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block: Allow omitting the 'backing' option in certain cases
[qemu/ar7.git] / vl.c
blobe9239d55ad6afc431c16cb9602e167c6ac95b9a1
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 size_t boot_splash_filedata_size;
189 bool wakeup_suspend_enabled;
190
191 int icount_align_option;
192
193 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
194 * little-endian "wire format" described in the SMBIOS 2.6 specification.
195 */
196 QemuUUID qemu_uuid;
197 bool qemu_uuid_set;
198
199 static NotifierList exit_notifiers =
200 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
201
202 static NotifierList machine_init_done_notifiers =
203 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
204
205 bool xen_allowed;
206 uint32_t xen_domid;
207 enum xen_mode xen_mode = XEN_EMULATE;
208 bool xen_domid_restrict;
209
210 static int has_defaults = 1;
211 static int default_serial = 1;
212 static int default_parallel = 1;
213 static int default_monitor = 1;
214 static int default_floppy = 1;
215 static int default_cdrom = 1;
216 static int default_sdcard = 1;
217 static int default_vga = 1;
218 static int default_net = 1;
219
220 static struct {
221 const char *driver;
222 int *flag;
223 } default_list[] = {
224 { .driver = "isa-serial", .flag = &default_serial },
225 { .driver = "isa-parallel", .flag = &default_parallel },
226 { .driver = "isa-fdc", .flag = &default_floppy },
227 { .driver = "floppy", .flag = &default_floppy },
228 { .driver = "ide-cd", .flag = &default_cdrom },
229 { .driver = "ide-hd", .flag = &default_cdrom },
230 { .driver = "ide-drive", .flag = &default_cdrom },
231 { .driver = "scsi-cd", .flag = &default_cdrom },
232 { .driver = "scsi-hd", .flag = &default_cdrom },
233 { .driver = "VGA", .flag = &default_vga },
234 { .driver = "isa-vga", .flag = &default_vga },
235 { .driver = "cirrus-vga", .flag = &default_vga },
236 { .driver = "isa-cirrus-vga", .flag = &default_vga },
237 { .driver = "vmware-svga", .flag = &default_vga },
238 { .driver = "qxl-vga", .flag = &default_vga },
239 { .driver = "virtio-vga", .flag = &default_vga },
240 { .driver = "ati-vga", .flag = &default_vga },
241 };
242
243 static QemuOptsList qemu_rtc_opts = {
244 .name = "rtc",
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
246 .merge_lists = true,
247 .desc = {
248 {
249 .name = "base",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "clock",
253 .type = QEMU_OPT_STRING,
254 },{
255 .name = "driftfix",
256 .type = QEMU_OPT_STRING,
257 },
258 { /* end of list */ }
259 },
260 };
261
262 static QemuOptsList qemu_option_rom_opts = {
263 .name = "option-rom",
264 .implied_opt_name = "romfile",
265 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
266 .desc = {
267 {
268 .name = "bootindex",
269 .type = QEMU_OPT_NUMBER,
270 }, {
271 .name = "romfile",
272 .type = QEMU_OPT_STRING,
273 },
274 { /* end of list */ }
275 },
276 };
277
278 static QemuOptsList qemu_machine_opts = {
279 .name = "machine",
280 .implied_opt_name = "type",
281 .merge_lists = true,
282 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
283 .desc = {
284 /*
285 * no elements => accept any
286 * sanity checking will happen later
287 * when setting machine properties
288 */
289 { }
290 },
291 };
292
293 static QemuOptsList qemu_accel_opts = {
294 .name = "accel",
295 .implied_opt_name = "accel",
296 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
297 .merge_lists = true,
298 .desc = {
299 {
300 .name = "accel",
301 .type = QEMU_OPT_STRING,
302 .help = "Select the type of accelerator",
303 },
304 {
305 .name = "thread",
306 .type = QEMU_OPT_STRING,
307 .help = "Enable/disable multi-threaded TCG",
308 },
309 { /* end of list */ }
310 },
311 };
312
313 static QemuOptsList qemu_boot_opts = {
314 .name = "boot-opts",
315 .implied_opt_name = "order",
316 .merge_lists = true,
317 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
318 .desc = {
319 {
320 .name = "order",
321 .type = QEMU_OPT_STRING,
322 }, {
323 .name = "once",
324 .type = QEMU_OPT_STRING,
325 }, {
326 .name = "menu",
327 .type = QEMU_OPT_BOOL,
328 }, {
329 .name = "splash",
330 .type = QEMU_OPT_STRING,
331 }, {
332 .name = "splash-time",
333 .type = QEMU_OPT_NUMBER,
334 }, {
335 .name = "reboot-timeout",
336 .type = QEMU_OPT_NUMBER,
337 }, {
338 .name = "strict",
339 .type = QEMU_OPT_BOOL,
340 },
341 { /*End of list */ }
342 },
343 };
344
345 static QemuOptsList qemu_add_fd_opts = {
346 .name = "add-fd",
347 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
348 .desc = {
349 {
350 .name = "fd",
351 .type = QEMU_OPT_NUMBER,
352 .help = "file descriptor of which a duplicate is added to fd set",
353 },{
354 .name = "set",
355 .type = QEMU_OPT_NUMBER,
356 .help = "ID of the fd set to add fd to",
357 },{
358 .name = "opaque",
359 .type = QEMU_OPT_STRING,
360 .help = "free-form string used to describe fd",
361 },
362 { /* end of list */ }
363 },
364 };
365
366 static QemuOptsList qemu_object_opts = {
367 .name = "object",
368 .implied_opt_name = "qom-type",
369 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
370 .desc = {
371 { }
372 },
373 };
374
375 static QemuOptsList qemu_tpmdev_opts = {
376 .name = "tpmdev",
377 .implied_opt_name = "type",
378 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
379 .desc = {
380 /* options are defined in the TPM backends */
381 { /* end of list */ }
382 },
383 };
384
385 static QemuOptsList qemu_realtime_opts = {
386 .name = "realtime",
387 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
388 .desc = {
389 {
390 .name = "mlock",
391 .type = QEMU_OPT_BOOL,
392 },
393 { /* end of list */ }
394 },
395 };
396
397 static QemuOptsList qemu_overcommit_opts = {
398 .name = "overcommit",
399 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
400 .desc = {
401 {
402 .name = "mem-lock",
403 .type = QEMU_OPT_BOOL,
404 },
405 {
406 .name = "cpu-pm",
407 .type = QEMU_OPT_BOOL,
408 },
409 { /* end of list */ }
410 },
411 };
412
413 static QemuOptsList qemu_msg_opts = {
414 .name = "msg",
415 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
416 .desc = {
417 {
418 .name = "timestamp",
419 .type = QEMU_OPT_BOOL,
420 },
421 { /* end of list */ }
422 },
423 };
424
425 static QemuOptsList qemu_name_opts = {
426 .name = "name",
427 .implied_opt_name = "guest",
428 .merge_lists = true,
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
430 .desc = {
431 {
432 .name = "guest",
433 .type = QEMU_OPT_STRING,
434 .help = "Sets the name of the guest.\n"
435 "This name will be displayed in the SDL window caption.\n"
436 "The name will also be used for the VNC server",
437 }, {
438 .name = "process",
439 .type = QEMU_OPT_STRING,
440 .help = "Sets the name of the QEMU process, as shown in top etc",
441 }, {
442 .name = "debug-threads",
443 .type = QEMU_OPT_BOOL,
444 .help = "When enabled, name the individual threads; defaults off.\n"
445 "NOTE: The thread names are for debugging and not a\n"
446 "stable API.",
447 },
448 { /* End of list */ }
449 },
450 };
451
452 static QemuOptsList qemu_mem_opts = {
453 .name = "memory",
454 .implied_opt_name = "size",
455 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
456 .merge_lists = true,
457 .desc = {
458 {
459 .name = "size",
460 .type = QEMU_OPT_SIZE,
461 },
462 {
463 .name = "slots",
464 .type = QEMU_OPT_NUMBER,
465 },
466 {
467 .name = "maxmem",
468 .type = QEMU_OPT_SIZE,
469 },
470 { /* end of list */ }
471 },
472 };
473
474 static QemuOptsList qemu_icount_opts = {
475 .name = "icount",
476 .implied_opt_name = "shift",
477 .merge_lists = true,
478 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
479 .desc = {
480 {
481 .name = "shift",
482 .type = QEMU_OPT_STRING,
483 }, {
484 .name = "align",
485 .type = QEMU_OPT_BOOL,
486 }, {
487 .name = "sleep",
488 .type = QEMU_OPT_BOOL,
489 }, {
490 .name = "rr",
491 .type = QEMU_OPT_STRING,
492 }, {
493 .name = "rrfile",
494 .type = QEMU_OPT_STRING,
495 }, {
496 .name = "rrsnapshot",
497 .type = QEMU_OPT_STRING,
498 },
499 { /* end of list */ }
500 },
501 };
502
503 static QemuOptsList qemu_semihosting_config_opts = {
504 .name = "semihosting-config",
505 .implied_opt_name = "enable",
506 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
507 .desc = {
508 {
509 .name = "enable",
510 .type = QEMU_OPT_BOOL,
511 }, {
512 .name = "target",
513 .type = QEMU_OPT_STRING,
514 }, {
515 .name = "arg",
516 .type = QEMU_OPT_STRING,
517 },
518 { /* end of list */ }
519 },
520 };
521
522 static QemuOptsList qemu_fw_cfg_opts = {
523 .name = "fw_cfg",
524 .implied_opt_name = "name",
525 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
526 .desc = {
527 {
528 .name = "name",
529 .type = QEMU_OPT_STRING,
530 .help = "Sets the fw_cfg name of the blob to be inserted",
531 }, {
532 .name = "file",
533 .type = QEMU_OPT_STRING,
534 .help = "Sets the name of the file from which "
535 "the fw_cfg blob will be loaded",
536 }, {
537 .name = "string",
538 .type = QEMU_OPT_STRING,
539 .help = "Sets content of the blob to be inserted from a string",
540 },
541 { /* end of list */ }
542 },
543 };
544
545 /**
546 * Get machine options
547 *
548 * Returns: machine options (never null).
549 */
550 QemuOpts *qemu_get_machine_opts(void)
551 {
552 return qemu_find_opts_singleton("machine");
553 }
554
555 const char *qemu_get_vm_name(void)
556 {
557 return qemu_name;
558 }
559
560 static void res_free(void)
561 {
562 g_free(boot_splash_filedata);
563 boot_splash_filedata = NULL;
564 }
565
566 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
567 {
568 const char *driver = qemu_opt_get(opts, "driver");
569 int i;
570
571 if (!driver)
572 return 0;
573 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
574 if (strcmp(default_list[i].driver, driver) != 0)
575 continue;
576 *(default_list[i].flag) = 0;
577 }
578 return 0;
579 }
580
581 /***********************************************************/
582 /* QEMU state */
583
584 static RunState current_run_state = RUN_STATE_PRECONFIG;
585
586 /* We use RUN_STATE__MAX but any invalid value will do */
587 static RunState vmstop_requested = RUN_STATE__MAX;
588 static QemuMutex vmstop_lock;
589
590 typedef struct {
591 RunState from;
592 RunState to;
593 } RunStateTransition;
594
595 static const RunStateTransition runstate_transitions_def[] = {
596 /* from -> to */
597 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
598 /* Early switch to inmigrate state to allow -incoming CLI option work
599 * as it used to. TODO: delay actual switching to inmigrate state to
600 * the point after machine is built and remove this hack.
601 */
602 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
603
604 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
605 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
607
608 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
609 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
610 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
611 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
612 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
613 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
615 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
616 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
617 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
618 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
619 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
620
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
622 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
624
625 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
626 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
627 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
628
629 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
630 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
632 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
633 { RUN_STATE_PAUSED, RUN_STATE_COLO},
634
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
636 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
638
639 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
640 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
641 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
642
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
648
649 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
650 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
651
652 { RUN_STATE_COLO, RUN_STATE_RUNNING },
653
654 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
655 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
656 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
657 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
658 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
660 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
661 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
662 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
663 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
664 { RUN_STATE_RUNNING, RUN_STATE_COLO},
665
666 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
667
668 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
669 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
670 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
671
672 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
673 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
674 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
675 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
677 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
678
679 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
680 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
681 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
682 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
683
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
685 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
686 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
687
688 { RUN_STATE__MAX, RUN_STATE__MAX },
689 };
690
691 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
692
693 bool runstate_check(RunState state)
694 {
695 return current_run_state == state;
696 }
697
698 bool runstate_store(char *str, size_t size)
699 {
700 const char *state = RunState_str(current_run_state);
701 size_t len = strlen(state) + 1;
702
703 if (len > size) {
704 return false;
705 }
706 memcpy(str, state, len);
707 return true;
708 }
709
710 static void runstate_init(void)
711 {
712 const RunStateTransition *p;
713
714 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
715 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
716 runstate_valid_transitions[p->from][p->to] = true;
717 }
718
719 qemu_mutex_init(&vmstop_lock);
720 }
721
722 /* This function will abort() on invalid state transitions */
723 void runstate_set(RunState new_state)
724 {
725 assert(new_state < RUN_STATE__MAX);
726
727 trace_runstate_set(current_run_state, RunState_str(current_run_state),
728 new_state, RunState_str(current_run_state));
729
730 if (current_run_state == new_state) {
731 return;
732 }
733
734 if (!runstate_valid_transitions[current_run_state][new_state]) {
735 error_report("invalid runstate transition: '%s' -> '%s'",
736 RunState_str(current_run_state),
737 RunState_str(new_state));
738 abort();
739 }
740
741 current_run_state = new_state;
742 }
743
744 int runstate_is_running(void)
745 {
746 return runstate_check(RUN_STATE_RUNNING);
747 }
748
749 bool runstate_needs_reset(void)
750 {
751 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
752 runstate_check(RUN_STATE_SHUTDOWN);
753 }
754
755 StatusInfo *qmp_query_status(Error **errp)
756 {
757 StatusInfo *info = g_malloc0(sizeof(*info));
758
759 info->running = runstate_is_running();
760 info->singlestep = singlestep;
761 info->status = current_run_state;
762
763 return info;
764 }
765
766 bool qemu_vmstop_requested(RunState *r)
767 {
768 qemu_mutex_lock(&vmstop_lock);
769 *r = vmstop_requested;
770 vmstop_requested = RUN_STATE__MAX;
771 qemu_mutex_unlock(&vmstop_lock);
772 return *r < RUN_STATE__MAX;
773 }
774
775 void qemu_system_vmstop_request_prepare(void)
776 {
777 qemu_mutex_lock(&vmstop_lock);
778 }
779
780 void qemu_system_vmstop_request(RunState state)
781 {
782 vmstop_requested = state;
783 qemu_mutex_unlock(&vmstop_lock);
784 qemu_notify_event();
785 }
786
787 /***********************************************************/
788 /* RTC reference time/date access */
789 static time_t qemu_ref_timedate(QEMUClockType clock)
790 {
791 time_t value = qemu_clock_get_ms(clock) / 1000;
792 switch (clock) {
793 case QEMU_CLOCK_REALTIME:
794 value -= rtc_realtime_clock_offset;
795 /* no break */
796 case QEMU_CLOCK_VIRTUAL:
797 value += rtc_ref_start_datetime;
798 break;
799 case QEMU_CLOCK_HOST:
800 if (rtc_base_type == RTC_BASE_DATETIME) {
801 value -= rtc_host_datetime_offset;
802 }
803 break;
804 default:
805 assert(0);
806 }
807 return value;
808 }
809
810 void qemu_get_timedate(struct tm *tm, int offset)
811 {
812 time_t ti = qemu_ref_timedate(rtc_clock);
813
814 ti += offset;
815
816 switch (rtc_base_type) {
817 case RTC_BASE_DATETIME:
818 case RTC_BASE_UTC:
819 gmtime_r(&ti, tm);
820 break;
821 case RTC_BASE_LOCALTIME:
822 localtime_r(&ti, tm);
823 break;
824 }
825 }
826
827 int qemu_timedate_diff(struct tm *tm)
828 {
829 time_t seconds;
830
831 switch (rtc_base_type) {
832 case RTC_BASE_DATETIME:
833 case RTC_BASE_UTC:
834 seconds = mktimegm(tm);
835 break;
836 case RTC_BASE_LOCALTIME:
837 {
838 struct tm tmp = *tm;
839 tmp.tm_isdst = -1; /* use timezone to figure it out */
840 seconds = mktime(&tmp);
841 break;
842 }
843 default:
844 abort();
845 }
846
847 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
848 }
849
850 static void configure_rtc_base_datetime(const char *startdate)
851 {
852 time_t rtc_start_datetime;
853 struct tm tm;
854
855 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
856 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
857 /* OK */
858 } else if (sscanf(startdate, "%d-%d-%d",
859 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
860 tm.tm_hour = 0;
861 tm.tm_min = 0;
862 tm.tm_sec = 0;
863 } else {
864 goto date_fail;
865 }
866 tm.tm_year -= 1900;
867 tm.tm_mon--;
868 rtc_start_datetime = mktimegm(&tm);
869 if (rtc_start_datetime == -1) {
870 date_fail:
871 error_report("invalid datetime format");
872 error_printf("valid formats: "
873 "'2006-06-17T16:01:21' or '2006-06-17'\n");
874 exit(1);
875 }
876 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
877 rtc_ref_start_datetime = rtc_start_datetime;
878 }
879
880 static void configure_rtc(QemuOpts *opts)
881 {
882 const char *value;
883
884 /* Set defaults */
885 rtc_clock = QEMU_CLOCK_HOST;
886 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
887 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
888
889 value = qemu_opt_get(opts, "base");
890 if (value) {
891 if (!strcmp(value, "utc")) {
892 rtc_base_type = RTC_BASE_UTC;
893 } else if (!strcmp(value, "localtime")) {
894 Error *blocker = NULL;
895 rtc_base_type = RTC_BASE_LOCALTIME;
896 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
897 "-rtc base=localtime");
898 replay_add_blocker(blocker);
899 } else {
900 rtc_base_type = RTC_BASE_DATETIME;
901 configure_rtc_base_datetime(value);
902 }
903 }
904 value = qemu_opt_get(opts, "clock");
905 if (value) {
906 if (!strcmp(value, "host")) {
907 rtc_clock = QEMU_CLOCK_HOST;
908 } else if (!strcmp(value, "rt")) {
909 rtc_clock = QEMU_CLOCK_REALTIME;
910 } else if (!strcmp(value, "vm")) {
911 rtc_clock = QEMU_CLOCK_VIRTUAL;
912 } else {
913 error_report("invalid option value '%s'", value);
914 exit(1);
915 }
916 }
917 value = qemu_opt_get(opts, "driftfix");
918 if (value) {
919 if (!strcmp(value, "slew")) {
920 static GlobalProperty slew_lost_ticks = {
921 .driver = "mc146818rtc",
922 .property = "lost_tick_policy",
923 .value = "slew",
924 };
925
926 qdev_prop_register_global(&slew_lost_ticks);
927 } else if (!strcmp(value, "none")) {
928 /* discard is default */
929 } else {
930 error_report("invalid option value '%s'", value);
931 exit(1);
932 }
933 }
934 }
935
936 /***********************************************************/
937 /* Bluetooth support */
938 static int nb_hcis;
939 static int cur_hci;
940 static struct HCIInfo *hci_table[MAX_NICS];
941
942 struct HCIInfo *qemu_next_hci(void)
943 {
944 if (cur_hci == nb_hcis)
945 return &null_hci;
946
947 return hci_table[cur_hci++];
948 }
949
950 static int bt_hci_parse(const char *str)
951 {
952 struct HCIInfo *hci;
953 bdaddr_t bdaddr;
954
955 if (nb_hcis >= MAX_NICS) {
956 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
957 return -1;
958 }
959
960 hci = hci_init(str);
961 if (!hci)
962 return -1;
963
964 bdaddr.b[0] = 0x52;
965 bdaddr.b[1] = 0x54;
966 bdaddr.b[2] = 0x00;
967 bdaddr.b[3] = 0x12;
968 bdaddr.b[4] = 0x34;
969 bdaddr.b[5] = 0x56 + nb_hcis;
970 hci->bdaddr_set(hci, bdaddr.b);
971
972 hci_table[nb_hcis++] = hci;
973
974 return 0;
975 }
976
977 static void bt_vhci_add(int vlan_id)
978 {
979 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
980
981 if (!vlan->slave)
982 warn_report("adding a VHCI to an empty scatternet %i",
983 vlan_id);
984
985 bt_vhci_init(bt_new_hci(vlan));
986 }
987
988 static struct bt_device_s *bt_device_add(const char *opt)
989 {
990 struct bt_scatternet_s *vlan;
991 int vlan_id = 0;
992 char *endp = strstr(opt, ",vlan=");
993 int len = (endp ? endp - opt : strlen(opt)) + 1;
994 char devname[10];
995
996 pstrcpy(devname, MIN(sizeof(devname), len), opt);
997
998 if (endp) {
999 vlan_id = strtol(endp + 6, &endp, 0);
1000 if (*endp) {
1001 error_report("unrecognised bluetooth vlan Id");
1002 return 0;
1003 }
1004 }
1005
1006 vlan = qemu_find_bt_vlan(vlan_id);
1007
1008 if (!vlan->slave)
1009 warn_report("adding a slave device to an empty scatternet %i",
1010 vlan_id);
1011
1012 if (!strcmp(devname, "keyboard"))
1013 return bt_keyboard_init(vlan);
1014
1015 error_report("unsupported bluetooth device '%s'", devname);
1016 return 0;
1017 }
1018
1019 static int bt_parse(const char *opt)
1020 {
1021 const char *endp, *p;
1022 int vlan;
1023
1024 if (strstart(opt, "hci", &endp)) {
1025 if (!*endp || *endp == ',') {
1026 if (*endp)
1027 if (!strstart(endp, ",vlan=", 0))
1028 opt = endp + 1;
1029
1030 return bt_hci_parse(opt);
1031 }
1032 } else if (strstart(opt, "vhci", &endp)) {
1033 if (!*endp || *endp == ',') {
1034 if (*endp) {
1035 if (strstart(endp, ",vlan=", &p)) {
1036 vlan = strtol(p, (char **) &endp, 0);
1037 if (*endp) {
1038 error_report("bad scatternet '%s'", p);
1039 return 1;
1040 }
1041 } else {
1042 error_report("bad parameter '%s'", endp + 1);
1043 return 1;
1044 }
1045 } else
1046 vlan = 0;
1047
1048 bt_vhci_add(vlan);
1049 return 0;
1050 }
1051 } else if (strstart(opt, "device:", &endp))
1052 return !bt_device_add(endp);
1053
1054 error_report("bad bluetooth parameter '%s'", opt);
1055 return 1;
1056 }
1057
1058 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1059 {
1060 const char *proc_name;
1061
1062 if (qemu_opt_get(opts, "debug-threads")) {
1063 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1064 }
1065 qemu_name = qemu_opt_get(opts, "guest");
1066
1067 proc_name = qemu_opt_get(opts, "process");
1068 if (proc_name) {
1069 os_set_proc_name(proc_name);
1070 }
1071
1072 return 0;
1073 }
1074
1075 bool defaults_enabled(void)
1076 {
1077 return has_defaults;
1078 }
1079
1080 #ifndef _WIN32
1081 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1082 {
1083 int fd, dupfd, flags;
1084 int64_t fdset_id;
1085 const char *fd_opaque = NULL;
1086 AddfdInfo *fdinfo;
1087
1088 fd = qemu_opt_get_number(opts, "fd", -1);
1089 fdset_id = qemu_opt_get_number(opts, "set", -1);
1090 fd_opaque = qemu_opt_get(opts, "opaque");
1091
1092 if (fd < 0) {
1093 error_setg(errp, "fd option is required and must be non-negative");
1094 return -1;
1095 }
1096
1097 if (fd <= STDERR_FILENO) {
1098 error_setg(errp, "fd cannot be a standard I/O stream");
1099 return -1;
1100 }
1101
1102 /*
1103 * All fds inherited across exec() necessarily have FD_CLOEXEC
1104 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1105 */
1106 flags = fcntl(fd, F_GETFD);
1107 if (flags == -1 || (flags & FD_CLOEXEC)) {
1108 error_setg(errp, "fd is not valid or already in use");
1109 return -1;
1110 }
1111
1112 if (fdset_id < 0) {
1113 error_setg(errp, "set option is required and must be non-negative");
1114 return -1;
1115 }
1116
1117 #ifdef F_DUPFD_CLOEXEC
1118 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1119 #else
1120 dupfd = dup(fd);
1121 if (dupfd != -1) {
1122 qemu_set_cloexec(dupfd);
1123 }
1124 #endif
1125 if (dupfd == -1) {
1126 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1127 return -1;
1128 }
1129
1130 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1131 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1132 &error_abort);
1133 g_free(fdinfo);
1134
1135 return 0;
1136 }
1137
1138 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1139 {
1140 int fd;
1141
1142 fd = qemu_opt_get_number(opts, "fd", -1);
1143 close(fd);
1144
1145 return 0;
1146 }
1147 #endif
1148
1149 /***********************************************************/
1150 /* QEMU Block devices */
1151
1152 #define HD_OPTS "media=disk"
1153 #define CDROM_OPTS "media=cdrom"
1154 #define FD_OPTS ""
1155 #define PFLASH_OPTS ""
1156 #define MTD_OPTS ""
1157 #define SD_OPTS ""
1158
1159 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1160 {
1161 BlockInterfaceType *block_default_type = opaque;
1162
1163 return drive_new(opts, *block_default_type, errp) == NULL;
1164 }
1165
1166 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1167 {
1168 if (qemu_opt_get(opts, "snapshot") == NULL) {
1169 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1170 }
1171 return 0;
1172 }
1173
1174 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1175 int index, const char *optstr)
1176 {
1177 QemuOpts *opts;
1178 DriveInfo *dinfo;
1179
1180 if (!enable || drive_get_by_index(type, index)) {
1181 return;
1182 }
1183
1184 opts = drive_add(type, index, NULL, optstr);
1185 if (snapshot) {
1186 drive_enable_snapshot(NULL, opts, NULL);
1187 }
1188
1189 dinfo = drive_new(opts, type, &error_abort);
1190 dinfo->is_default = true;
1191
1192 }
1193
1194 typedef struct BlockdevOptionsQueueEntry {
1195 BlockdevOptions *bdo;
1196 Location loc;
1197 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1198 } BlockdevOptionsQueueEntry;
1199
1200 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1201
1202 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1203 MachineClass *machine_class, int snapshot)
1204 {
1205 /*
1206 * If the currently selected machine wishes to override the
1207 * units-per-bus property of its default HBA interface type, do so
1208 * now.
1209 */
1210 if (machine_class->units_per_default_bus) {
1211 override_max_devs(machine_class->block_default_type,
1212 machine_class->units_per_default_bus);
1213 }
1214
1215 /* open the virtual block devices */
1216 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1217 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1218
1219 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1220 loc_push_restore(&bdo->loc);
1221 qmp_blockdev_add(bdo->bdo, &error_fatal);
1222 loc_pop(&bdo->loc);
1223 qapi_free_BlockdevOptions(bdo->bdo);
1224 g_free(bdo);
1225 }
1226 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1227 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1228 NULL, NULL);
1229 }
1230 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1231 &machine_class->block_default_type, &error_fatal)) {
1232 /* We printed help */
1233 exit(0);
1234 }
1235
1236 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1237 CDROM_OPTS);
1238 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1239 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1240
1241 }
1242
1243 static QemuOptsList qemu_smp_opts = {
1244 .name = "smp-opts",
1245 .implied_opt_name = "cpus",
1246 .merge_lists = true,
1247 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1248 .desc = {
1249 {
1250 .name = "cpus",
1251 .type = QEMU_OPT_NUMBER,
1252 }, {
1253 .name = "sockets",
1254 .type = QEMU_OPT_NUMBER,
1255 }, {
1256 .name = "cores",
1257 .type = QEMU_OPT_NUMBER,
1258 }, {
1259 .name = "threads",
1260 .type = QEMU_OPT_NUMBER,
1261 }, {
1262 .name = "maxcpus",
1263 .type = QEMU_OPT_NUMBER,
1264 },
1265 { /*End of list */ }
1266 },
1267 };
1268
1269 static void smp_parse(QemuOpts *opts)
1270 {
1271 if (opts) {
1272 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1273 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1274 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1275 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1276
1277 /* compute missing values, prefer sockets over cores over threads */
1278 if (cpus == 0 || sockets == 0) {
1279 cores = cores > 0 ? cores : 1;
1280 threads = threads > 0 ? threads : 1;
1281 if (cpus == 0) {
1282 sockets = sockets > 0 ? sockets : 1;
1283 cpus = cores * threads * sockets;
1284 } else {
1285 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1286 sockets = max_cpus / (cores * threads);
1287 }
1288 } else if (cores == 0) {
1289 threads = threads > 0 ? threads : 1;
1290 cores = cpus / (sockets * threads);
1291 cores = cores > 0 ? cores : 1;
1292 } else if (threads == 0) {
1293 threads = cpus / (cores * sockets);
1294 threads = threads > 0 ? threads : 1;
1295 } else if (sockets * cores * threads < cpus) {
1296 error_report("cpu topology: "
1297 "sockets (%u) * cores (%u) * threads (%u) < "
1298 "smp_cpus (%u)",
1299 sockets, cores, threads, cpus);
1300 exit(1);
1301 }
1302
1303 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1304
1305 if (max_cpus < cpus) {
1306 error_report("maxcpus must be equal to or greater than smp");
1307 exit(1);
1308 }
1309
1310 if (sockets * cores * threads > max_cpus) {
1311 error_report("cpu topology: "
1312 "sockets (%u) * cores (%u) * threads (%u) > "
1313 "maxcpus (%u)",
1314 sockets, cores, threads, max_cpus);
1315 exit(1);
1316 }
1317
1318 if (sockets * cores * threads != max_cpus) {
1319 warn_report("Invalid CPU topology deprecated: "
1320 "sockets (%u) * cores (%u) * threads (%u) "
1321 "!= maxcpus (%u)",
1322 sockets, cores, threads, max_cpus);
1323 }
1324
1325 smp_cpus = cpus;
1326 smp_cores = cores;
1327 smp_threads = threads;
1328 }
1329
1330 if (smp_cpus > 1) {
1331 Error *blocker = NULL;
1332 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1333 replay_add_blocker(blocker);
1334 }
1335 }
1336
1337 static void realtime_init(void)
1338 {
1339 if (enable_mlock) {
1340 if (os_mlock() < 0) {
1341 error_report("locking memory failed");
1342 exit(1);
1343 }
1344 }
1345 }
1346
1347
1348 static void configure_msg(QemuOpts *opts)
1349 {
1350 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1351 }
1352
1353 /***********************************************************/
1354 /* Semihosting */
1355
1356 typedef struct SemihostingConfig {
1357 bool enabled;
1358 SemihostingTarget target;
1359 const char **argv;
1360 int argc;
1361 const char *cmdline; /* concatenated argv */
1362 } SemihostingConfig;
1363
1364 static SemihostingConfig semihosting;
1365
1366 bool semihosting_enabled(void)
1367 {
1368 return semihosting.enabled;
1369 }
1370
1371 SemihostingTarget semihosting_get_target(void)
1372 {
1373 return semihosting.target;
1374 }
1375
1376 const char *semihosting_get_arg(int i)
1377 {
1378 if (i >= semihosting.argc) {
1379 return NULL;
1380 }
1381 return semihosting.argv[i];
1382 }
1383
1384 int semihosting_get_argc(void)
1385 {
1386 return semihosting.argc;
1387 }
1388
1389 const char *semihosting_get_cmdline(void)
1390 {
1391 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1392 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1393 }
1394 return semihosting.cmdline;
1395 }
1396
1397 static int add_semihosting_arg(void *opaque,
1398 const char *name, const char *val,
1399 Error **errp)
1400 {
1401 SemihostingConfig *s = opaque;
1402 if (strcmp(name, "arg") == 0) {
1403 s->argc++;
1404 /* one extra element as g_strjoinv() expects NULL-terminated array */
1405 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1406 s->argv[s->argc - 1] = val;
1407 s->argv[s->argc] = NULL;
1408 }
1409 return 0;
1410 }
1411
1412 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1413 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1414 {
1415 char *cmd_token;
1416
1417 /* argv[0] */
1418 add_semihosting_arg(&semihosting, "arg", file, NULL);
1419
1420 /* split -append and initialize argv[1..n] */
1421 cmd_token = strtok(g_strdup(cmd), " ");
1422 while (cmd_token) {
1423 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1424 cmd_token = strtok(NULL, " ");
1425 }
1426 }
1427
1428 /* Now we still need this for compatibility with XEN. */
1429 bool has_igd_gfx_passthru;
1430 static void igd_gfx_passthru(void)
1431 {
1432 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1433 }
1434
1435 /***********************************************************/
1436 /* USB devices */
1437
1438 static int usb_device_add(const char *devname)
1439 {
1440 USBDevice *dev = NULL;
1441
1442 if (!machine_usb(current_machine)) {
1443 return -1;
1444 }
1445
1446 dev = usbdevice_create(devname);
1447 if (!dev)
1448 return -1;
1449
1450 return 0;
1451 }
1452
1453 static int usb_parse(const char *cmdline)
1454 {
1455 int r;
1456 r = usb_device_add(cmdline);
1457 if (r < 0) {
1458 error_report("could not add USB device '%s'", cmdline);
1459 }
1460 return r;
1461 }
1462
1463 /***********************************************************/
1464 /* machine registration */
1465
1466 MachineState *current_machine;
1467
1468 static MachineClass *find_machine(const char *name)
1469 {
1470 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1471 MachineClass *mc = NULL;
1472
1473 for (el = machines; el; el = el->next) {
1474 MachineClass *temp = el->data;
1475
1476 if (!strcmp(temp->name, name)) {
1477 mc = temp;
1478 break;
1479 }
1480 if (temp->alias &&
1481 !strcmp(temp->alias, name)) {
1482 mc = temp;
1483 break;
1484 }
1485 }
1486
1487 g_slist_free(machines);
1488 return mc;
1489 }
1490
1491 MachineClass *find_default_machine(void)
1492 {
1493 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1494 MachineClass *mc = NULL;
1495
1496 for (el = machines; el; el = el->next) {
1497 MachineClass *temp = el->data;
1498
1499 if (temp->is_default) {
1500 mc = temp;
1501 break;
1502 }
1503 }
1504
1505 g_slist_free(machines);
1506 return mc;
1507 }
1508
1509 MachineInfoList *qmp_query_machines(Error **errp)
1510 {
1511 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1512 MachineInfoList *mach_list = NULL;
1513
1514 for (el = machines; el; el = el->next) {
1515 MachineClass *mc = el->data;
1516 MachineInfoList *entry;
1517 MachineInfo *info;
1518
1519 info = g_malloc0(sizeof(*info));
1520 if (mc->is_default) {
1521 info->has_is_default = true;
1522 info->is_default = true;
1523 }
1524
1525 if (mc->alias) {
1526 info->has_alias = true;
1527 info->alias = g_strdup(mc->alias);
1528 }
1529
1530 info->name = g_strdup(mc->name);
1531 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1532 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1533
1534 entry = g_malloc0(sizeof(*entry));
1535 entry->value = info;
1536 entry->next = mach_list;
1537 mach_list = entry;
1538 }
1539
1540 g_slist_free(machines);
1541 return mach_list;
1542 }
1543
1544 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1545 {
1546 ObjectProperty *prop;
1547 ObjectPropertyIterator iter;
1548
1549 if (!qemu_opt_has_help_opt(opts)) {
1550 return 0;
1551 }
1552
1553 object_property_iter_init(&iter, OBJECT(machine));
1554 while ((prop = object_property_iter_next(&iter))) {
1555 if (!prop->set) {
1556 continue;
1557 }
1558
1559 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1560 prop->name, prop->type);
1561 if (prop->description) {
1562 error_printf(" (%s)\n", prop->description);
1563 } else {
1564 error_printf("\n");
1565 }
1566 }
1567
1568 return 1;
1569 }
1570
1571 struct vm_change_state_entry {
1572 VMChangeStateHandler *cb;
1573 void *opaque;
1574 QLIST_ENTRY (vm_change_state_entry) entries;
1575 };
1576
1577 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1578
1579 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1580 void *opaque)
1581 {
1582 VMChangeStateEntry *e;
1583
1584 e = g_malloc0(sizeof (*e));
1585
1586 e->cb = cb;
1587 e->opaque = opaque;
1588 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1589 return e;
1590 }
1591
1592 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1593 {
1594 QLIST_REMOVE (e, entries);
1595 g_free (e);
1596 }
1597
1598 void vm_state_notify(int running, RunState state)
1599 {
1600 VMChangeStateEntry *e, *next;
1601
1602 trace_vm_state_notify(running, state, RunState_str(state));
1603
1604 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1605 e->cb(e->opaque, running, state);
1606 }
1607 }
1608
1609 static ShutdownCause reset_requested;
1610 static ShutdownCause shutdown_requested;
1611 static int shutdown_signal;
1612 static pid_t shutdown_pid;
1613 static int powerdown_requested;
1614 static int debug_requested;
1615 static int suspend_requested;
1616 static bool preconfig_exit_requested = true;
1617 static WakeupReason wakeup_reason;
1618 static NotifierList powerdown_notifiers =
1619 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1620 static NotifierList suspend_notifiers =
1621 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1622 static NotifierList wakeup_notifiers =
1623 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1624 static NotifierList shutdown_notifiers =
1625 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1626 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1627
1628 ShutdownCause qemu_shutdown_requested_get(void)
1629 {
1630 return shutdown_requested;
1631 }
1632
1633 ShutdownCause qemu_reset_requested_get(void)
1634 {
1635 return reset_requested;
1636 }
1637
1638 static int qemu_shutdown_requested(void)
1639 {
1640 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1641 }
1642
1643 static void qemu_kill_report(void)
1644 {
1645 if (!qtest_driver() && shutdown_signal) {
1646 if (shutdown_pid == 0) {
1647 /* This happens for eg ^C at the terminal, so it's worth
1648 * avoiding printing an odd message in that case.
1649 */
1650 error_report("terminating on signal %d", shutdown_signal);
1651 } else {
1652 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1653
1654 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1655 shutdown_signal, shutdown_pid,
1656 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1657 g_free(shutdown_cmd);
1658 }
1659 shutdown_signal = 0;
1660 }
1661 }
1662
1663 static ShutdownCause qemu_reset_requested(void)
1664 {
1665 ShutdownCause r = reset_requested;
1666
1667 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1668 reset_requested = SHUTDOWN_CAUSE_NONE;
1669 return r;
1670 }
1671 return SHUTDOWN_CAUSE_NONE;
1672 }
1673
1674 static int qemu_suspend_requested(void)
1675 {
1676 int r = suspend_requested;
1677 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1678 suspend_requested = 0;
1679 return r;
1680 }
1681 return false;
1682 }
1683
1684 static WakeupReason qemu_wakeup_requested(void)
1685 {
1686 return wakeup_reason;
1687 }
1688
1689 static int qemu_powerdown_requested(void)
1690 {
1691 int r = powerdown_requested;
1692 powerdown_requested = 0;
1693 return r;
1694 }
1695
1696 static int qemu_debug_requested(void)
1697 {
1698 int r = debug_requested;
1699 debug_requested = 0;
1700 return r;
1701 }
1702
1703 void qemu_exit_preconfig_request(void)
1704 {
1705 preconfig_exit_requested = true;
1706 }
1707
1708 /*
1709 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1710 */
1711 void qemu_system_reset(ShutdownCause reason)
1712 {
1713 MachineClass *mc;
1714
1715 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1716
1717 cpu_synchronize_all_states();
1718
1719 if (mc && mc->reset) {
1720 mc->reset();
1721 } else {
1722 qemu_devices_reset();
1723 }
1724 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1725 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1726 }
1727 cpu_synchronize_all_post_reset();
1728 }
1729
1730 void qemu_system_guest_panicked(GuestPanicInformation *info)
1731 {
1732 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1733
1734 if (current_cpu) {
1735 current_cpu->crash_occurred = true;
1736 }
1737 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1738 !!info, info);
1739 vm_stop(RUN_STATE_GUEST_PANICKED);
1740 if (!no_shutdown) {
1741 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1742 !!info, info);
1743 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1744 }
1745
1746 if (info) {
1747 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1748 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1749 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1750 info->u.hyper_v.arg1,
1751 info->u.hyper_v.arg2,
1752 info->u.hyper_v.arg3,
1753 info->u.hyper_v.arg4,
1754 info->u.hyper_v.arg5);
1755 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1756 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1757 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1758 info->u.s390.core,
1759 S390CrashReason_str(info->u.s390.reason),
1760 info->u.s390.psw_mask,
1761 info->u.s390.psw_addr);
1762 }
1763 qapi_free_GuestPanicInformation(info);
1764 }
1765 }
1766
1767 void qemu_system_reset_request(ShutdownCause reason)
1768 {
1769 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1770 shutdown_requested = reason;
1771 } else {
1772 reset_requested = reason;
1773 }
1774 cpu_stop_current();
1775 qemu_notify_event();
1776 }
1777
1778 static void qemu_system_suspend(void)
1779 {
1780 pause_all_vcpus();
1781 notifier_list_notify(&suspend_notifiers, NULL);
1782 runstate_set(RUN_STATE_SUSPENDED);
1783 qapi_event_send_suspend();
1784 }
1785
1786 void qemu_system_suspend_request(void)
1787 {
1788 if (runstate_check(RUN_STATE_SUSPENDED)) {
1789 return;
1790 }
1791 suspend_requested = 1;
1792 cpu_stop_current();
1793 qemu_notify_event();
1794 }
1795
1796 void qemu_register_suspend_notifier(Notifier *notifier)
1797 {
1798 notifier_list_add(&suspend_notifiers, notifier);
1799 }
1800
1801 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1802 {
1803 trace_system_wakeup_request(reason);
1804
1805 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1806 error_setg(errp,
1807 "Unable to wake up: guest is not in suspended state");
1808 return;
1809 }
1810 if (!(wakeup_reason_mask & (1 << reason))) {
1811 return;
1812 }
1813 runstate_set(RUN_STATE_RUNNING);
1814 wakeup_reason = reason;
1815 qemu_notify_event();
1816 }
1817
1818 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1819 {
1820 if (enabled) {
1821 wakeup_reason_mask |= (1 << reason);
1822 } else {
1823 wakeup_reason_mask &= ~(1 << reason);
1824 }
1825 }
1826
1827 void qemu_register_wakeup_notifier(Notifier *notifier)
1828 {
1829 notifier_list_add(&wakeup_notifiers, notifier);
1830 }
1831
1832 void qemu_register_wakeup_support(void)
1833 {
1834 wakeup_suspend_enabled = true;
1835 }
1836
1837 bool qemu_wakeup_suspend_enabled(void)
1838 {
1839 return wakeup_suspend_enabled;
1840 }
1841
1842 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1843 {
1844 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1845 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1846
1847 return params;
1848 }
1849
1850 void qemu_system_killed(int signal, pid_t pid)
1851 {
1852 shutdown_signal = signal;
1853 shutdown_pid = pid;
1854 no_shutdown = 0;
1855
1856 /* Cannot call qemu_system_shutdown_request directly because
1857 * we are in a signal handler.
1858 */
1859 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1860 qemu_notify_event();
1861 }
1862
1863 void qemu_system_shutdown_request(ShutdownCause reason)
1864 {
1865 trace_qemu_system_shutdown_request(reason);
1866 replay_shutdown_request(reason);
1867 shutdown_requested = reason;
1868 qemu_notify_event();
1869 }
1870
1871 static void qemu_system_powerdown(void)
1872 {
1873 qapi_event_send_powerdown();
1874 notifier_list_notify(&powerdown_notifiers, NULL);
1875 }
1876
1877 static void qemu_system_shutdown(ShutdownCause cause)
1878 {
1879 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1880 notifier_list_notify(&shutdown_notifiers, &cause);
1881 }
1882
1883 void qemu_system_powerdown_request(void)
1884 {
1885 trace_qemu_system_powerdown_request();
1886 powerdown_requested = 1;
1887 qemu_notify_event();
1888 }
1889
1890 void qemu_register_powerdown_notifier(Notifier *notifier)
1891 {
1892 notifier_list_add(&powerdown_notifiers, notifier);
1893 }
1894
1895 void qemu_register_shutdown_notifier(Notifier *notifier)
1896 {
1897 notifier_list_add(&shutdown_notifiers, notifier);
1898 }
1899
1900 void qemu_system_debug_request(void)
1901 {
1902 debug_requested = 1;
1903 qemu_notify_event();
1904 }
1905
1906 static bool main_loop_should_exit(void)
1907 {
1908 RunState r;
1909 ShutdownCause request;
1910
1911 if (preconfig_exit_requested) {
1912 if (runstate_check(RUN_STATE_PRECONFIG)) {
1913 runstate_set(RUN_STATE_PRELAUNCH);
1914 }
1915 preconfig_exit_requested = false;
1916 return true;
1917 }
1918 if (qemu_debug_requested()) {
1919 vm_stop(RUN_STATE_DEBUG);
1920 }
1921 if (qemu_suspend_requested()) {
1922 qemu_system_suspend();
1923 }
1924 request = qemu_shutdown_requested();
1925 if (request) {
1926 qemu_kill_report();
1927 qemu_system_shutdown(request);
1928 if (no_shutdown) {
1929 vm_stop(RUN_STATE_SHUTDOWN);
1930 } else {
1931 return true;
1932 }
1933 }
1934 request = qemu_reset_requested();
1935 if (request) {
1936 pause_all_vcpus();
1937 qemu_system_reset(request);
1938 resume_all_vcpus();
1939 if (!runstate_check(RUN_STATE_RUNNING) &&
1940 !runstate_check(RUN_STATE_INMIGRATE)) {
1941 runstate_set(RUN_STATE_PRELAUNCH);
1942 }
1943 }
1944 if (qemu_wakeup_requested()) {
1945 pause_all_vcpus();
1946 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1947 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1948 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1949 resume_all_vcpus();
1950 qapi_event_send_wakeup();
1951 }
1952 if (qemu_powerdown_requested()) {
1953 qemu_system_powerdown();
1954 }
1955 if (qemu_vmstop_requested(&r)) {
1956 vm_stop(r);
1957 }
1958 return false;
1959 }
1960
1961 static void main_loop(void)
1962 {
1963 #ifdef CONFIG_PROFILER
1964 int64_t ti;
1965 #endif
1966 while (!main_loop_should_exit()) {
1967 #ifdef CONFIG_PROFILER
1968 ti = profile_getclock();
1969 #endif
1970 main_loop_wait(false);
1971 #ifdef CONFIG_PROFILER
1972 dev_time += profile_getclock() - ti;
1973 #endif
1974 }
1975 }
1976
1977 static void version(void)
1978 {
1979 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1980 QEMU_COPYRIGHT "\n");
1981 }
1982
1983 static void help(int exitcode)
1984 {
1985 version();
1986 printf("usage: %s [options] [disk_image]\n\n"
1987 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1988 error_get_progname());
1989
1990 #define QEMU_OPTIONS_GENERATE_HELP
1991 #include "qemu-options-wrapper.h"
1992
1993 printf("\nDuring emulation, the following keys are useful:\n"
1994 "ctrl-alt-f toggle full screen\n"
1995 "ctrl-alt-n switch to virtual console 'n'\n"
1996 "ctrl-alt toggle mouse and keyboard grab\n"
1997 "\n"
1998 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1999 "\n"
2000 QEMU_HELP_BOTTOM "\n");
2001
2002 exit(exitcode);
2003 }
2004
2005 #define HAS_ARG 0x0001
2006
2007 typedef struct QEMUOption {
2008 const char *name;
2009 int flags;
2010 int index;
2011 uint32_t arch_mask;
2012 } QEMUOption;
2013
2014 static const QEMUOption qemu_options[] = {
2015 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2016 #define QEMU_OPTIONS_GENERATE_OPTIONS
2017 #include "qemu-options-wrapper.h"
2018 { NULL },
2019 };
2020
2021 typedef struct VGAInterfaceInfo {
2022 const char *opt_name; /* option name */
2023 const char *name; /* human-readable name */
2024 /* Class names indicating that support is available.
2025 * If no class is specified, the interface is always available */
2026 const char *class_names[2];
2027 } VGAInterfaceInfo;
2028
2029 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2030 [VGA_NONE] = {
2031 .opt_name = "none",
2032 },
2033 [VGA_STD] = {
2034 .opt_name = "std",
2035 .name = "standard VGA",
2036 .class_names = { "VGA", "isa-vga" },
2037 },
2038 [VGA_CIRRUS] = {
2039 .opt_name = "cirrus",
2040 .name = "Cirrus VGA",
2041 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2042 },
2043 [VGA_VMWARE] = {
2044 .opt_name = "vmware",
2045 .name = "VMWare SVGA",
2046 .class_names = { "vmware-svga" },
2047 },
2048 [VGA_VIRTIO] = {
2049 .opt_name = "virtio",
2050 .name = "Virtio VGA",
2051 .class_names = { "virtio-vga" },
2052 },
2053 [VGA_QXL] = {
2054 .opt_name = "qxl",
2055 .name = "QXL VGA",
2056 .class_names = { "qxl-vga" },
2057 },
2058 [VGA_TCX] = {
2059 .opt_name = "tcx",
2060 .name = "TCX framebuffer",
2061 .class_names = { "SUNW,tcx" },
2062 },
2063 [VGA_CG3] = {
2064 .opt_name = "cg3",
2065 .name = "CG3 framebuffer",
2066 .class_names = { "cgthree" },
2067 },
2068 [VGA_XENFB] = {
2069 .opt_name = "xenfb",
2070 },
2071 };
2072
2073 static bool vga_interface_available(VGAInterfaceType t)
2074 {
2075 VGAInterfaceInfo *ti = &vga_interfaces[t];
2076
2077 assert(t < VGA_TYPE_MAX);
2078 return !ti->class_names[0] ||
2079 object_class_by_name(ti->class_names[0]) ||
2080 object_class_by_name(ti->class_names[1]);
2081 }
2082
2083 static void select_vgahw(const char *p)
2084 {
2085 const char *opts;
2086 int t;
2087
2088 assert(vga_interface_type == VGA_NONE);
2089 for (t = 0; t < VGA_TYPE_MAX; t++) {
2090 VGAInterfaceInfo *ti = &vga_interfaces[t];
2091 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2092 if (!vga_interface_available(t)) {
2093 error_report("%s not available", ti->name);
2094 exit(1);
2095 }
2096 vga_interface_type = t;
2097 break;
2098 }
2099 }
2100 if (t == VGA_TYPE_MAX) {
2101 invalid_vga:
2102 error_report("unknown vga type: %s", p);
2103 exit(1);
2104 }
2105 while (*opts) {
2106 const char *nextopt;
2107
2108 if (strstart(opts, ",retrace=", &nextopt)) {
2109 opts = nextopt;
2110 if (strstart(opts, "dumb", &nextopt))
2111 vga_retrace_method = VGA_RETRACE_DUMB;
2112 else if (strstart(opts, "precise", &nextopt))
2113 vga_retrace_method = VGA_RETRACE_PRECISE;
2114 else goto invalid_vga;
2115 } else goto invalid_vga;
2116 opts = nextopt;
2117 }
2118 }
2119
2120 static void parse_display_qapi(const char *optarg)
2121 {
2122 DisplayOptions *opts;
2123 Visitor *v;
2124
2125 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2126
2127 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2128 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2129
2130 qapi_free_DisplayOptions(opts);
2131 visit_free(v);
2132 }
2133
2134 DisplayOptions *qmp_query_display_options(Error **errp)
2135 {
2136 return QAPI_CLONE(DisplayOptions, &dpy);
2137 }
2138
2139 static void parse_display(const char *p)
2140 {
2141 const char *opts;
2142
2143 if (strstart(p, "sdl", &opts)) {
2144 /*
2145 * sdl DisplayType needs hand-crafted parser instead of
2146 * parse_display_qapi() due to some options not in
2147 * DisplayOptions, specifically:
2148 * - frame
2149 * Already deprecated.
2150 * - ctrl_grab + alt_grab
2151 * Not clear yet what happens to them long-term. Should
2152 * replaced by something better or deprecated and dropped.
2153 */
2154 dpy.type = DISPLAY_TYPE_SDL;
2155 while (*opts) {
2156 const char *nextopt;
2157
2158 if (strstart(opts, ",alt_grab=", &nextopt)) {
2159 opts = nextopt;
2160 if (strstart(opts, "on", &nextopt)) {
2161 alt_grab = 1;
2162 } else if (strstart(opts, "off", &nextopt)) {
2163 alt_grab = 0;
2164 } else {
2165 goto invalid_sdl_args;
2166 }
2167 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2168 opts = nextopt;
2169 if (strstart(opts, "on", &nextopt)) {
2170 ctrl_grab = 1;
2171 } else if (strstart(opts, "off", &nextopt)) {
2172 ctrl_grab = 0;
2173 } else {
2174 goto invalid_sdl_args;
2175 }
2176 } else if (strstart(opts, ",window_close=", &nextopt)) {
2177 opts = nextopt;
2178 dpy.has_window_close = true;
2179 if (strstart(opts, "on", &nextopt)) {
2180 dpy.window_close = true;
2181 } else if (strstart(opts, "off", &nextopt)) {
2182 dpy.window_close = false;
2183 } else {
2184 goto invalid_sdl_args;
2185 }
2186 } else if (strstart(opts, ",gl=", &nextopt)) {
2187 opts = nextopt;
2188 dpy.has_gl = true;
2189 if (strstart(opts, "on", &nextopt)) {
2190 dpy.gl = DISPLAYGL_MODE_ON;
2191 } else if (strstart(opts, "core", &nextopt)) {
2192 dpy.gl = DISPLAYGL_MODE_CORE;
2193 } else if (strstart(opts, "es", &nextopt)) {
2194 dpy.gl = DISPLAYGL_MODE_ES;
2195 } else if (strstart(opts, "off", &nextopt)) {
2196 dpy.gl = DISPLAYGL_MODE_OFF;
2197 } else {
2198 goto invalid_sdl_args;
2199 }
2200 } else {
2201 invalid_sdl_args:
2202 error_report("invalid SDL option string");
2203 exit(1);
2204 }
2205 opts = nextopt;
2206 }
2207 } else if (strstart(p, "vnc", &opts)) {
2208 /*
2209 * vnc isn't a (local) DisplayType but a protocol for remote
2210 * display access.
2211 */
2212 if (*opts == '=') {
2213 vnc_parse(opts + 1, &error_fatal);
2214 } else {
2215 error_report("VNC requires a display argument vnc=<display>");
2216 exit(1);
2217 }
2218 } else {
2219 parse_display_qapi(p);
2220 }
2221 }
2222
2223 char *qemu_find_file(int type, const char *name)
2224 {
2225 int i;
2226 const char *subdir;
2227 char *buf;
2228
2229 /* Try the name as a straight path first */
2230 if (access(name, R_OK) == 0) {
2231 trace_load_file(name, name);
2232 return g_strdup(name);
2233 }
2234
2235 switch (type) {
2236 case QEMU_FILE_TYPE_BIOS:
2237 subdir = "";
2238 break;
2239 case QEMU_FILE_TYPE_KEYMAP:
2240 subdir = "keymaps/";
2241 break;
2242 default:
2243 abort();
2244 }
2245
2246 for (i = 0; i < data_dir_idx; i++) {
2247 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2248 if (access(buf, R_OK) == 0) {
2249 trace_load_file(name, buf);
2250 return buf;
2251 }
2252 g_free(buf);
2253 }
2254 return NULL;
2255 }
2256
2257 static void qemu_add_data_dir(const char *path)
2258 {
2259 int i;
2260
2261 if (path == NULL) {
2262 return;
2263 }
2264 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2265 return;
2266 }
2267 for (i = 0; i < data_dir_idx; i++) {
2268 if (strcmp(data_dir[i], path) == 0) {
2269 return; /* duplicate */
2270 }
2271 }
2272 data_dir[data_dir_idx++] = g_strdup(path);
2273 }
2274
2275 static inline bool nonempty_str(const char *str)
2276 {
2277 return str && *str;
2278 }
2279
2280 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2281 {
2282 gchar *buf;
2283 size_t size;
2284 const char *name, *file, *str;
2285 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2286
2287 if (fw_cfg == NULL) {
2288 error_setg(errp, "fw_cfg device not available");
2289 return -1;
2290 }
2291 name = qemu_opt_get(opts, "name");
2292 file = qemu_opt_get(opts, "file");
2293 str = qemu_opt_get(opts, "string");
2294
2295 /* we need name and either a file or the content string */
2296 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2297 error_setg(errp, "invalid argument(s)");
2298 return -1;
2299 }
2300 if (nonempty_str(file) && nonempty_str(str)) {
2301 error_setg(errp, "file and string are mutually exclusive");
2302 return -1;
2303 }
2304 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2305 error_setg(errp, "name too long (max. %d char)",
2306 FW_CFG_MAX_FILE_PATH - 1);
2307 return -1;
2308 }
2309 if (strncmp(name, "opt/", 4) != 0) {
2310 warn_report("externally provided fw_cfg item names "
2311 "should be prefixed with \"opt/\"");
2312 }
2313 if (nonempty_str(str)) {
2314 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2315 buf = g_memdup(str, size);
2316 } else {
2317 GError *err = NULL;
2318 if (!g_file_get_contents(file, &buf, &size, &err)) {
2319 error_setg(errp, "can't load %s: %s", file, err->message);
2320 g_error_free(err);
2321 return -1;
2322 }
2323 }
2324 /* For legacy, keep user files in a specific global order. */
2325 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2326 fw_cfg_add_file(fw_cfg, name, buf, size);
2327 fw_cfg_reset_order_override(fw_cfg);
2328 return 0;
2329 }
2330
2331 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2332 {
2333 return qdev_device_help(opts);
2334 }
2335
2336 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2337 {
2338 DeviceState *dev;
2339
2340 dev = qdev_device_add(opts, errp);
2341 if (!dev) {
2342 return -1;
2343 }
2344 object_unref(OBJECT(dev));
2345 return 0;
2346 }
2347
2348 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2349 {
2350 Error *local_err = NULL;
2351
2352 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2353 if (local_err) {
2354 error_propagate(errp, local_err);
2355 return -1;
2356 }
2357 exit(0);
2358 }
2359 return 0;
2360 }
2361
2362 #ifdef CONFIG_VIRTFS
2363 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2364 {
2365 return qemu_fsdev_add(opts, errp);
2366 }
2367 #endif
2368
2369 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2370 {
2371 Chardev *chr;
2372 const char *chardev;
2373 const char *mode;
2374 int flags;
2375
2376 mode = qemu_opt_get(opts, "mode");
2377 if (mode == NULL) {
2378 mode = "readline";
2379 }
2380 if (strcmp(mode, "readline") == 0) {
2381 flags = MONITOR_USE_READLINE;
2382 } else if (strcmp(mode, "control") == 0) {
2383 flags = MONITOR_USE_CONTROL;
2384 } else {
2385 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2386 return -1;
2387 }
2388
2389 if (qemu_opt_get_bool(opts, "pretty", 0))
2390 flags |= MONITOR_USE_PRETTY;
2391
2392 chardev = qemu_opt_get(opts, "chardev");
2393 if (!chardev) {
2394 error_report("chardev is required");
2395 exit(1);
2396 }
2397 chr = qemu_chr_find(chardev);
2398 if (chr == NULL) {
2399 error_setg(errp, "chardev \"%s\" not found", chardev);
2400 return -1;
2401 }
2402
2403 monitor_init(chr, flags);
2404 return 0;
2405 }
2406
2407 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2408 {
2409 static int monitor_device_index = 0;
2410 QemuOpts *opts;
2411 const char *p;
2412 char label[32];
2413
2414 if (strstart(optarg, "chardev:", &p)) {
2415 snprintf(label, sizeof(label), "%s", p);
2416 } else {
2417 snprintf(label, sizeof(label), "compat_monitor%d",
2418 monitor_device_index);
2419 opts = qemu_chr_parse_compat(label, optarg, true);
2420 if (!opts) {
2421 error_report("parse error: %s", optarg);
2422 exit(1);
2423 }
2424 }
2425
2426 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2427 qemu_opt_set(opts, "mode", mode, &error_abort);
2428 qemu_opt_set(opts, "chardev", label, &error_abort);
2429 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2430 monitor_device_index++;
2431 }
2432
2433 struct device_config {
2434 enum {
2435 DEV_USB, /* -usbdevice */
2436 DEV_BT, /* -bt */
2437 DEV_SERIAL, /* -serial */
2438 DEV_PARALLEL, /* -parallel */
2439 DEV_DEBUGCON, /* -debugcon */
2440 DEV_GDB, /* -gdb, -s */
2441 DEV_SCLP, /* s390 sclp */
2442 } type;
2443 const char *cmdline;
2444 Location loc;
2445 QTAILQ_ENTRY(device_config) next;
2446 };
2447
2448 static QTAILQ_HEAD(, device_config) device_configs =
2449 QTAILQ_HEAD_INITIALIZER(device_configs);
2450
2451 static void add_device_config(int type, const char *cmdline)
2452 {
2453 struct device_config *conf;
2454
2455 conf = g_malloc0(sizeof(*conf));
2456 conf->type = type;
2457 conf->cmdline = cmdline;
2458 loc_save(&conf->loc);
2459 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2460 }
2461
2462 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2463 {
2464 struct device_config *conf;
2465 int rc;
2466
2467 QTAILQ_FOREACH(conf, &device_configs, next) {
2468 if (conf->type != type)
2469 continue;
2470 loc_push_restore(&conf->loc);
2471 rc = func(conf->cmdline);
2472 loc_pop(&conf->loc);
2473 if (rc) {
2474 return rc;
2475 }
2476 }
2477 return 0;
2478 }
2479
2480 static int serial_parse(const char *devname)
2481 {
2482 int index = num_serial_hds;
2483 char label[32];
2484
2485 if (strcmp(devname, "none") == 0)
2486 return 0;
2487 snprintf(label, sizeof(label), "serial%d", index);
2488 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2489
2490 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2491 if (!serial_hds[index]) {
2492 error_report("could not connect serial device"
2493 " to character backend '%s'", devname);
2494 return -1;
2495 }
2496 num_serial_hds++;
2497 return 0;
2498 }
2499
2500 Chardev *serial_hd(int i)
2501 {
2502 assert(i >= 0);
2503 if (i < num_serial_hds) {
2504 return serial_hds[i];
2505 }
2506 return NULL;
2507 }
2508
2509 int serial_max_hds(void)
2510 {
2511 return num_serial_hds;
2512 }
2513
2514 static int parallel_parse(const char *devname)
2515 {
2516 static int index = 0;
2517 char label[32];
2518
2519 if (strcmp(devname, "none") == 0)
2520 return 0;
2521 if (index == MAX_PARALLEL_PORTS) {
2522 error_report("too many parallel ports");
2523 exit(1);
2524 }
2525 snprintf(label, sizeof(label), "parallel%d", index);
2526 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2527 if (!parallel_hds[index]) {
2528 error_report("could not connect parallel device"
2529 " to character backend '%s'", devname);
2530 return -1;
2531 }
2532 index++;
2533 return 0;
2534 }
2535
2536 static int debugcon_parse(const char *devname)
2537 {
2538 QemuOpts *opts;
2539
2540 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2541 error_report("invalid character backend '%s'", devname);
2542 exit(1);
2543 }
2544 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2545 if (!opts) {
2546 error_report("already have a debugcon device");
2547 exit(1);
2548 }
2549 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2550 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2551 return 0;
2552 }
2553
2554 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2555 {
2556 const MachineClass *mc1 = a, *mc2 = b;
2557 int res;
2558
2559 if (mc1->family == NULL) {
2560 if (mc2->family == NULL) {
2561 /* Compare standalone machine types against each other; they sort
2562 * in increasing order.
2563 */
2564 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2565 object_class_get_name(OBJECT_CLASS(mc2)));
2566 }
2567
2568 /* Standalone machine types sort after families. */
2569 return 1;
2570 }
2571
2572 if (mc2->family == NULL) {
2573 /* Families sort before standalone machine types. */
2574 return -1;
2575 }
2576
2577 /* Families sort between each other alphabetically increasingly. */
2578 res = strcmp(mc1->family, mc2->family);
2579 if (res != 0) {
2580 return res;
2581 }
2582
2583 /* Within the same family, machine types sort in decreasing order. */
2584 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2585 object_class_get_name(OBJECT_CLASS(mc1)));
2586 }
2587
2588 static MachineClass *machine_parse(const char *name)
2589 {
2590 MachineClass *mc = NULL;
2591 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2592
2593 if (name) {
2594 mc = find_machine(name);
2595 }
2596 if (mc) {
2597 g_slist_free(machines);
2598 return mc;
2599 }
2600 if (name && !is_help_option(name)) {
2601 error_report("unsupported machine type");
2602 error_printf("Use -machine help to list supported machines\n");
2603 } else {
2604 printf("Supported machines are:\n");
2605 machines = g_slist_sort(machines, machine_class_cmp);
2606 for (el = machines; el; el = el->next) {
2607 MachineClass *mc = el->data;
2608 if (mc->alias) {
2609 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2610 }
2611 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2612 mc->is_default ? " (default)" : "",
2613 mc->deprecation_reason ? " (deprecated)" : "");
2614 }
2615 }
2616
2617 g_slist_free(machines);
2618 exit(!name || !is_help_option(name));
2619 }
2620
2621 void qemu_add_exit_notifier(Notifier *notify)
2622 {
2623 notifier_list_add(&exit_notifiers, notify);
2624 }
2625
2626 void qemu_remove_exit_notifier(Notifier *notify)
2627 {
2628 notifier_remove(notify);
2629 }
2630
2631 static void qemu_run_exit_notifiers(void)
2632 {
2633 notifier_list_notify(&exit_notifiers, NULL);
2634 }
2635
2636 static const char *pid_file;
2637 static Notifier qemu_unlink_pidfile_notifier;
2638
2639 static void qemu_unlink_pidfile(Notifier *n, void *data)
2640 {
2641 if (pid_file) {
2642 unlink(pid_file);
2643 }
2644 }
2645
2646 bool machine_init_done;
2647
2648 void qemu_add_machine_init_done_notifier(Notifier *notify)
2649 {
2650 notifier_list_add(&machine_init_done_notifiers, notify);
2651 if (machine_init_done) {
2652 notify->notify(notify, NULL);
2653 }
2654 }
2655
2656 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2657 {
2658 notifier_remove(notify);
2659 }
2660
2661 static void qemu_run_machine_init_done_notifiers(void)
2662 {
2663 machine_init_done = true;
2664 notifier_list_notify(&machine_init_done_notifiers, NULL);
2665 }
2666
2667 static const QEMUOption *lookup_opt(int argc, char **argv,
2668 const char **poptarg, int *poptind)
2669 {
2670 const QEMUOption *popt;
2671 int optind = *poptind;
2672 char *r = argv[optind];
2673 const char *optarg;
2674
2675 loc_set_cmdline(argv, optind, 1);
2676 optind++;
2677 /* Treat --foo the same as -foo. */
2678 if (r[1] == '-')
2679 r++;
2680 popt = qemu_options;
2681 for(;;) {
2682 if (!popt->name) {
2683 error_report("invalid option");
2684 exit(1);
2685 }
2686 if (!strcmp(popt->name, r + 1))
2687 break;
2688 popt++;
2689 }
2690 if (popt->flags & HAS_ARG) {
2691 if (optind >= argc) {
2692 error_report("requires an argument");
2693 exit(1);
2694 }
2695 optarg = argv[optind++];
2696 loc_set_cmdline(argv, optind - 2, 2);
2697 } else {
2698 optarg = NULL;
2699 }
2700
2701 *poptarg = optarg;
2702 *poptind = optind;
2703
2704 return popt;
2705 }
2706
2707 static MachineClass *select_machine(void)
2708 {
2709 MachineClass *machine_class = find_default_machine();
2710 const char *optarg;
2711 QemuOpts *opts;
2712 Location loc;
2713
2714 loc_push_none(&loc);
2715
2716 opts = qemu_get_machine_opts();
2717 qemu_opts_loc_restore(opts);
2718
2719 optarg = qemu_opt_get(opts, "type");
2720 if (optarg) {
2721 machine_class = machine_parse(optarg);
2722 }
2723
2724 if (!machine_class) {
2725 error_report("No machine specified, and there is no default");
2726 error_printf("Use -machine help to list supported machines\n");
2727 exit(1);
2728 }
2729
2730 loc_pop(&loc);
2731 return machine_class;
2732 }
2733
2734 static int machine_set_property(void *opaque,
2735 const char *name, const char *value,
2736 Error **errp)
2737 {
2738 Object *obj = OBJECT(opaque);
2739 Error *local_err = NULL;
2740 char *p, *qom_name;
2741
2742 if (strcmp(name, "type") == 0) {
2743 return 0;
2744 }
2745
2746 qom_name = g_strdup(name);
2747 for (p = qom_name; *p; p++) {
2748 if (*p == '_') {
2749 *p = '-';
2750 }
2751 }
2752
2753 object_property_parse(obj, value, qom_name, &local_err);
2754 g_free(qom_name);
2755
2756 if (local_err) {
2757 error_propagate(errp, local_err);
2758 return -1;
2759 }
2760
2761 return 0;
2762 }
2763
2764
2765 /*
2766 * Initial object creation happens before all other
2767 * QEMU data types are created. The majority of objects
2768 * can be created at this point. The rng-egd object
2769 * cannot be created here, as it depends on the chardev
2770 * already existing.
2771 */
2772 static bool object_create_initial(const char *type, QemuOpts *opts)
2773 {
2774 ObjectClass *klass;
2775
2776 if (is_help_option(type)) {
2777 GSList *l, *list;
2778
2779 printf("List of user creatable objects:\n");
2780 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2781 for (l = list; l != NULL; l = l->next) {
2782 ObjectClass *oc = OBJECT_CLASS(l->data);
2783 printf(" %s\n", object_class_get_name(oc));
2784 }
2785 g_slist_free(list);
2786 exit(0);
2787 }
2788
2789 klass = object_class_by_name(type);
2790 if (klass && qemu_opt_has_help_opt(opts)) {
2791 ObjectPropertyIterator iter;
2792 ObjectProperty *prop;
2793 GPtrArray *array = g_ptr_array_new();
2794 int i;
2795
2796 object_class_property_iter_init(&iter, klass);
2797 while ((prop = object_property_iter_next(&iter))) {
2798 GString *str;
2799
2800 if (!prop->set) {
2801 continue;
2802 }
2803
2804 str = g_string_new(NULL);
2805 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2806 if (prop->description) {
2807 if (str->len < 24) {
2808 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2809 }
2810 g_string_append_printf(str, " - %s", prop->description);
2811 }
2812 g_ptr_array_add(array, g_string_free(str, false));
2813 }
2814 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2815 if (array->len > 0) {
2816 printf("%s options:\n", type);
2817 } else {
2818 printf("There are no options for %s.\n", type);
2819 }
2820 for (i = 0; i < array->len; i++) {
2821 printf("%s\n", (char *)array->pdata[i]);
2822 }
2823 g_ptr_array_set_free_func(array, g_free);
2824 g_ptr_array_free(array, true);
2825 exit(0);
2826 }
2827
2828 if (g_str_equal(type, "rng-egd") ||
2829 g_str_has_prefix(type, "pr-manager-")) {
2830 return false;
2831 }
2832
2833 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2834 if (g_str_equal(type, "cryptodev-vhost-user")) {
2835 return false;
2836 }
2837 #endif
2838
2839 /*
2840 * return false for concrete netfilters since
2841 * they depend on netdevs already existing
2842 */
2843 if (g_str_equal(type, "filter-buffer") ||
2844 g_str_equal(type, "filter-dump") ||
2845 g_str_equal(type, "filter-mirror") ||
2846 g_str_equal(type, "filter-redirector") ||
2847 g_str_equal(type, "colo-compare") ||
2848 g_str_equal(type, "filter-rewriter") ||
2849 g_str_equal(type, "filter-replay")) {
2850 return false;
2851 }
2852
2853 /* Memory allocation by backends needs to be done
2854 * after configure_accelerator() (due to the tcg_enabled()
2855 * checks at memory_region_init_*()).
2856 *
2857 * Also, allocation of large amounts of memory may delay
2858 * chardev initialization for too long, and trigger timeouts
2859 * on software that waits for a monitor socket to be created
2860 * (e.g. libvirt).
2861 */
2862 if (g_str_has_prefix(type, "memory-backend-")) {
2863 return false;
2864 }
2865
2866 return true;
2867 }
2868
2869
2870 /*
2871 * The remainder of object creation happens after the
2872 * creation of chardev, fsdev, net clients and device data types.
2873 */
2874 static bool object_create_delayed(const char *type, QemuOpts *opts)
2875 {
2876 return !object_create_initial(type, opts);
2877 }
2878
2879
2880 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2881 MachineClass *mc)
2882 {
2883 uint64_t sz;
2884 const char *mem_str;
2885 const ram_addr_t default_ram_size = mc->default_ram_size;
2886 QemuOpts *opts = qemu_find_opts_singleton("memory");
2887 Location loc;
2888
2889 loc_push_none(&loc);
2890 qemu_opts_loc_restore(opts);
2891
2892 sz = 0;
2893 mem_str = qemu_opt_get(opts, "size");
2894 if (mem_str) {
2895 if (!*mem_str) {
2896 error_report("missing 'size' option value");
2897 exit(EXIT_FAILURE);
2898 }
2899
2900 sz = qemu_opt_get_size(opts, "size", ram_size);
2901
2902 /* Fix up legacy suffix-less format */
2903 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2904 uint64_t overflow_check = sz;
2905
2906 sz *= MiB;
2907 if (sz / MiB != overflow_check) {
2908 error_report("too large 'size' option value");
2909 exit(EXIT_FAILURE);
2910 }
2911 }
2912 }
2913
2914 /* backward compatibility behaviour for case "-m 0" */
2915 if (sz == 0) {
2916 sz = default_ram_size;
2917 }
2918
2919 sz = QEMU_ALIGN_UP(sz, 8192);
2920 ram_size = sz;
2921 if (ram_size != sz) {
2922 error_report("ram size too large");
2923 exit(EXIT_FAILURE);
2924 }
2925
2926 /* store value for the future use */
2927 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2928 *maxram_size = ram_size;
2929
2930 if (qemu_opt_get(opts, "maxmem")) {
2931 uint64_t slots;
2932
2933 sz = qemu_opt_get_size(opts, "maxmem", 0);
2934 slots = qemu_opt_get_number(opts, "slots", 0);
2935 if (sz < ram_size) {
2936 error_report("invalid value of -m option maxmem: "
2937 "maximum memory size (0x%" PRIx64 ") must be at least "
2938 "the initial memory size (0x" RAM_ADDR_FMT ")",
2939 sz, ram_size);
2940 exit(EXIT_FAILURE);
2941 } else if (slots && sz == ram_size) {
2942 error_report("invalid value of -m option maxmem: "
2943 "memory slots were specified but maximum memory size "
2944 "(0x%" PRIx64 ") is equal to the initial memory size "
2945 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2946 exit(EXIT_FAILURE);
2947 }
2948
2949 *maxram_size = sz;
2950 *ram_slots = slots;
2951 } else if (qemu_opt_get(opts, "slots")) {
2952 error_report("invalid -m option value: missing 'maxmem' option");
2953 exit(EXIT_FAILURE);
2954 }
2955
2956 loc_pop(&loc);
2957 }
2958
2959 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2960 {
2961 GlobalProperty *g;
2962
2963 g = g_malloc0(sizeof(*g));
2964 g->driver = qemu_opt_get(opts, "driver");
2965 g->property = qemu_opt_get(opts, "property");
2966 g->value = qemu_opt_get(opts, "value");
2967 qdev_prop_register_global(g);
2968 return 0;
2969 }
2970
2971 static int qemu_read_default_config_file(void)
2972 {
2973 int ret;
2974
2975 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2976 if (ret < 0 && ret != -ENOENT) {
2977 return ret;
2978 }
2979
2980 return 0;
2981 }
2982
2983 static void user_register_global_props(void)
2984 {
2985 qemu_opts_foreach(qemu_find_opts("global"),
2986 global_init_func, NULL, NULL);
2987 }
2988
2989 int main(int argc, char **argv, char **envp)
2990 {
2991 int i;
2992 int snapshot, linux_boot;
2993 const char *initrd_filename;
2994 const char *kernel_filename, *kernel_cmdline;
2995 const char *boot_order = NULL;
2996 const char *boot_once = NULL;
2997 DisplayState *ds;
2998 QemuOpts *opts, *machine_opts;
2999 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3000 QemuOptsList *olist;
3001 int optind;
3002 const char *optarg;
3003 const char *loadvm = NULL;
3004 MachineClass *machine_class;
3005 const char *cpu_model;
3006 const char *vga_model = NULL;
3007 const char *qtest_chrdev = NULL;
3008 const char *qtest_log = NULL;
3009 const char *incoming = NULL;
3010 bool userconfig = true;
3011 bool nographic = false;
3012 int display_remote = 0;
3013 const char *log_mask = NULL;
3014 const char *log_file = NULL;
3015 char *trace_file = NULL;
3016 ram_addr_t maxram_size;
3017 uint64_t ram_slots = 0;
3018 FILE *vmstate_dump_file = NULL;
3019 Error *main_loop_err = NULL;
3020 Error *err = NULL;
3021 bool list_data_dirs = false;
3022 char *dir, **dirs;
3023 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3024
3025 module_call_init(MODULE_INIT_TRACE);
3026
3027 qemu_init_cpu_list();
3028 qemu_init_cpu_loop();
3029
3030 qemu_mutex_lock_iothread();
3031
3032 atexit(qemu_run_exit_notifiers);
3033 error_set_progname(argv[0]);
3034 qemu_init_exec_dir(argv[0]);
3035
3036 module_call_init(MODULE_INIT_QOM);
3037
3038 qemu_add_opts(&qemu_drive_opts);
3039 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3040 qemu_add_drive_opts(&qemu_common_drive_opts);
3041 qemu_add_drive_opts(&qemu_drive_opts);
3042 qemu_add_drive_opts(&bdrv_runtime_opts);
3043 qemu_add_opts(&qemu_chardev_opts);
3044 qemu_add_opts(&qemu_device_opts);
3045 qemu_add_opts(&qemu_netdev_opts);
3046 qemu_add_opts(&qemu_nic_opts);
3047 qemu_add_opts(&qemu_net_opts);
3048 qemu_add_opts(&qemu_rtc_opts);
3049 qemu_add_opts(&qemu_global_opts);
3050 qemu_add_opts(&qemu_mon_opts);
3051 qemu_add_opts(&qemu_trace_opts);
3052 qemu_add_opts(&qemu_option_rom_opts);
3053 qemu_add_opts(&qemu_machine_opts);
3054 qemu_add_opts(&qemu_accel_opts);
3055 qemu_add_opts(&qemu_mem_opts);
3056 qemu_add_opts(&qemu_smp_opts);
3057 qemu_add_opts(&qemu_boot_opts);
3058 qemu_add_opts(&qemu_add_fd_opts);
3059 qemu_add_opts(&qemu_object_opts);
3060 qemu_add_opts(&qemu_tpmdev_opts);
3061 qemu_add_opts(&qemu_realtime_opts);
3062 qemu_add_opts(&qemu_overcommit_opts);
3063 qemu_add_opts(&qemu_msg_opts);
3064 qemu_add_opts(&qemu_name_opts);
3065 qemu_add_opts(&qemu_numa_opts);
3066 qemu_add_opts(&qemu_icount_opts);
3067 qemu_add_opts(&qemu_semihosting_config_opts);
3068 qemu_add_opts(&qemu_fw_cfg_opts);
3069 module_call_init(MODULE_INIT_OPTS);
3070
3071 runstate_init();
3072 precopy_infrastructure_init();
3073 postcopy_infrastructure_init();
3074 monitor_init_globals();
3075
3076 if (qcrypto_init(&err) < 0) {
3077 error_reportf_err(err, "cannot initialize crypto: ");
3078 exit(1);
3079 }
3080
3081 QLIST_INIT (&vm_change_state_head);
3082 os_setup_early_signal_handling();
3083
3084 cpu_model = NULL;
3085 snapshot = 0;
3086
3087 nb_nics = 0;
3088
3089 bdrv_init_with_whitelist();
3090
3091 autostart = 1;
3092
3093 /* first pass of option parsing */
3094 optind = 1;
3095 while (optind < argc) {
3096 if (argv[optind][0] != '-') {
3097 /* disk image */
3098 optind++;
3099 } else {
3100 const QEMUOption *popt;
3101
3102 popt = lookup_opt(argc, argv, &optarg, &optind);
3103 switch (popt->index) {
3104 case QEMU_OPTION_nouserconfig:
3105 userconfig = false;
3106 break;
3107 }
3108 }
3109 }
3110
3111 if (userconfig) {
3112 if (qemu_read_default_config_file() < 0) {
3113 exit(1);
3114 }
3115 }
3116
3117 /* second pass of option parsing */
3118 optind = 1;
3119 for(;;) {
3120 if (optind >= argc)
3121 break;
3122 if (argv[optind][0] != '-') {
3123 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3124 } else {
3125 const QEMUOption *popt;
3126
3127 popt = lookup_opt(argc, argv, &optarg, &optind);
3128 if (!(popt->arch_mask & arch_type)) {
3129 error_report("Option not supported for this target");
3130 exit(1);
3131 }
3132 switch(popt->index) {
3133 case QEMU_OPTION_cpu:
3134 /* hw initialization will check this */
3135 cpu_model = optarg;
3136 break;
3137 case QEMU_OPTION_hda:
3138 case QEMU_OPTION_hdb:
3139 case QEMU_OPTION_hdc:
3140 case QEMU_OPTION_hdd:
3141 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3142 HD_OPTS);
3143 break;
3144 case QEMU_OPTION_blockdev:
3145 {
3146 Visitor *v;
3147 BlockdevOptionsQueueEntry *bdo;
3148
3149 v = qobject_input_visitor_new_str(optarg, "driver",
3150 &error_fatal);
3151
3152 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3153 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3154 &error_fatal);
3155 visit_free(v);
3156 loc_save(&bdo->loc);
3157 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3158 break;
3159 }
3160 case QEMU_OPTION_drive:
3161 if (drive_def(optarg) == NULL) {
3162 exit(1);
3163 }
3164 break;
3165 case QEMU_OPTION_set:
3166 if (qemu_set_option(optarg) != 0)
3167 exit(1);
3168 break;
3169 case QEMU_OPTION_global:
3170 if (qemu_global_option(optarg) != 0)
3171 exit(1);
3172 break;
3173 case QEMU_OPTION_mtdblock:
3174 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3175 break;
3176 case QEMU_OPTION_sd:
3177 drive_add(IF_SD, -1, optarg, SD_OPTS);
3178 break;
3179 case QEMU_OPTION_pflash:
3180 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3181 break;
3182 case QEMU_OPTION_snapshot:
3183 snapshot = 1;
3184 break;
3185 case QEMU_OPTION_numa:
3186 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3187 optarg, true);
3188 if (!opts) {
3189 exit(1);
3190 }
3191 break;
3192 case QEMU_OPTION_display:
3193 parse_display(optarg);
3194 break;
3195 case QEMU_OPTION_nographic:
3196 olist = qemu_find_opts("machine");
3197 qemu_opts_parse_noisily(olist, "graphics=off", false);
3198 nographic = true;
3199 dpy.type = DISPLAY_TYPE_NONE;
3200 break;
3201 case QEMU_OPTION_curses:
3202 #ifdef CONFIG_CURSES
3203 dpy.type = DISPLAY_TYPE_CURSES;
3204 #else
3205 error_report("curses support is disabled");
3206 exit(1);
3207 #endif
3208 break;
3209 case QEMU_OPTION_portrait:
3210 graphic_rotate = 90;
3211 break;
3212 case QEMU_OPTION_rotate:
3213 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3214 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3215 graphic_rotate != 180 && graphic_rotate != 270) {
3216 error_report("only 90, 180, 270 deg rotation is available");
3217 exit(1);
3218 }
3219 break;
3220 case QEMU_OPTION_kernel:
3221 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3222 &error_abort);
3223 break;
3224 case QEMU_OPTION_initrd:
3225 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3226 &error_abort);
3227 break;
3228 case QEMU_OPTION_append:
3229 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3230 &error_abort);
3231 break;
3232 case QEMU_OPTION_dtb:
3233 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3234 &error_abort);
3235 break;
3236 case QEMU_OPTION_cdrom:
3237 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3238 break;
3239 case QEMU_OPTION_boot:
3240 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3241 optarg, true);
3242 if (!opts) {
3243 exit(1);
3244 }
3245 break;
3246 case QEMU_OPTION_fda:
3247 case QEMU_OPTION_fdb:
3248 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3249 optarg, FD_OPTS);
3250 break;
3251 case QEMU_OPTION_no_fd_bootchk:
3252 fd_bootchk = 0;
3253 break;
3254 case QEMU_OPTION_netdev:
3255 default_net = 0;
3256 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3257 exit(1);
3258 }
3259 break;
3260 case QEMU_OPTION_nic:
3261 default_net = 0;
3262 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3263 exit(1);
3264 }
3265 break;
3266 case QEMU_OPTION_net:
3267 default_net = 0;
3268 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3269 exit(1);
3270 }
3271 break;
3272 #ifdef CONFIG_LIBISCSI
3273 case QEMU_OPTION_iscsi:
3274 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3275 optarg, false);
3276 if (!opts) {
3277 exit(1);
3278 }
3279 break;
3280 #endif
3281 case QEMU_OPTION_bt:
3282 warn_report("The bluetooth subsystem is deprecated and will "
3283 "be removed soon. If the bluetooth subsystem is "
3284 "still useful for you, please send a mail to "
3285 "qemu-devel@nongnu.org with your usecase.");
3286 add_device_config(DEV_BT, optarg);
3287 break;
3288 case QEMU_OPTION_audio_help:
3289 AUD_help ();
3290 exit (0);
3291 break;
3292 case QEMU_OPTION_soundhw:
3293 select_soundhw (optarg);
3294 break;
3295 case QEMU_OPTION_h:
3296 help(0);
3297 break;
3298 case QEMU_OPTION_version:
3299 version();
3300 exit(0);
3301 break;
3302 case QEMU_OPTION_m:
3303 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3304 optarg, true);
3305 if (!opts) {
3306 exit(EXIT_FAILURE);
3307 }
3308 break;
3309 #ifdef CONFIG_TPM
3310 case QEMU_OPTION_tpmdev:
3311 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3312 exit(1);
3313 }
3314 break;
3315 #endif
3316 case QEMU_OPTION_mempath:
3317 mem_path = optarg;
3318 break;
3319 case QEMU_OPTION_mem_prealloc:
3320 mem_prealloc = 1;
3321 break;
3322 case QEMU_OPTION_d:
3323 log_mask = optarg;
3324 break;
3325 case QEMU_OPTION_D:
3326 log_file = optarg;
3327 break;
3328 case QEMU_OPTION_DFILTER:
3329 qemu_set_dfilter_ranges(optarg, &error_fatal);
3330 break;
3331 case QEMU_OPTION_s:
3332 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3333 break;
3334 case QEMU_OPTION_gdb:
3335 add_device_config(DEV_GDB, optarg);
3336 break;
3337 case QEMU_OPTION_L:
3338 if (is_help_option(optarg)) {
3339 list_data_dirs = true;
3340 } else {
3341 qemu_add_data_dir(optarg);
3342 }
3343 break;
3344 case QEMU_OPTION_bios:
3345 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3346 &error_abort);
3347 break;
3348 case QEMU_OPTION_singlestep:
3349 singlestep = 1;
3350 break;
3351 case QEMU_OPTION_S:
3352 autostart = 0;
3353 break;
3354 case QEMU_OPTION_k:
3355 keyboard_layout = optarg;
3356 break;
3357 case QEMU_OPTION_vga:
3358 vga_model = optarg;
3359 default_vga = 0;
3360 break;
3361 case QEMU_OPTION_g:
3362 {
3363 const char *p;
3364 int w, h, depth;
3365 p = optarg;
3366 w = strtol(p, (char **)&p, 10);
3367 if (w <= 0) {
3368 graphic_error:
3369 error_report("invalid resolution or depth");
3370 exit(1);
3371 }
3372 if (*p != 'x')
3373 goto graphic_error;
3374 p++;
3375 h = strtol(p, (char **)&p, 10);
3376 if (h <= 0)
3377 goto graphic_error;
3378 if (*p == 'x') {
3379 p++;
3380 depth = strtol(p, (char **)&p, 10);
3381 if (depth != 8 && depth != 15 && depth != 16 &&
3382 depth != 24 && depth != 32)
3383 goto graphic_error;
3384 } else if (*p == '\0') {
3385 depth = graphic_depth;
3386 } else {
3387 goto graphic_error;
3388 }
3389
3390 graphic_width = w;
3391 graphic_height = h;
3392 graphic_depth = depth;
3393 }
3394 break;
3395 case QEMU_OPTION_echr:
3396 {
3397 char *r;
3398 term_escape_char = strtol(optarg, &r, 0);
3399 if (r == optarg)
3400 printf("Bad argument to echr\n");
3401 break;
3402 }
3403 case QEMU_OPTION_monitor:
3404 default_monitor = 0;
3405 if (strncmp(optarg, "none", 4)) {
3406 monitor_parse(optarg, "readline", false);
3407 }
3408 break;
3409 case QEMU_OPTION_qmp:
3410 monitor_parse(optarg, "control", false);
3411 default_monitor = 0;
3412 break;
3413 case QEMU_OPTION_qmp_pretty:
3414 monitor_parse(optarg, "control", true);
3415 default_monitor = 0;
3416 break;
3417 case QEMU_OPTION_mon:
3418 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3419 true);
3420 if (!opts) {
3421 exit(1);
3422 }
3423 default_monitor = 0;
3424 break;
3425 case QEMU_OPTION_chardev:
3426 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3427 optarg, true);
3428 if (!opts) {
3429 exit(1);
3430 }
3431 break;
3432 case QEMU_OPTION_fsdev:
3433 olist = qemu_find_opts("fsdev");
3434 if (!olist) {
3435 error_report("fsdev support is disabled");
3436 exit(1);
3437 }
3438 opts = qemu_opts_parse_noisily(olist, optarg, true);
3439 if (!opts) {
3440 exit(1);
3441 }
3442 break;
3443 case QEMU_OPTION_virtfs: {
3444 QemuOpts *fsdev;
3445 QemuOpts *device;
3446 const char *writeout, *sock_fd, *socket, *path, *security_model;
3447
3448 olist = qemu_find_opts("virtfs");
3449 if (!olist) {
3450 error_report("virtfs support is disabled");
3451 exit(1);
3452 }
3453 opts = qemu_opts_parse_noisily(olist, optarg, true);
3454 if (!opts) {
3455 exit(1);
3456 }
3457
3458 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3459 qemu_opt_get(opts, "mount_tag") == NULL) {
3460 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3461 exit(1);
3462 }
3463 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3464 qemu_opts_id(opts) ?:
3465 qemu_opt_get(opts, "mount_tag"),
3466 1, NULL);
3467 if (!fsdev) {
3468 error_report("duplicate or invalid fsdev id: %s",
3469 qemu_opt_get(opts, "mount_tag"));
3470 exit(1);
3471 }
3472
3473 writeout = qemu_opt_get(opts, "writeout");
3474 if (writeout) {
3475 #ifdef CONFIG_SYNC_FILE_RANGE
3476 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3477 #else
3478 error_report("writeout=immediate not supported "
3479 "on this platform");
3480 exit(1);
3481 #endif
3482 }
3483 qemu_opt_set(fsdev, "fsdriver",
3484 qemu_opt_get(opts, "fsdriver"), &error_abort);
3485 path = qemu_opt_get(opts, "path");
3486 if (path) {
3487 qemu_opt_set(fsdev, "path", path, &error_abort);
3488 }
3489 security_model = qemu_opt_get(opts, "security_model");
3490 if (security_model) {
3491 qemu_opt_set(fsdev, "security_model", security_model,
3492 &error_abort);
3493 }
3494 socket = qemu_opt_get(opts, "socket");
3495 if (socket) {
3496 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3497 }
3498 sock_fd = qemu_opt_get(opts, "sock_fd");
3499 if (sock_fd) {
3500 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3501 }
3502
3503 qemu_opt_set_bool(fsdev, "readonly",
3504 qemu_opt_get_bool(opts, "readonly", 0),
3505 &error_abort);
3506 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3507 &error_abort);
3508 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3509 qemu_opt_set(device, "fsdev",
3510 qemu_opts_id(fsdev), &error_abort);
3511 qemu_opt_set(device, "mount_tag",
3512 qemu_opt_get(opts, "mount_tag"), &error_abort);
3513 break;
3514 }
3515 case QEMU_OPTION_virtfs_synth: {
3516 QemuOpts *fsdev;
3517 QemuOpts *device;
3518
3519 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3520 1, NULL);
3521 if (!fsdev) {
3522 error_report("duplicate option: %s", "virtfs_synth");
3523 exit(1);
3524 }
3525 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3526
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", "v_synth", &error_abort);
3531 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3532 break;
3533 }
3534 case QEMU_OPTION_serial:
3535 add_device_config(DEV_SERIAL, optarg);
3536 default_serial = 0;
3537 if (strncmp(optarg, "mon:", 4) == 0) {
3538 default_monitor = 0;
3539 }
3540 break;
3541 case QEMU_OPTION_watchdog:
3542 if (watchdog) {
3543 error_report("only one watchdog option may be given");
3544 return 1;
3545 }
3546 watchdog = optarg;
3547 break;
3548 case QEMU_OPTION_watchdog_action:
3549 if (select_watchdog_action(optarg) == -1) {
3550 error_report("unknown -watchdog-action parameter");
3551 exit(1);
3552 }
3553 break;
3554 case QEMU_OPTION_parallel:
3555 add_device_config(DEV_PARALLEL, optarg);
3556 default_parallel = 0;
3557 if (strncmp(optarg, "mon:", 4) == 0) {
3558 default_monitor = 0;
3559 }
3560 break;
3561 case QEMU_OPTION_debugcon:
3562 add_device_config(DEV_DEBUGCON, optarg);
3563 break;
3564 case QEMU_OPTION_loadvm:
3565 loadvm = optarg;
3566 break;
3567 case QEMU_OPTION_full_screen:
3568 dpy.has_full_screen = true;
3569 dpy.full_screen = true;
3570 break;
3571 case QEMU_OPTION_alt_grab:
3572 alt_grab = 1;
3573 break;
3574 case QEMU_OPTION_ctrl_grab:
3575 ctrl_grab = 1;
3576 break;
3577 case QEMU_OPTION_no_quit:
3578 dpy.has_window_close = true;
3579 dpy.window_close = false;
3580 break;
3581 case QEMU_OPTION_sdl:
3582 #ifdef CONFIG_SDL
3583 dpy.type = DISPLAY_TYPE_SDL;
3584 break;
3585 #else
3586 error_report("SDL support is disabled");
3587 exit(1);
3588 #endif
3589 case QEMU_OPTION_pidfile:
3590 pid_file = optarg;
3591 break;
3592 case QEMU_OPTION_win2k_hack:
3593 win2k_install_hack = 1;
3594 break;
3595 case QEMU_OPTION_acpitable:
3596 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3597 optarg, true);
3598 if (!opts) {
3599 exit(1);
3600 }
3601 acpi_table_add(opts, &error_fatal);
3602 break;
3603 case QEMU_OPTION_smbios:
3604 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3605 optarg, false);
3606 if (!opts) {
3607 exit(1);
3608 }
3609 smbios_entry_add(opts, &error_fatal);
3610 break;
3611 case QEMU_OPTION_fwcfg:
3612 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3613 optarg, true);
3614 if (opts == NULL) {
3615 exit(1);
3616 }
3617 break;
3618 case QEMU_OPTION_preconfig:
3619 preconfig_exit_requested = false;
3620 break;
3621 case QEMU_OPTION_enable_kvm:
3622 olist = qemu_find_opts("machine");
3623 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3624 break;
3625 case QEMU_OPTION_M:
3626 case QEMU_OPTION_machine:
3627 olist = qemu_find_opts("machine");
3628 opts = qemu_opts_parse_noisily(olist, optarg, true);
3629 if (!opts) {
3630 exit(1);
3631 }
3632 break;
3633 case QEMU_OPTION_no_kvm:
3634 olist = qemu_find_opts("machine");
3635 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3636 break;
3637 case QEMU_OPTION_accel:
3638 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3639 optarg, true);
3640 optarg = qemu_opt_get(accel_opts, "accel");
3641 if (!optarg || is_help_option(optarg)) {
3642 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3643 exit(0);
3644 }
3645 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3646 false, &error_abort);
3647 qemu_opt_set(opts, "accel", optarg, &error_abort);
3648 break;
3649 case QEMU_OPTION_usb:
3650 olist = qemu_find_opts("machine");
3651 qemu_opts_parse_noisily(olist, "usb=on", false);
3652 break;
3653 case QEMU_OPTION_usbdevice:
3654 error_report("'-usbdevice' is deprecated, please use "
3655 "'-device usb-...' instead");
3656 olist = qemu_find_opts("machine");
3657 qemu_opts_parse_noisily(olist, "usb=on", false);
3658 add_device_config(DEV_USB, optarg);
3659 break;
3660 case QEMU_OPTION_device:
3661 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3662 optarg, true)) {
3663 exit(1);
3664 }
3665 break;
3666 case QEMU_OPTION_smp:
3667 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3668 optarg, true)) {
3669 exit(1);
3670 }
3671 break;
3672 case QEMU_OPTION_vnc:
3673 vnc_parse(optarg, &error_fatal);
3674 break;
3675 case QEMU_OPTION_no_acpi:
3676 acpi_enabled = 0;
3677 break;
3678 case QEMU_OPTION_no_hpet:
3679 no_hpet = 1;
3680 break;
3681 case QEMU_OPTION_no_reboot:
3682 no_reboot = 1;
3683 break;
3684 case QEMU_OPTION_no_shutdown:
3685 no_shutdown = 1;
3686 break;
3687 case QEMU_OPTION_show_cursor:
3688 cursor_hide = 0;
3689 break;
3690 case QEMU_OPTION_uuid:
3691 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3692 error_report("failed to parse UUID string: wrong format");
3693 exit(1);
3694 }
3695 qemu_uuid_set = true;
3696 break;
3697 case QEMU_OPTION_option_rom:
3698 if (nb_option_roms >= MAX_OPTION_ROMS) {
3699 error_report("too many option ROMs");
3700 exit(1);
3701 }
3702 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3703 optarg, true);
3704 if (!opts) {
3705 exit(1);
3706 }
3707 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3708 option_rom[nb_option_roms].bootindex =
3709 qemu_opt_get_number(opts, "bootindex", -1);
3710 if (!option_rom[nb_option_roms].name) {
3711 error_report("Option ROM file is not specified");
3712 exit(1);
3713 }
3714 nb_option_roms++;
3715 break;
3716 case QEMU_OPTION_semihosting:
3717 semihosting.enabled = true;
3718 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3719 break;
3720 case QEMU_OPTION_semihosting_config:
3721 semihosting.enabled = true;
3722 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3723 optarg, false);
3724 if (opts != NULL) {
3725 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3726 true);
3727 const char *target = qemu_opt_get(opts, "target");
3728 if (target != NULL) {
3729 if (strcmp("native", target) == 0) {
3730 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3731 } else if (strcmp("gdb", target) == 0) {
3732 semihosting.target = SEMIHOSTING_TARGET_GDB;
3733 } else if (strcmp("auto", target) == 0) {
3734 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3735 } else {
3736 error_report("unsupported semihosting-config %s",
3737 optarg);
3738 exit(1);
3739 }
3740 } else {
3741 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3742 }
3743 /* Set semihosting argument count and vector */
3744 qemu_opt_foreach(opts, add_semihosting_arg,
3745 &semihosting, NULL);
3746 } else {
3747 error_report("unsupported semihosting-config %s", optarg);
3748 exit(1);
3749 }
3750 break;
3751 case QEMU_OPTION_name:
3752 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3753 optarg, true);
3754 if (!opts) {
3755 exit(1);
3756 }
3757 break;
3758 case QEMU_OPTION_prom_env:
3759 if (nb_prom_envs >= MAX_PROM_ENVS) {
3760 error_report("too many prom variables");
3761 exit(1);
3762 }
3763 prom_envs[nb_prom_envs] = optarg;
3764 nb_prom_envs++;
3765 break;
3766 case QEMU_OPTION_old_param:
3767 old_param = 1;
3768 break;
3769 case QEMU_OPTION_rtc:
3770 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3771 false);
3772 if (!opts) {
3773 exit(1);
3774 }
3775 break;
3776 case QEMU_OPTION_tb_size:
3777 #ifndef CONFIG_TCG
3778 error_report("TCG is disabled");
3779 exit(1);
3780 #endif
3781 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3782 error_report("Invalid argument to -tb-size");
3783 exit(1);
3784 }
3785 break;
3786 case QEMU_OPTION_icount:
3787 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3788 optarg, true);
3789 if (!icount_opts) {
3790 exit(1);
3791 }
3792 break;
3793 case QEMU_OPTION_incoming:
3794 if (!incoming) {
3795 runstate_set(RUN_STATE_INMIGRATE);
3796 }
3797 incoming = optarg;
3798 break;
3799 case QEMU_OPTION_only_migratable:
3800 /*
3801 * TODO: we can remove this option one day, and we
3802 * should all use:
3803 *
3804 * "-global migration.only-migratable=true"
3805 */
3806 qemu_global_option("migration.only-migratable=true");
3807 break;
3808 case QEMU_OPTION_nodefaults:
3809 has_defaults = 0;
3810 break;
3811 case QEMU_OPTION_xen_domid:
3812 if (!(xen_available())) {
3813 error_report("Option not supported for this target");
3814 exit(1);
3815 }
3816 xen_domid = atoi(optarg);
3817 break;
3818 case QEMU_OPTION_xen_attach:
3819 if (!(xen_available())) {
3820 error_report("Option not supported for this target");
3821 exit(1);
3822 }
3823 xen_mode = XEN_ATTACH;
3824 break;
3825 case QEMU_OPTION_xen_domid_restrict:
3826 if (!(xen_available())) {
3827 error_report("Option not supported for this target");
3828 exit(1);
3829 }
3830 xen_domid_restrict = true;
3831 break;
3832 case QEMU_OPTION_trace:
3833 g_free(trace_file);
3834 trace_file = trace_opt_parse(optarg);
3835 break;
3836 case QEMU_OPTION_readconfig:
3837 {
3838 int ret = qemu_read_config_file(optarg);
3839 if (ret < 0) {
3840 error_report("read config %s: %s", optarg,
3841 strerror(-ret));
3842 exit(1);
3843 }
3844 break;
3845 }
3846 case QEMU_OPTION_spice:
3847 olist = qemu_find_opts("spice");
3848 if (!olist) {
3849 error_report("spice support is disabled");
3850 exit(1);
3851 }
3852 opts = qemu_opts_parse_noisily(olist, optarg, false);
3853 if (!opts) {
3854 exit(1);
3855 }
3856 display_remote++;
3857 break;
3858 case QEMU_OPTION_writeconfig:
3859 {
3860 FILE *fp;
3861 if (strcmp(optarg, "-") == 0) {
3862 fp = stdout;
3863 } else {
3864 fp = fopen(optarg, "w");
3865 if (fp == NULL) {
3866 error_report("open %s: %s", optarg,
3867 strerror(errno));
3868 exit(1);
3869 }
3870 }
3871 qemu_config_write(fp);
3872 if (fp != stdout) {
3873 fclose(fp);
3874 }
3875 break;
3876 }
3877 case QEMU_OPTION_qtest:
3878 qtest_chrdev = optarg;
3879 break;
3880 case QEMU_OPTION_qtest_log:
3881 qtest_log = optarg;
3882 break;
3883 case QEMU_OPTION_sandbox:
3884 #ifdef CONFIG_SECCOMP
3885 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3886 optarg, true);
3887 if (!opts) {
3888 exit(1);
3889 }
3890 #else
3891 error_report("-sandbox support is not enabled "
3892 "in this QEMU binary");
3893 exit(1);
3894 #endif
3895 break;
3896 case QEMU_OPTION_add_fd:
3897 #ifndef _WIN32
3898 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3899 optarg, false);
3900 if (!opts) {
3901 exit(1);
3902 }
3903 #else
3904 error_report("File descriptor passing is disabled on this "
3905 "platform");
3906 exit(1);
3907 #endif
3908 break;
3909 case QEMU_OPTION_object:
3910 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3911 optarg, true);
3912 if (!opts) {
3913 exit(1);
3914 }
3915 break;
3916 case QEMU_OPTION_realtime:
3917 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3918 optarg, false);
3919 if (!opts) {
3920 exit(1);
3921 }
3922 /* Don't override the -overcommit option if set */
3923 enable_mlock = enable_mlock ||
3924 qemu_opt_get_bool(opts, "mlock", true);
3925 break;
3926 case QEMU_OPTION_overcommit:
3927 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3928 optarg, false);
3929 if (!opts) {
3930 exit(1);
3931 }
3932 /* Don't override the -realtime option if set */
3933 enable_mlock = enable_mlock ||
3934 qemu_opt_get_bool(opts, "mem-lock", false);
3935 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3936 break;
3937 case QEMU_OPTION_msg:
3938 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3939 false);
3940 if (!opts) {
3941 exit(1);
3942 }
3943 configure_msg(opts);
3944 break;
3945 case QEMU_OPTION_dump_vmstate:
3946 if (vmstate_dump_file) {
3947 error_report("only one '-dump-vmstate' "
3948 "option may be given");
3949 exit(1);
3950 }
3951 vmstate_dump_file = fopen(optarg, "w");
3952 if (vmstate_dump_file == NULL) {
3953 error_report("open %s: %s", optarg, strerror(errno));
3954 exit(1);
3955 }
3956 break;
3957 case QEMU_OPTION_enable_sync_profile:
3958 qsp_enable();
3959 break;
3960 case QEMU_OPTION_nouserconfig:
3961 /* Nothing to be parsed here. Especially, do not error out below. */
3962 break;
3963 default:
3964 if (os_parse_cmd_args(popt->index, optarg)) {
3965 error_report("Option not supported in this build");
3966 exit(1);
3967 }
3968 }
3969 }
3970 }
3971 /*
3972 * Clear error location left behind by the loop.
3973 * Best done right after the loop. Do not insert code here!
3974 */
3975 loc_set_none();
3976
3977 user_register_global_props();
3978
3979 replay_configure(icount_opts);
3980
3981 if (incoming && !preconfig_exit_requested) {
3982 error_report("'preconfig' and 'incoming' options are "
3983 "mutually exclusive");
3984 exit(EXIT_FAILURE);
3985 }
3986
3987 configure_rtc(qemu_find_opts_singleton("rtc"));
3988
3989 machine_class = select_machine();
3990 object_set_machine_compat_props(machine_class->compat_props);
3991
3992 set_memory_options(&ram_slots, &maxram_size, machine_class);
3993
3994 os_daemonize();
3995 rcu_disable_atfork();
3996
3997 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3998 error_reportf_err(err, "cannot create PID file: ");
3999 exit(1);
4000 }
4001
4002 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
4003 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4004
4005 if (qemu_init_main_loop(&main_loop_err)) {
4006 error_report_err(main_loop_err);
4007 exit(1);
4008 }
4009
4010 #ifdef CONFIG_SECCOMP
4011 olist = qemu_find_opts_err("sandbox", NULL);
4012 if (olist) {
4013 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4014 }
4015 #endif
4016
4017 qemu_opts_foreach(qemu_find_opts("name"),
4018 parse_name, NULL, &error_fatal);
4019
4020 #ifndef _WIN32
4021 qemu_opts_foreach(qemu_find_opts("add-fd"),
4022 parse_add_fd, NULL, &error_fatal);
4023
4024 qemu_opts_foreach(qemu_find_opts("add-fd"),
4025 cleanup_add_fd, NULL, &error_fatal);
4026 #endif
4027
4028 current_machine = MACHINE(object_new(object_class_get_name(
4029 OBJECT_CLASS(machine_class))));
4030 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4031 exit(0);
4032 }
4033 object_property_add_child(object_get_root(), "machine",
4034 OBJECT(current_machine), &error_abort);
4035 object_property_add_child(container_get(OBJECT(current_machine),
4036 "/unattached"),
4037 "sysbus", OBJECT(sysbus_get_default()),
4038 NULL);
4039
4040 if (machine_class->minimum_page_bits) {
4041 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4042 /* This would be a board error: specifying a minimum smaller than
4043 * a target's compile-time fixed setting.
4044 */
4045 g_assert_not_reached();
4046 }
4047 }
4048
4049 cpu_exec_init_all();
4050
4051 if (machine_class->hw_version) {
4052 qemu_set_hw_version(machine_class->hw_version);
4053 }
4054
4055 if (cpu_model && is_help_option(cpu_model)) {
4056 list_cpus(stdout, &fprintf, cpu_model);
4057 exit(0);
4058 }
4059
4060 if (!trace_init_backends()) {
4061 exit(1);
4062 }
4063 trace_init_file(trace_file);
4064
4065 /* Open the logfile at this point and set the log mask if necessary.
4066 */
4067 if (log_file) {
4068 qemu_set_log_filename(log_file, &error_fatal);
4069 }
4070
4071 if (log_mask) {
4072 int mask;
4073 mask = qemu_str_to_log_mask(log_mask);
4074 if (!mask) {
4075 qemu_print_log_usage(stdout);
4076 exit(1);
4077 }
4078 qemu_set_log(mask);
4079 } else {
4080 qemu_set_log(0);
4081 }
4082
4083 /* add configured firmware directories */
4084 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4085 for (i = 0; dirs[i] != NULL; i++) {
4086 qemu_add_data_dir(dirs[i]);
4087 }
4088 g_strfreev(dirs);
4089
4090 /* try to find datadir relative to the executable path */
4091 dir = os_find_datadir();
4092 qemu_add_data_dir(dir);
4093 g_free(dir);
4094
4095 /* add the datadir specified when building */
4096 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4097
4098 /* -L help lists the data directories and exits. */
4099 if (list_data_dirs) {
4100 for (i = 0; i < data_dir_idx; i++) {
4101 printf("%s\n", data_dir[i]);
4102 }
4103 exit(0);
4104 }
4105
4106 /* machine_class: default to UP */
4107 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4108 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4109 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4110
4111 /* default to machine_class->default_cpus */
4112 smp_cpus = machine_class->default_cpus;
4113 max_cpus = machine_class->default_cpus;
4114
4115 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4116
4117 /* sanity-check smp_cpus and max_cpus against machine_class */
4118 if (smp_cpus < machine_class->min_cpus) {
4119 error_report("Invalid SMP CPUs %d. The min CPUs "
4120 "supported by machine '%s' is %d", smp_cpus,
4121 machine_class->name, machine_class->min_cpus);
4122 exit(1);
4123 }
4124 if (max_cpus > machine_class->max_cpus) {
4125 error_report("Invalid SMP CPUs %d. The max CPUs "
4126 "supported by machine '%s' is %d", max_cpus,
4127 machine_class->name, machine_class->max_cpus);
4128 exit(1);
4129 }
4130
4131 /*
4132 * Get the default machine options from the machine if it is not already
4133 * specified either by the configuration file or by the command line.
4134 */
4135 if (machine_class->default_machine_opts) {
4136 qemu_opts_set_defaults(qemu_find_opts("machine"),
4137 machine_class->default_machine_opts, 0);
4138 }
4139
4140 qemu_opts_foreach(qemu_find_opts("device"),
4141 default_driver_check, NULL, NULL);
4142 qemu_opts_foreach(qemu_find_opts("global"),
4143 default_driver_check, NULL, NULL);
4144
4145 if (!vga_model && !default_vga) {
4146 vga_interface_type = VGA_DEVICE;
4147 }
4148 if (!has_defaults || machine_class->no_serial) {
4149 default_serial = 0;
4150 }
4151 if (!has_defaults || machine_class->no_parallel) {
4152 default_parallel = 0;
4153 }
4154 if (!has_defaults || machine_class->no_floppy) {
4155 default_floppy = 0;
4156 }
4157 if (!has_defaults || machine_class->no_cdrom) {
4158 default_cdrom = 0;
4159 }
4160 if (!has_defaults || machine_class->no_sdcard) {
4161 default_sdcard = 0;
4162 }
4163 if (!has_defaults) {
4164 default_monitor = 0;
4165 default_net = 0;
4166 default_vga = 0;
4167 }
4168
4169 if (is_daemonized()) {
4170 if (!preconfig_exit_requested) {
4171 error_report("'preconfig' and 'daemonize' options are "
4172 "mutually exclusive");
4173 exit(EXIT_FAILURE);
4174 }
4175
4176 /* According to documentation and historically, -nographic redirects
4177 * serial port, parallel port and monitor to stdio, which does not work
4178 * with -daemonize. We can redirect these to null instead, but since
4179 * -nographic is legacy, let's just error out.
4180 * We disallow -nographic only if all other ports are not redirected
4181 * explicitly, to not break existing legacy setups which uses
4182 * -nographic _and_ redirects all ports explicitly - this is valid
4183 * usage, -nographic is just a no-op in this case.
4184 */
4185 if (nographic
4186 && (default_parallel || default_serial || default_monitor)) {
4187 error_report("-nographic cannot be used with -daemonize");
4188 exit(1);
4189 }
4190 #ifdef CONFIG_CURSES
4191 if (dpy.type == DISPLAY_TYPE_CURSES) {
4192 error_report("curses display cannot be used with -daemonize");
4193 exit(1);
4194 }
4195 #endif
4196 }
4197
4198 if (nographic) {
4199 if (default_parallel)
4200 add_device_config(DEV_PARALLEL, "null");
4201 if (default_serial && default_monitor) {
4202 add_device_config(DEV_SERIAL, "mon:stdio");
4203 } else {
4204 if (default_serial)
4205 add_device_config(DEV_SERIAL, "stdio");
4206 if (default_monitor)
4207 monitor_parse("stdio", "readline", false);
4208 }
4209 } else {
4210 if (default_serial)
4211 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4212 if (default_parallel)
4213 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4214 if (default_monitor)
4215 monitor_parse("vc:80Cx24C", "readline", false);
4216 }
4217
4218 #if defined(CONFIG_VNC)
4219 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4220 display_remote++;
4221 }
4222 #endif
4223 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4224 if (!qemu_display_find_default(&dpy)) {
4225 dpy.type = DISPLAY_TYPE_NONE;
4226 #if defined(CONFIG_VNC)
4227 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4228 #endif
4229 }
4230 }
4231 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4232 dpy.type = DISPLAY_TYPE_NONE;
4233 }
4234
4235 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4236 error_report("-alt-grab and -ctrl-grab are only valid "
4237 "for SDL, ignoring option");
4238 }
4239 if (dpy.has_window_close &&
4240 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4241 error_report("-no-quit is only valid for GTK and SDL, "
4242 "ignoring option");
4243 }
4244
4245 qemu_display_early_init(&dpy);
4246 qemu_console_early_init();
4247
4248 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4249 #if defined(CONFIG_OPENGL)
4250 error_report("OpenGL is not supported by the display");
4251 #else
4252 error_report("OpenGL support is disabled");
4253 #endif
4254 exit(1);
4255 }
4256
4257 page_size_init();
4258 socket_init();
4259
4260 qemu_opts_foreach(qemu_find_opts("object"),
4261 user_creatable_add_opts_foreach,
4262 object_create_initial, &error_fatal);
4263
4264 qemu_opts_foreach(qemu_find_opts("chardev"),
4265 chardev_init_func, NULL, &error_fatal);
4266
4267 #ifdef CONFIG_VIRTFS
4268 qemu_opts_foreach(qemu_find_opts("fsdev"),
4269 fsdev_init_func, NULL, &error_fatal);
4270 #endif
4271
4272 if (qemu_opts_foreach(qemu_find_opts("device"),
4273 device_help_func, NULL, NULL)) {
4274 exit(0);
4275 }
4276
4277 /*
4278 * Note: we need to create block backends before
4279 * machine_set_property(), so machine properties can refer to
4280 * them.
4281 */
4282 configure_blockdev(&bdo_queue, machine_class, snapshot);
4283
4284 machine_opts = qemu_get_machine_opts();
4285 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4286 &error_fatal);
4287 current_machine->ram_size = ram_size;
4288 current_machine->maxram_size = maxram_size;
4289 current_machine->ram_slots = ram_slots;
4290
4291 configure_accelerator(current_machine, argv[0]);
4292
4293 if (!qtest_enabled() && machine_class->deprecation_reason) {
4294 error_report("Machine type '%s' is deprecated: %s",
4295 machine_class->name, machine_class->deprecation_reason);
4296 }
4297
4298 /*
4299 * Migration object can only be created after global properties
4300 * are applied correctly.
4301 */
4302 migration_object_init();
4303
4304 if (qtest_chrdev) {
4305 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4306 }
4307
4308 machine_opts = qemu_get_machine_opts();
4309 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4310 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4311 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4312 bios_name = qemu_opt_get(machine_opts, "firmware");
4313
4314 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4315 if (opts) {
4316 boot_order = qemu_opt_get(opts, "order");
4317 if (boot_order) {
4318 validate_bootdevices(boot_order, &error_fatal);
4319 }
4320
4321 boot_once = qemu_opt_get(opts, "once");
4322 if (boot_once) {
4323 validate_bootdevices(boot_once, &error_fatal);
4324 }
4325
4326 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4327 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4328 }
4329
4330 if (!boot_order) {
4331 boot_order = machine_class->default_boot_order;
4332 }
4333
4334 if (!kernel_cmdline) {
4335 kernel_cmdline = "";
4336 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4337 }
4338
4339 linux_boot = (kernel_filename != NULL);
4340
4341 if (!linux_boot && *kernel_cmdline != '\0') {
4342 error_report("-append only allowed with -kernel option");
4343 exit(1);
4344 }
4345
4346 if (!linux_boot && initrd_filename != NULL) {
4347 error_report("-initrd only allowed with -kernel option");
4348 exit(1);
4349 }
4350
4351 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4352 /* fall back to the -kernel/-append */
4353 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4354 }
4355
4356 os_set_line_buffering();
4357
4358 /* spice needs the timers to be initialized by this point */
4359 qemu_spice_init();
4360
4361 cpu_ticks_init();
4362 if (icount_opts) {
4363 if (!tcg_enabled()) {
4364 error_report("-icount is not allowed with hardware virtualization");
4365 exit(1);
4366 }
4367 configure_icount(icount_opts, &error_abort);
4368 qemu_opts_del(icount_opts);
4369 }
4370
4371 if (tcg_enabled()) {
4372 qemu_tcg_configure(accel_opts, &error_fatal);
4373 }
4374
4375 if (default_net) {
4376 QemuOptsList *net = qemu_find_opts("net");
4377 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4378 #ifdef CONFIG_SLIRP
4379 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4380 #endif
4381 }
4382
4383 if (net_init_clients(&err) < 0) {
4384 error_report_err(err);
4385 exit(1);
4386 }
4387
4388 qemu_opts_foreach(qemu_find_opts("object"),
4389 user_creatable_add_opts_foreach,
4390 object_create_delayed, &error_fatal);
4391
4392 tpm_init();
4393
4394 /* init the bluetooth world */
4395 if (foreach_device_config(DEV_BT, bt_parse))
4396 exit(1);
4397
4398 if (!xen_enabled()) {
4399 /* On 32-bit hosts, QEMU is limited by virtual address space */
4400 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4401 error_report("at most 2047 MB RAM can be simulated");
4402 exit(1);
4403 }
4404 }
4405
4406 blk_mig_init();
4407 ram_mig_init();
4408 dirty_bitmap_mig_init();
4409
4410 qemu_opts_foreach(qemu_find_opts("mon"),
4411 mon_init_func, NULL, &error_fatal);
4412
4413 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4414 exit(1);
4415 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4416 exit(1);
4417 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4418 exit(1);
4419
4420 /* If no default VGA is requested, the default is "none". */
4421 if (default_vga) {
4422 if (machine_class->default_display) {
4423 vga_model = machine_class->default_display;
4424 } else if (vga_interface_available(VGA_CIRRUS)) {
4425 vga_model = "cirrus";
4426 } else if (vga_interface_available(VGA_STD)) {
4427 vga_model = "std";
4428 }
4429 }
4430 if (vga_model) {
4431 select_vgahw(vga_model);
4432 }
4433
4434 if (watchdog) {
4435 i = select_watchdog(watchdog);
4436 if (i > 0)
4437 exit (i == 1 ? 1 : 0);
4438 }
4439
4440 /* This checkpoint is required by replay to separate prior clock
4441 reading from the other reads, because timer polling functions query
4442 clock values from the log. */
4443 replay_checkpoint(CHECKPOINT_INIT);
4444 qdev_machine_init();
4445
4446 current_machine->boot_order = boot_order;
4447
4448 /* parse features once if machine provides default cpu_type */
4449 current_machine->cpu_type = machine_class->default_cpu_type;
4450 if (cpu_model) {
4451 current_machine->cpu_type = parse_cpu_model(cpu_model);
4452 }
4453 parse_numa_opts(current_machine);
4454
4455 /* do monitor/qmp handling at preconfig state if requested */
4456 main_loop();
4457
4458 /* from here on runstate is RUN_STATE_PRELAUNCH */
4459 machine_run_board_init(current_machine);
4460
4461 realtime_init();
4462
4463 soundhw_init();
4464
4465 if (hax_enabled()) {
4466 hax_sync_vcpus();
4467 }
4468
4469 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4470 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4471
4472 /* init USB devices */
4473 if (machine_usb(current_machine)) {
4474 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4475 exit(1);
4476 }
4477
4478 /* Check if IGD GFX passthrough. */
4479 igd_gfx_passthru();
4480
4481 /* init generic devices */
4482 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4483 qemu_opts_foreach(qemu_find_opts("device"),
4484 device_init_func, NULL, &error_fatal);
4485
4486 cpu_synchronize_all_post_init();
4487
4488 rom_reset_order_override();
4489
4490 /* Did we create any drives that we failed to create a device for? */
4491 drive_check_orphaned();
4492
4493 /* Don't warn about the default network setup that you get if
4494 * no command line -net or -netdev options are specified. There
4495 * are two cases that we would otherwise complain about:
4496 * (1) board doesn't support a NIC but the implicit "-net nic"
4497 * requested one
4498 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4499 * sets up a nic that isn't connected to anything.
4500 */
4501 if (!default_net && (!qtest_enabled() || has_defaults)) {
4502 net_check_clients();
4503 }
4504
4505 if (boot_once) {
4506 qemu_boot_set(boot_once, &error_fatal);
4507 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4508 }
4509
4510 /* init local displays */
4511 ds = init_displaystate();
4512 qemu_display_init(ds, &dpy);
4513
4514 /* must be after terminal init, SDL library changes signal handlers */
4515 os_setup_signal_handling();
4516
4517 /* init remote displays */
4518 #ifdef CONFIG_VNC
4519 qemu_opts_foreach(qemu_find_opts("vnc"),
4520 vnc_init_func, NULL, &error_fatal);
4521 #endif
4522
4523 if (using_spice) {
4524 qemu_spice_display_init();
4525 }
4526
4527 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4528 exit(1);
4529 }
4530
4531 qdev_machine_creation_done();
4532
4533 /* TODO: once all bus devices are qdevified, this should be done
4534 * when bus is created by qdev.c */
4535 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4536 qemu_run_machine_init_done_notifiers();
4537
4538 if (rom_check_and_register_reset() != 0) {
4539 error_report("rom check and register reset failed");
4540 exit(1);
4541 }
4542
4543 replay_start();
4544
4545 /* This checkpoint is required by replay to separate prior clock
4546 reading from the other reads, because timer polling functions query
4547 clock values from the log. */
4548 replay_checkpoint(CHECKPOINT_RESET);
4549 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4550 register_global_state();
4551 if (loadvm) {
4552 Error *local_err = NULL;
4553 if (load_snapshot(loadvm, &local_err) < 0) {
4554 error_report_err(local_err);
4555 autostart = 0;
4556 exit(1);
4557 }
4558 }
4559 if (replay_mode != REPLAY_MODE_NONE) {
4560 replay_vmstate_init();
4561 }
4562
4563 qdev_prop_check_globals();
4564 if (vmstate_dump_file) {
4565 /* dump and exit */
4566 dump_vmstate_json_to_file(vmstate_dump_file);
4567 return 0;
4568 }
4569
4570 if (incoming) {
4571 Error *local_err = NULL;
4572 qemu_start_incoming_migration(incoming, &local_err);
4573 if (local_err) {
4574 error_reportf_err(local_err, "-incoming %s: ", incoming);
4575 exit(1);
4576 }
4577 } else if (autostart) {
4578 vm_start();
4579 }
4580
4581 accel_setup_post(current_machine);
4582 os_setup_post();
4583
4584 main_loop();
4585
4586 gdbserver_cleanup();
4587
4588 /*
4589 * cleaning up the migration object cancels any existing migration
4590 * try to do this early so that it also stops using devices.
4591 */
4592 migration_shutdown();
4593
4594 /* No more vcpu or device emulation activity beyond this point */
4595 vm_shutdown();
4596
4597 job_cancel_sync_all();
4598 bdrv_close_all();
4599
4600 res_free();
4601
4602 /* vhost-user must be cleaned up before chardevs. */
4603 tpm_cleanup();
4604 net_cleanup();
4605 audio_cleanup();
4606 monitor_cleanup();
4607 qemu_chr_cleanup();
4608 user_creatable_cleanup();
4609 /* TODO: unref root container, check all devices are ok */
4610
4611 return 0;
4612 }
AR7 emulation for QEMU