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qapi: Eliminate accidental global frontend state
[qemu/kevin.git] / vl.c
blob4489cfb2bb6f70587bffc5a638b6f1919772191e
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
38
39 #ifdef CONFIG_SDL
40 #if defined(__APPLE__) || defined(main)
41 #include <SDL.h>
42 int qemu_main(int argc, char **argv, char **envp);
43 int main(int argc, char **argv)
44 {
45 return qemu_main(argc, argv, NULL);
46 }
47 #undef main
48 #define main qemu_main
49 #endif
50 #endif /* CONFIG_SDL */
51
52 #ifdef CONFIG_COCOA
53 #undef main
54 #define main qemu_main
55 #endif /* CONFIG_COCOA */
56
57
58 #include "qemu/error-report.h"
59 #include "qemu/sockets.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "hw/bt.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/firmware/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
70 #include "hw/loader.h"
71 #include "monitor/qdev.h"
72 #include "sysemu/bt.h"
73 #include "net/net.h"
74 #include "net/slirp.h"
75 #include "monitor/monitor.h"
76 #include "ui/console.h"
77 #include "ui/input.h"
78 #include "sysemu/sysemu.h"
79 #include "sysemu/numa.h"
80 #include "exec/gdbstub.h"
81 #include "qemu/timer.h"
82 #include "chardev/char.h"
83 #include "qemu/bitmap.h"
84 #include "qemu/log.h"
85 #include "sysemu/blockdev.h"
86 #include "hw/block/block.h"
87 #include "migration/misc.h"
88 #include "migration/snapshot.h"
89 #include "migration/global_state.h"
90 #include "sysemu/tpm.h"
91 #include "sysemu/dma.h"
92 #include "hw/audio/soundhw.h"
93 #include "audio/audio.h"
94 #include "sysemu/cpus.h"
95 #include "migration/colo.h"
96 #include "migration/postcopy-ram.h"
97 #include "sysemu/kvm.h"
98 #include "sysemu/hax.h"
99 #include "qapi/qobject-input-visitor.h"
100 #include "qemu/option.h"
101 #include "qemu/config-file.h"
102 #include "qemu-options.h"
103 #include "qemu/main-loop.h"
104 #ifdef CONFIG_VIRTFS
105 #include "fsdev/qemu-fsdev.h"
106 #endif
107 #include "sysemu/qtest.h"
108
109 #include "disas/disas.h"
110
111 #include "trace-root.h"
112 #include "trace/control.h"
113 #include "qemu/queue.h"
114 #include "sysemu/arch_init.h"
115
116 #include "ui/qemu-spice.h"
117 #include "qapi/string-input-visitor.h"
118 #include "qapi/opts-visitor.h"
119 #include "qapi/clone-visitor.h"
120 #include "qom/object_interfaces.h"
121 #include "hw/semihosting/semihost.h"
122 #include "crypto/init.h"
123 #include "sysemu/replay.h"
124 #include "qapi/qapi-events-run-state.h"
125 #include "qapi/qapi-visit-block-core.h"
126 #include "qapi/qapi-visit-ui.h"
127 #include "qapi/qapi-commands-block-core.h"
128 #include "qapi/qapi-commands-run-state.h"
129 #include "qapi/qapi-commands-ui.h"
130 #include "qapi/qmp/qerror.h"
131 #include "sysemu/iothread.h"
132 #include "qemu/guest-random.h"
133
134 #define MAX_VIRTIO_CONSOLES 1
135
136 static const char *data_dir[16];
137 static int data_dir_idx;
138 const char *bios_name = NULL;
139 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
140 int display_opengl;
141 const char* keyboard_layout = NULL;
142 ram_addr_t ram_size;
143 const char *mem_path = NULL;
144 int mem_prealloc = 0; /* force preallocation of physical target memory */
145 bool enable_mlock = false;
146 bool enable_cpu_pm = false;
147 int nb_nics;
148 NICInfo nd_table[MAX_NICS];
149 int autostart;
150 static enum {
151 RTC_BASE_UTC,
152 RTC_BASE_LOCALTIME,
153 RTC_BASE_DATETIME,
154 } rtc_base_type = RTC_BASE_UTC;
155 static time_t rtc_ref_start_datetime;
156 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
157 static int rtc_host_datetime_offset = -1; /* valid & used only with
158 RTC_BASE_DATETIME */
159 QEMUClockType rtc_clock;
160 int vga_interface_type = VGA_NONE;
161 static DisplayOptions dpy;
162 static int num_serial_hds;
163 static Chardev **serial_hds;
164 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
165 int win2k_install_hack = 0;
166 int singlestep = 0;
167 int acpi_enabled = 1;
168 int no_hpet = 0;
169 int fd_bootchk = 1;
170 static int no_reboot;
171 int no_shutdown = 0;
172 int cursor_hide = 1;
173 int graphic_rotate = 0;
174 const char *watchdog;
175 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
176 int nb_option_roms;
177 int old_param = 0;
178 const char *qemu_name;
179 int alt_grab = 0;
180 int ctrl_grab = 0;
181 unsigned int nb_prom_envs = 0;
182 const char *prom_envs[MAX_PROM_ENVS];
183 int boot_menu;
184 bool boot_strict;
185 uint8_t *boot_splash_filedata;
186 int only_migratable; /* turn it off unless user states otherwise */
187 bool wakeup_suspend_enabled;
188
189 int icount_align_option;
190
191 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
192 * little-endian "wire format" described in the SMBIOS 2.6 specification.
193 */
194 QemuUUID qemu_uuid;
195 bool qemu_uuid_set;
196
197 static NotifierList exit_notifiers =
198 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
199
200 static NotifierList machine_init_done_notifiers =
201 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
202
203 bool xen_allowed;
204 uint32_t xen_domid;
205 enum xen_mode xen_mode = XEN_EMULATE;
206 bool xen_domid_restrict;
207
208 static int has_defaults = 1;
209 static int default_serial = 1;
210 static int default_parallel = 1;
211 static int default_monitor = 1;
212 static int default_floppy = 1;
213 static int default_cdrom = 1;
214 static int default_sdcard = 1;
215 static int default_vga = 1;
216 static int default_net = 1;
217
218 static struct {
219 const char *driver;
220 int *flag;
221 } default_list[] = {
222 { .driver = "isa-serial", .flag = &default_serial },
223 { .driver = "isa-parallel", .flag = &default_parallel },
224 { .driver = "isa-fdc", .flag = &default_floppy },
225 { .driver = "floppy", .flag = &default_floppy },
226 { .driver = "ide-cd", .flag = &default_cdrom },
227 { .driver = "ide-hd", .flag = &default_cdrom },
228 { .driver = "ide-drive", .flag = &default_cdrom },
229 { .driver = "scsi-cd", .flag = &default_cdrom },
230 { .driver = "scsi-hd", .flag = &default_cdrom },
231 { .driver = "VGA", .flag = &default_vga },
232 { .driver = "isa-vga", .flag = &default_vga },
233 { .driver = "cirrus-vga", .flag = &default_vga },
234 { .driver = "isa-cirrus-vga", .flag = &default_vga },
235 { .driver = "vmware-svga", .flag = &default_vga },
236 { .driver = "qxl-vga", .flag = &default_vga },
237 { .driver = "virtio-vga", .flag = &default_vga },
238 { .driver = "ati-vga", .flag = &default_vga },
239 { .driver = "vhost-user-vga", .flag = &default_vga },
240 };
241
242 static QemuOptsList qemu_rtc_opts = {
243 .name = "rtc",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
245 .merge_lists = true,
246 .desc = {
247 {
248 .name = "base",
249 .type = QEMU_OPT_STRING,
250 },{
251 .name = "clock",
252 .type = QEMU_OPT_STRING,
253 },{
254 .name = "driftfix",
255 .type = QEMU_OPT_STRING,
256 },
257 { /* end of list */ }
258 },
259 };
260
261 static QemuOptsList qemu_option_rom_opts = {
262 .name = "option-rom",
263 .implied_opt_name = "romfile",
264 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
265 .desc = {
266 {
267 .name = "bootindex",
268 .type = QEMU_OPT_NUMBER,
269 }, {
270 .name = "romfile",
271 .type = QEMU_OPT_STRING,
272 },
273 { /* end of list */ }
274 },
275 };
276
277 static QemuOptsList qemu_machine_opts = {
278 .name = "machine",
279 .implied_opt_name = "type",
280 .merge_lists = true,
281 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
282 .desc = {
283 /*
284 * no elements => accept any
285 * sanity checking will happen later
286 * when setting machine properties
287 */
288 { }
289 },
290 };
291
292 static QemuOptsList qemu_accel_opts = {
293 .name = "accel",
294 .implied_opt_name = "accel",
295 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
296 .merge_lists = true,
297 .desc = {
298 {
299 .name = "accel",
300 .type = QEMU_OPT_STRING,
301 .help = "Select the type of accelerator",
302 },
303 {
304 .name = "thread",
305 .type = QEMU_OPT_STRING,
306 .help = "Enable/disable multi-threaded TCG",
307 },
308 { /* end of list */ }
309 },
310 };
311
312 static QemuOptsList qemu_boot_opts = {
313 .name = "boot-opts",
314 .implied_opt_name = "order",
315 .merge_lists = true,
316 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
317 .desc = {
318 {
319 .name = "order",
320 .type = QEMU_OPT_STRING,
321 }, {
322 .name = "once",
323 .type = QEMU_OPT_STRING,
324 }, {
325 .name = "menu",
326 .type = QEMU_OPT_BOOL,
327 }, {
328 .name = "splash",
329 .type = QEMU_OPT_STRING,
330 }, {
331 .name = "splash-time",
332 .type = QEMU_OPT_NUMBER,
333 }, {
334 .name = "reboot-timeout",
335 .type = QEMU_OPT_NUMBER,
336 }, {
337 .name = "strict",
338 .type = QEMU_OPT_BOOL,
339 },
340 { /*End of list */ }
341 },
342 };
343
344 static QemuOptsList qemu_add_fd_opts = {
345 .name = "add-fd",
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
347 .desc = {
348 {
349 .name = "fd",
350 .type = QEMU_OPT_NUMBER,
351 .help = "file descriptor of which a duplicate is added to fd set",
352 },{
353 .name = "set",
354 .type = QEMU_OPT_NUMBER,
355 .help = "ID of the fd set to add fd to",
356 },{
357 .name = "opaque",
358 .type = QEMU_OPT_STRING,
359 .help = "free-form string used to describe fd",
360 },
361 { /* end of list */ }
362 },
363 };
364
365 static QemuOptsList qemu_object_opts = {
366 .name = "object",
367 .implied_opt_name = "qom-type",
368 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
369 .desc = {
370 { }
371 },
372 };
373
374 static QemuOptsList qemu_tpmdev_opts = {
375 .name = "tpmdev",
376 .implied_opt_name = "type",
377 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
378 .desc = {
379 /* options are defined in the TPM backends */
380 { /* end of list */ }
381 },
382 };
383
384 static QemuOptsList qemu_realtime_opts = {
385 .name = "realtime",
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
387 .desc = {
388 {
389 .name = "mlock",
390 .type = QEMU_OPT_BOOL,
391 },
392 { /* end of list */ }
393 },
394 };
395
396 static QemuOptsList qemu_overcommit_opts = {
397 .name = "overcommit",
398 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
399 .desc = {
400 {
401 .name = "mem-lock",
402 .type = QEMU_OPT_BOOL,
403 },
404 {
405 .name = "cpu-pm",
406 .type = QEMU_OPT_BOOL,
407 },
408 { /* end of list */ }
409 },
410 };
411
412 static QemuOptsList qemu_msg_opts = {
413 .name = "msg",
414 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
415 .desc = {
416 {
417 .name = "timestamp",
418 .type = QEMU_OPT_BOOL,
419 },
420 { /* end of list */ }
421 },
422 };
423
424 static QemuOptsList qemu_name_opts = {
425 .name = "name",
426 .implied_opt_name = "guest",
427 .merge_lists = true,
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
429 .desc = {
430 {
431 .name = "guest",
432 .type = QEMU_OPT_STRING,
433 .help = "Sets the name of the guest.\n"
434 "This name will be displayed in the SDL window caption.\n"
435 "The name will also be used for the VNC server",
436 }, {
437 .name = "process",
438 .type = QEMU_OPT_STRING,
439 .help = "Sets the name of the QEMU process, as shown in top etc",
440 }, {
441 .name = "debug-threads",
442 .type = QEMU_OPT_BOOL,
443 .help = "When enabled, name the individual threads; defaults off.\n"
444 "NOTE: The thread names are for debugging and not a\n"
445 "stable API.",
446 },
447 { /* End of list */ }
448 },
449 };
450
451 static QemuOptsList qemu_mem_opts = {
452 .name = "memory",
453 .implied_opt_name = "size",
454 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
455 .merge_lists = true,
456 .desc = {
457 {
458 .name = "size",
459 .type = QEMU_OPT_SIZE,
460 },
461 {
462 .name = "slots",
463 .type = QEMU_OPT_NUMBER,
464 },
465 {
466 .name = "maxmem",
467 .type = QEMU_OPT_SIZE,
468 },
469 { /* end of list */ }
470 },
471 };
472
473 static QemuOptsList qemu_icount_opts = {
474 .name = "icount",
475 .implied_opt_name = "shift",
476 .merge_lists = true,
477 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
478 .desc = {
479 {
480 .name = "shift",
481 .type = QEMU_OPT_STRING,
482 }, {
483 .name = "align",
484 .type = QEMU_OPT_BOOL,
485 }, {
486 .name = "sleep",
487 .type = QEMU_OPT_BOOL,
488 }, {
489 .name = "rr",
490 .type = QEMU_OPT_STRING,
491 }, {
492 .name = "rrfile",
493 .type = QEMU_OPT_STRING,
494 }, {
495 .name = "rrsnapshot",
496 .type = QEMU_OPT_STRING,
497 },
498 { /* end of list */ }
499 },
500 };
501
502 static QemuOptsList qemu_fw_cfg_opts = {
503 .name = "fw_cfg",
504 .implied_opt_name = "name",
505 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
506 .desc = {
507 {
508 .name = "name",
509 .type = QEMU_OPT_STRING,
510 .help = "Sets the fw_cfg name of the blob to be inserted",
511 }, {
512 .name = "file",
513 .type = QEMU_OPT_STRING,
514 .help = "Sets the name of the file from which "
515 "the fw_cfg blob will be loaded",
516 }, {
517 .name = "string",
518 .type = QEMU_OPT_STRING,
519 .help = "Sets content of the blob to be inserted from a string",
520 },
521 { /* end of list */ }
522 },
523 };
524
525 /**
526 * Get machine options
527 *
528 * Returns: machine options (never null).
529 */
530 QemuOpts *qemu_get_machine_opts(void)
531 {
532 return qemu_find_opts_singleton("machine");
533 }
534
535 const char *qemu_get_vm_name(void)
536 {
537 return qemu_name;
538 }
539
540 static void res_free(void)
541 {
542 g_free(boot_splash_filedata);
543 boot_splash_filedata = NULL;
544 }
545
546 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
547 {
548 const char *driver = qemu_opt_get(opts, "driver");
549 int i;
550
551 if (!driver)
552 return 0;
553 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
554 if (strcmp(default_list[i].driver, driver) != 0)
555 continue;
556 *(default_list[i].flag) = 0;
557 }
558 return 0;
559 }
560
561 /***********************************************************/
562 /* QEMU state */
563
564 static RunState current_run_state = RUN_STATE_PRECONFIG;
565
566 /* We use RUN_STATE__MAX but any invalid value will do */
567 static RunState vmstop_requested = RUN_STATE__MAX;
568 static QemuMutex vmstop_lock;
569
570 typedef struct {
571 RunState from;
572 RunState to;
573 } RunStateTransition;
574
575 static const RunStateTransition runstate_transitions_def[] = {
576 /* from -> to */
577 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
578 /* Early switch to inmigrate state to allow -incoming CLI option work
579 * as it used to. TODO: delay actual switching to inmigrate state to
580 * the point after machine is built and remove this hack.
581 */
582 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
583
584 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
585 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
586 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
587
588 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
589 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
590 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
591 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
592 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
593 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
594 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
595 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
596 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
597 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
598 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
599 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
600
601 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
602 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
604
605 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
606 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
607 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
608
609 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
610 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
612 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
613 { RUN_STATE_PAUSED, RUN_STATE_COLO},
614
615 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
616 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
617 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
618
619 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
620 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
621 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
622
623 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
624 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
625 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
626 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
627 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
628
629 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
630 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
631
632 { RUN_STATE_COLO, RUN_STATE_RUNNING },
633
634 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
635 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
636 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
637 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
638 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
640 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
641 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
642 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
643 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
644 { RUN_STATE_RUNNING, RUN_STATE_COLO},
645
646 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
647
648 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
649 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
650 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
651
652 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
653 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
654 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
655 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
656 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
657 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
658
659 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
660 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
661 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
662 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
663
664 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
665 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
666 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
667
668 { RUN_STATE__MAX, RUN_STATE__MAX },
669 };
670
671 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
672
673 bool runstate_check(RunState state)
674 {
675 return current_run_state == state;
676 }
677
678 bool runstate_store(char *str, size_t size)
679 {
680 const char *state = RunState_str(current_run_state);
681 size_t len = strlen(state) + 1;
682
683 if (len > size) {
684 return false;
685 }
686 memcpy(str, state, len);
687 return true;
688 }
689
690 static void runstate_init(void)
691 {
692 const RunStateTransition *p;
693
694 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
695 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
696 runstate_valid_transitions[p->from][p->to] = true;
697 }
698
699 qemu_mutex_init(&vmstop_lock);
700 }
701
702 /* This function will abort() on invalid state transitions */
703 void runstate_set(RunState new_state)
704 {
705 assert(new_state < RUN_STATE__MAX);
706
707 trace_runstate_set(current_run_state, RunState_str(current_run_state),
708 new_state, RunState_str(new_state));
709
710 if (current_run_state == new_state) {
711 return;
712 }
713
714 if (!runstate_valid_transitions[current_run_state][new_state]) {
715 error_report("invalid runstate transition: '%s' -> '%s'",
716 RunState_str(current_run_state),
717 RunState_str(new_state));
718 abort();
719 }
720
721 current_run_state = new_state;
722 }
723
724 int runstate_is_running(void)
725 {
726 return runstate_check(RUN_STATE_RUNNING);
727 }
728
729 bool runstate_needs_reset(void)
730 {
731 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
732 runstate_check(RUN_STATE_SHUTDOWN);
733 }
734
735 StatusInfo *qmp_query_status(Error **errp)
736 {
737 StatusInfo *info = g_malloc0(sizeof(*info));
738
739 info->running = runstate_is_running();
740 info->singlestep = singlestep;
741 info->status = current_run_state;
742
743 return info;
744 }
745
746 bool qemu_vmstop_requested(RunState *r)
747 {
748 qemu_mutex_lock(&vmstop_lock);
749 *r = vmstop_requested;
750 vmstop_requested = RUN_STATE__MAX;
751 qemu_mutex_unlock(&vmstop_lock);
752 return *r < RUN_STATE__MAX;
753 }
754
755 void qemu_system_vmstop_request_prepare(void)
756 {
757 qemu_mutex_lock(&vmstop_lock);
758 }
759
760 void qemu_system_vmstop_request(RunState state)
761 {
762 vmstop_requested = state;
763 qemu_mutex_unlock(&vmstop_lock);
764 qemu_notify_event();
765 }
766
767 /***********************************************************/
768 /* RTC reference time/date access */
769 static time_t qemu_ref_timedate(QEMUClockType clock)
770 {
771 time_t value = qemu_clock_get_ms(clock) / 1000;
772 switch (clock) {
773 case QEMU_CLOCK_REALTIME:
774 value -= rtc_realtime_clock_offset;
775 /* fall through */
776 case QEMU_CLOCK_VIRTUAL:
777 value += rtc_ref_start_datetime;
778 break;
779 case QEMU_CLOCK_HOST:
780 if (rtc_base_type == RTC_BASE_DATETIME) {
781 value -= rtc_host_datetime_offset;
782 }
783 break;
784 default:
785 assert(0);
786 }
787 return value;
788 }
789
790 void qemu_get_timedate(struct tm *tm, int offset)
791 {
792 time_t ti = qemu_ref_timedate(rtc_clock);
793
794 ti += offset;
795
796 switch (rtc_base_type) {
797 case RTC_BASE_DATETIME:
798 case RTC_BASE_UTC:
799 gmtime_r(&ti, tm);
800 break;
801 case RTC_BASE_LOCALTIME:
802 localtime_r(&ti, tm);
803 break;
804 }
805 }
806
807 int qemu_timedate_diff(struct tm *tm)
808 {
809 time_t seconds;
810
811 switch (rtc_base_type) {
812 case RTC_BASE_DATETIME:
813 case RTC_BASE_UTC:
814 seconds = mktimegm(tm);
815 break;
816 case RTC_BASE_LOCALTIME:
817 {
818 struct tm tmp = *tm;
819 tmp.tm_isdst = -1; /* use timezone to figure it out */
820 seconds = mktime(&tmp);
821 break;
822 }
823 default:
824 abort();
825 }
826
827 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
828 }
829
830 static void configure_rtc_base_datetime(const char *startdate)
831 {
832 time_t rtc_start_datetime;
833 struct tm tm;
834
835 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
836 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
837 /* OK */
838 } else if (sscanf(startdate, "%d-%d-%d",
839 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
840 tm.tm_hour = 0;
841 tm.tm_min = 0;
842 tm.tm_sec = 0;
843 } else {
844 goto date_fail;
845 }
846 tm.tm_year -= 1900;
847 tm.tm_mon--;
848 rtc_start_datetime = mktimegm(&tm);
849 if (rtc_start_datetime == -1) {
850 date_fail:
851 error_report("invalid datetime format");
852 error_printf("valid formats: "
853 "'2006-06-17T16:01:21' or '2006-06-17'\n");
854 exit(1);
855 }
856 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
857 rtc_ref_start_datetime = rtc_start_datetime;
858 }
859
860 static void configure_rtc(QemuOpts *opts)
861 {
862 const char *value;
863
864 /* Set defaults */
865 rtc_clock = QEMU_CLOCK_HOST;
866 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
867 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
868
869 value = qemu_opt_get(opts, "base");
870 if (value) {
871 if (!strcmp(value, "utc")) {
872 rtc_base_type = RTC_BASE_UTC;
873 } else if (!strcmp(value, "localtime")) {
874 Error *blocker = NULL;
875 rtc_base_type = RTC_BASE_LOCALTIME;
876 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
877 "-rtc base=localtime");
878 replay_add_blocker(blocker);
879 } else {
880 rtc_base_type = RTC_BASE_DATETIME;
881 configure_rtc_base_datetime(value);
882 }
883 }
884 value = qemu_opt_get(opts, "clock");
885 if (value) {
886 if (!strcmp(value, "host")) {
887 rtc_clock = QEMU_CLOCK_HOST;
888 } else if (!strcmp(value, "rt")) {
889 rtc_clock = QEMU_CLOCK_REALTIME;
890 } else if (!strcmp(value, "vm")) {
891 rtc_clock = QEMU_CLOCK_VIRTUAL;
892 } else {
893 error_report("invalid option value '%s'", value);
894 exit(1);
895 }
896 }
897 value = qemu_opt_get(opts, "driftfix");
898 if (value) {
899 if (!strcmp(value, "slew")) {
900 static GlobalProperty slew_lost_ticks = {
901 .driver = "mc146818rtc",
902 .property = "lost_tick_policy",
903 .value = "slew",
904 };
905
906 qdev_prop_register_global(&slew_lost_ticks);
907 } else if (!strcmp(value, "none")) {
908 /* discard is default */
909 } else {
910 error_report("invalid option value '%s'", value);
911 exit(1);
912 }
913 }
914 }
915
916 /***********************************************************/
917 /* Bluetooth support */
918 static int nb_hcis;
919 static int cur_hci;
920 static struct HCIInfo *hci_table[MAX_NICS];
921
922 struct HCIInfo *qemu_next_hci(void)
923 {
924 if (cur_hci == nb_hcis)
925 return &null_hci;
926
927 return hci_table[cur_hci++];
928 }
929
930 static int bt_hci_parse(const char *str)
931 {
932 struct HCIInfo *hci;
933 bdaddr_t bdaddr;
934
935 if (nb_hcis >= MAX_NICS) {
936 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
937 return -1;
938 }
939
940 hci = hci_init(str);
941 if (!hci)
942 return -1;
943
944 bdaddr.b[0] = 0x52;
945 bdaddr.b[1] = 0x54;
946 bdaddr.b[2] = 0x00;
947 bdaddr.b[3] = 0x12;
948 bdaddr.b[4] = 0x34;
949 bdaddr.b[5] = 0x56 + nb_hcis;
950 hci->bdaddr_set(hci, bdaddr.b);
951
952 hci_table[nb_hcis++] = hci;
953
954 return 0;
955 }
956
957 static void bt_vhci_add(int vlan_id)
958 {
959 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
960
961 if (!vlan->slave)
962 warn_report("adding a VHCI to an empty scatternet %i",
963 vlan_id);
964
965 bt_vhci_init(bt_new_hci(vlan));
966 }
967
968 static struct bt_device_s *bt_device_add(const char *opt)
969 {
970 struct bt_scatternet_s *vlan;
971 int vlan_id = 0;
972 char *endp = strstr(opt, ",vlan=");
973 int len = (endp ? endp - opt : strlen(opt)) + 1;
974 char devname[10];
975
976 pstrcpy(devname, MIN(sizeof(devname), len), opt);
977
978 if (endp) {
979 vlan_id = strtol(endp + 6, &endp, 0);
980 if (*endp) {
981 error_report("unrecognised bluetooth vlan Id");
982 return 0;
983 }
984 }
985
986 vlan = qemu_find_bt_vlan(vlan_id);
987
988 if (!vlan->slave)
989 warn_report("adding a slave device to an empty scatternet %i",
990 vlan_id);
991
992 if (!strcmp(devname, "keyboard"))
993 return bt_keyboard_init(vlan);
994
995 error_report("unsupported bluetooth device '%s'", devname);
996 return 0;
997 }
998
999 static int bt_parse(const char *opt)
1000 {
1001 const char *endp, *p;
1002 int vlan;
1003
1004 if (strstart(opt, "hci", &endp)) {
1005 if (!*endp || *endp == ',') {
1006 if (*endp)
1007 if (!strstart(endp, ",vlan=", 0))
1008 opt = endp + 1;
1009
1010 return bt_hci_parse(opt);
1011 }
1012 } else if (strstart(opt, "vhci", &endp)) {
1013 if (!*endp || *endp == ',') {
1014 if (*endp) {
1015 if (strstart(endp, ",vlan=", &p)) {
1016 vlan = strtol(p, (char **) &endp, 0);
1017 if (*endp) {
1018 error_report("bad scatternet '%s'", p);
1019 return 1;
1020 }
1021 } else {
1022 error_report("bad parameter '%s'", endp + 1);
1023 return 1;
1024 }
1025 } else
1026 vlan = 0;
1027
1028 bt_vhci_add(vlan);
1029 return 0;
1030 }
1031 } else if (strstart(opt, "device:", &endp))
1032 return !bt_device_add(endp);
1033
1034 error_report("bad bluetooth parameter '%s'", opt);
1035 return 1;
1036 }
1037
1038 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1039 {
1040 const char *proc_name;
1041
1042 if (qemu_opt_get(opts, "debug-threads")) {
1043 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1044 }
1045 qemu_name = qemu_opt_get(opts, "guest");
1046
1047 proc_name = qemu_opt_get(opts, "process");
1048 if (proc_name) {
1049 os_set_proc_name(proc_name);
1050 }
1051
1052 return 0;
1053 }
1054
1055 bool defaults_enabled(void)
1056 {
1057 return has_defaults;
1058 }
1059
1060 #ifndef _WIN32
1061 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1062 {
1063 int fd, dupfd, flags;
1064 int64_t fdset_id;
1065 const char *fd_opaque = NULL;
1066 AddfdInfo *fdinfo;
1067
1068 fd = qemu_opt_get_number(opts, "fd", -1);
1069 fdset_id = qemu_opt_get_number(opts, "set", -1);
1070 fd_opaque = qemu_opt_get(opts, "opaque");
1071
1072 if (fd < 0) {
1073 error_setg(errp, "fd option is required and must be non-negative");
1074 return -1;
1075 }
1076
1077 if (fd <= STDERR_FILENO) {
1078 error_setg(errp, "fd cannot be a standard I/O stream");
1079 return -1;
1080 }
1081
1082 /*
1083 * All fds inherited across exec() necessarily have FD_CLOEXEC
1084 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1085 */
1086 flags = fcntl(fd, F_GETFD);
1087 if (flags == -1 || (flags & FD_CLOEXEC)) {
1088 error_setg(errp, "fd is not valid or already in use");
1089 return -1;
1090 }
1091
1092 if (fdset_id < 0) {
1093 error_setg(errp, "set option is required and must be non-negative");
1094 return -1;
1095 }
1096
1097 #ifdef F_DUPFD_CLOEXEC
1098 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1099 #else
1100 dupfd = dup(fd);
1101 if (dupfd != -1) {
1102 qemu_set_cloexec(dupfd);
1103 }
1104 #endif
1105 if (dupfd == -1) {
1106 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1107 return -1;
1108 }
1109
1110 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1111 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1112 &error_abort);
1113 g_free(fdinfo);
1114
1115 return 0;
1116 }
1117
1118 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1119 {
1120 int fd;
1121
1122 fd = qemu_opt_get_number(opts, "fd", -1);
1123 close(fd);
1124
1125 return 0;
1126 }
1127 #endif
1128
1129 /***********************************************************/
1130 /* QEMU Block devices */
1131
1132 #define HD_OPTS "media=disk"
1133 #define CDROM_OPTS "media=cdrom"
1134 #define FD_OPTS ""
1135 #define PFLASH_OPTS ""
1136 #define MTD_OPTS ""
1137 #define SD_OPTS ""
1138
1139 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1140 {
1141 BlockInterfaceType *block_default_type = opaque;
1142
1143 return drive_new(opts, *block_default_type, errp) == NULL;
1144 }
1145
1146 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1147 {
1148 if (qemu_opt_get(opts, "snapshot") == NULL) {
1149 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1150 }
1151 return 0;
1152 }
1153
1154 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1155 int index, const char *optstr)
1156 {
1157 QemuOpts *opts;
1158 DriveInfo *dinfo;
1159
1160 if (!enable || drive_get_by_index(type, index)) {
1161 return;
1162 }
1163
1164 opts = drive_add(type, index, NULL, optstr);
1165 if (snapshot) {
1166 drive_enable_snapshot(NULL, opts, NULL);
1167 }
1168
1169 dinfo = drive_new(opts, type, &error_abort);
1170 dinfo->is_default = true;
1171
1172 }
1173
1174 typedef struct BlockdevOptionsQueueEntry {
1175 BlockdevOptions *bdo;
1176 Location loc;
1177 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1178 } BlockdevOptionsQueueEntry;
1179
1180 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1181
1182 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1183 MachineClass *machine_class, int snapshot)
1184 {
1185 /*
1186 * If the currently selected machine wishes to override the
1187 * units-per-bus property of its default HBA interface type, do so
1188 * now.
1189 */
1190 if (machine_class->units_per_default_bus) {
1191 override_max_devs(machine_class->block_default_type,
1192 machine_class->units_per_default_bus);
1193 }
1194
1195 /* open the virtual block devices */
1196 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1197 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1198
1199 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1200 loc_push_restore(&bdo->loc);
1201 qmp_blockdev_add(bdo->bdo, &error_fatal);
1202 loc_pop(&bdo->loc);
1203 qapi_free_BlockdevOptions(bdo->bdo);
1204 g_free(bdo);
1205 }
1206 if (snapshot) {
1207 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1208 NULL, NULL);
1209 }
1210 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1211 &machine_class->block_default_type, &error_fatal)) {
1212 /* We printed help */
1213 exit(0);
1214 }
1215
1216 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1217 CDROM_OPTS);
1218 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1219 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1220
1221 }
1222
1223 static QemuOptsList qemu_smp_opts = {
1224 .name = "smp-opts",
1225 .implied_opt_name = "cpus",
1226 .merge_lists = true,
1227 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1228 .desc = {
1229 {
1230 .name = "cpus",
1231 .type = QEMU_OPT_NUMBER,
1232 }, {
1233 .name = "sockets",
1234 .type = QEMU_OPT_NUMBER,
1235 }, {
1236 .name = "dies",
1237 .type = QEMU_OPT_NUMBER,
1238 }, {
1239 .name = "cores",
1240 .type = QEMU_OPT_NUMBER,
1241 }, {
1242 .name = "threads",
1243 .type = QEMU_OPT_NUMBER,
1244 }, {
1245 .name = "maxcpus",
1246 .type = QEMU_OPT_NUMBER,
1247 },
1248 { /*End of list */ }
1249 },
1250 };
1251
1252 static void realtime_init(void)
1253 {
1254 if (enable_mlock) {
1255 if (os_mlock() < 0) {
1256 error_report("locking memory failed");
1257 exit(1);
1258 }
1259 }
1260 }
1261
1262
1263 static void configure_msg(QemuOpts *opts)
1264 {
1265 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1266 }
1267
1268
1269 /* Now we still need this for compatibility with XEN. */
1270 bool has_igd_gfx_passthru;
1271 static void igd_gfx_passthru(void)
1272 {
1273 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1274 }
1275
1276 /***********************************************************/
1277 /* USB devices */
1278
1279 static int usb_device_add(const char *devname)
1280 {
1281 USBDevice *dev = NULL;
1282
1283 if (!machine_usb(current_machine)) {
1284 return -1;
1285 }
1286
1287 dev = usbdevice_create(devname);
1288 if (!dev)
1289 return -1;
1290
1291 return 0;
1292 }
1293
1294 static int usb_parse(const char *cmdline)
1295 {
1296 int r;
1297 r = usb_device_add(cmdline);
1298 if (r < 0) {
1299 error_report("could not add USB device '%s'", cmdline);
1300 }
1301 return r;
1302 }
1303
1304 /***********************************************************/
1305 /* machine registration */
1306
1307 MachineState *current_machine;
1308
1309 static MachineClass *find_machine(const char *name, GSList *machines)
1310 {
1311 GSList *el;
1312
1313 for (el = machines; el; el = el->next) {
1314 MachineClass *mc = el->data;
1315
1316 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1317 return mc;
1318 }
1319 }
1320
1321 return NULL;
1322 }
1323
1324 static MachineClass *find_default_machine(GSList *machines)
1325 {
1326 GSList *el;
1327
1328 for (el = machines; el; el = el->next) {
1329 MachineClass *mc = el->data;
1330
1331 if (mc->is_default) {
1332 return mc;
1333 }
1334 }
1335
1336 return NULL;
1337 }
1338
1339 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1340 {
1341 ObjectProperty *prop;
1342 ObjectPropertyIterator iter;
1343
1344 if (!qemu_opt_has_help_opt(opts)) {
1345 return 0;
1346 }
1347
1348 object_property_iter_init(&iter, OBJECT(machine));
1349 while ((prop = object_property_iter_next(&iter))) {
1350 if (!prop->set) {
1351 continue;
1352 }
1353
1354 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1355 prop->name, prop->type);
1356 if (prop->description) {
1357 printf(" (%s)\n", prop->description);
1358 } else {
1359 printf("\n");
1360 }
1361 }
1362
1363 return 1;
1364 }
1365
1366 struct VMChangeStateEntry {
1367 VMChangeStateHandler *cb;
1368 void *opaque;
1369 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1370 int priority;
1371 };
1372
1373 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1374
1375 /**
1376 * qemu_add_vm_change_state_handler_prio:
1377 * @cb: the callback to invoke
1378 * @opaque: user data passed to the callback
1379 * @priority: low priorities execute first when the vm runs and the reverse is
1380 * true when the vm stops
1381 *
1382 * Register a callback function that is invoked when the vm starts or stops
1383 * running.
1384 *
1385 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1386 */
1387 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1388 VMChangeStateHandler *cb, void *opaque, int priority)
1389 {
1390 VMChangeStateEntry *e;
1391 VMChangeStateEntry *other;
1392
1393 e = g_malloc0(sizeof(*e));
1394 e->cb = cb;
1395 e->opaque = opaque;
1396 e->priority = priority;
1397
1398 /* Keep list sorted in ascending priority order */
1399 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1400 if (priority < other->priority) {
1401 QTAILQ_INSERT_BEFORE(other, e, entries);
1402 return e;
1403 }
1404 }
1405
1406 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1407 return e;
1408 }
1409
1410 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1411 void *opaque)
1412 {
1413 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1414 }
1415
1416 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1417 {
1418 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1419 g_free(e);
1420 }
1421
1422 void vm_state_notify(int running, RunState state)
1423 {
1424 VMChangeStateEntry *e, *next;
1425
1426 trace_vm_state_notify(running, state, RunState_str(state));
1427
1428 if (running) {
1429 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1430 e->cb(e->opaque, running, state);
1431 }
1432 } else {
1433 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1434 e->cb(e->opaque, running, state);
1435 }
1436 }
1437 }
1438
1439 static ShutdownCause reset_requested;
1440 static ShutdownCause shutdown_requested;
1441 static int shutdown_signal;
1442 static pid_t shutdown_pid;
1443 static int powerdown_requested;
1444 static int debug_requested;
1445 static int suspend_requested;
1446 static bool preconfig_exit_requested = true;
1447 static WakeupReason wakeup_reason;
1448 static NotifierList powerdown_notifiers =
1449 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1450 static NotifierList suspend_notifiers =
1451 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1452 static NotifierList wakeup_notifiers =
1453 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1454 static NotifierList shutdown_notifiers =
1455 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1456 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1457
1458 ShutdownCause qemu_shutdown_requested_get(void)
1459 {
1460 return shutdown_requested;
1461 }
1462
1463 ShutdownCause qemu_reset_requested_get(void)
1464 {
1465 return reset_requested;
1466 }
1467
1468 static int qemu_shutdown_requested(void)
1469 {
1470 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1471 }
1472
1473 static void qemu_kill_report(void)
1474 {
1475 if (!qtest_driver() && shutdown_signal) {
1476 if (shutdown_pid == 0) {
1477 /* This happens for eg ^C at the terminal, so it's worth
1478 * avoiding printing an odd message in that case.
1479 */
1480 error_report("terminating on signal %d", shutdown_signal);
1481 } else {
1482 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1483
1484 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1485 shutdown_signal, shutdown_pid,
1486 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1487 g_free(shutdown_cmd);
1488 }
1489 shutdown_signal = 0;
1490 }
1491 }
1492
1493 static ShutdownCause qemu_reset_requested(void)
1494 {
1495 ShutdownCause r = reset_requested;
1496
1497 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1498 reset_requested = SHUTDOWN_CAUSE_NONE;
1499 return r;
1500 }
1501 return SHUTDOWN_CAUSE_NONE;
1502 }
1503
1504 static int qemu_suspend_requested(void)
1505 {
1506 int r = suspend_requested;
1507 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1508 suspend_requested = 0;
1509 return r;
1510 }
1511 return false;
1512 }
1513
1514 static WakeupReason qemu_wakeup_requested(void)
1515 {
1516 return wakeup_reason;
1517 }
1518
1519 static int qemu_powerdown_requested(void)
1520 {
1521 int r = powerdown_requested;
1522 powerdown_requested = 0;
1523 return r;
1524 }
1525
1526 static int qemu_debug_requested(void)
1527 {
1528 int r = debug_requested;
1529 debug_requested = 0;
1530 return r;
1531 }
1532
1533 void qemu_exit_preconfig_request(void)
1534 {
1535 preconfig_exit_requested = true;
1536 }
1537
1538 /*
1539 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1540 */
1541 void qemu_system_reset(ShutdownCause reason)
1542 {
1543 MachineClass *mc;
1544
1545 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1546
1547 cpu_synchronize_all_states();
1548
1549 if (mc && mc->reset) {
1550 mc->reset(current_machine);
1551 } else {
1552 qemu_devices_reset();
1553 }
1554 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1555 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1556 }
1557 cpu_synchronize_all_post_reset();
1558 }
1559
1560 /*
1561 * Wake the VM after suspend.
1562 */
1563 static void qemu_system_wakeup(void)
1564 {
1565 MachineClass *mc;
1566
1567 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1568
1569 if (mc && mc->wakeup) {
1570 mc->wakeup(current_machine);
1571 }
1572 }
1573
1574 void qemu_system_guest_panicked(GuestPanicInformation *info)
1575 {
1576 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1577
1578 if (current_cpu) {
1579 current_cpu->crash_occurred = true;
1580 }
1581 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1582 !!info, info);
1583 vm_stop(RUN_STATE_GUEST_PANICKED);
1584 if (!no_shutdown) {
1585 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1586 !!info, info);
1587 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1588 }
1589
1590 if (info) {
1591 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1592 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1593 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1594 info->u.hyper_v.arg1,
1595 info->u.hyper_v.arg2,
1596 info->u.hyper_v.arg3,
1597 info->u.hyper_v.arg4,
1598 info->u.hyper_v.arg5);
1599 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1600 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1601 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1602 info->u.s390.core,
1603 S390CrashReason_str(info->u.s390.reason),
1604 info->u.s390.psw_mask,
1605 info->u.s390.psw_addr);
1606 }
1607 qapi_free_GuestPanicInformation(info);
1608 }
1609 }
1610
1611 void qemu_system_reset_request(ShutdownCause reason)
1612 {
1613 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1614 shutdown_requested = reason;
1615 } else {
1616 reset_requested = reason;
1617 }
1618 cpu_stop_current();
1619 qemu_notify_event();
1620 }
1621
1622 static void qemu_system_suspend(void)
1623 {
1624 pause_all_vcpus();
1625 notifier_list_notify(&suspend_notifiers, NULL);
1626 runstate_set(RUN_STATE_SUSPENDED);
1627 qapi_event_send_suspend();
1628 }
1629
1630 void qemu_system_suspend_request(void)
1631 {
1632 if (runstate_check(RUN_STATE_SUSPENDED)) {
1633 return;
1634 }
1635 suspend_requested = 1;
1636 cpu_stop_current();
1637 qemu_notify_event();
1638 }
1639
1640 void qemu_register_suspend_notifier(Notifier *notifier)
1641 {
1642 notifier_list_add(&suspend_notifiers, notifier);
1643 }
1644
1645 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1646 {
1647 trace_system_wakeup_request(reason);
1648
1649 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1650 error_setg(errp,
1651 "Unable to wake up: guest is not in suspended state");
1652 return;
1653 }
1654 if (!(wakeup_reason_mask & (1 << reason))) {
1655 return;
1656 }
1657 runstate_set(RUN_STATE_RUNNING);
1658 wakeup_reason = reason;
1659 qemu_notify_event();
1660 }
1661
1662 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1663 {
1664 if (enabled) {
1665 wakeup_reason_mask |= (1 << reason);
1666 } else {
1667 wakeup_reason_mask &= ~(1 << reason);
1668 }
1669 }
1670
1671 void qemu_register_wakeup_notifier(Notifier *notifier)
1672 {
1673 notifier_list_add(&wakeup_notifiers, notifier);
1674 }
1675
1676 void qemu_register_wakeup_support(void)
1677 {
1678 wakeup_suspend_enabled = true;
1679 }
1680
1681 bool qemu_wakeup_suspend_enabled(void)
1682 {
1683 return wakeup_suspend_enabled;
1684 }
1685
1686 void qemu_system_killed(int signal, pid_t pid)
1687 {
1688 shutdown_signal = signal;
1689 shutdown_pid = pid;
1690 no_shutdown = 0;
1691
1692 /* Cannot call qemu_system_shutdown_request directly because
1693 * we are in a signal handler.
1694 */
1695 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1696 qemu_notify_event();
1697 }
1698
1699 void qemu_system_shutdown_request(ShutdownCause reason)
1700 {
1701 trace_qemu_system_shutdown_request(reason);
1702 replay_shutdown_request(reason);
1703 shutdown_requested = reason;
1704 qemu_notify_event();
1705 }
1706
1707 static void qemu_system_powerdown(void)
1708 {
1709 qapi_event_send_powerdown();
1710 notifier_list_notify(&powerdown_notifiers, NULL);
1711 }
1712
1713 static void qemu_system_shutdown(ShutdownCause cause)
1714 {
1715 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1716 notifier_list_notify(&shutdown_notifiers, &cause);
1717 }
1718
1719 void qemu_system_powerdown_request(void)
1720 {
1721 trace_qemu_system_powerdown_request();
1722 powerdown_requested = 1;
1723 qemu_notify_event();
1724 }
1725
1726 void qemu_register_powerdown_notifier(Notifier *notifier)
1727 {
1728 notifier_list_add(&powerdown_notifiers, notifier);
1729 }
1730
1731 void qemu_register_shutdown_notifier(Notifier *notifier)
1732 {
1733 notifier_list_add(&shutdown_notifiers, notifier);
1734 }
1735
1736 void qemu_system_debug_request(void)
1737 {
1738 debug_requested = 1;
1739 qemu_notify_event();
1740 }
1741
1742 static bool main_loop_should_exit(void)
1743 {
1744 RunState r;
1745 ShutdownCause request;
1746
1747 if (preconfig_exit_requested) {
1748 if (runstate_check(RUN_STATE_PRECONFIG)) {
1749 runstate_set(RUN_STATE_PRELAUNCH);
1750 }
1751 preconfig_exit_requested = false;
1752 return true;
1753 }
1754 if (qemu_debug_requested()) {
1755 vm_stop(RUN_STATE_DEBUG);
1756 }
1757 if (qemu_suspend_requested()) {
1758 qemu_system_suspend();
1759 }
1760 request = qemu_shutdown_requested();
1761 if (request) {
1762 qemu_kill_report();
1763 qemu_system_shutdown(request);
1764 if (no_shutdown) {
1765 vm_stop(RUN_STATE_SHUTDOWN);
1766 } else {
1767 return true;
1768 }
1769 }
1770 request = qemu_reset_requested();
1771 if (request) {
1772 pause_all_vcpus();
1773 qemu_system_reset(request);
1774 resume_all_vcpus();
1775 if (!runstate_check(RUN_STATE_RUNNING) &&
1776 !runstate_check(RUN_STATE_INMIGRATE)) {
1777 runstate_set(RUN_STATE_PRELAUNCH);
1778 }
1779 }
1780 if (qemu_wakeup_requested()) {
1781 pause_all_vcpus();
1782 qemu_system_wakeup();
1783 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1784 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1785 resume_all_vcpus();
1786 qapi_event_send_wakeup();
1787 }
1788 if (qemu_powerdown_requested()) {
1789 qemu_system_powerdown();
1790 }
1791 if (qemu_vmstop_requested(&r)) {
1792 vm_stop(r);
1793 }
1794 return false;
1795 }
1796
1797 static void main_loop(void)
1798 {
1799 #ifdef CONFIG_PROFILER
1800 int64_t ti;
1801 #endif
1802 while (!main_loop_should_exit()) {
1803 #ifdef CONFIG_PROFILER
1804 ti = profile_getclock();
1805 #endif
1806 main_loop_wait(false);
1807 #ifdef CONFIG_PROFILER
1808 dev_time += profile_getclock() - ti;
1809 #endif
1810 }
1811 }
1812
1813 static void version(void)
1814 {
1815 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1816 QEMU_COPYRIGHT "\n");
1817 }
1818
1819 static void help(int exitcode)
1820 {
1821 version();
1822 printf("usage: %s [options] [disk_image]\n\n"
1823 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1824 error_get_progname());
1825
1826 #define QEMU_OPTIONS_GENERATE_HELP
1827 #include "qemu-options-wrapper.h"
1828
1829 printf("\nDuring emulation, the following keys are useful:\n"
1830 "ctrl-alt-f toggle full screen\n"
1831 "ctrl-alt-n switch to virtual console 'n'\n"
1832 "ctrl-alt toggle mouse and keyboard grab\n"
1833 "\n"
1834 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1835 "\n"
1836 QEMU_HELP_BOTTOM "\n");
1837
1838 exit(exitcode);
1839 }
1840
1841 #define HAS_ARG 0x0001
1842
1843 typedef struct QEMUOption {
1844 const char *name;
1845 int flags;
1846 int index;
1847 uint32_t arch_mask;
1848 } QEMUOption;
1849
1850 static const QEMUOption qemu_options[] = {
1851 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1852 #define QEMU_OPTIONS_GENERATE_OPTIONS
1853 #include "qemu-options-wrapper.h"
1854 { NULL },
1855 };
1856
1857 typedef struct VGAInterfaceInfo {
1858 const char *opt_name; /* option name */
1859 const char *name; /* human-readable name */
1860 /* Class names indicating that support is available.
1861 * If no class is specified, the interface is always available */
1862 const char *class_names[2];
1863 } VGAInterfaceInfo;
1864
1865 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1866 [VGA_NONE] = {
1867 .opt_name = "none",
1868 .name = "no graphic card",
1869 },
1870 [VGA_STD] = {
1871 .opt_name = "std",
1872 .name = "standard VGA",
1873 .class_names = { "VGA", "isa-vga" },
1874 },
1875 [VGA_CIRRUS] = {
1876 .opt_name = "cirrus",
1877 .name = "Cirrus VGA",
1878 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1879 },
1880 [VGA_VMWARE] = {
1881 .opt_name = "vmware",
1882 .name = "VMWare SVGA",
1883 .class_names = { "vmware-svga" },
1884 },
1885 [VGA_VIRTIO] = {
1886 .opt_name = "virtio",
1887 .name = "Virtio VGA",
1888 .class_names = { "virtio-vga" },
1889 },
1890 [VGA_QXL] = {
1891 .opt_name = "qxl",
1892 .name = "QXL VGA",
1893 .class_names = { "qxl-vga" },
1894 },
1895 [VGA_TCX] = {
1896 .opt_name = "tcx",
1897 .name = "TCX framebuffer",
1898 .class_names = { "SUNW,tcx" },
1899 },
1900 [VGA_CG3] = {
1901 .opt_name = "cg3",
1902 .name = "CG3 framebuffer",
1903 .class_names = { "cgthree" },
1904 },
1905 [VGA_XENFB] = {
1906 .opt_name = "xenfb",
1907 .name = "Xen paravirtualized framebuffer",
1908 },
1909 };
1910
1911 static bool vga_interface_available(VGAInterfaceType t)
1912 {
1913 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1914
1915 assert(t < VGA_TYPE_MAX);
1916 return !ti->class_names[0] ||
1917 object_class_by_name(ti->class_names[0]) ||
1918 object_class_by_name(ti->class_names[1]);
1919 }
1920
1921 static const char *
1922 get_default_vga_model(const MachineClass *machine_class)
1923 {
1924 if (machine_class->default_display) {
1925 return machine_class->default_display;
1926 } else if (vga_interface_available(VGA_CIRRUS)) {
1927 return "cirrus";
1928 } else if (vga_interface_available(VGA_STD)) {
1929 return "std";
1930 }
1931
1932 return NULL;
1933 }
1934
1935 static void select_vgahw(const MachineClass *machine_class, const char *p)
1936 {
1937 const char *opts;
1938 int t;
1939
1940 if (g_str_equal(p, "help")) {
1941 const char *def = get_default_vga_model(machine_class);
1942
1943 for (t = 0; t < VGA_TYPE_MAX; t++) {
1944 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1945
1946 if (vga_interface_available(t) && ti->opt_name) {
1947 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1948 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1949 }
1950 }
1951 exit(0);
1952 }
1953
1954 assert(vga_interface_type == VGA_NONE);
1955 for (t = 0; t < VGA_TYPE_MAX; t++) {
1956 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1957 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1958 if (!vga_interface_available(t)) {
1959 error_report("%s not available", ti->name);
1960 exit(1);
1961 }
1962 vga_interface_type = t;
1963 break;
1964 }
1965 }
1966 if (t == VGA_TYPE_MAX) {
1967 invalid_vga:
1968 error_report("unknown vga type: %s", p);
1969 exit(1);
1970 }
1971 while (*opts) {
1972 const char *nextopt;
1973
1974 if (strstart(opts, ",retrace=", &nextopt)) {
1975 opts = nextopt;
1976 if (strstart(opts, "dumb", &nextopt))
1977 vga_retrace_method = VGA_RETRACE_DUMB;
1978 else if (strstart(opts, "precise", &nextopt))
1979 vga_retrace_method = VGA_RETRACE_PRECISE;
1980 else goto invalid_vga;
1981 } else goto invalid_vga;
1982 opts = nextopt;
1983 }
1984 }
1985
1986 static void parse_display_qapi(const char *optarg)
1987 {
1988 DisplayOptions *opts;
1989 Visitor *v;
1990
1991 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1992
1993 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1994 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1995
1996 qapi_free_DisplayOptions(opts);
1997 visit_free(v);
1998 }
1999
2000 DisplayOptions *qmp_query_display_options(Error **errp)
2001 {
2002 return QAPI_CLONE(DisplayOptions, &dpy);
2003 }
2004
2005 static void parse_display(const char *p)
2006 {
2007 const char *opts;
2008
2009 if (strstart(p, "sdl", &opts)) {
2010 /*
2011 * sdl DisplayType needs hand-crafted parser instead of
2012 * parse_display_qapi() due to some options not in
2013 * DisplayOptions, specifically:
2014 * - frame
2015 * Already deprecated.
2016 * - ctrl_grab + alt_grab
2017 * Not clear yet what happens to them long-term. Should
2018 * replaced by something better or deprecated and dropped.
2019 */
2020 dpy.type = DISPLAY_TYPE_SDL;
2021 while (*opts) {
2022 const char *nextopt;
2023
2024 if (strstart(opts, ",alt_grab=", &nextopt)) {
2025 opts = nextopt;
2026 if (strstart(opts, "on", &nextopt)) {
2027 alt_grab = 1;
2028 } else if (strstart(opts, "off", &nextopt)) {
2029 alt_grab = 0;
2030 } else {
2031 goto invalid_sdl_args;
2032 }
2033 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2034 opts = nextopt;
2035 if (strstart(opts, "on", &nextopt)) {
2036 ctrl_grab = 1;
2037 } else if (strstart(opts, "off", &nextopt)) {
2038 ctrl_grab = 0;
2039 } else {
2040 goto invalid_sdl_args;
2041 }
2042 } else if (strstart(opts, ",window_close=", &nextopt)) {
2043 opts = nextopt;
2044 dpy.has_window_close = true;
2045 if (strstart(opts, "on", &nextopt)) {
2046 dpy.window_close = true;
2047 } else if (strstart(opts, "off", &nextopt)) {
2048 dpy.window_close = false;
2049 } else {
2050 goto invalid_sdl_args;
2051 }
2052 } else if (strstart(opts, ",gl=", &nextopt)) {
2053 opts = nextopt;
2054 dpy.has_gl = true;
2055 if (strstart(opts, "on", &nextopt)) {
2056 dpy.gl = DISPLAYGL_MODE_ON;
2057 } else if (strstart(opts, "core", &nextopt)) {
2058 dpy.gl = DISPLAYGL_MODE_CORE;
2059 } else if (strstart(opts, "es", &nextopt)) {
2060 dpy.gl = DISPLAYGL_MODE_ES;
2061 } else if (strstart(opts, "off", &nextopt)) {
2062 dpy.gl = DISPLAYGL_MODE_OFF;
2063 } else {
2064 goto invalid_sdl_args;
2065 }
2066 } else {
2067 invalid_sdl_args:
2068 error_report("invalid SDL option string");
2069 exit(1);
2070 }
2071 opts = nextopt;
2072 }
2073 } else if (strstart(p, "vnc", &opts)) {
2074 /*
2075 * vnc isn't a (local) DisplayType but a protocol for remote
2076 * display access.
2077 */
2078 if (*opts == '=') {
2079 vnc_parse(opts + 1, &error_fatal);
2080 } else {
2081 error_report("VNC requires a display argument vnc=<display>");
2082 exit(1);
2083 }
2084 } else {
2085 parse_display_qapi(p);
2086 }
2087 }
2088
2089 char *qemu_find_file(int type, const char *name)
2090 {
2091 int i;
2092 const char *subdir;
2093 char *buf;
2094
2095 /* Try the name as a straight path first */
2096 if (access(name, R_OK) == 0) {
2097 trace_load_file(name, name);
2098 return g_strdup(name);
2099 }
2100
2101 switch (type) {
2102 case QEMU_FILE_TYPE_BIOS:
2103 subdir = "";
2104 break;
2105 case QEMU_FILE_TYPE_KEYMAP:
2106 subdir = "keymaps/";
2107 break;
2108 default:
2109 abort();
2110 }
2111
2112 for (i = 0; i < data_dir_idx; i++) {
2113 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2114 if (access(buf, R_OK) == 0) {
2115 trace_load_file(name, buf);
2116 return buf;
2117 }
2118 g_free(buf);
2119 }
2120 return NULL;
2121 }
2122
2123 static void qemu_add_data_dir(const char *path)
2124 {
2125 int i;
2126
2127 if (path == NULL) {
2128 return;
2129 }
2130 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2131 return;
2132 }
2133 for (i = 0; i < data_dir_idx; i++) {
2134 if (strcmp(data_dir[i], path) == 0) {
2135 return; /* duplicate */
2136 }
2137 }
2138 data_dir[data_dir_idx++] = g_strdup(path);
2139 }
2140
2141 static inline bool nonempty_str(const char *str)
2142 {
2143 return str && *str;
2144 }
2145
2146 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2147 {
2148 gchar *buf;
2149 size_t size;
2150 const char *name, *file, *str;
2151 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2152
2153 if (fw_cfg == NULL) {
2154 error_setg(errp, "fw_cfg device not available");
2155 return -1;
2156 }
2157 name = qemu_opt_get(opts, "name");
2158 file = qemu_opt_get(opts, "file");
2159 str = qemu_opt_get(opts, "string");
2160
2161 /* we need name and either a file or the content string */
2162 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2163 error_setg(errp, "invalid argument(s)");
2164 return -1;
2165 }
2166 if (nonempty_str(file) && nonempty_str(str)) {
2167 error_setg(errp, "file and string are mutually exclusive");
2168 return -1;
2169 }
2170 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2171 error_setg(errp, "name too long (max. %d char)",
2172 FW_CFG_MAX_FILE_PATH - 1);
2173 return -1;
2174 }
2175 if (strncmp(name, "opt/", 4) != 0) {
2176 warn_report("externally provided fw_cfg item names "
2177 "should be prefixed with \"opt/\"");
2178 }
2179 if (nonempty_str(str)) {
2180 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2181 buf = g_memdup(str, size);
2182 } else {
2183 GError *err = NULL;
2184 if (!g_file_get_contents(file, &buf, &size, &err)) {
2185 error_setg(errp, "can't load %s: %s", file, err->message);
2186 g_error_free(err);
2187 return -1;
2188 }
2189 }
2190 /* For legacy, keep user files in a specific global order. */
2191 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2192 fw_cfg_add_file(fw_cfg, name, buf, size);
2193 fw_cfg_reset_order_override(fw_cfg);
2194 return 0;
2195 }
2196
2197 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2198 {
2199 return qdev_device_help(opts);
2200 }
2201
2202 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2203 {
2204 DeviceState *dev;
2205
2206 dev = qdev_device_add(opts, errp);
2207 if (!dev) {
2208 return -1;
2209 }
2210 object_unref(OBJECT(dev));
2211 return 0;
2212 }
2213
2214 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2215 {
2216 Error *local_err = NULL;
2217
2218 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2219 if (local_err) {
2220 error_propagate(errp, local_err);
2221 return -1;
2222 }
2223 exit(0);
2224 }
2225 return 0;
2226 }
2227
2228 #ifdef CONFIG_VIRTFS
2229 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2230 {
2231 return qemu_fsdev_add(opts, errp);
2232 }
2233 #endif
2234
2235 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2236 {
2237 Chardev *chr;
2238 bool qmp;
2239 bool pretty = false;
2240 const char *chardev;
2241 const char *mode;
2242
2243 mode = qemu_opt_get(opts, "mode");
2244 if (mode == NULL) {
2245 mode = "readline";
2246 }
2247 if (strcmp(mode, "readline") == 0) {
2248 qmp = false;
2249 } else if (strcmp(mode, "control") == 0) {
2250 qmp = true;
2251 } else {
2252 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2253 return -1;
2254 }
2255
2256 if (!qmp && qemu_opt_get(opts, "pretty")) {
2257 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2258 "and will be removed in future versions");
2259 }
2260 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2261 pretty = true;
2262 }
2263
2264 chardev = qemu_opt_get(opts, "chardev");
2265 if (!chardev) {
2266 error_report("chardev is required");
2267 exit(1);
2268 }
2269 chr = qemu_chr_find(chardev);
2270 if (chr == NULL) {
2271 error_setg(errp, "chardev \"%s\" not found", chardev);
2272 return -1;
2273 }
2274
2275 if (qmp) {
2276 monitor_init_qmp(chr, pretty);
2277 } else {
2278 monitor_init_hmp(chr, true);
2279 }
2280 return 0;
2281 }
2282
2283 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2284 {
2285 static int monitor_device_index = 0;
2286 QemuOpts *opts;
2287 const char *p;
2288 char label[32];
2289
2290 if (strstart(optarg, "chardev:", &p)) {
2291 snprintf(label, sizeof(label), "%s", p);
2292 } else {
2293 snprintf(label, sizeof(label), "compat_monitor%d",
2294 monitor_device_index);
2295 opts = qemu_chr_parse_compat(label, optarg, true);
2296 if (!opts) {
2297 error_report("parse error: %s", optarg);
2298 exit(1);
2299 }
2300 }
2301
2302 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2303 qemu_opt_set(opts, "mode", mode, &error_abort);
2304 qemu_opt_set(opts, "chardev", label, &error_abort);
2305 if (!strcmp(mode, "control")) {
2306 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2307 } else {
2308 assert(pretty == false);
2309 }
2310 monitor_device_index++;
2311 }
2312
2313 struct device_config {
2314 enum {
2315 DEV_USB, /* -usbdevice */
2316 DEV_BT, /* -bt */
2317 DEV_SERIAL, /* -serial */
2318 DEV_PARALLEL, /* -parallel */
2319 DEV_DEBUGCON, /* -debugcon */
2320 DEV_GDB, /* -gdb, -s */
2321 DEV_SCLP, /* s390 sclp */
2322 } type;
2323 const char *cmdline;
2324 Location loc;
2325 QTAILQ_ENTRY(device_config) next;
2326 };
2327
2328 static QTAILQ_HEAD(, device_config) device_configs =
2329 QTAILQ_HEAD_INITIALIZER(device_configs);
2330
2331 static void add_device_config(int type, const char *cmdline)
2332 {
2333 struct device_config *conf;
2334
2335 conf = g_malloc0(sizeof(*conf));
2336 conf->type = type;
2337 conf->cmdline = cmdline;
2338 loc_save(&conf->loc);
2339 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2340 }
2341
2342 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2343 {
2344 struct device_config *conf;
2345 int rc;
2346
2347 QTAILQ_FOREACH(conf, &device_configs, next) {
2348 if (conf->type != type)
2349 continue;
2350 loc_push_restore(&conf->loc);
2351 rc = func(conf->cmdline);
2352 loc_pop(&conf->loc);
2353 if (rc) {
2354 return rc;
2355 }
2356 }
2357 return 0;
2358 }
2359
2360 static int serial_parse(const char *devname)
2361 {
2362 int index = num_serial_hds;
2363 char label[32];
2364
2365 if (strcmp(devname, "none") == 0)
2366 return 0;
2367 snprintf(label, sizeof(label), "serial%d", index);
2368 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2369
2370 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2371 if (!serial_hds[index]) {
2372 error_report("could not connect serial device"
2373 " to character backend '%s'", devname);
2374 return -1;
2375 }
2376 num_serial_hds++;
2377 return 0;
2378 }
2379
2380 Chardev *serial_hd(int i)
2381 {
2382 assert(i >= 0);
2383 if (i < num_serial_hds) {
2384 return serial_hds[i];
2385 }
2386 return NULL;
2387 }
2388
2389 int serial_max_hds(void)
2390 {
2391 return num_serial_hds;
2392 }
2393
2394 static int parallel_parse(const char *devname)
2395 {
2396 static int index = 0;
2397 char label[32];
2398
2399 if (strcmp(devname, "none") == 0)
2400 return 0;
2401 if (index == MAX_PARALLEL_PORTS) {
2402 error_report("too many parallel ports");
2403 exit(1);
2404 }
2405 snprintf(label, sizeof(label), "parallel%d", index);
2406 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2407 if (!parallel_hds[index]) {
2408 error_report("could not connect parallel device"
2409 " to character backend '%s'", devname);
2410 return -1;
2411 }
2412 index++;
2413 return 0;
2414 }
2415
2416 static int debugcon_parse(const char *devname)
2417 {
2418 QemuOpts *opts;
2419
2420 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2421 error_report("invalid character backend '%s'", devname);
2422 exit(1);
2423 }
2424 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2425 if (!opts) {
2426 error_report("already have a debugcon device");
2427 exit(1);
2428 }
2429 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2430 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2431 return 0;
2432 }
2433
2434 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2435 {
2436 const MachineClass *mc1 = a, *mc2 = b;
2437 int res;
2438
2439 if (mc1->family == NULL) {
2440 if (mc2->family == NULL) {
2441 /* Compare standalone machine types against each other; they sort
2442 * in increasing order.
2443 */
2444 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2445 object_class_get_name(OBJECT_CLASS(mc2)));
2446 }
2447
2448 /* Standalone machine types sort after families. */
2449 return 1;
2450 }
2451
2452 if (mc2->family == NULL) {
2453 /* Families sort before standalone machine types. */
2454 return -1;
2455 }
2456
2457 /* Families sort between each other alphabetically increasingly. */
2458 res = strcmp(mc1->family, mc2->family);
2459 if (res != 0) {
2460 return res;
2461 }
2462
2463 /* Within the same family, machine types sort in decreasing order. */
2464 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2465 object_class_get_name(OBJECT_CLASS(mc1)));
2466 }
2467
2468 static MachineClass *machine_parse(const char *name, GSList *machines)
2469 {
2470 MachineClass *mc;
2471 GSList *el;
2472
2473 if (is_help_option(name)) {
2474 printf("Supported machines are:\n");
2475 machines = g_slist_sort(machines, machine_class_cmp);
2476 for (el = machines; el; el = el->next) {
2477 MachineClass *mc = el->data;
2478 if (mc->alias) {
2479 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2480 }
2481 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2482 mc->is_default ? " (default)" : "",
2483 mc->deprecation_reason ? " (deprecated)" : "");
2484 }
2485 exit(0);
2486 }
2487
2488 mc = find_machine(name, machines);
2489 if (!mc) {
2490 error_report("unsupported machine type");
2491 error_printf("Use -machine help to list supported machines\n");
2492 exit(1);
2493 }
2494 return mc;
2495 }
2496
2497 void qemu_add_exit_notifier(Notifier *notify)
2498 {
2499 notifier_list_add(&exit_notifiers, notify);
2500 }
2501
2502 void qemu_remove_exit_notifier(Notifier *notify)
2503 {
2504 notifier_remove(notify);
2505 }
2506
2507 static void qemu_run_exit_notifiers(void)
2508 {
2509 notifier_list_notify(&exit_notifiers, NULL);
2510 }
2511
2512 static const char *pid_file;
2513 static Notifier qemu_unlink_pidfile_notifier;
2514
2515 static void qemu_unlink_pidfile(Notifier *n, void *data)
2516 {
2517 if (pid_file) {
2518 unlink(pid_file);
2519 }
2520 }
2521
2522 bool machine_init_done;
2523
2524 void qemu_add_machine_init_done_notifier(Notifier *notify)
2525 {
2526 notifier_list_add(&machine_init_done_notifiers, notify);
2527 if (machine_init_done) {
2528 notify->notify(notify, NULL);
2529 }
2530 }
2531
2532 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2533 {
2534 notifier_remove(notify);
2535 }
2536
2537 static void qemu_run_machine_init_done_notifiers(void)
2538 {
2539 machine_init_done = true;
2540 notifier_list_notify(&machine_init_done_notifiers, NULL);
2541 }
2542
2543 static const QEMUOption *lookup_opt(int argc, char **argv,
2544 const char **poptarg, int *poptind)
2545 {
2546 const QEMUOption *popt;
2547 int optind = *poptind;
2548 char *r = argv[optind];
2549 const char *optarg;
2550
2551 loc_set_cmdline(argv, optind, 1);
2552 optind++;
2553 /* Treat --foo the same as -foo. */
2554 if (r[1] == '-')
2555 r++;
2556 popt = qemu_options;
2557 for(;;) {
2558 if (!popt->name) {
2559 error_report("invalid option");
2560 exit(1);
2561 }
2562 if (!strcmp(popt->name, r + 1))
2563 break;
2564 popt++;
2565 }
2566 if (popt->flags & HAS_ARG) {
2567 if (optind >= argc) {
2568 error_report("requires an argument");
2569 exit(1);
2570 }
2571 optarg = argv[optind++];
2572 loc_set_cmdline(argv, optind - 2, 2);
2573 } else {
2574 optarg = NULL;
2575 }
2576
2577 *poptarg = optarg;
2578 *poptind = optind;
2579
2580 return popt;
2581 }
2582
2583 static MachineClass *select_machine(void)
2584 {
2585 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2586 MachineClass *machine_class = find_default_machine(machines);
2587 const char *optarg;
2588 QemuOpts *opts;
2589 Location loc;
2590
2591 loc_push_none(&loc);
2592
2593 opts = qemu_get_machine_opts();
2594 qemu_opts_loc_restore(opts);
2595
2596 optarg = qemu_opt_get(opts, "type");
2597 if (optarg) {
2598 machine_class = machine_parse(optarg, machines);
2599 }
2600
2601 if (!machine_class) {
2602 error_report("No machine specified, and there is no default");
2603 error_printf("Use -machine help to list supported machines\n");
2604 exit(1);
2605 }
2606
2607 loc_pop(&loc);
2608 g_slist_free(machines);
2609 return machine_class;
2610 }
2611
2612 static int machine_set_property(void *opaque,
2613 const char *name, const char *value,
2614 Error **errp)
2615 {
2616 Object *obj = OBJECT(opaque);
2617 Error *local_err = NULL;
2618 char *p, *qom_name;
2619
2620 if (strcmp(name, "type") == 0) {
2621 return 0;
2622 }
2623
2624 qom_name = g_strdup(name);
2625 for (p = qom_name; *p; p++) {
2626 if (*p == '_') {
2627 *p = '-';
2628 }
2629 }
2630
2631 object_property_parse(obj, value, qom_name, &local_err);
2632 g_free(qom_name);
2633
2634 if (local_err) {
2635 error_propagate(errp, local_err);
2636 return -1;
2637 }
2638
2639 return 0;
2640 }
2641
2642
2643 /*
2644 * Initial object creation happens before all other
2645 * QEMU data types are created. The majority of objects
2646 * can be created at this point. The rng-egd object
2647 * cannot be created here, as it depends on the chardev
2648 * already existing.
2649 */
2650 static bool object_create_initial(const char *type, QemuOpts *opts)
2651 {
2652 if (user_creatable_print_help(type, opts)) {
2653 exit(0);
2654 }
2655
2656 /*
2657 * Objects should not be made "delayed" without a reason. If you
2658 * add one, state the reason in a comment!
2659 */
2660
2661 /* Reason: rng-egd property "chardev" */
2662 if (g_str_equal(type, "rng-egd")) {
2663 return false;
2664 }
2665
2666 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2667 /* Reason: cryptodev-vhost-user property "chardev" */
2668 if (g_str_equal(type, "cryptodev-vhost-user")) {
2669 return false;
2670 }
2671 #endif
2672
2673 /*
2674 * Reason: filter-* property "netdev" etc.
2675 */
2676 if (g_str_equal(type, "filter-buffer") ||
2677 g_str_equal(type, "filter-dump") ||
2678 g_str_equal(type, "filter-mirror") ||
2679 g_str_equal(type, "filter-redirector") ||
2680 g_str_equal(type, "colo-compare") ||
2681 g_str_equal(type, "filter-rewriter") ||
2682 g_str_equal(type, "filter-replay")) {
2683 return false;
2684 }
2685
2686 /* Memory allocation by backends needs to be done
2687 * after configure_accelerator() (due to the tcg_enabled()
2688 * checks at memory_region_init_*()).
2689 *
2690 * Also, allocation of large amounts of memory may delay
2691 * chardev initialization for too long, and trigger timeouts
2692 * on software that waits for a monitor socket to be created
2693 * (e.g. libvirt).
2694 */
2695 if (g_str_has_prefix(type, "memory-backend-")) {
2696 return false;
2697 }
2698
2699 return true;
2700 }
2701
2702
2703 /*
2704 * The remainder of object creation happens after the
2705 * creation of chardev, fsdev, net clients and device data types.
2706 */
2707 static bool object_create_delayed(const char *type, QemuOpts *opts)
2708 {
2709 return !object_create_initial(type, opts);
2710 }
2711
2712
2713 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2714 MachineClass *mc)
2715 {
2716 uint64_t sz;
2717 const char *mem_str;
2718 const ram_addr_t default_ram_size = mc->default_ram_size;
2719 QemuOpts *opts = qemu_find_opts_singleton("memory");
2720 Location loc;
2721
2722 loc_push_none(&loc);
2723 qemu_opts_loc_restore(opts);
2724
2725 sz = 0;
2726 mem_str = qemu_opt_get(opts, "size");
2727 if (mem_str) {
2728 if (!*mem_str) {
2729 error_report("missing 'size' option value");
2730 exit(EXIT_FAILURE);
2731 }
2732
2733 sz = qemu_opt_get_size(opts, "size", ram_size);
2734
2735 /* Fix up legacy suffix-less format */
2736 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2737 uint64_t overflow_check = sz;
2738
2739 sz *= MiB;
2740 if (sz / MiB != overflow_check) {
2741 error_report("too large 'size' option value");
2742 exit(EXIT_FAILURE);
2743 }
2744 }
2745 }
2746
2747 /* backward compatibility behaviour for case "-m 0" */
2748 if (sz == 0) {
2749 sz = default_ram_size;
2750 }
2751
2752 sz = QEMU_ALIGN_UP(sz, 8192);
2753 ram_size = sz;
2754 if (ram_size != sz) {
2755 error_report("ram size too large");
2756 exit(EXIT_FAILURE);
2757 }
2758
2759 /* store value for the future use */
2760 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2761 *maxram_size = ram_size;
2762
2763 if (qemu_opt_get(opts, "maxmem")) {
2764 uint64_t slots;
2765
2766 sz = qemu_opt_get_size(opts, "maxmem", 0);
2767 slots = qemu_opt_get_number(opts, "slots", 0);
2768 if (sz < ram_size) {
2769 error_report("invalid value of -m option maxmem: "
2770 "maximum memory size (0x%" PRIx64 ") must be at least "
2771 "the initial memory size (0x" RAM_ADDR_FMT ")",
2772 sz, ram_size);
2773 exit(EXIT_FAILURE);
2774 } else if (slots && sz == ram_size) {
2775 error_report("invalid value of -m option maxmem: "
2776 "memory slots were specified but maximum memory size "
2777 "(0x%" PRIx64 ") is equal to the initial memory size "
2778 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2779 exit(EXIT_FAILURE);
2780 }
2781
2782 *maxram_size = sz;
2783 *ram_slots = slots;
2784 } else if (qemu_opt_get(opts, "slots")) {
2785 error_report("invalid -m option value: missing 'maxmem' option");
2786 exit(EXIT_FAILURE);
2787 }
2788
2789 loc_pop(&loc);
2790 }
2791
2792 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2793 {
2794 GlobalProperty *g;
2795
2796 g = g_malloc0(sizeof(*g));
2797 g->driver = qemu_opt_get(opts, "driver");
2798 g->property = qemu_opt_get(opts, "property");
2799 g->value = qemu_opt_get(opts, "value");
2800 qdev_prop_register_global(g);
2801 return 0;
2802 }
2803
2804 static int qemu_read_default_config_file(void)
2805 {
2806 int ret;
2807
2808 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2809 if (ret < 0 && ret != -ENOENT) {
2810 return ret;
2811 }
2812
2813 return 0;
2814 }
2815
2816 static void user_register_global_props(void)
2817 {
2818 qemu_opts_foreach(qemu_find_opts("global"),
2819 global_init_func, NULL, NULL);
2820 }
2821
2822 int main(int argc, char **argv, char **envp)
2823 {
2824 int i;
2825 int snapshot, linux_boot;
2826 const char *initrd_filename;
2827 const char *kernel_filename, *kernel_cmdline;
2828 const char *boot_order = NULL;
2829 const char *boot_once = NULL;
2830 DisplayState *ds;
2831 QemuOpts *opts, *machine_opts;
2832 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2833 QemuOptsList *olist;
2834 int optind;
2835 const char *optarg;
2836 const char *loadvm = NULL;
2837 MachineClass *machine_class;
2838 const char *cpu_option;
2839 const char *vga_model = NULL;
2840 const char *qtest_chrdev = NULL;
2841 const char *qtest_log = NULL;
2842 const char *incoming = NULL;
2843 bool userconfig = true;
2844 bool nographic = false;
2845 int display_remote = 0;
2846 const char *log_mask = NULL;
2847 const char *log_file = NULL;
2848 char *trace_file = NULL;
2849 ram_addr_t maxram_size;
2850 uint64_t ram_slots = 0;
2851 FILE *vmstate_dump_file = NULL;
2852 Error *main_loop_err = NULL;
2853 Error *err = NULL;
2854 bool list_data_dirs = false;
2855 char *dir, **dirs;
2856 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2857
2858 os_set_line_buffering();
2859
2860 error_init(argv[0]);
2861 module_call_init(MODULE_INIT_TRACE);
2862
2863 qemu_init_cpu_list();
2864 qemu_init_cpu_loop();
2865
2866 qemu_mutex_lock_iothread();
2867
2868 atexit(qemu_run_exit_notifiers);
2869 qemu_init_exec_dir(argv[0]);
2870
2871 module_call_init(MODULE_INIT_QOM);
2872
2873 qemu_add_opts(&qemu_drive_opts);
2874 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2875 qemu_add_drive_opts(&qemu_common_drive_opts);
2876 qemu_add_drive_opts(&qemu_drive_opts);
2877 qemu_add_drive_opts(&bdrv_runtime_opts);
2878 qemu_add_opts(&qemu_chardev_opts);
2879 qemu_add_opts(&qemu_device_opts);
2880 qemu_add_opts(&qemu_netdev_opts);
2881 qemu_add_opts(&qemu_nic_opts);
2882 qemu_add_opts(&qemu_net_opts);
2883 qemu_add_opts(&qemu_rtc_opts);
2884 qemu_add_opts(&qemu_global_opts);
2885 qemu_add_opts(&qemu_mon_opts);
2886 qemu_add_opts(&qemu_trace_opts);
2887 qemu_add_opts(&qemu_option_rom_opts);
2888 qemu_add_opts(&qemu_machine_opts);
2889 qemu_add_opts(&qemu_accel_opts);
2890 qemu_add_opts(&qemu_mem_opts);
2891 qemu_add_opts(&qemu_smp_opts);
2892 qemu_add_opts(&qemu_boot_opts);
2893 qemu_add_opts(&qemu_add_fd_opts);
2894 qemu_add_opts(&qemu_object_opts);
2895 qemu_add_opts(&qemu_tpmdev_opts);
2896 qemu_add_opts(&qemu_realtime_opts);
2897 qemu_add_opts(&qemu_overcommit_opts);
2898 qemu_add_opts(&qemu_msg_opts);
2899 qemu_add_opts(&qemu_name_opts);
2900 qemu_add_opts(&qemu_numa_opts);
2901 qemu_add_opts(&qemu_icount_opts);
2902 qemu_add_opts(&qemu_semihosting_config_opts);
2903 qemu_add_opts(&qemu_fw_cfg_opts);
2904 module_call_init(MODULE_INIT_OPTS);
2905
2906 runstate_init();
2907 precopy_infrastructure_init();
2908 postcopy_infrastructure_init();
2909 monitor_init_globals();
2910
2911 if (qcrypto_init(&err) < 0) {
2912 error_reportf_err(err, "cannot initialize crypto: ");
2913 exit(1);
2914 }
2915
2916 QTAILQ_INIT(&vm_change_state_head);
2917 os_setup_early_signal_handling();
2918
2919 cpu_option = NULL;
2920 snapshot = 0;
2921
2922 nb_nics = 0;
2923
2924 bdrv_init_with_whitelist();
2925
2926 autostart = 1;
2927
2928 /* first pass of option parsing */
2929 optind = 1;
2930 while (optind < argc) {
2931 if (argv[optind][0] != '-') {
2932 /* disk image */
2933 optind++;
2934 } else {
2935 const QEMUOption *popt;
2936
2937 popt = lookup_opt(argc, argv, &optarg, &optind);
2938 switch (popt->index) {
2939 case QEMU_OPTION_nouserconfig:
2940 userconfig = false;
2941 break;
2942 }
2943 }
2944 }
2945
2946 if (userconfig) {
2947 if (qemu_read_default_config_file() < 0) {
2948 exit(1);
2949 }
2950 }
2951
2952 /* second pass of option parsing */
2953 optind = 1;
2954 for(;;) {
2955 if (optind >= argc)
2956 break;
2957 if (argv[optind][0] != '-') {
2958 loc_set_cmdline(argv, optind, 1);
2959 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2960 } else {
2961 const QEMUOption *popt;
2962
2963 popt = lookup_opt(argc, argv, &optarg, &optind);
2964 if (!(popt->arch_mask & arch_type)) {
2965 error_report("Option not supported for this target");
2966 exit(1);
2967 }
2968 switch(popt->index) {
2969 case QEMU_OPTION_cpu:
2970 /* hw initialization will check this */
2971 cpu_option = optarg;
2972 break;
2973 case QEMU_OPTION_hda:
2974 case QEMU_OPTION_hdb:
2975 case QEMU_OPTION_hdc:
2976 case QEMU_OPTION_hdd:
2977 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2978 HD_OPTS);
2979 break;
2980 case QEMU_OPTION_blockdev:
2981 {
2982 Visitor *v;
2983 BlockdevOptionsQueueEntry *bdo;
2984
2985 v = qobject_input_visitor_new_str(optarg, "driver",
2986 &error_fatal);
2987
2988 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2989 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2990 &error_fatal);
2991 visit_free(v);
2992 loc_save(&bdo->loc);
2993 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2994 break;
2995 }
2996 case QEMU_OPTION_drive:
2997 if (drive_def(optarg) == NULL) {
2998 exit(1);
2999 }
3000 break;
3001 case QEMU_OPTION_set:
3002 if (qemu_set_option(optarg) != 0)
3003 exit(1);
3004 break;
3005 case QEMU_OPTION_global:
3006 if (qemu_global_option(optarg) != 0)
3007 exit(1);
3008 break;
3009 case QEMU_OPTION_mtdblock:
3010 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3011 break;
3012 case QEMU_OPTION_sd:
3013 drive_add(IF_SD, -1, optarg, SD_OPTS);
3014 break;
3015 case QEMU_OPTION_pflash:
3016 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3017 break;
3018 case QEMU_OPTION_snapshot:
3019 {
3020 Error *blocker = NULL;
3021 snapshot = 1;
3022 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3023 "-snapshot");
3024 replay_add_blocker(blocker);
3025 }
3026 break;
3027 case QEMU_OPTION_numa:
3028 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3029 optarg, true);
3030 if (!opts) {
3031 exit(1);
3032 }
3033 break;
3034 case QEMU_OPTION_display:
3035 parse_display(optarg);
3036 break;
3037 case QEMU_OPTION_nographic:
3038 olist = qemu_find_opts("machine");
3039 qemu_opts_parse_noisily(olist, "graphics=off", false);
3040 nographic = true;
3041 dpy.type = DISPLAY_TYPE_NONE;
3042 break;
3043 case QEMU_OPTION_curses:
3044 #ifdef CONFIG_CURSES
3045 dpy.type = DISPLAY_TYPE_CURSES;
3046 #else
3047 error_report("curses or iconv support is disabled");
3048 exit(1);
3049 #endif
3050 break;
3051 case QEMU_OPTION_portrait:
3052 graphic_rotate = 90;
3053 break;
3054 case QEMU_OPTION_rotate:
3055 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3056 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3057 graphic_rotate != 180 && graphic_rotate != 270) {
3058 error_report("only 90, 180, 270 deg rotation is available");
3059 exit(1);
3060 }
3061 break;
3062 case QEMU_OPTION_kernel:
3063 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3064 &error_abort);
3065 break;
3066 case QEMU_OPTION_initrd:
3067 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3068 &error_abort);
3069 break;
3070 case QEMU_OPTION_append:
3071 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3072 &error_abort);
3073 break;
3074 case QEMU_OPTION_dtb:
3075 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3076 &error_abort);
3077 break;
3078 case QEMU_OPTION_cdrom:
3079 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3080 break;
3081 case QEMU_OPTION_boot:
3082 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3083 optarg, true);
3084 if (!opts) {
3085 exit(1);
3086 }
3087 break;
3088 case QEMU_OPTION_fda:
3089 case QEMU_OPTION_fdb:
3090 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3091 optarg, FD_OPTS);
3092 break;
3093 case QEMU_OPTION_no_fd_bootchk:
3094 fd_bootchk = 0;
3095 break;
3096 case QEMU_OPTION_netdev:
3097 default_net = 0;
3098 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3099 exit(1);
3100 }
3101 break;
3102 case QEMU_OPTION_nic:
3103 default_net = 0;
3104 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3105 exit(1);
3106 }
3107 break;
3108 case QEMU_OPTION_net:
3109 default_net = 0;
3110 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3111 exit(1);
3112 }
3113 break;
3114 #ifdef CONFIG_LIBISCSI
3115 case QEMU_OPTION_iscsi:
3116 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3117 optarg, false);
3118 if (!opts) {
3119 exit(1);
3120 }
3121 break;
3122 #endif
3123 case QEMU_OPTION_bt:
3124 warn_report("The bluetooth subsystem is deprecated and will "
3125 "be removed soon. If the bluetooth subsystem is "
3126 "still useful for you, please send a mail to "
3127 "qemu-devel@nongnu.org with your usecase.");
3128 add_device_config(DEV_BT, optarg);
3129 break;
3130 case QEMU_OPTION_audio_help:
3131 audio_legacy_help();
3132 exit (0);
3133 break;
3134 case QEMU_OPTION_audiodev:
3135 audio_parse_option(optarg);
3136 break;
3137 case QEMU_OPTION_soundhw:
3138 select_soundhw (optarg);
3139 break;
3140 case QEMU_OPTION_h:
3141 help(0);
3142 break;
3143 case QEMU_OPTION_version:
3144 version();
3145 exit(0);
3146 break;
3147 case QEMU_OPTION_m:
3148 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3149 optarg, true);
3150 if (!opts) {
3151 exit(EXIT_FAILURE);
3152 }
3153 break;
3154 #ifdef CONFIG_TPM
3155 case QEMU_OPTION_tpmdev:
3156 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3157 exit(1);
3158 }
3159 break;
3160 #endif
3161 case QEMU_OPTION_mempath:
3162 mem_path = optarg;
3163 break;
3164 case QEMU_OPTION_mem_prealloc:
3165 mem_prealloc = 1;
3166 break;
3167 case QEMU_OPTION_d:
3168 log_mask = optarg;
3169 break;
3170 case QEMU_OPTION_D:
3171 log_file = optarg;
3172 break;
3173 case QEMU_OPTION_DFILTER:
3174 qemu_set_dfilter_ranges(optarg, &error_fatal);
3175 break;
3176 case QEMU_OPTION_seed:
3177 qemu_guest_random_seed_main(optarg, &error_fatal);
3178 break;
3179 case QEMU_OPTION_s:
3180 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3181 break;
3182 case QEMU_OPTION_gdb:
3183 add_device_config(DEV_GDB, optarg);
3184 break;
3185 case QEMU_OPTION_L:
3186 if (is_help_option(optarg)) {
3187 list_data_dirs = true;
3188 } else {
3189 qemu_add_data_dir(optarg);
3190 }
3191 break;
3192 case QEMU_OPTION_bios:
3193 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3194 &error_abort);
3195 break;
3196 case QEMU_OPTION_singlestep:
3197 singlestep = 1;
3198 break;
3199 case QEMU_OPTION_S:
3200 autostart = 0;
3201 break;
3202 case QEMU_OPTION_k:
3203 keyboard_layout = optarg;
3204 break;
3205 case QEMU_OPTION_vga:
3206 vga_model = optarg;
3207 default_vga = 0;
3208 break;
3209 case QEMU_OPTION_g:
3210 {
3211 const char *p;
3212 int w, h, depth;
3213 p = optarg;
3214 w = strtol(p, (char **)&p, 10);
3215 if (w <= 0) {
3216 graphic_error:
3217 error_report("invalid resolution or depth");
3218 exit(1);
3219 }
3220 if (*p != 'x')
3221 goto graphic_error;
3222 p++;
3223 h = strtol(p, (char **)&p, 10);
3224 if (h <= 0)
3225 goto graphic_error;
3226 if (*p == 'x') {
3227 p++;
3228 depth = strtol(p, (char **)&p, 10);
3229 if (depth != 8 && depth != 15 && depth != 16 &&
3230 depth != 24 && depth != 32)
3231 goto graphic_error;
3232 } else if (*p == '\0') {
3233 depth = graphic_depth;
3234 } else {
3235 goto graphic_error;
3236 }
3237
3238 graphic_width = w;
3239 graphic_height = h;
3240 graphic_depth = depth;
3241 }
3242 break;
3243 case QEMU_OPTION_echr:
3244 {
3245 char *r;
3246 term_escape_char = strtol(optarg, &r, 0);
3247 if (r == optarg)
3248 printf("Bad argument to echr\n");
3249 break;
3250 }
3251 case QEMU_OPTION_monitor:
3252 default_monitor = 0;
3253 if (strncmp(optarg, "none", 4)) {
3254 monitor_parse(optarg, "readline", false);
3255 }
3256 break;
3257 case QEMU_OPTION_qmp:
3258 monitor_parse(optarg, "control", false);
3259 default_monitor = 0;
3260 break;
3261 case QEMU_OPTION_qmp_pretty:
3262 monitor_parse(optarg, "control", true);
3263 default_monitor = 0;
3264 break;
3265 case QEMU_OPTION_mon:
3266 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3267 true);
3268 if (!opts) {
3269 exit(1);
3270 }
3271 default_monitor = 0;
3272 break;
3273 case QEMU_OPTION_chardev:
3274 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3275 optarg, true);
3276 if (!opts) {
3277 exit(1);
3278 }
3279 break;
3280 case QEMU_OPTION_fsdev:
3281 olist = qemu_find_opts("fsdev");
3282 if (!olist) {
3283 error_report("fsdev support is disabled");
3284 exit(1);
3285 }
3286 opts = qemu_opts_parse_noisily(olist, optarg, true);
3287 if (!opts) {
3288 exit(1);
3289 }
3290 break;
3291 case QEMU_OPTION_virtfs: {
3292 QemuOpts *fsdev;
3293 QemuOpts *device;
3294 const char *writeout, *sock_fd, *socket, *path, *security_model,
3295 *multidevs;
3296
3297 olist = qemu_find_opts("virtfs");
3298 if (!olist) {
3299 error_report("virtfs support is disabled");
3300 exit(1);
3301 }
3302 opts = qemu_opts_parse_noisily(olist, optarg, true);
3303 if (!opts) {
3304 exit(1);
3305 }
3306
3307 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3308 qemu_opt_get(opts, "mount_tag") == NULL) {
3309 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3310 exit(1);
3311 }
3312 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3313 qemu_opts_id(opts) ?:
3314 qemu_opt_get(opts, "mount_tag"),
3315 1, NULL);
3316 if (!fsdev) {
3317 error_report("duplicate or invalid fsdev id: %s",
3318 qemu_opt_get(opts, "mount_tag"));
3319 exit(1);
3320 }
3321
3322 writeout = qemu_opt_get(opts, "writeout");
3323 if (writeout) {
3324 #ifdef CONFIG_SYNC_FILE_RANGE
3325 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3326 #else
3327 error_report("writeout=immediate not supported "
3328 "on this platform");
3329 exit(1);
3330 #endif
3331 }
3332 qemu_opt_set(fsdev, "fsdriver",
3333 qemu_opt_get(opts, "fsdriver"), &error_abort);
3334 path = qemu_opt_get(opts, "path");
3335 if (path) {
3336 qemu_opt_set(fsdev, "path", path, &error_abort);
3337 }
3338 security_model = qemu_opt_get(opts, "security_model");
3339 if (security_model) {
3340 qemu_opt_set(fsdev, "security_model", security_model,
3341 &error_abort);
3342 }
3343 socket = qemu_opt_get(opts, "socket");
3344 if (socket) {
3345 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3346 }
3347 sock_fd = qemu_opt_get(opts, "sock_fd");
3348 if (sock_fd) {
3349 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3350 }
3351
3352 qemu_opt_set_bool(fsdev, "readonly",
3353 qemu_opt_get_bool(opts, "readonly", 0),
3354 &error_abort);
3355 multidevs = qemu_opt_get(opts, "multidevs");
3356 if (multidevs) {
3357 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3358 }
3359 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3360 &error_abort);
3361 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3362 qemu_opt_set(device, "fsdev",
3363 qemu_opts_id(fsdev), &error_abort);
3364 qemu_opt_set(device, "mount_tag",
3365 qemu_opt_get(opts, "mount_tag"), &error_abort);
3366 break;
3367 }
3368 case QEMU_OPTION_virtfs_synth: {
3369 QemuOpts *fsdev;
3370 QemuOpts *device;
3371
3372 warn_report("'-virtfs_synth' is deprecated, please use "
3373 "'-fsdev synth' and '-device virtio-9p-...' "
3374 "instead");
3375
3376 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3377 1, NULL);
3378 if (!fsdev) {
3379 error_report("duplicate option: %s", "virtfs_synth");
3380 exit(1);
3381 }
3382 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3383
3384 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3385 &error_abort);
3386 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3387 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3388 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3389 break;
3390 }
3391 case QEMU_OPTION_serial:
3392 add_device_config(DEV_SERIAL, optarg);
3393 default_serial = 0;
3394 if (strncmp(optarg, "mon:", 4) == 0) {
3395 default_monitor = 0;
3396 }
3397 break;
3398 case QEMU_OPTION_watchdog:
3399 if (watchdog) {
3400 error_report("only one watchdog option may be given");
3401 return 1;
3402 }
3403 watchdog = optarg;
3404 break;
3405 case QEMU_OPTION_watchdog_action:
3406 if (select_watchdog_action(optarg) == -1) {
3407 error_report("unknown -watchdog-action parameter");
3408 exit(1);
3409 }
3410 break;
3411 case QEMU_OPTION_parallel:
3412 add_device_config(DEV_PARALLEL, optarg);
3413 default_parallel = 0;
3414 if (strncmp(optarg, "mon:", 4) == 0) {
3415 default_monitor = 0;
3416 }
3417 break;
3418 case QEMU_OPTION_debugcon:
3419 add_device_config(DEV_DEBUGCON, optarg);
3420 break;
3421 case QEMU_OPTION_loadvm:
3422 loadvm = optarg;
3423 break;
3424 case QEMU_OPTION_full_screen:
3425 dpy.has_full_screen = true;
3426 dpy.full_screen = true;
3427 break;
3428 case QEMU_OPTION_alt_grab:
3429 alt_grab = 1;
3430 break;
3431 case QEMU_OPTION_ctrl_grab:
3432 ctrl_grab = 1;
3433 break;
3434 case QEMU_OPTION_no_quit:
3435 dpy.has_window_close = true;
3436 dpy.window_close = false;
3437 break;
3438 case QEMU_OPTION_sdl:
3439 #ifdef CONFIG_SDL
3440 dpy.type = DISPLAY_TYPE_SDL;
3441 break;
3442 #else
3443 error_report("SDL support is disabled");
3444 exit(1);
3445 #endif
3446 case QEMU_OPTION_pidfile:
3447 pid_file = optarg;
3448 break;
3449 case QEMU_OPTION_win2k_hack:
3450 win2k_install_hack = 1;
3451 break;
3452 case QEMU_OPTION_acpitable:
3453 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3454 optarg, true);
3455 if (!opts) {
3456 exit(1);
3457 }
3458 acpi_table_add(opts, &error_fatal);
3459 break;
3460 case QEMU_OPTION_smbios:
3461 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3462 optarg, false);
3463 if (!opts) {
3464 exit(1);
3465 }
3466 smbios_entry_add(opts, &error_fatal);
3467 break;
3468 case QEMU_OPTION_fwcfg:
3469 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3470 optarg, true);
3471 if (opts == NULL) {
3472 exit(1);
3473 }
3474 break;
3475 case QEMU_OPTION_preconfig:
3476 preconfig_exit_requested = false;
3477 break;
3478 case QEMU_OPTION_enable_kvm:
3479 olist = qemu_find_opts("machine");
3480 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3481 break;
3482 case QEMU_OPTION_M:
3483 case QEMU_OPTION_machine:
3484 olist = qemu_find_opts("machine");
3485 opts = qemu_opts_parse_noisily(olist, optarg, true);
3486 if (!opts) {
3487 exit(1);
3488 }
3489 break;
3490 case QEMU_OPTION_no_kvm:
3491 olist = qemu_find_opts("machine");
3492 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3493 break;
3494 case QEMU_OPTION_accel:
3495 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3496 optarg, true);
3497 optarg = qemu_opt_get(accel_opts, "accel");
3498 if (!optarg || is_help_option(optarg)) {
3499 printf("Accelerators supported in QEMU binary:\n");
3500 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3501 false);
3502 for (el = accel_list; el; el = el->next) {
3503 gchar *typename = g_strdup(object_class_get_name(
3504 OBJECT_CLASS(el->data)));
3505 /* omit qtest which is used for tests only */
3506 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3507 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3508 gchar **optname = g_strsplit(typename,
3509 ACCEL_CLASS_SUFFIX, 0);
3510 printf("%s\n", optname[0]);
3511 g_free(optname);
3512 }
3513 g_free(typename);
3514 }
3515 g_slist_free(accel_list);
3516 exit(0);
3517 }
3518 if (optarg && strchr(optarg, ':')) {
3519 error_report("Don't use ':' with -accel, "
3520 "use -M accel=... for now instead");
3521 exit(1);
3522 }
3523 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3524 false, &error_abort);
3525 qemu_opt_set(opts, "accel", optarg, &error_abort);
3526 break;
3527 case QEMU_OPTION_usb:
3528 olist = qemu_find_opts("machine");
3529 qemu_opts_parse_noisily(olist, "usb=on", false);
3530 break;
3531 case QEMU_OPTION_usbdevice:
3532 error_report("'-usbdevice' is deprecated, please use "
3533 "'-device usb-...' instead");
3534 olist = qemu_find_opts("machine");
3535 qemu_opts_parse_noisily(olist, "usb=on", false);
3536 add_device_config(DEV_USB, optarg);
3537 break;
3538 case QEMU_OPTION_device:
3539 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3540 optarg, true)) {
3541 exit(1);
3542 }
3543 break;
3544 case QEMU_OPTION_smp:
3545 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3546 optarg, true)) {
3547 exit(1);
3548 }
3549 break;
3550 case QEMU_OPTION_vnc:
3551 vnc_parse(optarg, &error_fatal);
3552 break;
3553 case QEMU_OPTION_no_acpi:
3554 acpi_enabled = 0;
3555 break;
3556 case QEMU_OPTION_no_hpet:
3557 no_hpet = 1;
3558 break;
3559 case QEMU_OPTION_no_reboot:
3560 no_reboot = 1;
3561 break;
3562 case QEMU_OPTION_no_shutdown:
3563 no_shutdown = 1;
3564 break;
3565 case QEMU_OPTION_show_cursor:
3566 cursor_hide = 0;
3567 break;
3568 case QEMU_OPTION_uuid:
3569 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3570 error_report("failed to parse UUID string: wrong format");
3571 exit(1);
3572 }
3573 qemu_uuid_set = true;
3574 break;
3575 case QEMU_OPTION_option_rom:
3576 if (nb_option_roms >= MAX_OPTION_ROMS) {
3577 error_report("too many option ROMs");
3578 exit(1);
3579 }
3580 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3581 optarg, true);
3582 if (!opts) {
3583 exit(1);
3584 }
3585 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3586 option_rom[nb_option_roms].bootindex =
3587 qemu_opt_get_number(opts, "bootindex", -1);
3588 if (!option_rom[nb_option_roms].name) {
3589 error_report("Option ROM file is not specified");
3590 exit(1);
3591 }
3592 nb_option_roms++;
3593 break;
3594 case QEMU_OPTION_semihosting:
3595 qemu_semihosting_enable();
3596 break;
3597 case QEMU_OPTION_semihosting_config:
3598 if (qemu_semihosting_config_options(optarg) != 0) {
3599 exit(1);
3600 }
3601 break;
3602 case QEMU_OPTION_name:
3603 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3604 optarg, true);
3605 if (!opts) {
3606 exit(1);
3607 }
3608 break;
3609 case QEMU_OPTION_prom_env:
3610 if (nb_prom_envs >= MAX_PROM_ENVS) {
3611 error_report("too many prom variables");
3612 exit(1);
3613 }
3614 prom_envs[nb_prom_envs] = optarg;
3615 nb_prom_envs++;
3616 break;
3617 case QEMU_OPTION_old_param:
3618 old_param = 1;
3619 break;
3620 case QEMU_OPTION_rtc:
3621 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3622 false);
3623 if (!opts) {
3624 exit(1);
3625 }
3626 break;
3627 case QEMU_OPTION_tb_size:
3628 #ifndef CONFIG_TCG
3629 error_report("TCG is disabled");
3630 exit(1);
3631 #endif
3632 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3633 error_report("Invalid argument to -tb-size");
3634 exit(1);
3635 }
3636 break;
3637 case QEMU_OPTION_icount:
3638 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3639 optarg, true);
3640 if (!icount_opts) {
3641 exit(1);
3642 }
3643 break;
3644 case QEMU_OPTION_incoming:
3645 if (!incoming) {
3646 runstate_set(RUN_STATE_INMIGRATE);
3647 }
3648 incoming = optarg;
3649 break;
3650 case QEMU_OPTION_only_migratable:
3651 only_migratable = 1;
3652 break;
3653 case QEMU_OPTION_nodefaults:
3654 has_defaults = 0;
3655 break;
3656 case QEMU_OPTION_xen_domid:
3657 if (!(xen_available())) {
3658 error_report("Option not supported for this target");
3659 exit(1);
3660 }
3661 xen_domid = atoi(optarg);
3662 break;
3663 case QEMU_OPTION_xen_attach:
3664 if (!(xen_available())) {
3665 error_report("Option not supported for this target");
3666 exit(1);
3667 }
3668 xen_mode = XEN_ATTACH;
3669 break;
3670 case QEMU_OPTION_xen_domid_restrict:
3671 if (!(xen_available())) {
3672 error_report("Option not supported for this target");
3673 exit(1);
3674 }
3675 xen_domid_restrict = true;
3676 break;
3677 case QEMU_OPTION_trace:
3678 g_free(trace_file);
3679 trace_file = trace_opt_parse(optarg);
3680 break;
3681 case QEMU_OPTION_readconfig:
3682 {
3683 int ret = qemu_read_config_file(optarg);
3684 if (ret < 0) {
3685 error_report("read config %s: %s", optarg,
3686 strerror(-ret));
3687 exit(1);
3688 }
3689 break;
3690 }
3691 case QEMU_OPTION_spice:
3692 olist = qemu_find_opts("spice");
3693 if (!olist) {
3694 error_report("spice support is disabled");
3695 exit(1);
3696 }
3697 opts = qemu_opts_parse_noisily(olist, optarg, false);
3698 if (!opts) {
3699 exit(1);
3700 }
3701 display_remote++;
3702 break;
3703 case QEMU_OPTION_writeconfig:
3704 {
3705 FILE *fp;
3706 if (strcmp(optarg, "-") == 0) {
3707 fp = stdout;
3708 } else {
3709 fp = fopen(optarg, "w");
3710 if (fp == NULL) {
3711 error_report("open %s: %s", optarg,
3712 strerror(errno));
3713 exit(1);
3714 }
3715 }
3716 qemu_config_write(fp);
3717 if (fp != stdout) {
3718 fclose(fp);
3719 }
3720 break;
3721 }
3722 case QEMU_OPTION_qtest:
3723 qtest_chrdev = optarg;
3724 break;
3725 case QEMU_OPTION_qtest_log:
3726 qtest_log = optarg;
3727 break;
3728 case QEMU_OPTION_sandbox:
3729 olist = qemu_find_opts("sandbox");
3730 if (!olist) {
3731 #ifndef CONFIG_SECCOMP
3732 error_report("-sandbox support is not enabled "
3733 "in this QEMU binary");
3734 #endif
3735 exit(1);
3736 }
3737
3738 opts = qemu_opts_parse_noisily(olist, optarg, true);
3739 if (!opts) {
3740 exit(1);
3741 }
3742 break;
3743 case QEMU_OPTION_add_fd:
3744 #ifndef _WIN32
3745 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3746 optarg, false);
3747 if (!opts) {
3748 exit(1);
3749 }
3750 #else
3751 error_report("File descriptor passing is disabled on this "
3752 "platform");
3753 exit(1);
3754 #endif
3755 break;
3756 case QEMU_OPTION_object:
3757 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3758 optarg, true);
3759 if (!opts) {
3760 exit(1);
3761 }
3762 break;
3763 case QEMU_OPTION_realtime:
3764 warn_report("'-realtime mlock=...' is deprecated, please use "
3765 "'-overcommit mem-lock=...' instead");
3766 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3767 optarg, false);
3768 if (!opts) {
3769 exit(1);
3770 }
3771 /* Don't override the -overcommit option if set */
3772 enable_mlock = enable_mlock ||
3773 qemu_opt_get_bool(opts, "mlock", true);
3774 break;
3775 case QEMU_OPTION_overcommit:
3776 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3777 optarg, false);
3778 if (!opts) {
3779 exit(1);
3780 }
3781 /* Don't override the -realtime option if set */
3782 enable_mlock = enable_mlock ||
3783 qemu_opt_get_bool(opts, "mem-lock", false);
3784 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3785 break;
3786 case QEMU_OPTION_msg:
3787 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3788 false);
3789 if (!opts) {
3790 exit(1);
3791 }
3792 configure_msg(opts);
3793 break;
3794 case QEMU_OPTION_dump_vmstate:
3795 if (vmstate_dump_file) {
3796 error_report("only one '-dump-vmstate' "
3797 "option may be given");
3798 exit(1);
3799 }
3800 vmstate_dump_file = fopen(optarg, "w");
3801 if (vmstate_dump_file == NULL) {
3802 error_report("open %s: %s", optarg, strerror(errno));
3803 exit(1);
3804 }
3805 break;
3806 case QEMU_OPTION_enable_sync_profile:
3807 qsp_enable();
3808 break;
3809 case QEMU_OPTION_nouserconfig:
3810 /* Nothing to be parsed here. Especially, do not error out below. */
3811 break;
3812 default:
3813 if (os_parse_cmd_args(popt->index, optarg)) {
3814 error_report("Option not supported in this build");
3815 exit(1);
3816 }
3817 }
3818 }
3819 }
3820 /*
3821 * Clear error location left behind by the loop.
3822 * Best done right after the loop. Do not insert code here!
3823 */
3824 loc_set_none();
3825
3826 user_register_global_props();
3827
3828 replay_configure(icount_opts);
3829
3830 if (incoming && !preconfig_exit_requested) {
3831 error_report("'preconfig' and 'incoming' options are "
3832 "mutually exclusive");
3833 exit(EXIT_FAILURE);
3834 }
3835
3836 configure_rtc(qemu_find_opts_singleton("rtc"));
3837
3838 machine_class = select_machine();
3839 object_set_machine_compat_props(machine_class->compat_props);
3840
3841 set_memory_options(&ram_slots, &maxram_size, machine_class);
3842
3843 os_daemonize();
3844 rcu_disable_atfork();
3845
3846 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3847 error_reportf_err(err, "cannot create PID file: ");
3848 exit(1);
3849 }
3850
3851 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3852 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3853
3854 if (qemu_init_main_loop(&main_loop_err)) {
3855 error_report_err(main_loop_err);
3856 exit(1);
3857 }
3858
3859 #ifdef CONFIG_SECCOMP
3860 olist = qemu_find_opts_err("sandbox", NULL);
3861 if (olist) {
3862 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3863 }
3864 #endif
3865
3866 qemu_opts_foreach(qemu_find_opts("name"),
3867 parse_name, NULL, &error_fatal);
3868
3869 #ifndef _WIN32
3870 qemu_opts_foreach(qemu_find_opts("add-fd"),
3871 parse_add_fd, NULL, &error_fatal);
3872
3873 qemu_opts_foreach(qemu_find_opts("add-fd"),
3874 cleanup_add_fd, NULL, &error_fatal);
3875 #endif
3876
3877 current_machine = MACHINE(object_new(object_class_get_name(
3878 OBJECT_CLASS(machine_class))));
3879 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3880 exit(0);
3881 }
3882 object_property_add_child(object_get_root(), "machine",
3883 OBJECT(current_machine), &error_abort);
3884 object_property_add_child(container_get(OBJECT(current_machine),
3885 "/unattached"),
3886 "sysbus", OBJECT(sysbus_get_default()),
3887 NULL);
3888
3889 if (machine_class->minimum_page_bits) {
3890 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3891 /* This would be a board error: specifying a minimum smaller than
3892 * a target's compile-time fixed setting.
3893 */
3894 g_assert_not_reached();
3895 }
3896 }
3897
3898 cpu_exec_init_all();
3899
3900 if (machine_class->hw_version) {
3901 qemu_set_hw_version(machine_class->hw_version);
3902 }
3903
3904 if (cpu_option && is_help_option(cpu_option)) {
3905 list_cpus(cpu_option);
3906 exit(0);
3907 }
3908
3909 if (!trace_init_backends()) {
3910 exit(1);
3911 }
3912 trace_init_file(trace_file);
3913
3914 /* Open the logfile at this point and set the log mask if necessary.
3915 */
3916 if (log_file) {
3917 qemu_set_log_filename(log_file, &error_fatal);
3918 }
3919
3920 if (log_mask) {
3921 int mask;
3922 mask = qemu_str_to_log_mask(log_mask);
3923 if (!mask) {
3924 qemu_print_log_usage(stdout);
3925 exit(1);
3926 }
3927 qemu_set_log(mask);
3928 } else {
3929 qemu_set_log(0);
3930 }
3931
3932 /* add configured firmware directories */
3933 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3934 for (i = 0; dirs[i] != NULL; i++) {
3935 qemu_add_data_dir(dirs[i]);
3936 }
3937 g_strfreev(dirs);
3938
3939 /* try to find datadir relative to the executable path */
3940 dir = os_find_datadir();
3941 qemu_add_data_dir(dir);
3942 g_free(dir);
3943
3944 /* add the datadir specified when building */
3945 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3946
3947 /* -L help lists the data directories and exits. */
3948 if (list_data_dirs) {
3949 for (i = 0; i < data_dir_idx; i++) {
3950 printf("%s\n", data_dir[i]);
3951 }
3952 exit(0);
3953 }
3954
3955 /* machine_class: default to UP */
3956 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3957 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3958 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3959
3960 /* default to machine_class->default_cpus */
3961 current_machine->smp.cpus = machine_class->default_cpus;
3962 current_machine->smp.max_cpus = machine_class->default_cpus;
3963 current_machine->smp.cores = 1;
3964 current_machine->smp.threads = 1;
3965
3966 machine_class->smp_parse(current_machine,
3967 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3968
3969 /* sanity-check smp_cpus and max_cpus against machine_class */
3970 if (current_machine->smp.cpus < machine_class->min_cpus) {
3971 error_report("Invalid SMP CPUs %d. The min CPUs "
3972 "supported by machine '%s' is %d",
3973 current_machine->smp.cpus,
3974 machine_class->name, machine_class->min_cpus);
3975 exit(1);
3976 }
3977 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3978 error_report("Invalid SMP CPUs %d. The max CPUs "
3979 "supported by machine '%s' is %d",
3980 current_machine->smp.max_cpus,
3981 machine_class->name, machine_class->max_cpus);
3982 exit(1);
3983 }
3984
3985 /*
3986 * Get the default machine options from the machine if it is not already
3987 * specified either by the configuration file or by the command line.
3988 */
3989 if (machine_class->default_machine_opts) {
3990 qemu_opts_set_defaults(qemu_find_opts("machine"),
3991 machine_class->default_machine_opts, 0);
3992 }
3993
3994 qemu_opts_foreach(qemu_find_opts("device"),
3995 default_driver_check, NULL, NULL);
3996 qemu_opts_foreach(qemu_find_opts("global"),
3997 default_driver_check, NULL, NULL);
3998
3999 if (!vga_model && !default_vga) {
4000 vga_interface_type = VGA_DEVICE;
4001 }
4002 if (!has_defaults || machine_class->no_serial) {
4003 default_serial = 0;
4004 }
4005 if (!has_defaults || machine_class->no_parallel) {
4006 default_parallel = 0;
4007 }
4008 if (!has_defaults || machine_class->no_floppy) {
4009 default_floppy = 0;
4010 }
4011 if (!has_defaults || machine_class->no_cdrom) {
4012 default_cdrom = 0;
4013 }
4014 if (!has_defaults || machine_class->no_sdcard) {
4015 default_sdcard = 0;
4016 }
4017 if (!has_defaults) {
4018 default_monitor = 0;
4019 default_net = 0;
4020 default_vga = 0;
4021 }
4022
4023 if (is_daemonized()) {
4024 if (!preconfig_exit_requested) {
4025 error_report("'preconfig' and 'daemonize' options are "
4026 "mutually exclusive");
4027 exit(EXIT_FAILURE);
4028 }
4029
4030 /* According to documentation and historically, -nographic redirects
4031 * serial port, parallel port and monitor to stdio, which does not work
4032 * with -daemonize. We can redirect these to null instead, but since
4033 * -nographic is legacy, let's just error out.
4034 * We disallow -nographic only if all other ports are not redirected
4035 * explicitly, to not break existing legacy setups which uses
4036 * -nographic _and_ redirects all ports explicitly - this is valid
4037 * usage, -nographic is just a no-op in this case.
4038 */
4039 if (nographic
4040 && (default_parallel || default_serial || default_monitor)) {
4041 error_report("-nographic cannot be used with -daemonize");
4042 exit(1);
4043 }
4044 #ifdef CONFIG_CURSES
4045 if (dpy.type == DISPLAY_TYPE_CURSES) {
4046 error_report("curses display cannot be used with -daemonize");
4047 exit(1);
4048 }
4049 #endif
4050 }
4051
4052 if (nographic) {
4053 if (default_parallel)
4054 add_device_config(DEV_PARALLEL, "null");
4055 if (default_serial && default_monitor) {
4056 add_device_config(DEV_SERIAL, "mon:stdio");
4057 } else {
4058 if (default_serial)
4059 add_device_config(DEV_SERIAL, "stdio");
4060 if (default_monitor)
4061 monitor_parse("stdio", "readline", false);
4062 }
4063 } else {
4064 if (default_serial)
4065 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4066 if (default_parallel)
4067 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4068 if (default_monitor)
4069 monitor_parse("vc:80Cx24C", "readline", false);
4070 }
4071
4072 #if defined(CONFIG_VNC)
4073 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4074 display_remote++;
4075 }
4076 #endif
4077 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4078 if (!qemu_display_find_default(&dpy)) {
4079 dpy.type = DISPLAY_TYPE_NONE;
4080 #if defined(CONFIG_VNC)
4081 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4082 #endif
4083 }
4084 }
4085 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4086 dpy.type = DISPLAY_TYPE_NONE;
4087 }
4088
4089 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4090 error_report("-alt-grab and -ctrl-grab are only valid "
4091 "for SDL, ignoring option");
4092 }
4093 if (dpy.has_window_close &&
4094 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4095 error_report("-no-quit is only valid for GTK and SDL, "
4096 "ignoring option");
4097 }
4098
4099 qemu_display_early_init(&dpy);
4100 qemu_console_early_init();
4101
4102 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4103 #if defined(CONFIG_OPENGL)
4104 error_report("OpenGL is not supported by the display");
4105 #else
4106 error_report("OpenGL support is disabled");
4107 #endif
4108 exit(1);
4109 }
4110
4111 page_size_init();
4112 socket_init();
4113
4114 qemu_opts_foreach(qemu_find_opts("object"),
4115 user_creatable_add_opts_foreach,
4116 object_create_initial, &error_fatal);
4117
4118 qemu_opts_foreach(qemu_find_opts("chardev"),
4119 chardev_init_func, NULL, &error_fatal);
4120 /* now chardevs have been created we may have semihosting to connect */
4121 qemu_semihosting_connect_chardevs();
4122
4123 #ifdef CONFIG_VIRTFS
4124 qemu_opts_foreach(qemu_find_opts("fsdev"),
4125 fsdev_init_func, NULL, &error_fatal);
4126 #endif
4127
4128 if (qemu_opts_foreach(qemu_find_opts("device"),
4129 device_help_func, NULL, NULL)) {
4130 exit(0);
4131 }
4132
4133 /*
4134 * Note: we need to create block backends before
4135 * machine_set_property(), so machine properties can refer to
4136 * them.
4137 */
4138 configure_blockdev(&bdo_queue, machine_class, snapshot);
4139
4140 machine_opts = qemu_get_machine_opts();
4141 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4142 &error_fatal);
4143 current_machine->ram_size = ram_size;
4144 current_machine->maxram_size = maxram_size;
4145 current_machine->ram_slots = ram_slots;
4146
4147 /*
4148 * Note: uses machine properties such as kernel-irqchip, must run
4149 * after machine_set_property().
4150 */
4151 configure_accelerator(current_machine, argv[0]);
4152
4153 /*
4154 * Beware, QOM objects created before this point miss global and
4155 * compat properties.
4156 *
4157 * Global properties get set up by qdev_prop_register_global(),
4158 * called from user_register_global_props(), and certain option
4159 * desugaring. Also in CPU feature desugaring (buried in
4160 * parse_cpu_option()), which happens below this point, but may
4161 * only target the CPU type, which can only be created after
4162 * parse_cpu_option() returned the type.
4163 *
4164 * Machine compat properties: object_set_machine_compat_props().
4165 * Accelerator compat props: object_set_accelerator_compat_props(),
4166 * called from configure_accelerator().
4167 */
4168
4169 if (!qtest_enabled() && machine_class->deprecation_reason) {
4170 error_report("Machine type '%s' is deprecated: %s",
4171 machine_class->name, machine_class->deprecation_reason);
4172 }
4173
4174 /*
4175 * Note: creates a QOM object, must run only after global and
4176 * compat properties have been set up.
4177 */
4178 migration_object_init();
4179
4180 if (qtest_chrdev) {
4181 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4182 }
4183
4184 machine_opts = qemu_get_machine_opts();
4185 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4186 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4187 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4188 bios_name = qemu_opt_get(machine_opts, "firmware");
4189
4190 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4191 if (opts) {
4192 boot_order = qemu_opt_get(opts, "order");
4193 if (boot_order) {
4194 validate_bootdevices(boot_order, &error_fatal);
4195 }
4196
4197 boot_once = qemu_opt_get(opts, "once");
4198 if (boot_once) {
4199 validate_bootdevices(boot_once, &error_fatal);
4200 }
4201
4202 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4203 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4204 }
4205
4206 if (!boot_order) {
4207 boot_order = machine_class->default_boot_order;
4208 }
4209
4210 if (!kernel_cmdline) {
4211 kernel_cmdline = "";
4212 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4213 }
4214
4215 linux_boot = (kernel_filename != NULL);
4216
4217 if (!linux_boot && *kernel_cmdline != '\0') {
4218 error_report("-append only allowed with -kernel option");
4219 exit(1);
4220 }
4221
4222 if (!linux_boot && initrd_filename != NULL) {
4223 error_report("-initrd only allowed with -kernel option");
4224 exit(1);
4225 }
4226
4227 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4228 /* fall back to the -kernel/-append */
4229 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4230 }
4231
4232 /* spice needs the timers to be initialized by this point */
4233 qemu_spice_init();
4234
4235 cpu_ticks_init();
4236 if (icount_opts) {
4237 if (!tcg_enabled()) {
4238 error_report("-icount is not allowed with hardware virtualization");
4239 exit(1);
4240 }
4241 configure_icount(icount_opts, &error_abort);
4242 qemu_opts_del(icount_opts);
4243 }
4244
4245 if (tcg_enabled()) {
4246 qemu_tcg_configure(accel_opts, &error_fatal);
4247 }
4248
4249 if (default_net) {
4250 QemuOptsList *net = qemu_find_opts("net");
4251 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4252 #ifdef CONFIG_SLIRP
4253 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4254 #endif
4255 }
4256
4257 if (net_init_clients(&err) < 0) {
4258 error_report_err(err);
4259 exit(1);
4260 }
4261
4262 qemu_opts_foreach(qemu_find_opts("object"),
4263 user_creatable_add_opts_foreach,
4264 object_create_delayed, &error_fatal);
4265
4266 tpm_init();
4267
4268 /* init the bluetooth world */
4269 if (foreach_device_config(DEV_BT, bt_parse))
4270 exit(1);
4271
4272 if (!xen_enabled()) {
4273 /* On 32-bit hosts, QEMU is limited by virtual address space */
4274 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4275 error_report("at most 2047 MB RAM can be simulated");
4276 exit(1);
4277 }
4278 }
4279
4280 blk_mig_init();
4281 ram_mig_init();
4282 dirty_bitmap_mig_init();
4283
4284 qemu_opts_foreach(qemu_find_opts("mon"),
4285 mon_init_func, NULL, &error_fatal);
4286
4287 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4288 exit(1);
4289 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4290 exit(1);
4291 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4292 exit(1);
4293
4294 /* If no default VGA is requested, the default is "none". */
4295 if (default_vga) {
4296 vga_model = get_default_vga_model(machine_class);
4297 }
4298 if (vga_model) {
4299 select_vgahw(machine_class, vga_model);
4300 }
4301
4302 if (watchdog) {
4303 i = select_watchdog(watchdog);
4304 if (i > 0)
4305 exit (i == 1 ? 1 : 0);
4306 }
4307
4308 /* This checkpoint is required by replay to separate prior clock
4309 reading from the other reads, because timer polling functions query
4310 clock values from the log. */
4311 replay_checkpoint(CHECKPOINT_INIT);
4312 qdev_machine_init();
4313
4314 current_machine->boot_order = boot_order;
4315
4316 /* parse features once if machine provides default cpu_type */
4317 current_machine->cpu_type = machine_class->default_cpu_type;
4318 if (cpu_option) {
4319 current_machine->cpu_type = parse_cpu_option(cpu_option);
4320 }
4321 parse_numa_opts(current_machine);
4322
4323 /* do monitor/qmp handling at preconfig state if requested */
4324 main_loop();
4325
4326 audio_init_audiodevs();
4327
4328 /* from here on runstate is RUN_STATE_PRELAUNCH */
4329 machine_run_board_init(current_machine);
4330
4331 realtime_init();
4332
4333 soundhw_init();
4334
4335 if (hax_enabled()) {
4336 hax_sync_vcpus();
4337 }
4338
4339 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4340 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4341
4342 /* init USB devices */
4343 if (machine_usb(current_machine)) {
4344 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4345 exit(1);
4346 }
4347
4348 /* Check if IGD GFX passthrough. */
4349 igd_gfx_passthru();
4350
4351 /* init generic devices */
4352 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4353 qemu_opts_foreach(qemu_find_opts("device"),
4354 device_init_func, NULL, &error_fatal);
4355
4356 cpu_synchronize_all_post_init();
4357
4358 rom_reset_order_override();
4359
4360 /* Did we create any drives that we failed to create a device for? */
4361 drive_check_orphaned();
4362
4363 /* Don't warn about the default network setup that you get if
4364 * no command line -net or -netdev options are specified. There
4365 * are two cases that we would otherwise complain about:
4366 * (1) board doesn't support a NIC but the implicit "-net nic"
4367 * requested one
4368 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4369 * sets up a nic that isn't connected to anything.
4370 */
4371 if (!default_net && (!qtest_enabled() || has_defaults)) {
4372 net_check_clients();
4373 }
4374
4375 if (boot_once) {
4376 qemu_boot_set(boot_once, &error_fatal);
4377 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4378 }
4379
4380 /* init local displays */
4381 ds = init_displaystate();
4382 qemu_display_init(ds, &dpy);
4383
4384 /* must be after terminal init, SDL library changes signal handlers */
4385 os_setup_signal_handling();
4386
4387 /* init remote displays */
4388 #ifdef CONFIG_VNC
4389 qemu_opts_foreach(qemu_find_opts("vnc"),
4390 vnc_init_func, NULL, &error_fatal);
4391 #endif
4392
4393 if (using_spice) {
4394 qemu_spice_display_init();
4395 }
4396
4397 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4398 exit(1);
4399 }
4400
4401 qdev_machine_creation_done();
4402
4403 /* TODO: once all bus devices are qdevified, this should be done
4404 * when bus is created by qdev.c */
4405 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4406 qemu_run_machine_init_done_notifiers();
4407
4408 if (rom_check_and_register_reset() != 0) {
4409 error_report("rom check and register reset failed");
4410 exit(1);
4411 }
4412
4413 replay_start();
4414
4415 /* This checkpoint is required by replay to separate prior clock
4416 reading from the other reads, because timer polling functions query
4417 clock values from the log. */
4418 replay_checkpoint(CHECKPOINT_RESET);
4419 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4420 register_global_state();
4421 if (loadvm) {
4422 Error *local_err = NULL;
4423 if (load_snapshot(loadvm, &local_err) < 0) {
4424 error_report_err(local_err);
4425 autostart = 0;
4426 exit(1);
4427 }
4428 }
4429 if (replay_mode != REPLAY_MODE_NONE) {
4430 replay_vmstate_init();
4431 }
4432
4433 qdev_prop_check_globals();
4434 if (vmstate_dump_file) {
4435 /* dump and exit */
4436 dump_vmstate_json_to_file(vmstate_dump_file);
4437 return 0;
4438 }
4439
4440 if (incoming) {
4441 Error *local_err = NULL;
4442 qemu_start_incoming_migration(incoming, &local_err);
4443 if (local_err) {
4444 error_reportf_err(local_err, "-incoming %s: ", incoming);
4445 exit(1);
4446 }
4447 } else if (autostart) {
4448 vm_start();
4449 }
4450
4451 accel_setup_post(current_machine);
4452 os_setup_post();
4453
4454 main_loop();
4455
4456 gdbserver_cleanup();
4457
4458 /*
4459 * cleaning up the migration object cancels any existing migration
4460 * try to do this early so that it also stops using devices.
4461 */
4462 migration_shutdown();
4463
4464 /*
4465 * We must cancel all block jobs while the block layer is drained,
4466 * or cancelling will be affected by throttling and thus may block
4467 * for an extended period of time.
4468 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4469 * it in the drained section.
4470 * We do not need to end this section, because we do not want any
4471 * requests happening from here on anyway.
4472 */
4473 bdrv_drain_all_begin();
4474
4475 /* No more vcpu or device emulation activity beyond this point */
4476 vm_shutdown();
4477 replay_finish();
4478
4479 job_cancel_sync_all();
4480 bdrv_close_all();
4481
4482 res_free();
4483
4484 /* vhost-user must be cleaned up before chardevs. */
4485 tpm_cleanup();
4486 net_cleanup();
4487 audio_cleanup();
4488 monitor_cleanup();
4489 qemu_chr_cleanup();
4490 user_creatable_cleanup();
4491 /* TODO: unref root container, check all devices are ok */
4492
4493 return 0;
4494 }
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