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