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configure: Allow user to specify sphinx-build binary
[qemu.git] / vl.c
blobb0ee318f9950e4e6a0297d44dde20abea5a4f156
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 graphic_rotate = 0;
172 const char *watchdog;
173 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
174 int nb_option_roms;
175 int old_param = 0;
176 const char *qemu_name;
177 int alt_grab = 0;
178 int ctrl_grab = 0;
179 unsigned int nb_prom_envs = 0;
180 const char *prom_envs[MAX_PROM_ENVS];
181 int boot_menu;
182 bool boot_strict;
183 uint8_t *boot_splash_filedata;
184 int only_migratable; /* turn it off unless user states otherwise */
185 bool wakeup_suspend_enabled;
186
187 int icount_align_option;
188
189 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
190 * little-endian "wire format" described in the SMBIOS 2.6 specification.
191 */
192 QemuUUID qemu_uuid;
193 bool qemu_uuid_set;
194
195 static NotifierList exit_notifiers =
196 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
197
198 static NotifierList machine_init_done_notifiers =
199 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
200
201 bool xen_allowed;
202 uint32_t xen_domid;
203 enum xen_mode xen_mode = XEN_EMULATE;
204 bool xen_domid_restrict;
205
206 static int has_defaults = 1;
207 static int default_serial = 1;
208 static int default_parallel = 1;
209 static int default_monitor = 1;
210 static int default_floppy = 1;
211 static int default_cdrom = 1;
212 static int default_sdcard = 1;
213 static int default_vga = 1;
214 static int default_net = 1;
215
216 static struct {
217 const char *driver;
218 int *flag;
219 } default_list[] = {
220 { .driver = "isa-serial", .flag = &default_serial },
221 { .driver = "isa-parallel", .flag = &default_parallel },
222 { .driver = "isa-fdc", .flag = &default_floppy },
223 { .driver = "floppy", .flag = &default_floppy },
224 { .driver = "ide-cd", .flag = &default_cdrom },
225 { .driver = "ide-hd", .flag = &default_cdrom },
226 { .driver = "ide-drive", .flag = &default_cdrom },
227 { .driver = "scsi-cd", .flag = &default_cdrom },
228 { .driver = "scsi-hd", .flag = &default_cdrom },
229 { .driver = "VGA", .flag = &default_vga },
230 { .driver = "isa-vga", .flag = &default_vga },
231 { .driver = "cirrus-vga", .flag = &default_vga },
232 { .driver = "isa-cirrus-vga", .flag = &default_vga },
233 { .driver = "vmware-svga", .flag = &default_vga },
234 { .driver = "qxl-vga", .flag = &default_vga },
235 { .driver = "virtio-vga", .flag = &default_vga },
236 { .driver = "ati-vga", .flag = &default_vga },
237 { .driver = "vhost-user-vga", .flag = &default_vga },
238 };
239
240 static QemuOptsList qemu_rtc_opts = {
241 .name = "rtc",
242 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
243 .merge_lists = true,
244 .desc = {
245 {
246 .name = "base",
247 .type = QEMU_OPT_STRING,
248 },{
249 .name = "clock",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "driftfix",
253 .type = QEMU_OPT_STRING,
254 },
255 { /* end of list */ }
256 },
257 };
258
259 static QemuOptsList qemu_option_rom_opts = {
260 .name = "option-rom",
261 .implied_opt_name = "romfile",
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
263 .desc = {
264 {
265 .name = "bootindex",
266 .type = QEMU_OPT_NUMBER,
267 }, {
268 .name = "romfile",
269 .type = QEMU_OPT_STRING,
270 },
271 { /* end of list */ }
272 },
273 };
274
275 static QemuOptsList qemu_machine_opts = {
276 .name = "machine",
277 .implied_opt_name = "type",
278 .merge_lists = true,
279 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
280 .desc = {
281 /*
282 * no elements => accept any
283 * sanity checking will happen later
284 * when setting machine properties
285 */
286 { }
287 },
288 };
289
290 static QemuOptsList qemu_accel_opts = {
291 .name = "accel",
292 .implied_opt_name = "accel",
293 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
294 .desc = {
295 /*
296 * no elements => accept any
297 * sanity checking will happen later
298 * when setting accelerator properties
299 */
300 { }
301 },
302 };
303
304 static QemuOptsList qemu_boot_opts = {
305 .name = "boot-opts",
306 .implied_opt_name = "order",
307 .merge_lists = true,
308 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
309 .desc = {
310 {
311 .name = "order",
312 .type = QEMU_OPT_STRING,
313 }, {
314 .name = "once",
315 .type = QEMU_OPT_STRING,
316 }, {
317 .name = "menu",
318 .type = QEMU_OPT_BOOL,
319 }, {
320 .name = "splash",
321 .type = QEMU_OPT_STRING,
322 }, {
323 .name = "splash-time",
324 .type = QEMU_OPT_NUMBER,
325 }, {
326 .name = "reboot-timeout",
327 .type = QEMU_OPT_NUMBER,
328 }, {
329 .name = "strict",
330 .type = QEMU_OPT_BOOL,
331 },
332 { /*End of list */ }
333 },
334 };
335
336 static QemuOptsList qemu_add_fd_opts = {
337 .name = "add-fd",
338 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
339 .desc = {
340 {
341 .name = "fd",
342 .type = QEMU_OPT_NUMBER,
343 .help = "file descriptor of which a duplicate is added to fd set",
344 },{
345 .name = "set",
346 .type = QEMU_OPT_NUMBER,
347 .help = "ID of the fd set to add fd to",
348 },{
349 .name = "opaque",
350 .type = QEMU_OPT_STRING,
351 .help = "free-form string used to describe fd",
352 },
353 { /* end of list */ }
354 },
355 };
356
357 static QemuOptsList qemu_object_opts = {
358 .name = "object",
359 .implied_opt_name = "qom-type",
360 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
361 .desc = {
362 { }
363 },
364 };
365
366 static QemuOptsList qemu_tpmdev_opts = {
367 .name = "tpmdev",
368 .implied_opt_name = "type",
369 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
370 .desc = {
371 /* options are defined in the TPM backends */
372 { /* end of list */ }
373 },
374 };
375
376 static QemuOptsList qemu_realtime_opts = {
377 .name = "realtime",
378 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
379 .desc = {
380 {
381 .name = "mlock",
382 .type = QEMU_OPT_BOOL,
383 },
384 { /* end of list */ }
385 },
386 };
387
388 static QemuOptsList qemu_overcommit_opts = {
389 .name = "overcommit",
390 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
391 .desc = {
392 {
393 .name = "mem-lock",
394 .type = QEMU_OPT_BOOL,
395 },
396 {
397 .name = "cpu-pm",
398 .type = QEMU_OPT_BOOL,
399 },
400 { /* end of list */ }
401 },
402 };
403
404 static QemuOptsList qemu_msg_opts = {
405 .name = "msg",
406 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
407 .desc = {
408 {
409 .name = "timestamp",
410 .type = QEMU_OPT_BOOL,
411 },
412 { /* end of list */ }
413 },
414 };
415
416 static QemuOptsList qemu_name_opts = {
417 .name = "name",
418 .implied_opt_name = "guest",
419 .merge_lists = true,
420 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
421 .desc = {
422 {
423 .name = "guest",
424 .type = QEMU_OPT_STRING,
425 .help = "Sets the name of the guest.\n"
426 "This name will be displayed in the SDL window caption.\n"
427 "The name will also be used for the VNC server",
428 }, {
429 .name = "process",
430 .type = QEMU_OPT_STRING,
431 .help = "Sets the name of the QEMU process, as shown in top etc",
432 }, {
433 .name = "debug-threads",
434 .type = QEMU_OPT_BOOL,
435 .help = "When enabled, name the individual threads; defaults off.\n"
436 "NOTE: The thread names are for debugging and not a\n"
437 "stable API.",
438 },
439 { /* End of list */ }
440 },
441 };
442
443 static QemuOptsList qemu_mem_opts = {
444 .name = "memory",
445 .implied_opt_name = "size",
446 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
447 .merge_lists = true,
448 .desc = {
449 {
450 .name = "size",
451 .type = QEMU_OPT_SIZE,
452 },
453 {
454 .name = "slots",
455 .type = QEMU_OPT_NUMBER,
456 },
457 {
458 .name = "maxmem",
459 .type = QEMU_OPT_SIZE,
460 },
461 { /* end of list */ }
462 },
463 };
464
465 static QemuOptsList qemu_icount_opts = {
466 .name = "icount",
467 .implied_opt_name = "shift",
468 .merge_lists = true,
469 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
470 .desc = {
471 {
472 .name = "shift",
473 .type = QEMU_OPT_STRING,
474 }, {
475 .name = "align",
476 .type = QEMU_OPT_BOOL,
477 }, {
478 .name = "sleep",
479 .type = QEMU_OPT_BOOL,
480 }, {
481 .name = "rr",
482 .type = QEMU_OPT_STRING,
483 }, {
484 .name = "rrfile",
485 .type = QEMU_OPT_STRING,
486 }, {
487 .name = "rrsnapshot",
488 .type = QEMU_OPT_STRING,
489 },
490 { /* end of list */ }
491 },
492 };
493
494 static QemuOptsList qemu_fw_cfg_opts = {
495 .name = "fw_cfg",
496 .implied_opt_name = "name",
497 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
498 .desc = {
499 {
500 .name = "name",
501 .type = QEMU_OPT_STRING,
502 .help = "Sets the fw_cfg name of the blob to be inserted",
503 }, {
504 .name = "file",
505 .type = QEMU_OPT_STRING,
506 .help = "Sets the name of the file from which "
507 "the fw_cfg blob will be loaded",
508 }, {
509 .name = "string",
510 .type = QEMU_OPT_STRING,
511 .help = "Sets content of the blob to be inserted from a string",
512 },
513 { /* end of list */ }
514 },
515 };
516
517 /**
518 * Get machine options
519 *
520 * Returns: machine options (never null).
521 */
522 QemuOpts *qemu_get_machine_opts(void)
523 {
524 return qemu_find_opts_singleton("machine");
525 }
526
527 const char *qemu_get_vm_name(void)
528 {
529 return qemu_name;
530 }
531
532 static void res_free(void)
533 {
534 g_free(boot_splash_filedata);
535 boot_splash_filedata = NULL;
536 }
537
538 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
539 {
540 const char *driver = qemu_opt_get(opts, "driver");
541 int i;
542
543 if (!driver)
544 return 0;
545 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
546 if (strcmp(default_list[i].driver, driver) != 0)
547 continue;
548 *(default_list[i].flag) = 0;
549 }
550 return 0;
551 }
552
553 /***********************************************************/
554 /* QEMU state */
555
556 static RunState current_run_state = RUN_STATE_PRECONFIG;
557
558 /* We use RUN_STATE__MAX but any invalid value will do */
559 static RunState vmstop_requested = RUN_STATE__MAX;
560 static QemuMutex vmstop_lock;
561
562 typedef struct {
563 RunState from;
564 RunState to;
565 } RunStateTransition;
566
567 static const RunStateTransition runstate_transitions_def[] = {
568 /* from -> to */
569 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
570 /* Early switch to inmigrate state to allow -incoming CLI option work
571 * as it used to. TODO: delay actual switching to inmigrate state to
572 * the point after machine is built and remove this hack.
573 */
574 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
575
576 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
577 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
578 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
579
580 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
581 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
582 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
583 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
584 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
585 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
586 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
587 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
588 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
589 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
590 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
591 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
592
593 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
594 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
595 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
596
597 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
598 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
599 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
600
601 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
602 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
604 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
605 { RUN_STATE_PAUSED, RUN_STATE_COLO},
606
607 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
608 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
609 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
610
611 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
612 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
613 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
614
615 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
616 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
617 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
618 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
619 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
620
621 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
622 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
623
624 { RUN_STATE_COLO, RUN_STATE_RUNNING },
625
626 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
627 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
628 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
629 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
630 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
632 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
633 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
634 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
635 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
636 { RUN_STATE_RUNNING, RUN_STATE_COLO},
637
638 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
639
640 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
641 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
642 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
643
644 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
645 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
646 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
647 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
648 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
649 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
650
651 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
652 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
653 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
654 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
655
656 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
657 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
658 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
659
660 { RUN_STATE__MAX, RUN_STATE__MAX },
661 };
662
663 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
664
665 bool runstate_check(RunState state)
666 {
667 return current_run_state == state;
668 }
669
670 bool runstate_store(char *str, size_t size)
671 {
672 const char *state = RunState_str(current_run_state);
673 size_t len = strlen(state) + 1;
674
675 if (len > size) {
676 return false;
677 }
678 memcpy(str, state, len);
679 return true;
680 }
681
682 static void runstate_init(void)
683 {
684 const RunStateTransition *p;
685
686 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
687 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
688 runstate_valid_transitions[p->from][p->to] = true;
689 }
690
691 qemu_mutex_init(&vmstop_lock);
692 }
693
694 /* This function will abort() on invalid state transitions */
695 void runstate_set(RunState new_state)
696 {
697 assert(new_state < RUN_STATE__MAX);
698
699 trace_runstate_set(current_run_state, RunState_str(current_run_state),
700 new_state, RunState_str(new_state));
701
702 if (current_run_state == new_state) {
703 return;
704 }
705
706 if (!runstate_valid_transitions[current_run_state][new_state]) {
707 error_report("invalid runstate transition: '%s' -> '%s'",
708 RunState_str(current_run_state),
709 RunState_str(new_state));
710 abort();
711 }
712
713 current_run_state = new_state;
714 }
715
716 int runstate_is_running(void)
717 {
718 return runstate_check(RUN_STATE_RUNNING);
719 }
720
721 bool runstate_needs_reset(void)
722 {
723 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
724 runstate_check(RUN_STATE_SHUTDOWN);
725 }
726
727 StatusInfo *qmp_query_status(Error **errp)
728 {
729 StatusInfo *info = g_malloc0(sizeof(*info));
730
731 info->running = runstate_is_running();
732 info->singlestep = singlestep;
733 info->status = current_run_state;
734
735 return info;
736 }
737
738 bool qemu_vmstop_requested(RunState *r)
739 {
740 qemu_mutex_lock(&vmstop_lock);
741 *r = vmstop_requested;
742 vmstop_requested = RUN_STATE__MAX;
743 qemu_mutex_unlock(&vmstop_lock);
744 return *r < RUN_STATE__MAX;
745 }
746
747 void qemu_system_vmstop_request_prepare(void)
748 {
749 qemu_mutex_lock(&vmstop_lock);
750 }
751
752 void qemu_system_vmstop_request(RunState state)
753 {
754 vmstop_requested = state;
755 qemu_mutex_unlock(&vmstop_lock);
756 qemu_notify_event();
757 }
758
759 /***********************************************************/
760 /* RTC reference time/date access */
761 static time_t qemu_ref_timedate(QEMUClockType clock)
762 {
763 time_t value = qemu_clock_get_ms(clock) / 1000;
764 switch (clock) {
765 case QEMU_CLOCK_REALTIME:
766 value -= rtc_realtime_clock_offset;
767 /* fall through */
768 case QEMU_CLOCK_VIRTUAL:
769 value += rtc_ref_start_datetime;
770 break;
771 case QEMU_CLOCK_HOST:
772 if (rtc_base_type == RTC_BASE_DATETIME) {
773 value -= rtc_host_datetime_offset;
774 }
775 break;
776 default:
777 assert(0);
778 }
779 return value;
780 }
781
782 void qemu_get_timedate(struct tm *tm, int offset)
783 {
784 time_t ti = qemu_ref_timedate(rtc_clock);
785
786 ti += offset;
787
788 switch (rtc_base_type) {
789 case RTC_BASE_DATETIME:
790 case RTC_BASE_UTC:
791 gmtime_r(&ti, tm);
792 break;
793 case RTC_BASE_LOCALTIME:
794 localtime_r(&ti, tm);
795 break;
796 }
797 }
798
799 int qemu_timedate_diff(struct tm *tm)
800 {
801 time_t seconds;
802
803 switch (rtc_base_type) {
804 case RTC_BASE_DATETIME:
805 case RTC_BASE_UTC:
806 seconds = mktimegm(tm);
807 break;
808 case RTC_BASE_LOCALTIME:
809 {
810 struct tm tmp = *tm;
811 tmp.tm_isdst = -1; /* use timezone to figure it out */
812 seconds = mktime(&tmp);
813 break;
814 }
815 default:
816 abort();
817 }
818
819 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
820 }
821
822 static void configure_rtc_base_datetime(const char *startdate)
823 {
824 time_t rtc_start_datetime;
825 struct tm tm;
826
827 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
828 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
829 /* OK */
830 } else if (sscanf(startdate, "%d-%d-%d",
831 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
832 tm.tm_hour = 0;
833 tm.tm_min = 0;
834 tm.tm_sec = 0;
835 } else {
836 goto date_fail;
837 }
838 tm.tm_year -= 1900;
839 tm.tm_mon--;
840 rtc_start_datetime = mktimegm(&tm);
841 if (rtc_start_datetime == -1) {
842 date_fail:
843 error_report("invalid datetime format");
844 error_printf("valid formats: "
845 "'2006-06-17T16:01:21' or '2006-06-17'\n");
846 exit(1);
847 }
848 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
849 rtc_ref_start_datetime = rtc_start_datetime;
850 }
851
852 static void configure_rtc(QemuOpts *opts)
853 {
854 const char *value;
855
856 /* Set defaults */
857 rtc_clock = QEMU_CLOCK_HOST;
858 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
859 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
860
861 value = qemu_opt_get(opts, "base");
862 if (value) {
863 if (!strcmp(value, "utc")) {
864 rtc_base_type = RTC_BASE_UTC;
865 } else if (!strcmp(value, "localtime")) {
866 Error *blocker = NULL;
867 rtc_base_type = RTC_BASE_LOCALTIME;
868 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
869 "-rtc base=localtime");
870 replay_add_blocker(blocker);
871 } else {
872 rtc_base_type = RTC_BASE_DATETIME;
873 configure_rtc_base_datetime(value);
874 }
875 }
876 value = qemu_opt_get(opts, "clock");
877 if (value) {
878 if (!strcmp(value, "host")) {
879 rtc_clock = QEMU_CLOCK_HOST;
880 } else if (!strcmp(value, "rt")) {
881 rtc_clock = QEMU_CLOCK_REALTIME;
882 } else if (!strcmp(value, "vm")) {
883 rtc_clock = QEMU_CLOCK_VIRTUAL;
884 } else {
885 error_report("invalid option value '%s'", value);
886 exit(1);
887 }
888 }
889 value = qemu_opt_get(opts, "driftfix");
890 if (value) {
891 if (!strcmp(value, "slew")) {
892 object_register_sugar_prop("mc146818rtc",
893 "lost_tick_policy",
894 "slew");
895 } else if (!strcmp(value, "none")) {
896 /* discard is default */
897 } else {
898 error_report("invalid option value '%s'", value);
899 exit(1);
900 }
901 }
902 }
903
904 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
905 {
906 const char *proc_name;
907
908 if (qemu_opt_get(opts, "debug-threads")) {
909 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
910 }
911 qemu_name = qemu_opt_get(opts, "guest");
912
913 proc_name = qemu_opt_get(opts, "process");
914 if (proc_name) {
915 os_set_proc_name(proc_name);
916 }
917
918 return 0;
919 }
920
921 bool defaults_enabled(void)
922 {
923 return has_defaults;
924 }
925
926 #ifndef _WIN32
927 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
928 {
929 int fd, dupfd, flags;
930 int64_t fdset_id;
931 const char *fd_opaque = NULL;
932 AddfdInfo *fdinfo;
933
934 fd = qemu_opt_get_number(opts, "fd", -1);
935 fdset_id = qemu_opt_get_number(opts, "set", -1);
936 fd_opaque = qemu_opt_get(opts, "opaque");
937
938 if (fd < 0) {
939 error_setg(errp, "fd option is required and must be non-negative");
940 return -1;
941 }
942
943 if (fd <= STDERR_FILENO) {
944 error_setg(errp, "fd cannot be a standard I/O stream");
945 return -1;
946 }
947
948 /*
949 * All fds inherited across exec() necessarily have FD_CLOEXEC
950 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
951 */
952 flags = fcntl(fd, F_GETFD);
953 if (flags == -1 || (flags & FD_CLOEXEC)) {
954 error_setg(errp, "fd is not valid or already in use");
955 return -1;
956 }
957
958 if (fdset_id < 0) {
959 error_setg(errp, "set option is required and must be non-negative");
960 return -1;
961 }
962
963 #ifdef F_DUPFD_CLOEXEC
964 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
965 #else
966 dupfd = dup(fd);
967 if (dupfd != -1) {
968 qemu_set_cloexec(dupfd);
969 }
970 #endif
971 if (dupfd == -1) {
972 error_setg(errp, "error duplicating fd: %s", strerror(errno));
973 return -1;
974 }
975
976 /* add the duplicate fd, and optionally the opaque string, to the fd set */
977 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
978 &error_abort);
979 g_free(fdinfo);
980
981 return 0;
982 }
983
984 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
985 {
986 int fd;
987
988 fd = qemu_opt_get_number(opts, "fd", -1);
989 close(fd);
990
991 return 0;
992 }
993 #endif
994
995 /***********************************************************/
996 /* QEMU Block devices */
997
998 #define HD_OPTS "media=disk"
999 #define CDROM_OPTS "media=cdrom"
1000 #define FD_OPTS ""
1001 #define PFLASH_OPTS ""
1002 #define MTD_OPTS ""
1003 #define SD_OPTS ""
1004
1005 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1006 {
1007 BlockInterfaceType *block_default_type = opaque;
1008
1009 return drive_new(opts, *block_default_type, errp) == NULL;
1010 }
1011
1012 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1013 {
1014 if (qemu_opt_get(opts, "snapshot") == NULL) {
1015 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1016 }
1017 return 0;
1018 }
1019
1020 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1021 int index, const char *optstr)
1022 {
1023 QemuOpts *opts;
1024 DriveInfo *dinfo;
1025
1026 if (!enable || drive_get_by_index(type, index)) {
1027 return;
1028 }
1029
1030 opts = drive_add(type, index, NULL, optstr);
1031 if (snapshot) {
1032 drive_enable_snapshot(NULL, opts, NULL);
1033 }
1034
1035 dinfo = drive_new(opts, type, &error_abort);
1036 dinfo->is_default = true;
1037
1038 }
1039
1040 typedef struct BlockdevOptionsQueueEntry {
1041 BlockdevOptions *bdo;
1042 Location loc;
1043 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1044 } BlockdevOptionsQueueEntry;
1045
1046 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1047
1048 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1049 MachineClass *machine_class, int snapshot)
1050 {
1051 /*
1052 * If the currently selected machine wishes to override the
1053 * units-per-bus property of its default HBA interface type, do so
1054 * now.
1055 */
1056 if (machine_class->units_per_default_bus) {
1057 override_max_devs(machine_class->block_default_type,
1058 machine_class->units_per_default_bus);
1059 }
1060
1061 /* open the virtual block devices */
1062 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1063 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1064
1065 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1066 loc_push_restore(&bdo->loc);
1067 qmp_blockdev_add(bdo->bdo, &error_fatal);
1068 loc_pop(&bdo->loc);
1069 qapi_free_BlockdevOptions(bdo->bdo);
1070 g_free(bdo);
1071 }
1072 if (snapshot) {
1073 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1074 NULL, NULL);
1075 }
1076 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1077 &machine_class->block_default_type, &error_fatal)) {
1078 /* We printed help */
1079 exit(0);
1080 }
1081
1082 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1083 CDROM_OPTS);
1084 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1085 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1086
1087 }
1088
1089 static QemuOptsList qemu_smp_opts = {
1090 .name = "smp-opts",
1091 .implied_opt_name = "cpus",
1092 .merge_lists = true,
1093 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1094 .desc = {
1095 {
1096 .name = "cpus",
1097 .type = QEMU_OPT_NUMBER,
1098 }, {
1099 .name = "sockets",
1100 .type = QEMU_OPT_NUMBER,
1101 }, {
1102 .name = "dies",
1103 .type = QEMU_OPT_NUMBER,
1104 }, {
1105 .name = "cores",
1106 .type = QEMU_OPT_NUMBER,
1107 }, {
1108 .name = "threads",
1109 .type = QEMU_OPT_NUMBER,
1110 }, {
1111 .name = "maxcpus",
1112 .type = QEMU_OPT_NUMBER,
1113 },
1114 { /*End of list */ }
1115 },
1116 };
1117
1118 static void realtime_init(void)
1119 {
1120 if (enable_mlock) {
1121 if (os_mlock() < 0) {
1122 error_report("locking memory failed");
1123 exit(1);
1124 }
1125 }
1126 }
1127
1128
1129 static void configure_msg(QemuOpts *opts)
1130 {
1131 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1132 }
1133
1134
1135 /***********************************************************/
1136 /* USB devices */
1137
1138 static int usb_device_add(const char *devname)
1139 {
1140 USBDevice *dev = NULL;
1141
1142 if (!machine_usb(current_machine)) {
1143 return -1;
1144 }
1145
1146 dev = usbdevice_create(devname);
1147 if (!dev)
1148 return -1;
1149
1150 return 0;
1151 }
1152
1153 static int usb_parse(const char *cmdline)
1154 {
1155 int r;
1156 r = usb_device_add(cmdline);
1157 if (r < 0) {
1158 error_report("could not add USB device '%s'", cmdline);
1159 }
1160 return r;
1161 }
1162
1163 /***********************************************************/
1164 /* machine registration */
1165
1166 MachineState *current_machine;
1167
1168 static MachineClass *find_machine(const char *name, GSList *machines)
1169 {
1170 GSList *el;
1171
1172 for (el = machines; el; el = el->next) {
1173 MachineClass *mc = el->data;
1174
1175 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1176 return mc;
1177 }
1178 }
1179
1180 return NULL;
1181 }
1182
1183 static MachineClass *find_default_machine(GSList *machines)
1184 {
1185 GSList *el;
1186
1187 for (el = machines; el; el = el->next) {
1188 MachineClass *mc = el->data;
1189
1190 if (mc->is_default) {
1191 return mc;
1192 }
1193 }
1194
1195 return NULL;
1196 }
1197
1198 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1199 {
1200 ObjectProperty *prop;
1201 ObjectPropertyIterator iter;
1202
1203 if (!qemu_opt_has_help_opt(opts)) {
1204 return 0;
1205 }
1206
1207 object_property_iter_init(&iter, OBJECT(machine));
1208 while ((prop = object_property_iter_next(&iter))) {
1209 if (!prop->set) {
1210 continue;
1211 }
1212
1213 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1214 prop->name, prop->type);
1215 if (prop->description) {
1216 printf(" (%s)\n", prop->description);
1217 } else {
1218 printf("\n");
1219 }
1220 }
1221
1222 return 1;
1223 }
1224
1225 struct VMChangeStateEntry {
1226 VMChangeStateHandler *cb;
1227 void *opaque;
1228 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1229 int priority;
1230 };
1231
1232 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1233
1234 /**
1235 * qemu_add_vm_change_state_handler_prio:
1236 * @cb: the callback to invoke
1237 * @opaque: user data passed to the callback
1238 * @priority: low priorities execute first when the vm runs and the reverse is
1239 * true when the vm stops
1240 *
1241 * Register a callback function that is invoked when the vm starts or stops
1242 * running.
1243 *
1244 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1245 */
1246 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1247 VMChangeStateHandler *cb, void *opaque, int priority)
1248 {
1249 VMChangeStateEntry *e;
1250 VMChangeStateEntry *other;
1251
1252 e = g_malloc0(sizeof(*e));
1253 e->cb = cb;
1254 e->opaque = opaque;
1255 e->priority = priority;
1256
1257 /* Keep list sorted in ascending priority order */
1258 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1259 if (priority < other->priority) {
1260 QTAILQ_INSERT_BEFORE(other, e, entries);
1261 return e;
1262 }
1263 }
1264
1265 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1266 return e;
1267 }
1268
1269 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1270 void *opaque)
1271 {
1272 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1273 }
1274
1275 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1276 {
1277 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1278 g_free(e);
1279 }
1280
1281 void vm_state_notify(int running, RunState state)
1282 {
1283 VMChangeStateEntry *e, *next;
1284
1285 trace_vm_state_notify(running, state, RunState_str(state));
1286
1287 if (running) {
1288 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1289 e->cb(e->opaque, running, state);
1290 }
1291 } else {
1292 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1293 e->cb(e->opaque, running, state);
1294 }
1295 }
1296 }
1297
1298 static ShutdownCause reset_requested;
1299 static ShutdownCause shutdown_requested;
1300 static int shutdown_signal;
1301 static pid_t shutdown_pid;
1302 static int powerdown_requested;
1303 static int debug_requested;
1304 static int suspend_requested;
1305 static bool preconfig_exit_requested = true;
1306 static WakeupReason wakeup_reason;
1307 static NotifierList powerdown_notifiers =
1308 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1309 static NotifierList suspend_notifiers =
1310 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1311 static NotifierList wakeup_notifiers =
1312 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1313 static NotifierList shutdown_notifiers =
1314 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1315 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1316
1317 ShutdownCause qemu_shutdown_requested_get(void)
1318 {
1319 return shutdown_requested;
1320 }
1321
1322 ShutdownCause qemu_reset_requested_get(void)
1323 {
1324 return reset_requested;
1325 }
1326
1327 static int qemu_shutdown_requested(void)
1328 {
1329 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1330 }
1331
1332 static void qemu_kill_report(void)
1333 {
1334 if (!qtest_driver() && shutdown_signal) {
1335 if (shutdown_pid == 0) {
1336 /* This happens for eg ^C at the terminal, so it's worth
1337 * avoiding printing an odd message in that case.
1338 */
1339 error_report("terminating on signal %d", shutdown_signal);
1340 } else {
1341 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1342
1343 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1344 shutdown_signal, shutdown_pid,
1345 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1346 g_free(shutdown_cmd);
1347 }
1348 shutdown_signal = 0;
1349 }
1350 }
1351
1352 static ShutdownCause qemu_reset_requested(void)
1353 {
1354 ShutdownCause r = reset_requested;
1355
1356 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1357 reset_requested = SHUTDOWN_CAUSE_NONE;
1358 return r;
1359 }
1360 return SHUTDOWN_CAUSE_NONE;
1361 }
1362
1363 static int qemu_suspend_requested(void)
1364 {
1365 int r = suspend_requested;
1366 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1367 suspend_requested = 0;
1368 return r;
1369 }
1370 return false;
1371 }
1372
1373 static WakeupReason qemu_wakeup_requested(void)
1374 {
1375 return wakeup_reason;
1376 }
1377
1378 static int qemu_powerdown_requested(void)
1379 {
1380 int r = powerdown_requested;
1381 powerdown_requested = 0;
1382 return r;
1383 }
1384
1385 static int qemu_debug_requested(void)
1386 {
1387 int r = debug_requested;
1388 debug_requested = 0;
1389 return r;
1390 }
1391
1392 void qemu_exit_preconfig_request(void)
1393 {
1394 preconfig_exit_requested = true;
1395 }
1396
1397 /*
1398 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1399 */
1400 void qemu_system_reset(ShutdownCause reason)
1401 {
1402 MachineClass *mc;
1403
1404 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1405
1406 cpu_synchronize_all_states();
1407
1408 if (mc && mc->reset) {
1409 mc->reset(current_machine);
1410 } else {
1411 qemu_devices_reset();
1412 }
1413 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1414 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1415 }
1416 cpu_synchronize_all_post_reset();
1417 }
1418
1419 /*
1420 * Wake the VM after suspend.
1421 */
1422 static void qemu_system_wakeup(void)
1423 {
1424 MachineClass *mc;
1425
1426 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1427
1428 if (mc && mc->wakeup) {
1429 mc->wakeup(current_machine);
1430 }
1431 }
1432
1433 void qemu_system_guest_panicked(GuestPanicInformation *info)
1434 {
1435 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1436
1437 if (current_cpu) {
1438 current_cpu->crash_occurred = true;
1439 }
1440 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1441 !!info, info);
1442 vm_stop(RUN_STATE_GUEST_PANICKED);
1443 if (!no_shutdown) {
1444 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1445 !!info, info);
1446 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1447 }
1448
1449 if (info) {
1450 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1451 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1452 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1453 info->u.hyper_v.arg1,
1454 info->u.hyper_v.arg2,
1455 info->u.hyper_v.arg3,
1456 info->u.hyper_v.arg4,
1457 info->u.hyper_v.arg5);
1458 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1459 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1460 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1461 info->u.s390.core,
1462 S390CrashReason_str(info->u.s390.reason),
1463 info->u.s390.psw_mask,
1464 info->u.s390.psw_addr);
1465 }
1466 qapi_free_GuestPanicInformation(info);
1467 }
1468 }
1469
1470 void qemu_system_guest_crashloaded(GuestPanicInformation *info)
1471 {
1472 qemu_log_mask(LOG_GUEST_ERROR, "Guest crash loaded");
1473
1474 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN,
1475 !!info, info);
1476
1477 if (info) {
1478 qapi_free_GuestPanicInformation(info);
1479 }
1480 }
1481
1482 void qemu_system_reset_request(ShutdownCause reason)
1483 {
1484 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1485 shutdown_requested = reason;
1486 } else {
1487 reset_requested = reason;
1488 }
1489 cpu_stop_current();
1490 qemu_notify_event();
1491 }
1492
1493 static void qemu_system_suspend(void)
1494 {
1495 pause_all_vcpus();
1496 notifier_list_notify(&suspend_notifiers, NULL);
1497 runstate_set(RUN_STATE_SUSPENDED);
1498 qapi_event_send_suspend();
1499 }
1500
1501 void qemu_system_suspend_request(void)
1502 {
1503 if (runstate_check(RUN_STATE_SUSPENDED)) {
1504 return;
1505 }
1506 suspend_requested = 1;
1507 cpu_stop_current();
1508 qemu_notify_event();
1509 }
1510
1511 void qemu_register_suspend_notifier(Notifier *notifier)
1512 {
1513 notifier_list_add(&suspend_notifiers, notifier);
1514 }
1515
1516 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1517 {
1518 trace_system_wakeup_request(reason);
1519
1520 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1521 error_setg(errp,
1522 "Unable to wake up: guest is not in suspended state");
1523 return;
1524 }
1525 if (!(wakeup_reason_mask & (1 << reason))) {
1526 return;
1527 }
1528 runstate_set(RUN_STATE_RUNNING);
1529 wakeup_reason = reason;
1530 qemu_notify_event();
1531 }
1532
1533 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1534 {
1535 if (enabled) {
1536 wakeup_reason_mask |= (1 << reason);
1537 } else {
1538 wakeup_reason_mask &= ~(1 << reason);
1539 }
1540 }
1541
1542 void qemu_register_wakeup_notifier(Notifier *notifier)
1543 {
1544 notifier_list_add(&wakeup_notifiers, notifier);
1545 }
1546
1547 void qemu_register_wakeup_support(void)
1548 {
1549 wakeup_suspend_enabled = true;
1550 }
1551
1552 bool qemu_wakeup_suspend_enabled(void)
1553 {
1554 return wakeup_suspend_enabled;
1555 }
1556
1557 void qemu_system_killed(int signal, pid_t pid)
1558 {
1559 shutdown_signal = signal;
1560 shutdown_pid = pid;
1561 no_shutdown = 0;
1562
1563 /* Cannot call qemu_system_shutdown_request directly because
1564 * we are in a signal handler.
1565 */
1566 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1567 qemu_notify_event();
1568 }
1569
1570 void qemu_system_shutdown_request(ShutdownCause reason)
1571 {
1572 trace_qemu_system_shutdown_request(reason);
1573 replay_shutdown_request(reason);
1574 shutdown_requested = reason;
1575 qemu_notify_event();
1576 }
1577
1578 static void qemu_system_powerdown(void)
1579 {
1580 qapi_event_send_powerdown();
1581 notifier_list_notify(&powerdown_notifiers, NULL);
1582 }
1583
1584 static void qemu_system_shutdown(ShutdownCause cause)
1585 {
1586 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1587 notifier_list_notify(&shutdown_notifiers, &cause);
1588 }
1589
1590 void qemu_system_powerdown_request(void)
1591 {
1592 trace_qemu_system_powerdown_request();
1593 powerdown_requested = 1;
1594 qemu_notify_event();
1595 }
1596
1597 void qemu_register_powerdown_notifier(Notifier *notifier)
1598 {
1599 notifier_list_add(&powerdown_notifiers, notifier);
1600 }
1601
1602 void qemu_register_shutdown_notifier(Notifier *notifier)
1603 {
1604 notifier_list_add(&shutdown_notifiers, notifier);
1605 }
1606
1607 void qemu_system_debug_request(void)
1608 {
1609 debug_requested = 1;
1610 qemu_notify_event();
1611 }
1612
1613 static bool main_loop_should_exit(void)
1614 {
1615 RunState r;
1616 ShutdownCause request;
1617
1618 if (preconfig_exit_requested) {
1619 if (runstate_check(RUN_STATE_PRECONFIG)) {
1620 runstate_set(RUN_STATE_PRELAUNCH);
1621 }
1622 preconfig_exit_requested = false;
1623 return true;
1624 }
1625 if (qemu_debug_requested()) {
1626 vm_stop(RUN_STATE_DEBUG);
1627 }
1628 if (qemu_suspend_requested()) {
1629 qemu_system_suspend();
1630 }
1631 request = qemu_shutdown_requested();
1632 if (request) {
1633 qemu_kill_report();
1634 qemu_system_shutdown(request);
1635 if (no_shutdown) {
1636 vm_stop(RUN_STATE_SHUTDOWN);
1637 } else {
1638 return true;
1639 }
1640 }
1641 request = qemu_reset_requested();
1642 if (request) {
1643 pause_all_vcpus();
1644 qemu_system_reset(request);
1645 resume_all_vcpus();
1646 /*
1647 * runstate can change in pause_all_vcpus()
1648 * as iothread mutex is unlocked
1649 */
1650 if (!runstate_check(RUN_STATE_RUNNING) &&
1651 !runstate_check(RUN_STATE_INMIGRATE) &&
1652 !runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1653 runstate_set(RUN_STATE_PRELAUNCH);
1654 }
1655 }
1656 if (qemu_wakeup_requested()) {
1657 pause_all_vcpus();
1658 qemu_system_wakeup();
1659 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1660 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1661 resume_all_vcpus();
1662 qapi_event_send_wakeup();
1663 }
1664 if (qemu_powerdown_requested()) {
1665 qemu_system_powerdown();
1666 }
1667 if (qemu_vmstop_requested(&r)) {
1668 vm_stop(r);
1669 }
1670 return false;
1671 }
1672
1673 static void main_loop(void)
1674 {
1675 #ifdef CONFIG_PROFILER
1676 int64_t ti;
1677 #endif
1678 while (!main_loop_should_exit()) {
1679 #ifdef CONFIG_PROFILER
1680 ti = profile_getclock();
1681 #endif
1682 main_loop_wait(false);
1683 #ifdef CONFIG_PROFILER
1684 dev_time += profile_getclock() - ti;
1685 #endif
1686 }
1687 }
1688
1689 static void version(void)
1690 {
1691 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1692 QEMU_COPYRIGHT "\n");
1693 }
1694
1695 static void help(int exitcode)
1696 {
1697 version();
1698 printf("usage: %s [options] [disk_image]\n\n"
1699 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1700 error_get_progname());
1701
1702 #define QEMU_OPTIONS_GENERATE_HELP
1703 #include "qemu-options-wrapper.h"
1704
1705 printf("\nDuring emulation, the following keys are useful:\n"
1706 "ctrl-alt-f toggle full screen\n"
1707 "ctrl-alt-n switch to virtual console 'n'\n"
1708 "ctrl-alt toggle mouse and keyboard grab\n"
1709 "\n"
1710 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1711 "\n"
1712 QEMU_HELP_BOTTOM "\n");
1713
1714 exit(exitcode);
1715 }
1716
1717 #define HAS_ARG 0x0001
1718
1719 typedef struct QEMUOption {
1720 const char *name;
1721 int flags;
1722 int index;
1723 uint32_t arch_mask;
1724 } QEMUOption;
1725
1726 static const QEMUOption qemu_options[] = {
1727 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1728 #define QEMU_OPTIONS_GENERATE_OPTIONS
1729 #include "qemu-options-wrapper.h"
1730 { NULL },
1731 };
1732
1733 typedef struct VGAInterfaceInfo {
1734 const char *opt_name; /* option name */
1735 const char *name; /* human-readable name */
1736 /* Class names indicating that support is available.
1737 * If no class is specified, the interface is always available */
1738 const char *class_names[2];
1739 } VGAInterfaceInfo;
1740
1741 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1742 [VGA_NONE] = {
1743 .opt_name = "none",
1744 .name = "no graphic card",
1745 },
1746 [VGA_STD] = {
1747 .opt_name = "std",
1748 .name = "standard VGA",
1749 .class_names = { "VGA", "isa-vga" },
1750 },
1751 [VGA_CIRRUS] = {
1752 .opt_name = "cirrus",
1753 .name = "Cirrus VGA",
1754 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1755 },
1756 [VGA_VMWARE] = {
1757 .opt_name = "vmware",
1758 .name = "VMWare SVGA",
1759 .class_names = { "vmware-svga" },
1760 },
1761 [VGA_VIRTIO] = {
1762 .opt_name = "virtio",
1763 .name = "Virtio VGA",
1764 .class_names = { "virtio-vga" },
1765 },
1766 [VGA_QXL] = {
1767 .opt_name = "qxl",
1768 .name = "QXL VGA",
1769 .class_names = { "qxl-vga" },
1770 },
1771 [VGA_TCX] = {
1772 .opt_name = "tcx",
1773 .name = "TCX framebuffer",
1774 .class_names = { "SUNW,tcx" },
1775 },
1776 [VGA_CG3] = {
1777 .opt_name = "cg3",
1778 .name = "CG3 framebuffer",
1779 .class_names = { "cgthree" },
1780 },
1781 [VGA_XENFB] = {
1782 .opt_name = "xenfb",
1783 .name = "Xen paravirtualized framebuffer",
1784 },
1785 };
1786
1787 static bool vga_interface_available(VGAInterfaceType t)
1788 {
1789 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1790
1791 assert(t < VGA_TYPE_MAX);
1792 return !ti->class_names[0] ||
1793 object_class_by_name(ti->class_names[0]) ||
1794 object_class_by_name(ti->class_names[1]);
1795 }
1796
1797 static const char *
1798 get_default_vga_model(const MachineClass *machine_class)
1799 {
1800 if (machine_class->default_display) {
1801 return machine_class->default_display;
1802 } else if (vga_interface_available(VGA_CIRRUS)) {
1803 return "cirrus";
1804 } else if (vga_interface_available(VGA_STD)) {
1805 return "std";
1806 }
1807
1808 return NULL;
1809 }
1810
1811 static void select_vgahw(const MachineClass *machine_class, const char *p)
1812 {
1813 const char *opts;
1814 int t;
1815
1816 if (g_str_equal(p, "help")) {
1817 const char *def = get_default_vga_model(machine_class);
1818
1819 for (t = 0; t < VGA_TYPE_MAX; t++) {
1820 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1821
1822 if (vga_interface_available(t) && ti->opt_name) {
1823 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1824 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1825 }
1826 }
1827 exit(0);
1828 }
1829
1830 assert(vga_interface_type == VGA_NONE);
1831 for (t = 0; t < VGA_TYPE_MAX; t++) {
1832 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1833 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1834 if (!vga_interface_available(t)) {
1835 error_report("%s not available", ti->name);
1836 exit(1);
1837 }
1838 vga_interface_type = t;
1839 break;
1840 }
1841 }
1842 if (t == VGA_TYPE_MAX) {
1843 invalid_vga:
1844 error_report("unknown vga type: %s", p);
1845 exit(1);
1846 }
1847 while (*opts) {
1848 const char *nextopt;
1849
1850 if (strstart(opts, ",retrace=", &nextopt)) {
1851 opts = nextopt;
1852 if (strstart(opts, "dumb", &nextopt))
1853 vga_retrace_method = VGA_RETRACE_DUMB;
1854 else if (strstart(opts, "precise", &nextopt))
1855 vga_retrace_method = VGA_RETRACE_PRECISE;
1856 else goto invalid_vga;
1857 } else goto invalid_vga;
1858 opts = nextopt;
1859 }
1860 }
1861
1862 static void parse_display_qapi(const char *optarg)
1863 {
1864 DisplayOptions *opts;
1865 Visitor *v;
1866
1867 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1868
1869 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1870 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1871
1872 qapi_free_DisplayOptions(opts);
1873 visit_free(v);
1874 }
1875
1876 DisplayOptions *qmp_query_display_options(Error **errp)
1877 {
1878 return QAPI_CLONE(DisplayOptions, &dpy);
1879 }
1880
1881 static void parse_display(const char *p)
1882 {
1883 const char *opts;
1884
1885 if (is_help_option(p)) {
1886 qemu_display_help();
1887 exit(0);
1888 }
1889
1890 if (strstart(p, "sdl", &opts)) {
1891 /*
1892 * sdl DisplayType needs hand-crafted parser instead of
1893 * parse_display_qapi() due to some options not in
1894 * DisplayOptions, specifically:
1895 * - frame
1896 * Already deprecated.
1897 * - ctrl_grab + alt_grab
1898 * Not clear yet what happens to them long-term. Should
1899 * replaced by something better or deprecated and dropped.
1900 */
1901 dpy.type = DISPLAY_TYPE_SDL;
1902 while (*opts) {
1903 const char *nextopt;
1904
1905 if (strstart(opts, ",alt_grab=", &nextopt)) {
1906 opts = nextopt;
1907 if (strstart(opts, "on", &nextopt)) {
1908 alt_grab = 1;
1909 } else if (strstart(opts, "off", &nextopt)) {
1910 alt_grab = 0;
1911 } else {
1912 goto invalid_sdl_args;
1913 }
1914 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1915 opts = nextopt;
1916 if (strstart(opts, "on", &nextopt)) {
1917 ctrl_grab = 1;
1918 } else if (strstart(opts, "off", &nextopt)) {
1919 ctrl_grab = 0;
1920 } else {
1921 goto invalid_sdl_args;
1922 }
1923 } else if (strstart(opts, ",window_close=", &nextopt)) {
1924 opts = nextopt;
1925 dpy.has_window_close = true;
1926 if (strstart(opts, "on", &nextopt)) {
1927 dpy.window_close = true;
1928 } else if (strstart(opts, "off", &nextopt)) {
1929 dpy.window_close = false;
1930 } else {
1931 goto invalid_sdl_args;
1932 }
1933 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1934 opts = nextopt;
1935 dpy.has_show_cursor = true;
1936 if (strstart(opts, "on", &nextopt)) {
1937 dpy.show_cursor = true;
1938 } else if (strstart(opts, "off", &nextopt)) {
1939 dpy.show_cursor = false;
1940 } else {
1941 goto invalid_sdl_args;
1942 }
1943 } else if (strstart(opts, ",gl=", &nextopt)) {
1944 opts = nextopt;
1945 dpy.has_gl = true;
1946 if (strstart(opts, "on", &nextopt)) {
1947 dpy.gl = DISPLAYGL_MODE_ON;
1948 } else if (strstart(opts, "core", &nextopt)) {
1949 dpy.gl = DISPLAYGL_MODE_CORE;
1950 } else if (strstart(opts, "es", &nextopt)) {
1951 dpy.gl = DISPLAYGL_MODE_ES;
1952 } else if (strstart(opts, "off", &nextopt)) {
1953 dpy.gl = DISPLAYGL_MODE_OFF;
1954 } else {
1955 goto invalid_sdl_args;
1956 }
1957 } else {
1958 invalid_sdl_args:
1959 error_report("invalid SDL option string");
1960 exit(1);
1961 }
1962 opts = nextopt;
1963 }
1964 } else if (strstart(p, "vnc", &opts)) {
1965 /*
1966 * vnc isn't a (local) DisplayType but a protocol for remote
1967 * display access.
1968 */
1969 if (*opts == '=') {
1970 vnc_parse(opts + 1, &error_fatal);
1971 } else {
1972 error_report("VNC requires a display argument vnc=<display>");
1973 exit(1);
1974 }
1975 } else {
1976 parse_display_qapi(p);
1977 }
1978 }
1979
1980 char *qemu_find_file(int type, const char *name)
1981 {
1982 int i;
1983 const char *subdir;
1984 char *buf;
1985
1986 /* Try the name as a straight path first */
1987 if (access(name, R_OK) == 0) {
1988 trace_load_file(name, name);
1989 return g_strdup(name);
1990 }
1991
1992 switch (type) {
1993 case QEMU_FILE_TYPE_BIOS:
1994 subdir = "";
1995 break;
1996 case QEMU_FILE_TYPE_KEYMAP:
1997 subdir = "keymaps/";
1998 break;
1999 default:
2000 abort();
2001 }
2002
2003 for (i = 0; i < data_dir_idx; i++) {
2004 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2005 if (access(buf, R_OK) == 0) {
2006 trace_load_file(name, buf);
2007 return buf;
2008 }
2009 g_free(buf);
2010 }
2011 return NULL;
2012 }
2013
2014 static void qemu_add_data_dir(const char *path)
2015 {
2016 int i;
2017
2018 if (path == NULL) {
2019 return;
2020 }
2021 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2022 return;
2023 }
2024 for (i = 0; i < data_dir_idx; i++) {
2025 if (strcmp(data_dir[i], path) == 0) {
2026 return; /* duplicate */
2027 }
2028 }
2029 data_dir[data_dir_idx++] = g_strdup(path);
2030 }
2031
2032 static inline bool nonempty_str(const char *str)
2033 {
2034 return str && *str;
2035 }
2036
2037 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2038 {
2039 gchar *buf;
2040 size_t size;
2041 const char *name, *file, *str;
2042 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2043
2044 if (fw_cfg == NULL) {
2045 error_setg(errp, "fw_cfg device not available");
2046 return -1;
2047 }
2048 name = qemu_opt_get(opts, "name");
2049 file = qemu_opt_get(opts, "file");
2050 str = qemu_opt_get(opts, "string");
2051
2052 /* we need name and either a file or the content string */
2053 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2054 error_setg(errp, "invalid argument(s)");
2055 return -1;
2056 }
2057 if (nonempty_str(file) && nonempty_str(str)) {
2058 error_setg(errp, "file and string are mutually exclusive");
2059 return -1;
2060 }
2061 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2062 error_setg(errp, "name too long (max. %d char)",
2063 FW_CFG_MAX_FILE_PATH - 1);
2064 return -1;
2065 }
2066 if (strncmp(name, "opt/", 4) != 0) {
2067 warn_report("externally provided fw_cfg item names "
2068 "should be prefixed with \"opt/\"");
2069 }
2070 if (nonempty_str(str)) {
2071 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2072 buf = g_memdup(str, size);
2073 } else {
2074 GError *err = NULL;
2075 if (!g_file_get_contents(file, &buf, &size, &err)) {
2076 error_setg(errp, "can't load %s: %s", file, err->message);
2077 g_error_free(err);
2078 return -1;
2079 }
2080 }
2081 /* For legacy, keep user files in a specific global order. */
2082 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2083 fw_cfg_add_file(fw_cfg, name, buf, size);
2084 fw_cfg_reset_order_override(fw_cfg);
2085 return 0;
2086 }
2087
2088 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2089 {
2090 return qdev_device_help(opts);
2091 }
2092
2093 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2094 {
2095 DeviceState *dev;
2096
2097 dev = qdev_device_add(opts, errp);
2098 if (!dev && *errp) {
2099 error_report_err(*errp);
2100 return -1;
2101 } else if (dev) {
2102 object_unref(OBJECT(dev));
2103 }
2104 return 0;
2105 }
2106
2107 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2108 {
2109 Error *local_err = NULL;
2110
2111 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2112 if (local_err) {
2113 error_propagate(errp, local_err);
2114 return -1;
2115 }
2116 exit(0);
2117 }
2118 return 0;
2119 }
2120
2121 #ifdef CONFIG_VIRTFS
2122 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2123 {
2124 return qemu_fsdev_add(opts, errp);
2125 }
2126 #endif
2127
2128 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2129 {
2130 Chardev *chr;
2131 bool qmp;
2132 bool pretty = false;
2133 const char *chardev;
2134 const char *mode;
2135
2136 mode = qemu_opt_get(opts, "mode");
2137 if (mode == NULL) {
2138 mode = "readline";
2139 }
2140 if (strcmp(mode, "readline") == 0) {
2141 qmp = false;
2142 } else if (strcmp(mode, "control") == 0) {
2143 qmp = true;
2144 } else {
2145 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2146 return -1;
2147 }
2148
2149 if (!qmp && qemu_opt_get(opts, "pretty")) {
2150 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2151 "and will be removed in future versions");
2152 }
2153 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2154 pretty = true;
2155 }
2156
2157 chardev = qemu_opt_get(opts, "chardev");
2158 if (!chardev) {
2159 error_report("chardev is required");
2160 exit(1);
2161 }
2162 chr = qemu_chr_find(chardev);
2163 if (chr == NULL) {
2164 error_setg(errp, "chardev \"%s\" not found", chardev);
2165 return -1;
2166 }
2167
2168 if (qmp) {
2169 monitor_init_qmp(chr, pretty);
2170 } else {
2171 monitor_init_hmp(chr, true);
2172 }
2173 return 0;
2174 }
2175
2176 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2177 {
2178 static int monitor_device_index = 0;
2179 QemuOpts *opts;
2180 const char *p;
2181 char label[32];
2182
2183 if (strstart(optarg, "chardev:", &p)) {
2184 snprintf(label, sizeof(label), "%s", p);
2185 } else {
2186 snprintf(label, sizeof(label), "compat_monitor%d",
2187 monitor_device_index);
2188 opts = qemu_chr_parse_compat(label, optarg, true);
2189 if (!opts) {
2190 error_report("parse error: %s", optarg);
2191 exit(1);
2192 }
2193 }
2194
2195 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2196 qemu_opt_set(opts, "mode", mode, &error_abort);
2197 qemu_opt_set(opts, "chardev", label, &error_abort);
2198 if (!strcmp(mode, "control")) {
2199 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2200 } else {
2201 assert(pretty == false);
2202 }
2203 monitor_device_index++;
2204 }
2205
2206 struct device_config {
2207 enum {
2208 DEV_USB, /* -usbdevice */
2209 DEV_SERIAL, /* -serial */
2210 DEV_PARALLEL, /* -parallel */
2211 DEV_DEBUGCON, /* -debugcon */
2212 DEV_GDB, /* -gdb, -s */
2213 DEV_SCLP, /* s390 sclp */
2214 } type;
2215 const char *cmdline;
2216 Location loc;
2217 QTAILQ_ENTRY(device_config) next;
2218 };
2219
2220 static QTAILQ_HEAD(, device_config) device_configs =
2221 QTAILQ_HEAD_INITIALIZER(device_configs);
2222
2223 static void add_device_config(int type, const char *cmdline)
2224 {
2225 struct device_config *conf;
2226
2227 conf = g_malloc0(sizeof(*conf));
2228 conf->type = type;
2229 conf->cmdline = cmdline;
2230 loc_save(&conf->loc);
2231 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2232 }
2233
2234 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2235 {
2236 struct device_config *conf;
2237 int rc;
2238
2239 QTAILQ_FOREACH(conf, &device_configs, next) {
2240 if (conf->type != type)
2241 continue;
2242 loc_push_restore(&conf->loc);
2243 rc = func(conf->cmdline);
2244 loc_pop(&conf->loc);
2245 if (rc) {
2246 return rc;
2247 }
2248 }
2249 return 0;
2250 }
2251
2252 static int serial_parse(const char *devname)
2253 {
2254 int index = num_serial_hds;
2255 char label[32];
2256
2257 if (strcmp(devname, "none") == 0)
2258 return 0;
2259 snprintf(label, sizeof(label), "serial%d", index);
2260 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2261
2262 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2263 if (!serial_hds[index]) {
2264 error_report("could not connect serial device"
2265 " to character backend '%s'", devname);
2266 return -1;
2267 }
2268 num_serial_hds++;
2269 return 0;
2270 }
2271
2272 Chardev *serial_hd(int i)
2273 {
2274 assert(i >= 0);
2275 if (i < num_serial_hds) {
2276 return serial_hds[i];
2277 }
2278 return NULL;
2279 }
2280
2281 int serial_max_hds(void)
2282 {
2283 return num_serial_hds;
2284 }
2285
2286 static int parallel_parse(const char *devname)
2287 {
2288 static int index = 0;
2289 char label[32];
2290
2291 if (strcmp(devname, "none") == 0)
2292 return 0;
2293 if (index == MAX_PARALLEL_PORTS) {
2294 error_report("too many parallel ports");
2295 exit(1);
2296 }
2297 snprintf(label, sizeof(label), "parallel%d", index);
2298 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2299 if (!parallel_hds[index]) {
2300 error_report("could not connect parallel device"
2301 " to character backend '%s'", devname);
2302 return -1;
2303 }
2304 index++;
2305 return 0;
2306 }
2307
2308 static int debugcon_parse(const char *devname)
2309 {
2310 QemuOpts *opts;
2311
2312 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2313 error_report("invalid character backend '%s'", devname);
2314 exit(1);
2315 }
2316 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2317 if (!opts) {
2318 error_report("already have a debugcon device");
2319 exit(1);
2320 }
2321 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2322 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2323 return 0;
2324 }
2325
2326 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2327 {
2328 const MachineClass *mc1 = a, *mc2 = b;
2329 int res;
2330
2331 if (mc1->family == NULL) {
2332 if (mc2->family == NULL) {
2333 /* Compare standalone machine types against each other; they sort
2334 * in increasing order.
2335 */
2336 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2337 object_class_get_name(OBJECT_CLASS(mc2)));
2338 }
2339
2340 /* Standalone machine types sort after families. */
2341 return 1;
2342 }
2343
2344 if (mc2->family == NULL) {
2345 /* Families sort before standalone machine types. */
2346 return -1;
2347 }
2348
2349 /* Families sort between each other alphabetically increasingly. */
2350 res = strcmp(mc1->family, mc2->family);
2351 if (res != 0) {
2352 return res;
2353 }
2354
2355 /* Within the same family, machine types sort in decreasing order. */
2356 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2357 object_class_get_name(OBJECT_CLASS(mc1)));
2358 }
2359
2360 static MachineClass *machine_parse(const char *name, GSList *machines)
2361 {
2362 MachineClass *mc;
2363 GSList *el;
2364
2365 if (is_help_option(name)) {
2366 printf("Supported machines are:\n");
2367 machines = g_slist_sort(machines, machine_class_cmp);
2368 for (el = machines; el; el = el->next) {
2369 MachineClass *mc = el->data;
2370 if (mc->alias) {
2371 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2372 }
2373 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2374 mc->is_default ? " (default)" : "",
2375 mc->deprecation_reason ? " (deprecated)" : "");
2376 }
2377 exit(0);
2378 }
2379
2380 mc = find_machine(name, machines);
2381 if (!mc) {
2382 error_report("unsupported machine type");
2383 error_printf("Use -machine help to list supported machines\n");
2384 exit(1);
2385 }
2386 return mc;
2387 }
2388
2389 void qemu_add_exit_notifier(Notifier *notify)
2390 {
2391 notifier_list_add(&exit_notifiers, notify);
2392 }
2393
2394 void qemu_remove_exit_notifier(Notifier *notify)
2395 {
2396 notifier_remove(notify);
2397 }
2398
2399 static void qemu_run_exit_notifiers(void)
2400 {
2401 notifier_list_notify(&exit_notifiers, NULL);
2402 }
2403
2404 static const char *pid_file;
2405 static Notifier qemu_unlink_pidfile_notifier;
2406
2407 static void qemu_unlink_pidfile(Notifier *n, void *data)
2408 {
2409 if (pid_file) {
2410 unlink(pid_file);
2411 }
2412 }
2413
2414 bool machine_init_done;
2415
2416 void qemu_add_machine_init_done_notifier(Notifier *notify)
2417 {
2418 notifier_list_add(&machine_init_done_notifiers, notify);
2419 if (machine_init_done) {
2420 notify->notify(notify, NULL);
2421 }
2422 }
2423
2424 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2425 {
2426 notifier_remove(notify);
2427 }
2428
2429 static void qemu_run_machine_init_done_notifiers(void)
2430 {
2431 machine_init_done = true;
2432 notifier_list_notify(&machine_init_done_notifiers, NULL);
2433 }
2434
2435 static const QEMUOption *lookup_opt(int argc, char **argv,
2436 const char **poptarg, int *poptind)
2437 {
2438 const QEMUOption *popt;
2439 int optind = *poptind;
2440 char *r = argv[optind];
2441 const char *optarg;
2442
2443 loc_set_cmdline(argv, optind, 1);
2444 optind++;
2445 /* Treat --foo the same as -foo. */
2446 if (r[1] == '-')
2447 r++;
2448 popt = qemu_options;
2449 for(;;) {
2450 if (!popt->name) {
2451 error_report("invalid option");
2452 exit(1);
2453 }
2454 if (!strcmp(popt->name, r + 1))
2455 break;
2456 popt++;
2457 }
2458 if (popt->flags & HAS_ARG) {
2459 if (optind >= argc) {
2460 error_report("requires an argument");
2461 exit(1);
2462 }
2463 optarg = argv[optind++];
2464 loc_set_cmdline(argv, optind - 2, 2);
2465 } else {
2466 optarg = NULL;
2467 }
2468
2469 *poptarg = optarg;
2470 *poptind = optind;
2471
2472 return popt;
2473 }
2474
2475 static MachineClass *select_machine(void)
2476 {
2477 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2478 MachineClass *machine_class = find_default_machine(machines);
2479 const char *optarg;
2480 QemuOpts *opts;
2481 Location loc;
2482
2483 loc_push_none(&loc);
2484
2485 opts = qemu_get_machine_opts();
2486 qemu_opts_loc_restore(opts);
2487
2488 optarg = qemu_opt_get(opts, "type");
2489 if (optarg) {
2490 machine_class = machine_parse(optarg, machines);
2491 }
2492
2493 if (!machine_class) {
2494 error_report("No machine specified, and there is no default");
2495 error_printf("Use -machine help to list supported machines\n");
2496 exit(1);
2497 }
2498
2499 loc_pop(&loc);
2500 g_slist_free(machines);
2501 return machine_class;
2502 }
2503
2504 static int object_parse_property_opt(Object *obj,
2505 const char *name, const char *value,
2506 const char *skip, Error **errp)
2507 {
2508 Error *local_err = NULL;
2509
2510 if (g_str_equal(name, skip)) {
2511 return 0;
2512 }
2513
2514 object_property_parse(obj, value, name, &local_err);
2515
2516 if (local_err) {
2517 error_propagate(errp, local_err);
2518 return -1;
2519 }
2520
2521 return 0;
2522 }
2523
2524 static int machine_set_property(void *opaque,
2525 const char *name, const char *value,
2526 Error **errp)
2527 {
2528 g_autofree char *qom_name = g_strdup(name);
2529 char *p;
2530
2531 for (p = qom_name; *p; p++) {
2532 if (*p == '_') {
2533 *p = '-';
2534 }
2535 }
2536
2537 /* Legacy options do not correspond to MachineState properties. */
2538 if (g_str_equal(qom_name, "accel")) {
2539 return 0;
2540 }
2541 if (g_str_equal(qom_name, "igd-passthru")) {
2542 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2543 return 0;
2544 }
2545 if (g_str_equal(qom_name, "kvm-shadow-mem") ||
2546 g_str_equal(qom_name, "kernel-irqchip")) {
2547 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2548 return 0;
2549 }
2550
2551 return object_parse_property_opt(opaque, name, value, "type", errp);
2552 }
2553
2554 /*
2555 * Initial object creation happens before all other
2556 * QEMU data types are created. The majority of objects
2557 * can be created at this point. The rng-egd object
2558 * cannot be created here, as it depends on the chardev
2559 * already existing.
2560 */
2561 static bool object_create_initial(const char *type, QemuOpts *opts)
2562 {
2563 if (user_creatable_print_help(type, opts)) {
2564 exit(0);
2565 }
2566
2567 /*
2568 * Objects should not be made "delayed" without a reason. If you
2569 * add one, state the reason in a comment!
2570 */
2571
2572 /* Reason: rng-egd property "chardev" */
2573 if (g_str_equal(type, "rng-egd")) {
2574 return false;
2575 }
2576
2577 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2578 /* Reason: cryptodev-vhost-user property "chardev" */
2579 if (g_str_equal(type, "cryptodev-vhost-user")) {
2580 return false;
2581 }
2582 #endif
2583
2584 /*
2585 * Reason: filter-* property "netdev" etc.
2586 */
2587 if (g_str_equal(type, "filter-buffer") ||
2588 g_str_equal(type, "filter-dump") ||
2589 g_str_equal(type, "filter-mirror") ||
2590 g_str_equal(type, "filter-redirector") ||
2591 g_str_equal(type, "colo-compare") ||
2592 g_str_equal(type, "filter-rewriter") ||
2593 g_str_equal(type, "filter-replay")) {
2594 return false;
2595 }
2596
2597 /* Memory allocation by backends needs to be done
2598 * after configure_accelerator() (due to the tcg_enabled()
2599 * checks at memory_region_init_*()).
2600 *
2601 * Also, allocation of large amounts of memory may delay
2602 * chardev initialization for too long, and trigger timeouts
2603 * on software that waits for a monitor socket to be created
2604 * (e.g. libvirt).
2605 */
2606 if (g_str_has_prefix(type, "memory-backend-")) {
2607 return false;
2608 }
2609
2610 return true;
2611 }
2612
2613
2614 /*
2615 * The remainder of object creation happens after the
2616 * creation of chardev, fsdev, net clients and device data types.
2617 */
2618 static bool object_create_delayed(const char *type, QemuOpts *opts)
2619 {
2620 return !object_create_initial(type, opts);
2621 }
2622
2623
2624 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2625 MachineClass *mc)
2626 {
2627 uint64_t sz;
2628 const char *mem_str;
2629 const ram_addr_t default_ram_size = mc->default_ram_size;
2630 QemuOpts *opts = qemu_find_opts_singleton("memory");
2631 Location loc;
2632
2633 loc_push_none(&loc);
2634 qemu_opts_loc_restore(opts);
2635
2636 sz = 0;
2637 mem_str = qemu_opt_get(opts, "size");
2638 if (mem_str) {
2639 if (!*mem_str) {
2640 error_report("missing 'size' option value");
2641 exit(EXIT_FAILURE);
2642 }
2643
2644 sz = qemu_opt_get_size(opts, "size", ram_size);
2645
2646 /* Fix up legacy suffix-less format */
2647 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2648 uint64_t overflow_check = sz;
2649
2650 sz *= MiB;
2651 if (sz / MiB != overflow_check) {
2652 error_report("too large 'size' option value");
2653 exit(EXIT_FAILURE);
2654 }
2655 }
2656 }
2657
2658 /* backward compatibility behaviour for case "-m 0" */
2659 if (sz == 0) {
2660 sz = default_ram_size;
2661 }
2662
2663 sz = QEMU_ALIGN_UP(sz, 8192);
2664 ram_size = sz;
2665 if (ram_size != sz) {
2666 error_report("ram size too large");
2667 exit(EXIT_FAILURE);
2668 }
2669
2670 /* store value for the future use */
2671 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2672 *maxram_size = ram_size;
2673
2674 if (qemu_opt_get(opts, "maxmem")) {
2675 uint64_t slots;
2676
2677 sz = qemu_opt_get_size(opts, "maxmem", 0);
2678 slots = qemu_opt_get_number(opts, "slots", 0);
2679 if (sz < ram_size) {
2680 error_report("invalid value of -m option maxmem: "
2681 "maximum memory size (0x%" PRIx64 ") must be at least "
2682 "the initial memory size (0x" RAM_ADDR_FMT ")",
2683 sz, ram_size);
2684 exit(EXIT_FAILURE);
2685 } else if (slots && sz == ram_size) {
2686 error_report("invalid value of -m option maxmem: "
2687 "memory slots were specified but maximum memory size "
2688 "(0x%" PRIx64 ") is equal to the initial memory size "
2689 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2690 exit(EXIT_FAILURE);
2691 }
2692
2693 *maxram_size = sz;
2694 *ram_slots = slots;
2695 } else if (qemu_opt_get(opts, "slots")) {
2696 error_report("invalid -m option value: missing 'maxmem' option");
2697 exit(EXIT_FAILURE);
2698 }
2699
2700 loc_pop(&loc);
2701 }
2702
2703 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2704 {
2705 GlobalProperty *g;
2706
2707 g = g_malloc0(sizeof(*g));
2708 g->driver = qemu_opt_get(opts, "driver");
2709 g->property = qemu_opt_get(opts, "property");
2710 g->value = qemu_opt_get(opts, "value");
2711 qdev_prop_register_global(g);
2712 return 0;
2713 }
2714
2715 static int qemu_read_default_config_file(void)
2716 {
2717 int ret;
2718
2719 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2720 if (ret < 0 && ret != -ENOENT) {
2721 return ret;
2722 }
2723
2724 return 0;
2725 }
2726
2727 static void user_register_global_props(void)
2728 {
2729 qemu_opts_foreach(qemu_find_opts("global"),
2730 global_init_func, NULL, NULL);
2731 }
2732
2733 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2734 {
2735 configure_icount(opts, errp);
2736 return 0;
2737 }
2738
2739 static int accelerator_set_property(void *opaque,
2740 const char *name, const char *value,
2741 Error **errp)
2742 {
2743 return object_parse_property_opt(opaque, name, value, "accel", errp);
2744 }
2745
2746 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2747 {
2748 bool *p_init_failed = opaque;
2749 const char *acc = qemu_opt_get(opts, "accel");
2750 AccelClass *ac = accel_find(acc);
2751 AccelState *accel;
2752 int ret;
2753
2754 if (!ac) {
2755 *p_init_failed = true;
2756 error_report("invalid accelerator %s", acc);
2757 return 0;
2758 }
2759 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2760 object_apply_compat_props(OBJECT(accel));
2761 qemu_opt_foreach(opts, accelerator_set_property,
2762 accel,
2763 &error_fatal);
2764
2765 ret = accel_init_machine(accel, current_machine);
2766 if (ret < 0) {
2767 *p_init_failed = true;
2768 error_report("failed to initialize %s: %s",
2769 acc, strerror(-ret));
2770 return 0;
2771 }
2772
2773 return 1;
2774 }
2775
2776 static void configure_accelerators(const char *progname)
2777 {
2778 const char *accel;
2779 bool init_failed = false;
2780
2781 qemu_opts_foreach(qemu_find_opts("icount"),
2782 do_configure_icount, NULL, &error_fatal);
2783
2784 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2785 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2786 char **accel_list, **tmp;
2787
2788 if (accel == NULL) {
2789 /* Select the default accelerator */
2790 bool have_tcg = accel_find("tcg");
2791 bool have_kvm = accel_find("kvm");
2792
2793 if (have_tcg && have_kvm) {
2794 if (g_str_has_suffix(progname, "kvm")) {
2795 /* If the program name ends with "kvm", we prefer KVM */
2796 accel = "kvm:tcg";
2797 } else {
2798 accel = "tcg:kvm";
2799 }
2800 } else if (have_kvm) {
2801 accel = "kvm";
2802 } else if (have_tcg) {
2803 accel = "tcg";
2804 } else {
2805 error_report("No accelerator selected and"
2806 " no default accelerator available");
2807 exit(1);
2808 }
2809 }
2810 accel_list = g_strsplit(accel, ":", 0);
2811
2812 for (tmp = accel_list; *tmp; tmp++) {
2813 /*
2814 * Filter invalid accelerators here, to prevent obscenities
2815 * such as "-machine accel=tcg,,thread=single".
2816 */
2817 if (accel_find(*tmp)) {
2818 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2819 } else {
2820 init_failed = true;
2821 error_report("invalid accelerator %s", *tmp);
2822 }
2823 }
2824 g_strfreev(accel_list);
2825 } else {
2826 if (accel != NULL) {
2827 error_report("The -accel and \"-machine accel=\" options are incompatible");
2828 exit(1);
2829 }
2830 }
2831
2832 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2833 do_configure_accelerator, &init_failed, &error_fatal)) {
2834 if (!init_failed) {
2835 error_report("no accelerator found");
2836 }
2837 exit(1);
2838 }
2839
2840 if (init_failed) {
2841 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2842 error_report("falling back to %s", ac->name);
2843 }
2844
2845 if (use_icount && !(tcg_enabled() || qtest_enabled())) {
2846 error_report("-icount is not allowed with hardware virtualization");
2847 exit(1);
2848 }
2849 }
2850
2851 int main(int argc, char **argv, char **envp)
2852 {
2853 int i;
2854 int snapshot, linux_boot;
2855 const char *initrd_filename;
2856 const char *kernel_filename, *kernel_cmdline;
2857 const char *boot_order = NULL;
2858 const char *boot_once = NULL;
2859 DisplayState *ds;
2860 QemuOpts *opts, *machine_opts;
2861 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2862 QemuOptsList *olist;
2863 int optind;
2864 const char *optarg;
2865 const char *loadvm = NULL;
2866 MachineClass *machine_class;
2867 const char *cpu_option;
2868 const char *vga_model = NULL;
2869 const char *qtest_chrdev = NULL;
2870 const char *qtest_log = NULL;
2871 const char *incoming = NULL;
2872 bool userconfig = true;
2873 bool nographic = false;
2874 int display_remote = 0;
2875 const char *log_mask = NULL;
2876 const char *log_file = NULL;
2877 char *trace_file = NULL;
2878 ram_addr_t maxram_size;
2879 uint64_t ram_slots = 0;
2880 FILE *vmstate_dump_file = NULL;
2881 Error *main_loop_err = NULL;
2882 Error *err = NULL;
2883 bool list_data_dirs = false;
2884 char *dir, **dirs;
2885 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2886 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2887
2888 os_set_line_buffering();
2889
2890 error_init(argv[0]);
2891 module_call_init(MODULE_INIT_TRACE);
2892
2893 qemu_init_cpu_list();
2894 qemu_init_cpu_loop();
2895
2896 qemu_mutex_lock_iothread();
2897
2898 atexit(qemu_run_exit_notifiers);
2899 qemu_init_exec_dir(argv[0]);
2900
2901 module_call_init(MODULE_INIT_QOM);
2902
2903 qemu_add_opts(&qemu_drive_opts);
2904 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2905 qemu_add_drive_opts(&qemu_common_drive_opts);
2906 qemu_add_drive_opts(&qemu_drive_opts);
2907 qemu_add_drive_opts(&bdrv_runtime_opts);
2908 qemu_add_opts(&qemu_chardev_opts);
2909 qemu_add_opts(&qemu_device_opts);
2910 qemu_add_opts(&qemu_netdev_opts);
2911 qemu_add_opts(&qemu_nic_opts);
2912 qemu_add_opts(&qemu_net_opts);
2913 qemu_add_opts(&qemu_rtc_opts);
2914 qemu_add_opts(&qemu_global_opts);
2915 qemu_add_opts(&qemu_mon_opts);
2916 qemu_add_opts(&qemu_trace_opts);
2917 qemu_plugin_add_opts();
2918 qemu_add_opts(&qemu_option_rom_opts);
2919 qemu_add_opts(&qemu_machine_opts);
2920 qemu_add_opts(&qemu_accel_opts);
2921 qemu_add_opts(&qemu_mem_opts);
2922 qemu_add_opts(&qemu_smp_opts);
2923 qemu_add_opts(&qemu_boot_opts);
2924 qemu_add_opts(&qemu_add_fd_opts);
2925 qemu_add_opts(&qemu_object_opts);
2926 qemu_add_opts(&qemu_tpmdev_opts);
2927 qemu_add_opts(&qemu_realtime_opts);
2928 qemu_add_opts(&qemu_overcommit_opts);
2929 qemu_add_opts(&qemu_msg_opts);
2930 qemu_add_opts(&qemu_name_opts);
2931 qemu_add_opts(&qemu_numa_opts);
2932 qemu_add_opts(&qemu_icount_opts);
2933 qemu_add_opts(&qemu_semihosting_config_opts);
2934 qemu_add_opts(&qemu_fw_cfg_opts);
2935 module_call_init(MODULE_INIT_OPTS);
2936
2937 runstate_init();
2938 precopy_infrastructure_init();
2939 postcopy_infrastructure_init();
2940 monitor_init_globals();
2941
2942 if (qcrypto_init(&err) < 0) {
2943 error_reportf_err(err, "cannot initialize crypto: ");
2944 exit(1);
2945 }
2946
2947 QTAILQ_INIT(&vm_change_state_head);
2948 os_setup_early_signal_handling();
2949
2950 cpu_option = NULL;
2951 snapshot = 0;
2952
2953 nb_nics = 0;
2954
2955 bdrv_init_with_whitelist();
2956
2957 autostart = 1;
2958
2959 /* first pass of option parsing */
2960 optind = 1;
2961 while (optind < argc) {
2962 if (argv[optind][0] != '-') {
2963 /* disk image */
2964 optind++;
2965 } else {
2966 const QEMUOption *popt;
2967
2968 popt = lookup_opt(argc, argv, &optarg, &optind);
2969 switch (popt->index) {
2970 case QEMU_OPTION_nouserconfig:
2971 userconfig = false;
2972 break;
2973 }
2974 }
2975 }
2976
2977 if (userconfig) {
2978 if (qemu_read_default_config_file() < 0) {
2979 exit(1);
2980 }
2981 }
2982
2983 /* second pass of option parsing */
2984 optind = 1;
2985 for(;;) {
2986 if (optind >= argc)
2987 break;
2988 if (argv[optind][0] != '-') {
2989 loc_set_cmdline(argv, optind, 1);
2990 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2991 } else {
2992 const QEMUOption *popt;
2993
2994 popt = lookup_opt(argc, argv, &optarg, &optind);
2995 if (!(popt->arch_mask & arch_type)) {
2996 error_report("Option not supported for this target");
2997 exit(1);
2998 }
2999 switch(popt->index) {
3000 case QEMU_OPTION_cpu:
3001 /* hw initialization will check this */
3002 cpu_option = optarg;
3003 break;
3004 case QEMU_OPTION_hda:
3005 case QEMU_OPTION_hdb:
3006 case QEMU_OPTION_hdc:
3007 case QEMU_OPTION_hdd:
3008 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3009 HD_OPTS);
3010 break;
3011 case QEMU_OPTION_blockdev:
3012 {
3013 Visitor *v;
3014 BlockdevOptionsQueueEntry *bdo;
3015
3016 v = qobject_input_visitor_new_str(optarg, "driver",
3017 &error_fatal);
3018
3019 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3020 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3021 &error_fatal);
3022 visit_free(v);
3023 loc_save(&bdo->loc);
3024 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3025 break;
3026 }
3027 case QEMU_OPTION_drive:
3028 if (drive_def(optarg) == NULL) {
3029 exit(1);
3030 }
3031 break;
3032 case QEMU_OPTION_set:
3033 if (qemu_set_option(optarg) != 0)
3034 exit(1);
3035 break;
3036 case QEMU_OPTION_global:
3037 if (qemu_global_option(optarg) != 0)
3038 exit(1);
3039 break;
3040 case QEMU_OPTION_mtdblock:
3041 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3042 break;
3043 case QEMU_OPTION_sd:
3044 drive_add(IF_SD, -1, optarg, SD_OPTS);
3045 break;
3046 case QEMU_OPTION_pflash:
3047 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3048 break;
3049 case QEMU_OPTION_snapshot:
3050 {
3051 Error *blocker = NULL;
3052 snapshot = 1;
3053 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3054 "-snapshot");
3055 replay_add_blocker(blocker);
3056 }
3057 break;
3058 case QEMU_OPTION_numa:
3059 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3060 optarg, true);
3061 if (!opts) {
3062 exit(1);
3063 }
3064 break;
3065 case QEMU_OPTION_display:
3066 parse_display(optarg);
3067 break;
3068 case QEMU_OPTION_nographic:
3069 olist = qemu_find_opts("machine");
3070 qemu_opts_parse_noisily(olist, "graphics=off", false);
3071 nographic = true;
3072 dpy.type = DISPLAY_TYPE_NONE;
3073 break;
3074 case QEMU_OPTION_curses:
3075 #ifdef CONFIG_CURSES
3076 dpy.type = DISPLAY_TYPE_CURSES;
3077 #else
3078 error_report("curses or iconv support is disabled");
3079 exit(1);
3080 #endif
3081 break;
3082 case QEMU_OPTION_portrait:
3083 graphic_rotate = 90;
3084 break;
3085 case QEMU_OPTION_rotate:
3086 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3087 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3088 graphic_rotate != 180 && graphic_rotate != 270) {
3089 error_report("only 90, 180, 270 deg rotation is available");
3090 exit(1);
3091 }
3092 break;
3093 case QEMU_OPTION_kernel:
3094 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3095 &error_abort);
3096 break;
3097 case QEMU_OPTION_initrd:
3098 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3099 &error_abort);
3100 break;
3101 case QEMU_OPTION_append:
3102 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3103 &error_abort);
3104 break;
3105 case QEMU_OPTION_dtb:
3106 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3107 &error_abort);
3108 break;
3109 case QEMU_OPTION_cdrom:
3110 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3111 break;
3112 case QEMU_OPTION_boot:
3113 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3114 optarg, true);
3115 if (!opts) {
3116 exit(1);
3117 }
3118 break;
3119 case QEMU_OPTION_fda:
3120 case QEMU_OPTION_fdb:
3121 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3122 optarg, FD_OPTS);
3123 break;
3124 case QEMU_OPTION_no_fd_bootchk:
3125 fd_bootchk = 0;
3126 break;
3127 case QEMU_OPTION_netdev:
3128 default_net = 0;
3129 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3130 exit(1);
3131 }
3132 break;
3133 case QEMU_OPTION_nic:
3134 default_net = 0;
3135 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3136 exit(1);
3137 }
3138 break;
3139 case QEMU_OPTION_net:
3140 default_net = 0;
3141 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3142 exit(1);
3143 }
3144 break;
3145 #ifdef CONFIG_LIBISCSI
3146 case QEMU_OPTION_iscsi:
3147 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3148 optarg, false);
3149 if (!opts) {
3150 exit(1);
3151 }
3152 break;
3153 #endif
3154 case QEMU_OPTION_audio_help:
3155 audio_legacy_help();
3156 exit (0);
3157 break;
3158 case QEMU_OPTION_audiodev:
3159 audio_parse_option(optarg);
3160 break;
3161 case QEMU_OPTION_soundhw:
3162 select_soundhw (optarg);
3163 break;
3164 case QEMU_OPTION_h:
3165 help(0);
3166 break;
3167 case QEMU_OPTION_version:
3168 version();
3169 exit(0);
3170 break;
3171 case QEMU_OPTION_m:
3172 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3173 optarg, true);
3174 if (!opts) {
3175 exit(EXIT_FAILURE);
3176 }
3177 break;
3178 #ifdef CONFIG_TPM
3179 case QEMU_OPTION_tpmdev:
3180 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3181 exit(1);
3182 }
3183 break;
3184 #endif
3185 case QEMU_OPTION_mempath:
3186 mem_path = optarg;
3187 break;
3188 case QEMU_OPTION_mem_prealloc:
3189 mem_prealloc = 1;
3190 break;
3191 case QEMU_OPTION_d:
3192 log_mask = optarg;
3193 break;
3194 case QEMU_OPTION_D:
3195 log_file = optarg;
3196 break;
3197 case QEMU_OPTION_DFILTER:
3198 qemu_set_dfilter_ranges(optarg, &error_fatal);
3199 break;
3200 case QEMU_OPTION_seed:
3201 qemu_guest_random_seed_main(optarg, &error_fatal);
3202 break;
3203 case QEMU_OPTION_s:
3204 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3205 break;
3206 case QEMU_OPTION_gdb:
3207 add_device_config(DEV_GDB, optarg);
3208 break;
3209 case QEMU_OPTION_L:
3210 if (is_help_option(optarg)) {
3211 list_data_dirs = true;
3212 } else {
3213 qemu_add_data_dir(optarg);
3214 }
3215 break;
3216 case QEMU_OPTION_bios:
3217 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3218 &error_abort);
3219 break;
3220 case QEMU_OPTION_singlestep:
3221 singlestep = 1;
3222 break;
3223 case QEMU_OPTION_S:
3224 autostart = 0;
3225 break;
3226 case QEMU_OPTION_k:
3227 keyboard_layout = optarg;
3228 break;
3229 case QEMU_OPTION_vga:
3230 vga_model = optarg;
3231 default_vga = 0;
3232 break;
3233 case QEMU_OPTION_g:
3234 {
3235 const char *p;
3236 int w, h, depth;
3237 p = optarg;
3238 w = strtol(p, (char **)&p, 10);
3239 if (w <= 0) {
3240 graphic_error:
3241 error_report("invalid resolution or depth");
3242 exit(1);
3243 }
3244 if (*p != 'x')
3245 goto graphic_error;
3246 p++;
3247 h = strtol(p, (char **)&p, 10);
3248 if (h <= 0)
3249 goto graphic_error;
3250 if (*p == 'x') {
3251 p++;
3252 depth = strtol(p, (char **)&p, 10);
3253 if (depth != 1 && depth != 2 && depth != 4 &&
3254 depth != 8 && depth != 15 && depth != 16 &&
3255 depth != 24 && depth != 32)
3256 goto graphic_error;
3257 } else if (*p == '\0') {
3258 depth = graphic_depth;
3259 } else {
3260 goto graphic_error;
3261 }
3262
3263 graphic_width = w;
3264 graphic_height = h;
3265 graphic_depth = depth;
3266 }
3267 break;
3268 case QEMU_OPTION_echr:
3269 {
3270 char *r;
3271 term_escape_char = strtol(optarg, &r, 0);
3272 if (r == optarg)
3273 printf("Bad argument to echr\n");
3274 break;
3275 }
3276 case QEMU_OPTION_monitor:
3277 default_monitor = 0;
3278 if (strncmp(optarg, "none", 4)) {
3279 monitor_parse(optarg, "readline", false);
3280 }
3281 break;
3282 case QEMU_OPTION_qmp:
3283 monitor_parse(optarg, "control", false);
3284 default_monitor = 0;
3285 break;
3286 case QEMU_OPTION_qmp_pretty:
3287 monitor_parse(optarg, "control", true);
3288 default_monitor = 0;
3289 break;
3290 case QEMU_OPTION_mon:
3291 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3292 true);
3293 if (!opts) {
3294 exit(1);
3295 }
3296 default_monitor = 0;
3297 break;
3298 case QEMU_OPTION_chardev:
3299 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3300 optarg, true);
3301 if (!opts) {
3302 exit(1);
3303 }
3304 break;
3305 case QEMU_OPTION_fsdev:
3306 olist = qemu_find_opts("fsdev");
3307 if (!olist) {
3308 error_report("fsdev support is disabled");
3309 exit(1);
3310 }
3311 opts = qemu_opts_parse_noisily(olist, optarg, true);
3312 if (!opts) {
3313 exit(1);
3314 }
3315 break;
3316 case QEMU_OPTION_virtfs: {
3317 QemuOpts *fsdev;
3318 QemuOpts *device;
3319 const char *writeout, *sock_fd, *socket, *path, *security_model,
3320 *multidevs;
3321
3322 olist = qemu_find_opts("virtfs");
3323 if (!olist) {
3324 error_report("virtfs support is disabled");
3325 exit(1);
3326 }
3327 opts = qemu_opts_parse_noisily(olist, optarg, true);
3328 if (!opts) {
3329 exit(1);
3330 }
3331
3332 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3333 qemu_opt_get(opts, "mount_tag") == NULL) {
3334 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3335 exit(1);
3336 }
3337 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3338 qemu_opts_id(opts) ?:
3339 qemu_opt_get(opts, "mount_tag"),
3340 1, NULL);
3341 if (!fsdev) {
3342 error_report("duplicate or invalid fsdev id: %s",
3343 qemu_opt_get(opts, "mount_tag"));
3344 exit(1);
3345 }
3346
3347 writeout = qemu_opt_get(opts, "writeout");
3348 if (writeout) {
3349 #ifdef CONFIG_SYNC_FILE_RANGE
3350 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3351 #else
3352 error_report("writeout=immediate not supported "
3353 "on this platform");
3354 exit(1);
3355 #endif
3356 }
3357 qemu_opt_set(fsdev, "fsdriver",
3358 qemu_opt_get(opts, "fsdriver"), &error_abort);
3359 path = qemu_opt_get(opts, "path");
3360 if (path) {
3361 qemu_opt_set(fsdev, "path", path, &error_abort);
3362 }
3363 security_model = qemu_opt_get(opts, "security_model");
3364 if (security_model) {
3365 qemu_opt_set(fsdev, "security_model", security_model,
3366 &error_abort);
3367 }
3368 socket = qemu_opt_get(opts, "socket");
3369 if (socket) {
3370 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3371 }
3372 sock_fd = qemu_opt_get(opts, "sock_fd");
3373 if (sock_fd) {
3374 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3375 }
3376
3377 qemu_opt_set_bool(fsdev, "readonly",
3378 qemu_opt_get_bool(opts, "readonly", 0),
3379 &error_abort);
3380 multidevs = qemu_opt_get(opts, "multidevs");
3381 if (multidevs) {
3382 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3383 }
3384 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3385 &error_abort);
3386 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3387 qemu_opt_set(device, "fsdev",
3388 qemu_opts_id(fsdev), &error_abort);
3389 qemu_opt_set(device, "mount_tag",
3390 qemu_opt_get(opts, "mount_tag"), &error_abort);
3391 break;
3392 }
3393 case QEMU_OPTION_serial:
3394 add_device_config(DEV_SERIAL, optarg);
3395 default_serial = 0;
3396 if (strncmp(optarg, "mon:", 4) == 0) {
3397 default_monitor = 0;
3398 }
3399 break;
3400 case QEMU_OPTION_watchdog:
3401 if (watchdog) {
3402 error_report("only one watchdog option may be given");
3403 return 1;
3404 }
3405 watchdog = optarg;
3406 break;
3407 case QEMU_OPTION_watchdog_action:
3408 if (select_watchdog_action(optarg) == -1) {
3409 error_report("unknown -watchdog-action parameter");
3410 exit(1);
3411 }
3412 break;
3413 case QEMU_OPTION_parallel:
3414 add_device_config(DEV_PARALLEL, optarg);
3415 default_parallel = 0;
3416 if (strncmp(optarg, "mon:", 4) == 0) {
3417 default_monitor = 0;
3418 }
3419 break;
3420 case QEMU_OPTION_debugcon:
3421 add_device_config(DEV_DEBUGCON, optarg);
3422 break;
3423 case QEMU_OPTION_loadvm:
3424 loadvm = optarg;
3425 break;
3426 case QEMU_OPTION_full_screen:
3427 dpy.has_full_screen = true;
3428 dpy.full_screen = true;
3429 break;
3430 case QEMU_OPTION_alt_grab:
3431 alt_grab = 1;
3432 break;
3433 case QEMU_OPTION_ctrl_grab:
3434 ctrl_grab = 1;
3435 break;
3436 case QEMU_OPTION_no_quit:
3437 dpy.has_window_close = true;
3438 dpy.window_close = false;
3439 break;
3440 case QEMU_OPTION_sdl:
3441 #ifdef CONFIG_SDL
3442 dpy.type = DISPLAY_TYPE_SDL;
3443 break;
3444 #else
3445 error_report("SDL support is disabled");
3446 exit(1);
3447 #endif
3448 case QEMU_OPTION_pidfile:
3449 pid_file = optarg;
3450 break;
3451 case QEMU_OPTION_win2k_hack:
3452 win2k_install_hack = 1;
3453 break;
3454 case QEMU_OPTION_acpitable:
3455 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3456 optarg, true);
3457 if (!opts) {
3458 exit(1);
3459 }
3460 acpi_table_add(opts, &error_fatal);
3461 break;
3462 case QEMU_OPTION_smbios:
3463 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3464 optarg, false);
3465 if (!opts) {
3466 exit(1);
3467 }
3468 smbios_entry_add(opts, &error_fatal);
3469 break;
3470 case QEMU_OPTION_fwcfg:
3471 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3472 optarg, true);
3473 if (opts == NULL) {
3474 exit(1);
3475 }
3476 break;
3477 case QEMU_OPTION_preconfig:
3478 preconfig_exit_requested = false;
3479 break;
3480 case QEMU_OPTION_enable_kvm:
3481 olist = qemu_find_opts("machine");
3482 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3483 break;
3484 case QEMU_OPTION_M:
3485 case QEMU_OPTION_machine:
3486 olist = qemu_find_opts("machine");
3487 opts = qemu_opts_parse_noisily(olist, optarg, true);
3488 if (!opts) {
3489 exit(1);
3490 }
3491 break;
3492 case QEMU_OPTION_no_kvm:
3493 olist = qemu_find_opts("machine");
3494 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3495 break;
3496 case QEMU_OPTION_accel:
3497 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3498 optarg, true);
3499 optarg = qemu_opt_get(accel_opts, "accel");
3500 if (!optarg || is_help_option(optarg)) {
3501 printf("Accelerators supported in QEMU binary:\n");
3502 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3503 false);
3504 for (el = accel_list; el; el = el->next) {
3505 gchar *typename = g_strdup(object_class_get_name(
3506 OBJECT_CLASS(el->data)));
3507 /* omit qtest which is used for tests only */
3508 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3509 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3510 gchar **optname = g_strsplit(typename,
3511 ACCEL_CLASS_SUFFIX, 0);
3512 printf("%s\n", optname[0]);
3513 g_strfreev(optname);
3514 }
3515 g_free(typename);
3516 }
3517 g_slist_free(accel_list);
3518 exit(0);
3519 }
3520 if (optarg && strchr(optarg, ':')) {
3521 error_report("Don't use ':' with -accel, "
3522 "use -M accel=... for now instead");
3523 exit(1);
3524 }
3525 break;
3526 case QEMU_OPTION_usb:
3527 olist = qemu_find_opts("machine");
3528 qemu_opts_parse_noisily(olist, "usb=on", false);
3529 break;
3530 case QEMU_OPTION_usbdevice:
3531 error_report("'-usbdevice' is deprecated, please use "
3532 "'-device usb-...' instead");
3533 olist = qemu_find_opts("machine");
3534 qemu_opts_parse_noisily(olist, "usb=on", false);
3535 add_device_config(DEV_USB, optarg);
3536 break;
3537 case QEMU_OPTION_device:
3538 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3539 optarg, true)) {
3540 exit(1);
3541 }
3542 break;
3543 case QEMU_OPTION_smp:
3544 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3545 optarg, true)) {
3546 exit(1);
3547 }
3548 break;
3549 case QEMU_OPTION_vnc:
3550 vnc_parse(optarg, &error_fatal);
3551 break;
3552 case QEMU_OPTION_no_acpi:
3553 acpi_enabled = 0;
3554 break;
3555 case QEMU_OPTION_no_hpet:
3556 no_hpet = 1;
3557 break;
3558 case QEMU_OPTION_no_reboot:
3559 no_reboot = 1;
3560 break;
3561 case QEMU_OPTION_no_shutdown:
3562 no_shutdown = 1;
3563 break;
3564 case QEMU_OPTION_show_cursor:
3565 warn_report("The -show-cursor option is deprecated, "
3566 "use -display {sdl,gtk},show-cursor=on instead");
3567 dpy.has_show_cursor = true;
3568 dpy.show_cursor = true;
3569 break;
3570 case QEMU_OPTION_uuid:
3571 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3572 error_report("failed to parse UUID string: wrong format");
3573 exit(1);
3574 }
3575 qemu_uuid_set = true;
3576 break;
3577 case QEMU_OPTION_option_rom:
3578 if (nb_option_roms >= MAX_OPTION_ROMS) {
3579 error_report("too many option ROMs");
3580 exit(1);
3581 }
3582 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3583 optarg, true);
3584 if (!opts) {
3585 exit(1);
3586 }
3587 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3588 option_rom[nb_option_roms].bootindex =
3589 qemu_opt_get_number(opts, "bootindex", -1);
3590 if (!option_rom[nb_option_roms].name) {
3591 error_report("Option ROM file is not specified");
3592 exit(1);
3593 }
3594 nb_option_roms++;
3595 break;
3596 case QEMU_OPTION_semihosting:
3597 qemu_semihosting_enable();
3598 break;
3599 case QEMU_OPTION_semihosting_config:
3600 if (qemu_semihosting_config_options(optarg) != 0) {
3601 exit(1);
3602 }
3603 break;
3604 case QEMU_OPTION_name:
3605 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3606 optarg, true);
3607 if (!opts) {
3608 exit(1);
3609 }
3610 break;
3611 case QEMU_OPTION_prom_env:
3612 if (nb_prom_envs >= MAX_PROM_ENVS) {
3613 error_report("too many prom variables");
3614 exit(1);
3615 }
3616 prom_envs[nb_prom_envs] = optarg;
3617 nb_prom_envs++;
3618 break;
3619 case QEMU_OPTION_old_param:
3620 old_param = 1;
3621 break;
3622 case QEMU_OPTION_rtc:
3623 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3624 false);
3625 if (!opts) {
3626 exit(1);
3627 }
3628 break;
3629 case QEMU_OPTION_tb_size:
3630 #ifndef CONFIG_TCG
3631 error_report("TCG is disabled");
3632 exit(1);
3633 #endif
3634 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3635 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3636 break;
3637 case QEMU_OPTION_icount:
3638 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3639 optarg, true);
3640 if (!icount_opts) {
3641 exit(1);
3642 }
3643 break;
3644 case QEMU_OPTION_incoming:
3645 if (!incoming) {
3646 runstate_set(RUN_STATE_INMIGRATE);
3647 }
3648 incoming = optarg;
3649 break;
3650 case QEMU_OPTION_only_migratable:
3651 only_migratable = 1;
3652 break;
3653 case QEMU_OPTION_nodefaults:
3654 has_defaults = 0;
3655 break;
3656 case QEMU_OPTION_xen_domid:
3657 if (!(xen_available())) {
3658 error_report("Option not supported for this target");
3659 exit(1);
3660 }
3661 xen_domid = atoi(optarg);
3662 break;
3663 case QEMU_OPTION_xen_attach:
3664 if (!(xen_available())) {
3665 error_report("Option not supported for this target");
3666 exit(1);
3667 }
3668 xen_mode = XEN_ATTACH;
3669 break;
3670 case QEMU_OPTION_xen_domid_restrict:
3671 if (!(xen_available())) {
3672 error_report("Option not supported for this target");
3673 exit(1);
3674 }
3675 xen_domid_restrict = true;
3676 break;
3677 case QEMU_OPTION_trace:
3678 g_free(trace_file);
3679 trace_file = trace_opt_parse(optarg);
3680 break;
3681 case QEMU_OPTION_plugin:
3682 qemu_plugin_opt_parse(optarg, &plugin_list);
3683 break;
3684 case QEMU_OPTION_readconfig:
3685 {
3686 int ret = qemu_read_config_file(optarg);
3687 if (ret < 0) {
3688 error_report("read config %s: %s", optarg,
3689 strerror(-ret));
3690 exit(1);
3691 }
3692 break;
3693 }
3694 case QEMU_OPTION_spice:
3695 olist = qemu_find_opts("spice");
3696 if (!olist) {
3697 error_report("spice support is disabled");
3698 exit(1);
3699 }
3700 opts = qemu_opts_parse_noisily(olist, optarg, false);
3701 if (!opts) {
3702 exit(1);
3703 }
3704 display_remote++;
3705 break;
3706 case QEMU_OPTION_writeconfig:
3707 {
3708 FILE *fp;
3709 if (strcmp(optarg, "-") == 0) {
3710 fp = stdout;
3711 } else {
3712 fp = fopen(optarg, "w");
3713 if (fp == NULL) {
3714 error_report("open %s: %s", optarg,
3715 strerror(errno));
3716 exit(1);
3717 }
3718 }
3719 qemu_config_write(fp);
3720 if (fp != stdout) {
3721 fclose(fp);
3722 }
3723 break;
3724 }
3725 case QEMU_OPTION_qtest:
3726 qtest_chrdev = optarg;
3727 break;
3728 case QEMU_OPTION_qtest_log:
3729 qtest_log = optarg;
3730 break;
3731 case QEMU_OPTION_sandbox:
3732 olist = qemu_find_opts("sandbox");
3733 if (!olist) {
3734 #ifndef CONFIG_SECCOMP
3735 error_report("-sandbox support is not enabled "
3736 "in this QEMU binary");
3737 #endif
3738 exit(1);
3739 }
3740
3741 opts = qemu_opts_parse_noisily(olist, optarg, true);
3742 if (!opts) {
3743 exit(1);
3744 }
3745 break;
3746 case QEMU_OPTION_add_fd:
3747 #ifndef _WIN32
3748 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3749 optarg, false);
3750 if (!opts) {
3751 exit(1);
3752 }
3753 #else
3754 error_report("File descriptor passing is disabled on this "
3755 "platform");
3756 exit(1);
3757 #endif
3758 break;
3759 case QEMU_OPTION_object:
3760 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3761 optarg, true);
3762 if (!opts) {
3763 exit(1);
3764 }
3765 break;
3766 case QEMU_OPTION_realtime:
3767 warn_report("'-realtime mlock=...' is deprecated, please use "
3768 "'-overcommit mem-lock=...' instead");
3769 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3770 optarg, false);
3771 if (!opts) {
3772 exit(1);
3773 }
3774 /* Don't override the -overcommit option if set */
3775 enable_mlock = enable_mlock ||
3776 qemu_opt_get_bool(opts, "mlock", true);
3777 break;
3778 case QEMU_OPTION_overcommit:
3779 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3780 optarg, false);
3781 if (!opts) {
3782 exit(1);
3783 }
3784 /* Don't override the -realtime option if set */
3785 enable_mlock = enable_mlock ||
3786 qemu_opt_get_bool(opts, "mem-lock", false);
3787 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3788 break;
3789 case QEMU_OPTION_msg:
3790 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3791 false);
3792 if (!opts) {
3793 exit(1);
3794 }
3795 configure_msg(opts);
3796 break;
3797 case QEMU_OPTION_dump_vmstate:
3798 if (vmstate_dump_file) {
3799 error_report("only one '-dump-vmstate' "
3800 "option may be given");
3801 exit(1);
3802 }
3803 vmstate_dump_file = fopen(optarg, "w");
3804 if (vmstate_dump_file == NULL) {
3805 error_report("open %s: %s", optarg, strerror(errno));
3806 exit(1);
3807 }
3808 break;
3809 case QEMU_OPTION_enable_sync_profile:
3810 qsp_enable();
3811 break;
3812 case QEMU_OPTION_nouserconfig:
3813 /* Nothing to be parsed here. Especially, do not error out below. */
3814 break;
3815 default:
3816 if (os_parse_cmd_args(popt->index, optarg)) {
3817 error_report("Option not supported in this build");
3818 exit(1);
3819 }
3820 }
3821 }
3822 }
3823 /*
3824 * Clear error location left behind by the loop.
3825 * Best done right after the loop. Do not insert code here!
3826 */
3827 loc_set_none();
3828
3829 user_register_global_props();
3830
3831 replay_configure(icount_opts);
3832
3833 if (incoming && !preconfig_exit_requested) {
3834 error_report("'preconfig' and 'incoming' options are "
3835 "mutually exclusive");
3836 exit(EXIT_FAILURE);
3837 }
3838
3839 configure_rtc(qemu_find_opts_singleton("rtc"));
3840
3841 machine_class = select_machine();
3842 object_set_machine_compat_props(machine_class->compat_props);
3843
3844 set_memory_options(&ram_slots, &maxram_size, machine_class);
3845
3846 os_daemonize();
3847 rcu_disable_atfork();
3848
3849 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3850 error_reportf_err(err, "cannot create PID file: ");
3851 exit(1);
3852 }
3853
3854 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3855 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3856
3857 if (qemu_init_main_loop(&main_loop_err)) {
3858 error_report_err(main_loop_err);
3859 exit(1);
3860 }
3861
3862 #ifdef CONFIG_SECCOMP
3863 olist = qemu_find_opts_err("sandbox", NULL);
3864 if (olist) {
3865 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3866 }
3867 #endif
3868
3869 qemu_opts_foreach(qemu_find_opts("name"),
3870 parse_name, NULL, &error_fatal);
3871
3872 #ifndef _WIN32
3873 qemu_opts_foreach(qemu_find_opts("add-fd"),
3874 parse_add_fd, NULL, &error_fatal);
3875
3876 qemu_opts_foreach(qemu_find_opts("add-fd"),
3877 cleanup_add_fd, NULL, &error_fatal);
3878 #endif
3879
3880 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3881 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3882 exit(0);
3883 }
3884 object_property_add_child(object_get_root(), "machine",
3885 OBJECT(current_machine), &error_abort);
3886 object_property_add_child(container_get(OBJECT(current_machine),
3887 "/unattached"),
3888 "sysbus", OBJECT(sysbus_get_default()),
3889 NULL);
3890
3891 if (machine_class->minimum_page_bits) {
3892 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3893 /* This would be a board error: specifying a minimum smaller than
3894 * a target's compile-time fixed setting.
3895 */
3896 g_assert_not_reached();
3897 }
3898 }
3899
3900 cpu_exec_init_all();
3901
3902 if (machine_class->hw_version) {
3903 qemu_set_hw_version(machine_class->hw_version);
3904 }
3905
3906 if (cpu_option && is_help_option(cpu_option)) {
3907 list_cpus(cpu_option);
3908 exit(0);
3909 }
3910
3911 if (!trace_init_backends()) {
3912 exit(1);
3913 }
3914 trace_init_file(trace_file);
3915
3916 /* Open the logfile at this point and set the log mask if necessary.
3917 */
3918 qemu_set_log_filename(log_file, &error_fatal);
3919 if (log_mask) {
3920 int mask;
3921 mask = qemu_str_to_log_mask(log_mask);
3922 if (!mask) {
3923 qemu_print_log_usage(stdout);
3924 exit(1);
3925 }
3926 qemu_set_log(mask);
3927 } else {
3928 qemu_set_log(0);
3929 }
3930
3931 /* add configured firmware directories */
3932 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3933 for (i = 0; dirs[i] != NULL; i++) {
3934 qemu_add_data_dir(dirs[i]);
3935 }
3936 g_strfreev(dirs);
3937
3938 /* try to find datadir relative to the executable path */
3939 dir = os_find_datadir();
3940 qemu_add_data_dir(dir);
3941 g_free(dir);
3942
3943 /* add the datadir specified when building */
3944 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3945
3946 /* -L help lists the data directories and exits. */
3947 if (list_data_dirs) {
3948 for (i = 0; i < data_dir_idx; i++) {
3949 printf("%s\n", data_dir[i]);
3950 }
3951 exit(0);
3952 }
3953
3954 /* machine_class: default to UP */
3955 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3956 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3957 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3958
3959 /* default to machine_class->default_cpus */
3960 current_machine->smp.cpus = machine_class->default_cpus;
3961 current_machine->smp.max_cpus = machine_class->default_cpus;
3962 current_machine->smp.cores = 1;
3963 current_machine->smp.threads = 1;
3964
3965 machine_class->smp_parse(current_machine,
3966 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3967
3968 /* sanity-check smp_cpus and max_cpus against machine_class */
3969 if (current_machine->smp.cpus < machine_class->min_cpus) {
3970 error_report("Invalid SMP CPUs %d. The min CPUs "
3971 "supported by machine '%s' is %d",
3972 current_machine->smp.cpus,
3973 machine_class->name, machine_class->min_cpus);
3974 exit(1);
3975 }
3976 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3977 error_report("Invalid SMP CPUs %d. The max CPUs "
3978 "supported by machine '%s' is %d",
3979 current_machine->smp.max_cpus,
3980 machine_class->name, machine_class->max_cpus);
3981 exit(1);
3982 }
3983
3984 /*
3985 * Get the default machine options from the machine if it is not already
3986 * specified either by the configuration file or by the command line.
3987 */
3988 if (machine_class->default_machine_opts) {
3989 qemu_opts_set_defaults(qemu_find_opts("machine"),
3990 machine_class->default_machine_opts, 0);
3991 }
3992
3993 /* process plugin before CPUs are created, but once -smp has been parsed */
3994 if (qemu_plugin_load_list(&plugin_list)) {
3995 exit(1);
3996 }
3997
3998 qemu_opts_foreach(qemu_find_opts("device"),
3999 default_driver_check, NULL, NULL);
4000 qemu_opts_foreach(qemu_find_opts("global"),
4001 default_driver_check, NULL, NULL);
4002
4003 if (!vga_model && !default_vga) {
4004 vga_interface_type = VGA_DEVICE;
4005 }
4006 if (!has_defaults || machine_class->no_serial) {
4007 default_serial = 0;
4008 }
4009 if (!has_defaults || machine_class->no_parallel) {
4010 default_parallel = 0;
4011 }
4012 if (!has_defaults || machine_class->no_floppy) {
4013 default_floppy = 0;
4014 }
4015 if (!has_defaults || machine_class->no_cdrom) {
4016 default_cdrom = 0;
4017 }
4018 if (!has_defaults || machine_class->no_sdcard) {
4019 default_sdcard = 0;
4020 }
4021 if (!has_defaults) {
4022 default_monitor = 0;
4023 default_net = 0;
4024 default_vga = 0;
4025 }
4026
4027 if (is_daemonized()) {
4028 if (!preconfig_exit_requested) {
4029 error_report("'preconfig' and 'daemonize' options are "
4030 "mutually exclusive");
4031 exit(EXIT_FAILURE);
4032 }
4033
4034 /* According to documentation and historically, -nographic redirects
4035 * serial port, parallel port and monitor to stdio, which does not work
4036 * with -daemonize. We can redirect these to null instead, but since
4037 * -nographic is legacy, let's just error out.
4038 * We disallow -nographic only if all other ports are not redirected
4039 * explicitly, to not break existing legacy setups which uses
4040 * -nographic _and_ redirects all ports explicitly - this is valid
4041 * usage, -nographic is just a no-op in this case.
4042 */
4043 if (nographic
4044 && (default_parallel || default_serial || default_monitor)) {
4045 error_report("-nographic cannot be used with -daemonize");
4046 exit(1);
4047 }
4048 #ifdef CONFIG_CURSES
4049 if (dpy.type == DISPLAY_TYPE_CURSES) {
4050 error_report("curses display cannot be used with -daemonize");
4051 exit(1);
4052 }
4053 #endif
4054 }
4055
4056 if (nographic) {
4057 if (default_parallel)
4058 add_device_config(DEV_PARALLEL, "null");
4059 if (default_serial && default_monitor) {
4060 add_device_config(DEV_SERIAL, "mon:stdio");
4061 } else {
4062 if (default_serial)
4063 add_device_config(DEV_SERIAL, "stdio");
4064 if (default_monitor)
4065 monitor_parse("stdio", "readline", false);
4066 }
4067 } else {
4068 if (default_serial)
4069 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4070 if (default_parallel)
4071 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4072 if (default_monitor)
4073 monitor_parse("vc:80Cx24C", "readline", false);
4074 }
4075
4076 #if defined(CONFIG_VNC)
4077 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4078 display_remote++;
4079 }
4080 #endif
4081 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4082 if (!qemu_display_find_default(&dpy)) {
4083 dpy.type = DISPLAY_TYPE_NONE;
4084 #if defined(CONFIG_VNC)
4085 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4086 #endif
4087 }
4088 }
4089 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4090 dpy.type = DISPLAY_TYPE_NONE;
4091 }
4092
4093 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4094 error_report("-alt-grab and -ctrl-grab are only valid "
4095 "for SDL, ignoring option");
4096 }
4097 if (dpy.has_window_close &&
4098 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4099 error_report("-no-quit is only valid for GTK and SDL, "
4100 "ignoring option");
4101 }
4102
4103 qemu_display_early_init(&dpy);
4104 qemu_console_early_init();
4105
4106 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4107 #if defined(CONFIG_OPENGL)
4108 error_report("OpenGL is not supported by the display");
4109 #else
4110 error_report("OpenGL support is disabled");
4111 #endif
4112 exit(1);
4113 }
4114
4115 page_size_init();
4116 socket_init();
4117
4118 qemu_opts_foreach(qemu_find_opts("object"),
4119 user_creatable_add_opts_foreach,
4120 object_create_initial, &error_fatal);
4121
4122 qemu_opts_foreach(qemu_find_opts("chardev"),
4123 chardev_init_func, NULL, &error_fatal);
4124 /* now chardevs have been created we may have semihosting to connect */
4125 qemu_semihosting_connect_chardevs();
4126
4127 #ifdef CONFIG_VIRTFS
4128 qemu_opts_foreach(qemu_find_opts("fsdev"),
4129 fsdev_init_func, NULL, &error_fatal);
4130 #endif
4131
4132 if (qemu_opts_foreach(qemu_find_opts("device"),
4133 device_help_func, NULL, NULL)) {
4134 exit(0);
4135 }
4136
4137 /*
4138 * Note: we need to create block backends before
4139 * machine_set_property(), so machine properties can refer to
4140 * them.
4141 */
4142 configure_blockdev(&bdo_queue, machine_class, snapshot);
4143
4144 machine_opts = qemu_get_machine_opts();
4145 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4146 &error_fatal);
4147 current_machine->ram_size = ram_size;
4148 current_machine->maxram_size = maxram_size;
4149 current_machine->ram_slots = ram_slots;
4150
4151 /*
4152 * Note: uses machine properties such as kernel-irqchip, must run
4153 * after machine_set_property().
4154 */
4155 configure_accelerators(argv[0]);
4156
4157 /*
4158 * Beware, QOM objects created before this point miss global and
4159 * compat properties.
4160 *
4161 * Global properties get set up by qdev_prop_register_global(),
4162 * called from user_register_global_props(), and certain option
4163 * desugaring. Also in CPU feature desugaring (buried in
4164 * parse_cpu_option()), which happens below this point, but may
4165 * only target the CPU type, which can only be created after
4166 * parse_cpu_option() returned the type.
4167 *
4168 * Machine compat properties: object_set_machine_compat_props().
4169 * Accelerator compat props: object_set_accelerator_compat_props(),
4170 * called from configure_accelerator().
4171 */
4172
4173 if (!qtest_enabled() && machine_class->deprecation_reason) {
4174 error_report("Machine type '%s' is deprecated: %s",
4175 machine_class->name, machine_class->deprecation_reason);
4176 }
4177
4178 /*
4179 * Note: creates a QOM object, must run only after global and
4180 * compat properties have been set up.
4181 */
4182 migration_object_init();
4183
4184 if (qtest_chrdev) {
4185 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4186 }
4187
4188 machine_opts = qemu_get_machine_opts();
4189 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4190 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4191 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4192 bios_name = qemu_opt_get(machine_opts, "firmware");
4193
4194 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4195 if (opts) {
4196 boot_order = qemu_opt_get(opts, "order");
4197 if (boot_order) {
4198 validate_bootdevices(boot_order, &error_fatal);
4199 }
4200
4201 boot_once = qemu_opt_get(opts, "once");
4202 if (boot_once) {
4203 validate_bootdevices(boot_once, &error_fatal);
4204 }
4205
4206 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4207 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4208 }
4209
4210 if (!boot_order) {
4211 boot_order = machine_class->default_boot_order;
4212 }
4213
4214 if (!kernel_cmdline) {
4215 kernel_cmdline = "";
4216 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4217 }
4218
4219 linux_boot = (kernel_filename != NULL);
4220
4221 if (!linux_boot && *kernel_cmdline != '\0') {
4222 error_report("-append only allowed with -kernel option");
4223 exit(1);
4224 }
4225
4226 if (!linux_boot && initrd_filename != NULL) {
4227 error_report("-initrd only allowed with -kernel option");
4228 exit(1);
4229 }
4230
4231 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4232 /* fall back to the -kernel/-append */
4233 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4234 }
4235
4236 /* spice needs the timers to be initialized by this point */
4237 qemu_spice_init();
4238
4239 cpu_ticks_init();
4240
4241 if (default_net) {
4242 QemuOptsList *net = qemu_find_opts("net");
4243 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4244 #ifdef CONFIG_SLIRP
4245 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4246 #endif
4247 }
4248
4249 if (net_init_clients(&err) < 0) {
4250 error_report_err(err);
4251 exit(1);
4252 }
4253
4254 qemu_opts_foreach(qemu_find_opts("object"),
4255 user_creatable_add_opts_foreach,
4256 object_create_delayed, &error_fatal);
4257
4258 tpm_init();
4259
4260 if (!xen_enabled()) {
4261 /* On 32-bit hosts, QEMU is limited by virtual address space */
4262 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4263 error_report("at most 2047 MB RAM can be simulated");
4264 exit(1);
4265 }
4266 }
4267
4268 blk_mig_init();
4269 ram_mig_init();
4270 dirty_bitmap_mig_init();
4271
4272 qemu_opts_foreach(qemu_find_opts("mon"),
4273 mon_init_func, NULL, &error_fatal);
4274
4275 /* connect semihosting console input if requested */
4276 qemu_semihosting_console_init();
4277
4278 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4279 exit(1);
4280 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4281 exit(1);
4282 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4283 exit(1);
4284
4285 /* If no default VGA is requested, the default is "none". */
4286 if (default_vga) {
4287 vga_model = get_default_vga_model(machine_class);
4288 }
4289 if (vga_model) {
4290 select_vgahw(machine_class, vga_model);
4291 }
4292
4293 if (watchdog) {
4294 i = select_watchdog(watchdog);
4295 if (i > 0)
4296 exit (i == 1 ? 1 : 0);
4297 }
4298
4299 /* This checkpoint is required by replay to separate prior clock
4300 reading from the other reads, because timer polling functions query
4301 clock values from the log. */
4302 replay_checkpoint(CHECKPOINT_INIT);
4303 qdev_machine_init();
4304
4305 current_machine->boot_order = boot_order;
4306
4307 /* parse features once if machine provides default cpu_type */
4308 current_machine->cpu_type = machine_class->default_cpu_type;
4309 if (cpu_option) {
4310 current_machine->cpu_type = parse_cpu_option(cpu_option);
4311 }
4312 parse_numa_opts(current_machine);
4313
4314 /* do monitor/qmp handling at preconfig state if requested */
4315 main_loop();
4316
4317 audio_init_audiodevs();
4318
4319 /* from here on runstate is RUN_STATE_PRELAUNCH */
4320 machine_run_board_init(current_machine);
4321
4322 realtime_init();
4323
4324 soundhw_init();
4325
4326 if (hax_enabled()) {
4327 hax_sync_vcpus();
4328 }
4329
4330 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4331 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4332
4333 /* init USB devices */
4334 if (machine_usb(current_machine)) {
4335 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4336 exit(1);
4337 }
4338
4339 /* init generic devices */
4340 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4341 qemu_opts_foreach(qemu_find_opts("device"),
4342 device_init_func, NULL, &error_fatal);
4343
4344 cpu_synchronize_all_post_init();
4345
4346 rom_reset_order_override();
4347
4348 /* Did we create any drives that we failed to create a device for? */
4349 drive_check_orphaned();
4350
4351 /* Don't warn about the default network setup that you get if
4352 * no command line -net or -netdev options are specified. There
4353 * are two cases that we would otherwise complain about:
4354 * (1) board doesn't support a NIC but the implicit "-net nic"
4355 * requested one
4356 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4357 * sets up a nic that isn't connected to anything.
4358 */
4359 if (!default_net && (!qtest_enabled() || has_defaults)) {
4360 net_check_clients();
4361 }
4362
4363 if (boot_once) {
4364 qemu_boot_set(boot_once, &error_fatal);
4365 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4366 }
4367
4368 /* init local displays */
4369 ds = init_displaystate();
4370 qemu_display_init(ds, &dpy);
4371
4372 /* must be after terminal init, SDL library changes signal handlers */
4373 os_setup_signal_handling();
4374
4375 /* init remote displays */
4376 #ifdef CONFIG_VNC
4377 qemu_opts_foreach(qemu_find_opts("vnc"),
4378 vnc_init_func, NULL, &error_fatal);
4379 #endif
4380
4381 if (using_spice) {
4382 qemu_spice_display_init();
4383 }
4384
4385 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4386 exit(1);
4387 }
4388
4389 qdev_machine_creation_done();
4390
4391 /* TODO: once all bus devices are qdevified, this should be done
4392 * when bus is created by qdev.c */
4393 /*
4394 * TODO: If we had a main 'reset container' that the whole system
4395 * lived in, we could reset that using the multi-phase reset
4396 * APIs. For the moment, we just reset the sysbus, which will cause
4397 * all devices hanging off it (and all their child buses, recursively)
4398 * to be reset. Note that this will *not* reset any Device objects
4399 * which are not attached to some part of the qbus tree!
4400 */
4401 qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
4402 qemu_run_machine_init_done_notifiers();
4403
4404 if (rom_check_and_register_reset() != 0) {
4405 error_report("rom check and register reset failed");
4406 exit(1);
4407 }
4408
4409 replay_start();
4410
4411 /* This checkpoint is required by replay to separate prior clock
4412 reading from the other reads, because timer polling functions query
4413 clock values from the log. */
4414 replay_checkpoint(CHECKPOINT_RESET);
4415 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4416 register_global_state();
4417 if (loadvm) {
4418 Error *local_err = NULL;
4419 if (load_snapshot(loadvm, &local_err) < 0) {
4420 error_report_err(local_err);
4421 autostart = 0;
4422 exit(1);
4423 }
4424 }
4425 if (replay_mode != REPLAY_MODE_NONE) {
4426 replay_vmstate_init();
4427 }
4428
4429 qdev_prop_check_globals();
4430 if (vmstate_dump_file) {
4431 /* dump and exit */
4432 dump_vmstate_json_to_file(vmstate_dump_file);
4433 return 0;
4434 }
4435
4436 if (incoming) {
4437 Error *local_err = NULL;
4438 qemu_start_incoming_migration(incoming, &local_err);
4439 if (local_err) {
4440 error_reportf_err(local_err, "-incoming %s: ", incoming);
4441 exit(1);
4442 }
4443 } else if (autostart) {
4444 vm_start();
4445 }
4446
4447 accel_setup_post(current_machine);
4448 os_setup_post();
4449
4450 main_loop();
4451
4452 gdbserver_cleanup();
4453
4454 /*
4455 * cleaning up the migration object cancels any existing migration
4456 * try to do this early so that it also stops using devices.
4457 */
4458 migration_shutdown();
4459
4460 /*
4461 * We must cancel all block jobs while the block layer is drained,
4462 * or cancelling will be affected by throttling and thus may block
4463 * for an extended period of time.
4464 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4465 * it in the drained section.
4466 * We do not need to end this section, because we do not want any
4467 * requests happening from here on anyway.
4468 */
4469 bdrv_drain_all_begin();
4470
4471 /* No more vcpu or device emulation activity beyond this point */
4472 vm_shutdown();
4473 replay_finish();
4474
4475 job_cancel_sync_all();
4476 bdrv_close_all();
4477
4478 res_free();
4479
4480 /* vhost-user must be cleaned up before chardevs. */
4481 tpm_cleanup();
4482 net_cleanup();
4483 audio_cleanup();
4484 monitor_cleanup();
4485 qemu_chr_cleanup();
4486 user_creatable_cleanup();
4487 /* TODO: unref root container, check all devices are ok */
4488
4489 return 0;
4490 }
QEmu