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vl.c: allocate TYPE_MACHINE list once during bootup
[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/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
33
34 #ifdef CONFIG_SDL
35 #if defined(__APPLE__) || defined(main)
36 #include <SDL.h>
37 int qemu_main(int argc, char **argv, char **envp);
38 int main(int argc, char **argv)
39 {
40 return qemu_main(argc, argv, NULL);
41 }
42 #undef main
43 #define main qemu_main
44 #endif
45 #endif /* CONFIG_SDL */
46
47 #ifdef CONFIG_COCOA
48 #undef main
49 #define main qemu_main
50 #endif /* CONFIG_COCOA */
51
52
53 #include "qemu/error-report.h"
54 #include "qemu/sockets.h"
55 #include "hw/hw.h"
56 #include "hw/boards.h"
57 #include "sysemu/accel.h"
58 #include "hw/usb.h"
59 #include "hw/isa/isa.h"
60 #include "hw/scsi/scsi.h"
61 #include "hw/display/vga.h"
62 #include "hw/bt.h"
63 #include "sysemu/watchdog.h"
64 #include "hw/firmware/smbios.h"
65 #include "hw/acpi/acpi.h"
66 #include "hw/xen/xen.h"
67 #include "hw/qdev.h"
68 #include "hw/loader.h"
69 #include "monitor/qdev.h"
70 #include "sysemu/bt.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/queue.h"
112 #include "sysemu/arch_init.h"
113
114 #include "ui/qemu-spice.h"
115 #include "qapi/string-input-visitor.h"
116 #include "qapi/opts-visitor.h"
117 #include "qapi/clone-visitor.h"
118 #include "qom/object_interfaces.h"
119 #include "exec/semihost.h"
120 #include "crypto/init.h"
121 #include "sysemu/replay.h"
122 #include "qapi/qapi-events-run-state.h"
123 #include "qapi/qapi-visit-block-core.h"
124 #include "qapi/qapi-visit-ui.h"
125 #include "qapi/qapi-commands-block-core.h"
126 #include "qapi/qapi-commands-misc.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
132 #define MAX_VIRTIO_CONSOLES 1
133
134 static const char *data_dir[16];
135 static int data_dir_idx;
136 const char *bios_name = NULL;
137 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
138 int display_opengl;
139 const char* keyboard_layout = NULL;
140 ram_addr_t ram_size;
141 const char *mem_path = NULL;
142 int mem_prealloc = 0; /* force preallocation of physical target memory */
143 bool enable_mlock = false;
144 bool enable_cpu_pm = false;
145 int nb_nics;
146 NICInfo nd_table[MAX_NICS];
147 int autostart;
148 static enum {
149 RTC_BASE_UTC,
150 RTC_BASE_LOCALTIME,
151 RTC_BASE_DATETIME,
152 } rtc_base_type = RTC_BASE_UTC;
153 static time_t rtc_ref_start_datetime;
154 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
155 static int rtc_host_datetime_offset = -1; /* valid & used only with
156 RTC_BASE_DATETIME */
157 QEMUClockType rtc_clock;
158 int vga_interface_type = VGA_NONE;
159 static DisplayOptions dpy;
160 static int num_serial_hds;
161 static Chardev **serial_hds;
162 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
163 int win2k_install_hack = 0;
164 int singlestep = 0;
165 int smp_cpus;
166 unsigned int max_cpus;
167 int smp_cores = 1;
168 int smp_threads = 1;
169 int acpi_enabled = 1;
170 int no_hpet = 0;
171 int fd_bootchk = 1;
172 static int no_reboot;
173 int no_shutdown = 0;
174 int cursor_hide = 1;
175 int graphic_rotate = 0;
176 const char *watchdog;
177 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
178 int nb_option_roms;
179 int old_param = 0;
180 const char *qemu_name;
181 int alt_grab = 0;
182 int ctrl_grab = 0;
183 unsigned int nb_prom_envs = 0;
184 const char *prom_envs[MAX_PROM_ENVS];
185 int boot_menu;
186 bool boot_strict;
187 uint8_t *boot_splash_filedata;
188 int only_migratable; /* turn it off unless user states otherwise */
189 bool wakeup_suspend_enabled;
190
191 int icount_align_option;
192
193 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
194 * little-endian "wire format" described in the SMBIOS 2.6 specification.
195 */
196 QemuUUID qemu_uuid;
197 bool qemu_uuid_set;
198
199 static NotifierList exit_notifiers =
200 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
201
202 static NotifierList machine_init_done_notifiers =
203 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
204
205 bool xen_allowed;
206 uint32_t xen_domid;
207 enum xen_mode xen_mode = XEN_EMULATE;
208 bool xen_domid_restrict;
209
210 static int has_defaults = 1;
211 static int default_serial = 1;
212 static int default_parallel = 1;
213 static int default_monitor = 1;
214 static int default_floppy = 1;
215 static int default_cdrom = 1;
216 static int default_sdcard = 1;
217 static int default_vga = 1;
218 static int default_net = 1;
219
220 static struct {
221 const char *driver;
222 int *flag;
223 } default_list[] = {
224 { .driver = "isa-serial", .flag = &default_serial },
225 { .driver = "isa-parallel", .flag = &default_parallel },
226 { .driver = "isa-fdc", .flag = &default_floppy },
227 { .driver = "floppy", .flag = &default_floppy },
228 { .driver = "ide-cd", .flag = &default_cdrom },
229 { .driver = "ide-hd", .flag = &default_cdrom },
230 { .driver = "ide-drive", .flag = &default_cdrom },
231 { .driver = "scsi-cd", .flag = &default_cdrom },
232 { .driver = "scsi-hd", .flag = &default_cdrom },
233 { .driver = "VGA", .flag = &default_vga },
234 { .driver = "isa-vga", .flag = &default_vga },
235 { .driver = "cirrus-vga", .flag = &default_vga },
236 { .driver = "isa-cirrus-vga", .flag = &default_vga },
237 { .driver = "vmware-svga", .flag = &default_vga },
238 { .driver = "qxl-vga", .flag = &default_vga },
239 { .driver = "virtio-vga", .flag = &default_vga },
240 { .driver = "ati-vga", .flag = &default_vga },
241 };
242
243 static QemuOptsList qemu_rtc_opts = {
244 .name = "rtc",
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
246 .merge_lists = true,
247 .desc = {
248 {
249 .name = "base",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "clock",
253 .type = QEMU_OPT_STRING,
254 },{
255 .name = "driftfix",
256 .type = QEMU_OPT_STRING,
257 },
258 { /* end of list */ }
259 },
260 };
261
262 static QemuOptsList qemu_option_rom_opts = {
263 .name = "option-rom",
264 .implied_opt_name = "romfile",
265 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
266 .desc = {
267 {
268 .name = "bootindex",
269 .type = QEMU_OPT_NUMBER,
270 }, {
271 .name = "romfile",
272 .type = QEMU_OPT_STRING,
273 },
274 { /* end of list */ }
275 },
276 };
277
278 static QemuOptsList qemu_machine_opts = {
279 .name = "machine",
280 .implied_opt_name = "type",
281 .merge_lists = true,
282 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
283 .desc = {
284 /*
285 * no elements => accept any
286 * sanity checking will happen later
287 * when setting machine properties
288 */
289 { }
290 },
291 };
292
293 static QemuOptsList qemu_accel_opts = {
294 .name = "accel",
295 .implied_opt_name = "accel",
296 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
297 .merge_lists = true,
298 .desc = {
299 {
300 .name = "accel",
301 .type = QEMU_OPT_STRING,
302 .help = "Select the type of accelerator",
303 },
304 {
305 .name = "thread",
306 .type = QEMU_OPT_STRING,
307 .help = "Enable/disable multi-threaded TCG",
308 },
309 { /* end of list */ }
310 },
311 };
312
313 static QemuOptsList qemu_boot_opts = {
314 .name = "boot-opts",
315 .implied_opt_name = "order",
316 .merge_lists = true,
317 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
318 .desc = {
319 {
320 .name = "order",
321 .type = QEMU_OPT_STRING,
322 }, {
323 .name = "once",
324 .type = QEMU_OPT_STRING,
325 }, {
326 .name = "menu",
327 .type = QEMU_OPT_BOOL,
328 }, {
329 .name = "splash",
330 .type = QEMU_OPT_STRING,
331 }, {
332 .name = "splash-time",
333 .type = QEMU_OPT_NUMBER,
334 }, {
335 .name = "reboot-timeout",
336 .type = QEMU_OPT_NUMBER,
337 }, {
338 .name = "strict",
339 .type = QEMU_OPT_BOOL,
340 },
341 { /*End of list */ }
342 },
343 };
344
345 static QemuOptsList qemu_add_fd_opts = {
346 .name = "add-fd",
347 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
348 .desc = {
349 {
350 .name = "fd",
351 .type = QEMU_OPT_NUMBER,
352 .help = "file descriptor of which a duplicate is added to fd set",
353 },{
354 .name = "set",
355 .type = QEMU_OPT_NUMBER,
356 .help = "ID of the fd set to add fd to",
357 },{
358 .name = "opaque",
359 .type = QEMU_OPT_STRING,
360 .help = "free-form string used to describe fd",
361 },
362 { /* end of list */ }
363 },
364 };
365
366 static QemuOptsList qemu_object_opts = {
367 .name = "object",
368 .implied_opt_name = "qom-type",
369 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
370 .desc = {
371 { }
372 },
373 };
374
375 static QemuOptsList qemu_tpmdev_opts = {
376 .name = "tpmdev",
377 .implied_opt_name = "type",
378 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
379 .desc = {
380 /* options are defined in the TPM backends */
381 { /* end of list */ }
382 },
383 };
384
385 static QemuOptsList qemu_realtime_opts = {
386 .name = "realtime",
387 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
388 .desc = {
389 {
390 .name = "mlock",
391 .type = QEMU_OPT_BOOL,
392 },
393 { /* end of list */ }
394 },
395 };
396
397 static QemuOptsList qemu_overcommit_opts = {
398 .name = "overcommit",
399 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
400 .desc = {
401 {
402 .name = "mem-lock",
403 .type = QEMU_OPT_BOOL,
404 },
405 {
406 .name = "cpu-pm",
407 .type = QEMU_OPT_BOOL,
408 },
409 { /* end of list */ }
410 },
411 };
412
413 static QemuOptsList qemu_msg_opts = {
414 .name = "msg",
415 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
416 .desc = {
417 {
418 .name = "timestamp",
419 .type = QEMU_OPT_BOOL,
420 },
421 { /* end of list */ }
422 },
423 };
424
425 static QemuOptsList qemu_name_opts = {
426 .name = "name",
427 .implied_opt_name = "guest",
428 .merge_lists = true,
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
430 .desc = {
431 {
432 .name = "guest",
433 .type = QEMU_OPT_STRING,
434 .help = "Sets the name of the guest.\n"
435 "This name will be displayed in the SDL window caption.\n"
436 "The name will also be used for the VNC server",
437 }, {
438 .name = "process",
439 .type = QEMU_OPT_STRING,
440 .help = "Sets the name of the QEMU process, as shown in top etc",
441 }, {
442 .name = "debug-threads",
443 .type = QEMU_OPT_BOOL,
444 .help = "When enabled, name the individual threads; defaults off.\n"
445 "NOTE: The thread names are for debugging and not a\n"
446 "stable API.",
447 },
448 { /* End of list */ }
449 },
450 };
451
452 static QemuOptsList qemu_mem_opts = {
453 .name = "memory",
454 .implied_opt_name = "size",
455 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
456 .merge_lists = true,
457 .desc = {
458 {
459 .name = "size",
460 .type = QEMU_OPT_SIZE,
461 },
462 {
463 .name = "slots",
464 .type = QEMU_OPT_NUMBER,
465 },
466 {
467 .name = "maxmem",
468 .type = QEMU_OPT_SIZE,
469 },
470 { /* end of list */ }
471 },
472 };
473
474 static QemuOptsList qemu_icount_opts = {
475 .name = "icount",
476 .implied_opt_name = "shift",
477 .merge_lists = true,
478 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
479 .desc = {
480 {
481 .name = "shift",
482 .type = QEMU_OPT_STRING,
483 }, {
484 .name = "align",
485 .type = QEMU_OPT_BOOL,
486 }, {
487 .name = "sleep",
488 .type = QEMU_OPT_BOOL,
489 }, {
490 .name = "rr",
491 .type = QEMU_OPT_STRING,
492 }, {
493 .name = "rrfile",
494 .type = QEMU_OPT_STRING,
495 }, {
496 .name = "rrsnapshot",
497 .type = QEMU_OPT_STRING,
498 },
499 { /* end of list */ }
500 },
501 };
502
503 static QemuOptsList qemu_semihosting_config_opts = {
504 .name = "semihosting-config",
505 .implied_opt_name = "enable",
506 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
507 .desc = {
508 {
509 .name = "enable",
510 .type = QEMU_OPT_BOOL,
511 }, {
512 .name = "target",
513 .type = QEMU_OPT_STRING,
514 }, {
515 .name = "arg",
516 .type = QEMU_OPT_STRING,
517 },
518 { /* end of list */ }
519 },
520 };
521
522 static QemuOptsList qemu_fw_cfg_opts = {
523 .name = "fw_cfg",
524 .implied_opt_name = "name",
525 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
526 .desc = {
527 {
528 .name = "name",
529 .type = QEMU_OPT_STRING,
530 .help = "Sets the fw_cfg name of the blob to be inserted",
531 }, {
532 .name = "file",
533 .type = QEMU_OPT_STRING,
534 .help = "Sets the name of the file from which "
535 "the fw_cfg blob will be loaded",
536 }, {
537 .name = "string",
538 .type = QEMU_OPT_STRING,
539 .help = "Sets content of the blob to be inserted from a string",
540 },
541 { /* end of list */ }
542 },
543 };
544
545 /**
546 * Get machine options
547 *
548 * Returns: machine options (never null).
549 */
550 QemuOpts *qemu_get_machine_opts(void)
551 {
552 return qemu_find_opts_singleton("machine");
553 }
554
555 const char *qemu_get_vm_name(void)
556 {
557 return qemu_name;
558 }
559
560 static void res_free(void)
561 {
562 g_free(boot_splash_filedata);
563 boot_splash_filedata = NULL;
564 }
565
566 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
567 {
568 const char *driver = qemu_opt_get(opts, "driver");
569 int i;
570
571 if (!driver)
572 return 0;
573 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
574 if (strcmp(default_list[i].driver, driver) != 0)
575 continue;
576 *(default_list[i].flag) = 0;
577 }
578 return 0;
579 }
580
581 /***********************************************************/
582 /* QEMU state */
583
584 static RunState current_run_state = RUN_STATE_PRECONFIG;
585
586 /* We use RUN_STATE__MAX but any invalid value will do */
587 static RunState vmstop_requested = RUN_STATE__MAX;
588 static QemuMutex vmstop_lock;
589
590 typedef struct {
591 RunState from;
592 RunState to;
593 } RunStateTransition;
594
595 static const RunStateTransition runstate_transitions_def[] = {
596 /* from -> to */
597 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
598 /* Early switch to inmigrate state to allow -incoming CLI option work
599 * as it used to. TODO: delay actual switching to inmigrate state to
600 * the point after machine is built and remove this hack.
601 */
602 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
603
604 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
605 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
607
608 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
609 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
610 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
611 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
612 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
613 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
615 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
616 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
617 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
618 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
619 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
620
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
622 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
624
625 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
626 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
627 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
628
629 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
630 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
632 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
633 { RUN_STATE_PAUSED, RUN_STATE_COLO},
634
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
636 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
638
639 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
640 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
641 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
642
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
648
649 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
650 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
651
652 { RUN_STATE_COLO, RUN_STATE_RUNNING },
653
654 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
655 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
656 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
657 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
658 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
660 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
661 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
662 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
663 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
664 { RUN_STATE_RUNNING, RUN_STATE_COLO},
665
666 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
667
668 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
669 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
670 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
671
672 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
673 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
674 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
675 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
677 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
678
679 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
680 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
681 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
682 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
683
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
685 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
686 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
687
688 { RUN_STATE__MAX, RUN_STATE__MAX },
689 };
690
691 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
692
693 bool runstate_check(RunState state)
694 {
695 return current_run_state == state;
696 }
697
698 bool runstate_store(char *str, size_t size)
699 {
700 const char *state = RunState_str(current_run_state);
701 size_t len = strlen(state) + 1;
702
703 if (len > size) {
704 return false;
705 }
706 memcpy(str, state, len);
707 return true;
708 }
709
710 static void runstate_init(void)
711 {
712 const RunStateTransition *p;
713
714 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
715 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
716 runstate_valid_transitions[p->from][p->to] = true;
717 }
718
719 qemu_mutex_init(&vmstop_lock);
720 }
721
722 /* This function will abort() on invalid state transitions */
723 void runstate_set(RunState new_state)
724 {
725 assert(new_state < RUN_STATE__MAX);
726
727 trace_runstate_set(current_run_state, RunState_str(current_run_state),
728 new_state, RunState_str(current_run_state));
729
730 if (current_run_state == new_state) {
731 return;
732 }
733
734 if (!runstate_valid_transitions[current_run_state][new_state]) {
735 error_report("invalid runstate transition: '%s' -> '%s'",
736 RunState_str(current_run_state),
737 RunState_str(new_state));
738 abort();
739 }
740
741 current_run_state = new_state;
742 }
743
744 int runstate_is_running(void)
745 {
746 return runstate_check(RUN_STATE_RUNNING);
747 }
748
749 bool runstate_needs_reset(void)
750 {
751 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
752 runstate_check(RUN_STATE_SHUTDOWN);
753 }
754
755 StatusInfo *qmp_query_status(Error **errp)
756 {
757 StatusInfo *info = g_malloc0(sizeof(*info));
758
759 info->running = runstate_is_running();
760 info->singlestep = singlestep;
761 info->status = current_run_state;
762
763 return info;
764 }
765
766 bool qemu_vmstop_requested(RunState *r)
767 {
768 qemu_mutex_lock(&vmstop_lock);
769 *r = vmstop_requested;
770 vmstop_requested = RUN_STATE__MAX;
771 qemu_mutex_unlock(&vmstop_lock);
772 return *r < RUN_STATE__MAX;
773 }
774
775 void qemu_system_vmstop_request_prepare(void)
776 {
777 qemu_mutex_lock(&vmstop_lock);
778 }
779
780 void qemu_system_vmstop_request(RunState state)
781 {
782 vmstop_requested = state;
783 qemu_mutex_unlock(&vmstop_lock);
784 qemu_notify_event();
785 }
786
787 /***********************************************************/
788 /* RTC reference time/date access */
789 static time_t qemu_ref_timedate(QEMUClockType clock)
790 {
791 time_t value = qemu_clock_get_ms(clock) / 1000;
792 switch (clock) {
793 case QEMU_CLOCK_REALTIME:
794 value -= rtc_realtime_clock_offset;
795 /* no break */
796 case QEMU_CLOCK_VIRTUAL:
797 value += rtc_ref_start_datetime;
798 break;
799 case QEMU_CLOCK_HOST:
800 if (rtc_base_type == RTC_BASE_DATETIME) {
801 value -= rtc_host_datetime_offset;
802 }
803 break;
804 default:
805 assert(0);
806 }
807 return value;
808 }
809
810 void qemu_get_timedate(struct tm *tm, int offset)
811 {
812 time_t ti = qemu_ref_timedate(rtc_clock);
813
814 ti += offset;
815
816 switch (rtc_base_type) {
817 case RTC_BASE_DATETIME:
818 case RTC_BASE_UTC:
819 gmtime_r(&ti, tm);
820 break;
821 case RTC_BASE_LOCALTIME:
822 localtime_r(&ti, tm);
823 break;
824 }
825 }
826
827 int qemu_timedate_diff(struct tm *tm)
828 {
829 time_t seconds;
830
831 switch (rtc_base_type) {
832 case RTC_BASE_DATETIME:
833 case RTC_BASE_UTC:
834 seconds = mktimegm(tm);
835 break;
836 case RTC_BASE_LOCALTIME:
837 {
838 struct tm tmp = *tm;
839 tmp.tm_isdst = -1; /* use timezone to figure it out */
840 seconds = mktime(&tmp);
841 break;
842 }
843 default:
844 abort();
845 }
846
847 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
848 }
849
850 static void configure_rtc_base_datetime(const char *startdate)
851 {
852 time_t rtc_start_datetime;
853 struct tm tm;
854
855 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
856 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
857 /* OK */
858 } else if (sscanf(startdate, "%d-%d-%d",
859 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
860 tm.tm_hour = 0;
861 tm.tm_min = 0;
862 tm.tm_sec = 0;
863 } else {
864 goto date_fail;
865 }
866 tm.tm_year -= 1900;
867 tm.tm_mon--;
868 rtc_start_datetime = mktimegm(&tm);
869 if (rtc_start_datetime == -1) {
870 date_fail:
871 error_report("invalid datetime format");
872 error_printf("valid formats: "
873 "'2006-06-17T16:01:21' or '2006-06-17'\n");
874 exit(1);
875 }
876 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
877 rtc_ref_start_datetime = rtc_start_datetime;
878 }
879
880 static void configure_rtc(QemuOpts *opts)
881 {
882 const char *value;
883
884 /* Set defaults */
885 rtc_clock = QEMU_CLOCK_HOST;
886 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
887 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
888
889 value = qemu_opt_get(opts, "base");
890 if (value) {
891 if (!strcmp(value, "utc")) {
892 rtc_base_type = RTC_BASE_UTC;
893 } else if (!strcmp(value, "localtime")) {
894 Error *blocker = NULL;
895 rtc_base_type = RTC_BASE_LOCALTIME;
896 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
897 "-rtc base=localtime");
898 replay_add_blocker(blocker);
899 } else {
900 rtc_base_type = RTC_BASE_DATETIME;
901 configure_rtc_base_datetime(value);
902 }
903 }
904 value = qemu_opt_get(opts, "clock");
905 if (value) {
906 if (!strcmp(value, "host")) {
907 rtc_clock = QEMU_CLOCK_HOST;
908 } else if (!strcmp(value, "rt")) {
909 rtc_clock = QEMU_CLOCK_REALTIME;
910 } else if (!strcmp(value, "vm")) {
911 rtc_clock = QEMU_CLOCK_VIRTUAL;
912 } else {
913 error_report("invalid option value '%s'", value);
914 exit(1);
915 }
916 }
917 value = qemu_opt_get(opts, "driftfix");
918 if (value) {
919 if (!strcmp(value, "slew")) {
920 static GlobalProperty slew_lost_ticks = {
921 .driver = "mc146818rtc",
922 .property = "lost_tick_policy",
923 .value = "slew",
924 };
925
926 qdev_prop_register_global(&slew_lost_ticks);
927 } else if (!strcmp(value, "none")) {
928 /* discard is default */
929 } else {
930 error_report("invalid option value '%s'", value);
931 exit(1);
932 }
933 }
934 }
935
936 /***********************************************************/
937 /* Bluetooth support */
938 static int nb_hcis;
939 static int cur_hci;
940 static struct HCIInfo *hci_table[MAX_NICS];
941
942 struct HCIInfo *qemu_next_hci(void)
943 {
944 if (cur_hci == nb_hcis)
945 return &null_hci;
946
947 return hci_table[cur_hci++];
948 }
949
950 static int bt_hci_parse(const char *str)
951 {
952 struct HCIInfo *hci;
953 bdaddr_t bdaddr;
954
955 if (nb_hcis >= MAX_NICS) {
956 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
957 return -1;
958 }
959
960 hci = hci_init(str);
961 if (!hci)
962 return -1;
963
964 bdaddr.b[0] = 0x52;
965 bdaddr.b[1] = 0x54;
966 bdaddr.b[2] = 0x00;
967 bdaddr.b[3] = 0x12;
968 bdaddr.b[4] = 0x34;
969 bdaddr.b[5] = 0x56 + nb_hcis;
970 hci->bdaddr_set(hci, bdaddr.b);
971
972 hci_table[nb_hcis++] = hci;
973
974 return 0;
975 }
976
977 static void bt_vhci_add(int vlan_id)
978 {
979 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
980
981 if (!vlan->slave)
982 warn_report("adding a VHCI to an empty scatternet %i",
983 vlan_id);
984
985 bt_vhci_init(bt_new_hci(vlan));
986 }
987
988 static struct bt_device_s *bt_device_add(const char *opt)
989 {
990 struct bt_scatternet_s *vlan;
991 int vlan_id = 0;
992 char *endp = strstr(opt, ",vlan=");
993 int len = (endp ? endp - opt : strlen(opt)) + 1;
994 char devname[10];
995
996 pstrcpy(devname, MIN(sizeof(devname), len), opt);
997
998 if (endp) {
999 vlan_id = strtol(endp + 6, &endp, 0);
1000 if (*endp) {
1001 error_report("unrecognised bluetooth vlan Id");
1002 return 0;
1003 }
1004 }
1005
1006 vlan = qemu_find_bt_vlan(vlan_id);
1007
1008 if (!vlan->slave)
1009 warn_report("adding a slave device to an empty scatternet %i",
1010 vlan_id);
1011
1012 if (!strcmp(devname, "keyboard"))
1013 return bt_keyboard_init(vlan);
1014
1015 error_report("unsupported bluetooth device '%s'", devname);
1016 return 0;
1017 }
1018
1019 static int bt_parse(const char *opt)
1020 {
1021 const char *endp, *p;
1022 int vlan;
1023
1024 if (strstart(opt, "hci", &endp)) {
1025 if (!*endp || *endp == ',') {
1026 if (*endp)
1027 if (!strstart(endp, ",vlan=", 0))
1028 opt = endp + 1;
1029
1030 return bt_hci_parse(opt);
1031 }
1032 } else if (strstart(opt, "vhci", &endp)) {
1033 if (!*endp || *endp == ',') {
1034 if (*endp) {
1035 if (strstart(endp, ",vlan=", &p)) {
1036 vlan = strtol(p, (char **) &endp, 0);
1037 if (*endp) {
1038 error_report("bad scatternet '%s'", p);
1039 return 1;
1040 }
1041 } else {
1042 error_report("bad parameter '%s'", endp + 1);
1043 return 1;
1044 }
1045 } else
1046 vlan = 0;
1047
1048 bt_vhci_add(vlan);
1049 return 0;
1050 }
1051 } else if (strstart(opt, "device:", &endp))
1052 return !bt_device_add(endp);
1053
1054 error_report("bad bluetooth parameter '%s'", opt);
1055 return 1;
1056 }
1057
1058 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1059 {
1060 const char *proc_name;
1061
1062 if (qemu_opt_get(opts, "debug-threads")) {
1063 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1064 }
1065 qemu_name = qemu_opt_get(opts, "guest");
1066
1067 proc_name = qemu_opt_get(opts, "process");
1068 if (proc_name) {
1069 os_set_proc_name(proc_name);
1070 }
1071
1072 return 0;
1073 }
1074
1075 bool defaults_enabled(void)
1076 {
1077 return has_defaults;
1078 }
1079
1080 #ifndef _WIN32
1081 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1082 {
1083 int fd, dupfd, flags;
1084 int64_t fdset_id;
1085 const char *fd_opaque = NULL;
1086 AddfdInfo *fdinfo;
1087
1088 fd = qemu_opt_get_number(opts, "fd", -1);
1089 fdset_id = qemu_opt_get_number(opts, "set", -1);
1090 fd_opaque = qemu_opt_get(opts, "opaque");
1091
1092 if (fd < 0) {
1093 error_setg(errp, "fd option is required and must be non-negative");
1094 return -1;
1095 }
1096
1097 if (fd <= STDERR_FILENO) {
1098 error_setg(errp, "fd cannot be a standard I/O stream");
1099 return -1;
1100 }
1101
1102 /*
1103 * All fds inherited across exec() necessarily have FD_CLOEXEC
1104 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1105 */
1106 flags = fcntl(fd, F_GETFD);
1107 if (flags == -1 || (flags & FD_CLOEXEC)) {
1108 error_setg(errp, "fd is not valid or already in use");
1109 return -1;
1110 }
1111
1112 if (fdset_id < 0) {
1113 error_setg(errp, "set option is required and must be non-negative");
1114 return -1;
1115 }
1116
1117 #ifdef F_DUPFD_CLOEXEC
1118 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1119 #else
1120 dupfd = dup(fd);
1121 if (dupfd != -1) {
1122 qemu_set_cloexec(dupfd);
1123 }
1124 #endif
1125 if (dupfd == -1) {
1126 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1127 return -1;
1128 }
1129
1130 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1131 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1132 &error_abort);
1133 g_free(fdinfo);
1134
1135 return 0;
1136 }
1137
1138 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1139 {
1140 int fd;
1141
1142 fd = qemu_opt_get_number(opts, "fd", -1);
1143 close(fd);
1144
1145 return 0;
1146 }
1147 #endif
1148
1149 /***********************************************************/
1150 /* QEMU Block devices */
1151
1152 #define HD_OPTS "media=disk"
1153 #define CDROM_OPTS "media=cdrom"
1154 #define FD_OPTS ""
1155 #define PFLASH_OPTS ""
1156 #define MTD_OPTS ""
1157 #define SD_OPTS ""
1158
1159 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1160 {
1161 BlockInterfaceType *block_default_type = opaque;
1162
1163 return drive_new(opts, *block_default_type, errp) == NULL;
1164 }
1165
1166 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1167 {
1168 if (qemu_opt_get(opts, "snapshot") == NULL) {
1169 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1170 }
1171 return 0;
1172 }
1173
1174 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1175 int index, const char *optstr)
1176 {
1177 QemuOpts *opts;
1178 DriveInfo *dinfo;
1179
1180 if (!enable || drive_get_by_index(type, index)) {
1181 return;
1182 }
1183
1184 opts = drive_add(type, index, NULL, optstr);
1185 if (snapshot) {
1186 drive_enable_snapshot(NULL, opts, NULL);
1187 }
1188
1189 dinfo = drive_new(opts, type, &error_abort);
1190 dinfo->is_default = true;
1191
1192 }
1193
1194 typedef struct BlockdevOptionsQueueEntry {
1195 BlockdevOptions *bdo;
1196 Location loc;
1197 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1198 } BlockdevOptionsQueueEntry;
1199
1200 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1201
1202 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1203 MachineClass *machine_class, int snapshot)
1204 {
1205 /*
1206 * If the currently selected machine wishes to override the
1207 * units-per-bus property of its default HBA interface type, do so
1208 * now.
1209 */
1210 if (machine_class->units_per_default_bus) {
1211 override_max_devs(machine_class->block_default_type,
1212 machine_class->units_per_default_bus);
1213 }
1214
1215 /* open the virtual block devices */
1216 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1217 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1218
1219 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1220 loc_push_restore(&bdo->loc);
1221 qmp_blockdev_add(bdo->bdo, &error_fatal);
1222 loc_pop(&bdo->loc);
1223 qapi_free_BlockdevOptions(bdo->bdo);
1224 g_free(bdo);
1225 }
1226 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1227 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1228 NULL, NULL);
1229 }
1230 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1231 &machine_class->block_default_type, &error_fatal)) {
1232 /* We printed help */
1233 exit(0);
1234 }
1235
1236 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1237 CDROM_OPTS);
1238 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1239 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1240
1241 }
1242
1243 static QemuOptsList qemu_smp_opts = {
1244 .name = "smp-opts",
1245 .implied_opt_name = "cpus",
1246 .merge_lists = true,
1247 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1248 .desc = {
1249 {
1250 .name = "cpus",
1251 .type = QEMU_OPT_NUMBER,
1252 }, {
1253 .name = "sockets",
1254 .type = QEMU_OPT_NUMBER,
1255 }, {
1256 .name = "cores",
1257 .type = QEMU_OPT_NUMBER,
1258 }, {
1259 .name = "threads",
1260 .type = QEMU_OPT_NUMBER,
1261 }, {
1262 .name = "maxcpus",
1263 .type = QEMU_OPT_NUMBER,
1264 },
1265 { /*End of list */ }
1266 },
1267 };
1268
1269 static void smp_parse(QemuOpts *opts)
1270 {
1271 if (opts) {
1272 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1273 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1274 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1275 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1276
1277 /* compute missing values, prefer sockets over cores over threads */
1278 if (cpus == 0 || sockets == 0) {
1279 cores = cores > 0 ? cores : 1;
1280 threads = threads > 0 ? threads : 1;
1281 if (cpus == 0) {
1282 sockets = sockets > 0 ? sockets : 1;
1283 cpus = cores * threads * sockets;
1284 } else {
1285 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1286 sockets = max_cpus / (cores * threads);
1287 }
1288 } else if (cores == 0) {
1289 threads = threads > 0 ? threads : 1;
1290 cores = cpus / (sockets * threads);
1291 cores = cores > 0 ? cores : 1;
1292 } else if (threads == 0) {
1293 threads = cpus / (cores * sockets);
1294 threads = threads > 0 ? threads : 1;
1295 } else if (sockets * cores * threads < cpus) {
1296 error_report("cpu topology: "
1297 "sockets (%u) * cores (%u) * threads (%u) < "
1298 "smp_cpus (%u)",
1299 sockets, cores, threads, cpus);
1300 exit(1);
1301 }
1302
1303 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1304
1305 if (max_cpus < cpus) {
1306 error_report("maxcpus must be equal to or greater than smp");
1307 exit(1);
1308 }
1309
1310 if (sockets * cores * threads > max_cpus) {
1311 error_report("cpu topology: "
1312 "sockets (%u) * cores (%u) * threads (%u) > "
1313 "maxcpus (%u)",
1314 sockets, cores, threads, max_cpus);
1315 exit(1);
1316 }
1317
1318 if (sockets * cores * threads != max_cpus) {
1319 warn_report("Invalid CPU topology deprecated: "
1320 "sockets (%u) * cores (%u) * threads (%u) "
1321 "!= maxcpus (%u)",
1322 sockets, cores, threads, max_cpus);
1323 }
1324
1325 smp_cpus = cpus;
1326 smp_cores = cores;
1327 smp_threads = threads;
1328 }
1329
1330 if (smp_cpus > 1) {
1331 Error *blocker = NULL;
1332 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1333 replay_add_blocker(blocker);
1334 }
1335 }
1336
1337 static void realtime_init(void)
1338 {
1339 if (enable_mlock) {
1340 if (os_mlock() < 0) {
1341 error_report("locking memory failed");
1342 exit(1);
1343 }
1344 }
1345 }
1346
1347
1348 static void configure_msg(QemuOpts *opts)
1349 {
1350 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1351 }
1352
1353 /***********************************************************/
1354 /* Semihosting */
1355
1356 typedef struct SemihostingConfig {
1357 bool enabled;
1358 SemihostingTarget target;
1359 const char **argv;
1360 int argc;
1361 const char *cmdline; /* concatenated argv */
1362 } SemihostingConfig;
1363
1364 static SemihostingConfig semihosting;
1365
1366 bool semihosting_enabled(void)
1367 {
1368 return semihosting.enabled;
1369 }
1370
1371 SemihostingTarget semihosting_get_target(void)
1372 {
1373 return semihosting.target;
1374 }
1375
1376 const char *semihosting_get_arg(int i)
1377 {
1378 if (i >= semihosting.argc) {
1379 return NULL;
1380 }
1381 return semihosting.argv[i];
1382 }
1383
1384 int semihosting_get_argc(void)
1385 {
1386 return semihosting.argc;
1387 }
1388
1389 const char *semihosting_get_cmdline(void)
1390 {
1391 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1392 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1393 }
1394 return semihosting.cmdline;
1395 }
1396
1397 static int add_semihosting_arg(void *opaque,
1398 const char *name, const char *val,
1399 Error **errp)
1400 {
1401 SemihostingConfig *s = opaque;
1402 if (strcmp(name, "arg") == 0) {
1403 s->argc++;
1404 /* one extra element as g_strjoinv() expects NULL-terminated array */
1405 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1406 s->argv[s->argc - 1] = val;
1407 s->argv[s->argc] = NULL;
1408 }
1409 return 0;
1410 }
1411
1412 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1413 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1414 {
1415 char *cmd_token;
1416
1417 /* argv[0] */
1418 add_semihosting_arg(&semihosting, "arg", file, NULL);
1419
1420 /* split -append and initialize argv[1..n] */
1421 cmd_token = strtok(g_strdup(cmd), " ");
1422 while (cmd_token) {
1423 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1424 cmd_token = strtok(NULL, " ");
1425 }
1426 }
1427
1428 /* Now we still need this for compatibility with XEN. */
1429 bool has_igd_gfx_passthru;
1430 static void igd_gfx_passthru(void)
1431 {
1432 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1433 }
1434
1435 /***********************************************************/
1436 /* USB devices */
1437
1438 static int usb_device_add(const char *devname)
1439 {
1440 USBDevice *dev = NULL;
1441
1442 if (!machine_usb(current_machine)) {
1443 return -1;
1444 }
1445
1446 dev = usbdevice_create(devname);
1447 if (!dev)
1448 return -1;
1449
1450 return 0;
1451 }
1452
1453 static int usb_parse(const char *cmdline)
1454 {
1455 int r;
1456 r = usb_device_add(cmdline);
1457 if (r < 0) {
1458 error_report("could not add USB device '%s'", cmdline);
1459 }
1460 return r;
1461 }
1462
1463 /***********************************************************/
1464 /* machine registration */
1465
1466 MachineState *current_machine;
1467
1468 static MachineClass *find_machine(const char *name, GSList *machines)
1469 {
1470 GSList *el;
1471 MachineClass *mc = NULL;
1472
1473 for (el = machines; el; el = el->next) {
1474 MachineClass *temp = el->data;
1475
1476 if (!strcmp(temp->name, name)) {
1477 mc = temp;
1478 break;
1479 }
1480 if (temp->alias &&
1481 !strcmp(temp->alias, name)) {
1482 mc = temp;
1483 break;
1484 }
1485 }
1486
1487 return mc;
1488 }
1489
1490 static MachineClass *find_default_machine(GSList *machines)
1491 {
1492 GSList *el;
1493 MachineClass *mc = NULL;
1494
1495 for (el = machines; el; el = el->next) {
1496 MachineClass *temp = el->data;
1497
1498 if (temp->is_default) {
1499 mc = temp;
1500 break;
1501 }
1502 }
1503
1504 return mc;
1505 }
1506
1507 MachineInfoList *qmp_query_machines(Error **errp)
1508 {
1509 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1510 MachineInfoList *mach_list = NULL;
1511
1512 for (el = machines; el; el = el->next) {
1513 MachineClass *mc = el->data;
1514 MachineInfoList *entry;
1515 MachineInfo *info;
1516
1517 info = g_malloc0(sizeof(*info));
1518 if (mc->is_default) {
1519 info->has_is_default = true;
1520 info->is_default = true;
1521 }
1522
1523 if (mc->alias) {
1524 info->has_alias = true;
1525 info->alias = g_strdup(mc->alias);
1526 }
1527
1528 info->name = g_strdup(mc->name);
1529 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1530 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1531
1532 entry = g_malloc0(sizeof(*entry));
1533 entry->value = info;
1534 entry->next = mach_list;
1535 mach_list = entry;
1536 }
1537
1538 g_slist_free(machines);
1539 return mach_list;
1540 }
1541
1542 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1543 {
1544 ObjectProperty *prop;
1545 ObjectPropertyIterator iter;
1546
1547 if (!qemu_opt_has_help_opt(opts)) {
1548 return 0;
1549 }
1550
1551 object_property_iter_init(&iter, OBJECT(machine));
1552 while ((prop = object_property_iter_next(&iter))) {
1553 if (!prop->set) {
1554 continue;
1555 }
1556
1557 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1558 prop->name, prop->type);
1559 if (prop->description) {
1560 printf(" (%s)\n", prop->description);
1561 } else {
1562 printf("\n");
1563 }
1564 }
1565
1566 return 1;
1567 }
1568
1569 struct vm_change_state_entry {
1570 VMChangeStateHandler *cb;
1571 void *opaque;
1572 QLIST_ENTRY (vm_change_state_entry) entries;
1573 };
1574
1575 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1576
1577 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1578 void *opaque)
1579 {
1580 VMChangeStateEntry *e;
1581
1582 e = g_malloc0(sizeof (*e));
1583
1584 e->cb = cb;
1585 e->opaque = opaque;
1586 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1587 return e;
1588 }
1589
1590 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1591 {
1592 QLIST_REMOVE (e, entries);
1593 g_free (e);
1594 }
1595
1596 void vm_state_notify(int running, RunState state)
1597 {
1598 VMChangeStateEntry *e, *next;
1599
1600 trace_vm_state_notify(running, state, RunState_str(state));
1601
1602 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1603 e->cb(e->opaque, running, state);
1604 }
1605 }
1606
1607 static ShutdownCause reset_requested;
1608 static ShutdownCause shutdown_requested;
1609 static int shutdown_signal;
1610 static pid_t shutdown_pid;
1611 static int powerdown_requested;
1612 static int debug_requested;
1613 static int suspend_requested;
1614 static bool preconfig_exit_requested = true;
1615 static WakeupReason wakeup_reason;
1616 static NotifierList powerdown_notifiers =
1617 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1618 static NotifierList suspend_notifiers =
1619 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1620 static NotifierList wakeup_notifiers =
1621 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1622 static NotifierList shutdown_notifiers =
1623 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1624 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1625
1626 ShutdownCause qemu_shutdown_requested_get(void)
1627 {
1628 return shutdown_requested;
1629 }
1630
1631 ShutdownCause qemu_reset_requested_get(void)
1632 {
1633 return reset_requested;
1634 }
1635
1636 static int qemu_shutdown_requested(void)
1637 {
1638 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1639 }
1640
1641 static void qemu_kill_report(void)
1642 {
1643 if (!qtest_driver() && shutdown_signal) {
1644 if (shutdown_pid == 0) {
1645 /* This happens for eg ^C at the terminal, so it's worth
1646 * avoiding printing an odd message in that case.
1647 */
1648 error_report("terminating on signal %d", shutdown_signal);
1649 } else {
1650 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1651
1652 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1653 shutdown_signal, shutdown_pid,
1654 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1655 g_free(shutdown_cmd);
1656 }
1657 shutdown_signal = 0;
1658 }
1659 }
1660
1661 static ShutdownCause qemu_reset_requested(void)
1662 {
1663 ShutdownCause r = reset_requested;
1664
1665 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1666 reset_requested = SHUTDOWN_CAUSE_NONE;
1667 return r;
1668 }
1669 return SHUTDOWN_CAUSE_NONE;
1670 }
1671
1672 static int qemu_suspend_requested(void)
1673 {
1674 int r = suspend_requested;
1675 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1676 suspend_requested = 0;
1677 return r;
1678 }
1679 return false;
1680 }
1681
1682 static WakeupReason qemu_wakeup_requested(void)
1683 {
1684 return wakeup_reason;
1685 }
1686
1687 static int qemu_powerdown_requested(void)
1688 {
1689 int r = powerdown_requested;
1690 powerdown_requested = 0;
1691 return r;
1692 }
1693
1694 static int qemu_debug_requested(void)
1695 {
1696 int r = debug_requested;
1697 debug_requested = 0;
1698 return r;
1699 }
1700
1701 void qemu_exit_preconfig_request(void)
1702 {
1703 preconfig_exit_requested = true;
1704 }
1705
1706 /*
1707 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1708 */
1709 void qemu_system_reset(ShutdownCause reason)
1710 {
1711 MachineClass *mc;
1712
1713 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1714
1715 cpu_synchronize_all_states();
1716
1717 if (mc && mc->reset) {
1718 mc->reset();
1719 } else {
1720 qemu_devices_reset();
1721 }
1722 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1723 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1724 }
1725 cpu_synchronize_all_post_reset();
1726 }
1727
1728 void qemu_system_guest_panicked(GuestPanicInformation *info)
1729 {
1730 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1731
1732 if (current_cpu) {
1733 current_cpu->crash_occurred = true;
1734 }
1735 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1736 !!info, info);
1737 vm_stop(RUN_STATE_GUEST_PANICKED);
1738 if (!no_shutdown) {
1739 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1740 !!info, info);
1741 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1742 }
1743
1744 if (info) {
1745 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1746 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1747 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1748 info->u.hyper_v.arg1,
1749 info->u.hyper_v.arg2,
1750 info->u.hyper_v.arg3,
1751 info->u.hyper_v.arg4,
1752 info->u.hyper_v.arg5);
1753 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1754 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1755 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1756 info->u.s390.core,
1757 S390CrashReason_str(info->u.s390.reason),
1758 info->u.s390.psw_mask,
1759 info->u.s390.psw_addr);
1760 }
1761 qapi_free_GuestPanicInformation(info);
1762 }
1763 }
1764
1765 void qemu_system_reset_request(ShutdownCause reason)
1766 {
1767 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1768 shutdown_requested = reason;
1769 } else {
1770 reset_requested = reason;
1771 }
1772 cpu_stop_current();
1773 qemu_notify_event();
1774 }
1775
1776 static void qemu_system_suspend(void)
1777 {
1778 pause_all_vcpus();
1779 notifier_list_notify(&suspend_notifiers, NULL);
1780 runstate_set(RUN_STATE_SUSPENDED);
1781 qapi_event_send_suspend();
1782 }
1783
1784 void qemu_system_suspend_request(void)
1785 {
1786 if (runstate_check(RUN_STATE_SUSPENDED)) {
1787 return;
1788 }
1789 suspend_requested = 1;
1790 cpu_stop_current();
1791 qemu_notify_event();
1792 }
1793
1794 void qemu_register_suspend_notifier(Notifier *notifier)
1795 {
1796 notifier_list_add(&suspend_notifiers, notifier);
1797 }
1798
1799 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1800 {
1801 trace_system_wakeup_request(reason);
1802
1803 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1804 error_setg(errp,
1805 "Unable to wake up: guest is not in suspended state");
1806 return;
1807 }
1808 if (!(wakeup_reason_mask & (1 << reason))) {
1809 return;
1810 }
1811 runstate_set(RUN_STATE_RUNNING);
1812 wakeup_reason = reason;
1813 qemu_notify_event();
1814 }
1815
1816 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1817 {
1818 if (enabled) {
1819 wakeup_reason_mask |= (1 << reason);
1820 } else {
1821 wakeup_reason_mask &= ~(1 << reason);
1822 }
1823 }
1824
1825 void qemu_register_wakeup_notifier(Notifier *notifier)
1826 {
1827 notifier_list_add(&wakeup_notifiers, notifier);
1828 }
1829
1830 void qemu_register_wakeup_support(void)
1831 {
1832 wakeup_suspend_enabled = true;
1833 }
1834
1835 bool qemu_wakeup_suspend_enabled(void)
1836 {
1837 return wakeup_suspend_enabled;
1838 }
1839
1840 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1841 {
1842 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1843 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1844
1845 return params;
1846 }
1847
1848 void qemu_system_killed(int signal, pid_t pid)
1849 {
1850 shutdown_signal = signal;
1851 shutdown_pid = pid;
1852 no_shutdown = 0;
1853
1854 /* Cannot call qemu_system_shutdown_request directly because
1855 * we are in a signal handler.
1856 */
1857 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1858 qemu_notify_event();
1859 }
1860
1861 void qemu_system_shutdown_request(ShutdownCause reason)
1862 {
1863 trace_qemu_system_shutdown_request(reason);
1864 replay_shutdown_request(reason);
1865 shutdown_requested = reason;
1866 qemu_notify_event();
1867 }
1868
1869 static void qemu_system_powerdown(void)
1870 {
1871 qapi_event_send_powerdown();
1872 notifier_list_notify(&powerdown_notifiers, NULL);
1873 }
1874
1875 static void qemu_system_shutdown(ShutdownCause cause)
1876 {
1877 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1878 notifier_list_notify(&shutdown_notifiers, &cause);
1879 }
1880
1881 void qemu_system_powerdown_request(void)
1882 {
1883 trace_qemu_system_powerdown_request();
1884 powerdown_requested = 1;
1885 qemu_notify_event();
1886 }
1887
1888 void qemu_register_powerdown_notifier(Notifier *notifier)
1889 {
1890 notifier_list_add(&powerdown_notifiers, notifier);
1891 }
1892
1893 void qemu_register_shutdown_notifier(Notifier *notifier)
1894 {
1895 notifier_list_add(&shutdown_notifiers, notifier);
1896 }
1897
1898 void qemu_system_debug_request(void)
1899 {
1900 debug_requested = 1;
1901 qemu_notify_event();
1902 }
1903
1904 static bool main_loop_should_exit(void)
1905 {
1906 RunState r;
1907 ShutdownCause request;
1908
1909 if (preconfig_exit_requested) {
1910 if (runstate_check(RUN_STATE_PRECONFIG)) {
1911 runstate_set(RUN_STATE_PRELAUNCH);
1912 }
1913 preconfig_exit_requested = false;
1914 return true;
1915 }
1916 if (qemu_debug_requested()) {
1917 vm_stop(RUN_STATE_DEBUG);
1918 }
1919 if (qemu_suspend_requested()) {
1920 qemu_system_suspend();
1921 }
1922 request = qemu_shutdown_requested();
1923 if (request) {
1924 qemu_kill_report();
1925 qemu_system_shutdown(request);
1926 if (no_shutdown) {
1927 vm_stop(RUN_STATE_SHUTDOWN);
1928 } else {
1929 return true;
1930 }
1931 }
1932 request = qemu_reset_requested();
1933 if (request) {
1934 pause_all_vcpus();
1935 qemu_system_reset(request);
1936 resume_all_vcpus();
1937 if (!runstate_check(RUN_STATE_RUNNING) &&
1938 !runstate_check(RUN_STATE_INMIGRATE)) {
1939 runstate_set(RUN_STATE_PRELAUNCH);
1940 }
1941 }
1942 if (qemu_wakeup_requested()) {
1943 pause_all_vcpus();
1944 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1945 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1946 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1947 resume_all_vcpus();
1948 qapi_event_send_wakeup();
1949 }
1950 if (qemu_powerdown_requested()) {
1951 qemu_system_powerdown();
1952 }
1953 if (qemu_vmstop_requested(&r)) {
1954 vm_stop(r);
1955 }
1956 return false;
1957 }
1958
1959 static void main_loop(void)
1960 {
1961 #ifdef CONFIG_PROFILER
1962 int64_t ti;
1963 #endif
1964 while (!main_loop_should_exit()) {
1965 #ifdef CONFIG_PROFILER
1966 ti = profile_getclock();
1967 #endif
1968 main_loop_wait(false);
1969 #ifdef CONFIG_PROFILER
1970 dev_time += profile_getclock() - ti;
1971 #endif
1972 }
1973 }
1974
1975 static void version(void)
1976 {
1977 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1978 QEMU_COPYRIGHT "\n");
1979 }
1980
1981 static void help(int exitcode)
1982 {
1983 version();
1984 printf("usage: %s [options] [disk_image]\n\n"
1985 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1986 error_get_progname());
1987
1988 #define QEMU_OPTIONS_GENERATE_HELP
1989 #include "qemu-options-wrapper.h"
1990
1991 printf("\nDuring emulation, the following keys are useful:\n"
1992 "ctrl-alt-f toggle full screen\n"
1993 "ctrl-alt-n switch to virtual console 'n'\n"
1994 "ctrl-alt toggle mouse and keyboard grab\n"
1995 "\n"
1996 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1997 "\n"
1998 QEMU_HELP_BOTTOM "\n");
1999
2000 exit(exitcode);
2001 }
2002
2003 #define HAS_ARG 0x0001
2004
2005 typedef struct QEMUOption {
2006 const char *name;
2007 int flags;
2008 int index;
2009 uint32_t arch_mask;
2010 } QEMUOption;
2011
2012 static const QEMUOption qemu_options[] = {
2013 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2014 #define QEMU_OPTIONS_GENERATE_OPTIONS
2015 #include "qemu-options-wrapper.h"
2016 { NULL },
2017 };
2018
2019 typedef struct VGAInterfaceInfo {
2020 const char *opt_name; /* option name */
2021 const char *name; /* human-readable name */
2022 /* Class names indicating that support is available.
2023 * If no class is specified, the interface is always available */
2024 const char *class_names[2];
2025 } VGAInterfaceInfo;
2026
2027 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2028 [VGA_NONE] = {
2029 .opt_name = "none",
2030 },
2031 [VGA_STD] = {
2032 .opt_name = "std",
2033 .name = "standard VGA",
2034 .class_names = { "VGA", "isa-vga" },
2035 },
2036 [VGA_CIRRUS] = {
2037 .opt_name = "cirrus",
2038 .name = "Cirrus VGA",
2039 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2040 },
2041 [VGA_VMWARE] = {
2042 .opt_name = "vmware",
2043 .name = "VMWare SVGA",
2044 .class_names = { "vmware-svga" },
2045 },
2046 [VGA_VIRTIO] = {
2047 .opt_name = "virtio",
2048 .name = "Virtio VGA",
2049 .class_names = { "virtio-vga" },
2050 },
2051 [VGA_QXL] = {
2052 .opt_name = "qxl",
2053 .name = "QXL VGA",
2054 .class_names = { "qxl-vga" },
2055 },
2056 [VGA_TCX] = {
2057 .opt_name = "tcx",
2058 .name = "TCX framebuffer",
2059 .class_names = { "SUNW,tcx" },
2060 },
2061 [VGA_CG3] = {
2062 .opt_name = "cg3",
2063 .name = "CG3 framebuffer",
2064 .class_names = { "cgthree" },
2065 },
2066 [VGA_XENFB] = {
2067 .opt_name = "xenfb",
2068 },
2069 };
2070
2071 static bool vga_interface_available(VGAInterfaceType t)
2072 {
2073 VGAInterfaceInfo *ti = &vga_interfaces[t];
2074
2075 assert(t < VGA_TYPE_MAX);
2076 return !ti->class_names[0] ||
2077 object_class_by_name(ti->class_names[0]) ||
2078 object_class_by_name(ti->class_names[1]);
2079 }
2080
2081 static void select_vgahw(const char *p)
2082 {
2083 const char *opts;
2084 int t;
2085
2086 assert(vga_interface_type == VGA_NONE);
2087 for (t = 0; t < VGA_TYPE_MAX; t++) {
2088 VGAInterfaceInfo *ti = &vga_interfaces[t];
2089 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2090 if (!vga_interface_available(t)) {
2091 error_report("%s not available", ti->name);
2092 exit(1);
2093 }
2094 vga_interface_type = t;
2095 break;
2096 }
2097 }
2098 if (t == VGA_TYPE_MAX) {
2099 invalid_vga:
2100 error_report("unknown vga type: %s", p);
2101 exit(1);
2102 }
2103 while (*opts) {
2104 const char *nextopt;
2105
2106 if (strstart(opts, ",retrace=", &nextopt)) {
2107 opts = nextopt;
2108 if (strstart(opts, "dumb", &nextopt))
2109 vga_retrace_method = VGA_RETRACE_DUMB;
2110 else if (strstart(opts, "precise", &nextopt))
2111 vga_retrace_method = VGA_RETRACE_PRECISE;
2112 else goto invalid_vga;
2113 } else goto invalid_vga;
2114 opts = nextopt;
2115 }
2116 }
2117
2118 static void parse_display_qapi(const char *optarg)
2119 {
2120 DisplayOptions *opts;
2121 Visitor *v;
2122
2123 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2124
2125 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2126 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2127
2128 qapi_free_DisplayOptions(opts);
2129 visit_free(v);
2130 }
2131
2132 DisplayOptions *qmp_query_display_options(Error **errp)
2133 {
2134 return QAPI_CLONE(DisplayOptions, &dpy);
2135 }
2136
2137 static void parse_display(const char *p)
2138 {
2139 const char *opts;
2140
2141 if (strstart(p, "sdl", &opts)) {
2142 /*
2143 * sdl DisplayType needs hand-crafted parser instead of
2144 * parse_display_qapi() due to some options not in
2145 * DisplayOptions, specifically:
2146 * - frame
2147 * Already deprecated.
2148 * - ctrl_grab + alt_grab
2149 * Not clear yet what happens to them long-term. Should
2150 * replaced by something better or deprecated and dropped.
2151 */
2152 dpy.type = DISPLAY_TYPE_SDL;
2153 while (*opts) {
2154 const char *nextopt;
2155
2156 if (strstart(opts, ",alt_grab=", &nextopt)) {
2157 opts = nextopt;
2158 if (strstart(opts, "on", &nextopt)) {
2159 alt_grab = 1;
2160 } else if (strstart(opts, "off", &nextopt)) {
2161 alt_grab = 0;
2162 } else {
2163 goto invalid_sdl_args;
2164 }
2165 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2166 opts = nextopt;
2167 if (strstart(opts, "on", &nextopt)) {
2168 ctrl_grab = 1;
2169 } else if (strstart(opts, "off", &nextopt)) {
2170 ctrl_grab = 0;
2171 } else {
2172 goto invalid_sdl_args;
2173 }
2174 } else if (strstart(opts, ",window_close=", &nextopt)) {
2175 opts = nextopt;
2176 dpy.has_window_close = true;
2177 if (strstart(opts, "on", &nextopt)) {
2178 dpy.window_close = true;
2179 } else if (strstart(opts, "off", &nextopt)) {
2180 dpy.window_close = false;
2181 } else {
2182 goto invalid_sdl_args;
2183 }
2184 } else if (strstart(opts, ",gl=", &nextopt)) {
2185 opts = nextopt;
2186 dpy.has_gl = true;
2187 if (strstart(opts, "on", &nextopt)) {
2188 dpy.gl = DISPLAYGL_MODE_ON;
2189 } else if (strstart(opts, "core", &nextopt)) {
2190 dpy.gl = DISPLAYGL_MODE_CORE;
2191 } else if (strstart(opts, "es", &nextopt)) {
2192 dpy.gl = DISPLAYGL_MODE_ES;
2193 } else if (strstart(opts, "off", &nextopt)) {
2194 dpy.gl = DISPLAYGL_MODE_OFF;
2195 } else {
2196 goto invalid_sdl_args;
2197 }
2198 } else {
2199 invalid_sdl_args:
2200 error_report("invalid SDL option string");
2201 exit(1);
2202 }
2203 opts = nextopt;
2204 }
2205 } else if (strstart(p, "vnc", &opts)) {
2206 /*
2207 * vnc isn't a (local) DisplayType but a protocol for remote
2208 * display access.
2209 */
2210 if (*opts == '=') {
2211 vnc_parse(opts + 1, &error_fatal);
2212 } else {
2213 error_report("VNC requires a display argument vnc=<display>");
2214 exit(1);
2215 }
2216 } else {
2217 parse_display_qapi(p);
2218 }
2219 }
2220
2221 char *qemu_find_file(int type, const char *name)
2222 {
2223 int i;
2224 const char *subdir;
2225 char *buf;
2226
2227 /* Try the name as a straight path first */
2228 if (access(name, R_OK) == 0) {
2229 trace_load_file(name, name);
2230 return g_strdup(name);
2231 }
2232
2233 switch (type) {
2234 case QEMU_FILE_TYPE_BIOS:
2235 subdir = "";
2236 break;
2237 case QEMU_FILE_TYPE_KEYMAP:
2238 subdir = "keymaps/";
2239 break;
2240 default:
2241 abort();
2242 }
2243
2244 for (i = 0; i < data_dir_idx; i++) {
2245 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2246 if (access(buf, R_OK) == 0) {
2247 trace_load_file(name, buf);
2248 return buf;
2249 }
2250 g_free(buf);
2251 }
2252 return NULL;
2253 }
2254
2255 static void qemu_add_data_dir(const char *path)
2256 {
2257 int i;
2258
2259 if (path == NULL) {
2260 return;
2261 }
2262 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2263 return;
2264 }
2265 for (i = 0; i < data_dir_idx; i++) {
2266 if (strcmp(data_dir[i], path) == 0) {
2267 return; /* duplicate */
2268 }
2269 }
2270 data_dir[data_dir_idx++] = g_strdup(path);
2271 }
2272
2273 static inline bool nonempty_str(const char *str)
2274 {
2275 return str && *str;
2276 }
2277
2278 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2279 {
2280 gchar *buf;
2281 size_t size;
2282 const char *name, *file, *str;
2283 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2284
2285 if (fw_cfg == NULL) {
2286 error_setg(errp, "fw_cfg device not available");
2287 return -1;
2288 }
2289 name = qemu_opt_get(opts, "name");
2290 file = qemu_opt_get(opts, "file");
2291 str = qemu_opt_get(opts, "string");
2292
2293 /* we need name and either a file or the content string */
2294 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2295 error_setg(errp, "invalid argument(s)");
2296 return -1;
2297 }
2298 if (nonempty_str(file) && nonempty_str(str)) {
2299 error_setg(errp, "file and string are mutually exclusive");
2300 return -1;
2301 }
2302 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2303 error_setg(errp, "name too long (max. %d char)",
2304 FW_CFG_MAX_FILE_PATH - 1);
2305 return -1;
2306 }
2307 if (strncmp(name, "opt/", 4) != 0) {
2308 warn_report("externally provided fw_cfg item names "
2309 "should be prefixed with \"opt/\"");
2310 }
2311 if (nonempty_str(str)) {
2312 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2313 buf = g_memdup(str, size);
2314 } else {
2315 GError *err = NULL;
2316 if (!g_file_get_contents(file, &buf, &size, &err)) {
2317 error_setg(errp, "can't load %s: %s", file, err->message);
2318 g_error_free(err);
2319 return -1;
2320 }
2321 }
2322 /* For legacy, keep user files in a specific global order. */
2323 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2324 fw_cfg_add_file(fw_cfg, name, buf, size);
2325 fw_cfg_reset_order_override(fw_cfg);
2326 return 0;
2327 }
2328
2329 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2330 {
2331 return qdev_device_help(opts);
2332 }
2333
2334 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2335 {
2336 DeviceState *dev;
2337
2338 dev = qdev_device_add(opts, errp);
2339 if (!dev) {
2340 return -1;
2341 }
2342 object_unref(OBJECT(dev));
2343 return 0;
2344 }
2345
2346 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2347 {
2348 Error *local_err = NULL;
2349
2350 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2351 if (local_err) {
2352 error_propagate(errp, local_err);
2353 return -1;
2354 }
2355 exit(0);
2356 }
2357 return 0;
2358 }
2359
2360 #ifdef CONFIG_VIRTFS
2361 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2362 {
2363 return qemu_fsdev_add(opts, errp);
2364 }
2365 #endif
2366
2367 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2368 {
2369 Chardev *chr;
2370 const char *chardev;
2371 const char *mode;
2372 int flags;
2373
2374 mode = qemu_opt_get(opts, "mode");
2375 if (mode == NULL) {
2376 mode = "readline";
2377 }
2378 if (strcmp(mode, "readline") == 0) {
2379 flags = MONITOR_USE_READLINE;
2380 } else if (strcmp(mode, "control") == 0) {
2381 flags = MONITOR_USE_CONTROL;
2382 } else {
2383 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2384 return -1;
2385 }
2386
2387 if (qemu_opt_get_bool(opts, "pretty", 0))
2388 flags |= MONITOR_USE_PRETTY;
2389
2390 chardev = qemu_opt_get(opts, "chardev");
2391 if (!chardev) {
2392 error_report("chardev is required");
2393 exit(1);
2394 }
2395 chr = qemu_chr_find(chardev);
2396 if (chr == NULL) {
2397 error_setg(errp, "chardev \"%s\" not found", chardev);
2398 return -1;
2399 }
2400
2401 monitor_init(chr, flags);
2402 return 0;
2403 }
2404
2405 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2406 {
2407 static int monitor_device_index = 0;
2408 QemuOpts *opts;
2409 const char *p;
2410 char label[32];
2411
2412 if (strstart(optarg, "chardev:", &p)) {
2413 snprintf(label, sizeof(label), "%s", p);
2414 } else {
2415 snprintf(label, sizeof(label), "compat_monitor%d",
2416 monitor_device_index);
2417 opts = qemu_chr_parse_compat(label, optarg, true);
2418 if (!opts) {
2419 error_report("parse error: %s", optarg);
2420 exit(1);
2421 }
2422 }
2423
2424 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2425 qemu_opt_set(opts, "mode", mode, &error_abort);
2426 qemu_opt_set(opts, "chardev", label, &error_abort);
2427 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2428 monitor_device_index++;
2429 }
2430
2431 struct device_config {
2432 enum {
2433 DEV_USB, /* -usbdevice */
2434 DEV_BT, /* -bt */
2435 DEV_SERIAL, /* -serial */
2436 DEV_PARALLEL, /* -parallel */
2437 DEV_DEBUGCON, /* -debugcon */
2438 DEV_GDB, /* -gdb, -s */
2439 DEV_SCLP, /* s390 sclp */
2440 } type;
2441 const char *cmdline;
2442 Location loc;
2443 QTAILQ_ENTRY(device_config) next;
2444 };
2445
2446 static QTAILQ_HEAD(, device_config) device_configs =
2447 QTAILQ_HEAD_INITIALIZER(device_configs);
2448
2449 static void add_device_config(int type, const char *cmdline)
2450 {
2451 struct device_config *conf;
2452
2453 conf = g_malloc0(sizeof(*conf));
2454 conf->type = type;
2455 conf->cmdline = cmdline;
2456 loc_save(&conf->loc);
2457 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2458 }
2459
2460 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2461 {
2462 struct device_config *conf;
2463 int rc;
2464
2465 QTAILQ_FOREACH(conf, &device_configs, next) {
2466 if (conf->type != type)
2467 continue;
2468 loc_push_restore(&conf->loc);
2469 rc = func(conf->cmdline);
2470 loc_pop(&conf->loc);
2471 if (rc) {
2472 return rc;
2473 }
2474 }
2475 return 0;
2476 }
2477
2478 static int serial_parse(const char *devname)
2479 {
2480 int index = num_serial_hds;
2481 char label[32];
2482
2483 if (strcmp(devname, "none") == 0)
2484 return 0;
2485 snprintf(label, sizeof(label), "serial%d", index);
2486 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2487
2488 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2489 if (!serial_hds[index]) {
2490 error_report("could not connect serial device"
2491 " to character backend '%s'", devname);
2492 return -1;
2493 }
2494 num_serial_hds++;
2495 return 0;
2496 }
2497
2498 Chardev *serial_hd(int i)
2499 {
2500 assert(i >= 0);
2501 if (i < num_serial_hds) {
2502 return serial_hds[i];
2503 }
2504 return NULL;
2505 }
2506
2507 int serial_max_hds(void)
2508 {
2509 return num_serial_hds;
2510 }
2511
2512 static int parallel_parse(const char *devname)
2513 {
2514 static int index = 0;
2515 char label[32];
2516
2517 if (strcmp(devname, "none") == 0)
2518 return 0;
2519 if (index == MAX_PARALLEL_PORTS) {
2520 error_report("too many parallel ports");
2521 exit(1);
2522 }
2523 snprintf(label, sizeof(label), "parallel%d", index);
2524 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2525 if (!parallel_hds[index]) {
2526 error_report("could not connect parallel device"
2527 " to character backend '%s'", devname);
2528 return -1;
2529 }
2530 index++;
2531 return 0;
2532 }
2533
2534 static int debugcon_parse(const char *devname)
2535 {
2536 QemuOpts *opts;
2537
2538 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2539 error_report("invalid character backend '%s'", devname);
2540 exit(1);
2541 }
2542 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2543 if (!opts) {
2544 error_report("already have a debugcon device");
2545 exit(1);
2546 }
2547 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2548 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2549 return 0;
2550 }
2551
2552 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2553 {
2554 const MachineClass *mc1 = a, *mc2 = b;
2555 int res;
2556
2557 if (mc1->family == NULL) {
2558 if (mc2->family == NULL) {
2559 /* Compare standalone machine types against each other; they sort
2560 * in increasing order.
2561 */
2562 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2563 object_class_get_name(OBJECT_CLASS(mc2)));
2564 }
2565
2566 /* Standalone machine types sort after families. */
2567 return 1;
2568 }
2569
2570 if (mc2->family == NULL) {
2571 /* Families sort before standalone machine types. */
2572 return -1;
2573 }
2574
2575 /* Families sort between each other alphabetically increasingly. */
2576 res = strcmp(mc1->family, mc2->family);
2577 if (res != 0) {
2578 return res;
2579 }
2580
2581 /* Within the same family, machine types sort in decreasing order. */
2582 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2583 object_class_get_name(OBJECT_CLASS(mc1)));
2584 }
2585
2586 static MachineClass *machine_parse(const char *name, GSList *machines)
2587 {
2588 MachineClass *mc = NULL;
2589 GSList *el;
2590
2591 if (name) {
2592 mc = find_machine(name, machines);
2593 }
2594 if (mc) {
2595 return mc;
2596 }
2597 if (name && !is_help_option(name)) {
2598 error_report("unsupported machine type");
2599 error_printf("Use -machine help to list supported machines\n");
2600 } else {
2601 printf("Supported machines are:\n");
2602 machines = g_slist_sort(machines, machine_class_cmp);
2603 for (el = machines; el; el = el->next) {
2604 MachineClass *mc = el->data;
2605 if (mc->alias) {
2606 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2607 }
2608 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2609 mc->is_default ? " (default)" : "",
2610 mc->deprecation_reason ? " (deprecated)" : "");
2611 }
2612 }
2613
2614 exit(!name || !is_help_option(name));
2615 }
2616
2617 void qemu_add_exit_notifier(Notifier *notify)
2618 {
2619 notifier_list_add(&exit_notifiers, notify);
2620 }
2621
2622 void qemu_remove_exit_notifier(Notifier *notify)
2623 {
2624 notifier_remove(notify);
2625 }
2626
2627 static void qemu_run_exit_notifiers(void)
2628 {
2629 notifier_list_notify(&exit_notifiers, NULL);
2630 }
2631
2632 static const char *pid_file;
2633 static Notifier qemu_unlink_pidfile_notifier;
2634
2635 static void qemu_unlink_pidfile(Notifier *n, void *data)
2636 {
2637 if (pid_file) {
2638 unlink(pid_file);
2639 }
2640 }
2641
2642 bool machine_init_done;
2643
2644 void qemu_add_machine_init_done_notifier(Notifier *notify)
2645 {
2646 notifier_list_add(&machine_init_done_notifiers, notify);
2647 if (machine_init_done) {
2648 notify->notify(notify, NULL);
2649 }
2650 }
2651
2652 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2653 {
2654 notifier_remove(notify);
2655 }
2656
2657 static void qemu_run_machine_init_done_notifiers(void)
2658 {
2659 machine_init_done = true;
2660 notifier_list_notify(&machine_init_done_notifiers, NULL);
2661 }
2662
2663 static const QEMUOption *lookup_opt(int argc, char **argv,
2664 const char **poptarg, int *poptind)
2665 {
2666 const QEMUOption *popt;
2667 int optind = *poptind;
2668 char *r = argv[optind];
2669 const char *optarg;
2670
2671 loc_set_cmdline(argv, optind, 1);
2672 optind++;
2673 /* Treat --foo the same as -foo. */
2674 if (r[1] == '-')
2675 r++;
2676 popt = qemu_options;
2677 for(;;) {
2678 if (!popt->name) {
2679 error_report("invalid option");
2680 exit(1);
2681 }
2682 if (!strcmp(popt->name, r + 1))
2683 break;
2684 popt++;
2685 }
2686 if (popt->flags & HAS_ARG) {
2687 if (optind >= argc) {
2688 error_report("requires an argument");
2689 exit(1);
2690 }
2691 optarg = argv[optind++];
2692 loc_set_cmdline(argv, optind - 2, 2);
2693 } else {
2694 optarg = NULL;
2695 }
2696
2697 *poptarg = optarg;
2698 *poptind = optind;
2699
2700 return popt;
2701 }
2702
2703 static MachineClass *select_machine(void)
2704 {
2705 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2706 MachineClass *machine_class = find_default_machine(machines);
2707 const char *optarg;
2708 QemuOpts *opts;
2709 Location loc;
2710
2711 loc_push_none(&loc);
2712
2713 opts = qemu_get_machine_opts();
2714 qemu_opts_loc_restore(opts);
2715
2716 optarg = qemu_opt_get(opts, "type");
2717 if (optarg) {
2718 machine_class = machine_parse(optarg, machines);
2719 }
2720
2721 if (!machine_class) {
2722 error_report("No machine specified, and there is no default");
2723 error_printf("Use -machine help to list supported machines\n");
2724 exit(1);
2725 }
2726
2727 loc_pop(&loc);
2728 g_slist_free(machines);
2729 return machine_class;
2730 }
2731
2732 static int machine_set_property(void *opaque,
2733 const char *name, const char *value,
2734 Error **errp)
2735 {
2736 Object *obj = OBJECT(opaque);
2737 Error *local_err = NULL;
2738 char *p, *qom_name;
2739
2740 if (strcmp(name, "type") == 0) {
2741 return 0;
2742 }
2743
2744 qom_name = g_strdup(name);
2745 for (p = qom_name; *p; p++) {
2746 if (*p == '_') {
2747 *p = '-';
2748 }
2749 }
2750
2751 object_property_parse(obj, value, qom_name, &local_err);
2752 g_free(qom_name);
2753
2754 if (local_err) {
2755 error_propagate(errp, local_err);
2756 return -1;
2757 }
2758
2759 return 0;
2760 }
2761
2762
2763 /*
2764 * Initial object creation happens before all other
2765 * QEMU data types are created. The majority of objects
2766 * can be created at this point. The rng-egd object
2767 * cannot be created here, as it depends on the chardev
2768 * already existing.
2769 */
2770 static bool object_create_initial(const char *type, QemuOpts *opts)
2771 {
2772 ObjectClass *klass;
2773
2774 if (is_help_option(type)) {
2775 GSList *l, *list;
2776
2777 printf("List of user creatable objects:\n");
2778 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2779 for (l = list; l != NULL; l = l->next) {
2780 ObjectClass *oc = OBJECT_CLASS(l->data);
2781 printf(" %s\n", object_class_get_name(oc));
2782 }
2783 g_slist_free(list);
2784 exit(0);
2785 }
2786
2787 klass = object_class_by_name(type);
2788 if (klass && qemu_opt_has_help_opt(opts)) {
2789 ObjectPropertyIterator iter;
2790 ObjectProperty *prop;
2791 GPtrArray *array = g_ptr_array_new();
2792 int i;
2793
2794 object_class_property_iter_init(&iter, klass);
2795 while ((prop = object_property_iter_next(&iter))) {
2796 GString *str;
2797
2798 if (!prop->set) {
2799 continue;
2800 }
2801
2802 str = g_string_new(NULL);
2803 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2804 if (prop->description) {
2805 if (str->len < 24) {
2806 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2807 }
2808 g_string_append_printf(str, " - %s", prop->description);
2809 }
2810 g_ptr_array_add(array, g_string_free(str, false));
2811 }
2812 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2813 if (array->len > 0) {
2814 printf("%s options:\n", type);
2815 } else {
2816 printf("There are no options for %s.\n", type);
2817 }
2818 for (i = 0; i < array->len; i++) {
2819 printf("%s\n", (char *)array->pdata[i]);
2820 }
2821 g_ptr_array_set_free_func(array, g_free);
2822 g_ptr_array_free(array, true);
2823 exit(0);
2824 }
2825
2826 if (g_str_equal(type, "rng-egd") ||
2827 g_str_has_prefix(type, "pr-manager-")) {
2828 return false;
2829 }
2830
2831 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2832 if (g_str_equal(type, "cryptodev-vhost-user")) {
2833 return false;
2834 }
2835 #endif
2836
2837 /*
2838 * return false for concrete netfilters since
2839 * they depend on netdevs already existing
2840 */
2841 if (g_str_equal(type, "filter-buffer") ||
2842 g_str_equal(type, "filter-dump") ||
2843 g_str_equal(type, "filter-mirror") ||
2844 g_str_equal(type, "filter-redirector") ||
2845 g_str_equal(type, "colo-compare") ||
2846 g_str_equal(type, "filter-rewriter") ||
2847 g_str_equal(type, "filter-replay")) {
2848 return false;
2849 }
2850
2851 /* Memory allocation by backends needs to be done
2852 * after configure_accelerator() (due to the tcg_enabled()
2853 * checks at memory_region_init_*()).
2854 *
2855 * Also, allocation of large amounts of memory may delay
2856 * chardev initialization for too long, and trigger timeouts
2857 * on software that waits for a monitor socket to be created
2858 * (e.g. libvirt).
2859 */
2860 if (g_str_has_prefix(type, "memory-backend-")) {
2861 return false;
2862 }
2863
2864 return true;
2865 }
2866
2867
2868 /*
2869 * The remainder of object creation happens after the
2870 * creation of chardev, fsdev, net clients and device data types.
2871 */
2872 static bool object_create_delayed(const char *type, QemuOpts *opts)
2873 {
2874 return !object_create_initial(type, opts);
2875 }
2876
2877
2878 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2879 MachineClass *mc)
2880 {
2881 uint64_t sz;
2882 const char *mem_str;
2883 const ram_addr_t default_ram_size = mc->default_ram_size;
2884 QemuOpts *opts = qemu_find_opts_singleton("memory");
2885 Location loc;
2886
2887 loc_push_none(&loc);
2888 qemu_opts_loc_restore(opts);
2889
2890 sz = 0;
2891 mem_str = qemu_opt_get(opts, "size");
2892 if (mem_str) {
2893 if (!*mem_str) {
2894 error_report("missing 'size' option value");
2895 exit(EXIT_FAILURE);
2896 }
2897
2898 sz = qemu_opt_get_size(opts, "size", ram_size);
2899
2900 /* Fix up legacy suffix-less format */
2901 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2902 uint64_t overflow_check = sz;
2903
2904 sz *= MiB;
2905 if (sz / MiB != overflow_check) {
2906 error_report("too large 'size' option value");
2907 exit(EXIT_FAILURE);
2908 }
2909 }
2910 }
2911
2912 /* backward compatibility behaviour for case "-m 0" */
2913 if (sz == 0) {
2914 sz = default_ram_size;
2915 }
2916
2917 sz = QEMU_ALIGN_UP(sz, 8192);
2918 ram_size = sz;
2919 if (ram_size != sz) {
2920 error_report("ram size too large");
2921 exit(EXIT_FAILURE);
2922 }
2923
2924 /* store value for the future use */
2925 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2926 *maxram_size = ram_size;
2927
2928 if (qemu_opt_get(opts, "maxmem")) {
2929 uint64_t slots;
2930
2931 sz = qemu_opt_get_size(opts, "maxmem", 0);
2932 slots = qemu_opt_get_number(opts, "slots", 0);
2933 if (sz < ram_size) {
2934 error_report("invalid value of -m option maxmem: "
2935 "maximum memory size (0x%" PRIx64 ") must be at least "
2936 "the initial memory size (0x" RAM_ADDR_FMT ")",
2937 sz, ram_size);
2938 exit(EXIT_FAILURE);
2939 } else if (slots && sz == ram_size) {
2940 error_report("invalid value of -m option maxmem: "
2941 "memory slots were specified but maximum memory size "
2942 "(0x%" PRIx64 ") is equal to the initial memory size "
2943 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2944 exit(EXIT_FAILURE);
2945 }
2946
2947 *maxram_size = sz;
2948 *ram_slots = slots;
2949 } else if (qemu_opt_get(opts, "slots")) {
2950 error_report("invalid -m option value: missing 'maxmem' option");
2951 exit(EXIT_FAILURE);
2952 }
2953
2954 loc_pop(&loc);
2955 }
2956
2957 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2958 {
2959 GlobalProperty *g;
2960
2961 g = g_malloc0(sizeof(*g));
2962 g->driver = qemu_opt_get(opts, "driver");
2963 g->property = qemu_opt_get(opts, "property");
2964 g->value = qemu_opt_get(opts, "value");
2965 qdev_prop_register_global(g);
2966 return 0;
2967 }
2968
2969 static int qemu_read_default_config_file(void)
2970 {
2971 int ret;
2972
2973 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2974 if (ret < 0 && ret != -ENOENT) {
2975 return ret;
2976 }
2977
2978 return 0;
2979 }
2980
2981 static void user_register_global_props(void)
2982 {
2983 qemu_opts_foreach(qemu_find_opts("global"),
2984 global_init_func, NULL, NULL);
2985 }
2986
2987 int main(int argc, char **argv, char **envp)
2988 {
2989 int i;
2990 int snapshot, linux_boot;
2991 const char *initrd_filename;
2992 const char *kernel_filename, *kernel_cmdline;
2993 const char *boot_order = NULL;
2994 const char *boot_once = NULL;
2995 DisplayState *ds;
2996 QemuOpts *opts, *machine_opts;
2997 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2998 QemuOptsList *olist;
2999 int optind;
3000 const char *optarg;
3001 const char *loadvm = NULL;
3002 MachineClass *machine_class;
3003 const char *cpu_model;
3004 const char *vga_model = NULL;
3005 const char *qtest_chrdev = NULL;
3006 const char *qtest_log = NULL;
3007 const char *incoming = NULL;
3008 bool userconfig = true;
3009 bool nographic = false;
3010 int display_remote = 0;
3011 const char *log_mask = NULL;
3012 const char *log_file = NULL;
3013 char *trace_file = NULL;
3014 ram_addr_t maxram_size;
3015 uint64_t ram_slots = 0;
3016 FILE *vmstate_dump_file = NULL;
3017 Error *main_loop_err = NULL;
3018 Error *err = NULL;
3019 bool list_data_dirs = false;
3020 char *dir, **dirs;
3021 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3022
3023 error_init(argv[0]);
3024 module_call_init(MODULE_INIT_TRACE);
3025
3026 qemu_init_cpu_list();
3027 qemu_init_cpu_loop();
3028
3029 qemu_mutex_lock_iothread();
3030
3031 atexit(qemu_run_exit_notifiers);
3032 qemu_init_exec_dir(argv[0]);
3033
3034 module_call_init(MODULE_INIT_QOM);
3035
3036 qemu_add_opts(&qemu_drive_opts);
3037 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3038 qemu_add_drive_opts(&qemu_common_drive_opts);
3039 qemu_add_drive_opts(&qemu_drive_opts);
3040 qemu_add_drive_opts(&bdrv_runtime_opts);
3041 qemu_add_opts(&qemu_chardev_opts);
3042 qemu_add_opts(&qemu_device_opts);
3043 qemu_add_opts(&qemu_netdev_opts);
3044 qemu_add_opts(&qemu_nic_opts);
3045 qemu_add_opts(&qemu_net_opts);
3046 qemu_add_opts(&qemu_rtc_opts);
3047 qemu_add_opts(&qemu_global_opts);
3048 qemu_add_opts(&qemu_mon_opts);
3049 qemu_add_opts(&qemu_trace_opts);
3050 qemu_add_opts(&qemu_option_rom_opts);
3051 qemu_add_opts(&qemu_machine_opts);
3052 qemu_add_opts(&qemu_accel_opts);
3053 qemu_add_opts(&qemu_mem_opts);
3054 qemu_add_opts(&qemu_smp_opts);
3055 qemu_add_opts(&qemu_boot_opts);
3056 qemu_add_opts(&qemu_add_fd_opts);
3057 qemu_add_opts(&qemu_object_opts);
3058 qemu_add_opts(&qemu_tpmdev_opts);
3059 qemu_add_opts(&qemu_realtime_opts);
3060 qemu_add_opts(&qemu_overcommit_opts);
3061 qemu_add_opts(&qemu_msg_opts);
3062 qemu_add_opts(&qemu_name_opts);
3063 qemu_add_opts(&qemu_numa_opts);
3064 qemu_add_opts(&qemu_icount_opts);
3065 qemu_add_opts(&qemu_semihosting_config_opts);
3066 qemu_add_opts(&qemu_fw_cfg_opts);
3067 module_call_init(MODULE_INIT_OPTS);
3068
3069 runstate_init();
3070 precopy_infrastructure_init();
3071 postcopy_infrastructure_init();
3072 monitor_init_globals();
3073
3074 if (qcrypto_init(&err) < 0) {
3075 error_reportf_err(err, "cannot initialize crypto: ");
3076 exit(1);
3077 }
3078
3079 QLIST_INIT (&vm_change_state_head);
3080 os_setup_early_signal_handling();
3081
3082 cpu_model = NULL;
3083 snapshot = 0;
3084
3085 nb_nics = 0;
3086
3087 bdrv_init_with_whitelist();
3088
3089 autostart = 1;
3090
3091 /* first pass of option parsing */
3092 optind = 1;
3093 while (optind < argc) {
3094 if (argv[optind][0] != '-') {
3095 /* disk image */
3096 optind++;
3097 } else {
3098 const QEMUOption *popt;
3099
3100 popt = lookup_opt(argc, argv, &optarg, &optind);
3101 switch (popt->index) {
3102 case QEMU_OPTION_nouserconfig:
3103 userconfig = false;
3104 break;
3105 }
3106 }
3107 }
3108
3109 if (userconfig) {
3110 if (qemu_read_default_config_file() < 0) {
3111 exit(1);
3112 }
3113 }
3114
3115 /* second pass of option parsing */
3116 optind = 1;
3117 for(;;) {
3118 if (optind >= argc)
3119 break;
3120 if (argv[optind][0] != '-') {
3121 loc_set_cmdline(argv, optind, 1);
3122 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3123 } else {
3124 const QEMUOption *popt;
3125
3126 popt = lookup_opt(argc, argv, &optarg, &optind);
3127 if (!(popt->arch_mask & arch_type)) {
3128 error_report("Option not supported for this target");
3129 exit(1);
3130 }
3131 switch(popt->index) {
3132 case QEMU_OPTION_cpu:
3133 /* hw initialization will check this */
3134 cpu_model = optarg;
3135 break;
3136 case QEMU_OPTION_hda:
3137 case QEMU_OPTION_hdb:
3138 case QEMU_OPTION_hdc:
3139 case QEMU_OPTION_hdd:
3140 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3141 HD_OPTS);
3142 break;
3143 case QEMU_OPTION_blockdev:
3144 {
3145 Visitor *v;
3146 BlockdevOptionsQueueEntry *bdo;
3147
3148 v = qobject_input_visitor_new_str(optarg, "driver",
3149 &error_fatal);
3150
3151 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3152 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3153 &error_fatal);
3154 visit_free(v);
3155 loc_save(&bdo->loc);
3156 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3157 break;
3158 }
3159 case QEMU_OPTION_drive:
3160 if (drive_def(optarg) == NULL) {
3161 exit(1);
3162 }
3163 break;
3164 case QEMU_OPTION_set:
3165 if (qemu_set_option(optarg) != 0)
3166 exit(1);
3167 break;
3168 case QEMU_OPTION_global:
3169 if (qemu_global_option(optarg) != 0)
3170 exit(1);
3171 break;
3172 case QEMU_OPTION_mtdblock:
3173 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3174 break;
3175 case QEMU_OPTION_sd:
3176 drive_add(IF_SD, -1, optarg, SD_OPTS);
3177 break;
3178 case QEMU_OPTION_pflash:
3179 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3180 break;
3181 case QEMU_OPTION_snapshot:
3182 snapshot = 1;
3183 break;
3184 case QEMU_OPTION_numa:
3185 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3186 optarg, true);
3187 if (!opts) {
3188 exit(1);
3189 }
3190 break;
3191 case QEMU_OPTION_display:
3192 parse_display(optarg);
3193 break;
3194 case QEMU_OPTION_nographic:
3195 olist = qemu_find_opts("machine");
3196 qemu_opts_parse_noisily(olist, "graphics=off", false);
3197 nographic = true;
3198 dpy.type = DISPLAY_TYPE_NONE;
3199 break;
3200 case QEMU_OPTION_curses:
3201 #ifdef CONFIG_CURSES
3202 dpy.type = DISPLAY_TYPE_CURSES;
3203 #else
3204 error_report("curses or iconv support is disabled");
3205 exit(1);
3206 #endif
3207 break;
3208 case QEMU_OPTION_portrait:
3209 graphic_rotate = 90;
3210 break;
3211 case QEMU_OPTION_rotate:
3212 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3213 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3214 graphic_rotate != 180 && graphic_rotate != 270) {
3215 error_report("only 90, 180, 270 deg rotation is available");
3216 exit(1);
3217 }
3218 break;
3219 case QEMU_OPTION_kernel:
3220 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3221 &error_abort);
3222 break;
3223 case QEMU_OPTION_initrd:
3224 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3225 &error_abort);
3226 break;
3227 case QEMU_OPTION_append:
3228 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3229 &error_abort);
3230 break;
3231 case QEMU_OPTION_dtb:
3232 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3233 &error_abort);
3234 break;
3235 case QEMU_OPTION_cdrom:
3236 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3237 break;
3238 case QEMU_OPTION_boot:
3239 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3240 optarg, true);
3241 if (!opts) {
3242 exit(1);
3243 }
3244 break;
3245 case QEMU_OPTION_fda:
3246 case QEMU_OPTION_fdb:
3247 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3248 optarg, FD_OPTS);
3249 break;
3250 case QEMU_OPTION_no_fd_bootchk:
3251 fd_bootchk = 0;
3252 break;
3253 case QEMU_OPTION_netdev:
3254 default_net = 0;
3255 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3256 exit(1);
3257 }
3258 break;
3259 case QEMU_OPTION_nic:
3260 default_net = 0;
3261 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3262 exit(1);
3263 }
3264 break;
3265 case QEMU_OPTION_net:
3266 default_net = 0;
3267 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3268 exit(1);
3269 }
3270 break;
3271 #ifdef CONFIG_LIBISCSI
3272 case QEMU_OPTION_iscsi:
3273 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3274 optarg, false);
3275 if (!opts) {
3276 exit(1);
3277 }
3278 break;
3279 #endif
3280 case QEMU_OPTION_bt:
3281 warn_report("The bluetooth subsystem is deprecated and will "
3282 "be removed soon. If the bluetooth subsystem is "
3283 "still useful for you, please send a mail to "
3284 "qemu-devel@nongnu.org with your usecase.");
3285 add_device_config(DEV_BT, optarg);
3286 break;
3287 case QEMU_OPTION_audio_help:
3288 audio_legacy_help();
3289 exit (0);
3290 break;
3291 case QEMU_OPTION_audiodev:
3292 audio_parse_option(optarg);
3293 break;
3294 case QEMU_OPTION_soundhw:
3295 select_soundhw (optarg);
3296 break;
3297 case QEMU_OPTION_h:
3298 help(0);
3299 break;
3300 case QEMU_OPTION_version:
3301 version();
3302 exit(0);
3303 break;
3304 case QEMU_OPTION_m:
3305 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3306 optarg, true);
3307 if (!opts) {
3308 exit(EXIT_FAILURE);
3309 }
3310 break;
3311 #ifdef CONFIG_TPM
3312 case QEMU_OPTION_tpmdev:
3313 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3314 exit(1);
3315 }
3316 break;
3317 #endif
3318 case QEMU_OPTION_mempath:
3319 mem_path = optarg;
3320 break;
3321 case QEMU_OPTION_mem_prealloc:
3322 mem_prealloc = 1;
3323 break;
3324 case QEMU_OPTION_d:
3325 log_mask = optarg;
3326 break;
3327 case QEMU_OPTION_D:
3328 log_file = optarg;
3329 break;
3330 case QEMU_OPTION_DFILTER:
3331 qemu_set_dfilter_ranges(optarg, &error_fatal);
3332 break;
3333 case QEMU_OPTION_s:
3334 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3335 break;
3336 case QEMU_OPTION_gdb:
3337 add_device_config(DEV_GDB, optarg);
3338 break;
3339 case QEMU_OPTION_L:
3340 if (is_help_option(optarg)) {
3341 list_data_dirs = true;
3342 } else {
3343 qemu_add_data_dir(optarg);
3344 }
3345 break;
3346 case QEMU_OPTION_bios:
3347 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3348 &error_abort);
3349 break;
3350 case QEMU_OPTION_singlestep:
3351 singlestep = 1;
3352 break;
3353 case QEMU_OPTION_S:
3354 autostart = 0;
3355 break;
3356 case QEMU_OPTION_k:
3357 keyboard_layout = optarg;
3358 break;
3359 case QEMU_OPTION_vga:
3360 vga_model = optarg;
3361 default_vga = 0;
3362 break;
3363 case QEMU_OPTION_g:
3364 {
3365 const char *p;
3366 int w, h, depth;
3367 p = optarg;
3368 w = strtol(p, (char **)&p, 10);
3369 if (w <= 0) {
3370 graphic_error:
3371 error_report("invalid resolution or depth");
3372 exit(1);
3373 }
3374 if (*p != 'x')
3375 goto graphic_error;
3376 p++;
3377 h = strtol(p, (char **)&p, 10);
3378 if (h <= 0)
3379 goto graphic_error;
3380 if (*p == 'x') {
3381 p++;
3382 depth = strtol(p, (char **)&p, 10);
3383 if (depth != 8 && depth != 15 && depth != 16 &&
3384 depth != 24 && depth != 32)
3385 goto graphic_error;
3386 } else if (*p == '\0') {
3387 depth = graphic_depth;
3388 } else {
3389 goto graphic_error;
3390 }
3391
3392 graphic_width = w;
3393 graphic_height = h;
3394 graphic_depth = depth;
3395 }
3396 break;
3397 case QEMU_OPTION_echr:
3398 {
3399 char *r;
3400 term_escape_char = strtol(optarg, &r, 0);
3401 if (r == optarg)
3402 printf("Bad argument to echr\n");
3403 break;
3404 }
3405 case QEMU_OPTION_monitor:
3406 default_monitor = 0;
3407 if (strncmp(optarg, "none", 4)) {
3408 monitor_parse(optarg, "readline", false);
3409 }
3410 break;
3411 case QEMU_OPTION_qmp:
3412 monitor_parse(optarg, "control", false);
3413 default_monitor = 0;
3414 break;
3415 case QEMU_OPTION_qmp_pretty:
3416 monitor_parse(optarg, "control", true);
3417 default_monitor = 0;
3418 break;
3419 case QEMU_OPTION_mon:
3420 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3421 true);
3422 if (!opts) {
3423 exit(1);
3424 }
3425 default_monitor = 0;
3426 break;
3427 case QEMU_OPTION_chardev:
3428 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3429 optarg, true);
3430 if (!opts) {
3431 exit(1);
3432 }
3433 break;
3434 case QEMU_OPTION_fsdev:
3435 olist = qemu_find_opts("fsdev");
3436 if (!olist) {
3437 error_report("fsdev support is disabled");
3438 exit(1);
3439 }
3440 opts = qemu_opts_parse_noisily(olist, optarg, true);
3441 if (!opts) {
3442 exit(1);
3443 }
3444 break;
3445 case QEMU_OPTION_virtfs: {
3446 QemuOpts *fsdev;
3447 QemuOpts *device;
3448 const char *writeout, *sock_fd, *socket, *path, *security_model;
3449
3450 olist = qemu_find_opts("virtfs");
3451 if (!olist) {
3452 error_report("virtfs support is disabled");
3453 exit(1);
3454 }
3455 opts = qemu_opts_parse_noisily(olist, optarg, true);
3456 if (!opts) {
3457 exit(1);
3458 }
3459
3460 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3461 qemu_opt_get(opts, "mount_tag") == NULL) {
3462 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3463 exit(1);
3464 }
3465 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3466 qemu_opts_id(opts) ?:
3467 qemu_opt_get(opts, "mount_tag"),
3468 1, NULL);
3469 if (!fsdev) {
3470 error_report("duplicate or invalid fsdev id: %s",
3471 qemu_opt_get(opts, "mount_tag"));
3472 exit(1);
3473 }
3474
3475 writeout = qemu_opt_get(opts, "writeout");
3476 if (writeout) {
3477 #ifdef CONFIG_SYNC_FILE_RANGE
3478 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3479 #else
3480 error_report("writeout=immediate not supported "
3481 "on this platform");
3482 exit(1);
3483 #endif
3484 }
3485 qemu_opt_set(fsdev, "fsdriver",
3486 qemu_opt_get(opts, "fsdriver"), &error_abort);
3487 path = qemu_opt_get(opts, "path");
3488 if (path) {
3489 qemu_opt_set(fsdev, "path", path, &error_abort);
3490 }
3491 security_model = qemu_opt_get(opts, "security_model");
3492 if (security_model) {
3493 qemu_opt_set(fsdev, "security_model", security_model,
3494 &error_abort);
3495 }
3496 socket = qemu_opt_get(opts, "socket");
3497 if (socket) {
3498 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3499 }
3500 sock_fd = qemu_opt_get(opts, "sock_fd");
3501 if (sock_fd) {
3502 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3503 }
3504
3505 qemu_opt_set_bool(fsdev, "readonly",
3506 qemu_opt_get_bool(opts, "readonly", 0),
3507 &error_abort);
3508 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3509 &error_abort);
3510 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3511 qemu_opt_set(device, "fsdev",
3512 qemu_opts_id(fsdev), &error_abort);
3513 qemu_opt_set(device, "mount_tag",
3514 qemu_opt_get(opts, "mount_tag"), &error_abort);
3515 break;
3516 }
3517 case QEMU_OPTION_virtfs_synth: {
3518 QemuOpts *fsdev;
3519 QemuOpts *device;
3520
3521 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3522 1, NULL);
3523 if (!fsdev) {
3524 error_report("duplicate option: %s", "virtfs_synth");
3525 exit(1);
3526 }
3527 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3528
3529 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3530 &error_abort);
3531 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3532 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3533 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3534 break;
3535 }
3536 case QEMU_OPTION_serial:
3537 add_device_config(DEV_SERIAL, optarg);
3538 default_serial = 0;
3539 if (strncmp(optarg, "mon:", 4) == 0) {
3540 default_monitor = 0;
3541 }
3542 break;
3543 case QEMU_OPTION_watchdog:
3544 if (watchdog) {
3545 error_report("only one watchdog option may be given");
3546 return 1;
3547 }
3548 watchdog = optarg;
3549 break;
3550 case QEMU_OPTION_watchdog_action:
3551 if (select_watchdog_action(optarg) == -1) {
3552 error_report("unknown -watchdog-action parameter");
3553 exit(1);
3554 }
3555 break;
3556 case QEMU_OPTION_parallel:
3557 add_device_config(DEV_PARALLEL, optarg);
3558 default_parallel = 0;
3559 if (strncmp(optarg, "mon:", 4) == 0) {
3560 default_monitor = 0;
3561 }
3562 break;
3563 case QEMU_OPTION_debugcon:
3564 add_device_config(DEV_DEBUGCON, optarg);
3565 break;
3566 case QEMU_OPTION_loadvm:
3567 loadvm = optarg;
3568 break;
3569 case QEMU_OPTION_full_screen:
3570 dpy.has_full_screen = true;
3571 dpy.full_screen = true;
3572 break;
3573 case QEMU_OPTION_alt_grab:
3574 alt_grab = 1;
3575 break;
3576 case QEMU_OPTION_ctrl_grab:
3577 ctrl_grab = 1;
3578 break;
3579 case QEMU_OPTION_no_quit:
3580 dpy.has_window_close = true;
3581 dpy.window_close = false;
3582 break;
3583 case QEMU_OPTION_sdl:
3584 #ifdef CONFIG_SDL
3585 dpy.type = DISPLAY_TYPE_SDL;
3586 break;
3587 #else
3588 error_report("SDL support is disabled");
3589 exit(1);
3590 #endif
3591 case QEMU_OPTION_pidfile:
3592 pid_file = optarg;
3593 break;
3594 case QEMU_OPTION_win2k_hack:
3595 win2k_install_hack = 1;
3596 break;
3597 case QEMU_OPTION_acpitable:
3598 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3599 optarg, true);
3600 if (!opts) {
3601 exit(1);
3602 }
3603 acpi_table_add(opts, &error_fatal);
3604 break;
3605 case QEMU_OPTION_smbios:
3606 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3607 optarg, false);
3608 if (!opts) {
3609 exit(1);
3610 }
3611 smbios_entry_add(opts, &error_fatal);
3612 break;
3613 case QEMU_OPTION_fwcfg:
3614 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3615 optarg, true);
3616 if (opts == NULL) {
3617 exit(1);
3618 }
3619 break;
3620 case QEMU_OPTION_preconfig:
3621 preconfig_exit_requested = false;
3622 break;
3623 case QEMU_OPTION_enable_kvm:
3624 olist = qemu_find_opts("machine");
3625 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3626 break;
3627 case QEMU_OPTION_M:
3628 case QEMU_OPTION_machine:
3629 olist = qemu_find_opts("machine");
3630 opts = qemu_opts_parse_noisily(olist, optarg, true);
3631 if (!opts) {
3632 exit(1);
3633 }
3634 break;
3635 case QEMU_OPTION_no_kvm:
3636 olist = qemu_find_opts("machine");
3637 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3638 break;
3639 case QEMU_OPTION_accel:
3640 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3641 optarg, true);
3642 optarg = qemu_opt_get(accel_opts, "accel");
3643 if (!optarg || is_help_option(optarg)) {
3644 printf("Possible accelerators: kvm, xen, hax, tcg\n");
3645 exit(0);
3646 }
3647 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3648 false, &error_abort);
3649 qemu_opt_set(opts, "accel", optarg, &error_abort);
3650 break;
3651 case QEMU_OPTION_usb:
3652 olist = qemu_find_opts("machine");
3653 qemu_opts_parse_noisily(olist, "usb=on", false);
3654 break;
3655 case QEMU_OPTION_usbdevice:
3656 error_report("'-usbdevice' is deprecated, please use "
3657 "'-device usb-...' instead");
3658 olist = qemu_find_opts("machine");
3659 qemu_opts_parse_noisily(olist, "usb=on", false);
3660 add_device_config(DEV_USB, optarg);
3661 break;
3662 case QEMU_OPTION_device:
3663 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3664 optarg, true)) {
3665 exit(1);
3666 }
3667 break;
3668 case QEMU_OPTION_smp:
3669 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3670 optarg, true)) {
3671 exit(1);
3672 }
3673 break;
3674 case QEMU_OPTION_vnc:
3675 vnc_parse(optarg, &error_fatal);
3676 break;
3677 case QEMU_OPTION_no_acpi:
3678 acpi_enabled = 0;
3679 break;
3680 case QEMU_OPTION_no_hpet:
3681 no_hpet = 1;
3682 break;
3683 case QEMU_OPTION_no_reboot:
3684 no_reboot = 1;
3685 break;
3686 case QEMU_OPTION_no_shutdown:
3687 no_shutdown = 1;
3688 break;
3689 case QEMU_OPTION_show_cursor:
3690 cursor_hide = 0;
3691 break;
3692 case QEMU_OPTION_uuid:
3693 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3694 error_report("failed to parse UUID string: wrong format");
3695 exit(1);
3696 }
3697 qemu_uuid_set = true;
3698 break;
3699 case QEMU_OPTION_option_rom:
3700 if (nb_option_roms >= MAX_OPTION_ROMS) {
3701 error_report("too many option ROMs");
3702 exit(1);
3703 }
3704 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3705 optarg, true);
3706 if (!opts) {
3707 exit(1);
3708 }
3709 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3710 option_rom[nb_option_roms].bootindex =
3711 qemu_opt_get_number(opts, "bootindex", -1);
3712 if (!option_rom[nb_option_roms].name) {
3713 error_report("Option ROM file is not specified");
3714 exit(1);
3715 }
3716 nb_option_roms++;
3717 break;
3718 case QEMU_OPTION_semihosting:
3719 semihosting.enabled = true;
3720 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3721 break;
3722 case QEMU_OPTION_semihosting_config:
3723 semihosting.enabled = true;
3724 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3725 optarg, false);
3726 if (opts != NULL) {
3727 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3728 true);
3729 const char *target = qemu_opt_get(opts, "target");
3730 if (target != NULL) {
3731 if (strcmp("native", target) == 0) {
3732 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3733 } else if (strcmp("gdb", target) == 0) {
3734 semihosting.target = SEMIHOSTING_TARGET_GDB;
3735 } else if (strcmp("auto", target) == 0) {
3736 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3737 } else {
3738 error_report("unsupported semihosting-config %s",
3739 optarg);
3740 exit(1);
3741 }
3742 } else {
3743 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3744 }
3745 /* Set semihosting argument count and vector */
3746 qemu_opt_foreach(opts, add_semihosting_arg,
3747 &semihosting, NULL);
3748 } else {
3749 error_report("unsupported semihosting-config %s", optarg);
3750 exit(1);
3751 }
3752 break;
3753 case QEMU_OPTION_name:
3754 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3755 optarg, true);
3756 if (!opts) {
3757 exit(1);
3758 }
3759 break;
3760 case QEMU_OPTION_prom_env:
3761 if (nb_prom_envs >= MAX_PROM_ENVS) {
3762 error_report("too many prom variables");
3763 exit(1);
3764 }
3765 prom_envs[nb_prom_envs] = optarg;
3766 nb_prom_envs++;
3767 break;
3768 case QEMU_OPTION_old_param:
3769 old_param = 1;
3770 break;
3771 case QEMU_OPTION_rtc:
3772 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3773 false);
3774 if (!opts) {
3775 exit(1);
3776 }
3777 break;
3778 case QEMU_OPTION_tb_size:
3779 #ifndef CONFIG_TCG
3780 error_report("TCG is disabled");
3781 exit(1);
3782 #endif
3783 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3784 error_report("Invalid argument to -tb-size");
3785 exit(1);
3786 }
3787 break;
3788 case QEMU_OPTION_icount:
3789 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3790 optarg, true);
3791 if (!icount_opts) {
3792 exit(1);
3793 }
3794 break;
3795 case QEMU_OPTION_incoming:
3796 if (!incoming) {
3797 runstate_set(RUN_STATE_INMIGRATE);
3798 }
3799 incoming = optarg;
3800 break;
3801 case QEMU_OPTION_only_migratable:
3802 only_migratable = 1;
3803 break;
3804 case QEMU_OPTION_nodefaults:
3805 has_defaults = 0;
3806 break;
3807 case QEMU_OPTION_xen_domid:
3808 if (!(xen_available())) {
3809 error_report("Option not supported for this target");
3810 exit(1);
3811 }
3812 xen_domid = atoi(optarg);
3813 break;
3814 case QEMU_OPTION_xen_attach:
3815 if (!(xen_available())) {
3816 error_report("Option not supported for this target");
3817 exit(1);
3818 }
3819 xen_mode = XEN_ATTACH;
3820 break;
3821 case QEMU_OPTION_xen_domid_restrict:
3822 if (!(xen_available())) {
3823 error_report("Option not supported for this target");
3824 exit(1);
3825 }
3826 xen_domid_restrict = true;
3827 break;
3828 case QEMU_OPTION_trace:
3829 g_free(trace_file);
3830 trace_file = trace_opt_parse(optarg);
3831 break;
3832 case QEMU_OPTION_readconfig:
3833 {
3834 int ret = qemu_read_config_file(optarg);
3835 if (ret < 0) {
3836 error_report("read config %s: %s", optarg,
3837 strerror(-ret));
3838 exit(1);
3839 }
3840 break;
3841 }
3842 case QEMU_OPTION_spice:
3843 olist = qemu_find_opts("spice");
3844 if (!olist) {
3845 error_report("spice support is disabled");
3846 exit(1);
3847 }
3848 opts = qemu_opts_parse_noisily(olist, optarg, false);
3849 if (!opts) {
3850 exit(1);
3851 }
3852 display_remote++;
3853 break;
3854 case QEMU_OPTION_writeconfig:
3855 {
3856 FILE *fp;
3857 if (strcmp(optarg, "-") == 0) {
3858 fp = stdout;
3859 } else {
3860 fp = fopen(optarg, "w");
3861 if (fp == NULL) {
3862 error_report("open %s: %s", optarg,
3863 strerror(errno));
3864 exit(1);
3865 }
3866 }
3867 qemu_config_write(fp);
3868 if (fp != stdout) {
3869 fclose(fp);
3870 }
3871 break;
3872 }
3873 case QEMU_OPTION_qtest:
3874 qtest_chrdev = optarg;
3875 break;
3876 case QEMU_OPTION_qtest_log:
3877 qtest_log = optarg;
3878 break;
3879 case QEMU_OPTION_sandbox:
3880 #ifdef CONFIG_SECCOMP
3881 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3882 optarg, true);
3883 if (!opts) {
3884 exit(1);
3885 }
3886 #else
3887 error_report("-sandbox support is not enabled "
3888 "in this QEMU binary");
3889 exit(1);
3890 #endif
3891 break;
3892 case QEMU_OPTION_add_fd:
3893 #ifndef _WIN32
3894 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3895 optarg, false);
3896 if (!opts) {
3897 exit(1);
3898 }
3899 #else
3900 error_report("File descriptor passing is disabled on this "
3901 "platform");
3902 exit(1);
3903 #endif
3904 break;
3905 case QEMU_OPTION_object:
3906 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3907 optarg, true);
3908 if (!opts) {
3909 exit(1);
3910 }
3911 break;
3912 case QEMU_OPTION_realtime:
3913 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3914 optarg, false);
3915 if (!opts) {
3916 exit(1);
3917 }
3918 /* Don't override the -overcommit option if set */
3919 enable_mlock = enable_mlock ||
3920 qemu_opt_get_bool(opts, "mlock", true);
3921 break;
3922 case QEMU_OPTION_overcommit:
3923 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3924 optarg, false);
3925 if (!opts) {
3926 exit(1);
3927 }
3928 /* Don't override the -realtime option if set */
3929 enable_mlock = enable_mlock ||
3930 qemu_opt_get_bool(opts, "mem-lock", false);
3931 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3932 break;
3933 case QEMU_OPTION_msg:
3934 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3935 false);
3936 if (!opts) {
3937 exit(1);
3938 }
3939 configure_msg(opts);
3940 break;
3941 case QEMU_OPTION_dump_vmstate:
3942 if (vmstate_dump_file) {
3943 error_report("only one '-dump-vmstate' "
3944 "option may be given");
3945 exit(1);
3946 }
3947 vmstate_dump_file = fopen(optarg, "w");
3948 if (vmstate_dump_file == NULL) {
3949 error_report("open %s: %s", optarg, strerror(errno));
3950 exit(1);
3951 }
3952 break;
3953 case QEMU_OPTION_enable_sync_profile:
3954 qsp_enable();
3955 break;
3956 case QEMU_OPTION_nouserconfig:
3957 /* Nothing to be parsed here. Especially, do not error out below. */
3958 break;
3959 default:
3960 if (os_parse_cmd_args(popt->index, optarg)) {
3961 error_report("Option not supported in this build");
3962 exit(1);
3963 }
3964 }
3965 }
3966 }
3967 /*
3968 * Clear error location left behind by the loop.
3969 * Best done right after the loop. Do not insert code here!
3970 */
3971 loc_set_none();
3972
3973 user_register_global_props();
3974
3975 replay_configure(icount_opts);
3976
3977 if (incoming && !preconfig_exit_requested) {
3978 error_report("'preconfig' and 'incoming' options are "
3979 "mutually exclusive");
3980 exit(EXIT_FAILURE);
3981 }
3982
3983 configure_rtc(qemu_find_opts_singleton("rtc"));
3984
3985 machine_class = select_machine();
3986 object_set_machine_compat_props(machine_class->compat_props);
3987
3988 set_memory_options(&ram_slots, &maxram_size, machine_class);
3989
3990 os_daemonize();
3991 rcu_disable_atfork();
3992
3993 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3994 error_reportf_err(err, "cannot create PID file: ");
3995 exit(1);
3996 }
3997
3998 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3999 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4000
4001 if (qemu_init_main_loop(&main_loop_err)) {
4002 error_report_err(main_loop_err);
4003 exit(1);
4004 }
4005
4006 #ifdef CONFIG_SECCOMP
4007 olist = qemu_find_opts_err("sandbox", NULL);
4008 if (olist) {
4009 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4010 }
4011 #endif
4012
4013 qemu_opts_foreach(qemu_find_opts("name"),
4014 parse_name, NULL, &error_fatal);
4015
4016 #ifndef _WIN32
4017 qemu_opts_foreach(qemu_find_opts("add-fd"),
4018 parse_add_fd, NULL, &error_fatal);
4019
4020 qemu_opts_foreach(qemu_find_opts("add-fd"),
4021 cleanup_add_fd, NULL, &error_fatal);
4022 #endif
4023
4024 current_machine = MACHINE(object_new(object_class_get_name(
4025 OBJECT_CLASS(machine_class))));
4026 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4027 exit(0);
4028 }
4029 object_property_add_child(object_get_root(), "machine",
4030 OBJECT(current_machine), &error_abort);
4031 object_property_add_child(container_get(OBJECT(current_machine),
4032 "/unattached"),
4033 "sysbus", OBJECT(sysbus_get_default()),
4034 NULL);
4035
4036 if (machine_class->minimum_page_bits) {
4037 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4038 /* This would be a board error: specifying a minimum smaller than
4039 * a target's compile-time fixed setting.
4040 */
4041 g_assert_not_reached();
4042 }
4043 }
4044
4045 cpu_exec_init_all();
4046
4047 if (machine_class->hw_version) {
4048 qemu_set_hw_version(machine_class->hw_version);
4049 }
4050
4051 if (cpu_model && is_help_option(cpu_model)) {
4052 list_cpus(cpu_model);
4053 exit(0);
4054 }
4055
4056 if (!trace_init_backends()) {
4057 exit(1);
4058 }
4059 trace_init_file(trace_file);
4060
4061 /* Open the logfile at this point and set the log mask if necessary.
4062 */
4063 if (log_file) {
4064 qemu_set_log_filename(log_file, &error_fatal);
4065 }
4066
4067 if (log_mask) {
4068 int mask;
4069 mask = qemu_str_to_log_mask(log_mask);
4070 if (!mask) {
4071 qemu_print_log_usage(stdout);
4072 exit(1);
4073 }
4074 qemu_set_log(mask);
4075 } else {
4076 qemu_set_log(0);
4077 }
4078
4079 /* add configured firmware directories */
4080 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4081 for (i = 0; dirs[i] != NULL; i++) {
4082 qemu_add_data_dir(dirs[i]);
4083 }
4084 g_strfreev(dirs);
4085
4086 /* try to find datadir relative to the executable path */
4087 dir = os_find_datadir();
4088 qemu_add_data_dir(dir);
4089 g_free(dir);
4090
4091 /* add the datadir specified when building */
4092 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4093
4094 /* -L help lists the data directories and exits. */
4095 if (list_data_dirs) {
4096 for (i = 0; i < data_dir_idx; i++) {
4097 printf("%s\n", data_dir[i]);
4098 }
4099 exit(0);
4100 }
4101
4102 /* machine_class: default to UP */
4103 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4104 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4105 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4106
4107 /* default to machine_class->default_cpus */
4108 smp_cpus = machine_class->default_cpus;
4109 max_cpus = machine_class->default_cpus;
4110
4111 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4112
4113 /* sanity-check smp_cpus and max_cpus against machine_class */
4114 if (smp_cpus < machine_class->min_cpus) {
4115 error_report("Invalid SMP CPUs %d. The min CPUs "
4116 "supported by machine '%s' is %d", smp_cpus,
4117 machine_class->name, machine_class->min_cpus);
4118 exit(1);
4119 }
4120 if (max_cpus > machine_class->max_cpus) {
4121 error_report("Invalid SMP CPUs %d. The max CPUs "
4122 "supported by machine '%s' is %d", max_cpus,
4123 machine_class->name, machine_class->max_cpus);
4124 exit(1);
4125 }
4126
4127 /*
4128 * Get the default machine options from the machine if it is not already
4129 * specified either by the configuration file or by the command line.
4130 */
4131 if (machine_class->default_machine_opts) {
4132 qemu_opts_set_defaults(qemu_find_opts("machine"),
4133 machine_class->default_machine_opts, 0);
4134 }
4135
4136 qemu_opts_foreach(qemu_find_opts("device"),
4137 default_driver_check, NULL, NULL);
4138 qemu_opts_foreach(qemu_find_opts("global"),
4139 default_driver_check, NULL, NULL);
4140
4141 if (!vga_model && !default_vga) {
4142 vga_interface_type = VGA_DEVICE;
4143 }
4144 if (!has_defaults || machine_class->no_serial) {
4145 default_serial = 0;
4146 }
4147 if (!has_defaults || machine_class->no_parallel) {
4148 default_parallel = 0;
4149 }
4150 if (!has_defaults || machine_class->no_floppy) {
4151 default_floppy = 0;
4152 }
4153 if (!has_defaults || machine_class->no_cdrom) {
4154 default_cdrom = 0;
4155 }
4156 if (!has_defaults || machine_class->no_sdcard) {
4157 default_sdcard = 0;
4158 }
4159 if (!has_defaults) {
4160 default_monitor = 0;
4161 default_net = 0;
4162 default_vga = 0;
4163 }
4164
4165 if (is_daemonized()) {
4166 if (!preconfig_exit_requested) {
4167 error_report("'preconfig' and 'daemonize' options are "
4168 "mutually exclusive");
4169 exit(EXIT_FAILURE);
4170 }
4171
4172 /* According to documentation and historically, -nographic redirects
4173 * serial port, parallel port and monitor to stdio, which does not work
4174 * with -daemonize. We can redirect these to null instead, but since
4175 * -nographic is legacy, let's just error out.
4176 * We disallow -nographic only if all other ports are not redirected
4177 * explicitly, to not break existing legacy setups which uses
4178 * -nographic _and_ redirects all ports explicitly - this is valid
4179 * usage, -nographic is just a no-op in this case.
4180 */
4181 if (nographic
4182 && (default_parallel || default_serial || default_monitor)) {
4183 error_report("-nographic cannot be used with -daemonize");
4184 exit(1);
4185 }
4186 #ifdef CONFIG_CURSES
4187 if (dpy.type == DISPLAY_TYPE_CURSES) {
4188 error_report("curses display cannot be used with -daemonize");
4189 exit(1);
4190 }
4191 #endif
4192 }
4193
4194 if (nographic) {
4195 if (default_parallel)
4196 add_device_config(DEV_PARALLEL, "null");
4197 if (default_serial && default_monitor) {
4198 add_device_config(DEV_SERIAL, "mon:stdio");
4199 } else {
4200 if (default_serial)
4201 add_device_config(DEV_SERIAL, "stdio");
4202 if (default_monitor)
4203 monitor_parse("stdio", "readline", false);
4204 }
4205 } else {
4206 if (default_serial)
4207 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4208 if (default_parallel)
4209 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4210 if (default_monitor)
4211 monitor_parse("vc:80Cx24C", "readline", false);
4212 }
4213
4214 #if defined(CONFIG_VNC)
4215 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4216 display_remote++;
4217 }
4218 #endif
4219 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4220 if (!qemu_display_find_default(&dpy)) {
4221 dpy.type = DISPLAY_TYPE_NONE;
4222 #if defined(CONFIG_VNC)
4223 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4224 #endif
4225 }
4226 }
4227 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4228 dpy.type = DISPLAY_TYPE_NONE;
4229 }
4230
4231 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4232 error_report("-alt-grab and -ctrl-grab are only valid "
4233 "for SDL, ignoring option");
4234 }
4235 if (dpy.has_window_close &&
4236 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4237 error_report("-no-quit is only valid for GTK and SDL, "
4238 "ignoring option");
4239 }
4240
4241 qemu_display_early_init(&dpy);
4242 qemu_console_early_init();
4243
4244 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4245 #if defined(CONFIG_OPENGL)
4246 error_report("OpenGL is not supported by the display");
4247 #else
4248 error_report("OpenGL support is disabled");
4249 #endif
4250 exit(1);
4251 }
4252
4253 page_size_init();
4254 socket_init();
4255
4256 qemu_opts_foreach(qemu_find_opts("object"),
4257 user_creatable_add_opts_foreach,
4258 object_create_initial, &error_fatal);
4259
4260 qemu_opts_foreach(qemu_find_opts("chardev"),
4261 chardev_init_func, NULL, &error_fatal);
4262
4263 #ifdef CONFIG_VIRTFS
4264 qemu_opts_foreach(qemu_find_opts("fsdev"),
4265 fsdev_init_func, NULL, &error_fatal);
4266 #endif
4267
4268 if (qemu_opts_foreach(qemu_find_opts("device"),
4269 device_help_func, NULL, NULL)) {
4270 exit(0);
4271 }
4272
4273 /*
4274 * Note: we need to create block backends before
4275 * machine_set_property(), so machine properties can refer to
4276 * them.
4277 */
4278 configure_blockdev(&bdo_queue, machine_class, snapshot);
4279
4280 machine_opts = qemu_get_machine_opts();
4281 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4282 &error_fatal);
4283 current_machine->ram_size = ram_size;
4284 current_machine->maxram_size = maxram_size;
4285 current_machine->ram_slots = ram_slots;
4286
4287 /*
4288 * Note: uses machine properties such as kernel-irqchip, must run
4289 * after machine_set_property().
4290 */
4291 configure_accelerator(current_machine, argv[0]);
4292
4293 /*
4294 * Beware, QOM objects created before this point miss global and
4295 * compat properties.
4296 *
4297 * Global properties get set up by qdev_prop_register_global(),
4298 * called from user_register_global_props(), and certain option
4299 * desugaring. Also in CPU feature desugaring (buried in
4300 * parse_cpu_model()), which happens below this point, but may
4301 * only target the CPU type, which can only be created after
4302 * parse_cpu_model() returned the type.
4303 *
4304 * Machine compat properties: object_set_machine_compat_props().
4305 * Accelerator compat props: object_set_accelerator_compat_props(),
4306 * called from configure_accelerator().
4307 */
4308
4309 if (!qtest_enabled() && machine_class->deprecation_reason) {
4310 error_report("Machine type '%s' is deprecated: %s",
4311 machine_class->name, machine_class->deprecation_reason);
4312 }
4313
4314 /*
4315 * Note: creates a QOM object, must run only after global and
4316 * compat properties have been set up.
4317 */
4318 migration_object_init();
4319
4320 if (qtest_chrdev) {
4321 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4322 }
4323
4324 machine_opts = qemu_get_machine_opts();
4325 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4326 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4327 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4328 bios_name = qemu_opt_get(machine_opts, "firmware");
4329
4330 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4331 if (opts) {
4332 boot_order = qemu_opt_get(opts, "order");
4333 if (boot_order) {
4334 validate_bootdevices(boot_order, &error_fatal);
4335 }
4336
4337 boot_once = qemu_opt_get(opts, "once");
4338 if (boot_once) {
4339 validate_bootdevices(boot_once, &error_fatal);
4340 }
4341
4342 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4343 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4344 }
4345
4346 if (!boot_order) {
4347 boot_order = machine_class->default_boot_order;
4348 }
4349
4350 if (!kernel_cmdline) {
4351 kernel_cmdline = "";
4352 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4353 }
4354
4355 linux_boot = (kernel_filename != NULL);
4356
4357 if (!linux_boot && *kernel_cmdline != '\0') {
4358 error_report("-append only allowed with -kernel option");
4359 exit(1);
4360 }
4361
4362 if (!linux_boot && initrd_filename != NULL) {
4363 error_report("-initrd only allowed with -kernel option");
4364 exit(1);
4365 }
4366
4367 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4368 /* fall back to the -kernel/-append */
4369 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4370 }
4371
4372 os_set_line_buffering();
4373
4374 /* spice needs the timers to be initialized by this point */
4375 qemu_spice_init();
4376
4377 cpu_ticks_init();
4378 if (icount_opts) {
4379 if (!tcg_enabled()) {
4380 error_report("-icount is not allowed with hardware virtualization");
4381 exit(1);
4382 }
4383 configure_icount(icount_opts, &error_abort);
4384 qemu_opts_del(icount_opts);
4385 }
4386
4387 if (tcg_enabled()) {
4388 qemu_tcg_configure(accel_opts, &error_fatal);
4389 }
4390
4391 if (default_net) {
4392 QemuOptsList *net = qemu_find_opts("net");
4393 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4394 #ifdef CONFIG_SLIRP
4395 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4396 #endif
4397 }
4398
4399 if (net_init_clients(&err) < 0) {
4400 error_report_err(err);
4401 exit(1);
4402 }
4403
4404 qemu_opts_foreach(qemu_find_opts("object"),
4405 user_creatable_add_opts_foreach,
4406 object_create_delayed, &error_fatal);
4407
4408 tpm_init();
4409
4410 /* init the bluetooth world */
4411 if (foreach_device_config(DEV_BT, bt_parse))
4412 exit(1);
4413
4414 if (!xen_enabled()) {
4415 /* On 32-bit hosts, QEMU is limited by virtual address space */
4416 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4417 error_report("at most 2047 MB RAM can be simulated");
4418 exit(1);
4419 }
4420 }
4421
4422 blk_mig_init();
4423 ram_mig_init();
4424 dirty_bitmap_mig_init();
4425
4426 qemu_opts_foreach(qemu_find_opts("mon"),
4427 mon_init_func, NULL, &error_fatal);
4428
4429 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4430 exit(1);
4431 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4432 exit(1);
4433 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4434 exit(1);
4435
4436 /* If no default VGA is requested, the default is "none". */
4437 if (default_vga) {
4438 if (machine_class->default_display) {
4439 vga_model = machine_class->default_display;
4440 } else if (vga_interface_available(VGA_CIRRUS)) {
4441 vga_model = "cirrus";
4442 } else if (vga_interface_available(VGA_STD)) {
4443 vga_model = "std";
4444 }
4445 }
4446 if (vga_model) {
4447 select_vgahw(vga_model);
4448 }
4449
4450 if (watchdog) {
4451 i = select_watchdog(watchdog);
4452 if (i > 0)
4453 exit (i == 1 ? 1 : 0);
4454 }
4455
4456 /* This checkpoint is required by replay to separate prior clock
4457 reading from the other reads, because timer polling functions query
4458 clock values from the log. */
4459 replay_checkpoint(CHECKPOINT_INIT);
4460 qdev_machine_init();
4461
4462 current_machine->boot_order = boot_order;
4463
4464 /* parse features once if machine provides default cpu_type */
4465 current_machine->cpu_type = machine_class->default_cpu_type;
4466 if (cpu_model) {
4467 current_machine->cpu_type = parse_cpu_model(cpu_model);
4468 }
4469 parse_numa_opts(current_machine);
4470
4471 /* do monitor/qmp handling at preconfig state if requested */
4472 main_loop();
4473
4474 audio_init_audiodevs();
4475
4476 /* from here on runstate is RUN_STATE_PRELAUNCH */
4477 machine_run_board_init(current_machine);
4478
4479 realtime_init();
4480
4481 soundhw_init();
4482
4483 if (hax_enabled()) {
4484 hax_sync_vcpus();
4485 }
4486
4487 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4488 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4489
4490 /* init USB devices */
4491 if (machine_usb(current_machine)) {
4492 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4493 exit(1);
4494 }
4495
4496 /* Check if IGD GFX passthrough. */
4497 igd_gfx_passthru();
4498
4499 /* init generic devices */
4500 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4501 qemu_opts_foreach(qemu_find_opts("device"),
4502 device_init_func, NULL, &error_fatal);
4503
4504 cpu_synchronize_all_post_init();
4505
4506 rom_reset_order_override();
4507
4508 /* Did we create any drives that we failed to create a device for? */
4509 drive_check_orphaned();
4510
4511 /* Don't warn about the default network setup that you get if
4512 * no command line -net or -netdev options are specified. There
4513 * are two cases that we would otherwise complain about:
4514 * (1) board doesn't support a NIC but the implicit "-net nic"
4515 * requested one
4516 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4517 * sets up a nic that isn't connected to anything.
4518 */
4519 if (!default_net && (!qtest_enabled() || has_defaults)) {
4520 net_check_clients();
4521 }
4522
4523 if (boot_once) {
4524 qemu_boot_set(boot_once, &error_fatal);
4525 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4526 }
4527
4528 /* init local displays */
4529 ds = init_displaystate();
4530 qemu_display_init(ds, &dpy);
4531
4532 /* must be after terminal init, SDL library changes signal handlers */
4533 os_setup_signal_handling();
4534
4535 /* init remote displays */
4536 #ifdef CONFIG_VNC
4537 qemu_opts_foreach(qemu_find_opts("vnc"),
4538 vnc_init_func, NULL, &error_fatal);
4539 #endif
4540
4541 if (using_spice) {
4542 qemu_spice_display_init();
4543 }
4544
4545 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4546 exit(1);
4547 }
4548
4549 qdev_machine_creation_done();
4550
4551 /* TODO: once all bus devices are qdevified, this should be done
4552 * when bus is created by qdev.c */
4553 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4554 qemu_run_machine_init_done_notifiers();
4555
4556 if (rom_check_and_register_reset() != 0) {
4557 error_report("rom check and register reset failed");
4558 exit(1);
4559 }
4560
4561 replay_start();
4562
4563 /* This checkpoint is required by replay to separate prior clock
4564 reading from the other reads, because timer polling functions query
4565 clock values from the log. */
4566 replay_checkpoint(CHECKPOINT_RESET);
4567 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4568 register_global_state();
4569 if (loadvm) {
4570 Error *local_err = NULL;
4571 if (load_snapshot(loadvm, &local_err) < 0) {
4572 error_report_err(local_err);
4573 autostart = 0;
4574 exit(1);
4575 }
4576 }
4577 if (replay_mode != REPLAY_MODE_NONE) {
4578 replay_vmstate_init();
4579 }
4580
4581 qdev_prop_check_globals();
4582 if (vmstate_dump_file) {
4583 /* dump and exit */
4584 dump_vmstate_json_to_file(vmstate_dump_file);
4585 return 0;
4586 }
4587
4588 if (incoming) {
4589 Error *local_err = NULL;
4590 qemu_start_incoming_migration(incoming, &local_err);
4591 if (local_err) {
4592 error_reportf_err(local_err, "-incoming %s: ", incoming);
4593 exit(1);
4594 }
4595 } else if (autostart) {
4596 vm_start();
4597 }
4598
4599 accel_setup_post(current_machine);
4600 os_setup_post();
4601
4602 main_loop();
4603
4604 gdbserver_cleanup();
4605
4606 /*
4607 * cleaning up the migration object cancels any existing migration
4608 * try to do this early so that it also stops using devices.
4609 */
4610 migration_shutdown();
4611
4612 /* No more vcpu or device emulation activity beyond this point */
4613 vm_shutdown();
4614
4615 job_cancel_sync_all();
4616 bdrv_close_all();
4617
4618 res_free();
4619
4620 /* vhost-user must be cleaned up before chardevs. */
4621 tpm_cleanup();
4622 net_cleanup();
4623 audio_cleanup();
4624 monitor_cleanup();
4625 qemu_chr_cleanup();
4626 user_creatable_cleanup();
4627 /* TODO: unref root container, check all devices are ok */
4628
4629 return 0;
4630 }
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