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hw: report invalid disable-legacy|modern usage for virtio-1-only devs
[qemu/ar7.git] / vl.c
blob201144b1628ae49725826d93c1a3785683bf3a0d
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
33
34 #ifdef CONFIG_SDL
35 #if defined(__APPLE__) || defined(main)
36 #include <SDL.h>
37 int qemu_main(int argc, char **argv, char **envp);
38 int main(int argc, char **argv)
39 {
40 return qemu_main(argc, argv, NULL);
41 }
42 #undef main
43 #define main qemu_main
44 #endif
45 #endif /* CONFIG_SDL */
46
47 #ifdef CONFIG_COCOA
48 #undef main
49 #define main qemu_main
50 #endif /* CONFIG_COCOA */
51
52
53 #include "qemu/error-report.h"
54 #include "qemu/sockets.h"
55 #include "hw/hw.h"
56 #include "hw/boards.h"
57 #include "sysemu/accel.h"
58 #include "hw/usb.h"
59 #include "hw/isa/isa.h"
60 #include "hw/scsi/scsi.h"
61 #include "hw/display/vga.h"
62 #include "hw/bt.h"
63 #include "sysemu/watchdog.h"
64 #include "hw/firmware/smbios.h"
65 #include "hw/acpi/acpi.h"
66 #include "hw/xen/xen.h"
67 #include "hw/qdev.h"
68 #include "hw/loader.h"
69 #include "monitor/qdev.h"
70 #include "sysemu/bt.h"
71 #include "net/net.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
75 #include "ui/input.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
82 #include "qemu/log.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
102 #ifdef CONFIG_VIRTFS
103 #include "fsdev/qemu-fsdev.h"
104 #endif
105 #include "sysemu/qtest.h"
106
107 #include "disas/disas.h"
108
109 #include "trace-root.h"
110 #include "trace/control.h"
111 #include "qemu/queue.h"
112 #include "sysemu/arch_init.h"
113
114 #include "ui/qemu-spice.h"
115 #include "qapi/string-input-visitor.h"
116 #include "qapi/opts-visitor.h"
117 #include "qapi/clone-visitor.h"
118 #include "qom/object_interfaces.h"
119 #include "exec/semihost.h"
120 #include "crypto/init.h"
121 #include "sysemu/replay.h"
122 #include "qapi/qapi-events-run-state.h"
123 #include "qapi/qapi-visit-block-core.h"
124 #include "qapi/qapi-visit-ui.h"
125 #include "qapi/qapi-commands-block-core.h"
126 #include "qapi/qapi-commands-misc.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133
134 static const char *data_dir[16];
135 static int data_dir_idx;
136 const char *bios_name = NULL;
137 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
138 int display_opengl;
139 const char* keyboard_layout = NULL;
140 ram_addr_t ram_size;
141 const char *mem_path = NULL;
142 int mem_prealloc = 0; /* force preallocation of physical target memory */
143 bool enable_mlock = false;
144 bool enable_cpu_pm = false;
145 int nb_nics;
146 NICInfo nd_table[MAX_NICS];
147 int autostart;
148 static enum {
149 RTC_BASE_UTC,
150 RTC_BASE_LOCALTIME,
151 RTC_BASE_DATETIME,
152 } rtc_base_type = RTC_BASE_UTC;
153 static time_t rtc_ref_start_datetime;
154 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
155 static int rtc_host_datetime_offset = -1; /* valid & used only with
156 RTC_BASE_DATETIME */
157 QEMUClockType rtc_clock;
158 int vga_interface_type = VGA_NONE;
159 static DisplayOptions dpy;
160 static int num_serial_hds;
161 static Chardev **serial_hds;
162 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
163 int win2k_install_hack = 0;
164 int singlestep = 0;
165 int smp_cpus;
166 unsigned int max_cpus;
167 int smp_cores = 1;
168 int smp_threads = 1;
169 int acpi_enabled = 1;
170 int no_hpet = 0;
171 int fd_bootchk = 1;
172 static int no_reboot;
173 int no_shutdown = 0;
174 int cursor_hide = 1;
175 int graphic_rotate = 0;
176 const char *watchdog;
177 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
178 int nb_option_roms;
179 int old_param = 0;
180 const char *qemu_name;
181 int alt_grab = 0;
182 int ctrl_grab = 0;
183 unsigned int nb_prom_envs = 0;
184 const char *prom_envs[MAX_PROM_ENVS];
185 int boot_menu;
186 bool boot_strict;
187 uint8_t *boot_splash_filedata;
188 int only_migratable; /* turn it off unless user states otherwise */
189 bool wakeup_suspend_enabled;
190
191 int icount_align_option;
192
193 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
194 * little-endian "wire format" described in the SMBIOS 2.6 specification.
195 */
196 QemuUUID qemu_uuid;
197 bool qemu_uuid_set;
198
199 static NotifierList exit_notifiers =
200 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
201
202 static NotifierList machine_init_done_notifiers =
203 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
204
205 bool xen_allowed;
206 uint32_t xen_domid;
207 enum xen_mode xen_mode = XEN_EMULATE;
208 bool xen_domid_restrict;
209
210 static int has_defaults = 1;
211 static int default_serial = 1;
212 static int default_parallel = 1;
213 static int default_monitor = 1;
214 static int default_floppy = 1;
215 static int default_cdrom = 1;
216 static int default_sdcard = 1;
217 static int default_vga = 1;
218 static int default_net = 1;
219
220 static struct {
221 const char *driver;
222 int *flag;
223 } default_list[] = {
224 { .driver = "isa-serial", .flag = &default_serial },
225 { .driver = "isa-parallel", .flag = &default_parallel },
226 { .driver = "isa-fdc", .flag = &default_floppy },
227 { .driver = "floppy", .flag = &default_floppy },
228 { .driver = "ide-cd", .flag = &default_cdrom },
229 { .driver = "ide-hd", .flag = &default_cdrom },
230 { .driver = "ide-drive", .flag = &default_cdrom },
231 { .driver = "scsi-cd", .flag = &default_cdrom },
232 { .driver = "scsi-hd", .flag = &default_cdrom },
233 { .driver = "VGA", .flag = &default_vga },
234 { .driver = "isa-vga", .flag = &default_vga },
235 { .driver = "cirrus-vga", .flag = &default_vga },
236 { .driver = "isa-cirrus-vga", .flag = &default_vga },
237 { .driver = "vmware-svga", .flag = &default_vga },
238 { .driver = "qxl-vga", .flag = &default_vga },
239 { .driver = "virtio-vga", .flag = &default_vga },
240 { .driver = "ati-vga", .flag = &default_vga },
241 };
242
243 static QemuOptsList qemu_rtc_opts = {
244 .name = "rtc",
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
246 .merge_lists = true,
247 .desc = {
248 {
249 .name = "base",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "clock",
253 .type = QEMU_OPT_STRING,
254 },{
255 .name = "driftfix",
256 .type = QEMU_OPT_STRING,
257 },
258 { /* end of list */ }
259 },
260 };
261
262 static QemuOptsList qemu_option_rom_opts = {
263 .name = "option-rom",
264 .implied_opt_name = "romfile",
265 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
266 .desc = {
267 {
268 .name = "bootindex",
269 .type = QEMU_OPT_NUMBER,
270 }, {
271 .name = "romfile",
272 .type = QEMU_OPT_STRING,
273 },
274 { /* end of list */ }
275 },
276 };
277
278 static QemuOptsList qemu_machine_opts = {
279 .name = "machine",
280 .implied_opt_name = "type",
281 .merge_lists = true,
282 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
283 .desc = {
284 /*
285 * no elements => accept any
286 * sanity checking will happen later
287 * when setting machine properties
288 */
289 { }
290 },
291 };
292
293 static QemuOptsList qemu_accel_opts = {
294 .name = "accel",
295 .implied_opt_name = "accel",
296 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
297 .merge_lists = true,
298 .desc = {
299 {
300 .name = "accel",
301 .type = QEMU_OPT_STRING,
302 .help = "Select the type of accelerator",
303 },
304 {
305 .name = "thread",
306 .type = QEMU_OPT_STRING,
307 .help = "Enable/disable multi-threaded TCG",
308 },
309 { /* end of list */ }
310 },
311 };
312
313 static QemuOptsList qemu_boot_opts = {
314 .name = "boot-opts",
315 .implied_opt_name = "order",
316 .merge_lists = true,
317 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
318 .desc = {
319 {
320 .name = "order",
321 .type = QEMU_OPT_STRING,
322 }, {
323 .name = "once",
324 .type = QEMU_OPT_STRING,
325 }, {
326 .name = "menu",
327 .type = QEMU_OPT_BOOL,
328 }, {
329 .name = "splash",
330 .type = QEMU_OPT_STRING,
331 }, {
332 .name = "splash-time",
333 .type = QEMU_OPT_NUMBER,
334 }, {
335 .name = "reboot-timeout",
336 .type = QEMU_OPT_NUMBER,
337 }, {
338 .name = "strict",
339 .type = QEMU_OPT_BOOL,
340 },
341 { /*End of list */ }
342 },
343 };
344
345 static QemuOptsList qemu_add_fd_opts = {
346 .name = "add-fd",
347 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
348 .desc = {
349 {
350 .name = "fd",
351 .type = QEMU_OPT_NUMBER,
352 .help = "file descriptor of which a duplicate is added to fd set",
353 },{
354 .name = "set",
355 .type = QEMU_OPT_NUMBER,
356 .help = "ID of the fd set to add fd to",
357 },{
358 .name = "opaque",
359 .type = QEMU_OPT_STRING,
360 .help = "free-form string used to describe fd",
361 },
362 { /* end of list */ }
363 },
364 };
365
366 static QemuOptsList qemu_object_opts = {
367 .name = "object",
368 .implied_opt_name = "qom-type",
369 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
370 .desc = {
371 { }
372 },
373 };
374
375 static QemuOptsList qemu_tpmdev_opts = {
376 .name = "tpmdev",
377 .implied_opt_name = "type",
378 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
379 .desc = {
380 /* options are defined in the TPM backends */
381 { /* end of list */ }
382 },
383 };
384
385 static QemuOptsList qemu_realtime_opts = {
386 .name = "realtime",
387 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
388 .desc = {
389 {
390 .name = "mlock",
391 .type = QEMU_OPT_BOOL,
392 },
393 { /* end of list */ }
394 },
395 };
396
397 static QemuOptsList qemu_overcommit_opts = {
398 .name = "overcommit",
399 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
400 .desc = {
401 {
402 .name = "mem-lock",
403 .type = QEMU_OPT_BOOL,
404 },
405 {
406 .name = "cpu-pm",
407 .type = QEMU_OPT_BOOL,
408 },
409 { /* end of list */ }
410 },
411 };
412
413 static QemuOptsList qemu_msg_opts = {
414 .name = "msg",
415 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
416 .desc = {
417 {
418 .name = "timestamp",
419 .type = QEMU_OPT_BOOL,
420 },
421 { /* end of list */ }
422 },
423 };
424
425 static QemuOptsList qemu_name_opts = {
426 .name = "name",
427 .implied_opt_name = "guest",
428 .merge_lists = true,
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
430 .desc = {
431 {
432 .name = "guest",
433 .type = QEMU_OPT_STRING,
434 .help = "Sets the name of the guest.\n"
435 "This name will be displayed in the SDL window caption.\n"
436 "The name will also be used for the VNC server",
437 }, {
438 .name = "process",
439 .type = QEMU_OPT_STRING,
440 .help = "Sets the name of the QEMU process, as shown in top etc",
441 }, {
442 .name = "debug-threads",
443 .type = QEMU_OPT_BOOL,
444 .help = "When enabled, name the individual threads; defaults off.\n"
445 "NOTE: The thread names are for debugging and not a\n"
446 "stable API.",
447 },
448 { /* End of list */ }
449 },
450 };
451
452 static QemuOptsList qemu_mem_opts = {
453 .name = "memory",
454 .implied_opt_name = "size",
455 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
456 .merge_lists = true,
457 .desc = {
458 {
459 .name = "size",
460 .type = QEMU_OPT_SIZE,
461 },
462 {
463 .name = "slots",
464 .type = QEMU_OPT_NUMBER,
465 },
466 {
467 .name = "maxmem",
468 .type = QEMU_OPT_SIZE,
469 },
470 { /* end of list */ }
471 },
472 };
473
474 static QemuOptsList qemu_icount_opts = {
475 .name = "icount",
476 .implied_opt_name = "shift",
477 .merge_lists = true,
478 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
479 .desc = {
480 {
481 .name = "shift",
482 .type = QEMU_OPT_STRING,
483 }, {
484 .name = "align",
485 .type = QEMU_OPT_BOOL,
486 }, {
487 .name = "sleep",
488 .type = QEMU_OPT_BOOL,
489 }, {
490 .name = "rr",
491 .type = QEMU_OPT_STRING,
492 }, {
493 .name = "rrfile",
494 .type = QEMU_OPT_STRING,
495 }, {
496 .name = "rrsnapshot",
497 .type = QEMU_OPT_STRING,
498 },
499 { /* end of list */ }
500 },
501 };
502
503 static QemuOptsList qemu_semihosting_config_opts = {
504 .name = "semihosting-config",
505 .implied_opt_name = "enable",
506 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
507 .desc = {
508 {
509 .name = "enable",
510 .type = QEMU_OPT_BOOL,
511 }, {
512 .name = "target",
513 .type = QEMU_OPT_STRING,
514 }, {
515 .name = "arg",
516 .type = QEMU_OPT_STRING,
517 },
518 { /* end of list */ }
519 },
520 };
521
522 static QemuOptsList qemu_fw_cfg_opts = {
523 .name = "fw_cfg",
524 .implied_opt_name = "name",
525 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
526 .desc = {
527 {
528 .name = "name",
529 .type = QEMU_OPT_STRING,
530 .help = "Sets the fw_cfg name of the blob to be inserted",
531 }, {
532 .name = "file",
533 .type = QEMU_OPT_STRING,
534 .help = "Sets the name of the file from which "
535 "the fw_cfg blob will be loaded",
536 }, {
537 .name = "string",
538 .type = QEMU_OPT_STRING,
539 .help = "Sets content of the blob to be inserted from a string",
540 },
541 { /* end of list */ }
542 },
543 };
544
545 /**
546 * Get machine options
547 *
548 * Returns: machine options (never null).
549 */
550 QemuOpts *qemu_get_machine_opts(void)
551 {
552 return qemu_find_opts_singleton("machine");
553 }
554
555 const char *qemu_get_vm_name(void)
556 {
557 return qemu_name;
558 }
559
560 static void res_free(void)
561 {
562 g_free(boot_splash_filedata);
563 boot_splash_filedata = NULL;
564 }
565
566 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
567 {
568 const char *driver = qemu_opt_get(opts, "driver");
569 int i;
570
571 if (!driver)
572 return 0;
573 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
574 if (strcmp(default_list[i].driver, driver) != 0)
575 continue;
576 *(default_list[i].flag) = 0;
577 }
578 return 0;
579 }
580
581 /***********************************************************/
582 /* QEMU state */
583
584 static RunState current_run_state = RUN_STATE_PRECONFIG;
585
586 /* We use RUN_STATE__MAX but any invalid value will do */
587 static RunState vmstop_requested = RUN_STATE__MAX;
588 static QemuMutex vmstop_lock;
589
590 typedef struct {
591 RunState from;
592 RunState to;
593 } RunStateTransition;
594
595 static const RunStateTransition runstate_transitions_def[] = {
596 /* from -> to */
597 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
598 /* Early switch to inmigrate state to allow -incoming CLI option work
599 * as it used to. TODO: delay actual switching to inmigrate state to
600 * the point after machine is built and remove this hack.
601 */
602 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
603
604 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
605 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
607
608 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
609 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
610 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
611 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
612 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
613 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
615 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
616 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
617 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
618 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
619 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
620
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
622 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
624
625 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
626 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
627 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
628
629 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
630 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
632 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
633 { RUN_STATE_PAUSED, RUN_STATE_COLO},
634
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
636 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
638
639 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
640 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
641 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
642
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
648
649 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
650 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
651
652 { RUN_STATE_COLO, RUN_STATE_RUNNING },
653
654 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
655 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
656 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
657 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
658 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
660 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
661 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
662 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
663 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
664 { RUN_STATE_RUNNING, RUN_STATE_COLO},
665
666 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
667
668 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
669 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
670 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
671
672 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
673 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
674 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
675 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
677 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
678
679 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
680 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
681 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
682 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
683
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
685 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
686 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
687
688 { RUN_STATE__MAX, RUN_STATE__MAX },
689 };
690
691 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
692
693 bool runstate_check(RunState state)
694 {
695 return current_run_state == state;
696 }
697
698 bool runstate_store(char *str, size_t size)
699 {
700 const char *state = RunState_str(current_run_state);
701 size_t len = strlen(state) + 1;
702
703 if (len > size) {
704 return false;
705 }
706 memcpy(str, state, len);
707 return true;
708 }
709
710 static void runstate_init(void)
711 {
712 const RunStateTransition *p;
713
714 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
715 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
716 runstate_valid_transitions[p->from][p->to] = true;
717 }
718
719 qemu_mutex_init(&vmstop_lock);
720 }
721
722 /* This function will abort() on invalid state transitions */
723 void runstate_set(RunState new_state)
724 {
725 assert(new_state < RUN_STATE__MAX);
726
727 trace_runstate_set(current_run_state, RunState_str(current_run_state),
728 new_state, RunState_str(new_state));
729
730 if (current_run_state == new_state) {
731 return;
732 }
733
734 if (!runstate_valid_transitions[current_run_state][new_state]) {
735 error_report("invalid runstate transition: '%s' -> '%s'",
736 RunState_str(current_run_state),
737 RunState_str(new_state));
738 abort();
739 }
740
741 current_run_state = new_state;
742 }
743
744 int runstate_is_running(void)
745 {
746 return runstate_check(RUN_STATE_RUNNING);
747 }
748
749 bool runstate_needs_reset(void)
750 {
751 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
752 runstate_check(RUN_STATE_SHUTDOWN);
753 }
754
755 StatusInfo *qmp_query_status(Error **errp)
756 {
757 StatusInfo *info = g_malloc0(sizeof(*info));
758
759 info->running = runstate_is_running();
760 info->singlestep = singlestep;
761 info->status = current_run_state;
762
763 return info;
764 }
765
766 bool qemu_vmstop_requested(RunState *r)
767 {
768 qemu_mutex_lock(&vmstop_lock);
769 *r = vmstop_requested;
770 vmstop_requested = RUN_STATE__MAX;
771 qemu_mutex_unlock(&vmstop_lock);
772 return *r < RUN_STATE__MAX;
773 }
774
775 void qemu_system_vmstop_request_prepare(void)
776 {
777 qemu_mutex_lock(&vmstop_lock);
778 }
779
780 void qemu_system_vmstop_request(RunState state)
781 {
782 vmstop_requested = state;
783 qemu_mutex_unlock(&vmstop_lock);
784 qemu_notify_event();
785 }
786
787 /***********************************************************/
788 /* RTC reference time/date access */
789 static time_t qemu_ref_timedate(QEMUClockType clock)
790 {
791 time_t value = qemu_clock_get_ms(clock) / 1000;
792 switch (clock) {
793 case QEMU_CLOCK_REALTIME:
794 value -= rtc_realtime_clock_offset;
795 /* no break */
796 case QEMU_CLOCK_VIRTUAL:
797 value += rtc_ref_start_datetime;
798 break;
799 case QEMU_CLOCK_HOST:
800 if (rtc_base_type == RTC_BASE_DATETIME) {
801 value -= rtc_host_datetime_offset;
802 }
803 break;
804 default:
805 assert(0);
806 }
807 return value;
808 }
809
810 void qemu_get_timedate(struct tm *tm, int offset)
811 {
812 time_t ti = qemu_ref_timedate(rtc_clock);
813
814 ti += offset;
815
816 switch (rtc_base_type) {
817 case RTC_BASE_DATETIME:
818 case RTC_BASE_UTC:
819 gmtime_r(&ti, tm);
820 break;
821 case RTC_BASE_LOCALTIME:
822 localtime_r(&ti, tm);
823 break;
824 }
825 }
826
827 int qemu_timedate_diff(struct tm *tm)
828 {
829 time_t seconds;
830
831 switch (rtc_base_type) {
832 case RTC_BASE_DATETIME:
833 case RTC_BASE_UTC:
834 seconds = mktimegm(tm);
835 break;
836 case RTC_BASE_LOCALTIME:
837 {
838 struct tm tmp = *tm;
839 tmp.tm_isdst = -1; /* use timezone to figure it out */
840 seconds = mktime(&tmp);
841 break;
842 }
843 default:
844 abort();
845 }
846
847 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
848 }
849
850 static void configure_rtc_base_datetime(const char *startdate)
851 {
852 time_t rtc_start_datetime;
853 struct tm tm;
854
855 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
856 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
857 /* OK */
858 } else if (sscanf(startdate, "%d-%d-%d",
859 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
860 tm.tm_hour = 0;
861 tm.tm_min = 0;
862 tm.tm_sec = 0;
863 } else {
864 goto date_fail;
865 }
866 tm.tm_year -= 1900;
867 tm.tm_mon--;
868 rtc_start_datetime = mktimegm(&tm);
869 if (rtc_start_datetime == -1) {
870 date_fail:
871 error_report("invalid datetime format");
872 error_printf("valid formats: "
873 "'2006-06-17T16:01:21' or '2006-06-17'\n");
874 exit(1);
875 }
876 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
877 rtc_ref_start_datetime = rtc_start_datetime;
878 }
879
880 static void configure_rtc(QemuOpts *opts)
881 {
882 const char *value;
883
884 /* Set defaults */
885 rtc_clock = QEMU_CLOCK_HOST;
886 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
887 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
888
889 value = qemu_opt_get(opts, "base");
890 if (value) {
891 if (!strcmp(value, "utc")) {
892 rtc_base_type = RTC_BASE_UTC;
893 } else if (!strcmp(value, "localtime")) {
894 Error *blocker = NULL;
895 rtc_base_type = RTC_BASE_LOCALTIME;
896 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
897 "-rtc base=localtime");
898 replay_add_blocker(blocker);
899 } else {
900 rtc_base_type = RTC_BASE_DATETIME;
901 configure_rtc_base_datetime(value);
902 }
903 }
904 value = qemu_opt_get(opts, "clock");
905 if (value) {
906 if (!strcmp(value, "host")) {
907 rtc_clock = QEMU_CLOCK_HOST;
908 } else if (!strcmp(value, "rt")) {
909 rtc_clock = QEMU_CLOCK_REALTIME;
910 } else if (!strcmp(value, "vm")) {
911 rtc_clock = QEMU_CLOCK_VIRTUAL;
912 } else {
913 error_report("invalid option value '%s'", value);
914 exit(1);
915 }
916 }
917 value = qemu_opt_get(opts, "driftfix");
918 if (value) {
919 if (!strcmp(value, "slew")) {
920 static GlobalProperty slew_lost_ticks = {
921 .driver = "mc146818rtc",
922 .property = "lost_tick_policy",
923 .value = "slew",
924 };
925
926 qdev_prop_register_global(&slew_lost_ticks);
927 } else if (!strcmp(value, "none")) {
928 /* discard is default */
929 } else {
930 error_report("invalid option value '%s'", value);
931 exit(1);
932 }
933 }
934 }
935
936 /***********************************************************/
937 /* Bluetooth support */
938 static int nb_hcis;
939 static int cur_hci;
940 static struct HCIInfo *hci_table[MAX_NICS];
941
942 struct HCIInfo *qemu_next_hci(void)
943 {
944 if (cur_hci == nb_hcis)
945 return &null_hci;
946
947 return hci_table[cur_hci++];
948 }
949
950 static int bt_hci_parse(const char *str)
951 {
952 struct HCIInfo *hci;
953 bdaddr_t bdaddr;
954
955 if (nb_hcis >= MAX_NICS) {
956 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
957 return -1;
958 }
959
960 hci = hci_init(str);
961 if (!hci)
962 return -1;
963
964 bdaddr.b[0] = 0x52;
965 bdaddr.b[1] = 0x54;
966 bdaddr.b[2] = 0x00;
967 bdaddr.b[3] = 0x12;
968 bdaddr.b[4] = 0x34;
969 bdaddr.b[5] = 0x56 + nb_hcis;
970 hci->bdaddr_set(hci, bdaddr.b);
971
972 hci_table[nb_hcis++] = hci;
973
974 return 0;
975 }
976
977 static void bt_vhci_add(int vlan_id)
978 {
979 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
980
981 if (!vlan->slave)
982 warn_report("adding a VHCI to an empty scatternet %i",
983 vlan_id);
984
985 bt_vhci_init(bt_new_hci(vlan));
986 }
987
988 static struct bt_device_s *bt_device_add(const char *opt)
989 {
990 struct bt_scatternet_s *vlan;
991 int vlan_id = 0;
992 char *endp = strstr(opt, ",vlan=");
993 int len = (endp ? endp - opt : strlen(opt)) + 1;
994 char devname[10];
995
996 pstrcpy(devname, MIN(sizeof(devname), len), opt);
997
998 if (endp) {
999 vlan_id = strtol(endp + 6, &endp, 0);
1000 if (*endp) {
1001 error_report("unrecognised bluetooth vlan Id");
1002 return 0;
1003 }
1004 }
1005
1006 vlan = qemu_find_bt_vlan(vlan_id);
1007
1008 if (!vlan->slave)
1009 warn_report("adding a slave device to an empty scatternet %i",
1010 vlan_id);
1011
1012 if (!strcmp(devname, "keyboard"))
1013 return bt_keyboard_init(vlan);
1014
1015 error_report("unsupported bluetooth device '%s'", devname);
1016 return 0;
1017 }
1018
1019 static int bt_parse(const char *opt)
1020 {
1021 const char *endp, *p;
1022 int vlan;
1023
1024 if (strstart(opt, "hci", &endp)) {
1025 if (!*endp || *endp == ',') {
1026 if (*endp)
1027 if (!strstart(endp, ",vlan=", 0))
1028 opt = endp + 1;
1029
1030 return bt_hci_parse(opt);
1031 }
1032 } else if (strstart(opt, "vhci", &endp)) {
1033 if (!*endp || *endp == ',') {
1034 if (*endp) {
1035 if (strstart(endp, ",vlan=", &p)) {
1036 vlan = strtol(p, (char **) &endp, 0);
1037 if (*endp) {
1038 error_report("bad scatternet '%s'", p);
1039 return 1;
1040 }
1041 } else {
1042 error_report("bad parameter '%s'", endp + 1);
1043 return 1;
1044 }
1045 } else
1046 vlan = 0;
1047
1048 bt_vhci_add(vlan);
1049 return 0;
1050 }
1051 } else if (strstart(opt, "device:", &endp))
1052 return !bt_device_add(endp);
1053
1054 error_report("bad bluetooth parameter '%s'", opt);
1055 return 1;
1056 }
1057
1058 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1059 {
1060 const char *proc_name;
1061
1062 if (qemu_opt_get(opts, "debug-threads")) {
1063 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1064 }
1065 qemu_name = qemu_opt_get(opts, "guest");
1066
1067 proc_name = qemu_opt_get(opts, "process");
1068 if (proc_name) {
1069 os_set_proc_name(proc_name);
1070 }
1071
1072 return 0;
1073 }
1074
1075 bool defaults_enabled(void)
1076 {
1077 return has_defaults;
1078 }
1079
1080 #ifndef _WIN32
1081 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1082 {
1083 int fd, dupfd, flags;
1084 int64_t fdset_id;
1085 const char *fd_opaque = NULL;
1086 AddfdInfo *fdinfo;
1087
1088 fd = qemu_opt_get_number(opts, "fd", -1);
1089 fdset_id = qemu_opt_get_number(opts, "set", -1);
1090 fd_opaque = qemu_opt_get(opts, "opaque");
1091
1092 if (fd < 0) {
1093 error_setg(errp, "fd option is required and must be non-negative");
1094 return -1;
1095 }
1096
1097 if (fd <= STDERR_FILENO) {
1098 error_setg(errp, "fd cannot be a standard I/O stream");
1099 return -1;
1100 }
1101
1102 /*
1103 * All fds inherited across exec() necessarily have FD_CLOEXEC
1104 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1105 */
1106 flags = fcntl(fd, F_GETFD);
1107 if (flags == -1 || (flags & FD_CLOEXEC)) {
1108 error_setg(errp, "fd is not valid or already in use");
1109 return -1;
1110 }
1111
1112 if (fdset_id < 0) {
1113 error_setg(errp, "set option is required and must be non-negative");
1114 return -1;
1115 }
1116
1117 #ifdef F_DUPFD_CLOEXEC
1118 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1119 #else
1120 dupfd = dup(fd);
1121 if (dupfd != -1) {
1122 qemu_set_cloexec(dupfd);
1123 }
1124 #endif
1125 if (dupfd == -1) {
1126 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1127 return -1;
1128 }
1129
1130 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1131 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1132 &error_abort);
1133 g_free(fdinfo);
1134
1135 return 0;
1136 }
1137
1138 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1139 {
1140 int fd;
1141
1142 fd = qemu_opt_get_number(opts, "fd", -1);
1143 close(fd);
1144
1145 return 0;
1146 }
1147 #endif
1148
1149 /***********************************************************/
1150 /* QEMU Block devices */
1151
1152 #define HD_OPTS "media=disk"
1153 #define CDROM_OPTS "media=cdrom"
1154 #define FD_OPTS ""
1155 #define PFLASH_OPTS ""
1156 #define MTD_OPTS ""
1157 #define SD_OPTS ""
1158
1159 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1160 {
1161 BlockInterfaceType *block_default_type = opaque;
1162
1163 return drive_new(opts, *block_default_type, errp) == NULL;
1164 }
1165
1166 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1167 {
1168 if (qemu_opt_get(opts, "snapshot") == NULL) {
1169 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1170 }
1171 return 0;
1172 }
1173
1174 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1175 int index, const char *optstr)
1176 {
1177 QemuOpts *opts;
1178 DriveInfo *dinfo;
1179
1180 if (!enable || drive_get_by_index(type, index)) {
1181 return;
1182 }
1183
1184 opts = drive_add(type, index, NULL, optstr);
1185 if (snapshot) {
1186 drive_enable_snapshot(NULL, opts, NULL);
1187 }
1188
1189 dinfo = drive_new(opts, type, &error_abort);
1190 dinfo->is_default = true;
1191
1192 }
1193
1194 typedef struct BlockdevOptionsQueueEntry {
1195 BlockdevOptions *bdo;
1196 Location loc;
1197 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1198 } BlockdevOptionsQueueEntry;
1199
1200 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1201
1202 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1203 MachineClass *machine_class, int snapshot)
1204 {
1205 /*
1206 * If the currently selected machine wishes to override the
1207 * units-per-bus property of its default HBA interface type, do so
1208 * now.
1209 */
1210 if (machine_class->units_per_default_bus) {
1211 override_max_devs(machine_class->block_default_type,
1212 machine_class->units_per_default_bus);
1213 }
1214
1215 /* open the virtual block devices */
1216 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1217 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1218
1219 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1220 loc_push_restore(&bdo->loc);
1221 qmp_blockdev_add(bdo->bdo, &error_fatal);
1222 loc_pop(&bdo->loc);
1223 qapi_free_BlockdevOptions(bdo->bdo);
1224 g_free(bdo);
1225 }
1226 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1227 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1228 NULL, NULL);
1229 }
1230 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1231 &machine_class->block_default_type, &error_fatal)) {
1232 /* We printed help */
1233 exit(0);
1234 }
1235
1236 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1237 CDROM_OPTS);
1238 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1239 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1240
1241 }
1242
1243 static QemuOptsList qemu_smp_opts = {
1244 .name = "smp-opts",
1245 .implied_opt_name = "cpus",
1246 .merge_lists = true,
1247 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1248 .desc = {
1249 {
1250 .name = "cpus",
1251 .type = QEMU_OPT_NUMBER,
1252 }, {
1253 .name = "sockets",
1254 .type = QEMU_OPT_NUMBER,
1255 }, {
1256 .name = "cores",
1257 .type = QEMU_OPT_NUMBER,
1258 }, {
1259 .name = "threads",
1260 .type = QEMU_OPT_NUMBER,
1261 }, {
1262 .name = "maxcpus",
1263 .type = QEMU_OPT_NUMBER,
1264 },
1265 { /*End of list */ }
1266 },
1267 };
1268
1269 static void smp_parse(QemuOpts *opts)
1270 {
1271 if (opts) {
1272 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1273 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1274 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1275 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1276
1277 /* compute missing values, prefer sockets over cores over threads */
1278 if (cpus == 0 || sockets == 0) {
1279 cores = cores > 0 ? cores : 1;
1280 threads = threads > 0 ? threads : 1;
1281 if (cpus == 0) {
1282 sockets = sockets > 0 ? sockets : 1;
1283 cpus = cores * threads * sockets;
1284 } else {
1285 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1286 sockets = max_cpus / (cores * threads);
1287 }
1288 } else if (cores == 0) {
1289 threads = threads > 0 ? threads : 1;
1290 cores = cpus / (sockets * threads);
1291 cores = cores > 0 ? cores : 1;
1292 } else if (threads == 0) {
1293 threads = cpus / (cores * sockets);
1294 threads = threads > 0 ? threads : 1;
1295 } else if (sockets * cores * threads < cpus) {
1296 error_report("cpu topology: "
1297 "sockets (%u) * cores (%u) * threads (%u) < "
1298 "smp_cpus (%u)",
1299 sockets, cores, threads, cpus);
1300 exit(1);
1301 }
1302
1303 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1304
1305 if (max_cpus < cpus) {
1306 error_report("maxcpus must be equal to or greater than smp");
1307 exit(1);
1308 }
1309
1310 if (sockets * cores * threads > max_cpus) {
1311 error_report("cpu topology: "
1312 "sockets (%u) * cores (%u) * threads (%u) > "
1313 "maxcpus (%u)",
1314 sockets, cores, threads, max_cpus);
1315 exit(1);
1316 }
1317
1318 if (sockets * cores * threads != max_cpus) {
1319 warn_report("Invalid CPU topology deprecated: "
1320 "sockets (%u) * cores (%u) * threads (%u) "
1321 "!= maxcpus (%u)",
1322 sockets, cores, threads, max_cpus);
1323 }
1324
1325 smp_cpus = cpus;
1326 smp_cores = cores;
1327 smp_threads = threads;
1328 }
1329
1330 if (smp_cpus > 1) {
1331 Error *blocker = NULL;
1332 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1333 replay_add_blocker(blocker);
1334 }
1335 }
1336
1337 static void realtime_init(void)
1338 {
1339 if (enable_mlock) {
1340 if (os_mlock() < 0) {
1341 error_report("locking memory failed");
1342 exit(1);
1343 }
1344 }
1345 }
1346
1347
1348 static void configure_msg(QemuOpts *opts)
1349 {
1350 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1351 }
1352
1353 /***********************************************************/
1354 /* Semihosting */
1355
1356 typedef struct SemihostingConfig {
1357 bool enabled;
1358 SemihostingTarget target;
1359 const char **argv;
1360 int argc;
1361 const char *cmdline; /* concatenated argv */
1362 } SemihostingConfig;
1363
1364 static SemihostingConfig semihosting;
1365
1366 bool semihosting_enabled(void)
1367 {
1368 return semihosting.enabled;
1369 }
1370
1371 SemihostingTarget semihosting_get_target(void)
1372 {
1373 return semihosting.target;
1374 }
1375
1376 const char *semihosting_get_arg(int i)
1377 {
1378 if (i >= semihosting.argc) {
1379 return NULL;
1380 }
1381 return semihosting.argv[i];
1382 }
1383
1384 int semihosting_get_argc(void)
1385 {
1386 return semihosting.argc;
1387 }
1388
1389 const char *semihosting_get_cmdline(void)
1390 {
1391 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1392 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1393 }
1394 return semihosting.cmdline;
1395 }
1396
1397 static int add_semihosting_arg(void *opaque,
1398 const char *name, const char *val,
1399 Error **errp)
1400 {
1401 SemihostingConfig *s = opaque;
1402 if (strcmp(name, "arg") == 0) {
1403 s->argc++;
1404 /* one extra element as g_strjoinv() expects NULL-terminated array */
1405 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1406 s->argv[s->argc - 1] = val;
1407 s->argv[s->argc] = NULL;
1408 }
1409 return 0;
1410 }
1411
1412 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1413 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1414 {
1415 char *cmd_token;
1416
1417 /* argv[0] */
1418 add_semihosting_arg(&semihosting, "arg", file, NULL);
1419
1420 /* split -append and initialize argv[1..n] */
1421 cmd_token = strtok(g_strdup(cmd), " ");
1422 while (cmd_token) {
1423 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1424 cmd_token = strtok(NULL, " ");
1425 }
1426 }
1427
1428 /* Now we still need this for compatibility with XEN. */
1429 bool has_igd_gfx_passthru;
1430 static void igd_gfx_passthru(void)
1431 {
1432 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1433 }
1434
1435 /***********************************************************/
1436 /* USB devices */
1437
1438 static int usb_device_add(const char *devname)
1439 {
1440 USBDevice *dev = NULL;
1441
1442 if (!machine_usb(current_machine)) {
1443 return -1;
1444 }
1445
1446 dev = usbdevice_create(devname);
1447 if (!dev)
1448 return -1;
1449
1450 return 0;
1451 }
1452
1453 static int usb_parse(const char *cmdline)
1454 {
1455 int r;
1456 r = usb_device_add(cmdline);
1457 if (r < 0) {
1458 error_report("could not add USB device '%s'", cmdline);
1459 }
1460 return r;
1461 }
1462
1463 /***********************************************************/
1464 /* machine registration */
1465
1466 MachineState *current_machine;
1467
1468 static MachineClass *find_machine(const char *name, GSList *machines)
1469 {
1470 GSList *el;
1471
1472 for (el = machines; el; el = el->next) {
1473 MachineClass *mc = el->data;
1474
1475 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1476 return mc;
1477 }
1478 }
1479
1480 return NULL;
1481 }
1482
1483 static MachineClass *find_default_machine(GSList *machines)
1484 {
1485 GSList *el;
1486
1487 for (el = machines; el; el = el->next) {
1488 MachineClass *mc = el->data;
1489
1490 if (mc->is_default) {
1491 return mc;
1492 }
1493 }
1494
1495 return NULL;
1496 }
1497
1498 MachineInfoList *qmp_query_machines(Error **errp)
1499 {
1500 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1501 MachineInfoList *mach_list = NULL;
1502
1503 for (el = machines; el; el = el->next) {
1504 MachineClass *mc = el->data;
1505 MachineInfoList *entry;
1506 MachineInfo *info;
1507
1508 info = g_malloc0(sizeof(*info));
1509 if (mc->is_default) {
1510 info->has_is_default = true;
1511 info->is_default = true;
1512 }
1513
1514 if (mc->alias) {
1515 info->has_alias = true;
1516 info->alias = g_strdup(mc->alias);
1517 }
1518
1519 info->name = g_strdup(mc->name);
1520 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1521 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1522
1523 entry = g_malloc0(sizeof(*entry));
1524 entry->value = info;
1525 entry->next = mach_list;
1526 mach_list = entry;
1527 }
1528
1529 g_slist_free(machines);
1530 return mach_list;
1531 }
1532
1533 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1534 {
1535 ObjectProperty *prop;
1536 ObjectPropertyIterator iter;
1537
1538 if (!qemu_opt_has_help_opt(opts)) {
1539 return 0;
1540 }
1541
1542 object_property_iter_init(&iter, OBJECT(machine));
1543 while ((prop = object_property_iter_next(&iter))) {
1544 if (!prop->set) {
1545 continue;
1546 }
1547
1548 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1549 prop->name, prop->type);
1550 if (prop->description) {
1551 printf(" (%s)\n", prop->description);
1552 } else {
1553 printf("\n");
1554 }
1555 }
1556
1557 return 1;
1558 }
1559
1560 struct vm_change_state_entry {
1561 VMChangeStateHandler *cb;
1562 void *opaque;
1563 QLIST_ENTRY (vm_change_state_entry) entries;
1564 };
1565
1566 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1567
1568 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1569 void *opaque)
1570 {
1571 VMChangeStateEntry *e;
1572
1573 e = g_malloc0(sizeof (*e));
1574
1575 e->cb = cb;
1576 e->opaque = opaque;
1577 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1578 return e;
1579 }
1580
1581 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1582 {
1583 QLIST_REMOVE (e, entries);
1584 g_free (e);
1585 }
1586
1587 void vm_state_notify(int running, RunState state)
1588 {
1589 VMChangeStateEntry *e, *next;
1590
1591 trace_vm_state_notify(running, state, RunState_str(state));
1592
1593 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1594 e->cb(e->opaque, running, state);
1595 }
1596 }
1597
1598 static ShutdownCause reset_requested;
1599 static ShutdownCause shutdown_requested;
1600 static int shutdown_signal;
1601 static pid_t shutdown_pid;
1602 static int powerdown_requested;
1603 static int debug_requested;
1604 static int suspend_requested;
1605 static bool preconfig_exit_requested = true;
1606 static WakeupReason wakeup_reason;
1607 static NotifierList powerdown_notifiers =
1608 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1609 static NotifierList suspend_notifiers =
1610 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1611 static NotifierList wakeup_notifiers =
1612 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1613 static NotifierList shutdown_notifiers =
1614 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1615 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1616
1617 ShutdownCause qemu_shutdown_requested_get(void)
1618 {
1619 return shutdown_requested;
1620 }
1621
1622 ShutdownCause qemu_reset_requested_get(void)
1623 {
1624 return reset_requested;
1625 }
1626
1627 static int qemu_shutdown_requested(void)
1628 {
1629 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1630 }
1631
1632 static void qemu_kill_report(void)
1633 {
1634 if (!qtest_driver() && shutdown_signal) {
1635 if (shutdown_pid == 0) {
1636 /* This happens for eg ^C at the terminal, so it's worth
1637 * avoiding printing an odd message in that case.
1638 */
1639 error_report("terminating on signal %d", shutdown_signal);
1640 } else {
1641 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1642
1643 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1644 shutdown_signal, shutdown_pid,
1645 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1646 g_free(shutdown_cmd);
1647 }
1648 shutdown_signal = 0;
1649 }
1650 }
1651
1652 static ShutdownCause qemu_reset_requested(void)
1653 {
1654 ShutdownCause r = reset_requested;
1655
1656 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1657 reset_requested = SHUTDOWN_CAUSE_NONE;
1658 return r;
1659 }
1660 return SHUTDOWN_CAUSE_NONE;
1661 }
1662
1663 static int qemu_suspend_requested(void)
1664 {
1665 int r = suspend_requested;
1666 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1667 suspend_requested = 0;
1668 return r;
1669 }
1670 return false;
1671 }
1672
1673 static WakeupReason qemu_wakeup_requested(void)
1674 {
1675 return wakeup_reason;
1676 }
1677
1678 static int qemu_powerdown_requested(void)
1679 {
1680 int r = powerdown_requested;
1681 powerdown_requested = 0;
1682 return r;
1683 }
1684
1685 static int qemu_debug_requested(void)
1686 {
1687 int r = debug_requested;
1688 debug_requested = 0;
1689 return r;
1690 }
1691
1692 void qemu_exit_preconfig_request(void)
1693 {
1694 preconfig_exit_requested = true;
1695 }
1696
1697 /*
1698 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1699 */
1700 void qemu_system_reset(ShutdownCause reason)
1701 {
1702 MachineClass *mc;
1703
1704 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1705
1706 cpu_synchronize_all_states();
1707
1708 if (mc && mc->reset) {
1709 mc->reset();
1710 } else {
1711 qemu_devices_reset();
1712 }
1713 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1714 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1715 }
1716 cpu_synchronize_all_post_reset();
1717 }
1718
1719 void qemu_system_guest_panicked(GuestPanicInformation *info)
1720 {
1721 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1722
1723 if (current_cpu) {
1724 current_cpu->crash_occurred = true;
1725 }
1726 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1727 !!info, info);
1728 vm_stop(RUN_STATE_GUEST_PANICKED);
1729 if (!no_shutdown) {
1730 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1731 !!info, info);
1732 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1733 }
1734
1735 if (info) {
1736 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1737 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1738 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1739 info->u.hyper_v.arg1,
1740 info->u.hyper_v.arg2,
1741 info->u.hyper_v.arg3,
1742 info->u.hyper_v.arg4,
1743 info->u.hyper_v.arg5);
1744 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1745 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1746 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1747 info->u.s390.core,
1748 S390CrashReason_str(info->u.s390.reason),
1749 info->u.s390.psw_mask,
1750 info->u.s390.psw_addr);
1751 }
1752 qapi_free_GuestPanicInformation(info);
1753 }
1754 }
1755
1756 void qemu_system_reset_request(ShutdownCause reason)
1757 {
1758 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1759 shutdown_requested = reason;
1760 } else {
1761 reset_requested = reason;
1762 }
1763 cpu_stop_current();
1764 qemu_notify_event();
1765 }
1766
1767 static void qemu_system_suspend(void)
1768 {
1769 pause_all_vcpus();
1770 notifier_list_notify(&suspend_notifiers, NULL);
1771 runstate_set(RUN_STATE_SUSPENDED);
1772 qapi_event_send_suspend();
1773 }
1774
1775 void qemu_system_suspend_request(void)
1776 {
1777 if (runstate_check(RUN_STATE_SUSPENDED)) {
1778 return;
1779 }
1780 suspend_requested = 1;
1781 cpu_stop_current();
1782 qemu_notify_event();
1783 }
1784
1785 void qemu_register_suspend_notifier(Notifier *notifier)
1786 {
1787 notifier_list_add(&suspend_notifiers, notifier);
1788 }
1789
1790 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1791 {
1792 trace_system_wakeup_request(reason);
1793
1794 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1795 error_setg(errp,
1796 "Unable to wake up: guest is not in suspended state");
1797 return;
1798 }
1799 if (!(wakeup_reason_mask & (1 << reason))) {
1800 return;
1801 }
1802 runstate_set(RUN_STATE_RUNNING);
1803 wakeup_reason = reason;
1804 qemu_notify_event();
1805 }
1806
1807 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1808 {
1809 if (enabled) {
1810 wakeup_reason_mask |= (1 << reason);
1811 } else {
1812 wakeup_reason_mask &= ~(1 << reason);
1813 }
1814 }
1815
1816 void qemu_register_wakeup_notifier(Notifier *notifier)
1817 {
1818 notifier_list_add(&wakeup_notifiers, notifier);
1819 }
1820
1821 void qemu_register_wakeup_support(void)
1822 {
1823 wakeup_suspend_enabled = true;
1824 }
1825
1826 bool qemu_wakeup_suspend_enabled(void)
1827 {
1828 return wakeup_suspend_enabled;
1829 }
1830
1831 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1832 {
1833 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1834 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1835
1836 return params;
1837 }
1838
1839 void qemu_system_killed(int signal, pid_t pid)
1840 {
1841 shutdown_signal = signal;
1842 shutdown_pid = pid;
1843 no_shutdown = 0;
1844
1845 /* Cannot call qemu_system_shutdown_request directly because
1846 * we are in a signal handler.
1847 */
1848 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1849 qemu_notify_event();
1850 }
1851
1852 void qemu_system_shutdown_request(ShutdownCause reason)
1853 {
1854 trace_qemu_system_shutdown_request(reason);
1855 replay_shutdown_request(reason);
1856 shutdown_requested = reason;
1857 qemu_notify_event();
1858 }
1859
1860 static void qemu_system_powerdown(void)
1861 {
1862 qapi_event_send_powerdown();
1863 notifier_list_notify(&powerdown_notifiers, NULL);
1864 }
1865
1866 static void qemu_system_shutdown(ShutdownCause cause)
1867 {
1868 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1869 notifier_list_notify(&shutdown_notifiers, &cause);
1870 }
1871
1872 void qemu_system_powerdown_request(void)
1873 {
1874 trace_qemu_system_powerdown_request();
1875 powerdown_requested = 1;
1876 qemu_notify_event();
1877 }
1878
1879 void qemu_register_powerdown_notifier(Notifier *notifier)
1880 {
1881 notifier_list_add(&powerdown_notifiers, notifier);
1882 }
1883
1884 void qemu_register_shutdown_notifier(Notifier *notifier)
1885 {
1886 notifier_list_add(&shutdown_notifiers, notifier);
1887 }
1888
1889 void qemu_system_debug_request(void)
1890 {
1891 debug_requested = 1;
1892 qemu_notify_event();
1893 }
1894
1895 static bool main_loop_should_exit(void)
1896 {
1897 RunState r;
1898 ShutdownCause request;
1899
1900 if (preconfig_exit_requested) {
1901 if (runstate_check(RUN_STATE_PRECONFIG)) {
1902 runstate_set(RUN_STATE_PRELAUNCH);
1903 }
1904 preconfig_exit_requested = false;
1905 return true;
1906 }
1907 if (qemu_debug_requested()) {
1908 vm_stop(RUN_STATE_DEBUG);
1909 }
1910 if (qemu_suspend_requested()) {
1911 qemu_system_suspend();
1912 }
1913 request = qemu_shutdown_requested();
1914 if (request) {
1915 qemu_kill_report();
1916 qemu_system_shutdown(request);
1917 if (no_shutdown) {
1918 vm_stop(RUN_STATE_SHUTDOWN);
1919 } else {
1920 return true;
1921 }
1922 }
1923 request = qemu_reset_requested();
1924 if (request) {
1925 pause_all_vcpus();
1926 qemu_system_reset(request);
1927 resume_all_vcpus();
1928 if (!runstate_check(RUN_STATE_RUNNING) &&
1929 !runstate_check(RUN_STATE_INMIGRATE)) {
1930 runstate_set(RUN_STATE_PRELAUNCH);
1931 }
1932 }
1933 if (qemu_wakeup_requested()) {
1934 pause_all_vcpus();
1935 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1936 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1937 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1938 resume_all_vcpus();
1939 qapi_event_send_wakeup();
1940 }
1941 if (qemu_powerdown_requested()) {
1942 qemu_system_powerdown();
1943 }
1944 if (qemu_vmstop_requested(&r)) {
1945 vm_stop(r);
1946 }
1947 return false;
1948 }
1949
1950 static void main_loop(void)
1951 {
1952 #ifdef CONFIG_PROFILER
1953 int64_t ti;
1954 #endif
1955 while (!main_loop_should_exit()) {
1956 #ifdef CONFIG_PROFILER
1957 ti = profile_getclock();
1958 #endif
1959 main_loop_wait(false);
1960 #ifdef CONFIG_PROFILER
1961 dev_time += profile_getclock() - ti;
1962 #endif
1963 }
1964 }
1965
1966 static void version(void)
1967 {
1968 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1969 QEMU_COPYRIGHT "\n");
1970 }
1971
1972 static void help(int exitcode)
1973 {
1974 version();
1975 printf("usage: %s [options] [disk_image]\n\n"
1976 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1977 error_get_progname());
1978
1979 #define QEMU_OPTIONS_GENERATE_HELP
1980 #include "qemu-options-wrapper.h"
1981
1982 printf("\nDuring emulation, the following keys are useful:\n"
1983 "ctrl-alt-f toggle full screen\n"
1984 "ctrl-alt-n switch to virtual console 'n'\n"
1985 "ctrl-alt toggle mouse and keyboard grab\n"
1986 "\n"
1987 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1988 "\n"
1989 QEMU_HELP_BOTTOM "\n");
1990
1991 exit(exitcode);
1992 }
1993
1994 #define HAS_ARG 0x0001
1995
1996 typedef struct QEMUOption {
1997 const char *name;
1998 int flags;
1999 int index;
2000 uint32_t arch_mask;
2001 } QEMUOption;
2002
2003 static const QEMUOption qemu_options[] = {
2004 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2005 #define QEMU_OPTIONS_GENERATE_OPTIONS
2006 #include "qemu-options-wrapper.h"
2007 { NULL },
2008 };
2009
2010 typedef struct VGAInterfaceInfo {
2011 const char *opt_name; /* option name */
2012 const char *name; /* human-readable name */
2013 /* Class names indicating that support is available.
2014 * If no class is specified, the interface is always available */
2015 const char *class_names[2];
2016 } VGAInterfaceInfo;
2017
2018 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2019 [VGA_NONE] = {
2020 .opt_name = "none",
2021 .name = "no graphic card",
2022 },
2023 [VGA_STD] = {
2024 .opt_name = "std",
2025 .name = "standard VGA",
2026 .class_names = { "VGA", "isa-vga" },
2027 },
2028 [VGA_CIRRUS] = {
2029 .opt_name = "cirrus",
2030 .name = "Cirrus VGA",
2031 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2032 },
2033 [VGA_VMWARE] = {
2034 .opt_name = "vmware",
2035 .name = "VMWare SVGA",
2036 .class_names = { "vmware-svga" },
2037 },
2038 [VGA_VIRTIO] = {
2039 .opt_name = "virtio",
2040 .name = "Virtio VGA",
2041 .class_names = { "virtio-vga" },
2042 },
2043 [VGA_QXL] = {
2044 .opt_name = "qxl",
2045 .name = "QXL VGA",
2046 .class_names = { "qxl-vga" },
2047 },
2048 [VGA_TCX] = {
2049 .opt_name = "tcx",
2050 .name = "TCX framebuffer",
2051 .class_names = { "SUNW,tcx" },
2052 },
2053 [VGA_CG3] = {
2054 .opt_name = "cg3",
2055 .name = "CG3 framebuffer",
2056 .class_names = { "cgthree" },
2057 },
2058 [VGA_XENFB] = {
2059 .opt_name = "xenfb",
2060 .name = "Xen paravirtualized framebuffer",
2061 },
2062 };
2063
2064 static bool vga_interface_available(VGAInterfaceType t)
2065 {
2066 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2067
2068 assert(t < VGA_TYPE_MAX);
2069 return !ti->class_names[0] ||
2070 object_class_by_name(ti->class_names[0]) ||
2071 object_class_by_name(ti->class_names[1]);
2072 }
2073
2074 static const char *
2075 get_default_vga_model(const MachineClass *machine_class)
2076 {
2077 if (machine_class->default_display) {
2078 return machine_class->default_display;
2079 } else if (vga_interface_available(VGA_CIRRUS)) {
2080 return "cirrus";
2081 } else if (vga_interface_available(VGA_STD)) {
2082 return "std";
2083 }
2084
2085 return NULL;
2086 }
2087
2088 static void select_vgahw(const MachineClass *machine_class, const char *p)
2089 {
2090 const char *opts;
2091 int t;
2092
2093 if (g_str_equal(p, "help")) {
2094 const char *def = get_default_vga_model(machine_class);
2095
2096 for (t = 0; t < VGA_TYPE_MAX; t++) {
2097 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2098
2099 if (vga_interface_available(t) && ti->opt_name) {
2100 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
2101 g_str_equal(ti->opt_name, def) ? " (default)" : "");
2102 }
2103 }
2104 exit(0);
2105 }
2106
2107 assert(vga_interface_type == VGA_NONE);
2108 for (t = 0; t < VGA_TYPE_MAX; t++) {
2109 const VGAInterfaceInfo *ti = &vga_interfaces[t];
2110 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2111 if (!vga_interface_available(t)) {
2112 error_report("%s not available", ti->name);
2113 exit(1);
2114 }
2115 vga_interface_type = t;
2116 break;
2117 }
2118 }
2119 if (t == VGA_TYPE_MAX) {
2120 invalid_vga:
2121 error_report("unknown vga type: %s", p);
2122 exit(1);
2123 }
2124 while (*opts) {
2125 const char *nextopt;
2126
2127 if (strstart(opts, ",retrace=", &nextopt)) {
2128 opts = nextopt;
2129 if (strstart(opts, "dumb", &nextopt))
2130 vga_retrace_method = VGA_RETRACE_DUMB;
2131 else if (strstart(opts, "precise", &nextopt))
2132 vga_retrace_method = VGA_RETRACE_PRECISE;
2133 else goto invalid_vga;
2134 } else goto invalid_vga;
2135 opts = nextopt;
2136 }
2137 }
2138
2139 static void parse_display_qapi(const char *optarg)
2140 {
2141 DisplayOptions *opts;
2142 Visitor *v;
2143
2144 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2145
2146 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2147 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2148
2149 qapi_free_DisplayOptions(opts);
2150 visit_free(v);
2151 }
2152
2153 DisplayOptions *qmp_query_display_options(Error **errp)
2154 {
2155 return QAPI_CLONE(DisplayOptions, &dpy);
2156 }
2157
2158 static void parse_display(const char *p)
2159 {
2160 const char *opts;
2161
2162 if (strstart(p, "sdl", &opts)) {
2163 /*
2164 * sdl DisplayType needs hand-crafted parser instead of
2165 * parse_display_qapi() due to some options not in
2166 * DisplayOptions, specifically:
2167 * - frame
2168 * Already deprecated.
2169 * - ctrl_grab + alt_grab
2170 * Not clear yet what happens to them long-term. Should
2171 * replaced by something better or deprecated and dropped.
2172 */
2173 dpy.type = DISPLAY_TYPE_SDL;
2174 while (*opts) {
2175 const char *nextopt;
2176
2177 if (strstart(opts, ",alt_grab=", &nextopt)) {
2178 opts = nextopt;
2179 if (strstart(opts, "on", &nextopt)) {
2180 alt_grab = 1;
2181 } else if (strstart(opts, "off", &nextopt)) {
2182 alt_grab = 0;
2183 } else {
2184 goto invalid_sdl_args;
2185 }
2186 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2187 opts = nextopt;
2188 if (strstart(opts, "on", &nextopt)) {
2189 ctrl_grab = 1;
2190 } else if (strstart(opts, "off", &nextopt)) {
2191 ctrl_grab = 0;
2192 } else {
2193 goto invalid_sdl_args;
2194 }
2195 } else if (strstart(opts, ",window_close=", &nextopt)) {
2196 opts = nextopt;
2197 dpy.has_window_close = true;
2198 if (strstart(opts, "on", &nextopt)) {
2199 dpy.window_close = true;
2200 } else if (strstart(opts, "off", &nextopt)) {
2201 dpy.window_close = false;
2202 } else {
2203 goto invalid_sdl_args;
2204 }
2205 } else if (strstart(opts, ",gl=", &nextopt)) {
2206 opts = nextopt;
2207 dpy.has_gl = true;
2208 if (strstart(opts, "on", &nextopt)) {
2209 dpy.gl = DISPLAYGL_MODE_ON;
2210 } else if (strstart(opts, "core", &nextopt)) {
2211 dpy.gl = DISPLAYGL_MODE_CORE;
2212 } else if (strstart(opts, "es", &nextopt)) {
2213 dpy.gl = DISPLAYGL_MODE_ES;
2214 } else if (strstart(opts, "off", &nextopt)) {
2215 dpy.gl = DISPLAYGL_MODE_OFF;
2216 } else {
2217 goto invalid_sdl_args;
2218 }
2219 } else {
2220 invalid_sdl_args:
2221 error_report("invalid SDL option string");
2222 exit(1);
2223 }
2224 opts = nextopt;
2225 }
2226 } else if (strstart(p, "vnc", &opts)) {
2227 /*
2228 * vnc isn't a (local) DisplayType but a protocol for remote
2229 * display access.
2230 */
2231 if (*opts == '=') {
2232 vnc_parse(opts + 1, &error_fatal);
2233 } else {
2234 error_report("VNC requires a display argument vnc=<display>");
2235 exit(1);
2236 }
2237 } else {
2238 parse_display_qapi(p);
2239 }
2240 }
2241
2242 char *qemu_find_file(int type, const char *name)
2243 {
2244 int i;
2245 const char *subdir;
2246 char *buf;
2247
2248 /* Try the name as a straight path first */
2249 if (access(name, R_OK) == 0) {
2250 trace_load_file(name, name);
2251 return g_strdup(name);
2252 }
2253
2254 switch (type) {
2255 case QEMU_FILE_TYPE_BIOS:
2256 subdir = "";
2257 break;
2258 case QEMU_FILE_TYPE_KEYMAP:
2259 subdir = "keymaps/";
2260 break;
2261 default:
2262 abort();
2263 }
2264
2265 for (i = 0; i < data_dir_idx; i++) {
2266 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2267 if (access(buf, R_OK) == 0) {
2268 trace_load_file(name, buf);
2269 return buf;
2270 }
2271 g_free(buf);
2272 }
2273 return NULL;
2274 }
2275
2276 static void qemu_add_data_dir(const char *path)
2277 {
2278 int i;
2279
2280 if (path == NULL) {
2281 return;
2282 }
2283 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2284 return;
2285 }
2286 for (i = 0; i < data_dir_idx; i++) {
2287 if (strcmp(data_dir[i], path) == 0) {
2288 return; /* duplicate */
2289 }
2290 }
2291 data_dir[data_dir_idx++] = g_strdup(path);
2292 }
2293
2294 static inline bool nonempty_str(const char *str)
2295 {
2296 return str && *str;
2297 }
2298
2299 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2300 {
2301 gchar *buf;
2302 size_t size;
2303 const char *name, *file, *str;
2304 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2305
2306 if (fw_cfg == NULL) {
2307 error_setg(errp, "fw_cfg device not available");
2308 return -1;
2309 }
2310 name = qemu_opt_get(opts, "name");
2311 file = qemu_opt_get(opts, "file");
2312 str = qemu_opt_get(opts, "string");
2313
2314 /* we need name and either a file or the content string */
2315 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2316 error_setg(errp, "invalid argument(s)");
2317 return -1;
2318 }
2319 if (nonempty_str(file) && nonempty_str(str)) {
2320 error_setg(errp, "file and string are mutually exclusive");
2321 return -1;
2322 }
2323 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2324 error_setg(errp, "name too long (max. %d char)",
2325 FW_CFG_MAX_FILE_PATH - 1);
2326 return -1;
2327 }
2328 if (strncmp(name, "opt/", 4) != 0) {
2329 warn_report("externally provided fw_cfg item names "
2330 "should be prefixed with \"opt/\"");
2331 }
2332 if (nonempty_str(str)) {
2333 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2334 buf = g_memdup(str, size);
2335 } else {
2336 GError *err = NULL;
2337 if (!g_file_get_contents(file, &buf, &size, &err)) {
2338 error_setg(errp, "can't load %s: %s", file, err->message);
2339 g_error_free(err);
2340 return -1;
2341 }
2342 }
2343 /* For legacy, keep user files in a specific global order. */
2344 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2345 fw_cfg_add_file(fw_cfg, name, buf, size);
2346 fw_cfg_reset_order_override(fw_cfg);
2347 return 0;
2348 }
2349
2350 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2351 {
2352 return qdev_device_help(opts);
2353 }
2354
2355 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2356 {
2357 DeviceState *dev;
2358
2359 dev = qdev_device_add(opts, errp);
2360 if (!dev) {
2361 return -1;
2362 }
2363 object_unref(OBJECT(dev));
2364 return 0;
2365 }
2366
2367 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2368 {
2369 Error *local_err = NULL;
2370
2371 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2372 if (local_err) {
2373 error_propagate(errp, local_err);
2374 return -1;
2375 }
2376 exit(0);
2377 }
2378 return 0;
2379 }
2380
2381 #ifdef CONFIG_VIRTFS
2382 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2383 {
2384 return qemu_fsdev_add(opts, errp);
2385 }
2386 #endif
2387
2388 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2389 {
2390 Chardev *chr;
2391 const char *chardev;
2392 const char *mode;
2393 int flags;
2394
2395 mode = qemu_opt_get(opts, "mode");
2396 if (mode == NULL) {
2397 mode = "readline";
2398 }
2399 if (strcmp(mode, "readline") == 0) {
2400 flags = MONITOR_USE_READLINE;
2401 } else if (strcmp(mode, "control") == 0) {
2402 flags = MONITOR_USE_CONTROL;
2403 } else {
2404 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2405 return -1;
2406 }
2407
2408 if (qemu_opt_get_bool(opts, "pretty", 0))
2409 flags |= MONITOR_USE_PRETTY;
2410
2411 chardev = qemu_opt_get(opts, "chardev");
2412 if (!chardev) {
2413 error_report("chardev is required");
2414 exit(1);
2415 }
2416 chr = qemu_chr_find(chardev);
2417 if (chr == NULL) {
2418 error_setg(errp, "chardev \"%s\" not found", chardev);
2419 return -1;
2420 }
2421
2422 monitor_init(chr, flags);
2423 return 0;
2424 }
2425
2426 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2427 {
2428 static int monitor_device_index = 0;
2429 QemuOpts *opts;
2430 const char *p;
2431 char label[32];
2432
2433 if (strstart(optarg, "chardev:", &p)) {
2434 snprintf(label, sizeof(label), "%s", p);
2435 } else {
2436 snprintf(label, sizeof(label), "compat_monitor%d",
2437 monitor_device_index);
2438 opts = qemu_chr_parse_compat(label, optarg, true);
2439 if (!opts) {
2440 error_report("parse error: %s", optarg);
2441 exit(1);
2442 }
2443 }
2444
2445 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2446 qemu_opt_set(opts, "mode", mode, &error_abort);
2447 qemu_opt_set(opts, "chardev", label, &error_abort);
2448 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2449 monitor_device_index++;
2450 }
2451
2452 struct device_config {
2453 enum {
2454 DEV_USB, /* -usbdevice */
2455 DEV_BT, /* -bt */
2456 DEV_SERIAL, /* -serial */
2457 DEV_PARALLEL, /* -parallel */
2458 DEV_DEBUGCON, /* -debugcon */
2459 DEV_GDB, /* -gdb, -s */
2460 DEV_SCLP, /* s390 sclp */
2461 } type;
2462 const char *cmdline;
2463 Location loc;
2464 QTAILQ_ENTRY(device_config) next;
2465 };
2466
2467 static QTAILQ_HEAD(, device_config) device_configs =
2468 QTAILQ_HEAD_INITIALIZER(device_configs);
2469
2470 static void add_device_config(int type, const char *cmdline)
2471 {
2472 struct device_config *conf;
2473
2474 conf = g_malloc0(sizeof(*conf));
2475 conf->type = type;
2476 conf->cmdline = cmdline;
2477 loc_save(&conf->loc);
2478 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2479 }
2480
2481 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2482 {
2483 struct device_config *conf;
2484 int rc;
2485
2486 QTAILQ_FOREACH(conf, &device_configs, next) {
2487 if (conf->type != type)
2488 continue;
2489 loc_push_restore(&conf->loc);
2490 rc = func(conf->cmdline);
2491 loc_pop(&conf->loc);
2492 if (rc) {
2493 return rc;
2494 }
2495 }
2496 return 0;
2497 }
2498
2499 static int serial_parse(const char *devname)
2500 {
2501 int index = num_serial_hds;
2502 char label[32];
2503
2504 if (strcmp(devname, "none") == 0)
2505 return 0;
2506 snprintf(label, sizeof(label), "serial%d", index);
2507 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2508
2509 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2510 if (!serial_hds[index]) {
2511 error_report("could not connect serial device"
2512 " to character backend '%s'", devname);
2513 return -1;
2514 }
2515 num_serial_hds++;
2516 return 0;
2517 }
2518
2519 Chardev *serial_hd(int i)
2520 {
2521 assert(i >= 0);
2522 if (i < num_serial_hds) {
2523 return serial_hds[i];
2524 }
2525 return NULL;
2526 }
2527
2528 int serial_max_hds(void)
2529 {
2530 return num_serial_hds;
2531 }
2532
2533 static int parallel_parse(const char *devname)
2534 {
2535 static int index = 0;
2536 char label[32];
2537
2538 if (strcmp(devname, "none") == 0)
2539 return 0;
2540 if (index == MAX_PARALLEL_PORTS) {
2541 error_report("too many parallel ports");
2542 exit(1);
2543 }
2544 snprintf(label, sizeof(label), "parallel%d", index);
2545 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2546 if (!parallel_hds[index]) {
2547 error_report("could not connect parallel device"
2548 " to character backend '%s'", devname);
2549 return -1;
2550 }
2551 index++;
2552 return 0;
2553 }
2554
2555 static int debugcon_parse(const char *devname)
2556 {
2557 QemuOpts *opts;
2558
2559 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2560 error_report("invalid character backend '%s'", devname);
2561 exit(1);
2562 }
2563 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2564 if (!opts) {
2565 error_report("already have a debugcon device");
2566 exit(1);
2567 }
2568 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2569 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2570 return 0;
2571 }
2572
2573 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2574 {
2575 const MachineClass *mc1 = a, *mc2 = b;
2576 int res;
2577
2578 if (mc1->family == NULL) {
2579 if (mc2->family == NULL) {
2580 /* Compare standalone machine types against each other; they sort
2581 * in increasing order.
2582 */
2583 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2584 object_class_get_name(OBJECT_CLASS(mc2)));
2585 }
2586
2587 /* Standalone machine types sort after families. */
2588 return 1;
2589 }
2590
2591 if (mc2->family == NULL) {
2592 /* Families sort before standalone machine types. */
2593 return -1;
2594 }
2595
2596 /* Families sort between each other alphabetically increasingly. */
2597 res = strcmp(mc1->family, mc2->family);
2598 if (res != 0) {
2599 return res;
2600 }
2601
2602 /* Within the same family, machine types sort in decreasing order. */
2603 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2604 object_class_get_name(OBJECT_CLASS(mc1)));
2605 }
2606
2607 static MachineClass *machine_parse(const char *name, GSList *machines)
2608 {
2609 MachineClass *mc;
2610 GSList *el;
2611
2612 if (is_help_option(name)) {
2613 printf("Supported machines are:\n");
2614 machines = g_slist_sort(machines, machine_class_cmp);
2615 for (el = machines; el; el = el->next) {
2616 MachineClass *mc = el->data;
2617 if (mc->alias) {
2618 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2619 }
2620 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2621 mc->is_default ? " (default)" : "",
2622 mc->deprecation_reason ? " (deprecated)" : "");
2623 }
2624 exit(0);
2625 }
2626
2627 mc = find_machine(name, machines);
2628 if (!mc) {
2629 error_report("unsupported machine type");
2630 error_printf("Use -machine help to list supported machines\n");
2631 exit(1);
2632 }
2633 return mc;
2634 }
2635
2636 void qemu_add_exit_notifier(Notifier *notify)
2637 {
2638 notifier_list_add(&exit_notifiers, notify);
2639 }
2640
2641 void qemu_remove_exit_notifier(Notifier *notify)
2642 {
2643 notifier_remove(notify);
2644 }
2645
2646 static void qemu_run_exit_notifiers(void)
2647 {
2648 notifier_list_notify(&exit_notifiers, NULL);
2649 }
2650
2651 static const char *pid_file;
2652 static Notifier qemu_unlink_pidfile_notifier;
2653
2654 static void qemu_unlink_pidfile(Notifier *n, void *data)
2655 {
2656 if (pid_file) {
2657 unlink(pid_file);
2658 }
2659 }
2660
2661 bool machine_init_done;
2662
2663 void qemu_add_machine_init_done_notifier(Notifier *notify)
2664 {
2665 notifier_list_add(&machine_init_done_notifiers, notify);
2666 if (machine_init_done) {
2667 notify->notify(notify, NULL);
2668 }
2669 }
2670
2671 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2672 {
2673 notifier_remove(notify);
2674 }
2675
2676 static void qemu_run_machine_init_done_notifiers(void)
2677 {
2678 machine_init_done = true;
2679 notifier_list_notify(&machine_init_done_notifiers, NULL);
2680 }
2681
2682 static const QEMUOption *lookup_opt(int argc, char **argv,
2683 const char **poptarg, int *poptind)
2684 {
2685 const QEMUOption *popt;
2686 int optind = *poptind;
2687 char *r = argv[optind];
2688 const char *optarg;
2689
2690 loc_set_cmdline(argv, optind, 1);
2691 optind++;
2692 /* Treat --foo the same as -foo. */
2693 if (r[1] == '-')
2694 r++;
2695 popt = qemu_options;
2696 for(;;) {
2697 if (!popt->name) {
2698 error_report("invalid option");
2699 exit(1);
2700 }
2701 if (!strcmp(popt->name, r + 1))
2702 break;
2703 popt++;
2704 }
2705 if (popt->flags & HAS_ARG) {
2706 if (optind >= argc) {
2707 error_report("requires an argument");
2708 exit(1);
2709 }
2710 optarg = argv[optind++];
2711 loc_set_cmdline(argv, optind - 2, 2);
2712 } else {
2713 optarg = NULL;
2714 }
2715
2716 *poptarg = optarg;
2717 *poptind = optind;
2718
2719 return popt;
2720 }
2721
2722 static MachineClass *select_machine(void)
2723 {
2724 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2725 MachineClass *machine_class = find_default_machine(machines);
2726 const char *optarg;
2727 QemuOpts *opts;
2728 Location loc;
2729
2730 loc_push_none(&loc);
2731
2732 opts = qemu_get_machine_opts();
2733 qemu_opts_loc_restore(opts);
2734
2735 optarg = qemu_opt_get(opts, "type");
2736 if (optarg) {
2737 machine_class = machine_parse(optarg, machines);
2738 }
2739
2740 if (!machine_class) {
2741 error_report("No machine specified, and there is no default");
2742 error_printf("Use -machine help to list supported machines\n");
2743 exit(1);
2744 }
2745
2746 loc_pop(&loc);
2747 g_slist_free(machines);
2748 return machine_class;
2749 }
2750
2751 static int machine_set_property(void *opaque,
2752 const char *name, const char *value,
2753 Error **errp)
2754 {
2755 Object *obj = OBJECT(opaque);
2756 Error *local_err = NULL;
2757 char *p, *qom_name;
2758
2759 if (strcmp(name, "type") == 0) {
2760 return 0;
2761 }
2762
2763 qom_name = g_strdup(name);
2764 for (p = qom_name; *p; p++) {
2765 if (*p == '_') {
2766 *p = '-';
2767 }
2768 }
2769
2770 object_property_parse(obj, value, qom_name, &local_err);
2771 g_free(qom_name);
2772
2773 if (local_err) {
2774 error_propagate(errp, local_err);
2775 return -1;
2776 }
2777
2778 return 0;
2779 }
2780
2781
2782 /*
2783 * Initial object creation happens before all other
2784 * QEMU data types are created. The majority of objects
2785 * can be created at this point. The rng-egd object
2786 * cannot be created here, as it depends on the chardev
2787 * already existing.
2788 */
2789 static bool object_create_initial(const char *type, QemuOpts *opts)
2790 {
2791 ObjectClass *klass;
2792
2793 if (is_help_option(type)) {
2794 GSList *l, *list;
2795
2796 printf("List of user creatable objects:\n");
2797 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2798 for (l = list; l != NULL; l = l->next) {
2799 ObjectClass *oc = OBJECT_CLASS(l->data);
2800 printf(" %s\n", object_class_get_name(oc));
2801 }
2802 g_slist_free(list);
2803 exit(0);
2804 }
2805
2806 klass = object_class_by_name(type);
2807 if (klass && qemu_opt_has_help_opt(opts)) {
2808 ObjectPropertyIterator iter;
2809 ObjectProperty *prop;
2810 GPtrArray *array = g_ptr_array_new();
2811 int i;
2812
2813 object_class_property_iter_init(&iter, klass);
2814 while ((prop = object_property_iter_next(&iter))) {
2815 GString *str;
2816
2817 if (!prop->set) {
2818 continue;
2819 }
2820
2821 str = g_string_new(NULL);
2822 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2823 if (prop->description) {
2824 if (str->len < 24) {
2825 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2826 }
2827 g_string_append_printf(str, " - %s", prop->description);
2828 }
2829 g_ptr_array_add(array, g_string_free(str, false));
2830 }
2831 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2832 if (array->len > 0) {
2833 printf("%s options:\n", type);
2834 } else {
2835 printf("There are no options for %s.\n", type);
2836 }
2837 for (i = 0; i < array->len; i++) {
2838 printf("%s\n", (char *)array->pdata[i]);
2839 }
2840 g_ptr_array_set_free_func(array, g_free);
2841 g_ptr_array_free(array, true);
2842 exit(0);
2843 }
2844
2845 if (g_str_equal(type, "rng-egd") ||
2846 g_str_has_prefix(type, "pr-manager-")) {
2847 return false;
2848 }
2849
2850 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2851 if (g_str_equal(type, "cryptodev-vhost-user")) {
2852 return false;
2853 }
2854 #endif
2855
2856 /*
2857 * return false for concrete netfilters since
2858 * they depend on netdevs already existing
2859 */
2860 if (g_str_equal(type, "filter-buffer") ||
2861 g_str_equal(type, "filter-dump") ||
2862 g_str_equal(type, "filter-mirror") ||
2863 g_str_equal(type, "filter-redirector") ||
2864 g_str_equal(type, "colo-compare") ||
2865 g_str_equal(type, "filter-rewriter") ||
2866 g_str_equal(type, "filter-replay")) {
2867 return false;
2868 }
2869
2870 /* Memory allocation by backends needs to be done
2871 * after configure_accelerator() (due to the tcg_enabled()
2872 * checks at memory_region_init_*()).
2873 *
2874 * Also, allocation of large amounts of memory may delay
2875 * chardev initialization for too long, and trigger timeouts
2876 * on software that waits for a monitor socket to be created
2877 * (e.g. libvirt).
2878 */
2879 if (g_str_has_prefix(type, "memory-backend-")) {
2880 return false;
2881 }
2882
2883 return true;
2884 }
2885
2886
2887 /*
2888 * The remainder of object creation happens after the
2889 * creation of chardev, fsdev, net clients and device data types.
2890 */
2891 static bool object_create_delayed(const char *type, QemuOpts *opts)
2892 {
2893 return !object_create_initial(type, opts);
2894 }
2895
2896
2897 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2898 MachineClass *mc)
2899 {
2900 uint64_t sz;
2901 const char *mem_str;
2902 const ram_addr_t default_ram_size = mc->default_ram_size;
2903 QemuOpts *opts = qemu_find_opts_singleton("memory");
2904 Location loc;
2905
2906 loc_push_none(&loc);
2907 qemu_opts_loc_restore(opts);
2908
2909 sz = 0;
2910 mem_str = qemu_opt_get(opts, "size");
2911 if (mem_str) {
2912 if (!*mem_str) {
2913 error_report("missing 'size' option value");
2914 exit(EXIT_FAILURE);
2915 }
2916
2917 sz = qemu_opt_get_size(opts, "size", ram_size);
2918
2919 /* Fix up legacy suffix-less format */
2920 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2921 uint64_t overflow_check = sz;
2922
2923 sz *= MiB;
2924 if (sz / MiB != overflow_check) {
2925 error_report("too large 'size' option value");
2926 exit(EXIT_FAILURE);
2927 }
2928 }
2929 }
2930
2931 /* backward compatibility behaviour for case "-m 0" */
2932 if (sz == 0) {
2933 sz = default_ram_size;
2934 }
2935
2936 sz = QEMU_ALIGN_UP(sz, 8192);
2937 ram_size = sz;
2938 if (ram_size != sz) {
2939 error_report("ram size too large");
2940 exit(EXIT_FAILURE);
2941 }
2942
2943 /* store value for the future use */
2944 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2945 *maxram_size = ram_size;
2946
2947 if (qemu_opt_get(opts, "maxmem")) {
2948 uint64_t slots;
2949
2950 sz = qemu_opt_get_size(opts, "maxmem", 0);
2951 slots = qemu_opt_get_number(opts, "slots", 0);
2952 if (sz < ram_size) {
2953 error_report("invalid value of -m option maxmem: "
2954 "maximum memory size (0x%" PRIx64 ") must be at least "
2955 "the initial memory size (0x" RAM_ADDR_FMT ")",
2956 sz, ram_size);
2957 exit(EXIT_FAILURE);
2958 } else if (slots && sz == ram_size) {
2959 error_report("invalid value of -m option maxmem: "
2960 "memory slots were specified but maximum memory size "
2961 "(0x%" PRIx64 ") is equal to the initial memory size "
2962 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2963 exit(EXIT_FAILURE);
2964 }
2965
2966 *maxram_size = sz;
2967 *ram_slots = slots;
2968 } else if (qemu_opt_get(opts, "slots")) {
2969 error_report("invalid -m option value: missing 'maxmem' option");
2970 exit(EXIT_FAILURE);
2971 }
2972
2973 loc_pop(&loc);
2974 }
2975
2976 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2977 {
2978 GlobalProperty *g;
2979
2980 g = g_malloc0(sizeof(*g));
2981 g->driver = qemu_opt_get(opts, "driver");
2982 g->property = qemu_opt_get(opts, "property");
2983 g->value = qemu_opt_get(opts, "value");
2984 qdev_prop_register_global(g);
2985 return 0;
2986 }
2987
2988 static int qemu_read_default_config_file(void)
2989 {
2990 int ret;
2991
2992 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2993 if (ret < 0 && ret != -ENOENT) {
2994 return ret;
2995 }
2996
2997 return 0;
2998 }
2999
3000 static void user_register_global_props(void)
3001 {
3002 qemu_opts_foreach(qemu_find_opts("global"),
3003 global_init_func, NULL, NULL);
3004 }
3005
3006 int main(int argc, char **argv, char **envp)
3007 {
3008 int i;
3009 int snapshot, linux_boot;
3010 const char *initrd_filename;
3011 const char *kernel_filename, *kernel_cmdline;
3012 const char *boot_order = NULL;
3013 const char *boot_once = NULL;
3014 DisplayState *ds;
3015 QemuOpts *opts, *machine_opts;
3016 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3017 QemuOptsList *olist;
3018 int optind;
3019 const char *optarg;
3020 const char *loadvm = NULL;
3021 MachineClass *machine_class;
3022 const char *cpu_option;
3023 const char *vga_model = NULL;
3024 const char *qtest_chrdev = NULL;
3025 const char *qtest_log = NULL;
3026 const char *incoming = NULL;
3027 bool userconfig = true;
3028 bool nographic = false;
3029 int display_remote = 0;
3030 const char *log_mask = NULL;
3031 const char *log_file = NULL;
3032 char *trace_file = NULL;
3033 ram_addr_t maxram_size;
3034 uint64_t ram_slots = 0;
3035 FILE *vmstate_dump_file = NULL;
3036 Error *main_loop_err = NULL;
3037 Error *err = NULL;
3038 bool list_data_dirs = false;
3039 char *dir, **dirs;
3040 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3041
3042 error_init(argv[0]);
3043 module_call_init(MODULE_INIT_TRACE);
3044
3045 qemu_init_cpu_list();
3046 qemu_init_cpu_loop();
3047
3048 qemu_mutex_lock_iothread();
3049
3050 atexit(qemu_run_exit_notifiers);
3051 qemu_init_exec_dir(argv[0]);
3052
3053 module_call_init(MODULE_INIT_QOM);
3054
3055 qemu_add_opts(&qemu_drive_opts);
3056 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3057 qemu_add_drive_opts(&qemu_common_drive_opts);
3058 qemu_add_drive_opts(&qemu_drive_opts);
3059 qemu_add_drive_opts(&bdrv_runtime_opts);
3060 qemu_add_opts(&qemu_chardev_opts);
3061 qemu_add_opts(&qemu_device_opts);
3062 qemu_add_opts(&qemu_netdev_opts);
3063 qemu_add_opts(&qemu_nic_opts);
3064 qemu_add_opts(&qemu_net_opts);
3065 qemu_add_opts(&qemu_rtc_opts);
3066 qemu_add_opts(&qemu_global_opts);
3067 qemu_add_opts(&qemu_mon_opts);
3068 qemu_add_opts(&qemu_trace_opts);
3069 qemu_add_opts(&qemu_option_rom_opts);
3070 qemu_add_opts(&qemu_machine_opts);
3071 qemu_add_opts(&qemu_accel_opts);
3072 qemu_add_opts(&qemu_mem_opts);
3073 qemu_add_opts(&qemu_smp_opts);
3074 qemu_add_opts(&qemu_boot_opts);
3075 qemu_add_opts(&qemu_add_fd_opts);
3076 qemu_add_opts(&qemu_object_opts);
3077 qemu_add_opts(&qemu_tpmdev_opts);
3078 qemu_add_opts(&qemu_realtime_opts);
3079 qemu_add_opts(&qemu_overcommit_opts);
3080 qemu_add_opts(&qemu_msg_opts);
3081 qemu_add_opts(&qemu_name_opts);
3082 qemu_add_opts(&qemu_numa_opts);
3083 qemu_add_opts(&qemu_icount_opts);
3084 qemu_add_opts(&qemu_semihosting_config_opts);
3085 qemu_add_opts(&qemu_fw_cfg_opts);
3086 module_call_init(MODULE_INIT_OPTS);
3087
3088 runstate_init();
3089 precopy_infrastructure_init();
3090 postcopy_infrastructure_init();
3091 monitor_init_globals();
3092
3093 if (qcrypto_init(&err) < 0) {
3094 error_reportf_err(err, "cannot initialize crypto: ");
3095 exit(1);
3096 }
3097
3098 QLIST_INIT (&vm_change_state_head);
3099 os_setup_early_signal_handling();
3100
3101 cpu_option = NULL;
3102 snapshot = 0;
3103
3104 nb_nics = 0;
3105
3106 bdrv_init_with_whitelist();
3107
3108 autostart = 1;
3109
3110 /* first pass of option parsing */
3111 optind = 1;
3112 while (optind < argc) {
3113 if (argv[optind][0] != '-') {
3114 /* disk image */
3115 optind++;
3116 } else {
3117 const QEMUOption *popt;
3118
3119 popt = lookup_opt(argc, argv, &optarg, &optind);
3120 switch (popt->index) {
3121 case QEMU_OPTION_nouserconfig:
3122 userconfig = false;
3123 break;
3124 }
3125 }
3126 }
3127
3128 if (userconfig) {
3129 if (qemu_read_default_config_file() < 0) {
3130 exit(1);
3131 }
3132 }
3133
3134 /* second pass of option parsing */
3135 optind = 1;
3136 for(;;) {
3137 if (optind >= argc)
3138 break;
3139 if (argv[optind][0] != '-') {
3140 loc_set_cmdline(argv, optind, 1);
3141 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3142 } else {
3143 const QEMUOption *popt;
3144
3145 popt = lookup_opt(argc, argv, &optarg, &optind);
3146 if (!(popt->arch_mask & arch_type)) {
3147 error_report("Option not supported for this target");
3148 exit(1);
3149 }
3150 switch(popt->index) {
3151 case QEMU_OPTION_cpu:
3152 /* hw initialization will check this */
3153 cpu_option = optarg;
3154 break;
3155 case QEMU_OPTION_hda:
3156 case QEMU_OPTION_hdb:
3157 case QEMU_OPTION_hdc:
3158 case QEMU_OPTION_hdd:
3159 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3160 HD_OPTS);
3161 break;
3162 case QEMU_OPTION_blockdev:
3163 {
3164 Visitor *v;
3165 BlockdevOptionsQueueEntry *bdo;
3166
3167 v = qobject_input_visitor_new_str(optarg, "driver",
3168 &error_fatal);
3169
3170 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3171 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3172 &error_fatal);
3173 visit_free(v);
3174 loc_save(&bdo->loc);
3175 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3176 break;
3177 }
3178 case QEMU_OPTION_drive:
3179 if (drive_def(optarg) == NULL) {
3180 exit(1);
3181 }
3182 break;
3183 case QEMU_OPTION_set:
3184 if (qemu_set_option(optarg) != 0)
3185 exit(1);
3186 break;
3187 case QEMU_OPTION_global:
3188 if (qemu_global_option(optarg) != 0)
3189 exit(1);
3190 break;
3191 case QEMU_OPTION_mtdblock:
3192 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3193 break;
3194 case QEMU_OPTION_sd:
3195 drive_add(IF_SD, -1, optarg, SD_OPTS);
3196 break;
3197 case QEMU_OPTION_pflash:
3198 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3199 break;
3200 case QEMU_OPTION_snapshot:
3201 snapshot = 1;
3202 break;
3203 case QEMU_OPTION_numa:
3204 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3205 optarg, true);
3206 if (!opts) {
3207 exit(1);
3208 }
3209 break;
3210 case QEMU_OPTION_display:
3211 parse_display(optarg);
3212 break;
3213 case QEMU_OPTION_nographic:
3214 olist = qemu_find_opts("machine");
3215 qemu_opts_parse_noisily(olist, "graphics=off", false);
3216 nographic = true;
3217 dpy.type = DISPLAY_TYPE_NONE;
3218 break;
3219 case QEMU_OPTION_curses:
3220 #ifdef CONFIG_CURSES
3221 dpy.type = DISPLAY_TYPE_CURSES;
3222 #else
3223 error_report("curses or iconv support is disabled");
3224 exit(1);
3225 #endif
3226 break;
3227 case QEMU_OPTION_portrait:
3228 graphic_rotate = 90;
3229 break;
3230 case QEMU_OPTION_rotate:
3231 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3232 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3233 graphic_rotate != 180 && graphic_rotate != 270) {
3234 error_report("only 90, 180, 270 deg rotation is available");
3235 exit(1);
3236 }
3237 break;
3238 case QEMU_OPTION_kernel:
3239 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3240 &error_abort);
3241 break;
3242 case QEMU_OPTION_initrd:
3243 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3244 &error_abort);
3245 break;
3246 case QEMU_OPTION_append:
3247 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3248 &error_abort);
3249 break;
3250 case QEMU_OPTION_dtb:
3251 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3252 &error_abort);
3253 break;
3254 case QEMU_OPTION_cdrom:
3255 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3256 break;
3257 case QEMU_OPTION_boot:
3258 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3259 optarg, true);
3260 if (!opts) {
3261 exit(1);
3262 }
3263 break;
3264 case QEMU_OPTION_fda:
3265 case QEMU_OPTION_fdb:
3266 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3267 optarg, FD_OPTS);
3268 break;
3269 case QEMU_OPTION_no_fd_bootchk:
3270 fd_bootchk = 0;
3271 break;
3272 case QEMU_OPTION_netdev:
3273 default_net = 0;
3274 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3275 exit(1);
3276 }
3277 break;
3278 case QEMU_OPTION_nic:
3279 default_net = 0;
3280 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3281 exit(1);
3282 }
3283 break;
3284 case QEMU_OPTION_net:
3285 default_net = 0;
3286 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3287 exit(1);
3288 }
3289 break;
3290 #ifdef CONFIG_LIBISCSI
3291 case QEMU_OPTION_iscsi:
3292 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3293 optarg, false);
3294 if (!opts) {
3295 exit(1);
3296 }
3297 break;
3298 #endif
3299 case QEMU_OPTION_bt:
3300 warn_report("The bluetooth subsystem is deprecated and will "
3301 "be removed soon. If the bluetooth subsystem is "
3302 "still useful for you, please send a mail to "
3303 "qemu-devel@nongnu.org with your usecase.");
3304 add_device_config(DEV_BT, optarg);
3305 break;
3306 case QEMU_OPTION_audio_help:
3307 audio_legacy_help();
3308 exit (0);
3309 break;
3310 case QEMU_OPTION_audiodev:
3311 audio_parse_option(optarg);
3312 break;
3313 case QEMU_OPTION_soundhw:
3314 select_soundhw (optarg);
3315 break;
3316 case QEMU_OPTION_h:
3317 help(0);
3318 break;
3319 case QEMU_OPTION_version:
3320 version();
3321 exit(0);
3322 break;
3323 case QEMU_OPTION_m:
3324 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3325 optarg, true);
3326 if (!opts) {
3327 exit(EXIT_FAILURE);
3328 }
3329 break;
3330 #ifdef CONFIG_TPM
3331 case QEMU_OPTION_tpmdev:
3332 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3333 exit(1);
3334 }
3335 break;
3336 #endif
3337 case QEMU_OPTION_mempath:
3338 mem_path = optarg;
3339 break;
3340 case QEMU_OPTION_mem_prealloc:
3341 mem_prealloc = 1;
3342 break;
3343 case QEMU_OPTION_d:
3344 log_mask = optarg;
3345 break;
3346 case QEMU_OPTION_D:
3347 log_file = optarg;
3348 break;
3349 case QEMU_OPTION_DFILTER:
3350 qemu_set_dfilter_ranges(optarg, &error_fatal);
3351 break;
3352 case QEMU_OPTION_s:
3353 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3354 break;
3355 case QEMU_OPTION_gdb:
3356 add_device_config(DEV_GDB, optarg);
3357 break;
3358 case QEMU_OPTION_L:
3359 if (is_help_option(optarg)) {
3360 list_data_dirs = true;
3361 } else {
3362 qemu_add_data_dir(optarg);
3363 }
3364 break;
3365 case QEMU_OPTION_bios:
3366 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3367 &error_abort);
3368 break;
3369 case QEMU_OPTION_singlestep:
3370 singlestep = 1;
3371 break;
3372 case QEMU_OPTION_S:
3373 autostart = 0;
3374 break;
3375 case QEMU_OPTION_k:
3376 keyboard_layout = optarg;
3377 break;
3378 case QEMU_OPTION_vga:
3379 vga_model = optarg;
3380 default_vga = 0;
3381 break;
3382 case QEMU_OPTION_g:
3383 {
3384 const char *p;
3385 int w, h, depth;
3386 p = optarg;
3387 w = strtol(p, (char **)&p, 10);
3388 if (w <= 0) {
3389 graphic_error:
3390 error_report("invalid resolution or depth");
3391 exit(1);
3392 }
3393 if (*p != 'x')
3394 goto graphic_error;
3395 p++;
3396 h = strtol(p, (char **)&p, 10);
3397 if (h <= 0)
3398 goto graphic_error;
3399 if (*p == 'x') {
3400 p++;
3401 depth = strtol(p, (char **)&p, 10);
3402 if (depth != 8 && depth != 15 && depth != 16 &&
3403 depth != 24 && depth != 32)
3404 goto graphic_error;
3405 } else if (*p == '\0') {
3406 depth = graphic_depth;
3407 } else {
3408 goto graphic_error;
3409 }
3410
3411 graphic_width = w;
3412 graphic_height = h;
3413 graphic_depth = depth;
3414 }
3415 break;
3416 case QEMU_OPTION_echr:
3417 {
3418 char *r;
3419 term_escape_char = strtol(optarg, &r, 0);
3420 if (r == optarg)
3421 printf("Bad argument to echr\n");
3422 break;
3423 }
3424 case QEMU_OPTION_monitor:
3425 default_monitor = 0;
3426 if (strncmp(optarg, "none", 4)) {
3427 monitor_parse(optarg, "readline", false);
3428 }
3429 break;
3430 case QEMU_OPTION_qmp:
3431 monitor_parse(optarg, "control", false);
3432 default_monitor = 0;
3433 break;
3434 case QEMU_OPTION_qmp_pretty:
3435 monitor_parse(optarg, "control", true);
3436 default_monitor = 0;
3437 break;
3438 case QEMU_OPTION_mon:
3439 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3440 true);
3441 if (!opts) {
3442 exit(1);
3443 }
3444 default_monitor = 0;
3445 break;
3446 case QEMU_OPTION_chardev:
3447 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3448 optarg, true);
3449 if (!opts) {
3450 exit(1);
3451 }
3452 break;
3453 case QEMU_OPTION_fsdev:
3454 olist = qemu_find_opts("fsdev");
3455 if (!olist) {
3456 error_report("fsdev support is disabled");
3457 exit(1);
3458 }
3459 opts = qemu_opts_parse_noisily(olist, optarg, true);
3460 if (!opts) {
3461 exit(1);
3462 }
3463 break;
3464 case QEMU_OPTION_virtfs: {
3465 QemuOpts *fsdev;
3466 QemuOpts *device;
3467 const char *writeout, *sock_fd, *socket, *path, *security_model;
3468
3469 olist = qemu_find_opts("virtfs");
3470 if (!olist) {
3471 error_report("virtfs support is disabled");
3472 exit(1);
3473 }
3474 opts = qemu_opts_parse_noisily(olist, optarg, true);
3475 if (!opts) {
3476 exit(1);
3477 }
3478
3479 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3480 qemu_opt_get(opts, "mount_tag") == NULL) {
3481 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3482 exit(1);
3483 }
3484 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3485 qemu_opts_id(opts) ?:
3486 qemu_opt_get(opts, "mount_tag"),
3487 1, NULL);
3488 if (!fsdev) {
3489 error_report("duplicate or invalid fsdev id: %s",
3490 qemu_opt_get(opts, "mount_tag"));
3491 exit(1);
3492 }
3493
3494 writeout = qemu_opt_get(opts, "writeout");
3495 if (writeout) {
3496 #ifdef CONFIG_SYNC_FILE_RANGE
3497 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3498 #else
3499 error_report("writeout=immediate not supported "
3500 "on this platform");
3501 exit(1);
3502 #endif
3503 }
3504 qemu_opt_set(fsdev, "fsdriver",
3505 qemu_opt_get(opts, "fsdriver"), &error_abort);
3506 path = qemu_opt_get(opts, "path");
3507 if (path) {
3508 qemu_opt_set(fsdev, "path", path, &error_abort);
3509 }
3510 security_model = qemu_opt_get(opts, "security_model");
3511 if (security_model) {
3512 qemu_opt_set(fsdev, "security_model", security_model,
3513 &error_abort);
3514 }
3515 socket = qemu_opt_get(opts, "socket");
3516 if (socket) {
3517 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3518 }
3519 sock_fd = qemu_opt_get(opts, "sock_fd");
3520 if (sock_fd) {
3521 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3522 }
3523
3524 qemu_opt_set_bool(fsdev, "readonly",
3525 qemu_opt_get_bool(opts, "readonly", 0),
3526 &error_abort);
3527 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3528 &error_abort);
3529 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3530 qemu_opt_set(device, "fsdev",
3531 qemu_opts_id(fsdev), &error_abort);
3532 qemu_opt_set(device, "mount_tag",
3533 qemu_opt_get(opts, "mount_tag"), &error_abort);
3534 break;
3535 }
3536 case QEMU_OPTION_virtfs_synth: {
3537 QemuOpts *fsdev;
3538 QemuOpts *device;
3539
3540 warn_report("'-virtfs_synth' is deprecated, please use "
3541 "'-fsdev synth' and '-device virtio-9p-...' "
3542 "instead");
3543
3544 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3545 1, NULL);
3546 if (!fsdev) {
3547 error_report("duplicate option: %s", "virtfs_synth");
3548 exit(1);
3549 }
3550 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3551
3552 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3553 &error_abort);
3554 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3555 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3556 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3557 break;
3558 }
3559 case QEMU_OPTION_serial:
3560 add_device_config(DEV_SERIAL, optarg);
3561 default_serial = 0;
3562 if (strncmp(optarg, "mon:", 4) == 0) {
3563 default_monitor = 0;
3564 }
3565 break;
3566 case QEMU_OPTION_watchdog:
3567 if (watchdog) {
3568 error_report("only one watchdog option may be given");
3569 return 1;
3570 }
3571 watchdog = optarg;
3572 break;
3573 case QEMU_OPTION_watchdog_action:
3574 if (select_watchdog_action(optarg) == -1) {
3575 error_report("unknown -watchdog-action parameter");
3576 exit(1);
3577 }
3578 break;
3579 case QEMU_OPTION_parallel:
3580 add_device_config(DEV_PARALLEL, optarg);
3581 default_parallel = 0;
3582 if (strncmp(optarg, "mon:", 4) == 0) {
3583 default_monitor = 0;
3584 }
3585 break;
3586 case QEMU_OPTION_debugcon:
3587 add_device_config(DEV_DEBUGCON, optarg);
3588 break;
3589 case QEMU_OPTION_loadvm:
3590 loadvm = optarg;
3591 break;
3592 case QEMU_OPTION_full_screen:
3593 dpy.has_full_screen = true;
3594 dpy.full_screen = true;
3595 break;
3596 case QEMU_OPTION_alt_grab:
3597 alt_grab = 1;
3598 break;
3599 case QEMU_OPTION_ctrl_grab:
3600 ctrl_grab = 1;
3601 break;
3602 case QEMU_OPTION_no_quit:
3603 dpy.has_window_close = true;
3604 dpy.window_close = false;
3605 break;
3606 case QEMU_OPTION_sdl:
3607 #ifdef CONFIG_SDL
3608 dpy.type = DISPLAY_TYPE_SDL;
3609 break;
3610 #else
3611 error_report("SDL support is disabled");
3612 exit(1);
3613 #endif
3614 case QEMU_OPTION_pidfile:
3615 pid_file = optarg;
3616 break;
3617 case QEMU_OPTION_win2k_hack:
3618 win2k_install_hack = 1;
3619 break;
3620 case QEMU_OPTION_acpitable:
3621 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3622 optarg, true);
3623 if (!opts) {
3624 exit(1);
3625 }
3626 acpi_table_add(opts, &error_fatal);
3627 break;
3628 case QEMU_OPTION_smbios:
3629 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3630 optarg, false);
3631 if (!opts) {
3632 exit(1);
3633 }
3634 smbios_entry_add(opts, &error_fatal);
3635 break;
3636 case QEMU_OPTION_fwcfg:
3637 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3638 optarg, true);
3639 if (opts == NULL) {
3640 exit(1);
3641 }
3642 break;
3643 case QEMU_OPTION_preconfig:
3644 preconfig_exit_requested = false;
3645 break;
3646 case QEMU_OPTION_enable_kvm:
3647 olist = qemu_find_opts("machine");
3648 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3649 break;
3650 case QEMU_OPTION_M:
3651 case QEMU_OPTION_machine:
3652 olist = qemu_find_opts("machine");
3653 opts = qemu_opts_parse_noisily(olist, optarg, true);
3654 if (!opts) {
3655 exit(1);
3656 }
3657 break;
3658 case QEMU_OPTION_no_kvm:
3659 olist = qemu_find_opts("machine");
3660 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3661 break;
3662 case QEMU_OPTION_accel:
3663 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3664 optarg, true);
3665 optarg = qemu_opt_get(accel_opts, "accel");
3666 if (!optarg || is_help_option(optarg)) {
3667 printf("Possible accelerators: kvm, xen, hax, tcg\n");
3668 exit(0);
3669 }
3670 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3671 false, &error_abort);
3672 qemu_opt_set(opts, "accel", optarg, &error_abort);
3673 break;
3674 case QEMU_OPTION_usb:
3675 olist = qemu_find_opts("machine");
3676 qemu_opts_parse_noisily(olist, "usb=on", false);
3677 break;
3678 case QEMU_OPTION_usbdevice:
3679 error_report("'-usbdevice' is deprecated, please use "
3680 "'-device usb-...' instead");
3681 olist = qemu_find_opts("machine");
3682 qemu_opts_parse_noisily(olist, "usb=on", false);
3683 add_device_config(DEV_USB, optarg);
3684 break;
3685 case QEMU_OPTION_device:
3686 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3687 optarg, true)) {
3688 exit(1);
3689 }
3690 break;
3691 case QEMU_OPTION_smp:
3692 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3693 optarg, true)) {
3694 exit(1);
3695 }
3696 break;
3697 case QEMU_OPTION_vnc:
3698 vnc_parse(optarg, &error_fatal);
3699 break;
3700 case QEMU_OPTION_no_acpi:
3701 acpi_enabled = 0;
3702 break;
3703 case QEMU_OPTION_no_hpet:
3704 no_hpet = 1;
3705 break;
3706 case QEMU_OPTION_no_reboot:
3707 no_reboot = 1;
3708 break;
3709 case QEMU_OPTION_no_shutdown:
3710 no_shutdown = 1;
3711 break;
3712 case QEMU_OPTION_show_cursor:
3713 cursor_hide = 0;
3714 break;
3715 case QEMU_OPTION_uuid:
3716 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3717 error_report("failed to parse UUID string: wrong format");
3718 exit(1);
3719 }
3720 qemu_uuid_set = true;
3721 break;
3722 case QEMU_OPTION_option_rom:
3723 if (nb_option_roms >= MAX_OPTION_ROMS) {
3724 error_report("too many option ROMs");
3725 exit(1);
3726 }
3727 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3728 optarg, true);
3729 if (!opts) {
3730 exit(1);
3731 }
3732 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3733 option_rom[nb_option_roms].bootindex =
3734 qemu_opt_get_number(opts, "bootindex", -1);
3735 if (!option_rom[nb_option_roms].name) {
3736 error_report("Option ROM file is not specified");
3737 exit(1);
3738 }
3739 nb_option_roms++;
3740 break;
3741 case QEMU_OPTION_semihosting:
3742 semihosting.enabled = true;
3743 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3744 break;
3745 case QEMU_OPTION_semihosting_config:
3746 semihosting.enabled = true;
3747 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3748 optarg, false);
3749 if (opts != NULL) {
3750 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3751 true);
3752 const char *target = qemu_opt_get(opts, "target");
3753 if (target != NULL) {
3754 if (strcmp("native", target) == 0) {
3755 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3756 } else if (strcmp("gdb", target) == 0) {
3757 semihosting.target = SEMIHOSTING_TARGET_GDB;
3758 } else if (strcmp("auto", target) == 0) {
3759 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3760 } else {
3761 error_report("unsupported semihosting-config %s",
3762 optarg);
3763 exit(1);
3764 }
3765 } else {
3766 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3767 }
3768 /* Set semihosting argument count and vector */
3769 qemu_opt_foreach(opts, add_semihosting_arg,
3770 &semihosting, NULL);
3771 } else {
3772 error_report("unsupported semihosting-config %s", optarg);
3773 exit(1);
3774 }
3775 break;
3776 case QEMU_OPTION_name:
3777 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3778 optarg, true);
3779 if (!opts) {
3780 exit(1);
3781 }
3782 break;
3783 case QEMU_OPTION_prom_env:
3784 if (nb_prom_envs >= MAX_PROM_ENVS) {
3785 error_report("too many prom variables");
3786 exit(1);
3787 }
3788 prom_envs[nb_prom_envs] = optarg;
3789 nb_prom_envs++;
3790 break;
3791 case QEMU_OPTION_old_param:
3792 old_param = 1;
3793 break;
3794 case QEMU_OPTION_rtc:
3795 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3796 false);
3797 if (!opts) {
3798 exit(1);
3799 }
3800 break;
3801 case QEMU_OPTION_tb_size:
3802 #ifndef CONFIG_TCG
3803 error_report("TCG is disabled");
3804 exit(1);
3805 #endif
3806 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3807 error_report("Invalid argument to -tb-size");
3808 exit(1);
3809 }
3810 break;
3811 case QEMU_OPTION_icount:
3812 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3813 optarg, true);
3814 if (!icount_opts) {
3815 exit(1);
3816 }
3817 break;
3818 case QEMU_OPTION_incoming:
3819 if (!incoming) {
3820 runstate_set(RUN_STATE_INMIGRATE);
3821 }
3822 incoming = optarg;
3823 break;
3824 case QEMU_OPTION_only_migratable:
3825 only_migratable = 1;
3826 break;
3827 case QEMU_OPTION_nodefaults:
3828 has_defaults = 0;
3829 break;
3830 case QEMU_OPTION_xen_domid:
3831 if (!(xen_available())) {
3832 error_report("Option not supported for this target");
3833 exit(1);
3834 }
3835 xen_domid = atoi(optarg);
3836 break;
3837 case QEMU_OPTION_xen_attach:
3838 if (!(xen_available())) {
3839 error_report("Option not supported for this target");
3840 exit(1);
3841 }
3842 xen_mode = XEN_ATTACH;
3843 break;
3844 case QEMU_OPTION_xen_domid_restrict:
3845 if (!(xen_available())) {
3846 error_report("Option not supported for this target");
3847 exit(1);
3848 }
3849 xen_domid_restrict = true;
3850 break;
3851 case QEMU_OPTION_trace:
3852 g_free(trace_file);
3853 trace_file = trace_opt_parse(optarg);
3854 break;
3855 case QEMU_OPTION_readconfig:
3856 {
3857 int ret = qemu_read_config_file(optarg);
3858 if (ret < 0) {
3859 error_report("read config %s: %s", optarg,
3860 strerror(-ret));
3861 exit(1);
3862 }
3863 break;
3864 }
3865 case QEMU_OPTION_spice:
3866 olist = qemu_find_opts("spice");
3867 if (!olist) {
3868 error_report("spice support is disabled");
3869 exit(1);
3870 }
3871 opts = qemu_opts_parse_noisily(olist, optarg, false);
3872 if (!opts) {
3873 exit(1);
3874 }
3875 display_remote++;
3876 break;
3877 case QEMU_OPTION_writeconfig:
3878 {
3879 FILE *fp;
3880 if (strcmp(optarg, "-") == 0) {
3881 fp = stdout;
3882 } else {
3883 fp = fopen(optarg, "w");
3884 if (fp == NULL) {
3885 error_report("open %s: %s", optarg,
3886 strerror(errno));
3887 exit(1);
3888 }
3889 }
3890 qemu_config_write(fp);
3891 if (fp != stdout) {
3892 fclose(fp);
3893 }
3894 break;
3895 }
3896 case QEMU_OPTION_qtest:
3897 qtest_chrdev = optarg;
3898 break;
3899 case QEMU_OPTION_qtest_log:
3900 qtest_log = optarg;
3901 break;
3902 case QEMU_OPTION_sandbox:
3903 olist = qemu_find_opts("sandbox");
3904 if (!olist) {
3905 #ifndef CONFIG_SECCOMP
3906 error_report("-sandbox support is not enabled "
3907 "in this QEMU binary");
3908 #endif
3909 exit(1);
3910 }
3911
3912 opts = qemu_opts_parse_noisily(olist, optarg, true);
3913 if (!opts) {
3914 exit(1);
3915 }
3916 break;
3917 case QEMU_OPTION_add_fd:
3918 #ifndef _WIN32
3919 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3920 optarg, false);
3921 if (!opts) {
3922 exit(1);
3923 }
3924 #else
3925 error_report("File descriptor passing is disabled on this "
3926 "platform");
3927 exit(1);
3928 #endif
3929 break;
3930 case QEMU_OPTION_object:
3931 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3932 optarg, true);
3933 if (!opts) {
3934 exit(1);
3935 }
3936 break;
3937 case QEMU_OPTION_realtime:
3938 warn_report("'-realtime mlock=...' is deprecated, please use "
3939 "'-overcommit mem-lock=...' instead");
3940 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3941 optarg, false);
3942 if (!opts) {
3943 exit(1);
3944 }
3945 /* Don't override the -overcommit option if set */
3946 enable_mlock = enable_mlock ||
3947 qemu_opt_get_bool(opts, "mlock", true);
3948 break;
3949 case QEMU_OPTION_overcommit:
3950 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3951 optarg, false);
3952 if (!opts) {
3953 exit(1);
3954 }
3955 /* Don't override the -realtime option if set */
3956 enable_mlock = enable_mlock ||
3957 qemu_opt_get_bool(opts, "mem-lock", false);
3958 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3959 break;
3960 case QEMU_OPTION_msg:
3961 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3962 false);
3963 if (!opts) {
3964 exit(1);
3965 }
3966 configure_msg(opts);
3967 break;
3968 case QEMU_OPTION_dump_vmstate:
3969 if (vmstate_dump_file) {
3970 error_report("only one '-dump-vmstate' "
3971 "option may be given");
3972 exit(1);
3973 }
3974 vmstate_dump_file = fopen(optarg, "w");
3975 if (vmstate_dump_file == NULL) {
3976 error_report("open %s: %s", optarg, strerror(errno));
3977 exit(1);
3978 }
3979 break;
3980 case QEMU_OPTION_enable_sync_profile:
3981 qsp_enable();
3982 break;
3983 case QEMU_OPTION_nouserconfig:
3984 /* Nothing to be parsed here. Especially, do not error out below. */
3985 break;
3986 default:
3987 if (os_parse_cmd_args(popt->index, optarg)) {
3988 error_report("Option not supported in this build");
3989 exit(1);
3990 }
3991 }
3992 }
3993 }
3994 /*
3995 * Clear error location left behind by the loop.
3996 * Best done right after the loop. Do not insert code here!
3997 */
3998 loc_set_none();
3999
4000 user_register_global_props();
4001
4002 replay_configure(icount_opts);
4003
4004 if (incoming && !preconfig_exit_requested) {
4005 error_report("'preconfig' and 'incoming' options are "
4006 "mutually exclusive");
4007 exit(EXIT_FAILURE);
4008 }
4009
4010 configure_rtc(qemu_find_opts_singleton("rtc"));
4011
4012 machine_class = select_machine();
4013 object_set_machine_compat_props(machine_class->compat_props);
4014
4015 set_memory_options(&ram_slots, &maxram_size, machine_class);
4016
4017 os_daemonize();
4018 rcu_disable_atfork();
4019
4020 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
4021 error_reportf_err(err, "cannot create PID file: ");
4022 exit(1);
4023 }
4024
4025 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
4026 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4027
4028 if (qemu_init_main_loop(&main_loop_err)) {
4029 error_report_err(main_loop_err);
4030 exit(1);
4031 }
4032
4033 #ifdef CONFIG_SECCOMP
4034 olist = qemu_find_opts_err("sandbox", NULL);
4035 if (olist) {
4036 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4037 }
4038 #endif
4039
4040 qemu_opts_foreach(qemu_find_opts("name"),
4041 parse_name, NULL, &error_fatal);
4042
4043 #ifndef _WIN32
4044 qemu_opts_foreach(qemu_find_opts("add-fd"),
4045 parse_add_fd, NULL, &error_fatal);
4046
4047 qemu_opts_foreach(qemu_find_opts("add-fd"),
4048 cleanup_add_fd, NULL, &error_fatal);
4049 #endif
4050
4051 current_machine = MACHINE(object_new(object_class_get_name(
4052 OBJECT_CLASS(machine_class))));
4053 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4054 exit(0);
4055 }
4056 object_property_add_child(object_get_root(), "machine",
4057 OBJECT(current_machine), &error_abort);
4058 object_property_add_child(container_get(OBJECT(current_machine),
4059 "/unattached"),
4060 "sysbus", OBJECT(sysbus_get_default()),
4061 NULL);
4062
4063 if (machine_class->minimum_page_bits) {
4064 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4065 /* This would be a board error: specifying a minimum smaller than
4066 * a target's compile-time fixed setting.
4067 */
4068 g_assert_not_reached();
4069 }
4070 }
4071
4072 cpu_exec_init_all();
4073
4074 if (machine_class->hw_version) {
4075 qemu_set_hw_version(machine_class->hw_version);
4076 }
4077
4078 if (cpu_option && is_help_option(cpu_option)) {
4079 list_cpus(cpu_option);
4080 exit(0);
4081 }
4082
4083 if (!trace_init_backends()) {
4084 exit(1);
4085 }
4086 trace_init_file(trace_file);
4087
4088 /* Open the logfile at this point and set the log mask if necessary.
4089 */
4090 if (log_file) {
4091 qemu_set_log_filename(log_file, &error_fatal);
4092 }
4093
4094 if (log_mask) {
4095 int mask;
4096 mask = qemu_str_to_log_mask(log_mask);
4097 if (!mask) {
4098 qemu_print_log_usage(stdout);
4099 exit(1);
4100 }
4101 qemu_set_log(mask);
4102 } else {
4103 qemu_set_log(0);
4104 }
4105
4106 /* add configured firmware directories */
4107 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4108 for (i = 0; dirs[i] != NULL; i++) {
4109 qemu_add_data_dir(dirs[i]);
4110 }
4111 g_strfreev(dirs);
4112
4113 /* try to find datadir relative to the executable path */
4114 dir = os_find_datadir();
4115 qemu_add_data_dir(dir);
4116 g_free(dir);
4117
4118 /* add the datadir specified when building */
4119 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4120
4121 /* -L help lists the data directories and exits. */
4122 if (list_data_dirs) {
4123 for (i = 0; i < data_dir_idx; i++) {
4124 printf("%s\n", data_dir[i]);
4125 }
4126 exit(0);
4127 }
4128
4129 /* machine_class: default to UP */
4130 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4131 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4132 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4133
4134 /* default to machine_class->default_cpus */
4135 smp_cpus = machine_class->default_cpus;
4136 max_cpus = machine_class->default_cpus;
4137
4138 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4139
4140 /* sanity-check smp_cpus and max_cpus against machine_class */
4141 if (smp_cpus < machine_class->min_cpus) {
4142 error_report("Invalid SMP CPUs %d. The min CPUs "
4143 "supported by machine '%s' is %d", smp_cpus,
4144 machine_class->name, machine_class->min_cpus);
4145 exit(1);
4146 }
4147 if (max_cpus > machine_class->max_cpus) {
4148 error_report("Invalid SMP CPUs %d. The max CPUs "
4149 "supported by machine '%s' is %d", max_cpus,
4150 machine_class->name, machine_class->max_cpus);
4151 exit(1);
4152 }
4153
4154 /*
4155 * Get the default machine options from the machine if it is not already
4156 * specified either by the configuration file or by the command line.
4157 */
4158 if (machine_class->default_machine_opts) {
4159 qemu_opts_set_defaults(qemu_find_opts("machine"),
4160 machine_class->default_machine_opts, 0);
4161 }
4162
4163 qemu_opts_foreach(qemu_find_opts("device"),
4164 default_driver_check, NULL, NULL);
4165 qemu_opts_foreach(qemu_find_opts("global"),
4166 default_driver_check, NULL, NULL);
4167
4168 if (!vga_model && !default_vga) {
4169 vga_interface_type = VGA_DEVICE;
4170 }
4171 if (!has_defaults || machine_class->no_serial) {
4172 default_serial = 0;
4173 }
4174 if (!has_defaults || machine_class->no_parallel) {
4175 default_parallel = 0;
4176 }
4177 if (!has_defaults || machine_class->no_floppy) {
4178 default_floppy = 0;
4179 }
4180 if (!has_defaults || machine_class->no_cdrom) {
4181 default_cdrom = 0;
4182 }
4183 if (!has_defaults || machine_class->no_sdcard) {
4184 default_sdcard = 0;
4185 }
4186 if (!has_defaults) {
4187 default_monitor = 0;
4188 default_net = 0;
4189 default_vga = 0;
4190 }
4191
4192 if (is_daemonized()) {
4193 if (!preconfig_exit_requested) {
4194 error_report("'preconfig' and 'daemonize' options are "
4195 "mutually exclusive");
4196 exit(EXIT_FAILURE);
4197 }
4198
4199 /* According to documentation and historically, -nographic redirects
4200 * serial port, parallel port and monitor to stdio, which does not work
4201 * with -daemonize. We can redirect these to null instead, but since
4202 * -nographic is legacy, let's just error out.
4203 * We disallow -nographic only if all other ports are not redirected
4204 * explicitly, to not break existing legacy setups which uses
4205 * -nographic _and_ redirects all ports explicitly - this is valid
4206 * usage, -nographic is just a no-op in this case.
4207 */
4208 if (nographic
4209 && (default_parallel || default_serial || default_monitor)) {
4210 error_report("-nographic cannot be used with -daemonize");
4211 exit(1);
4212 }
4213 #ifdef CONFIG_CURSES
4214 if (dpy.type == DISPLAY_TYPE_CURSES) {
4215 error_report("curses display cannot be used with -daemonize");
4216 exit(1);
4217 }
4218 #endif
4219 }
4220
4221 if (nographic) {
4222 if (default_parallel)
4223 add_device_config(DEV_PARALLEL, "null");
4224 if (default_serial && default_monitor) {
4225 add_device_config(DEV_SERIAL, "mon:stdio");
4226 } else {
4227 if (default_serial)
4228 add_device_config(DEV_SERIAL, "stdio");
4229 if (default_monitor)
4230 monitor_parse("stdio", "readline", false);
4231 }
4232 } else {
4233 if (default_serial)
4234 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4235 if (default_parallel)
4236 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4237 if (default_monitor)
4238 monitor_parse("vc:80Cx24C", "readline", false);
4239 }
4240
4241 #if defined(CONFIG_VNC)
4242 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4243 display_remote++;
4244 }
4245 #endif
4246 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4247 if (!qemu_display_find_default(&dpy)) {
4248 dpy.type = DISPLAY_TYPE_NONE;
4249 #if defined(CONFIG_VNC)
4250 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4251 #endif
4252 }
4253 }
4254 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4255 dpy.type = DISPLAY_TYPE_NONE;
4256 }
4257
4258 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4259 error_report("-alt-grab and -ctrl-grab are only valid "
4260 "for SDL, ignoring option");
4261 }
4262 if (dpy.has_window_close &&
4263 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4264 error_report("-no-quit is only valid for GTK and SDL, "
4265 "ignoring option");
4266 }
4267
4268 qemu_display_early_init(&dpy);
4269 qemu_console_early_init();
4270
4271 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4272 #if defined(CONFIG_OPENGL)
4273 error_report("OpenGL is not supported by the display");
4274 #else
4275 error_report("OpenGL support is disabled");
4276 #endif
4277 exit(1);
4278 }
4279
4280 page_size_init();
4281 socket_init();
4282
4283 qemu_opts_foreach(qemu_find_opts("object"),
4284 user_creatable_add_opts_foreach,
4285 object_create_initial, &error_fatal);
4286
4287 qemu_opts_foreach(qemu_find_opts("chardev"),
4288 chardev_init_func, NULL, &error_fatal);
4289
4290 #ifdef CONFIG_VIRTFS
4291 qemu_opts_foreach(qemu_find_opts("fsdev"),
4292 fsdev_init_func, NULL, &error_fatal);
4293 #endif
4294
4295 if (qemu_opts_foreach(qemu_find_opts("device"),
4296 device_help_func, NULL, NULL)) {
4297 exit(0);
4298 }
4299
4300 /*
4301 * Note: we need to create block backends before
4302 * machine_set_property(), so machine properties can refer to
4303 * them.
4304 */
4305 configure_blockdev(&bdo_queue, machine_class, snapshot);
4306
4307 machine_opts = qemu_get_machine_opts();
4308 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4309 &error_fatal);
4310 current_machine->ram_size = ram_size;
4311 current_machine->maxram_size = maxram_size;
4312 current_machine->ram_slots = ram_slots;
4313
4314 /*
4315 * Note: uses machine properties such as kernel-irqchip, must run
4316 * after machine_set_property().
4317 */
4318 configure_accelerator(current_machine, argv[0]);
4319
4320 /*
4321 * Beware, QOM objects created before this point miss global and
4322 * compat properties.
4323 *
4324 * Global properties get set up by qdev_prop_register_global(),
4325 * called from user_register_global_props(), and certain option
4326 * desugaring. Also in CPU feature desugaring (buried in
4327 * parse_cpu_option()), which happens below this point, but may
4328 * only target the CPU type, which can only be created after
4329 * parse_cpu_option() returned the type.
4330 *
4331 * Machine compat properties: object_set_machine_compat_props().
4332 * Accelerator compat props: object_set_accelerator_compat_props(),
4333 * called from configure_accelerator().
4334 */
4335
4336 if (!qtest_enabled() && machine_class->deprecation_reason) {
4337 error_report("Machine type '%s' is deprecated: %s",
4338 machine_class->name, machine_class->deprecation_reason);
4339 }
4340
4341 /*
4342 * Note: creates a QOM object, must run only after global and
4343 * compat properties have been set up.
4344 */
4345 migration_object_init();
4346
4347 if (qtest_chrdev) {
4348 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4349 }
4350
4351 machine_opts = qemu_get_machine_opts();
4352 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4353 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4354 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4355 bios_name = qemu_opt_get(machine_opts, "firmware");
4356
4357 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4358 if (opts) {
4359 boot_order = qemu_opt_get(opts, "order");
4360 if (boot_order) {
4361 validate_bootdevices(boot_order, &error_fatal);
4362 }
4363
4364 boot_once = qemu_opt_get(opts, "once");
4365 if (boot_once) {
4366 validate_bootdevices(boot_once, &error_fatal);
4367 }
4368
4369 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4370 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4371 }
4372
4373 if (!boot_order) {
4374 boot_order = machine_class->default_boot_order;
4375 }
4376
4377 if (!kernel_cmdline) {
4378 kernel_cmdline = "";
4379 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4380 }
4381
4382 linux_boot = (kernel_filename != NULL);
4383
4384 if (!linux_boot && *kernel_cmdline != '\0') {
4385 error_report("-append only allowed with -kernel option");
4386 exit(1);
4387 }
4388
4389 if (!linux_boot && initrd_filename != NULL) {
4390 error_report("-initrd only allowed with -kernel option");
4391 exit(1);
4392 }
4393
4394 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4395 /* fall back to the -kernel/-append */
4396 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4397 }
4398
4399 os_set_line_buffering();
4400
4401 /* spice needs the timers to be initialized by this point */
4402 qemu_spice_init();
4403
4404 cpu_ticks_init();
4405 if (icount_opts) {
4406 if (!tcg_enabled()) {
4407 error_report("-icount is not allowed with hardware virtualization");
4408 exit(1);
4409 }
4410 configure_icount(icount_opts, &error_abort);
4411 qemu_opts_del(icount_opts);
4412 }
4413
4414 if (tcg_enabled()) {
4415 qemu_tcg_configure(accel_opts, &error_fatal);
4416 }
4417
4418 if (default_net) {
4419 QemuOptsList *net = qemu_find_opts("net");
4420 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4421 #ifdef CONFIG_SLIRP
4422 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4423 #endif
4424 }
4425
4426 if (net_init_clients(&err) < 0) {
4427 error_report_err(err);
4428 exit(1);
4429 }
4430
4431 qemu_opts_foreach(qemu_find_opts("object"),
4432 user_creatable_add_opts_foreach,
4433 object_create_delayed, &error_fatal);
4434
4435 tpm_init();
4436
4437 /* init the bluetooth world */
4438 if (foreach_device_config(DEV_BT, bt_parse))
4439 exit(1);
4440
4441 if (!xen_enabled()) {
4442 /* On 32-bit hosts, QEMU is limited by virtual address space */
4443 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4444 error_report("at most 2047 MB RAM can be simulated");
4445 exit(1);
4446 }
4447 }
4448
4449 blk_mig_init();
4450 ram_mig_init();
4451 dirty_bitmap_mig_init();
4452
4453 qemu_opts_foreach(qemu_find_opts("mon"),
4454 mon_init_func, NULL, &error_fatal);
4455
4456 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4457 exit(1);
4458 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4459 exit(1);
4460 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4461 exit(1);
4462
4463 /* If no default VGA is requested, the default is "none". */
4464 if (default_vga) {
4465 vga_model = get_default_vga_model(machine_class);
4466 }
4467 if (vga_model) {
4468 select_vgahw(machine_class, vga_model);
4469 }
4470
4471 if (watchdog) {
4472 i = select_watchdog(watchdog);
4473 if (i > 0)
4474 exit (i == 1 ? 1 : 0);
4475 }
4476
4477 /* This checkpoint is required by replay to separate prior clock
4478 reading from the other reads, because timer polling functions query
4479 clock values from the log. */
4480 replay_checkpoint(CHECKPOINT_INIT);
4481 qdev_machine_init();
4482
4483 current_machine->boot_order = boot_order;
4484
4485 /* parse features once if machine provides default cpu_type */
4486 current_machine->cpu_type = machine_class->default_cpu_type;
4487 if (cpu_option) {
4488 current_machine->cpu_type = parse_cpu_option(cpu_option);
4489 }
4490 parse_numa_opts(current_machine);
4491
4492 /* do monitor/qmp handling at preconfig state if requested */
4493 main_loop();
4494
4495 audio_init_audiodevs();
4496
4497 /* from here on runstate is RUN_STATE_PRELAUNCH */
4498 machine_run_board_init(current_machine);
4499
4500 realtime_init();
4501
4502 soundhw_init();
4503
4504 if (hax_enabled()) {
4505 hax_sync_vcpus();
4506 }
4507
4508 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4509 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4510
4511 /* init USB devices */
4512 if (machine_usb(current_machine)) {
4513 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4514 exit(1);
4515 }
4516
4517 /* Check if IGD GFX passthrough. */
4518 igd_gfx_passthru();
4519
4520 /* init generic devices */
4521 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4522 qemu_opts_foreach(qemu_find_opts("device"),
4523 device_init_func, NULL, &error_fatal);
4524
4525 cpu_synchronize_all_post_init();
4526
4527 rom_reset_order_override();
4528
4529 /* Did we create any drives that we failed to create a device for? */
4530 drive_check_orphaned();
4531
4532 /* Don't warn about the default network setup that you get if
4533 * no command line -net or -netdev options are specified. There
4534 * are two cases that we would otherwise complain about:
4535 * (1) board doesn't support a NIC but the implicit "-net nic"
4536 * requested one
4537 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4538 * sets up a nic that isn't connected to anything.
4539 */
4540 if (!default_net && (!qtest_enabled() || has_defaults)) {
4541 net_check_clients();
4542 }
4543
4544 if (boot_once) {
4545 qemu_boot_set(boot_once, &error_fatal);
4546 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4547 }
4548
4549 /* init local displays */
4550 ds = init_displaystate();
4551 qemu_display_init(ds, &dpy);
4552
4553 /* must be after terminal init, SDL library changes signal handlers */
4554 os_setup_signal_handling();
4555
4556 /* init remote displays */
4557 #ifdef CONFIG_VNC
4558 qemu_opts_foreach(qemu_find_opts("vnc"),
4559 vnc_init_func, NULL, &error_fatal);
4560 #endif
4561
4562 if (using_spice) {
4563 qemu_spice_display_init();
4564 }
4565
4566 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4567 exit(1);
4568 }
4569
4570 qdev_machine_creation_done();
4571
4572 /* TODO: once all bus devices are qdevified, this should be done
4573 * when bus is created by qdev.c */
4574 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4575 qemu_run_machine_init_done_notifiers();
4576
4577 if (rom_check_and_register_reset() != 0) {
4578 error_report("rom check and register reset failed");
4579 exit(1);
4580 }
4581
4582 replay_start();
4583
4584 /* This checkpoint is required by replay to separate prior clock
4585 reading from the other reads, because timer polling functions query
4586 clock values from the log. */
4587 replay_checkpoint(CHECKPOINT_RESET);
4588 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4589 register_global_state();
4590 if (loadvm) {
4591 Error *local_err = NULL;
4592 if (load_snapshot(loadvm, &local_err) < 0) {
4593 error_report_err(local_err);
4594 autostart = 0;
4595 exit(1);
4596 }
4597 }
4598 if (replay_mode != REPLAY_MODE_NONE) {
4599 replay_vmstate_init();
4600 }
4601
4602 qdev_prop_check_globals();
4603 if (vmstate_dump_file) {
4604 /* dump and exit */
4605 dump_vmstate_json_to_file(vmstate_dump_file);
4606 return 0;
4607 }
4608
4609 if (incoming) {
4610 Error *local_err = NULL;
4611 qemu_start_incoming_migration(incoming, &local_err);
4612 if (local_err) {
4613 error_reportf_err(local_err, "-incoming %s: ", incoming);
4614 exit(1);
4615 }
4616 } else if (autostart) {
4617 vm_start();
4618 }
4619
4620 accel_setup_post(current_machine);
4621 os_setup_post();
4622
4623 main_loop();
4624
4625 gdbserver_cleanup();
4626
4627 /*
4628 * cleaning up the migration object cancels any existing migration
4629 * try to do this early so that it also stops using devices.
4630 */
4631 migration_shutdown();
4632
4633 /* No more vcpu or device emulation activity beyond this point */
4634 vm_shutdown();
4635
4636 job_cancel_sync_all();
4637 bdrv_close_all();
4638
4639 res_free();
4640
4641 /* vhost-user must be cleaned up before chardevs. */
4642 tpm_cleanup();
4643 net_cleanup();
4644 audio_cleanup();
4645 monitor_cleanup();
4646 qemu_chr_cleanup();
4647 user_creatable_cleanup();
4648 /* TODO: unref root container, check all devices are ok */
4649
4650 return 0;
4651 }
AR7 emulation for QEMU