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