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hw/s390x: Allow to configure the consoles with the "-serial" parameter
[qemu.git] / vl.c
blob806eec2ef6746966f9a0db7259fde3305e08a2aa
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 "qom/object_interfaces.h"
124 #include "exec/semihost.h"
125 #include "crypto/init.h"
126 #include "sysemu/replay.h"
127 #include "qapi/qapi-events-run-state.h"
128 #include "qapi/qapi-visit-block-core.h"
129 #include "qapi/qapi-commands-block-core.h"
130 #include "qapi/qapi-commands-misc.h"
131 #include "qapi/qapi-commands-run-state.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134
135 #define MAX_VIRTIO_CONSOLES 1
136
137 static const char *data_dir[16];
138 static int data_dir_idx;
139 const char *bios_name = NULL;
140 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
141 int display_opengl;
142 const char* keyboard_layout = NULL;
143 ram_addr_t ram_size;
144 const char *mem_path = NULL;
145 int mem_prealloc = 0; /* force preallocation of physical target memory */
146 bool enable_mlock = false;
147 int nb_nics;
148 NICInfo nd_table[MAX_NICS];
149 int autostart;
150 static int rtc_utc = 1;
151 static int rtc_date_offset = -1; /* -1 means no change */
152 QEMUClockType rtc_clock;
153 int vga_interface_type = VGA_NONE;
154 static DisplayOptions dpy;
155 int no_frame;
156 static int num_serial_hds = 0;
157 static Chardev **serial_hds = NULL;
158 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
159 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
160 int win2k_install_hack = 0;
161 int singlestep = 0;
162 int smp_cpus;
163 unsigned int max_cpus;
164 int smp_cores = 1;
165 int smp_threads = 1;
166 int acpi_enabled = 1;
167 int no_hpet = 0;
168 int fd_bootchk = 1;
169 static int no_reboot;
170 int no_shutdown = 0;
171 int cursor_hide = 1;
172 int graphic_rotate = 0;
173 const char *watchdog;
174 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
175 int nb_option_roms;
176 int old_param = 0;
177 const char *qemu_name;
178 int alt_grab = 0;
179 int ctrl_grab = 0;
180 unsigned int nb_prom_envs = 0;
181 const char *prom_envs[MAX_PROM_ENVS];
182 int boot_menu;
183 bool boot_strict;
184 uint8_t *boot_splash_filedata;
185 size_t boot_splash_filedata_size;
186 uint8_t qemu_extra_params_fw[2];
187
188 int icount_align_option;
189
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
192 */
193 QemuUUID qemu_uuid;
194 bool qemu_uuid_set;
195
196 static NotifierList exit_notifiers =
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
198
199 static NotifierList machine_init_done_notifiers =
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
201
202 bool xen_allowed;
203 uint32_t xen_domid;
204 enum xen_mode xen_mode = XEN_EMULATE;
205 bool xen_domid_restrict;
206
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_virtcon = 1;
211 static int default_monitor = 1;
212 static int default_floppy = 1;
213 static int default_cdrom = 1;
214 static int default_sdcard = 1;
215 static int default_vga = 1;
216 static int default_net = 1;
217
218 static struct {
219 const char *driver;
220 int *flag;
221 } default_list[] = {
222 { .driver = "isa-serial", .flag = &default_serial },
223 { .driver = "isa-parallel", .flag = &default_parallel },
224 { .driver = "isa-fdc", .flag = &default_floppy },
225 { .driver = "floppy", .flag = &default_floppy },
226 { .driver = "ide-cd", .flag = &default_cdrom },
227 { .driver = "ide-hd", .flag = &default_cdrom },
228 { .driver = "ide-drive", .flag = &default_cdrom },
229 { .driver = "scsi-cd", .flag = &default_cdrom },
230 { .driver = "scsi-hd", .flag = &default_cdrom },
231 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
232 { .driver = "virtio-serial", .flag = &default_virtcon },
233 { .driver = "VGA", .flag = &default_vga },
234 { .driver = "isa-vga", .flag = &default_vga },
235 { .driver = "cirrus-vga", .flag = &default_vga },
236 { .driver = "isa-cirrus-vga", .flag = &default_vga },
237 { .driver = "vmware-svga", .flag = &default_vga },
238 { .driver = "qxl-vga", .flag = &default_vga },
239 { .driver = "virtio-vga", .flag = &default_vga },
240 };
241
242 static QemuOptsList qemu_rtc_opts = {
243 .name = "rtc",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
245 .desc = {
246 {
247 .name = "base",
248 .type = QEMU_OPT_STRING,
249 },{
250 .name = "clock",
251 .type = QEMU_OPT_STRING,
252 },{
253 .name = "driftfix",
254 .type = QEMU_OPT_STRING,
255 },
256 { /* end of list */ }
257 },
258 };
259
260 static QemuOptsList qemu_sandbox_opts = {
261 .name = "sandbox",
262 .implied_opt_name = "enable",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
264 .desc = {
265 {
266 .name = "enable",
267 .type = QEMU_OPT_BOOL,
268 },
269 {
270 .name = "obsolete",
271 .type = QEMU_OPT_STRING,
272 },
273 {
274 .name = "elevateprivileges",
275 .type = QEMU_OPT_STRING,
276 },
277 {
278 .name = "spawn",
279 .type = QEMU_OPT_STRING,
280 },
281 {
282 .name = "resourcecontrol",
283 .type = QEMU_OPT_STRING,
284 },
285 { /* end of list */ }
286 },
287 };
288
289 static QemuOptsList qemu_option_rom_opts = {
290 .name = "option-rom",
291 .implied_opt_name = "romfile",
292 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
293 .desc = {
294 {
295 .name = "bootindex",
296 .type = QEMU_OPT_NUMBER,
297 }, {
298 .name = "romfile",
299 .type = QEMU_OPT_STRING,
300 },
301 { /* end of list */ }
302 },
303 };
304
305 static QemuOptsList qemu_machine_opts = {
306 .name = "machine",
307 .implied_opt_name = "type",
308 .merge_lists = true,
309 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
310 .desc = {
311 /*
312 * no elements => accept any
313 * sanity checking will happen later
314 * when setting machine properties
315 */
316 { }
317 },
318 };
319
320 static QemuOptsList qemu_accel_opts = {
321 .name = "accel",
322 .implied_opt_name = "accel",
323 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
324 .merge_lists = true,
325 .desc = {
326 {
327 .name = "accel",
328 .type = QEMU_OPT_STRING,
329 .help = "Select the type of accelerator",
330 },
331 {
332 .name = "thread",
333 .type = QEMU_OPT_STRING,
334 .help = "Enable/disable multi-threaded TCG",
335 },
336 { /* end of list */ }
337 },
338 };
339
340 static QemuOptsList qemu_boot_opts = {
341 .name = "boot-opts",
342 .implied_opt_name = "order",
343 .merge_lists = true,
344 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
345 .desc = {
346 {
347 .name = "order",
348 .type = QEMU_OPT_STRING,
349 }, {
350 .name = "once",
351 .type = QEMU_OPT_STRING,
352 }, {
353 .name = "menu",
354 .type = QEMU_OPT_BOOL,
355 }, {
356 .name = "splash",
357 .type = QEMU_OPT_STRING,
358 }, {
359 .name = "splash-time",
360 .type = QEMU_OPT_STRING,
361 }, {
362 .name = "reboot-timeout",
363 .type = QEMU_OPT_STRING,
364 }, {
365 .name = "strict",
366 .type = QEMU_OPT_BOOL,
367 },
368 { /*End of list */ }
369 },
370 };
371
372 static QemuOptsList qemu_add_fd_opts = {
373 .name = "add-fd",
374 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
375 .desc = {
376 {
377 .name = "fd",
378 .type = QEMU_OPT_NUMBER,
379 .help = "file descriptor of which a duplicate is added to fd set",
380 },{
381 .name = "set",
382 .type = QEMU_OPT_NUMBER,
383 .help = "ID of the fd set to add fd to",
384 },{
385 .name = "opaque",
386 .type = QEMU_OPT_STRING,
387 .help = "free-form string used to describe fd",
388 },
389 { /* end of list */ }
390 },
391 };
392
393 static QemuOptsList qemu_object_opts = {
394 .name = "object",
395 .implied_opt_name = "qom-type",
396 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
397 .desc = {
398 { }
399 },
400 };
401
402 static QemuOptsList qemu_tpmdev_opts = {
403 .name = "tpmdev",
404 .implied_opt_name = "type",
405 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
406 .desc = {
407 /* options are defined in the TPM backends */
408 { /* end of list */ }
409 },
410 };
411
412 static QemuOptsList qemu_realtime_opts = {
413 .name = "realtime",
414 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
415 .desc = {
416 {
417 .name = "mlock",
418 .type = QEMU_OPT_BOOL,
419 },
420 { /* end of list */ }
421 },
422 };
423
424 static QemuOptsList qemu_msg_opts = {
425 .name = "msg",
426 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
427 .desc = {
428 {
429 .name = "timestamp",
430 .type = QEMU_OPT_BOOL,
431 },
432 { /* end of list */ }
433 },
434 };
435
436 static QemuOptsList qemu_name_opts = {
437 .name = "name",
438 .implied_opt_name = "guest",
439 .merge_lists = true,
440 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
441 .desc = {
442 {
443 .name = "guest",
444 .type = QEMU_OPT_STRING,
445 .help = "Sets the name of the guest.\n"
446 "This name will be displayed in the SDL window caption.\n"
447 "The name will also be used for the VNC server",
448 }, {
449 .name = "process",
450 .type = QEMU_OPT_STRING,
451 .help = "Sets the name of the QEMU process, as shown in top etc",
452 }, {
453 .name = "debug-threads",
454 .type = QEMU_OPT_BOOL,
455 .help = "When enabled, name the individual threads; defaults off.\n"
456 "NOTE: The thread names are for debugging and not a\n"
457 "stable API.",
458 },
459 { /* End of list */ }
460 },
461 };
462
463 static QemuOptsList qemu_mem_opts = {
464 .name = "memory",
465 .implied_opt_name = "size",
466 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
467 .merge_lists = true,
468 .desc = {
469 {
470 .name = "size",
471 .type = QEMU_OPT_SIZE,
472 },
473 {
474 .name = "slots",
475 .type = QEMU_OPT_NUMBER,
476 },
477 {
478 .name = "maxmem",
479 .type = QEMU_OPT_SIZE,
480 },
481 { /* end of list */ }
482 },
483 };
484
485 static QemuOptsList qemu_icount_opts = {
486 .name = "icount",
487 .implied_opt_name = "shift",
488 .merge_lists = true,
489 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
490 .desc = {
491 {
492 .name = "shift",
493 .type = QEMU_OPT_STRING,
494 }, {
495 .name = "align",
496 .type = QEMU_OPT_BOOL,
497 }, {
498 .name = "sleep",
499 .type = QEMU_OPT_BOOL,
500 }, {
501 .name = "rr",
502 .type = QEMU_OPT_STRING,
503 }, {
504 .name = "rrfile",
505 .type = QEMU_OPT_STRING,
506 }, {
507 .name = "rrsnapshot",
508 .type = QEMU_OPT_STRING,
509 },
510 { /* end of list */ }
511 },
512 };
513
514 static QemuOptsList qemu_semihosting_config_opts = {
515 .name = "semihosting-config",
516 .implied_opt_name = "enable",
517 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
518 .desc = {
519 {
520 .name = "enable",
521 .type = QEMU_OPT_BOOL,
522 }, {
523 .name = "target",
524 .type = QEMU_OPT_STRING,
525 }, {
526 .name = "arg",
527 .type = QEMU_OPT_STRING,
528 },
529 { /* end of list */ }
530 },
531 };
532
533 static QemuOptsList qemu_fw_cfg_opts = {
534 .name = "fw_cfg",
535 .implied_opt_name = "name",
536 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
537 .desc = {
538 {
539 .name = "name",
540 .type = QEMU_OPT_STRING,
541 .help = "Sets the fw_cfg name of the blob to be inserted",
542 }, {
543 .name = "file",
544 .type = QEMU_OPT_STRING,
545 .help = "Sets the name of the file from which\n"
546 "the fw_cfg blob will be loaded",
547 }, {
548 .name = "string",
549 .type = QEMU_OPT_STRING,
550 .help = "Sets content of the blob to be inserted from a string",
551 },
552 { /* end of list */ }
553 },
554 };
555
556 /**
557 * Get machine options
558 *
559 * Returns: machine options (never null).
560 */
561 QemuOpts *qemu_get_machine_opts(void)
562 {
563 return qemu_find_opts_singleton("machine");
564 }
565
566 const char *qemu_get_vm_name(void)
567 {
568 return qemu_name;
569 }
570
571 static void res_free(void)
572 {
573 g_free(boot_splash_filedata);
574 boot_splash_filedata = NULL;
575 }
576
577 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
578 {
579 const char *driver = qemu_opt_get(opts, "driver");
580 int i;
581
582 if (!driver)
583 return 0;
584 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
585 if (strcmp(default_list[i].driver, driver) != 0)
586 continue;
587 *(default_list[i].flag) = 0;
588 }
589 return 0;
590 }
591
592 /***********************************************************/
593 /* QEMU state */
594
595 static RunState current_run_state = RUN_STATE_PRELAUNCH;
596
597 /* We use RUN_STATE__MAX but any invalid value will do */
598 static RunState vmstop_requested = RUN_STATE__MAX;
599 static QemuMutex vmstop_lock;
600
601 typedef struct {
602 RunState from;
603 RunState to;
604 } RunStateTransition;
605
606 static const RunStateTransition runstate_transitions_def[] = {
607 /* from -> to */
608 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
609 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
610 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
611
612 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
613 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
614 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
615 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
616 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
617 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
618 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
619 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
620 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
621 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
622 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
623 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
624
625 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
626 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
627 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
628
629 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
630 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
632
633 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
634 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
635 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
636 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
637 { RUN_STATE_PAUSED, RUN_STATE_COLO},
638
639 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
640 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
641 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
642
643 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
644 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
645 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
646
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
648 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
652
653 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
654 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
655
656 { RUN_STATE_COLO, RUN_STATE_RUNNING },
657
658 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
659 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
660 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
661 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
662 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
663 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
664 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
665 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
666 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
667 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
668 { RUN_STATE_RUNNING, RUN_STATE_COLO},
669
670 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
671
672 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
673 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
674 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
675
676 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
677 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
678 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
679 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
680 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
681 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
682
683 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
684 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
685 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
686 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
687
688 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
689 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
690 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
691
692 { RUN_STATE__MAX, RUN_STATE__MAX },
693 };
694
695 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
696
697 bool runstate_check(RunState state)
698 {
699 return current_run_state == state;
700 }
701
702 bool runstate_store(char *str, size_t size)
703 {
704 const char *state = RunState_str(current_run_state);
705 size_t len = strlen(state) + 1;
706
707 if (len > size) {
708 return false;
709 }
710 memcpy(str, state, len);
711 return true;
712 }
713
714 static void runstate_init(void)
715 {
716 const RunStateTransition *p;
717
718 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
719 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
720 runstate_valid_transitions[p->from][p->to] = true;
721 }
722
723 qemu_mutex_init(&vmstop_lock);
724 }
725
726 /* This function will abort() on invalid state transitions */
727 void runstate_set(RunState new_state)
728 {
729 assert(new_state < RUN_STATE__MAX);
730
731 if (current_run_state == new_state) {
732 return;
733 }
734
735 if (!runstate_valid_transitions[current_run_state][new_state]) {
736 error_report("invalid runstate transition: '%s' -> '%s'",
737 RunState_str(current_run_state),
738 RunState_str(new_state));
739 abort();
740 }
741 trace_runstate_set(new_state);
742 current_run_state = new_state;
743 }
744
745 int runstate_is_running(void)
746 {
747 return runstate_check(RUN_STATE_RUNNING);
748 }
749
750 bool runstate_needs_reset(void)
751 {
752 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
753 runstate_check(RUN_STATE_SHUTDOWN);
754 }
755
756 StatusInfo *qmp_query_status(Error **errp)
757 {
758 StatusInfo *info = g_malloc0(sizeof(*info));
759
760 info->running = runstate_is_running();
761 info->singlestep = singlestep;
762 info->status = current_run_state;
763
764 return info;
765 }
766
767 bool qemu_vmstop_requested(RunState *r)
768 {
769 qemu_mutex_lock(&vmstop_lock);
770 *r = vmstop_requested;
771 vmstop_requested = RUN_STATE__MAX;
772 qemu_mutex_unlock(&vmstop_lock);
773 return *r < RUN_STATE__MAX;
774 }
775
776 void qemu_system_vmstop_request_prepare(void)
777 {
778 qemu_mutex_lock(&vmstop_lock);
779 }
780
781 void qemu_system_vmstop_request(RunState state)
782 {
783 vmstop_requested = state;
784 qemu_mutex_unlock(&vmstop_lock);
785 qemu_notify_event();
786 }
787
788 /***********************************************************/
789 /* real time host monotonic timer */
790
791 static time_t qemu_time(void)
792 {
793 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
794 }
795
796 /***********************************************************/
797 /* host time/date access */
798 void qemu_get_timedate(struct tm *tm, int offset)
799 {
800 time_t ti = qemu_time();
801
802 ti += offset;
803 if (rtc_date_offset == -1) {
804 if (rtc_utc)
805 gmtime_r(&ti, tm);
806 else
807 localtime_r(&ti, tm);
808 } else {
809 ti -= rtc_date_offset;
810 gmtime_r(&ti, tm);
811 }
812 }
813
814 int qemu_timedate_diff(struct tm *tm)
815 {
816 time_t seconds;
817
818 if (rtc_date_offset == -1)
819 if (rtc_utc)
820 seconds = mktimegm(tm);
821 else {
822 struct tm tmp = *tm;
823 tmp.tm_isdst = -1; /* use timezone to figure it out */
824 seconds = mktime(&tmp);
825 }
826 else
827 seconds = mktimegm(tm) + rtc_date_offset;
828
829 return seconds - qemu_time();
830 }
831
832 static void configure_rtc_date_offset(const char *startdate, int legacy)
833 {
834 time_t rtc_start_date;
835 struct tm tm;
836
837 if (!strcmp(startdate, "now") && legacy) {
838 rtc_date_offset = -1;
839 } else {
840 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
841 &tm.tm_year,
842 &tm.tm_mon,
843 &tm.tm_mday,
844 &tm.tm_hour,
845 &tm.tm_min,
846 &tm.tm_sec) == 6) {
847 /* OK */
848 } else if (sscanf(startdate, "%d-%d-%d",
849 &tm.tm_year,
850 &tm.tm_mon,
851 &tm.tm_mday) == 3) {
852 tm.tm_hour = 0;
853 tm.tm_min = 0;
854 tm.tm_sec = 0;
855 } else {
856 goto date_fail;
857 }
858 tm.tm_year -= 1900;
859 tm.tm_mon--;
860 rtc_start_date = mktimegm(&tm);
861 if (rtc_start_date == -1) {
862 date_fail:
863 error_report("invalid date format");
864 error_printf("valid formats: "
865 "'2006-06-17T16:01:21' or '2006-06-17'\n");
866 exit(1);
867 }
868 rtc_date_offset = qemu_time() - rtc_start_date;
869 }
870 }
871
872 static void configure_rtc(QemuOpts *opts)
873 {
874 const char *value;
875
876 value = qemu_opt_get(opts, "base");
877 if (value) {
878 if (!strcmp(value, "utc")) {
879 rtc_utc = 1;
880 } else if (!strcmp(value, "localtime")) {
881 Error *blocker = NULL;
882 rtc_utc = 0;
883 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
884 "-rtc base=localtime");
885 replay_add_blocker(blocker);
886 } else {
887 configure_rtc_date_offset(value, 0);
888 }
889 }
890 value = qemu_opt_get(opts, "clock");
891 if (value) {
892 if (!strcmp(value, "host")) {
893 rtc_clock = QEMU_CLOCK_HOST;
894 } else if (!strcmp(value, "rt")) {
895 rtc_clock = QEMU_CLOCK_REALTIME;
896 } else if (!strcmp(value, "vm")) {
897 rtc_clock = QEMU_CLOCK_VIRTUAL;
898 } else {
899 error_report("invalid option value '%s'", value);
900 exit(1);
901 }
902 }
903 value = qemu_opt_get(opts, "driftfix");
904 if (value) {
905 if (!strcmp(value, "slew")) {
906 static GlobalProperty slew_lost_ticks = {
907 .driver = "mc146818rtc",
908 .property = "lost_tick_policy",
909 .value = "slew",
910 };
911
912 qdev_prop_register_global(&slew_lost_ticks);
913 } else if (!strcmp(value, "none")) {
914 /* discard is default */
915 } else {
916 error_report("invalid option value '%s'", value);
917 exit(1);
918 }
919 }
920 }
921
922 /***********************************************************/
923 /* Bluetooth support */
924 static int nb_hcis;
925 static int cur_hci;
926 static struct HCIInfo *hci_table[MAX_NICS];
927
928 struct HCIInfo *qemu_next_hci(void)
929 {
930 if (cur_hci == nb_hcis)
931 return &null_hci;
932
933 return hci_table[cur_hci++];
934 }
935
936 static int bt_hci_parse(const char *str)
937 {
938 struct HCIInfo *hci;
939 bdaddr_t bdaddr;
940
941 if (nb_hcis >= MAX_NICS) {
942 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
943 return -1;
944 }
945
946 hci = hci_init(str);
947 if (!hci)
948 return -1;
949
950 bdaddr.b[0] = 0x52;
951 bdaddr.b[1] = 0x54;
952 bdaddr.b[2] = 0x00;
953 bdaddr.b[3] = 0x12;
954 bdaddr.b[4] = 0x34;
955 bdaddr.b[5] = 0x56 + nb_hcis;
956 hci->bdaddr_set(hci, bdaddr.b);
957
958 hci_table[nb_hcis++] = hci;
959
960 return 0;
961 }
962
963 static void bt_vhci_add(int vlan_id)
964 {
965 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
966
967 if (!vlan->slave)
968 warn_report("adding a VHCI to an empty scatternet %i",
969 vlan_id);
970
971 bt_vhci_init(bt_new_hci(vlan));
972 }
973
974 static struct bt_device_s *bt_device_add(const char *opt)
975 {
976 struct bt_scatternet_s *vlan;
977 int vlan_id = 0;
978 char *endp = strstr(opt, ",vlan=");
979 int len = (endp ? endp - opt : strlen(opt)) + 1;
980 char devname[10];
981
982 pstrcpy(devname, MIN(sizeof(devname), len), opt);
983
984 if (endp) {
985 vlan_id = strtol(endp + 6, &endp, 0);
986 if (*endp) {
987 error_report("unrecognised bluetooth vlan Id");
988 return 0;
989 }
990 }
991
992 vlan = qemu_find_bt_vlan(vlan_id);
993
994 if (!vlan->slave)
995 warn_report("adding a slave device to an empty scatternet %i",
996 vlan_id);
997
998 if (!strcmp(devname, "keyboard"))
999 return bt_keyboard_init(vlan);
1000
1001 error_report("unsupported bluetooth device '%s'", devname);
1002 return 0;
1003 }
1004
1005 static int bt_parse(const char *opt)
1006 {
1007 const char *endp, *p;
1008 int vlan;
1009
1010 if (strstart(opt, "hci", &endp)) {
1011 if (!*endp || *endp == ',') {
1012 if (*endp)
1013 if (!strstart(endp, ",vlan=", 0))
1014 opt = endp + 1;
1015
1016 return bt_hci_parse(opt);
1017 }
1018 } else if (strstart(opt, "vhci", &endp)) {
1019 if (!*endp || *endp == ',') {
1020 if (*endp) {
1021 if (strstart(endp, ",vlan=", &p)) {
1022 vlan = strtol(p, (char **) &endp, 0);
1023 if (*endp) {
1024 error_report("bad scatternet '%s'", p);
1025 return 1;
1026 }
1027 } else {
1028 error_report("bad parameter '%s'", endp + 1);
1029 return 1;
1030 }
1031 } else
1032 vlan = 0;
1033
1034 bt_vhci_add(vlan);
1035 return 0;
1036 }
1037 } else if (strstart(opt, "device:", &endp))
1038 return !bt_device_add(endp);
1039
1040 error_report("bad bluetooth parameter '%s'", opt);
1041 return 1;
1042 }
1043
1044 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1045 {
1046 if (qemu_opt_get_bool(opts, "enable", false)) {
1047 #ifdef CONFIG_SECCOMP
1048 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1049 | QEMU_SECCOMP_SET_OBSOLETE;
1050 const char *value = NULL;
1051
1052 value = qemu_opt_get(opts, "obsolete");
1053 if (value) {
1054 if (g_str_equal(value, "allow")) {
1055 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1056 } else if (g_str_equal(value, "deny")) {
1057 /* this is the default option, this if is here
1058 * to provide a little bit of consistency for
1059 * the command line */
1060 } else {
1061 error_report("invalid argument for obsolete");
1062 return -1;
1063 }
1064 }
1065
1066 value = qemu_opt_get(opts, "elevateprivileges");
1067 if (value) {
1068 if (g_str_equal(value, "deny")) {
1069 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1070 } else if (g_str_equal(value, "children")) {
1071 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1072
1073 /* calling prctl directly because we're
1074 * not sure if host has CAP_SYS_ADMIN set*/
1075 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1076 error_report("failed to set no_new_privs "
1077 "aborting");
1078 return -1;
1079 }
1080 } else if (g_str_equal(value, "allow")) {
1081 /* default value */
1082 } else {
1083 error_report("invalid argument for elevateprivileges");
1084 return -1;
1085 }
1086 }
1087
1088 value = qemu_opt_get(opts, "spawn");
1089 if (value) {
1090 if (g_str_equal(value, "deny")) {
1091 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1092 } else if (g_str_equal(value, "allow")) {
1093 /* default value */
1094 } else {
1095 error_report("invalid argument for spawn");
1096 return -1;
1097 }
1098 }
1099
1100 value = qemu_opt_get(opts, "resourcecontrol");
1101 if (value) {
1102 if (g_str_equal(value, "deny")) {
1103 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1104 } else if (g_str_equal(value, "allow")) {
1105 /* default value */
1106 } else {
1107 error_report("invalid argument for resourcecontrol");
1108 return -1;
1109 }
1110 }
1111
1112 if (seccomp_start(seccomp_opts) < 0) {
1113 error_report("failed to install seccomp syscall filter "
1114 "in the kernel");
1115 return -1;
1116 }
1117 #else
1118 error_report("seccomp support is disabled");
1119 return -1;
1120 #endif
1121 }
1122
1123 return 0;
1124 }
1125
1126 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1127 {
1128 const char *proc_name;
1129
1130 if (qemu_opt_get(opts, "debug-threads")) {
1131 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1132 }
1133 qemu_name = qemu_opt_get(opts, "guest");
1134
1135 proc_name = qemu_opt_get(opts, "process");
1136 if (proc_name) {
1137 os_set_proc_name(proc_name);
1138 }
1139
1140 return 0;
1141 }
1142
1143 bool defaults_enabled(void)
1144 {
1145 return has_defaults;
1146 }
1147
1148 #ifndef _WIN32
1149 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1150 {
1151 int fd, dupfd, flags;
1152 int64_t fdset_id;
1153 const char *fd_opaque = NULL;
1154 AddfdInfo *fdinfo;
1155
1156 fd = qemu_opt_get_number(opts, "fd", -1);
1157 fdset_id = qemu_opt_get_number(opts, "set", -1);
1158 fd_opaque = qemu_opt_get(opts, "opaque");
1159
1160 if (fd < 0) {
1161 error_report("fd option is required and must be non-negative");
1162 return -1;
1163 }
1164
1165 if (fd <= STDERR_FILENO) {
1166 error_report("fd cannot be a standard I/O stream");
1167 return -1;
1168 }
1169
1170 /*
1171 * All fds inherited across exec() necessarily have FD_CLOEXEC
1172 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1173 */
1174 flags = fcntl(fd, F_GETFD);
1175 if (flags == -1 || (flags & FD_CLOEXEC)) {
1176 error_report("fd is not valid or already in use");
1177 return -1;
1178 }
1179
1180 if (fdset_id < 0) {
1181 error_report("set option is required and must be non-negative");
1182 return -1;
1183 }
1184
1185 #ifdef F_DUPFD_CLOEXEC
1186 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1187 #else
1188 dupfd = dup(fd);
1189 if (dupfd != -1) {
1190 qemu_set_cloexec(dupfd);
1191 }
1192 #endif
1193 if (dupfd == -1) {
1194 error_report("error duplicating fd: %s", strerror(errno));
1195 return -1;
1196 }
1197
1198 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1199 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1200 &error_abort);
1201 g_free(fdinfo);
1202
1203 return 0;
1204 }
1205
1206 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1207 {
1208 int fd;
1209
1210 fd = qemu_opt_get_number(opts, "fd", -1);
1211 close(fd);
1212
1213 return 0;
1214 }
1215 #endif
1216
1217 /***********************************************************/
1218 /* QEMU Block devices */
1219
1220 #define HD_OPTS "media=disk"
1221 #define CDROM_OPTS "media=cdrom"
1222 #define FD_OPTS ""
1223 #define PFLASH_OPTS ""
1224 #define MTD_OPTS ""
1225 #define SD_OPTS ""
1226
1227 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1228 {
1229 BlockInterfaceType *block_default_type = opaque;
1230
1231 return drive_new(opts, *block_default_type) == NULL;
1232 }
1233
1234 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1235 {
1236 if (qemu_opt_get(opts, "snapshot") == NULL) {
1237 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1238 }
1239 return 0;
1240 }
1241
1242 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1243 int index, const char *optstr)
1244 {
1245 QemuOpts *opts;
1246 DriveInfo *dinfo;
1247
1248 if (!enable || drive_get_by_index(type, index)) {
1249 return;
1250 }
1251
1252 opts = drive_add(type, index, NULL, optstr);
1253 if (snapshot) {
1254 drive_enable_snapshot(NULL, opts, NULL);
1255 }
1256
1257 dinfo = drive_new(opts, type);
1258 if (!dinfo) {
1259 exit(1);
1260 }
1261 dinfo->is_default = true;
1262
1263 }
1264
1265 static QemuOptsList qemu_smp_opts = {
1266 .name = "smp-opts",
1267 .implied_opt_name = "cpus",
1268 .merge_lists = true,
1269 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1270 .desc = {
1271 {
1272 .name = "cpus",
1273 .type = QEMU_OPT_NUMBER,
1274 }, {
1275 .name = "sockets",
1276 .type = QEMU_OPT_NUMBER,
1277 }, {
1278 .name = "cores",
1279 .type = QEMU_OPT_NUMBER,
1280 }, {
1281 .name = "threads",
1282 .type = QEMU_OPT_NUMBER,
1283 }, {
1284 .name = "maxcpus",
1285 .type = QEMU_OPT_NUMBER,
1286 },
1287 { /*End of list */ }
1288 },
1289 };
1290
1291 static void smp_parse(QemuOpts *opts)
1292 {
1293 if (opts) {
1294 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1295 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1296 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1297 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1298
1299 /* compute missing values, prefer sockets over cores over threads */
1300 if (cpus == 0 || sockets == 0) {
1301 sockets = sockets > 0 ? sockets : 1;
1302 cores = cores > 0 ? cores : 1;
1303 threads = threads > 0 ? threads : 1;
1304 if (cpus == 0) {
1305 cpus = cores * threads * sockets;
1306 }
1307 } else if (cores == 0) {
1308 threads = threads > 0 ? threads : 1;
1309 cores = cpus / (sockets * threads);
1310 cores = cores > 0 ? cores : 1;
1311 } else if (threads == 0) {
1312 threads = cpus / (cores * sockets);
1313 threads = threads > 0 ? threads : 1;
1314 } else if (sockets * cores * threads < cpus) {
1315 error_report("cpu topology: "
1316 "sockets (%u) * cores (%u) * threads (%u) < "
1317 "smp_cpus (%u)",
1318 sockets, cores, threads, cpus);
1319 exit(1);
1320 }
1321
1322 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1323
1324 if (max_cpus < cpus) {
1325 error_report("maxcpus must be equal to or greater than smp");
1326 exit(1);
1327 }
1328
1329 if (sockets * cores * threads > max_cpus) {
1330 error_report("cpu topology: "
1331 "sockets (%u) * cores (%u) * threads (%u) > "
1332 "maxcpus (%u)",
1333 sockets, cores, threads, max_cpus);
1334 exit(1);
1335 }
1336
1337 smp_cpus = cpus;
1338 smp_cores = cores;
1339 smp_threads = threads;
1340 }
1341
1342 if (smp_cpus > 1) {
1343 Error *blocker = NULL;
1344 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1345 replay_add_blocker(blocker);
1346 }
1347 }
1348
1349 static void realtime_init(void)
1350 {
1351 if (enable_mlock) {
1352 if (os_mlock() < 0) {
1353 error_report("locking memory failed");
1354 exit(1);
1355 }
1356 }
1357 }
1358
1359
1360 static void configure_msg(QemuOpts *opts)
1361 {
1362 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1363 }
1364
1365 /***********************************************************/
1366 /* Semihosting */
1367
1368 typedef struct SemihostingConfig {
1369 bool enabled;
1370 SemihostingTarget target;
1371 const char **argv;
1372 int argc;
1373 const char *cmdline; /* concatenated argv */
1374 } SemihostingConfig;
1375
1376 static SemihostingConfig semihosting;
1377
1378 bool semihosting_enabled(void)
1379 {
1380 return semihosting.enabled;
1381 }
1382
1383 SemihostingTarget semihosting_get_target(void)
1384 {
1385 return semihosting.target;
1386 }
1387
1388 const char *semihosting_get_arg(int i)
1389 {
1390 if (i >= semihosting.argc) {
1391 return NULL;
1392 }
1393 return semihosting.argv[i];
1394 }
1395
1396 int semihosting_get_argc(void)
1397 {
1398 return semihosting.argc;
1399 }
1400
1401 const char *semihosting_get_cmdline(void)
1402 {
1403 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1404 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1405 }
1406 return semihosting.cmdline;
1407 }
1408
1409 static int add_semihosting_arg(void *opaque,
1410 const char *name, const char *val,
1411 Error **errp)
1412 {
1413 SemihostingConfig *s = opaque;
1414 if (strcmp(name, "arg") == 0) {
1415 s->argc++;
1416 /* one extra element as g_strjoinv() expects NULL-terminated array */
1417 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1418 s->argv[s->argc - 1] = val;
1419 s->argv[s->argc] = NULL;
1420 }
1421 return 0;
1422 }
1423
1424 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1425 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1426 {
1427 char *cmd_token;
1428
1429 /* argv[0] */
1430 add_semihosting_arg(&semihosting, "arg", file, NULL);
1431
1432 /* split -append and initialize argv[1..n] */
1433 cmd_token = strtok(g_strdup(cmd), " ");
1434 while (cmd_token) {
1435 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1436 cmd_token = strtok(NULL, " ");
1437 }
1438 }
1439
1440 /* Now we still need this for compatibility with XEN. */
1441 bool has_igd_gfx_passthru;
1442 static void igd_gfx_passthru(void)
1443 {
1444 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1445 }
1446
1447 /***********************************************************/
1448 /* USB devices */
1449
1450 static int usb_device_add(const char *devname)
1451 {
1452 USBDevice *dev = NULL;
1453
1454 if (!machine_usb(current_machine)) {
1455 return -1;
1456 }
1457
1458 dev = usbdevice_create(devname);
1459 if (!dev)
1460 return -1;
1461
1462 return 0;
1463 }
1464
1465 static int usb_parse(const char *cmdline)
1466 {
1467 int r;
1468 r = usb_device_add(cmdline);
1469 if (r < 0) {
1470 error_report("could not add USB device '%s'", cmdline);
1471 }
1472 return r;
1473 }
1474
1475 /***********************************************************/
1476 /* machine registration */
1477
1478 MachineState *current_machine;
1479
1480 static MachineClass *find_machine(const char *name)
1481 {
1482 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1483 MachineClass *mc = NULL;
1484
1485 for (el = machines; el; el = el->next) {
1486 MachineClass *temp = el->data;
1487
1488 if (!strcmp(temp->name, name)) {
1489 mc = temp;
1490 break;
1491 }
1492 if (temp->alias &&
1493 !strcmp(temp->alias, name)) {
1494 mc = temp;
1495 break;
1496 }
1497 }
1498
1499 g_slist_free(machines);
1500 return mc;
1501 }
1502
1503 MachineClass *find_default_machine(void)
1504 {
1505 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1506 MachineClass *mc = NULL;
1507
1508 for (el = machines; el; el = el->next) {
1509 MachineClass *temp = el->data;
1510
1511 if (temp->is_default) {
1512 mc = temp;
1513 break;
1514 }
1515 }
1516
1517 g_slist_free(machines);
1518 return mc;
1519 }
1520
1521 MachineInfoList *qmp_query_machines(Error **errp)
1522 {
1523 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1524 MachineInfoList *mach_list = NULL;
1525
1526 for (el = machines; el; el = el->next) {
1527 MachineClass *mc = el->data;
1528 MachineInfoList *entry;
1529 MachineInfo *info;
1530
1531 info = g_malloc0(sizeof(*info));
1532 if (mc->is_default) {
1533 info->has_is_default = true;
1534 info->is_default = true;
1535 }
1536
1537 if (mc->alias) {
1538 info->has_alias = true;
1539 info->alias = g_strdup(mc->alias);
1540 }
1541
1542 info->name = g_strdup(mc->name);
1543 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1544 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1545
1546 entry = g_malloc0(sizeof(*entry));
1547 entry->value = info;
1548 entry->next = mach_list;
1549 mach_list = entry;
1550 }
1551
1552 g_slist_free(machines);
1553 return mach_list;
1554 }
1555
1556 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1557 {
1558 ObjectProperty *prop;
1559 ObjectPropertyIterator iter;
1560
1561 if (!qemu_opt_has_help_opt(opts)) {
1562 return 0;
1563 }
1564
1565 object_property_iter_init(&iter, OBJECT(machine));
1566 while ((prop = object_property_iter_next(&iter))) {
1567 if (!prop->set) {
1568 continue;
1569 }
1570
1571 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1572 prop->name, prop->type);
1573 if (prop->description) {
1574 error_printf(" (%s)\n", prop->description);
1575 } else {
1576 error_printf("\n");
1577 }
1578 }
1579
1580 return 1;
1581 }
1582
1583 /***********************************************************/
1584 /* main execution loop */
1585
1586 struct vm_change_state_entry {
1587 VMChangeStateHandler *cb;
1588 void *opaque;
1589 QLIST_ENTRY (vm_change_state_entry) entries;
1590 };
1591
1592 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1593
1594 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1595 void *opaque)
1596 {
1597 VMChangeStateEntry *e;
1598
1599 e = g_malloc0(sizeof (*e));
1600
1601 e->cb = cb;
1602 e->opaque = opaque;
1603 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1604 return e;
1605 }
1606
1607 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1608 {
1609 QLIST_REMOVE (e, entries);
1610 g_free (e);
1611 }
1612
1613 void vm_state_notify(int running, RunState state)
1614 {
1615 VMChangeStateEntry *e, *next;
1616
1617 trace_vm_state_notify(running, state);
1618
1619 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1620 e->cb(e->opaque, running, state);
1621 }
1622 }
1623
1624 static ShutdownCause reset_requested;
1625 static ShutdownCause shutdown_requested;
1626 static int shutdown_signal;
1627 static pid_t shutdown_pid;
1628 static int powerdown_requested;
1629 static int debug_requested;
1630 static int suspend_requested;
1631 static WakeupReason wakeup_reason;
1632 static NotifierList powerdown_notifiers =
1633 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1634 static NotifierList suspend_notifiers =
1635 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1636 static NotifierList wakeup_notifiers =
1637 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1638 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1639
1640 ShutdownCause qemu_shutdown_requested_get(void)
1641 {
1642 return shutdown_requested;
1643 }
1644
1645 ShutdownCause qemu_reset_requested_get(void)
1646 {
1647 return reset_requested;
1648 }
1649
1650 static int qemu_shutdown_requested(void)
1651 {
1652 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1653 }
1654
1655 static void qemu_kill_report(void)
1656 {
1657 if (!qtest_driver() && shutdown_signal) {
1658 if (shutdown_pid == 0) {
1659 /* This happens for eg ^C at the terminal, so it's worth
1660 * avoiding printing an odd message in that case.
1661 */
1662 error_report("terminating on signal %d", shutdown_signal);
1663 } else {
1664 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1665
1666 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1667 shutdown_signal, shutdown_pid,
1668 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1669 g_free(shutdown_cmd);
1670 }
1671 shutdown_signal = 0;
1672 }
1673 }
1674
1675 static ShutdownCause qemu_reset_requested(void)
1676 {
1677 ShutdownCause r = reset_requested;
1678
1679 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1680 reset_requested = SHUTDOWN_CAUSE_NONE;
1681 return r;
1682 }
1683 return SHUTDOWN_CAUSE_NONE;
1684 }
1685
1686 static int qemu_suspend_requested(void)
1687 {
1688 int r = suspend_requested;
1689 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1690 suspend_requested = 0;
1691 return r;
1692 }
1693 return false;
1694 }
1695
1696 static WakeupReason qemu_wakeup_requested(void)
1697 {
1698 return wakeup_reason;
1699 }
1700
1701 static int qemu_powerdown_requested(void)
1702 {
1703 int r = powerdown_requested;
1704 powerdown_requested = 0;
1705 return r;
1706 }
1707
1708 static int qemu_debug_requested(void)
1709 {
1710 int r = debug_requested;
1711 debug_requested = 0;
1712 return r;
1713 }
1714
1715 /*
1716 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1717 */
1718 void qemu_system_reset(ShutdownCause reason)
1719 {
1720 MachineClass *mc;
1721
1722 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1723
1724 cpu_synchronize_all_states();
1725
1726 if (mc && mc->reset) {
1727 mc->reset();
1728 } else {
1729 qemu_devices_reset();
1730 }
1731 if (reason) {
1732 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1733 &error_abort);
1734 }
1735 cpu_synchronize_all_post_reset();
1736 }
1737
1738 void qemu_system_guest_panicked(GuestPanicInformation *info)
1739 {
1740 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1741
1742 if (current_cpu) {
1743 current_cpu->crash_occurred = true;
1744 }
1745 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1746 !!info, info, &error_abort);
1747 vm_stop(RUN_STATE_GUEST_PANICKED);
1748 if (!no_shutdown) {
1749 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1750 !!info, info, &error_abort);
1751 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1752 }
1753
1754 if (info) {
1755 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1756 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1757 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1758 info->u.hyper_v.arg1,
1759 info->u.hyper_v.arg2,
1760 info->u.hyper_v.arg3,
1761 info->u.hyper_v.arg4,
1762 info->u.hyper_v.arg5);
1763 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1764 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1765 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1766 info->u.s390.core,
1767 S390CrashReason_str(info->u.s390.reason),
1768 info->u.s390.psw_mask,
1769 info->u.s390.psw_addr);
1770 }
1771 qapi_free_GuestPanicInformation(info);
1772 }
1773 }
1774
1775 void qemu_system_reset_request(ShutdownCause reason)
1776 {
1777 if (no_reboot) {
1778 shutdown_requested = reason;
1779 } else {
1780 reset_requested = reason;
1781 }
1782 cpu_stop_current();
1783 qemu_notify_event();
1784 }
1785
1786 static void qemu_system_suspend(void)
1787 {
1788 pause_all_vcpus();
1789 notifier_list_notify(&suspend_notifiers, NULL);
1790 runstate_set(RUN_STATE_SUSPENDED);
1791 qapi_event_send_suspend(&error_abort);
1792 }
1793
1794 void qemu_system_suspend_request(void)
1795 {
1796 if (runstate_check(RUN_STATE_SUSPENDED)) {
1797 return;
1798 }
1799 suspend_requested = 1;
1800 cpu_stop_current();
1801 qemu_notify_event();
1802 }
1803
1804 void qemu_register_suspend_notifier(Notifier *notifier)
1805 {
1806 notifier_list_add(&suspend_notifiers, notifier);
1807 }
1808
1809 void qemu_system_wakeup_request(WakeupReason reason)
1810 {
1811 trace_system_wakeup_request(reason);
1812
1813 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1814 return;
1815 }
1816 if (!(wakeup_reason_mask & (1 << reason))) {
1817 return;
1818 }
1819 runstate_set(RUN_STATE_RUNNING);
1820 wakeup_reason = reason;
1821 qemu_notify_event();
1822 }
1823
1824 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1825 {
1826 if (enabled) {
1827 wakeup_reason_mask |= (1 << reason);
1828 } else {
1829 wakeup_reason_mask &= ~(1 << reason);
1830 }
1831 }
1832
1833 void qemu_register_wakeup_notifier(Notifier *notifier)
1834 {
1835 notifier_list_add(&wakeup_notifiers, notifier);
1836 }
1837
1838 void qemu_system_killed(int signal, pid_t pid)
1839 {
1840 shutdown_signal = signal;
1841 shutdown_pid = pid;
1842 no_shutdown = 0;
1843
1844 /* Cannot call qemu_system_shutdown_request directly because
1845 * we are in a signal handler.
1846 */
1847 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1848 qemu_notify_event();
1849 }
1850
1851 void qemu_system_shutdown_request(ShutdownCause reason)
1852 {
1853 trace_qemu_system_shutdown_request(reason);
1854 replay_shutdown_request(reason);
1855 shutdown_requested = reason;
1856 qemu_notify_event();
1857 }
1858
1859 static void qemu_system_powerdown(void)
1860 {
1861 qapi_event_send_powerdown(&error_abort);
1862 notifier_list_notify(&powerdown_notifiers, NULL);
1863 }
1864
1865 void qemu_system_powerdown_request(void)
1866 {
1867 trace_qemu_system_powerdown_request();
1868 powerdown_requested = 1;
1869 qemu_notify_event();
1870 }
1871
1872 void qemu_register_powerdown_notifier(Notifier *notifier)
1873 {
1874 notifier_list_add(&powerdown_notifiers, notifier);
1875 }
1876
1877 void qemu_system_debug_request(void)
1878 {
1879 debug_requested = 1;
1880 qemu_notify_event();
1881 }
1882
1883 static bool main_loop_should_exit(void)
1884 {
1885 RunState r;
1886 ShutdownCause request;
1887
1888 if (qemu_debug_requested()) {
1889 vm_stop(RUN_STATE_DEBUG);
1890 }
1891 if (qemu_suspend_requested()) {
1892 qemu_system_suspend();
1893 }
1894 request = qemu_shutdown_requested();
1895 if (request) {
1896 qemu_kill_report();
1897 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1898 &error_abort);
1899 if (no_shutdown) {
1900 vm_stop(RUN_STATE_SHUTDOWN);
1901 } else {
1902 return true;
1903 }
1904 }
1905 request = qemu_reset_requested();
1906 if (request) {
1907 pause_all_vcpus();
1908 qemu_system_reset(request);
1909 resume_all_vcpus();
1910 if (!runstate_check(RUN_STATE_RUNNING) &&
1911 !runstate_check(RUN_STATE_INMIGRATE)) {
1912 runstate_set(RUN_STATE_PRELAUNCH);
1913 }
1914 }
1915 if (qemu_wakeup_requested()) {
1916 pause_all_vcpus();
1917 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1918 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1919 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1920 resume_all_vcpus();
1921 qapi_event_send_wakeup(&error_abort);
1922 }
1923 if (qemu_powerdown_requested()) {
1924 qemu_system_powerdown();
1925 }
1926 if (qemu_vmstop_requested(&r)) {
1927 vm_stop(r);
1928 }
1929 return false;
1930 }
1931
1932 static void main_loop(void)
1933 {
1934 #ifdef CONFIG_PROFILER
1935 int64_t ti;
1936 #endif
1937 do {
1938 #ifdef CONFIG_PROFILER
1939 ti = profile_getclock();
1940 #endif
1941 main_loop_wait(false);
1942 #ifdef CONFIG_PROFILER
1943 dev_time += profile_getclock() - ti;
1944 #endif
1945 } while (!main_loop_should_exit());
1946 }
1947
1948 static void version(void)
1949 {
1950 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1951 QEMU_COPYRIGHT "\n");
1952 }
1953
1954 static void help(int exitcode)
1955 {
1956 version();
1957 printf("usage: %s [options] [disk_image]\n\n"
1958 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1959 error_get_progname());
1960
1961 #define QEMU_OPTIONS_GENERATE_HELP
1962 #include "qemu-options-wrapper.h"
1963
1964 printf("\nDuring emulation, the following keys are useful:\n"
1965 "ctrl-alt-f toggle full screen\n"
1966 "ctrl-alt-n switch to virtual console 'n'\n"
1967 "ctrl-alt toggle mouse and keyboard grab\n"
1968 "\n"
1969 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1970 "\n"
1971 QEMU_HELP_BOTTOM "\n");
1972
1973 exit(exitcode);
1974 }
1975
1976 #define HAS_ARG 0x0001
1977
1978 typedef struct QEMUOption {
1979 const char *name;
1980 int flags;
1981 int index;
1982 uint32_t arch_mask;
1983 } QEMUOption;
1984
1985 static const QEMUOption qemu_options[] = {
1986 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1987 #define QEMU_OPTIONS_GENERATE_OPTIONS
1988 #include "qemu-options-wrapper.h"
1989 { NULL },
1990 };
1991
1992 typedef struct VGAInterfaceInfo {
1993 const char *opt_name; /* option name */
1994 const char *name; /* human-readable name */
1995 /* Class names indicating that support is available.
1996 * If no class is specified, the interface is always available */
1997 const char *class_names[2];
1998 } VGAInterfaceInfo;
1999
2000 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2001 [VGA_NONE] = {
2002 .opt_name = "none",
2003 },
2004 [VGA_STD] = {
2005 .opt_name = "std",
2006 .name = "standard VGA",
2007 .class_names = { "VGA", "isa-vga" },
2008 },
2009 [VGA_CIRRUS] = {
2010 .opt_name = "cirrus",
2011 .name = "Cirrus VGA",
2012 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2013 },
2014 [VGA_VMWARE] = {
2015 .opt_name = "vmware",
2016 .name = "VMWare SVGA",
2017 .class_names = { "vmware-svga" },
2018 },
2019 [VGA_VIRTIO] = {
2020 .opt_name = "virtio",
2021 .name = "Virtio VGA",
2022 .class_names = { "virtio-vga" },
2023 },
2024 [VGA_QXL] = {
2025 .opt_name = "qxl",
2026 .name = "QXL VGA",
2027 .class_names = { "qxl-vga" },
2028 },
2029 [VGA_TCX] = {
2030 .opt_name = "tcx",
2031 .name = "TCX framebuffer",
2032 .class_names = { "SUNW,tcx" },
2033 },
2034 [VGA_CG3] = {
2035 .opt_name = "cg3",
2036 .name = "CG3 framebuffer",
2037 .class_names = { "cgthree" },
2038 },
2039 [VGA_XENFB] = {
2040 .opt_name = "xenfb",
2041 },
2042 };
2043
2044 static bool vga_interface_available(VGAInterfaceType t)
2045 {
2046 VGAInterfaceInfo *ti = &vga_interfaces[t];
2047
2048 assert(t < VGA_TYPE_MAX);
2049 return !ti->class_names[0] ||
2050 object_class_by_name(ti->class_names[0]) ||
2051 object_class_by_name(ti->class_names[1]);
2052 }
2053
2054 static void select_vgahw(const char *p)
2055 {
2056 const char *opts;
2057 int t;
2058
2059 assert(vga_interface_type == VGA_NONE);
2060 for (t = 0; t < VGA_TYPE_MAX; t++) {
2061 VGAInterfaceInfo *ti = &vga_interfaces[t];
2062 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2063 if (!vga_interface_available(t)) {
2064 error_report("%s not available", ti->name);
2065 exit(1);
2066 }
2067 vga_interface_type = t;
2068 break;
2069 }
2070 }
2071 if (t == VGA_TYPE_MAX) {
2072 invalid_vga:
2073 error_report("unknown vga type: %s", p);
2074 exit(1);
2075 }
2076 while (*opts) {
2077 const char *nextopt;
2078
2079 if (strstart(opts, ",retrace=", &nextopt)) {
2080 opts = nextopt;
2081 if (strstart(opts, "dumb", &nextopt))
2082 vga_retrace_method = VGA_RETRACE_DUMB;
2083 else if (strstart(opts, "precise", &nextopt))
2084 vga_retrace_method = VGA_RETRACE_PRECISE;
2085 else goto invalid_vga;
2086 } else goto invalid_vga;
2087 opts = nextopt;
2088 }
2089 }
2090
2091 static void parse_display(const char *p)
2092 {
2093 const char *opts;
2094
2095 if (strstart(p, "sdl", &opts)) {
2096 dpy.type = DISPLAY_TYPE_SDL;
2097 while (*opts) {
2098 const char *nextopt;
2099
2100 if (strstart(opts, ",frame=", &nextopt)) {
2101 g_printerr("The frame= sdl option is deprecated, and will be\n"
2102 "removed in a future release.\n");
2103 opts = nextopt;
2104 if (strstart(opts, "on", &nextopt)) {
2105 no_frame = 0;
2106 } else if (strstart(opts, "off", &nextopt)) {
2107 no_frame = 1;
2108 } else {
2109 goto invalid_sdl_args;
2110 }
2111 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2112 opts = nextopt;
2113 if (strstart(opts, "on", &nextopt)) {
2114 alt_grab = 1;
2115 } else if (strstart(opts, "off", &nextopt)) {
2116 alt_grab = 0;
2117 } else {
2118 goto invalid_sdl_args;
2119 }
2120 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2121 opts = nextopt;
2122 if (strstart(opts, "on", &nextopt)) {
2123 ctrl_grab = 1;
2124 } else if (strstart(opts, "off", &nextopt)) {
2125 ctrl_grab = 0;
2126 } else {
2127 goto invalid_sdl_args;
2128 }
2129 } else if (strstart(opts, ",window_close=", &nextopt)) {
2130 opts = nextopt;
2131 dpy.has_window_close = true;
2132 if (strstart(opts, "on", &nextopt)) {
2133 dpy.window_close = true;
2134 } else if (strstart(opts, "off", &nextopt)) {
2135 dpy.window_close = false;
2136 } else {
2137 goto invalid_sdl_args;
2138 }
2139 } else if (strstart(opts, ",gl=", &nextopt)) {
2140 opts = nextopt;
2141 dpy.has_gl = true;
2142 if (strstart(opts, "on", &nextopt)) {
2143 dpy.gl = DISPLAYGL_MODE_ON;
2144 } else if (strstart(opts, "core", &nextopt)) {
2145 dpy.gl = DISPLAYGL_MODE_CORE;
2146 } else if (strstart(opts, "es", &nextopt)) {
2147 dpy.gl = DISPLAYGL_MODE_ES;
2148 } else if (strstart(opts, "off", &nextopt)) {
2149 dpy.gl = DISPLAYGL_MODE_OFF;
2150 } else {
2151 goto invalid_sdl_args;
2152 }
2153 } else {
2154 invalid_sdl_args:
2155 error_report("invalid SDL option string");
2156 exit(1);
2157 }
2158 opts = nextopt;
2159 }
2160 } else if (strstart(p, "vnc", &opts)) {
2161 if (*opts == '=') {
2162 vnc_parse(opts + 1, &error_fatal);
2163 } else {
2164 error_report("VNC requires a display argument vnc=<display>");
2165 exit(1);
2166 }
2167 } else if (strstart(p, "egl-headless", &opts)) {
2168 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2169 } else if (strstart(p, "curses", &opts)) {
2170 dpy.type = DISPLAY_TYPE_CURSES;
2171 } else if (strstart(p, "gtk", &opts)) {
2172 dpy.type = DISPLAY_TYPE_GTK;
2173 while (*opts) {
2174 const char *nextopt;
2175
2176 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2177 opts = nextopt;
2178 dpy.u.gtk.has_grab_on_hover = true;
2179 if (strstart(opts, "on", &nextopt)) {
2180 dpy.u.gtk.grab_on_hover = true;
2181 } else if (strstart(opts, "off", &nextopt)) {
2182 dpy.u.gtk.grab_on_hover = false;
2183 } else {
2184 goto invalid_gtk_args;
2185 }
2186 } else if (strstart(opts, ",gl=", &nextopt)) {
2187 opts = nextopt;
2188 dpy.has_gl = true;
2189 if (strstart(opts, "on", &nextopt)) {
2190 dpy.gl = DISPLAYGL_MODE_ON;
2191 } else if (strstart(opts, "off", &nextopt)) {
2192 dpy.gl = DISPLAYGL_MODE_OFF;
2193 } else {
2194 goto invalid_gtk_args;
2195 }
2196 } else {
2197 invalid_gtk_args:
2198 error_report("invalid GTK option string");
2199 exit(1);
2200 }
2201 opts = nextopt;
2202 }
2203 } else if (strstart(p, "none", &opts)) {
2204 dpy.type = DISPLAY_TYPE_NONE;
2205 } else {
2206 error_report("unknown display type");
2207 exit(1);
2208 }
2209 }
2210
2211 static int balloon_parse(const char *arg)
2212 {
2213 QemuOpts *opts;
2214
2215 warn_report("This option is deprecated. "
2216 "Use '--device virtio-balloon' to enable the balloon device.");
2217
2218 if (strcmp(arg, "none") == 0) {
2219 return 0;
2220 }
2221
2222 if (!strncmp(arg, "virtio", 6)) {
2223 if (arg[6] == ',') {
2224 /* have params -> parse them */
2225 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2226 false);
2227 if (!opts)
2228 return -1;
2229 } else {
2230 /* create empty opts */
2231 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2232 &error_abort);
2233 }
2234 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2235 return 0;
2236 }
2237
2238 return -1;
2239 }
2240
2241 char *qemu_find_file(int type, const char *name)
2242 {
2243 int i;
2244 const char *subdir;
2245 char *buf;
2246
2247 /* Try the name as a straight path first */
2248 if (access(name, R_OK) == 0) {
2249 trace_load_file(name, name);
2250 return g_strdup(name);
2251 }
2252
2253 switch (type) {
2254 case QEMU_FILE_TYPE_BIOS:
2255 subdir = "";
2256 break;
2257 case QEMU_FILE_TYPE_KEYMAP:
2258 subdir = "keymaps/";
2259 break;
2260 default:
2261 abort();
2262 }
2263
2264 for (i = 0; i < data_dir_idx; i++) {
2265 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2266 if (access(buf, R_OK) == 0) {
2267 trace_load_file(name, buf);
2268 return buf;
2269 }
2270 g_free(buf);
2271 }
2272 return NULL;
2273 }
2274
2275 static void qemu_add_data_dir(const char *path)
2276 {
2277 int i;
2278
2279 if (path == NULL) {
2280 return;
2281 }
2282 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2283 return;
2284 }
2285 for (i = 0; i < data_dir_idx; i++) {
2286 if (strcmp(data_dir[i], path) == 0) {
2287 return; /* duplicate */
2288 }
2289 }
2290 data_dir[data_dir_idx++] = g_strdup(path);
2291 }
2292
2293 static inline bool nonempty_str(const char *str)
2294 {
2295 return str && *str;
2296 }
2297
2298 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2299 {
2300 gchar *buf;
2301 size_t size;
2302 const char *name, *file, *str;
2303 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2304
2305 if (fw_cfg == NULL) {
2306 error_report("fw_cfg device not available");
2307 return -1;
2308 }
2309 name = qemu_opt_get(opts, "name");
2310 file = qemu_opt_get(opts, "file");
2311 str = qemu_opt_get(opts, "string");
2312
2313 /* we need name and either a file or the content string */
2314 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2315 error_report("invalid argument(s)");
2316 return -1;
2317 }
2318 if (nonempty_str(file) && nonempty_str(str)) {
2319 error_report("file and string are mutually exclusive");
2320 return -1;
2321 }
2322 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2323 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2324 return -1;
2325 }
2326 if (strncmp(name, "opt/", 4) != 0) {
2327 warn_report("externally provided fw_cfg item names "
2328 "should be prefixed with \"opt/\"");
2329 }
2330 if (nonempty_str(str)) {
2331 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2332 buf = g_memdup(str, size);
2333 } else {
2334 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2335 error_report("can't load %s", file);
2336 return -1;
2337 }
2338 }
2339 /* For legacy, keep user files in a specific global order. */
2340 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2341 fw_cfg_add_file(fw_cfg, name, buf, size);
2342 fw_cfg_reset_order_override(fw_cfg);
2343 return 0;
2344 }
2345
2346 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2347 {
2348 return qdev_device_help(opts);
2349 }
2350
2351 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2352 {
2353 Error *err = NULL;
2354 DeviceState *dev;
2355
2356 dev = qdev_device_add(opts, &err);
2357 if (!dev) {
2358 error_report_err(err);
2359 return -1;
2360 }
2361 object_unref(OBJECT(dev));
2362 return 0;
2363 }
2364
2365 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2366 {
2367 Error *local_err = NULL;
2368
2369 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2370 if (local_err) {
2371 error_report_err(local_err);
2372 return -1;
2373 }
2374 exit(0);
2375 }
2376 return 0;
2377 }
2378
2379 #ifdef CONFIG_VIRTFS
2380 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2381 {
2382 return qemu_fsdev_add(opts);
2383 }
2384 #endif
2385
2386 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2387 {
2388 Chardev *chr;
2389 const char *chardev;
2390 const char *mode;
2391 int flags;
2392
2393 mode = qemu_opt_get(opts, "mode");
2394 if (mode == NULL) {
2395 mode = "readline";
2396 }
2397 if (strcmp(mode, "readline") == 0) {
2398 flags = MONITOR_USE_READLINE;
2399 } else if (strcmp(mode, "control") == 0) {
2400 flags = MONITOR_USE_CONTROL;
2401 } else {
2402 error_report("unknown monitor mode \"%s\"", mode);
2403 exit(1);
2404 }
2405
2406 if (qemu_opt_get_bool(opts, "pretty", 0))
2407 flags |= MONITOR_USE_PRETTY;
2408
2409 /* OOB is off by default */
2410 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2411 flags |= MONITOR_USE_OOB;
2412 }
2413
2414 chardev = qemu_opt_get(opts, "chardev");
2415 chr = qemu_chr_find(chardev);
2416 if (chr == NULL) {
2417 error_report("chardev \"%s\" not found", chardev);
2418 exit(1);
2419 }
2420
2421 monitor_init(chr, flags);
2422 return 0;
2423 }
2424
2425 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2426 {
2427 static int monitor_device_index = 0;
2428 QemuOpts *opts;
2429 const char *p;
2430 char label[32];
2431
2432 if (strstart(optarg, "chardev:", &p)) {
2433 snprintf(label, sizeof(label), "%s", p);
2434 } else {
2435 snprintf(label, sizeof(label), "compat_monitor%d",
2436 monitor_device_index);
2437 opts = qemu_chr_parse_compat(label, optarg);
2438 if (!opts) {
2439 error_report("parse error: %s", optarg);
2440 exit(1);
2441 }
2442 }
2443
2444 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2445 qemu_opt_set(opts, "mode", mode, &error_abort);
2446 qemu_opt_set(opts, "chardev", label, &error_abort);
2447 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2448 monitor_device_index++;
2449 }
2450
2451 struct device_config {
2452 enum {
2453 DEV_USB, /* -usbdevice */
2454 DEV_BT, /* -bt */
2455 DEV_SERIAL, /* -serial */
2456 DEV_PARALLEL, /* -parallel */
2457 DEV_VIRTCON, /* -virtioconsole */
2458 DEV_DEBUGCON, /* -debugcon */
2459 DEV_GDB, /* -gdb, -s */
2460 DEV_SCLP, /* s390 sclp */
2461 } type;
2462 const char *cmdline;
2463 Location loc;
2464 QTAILQ_ENTRY(device_config) next;
2465 };
2466
2467 static QTAILQ_HEAD(, device_config) device_configs =
2468 QTAILQ_HEAD_INITIALIZER(device_configs);
2469
2470 static void add_device_config(int type, const char *cmdline)
2471 {
2472 struct device_config *conf;
2473
2474 conf = g_malloc0(sizeof(*conf));
2475 conf->type = type;
2476 conf->cmdline = cmdline;
2477 loc_save(&conf->loc);
2478 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2479 }
2480
2481 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2482 {
2483 struct device_config *conf;
2484 int rc;
2485
2486 QTAILQ_FOREACH(conf, &device_configs, next) {
2487 if (conf->type != type)
2488 continue;
2489 loc_push_restore(&conf->loc);
2490 rc = func(conf->cmdline);
2491 loc_pop(&conf->loc);
2492 if (rc) {
2493 return rc;
2494 }
2495 }
2496 return 0;
2497 }
2498
2499 static int serial_parse(const char *devname)
2500 {
2501 int index = num_serial_hds;
2502 char label[32];
2503
2504 if (strcmp(devname, "none") == 0)
2505 return 0;
2506 snprintf(label, sizeof(label), "serial%d", index);
2507 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2508
2509 serial_hds[index] = qemu_chr_new(label, devname);
2510 if (!serial_hds[index]) {
2511 error_report("could not connect serial device"
2512 " to character backend '%s'", devname);
2513 return -1;
2514 }
2515 num_serial_hds++;
2516 return 0;
2517 }
2518
2519 Chardev *serial_hd(int i)
2520 {
2521 assert(i >= 0);
2522 if (i < num_serial_hds) {
2523 return serial_hds[i];
2524 }
2525 return NULL;
2526 }
2527
2528 int serial_max_hds(void)
2529 {
2530 return num_serial_hds;
2531 }
2532
2533 static int parallel_parse(const char *devname)
2534 {
2535 static int index = 0;
2536 char label[32];
2537
2538 if (strcmp(devname, "none") == 0)
2539 return 0;
2540 if (index == MAX_PARALLEL_PORTS) {
2541 error_report("too many parallel ports");
2542 exit(1);
2543 }
2544 snprintf(label, sizeof(label), "parallel%d", index);
2545 parallel_hds[index] = qemu_chr_new(label, devname);
2546 if (!parallel_hds[index]) {
2547 error_report("could not connect parallel device"
2548 " to character backend '%s'", devname);
2549 return -1;
2550 }
2551 index++;
2552 return 0;
2553 }
2554
2555 static int virtcon_parse(const char *devname)
2556 {
2557 QemuOptsList *device = qemu_find_opts("device");
2558 static int index = 0;
2559 char label[32];
2560 QemuOpts *bus_opts, *dev_opts;
2561
2562 if (strcmp(devname, "none") == 0)
2563 return 0;
2564 if (index == MAX_VIRTIO_CONSOLES) {
2565 error_report("too many virtio consoles");
2566 exit(1);
2567 }
2568
2569 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2570 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2571
2572 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2573 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2574
2575 snprintf(label, sizeof(label), "virtcon%d", index);
2576 virtcon_hds[index] = qemu_chr_new(label, devname);
2577 if (!virtcon_hds[index]) {
2578 error_report("could not connect virtio console"
2579 " to character backend '%s'", devname);
2580 return -1;
2581 }
2582 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2583
2584 index++;
2585 return 0;
2586 }
2587
2588 static int debugcon_parse(const char *devname)
2589 {
2590 QemuOpts *opts;
2591
2592 if (!qemu_chr_new("debugcon", devname)) {
2593 exit(1);
2594 }
2595 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2596 if (!opts) {
2597 error_report("already have a debugcon device");
2598 exit(1);
2599 }
2600 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2601 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2602 return 0;
2603 }
2604
2605 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2606 {
2607 const MachineClass *mc1 = a, *mc2 = b;
2608 int res;
2609
2610 if (mc1->family == NULL) {
2611 if (mc2->family == NULL) {
2612 /* Compare standalone machine types against each other; they sort
2613 * in increasing order.
2614 */
2615 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2616 object_class_get_name(OBJECT_CLASS(mc2)));
2617 }
2618
2619 /* Standalone machine types sort after families. */
2620 return 1;
2621 }
2622
2623 if (mc2->family == NULL) {
2624 /* Families sort before standalone machine types. */
2625 return -1;
2626 }
2627
2628 /* Families sort between each other alphabetically increasingly. */
2629 res = strcmp(mc1->family, mc2->family);
2630 if (res != 0) {
2631 return res;
2632 }
2633
2634 /* Within the same family, machine types sort in decreasing order. */
2635 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2636 object_class_get_name(OBJECT_CLASS(mc1)));
2637 }
2638
2639 static MachineClass *machine_parse(const char *name)
2640 {
2641 MachineClass *mc = NULL;
2642 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2643
2644 if (name) {
2645 mc = find_machine(name);
2646 }
2647 if (mc) {
2648 g_slist_free(machines);
2649 return mc;
2650 }
2651 if (name && !is_help_option(name)) {
2652 error_report("unsupported machine type");
2653 error_printf("Use -machine help to list supported machines\n");
2654 } else {
2655 printf("Supported machines are:\n");
2656 machines = g_slist_sort(machines, machine_class_cmp);
2657 for (el = machines; el; el = el->next) {
2658 MachineClass *mc = el->data;
2659 if (mc->alias) {
2660 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2661 }
2662 printf("%-20s %s%s\n", mc->name, mc->desc,
2663 mc->is_default ? " (default)" : "");
2664 }
2665 }
2666
2667 g_slist_free(machines);
2668 exit(!name || !is_help_option(name));
2669 }
2670
2671 void qemu_add_exit_notifier(Notifier *notify)
2672 {
2673 notifier_list_add(&exit_notifiers, notify);
2674 }
2675
2676 void qemu_remove_exit_notifier(Notifier *notify)
2677 {
2678 notifier_remove(notify);
2679 }
2680
2681 static void qemu_run_exit_notifiers(void)
2682 {
2683 notifier_list_notify(&exit_notifiers, NULL);
2684 }
2685
2686 bool machine_init_done;
2687
2688 void qemu_add_machine_init_done_notifier(Notifier *notify)
2689 {
2690 notifier_list_add(&machine_init_done_notifiers, notify);
2691 if (machine_init_done) {
2692 notify->notify(notify, NULL);
2693 }
2694 }
2695
2696 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2697 {
2698 notifier_remove(notify);
2699 }
2700
2701 static void qemu_run_machine_init_done_notifiers(void)
2702 {
2703 machine_init_done = true;
2704 notifier_list_notify(&machine_init_done_notifiers, NULL);
2705 }
2706
2707 static const QEMUOption *lookup_opt(int argc, char **argv,
2708 const char **poptarg, int *poptind)
2709 {
2710 const QEMUOption *popt;
2711 int optind = *poptind;
2712 char *r = argv[optind];
2713 const char *optarg;
2714
2715 loc_set_cmdline(argv, optind, 1);
2716 optind++;
2717 /* Treat --foo the same as -foo. */
2718 if (r[1] == '-')
2719 r++;
2720 popt = qemu_options;
2721 for(;;) {
2722 if (!popt->name) {
2723 error_report("invalid option");
2724 exit(1);
2725 }
2726 if (!strcmp(popt->name, r + 1))
2727 break;
2728 popt++;
2729 }
2730 if (popt->flags & HAS_ARG) {
2731 if (optind >= argc) {
2732 error_report("requires an argument");
2733 exit(1);
2734 }
2735 optarg = argv[optind++];
2736 loc_set_cmdline(argv, optind - 2, 2);
2737 } else {
2738 optarg = NULL;
2739 }
2740
2741 *poptarg = optarg;
2742 *poptind = optind;
2743
2744 return popt;
2745 }
2746
2747 static MachineClass *select_machine(void)
2748 {
2749 MachineClass *machine_class = find_default_machine();
2750 const char *optarg;
2751 QemuOpts *opts;
2752 Location loc;
2753
2754 loc_push_none(&loc);
2755
2756 opts = qemu_get_machine_opts();
2757 qemu_opts_loc_restore(opts);
2758
2759 optarg = qemu_opt_get(opts, "type");
2760 if (optarg) {
2761 machine_class = machine_parse(optarg);
2762 }
2763
2764 if (!machine_class) {
2765 error_report("No machine specified, and there is no default");
2766 error_printf("Use -machine help to list supported machines\n");
2767 exit(1);
2768 }
2769
2770 loc_pop(&loc);
2771 return machine_class;
2772 }
2773
2774 static int machine_set_property(void *opaque,
2775 const char *name, const char *value,
2776 Error **errp)
2777 {
2778 Object *obj = OBJECT(opaque);
2779 Error *local_err = NULL;
2780 char *p, *qom_name;
2781
2782 if (strcmp(name, "type") == 0) {
2783 return 0;
2784 }
2785
2786 qom_name = g_strdup(name);
2787 for (p = qom_name; *p; p++) {
2788 if (*p == '_') {
2789 *p = '-';
2790 }
2791 }
2792
2793 object_property_parse(obj, value, qom_name, &local_err);
2794 g_free(qom_name);
2795
2796 if (local_err) {
2797 error_report_err(local_err);
2798 return -1;
2799 }
2800
2801 return 0;
2802 }
2803
2804
2805 /*
2806 * Initial object creation happens before all other
2807 * QEMU data types are created. The majority of objects
2808 * can be created at this point. The rng-egd object
2809 * cannot be created here, as it depends on the chardev
2810 * already existing.
2811 */
2812 static bool object_create_initial(const char *type)
2813 {
2814 if (g_str_equal(type, "rng-egd") ||
2815 g_str_has_prefix(type, "pr-manager-")) {
2816 return false;
2817 }
2818
2819 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2820 if (g_str_equal(type, "cryptodev-vhost-user")) {
2821 return false;
2822 }
2823 #endif
2824
2825 /*
2826 * return false for concrete netfilters since
2827 * they depend on netdevs already existing
2828 */
2829 if (g_str_equal(type, "filter-buffer") ||
2830 g_str_equal(type, "filter-dump") ||
2831 g_str_equal(type, "filter-mirror") ||
2832 g_str_equal(type, "filter-redirector") ||
2833 g_str_equal(type, "colo-compare") ||
2834 g_str_equal(type, "filter-rewriter") ||
2835 g_str_equal(type, "filter-replay")) {
2836 return false;
2837 }
2838
2839 /* Memory allocation by backends needs to be done
2840 * after configure_accelerator() (due to the tcg_enabled()
2841 * checks at memory_region_init_*()).
2842 *
2843 * Also, allocation of large amounts of memory may delay
2844 * chardev initialization for too long, and trigger timeouts
2845 * on software that waits for a monitor socket to be created
2846 * (e.g. libvirt).
2847 */
2848 if (g_str_has_prefix(type, "memory-backend-")) {
2849 return false;
2850 }
2851
2852 return true;
2853 }
2854
2855
2856 /*
2857 * The remainder of object creation happens after the
2858 * creation of chardev, fsdev, net clients and device data types.
2859 */
2860 static bool object_create_delayed(const char *type)
2861 {
2862 return !object_create_initial(type);
2863 }
2864
2865
2866 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2867 MachineClass *mc)
2868 {
2869 uint64_t sz;
2870 const char *mem_str;
2871 const char *maxmem_str, *slots_str;
2872 const ram_addr_t default_ram_size = mc->default_ram_size;
2873 QemuOpts *opts = qemu_find_opts_singleton("memory");
2874 Location loc;
2875
2876 loc_push_none(&loc);
2877 qemu_opts_loc_restore(opts);
2878
2879 sz = 0;
2880 mem_str = qemu_opt_get(opts, "size");
2881 if (mem_str) {
2882 if (!*mem_str) {
2883 error_report("missing 'size' option value");
2884 exit(EXIT_FAILURE);
2885 }
2886
2887 sz = qemu_opt_get_size(opts, "size", ram_size);
2888
2889 /* Fix up legacy suffix-less format */
2890 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2891 uint64_t overflow_check = sz;
2892
2893 sz <<= 20;
2894 if ((sz >> 20) != overflow_check) {
2895 error_report("too large 'size' option value");
2896 exit(EXIT_FAILURE);
2897 }
2898 }
2899 }
2900
2901 /* backward compatibility behaviour for case "-m 0" */
2902 if (sz == 0) {
2903 sz = default_ram_size;
2904 }
2905
2906 sz = QEMU_ALIGN_UP(sz, 8192);
2907 ram_size = sz;
2908 if (ram_size != sz) {
2909 error_report("ram size too large");
2910 exit(EXIT_FAILURE);
2911 }
2912
2913 /* store value for the future use */
2914 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2915 *maxram_size = ram_size;
2916
2917 maxmem_str = qemu_opt_get(opts, "maxmem");
2918 slots_str = qemu_opt_get(opts, "slots");
2919 if (maxmem_str && slots_str) {
2920 uint64_t slots;
2921
2922 sz = qemu_opt_get_size(opts, "maxmem", 0);
2923 slots = qemu_opt_get_number(opts, "slots", 0);
2924 if (sz < ram_size) {
2925 error_report("invalid value of -m option maxmem: "
2926 "maximum memory size (0x%" PRIx64 ") must be at least "
2927 "the initial memory size (0x" RAM_ADDR_FMT ")",
2928 sz, ram_size);
2929 exit(EXIT_FAILURE);
2930 } else if (sz > ram_size) {
2931 if (!slots) {
2932 error_report("invalid value of -m option: maxmem was "
2933 "specified, but no hotplug slots were specified");
2934 exit(EXIT_FAILURE);
2935 }
2936 } else if (slots) {
2937 error_report("invalid value of -m option maxmem: "
2938 "memory slots were specified but maximum memory size "
2939 "(0x%" PRIx64 ") is equal to the initial memory size "
2940 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2941 exit(EXIT_FAILURE);
2942 }
2943
2944 *maxram_size = sz;
2945 *ram_slots = slots;
2946 } else if ((!maxmem_str && slots_str) ||
2947 (maxmem_str && !slots_str)) {
2948 error_report("invalid -m option value: missing "
2949 "'%s' option", slots_str ? "maxmem" : "slots");
2950 exit(EXIT_FAILURE);
2951 }
2952
2953 loc_pop(&loc);
2954 }
2955
2956 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2957 {
2958 GlobalProperty *g;
2959
2960 g = g_malloc0(sizeof(*g));
2961 g->driver = qemu_opt_get(opts, "driver");
2962 g->property = qemu_opt_get(opts, "property");
2963 g->value = qemu_opt_get(opts, "value");
2964 g->user_provided = true;
2965 g->errp = &error_fatal;
2966 qdev_prop_register_global(g);
2967 return 0;
2968 }
2969
2970 static int qemu_read_default_config_file(void)
2971 {
2972 int ret;
2973
2974 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2975 if (ret < 0 && ret != -ENOENT) {
2976 return ret;
2977 }
2978
2979 return 0;
2980 }
2981
2982 static void user_register_global_props(void)
2983 {
2984 qemu_opts_foreach(qemu_find_opts("global"),
2985 global_init_func, NULL, NULL);
2986 }
2987
2988 /*
2989 * Note: we should see that these properties are actually having a
2990 * priority: accel < machine < user. This means e.g. when user
2991 * specifies something in "-global", it'll always be used with highest
2992 * priority than either machine/accelerator compat properties.
2993 */
2994 static void register_global_properties(MachineState *ms)
2995 {
2996 accel_register_compat_props(ms->accelerator);
2997 machine_register_compat_props(ms);
2998 user_register_global_props();
2999 }
3000
3001 int main(int argc, char **argv, char **envp)
3002 {
3003 int i;
3004 int snapshot, linux_boot;
3005 const char *initrd_filename;
3006 const char *kernel_filename, *kernel_cmdline;
3007 const char *boot_order = NULL;
3008 const char *boot_once = NULL;
3009 DisplayState *ds;
3010 QemuOpts *opts, *machine_opts;
3011 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3012 QemuOptsList *olist;
3013 int optind;
3014 const char *optarg;
3015 const char *loadvm = NULL;
3016 MachineClass *machine_class;
3017 const char *cpu_model;
3018 const char *vga_model = NULL;
3019 const char *qtest_chrdev = NULL;
3020 const char *qtest_log = NULL;
3021 const char *pid_file = NULL;
3022 const char *incoming = NULL;
3023 bool userconfig = true;
3024 bool nographic = false;
3025 int display_remote = 0;
3026 const char *log_mask = NULL;
3027 const char *log_file = NULL;
3028 char *trace_file = NULL;
3029 ram_addr_t maxram_size;
3030 uint64_t ram_slots = 0;
3031 FILE *vmstate_dump_file = NULL;
3032 Error *main_loop_err = NULL;
3033 Error *err = NULL;
3034 bool list_data_dirs = false;
3035 char *dir, **dirs;
3036 typedef struct BlockdevOptions_queue {
3037 BlockdevOptions *bdo;
3038 Location loc;
3039 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3040 } BlockdevOptions_queue;
3041 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3042 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3043
3044 module_call_init(MODULE_INIT_TRACE);
3045
3046 qemu_init_cpu_list();
3047 qemu_init_cpu_loop();
3048
3049 qemu_mutex_lock_iothread();
3050
3051 atexit(qemu_run_exit_notifiers);
3052 error_set_progname(argv[0]);
3053 qemu_init_exec_dir(argv[0]);
3054
3055 module_call_init(MODULE_INIT_QOM);
3056
3057 qemu_add_opts(&qemu_drive_opts);
3058 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3059 qemu_add_drive_opts(&qemu_common_drive_opts);
3060 qemu_add_drive_opts(&qemu_drive_opts);
3061 qemu_add_drive_opts(&bdrv_runtime_opts);
3062 qemu_add_opts(&qemu_chardev_opts);
3063 qemu_add_opts(&qemu_device_opts);
3064 qemu_add_opts(&qemu_netdev_opts);
3065 qemu_add_opts(&qemu_nic_opts);
3066 qemu_add_opts(&qemu_net_opts);
3067 qemu_add_opts(&qemu_rtc_opts);
3068 qemu_add_opts(&qemu_global_opts);
3069 qemu_add_opts(&qemu_mon_opts);
3070 qemu_add_opts(&qemu_trace_opts);
3071 qemu_add_opts(&qemu_option_rom_opts);
3072 qemu_add_opts(&qemu_machine_opts);
3073 qemu_add_opts(&qemu_accel_opts);
3074 qemu_add_opts(&qemu_mem_opts);
3075 qemu_add_opts(&qemu_smp_opts);
3076 qemu_add_opts(&qemu_boot_opts);
3077 qemu_add_opts(&qemu_sandbox_opts);
3078 qemu_add_opts(&qemu_add_fd_opts);
3079 qemu_add_opts(&qemu_object_opts);
3080 qemu_add_opts(&qemu_tpmdev_opts);
3081 qemu_add_opts(&qemu_realtime_opts);
3082 qemu_add_opts(&qemu_msg_opts);
3083 qemu_add_opts(&qemu_name_opts);
3084 qemu_add_opts(&qemu_numa_opts);
3085 qemu_add_opts(&qemu_icount_opts);
3086 qemu_add_opts(&qemu_semihosting_config_opts);
3087 qemu_add_opts(&qemu_fw_cfg_opts);
3088 module_call_init(MODULE_INIT_OPTS);
3089
3090 runstate_init();
3091 postcopy_infrastructure_init();
3092
3093 if (qcrypto_init(&err) < 0) {
3094 error_reportf_err(err, "cannot initialize crypto: ");
3095 exit(1);
3096 }
3097 rtc_clock = QEMU_CLOCK_HOST;
3098
3099 QLIST_INIT (&vm_change_state_head);
3100 os_setup_early_signal_handling();
3101
3102 cpu_model = NULL;
3103 snapshot = 0;
3104
3105 nb_nics = 0;
3106
3107 bdrv_init_with_whitelist();
3108
3109 autostart = 1;
3110
3111 /* first pass of option parsing */
3112 optind = 1;
3113 while (optind < argc) {
3114 if (argv[optind][0] != '-') {
3115 /* disk image */
3116 optind++;
3117 } else {
3118 const QEMUOption *popt;
3119
3120 popt = lookup_opt(argc, argv, &optarg, &optind);
3121 switch (popt->index) {
3122 case QEMU_OPTION_nodefconfig:
3123 case QEMU_OPTION_nouserconfig:
3124 userconfig = false;
3125 break;
3126 }
3127 }
3128 }
3129
3130 if (userconfig) {
3131 if (qemu_read_default_config_file() < 0) {
3132 exit(1);
3133 }
3134 }
3135
3136 /* second pass of option parsing */
3137 optind = 1;
3138 for(;;) {
3139 if (optind >= argc)
3140 break;
3141 if (argv[optind][0] != '-') {
3142 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3143 } else {
3144 const QEMUOption *popt;
3145
3146 popt = lookup_opt(argc, argv, &optarg, &optind);
3147 if (!(popt->arch_mask & arch_type)) {
3148 error_report("Option not supported for this target");
3149 exit(1);
3150 }
3151 switch(popt->index) {
3152 case QEMU_OPTION_no_kvm_irqchip: {
3153 olist = qemu_find_opts("machine");
3154 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3155 break;
3156 }
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 add_device_config(DEV_VIRTCON, optarg);
3602 default_virtcon = 0;
3603 if (strncmp(optarg, "mon:", 4) == 0) {
3604 default_monitor = 0;
3605 }
3606 break;
3607 case QEMU_OPTION_parallel:
3608 add_device_config(DEV_PARALLEL, optarg);
3609 default_parallel = 0;
3610 if (strncmp(optarg, "mon:", 4) == 0) {
3611 default_monitor = 0;
3612 }
3613 break;
3614 case QEMU_OPTION_debugcon:
3615 add_device_config(DEV_DEBUGCON, optarg);
3616 break;
3617 case QEMU_OPTION_loadvm:
3618 loadvm = optarg;
3619 break;
3620 case QEMU_OPTION_full_screen:
3621 dpy.has_full_screen = true;
3622 dpy.full_screen = true;
3623 break;
3624 case QEMU_OPTION_no_frame:
3625 g_printerr("The -no-frame switch is deprecated, and will be\n"
3626 "removed in a future release.\n");
3627 no_frame = 1;
3628 break;
3629 case QEMU_OPTION_alt_grab:
3630 alt_grab = 1;
3631 break;
3632 case QEMU_OPTION_ctrl_grab:
3633 ctrl_grab = 1;
3634 break;
3635 case QEMU_OPTION_no_quit:
3636 dpy.has_window_close = true;
3637 dpy.window_close = false;
3638 break;
3639 case QEMU_OPTION_sdl:
3640 #ifdef CONFIG_SDL
3641 dpy.type = DISPLAY_TYPE_SDL;
3642 break;
3643 #else
3644 error_report("SDL support is disabled");
3645 exit(1);
3646 #endif
3647 case QEMU_OPTION_pidfile:
3648 pid_file = optarg;
3649 break;
3650 case QEMU_OPTION_win2k_hack:
3651 win2k_install_hack = 1;
3652 break;
3653 case QEMU_OPTION_rtc_td_hack: {
3654 static GlobalProperty slew_lost_ticks = {
3655 .driver = "mc146818rtc",
3656 .property = "lost_tick_policy",
3657 .value = "slew",
3658 };
3659
3660 qdev_prop_register_global(&slew_lost_ticks);
3661 warn_report("This option is deprecated, "
3662 "use '-rtc driftfix=slew' instead.");
3663 break;
3664 }
3665 case QEMU_OPTION_acpitable:
3666 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3667 optarg, true);
3668 if (!opts) {
3669 exit(1);
3670 }
3671 acpi_table_add(opts, &error_fatal);
3672 break;
3673 case QEMU_OPTION_smbios:
3674 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3675 optarg, false);
3676 if (!opts) {
3677 exit(1);
3678 }
3679 smbios_entry_add(opts, &error_fatal);
3680 break;
3681 case QEMU_OPTION_fwcfg:
3682 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3683 optarg, true);
3684 if (opts == NULL) {
3685 exit(1);
3686 }
3687 break;
3688 case QEMU_OPTION_enable_kvm:
3689 olist = qemu_find_opts("machine");
3690 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3691 break;
3692 case QEMU_OPTION_enable_hax:
3693 olist = qemu_find_opts("machine");
3694 qemu_opts_parse_noisily(olist, "accel=hax", false);
3695 break;
3696 case QEMU_OPTION_M:
3697 case QEMU_OPTION_machine:
3698 olist = qemu_find_opts("machine");
3699 opts = qemu_opts_parse_noisily(olist, optarg, true);
3700 if (!opts) {
3701 exit(1);
3702 }
3703 break;
3704 case QEMU_OPTION_no_kvm:
3705 olist = qemu_find_opts("machine");
3706 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3707 break;
3708 case QEMU_OPTION_no_kvm_pit_reinjection: {
3709 static GlobalProperty kvm_pit_lost_tick_policy = {
3710 .driver = "kvm-pit",
3711 .property = "lost_tick_policy",
3712 .value = "discard",
3713 };
3714
3715 warn_report("deprecated, replaced by "
3716 "-global kvm-pit.lost_tick_policy=discard");
3717 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3718 break;
3719 }
3720 case QEMU_OPTION_accel:
3721 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3722 optarg, true);
3723 optarg = qemu_opt_get(accel_opts, "accel");
3724 if (!optarg || is_help_option(optarg)) {
3725 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3726 exit(0);
3727 }
3728 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3729 false, &error_abort);
3730 qemu_opt_set(opts, "accel", optarg, &error_abort);
3731 break;
3732 case QEMU_OPTION_usb:
3733 olist = qemu_find_opts("machine");
3734 qemu_opts_parse_noisily(olist, "usb=on", false);
3735 break;
3736 case QEMU_OPTION_usbdevice:
3737 error_report("'-usbdevice' is deprecated, please use "
3738 "'-device usb-...' instead");
3739 olist = qemu_find_opts("machine");
3740 qemu_opts_parse_noisily(olist, "usb=on", false);
3741 add_device_config(DEV_USB, optarg);
3742 break;
3743 case QEMU_OPTION_device:
3744 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3745 optarg, true)) {
3746 exit(1);
3747 }
3748 break;
3749 case QEMU_OPTION_smp:
3750 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3751 optarg, true)) {
3752 exit(1);
3753 }
3754 break;
3755 case QEMU_OPTION_vnc:
3756 vnc_parse(optarg, &error_fatal);
3757 break;
3758 case QEMU_OPTION_no_acpi:
3759 acpi_enabled = 0;
3760 break;
3761 case QEMU_OPTION_no_hpet:
3762 no_hpet = 1;
3763 break;
3764 case QEMU_OPTION_balloon:
3765 if (balloon_parse(optarg) < 0) {
3766 error_report("unknown -balloon argument %s", optarg);
3767 exit(1);
3768 }
3769 break;
3770 case QEMU_OPTION_no_reboot:
3771 no_reboot = 1;
3772 break;
3773 case QEMU_OPTION_no_shutdown:
3774 no_shutdown = 1;
3775 break;
3776 case QEMU_OPTION_show_cursor:
3777 cursor_hide = 0;
3778 break;
3779 case QEMU_OPTION_uuid:
3780 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3781 error_report("failed to parse UUID string: wrong format");
3782 exit(1);
3783 }
3784 qemu_uuid_set = true;
3785 break;
3786 case QEMU_OPTION_option_rom:
3787 if (nb_option_roms >= MAX_OPTION_ROMS) {
3788 error_report("too many option ROMs");
3789 exit(1);
3790 }
3791 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3792 optarg, true);
3793 if (!opts) {
3794 exit(1);
3795 }
3796 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3797 option_rom[nb_option_roms].bootindex =
3798 qemu_opt_get_number(opts, "bootindex", -1);
3799 if (!option_rom[nb_option_roms].name) {
3800 error_report("Option ROM file is not specified");
3801 exit(1);
3802 }
3803 nb_option_roms++;
3804 break;
3805 case QEMU_OPTION_semihosting:
3806 semihosting.enabled = true;
3807 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3808 break;
3809 case QEMU_OPTION_semihosting_config:
3810 semihosting.enabled = true;
3811 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3812 optarg, false);
3813 if (opts != NULL) {
3814 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3815 true);
3816 const char *target = qemu_opt_get(opts, "target");
3817 if (target != NULL) {
3818 if (strcmp("native", target) == 0) {
3819 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3820 } else if (strcmp("gdb", target) == 0) {
3821 semihosting.target = SEMIHOSTING_TARGET_GDB;
3822 } else if (strcmp("auto", target) == 0) {
3823 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3824 } else {
3825 error_report("unsupported semihosting-config %s",
3826 optarg);
3827 exit(1);
3828 }
3829 } else {
3830 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3831 }
3832 /* Set semihosting argument count and vector */
3833 qemu_opt_foreach(opts, add_semihosting_arg,
3834 &semihosting, NULL);
3835 } else {
3836 error_report("unsupported semihosting-config %s", optarg);
3837 exit(1);
3838 }
3839 break;
3840 case QEMU_OPTION_name:
3841 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3842 optarg, true);
3843 if (!opts) {
3844 exit(1);
3845 }
3846 break;
3847 case QEMU_OPTION_prom_env:
3848 if (nb_prom_envs >= MAX_PROM_ENVS) {
3849 error_report("too many prom variables");
3850 exit(1);
3851 }
3852 prom_envs[nb_prom_envs] = optarg;
3853 nb_prom_envs++;
3854 break;
3855 case QEMU_OPTION_old_param:
3856 old_param = 1;
3857 break;
3858 case QEMU_OPTION_clock:
3859 /* Clock options no longer exist. Keep this option for
3860 * backward compatibility.
3861 */
3862 break;
3863 case QEMU_OPTION_startdate:
3864 warn_report("This option is deprecated, use '-rtc base=' instead.");
3865 configure_rtc_date_offset(optarg, 1);
3866 break;
3867 case QEMU_OPTION_rtc:
3868 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3869 false);
3870 if (!opts) {
3871 exit(1);
3872 }
3873 configure_rtc(opts);
3874 break;
3875 case QEMU_OPTION_tb_size:
3876 #ifndef CONFIG_TCG
3877 error_report("TCG is disabled");
3878 exit(1);
3879 #endif
3880 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3881 error_report("Invalid argument to -tb-size");
3882 exit(1);
3883 }
3884 break;
3885 case QEMU_OPTION_icount:
3886 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3887 optarg, true);
3888 if (!icount_opts) {
3889 exit(1);
3890 }
3891 break;
3892 case QEMU_OPTION_incoming:
3893 if (!incoming) {
3894 runstate_set(RUN_STATE_INMIGRATE);
3895 }
3896 incoming = optarg;
3897 break;
3898 case QEMU_OPTION_only_migratable:
3899 /*
3900 * TODO: we can remove this option one day, and we
3901 * should all use:
3902 *
3903 * "-global migration.only-migratable=true"
3904 */
3905 qemu_global_option("migration.only-migratable=true");
3906 break;
3907 case QEMU_OPTION_nodefaults:
3908 has_defaults = 0;
3909 break;
3910 case QEMU_OPTION_xen_domid:
3911 if (!(xen_available())) {
3912 error_report("Option not supported for this target");
3913 exit(1);
3914 }
3915 xen_domid = atoi(optarg);
3916 break;
3917 case QEMU_OPTION_xen_create:
3918 if (!(xen_available())) {
3919 error_report("Option not supported for this target");
3920 exit(1);
3921 }
3922 xen_mode = XEN_CREATE;
3923 break;
3924 case QEMU_OPTION_xen_attach:
3925 if (!(xen_available())) {
3926 error_report("Option not supported for this target");
3927 exit(1);
3928 }
3929 xen_mode = XEN_ATTACH;
3930 break;
3931 case QEMU_OPTION_xen_domid_restrict:
3932 if (!(xen_available())) {
3933 error_report("Option not supported for this target");
3934 exit(1);
3935 }
3936 xen_domid_restrict = true;
3937 break;
3938 case QEMU_OPTION_trace:
3939 g_free(trace_file);
3940 trace_file = trace_opt_parse(optarg);
3941 break;
3942 case QEMU_OPTION_readconfig:
3943 {
3944 int ret = qemu_read_config_file(optarg);
3945 if (ret < 0) {
3946 error_report("read config %s: %s", optarg,
3947 strerror(-ret));
3948 exit(1);
3949 }
3950 break;
3951 }
3952 case QEMU_OPTION_spice:
3953 olist = qemu_find_opts("spice");
3954 if (!olist) {
3955 error_report("spice support is disabled");
3956 exit(1);
3957 }
3958 opts = qemu_opts_parse_noisily(olist, optarg, false);
3959 if (!opts) {
3960 exit(1);
3961 }
3962 display_remote++;
3963 break;
3964 case QEMU_OPTION_writeconfig:
3965 {
3966 FILE *fp;
3967 if (strcmp(optarg, "-") == 0) {
3968 fp = stdout;
3969 } else {
3970 fp = fopen(optarg, "w");
3971 if (fp == NULL) {
3972 error_report("open %s: %s", optarg,
3973 strerror(errno));
3974 exit(1);
3975 }
3976 }
3977 qemu_config_write(fp);
3978 if (fp != stdout) {
3979 fclose(fp);
3980 }
3981 break;
3982 }
3983 case QEMU_OPTION_qtest:
3984 qtest_chrdev = optarg;
3985 break;
3986 case QEMU_OPTION_qtest_log:
3987 qtest_log = optarg;
3988 break;
3989 case QEMU_OPTION_sandbox:
3990 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3991 optarg, true);
3992 if (!opts) {
3993 exit(1);
3994 }
3995 break;
3996 case QEMU_OPTION_add_fd:
3997 #ifndef _WIN32
3998 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3999 optarg, false);
4000 if (!opts) {
4001 exit(1);
4002 }
4003 #else
4004 error_report("File descriptor passing is disabled on this "
4005 "platform");
4006 exit(1);
4007 #endif
4008 break;
4009 case QEMU_OPTION_object:
4010 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4011 optarg, true);
4012 if (!opts) {
4013 exit(1);
4014 }
4015 break;
4016 case QEMU_OPTION_realtime:
4017 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4018 optarg, false);
4019 if (!opts) {
4020 exit(1);
4021 }
4022 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4023 break;
4024 case QEMU_OPTION_msg:
4025 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4026 false);
4027 if (!opts) {
4028 exit(1);
4029 }
4030 configure_msg(opts);
4031 break;
4032 case QEMU_OPTION_dump_vmstate:
4033 if (vmstate_dump_file) {
4034 error_report("only one '-dump-vmstate' "
4035 "option may be given");
4036 exit(1);
4037 }
4038 vmstate_dump_file = fopen(optarg, "w");
4039 if (vmstate_dump_file == NULL) {
4040 error_report("open %s: %s", optarg, strerror(errno));
4041 exit(1);
4042 }
4043 break;
4044 default:
4045 os_parse_cmd_args(popt->index, optarg);
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 machine_class = select_machine();
4058
4059 set_memory_options(&ram_slots, &maxram_size, machine_class);
4060
4061 os_daemonize();
4062 rcu_disable_atfork();
4063
4064 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4065 error_report("could not acquire pid file: %s", strerror(errno));
4066 exit(1);
4067 }
4068
4069 if (qemu_init_main_loop(&main_loop_err)) {
4070 error_report_err(main_loop_err);
4071 exit(1);
4072 }
4073
4074 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4075 parse_sandbox, NULL, NULL)) {
4076 exit(1);
4077 }
4078
4079 if (qemu_opts_foreach(qemu_find_opts("name"),
4080 parse_name, NULL, NULL)) {
4081 exit(1);
4082 }
4083
4084 #ifndef _WIN32
4085 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4086 parse_add_fd, NULL, NULL)) {
4087 exit(1);
4088 }
4089
4090 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4091 cleanup_add_fd, NULL, NULL)) {
4092 exit(1);
4093 }
4094 #endif
4095
4096 current_machine = MACHINE(object_new(object_class_get_name(
4097 OBJECT_CLASS(machine_class))));
4098 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4099 exit(0);
4100 }
4101 object_property_add_child(object_get_root(), "machine",
4102 OBJECT(current_machine), &error_abort);
4103
4104 if (machine_class->minimum_page_bits) {
4105 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4106 /* This would be a board error: specifying a minimum smaller than
4107 * a target's compile-time fixed setting.
4108 */
4109 g_assert_not_reached();
4110 }
4111 }
4112
4113 cpu_exec_init_all();
4114
4115 if (machine_class->hw_version) {
4116 qemu_set_hw_version(machine_class->hw_version);
4117 }
4118
4119 if (cpu_model && is_help_option(cpu_model)) {
4120 list_cpus(stdout, &fprintf, cpu_model);
4121 exit(0);
4122 }
4123
4124 if (!trace_init_backends()) {
4125 exit(1);
4126 }
4127 trace_init_file(trace_file);
4128
4129 /* Open the logfile at this point and set the log mask if necessary.
4130 */
4131 if (log_file) {
4132 qemu_set_log_filename(log_file, &error_fatal);
4133 }
4134
4135 if (log_mask) {
4136 int mask;
4137 mask = qemu_str_to_log_mask(log_mask);
4138 if (!mask) {
4139 qemu_print_log_usage(stdout);
4140 exit(1);
4141 }
4142 qemu_set_log(mask);
4143 } else {
4144 qemu_set_log(0);
4145 }
4146
4147 /* add configured firmware directories */
4148 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4149 for (i = 0; dirs[i] != NULL; i++) {
4150 qemu_add_data_dir(dirs[i]);
4151 }
4152 g_strfreev(dirs);
4153
4154 /* try to find datadir relative to the executable path */
4155 dir = os_find_datadir();
4156 qemu_add_data_dir(dir);
4157 g_free(dir);
4158
4159 /* add the datadir specified when building */
4160 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4161
4162 /* -L help lists the data directories and exits. */
4163 if (list_data_dirs) {
4164 for (i = 0; i < data_dir_idx; i++) {
4165 printf("%s\n", data_dir[i]);
4166 }
4167 exit(0);
4168 }
4169
4170 /* machine_class: default to UP */
4171 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4172 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4173 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4174
4175 /* default to machine_class->default_cpus */
4176 smp_cpus = machine_class->default_cpus;
4177 max_cpus = machine_class->default_cpus;
4178
4179 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4180
4181 /* sanity-check smp_cpus and max_cpus against machine_class */
4182 if (smp_cpus < machine_class->min_cpus) {
4183 error_report("Invalid SMP CPUs %d. The min CPUs "
4184 "supported by machine '%s' is %d", smp_cpus,
4185 machine_class->name, machine_class->min_cpus);
4186 exit(1);
4187 }
4188 if (max_cpus > machine_class->max_cpus) {
4189 error_report("Invalid SMP CPUs %d. The max CPUs "
4190 "supported by machine '%s' is %d", max_cpus,
4191 machine_class->name, machine_class->max_cpus);
4192 exit(1);
4193 }
4194
4195 /*
4196 * Get the default machine options from the machine if it is not already
4197 * specified either by the configuration file or by the command line.
4198 */
4199 if (machine_class->default_machine_opts) {
4200 qemu_opts_set_defaults(qemu_find_opts("machine"),
4201 machine_class->default_machine_opts, 0);
4202 }
4203
4204 qemu_opts_foreach(qemu_find_opts("device"),
4205 default_driver_check, NULL, NULL);
4206 qemu_opts_foreach(qemu_find_opts("global"),
4207 default_driver_check, NULL, NULL);
4208
4209 if (!vga_model && !default_vga) {
4210 vga_interface_type = VGA_DEVICE;
4211 }
4212 if (!has_defaults || machine_class->no_serial) {
4213 default_serial = 0;
4214 }
4215 if (!has_defaults || machine_class->no_parallel) {
4216 default_parallel = 0;
4217 }
4218 if (!has_defaults || !machine_class->use_virtcon) {
4219 default_virtcon = 0;
4220 }
4221 if (!has_defaults || machine_class->no_floppy) {
4222 default_floppy = 0;
4223 }
4224 if (!has_defaults || machine_class->no_cdrom) {
4225 default_cdrom = 0;
4226 }
4227 if (!has_defaults || machine_class->no_sdcard) {
4228 default_sdcard = 0;
4229 }
4230 if (!has_defaults) {
4231 default_monitor = 0;
4232 default_net = 0;
4233 default_vga = 0;
4234 }
4235
4236 if (is_daemonized()) {
4237 /* According to documentation and historically, -nographic redirects
4238 * serial port, parallel port and monitor to stdio, which does not work
4239 * with -daemonize. We can redirect these to null instead, but since
4240 * -nographic is legacy, let's just error out.
4241 * We disallow -nographic only if all other ports are not redirected
4242 * explicitly, to not break existing legacy setups which uses
4243 * -nographic _and_ redirects all ports explicitly - this is valid
4244 * usage, -nographic is just a no-op in this case.
4245 */
4246 if (nographic
4247 && (default_parallel || default_serial
4248 || default_monitor || default_virtcon)) {
4249 error_report("-nographic cannot be used with -daemonize");
4250 exit(1);
4251 }
4252 #ifdef CONFIG_CURSES
4253 if (dpy.type == DISPLAY_TYPE_CURSES) {
4254 error_report("curses display cannot be used with -daemonize");
4255 exit(1);
4256 }
4257 #endif
4258 }
4259
4260 if (nographic) {
4261 if (default_parallel)
4262 add_device_config(DEV_PARALLEL, "null");
4263 if (default_serial && default_monitor) {
4264 add_device_config(DEV_SERIAL, "mon:stdio");
4265 } else if (default_virtcon && default_monitor) {
4266 add_device_config(DEV_VIRTCON, "mon:stdio");
4267 } else {
4268 if (default_serial)
4269 add_device_config(DEV_SERIAL, "stdio");
4270 if (default_virtcon)
4271 add_device_config(DEV_VIRTCON, "stdio");
4272 if (default_monitor)
4273 monitor_parse("stdio", "readline", false);
4274 }
4275 } else {
4276 if (default_serial)
4277 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4278 if (default_parallel)
4279 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4280 if (default_monitor)
4281 monitor_parse("vc:80Cx24C", "readline", false);
4282 if (default_virtcon)
4283 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4284 }
4285
4286 #if defined(CONFIG_VNC)
4287 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4288 display_remote++;
4289 }
4290 #endif
4291 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4292 if (!qemu_display_find_default(&dpy)) {
4293 dpy.type = DISPLAY_TYPE_NONE;
4294 #if defined(CONFIG_VNC)
4295 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4296 #endif
4297 }
4298 }
4299 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4300 dpy.type = DISPLAY_TYPE_NONE;
4301 }
4302
4303 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4304 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4305 "for SDL, ignoring option");
4306 }
4307 if (dpy.has_window_close &&
4308 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4309 error_report("-no-quit is only valid for GTK and SDL, "
4310 "ignoring option");
4311 }
4312
4313 qemu_display_early_init(&dpy);
4314 qemu_console_early_init();
4315
4316 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4317 #if defined(CONFIG_OPENGL)
4318 error_report("OpenGL is not supported by the display");
4319 #else
4320 error_report("OpenGL support is disabled");
4321 #endif
4322 exit(1);
4323 }
4324
4325 page_size_init();
4326 socket_init();
4327
4328 if (qemu_opts_foreach(qemu_find_opts("object"),
4329 user_creatable_add_opts_foreach,
4330 object_create_initial, NULL)) {
4331 exit(1);
4332 }
4333
4334 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4335 chardev_init_func, NULL, NULL)) {
4336 exit(1);
4337 }
4338
4339 #ifdef CONFIG_VIRTFS
4340 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4341 fsdev_init_func, NULL, NULL)) {
4342 exit(1);
4343 }
4344 #endif
4345
4346 if (qemu_opts_foreach(qemu_find_opts("device"),
4347 device_help_func, NULL, NULL)) {
4348 exit(0);
4349 }
4350
4351 machine_opts = qemu_get_machine_opts();
4352 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4353 NULL)) {
4354 object_unref(OBJECT(current_machine));
4355 exit(1);
4356 }
4357
4358 configure_accelerator(current_machine);
4359
4360 /*
4361 * Register all the global properties, including accel properties,
4362 * machine properties, and user-specified ones.
4363 */
4364 register_global_properties(current_machine);
4365
4366 /*
4367 * Migration object can only be created after global properties
4368 * are applied correctly.
4369 */
4370 migration_object_init();
4371
4372 if (qtest_chrdev) {
4373 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4374 }
4375
4376 machine_opts = qemu_get_machine_opts();
4377 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4378 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4379 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4380 bios_name = qemu_opt_get(machine_opts, "firmware");
4381
4382 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4383 if (opts) {
4384 boot_order = qemu_opt_get(opts, "order");
4385 if (boot_order) {
4386 validate_bootdevices(boot_order, &error_fatal);
4387 }
4388
4389 boot_once = qemu_opt_get(opts, "once");
4390 if (boot_once) {
4391 validate_bootdevices(boot_once, &error_fatal);
4392 }
4393
4394 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4395 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4396 }
4397
4398 if (!boot_order) {
4399 boot_order = machine_class->default_boot_order;
4400 }
4401
4402 if (!kernel_cmdline) {
4403 kernel_cmdline = "";
4404 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4405 }
4406
4407 linux_boot = (kernel_filename != NULL);
4408
4409 if (!linux_boot && *kernel_cmdline != '\0') {
4410 error_report("-append only allowed with -kernel option");
4411 exit(1);
4412 }
4413
4414 if (!linux_boot && initrd_filename != NULL) {
4415 error_report("-initrd only allowed with -kernel option");
4416 exit(1);
4417 }
4418
4419 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4420 /* fall back to the -kernel/-append */
4421 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4422 }
4423
4424 os_set_line_buffering();
4425
4426 /* spice needs the timers to be initialized by this point */
4427 qemu_spice_init();
4428
4429 cpu_ticks_init();
4430 if (icount_opts) {
4431 if (!tcg_enabled()) {
4432 error_report("-icount is not allowed with hardware virtualization");
4433 exit(1);
4434 }
4435 configure_icount(icount_opts, &error_abort);
4436 qemu_opts_del(icount_opts);
4437 }
4438
4439 if (tcg_enabled()) {
4440 qemu_tcg_configure(accel_opts, &error_fatal);
4441 }
4442
4443 if (default_net) {
4444 QemuOptsList *net = qemu_find_opts("net");
4445 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4446 #ifdef CONFIG_SLIRP
4447 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4448 #endif
4449 }
4450
4451 colo_info_init();
4452
4453 if (net_init_clients(&err) < 0) {
4454 error_report_err(err);
4455 exit(1);
4456 }
4457
4458 if (qemu_opts_foreach(qemu_find_opts("object"),
4459 user_creatable_add_opts_foreach,
4460 object_create_delayed, NULL)) {
4461 exit(1);
4462 }
4463
4464 if (tpm_init() < 0) {
4465 exit(1);
4466 }
4467
4468 /* init the bluetooth world */
4469 if (foreach_device_config(DEV_BT, bt_parse))
4470 exit(1);
4471
4472 if (!xen_enabled()) {
4473 /* On 32-bit hosts, QEMU is limited by virtual address space */
4474 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4475 error_report("at most 2047 MB RAM can be simulated");
4476 exit(1);
4477 }
4478 }
4479
4480 blk_mig_init();
4481 ram_mig_init();
4482 dirty_bitmap_mig_init();
4483
4484 /* If the currently selected machine wishes to override the units-per-bus
4485 * property of its default HBA interface type, do so now. */
4486 if (machine_class->units_per_default_bus) {
4487 override_max_devs(machine_class->block_default_type,
4488 machine_class->units_per_default_bus);
4489 }
4490
4491 /* open the virtual block devices */
4492 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4493 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4494
4495 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4496 loc_push_restore(&bdo->loc);
4497 qmp_blockdev_add(bdo->bdo, &error_fatal);
4498 loc_pop(&bdo->loc);
4499 qapi_free_BlockdevOptions(bdo->bdo);
4500 g_free(bdo);
4501 }
4502 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4503 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4504 NULL, NULL);
4505 }
4506 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4507 &machine_class->block_default_type, NULL)) {
4508 exit(1);
4509 }
4510
4511 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4512 CDROM_OPTS);
4513 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4514 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4515
4516 /*
4517 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4518 * depends on configure_accelerator() above.
4519 */
4520 monitor_init_globals();
4521
4522 if (qemu_opts_foreach(qemu_find_opts("mon"),
4523 mon_init_func, NULL, NULL)) {
4524 exit(1);
4525 }
4526
4527 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4528 exit(1);
4529 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4530 exit(1);
4531 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4532 exit(1);
4533 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4534 exit(1);
4535
4536 /* If no default VGA is requested, the default is "none". */
4537 if (default_vga) {
4538 if (machine_class->default_display) {
4539 vga_model = machine_class->default_display;
4540 } else if (vga_interface_available(VGA_CIRRUS)) {
4541 vga_model = "cirrus";
4542 } else if (vga_interface_available(VGA_STD)) {
4543 vga_model = "std";
4544 }
4545 }
4546 if (vga_model) {
4547 select_vgahw(vga_model);
4548 }
4549
4550 if (watchdog) {
4551 i = select_watchdog(watchdog);
4552 if (i > 0)
4553 exit (i == 1 ? 1 : 0);
4554 }
4555
4556 /* This checkpoint is required by replay to separate prior clock
4557 reading from the other reads, because timer polling functions query
4558 clock values from the log. */
4559 replay_checkpoint(CHECKPOINT_INIT);
4560 qdev_machine_init();
4561
4562 current_machine->ram_size = ram_size;
4563 current_machine->maxram_size = maxram_size;
4564 current_machine->ram_slots = ram_slots;
4565 current_machine->boot_order = boot_order;
4566
4567 /* parse features once if machine provides default cpu_type */
4568 current_machine->cpu_type = machine_class->default_cpu_type;
4569 if (cpu_model) {
4570 current_machine->cpu_type = parse_cpu_model(cpu_model);
4571 }
4572 parse_numa_opts(current_machine);
4573
4574 machine_run_board_init(current_machine);
4575
4576 realtime_init();
4577
4578 soundhw_init();
4579
4580 if (hax_enabled()) {
4581 hax_sync_vcpus();
4582 }
4583
4584 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4585 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4586 exit(1);
4587 }
4588
4589 /* init USB devices */
4590 if (machine_usb(current_machine)) {
4591 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4592 exit(1);
4593 }
4594
4595 /* Check if IGD GFX passthrough. */
4596 igd_gfx_passthru();
4597
4598 /* init generic devices */
4599 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4600 if (qemu_opts_foreach(qemu_find_opts("device"),
4601 device_init_func, NULL, NULL)) {
4602 exit(1);
4603 }
4604
4605 cpu_synchronize_all_post_init();
4606
4607 rom_reset_order_override();
4608
4609 /* Did we create any drives that we failed to create a device for? */
4610 drive_check_orphaned();
4611
4612 /* Don't warn about the default network setup that you get if
4613 * no command line -net or -netdev options are specified. There
4614 * are two cases that we would otherwise complain about:
4615 * (1) board doesn't support a NIC but the implicit "-net nic"
4616 * requested one
4617 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4618 * sets up a nic that isn't connected to anything.
4619 */
4620 if (!default_net) {
4621 net_check_clients();
4622 }
4623
4624
4625 if (boot_once) {
4626 qemu_boot_set(boot_once, &error_fatal);
4627 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4628 }
4629
4630 /* init local displays */
4631 ds = init_displaystate();
4632 qemu_display_init(ds, &dpy);
4633
4634 /* must be after terminal init, SDL library changes signal handlers */
4635 os_setup_signal_handling();
4636
4637 /* init remote displays */
4638 #ifdef CONFIG_VNC
4639 qemu_opts_foreach(qemu_find_opts("vnc"),
4640 vnc_init_func, NULL, NULL);
4641 #endif
4642
4643 if (using_spice) {
4644 qemu_spice_display_init();
4645 }
4646
4647 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4648 exit(1);
4649 }
4650
4651 qdev_machine_creation_done();
4652
4653 /* TODO: once all bus devices are qdevified, this should be done
4654 * when bus is created by qdev.c */
4655 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4656 qemu_run_machine_init_done_notifiers();
4657
4658 if (rom_check_and_register_reset() != 0) {
4659 error_report("rom check and register reset failed");
4660 exit(1);
4661 }
4662
4663 replay_start();
4664
4665 /* This checkpoint is required by replay to separate prior clock
4666 reading from the other reads, because timer polling functions query
4667 clock values from the log. */
4668 replay_checkpoint(CHECKPOINT_RESET);
4669 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4670 register_global_state();
4671 if (replay_mode != REPLAY_MODE_NONE) {
4672 replay_vmstate_init();
4673 } else if (loadvm) {
4674 Error *local_err = NULL;
4675 if (load_snapshot(loadvm, &local_err) < 0) {
4676 error_report_err(local_err);
4677 autostart = 0;
4678 }
4679 }
4680
4681 qdev_prop_check_globals();
4682 if (vmstate_dump_file) {
4683 /* dump and exit */
4684 dump_vmstate_json_to_file(vmstate_dump_file);
4685 return 0;
4686 }
4687
4688 if (incoming) {
4689 Error *local_err = NULL;
4690 qemu_start_incoming_migration(incoming, &local_err);
4691 if (local_err) {
4692 error_reportf_err(local_err, "-incoming %s: ", incoming);
4693 exit(1);
4694 }
4695 } else if (autostart) {
4696 vm_start();
4697 }
4698
4699 accel_setup_post(current_machine);
4700 os_setup_post();
4701
4702 main_loop();
4703
4704 gdbserver_cleanup();
4705
4706 /* No more vcpu or device emulation activity beyond this point */
4707 vm_shutdown();
4708
4709 bdrv_close_all();
4710
4711 res_free();
4712
4713 /* vhost-user must be cleaned up before chardevs. */
4714 tpm_cleanup();
4715 net_cleanup();
4716 audio_cleanup();
4717 monitor_cleanup();
4718 qemu_chr_cleanup();
4719 user_creatable_cleanup();
4720 migration_object_finalize();
4721 /* TODO: unref root container, check all devices are ok */
4722
4723 return 0;
4724 }
QEmu