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cli: add --preconfig option
[mirror_qemu.git] / vl.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
31
32 #ifdef CONFIG_SECCOMP
33 #include <sys/prctl.h>
34 #include "sysemu/seccomp.h"
35 #endif
36
37 #ifdef CONFIG_SDL
38 #if defined(__APPLE__) || defined(main)
39 #include <SDL.h>
40 int qemu_main(int argc, char **argv, char **envp);
41 int main(int argc, char **argv)
42 {
43 return qemu_main(argc, argv, NULL);
44 }
45 #undef main
46 #define main qemu_main
47 #endif
48 #endif /* CONFIG_SDL */
49
50 #ifdef CONFIG_COCOA
51 #undef main
52 #define main qemu_main
53 #endif /* CONFIG_COCOA */
54
55
56 #include "qemu/error-report.h"
57 #include "qemu/sockets.h"
58 #include "hw/hw.h"
59 #include "hw/boards.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "hw/bt.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/smbios/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
70 #include "hw/qdev.h"
71 #include "hw/loader.h"
72 #include "monitor/qdev.h"
73 #include "sysemu/bt.h"
74 #include "net/net.h"
75 #include "net/slirp.h"
76 #include "monitor/monitor.h"
77 #include "ui/console.h"
78 #include "ui/input.h"
79 #include "sysemu/sysemu.h"
80 #include "sysemu/numa.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "chardev/char.h"
84 #include "qemu/bitmap.h"
85 #include "qemu/log.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/misc.h"
89 #include "migration/snapshot.h"
90 #include "migration/global_state.h"
91 #include "sysemu/tpm.h"
92 #include "sysemu/dma.h"
93 #include "hw/audio/soundhw.h"
94 #include "audio/audio.h"
95 #include "sysemu/cpus.h"
96 #include "migration/colo.h"
97 #include "migration/postcopy-ram.h"
98 #include "sysemu/kvm.h"
99 #include "sysemu/hax.h"
100 #include "qapi/qobject-input-visitor.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qemu/main-loop.h"
105 #ifdef CONFIG_VIRTFS
106 #include "fsdev/qemu-fsdev.h"
107 #endif
108 #include "sysemu/qtest.h"
109
110 #include "disas/disas.h"
111
112
113 #include "slirp/libslirp.h"
114
115 #include "trace-root.h"
116 #include "trace/control.h"
117 #include "qemu/queue.h"
118 #include "sysemu/arch_init.h"
119
120 #include "ui/qemu-spice.h"
121 #include "qapi/string-input-visitor.h"
122 #include "qapi/opts-visitor.h"
123 #include "qapi/clone-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "exec/semihost.h"
126 #include "crypto/init.h"
127 #include "sysemu/replay.h"
128 #include "qapi/qapi-events-run-state.h"
129 #include "qapi/qapi-visit-block-core.h"
130 #include "qapi/qapi-visit-ui.h"
131 #include "qapi/qapi-commands-block-core.h"
132 #include "qapi/qapi-commands-misc.h"
133 #include "qapi/qapi-commands-run-state.h"
134 #include "qapi/qmp/qerror.h"
135 #include "sysemu/iothread.h"
136
137 #define MAX_VIRTIO_CONSOLES 1
138
139 static const char *data_dir[16];
140 static int data_dir_idx;
141 const char *bios_name = NULL;
142 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
143 int display_opengl;
144 const char* keyboard_layout = NULL;
145 ram_addr_t ram_size;
146 const char *mem_path = NULL;
147 int mem_prealloc = 0; /* force preallocation of physical target memory */
148 bool enable_mlock = false;
149 int nb_nics;
150 NICInfo nd_table[MAX_NICS];
151 int autostart;
152 static int rtc_utc = 1;
153 static int rtc_date_offset = -1; /* -1 means no change */
154 QEMUClockType rtc_clock;
155 int vga_interface_type = VGA_NONE;
156 static DisplayOptions dpy;
157 int no_frame;
158 static int num_serial_hds = 0;
159 static Chardev **serial_hds = NULL;
160 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
161 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
162 int win2k_install_hack = 0;
163 int singlestep = 0;
164 int smp_cpus;
165 unsigned int max_cpus;
166 int smp_cores = 1;
167 int smp_threads = 1;
168 int acpi_enabled = 1;
169 int no_hpet = 0;
170 int fd_bootchk = 1;
171 static int no_reboot;
172 int no_shutdown = 0;
173 int cursor_hide = 1;
174 int graphic_rotate = 0;
175 const char *watchdog;
176 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
177 int nb_option_roms;
178 int old_param = 0;
179 const char *qemu_name;
180 int alt_grab = 0;
181 int ctrl_grab = 0;
182 unsigned int nb_prom_envs = 0;
183 const char *prom_envs[MAX_PROM_ENVS];
184 int boot_menu;
185 bool boot_strict;
186 uint8_t *boot_splash_filedata;
187 size_t boot_splash_filedata_size;
188 uint8_t qemu_extra_params_fw[2];
189
190 int icount_align_option;
191
192 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
193 * little-endian "wire format" described in the SMBIOS 2.6 specification.
194 */
195 QemuUUID qemu_uuid;
196 bool qemu_uuid_set;
197
198 static NotifierList exit_notifiers =
199 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
200
201 static NotifierList machine_init_done_notifiers =
202 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
203
204 bool xen_allowed;
205 uint32_t xen_domid;
206 enum xen_mode xen_mode = XEN_EMULATE;
207 bool xen_domid_restrict;
208
209 static int has_defaults = 1;
210 static int default_serial = 1;
211 static int default_parallel = 1;
212 static int default_virtcon = 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 = "virtio-serial-pci", .flag = &default_virtcon },
234 { .driver = "virtio-serial", .flag = &default_virtcon },
235 { .driver = "VGA", .flag = &default_vga },
236 { .driver = "isa-vga", .flag = &default_vga },
237 { .driver = "cirrus-vga", .flag = &default_vga },
238 { .driver = "isa-cirrus-vga", .flag = &default_vga },
239 { .driver = "vmware-svga", .flag = &default_vga },
240 { .driver = "qxl-vga", .flag = &default_vga },
241 { .driver = "virtio-vga", .flag = &default_vga },
242 };
243
244 static QemuOptsList qemu_rtc_opts = {
245 .name = "rtc",
246 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
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_sandbox_opts = {
263 .name = "sandbox",
264 .implied_opt_name = "enable",
265 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
266 .desc = {
267 {
268 .name = "enable",
269 .type = QEMU_OPT_BOOL,
270 },
271 {
272 .name = "obsolete",
273 .type = QEMU_OPT_STRING,
274 },
275 {
276 .name = "elevateprivileges",
277 .type = QEMU_OPT_STRING,
278 },
279 {
280 .name = "spawn",
281 .type = QEMU_OPT_STRING,
282 },
283 {
284 .name = "resourcecontrol",
285 .type = QEMU_OPT_STRING,
286 },
287 { /* end of list */ }
288 },
289 };
290
291 static QemuOptsList qemu_option_rom_opts = {
292 .name = "option-rom",
293 .implied_opt_name = "romfile",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
295 .desc = {
296 {
297 .name = "bootindex",
298 .type = QEMU_OPT_NUMBER,
299 }, {
300 .name = "romfile",
301 .type = QEMU_OPT_STRING,
302 },
303 { /* end of list */ }
304 },
305 };
306
307 static QemuOptsList qemu_machine_opts = {
308 .name = "machine",
309 .implied_opt_name = "type",
310 .merge_lists = true,
311 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
312 .desc = {
313 /*
314 * no elements => accept any
315 * sanity checking will happen later
316 * when setting machine properties
317 */
318 { }
319 },
320 };
321
322 static QemuOptsList qemu_accel_opts = {
323 .name = "accel",
324 .implied_opt_name = "accel",
325 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
326 .merge_lists = true,
327 .desc = {
328 {
329 .name = "accel",
330 .type = QEMU_OPT_STRING,
331 .help = "Select the type of accelerator",
332 },
333 {
334 .name = "thread",
335 .type = QEMU_OPT_STRING,
336 .help = "Enable/disable multi-threaded TCG",
337 },
338 { /* end of list */ }
339 },
340 };
341
342 static QemuOptsList qemu_boot_opts = {
343 .name = "boot-opts",
344 .implied_opt_name = "order",
345 .merge_lists = true,
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
347 .desc = {
348 {
349 .name = "order",
350 .type = QEMU_OPT_STRING,
351 }, {
352 .name = "once",
353 .type = QEMU_OPT_STRING,
354 }, {
355 .name = "menu",
356 .type = QEMU_OPT_BOOL,
357 }, {
358 .name = "splash",
359 .type = QEMU_OPT_STRING,
360 }, {
361 .name = "splash-time",
362 .type = QEMU_OPT_STRING,
363 }, {
364 .name = "reboot-timeout",
365 .type = QEMU_OPT_STRING,
366 }, {
367 .name = "strict",
368 .type = QEMU_OPT_BOOL,
369 },
370 { /*End of list */ }
371 },
372 };
373
374 static QemuOptsList qemu_add_fd_opts = {
375 .name = "add-fd",
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
377 .desc = {
378 {
379 .name = "fd",
380 .type = QEMU_OPT_NUMBER,
381 .help = "file descriptor of which a duplicate is added to fd set",
382 },{
383 .name = "set",
384 .type = QEMU_OPT_NUMBER,
385 .help = "ID of the fd set to add fd to",
386 },{
387 .name = "opaque",
388 .type = QEMU_OPT_STRING,
389 .help = "free-form string used to describe fd",
390 },
391 { /* end of list */ }
392 },
393 };
394
395 static QemuOptsList qemu_object_opts = {
396 .name = "object",
397 .implied_opt_name = "qom-type",
398 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
399 .desc = {
400 { }
401 },
402 };
403
404 static QemuOptsList qemu_tpmdev_opts = {
405 .name = "tpmdev",
406 .implied_opt_name = "type",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
408 .desc = {
409 /* options are defined in the TPM backends */
410 { /* end of list */ }
411 },
412 };
413
414 static QemuOptsList qemu_realtime_opts = {
415 .name = "realtime",
416 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
417 .desc = {
418 {
419 .name = "mlock",
420 .type = QEMU_OPT_BOOL,
421 },
422 { /* end of list */ }
423 },
424 };
425
426 static QemuOptsList qemu_msg_opts = {
427 .name = "msg",
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
429 .desc = {
430 {
431 .name = "timestamp",
432 .type = QEMU_OPT_BOOL,
433 },
434 { /* end of list */ }
435 },
436 };
437
438 static QemuOptsList qemu_name_opts = {
439 .name = "name",
440 .implied_opt_name = "guest",
441 .merge_lists = true,
442 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
443 .desc = {
444 {
445 .name = "guest",
446 .type = QEMU_OPT_STRING,
447 .help = "Sets the name of the guest.\n"
448 "This name will be displayed in the SDL window caption.\n"
449 "The name will also be used for the VNC server",
450 }, {
451 .name = "process",
452 .type = QEMU_OPT_STRING,
453 .help = "Sets the name of the QEMU process, as shown in top etc",
454 }, {
455 .name = "debug-threads",
456 .type = QEMU_OPT_BOOL,
457 .help = "When enabled, name the individual threads; defaults off.\n"
458 "NOTE: The thread names are for debugging and not a\n"
459 "stable API.",
460 },
461 { /* End of list */ }
462 },
463 };
464
465 static QemuOptsList qemu_mem_opts = {
466 .name = "memory",
467 .implied_opt_name = "size",
468 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
469 .merge_lists = true,
470 .desc = {
471 {
472 .name = "size",
473 .type = QEMU_OPT_SIZE,
474 },
475 {
476 .name = "slots",
477 .type = QEMU_OPT_NUMBER,
478 },
479 {
480 .name = "maxmem",
481 .type = QEMU_OPT_SIZE,
482 },
483 { /* end of list */ }
484 },
485 };
486
487 static QemuOptsList qemu_icount_opts = {
488 .name = "icount",
489 .implied_opt_name = "shift",
490 .merge_lists = true,
491 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
492 .desc = {
493 {
494 .name = "shift",
495 .type = QEMU_OPT_STRING,
496 }, {
497 .name = "align",
498 .type = QEMU_OPT_BOOL,
499 }, {
500 .name = "sleep",
501 .type = QEMU_OPT_BOOL,
502 }, {
503 .name = "rr",
504 .type = QEMU_OPT_STRING,
505 }, {
506 .name = "rrfile",
507 .type = QEMU_OPT_STRING,
508 }, {
509 .name = "rrsnapshot",
510 .type = QEMU_OPT_STRING,
511 },
512 { /* end of list */ }
513 },
514 };
515
516 static QemuOptsList qemu_semihosting_config_opts = {
517 .name = "semihosting-config",
518 .implied_opt_name = "enable",
519 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
520 .desc = {
521 {
522 .name = "enable",
523 .type = QEMU_OPT_BOOL,
524 }, {
525 .name = "target",
526 .type = QEMU_OPT_STRING,
527 }, {
528 .name = "arg",
529 .type = QEMU_OPT_STRING,
530 },
531 { /* end of list */ }
532 },
533 };
534
535 static QemuOptsList qemu_fw_cfg_opts = {
536 .name = "fw_cfg",
537 .implied_opt_name = "name",
538 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
539 .desc = {
540 {
541 .name = "name",
542 .type = QEMU_OPT_STRING,
543 .help = "Sets the fw_cfg name of the blob to be inserted",
544 }, {
545 .name = "file",
546 .type = QEMU_OPT_STRING,
547 .help = "Sets the name of the file from which\n"
548 "the fw_cfg blob will be loaded",
549 }, {
550 .name = "string",
551 .type = QEMU_OPT_STRING,
552 .help = "Sets content of the blob to be inserted from a string",
553 },
554 { /* end of list */ }
555 },
556 };
557
558 /**
559 * Get machine options
560 *
561 * Returns: machine options (never null).
562 */
563 QemuOpts *qemu_get_machine_opts(void)
564 {
565 return qemu_find_opts_singleton("machine");
566 }
567
568 const char *qemu_get_vm_name(void)
569 {
570 return qemu_name;
571 }
572
573 static void res_free(void)
574 {
575 g_free(boot_splash_filedata);
576 boot_splash_filedata = NULL;
577 }
578
579 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
580 {
581 const char *driver = qemu_opt_get(opts, "driver");
582 int i;
583
584 if (!driver)
585 return 0;
586 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
587 if (strcmp(default_list[i].driver, driver) != 0)
588 continue;
589 *(default_list[i].flag) = 0;
590 }
591 return 0;
592 }
593
594 /***********************************************************/
595 /* QEMU state */
596
597 static RunState current_run_state = RUN_STATE_PRECONFIG;
598
599 /* We use RUN_STATE__MAX but any invalid value will do */
600 static RunState vmstop_requested = RUN_STATE__MAX;
601 static QemuMutex vmstop_lock;
602
603 typedef struct {
604 RunState from;
605 RunState to;
606 } RunStateTransition;
607
608 static const RunStateTransition runstate_transitions_def[] = {
609 /* from -> to */
610 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
611 /* Early switch to inmigrate state to allow -incoming CLI option work
612 * as it used to. TODO: delay actual switching to inmigrate state to
613 * the point after machine is built and remove this hack.
614 */
615 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
616
617 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
618 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
619 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
620
621 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
622 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
623 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
624 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
625 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
626 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
627 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
628 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
629 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
630 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
631 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
632 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
633
634 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
635 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
636 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
637
638 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
639 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
640 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
641
642 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
643 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
645 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
646 { RUN_STATE_PAUSED, RUN_STATE_COLO},
647
648 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
649 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
650 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
651
652 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
653 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
654 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
655
656 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
657 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
658 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
659 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
660 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
661
662 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
663 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
664
665 { RUN_STATE_COLO, RUN_STATE_RUNNING },
666
667 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
668 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
669 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
670 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
671 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
672 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
673 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
674 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
675 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
676 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
677 { RUN_STATE_RUNNING, RUN_STATE_COLO},
678
679 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
680
681 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
682 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
683 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
684
685 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
686 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
687 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
688 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
689 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
690 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
691
692 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
693 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
694 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
695 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
696
697 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
698 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
699 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
700
701 { RUN_STATE__MAX, RUN_STATE__MAX },
702 };
703
704 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
705
706 bool runstate_check(RunState state)
707 {
708 return current_run_state == state;
709 }
710
711 bool runstate_store(char *str, size_t size)
712 {
713 const char *state = RunState_str(current_run_state);
714 size_t len = strlen(state) + 1;
715
716 if (len > size) {
717 return false;
718 }
719 memcpy(str, state, len);
720 return true;
721 }
722
723 static void runstate_init(void)
724 {
725 const RunStateTransition *p;
726
727 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
728 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
729 runstate_valid_transitions[p->from][p->to] = true;
730 }
731
732 qemu_mutex_init(&vmstop_lock);
733 }
734
735 /* This function will abort() on invalid state transitions */
736 void runstate_set(RunState new_state)
737 {
738 assert(new_state < RUN_STATE__MAX);
739
740 if (current_run_state == new_state) {
741 return;
742 }
743
744 if (!runstate_valid_transitions[current_run_state][new_state]) {
745 error_report("invalid runstate transition: '%s' -> '%s'",
746 RunState_str(current_run_state),
747 RunState_str(new_state));
748 abort();
749 }
750 trace_runstate_set(new_state);
751 current_run_state = new_state;
752 }
753
754 int runstate_is_running(void)
755 {
756 return runstate_check(RUN_STATE_RUNNING);
757 }
758
759 bool runstate_needs_reset(void)
760 {
761 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
762 runstate_check(RUN_STATE_SHUTDOWN);
763 }
764
765 StatusInfo *qmp_query_status(Error **errp)
766 {
767 StatusInfo *info = g_malloc0(sizeof(*info));
768
769 info->running = runstate_is_running();
770 info->singlestep = singlestep;
771 info->status = current_run_state;
772
773 return info;
774 }
775
776 bool qemu_vmstop_requested(RunState *r)
777 {
778 qemu_mutex_lock(&vmstop_lock);
779 *r = vmstop_requested;
780 vmstop_requested = RUN_STATE__MAX;
781 qemu_mutex_unlock(&vmstop_lock);
782 return *r < RUN_STATE__MAX;
783 }
784
785 void qemu_system_vmstop_request_prepare(void)
786 {
787 qemu_mutex_lock(&vmstop_lock);
788 }
789
790 void qemu_system_vmstop_request(RunState state)
791 {
792 vmstop_requested = state;
793 qemu_mutex_unlock(&vmstop_lock);
794 qemu_notify_event();
795 }
796
797 /***********************************************************/
798 /* real time host monotonic timer */
799
800 static time_t qemu_time(void)
801 {
802 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
803 }
804
805 /***********************************************************/
806 /* host time/date access */
807 void qemu_get_timedate(struct tm *tm, int offset)
808 {
809 time_t ti = qemu_time();
810
811 ti += offset;
812 if (rtc_date_offset == -1) {
813 if (rtc_utc)
814 gmtime_r(&ti, tm);
815 else
816 localtime_r(&ti, tm);
817 } else {
818 ti -= rtc_date_offset;
819 gmtime_r(&ti, tm);
820 }
821 }
822
823 int qemu_timedate_diff(struct tm *tm)
824 {
825 time_t seconds;
826
827 if (rtc_date_offset == -1)
828 if (rtc_utc)
829 seconds = mktimegm(tm);
830 else {
831 struct tm tmp = *tm;
832 tmp.tm_isdst = -1; /* use timezone to figure it out */
833 seconds = mktime(&tmp);
834 }
835 else
836 seconds = mktimegm(tm) + rtc_date_offset;
837
838 return seconds - qemu_time();
839 }
840
841 static void configure_rtc_date_offset(const char *startdate, int legacy)
842 {
843 time_t rtc_start_date;
844 struct tm tm;
845
846 if (!strcmp(startdate, "now") && legacy) {
847 rtc_date_offset = -1;
848 } else {
849 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
850 &tm.tm_year,
851 &tm.tm_mon,
852 &tm.tm_mday,
853 &tm.tm_hour,
854 &tm.tm_min,
855 &tm.tm_sec) == 6) {
856 /* OK */
857 } else if (sscanf(startdate, "%d-%d-%d",
858 &tm.tm_year,
859 &tm.tm_mon,
860 &tm.tm_mday) == 3) {
861 tm.tm_hour = 0;
862 tm.tm_min = 0;
863 tm.tm_sec = 0;
864 } else {
865 goto date_fail;
866 }
867 tm.tm_year -= 1900;
868 tm.tm_mon--;
869 rtc_start_date = mktimegm(&tm);
870 if (rtc_start_date == -1) {
871 date_fail:
872 error_report("invalid date format");
873 error_printf("valid formats: "
874 "'2006-06-17T16:01:21' or '2006-06-17'\n");
875 exit(1);
876 }
877 rtc_date_offset = qemu_time() - rtc_start_date;
878 }
879 }
880
881 static void configure_rtc(QemuOpts *opts)
882 {
883 const char *value;
884
885 value = qemu_opt_get(opts, "base");
886 if (value) {
887 if (!strcmp(value, "utc")) {
888 rtc_utc = 1;
889 } else if (!strcmp(value, "localtime")) {
890 Error *blocker = NULL;
891 rtc_utc = 0;
892 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
893 "-rtc base=localtime");
894 replay_add_blocker(blocker);
895 } else {
896 configure_rtc_date_offset(value, 0);
897 }
898 }
899 value = qemu_opt_get(opts, "clock");
900 if (value) {
901 if (!strcmp(value, "host")) {
902 rtc_clock = QEMU_CLOCK_HOST;
903 } else if (!strcmp(value, "rt")) {
904 rtc_clock = QEMU_CLOCK_REALTIME;
905 } else if (!strcmp(value, "vm")) {
906 rtc_clock = QEMU_CLOCK_VIRTUAL;
907 } else {
908 error_report("invalid option value '%s'", value);
909 exit(1);
910 }
911 }
912 value = qemu_opt_get(opts, "driftfix");
913 if (value) {
914 if (!strcmp(value, "slew")) {
915 static GlobalProperty slew_lost_ticks = {
916 .driver = "mc146818rtc",
917 .property = "lost_tick_policy",
918 .value = "slew",
919 };
920
921 qdev_prop_register_global(&slew_lost_ticks);
922 } else if (!strcmp(value, "none")) {
923 /* discard is default */
924 } else {
925 error_report("invalid option value '%s'", value);
926 exit(1);
927 }
928 }
929 }
930
931 /***********************************************************/
932 /* Bluetooth support */
933 static int nb_hcis;
934 static int cur_hci;
935 static struct HCIInfo *hci_table[MAX_NICS];
936
937 struct HCIInfo *qemu_next_hci(void)
938 {
939 if (cur_hci == nb_hcis)
940 return &null_hci;
941
942 return hci_table[cur_hci++];
943 }
944
945 static int bt_hci_parse(const char *str)
946 {
947 struct HCIInfo *hci;
948 bdaddr_t bdaddr;
949
950 if (nb_hcis >= MAX_NICS) {
951 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
952 return -1;
953 }
954
955 hci = hci_init(str);
956 if (!hci)
957 return -1;
958
959 bdaddr.b[0] = 0x52;
960 bdaddr.b[1] = 0x54;
961 bdaddr.b[2] = 0x00;
962 bdaddr.b[3] = 0x12;
963 bdaddr.b[4] = 0x34;
964 bdaddr.b[5] = 0x56 + nb_hcis;
965 hci->bdaddr_set(hci, bdaddr.b);
966
967 hci_table[nb_hcis++] = hci;
968
969 return 0;
970 }
971
972 static void bt_vhci_add(int vlan_id)
973 {
974 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
975
976 if (!vlan->slave)
977 warn_report("adding a VHCI to an empty scatternet %i",
978 vlan_id);
979
980 bt_vhci_init(bt_new_hci(vlan));
981 }
982
983 static struct bt_device_s *bt_device_add(const char *opt)
984 {
985 struct bt_scatternet_s *vlan;
986 int vlan_id = 0;
987 char *endp = strstr(opt, ",vlan=");
988 int len = (endp ? endp - opt : strlen(opt)) + 1;
989 char devname[10];
990
991 pstrcpy(devname, MIN(sizeof(devname), len), opt);
992
993 if (endp) {
994 vlan_id = strtol(endp + 6, &endp, 0);
995 if (*endp) {
996 error_report("unrecognised bluetooth vlan Id");
997 return 0;
998 }
999 }
1000
1001 vlan = qemu_find_bt_vlan(vlan_id);
1002
1003 if (!vlan->slave)
1004 warn_report("adding a slave device to an empty scatternet %i",
1005 vlan_id);
1006
1007 if (!strcmp(devname, "keyboard"))
1008 return bt_keyboard_init(vlan);
1009
1010 error_report("unsupported bluetooth device '%s'", devname);
1011 return 0;
1012 }
1013
1014 static int bt_parse(const char *opt)
1015 {
1016 const char *endp, *p;
1017 int vlan;
1018
1019 if (strstart(opt, "hci", &endp)) {
1020 if (!*endp || *endp == ',') {
1021 if (*endp)
1022 if (!strstart(endp, ",vlan=", 0))
1023 opt = endp + 1;
1024
1025 return bt_hci_parse(opt);
1026 }
1027 } else if (strstart(opt, "vhci", &endp)) {
1028 if (!*endp || *endp == ',') {
1029 if (*endp) {
1030 if (strstart(endp, ",vlan=", &p)) {
1031 vlan = strtol(p, (char **) &endp, 0);
1032 if (*endp) {
1033 error_report("bad scatternet '%s'", p);
1034 return 1;
1035 }
1036 } else {
1037 error_report("bad parameter '%s'", endp + 1);
1038 return 1;
1039 }
1040 } else
1041 vlan = 0;
1042
1043 bt_vhci_add(vlan);
1044 return 0;
1045 }
1046 } else if (strstart(opt, "device:", &endp))
1047 return !bt_device_add(endp);
1048
1049 error_report("bad bluetooth parameter '%s'", opt);
1050 return 1;
1051 }
1052
1053 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1054 {
1055 if (qemu_opt_get_bool(opts, "enable", false)) {
1056 #ifdef CONFIG_SECCOMP
1057 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1058 | QEMU_SECCOMP_SET_OBSOLETE;
1059 const char *value = NULL;
1060
1061 value = qemu_opt_get(opts, "obsolete");
1062 if (value) {
1063 if (g_str_equal(value, "allow")) {
1064 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1065 } else if (g_str_equal(value, "deny")) {
1066 /* this is the default option, this if is here
1067 * to provide a little bit of consistency for
1068 * the command line */
1069 } else {
1070 error_report("invalid argument for obsolete");
1071 return -1;
1072 }
1073 }
1074
1075 value = qemu_opt_get(opts, "elevateprivileges");
1076 if (value) {
1077 if (g_str_equal(value, "deny")) {
1078 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1079 } else if (g_str_equal(value, "children")) {
1080 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1081
1082 /* calling prctl directly because we're
1083 * not sure if host has CAP_SYS_ADMIN set*/
1084 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1085 error_report("failed to set no_new_privs "
1086 "aborting");
1087 return -1;
1088 }
1089 } else if (g_str_equal(value, "allow")) {
1090 /* default value */
1091 } else {
1092 error_report("invalid argument for elevateprivileges");
1093 return -1;
1094 }
1095 }
1096
1097 value = qemu_opt_get(opts, "spawn");
1098 if (value) {
1099 if (g_str_equal(value, "deny")) {
1100 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1101 } else if (g_str_equal(value, "allow")) {
1102 /* default value */
1103 } else {
1104 error_report("invalid argument for spawn");
1105 return -1;
1106 }
1107 }
1108
1109 value = qemu_opt_get(opts, "resourcecontrol");
1110 if (value) {
1111 if (g_str_equal(value, "deny")) {
1112 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1113 } else if (g_str_equal(value, "allow")) {
1114 /* default value */
1115 } else {
1116 error_report("invalid argument for resourcecontrol");
1117 return -1;
1118 }
1119 }
1120
1121 if (seccomp_start(seccomp_opts) < 0) {
1122 error_report("failed to install seccomp syscall filter "
1123 "in the kernel");
1124 return -1;
1125 }
1126 #else
1127 error_report("seccomp support is disabled");
1128 return -1;
1129 #endif
1130 }
1131
1132 return 0;
1133 }
1134
1135 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1136 {
1137 const char *proc_name;
1138
1139 if (qemu_opt_get(opts, "debug-threads")) {
1140 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1141 }
1142 qemu_name = qemu_opt_get(opts, "guest");
1143
1144 proc_name = qemu_opt_get(opts, "process");
1145 if (proc_name) {
1146 os_set_proc_name(proc_name);
1147 }
1148
1149 return 0;
1150 }
1151
1152 bool defaults_enabled(void)
1153 {
1154 return has_defaults;
1155 }
1156
1157 #ifndef _WIN32
1158 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1159 {
1160 int fd, dupfd, flags;
1161 int64_t fdset_id;
1162 const char *fd_opaque = NULL;
1163 AddfdInfo *fdinfo;
1164
1165 fd = qemu_opt_get_number(opts, "fd", -1);
1166 fdset_id = qemu_opt_get_number(opts, "set", -1);
1167 fd_opaque = qemu_opt_get(opts, "opaque");
1168
1169 if (fd < 0) {
1170 error_report("fd option is required and must be non-negative");
1171 return -1;
1172 }
1173
1174 if (fd <= STDERR_FILENO) {
1175 error_report("fd cannot be a standard I/O stream");
1176 return -1;
1177 }
1178
1179 /*
1180 * All fds inherited across exec() necessarily have FD_CLOEXEC
1181 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1182 */
1183 flags = fcntl(fd, F_GETFD);
1184 if (flags == -1 || (flags & FD_CLOEXEC)) {
1185 error_report("fd is not valid or already in use");
1186 return -1;
1187 }
1188
1189 if (fdset_id < 0) {
1190 error_report("set option is required and must be non-negative");
1191 return -1;
1192 }
1193
1194 #ifdef F_DUPFD_CLOEXEC
1195 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1196 #else
1197 dupfd = dup(fd);
1198 if (dupfd != -1) {
1199 qemu_set_cloexec(dupfd);
1200 }
1201 #endif
1202 if (dupfd == -1) {
1203 error_report("error duplicating fd: %s", strerror(errno));
1204 return -1;
1205 }
1206
1207 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1208 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1209 &error_abort);
1210 g_free(fdinfo);
1211
1212 return 0;
1213 }
1214
1215 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1216 {
1217 int fd;
1218
1219 fd = qemu_opt_get_number(opts, "fd", -1);
1220 close(fd);
1221
1222 return 0;
1223 }
1224 #endif
1225
1226 /***********************************************************/
1227 /* QEMU Block devices */
1228
1229 #define HD_OPTS "media=disk"
1230 #define CDROM_OPTS "media=cdrom"
1231 #define FD_OPTS ""
1232 #define PFLASH_OPTS ""
1233 #define MTD_OPTS ""
1234 #define SD_OPTS ""
1235
1236 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1237 {
1238 BlockInterfaceType *block_default_type = opaque;
1239
1240 return drive_new(opts, *block_default_type) == NULL;
1241 }
1242
1243 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1244 {
1245 if (qemu_opt_get(opts, "snapshot") == NULL) {
1246 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1247 }
1248 return 0;
1249 }
1250
1251 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1252 int index, const char *optstr)
1253 {
1254 QemuOpts *opts;
1255 DriveInfo *dinfo;
1256
1257 if (!enable || drive_get_by_index(type, index)) {
1258 return;
1259 }
1260
1261 opts = drive_add(type, index, NULL, optstr);
1262 if (snapshot) {
1263 drive_enable_snapshot(NULL, opts, NULL);
1264 }
1265
1266 dinfo = drive_new(opts, type);
1267 if (!dinfo) {
1268 exit(1);
1269 }
1270 dinfo->is_default = true;
1271
1272 }
1273
1274 static QemuOptsList qemu_smp_opts = {
1275 .name = "smp-opts",
1276 .implied_opt_name = "cpus",
1277 .merge_lists = true,
1278 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1279 .desc = {
1280 {
1281 .name = "cpus",
1282 .type = QEMU_OPT_NUMBER,
1283 }, {
1284 .name = "sockets",
1285 .type = QEMU_OPT_NUMBER,
1286 }, {
1287 .name = "cores",
1288 .type = QEMU_OPT_NUMBER,
1289 }, {
1290 .name = "threads",
1291 .type = QEMU_OPT_NUMBER,
1292 }, {
1293 .name = "maxcpus",
1294 .type = QEMU_OPT_NUMBER,
1295 },
1296 { /*End of list */ }
1297 },
1298 };
1299
1300 static void smp_parse(QemuOpts *opts)
1301 {
1302 if (opts) {
1303 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1304 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1305 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1306 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1307
1308 /* compute missing values, prefer sockets over cores over threads */
1309 if (cpus == 0 || sockets == 0) {
1310 sockets = sockets > 0 ? sockets : 1;
1311 cores = cores > 0 ? cores : 1;
1312 threads = threads > 0 ? threads : 1;
1313 if (cpus == 0) {
1314 cpus = cores * threads * sockets;
1315 }
1316 } else if (cores == 0) {
1317 threads = threads > 0 ? threads : 1;
1318 cores = cpus / (sockets * threads);
1319 cores = cores > 0 ? cores : 1;
1320 } else if (threads == 0) {
1321 threads = cpus / (cores * sockets);
1322 threads = threads > 0 ? threads : 1;
1323 } else if (sockets * cores * threads < cpus) {
1324 error_report("cpu topology: "
1325 "sockets (%u) * cores (%u) * threads (%u) < "
1326 "smp_cpus (%u)",
1327 sockets, cores, threads, cpus);
1328 exit(1);
1329 }
1330
1331 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1332
1333 if (max_cpus < cpus) {
1334 error_report("maxcpus must be equal to or greater than smp");
1335 exit(1);
1336 }
1337
1338 if (sockets * cores * threads > max_cpus) {
1339 error_report("cpu topology: "
1340 "sockets (%u) * cores (%u) * threads (%u) > "
1341 "maxcpus (%u)",
1342 sockets, cores, threads, max_cpus);
1343 exit(1);
1344 }
1345
1346 smp_cpus = cpus;
1347 smp_cores = cores;
1348 smp_threads = threads;
1349 }
1350
1351 if (smp_cpus > 1) {
1352 Error *blocker = NULL;
1353 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1354 replay_add_blocker(blocker);
1355 }
1356 }
1357
1358 static void realtime_init(void)
1359 {
1360 if (enable_mlock) {
1361 if (os_mlock() < 0) {
1362 error_report("locking memory failed");
1363 exit(1);
1364 }
1365 }
1366 }
1367
1368
1369 static void configure_msg(QemuOpts *opts)
1370 {
1371 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1372 }
1373
1374 /***********************************************************/
1375 /* Semihosting */
1376
1377 typedef struct SemihostingConfig {
1378 bool enabled;
1379 SemihostingTarget target;
1380 const char **argv;
1381 int argc;
1382 const char *cmdline; /* concatenated argv */
1383 } SemihostingConfig;
1384
1385 static SemihostingConfig semihosting;
1386
1387 bool semihosting_enabled(void)
1388 {
1389 return semihosting.enabled;
1390 }
1391
1392 SemihostingTarget semihosting_get_target(void)
1393 {
1394 return semihosting.target;
1395 }
1396
1397 const char *semihosting_get_arg(int i)
1398 {
1399 if (i >= semihosting.argc) {
1400 return NULL;
1401 }
1402 return semihosting.argv[i];
1403 }
1404
1405 int semihosting_get_argc(void)
1406 {
1407 return semihosting.argc;
1408 }
1409
1410 const char *semihosting_get_cmdline(void)
1411 {
1412 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1413 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1414 }
1415 return semihosting.cmdline;
1416 }
1417
1418 static int add_semihosting_arg(void *opaque,
1419 const char *name, const char *val,
1420 Error **errp)
1421 {
1422 SemihostingConfig *s = opaque;
1423 if (strcmp(name, "arg") == 0) {
1424 s->argc++;
1425 /* one extra element as g_strjoinv() expects NULL-terminated array */
1426 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1427 s->argv[s->argc - 1] = val;
1428 s->argv[s->argc] = NULL;
1429 }
1430 return 0;
1431 }
1432
1433 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1434 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1435 {
1436 char *cmd_token;
1437
1438 /* argv[0] */
1439 add_semihosting_arg(&semihosting, "arg", file, NULL);
1440
1441 /* split -append and initialize argv[1..n] */
1442 cmd_token = strtok(g_strdup(cmd), " ");
1443 while (cmd_token) {
1444 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1445 cmd_token = strtok(NULL, " ");
1446 }
1447 }
1448
1449 /* Now we still need this for compatibility with XEN. */
1450 bool has_igd_gfx_passthru;
1451 static void igd_gfx_passthru(void)
1452 {
1453 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1454 }
1455
1456 /***********************************************************/
1457 /* USB devices */
1458
1459 static int usb_device_add(const char *devname)
1460 {
1461 USBDevice *dev = NULL;
1462
1463 if (!machine_usb(current_machine)) {
1464 return -1;
1465 }
1466
1467 dev = usbdevice_create(devname);
1468 if (!dev)
1469 return -1;
1470
1471 return 0;
1472 }
1473
1474 static int usb_parse(const char *cmdline)
1475 {
1476 int r;
1477 r = usb_device_add(cmdline);
1478 if (r < 0) {
1479 error_report("could not add USB device '%s'", cmdline);
1480 }
1481 return r;
1482 }
1483
1484 /***********************************************************/
1485 /* machine registration */
1486
1487 MachineState *current_machine;
1488
1489 static MachineClass *find_machine(const char *name)
1490 {
1491 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1492 MachineClass *mc = NULL;
1493
1494 for (el = machines; el; el = el->next) {
1495 MachineClass *temp = el->data;
1496
1497 if (!strcmp(temp->name, name)) {
1498 mc = temp;
1499 break;
1500 }
1501 if (temp->alias &&
1502 !strcmp(temp->alias, name)) {
1503 mc = temp;
1504 break;
1505 }
1506 }
1507
1508 g_slist_free(machines);
1509 return mc;
1510 }
1511
1512 MachineClass *find_default_machine(void)
1513 {
1514 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1515 MachineClass *mc = NULL;
1516
1517 for (el = machines; el; el = el->next) {
1518 MachineClass *temp = el->data;
1519
1520 if (temp->is_default) {
1521 mc = temp;
1522 break;
1523 }
1524 }
1525
1526 g_slist_free(machines);
1527 return mc;
1528 }
1529
1530 MachineInfoList *qmp_query_machines(Error **errp)
1531 {
1532 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1533 MachineInfoList *mach_list = NULL;
1534
1535 for (el = machines; el; el = el->next) {
1536 MachineClass *mc = el->data;
1537 MachineInfoList *entry;
1538 MachineInfo *info;
1539
1540 info = g_malloc0(sizeof(*info));
1541 if (mc->is_default) {
1542 info->has_is_default = true;
1543 info->is_default = true;
1544 }
1545
1546 if (mc->alias) {
1547 info->has_alias = true;
1548 info->alias = g_strdup(mc->alias);
1549 }
1550
1551 info->name = g_strdup(mc->name);
1552 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1553 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1554
1555 entry = g_malloc0(sizeof(*entry));
1556 entry->value = info;
1557 entry->next = mach_list;
1558 mach_list = entry;
1559 }
1560
1561 g_slist_free(machines);
1562 return mach_list;
1563 }
1564
1565 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1566 {
1567 ObjectProperty *prop;
1568 ObjectPropertyIterator iter;
1569
1570 if (!qemu_opt_has_help_opt(opts)) {
1571 return 0;
1572 }
1573
1574 object_property_iter_init(&iter, OBJECT(machine));
1575 while ((prop = object_property_iter_next(&iter))) {
1576 if (!prop->set) {
1577 continue;
1578 }
1579
1580 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1581 prop->name, prop->type);
1582 if (prop->description) {
1583 error_printf(" (%s)\n", prop->description);
1584 } else {
1585 error_printf("\n");
1586 }
1587 }
1588
1589 return 1;
1590 }
1591
1592 /***********************************************************/
1593 /* main execution loop */
1594
1595 struct vm_change_state_entry {
1596 VMChangeStateHandler *cb;
1597 void *opaque;
1598 QLIST_ENTRY (vm_change_state_entry) entries;
1599 };
1600
1601 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1602
1603 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1604 void *opaque)
1605 {
1606 VMChangeStateEntry *e;
1607
1608 e = g_malloc0(sizeof (*e));
1609
1610 e->cb = cb;
1611 e->opaque = opaque;
1612 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1613 return e;
1614 }
1615
1616 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1617 {
1618 QLIST_REMOVE (e, entries);
1619 g_free (e);
1620 }
1621
1622 void vm_state_notify(int running, RunState state)
1623 {
1624 VMChangeStateEntry *e, *next;
1625
1626 trace_vm_state_notify(running, state);
1627
1628 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1629 e->cb(e->opaque, running, state);
1630 }
1631 }
1632
1633 static ShutdownCause reset_requested;
1634 static ShutdownCause shutdown_requested;
1635 static int shutdown_signal;
1636 static pid_t shutdown_pid;
1637 static int powerdown_requested;
1638 static int debug_requested;
1639 static int suspend_requested;
1640 static bool preconfig_exit_requested = true;
1641 static WakeupReason wakeup_reason;
1642 static NotifierList powerdown_notifiers =
1643 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1644 static NotifierList suspend_notifiers =
1645 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1646 static NotifierList wakeup_notifiers =
1647 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1648 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1649
1650 ShutdownCause qemu_shutdown_requested_get(void)
1651 {
1652 return shutdown_requested;
1653 }
1654
1655 ShutdownCause qemu_reset_requested_get(void)
1656 {
1657 return reset_requested;
1658 }
1659
1660 static int qemu_shutdown_requested(void)
1661 {
1662 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1663 }
1664
1665 static void qemu_kill_report(void)
1666 {
1667 if (!qtest_driver() && shutdown_signal) {
1668 if (shutdown_pid == 0) {
1669 /* This happens for eg ^C at the terminal, so it's worth
1670 * avoiding printing an odd message in that case.
1671 */
1672 error_report("terminating on signal %d", shutdown_signal);
1673 } else {
1674 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1675
1676 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1677 shutdown_signal, shutdown_pid,
1678 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1679 g_free(shutdown_cmd);
1680 }
1681 shutdown_signal = 0;
1682 }
1683 }
1684
1685 static ShutdownCause qemu_reset_requested(void)
1686 {
1687 ShutdownCause r = reset_requested;
1688
1689 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1690 reset_requested = SHUTDOWN_CAUSE_NONE;
1691 return r;
1692 }
1693 return SHUTDOWN_CAUSE_NONE;
1694 }
1695
1696 static int qemu_suspend_requested(void)
1697 {
1698 int r = suspend_requested;
1699 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1700 suspend_requested = 0;
1701 return r;
1702 }
1703 return false;
1704 }
1705
1706 static WakeupReason qemu_wakeup_requested(void)
1707 {
1708 return wakeup_reason;
1709 }
1710
1711 static int qemu_powerdown_requested(void)
1712 {
1713 int r = powerdown_requested;
1714 powerdown_requested = 0;
1715 return r;
1716 }
1717
1718 static int qemu_debug_requested(void)
1719 {
1720 int r = debug_requested;
1721 debug_requested = 0;
1722 return r;
1723 }
1724
1725 void qemu_exit_preconfig_request(void)
1726 {
1727 preconfig_exit_requested = true;
1728 }
1729
1730 /*
1731 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1732 */
1733 void qemu_system_reset(ShutdownCause reason)
1734 {
1735 MachineClass *mc;
1736
1737 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1738
1739 cpu_synchronize_all_states();
1740
1741 if (mc && mc->reset) {
1742 mc->reset();
1743 } else {
1744 qemu_devices_reset();
1745 }
1746 if (reason) {
1747 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1748 &error_abort);
1749 }
1750 cpu_synchronize_all_post_reset();
1751 }
1752
1753 void qemu_system_guest_panicked(GuestPanicInformation *info)
1754 {
1755 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1756
1757 if (current_cpu) {
1758 current_cpu->crash_occurred = true;
1759 }
1760 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1761 !!info, info, &error_abort);
1762 vm_stop(RUN_STATE_GUEST_PANICKED);
1763 if (!no_shutdown) {
1764 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1765 !!info, info, &error_abort);
1766 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1767 }
1768
1769 if (info) {
1770 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1771 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1772 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1773 info->u.hyper_v.arg1,
1774 info->u.hyper_v.arg2,
1775 info->u.hyper_v.arg3,
1776 info->u.hyper_v.arg4,
1777 info->u.hyper_v.arg5);
1778 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1779 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1780 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1781 info->u.s390.core,
1782 S390CrashReason_str(info->u.s390.reason),
1783 info->u.s390.psw_mask,
1784 info->u.s390.psw_addr);
1785 }
1786 qapi_free_GuestPanicInformation(info);
1787 }
1788 }
1789
1790 void qemu_system_reset_request(ShutdownCause reason)
1791 {
1792 if (no_reboot) {
1793 shutdown_requested = reason;
1794 } else {
1795 reset_requested = reason;
1796 }
1797 cpu_stop_current();
1798 qemu_notify_event();
1799 }
1800
1801 static void qemu_system_suspend(void)
1802 {
1803 pause_all_vcpus();
1804 notifier_list_notify(&suspend_notifiers, NULL);
1805 runstate_set(RUN_STATE_SUSPENDED);
1806 qapi_event_send_suspend(&error_abort);
1807 }
1808
1809 void qemu_system_suspend_request(void)
1810 {
1811 if (runstate_check(RUN_STATE_SUSPENDED)) {
1812 return;
1813 }
1814 suspend_requested = 1;
1815 cpu_stop_current();
1816 qemu_notify_event();
1817 }
1818
1819 void qemu_register_suspend_notifier(Notifier *notifier)
1820 {
1821 notifier_list_add(&suspend_notifiers, notifier);
1822 }
1823
1824 void qemu_system_wakeup_request(WakeupReason reason)
1825 {
1826 trace_system_wakeup_request(reason);
1827
1828 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1829 return;
1830 }
1831 if (!(wakeup_reason_mask & (1 << reason))) {
1832 return;
1833 }
1834 runstate_set(RUN_STATE_RUNNING);
1835 wakeup_reason = reason;
1836 qemu_notify_event();
1837 }
1838
1839 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1840 {
1841 if (enabled) {
1842 wakeup_reason_mask |= (1 << reason);
1843 } else {
1844 wakeup_reason_mask &= ~(1 << reason);
1845 }
1846 }
1847
1848 void qemu_register_wakeup_notifier(Notifier *notifier)
1849 {
1850 notifier_list_add(&wakeup_notifiers, notifier);
1851 }
1852
1853 void qemu_system_killed(int signal, pid_t pid)
1854 {
1855 shutdown_signal = signal;
1856 shutdown_pid = pid;
1857 no_shutdown = 0;
1858
1859 /* Cannot call qemu_system_shutdown_request directly because
1860 * we are in a signal handler.
1861 */
1862 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1863 qemu_notify_event();
1864 }
1865
1866 void qemu_system_shutdown_request(ShutdownCause reason)
1867 {
1868 trace_qemu_system_shutdown_request(reason);
1869 replay_shutdown_request(reason);
1870 shutdown_requested = reason;
1871 qemu_notify_event();
1872 }
1873
1874 static void qemu_system_powerdown(void)
1875 {
1876 qapi_event_send_powerdown(&error_abort);
1877 notifier_list_notify(&powerdown_notifiers, NULL);
1878 }
1879
1880 void qemu_system_powerdown_request(void)
1881 {
1882 trace_qemu_system_powerdown_request();
1883 powerdown_requested = 1;
1884 qemu_notify_event();
1885 }
1886
1887 void qemu_register_powerdown_notifier(Notifier *notifier)
1888 {
1889 notifier_list_add(&powerdown_notifiers, notifier);
1890 }
1891
1892 void qemu_system_debug_request(void)
1893 {
1894 debug_requested = 1;
1895 qemu_notify_event();
1896 }
1897
1898 static bool main_loop_should_exit(void)
1899 {
1900 RunState r;
1901 ShutdownCause request;
1902
1903 if (preconfig_exit_requested) {
1904 if (runstate_check(RUN_STATE_PRECONFIG)) {
1905 runstate_set(RUN_STATE_PRELAUNCH);
1906 }
1907 preconfig_exit_requested = false;
1908 return true;
1909 }
1910 if (qemu_debug_requested()) {
1911 vm_stop(RUN_STATE_DEBUG);
1912 }
1913 if (qemu_suspend_requested()) {
1914 qemu_system_suspend();
1915 }
1916 request = qemu_shutdown_requested();
1917 if (request) {
1918 qemu_kill_report();
1919 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1920 &error_abort);
1921 if (no_shutdown) {
1922 vm_stop(RUN_STATE_SHUTDOWN);
1923 } else {
1924 return true;
1925 }
1926 }
1927 request = qemu_reset_requested();
1928 if (request) {
1929 pause_all_vcpus();
1930 qemu_system_reset(request);
1931 resume_all_vcpus();
1932 if (!runstate_check(RUN_STATE_RUNNING) &&
1933 !runstate_check(RUN_STATE_INMIGRATE)) {
1934 runstate_set(RUN_STATE_PRELAUNCH);
1935 }
1936 }
1937 if (qemu_wakeup_requested()) {
1938 pause_all_vcpus();
1939 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1940 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1941 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1942 resume_all_vcpus();
1943 qapi_event_send_wakeup(&error_abort);
1944 }
1945 if (qemu_powerdown_requested()) {
1946 qemu_system_powerdown();
1947 }
1948 if (qemu_vmstop_requested(&r)) {
1949 vm_stop(r);
1950 }
1951 return false;
1952 }
1953
1954 static void main_loop(void)
1955 {
1956 #ifdef CONFIG_PROFILER
1957 int64_t ti;
1958 #endif
1959 do {
1960 #ifdef CONFIG_PROFILER
1961 ti = profile_getclock();
1962 #endif
1963 main_loop_wait(false);
1964 #ifdef CONFIG_PROFILER
1965 dev_time += profile_getclock() - ti;
1966 #endif
1967 } while (!main_loop_should_exit());
1968 }
1969
1970 static void version(void)
1971 {
1972 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1973 QEMU_COPYRIGHT "\n");
1974 }
1975
1976 static void help(int exitcode)
1977 {
1978 version();
1979 printf("usage: %s [options] [disk_image]\n\n"
1980 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1981 error_get_progname());
1982
1983 #define QEMU_OPTIONS_GENERATE_HELP
1984 #include "qemu-options-wrapper.h"
1985
1986 printf("\nDuring emulation, the following keys are useful:\n"
1987 "ctrl-alt-f toggle full screen\n"
1988 "ctrl-alt-n switch to virtual console 'n'\n"
1989 "ctrl-alt toggle mouse and keyboard grab\n"
1990 "\n"
1991 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1992 "\n"
1993 QEMU_HELP_BOTTOM "\n");
1994
1995 exit(exitcode);
1996 }
1997
1998 #define HAS_ARG 0x0001
1999
2000 typedef struct QEMUOption {
2001 const char *name;
2002 int flags;
2003 int index;
2004 uint32_t arch_mask;
2005 } QEMUOption;
2006
2007 static const QEMUOption qemu_options[] = {
2008 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2009 #define QEMU_OPTIONS_GENERATE_OPTIONS
2010 #include "qemu-options-wrapper.h"
2011 { NULL },
2012 };
2013
2014 typedef struct VGAInterfaceInfo {
2015 const char *opt_name; /* option name */
2016 const char *name; /* human-readable name */
2017 /* Class names indicating that support is available.
2018 * If no class is specified, the interface is always available */
2019 const char *class_names[2];
2020 } VGAInterfaceInfo;
2021
2022 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2023 [VGA_NONE] = {
2024 .opt_name = "none",
2025 },
2026 [VGA_STD] = {
2027 .opt_name = "std",
2028 .name = "standard VGA",
2029 .class_names = { "VGA", "isa-vga" },
2030 },
2031 [VGA_CIRRUS] = {
2032 .opt_name = "cirrus",
2033 .name = "Cirrus VGA",
2034 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2035 },
2036 [VGA_VMWARE] = {
2037 .opt_name = "vmware",
2038 .name = "VMWare SVGA",
2039 .class_names = { "vmware-svga" },
2040 },
2041 [VGA_VIRTIO] = {
2042 .opt_name = "virtio",
2043 .name = "Virtio VGA",
2044 .class_names = { "virtio-vga" },
2045 },
2046 [VGA_QXL] = {
2047 .opt_name = "qxl",
2048 .name = "QXL VGA",
2049 .class_names = { "qxl-vga" },
2050 },
2051 [VGA_TCX] = {
2052 .opt_name = "tcx",
2053 .name = "TCX framebuffer",
2054 .class_names = { "SUNW,tcx" },
2055 },
2056 [VGA_CG3] = {
2057 .opt_name = "cg3",
2058 .name = "CG3 framebuffer",
2059 .class_names = { "cgthree" },
2060 },
2061 [VGA_XENFB] = {
2062 .opt_name = "xenfb",
2063 },
2064 };
2065
2066 static bool vga_interface_available(VGAInterfaceType t)
2067 {
2068 VGAInterfaceInfo *ti = &vga_interfaces[t];
2069
2070 assert(t < VGA_TYPE_MAX);
2071 return !ti->class_names[0] ||
2072 object_class_by_name(ti->class_names[0]) ||
2073 object_class_by_name(ti->class_names[1]);
2074 }
2075
2076 static void select_vgahw(const char *p)
2077 {
2078 const char *opts;
2079 int t;
2080
2081 assert(vga_interface_type == VGA_NONE);
2082 for (t = 0; t < VGA_TYPE_MAX; t++) {
2083 VGAInterfaceInfo *ti = &vga_interfaces[t];
2084 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2085 if (!vga_interface_available(t)) {
2086 error_report("%s not available", ti->name);
2087 exit(1);
2088 }
2089 vga_interface_type = t;
2090 break;
2091 }
2092 }
2093 if (t == VGA_TYPE_MAX) {
2094 invalid_vga:
2095 error_report("unknown vga type: %s", p);
2096 exit(1);
2097 }
2098 while (*opts) {
2099 const char *nextopt;
2100
2101 if (strstart(opts, ",retrace=", &nextopt)) {
2102 opts = nextopt;
2103 if (strstart(opts, "dumb", &nextopt))
2104 vga_retrace_method = VGA_RETRACE_DUMB;
2105 else if (strstart(opts, "precise", &nextopt))
2106 vga_retrace_method = VGA_RETRACE_PRECISE;
2107 else goto invalid_vga;
2108 } else goto invalid_vga;
2109 opts = nextopt;
2110 }
2111 }
2112
2113 static void parse_display_qapi(const char *optarg)
2114 {
2115 Error *err = NULL;
2116 DisplayOptions *opts;
2117 Visitor *v;
2118
2119 v = qobject_input_visitor_new_str(optarg, "type", &err);
2120 if (!v) {
2121 error_report_err(err);
2122 exit(1);
2123 }
2124
2125 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2126 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2127
2128 qapi_free_DisplayOptions(opts);
2129 visit_free(v);
2130 }
2131
2132 static void parse_display(const char *p)
2133 {
2134 const char *opts;
2135
2136 if (strstart(p, "sdl", &opts)) {
2137 /*
2138 * sdl DisplayType needs hand-crafted parser instead of
2139 * parse_display_qapi() due to some options not in
2140 * DisplayOptions, specifically:
2141 * - frame
2142 * Already deprecated.
2143 * - ctrl_grab + alt_grab
2144 * Not clear yet what happens to them long-term. Should
2145 * replaced by something better or deprecated and dropped.
2146 */
2147 dpy.type = DISPLAY_TYPE_SDL;
2148 while (*opts) {
2149 const char *nextopt;
2150
2151 if (strstart(opts, ",frame=", &nextopt)) {
2152 g_printerr("The frame= sdl option is deprecated, and will be\n"
2153 "removed in a future release.\n");
2154 opts = nextopt;
2155 if (strstart(opts, "on", &nextopt)) {
2156 no_frame = 0;
2157 } else if (strstart(opts, "off", &nextopt)) {
2158 no_frame = 1;
2159 } else {
2160 goto invalid_sdl_args;
2161 }
2162 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2163 opts = nextopt;
2164 if (strstart(opts, "on", &nextopt)) {
2165 alt_grab = 1;
2166 } else if (strstart(opts, "off", &nextopt)) {
2167 alt_grab = 0;
2168 } else {
2169 goto invalid_sdl_args;
2170 }
2171 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2172 opts = nextopt;
2173 if (strstart(opts, "on", &nextopt)) {
2174 ctrl_grab = 1;
2175 } else if (strstart(opts, "off", &nextopt)) {
2176 ctrl_grab = 0;
2177 } else {
2178 goto invalid_sdl_args;
2179 }
2180 } else if (strstart(opts, ",window_close=", &nextopt)) {
2181 opts = nextopt;
2182 dpy.has_window_close = true;
2183 if (strstart(opts, "on", &nextopt)) {
2184 dpy.window_close = true;
2185 } else if (strstart(opts, "off", &nextopt)) {
2186 dpy.window_close = false;
2187 } else {
2188 goto invalid_sdl_args;
2189 }
2190 } else if (strstart(opts, ",gl=", &nextopt)) {
2191 opts = nextopt;
2192 dpy.has_gl = true;
2193 if (strstart(opts, "on", &nextopt)) {
2194 dpy.gl = DISPLAYGL_MODE_ON;
2195 } else if (strstart(opts, "core", &nextopt)) {
2196 dpy.gl = DISPLAYGL_MODE_CORE;
2197 } else if (strstart(opts, "es", &nextopt)) {
2198 dpy.gl = DISPLAYGL_MODE_ES;
2199 } else if (strstart(opts, "off", &nextopt)) {
2200 dpy.gl = DISPLAYGL_MODE_OFF;
2201 } else {
2202 goto invalid_sdl_args;
2203 }
2204 } else {
2205 invalid_sdl_args:
2206 error_report("invalid SDL option string");
2207 exit(1);
2208 }
2209 opts = nextopt;
2210 }
2211 } else if (strstart(p, "vnc", &opts)) {
2212 /*
2213 * vnc isn't a (local) DisplayType but a protocol for remote
2214 * display access.
2215 */
2216 if (*opts == '=') {
2217 vnc_parse(opts + 1, &error_fatal);
2218 } else {
2219 error_report("VNC requires a display argument vnc=<display>");
2220 exit(1);
2221 }
2222 } else {
2223 parse_display_qapi(p);
2224 }
2225 }
2226
2227 static int balloon_parse(const char *arg)
2228 {
2229 QemuOpts *opts;
2230
2231 warn_report("This option is deprecated. "
2232 "Use '--device virtio-balloon' to enable the balloon device.");
2233
2234 if (strcmp(arg, "none") == 0) {
2235 return 0;
2236 }
2237
2238 if (!strncmp(arg, "virtio", 6)) {
2239 if (arg[6] == ',') {
2240 /* have params -> parse them */
2241 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2242 false);
2243 if (!opts)
2244 return -1;
2245 } else {
2246 /* create empty opts */
2247 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2248 &error_abort);
2249 }
2250 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2251 return 0;
2252 }
2253
2254 return -1;
2255 }
2256
2257 char *qemu_find_file(int type, const char *name)
2258 {
2259 int i;
2260 const char *subdir;
2261 char *buf;
2262
2263 /* Try the name as a straight path first */
2264 if (access(name, R_OK) == 0) {
2265 trace_load_file(name, name);
2266 return g_strdup(name);
2267 }
2268
2269 switch (type) {
2270 case QEMU_FILE_TYPE_BIOS:
2271 subdir = "";
2272 break;
2273 case QEMU_FILE_TYPE_KEYMAP:
2274 subdir = "keymaps/";
2275 break;
2276 default:
2277 abort();
2278 }
2279
2280 for (i = 0; i < data_dir_idx; i++) {
2281 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2282 if (access(buf, R_OK) == 0) {
2283 trace_load_file(name, buf);
2284 return buf;
2285 }
2286 g_free(buf);
2287 }
2288 return NULL;
2289 }
2290
2291 static void qemu_add_data_dir(const char *path)
2292 {
2293 int i;
2294
2295 if (path == NULL) {
2296 return;
2297 }
2298 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2299 return;
2300 }
2301 for (i = 0; i < data_dir_idx; i++) {
2302 if (strcmp(data_dir[i], path) == 0) {
2303 return; /* duplicate */
2304 }
2305 }
2306 data_dir[data_dir_idx++] = g_strdup(path);
2307 }
2308
2309 static inline bool nonempty_str(const char *str)
2310 {
2311 return str && *str;
2312 }
2313
2314 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2315 {
2316 gchar *buf;
2317 size_t size;
2318 const char *name, *file, *str;
2319 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2320
2321 if (fw_cfg == NULL) {
2322 error_report("fw_cfg device not available");
2323 return -1;
2324 }
2325 name = qemu_opt_get(opts, "name");
2326 file = qemu_opt_get(opts, "file");
2327 str = qemu_opt_get(opts, "string");
2328
2329 /* we need name and either a file or the content string */
2330 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2331 error_report("invalid argument(s)");
2332 return -1;
2333 }
2334 if (nonempty_str(file) && nonempty_str(str)) {
2335 error_report("file and string are mutually exclusive");
2336 return -1;
2337 }
2338 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2339 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2340 return -1;
2341 }
2342 if (strncmp(name, "opt/", 4) != 0) {
2343 warn_report("externally provided fw_cfg item names "
2344 "should be prefixed with \"opt/\"");
2345 }
2346 if (nonempty_str(str)) {
2347 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2348 buf = g_memdup(str, size);
2349 } else {
2350 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2351 error_report("can't load %s", file);
2352 return -1;
2353 }
2354 }
2355 /* For legacy, keep user files in a specific global order. */
2356 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2357 fw_cfg_add_file(fw_cfg, name, buf, size);
2358 fw_cfg_reset_order_override(fw_cfg);
2359 return 0;
2360 }
2361
2362 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2363 {
2364 return qdev_device_help(opts);
2365 }
2366
2367 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2368 {
2369 Error *err = NULL;
2370 DeviceState *dev;
2371
2372 dev = qdev_device_add(opts, &err);
2373 if (!dev) {
2374 error_report_err(err);
2375 return -1;
2376 }
2377 object_unref(OBJECT(dev));
2378 return 0;
2379 }
2380
2381 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2382 {
2383 Error *local_err = NULL;
2384
2385 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2386 if (local_err) {
2387 error_report_err(local_err);
2388 return -1;
2389 }
2390 exit(0);
2391 }
2392 return 0;
2393 }
2394
2395 #ifdef CONFIG_VIRTFS
2396 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2397 {
2398 return qemu_fsdev_add(opts);
2399 }
2400 #endif
2401
2402 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2403 {
2404 Chardev *chr;
2405 const char *chardev;
2406 const char *mode;
2407 int flags;
2408
2409 mode = qemu_opt_get(opts, "mode");
2410 if (mode == NULL) {
2411 mode = "readline";
2412 }
2413 if (strcmp(mode, "readline") == 0) {
2414 flags = MONITOR_USE_READLINE;
2415 } else if (strcmp(mode, "control") == 0) {
2416 flags = MONITOR_USE_CONTROL;
2417 } else {
2418 error_report("unknown monitor mode \"%s\"", mode);
2419 exit(1);
2420 }
2421
2422 if (qemu_opt_get_bool(opts, "pretty", 0))
2423 flags |= MONITOR_USE_PRETTY;
2424
2425 /* OOB is off by default */
2426 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2427 flags |= MONITOR_USE_OOB;
2428 }
2429
2430 chardev = qemu_opt_get(opts, "chardev");
2431 chr = qemu_chr_find(chardev);
2432 if (chr == NULL) {
2433 error_report("chardev \"%s\" not found", chardev);
2434 exit(1);
2435 }
2436
2437 monitor_init(chr, flags);
2438 return 0;
2439 }
2440
2441 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2442 {
2443 static int monitor_device_index = 0;
2444 QemuOpts *opts;
2445 const char *p;
2446 char label[32];
2447
2448 if (strstart(optarg, "chardev:", &p)) {
2449 snprintf(label, sizeof(label), "%s", p);
2450 } else {
2451 snprintf(label, sizeof(label), "compat_monitor%d",
2452 monitor_device_index);
2453 opts = qemu_chr_parse_compat(label, optarg);
2454 if (!opts) {
2455 error_report("parse error: %s", optarg);
2456 exit(1);
2457 }
2458 }
2459
2460 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2461 qemu_opt_set(opts, "mode", mode, &error_abort);
2462 qemu_opt_set(opts, "chardev", label, &error_abort);
2463 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2464 monitor_device_index++;
2465 }
2466
2467 struct device_config {
2468 enum {
2469 DEV_USB, /* -usbdevice */
2470 DEV_BT, /* -bt */
2471 DEV_SERIAL, /* -serial */
2472 DEV_PARALLEL, /* -parallel */
2473 DEV_VIRTCON, /* -virtioconsole */
2474 DEV_DEBUGCON, /* -debugcon */
2475 DEV_GDB, /* -gdb, -s */
2476 DEV_SCLP, /* s390 sclp */
2477 } type;
2478 const char *cmdline;
2479 Location loc;
2480 QTAILQ_ENTRY(device_config) next;
2481 };
2482
2483 static QTAILQ_HEAD(, device_config) device_configs =
2484 QTAILQ_HEAD_INITIALIZER(device_configs);
2485
2486 static void add_device_config(int type, const char *cmdline)
2487 {
2488 struct device_config *conf;
2489
2490 conf = g_malloc0(sizeof(*conf));
2491 conf->type = type;
2492 conf->cmdline = cmdline;
2493 loc_save(&conf->loc);
2494 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2495 }
2496
2497 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2498 {
2499 struct device_config *conf;
2500 int rc;
2501
2502 QTAILQ_FOREACH(conf, &device_configs, next) {
2503 if (conf->type != type)
2504 continue;
2505 loc_push_restore(&conf->loc);
2506 rc = func(conf->cmdline);
2507 loc_pop(&conf->loc);
2508 if (rc) {
2509 return rc;
2510 }
2511 }
2512 return 0;
2513 }
2514
2515 static int serial_parse(const char *devname)
2516 {
2517 int index = num_serial_hds;
2518 char label[32];
2519
2520 if (strcmp(devname, "none") == 0)
2521 return 0;
2522 snprintf(label, sizeof(label), "serial%d", index);
2523 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2524
2525 serial_hds[index] = qemu_chr_new(label, devname);
2526 if (!serial_hds[index]) {
2527 error_report("could not connect serial device"
2528 " to character backend '%s'", devname);
2529 return -1;
2530 }
2531 num_serial_hds++;
2532 return 0;
2533 }
2534
2535 Chardev *serial_hd(int i)
2536 {
2537 assert(i >= 0);
2538 if (i < num_serial_hds) {
2539 return serial_hds[i];
2540 }
2541 return NULL;
2542 }
2543
2544 int serial_max_hds(void)
2545 {
2546 return num_serial_hds;
2547 }
2548
2549 static int parallel_parse(const char *devname)
2550 {
2551 static int index = 0;
2552 char label[32];
2553
2554 if (strcmp(devname, "none") == 0)
2555 return 0;
2556 if (index == MAX_PARALLEL_PORTS) {
2557 error_report("too many parallel ports");
2558 exit(1);
2559 }
2560 snprintf(label, sizeof(label), "parallel%d", index);
2561 parallel_hds[index] = qemu_chr_new(label, devname);
2562 if (!parallel_hds[index]) {
2563 error_report("could not connect parallel device"
2564 " to character backend '%s'", devname);
2565 return -1;
2566 }
2567 index++;
2568 return 0;
2569 }
2570
2571 static int virtcon_parse(const char *devname)
2572 {
2573 QemuOptsList *device = qemu_find_opts("device");
2574 static int index = 0;
2575 char label[32];
2576 QemuOpts *bus_opts, *dev_opts;
2577
2578 if (strcmp(devname, "none") == 0)
2579 return 0;
2580 if (index == MAX_VIRTIO_CONSOLES) {
2581 error_report("too many virtio consoles");
2582 exit(1);
2583 }
2584
2585 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2586 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2587
2588 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2589 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2590
2591 snprintf(label, sizeof(label), "virtcon%d", index);
2592 virtcon_hds[index] = qemu_chr_new(label, devname);
2593 if (!virtcon_hds[index]) {
2594 error_report("could not connect virtio console"
2595 " to character backend '%s'", devname);
2596 return -1;
2597 }
2598 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2599
2600 index++;
2601 return 0;
2602 }
2603
2604 static int debugcon_parse(const char *devname)
2605 {
2606 QemuOpts *opts;
2607
2608 if (!qemu_chr_new("debugcon", devname)) {
2609 exit(1);
2610 }
2611 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2612 if (!opts) {
2613 error_report("already have a debugcon device");
2614 exit(1);
2615 }
2616 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2617 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2618 return 0;
2619 }
2620
2621 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2622 {
2623 const MachineClass *mc1 = a, *mc2 = b;
2624 int res;
2625
2626 if (mc1->family == NULL) {
2627 if (mc2->family == NULL) {
2628 /* Compare standalone machine types against each other; they sort
2629 * in increasing order.
2630 */
2631 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2632 object_class_get_name(OBJECT_CLASS(mc2)));
2633 }
2634
2635 /* Standalone machine types sort after families. */
2636 return 1;
2637 }
2638
2639 if (mc2->family == NULL) {
2640 /* Families sort before standalone machine types. */
2641 return -1;
2642 }
2643
2644 /* Families sort between each other alphabetically increasingly. */
2645 res = strcmp(mc1->family, mc2->family);
2646 if (res != 0) {
2647 return res;
2648 }
2649
2650 /* Within the same family, machine types sort in decreasing order. */
2651 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2652 object_class_get_name(OBJECT_CLASS(mc1)));
2653 }
2654
2655 static MachineClass *machine_parse(const char *name)
2656 {
2657 MachineClass *mc = NULL;
2658 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2659
2660 if (name) {
2661 mc = find_machine(name);
2662 }
2663 if (mc) {
2664 g_slist_free(machines);
2665 return mc;
2666 }
2667 if (name && !is_help_option(name)) {
2668 error_report("unsupported machine type");
2669 error_printf("Use -machine help to list supported machines\n");
2670 } else {
2671 printf("Supported machines are:\n");
2672 machines = g_slist_sort(machines, machine_class_cmp);
2673 for (el = machines; el; el = el->next) {
2674 MachineClass *mc = el->data;
2675 if (mc->alias) {
2676 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2677 }
2678 printf("%-20s %s%s\n", mc->name, mc->desc,
2679 mc->is_default ? " (default)" : "");
2680 }
2681 }
2682
2683 g_slist_free(machines);
2684 exit(!name || !is_help_option(name));
2685 }
2686
2687 void qemu_add_exit_notifier(Notifier *notify)
2688 {
2689 notifier_list_add(&exit_notifiers, notify);
2690 }
2691
2692 void qemu_remove_exit_notifier(Notifier *notify)
2693 {
2694 notifier_remove(notify);
2695 }
2696
2697 static void qemu_run_exit_notifiers(void)
2698 {
2699 notifier_list_notify(&exit_notifiers, NULL);
2700 }
2701
2702 bool machine_init_done;
2703
2704 void qemu_add_machine_init_done_notifier(Notifier *notify)
2705 {
2706 notifier_list_add(&machine_init_done_notifiers, notify);
2707 if (machine_init_done) {
2708 notify->notify(notify, NULL);
2709 }
2710 }
2711
2712 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2713 {
2714 notifier_remove(notify);
2715 }
2716
2717 static void qemu_run_machine_init_done_notifiers(void)
2718 {
2719 machine_init_done = true;
2720 notifier_list_notify(&machine_init_done_notifiers, NULL);
2721 }
2722
2723 static const QEMUOption *lookup_opt(int argc, char **argv,
2724 const char **poptarg, int *poptind)
2725 {
2726 const QEMUOption *popt;
2727 int optind = *poptind;
2728 char *r = argv[optind];
2729 const char *optarg;
2730
2731 loc_set_cmdline(argv, optind, 1);
2732 optind++;
2733 /* Treat --foo the same as -foo. */
2734 if (r[1] == '-')
2735 r++;
2736 popt = qemu_options;
2737 for(;;) {
2738 if (!popt->name) {
2739 error_report("invalid option");
2740 exit(1);
2741 }
2742 if (!strcmp(popt->name, r + 1))
2743 break;
2744 popt++;
2745 }
2746 if (popt->flags & HAS_ARG) {
2747 if (optind >= argc) {
2748 error_report("requires an argument");
2749 exit(1);
2750 }
2751 optarg = argv[optind++];
2752 loc_set_cmdline(argv, optind - 2, 2);
2753 } else {
2754 optarg = NULL;
2755 }
2756
2757 *poptarg = optarg;
2758 *poptind = optind;
2759
2760 return popt;
2761 }
2762
2763 static MachineClass *select_machine(void)
2764 {
2765 MachineClass *machine_class = find_default_machine();
2766 const char *optarg;
2767 QemuOpts *opts;
2768 Location loc;
2769
2770 loc_push_none(&loc);
2771
2772 opts = qemu_get_machine_opts();
2773 qemu_opts_loc_restore(opts);
2774
2775 optarg = qemu_opt_get(opts, "type");
2776 if (optarg) {
2777 machine_class = machine_parse(optarg);
2778 }
2779
2780 if (!machine_class) {
2781 error_report("No machine specified, and there is no default");
2782 error_printf("Use -machine help to list supported machines\n");
2783 exit(1);
2784 }
2785
2786 loc_pop(&loc);
2787 return machine_class;
2788 }
2789
2790 static int machine_set_property(void *opaque,
2791 const char *name, const char *value,
2792 Error **errp)
2793 {
2794 Object *obj = OBJECT(opaque);
2795 Error *local_err = NULL;
2796 char *p, *qom_name;
2797
2798 if (strcmp(name, "type") == 0) {
2799 return 0;
2800 }
2801
2802 qom_name = g_strdup(name);
2803 for (p = qom_name; *p; p++) {
2804 if (*p == '_') {
2805 *p = '-';
2806 }
2807 }
2808
2809 object_property_parse(obj, value, qom_name, &local_err);
2810 g_free(qom_name);
2811
2812 if (local_err) {
2813 error_report_err(local_err);
2814 return -1;
2815 }
2816
2817 return 0;
2818 }
2819
2820
2821 /*
2822 * Initial object creation happens before all other
2823 * QEMU data types are created. The majority of objects
2824 * can be created at this point. The rng-egd object
2825 * cannot be created here, as it depends on the chardev
2826 * already existing.
2827 */
2828 static bool object_create_initial(const char *type)
2829 {
2830 if (g_str_equal(type, "rng-egd") ||
2831 g_str_has_prefix(type, "pr-manager-")) {
2832 return false;
2833 }
2834
2835 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2836 if (g_str_equal(type, "cryptodev-vhost-user")) {
2837 return false;
2838 }
2839 #endif
2840
2841 /*
2842 * return false for concrete netfilters since
2843 * they depend on netdevs already existing
2844 */
2845 if (g_str_equal(type, "filter-buffer") ||
2846 g_str_equal(type, "filter-dump") ||
2847 g_str_equal(type, "filter-mirror") ||
2848 g_str_equal(type, "filter-redirector") ||
2849 g_str_equal(type, "colo-compare") ||
2850 g_str_equal(type, "filter-rewriter") ||
2851 g_str_equal(type, "filter-replay")) {
2852 return false;
2853 }
2854
2855 /* Memory allocation by backends needs to be done
2856 * after configure_accelerator() (due to the tcg_enabled()
2857 * checks at memory_region_init_*()).
2858 *
2859 * Also, allocation of large amounts of memory may delay
2860 * chardev initialization for too long, and trigger timeouts
2861 * on software that waits for a monitor socket to be created
2862 * (e.g. libvirt).
2863 */
2864 if (g_str_has_prefix(type, "memory-backend-")) {
2865 return false;
2866 }
2867
2868 return true;
2869 }
2870
2871
2872 /*
2873 * The remainder of object creation happens after the
2874 * creation of chardev, fsdev, net clients and device data types.
2875 */
2876 static bool object_create_delayed(const char *type)
2877 {
2878 return !object_create_initial(type);
2879 }
2880
2881
2882 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2883 MachineClass *mc)
2884 {
2885 uint64_t sz;
2886 const char *mem_str;
2887 const ram_addr_t default_ram_size = mc->default_ram_size;
2888 QemuOpts *opts = qemu_find_opts_singleton("memory");
2889 Location loc;
2890
2891 loc_push_none(&loc);
2892 qemu_opts_loc_restore(opts);
2893
2894 sz = 0;
2895 mem_str = qemu_opt_get(opts, "size");
2896 if (mem_str) {
2897 if (!*mem_str) {
2898 error_report("missing 'size' option value");
2899 exit(EXIT_FAILURE);
2900 }
2901
2902 sz = qemu_opt_get_size(opts, "size", ram_size);
2903
2904 /* Fix up legacy suffix-less format */
2905 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2906 uint64_t overflow_check = sz;
2907
2908 sz <<= 20;
2909 if ((sz >> 20) != overflow_check) {
2910 error_report("too large 'size' option value");
2911 exit(EXIT_FAILURE);
2912 }
2913 }
2914 }
2915
2916 /* backward compatibility behaviour for case "-m 0" */
2917 if (sz == 0) {
2918 sz = default_ram_size;
2919 }
2920
2921 sz = QEMU_ALIGN_UP(sz, 8192);
2922 ram_size = sz;
2923 if (ram_size != sz) {
2924 error_report("ram size too large");
2925 exit(EXIT_FAILURE);
2926 }
2927
2928 /* store value for the future use */
2929 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2930 *maxram_size = ram_size;
2931
2932 if (qemu_opt_get(opts, "maxmem")) {
2933 uint64_t slots;
2934
2935 sz = qemu_opt_get_size(opts, "maxmem", 0);
2936 slots = qemu_opt_get_number(opts, "slots", 0);
2937 if (sz < ram_size) {
2938 error_report("invalid value of -m option maxmem: "
2939 "maximum memory size (0x%" PRIx64 ") must be at least "
2940 "the initial memory size (0x" RAM_ADDR_FMT ")",
2941 sz, ram_size);
2942 exit(EXIT_FAILURE);
2943 } else if (slots && sz == ram_size) {
2944 error_report("invalid value of -m option maxmem: "
2945 "memory slots were specified but maximum memory size "
2946 "(0x%" PRIx64 ") is equal to the initial memory size "
2947 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2948 exit(EXIT_FAILURE);
2949 }
2950
2951 *maxram_size = sz;
2952 *ram_slots = slots;
2953 } else if (qemu_opt_get(opts, "slots")) {
2954 error_report("invalid -m option value: missing 'maxmem' option");
2955 exit(EXIT_FAILURE);
2956 }
2957
2958 loc_pop(&loc);
2959 }
2960
2961 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2962 {
2963 GlobalProperty *g;
2964
2965 g = g_malloc0(sizeof(*g));
2966 g->driver = qemu_opt_get(opts, "driver");
2967 g->property = qemu_opt_get(opts, "property");
2968 g->value = qemu_opt_get(opts, "value");
2969 g->user_provided = true;
2970 g->errp = &error_fatal;
2971 qdev_prop_register_global(g);
2972 return 0;
2973 }
2974
2975 static int qemu_read_default_config_file(void)
2976 {
2977 int ret;
2978
2979 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2980 if (ret < 0 && ret != -ENOENT) {
2981 return ret;
2982 }
2983
2984 return 0;
2985 }
2986
2987 static void user_register_global_props(void)
2988 {
2989 qemu_opts_foreach(qemu_find_opts("global"),
2990 global_init_func, NULL, NULL);
2991 }
2992
2993 /*
2994 * Note: we should see that these properties are actually having a
2995 * priority: accel < machine < user. This means e.g. when user
2996 * specifies something in "-global", it'll always be used with highest
2997 * priority than either machine/accelerator compat properties.
2998 */
2999 static void register_global_properties(MachineState *ms)
3000 {
3001 accel_register_compat_props(ms->accelerator);
3002 machine_register_compat_props(ms);
3003 user_register_global_props();
3004 }
3005
3006 int main(int argc, char **argv, char **envp)
3007 {
3008 int i;
3009 int snapshot, linux_boot;
3010 const char *initrd_filename;
3011 const char *kernel_filename, *kernel_cmdline;
3012 const char *boot_order = NULL;
3013 const char *boot_once = NULL;
3014 DisplayState *ds;
3015 QemuOpts *opts, *machine_opts;
3016 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3017 QemuOptsList *olist;
3018 int optind;
3019 const char *optarg;
3020 const char *loadvm = NULL;
3021 MachineClass *machine_class;
3022 const char *cpu_model;
3023 const char *vga_model = NULL;
3024 const char *qtest_chrdev = NULL;
3025 const char *qtest_log = NULL;
3026 const char *pid_file = NULL;
3027 const char *incoming = NULL;
3028 bool userconfig = true;
3029 bool nographic = false;
3030 int display_remote = 0;
3031 const char *log_mask = NULL;
3032 const char *log_file = NULL;
3033 char *trace_file = NULL;
3034 ram_addr_t maxram_size;
3035 uint64_t ram_slots = 0;
3036 FILE *vmstate_dump_file = NULL;
3037 Error *main_loop_err = NULL;
3038 Error *err = NULL;
3039 bool list_data_dirs = false;
3040 char *dir, **dirs;
3041 typedef struct BlockdevOptions_queue {
3042 BlockdevOptions *bdo;
3043 Location loc;
3044 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3045 } BlockdevOptions_queue;
3046 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3047 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3048
3049 module_call_init(MODULE_INIT_TRACE);
3050
3051 qemu_init_cpu_list();
3052 qemu_init_cpu_loop();
3053
3054 qemu_mutex_lock_iothread();
3055
3056 atexit(qemu_run_exit_notifiers);
3057 error_set_progname(argv[0]);
3058 qemu_init_exec_dir(argv[0]);
3059
3060 module_call_init(MODULE_INIT_QOM);
3061
3062 qemu_add_opts(&qemu_drive_opts);
3063 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3064 qemu_add_drive_opts(&qemu_common_drive_opts);
3065 qemu_add_drive_opts(&qemu_drive_opts);
3066 qemu_add_drive_opts(&bdrv_runtime_opts);
3067 qemu_add_opts(&qemu_chardev_opts);
3068 qemu_add_opts(&qemu_device_opts);
3069 qemu_add_opts(&qemu_netdev_opts);
3070 qemu_add_opts(&qemu_nic_opts);
3071 qemu_add_opts(&qemu_net_opts);
3072 qemu_add_opts(&qemu_rtc_opts);
3073 qemu_add_opts(&qemu_global_opts);
3074 qemu_add_opts(&qemu_mon_opts);
3075 qemu_add_opts(&qemu_trace_opts);
3076 qemu_add_opts(&qemu_option_rom_opts);
3077 qemu_add_opts(&qemu_machine_opts);
3078 qemu_add_opts(&qemu_accel_opts);
3079 qemu_add_opts(&qemu_mem_opts);
3080 qemu_add_opts(&qemu_smp_opts);
3081 qemu_add_opts(&qemu_boot_opts);
3082 qemu_add_opts(&qemu_sandbox_opts);
3083 qemu_add_opts(&qemu_add_fd_opts);
3084 qemu_add_opts(&qemu_object_opts);
3085 qemu_add_opts(&qemu_tpmdev_opts);
3086 qemu_add_opts(&qemu_realtime_opts);
3087 qemu_add_opts(&qemu_msg_opts);
3088 qemu_add_opts(&qemu_name_opts);
3089 qemu_add_opts(&qemu_numa_opts);
3090 qemu_add_opts(&qemu_icount_opts);
3091 qemu_add_opts(&qemu_semihosting_config_opts);
3092 qemu_add_opts(&qemu_fw_cfg_opts);
3093 module_call_init(MODULE_INIT_OPTS);
3094
3095 runstate_init();
3096 postcopy_infrastructure_init();
3097
3098 if (qcrypto_init(&err) < 0) {
3099 error_reportf_err(err, "cannot initialize crypto: ");
3100 exit(1);
3101 }
3102 rtc_clock = QEMU_CLOCK_HOST;
3103
3104 QLIST_INIT (&vm_change_state_head);
3105 os_setup_early_signal_handling();
3106
3107 cpu_model = NULL;
3108 snapshot = 0;
3109
3110 nb_nics = 0;
3111
3112 bdrv_init_with_whitelist();
3113
3114 autostart = 1;
3115
3116 /* first pass of option parsing */
3117 optind = 1;
3118 while (optind < argc) {
3119 if (argv[optind][0] != '-') {
3120 /* disk image */
3121 optind++;
3122 } else {
3123 const QEMUOption *popt;
3124
3125 popt = lookup_opt(argc, argv, &optarg, &optind);
3126 switch (popt->index) {
3127 case QEMU_OPTION_nodefconfig:
3128 case QEMU_OPTION_nouserconfig:
3129 userconfig = false;
3130 break;
3131 }
3132 }
3133 }
3134
3135 if (userconfig) {
3136 if (qemu_read_default_config_file() < 0) {
3137 exit(1);
3138 }
3139 }
3140
3141 /* second pass of option parsing */
3142 optind = 1;
3143 for(;;) {
3144 if (optind >= argc)
3145 break;
3146 if (argv[optind][0] != '-') {
3147 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3148 } else {
3149 const QEMUOption *popt;
3150
3151 popt = lookup_opt(argc, argv, &optarg, &optind);
3152 if (!(popt->arch_mask & arch_type)) {
3153 error_report("Option not supported for this target");
3154 exit(1);
3155 }
3156 switch(popt->index) {
3157 case QEMU_OPTION_cpu:
3158 /* hw initialization will check this */
3159 cpu_model = optarg;
3160 break;
3161 case QEMU_OPTION_hda:
3162 case QEMU_OPTION_hdb:
3163 case QEMU_OPTION_hdc:
3164 case QEMU_OPTION_hdd:
3165 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3166 HD_OPTS);
3167 break;
3168 case QEMU_OPTION_blockdev:
3169 {
3170 Visitor *v;
3171 BlockdevOptions_queue *bdo;
3172
3173 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3174 if (!v) {
3175 error_report_err(err);
3176 exit(1);
3177 }
3178
3179 bdo = g_new(BlockdevOptions_queue, 1);
3180 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3181 &error_fatal);
3182 visit_free(v);
3183 loc_save(&bdo->loc);
3184 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3185 break;
3186 }
3187 case QEMU_OPTION_drive:
3188 if (drive_def(optarg) == NULL) {
3189 exit(1);
3190 }
3191 break;
3192 case QEMU_OPTION_set:
3193 if (qemu_set_option(optarg) != 0)
3194 exit(1);
3195 break;
3196 case QEMU_OPTION_global:
3197 if (qemu_global_option(optarg) != 0)
3198 exit(1);
3199 break;
3200 case QEMU_OPTION_mtdblock:
3201 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3202 break;
3203 case QEMU_OPTION_sd:
3204 drive_add(IF_SD, -1, optarg, SD_OPTS);
3205 break;
3206 case QEMU_OPTION_pflash:
3207 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3208 break;
3209 case QEMU_OPTION_snapshot:
3210 snapshot = 1;
3211 break;
3212 case QEMU_OPTION_numa:
3213 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3214 optarg, true);
3215 if (!opts) {
3216 exit(1);
3217 }
3218 break;
3219 case QEMU_OPTION_display:
3220 parse_display(optarg);
3221 break;
3222 case QEMU_OPTION_nographic:
3223 olist = qemu_find_opts("machine");
3224 qemu_opts_parse_noisily(olist, "graphics=off", false);
3225 nographic = true;
3226 dpy.type = DISPLAY_TYPE_NONE;
3227 break;
3228 case QEMU_OPTION_curses:
3229 #ifdef CONFIG_CURSES
3230 dpy.type = DISPLAY_TYPE_CURSES;
3231 #else
3232 error_report("curses support is disabled");
3233 exit(1);
3234 #endif
3235 break;
3236 case QEMU_OPTION_portrait:
3237 graphic_rotate = 90;
3238 break;
3239 case QEMU_OPTION_rotate:
3240 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3241 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3242 graphic_rotate != 180 && graphic_rotate != 270) {
3243 error_report("only 90, 180, 270 deg rotation is available");
3244 exit(1);
3245 }
3246 break;
3247 case QEMU_OPTION_kernel:
3248 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3249 &error_abort);
3250 break;
3251 case QEMU_OPTION_initrd:
3252 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3253 &error_abort);
3254 break;
3255 case QEMU_OPTION_append:
3256 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3257 &error_abort);
3258 break;
3259 case QEMU_OPTION_dtb:
3260 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3261 &error_abort);
3262 break;
3263 case QEMU_OPTION_cdrom:
3264 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3265 break;
3266 case QEMU_OPTION_boot:
3267 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3268 optarg, true);
3269 if (!opts) {
3270 exit(1);
3271 }
3272 break;
3273 case QEMU_OPTION_fda:
3274 case QEMU_OPTION_fdb:
3275 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3276 optarg, FD_OPTS);
3277 break;
3278 case QEMU_OPTION_no_fd_bootchk:
3279 fd_bootchk = 0;
3280 break;
3281 case QEMU_OPTION_netdev:
3282 default_net = 0;
3283 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3284 exit(1);
3285 }
3286 break;
3287 case QEMU_OPTION_nic:
3288 default_net = 0;
3289 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3290 exit(1);
3291 }
3292 break;
3293 case QEMU_OPTION_net:
3294 default_net = 0;
3295 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3296 exit(1);
3297 }
3298 break;
3299 #ifdef CONFIG_LIBISCSI
3300 case QEMU_OPTION_iscsi:
3301 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3302 optarg, false);
3303 if (!opts) {
3304 exit(1);
3305 }
3306 break;
3307 #endif
3308 #ifdef CONFIG_SLIRP
3309 case QEMU_OPTION_tftp:
3310 error_report("The -tftp option is deprecated. "
3311 "Please use '-netdev user,tftp=...' instead.");
3312 legacy_tftp_prefix = optarg;
3313 break;
3314 case QEMU_OPTION_bootp:
3315 error_report("The -bootp option is deprecated. "
3316 "Please use '-netdev user,bootfile=...' instead.");
3317 legacy_bootp_filename = optarg;
3318 break;
3319 case QEMU_OPTION_redir:
3320 error_report("The -redir option is deprecated. "
3321 "Please use '-netdev user,hostfwd=...' instead.");
3322 if (net_slirp_redir(optarg) < 0)
3323 exit(1);
3324 break;
3325 #endif
3326 case QEMU_OPTION_bt:
3327 add_device_config(DEV_BT, optarg);
3328 break;
3329 case QEMU_OPTION_audio_help:
3330 AUD_help ();
3331 exit (0);
3332 break;
3333 case QEMU_OPTION_soundhw:
3334 select_soundhw (optarg);
3335 break;
3336 case QEMU_OPTION_h:
3337 help(0);
3338 break;
3339 case QEMU_OPTION_version:
3340 version();
3341 exit(0);
3342 break;
3343 case QEMU_OPTION_m:
3344 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3345 optarg, true);
3346 if (!opts) {
3347 exit(EXIT_FAILURE);
3348 }
3349 break;
3350 #ifdef CONFIG_TPM
3351 case QEMU_OPTION_tpmdev:
3352 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3353 exit(1);
3354 }
3355 break;
3356 #endif
3357 case QEMU_OPTION_mempath:
3358 mem_path = optarg;
3359 break;
3360 case QEMU_OPTION_mem_prealloc:
3361 mem_prealloc = 1;
3362 break;
3363 case QEMU_OPTION_d:
3364 log_mask = optarg;
3365 break;
3366 case QEMU_OPTION_D:
3367 log_file = optarg;
3368 break;
3369 case QEMU_OPTION_DFILTER:
3370 qemu_set_dfilter_ranges(optarg, &error_fatal);
3371 break;
3372 case QEMU_OPTION_s:
3373 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3374 break;
3375 case QEMU_OPTION_gdb:
3376 add_device_config(DEV_GDB, optarg);
3377 break;
3378 case QEMU_OPTION_L:
3379 if (is_help_option(optarg)) {
3380 list_data_dirs = true;
3381 } else {
3382 qemu_add_data_dir(optarg);
3383 }
3384 break;
3385 case QEMU_OPTION_bios:
3386 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3387 &error_abort);
3388 break;
3389 case QEMU_OPTION_singlestep:
3390 singlestep = 1;
3391 break;
3392 case QEMU_OPTION_S:
3393 autostart = 0;
3394 break;
3395 case QEMU_OPTION_k:
3396 keyboard_layout = optarg;
3397 break;
3398 case QEMU_OPTION_localtime:
3399 rtc_utc = 0;
3400 warn_report("This option is deprecated, "
3401 "use '-rtc base=localtime' instead.");
3402 break;
3403 case QEMU_OPTION_vga:
3404 vga_model = optarg;
3405 default_vga = 0;
3406 break;
3407 case QEMU_OPTION_g:
3408 {
3409 const char *p;
3410 int w, h, depth;
3411 p = optarg;
3412 w = strtol(p, (char **)&p, 10);
3413 if (w <= 0) {
3414 graphic_error:
3415 error_report("invalid resolution or depth");
3416 exit(1);
3417 }
3418 if (*p != 'x')
3419 goto graphic_error;
3420 p++;
3421 h = strtol(p, (char **)&p, 10);
3422 if (h <= 0)
3423 goto graphic_error;
3424 if (*p == 'x') {
3425 p++;
3426 depth = strtol(p, (char **)&p, 10);
3427 if (depth != 8 && depth != 15 && depth != 16 &&
3428 depth != 24 && depth != 32)
3429 goto graphic_error;
3430 } else if (*p == '\0') {
3431 depth = graphic_depth;
3432 } else {
3433 goto graphic_error;
3434 }
3435
3436 graphic_width = w;
3437 graphic_height = h;
3438 graphic_depth = depth;
3439 }
3440 break;
3441 case QEMU_OPTION_echr:
3442 {
3443 char *r;
3444 term_escape_char = strtol(optarg, &r, 0);
3445 if (r == optarg)
3446 printf("Bad argument to echr\n");
3447 break;
3448 }
3449 case QEMU_OPTION_monitor:
3450 default_monitor = 0;
3451 if (strncmp(optarg, "none", 4)) {
3452 monitor_parse(optarg, "readline", false);
3453 }
3454 break;
3455 case QEMU_OPTION_qmp:
3456 monitor_parse(optarg, "control", false);
3457 default_monitor = 0;
3458 break;
3459 case QEMU_OPTION_qmp_pretty:
3460 monitor_parse(optarg, "control", true);
3461 default_monitor = 0;
3462 break;
3463 case QEMU_OPTION_mon:
3464 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3465 true);
3466 if (!opts) {
3467 exit(1);
3468 }
3469 default_monitor = 0;
3470 break;
3471 case QEMU_OPTION_chardev:
3472 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3473 optarg, true);
3474 if (!opts) {
3475 exit(1);
3476 }
3477 break;
3478 case QEMU_OPTION_fsdev:
3479 olist = qemu_find_opts("fsdev");
3480 if (!olist) {
3481 error_report("fsdev support is disabled");
3482 exit(1);
3483 }
3484 opts = qemu_opts_parse_noisily(olist, optarg, true);
3485 if (!opts) {
3486 exit(1);
3487 }
3488 break;
3489 case QEMU_OPTION_virtfs: {
3490 QemuOpts *fsdev;
3491 QemuOpts *device;
3492 const char *writeout, *sock_fd, *socket, *path, *security_model;
3493
3494 olist = qemu_find_opts("virtfs");
3495 if (!olist) {
3496 error_report("virtfs support is disabled");
3497 exit(1);
3498 }
3499 opts = qemu_opts_parse_noisily(olist, optarg, true);
3500 if (!opts) {
3501 exit(1);
3502 }
3503
3504 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3505 qemu_opt_get(opts, "mount_tag") == NULL) {
3506 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3507 exit(1);
3508 }
3509 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3510 qemu_opts_id(opts) ?:
3511 qemu_opt_get(opts, "mount_tag"),
3512 1, NULL);
3513 if (!fsdev) {
3514 error_report("duplicate or invalid fsdev id: %s",
3515 qemu_opt_get(opts, "mount_tag"));
3516 exit(1);
3517 }
3518
3519 writeout = qemu_opt_get(opts, "writeout");
3520 if (writeout) {
3521 #ifdef CONFIG_SYNC_FILE_RANGE
3522 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3523 #else
3524 error_report("writeout=immediate not supported "
3525 "on this platform");
3526 exit(1);
3527 #endif
3528 }
3529 qemu_opt_set(fsdev, "fsdriver",
3530 qemu_opt_get(opts, "fsdriver"), &error_abort);
3531 path = qemu_opt_get(opts, "path");
3532 if (path) {
3533 qemu_opt_set(fsdev, "path", path, &error_abort);
3534 }
3535 security_model = qemu_opt_get(opts, "security_model");
3536 if (security_model) {
3537 qemu_opt_set(fsdev, "security_model", security_model,
3538 &error_abort);
3539 }
3540 socket = qemu_opt_get(opts, "socket");
3541 if (socket) {
3542 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3543 }
3544 sock_fd = qemu_opt_get(opts, "sock_fd");
3545 if (sock_fd) {
3546 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3547 }
3548
3549 qemu_opt_set_bool(fsdev, "readonly",
3550 qemu_opt_get_bool(opts, "readonly", 0),
3551 &error_abort);
3552 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3553 &error_abort);
3554 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3555 qemu_opt_set(device, "fsdev",
3556 qemu_opts_id(fsdev), &error_abort);
3557 qemu_opt_set(device, "mount_tag",
3558 qemu_opt_get(opts, "mount_tag"), &error_abort);
3559 break;
3560 }
3561 case QEMU_OPTION_virtfs_synth: {
3562 QemuOpts *fsdev;
3563 QemuOpts *device;
3564
3565 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3566 1, NULL);
3567 if (!fsdev) {
3568 error_report("duplicate option: %s", "virtfs_synth");
3569 exit(1);
3570 }
3571 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3572
3573 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3574 &error_abort);
3575 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3576 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3577 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3578 break;
3579 }
3580 case QEMU_OPTION_serial:
3581 add_device_config(DEV_SERIAL, optarg);
3582 default_serial = 0;
3583 if (strncmp(optarg, "mon:", 4) == 0) {
3584 default_monitor = 0;
3585 }
3586 break;
3587 case QEMU_OPTION_watchdog:
3588 if (watchdog) {
3589 error_report("only one watchdog option may be given");
3590 return 1;
3591 }
3592 watchdog = optarg;
3593 break;
3594 case QEMU_OPTION_watchdog_action:
3595 if (select_watchdog_action(optarg) == -1) {
3596 error_report("unknown -watchdog-action parameter");
3597 exit(1);
3598 }
3599 break;
3600 case QEMU_OPTION_virtiocon:
3601 warn_report("This option is deprecated, "
3602 "use '-device virtconsole' instead");
3603 add_device_config(DEV_VIRTCON, optarg);
3604 default_virtcon = 0;
3605 if (strncmp(optarg, "mon:", 4) == 0) {
3606 default_monitor = 0;
3607 }
3608 break;
3609 case QEMU_OPTION_parallel:
3610 add_device_config(DEV_PARALLEL, optarg);
3611 default_parallel = 0;
3612 if (strncmp(optarg, "mon:", 4) == 0) {
3613 default_monitor = 0;
3614 }
3615 break;
3616 case QEMU_OPTION_debugcon:
3617 add_device_config(DEV_DEBUGCON, optarg);
3618 break;
3619 case QEMU_OPTION_loadvm:
3620 loadvm = optarg;
3621 break;
3622 case QEMU_OPTION_full_screen:
3623 dpy.has_full_screen = true;
3624 dpy.full_screen = true;
3625 break;
3626 case QEMU_OPTION_no_frame:
3627 g_printerr("The -no-frame switch is deprecated, and will be\n"
3628 "removed in a future release.\n");
3629 no_frame = 1;
3630 break;
3631 case QEMU_OPTION_alt_grab:
3632 alt_grab = 1;
3633 break;
3634 case QEMU_OPTION_ctrl_grab:
3635 ctrl_grab = 1;
3636 break;
3637 case QEMU_OPTION_no_quit:
3638 dpy.has_window_close = true;
3639 dpy.window_close = false;
3640 break;
3641 case QEMU_OPTION_sdl:
3642 #ifdef CONFIG_SDL
3643 dpy.type = DISPLAY_TYPE_SDL;
3644 break;
3645 #else
3646 error_report("SDL support is disabled");
3647 exit(1);
3648 #endif
3649 case QEMU_OPTION_pidfile:
3650 pid_file = optarg;
3651 break;
3652 case QEMU_OPTION_win2k_hack:
3653 win2k_install_hack = 1;
3654 break;
3655 case QEMU_OPTION_rtc_td_hack: {
3656 static GlobalProperty slew_lost_ticks = {
3657 .driver = "mc146818rtc",
3658 .property = "lost_tick_policy",
3659 .value = "slew",
3660 };
3661
3662 qdev_prop_register_global(&slew_lost_ticks);
3663 warn_report("This option is deprecated, "
3664 "use '-rtc driftfix=slew' instead.");
3665 break;
3666 }
3667 case QEMU_OPTION_acpitable:
3668 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3669 optarg, true);
3670 if (!opts) {
3671 exit(1);
3672 }
3673 acpi_table_add(opts, &error_fatal);
3674 break;
3675 case QEMU_OPTION_smbios:
3676 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3677 optarg, false);
3678 if (!opts) {
3679 exit(1);
3680 }
3681 smbios_entry_add(opts, &error_fatal);
3682 break;
3683 case QEMU_OPTION_fwcfg:
3684 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3685 optarg, true);
3686 if (opts == NULL) {
3687 exit(1);
3688 }
3689 break;
3690 case QEMU_OPTION_preconfig:
3691 preconfig_exit_requested = false;
3692 break;
3693 case QEMU_OPTION_enable_kvm:
3694 olist = qemu_find_opts("machine");
3695 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3696 break;
3697 case QEMU_OPTION_enable_hax:
3698 olist = qemu_find_opts("machine");
3699 qemu_opts_parse_noisily(olist, "accel=hax", false);
3700 break;
3701 case QEMU_OPTION_M:
3702 case QEMU_OPTION_machine:
3703 olist = qemu_find_opts("machine");
3704 opts = qemu_opts_parse_noisily(olist, optarg, true);
3705 if (!opts) {
3706 exit(1);
3707 }
3708 break;
3709 case QEMU_OPTION_no_kvm:
3710 olist = qemu_find_opts("machine");
3711 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3712 break;
3713 case QEMU_OPTION_accel:
3714 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3715 optarg, true);
3716 optarg = qemu_opt_get(accel_opts, "accel");
3717 if (!optarg || is_help_option(optarg)) {
3718 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3719 exit(0);
3720 }
3721 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3722 false, &error_abort);
3723 qemu_opt_set(opts, "accel", optarg, &error_abort);
3724 break;
3725 case QEMU_OPTION_usb:
3726 olist = qemu_find_opts("machine");
3727 qemu_opts_parse_noisily(olist, "usb=on", false);
3728 break;
3729 case QEMU_OPTION_usbdevice:
3730 error_report("'-usbdevice' is deprecated, please use "
3731 "'-device usb-...' instead");
3732 olist = qemu_find_opts("machine");
3733 qemu_opts_parse_noisily(olist, "usb=on", false);
3734 add_device_config(DEV_USB, optarg);
3735 break;
3736 case QEMU_OPTION_device:
3737 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3738 optarg, true)) {
3739 exit(1);
3740 }
3741 break;
3742 case QEMU_OPTION_smp:
3743 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3744 optarg, true)) {
3745 exit(1);
3746 }
3747 break;
3748 case QEMU_OPTION_vnc:
3749 vnc_parse(optarg, &error_fatal);
3750 break;
3751 case QEMU_OPTION_no_acpi:
3752 acpi_enabled = 0;
3753 break;
3754 case QEMU_OPTION_no_hpet:
3755 no_hpet = 1;
3756 break;
3757 case QEMU_OPTION_balloon:
3758 if (balloon_parse(optarg) < 0) {
3759 error_report("unknown -balloon argument %s", optarg);
3760 exit(1);
3761 }
3762 break;
3763 case QEMU_OPTION_no_reboot:
3764 no_reboot = 1;
3765 break;
3766 case QEMU_OPTION_no_shutdown:
3767 no_shutdown = 1;
3768 break;
3769 case QEMU_OPTION_show_cursor:
3770 cursor_hide = 0;
3771 break;
3772 case QEMU_OPTION_uuid:
3773 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3774 error_report("failed to parse UUID string: wrong format");
3775 exit(1);
3776 }
3777 qemu_uuid_set = true;
3778 break;
3779 case QEMU_OPTION_option_rom:
3780 if (nb_option_roms >= MAX_OPTION_ROMS) {
3781 error_report("too many option ROMs");
3782 exit(1);
3783 }
3784 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3785 optarg, true);
3786 if (!opts) {
3787 exit(1);
3788 }
3789 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3790 option_rom[nb_option_roms].bootindex =
3791 qemu_opt_get_number(opts, "bootindex", -1);
3792 if (!option_rom[nb_option_roms].name) {
3793 error_report("Option ROM file is not specified");
3794 exit(1);
3795 }
3796 nb_option_roms++;
3797 break;
3798 case QEMU_OPTION_semihosting:
3799 semihosting.enabled = true;
3800 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3801 break;
3802 case QEMU_OPTION_semihosting_config:
3803 semihosting.enabled = true;
3804 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3805 optarg, false);
3806 if (opts != NULL) {
3807 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3808 true);
3809 const char *target = qemu_opt_get(opts, "target");
3810 if (target != NULL) {
3811 if (strcmp("native", target) == 0) {
3812 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3813 } else if (strcmp("gdb", target) == 0) {
3814 semihosting.target = SEMIHOSTING_TARGET_GDB;
3815 } else if (strcmp("auto", target) == 0) {
3816 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3817 } else {
3818 error_report("unsupported semihosting-config %s",
3819 optarg);
3820 exit(1);
3821 }
3822 } else {
3823 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3824 }
3825 /* Set semihosting argument count and vector */
3826 qemu_opt_foreach(opts, add_semihosting_arg,
3827 &semihosting, NULL);
3828 } else {
3829 error_report("unsupported semihosting-config %s", optarg);
3830 exit(1);
3831 }
3832 break;
3833 case QEMU_OPTION_name:
3834 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3835 optarg, true);
3836 if (!opts) {
3837 exit(1);
3838 }
3839 break;
3840 case QEMU_OPTION_prom_env:
3841 if (nb_prom_envs >= MAX_PROM_ENVS) {
3842 error_report("too many prom variables");
3843 exit(1);
3844 }
3845 prom_envs[nb_prom_envs] = optarg;
3846 nb_prom_envs++;
3847 break;
3848 case QEMU_OPTION_old_param:
3849 old_param = 1;
3850 break;
3851 case QEMU_OPTION_clock:
3852 /* Clock options no longer exist. Keep this option for
3853 * backward compatibility.
3854 */
3855 break;
3856 case QEMU_OPTION_startdate:
3857 warn_report("This option is deprecated, use '-rtc base=' instead.");
3858 configure_rtc_date_offset(optarg, 1);
3859 break;
3860 case QEMU_OPTION_rtc:
3861 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3862 false);
3863 if (!opts) {
3864 exit(1);
3865 }
3866 configure_rtc(opts);
3867 break;
3868 case QEMU_OPTION_tb_size:
3869 #ifndef CONFIG_TCG
3870 error_report("TCG is disabled");
3871 exit(1);
3872 #endif
3873 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3874 error_report("Invalid argument to -tb-size");
3875 exit(1);
3876 }
3877 break;
3878 case QEMU_OPTION_icount:
3879 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3880 optarg, true);
3881 if (!icount_opts) {
3882 exit(1);
3883 }
3884 break;
3885 case QEMU_OPTION_incoming:
3886 if (!incoming) {
3887 runstate_set(RUN_STATE_INMIGRATE);
3888 }
3889 incoming = optarg;
3890 break;
3891 case QEMU_OPTION_only_migratable:
3892 /*
3893 * TODO: we can remove this option one day, and we
3894 * should all use:
3895 *
3896 * "-global migration.only-migratable=true"
3897 */
3898 qemu_global_option("migration.only-migratable=true");
3899 break;
3900 case QEMU_OPTION_nodefaults:
3901 has_defaults = 0;
3902 break;
3903 case QEMU_OPTION_xen_domid:
3904 if (!(xen_available())) {
3905 error_report("Option not supported for this target");
3906 exit(1);
3907 }
3908 xen_domid = atoi(optarg);
3909 break;
3910 case QEMU_OPTION_xen_create:
3911 if (!(xen_available())) {
3912 error_report("Option not supported for this target");
3913 exit(1);
3914 }
3915 xen_mode = XEN_CREATE;
3916 break;
3917 case QEMU_OPTION_xen_attach:
3918 if (!(xen_available())) {
3919 error_report("Option not supported for this target");
3920 exit(1);
3921 }
3922 xen_mode = XEN_ATTACH;
3923 break;
3924 case QEMU_OPTION_xen_domid_restrict:
3925 if (!(xen_available())) {
3926 error_report("Option not supported for this target");
3927 exit(1);
3928 }
3929 xen_domid_restrict = true;
3930 break;
3931 case QEMU_OPTION_trace:
3932 g_free(trace_file);
3933 trace_file = trace_opt_parse(optarg);
3934 break;
3935 case QEMU_OPTION_readconfig:
3936 {
3937 int ret = qemu_read_config_file(optarg);
3938 if (ret < 0) {
3939 error_report("read config %s: %s", optarg,
3940 strerror(-ret));
3941 exit(1);
3942 }
3943 break;
3944 }
3945 case QEMU_OPTION_spice:
3946 olist = qemu_find_opts("spice");
3947 if (!olist) {
3948 error_report("spice support is disabled");
3949 exit(1);
3950 }
3951 opts = qemu_opts_parse_noisily(olist, optarg, false);
3952 if (!opts) {
3953 exit(1);
3954 }
3955 display_remote++;
3956 break;
3957 case QEMU_OPTION_writeconfig:
3958 {
3959 FILE *fp;
3960 if (strcmp(optarg, "-") == 0) {
3961 fp = stdout;
3962 } else {
3963 fp = fopen(optarg, "w");
3964 if (fp == NULL) {
3965 error_report("open %s: %s", optarg,
3966 strerror(errno));
3967 exit(1);
3968 }
3969 }
3970 qemu_config_write(fp);
3971 if (fp != stdout) {
3972 fclose(fp);
3973 }
3974 break;
3975 }
3976 case QEMU_OPTION_qtest:
3977 qtest_chrdev = optarg;
3978 break;
3979 case QEMU_OPTION_qtest_log:
3980 qtest_log = optarg;
3981 break;
3982 case QEMU_OPTION_sandbox:
3983 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3984 optarg, true);
3985 if (!opts) {
3986 exit(1);
3987 }
3988 break;
3989 case QEMU_OPTION_add_fd:
3990 #ifndef _WIN32
3991 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3992 optarg, false);
3993 if (!opts) {
3994 exit(1);
3995 }
3996 #else
3997 error_report("File descriptor passing is disabled on this "
3998 "platform");
3999 exit(1);
4000 #endif
4001 break;
4002 case QEMU_OPTION_object:
4003 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4004 optarg, true);
4005 if (!opts) {
4006 exit(1);
4007 }
4008 break;
4009 case QEMU_OPTION_realtime:
4010 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4011 optarg, false);
4012 if (!opts) {
4013 exit(1);
4014 }
4015 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4016 break;
4017 case QEMU_OPTION_msg:
4018 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4019 false);
4020 if (!opts) {
4021 exit(1);
4022 }
4023 configure_msg(opts);
4024 break;
4025 case QEMU_OPTION_dump_vmstate:
4026 if (vmstate_dump_file) {
4027 error_report("only one '-dump-vmstate' "
4028 "option may be given");
4029 exit(1);
4030 }
4031 vmstate_dump_file = fopen(optarg, "w");
4032 if (vmstate_dump_file == NULL) {
4033 error_report("open %s: %s", optarg, strerror(errno));
4034 exit(1);
4035 }
4036 break;
4037 case QEMU_OPTION_nodefconfig:
4038 case QEMU_OPTION_nouserconfig:
4039 /* Nothing to be parsed here. Especially, do not error out below. */
4040 break;
4041 default:
4042 if (os_parse_cmd_args(popt->index, optarg)) {
4043 error_report("Option not supported in this build");
4044 exit(1);
4045 }
4046 }
4047 }
4048 }
4049 /*
4050 * Clear error location left behind by the loop.
4051 * Best done right after the loop. Do not insert code here!
4052 */
4053 loc_set_none();
4054
4055 replay_configure(icount_opts);
4056
4057 if (incoming && !preconfig_exit_requested) {
4058 error_report("'preconfig' and 'incoming' options are "
4059 "mutually exclusive");
4060 exit(EXIT_FAILURE);
4061 }
4062
4063 machine_class = select_machine();
4064
4065 set_memory_options(&ram_slots, &maxram_size, machine_class);
4066
4067 os_daemonize();
4068 rcu_disable_atfork();
4069
4070 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4071 error_report("could not acquire pid file: %s", strerror(errno));
4072 exit(1);
4073 }
4074
4075 if (qemu_init_main_loop(&main_loop_err)) {
4076 error_report_err(main_loop_err);
4077 exit(1);
4078 }
4079
4080 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4081 parse_sandbox, NULL, NULL)) {
4082 exit(1);
4083 }
4084
4085 if (qemu_opts_foreach(qemu_find_opts("name"),
4086 parse_name, NULL, NULL)) {
4087 exit(1);
4088 }
4089
4090 #ifndef _WIN32
4091 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4092 parse_add_fd, NULL, NULL)) {
4093 exit(1);
4094 }
4095
4096 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4097 cleanup_add_fd, NULL, NULL)) {
4098 exit(1);
4099 }
4100 #endif
4101
4102 current_machine = MACHINE(object_new(object_class_get_name(
4103 OBJECT_CLASS(machine_class))));
4104 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4105 exit(0);
4106 }
4107 object_property_add_child(object_get_root(), "machine",
4108 OBJECT(current_machine), &error_abort);
4109
4110 if (machine_class->minimum_page_bits) {
4111 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4112 /* This would be a board error: specifying a minimum smaller than
4113 * a target's compile-time fixed setting.
4114 */
4115 g_assert_not_reached();
4116 }
4117 }
4118
4119 cpu_exec_init_all();
4120
4121 if (machine_class->hw_version) {
4122 qemu_set_hw_version(machine_class->hw_version);
4123 }
4124
4125 if (cpu_model && is_help_option(cpu_model)) {
4126 list_cpus(stdout, &fprintf, cpu_model);
4127 exit(0);
4128 }
4129
4130 if (!trace_init_backends()) {
4131 exit(1);
4132 }
4133 trace_init_file(trace_file);
4134
4135 /* Open the logfile at this point and set the log mask if necessary.
4136 */
4137 if (log_file) {
4138 qemu_set_log_filename(log_file, &error_fatal);
4139 }
4140
4141 if (log_mask) {
4142 int mask;
4143 mask = qemu_str_to_log_mask(log_mask);
4144 if (!mask) {
4145 qemu_print_log_usage(stdout);
4146 exit(1);
4147 }
4148 qemu_set_log(mask);
4149 } else {
4150 qemu_set_log(0);
4151 }
4152
4153 /* add configured firmware directories */
4154 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4155 for (i = 0; dirs[i] != NULL; i++) {
4156 qemu_add_data_dir(dirs[i]);
4157 }
4158 g_strfreev(dirs);
4159
4160 /* try to find datadir relative to the executable path */
4161 dir = os_find_datadir();
4162 qemu_add_data_dir(dir);
4163 g_free(dir);
4164
4165 /* add the datadir specified when building */
4166 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4167
4168 /* -L help lists the data directories and exits. */
4169 if (list_data_dirs) {
4170 for (i = 0; i < data_dir_idx; i++) {
4171 printf("%s\n", data_dir[i]);
4172 }
4173 exit(0);
4174 }
4175
4176 /* machine_class: default to UP */
4177 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4178 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4179 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4180
4181 /* default to machine_class->default_cpus */
4182 smp_cpus = machine_class->default_cpus;
4183 max_cpus = machine_class->default_cpus;
4184
4185 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4186
4187 /* sanity-check smp_cpus and max_cpus against machine_class */
4188 if (smp_cpus < machine_class->min_cpus) {
4189 error_report("Invalid SMP CPUs %d. The min CPUs "
4190 "supported by machine '%s' is %d", smp_cpus,
4191 machine_class->name, machine_class->min_cpus);
4192 exit(1);
4193 }
4194 if (max_cpus > machine_class->max_cpus) {
4195 error_report("Invalid SMP CPUs %d. The max CPUs "
4196 "supported by machine '%s' is %d", max_cpus,
4197 machine_class->name, machine_class->max_cpus);
4198 exit(1);
4199 }
4200
4201 /*
4202 * Get the default machine options from the machine if it is not already
4203 * specified either by the configuration file or by the command line.
4204 */
4205 if (machine_class->default_machine_opts) {
4206 qemu_opts_set_defaults(qemu_find_opts("machine"),
4207 machine_class->default_machine_opts, 0);
4208 }
4209
4210 qemu_opts_foreach(qemu_find_opts("device"),
4211 default_driver_check, NULL, NULL);
4212 qemu_opts_foreach(qemu_find_opts("global"),
4213 default_driver_check, NULL, NULL);
4214
4215 if (!vga_model && !default_vga) {
4216 vga_interface_type = VGA_DEVICE;
4217 }
4218 if (!has_defaults || machine_class->no_serial) {
4219 default_serial = 0;
4220 }
4221 if (!has_defaults || machine_class->no_parallel) {
4222 default_parallel = 0;
4223 }
4224 if (!has_defaults || !machine_class->use_virtcon) {
4225 default_virtcon = 0;
4226 }
4227 if (!has_defaults || machine_class->no_floppy) {
4228 default_floppy = 0;
4229 }
4230 if (!has_defaults || machine_class->no_cdrom) {
4231 default_cdrom = 0;
4232 }
4233 if (!has_defaults || machine_class->no_sdcard) {
4234 default_sdcard = 0;
4235 }
4236 if (!has_defaults) {
4237 default_monitor = 0;
4238 default_net = 0;
4239 default_vga = 0;
4240 }
4241
4242 if (is_daemonized()) {
4243 /* According to documentation and historically, -nographic redirects
4244 * serial port, parallel port and monitor to stdio, which does not work
4245 * with -daemonize. We can redirect these to null instead, but since
4246 * -nographic is legacy, let's just error out.
4247 * We disallow -nographic only if all other ports are not redirected
4248 * explicitly, to not break existing legacy setups which uses
4249 * -nographic _and_ redirects all ports explicitly - this is valid
4250 * usage, -nographic is just a no-op in this case.
4251 */
4252 if (nographic
4253 && (default_parallel || default_serial
4254 || default_monitor || default_virtcon)) {
4255 error_report("-nographic cannot be used with -daemonize");
4256 exit(1);
4257 }
4258 #ifdef CONFIG_CURSES
4259 if (dpy.type == DISPLAY_TYPE_CURSES) {
4260 error_report("curses display cannot be used with -daemonize");
4261 exit(1);
4262 }
4263 #endif
4264 }
4265
4266 if (nographic) {
4267 if (default_parallel)
4268 add_device_config(DEV_PARALLEL, "null");
4269 if (default_serial && default_monitor) {
4270 add_device_config(DEV_SERIAL, "mon:stdio");
4271 } else if (default_virtcon && default_monitor) {
4272 add_device_config(DEV_VIRTCON, "mon:stdio");
4273 } else {
4274 if (default_serial)
4275 add_device_config(DEV_SERIAL, "stdio");
4276 if (default_virtcon)
4277 add_device_config(DEV_VIRTCON, "stdio");
4278 if (default_monitor)
4279 monitor_parse("stdio", "readline", false);
4280 }
4281 } else {
4282 if (default_serial)
4283 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4284 if (default_parallel)
4285 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4286 if (default_monitor)
4287 monitor_parse("vc:80Cx24C", "readline", false);
4288 if (default_virtcon)
4289 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4290 }
4291
4292 #if defined(CONFIG_VNC)
4293 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4294 display_remote++;
4295 }
4296 #endif
4297 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4298 if (!qemu_display_find_default(&dpy)) {
4299 dpy.type = DISPLAY_TYPE_NONE;
4300 #if defined(CONFIG_VNC)
4301 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4302 #endif
4303 }
4304 }
4305 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4306 dpy.type = DISPLAY_TYPE_NONE;
4307 }
4308
4309 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4310 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4311 "for SDL, ignoring option");
4312 }
4313 if (dpy.has_window_close &&
4314 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4315 error_report("-no-quit is only valid for GTK and SDL, "
4316 "ignoring option");
4317 }
4318
4319 qemu_display_early_init(&dpy);
4320 qemu_console_early_init();
4321
4322 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4323 #if defined(CONFIG_OPENGL)
4324 error_report("OpenGL is not supported by the display");
4325 #else
4326 error_report("OpenGL support is disabled");
4327 #endif
4328 exit(1);
4329 }
4330
4331 page_size_init();
4332 socket_init();
4333
4334 if (qemu_opts_foreach(qemu_find_opts("object"),
4335 user_creatable_add_opts_foreach,
4336 object_create_initial, NULL)) {
4337 exit(1);
4338 }
4339
4340 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4341 chardev_init_func, NULL, NULL)) {
4342 exit(1);
4343 }
4344
4345 #ifdef CONFIG_VIRTFS
4346 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4347 fsdev_init_func, NULL, NULL)) {
4348 exit(1);
4349 }
4350 #endif
4351
4352 if (qemu_opts_foreach(qemu_find_opts("device"),
4353 device_help_func, NULL, NULL)) {
4354 exit(0);
4355 }
4356
4357 machine_opts = qemu_get_machine_opts();
4358 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4359 NULL)) {
4360 object_unref(OBJECT(current_machine));
4361 exit(1);
4362 }
4363
4364 configure_accelerator(current_machine);
4365
4366 /*
4367 * Register all the global properties, including accel properties,
4368 * machine properties, and user-specified ones.
4369 */
4370 register_global_properties(current_machine);
4371
4372 /*
4373 * Migration object can only be created after global properties
4374 * are applied correctly.
4375 */
4376 migration_object_init();
4377
4378 if (qtest_chrdev) {
4379 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4380 }
4381
4382 machine_opts = qemu_get_machine_opts();
4383 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4384 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4385 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4386 bios_name = qemu_opt_get(machine_opts, "firmware");
4387
4388 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4389 if (opts) {
4390 boot_order = qemu_opt_get(opts, "order");
4391 if (boot_order) {
4392 validate_bootdevices(boot_order, &error_fatal);
4393 }
4394
4395 boot_once = qemu_opt_get(opts, "once");
4396 if (boot_once) {
4397 validate_bootdevices(boot_once, &error_fatal);
4398 }
4399
4400 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4401 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4402 }
4403
4404 if (!boot_order) {
4405 boot_order = machine_class->default_boot_order;
4406 }
4407
4408 if (!kernel_cmdline) {
4409 kernel_cmdline = "";
4410 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4411 }
4412
4413 linux_boot = (kernel_filename != NULL);
4414
4415 if (!linux_boot && *kernel_cmdline != '\0') {
4416 error_report("-append only allowed with -kernel option");
4417 exit(1);
4418 }
4419
4420 if (!linux_boot && initrd_filename != NULL) {
4421 error_report("-initrd only allowed with -kernel option");
4422 exit(1);
4423 }
4424
4425 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4426 /* fall back to the -kernel/-append */
4427 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4428 }
4429
4430 os_set_line_buffering();
4431
4432 /* spice needs the timers to be initialized by this point */
4433 qemu_spice_init();
4434
4435 cpu_ticks_init();
4436 if (icount_opts) {
4437 if (!tcg_enabled()) {
4438 error_report("-icount is not allowed with hardware virtualization");
4439 exit(1);
4440 }
4441 configure_icount(icount_opts, &error_abort);
4442 qemu_opts_del(icount_opts);
4443 }
4444
4445 if (tcg_enabled()) {
4446 qemu_tcg_configure(accel_opts, &error_fatal);
4447 }
4448
4449 if (default_net) {
4450 QemuOptsList *net = qemu_find_opts("net");
4451 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4452 #ifdef CONFIG_SLIRP
4453 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4454 #endif
4455 }
4456
4457 colo_info_init();
4458
4459 if (net_init_clients(&err) < 0) {
4460 error_report_err(err);
4461 exit(1);
4462 }
4463
4464 if (qemu_opts_foreach(qemu_find_opts("object"),
4465 user_creatable_add_opts_foreach,
4466 object_create_delayed, NULL)) {
4467 exit(1);
4468 }
4469
4470 if (tpm_init() < 0) {
4471 exit(1);
4472 }
4473
4474 /* init the bluetooth world */
4475 if (foreach_device_config(DEV_BT, bt_parse))
4476 exit(1);
4477
4478 if (!xen_enabled()) {
4479 /* On 32-bit hosts, QEMU is limited by virtual address space */
4480 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4481 error_report("at most 2047 MB RAM can be simulated");
4482 exit(1);
4483 }
4484 }
4485
4486 blk_mig_init();
4487 ram_mig_init();
4488 dirty_bitmap_mig_init();
4489
4490 /* If the currently selected machine wishes to override the units-per-bus
4491 * property of its default HBA interface type, do so now. */
4492 if (machine_class->units_per_default_bus) {
4493 override_max_devs(machine_class->block_default_type,
4494 machine_class->units_per_default_bus);
4495 }
4496
4497 /* open the virtual block devices */
4498 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4499 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4500
4501 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4502 loc_push_restore(&bdo->loc);
4503 qmp_blockdev_add(bdo->bdo, &error_fatal);
4504 loc_pop(&bdo->loc);
4505 qapi_free_BlockdevOptions(bdo->bdo);
4506 g_free(bdo);
4507 }
4508 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4509 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4510 NULL, NULL);
4511 }
4512 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4513 &machine_class->block_default_type, NULL)) {
4514 exit(1);
4515 }
4516
4517 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4518 CDROM_OPTS);
4519 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4520 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4521
4522 /*
4523 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4524 * depends on configure_accelerator() above.
4525 */
4526 monitor_init_globals();
4527
4528 if (qemu_opts_foreach(qemu_find_opts("mon"),
4529 mon_init_func, NULL, NULL)) {
4530 exit(1);
4531 }
4532
4533 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4534 exit(1);
4535 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4536 exit(1);
4537 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4538 exit(1);
4539 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4540 exit(1);
4541
4542 /* If no default VGA is requested, the default is "none". */
4543 if (default_vga) {
4544 if (machine_class->default_display) {
4545 vga_model = machine_class->default_display;
4546 } else if (vga_interface_available(VGA_CIRRUS)) {
4547 vga_model = "cirrus";
4548 } else if (vga_interface_available(VGA_STD)) {
4549 vga_model = "std";
4550 }
4551 }
4552 if (vga_model) {
4553 select_vgahw(vga_model);
4554 }
4555
4556 if (watchdog) {
4557 i = select_watchdog(watchdog);
4558 if (i > 0)
4559 exit (i == 1 ? 1 : 0);
4560 }
4561
4562 /* This checkpoint is required by replay to separate prior clock
4563 reading from the other reads, because timer polling functions query
4564 clock values from the log. */
4565 replay_checkpoint(CHECKPOINT_INIT);
4566 qdev_machine_init();
4567
4568 current_machine->ram_size = ram_size;
4569 current_machine->maxram_size = maxram_size;
4570 current_machine->ram_slots = ram_slots;
4571 current_machine->boot_order = boot_order;
4572
4573 /* parse features once if machine provides default cpu_type */
4574 current_machine->cpu_type = machine_class->default_cpu_type;
4575 if (cpu_model) {
4576 current_machine->cpu_type = parse_cpu_model(cpu_model);
4577 }
4578 parse_numa_opts(current_machine);
4579
4580 /* do monitor/qmp handling at preconfig state if requested */
4581 main_loop();
4582
4583 /* from here on runstate is RUN_STATE_PRELAUNCH */
4584 machine_run_board_init(current_machine);
4585
4586 realtime_init();
4587
4588 soundhw_init();
4589
4590 if (hax_enabled()) {
4591 hax_sync_vcpus();
4592 }
4593
4594 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4595 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4596 exit(1);
4597 }
4598
4599 /* init USB devices */
4600 if (machine_usb(current_machine)) {
4601 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4602 exit(1);
4603 }
4604
4605 /* Check if IGD GFX passthrough. */
4606 igd_gfx_passthru();
4607
4608 /* init generic devices */
4609 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4610 if (qemu_opts_foreach(qemu_find_opts("device"),
4611 device_init_func, NULL, NULL)) {
4612 exit(1);
4613 }
4614
4615 cpu_synchronize_all_post_init();
4616
4617 rom_reset_order_override();
4618
4619 /* Did we create any drives that we failed to create a device for? */
4620 drive_check_orphaned();
4621
4622 /* Don't warn about the default network setup that you get if
4623 * no command line -net or -netdev options are specified. There
4624 * are two cases that we would otherwise complain about:
4625 * (1) board doesn't support a NIC but the implicit "-net nic"
4626 * requested one
4627 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4628 * sets up a nic that isn't connected to anything.
4629 */
4630 if (!default_net) {
4631 net_check_clients();
4632 }
4633
4634
4635 if (boot_once) {
4636 qemu_boot_set(boot_once, &error_fatal);
4637 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4638 }
4639
4640 /* init local displays */
4641 ds = init_displaystate();
4642 qemu_display_init(ds, &dpy);
4643
4644 /* must be after terminal init, SDL library changes signal handlers */
4645 os_setup_signal_handling();
4646
4647 /* init remote displays */
4648 #ifdef CONFIG_VNC
4649 qemu_opts_foreach(qemu_find_opts("vnc"),
4650 vnc_init_func, NULL, NULL);
4651 #endif
4652
4653 if (using_spice) {
4654 qemu_spice_display_init();
4655 }
4656
4657 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4658 exit(1);
4659 }
4660
4661 qdev_machine_creation_done();
4662
4663 /* TODO: once all bus devices are qdevified, this should be done
4664 * when bus is created by qdev.c */
4665 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4666 qemu_run_machine_init_done_notifiers();
4667
4668 if (rom_check_and_register_reset() != 0) {
4669 error_report("rom check and register reset failed");
4670 exit(1);
4671 }
4672
4673 replay_start();
4674
4675 /* This checkpoint is required by replay to separate prior clock
4676 reading from the other reads, because timer polling functions query
4677 clock values from the log. */
4678 replay_checkpoint(CHECKPOINT_RESET);
4679 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4680 register_global_state();
4681 if (replay_mode != REPLAY_MODE_NONE) {
4682 replay_vmstate_init();
4683 } else if (loadvm) {
4684 Error *local_err = NULL;
4685 if (load_snapshot(loadvm, &local_err) < 0) {
4686 error_report_err(local_err);
4687 autostart = 0;
4688 }
4689 }
4690
4691 qdev_prop_check_globals();
4692 if (vmstate_dump_file) {
4693 /* dump and exit */
4694 dump_vmstate_json_to_file(vmstate_dump_file);
4695 return 0;
4696 }
4697
4698 if (incoming) {
4699 Error *local_err = NULL;
4700 qemu_start_incoming_migration(incoming, &local_err);
4701 if (local_err) {
4702 error_reportf_err(local_err, "-incoming %s: ", incoming);
4703 exit(1);
4704 }
4705 } else if (autostart) {
4706 vm_start();
4707 }
4708
4709 accel_setup_post(current_machine);
4710 os_setup_post();
4711
4712 main_loop();
4713
4714 gdbserver_cleanup();
4715
4716 /* No more vcpu or device emulation activity beyond this point */
4717 vm_shutdown();
4718
4719 job_cancel_sync_all();
4720 bdrv_close_all();
4721
4722 res_free();
4723
4724 /* vhost-user must be cleaned up before chardevs. */
4725 tpm_cleanup();
4726 net_cleanup();
4727 audio_cleanup();
4728 monitor_cleanup();
4729 qemu_chr_cleanup();
4730 user_creatable_cleanup();
4731 migration_object_finalize();
4732 /* TODO: unref root container, check all devices are ok */
4733
4734 return 0;
4735 }
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