3594 exit(0);
3595 }
3596 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3597 false, &error_abort);
3598 qemu_opt_set(opts, "accel", optarg, &error_abort);
3599 break;
3600 case QEMU_OPTION_usb:
3601 olist = qemu_find_opts("machine");
3602 qemu_opts_parse_noisily(olist, "usb=on", false);
3603 break;
3604 case QEMU_OPTION_usbdevice:
3605 error_report("'-usbdevice' is deprecated, please use "
3606 "'-device usb-...' instead");
3607 olist = qemu_find_opts("machine");
3608 qemu_opts_parse_noisily(olist, "usb=on", false);
3609 add_device_config(DEV_USB, optarg);
3610 break;
3611 case QEMU_OPTION_device:
3612 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3613 optarg, true)) {
3614 exit(1);
3615 }
3616 break;
3617 case QEMU_OPTION_smp:
3618 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3619 optarg, true)) {
3620 exit(1);
3621 }
3622 break;
3623 case QEMU_OPTION_vnc:
3624 vnc_parse(optarg, &error_fatal);
3625 break;
3626 case QEMU_OPTION_no_acpi:
3627 acpi_enabled = 0;
3628 break;
3629 case QEMU_OPTION_no_hpet:
3630 no_hpet = 1;
3631 break;
3632 case QEMU_OPTION_no_reboot:
3633 no_reboot = 1;
3634 break;
3635 case QEMU_OPTION_no_shutdown:
3636 no_shutdown = 1;
3637 break;
3638 case QEMU_OPTION_show_cursor:
3639 cursor_hide = 0;
3640 break;
3641 case QEMU_OPTION_uuid:
3642 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3643 error_report("failed to parse UUID string: wrong format");
3644 exit(1);
3645 }
3646 qemu_uuid_set = true;
3647 break;
3648 case QEMU_OPTION_option_rom:
3649 if (nb_option_roms >= MAX_OPTION_ROMS) {
3650 error_report("too many option ROMs");
3651 exit(1);
3652 }
3653 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3654 optarg, true);
3655 if (!opts) {
3656 exit(1);
3657 }
3658 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3659 option_rom[nb_option_roms].bootindex =
3660 qemu_opt_get_number(opts, "bootindex", -1);
3661 if (!option_rom[nb_option_roms].name) {
3662 error_report("Option ROM file is not specified");
3663 exit(1);
3664 }
3665 nb_option_roms++;
3666 break;
3667 case QEMU_OPTION_semihosting:
3668 semihosting.enabled = true;
3669 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3670 break;
3671 case QEMU_OPTION_semihosting_config:
3672 semihosting.enabled = true;
3673 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3674 optarg, false);
3675 if (opts != NULL) {
3676 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3677 true);
3678 const char *target = qemu_opt_get(opts, "target");
3679 if (target != NULL) {
3680 if (strcmp("native", target) == 0) {
3681 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3682 } else if (strcmp("gdb", target) == 0) {
3683 semihosting.target = SEMIHOSTING_TARGET_GDB;
3684 } else if (strcmp("auto", target) == 0) {
3685 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3686 } else {
3687 error_report("unsupported semihosting-config %s",
3688 optarg);
3689 exit(1);
3690 }
3691 } else {
3692 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3693 }
3694 /* Set semihosting argument count and vector */
3695 qemu_opt_foreach(opts, add_semihosting_arg,
3696 &semihosting, NULL);
3697 } else {
3698 error_report("unsupported semihosting-config %s", optarg);
3699 exit(1);
3700 }
3701 break;
3702 case QEMU_OPTION_name:
3703 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3704 optarg, true);
3705 if (!opts) {
3706 exit(1);
3707 }
3708 break;
3709 case QEMU_OPTION_prom_env:
3710 if (nb_prom_envs >= MAX_PROM_ENVS) {
3711 error_report("too many prom variables");
3712 exit(1);
3713 }
3714 prom_envs[nb_prom_envs] = optarg;
3715 nb_prom_envs++;
3716 break;
3717 case QEMU_OPTION_old_param:
3718 old_param = 1;
3719 break;
3720 case QEMU_OPTION_clock:
3721 /* Clock options no longer exist. Keep this option for
3722 * backward compatibility.
3723 */
3724 warn_report("This option is ignored and will be removed soon");
3725 break;
3726 case QEMU_OPTION_rtc:
3727 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3728 false);
3729 if (!opts) {
3730 exit(1);
3731 }
3732 configure_rtc(opts);
3733 break;
3734 case QEMU_OPTION_tb_size:
3735 #ifndef CONFIG_TCG
3736 error_report("TCG is disabled");
3737 exit(1);
3738 #endif
3739 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3740 error_report("Invalid argument to -tb-size");
3741 exit(1);
3742 }
3743 break;
3744 case QEMU_OPTION_icount:
3745 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3746 optarg, true);
3747 if (!icount_opts) {
3748 exit(1);
3749 }
3750 break;
3751 case QEMU_OPTION_incoming:
3752 if (!incoming) {
3753 runstate_set(RUN_STATE_INMIGRATE);
3754 }
3755 incoming = optarg;
3756 break;
3757 case QEMU_OPTION_only_migratable:
3758 /*
3759 * TODO: we can remove this option one day, and we
3760 * should all use:
3761 *
3762 * "-global migration.only-migratable=true"
3763 */
3764 qemu_global_option("migration.only-migratable=true");
3765 break;
3766 case QEMU_OPTION_nodefaults:
3767 has_defaults = 0;
3768 break;
3769 case QEMU_OPTION_xen_domid:
3770 if (!(xen_available())) {
3771 error_report("Option not supported for this target");
3772 exit(1);
3773 }
3774 xen_domid = atoi(optarg);
3775 break;
3776 case QEMU_OPTION_xen_create:
3777 if (!(xen_available())) {
3778 error_report("Option not supported for this target");
3779 exit(1);
3780 }
3781 xen_mode = XEN_CREATE;
3782 break;
3783 case QEMU_OPTION_xen_attach:
3784 if (!(xen_available())) {
3785 error_report("Option not supported for this target");
3786 exit(1);
3787 }
3788 xen_mode = XEN_ATTACH;
3789 break;
3790 case QEMU_OPTION_xen_domid_restrict:
3791 if (!(xen_available())) {
3792 error_report("Option not supported for this target");
3793 exit(1);
3794 }
3795 xen_domid_restrict = true;
3796 break;
3797 case QEMU_OPTION_trace:
3798 g_free(trace_file);
3799 trace_file = trace_opt_parse(optarg);
3800 break;
3801 case QEMU_OPTION_readconfig:
3802 {
3803 int ret = qemu_read_config_file(optarg);
3804 if (ret < 0) {
3805 error_report("read config %s: %s", optarg,
3806 strerror(-ret));
3807 exit(1);
3808 }
3809 break;
3810 }
3811 case QEMU_OPTION_spice:
3812 olist = qemu_find_opts("spice");
3813 if (!olist) {
3814 error_report("spice support is disabled");
3815 exit(1);
3816 }
3817 opts = qemu_opts_parse_noisily(olist, optarg, false);
3818 if (!opts) {
3819 exit(1);
3820 }
3821 display_remote++;
3822 break;
3823 case QEMU_OPTION_writeconfig:
3824 {
3825 FILE *fp;
3826 if (strcmp(optarg, "-") == 0) {
3827 fp = stdout;
3828 } else {
3829 fp = fopen(optarg, "w");
3830 if (fp == NULL) {
3831 error_report("open %s: %s", optarg,
3832 strerror(errno));
3833 exit(1);
3834 }
3835 }
3836 qemu_config_write(fp);
3837 if (fp != stdout) {
3838 fclose(fp);
3839 }
3840 break;
3841 }
3842 case QEMU_OPTION_qtest:
3843 qtest_chrdev = optarg;
3844 break;
3845 case QEMU_OPTION_qtest_log:
3846 qtest_log = optarg;
3847 break;
3848 case QEMU_OPTION_sandbox:
3849 #ifdef CONFIG_SECCOMP
3850 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3851 optarg, true);
3852 if (!opts) {
3853 exit(1);
3854 }
3855 #else
3856 error_report("-sandbox support is not enabled "
3857 "in this QEMU binary");
3858 exit(1);
3859 #endif
3860 break;
3861 case QEMU_OPTION_add_fd:
3862 #ifndef _WIN32
3863 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3864 optarg, false);
3865 if (!opts) {
3866 exit(1);
3867 }
3868 #else
3869 error_report("File descriptor passing is disabled on this "
3870 "platform");
3871 exit(1);
3872 #endif
3873 break;
3874 case QEMU_OPTION_object:
3875 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3876 optarg, true);
3877 if (!opts) {
3878 exit(1);
3879 }
3880 break;
3881 case QEMU_OPTION_realtime:
3882 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3883 optarg, false);
3884 if (!opts) {
3885 exit(1);
3886 }
3887 /* Don't override the -overcommit option if set */
3888 enable_mlock = enable_mlock ||
3889 qemu_opt_get_bool(opts, "mlock", true);
3890 break;
3891 case QEMU_OPTION_overcommit:
3892 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3893 optarg, false);
3894 if (!opts) {
3895 exit(1);
3896 }
3897 /* Don't override the -realtime option if set */
3898 enable_mlock = enable_mlock ||
3899 qemu_opt_get_bool(opts, "mem-lock", false);
3900 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3901 break;
3902 case QEMU_OPTION_msg:
3903 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3904 false);
3905 if (!opts) {
3906 exit(1);
3907 }
3908 configure_msg(opts);
3909 break;
3910 case QEMU_OPTION_dump_vmstate:
3911 if (vmstate_dump_file) {
3912 error_report("only one '-dump-vmstate' "
3913 "option may be given");
3914 exit(1);
3915 }
3916 vmstate_dump_file = fopen(optarg, "w");
3917 if (vmstate_dump_file == NULL) {
3918 error_report("open %s: %s", optarg, strerror(errno));
3919 exit(1);
3920 }
3921 break;
3922 case QEMU_OPTION_enable_sync_profile:
3923 qsp_enable();
3924 break;
3925 case QEMU_OPTION_nouserconfig:
3926 /* Nothing to be parsed here. Especially, do not error out below. */
3927 break;
3928 default:
3929 if (os_parse_cmd_args(popt->index, optarg)) {
3930 error_report("Option not supported in this build");
3931 exit(1);
3932 }
3933 }
3934 }
3935 }
3936 /*
3937 * Clear error location left behind by the loop.
3938 * Best done right after the loop. Do not insert code here!
3939 */
3940 loc_set_none();
3941
3942 replay_configure(icount_opts);
3943
3944 if (incoming && !preconfig_exit_requested) {
3945 error_report("'preconfig' and 'incoming' options are "
3946 "mutually exclusive");
3947 exit(EXIT_FAILURE);
3948 }
3949
3950 machine_class = select_machine();
3951
3952 set_memory_options(&ram_slots, &maxram_size, machine_class);
3953
3954 os_daemonize();
3955 rcu_disable_atfork();
3956
3957 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3958 error_reportf_err(err, "cannot create PID file: ");
3959 exit(1);
3960 }
3961
3962 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3963 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3964
3965 if (qemu_init_main_loop(&main_loop_err)) {
3966 error_report_err(main_loop_err);
3967 exit(1);
3968 }
3969
3970 #ifdef CONFIG_SECCOMP
3971 olist = qemu_find_opts_err("sandbox", NULL);
3972 if (olist) {
3973 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3974 }
3975 #endif
3976
3977 if (qemu_opts_foreach(qemu_find_opts("name"),
3978 parse_name, NULL, NULL)) {
3979 exit(1);
3980 }
3981
3982 #ifndef _WIN32
3983 qemu_opts_foreach(qemu_find_opts("add-fd"),
3984 parse_add_fd, NULL, &error_fatal);
3985
3986 qemu_opts_foreach(qemu_find_opts("add-fd"),
3987 cleanup_add_fd, NULL, &error_fatal);
3988 #endif
3989
3990 current_machine = MACHINE(object_new(object_class_get_name(
3991 OBJECT_CLASS(machine_class))));
3992 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3993 exit(0);
3994 }
3995 object_property_add_child(object_get_root(), "machine",
3996 OBJECT(current_machine), &error_abort);
3997
3998 if (machine_class->minimum_page_bits) {
3999 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4000 /* This would be a board error: specifying a minimum smaller than
4001 * a target's compile-time fixed setting.
4002 */
4003 g_assert_not_reached();
4004 }
4005 }
4006
4007 cpu_exec_init_all();
4008
4009 if (machine_class->hw_version) {
4010 qemu_set_hw_version(machine_class->hw_version);
4011 }
4012
4013 if (cpu_model && is_help_option(cpu_model)) {
4014 list_cpus(stdout, &fprintf, cpu_model);
4015 exit(0);
4016 }
4017
4018 if (!trace_init_backends()) {
4019 exit(1);
4020 }
4021 trace_init_file(trace_file);
4022
4023 /* Open the logfile at this point and set the log mask if necessary.
4024 */
4025 if (log_file) {
4026 qemu_set_log_filename(log_file, &error_fatal);
4027 }
4028
4029 if (log_mask) {
4030 int mask;
4031 mask = qemu_str_to_log_mask(log_mask);
4032 if (!mask) {
4033 qemu_print_log_usage(stdout);
4034 exit(1);
4035 }
4036 qemu_set_log(mask);
4037 } else {
4038 qemu_set_log(0);
4039 }
4040
4041 /* add configured firmware directories */
4042 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4043 for (i = 0; dirs[i] != NULL; i++) {
4044 qemu_add_data_dir(dirs[i]);
4045 }
4046 g_strfreev(dirs);
4047
4048 /* try to find datadir relative to the executable path */
4049 dir = os_find_datadir();
4050 qemu_add_data_dir(dir);
4051 g_free(dir);
4052
4053 /* add the datadir specified when building */
4054 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4055
4056 /* -L help lists the data directories and exits. */
4057 if (list_data_dirs) {
4058 for (i = 0; i < data_dir_idx; i++) {
4059 printf("%s\n", data_dir[i]);
4060 }
4061 exit(0);
4062 }
4063
4064 /* machine_class: default to UP */
4065 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4066 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4067 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4068
4069 /* default to machine_class->default_cpus */
4070 smp_cpus = machine_class->default_cpus;
4071 max_cpus = machine_class->default_cpus;
4072
4073 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4074
4075 /* sanity-check smp_cpus and max_cpus against machine_class */
4076 if (smp_cpus < machine_class->min_cpus) {
4077 error_report("Invalid SMP CPUs %d. The min CPUs "
4078 "supported by machine '%s' is %d", smp_cpus,
4079 machine_class->name, machine_class->min_cpus);
4080 exit(1);
4081 }
4082 if (max_cpus > machine_class->max_cpus) {
4083 error_report("Invalid SMP CPUs %d. The max CPUs "
4084 "supported by machine '%s' is %d", max_cpus,
4085 machine_class->name, machine_class->max_cpus);
4086 exit(1);
4087 }
4088
4089 /*
4090 * Get the default machine options from the machine if it is not already
4091 * specified either by the configuration file or by the command line.
4092 */
4093 if (machine_class->default_machine_opts) {
4094 qemu_opts_set_defaults(qemu_find_opts("machine"),
4095 machine_class->default_machine_opts, 0);
4096 }
4097
4098 qemu_opts_foreach(qemu_find_opts("device"),
4099 default_driver_check, NULL, NULL);
4100 qemu_opts_foreach(qemu_find_opts("global"),
4101 default_driver_check, NULL, NULL);
4102
4103 if (!vga_model && !default_vga) {
4104 vga_interface_type = VGA_DEVICE;
4105 }
4106 if (!has_defaults || machine_class->no_serial) {
4107 default_serial = 0;
4108 }
4109 if (!has_defaults || machine_class->no_parallel) {
4110 default_parallel = 0;
4111 }
4112 if (!has_defaults || !machine_class->use_virtcon) {
4113 default_virtcon = 0;
4114 }
4115 if (!has_defaults || machine_class->no_floppy) {
4116 default_floppy = 0;
4117 }
4118 if (!has_defaults || machine_class->no_cdrom) {
4119 default_cdrom = 0;
4120 }
4121 if (!has_defaults || machine_class->no_sdcard) {
4122 default_sdcard = 0;
4123 }
4124 if (!has_defaults) {
4125 default_monitor = 0;
4126 default_net = 0;
4127 default_vga = 0;
4128 }
4129
4130 if (is_daemonized()) {
4131 if (!preconfig_exit_requested) {
4132 error_report("'preconfig' and 'daemonize' options are "
4133 "mutually exclusive");
4134 exit(EXIT_FAILURE);
4135 }
4136
4137 /* According to documentation and historically, -nographic redirects
4138 * serial port, parallel port and monitor to stdio, which does not work
4139 * with -daemonize. We can redirect these to null instead, but since
4140 * -nographic is legacy, let's just error out.
4141 * We disallow -nographic only if all other ports are not redirected
4142 * explicitly, to not break existing legacy setups which uses
4143 * -nographic _and_ redirects all ports explicitly - this is valid
4144 * usage, -nographic is just a no-op in this case.
4145 */
4146 if (nographic
4147 && (default_parallel || default_serial
4148 || default_monitor || default_virtcon)) {
4149 error_report("-nographic cannot be used with -daemonize");
4150 exit(1);
4151 }
4152 #ifdef CONFIG_CURSES
4153 if (dpy.type == DISPLAY_TYPE_CURSES) {
4154 error_report("curses display cannot be used with -daemonize");
4155 exit(1);
4156 }
4157 #endif
4158 }
4159
4160 if (nographic) {
4161 if (default_parallel)
4162 add_device_config(DEV_PARALLEL, "null");
4163 if (default_serial && default_monitor) {
4164 add_device_config(DEV_SERIAL, "mon:stdio");
4165 } else if (default_virtcon && default_monitor) {
4166 add_device_config(DEV_VIRTCON, "mon:stdio");
4167 } else {
4168 if (default_serial)
4169 add_device_config(DEV_SERIAL, "stdio");
4170 if (default_virtcon)
4171 add_device_config(DEV_VIRTCON, "stdio");
4172 if (default_monitor)
4173 monitor_parse("stdio", "readline", false);
4174 }
4175 } else {
4176 if (default_serial)
4177 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4178 if (default_parallel)
4179 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4180 if (default_monitor)
4181 monitor_parse("vc:80Cx24C", "readline", false);
4182 if (default_virtcon)
4183 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4184 }
4185
4186 #if defined(CONFIG_VNC)
4187 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4188 display_remote++;
4189 }
4190 #endif
4191 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4192 if (!qemu_display_find_default(&dpy)) {
4193 dpy.type = DISPLAY_TYPE_NONE;
4194 #if defined(CONFIG_VNC)
4195 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4196 #endif
4197 }
4198 }
4199 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4200 dpy.type = DISPLAY_TYPE_NONE;
4201 }
4202
4203 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4204 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4205 "for SDL, ignoring option");
4206 }
4207 if (dpy.has_window_close &&
4208 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4209 error_report("-no-quit is only valid for GTK and SDL, "
4210 "ignoring option");
4211 }
4212
4213 qemu_display_early_init(&dpy);
4214 qemu_console_early_init();
4215
4216 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4217 #if defined(CONFIG_OPENGL)
4218 error_report("OpenGL is not supported by the display");
4219 #else
4220 error_report("OpenGL support is disabled");
4221 #endif
4222 exit(1);
4223 }
4224
4225 page_size_init();
4226 socket_init();
4227
4228 qemu_opts_foreach(qemu_find_opts("object"),
4229 user_creatable_add_opts_foreach,
4230 object_create_initial, &error_fatal);
4231
4232 qemu_opts_foreach(qemu_find_opts("chardev"),
4233 chardev_init_func, NULL, &error_fatal);
4234
4235 #ifdef CONFIG_VIRTFS
4236 qemu_opts_foreach(qemu_find_opts("fsdev"),
4237 fsdev_init_func, NULL, &error_fatal);
4238 #endif
4239
4240 if (qemu_opts_foreach(qemu_find_opts("device"),
4241 device_help_func, NULL, NULL)) {
4242 exit(0);
4243 }
4244
4245 machine_opts = qemu_get_machine_opts();
4246 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4247 &error_fatal);
4248
4249 configure_accelerator(current_machine);
4250
4251 if (!qtest_enabled() && machine_class->deprecation_reason) {
4252 error_report("Machine type '%s' is deprecated: %s",
4253 machine_class->name, machine_class->deprecation_reason);
4254 }
4255
4256 /*
4257 * Register all the global properties, including accel properties,
4258 * machine properties, and user-specified ones.
4259 */
4260 register_global_properties(current_machine);
4261
4262 /*
4263 * Migration object can only be created after global properties
4264 * are applied correctly.
4265 */
4266 migration_object_init();
4267
4268 if (qtest_chrdev) {
4269 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4270 }
4271
4272 machine_opts = qemu_get_machine_opts();
4273 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4274 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4275 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4276 bios_name = qemu_opt_get(machine_opts, "firmware");
4277
4278 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4279 if (opts) {
4280 boot_order = qemu_opt_get(opts, "order");
4281 if (boot_order) {
4282 validate_bootdevices(boot_order, &error_fatal);
4283 }
4284
4285 boot_once = qemu_opt_get(opts, "once");
4286 if (boot_once) {
4287 validate_bootdevices(boot_once, &error_fatal);
4288 }
4289
4290 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4291 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4292 }
4293
4294 if (!boot_order) {
4295 boot_order = machine_class->default_boot_order;
4296 }
4297
4298 if (!kernel_cmdline) {
4299 kernel_cmdline = "";
4300 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4301 }
4302
4303 linux_boot = (kernel_filename != NULL);
4304
4305 if (!linux_boot && *kernel_cmdline != '\0') {
4306 error_report("-append only allowed with -kernel option");
4307 exit(1);
4308 }
4309
4310 if (!linux_boot && initrd_filename != NULL) {
4311 error_report("-initrd only allowed with -kernel option");
4312 exit(1);
4313 }
4314
4315 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4316 /* fall back to the -kernel/-append */
4317 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4318 }
4319
4320 os_set_line_buffering();
4321
4322 /* spice needs the timers to be initialized by this point */
4323 qemu_spice_init();
4324
4325 cpu_ticks_init();
4326 if (icount_opts) {
4327 if (!tcg_enabled()) {
4328 error_report("-icount is not allowed with hardware virtualization");
4329 exit(1);
4330 }
4331 configure_icount(icount_opts, &error_abort);
4332 qemu_opts_del(icount_opts);
4333 }
4334
4335 if (tcg_enabled()) {
4336 qemu_tcg_configure(accel_opts, &error_fatal);
4337 }
4338
4339 if (default_net) {
4340 QemuOptsList *net = qemu_find_opts("net");
4341 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4342 #ifdef CONFIG_SLIRP
4343 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4344 #endif
4345 }
4346
4347 colo_info_init();
4348
4349 if (net_init_clients(&err) < 0) {
4350 error_report_err(err);
4351 exit(1);
4352 }
4353
4354 qemu_opts_foreach(qemu_find_opts("object"),
4355 user_creatable_add_opts_foreach,
4356 object_create_delayed, &error_fatal);
4357
4358 tpm_init();
4359
4360 /* init the bluetooth world */
4361 if (foreach_device_config(DEV_BT, bt_parse))
4362 exit(1);
4363
4364 if (!xen_enabled()) {
4365 /* On 32-bit hosts, QEMU is limited by virtual address space */
4366 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4367 error_report("at most 2047 MB RAM can be simulated");
4368 exit(1);
4369 }
4370 }
4371
4372 blk_mig_init();
4373 ram_mig_init();
4374 dirty_bitmap_mig_init();
4375
4376 /* If the currently selected machine wishes to override the units-per-bus
4377 * property of its default HBA interface type, do so now. */
4378 if (machine_class->units_per_default_bus) {
4379 override_max_devs(machine_class->block_default_type,
4380 machine_class->units_per_default_bus);
4381 }
4382
4383 /* open the virtual block devices */
4384 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4385 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4386
4387 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4388 loc_push_restore(&bdo->loc);
4389 qmp_blockdev_add(bdo->bdo, &error_fatal);
4390 loc_pop(&bdo->loc);
4391 qapi_free_BlockdevOptions(bdo->bdo);
4392 g_free(bdo);
4393 }
4394 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4395 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4396 NULL, NULL);
4397 }
4398 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4399 &machine_class->block_default_type, &error_fatal)) {
4400 /* We printed help */
4401 exit(0);
4402 }
4403
4404 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4405 CDROM_OPTS);
4406 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4407 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4408
4409 qemu_opts_foreach(qemu_find_opts("mon"),
4410 mon_init_func, NULL, &error_fatal);
4411
4412 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4413 exit(1);
4414 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4415 exit(1);
4416 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4417 exit(1);
4418 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4419 exit(1);
4420
4421 /* If no default VGA is requested, the default is "none". */
4422 if (default_vga) {
4423 if (machine_class->default_display) {
4424 vga_model = machine_class->default_display;
4425 } else if (vga_interface_available(VGA_CIRRUS)) {
4426 vga_model = "cirrus";
4427 } else if (vga_interface_available(VGA_STD)) {
4428 vga_model = "std";
4429 }
4430 }
4431 if (vga_model) {
4432 select_vgahw(vga_model);
4433 }
4434
4435 if (watchdog) {
4436 i = select_watchdog(watchdog);
4437 if (i > 0)
4438 exit (i == 1 ? 1 : 0);
4439 }
4440
4441 /* This checkpoint is required by replay to separate prior clock
4442 reading from the other reads, because timer polling functions query
4443 clock values from the log. */
4444 replay_checkpoint(CHECKPOINT_INIT);
4445 qdev_machine_init();
4446
4447 current_machine->ram_size = ram_size;
4448 current_machine->maxram_size = maxram_size;
4449 current_machine->ram_slots = ram_slots;
4450 current_machine->boot_order = boot_order;
4451
4452 /* parse features once if machine provides default cpu_type */
4453 current_machine->cpu_type = machine_class->default_cpu_type;
4454 if (cpu_model) {
4455 current_machine->cpu_type = parse_cpu_model(cpu_model);
4456 }
4457 parse_numa_opts(current_machine);
4458
4459 /* do monitor/qmp handling at preconfig state if requested */
4460 main_loop();
4461
4462 /* from here on runstate is RUN_STATE_PRELAUNCH */
4463 machine_run_board_init(current_machine);
4464
4465 realtime_init();
4466
4467 soundhw_init();
4468
4469 if (hax_enabled()) {
4470 hax_sync_vcpus();
4471 }
4472
4473 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4474 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4475
4476 /* init USB devices */
4477 if (machine_usb(current_machine)) {
4478 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4479 exit(1);
4480 }
4481
4482 /* Check if IGD GFX passthrough. */
4483 igd_gfx_passthru();
4484
4485 /* init generic devices */
4486 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4487 qemu_opts_foreach(qemu_find_opts("device"),
4488 device_init_func, NULL, &error_fatal);
4489
4490 cpu_synchronize_all_post_init();
4491
4492 rom_reset_order_override();
4493
4494 /* Did we create any drives that we failed to create a device for? */
4495 drive_check_orphaned();
4496
4497 /* Don't warn about the default network setup that you get if
4498 * no command line -net or -netdev options are specified. There
4499 * are two cases that we would otherwise complain about:
4500 * (1) board doesn't support a NIC but the implicit "-net nic"
4501 * requested one
4502 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4503 * sets up a nic that isn't connected to anything.
4504 */
4505 if (!default_net && (!qtest_enabled() || has_defaults)) {
4506 net_check_clients();
4507 }
4508
4509 if (boot_once) {
4510 qemu_boot_set(boot_once, &error_fatal);
4511 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4512 }
4513
4514 /* init local displays */
4515 ds = init_displaystate();
4516 qemu_display_init(ds, &dpy);
4517
4518 /* must be after terminal init, SDL library changes signal handlers */
4519 os_setup_signal_handling();
4520
4521 /* init remote displays */
4522 #ifdef CONFIG_VNC
4523 qemu_opts_foreach(qemu_find_opts("vnc"),
4524 vnc_init_func, NULL, &error_fatal);
4525 #endif
4526
4527 if (using_spice) {
4528 qemu_spice_display_init();
4529 }
4530
4531 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4532 exit(1);
4533 }
4534
4535 qdev_machine_creation_done();
4536
4537 /* TODO: once all bus devices are qdevified, this should be done
4538 * when bus is created by qdev.c */
4539 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4540 qemu_run_machine_init_done_notifiers();
4541
4542 if (rom_check_and_register_reset() != 0) {
4543 error_report("rom check and register reset failed");
4544 exit(1);
4545 }
4546
4547 replay_start();
4548
4549 /* This checkpoint is required by replay to separate prior clock
4550 reading from the other reads, because timer polling functions query
4551 clock values from the log. */
4552 replay_checkpoint(CHECKPOINT_RESET);
4553 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4554 register_global_state();
4555 if (loadvm) {
4556 Error *local_err = NULL;
4557 if (load_snapshot(loadvm, &local_err) < 0) {
4558 error_report_err(local_err);
4559 autostart = 0;
4560 exit(1);
4561 }
4562 }
4563 if (replay_mode != REPLAY_MODE_NONE) {
4564 replay_vmstate_init();
4565 }
4566
4567 qdev_prop_check_globals();
4568 if (vmstate_dump_file) {
4569 /* dump and exit */
4570 dump_vmstate_json_to_file(vmstate_dump_file);
4571 return 0;
4572 }
4573
4574 if (incoming) {
4575 Error *local_err = NULL;
4576 qemu_start_incoming_migration(incoming, &local_err);
4577 if (local_err) {
4578 error_reportf_err(local_err, "-incoming %s: ", incoming);
4579 exit(1);
4580 }
4581 } else if (autostart) {
4582 vm_start();
4583 }
4584
4585 accel_setup_post(current_machine);
4586 os_setup_post();
4587
4588 main_loop();
4589
4590 gdbserver_cleanup();
4591
4592 /* No more vcpu or device emulation activity beyond this point */
4593 vm_shutdown();
4594
4595 job_cancel_sync_all();
4596 bdrv_close_all();
4597
4598 res_free();
4599
4600 /* vhost-user must be cleaned up before chardevs. */
4601 tpm_cleanup();
4602 net_cleanup();
4603 audio_cleanup();
4604 monitor_cleanup();
4605 qemu_chr_cleanup();
4606 user_creatable_cleanup();
4607 migration_object_finalize();
4608 /* TODO: unref root container, check all devices are ok */
4609
4610 return 0;
4611 }
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