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virtiofsd: Handle hard reboot
[qemu/kevin.git] / vl.c
blob4c5033842cdd9fdab8c02f123fa8e03cbac9e750
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 "sysemu/watchdog.h"
66 #include "hw/firmware/smbios.h"
67 #include "hw/acpi/acpi.h"
68 #include "hw/xen/xen.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "net/net.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
75 #include "ui/input.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
82 #include "qemu/log.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
102 #ifdef CONFIG_VIRTFS
103 #include "fsdev/qemu-fsdev.h"
104 #endif
105 #include "sysemu/qtest.h"
106
107 #include "disas/disas.h"
108
109 #include "trace-root.h"
110 #include "trace/control.h"
111 #include "qemu/plugin.h"
112 #include "qemu/queue.h"
113 #include "sysemu/arch_init.h"
114
115 #include "ui/qemu-spice.h"
116 #include "qapi/string-input-visitor.h"
117 #include "qapi/opts-visitor.h"
118 #include "qapi/clone-visitor.h"
119 #include "qom/object_interfaces.h"
120 #include "hw/semihosting/semihost.h"
121 #include "crypto/init.h"
122 #include "sysemu/replay.h"
123 #include "qapi/qapi-events-run-state.h"
124 #include "qapi/qapi-visit-block-core.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
132
133 #define MAX_VIRTIO_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int display_opengl;
140 const char* keyboard_layout = NULL;
141 ram_addr_t ram_size;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 bool enable_cpu_pm = false;
146 int nb_nics;
147 NICInfo nd_table[MAX_NICS];
148 int autostart;
149 static enum {
150 RTC_BASE_UTC,
151 RTC_BASE_LOCALTIME,
152 RTC_BASE_DATETIME,
153 } rtc_base_type = RTC_BASE_UTC;
154 static time_t rtc_ref_start_datetime;
155 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
156 static int rtc_host_datetime_offset = -1; /* valid & used only with
157 RTC_BASE_DATETIME */
158 QEMUClockType rtc_clock;
159 int vga_interface_type = VGA_NONE;
160 static DisplayOptions dpy;
161 static int num_serial_hds;
162 static Chardev **serial_hds;
163 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
164 int win2k_install_hack = 0;
165 int singlestep = 0;
166 int acpi_enabled = 1;
167 int no_hpet = 0;
168 int fd_bootchk = 1;
169 static int no_reboot;
170 int no_shutdown = 0;
171 int cursor_hide = 1;
172 int graphic_rotate = 0;
173 const char *watchdog;
174 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
175 int nb_option_roms;
176 int old_param = 0;
177 const char *qemu_name;
178 int alt_grab = 0;
179 int ctrl_grab = 0;
180 unsigned int nb_prom_envs = 0;
181 const char *prom_envs[MAX_PROM_ENVS];
182 int boot_menu;
183 bool boot_strict;
184 uint8_t *boot_splash_filedata;
185 int only_migratable; /* turn it off unless user states otherwise */
186 bool wakeup_suspend_enabled;
187
188 int icount_align_option;
189
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
192 */
193 QemuUUID qemu_uuid;
194 bool qemu_uuid_set;
195
196 static NotifierList exit_notifiers =
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
198
199 static NotifierList machine_init_done_notifiers =
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
201
202 bool xen_allowed;
203 uint32_t xen_domid;
204 enum xen_mode xen_mode = XEN_EMULATE;
205 bool xen_domid_restrict;
206
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_monitor = 1;
211 static int default_floppy = 1;
212 static int default_cdrom = 1;
213 static int default_sdcard = 1;
214 static int default_vga = 1;
215 static int default_net = 1;
216
217 static struct {
218 const char *driver;
219 int *flag;
220 } default_list[] = {
221 { .driver = "isa-serial", .flag = &default_serial },
222 { .driver = "isa-parallel", .flag = &default_parallel },
223 { .driver = "isa-fdc", .flag = &default_floppy },
224 { .driver = "floppy", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .flag = &default_cdrom },
229 { .driver = "scsi-hd", .flag = &default_cdrom },
230 { .driver = "VGA", .flag = &default_vga },
231 { .driver = "isa-vga", .flag = &default_vga },
232 { .driver = "cirrus-vga", .flag = &default_vga },
233 { .driver = "isa-cirrus-vga", .flag = &default_vga },
234 { .driver = "vmware-svga", .flag = &default_vga },
235 { .driver = "qxl-vga", .flag = &default_vga },
236 { .driver = "virtio-vga", .flag = &default_vga },
237 { .driver = "ati-vga", .flag = &default_vga },
238 { .driver = "vhost-user-vga", .flag = &default_vga },
239 };
240
241 static QemuOptsList qemu_rtc_opts = {
242 .name = "rtc",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
244 .merge_lists = true,
245 .desc = {
246 {
247 .name = "base",
248 .type = QEMU_OPT_STRING,
249 },{
250 .name = "clock",
251 .type = QEMU_OPT_STRING,
252 },{
253 .name = "driftfix",
254 .type = QEMU_OPT_STRING,
255 },
256 { /* end of list */ }
257 },
258 };
259
260 static QemuOptsList qemu_option_rom_opts = {
261 .name = "option-rom",
262 .implied_opt_name = "romfile",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
264 .desc = {
265 {
266 .name = "bootindex",
267 .type = QEMU_OPT_NUMBER,
268 }, {
269 .name = "romfile",
270 .type = QEMU_OPT_STRING,
271 },
272 { /* end of list */ }
273 },
274 };
275
276 static QemuOptsList qemu_machine_opts = {
277 .name = "machine",
278 .implied_opt_name = "type",
279 .merge_lists = true,
280 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
281 .desc = {
282 /*
283 * no elements => accept any
284 * sanity checking will happen later
285 * when setting machine properties
286 */
287 { }
288 },
289 };
290
291 static QemuOptsList qemu_accel_opts = {
292 .name = "accel",
293 .implied_opt_name = "accel",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
295 .desc = {
296 /*
297 * no elements => accept any
298 * sanity checking will happen later
299 * when setting accelerator properties
300 */
301 { }
302 },
303 };
304
305 static QemuOptsList qemu_boot_opts = {
306 .name = "boot-opts",
307 .implied_opt_name = "order",
308 .merge_lists = true,
309 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
310 .desc = {
311 {
312 .name = "order",
313 .type = QEMU_OPT_STRING,
314 }, {
315 .name = "once",
316 .type = QEMU_OPT_STRING,
317 }, {
318 .name = "menu",
319 .type = QEMU_OPT_BOOL,
320 }, {
321 .name = "splash",
322 .type = QEMU_OPT_STRING,
323 }, {
324 .name = "splash-time",
325 .type = QEMU_OPT_NUMBER,
326 }, {
327 .name = "reboot-timeout",
328 .type = QEMU_OPT_NUMBER,
329 }, {
330 .name = "strict",
331 .type = QEMU_OPT_BOOL,
332 },
333 { /*End of list */ }
334 },
335 };
336
337 static QemuOptsList qemu_add_fd_opts = {
338 .name = "add-fd",
339 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
340 .desc = {
341 {
342 .name = "fd",
343 .type = QEMU_OPT_NUMBER,
344 .help = "file descriptor of which a duplicate is added to fd set",
345 },{
346 .name = "set",
347 .type = QEMU_OPT_NUMBER,
348 .help = "ID of the fd set to add fd to",
349 },{
350 .name = "opaque",
351 .type = QEMU_OPT_STRING,
352 .help = "free-form string used to describe fd",
353 },
354 { /* end of list */ }
355 },
356 };
357
358 static QemuOptsList qemu_object_opts = {
359 .name = "object",
360 .implied_opt_name = "qom-type",
361 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
362 .desc = {
363 { }
364 },
365 };
366
367 static QemuOptsList qemu_tpmdev_opts = {
368 .name = "tpmdev",
369 .implied_opt_name = "type",
370 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
371 .desc = {
372 /* options are defined in the TPM backends */
373 { /* end of list */ }
374 },
375 };
376
377 static QemuOptsList qemu_realtime_opts = {
378 .name = "realtime",
379 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
380 .desc = {
381 {
382 .name = "mlock",
383 .type = QEMU_OPT_BOOL,
384 },
385 { /* end of list */ }
386 },
387 };
388
389 static QemuOptsList qemu_overcommit_opts = {
390 .name = "overcommit",
391 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
392 .desc = {
393 {
394 .name = "mem-lock",
395 .type = QEMU_OPT_BOOL,
396 },
397 {
398 .name = "cpu-pm",
399 .type = QEMU_OPT_BOOL,
400 },
401 { /* end of list */ }
402 },
403 };
404
405 static QemuOptsList qemu_msg_opts = {
406 .name = "msg",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
408 .desc = {
409 {
410 .name = "timestamp",
411 .type = QEMU_OPT_BOOL,
412 },
413 { /* end of list */ }
414 },
415 };
416
417 static QemuOptsList qemu_name_opts = {
418 .name = "name",
419 .implied_opt_name = "guest",
420 .merge_lists = true,
421 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
422 .desc = {
423 {
424 .name = "guest",
425 .type = QEMU_OPT_STRING,
426 .help = "Sets the name of the guest.\n"
427 "This name will be displayed in the SDL window caption.\n"
428 "The name will also be used for the VNC server",
429 }, {
430 .name = "process",
431 .type = QEMU_OPT_STRING,
432 .help = "Sets the name of the QEMU process, as shown in top etc",
433 }, {
434 .name = "debug-threads",
435 .type = QEMU_OPT_BOOL,
436 .help = "When enabled, name the individual threads; defaults off.\n"
437 "NOTE: The thread names are for debugging and not a\n"
438 "stable API.",
439 },
440 { /* End of list */ }
441 },
442 };
443
444 static QemuOptsList qemu_mem_opts = {
445 .name = "memory",
446 .implied_opt_name = "size",
447 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
448 .merge_lists = true,
449 .desc = {
450 {
451 .name = "size",
452 .type = QEMU_OPT_SIZE,
453 },
454 {
455 .name = "slots",
456 .type = QEMU_OPT_NUMBER,
457 },
458 {
459 .name = "maxmem",
460 .type = QEMU_OPT_SIZE,
461 },
462 { /* end of list */ }
463 },
464 };
465
466 static QemuOptsList qemu_icount_opts = {
467 .name = "icount",
468 .implied_opt_name = "shift",
469 .merge_lists = true,
470 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
471 .desc = {
472 {
473 .name = "shift",
474 .type = QEMU_OPT_STRING,
475 }, {
476 .name = "align",
477 .type = QEMU_OPT_BOOL,
478 }, {
479 .name = "sleep",
480 .type = QEMU_OPT_BOOL,
481 }, {
482 .name = "rr",
483 .type = QEMU_OPT_STRING,
484 }, {
485 .name = "rrfile",
486 .type = QEMU_OPT_STRING,
487 }, {
488 .name = "rrsnapshot",
489 .type = QEMU_OPT_STRING,
490 },
491 { /* end of list */ }
492 },
493 };
494
495 static QemuOptsList qemu_fw_cfg_opts = {
496 .name = "fw_cfg",
497 .implied_opt_name = "name",
498 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
499 .desc = {
500 {
501 .name = "name",
502 .type = QEMU_OPT_STRING,
503 .help = "Sets the fw_cfg name of the blob to be inserted",
504 }, {
505 .name = "file",
506 .type = QEMU_OPT_STRING,
507 .help = "Sets the name of the file from which "
508 "the fw_cfg blob will be loaded",
509 }, {
510 .name = "string",
511 .type = QEMU_OPT_STRING,
512 .help = "Sets content of the blob to be inserted from a string",
513 },
514 { /* end of list */ }
515 },
516 };
517
518 /**
519 * Get machine options
520 *
521 * Returns: machine options (never null).
522 */
523 QemuOpts *qemu_get_machine_opts(void)
524 {
525 return qemu_find_opts_singleton("machine");
526 }
527
528 const char *qemu_get_vm_name(void)
529 {
530 return qemu_name;
531 }
532
533 static void res_free(void)
534 {
535 g_free(boot_splash_filedata);
536 boot_splash_filedata = NULL;
537 }
538
539 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
540 {
541 const char *driver = qemu_opt_get(opts, "driver");
542 int i;
543
544 if (!driver)
545 return 0;
546 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
547 if (strcmp(default_list[i].driver, driver) != 0)
548 continue;
549 *(default_list[i].flag) = 0;
550 }
551 return 0;
552 }
553
554 /***********************************************************/
555 /* QEMU state */
556
557 static RunState current_run_state = RUN_STATE_PRECONFIG;
558
559 /* We use RUN_STATE__MAX but any invalid value will do */
560 static RunState vmstop_requested = RUN_STATE__MAX;
561 static QemuMutex vmstop_lock;
562
563 typedef struct {
564 RunState from;
565 RunState to;
566 } RunStateTransition;
567
568 static const RunStateTransition runstate_transitions_def[] = {
569 /* from -> to */
570 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
571 /* Early switch to inmigrate state to allow -incoming CLI option work
572 * as it used to. TODO: delay actual switching to inmigrate state to
573 * the point after machine is built and remove this hack.
574 */
575 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
576
577 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
578 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
579 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
580
581 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
582 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
583 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
584 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
585 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
586 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
587 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
588 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
589 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
590 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
591 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
592 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
593
594 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
595 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
596 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
597
598 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
599 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
600 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
601
602 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
603 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
604 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
605 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
606 { RUN_STATE_PAUSED, RUN_STATE_COLO},
607
608 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
609 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
610 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
611
612 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
613 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
614 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
615
616 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
617 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
618 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
619 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
620 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
621
622 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
623 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
624
625 { RUN_STATE_COLO, RUN_STATE_RUNNING },
626
627 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
628 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
629 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
630 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
631 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
632 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
633 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
634 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
635 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
636 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
637 { RUN_STATE_RUNNING, RUN_STATE_COLO},
638
639 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
640
641 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
642 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
644
645 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
646 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
647 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
648 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
649 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
650 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
651
652 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
653 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
654 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
655 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
656
657 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
658 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
660
661 { RUN_STATE__MAX, RUN_STATE__MAX },
662 };
663
664 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
665
666 bool runstate_check(RunState state)
667 {
668 return current_run_state == state;
669 }
670
671 bool runstate_store(char *str, size_t size)
672 {
673 const char *state = RunState_str(current_run_state);
674 size_t len = strlen(state) + 1;
675
676 if (len > size) {
677 return false;
678 }
679 memcpy(str, state, len);
680 return true;
681 }
682
683 static void runstate_init(void)
684 {
685 const RunStateTransition *p;
686
687 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
688 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
689 runstate_valid_transitions[p->from][p->to] = true;
690 }
691
692 qemu_mutex_init(&vmstop_lock);
693 }
694
695 /* This function will abort() on invalid state transitions */
696 void runstate_set(RunState new_state)
697 {
698 assert(new_state < RUN_STATE__MAX);
699
700 trace_runstate_set(current_run_state, RunState_str(current_run_state),
701 new_state, RunState_str(new_state));
702
703 if (current_run_state == new_state) {
704 return;
705 }
706
707 if (!runstate_valid_transitions[current_run_state][new_state]) {
708 error_report("invalid runstate transition: '%s' -> '%s'",
709 RunState_str(current_run_state),
710 RunState_str(new_state));
711 abort();
712 }
713
714 current_run_state = new_state;
715 }
716
717 int runstate_is_running(void)
718 {
719 return runstate_check(RUN_STATE_RUNNING);
720 }
721
722 bool runstate_needs_reset(void)
723 {
724 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
725 runstate_check(RUN_STATE_SHUTDOWN);
726 }
727
728 StatusInfo *qmp_query_status(Error **errp)
729 {
730 StatusInfo *info = g_malloc0(sizeof(*info));
731
732 info->running = runstate_is_running();
733 info->singlestep = singlestep;
734 info->status = current_run_state;
735
736 return info;
737 }
738
739 bool qemu_vmstop_requested(RunState *r)
740 {
741 qemu_mutex_lock(&vmstop_lock);
742 *r = vmstop_requested;
743 vmstop_requested = RUN_STATE__MAX;
744 qemu_mutex_unlock(&vmstop_lock);
745 return *r < RUN_STATE__MAX;
746 }
747
748 void qemu_system_vmstop_request_prepare(void)
749 {
750 qemu_mutex_lock(&vmstop_lock);
751 }
752
753 void qemu_system_vmstop_request(RunState state)
754 {
755 vmstop_requested = state;
756 qemu_mutex_unlock(&vmstop_lock);
757 qemu_notify_event();
758 }
759
760 /***********************************************************/
761 /* RTC reference time/date access */
762 static time_t qemu_ref_timedate(QEMUClockType clock)
763 {
764 time_t value = qemu_clock_get_ms(clock) / 1000;
765 switch (clock) {
766 case QEMU_CLOCK_REALTIME:
767 value -= rtc_realtime_clock_offset;
768 /* fall through */
769 case QEMU_CLOCK_VIRTUAL:
770 value += rtc_ref_start_datetime;
771 break;
772 case QEMU_CLOCK_HOST:
773 if (rtc_base_type == RTC_BASE_DATETIME) {
774 value -= rtc_host_datetime_offset;
775 }
776 break;
777 default:
778 assert(0);
779 }
780 return value;
781 }
782
783 void qemu_get_timedate(struct tm *tm, int offset)
784 {
785 time_t ti = qemu_ref_timedate(rtc_clock);
786
787 ti += offset;
788
789 switch (rtc_base_type) {
790 case RTC_BASE_DATETIME:
791 case RTC_BASE_UTC:
792 gmtime_r(&ti, tm);
793 break;
794 case RTC_BASE_LOCALTIME:
795 localtime_r(&ti, tm);
796 break;
797 }
798 }
799
800 int qemu_timedate_diff(struct tm *tm)
801 {
802 time_t seconds;
803
804 switch (rtc_base_type) {
805 case RTC_BASE_DATETIME:
806 case RTC_BASE_UTC:
807 seconds = mktimegm(tm);
808 break;
809 case RTC_BASE_LOCALTIME:
810 {
811 struct tm tmp = *tm;
812 tmp.tm_isdst = -1; /* use timezone to figure it out */
813 seconds = mktime(&tmp);
814 break;
815 }
816 default:
817 abort();
818 }
819
820 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
821 }
822
823 static void configure_rtc_base_datetime(const char *startdate)
824 {
825 time_t rtc_start_datetime;
826 struct tm tm;
827
828 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
829 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
830 /* OK */
831 } else if (sscanf(startdate, "%d-%d-%d",
832 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
833 tm.tm_hour = 0;
834 tm.tm_min = 0;
835 tm.tm_sec = 0;
836 } else {
837 goto date_fail;
838 }
839 tm.tm_year -= 1900;
840 tm.tm_mon--;
841 rtc_start_datetime = mktimegm(&tm);
842 if (rtc_start_datetime == -1) {
843 date_fail:
844 error_report("invalid datetime format");
845 error_printf("valid formats: "
846 "'2006-06-17T16:01:21' or '2006-06-17'\n");
847 exit(1);
848 }
849 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
850 rtc_ref_start_datetime = rtc_start_datetime;
851 }
852
853 static void configure_rtc(QemuOpts *opts)
854 {
855 const char *value;
856
857 /* Set defaults */
858 rtc_clock = QEMU_CLOCK_HOST;
859 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
860 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
861
862 value = qemu_opt_get(opts, "base");
863 if (value) {
864 if (!strcmp(value, "utc")) {
865 rtc_base_type = RTC_BASE_UTC;
866 } else if (!strcmp(value, "localtime")) {
867 Error *blocker = NULL;
868 rtc_base_type = RTC_BASE_LOCALTIME;
869 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
870 "-rtc base=localtime");
871 replay_add_blocker(blocker);
872 } else {
873 rtc_base_type = RTC_BASE_DATETIME;
874 configure_rtc_base_datetime(value);
875 }
876 }
877 value = qemu_opt_get(opts, "clock");
878 if (value) {
879 if (!strcmp(value, "host")) {
880 rtc_clock = QEMU_CLOCK_HOST;
881 } else if (!strcmp(value, "rt")) {
882 rtc_clock = QEMU_CLOCK_REALTIME;
883 } else if (!strcmp(value, "vm")) {
884 rtc_clock = QEMU_CLOCK_VIRTUAL;
885 } else {
886 error_report("invalid option value '%s'", value);
887 exit(1);
888 }
889 }
890 value = qemu_opt_get(opts, "driftfix");
891 if (value) {
892 if (!strcmp(value, "slew")) {
893 object_register_sugar_prop("mc146818rtc",
894 "lost_tick_policy",
895 "slew");
896 } else if (!strcmp(value, "none")) {
897 /* discard is default */
898 } else {
899 error_report("invalid option value '%s'", value);
900 exit(1);
901 }
902 }
903 }
904
905 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
906 {
907 const char *proc_name;
908
909 if (qemu_opt_get(opts, "debug-threads")) {
910 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
911 }
912 qemu_name = qemu_opt_get(opts, "guest");
913
914 proc_name = qemu_opt_get(opts, "process");
915 if (proc_name) {
916 os_set_proc_name(proc_name);
917 }
918
919 return 0;
920 }
921
922 bool defaults_enabled(void)
923 {
924 return has_defaults;
925 }
926
927 #ifndef _WIN32
928 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
929 {
930 int fd, dupfd, flags;
931 int64_t fdset_id;
932 const char *fd_opaque = NULL;
933 AddfdInfo *fdinfo;
934
935 fd = qemu_opt_get_number(opts, "fd", -1);
936 fdset_id = qemu_opt_get_number(opts, "set", -1);
937 fd_opaque = qemu_opt_get(opts, "opaque");
938
939 if (fd < 0) {
940 error_setg(errp, "fd option is required and must be non-negative");
941 return -1;
942 }
943
944 if (fd <= STDERR_FILENO) {
945 error_setg(errp, "fd cannot be a standard I/O stream");
946 return -1;
947 }
948
949 /*
950 * All fds inherited across exec() necessarily have FD_CLOEXEC
951 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
952 */
953 flags = fcntl(fd, F_GETFD);
954 if (flags == -1 || (flags & FD_CLOEXEC)) {
955 error_setg(errp, "fd is not valid or already in use");
956 return -1;
957 }
958
959 if (fdset_id < 0) {
960 error_setg(errp, "set option is required and must be non-negative");
961 return -1;
962 }
963
964 #ifdef F_DUPFD_CLOEXEC
965 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
966 #else
967 dupfd = dup(fd);
968 if (dupfd != -1) {
969 qemu_set_cloexec(dupfd);
970 }
971 #endif
972 if (dupfd == -1) {
973 error_setg(errp, "error duplicating fd: %s", strerror(errno));
974 return -1;
975 }
976
977 /* add the duplicate fd, and optionally the opaque string, to the fd set */
978 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
979 &error_abort);
980 g_free(fdinfo);
981
982 return 0;
983 }
984
985 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
986 {
987 int fd;
988
989 fd = qemu_opt_get_number(opts, "fd", -1);
990 close(fd);
991
992 return 0;
993 }
994 #endif
995
996 /***********************************************************/
997 /* QEMU Block devices */
998
999 #define HD_OPTS "media=disk"
1000 #define CDROM_OPTS "media=cdrom"
1001 #define FD_OPTS ""
1002 #define PFLASH_OPTS ""
1003 #define MTD_OPTS ""
1004 #define SD_OPTS ""
1005
1006 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1007 {
1008 BlockInterfaceType *block_default_type = opaque;
1009
1010 return drive_new(opts, *block_default_type, errp) == NULL;
1011 }
1012
1013 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1014 {
1015 if (qemu_opt_get(opts, "snapshot") == NULL) {
1016 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1017 }
1018 return 0;
1019 }
1020
1021 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1022 int index, const char *optstr)
1023 {
1024 QemuOpts *opts;
1025 DriveInfo *dinfo;
1026
1027 if (!enable || drive_get_by_index(type, index)) {
1028 return;
1029 }
1030
1031 opts = drive_add(type, index, NULL, optstr);
1032 if (snapshot) {
1033 drive_enable_snapshot(NULL, opts, NULL);
1034 }
1035
1036 dinfo = drive_new(opts, type, &error_abort);
1037 dinfo->is_default = true;
1038
1039 }
1040
1041 typedef struct BlockdevOptionsQueueEntry {
1042 BlockdevOptions *bdo;
1043 Location loc;
1044 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1045 } BlockdevOptionsQueueEntry;
1046
1047 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1048
1049 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1050 MachineClass *machine_class, int snapshot)
1051 {
1052 /*
1053 * If the currently selected machine wishes to override the
1054 * units-per-bus property of its default HBA interface type, do so
1055 * now.
1056 */
1057 if (machine_class->units_per_default_bus) {
1058 override_max_devs(machine_class->block_default_type,
1059 machine_class->units_per_default_bus);
1060 }
1061
1062 /* open the virtual block devices */
1063 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1064 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1065
1066 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1067 loc_push_restore(&bdo->loc);
1068 qmp_blockdev_add(bdo->bdo, &error_fatal);
1069 loc_pop(&bdo->loc);
1070 qapi_free_BlockdevOptions(bdo->bdo);
1071 g_free(bdo);
1072 }
1073 if (snapshot) {
1074 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1075 NULL, NULL);
1076 }
1077 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1078 &machine_class->block_default_type, &error_fatal)) {
1079 /* We printed help */
1080 exit(0);
1081 }
1082
1083 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1084 CDROM_OPTS);
1085 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1086 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1087
1088 }
1089
1090 static QemuOptsList qemu_smp_opts = {
1091 .name = "smp-opts",
1092 .implied_opt_name = "cpus",
1093 .merge_lists = true,
1094 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1095 .desc = {
1096 {
1097 .name = "cpus",
1098 .type = QEMU_OPT_NUMBER,
1099 }, {
1100 .name = "sockets",
1101 .type = QEMU_OPT_NUMBER,
1102 }, {
1103 .name = "dies",
1104 .type = QEMU_OPT_NUMBER,
1105 }, {
1106 .name = "cores",
1107 .type = QEMU_OPT_NUMBER,
1108 }, {
1109 .name = "threads",
1110 .type = QEMU_OPT_NUMBER,
1111 }, {
1112 .name = "maxcpus",
1113 .type = QEMU_OPT_NUMBER,
1114 },
1115 { /*End of list */ }
1116 },
1117 };
1118
1119 static void realtime_init(void)
1120 {
1121 if (enable_mlock) {
1122 if (os_mlock() < 0) {
1123 error_report("locking memory failed");
1124 exit(1);
1125 }
1126 }
1127 }
1128
1129
1130 static void configure_msg(QemuOpts *opts)
1131 {
1132 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1133 }
1134
1135
1136 /***********************************************************/
1137 /* USB devices */
1138
1139 static int usb_device_add(const char *devname)
1140 {
1141 USBDevice *dev = NULL;
1142
1143 if (!machine_usb(current_machine)) {
1144 return -1;
1145 }
1146
1147 dev = usbdevice_create(devname);
1148 if (!dev)
1149 return -1;
1150
1151 return 0;
1152 }
1153
1154 static int usb_parse(const char *cmdline)
1155 {
1156 int r;
1157 r = usb_device_add(cmdline);
1158 if (r < 0) {
1159 error_report("could not add USB device '%s'", cmdline);
1160 }
1161 return r;
1162 }
1163
1164 /***********************************************************/
1165 /* machine registration */
1166
1167 MachineState *current_machine;
1168
1169 static MachineClass *find_machine(const char *name, GSList *machines)
1170 {
1171 GSList *el;
1172
1173 for (el = machines; el; el = el->next) {
1174 MachineClass *mc = el->data;
1175
1176 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1177 return mc;
1178 }
1179 }
1180
1181 return NULL;
1182 }
1183
1184 static MachineClass *find_default_machine(GSList *machines)
1185 {
1186 GSList *el;
1187
1188 for (el = machines; el; el = el->next) {
1189 MachineClass *mc = el->data;
1190
1191 if (mc->is_default) {
1192 return mc;
1193 }
1194 }
1195
1196 return NULL;
1197 }
1198
1199 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1200 {
1201 ObjectProperty *prop;
1202 ObjectPropertyIterator iter;
1203
1204 if (!qemu_opt_has_help_opt(opts)) {
1205 return 0;
1206 }
1207
1208 object_property_iter_init(&iter, OBJECT(machine));
1209 while ((prop = object_property_iter_next(&iter))) {
1210 if (!prop->set) {
1211 continue;
1212 }
1213
1214 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1215 prop->name, prop->type);
1216 if (prop->description) {
1217 printf(" (%s)\n", prop->description);
1218 } else {
1219 printf("\n");
1220 }
1221 }
1222
1223 return 1;
1224 }
1225
1226 struct VMChangeStateEntry {
1227 VMChangeStateHandler *cb;
1228 void *opaque;
1229 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1230 int priority;
1231 };
1232
1233 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1234
1235 /**
1236 * qemu_add_vm_change_state_handler_prio:
1237 * @cb: the callback to invoke
1238 * @opaque: user data passed to the callback
1239 * @priority: low priorities execute first when the vm runs and the reverse is
1240 * true when the vm stops
1241 *
1242 * Register a callback function that is invoked when the vm starts or stops
1243 * running.
1244 *
1245 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1246 */
1247 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1248 VMChangeStateHandler *cb, void *opaque, int priority)
1249 {
1250 VMChangeStateEntry *e;
1251 VMChangeStateEntry *other;
1252
1253 e = g_malloc0(sizeof(*e));
1254 e->cb = cb;
1255 e->opaque = opaque;
1256 e->priority = priority;
1257
1258 /* Keep list sorted in ascending priority order */
1259 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1260 if (priority < other->priority) {
1261 QTAILQ_INSERT_BEFORE(other, e, entries);
1262 return e;
1263 }
1264 }
1265
1266 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1267 return e;
1268 }
1269
1270 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1271 void *opaque)
1272 {
1273 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1274 }
1275
1276 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1277 {
1278 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1279 g_free(e);
1280 }
1281
1282 void vm_state_notify(int running, RunState state)
1283 {
1284 VMChangeStateEntry *e, *next;
1285
1286 trace_vm_state_notify(running, state, RunState_str(state));
1287
1288 if (running) {
1289 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1290 e->cb(e->opaque, running, state);
1291 }
1292 } else {
1293 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1294 e->cb(e->opaque, running, state);
1295 }
1296 }
1297 }
1298
1299 static ShutdownCause reset_requested;
1300 static ShutdownCause shutdown_requested;
1301 static int shutdown_signal;
1302 static pid_t shutdown_pid;
1303 static int powerdown_requested;
1304 static int debug_requested;
1305 static int suspend_requested;
1306 static bool preconfig_exit_requested = true;
1307 static WakeupReason wakeup_reason;
1308 static NotifierList powerdown_notifiers =
1309 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1310 static NotifierList suspend_notifiers =
1311 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1312 static NotifierList wakeup_notifiers =
1313 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1314 static NotifierList shutdown_notifiers =
1315 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1316 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1317
1318 ShutdownCause qemu_shutdown_requested_get(void)
1319 {
1320 return shutdown_requested;
1321 }
1322
1323 ShutdownCause qemu_reset_requested_get(void)
1324 {
1325 return reset_requested;
1326 }
1327
1328 static int qemu_shutdown_requested(void)
1329 {
1330 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1331 }
1332
1333 static void qemu_kill_report(void)
1334 {
1335 if (!qtest_driver() && shutdown_signal) {
1336 if (shutdown_pid == 0) {
1337 /* This happens for eg ^C at the terminal, so it's worth
1338 * avoiding printing an odd message in that case.
1339 */
1340 error_report("terminating on signal %d", shutdown_signal);
1341 } else {
1342 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1343
1344 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1345 shutdown_signal, shutdown_pid,
1346 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1347 g_free(shutdown_cmd);
1348 }
1349 shutdown_signal = 0;
1350 }
1351 }
1352
1353 static ShutdownCause qemu_reset_requested(void)
1354 {
1355 ShutdownCause r = reset_requested;
1356
1357 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1358 reset_requested = SHUTDOWN_CAUSE_NONE;
1359 return r;
1360 }
1361 return SHUTDOWN_CAUSE_NONE;
1362 }
1363
1364 static int qemu_suspend_requested(void)
1365 {
1366 int r = suspend_requested;
1367 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1368 suspend_requested = 0;
1369 return r;
1370 }
1371 return false;
1372 }
1373
1374 static WakeupReason qemu_wakeup_requested(void)
1375 {
1376 return wakeup_reason;
1377 }
1378
1379 static int qemu_powerdown_requested(void)
1380 {
1381 int r = powerdown_requested;
1382 powerdown_requested = 0;
1383 return r;
1384 }
1385
1386 static int qemu_debug_requested(void)
1387 {
1388 int r = debug_requested;
1389 debug_requested = 0;
1390 return r;
1391 }
1392
1393 void qemu_exit_preconfig_request(void)
1394 {
1395 preconfig_exit_requested = true;
1396 }
1397
1398 /*
1399 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1400 */
1401 void qemu_system_reset(ShutdownCause reason)
1402 {
1403 MachineClass *mc;
1404
1405 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1406
1407 cpu_synchronize_all_states();
1408
1409 if (mc && mc->reset) {
1410 mc->reset(current_machine);
1411 } else {
1412 qemu_devices_reset();
1413 }
1414 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1415 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1416 }
1417 cpu_synchronize_all_post_reset();
1418 }
1419
1420 /*
1421 * Wake the VM after suspend.
1422 */
1423 static void qemu_system_wakeup(void)
1424 {
1425 MachineClass *mc;
1426
1427 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1428
1429 if (mc && mc->wakeup) {
1430 mc->wakeup(current_machine);
1431 }
1432 }
1433
1434 void qemu_system_guest_panicked(GuestPanicInformation *info)
1435 {
1436 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1437
1438 if (current_cpu) {
1439 current_cpu->crash_occurred = true;
1440 }
1441 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1442 !!info, info);
1443 vm_stop(RUN_STATE_GUEST_PANICKED);
1444 if (!no_shutdown) {
1445 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1446 !!info, info);
1447 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1448 }
1449
1450 if (info) {
1451 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1452 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1453 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1454 info->u.hyper_v.arg1,
1455 info->u.hyper_v.arg2,
1456 info->u.hyper_v.arg3,
1457 info->u.hyper_v.arg4,
1458 info->u.hyper_v.arg5);
1459 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1460 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1461 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1462 info->u.s390.core,
1463 S390CrashReason_str(info->u.s390.reason),
1464 info->u.s390.psw_mask,
1465 info->u.s390.psw_addr);
1466 }
1467 qapi_free_GuestPanicInformation(info);
1468 }
1469 }
1470
1471 void qemu_system_reset_request(ShutdownCause reason)
1472 {
1473 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1474 shutdown_requested = reason;
1475 } else {
1476 reset_requested = reason;
1477 }
1478 cpu_stop_current();
1479 qemu_notify_event();
1480 }
1481
1482 static void qemu_system_suspend(void)
1483 {
1484 pause_all_vcpus();
1485 notifier_list_notify(&suspend_notifiers, NULL);
1486 runstate_set(RUN_STATE_SUSPENDED);
1487 qapi_event_send_suspend();
1488 }
1489
1490 void qemu_system_suspend_request(void)
1491 {
1492 if (runstate_check(RUN_STATE_SUSPENDED)) {
1493 return;
1494 }
1495 suspend_requested = 1;
1496 cpu_stop_current();
1497 qemu_notify_event();
1498 }
1499
1500 void qemu_register_suspend_notifier(Notifier *notifier)
1501 {
1502 notifier_list_add(&suspend_notifiers, notifier);
1503 }
1504
1505 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1506 {
1507 trace_system_wakeup_request(reason);
1508
1509 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1510 error_setg(errp,
1511 "Unable to wake up: guest is not in suspended state");
1512 return;
1513 }
1514 if (!(wakeup_reason_mask & (1 << reason))) {
1515 return;
1516 }
1517 runstate_set(RUN_STATE_RUNNING);
1518 wakeup_reason = reason;
1519 qemu_notify_event();
1520 }
1521
1522 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1523 {
1524 if (enabled) {
1525 wakeup_reason_mask |= (1 << reason);
1526 } else {
1527 wakeup_reason_mask &= ~(1 << reason);
1528 }
1529 }
1530
1531 void qemu_register_wakeup_notifier(Notifier *notifier)
1532 {
1533 notifier_list_add(&wakeup_notifiers, notifier);
1534 }
1535
1536 void qemu_register_wakeup_support(void)
1537 {
1538 wakeup_suspend_enabled = true;
1539 }
1540
1541 bool qemu_wakeup_suspend_enabled(void)
1542 {
1543 return wakeup_suspend_enabled;
1544 }
1545
1546 void qemu_system_killed(int signal, pid_t pid)
1547 {
1548 shutdown_signal = signal;
1549 shutdown_pid = pid;
1550 no_shutdown = 0;
1551
1552 /* Cannot call qemu_system_shutdown_request directly because
1553 * we are in a signal handler.
1554 */
1555 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1556 qemu_notify_event();
1557 }
1558
1559 void qemu_system_shutdown_request(ShutdownCause reason)
1560 {
1561 trace_qemu_system_shutdown_request(reason);
1562 replay_shutdown_request(reason);
1563 shutdown_requested = reason;
1564 qemu_notify_event();
1565 }
1566
1567 static void qemu_system_powerdown(void)
1568 {
1569 qapi_event_send_powerdown();
1570 notifier_list_notify(&powerdown_notifiers, NULL);
1571 }
1572
1573 static void qemu_system_shutdown(ShutdownCause cause)
1574 {
1575 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1576 notifier_list_notify(&shutdown_notifiers, &cause);
1577 }
1578
1579 void qemu_system_powerdown_request(void)
1580 {
1581 trace_qemu_system_powerdown_request();
1582 powerdown_requested = 1;
1583 qemu_notify_event();
1584 }
1585
1586 void qemu_register_powerdown_notifier(Notifier *notifier)
1587 {
1588 notifier_list_add(&powerdown_notifiers, notifier);
1589 }
1590
1591 void qemu_register_shutdown_notifier(Notifier *notifier)
1592 {
1593 notifier_list_add(&shutdown_notifiers, notifier);
1594 }
1595
1596 void qemu_system_debug_request(void)
1597 {
1598 debug_requested = 1;
1599 qemu_notify_event();
1600 }
1601
1602 static bool main_loop_should_exit(void)
1603 {
1604 RunState r;
1605 ShutdownCause request;
1606
1607 if (preconfig_exit_requested) {
1608 if (runstate_check(RUN_STATE_PRECONFIG)) {
1609 runstate_set(RUN_STATE_PRELAUNCH);
1610 }
1611 preconfig_exit_requested = false;
1612 return true;
1613 }
1614 if (qemu_debug_requested()) {
1615 vm_stop(RUN_STATE_DEBUG);
1616 }
1617 if (qemu_suspend_requested()) {
1618 qemu_system_suspend();
1619 }
1620 request = qemu_shutdown_requested();
1621 if (request) {
1622 qemu_kill_report();
1623 qemu_system_shutdown(request);
1624 if (no_shutdown) {
1625 vm_stop(RUN_STATE_SHUTDOWN);
1626 } else {
1627 return true;
1628 }
1629 }
1630 request = qemu_reset_requested();
1631 if (request) {
1632 pause_all_vcpus();
1633 qemu_system_reset(request);
1634 resume_all_vcpus();
1635 /*
1636 * runstate can change in pause_all_vcpus()
1637 * as iothread mutex is unlocked
1638 */
1639 if (!runstate_check(RUN_STATE_RUNNING) &&
1640 !runstate_check(RUN_STATE_INMIGRATE) &&
1641 !runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1642 runstate_set(RUN_STATE_PRELAUNCH);
1643 }
1644 }
1645 if (qemu_wakeup_requested()) {
1646 pause_all_vcpus();
1647 qemu_system_wakeup();
1648 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1649 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1650 resume_all_vcpus();
1651 qapi_event_send_wakeup();
1652 }
1653 if (qemu_powerdown_requested()) {
1654 qemu_system_powerdown();
1655 }
1656 if (qemu_vmstop_requested(&r)) {
1657 vm_stop(r);
1658 }
1659 return false;
1660 }
1661
1662 static void main_loop(void)
1663 {
1664 #ifdef CONFIG_PROFILER
1665 int64_t ti;
1666 #endif
1667 while (!main_loop_should_exit()) {
1668 #ifdef CONFIG_PROFILER
1669 ti = profile_getclock();
1670 #endif
1671 main_loop_wait(false);
1672 #ifdef CONFIG_PROFILER
1673 dev_time += profile_getclock() - ti;
1674 #endif
1675 }
1676 }
1677
1678 static void version(void)
1679 {
1680 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1681 QEMU_COPYRIGHT "\n");
1682 }
1683
1684 static void help(int exitcode)
1685 {
1686 version();
1687 printf("usage: %s [options] [disk_image]\n\n"
1688 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1689 error_get_progname());
1690
1691 #define QEMU_OPTIONS_GENERATE_HELP
1692 #include "qemu-options-wrapper.h"
1693
1694 printf("\nDuring emulation, the following keys are useful:\n"
1695 "ctrl-alt-f toggle full screen\n"
1696 "ctrl-alt-n switch to virtual console 'n'\n"
1697 "ctrl-alt toggle mouse and keyboard grab\n"
1698 "\n"
1699 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1700 "\n"
1701 QEMU_HELP_BOTTOM "\n");
1702
1703 exit(exitcode);
1704 }
1705
1706 #define HAS_ARG 0x0001
1707
1708 typedef struct QEMUOption {
1709 const char *name;
1710 int flags;
1711 int index;
1712 uint32_t arch_mask;
1713 } QEMUOption;
1714
1715 static const QEMUOption qemu_options[] = {
1716 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1717 #define QEMU_OPTIONS_GENERATE_OPTIONS
1718 #include "qemu-options-wrapper.h"
1719 { NULL },
1720 };
1721
1722 typedef struct VGAInterfaceInfo {
1723 const char *opt_name; /* option name */
1724 const char *name; /* human-readable name */
1725 /* Class names indicating that support is available.
1726 * If no class is specified, the interface is always available */
1727 const char *class_names[2];
1728 } VGAInterfaceInfo;
1729
1730 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1731 [VGA_NONE] = {
1732 .opt_name = "none",
1733 .name = "no graphic card",
1734 },
1735 [VGA_STD] = {
1736 .opt_name = "std",
1737 .name = "standard VGA",
1738 .class_names = { "VGA", "isa-vga" },
1739 },
1740 [VGA_CIRRUS] = {
1741 .opt_name = "cirrus",
1742 .name = "Cirrus VGA",
1743 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1744 },
1745 [VGA_VMWARE] = {
1746 .opt_name = "vmware",
1747 .name = "VMWare SVGA",
1748 .class_names = { "vmware-svga" },
1749 },
1750 [VGA_VIRTIO] = {
1751 .opt_name = "virtio",
1752 .name = "Virtio VGA",
1753 .class_names = { "virtio-vga" },
1754 },
1755 [VGA_QXL] = {
1756 .opt_name = "qxl",
1757 .name = "QXL VGA",
1758 .class_names = { "qxl-vga" },
1759 },
1760 [VGA_TCX] = {
1761 .opt_name = "tcx",
1762 .name = "TCX framebuffer",
1763 .class_names = { "SUNW,tcx" },
1764 },
1765 [VGA_CG3] = {
1766 .opt_name = "cg3",
1767 .name = "CG3 framebuffer",
1768 .class_names = { "cgthree" },
1769 },
1770 [VGA_XENFB] = {
1771 .opt_name = "xenfb",
1772 .name = "Xen paravirtualized framebuffer",
1773 },
1774 };
1775
1776 static bool vga_interface_available(VGAInterfaceType t)
1777 {
1778 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1779
1780 assert(t < VGA_TYPE_MAX);
1781 return !ti->class_names[0] ||
1782 object_class_by_name(ti->class_names[0]) ||
1783 object_class_by_name(ti->class_names[1]);
1784 }
1785
1786 static const char *
1787 get_default_vga_model(const MachineClass *machine_class)
1788 {
1789 if (machine_class->default_display) {
1790 return machine_class->default_display;
1791 } else if (vga_interface_available(VGA_CIRRUS)) {
1792 return "cirrus";
1793 } else if (vga_interface_available(VGA_STD)) {
1794 return "std";
1795 }
1796
1797 return NULL;
1798 }
1799
1800 static void select_vgahw(const MachineClass *machine_class, const char *p)
1801 {
1802 const char *opts;
1803 int t;
1804
1805 if (g_str_equal(p, "help")) {
1806 const char *def = get_default_vga_model(machine_class);
1807
1808 for (t = 0; t < VGA_TYPE_MAX; t++) {
1809 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1810
1811 if (vga_interface_available(t) && ti->opt_name) {
1812 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1813 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1814 }
1815 }
1816 exit(0);
1817 }
1818
1819 assert(vga_interface_type == VGA_NONE);
1820 for (t = 0; t < VGA_TYPE_MAX; t++) {
1821 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1822 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1823 if (!vga_interface_available(t)) {
1824 error_report("%s not available", ti->name);
1825 exit(1);
1826 }
1827 vga_interface_type = t;
1828 break;
1829 }
1830 }
1831 if (t == VGA_TYPE_MAX) {
1832 invalid_vga:
1833 error_report("unknown vga type: %s", p);
1834 exit(1);
1835 }
1836 while (*opts) {
1837 const char *nextopt;
1838
1839 if (strstart(opts, ",retrace=", &nextopt)) {
1840 opts = nextopt;
1841 if (strstart(opts, "dumb", &nextopt))
1842 vga_retrace_method = VGA_RETRACE_DUMB;
1843 else if (strstart(opts, "precise", &nextopt))
1844 vga_retrace_method = VGA_RETRACE_PRECISE;
1845 else goto invalid_vga;
1846 } else goto invalid_vga;
1847 opts = nextopt;
1848 }
1849 }
1850
1851 static void parse_display_qapi(const char *optarg)
1852 {
1853 DisplayOptions *opts;
1854 Visitor *v;
1855
1856 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1857
1858 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1859 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1860
1861 qapi_free_DisplayOptions(opts);
1862 visit_free(v);
1863 }
1864
1865 DisplayOptions *qmp_query_display_options(Error **errp)
1866 {
1867 return QAPI_CLONE(DisplayOptions, &dpy);
1868 }
1869
1870 static void parse_display(const char *p)
1871 {
1872 const char *opts;
1873
1874 if (is_help_option(p)) {
1875 qemu_display_help();
1876 exit(0);
1877 }
1878
1879 if (strstart(p, "sdl", &opts)) {
1880 /*
1881 * sdl DisplayType needs hand-crafted parser instead of
1882 * parse_display_qapi() due to some options not in
1883 * DisplayOptions, specifically:
1884 * - frame
1885 * Already deprecated.
1886 * - ctrl_grab + alt_grab
1887 * Not clear yet what happens to them long-term. Should
1888 * replaced by something better or deprecated and dropped.
1889 */
1890 dpy.type = DISPLAY_TYPE_SDL;
1891 while (*opts) {
1892 const char *nextopt;
1893
1894 if (strstart(opts, ",alt_grab=", &nextopt)) {
1895 opts = nextopt;
1896 if (strstart(opts, "on", &nextopt)) {
1897 alt_grab = 1;
1898 } else if (strstart(opts, "off", &nextopt)) {
1899 alt_grab = 0;
1900 } else {
1901 goto invalid_sdl_args;
1902 }
1903 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1904 opts = nextopt;
1905 if (strstart(opts, "on", &nextopt)) {
1906 ctrl_grab = 1;
1907 } else if (strstart(opts, "off", &nextopt)) {
1908 ctrl_grab = 0;
1909 } else {
1910 goto invalid_sdl_args;
1911 }
1912 } else if (strstart(opts, ",window_close=", &nextopt)) {
1913 opts = nextopt;
1914 dpy.has_window_close = true;
1915 if (strstart(opts, "on", &nextopt)) {
1916 dpy.window_close = true;
1917 } else if (strstart(opts, "off", &nextopt)) {
1918 dpy.window_close = false;
1919 } else {
1920 goto invalid_sdl_args;
1921 }
1922 } else if (strstart(opts, ",gl=", &nextopt)) {
1923 opts = nextopt;
1924 dpy.has_gl = true;
1925 if (strstart(opts, "on", &nextopt)) {
1926 dpy.gl = DISPLAYGL_MODE_ON;
1927 } else if (strstart(opts, "core", &nextopt)) {
1928 dpy.gl = DISPLAYGL_MODE_CORE;
1929 } else if (strstart(opts, "es", &nextopt)) {
1930 dpy.gl = DISPLAYGL_MODE_ES;
1931 } else if (strstart(opts, "off", &nextopt)) {
1932 dpy.gl = DISPLAYGL_MODE_OFF;
1933 } else {
1934 goto invalid_sdl_args;
1935 }
1936 } else {
1937 invalid_sdl_args:
1938 error_report("invalid SDL option string");
1939 exit(1);
1940 }
1941 opts = nextopt;
1942 }
1943 } else if (strstart(p, "vnc", &opts)) {
1944 /*
1945 * vnc isn't a (local) DisplayType but a protocol for remote
1946 * display access.
1947 */
1948 if (*opts == '=') {
1949 vnc_parse(opts + 1, &error_fatal);
1950 } else {
1951 error_report("VNC requires a display argument vnc=<display>");
1952 exit(1);
1953 }
1954 } else {
1955 parse_display_qapi(p);
1956 }
1957 }
1958
1959 char *qemu_find_file(int type, const char *name)
1960 {
1961 int i;
1962 const char *subdir;
1963 char *buf;
1964
1965 /* Try the name as a straight path first */
1966 if (access(name, R_OK) == 0) {
1967 trace_load_file(name, name);
1968 return g_strdup(name);
1969 }
1970
1971 switch (type) {
1972 case QEMU_FILE_TYPE_BIOS:
1973 subdir = "";
1974 break;
1975 case QEMU_FILE_TYPE_KEYMAP:
1976 subdir = "keymaps/";
1977 break;
1978 default:
1979 abort();
1980 }
1981
1982 for (i = 0; i < data_dir_idx; i++) {
1983 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
1984 if (access(buf, R_OK) == 0) {
1985 trace_load_file(name, buf);
1986 return buf;
1987 }
1988 g_free(buf);
1989 }
1990 return NULL;
1991 }
1992
1993 static void qemu_add_data_dir(const char *path)
1994 {
1995 int i;
1996
1997 if (path == NULL) {
1998 return;
1999 }
2000 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2001 return;
2002 }
2003 for (i = 0; i < data_dir_idx; i++) {
2004 if (strcmp(data_dir[i], path) == 0) {
2005 return; /* duplicate */
2006 }
2007 }
2008 data_dir[data_dir_idx++] = g_strdup(path);
2009 }
2010
2011 static inline bool nonempty_str(const char *str)
2012 {
2013 return str && *str;
2014 }
2015
2016 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2017 {
2018 gchar *buf;
2019 size_t size;
2020 const char *name, *file, *str;
2021 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2022
2023 if (fw_cfg == NULL) {
2024 error_setg(errp, "fw_cfg device not available");
2025 return -1;
2026 }
2027 name = qemu_opt_get(opts, "name");
2028 file = qemu_opt_get(opts, "file");
2029 str = qemu_opt_get(opts, "string");
2030
2031 /* we need name and either a file or the content string */
2032 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2033 error_setg(errp, "invalid argument(s)");
2034 return -1;
2035 }
2036 if (nonempty_str(file) && nonempty_str(str)) {
2037 error_setg(errp, "file and string are mutually exclusive");
2038 return -1;
2039 }
2040 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2041 error_setg(errp, "name too long (max. %d char)",
2042 FW_CFG_MAX_FILE_PATH - 1);
2043 return -1;
2044 }
2045 if (strncmp(name, "opt/", 4) != 0) {
2046 warn_report("externally provided fw_cfg item names "
2047 "should be prefixed with \"opt/\"");
2048 }
2049 if (nonempty_str(str)) {
2050 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2051 buf = g_memdup(str, size);
2052 } else {
2053 GError *err = NULL;
2054 if (!g_file_get_contents(file, &buf, &size, &err)) {
2055 error_setg(errp, "can't load %s: %s", file, err->message);
2056 g_error_free(err);
2057 return -1;
2058 }
2059 }
2060 /* For legacy, keep user files in a specific global order. */
2061 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2062 fw_cfg_add_file(fw_cfg, name, buf, size);
2063 fw_cfg_reset_order_override(fw_cfg);
2064 return 0;
2065 }
2066
2067 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2068 {
2069 return qdev_device_help(opts);
2070 }
2071
2072 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2073 {
2074 DeviceState *dev;
2075
2076 dev = qdev_device_add(opts, errp);
2077 if (!dev && *errp) {
2078 error_report_err(*errp);
2079 return -1;
2080 } else if (dev) {
2081 object_unref(OBJECT(dev));
2082 }
2083 return 0;
2084 }
2085
2086 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2087 {
2088 Error *local_err = NULL;
2089
2090 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2091 if (local_err) {
2092 error_propagate(errp, local_err);
2093 return -1;
2094 }
2095 exit(0);
2096 }
2097 return 0;
2098 }
2099
2100 #ifdef CONFIG_VIRTFS
2101 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2102 {
2103 return qemu_fsdev_add(opts, errp);
2104 }
2105 #endif
2106
2107 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2108 {
2109 Chardev *chr;
2110 bool qmp;
2111 bool pretty = false;
2112 const char *chardev;
2113 const char *mode;
2114
2115 mode = qemu_opt_get(opts, "mode");
2116 if (mode == NULL) {
2117 mode = "readline";
2118 }
2119 if (strcmp(mode, "readline") == 0) {
2120 qmp = false;
2121 } else if (strcmp(mode, "control") == 0) {
2122 qmp = true;
2123 } else {
2124 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2125 return -1;
2126 }
2127
2128 if (!qmp && qemu_opt_get(opts, "pretty")) {
2129 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2130 "and will be removed in future versions");
2131 }
2132 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2133 pretty = true;
2134 }
2135
2136 chardev = qemu_opt_get(opts, "chardev");
2137 if (!chardev) {
2138 error_report("chardev is required");
2139 exit(1);
2140 }
2141 chr = qemu_chr_find(chardev);
2142 if (chr == NULL) {
2143 error_setg(errp, "chardev \"%s\" not found", chardev);
2144 return -1;
2145 }
2146
2147 if (qmp) {
2148 monitor_init_qmp(chr, pretty);
2149 } else {
2150 monitor_init_hmp(chr, true);
2151 }
2152 return 0;
2153 }
2154
2155 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2156 {
2157 static int monitor_device_index = 0;
2158 QemuOpts *opts;
2159 const char *p;
2160 char label[32];
2161
2162 if (strstart(optarg, "chardev:", &p)) {
2163 snprintf(label, sizeof(label), "%s", p);
2164 } else {
2165 snprintf(label, sizeof(label), "compat_monitor%d",
2166 monitor_device_index);
2167 opts = qemu_chr_parse_compat(label, optarg, true);
2168 if (!opts) {
2169 error_report("parse error: %s", optarg);
2170 exit(1);
2171 }
2172 }
2173
2174 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2175 qemu_opt_set(opts, "mode", mode, &error_abort);
2176 qemu_opt_set(opts, "chardev", label, &error_abort);
2177 if (!strcmp(mode, "control")) {
2178 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2179 } else {
2180 assert(pretty == false);
2181 }
2182 monitor_device_index++;
2183 }
2184
2185 struct device_config {
2186 enum {
2187 DEV_USB, /* -usbdevice */
2188 DEV_SERIAL, /* -serial */
2189 DEV_PARALLEL, /* -parallel */
2190 DEV_DEBUGCON, /* -debugcon */
2191 DEV_GDB, /* -gdb, -s */
2192 DEV_SCLP, /* s390 sclp */
2193 } type;
2194 const char *cmdline;
2195 Location loc;
2196 QTAILQ_ENTRY(device_config) next;
2197 };
2198
2199 static QTAILQ_HEAD(, device_config) device_configs =
2200 QTAILQ_HEAD_INITIALIZER(device_configs);
2201
2202 static void add_device_config(int type, const char *cmdline)
2203 {
2204 struct device_config *conf;
2205
2206 conf = g_malloc0(sizeof(*conf));
2207 conf->type = type;
2208 conf->cmdline = cmdline;
2209 loc_save(&conf->loc);
2210 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2211 }
2212
2213 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2214 {
2215 struct device_config *conf;
2216 int rc;
2217
2218 QTAILQ_FOREACH(conf, &device_configs, next) {
2219 if (conf->type != type)
2220 continue;
2221 loc_push_restore(&conf->loc);
2222 rc = func(conf->cmdline);
2223 loc_pop(&conf->loc);
2224 if (rc) {
2225 return rc;
2226 }
2227 }
2228 return 0;
2229 }
2230
2231 static int serial_parse(const char *devname)
2232 {
2233 int index = num_serial_hds;
2234 char label[32];
2235
2236 if (strcmp(devname, "none") == 0)
2237 return 0;
2238 snprintf(label, sizeof(label), "serial%d", index);
2239 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2240
2241 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2242 if (!serial_hds[index]) {
2243 error_report("could not connect serial device"
2244 " to character backend '%s'", devname);
2245 return -1;
2246 }
2247 num_serial_hds++;
2248 return 0;
2249 }
2250
2251 Chardev *serial_hd(int i)
2252 {
2253 assert(i >= 0);
2254 if (i < num_serial_hds) {
2255 return serial_hds[i];
2256 }
2257 return NULL;
2258 }
2259
2260 int serial_max_hds(void)
2261 {
2262 return num_serial_hds;
2263 }
2264
2265 static int parallel_parse(const char *devname)
2266 {
2267 static int index = 0;
2268 char label[32];
2269
2270 if (strcmp(devname, "none") == 0)
2271 return 0;
2272 if (index == MAX_PARALLEL_PORTS) {
2273 error_report("too many parallel ports");
2274 exit(1);
2275 }
2276 snprintf(label, sizeof(label), "parallel%d", index);
2277 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2278 if (!parallel_hds[index]) {
2279 error_report("could not connect parallel device"
2280 " to character backend '%s'", devname);
2281 return -1;
2282 }
2283 index++;
2284 return 0;
2285 }
2286
2287 static int debugcon_parse(const char *devname)
2288 {
2289 QemuOpts *opts;
2290
2291 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2292 error_report("invalid character backend '%s'", devname);
2293 exit(1);
2294 }
2295 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2296 if (!opts) {
2297 error_report("already have a debugcon device");
2298 exit(1);
2299 }
2300 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2301 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2302 return 0;
2303 }
2304
2305 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2306 {
2307 const MachineClass *mc1 = a, *mc2 = b;
2308 int res;
2309
2310 if (mc1->family == NULL) {
2311 if (mc2->family == NULL) {
2312 /* Compare standalone machine types against each other; they sort
2313 * in increasing order.
2314 */
2315 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2316 object_class_get_name(OBJECT_CLASS(mc2)));
2317 }
2318
2319 /* Standalone machine types sort after families. */
2320 return 1;
2321 }
2322
2323 if (mc2->family == NULL) {
2324 /* Families sort before standalone machine types. */
2325 return -1;
2326 }
2327
2328 /* Families sort between each other alphabetically increasingly. */
2329 res = strcmp(mc1->family, mc2->family);
2330 if (res != 0) {
2331 return res;
2332 }
2333
2334 /* Within the same family, machine types sort in decreasing order. */
2335 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2336 object_class_get_name(OBJECT_CLASS(mc1)));
2337 }
2338
2339 static MachineClass *machine_parse(const char *name, GSList *machines)
2340 {
2341 MachineClass *mc;
2342 GSList *el;
2343
2344 if (is_help_option(name)) {
2345 printf("Supported machines are:\n");
2346 machines = g_slist_sort(machines, machine_class_cmp);
2347 for (el = machines; el; el = el->next) {
2348 MachineClass *mc = el->data;
2349 if (mc->alias) {
2350 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2351 }
2352 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2353 mc->is_default ? " (default)" : "",
2354 mc->deprecation_reason ? " (deprecated)" : "");
2355 }
2356 exit(0);
2357 }
2358
2359 mc = find_machine(name, machines);
2360 if (!mc) {
2361 error_report("unsupported machine type");
2362 error_printf("Use -machine help to list supported machines\n");
2363 exit(1);
2364 }
2365 return mc;
2366 }
2367
2368 void qemu_add_exit_notifier(Notifier *notify)
2369 {
2370 notifier_list_add(&exit_notifiers, notify);
2371 }
2372
2373 void qemu_remove_exit_notifier(Notifier *notify)
2374 {
2375 notifier_remove(notify);
2376 }
2377
2378 static void qemu_run_exit_notifiers(void)
2379 {
2380 notifier_list_notify(&exit_notifiers, NULL);
2381 }
2382
2383 static const char *pid_file;
2384 static Notifier qemu_unlink_pidfile_notifier;
2385
2386 static void qemu_unlink_pidfile(Notifier *n, void *data)
2387 {
2388 if (pid_file) {
2389 unlink(pid_file);
2390 }
2391 }
2392
2393 bool machine_init_done;
2394
2395 void qemu_add_machine_init_done_notifier(Notifier *notify)
2396 {
2397 notifier_list_add(&machine_init_done_notifiers, notify);
2398 if (machine_init_done) {
2399 notify->notify(notify, NULL);
2400 }
2401 }
2402
2403 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2404 {
2405 notifier_remove(notify);
2406 }
2407
2408 static void qemu_run_machine_init_done_notifiers(void)
2409 {
2410 machine_init_done = true;
2411 notifier_list_notify(&machine_init_done_notifiers, NULL);
2412 }
2413
2414 static const QEMUOption *lookup_opt(int argc, char **argv,
2415 const char **poptarg, int *poptind)
2416 {
2417 const QEMUOption *popt;
2418 int optind = *poptind;
2419 char *r = argv[optind];
2420 const char *optarg;
2421
2422 loc_set_cmdline(argv, optind, 1);
2423 optind++;
2424 /* Treat --foo the same as -foo. */
2425 if (r[1] == '-')
2426 r++;
2427 popt = qemu_options;
2428 for(;;) {
2429 if (!popt->name) {
2430 error_report("invalid option");
2431 exit(1);
2432 }
2433 if (!strcmp(popt->name, r + 1))
2434 break;
2435 popt++;
2436 }
2437 if (popt->flags & HAS_ARG) {
2438 if (optind >= argc) {
2439 error_report("requires an argument");
2440 exit(1);
2441 }
2442 optarg = argv[optind++];
2443 loc_set_cmdline(argv, optind - 2, 2);
2444 } else {
2445 optarg = NULL;
2446 }
2447
2448 *poptarg = optarg;
2449 *poptind = optind;
2450
2451 return popt;
2452 }
2453
2454 static MachineClass *select_machine(void)
2455 {
2456 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2457 MachineClass *machine_class = find_default_machine(machines);
2458 const char *optarg;
2459 QemuOpts *opts;
2460 Location loc;
2461
2462 loc_push_none(&loc);
2463
2464 opts = qemu_get_machine_opts();
2465 qemu_opts_loc_restore(opts);
2466
2467 optarg = qemu_opt_get(opts, "type");
2468 if (optarg) {
2469 machine_class = machine_parse(optarg, machines);
2470 }
2471
2472 if (!machine_class) {
2473 error_report("No machine specified, and there is no default");
2474 error_printf("Use -machine help to list supported machines\n");
2475 exit(1);
2476 }
2477
2478 loc_pop(&loc);
2479 g_slist_free(machines);
2480 return machine_class;
2481 }
2482
2483 static int object_parse_property_opt(Object *obj,
2484 const char *name, const char *value,
2485 const char *skip, Error **errp)
2486 {
2487 Error *local_err = NULL;
2488
2489 if (g_str_equal(name, skip)) {
2490 return 0;
2491 }
2492
2493 object_property_parse(obj, value, name, &local_err);
2494
2495 if (local_err) {
2496 error_propagate(errp, local_err);
2497 return -1;
2498 }
2499
2500 return 0;
2501 }
2502
2503 static int machine_set_property(void *opaque,
2504 const char *name, const char *value,
2505 Error **errp)
2506 {
2507 g_autofree char *qom_name = g_strdup(name);
2508 char *p;
2509
2510 for (p = qom_name; *p; p++) {
2511 if (*p == '_') {
2512 *p = '-';
2513 }
2514 }
2515
2516 /* Legacy options do not correspond to MachineState properties. */
2517 if (g_str_equal(qom_name, "accel")) {
2518 return 0;
2519 }
2520 if (g_str_equal(qom_name, "igd-passthru")) {
2521 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2522 return 0;
2523 }
2524 if (g_str_equal(qom_name, "kvm-shadow-mem") ||
2525 g_str_equal(qom_name, "kernel-irqchip")) {
2526 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2527 return 0;
2528 }
2529
2530 return object_parse_property_opt(opaque, name, value, "type", errp);
2531 }
2532
2533 /*
2534 * Initial object creation happens before all other
2535 * QEMU data types are created. The majority of objects
2536 * can be created at this point. The rng-egd object
2537 * cannot be created here, as it depends on the chardev
2538 * already existing.
2539 */
2540 static bool object_create_initial(const char *type, QemuOpts *opts)
2541 {
2542 if (user_creatable_print_help(type, opts)) {
2543 exit(0);
2544 }
2545
2546 /*
2547 * Objects should not be made "delayed" without a reason. If you
2548 * add one, state the reason in a comment!
2549 */
2550
2551 /* Reason: rng-egd property "chardev" */
2552 if (g_str_equal(type, "rng-egd")) {
2553 return false;
2554 }
2555
2556 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2557 /* Reason: cryptodev-vhost-user property "chardev" */
2558 if (g_str_equal(type, "cryptodev-vhost-user")) {
2559 return false;
2560 }
2561 #endif
2562
2563 /*
2564 * Reason: filter-* property "netdev" etc.
2565 */
2566 if (g_str_equal(type, "filter-buffer") ||
2567 g_str_equal(type, "filter-dump") ||
2568 g_str_equal(type, "filter-mirror") ||
2569 g_str_equal(type, "filter-redirector") ||
2570 g_str_equal(type, "colo-compare") ||
2571 g_str_equal(type, "filter-rewriter") ||
2572 g_str_equal(type, "filter-replay")) {
2573 return false;
2574 }
2575
2576 /* Memory allocation by backends needs to be done
2577 * after configure_accelerator() (due to the tcg_enabled()
2578 * checks at memory_region_init_*()).
2579 *
2580 * Also, allocation of large amounts of memory may delay
2581 * chardev initialization for too long, and trigger timeouts
2582 * on software that waits for a monitor socket to be created
2583 * (e.g. libvirt).
2584 */
2585 if (g_str_has_prefix(type, "memory-backend-")) {
2586 return false;
2587 }
2588
2589 return true;
2590 }
2591
2592
2593 /*
2594 * The remainder of object creation happens after the
2595 * creation of chardev, fsdev, net clients and device data types.
2596 */
2597 static bool object_create_delayed(const char *type, QemuOpts *opts)
2598 {
2599 return !object_create_initial(type, opts);
2600 }
2601
2602
2603 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2604 MachineClass *mc)
2605 {
2606 uint64_t sz;
2607 const char *mem_str;
2608 const ram_addr_t default_ram_size = mc->default_ram_size;
2609 QemuOpts *opts = qemu_find_opts_singleton("memory");
2610 Location loc;
2611
2612 loc_push_none(&loc);
2613 qemu_opts_loc_restore(opts);
2614
2615 sz = 0;
2616 mem_str = qemu_opt_get(opts, "size");
2617 if (mem_str) {
2618 if (!*mem_str) {
2619 error_report("missing 'size' option value");
2620 exit(EXIT_FAILURE);
2621 }
2622
2623 sz = qemu_opt_get_size(opts, "size", ram_size);
2624
2625 /* Fix up legacy suffix-less format */
2626 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2627 uint64_t overflow_check = sz;
2628
2629 sz *= MiB;
2630 if (sz / MiB != overflow_check) {
2631 error_report("too large 'size' option value");
2632 exit(EXIT_FAILURE);
2633 }
2634 }
2635 }
2636
2637 /* backward compatibility behaviour for case "-m 0" */
2638 if (sz == 0) {
2639 sz = default_ram_size;
2640 }
2641
2642 sz = QEMU_ALIGN_UP(sz, 8192);
2643 ram_size = sz;
2644 if (ram_size != sz) {
2645 error_report("ram size too large");
2646 exit(EXIT_FAILURE);
2647 }
2648
2649 /* store value for the future use */
2650 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2651 *maxram_size = ram_size;
2652
2653 if (qemu_opt_get(opts, "maxmem")) {
2654 uint64_t slots;
2655
2656 sz = qemu_opt_get_size(opts, "maxmem", 0);
2657 slots = qemu_opt_get_number(opts, "slots", 0);
2658 if (sz < ram_size) {
2659 error_report("invalid value of -m option maxmem: "
2660 "maximum memory size (0x%" PRIx64 ") must be at least "
2661 "the initial memory size (0x" RAM_ADDR_FMT ")",
2662 sz, ram_size);
2663 exit(EXIT_FAILURE);
2664 } else if (slots && sz == ram_size) {
2665 error_report("invalid value of -m option maxmem: "
2666 "memory slots were specified but maximum memory size "
2667 "(0x%" PRIx64 ") is equal to the initial memory size "
2668 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2669 exit(EXIT_FAILURE);
2670 }
2671
2672 *maxram_size = sz;
2673 *ram_slots = slots;
2674 } else if (qemu_opt_get(opts, "slots")) {
2675 error_report("invalid -m option value: missing 'maxmem' option");
2676 exit(EXIT_FAILURE);
2677 }
2678
2679 loc_pop(&loc);
2680 }
2681
2682 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2683 {
2684 GlobalProperty *g;
2685
2686 g = g_malloc0(sizeof(*g));
2687 g->driver = qemu_opt_get(opts, "driver");
2688 g->property = qemu_opt_get(opts, "property");
2689 g->value = qemu_opt_get(opts, "value");
2690 qdev_prop_register_global(g);
2691 return 0;
2692 }
2693
2694 static int qemu_read_default_config_file(void)
2695 {
2696 int ret;
2697
2698 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2699 if (ret < 0 && ret != -ENOENT) {
2700 return ret;
2701 }
2702
2703 return 0;
2704 }
2705
2706 static void user_register_global_props(void)
2707 {
2708 qemu_opts_foreach(qemu_find_opts("global"),
2709 global_init_func, NULL, NULL);
2710 }
2711
2712 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2713 {
2714 configure_icount(opts, errp);
2715 return 0;
2716 }
2717
2718 static int accelerator_set_property(void *opaque,
2719 const char *name, const char *value,
2720 Error **errp)
2721 {
2722 return object_parse_property_opt(opaque, name, value, "accel", errp);
2723 }
2724
2725 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2726 {
2727 bool *p_init_failed = opaque;
2728 const char *acc = qemu_opt_get(opts, "accel");
2729 AccelClass *ac = accel_find(acc);
2730 AccelState *accel;
2731 int ret;
2732
2733 if (!ac) {
2734 *p_init_failed = true;
2735 error_report("invalid accelerator %s", acc);
2736 return 0;
2737 }
2738 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2739 object_apply_compat_props(OBJECT(accel));
2740 qemu_opt_foreach(opts, accelerator_set_property,
2741 accel,
2742 &error_fatal);
2743
2744 ret = accel_init_machine(accel, current_machine);
2745 if (ret < 0) {
2746 *p_init_failed = true;
2747 error_report("failed to initialize %s: %s",
2748 acc, strerror(-ret));
2749 return 0;
2750 }
2751
2752 return 1;
2753 }
2754
2755 static void configure_accelerators(const char *progname)
2756 {
2757 const char *accel;
2758 bool init_failed = false;
2759
2760 qemu_opts_foreach(qemu_find_opts("icount"),
2761 do_configure_icount, NULL, &error_fatal);
2762
2763 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2764 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2765 char **accel_list, **tmp;
2766
2767 if (accel == NULL) {
2768 /* Select the default accelerator */
2769 bool have_tcg = accel_find("tcg");
2770 bool have_kvm = accel_find("kvm");
2771
2772 if (have_tcg && have_kvm) {
2773 if (g_str_has_suffix(progname, "kvm")) {
2774 /* If the program name ends with "kvm", we prefer KVM */
2775 accel = "kvm:tcg";
2776 } else {
2777 accel = "tcg:kvm";
2778 }
2779 } else if (have_kvm) {
2780 accel = "kvm";
2781 } else if (have_tcg) {
2782 accel = "tcg";
2783 } else {
2784 error_report("No accelerator selected and"
2785 " no default accelerator available");
2786 exit(1);
2787 }
2788 }
2789 accel_list = g_strsplit(accel, ":", 0);
2790
2791 for (tmp = accel_list; *tmp; tmp++) {
2792 /*
2793 * Filter invalid accelerators here, to prevent obscenities
2794 * such as "-machine accel=tcg,,thread=single".
2795 */
2796 if (accel_find(*tmp)) {
2797 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2798 } else {
2799 init_failed = true;
2800 error_report("invalid accelerator %s", *tmp);
2801 }
2802 }
2803 g_strfreev(accel_list);
2804 } else {
2805 if (accel != NULL) {
2806 error_report("The -accel and \"-machine accel=\" options are incompatible");
2807 exit(1);
2808 }
2809 }
2810
2811 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2812 do_configure_accelerator, &init_failed, &error_fatal)) {
2813 if (!init_failed) {
2814 error_report("no accelerator found");
2815 }
2816 exit(1);
2817 }
2818
2819 if (init_failed) {
2820 AccelClass *ac = ACCEL_GET_CLASS(current_machine->accelerator);
2821 error_report("falling back to %s", ac->name);
2822 }
2823
2824 if (use_icount && !(tcg_enabled() || qtest_enabled())) {
2825 error_report("-icount is not allowed with hardware virtualization");
2826 exit(1);
2827 }
2828 }
2829
2830 int main(int argc, char **argv, char **envp)
2831 {
2832 int i;
2833 int snapshot, linux_boot;
2834 const char *initrd_filename;
2835 const char *kernel_filename, *kernel_cmdline;
2836 const char *boot_order = NULL;
2837 const char *boot_once = NULL;
2838 DisplayState *ds;
2839 QemuOpts *opts, *machine_opts;
2840 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2841 QemuOptsList *olist;
2842 int optind;
2843 const char *optarg;
2844 const char *loadvm = NULL;
2845 MachineClass *machine_class;
2846 const char *cpu_option;
2847 const char *vga_model = NULL;
2848 const char *qtest_chrdev = NULL;
2849 const char *qtest_log = NULL;
2850 const char *incoming = NULL;
2851 bool userconfig = true;
2852 bool nographic = false;
2853 int display_remote = 0;
2854 const char *log_mask = NULL;
2855 const char *log_file = NULL;
2856 char *trace_file = NULL;
2857 ram_addr_t maxram_size;
2858 uint64_t ram_slots = 0;
2859 FILE *vmstate_dump_file = NULL;
2860 Error *main_loop_err = NULL;
2861 Error *err = NULL;
2862 bool list_data_dirs = false;
2863 char *dir, **dirs;
2864 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2865 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2866
2867 os_set_line_buffering();
2868
2869 error_init(argv[0]);
2870 module_call_init(MODULE_INIT_TRACE);
2871
2872 qemu_init_cpu_list();
2873 qemu_init_cpu_loop();
2874
2875 qemu_mutex_lock_iothread();
2876
2877 atexit(qemu_run_exit_notifiers);
2878 qemu_init_exec_dir(argv[0]);
2879
2880 module_call_init(MODULE_INIT_QOM);
2881
2882 qemu_add_opts(&qemu_drive_opts);
2883 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2884 qemu_add_drive_opts(&qemu_common_drive_opts);
2885 qemu_add_drive_opts(&qemu_drive_opts);
2886 qemu_add_drive_opts(&bdrv_runtime_opts);
2887 qemu_add_opts(&qemu_chardev_opts);
2888 qemu_add_opts(&qemu_device_opts);
2889 qemu_add_opts(&qemu_netdev_opts);
2890 qemu_add_opts(&qemu_nic_opts);
2891 qemu_add_opts(&qemu_net_opts);
2892 qemu_add_opts(&qemu_rtc_opts);
2893 qemu_add_opts(&qemu_global_opts);
2894 qemu_add_opts(&qemu_mon_opts);
2895 qemu_add_opts(&qemu_trace_opts);
2896 qemu_plugin_add_opts();
2897 qemu_add_opts(&qemu_option_rom_opts);
2898 qemu_add_opts(&qemu_machine_opts);
2899 qemu_add_opts(&qemu_accel_opts);
2900 qemu_add_opts(&qemu_mem_opts);
2901 qemu_add_opts(&qemu_smp_opts);
2902 qemu_add_opts(&qemu_boot_opts);
2903 qemu_add_opts(&qemu_add_fd_opts);
2904 qemu_add_opts(&qemu_object_opts);
2905 qemu_add_opts(&qemu_tpmdev_opts);
2906 qemu_add_opts(&qemu_realtime_opts);
2907 qemu_add_opts(&qemu_overcommit_opts);
2908 qemu_add_opts(&qemu_msg_opts);
2909 qemu_add_opts(&qemu_name_opts);
2910 qemu_add_opts(&qemu_numa_opts);
2911 qemu_add_opts(&qemu_icount_opts);
2912 qemu_add_opts(&qemu_semihosting_config_opts);
2913 qemu_add_opts(&qemu_fw_cfg_opts);
2914 module_call_init(MODULE_INIT_OPTS);
2915
2916 runstate_init();
2917 precopy_infrastructure_init();
2918 postcopy_infrastructure_init();
2919 monitor_init_globals();
2920
2921 if (qcrypto_init(&err) < 0) {
2922 error_reportf_err(err, "cannot initialize crypto: ");
2923 exit(1);
2924 }
2925
2926 QTAILQ_INIT(&vm_change_state_head);
2927 os_setup_early_signal_handling();
2928
2929 cpu_option = NULL;
2930 snapshot = 0;
2931
2932 nb_nics = 0;
2933
2934 bdrv_init_with_whitelist();
2935
2936 autostart = 1;
2937
2938 /* first pass of option parsing */
2939 optind = 1;
2940 while (optind < argc) {
2941 if (argv[optind][0] != '-') {
2942 /* disk image */
2943 optind++;
2944 } else {
2945 const QEMUOption *popt;
2946
2947 popt = lookup_opt(argc, argv, &optarg, &optind);
2948 switch (popt->index) {
2949 case QEMU_OPTION_nouserconfig:
2950 userconfig = false;
2951 break;
2952 }
2953 }
2954 }
2955
2956 if (userconfig) {
2957 if (qemu_read_default_config_file() < 0) {
2958 exit(1);
2959 }
2960 }
2961
2962 /* second pass of option parsing */
2963 optind = 1;
2964 for(;;) {
2965 if (optind >= argc)
2966 break;
2967 if (argv[optind][0] != '-') {
2968 loc_set_cmdline(argv, optind, 1);
2969 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2970 } else {
2971 const QEMUOption *popt;
2972
2973 popt = lookup_opt(argc, argv, &optarg, &optind);
2974 if (!(popt->arch_mask & arch_type)) {
2975 error_report("Option not supported for this target");
2976 exit(1);
2977 }
2978 switch(popt->index) {
2979 case QEMU_OPTION_cpu:
2980 /* hw initialization will check this */
2981 cpu_option = optarg;
2982 break;
2983 case QEMU_OPTION_hda:
2984 case QEMU_OPTION_hdb:
2985 case QEMU_OPTION_hdc:
2986 case QEMU_OPTION_hdd:
2987 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2988 HD_OPTS);
2989 break;
2990 case QEMU_OPTION_blockdev:
2991 {
2992 Visitor *v;
2993 BlockdevOptionsQueueEntry *bdo;
2994
2995 v = qobject_input_visitor_new_str(optarg, "driver",
2996 &error_fatal);
2997
2998 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2999 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3000 &error_fatal);
3001 visit_free(v);
3002 loc_save(&bdo->loc);
3003 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3004 break;
3005 }
3006 case QEMU_OPTION_drive:
3007 if (drive_def(optarg) == NULL) {
3008 exit(1);
3009 }
3010 break;
3011 case QEMU_OPTION_set:
3012 if (qemu_set_option(optarg) != 0)
3013 exit(1);
3014 break;
3015 case QEMU_OPTION_global:
3016 if (qemu_global_option(optarg) != 0)
3017 exit(1);
3018 break;
3019 case QEMU_OPTION_mtdblock:
3020 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3021 break;
3022 case QEMU_OPTION_sd:
3023 drive_add(IF_SD, -1, optarg, SD_OPTS);
3024 break;
3025 case QEMU_OPTION_pflash:
3026 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3027 break;
3028 case QEMU_OPTION_snapshot:
3029 {
3030 Error *blocker = NULL;
3031 snapshot = 1;
3032 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3033 "-snapshot");
3034 replay_add_blocker(blocker);
3035 }
3036 break;
3037 case QEMU_OPTION_numa:
3038 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3039 optarg, true);
3040 if (!opts) {
3041 exit(1);
3042 }
3043 break;
3044 case QEMU_OPTION_display:
3045 parse_display(optarg);
3046 break;
3047 case QEMU_OPTION_nographic:
3048 olist = qemu_find_opts("machine");
3049 qemu_opts_parse_noisily(olist, "graphics=off", false);
3050 nographic = true;
3051 dpy.type = DISPLAY_TYPE_NONE;
3052 break;
3053 case QEMU_OPTION_curses:
3054 #ifdef CONFIG_CURSES
3055 dpy.type = DISPLAY_TYPE_CURSES;
3056 #else
3057 error_report("curses or iconv support is disabled");
3058 exit(1);
3059 #endif
3060 break;
3061 case QEMU_OPTION_portrait:
3062 graphic_rotate = 90;
3063 break;
3064 case QEMU_OPTION_rotate:
3065 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3066 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3067 graphic_rotate != 180 && graphic_rotate != 270) {
3068 error_report("only 90, 180, 270 deg rotation is available");
3069 exit(1);
3070 }
3071 break;
3072 case QEMU_OPTION_kernel:
3073 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3074 &error_abort);
3075 break;
3076 case QEMU_OPTION_initrd:
3077 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3078 &error_abort);
3079 break;
3080 case QEMU_OPTION_append:
3081 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3082 &error_abort);
3083 break;
3084 case QEMU_OPTION_dtb:
3085 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3086 &error_abort);
3087 break;
3088 case QEMU_OPTION_cdrom:
3089 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3090 break;
3091 case QEMU_OPTION_boot:
3092 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3093 optarg, true);
3094 if (!opts) {
3095 exit(1);
3096 }
3097 break;
3098 case QEMU_OPTION_fda:
3099 case QEMU_OPTION_fdb:
3100 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3101 optarg, FD_OPTS);
3102 break;
3103 case QEMU_OPTION_no_fd_bootchk:
3104 fd_bootchk = 0;
3105 break;
3106 case QEMU_OPTION_netdev:
3107 default_net = 0;
3108 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3109 exit(1);
3110 }
3111 break;
3112 case QEMU_OPTION_nic:
3113 default_net = 0;
3114 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3115 exit(1);
3116 }
3117 break;
3118 case QEMU_OPTION_net:
3119 default_net = 0;
3120 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3121 exit(1);
3122 }
3123 break;
3124 #ifdef CONFIG_LIBISCSI
3125 case QEMU_OPTION_iscsi:
3126 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3127 optarg, false);
3128 if (!opts) {
3129 exit(1);
3130 }
3131 break;
3132 #endif
3133 case QEMU_OPTION_audio_help:
3134 audio_legacy_help();
3135 exit (0);
3136 break;
3137 case QEMU_OPTION_audiodev:
3138 audio_parse_option(optarg);
3139 break;
3140 case QEMU_OPTION_soundhw:
3141 select_soundhw (optarg);
3142 break;
3143 case QEMU_OPTION_h:
3144 help(0);
3145 break;
3146 case QEMU_OPTION_version:
3147 version();
3148 exit(0);
3149 break;
3150 case QEMU_OPTION_m:
3151 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3152 optarg, true);
3153 if (!opts) {
3154 exit(EXIT_FAILURE);
3155 }
3156 break;
3157 #ifdef CONFIG_TPM
3158 case QEMU_OPTION_tpmdev:
3159 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3160 exit(1);
3161 }
3162 break;
3163 #endif
3164 case QEMU_OPTION_mempath:
3165 mem_path = optarg;
3166 break;
3167 case QEMU_OPTION_mem_prealloc:
3168 mem_prealloc = 1;
3169 break;
3170 case QEMU_OPTION_d:
3171 log_mask = optarg;
3172 break;
3173 case QEMU_OPTION_D:
3174 log_file = optarg;
3175 break;
3176 case QEMU_OPTION_DFILTER:
3177 qemu_set_dfilter_ranges(optarg, &error_fatal);
3178 break;
3179 case QEMU_OPTION_seed:
3180 qemu_guest_random_seed_main(optarg, &error_fatal);
3181 break;
3182 case QEMU_OPTION_s:
3183 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3184 break;
3185 case QEMU_OPTION_gdb:
3186 add_device_config(DEV_GDB, optarg);
3187 break;
3188 case QEMU_OPTION_L:
3189 if (is_help_option(optarg)) {
3190 list_data_dirs = true;
3191 } else {
3192 qemu_add_data_dir(optarg);
3193 }
3194 break;
3195 case QEMU_OPTION_bios:
3196 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3197 &error_abort);
3198 break;
3199 case QEMU_OPTION_singlestep:
3200 singlestep = 1;
3201 break;
3202 case QEMU_OPTION_S:
3203 autostart = 0;
3204 break;
3205 case QEMU_OPTION_k:
3206 keyboard_layout = optarg;
3207 break;
3208 case QEMU_OPTION_vga:
3209 vga_model = optarg;
3210 default_vga = 0;
3211 break;
3212 case QEMU_OPTION_g:
3213 {
3214 const char *p;
3215 int w, h, depth;
3216 p = optarg;
3217 w = strtol(p, (char **)&p, 10);
3218 if (w <= 0) {
3219 graphic_error:
3220 error_report("invalid resolution or depth");
3221 exit(1);
3222 }
3223 if (*p != 'x')
3224 goto graphic_error;
3225 p++;
3226 h = strtol(p, (char **)&p, 10);
3227 if (h <= 0)
3228 goto graphic_error;
3229 if (*p == 'x') {
3230 p++;
3231 depth = strtol(p, (char **)&p, 10);
3232 if (depth != 1 && depth != 2 && depth != 4 &&
3233 depth != 8 && depth != 15 && depth != 16 &&
3234 depth != 24 && depth != 32)
3235 goto graphic_error;
3236 } else if (*p == '\0') {
3237 depth = graphic_depth;
3238 } else {
3239 goto graphic_error;
3240 }
3241
3242 graphic_width = w;
3243 graphic_height = h;
3244 graphic_depth = depth;
3245 }
3246 break;
3247 case QEMU_OPTION_echr:
3248 {
3249 char *r;
3250 term_escape_char = strtol(optarg, &r, 0);
3251 if (r == optarg)
3252 printf("Bad argument to echr\n");
3253 break;
3254 }
3255 case QEMU_OPTION_monitor:
3256 default_monitor = 0;
3257 if (strncmp(optarg, "none", 4)) {
3258 monitor_parse(optarg, "readline", false);
3259 }
3260 break;
3261 case QEMU_OPTION_qmp:
3262 monitor_parse(optarg, "control", false);
3263 default_monitor = 0;
3264 break;
3265 case QEMU_OPTION_qmp_pretty:
3266 monitor_parse(optarg, "control", true);
3267 default_monitor = 0;
3268 break;
3269 case QEMU_OPTION_mon:
3270 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3271 true);
3272 if (!opts) {
3273 exit(1);
3274 }
3275 default_monitor = 0;
3276 break;
3277 case QEMU_OPTION_chardev:
3278 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3279 optarg, true);
3280 if (!opts) {
3281 exit(1);
3282 }
3283 break;
3284 case QEMU_OPTION_fsdev:
3285 olist = qemu_find_opts("fsdev");
3286 if (!olist) {
3287 error_report("fsdev support is disabled");
3288 exit(1);
3289 }
3290 opts = qemu_opts_parse_noisily(olist, optarg, true);
3291 if (!opts) {
3292 exit(1);
3293 }
3294 break;
3295 case QEMU_OPTION_virtfs: {
3296 QemuOpts *fsdev;
3297 QemuOpts *device;
3298 const char *writeout, *sock_fd, *socket, *path, *security_model,
3299 *multidevs;
3300
3301 olist = qemu_find_opts("virtfs");
3302 if (!olist) {
3303 error_report("virtfs support is disabled");
3304 exit(1);
3305 }
3306 opts = qemu_opts_parse_noisily(olist, optarg, true);
3307 if (!opts) {
3308 exit(1);
3309 }
3310
3311 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3312 qemu_opt_get(opts, "mount_tag") == NULL) {
3313 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3314 exit(1);
3315 }
3316 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3317 qemu_opts_id(opts) ?:
3318 qemu_opt_get(opts, "mount_tag"),
3319 1, NULL);
3320 if (!fsdev) {
3321 error_report("duplicate or invalid fsdev id: %s",
3322 qemu_opt_get(opts, "mount_tag"));
3323 exit(1);
3324 }
3325
3326 writeout = qemu_opt_get(opts, "writeout");
3327 if (writeout) {
3328 #ifdef CONFIG_SYNC_FILE_RANGE
3329 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3330 #else
3331 error_report("writeout=immediate not supported "
3332 "on this platform");
3333 exit(1);
3334 #endif
3335 }
3336 qemu_opt_set(fsdev, "fsdriver",
3337 qemu_opt_get(opts, "fsdriver"), &error_abort);
3338 path = qemu_opt_get(opts, "path");
3339 if (path) {
3340 qemu_opt_set(fsdev, "path", path, &error_abort);
3341 }
3342 security_model = qemu_opt_get(opts, "security_model");
3343 if (security_model) {
3344 qemu_opt_set(fsdev, "security_model", security_model,
3345 &error_abort);
3346 }
3347 socket = qemu_opt_get(opts, "socket");
3348 if (socket) {
3349 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3350 }
3351 sock_fd = qemu_opt_get(opts, "sock_fd");
3352 if (sock_fd) {
3353 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3354 }
3355
3356 qemu_opt_set_bool(fsdev, "readonly",
3357 qemu_opt_get_bool(opts, "readonly", 0),
3358 &error_abort);
3359 multidevs = qemu_opt_get(opts, "multidevs");
3360 if (multidevs) {
3361 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3362 }
3363 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3364 &error_abort);
3365 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3366 qemu_opt_set(device, "fsdev",
3367 qemu_opts_id(fsdev), &error_abort);
3368 qemu_opt_set(device, "mount_tag",
3369 qemu_opt_get(opts, "mount_tag"), &error_abort);
3370 break;
3371 }
3372 case QEMU_OPTION_serial:
3373 add_device_config(DEV_SERIAL, optarg);
3374 default_serial = 0;
3375 if (strncmp(optarg, "mon:", 4) == 0) {
3376 default_monitor = 0;
3377 }
3378 break;
3379 case QEMU_OPTION_watchdog:
3380 if (watchdog) {
3381 error_report("only one watchdog option may be given");
3382 return 1;
3383 }
3384 watchdog = optarg;
3385 break;
3386 case QEMU_OPTION_watchdog_action:
3387 if (select_watchdog_action(optarg) == -1) {
3388 error_report("unknown -watchdog-action parameter");
3389 exit(1);
3390 }
3391 break;
3392 case QEMU_OPTION_parallel:
3393 add_device_config(DEV_PARALLEL, optarg);
3394 default_parallel = 0;
3395 if (strncmp(optarg, "mon:", 4) == 0) {
3396 default_monitor = 0;
3397 }
3398 break;
3399 case QEMU_OPTION_debugcon:
3400 add_device_config(DEV_DEBUGCON, optarg);
3401 break;
3402 case QEMU_OPTION_loadvm:
3403 loadvm = optarg;
3404 break;
3405 case QEMU_OPTION_full_screen:
3406 dpy.has_full_screen = true;
3407 dpy.full_screen = true;
3408 break;
3409 case QEMU_OPTION_alt_grab:
3410 alt_grab = 1;
3411 break;
3412 case QEMU_OPTION_ctrl_grab:
3413 ctrl_grab = 1;
3414 break;
3415 case QEMU_OPTION_no_quit:
3416 dpy.has_window_close = true;
3417 dpy.window_close = false;
3418 break;
3419 case QEMU_OPTION_sdl:
3420 #ifdef CONFIG_SDL
3421 dpy.type = DISPLAY_TYPE_SDL;
3422 break;
3423 #else
3424 error_report("SDL support is disabled");
3425 exit(1);
3426 #endif
3427 case QEMU_OPTION_pidfile:
3428 pid_file = optarg;
3429 break;
3430 case QEMU_OPTION_win2k_hack:
3431 win2k_install_hack = 1;
3432 break;
3433 case QEMU_OPTION_acpitable:
3434 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3435 optarg, true);
3436 if (!opts) {
3437 exit(1);
3438 }
3439 acpi_table_add(opts, &error_fatal);
3440 break;
3441 case QEMU_OPTION_smbios:
3442 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3443 optarg, false);
3444 if (!opts) {
3445 exit(1);
3446 }
3447 smbios_entry_add(opts, &error_fatal);
3448 break;
3449 case QEMU_OPTION_fwcfg:
3450 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3451 optarg, true);
3452 if (opts == NULL) {
3453 exit(1);
3454 }
3455 break;
3456 case QEMU_OPTION_preconfig:
3457 preconfig_exit_requested = false;
3458 break;
3459 case QEMU_OPTION_enable_kvm:
3460 olist = qemu_find_opts("machine");
3461 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3462 break;
3463 case QEMU_OPTION_M:
3464 case QEMU_OPTION_machine:
3465 olist = qemu_find_opts("machine");
3466 opts = qemu_opts_parse_noisily(olist, optarg, true);
3467 if (!opts) {
3468 exit(1);
3469 }
3470 break;
3471 case QEMU_OPTION_no_kvm:
3472 olist = qemu_find_opts("machine");
3473 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3474 break;
3475 case QEMU_OPTION_accel:
3476 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3477 optarg, true);
3478 optarg = qemu_opt_get(accel_opts, "accel");
3479 if (!optarg || is_help_option(optarg)) {
3480 printf("Accelerators supported in QEMU binary:\n");
3481 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3482 false);
3483 for (el = accel_list; el; el = el->next) {
3484 gchar *typename = g_strdup(object_class_get_name(
3485 OBJECT_CLASS(el->data)));
3486 /* omit qtest which is used for tests only */
3487 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3488 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3489 gchar **optname = g_strsplit(typename,
3490 ACCEL_CLASS_SUFFIX, 0);
3491 printf("%s\n", optname[0]);
3492 g_free(optname);
3493 }
3494 g_free(typename);
3495 }
3496 g_slist_free(accel_list);
3497 exit(0);
3498 }
3499 if (optarg && strchr(optarg, ':')) {
3500 error_report("Don't use ':' with -accel, "
3501 "use -M accel=... for now instead");
3502 exit(1);
3503 }
3504 break;
3505 case QEMU_OPTION_usb:
3506 olist = qemu_find_opts("machine");
3507 qemu_opts_parse_noisily(olist, "usb=on", false);
3508 break;
3509 case QEMU_OPTION_usbdevice:
3510 error_report("'-usbdevice' is deprecated, please use "
3511 "'-device usb-...' instead");
3512 olist = qemu_find_opts("machine");
3513 qemu_opts_parse_noisily(olist, "usb=on", false);
3514 add_device_config(DEV_USB, optarg);
3515 break;
3516 case QEMU_OPTION_device:
3517 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3518 optarg, true)) {
3519 exit(1);
3520 }
3521 break;
3522 case QEMU_OPTION_smp:
3523 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3524 optarg, true)) {
3525 exit(1);
3526 }
3527 break;
3528 case QEMU_OPTION_vnc:
3529 vnc_parse(optarg, &error_fatal);
3530 break;
3531 case QEMU_OPTION_no_acpi:
3532 acpi_enabled = 0;
3533 break;
3534 case QEMU_OPTION_no_hpet:
3535 no_hpet = 1;
3536 break;
3537 case QEMU_OPTION_no_reboot:
3538 no_reboot = 1;
3539 break;
3540 case QEMU_OPTION_no_shutdown:
3541 no_shutdown = 1;
3542 break;
3543 case QEMU_OPTION_show_cursor:
3544 cursor_hide = 0;
3545 break;
3546 case QEMU_OPTION_uuid:
3547 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3548 error_report("failed to parse UUID string: wrong format");
3549 exit(1);
3550 }
3551 qemu_uuid_set = true;
3552 break;
3553 case QEMU_OPTION_option_rom:
3554 if (nb_option_roms >= MAX_OPTION_ROMS) {
3555 error_report("too many option ROMs");
3556 exit(1);
3557 }
3558 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3559 optarg, true);
3560 if (!opts) {
3561 exit(1);
3562 }
3563 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3564 option_rom[nb_option_roms].bootindex =
3565 qemu_opt_get_number(opts, "bootindex", -1);
3566 if (!option_rom[nb_option_roms].name) {
3567 error_report("Option ROM file is not specified");
3568 exit(1);
3569 }
3570 nb_option_roms++;
3571 break;
3572 case QEMU_OPTION_semihosting:
3573 qemu_semihosting_enable();
3574 break;
3575 case QEMU_OPTION_semihosting_config:
3576 if (qemu_semihosting_config_options(optarg) != 0) {
3577 exit(1);
3578 }
3579 break;
3580 case QEMU_OPTION_name:
3581 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3582 optarg, true);
3583 if (!opts) {
3584 exit(1);
3585 }
3586 break;
3587 case QEMU_OPTION_prom_env:
3588 if (nb_prom_envs >= MAX_PROM_ENVS) {
3589 error_report("too many prom variables");
3590 exit(1);
3591 }
3592 prom_envs[nb_prom_envs] = optarg;
3593 nb_prom_envs++;
3594 break;
3595 case QEMU_OPTION_old_param:
3596 old_param = 1;
3597 break;
3598 case QEMU_OPTION_rtc:
3599 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3600 false);
3601 if (!opts) {
3602 exit(1);
3603 }
3604 break;
3605 case QEMU_OPTION_tb_size:
3606 #ifndef CONFIG_TCG
3607 error_report("TCG is disabled");
3608 exit(1);
3609 #endif
3610 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3611 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3612 break;
3613 case QEMU_OPTION_icount:
3614 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3615 optarg, true);
3616 if (!icount_opts) {
3617 exit(1);
3618 }
3619 break;
3620 case QEMU_OPTION_incoming:
3621 if (!incoming) {
3622 runstate_set(RUN_STATE_INMIGRATE);
3623 }
3624 incoming = optarg;
3625 break;
3626 case QEMU_OPTION_only_migratable:
3627 only_migratable = 1;
3628 break;
3629 case QEMU_OPTION_nodefaults:
3630 has_defaults = 0;
3631 break;
3632 case QEMU_OPTION_xen_domid:
3633 if (!(xen_available())) {
3634 error_report("Option not supported for this target");
3635 exit(1);
3636 }
3637 xen_domid = atoi(optarg);
3638 break;
3639 case QEMU_OPTION_xen_attach:
3640 if (!(xen_available())) {
3641 error_report("Option not supported for this target");
3642 exit(1);
3643 }
3644 xen_mode = XEN_ATTACH;
3645 break;
3646 case QEMU_OPTION_xen_domid_restrict:
3647 if (!(xen_available())) {
3648 error_report("Option not supported for this target");
3649 exit(1);
3650 }
3651 xen_domid_restrict = true;
3652 break;
3653 case QEMU_OPTION_trace:
3654 g_free(trace_file);
3655 trace_file = trace_opt_parse(optarg);
3656 break;
3657 case QEMU_OPTION_plugin:
3658 qemu_plugin_opt_parse(optarg, &plugin_list);
3659 break;
3660 case QEMU_OPTION_readconfig:
3661 {
3662 int ret = qemu_read_config_file(optarg);
3663 if (ret < 0) {
3664 error_report("read config %s: %s", optarg,
3665 strerror(-ret));
3666 exit(1);
3667 }
3668 break;
3669 }
3670 case QEMU_OPTION_spice:
3671 olist = qemu_find_opts("spice");
3672 if (!olist) {
3673 error_report("spice support is disabled");
3674 exit(1);
3675 }
3676 opts = qemu_opts_parse_noisily(olist, optarg, false);
3677 if (!opts) {
3678 exit(1);
3679 }
3680 display_remote++;
3681 break;
3682 case QEMU_OPTION_writeconfig:
3683 {
3684 FILE *fp;
3685 if (strcmp(optarg, "-") == 0) {
3686 fp = stdout;
3687 } else {
3688 fp = fopen(optarg, "w");
3689 if (fp == NULL) {
3690 error_report("open %s: %s", optarg,
3691 strerror(errno));
3692 exit(1);
3693 }
3694 }
3695 qemu_config_write(fp);
3696 if (fp != stdout) {
3697 fclose(fp);
3698 }
3699 break;
3700 }
3701 case QEMU_OPTION_qtest:
3702 qtest_chrdev = optarg;
3703 break;
3704 case QEMU_OPTION_qtest_log:
3705 qtest_log = optarg;
3706 break;
3707 case QEMU_OPTION_sandbox:
3708 olist = qemu_find_opts("sandbox");
3709 if (!olist) {
3710 #ifndef CONFIG_SECCOMP
3711 error_report("-sandbox support is not enabled "
3712 "in this QEMU binary");
3713 #endif
3714 exit(1);
3715 }
3716
3717 opts = qemu_opts_parse_noisily(olist, optarg, true);
3718 if (!opts) {
3719 exit(1);
3720 }
3721 break;
3722 case QEMU_OPTION_add_fd:
3723 #ifndef _WIN32
3724 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3725 optarg, false);
3726 if (!opts) {
3727 exit(1);
3728 }
3729 #else
3730 error_report("File descriptor passing is disabled on this "
3731 "platform");
3732 exit(1);
3733 #endif
3734 break;
3735 case QEMU_OPTION_object:
3736 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3737 optarg, true);
3738 if (!opts) {
3739 exit(1);
3740 }
3741 break;
3742 case QEMU_OPTION_realtime:
3743 warn_report("'-realtime mlock=...' is deprecated, please use "
3744 "'-overcommit mem-lock=...' instead");
3745 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3746 optarg, false);
3747 if (!opts) {
3748 exit(1);
3749 }
3750 /* Don't override the -overcommit option if set */
3751 enable_mlock = enable_mlock ||
3752 qemu_opt_get_bool(opts, "mlock", true);
3753 break;
3754 case QEMU_OPTION_overcommit:
3755 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3756 optarg, false);
3757 if (!opts) {
3758 exit(1);
3759 }
3760 /* Don't override the -realtime option if set */
3761 enable_mlock = enable_mlock ||
3762 qemu_opt_get_bool(opts, "mem-lock", false);
3763 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3764 break;
3765 case QEMU_OPTION_msg:
3766 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3767 false);
3768 if (!opts) {
3769 exit(1);
3770 }
3771 configure_msg(opts);
3772 break;
3773 case QEMU_OPTION_dump_vmstate:
3774 if (vmstate_dump_file) {
3775 error_report("only one '-dump-vmstate' "
3776 "option may be given");
3777 exit(1);
3778 }
3779 vmstate_dump_file = fopen(optarg, "w");
3780 if (vmstate_dump_file == NULL) {
3781 error_report("open %s: %s", optarg, strerror(errno));
3782 exit(1);
3783 }
3784 break;
3785 case QEMU_OPTION_enable_sync_profile:
3786 qsp_enable();
3787 break;
3788 case QEMU_OPTION_nouserconfig:
3789 /* Nothing to be parsed here. Especially, do not error out below. */
3790 break;
3791 default:
3792 if (os_parse_cmd_args(popt->index, optarg)) {
3793 error_report("Option not supported in this build");
3794 exit(1);
3795 }
3796 }
3797 }
3798 }
3799 /*
3800 * Clear error location left behind by the loop.
3801 * Best done right after the loop. Do not insert code here!
3802 */
3803 loc_set_none();
3804
3805 user_register_global_props();
3806
3807 replay_configure(icount_opts);
3808
3809 if (incoming && !preconfig_exit_requested) {
3810 error_report("'preconfig' and 'incoming' options are "
3811 "mutually exclusive");
3812 exit(EXIT_FAILURE);
3813 }
3814
3815 configure_rtc(qemu_find_opts_singleton("rtc"));
3816
3817 machine_class = select_machine();
3818 object_set_machine_compat_props(machine_class->compat_props);
3819
3820 set_memory_options(&ram_slots, &maxram_size, machine_class);
3821
3822 os_daemonize();
3823 rcu_disable_atfork();
3824
3825 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3826 error_reportf_err(err, "cannot create PID file: ");
3827 exit(1);
3828 }
3829
3830 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3831 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3832
3833 if (qemu_init_main_loop(&main_loop_err)) {
3834 error_report_err(main_loop_err);
3835 exit(1);
3836 }
3837
3838 #ifdef CONFIG_SECCOMP
3839 olist = qemu_find_opts_err("sandbox", NULL);
3840 if (olist) {
3841 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3842 }
3843 #endif
3844
3845 qemu_opts_foreach(qemu_find_opts("name"),
3846 parse_name, NULL, &error_fatal);
3847
3848 #ifndef _WIN32
3849 qemu_opts_foreach(qemu_find_opts("add-fd"),
3850 parse_add_fd, NULL, &error_fatal);
3851
3852 qemu_opts_foreach(qemu_find_opts("add-fd"),
3853 cleanup_add_fd, NULL, &error_fatal);
3854 #endif
3855
3856 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3857 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3858 exit(0);
3859 }
3860 object_property_add_child(object_get_root(), "machine",
3861 OBJECT(current_machine), &error_abort);
3862 object_property_add_child(container_get(OBJECT(current_machine),
3863 "/unattached"),
3864 "sysbus", OBJECT(sysbus_get_default()),
3865 NULL);
3866
3867 if (machine_class->minimum_page_bits) {
3868 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3869 /* This would be a board error: specifying a minimum smaller than
3870 * a target's compile-time fixed setting.
3871 */
3872 g_assert_not_reached();
3873 }
3874 }
3875
3876 cpu_exec_init_all();
3877
3878 if (machine_class->hw_version) {
3879 qemu_set_hw_version(machine_class->hw_version);
3880 }
3881
3882 if (cpu_option && is_help_option(cpu_option)) {
3883 list_cpus(cpu_option);
3884 exit(0);
3885 }
3886
3887 if (!trace_init_backends()) {
3888 exit(1);
3889 }
3890 trace_init_file(trace_file);
3891
3892 /* Open the logfile at this point and set the log mask if necessary.
3893 */
3894 if (log_file) {
3895 qemu_set_log_filename(log_file, &error_fatal);
3896 }
3897
3898 if (log_mask) {
3899 int mask;
3900 mask = qemu_str_to_log_mask(log_mask);
3901 if (!mask) {
3902 qemu_print_log_usage(stdout);
3903 exit(1);
3904 }
3905 qemu_set_log(mask);
3906 } else {
3907 qemu_set_log(0);
3908 }
3909
3910 /* add configured firmware directories */
3911 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3912 for (i = 0; dirs[i] != NULL; i++) {
3913 qemu_add_data_dir(dirs[i]);
3914 }
3915 g_strfreev(dirs);
3916
3917 /* try to find datadir relative to the executable path */
3918 dir = os_find_datadir();
3919 qemu_add_data_dir(dir);
3920 g_free(dir);
3921
3922 /* add the datadir specified when building */
3923 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3924
3925 /* -L help lists the data directories and exits. */
3926 if (list_data_dirs) {
3927 for (i = 0; i < data_dir_idx; i++) {
3928 printf("%s\n", data_dir[i]);
3929 }
3930 exit(0);
3931 }
3932
3933 /* machine_class: default to UP */
3934 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3935 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3936 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3937
3938 /* default to machine_class->default_cpus */
3939 current_machine->smp.cpus = machine_class->default_cpus;
3940 current_machine->smp.max_cpus = machine_class->default_cpus;
3941 current_machine->smp.cores = 1;
3942 current_machine->smp.threads = 1;
3943
3944 machine_class->smp_parse(current_machine,
3945 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3946
3947 /* sanity-check smp_cpus and max_cpus against machine_class */
3948 if (current_machine->smp.cpus < machine_class->min_cpus) {
3949 error_report("Invalid SMP CPUs %d. The min CPUs "
3950 "supported by machine '%s' is %d",
3951 current_machine->smp.cpus,
3952 machine_class->name, machine_class->min_cpus);
3953 exit(1);
3954 }
3955 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3956 error_report("Invalid SMP CPUs %d. The max CPUs "
3957 "supported by machine '%s' is %d",
3958 current_machine->smp.max_cpus,
3959 machine_class->name, machine_class->max_cpus);
3960 exit(1);
3961 }
3962
3963 /*
3964 * Get the default machine options from the machine if it is not already
3965 * specified either by the configuration file or by the command line.
3966 */
3967 if (machine_class->default_machine_opts) {
3968 qemu_opts_set_defaults(qemu_find_opts("machine"),
3969 machine_class->default_machine_opts, 0);
3970 }
3971
3972 /* process plugin before CPUs are created, but once -smp has been parsed */
3973 if (qemu_plugin_load_list(&plugin_list)) {
3974 exit(1);
3975 }
3976
3977 qemu_opts_foreach(qemu_find_opts("device"),
3978 default_driver_check, NULL, NULL);
3979 qemu_opts_foreach(qemu_find_opts("global"),
3980 default_driver_check, NULL, NULL);
3981
3982 if (!vga_model && !default_vga) {
3983 vga_interface_type = VGA_DEVICE;
3984 }
3985 if (!has_defaults || machine_class->no_serial) {
3986 default_serial = 0;
3987 }
3988 if (!has_defaults || machine_class->no_parallel) {
3989 default_parallel = 0;
3990 }
3991 if (!has_defaults || machine_class->no_floppy) {
3992 default_floppy = 0;
3993 }
3994 if (!has_defaults || machine_class->no_cdrom) {
3995 default_cdrom = 0;
3996 }
3997 if (!has_defaults || machine_class->no_sdcard) {
3998 default_sdcard = 0;
3999 }
4000 if (!has_defaults) {
4001 default_monitor = 0;
4002 default_net = 0;
4003 default_vga = 0;
4004 }
4005
4006 if (is_daemonized()) {
4007 if (!preconfig_exit_requested) {
4008 error_report("'preconfig' and 'daemonize' options are "
4009 "mutually exclusive");
4010 exit(EXIT_FAILURE);
4011 }
4012
4013 /* According to documentation and historically, -nographic redirects
4014 * serial port, parallel port and monitor to stdio, which does not work
4015 * with -daemonize. We can redirect these to null instead, but since
4016 * -nographic is legacy, let's just error out.
4017 * We disallow -nographic only if all other ports are not redirected
4018 * explicitly, to not break existing legacy setups which uses
4019 * -nographic _and_ redirects all ports explicitly - this is valid
4020 * usage, -nographic is just a no-op in this case.
4021 */
4022 if (nographic
4023 && (default_parallel || default_serial || default_monitor)) {
4024 error_report("-nographic cannot be used with -daemonize");
4025 exit(1);
4026 }
4027 #ifdef CONFIG_CURSES
4028 if (dpy.type == DISPLAY_TYPE_CURSES) {
4029 error_report("curses display cannot be used with -daemonize");
4030 exit(1);
4031 }
4032 #endif
4033 }
4034
4035 if (nographic) {
4036 if (default_parallel)
4037 add_device_config(DEV_PARALLEL, "null");
4038 if (default_serial && default_monitor) {
4039 add_device_config(DEV_SERIAL, "mon:stdio");
4040 } else {
4041 if (default_serial)
4042 add_device_config(DEV_SERIAL, "stdio");
4043 if (default_monitor)
4044 monitor_parse("stdio", "readline", false);
4045 }
4046 } else {
4047 if (default_serial)
4048 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4049 if (default_parallel)
4050 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4051 if (default_monitor)
4052 monitor_parse("vc:80Cx24C", "readline", false);
4053 }
4054
4055 #if defined(CONFIG_VNC)
4056 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4057 display_remote++;
4058 }
4059 #endif
4060 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4061 if (!qemu_display_find_default(&dpy)) {
4062 dpy.type = DISPLAY_TYPE_NONE;
4063 #if defined(CONFIG_VNC)
4064 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4065 #endif
4066 }
4067 }
4068 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4069 dpy.type = DISPLAY_TYPE_NONE;
4070 }
4071
4072 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4073 error_report("-alt-grab and -ctrl-grab are only valid "
4074 "for SDL, ignoring option");
4075 }
4076 if (dpy.has_window_close &&
4077 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4078 error_report("-no-quit is only valid for GTK and SDL, "
4079 "ignoring option");
4080 }
4081
4082 qemu_display_early_init(&dpy);
4083 qemu_console_early_init();
4084
4085 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4086 #if defined(CONFIG_OPENGL)
4087 error_report("OpenGL is not supported by the display");
4088 #else
4089 error_report("OpenGL support is disabled");
4090 #endif
4091 exit(1);
4092 }
4093
4094 page_size_init();
4095 socket_init();
4096
4097 qemu_opts_foreach(qemu_find_opts("object"),
4098 user_creatable_add_opts_foreach,
4099 object_create_initial, &error_fatal);
4100
4101 qemu_opts_foreach(qemu_find_opts("chardev"),
4102 chardev_init_func, NULL, &error_fatal);
4103 /* now chardevs have been created we may have semihosting to connect */
4104 qemu_semihosting_connect_chardevs();
4105
4106 #ifdef CONFIG_VIRTFS
4107 qemu_opts_foreach(qemu_find_opts("fsdev"),
4108 fsdev_init_func, NULL, &error_fatal);
4109 #endif
4110
4111 if (qemu_opts_foreach(qemu_find_opts("device"),
4112 device_help_func, NULL, NULL)) {
4113 exit(0);
4114 }
4115
4116 /*
4117 * Note: we need to create block backends before
4118 * machine_set_property(), so machine properties can refer to
4119 * them.
4120 */
4121 configure_blockdev(&bdo_queue, machine_class, snapshot);
4122
4123 machine_opts = qemu_get_machine_opts();
4124 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4125 &error_fatal);
4126 current_machine->ram_size = ram_size;
4127 current_machine->maxram_size = maxram_size;
4128 current_machine->ram_slots = ram_slots;
4129
4130 /*
4131 * Note: uses machine properties such as kernel-irqchip, must run
4132 * after machine_set_property().
4133 */
4134 configure_accelerators(argv[0]);
4135
4136 /*
4137 * Beware, QOM objects created before this point miss global and
4138 * compat properties.
4139 *
4140 * Global properties get set up by qdev_prop_register_global(),
4141 * called from user_register_global_props(), and certain option
4142 * desugaring. Also in CPU feature desugaring (buried in
4143 * parse_cpu_option()), which happens below this point, but may
4144 * only target the CPU type, which can only be created after
4145 * parse_cpu_option() returned the type.
4146 *
4147 * Machine compat properties: object_set_machine_compat_props().
4148 * Accelerator compat props: object_set_accelerator_compat_props(),
4149 * called from configure_accelerator().
4150 */
4151
4152 if (!qtest_enabled() && machine_class->deprecation_reason) {
4153 error_report("Machine type '%s' is deprecated: %s",
4154 machine_class->name, machine_class->deprecation_reason);
4155 }
4156
4157 /*
4158 * Note: creates a QOM object, must run only after global and
4159 * compat properties have been set up.
4160 */
4161 migration_object_init();
4162
4163 if (qtest_chrdev) {
4164 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4165 }
4166
4167 machine_opts = qemu_get_machine_opts();
4168 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4169 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4170 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4171 bios_name = qemu_opt_get(machine_opts, "firmware");
4172
4173 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4174 if (opts) {
4175 boot_order = qemu_opt_get(opts, "order");
4176 if (boot_order) {
4177 validate_bootdevices(boot_order, &error_fatal);
4178 }
4179
4180 boot_once = qemu_opt_get(opts, "once");
4181 if (boot_once) {
4182 validate_bootdevices(boot_once, &error_fatal);
4183 }
4184
4185 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4186 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4187 }
4188
4189 if (!boot_order) {
4190 boot_order = machine_class->default_boot_order;
4191 }
4192
4193 if (!kernel_cmdline) {
4194 kernel_cmdline = "";
4195 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4196 }
4197
4198 linux_boot = (kernel_filename != NULL);
4199
4200 if (!linux_boot && *kernel_cmdline != '\0') {
4201 error_report("-append only allowed with -kernel option");
4202 exit(1);
4203 }
4204
4205 if (!linux_boot && initrd_filename != NULL) {
4206 error_report("-initrd only allowed with -kernel option");
4207 exit(1);
4208 }
4209
4210 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4211 /* fall back to the -kernel/-append */
4212 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4213 }
4214
4215 /* spice needs the timers to be initialized by this point */
4216 qemu_spice_init();
4217
4218 cpu_ticks_init();
4219
4220 if (default_net) {
4221 QemuOptsList *net = qemu_find_opts("net");
4222 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4223 #ifdef CONFIG_SLIRP
4224 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4225 #endif
4226 }
4227
4228 if (net_init_clients(&err) < 0) {
4229 error_report_err(err);
4230 exit(1);
4231 }
4232
4233 qemu_opts_foreach(qemu_find_opts("object"),
4234 user_creatable_add_opts_foreach,
4235 object_create_delayed, &error_fatal);
4236
4237 tpm_init();
4238
4239 if (!xen_enabled()) {
4240 /* On 32-bit hosts, QEMU is limited by virtual address space */
4241 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4242 error_report("at most 2047 MB RAM can be simulated");
4243 exit(1);
4244 }
4245 }
4246
4247 blk_mig_init();
4248 ram_mig_init();
4249 dirty_bitmap_mig_init();
4250
4251 qemu_opts_foreach(qemu_find_opts("mon"),
4252 mon_init_func, NULL, &error_fatal);
4253
4254 /* connect semihosting console input if requested */
4255 qemu_semihosting_console_init();
4256
4257 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4258 exit(1);
4259 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4260 exit(1);
4261 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4262 exit(1);
4263
4264 /* If no default VGA is requested, the default is "none". */
4265 if (default_vga) {
4266 vga_model = get_default_vga_model(machine_class);
4267 }
4268 if (vga_model) {
4269 select_vgahw(machine_class, vga_model);
4270 }
4271
4272 if (watchdog) {
4273 i = select_watchdog(watchdog);
4274 if (i > 0)
4275 exit (i == 1 ? 1 : 0);
4276 }
4277
4278 /* This checkpoint is required by replay to separate prior clock
4279 reading from the other reads, because timer polling functions query
4280 clock values from the log. */
4281 replay_checkpoint(CHECKPOINT_INIT);
4282 qdev_machine_init();
4283
4284 current_machine->boot_order = boot_order;
4285
4286 /* parse features once if machine provides default cpu_type */
4287 current_machine->cpu_type = machine_class->default_cpu_type;
4288 if (cpu_option) {
4289 current_machine->cpu_type = parse_cpu_option(cpu_option);
4290 }
4291 parse_numa_opts(current_machine);
4292
4293 /* do monitor/qmp handling at preconfig state if requested */
4294 main_loop();
4295
4296 audio_init_audiodevs();
4297
4298 /* from here on runstate is RUN_STATE_PRELAUNCH */
4299 machine_run_board_init(current_machine);
4300
4301 realtime_init();
4302
4303 soundhw_init();
4304
4305 if (hax_enabled()) {
4306 hax_sync_vcpus();
4307 }
4308
4309 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4310 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4311
4312 /* init USB devices */
4313 if (machine_usb(current_machine)) {
4314 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4315 exit(1);
4316 }
4317
4318 /* init generic devices */
4319 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4320 qemu_opts_foreach(qemu_find_opts("device"),
4321 device_init_func, NULL, &error_fatal);
4322
4323 cpu_synchronize_all_post_init();
4324
4325 rom_reset_order_override();
4326
4327 /* Did we create any drives that we failed to create a device for? */
4328 drive_check_orphaned();
4329
4330 /* Don't warn about the default network setup that you get if
4331 * no command line -net or -netdev options are specified. There
4332 * are two cases that we would otherwise complain about:
4333 * (1) board doesn't support a NIC but the implicit "-net nic"
4334 * requested one
4335 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4336 * sets up a nic that isn't connected to anything.
4337 */
4338 if (!default_net && (!qtest_enabled() || has_defaults)) {
4339 net_check_clients();
4340 }
4341
4342 if (boot_once) {
4343 qemu_boot_set(boot_once, &error_fatal);
4344 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4345 }
4346
4347 /* init local displays */
4348 ds = init_displaystate();
4349 qemu_display_init(ds, &dpy);
4350
4351 /* must be after terminal init, SDL library changes signal handlers */
4352 os_setup_signal_handling();
4353
4354 /* init remote displays */
4355 #ifdef CONFIG_VNC
4356 qemu_opts_foreach(qemu_find_opts("vnc"),
4357 vnc_init_func, NULL, &error_fatal);
4358 #endif
4359
4360 if (using_spice) {
4361 qemu_spice_display_init();
4362 }
4363
4364 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4365 exit(1);
4366 }
4367
4368 qdev_machine_creation_done();
4369
4370 /* TODO: once all bus devices are qdevified, this should be done
4371 * when bus is created by qdev.c */
4372 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4373 qemu_run_machine_init_done_notifiers();
4374
4375 if (rom_check_and_register_reset() != 0) {
4376 error_report("rom check and register reset failed");
4377 exit(1);
4378 }
4379
4380 replay_start();
4381
4382 /* This checkpoint is required by replay to separate prior clock
4383 reading from the other reads, because timer polling functions query
4384 clock values from the log. */
4385 replay_checkpoint(CHECKPOINT_RESET);
4386 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4387 register_global_state();
4388 if (loadvm) {
4389 Error *local_err = NULL;
4390 if (load_snapshot(loadvm, &local_err) < 0) {
4391 error_report_err(local_err);
4392 autostart = 0;
4393 exit(1);
4394 }
4395 }
4396 if (replay_mode != REPLAY_MODE_NONE) {
4397 replay_vmstate_init();
4398 }
4399
4400 qdev_prop_check_globals();
4401 if (vmstate_dump_file) {
4402 /* dump and exit */
4403 dump_vmstate_json_to_file(vmstate_dump_file);
4404 return 0;
4405 }
4406
4407 if (incoming) {
4408 Error *local_err = NULL;
4409 qemu_start_incoming_migration(incoming, &local_err);
4410 if (local_err) {
4411 error_reportf_err(local_err, "-incoming %s: ", incoming);
4412 exit(1);
4413 }
4414 } else if (autostart) {
4415 vm_start();
4416 }
4417
4418 accel_setup_post(current_machine);
4419 os_setup_post();
4420
4421 main_loop();
4422
4423 gdbserver_cleanup();
4424
4425 /*
4426 * cleaning up the migration object cancels any existing migration
4427 * try to do this early so that it also stops using devices.
4428 */
4429 migration_shutdown();
4430
4431 /*
4432 * We must cancel all block jobs while the block layer is drained,
4433 * or cancelling will be affected by throttling and thus may block
4434 * for an extended period of time.
4435 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4436 * it in the drained section.
4437 * We do not need to end this section, because we do not want any
4438 * requests happening from here on anyway.
4439 */
4440 bdrv_drain_all_begin();
4441
4442 /* No more vcpu or device emulation activity beyond this point */
4443 vm_shutdown();
4444 replay_finish();
4445
4446 job_cancel_sync_all();
4447 bdrv_close_all();
4448
4449 res_free();
4450
4451 /* vhost-user must be cleaned up before chardevs. */
4452 tpm_cleanup();
4453 net_cleanup();
4454 audio_cleanup();
4455 monitor_cleanup();
4456 qemu_chr_cleanup();
4457 user_creatable_cleanup();
4458 /* TODO: unref root container, check all devices are ok */
4459
4460 return 0;
4461 }
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