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ppc/xive: Provide backlog support
[qemu.git] / vl.c
blobedd5390110b273fb401261ed7615bf1a4aad0f71
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 /* no break */
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 void qemu_system_guest_panicked(GuestPanicInformation *info)
1561 {
1562 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1563
1564 if (current_cpu) {
1565 current_cpu->crash_occurred = true;
1566 }
1567 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1568 !!info, info);
1569 vm_stop(RUN_STATE_GUEST_PANICKED);
1570 if (!no_shutdown) {
1571 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1572 !!info, info);
1573 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1574 }
1575
1576 if (info) {
1577 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1578 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1579 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1580 info->u.hyper_v.arg1,
1581 info->u.hyper_v.arg2,
1582 info->u.hyper_v.arg3,
1583 info->u.hyper_v.arg4,
1584 info->u.hyper_v.arg5);
1585 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1586 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1587 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1588 info->u.s390.core,
1589 S390CrashReason_str(info->u.s390.reason),
1590 info->u.s390.psw_mask,
1591 info->u.s390.psw_addr);
1592 }
1593 qapi_free_GuestPanicInformation(info);
1594 }
1595 }
1596
1597 void qemu_system_reset_request(ShutdownCause reason)
1598 {
1599 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1600 shutdown_requested = reason;
1601 } else {
1602 reset_requested = reason;
1603 }
1604 cpu_stop_current();
1605 qemu_notify_event();
1606 }
1607
1608 static void qemu_system_suspend(void)
1609 {
1610 pause_all_vcpus();
1611 notifier_list_notify(&suspend_notifiers, NULL);
1612 runstate_set(RUN_STATE_SUSPENDED);
1613 qapi_event_send_suspend();
1614 }
1615
1616 void qemu_system_suspend_request(void)
1617 {
1618 if (runstate_check(RUN_STATE_SUSPENDED)) {
1619 return;
1620 }
1621 suspend_requested = 1;
1622 cpu_stop_current();
1623 qemu_notify_event();
1624 }
1625
1626 void qemu_register_suspend_notifier(Notifier *notifier)
1627 {
1628 notifier_list_add(&suspend_notifiers, notifier);
1629 }
1630
1631 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1632 {
1633 trace_system_wakeup_request(reason);
1634
1635 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1636 error_setg(errp,
1637 "Unable to wake up: guest is not in suspended state");
1638 return;
1639 }
1640 if (!(wakeup_reason_mask & (1 << reason))) {
1641 return;
1642 }
1643 runstate_set(RUN_STATE_RUNNING);
1644 wakeup_reason = reason;
1645 qemu_notify_event();
1646 }
1647
1648 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1649 {
1650 if (enabled) {
1651 wakeup_reason_mask |= (1 << reason);
1652 } else {
1653 wakeup_reason_mask &= ~(1 << reason);
1654 }
1655 }
1656
1657 void qemu_register_wakeup_notifier(Notifier *notifier)
1658 {
1659 notifier_list_add(&wakeup_notifiers, notifier);
1660 }
1661
1662 void qemu_register_wakeup_support(void)
1663 {
1664 wakeup_suspend_enabled = true;
1665 }
1666
1667 bool qemu_wakeup_suspend_enabled(void)
1668 {
1669 return wakeup_suspend_enabled;
1670 }
1671
1672 void qemu_system_killed(int signal, pid_t pid)
1673 {
1674 shutdown_signal = signal;
1675 shutdown_pid = pid;
1676 no_shutdown = 0;
1677
1678 /* Cannot call qemu_system_shutdown_request directly because
1679 * we are in a signal handler.
1680 */
1681 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1682 qemu_notify_event();
1683 }
1684
1685 void qemu_system_shutdown_request(ShutdownCause reason)
1686 {
1687 trace_qemu_system_shutdown_request(reason);
1688 replay_shutdown_request(reason);
1689 shutdown_requested = reason;
1690 qemu_notify_event();
1691 }
1692
1693 static void qemu_system_powerdown(void)
1694 {
1695 qapi_event_send_powerdown();
1696 notifier_list_notify(&powerdown_notifiers, NULL);
1697 }
1698
1699 static void qemu_system_shutdown(ShutdownCause cause)
1700 {
1701 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1702 notifier_list_notify(&shutdown_notifiers, &cause);
1703 }
1704
1705 void qemu_system_powerdown_request(void)
1706 {
1707 trace_qemu_system_powerdown_request();
1708 powerdown_requested = 1;
1709 qemu_notify_event();
1710 }
1711
1712 void qemu_register_powerdown_notifier(Notifier *notifier)
1713 {
1714 notifier_list_add(&powerdown_notifiers, notifier);
1715 }
1716
1717 void qemu_register_shutdown_notifier(Notifier *notifier)
1718 {
1719 notifier_list_add(&shutdown_notifiers, notifier);
1720 }
1721
1722 void qemu_system_debug_request(void)
1723 {
1724 debug_requested = 1;
1725 qemu_notify_event();
1726 }
1727
1728 static bool main_loop_should_exit(void)
1729 {
1730 RunState r;
1731 ShutdownCause request;
1732
1733 if (preconfig_exit_requested) {
1734 if (runstate_check(RUN_STATE_PRECONFIG)) {
1735 runstate_set(RUN_STATE_PRELAUNCH);
1736 }
1737 preconfig_exit_requested = false;
1738 return true;
1739 }
1740 if (qemu_debug_requested()) {
1741 vm_stop(RUN_STATE_DEBUG);
1742 }
1743 if (qemu_suspend_requested()) {
1744 qemu_system_suspend();
1745 }
1746 request = qemu_shutdown_requested();
1747 if (request) {
1748 qemu_kill_report();
1749 qemu_system_shutdown(request);
1750 if (no_shutdown) {
1751 vm_stop(RUN_STATE_SHUTDOWN);
1752 } else {
1753 return true;
1754 }
1755 }
1756 request = qemu_reset_requested();
1757 if (request) {
1758 pause_all_vcpus();
1759 qemu_system_reset(request);
1760 resume_all_vcpus();
1761 if (!runstate_check(RUN_STATE_RUNNING) &&
1762 !runstate_check(RUN_STATE_INMIGRATE)) {
1763 runstate_set(RUN_STATE_PRELAUNCH);
1764 }
1765 }
1766 if (qemu_wakeup_requested()) {
1767 pause_all_vcpus();
1768 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1769 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1770 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1771 resume_all_vcpus();
1772 qapi_event_send_wakeup();
1773 }
1774 if (qemu_powerdown_requested()) {
1775 qemu_system_powerdown();
1776 }
1777 if (qemu_vmstop_requested(&r)) {
1778 vm_stop(r);
1779 }
1780 return false;
1781 }
1782
1783 static void main_loop(void)
1784 {
1785 #ifdef CONFIG_PROFILER
1786 int64_t ti;
1787 #endif
1788 while (!main_loop_should_exit()) {
1789 #ifdef CONFIG_PROFILER
1790 ti = profile_getclock();
1791 #endif
1792 main_loop_wait(false);
1793 #ifdef CONFIG_PROFILER
1794 dev_time += profile_getclock() - ti;
1795 #endif
1796 }
1797 }
1798
1799 static void version(void)
1800 {
1801 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1802 QEMU_COPYRIGHT "\n");
1803 }
1804
1805 static void help(int exitcode)
1806 {
1807 version();
1808 printf("usage: %s [options] [disk_image]\n\n"
1809 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1810 error_get_progname());
1811
1812 #define QEMU_OPTIONS_GENERATE_HELP
1813 #include "qemu-options-wrapper.h"
1814
1815 printf("\nDuring emulation, the following keys are useful:\n"
1816 "ctrl-alt-f toggle full screen\n"
1817 "ctrl-alt-n switch to virtual console 'n'\n"
1818 "ctrl-alt toggle mouse and keyboard grab\n"
1819 "\n"
1820 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1821 "\n"
1822 QEMU_HELP_BOTTOM "\n");
1823
1824 exit(exitcode);
1825 }
1826
1827 #define HAS_ARG 0x0001
1828
1829 typedef struct QEMUOption {
1830 const char *name;
1831 int flags;
1832 int index;
1833 uint32_t arch_mask;
1834 } QEMUOption;
1835
1836 static const QEMUOption qemu_options[] = {
1837 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1838 #define QEMU_OPTIONS_GENERATE_OPTIONS
1839 #include "qemu-options-wrapper.h"
1840 { NULL },
1841 };
1842
1843 typedef struct VGAInterfaceInfo {
1844 const char *opt_name; /* option name */
1845 const char *name; /* human-readable name */
1846 /* Class names indicating that support is available.
1847 * If no class is specified, the interface is always available */
1848 const char *class_names[2];
1849 } VGAInterfaceInfo;
1850
1851 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1852 [VGA_NONE] = {
1853 .opt_name = "none",
1854 .name = "no graphic card",
1855 },
1856 [VGA_STD] = {
1857 .opt_name = "std",
1858 .name = "standard VGA",
1859 .class_names = { "VGA", "isa-vga" },
1860 },
1861 [VGA_CIRRUS] = {
1862 .opt_name = "cirrus",
1863 .name = "Cirrus VGA",
1864 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1865 },
1866 [VGA_VMWARE] = {
1867 .opt_name = "vmware",
1868 .name = "VMWare SVGA",
1869 .class_names = { "vmware-svga" },
1870 },
1871 [VGA_VIRTIO] = {
1872 .opt_name = "virtio",
1873 .name = "Virtio VGA",
1874 .class_names = { "virtio-vga" },
1875 },
1876 [VGA_QXL] = {
1877 .opt_name = "qxl",
1878 .name = "QXL VGA",
1879 .class_names = { "qxl-vga" },
1880 },
1881 [VGA_TCX] = {
1882 .opt_name = "tcx",
1883 .name = "TCX framebuffer",
1884 .class_names = { "SUNW,tcx" },
1885 },
1886 [VGA_CG3] = {
1887 .opt_name = "cg3",
1888 .name = "CG3 framebuffer",
1889 .class_names = { "cgthree" },
1890 },
1891 [VGA_XENFB] = {
1892 .opt_name = "xenfb",
1893 .name = "Xen paravirtualized framebuffer",
1894 },
1895 };
1896
1897 static bool vga_interface_available(VGAInterfaceType t)
1898 {
1899 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1900
1901 assert(t < VGA_TYPE_MAX);
1902 return !ti->class_names[0] ||
1903 object_class_by_name(ti->class_names[0]) ||
1904 object_class_by_name(ti->class_names[1]);
1905 }
1906
1907 static const char *
1908 get_default_vga_model(const MachineClass *machine_class)
1909 {
1910 if (machine_class->default_display) {
1911 return machine_class->default_display;
1912 } else if (vga_interface_available(VGA_CIRRUS)) {
1913 return "cirrus";
1914 } else if (vga_interface_available(VGA_STD)) {
1915 return "std";
1916 }
1917
1918 return NULL;
1919 }
1920
1921 static void select_vgahw(const MachineClass *machine_class, const char *p)
1922 {
1923 const char *opts;
1924 int t;
1925
1926 if (g_str_equal(p, "help")) {
1927 const char *def = get_default_vga_model(machine_class);
1928
1929 for (t = 0; t < VGA_TYPE_MAX; t++) {
1930 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1931
1932 if (vga_interface_available(t) && ti->opt_name) {
1933 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1934 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1935 }
1936 }
1937 exit(0);
1938 }
1939
1940 assert(vga_interface_type == VGA_NONE);
1941 for (t = 0; t < VGA_TYPE_MAX; t++) {
1942 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1943 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1944 if (!vga_interface_available(t)) {
1945 error_report("%s not available", ti->name);
1946 exit(1);
1947 }
1948 vga_interface_type = t;
1949 break;
1950 }
1951 }
1952 if (t == VGA_TYPE_MAX) {
1953 invalid_vga:
1954 error_report("unknown vga type: %s", p);
1955 exit(1);
1956 }
1957 while (*opts) {
1958 const char *nextopt;
1959
1960 if (strstart(opts, ",retrace=", &nextopt)) {
1961 opts = nextopt;
1962 if (strstart(opts, "dumb", &nextopt))
1963 vga_retrace_method = VGA_RETRACE_DUMB;
1964 else if (strstart(opts, "precise", &nextopt))
1965 vga_retrace_method = VGA_RETRACE_PRECISE;
1966 else goto invalid_vga;
1967 } else goto invalid_vga;
1968 opts = nextopt;
1969 }
1970 }
1971
1972 static void parse_display_qapi(const char *optarg)
1973 {
1974 DisplayOptions *opts;
1975 Visitor *v;
1976
1977 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1978
1979 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1980 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1981
1982 qapi_free_DisplayOptions(opts);
1983 visit_free(v);
1984 }
1985
1986 DisplayOptions *qmp_query_display_options(Error **errp)
1987 {
1988 return QAPI_CLONE(DisplayOptions, &dpy);
1989 }
1990
1991 static void parse_display(const char *p)
1992 {
1993 const char *opts;
1994
1995 if (strstart(p, "sdl", &opts)) {
1996 /*
1997 * sdl DisplayType needs hand-crafted parser instead of
1998 * parse_display_qapi() due to some options not in
1999 * DisplayOptions, specifically:
2000 * - frame
2001 * Already deprecated.
2002 * - ctrl_grab + alt_grab
2003 * Not clear yet what happens to them long-term. Should
2004 * replaced by something better or deprecated and dropped.
2005 */
2006 dpy.type = DISPLAY_TYPE_SDL;
2007 while (*opts) {
2008 const char *nextopt;
2009
2010 if (strstart(opts, ",alt_grab=", &nextopt)) {
2011 opts = nextopt;
2012 if (strstart(opts, "on", &nextopt)) {
2013 alt_grab = 1;
2014 } else if (strstart(opts, "off", &nextopt)) {
2015 alt_grab = 0;
2016 } else {
2017 goto invalid_sdl_args;
2018 }
2019 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2020 opts = nextopt;
2021 if (strstart(opts, "on", &nextopt)) {
2022 ctrl_grab = 1;
2023 } else if (strstart(opts, "off", &nextopt)) {
2024 ctrl_grab = 0;
2025 } else {
2026 goto invalid_sdl_args;
2027 }
2028 } else if (strstart(opts, ",window_close=", &nextopt)) {
2029 opts = nextopt;
2030 dpy.has_window_close = true;
2031 if (strstart(opts, "on", &nextopt)) {
2032 dpy.window_close = true;
2033 } else if (strstart(opts, "off", &nextopt)) {
2034 dpy.window_close = false;
2035 } else {
2036 goto invalid_sdl_args;
2037 }
2038 } else if (strstart(opts, ",gl=", &nextopt)) {
2039 opts = nextopt;
2040 dpy.has_gl = true;
2041 if (strstart(opts, "on", &nextopt)) {
2042 dpy.gl = DISPLAYGL_MODE_ON;
2043 } else if (strstart(opts, "core", &nextopt)) {
2044 dpy.gl = DISPLAYGL_MODE_CORE;
2045 } else if (strstart(opts, "es", &nextopt)) {
2046 dpy.gl = DISPLAYGL_MODE_ES;
2047 } else if (strstart(opts, "off", &nextopt)) {
2048 dpy.gl = DISPLAYGL_MODE_OFF;
2049 } else {
2050 goto invalid_sdl_args;
2051 }
2052 } else {
2053 invalid_sdl_args:
2054 error_report("invalid SDL option string");
2055 exit(1);
2056 }
2057 opts = nextopt;
2058 }
2059 } else if (strstart(p, "vnc", &opts)) {
2060 /*
2061 * vnc isn't a (local) DisplayType but a protocol for remote
2062 * display access.
2063 */
2064 if (*opts == '=') {
2065 vnc_parse(opts + 1, &error_fatal);
2066 } else {
2067 error_report("VNC requires a display argument vnc=<display>");
2068 exit(1);
2069 }
2070 } else {
2071 parse_display_qapi(p);
2072 }
2073 }
2074
2075 char *qemu_find_file(int type, const char *name)
2076 {
2077 int i;
2078 const char *subdir;
2079 char *buf;
2080
2081 /* Try the name as a straight path first */
2082 if (access(name, R_OK) == 0) {
2083 trace_load_file(name, name);
2084 return g_strdup(name);
2085 }
2086
2087 switch (type) {
2088 case QEMU_FILE_TYPE_BIOS:
2089 subdir = "";
2090 break;
2091 case QEMU_FILE_TYPE_KEYMAP:
2092 subdir = "keymaps/";
2093 break;
2094 default:
2095 abort();
2096 }
2097
2098 for (i = 0; i < data_dir_idx; i++) {
2099 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2100 if (access(buf, R_OK) == 0) {
2101 trace_load_file(name, buf);
2102 return buf;
2103 }
2104 g_free(buf);
2105 }
2106 return NULL;
2107 }
2108
2109 static void qemu_add_data_dir(const char *path)
2110 {
2111 int i;
2112
2113 if (path == NULL) {
2114 return;
2115 }
2116 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2117 return;
2118 }
2119 for (i = 0; i < data_dir_idx; i++) {
2120 if (strcmp(data_dir[i], path) == 0) {
2121 return; /* duplicate */
2122 }
2123 }
2124 data_dir[data_dir_idx++] = g_strdup(path);
2125 }
2126
2127 static inline bool nonempty_str(const char *str)
2128 {
2129 return str && *str;
2130 }
2131
2132 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2133 {
2134 gchar *buf;
2135 size_t size;
2136 const char *name, *file, *str;
2137 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2138
2139 if (fw_cfg == NULL) {
2140 error_setg(errp, "fw_cfg device not available");
2141 return -1;
2142 }
2143 name = qemu_opt_get(opts, "name");
2144 file = qemu_opt_get(opts, "file");
2145 str = qemu_opt_get(opts, "string");
2146
2147 /* we need name and either a file or the content string */
2148 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2149 error_setg(errp, "invalid argument(s)");
2150 return -1;
2151 }
2152 if (nonempty_str(file) && nonempty_str(str)) {
2153 error_setg(errp, "file and string are mutually exclusive");
2154 return -1;
2155 }
2156 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2157 error_setg(errp, "name too long (max. %d char)",
2158 FW_CFG_MAX_FILE_PATH - 1);
2159 return -1;
2160 }
2161 if (strncmp(name, "opt/", 4) != 0) {
2162 warn_report("externally provided fw_cfg item names "
2163 "should be prefixed with \"opt/\"");
2164 }
2165 if (nonempty_str(str)) {
2166 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2167 buf = g_memdup(str, size);
2168 } else {
2169 GError *err = NULL;
2170 if (!g_file_get_contents(file, &buf, &size, &err)) {
2171 error_setg(errp, "can't load %s: %s", file, err->message);
2172 g_error_free(err);
2173 return -1;
2174 }
2175 }
2176 /* For legacy, keep user files in a specific global order. */
2177 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2178 fw_cfg_add_file(fw_cfg, name, buf, size);
2179 fw_cfg_reset_order_override(fw_cfg);
2180 return 0;
2181 }
2182
2183 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2184 {
2185 return qdev_device_help(opts);
2186 }
2187
2188 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2189 {
2190 DeviceState *dev;
2191
2192 dev = qdev_device_add(opts, errp);
2193 if (!dev) {
2194 return -1;
2195 }
2196 object_unref(OBJECT(dev));
2197 return 0;
2198 }
2199
2200 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2201 {
2202 Error *local_err = NULL;
2203
2204 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2205 if (local_err) {
2206 error_propagate(errp, local_err);
2207 return -1;
2208 }
2209 exit(0);
2210 }
2211 return 0;
2212 }
2213
2214 #ifdef CONFIG_VIRTFS
2215 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2216 {
2217 return qemu_fsdev_add(opts, errp);
2218 }
2219 #endif
2220
2221 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2222 {
2223 Chardev *chr;
2224 bool qmp;
2225 bool pretty = false;
2226 const char *chardev;
2227 const char *mode;
2228
2229 mode = qemu_opt_get(opts, "mode");
2230 if (mode == NULL) {
2231 mode = "readline";
2232 }
2233 if (strcmp(mode, "readline") == 0) {
2234 qmp = false;
2235 } else if (strcmp(mode, "control") == 0) {
2236 qmp = true;
2237 } else {
2238 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2239 return -1;
2240 }
2241
2242 if (!qmp && qemu_opt_get(opts, "pretty")) {
2243 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2244 "and will be removed in future versions");
2245 }
2246 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2247 pretty = true;
2248 }
2249
2250 chardev = qemu_opt_get(opts, "chardev");
2251 if (!chardev) {
2252 error_report("chardev is required");
2253 exit(1);
2254 }
2255 chr = qemu_chr_find(chardev);
2256 if (chr == NULL) {
2257 error_setg(errp, "chardev \"%s\" not found", chardev);
2258 return -1;
2259 }
2260
2261 if (qmp) {
2262 monitor_init_qmp(chr, pretty);
2263 } else {
2264 monitor_init_hmp(chr, true);
2265 }
2266 return 0;
2267 }
2268
2269 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2270 {
2271 static int monitor_device_index = 0;
2272 QemuOpts *opts;
2273 const char *p;
2274 char label[32];
2275
2276 if (strstart(optarg, "chardev:", &p)) {
2277 snprintf(label, sizeof(label), "%s", p);
2278 } else {
2279 snprintf(label, sizeof(label), "compat_monitor%d",
2280 monitor_device_index);
2281 opts = qemu_chr_parse_compat(label, optarg, true);
2282 if (!opts) {
2283 error_report("parse error: %s", optarg);
2284 exit(1);
2285 }
2286 }
2287
2288 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2289 qemu_opt_set(opts, "mode", mode, &error_abort);
2290 qemu_opt_set(opts, "chardev", label, &error_abort);
2291 if (!strcmp(mode, "control")) {
2292 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2293 } else {
2294 assert(pretty == false);
2295 }
2296 monitor_device_index++;
2297 }
2298
2299 struct device_config {
2300 enum {
2301 DEV_USB, /* -usbdevice */
2302 DEV_BT, /* -bt */
2303 DEV_SERIAL, /* -serial */
2304 DEV_PARALLEL, /* -parallel */
2305 DEV_DEBUGCON, /* -debugcon */
2306 DEV_GDB, /* -gdb, -s */
2307 DEV_SCLP, /* s390 sclp */
2308 } type;
2309 const char *cmdline;
2310 Location loc;
2311 QTAILQ_ENTRY(device_config) next;
2312 };
2313
2314 static QTAILQ_HEAD(, device_config) device_configs =
2315 QTAILQ_HEAD_INITIALIZER(device_configs);
2316
2317 static void add_device_config(int type, const char *cmdline)
2318 {
2319 struct device_config *conf;
2320
2321 conf = g_malloc0(sizeof(*conf));
2322 conf->type = type;
2323 conf->cmdline = cmdline;
2324 loc_save(&conf->loc);
2325 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2326 }
2327
2328 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2329 {
2330 struct device_config *conf;
2331 int rc;
2332
2333 QTAILQ_FOREACH(conf, &device_configs, next) {
2334 if (conf->type != type)
2335 continue;
2336 loc_push_restore(&conf->loc);
2337 rc = func(conf->cmdline);
2338 loc_pop(&conf->loc);
2339 if (rc) {
2340 return rc;
2341 }
2342 }
2343 return 0;
2344 }
2345
2346 static int serial_parse(const char *devname)
2347 {
2348 int index = num_serial_hds;
2349 char label[32];
2350
2351 if (strcmp(devname, "none") == 0)
2352 return 0;
2353 snprintf(label, sizeof(label), "serial%d", index);
2354 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2355
2356 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2357 if (!serial_hds[index]) {
2358 error_report("could not connect serial device"
2359 " to character backend '%s'", devname);
2360 return -1;
2361 }
2362 num_serial_hds++;
2363 return 0;
2364 }
2365
2366 Chardev *serial_hd(int i)
2367 {
2368 assert(i >= 0);
2369 if (i < num_serial_hds) {
2370 return serial_hds[i];
2371 }
2372 return NULL;
2373 }
2374
2375 int serial_max_hds(void)
2376 {
2377 return num_serial_hds;
2378 }
2379
2380 static int parallel_parse(const char *devname)
2381 {
2382 static int index = 0;
2383 char label[32];
2384
2385 if (strcmp(devname, "none") == 0)
2386 return 0;
2387 if (index == MAX_PARALLEL_PORTS) {
2388 error_report("too many parallel ports");
2389 exit(1);
2390 }
2391 snprintf(label, sizeof(label), "parallel%d", index);
2392 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2393 if (!parallel_hds[index]) {
2394 error_report("could not connect parallel device"
2395 " to character backend '%s'", devname);
2396 return -1;
2397 }
2398 index++;
2399 return 0;
2400 }
2401
2402 static int debugcon_parse(const char *devname)
2403 {
2404 QemuOpts *opts;
2405
2406 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2407 error_report("invalid character backend '%s'", devname);
2408 exit(1);
2409 }
2410 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2411 if (!opts) {
2412 error_report("already have a debugcon device");
2413 exit(1);
2414 }
2415 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2416 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2417 return 0;
2418 }
2419
2420 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2421 {
2422 const MachineClass *mc1 = a, *mc2 = b;
2423 int res;
2424
2425 if (mc1->family == NULL) {
2426 if (mc2->family == NULL) {
2427 /* Compare standalone machine types against each other; they sort
2428 * in increasing order.
2429 */
2430 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2431 object_class_get_name(OBJECT_CLASS(mc2)));
2432 }
2433
2434 /* Standalone machine types sort after families. */
2435 return 1;
2436 }
2437
2438 if (mc2->family == NULL) {
2439 /* Families sort before standalone machine types. */
2440 return -1;
2441 }
2442
2443 /* Families sort between each other alphabetically increasingly. */
2444 res = strcmp(mc1->family, mc2->family);
2445 if (res != 0) {
2446 return res;
2447 }
2448
2449 /* Within the same family, machine types sort in decreasing order. */
2450 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2451 object_class_get_name(OBJECT_CLASS(mc1)));
2452 }
2453
2454 static MachineClass *machine_parse(const char *name, GSList *machines)
2455 {
2456 MachineClass *mc;
2457 GSList *el;
2458
2459 if (is_help_option(name)) {
2460 printf("Supported machines are:\n");
2461 machines = g_slist_sort(machines, machine_class_cmp);
2462 for (el = machines; el; el = el->next) {
2463 MachineClass *mc = el->data;
2464 if (mc->alias) {
2465 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2466 }
2467 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2468 mc->is_default ? " (default)" : "",
2469 mc->deprecation_reason ? " (deprecated)" : "");
2470 }
2471 exit(0);
2472 }
2473
2474 mc = find_machine(name, machines);
2475 if (!mc) {
2476 error_report("unsupported machine type");
2477 error_printf("Use -machine help to list supported machines\n");
2478 exit(1);
2479 }
2480 return mc;
2481 }
2482
2483 void qemu_add_exit_notifier(Notifier *notify)
2484 {
2485 notifier_list_add(&exit_notifiers, notify);
2486 }
2487
2488 void qemu_remove_exit_notifier(Notifier *notify)
2489 {
2490 notifier_remove(notify);
2491 }
2492
2493 static void qemu_run_exit_notifiers(void)
2494 {
2495 notifier_list_notify(&exit_notifiers, NULL);
2496 }
2497
2498 static const char *pid_file;
2499 static Notifier qemu_unlink_pidfile_notifier;
2500
2501 static void qemu_unlink_pidfile(Notifier *n, void *data)
2502 {
2503 if (pid_file) {
2504 unlink(pid_file);
2505 }
2506 }
2507
2508 bool machine_init_done;
2509
2510 void qemu_add_machine_init_done_notifier(Notifier *notify)
2511 {
2512 notifier_list_add(&machine_init_done_notifiers, notify);
2513 if (machine_init_done) {
2514 notify->notify(notify, NULL);
2515 }
2516 }
2517
2518 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2519 {
2520 notifier_remove(notify);
2521 }
2522
2523 static void qemu_run_machine_init_done_notifiers(void)
2524 {
2525 machine_init_done = true;
2526 notifier_list_notify(&machine_init_done_notifiers, NULL);
2527 }
2528
2529 static const QEMUOption *lookup_opt(int argc, char **argv,
2530 const char **poptarg, int *poptind)
2531 {
2532 const QEMUOption *popt;
2533 int optind = *poptind;
2534 char *r = argv[optind];
2535 const char *optarg;
2536
2537 loc_set_cmdline(argv, optind, 1);
2538 optind++;
2539 /* Treat --foo the same as -foo. */
2540 if (r[1] == '-')
2541 r++;
2542 popt = qemu_options;
2543 for(;;) {
2544 if (!popt->name) {
2545 error_report("invalid option");
2546 exit(1);
2547 }
2548 if (!strcmp(popt->name, r + 1))
2549 break;
2550 popt++;
2551 }
2552 if (popt->flags & HAS_ARG) {
2553 if (optind >= argc) {
2554 error_report("requires an argument");
2555 exit(1);
2556 }
2557 optarg = argv[optind++];
2558 loc_set_cmdline(argv, optind - 2, 2);
2559 } else {
2560 optarg = NULL;
2561 }
2562
2563 *poptarg = optarg;
2564 *poptind = optind;
2565
2566 return popt;
2567 }
2568
2569 static MachineClass *select_machine(void)
2570 {
2571 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2572 MachineClass *machine_class = find_default_machine(machines);
2573 const char *optarg;
2574 QemuOpts *opts;
2575 Location loc;
2576
2577 loc_push_none(&loc);
2578
2579 opts = qemu_get_machine_opts();
2580 qemu_opts_loc_restore(opts);
2581
2582 optarg = qemu_opt_get(opts, "type");
2583 if (optarg) {
2584 machine_class = machine_parse(optarg, machines);
2585 }
2586
2587 if (!machine_class) {
2588 error_report("No machine specified, and there is no default");
2589 error_printf("Use -machine help to list supported machines\n");
2590 exit(1);
2591 }
2592
2593 loc_pop(&loc);
2594 g_slist_free(machines);
2595 return machine_class;
2596 }
2597
2598 static int machine_set_property(void *opaque,
2599 const char *name, const char *value,
2600 Error **errp)
2601 {
2602 Object *obj = OBJECT(opaque);
2603 Error *local_err = NULL;
2604 char *p, *qom_name;
2605
2606 if (strcmp(name, "type") == 0) {
2607 return 0;
2608 }
2609
2610 qom_name = g_strdup(name);
2611 for (p = qom_name; *p; p++) {
2612 if (*p == '_') {
2613 *p = '-';
2614 }
2615 }
2616
2617 object_property_parse(obj, value, qom_name, &local_err);
2618 g_free(qom_name);
2619
2620 if (local_err) {
2621 error_propagate(errp, local_err);
2622 return -1;
2623 }
2624
2625 return 0;
2626 }
2627
2628
2629 /*
2630 * Initial object creation happens before all other
2631 * QEMU data types are created. The majority of objects
2632 * can be created at this point. The rng-egd object
2633 * cannot be created here, as it depends on the chardev
2634 * already existing.
2635 */
2636 static bool object_create_initial(const char *type, QemuOpts *opts)
2637 {
2638 ObjectClass *klass;
2639
2640 if (is_help_option(type)) {
2641 GSList *l, *list;
2642
2643 printf("List of user creatable objects:\n");
2644 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2645 for (l = list; l != NULL; l = l->next) {
2646 ObjectClass *oc = OBJECT_CLASS(l->data);
2647 printf(" %s\n", object_class_get_name(oc));
2648 }
2649 g_slist_free(list);
2650 exit(0);
2651 }
2652
2653 klass = object_class_by_name(type);
2654 if (klass && qemu_opt_has_help_opt(opts)) {
2655 ObjectPropertyIterator iter;
2656 ObjectProperty *prop;
2657 GPtrArray *array = g_ptr_array_new();
2658 int i;
2659
2660 object_class_property_iter_init(&iter, klass);
2661 while ((prop = object_property_iter_next(&iter))) {
2662 GString *str;
2663
2664 if (!prop->set) {
2665 continue;
2666 }
2667
2668 str = g_string_new(NULL);
2669 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2670 if (prop->description) {
2671 if (str->len < 24) {
2672 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2673 }
2674 g_string_append_printf(str, " - %s", prop->description);
2675 }
2676 g_ptr_array_add(array, g_string_free(str, false));
2677 }
2678 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2679 if (array->len > 0) {
2680 printf("%s options:\n", type);
2681 } else {
2682 printf("There are no options for %s.\n", type);
2683 }
2684 for (i = 0; i < array->len; i++) {
2685 printf("%s\n", (char *)array->pdata[i]);
2686 }
2687 g_ptr_array_set_free_func(array, g_free);
2688 g_ptr_array_free(array, true);
2689 exit(0);
2690 }
2691
2692 /*
2693 * Objects should not be made "delayed" without a reason. If you
2694 * add one, state the reason in a comment!
2695 */
2696
2697 /* Reason: rng-egd property "chardev" */
2698 if (g_str_equal(type, "rng-egd")) {
2699 return false;
2700 }
2701
2702 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2703 /* Reason: cryptodev-vhost-user property "chardev" */
2704 if (g_str_equal(type, "cryptodev-vhost-user")) {
2705 return false;
2706 }
2707 #endif
2708
2709 /*
2710 * Reason: filter-* property "netdev" etc.
2711 */
2712 if (g_str_equal(type, "filter-buffer") ||
2713 g_str_equal(type, "filter-dump") ||
2714 g_str_equal(type, "filter-mirror") ||
2715 g_str_equal(type, "filter-redirector") ||
2716 g_str_equal(type, "colo-compare") ||
2717 g_str_equal(type, "filter-rewriter") ||
2718 g_str_equal(type, "filter-replay")) {
2719 return false;
2720 }
2721
2722 /* Memory allocation by backends needs to be done
2723 * after configure_accelerator() (due to the tcg_enabled()
2724 * checks at memory_region_init_*()).
2725 *
2726 * Also, allocation of large amounts of memory may delay
2727 * chardev initialization for too long, and trigger timeouts
2728 * on software that waits for a monitor socket to be created
2729 * (e.g. libvirt).
2730 */
2731 if (g_str_has_prefix(type, "memory-backend-")) {
2732 return false;
2733 }
2734
2735 return true;
2736 }
2737
2738
2739 /*
2740 * The remainder of object creation happens after the
2741 * creation of chardev, fsdev, net clients and device data types.
2742 */
2743 static bool object_create_delayed(const char *type, QemuOpts *opts)
2744 {
2745 return !object_create_initial(type, opts);
2746 }
2747
2748
2749 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2750 MachineClass *mc)
2751 {
2752 uint64_t sz;
2753 const char *mem_str;
2754 const ram_addr_t default_ram_size = mc->default_ram_size;
2755 QemuOpts *opts = qemu_find_opts_singleton("memory");
2756 Location loc;
2757
2758 loc_push_none(&loc);
2759 qemu_opts_loc_restore(opts);
2760
2761 sz = 0;
2762 mem_str = qemu_opt_get(opts, "size");
2763 if (mem_str) {
2764 if (!*mem_str) {
2765 error_report("missing 'size' option value");
2766 exit(EXIT_FAILURE);
2767 }
2768
2769 sz = qemu_opt_get_size(opts, "size", ram_size);
2770
2771 /* Fix up legacy suffix-less format */
2772 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2773 uint64_t overflow_check = sz;
2774
2775 sz *= MiB;
2776 if (sz / MiB != overflow_check) {
2777 error_report("too large 'size' option value");
2778 exit(EXIT_FAILURE);
2779 }
2780 }
2781 }
2782
2783 /* backward compatibility behaviour for case "-m 0" */
2784 if (sz == 0) {
2785 sz = default_ram_size;
2786 }
2787
2788 sz = QEMU_ALIGN_UP(sz, 8192);
2789 ram_size = sz;
2790 if (ram_size != sz) {
2791 error_report("ram size too large");
2792 exit(EXIT_FAILURE);
2793 }
2794
2795 /* store value for the future use */
2796 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2797 *maxram_size = ram_size;
2798
2799 if (qemu_opt_get(opts, "maxmem")) {
2800 uint64_t slots;
2801
2802 sz = qemu_opt_get_size(opts, "maxmem", 0);
2803 slots = qemu_opt_get_number(opts, "slots", 0);
2804 if (sz < ram_size) {
2805 error_report("invalid value of -m option maxmem: "
2806 "maximum memory size (0x%" PRIx64 ") must be at least "
2807 "the initial memory size (0x" RAM_ADDR_FMT ")",
2808 sz, ram_size);
2809 exit(EXIT_FAILURE);
2810 } else if (slots && sz == ram_size) {
2811 error_report("invalid value of -m option maxmem: "
2812 "memory slots were specified but maximum memory size "
2813 "(0x%" PRIx64 ") is equal to the initial memory size "
2814 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2815 exit(EXIT_FAILURE);
2816 }
2817
2818 *maxram_size = sz;
2819 *ram_slots = slots;
2820 } else if (qemu_opt_get(opts, "slots")) {
2821 error_report("invalid -m option value: missing 'maxmem' option");
2822 exit(EXIT_FAILURE);
2823 }
2824
2825 loc_pop(&loc);
2826 }
2827
2828 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2829 {
2830 GlobalProperty *g;
2831
2832 g = g_malloc0(sizeof(*g));
2833 g->driver = qemu_opt_get(opts, "driver");
2834 g->property = qemu_opt_get(opts, "property");
2835 g->value = qemu_opt_get(opts, "value");
2836 qdev_prop_register_global(g);
2837 return 0;
2838 }
2839
2840 static int qemu_read_default_config_file(void)
2841 {
2842 int ret;
2843
2844 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2845 if (ret < 0 && ret != -ENOENT) {
2846 return ret;
2847 }
2848
2849 return 0;
2850 }
2851
2852 static void user_register_global_props(void)
2853 {
2854 qemu_opts_foreach(qemu_find_opts("global"),
2855 global_init_func, NULL, NULL);
2856 }
2857
2858 int main(int argc, char **argv, char **envp)
2859 {
2860 int i;
2861 int snapshot, linux_boot;
2862 const char *initrd_filename;
2863 const char *kernel_filename, *kernel_cmdline;
2864 const char *boot_order = NULL;
2865 const char *boot_once = NULL;
2866 DisplayState *ds;
2867 QemuOpts *opts, *machine_opts;
2868 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2869 QemuOptsList *olist;
2870 int optind;
2871 const char *optarg;
2872 const char *loadvm = NULL;
2873 MachineClass *machine_class;
2874 const char *cpu_option;
2875 const char *vga_model = NULL;
2876 const char *qtest_chrdev = NULL;
2877 const char *qtest_log = NULL;
2878 const char *incoming = NULL;
2879 bool userconfig = true;
2880 bool nographic = false;
2881 int display_remote = 0;
2882 const char *log_mask = NULL;
2883 const char *log_file = NULL;
2884 char *trace_file = NULL;
2885 ram_addr_t maxram_size;
2886 uint64_t ram_slots = 0;
2887 FILE *vmstate_dump_file = NULL;
2888 Error *main_loop_err = NULL;
2889 Error *err = NULL;
2890 bool list_data_dirs = false;
2891 char *dir, **dirs;
2892 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2893
2894 os_set_line_buffering();
2895
2896 error_init(argv[0]);
2897 module_call_init(MODULE_INIT_TRACE);
2898
2899 qemu_init_cpu_list();
2900 qemu_init_cpu_loop();
2901
2902 qemu_mutex_lock_iothread();
2903
2904 atexit(qemu_run_exit_notifiers);
2905 qemu_init_exec_dir(argv[0]);
2906
2907 module_call_init(MODULE_INIT_QOM);
2908
2909 qemu_add_opts(&qemu_drive_opts);
2910 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2911 qemu_add_drive_opts(&qemu_common_drive_opts);
2912 qemu_add_drive_opts(&qemu_drive_opts);
2913 qemu_add_drive_opts(&bdrv_runtime_opts);
2914 qemu_add_opts(&qemu_chardev_opts);
2915 qemu_add_opts(&qemu_device_opts);
2916 qemu_add_opts(&qemu_netdev_opts);
2917 qemu_add_opts(&qemu_nic_opts);
2918 qemu_add_opts(&qemu_net_opts);
2919 qemu_add_opts(&qemu_rtc_opts);
2920 qemu_add_opts(&qemu_global_opts);
2921 qemu_add_opts(&qemu_mon_opts);
2922 qemu_add_opts(&qemu_trace_opts);
2923 qemu_add_opts(&qemu_option_rom_opts);
2924 qemu_add_opts(&qemu_machine_opts);
2925 qemu_add_opts(&qemu_accel_opts);
2926 qemu_add_opts(&qemu_mem_opts);
2927 qemu_add_opts(&qemu_smp_opts);
2928 qemu_add_opts(&qemu_boot_opts);
2929 qemu_add_opts(&qemu_add_fd_opts);
2930 qemu_add_opts(&qemu_object_opts);
2931 qemu_add_opts(&qemu_tpmdev_opts);
2932 qemu_add_opts(&qemu_realtime_opts);
2933 qemu_add_opts(&qemu_overcommit_opts);
2934 qemu_add_opts(&qemu_msg_opts);
2935 qemu_add_opts(&qemu_name_opts);
2936 qemu_add_opts(&qemu_numa_opts);
2937 qemu_add_opts(&qemu_icount_opts);
2938 qemu_add_opts(&qemu_semihosting_config_opts);
2939 qemu_add_opts(&qemu_fw_cfg_opts);
2940 module_call_init(MODULE_INIT_OPTS);
2941
2942 runstate_init();
2943 precopy_infrastructure_init();
2944 postcopy_infrastructure_init();
2945 monitor_init_globals();
2946
2947 if (qcrypto_init(&err) < 0) {
2948 error_reportf_err(err, "cannot initialize crypto: ");
2949 exit(1);
2950 }
2951
2952 QTAILQ_INIT(&vm_change_state_head);
2953 os_setup_early_signal_handling();
2954
2955 cpu_option = NULL;
2956 snapshot = 0;
2957
2958 nb_nics = 0;
2959
2960 bdrv_init_with_whitelist();
2961
2962 autostart = 1;
2963
2964 /* first pass of option parsing */
2965 optind = 1;
2966 while (optind < argc) {
2967 if (argv[optind][0] != '-') {
2968 /* disk image */
2969 optind++;
2970 } else {
2971 const QEMUOption *popt;
2972
2973 popt = lookup_opt(argc, argv, &optarg, &optind);
2974 switch (popt->index) {
2975 case QEMU_OPTION_nouserconfig:
2976 userconfig = false;
2977 break;
2978 }
2979 }
2980 }
2981
2982 if (userconfig) {
2983 if (qemu_read_default_config_file() < 0) {
2984 exit(1);
2985 }
2986 }
2987
2988 /* second pass of option parsing */
2989 optind = 1;
2990 for(;;) {
2991 if (optind >= argc)
2992 break;
2993 if (argv[optind][0] != '-') {
2994 loc_set_cmdline(argv, optind, 1);
2995 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2996 } else {
2997 const QEMUOption *popt;
2998
2999 popt = lookup_opt(argc, argv, &optarg, &optind);
3000 if (!(popt->arch_mask & arch_type)) {
3001 error_report("Option not supported for this target");
3002 exit(1);
3003 }
3004 switch(popt->index) {
3005 case QEMU_OPTION_cpu:
3006 /* hw initialization will check this */
3007 cpu_option = optarg;
3008 break;
3009 case QEMU_OPTION_hda:
3010 case QEMU_OPTION_hdb:
3011 case QEMU_OPTION_hdc:
3012 case QEMU_OPTION_hdd:
3013 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3014 HD_OPTS);
3015 break;
3016 case QEMU_OPTION_blockdev:
3017 {
3018 Visitor *v;
3019 BlockdevOptionsQueueEntry *bdo;
3020
3021 v = qobject_input_visitor_new_str(optarg, "driver",
3022 &error_fatal);
3023
3024 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3025 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3026 &error_fatal);
3027 visit_free(v);
3028 loc_save(&bdo->loc);
3029 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3030 break;
3031 }
3032 case QEMU_OPTION_drive:
3033 if (drive_def(optarg) == NULL) {
3034 exit(1);
3035 }
3036 break;
3037 case QEMU_OPTION_set:
3038 if (qemu_set_option(optarg) != 0)
3039 exit(1);
3040 break;
3041 case QEMU_OPTION_global:
3042 if (qemu_global_option(optarg) != 0)
3043 exit(1);
3044 break;
3045 case QEMU_OPTION_mtdblock:
3046 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3047 break;
3048 case QEMU_OPTION_sd:
3049 drive_add(IF_SD, -1, optarg, SD_OPTS);
3050 break;
3051 case QEMU_OPTION_pflash:
3052 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3053 break;
3054 case QEMU_OPTION_snapshot:
3055 snapshot = 1;
3056 break;
3057 case QEMU_OPTION_numa:
3058 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3059 optarg, true);
3060 if (!opts) {
3061 exit(1);
3062 }
3063 break;
3064 case QEMU_OPTION_display:
3065 parse_display(optarg);
3066 break;
3067 case QEMU_OPTION_nographic:
3068 olist = qemu_find_opts("machine");
3069 qemu_opts_parse_noisily(olist, "graphics=off", false);
3070 nographic = true;
3071 dpy.type = DISPLAY_TYPE_NONE;
3072 break;
3073 case QEMU_OPTION_curses:
3074 #ifdef CONFIG_CURSES
3075 dpy.type = DISPLAY_TYPE_CURSES;
3076 #else
3077 error_report("curses or iconv support is disabled");
3078 exit(1);
3079 #endif
3080 break;
3081 case QEMU_OPTION_portrait:
3082 graphic_rotate = 90;
3083 break;
3084 case QEMU_OPTION_rotate:
3085 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3086 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3087 graphic_rotate != 180 && graphic_rotate != 270) {
3088 error_report("only 90, 180, 270 deg rotation is available");
3089 exit(1);
3090 }
3091 break;
3092 case QEMU_OPTION_kernel:
3093 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3094 &error_abort);
3095 break;
3096 case QEMU_OPTION_initrd:
3097 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3098 &error_abort);
3099 break;
3100 case QEMU_OPTION_append:
3101 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3102 &error_abort);
3103 break;
3104 case QEMU_OPTION_dtb:
3105 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3106 &error_abort);
3107 break;
3108 case QEMU_OPTION_cdrom:
3109 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3110 break;
3111 case QEMU_OPTION_boot:
3112 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3113 optarg, true);
3114 if (!opts) {
3115 exit(1);
3116 }
3117 break;
3118 case QEMU_OPTION_fda:
3119 case QEMU_OPTION_fdb:
3120 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3121 optarg, FD_OPTS);
3122 break;
3123 case QEMU_OPTION_no_fd_bootchk:
3124 fd_bootchk = 0;
3125 break;
3126 case QEMU_OPTION_netdev:
3127 default_net = 0;
3128 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3129 exit(1);
3130 }
3131 break;
3132 case QEMU_OPTION_nic:
3133 default_net = 0;
3134 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3135 exit(1);
3136 }
3137 break;
3138 case QEMU_OPTION_net:
3139 default_net = 0;
3140 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3141 exit(1);
3142 }
3143 break;
3144 #ifdef CONFIG_LIBISCSI
3145 case QEMU_OPTION_iscsi:
3146 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3147 optarg, false);
3148 if (!opts) {
3149 exit(1);
3150 }
3151 break;
3152 #endif
3153 case QEMU_OPTION_bt:
3154 warn_report("The bluetooth subsystem is deprecated and will "
3155 "be removed soon. If the bluetooth subsystem is "
3156 "still useful for you, please send a mail to "
3157 "qemu-devel@nongnu.org with your usecase.");
3158 add_device_config(DEV_BT, optarg);
3159 break;
3160 case QEMU_OPTION_audio_help:
3161 audio_legacy_help();
3162 exit (0);
3163 break;
3164 case QEMU_OPTION_audiodev:
3165 audio_parse_option(optarg);
3166 break;
3167 case QEMU_OPTION_soundhw:
3168 select_soundhw (optarg);
3169 break;
3170 case QEMU_OPTION_h:
3171 help(0);
3172 break;
3173 case QEMU_OPTION_version:
3174 version();
3175 exit(0);
3176 break;
3177 case QEMU_OPTION_m:
3178 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3179 optarg, true);
3180 if (!opts) {
3181 exit(EXIT_FAILURE);
3182 }
3183 break;
3184 #ifdef CONFIG_TPM
3185 case QEMU_OPTION_tpmdev:
3186 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3187 exit(1);
3188 }
3189 break;
3190 #endif
3191 case QEMU_OPTION_mempath:
3192 mem_path = optarg;
3193 break;
3194 case QEMU_OPTION_mem_prealloc:
3195 mem_prealloc = 1;
3196 break;
3197 case QEMU_OPTION_d:
3198 log_mask = optarg;
3199 break;
3200 case QEMU_OPTION_D:
3201 log_file = optarg;
3202 break;
3203 case QEMU_OPTION_DFILTER:
3204 qemu_set_dfilter_ranges(optarg, &error_fatal);
3205 break;
3206 case QEMU_OPTION_seed:
3207 qemu_guest_random_seed_main(optarg, &error_fatal);
3208 break;
3209 case QEMU_OPTION_s:
3210 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3211 break;
3212 case QEMU_OPTION_gdb:
3213 add_device_config(DEV_GDB, optarg);
3214 break;
3215 case QEMU_OPTION_L:
3216 if (is_help_option(optarg)) {
3217 list_data_dirs = true;
3218 } else {
3219 qemu_add_data_dir(optarg);
3220 }
3221 break;
3222 case QEMU_OPTION_bios:
3223 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3224 &error_abort);
3225 break;
3226 case QEMU_OPTION_singlestep:
3227 singlestep = 1;
3228 break;
3229 case QEMU_OPTION_S:
3230 autostart = 0;
3231 break;
3232 case QEMU_OPTION_k:
3233 keyboard_layout = optarg;
3234 break;
3235 case QEMU_OPTION_vga:
3236 vga_model = optarg;
3237 default_vga = 0;
3238 break;
3239 case QEMU_OPTION_g:
3240 {
3241 const char *p;
3242 int w, h, depth;
3243 p = optarg;
3244 w = strtol(p, (char **)&p, 10);
3245 if (w <= 0) {
3246 graphic_error:
3247 error_report("invalid resolution or depth");
3248 exit(1);
3249 }
3250 if (*p != 'x')
3251 goto graphic_error;
3252 p++;
3253 h = strtol(p, (char **)&p, 10);
3254 if (h <= 0)
3255 goto graphic_error;
3256 if (*p == 'x') {
3257 p++;
3258 depth = strtol(p, (char **)&p, 10);
3259 if (depth != 8 && depth != 15 && depth != 16 &&
3260 depth != 24 && depth != 32)
3261 goto graphic_error;
3262 } else if (*p == '\0') {
3263 depth = graphic_depth;
3264 } else {
3265 goto graphic_error;
3266 }
3267
3268 graphic_width = w;
3269 graphic_height = h;
3270 graphic_depth = depth;
3271 }
3272 break;
3273 case QEMU_OPTION_echr:
3274 {
3275 char *r;
3276 term_escape_char = strtol(optarg, &r, 0);
3277 if (r == optarg)
3278 printf("Bad argument to echr\n");
3279 break;
3280 }
3281 case QEMU_OPTION_monitor:
3282 default_monitor = 0;
3283 if (strncmp(optarg, "none", 4)) {
3284 monitor_parse(optarg, "readline", false);
3285 }
3286 break;
3287 case QEMU_OPTION_qmp:
3288 monitor_parse(optarg, "control", false);
3289 default_monitor = 0;
3290 break;
3291 case QEMU_OPTION_qmp_pretty:
3292 monitor_parse(optarg, "control", true);
3293 default_monitor = 0;
3294 break;
3295 case QEMU_OPTION_mon:
3296 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3297 true);
3298 if (!opts) {
3299 exit(1);
3300 }
3301 default_monitor = 0;
3302 break;
3303 case QEMU_OPTION_chardev:
3304 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3305 optarg, true);
3306 if (!opts) {
3307 exit(1);
3308 }
3309 break;
3310 case QEMU_OPTION_fsdev:
3311 olist = qemu_find_opts("fsdev");
3312 if (!olist) {
3313 error_report("fsdev support is disabled");
3314 exit(1);
3315 }
3316 opts = qemu_opts_parse_noisily(olist, optarg, true);
3317 if (!opts) {
3318 exit(1);
3319 }
3320 break;
3321 case QEMU_OPTION_virtfs: {
3322 QemuOpts *fsdev;
3323 QemuOpts *device;
3324 const char *writeout, *sock_fd, *socket, *path, *security_model;
3325
3326 olist = qemu_find_opts("virtfs");
3327 if (!olist) {
3328 error_report("virtfs support is disabled");
3329 exit(1);
3330 }
3331 opts = qemu_opts_parse_noisily(olist, optarg, true);
3332 if (!opts) {
3333 exit(1);
3334 }
3335
3336 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3337 qemu_opt_get(opts, "mount_tag") == NULL) {
3338 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3339 exit(1);
3340 }
3341 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3342 qemu_opts_id(opts) ?:
3343 qemu_opt_get(opts, "mount_tag"),
3344 1, NULL);
3345 if (!fsdev) {
3346 error_report("duplicate or invalid fsdev id: %s",
3347 qemu_opt_get(opts, "mount_tag"));
3348 exit(1);
3349 }
3350
3351 writeout = qemu_opt_get(opts, "writeout");
3352 if (writeout) {
3353 #ifdef CONFIG_SYNC_FILE_RANGE
3354 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3355 #else
3356 error_report("writeout=immediate not supported "
3357 "on this platform");
3358 exit(1);
3359 #endif
3360 }
3361 qemu_opt_set(fsdev, "fsdriver",
3362 qemu_opt_get(opts, "fsdriver"), &error_abort);
3363 path = qemu_opt_get(opts, "path");
3364 if (path) {
3365 qemu_opt_set(fsdev, "path", path, &error_abort);
3366 }
3367 security_model = qemu_opt_get(opts, "security_model");
3368 if (security_model) {
3369 qemu_opt_set(fsdev, "security_model", security_model,
3370 &error_abort);
3371 }
3372 socket = qemu_opt_get(opts, "socket");
3373 if (socket) {
3374 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3375 }
3376 sock_fd = qemu_opt_get(opts, "sock_fd");
3377 if (sock_fd) {
3378 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3379 }
3380
3381 qemu_opt_set_bool(fsdev, "readonly",
3382 qemu_opt_get_bool(opts, "readonly", 0),
3383 &error_abort);
3384 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3385 &error_abort);
3386 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3387 qemu_opt_set(device, "fsdev",
3388 qemu_opts_id(fsdev), &error_abort);
3389 qemu_opt_set(device, "mount_tag",
3390 qemu_opt_get(opts, "mount_tag"), &error_abort);
3391 break;
3392 }
3393 case QEMU_OPTION_virtfs_synth: {
3394 QemuOpts *fsdev;
3395 QemuOpts *device;
3396
3397 warn_report("'-virtfs_synth' is deprecated, please use "
3398 "'-fsdev synth' and '-device virtio-9p-...' "
3399 "instead");
3400
3401 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3402 1, NULL);
3403 if (!fsdev) {
3404 error_report("duplicate option: %s", "virtfs_synth");
3405 exit(1);
3406 }
3407 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3408
3409 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3410 &error_abort);
3411 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3412 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3413 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3414 break;
3415 }
3416 case QEMU_OPTION_serial:
3417 add_device_config(DEV_SERIAL, optarg);
3418 default_serial = 0;
3419 if (strncmp(optarg, "mon:", 4) == 0) {
3420 default_monitor = 0;
3421 }
3422 break;
3423 case QEMU_OPTION_watchdog:
3424 if (watchdog) {
3425 error_report("only one watchdog option may be given");
3426 return 1;
3427 }
3428 watchdog = optarg;
3429 break;
3430 case QEMU_OPTION_watchdog_action:
3431 if (select_watchdog_action(optarg) == -1) {
3432 error_report("unknown -watchdog-action parameter");
3433 exit(1);
3434 }
3435 break;
3436 case QEMU_OPTION_parallel:
3437 add_device_config(DEV_PARALLEL, optarg);
3438 default_parallel = 0;
3439 if (strncmp(optarg, "mon:", 4) == 0) {
3440 default_monitor = 0;
3441 }
3442 break;
3443 case QEMU_OPTION_debugcon:
3444 add_device_config(DEV_DEBUGCON, optarg);
3445 break;
3446 case QEMU_OPTION_loadvm:
3447 loadvm = optarg;
3448 break;
3449 case QEMU_OPTION_full_screen:
3450 dpy.has_full_screen = true;
3451 dpy.full_screen = true;
3452 break;
3453 case QEMU_OPTION_alt_grab:
3454 alt_grab = 1;
3455 break;
3456 case QEMU_OPTION_ctrl_grab:
3457 ctrl_grab = 1;
3458 break;
3459 case QEMU_OPTION_no_quit:
3460 dpy.has_window_close = true;
3461 dpy.window_close = false;
3462 break;
3463 case QEMU_OPTION_sdl:
3464 #ifdef CONFIG_SDL
3465 dpy.type = DISPLAY_TYPE_SDL;
3466 break;
3467 #else
3468 error_report("SDL support is disabled");
3469 exit(1);
3470 #endif
3471 case QEMU_OPTION_pidfile:
3472 pid_file = optarg;
3473 break;
3474 case QEMU_OPTION_win2k_hack:
3475 win2k_install_hack = 1;
3476 break;
3477 case QEMU_OPTION_acpitable:
3478 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3479 optarg, true);
3480 if (!opts) {
3481 exit(1);
3482 }
3483 acpi_table_add(opts, &error_fatal);
3484 break;
3485 case QEMU_OPTION_smbios:
3486 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3487 optarg, false);
3488 if (!opts) {
3489 exit(1);
3490 }
3491 smbios_entry_add(opts, &error_fatal);
3492 break;
3493 case QEMU_OPTION_fwcfg:
3494 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3495 optarg, true);
3496 if (opts == NULL) {
3497 exit(1);
3498 }
3499 break;
3500 case QEMU_OPTION_preconfig:
3501 preconfig_exit_requested = false;
3502 break;
3503 case QEMU_OPTION_enable_kvm:
3504 olist = qemu_find_opts("machine");
3505 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3506 break;
3507 case QEMU_OPTION_M:
3508 case QEMU_OPTION_machine:
3509 olist = qemu_find_opts("machine");
3510 opts = qemu_opts_parse_noisily(olist, optarg, true);
3511 if (!opts) {
3512 exit(1);
3513 }
3514 break;
3515 case QEMU_OPTION_no_kvm:
3516 olist = qemu_find_opts("machine");
3517 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3518 break;
3519 case QEMU_OPTION_accel:
3520 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3521 optarg, true);
3522 optarg = qemu_opt_get(accel_opts, "accel");
3523 if (!optarg || is_help_option(optarg)) {
3524 printf("Accelerators supported in QEMU binary:\n");
3525 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3526 false);
3527 for (el = accel_list; el; el = el->next) {
3528 gchar *typename = g_strdup(object_class_get_name(
3529 OBJECT_CLASS(el->data)));
3530 /* omit qtest which is used for tests only */
3531 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3532 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3533 gchar **optname = g_strsplit(typename,
3534 ACCEL_CLASS_SUFFIX, 0);
3535 printf("%s\n", optname[0]);
3536 g_free(optname);
3537 }
3538 g_free(typename);
3539 }
3540 g_slist_free(accel_list);
3541 exit(0);
3542 }
3543 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3544 false, &error_abort);
3545 qemu_opt_set(opts, "accel", optarg, &error_abort);
3546 break;
3547 case QEMU_OPTION_usb:
3548 olist = qemu_find_opts("machine");
3549 qemu_opts_parse_noisily(olist, "usb=on", false);
3550 break;
3551 case QEMU_OPTION_usbdevice:
3552 error_report("'-usbdevice' is deprecated, please use "
3553 "'-device usb-...' instead");
3554 olist = qemu_find_opts("machine");
3555 qemu_opts_parse_noisily(olist, "usb=on", false);
3556 add_device_config(DEV_USB, optarg);
3557 break;
3558 case QEMU_OPTION_device:
3559 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3560 optarg, true)) {
3561 exit(1);
3562 }
3563 break;
3564 case QEMU_OPTION_smp:
3565 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3566 optarg, true)) {
3567 exit(1);
3568 }
3569 break;
3570 case QEMU_OPTION_vnc:
3571 vnc_parse(optarg, &error_fatal);
3572 break;
3573 case QEMU_OPTION_no_acpi:
3574 acpi_enabled = 0;
3575 break;
3576 case QEMU_OPTION_no_hpet:
3577 no_hpet = 1;
3578 break;
3579 case QEMU_OPTION_no_reboot:
3580 no_reboot = 1;
3581 break;
3582 case QEMU_OPTION_no_shutdown:
3583 no_shutdown = 1;
3584 break;
3585 case QEMU_OPTION_show_cursor:
3586 cursor_hide = 0;
3587 break;
3588 case QEMU_OPTION_uuid:
3589 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3590 error_report("failed to parse UUID string: wrong format");
3591 exit(1);
3592 }
3593 qemu_uuid_set = true;
3594 break;
3595 case QEMU_OPTION_option_rom:
3596 if (nb_option_roms >= MAX_OPTION_ROMS) {
3597 error_report("too many option ROMs");
3598 exit(1);
3599 }
3600 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3601 optarg, true);
3602 if (!opts) {
3603 exit(1);
3604 }
3605 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3606 option_rom[nb_option_roms].bootindex =
3607 qemu_opt_get_number(opts, "bootindex", -1);
3608 if (!option_rom[nb_option_roms].name) {
3609 error_report("Option ROM file is not specified");
3610 exit(1);
3611 }
3612 nb_option_roms++;
3613 break;
3614 case QEMU_OPTION_semihosting:
3615 qemu_semihosting_enable();
3616 break;
3617 case QEMU_OPTION_semihosting_config:
3618 if (qemu_semihosting_config_options(optarg) != 0) {
3619 exit(1);
3620 }
3621 break;
3622 case QEMU_OPTION_name:
3623 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3624 optarg, true);
3625 if (!opts) {
3626 exit(1);
3627 }
3628 break;
3629 case QEMU_OPTION_prom_env:
3630 if (nb_prom_envs >= MAX_PROM_ENVS) {
3631 error_report("too many prom variables");
3632 exit(1);
3633 }
3634 prom_envs[nb_prom_envs] = optarg;
3635 nb_prom_envs++;
3636 break;
3637 case QEMU_OPTION_old_param:
3638 old_param = 1;
3639 break;
3640 case QEMU_OPTION_rtc:
3641 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3642 false);
3643 if (!opts) {
3644 exit(1);
3645 }
3646 break;
3647 case QEMU_OPTION_tb_size:
3648 #ifndef CONFIG_TCG
3649 error_report("TCG is disabled");
3650 exit(1);
3651 #endif
3652 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3653 error_report("Invalid argument to -tb-size");
3654 exit(1);
3655 }
3656 break;
3657 case QEMU_OPTION_icount:
3658 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3659 optarg, true);
3660 if (!icount_opts) {
3661 exit(1);
3662 }
3663 break;
3664 case QEMU_OPTION_incoming:
3665 if (!incoming) {
3666 runstate_set(RUN_STATE_INMIGRATE);
3667 }
3668 incoming = optarg;
3669 break;
3670 case QEMU_OPTION_only_migratable:
3671 only_migratable = 1;
3672 break;
3673 case QEMU_OPTION_nodefaults:
3674 has_defaults = 0;
3675 break;
3676 case QEMU_OPTION_xen_domid:
3677 if (!(xen_available())) {
3678 error_report("Option not supported for this target");
3679 exit(1);
3680 }
3681 xen_domid = atoi(optarg);
3682 break;
3683 case QEMU_OPTION_xen_attach:
3684 if (!(xen_available())) {
3685 error_report("Option not supported for this target");
3686 exit(1);
3687 }
3688 xen_mode = XEN_ATTACH;
3689 break;
3690 case QEMU_OPTION_xen_domid_restrict:
3691 if (!(xen_available())) {
3692 error_report("Option not supported for this target");
3693 exit(1);
3694 }
3695 xen_domid_restrict = true;
3696 break;
3697 case QEMU_OPTION_trace:
3698 g_free(trace_file);
3699 trace_file = trace_opt_parse(optarg);
3700 break;
3701 case QEMU_OPTION_readconfig:
3702 {
3703 int ret = qemu_read_config_file(optarg);
3704 if (ret < 0) {
3705 error_report("read config %s: %s", optarg,
3706 strerror(-ret));
3707 exit(1);
3708 }
3709 break;
3710 }
3711 case QEMU_OPTION_spice:
3712 olist = qemu_find_opts("spice");
3713 if (!olist) {
3714 error_report("spice support is disabled");
3715 exit(1);
3716 }
3717 opts = qemu_opts_parse_noisily(olist, optarg, false);
3718 if (!opts) {
3719 exit(1);
3720 }
3721 display_remote++;
3722 break;
3723 case QEMU_OPTION_writeconfig:
3724 {
3725 FILE *fp;
3726 if (strcmp(optarg, "-") == 0) {
3727 fp = stdout;
3728 } else {
3729 fp = fopen(optarg, "w");
3730 if (fp == NULL) {
3731 error_report("open %s: %s", optarg,
3732 strerror(errno));
3733 exit(1);
3734 }
3735 }
3736 qemu_config_write(fp);
3737 if (fp != stdout) {
3738 fclose(fp);
3739 }
3740 break;
3741 }
3742 case QEMU_OPTION_qtest:
3743 qtest_chrdev = optarg;
3744 break;
3745 case QEMU_OPTION_qtest_log:
3746 qtest_log = optarg;
3747 break;
3748 case QEMU_OPTION_sandbox:
3749 olist = qemu_find_opts("sandbox");
3750 if (!olist) {
3751 #ifndef CONFIG_SECCOMP
3752 error_report("-sandbox support is not enabled "
3753 "in this QEMU binary");
3754 #endif
3755 exit(1);
3756 }
3757
3758 opts = qemu_opts_parse_noisily(olist, optarg, true);
3759 if (!opts) {
3760 exit(1);
3761 }
3762 break;
3763 case QEMU_OPTION_add_fd:
3764 #ifndef _WIN32
3765 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3766 optarg, false);
3767 if (!opts) {
3768 exit(1);
3769 }
3770 #else
3771 error_report("File descriptor passing is disabled on this "
3772 "platform");
3773 exit(1);
3774 #endif
3775 break;
3776 case QEMU_OPTION_object:
3777 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3778 optarg, true);
3779 if (!opts) {
3780 exit(1);
3781 }
3782 break;
3783 case QEMU_OPTION_realtime:
3784 warn_report("'-realtime mlock=...' is deprecated, please use "
3785 "'-overcommit mem-lock=...' instead");
3786 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3787 optarg, false);
3788 if (!opts) {
3789 exit(1);
3790 }
3791 /* Don't override the -overcommit option if set */
3792 enable_mlock = enable_mlock ||
3793 qemu_opt_get_bool(opts, "mlock", true);
3794 break;
3795 case QEMU_OPTION_overcommit:
3796 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3797 optarg, false);
3798 if (!opts) {
3799 exit(1);
3800 }
3801 /* Don't override the -realtime option if set */
3802 enable_mlock = enable_mlock ||
3803 qemu_opt_get_bool(opts, "mem-lock", false);
3804 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3805 break;
3806 case QEMU_OPTION_msg:
3807 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3808 false);
3809 if (!opts) {
3810 exit(1);
3811 }
3812 configure_msg(opts);
3813 break;
3814 case QEMU_OPTION_dump_vmstate:
3815 if (vmstate_dump_file) {
3816 error_report("only one '-dump-vmstate' "
3817 "option may be given");
3818 exit(1);
3819 }
3820 vmstate_dump_file = fopen(optarg, "w");
3821 if (vmstate_dump_file == NULL) {
3822 error_report("open %s: %s", optarg, strerror(errno));
3823 exit(1);
3824 }
3825 break;
3826 case QEMU_OPTION_enable_sync_profile:
3827 qsp_enable();
3828 break;
3829 case QEMU_OPTION_nouserconfig:
3830 /* Nothing to be parsed here. Especially, do not error out below. */
3831 break;
3832 default:
3833 if (os_parse_cmd_args(popt->index, optarg)) {
3834 error_report("Option not supported in this build");
3835 exit(1);
3836 }
3837 }
3838 }
3839 }
3840 /*
3841 * Clear error location left behind by the loop.
3842 * Best done right after the loop. Do not insert code here!
3843 */
3844 loc_set_none();
3845
3846 user_register_global_props();
3847
3848 replay_configure(icount_opts);
3849
3850 if (incoming && !preconfig_exit_requested) {
3851 error_report("'preconfig' and 'incoming' options are "
3852 "mutually exclusive");
3853 exit(EXIT_FAILURE);
3854 }
3855
3856 configure_rtc(qemu_find_opts_singleton("rtc"));
3857
3858 machine_class = select_machine();
3859 object_set_machine_compat_props(machine_class->compat_props);
3860
3861 set_memory_options(&ram_slots, &maxram_size, machine_class);
3862
3863 os_daemonize();
3864 rcu_disable_atfork();
3865
3866 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3867 error_reportf_err(err, "cannot create PID file: ");
3868 exit(1);
3869 }
3870
3871 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3872 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3873
3874 if (qemu_init_main_loop(&main_loop_err)) {
3875 error_report_err(main_loop_err);
3876 exit(1);
3877 }
3878
3879 #ifdef CONFIG_SECCOMP
3880 olist = qemu_find_opts_err("sandbox", NULL);
3881 if (olist) {
3882 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3883 }
3884 #endif
3885
3886 qemu_opts_foreach(qemu_find_opts("name"),
3887 parse_name, NULL, &error_fatal);
3888
3889 #ifndef _WIN32
3890 qemu_opts_foreach(qemu_find_opts("add-fd"),
3891 parse_add_fd, NULL, &error_fatal);
3892
3893 qemu_opts_foreach(qemu_find_opts("add-fd"),
3894 cleanup_add_fd, NULL, &error_fatal);
3895 #endif
3896
3897 current_machine = MACHINE(object_new(object_class_get_name(
3898 OBJECT_CLASS(machine_class))));
3899 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3900 exit(0);
3901 }
3902 object_property_add_child(object_get_root(), "machine",
3903 OBJECT(current_machine), &error_abort);
3904 object_property_add_child(container_get(OBJECT(current_machine),
3905 "/unattached"),
3906 "sysbus", OBJECT(sysbus_get_default()),
3907 NULL);
3908
3909 if (machine_class->minimum_page_bits) {
3910 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3911 /* This would be a board error: specifying a minimum smaller than
3912 * a target's compile-time fixed setting.
3913 */
3914 g_assert_not_reached();
3915 }
3916 }
3917
3918 cpu_exec_init_all();
3919
3920 if (machine_class->hw_version) {
3921 qemu_set_hw_version(machine_class->hw_version);
3922 }
3923
3924 if (cpu_option && is_help_option(cpu_option)) {
3925 list_cpus(cpu_option);
3926 exit(0);
3927 }
3928
3929 if (!trace_init_backends()) {
3930 exit(1);
3931 }
3932 trace_init_file(trace_file);
3933
3934 /* Open the logfile at this point and set the log mask if necessary.
3935 */
3936 if (log_file) {
3937 qemu_set_log_filename(log_file, &error_fatal);
3938 }
3939
3940 if (log_mask) {
3941 int mask;
3942 mask = qemu_str_to_log_mask(log_mask);
3943 if (!mask) {
3944 qemu_print_log_usage(stdout);
3945 exit(1);
3946 }
3947 qemu_set_log(mask);
3948 } else {
3949 qemu_set_log(0);
3950 }
3951
3952 /* add configured firmware directories */
3953 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3954 for (i = 0; dirs[i] != NULL; i++) {
3955 qemu_add_data_dir(dirs[i]);
3956 }
3957 g_strfreev(dirs);
3958
3959 /* try to find datadir relative to the executable path */
3960 dir = os_find_datadir();
3961 qemu_add_data_dir(dir);
3962 g_free(dir);
3963
3964 /* add the datadir specified when building */
3965 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3966
3967 /* -L help lists the data directories and exits. */
3968 if (list_data_dirs) {
3969 for (i = 0; i < data_dir_idx; i++) {
3970 printf("%s\n", data_dir[i]);
3971 }
3972 exit(0);
3973 }
3974
3975 /* machine_class: default to UP */
3976 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3977 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3978 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3979
3980 /* default to machine_class->default_cpus */
3981 current_machine->smp.cpus = machine_class->default_cpus;
3982 current_machine->smp.max_cpus = machine_class->default_cpus;
3983 current_machine->smp.cores = 1;
3984 current_machine->smp.threads = 1;
3985
3986 machine_class->smp_parse(current_machine,
3987 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3988
3989 /* sanity-check smp_cpus and max_cpus against machine_class */
3990 if (current_machine->smp.cpus < machine_class->min_cpus) {
3991 error_report("Invalid SMP CPUs %d. The min CPUs "
3992 "supported by machine '%s' is %d",
3993 current_machine->smp.cpus,
3994 machine_class->name, machine_class->min_cpus);
3995 exit(1);
3996 }
3997 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3998 error_report("Invalid SMP CPUs %d. The max CPUs "
3999 "supported by machine '%s' is %d",
4000 current_machine->smp.max_cpus,
4001 machine_class->name, machine_class->max_cpus);
4002 exit(1);
4003 }
4004
4005 /*
4006 * Get the default machine options from the machine if it is not already
4007 * specified either by the configuration file or by the command line.
4008 */
4009 if (machine_class->default_machine_opts) {
4010 qemu_opts_set_defaults(qemu_find_opts("machine"),
4011 machine_class->default_machine_opts, 0);
4012 }
4013
4014 qemu_opts_foreach(qemu_find_opts("device"),
4015 default_driver_check, NULL, NULL);
4016 qemu_opts_foreach(qemu_find_opts("global"),
4017 default_driver_check, NULL, NULL);
4018
4019 if (!vga_model && !default_vga) {
4020 vga_interface_type = VGA_DEVICE;
4021 }
4022 if (!has_defaults || machine_class->no_serial) {
4023 default_serial = 0;
4024 }
4025 if (!has_defaults || machine_class->no_parallel) {
4026 default_parallel = 0;
4027 }
4028 if (!has_defaults || machine_class->no_floppy) {
4029 default_floppy = 0;
4030 }
4031 if (!has_defaults || machine_class->no_cdrom) {
4032 default_cdrom = 0;
4033 }
4034 if (!has_defaults || machine_class->no_sdcard) {
4035 default_sdcard = 0;
4036 }
4037 if (!has_defaults) {
4038 default_monitor = 0;
4039 default_net = 0;
4040 default_vga = 0;
4041 }
4042
4043 if (is_daemonized()) {
4044 if (!preconfig_exit_requested) {
4045 error_report("'preconfig' and 'daemonize' options are "
4046 "mutually exclusive");
4047 exit(EXIT_FAILURE);
4048 }
4049
4050 /* According to documentation and historically, -nographic redirects
4051 * serial port, parallel port and monitor to stdio, which does not work
4052 * with -daemonize. We can redirect these to null instead, but since
4053 * -nographic is legacy, let's just error out.
4054 * We disallow -nographic only if all other ports are not redirected
4055 * explicitly, to not break existing legacy setups which uses
4056 * -nographic _and_ redirects all ports explicitly - this is valid
4057 * usage, -nographic is just a no-op in this case.
4058 */
4059 if (nographic
4060 && (default_parallel || default_serial || default_monitor)) {
4061 error_report("-nographic cannot be used with -daemonize");
4062 exit(1);
4063 }
4064 #ifdef CONFIG_CURSES
4065 if (dpy.type == DISPLAY_TYPE_CURSES) {
4066 error_report("curses display cannot be used with -daemonize");
4067 exit(1);
4068 }
4069 #endif
4070 }
4071
4072 if (nographic) {
4073 if (default_parallel)
4074 add_device_config(DEV_PARALLEL, "null");
4075 if (default_serial && default_monitor) {
4076 add_device_config(DEV_SERIAL, "mon:stdio");
4077 } else {
4078 if (default_serial)
4079 add_device_config(DEV_SERIAL, "stdio");
4080 if (default_monitor)
4081 monitor_parse("stdio", "readline", false);
4082 }
4083 } else {
4084 if (default_serial)
4085 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4086 if (default_parallel)
4087 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4088 if (default_monitor)
4089 monitor_parse("vc:80Cx24C", "readline", false);
4090 }
4091
4092 #if defined(CONFIG_VNC)
4093 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4094 display_remote++;
4095 }
4096 #endif
4097 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4098 if (!qemu_display_find_default(&dpy)) {
4099 dpy.type = DISPLAY_TYPE_NONE;
4100 #if defined(CONFIG_VNC)
4101 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4102 #endif
4103 }
4104 }
4105 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4106 dpy.type = DISPLAY_TYPE_NONE;
4107 }
4108
4109 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4110 error_report("-alt-grab and -ctrl-grab are only valid "
4111 "for SDL, ignoring option");
4112 }
4113 if (dpy.has_window_close &&
4114 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4115 error_report("-no-quit is only valid for GTK and SDL, "
4116 "ignoring option");
4117 }
4118
4119 qemu_display_early_init(&dpy);
4120 qemu_console_early_init();
4121
4122 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4123 #if defined(CONFIG_OPENGL)
4124 error_report("OpenGL is not supported by the display");
4125 #else
4126 error_report("OpenGL support is disabled");
4127 #endif
4128 exit(1);
4129 }
4130
4131 page_size_init();
4132 socket_init();
4133
4134 qemu_opts_foreach(qemu_find_opts("object"),
4135 user_creatable_add_opts_foreach,
4136 object_create_initial, &error_fatal);
4137
4138 qemu_opts_foreach(qemu_find_opts("chardev"),
4139 chardev_init_func, NULL, &error_fatal);
4140 /* now chardevs have been created we may have semihosting to connect */
4141 qemu_semihosting_connect_chardevs();
4142
4143 #ifdef CONFIG_VIRTFS
4144 qemu_opts_foreach(qemu_find_opts("fsdev"),
4145 fsdev_init_func, NULL, &error_fatal);
4146 #endif
4147
4148 if (qemu_opts_foreach(qemu_find_opts("device"),
4149 device_help_func, NULL, NULL)) {
4150 exit(0);
4151 }
4152
4153 /*
4154 * Note: we need to create block backends before
4155 * machine_set_property(), so machine properties can refer to
4156 * them.
4157 */
4158 configure_blockdev(&bdo_queue, machine_class, snapshot);
4159
4160 machine_opts = qemu_get_machine_opts();
4161 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4162 &error_fatal);
4163 current_machine->ram_size = ram_size;
4164 current_machine->maxram_size = maxram_size;
4165 current_machine->ram_slots = ram_slots;
4166
4167 /*
4168 * Note: uses machine properties such as kernel-irqchip, must run
4169 * after machine_set_property().
4170 */
4171 configure_accelerator(current_machine, argv[0]);
4172
4173 /*
4174 * Beware, QOM objects created before this point miss global and
4175 * compat properties.
4176 *
4177 * Global properties get set up by qdev_prop_register_global(),
4178 * called from user_register_global_props(), and certain option
4179 * desugaring. Also in CPU feature desugaring (buried in
4180 * parse_cpu_option()), which happens below this point, but may
4181 * only target the CPU type, which can only be created after
4182 * parse_cpu_option() returned the type.
4183 *
4184 * Machine compat properties: object_set_machine_compat_props().
4185 * Accelerator compat props: object_set_accelerator_compat_props(),
4186 * called from configure_accelerator().
4187 */
4188
4189 if (!qtest_enabled() && machine_class->deprecation_reason) {
4190 error_report("Machine type '%s' is deprecated: %s",
4191 machine_class->name, machine_class->deprecation_reason);
4192 }
4193
4194 /*
4195 * Note: creates a QOM object, must run only after global and
4196 * compat properties have been set up.
4197 */
4198 migration_object_init();
4199
4200 if (qtest_chrdev) {
4201 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4202 }
4203
4204 machine_opts = qemu_get_machine_opts();
4205 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4206 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4207 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4208 bios_name = qemu_opt_get(machine_opts, "firmware");
4209
4210 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4211 if (opts) {
4212 boot_order = qemu_opt_get(opts, "order");
4213 if (boot_order) {
4214 validate_bootdevices(boot_order, &error_fatal);
4215 }
4216
4217 boot_once = qemu_opt_get(opts, "once");
4218 if (boot_once) {
4219 validate_bootdevices(boot_once, &error_fatal);
4220 }
4221
4222 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4223 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4224 }
4225
4226 if (!boot_order) {
4227 boot_order = machine_class->default_boot_order;
4228 }
4229
4230 if (!kernel_cmdline) {
4231 kernel_cmdline = "";
4232 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4233 }
4234
4235 linux_boot = (kernel_filename != NULL);
4236
4237 if (!linux_boot && *kernel_cmdline != '\0') {
4238 error_report("-append only allowed with -kernel option");
4239 exit(1);
4240 }
4241
4242 if (!linux_boot && initrd_filename != NULL) {
4243 error_report("-initrd only allowed with -kernel option");
4244 exit(1);
4245 }
4246
4247 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4248 /* fall back to the -kernel/-append */
4249 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4250 }
4251
4252 /* spice needs the timers to be initialized by this point */
4253 qemu_spice_init();
4254
4255 cpu_ticks_init();
4256 if (icount_opts) {
4257 if (!tcg_enabled()) {
4258 error_report("-icount is not allowed with hardware virtualization");
4259 exit(1);
4260 }
4261 configure_icount(icount_opts, &error_abort);
4262 qemu_opts_del(icount_opts);
4263 }
4264
4265 if (tcg_enabled()) {
4266 qemu_tcg_configure(accel_opts, &error_fatal);
4267 }
4268
4269 if (default_net) {
4270 QemuOptsList *net = qemu_find_opts("net");
4271 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4272 #ifdef CONFIG_SLIRP
4273 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4274 #endif
4275 }
4276
4277 if (net_init_clients(&err) < 0) {
4278 error_report_err(err);
4279 exit(1);
4280 }
4281
4282 qemu_opts_foreach(qemu_find_opts("object"),
4283 user_creatable_add_opts_foreach,
4284 object_create_delayed, &error_fatal);
4285
4286 tpm_init();
4287
4288 /* init the bluetooth world */
4289 if (foreach_device_config(DEV_BT, bt_parse))
4290 exit(1);
4291
4292 if (!xen_enabled()) {
4293 /* On 32-bit hosts, QEMU is limited by virtual address space */
4294 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4295 error_report("at most 2047 MB RAM can be simulated");
4296 exit(1);
4297 }
4298 }
4299
4300 blk_mig_init();
4301 ram_mig_init();
4302 dirty_bitmap_mig_init();
4303
4304 qemu_opts_foreach(qemu_find_opts("mon"),
4305 mon_init_func, NULL, &error_fatal);
4306
4307 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4308 exit(1);
4309 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4310 exit(1);
4311 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4312 exit(1);
4313
4314 /* If no default VGA is requested, the default is "none". */
4315 if (default_vga) {
4316 vga_model = get_default_vga_model(machine_class);
4317 }
4318 if (vga_model) {
4319 select_vgahw(machine_class, vga_model);
4320 }
4321
4322 if (watchdog) {
4323 i = select_watchdog(watchdog);
4324 if (i > 0)
4325 exit (i == 1 ? 1 : 0);
4326 }
4327
4328 /* This checkpoint is required by replay to separate prior clock
4329 reading from the other reads, because timer polling functions query
4330 clock values from the log. */
4331 replay_checkpoint(CHECKPOINT_INIT);
4332 qdev_machine_init();
4333
4334 current_machine->boot_order = boot_order;
4335
4336 /* parse features once if machine provides default cpu_type */
4337 current_machine->cpu_type = machine_class->default_cpu_type;
4338 if (cpu_option) {
4339 current_machine->cpu_type = parse_cpu_option(cpu_option);
4340 }
4341 parse_numa_opts(current_machine);
4342
4343 /* do monitor/qmp handling at preconfig state if requested */
4344 main_loop();
4345
4346 audio_init_audiodevs();
4347
4348 /* from here on runstate is RUN_STATE_PRELAUNCH */
4349 machine_run_board_init(current_machine);
4350
4351 realtime_init();
4352
4353 soundhw_init();
4354
4355 if (hax_enabled()) {
4356 hax_sync_vcpus();
4357 }
4358
4359 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4360 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4361
4362 /* init USB devices */
4363 if (machine_usb(current_machine)) {
4364 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4365 exit(1);
4366 }
4367
4368 /* Check if IGD GFX passthrough. */
4369 igd_gfx_passthru();
4370
4371 /* init generic devices */
4372 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4373 qemu_opts_foreach(qemu_find_opts("device"),
4374 device_init_func, NULL, &error_fatal);
4375
4376 cpu_synchronize_all_post_init();
4377
4378 rom_reset_order_override();
4379
4380 /* Did we create any drives that we failed to create a device for? */
4381 drive_check_orphaned();
4382
4383 /* Don't warn about the default network setup that you get if
4384 * no command line -net or -netdev options are specified. There
4385 * are two cases that we would otherwise complain about:
4386 * (1) board doesn't support a NIC but the implicit "-net nic"
4387 * requested one
4388 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4389 * sets up a nic that isn't connected to anything.
4390 */
4391 if (!default_net && (!qtest_enabled() || has_defaults)) {
4392 net_check_clients();
4393 }
4394
4395 if (boot_once) {
4396 qemu_boot_set(boot_once, &error_fatal);
4397 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4398 }
4399
4400 /* init local displays */
4401 ds = init_displaystate();
4402 qemu_display_init(ds, &dpy);
4403
4404 /* must be after terminal init, SDL library changes signal handlers */
4405 os_setup_signal_handling();
4406
4407 /* init remote displays */
4408 #ifdef CONFIG_VNC
4409 qemu_opts_foreach(qemu_find_opts("vnc"),
4410 vnc_init_func, NULL, &error_fatal);
4411 #endif
4412
4413 if (using_spice) {
4414 qemu_spice_display_init();
4415 }
4416
4417 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4418 exit(1);
4419 }
4420
4421 qdev_machine_creation_done();
4422
4423 /* TODO: once all bus devices are qdevified, this should be done
4424 * when bus is created by qdev.c */
4425 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4426 qemu_run_machine_init_done_notifiers();
4427
4428 if (rom_check_and_register_reset() != 0) {
4429 error_report("rom check and register reset failed");
4430 exit(1);
4431 }
4432
4433 replay_start();
4434
4435 /* This checkpoint is required by replay to separate prior clock
4436 reading from the other reads, because timer polling functions query
4437 clock values from the log. */
4438 replay_checkpoint(CHECKPOINT_RESET);
4439 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4440 register_global_state();
4441 if (loadvm) {
4442 Error *local_err = NULL;
4443 if (load_snapshot(loadvm, &local_err) < 0) {
4444 error_report_err(local_err);
4445 autostart = 0;
4446 exit(1);
4447 }
4448 }
4449 if (replay_mode != REPLAY_MODE_NONE) {
4450 replay_vmstate_init();
4451 }
4452
4453 qdev_prop_check_globals();
4454 if (vmstate_dump_file) {
4455 /* dump and exit */
4456 dump_vmstate_json_to_file(vmstate_dump_file);
4457 return 0;
4458 }
4459
4460 if (incoming) {
4461 Error *local_err = NULL;
4462 qemu_start_incoming_migration(incoming, &local_err);
4463 if (local_err) {
4464 error_reportf_err(local_err, "-incoming %s: ", incoming);
4465 exit(1);
4466 }
4467 } else if (autostart) {
4468 vm_start();
4469 }
4470
4471 accel_setup_post(current_machine);
4472 os_setup_post();
4473
4474 main_loop();
4475
4476 gdbserver_cleanup();
4477
4478 /*
4479 * cleaning up the migration object cancels any existing migration
4480 * try to do this early so that it also stops using devices.
4481 */
4482 migration_shutdown();
4483
4484 /*
4485 * We must cancel all block jobs while the block layer is drained,
4486 * or cancelling will be affected by throttling and thus may block
4487 * for an extended period of time.
4488 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4489 * it in the drained section.
4490 * We do not need to end this section, because we do not want any
4491 * requests happening from here on anyway.
4492 */
4493 bdrv_drain_all_begin();
4494
4495 /* No more vcpu or device emulation activity beyond this point */
4496 vm_shutdown();
4497
4498 job_cancel_sync_all();
4499 bdrv_close_all();
4500
4501 res_free();
4502
4503 /* vhost-user must be cleaned up before chardevs. */
4504 tpm_cleanup();
4505 net_cleanup();
4506 audio_cleanup();
4507 monitor_cleanup();
4508 qemu_chr_cleanup();
4509 user_creatable_cleanup();
4510 /* TODO: unref root container, check all devices are ok */
4511
4512 return 0;
4513 }
QEmu