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iotests: Test reverse sub-cluster qcow2 writes
[qemu.git] / vl.c
blob630f5c5e9cdc87eb237c7a0b8fb76fc02ee4e5be
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
38
39 #ifdef CONFIG_SDL
40 #if defined(__APPLE__) || defined(main)
41 #include <SDL.h>
42 int qemu_main(int argc, char **argv, char **envp);
43 int main(int argc, char **argv)
44 {
45 return qemu_main(argc, argv, NULL);
46 }
47 #undef main
48 #define main qemu_main
49 #endif
50 #endif /* CONFIG_SDL */
51
52 #ifdef CONFIG_COCOA
53 #undef main
54 #define main qemu_main
55 #endif /* CONFIG_COCOA */
56
57
58 #include "qemu/error-report.h"
59 #include "qemu/sockets.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "hw/bt.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/firmware/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
70 #include "hw/loader.h"
71 #include "monitor/qdev.h"
72 #include "sysemu/bt.h"
73 #include "net/net.h"
74 #include "net/slirp.h"
75 #include "monitor/monitor.h"
76 #include "ui/console.h"
77 #include "ui/input.h"
78 #include "sysemu/sysemu.h"
79 #include "sysemu/numa.h"
80 #include "exec/gdbstub.h"
81 #include "qemu/timer.h"
82 #include "chardev/char.h"
83 #include "qemu/bitmap.h"
84 #include "qemu/log.h"
85 #include "sysemu/blockdev.h"
86 #include "hw/block/block.h"
87 #include "migration/misc.h"
88 #include "migration/snapshot.h"
89 #include "migration/global_state.h"
90 #include "sysemu/tpm.h"
91 #include "sysemu/dma.h"
92 #include "hw/audio/soundhw.h"
93 #include "audio/audio.h"
94 #include "sysemu/cpus.h"
95 #include "migration/colo.h"
96 #include "migration/postcopy-ram.h"
97 #include "sysemu/kvm.h"
98 #include "sysemu/hax.h"
99 #include "qapi/qobject-input-visitor.h"
100 #include "qemu/option.h"
101 #include "qemu/config-file.h"
102 #include "qemu-options.h"
103 #include "qemu/main-loop.h"
104 #ifdef CONFIG_VIRTFS
105 #include "fsdev/qemu-fsdev.h"
106 #endif
107 #include "sysemu/qtest.h"
108
109 #include "disas/disas.h"
110
111 #include "trace-root.h"
112 #include "trace/control.h"
113 #include "qemu/queue.h"
114 #include "sysemu/arch_init.h"
115
116 #include "ui/qemu-spice.h"
117 #include "qapi/string-input-visitor.h"
118 #include "qapi/opts-visitor.h"
119 #include "qapi/clone-visitor.h"
120 #include "qom/object_interfaces.h"
121 #include "hw/semihosting/semihost.h"
122 #include "crypto/init.h"
123 #include "sysemu/replay.h"
124 #include "qapi/qapi-events-run-state.h"
125 #include "qapi/qapi-visit-block-core.h"
126 #include "qapi/qapi-visit-ui.h"
127 #include "qapi/qapi-commands-block-core.h"
128 #include "qapi/qapi-commands-run-state.h"
129 #include "qapi/qapi-commands-ui.h"
130 #include "qapi/qmp/qerror.h"
131 #include "sysemu/iothread.h"
132 #include "qemu/guest-random.h"
133
134 #define MAX_VIRTIO_CONSOLES 1
135
136 static const char *data_dir[16];
137 static int data_dir_idx;
138 const char *bios_name = NULL;
139 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
140 int display_opengl;
141 const char* keyboard_layout = NULL;
142 ram_addr_t ram_size;
143 const char *mem_path = NULL;
144 int mem_prealloc = 0; /* force preallocation of physical target memory */
145 bool enable_mlock = false;
146 bool enable_cpu_pm = false;
147 int nb_nics;
148 NICInfo nd_table[MAX_NICS];
149 int autostart;
150 static enum {
151 RTC_BASE_UTC,
152 RTC_BASE_LOCALTIME,
153 RTC_BASE_DATETIME,
154 } rtc_base_type = RTC_BASE_UTC;
155 static time_t rtc_ref_start_datetime;
156 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
157 static int rtc_host_datetime_offset = -1; /* valid & used only with
158 RTC_BASE_DATETIME */
159 QEMUClockType rtc_clock;
160 int vga_interface_type = VGA_NONE;
161 static DisplayOptions dpy;
162 static int num_serial_hds;
163 static Chardev **serial_hds;
164 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
165 int win2k_install_hack = 0;
166 int singlestep = 0;
167 int acpi_enabled = 1;
168 int no_hpet = 0;
169 int fd_bootchk = 1;
170 static int no_reboot;
171 int no_shutdown = 0;
172 int cursor_hide = 1;
173 int graphic_rotate = 0;
174 const char *watchdog;
175 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
176 int nb_option_roms;
177 int old_param = 0;
178 const char *qemu_name;
179 int alt_grab = 0;
180 int ctrl_grab = 0;
181 unsigned int nb_prom_envs = 0;
182 const char *prom_envs[MAX_PROM_ENVS];
183 int boot_menu;
184 bool boot_strict;
185 uint8_t *boot_splash_filedata;
186 int only_migratable; /* turn it off unless user states otherwise */
187 bool wakeup_suspend_enabled;
188
189 int icount_align_option;
190
191 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
192 * little-endian "wire format" described in the SMBIOS 2.6 specification.
193 */
194 QemuUUID qemu_uuid;
195 bool qemu_uuid_set;
196
197 static NotifierList exit_notifiers =
198 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
199
200 static NotifierList machine_init_done_notifiers =
201 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
202
203 bool xen_allowed;
204 uint32_t xen_domid;
205 enum xen_mode xen_mode = XEN_EMULATE;
206 bool xen_domid_restrict;
207
208 static int has_defaults = 1;
209 static int default_serial = 1;
210 static int default_parallel = 1;
211 static int default_monitor = 1;
212 static int default_floppy = 1;
213 static int default_cdrom = 1;
214 static int default_sdcard = 1;
215 static int default_vga = 1;
216 static int default_net = 1;
217
218 static struct {
219 const char *driver;
220 int *flag;
221 } default_list[] = {
222 { .driver = "isa-serial", .flag = &default_serial },
223 { .driver = "isa-parallel", .flag = &default_parallel },
224 { .driver = "isa-fdc", .flag = &default_floppy },
225 { .driver = "floppy", .flag = &default_floppy },
226 { .driver = "ide-cd", .flag = &default_cdrom },
227 { .driver = "ide-hd", .flag = &default_cdrom },
228 { .driver = "ide-drive", .flag = &default_cdrom },
229 { .driver = "scsi-cd", .flag = &default_cdrom },
230 { .driver = "scsi-hd", .flag = &default_cdrom },
231 { .driver = "VGA", .flag = &default_vga },
232 { .driver = "isa-vga", .flag = &default_vga },
233 { .driver = "cirrus-vga", .flag = &default_vga },
234 { .driver = "isa-cirrus-vga", .flag = &default_vga },
235 { .driver = "vmware-svga", .flag = &default_vga },
236 { .driver = "qxl-vga", .flag = &default_vga },
237 { .driver = "virtio-vga", .flag = &default_vga },
238 { .driver = "ati-vga", .flag = &default_vga },
239 { .driver = "vhost-user-vga", .flag = &default_vga },
240 };
241
242 static QemuOptsList qemu_rtc_opts = {
243 .name = "rtc",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
245 .merge_lists = true,
246 .desc = {
247 {
248 .name = "base",
249 .type = QEMU_OPT_STRING,
250 },{
251 .name = "clock",
252 .type = QEMU_OPT_STRING,
253 },{
254 .name = "driftfix",
255 .type = QEMU_OPT_STRING,
256 },
257 { /* end of list */ }
258 },
259 };
260
261 static QemuOptsList qemu_option_rom_opts = {
262 .name = "option-rom",
263 .implied_opt_name = "romfile",
264 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
265 .desc = {
266 {
267 .name = "bootindex",
268 .type = QEMU_OPT_NUMBER,
269 }, {
270 .name = "romfile",
271 .type = QEMU_OPT_STRING,
272 },
273 { /* end of list */ }
274 },
275 };
276
277 static QemuOptsList qemu_machine_opts = {
278 .name = "machine",
279 .implied_opt_name = "type",
280 .merge_lists = true,
281 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
282 .desc = {
283 /*
284 * no elements => accept any
285 * sanity checking will happen later
286 * when setting machine properties
287 */
288 { }
289 },
290 };
291
292 static QemuOptsList qemu_accel_opts = {
293 .name = "accel",
294 .implied_opt_name = "accel",
295 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
296 .merge_lists = true,
297 .desc = {
298 {
299 .name = "accel",
300 .type = QEMU_OPT_STRING,
301 .help = "Select the type of accelerator",
302 },
303 {
304 .name = "thread",
305 .type = QEMU_OPT_STRING,
306 .help = "Enable/disable multi-threaded TCG",
307 },
308 { /* end of list */ }
309 },
310 };
311
312 static QemuOptsList qemu_boot_opts = {
313 .name = "boot-opts",
314 .implied_opt_name = "order",
315 .merge_lists = true,
316 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
317 .desc = {
318 {
319 .name = "order",
320 .type = QEMU_OPT_STRING,
321 }, {
322 .name = "once",
323 .type = QEMU_OPT_STRING,
324 }, {
325 .name = "menu",
326 .type = QEMU_OPT_BOOL,
327 }, {
328 .name = "splash",
329 .type = QEMU_OPT_STRING,
330 }, {
331 .name = "splash-time",
332 .type = QEMU_OPT_NUMBER,
333 }, {
334 .name = "reboot-timeout",
335 .type = QEMU_OPT_NUMBER,
336 }, {
337 .name = "strict",
338 .type = QEMU_OPT_BOOL,
339 },
340 { /*End of list */ }
341 },
342 };
343
344 static QemuOptsList qemu_add_fd_opts = {
345 .name = "add-fd",
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
347 .desc = {
348 {
349 .name = "fd",
350 .type = QEMU_OPT_NUMBER,
351 .help = "file descriptor of which a duplicate is added to fd set",
352 },{
353 .name = "set",
354 .type = QEMU_OPT_NUMBER,
355 .help = "ID of the fd set to add fd to",
356 },{
357 .name = "opaque",
358 .type = QEMU_OPT_STRING,
359 .help = "free-form string used to describe fd",
360 },
361 { /* end of list */ }
362 },
363 };
364
365 static QemuOptsList qemu_object_opts = {
366 .name = "object",
367 .implied_opt_name = "qom-type",
368 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
369 .desc = {
370 { }
371 },
372 };
373
374 static QemuOptsList qemu_tpmdev_opts = {
375 .name = "tpmdev",
376 .implied_opt_name = "type",
377 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
378 .desc = {
379 /* options are defined in the TPM backends */
380 { /* end of list */ }
381 },
382 };
383
384 static QemuOptsList qemu_realtime_opts = {
385 .name = "realtime",
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
387 .desc = {
388 {
389 .name = "mlock",
390 .type = QEMU_OPT_BOOL,
391 },
392 { /* end of list */ }
393 },
394 };
395
396 static QemuOptsList qemu_overcommit_opts = {
397 .name = "overcommit",
398 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
399 .desc = {
400 {
401 .name = "mem-lock",
402 .type = QEMU_OPT_BOOL,
403 },
404 {
405 .name = "cpu-pm",
406 .type = QEMU_OPT_BOOL,
407 },
408 { /* end of list */ }
409 },
410 };
411
412 static QemuOptsList qemu_msg_opts = {
413 .name = "msg",
414 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
415 .desc = {
416 {
417 .name = "timestamp",
418 .type = QEMU_OPT_BOOL,
419 },
420 { /* end of list */ }
421 },
422 };
423
424 static QemuOptsList qemu_name_opts = {
425 .name = "name",
426 .implied_opt_name = "guest",
427 .merge_lists = true,
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
429 .desc = {
430 {
431 .name = "guest",
432 .type = QEMU_OPT_STRING,
433 .help = "Sets the name of the guest.\n"
434 "This name will be displayed in the SDL window caption.\n"
435 "The name will also be used for the VNC server",
436 }, {
437 .name = "process",
438 .type = QEMU_OPT_STRING,
439 .help = "Sets the name of the QEMU process, as shown in top etc",
440 }, {
441 .name = "debug-threads",
442 .type = QEMU_OPT_BOOL,
443 .help = "When enabled, name the individual threads; defaults off.\n"
444 "NOTE: The thread names are for debugging and not a\n"
445 "stable API.",
446 },
447 { /* End of list */ }
448 },
449 };
450
451 static QemuOptsList qemu_mem_opts = {
452 .name = "memory",
453 .implied_opt_name = "size",
454 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
455 .merge_lists = true,
456 .desc = {
457 {
458 .name = "size",
459 .type = QEMU_OPT_SIZE,
460 },
461 {
462 .name = "slots",
463 .type = QEMU_OPT_NUMBER,
464 },
465 {
466 .name = "maxmem",
467 .type = QEMU_OPT_SIZE,
468 },
469 { /* end of list */ }
470 },
471 };
472
473 static QemuOptsList qemu_icount_opts = {
474 .name = "icount",
475 .implied_opt_name = "shift",
476 .merge_lists = true,
477 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
478 .desc = {
479 {
480 .name = "shift",
481 .type = QEMU_OPT_STRING,
482 }, {
483 .name = "align",
484 .type = QEMU_OPT_BOOL,
485 }, {
486 .name = "sleep",
487 .type = QEMU_OPT_BOOL,
488 }, {
489 .name = "rr",
490 .type = QEMU_OPT_STRING,
491 }, {
492 .name = "rrfile",
493 .type = QEMU_OPT_STRING,
494 }, {
495 .name = "rrsnapshot",
496 .type = QEMU_OPT_STRING,
497 },
498 { /* end of list */ }
499 },
500 };
501
502 static QemuOptsList qemu_fw_cfg_opts = {
503 .name = "fw_cfg",
504 .implied_opt_name = "name",
505 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
506 .desc = {
507 {
508 .name = "name",
509 .type = QEMU_OPT_STRING,
510 .help = "Sets the fw_cfg name of the blob to be inserted",
511 }, {
512 .name = "file",
513 .type = QEMU_OPT_STRING,
514 .help = "Sets the name of the file from which "
515 "the fw_cfg blob will be loaded",
516 }, {
517 .name = "string",
518 .type = QEMU_OPT_STRING,
519 .help = "Sets content of the blob to be inserted from a string",
520 },
521 { /* end of list */ }
522 },
523 };
524
525 /**
526 * Get machine options
527 *
528 * Returns: machine options (never null).
529 */
530 QemuOpts *qemu_get_machine_opts(void)
531 {
532 return qemu_find_opts_singleton("machine");
533 }
534
535 const char *qemu_get_vm_name(void)
536 {
537 return qemu_name;
538 }
539
540 static void res_free(void)
541 {
542 g_free(boot_splash_filedata);
543 boot_splash_filedata = NULL;
544 }
545
546 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
547 {
548 const char *driver = qemu_opt_get(opts, "driver");
549 int i;
550
551 if (!driver)
552 return 0;
553 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
554 if (strcmp(default_list[i].driver, driver) != 0)
555 continue;
556 *(default_list[i].flag) = 0;
557 }
558 return 0;
559 }
560
561 /***********************************************************/
562 /* QEMU state */
563
564 static RunState current_run_state = RUN_STATE_PRECONFIG;
565
566 /* We use RUN_STATE__MAX but any invalid value will do */
567 static RunState vmstop_requested = RUN_STATE__MAX;
568 static QemuMutex vmstop_lock;
569
570 typedef struct {
571 RunState from;
572 RunState to;
573 } RunStateTransition;
574
575 static const RunStateTransition runstate_transitions_def[] = {
576 /* from -> to */
577 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
578 /* Early switch to inmigrate state to allow -incoming CLI option work
579 * as it used to. TODO: delay actual switching to inmigrate state to
580 * the point after machine is built and remove this hack.
581 */
582 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
583
584 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
585 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
586 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
587
588 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
589 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
590 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
591 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
592 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
593 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
594 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
595 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
596 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
597 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
598 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
599 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
600
601 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
602 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
604
605 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
606 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
607 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
608
609 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
610 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
612 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
613 { RUN_STATE_PAUSED, RUN_STATE_COLO},
614
615 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
616 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
617 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
618
619 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
620 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
621 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
622
623 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
624 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
625 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
626 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
627 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
628
629 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
630 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
631
632 { RUN_STATE_COLO, RUN_STATE_RUNNING },
633
634 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
635 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
636 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
637 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
638 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
640 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
641 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
642 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
643 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
644 { RUN_STATE_RUNNING, RUN_STATE_COLO},
645
646 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
647
648 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
649 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
650 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
651
652 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
653 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
654 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
655 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
656 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
657 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
658
659 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
660 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
661 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
662 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
663
664 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
665 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
666 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
667
668 { RUN_STATE__MAX, RUN_STATE__MAX },
669 };
670
671 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
672
673 bool runstate_check(RunState state)
674 {
675 return current_run_state == state;
676 }
677
678 bool runstate_store(char *str, size_t size)
679 {
680 const char *state = RunState_str(current_run_state);
681 size_t len = strlen(state) + 1;
682
683 if (len > size) {
684 return false;
685 }
686 memcpy(str, state, len);
687 return true;
688 }
689
690 static void runstate_init(void)
691 {
692 const RunStateTransition *p;
693
694 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
695 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
696 runstate_valid_transitions[p->from][p->to] = true;
697 }
698
699 qemu_mutex_init(&vmstop_lock);
700 }
701
702 /* This function will abort() on invalid state transitions */
703 void runstate_set(RunState new_state)
704 {
705 assert(new_state < RUN_STATE__MAX);
706
707 trace_runstate_set(current_run_state, RunState_str(current_run_state),
708 new_state, RunState_str(new_state));
709
710 if (current_run_state == new_state) {
711 return;
712 }
713
714 if (!runstate_valid_transitions[current_run_state][new_state]) {
715 error_report("invalid runstate transition: '%s' -> '%s'",
716 RunState_str(current_run_state),
717 RunState_str(new_state));
718 abort();
719 }
720
721 current_run_state = new_state;
722 }
723
724 int runstate_is_running(void)
725 {
726 return runstate_check(RUN_STATE_RUNNING);
727 }
728
729 bool runstate_needs_reset(void)
730 {
731 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
732 runstate_check(RUN_STATE_SHUTDOWN);
733 }
734
735 StatusInfo *qmp_query_status(Error **errp)
736 {
737 StatusInfo *info = g_malloc0(sizeof(*info));
738
739 info->running = runstate_is_running();
740 info->singlestep = singlestep;
741 info->status = current_run_state;
742
743 return info;
744 }
745
746 bool qemu_vmstop_requested(RunState *r)
747 {
748 qemu_mutex_lock(&vmstop_lock);
749 *r = vmstop_requested;
750 vmstop_requested = RUN_STATE__MAX;
751 qemu_mutex_unlock(&vmstop_lock);
752 return *r < RUN_STATE__MAX;
753 }
754
755 void qemu_system_vmstop_request_prepare(void)
756 {
757 qemu_mutex_lock(&vmstop_lock);
758 }
759
760 void qemu_system_vmstop_request(RunState state)
761 {
762 vmstop_requested = state;
763 qemu_mutex_unlock(&vmstop_lock);
764 qemu_notify_event();
765 }
766
767 /***********************************************************/
768 /* RTC reference time/date access */
769 static time_t qemu_ref_timedate(QEMUClockType clock)
770 {
771 time_t value = qemu_clock_get_ms(clock) / 1000;
772 switch (clock) {
773 case QEMU_CLOCK_REALTIME:
774 value -= rtc_realtime_clock_offset;
775 /* fall through */
776 case QEMU_CLOCK_VIRTUAL:
777 value += rtc_ref_start_datetime;
778 break;
779 case QEMU_CLOCK_HOST:
780 if (rtc_base_type == RTC_BASE_DATETIME) {
781 value -= rtc_host_datetime_offset;
782 }
783 break;
784 default:
785 assert(0);
786 }
787 return value;
788 }
789
790 void qemu_get_timedate(struct tm *tm, int offset)
791 {
792 time_t ti = qemu_ref_timedate(rtc_clock);
793
794 ti += offset;
795
796 switch (rtc_base_type) {
797 case RTC_BASE_DATETIME:
798 case RTC_BASE_UTC:
799 gmtime_r(&ti, tm);
800 break;
801 case RTC_BASE_LOCALTIME:
802 localtime_r(&ti, tm);
803 break;
804 }
805 }
806
807 int qemu_timedate_diff(struct tm *tm)
808 {
809 time_t seconds;
810
811 switch (rtc_base_type) {
812 case RTC_BASE_DATETIME:
813 case RTC_BASE_UTC:
814 seconds = mktimegm(tm);
815 break;
816 case RTC_BASE_LOCALTIME:
817 {
818 struct tm tmp = *tm;
819 tmp.tm_isdst = -1; /* use timezone to figure it out */
820 seconds = mktime(&tmp);
821 break;
822 }
823 default:
824 abort();
825 }
826
827 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
828 }
829
830 static void configure_rtc_base_datetime(const char *startdate)
831 {
832 time_t rtc_start_datetime;
833 struct tm tm;
834
835 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
836 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
837 /* OK */
838 } else if (sscanf(startdate, "%d-%d-%d",
839 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
840 tm.tm_hour = 0;
841 tm.tm_min = 0;
842 tm.tm_sec = 0;
843 } else {
844 goto date_fail;
845 }
846 tm.tm_year -= 1900;
847 tm.tm_mon--;
848 rtc_start_datetime = mktimegm(&tm);
849 if (rtc_start_datetime == -1) {
850 date_fail:
851 error_report("invalid datetime format");
852 error_printf("valid formats: "
853 "'2006-06-17T16:01:21' or '2006-06-17'\n");
854 exit(1);
855 }
856 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
857 rtc_ref_start_datetime = rtc_start_datetime;
858 }
859
860 static void configure_rtc(QemuOpts *opts)
861 {
862 const char *value;
863
864 /* Set defaults */
865 rtc_clock = QEMU_CLOCK_HOST;
866 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
867 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
868
869 value = qemu_opt_get(opts, "base");
870 if (value) {
871 if (!strcmp(value, "utc")) {
872 rtc_base_type = RTC_BASE_UTC;
873 } else if (!strcmp(value, "localtime")) {
874 Error *blocker = NULL;
875 rtc_base_type = RTC_BASE_LOCALTIME;
876 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
877 "-rtc base=localtime");
878 replay_add_blocker(blocker);
879 } else {
880 rtc_base_type = RTC_BASE_DATETIME;
881 configure_rtc_base_datetime(value);
882 }
883 }
884 value = qemu_opt_get(opts, "clock");
885 if (value) {
886 if (!strcmp(value, "host")) {
887 rtc_clock = QEMU_CLOCK_HOST;
888 } else if (!strcmp(value, "rt")) {
889 rtc_clock = QEMU_CLOCK_REALTIME;
890 } else if (!strcmp(value, "vm")) {
891 rtc_clock = QEMU_CLOCK_VIRTUAL;
892 } else {
893 error_report("invalid option value '%s'", value);
894 exit(1);
895 }
896 }
897 value = qemu_opt_get(opts, "driftfix");
898 if (value) {
899 if (!strcmp(value, "slew")) {
900 static GlobalProperty slew_lost_ticks = {
901 .driver = "mc146818rtc",
902 .property = "lost_tick_policy",
903 .value = "slew",
904 };
905
906 qdev_prop_register_global(&slew_lost_ticks);
907 } else if (!strcmp(value, "none")) {
908 /* discard is default */
909 } else {
910 error_report("invalid option value '%s'", value);
911 exit(1);
912 }
913 }
914 }
915
916 /***********************************************************/
917 /* Bluetooth support */
918 static int nb_hcis;
919 static int cur_hci;
920 static struct HCIInfo *hci_table[MAX_NICS];
921
922 struct HCIInfo *qemu_next_hci(void)
923 {
924 if (cur_hci == nb_hcis)
925 return &null_hci;
926
927 return hci_table[cur_hci++];
928 }
929
930 static int bt_hci_parse(const char *str)
931 {
932 struct HCIInfo *hci;
933 bdaddr_t bdaddr;
934
935 if (nb_hcis >= MAX_NICS) {
936 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
937 return -1;
938 }
939
940 hci = hci_init(str);
941 if (!hci)
942 return -1;
943
944 bdaddr.b[0] = 0x52;
945 bdaddr.b[1] = 0x54;
946 bdaddr.b[2] = 0x00;
947 bdaddr.b[3] = 0x12;
948 bdaddr.b[4] = 0x34;
949 bdaddr.b[5] = 0x56 + nb_hcis;
950 hci->bdaddr_set(hci, bdaddr.b);
951
952 hci_table[nb_hcis++] = hci;
953
954 return 0;
955 }
956
957 static void bt_vhci_add(int vlan_id)
958 {
959 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
960
961 if (!vlan->slave)
962 warn_report("adding a VHCI to an empty scatternet %i",
963 vlan_id);
964
965 bt_vhci_init(bt_new_hci(vlan));
966 }
967
968 static struct bt_device_s *bt_device_add(const char *opt)
969 {
970 struct bt_scatternet_s *vlan;
971 int vlan_id = 0;
972 char *endp = strstr(opt, ",vlan=");
973 int len = (endp ? endp - opt : strlen(opt)) + 1;
974 char devname[10];
975
976 pstrcpy(devname, MIN(sizeof(devname), len), opt);
977
978 if (endp) {
979 vlan_id = strtol(endp + 6, &endp, 0);
980 if (*endp) {
981 error_report("unrecognised bluetooth vlan Id");
982 return 0;
983 }
984 }
985
986 vlan = qemu_find_bt_vlan(vlan_id);
987
988 if (!vlan->slave)
989 warn_report("adding a slave device to an empty scatternet %i",
990 vlan_id);
991
992 if (!strcmp(devname, "keyboard"))
993 return bt_keyboard_init(vlan);
994
995 error_report("unsupported bluetooth device '%s'", devname);
996 return 0;
997 }
998
999 static int bt_parse(const char *opt)
1000 {
1001 const char *endp, *p;
1002 int vlan;
1003
1004 if (strstart(opt, "hci", &endp)) {
1005 if (!*endp || *endp == ',') {
1006 if (*endp)
1007 if (!strstart(endp, ",vlan=", 0))
1008 opt = endp + 1;
1009
1010 return bt_hci_parse(opt);
1011 }
1012 } else if (strstart(opt, "vhci", &endp)) {
1013 if (!*endp || *endp == ',') {
1014 if (*endp) {
1015 if (strstart(endp, ",vlan=", &p)) {
1016 vlan = strtol(p, (char **) &endp, 0);
1017 if (*endp) {
1018 error_report("bad scatternet '%s'", p);
1019 return 1;
1020 }
1021 } else {
1022 error_report("bad parameter '%s'", endp + 1);
1023 return 1;
1024 }
1025 } else
1026 vlan = 0;
1027
1028 bt_vhci_add(vlan);
1029 return 0;
1030 }
1031 } else if (strstart(opt, "device:", &endp))
1032 return !bt_device_add(endp);
1033
1034 error_report("bad bluetooth parameter '%s'", opt);
1035 return 1;
1036 }
1037
1038 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1039 {
1040 const char *proc_name;
1041
1042 if (qemu_opt_get(opts, "debug-threads")) {
1043 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1044 }
1045 qemu_name = qemu_opt_get(opts, "guest");
1046
1047 proc_name = qemu_opt_get(opts, "process");
1048 if (proc_name) {
1049 os_set_proc_name(proc_name);
1050 }
1051
1052 return 0;
1053 }
1054
1055 bool defaults_enabled(void)
1056 {
1057 return has_defaults;
1058 }
1059
1060 #ifndef _WIN32
1061 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1062 {
1063 int fd, dupfd, flags;
1064 int64_t fdset_id;
1065 const char *fd_opaque = NULL;
1066 AddfdInfo *fdinfo;
1067
1068 fd = qemu_opt_get_number(opts, "fd", -1);
1069 fdset_id = qemu_opt_get_number(opts, "set", -1);
1070 fd_opaque = qemu_opt_get(opts, "opaque");
1071
1072 if (fd < 0) {
1073 error_setg(errp, "fd option is required and must be non-negative");
1074 return -1;
1075 }
1076
1077 if (fd <= STDERR_FILENO) {
1078 error_setg(errp, "fd cannot be a standard I/O stream");
1079 return -1;
1080 }
1081
1082 /*
1083 * All fds inherited across exec() necessarily have FD_CLOEXEC
1084 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1085 */
1086 flags = fcntl(fd, F_GETFD);
1087 if (flags == -1 || (flags & FD_CLOEXEC)) {
1088 error_setg(errp, "fd is not valid or already in use");
1089 return -1;
1090 }
1091
1092 if (fdset_id < 0) {
1093 error_setg(errp, "set option is required and must be non-negative");
1094 return -1;
1095 }
1096
1097 #ifdef F_DUPFD_CLOEXEC
1098 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1099 #else
1100 dupfd = dup(fd);
1101 if (dupfd != -1) {
1102 qemu_set_cloexec(dupfd);
1103 }
1104 #endif
1105 if (dupfd == -1) {
1106 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1107 return -1;
1108 }
1109
1110 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1111 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1112 &error_abort);
1113 g_free(fdinfo);
1114
1115 return 0;
1116 }
1117
1118 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1119 {
1120 int fd;
1121
1122 fd = qemu_opt_get_number(opts, "fd", -1);
1123 close(fd);
1124
1125 return 0;
1126 }
1127 #endif
1128
1129 /***********************************************************/
1130 /* QEMU Block devices */
1131
1132 #define HD_OPTS "media=disk"
1133 #define CDROM_OPTS "media=cdrom"
1134 #define FD_OPTS ""
1135 #define PFLASH_OPTS ""
1136 #define MTD_OPTS ""
1137 #define SD_OPTS ""
1138
1139 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1140 {
1141 BlockInterfaceType *block_default_type = opaque;
1142
1143 return drive_new(opts, *block_default_type, errp) == NULL;
1144 }
1145
1146 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1147 {
1148 if (qemu_opt_get(opts, "snapshot") == NULL) {
1149 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1150 }
1151 return 0;
1152 }
1153
1154 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1155 int index, const char *optstr)
1156 {
1157 QemuOpts *opts;
1158 DriveInfo *dinfo;
1159
1160 if (!enable || drive_get_by_index(type, index)) {
1161 return;
1162 }
1163
1164 opts = drive_add(type, index, NULL, optstr);
1165 if (snapshot) {
1166 drive_enable_snapshot(NULL, opts, NULL);
1167 }
1168
1169 dinfo = drive_new(opts, type, &error_abort);
1170 dinfo->is_default = true;
1171
1172 }
1173
1174 typedef struct BlockdevOptionsQueueEntry {
1175 BlockdevOptions *bdo;
1176 Location loc;
1177 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1178 } BlockdevOptionsQueueEntry;
1179
1180 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1181
1182 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1183 MachineClass *machine_class, int snapshot)
1184 {
1185 /*
1186 * If the currently selected machine wishes to override the
1187 * units-per-bus property of its default HBA interface type, do so
1188 * now.
1189 */
1190 if (machine_class->units_per_default_bus) {
1191 override_max_devs(machine_class->block_default_type,
1192 machine_class->units_per_default_bus);
1193 }
1194
1195 /* open the virtual block devices */
1196 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1197 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1198
1199 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1200 loc_push_restore(&bdo->loc);
1201 qmp_blockdev_add(bdo->bdo, &error_fatal);
1202 loc_pop(&bdo->loc);
1203 qapi_free_BlockdevOptions(bdo->bdo);
1204 g_free(bdo);
1205 }
1206 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1207 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1208 NULL, NULL);
1209 }
1210 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1211 &machine_class->block_default_type, &error_fatal)) {
1212 /* We printed help */
1213 exit(0);
1214 }
1215
1216 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1217 CDROM_OPTS);
1218 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1219 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1220
1221 }
1222
1223 static QemuOptsList qemu_smp_opts = {
1224 .name = "smp-opts",
1225 .implied_opt_name = "cpus",
1226 .merge_lists = true,
1227 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1228 .desc = {
1229 {
1230 .name = "cpus",
1231 .type = QEMU_OPT_NUMBER,
1232 }, {
1233 .name = "sockets",
1234 .type = QEMU_OPT_NUMBER,
1235 }, {
1236 .name = "dies",
1237 .type = QEMU_OPT_NUMBER,
1238 }, {
1239 .name = "cores",
1240 .type = QEMU_OPT_NUMBER,
1241 }, {
1242 .name = "threads",
1243 .type = QEMU_OPT_NUMBER,
1244 }, {
1245 .name = "maxcpus",
1246 .type = QEMU_OPT_NUMBER,
1247 },
1248 { /*End of list */ }
1249 },
1250 };
1251
1252 static void realtime_init(void)
1253 {
1254 if (enable_mlock) {
1255 if (os_mlock() < 0) {
1256 error_report("locking memory failed");
1257 exit(1);
1258 }
1259 }
1260 }
1261
1262
1263 static void configure_msg(QemuOpts *opts)
1264 {
1265 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1266 }
1267
1268
1269 /* Now we still need this for compatibility with XEN. */
1270 bool has_igd_gfx_passthru;
1271 static void igd_gfx_passthru(void)
1272 {
1273 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1274 }
1275
1276 /***********************************************************/
1277 /* USB devices */
1278
1279 static int usb_device_add(const char *devname)
1280 {
1281 USBDevice *dev = NULL;
1282
1283 if (!machine_usb(current_machine)) {
1284 return -1;
1285 }
1286
1287 dev = usbdevice_create(devname);
1288 if (!dev)
1289 return -1;
1290
1291 return 0;
1292 }
1293
1294 static int usb_parse(const char *cmdline)
1295 {
1296 int r;
1297 r = usb_device_add(cmdline);
1298 if (r < 0) {
1299 error_report("could not add USB device '%s'", cmdline);
1300 }
1301 return r;
1302 }
1303
1304 /***********************************************************/
1305 /* machine registration */
1306
1307 MachineState *current_machine;
1308
1309 static MachineClass *find_machine(const char *name, GSList *machines)
1310 {
1311 GSList *el;
1312
1313 for (el = machines; el; el = el->next) {
1314 MachineClass *mc = el->data;
1315
1316 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1317 return mc;
1318 }
1319 }
1320
1321 return NULL;
1322 }
1323
1324 static MachineClass *find_default_machine(GSList *machines)
1325 {
1326 GSList *el;
1327
1328 for (el = machines; el; el = el->next) {
1329 MachineClass *mc = el->data;
1330
1331 if (mc->is_default) {
1332 return mc;
1333 }
1334 }
1335
1336 return NULL;
1337 }
1338
1339 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1340 {
1341 ObjectProperty *prop;
1342 ObjectPropertyIterator iter;
1343
1344 if (!qemu_opt_has_help_opt(opts)) {
1345 return 0;
1346 }
1347
1348 object_property_iter_init(&iter, OBJECT(machine));
1349 while ((prop = object_property_iter_next(&iter))) {
1350 if (!prop->set) {
1351 continue;
1352 }
1353
1354 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1355 prop->name, prop->type);
1356 if (prop->description) {
1357 printf(" (%s)\n", prop->description);
1358 } else {
1359 printf("\n");
1360 }
1361 }
1362
1363 return 1;
1364 }
1365
1366 struct VMChangeStateEntry {
1367 VMChangeStateHandler *cb;
1368 void *opaque;
1369 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1370 int priority;
1371 };
1372
1373 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1374
1375 /**
1376 * qemu_add_vm_change_state_handler_prio:
1377 * @cb: the callback to invoke
1378 * @opaque: user data passed to the callback
1379 * @priority: low priorities execute first when the vm runs and the reverse is
1380 * true when the vm stops
1381 *
1382 * Register a callback function that is invoked when the vm starts or stops
1383 * running.
1384 *
1385 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1386 */
1387 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1388 VMChangeStateHandler *cb, void *opaque, int priority)
1389 {
1390 VMChangeStateEntry *e;
1391 VMChangeStateEntry *other;
1392
1393 e = g_malloc0(sizeof(*e));
1394 e->cb = cb;
1395 e->opaque = opaque;
1396 e->priority = priority;
1397
1398 /* Keep list sorted in ascending priority order */
1399 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1400 if (priority < other->priority) {
1401 QTAILQ_INSERT_BEFORE(other, e, entries);
1402 return e;
1403 }
1404 }
1405
1406 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1407 return e;
1408 }
1409
1410 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1411 void *opaque)
1412 {
1413 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1414 }
1415
1416 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1417 {
1418 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1419 g_free(e);
1420 }
1421
1422 void vm_state_notify(int running, RunState state)
1423 {
1424 VMChangeStateEntry *e, *next;
1425
1426 trace_vm_state_notify(running, state, RunState_str(state));
1427
1428 if (running) {
1429 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1430 e->cb(e->opaque, running, state);
1431 }
1432 } else {
1433 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1434 e->cb(e->opaque, running, state);
1435 }
1436 }
1437 }
1438
1439 static ShutdownCause reset_requested;
1440 static ShutdownCause shutdown_requested;
1441 static int shutdown_signal;
1442 static pid_t shutdown_pid;
1443 static int powerdown_requested;
1444 static int debug_requested;
1445 static int suspend_requested;
1446 static bool preconfig_exit_requested = true;
1447 static WakeupReason wakeup_reason;
1448 static NotifierList powerdown_notifiers =
1449 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1450 static NotifierList suspend_notifiers =
1451 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1452 static NotifierList wakeup_notifiers =
1453 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1454 static NotifierList shutdown_notifiers =
1455 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1456 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1457
1458 ShutdownCause qemu_shutdown_requested_get(void)
1459 {
1460 return shutdown_requested;
1461 }
1462
1463 ShutdownCause qemu_reset_requested_get(void)
1464 {
1465 return reset_requested;
1466 }
1467
1468 static int qemu_shutdown_requested(void)
1469 {
1470 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1471 }
1472
1473 static void qemu_kill_report(void)
1474 {
1475 if (!qtest_driver() && shutdown_signal) {
1476 if (shutdown_pid == 0) {
1477 /* This happens for eg ^C at the terminal, so it's worth
1478 * avoiding printing an odd message in that case.
1479 */
1480 error_report("terminating on signal %d", shutdown_signal);
1481 } else {
1482 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1483
1484 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1485 shutdown_signal, shutdown_pid,
1486 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1487 g_free(shutdown_cmd);
1488 }
1489 shutdown_signal = 0;
1490 }
1491 }
1492
1493 static ShutdownCause qemu_reset_requested(void)
1494 {
1495 ShutdownCause r = reset_requested;
1496
1497 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1498 reset_requested = SHUTDOWN_CAUSE_NONE;
1499 return r;
1500 }
1501 return SHUTDOWN_CAUSE_NONE;
1502 }
1503
1504 static int qemu_suspend_requested(void)
1505 {
1506 int r = suspend_requested;
1507 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1508 suspend_requested = 0;
1509 return r;
1510 }
1511 return false;
1512 }
1513
1514 static WakeupReason qemu_wakeup_requested(void)
1515 {
1516 return wakeup_reason;
1517 }
1518
1519 static int qemu_powerdown_requested(void)
1520 {
1521 int r = powerdown_requested;
1522 powerdown_requested = 0;
1523 return r;
1524 }
1525
1526 static int qemu_debug_requested(void)
1527 {
1528 int r = debug_requested;
1529 debug_requested = 0;
1530 return r;
1531 }
1532
1533 void qemu_exit_preconfig_request(void)
1534 {
1535 preconfig_exit_requested = true;
1536 }
1537
1538 /*
1539 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1540 */
1541 void qemu_system_reset(ShutdownCause reason)
1542 {
1543 MachineClass *mc;
1544
1545 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1546
1547 cpu_synchronize_all_states();
1548
1549 if (mc && mc->reset) {
1550 mc->reset(current_machine);
1551 } else {
1552 qemu_devices_reset();
1553 }
1554 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1555 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1556 }
1557 cpu_synchronize_all_post_reset();
1558 }
1559
1560 /*
1561 * Wake the VM after suspend.
1562 */
1563 static void qemu_system_wakeup(void)
1564 {
1565 MachineClass *mc;
1566
1567 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1568
1569 if (mc && mc->wakeup) {
1570 mc->wakeup(current_machine);
1571 }
1572 }
1573
1574 void qemu_system_guest_panicked(GuestPanicInformation *info)
1575 {
1576 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1577
1578 if (current_cpu) {
1579 current_cpu->crash_occurred = true;
1580 }
1581 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1582 !!info, info);
1583 vm_stop(RUN_STATE_GUEST_PANICKED);
1584 if (!no_shutdown) {
1585 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1586 !!info, info);
1587 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1588 }
1589
1590 if (info) {
1591 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1592 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1593 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1594 info->u.hyper_v.arg1,
1595 info->u.hyper_v.arg2,
1596 info->u.hyper_v.arg3,
1597 info->u.hyper_v.arg4,
1598 info->u.hyper_v.arg5);
1599 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1600 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1601 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1602 info->u.s390.core,
1603 S390CrashReason_str(info->u.s390.reason),
1604 info->u.s390.psw_mask,
1605 info->u.s390.psw_addr);
1606 }
1607 qapi_free_GuestPanicInformation(info);
1608 }
1609 }
1610
1611 void qemu_system_reset_request(ShutdownCause reason)
1612 {
1613 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1614 shutdown_requested = reason;
1615 } else {
1616 reset_requested = reason;
1617 }
1618 cpu_stop_current();
1619 qemu_notify_event();
1620 }
1621
1622 static void qemu_system_suspend(void)
1623 {
1624 pause_all_vcpus();
1625 notifier_list_notify(&suspend_notifiers, NULL);
1626 runstate_set(RUN_STATE_SUSPENDED);
1627 qapi_event_send_suspend();
1628 }
1629
1630 void qemu_system_suspend_request(void)
1631 {
1632 if (runstate_check(RUN_STATE_SUSPENDED)) {
1633 return;
1634 }
1635 suspend_requested = 1;
1636 cpu_stop_current();
1637 qemu_notify_event();
1638 }
1639
1640 void qemu_register_suspend_notifier(Notifier *notifier)
1641 {
1642 notifier_list_add(&suspend_notifiers, notifier);
1643 }
1644
1645 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1646 {
1647 trace_system_wakeup_request(reason);
1648
1649 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1650 error_setg(errp,
1651 "Unable to wake up: guest is not in suspended state");
1652 return;
1653 }
1654 if (!(wakeup_reason_mask & (1 << reason))) {
1655 return;
1656 }
1657 runstate_set(RUN_STATE_RUNNING);
1658 wakeup_reason = reason;
1659 qemu_notify_event();
1660 }
1661
1662 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1663 {
1664 if (enabled) {
1665 wakeup_reason_mask |= (1 << reason);
1666 } else {
1667 wakeup_reason_mask &= ~(1 << reason);
1668 }
1669 }
1670
1671 void qemu_register_wakeup_notifier(Notifier *notifier)
1672 {
1673 notifier_list_add(&wakeup_notifiers, notifier);
1674 }
1675
1676 void qemu_register_wakeup_support(void)
1677 {
1678 wakeup_suspend_enabled = true;
1679 }
1680
1681 bool qemu_wakeup_suspend_enabled(void)
1682 {
1683 return wakeup_suspend_enabled;
1684 }
1685
1686 void qemu_system_killed(int signal, pid_t pid)
1687 {
1688 shutdown_signal = signal;
1689 shutdown_pid = pid;
1690 no_shutdown = 0;
1691
1692 /* Cannot call qemu_system_shutdown_request directly because
1693 * we are in a signal handler.
1694 */
1695 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1696 qemu_notify_event();
1697 }
1698
1699 void qemu_system_shutdown_request(ShutdownCause reason)
1700 {
1701 trace_qemu_system_shutdown_request(reason);
1702 replay_shutdown_request(reason);
1703 shutdown_requested = reason;
1704 qemu_notify_event();
1705 }
1706
1707 static void qemu_system_powerdown(void)
1708 {
1709 qapi_event_send_powerdown();
1710 notifier_list_notify(&powerdown_notifiers, NULL);
1711 }
1712
1713 static void qemu_system_shutdown(ShutdownCause cause)
1714 {
1715 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1716 notifier_list_notify(&shutdown_notifiers, &cause);
1717 }
1718
1719 void qemu_system_powerdown_request(void)
1720 {
1721 trace_qemu_system_powerdown_request();
1722 powerdown_requested = 1;
1723 qemu_notify_event();
1724 }
1725
1726 void qemu_register_powerdown_notifier(Notifier *notifier)
1727 {
1728 notifier_list_add(&powerdown_notifiers, notifier);
1729 }
1730
1731 void qemu_register_shutdown_notifier(Notifier *notifier)
1732 {
1733 notifier_list_add(&shutdown_notifiers, notifier);
1734 }
1735
1736 void qemu_system_debug_request(void)
1737 {
1738 debug_requested = 1;
1739 qemu_notify_event();
1740 }
1741
1742 static bool main_loop_should_exit(void)
1743 {
1744 RunState r;
1745 ShutdownCause request;
1746
1747 if (preconfig_exit_requested) {
1748 if (runstate_check(RUN_STATE_PRECONFIG)) {
1749 runstate_set(RUN_STATE_PRELAUNCH);
1750 }
1751 preconfig_exit_requested = false;
1752 return true;
1753 }
1754 if (qemu_debug_requested()) {
1755 vm_stop(RUN_STATE_DEBUG);
1756 }
1757 if (qemu_suspend_requested()) {
1758 qemu_system_suspend();
1759 }
1760 request = qemu_shutdown_requested();
1761 if (request) {
1762 qemu_kill_report();
1763 qemu_system_shutdown(request);
1764 if (no_shutdown) {
1765 vm_stop(RUN_STATE_SHUTDOWN);
1766 } else {
1767 return true;
1768 }
1769 }
1770 request = qemu_reset_requested();
1771 if (request) {
1772 pause_all_vcpus();
1773 qemu_system_reset(request);
1774 resume_all_vcpus();
1775 if (!runstate_check(RUN_STATE_RUNNING) &&
1776 !runstate_check(RUN_STATE_INMIGRATE)) {
1777 runstate_set(RUN_STATE_PRELAUNCH);
1778 }
1779 }
1780 if (qemu_wakeup_requested()) {
1781 pause_all_vcpus();
1782 qemu_system_wakeup();
1783 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1784 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1785 resume_all_vcpus();
1786 qapi_event_send_wakeup();
1787 }
1788 if (qemu_powerdown_requested()) {
1789 qemu_system_powerdown();
1790 }
1791 if (qemu_vmstop_requested(&r)) {
1792 vm_stop(r);
1793 }
1794 return false;
1795 }
1796
1797 static void main_loop(void)
1798 {
1799 #ifdef CONFIG_PROFILER
1800 int64_t ti;
1801 #endif
1802 while (!main_loop_should_exit()) {
1803 #ifdef CONFIG_PROFILER
1804 ti = profile_getclock();
1805 #endif
1806 main_loop_wait(false);
1807 #ifdef CONFIG_PROFILER
1808 dev_time += profile_getclock() - ti;
1809 #endif
1810 }
1811 }
1812
1813 static void version(void)
1814 {
1815 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1816 QEMU_COPYRIGHT "\n");
1817 }
1818
1819 static void help(int exitcode)
1820 {
1821 version();
1822 printf("usage: %s [options] [disk_image]\n\n"
1823 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1824 error_get_progname());
1825
1826 #define QEMU_OPTIONS_GENERATE_HELP
1827 #include "qemu-options-wrapper.h"
1828
1829 printf("\nDuring emulation, the following keys are useful:\n"
1830 "ctrl-alt-f toggle full screen\n"
1831 "ctrl-alt-n switch to virtual console 'n'\n"
1832 "ctrl-alt toggle mouse and keyboard grab\n"
1833 "\n"
1834 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1835 "\n"
1836 QEMU_HELP_BOTTOM "\n");
1837
1838 exit(exitcode);
1839 }
1840
1841 #define HAS_ARG 0x0001
1842
1843 typedef struct QEMUOption {
1844 const char *name;
1845 int flags;
1846 int index;
1847 uint32_t arch_mask;
1848 } QEMUOption;
1849
1850 static const QEMUOption qemu_options[] = {
1851 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1852 #define QEMU_OPTIONS_GENERATE_OPTIONS
1853 #include "qemu-options-wrapper.h"
1854 { NULL },
1855 };
1856
1857 typedef struct VGAInterfaceInfo {
1858 const char *opt_name; /* option name */
1859 const char *name; /* human-readable name */
1860 /* Class names indicating that support is available.
1861 * If no class is specified, the interface is always available */
1862 const char *class_names[2];
1863 } VGAInterfaceInfo;
1864
1865 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1866 [VGA_NONE] = {
1867 .opt_name = "none",
1868 .name = "no graphic card",
1869 },
1870 [VGA_STD] = {
1871 .opt_name = "std",
1872 .name = "standard VGA",
1873 .class_names = { "VGA", "isa-vga" },
1874 },
1875 [VGA_CIRRUS] = {
1876 .opt_name = "cirrus",
1877 .name = "Cirrus VGA",
1878 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1879 },
1880 [VGA_VMWARE] = {
1881 .opt_name = "vmware",
1882 .name = "VMWare SVGA",
1883 .class_names = { "vmware-svga" },
1884 },
1885 [VGA_VIRTIO] = {
1886 .opt_name = "virtio",
1887 .name = "Virtio VGA",
1888 .class_names = { "virtio-vga" },
1889 },
1890 [VGA_QXL] = {
1891 .opt_name = "qxl",
1892 .name = "QXL VGA",
1893 .class_names = { "qxl-vga" },
1894 },
1895 [VGA_TCX] = {
1896 .opt_name = "tcx",
1897 .name = "TCX framebuffer",
1898 .class_names = { "SUNW,tcx" },
1899 },
1900 [VGA_CG3] = {
1901 .opt_name = "cg3",
1902 .name = "CG3 framebuffer",
1903 .class_names = { "cgthree" },
1904 },
1905 [VGA_XENFB] = {
1906 .opt_name = "xenfb",
1907 .name = "Xen paravirtualized framebuffer",
1908 },
1909 };
1910
1911 static bool vga_interface_available(VGAInterfaceType t)
1912 {
1913 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1914
1915 assert(t < VGA_TYPE_MAX);
1916 return !ti->class_names[0] ||
1917 object_class_by_name(ti->class_names[0]) ||
1918 object_class_by_name(ti->class_names[1]);
1919 }
1920
1921 static const char *
1922 get_default_vga_model(const MachineClass *machine_class)
1923 {
1924 if (machine_class->default_display) {
1925 return machine_class->default_display;
1926 } else if (vga_interface_available(VGA_CIRRUS)) {
1927 return "cirrus";
1928 } else if (vga_interface_available(VGA_STD)) {
1929 return "std";
1930 }
1931
1932 return NULL;
1933 }
1934
1935 static void select_vgahw(const MachineClass *machine_class, const char *p)
1936 {
1937 const char *opts;
1938 int t;
1939
1940 if (g_str_equal(p, "help")) {
1941 const char *def = get_default_vga_model(machine_class);
1942
1943 for (t = 0; t < VGA_TYPE_MAX; t++) {
1944 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1945
1946 if (vga_interface_available(t) && ti->opt_name) {
1947 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1948 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1949 }
1950 }
1951 exit(0);
1952 }
1953
1954 assert(vga_interface_type == VGA_NONE);
1955 for (t = 0; t < VGA_TYPE_MAX; t++) {
1956 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1957 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1958 if (!vga_interface_available(t)) {
1959 error_report("%s not available", ti->name);
1960 exit(1);
1961 }
1962 vga_interface_type = t;
1963 break;
1964 }
1965 }
1966 if (t == VGA_TYPE_MAX) {
1967 invalid_vga:
1968 error_report("unknown vga type: %s", p);
1969 exit(1);
1970 }
1971 while (*opts) {
1972 const char *nextopt;
1973
1974 if (strstart(opts, ",retrace=", &nextopt)) {
1975 opts = nextopt;
1976 if (strstart(opts, "dumb", &nextopt))
1977 vga_retrace_method = VGA_RETRACE_DUMB;
1978 else if (strstart(opts, "precise", &nextopt))
1979 vga_retrace_method = VGA_RETRACE_PRECISE;
1980 else goto invalid_vga;
1981 } else goto invalid_vga;
1982 opts = nextopt;
1983 }
1984 }
1985
1986 static void parse_display_qapi(const char *optarg)
1987 {
1988 DisplayOptions *opts;
1989 Visitor *v;
1990
1991 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1992
1993 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1994 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1995
1996 qapi_free_DisplayOptions(opts);
1997 visit_free(v);
1998 }
1999
2000 DisplayOptions *qmp_query_display_options(Error **errp)
2001 {
2002 return QAPI_CLONE(DisplayOptions, &dpy);
2003 }
2004
2005 static void parse_display(const char *p)
2006 {
2007 const char *opts;
2008
2009 if (strstart(p, "sdl", &opts)) {
2010 /*
2011 * sdl DisplayType needs hand-crafted parser instead of
2012 * parse_display_qapi() due to some options not in
2013 * DisplayOptions, specifically:
2014 * - frame
2015 * Already deprecated.
2016 * - ctrl_grab + alt_grab
2017 * Not clear yet what happens to them long-term. Should
2018 * replaced by something better or deprecated and dropped.
2019 */
2020 dpy.type = DISPLAY_TYPE_SDL;
2021 while (*opts) {
2022 const char *nextopt;
2023
2024 if (strstart(opts, ",alt_grab=", &nextopt)) {
2025 opts = nextopt;
2026 if (strstart(opts, "on", &nextopt)) {
2027 alt_grab = 1;
2028 } else if (strstart(opts, "off", &nextopt)) {
2029 alt_grab = 0;
2030 } else {
2031 goto invalid_sdl_args;
2032 }
2033 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2034 opts = nextopt;
2035 if (strstart(opts, "on", &nextopt)) {
2036 ctrl_grab = 1;
2037 } else if (strstart(opts, "off", &nextopt)) {
2038 ctrl_grab = 0;
2039 } else {
2040 goto invalid_sdl_args;
2041 }
2042 } else if (strstart(opts, ",window_close=", &nextopt)) {
2043 opts = nextopt;
2044 dpy.has_window_close = true;
2045 if (strstart(opts, "on", &nextopt)) {
2046 dpy.window_close = true;
2047 } else if (strstart(opts, "off", &nextopt)) {
2048 dpy.window_close = false;
2049 } else {
2050 goto invalid_sdl_args;
2051 }
2052 } else if (strstart(opts, ",gl=", &nextopt)) {
2053 opts = nextopt;
2054 dpy.has_gl = true;
2055 if (strstart(opts, "on", &nextopt)) {
2056 dpy.gl = DISPLAYGL_MODE_ON;
2057 } else if (strstart(opts, "core", &nextopt)) {
2058 dpy.gl = DISPLAYGL_MODE_CORE;
2059 } else if (strstart(opts, "es", &nextopt)) {
2060 dpy.gl = DISPLAYGL_MODE_ES;
2061 } else if (strstart(opts, "off", &nextopt)) {
2062 dpy.gl = DISPLAYGL_MODE_OFF;
2063 } else {
2064 goto invalid_sdl_args;
2065 }
2066 } else {
2067 invalid_sdl_args:
2068 error_report("invalid SDL option string");
2069 exit(1);
2070 }
2071 opts = nextopt;
2072 }
2073 } else if (strstart(p, "vnc", &opts)) {
2074 /*
2075 * vnc isn't a (local) DisplayType but a protocol for remote
2076 * display access.
2077 */
2078 if (*opts == '=') {
2079 vnc_parse(opts + 1, &error_fatal);
2080 } else {
2081 error_report("VNC requires a display argument vnc=<display>");
2082 exit(1);
2083 }
2084 } else {
2085 parse_display_qapi(p);
2086 }
2087 }
2088
2089 char *qemu_find_file(int type, const char *name)
2090 {
2091 int i;
2092 const char *subdir;
2093 char *buf;
2094
2095 /* Try the name as a straight path first */
2096 if (access(name, R_OK) == 0) {
2097 trace_load_file(name, name);
2098 return g_strdup(name);
2099 }
2100
2101 switch (type) {
2102 case QEMU_FILE_TYPE_BIOS:
2103 subdir = "";
2104 break;
2105 case QEMU_FILE_TYPE_KEYMAP:
2106 subdir = "keymaps/";
2107 break;
2108 default:
2109 abort();
2110 }
2111
2112 for (i = 0; i < data_dir_idx; i++) {
2113 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2114 if (access(buf, R_OK) == 0) {
2115 trace_load_file(name, buf);
2116 return buf;
2117 }
2118 g_free(buf);
2119 }
2120 return NULL;
2121 }
2122
2123 static void qemu_add_data_dir(const char *path)
2124 {
2125 int i;
2126
2127 if (path == NULL) {
2128 return;
2129 }
2130 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2131 return;
2132 }
2133 for (i = 0; i < data_dir_idx; i++) {
2134 if (strcmp(data_dir[i], path) == 0) {
2135 return; /* duplicate */
2136 }
2137 }
2138 data_dir[data_dir_idx++] = g_strdup(path);
2139 }
2140
2141 static inline bool nonempty_str(const char *str)
2142 {
2143 return str && *str;
2144 }
2145
2146 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2147 {
2148 gchar *buf;
2149 size_t size;
2150 const char *name, *file, *str;
2151 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2152
2153 if (fw_cfg == NULL) {
2154 error_setg(errp, "fw_cfg device not available");
2155 return -1;
2156 }
2157 name = qemu_opt_get(opts, "name");
2158 file = qemu_opt_get(opts, "file");
2159 str = qemu_opt_get(opts, "string");
2160
2161 /* we need name and either a file or the content string */
2162 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2163 error_setg(errp, "invalid argument(s)");
2164 return -1;
2165 }
2166 if (nonempty_str(file) && nonempty_str(str)) {
2167 error_setg(errp, "file and string are mutually exclusive");
2168 return -1;
2169 }
2170 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2171 error_setg(errp, "name too long (max. %d char)",
2172 FW_CFG_MAX_FILE_PATH - 1);
2173 return -1;
2174 }
2175 if (strncmp(name, "opt/", 4) != 0) {
2176 warn_report("externally provided fw_cfg item names "
2177 "should be prefixed with \"opt/\"");
2178 }
2179 if (nonempty_str(str)) {
2180 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2181 buf = g_memdup(str, size);
2182 } else {
2183 GError *err = NULL;
2184 if (!g_file_get_contents(file, &buf, &size, &err)) {
2185 error_setg(errp, "can't load %s: %s", file, err->message);
2186 g_error_free(err);
2187 return -1;
2188 }
2189 }
2190 /* For legacy, keep user files in a specific global order. */
2191 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2192 fw_cfg_add_file(fw_cfg, name, buf, size);
2193 fw_cfg_reset_order_override(fw_cfg);
2194 return 0;
2195 }
2196
2197 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2198 {
2199 return qdev_device_help(opts);
2200 }
2201
2202 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2203 {
2204 DeviceState *dev;
2205
2206 dev = qdev_device_add(opts, errp);
2207 if (!dev) {
2208 return -1;
2209 }
2210 object_unref(OBJECT(dev));
2211 return 0;
2212 }
2213
2214 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2215 {
2216 Error *local_err = NULL;
2217
2218 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2219 if (local_err) {
2220 error_propagate(errp, local_err);
2221 return -1;
2222 }
2223 exit(0);
2224 }
2225 return 0;
2226 }
2227
2228 #ifdef CONFIG_VIRTFS
2229 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2230 {
2231 return qemu_fsdev_add(opts, errp);
2232 }
2233 #endif
2234
2235 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2236 {
2237 Chardev *chr;
2238 bool qmp;
2239 bool pretty = false;
2240 const char *chardev;
2241 const char *mode;
2242
2243 mode = qemu_opt_get(opts, "mode");
2244 if (mode == NULL) {
2245 mode = "readline";
2246 }
2247 if (strcmp(mode, "readline") == 0) {
2248 qmp = false;
2249 } else if (strcmp(mode, "control") == 0) {
2250 qmp = true;
2251 } else {
2252 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2253 return -1;
2254 }
2255
2256 if (!qmp && qemu_opt_get(opts, "pretty")) {
2257 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2258 "and will be removed in future versions");
2259 }
2260 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2261 pretty = true;
2262 }
2263
2264 chardev = qemu_opt_get(opts, "chardev");
2265 if (!chardev) {
2266 error_report("chardev is required");
2267 exit(1);
2268 }
2269 chr = qemu_chr_find(chardev);
2270 if (chr == NULL) {
2271 error_setg(errp, "chardev \"%s\" not found", chardev);
2272 return -1;
2273 }
2274
2275 if (qmp) {
2276 monitor_init_qmp(chr, pretty);
2277 } else {
2278 monitor_init_hmp(chr, true);
2279 }
2280 return 0;
2281 }
2282
2283 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2284 {
2285 static int monitor_device_index = 0;
2286 QemuOpts *opts;
2287 const char *p;
2288 char label[32];
2289
2290 if (strstart(optarg, "chardev:", &p)) {
2291 snprintf(label, sizeof(label), "%s", p);
2292 } else {
2293 snprintf(label, sizeof(label), "compat_monitor%d",
2294 monitor_device_index);
2295 opts = qemu_chr_parse_compat(label, optarg, true);
2296 if (!opts) {
2297 error_report("parse error: %s", optarg);
2298 exit(1);
2299 }
2300 }
2301
2302 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2303 qemu_opt_set(opts, "mode", mode, &error_abort);
2304 qemu_opt_set(opts, "chardev", label, &error_abort);
2305 if (!strcmp(mode, "control")) {
2306 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2307 } else {
2308 assert(pretty == false);
2309 }
2310 monitor_device_index++;
2311 }
2312
2313 struct device_config {
2314 enum {
2315 DEV_USB, /* -usbdevice */
2316 DEV_BT, /* -bt */
2317 DEV_SERIAL, /* -serial */
2318 DEV_PARALLEL, /* -parallel */
2319 DEV_DEBUGCON, /* -debugcon */
2320 DEV_GDB, /* -gdb, -s */
2321 DEV_SCLP, /* s390 sclp */
2322 } type;
2323 const char *cmdline;
2324 Location loc;
2325 QTAILQ_ENTRY(device_config) next;
2326 };
2327
2328 static QTAILQ_HEAD(, device_config) device_configs =
2329 QTAILQ_HEAD_INITIALIZER(device_configs);
2330
2331 static void add_device_config(int type, const char *cmdline)
2332 {
2333 struct device_config *conf;
2334
2335 conf = g_malloc0(sizeof(*conf));
2336 conf->type = type;
2337 conf->cmdline = cmdline;
2338 loc_save(&conf->loc);
2339 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2340 }
2341
2342 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2343 {
2344 struct device_config *conf;
2345 int rc;
2346
2347 QTAILQ_FOREACH(conf, &device_configs, next) {
2348 if (conf->type != type)
2349 continue;
2350 loc_push_restore(&conf->loc);
2351 rc = func(conf->cmdline);
2352 loc_pop(&conf->loc);
2353 if (rc) {
2354 return rc;
2355 }
2356 }
2357 return 0;
2358 }
2359
2360 static int serial_parse(const char *devname)
2361 {
2362 int index = num_serial_hds;
2363 char label[32];
2364
2365 if (strcmp(devname, "none") == 0)
2366 return 0;
2367 snprintf(label, sizeof(label), "serial%d", index);
2368 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2369
2370 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2371 if (!serial_hds[index]) {
2372 error_report("could not connect serial device"
2373 " to character backend '%s'", devname);
2374 return -1;
2375 }
2376 num_serial_hds++;
2377 return 0;
2378 }
2379
2380 Chardev *serial_hd(int i)
2381 {
2382 assert(i >= 0);
2383 if (i < num_serial_hds) {
2384 return serial_hds[i];
2385 }
2386 return NULL;
2387 }
2388
2389 int serial_max_hds(void)
2390 {
2391 return num_serial_hds;
2392 }
2393
2394 static int parallel_parse(const char *devname)
2395 {
2396 static int index = 0;
2397 char label[32];
2398
2399 if (strcmp(devname, "none") == 0)
2400 return 0;
2401 if (index == MAX_PARALLEL_PORTS) {
2402 error_report("too many parallel ports");
2403 exit(1);
2404 }
2405 snprintf(label, sizeof(label), "parallel%d", index);
2406 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2407 if (!parallel_hds[index]) {
2408 error_report("could not connect parallel device"
2409 " to character backend '%s'", devname);
2410 return -1;
2411 }
2412 index++;
2413 return 0;
2414 }
2415
2416 static int debugcon_parse(const char *devname)
2417 {
2418 QemuOpts *opts;
2419
2420 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2421 error_report("invalid character backend '%s'", devname);
2422 exit(1);
2423 }
2424 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2425 if (!opts) {
2426 error_report("already have a debugcon device");
2427 exit(1);
2428 }
2429 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2430 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2431 return 0;
2432 }
2433
2434 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2435 {
2436 const MachineClass *mc1 = a, *mc2 = b;
2437 int res;
2438
2439 if (mc1->family == NULL) {
2440 if (mc2->family == NULL) {
2441 /* Compare standalone machine types against each other; they sort
2442 * in increasing order.
2443 */
2444 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2445 object_class_get_name(OBJECT_CLASS(mc2)));
2446 }
2447
2448 /* Standalone machine types sort after families. */
2449 return 1;
2450 }
2451
2452 if (mc2->family == NULL) {
2453 /* Families sort before standalone machine types. */
2454 return -1;
2455 }
2456
2457 /* Families sort between each other alphabetically increasingly. */
2458 res = strcmp(mc1->family, mc2->family);
2459 if (res != 0) {
2460 return res;
2461 }
2462
2463 /* Within the same family, machine types sort in decreasing order. */
2464 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2465 object_class_get_name(OBJECT_CLASS(mc1)));
2466 }
2467
2468 static MachineClass *machine_parse(const char *name, GSList *machines)
2469 {
2470 MachineClass *mc;
2471 GSList *el;
2472
2473 if (is_help_option(name)) {
2474 printf("Supported machines are:\n");
2475 machines = g_slist_sort(machines, machine_class_cmp);
2476 for (el = machines; el; el = el->next) {
2477 MachineClass *mc = el->data;
2478 if (mc->alias) {
2479 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2480 }
2481 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2482 mc->is_default ? " (default)" : "",
2483 mc->deprecation_reason ? " (deprecated)" : "");
2484 }
2485 exit(0);
2486 }
2487
2488 mc = find_machine(name, machines);
2489 if (!mc) {
2490 error_report("unsupported machine type");
2491 error_printf("Use -machine help to list supported machines\n");
2492 exit(1);
2493 }
2494 return mc;
2495 }
2496
2497 void qemu_add_exit_notifier(Notifier *notify)
2498 {
2499 notifier_list_add(&exit_notifiers, notify);
2500 }
2501
2502 void qemu_remove_exit_notifier(Notifier *notify)
2503 {
2504 notifier_remove(notify);
2505 }
2506
2507 static void qemu_run_exit_notifiers(void)
2508 {
2509 notifier_list_notify(&exit_notifiers, NULL);
2510 }
2511
2512 static const char *pid_file;
2513 static Notifier qemu_unlink_pidfile_notifier;
2514
2515 static void qemu_unlink_pidfile(Notifier *n, void *data)
2516 {
2517 if (pid_file) {
2518 unlink(pid_file);
2519 }
2520 }
2521
2522 bool machine_init_done;
2523
2524 void qemu_add_machine_init_done_notifier(Notifier *notify)
2525 {
2526 notifier_list_add(&machine_init_done_notifiers, notify);
2527 if (machine_init_done) {
2528 notify->notify(notify, NULL);
2529 }
2530 }
2531
2532 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2533 {
2534 notifier_remove(notify);
2535 }
2536
2537 static void qemu_run_machine_init_done_notifiers(void)
2538 {
2539 machine_init_done = true;
2540 notifier_list_notify(&machine_init_done_notifiers, NULL);
2541 }
2542
2543 static const QEMUOption *lookup_opt(int argc, char **argv,
2544 const char **poptarg, int *poptind)
2545 {
2546 const QEMUOption *popt;
2547 int optind = *poptind;
2548 char *r = argv[optind];
2549 const char *optarg;
2550
2551 loc_set_cmdline(argv, optind, 1);
2552 optind++;
2553 /* Treat --foo the same as -foo. */
2554 if (r[1] == '-')
2555 r++;
2556 popt = qemu_options;
2557 for(;;) {
2558 if (!popt->name) {
2559 error_report("invalid option");
2560 exit(1);
2561 }
2562 if (!strcmp(popt->name, r + 1))
2563 break;
2564 popt++;
2565 }
2566 if (popt->flags & HAS_ARG) {
2567 if (optind >= argc) {
2568 error_report("requires an argument");
2569 exit(1);
2570 }
2571 optarg = argv[optind++];
2572 loc_set_cmdline(argv, optind - 2, 2);
2573 } else {
2574 optarg = NULL;
2575 }
2576
2577 *poptarg = optarg;
2578 *poptind = optind;
2579
2580 return popt;
2581 }
2582
2583 static MachineClass *select_machine(void)
2584 {
2585 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2586 MachineClass *machine_class = find_default_machine(machines);
2587 const char *optarg;
2588 QemuOpts *opts;
2589 Location loc;
2590
2591 loc_push_none(&loc);
2592
2593 opts = qemu_get_machine_opts();
2594 qemu_opts_loc_restore(opts);
2595
2596 optarg = qemu_opt_get(opts, "type");
2597 if (optarg) {
2598 machine_class = machine_parse(optarg, machines);
2599 }
2600
2601 if (!machine_class) {
2602 error_report("No machine specified, and there is no default");
2603 error_printf("Use -machine help to list supported machines\n");
2604 exit(1);
2605 }
2606
2607 loc_pop(&loc);
2608 g_slist_free(machines);
2609 return machine_class;
2610 }
2611
2612 static int machine_set_property(void *opaque,
2613 const char *name, const char *value,
2614 Error **errp)
2615 {
2616 Object *obj = OBJECT(opaque);
2617 Error *local_err = NULL;
2618 char *p, *qom_name;
2619
2620 if (strcmp(name, "type") == 0) {
2621 return 0;
2622 }
2623
2624 qom_name = g_strdup(name);
2625 for (p = qom_name; *p; p++) {
2626 if (*p == '_') {
2627 *p = '-';
2628 }
2629 }
2630
2631 object_property_parse(obj, value, qom_name, &local_err);
2632 g_free(qom_name);
2633
2634 if (local_err) {
2635 error_propagate(errp, local_err);
2636 return -1;
2637 }
2638
2639 return 0;
2640 }
2641
2642
2643 /*
2644 * Initial object creation happens before all other
2645 * QEMU data types are created. The majority of objects
2646 * can be created at this point. The rng-egd object
2647 * cannot be created here, as it depends on the chardev
2648 * already existing.
2649 */
2650 static bool object_create_initial(const char *type, QemuOpts *opts)
2651 {
2652 ObjectClass *klass;
2653
2654 if (is_help_option(type)) {
2655 GSList *l, *list;
2656
2657 printf("List of user creatable objects:\n");
2658 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2659 for (l = list; l != NULL; l = l->next) {
2660 ObjectClass *oc = OBJECT_CLASS(l->data);
2661 printf(" %s\n", object_class_get_name(oc));
2662 }
2663 g_slist_free(list);
2664 exit(0);
2665 }
2666
2667 klass = object_class_by_name(type);
2668 if (klass && qemu_opt_has_help_opt(opts)) {
2669 ObjectPropertyIterator iter;
2670 ObjectProperty *prop;
2671 GPtrArray *array = g_ptr_array_new();
2672 int i;
2673
2674 object_class_property_iter_init(&iter, klass);
2675 while ((prop = object_property_iter_next(&iter))) {
2676 GString *str;
2677
2678 if (!prop->set) {
2679 continue;
2680 }
2681
2682 str = g_string_new(NULL);
2683 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2684 if (prop->description) {
2685 if (str->len < 24) {
2686 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2687 }
2688 g_string_append_printf(str, " - %s", prop->description);
2689 }
2690 g_ptr_array_add(array, g_string_free(str, false));
2691 }
2692 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2693 if (array->len > 0) {
2694 printf("%s options:\n", type);
2695 } else {
2696 printf("There are no options for %s.\n", type);
2697 }
2698 for (i = 0; i < array->len; i++) {
2699 printf("%s\n", (char *)array->pdata[i]);
2700 }
2701 g_ptr_array_set_free_func(array, g_free);
2702 g_ptr_array_free(array, true);
2703 exit(0);
2704 }
2705
2706 /*
2707 * Objects should not be made "delayed" without a reason. If you
2708 * add one, state the reason in a comment!
2709 */
2710
2711 /* Reason: rng-egd property "chardev" */
2712 if (g_str_equal(type, "rng-egd")) {
2713 return false;
2714 }
2715
2716 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2717 /* Reason: cryptodev-vhost-user property "chardev" */
2718 if (g_str_equal(type, "cryptodev-vhost-user")) {
2719 return false;
2720 }
2721 #endif
2722
2723 /*
2724 * Reason: filter-* property "netdev" etc.
2725 */
2726 if (g_str_equal(type, "filter-buffer") ||
2727 g_str_equal(type, "filter-dump") ||
2728 g_str_equal(type, "filter-mirror") ||
2729 g_str_equal(type, "filter-redirector") ||
2730 g_str_equal(type, "colo-compare") ||
2731 g_str_equal(type, "filter-rewriter") ||
2732 g_str_equal(type, "filter-replay")) {
2733 return false;
2734 }
2735
2736 /* Memory allocation by backends needs to be done
2737 * after configure_accelerator() (due to the tcg_enabled()
2738 * checks at memory_region_init_*()).
2739 *
2740 * Also, allocation of large amounts of memory may delay
2741 * chardev initialization for too long, and trigger timeouts
2742 * on software that waits for a monitor socket to be created
2743 * (e.g. libvirt).
2744 */
2745 if (g_str_has_prefix(type, "memory-backend-")) {
2746 return false;
2747 }
2748
2749 return true;
2750 }
2751
2752
2753 /*
2754 * The remainder of object creation happens after the
2755 * creation of chardev, fsdev, net clients and device data types.
2756 */
2757 static bool object_create_delayed(const char *type, QemuOpts *opts)
2758 {
2759 return !object_create_initial(type, opts);
2760 }
2761
2762
2763 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2764 MachineClass *mc)
2765 {
2766 uint64_t sz;
2767 const char *mem_str;
2768 const ram_addr_t default_ram_size = mc->default_ram_size;
2769 QemuOpts *opts = qemu_find_opts_singleton("memory");
2770 Location loc;
2771
2772 loc_push_none(&loc);
2773 qemu_opts_loc_restore(opts);
2774
2775 sz = 0;
2776 mem_str = qemu_opt_get(opts, "size");
2777 if (mem_str) {
2778 if (!*mem_str) {
2779 error_report("missing 'size' option value");
2780 exit(EXIT_FAILURE);
2781 }
2782
2783 sz = qemu_opt_get_size(opts, "size", ram_size);
2784
2785 /* Fix up legacy suffix-less format */
2786 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2787 uint64_t overflow_check = sz;
2788
2789 sz *= MiB;
2790 if (sz / MiB != overflow_check) {
2791 error_report("too large 'size' option value");
2792 exit(EXIT_FAILURE);
2793 }
2794 }
2795 }
2796
2797 /* backward compatibility behaviour for case "-m 0" */
2798 if (sz == 0) {
2799 sz = default_ram_size;
2800 }
2801
2802 sz = QEMU_ALIGN_UP(sz, 8192);
2803 ram_size = sz;
2804 if (ram_size != sz) {
2805 error_report("ram size too large");
2806 exit(EXIT_FAILURE);
2807 }
2808
2809 /* store value for the future use */
2810 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2811 *maxram_size = ram_size;
2812
2813 if (qemu_opt_get(opts, "maxmem")) {
2814 uint64_t slots;
2815
2816 sz = qemu_opt_get_size(opts, "maxmem", 0);
2817 slots = qemu_opt_get_number(opts, "slots", 0);
2818 if (sz < ram_size) {
2819 error_report("invalid value of -m option maxmem: "
2820 "maximum memory size (0x%" PRIx64 ") must be at least "
2821 "the initial memory size (0x" RAM_ADDR_FMT ")",
2822 sz, ram_size);
2823 exit(EXIT_FAILURE);
2824 } else if (slots && sz == ram_size) {
2825 error_report("invalid value of -m option maxmem: "
2826 "memory slots were specified but maximum memory size "
2827 "(0x%" PRIx64 ") is equal to the initial memory size "
2828 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2829 exit(EXIT_FAILURE);
2830 }
2831
2832 *maxram_size = sz;
2833 *ram_slots = slots;
2834 } else if (qemu_opt_get(opts, "slots")) {
2835 error_report("invalid -m option value: missing 'maxmem' option");
2836 exit(EXIT_FAILURE);
2837 }
2838
2839 loc_pop(&loc);
2840 }
2841
2842 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2843 {
2844 GlobalProperty *g;
2845
2846 g = g_malloc0(sizeof(*g));
2847 g->driver = qemu_opt_get(opts, "driver");
2848 g->property = qemu_opt_get(opts, "property");
2849 g->value = qemu_opt_get(opts, "value");
2850 qdev_prop_register_global(g);
2851 return 0;
2852 }
2853
2854 static int qemu_read_default_config_file(void)
2855 {
2856 int ret;
2857
2858 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2859 if (ret < 0 && ret != -ENOENT) {
2860 return ret;
2861 }
2862
2863 return 0;
2864 }
2865
2866 static void user_register_global_props(void)
2867 {
2868 qemu_opts_foreach(qemu_find_opts("global"),
2869 global_init_func, NULL, NULL);
2870 }
2871
2872 int main(int argc, char **argv, char **envp)
2873 {
2874 int i;
2875 int snapshot, linux_boot;
2876 const char *initrd_filename;
2877 const char *kernel_filename, *kernel_cmdline;
2878 const char *boot_order = NULL;
2879 const char *boot_once = NULL;
2880 DisplayState *ds;
2881 QemuOpts *opts, *machine_opts;
2882 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2883 QemuOptsList *olist;
2884 int optind;
2885 const char *optarg;
2886 const char *loadvm = NULL;
2887 MachineClass *machine_class;
2888 const char *cpu_option;
2889 const char *vga_model = NULL;
2890 const char *qtest_chrdev = NULL;
2891 const char *qtest_log = NULL;
2892 const char *incoming = NULL;
2893 bool userconfig = true;
2894 bool nographic = false;
2895 int display_remote = 0;
2896 const char *log_mask = NULL;
2897 const char *log_file = NULL;
2898 char *trace_file = NULL;
2899 ram_addr_t maxram_size;
2900 uint64_t ram_slots = 0;
2901 FILE *vmstate_dump_file = NULL;
2902 Error *main_loop_err = NULL;
2903 Error *err = NULL;
2904 bool list_data_dirs = false;
2905 char *dir, **dirs;
2906 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2907
2908 os_set_line_buffering();
2909
2910 error_init(argv[0]);
2911 module_call_init(MODULE_INIT_TRACE);
2912
2913 qemu_init_cpu_list();
2914 qemu_init_cpu_loop();
2915
2916 qemu_mutex_lock_iothread();
2917
2918 atexit(qemu_run_exit_notifiers);
2919 qemu_init_exec_dir(argv[0]);
2920
2921 module_call_init(MODULE_INIT_QOM);
2922
2923 qemu_add_opts(&qemu_drive_opts);
2924 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2925 qemu_add_drive_opts(&qemu_common_drive_opts);
2926 qemu_add_drive_opts(&qemu_drive_opts);
2927 qemu_add_drive_opts(&bdrv_runtime_opts);
2928 qemu_add_opts(&qemu_chardev_opts);
2929 qemu_add_opts(&qemu_device_opts);
2930 qemu_add_opts(&qemu_netdev_opts);
2931 qemu_add_opts(&qemu_nic_opts);
2932 qemu_add_opts(&qemu_net_opts);
2933 qemu_add_opts(&qemu_rtc_opts);
2934 qemu_add_opts(&qemu_global_opts);
2935 qemu_add_opts(&qemu_mon_opts);
2936 qemu_add_opts(&qemu_trace_opts);
2937 qemu_add_opts(&qemu_option_rom_opts);
2938 qemu_add_opts(&qemu_machine_opts);
2939 qemu_add_opts(&qemu_accel_opts);
2940 qemu_add_opts(&qemu_mem_opts);
2941 qemu_add_opts(&qemu_smp_opts);
2942 qemu_add_opts(&qemu_boot_opts);
2943 qemu_add_opts(&qemu_add_fd_opts);
2944 qemu_add_opts(&qemu_object_opts);
2945 qemu_add_opts(&qemu_tpmdev_opts);
2946 qemu_add_opts(&qemu_realtime_opts);
2947 qemu_add_opts(&qemu_overcommit_opts);
2948 qemu_add_opts(&qemu_msg_opts);
2949 qemu_add_opts(&qemu_name_opts);
2950 qemu_add_opts(&qemu_numa_opts);
2951 qemu_add_opts(&qemu_icount_opts);
2952 qemu_add_opts(&qemu_semihosting_config_opts);
2953 qemu_add_opts(&qemu_fw_cfg_opts);
2954 module_call_init(MODULE_INIT_OPTS);
2955
2956 runstate_init();
2957 precopy_infrastructure_init();
2958 postcopy_infrastructure_init();
2959 monitor_init_globals();
2960
2961 if (qcrypto_init(&err) < 0) {
2962 error_reportf_err(err, "cannot initialize crypto: ");
2963 exit(1);
2964 }
2965
2966 QTAILQ_INIT(&vm_change_state_head);
2967 os_setup_early_signal_handling();
2968
2969 cpu_option = NULL;
2970 snapshot = 0;
2971
2972 nb_nics = 0;
2973
2974 bdrv_init_with_whitelist();
2975
2976 autostart = 1;
2977
2978 /* first pass of option parsing */
2979 optind = 1;
2980 while (optind < argc) {
2981 if (argv[optind][0] != '-') {
2982 /* disk image */
2983 optind++;
2984 } else {
2985 const QEMUOption *popt;
2986
2987 popt = lookup_opt(argc, argv, &optarg, &optind);
2988 switch (popt->index) {
2989 case QEMU_OPTION_nouserconfig:
2990 userconfig = false;
2991 break;
2992 }
2993 }
2994 }
2995
2996 if (userconfig) {
2997 if (qemu_read_default_config_file() < 0) {
2998 exit(1);
2999 }
3000 }
3001
3002 /* second pass of option parsing */
3003 optind = 1;
3004 for(;;) {
3005 if (optind >= argc)
3006 break;
3007 if (argv[optind][0] != '-') {
3008 loc_set_cmdline(argv, optind, 1);
3009 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3010 } else {
3011 const QEMUOption *popt;
3012
3013 popt = lookup_opt(argc, argv, &optarg, &optind);
3014 if (!(popt->arch_mask & arch_type)) {
3015 error_report("Option not supported for this target");
3016 exit(1);
3017 }
3018 switch(popt->index) {
3019 case QEMU_OPTION_cpu:
3020 /* hw initialization will check this */
3021 cpu_option = optarg;
3022 break;
3023 case QEMU_OPTION_hda:
3024 case QEMU_OPTION_hdb:
3025 case QEMU_OPTION_hdc:
3026 case QEMU_OPTION_hdd:
3027 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3028 HD_OPTS);
3029 break;
3030 case QEMU_OPTION_blockdev:
3031 {
3032 Visitor *v;
3033 BlockdevOptionsQueueEntry *bdo;
3034
3035 v = qobject_input_visitor_new_str(optarg, "driver",
3036 &error_fatal);
3037
3038 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3039 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3040 &error_fatal);
3041 visit_free(v);
3042 loc_save(&bdo->loc);
3043 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3044 break;
3045 }
3046 case QEMU_OPTION_drive:
3047 if (drive_def(optarg) == NULL) {
3048 exit(1);
3049 }
3050 break;
3051 case QEMU_OPTION_set:
3052 if (qemu_set_option(optarg) != 0)
3053 exit(1);
3054 break;
3055 case QEMU_OPTION_global:
3056 if (qemu_global_option(optarg) != 0)
3057 exit(1);
3058 break;
3059 case QEMU_OPTION_mtdblock:
3060 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3061 break;
3062 case QEMU_OPTION_sd:
3063 drive_add(IF_SD, -1, optarg, SD_OPTS);
3064 break;
3065 case QEMU_OPTION_pflash:
3066 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3067 break;
3068 case QEMU_OPTION_snapshot:
3069 snapshot = 1;
3070 break;
3071 case QEMU_OPTION_numa:
3072 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3073 optarg, true);
3074 if (!opts) {
3075 exit(1);
3076 }
3077 break;
3078 case QEMU_OPTION_display:
3079 parse_display(optarg);
3080 break;
3081 case QEMU_OPTION_nographic:
3082 olist = qemu_find_opts("machine");
3083 qemu_opts_parse_noisily(olist, "graphics=off", false);
3084 nographic = true;
3085 dpy.type = DISPLAY_TYPE_NONE;
3086 break;
3087 case QEMU_OPTION_curses:
3088 #ifdef CONFIG_CURSES
3089 dpy.type = DISPLAY_TYPE_CURSES;
3090 #else
3091 error_report("curses or iconv support is disabled");
3092 exit(1);
3093 #endif
3094 break;
3095 case QEMU_OPTION_portrait:
3096 graphic_rotate = 90;
3097 break;
3098 case QEMU_OPTION_rotate:
3099 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3100 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3101 graphic_rotate != 180 && graphic_rotate != 270) {
3102 error_report("only 90, 180, 270 deg rotation is available");
3103 exit(1);
3104 }
3105 break;
3106 case QEMU_OPTION_kernel:
3107 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3108 &error_abort);
3109 break;
3110 case QEMU_OPTION_initrd:
3111 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3112 &error_abort);
3113 break;
3114 case QEMU_OPTION_append:
3115 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3116 &error_abort);
3117 break;
3118 case QEMU_OPTION_dtb:
3119 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3120 &error_abort);
3121 break;
3122 case QEMU_OPTION_cdrom:
3123 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3124 break;
3125 case QEMU_OPTION_boot:
3126 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3127 optarg, true);
3128 if (!opts) {
3129 exit(1);
3130 }
3131 break;
3132 case QEMU_OPTION_fda:
3133 case QEMU_OPTION_fdb:
3134 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3135 optarg, FD_OPTS);
3136 break;
3137 case QEMU_OPTION_no_fd_bootchk:
3138 fd_bootchk = 0;
3139 break;
3140 case QEMU_OPTION_netdev:
3141 default_net = 0;
3142 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3143 exit(1);
3144 }
3145 break;
3146 case QEMU_OPTION_nic:
3147 default_net = 0;
3148 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3149 exit(1);
3150 }
3151 break;
3152 case QEMU_OPTION_net:
3153 default_net = 0;
3154 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3155 exit(1);
3156 }
3157 break;
3158 #ifdef CONFIG_LIBISCSI
3159 case QEMU_OPTION_iscsi:
3160 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3161 optarg, false);
3162 if (!opts) {
3163 exit(1);
3164 }
3165 break;
3166 #endif
3167 case QEMU_OPTION_bt:
3168 warn_report("The bluetooth subsystem is deprecated and will "
3169 "be removed soon. If the bluetooth subsystem is "
3170 "still useful for you, please send a mail to "
3171 "qemu-devel@nongnu.org with your usecase.");
3172 add_device_config(DEV_BT, optarg);
3173 break;
3174 case QEMU_OPTION_audio_help:
3175 audio_legacy_help();
3176 exit (0);
3177 break;
3178 case QEMU_OPTION_audiodev:
3179 audio_parse_option(optarg);
3180 break;
3181 case QEMU_OPTION_soundhw:
3182 select_soundhw (optarg);
3183 break;
3184 case QEMU_OPTION_h:
3185 help(0);
3186 break;
3187 case QEMU_OPTION_version:
3188 version();
3189 exit(0);
3190 break;
3191 case QEMU_OPTION_m:
3192 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3193 optarg, true);
3194 if (!opts) {
3195 exit(EXIT_FAILURE);
3196 }
3197 break;
3198 #ifdef CONFIG_TPM
3199 case QEMU_OPTION_tpmdev:
3200 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3201 exit(1);
3202 }
3203 break;
3204 #endif
3205 case QEMU_OPTION_mempath:
3206 mem_path = optarg;
3207 break;
3208 case QEMU_OPTION_mem_prealloc:
3209 mem_prealloc = 1;
3210 break;
3211 case QEMU_OPTION_d:
3212 log_mask = optarg;
3213 break;
3214 case QEMU_OPTION_D:
3215 log_file = optarg;
3216 break;
3217 case QEMU_OPTION_DFILTER:
3218 qemu_set_dfilter_ranges(optarg, &error_fatal);
3219 break;
3220 case QEMU_OPTION_seed:
3221 qemu_guest_random_seed_main(optarg, &error_fatal);
3222 break;
3223 case QEMU_OPTION_s:
3224 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3225 break;
3226 case QEMU_OPTION_gdb:
3227 add_device_config(DEV_GDB, optarg);
3228 break;
3229 case QEMU_OPTION_L:
3230 if (is_help_option(optarg)) {
3231 list_data_dirs = true;
3232 } else {
3233 qemu_add_data_dir(optarg);
3234 }
3235 break;
3236 case QEMU_OPTION_bios:
3237 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3238 &error_abort);
3239 break;
3240 case QEMU_OPTION_singlestep:
3241 singlestep = 1;
3242 break;
3243 case QEMU_OPTION_S:
3244 autostart = 0;
3245 break;
3246 case QEMU_OPTION_k:
3247 keyboard_layout = optarg;
3248 break;
3249 case QEMU_OPTION_vga:
3250 vga_model = optarg;
3251 default_vga = 0;
3252 break;
3253 case QEMU_OPTION_g:
3254 {
3255 const char *p;
3256 int w, h, depth;
3257 p = optarg;
3258 w = strtol(p, (char **)&p, 10);
3259 if (w <= 0) {
3260 graphic_error:
3261 error_report("invalid resolution or depth");
3262 exit(1);
3263 }
3264 if (*p != 'x')
3265 goto graphic_error;
3266 p++;
3267 h = strtol(p, (char **)&p, 10);
3268 if (h <= 0)
3269 goto graphic_error;
3270 if (*p == 'x') {
3271 p++;
3272 depth = strtol(p, (char **)&p, 10);
3273 if (depth != 8 && depth != 15 && depth != 16 &&
3274 depth != 24 && depth != 32)
3275 goto graphic_error;
3276 } else if (*p == '\0') {
3277 depth = graphic_depth;
3278 } else {
3279 goto graphic_error;
3280 }
3281
3282 graphic_width = w;
3283 graphic_height = h;
3284 graphic_depth = depth;
3285 }
3286 break;
3287 case QEMU_OPTION_echr:
3288 {
3289 char *r;
3290 term_escape_char = strtol(optarg, &r, 0);
3291 if (r == optarg)
3292 printf("Bad argument to echr\n");
3293 break;
3294 }
3295 case QEMU_OPTION_monitor:
3296 default_monitor = 0;
3297 if (strncmp(optarg, "none", 4)) {
3298 monitor_parse(optarg, "readline", false);
3299 }
3300 break;
3301 case QEMU_OPTION_qmp:
3302 monitor_parse(optarg, "control", false);
3303 default_monitor = 0;
3304 break;
3305 case QEMU_OPTION_qmp_pretty:
3306 monitor_parse(optarg, "control", true);
3307 default_monitor = 0;
3308 break;
3309 case QEMU_OPTION_mon:
3310 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3311 true);
3312 if (!opts) {
3313 exit(1);
3314 }
3315 default_monitor = 0;
3316 break;
3317 case QEMU_OPTION_chardev:
3318 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3319 optarg, true);
3320 if (!opts) {
3321 exit(1);
3322 }
3323 break;
3324 case QEMU_OPTION_fsdev:
3325 olist = qemu_find_opts("fsdev");
3326 if (!olist) {
3327 error_report("fsdev support is disabled");
3328 exit(1);
3329 }
3330 opts = qemu_opts_parse_noisily(olist, optarg, true);
3331 if (!opts) {
3332 exit(1);
3333 }
3334 break;
3335 case QEMU_OPTION_virtfs: {
3336 QemuOpts *fsdev;
3337 QemuOpts *device;
3338 const char *writeout, *sock_fd, *socket, *path, *security_model;
3339
3340 olist = qemu_find_opts("virtfs");
3341 if (!olist) {
3342 error_report("virtfs support is disabled");
3343 exit(1);
3344 }
3345 opts = qemu_opts_parse_noisily(olist, optarg, true);
3346 if (!opts) {
3347 exit(1);
3348 }
3349
3350 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3351 qemu_opt_get(opts, "mount_tag") == NULL) {
3352 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3353 exit(1);
3354 }
3355 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3356 qemu_opts_id(opts) ?:
3357 qemu_opt_get(opts, "mount_tag"),
3358 1, NULL);
3359 if (!fsdev) {
3360 error_report("duplicate or invalid fsdev id: %s",
3361 qemu_opt_get(opts, "mount_tag"));
3362 exit(1);
3363 }
3364
3365 writeout = qemu_opt_get(opts, "writeout");
3366 if (writeout) {
3367 #ifdef CONFIG_SYNC_FILE_RANGE
3368 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3369 #else
3370 error_report("writeout=immediate not supported "
3371 "on this platform");
3372 exit(1);
3373 #endif
3374 }
3375 qemu_opt_set(fsdev, "fsdriver",
3376 qemu_opt_get(opts, "fsdriver"), &error_abort);
3377 path = qemu_opt_get(opts, "path");
3378 if (path) {
3379 qemu_opt_set(fsdev, "path", path, &error_abort);
3380 }
3381 security_model = qemu_opt_get(opts, "security_model");
3382 if (security_model) {
3383 qemu_opt_set(fsdev, "security_model", security_model,
3384 &error_abort);
3385 }
3386 socket = qemu_opt_get(opts, "socket");
3387 if (socket) {
3388 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3389 }
3390 sock_fd = qemu_opt_get(opts, "sock_fd");
3391 if (sock_fd) {
3392 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3393 }
3394
3395 qemu_opt_set_bool(fsdev, "readonly",
3396 qemu_opt_get_bool(opts, "readonly", 0),
3397 &error_abort);
3398 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3399 &error_abort);
3400 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3401 qemu_opt_set(device, "fsdev",
3402 qemu_opts_id(fsdev), &error_abort);
3403 qemu_opt_set(device, "mount_tag",
3404 qemu_opt_get(opts, "mount_tag"), &error_abort);
3405 break;
3406 }
3407 case QEMU_OPTION_virtfs_synth: {
3408 QemuOpts *fsdev;
3409 QemuOpts *device;
3410
3411 warn_report("'-virtfs_synth' is deprecated, please use "
3412 "'-fsdev synth' and '-device virtio-9p-...' "
3413 "instead");
3414
3415 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3416 1, NULL);
3417 if (!fsdev) {
3418 error_report("duplicate option: %s", "virtfs_synth");
3419 exit(1);
3420 }
3421 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3422
3423 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3424 &error_abort);
3425 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3426 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3427 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3428 break;
3429 }
3430 case QEMU_OPTION_serial:
3431 add_device_config(DEV_SERIAL, optarg);
3432 default_serial = 0;
3433 if (strncmp(optarg, "mon:", 4) == 0) {
3434 default_monitor = 0;
3435 }
3436 break;
3437 case QEMU_OPTION_watchdog:
3438 if (watchdog) {
3439 error_report("only one watchdog option may be given");
3440 return 1;
3441 }
3442 watchdog = optarg;
3443 break;
3444 case QEMU_OPTION_watchdog_action:
3445 if (select_watchdog_action(optarg) == -1) {
3446 error_report("unknown -watchdog-action parameter");
3447 exit(1);
3448 }
3449 break;
3450 case QEMU_OPTION_parallel:
3451 add_device_config(DEV_PARALLEL, optarg);
3452 default_parallel = 0;
3453 if (strncmp(optarg, "mon:", 4) == 0) {
3454 default_monitor = 0;
3455 }
3456 break;
3457 case QEMU_OPTION_debugcon:
3458 add_device_config(DEV_DEBUGCON, optarg);
3459 break;
3460 case QEMU_OPTION_loadvm:
3461 loadvm = optarg;
3462 break;
3463 case QEMU_OPTION_full_screen:
3464 dpy.has_full_screen = true;
3465 dpy.full_screen = true;
3466 break;
3467 case QEMU_OPTION_alt_grab:
3468 alt_grab = 1;
3469 break;
3470 case QEMU_OPTION_ctrl_grab:
3471 ctrl_grab = 1;
3472 break;
3473 case QEMU_OPTION_no_quit:
3474 dpy.has_window_close = true;
3475 dpy.window_close = false;
3476 break;
3477 case QEMU_OPTION_sdl:
3478 #ifdef CONFIG_SDL
3479 dpy.type = DISPLAY_TYPE_SDL;
3480 break;
3481 #else
3482 error_report("SDL support is disabled");
3483 exit(1);
3484 #endif
3485 case QEMU_OPTION_pidfile:
3486 pid_file = optarg;
3487 break;
3488 case QEMU_OPTION_win2k_hack:
3489 win2k_install_hack = 1;
3490 break;
3491 case QEMU_OPTION_acpitable:
3492 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3493 optarg, true);
3494 if (!opts) {
3495 exit(1);
3496 }
3497 acpi_table_add(opts, &error_fatal);
3498 break;
3499 case QEMU_OPTION_smbios:
3500 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3501 optarg, false);
3502 if (!opts) {
3503 exit(1);
3504 }
3505 smbios_entry_add(opts, &error_fatal);
3506 break;
3507 case QEMU_OPTION_fwcfg:
3508 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3509 optarg, true);
3510 if (opts == NULL) {
3511 exit(1);
3512 }
3513 break;
3514 case QEMU_OPTION_preconfig:
3515 preconfig_exit_requested = false;
3516 break;
3517 case QEMU_OPTION_enable_kvm:
3518 olist = qemu_find_opts("machine");
3519 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3520 break;
3521 case QEMU_OPTION_M:
3522 case QEMU_OPTION_machine:
3523 olist = qemu_find_opts("machine");
3524 opts = qemu_opts_parse_noisily(olist, optarg, true);
3525 if (!opts) {
3526 exit(1);
3527 }
3528 break;
3529 case QEMU_OPTION_no_kvm:
3530 olist = qemu_find_opts("machine");
3531 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3532 break;
3533 case QEMU_OPTION_accel:
3534 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3535 optarg, true);
3536 optarg = qemu_opt_get(accel_opts, "accel");
3537 if (!optarg || is_help_option(optarg)) {
3538 printf("Accelerators supported in QEMU binary:\n");
3539 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3540 false);
3541 for (el = accel_list; el; el = el->next) {
3542 gchar *typename = g_strdup(object_class_get_name(
3543 OBJECT_CLASS(el->data)));
3544 /* omit qtest which is used for tests only */
3545 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3546 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3547 gchar **optname = g_strsplit(typename,
3548 ACCEL_CLASS_SUFFIX, 0);
3549 printf("%s\n", optname[0]);
3550 g_free(optname);
3551 }
3552 g_free(typename);
3553 }
3554 g_slist_free(accel_list);
3555 exit(0);
3556 }
3557 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3558 false, &error_abort);
3559 qemu_opt_set(opts, "accel", optarg, &error_abort);
3560 break;
3561 case QEMU_OPTION_usb:
3562 olist = qemu_find_opts("machine");
3563 qemu_opts_parse_noisily(olist, "usb=on", false);
3564 break;
3565 case QEMU_OPTION_usbdevice:
3566 error_report("'-usbdevice' is deprecated, please use "
3567 "'-device usb-...' instead");
3568 olist = qemu_find_opts("machine");
3569 qemu_opts_parse_noisily(olist, "usb=on", false);
3570 add_device_config(DEV_USB, optarg);
3571 break;
3572 case QEMU_OPTION_device:
3573 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3574 optarg, true)) {
3575 exit(1);
3576 }
3577 break;
3578 case QEMU_OPTION_smp:
3579 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3580 optarg, true)) {
3581 exit(1);
3582 }
3583 break;
3584 case QEMU_OPTION_vnc:
3585 vnc_parse(optarg, &error_fatal);
3586 break;
3587 case QEMU_OPTION_no_acpi:
3588 acpi_enabled = 0;
3589 break;
3590 case QEMU_OPTION_no_hpet:
3591 no_hpet = 1;
3592 break;
3593 case QEMU_OPTION_no_reboot:
3594 no_reboot = 1;
3595 break;
3596 case QEMU_OPTION_no_shutdown:
3597 no_shutdown = 1;
3598 break;
3599 case QEMU_OPTION_show_cursor:
3600 cursor_hide = 0;
3601 break;
3602 case QEMU_OPTION_uuid:
3603 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3604 error_report("failed to parse UUID string: wrong format");
3605 exit(1);
3606 }
3607 qemu_uuid_set = true;
3608 break;
3609 case QEMU_OPTION_option_rom:
3610 if (nb_option_roms >= MAX_OPTION_ROMS) {
3611 error_report("too many option ROMs");
3612 exit(1);
3613 }
3614 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3615 optarg, true);
3616 if (!opts) {
3617 exit(1);
3618 }
3619 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3620 option_rom[nb_option_roms].bootindex =
3621 qemu_opt_get_number(opts, "bootindex", -1);
3622 if (!option_rom[nb_option_roms].name) {
3623 error_report("Option ROM file is not specified");
3624 exit(1);
3625 }
3626 nb_option_roms++;
3627 break;
3628 case QEMU_OPTION_semihosting:
3629 qemu_semihosting_enable();
3630 break;
3631 case QEMU_OPTION_semihosting_config:
3632 if (qemu_semihosting_config_options(optarg) != 0) {
3633 exit(1);
3634 }
3635 break;
3636 case QEMU_OPTION_name:
3637 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3638 optarg, true);
3639 if (!opts) {
3640 exit(1);
3641 }
3642 break;
3643 case QEMU_OPTION_prom_env:
3644 if (nb_prom_envs >= MAX_PROM_ENVS) {
3645 error_report("too many prom variables");
3646 exit(1);
3647 }
3648 prom_envs[nb_prom_envs] = optarg;
3649 nb_prom_envs++;
3650 break;
3651 case QEMU_OPTION_old_param:
3652 old_param = 1;
3653 break;
3654 case QEMU_OPTION_rtc:
3655 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3656 false);
3657 if (!opts) {
3658 exit(1);
3659 }
3660 break;
3661 case QEMU_OPTION_tb_size:
3662 #ifndef CONFIG_TCG
3663 error_report("TCG is disabled");
3664 exit(1);
3665 #endif
3666 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3667 error_report("Invalid argument to -tb-size");
3668 exit(1);
3669 }
3670 break;
3671 case QEMU_OPTION_icount:
3672 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3673 optarg, true);
3674 if (!icount_opts) {
3675 exit(1);
3676 }
3677 break;
3678 case QEMU_OPTION_incoming:
3679 if (!incoming) {
3680 runstate_set(RUN_STATE_INMIGRATE);
3681 }
3682 incoming = optarg;
3683 break;
3684 case QEMU_OPTION_only_migratable:
3685 only_migratable = 1;
3686 break;
3687 case QEMU_OPTION_nodefaults:
3688 has_defaults = 0;
3689 break;
3690 case QEMU_OPTION_xen_domid:
3691 if (!(xen_available())) {
3692 error_report("Option not supported for this target");
3693 exit(1);
3694 }
3695 xen_domid = atoi(optarg);
3696 break;
3697 case QEMU_OPTION_xen_attach:
3698 if (!(xen_available())) {
3699 error_report("Option not supported for this target");
3700 exit(1);
3701 }
3702 xen_mode = XEN_ATTACH;
3703 break;
3704 case QEMU_OPTION_xen_domid_restrict:
3705 if (!(xen_available())) {
3706 error_report("Option not supported for this target");
3707 exit(1);
3708 }
3709 xen_domid_restrict = true;
3710 break;
3711 case QEMU_OPTION_trace:
3712 g_free(trace_file);
3713 trace_file = trace_opt_parse(optarg);
3714 break;
3715 case QEMU_OPTION_readconfig:
3716 {
3717 int ret = qemu_read_config_file(optarg);
3718 if (ret < 0) {
3719 error_report("read config %s: %s", optarg,
3720 strerror(-ret));
3721 exit(1);
3722 }
3723 break;
3724 }
3725 case QEMU_OPTION_spice:
3726 olist = qemu_find_opts("spice");
3727 if (!olist) {
3728 error_report("spice support is disabled");
3729 exit(1);
3730 }
3731 opts = qemu_opts_parse_noisily(olist, optarg, false);
3732 if (!opts) {
3733 exit(1);
3734 }
3735 display_remote++;
3736 break;
3737 case QEMU_OPTION_writeconfig:
3738 {
3739 FILE *fp;
3740 if (strcmp(optarg, "-") == 0) {
3741 fp = stdout;
3742 } else {
3743 fp = fopen(optarg, "w");
3744 if (fp == NULL) {
3745 error_report("open %s: %s", optarg,
3746 strerror(errno));
3747 exit(1);
3748 }
3749 }
3750 qemu_config_write(fp);
3751 if (fp != stdout) {
3752 fclose(fp);
3753 }
3754 break;
3755 }
3756 case QEMU_OPTION_qtest:
3757 qtest_chrdev = optarg;
3758 break;
3759 case QEMU_OPTION_qtest_log:
3760 qtest_log = optarg;
3761 break;
3762 case QEMU_OPTION_sandbox:
3763 olist = qemu_find_opts("sandbox");
3764 if (!olist) {
3765 #ifndef CONFIG_SECCOMP
3766 error_report("-sandbox support is not enabled "
3767 "in this QEMU binary");
3768 #endif
3769 exit(1);
3770 }
3771
3772 opts = qemu_opts_parse_noisily(olist, optarg, true);
3773 if (!opts) {
3774 exit(1);
3775 }
3776 break;
3777 case QEMU_OPTION_add_fd:
3778 #ifndef _WIN32
3779 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3780 optarg, false);
3781 if (!opts) {
3782 exit(1);
3783 }
3784 #else
3785 error_report("File descriptor passing is disabled on this "
3786 "platform");
3787 exit(1);
3788 #endif
3789 break;
3790 case QEMU_OPTION_object:
3791 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3792 optarg, true);
3793 if (!opts) {
3794 exit(1);
3795 }
3796 break;
3797 case QEMU_OPTION_realtime:
3798 warn_report("'-realtime mlock=...' is deprecated, please use "
3799 "'-overcommit mem-lock=...' instead");
3800 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3801 optarg, false);
3802 if (!opts) {
3803 exit(1);
3804 }
3805 /* Don't override the -overcommit option if set */
3806 enable_mlock = enable_mlock ||
3807 qemu_opt_get_bool(opts, "mlock", true);
3808 break;
3809 case QEMU_OPTION_overcommit:
3810 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3811 optarg, false);
3812 if (!opts) {
3813 exit(1);
3814 }
3815 /* Don't override the -realtime option if set */
3816 enable_mlock = enable_mlock ||
3817 qemu_opt_get_bool(opts, "mem-lock", false);
3818 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3819 break;
3820 case QEMU_OPTION_msg:
3821 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3822 false);
3823 if (!opts) {
3824 exit(1);
3825 }
3826 configure_msg(opts);
3827 break;
3828 case QEMU_OPTION_dump_vmstate:
3829 if (vmstate_dump_file) {
3830 error_report("only one '-dump-vmstate' "
3831 "option may be given");
3832 exit(1);
3833 }
3834 vmstate_dump_file = fopen(optarg, "w");
3835 if (vmstate_dump_file == NULL) {
3836 error_report("open %s: %s", optarg, strerror(errno));
3837 exit(1);
3838 }
3839 break;
3840 case QEMU_OPTION_enable_sync_profile:
3841 qsp_enable();
3842 break;
3843 case QEMU_OPTION_nouserconfig:
3844 /* Nothing to be parsed here. Especially, do not error out below. */
3845 break;
3846 default:
3847 if (os_parse_cmd_args(popt->index, optarg)) {
3848 error_report("Option not supported in this build");
3849 exit(1);
3850 }
3851 }
3852 }
3853 }
3854 /*
3855 * Clear error location left behind by the loop.
3856 * Best done right after the loop. Do not insert code here!
3857 */
3858 loc_set_none();
3859
3860 user_register_global_props();
3861
3862 replay_configure(icount_opts);
3863
3864 if (incoming && !preconfig_exit_requested) {
3865 error_report("'preconfig' and 'incoming' options are "
3866 "mutually exclusive");
3867 exit(EXIT_FAILURE);
3868 }
3869
3870 configure_rtc(qemu_find_opts_singleton("rtc"));
3871
3872 machine_class = select_machine();
3873 object_set_machine_compat_props(machine_class->compat_props);
3874
3875 set_memory_options(&ram_slots, &maxram_size, machine_class);
3876
3877 os_daemonize();
3878 rcu_disable_atfork();
3879
3880 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3881 error_reportf_err(err, "cannot create PID file: ");
3882 exit(1);
3883 }
3884
3885 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3886 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3887
3888 if (qemu_init_main_loop(&main_loop_err)) {
3889 error_report_err(main_loop_err);
3890 exit(1);
3891 }
3892
3893 #ifdef CONFIG_SECCOMP
3894 olist = qemu_find_opts_err("sandbox", NULL);
3895 if (olist) {
3896 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3897 }
3898 #endif
3899
3900 qemu_opts_foreach(qemu_find_opts("name"),
3901 parse_name, NULL, &error_fatal);
3902
3903 #ifndef _WIN32
3904 qemu_opts_foreach(qemu_find_opts("add-fd"),
3905 parse_add_fd, NULL, &error_fatal);
3906
3907 qemu_opts_foreach(qemu_find_opts("add-fd"),
3908 cleanup_add_fd, NULL, &error_fatal);
3909 #endif
3910
3911 current_machine = MACHINE(object_new(object_class_get_name(
3912 OBJECT_CLASS(machine_class))));
3913 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3914 exit(0);
3915 }
3916 object_property_add_child(object_get_root(), "machine",
3917 OBJECT(current_machine), &error_abort);
3918 object_property_add_child(container_get(OBJECT(current_machine),
3919 "/unattached"),
3920 "sysbus", OBJECT(sysbus_get_default()),
3921 NULL);
3922
3923 if (machine_class->minimum_page_bits) {
3924 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3925 /* This would be a board error: specifying a minimum smaller than
3926 * a target's compile-time fixed setting.
3927 */
3928 g_assert_not_reached();
3929 }
3930 }
3931
3932 cpu_exec_init_all();
3933
3934 if (machine_class->hw_version) {
3935 qemu_set_hw_version(machine_class->hw_version);
3936 }
3937
3938 if (cpu_option && is_help_option(cpu_option)) {
3939 list_cpus(cpu_option);
3940 exit(0);
3941 }
3942
3943 if (!trace_init_backends()) {
3944 exit(1);
3945 }
3946 trace_init_file(trace_file);
3947
3948 /* Open the logfile at this point and set the log mask if necessary.
3949 */
3950 if (log_file) {
3951 qemu_set_log_filename(log_file, &error_fatal);
3952 }
3953
3954 if (log_mask) {
3955 int mask;
3956 mask = qemu_str_to_log_mask(log_mask);
3957 if (!mask) {
3958 qemu_print_log_usage(stdout);
3959 exit(1);
3960 }
3961 qemu_set_log(mask);
3962 } else {
3963 qemu_set_log(0);
3964 }
3965
3966 /* add configured firmware directories */
3967 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3968 for (i = 0; dirs[i] != NULL; i++) {
3969 qemu_add_data_dir(dirs[i]);
3970 }
3971 g_strfreev(dirs);
3972
3973 /* try to find datadir relative to the executable path */
3974 dir = os_find_datadir();
3975 qemu_add_data_dir(dir);
3976 g_free(dir);
3977
3978 /* add the datadir specified when building */
3979 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3980
3981 /* -L help lists the data directories and exits. */
3982 if (list_data_dirs) {
3983 for (i = 0; i < data_dir_idx; i++) {
3984 printf("%s\n", data_dir[i]);
3985 }
3986 exit(0);
3987 }
3988
3989 /* machine_class: default to UP */
3990 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3991 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3992 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3993
3994 /* default to machine_class->default_cpus */
3995 current_machine->smp.cpus = machine_class->default_cpus;
3996 current_machine->smp.max_cpus = machine_class->default_cpus;
3997 current_machine->smp.cores = 1;
3998 current_machine->smp.threads = 1;
3999
4000 machine_class->smp_parse(current_machine,
4001 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4002
4003 /* sanity-check smp_cpus and max_cpus against machine_class */
4004 if (current_machine->smp.cpus < machine_class->min_cpus) {
4005 error_report("Invalid SMP CPUs %d. The min CPUs "
4006 "supported by machine '%s' is %d",
4007 current_machine->smp.cpus,
4008 machine_class->name, machine_class->min_cpus);
4009 exit(1);
4010 }
4011 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
4012 error_report("Invalid SMP CPUs %d. The max CPUs "
4013 "supported by machine '%s' is %d",
4014 current_machine->smp.max_cpus,
4015 machine_class->name, machine_class->max_cpus);
4016 exit(1);
4017 }
4018
4019 /*
4020 * Get the default machine options from the machine if it is not already
4021 * specified either by the configuration file or by the command line.
4022 */
4023 if (machine_class->default_machine_opts) {
4024 qemu_opts_set_defaults(qemu_find_opts("machine"),
4025 machine_class->default_machine_opts, 0);
4026 }
4027
4028 qemu_opts_foreach(qemu_find_opts("device"),
4029 default_driver_check, NULL, NULL);
4030 qemu_opts_foreach(qemu_find_opts("global"),
4031 default_driver_check, NULL, NULL);
4032
4033 if (!vga_model && !default_vga) {
4034 vga_interface_type = VGA_DEVICE;
4035 }
4036 if (!has_defaults || machine_class->no_serial) {
4037 default_serial = 0;
4038 }
4039 if (!has_defaults || machine_class->no_parallel) {
4040 default_parallel = 0;
4041 }
4042 if (!has_defaults || machine_class->no_floppy) {
4043 default_floppy = 0;
4044 }
4045 if (!has_defaults || machine_class->no_cdrom) {
4046 default_cdrom = 0;
4047 }
4048 if (!has_defaults || machine_class->no_sdcard) {
4049 default_sdcard = 0;
4050 }
4051 if (!has_defaults) {
4052 default_monitor = 0;
4053 default_net = 0;
4054 default_vga = 0;
4055 }
4056
4057 if (is_daemonized()) {
4058 if (!preconfig_exit_requested) {
4059 error_report("'preconfig' and 'daemonize' options are "
4060 "mutually exclusive");
4061 exit(EXIT_FAILURE);
4062 }
4063
4064 /* According to documentation and historically, -nographic redirects
4065 * serial port, parallel port and monitor to stdio, which does not work
4066 * with -daemonize. We can redirect these to null instead, but since
4067 * -nographic is legacy, let's just error out.
4068 * We disallow -nographic only if all other ports are not redirected
4069 * explicitly, to not break existing legacy setups which uses
4070 * -nographic _and_ redirects all ports explicitly - this is valid
4071 * usage, -nographic is just a no-op in this case.
4072 */
4073 if (nographic
4074 && (default_parallel || default_serial || default_monitor)) {
4075 error_report("-nographic cannot be used with -daemonize");
4076 exit(1);
4077 }
4078 #ifdef CONFIG_CURSES
4079 if (dpy.type == DISPLAY_TYPE_CURSES) {
4080 error_report("curses display cannot be used with -daemonize");
4081 exit(1);
4082 }
4083 #endif
4084 }
4085
4086 if (nographic) {
4087 if (default_parallel)
4088 add_device_config(DEV_PARALLEL, "null");
4089 if (default_serial && default_monitor) {
4090 add_device_config(DEV_SERIAL, "mon:stdio");
4091 } else {
4092 if (default_serial)
4093 add_device_config(DEV_SERIAL, "stdio");
4094 if (default_monitor)
4095 monitor_parse("stdio", "readline", false);
4096 }
4097 } else {
4098 if (default_serial)
4099 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4100 if (default_parallel)
4101 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4102 if (default_monitor)
4103 monitor_parse("vc:80Cx24C", "readline", false);
4104 }
4105
4106 #if defined(CONFIG_VNC)
4107 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4108 display_remote++;
4109 }
4110 #endif
4111 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4112 if (!qemu_display_find_default(&dpy)) {
4113 dpy.type = DISPLAY_TYPE_NONE;
4114 #if defined(CONFIG_VNC)
4115 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4116 #endif
4117 }
4118 }
4119 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4120 dpy.type = DISPLAY_TYPE_NONE;
4121 }
4122
4123 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4124 error_report("-alt-grab and -ctrl-grab are only valid "
4125 "for SDL, ignoring option");
4126 }
4127 if (dpy.has_window_close &&
4128 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4129 error_report("-no-quit is only valid for GTK and SDL, "
4130 "ignoring option");
4131 }
4132
4133 qemu_display_early_init(&dpy);
4134 qemu_console_early_init();
4135
4136 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4137 #if defined(CONFIG_OPENGL)
4138 error_report("OpenGL is not supported by the display");
4139 #else
4140 error_report("OpenGL support is disabled");
4141 #endif
4142 exit(1);
4143 }
4144
4145 page_size_init();
4146 socket_init();
4147
4148 qemu_opts_foreach(qemu_find_opts("object"),
4149 user_creatable_add_opts_foreach,
4150 object_create_initial, &error_fatal);
4151
4152 qemu_opts_foreach(qemu_find_opts("chardev"),
4153 chardev_init_func, NULL, &error_fatal);
4154 /* now chardevs have been created we may have semihosting to connect */
4155 qemu_semihosting_connect_chardevs();
4156
4157 #ifdef CONFIG_VIRTFS
4158 qemu_opts_foreach(qemu_find_opts("fsdev"),
4159 fsdev_init_func, NULL, &error_fatal);
4160 #endif
4161
4162 if (qemu_opts_foreach(qemu_find_opts("device"),
4163 device_help_func, NULL, NULL)) {
4164 exit(0);
4165 }
4166
4167 /*
4168 * Note: we need to create block backends before
4169 * machine_set_property(), so machine properties can refer to
4170 * them.
4171 */
4172 configure_blockdev(&bdo_queue, machine_class, snapshot);
4173
4174 machine_opts = qemu_get_machine_opts();
4175 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4176 &error_fatal);
4177 current_machine->ram_size = ram_size;
4178 current_machine->maxram_size = maxram_size;
4179 current_machine->ram_slots = ram_slots;
4180
4181 /*
4182 * Note: uses machine properties such as kernel-irqchip, must run
4183 * after machine_set_property().
4184 */
4185 configure_accelerator(current_machine, argv[0]);
4186
4187 /*
4188 * Beware, QOM objects created before this point miss global and
4189 * compat properties.
4190 *
4191 * Global properties get set up by qdev_prop_register_global(),
4192 * called from user_register_global_props(), and certain option
4193 * desugaring. Also in CPU feature desugaring (buried in
4194 * parse_cpu_option()), which happens below this point, but may
4195 * only target the CPU type, which can only be created after
4196 * parse_cpu_option() returned the type.
4197 *
4198 * Machine compat properties: object_set_machine_compat_props().
4199 * Accelerator compat props: object_set_accelerator_compat_props(),
4200 * called from configure_accelerator().
4201 */
4202
4203 if (!qtest_enabled() && machine_class->deprecation_reason) {
4204 error_report("Machine type '%s' is deprecated: %s",
4205 machine_class->name, machine_class->deprecation_reason);
4206 }
4207
4208 /*
4209 * Note: creates a QOM object, must run only after global and
4210 * compat properties have been set up.
4211 */
4212 migration_object_init();
4213
4214 if (qtest_chrdev) {
4215 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4216 }
4217
4218 machine_opts = qemu_get_machine_opts();
4219 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4220 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4221 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4222 bios_name = qemu_opt_get(machine_opts, "firmware");
4223
4224 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4225 if (opts) {
4226 boot_order = qemu_opt_get(opts, "order");
4227 if (boot_order) {
4228 validate_bootdevices(boot_order, &error_fatal);
4229 }
4230
4231 boot_once = qemu_opt_get(opts, "once");
4232 if (boot_once) {
4233 validate_bootdevices(boot_once, &error_fatal);
4234 }
4235
4236 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4237 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4238 }
4239
4240 if (!boot_order) {
4241 boot_order = machine_class->default_boot_order;
4242 }
4243
4244 if (!kernel_cmdline) {
4245 kernel_cmdline = "";
4246 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4247 }
4248
4249 linux_boot = (kernel_filename != NULL);
4250
4251 if (!linux_boot && *kernel_cmdline != '\0') {
4252 error_report("-append only allowed with -kernel option");
4253 exit(1);
4254 }
4255
4256 if (!linux_boot && initrd_filename != NULL) {
4257 error_report("-initrd only allowed with -kernel option");
4258 exit(1);
4259 }
4260
4261 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4262 /* fall back to the -kernel/-append */
4263 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4264 }
4265
4266 /* spice needs the timers to be initialized by this point */
4267 qemu_spice_init();
4268
4269 cpu_ticks_init();
4270 if (icount_opts) {
4271 if (!tcg_enabled()) {
4272 error_report("-icount is not allowed with hardware virtualization");
4273 exit(1);
4274 }
4275 configure_icount(icount_opts, &error_abort);
4276 qemu_opts_del(icount_opts);
4277 }
4278
4279 if (tcg_enabled()) {
4280 qemu_tcg_configure(accel_opts, &error_fatal);
4281 }
4282
4283 if (default_net) {
4284 QemuOptsList *net = qemu_find_opts("net");
4285 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4286 #ifdef CONFIG_SLIRP
4287 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4288 #endif
4289 }
4290
4291 if (net_init_clients(&err) < 0) {
4292 error_report_err(err);
4293 exit(1);
4294 }
4295
4296 qemu_opts_foreach(qemu_find_opts("object"),
4297 user_creatable_add_opts_foreach,
4298 object_create_delayed, &error_fatal);
4299
4300 tpm_init();
4301
4302 /* init the bluetooth world */
4303 if (foreach_device_config(DEV_BT, bt_parse))
4304 exit(1);
4305
4306 if (!xen_enabled()) {
4307 /* On 32-bit hosts, QEMU is limited by virtual address space */
4308 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4309 error_report("at most 2047 MB RAM can be simulated");
4310 exit(1);
4311 }
4312 }
4313
4314 blk_mig_init();
4315 ram_mig_init();
4316 dirty_bitmap_mig_init();
4317
4318 qemu_opts_foreach(qemu_find_opts("mon"),
4319 mon_init_func, NULL, &error_fatal);
4320
4321 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4322 exit(1);
4323 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4324 exit(1);
4325 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4326 exit(1);
4327
4328 /* If no default VGA is requested, the default is "none". */
4329 if (default_vga) {
4330 vga_model = get_default_vga_model(machine_class);
4331 }
4332 if (vga_model) {
4333 select_vgahw(machine_class, vga_model);
4334 }
4335
4336 if (watchdog) {
4337 i = select_watchdog(watchdog);
4338 if (i > 0)
4339 exit (i == 1 ? 1 : 0);
4340 }
4341
4342 /* This checkpoint is required by replay to separate prior clock
4343 reading from the other reads, because timer polling functions query
4344 clock values from the log. */
4345 replay_checkpoint(CHECKPOINT_INIT);
4346 qdev_machine_init();
4347
4348 current_machine->boot_order = boot_order;
4349
4350 /* parse features once if machine provides default cpu_type */
4351 current_machine->cpu_type = machine_class->default_cpu_type;
4352 if (cpu_option) {
4353 current_machine->cpu_type = parse_cpu_option(cpu_option);
4354 }
4355 parse_numa_opts(current_machine);
4356
4357 /* do monitor/qmp handling at preconfig state if requested */
4358 main_loop();
4359
4360 audio_init_audiodevs();
4361
4362 /* from here on runstate is RUN_STATE_PRELAUNCH */
4363 machine_run_board_init(current_machine);
4364
4365 realtime_init();
4366
4367 soundhw_init();
4368
4369 if (hax_enabled()) {
4370 hax_sync_vcpus();
4371 }
4372
4373 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4374 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4375
4376 /* init USB devices */
4377 if (machine_usb(current_machine)) {
4378 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4379 exit(1);
4380 }
4381
4382 /* Check if IGD GFX passthrough. */
4383 igd_gfx_passthru();
4384
4385 /* init generic devices */
4386 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4387 qemu_opts_foreach(qemu_find_opts("device"),
4388 device_init_func, NULL, &error_fatal);
4389
4390 cpu_synchronize_all_post_init();
4391
4392 rom_reset_order_override();
4393
4394 /* Did we create any drives that we failed to create a device for? */
4395 drive_check_orphaned();
4396
4397 /* Don't warn about the default network setup that you get if
4398 * no command line -net or -netdev options are specified. There
4399 * are two cases that we would otherwise complain about:
4400 * (1) board doesn't support a NIC but the implicit "-net nic"
4401 * requested one
4402 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4403 * sets up a nic that isn't connected to anything.
4404 */
4405 if (!default_net && (!qtest_enabled() || has_defaults)) {
4406 net_check_clients();
4407 }
4408
4409 if (boot_once) {
4410 qemu_boot_set(boot_once, &error_fatal);
4411 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4412 }
4413
4414 /* init local displays */
4415 ds = init_displaystate();
4416 qemu_display_init(ds, &dpy);
4417
4418 /* must be after terminal init, SDL library changes signal handlers */
4419 os_setup_signal_handling();
4420
4421 /* init remote displays */
4422 #ifdef CONFIG_VNC
4423 qemu_opts_foreach(qemu_find_opts("vnc"),
4424 vnc_init_func, NULL, &error_fatal);
4425 #endif
4426
4427 if (using_spice) {
4428 qemu_spice_display_init();
4429 }
4430
4431 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4432 exit(1);
4433 }
4434
4435 qdev_machine_creation_done();
4436
4437 /* TODO: once all bus devices are qdevified, this should be done
4438 * when bus is created by qdev.c */
4439 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4440 qemu_run_machine_init_done_notifiers();
4441
4442 if (rom_check_and_register_reset() != 0) {
4443 error_report("rom check and register reset failed");
4444 exit(1);
4445 }
4446
4447 replay_start();
4448
4449 /* This checkpoint is required by replay to separate prior clock
4450 reading from the other reads, because timer polling functions query
4451 clock values from the log. */
4452 replay_checkpoint(CHECKPOINT_RESET);
4453 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4454 register_global_state();
4455 if (loadvm) {
4456 Error *local_err = NULL;
4457 if (load_snapshot(loadvm, &local_err) < 0) {
4458 error_report_err(local_err);
4459 autostart = 0;
4460 exit(1);
4461 }
4462 }
4463 if (replay_mode != REPLAY_MODE_NONE) {
4464 replay_vmstate_init();
4465 }
4466
4467 qdev_prop_check_globals();
4468 if (vmstate_dump_file) {
4469 /* dump and exit */
4470 dump_vmstate_json_to_file(vmstate_dump_file);
4471 return 0;
4472 }
4473
4474 if (incoming) {
4475 Error *local_err = NULL;
4476 qemu_start_incoming_migration(incoming, &local_err);
4477 if (local_err) {
4478 error_reportf_err(local_err, "-incoming %s: ", incoming);
4479 exit(1);
4480 }
4481 } else if (autostart) {
4482 vm_start();
4483 }
4484
4485 accel_setup_post(current_machine);
4486 os_setup_post();
4487
4488 main_loop();
4489
4490 gdbserver_cleanup();
4491
4492 /*
4493 * cleaning up the migration object cancels any existing migration
4494 * try to do this early so that it also stops using devices.
4495 */
4496 migration_shutdown();
4497
4498 /*
4499 * We must cancel all block jobs while the block layer is drained,
4500 * or cancelling will be affected by throttling and thus may block
4501 * for an extended period of time.
4502 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4503 * it in the drained section.
4504 * We do not need to end this section, because we do not want any
4505 * requests happening from here on anyway.
4506 */
4507 bdrv_drain_all_begin();
4508
4509 /* No more vcpu or device emulation activity beyond this point */
4510 vm_shutdown();
4511
4512 job_cancel_sync_all();
4513 bdrv_close_all();
4514
4515 res_free();
4516
4517 /* vhost-user must be cleaned up before chardevs. */
4518 tpm_cleanup();
4519 net_cleanup();
4520 audio_cleanup();
4521 monitor_cleanup();
4522 qemu_chr_cleanup();
4523 user_creatable_cleanup();
4524 /* TODO: unref root container, check all devices are ok */
4525
4526 return 0;
4527 }
QEmu