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vhost-user: support cross-endian vnet headers
[qemu.git] / vl.c
blob502857a1769f4b9eacbcb17cba0d5d5285e6b11a
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
110 #include "slirp/libslirp.h"
111
112 #include "trace-root.h"
113 #include "trace/control.h"
114 #include "qemu/queue.h"
115 #include "sysemu/arch_init.h"
116
117 #include "ui/qemu-spice.h"
118 #include "qapi/string-input-visitor.h"
119 #include "qapi/opts-visitor.h"
120 #include "qapi/clone-visitor.h"
121 #include "qom/object_interfaces.h"
122 #include "exec/semihost.h"
123 #include "crypto/init.h"
124 #include "sysemu/replay.h"
125 #include "qapi/qapi-events-run-state.h"
126 #include "qapi/qapi-visit-block-core.h"
127 #include "qapi/qapi-visit-ui.h"
128 #include "qapi/qapi-commands-block-core.h"
129 #include "qapi/qapi-commands-misc.h"
130 #include "qapi/qapi-commands-run-state.h"
131 #include "qapi/qapi-commands-ui.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134
135 #define MAX_VIRTIO_CONSOLES 1
136
137 static const char *data_dir[16];
138 static int data_dir_idx;
139 const char *bios_name = NULL;
140 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
141 int display_opengl;
142 const char* keyboard_layout = NULL;
143 ram_addr_t ram_size;
144 const char *mem_path = NULL;
145 int mem_prealloc = 0; /* force preallocation of physical target memory */
146 bool enable_mlock = false;
147 bool enable_cpu_pm = false;
148 int nb_nics;
149 NICInfo nd_table[MAX_NICS];
150 int autostart;
151 static enum {
152 RTC_BASE_UTC,
153 RTC_BASE_LOCALTIME,
154 RTC_BASE_DATETIME,
155 } rtc_base_type = RTC_BASE_UTC;
156 static time_t rtc_ref_start_datetime;
157 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
158 static int rtc_host_datetime_offset = -1; /* valid & used only with
159 RTC_BASE_DATETIME */
160 QEMUClockType rtc_clock;
161 int vga_interface_type = VGA_NONE;
162 static DisplayOptions dpy;
163 static int num_serial_hds;
164 static Chardev **serial_hds;
165 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
166 int win2k_install_hack = 0;
167 int singlestep = 0;
168 int smp_cpus;
169 unsigned int max_cpus;
170 int smp_cores = 1;
171 int smp_threads = 1;
172 int acpi_enabled = 1;
173 int no_hpet = 0;
174 int fd_bootchk = 1;
175 static int no_reboot;
176 int no_shutdown = 0;
177 int cursor_hide = 1;
178 int graphic_rotate = 0;
179 const char *watchdog;
180 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
181 int nb_option_roms;
182 int old_param = 0;
183 const char *qemu_name;
184 int alt_grab = 0;
185 int ctrl_grab = 0;
186 unsigned int nb_prom_envs = 0;
187 const char *prom_envs[MAX_PROM_ENVS];
188 int boot_menu;
189 bool boot_strict;
190 uint8_t *boot_splash_filedata;
191 size_t boot_splash_filedata_size;
192 bool wakeup_suspend_enabled;
193
194 int icount_align_option;
195
196 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
197 * little-endian "wire format" described in the SMBIOS 2.6 specification.
198 */
199 QemuUUID qemu_uuid;
200 bool qemu_uuid_set;
201
202 static NotifierList exit_notifiers =
203 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
204
205 static NotifierList machine_init_done_notifiers =
206 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
207
208 bool xen_allowed;
209 uint32_t xen_domid;
210 enum xen_mode xen_mode = XEN_EMULATE;
211 bool xen_domid_restrict;
212
213 static int has_defaults = 1;
214 static int default_serial = 1;
215 static int default_parallel = 1;
216 static int default_monitor = 1;
217 static int default_floppy = 1;
218 static int default_cdrom = 1;
219 static int default_sdcard = 1;
220 static int default_vga = 1;
221 static int default_net = 1;
222
223 static struct {
224 const char *driver;
225 int *flag;
226 } default_list[] = {
227 { .driver = "isa-serial", .flag = &default_serial },
228 { .driver = "isa-parallel", .flag = &default_parallel },
229 { .driver = "isa-fdc", .flag = &default_floppy },
230 { .driver = "floppy", .flag = &default_floppy },
231 { .driver = "ide-cd", .flag = &default_cdrom },
232 { .driver = "ide-hd", .flag = &default_cdrom },
233 { .driver = "ide-drive", .flag = &default_cdrom },
234 { .driver = "scsi-cd", .flag = &default_cdrom },
235 { .driver = "scsi-hd", .flag = &default_cdrom },
236 { .driver = "VGA", .flag = &default_vga },
237 { .driver = "isa-vga", .flag = &default_vga },
238 { .driver = "cirrus-vga", .flag = &default_vga },
239 { .driver = "isa-cirrus-vga", .flag = &default_vga },
240 { .driver = "vmware-svga", .flag = &default_vga },
241 { .driver = "qxl-vga", .flag = &default_vga },
242 { .driver = "virtio-vga", .flag = &default_vga },
243 };
244
245 static QemuOptsList qemu_rtc_opts = {
246 .name = "rtc",
247 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
248 .merge_lists = true,
249 .desc = {
250 {
251 .name = "base",
252 .type = QEMU_OPT_STRING,
253 },{
254 .name = "clock",
255 .type = QEMU_OPT_STRING,
256 },{
257 .name = "driftfix",
258 .type = QEMU_OPT_STRING,
259 },
260 { /* end of list */ }
261 },
262 };
263
264 static QemuOptsList qemu_option_rom_opts = {
265 .name = "option-rom",
266 .implied_opt_name = "romfile",
267 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
268 .desc = {
269 {
270 .name = "bootindex",
271 .type = QEMU_OPT_NUMBER,
272 }, {
273 .name = "romfile",
274 .type = QEMU_OPT_STRING,
275 },
276 { /* end of list */ }
277 },
278 };
279
280 static QemuOptsList qemu_machine_opts = {
281 .name = "machine",
282 .implied_opt_name = "type",
283 .merge_lists = true,
284 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
285 .desc = {
286 /*
287 * no elements => accept any
288 * sanity checking will happen later
289 * when setting machine properties
290 */
291 { }
292 },
293 };
294
295 static QemuOptsList qemu_accel_opts = {
296 .name = "accel",
297 .implied_opt_name = "accel",
298 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
299 .merge_lists = true,
300 .desc = {
301 {
302 .name = "accel",
303 .type = QEMU_OPT_STRING,
304 .help = "Select the type of accelerator",
305 },
306 {
307 .name = "thread",
308 .type = QEMU_OPT_STRING,
309 .help = "Enable/disable multi-threaded TCG",
310 },
311 { /* end of list */ }
312 },
313 };
314
315 static QemuOptsList qemu_boot_opts = {
316 .name = "boot-opts",
317 .implied_opt_name = "order",
318 .merge_lists = true,
319 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
320 .desc = {
321 {
322 .name = "order",
323 .type = QEMU_OPT_STRING,
324 }, {
325 .name = "once",
326 .type = QEMU_OPT_STRING,
327 }, {
328 .name = "menu",
329 .type = QEMU_OPT_BOOL,
330 }, {
331 .name = "splash",
332 .type = QEMU_OPT_STRING,
333 }, {
334 .name = "splash-time",
335 .type = QEMU_OPT_NUMBER,
336 }, {
337 .name = "reboot-timeout",
338 .type = QEMU_OPT_NUMBER,
339 }, {
340 .name = "strict",
341 .type = QEMU_OPT_BOOL,
342 },
343 { /*End of list */ }
344 },
345 };
346
347 static QemuOptsList qemu_add_fd_opts = {
348 .name = "add-fd",
349 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
350 .desc = {
351 {
352 .name = "fd",
353 .type = QEMU_OPT_NUMBER,
354 .help = "file descriptor of which a duplicate is added to fd set",
355 },{
356 .name = "set",
357 .type = QEMU_OPT_NUMBER,
358 .help = "ID of the fd set to add fd to",
359 },{
360 .name = "opaque",
361 .type = QEMU_OPT_STRING,
362 .help = "free-form string used to describe fd",
363 },
364 { /* end of list */ }
365 },
366 };
367
368 static QemuOptsList qemu_object_opts = {
369 .name = "object",
370 .implied_opt_name = "qom-type",
371 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
372 .desc = {
373 { }
374 },
375 };
376
377 static QemuOptsList qemu_tpmdev_opts = {
378 .name = "tpmdev",
379 .implied_opt_name = "type",
380 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
381 .desc = {
382 /* options are defined in the TPM backends */
383 { /* end of list */ }
384 },
385 };
386
387 static QemuOptsList qemu_realtime_opts = {
388 .name = "realtime",
389 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
390 .desc = {
391 {
392 .name = "mlock",
393 .type = QEMU_OPT_BOOL,
394 },
395 { /* end of list */ }
396 },
397 };
398
399 static QemuOptsList qemu_overcommit_opts = {
400 .name = "overcommit",
401 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
402 .desc = {
403 {
404 .name = "mem-lock",
405 .type = QEMU_OPT_BOOL,
406 },
407 {
408 .name = "cpu-pm",
409 .type = QEMU_OPT_BOOL,
410 },
411 { /* end of list */ }
412 },
413 };
414
415 static QemuOptsList qemu_msg_opts = {
416 .name = "msg",
417 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
418 .desc = {
419 {
420 .name = "timestamp",
421 .type = QEMU_OPT_BOOL,
422 },
423 { /* end of list */ }
424 },
425 };
426
427 static QemuOptsList qemu_name_opts = {
428 .name = "name",
429 .implied_opt_name = "guest",
430 .merge_lists = true,
431 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
432 .desc = {
433 {
434 .name = "guest",
435 .type = QEMU_OPT_STRING,
436 .help = "Sets the name of the guest.\n"
437 "This name will be displayed in the SDL window caption.\n"
438 "The name will also be used for the VNC server",
439 }, {
440 .name = "process",
441 .type = QEMU_OPT_STRING,
442 .help = "Sets the name of the QEMU process, as shown in top etc",
443 }, {
444 .name = "debug-threads",
445 .type = QEMU_OPT_BOOL,
446 .help = "When enabled, name the individual threads; defaults off.\n"
447 "NOTE: The thread names are for debugging and not a\n"
448 "stable API.",
449 },
450 { /* End of list */ }
451 },
452 };
453
454 static QemuOptsList qemu_mem_opts = {
455 .name = "memory",
456 .implied_opt_name = "size",
457 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
458 .merge_lists = true,
459 .desc = {
460 {
461 .name = "size",
462 .type = QEMU_OPT_SIZE,
463 },
464 {
465 .name = "slots",
466 .type = QEMU_OPT_NUMBER,
467 },
468 {
469 .name = "maxmem",
470 .type = QEMU_OPT_SIZE,
471 },
472 { /* end of list */ }
473 },
474 };
475
476 static QemuOptsList qemu_icount_opts = {
477 .name = "icount",
478 .implied_opt_name = "shift",
479 .merge_lists = true,
480 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
481 .desc = {
482 {
483 .name = "shift",
484 .type = QEMU_OPT_STRING,
485 }, {
486 .name = "align",
487 .type = QEMU_OPT_BOOL,
488 }, {
489 .name = "sleep",
490 .type = QEMU_OPT_BOOL,
491 }, {
492 .name = "rr",
493 .type = QEMU_OPT_STRING,
494 }, {
495 .name = "rrfile",
496 .type = QEMU_OPT_STRING,
497 }, {
498 .name = "rrsnapshot",
499 .type = QEMU_OPT_STRING,
500 },
501 { /* end of list */ }
502 },
503 };
504
505 static QemuOptsList qemu_semihosting_config_opts = {
506 .name = "semihosting-config",
507 .implied_opt_name = "enable",
508 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
509 .desc = {
510 {
511 .name = "enable",
512 .type = QEMU_OPT_BOOL,
513 }, {
514 .name = "target",
515 .type = QEMU_OPT_STRING,
516 }, {
517 .name = "arg",
518 .type = QEMU_OPT_STRING,
519 },
520 { /* end of list */ }
521 },
522 };
523
524 static QemuOptsList qemu_fw_cfg_opts = {
525 .name = "fw_cfg",
526 .implied_opt_name = "name",
527 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
528 .desc = {
529 {
530 .name = "name",
531 .type = QEMU_OPT_STRING,
532 .help = "Sets the fw_cfg name of the blob to be inserted",
533 }, {
534 .name = "file",
535 .type = QEMU_OPT_STRING,
536 .help = "Sets the name of the file from which "
537 "the fw_cfg blob will be loaded",
538 }, {
539 .name = "string",
540 .type = QEMU_OPT_STRING,
541 .help = "Sets content of the blob to be inserted from a string",
542 },
543 { /* end of list */ }
544 },
545 };
546
547 /**
548 * Get machine options
549 *
550 * Returns: machine options (never null).
551 */
552 QemuOpts *qemu_get_machine_opts(void)
553 {
554 return qemu_find_opts_singleton("machine");
555 }
556
557 const char *qemu_get_vm_name(void)
558 {
559 return qemu_name;
560 }
561
562 static void res_free(void)
563 {
564 g_free(boot_splash_filedata);
565 boot_splash_filedata = NULL;
566 }
567
568 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
569 {
570 const char *driver = qemu_opt_get(opts, "driver");
571 int i;
572
573 if (!driver)
574 return 0;
575 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
576 if (strcmp(default_list[i].driver, driver) != 0)
577 continue;
578 *(default_list[i].flag) = 0;
579 }
580 return 0;
581 }
582
583 /***********************************************************/
584 /* QEMU state */
585
586 static RunState current_run_state = RUN_STATE_PRECONFIG;
587
588 /* We use RUN_STATE__MAX but any invalid value will do */
589 static RunState vmstop_requested = RUN_STATE__MAX;
590 static QemuMutex vmstop_lock;
591
592 typedef struct {
593 RunState from;
594 RunState to;
595 } RunStateTransition;
596
597 static const RunStateTransition runstate_transitions_def[] = {
598 /* from -> to */
599 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
600 /* Early switch to inmigrate state to allow -incoming CLI option work
601 * as it used to. TODO: delay actual switching to inmigrate state to
602 * the point after machine is built and remove this hack.
603 */
604 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
605
606 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
607 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
608 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
609
610 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
611 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
612 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
613 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
614 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
615 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
616 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
617 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
618 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
619 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
620 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
621 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
622
623 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
624 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
625 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
626
627 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
628 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
630
631 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
632 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
634 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
635 { RUN_STATE_PAUSED, RUN_STATE_COLO},
636
637 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
638 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
640
641 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
642 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
644
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
648 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
650
651 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
652 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
653
654 { RUN_STATE_COLO, RUN_STATE_RUNNING },
655
656 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
657 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
658 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
659 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
660 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
661 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
662 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
663 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
664 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
665 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
666 { RUN_STATE_RUNNING, RUN_STATE_COLO},
667
668 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
669
670 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
671 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
672 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
673
674 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
675 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
676 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
677 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
678 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
679 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
680
681 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
682 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
683 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
684 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
685
686 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
687 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
688 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
689
690 { RUN_STATE__MAX, RUN_STATE__MAX },
691 };
692
693 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
694
695 bool runstate_check(RunState state)
696 {
697 return current_run_state == state;
698 }
699
700 bool runstate_store(char *str, size_t size)
701 {
702 const char *state = RunState_str(current_run_state);
703 size_t len = strlen(state) + 1;
704
705 if (len > size) {
706 return false;
707 }
708 memcpy(str, state, len);
709 return true;
710 }
711
712 static void runstate_init(void)
713 {
714 const RunStateTransition *p;
715
716 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
717 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
718 runstate_valid_transitions[p->from][p->to] = true;
719 }
720
721 qemu_mutex_init(&vmstop_lock);
722 }
723
724 /* This function will abort() on invalid state transitions */
725 void runstate_set(RunState new_state)
726 {
727 assert(new_state < RUN_STATE__MAX);
728
729 trace_runstate_set(current_run_state, RunState_str(current_run_state),
730 new_state, RunState_str(current_run_state));
731
732 if (current_run_state == new_state) {
733 return;
734 }
735
736 if (!runstate_valid_transitions[current_run_state][new_state]) {
737 error_report("invalid runstate transition: '%s' -> '%s'",
738 RunState_str(current_run_state),
739 RunState_str(new_state));
740 abort();
741 }
742
743 current_run_state = new_state;
744 }
745
746 int runstate_is_running(void)
747 {
748 return runstate_check(RUN_STATE_RUNNING);
749 }
750
751 bool runstate_needs_reset(void)
752 {
753 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
754 runstate_check(RUN_STATE_SHUTDOWN);
755 }
756
757 StatusInfo *qmp_query_status(Error **errp)
758 {
759 StatusInfo *info = g_malloc0(sizeof(*info));
760
761 info->running = runstate_is_running();
762 info->singlestep = singlestep;
763 info->status = current_run_state;
764
765 return info;
766 }
767
768 bool qemu_vmstop_requested(RunState *r)
769 {
770 qemu_mutex_lock(&vmstop_lock);
771 *r = vmstop_requested;
772 vmstop_requested = RUN_STATE__MAX;
773 qemu_mutex_unlock(&vmstop_lock);
774 return *r < RUN_STATE__MAX;
775 }
776
777 void qemu_system_vmstop_request_prepare(void)
778 {
779 qemu_mutex_lock(&vmstop_lock);
780 }
781
782 void qemu_system_vmstop_request(RunState state)
783 {
784 vmstop_requested = state;
785 qemu_mutex_unlock(&vmstop_lock);
786 qemu_notify_event();
787 }
788
789 /***********************************************************/
790 /* RTC reference time/date access */
791 static time_t qemu_ref_timedate(QEMUClockType clock)
792 {
793 time_t value = qemu_clock_get_ms(clock) / 1000;
794 switch (clock) {
795 case QEMU_CLOCK_REALTIME:
796 value -= rtc_realtime_clock_offset;
797 /* no break */
798 case QEMU_CLOCK_VIRTUAL:
799 value += rtc_ref_start_datetime;
800 break;
801 case QEMU_CLOCK_HOST:
802 if (rtc_base_type == RTC_BASE_DATETIME) {
803 value -= rtc_host_datetime_offset;
804 }
805 break;
806 default:
807 assert(0);
808 }
809 return value;
810 }
811
812 void qemu_get_timedate(struct tm *tm, int offset)
813 {
814 time_t ti = qemu_ref_timedate(rtc_clock);
815
816 ti += offset;
817
818 switch (rtc_base_type) {
819 case RTC_BASE_DATETIME:
820 case RTC_BASE_UTC:
821 gmtime_r(&ti, tm);
822 break;
823 case RTC_BASE_LOCALTIME:
824 localtime_r(&ti, tm);
825 break;
826 }
827 }
828
829 int qemu_timedate_diff(struct tm *tm)
830 {
831 time_t seconds;
832
833 switch (rtc_base_type) {
834 case RTC_BASE_DATETIME:
835 case RTC_BASE_UTC:
836 seconds = mktimegm(tm);
837 break;
838 case RTC_BASE_LOCALTIME:
839 {
840 struct tm tmp = *tm;
841 tmp.tm_isdst = -1; /* use timezone to figure it out */
842 seconds = mktime(&tmp);
843 break;
844 }
845 default:
846 abort();
847 }
848
849 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
850 }
851
852 static void configure_rtc_base_datetime(const char *startdate)
853 {
854 time_t rtc_start_datetime;
855 struct tm tm;
856
857 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
858 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
859 /* OK */
860 } else if (sscanf(startdate, "%d-%d-%d",
861 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
862 tm.tm_hour = 0;
863 tm.tm_min = 0;
864 tm.tm_sec = 0;
865 } else {
866 goto date_fail;
867 }
868 tm.tm_year -= 1900;
869 tm.tm_mon--;
870 rtc_start_datetime = mktimegm(&tm);
871 if (rtc_start_datetime == -1) {
872 date_fail:
873 error_report("invalid datetime format");
874 error_printf("valid formats: "
875 "'2006-06-17T16:01:21' or '2006-06-17'\n");
876 exit(1);
877 }
878 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
879 rtc_ref_start_datetime = rtc_start_datetime;
880 }
881
882 static void configure_rtc(QemuOpts *opts)
883 {
884 const char *value;
885
886 /* Set defaults */
887 rtc_clock = QEMU_CLOCK_HOST;
888 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
889 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
890
891 value = qemu_opt_get(opts, "base");
892 if (value) {
893 if (!strcmp(value, "utc")) {
894 rtc_base_type = RTC_BASE_UTC;
895 } else if (!strcmp(value, "localtime")) {
896 Error *blocker = NULL;
897 rtc_base_type = RTC_BASE_LOCALTIME;
898 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
899 "-rtc base=localtime");
900 replay_add_blocker(blocker);
901 } else {
902 rtc_base_type = RTC_BASE_DATETIME;
903 configure_rtc_base_datetime(value);
904 }
905 }
906 value = qemu_opt_get(opts, "clock");
907 if (value) {
908 if (!strcmp(value, "host")) {
909 rtc_clock = QEMU_CLOCK_HOST;
910 } else if (!strcmp(value, "rt")) {
911 rtc_clock = QEMU_CLOCK_REALTIME;
912 } else if (!strcmp(value, "vm")) {
913 rtc_clock = QEMU_CLOCK_VIRTUAL;
914 } else {
915 error_report("invalid option value '%s'", value);
916 exit(1);
917 }
918 }
919 value = qemu_opt_get(opts, "driftfix");
920 if (value) {
921 if (!strcmp(value, "slew")) {
922 static GlobalProperty slew_lost_ticks = {
923 .driver = "mc146818rtc",
924 .property = "lost_tick_policy",
925 .value = "slew",
926 };
927
928 qdev_prop_register_global(&slew_lost_ticks);
929 } else if (!strcmp(value, "none")) {
930 /* discard is default */
931 } else {
932 error_report("invalid option value '%s'", value);
933 exit(1);
934 }
935 }
936 }
937
938 /***********************************************************/
939 /* Bluetooth support */
940 static int nb_hcis;
941 static int cur_hci;
942 static struct HCIInfo *hci_table[MAX_NICS];
943
944 struct HCIInfo *qemu_next_hci(void)
945 {
946 if (cur_hci == nb_hcis)
947 return &null_hci;
948
949 return hci_table[cur_hci++];
950 }
951
952 static int bt_hci_parse(const char *str)
953 {
954 struct HCIInfo *hci;
955 bdaddr_t bdaddr;
956
957 if (nb_hcis >= MAX_NICS) {
958 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
959 return -1;
960 }
961
962 hci = hci_init(str);
963 if (!hci)
964 return -1;
965
966 bdaddr.b[0] = 0x52;
967 bdaddr.b[1] = 0x54;
968 bdaddr.b[2] = 0x00;
969 bdaddr.b[3] = 0x12;
970 bdaddr.b[4] = 0x34;
971 bdaddr.b[5] = 0x56 + nb_hcis;
972 hci->bdaddr_set(hci, bdaddr.b);
973
974 hci_table[nb_hcis++] = hci;
975
976 return 0;
977 }
978
979 static void bt_vhci_add(int vlan_id)
980 {
981 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
982
983 if (!vlan->slave)
984 warn_report("adding a VHCI to an empty scatternet %i",
985 vlan_id);
986
987 bt_vhci_init(bt_new_hci(vlan));
988 }
989
990 static struct bt_device_s *bt_device_add(const char *opt)
991 {
992 struct bt_scatternet_s *vlan;
993 int vlan_id = 0;
994 char *endp = strstr(opt, ",vlan=");
995 int len = (endp ? endp - opt : strlen(opt)) + 1;
996 char devname[10];
997
998 pstrcpy(devname, MIN(sizeof(devname), len), opt);
999
1000 if (endp) {
1001 vlan_id = strtol(endp + 6, &endp, 0);
1002 if (*endp) {
1003 error_report("unrecognised bluetooth vlan Id");
1004 return 0;
1005 }
1006 }
1007
1008 vlan = qemu_find_bt_vlan(vlan_id);
1009
1010 if (!vlan->slave)
1011 warn_report("adding a slave device to an empty scatternet %i",
1012 vlan_id);
1013
1014 if (!strcmp(devname, "keyboard"))
1015 return bt_keyboard_init(vlan);
1016
1017 error_report("unsupported bluetooth device '%s'", devname);
1018 return 0;
1019 }
1020
1021 static int bt_parse(const char *opt)
1022 {
1023 const char *endp, *p;
1024 int vlan;
1025
1026 if (strstart(opt, "hci", &endp)) {
1027 if (!*endp || *endp == ',') {
1028 if (*endp)
1029 if (!strstart(endp, ",vlan=", 0))
1030 opt = endp + 1;
1031
1032 return bt_hci_parse(opt);
1033 }
1034 } else if (strstart(opt, "vhci", &endp)) {
1035 if (!*endp || *endp == ',') {
1036 if (*endp) {
1037 if (strstart(endp, ",vlan=", &p)) {
1038 vlan = strtol(p, (char **) &endp, 0);
1039 if (*endp) {
1040 error_report("bad scatternet '%s'", p);
1041 return 1;
1042 }
1043 } else {
1044 error_report("bad parameter '%s'", endp + 1);
1045 return 1;
1046 }
1047 } else
1048 vlan = 0;
1049
1050 bt_vhci_add(vlan);
1051 return 0;
1052 }
1053 } else if (strstart(opt, "device:", &endp))
1054 return !bt_device_add(endp);
1055
1056 error_report("bad bluetooth parameter '%s'", opt);
1057 return 1;
1058 }
1059
1060 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1061 {
1062 const char *proc_name;
1063
1064 if (qemu_opt_get(opts, "debug-threads")) {
1065 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1066 }
1067 qemu_name = qemu_opt_get(opts, "guest");
1068
1069 proc_name = qemu_opt_get(opts, "process");
1070 if (proc_name) {
1071 os_set_proc_name(proc_name);
1072 }
1073
1074 return 0;
1075 }
1076
1077 bool defaults_enabled(void)
1078 {
1079 return has_defaults;
1080 }
1081
1082 #ifndef _WIN32
1083 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1084 {
1085 int fd, dupfd, flags;
1086 int64_t fdset_id;
1087 const char *fd_opaque = NULL;
1088 AddfdInfo *fdinfo;
1089
1090 fd = qemu_opt_get_number(opts, "fd", -1);
1091 fdset_id = qemu_opt_get_number(opts, "set", -1);
1092 fd_opaque = qemu_opt_get(opts, "opaque");
1093
1094 if (fd < 0) {
1095 error_setg(errp, "fd option is required and must be non-negative");
1096 return -1;
1097 }
1098
1099 if (fd <= STDERR_FILENO) {
1100 error_setg(errp, "fd cannot be a standard I/O stream");
1101 return -1;
1102 }
1103
1104 /*
1105 * All fds inherited across exec() necessarily have FD_CLOEXEC
1106 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1107 */
1108 flags = fcntl(fd, F_GETFD);
1109 if (flags == -1 || (flags & FD_CLOEXEC)) {
1110 error_setg(errp, "fd is not valid or already in use");
1111 return -1;
1112 }
1113
1114 if (fdset_id < 0) {
1115 error_setg(errp, "set option is required and must be non-negative");
1116 return -1;
1117 }
1118
1119 #ifdef F_DUPFD_CLOEXEC
1120 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1121 #else
1122 dupfd = dup(fd);
1123 if (dupfd != -1) {
1124 qemu_set_cloexec(dupfd);
1125 }
1126 #endif
1127 if (dupfd == -1) {
1128 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1129 return -1;
1130 }
1131
1132 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1133 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1134 &error_abort);
1135 g_free(fdinfo);
1136
1137 return 0;
1138 }
1139
1140 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1141 {
1142 int fd;
1143
1144 fd = qemu_opt_get_number(opts, "fd", -1);
1145 close(fd);
1146
1147 return 0;
1148 }
1149 #endif
1150
1151 /***********************************************************/
1152 /* QEMU Block devices */
1153
1154 #define HD_OPTS "media=disk"
1155 #define CDROM_OPTS "media=cdrom"
1156 #define FD_OPTS ""
1157 #define PFLASH_OPTS ""
1158 #define MTD_OPTS ""
1159 #define SD_OPTS ""
1160
1161 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1162 {
1163 BlockInterfaceType *block_default_type = opaque;
1164
1165 return drive_new(opts, *block_default_type, errp) == NULL;
1166 }
1167
1168 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1169 {
1170 if (qemu_opt_get(opts, "snapshot") == NULL) {
1171 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1172 }
1173 return 0;
1174 }
1175
1176 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1177 int index, const char *optstr)
1178 {
1179 QemuOpts *opts;
1180 DriveInfo *dinfo;
1181
1182 if (!enable || drive_get_by_index(type, index)) {
1183 return;
1184 }
1185
1186 opts = drive_add(type, index, NULL, optstr);
1187 if (snapshot) {
1188 drive_enable_snapshot(NULL, opts, NULL);
1189 }
1190
1191 dinfo = drive_new(opts, type, &error_abort);
1192 dinfo->is_default = true;
1193
1194 }
1195
1196 static QemuOptsList qemu_smp_opts = {
1197 .name = "smp-opts",
1198 .implied_opt_name = "cpus",
1199 .merge_lists = true,
1200 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1201 .desc = {
1202 {
1203 .name = "cpus",
1204 .type = QEMU_OPT_NUMBER,
1205 }, {
1206 .name = "sockets",
1207 .type = QEMU_OPT_NUMBER,
1208 }, {
1209 .name = "cores",
1210 .type = QEMU_OPT_NUMBER,
1211 }, {
1212 .name = "threads",
1213 .type = QEMU_OPT_NUMBER,
1214 }, {
1215 .name = "maxcpus",
1216 .type = QEMU_OPT_NUMBER,
1217 },
1218 { /*End of list */ }
1219 },
1220 };
1221
1222 static void smp_parse(QemuOpts *opts)
1223 {
1224 if (opts) {
1225 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1226 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1227 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1228 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1229
1230 /* compute missing values, prefer sockets over cores over threads */
1231 if (cpus == 0 || sockets == 0) {
1232 cores = cores > 0 ? cores : 1;
1233 threads = threads > 0 ? threads : 1;
1234 if (cpus == 0) {
1235 sockets = sockets > 0 ? sockets : 1;
1236 cpus = cores * threads * sockets;
1237 } else {
1238 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1239 sockets = max_cpus / (cores * threads);
1240 }
1241 } else if (cores == 0) {
1242 threads = threads > 0 ? threads : 1;
1243 cores = cpus / (sockets * threads);
1244 cores = cores > 0 ? cores : 1;
1245 } else if (threads == 0) {
1246 threads = cpus / (cores * sockets);
1247 threads = threads > 0 ? threads : 1;
1248 } else if (sockets * cores * threads < cpus) {
1249 error_report("cpu topology: "
1250 "sockets (%u) * cores (%u) * threads (%u) < "
1251 "smp_cpus (%u)",
1252 sockets, cores, threads, cpus);
1253 exit(1);
1254 }
1255
1256 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1257
1258 if (max_cpus < cpus) {
1259 error_report("maxcpus must be equal to or greater than smp");
1260 exit(1);
1261 }
1262
1263 if (sockets * cores * threads > max_cpus) {
1264 error_report("cpu topology: "
1265 "sockets (%u) * cores (%u) * threads (%u) > "
1266 "maxcpus (%u)",
1267 sockets, cores, threads, max_cpus);
1268 exit(1);
1269 }
1270
1271 if (sockets * cores * threads != max_cpus) {
1272 warn_report("Invalid CPU topology deprecated: "
1273 "sockets (%u) * cores (%u) * threads (%u) "
1274 "!= maxcpus (%u)",
1275 sockets, cores, threads, max_cpus);
1276 }
1277
1278 smp_cpus = cpus;
1279 smp_cores = cores;
1280 smp_threads = threads;
1281 }
1282
1283 if (smp_cpus > 1) {
1284 Error *blocker = NULL;
1285 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1286 replay_add_blocker(blocker);
1287 }
1288 }
1289
1290 static void realtime_init(void)
1291 {
1292 if (enable_mlock) {
1293 if (os_mlock() < 0) {
1294 error_report("locking memory failed");
1295 exit(1);
1296 }
1297 }
1298 }
1299
1300
1301 static void configure_msg(QemuOpts *opts)
1302 {
1303 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1304 }
1305
1306 /***********************************************************/
1307 /* Semihosting */
1308
1309 typedef struct SemihostingConfig {
1310 bool enabled;
1311 SemihostingTarget target;
1312 const char **argv;
1313 int argc;
1314 const char *cmdline; /* concatenated argv */
1315 } SemihostingConfig;
1316
1317 static SemihostingConfig semihosting;
1318
1319 bool semihosting_enabled(void)
1320 {
1321 return semihosting.enabled;
1322 }
1323
1324 SemihostingTarget semihosting_get_target(void)
1325 {
1326 return semihosting.target;
1327 }
1328
1329 const char *semihosting_get_arg(int i)
1330 {
1331 if (i >= semihosting.argc) {
1332 return NULL;
1333 }
1334 return semihosting.argv[i];
1335 }
1336
1337 int semihosting_get_argc(void)
1338 {
1339 return semihosting.argc;
1340 }
1341
1342 const char *semihosting_get_cmdline(void)
1343 {
1344 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1345 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1346 }
1347 return semihosting.cmdline;
1348 }
1349
1350 static int add_semihosting_arg(void *opaque,
1351 const char *name, const char *val,
1352 Error **errp)
1353 {
1354 SemihostingConfig *s = opaque;
1355 if (strcmp(name, "arg") == 0) {
1356 s->argc++;
1357 /* one extra element as g_strjoinv() expects NULL-terminated array */
1358 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1359 s->argv[s->argc - 1] = val;
1360 s->argv[s->argc] = NULL;
1361 }
1362 return 0;
1363 }
1364
1365 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1366 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1367 {
1368 char *cmd_token;
1369
1370 /* argv[0] */
1371 add_semihosting_arg(&semihosting, "arg", file, NULL);
1372
1373 /* split -append and initialize argv[1..n] */
1374 cmd_token = strtok(g_strdup(cmd), " ");
1375 while (cmd_token) {
1376 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1377 cmd_token = strtok(NULL, " ");
1378 }
1379 }
1380
1381 /* Now we still need this for compatibility with XEN. */
1382 bool has_igd_gfx_passthru;
1383 static void igd_gfx_passthru(void)
1384 {
1385 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1386 }
1387
1388 /***********************************************************/
1389 /* USB devices */
1390
1391 static int usb_device_add(const char *devname)
1392 {
1393 USBDevice *dev = NULL;
1394
1395 if (!machine_usb(current_machine)) {
1396 return -1;
1397 }
1398
1399 dev = usbdevice_create(devname);
1400 if (!dev)
1401 return -1;
1402
1403 return 0;
1404 }
1405
1406 static int usb_parse(const char *cmdline)
1407 {
1408 int r;
1409 r = usb_device_add(cmdline);
1410 if (r < 0) {
1411 error_report("could not add USB device '%s'", cmdline);
1412 }
1413 return r;
1414 }
1415
1416 /***********************************************************/
1417 /* machine registration */
1418
1419 MachineState *current_machine;
1420
1421 static MachineClass *find_machine(const char *name)
1422 {
1423 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1424 MachineClass *mc = NULL;
1425
1426 for (el = machines; el; el = el->next) {
1427 MachineClass *temp = el->data;
1428
1429 if (!strcmp(temp->name, name)) {
1430 mc = temp;
1431 break;
1432 }
1433 if (temp->alias &&
1434 !strcmp(temp->alias, name)) {
1435 mc = temp;
1436 break;
1437 }
1438 }
1439
1440 g_slist_free(machines);
1441 return mc;
1442 }
1443
1444 MachineClass *find_default_machine(void)
1445 {
1446 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1447 MachineClass *mc = NULL;
1448
1449 for (el = machines; el; el = el->next) {
1450 MachineClass *temp = el->data;
1451
1452 if (temp->is_default) {
1453 mc = temp;
1454 break;
1455 }
1456 }
1457
1458 g_slist_free(machines);
1459 return mc;
1460 }
1461
1462 MachineInfoList *qmp_query_machines(Error **errp)
1463 {
1464 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1465 MachineInfoList *mach_list = NULL;
1466
1467 for (el = machines; el; el = el->next) {
1468 MachineClass *mc = el->data;
1469 MachineInfoList *entry;
1470 MachineInfo *info;
1471
1472 info = g_malloc0(sizeof(*info));
1473 if (mc->is_default) {
1474 info->has_is_default = true;
1475 info->is_default = true;
1476 }
1477
1478 if (mc->alias) {
1479 info->has_alias = true;
1480 info->alias = g_strdup(mc->alias);
1481 }
1482
1483 info->name = g_strdup(mc->name);
1484 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1485 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1486
1487 entry = g_malloc0(sizeof(*entry));
1488 entry->value = info;
1489 entry->next = mach_list;
1490 mach_list = entry;
1491 }
1492
1493 g_slist_free(machines);
1494 return mach_list;
1495 }
1496
1497 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1498 {
1499 ObjectProperty *prop;
1500 ObjectPropertyIterator iter;
1501
1502 if (!qemu_opt_has_help_opt(opts)) {
1503 return 0;
1504 }
1505
1506 object_property_iter_init(&iter, OBJECT(machine));
1507 while ((prop = object_property_iter_next(&iter))) {
1508 if (!prop->set) {
1509 continue;
1510 }
1511
1512 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1513 prop->name, prop->type);
1514 if (prop->description) {
1515 error_printf(" (%s)\n", prop->description);
1516 } else {
1517 error_printf("\n");
1518 }
1519 }
1520
1521 return 1;
1522 }
1523
1524 struct vm_change_state_entry {
1525 VMChangeStateHandler *cb;
1526 void *opaque;
1527 QLIST_ENTRY (vm_change_state_entry) entries;
1528 };
1529
1530 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1531
1532 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1533 void *opaque)
1534 {
1535 VMChangeStateEntry *e;
1536
1537 e = g_malloc0(sizeof (*e));
1538
1539 e->cb = cb;
1540 e->opaque = opaque;
1541 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1542 return e;
1543 }
1544
1545 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1546 {
1547 QLIST_REMOVE (e, entries);
1548 g_free (e);
1549 }
1550
1551 void vm_state_notify(int running, RunState state)
1552 {
1553 VMChangeStateEntry *e, *next;
1554
1555 trace_vm_state_notify(running, state, RunState_str(state));
1556
1557 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1558 e->cb(e->opaque, running, state);
1559 }
1560 }
1561
1562 static ShutdownCause reset_requested;
1563 static ShutdownCause shutdown_requested;
1564 static int shutdown_signal;
1565 static pid_t shutdown_pid;
1566 static int powerdown_requested;
1567 static int debug_requested;
1568 static int suspend_requested;
1569 static bool preconfig_exit_requested = true;
1570 static WakeupReason wakeup_reason;
1571 static NotifierList powerdown_notifiers =
1572 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1573 static NotifierList suspend_notifiers =
1574 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1575 static NotifierList wakeup_notifiers =
1576 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1577 static NotifierList shutdown_notifiers =
1578 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1579 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1580
1581 ShutdownCause qemu_shutdown_requested_get(void)
1582 {
1583 return shutdown_requested;
1584 }
1585
1586 ShutdownCause qemu_reset_requested_get(void)
1587 {
1588 return reset_requested;
1589 }
1590
1591 static int qemu_shutdown_requested(void)
1592 {
1593 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1594 }
1595
1596 static void qemu_kill_report(void)
1597 {
1598 if (!qtest_driver() && shutdown_signal) {
1599 if (shutdown_pid == 0) {
1600 /* This happens for eg ^C at the terminal, so it's worth
1601 * avoiding printing an odd message in that case.
1602 */
1603 error_report("terminating on signal %d", shutdown_signal);
1604 } else {
1605 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1606
1607 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1608 shutdown_signal, shutdown_pid,
1609 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1610 g_free(shutdown_cmd);
1611 }
1612 shutdown_signal = 0;
1613 }
1614 }
1615
1616 static ShutdownCause qemu_reset_requested(void)
1617 {
1618 ShutdownCause r = reset_requested;
1619
1620 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1621 reset_requested = SHUTDOWN_CAUSE_NONE;
1622 return r;
1623 }
1624 return SHUTDOWN_CAUSE_NONE;
1625 }
1626
1627 static int qemu_suspend_requested(void)
1628 {
1629 int r = suspend_requested;
1630 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1631 suspend_requested = 0;
1632 return r;
1633 }
1634 return false;
1635 }
1636
1637 static WakeupReason qemu_wakeup_requested(void)
1638 {
1639 return wakeup_reason;
1640 }
1641
1642 static int qemu_powerdown_requested(void)
1643 {
1644 int r = powerdown_requested;
1645 powerdown_requested = 0;
1646 return r;
1647 }
1648
1649 static int qemu_debug_requested(void)
1650 {
1651 int r = debug_requested;
1652 debug_requested = 0;
1653 return r;
1654 }
1655
1656 void qemu_exit_preconfig_request(void)
1657 {
1658 preconfig_exit_requested = true;
1659 }
1660
1661 /*
1662 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1663 */
1664 void qemu_system_reset(ShutdownCause reason)
1665 {
1666 MachineClass *mc;
1667
1668 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1669
1670 cpu_synchronize_all_states();
1671
1672 if (mc && mc->reset) {
1673 mc->reset();
1674 } else {
1675 qemu_devices_reset();
1676 }
1677 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1678 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1679 }
1680 cpu_synchronize_all_post_reset();
1681 }
1682
1683 void qemu_system_guest_panicked(GuestPanicInformation *info)
1684 {
1685 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1686
1687 if (current_cpu) {
1688 current_cpu->crash_occurred = true;
1689 }
1690 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1691 !!info, info);
1692 vm_stop(RUN_STATE_GUEST_PANICKED);
1693 if (!no_shutdown) {
1694 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1695 !!info, info);
1696 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1697 }
1698
1699 if (info) {
1700 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1701 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1702 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1703 info->u.hyper_v.arg1,
1704 info->u.hyper_v.arg2,
1705 info->u.hyper_v.arg3,
1706 info->u.hyper_v.arg4,
1707 info->u.hyper_v.arg5);
1708 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1709 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1710 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1711 info->u.s390.core,
1712 S390CrashReason_str(info->u.s390.reason),
1713 info->u.s390.psw_mask,
1714 info->u.s390.psw_addr);
1715 }
1716 qapi_free_GuestPanicInformation(info);
1717 }
1718 }
1719
1720 void qemu_system_reset_request(ShutdownCause reason)
1721 {
1722 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1723 shutdown_requested = reason;
1724 } else {
1725 reset_requested = reason;
1726 }
1727 cpu_stop_current();
1728 qemu_notify_event();
1729 }
1730
1731 static void qemu_system_suspend(void)
1732 {
1733 pause_all_vcpus();
1734 notifier_list_notify(&suspend_notifiers, NULL);
1735 runstate_set(RUN_STATE_SUSPENDED);
1736 qapi_event_send_suspend();
1737 }
1738
1739 void qemu_system_suspend_request(void)
1740 {
1741 if (runstate_check(RUN_STATE_SUSPENDED)) {
1742 return;
1743 }
1744 suspend_requested = 1;
1745 cpu_stop_current();
1746 qemu_notify_event();
1747 }
1748
1749 void qemu_register_suspend_notifier(Notifier *notifier)
1750 {
1751 notifier_list_add(&suspend_notifiers, notifier);
1752 }
1753
1754 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1755 {
1756 trace_system_wakeup_request(reason);
1757
1758 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1759 error_setg(errp,
1760 "Unable to wake up: guest is not in suspended state");
1761 return;
1762 }
1763 if (!(wakeup_reason_mask & (1 << reason))) {
1764 return;
1765 }
1766 runstate_set(RUN_STATE_RUNNING);
1767 wakeup_reason = reason;
1768 qemu_notify_event();
1769 }
1770
1771 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1772 {
1773 if (enabled) {
1774 wakeup_reason_mask |= (1 << reason);
1775 } else {
1776 wakeup_reason_mask &= ~(1 << reason);
1777 }
1778 }
1779
1780 void qemu_register_wakeup_notifier(Notifier *notifier)
1781 {
1782 notifier_list_add(&wakeup_notifiers, notifier);
1783 }
1784
1785 void qemu_register_wakeup_support(void)
1786 {
1787 wakeup_suspend_enabled = true;
1788 }
1789
1790 bool qemu_wakeup_suspend_enabled(void)
1791 {
1792 return wakeup_suspend_enabled;
1793 }
1794
1795 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1796 {
1797 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1798 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1799
1800 return params;
1801 }
1802
1803 void qemu_system_killed(int signal, pid_t pid)
1804 {
1805 shutdown_signal = signal;
1806 shutdown_pid = pid;
1807 no_shutdown = 0;
1808
1809 /* Cannot call qemu_system_shutdown_request directly because
1810 * we are in a signal handler.
1811 */
1812 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1813 qemu_notify_event();
1814 }
1815
1816 void qemu_system_shutdown_request(ShutdownCause reason)
1817 {
1818 trace_qemu_system_shutdown_request(reason);
1819 replay_shutdown_request(reason);
1820 shutdown_requested = reason;
1821 qemu_notify_event();
1822 }
1823
1824 static void qemu_system_powerdown(void)
1825 {
1826 qapi_event_send_powerdown();
1827 notifier_list_notify(&powerdown_notifiers, NULL);
1828 }
1829
1830 static void qemu_system_shutdown(ShutdownCause cause)
1831 {
1832 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1833 notifier_list_notify(&shutdown_notifiers, &cause);
1834 }
1835
1836 void qemu_system_powerdown_request(void)
1837 {
1838 trace_qemu_system_powerdown_request();
1839 powerdown_requested = 1;
1840 qemu_notify_event();
1841 }
1842
1843 void qemu_register_powerdown_notifier(Notifier *notifier)
1844 {
1845 notifier_list_add(&powerdown_notifiers, notifier);
1846 }
1847
1848 void qemu_register_shutdown_notifier(Notifier *notifier)
1849 {
1850 notifier_list_add(&shutdown_notifiers, notifier);
1851 }
1852
1853 void qemu_system_debug_request(void)
1854 {
1855 debug_requested = 1;
1856 qemu_notify_event();
1857 }
1858
1859 static bool main_loop_should_exit(void)
1860 {
1861 RunState r;
1862 ShutdownCause request;
1863
1864 if (preconfig_exit_requested) {
1865 if (runstate_check(RUN_STATE_PRECONFIG)) {
1866 runstate_set(RUN_STATE_PRELAUNCH);
1867 }
1868 preconfig_exit_requested = false;
1869 return true;
1870 }
1871 if (qemu_debug_requested()) {
1872 vm_stop(RUN_STATE_DEBUG);
1873 }
1874 if (qemu_suspend_requested()) {
1875 qemu_system_suspend();
1876 }
1877 request = qemu_shutdown_requested();
1878 if (request) {
1879 qemu_kill_report();
1880 qemu_system_shutdown(request);
1881 if (no_shutdown) {
1882 vm_stop(RUN_STATE_SHUTDOWN);
1883 } else {
1884 return true;
1885 }
1886 }
1887 request = qemu_reset_requested();
1888 if (request) {
1889 pause_all_vcpus();
1890 qemu_system_reset(request);
1891 resume_all_vcpus();
1892 if (!runstate_check(RUN_STATE_RUNNING) &&
1893 !runstate_check(RUN_STATE_INMIGRATE)) {
1894 runstate_set(RUN_STATE_PRELAUNCH);
1895 }
1896 }
1897 if (qemu_wakeup_requested()) {
1898 pause_all_vcpus();
1899 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1900 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1901 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1902 resume_all_vcpus();
1903 qapi_event_send_wakeup();
1904 }
1905 if (qemu_powerdown_requested()) {
1906 qemu_system_powerdown();
1907 }
1908 if (qemu_vmstop_requested(&r)) {
1909 vm_stop(r);
1910 }
1911 return false;
1912 }
1913
1914 static void main_loop(void)
1915 {
1916 #ifdef CONFIG_PROFILER
1917 int64_t ti;
1918 #endif
1919 while (!main_loop_should_exit()) {
1920 #ifdef CONFIG_PROFILER
1921 ti = profile_getclock();
1922 #endif
1923 main_loop_wait(false);
1924 #ifdef CONFIG_PROFILER
1925 dev_time += profile_getclock() - ti;
1926 #endif
1927 }
1928 }
1929
1930 static void version(void)
1931 {
1932 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1933 QEMU_COPYRIGHT "\n");
1934 }
1935
1936 static void help(int exitcode)
1937 {
1938 version();
1939 printf("usage: %s [options] [disk_image]\n\n"
1940 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1941 error_get_progname());
1942
1943 #define QEMU_OPTIONS_GENERATE_HELP
1944 #include "qemu-options-wrapper.h"
1945
1946 printf("\nDuring emulation, the following keys are useful:\n"
1947 "ctrl-alt-f toggle full screen\n"
1948 "ctrl-alt-n switch to virtual console 'n'\n"
1949 "ctrl-alt toggle mouse and keyboard grab\n"
1950 "\n"
1951 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1952 "\n"
1953 QEMU_HELP_BOTTOM "\n");
1954
1955 exit(exitcode);
1956 }
1957
1958 #define HAS_ARG 0x0001
1959
1960 typedef struct QEMUOption {
1961 const char *name;
1962 int flags;
1963 int index;
1964 uint32_t arch_mask;
1965 } QEMUOption;
1966
1967 static const QEMUOption qemu_options[] = {
1968 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1969 #define QEMU_OPTIONS_GENERATE_OPTIONS
1970 #include "qemu-options-wrapper.h"
1971 { NULL },
1972 };
1973
1974 typedef struct VGAInterfaceInfo {
1975 const char *opt_name; /* option name */
1976 const char *name; /* human-readable name */
1977 /* Class names indicating that support is available.
1978 * If no class is specified, the interface is always available */
1979 const char *class_names[2];
1980 } VGAInterfaceInfo;
1981
1982 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1983 [VGA_NONE] = {
1984 .opt_name = "none",
1985 },
1986 [VGA_STD] = {
1987 .opt_name = "std",
1988 .name = "standard VGA",
1989 .class_names = { "VGA", "isa-vga" },
1990 },
1991 [VGA_CIRRUS] = {
1992 .opt_name = "cirrus",
1993 .name = "Cirrus VGA",
1994 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1995 },
1996 [VGA_VMWARE] = {
1997 .opt_name = "vmware",
1998 .name = "VMWare SVGA",
1999 .class_names = { "vmware-svga" },
2000 },
2001 [VGA_VIRTIO] = {
2002 .opt_name = "virtio",
2003 .name = "Virtio VGA",
2004 .class_names = { "virtio-vga" },
2005 },
2006 [VGA_QXL] = {
2007 .opt_name = "qxl",
2008 .name = "QXL VGA",
2009 .class_names = { "qxl-vga" },
2010 },
2011 [VGA_TCX] = {
2012 .opt_name = "tcx",
2013 .name = "TCX framebuffer",
2014 .class_names = { "SUNW,tcx" },
2015 },
2016 [VGA_CG3] = {
2017 .opt_name = "cg3",
2018 .name = "CG3 framebuffer",
2019 .class_names = { "cgthree" },
2020 },
2021 [VGA_XENFB] = {
2022 .opt_name = "xenfb",
2023 },
2024 };
2025
2026 static bool vga_interface_available(VGAInterfaceType t)
2027 {
2028 VGAInterfaceInfo *ti = &vga_interfaces[t];
2029
2030 assert(t < VGA_TYPE_MAX);
2031 return !ti->class_names[0] ||
2032 object_class_by_name(ti->class_names[0]) ||
2033 object_class_by_name(ti->class_names[1]);
2034 }
2035
2036 static void select_vgahw(const char *p)
2037 {
2038 const char *opts;
2039 int t;
2040
2041 assert(vga_interface_type == VGA_NONE);
2042 for (t = 0; t < VGA_TYPE_MAX; t++) {
2043 VGAInterfaceInfo *ti = &vga_interfaces[t];
2044 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2045 if (!vga_interface_available(t)) {
2046 error_report("%s not available", ti->name);
2047 exit(1);
2048 }
2049 vga_interface_type = t;
2050 break;
2051 }
2052 }
2053 if (t == VGA_TYPE_MAX) {
2054 invalid_vga:
2055 error_report("unknown vga type: %s", p);
2056 exit(1);
2057 }
2058 while (*opts) {
2059 const char *nextopt;
2060
2061 if (strstart(opts, ",retrace=", &nextopt)) {
2062 opts = nextopt;
2063 if (strstart(opts, "dumb", &nextopt))
2064 vga_retrace_method = VGA_RETRACE_DUMB;
2065 else if (strstart(opts, "precise", &nextopt))
2066 vga_retrace_method = VGA_RETRACE_PRECISE;
2067 else goto invalid_vga;
2068 } else goto invalid_vga;
2069 opts = nextopt;
2070 }
2071 }
2072
2073 static void parse_display_qapi(const char *optarg)
2074 {
2075 DisplayOptions *opts;
2076 Visitor *v;
2077
2078 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2079
2080 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2081 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2082
2083 qapi_free_DisplayOptions(opts);
2084 visit_free(v);
2085 }
2086
2087 DisplayOptions *qmp_query_display_options(Error **errp)
2088 {
2089 return QAPI_CLONE(DisplayOptions, &dpy);
2090 }
2091
2092 static void parse_display(const char *p)
2093 {
2094 const char *opts;
2095
2096 if (strstart(p, "sdl", &opts)) {
2097 /*
2098 * sdl DisplayType needs hand-crafted parser instead of
2099 * parse_display_qapi() due to some options not in
2100 * DisplayOptions, specifically:
2101 * - frame
2102 * Already deprecated.
2103 * - ctrl_grab + alt_grab
2104 * Not clear yet what happens to them long-term. Should
2105 * replaced by something better or deprecated and dropped.
2106 */
2107 dpy.type = DISPLAY_TYPE_SDL;
2108 while (*opts) {
2109 const char *nextopt;
2110
2111 if (strstart(opts, ",alt_grab=", &nextopt)) {
2112 opts = nextopt;
2113 if (strstart(opts, "on", &nextopt)) {
2114 alt_grab = 1;
2115 } else if (strstart(opts, "off", &nextopt)) {
2116 alt_grab = 0;
2117 } else {
2118 goto invalid_sdl_args;
2119 }
2120 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2121 opts = nextopt;
2122 if (strstart(opts, "on", &nextopt)) {
2123 ctrl_grab = 1;
2124 } else if (strstart(opts, "off", &nextopt)) {
2125 ctrl_grab = 0;
2126 } else {
2127 goto invalid_sdl_args;
2128 }
2129 } else if (strstart(opts, ",window_close=", &nextopt)) {
2130 opts = nextopt;
2131 dpy.has_window_close = true;
2132 if (strstart(opts, "on", &nextopt)) {
2133 dpy.window_close = true;
2134 } else if (strstart(opts, "off", &nextopt)) {
2135 dpy.window_close = false;
2136 } else {
2137 goto invalid_sdl_args;
2138 }
2139 } else if (strstart(opts, ",gl=", &nextopt)) {
2140 opts = nextopt;
2141 dpy.has_gl = true;
2142 if (strstart(opts, "on", &nextopt)) {
2143 dpy.gl = DISPLAYGL_MODE_ON;
2144 } else if (strstart(opts, "core", &nextopt)) {
2145 dpy.gl = DISPLAYGL_MODE_CORE;
2146 } else if (strstart(opts, "es", &nextopt)) {
2147 dpy.gl = DISPLAYGL_MODE_ES;
2148 } else if (strstart(opts, "off", &nextopt)) {
2149 dpy.gl = DISPLAYGL_MODE_OFF;
2150 } else {
2151 goto invalid_sdl_args;
2152 }
2153 } else {
2154 invalid_sdl_args:
2155 error_report("invalid SDL option string");
2156 exit(1);
2157 }
2158 opts = nextopt;
2159 }
2160 } else if (strstart(p, "vnc", &opts)) {
2161 /*
2162 * vnc isn't a (local) DisplayType but a protocol for remote
2163 * display access.
2164 */
2165 if (*opts == '=') {
2166 vnc_parse(opts + 1, &error_fatal);
2167 } else {
2168 error_report("VNC requires a display argument vnc=<display>");
2169 exit(1);
2170 }
2171 } else {
2172 parse_display_qapi(p);
2173 }
2174 }
2175
2176 char *qemu_find_file(int type, const char *name)
2177 {
2178 int i;
2179 const char *subdir;
2180 char *buf;
2181
2182 /* Try the name as a straight path first */
2183 if (access(name, R_OK) == 0) {
2184 trace_load_file(name, name);
2185 return g_strdup(name);
2186 }
2187
2188 switch (type) {
2189 case QEMU_FILE_TYPE_BIOS:
2190 subdir = "";
2191 break;
2192 case QEMU_FILE_TYPE_KEYMAP:
2193 subdir = "keymaps/";
2194 break;
2195 default:
2196 abort();
2197 }
2198
2199 for (i = 0; i < data_dir_idx; i++) {
2200 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2201 if (access(buf, R_OK) == 0) {
2202 trace_load_file(name, buf);
2203 return buf;
2204 }
2205 g_free(buf);
2206 }
2207 return NULL;
2208 }
2209
2210 static void qemu_add_data_dir(const char *path)
2211 {
2212 int i;
2213
2214 if (path == NULL) {
2215 return;
2216 }
2217 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2218 return;
2219 }
2220 for (i = 0; i < data_dir_idx; i++) {
2221 if (strcmp(data_dir[i], path) == 0) {
2222 return; /* duplicate */
2223 }
2224 }
2225 data_dir[data_dir_idx++] = g_strdup(path);
2226 }
2227
2228 static inline bool nonempty_str(const char *str)
2229 {
2230 return str && *str;
2231 }
2232
2233 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2234 {
2235 gchar *buf;
2236 size_t size;
2237 const char *name, *file, *str;
2238 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2239
2240 if (fw_cfg == NULL) {
2241 error_setg(errp, "fw_cfg device not available");
2242 return -1;
2243 }
2244 name = qemu_opt_get(opts, "name");
2245 file = qemu_opt_get(opts, "file");
2246 str = qemu_opt_get(opts, "string");
2247
2248 /* we need name and either a file or the content string */
2249 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2250 error_setg(errp, "invalid argument(s)");
2251 return -1;
2252 }
2253 if (nonempty_str(file) && nonempty_str(str)) {
2254 error_setg(errp, "file and string are mutually exclusive");
2255 return -1;
2256 }
2257 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2258 error_setg(errp, "name too long (max. %d char)",
2259 FW_CFG_MAX_FILE_PATH - 1);
2260 return -1;
2261 }
2262 if (strncmp(name, "opt/", 4) != 0) {
2263 warn_report("externally provided fw_cfg item names "
2264 "should be prefixed with \"opt/\"");
2265 }
2266 if (nonempty_str(str)) {
2267 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2268 buf = g_memdup(str, size);
2269 } else {
2270 GError *err = NULL;
2271 if (!g_file_get_contents(file, &buf, &size, &err)) {
2272 error_setg(errp, "can't load %s: %s", file, err->message);
2273 g_error_free(err);
2274 return -1;
2275 }
2276 }
2277 /* For legacy, keep user files in a specific global order. */
2278 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2279 fw_cfg_add_file(fw_cfg, name, buf, size);
2280 fw_cfg_reset_order_override(fw_cfg);
2281 return 0;
2282 }
2283
2284 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2285 {
2286 return qdev_device_help(opts);
2287 }
2288
2289 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2290 {
2291 DeviceState *dev;
2292
2293 dev = qdev_device_add(opts, errp);
2294 if (!dev) {
2295 return -1;
2296 }
2297 object_unref(OBJECT(dev));
2298 return 0;
2299 }
2300
2301 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2302 {
2303 Error *local_err = NULL;
2304
2305 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2306 if (local_err) {
2307 error_propagate(errp, local_err);
2308 return -1;
2309 }
2310 exit(0);
2311 }
2312 return 0;
2313 }
2314
2315 #ifdef CONFIG_VIRTFS
2316 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2317 {
2318 return qemu_fsdev_add(opts, errp);
2319 }
2320 #endif
2321
2322 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2323 {
2324 Chardev *chr;
2325 const char *chardev;
2326 const char *mode;
2327 int flags;
2328
2329 mode = qemu_opt_get(opts, "mode");
2330 if (mode == NULL) {
2331 mode = "readline";
2332 }
2333 if (strcmp(mode, "readline") == 0) {
2334 flags = MONITOR_USE_READLINE;
2335 } else if (strcmp(mode, "control") == 0) {
2336 flags = MONITOR_USE_CONTROL;
2337 } else {
2338 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2339 return -1;
2340 }
2341
2342 if (qemu_opt_get_bool(opts, "pretty", 0))
2343 flags |= MONITOR_USE_PRETTY;
2344
2345 chardev = qemu_opt_get(opts, "chardev");
2346 if (!chardev) {
2347 error_report("chardev is required");
2348 exit(1);
2349 }
2350 chr = qemu_chr_find(chardev);
2351 if (chr == NULL) {
2352 error_setg(errp, "chardev \"%s\" not found", chardev);
2353 return -1;
2354 }
2355
2356 monitor_init(chr, flags);
2357 return 0;
2358 }
2359
2360 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2361 {
2362 static int monitor_device_index = 0;
2363 QemuOpts *opts;
2364 const char *p;
2365 char label[32];
2366
2367 if (strstart(optarg, "chardev:", &p)) {
2368 snprintf(label, sizeof(label), "%s", p);
2369 } else {
2370 snprintf(label, sizeof(label), "compat_monitor%d",
2371 monitor_device_index);
2372 opts = qemu_chr_parse_compat(label, optarg, true);
2373 if (!opts) {
2374 error_report("parse error: %s", optarg);
2375 exit(1);
2376 }
2377 }
2378
2379 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2380 qemu_opt_set(opts, "mode", mode, &error_abort);
2381 qemu_opt_set(opts, "chardev", label, &error_abort);
2382 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2383 monitor_device_index++;
2384 }
2385
2386 struct device_config {
2387 enum {
2388 DEV_USB, /* -usbdevice */
2389 DEV_BT, /* -bt */
2390 DEV_SERIAL, /* -serial */
2391 DEV_PARALLEL, /* -parallel */
2392 DEV_DEBUGCON, /* -debugcon */
2393 DEV_GDB, /* -gdb, -s */
2394 DEV_SCLP, /* s390 sclp */
2395 } type;
2396 const char *cmdline;
2397 Location loc;
2398 QTAILQ_ENTRY(device_config) next;
2399 };
2400
2401 static QTAILQ_HEAD(, device_config) device_configs =
2402 QTAILQ_HEAD_INITIALIZER(device_configs);
2403
2404 static void add_device_config(int type, const char *cmdline)
2405 {
2406 struct device_config *conf;
2407
2408 conf = g_malloc0(sizeof(*conf));
2409 conf->type = type;
2410 conf->cmdline = cmdline;
2411 loc_save(&conf->loc);
2412 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2413 }
2414
2415 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2416 {
2417 struct device_config *conf;
2418 int rc;
2419
2420 QTAILQ_FOREACH(conf, &device_configs, next) {
2421 if (conf->type != type)
2422 continue;
2423 loc_push_restore(&conf->loc);
2424 rc = func(conf->cmdline);
2425 loc_pop(&conf->loc);
2426 if (rc) {
2427 return rc;
2428 }
2429 }
2430 return 0;
2431 }
2432
2433 static int serial_parse(const char *devname)
2434 {
2435 int index = num_serial_hds;
2436 char label[32];
2437
2438 if (strcmp(devname, "none") == 0)
2439 return 0;
2440 snprintf(label, sizeof(label), "serial%d", index);
2441 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2442
2443 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2444 if (!serial_hds[index]) {
2445 error_report("could not connect serial device"
2446 " to character backend '%s'", devname);
2447 return -1;
2448 }
2449 num_serial_hds++;
2450 return 0;
2451 }
2452
2453 Chardev *serial_hd(int i)
2454 {
2455 assert(i >= 0);
2456 if (i < num_serial_hds) {
2457 return serial_hds[i];
2458 }
2459 return NULL;
2460 }
2461
2462 int serial_max_hds(void)
2463 {
2464 return num_serial_hds;
2465 }
2466
2467 static int parallel_parse(const char *devname)
2468 {
2469 static int index = 0;
2470 char label[32];
2471
2472 if (strcmp(devname, "none") == 0)
2473 return 0;
2474 if (index == MAX_PARALLEL_PORTS) {
2475 error_report("too many parallel ports");
2476 exit(1);
2477 }
2478 snprintf(label, sizeof(label), "parallel%d", index);
2479 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2480 if (!parallel_hds[index]) {
2481 error_report("could not connect parallel device"
2482 " to character backend '%s'", devname);
2483 return -1;
2484 }
2485 index++;
2486 return 0;
2487 }
2488
2489 static int debugcon_parse(const char *devname)
2490 {
2491 QemuOpts *opts;
2492
2493 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2494 error_report("invalid character backend '%s'", devname);
2495 exit(1);
2496 }
2497 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2498 if (!opts) {
2499 error_report("already have a debugcon device");
2500 exit(1);
2501 }
2502 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2503 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2504 return 0;
2505 }
2506
2507 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2508 {
2509 const MachineClass *mc1 = a, *mc2 = b;
2510 int res;
2511
2512 if (mc1->family == NULL) {
2513 if (mc2->family == NULL) {
2514 /* Compare standalone machine types against each other; they sort
2515 * in increasing order.
2516 */
2517 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2518 object_class_get_name(OBJECT_CLASS(mc2)));
2519 }
2520
2521 /* Standalone machine types sort after families. */
2522 return 1;
2523 }
2524
2525 if (mc2->family == NULL) {
2526 /* Families sort before standalone machine types. */
2527 return -1;
2528 }
2529
2530 /* Families sort between each other alphabetically increasingly. */
2531 res = strcmp(mc1->family, mc2->family);
2532 if (res != 0) {
2533 return res;
2534 }
2535
2536 /* Within the same family, machine types sort in decreasing order. */
2537 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2538 object_class_get_name(OBJECT_CLASS(mc1)));
2539 }
2540
2541 static MachineClass *machine_parse(const char *name)
2542 {
2543 MachineClass *mc = NULL;
2544 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2545
2546 if (name) {
2547 mc = find_machine(name);
2548 }
2549 if (mc) {
2550 g_slist_free(machines);
2551 return mc;
2552 }
2553 if (name && !is_help_option(name)) {
2554 error_report("unsupported machine type");
2555 error_printf("Use -machine help to list supported machines\n");
2556 } else {
2557 printf("Supported machines are:\n");
2558 machines = g_slist_sort(machines, machine_class_cmp);
2559 for (el = machines; el; el = el->next) {
2560 MachineClass *mc = el->data;
2561 if (mc->alias) {
2562 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2563 }
2564 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2565 mc->is_default ? " (default)" : "",
2566 mc->deprecation_reason ? " (deprecated)" : "");
2567 }
2568 }
2569
2570 g_slist_free(machines);
2571 exit(!name || !is_help_option(name));
2572 }
2573
2574 void qemu_add_exit_notifier(Notifier *notify)
2575 {
2576 notifier_list_add(&exit_notifiers, notify);
2577 }
2578
2579 void qemu_remove_exit_notifier(Notifier *notify)
2580 {
2581 notifier_remove(notify);
2582 }
2583
2584 static void qemu_run_exit_notifiers(void)
2585 {
2586 notifier_list_notify(&exit_notifiers, NULL);
2587 }
2588
2589 static const char *pid_file;
2590 static Notifier qemu_unlink_pidfile_notifier;
2591
2592 static void qemu_unlink_pidfile(Notifier *n, void *data)
2593 {
2594 if (pid_file) {
2595 unlink(pid_file);
2596 }
2597 }
2598
2599 bool machine_init_done;
2600
2601 void qemu_add_machine_init_done_notifier(Notifier *notify)
2602 {
2603 notifier_list_add(&machine_init_done_notifiers, notify);
2604 if (machine_init_done) {
2605 notify->notify(notify, NULL);
2606 }
2607 }
2608
2609 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2610 {
2611 notifier_remove(notify);
2612 }
2613
2614 static void qemu_run_machine_init_done_notifiers(void)
2615 {
2616 machine_init_done = true;
2617 notifier_list_notify(&machine_init_done_notifiers, NULL);
2618 }
2619
2620 static const QEMUOption *lookup_opt(int argc, char **argv,
2621 const char **poptarg, int *poptind)
2622 {
2623 const QEMUOption *popt;
2624 int optind = *poptind;
2625 char *r = argv[optind];
2626 const char *optarg;
2627
2628 loc_set_cmdline(argv, optind, 1);
2629 optind++;
2630 /* Treat --foo the same as -foo. */
2631 if (r[1] == '-')
2632 r++;
2633 popt = qemu_options;
2634 for(;;) {
2635 if (!popt->name) {
2636 error_report("invalid option");
2637 exit(1);
2638 }
2639 if (!strcmp(popt->name, r + 1))
2640 break;
2641 popt++;
2642 }
2643 if (popt->flags & HAS_ARG) {
2644 if (optind >= argc) {
2645 error_report("requires an argument");
2646 exit(1);
2647 }
2648 optarg = argv[optind++];
2649 loc_set_cmdline(argv, optind - 2, 2);
2650 } else {
2651 optarg = NULL;
2652 }
2653
2654 *poptarg = optarg;
2655 *poptind = optind;
2656
2657 return popt;
2658 }
2659
2660 static MachineClass *select_machine(void)
2661 {
2662 MachineClass *machine_class = find_default_machine();
2663 const char *optarg;
2664 QemuOpts *opts;
2665 Location loc;
2666
2667 loc_push_none(&loc);
2668
2669 opts = qemu_get_machine_opts();
2670 qemu_opts_loc_restore(opts);
2671
2672 optarg = qemu_opt_get(opts, "type");
2673 if (optarg) {
2674 machine_class = machine_parse(optarg);
2675 }
2676
2677 if (!machine_class) {
2678 error_report("No machine specified, and there is no default");
2679 error_printf("Use -machine help to list supported machines\n");
2680 exit(1);
2681 }
2682
2683 loc_pop(&loc);
2684 return machine_class;
2685 }
2686
2687 static int machine_set_property(void *opaque,
2688 const char *name, const char *value,
2689 Error **errp)
2690 {
2691 Object *obj = OBJECT(opaque);
2692 Error *local_err = NULL;
2693 char *p, *qom_name;
2694
2695 if (strcmp(name, "type") == 0) {
2696 return 0;
2697 }
2698
2699 qom_name = g_strdup(name);
2700 for (p = qom_name; *p; p++) {
2701 if (*p == '_') {
2702 *p = '-';
2703 }
2704 }
2705
2706 object_property_parse(obj, value, qom_name, &local_err);
2707 g_free(qom_name);
2708
2709 if (local_err) {
2710 error_propagate(errp, local_err);
2711 return -1;
2712 }
2713
2714 return 0;
2715 }
2716
2717
2718 /*
2719 * Initial object creation happens before all other
2720 * QEMU data types are created. The majority of objects
2721 * can be created at this point. The rng-egd object
2722 * cannot be created here, as it depends on the chardev
2723 * already existing.
2724 */
2725 static bool object_create_initial(const char *type, QemuOpts *opts)
2726 {
2727 ObjectClass *klass;
2728
2729 if (is_help_option(type)) {
2730 GSList *l, *list;
2731
2732 printf("List of user creatable objects:\n");
2733 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2734 for (l = list; l != NULL; l = l->next) {
2735 ObjectClass *oc = OBJECT_CLASS(l->data);
2736 printf(" %s\n", object_class_get_name(oc));
2737 }
2738 g_slist_free(list);
2739 exit(0);
2740 }
2741
2742 klass = object_class_by_name(type);
2743 if (klass && qemu_opt_has_help_opt(opts)) {
2744 ObjectPropertyIterator iter;
2745 ObjectProperty *prop;
2746 GPtrArray *array = g_ptr_array_new();
2747 int i;
2748
2749 object_class_property_iter_init(&iter, klass);
2750 while ((prop = object_property_iter_next(&iter))) {
2751 GString *str;
2752
2753 if (!prop->set) {
2754 continue;
2755 }
2756
2757 str = g_string_new(NULL);
2758 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2759 if (prop->description) {
2760 if (str->len < 24) {
2761 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2762 }
2763 g_string_append_printf(str, " - %s", prop->description);
2764 }
2765 g_ptr_array_add(array, g_string_free(str, false));
2766 }
2767 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2768 if (array->len > 0) {
2769 printf("%s options:\n", type);
2770 } else {
2771 printf("There are no options for %s.\n", type);
2772 }
2773 for (i = 0; i < array->len; i++) {
2774 printf("%s\n", (char *)array->pdata[i]);
2775 }
2776 g_ptr_array_set_free_func(array, g_free);
2777 g_ptr_array_free(array, true);
2778 exit(0);
2779 }
2780
2781 if (g_str_equal(type, "rng-egd") ||
2782 g_str_has_prefix(type, "pr-manager-")) {
2783 return false;
2784 }
2785
2786 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2787 if (g_str_equal(type, "cryptodev-vhost-user")) {
2788 return false;
2789 }
2790 #endif
2791
2792 /*
2793 * return false for concrete netfilters since
2794 * they depend on netdevs already existing
2795 */
2796 if (g_str_equal(type, "filter-buffer") ||
2797 g_str_equal(type, "filter-dump") ||
2798 g_str_equal(type, "filter-mirror") ||
2799 g_str_equal(type, "filter-redirector") ||
2800 g_str_equal(type, "colo-compare") ||
2801 g_str_equal(type, "filter-rewriter") ||
2802 g_str_equal(type, "filter-replay")) {
2803 return false;
2804 }
2805
2806 /* Memory allocation by backends needs to be done
2807 * after configure_accelerator() (due to the tcg_enabled()
2808 * checks at memory_region_init_*()).
2809 *
2810 * Also, allocation of large amounts of memory may delay
2811 * chardev initialization for too long, and trigger timeouts
2812 * on software that waits for a monitor socket to be created
2813 * (e.g. libvirt).
2814 */
2815 if (g_str_has_prefix(type, "memory-backend-")) {
2816 return false;
2817 }
2818
2819 return true;
2820 }
2821
2822
2823 /*
2824 * The remainder of object creation happens after the
2825 * creation of chardev, fsdev, net clients and device data types.
2826 */
2827 static bool object_create_delayed(const char *type, QemuOpts *opts)
2828 {
2829 return !object_create_initial(type, opts);
2830 }
2831
2832
2833 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2834 MachineClass *mc)
2835 {
2836 uint64_t sz;
2837 const char *mem_str;
2838 const ram_addr_t default_ram_size = mc->default_ram_size;
2839 QemuOpts *opts = qemu_find_opts_singleton("memory");
2840 Location loc;
2841
2842 loc_push_none(&loc);
2843 qemu_opts_loc_restore(opts);
2844
2845 sz = 0;
2846 mem_str = qemu_opt_get(opts, "size");
2847 if (mem_str) {
2848 if (!*mem_str) {
2849 error_report("missing 'size' option value");
2850 exit(EXIT_FAILURE);
2851 }
2852
2853 sz = qemu_opt_get_size(opts, "size", ram_size);
2854
2855 /* Fix up legacy suffix-less format */
2856 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2857 uint64_t overflow_check = sz;
2858
2859 sz *= MiB;
2860 if (sz / MiB != overflow_check) {
2861 error_report("too large 'size' option value");
2862 exit(EXIT_FAILURE);
2863 }
2864 }
2865 }
2866
2867 /* backward compatibility behaviour for case "-m 0" */
2868 if (sz == 0) {
2869 sz = default_ram_size;
2870 }
2871
2872 sz = QEMU_ALIGN_UP(sz, 8192);
2873 ram_size = sz;
2874 if (ram_size != sz) {
2875 error_report("ram size too large");
2876 exit(EXIT_FAILURE);
2877 }
2878
2879 /* store value for the future use */
2880 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2881 *maxram_size = ram_size;
2882
2883 if (qemu_opt_get(opts, "maxmem")) {
2884 uint64_t slots;
2885
2886 sz = qemu_opt_get_size(opts, "maxmem", 0);
2887 slots = qemu_opt_get_number(opts, "slots", 0);
2888 if (sz < ram_size) {
2889 error_report("invalid value of -m option maxmem: "
2890 "maximum memory size (0x%" PRIx64 ") must be at least "
2891 "the initial memory size (0x" RAM_ADDR_FMT ")",
2892 sz, ram_size);
2893 exit(EXIT_FAILURE);
2894 } else if (slots && sz == ram_size) {
2895 error_report("invalid value of -m option maxmem: "
2896 "memory slots were specified but maximum memory size "
2897 "(0x%" PRIx64 ") is equal to the initial memory size "
2898 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2899 exit(EXIT_FAILURE);
2900 }
2901
2902 *maxram_size = sz;
2903 *ram_slots = slots;
2904 } else if (qemu_opt_get(opts, "slots")) {
2905 error_report("invalid -m option value: missing 'maxmem' option");
2906 exit(EXIT_FAILURE);
2907 }
2908
2909 loc_pop(&loc);
2910 }
2911
2912 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2913 {
2914 GlobalProperty *g;
2915
2916 g = g_malloc0(sizeof(*g));
2917 g->driver = qemu_opt_get(opts, "driver");
2918 g->property = qemu_opt_get(opts, "property");
2919 g->value = qemu_opt_get(opts, "value");
2920 qdev_prop_register_global(g);
2921 return 0;
2922 }
2923
2924 static int qemu_read_default_config_file(void)
2925 {
2926 int ret;
2927
2928 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2929 if (ret < 0 && ret != -ENOENT) {
2930 return ret;
2931 }
2932
2933 return 0;
2934 }
2935
2936 static void user_register_global_props(void)
2937 {
2938 qemu_opts_foreach(qemu_find_opts("global"),
2939 global_init_func, NULL, NULL);
2940 }
2941
2942 /*
2943 * Note: we should see that these properties are actually having a
2944 * priority: accel < machine < user. This means e.g. when user
2945 * specifies something in "-global", it'll always be used with highest
2946 * priority than either machine/accelerator compat properties.
2947 */
2948 static void register_global_properties(MachineState *ms)
2949 {
2950 user_register_global_props();
2951 }
2952
2953 int main(int argc, char **argv, char **envp)
2954 {
2955 int i;
2956 int snapshot, linux_boot;
2957 const char *initrd_filename;
2958 const char *kernel_filename, *kernel_cmdline;
2959 const char *boot_order = NULL;
2960 const char *boot_once = NULL;
2961 DisplayState *ds;
2962 QemuOpts *opts, *machine_opts;
2963 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2964 QemuOptsList *olist;
2965 int optind;
2966 const char *optarg;
2967 const char *loadvm = NULL;
2968 MachineClass *machine_class;
2969 const char *cpu_model;
2970 const char *vga_model = NULL;
2971 const char *qtest_chrdev = NULL;
2972 const char *qtest_log = NULL;
2973 const char *incoming = NULL;
2974 bool userconfig = true;
2975 bool nographic = false;
2976 int display_remote = 0;
2977 const char *log_mask = NULL;
2978 const char *log_file = NULL;
2979 char *trace_file = NULL;
2980 ram_addr_t maxram_size;
2981 uint64_t ram_slots = 0;
2982 FILE *vmstate_dump_file = NULL;
2983 Error *main_loop_err = NULL;
2984 Error *err = NULL;
2985 bool list_data_dirs = false;
2986 char *dir, **dirs;
2987 typedef struct BlockdevOptions_queue {
2988 BlockdevOptions *bdo;
2989 Location loc;
2990 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
2991 } BlockdevOptions_queue;
2992 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
2993 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2994
2995 module_call_init(MODULE_INIT_TRACE);
2996
2997 qemu_init_cpu_list();
2998 qemu_init_cpu_loop();
2999
3000 qemu_mutex_lock_iothread();
3001
3002 atexit(qemu_run_exit_notifiers);
3003 error_set_progname(argv[0]);
3004 qemu_init_exec_dir(argv[0]);
3005
3006 module_call_init(MODULE_INIT_QOM);
3007
3008 qemu_add_opts(&qemu_drive_opts);
3009 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3010 qemu_add_drive_opts(&qemu_common_drive_opts);
3011 qemu_add_drive_opts(&qemu_drive_opts);
3012 qemu_add_drive_opts(&bdrv_runtime_opts);
3013 qemu_add_opts(&qemu_chardev_opts);
3014 qemu_add_opts(&qemu_device_opts);
3015 qemu_add_opts(&qemu_netdev_opts);
3016 qemu_add_opts(&qemu_nic_opts);
3017 qemu_add_opts(&qemu_net_opts);
3018 qemu_add_opts(&qemu_rtc_opts);
3019 qemu_add_opts(&qemu_global_opts);
3020 qemu_add_opts(&qemu_mon_opts);
3021 qemu_add_opts(&qemu_trace_opts);
3022 qemu_add_opts(&qemu_option_rom_opts);
3023 qemu_add_opts(&qemu_machine_opts);
3024 qemu_add_opts(&qemu_accel_opts);
3025 qemu_add_opts(&qemu_mem_opts);
3026 qemu_add_opts(&qemu_smp_opts);
3027 qemu_add_opts(&qemu_boot_opts);
3028 qemu_add_opts(&qemu_add_fd_opts);
3029 qemu_add_opts(&qemu_object_opts);
3030 qemu_add_opts(&qemu_tpmdev_opts);
3031 qemu_add_opts(&qemu_realtime_opts);
3032 qemu_add_opts(&qemu_overcommit_opts);
3033 qemu_add_opts(&qemu_msg_opts);
3034 qemu_add_opts(&qemu_name_opts);
3035 qemu_add_opts(&qemu_numa_opts);
3036 qemu_add_opts(&qemu_icount_opts);
3037 qemu_add_opts(&qemu_semihosting_config_opts);
3038 qemu_add_opts(&qemu_fw_cfg_opts);
3039 module_call_init(MODULE_INIT_OPTS);
3040
3041 runstate_init();
3042 postcopy_infrastructure_init();
3043 monitor_init_globals();
3044
3045 if (qcrypto_init(&err) < 0) {
3046 error_reportf_err(err, "cannot initialize crypto: ");
3047 exit(1);
3048 }
3049
3050 QLIST_INIT (&vm_change_state_head);
3051 os_setup_early_signal_handling();
3052
3053 cpu_model = NULL;
3054 snapshot = 0;
3055
3056 nb_nics = 0;
3057
3058 bdrv_init_with_whitelist();
3059
3060 autostart = 1;
3061
3062 /* first pass of option parsing */
3063 optind = 1;
3064 while (optind < argc) {
3065 if (argv[optind][0] != '-') {
3066 /* disk image */
3067 optind++;
3068 } else {
3069 const QEMUOption *popt;
3070
3071 popt = lookup_opt(argc, argv, &optarg, &optind);
3072 switch (popt->index) {
3073 case QEMU_OPTION_nouserconfig:
3074 userconfig = false;
3075 break;
3076 }
3077 }
3078 }
3079
3080 if (userconfig) {
3081 if (qemu_read_default_config_file() < 0) {
3082 exit(1);
3083 }
3084 }
3085
3086 /* second pass of option parsing */
3087 optind = 1;
3088 for(;;) {
3089 if (optind >= argc)
3090 break;
3091 if (argv[optind][0] != '-') {
3092 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3093 } else {
3094 const QEMUOption *popt;
3095
3096 popt = lookup_opt(argc, argv, &optarg, &optind);
3097 if (!(popt->arch_mask & arch_type)) {
3098 error_report("Option not supported for this target");
3099 exit(1);
3100 }
3101 switch(popt->index) {
3102 case QEMU_OPTION_cpu:
3103 /* hw initialization will check this */
3104 cpu_model = optarg;
3105 break;
3106 case QEMU_OPTION_hda:
3107 case QEMU_OPTION_hdb:
3108 case QEMU_OPTION_hdc:
3109 case QEMU_OPTION_hdd:
3110 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3111 HD_OPTS);
3112 break;
3113 case QEMU_OPTION_blockdev:
3114 {
3115 Visitor *v;
3116 BlockdevOptions_queue *bdo;
3117
3118 v = qobject_input_visitor_new_str(optarg, "driver",
3119 &error_fatal);
3120
3121 bdo = g_new(BlockdevOptions_queue, 1);
3122 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3123 &error_fatal);
3124 visit_free(v);
3125 loc_save(&bdo->loc);
3126 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3127 break;
3128 }
3129 case QEMU_OPTION_drive:
3130 if (drive_def(optarg) == NULL) {
3131 exit(1);
3132 }
3133 break;
3134 case QEMU_OPTION_set:
3135 if (qemu_set_option(optarg) != 0)
3136 exit(1);
3137 break;
3138 case QEMU_OPTION_global:
3139 if (qemu_global_option(optarg) != 0)
3140 exit(1);
3141 break;
3142 case QEMU_OPTION_mtdblock:
3143 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3144 break;
3145 case QEMU_OPTION_sd:
3146 drive_add(IF_SD, -1, optarg, SD_OPTS);
3147 break;
3148 case QEMU_OPTION_pflash:
3149 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3150 break;
3151 case QEMU_OPTION_snapshot:
3152 snapshot = 1;
3153 break;
3154 case QEMU_OPTION_numa:
3155 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3156 optarg, true);
3157 if (!opts) {
3158 exit(1);
3159 }
3160 break;
3161 case QEMU_OPTION_display:
3162 parse_display(optarg);
3163 break;
3164 case QEMU_OPTION_nographic:
3165 olist = qemu_find_opts("machine");
3166 qemu_opts_parse_noisily(olist, "graphics=off", false);
3167 nographic = true;
3168 dpy.type = DISPLAY_TYPE_NONE;
3169 break;
3170 case QEMU_OPTION_curses:
3171 #ifdef CONFIG_CURSES
3172 dpy.type = DISPLAY_TYPE_CURSES;
3173 #else
3174 error_report("curses support is disabled");
3175 exit(1);
3176 #endif
3177 break;
3178 case QEMU_OPTION_portrait:
3179 graphic_rotate = 90;
3180 break;
3181 case QEMU_OPTION_rotate:
3182 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3183 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3184 graphic_rotate != 180 && graphic_rotate != 270) {
3185 error_report("only 90, 180, 270 deg rotation is available");
3186 exit(1);
3187 }
3188 break;
3189 case QEMU_OPTION_kernel:
3190 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3191 &error_abort);
3192 break;
3193 case QEMU_OPTION_initrd:
3194 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3195 &error_abort);
3196 break;
3197 case QEMU_OPTION_append:
3198 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3199 &error_abort);
3200 break;
3201 case QEMU_OPTION_dtb:
3202 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3203 &error_abort);
3204 break;
3205 case QEMU_OPTION_cdrom:
3206 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3207 break;
3208 case QEMU_OPTION_boot:
3209 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3210 optarg, true);
3211 if (!opts) {
3212 exit(1);
3213 }
3214 break;
3215 case QEMU_OPTION_fda:
3216 case QEMU_OPTION_fdb:
3217 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3218 optarg, FD_OPTS);
3219 break;
3220 case QEMU_OPTION_no_fd_bootchk:
3221 fd_bootchk = 0;
3222 break;
3223 case QEMU_OPTION_netdev:
3224 default_net = 0;
3225 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3226 exit(1);
3227 }
3228 break;
3229 case QEMU_OPTION_nic:
3230 default_net = 0;
3231 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3232 exit(1);
3233 }
3234 break;
3235 case QEMU_OPTION_net:
3236 default_net = 0;
3237 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3238 exit(1);
3239 }
3240 break;
3241 #ifdef CONFIG_LIBISCSI
3242 case QEMU_OPTION_iscsi:
3243 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3244 optarg, false);
3245 if (!opts) {
3246 exit(1);
3247 }
3248 break;
3249 #endif
3250 case QEMU_OPTION_bt:
3251 warn_report("The bluetooth subsystem is deprecated and will "
3252 "be removed soon. If the bluetooth subsystem is "
3253 "still useful for you, please send a mail to "
3254 "qemu-devel@nongnu.org with your usecase.");
3255 add_device_config(DEV_BT, optarg);
3256 break;
3257 case QEMU_OPTION_audio_help:
3258 AUD_help ();
3259 exit (0);
3260 break;
3261 case QEMU_OPTION_soundhw:
3262 select_soundhw (optarg);
3263 break;
3264 case QEMU_OPTION_h:
3265 help(0);
3266 break;
3267 case QEMU_OPTION_version:
3268 version();
3269 exit(0);
3270 break;
3271 case QEMU_OPTION_m:
3272 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3273 optarg, true);
3274 if (!opts) {
3275 exit(EXIT_FAILURE);
3276 }
3277 break;
3278 #ifdef CONFIG_TPM
3279 case QEMU_OPTION_tpmdev:
3280 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3281 exit(1);
3282 }
3283 break;
3284 #endif
3285 case QEMU_OPTION_mempath:
3286 mem_path = optarg;
3287 break;
3288 case QEMU_OPTION_mem_prealloc:
3289 mem_prealloc = 1;
3290 break;
3291 case QEMU_OPTION_d:
3292 log_mask = optarg;
3293 break;
3294 case QEMU_OPTION_D:
3295 log_file = optarg;
3296 break;
3297 case QEMU_OPTION_DFILTER:
3298 qemu_set_dfilter_ranges(optarg, &error_fatal);
3299 break;
3300 case QEMU_OPTION_s:
3301 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3302 break;
3303 case QEMU_OPTION_gdb:
3304 add_device_config(DEV_GDB, optarg);
3305 break;
3306 case QEMU_OPTION_L:
3307 if (is_help_option(optarg)) {
3308 list_data_dirs = true;
3309 } else {
3310 qemu_add_data_dir(optarg);
3311 }
3312 break;
3313 case QEMU_OPTION_bios:
3314 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3315 &error_abort);
3316 break;
3317 case QEMU_OPTION_singlestep:
3318 singlestep = 1;
3319 break;
3320 case QEMU_OPTION_S:
3321 autostart = 0;
3322 break;
3323 case QEMU_OPTION_k:
3324 keyboard_layout = optarg;
3325 break;
3326 case QEMU_OPTION_vga:
3327 vga_model = optarg;
3328 default_vga = 0;
3329 break;
3330 case QEMU_OPTION_g:
3331 {
3332 const char *p;
3333 int w, h, depth;
3334 p = optarg;
3335 w = strtol(p, (char **)&p, 10);
3336 if (w <= 0) {
3337 graphic_error:
3338 error_report("invalid resolution or depth");
3339 exit(1);
3340 }
3341 if (*p != 'x')
3342 goto graphic_error;
3343 p++;
3344 h = strtol(p, (char **)&p, 10);
3345 if (h <= 0)
3346 goto graphic_error;
3347 if (*p == 'x') {
3348 p++;
3349 depth = strtol(p, (char **)&p, 10);
3350 if (depth != 8 && depth != 15 && depth != 16 &&
3351 depth != 24 && depth != 32)
3352 goto graphic_error;
3353 } else if (*p == '\0') {
3354 depth = graphic_depth;
3355 } else {
3356 goto graphic_error;
3357 }
3358
3359 graphic_width = w;
3360 graphic_height = h;
3361 graphic_depth = depth;
3362 }
3363 break;
3364 case QEMU_OPTION_echr:
3365 {
3366 char *r;
3367 term_escape_char = strtol(optarg, &r, 0);
3368 if (r == optarg)
3369 printf("Bad argument to echr\n");
3370 break;
3371 }
3372 case QEMU_OPTION_monitor:
3373 default_monitor = 0;
3374 if (strncmp(optarg, "none", 4)) {
3375 monitor_parse(optarg, "readline", false);
3376 }
3377 break;
3378 case QEMU_OPTION_qmp:
3379 monitor_parse(optarg, "control", false);
3380 default_monitor = 0;
3381 break;
3382 case QEMU_OPTION_qmp_pretty:
3383 monitor_parse(optarg, "control", true);
3384 default_monitor = 0;
3385 break;
3386 case QEMU_OPTION_mon:
3387 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3388 true);
3389 if (!opts) {
3390 exit(1);
3391 }
3392 default_monitor = 0;
3393 break;
3394 case QEMU_OPTION_chardev:
3395 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3396 optarg, true);
3397 if (!opts) {
3398 exit(1);
3399 }
3400 break;
3401 case QEMU_OPTION_fsdev:
3402 olist = qemu_find_opts("fsdev");
3403 if (!olist) {
3404 error_report("fsdev support is disabled");
3405 exit(1);
3406 }
3407 opts = qemu_opts_parse_noisily(olist, optarg, true);
3408 if (!opts) {
3409 exit(1);
3410 }
3411 break;
3412 case QEMU_OPTION_virtfs: {
3413 QemuOpts *fsdev;
3414 QemuOpts *device;
3415 const char *writeout, *sock_fd, *socket, *path, *security_model;
3416
3417 olist = qemu_find_opts("virtfs");
3418 if (!olist) {
3419 error_report("virtfs support is disabled");
3420 exit(1);
3421 }
3422 opts = qemu_opts_parse_noisily(olist, optarg, true);
3423 if (!opts) {
3424 exit(1);
3425 }
3426
3427 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3428 qemu_opt_get(opts, "mount_tag") == NULL) {
3429 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3430 exit(1);
3431 }
3432 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3433 qemu_opts_id(opts) ?:
3434 qemu_opt_get(opts, "mount_tag"),
3435 1, NULL);
3436 if (!fsdev) {
3437 error_report("duplicate or invalid fsdev id: %s",
3438 qemu_opt_get(opts, "mount_tag"));
3439 exit(1);
3440 }
3441
3442 writeout = qemu_opt_get(opts, "writeout");
3443 if (writeout) {
3444 #ifdef CONFIG_SYNC_FILE_RANGE
3445 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3446 #else
3447 error_report("writeout=immediate not supported "
3448 "on this platform");
3449 exit(1);
3450 #endif
3451 }
3452 qemu_opt_set(fsdev, "fsdriver",
3453 qemu_opt_get(opts, "fsdriver"), &error_abort);
3454 path = qemu_opt_get(opts, "path");
3455 if (path) {
3456 qemu_opt_set(fsdev, "path", path, &error_abort);
3457 }
3458 security_model = qemu_opt_get(opts, "security_model");
3459 if (security_model) {
3460 qemu_opt_set(fsdev, "security_model", security_model,
3461 &error_abort);
3462 }
3463 socket = qemu_opt_get(opts, "socket");
3464 if (socket) {
3465 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3466 }
3467 sock_fd = qemu_opt_get(opts, "sock_fd");
3468 if (sock_fd) {
3469 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3470 }
3471
3472 qemu_opt_set_bool(fsdev, "readonly",
3473 qemu_opt_get_bool(opts, "readonly", 0),
3474 &error_abort);
3475 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3476 &error_abort);
3477 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3478 qemu_opt_set(device, "fsdev",
3479 qemu_opts_id(fsdev), &error_abort);
3480 qemu_opt_set(device, "mount_tag",
3481 qemu_opt_get(opts, "mount_tag"), &error_abort);
3482 break;
3483 }
3484 case QEMU_OPTION_virtfs_synth: {
3485 QemuOpts *fsdev;
3486 QemuOpts *device;
3487
3488 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3489 1, NULL);
3490 if (!fsdev) {
3491 error_report("duplicate option: %s", "virtfs_synth");
3492 exit(1);
3493 }
3494 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3495
3496 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3497 &error_abort);
3498 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3499 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3500 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3501 break;
3502 }
3503 case QEMU_OPTION_serial:
3504 add_device_config(DEV_SERIAL, optarg);
3505 default_serial = 0;
3506 if (strncmp(optarg, "mon:", 4) == 0) {
3507 default_monitor = 0;
3508 }
3509 break;
3510 case QEMU_OPTION_watchdog:
3511 if (watchdog) {
3512 error_report("only one watchdog option may be given");
3513 return 1;
3514 }
3515 watchdog = optarg;
3516 break;
3517 case QEMU_OPTION_watchdog_action:
3518 if (select_watchdog_action(optarg) == -1) {
3519 error_report("unknown -watchdog-action parameter");
3520 exit(1);
3521 }
3522 break;
3523 case QEMU_OPTION_parallel:
3524 add_device_config(DEV_PARALLEL, optarg);
3525 default_parallel = 0;
3526 if (strncmp(optarg, "mon:", 4) == 0) {
3527 default_monitor = 0;
3528 }
3529 break;
3530 case QEMU_OPTION_debugcon:
3531 add_device_config(DEV_DEBUGCON, optarg);
3532 break;
3533 case QEMU_OPTION_loadvm:
3534 loadvm = optarg;
3535 break;
3536 case QEMU_OPTION_full_screen:
3537 dpy.has_full_screen = true;
3538 dpy.full_screen = true;
3539 break;
3540 case QEMU_OPTION_alt_grab:
3541 alt_grab = 1;
3542 break;
3543 case QEMU_OPTION_ctrl_grab:
3544 ctrl_grab = 1;
3545 break;
3546 case QEMU_OPTION_no_quit:
3547 dpy.has_window_close = true;
3548 dpy.window_close = false;
3549 break;
3550 case QEMU_OPTION_sdl:
3551 #ifdef CONFIG_SDL
3552 dpy.type = DISPLAY_TYPE_SDL;
3553 break;
3554 #else
3555 error_report("SDL support is disabled");
3556 exit(1);
3557 #endif
3558 case QEMU_OPTION_pidfile:
3559 pid_file = optarg;
3560 break;
3561 case QEMU_OPTION_win2k_hack:
3562 win2k_install_hack = 1;
3563 break;
3564 case QEMU_OPTION_acpitable:
3565 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3566 optarg, true);
3567 if (!opts) {
3568 exit(1);
3569 }
3570 acpi_table_add(opts, &error_fatal);
3571 break;
3572 case QEMU_OPTION_smbios:
3573 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3574 optarg, false);
3575 if (!opts) {
3576 exit(1);
3577 }
3578 smbios_entry_add(opts, &error_fatal);
3579 break;
3580 case QEMU_OPTION_fwcfg:
3581 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3582 optarg, true);
3583 if (opts == NULL) {
3584 exit(1);
3585 }
3586 break;
3587 case QEMU_OPTION_preconfig:
3588 preconfig_exit_requested = false;
3589 break;
3590 case QEMU_OPTION_enable_kvm:
3591 olist = qemu_find_opts("machine");
3592 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3593 break;
3594 case QEMU_OPTION_M:
3595 case QEMU_OPTION_machine:
3596 olist = qemu_find_opts("machine");
3597 opts = qemu_opts_parse_noisily(olist, optarg, true);
3598 if (!opts) {
3599 exit(1);
3600 }
3601 break;
3602 case QEMU_OPTION_no_kvm:
3603 olist = qemu_find_opts("machine");
3604 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3605 break;
3606 case QEMU_OPTION_accel:
3607 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3608 optarg, true);
3609 optarg = qemu_opt_get(accel_opts, "accel");
3610 if (!optarg || is_help_option(optarg)) {
3611 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3612 exit(0);
3613 }
3614 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3615 false, &error_abort);
3616 qemu_opt_set(opts, "accel", optarg, &error_abort);
3617 break;
3618 case QEMU_OPTION_usb:
3619 olist = qemu_find_opts("machine");
3620 qemu_opts_parse_noisily(olist, "usb=on", false);
3621 break;
3622 case QEMU_OPTION_usbdevice:
3623 error_report("'-usbdevice' is deprecated, please use "
3624 "'-device usb-...' instead");
3625 olist = qemu_find_opts("machine");
3626 qemu_opts_parse_noisily(olist, "usb=on", false);
3627 add_device_config(DEV_USB, optarg);
3628 break;
3629 case QEMU_OPTION_device:
3630 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3631 optarg, true)) {
3632 exit(1);
3633 }
3634 break;
3635 case QEMU_OPTION_smp:
3636 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3637 optarg, true)) {
3638 exit(1);
3639 }
3640 break;
3641 case QEMU_OPTION_vnc:
3642 vnc_parse(optarg, &error_fatal);
3643 break;
3644 case QEMU_OPTION_no_acpi:
3645 acpi_enabled = 0;
3646 break;
3647 case QEMU_OPTION_no_hpet:
3648 no_hpet = 1;
3649 break;
3650 case QEMU_OPTION_no_reboot:
3651 no_reboot = 1;
3652 break;
3653 case QEMU_OPTION_no_shutdown:
3654 no_shutdown = 1;
3655 break;
3656 case QEMU_OPTION_show_cursor:
3657 cursor_hide = 0;
3658 break;
3659 case QEMU_OPTION_uuid:
3660 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3661 error_report("failed to parse UUID string: wrong format");
3662 exit(1);
3663 }
3664 qemu_uuid_set = true;
3665 break;
3666 case QEMU_OPTION_option_rom:
3667 if (nb_option_roms >= MAX_OPTION_ROMS) {
3668 error_report("too many option ROMs");
3669 exit(1);
3670 }
3671 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3672 optarg, true);
3673 if (!opts) {
3674 exit(1);
3675 }
3676 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3677 option_rom[nb_option_roms].bootindex =
3678 qemu_opt_get_number(opts, "bootindex", -1);
3679 if (!option_rom[nb_option_roms].name) {
3680 error_report("Option ROM file is not specified");
3681 exit(1);
3682 }
3683 nb_option_roms++;
3684 break;
3685 case QEMU_OPTION_semihosting:
3686 semihosting.enabled = true;
3687 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3688 break;
3689 case QEMU_OPTION_semihosting_config:
3690 semihosting.enabled = true;
3691 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3692 optarg, false);
3693 if (opts != NULL) {
3694 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3695 true);
3696 const char *target = qemu_opt_get(opts, "target");
3697 if (target != NULL) {
3698 if (strcmp("native", target) == 0) {
3699 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3700 } else if (strcmp("gdb", target) == 0) {
3701 semihosting.target = SEMIHOSTING_TARGET_GDB;
3702 } else if (strcmp("auto", target) == 0) {
3703 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3704 } else {
3705 error_report("unsupported semihosting-config %s",
3706 optarg);
3707 exit(1);
3708 }
3709 } else {
3710 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3711 }
3712 /* Set semihosting argument count and vector */
3713 qemu_opt_foreach(opts, add_semihosting_arg,
3714 &semihosting, NULL);
3715 } else {
3716 error_report("unsupported semihosting-config %s", optarg);
3717 exit(1);
3718 }
3719 break;
3720 case QEMU_OPTION_name:
3721 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3722 optarg, true);
3723 if (!opts) {
3724 exit(1);
3725 }
3726 break;
3727 case QEMU_OPTION_prom_env:
3728 if (nb_prom_envs >= MAX_PROM_ENVS) {
3729 error_report("too many prom variables");
3730 exit(1);
3731 }
3732 prom_envs[nb_prom_envs] = optarg;
3733 nb_prom_envs++;
3734 break;
3735 case QEMU_OPTION_old_param:
3736 old_param = 1;
3737 break;
3738 case QEMU_OPTION_rtc:
3739 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3740 false);
3741 if (!opts) {
3742 exit(1);
3743 }
3744 break;
3745 case QEMU_OPTION_tb_size:
3746 #ifndef CONFIG_TCG
3747 error_report("TCG is disabled");
3748 exit(1);
3749 #endif
3750 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3751 error_report("Invalid argument to -tb-size");
3752 exit(1);
3753 }
3754 break;
3755 case QEMU_OPTION_icount:
3756 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3757 optarg, true);
3758 if (!icount_opts) {
3759 exit(1);
3760 }
3761 break;
3762 case QEMU_OPTION_incoming:
3763 if (!incoming) {
3764 runstate_set(RUN_STATE_INMIGRATE);
3765 }
3766 incoming = optarg;
3767 break;
3768 case QEMU_OPTION_only_migratable:
3769 /*
3770 * TODO: we can remove this option one day, and we
3771 * should all use:
3772 *
3773 * "-global migration.only-migratable=true"
3774 */
3775 qemu_global_option("migration.only-migratable=true");
3776 break;
3777 case QEMU_OPTION_nodefaults:
3778 has_defaults = 0;
3779 break;
3780 case QEMU_OPTION_xen_domid:
3781 if (!(xen_available())) {
3782 error_report("Option not supported for this target");
3783 exit(1);
3784 }
3785 xen_domid = atoi(optarg);
3786 break;
3787 case QEMU_OPTION_xen_attach:
3788 if (!(xen_available())) {
3789 error_report("Option not supported for this target");
3790 exit(1);
3791 }
3792 xen_mode = XEN_ATTACH;
3793 break;
3794 case QEMU_OPTION_xen_domid_restrict:
3795 if (!(xen_available())) {
3796 error_report("Option not supported for this target");
3797 exit(1);
3798 }
3799 xen_domid_restrict = true;
3800 break;
3801 case QEMU_OPTION_trace:
3802 g_free(trace_file);
3803 trace_file = trace_opt_parse(optarg);
3804 break;
3805 case QEMU_OPTION_readconfig:
3806 {
3807 int ret = qemu_read_config_file(optarg);
3808 if (ret < 0) {
3809 error_report("read config %s: %s", optarg,
3810 strerror(-ret));
3811 exit(1);
3812 }
3813 break;
3814 }
3815 case QEMU_OPTION_spice:
3816 olist = qemu_find_opts("spice");
3817 if (!olist) {
3818 error_report("spice support is disabled");
3819 exit(1);
3820 }
3821 opts = qemu_opts_parse_noisily(olist, optarg, false);
3822 if (!opts) {
3823 exit(1);
3824 }
3825 display_remote++;
3826 break;
3827 case QEMU_OPTION_writeconfig:
3828 {
3829 FILE *fp;
3830 if (strcmp(optarg, "-") == 0) {
3831 fp = stdout;
3832 } else {
3833 fp = fopen(optarg, "w");
3834 if (fp == NULL) {
3835 error_report("open %s: %s", optarg,
3836 strerror(errno));
3837 exit(1);
3838 }
3839 }
3840 qemu_config_write(fp);
3841 if (fp != stdout) {
3842 fclose(fp);
3843 }
3844 break;
3845 }
3846 case QEMU_OPTION_qtest:
3847 qtest_chrdev = optarg;
3848 break;
3849 case QEMU_OPTION_qtest_log:
3850 qtest_log = optarg;
3851 break;
3852 case QEMU_OPTION_sandbox:
3853 #ifdef CONFIG_SECCOMP
3854 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3855 optarg, true);
3856 if (!opts) {
3857 exit(1);
3858 }
3859 #else
3860 error_report("-sandbox support is not enabled "
3861 "in this QEMU binary");
3862 exit(1);
3863 #endif
3864 break;
3865 case QEMU_OPTION_add_fd:
3866 #ifndef _WIN32
3867 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3868 optarg, false);
3869 if (!opts) {
3870 exit(1);
3871 }
3872 #else
3873 error_report("File descriptor passing is disabled on this "
3874 "platform");
3875 exit(1);
3876 #endif
3877 break;
3878 case QEMU_OPTION_object:
3879 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3880 optarg, true);
3881 if (!opts) {
3882 exit(1);
3883 }
3884 break;
3885 case QEMU_OPTION_realtime:
3886 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3887 optarg, false);
3888 if (!opts) {
3889 exit(1);
3890 }
3891 /* Don't override the -overcommit option if set */
3892 enable_mlock = enable_mlock ||
3893 qemu_opt_get_bool(opts, "mlock", true);
3894 break;
3895 case QEMU_OPTION_overcommit:
3896 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3897 optarg, false);
3898 if (!opts) {
3899 exit(1);
3900 }
3901 /* Don't override the -realtime option if set */
3902 enable_mlock = enable_mlock ||
3903 qemu_opt_get_bool(opts, "mem-lock", false);
3904 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3905 break;
3906 case QEMU_OPTION_msg:
3907 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3908 false);
3909 if (!opts) {
3910 exit(1);
3911 }
3912 configure_msg(opts);
3913 break;
3914 case QEMU_OPTION_dump_vmstate:
3915 if (vmstate_dump_file) {
3916 error_report("only one '-dump-vmstate' "
3917 "option may be given");
3918 exit(1);
3919 }
3920 vmstate_dump_file = fopen(optarg, "w");
3921 if (vmstate_dump_file == NULL) {
3922 error_report("open %s: %s", optarg, strerror(errno));
3923 exit(1);
3924 }
3925 break;
3926 case QEMU_OPTION_enable_sync_profile:
3927 qsp_enable();
3928 break;
3929 case QEMU_OPTION_nouserconfig:
3930 /* Nothing to be parsed here. Especially, do not error out below. */
3931 break;
3932 default:
3933 if (os_parse_cmd_args(popt->index, optarg)) {
3934 error_report("Option not supported in this build");
3935 exit(1);
3936 }
3937 }
3938 }
3939 }
3940 /*
3941 * Clear error location left behind by the loop.
3942 * Best done right after the loop. Do not insert code here!
3943 */
3944 loc_set_none();
3945
3946 replay_configure(icount_opts);
3947
3948 if (incoming && !preconfig_exit_requested) {
3949 error_report("'preconfig' and 'incoming' options are "
3950 "mutually exclusive");
3951 exit(EXIT_FAILURE);
3952 }
3953
3954 configure_rtc(qemu_find_opts_singleton("rtc"));
3955
3956 machine_class = select_machine();
3957
3958 set_memory_options(&ram_slots, &maxram_size, machine_class);
3959
3960 os_daemonize();
3961 rcu_disable_atfork();
3962
3963 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3964 error_reportf_err(err, "cannot create PID file: ");
3965 exit(1);
3966 }
3967
3968 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3969 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3970
3971 if (qemu_init_main_loop(&main_loop_err)) {
3972 error_report_err(main_loop_err);
3973 exit(1);
3974 }
3975
3976 #ifdef CONFIG_SECCOMP
3977 olist = qemu_find_opts_err("sandbox", NULL);
3978 if (olist) {
3979 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3980 }
3981 #endif
3982
3983 qemu_opts_foreach(qemu_find_opts("name"),
3984 parse_name, NULL, &error_fatal);
3985
3986 #ifndef _WIN32
3987 qemu_opts_foreach(qemu_find_opts("add-fd"),
3988 parse_add_fd, NULL, &error_fatal);
3989
3990 qemu_opts_foreach(qemu_find_opts("add-fd"),
3991 cleanup_add_fd, NULL, &error_fatal);
3992 #endif
3993
3994 current_machine = MACHINE(object_new(object_class_get_name(
3995 OBJECT_CLASS(machine_class))));
3996 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3997 exit(0);
3998 }
3999 object_property_add_child(object_get_root(), "machine",
4000 OBJECT(current_machine), &error_abort);
4001
4002 if (machine_class->minimum_page_bits) {
4003 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4004 /* This would be a board error: specifying a minimum smaller than
4005 * a target's compile-time fixed setting.
4006 */
4007 g_assert_not_reached();
4008 }
4009 }
4010
4011 cpu_exec_init_all();
4012
4013 if (machine_class->hw_version) {
4014 qemu_set_hw_version(machine_class->hw_version);
4015 }
4016
4017 if (cpu_model && is_help_option(cpu_model)) {
4018 list_cpus(stdout, &fprintf, cpu_model);
4019 exit(0);
4020 }
4021
4022 if (!trace_init_backends()) {
4023 exit(1);
4024 }
4025 trace_init_file(trace_file);
4026
4027 /* Open the logfile at this point and set the log mask if necessary.
4028 */
4029 if (log_file) {
4030 qemu_set_log_filename(log_file, &error_fatal);
4031 }
4032
4033 if (log_mask) {
4034 int mask;
4035 mask = qemu_str_to_log_mask(log_mask);
4036 if (!mask) {
4037 qemu_print_log_usage(stdout);
4038 exit(1);
4039 }
4040 qemu_set_log(mask);
4041 } else {
4042 qemu_set_log(0);
4043 }
4044
4045 /* add configured firmware directories */
4046 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4047 for (i = 0; dirs[i] != NULL; i++) {
4048 qemu_add_data_dir(dirs[i]);
4049 }
4050 g_strfreev(dirs);
4051
4052 /* try to find datadir relative to the executable path */
4053 dir = os_find_datadir();
4054 qemu_add_data_dir(dir);
4055 g_free(dir);
4056
4057 /* add the datadir specified when building */
4058 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4059
4060 /* -L help lists the data directories and exits. */
4061 if (list_data_dirs) {
4062 for (i = 0; i < data_dir_idx; i++) {
4063 printf("%s\n", data_dir[i]);
4064 }
4065 exit(0);
4066 }
4067
4068 /* machine_class: default to UP */
4069 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4070 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4071 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4072
4073 /* default to machine_class->default_cpus */
4074 smp_cpus = machine_class->default_cpus;
4075 max_cpus = machine_class->default_cpus;
4076
4077 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4078
4079 /* sanity-check smp_cpus and max_cpus against machine_class */
4080 if (smp_cpus < machine_class->min_cpus) {
4081 error_report("Invalid SMP CPUs %d. The min CPUs "
4082 "supported by machine '%s' is %d", smp_cpus,
4083 machine_class->name, machine_class->min_cpus);
4084 exit(1);
4085 }
4086 if (max_cpus > machine_class->max_cpus) {
4087 error_report("Invalid SMP CPUs %d. The max CPUs "
4088 "supported by machine '%s' is %d", max_cpus,
4089 machine_class->name, machine_class->max_cpus);
4090 exit(1);
4091 }
4092
4093 /*
4094 * Get the default machine options from the machine if it is not already
4095 * specified either by the configuration file or by the command line.
4096 */
4097 if (machine_class->default_machine_opts) {
4098 qemu_opts_set_defaults(qemu_find_opts("machine"),
4099 machine_class->default_machine_opts, 0);
4100 }
4101
4102 qemu_opts_foreach(qemu_find_opts("device"),
4103 default_driver_check, NULL, NULL);
4104 qemu_opts_foreach(qemu_find_opts("global"),
4105 default_driver_check, NULL, NULL);
4106
4107 if (!vga_model && !default_vga) {
4108 vga_interface_type = VGA_DEVICE;
4109 }
4110 if (!has_defaults || machine_class->no_serial) {
4111 default_serial = 0;
4112 }
4113 if (!has_defaults || machine_class->no_parallel) {
4114 default_parallel = 0;
4115 }
4116 if (!has_defaults || machine_class->no_floppy) {
4117 default_floppy = 0;
4118 }
4119 if (!has_defaults || machine_class->no_cdrom) {
4120 default_cdrom = 0;
4121 }
4122 if (!has_defaults || machine_class->no_sdcard) {
4123 default_sdcard = 0;
4124 }
4125 if (!has_defaults) {
4126 default_monitor = 0;
4127 default_net = 0;
4128 default_vga = 0;
4129 }
4130
4131 if (is_daemonized()) {
4132 if (!preconfig_exit_requested) {
4133 error_report("'preconfig' and 'daemonize' options are "
4134 "mutually exclusive");
4135 exit(EXIT_FAILURE);
4136 }
4137
4138 /* According to documentation and historically, -nographic redirects
4139 * serial port, parallel port and monitor to stdio, which does not work
4140 * with -daemonize. We can redirect these to null instead, but since
4141 * -nographic is legacy, let's just error out.
4142 * We disallow -nographic only if all other ports are not redirected
4143 * explicitly, to not break existing legacy setups which uses
4144 * -nographic _and_ redirects all ports explicitly - this is valid
4145 * usage, -nographic is just a no-op in this case.
4146 */
4147 if (nographic
4148 && (default_parallel || default_serial || default_monitor)) {
4149 error_report("-nographic cannot be used with -daemonize");
4150 exit(1);
4151 }
4152 #ifdef CONFIG_CURSES
4153 if (dpy.type == DISPLAY_TYPE_CURSES) {
4154 error_report("curses display cannot be used with -daemonize");
4155 exit(1);
4156 }
4157 #endif
4158 }
4159
4160 if (nographic) {
4161 if (default_parallel)
4162 add_device_config(DEV_PARALLEL, "null");
4163 if (default_serial && default_monitor) {
4164 add_device_config(DEV_SERIAL, "mon:stdio");
4165 } else {
4166 if (default_serial)
4167 add_device_config(DEV_SERIAL, "stdio");
4168 if (default_monitor)
4169 monitor_parse("stdio", "readline", false);
4170 }
4171 } else {
4172 if (default_serial)
4173 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4174 if (default_parallel)
4175 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4176 if (default_monitor)
4177 monitor_parse("vc:80Cx24C", "readline", false);
4178 }
4179
4180 #if defined(CONFIG_VNC)
4181 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4182 display_remote++;
4183 }
4184 #endif
4185 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4186 if (!qemu_display_find_default(&dpy)) {
4187 dpy.type = DISPLAY_TYPE_NONE;
4188 #if defined(CONFIG_VNC)
4189 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4190 #endif
4191 }
4192 }
4193 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4194 dpy.type = DISPLAY_TYPE_NONE;
4195 }
4196
4197 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4198 error_report("-alt-grab and -ctrl-grab are only valid "
4199 "for SDL, ignoring option");
4200 }
4201 if (dpy.has_window_close &&
4202 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4203 error_report("-no-quit is only valid for GTK and SDL, "
4204 "ignoring option");
4205 }
4206
4207 qemu_display_early_init(&dpy);
4208 qemu_console_early_init();
4209
4210 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4211 #if defined(CONFIG_OPENGL)
4212 error_report("OpenGL is not supported by the display");
4213 #else
4214 error_report("OpenGL support is disabled");
4215 #endif
4216 exit(1);
4217 }
4218
4219 page_size_init();
4220 socket_init();
4221
4222 qemu_opts_foreach(qemu_find_opts("object"),
4223 user_creatable_add_opts_foreach,
4224 object_create_initial, &error_fatal);
4225
4226 qemu_opts_foreach(qemu_find_opts("chardev"),
4227 chardev_init_func, NULL, &error_fatal);
4228
4229 #ifdef CONFIG_VIRTFS
4230 qemu_opts_foreach(qemu_find_opts("fsdev"),
4231 fsdev_init_func, NULL, &error_fatal);
4232 #endif
4233
4234 if (qemu_opts_foreach(qemu_find_opts("device"),
4235 device_help_func, NULL, NULL)) {
4236 exit(0);
4237 }
4238
4239 machine_opts = qemu_get_machine_opts();
4240 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4241 &error_fatal);
4242
4243 configure_accelerator(current_machine, argv[0]);
4244
4245 if (!qtest_enabled() && machine_class->deprecation_reason) {
4246 error_report("Machine type '%s' is deprecated: %s",
4247 machine_class->name, machine_class->deprecation_reason);
4248 }
4249
4250 /*
4251 * Register all the global properties, including accel properties,
4252 * machine properties, and user-specified ones.
4253 */
4254 register_global_properties(current_machine);
4255
4256 /*
4257 * Migration object can only be created after global properties
4258 * are applied correctly.
4259 */
4260 migration_object_init();
4261
4262 if (qtest_chrdev) {
4263 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4264 }
4265
4266 machine_opts = qemu_get_machine_opts();
4267 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4268 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4269 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4270 bios_name = qemu_opt_get(machine_opts, "firmware");
4271
4272 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4273 if (opts) {
4274 boot_order = qemu_opt_get(opts, "order");
4275 if (boot_order) {
4276 validate_bootdevices(boot_order, &error_fatal);
4277 }
4278
4279 boot_once = qemu_opt_get(opts, "once");
4280 if (boot_once) {
4281 validate_bootdevices(boot_once, &error_fatal);
4282 }
4283
4284 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4285 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4286 }
4287
4288 if (!boot_order) {
4289 boot_order = machine_class->default_boot_order;
4290 }
4291
4292 if (!kernel_cmdline) {
4293 kernel_cmdline = "";
4294 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4295 }
4296
4297 linux_boot = (kernel_filename != NULL);
4298
4299 if (!linux_boot && *kernel_cmdline != '\0') {
4300 error_report("-append only allowed with -kernel option");
4301 exit(1);
4302 }
4303
4304 if (!linux_boot && initrd_filename != NULL) {
4305 error_report("-initrd only allowed with -kernel option");
4306 exit(1);
4307 }
4308
4309 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4310 /* fall back to the -kernel/-append */
4311 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4312 }
4313
4314 os_set_line_buffering();
4315
4316 /* spice needs the timers to be initialized by this point */
4317 qemu_spice_init();
4318
4319 cpu_ticks_init();
4320 if (icount_opts) {
4321 if (!tcg_enabled()) {
4322 error_report("-icount is not allowed with hardware virtualization");
4323 exit(1);
4324 }
4325 configure_icount(icount_opts, &error_abort);
4326 qemu_opts_del(icount_opts);
4327 }
4328
4329 if (tcg_enabled()) {
4330 qemu_tcg_configure(accel_opts, &error_fatal);
4331 }
4332
4333 if (default_net) {
4334 QemuOptsList *net = qemu_find_opts("net");
4335 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4336 #ifdef CONFIG_SLIRP
4337 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4338 #endif
4339 }
4340
4341 if (net_init_clients(&err) < 0) {
4342 error_report_err(err);
4343 exit(1);
4344 }
4345
4346 qemu_opts_foreach(qemu_find_opts("object"),
4347 user_creatable_add_opts_foreach,
4348 object_create_delayed, &error_fatal);
4349
4350 tpm_init();
4351
4352 /* init the bluetooth world */
4353 if (foreach_device_config(DEV_BT, bt_parse))
4354 exit(1);
4355
4356 if (!xen_enabled()) {
4357 /* On 32-bit hosts, QEMU is limited by virtual address space */
4358 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4359 error_report("at most 2047 MB RAM can be simulated");
4360 exit(1);
4361 }
4362 }
4363
4364 blk_mig_init();
4365 ram_mig_init();
4366 dirty_bitmap_mig_init();
4367
4368 /* If the currently selected machine wishes to override the units-per-bus
4369 * property of its default HBA interface type, do so now. */
4370 if (machine_class->units_per_default_bus) {
4371 override_max_devs(machine_class->block_default_type,
4372 machine_class->units_per_default_bus);
4373 }
4374
4375 /* open the virtual block devices */
4376 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4377 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4378
4379 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4380 loc_push_restore(&bdo->loc);
4381 qmp_blockdev_add(bdo->bdo, &error_fatal);
4382 loc_pop(&bdo->loc);
4383 qapi_free_BlockdevOptions(bdo->bdo);
4384 g_free(bdo);
4385 }
4386 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4387 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4388 NULL, NULL);
4389 }
4390 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4391 &machine_class->block_default_type, &error_fatal)) {
4392 /* We printed help */
4393 exit(0);
4394 }
4395
4396 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4397 CDROM_OPTS);
4398 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4399 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4400
4401 qemu_opts_foreach(qemu_find_opts("mon"),
4402 mon_init_func, NULL, &error_fatal);
4403
4404 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4405 exit(1);
4406 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4407 exit(1);
4408 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4409 exit(1);
4410
4411 /* If no default VGA is requested, the default is "none". */
4412 if (default_vga) {
4413 if (machine_class->default_display) {
4414 vga_model = machine_class->default_display;
4415 } else if (vga_interface_available(VGA_CIRRUS)) {
4416 vga_model = "cirrus";
4417 } else if (vga_interface_available(VGA_STD)) {
4418 vga_model = "std";
4419 }
4420 }
4421 if (vga_model) {
4422 select_vgahw(vga_model);
4423 }
4424
4425 if (watchdog) {
4426 i = select_watchdog(watchdog);
4427 if (i > 0)
4428 exit (i == 1 ? 1 : 0);
4429 }
4430
4431 /* This checkpoint is required by replay to separate prior clock
4432 reading from the other reads, because timer polling functions query
4433 clock values from the log. */
4434 replay_checkpoint(CHECKPOINT_INIT);
4435 qdev_machine_init();
4436
4437 current_machine->ram_size = ram_size;
4438 current_machine->maxram_size = maxram_size;
4439 current_machine->ram_slots = ram_slots;
4440 current_machine->boot_order = boot_order;
4441
4442 /* parse features once if machine provides default cpu_type */
4443 current_machine->cpu_type = machine_class->default_cpu_type;
4444 if (cpu_model) {
4445 current_machine->cpu_type = parse_cpu_model(cpu_model);
4446 }
4447 parse_numa_opts(current_machine);
4448
4449 /* do monitor/qmp handling at preconfig state if requested */
4450 main_loop();
4451
4452 /* from here on runstate is RUN_STATE_PRELAUNCH */
4453 machine_run_board_init(current_machine);
4454
4455 realtime_init();
4456
4457 soundhw_init();
4458
4459 if (hax_enabled()) {
4460 hax_sync_vcpus();
4461 }
4462
4463 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4464 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4465
4466 /* init USB devices */
4467 if (machine_usb(current_machine)) {
4468 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4469 exit(1);
4470 }
4471
4472 /* Check if IGD GFX passthrough. */
4473 igd_gfx_passthru();
4474
4475 /* init generic devices */
4476 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4477 qemu_opts_foreach(qemu_find_opts("device"),
4478 device_init_func, NULL, &error_fatal);
4479
4480 cpu_synchronize_all_post_init();
4481
4482 rom_reset_order_override();
4483
4484 /* Did we create any drives that we failed to create a device for? */
4485 drive_check_orphaned();
4486
4487 /* Don't warn about the default network setup that you get if
4488 * no command line -net or -netdev options are specified. There
4489 * are two cases that we would otherwise complain about:
4490 * (1) board doesn't support a NIC but the implicit "-net nic"
4491 * requested one
4492 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4493 * sets up a nic that isn't connected to anything.
4494 */
4495 if (!default_net && (!qtest_enabled() || has_defaults)) {
4496 net_check_clients();
4497 }
4498
4499 if (boot_once) {
4500 qemu_boot_set(boot_once, &error_fatal);
4501 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4502 }
4503
4504 /* init local displays */
4505 ds = init_displaystate();
4506 qemu_display_init(ds, &dpy);
4507
4508 /* must be after terminal init, SDL library changes signal handlers */
4509 os_setup_signal_handling();
4510
4511 /* init remote displays */
4512 #ifdef CONFIG_VNC
4513 qemu_opts_foreach(qemu_find_opts("vnc"),
4514 vnc_init_func, NULL, &error_fatal);
4515 #endif
4516
4517 if (using_spice) {
4518 qemu_spice_display_init();
4519 }
4520
4521 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4522 exit(1);
4523 }
4524
4525 qdev_machine_creation_done();
4526
4527 /* TODO: once all bus devices are qdevified, this should be done
4528 * when bus is created by qdev.c */
4529 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4530 qemu_run_machine_init_done_notifiers();
4531
4532 if (rom_check_and_register_reset() != 0) {
4533 error_report("rom check and register reset failed");
4534 exit(1);
4535 }
4536
4537 replay_start();
4538
4539 /* This checkpoint is required by replay to separate prior clock
4540 reading from the other reads, because timer polling functions query
4541 clock values from the log. */
4542 replay_checkpoint(CHECKPOINT_RESET);
4543 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4544 register_global_state();
4545 if (loadvm) {
4546 Error *local_err = NULL;
4547 if (load_snapshot(loadvm, &local_err) < 0) {
4548 error_report_err(local_err);
4549 autostart = 0;
4550 exit(1);
4551 }
4552 }
4553 if (replay_mode != REPLAY_MODE_NONE) {
4554 replay_vmstate_init();
4555 }
4556
4557 qdev_prop_check_globals();
4558 if (vmstate_dump_file) {
4559 /* dump and exit */
4560 dump_vmstate_json_to_file(vmstate_dump_file);
4561 return 0;
4562 }
4563
4564 if (incoming) {
4565 Error *local_err = NULL;
4566 qemu_start_incoming_migration(incoming, &local_err);
4567 if (local_err) {
4568 error_reportf_err(local_err, "-incoming %s: ", incoming);
4569 exit(1);
4570 }
4571 } else if (autostart) {
4572 vm_start();
4573 }
4574
4575 accel_setup_post(current_machine);
4576 os_setup_post();
4577
4578 main_loop();
4579
4580 gdbserver_cleanup();
4581
4582 /* No more vcpu or device emulation activity beyond this point */
4583 vm_shutdown();
4584
4585 job_cancel_sync_all();
4586 bdrv_close_all();
4587
4588 res_free();
4589
4590 /* vhost-user must be cleaned up before chardevs. */
4591 tpm_cleanup();
4592 net_cleanup();
4593 audio_cleanup();
4594 monitor_cleanup();
4595 qemu_chr_cleanup();
4596 user_creatable_cleanup();
4597 migration_object_finalize();
4598 /* TODO: unref root container, check all devices are ok */
4599
4600 return 0;
4601 }
QEmu