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util/readline: add a space to fix errors by checkpatch tool
[qemu.git] / vl.c
blobb6709514c1bb9fe63642d736386af20fb4e35d12
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/firmware/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 #include "trace-root.h"
110 #include "trace/control.h"
111 #include "qemu/queue.h"
112 #include "sysemu/arch_init.h"
113
114 #include "ui/qemu-spice.h"
115 #include "qapi/string-input-visitor.h"
116 #include "qapi/opts-visitor.h"
117 #include "qapi/clone-visitor.h"
118 #include "qom/object_interfaces.h"
119 #include "exec/semihost.h"
120 #include "crypto/init.h"
121 #include "sysemu/replay.h"
122 #include "qapi/qapi-events-run-state.h"
123 #include "qapi/qapi-visit-block-core.h"
124 #include "qapi/qapi-visit-ui.h"
125 #include "qapi/qapi-commands-block-core.h"
126 #include "qapi/qapi-commands-misc.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133
134 static const char *data_dir[16];
135 static int data_dir_idx;
136 const char *bios_name = NULL;
137 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
138 int display_opengl;
139 const char* keyboard_layout = NULL;
140 ram_addr_t ram_size;
141 const char *mem_path = NULL;
142 int mem_prealloc = 0; /* force preallocation of physical target memory */
143 bool enable_mlock = false;
144 bool enable_cpu_pm = false;
145 int nb_nics;
146 NICInfo nd_table[MAX_NICS];
147 int autostart;
148 static enum {
149 RTC_BASE_UTC,
150 RTC_BASE_LOCALTIME,
151 RTC_BASE_DATETIME,
152 } rtc_base_type = RTC_BASE_UTC;
153 static time_t rtc_ref_start_datetime;
154 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
155 static int rtc_host_datetime_offset = -1; /* valid & used only with
156 RTC_BASE_DATETIME */
157 QEMUClockType rtc_clock;
158 int vga_interface_type = VGA_NONE;
159 static DisplayOptions dpy;
160 static int num_serial_hds;
161 static Chardev **serial_hds;
162 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
163 int win2k_install_hack = 0;
164 int singlestep = 0;
165 int smp_cpus;
166 unsigned int max_cpus;
167 int smp_cores = 1;
168 int smp_threads = 1;
169 int acpi_enabled = 1;
170 int no_hpet = 0;
171 int fd_bootchk = 1;
172 static int no_reboot;
173 int no_shutdown = 0;
174 int cursor_hide = 1;
175 int graphic_rotate = 0;
176 const char *watchdog;
177 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
178 int nb_option_roms;
179 int old_param = 0;
180 const char *qemu_name;
181 int alt_grab = 0;
182 int ctrl_grab = 0;
183 unsigned int nb_prom_envs = 0;
184 const char *prom_envs[MAX_PROM_ENVS];
185 int boot_menu;
186 bool boot_strict;
187 uint8_t *boot_splash_filedata;
188 int only_migratable; /* turn it off unless user states otherwise */
189 bool wakeup_suspend_enabled;
190
191 int icount_align_option;
192
193 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
194 * little-endian "wire format" described in the SMBIOS 2.6 specification.
195 */
196 QemuUUID qemu_uuid;
197 bool qemu_uuid_set;
198
199 static NotifierList exit_notifiers =
200 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
201
202 static NotifierList machine_init_done_notifiers =
203 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
204
205 bool xen_allowed;
206 uint32_t xen_domid;
207 enum xen_mode xen_mode = XEN_EMULATE;
208 bool xen_domid_restrict;
209
210 static int has_defaults = 1;
211 static int default_serial = 1;
212 static int default_parallel = 1;
213 static int default_monitor = 1;
214 static int default_floppy = 1;
215 static int default_cdrom = 1;
216 static int default_sdcard = 1;
217 static int default_vga = 1;
218 static int default_net = 1;
219
220 static struct {
221 const char *driver;
222 int *flag;
223 } default_list[] = {
224 { .driver = "isa-serial", .flag = &default_serial },
225 { .driver = "isa-parallel", .flag = &default_parallel },
226 { .driver = "isa-fdc", .flag = &default_floppy },
227 { .driver = "floppy", .flag = &default_floppy },
228 { .driver = "ide-cd", .flag = &default_cdrom },
229 { .driver = "ide-hd", .flag = &default_cdrom },
230 { .driver = "ide-drive", .flag = &default_cdrom },
231 { .driver = "scsi-cd", .flag = &default_cdrom },
232 { .driver = "scsi-hd", .flag = &default_cdrom },
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 { .driver = "ati-vga", .flag = &default_vga },
241 };
242
243 static QemuOptsList qemu_rtc_opts = {
244 .name = "rtc",
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
246 .merge_lists = true,
247 .desc = {
248 {
249 .name = "base",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "clock",
253 .type = QEMU_OPT_STRING,
254 },{
255 .name = "driftfix",
256 .type = QEMU_OPT_STRING,
257 },
258 { /* end of list */ }
259 },
260 };
261
262 static QemuOptsList qemu_option_rom_opts = {
263 .name = "option-rom",
264 .implied_opt_name = "romfile",
265 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
266 .desc = {
267 {
268 .name = "bootindex",
269 .type = QEMU_OPT_NUMBER,
270 }, {
271 .name = "romfile",
272 .type = QEMU_OPT_STRING,
273 },
274 { /* end of list */ }
275 },
276 };
277
278 static QemuOptsList qemu_machine_opts = {
279 .name = "machine",
280 .implied_opt_name = "type",
281 .merge_lists = true,
282 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
283 .desc = {
284 /*
285 * no elements => accept any
286 * sanity checking will happen later
287 * when setting machine properties
288 */
289 { }
290 },
291 };
292
293 static QemuOptsList qemu_accel_opts = {
294 .name = "accel",
295 .implied_opt_name = "accel",
296 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
297 .merge_lists = true,
298 .desc = {
299 {
300 .name = "accel",
301 .type = QEMU_OPT_STRING,
302 .help = "Select the type of accelerator",
303 },
304 {
305 .name = "thread",
306 .type = QEMU_OPT_STRING,
307 .help = "Enable/disable multi-threaded TCG",
308 },
309 { /* end of list */ }
310 },
311 };
312
313 static QemuOptsList qemu_boot_opts = {
314 .name = "boot-opts",
315 .implied_opt_name = "order",
316 .merge_lists = true,
317 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
318 .desc = {
319 {
320 .name = "order",
321 .type = QEMU_OPT_STRING,
322 }, {
323 .name = "once",
324 .type = QEMU_OPT_STRING,
325 }, {
326 .name = "menu",
327 .type = QEMU_OPT_BOOL,
328 }, {
329 .name = "splash",
330 .type = QEMU_OPT_STRING,
331 }, {
332 .name = "splash-time",
333 .type = QEMU_OPT_NUMBER,
334 }, {
335 .name = "reboot-timeout",
336 .type = QEMU_OPT_NUMBER,
337 }, {
338 .name = "strict",
339 .type = QEMU_OPT_BOOL,
340 },
341 { /*End of list */ }
342 },
343 };
344
345 static QemuOptsList qemu_add_fd_opts = {
346 .name = "add-fd",
347 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
348 .desc = {
349 {
350 .name = "fd",
351 .type = QEMU_OPT_NUMBER,
352 .help = "file descriptor of which a duplicate is added to fd set",
353 },{
354 .name = "set",
355 .type = QEMU_OPT_NUMBER,
356 .help = "ID of the fd set to add fd to",
357 },{
358 .name = "opaque",
359 .type = QEMU_OPT_STRING,
360 .help = "free-form string used to describe fd",
361 },
362 { /* end of list */ }
363 },
364 };
365
366 static QemuOptsList qemu_object_opts = {
367 .name = "object",
368 .implied_opt_name = "qom-type",
369 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
370 .desc = {
371 { }
372 },
373 };
374
375 static QemuOptsList qemu_tpmdev_opts = {
376 .name = "tpmdev",
377 .implied_opt_name = "type",
378 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
379 .desc = {
380 /* options are defined in the TPM backends */
381 { /* end of list */ }
382 },
383 };
384
385 static QemuOptsList qemu_realtime_opts = {
386 .name = "realtime",
387 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
388 .desc = {
389 {
390 .name = "mlock",
391 .type = QEMU_OPT_BOOL,
392 },
393 { /* end of list */ }
394 },
395 };
396
397 static QemuOptsList qemu_overcommit_opts = {
398 .name = "overcommit",
399 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
400 .desc = {
401 {
402 .name = "mem-lock",
403 .type = QEMU_OPT_BOOL,
404 },
405 {
406 .name = "cpu-pm",
407 .type = QEMU_OPT_BOOL,
408 },
409 { /* end of list */ }
410 },
411 };
412
413 static QemuOptsList qemu_msg_opts = {
414 .name = "msg",
415 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
416 .desc = {
417 {
418 .name = "timestamp",
419 .type = QEMU_OPT_BOOL,
420 },
421 { /* end of list */ }
422 },
423 };
424
425 static QemuOptsList qemu_name_opts = {
426 .name = "name",
427 .implied_opt_name = "guest",
428 .merge_lists = true,
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
430 .desc = {
431 {
432 .name = "guest",
433 .type = QEMU_OPT_STRING,
434 .help = "Sets the name of the guest.\n"
435 "This name will be displayed in the SDL window caption.\n"
436 "The name will also be used for the VNC server",
437 }, {
438 .name = "process",
439 .type = QEMU_OPT_STRING,
440 .help = "Sets the name of the QEMU process, as shown in top etc",
441 }, {
442 .name = "debug-threads",
443 .type = QEMU_OPT_BOOL,
444 .help = "When enabled, name the individual threads; defaults off.\n"
445 "NOTE: The thread names are for debugging and not a\n"
446 "stable API.",
447 },
448 { /* End of list */ }
449 },
450 };
451
452 static QemuOptsList qemu_mem_opts = {
453 .name = "memory",
454 .implied_opt_name = "size",
455 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
456 .merge_lists = true,
457 .desc = {
458 {
459 .name = "size",
460 .type = QEMU_OPT_SIZE,
461 },
462 {
463 .name = "slots",
464 .type = QEMU_OPT_NUMBER,
465 },
466 {
467 .name = "maxmem",
468 .type = QEMU_OPT_SIZE,
469 },
470 { /* end of list */ }
471 },
472 };
473
474 static QemuOptsList qemu_icount_opts = {
475 .name = "icount",
476 .implied_opt_name = "shift",
477 .merge_lists = true,
478 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
479 .desc = {
480 {
481 .name = "shift",
482 .type = QEMU_OPT_STRING,
483 }, {
484 .name = "align",
485 .type = QEMU_OPT_BOOL,
486 }, {
487 .name = "sleep",
488 .type = QEMU_OPT_BOOL,
489 }, {
490 .name = "rr",
491 .type = QEMU_OPT_STRING,
492 }, {
493 .name = "rrfile",
494 .type = QEMU_OPT_STRING,
495 }, {
496 .name = "rrsnapshot",
497 .type = QEMU_OPT_STRING,
498 },
499 { /* end of list */ }
500 },
501 };
502
503 static QemuOptsList qemu_semihosting_config_opts = {
504 .name = "semihosting-config",
505 .implied_opt_name = "enable",
506 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
507 .desc = {
508 {
509 .name = "enable",
510 .type = QEMU_OPT_BOOL,
511 }, {
512 .name = "target",
513 .type = QEMU_OPT_STRING,
514 }, {
515 .name = "arg",
516 .type = QEMU_OPT_STRING,
517 },
518 { /* end of list */ }
519 },
520 };
521
522 static QemuOptsList qemu_fw_cfg_opts = {
523 .name = "fw_cfg",
524 .implied_opt_name = "name",
525 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
526 .desc = {
527 {
528 .name = "name",
529 .type = QEMU_OPT_STRING,
530 .help = "Sets the fw_cfg name of the blob to be inserted",
531 }, {
532 .name = "file",
533 .type = QEMU_OPT_STRING,
534 .help = "Sets the name of the file from which "
535 "the fw_cfg blob will be loaded",
536 }, {
537 .name = "string",
538 .type = QEMU_OPT_STRING,
539 .help = "Sets content of the blob to be inserted from a string",
540 },
541 { /* end of list */ }
542 },
543 };
544
545 /**
546 * Get machine options
547 *
548 * Returns: machine options (never null).
549 */
550 QemuOpts *qemu_get_machine_opts(void)
551 {
552 return qemu_find_opts_singleton("machine");
553 }
554
555 const char *qemu_get_vm_name(void)
556 {
557 return qemu_name;
558 }
559
560 static void res_free(void)
561 {
562 g_free(boot_splash_filedata);
563 boot_splash_filedata = NULL;
564 }
565
566 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
567 {
568 const char *driver = qemu_opt_get(opts, "driver");
569 int i;
570
571 if (!driver)
572 return 0;
573 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
574 if (strcmp(default_list[i].driver, driver) != 0)
575 continue;
576 *(default_list[i].flag) = 0;
577 }
578 return 0;
579 }
580
581 /***********************************************************/
582 /* QEMU state */
583
584 static RunState current_run_state = RUN_STATE_PRECONFIG;
585
586 /* We use RUN_STATE__MAX but any invalid value will do */
587 static RunState vmstop_requested = RUN_STATE__MAX;
588 static QemuMutex vmstop_lock;
589
590 typedef struct {
591 RunState from;
592 RunState to;
593 } RunStateTransition;
594
595 static const RunStateTransition runstate_transitions_def[] = {
596 /* from -> to */
597 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
598 /* Early switch to inmigrate state to allow -incoming CLI option work
599 * as it used to. TODO: delay actual switching to inmigrate state to
600 * the point after machine is built and remove this hack.
601 */
602 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
603
604 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
605 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
607
608 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
609 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
610 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
611 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
612 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
613 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
615 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
616 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
617 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
618 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
619 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
620
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
622 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
624
625 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
626 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
627 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
628
629 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
630 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
632 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
633 { RUN_STATE_PAUSED, RUN_STATE_COLO},
634
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
636 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
638
639 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
640 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
641 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
642
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
648
649 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
650 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
651
652 { RUN_STATE_COLO, RUN_STATE_RUNNING },
653
654 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
655 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
656 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
657 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
658 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
660 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
661 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
662 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
663 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
664 { RUN_STATE_RUNNING, RUN_STATE_COLO},
665
666 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
667
668 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
669 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
670 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
671
672 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
673 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
674 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
675 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
677 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
678
679 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
680 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
681 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
682 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
683
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
685 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
686 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
687
688 { RUN_STATE__MAX, RUN_STATE__MAX },
689 };
690
691 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
692
693 bool runstate_check(RunState state)
694 {
695 return current_run_state == state;
696 }
697
698 bool runstate_store(char *str, size_t size)
699 {
700 const char *state = RunState_str(current_run_state);
701 size_t len = strlen(state) + 1;
702
703 if (len > size) {
704 return false;
705 }
706 memcpy(str, state, len);
707 return true;
708 }
709
710 static void runstate_init(void)
711 {
712 const RunStateTransition *p;
713
714 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
715 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
716 runstate_valid_transitions[p->from][p->to] = true;
717 }
718
719 qemu_mutex_init(&vmstop_lock);
720 }
721
722 /* This function will abort() on invalid state transitions */
723 void runstate_set(RunState new_state)
724 {
725 assert(new_state < RUN_STATE__MAX);
726
727 trace_runstate_set(current_run_state, RunState_str(current_run_state),
728 new_state, RunState_str(new_state));
729
730 if (current_run_state == new_state) {
731 return;
732 }
733
734 if (!runstate_valid_transitions[current_run_state][new_state]) {
735 error_report("invalid runstate transition: '%s' -> '%s'",
736 RunState_str(current_run_state),
737 RunState_str(new_state));
738 abort();
739 }
740
741 current_run_state = new_state;
742 }
743
744 int runstate_is_running(void)
745 {
746 return runstate_check(RUN_STATE_RUNNING);
747 }
748
749 bool runstate_needs_reset(void)
750 {
751 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
752 runstate_check(RUN_STATE_SHUTDOWN);
753 }
754
755 StatusInfo *qmp_query_status(Error **errp)
756 {
757 StatusInfo *info = g_malloc0(sizeof(*info));
758
759 info->running = runstate_is_running();
760 info->singlestep = singlestep;
761 info->status = current_run_state;
762
763 return info;
764 }
765
766 bool qemu_vmstop_requested(RunState *r)
767 {
768 qemu_mutex_lock(&vmstop_lock);
769 *r = vmstop_requested;
770 vmstop_requested = RUN_STATE__MAX;
771 qemu_mutex_unlock(&vmstop_lock);
772 return *r < RUN_STATE__MAX;
773 }
774
775 void qemu_system_vmstop_request_prepare(void)
776 {
777 qemu_mutex_lock(&vmstop_lock);
778 }
779
780 void qemu_system_vmstop_request(RunState state)
781 {
782 vmstop_requested = state;
783 qemu_mutex_unlock(&vmstop_lock);
784 qemu_notify_event();
785 }
786
787 /***********************************************************/
788 /* RTC reference time/date access */
789 static time_t qemu_ref_timedate(QEMUClockType clock)
790 {
791 time_t value = qemu_clock_get_ms(clock) / 1000;
792 switch (clock) {
793 case QEMU_CLOCK_REALTIME:
794 value -= rtc_realtime_clock_offset;
795 /* no break */
796 case QEMU_CLOCK_VIRTUAL:
797 value += rtc_ref_start_datetime;
798 break;
799 case QEMU_CLOCK_HOST:
800 if (rtc_base_type == RTC_BASE_DATETIME) {
801 value -= rtc_host_datetime_offset;
802 }
803 break;
804 default:
805 assert(0);
806 }
807 return value;
808 }
809
810 void qemu_get_timedate(struct tm *tm, int offset)
811 {
812 time_t ti = qemu_ref_timedate(rtc_clock);
813
814 ti += offset;
815
816 switch (rtc_base_type) {
817 case RTC_BASE_DATETIME:
818 case RTC_BASE_UTC:
819 gmtime_r(&ti, tm);
820 break;
821 case RTC_BASE_LOCALTIME:
822 localtime_r(&ti, tm);
823 break;
824 }
825 }
826
827 int qemu_timedate_diff(struct tm *tm)
828 {
829 time_t seconds;
830
831 switch (rtc_base_type) {
832 case RTC_BASE_DATETIME:
833 case RTC_BASE_UTC:
834 seconds = mktimegm(tm);
835 break;
836 case RTC_BASE_LOCALTIME:
837 {
838 struct tm tmp = *tm;
839 tmp.tm_isdst = -1; /* use timezone to figure it out */
840 seconds = mktime(&tmp);
841 break;
842 }
843 default:
844 abort();
845 }
846
847 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
848 }
849
850 static void configure_rtc_base_datetime(const char *startdate)
851 {
852 time_t rtc_start_datetime;
853 struct tm tm;
854
855 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
856 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
857 /* OK */
858 } else if (sscanf(startdate, "%d-%d-%d",
859 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
860 tm.tm_hour = 0;
861 tm.tm_min = 0;
862 tm.tm_sec = 0;
863 } else {
864 goto date_fail;
865 }
866 tm.tm_year -= 1900;
867 tm.tm_mon--;
868 rtc_start_datetime = mktimegm(&tm);
869 if (rtc_start_datetime == -1) {
870 date_fail:
871 error_report("invalid datetime format");
872 error_printf("valid formats: "
873 "'2006-06-17T16:01:21' or '2006-06-17'\n");
874 exit(1);
875 }
876 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
877 rtc_ref_start_datetime = rtc_start_datetime;
878 }
879
880 static void configure_rtc(QemuOpts *opts)
881 {
882 const char *value;
883
884 /* Set defaults */
885 rtc_clock = QEMU_CLOCK_HOST;
886 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
887 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
888
889 value = qemu_opt_get(opts, "base");
890 if (value) {
891 if (!strcmp(value, "utc")) {
892 rtc_base_type = RTC_BASE_UTC;
893 } else if (!strcmp(value, "localtime")) {
894 Error *blocker = NULL;
895 rtc_base_type = RTC_BASE_LOCALTIME;
896 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
897 "-rtc base=localtime");
898 replay_add_blocker(blocker);
899 } else {
900 rtc_base_type = RTC_BASE_DATETIME;
901 configure_rtc_base_datetime(value);
902 }
903 }
904 value = qemu_opt_get(opts, "clock");
905 if (value) {
906 if (!strcmp(value, "host")) {
907 rtc_clock = QEMU_CLOCK_HOST;
908 } else if (!strcmp(value, "rt")) {
909 rtc_clock = QEMU_CLOCK_REALTIME;
910 } else if (!strcmp(value, "vm")) {
911 rtc_clock = QEMU_CLOCK_VIRTUAL;
912 } else {
913 error_report("invalid option value '%s'", value);
914 exit(1);
915 }
916 }
917 value = qemu_opt_get(opts, "driftfix");
918 if (value) {
919 if (!strcmp(value, "slew")) {
920 static GlobalProperty slew_lost_ticks = {
921 .driver = "mc146818rtc",
922 .property = "lost_tick_policy",
923 .value = "slew",
924 };
925
926 qdev_prop_register_global(&slew_lost_ticks);
927 } else if (!strcmp(value, "none")) {
928 /* discard is default */
929 } else {
930 error_report("invalid option value '%s'", value);
931 exit(1);
932 }
933 }
934 }
935
936 /***********************************************************/
937 /* Bluetooth support */
938 static int nb_hcis;
939 static int cur_hci;
940 static struct HCIInfo *hci_table[MAX_NICS];
941
942 struct HCIInfo *qemu_next_hci(void)
943 {
944 if (cur_hci == nb_hcis)
945 return &null_hci;
946
947 return hci_table[cur_hci++];
948 }
949
950 static int bt_hci_parse(const char *str)
951 {
952 struct HCIInfo *hci;
953 bdaddr_t bdaddr;
954
955 if (nb_hcis >= MAX_NICS) {
956 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
957 return -1;
958 }
959
960 hci = hci_init(str);
961 if (!hci)
962 return -1;
963
964 bdaddr.b[0] = 0x52;
965 bdaddr.b[1] = 0x54;
966 bdaddr.b[2] = 0x00;
967 bdaddr.b[3] = 0x12;
968 bdaddr.b[4] = 0x34;
969 bdaddr.b[5] = 0x56 + nb_hcis;
970 hci->bdaddr_set(hci, bdaddr.b);
971
972 hci_table[nb_hcis++] = hci;
973
974 return 0;
975 }
976
977 static void bt_vhci_add(int vlan_id)
978 {
979 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
980
981 if (!vlan->slave)
982 warn_report("adding a VHCI to an empty scatternet %i",
983 vlan_id);
984
985 bt_vhci_init(bt_new_hci(vlan));
986 }
987
988 static struct bt_device_s *bt_device_add(const char *opt)
989 {
990 struct bt_scatternet_s *vlan;
991 int vlan_id = 0;
992 char *endp = strstr(opt, ",vlan=");
993 int len = (endp ? endp - opt : strlen(opt)) + 1;
994 char devname[10];
995
996 pstrcpy(devname, MIN(sizeof(devname), len), opt);
997
998 if (endp) {
999 vlan_id = strtol(endp + 6, &endp, 0);
1000 if (*endp) {
1001 error_report("unrecognised bluetooth vlan Id");
1002 return 0;
1003 }
1004 }
1005
1006 vlan = qemu_find_bt_vlan(vlan_id);
1007
1008 if (!vlan->slave)
1009 warn_report("adding a slave device to an empty scatternet %i",
1010 vlan_id);
1011
1012 if (!strcmp(devname, "keyboard"))
1013 return bt_keyboard_init(vlan);
1014
1015 error_report("unsupported bluetooth device '%s'", devname);
1016 return 0;
1017 }
1018
1019 static int bt_parse(const char *opt)
1020 {
1021 const char *endp, *p;
1022 int vlan;
1023
1024 if (strstart(opt, "hci", &endp)) {
1025 if (!*endp || *endp == ',') {
1026 if (*endp)
1027 if (!strstart(endp, ",vlan=", 0))
1028 opt = endp + 1;
1029
1030 return bt_hci_parse(opt);
1031 }
1032 } else if (strstart(opt, "vhci", &endp)) {
1033 if (!*endp || *endp == ',') {
1034 if (*endp) {
1035 if (strstart(endp, ",vlan=", &p)) {
1036 vlan = strtol(p, (char **) &endp, 0);
1037 if (*endp) {
1038 error_report("bad scatternet '%s'", p);
1039 return 1;
1040 }
1041 } else {
1042 error_report("bad parameter '%s'", endp + 1);
1043 return 1;
1044 }
1045 } else
1046 vlan = 0;
1047
1048 bt_vhci_add(vlan);
1049 return 0;
1050 }
1051 } else if (strstart(opt, "device:", &endp))
1052 return !bt_device_add(endp);
1053
1054 error_report("bad bluetooth parameter '%s'", opt);
1055 return 1;
1056 }
1057
1058 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1059 {
1060 const char *proc_name;
1061
1062 if (qemu_opt_get(opts, "debug-threads")) {
1063 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1064 }
1065 qemu_name = qemu_opt_get(opts, "guest");
1066
1067 proc_name = qemu_opt_get(opts, "process");
1068 if (proc_name) {
1069 os_set_proc_name(proc_name);
1070 }
1071
1072 return 0;
1073 }
1074
1075 bool defaults_enabled(void)
1076 {
1077 return has_defaults;
1078 }
1079
1080 #ifndef _WIN32
1081 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1082 {
1083 int fd, dupfd, flags;
1084 int64_t fdset_id;
1085 const char *fd_opaque = NULL;
1086 AddfdInfo *fdinfo;
1087
1088 fd = qemu_opt_get_number(opts, "fd", -1);
1089 fdset_id = qemu_opt_get_number(opts, "set", -1);
1090 fd_opaque = qemu_opt_get(opts, "opaque");
1091
1092 if (fd < 0) {
1093 error_setg(errp, "fd option is required and must be non-negative");
1094 return -1;
1095 }
1096
1097 if (fd <= STDERR_FILENO) {
1098 error_setg(errp, "fd cannot be a standard I/O stream");
1099 return -1;
1100 }
1101
1102 /*
1103 * All fds inherited across exec() necessarily have FD_CLOEXEC
1104 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1105 */
1106 flags = fcntl(fd, F_GETFD);
1107 if (flags == -1 || (flags & FD_CLOEXEC)) {
1108 error_setg(errp, "fd is not valid or already in use");
1109 return -1;
1110 }
1111
1112 if (fdset_id < 0) {
1113 error_setg(errp, "set option is required and must be non-negative");
1114 return -1;
1115 }
1116
1117 #ifdef F_DUPFD_CLOEXEC
1118 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1119 #else
1120 dupfd = dup(fd);
1121 if (dupfd != -1) {
1122 qemu_set_cloexec(dupfd);
1123 }
1124 #endif
1125 if (dupfd == -1) {
1126 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1127 return -1;
1128 }
1129
1130 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1131 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1132 &error_abort);
1133 g_free(fdinfo);
1134
1135 return 0;
1136 }
1137
1138 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1139 {
1140 int fd;
1141
1142 fd = qemu_opt_get_number(opts, "fd", -1);
1143 close(fd);
1144
1145 return 0;
1146 }
1147 #endif
1148
1149 /***********************************************************/
1150 /* QEMU Block devices */
1151
1152 #define HD_OPTS "media=disk"
1153 #define CDROM_OPTS "media=cdrom"
1154 #define FD_OPTS ""
1155 #define PFLASH_OPTS ""
1156 #define MTD_OPTS ""
1157 #define SD_OPTS ""
1158
1159 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1160 {
1161 BlockInterfaceType *block_default_type = opaque;
1162
1163 return drive_new(opts, *block_default_type, errp) == NULL;
1164 }
1165
1166 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1167 {
1168 if (qemu_opt_get(opts, "snapshot") == NULL) {
1169 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1170 }
1171 return 0;
1172 }
1173
1174 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1175 int index, const char *optstr)
1176 {
1177 QemuOpts *opts;
1178 DriveInfo *dinfo;
1179
1180 if (!enable || drive_get_by_index(type, index)) {
1181 return;
1182 }
1183
1184 opts = drive_add(type, index, NULL, optstr);
1185 if (snapshot) {
1186 drive_enable_snapshot(NULL, opts, NULL);
1187 }
1188
1189 dinfo = drive_new(opts, type, &error_abort);
1190 dinfo->is_default = true;
1191
1192 }
1193
1194 typedef struct BlockdevOptionsQueueEntry {
1195 BlockdevOptions *bdo;
1196 Location loc;
1197 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1198 } BlockdevOptionsQueueEntry;
1199
1200 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1201
1202 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1203 MachineClass *machine_class, int snapshot)
1204 {
1205 /*
1206 * If the currently selected machine wishes to override the
1207 * units-per-bus property of its default HBA interface type, do so
1208 * now.
1209 */
1210 if (machine_class->units_per_default_bus) {
1211 override_max_devs(machine_class->block_default_type,
1212 machine_class->units_per_default_bus);
1213 }
1214
1215 /* open the virtual block devices */
1216 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1217 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1218
1219 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1220 loc_push_restore(&bdo->loc);
1221 qmp_blockdev_add(bdo->bdo, &error_fatal);
1222 loc_pop(&bdo->loc);
1223 qapi_free_BlockdevOptions(bdo->bdo);
1224 g_free(bdo);
1225 }
1226 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1227 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1228 NULL, NULL);
1229 }
1230 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1231 &machine_class->block_default_type, &error_fatal)) {
1232 /* We printed help */
1233 exit(0);
1234 }
1235
1236 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1237 CDROM_OPTS);
1238 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1239 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1240
1241 }
1242
1243 static QemuOptsList qemu_smp_opts = {
1244 .name = "smp-opts",
1245 .implied_opt_name = "cpus",
1246 .merge_lists = true,
1247 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1248 .desc = {
1249 {
1250 .name = "cpus",
1251 .type = QEMU_OPT_NUMBER,
1252 }, {
1253 .name = "sockets",
1254 .type = QEMU_OPT_NUMBER,
1255 }, {
1256 .name = "cores",
1257 .type = QEMU_OPT_NUMBER,
1258 }, {
1259 .name = "threads",
1260 .type = QEMU_OPT_NUMBER,
1261 }, {
1262 .name = "maxcpus",
1263 .type = QEMU_OPT_NUMBER,
1264 },
1265 { /*End of list */ }
1266 },
1267 };
1268
1269 static void smp_parse(QemuOpts *opts)
1270 {
1271 if (opts) {
1272 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1273 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1274 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1275 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1276
1277 /* compute missing values, prefer sockets over cores over threads */
1278 if (cpus == 0 || sockets == 0) {
1279 cores = cores > 0 ? cores : 1;
1280 threads = threads > 0 ? threads : 1;
1281 if (cpus == 0) {
1282 sockets = sockets > 0 ? sockets : 1;
1283 cpus = cores * threads * sockets;
1284 } else {
1285 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1286 sockets = max_cpus / (cores * threads);
1287 }
1288 } else if (cores == 0) {
1289 threads = threads > 0 ? threads : 1;
1290 cores = cpus / (sockets * threads);
1291 cores = cores > 0 ? cores : 1;
1292 } else if (threads == 0) {
1293 threads = cpus / (cores * sockets);
1294 threads = threads > 0 ? threads : 1;
1295 } else if (sockets * cores * threads < cpus) {
1296 error_report("cpu topology: "
1297 "sockets (%u) * cores (%u) * threads (%u) < "
1298 "smp_cpus (%u)",
1299 sockets, cores, threads, cpus);
1300 exit(1);
1301 }
1302
1303 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1304
1305 if (max_cpus < cpus) {
1306 error_report("maxcpus must be equal to or greater than smp");
1307 exit(1);
1308 }
1309
1310 if (sockets * cores * threads > max_cpus) {
1311 error_report("cpu topology: "
1312 "sockets (%u) * cores (%u) * threads (%u) > "
1313 "maxcpus (%u)",
1314 sockets, cores, threads, max_cpus);
1315 exit(1);
1316 }
1317
1318 if (sockets * cores * threads != max_cpus) {
1319 warn_report("Invalid CPU topology deprecated: "
1320 "sockets (%u) * cores (%u) * threads (%u) "
1321 "!= maxcpus (%u)",
1322 sockets, cores, threads, max_cpus);
1323 }
1324
1325 smp_cpus = cpus;
1326 smp_cores = cores;
1327 smp_threads = threads;
1328 }
1329
1330 if (smp_cpus > 1) {
1331 Error *blocker = NULL;
1332 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1333 replay_add_blocker(blocker);
1334 }
1335 }
1336
1337 static void realtime_init(void)
1338 {
1339 if (enable_mlock) {
1340 if (os_mlock() < 0) {
1341 error_report("locking memory failed");
1342 exit(1);
1343 }
1344 }
1345 }
1346
1347
1348 static void configure_msg(QemuOpts *opts)
1349 {
1350 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1351 }
1352
1353 /***********************************************************/
1354 /* Semihosting */
1355
1356 typedef struct SemihostingConfig {
1357 bool enabled;
1358 SemihostingTarget target;
1359 const char **argv;
1360 int argc;
1361 const char *cmdline; /* concatenated argv */
1362 } SemihostingConfig;
1363
1364 static SemihostingConfig semihosting;
1365
1366 bool semihosting_enabled(void)
1367 {
1368 return semihosting.enabled;
1369 }
1370
1371 SemihostingTarget semihosting_get_target(void)
1372 {
1373 return semihosting.target;
1374 }
1375
1376 const char *semihosting_get_arg(int i)
1377 {
1378 if (i >= semihosting.argc) {
1379 return NULL;
1380 }
1381 return semihosting.argv[i];
1382 }
1383
1384 int semihosting_get_argc(void)
1385 {
1386 return semihosting.argc;
1387 }
1388
1389 const char *semihosting_get_cmdline(void)
1390 {
1391 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1392 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1393 }
1394 return semihosting.cmdline;
1395 }
1396
1397 static int add_semihosting_arg(void *opaque,
1398 const char *name, const char *val,
1399 Error **errp)
1400 {
1401 SemihostingConfig *s = opaque;
1402 if (strcmp(name, "arg") == 0) {
1403 s->argc++;
1404 /* one extra element as g_strjoinv() expects NULL-terminated array */
1405 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1406 s->argv[s->argc - 1] = val;
1407 s->argv[s->argc] = NULL;
1408 }
1409 return 0;
1410 }
1411
1412 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1413 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1414 {
1415 char *cmd_token;
1416
1417 /* argv[0] */
1418 add_semihosting_arg(&semihosting, "arg", file, NULL);
1419
1420 /* split -append and initialize argv[1..n] */
1421 cmd_token = strtok(g_strdup(cmd), " ");
1422 while (cmd_token) {
1423 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1424 cmd_token = strtok(NULL, " ");
1425 }
1426 }
1427
1428 /* Now we still need this for compatibility with XEN. */
1429 bool has_igd_gfx_passthru;
1430 static void igd_gfx_passthru(void)
1431 {
1432 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1433 }
1434
1435 /***********************************************************/
1436 /* USB devices */
1437
1438 static int usb_device_add(const char *devname)
1439 {
1440 USBDevice *dev = NULL;
1441
1442 if (!machine_usb(current_machine)) {
1443 return -1;
1444 }
1445
1446 dev = usbdevice_create(devname);
1447 if (!dev)
1448 return -1;
1449
1450 return 0;
1451 }
1452
1453 static int usb_parse(const char *cmdline)
1454 {
1455 int r;
1456 r = usb_device_add(cmdline);
1457 if (r < 0) {
1458 error_report("could not add USB device '%s'", cmdline);
1459 }
1460 return r;
1461 }
1462
1463 /***********************************************************/
1464 /* machine registration */
1465
1466 MachineState *current_machine;
1467
1468 static MachineClass *find_machine(const char *name, GSList *machines)
1469 {
1470 GSList *el;
1471
1472 for (el = machines; el; el = el->next) {
1473 MachineClass *mc = el->data;
1474
1475 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1476 return mc;
1477 }
1478 }
1479
1480 return NULL;
1481 }
1482
1483 static MachineClass *find_default_machine(GSList *machines)
1484 {
1485 GSList *el;
1486
1487 for (el = machines; el; el = el->next) {
1488 MachineClass *mc = el->data;
1489
1490 if (mc->is_default) {
1491 return mc;
1492 }
1493 }
1494
1495 return NULL;
1496 }
1497
1498 MachineInfoList *qmp_query_machines(Error **errp)
1499 {
1500 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1501 MachineInfoList *mach_list = NULL;
1502
1503 for (el = machines; el; el = el->next) {
1504 MachineClass *mc = el->data;
1505 MachineInfoList *entry;
1506 MachineInfo *info;
1507
1508 info = g_malloc0(sizeof(*info));
1509 if (mc->is_default) {
1510 info->has_is_default = true;
1511 info->is_default = true;
1512 }
1513
1514 if (mc->alias) {
1515 info->has_alias = true;
1516 info->alias = g_strdup(mc->alias);
1517 }
1518
1519 info->name = g_strdup(mc->name);
1520 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1521 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1522
1523 entry = g_malloc0(sizeof(*entry));
1524 entry->value = info;
1525 entry->next = mach_list;
1526 mach_list = entry;
1527 }
1528
1529 g_slist_free(machines);
1530 return mach_list;
1531 }
1532
1533 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1534 {
1535 ObjectProperty *prop;
1536 ObjectPropertyIterator iter;
1537
1538 if (!qemu_opt_has_help_opt(opts)) {
1539 return 0;
1540 }
1541
1542 object_property_iter_init(&iter, OBJECT(machine));
1543 while ((prop = object_property_iter_next(&iter))) {
1544 if (!prop->set) {
1545 continue;
1546 }
1547
1548 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1549 prop->name, prop->type);
1550 if (prop->description) {
1551 printf(" (%s)\n", prop->description);
1552 } else {
1553 printf("\n");
1554 }
1555 }
1556
1557 return 1;
1558 }
1559
1560 struct vm_change_state_entry {
1561 VMChangeStateHandler *cb;
1562 void *opaque;
1563 QLIST_ENTRY (vm_change_state_entry) entries;
1564 };
1565
1566 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1567
1568 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1569 void *opaque)
1570 {
1571 VMChangeStateEntry *e;
1572
1573 e = g_malloc0(sizeof (*e));
1574
1575 e->cb = cb;
1576 e->opaque = opaque;
1577 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1578 return e;
1579 }
1580
1581 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1582 {
1583 QLIST_REMOVE (e, entries);
1584 g_free (e);
1585 }
1586
1587 void vm_state_notify(int running, RunState state)
1588 {
1589 VMChangeStateEntry *e, *next;
1590
1591 trace_vm_state_notify(running, state, RunState_str(state));
1592
1593 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1594 e->cb(e->opaque, running, state);
1595 }
1596 }
1597
1598 static ShutdownCause reset_requested;
1599 static ShutdownCause shutdown_requested;
1600 static int shutdown_signal;
1601 static pid_t shutdown_pid;
1602 static int powerdown_requested;
1603 static int debug_requested;
1604 static int suspend_requested;
1605 static bool preconfig_exit_requested = true;
1606 static WakeupReason wakeup_reason;
1607 static NotifierList powerdown_notifiers =
1608 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1609 static NotifierList suspend_notifiers =
1610 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1611 static NotifierList wakeup_notifiers =
1612 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1613 static NotifierList shutdown_notifiers =
1614 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1615 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1616
1617 ShutdownCause qemu_shutdown_requested_get(void)
1618 {
1619 return shutdown_requested;
1620 }
1621
1622 ShutdownCause qemu_reset_requested_get(void)
1623 {
1624 return reset_requested;
1625 }
1626
1627 static int qemu_shutdown_requested(void)
1628 {
1629 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1630 }
1631
1632 static void qemu_kill_report(void)
1633 {
1634 if (!qtest_driver() && shutdown_signal) {
1635 if (shutdown_pid == 0) {
1636 /* This happens for eg ^C at the terminal, so it's worth
1637 * avoiding printing an odd message in that case.
1638 */
1639 error_report("terminating on signal %d", shutdown_signal);
1640 } else {
1641 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1642
1643 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1644 shutdown_signal, shutdown_pid,
1645 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1646 g_free(shutdown_cmd);
1647 }
1648 shutdown_signal = 0;
1649 }
1650 }
1651
1652 static ShutdownCause qemu_reset_requested(void)
1653 {
1654 ShutdownCause r = reset_requested;
1655
1656 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1657 reset_requested = SHUTDOWN_CAUSE_NONE;
1658 return r;
1659 }
1660 return SHUTDOWN_CAUSE_NONE;
1661 }
1662
1663 static int qemu_suspend_requested(void)
1664 {
1665 int r = suspend_requested;
1666 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1667 suspend_requested = 0;
1668 return r;
1669 }
1670 return false;
1671 }
1672
1673 static WakeupReason qemu_wakeup_requested(void)
1674 {
1675 return wakeup_reason;
1676 }
1677
1678 static int qemu_powerdown_requested(void)
1679 {
1680 int r = powerdown_requested;
1681 powerdown_requested = 0;
1682 return r;
1683 }
1684
1685 static int qemu_debug_requested(void)
1686 {
1687 int r = debug_requested;
1688 debug_requested = 0;
1689 return r;
1690 }
1691
1692 void qemu_exit_preconfig_request(void)
1693 {
1694 preconfig_exit_requested = true;
1695 }
1696
1697 /*
1698 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1699 */
1700 void qemu_system_reset(ShutdownCause reason)
1701 {
1702 MachineClass *mc;
1703
1704 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1705
1706 cpu_synchronize_all_states();
1707
1708 if (mc && mc->reset) {
1709 mc->reset();
1710 } else {
1711 qemu_devices_reset();
1712 }
1713 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1714 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1715 }
1716 cpu_synchronize_all_post_reset();
1717 }
1718
1719 void qemu_system_guest_panicked(GuestPanicInformation *info)
1720 {
1721 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1722
1723 if (current_cpu) {
1724 current_cpu->crash_occurred = true;
1725 }
1726 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1727 !!info, info);
1728 vm_stop(RUN_STATE_GUEST_PANICKED);
1729 if (!no_shutdown) {
1730 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1731 !!info, info);
1732 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1733 }
1734
1735 if (info) {
1736 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1737 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1738 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1739 info->u.hyper_v.arg1,
1740 info->u.hyper_v.arg2,
1741 info->u.hyper_v.arg3,
1742 info->u.hyper_v.arg4,
1743 info->u.hyper_v.arg5);
1744 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1745 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1746 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1747 info->u.s390.core,
1748 S390CrashReason_str(info->u.s390.reason),
1749 info->u.s390.psw_mask,
1750 info->u.s390.psw_addr);
1751 }
1752 qapi_free_GuestPanicInformation(info);
1753 }
1754 }
1755
1756 void qemu_system_reset_request(ShutdownCause reason)
1757 {
1758 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1759 shutdown_requested = reason;
1760 } else {
1761 reset_requested = reason;
1762 }
1763 cpu_stop_current();
1764 qemu_notify_event();
1765 }
1766
1767 static void qemu_system_suspend(void)
1768 {
1769 pause_all_vcpus();
1770 notifier_list_notify(&suspend_notifiers, NULL);
1771 runstate_set(RUN_STATE_SUSPENDED);
1772 qapi_event_send_suspend();
1773 }
1774
1775 void qemu_system_suspend_request(void)
1776 {
1777 if (runstate_check(RUN_STATE_SUSPENDED)) {
1778 return;
1779 }
1780 suspend_requested = 1;
1781 cpu_stop_current();
1782 qemu_notify_event();
1783 }
1784
1785 void qemu_register_suspend_notifier(Notifier *notifier)
1786 {
1787 notifier_list_add(&suspend_notifiers, notifier);
1788 }
1789
1790 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1791 {
1792 trace_system_wakeup_request(reason);
1793
1794 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1795 error_setg(errp,
1796 "Unable to wake up: guest is not in suspended state");
1797 return;
1798 }
1799 if (!(wakeup_reason_mask & (1 << reason))) {
1800 return;
1801 }
1802 runstate_set(RUN_STATE_RUNNING);
1803 wakeup_reason = reason;
1804 qemu_notify_event();
1805 }
1806
1807 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1808 {
1809 if (enabled) {
1810 wakeup_reason_mask |= (1 << reason);
1811 } else {
1812 wakeup_reason_mask &= ~(1 << reason);
1813 }
1814 }
1815
1816 void qemu_register_wakeup_notifier(Notifier *notifier)
1817 {
1818 notifier_list_add(&wakeup_notifiers, notifier);
1819 }
1820
1821 void qemu_register_wakeup_support(void)
1822 {
1823 wakeup_suspend_enabled = true;
1824 }
1825
1826 bool qemu_wakeup_suspend_enabled(void)
1827 {
1828 return wakeup_suspend_enabled;
1829 }
1830
1831 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1832 {
1833 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1834 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1835
1836 return params;
1837 }
1838
1839 void qemu_system_killed(int signal, pid_t pid)
1840 {
1841 shutdown_signal = signal;
1842 shutdown_pid = pid;
1843 no_shutdown = 0;
1844
1845 /* Cannot call qemu_system_shutdown_request directly because
1846 * we are in a signal handler.
1847 */
1848 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1849 qemu_notify_event();
1850 }
1851
1852 void qemu_system_shutdown_request(ShutdownCause reason)
1853 {
1854 trace_qemu_system_shutdown_request(reason);
1855 replay_shutdown_request(reason);
1856 shutdown_requested = reason;
1857 qemu_notify_event();
1858 }
1859
1860 static void qemu_system_powerdown(void)
1861 {
1862 qapi_event_send_powerdown();
1863 notifier_list_notify(&powerdown_notifiers, NULL);
1864 }
1865
1866 static void qemu_system_shutdown(ShutdownCause cause)
1867 {
1868 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1869 notifier_list_notify(&shutdown_notifiers, &cause);
1870 }
1871
1872 void qemu_system_powerdown_request(void)
1873 {
1874 trace_qemu_system_powerdown_request();
1875 powerdown_requested = 1;
1876 qemu_notify_event();
1877 }
1878
1879 void qemu_register_powerdown_notifier(Notifier *notifier)
1880 {
1881 notifier_list_add(&powerdown_notifiers, notifier);
1882 }
1883
1884 void qemu_register_shutdown_notifier(Notifier *notifier)
1885 {
1886 notifier_list_add(&shutdown_notifiers, notifier);
1887 }
1888
1889 void qemu_system_debug_request(void)
1890 {
1891 debug_requested = 1;
1892 qemu_notify_event();
1893 }
1894
1895 static bool main_loop_should_exit(void)
1896 {
1897 RunState r;
1898 ShutdownCause request;
1899
1900 if (preconfig_exit_requested) {
1901 if (runstate_check(RUN_STATE_PRECONFIG)) {
1902 runstate_set(RUN_STATE_PRELAUNCH);
1903 }
1904 preconfig_exit_requested = false;
1905 return true;
1906 }
1907 if (qemu_debug_requested()) {
1908 vm_stop(RUN_STATE_DEBUG);
1909 }
1910 if (qemu_suspend_requested()) {
1911 qemu_system_suspend();
1912 }
1913 request = qemu_shutdown_requested();
1914 if (request) {
1915 qemu_kill_report();
1916 qemu_system_shutdown(request);
1917 if (no_shutdown) {
1918 vm_stop(RUN_STATE_SHUTDOWN);
1919 } else {
1920 return true;
1921 }
1922 }
1923 request = qemu_reset_requested();
1924 if (request) {
1925 pause_all_vcpus();
1926 qemu_system_reset(request);
1927 resume_all_vcpus();
1928 if (!runstate_check(RUN_STATE_RUNNING) &&
1929 !runstate_check(RUN_STATE_INMIGRATE)) {
1930 runstate_set(RUN_STATE_PRELAUNCH);
1931 }
1932 }
1933 if (qemu_wakeup_requested()) {
1934 pause_all_vcpus();
1935 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1936 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1937 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1938 resume_all_vcpus();
1939 qapi_event_send_wakeup();
1940 }
1941 if (qemu_powerdown_requested()) {
1942 qemu_system_powerdown();
1943 }
1944 if (qemu_vmstop_requested(&r)) {
1945 vm_stop(r);
1946 }
1947 return false;
1948 }
1949
1950 static void main_loop(void)
1951 {
1952 #ifdef CONFIG_PROFILER
1953 int64_t ti;
1954 #endif
1955 while (!main_loop_should_exit()) {
1956 #ifdef CONFIG_PROFILER
1957 ti = profile_getclock();
1958 #endif
1959 main_loop_wait(false);
1960 #ifdef CONFIG_PROFILER
1961 dev_time += profile_getclock() - ti;
1962 #endif
1963 }
1964 }
1965
1966 static void version(void)
1967 {
1968 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1969 QEMU_COPYRIGHT "\n");
1970 }
1971
1972 static void help(int exitcode)
1973 {
1974 version();
1975 printf("usage: %s [options] [disk_image]\n\n"
1976 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1977 error_get_progname());
1978
1979 #define QEMU_OPTIONS_GENERATE_HELP
1980 #include "qemu-options-wrapper.h"
1981
1982 printf("\nDuring emulation, the following keys are useful:\n"
1983 "ctrl-alt-f toggle full screen\n"
1984 "ctrl-alt-n switch to virtual console 'n'\n"
1985 "ctrl-alt toggle mouse and keyboard grab\n"
1986 "\n"
1987 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1988 "\n"
1989 QEMU_HELP_BOTTOM "\n");
1990
1991 exit(exitcode);
1992 }
1993
1994 #define HAS_ARG 0x0001
1995
1996 typedef struct QEMUOption {
1997 const char *name;
1998 int flags;
1999 int index;
2000 uint32_t arch_mask;
2001 } QEMUOption;
2002
2003 static const QEMUOption qemu_options[] = {
2004 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2005 #define QEMU_OPTIONS_GENERATE_OPTIONS
2006 #include "qemu-options-wrapper.h"
2007 { NULL },
2008 };
2009
2010 typedef struct VGAInterfaceInfo {
2011 const char *opt_name; /* option name */
2012 const char *name; /* human-readable name */
2013 /* Class names indicating that support is available.
2014 * If no class is specified, the interface is always available */
2015 const char *class_names[2];
2016 } VGAInterfaceInfo;
2017
2018 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2019 [VGA_NONE] = {
2020 .opt_name = "none",
2021 },
2022 [VGA_STD] = {
2023 .opt_name = "std",
2024 .name = "standard VGA",
2025 .class_names = { "VGA", "isa-vga" },
2026 },
2027 [VGA_CIRRUS] = {
2028 .opt_name = "cirrus",
2029 .name = "Cirrus VGA",
2030 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2031 },
2032 [VGA_VMWARE] = {
2033 .opt_name = "vmware",
2034 .name = "VMWare SVGA",
2035 .class_names = { "vmware-svga" },
2036 },
2037 [VGA_VIRTIO] = {
2038 .opt_name = "virtio",
2039 .name = "Virtio VGA",
2040 .class_names = { "virtio-vga" },
2041 },
2042 [VGA_QXL] = {
2043 .opt_name = "qxl",
2044 .name = "QXL VGA",
2045 .class_names = { "qxl-vga" },
2046 },
2047 [VGA_TCX] = {
2048 .opt_name = "tcx",
2049 .name = "TCX framebuffer",
2050 .class_names = { "SUNW,tcx" },
2051 },
2052 [VGA_CG3] = {
2053 .opt_name = "cg3",
2054 .name = "CG3 framebuffer",
2055 .class_names = { "cgthree" },
2056 },
2057 [VGA_XENFB] = {
2058 .opt_name = "xenfb",
2059 },
2060 };
2061
2062 static bool vga_interface_available(VGAInterfaceType t)
2063 {
2064 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2065
2066 assert(t < VGA_TYPE_MAX);
2067 return !ti->class_names[0] ||
2068 object_class_by_name(ti->class_names[0]) ||
2069 object_class_by_name(ti->class_names[1]);
2070 }
2071
2072 static const char *
2073 get_default_vga_model(const MachineClass *machine_class)
2074 {
2075 if (machine_class->default_display) {
2076 return machine_class->default_display;
2077 } else if (vga_interface_available(VGA_CIRRUS)) {
2078 return "cirrus";
2079 } else if (vga_interface_available(VGA_STD)) {
2080 return "std";
2081 }
2082
2083 return NULL;
2084 }
2085
2086 static void select_vgahw(const MachineClass *machine_class, const char *p)
2087 {
2088 const char *opts;
2089 int t;
2090
2091 if (g_str_equal(p, "help")) {
2092 const char *def = get_default_vga_model(machine_class);
2093
2094 for (t = 0; t < VGA_TYPE_MAX; t++) {
2095 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2096
2097 if (vga_interface_available(t) && ti->opt_name) {
2098 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
2099 g_str_equal(ti->opt_name, def) ? " (default)" : "");
2100 }
2101 }
2102 exit(0);
2103 }
2104
2105 assert(vga_interface_type == VGA_NONE);
2106 for (t = 0; t < VGA_TYPE_MAX; t++) {
2107 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2108 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2109 if (!vga_interface_available(t)) {
2110 error_report("%s not available", ti->name);
2111 exit(1);
2112 }
2113 vga_interface_type = t;
2114 break;
2115 }
2116 }
2117 if (t == VGA_TYPE_MAX) {
2118 invalid_vga:
2119 error_report("unknown vga type: %s", p);
2120 exit(1);
2121 }
2122 while (*opts) {
2123 const char *nextopt;
2124
2125 if (strstart(opts, ",retrace=", &nextopt)) {
2126 opts = nextopt;
2127 if (strstart(opts, "dumb", &nextopt))
2128 vga_retrace_method = VGA_RETRACE_DUMB;
2129 else if (strstart(opts, "precise", &nextopt))
2130 vga_retrace_method = VGA_RETRACE_PRECISE;
2131 else goto invalid_vga;
2132 } else goto invalid_vga;
2133 opts = nextopt;
2134 }
2135 }
2136
2137 static void parse_display_qapi(const char *optarg)
2138 {
2139 DisplayOptions *opts;
2140 Visitor *v;
2141
2142 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2143
2144 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2145 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2146
2147 qapi_free_DisplayOptions(opts);
2148 visit_free(v);
2149 }
2150
2151 DisplayOptions *qmp_query_display_options(Error **errp)
2152 {
2153 return QAPI_CLONE(DisplayOptions, &dpy);
2154 }
2155
2156 static void parse_display(const char *p)
2157 {
2158 const char *opts;
2159
2160 if (strstart(p, "sdl", &opts)) {
2161 /*
2162 * sdl DisplayType needs hand-crafted parser instead of
2163 * parse_display_qapi() due to some options not in
2164 * DisplayOptions, specifically:
2165 * - frame
2166 * Already deprecated.
2167 * - ctrl_grab + alt_grab
2168 * Not clear yet what happens to them long-term. Should
2169 * replaced by something better or deprecated and dropped.
2170 */
2171 dpy.type = DISPLAY_TYPE_SDL;
2172 while (*opts) {
2173 const char *nextopt;
2174
2175 if (strstart(opts, ",alt_grab=", &nextopt)) {
2176 opts = nextopt;
2177 if (strstart(opts, "on", &nextopt)) {
2178 alt_grab = 1;
2179 } else if (strstart(opts, "off", &nextopt)) {
2180 alt_grab = 0;
2181 } else {
2182 goto invalid_sdl_args;
2183 }
2184 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2185 opts = nextopt;
2186 if (strstart(opts, "on", &nextopt)) {
2187 ctrl_grab = 1;
2188 } else if (strstart(opts, "off", &nextopt)) {
2189 ctrl_grab = 0;
2190 } else {
2191 goto invalid_sdl_args;
2192 }
2193 } else if (strstart(opts, ",window_close=", &nextopt)) {
2194 opts = nextopt;
2195 dpy.has_window_close = true;
2196 if (strstart(opts, "on", &nextopt)) {
2197 dpy.window_close = true;
2198 } else if (strstart(opts, "off", &nextopt)) {
2199 dpy.window_close = false;
2200 } else {
2201 goto invalid_sdl_args;
2202 }
2203 } else if (strstart(opts, ",gl=", &nextopt)) {
2204 opts = nextopt;
2205 dpy.has_gl = true;
2206 if (strstart(opts, "on", &nextopt)) {
2207 dpy.gl = DISPLAYGL_MODE_ON;
2208 } else if (strstart(opts, "core", &nextopt)) {
2209 dpy.gl = DISPLAYGL_MODE_CORE;
2210 } else if (strstart(opts, "es", &nextopt)) {
2211 dpy.gl = DISPLAYGL_MODE_ES;
2212 } else if (strstart(opts, "off", &nextopt)) {
2213 dpy.gl = DISPLAYGL_MODE_OFF;
2214 } else {
2215 goto invalid_sdl_args;
2216 }
2217 } else {
2218 invalid_sdl_args:
2219 error_report("invalid SDL option string");
2220 exit(1);
2221 }
2222 opts = nextopt;
2223 }
2224 } else if (strstart(p, "vnc", &opts)) {
2225 /*
2226 * vnc isn't a (local) DisplayType but a protocol for remote
2227 * display access.
2228 */
2229 if (*opts == '=') {
2230 vnc_parse(opts + 1, &error_fatal);
2231 } else {
2232 error_report("VNC requires a display argument vnc=<display>");
2233 exit(1);
2234 }
2235 } else {
2236 parse_display_qapi(p);
2237 }
2238 }
2239
2240 char *qemu_find_file(int type, const char *name)
2241 {
2242 int i;
2243 const char *subdir;
2244 char *buf;
2245
2246 /* Try the name as a straight path first */
2247 if (access(name, R_OK) == 0) {
2248 trace_load_file(name, name);
2249 return g_strdup(name);
2250 }
2251
2252 switch (type) {
2253 case QEMU_FILE_TYPE_BIOS:
2254 subdir = "";
2255 break;
2256 case QEMU_FILE_TYPE_KEYMAP:
2257 subdir = "keymaps/";
2258 break;
2259 default:
2260 abort();
2261 }
2262
2263 for (i = 0; i < data_dir_idx; i++) {
2264 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2265 if (access(buf, R_OK) == 0) {
2266 trace_load_file(name, buf);
2267 return buf;
2268 }
2269 g_free(buf);
2270 }
2271 return NULL;
2272 }
2273
2274 static void qemu_add_data_dir(const char *path)
2275 {
2276 int i;
2277
2278 if (path == NULL) {
2279 return;
2280 }
2281 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2282 return;
2283 }
2284 for (i = 0; i < data_dir_idx; i++) {
2285 if (strcmp(data_dir[i], path) == 0) {
2286 return; /* duplicate */
2287 }
2288 }
2289 data_dir[data_dir_idx++] = g_strdup(path);
2290 }
2291
2292 static inline bool nonempty_str(const char *str)
2293 {
2294 return str && *str;
2295 }
2296
2297 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2298 {
2299 gchar *buf;
2300 size_t size;
2301 const char *name, *file, *str;
2302 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2303
2304 if (fw_cfg == NULL) {
2305 error_setg(errp, "fw_cfg device not available");
2306 return -1;
2307 }
2308 name = qemu_opt_get(opts, "name");
2309 file = qemu_opt_get(opts, "file");
2310 str = qemu_opt_get(opts, "string");
2311
2312 /* we need name and either a file or the content string */
2313 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2314 error_setg(errp, "invalid argument(s)");
2315 return -1;
2316 }
2317 if (nonempty_str(file) && nonempty_str(str)) {
2318 error_setg(errp, "file and string are mutually exclusive");
2319 return -1;
2320 }
2321 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2322 error_setg(errp, "name too long (max. %d char)",
2323 FW_CFG_MAX_FILE_PATH - 1);
2324 return -1;
2325 }
2326 if (strncmp(name, "opt/", 4) != 0) {
2327 warn_report("externally provided fw_cfg item names "
2328 "should be prefixed with \"opt/\"");
2329 }
2330 if (nonempty_str(str)) {
2331 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2332 buf = g_memdup(str, size);
2333 } else {
2334 GError *err = NULL;
2335 if (!g_file_get_contents(file, &buf, &size, &err)) {
2336 error_setg(errp, "can't load %s: %s", file, err->message);
2337 g_error_free(err);
2338 return -1;
2339 }
2340 }
2341 /* For legacy, keep user files in a specific global order. */
2342 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2343 fw_cfg_add_file(fw_cfg, name, buf, size);
2344 fw_cfg_reset_order_override(fw_cfg);
2345 return 0;
2346 }
2347
2348 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2349 {
2350 return qdev_device_help(opts);
2351 }
2352
2353 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2354 {
2355 DeviceState *dev;
2356
2357 dev = qdev_device_add(opts, errp);
2358 if (!dev) {
2359 return -1;
2360 }
2361 object_unref(OBJECT(dev));
2362 return 0;
2363 }
2364
2365 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2366 {
2367 Error *local_err = NULL;
2368
2369 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2370 if (local_err) {
2371 error_propagate(errp, local_err);
2372 return -1;
2373 }
2374 exit(0);
2375 }
2376 return 0;
2377 }
2378
2379 #ifdef CONFIG_VIRTFS
2380 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2381 {
2382 return qemu_fsdev_add(opts, errp);
2383 }
2384 #endif
2385
2386 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2387 {
2388 Chardev *chr;
2389 const char *chardev;
2390 const char *mode;
2391 int flags;
2392
2393 mode = qemu_opt_get(opts, "mode");
2394 if (mode == NULL) {
2395 mode = "readline";
2396 }
2397 if (strcmp(mode, "readline") == 0) {
2398 flags = MONITOR_USE_READLINE;
2399 } else if (strcmp(mode, "control") == 0) {
2400 flags = MONITOR_USE_CONTROL;
2401 } else {
2402 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2403 return -1;
2404 }
2405
2406 if (qemu_opt_get_bool(opts, "pretty", 0))
2407 flags |= MONITOR_USE_PRETTY;
2408
2409 chardev = qemu_opt_get(opts, "chardev");
2410 if (!chardev) {
2411 error_report("chardev is required");
2412 exit(1);
2413 }
2414 chr = qemu_chr_find(chardev);
2415 if (chr == NULL) {
2416 error_setg(errp, "chardev \"%s\" not found", chardev);
2417 return -1;
2418 }
2419
2420 monitor_init(chr, flags);
2421 return 0;
2422 }
2423
2424 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2425 {
2426 static int monitor_device_index = 0;
2427 QemuOpts *opts;
2428 const char *p;
2429 char label[32];
2430
2431 if (strstart(optarg, "chardev:", &p)) {
2432 snprintf(label, sizeof(label), "%s", p);
2433 } else {
2434 snprintf(label, sizeof(label), "compat_monitor%d",
2435 monitor_device_index);
2436 opts = qemu_chr_parse_compat(label, optarg, true);
2437 if (!opts) {
2438 error_report("parse error: %s", optarg);
2439 exit(1);
2440 }
2441 }
2442
2443 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2444 qemu_opt_set(opts, "mode", mode, &error_abort);
2445 qemu_opt_set(opts, "chardev", label, &error_abort);
2446 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2447 monitor_device_index++;
2448 }
2449
2450 struct device_config {
2451 enum {
2452 DEV_USB, /* -usbdevice */
2453 DEV_BT, /* -bt */
2454 DEV_SERIAL, /* -serial */
2455 DEV_PARALLEL, /* -parallel */
2456 DEV_DEBUGCON, /* -debugcon */
2457 DEV_GDB, /* -gdb, -s */
2458 DEV_SCLP, /* s390 sclp */
2459 } type;
2460 const char *cmdline;
2461 Location loc;
2462 QTAILQ_ENTRY(device_config) next;
2463 };
2464
2465 static QTAILQ_HEAD(, device_config) device_configs =
2466 QTAILQ_HEAD_INITIALIZER(device_configs);
2467
2468 static void add_device_config(int type, const char *cmdline)
2469 {
2470 struct device_config *conf;
2471
2472 conf = g_malloc0(sizeof(*conf));
2473 conf->type = type;
2474 conf->cmdline = cmdline;
2475 loc_save(&conf->loc);
2476 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2477 }
2478
2479 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2480 {
2481 struct device_config *conf;
2482 int rc;
2483
2484 QTAILQ_FOREACH(conf, &device_configs, next) {
2485 if (conf->type != type)
2486 continue;
2487 loc_push_restore(&conf->loc);
2488 rc = func(conf->cmdline);
2489 loc_pop(&conf->loc);
2490 if (rc) {
2491 return rc;
2492 }
2493 }
2494 return 0;
2495 }
2496
2497 static int serial_parse(const char *devname)
2498 {
2499 int index = num_serial_hds;
2500 char label[32];
2501
2502 if (strcmp(devname, "none") == 0)
2503 return 0;
2504 snprintf(label, sizeof(label), "serial%d", index);
2505 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2506
2507 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2508 if (!serial_hds[index]) {
2509 error_report("could not connect serial device"
2510 " to character backend '%s'", devname);
2511 return -1;
2512 }
2513 num_serial_hds++;
2514 return 0;
2515 }
2516
2517 Chardev *serial_hd(int i)
2518 {
2519 assert(i >= 0);
2520 if (i < num_serial_hds) {
2521 return serial_hds[i];
2522 }
2523 return NULL;
2524 }
2525
2526 int serial_max_hds(void)
2527 {
2528 return num_serial_hds;
2529 }
2530
2531 static int parallel_parse(const char *devname)
2532 {
2533 static int index = 0;
2534 char label[32];
2535
2536 if (strcmp(devname, "none") == 0)
2537 return 0;
2538 if (index == MAX_PARALLEL_PORTS) {
2539 error_report("too many parallel ports");
2540 exit(1);
2541 }
2542 snprintf(label, sizeof(label), "parallel%d", index);
2543 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2544 if (!parallel_hds[index]) {
2545 error_report("could not connect parallel device"
2546 " to character backend '%s'", devname);
2547 return -1;
2548 }
2549 index++;
2550 return 0;
2551 }
2552
2553 static int debugcon_parse(const char *devname)
2554 {
2555 QemuOpts *opts;
2556
2557 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2558 error_report("invalid character backend '%s'", devname);
2559 exit(1);
2560 }
2561 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2562 if (!opts) {
2563 error_report("already have a debugcon device");
2564 exit(1);
2565 }
2566 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2567 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2568 return 0;
2569 }
2570
2571 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2572 {
2573 const MachineClass *mc1 = a, *mc2 = b;
2574 int res;
2575
2576 if (mc1->family == NULL) {
2577 if (mc2->family == NULL) {
2578 /* Compare standalone machine types against each other; they sort
2579 * in increasing order.
2580 */
2581 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2582 object_class_get_name(OBJECT_CLASS(mc2)));
2583 }
2584
2585 /* Standalone machine types sort after families. */
2586 return 1;
2587 }
2588
2589 if (mc2->family == NULL) {
2590 /* Families sort before standalone machine types. */
2591 return -1;
2592 }
2593
2594 /* Families sort between each other alphabetically increasingly. */
2595 res = strcmp(mc1->family, mc2->family);
2596 if (res != 0) {
2597 return res;
2598 }
2599
2600 /* Within the same family, machine types sort in decreasing order. */
2601 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2602 object_class_get_name(OBJECT_CLASS(mc1)));
2603 }
2604
2605 static MachineClass *machine_parse(const char *name, GSList *machines)
2606 {
2607 MachineClass *mc;
2608 GSList *el;
2609
2610 if (is_help_option(name)) {
2611 printf("Supported machines are:\n");
2612 machines = g_slist_sort(machines, machine_class_cmp);
2613 for (el = machines; el; el = el->next) {
2614 MachineClass *mc = el->data;
2615 if (mc->alias) {
2616 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2617 }
2618 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2619 mc->is_default ? " (default)" : "",
2620 mc->deprecation_reason ? " (deprecated)" : "");
2621 }
2622 exit(0);
2623 }
2624
2625 mc = find_machine(name, machines);
2626 if (!mc) {
2627 error_report("unsupported machine type");
2628 error_printf("Use -machine help to list supported machines\n");
2629 exit(1);
2630 }
2631 return mc;
2632 }
2633
2634 void qemu_add_exit_notifier(Notifier *notify)
2635 {
2636 notifier_list_add(&exit_notifiers, notify);
2637 }
2638
2639 void qemu_remove_exit_notifier(Notifier *notify)
2640 {
2641 notifier_remove(notify);
2642 }
2643
2644 static void qemu_run_exit_notifiers(void)
2645 {
2646 notifier_list_notify(&exit_notifiers, NULL);
2647 }
2648
2649 static const char *pid_file;
2650 static Notifier qemu_unlink_pidfile_notifier;
2651
2652 static void qemu_unlink_pidfile(Notifier *n, void *data)
2653 {
2654 if (pid_file) {
2655 unlink(pid_file);
2656 }
2657 }
2658
2659 bool machine_init_done;
2660
2661 void qemu_add_machine_init_done_notifier(Notifier *notify)
2662 {
2663 notifier_list_add(&machine_init_done_notifiers, notify);
2664 if (machine_init_done) {
2665 notify->notify(notify, NULL);
2666 }
2667 }
2668
2669 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2670 {
2671 notifier_remove(notify);
2672 }
2673
2674 static void qemu_run_machine_init_done_notifiers(void)
2675 {
2676 machine_init_done = true;
2677 notifier_list_notify(&machine_init_done_notifiers, NULL);
2678 }
2679
2680 static const QEMUOption *lookup_opt(int argc, char **argv,
2681 const char **poptarg, int *poptind)
2682 {
2683 const QEMUOption *popt;
2684 int optind = *poptind;
2685 char *r = argv[optind];
2686 const char *optarg;
2687
2688 loc_set_cmdline(argv, optind, 1);
2689 optind++;
2690 /* Treat --foo the same as -foo. */
2691 if (r[1] == '-')
2692 r++;
2693 popt = qemu_options;
2694 for(;;) {
2695 if (!popt->name) {
2696 error_report("invalid option");
2697 exit(1);
2698 }
2699 if (!strcmp(popt->name, r + 1))
2700 break;
2701 popt++;
2702 }
2703 if (popt->flags & HAS_ARG) {
2704 if (optind >= argc) {
2705 error_report("requires an argument");
2706 exit(1);
2707 }
2708 optarg = argv[optind++];
2709 loc_set_cmdline(argv, optind - 2, 2);
2710 } else {
2711 optarg = NULL;
2712 }
2713
2714 *poptarg = optarg;
2715 *poptind = optind;
2716
2717 return popt;
2718 }
2719
2720 static MachineClass *select_machine(void)
2721 {
2722 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2723 MachineClass *machine_class = find_default_machine(machines);
2724 const char *optarg;
2725 QemuOpts *opts;
2726 Location loc;
2727
2728 loc_push_none(&loc);
2729
2730 opts = qemu_get_machine_opts();
2731 qemu_opts_loc_restore(opts);
2732
2733 optarg = qemu_opt_get(opts, "type");
2734 if (optarg) {
2735 machine_class = machine_parse(optarg, machines);
2736 }
2737
2738 if (!machine_class) {
2739 error_report("No machine specified, and there is no default");
2740 error_printf("Use -machine help to list supported machines\n");
2741 exit(1);
2742 }
2743
2744 loc_pop(&loc);
2745 g_slist_free(machines);
2746 return machine_class;
2747 }
2748
2749 static int machine_set_property(void *opaque,
2750 const char *name, const char *value,
2751 Error **errp)
2752 {
2753 Object *obj = OBJECT(opaque);
2754 Error *local_err = NULL;
2755 char *p, *qom_name;
2756
2757 if (strcmp(name, "type") == 0) {
2758 return 0;
2759 }
2760
2761 qom_name = g_strdup(name);
2762 for (p = qom_name; *p; p++) {
2763 if (*p == '_') {
2764 *p = '-';
2765 }
2766 }
2767
2768 object_property_parse(obj, value, qom_name, &local_err);
2769 g_free(qom_name);
2770
2771 if (local_err) {
2772 error_propagate(errp, local_err);
2773 return -1;
2774 }
2775
2776 return 0;
2777 }
2778
2779
2780 /*
2781 * Initial object creation happens before all other
2782 * QEMU data types are created. The majority of objects
2783 * can be created at this point. The rng-egd object
2784 * cannot be created here, as it depends on the chardev
2785 * already existing.
2786 */
2787 static bool object_create_initial(const char *type, QemuOpts *opts)
2788 {
2789 ObjectClass *klass;
2790
2791 if (is_help_option(type)) {
2792 GSList *l, *list;
2793
2794 printf("List of user creatable objects:\n");
2795 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2796 for (l = list; l != NULL; l = l->next) {
2797 ObjectClass *oc = OBJECT_CLASS(l->data);
2798 printf(" %s\n", object_class_get_name(oc));
2799 }
2800 g_slist_free(list);
2801 exit(0);
2802 }
2803
2804 klass = object_class_by_name(type);
2805 if (klass && qemu_opt_has_help_opt(opts)) {
2806 ObjectPropertyIterator iter;
2807 ObjectProperty *prop;
2808 GPtrArray *array = g_ptr_array_new();
2809 int i;
2810
2811 object_class_property_iter_init(&iter, klass);
2812 while ((prop = object_property_iter_next(&iter))) {
2813 GString *str;
2814
2815 if (!prop->set) {
2816 continue;
2817 }
2818
2819 str = g_string_new(NULL);
2820 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2821 if (prop->description) {
2822 if (str->len < 24) {
2823 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2824 }
2825 g_string_append_printf(str, " - %s", prop->description);
2826 }
2827 g_ptr_array_add(array, g_string_free(str, false));
2828 }
2829 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2830 if (array->len > 0) {
2831 printf("%s options:\n", type);
2832 } else {
2833 printf("There are no options for %s.\n", type);
2834 }
2835 for (i = 0; i < array->len; i++) {
2836 printf("%s\n", (char *)array->pdata[i]);
2837 }
2838 g_ptr_array_set_free_func(array, g_free);
2839 g_ptr_array_free(array, true);
2840 exit(0);
2841 }
2842
2843 if (g_str_equal(type, "rng-egd") ||
2844 g_str_has_prefix(type, "pr-manager-")) {
2845 return false;
2846 }
2847
2848 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2849 if (g_str_equal(type, "cryptodev-vhost-user")) {
2850 return false;
2851 }
2852 #endif
2853
2854 /*
2855 * return false for concrete netfilters since
2856 * they depend on netdevs already existing
2857 */
2858 if (g_str_equal(type, "filter-buffer") ||
2859 g_str_equal(type, "filter-dump") ||
2860 g_str_equal(type, "filter-mirror") ||
2861 g_str_equal(type, "filter-redirector") ||
2862 g_str_equal(type, "colo-compare") ||
2863 g_str_equal(type, "filter-rewriter") ||
2864 g_str_equal(type, "filter-replay")) {
2865 return false;
2866 }
2867
2868 /* Memory allocation by backends needs to be done
2869 * after configure_accelerator() (due to the tcg_enabled()
2870 * checks at memory_region_init_*()).
2871 *
2872 * Also, allocation of large amounts of memory may delay
2873 * chardev initialization for too long, and trigger timeouts
2874 * on software that waits for a monitor socket to be created
2875 * (e.g. libvirt).
2876 */
2877 if (g_str_has_prefix(type, "memory-backend-")) {
2878 return false;
2879 }
2880
2881 return true;
2882 }
2883
2884
2885 /*
2886 * The remainder of object creation happens after the
2887 * creation of chardev, fsdev, net clients and device data types.
2888 */
2889 static bool object_create_delayed(const char *type, QemuOpts *opts)
2890 {
2891 return !object_create_initial(type, opts);
2892 }
2893
2894
2895 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2896 MachineClass *mc)
2897 {
2898 uint64_t sz;
2899 const char *mem_str;
2900 const ram_addr_t default_ram_size = mc->default_ram_size;
2901 QemuOpts *opts = qemu_find_opts_singleton("memory");
2902 Location loc;
2903
2904 loc_push_none(&loc);
2905 qemu_opts_loc_restore(opts);
2906
2907 sz = 0;
2908 mem_str = qemu_opt_get(opts, "size");
2909 if (mem_str) {
2910 if (!*mem_str) {
2911 error_report("missing 'size' option value");
2912 exit(EXIT_FAILURE);
2913 }
2914
2915 sz = qemu_opt_get_size(opts, "size", ram_size);
2916
2917 /* Fix up legacy suffix-less format */
2918 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2919 uint64_t overflow_check = sz;
2920
2921 sz *= MiB;
2922 if (sz / MiB != overflow_check) {
2923 error_report("too large 'size' option value");
2924 exit(EXIT_FAILURE);
2925 }
2926 }
2927 }
2928
2929 /* backward compatibility behaviour for case "-m 0" */
2930 if (sz == 0) {
2931 sz = default_ram_size;
2932 }
2933
2934 sz = QEMU_ALIGN_UP(sz, 8192);
2935 ram_size = sz;
2936 if (ram_size != sz) {
2937 error_report("ram size too large");
2938 exit(EXIT_FAILURE);
2939 }
2940
2941 /* store value for the future use */
2942 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2943 *maxram_size = ram_size;
2944
2945 if (qemu_opt_get(opts, "maxmem")) {
2946 uint64_t slots;
2947
2948 sz = qemu_opt_get_size(opts, "maxmem", 0);
2949 slots = qemu_opt_get_number(opts, "slots", 0);
2950 if (sz < ram_size) {
2951 error_report("invalid value of -m option maxmem: "
2952 "maximum memory size (0x%" PRIx64 ") must be at least "
2953 "the initial memory size (0x" RAM_ADDR_FMT ")",
2954 sz, ram_size);
2955 exit(EXIT_FAILURE);
2956 } else if (slots && sz == ram_size) {
2957 error_report("invalid value of -m option maxmem: "
2958 "memory slots were specified but maximum memory size "
2959 "(0x%" PRIx64 ") is equal to the initial memory size "
2960 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2961 exit(EXIT_FAILURE);
2962 }
2963
2964 *maxram_size = sz;
2965 *ram_slots = slots;
2966 } else if (qemu_opt_get(opts, "slots")) {
2967 error_report("invalid -m option value: missing 'maxmem' option");
2968 exit(EXIT_FAILURE);
2969 }
2970
2971 loc_pop(&loc);
2972 }
2973
2974 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2975 {
2976 GlobalProperty *g;
2977
2978 g = g_malloc0(sizeof(*g));
2979 g->driver = qemu_opt_get(opts, "driver");
2980 g->property = qemu_opt_get(opts, "property");
2981 g->value = qemu_opt_get(opts, "value");
2982 qdev_prop_register_global(g);
2983 return 0;
2984 }
2985
2986 static int qemu_read_default_config_file(void)
2987 {
2988 int ret;
2989
2990 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2991 if (ret < 0 && ret != -ENOENT) {
2992 return ret;
2993 }
2994
2995 return 0;
2996 }
2997
2998 static void user_register_global_props(void)
2999 {
3000 qemu_opts_foreach(qemu_find_opts("global"),
3001 global_init_func, NULL, NULL);
3002 }
3003
3004 int main(int argc, char **argv, char **envp)
3005 {
3006 int i;
3007 int snapshot, linux_boot;
3008 const char *initrd_filename;
3009 const char *kernel_filename, *kernel_cmdline;
3010 const char *boot_order = NULL;
3011 const char *boot_once = NULL;
3012 DisplayState *ds;
3013 QemuOpts *opts, *machine_opts;
3014 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3015 QemuOptsList *olist;
3016 int optind;
3017 const char *optarg;
3018 const char *loadvm = NULL;
3019 MachineClass *machine_class;
3020 const char *cpu_option;
3021 const char *vga_model = NULL;
3022 const char *qtest_chrdev = NULL;
3023 const char *qtest_log = NULL;
3024 const char *incoming = NULL;
3025 bool userconfig = true;
3026 bool nographic = false;
3027 int display_remote = 0;
3028 const char *log_mask = NULL;
3029 const char *log_file = NULL;
3030 char *trace_file = NULL;
3031 ram_addr_t maxram_size;
3032 uint64_t ram_slots = 0;
3033 FILE *vmstate_dump_file = NULL;
3034 Error *main_loop_err = NULL;
3035 Error *err = NULL;
3036 bool list_data_dirs = false;
3037 char *dir, **dirs;
3038 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3039
3040 error_init(argv[0]);
3041 module_call_init(MODULE_INIT_TRACE);
3042
3043 qemu_init_cpu_list();
3044 qemu_init_cpu_loop();
3045
3046 qemu_mutex_lock_iothread();
3047
3048 atexit(qemu_run_exit_notifiers);
3049 qemu_init_exec_dir(argv[0]);
3050
3051 module_call_init(MODULE_INIT_QOM);
3052
3053 qemu_add_opts(&qemu_drive_opts);
3054 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3055 qemu_add_drive_opts(&qemu_common_drive_opts);
3056 qemu_add_drive_opts(&qemu_drive_opts);
3057 qemu_add_drive_opts(&bdrv_runtime_opts);
3058 qemu_add_opts(&qemu_chardev_opts);
3059 qemu_add_opts(&qemu_device_opts);
3060 qemu_add_opts(&qemu_netdev_opts);
3061 qemu_add_opts(&qemu_nic_opts);
3062 qemu_add_opts(&qemu_net_opts);
3063 qemu_add_opts(&qemu_rtc_opts);
3064 qemu_add_opts(&qemu_global_opts);
3065 qemu_add_opts(&qemu_mon_opts);
3066 qemu_add_opts(&qemu_trace_opts);
3067 qemu_add_opts(&qemu_option_rom_opts);
3068 qemu_add_opts(&qemu_machine_opts);
3069 qemu_add_opts(&qemu_accel_opts);
3070 qemu_add_opts(&qemu_mem_opts);
3071 qemu_add_opts(&qemu_smp_opts);
3072 qemu_add_opts(&qemu_boot_opts);
3073 qemu_add_opts(&qemu_add_fd_opts);
3074 qemu_add_opts(&qemu_object_opts);
3075 qemu_add_opts(&qemu_tpmdev_opts);
3076 qemu_add_opts(&qemu_realtime_opts);
3077 qemu_add_opts(&qemu_overcommit_opts);
3078 qemu_add_opts(&qemu_msg_opts);
3079 qemu_add_opts(&qemu_name_opts);
3080 qemu_add_opts(&qemu_numa_opts);
3081 qemu_add_opts(&qemu_icount_opts);
3082 qemu_add_opts(&qemu_semihosting_config_opts);
3083 qemu_add_opts(&qemu_fw_cfg_opts);
3084 module_call_init(MODULE_INIT_OPTS);
3085
3086 runstate_init();
3087 precopy_infrastructure_init();
3088 postcopy_infrastructure_init();
3089 monitor_init_globals();
3090
3091 if (qcrypto_init(&err) < 0) {
3092 error_reportf_err(err, "cannot initialize crypto: ");
3093 exit(1);
3094 }
3095
3096 QLIST_INIT (&vm_change_state_head);
3097 os_setup_early_signal_handling();
3098
3099 cpu_option = NULL;
3100 snapshot = 0;
3101
3102 nb_nics = 0;
3103
3104 bdrv_init_with_whitelist();
3105
3106 autostart = 1;
3107
3108 /* first pass of option parsing */
3109 optind = 1;
3110 while (optind < argc) {
3111 if (argv[optind][0] != '-') {
3112 /* disk image */
3113 optind++;
3114 } else {
3115 const QEMUOption *popt;
3116
3117 popt = lookup_opt(argc, argv, &optarg, &optind);
3118 switch (popt->index) {
3119 case QEMU_OPTION_nouserconfig:
3120 userconfig = false;
3121 break;
3122 }
3123 }
3124 }
3125
3126 if (userconfig) {
3127 if (qemu_read_default_config_file() < 0) {
3128 exit(1);
3129 }
3130 }
3131
3132 /* second pass of option parsing */
3133 optind = 1;
3134 for(;;) {
3135 if (optind >= argc)
3136 break;
3137 if (argv[optind][0] != '-') {
3138 loc_set_cmdline(argv, optind, 1);
3139 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3140 } else {
3141 const QEMUOption *popt;
3142
3143 popt = lookup_opt(argc, argv, &optarg, &optind);
3144 if (!(popt->arch_mask & arch_type)) {
3145 error_report("Option not supported for this target");
3146 exit(1);
3147 }
3148 switch(popt->index) {
3149 case QEMU_OPTION_cpu:
3150 /* hw initialization will check this */
3151 cpu_option = optarg;
3152 break;
3153 case QEMU_OPTION_hda:
3154 case QEMU_OPTION_hdb:
3155 case QEMU_OPTION_hdc:
3156 case QEMU_OPTION_hdd:
3157 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3158 HD_OPTS);
3159 break;
3160 case QEMU_OPTION_blockdev:
3161 {
3162 Visitor *v;
3163 BlockdevOptionsQueueEntry *bdo;
3164
3165 v = qobject_input_visitor_new_str(optarg, "driver",
3166 &error_fatal);
3167
3168 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3169 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3170 &error_fatal);
3171 visit_free(v);
3172 loc_save(&bdo->loc);
3173 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3174 break;
3175 }
3176 case QEMU_OPTION_drive:
3177 if (drive_def(optarg) == NULL) {
3178 exit(1);
3179 }
3180 break;
3181 case QEMU_OPTION_set:
3182 if (qemu_set_option(optarg) != 0)
3183 exit(1);
3184 break;
3185 case QEMU_OPTION_global:
3186 if (qemu_global_option(optarg) != 0)
3187 exit(1);
3188 break;
3189 case QEMU_OPTION_mtdblock:
3190 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3191 break;
3192 case QEMU_OPTION_sd:
3193 drive_add(IF_SD, -1, optarg, SD_OPTS);
3194 break;
3195 case QEMU_OPTION_pflash:
3196 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3197 break;
3198 case QEMU_OPTION_snapshot:
3199 snapshot = 1;
3200 break;
3201 case QEMU_OPTION_numa:
3202 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3203 optarg, true);
3204 if (!opts) {
3205 exit(1);
3206 }
3207 break;
3208 case QEMU_OPTION_display:
3209 parse_display(optarg);
3210 break;
3211 case QEMU_OPTION_nographic:
3212 olist = qemu_find_opts("machine");
3213 qemu_opts_parse_noisily(olist, "graphics=off", false);
3214 nographic = true;
3215 dpy.type = DISPLAY_TYPE_NONE;
3216 break;
3217 case QEMU_OPTION_curses:
3218 #ifdef CONFIG_CURSES
3219 dpy.type = DISPLAY_TYPE_CURSES;
3220 #else
3221 error_report("curses or iconv support is disabled");
3222 exit(1);
3223 #endif
3224 break;
3225 case QEMU_OPTION_portrait:
3226 graphic_rotate = 90;
3227 break;
3228 case QEMU_OPTION_rotate:
3229 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3230 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3231 graphic_rotate != 180 && graphic_rotate != 270) {
3232 error_report("only 90, 180, 270 deg rotation is available");
3233 exit(1);
3234 }
3235 break;
3236 case QEMU_OPTION_kernel:
3237 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3238 &error_abort);
3239 break;
3240 case QEMU_OPTION_initrd:
3241 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3242 &error_abort);
3243 break;
3244 case QEMU_OPTION_append:
3245 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3246 &error_abort);
3247 break;
3248 case QEMU_OPTION_dtb:
3249 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3250 &error_abort);
3251 break;
3252 case QEMU_OPTION_cdrom:
3253 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3254 break;
3255 case QEMU_OPTION_boot:
3256 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3257 optarg, true);
3258 if (!opts) {
3259 exit(1);
3260 }
3261 break;
3262 case QEMU_OPTION_fda:
3263 case QEMU_OPTION_fdb:
3264 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3265 optarg, FD_OPTS);
3266 break;
3267 case QEMU_OPTION_no_fd_bootchk:
3268 fd_bootchk = 0;
3269 break;
3270 case QEMU_OPTION_netdev:
3271 default_net = 0;
3272 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3273 exit(1);
3274 }
3275 break;
3276 case QEMU_OPTION_nic:
3277 default_net = 0;
3278 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3279 exit(1);
3280 }
3281 break;
3282 case QEMU_OPTION_net:
3283 default_net = 0;
3284 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3285 exit(1);
3286 }
3287 break;
3288 #ifdef CONFIG_LIBISCSI
3289 case QEMU_OPTION_iscsi:
3290 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3291 optarg, false);
3292 if (!opts) {
3293 exit(1);
3294 }
3295 break;
3296 #endif
3297 case QEMU_OPTION_bt:
3298 warn_report("The bluetooth subsystem is deprecated and will "
3299 "be removed soon. If the bluetooth subsystem is "
3300 "still useful for you, please send a mail to "
3301 "qemu-devel@nongnu.org with your usecase.");
3302 add_device_config(DEV_BT, optarg);
3303 break;
3304 case QEMU_OPTION_audio_help:
3305 audio_legacy_help();
3306 exit (0);
3307 break;
3308 case QEMU_OPTION_audiodev:
3309 audio_parse_option(optarg);
3310 break;
3311 case QEMU_OPTION_soundhw:
3312 select_soundhw (optarg);
3313 break;
3314 case QEMU_OPTION_h:
3315 help(0);
3316 break;
3317 case QEMU_OPTION_version:
3318 version();
3319 exit(0);
3320 break;
3321 case QEMU_OPTION_m:
3322 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3323 optarg, true);
3324 if (!opts) {
3325 exit(EXIT_FAILURE);
3326 }
3327 break;
3328 #ifdef CONFIG_TPM
3329 case QEMU_OPTION_tpmdev:
3330 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3331 exit(1);
3332 }
3333 break;
3334 #endif
3335 case QEMU_OPTION_mempath:
3336 mem_path = optarg;
3337 break;
3338 case QEMU_OPTION_mem_prealloc:
3339 mem_prealloc = 1;
3340 break;
3341 case QEMU_OPTION_d:
3342 log_mask = optarg;
3343 break;
3344 case QEMU_OPTION_D:
3345 log_file = optarg;
3346 break;
3347 case QEMU_OPTION_DFILTER:
3348 qemu_set_dfilter_ranges(optarg, &error_fatal);
3349 break;
3350 case QEMU_OPTION_s:
3351 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3352 break;
3353 case QEMU_OPTION_gdb:
3354 add_device_config(DEV_GDB, optarg);
3355 break;
3356 case QEMU_OPTION_L:
3357 if (is_help_option(optarg)) {
3358 list_data_dirs = true;
3359 } else {
3360 qemu_add_data_dir(optarg);
3361 }
3362 break;
3363 case QEMU_OPTION_bios:
3364 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3365 &error_abort);
3366 break;
3367 case QEMU_OPTION_singlestep:
3368 singlestep = 1;
3369 break;
3370 case QEMU_OPTION_S:
3371 autostart = 0;
3372 break;
3373 case QEMU_OPTION_k:
3374 keyboard_layout = optarg;
3375 break;
3376 case QEMU_OPTION_vga:
3377 vga_model = optarg;
3378 default_vga = 0;
3379 break;
3380 case QEMU_OPTION_g:
3381 {
3382 const char *p;
3383 int w, h, depth;
3384 p = optarg;
3385 w = strtol(p, (char **)&p, 10);
3386 if (w <= 0) {
3387 graphic_error:
3388 error_report("invalid resolution or depth");
3389 exit(1);
3390 }
3391 if (*p != 'x')
3392 goto graphic_error;
3393 p++;
3394 h = strtol(p, (char **)&p, 10);
3395 if (h <= 0)
3396 goto graphic_error;
3397 if (*p == 'x') {
3398 p++;
3399 depth = strtol(p, (char **)&p, 10);
3400 if (depth != 8 && depth != 15 && depth != 16 &&
3401 depth != 24 && depth != 32)
3402 goto graphic_error;
3403 } else if (*p == '\0') {
3404 depth = graphic_depth;
3405 } else {
3406 goto graphic_error;
3407 }
3408
3409 graphic_width = w;
3410 graphic_height = h;
3411 graphic_depth = depth;
3412 }
3413 break;
3414 case QEMU_OPTION_echr:
3415 {
3416 char *r;
3417 term_escape_char = strtol(optarg, &r, 0);
3418 if (r == optarg)
3419 printf("Bad argument to echr\n");
3420 break;
3421 }
3422 case QEMU_OPTION_monitor:
3423 default_monitor = 0;
3424 if (strncmp(optarg, "none", 4)) {
3425 monitor_parse(optarg, "readline", false);
3426 }
3427 break;
3428 case QEMU_OPTION_qmp:
3429 monitor_parse(optarg, "control", false);
3430 default_monitor = 0;
3431 break;
3432 case QEMU_OPTION_qmp_pretty:
3433 monitor_parse(optarg, "control", true);
3434 default_monitor = 0;
3435 break;
3436 case QEMU_OPTION_mon:
3437 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3438 true);
3439 if (!opts) {
3440 exit(1);
3441 }
3442 default_monitor = 0;
3443 break;
3444 case QEMU_OPTION_chardev:
3445 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3446 optarg, true);
3447 if (!opts) {
3448 exit(1);
3449 }
3450 break;
3451 case QEMU_OPTION_fsdev:
3452 olist = qemu_find_opts("fsdev");
3453 if (!olist) {
3454 error_report("fsdev support is disabled");
3455 exit(1);
3456 }
3457 opts = qemu_opts_parse_noisily(olist, optarg, true);
3458 if (!opts) {
3459 exit(1);
3460 }
3461 break;
3462 case QEMU_OPTION_virtfs: {
3463 QemuOpts *fsdev;
3464 QemuOpts *device;
3465 const char *writeout, *sock_fd, *socket, *path, *security_model;
3466
3467 olist = qemu_find_opts("virtfs");
3468 if (!olist) {
3469 error_report("virtfs support is disabled");
3470 exit(1);
3471 }
3472 opts = qemu_opts_parse_noisily(olist, optarg, true);
3473 if (!opts) {
3474 exit(1);
3475 }
3476
3477 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3478 qemu_opt_get(opts, "mount_tag") == NULL) {
3479 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3480 exit(1);
3481 }
3482 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3483 qemu_opts_id(opts) ?:
3484 qemu_opt_get(opts, "mount_tag"),
3485 1, NULL);
3486 if (!fsdev) {
3487 error_report("duplicate or invalid fsdev id: %s",
3488 qemu_opt_get(opts, "mount_tag"));
3489 exit(1);
3490 }
3491
3492 writeout = qemu_opt_get(opts, "writeout");
3493 if (writeout) {
3494 #ifdef CONFIG_SYNC_FILE_RANGE
3495 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3496 #else
3497 error_report("writeout=immediate not supported "
3498 "on this platform");
3499 exit(1);
3500 #endif
3501 }
3502 qemu_opt_set(fsdev, "fsdriver",
3503 qemu_opt_get(opts, "fsdriver"), &error_abort);
3504 path = qemu_opt_get(opts, "path");
3505 if (path) {
3506 qemu_opt_set(fsdev, "path", path, &error_abort);
3507 }
3508 security_model = qemu_opt_get(opts, "security_model");
3509 if (security_model) {
3510 qemu_opt_set(fsdev, "security_model", security_model,
3511 &error_abort);
3512 }
3513 socket = qemu_opt_get(opts, "socket");
3514 if (socket) {
3515 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3516 }
3517 sock_fd = qemu_opt_get(opts, "sock_fd");
3518 if (sock_fd) {
3519 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3520 }
3521
3522 qemu_opt_set_bool(fsdev, "readonly",
3523 qemu_opt_get_bool(opts, "readonly", 0),
3524 &error_abort);
3525 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3526 &error_abort);
3527 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3528 qemu_opt_set(device, "fsdev",
3529 qemu_opts_id(fsdev), &error_abort);
3530 qemu_opt_set(device, "mount_tag",
3531 qemu_opt_get(opts, "mount_tag"), &error_abort);
3532 break;
3533 }
3534 case QEMU_OPTION_virtfs_synth: {
3535 QemuOpts *fsdev;
3536 QemuOpts *device;
3537
3538 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3539 1, NULL);
3540 if (!fsdev) {
3541 error_report("duplicate option: %s", "virtfs_synth");
3542 exit(1);
3543 }
3544 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3545
3546 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3547 &error_abort);
3548 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3549 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3550 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3551 break;
3552 }
3553 case QEMU_OPTION_serial:
3554 add_device_config(DEV_SERIAL, optarg);
3555 default_serial = 0;
3556 if (strncmp(optarg, "mon:", 4) == 0) {
3557 default_monitor = 0;
3558 }
3559 break;
3560 case QEMU_OPTION_watchdog:
3561 if (watchdog) {
3562 error_report("only one watchdog option may be given");
3563 return 1;
3564 }
3565 watchdog = optarg;
3566 break;
3567 case QEMU_OPTION_watchdog_action:
3568 if (select_watchdog_action(optarg) == -1) {
3569 error_report("unknown -watchdog-action parameter");
3570 exit(1);
3571 }
3572 break;
3573 case QEMU_OPTION_parallel:
3574 add_device_config(DEV_PARALLEL, optarg);
3575 default_parallel = 0;
3576 if (strncmp(optarg, "mon:", 4) == 0) {
3577 default_monitor = 0;
3578 }
3579 break;
3580 case QEMU_OPTION_debugcon:
3581 add_device_config(DEV_DEBUGCON, optarg);
3582 break;
3583 case QEMU_OPTION_loadvm:
3584 loadvm = optarg;
3585 break;
3586 case QEMU_OPTION_full_screen:
3587 dpy.has_full_screen = true;
3588 dpy.full_screen = true;
3589 break;
3590 case QEMU_OPTION_alt_grab:
3591 alt_grab = 1;
3592 break;
3593 case QEMU_OPTION_ctrl_grab:
3594 ctrl_grab = 1;
3595 break;
3596 case QEMU_OPTION_no_quit:
3597 dpy.has_window_close = true;
3598 dpy.window_close = false;
3599 break;
3600 case QEMU_OPTION_sdl:
3601 #ifdef CONFIG_SDL
3602 dpy.type = DISPLAY_TYPE_SDL;
3603 break;
3604 #else
3605 error_report("SDL support is disabled");
3606 exit(1);
3607 #endif
3608 case QEMU_OPTION_pidfile:
3609 pid_file = optarg;
3610 break;
3611 case QEMU_OPTION_win2k_hack:
3612 win2k_install_hack = 1;
3613 break;
3614 case QEMU_OPTION_acpitable:
3615 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3616 optarg, true);
3617 if (!opts) {
3618 exit(1);
3619 }
3620 acpi_table_add(opts, &error_fatal);
3621 break;
3622 case QEMU_OPTION_smbios:
3623 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3624 optarg, false);
3625 if (!opts) {
3626 exit(1);
3627 }
3628 smbios_entry_add(opts, &error_fatal);
3629 break;
3630 case QEMU_OPTION_fwcfg:
3631 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3632 optarg, true);
3633 if (opts == NULL) {
3634 exit(1);
3635 }
3636 break;
3637 case QEMU_OPTION_preconfig:
3638 preconfig_exit_requested = false;
3639 break;
3640 case QEMU_OPTION_enable_kvm:
3641 olist = qemu_find_opts("machine");
3642 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3643 break;
3644 case QEMU_OPTION_M:
3645 case QEMU_OPTION_machine:
3646 olist = qemu_find_opts("machine");
3647 opts = qemu_opts_parse_noisily(olist, optarg, true);
3648 if (!opts) {
3649 exit(1);
3650 }
3651 break;
3652 case QEMU_OPTION_no_kvm:
3653 olist = qemu_find_opts("machine");
3654 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3655 break;
3656 case QEMU_OPTION_accel:
3657 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3658 optarg, true);
3659 optarg = qemu_opt_get(accel_opts, "accel");
3660 if (!optarg || is_help_option(optarg)) {
3661 printf("Possible accelerators: kvm, xen, hax, tcg\n");
3662 exit(0);
3663 }
3664 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3665 false, &error_abort);
3666 qemu_opt_set(opts, "accel", optarg, &error_abort);
3667 break;
3668 case QEMU_OPTION_usb:
3669 olist = qemu_find_opts("machine");
3670 qemu_opts_parse_noisily(olist, "usb=on", false);
3671 break;
3672 case QEMU_OPTION_usbdevice:
3673 error_report("'-usbdevice' is deprecated, please use "
3674 "'-device usb-...' instead");
3675 olist = qemu_find_opts("machine");
3676 qemu_opts_parse_noisily(olist, "usb=on", false);
3677 add_device_config(DEV_USB, optarg);
3678 break;
3679 case QEMU_OPTION_device:
3680 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3681 optarg, true)) {
3682 exit(1);
3683 }
3684 break;
3685 case QEMU_OPTION_smp:
3686 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3687 optarg, true)) {
3688 exit(1);
3689 }
3690 break;
3691 case QEMU_OPTION_vnc:
3692 vnc_parse(optarg, &error_fatal);
3693 break;
3694 case QEMU_OPTION_no_acpi:
3695 acpi_enabled = 0;
3696 break;
3697 case QEMU_OPTION_no_hpet:
3698 no_hpet = 1;
3699 break;
3700 case QEMU_OPTION_no_reboot:
3701 no_reboot = 1;
3702 break;
3703 case QEMU_OPTION_no_shutdown:
3704 no_shutdown = 1;
3705 break;
3706 case QEMU_OPTION_show_cursor:
3707 cursor_hide = 0;
3708 break;
3709 case QEMU_OPTION_uuid:
3710 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3711 error_report("failed to parse UUID string: wrong format");
3712 exit(1);
3713 }
3714 qemu_uuid_set = true;
3715 break;
3716 case QEMU_OPTION_option_rom:
3717 if (nb_option_roms >= MAX_OPTION_ROMS) {
3718 error_report("too many option ROMs");
3719 exit(1);
3720 }
3721 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3722 optarg, true);
3723 if (!opts) {
3724 exit(1);
3725 }
3726 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3727 option_rom[nb_option_roms].bootindex =
3728 qemu_opt_get_number(opts, "bootindex", -1);
3729 if (!option_rom[nb_option_roms].name) {
3730 error_report("Option ROM file is not specified");
3731 exit(1);
3732 }
3733 nb_option_roms++;
3734 break;
3735 case QEMU_OPTION_semihosting:
3736 semihosting.enabled = true;
3737 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3738 break;
3739 case QEMU_OPTION_semihosting_config:
3740 semihosting.enabled = true;
3741 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3742 optarg, false);
3743 if (opts != NULL) {
3744 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3745 true);
3746 const char *target = qemu_opt_get(opts, "target");
3747 if (target != NULL) {
3748 if (strcmp("native", target) == 0) {
3749 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3750 } else if (strcmp("gdb", target) == 0) {
3751 semihosting.target = SEMIHOSTING_TARGET_GDB;
3752 } else if (strcmp("auto", target) == 0) {
3753 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3754 } else {
3755 error_report("unsupported semihosting-config %s",
3756 optarg);
3757 exit(1);
3758 }
3759 } else {
3760 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3761 }
3762 /* Set semihosting argument count and vector */
3763 qemu_opt_foreach(opts, add_semihosting_arg,
3764 &semihosting, NULL);
3765 } else {
3766 error_report("unsupported semihosting-config %s", optarg);
3767 exit(1);
3768 }
3769 break;
3770 case QEMU_OPTION_name:
3771 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3772 optarg, true);
3773 if (!opts) {
3774 exit(1);
3775 }
3776 break;
3777 case QEMU_OPTION_prom_env:
3778 if (nb_prom_envs >= MAX_PROM_ENVS) {
3779 error_report("too many prom variables");
3780 exit(1);
3781 }
3782 prom_envs[nb_prom_envs] = optarg;
3783 nb_prom_envs++;
3784 break;
3785 case QEMU_OPTION_old_param:
3786 old_param = 1;
3787 break;
3788 case QEMU_OPTION_rtc:
3789 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3790 false);
3791 if (!opts) {
3792 exit(1);
3793 }
3794 break;
3795 case QEMU_OPTION_tb_size:
3796 #ifndef CONFIG_TCG
3797 error_report("TCG is disabled");
3798 exit(1);
3799 #endif
3800 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3801 error_report("Invalid argument to -tb-size");
3802 exit(1);
3803 }
3804 break;
3805 case QEMU_OPTION_icount:
3806 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3807 optarg, true);
3808 if (!icount_opts) {
3809 exit(1);
3810 }
3811 break;
3812 case QEMU_OPTION_incoming:
3813 if (!incoming) {
3814 runstate_set(RUN_STATE_INMIGRATE);
3815 }
3816 incoming = optarg;
3817 break;
3818 case QEMU_OPTION_only_migratable:
3819 only_migratable = 1;
3820 break;
3821 case QEMU_OPTION_nodefaults:
3822 has_defaults = 0;
3823 break;
3824 case QEMU_OPTION_xen_domid:
3825 if (!(xen_available())) {
3826 error_report("Option not supported for this target");
3827 exit(1);
3828 }
3829 xen_domid = atoi(optarg);
3830 break;
3831 case QEMU_OPTION_xen_attach:
3832 if (!(xen_available())) {
3833 error_report("Option not supported for this target");
3834 exit(1);
3835 }
3836 xen_mode = XEN_ATTACH;
3837 break;
3838 case QEMU_OPTION_xen_domid_restrict:
3839 if (!(xen_available())) {
3840 error_report("Option not supported for this target");
3841 exit(1);
3842 }
3843 xen_domid_restrict = true;
3844 break;
3845 case QEMU_OPTION_trace:
3846 g_free(trace_file);
3847 trace_file = trace_opt_parse(optarg);
3848 break;
3849 case QEMU_OPTION_readconfig:
3850 {
3851 int ret = qemu_read_config_file(optarg);
3852 if (ret < 0) {
3853 error_report("read config %s: %s", optarg,
3854 strerror(-ret));
3855 exit(1);
3856 }
3857 break;
3858 }
3859 case QEMU_OPTION_spice:
3860 olist = qemu_find_opts("spice");
3861 if (!olist) {
3862 error_report("spice support is disabled");
3863 exit(1);
3864 }
3865 opts = qemu_opts_parse_noisily(olist, optarg, false);
3866 if (!opts) {
3867 exit(1);
3868 }
3869 display_remote++;
3870 break;
3871 case QEMU_OPTION_writeconfig:
3872 {
3873 FILE *fp;
3874 if (strcmp(optarg, "-") == 0) {
3875 fp = stdout;
3876 } else {
3877 fp = fopen(optarg, "w");
3878 if (fp == NULL) {
3879 error_report("open %s: %s", optarg,
3880 strerror(errno));
3881 exit(1);
3882 }
3883 }
3884 qemu_config_write(fp);
3885 if (fp != stdout) {
3886 fclose(fp);
3887 }
3888 break;
3889 }
3890 case QEMU_OPTION_qtest:
3891 qtest_chrdev = optarg;
3892 break;
3893 case QEMU_OPTION_qtest_log:
3894 qtest_log = optarg;
3895 break;
3896 case QEMU_OPTION_sandbox:
3897 #ifdef CONFIG_SECCOMP
3898 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3899 optarg, true);
3900 if (!opts) {
3901 exit(1);
3902 }
3903 #else
3904 error_report("-sandbox support is not enabled "
3905 "in this QEMU binary");
3906 exit(1);
3907 #endif
3908 break;
3909 case QEMU_OPTION_add_fd:
3910 #ifndef _WIN32
3911 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3912 optarg, false);
3913 if (!opts) {
3914 exit(1);
3915 }
3916 #else
3917 error_report("File descriptor passing is disabled on this "
3918 "platform");
3919 exit(1);
3920 #endif
3921 break;
3922 case QEMU_OPTION_object:
3923 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3924 optarg, true);
3925 if (!opts) {
3926 exit(1);
3927 }
3928 break;
3929 case QEMU_OPTION_realtime:
3930 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3931 optarg, false);
3932 if (!opts) {
3933 exit(1);
3934 }
3935 /* Don't override the -overcommit option if set */
3936 enable_mlock = enable_mlock ||
3937 qemu_opt_get_bool(opts, "mlock", true);
3938 break;
3939 case QEMU_OPTION_overcommit:
3940 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3941 optarg, false);
3942 if (!opts) {
3943 exit(1);
3944 }
3945 /* Don't override the -realtime option if set */
3946 enable_mlock = enable_mlock ||
3947 qemu_opt_get_bool(opts, "mem-lock", false);
3948 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3949 break;
3950 case QEMU_OPTION_msg:
3951 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3952 false);
3953 if (!opts) {
3954 exit(1);
3955 }
3956 configure_msg(opts);
3957 break;
3958 case QEMU_OPTION_dump_vmstate:
3959 if (vmstate_dump_file) {
3960 error_report("only one '-dump-vmstate' "
3961 "option may be given");
3962 exit(1);
3963 }
3964 vmstate_dump_file = fopen(optarg, "w");
3965 if (vmstate_dump_file == NULL) {
3966 error_report("open %s: %s", optarg, strerror(errno));
3967 exit(1);
3968 }
3969 break;
3970 case QEMU_OPTION_enable_sync_profile:
3971 qsp_enable();
3972 break;
3973 case QEMU_OPTION_nouserconfig:
3974 /* Nothing to be parsed here. Especially, do not error out below. */
3975 break;
3976 default:
3977 if (os_parse_cmd_args(popt->index, optarg)) {
3978 error_report("Option not supported in this build");
3979 exit(1);
3980 }
3981 }
3982 }
3983 }
3984 /*
3985 * Clear error location left behind by the loop.
3986 * Best done right after the loop. Do not insert code here!
3987 */
3988 loc_set_none();
3989
3990 user_register_global_props();
3991
3992 replay_configure(icount_opts);
3993
3994 if (incoming && !preconfig_exit_requested) {
3995 error_report("'preconfig' and 'incoming' options are "
3996 "mutually exclusive");
3997 exit(EXIT_FAILURE);
3998 }
3999
4000 configure_rtc(qemu_find_opts_singleton("rtc"));
4001
4002 machine_class = select_machine();
4003 object_set_machine_compat_props(machine_class->compat_props);
4004
4005 set_memory_options(&ram_slots, &maxram_size, machine_class);
4006
4007 os_daemonize();
4008 rcu_disable_atfork();
4009
4010 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
4011 error_reportf_err(err, "cannot create PID file: ");
4012 exit(1);
4013 }
4014
4015 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
4016 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4017
4018 if (qemu_init_main_loop(&main_loop_err)) {
4019 error_report_err(main_loop_err);
4020 exit(1);
4021 }
4022
4023 #ifdef CONFIG_SECCOMP
4024 olist = qemu_find_opts_err("sandbox", NULL);
4025 if (olist) {
4026 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4027 }
4028 #endif
4029
4030 qemu_opts_foreach(qemu_find_opts("name"),
4031 parse_name, NULL, &error_fatal);
4032
4033 #ifndef _WIN32
4034 qemu_opts_foreach(qemu_find_opts("add-fd"),
4035 parse_add_fd, NULL, &error_fatal);
4036
4037 qemu_opts_foreach(qemu_find_opts("add-fd"),
4038 cleanup_add_fd, NULL, &error_fatal);
4039 #endif
4040
4041 current_machine = MACHINE(object_new(object_class_get_name(
4042 OBJECT_CLASS(machine_class))));
4043 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4044 exit(0);
4045 }
4046 object_property_add_child(object_get_root(), "machine",
4047 OBJECT(current_machine), &error_abort);
4048 object_property_add_child(container_get(OBJECT(current_machine),
4049 "/unattached"),
4050 "sysbus", OBJECT(sysbus_get_default()),
4051 NULL);
4052
4053 if (machine_class->minimum_page_bits) {
4054 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4055 /* This would be a board error: specifying a minimum smaller than
4056 * a target's compile-time fixed setting.
4057 */
4058 g_assert_not_reached();
4059 }
4060 }
4061
4062 cpu_exec_init_all();
4063
4064 if (machine_class->hw_version) {
4065 qemu_set_hw_version(machine_class->hw_version);
4066 }
4067
4068 if (cpu_option && is_help_option(cpu_option)) {
4069 list_cpus(cpu_option);
4070 exit(0);
4071 }
4072
4073 if (!trace_init_backends()) {
4074 exit(1);
4075 }
4076 trace_init_file(trace_file);
4077
4078 /* Open the logfile at this point and set the log mask if necessary.
4079 */
4080 if (log_file) {
4081 qemu_set_log_filename(log_file, &error_fatal);
4082 }
4083
4084 if (log_mask) {
4085 int mask;
4086 mask = qemu_str_to_log_mask(log_mask);
4087 if (!mask) {
4088 qemu_print_log_usage(stdout);
4089 exit(1);
4090 }
4091 qemu_set_log(mask);
4092 } else {
4093 qemu_set_log(0);
4094 }
4095
4096 /* add configured firmware directories */
4097 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4098 for (i = 0; dirs[i] != NULL; i++) {
4099 qemu_add_data_dir(dirs[i]);
4100 }
4101 g_strfreev(dirs);
4102
4103 /* try to find datadir relative to the executable path */
4104 dir = os_find_datadir();
4105 qemu_add_data_dir(dir);
4106 g_free(dir);
4107
4108 /* add the datadir specified when building */
4109 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4110
4111 /* -L help lists the data directories and exits. */
4112 if (list_data_dirs) {
4113 for (i = 0; i < data_dir_idx; i++) {
4114 printf("%s\n", data_dir[i]);
4115 }
4116 exit(0);
4117 }
4118
4119 /* machine_class: default to UP */
4120 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4121 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4122 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4123
4124 /* default to machine_class->default_cpus */
4125 smp_cpus = machine_class->default_cpus;
4126 max_cpus = machine_class->default_cpus;
4127
4128 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4129
4130 /* sanity-check smp_cpus and max_cpus against machine_class */
4131 if (smp_cpus < machine_class->min_cpus) {
4132 error_report("Invalid SMP CPUs %d. The min CPUs "
4133 "supported by machine '%s' is %d", smp_cpus,
4134 machine_class->name, machine_class->min_cpus);
4135 exit(1);
4136 }
4137 if (max_cpus > machine_class->max_cpus) {
4138 error_report("Invalid SMP CPUs %d. The max CPUs "
4139 "supported by machine '%s' is %d", max_cpus,
4140 machine_class->name, machine_class->max_cpus);
4141 exit(1);
4142 }
4143
4144 /*
4145 * Get the default machine options from the machine if it is not already
4146 * specified either by the configuration file or by the command line.
4147 */
4148 if (machine_class->default_machine_opts) {
4149 qemu_opts_set_defaults(qemu_find_opts("machine"),
4150 machine_class->default_machine_opts, 0);
4151 }
4152
4153 qemu_opts_foreach(qemu_find_opts("device"),
4154 default_driver_check, NULL, NULL);
4155 qemu_opts_foreach(qemu_find_opts("global"),
4156 default_driver_check, NULL, NULL);
4157
4158 if (!vga_model && !default_vga) {
4159 vga_interface_type = VGA_DEVICE;
4160 }
4161 if (!has_defaults || machine_class->no_serial) {
4162 default_serial = 0;
4163 }
4164 if (!has_defaults || machine_class->no_parallel) {
4165 default_parallel = 0;
4166 }
4167 if (!has_defaults || machine_class->no_floppy) {
4168 default_floppy = 0;
4169 }
4170 if (!has_defaults || machine_class->no_cdrom) {
4171 default_cdrom = 0;
4172 }
4173 if (!has_defaults || machine_class->no_sdcard) {
4174 default_sdcard = 0;
4175 }
4176 if (!has_defaults) {
4177 default_monitor = 0;
4178 default_net = 0;
4179 default_vga = 0;
4180 }
4181
4182 if (is_daemonized()) {
4183 if (!preconfig_exit_requested) {
4184 error_report("'preconfig' and 'daemonize' options are "
4185 "mutually exclusive");
4186 exit(EXIT_FAILURE);
4187 }
4188
4189 /* According to documentation and historically, -nographic redirects
4190 * serial port, parallel port and monitor to stdio, which does not work
4191 * with -daemonize. We can redirect these to null instead, but since
4192 * -nographic is legacy, let's just error out.
4193 * We disallow -nographic only if all other ports are not redirected
4194 * explicitly, to not break existing legacy setups which uses
4195 * -nographic _and_ redirects all ports explicitly - this is valid
4196 * usage, -nographic is just a no-op in this case.
4197 */
4198 if (nographic
4199 && (default_parallel || default_serial || default_monitor)) {
4200 error_report("-nographic cannot be used with -daemonize");
4201 exit(1);
4202 }
4203 #ifdef CONFIG_CURSES
4204 if (dpy.type == DISPLAY_TYPE_CURSES) {
4205 error_report("curses display cannot be used with -daemonize");
4206 exit(1);
4207 }
4208 #endif
4209 }
4210
4211 if (nographic) {
4212 if (default_parallel)
4213 add_device_config(DEV_PARALLEL, "null");
4214 if (default_serial && default_monitor) {
4215 add_device_config(DEV_SERIAL, "mon:stdio");
4216 } else {
4217 if (default_serial)
4218 add_device_config(DEV_SERIAL, "stdio");
4219 if (default_monitor)
4220 monitor_parse("stdio", "readline", false);
4221 }
4222 } else {
4223 if (default_serial)
4224 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4225 if (default_parallel)
4226 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4227 if (default_monitor)
4228 monitor_parse("vc:80Cx24C", "readline", false);
4229 }
4230
4231 #if defined(CONFIG_VNC)
4232 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4233 display_remote++;
4234 }
4235 #endif
4236 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4237 if (!qemu_display_find_default(&dpy)) {
4238 dpy.type = DISPLAY_TYPE_NONE;
4239 #if defined(CONFIG_VNC)
4240 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4241 #endif
4242 }
4243 }
4244 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4245 dpy.type = DISPLAY_TYPE_NONE;
4246 }
4247
4248 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4249 error_report("-alt-grab and -ctrl-grab are only valid "
4250 "for SDL, ignoring option");
4251 }
4252 if (dpy.has_window_close &&
4253 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4254 error_report("-no-quit is only valid for GTK and SDL, "
4255 "ignoring option");
4256 }
4257
4258 qemu_display_early_init(&dpy);
4259 qemu_console_early_init();
4260
4261 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4262 #if defined(CONFIG_OPENGL)
4263 error_report("OpenGL is not supported by the display");
4264 #else
4265 error_report("OpenGL support is disabled");
4266 #endif
4267 exit(1);
4268 }
4269
4270 page_size_init();
4271 socket_init();
4272
4273 qemu_opts_foreach(qemu_find_opts("object"),
4274 user_creatable_add_opts_foreach,
4275 object_create_initial, &error_fatal);
4276
4277 qemu_opts_foreach(qemu_find_opts("chardev"),
4278 chardev_init_func, NULL, &error_fatal);
4279
4280 #ifdef CONFIG_VIRTFS
4281 qemu_opts_foreach(qemu_find_opts("fsdev"),
4282 fsdev_init_func, NULL, &error_fatal);
4283 #endif
4284
4285 if (qemu_opts_foreach(qemu_find_opts("device"),
4286 device_help_func, NULL, NULL)) {
4287 exit(0);
4288 }
4289
4290 /*
4291 * Note: we need to create block backends before
4292 * machine_set_property(), so machine properties can refer to
4293 * them.
4294 */
4295 configure_blockdev(&bdo_queue, machine_class, snapshot);
4296
4297 machine_opts = qemu_get_machine_opts();
4298 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4299 &error_fatal);
4300 current_machine->ram_size = ram_size;
4301 current_machine->maxram_size = maxram_size;
4302 current_machine->ram_slots = ram_slots;
4303
4304 /*
4305 * Note: uses machine properties such as kernel-irqchip, must run
4306 * after machine_set_property().
4307 */
4308 configure_accelerator(current_machine, argv[0]);
4309
4310 /*
4311 * Beware, QOM objects created before this point miss global and
4312 * compat properties.
4313 *
4314 * Global properties get set up by qdev_prop_register_global(),
4315 * called from user_register_global_props(), and certain option
4316 * desugaring. Also in CPU feature desugaring (buried in
4317 * parse_cpu_option()), which happens below this point, but may
4318 * only target the CPU type, which can only be created after
4319 * parse_cpu_option() returned the type.
4320 *
4321 * Machine compat properties: object_set_machine_compat_props().
4322 * Accelerator compat props: object_set_accelerator_compat_props(),
4323 * called from configure_accelerator().
4324 */
4325
4326 if (!qtest_enabled() && machine_class->deprecation_reason) {
4327 error_report("Machine type '%s' is deprecated: %s",
4328 machine_class->name, machine_class->deprecation_reason);
4329 }
4330
4331 /*
4332 * Note: creates a QOM object, must run only after global and
4333 * compat properties have been set up.
4334 */
4335 migration_object_init();
4336
4337 if (qtest_chrdev) {
4338 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4339 }
4340
4341 machine_opts = qemu_get_machine_opts();
4342 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4343 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4344 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4345 bios_name = qemu_opt_get(machine_opts, "firmware");
4346
4347 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4348 if (opts) {
4349 boot_order = qemu_opt_get(opts, "order");
4350 if (boot_order) {
4351 validate_bootdevices(boot_order, &error_fatal);
4352 }
4353
4354 boot_once = qemu_opt_get(opts, "once");
4355 if (boot_once) {
4356 validate_bootdevices(boot_once, &error_fatal);
4357 }
4358
4359 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4360 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4361 }
4362
4363 if (!boot_order) {
4364 boot_order = machine_class->default_boot_order;
4365 }
4366
4367 if (!kernel_cmdline) {
4368 kernel_cmdline = "";
4369 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4370 }
4371
4372 linux_boot = (kernel_filename != NULL);
4373
4374 if (!linux_boot && *kernel_cmdline != '\0') {
4375 error_report("-append only allowed with -kernel option");
4376 exit(1);
4377 }
4378
4379 if (!linux_boot && initrd_filename != NULL) {
4380 error_report("-initrd only allowed with -kernel option");
4381 exit(1);
4382 }
4383
4384 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4385 /* fall back to the -kernel/-append */
4386 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4387 }
4388
4389 os_set_line_buffering();
4390
4391 /* spice needs the timers to be initialized by this point */
4392 qemu_spice_init();
4393
4394 cpu_ticks_init();
4395 if (icount_opts) {
4396 if (!tcg_enabled()) {
4397 error_report("-icount is not allowed with hardware virtualization");
4398 exit(1);
4399 }
4400 configure_icount(icount_opts, &error_abort);
4401 qemu_opts_del(icount_opts);
4402 }
4403
4404 if (tcg_enabled()) {
4405 qemu_tcg_configure(accel_opts, &error_fatal);
4406 }
4407
4408 if (default_net) {
4409 QemuOptsList *net = qemu_find_opts("net");
4410 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4411 #ifdef CONFIG_SLIRP
4412 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4413 #endif
4414 }
4415
4416 if (net_init_clients(&err) < 0) {
4417 error_report_err(err);
4418 exit(1);
4419 }
4420
4421 qemu_opts_foreach(qemu_find_opts("object"),
4422 user_creatable_add_opts_foreach,
4423 object_create_delayed, &error_fatal);
4424
4425 tpm_init();
4426
4427 /* init the bluetooth world */
4428 if (foreach_device_config(DEV_BT, bt_parse))
4429 exit(1);
4430
4431 if (!xen_enabled()) {
4432 /* On 32-bit hosts, QEMU is limited by virtual address space */
4433 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4434 error_report("at most 2047 MB RAM can be simulated");
4435 exit(1);
4436 }
4437 }
4438
4439 blk_mig_init();
4440 ram_mig_init();
4441 dirty_bitmap_mig_init();
4442
4443 qemu_opts_foreach(qemu_find_opts("mon"),
4444 mon_init_func, NULL, &error_fatal);
4445
4446 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4447 exit(1);
4448 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4449 exit(1);
4450 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4451 exit(1);
4452
4453 /* If no default VGA is requested, the default is "none". */
4454 if (default_vga) {
4455 vga_model = get_default_vga_model(machine_class);
4456 }
4457 if (vga_model) {
4458 select_vgahw(machine_class, vga_model);
4459 }
4460
4461 if (watchdog) {
4462 i = select_watchdog(watchdog);
4463 if (i > 0)
4464 exit (i == 1 ? 1 : 0);
4465 }
4466
4467 /* This checkpoint is required by replay to separate prior clock
4468 reading from the other reads, because timer polling functions query
4469 clock values from the log. */
4470 replay_checkpoint(CHECKPOINT_INIT);
4471 qdev_machine_init();
4472
4473 current_machine->boot_order = boot_order;
4474
4475 /* parse features once if machine provides default cpu_type */
4476 current_machine->cpu_type = machine_class->default_cpu_type;
4477 if (cpu_option) {
4478 current_machine->cpu_type = parse_cpu_option(cpu_option);
4479 }
4480 parse_numa_opts(current_machine);
4481
4482 /* do monitor/qmp handling at preconfig state if requested */
4483 main_loop();
4484
4485 audio_init_audiodevs();
4486
4487 /* from here on runstate is RUN_STATE_PRELAUNCH */
4488 machine_run_board_init(current_machine);
4489
4490 realtime_init();
4491
4492 soundhw_init();
4493
4494 if (hax_enabled()) {
4495 hax_sync_vcpus();
4496 }
4497
4498 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4499 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4500
4501 /* init USB devices */
4502 if (machine_usb(current_machine)) {
4503 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4504 exit(1);
4505 }
4506
4507 /* Check if IGD GFX passthrough. */
4508 igd_gfx_passthru();
4509
4510 /* init generic devices */
4511 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4512 qemu_opts_foreach(qemu_find_opts("device"),
4513 device_init_func, NULL, &error_fatal);
4514
4515 cpu_synchronize_all_post_init();
4516
4517 rom_reset_order_override();
4518
4519 /* Did we create any drives that we failed to create a device for? */
4520 drive_check_orphaned();
4521
4522 /* Don't warn about the default network setup that you get if
4523 * no command line -net or -netdev options are specified. There
4524 * are two cases that we would otherwise complain about:
4525 * (1) board doesn't support a NIC but the implicit "-net nic"
4526 * requested one
4527 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4528 * sets up a nic that isn't connected to anything.
4529 */
4530 if (!default_net && (!qtest_enabled() || has_defaults)) {
4531 net_check_clients();
4532 }
4533
4534 if (boot_once) {
4535 qemu_boot_set(boot_once, &error_fatal);
4536 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4537 }
4538
4539 /* init local displays */
4540 ds = init_displaystate();
4541 qemu_display_init(ds, &dpy);
4542
4543 /* must be after terminal init, SDL library changes signal handlers */
4544 os_setup_signal_handling();
4545
4546 /* init remote displays */
4547 #ifdef CONFIG_VNC
4548 qemu_opts_foreach(qemu_find_opts("vnc"),
4549 vnc_init_func, NULL, &error_fatal);
4550 #endif
4551
4552 if (using_spice) {
4553 qemu_spice_display_init();
4554 }
4555
4556 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4557 exit(1);
4558 }
4559
4560 qdev_machine_creation_done();
4561
4562 /* TODO: once all bus devices are qdevified, this should be done
4563 * when bus is created by qdev.c */
4564 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4565 qemu_run_machine_init_done_notifiers();
4566
4567 if (rom_check_and_register_reset() != 0) {
4568 error_report("rom check and register reset failed");
4569 exit(1);
4570 }
4571
4572 replay_start();
4573
4574 /* This checkpoint is required by replay to separate prior clock
4575 reading from the other reads, because timer polling functions query
4576 clock values from the log. */
4577 replay_checkpoint(CHECKPOINT_RESET);
4578 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4579 register_global_state();
4580 if (loadvm) {
4581 Error *local_err = NULL;
4582 if (load_snapshot(loadvm, &local_err) < 0) {
4583 error_report_err(local_err);
4584 autostart = 0;
4585 exit(1);
4586 }
4587 }
4588 if (replay_mode != REPLAY_MODE_NONE) {
4589 replay_vmstate_init();
4590 }
4591
4592 qdev_prop_check_globals();
4593 if (vmstate_dump_file) {
4594 /* dump and exit */
4595 dump_vmstate_json_to_file(vmstate_dump_file);
4596 return 0;
4597 }
4598
4599 if (incoming) {
4600 Error *local_err = NULL;
4601 qemu_start_incoming_migration(incoming, &local_err);
4602 if (local_err) {
4603 error_reportf_err(local_err, "-incoming %s: ", incoming);
4604 exit(1);
4605 }
4606 } else if (autostart) {
4607 vm_start();
4608 }
4609
4610 accel_setup_post(current_machine);
4611 os_setup_post();
4612
4613 main_loop();
4614
4615 gdbserver_cleanup();
4616
4617 /*
4618 * cleaning up the migration object cancels any existing migration
4619 * try to do this early so that it also stops using devices.
4620 */
4621 migration_shutdown();
4622
4623 /* No more vcpu or device emulation activity beyond this point */
4624 vm_shutdown();
4625
4626 job_cancel_sync_all();
4627 bdrv_close_all();
4628
4629 res_free();
4630
4631 /* vhost-user must be cleaned up before chardevs. */
4632 tpm_cleanup();
4633 net_cleanup();
4634 audio_cleanup();
4635 monitor_cleanup();
4636 qemu_chr_cleanup();
4637 user_creatable_cleanup();
4638 /* TODO: unref root container, check all devices are ok */
4639
4640 return 0;
4641 }
QEmu