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