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9pfs: drop v9fs_register_transport()
[qemu.git] / vl.c
blobe517a8d99535dfb2453724a892c3d0dce7f5eb4c
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 #include "qemu/osdep.h"
25 #include "qemu-version.h"
26 #include "qemu/cutils.h"
27 #include "qemu/help_option.h"
28 #include "qemu/uuid.h"
29
30 #ifdef CONFIG_SECCOMP
31 #include "sysemu/seccomp.h"
32 #include "sys/prctl.h"
33 #endif
34
35 #ifdef CONFIG_SDL
36 #if defined(__APPLE__) || defined(main)
37 #include <SDL.h>
38 int qemu_main(int argc, char **argv, char **envp);
39 int main(int argc, char **argv)
40 {
41 return qemu_main(argc, argv, NULL);
42 }
43 #undef main
44 #define main qemu_main
45 #endif
46 #endif /* CONFIG_SDL */
47
48 #ifdef CONFIG_COCOA
49 #undef main
50 #define main qemu_main
51 #endif /* CONFIG_COCOA */
52
53
54 #include "qemu/error-report.h"
55 #include "qemu/sockets.h"
56 #include "hw/hw.h"
57 #include "hw/boards.h"
58 #include "sysemu/accel.h"
59 #include "hw/usb.h"
60 #include "hw/isa/isa.h"
61 #include "hw/scsi/scsi.h"
62 #include "hw/display/vga.h"
63 #include "hw/bt.h"
64 #include "sysemu/watchdog.h"
65 #include "hw/smbios/smbios.h"
66 #include "hw/acpi/acpi.h"
67 #include "hw/xen/xen.h"
68 #include "hw/qdev.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "sysemu/bt.h"
72 #include "net/net.h"
73 #include "net/slirp.h"
74 #include "monitor/monitor.h"
75 #include "ui/console.h"
76 #include "ui/input.h"
77 #include "sysemu/sysemu.h"
78 #include "sysemu/numa.h"
79 #include "exec/gdbstub.h"
80 #include "qemu/timer.h"
81 #include "chardev/char.h"
82 #include "qemu/bitmap.h"
83 #include "qemu/log.h"
84 #include "sysemu/blockdev.h"
85 #include "hw/block/block.h"
86 #include "migration/misc.h"
87 #include "migration/snapshot.h"
88 #include "migration/global_state.h"
89 #include "sysemu/tpm.h"
90 #include "sysemu/dma.h"
91 #include "hw/audio/soundhw.h"
92 #include "audio/audio.h"
93 #include "sysemu/cpus.h"
94 #include "migration/colo.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qapi-visit.h"
99 #include "qapi/qmp/qjson.h"
100 #include "qemu/option.h"
101 #include "qemu/config-file.h"
102 #include "qemu-options.h"
103 #include "qmp-commands.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 "qapi-event.h"
125 #include "exec/semihost.h"
126 #include "crypto/init.h"
127 #include "sysemu/replay.h"
128 #include "qapi/qmp/qerror.h"
129 #include "sysemu/iothread.h"
130
131 #define MAX_VIRTIO_CONSOLES 1
132 #define MAX_SCLP_CONSOLES 1
133
134 static const char *data_dir[16];
135 static int data_dir_idx;
136 const char *bios_name = NULL;
137 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
138 int request_opengl = -1;
139 int display_opengl;
140 const char* keyboard_layout = NULL;
141 ram_addr_t ram_size;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 int nb_nics;
146 NICInfo nd_table[MAX_NICS];
147 int autostart;
148 static int rtc_utc = 1;
149 static int rtc_date_offset = -1; /* -1 means no change */
150 QEMUClockType rtc_clock;
151 int vga_interface_type = VGA_NONE;
152 static int full_screen = 0;
153 int no_frame;
154 int no_quit = 0;
155 static bool grab_on_hover;
156 Chardev *serial_hds[MAX_SERIAL_PORTS];
157 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
158 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
159 Chardev *sclp_hds[MAX_SCLP_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_sclp = 1;
212 static int default_monitor = 1;
213 static int default_floppy = 1;
214 static int default_cdrom = 1;
215 static int default_sdcard = 1;
216 static int default_vga = 1;
217 static int default_net = 1;
218
219 static struct {
220 const char *driver;
221 int *flag;
222 } default_list[] = {
223 { .driver = "isa-serial", .flag = &default_serial },
224 { .driver = "isa-parallel", .flag = &default_parallel },
225 { .driver = "isa-fdc", .flag = &default_floppy },
226 { .driver = "floppy", .flag = &default_floppy },
227 { .driver = "ide-cd", .flag = &default_cdrom },
228 { .driver = "ide-hd", .flag = &default_cdrom },
229 { .driver = "ide-drive", .flag = &default_cdrom },
230 { .driver = "scsi-cd", .flag = &default_cdrom },
231 { .driver = "scsi-hd", .flag = &default_cdrom },
232 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
233 { .driver = "virtio-serial", .flag = &default_virtcon },
234 { .driver = "VGA", .flag = &default_vga },
235 { .driver = "isa-vga", .flag = &default_vga },
236 { .driver = "cirrus-vga", .flag = &default_vga },
237 { .driver = "isa-cirrus-vga", .flag = &default_vga },
238 { .driver = "vmware-svga", .flag = &default_vga },
239 { .driver = "qxl-vga", .flag = &default_vga },
240 { .driver = "virtio-vga", .flag = &default_vga },
241 };
242
243 static QemuOptsList qemu_rtc_opts = {
244 .name = "rtc",
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
246 .desc = {
247 {
248 .name = "base",
249 .type = QEMU_OPT_STRING,
250 },{
251 .name = "clock",
252 .type = QEMU_OPT_STRING,
253 },{
254 .name = "driftfix",
255 .type = QEMU_OPT_STRING,
256 },
257 { /* end of list */ }
258 },
259 };
260
261 static QemuOptsList qemu_sandbox_opts = {
262 .name = "sandbox",
263 .implied_opt_name = "enable",
264 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
265 .desc = {
266 {
267 .name = "enable",
268 .type = QEMU_OPT_BOOL,
269 },
270 {
271 .name = "obsolete",
272 .type = QEMU_OPT_STRING,
273 },
274 {
275 .name = "elevateprivileges",
276 .type = QEMU_OPT_STRING,
277 },
278 {
279 .name = "spawn",
280 .type = QEMU_OPT_STRING,
281 },
282 {
283 .name = "resourcecontrol",
284 .type = QEMU_OPT_STRING,
285 },
286 { /* end of list */ }
287 },
288 };
289
290 static QemuOptsList qemu_option_rom_opts = {
291 .name = "option-rom",
292 .implied_opt_name = "romfile",
293 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
294 .desc = {
295 {
296 .name = "bootindex",
297 .type = QEMU_OPT_NUMBER,
298 }, {
299 .name = "romfile",
300 .type = QEMU_OPT_STRING,
301 },
302 { /* end of list */ }
303 },
304 };
305
306 static QemuOptsList qemu_machine_opts = {
307 .name = "machine",
308 .implied_opt_name = "type",
309 .merge_lists = true,
310 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
311 .desc = {
312 /*
313 * no elements => accept any
314 * sanity checking will happen later
315 * when setting machine properties
316 */
317 { }
318 },
319 };
320
321 static QemuOptsList qemu_accel_opts = {
322 .name = "accel",
323 .implied_opt_name = "accel",
324 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
325 .merge_lists = true,
326 .desc = {
327 {
328 .name = "accel",
329 .type = QEMU_OPT_STRING,
330 .help = "Select the type of accelerator",
331 },
332 {
333 .name = "thread",
334 .type = QEMU_OPT_STRING,
335 .help = "Enable/disable multi-threaded TCG",
336 },
337 { /* end of list */ }
338 },
339 };
340
341 static QemuOptsList qemu_boot_opts = {
342 .name = "boot-opts",
343 .implied_opt_name = "order",
344 .merge_lists = true,
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
346 .desc = {
347 {
348 .name = "order",
349 .type = QEMU_OPT_STRING,
350 }, {
351 .name = "once",
352 .type = QEMU_OPT_STRING,
353 }, {
354 .name = "menu",
355 .type = QEMU_OPT_BOOL,
356 }, {
357 .name = "splash",
358 .type = QEMU_OPT_STRING,
359 }, {
360 .name = "splash-time",
361 .type = QEMU_OPT_STRING,
362 }, {
363 .name = "reboot-timeout",
364 .type = QEMU_OPT_STRING,
365 }, {
366 .name = "strict",
367 .type = QEMU_OPT_BOOL,
368 },
369 { /*End of list */ }
370 },
371 };
372
373 static QemuOptsList qemu_add_fd_opts = {
374 .name = "add-fd",
375 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
376 .desc = {
377 {
378 .name = "fd",
379 .type = QEMU_OPT_NUMBER,
380 .help = "file descriptor of which a duplicate is added to fd set",
381 },{
382 .name = "set",
383 .type = QEMU_OPT_NUMBER,
384 .help = "ID of the fd set to add fd to",
385 },{
386 .name = "opaque",
387 .type = QEMU_OPT_STRING,
388 .help = "free-form string used to describe fd",
389 },
390 { /* end of list */ }
391 },
392 };
393
394 static QemuOptsList qemu_object_opts = {
395 .name = "object",
396 .implied_opt_name = "qom-type",
397 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
398 .desc = {
399 { }
400 },
401 };
402
403 static QemuOptsList qemu_tpmdev_opts = {
404 .name = "tpmdev",
405 .implied_opt_name = "type",
406 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
407 .desc = {
408 /* options are defined in the TPM backends */
409 { /* end of list */ }
410 },
411 };
412
413 static QemuOptsList qemu_realtime_opts = {
414 .name = "realtime",
415 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
416 .desc = {
417 {
418 .name = "mlock",
419 .type = QEMU_OPT_BOOL,
420 },
421 { /* end of list */ }
422 },
423 };
424
425 static QemuOptsList qemu_msg_opts = {
426 .name = "msg",
427 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
428 .desc = {
429 {
430 .name = "timestamp",
431 .type = QEMU_OPT_BOOL,
432 },
433 { /* end of list */ }
434 },
435 };
436
437 static QemuOptsList qemu_name_opts = {
438 .name = "name",
439 .implied_opt_name = "guest",
440 .merge_lists = true,
441 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
442 .desc = {
443 {
444 .name = "guest",
445 .type = QEMU_OPT_STRING,
446 .help = "Sets the name of the guest.\n"
447 "This name will be displayed in the SDL window caption.\n"
448 "The name will also be used for the VNC server",
449 }, {
450 .name = "process",
451 .type = QEMU_OPT_STRING,
452 .help = "Sets the name of the QEMU process, as shown in top etc",
453 }, {
454 .name = "debug-threads",
455 .type = QEMU_OPT_BOOL,
456 .help = "When enabled, name the individual threads; defaults off.\n"
457 "NOTE: The thread names are for debugging and not a\n"
458 "stable API.",
459 },
460 { /* End of list */ }
461 },
462 };
463
464 static QemuOptsList qemu_mem_opts = {
465 .name = "memory",
466 .implied_opt_name = "size",
467 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
468 .merge_lists = true,
469 .desc = {
470 {
471 .name = "size",
472 .type = QEMU_OPT_SIZE,
473 },
474 {
475 .name = "slots",
476 .type = QEMU_OPT_NUMBER,
477 },
478 {
479 .name = "maxmem",
480 .type = QEMU_OPT_SIZE,
481 },
482 { /* end of list */ }
483 },
484 };
485
486 static QemuOptsList qemu_icount_opts = {
487 .name = "icount",
488 .implied_opt_name = "shift",
489 .merge_lists = true,
490 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
491 .desc = {
492 {
493 .name = "shift",
494 .type = QEMU_OPT_STRING,
495 }, {
496 .name = "align",
497 .type = QEMU_OPT_BOOL,
498 }, {
499 .name = "sleep",
500 .type = QEMU_OPT_BOOL,
501 }, {
502 .name = "rr",
503 .type = QEMU_OPT_STRING,
504 }, {
505 .name = "rrfile",
506 .type = QEMU_OPT_STRING,
507 }, {
508 .name = "rrsnapshot",
509 .type = QEMU_OPT_STRING,
510 },
511 { /* end of list */ }
512 },
513 };
514
515 static QemuOptsList qemu_semihosting_config_opts = {
516 .name = "semihosting-config",
517 .implied_opt_name = "enable",
518 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
519 .desc = {
520 {
521 .name = "enable",
522 .type = QEMU_OPT_BOOL,
523 }, {
524 .name = "target",
525 .type = QEMU_OPT_STRING,
526 }, {
527 .name = "arg",
528 .type = QEMU_OPT_STRING,
529 },
530 { /* end of list */ }
531 },
532 };
533
534 static QemuOptsList qemu_fw_cfg_opts = {
535 .name = "fw_cfg",
536 .implied_opt_name = "name",
537 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
538 .desc = {
539 {
540 .name = "name",
541 .type = QEMU_OPT_STRING,
542 .help = "Sets the fw_cfg name of the blob to be inserted",
543 }, {
544 .name = "file",
545 .type = QEMU_OPT_STRING,
546 .help = "Sets the name of the file from which\n"
547 "the fw_cfg blob will be loaded",
548 }, {
549 .name = "string",
550 .type = QEMU_OPT_STRING,
551 .help = "Sets content of the blob to be inserted from a string",
552 },
553 { /* end of list */ }
554 },
555 };
556
557 /**
558 * Get machine options
559 *
560 * Returns: machine options (never null).
561 */
562 QemuOpts *qemu_get_machine_opts(void)
563 {
564 return qemu_find_opts_singleton("machine");
565 }
566
567 const char *qemu_get_vm_name(void)
568 {
569 return qemu_name;
570 }
571
572 static void res_free(void)
573 {
574 g_free(boot_splash_filedata);
575 boot_splash_filedata = NULL;
576 }
577
578 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
579 {
580 const char *driver = qemu_opt_get(opts, "driver");
581 int i;
582
583 if (!driver)
584 return 0;
585 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
586 if (strcmp(default_list[i].driver, driver) != 0)
587 continue;
588 *(default_list[i].flag) = 0;
589 }
590 return 0;
591 }
592
593 /***********************************************************/
594 /* QEMU state */
595
596 static RunState current_run_state = RUN_STATE_PRELAUNCH;
597
598 /* We use RUN_STATE__MAX but any invalid value will do */
599 static RunState vmstop_requested = RUN_STATE__MAX;
600 static QemuMutex vmstop_lock;
601
602 typedef struct {
603 RunState from;
604 RunState to;
605 } RunStateTransition;
606
607 static const RunStateTransition runstate_transitions_def[] = {
608 /* from -> to */
609 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
610 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
612
613 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
614 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
615 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
616 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
617 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
618 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
619 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
620 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
621 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
623 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
624 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
625
626 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
627 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
628 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
629
630 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
631 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
632 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
633
634 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
635 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
636 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
637 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
638 { RUN_STATE_PAUSED, RUN_STATE_COLO},
639
640 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
641 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
642 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
643
644 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
645 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
646 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
647
648 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
652 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
653
654 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
655 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
656
657 { RUN_STATE_COLO, RUN_STATE_RUNNING },
658
659 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
660 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
661 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
662 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
663 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
664 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
665 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
666 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
667 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
668 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
669 { RUN_STATE_RUNNING, RUN_STATE_COLO},
670
671 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
672
673 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
674 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
675 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
676
677 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
678 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
679 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
680 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
681 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
682 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
683
684 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
685 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
686 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
687 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
688
689 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
690 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
691 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
692
693 { RUN_STATE__MAX, RUN_STATE__MAX },
694 };
695
696 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
697
698 bool runstate_check(RunState state)
699 {
700 return current_run_state == state;
701 }
702
703 bool runstate_store(char *str, size_t size)
704 {
705 const char *state = RunState_str(current_run_state);
706 size_t len = strlen(state) + 1;
707
708 if (len > size) {
709 return false;
710 }
711 memcpy(str, state, len);
712 return true;
713 }
714
715 static void runstate_init(void)
716 {
717 const RunStateTransition *p;
718
719 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
720 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
721 runstate_valid_transitions[p->from][p->to] = true;
722 }
723
724 qemu_mutex_init(&vmstop_lock);
725 }
726
727 /* This function will abort() on invalid state transitions */
728 void runstate_set(RunState new_state)
729 {
730 assert(new_state < RUN_STATE__MAX);
731
732 if (current_run_state == new_state) {
733 return;
734 }
735
736 if (!runstate_valid_transitions[current_run_state][new_state]) {
737 error_report("invalid runstate transition: '%s' -> '%s'",
738 RunState_str(current_run_state),
739 RunState_str(new_state));
740 abort();
741 }
742 trace_runstate_set(new_state);
743 current_run_state = new_state;
744 }
745
746 int runstate_is_running(void)
747 {
748 return runstate_check(RUN_STATE_RUNNING);
749 }
750
751 bool runstate_needs_reset(void)
752 {
753 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
754 runstate_check(RUN_STATE_SHUTDOWN);
755 }
756
757 StatusInfo *qmp_query_status(Error **errp)
758 {
759 StatusInfo *info = g_malloc0(sizeof(*info));
760
761 info->running = runstate_is_running();
762 info->singlestep = singlestep;
763 info->status = current_run_state;
764
765 return info;
766 }
767
768 bool qemu_vmstop_requested(RunState *r)
769 {
770 qemu_mutex_lock(&vmstop_lock);
771 *r = vmstop_requested;
772 vmstop_requested = RUN_STATE__MAX;
773 qemu_mutex_unlock(&vmstop_lock);
774 return *r < RUN_STATE__MAX;
775 }
776
777 void qemu_system_vmstop_request_prepare(void)
778 {
779 qemu_mutex_lock(&vmstop_lock);
780 }
781
782 void qemu_system_vmstop_request(RunState state)
783 {
784 vmstop_requested = state;
785 qemu_mutex_unlock(&vmstop_lock);
786 qemu_notify_event();
787 }
788
789 /***********************************************************/
790 /* real time host monotonic timer */
791
792 static time_t qemu_time(void)
793 {
794 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
795 }
796
797 /***********************************************************/
798 /* host time/date access */
799 void qemu_get_timedate(struct tm *tm, int offset)
800 {
801 time_t ti = qemu_time();
802
803 ti += offset;
804 if (rtc_date_offset == -1) {
805 if (rtc_utc)
806 gmtime_r(&ti, tm);
807 else
808 localtime_r(&ti, tm);
809 } else {
810 ti -= rtc_date_offset;
811 gmtime_r(&ti, tm);
812 }
813 }
814
815 int qemu_timedate_diff(struct tm *tm)
816 {
817 time_t seconds;
818
819 if (rtc_date_offset == -1)
820 if (rtc_utc)
821 seconds = mktimegm(tm);
822 else {
823 struct tm tmp = *tm;
824 tmp.tm_isdst = -1; /* use timezone to figure it out */
825 seconds = mktime(&tmp);
826 }
827 else
828 seconds = mktimegm(tm) + rtc_date_offset;
829
830 return seconds - qemu_time();
831 }
832
833 static void configure_rtc_date_offset(const char *startdate, int legacy)
834 {
835 time_t rtc_start_date;
836 struct tm tm;
837
838 if (!strcmp(startdate, "now") && legacy) {
839 rtc_date_offset = -1;
840 } else {
841 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
842 &tm.tm_year,
843 &tm.tm_mon,
844 &tm.tm_mday,
845 &tm.tm_hour,
846 &tm.tm_min,
847 &tm.tm_sec) == 6) {
848 /* OK */
849 } else if (sscanf(startdate, "%d-%d-%d",
850 &tm.tm_year,
851 &tm.tm_mon,
852 &tm.tm_mday) == 3) {
853 tm.tm_hour = 0;
854 tm.tm_min = 0;
855 tm.tm_sec = 0;
856 } else {
857 goto date_fail;
858 }
859 tm.tm_year -= 1900;
860 tm.tm_mon--;
861 rtc_start_date = mktimegm(&tm);
862 if (rtc_start_date == -1) {
863 date_fail:
864 error_report("invalid date format");
865 error_printf("valid formats: "
866 "'2006-06-17T16:01:21' or '2006-06-17'\n");
867 exit(1);
868 }
869 rtc_date_offset = qemu_time() - rtc_start_date;
870 }
871 }
872
873 static void configure_rtc(QemuOpts *opts)
874 {
875 const char *value;
876
877 value = qemu_opt_get(opts, "base");
878 if (value) {
879 if (!strcmp(value, "utc")) {
880 rtc_utc = 1;
881 } else if (!strcmp(value, "localtime")) {
882 Error *blocker = NULL;
883 rtc_utc = 0;
884 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
885 "-rtc base=localtime");
886 replay_add_blocker(blocker);
887 } else {
888 configure_rtc_date_offset(value, 0);
889 }
890 }
891 value = qemu_opt_get(opts, "clock");
892 if (value) {
893 if (!strcmp(value, "host")) {
894 rtc_clock = QEMU_CLOCK_HOST;
895 } else if (!strcmp(value, "rt")) {
896 rtc_clock = QEMU_CLOCK_REALTIME;
897 } else if (!strcmp(value, "vm")) {
898 rtc_clock = QEMU_CLOCK_VIRTUAL;
899 } else {
900 error_report("invalid option value '%s'", value);
901 exit(1);
902 }
903 }
904 value = qemu_opt_get(opts, "driftfix");
905 if (value) {
906 if (!strcmp(value, "slew")) {
907 static GlobalProperty slew_lost_ticks = {
908 .driver = "mc146818rtc",
909 .property = "lost_tick_policy",
910 .value = "slew",
911 };
912
913 qdev_prop_register_global(&slew_lost_ticks);
914 } else if (!strcmp(value, "none")) {
915 /* discard is default */
916 } else {
917 error_report("invalid option value '%s'", value);
918 exit(1);
919 }
920 }
921 }
922
923 /***********************************************************/
924 /* Bluetooth support */
925 static int nb_hcis;
926 static int cur_hci;
927 static struct HCIInfo *hci_table[MAX_NICS];
928
929 struct HCIInfo *qemu_next_hci(void)
930 {
931 if (cur_hci == nb_hcis)
932 return &null_hci;
933
934 return hci_table[cur_hci++];
935 }
936
937 static int bt_hci_parse(const char *str)
938 {
939 struct HCIInfo *hci;
940 bdaddr_t bdaddr;
941
942 if (nb_hcis >= MAX_NICS) {
943 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
944 return -1;
945 }
946
947 hci = hci_init(str);
948 if (!hci)
949 return -1;
950
951 bdaddr.b[0] = 0x52;
952 bdaddr.b[1] = 0x54;
953 bdaddr.b[2] = 0x00;
954 bdaddr.b[3] = 0x12;
955 bdaddr.b[4] = 0x34;
956 bdaddr.b[5] = 0x56 + nb_hcis;
957 hci->bdaddr_set(hci, bdaddr.b);
958
959 hci_table[nb_hcis++] = hci;
960
961 return 0;
962 }
963
964 static void bt_vhci_add(int vlan_id)
965 {
966 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
967
968 if (!vlan->slave)
969 warn_report("adding a VHCI to an empty scatternet %i",
970 vlan_id);
971
972 bt_vhci_init(bt_new_hci(vlan));
973 }
974
975 static struct bt_device_s *bt_device_add(const char *opt)
976 {
977 struct bt_scatternet_s *vlan;
978 int vlan_id = 0;
979 char *endp = strstr(opt, ",vlan=");
980 int len = (endp ? endp - opt : strlen(opt)) + 1;
981 char devname[10];
982
983 pstrcpy(devname, MIN(sizeof(devname), len), opt);
984
985 if (endp) {
986 vlan_id = strtol(endp + 6, &endp, 0);
987 if (*endp) {
988 error_report("unrecognised bluetooth vlan Id");
989 return 0;
990 }
991 }
992
993 vlan = qemu_find_bt_vlan(vlan_id);
994
995 if (!vlan->slave)
996 warn_report("adding a slave device to an empty scatternet %i",
997 vlan_id);
998
999 if (!strcmp(devname, "keyboard"))
1000 return bt_keyboard_init(vlan);
1001
1002 error_report("unsupported bluetooth device '%s'", devname);
1003 return 0;
1004 }
1005
1006 static int bt_parse(const char *opt)
1007 {
1008 const char *endp, *p;
1009 int vlan;
1010
1011 if (strstart(opt, "hci", &endp)) {
1012 if (!*endp || *endp == ',') {
1013 if (*endp)
1014 if (!strstart(endp, ",vlan=", 0))
1015 opt = endp + 1;
1016
1017 return bt_hci_parse(opt);
1018 }
1019 } else if (strstart(opt, "vhci", &endp)) {
1020 if (!*endp || *endp == ',') {
1021 if (*endp) {
1022 if (strstart(endp, ",vlan=", &p)) {
1023 vlan = strtol(p, (char **) &endp, 0);
1024 if (*endp) {
1025 error_report("bad scatternet '%s'", p);
1026 return 1;
1027 }
1028 } else {
1029 error_report("bad parameter '%s'", endp + 1);
1030 return 1;
1031 }
1032 } else
1033 vlan = 0;
1034
1035 bt_vhci_add(vlan);
1036 return 0;
1037 }
1038 } else if (strstart(opt, "device:", &endp))
1039 return !bt_device_add(endp);
1040
1041 error_report("bad bluetooth parameter '%s'", opt);
1042 return 1;
1043 }
1044
1045 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1046 {
1047 if (qemu_opt_get_bool(opts, "enable", false)) {
1048 #ifdef CONFIG_SECCOMP
1049 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1050 | QEMU_SECCOMP_SET_OBSOLETE;
1051 const char *value = NULL;
1052
1053 value = qemu_opt_get(opts, "obsolete");
1054 if (value) {
1055 if (g_str_equal(value, "allow")) {
1056 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1057 } else if (g_str_equal(value, "deny")) {
1058 /* this is the default option, this if is here
1059 * to provide a little bit of consistency for
1060 * the command line */
1061 } else {
1062 error_report("invalid argument for obsolete");
1063 return -1;
1064 }
1065 }
1066
1067 value = qemu_opt_get(opts, "elevateprivileges");
1068 if (value) {
1069 if (g_str_equal(value, "deny")) {
1070 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1071 } else if (g_str_equal(value, "children")) {
1072 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1073
1074 /* calling prctl directly because we're
1075 * not sure if host has CAP_SYS_ADMIN set*/
1076 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1077 error_report("failed to set no_new_privs "
1078 "aborting");
1079 return -1;
1080 }
1081 } else if (g_str_equal(value, "allow")) {
1082 /* default value */
1083 } else {
1084 error_report("invalid argument for elevateprivileges");
1085 return -1;
1086 }
1087 }
1088
1089 value = qemu_opt_get(opts, "spawn");
1090 if (value) {
1091 if (g_str_equal(value, "deny")) {
1092 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1093 } else if (g_str_equal(value, "allow")) {
1094 /* default value */
1095 } else {
1096 error_report("invalid argument for spawn");
1097 return -1;
1098 }
1099 }
1100
1101 value = qemu_opt_get(opts, "resourcecontrol");
1102 if (value) {
1103 if (g_str_equal(value, "deny")) {
1104 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1105 } else if (g_str_equal(value, "allow")) {
1106 /* default value */
1107 } else {
1108 error_report("invalid argument for resourcecontrol");
1109 return -1;
1110 }
1111 }
1112
1113 if (seccomp_start(seccomp_opts) < 0) {
1114 error_report("failed to install seccomp syscall filter "
1115 "in the kernel");
1116 return -1;
1117 }
1118 #else
1119 error_report("seccomp support is disabled");
1120 return -1;
1121 #endif
1122 }
1123
1124 return 0;
1125 }
1126
1127 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1128 {
1129 const char *proc_name;
1130
1131 if (qemu_opt_get(opts, "debug-threads")) {
1132 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1133 }
1134 qemu_name = qemu_opt_get(opts, "guest");
1135
1136 proc_name = qemu_opt_get(opts, "process");
1137 if (proc_name) {
1138 os_set_proc_name(proc_name);
1139 }
1140
1141 return 0;
1142 }
1143
1144 bool defaults_enabled(void)
1145 {
1146 return has_defaults;
1147 }
1148
1149 #ifndef _WIN32
1150 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1151 {
1152 int fd, dupfd, flags;
1153 int64_t fdset_id;
1154 const char *fd_opaque = NULL;
1155 AddfdInfo *fdinfo;
1156
1157 fd = qemu_opt_get_number(opts, "fd", -1);
1158 fdset_id = qemu_opt_get_number(opts, "set", -1);
1159 fd_opaque = qemu_opt_get(opts, "opaque");
1160
1161 if (fd < 0) {
1162 error_report("fd option is required and must be non-negative");
1163 return -1;
1164 }
1165
1166 if (fd <= STDERR_FILENO) {
1167 error_report("fd cannot be a standard I/O stream");
1168 return -1;
1169 }
1170
1171 /*
1172 * All fds inherited across exec() necessarily have FD_CLOEXEC
1173 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1174 */
1175 flags = fcntl(fd, F_GETFD);
1176 if (flags == -1 || (flags & FD_CLOEXEC)) {
1177 error_report("fd is not valid or already in use");
1178 return -1;
1179 }
1180
1181 if (fdset_id < 0) {
1182 error_report("set option is required and must be non-negative");
1183 return -1;
1184 }
1185
1186 #ifdef F_DUPFD_CLOEXEC
1187 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1188 #else
1189 dupfd = dup(fd);
1190 if (dupfd != -1) {
1191 qemu_set_cloexec(dupfd);
1192 }
1193 #endif
1194 if (dupfd == -1) {
1195 error_report("error duplicating fd: %s", strerror(errno));
1196 return -1;
1197 }
1198
1199 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1200 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1201 &error_abort);
1202 g_free(fdinfo);
1203
1204 return 0;
1205 }
1206
1207 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1208 {
1209 int fd;
1210
1211 fd = qemu_opt_get_number(opts, "fd", -1);
1212 close(fd);
1213
1214 return 0;
1215 }
1216 #endif
1217
1218 /***********************************************************/
1219 /* QEMU Block devices */
1220
1221 #define HD_OPTS "media=disk"
1222 #define CDROM_OPTS "media=cdrom"
1223 #define FD_OPTS ""
1224 #define PFLASH_OPTS ""
1225 #define MTD_OPTS ""
1226 #define SD_OPTS ""
1227
1228 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1229 {
1230 BlockInterfaceType *block_default_type = opaque;
1231
1232 return drive_new(opts, *block_default_type) == NULL;
1233 }
1234
1235 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1236 {
1237 if (qemu_opt_get(opts, "snapshot") == NULL) {
1238 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1239 }
1240 return 0;
1241 }
1242
1243 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1244 int index, const char *optstr)
1245 {
1246 QemuOpts *opts;
1247 DriveInfo *dinfo;
1248
1249 if (!enable || drive_get_by_index(type, index)) {
1250 return;
1251 }
1252
1253 opts = drive_add(type, index, NULL, optstr);
1254 if (snapshot) {
1255 drive_enable_snapshot(NULL, opts, NULL);
1256 }
1257
1258 dinfo = drive_new(opts, type);
1259 if (!dinfo) {
1260 exit(1);
1261 }
1262 dinfo->is_default = true;
1263
1264 }
1265
1266 static QemuOptsList qemu_smp_opts = {
1267 .name = "smp-opts",
1268 .implied_opt_name = "cpus",
1269 .merge_lists = true,
1270 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1271 .desc = {
1272 {
1273 .name = "cpus",
1274 .type = QEMU_OPT_NUMBER,
1275 }, {
1276 .name = "sockets",
1277 .type = QEMU_OPT_NUMBER,
1278 }, {
1279 .name = "cores",
1280 .type = QEMU_OPT_NUMBER,
1281 }, {
1282 .name = "threads",
1283 .type = QEMU_OPT_NUMBER,
1284 }, {
1285 .name = "maxcpus",
1286 .type = QEMU_OPT_NUMBER,
1287 },
1288 { /*End of list */ }
1289 },
1290 };
1291
1292 static void smp_parse(QemuOpts *opts)
1293 {
1294 if (opts) {
1295 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1296 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1297 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1298 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1299
1300 /* compute missing values, prefer sockets over cores over threads */
1301 if (cpus == 0 || sockets == 0) {
1302 sockets = sockets > 0 ? sockets : 1;
1303 cores = cores > 0 ? cores : 1;
1304 threads = threads > 0 ? threads : 1;
1305 if (cpus == 0) {
1306 cpus = cores * threads * sockets;
1307 }
1308 } else if (cores == 0) {
1309 threads = threads > 0 ? threads : 1;
1310 cores = cpus / (sockets * threads);
1311 cores = cores > 0 ? cores : 1;
1312 } else if (threads == 0) {
1313 threads = cpus / (cores * sockets);
1314 threads = threads > 0 ? threads : 1;
1315 } else if (sockets * cores * threads < cpus) {
1316 error_report("cpu topology: "
1317 "sockets (%u) * cores (%u) * threads (%u) < "
1318 "smp_cpus (%u)",
1319 sockets, cores, threads, cpus);
1320 exit(1);
1321 }
1322
1323 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1324
1325 if (max_cpus < cpus) {
1326 error_report("maxcpus must be equal to or greater than smp");
1327 exit(1);
1328 }
1329
1330 if (sockets * cores * threads > max_cpus) {
1331 error_report("cpu topology: "
1332 "sockets (%u) * cores (%u) * threads (%u) > "
1333 "maxcpus (%u)",
1334 sockets, cores, threads, max_cpus);
1335 exit(1);
1336 }
1337
1338 smp_cpus = cpus;
1339 smp_cores = cores;
1340 smp_threads = threads;
1341 }
1342
1343 if (smp_cpus > 1) {
1344 Error *blocker = NULL;
1345 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1346 replay_add_blocker(blocker);
1347 }
1348 }
1349
1350 static void realtime_init(void)
1351 {
1352 if (enable_mlock) {
1353 if (os_mlock() < 0) {
1354 error_report("locking memory failed");
1355 exit(1);
1356 }
1357 }
1358 }
1359
1360
1361 static void configure_msg(QemuOpts *opts)
1362 {
1363 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1364 }
1365
1366 /***********************************************************/
1367 /* Semihosting */
1368
1369 typedef struct SemihostingConfig {
1370 bool enabled;
1371 SemihostingTarget target;
1372 const char **argv;
1373 int argc;
1374 const char *cmdline; /* concatenated argv */
1375 } SemihostingConfig;
1376
1377 static SemihostingConfig semihosting;
1378
1379 bool semihosting_enabled(void)
1380 {
1381 return semihosting.enabled;
1382 }
1383
1384 SemihostingTarget semihosting_get_target(void)
1385 {
1386 return semihosting.target;
1387 }
1388
1389 const char *semihosting_get_arg(int i)
1390 {
1391 if (i >= semihosting.argc) {
1392 return NULL;
1393 }
1394 return semihosting.argv[i];
1395 }
1396
1397 int semihosting_get_argc(void)
1398 {
1399 return semihosting.argc;
1400 }
1401
1402 const char *semihosting_get_cmdline(void)
1403 {
1404 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1405 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1406 }
1407 return semihosting.cmdline;
1408 }
1409
1410 static int add_semihosting_arg(void *opaque,
1411 const char *name, const char *val,
1412 Error **errp)
1413 {
1414 SemihostingConfig *s = opaque;
1415 if (strcmp(name, "arg") == 0) {
1416 s->argc++;
1417 /* one extra element as g_strjoinv() expects NULL-terminated array */
1418 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1419 s->argv[s->argc - 1] = val;
1420 s->argv[s->argc] = NULL;
1421 }
1422 return 0;
1423 }
1424
1425 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1426 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1427 {
1428 char *cmd_token;
1429
1430 /* argv[0] */
1431 add_semihosting_arg(&semihosting, "arg", file, NULL);
1432
1433 /* split -append and initialize argv[1..n] */
1434 cmd_token = strtok(g_strdup(cmd), " ");
1435 while (cmd_token) {
1436 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1437 cmd_token = strtok(NULL, " ");
1438 }
1439 }
1440
1441 /* Now we still need this for compatibility with XEN. */
1442 bool has_igd_gfx_passthru;
1443 static void igd_gfx_passthru(void)
1444 {
1445 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1446 }
1447
1448 /***********************************************************/
1449 /* USB devices */
1450
1451 static int usb_device_add(const char *devname)
1452 {
1453 USBDevice *dev = NULL;
1454
1455 if (!machine_usb(current_machine)) {
1456 return -1;
1457 }
1458
1459 dev = usbdevice_create(devname);
1460 if (!dev)
1461 return -1;
1462
1463 return 0;
1464 }
1465
1466 static int usb_parse(const char *cmdline)
1467 {
1468 int r;
1469 r = usb_device_add(cmdline);
1470 if (r < 0) {
1471 error_report("could not add USB device '%s'", cmdline);
1472 }
1473 return r;
1474 }
1475
1476 /***********************************************************/
1477 /* machine registration */
1478
1479 MachineState *current_machine;
1480
1481 static MachineClass *find_machine(const char *name)
1482 {
1483 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1484 MachineClass *mc = NULL;
1485
1486 for (el = machines; el; el = el->next) {
1487 MachineClass *temp = el->data;
1488
1489 if (!strcmp(temp->name, name)) {
1490 mc = temp;
1491 break;
1492 }
1493 if (temp->alias &&
1494 !strcmp(temp->alias, name)) {
1495 mc = temp;
1496 break;
1497 }
1498 }
1499
1500 g_slist_free(machines);
1501 return mc;
1502 }
1503
1504 MachineClass *find_default_machine(void)
1505 {
1506 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1507 MachineClass *mc = NULL;
1508
1509 for (el = machines; el; el = el->next) {
1510 MachineClass *temp = el->data;
1511
1512 if (temp->is_default) {
1513 mc = temp;
1514 break;
1515 }
1516 }
1517
1518 g_slist_free(machines);
1519 return mc;
1520 }
1521
1522 MachineInfoList *qmp_query_machines(Error **errp)
1523 {
1524 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1525 MachineInfoList *mach_list = NULL;
1526
1527 for (el = machines; el; el = el->next) {
1528 MachineClass *mc = el->data;
1529 MachineInfoList *entry;
1530 MachineInfo *info;
1531
1532 info = g_malloc0(sizeof(*info));
1533 if (mc->is_default) {
1534 info->has_is_default = true;
1535 info->is_default = true;
1536 }
1537
1538 if (mc->alias) {
1539 info->has_alias = true;
1540 info->alias = g_strdup(mc->alias);
1541 }
1542
1543 info->name = g_strdup(mc->name);
1544 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1545 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1546
1547 entry = g_malloc0(sizeof(*entry));
1548 entry->value = info;
1549 entry->next = mach_list;
1550 mach_list = entry;
1551 }
1552
1553 g_slist_free(machines);
1554 return mach_list;
1555 }
1556
1557 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1558 {
1559 ObjectProperty *prop;
1560 ObjectPropertyIterator iter;
1561
1562 if (!qemu_opt_has_help_opt(opts)) {
1563 return 0;
1564 }
1565
1566 object_property_iter_init(&iter, OBJECT(machine));
1567 while ((prop = object_property_iter_next(&iter))) {
1568 if (!prop->set) {
1569 continue;
1570 }
1571
1572 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1573 prop->name, prop->type);
1574 if (prop->description) {
1575 error_printf(" (%s)\n", prop->description);
1576 } else {
1577 error_printf("\n");
1578 }
1579 }
1580
1581 return 1;
1582 }
1583
1584 /***********************************************************/
1585 /* main execution loop */
1586
1587 struct vm_change_state_entry {
1588 VMChangeStateHandler *cb;
1589 void *opaque;
1590 QLIST_ENTRY (vm_change_state_entry) entries;
1591 };
1592
1593 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1594
1595 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1596 void *opaque)
1597 {
1598 VMChangeStateEntry *e;
1599
1600 e = g_malloc0(sizeof (*e));
1601
1602 e->cb = cb;
1603 e->opaque = opaque;
1604 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1605 return e;
1606 }
1607
1608 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1609 {
1610 QLIST_REMOVE (e, entries);
1611 g_free (e);
1612 }
1613
1614 void vm_state_notify(int running, RunState state)
1615 {
1616 VMChangeStateEntry *e, *next;
1617
1618 trace_vm_state_notify(running, state);
1619
1620 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1621 e->cb(e->opaque, running, state);
1622 }
1623 }
1624
1625 static ShutdownCause reset_requested;
1626 static ShutdownCause shutdown_requested;
1627 static int shutdown_signal;
1628 static pid_t shutdown_pid;
1629 static int powerdown_requested;
1630 static int debug_requested;
1631 static int suspend_requested;
1632 static WakeupReason wakeup_reason;
1633 static NotifierList powerdown_notifiers =
1634 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1635 static NotifierList suspend_notifiers =
1636 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1637 static NotifierList wakeup_notifiers =
1638 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1639 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1640
1641 ShutdownCause qemu_shutdown_requested_get(void)
1642 {
1643 return shutdown_requested;
1644 }
1645
1646 ShutdownCause qemu_reset_requested_get(void)
1647 {
1648 return reset_requested;
1649 }
1650
1651 static int qemu_shutdown_requested(void)
1652 {
1653 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1654 }
1655
1656 static void qemu_kill_report(void)
1657 {
1658 if (!qtest_driver() && shutdown_signal) {
1659 if (shutdown_pid == 0) {
1660 /* This happens for eg ^C at the terminal, so it's worth
1661 * avoiding printing an odd message in that case.
1662 */
1663 error_report("terminating on signal %d", shutdown_signal);
1664 } else {
1665 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1666
1667 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1668 shutdown_signal, shutdown_pid,
1669 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1670 g_free(shutdown_cmd);
1671 }
1672 shutdown_signal = 0;
1673 }
1674 }
1675
1676 static ShutdownCause qemu_reset_requested(void)
1677 {
1678 ShutdownCause r = reset_requested;
1679
1680 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1681 reset_requested = SHUTDOWN_CAUSE_NONE;
1682 return r;
1683 }
1684 return SHUTDOWN_CAUSE_NONE;
1685 }
1686
1687 static int qemu_suspend_requested(void)
1688 {
1689 int r = suspend_requested;
1690 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1691 suspend_requested = 0;
1692 return r;
1693 }
1694 return false;
1695 }
1696
1697 static WakeupReason qemu_wakeup_requested(void)
1698 {
1699 return wakeup_reason;
1700 }
1701
1702 static int qemu_powerdown_requested(void)
1703 {
1704 int r = powerdown_requested;
1705 powerdown_requested = 0;
1706 return r;
1707 }
1708
1709 static int qemu_debug_requested(void)
1710 {
1711 int r = debug_requested;
1712 debug_requested = 0;
1713 return r;
1714 }
1715
1716 /*
1717 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1718 */
1719 void qemu_system_reset(ShutdownCause reason)
1720 {
1721 MachineClass *mc;
1722
1723 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1724
1725 cpu_synchronize_all_states();
1726
1727 if (mc && mc->reset) {
1728 mc->reset();
1729 } else {
1730 qemu_devices_reset();
1731 }
1732 if (reason) {
1733 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1734 &error_abort);
1735 }
1736 cpu_synchronize_all_post_reset();
1737 }
1738
1739 void qemu_system_guest_panicked(GuestPanicInformation *info)
1740 {
1741 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed\n");
1742
1743 if (current_cpu) {
1744 current_cpu->crash_occurred = true;
1745 }
1746 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1747 !!info, info, &error_abort);
1748 vm_stop(RUN_STATE_GUEST_PANICKED);
1749 if (!no_shutdown) {
1750 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1751 !!info, info, &error_abort);
1752 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1753 }
1754
1755 if (info) {
1756 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1757 qemu_log_mask(LOG_GUEST_ERROR, "HV crash parameters: (%#"PRIx64
1758 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1759 info->u.hyper_v.arg1,
1760 info->u.hyper_v.arg2,
1761 info->u.hyper_v.arg3,
1762 info->u.hyper_v.arg4,
1763 info->u.hyper_v.arg5);
1764 }
1765 qapi_free_GuestPanicInformation(info);
1766 }
1767 }
1768
1769 void qemu_system_reset_request(ShutdownCause reason)
1770 {
1771 if (no_reboot) {
1772 shutdown_requested = reason;
1773 } else {
1774 reset_requested = reason;
1775 }
1776 cpu_stop_current();
1777 qemu_notify_event();
1778 }
1779
1780 static void qemu_system_suspend(void)
1781 {
1782 pause_all_vcpus();
1783 notifier_list_notify(&suspend_notifiers, NULL);
1784 runstate_set(RUN_STATE_SUSPENDED);
1785 qapi_event_send_suspend(&error_abort);
1786 }
1787
1788 void qemu_system_suspend_request(void)
1789 {
1790 if (runstate_check(RUN_STATE_SUSPENDED)) {
1791 return;
1792 }
1793 suspend_requested = 1;
1794 cpu_stop_current();
1795 qemu_notify_event();
1796 }
1797
1798 void qemu_register_suspend_notifier(Notifier *notifier)
1799 {
1800 notifier_list_add(&suspend_notifiers, notifier);
1801 }
1802
1803 void qemu_system_wakeup_request(WakeupReason reason)
1804 {
1805 trace_system_wakeup_request(reason);
1806
1807 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1808 return;
1809 }
1810 if (!(wakeup_reason_mask & (1 << reason))) {
1811 return;
1812 }
1813 runstate_set(RUN_STATE_RUNNING);
1814 wakeup_reason = reason;
1815 qemu_notify_event();
1816 }
1817
1818 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1819 {
1820 if (enabled) {
1821 wakeup_reason_mask |= (1 << reason);
1822 } else {
1823 wakeup_reason_mask &= ~(1 << reason);
1824 }
1825 }
1826
1827 void qemu_register_wakeup_notifier(Notifier *notifier)
1828 {
1829 notifier_list_add(&wakeup_notifiers, notifier);
1830 }
1831
1832 void qemu_system_killed(int signal, pid_t pid)
1833 {
1834 shutdown_signal = signal;
1835 shutdown_pid = pid;
1836 no_shutdown = 0;
1837
1838 /* Cannot call qemu_system_shutdown_request directly because
1839 * we are in a signal handler.
1840 */
1841 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1842 qemu_notify_event();
1843 }
1844
1845 void qemu_system_shutdown_request(ShutdownCause reason)
1846 {
1847 trace_qemu_system_shutdown_request(reason);
1848 replay_shutdown_request(reason);
1849 shutdown_requested = reason;
1850 qemu_notify_event();
1851 }
1852
1853 static void qemu_system_powerdown(void)
1854 {
1855 qapi_event_send_powerdown(&error_abort);
1856 notifier_list_notify(&powerdown_notifiers, NULL);
1857 }
1858
1859 void qemu_system_powerdown_request(void)
1860 {
1861 trace_qemu_system_powerdown_request();
1862 powerdown_requested = 1;
1863 qemu_notify_event();
1864 }
1865
1866 void qemu_register_powerdown_notifier(Notifier *notifier)
1867 {
1868 notifier_list_add(&powerdown_notifiers, notifier);
1869 }
1870
1871 void qemu_system_debug_request(void)
1872 {
1873 debug_requested = 1;
1874 qemu_notify_event();
1875 }
1876
1877 static bool main_loop_should_exit(void)
1878 {
1879 RunState r;
1880 ShutdownCause request;
1881
1882 if (qemu_debug_requested()) {
1883 vm_stop(RUN_STATE_DEBUG);
1884 }
1885 if (qemu_suspend_requested()) {
1886 qemu_system_suspend();
1887 }
1888 request = qemu_shutdown_requested();
1889 if (request) {
1890 qemu_kill_report();
1891 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1892 &error_abort);
1893 if (no_shutdown) {
1894 vm_stop(RUN_STATE_SHUTDOWN);
1895 } else {
1896 return true;
1897 }
1898 }
1899 request = qemu_reset_requested();
1900 if (request) {
1901 pause_all_vcpus();
1902 qemu_system_reset(request);
1903 resume_all_vcpus();
1904 if (!runstate_check(RUN_STATE_RUNNING) &&
1905 !runstate_check(RUN_STATE_INMIGRATE)) {
1906 runstate_set(RUN_STATE_PRELAUNCH);
1907 }
1908 }
1909 if (qemu_wakeup_requested()) {
1910 pause_all_vcpus();
1911 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1912 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1913 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1914 resume_all_vcpus();
1915 qapi_event_send_wakeup(&error_abort);
1916 }
1917 if (qemu_powerdown_requested()) {
1918 qemu_system_powerdown();
1919 }
1920 if (qemu_vmstop_requested(&r)) {
1921 vm_stop(r);
1922 }
1923 return false;
1924 }
1925
1926 static void main_loop(void)
1927 {
1928 #ifdef CONFIG_PROFILER
1929 int64_t ti;
1930 #endif
1931 do {
1932 #ifdef CONFIG_PROFILER
1933 ti = profile_getclock();
1934 #endif
1935 main_loop_wait(false);
1936 #ifdef CONFIG_PROFILER
1937 dev_time += profile_getclock() - ti;
1938 #endif
1939 } while (!main_loop_should_exit());
1940 }
1941
1942 static void version(void)
1943 {
1944 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1945 QEMU_COPYRIGHT "\n");
1946 }
1947
1948 static void help(int exitcode)
1949 {
1950 version();
1951 printf("usage: %s [options] [disk_image]\n\n"
1952 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1953 error_get_progname());
1954
1955 #define QEMU_OPTIONS_GENERATE_HELP
1956 #include "qemu-options-wrapper.h"
1957
1958 printf("\nDuring emulation, the following keys are useful:\n"
1959 "ctrl-alt-f toggle full screen\n"
1960 "ctrl-alt-n switch to virtual console 'n'\n"
1961 "ctrl-alt toggle mouse and keyboard grab\n"
1962 "\n"
1963 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1964 "\n"
1965 QEMU_HELP_BOTTOM "\n");
1966
1967 exit(exitcode);
1968 }
1969
1970 #define HAS_ARG 0x0001
1971
1972 typedef struct QEMUOption {
1973 const char *name;
1974 int flags;
1975 int index;
1976 uint32_t arch_mask;
1977 } QEMUOption;
1978
1979 static const QEMUOption qemu_options[] = {
1980 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1981 #define QEMU_OPTIONS_GENERATE_OPTIONS
1982 #include "qemu-options-wrapper.h"
1983 { NULL },
1984 };
1985
1986 typedef struct VGAInterfaceInfo {
1987 const char *opt_name; /* option name */
1988 const char *name; /* human-readable name */
1989 /* Class names indicating that support is available.
1990 * If no class is specified, the interface is always available */
1991 const char *class_names[2];
1992 } VGAInterfaceInfo;
1993
1994 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1995 [VGA_NONE] = {
1996 .opt_name = "none",
1997 },
1998 [VGA_STD] = {
1999 .opt_name = "std",
2000 .name = "standard VGA",
2001 .class_names = { "VGA", "isa-vga" },
2002 },
2003 [VGA_CIRRUS] = {
2004 .opt_name = "cirrus",
2005 .name = "Cirrus VGA",
2006 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2007 },
2008 [VGA_VMWARE] = {
2009 .opt_name = "vmware",
2010 .name = "VMWare SVGA",
2011 .class_names = { "vmware-svga" },
2012 },
2013 [VGA_VIRTIO] = {
2014 .opt_name = "virtio",
2015 .name = "Virtio VGA",
2016 .class_names = { "virtio-vga" },
2017 },
2018 [VGA_QXL] = {
2019 .opt_name = "qxl",
2020 .name = "QXL VGA",
2021 .class_names = { "qxl-vga" },
2022 },
2023 [VGA_TCX] = {
2024 .opt_name = "tcx",
2025 .name = "TCX framebuffer",
2026 .class_names = { "SUNW,tcx" },
2027 },
2028 [VGA_CG3] = {
2029 .opt_name = "cg3",
2030 .name = "CG3 framebuffer",
2031 .class_names = { "cgthree" },
2032 },
2033 [VGA_XENFB] = {
2034 .opt_name = "xenfb",
2035 },
2036 };
2037
2038 static bool vga_interface_available(VGAInterfaceType t)
2039 {
2040 VGAInterfaceInfo *ti = &vga_interfaces[t];
2041
2042 assert(t < VGA_TYPE_MAX);
2043 return !ti->class_names[0] ||
2044 object_class_by_name(ti->class_names[0]) ||
2045 object_class_by_name(ti->class_names[1]);
2046 }
2047
2048 static void select_vgahw(const char *p)
2049 {
2050 const char *opts;
2051 int t;
2052
2053 assert(vga_interface_type == VGA_NONE);
2054 for (t = 0; t < VGA_TYPE_MAX; t++) {
2055 VGAInterfaceInfo *ti = &vga_interfaces[t];
2056 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2057 if (!vga_interface_available(t)) {
2058 error_report("%s not available", ti->name);
2059 exit(1);
2060 }
2061 vga_interface_type = t;
2062 break;
2063 }
2064 }
2065 if (t == VGA_TYPE_MAX) {
2066 invalid_vga:
2067 error_report("unknown vga type: %s", p);
2068 exit(1);
2069 }
2070 while (*opts) {
2071 const char *nextopt;
2072
2073 if (strstart(opts, ",retrace=", &nextopt)) {
2074 opts = nextopt;
2075 if (strstart(opts, "dumb", &nextopt))
2076 vga_retrace_method = VGA_RETRACE_DUMB;
2077 else if (strstart(opts, "precise", &nextopt))
2078 vga_retrace_method = VGA_RETRACE_PRECISE;
2079 else goto invalid_vga;
2080 } else goto invalid_vga;
2081 opts = nextopt;
2082 }
2083 }
2084
2085 typedef enum DisplayType {
2086 DT_DEFAULT,
2087 DT_CURSES,
2088 DT_SDL,
2089 DT_COCOA,
2090 DT_GTK,
2091 DT_EGL,
2092 DT_NONE,
2093 } DisplayType;
2094
2095 static DisplayType select_display(const char *p)
2096 {
2097 const char *opts;
2098 DisplayType display = DT_DEFAULT;
2099
2100 if (strstart(p, "sdl", &opts)) {
2101 #ifdef CONFIG_SDL
2102 display = DT_SDL;
2103 while (*opts) {
2104 const char *nextopt;
2105
2106 if (strstart(opts, ",frame=", &nextopt)) {
2107 opts = nextopt;
2108 if (strstart(opts, "on", &nextopt)) {
2109 no_frame = 0;
2110 } else if (strstart(opts, "off", &nextopt)) {
2111 no_frame = 1;
2112 } else {
2113 goto invalid_sdl_args;
2114 }
2115 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2116 opts = nextopt;
2117 if (strstart(opts, "on", &nextopt)) {
2118 alt_grab = 1;
2119 } else if (strstart(opts, "off", &nextopt)) {
2120 alt_grab = 0;
2121 } else {
2122 goto invalid_sdl_args;
2123 }
2124 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2125 opts = nextopt;
2126 if (strstart(opts, "on", &nextopt)) {
2127 ctrl_grab = 1;
2128 } else if (strstart(opts, "off", &nextopt)) {
2129 ctrl_grab = 0;
2130 } else {
2131 goto invalid_sdl_args;
2132 }
2133 } else if (strstart(opts, ",window_close=", &nextopt)) {
2134 opts = nextopt;
2135 if (strstart(opts, "on", &nextopt)) {
2136 no_quit = 0;
2137 } else if (strstart(opts, "off", &nextopt)) {
2138 no_quit = 1;
2139 } else {
2140 goto invalid_sdl_args;
2141 }
2142 } else if (strstart(opts, ",gl=", &nextopt)) {
2143 opts = nextopt;
2144 if (strstart(opts, "on", &nextopt)) {
2145 request_opengl = 1;
2146 } else if (strstart(opts, "off", &nextopt)) {
2147 request_opengl = 0;
2148 } else {
2149 goto invalid_sdl_args;
2150 }
2151 } else {
2152 invalid_sdl_args:
2153 error_report("invalid SDL option string");
2154 exit(1);
2155 }
2156 opts = nextopt;
2157 }
2158 #else
2159 error_report("SDL support is disabled");
2160 exit(1);
2161 #endif
2162 } else if (strstart(p, "vnc", &opts)) {
2163 if (*opts == '=') {
2164 vnc_parse(opts + 1, &error_fatal);
2165 } else {
2166 error_report("VNC requires a display argument vnc=<display>");
2167 exit(1);
2168 }
2169 } else if (strstart(p, "egl-headless", &opts)) {
2170 #ifdef CONFIG_OPENGL_DMABUF
2171 request_opengl = 1;
2172 display_opengl = 1;
2173 display = DT_EGL;
2174 #else
2175 fprintf(stderr, "egl support is disabled\n");
2176 exit(1);
2177 #endif
2178 } else if (strstart(p, "curses", &opts)) {
2179 #ifdef CONFIG_CURSES
2180 display = DT_CURSES;
2181 #else
2182 error_report("curses support is disabled");
2183 exit(1);
2184 #endif
2185 } else if (strstart(p, "gtk", &opts)) {
2186 #ifdef CONFIG_GTK
2187 display = DT_GTK;
2188 while (*opts) {
2189 const char *nextopt;
2190
2191 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2192 opts = nextopt;
2193 if (strstart(opts, "on", &nextopt)) {
2194 grab_on_hover = true;
2195 } else if (strstart(opts, "off", &nextopt)) {
2196 grab_on_hover = false;
2197 } else {
2198 goto invalid_gtk_args;
2199 }
2200 } else if (strstart(opts, ",gl=", &nextopt)) {
2201 opts = nextopt;
2202 if (strstart(opts, "on", &nextopt)) {
2203 request_opengl = 1;
2204 } else if (strstart(opts, "off", &nextopt)) {
2205 request_opengl = 0;
2206 } else {
2207 goto invalid_gtk_args;
2208 }
2209 } else {
2210 invalid_gtk_args:
2211 error_report("invalid GTK option string");
2212 exit(1);
2213 }
2214 opts = nextopt;
2215 }
2216 #else
2217 error_report("GTK support is disabled");
2218 exit(1);
2219 #endif
2220 } else if (strstart(p, "none", &opts)) {
2221 display = DT_NONE;
2222 } else {
2223 error_report("unknown display type");
2224 exit(1);
2225 }
2226
2227 return display;
2228 }
2229
2230 static int balloon_parse(const char *arg)
2231 {
2232 QemuOpts *opts;
2233
2234 if (strcmp(arg, "none") == 0) {
2235 return 0;
2236 }
2237
2238 if (!strncmp(arg, "virtio", 6)) {
2239 if (arg[6] == ',') {
2240 /* have params -> parse them */
2241 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2242 false);
2243 if (!opts)
2244 return -1;
2245 } else {
2246 /* create empty opts */
2247 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2248 &error_abort);
2249 }
2250 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2251 return 0;
2252 }
2253
2254 return -1;
2255 }
2256
2257 char *qemu_find_file(int type, const char *name)
2258 {
2259 int i;
2260 const char *subdir;
2261 char *buf;
2262
2263 /* Try the name as a straight path first */
2264 if (access(name, R_OK) == 0) {
2265 trace_load_file(name, name);
2266 return g_strdup(name);
2267 }
2268
2269 switch (type) {
2270 case QEMU_FILE_TYPE_BIOS:
2271 subdir = "";
2272 break;
2273 case QEMU_FILE_TYPE_KEYMAP:
2274 subdir = "keymaps/";
2275 break;
2276 default:
2277 abort();
2278 }
2279
2280 for (i = 0; i < data_dir_idx; i++) {
2281 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2282 if (access(buf, R_OK) == 0) {
2283 trace_load_file(name, buf);
2284 return buf;
2285 }
2286 g_free(buf);
2287 }
2288 return NULL;
2289 }
2290
2291 static void qemu_add_data_dir(const char *path)
2292 {
2293 int i;
2294
2295 if (path == NULL) {
2296 return;
2297 }
2298 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2299 return;
2300 }
2301 for (i = 0; i < data_dir_idx; i++) {
2302 if (strcmp(data_dir[i], path) == 0) {
2303 return; /* duplicate */
2304 }
2305 }
2306 data_dir[data_dir_idx++] = g_strdup(path);
2307 }
2308
2309 static inline bool nonempty_str(const char *str)
2310 {
2311 return str && *str;
2312 }
2313
2314 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2315 {
2316 gchar *buf;
2317 size_t size;
2318 const char *name, *file, *str;
2319 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2320
2321 if (fw_cfg == NULL) {
2322 error_report("fw_cfg device not available");
2323 return -1;
2324 }
2325 name = qemu_opt_get(opts, "name");
2326 file = qemu_opt_get(opts, "file");
2327 str = qemu_opt_get(opts, "string");
2328
2329 /* we need name and either a file or the content string */
2330 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2331 error_report("invalid argument(s)");
2332 return -1;
2333 }
2334 if (nonempty_str(file) && nonempty_str(str)) {
2335 error_report("file and string are mutually exclusive");
2336 return -1;
2337 }
2338 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2339 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2340 return -1;
2341 }
2342 if (strncmp(name, "opt/", 4) != 0) {
2343 warn_report("externally provided fw_cfg item names "
2344 "should be prefixed with \"opt/\"");
2345 }
2346 if (nonempty_str(str)) {
2347 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2348 buf = g_memdup(str, size);
2349 } else {
2350 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2351 error_report("can't load %s", file);
2352 return -1;
2353 }
2354 }
2355 /* For legacy, keep user files in a specific global order. */
2356 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2357 fw_cfg_add_file(fw_cfg, name, buf, size);
2358 fw_cfg_reset_order_override(fw_cfg);
2359 return 0;
2360 }
2361
2362 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2363 {
2364 return qdev_device_help(opts);
2365 }
2366
2367 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2368 {
2369 Error *err = NULL;
2370 DeviceState *dev;
2371
2372 dev = qdev_device_add(opts, &err);
2373 if (!dev) {
2374 error_report_err(err);
2375 return -1;
2376 }
2377 object_unref(OBJECT(dev));
2378 return 0;
2379 }
2380
2381 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2382 {
2383 Error *local_err = NULL;
2384
2385 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2386 if (local_err) {
2387 error_report_err(local_err);
2388 return -1;
2389 }
2390 exit(0);
2391 }
2392 return 0;
2393 }
2394
2395 #ifdef CONFIG_VIRTFS
2396 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2397 {
2398 return qemu_fsdev_add(opts);
2399 }
2400 #endif
2401
2402 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2403 {
2404 Chardev *chr;
2405 const char *chardev;
2406 const char *mode;
2407 int flags;
2408
2409 mode = qemu_opt_get(opts, "mode");
2410 if (mode == NULL) {
2411 mode = "readline";
2412 }
2413 if (strcmp(mode, "readline") == 0) {
2414 flags = MONITOR_USE_READLINE;
2415 } else if (strcmp(mode, "control") == 0) {
2416 flags = MONITOR_USE_CONTROL;
2417 } else {
2418 error_report("unknown monitor mode \"%s\"", mode);
2419 exit(1);
2420 }
2421
2422 if (qemu_opt_get_bool(opts, "pretty", 0))
2423 flags |= MONITOR_USE_PRETTY;
2424
2425 if (qemu_opt_get_bool(opts, "default", 0)) {
2426 error_report("option 'default' does nothing and is deprecated");
2427 }
2428
2429 chardev = qemu_opt_get(opts, "chardev");
2430 chr = qemu_chr_find(chardev);
2431 if (chr == NULL) {
2432 error_report("chardev \"%s\" not found", chardev);
2433 exit(1);
2434 }
2435
2436 monitor_init(chr, flags);
2437 return 0;
2438 }
2439
2440 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2441 {
2442 static int monitor_device_index = 0;
2443 QemuOpts *opts;
2444 const char *p;
2445 char label[32];
2446
2447 if (strstart(optarg, "chardev:", &p)) {
2448 snprintf(label, sizeof(label), "%s", p);
2449 } else {
2450 snprintf(label, sizeof(label), "compat_monitor%d",
2451 monitor_device_index);
2452 opts = qemu_chr_parse_compat(label, optarg);
2453 if (!opts) {
2454 error_report("parse error: %s", optarg);
2455 exit(1);
2456 }
2457 }
2458
2459 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2460 qemu_opt_set(opts, "mode", mode, &error_abort);
2461 qemu_opt_set(opts, "chardev", label, &error_abort);
2462 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2463 monitor_device_index++;
2464 }
2465
2466 struct device_config {
2467 enum {
2468 DEV_USB, /* -usbdevice */
2469 DEV_BT, /* -bt */
2470 DEV_SERIAL, /* -serial */
2471 DEV_PARALLEL, /* -parallel */
2472 DEV_VIRTCON, /* -virtioconsole */
2473 DEV_DEBUGCON, /* -debugcon */
2474 DEV_GDB, /* -gdb, -s */
2475 DEV_SCLP, /* s390 sclp */
2476 } type;
2477 const char *cmdline;
2478 Location loc;
2479 QTAILQ_ENTRY(device_config) next;
2480 };
2481
2482 static QTAILQ_HEAD(, device_config) device_configs =
2483 QTAILQ_HEAD_INITIALIZER(device_configs);
2484
2485 static void add_device_config(int type, const char *cmdline)
2486 {
2487 struct device_config *conf;
2488
2489 conf = g_malloc0(sizeof(*conf));
2490 conf->type = type;
2491 conf->cmdline = cmdline;
2492 loc_save(&conf->loc);
2493 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2494 }
2495
2496 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2497 {
2498 struct device_config *conf;
2499 int rc;
2500
2501 QTAILQ_FOREACH(conf, &device_configs, next) {
2502 if (conf->type != type)
2503 continue;
2504 loc_push_restore(&conf->loc);
2505 rc = func(conf->cmdline);
2506 loc_pop(&conf->loc);
2507 if (rc) {
2508 return rc;
2509 }
2510 }
2511 return 0;
2512 }
2513
2514 static int serial_parse(const char *devname)
2515 {
2516 static int index = 0;
2517 char label[32];
2518
2519 if (strcmp(devname, "none") == 0)
2520 return 0;
2521 if (index == MAX_SERIAL_PORTS) {
2522 error_report("too many serial ports");
2523 exit(1);
2524 }
2525 snprintf(label, sizeof(label), "serial%d", index);
2526 serial_hds[index] = qemu_chr_new(label, devname);
2527 if (!serial_hds[index]) {
2528 error_report("could not connect serial device"
2529 " to character backend '%s'", devname);
2530 return -1;
2531 }
2532 index++;
2533 return 0;
2534 }
2535
2536 static int parallel_parse(const char *devname)
2537 {
2538 static int index = 0;
2539 char label[32];
2540
2541 if (strcmp(devname, "none") == 0)
2542 return 0;
2543 if (index == MAX_PARALLEL_PORTS) {
2544 error_report("too many parallel ports");
2545 exit(1);
2546 }
2547 snprintf(label, sizeof(label), "parallel%d", index);
2548 parallel_hds[index] = qemu_chr_new(label, devname);
2549 if (!parallel_hds[index]) {
2550 error_report("could not connect parallel device"
2551 " to character backend '%s'", devname);
2552 return -1;
2553 }
2554 index++;
2555 return 0;
2556 }
2557
2558 static int virtcon_parse(const char *devname)
2559 {
2560 QemuOptsList *device = qemu_find_opts("device");
2561 static int index = 0;
2562 char label[32];
2563 QemuOpts *bus_opts, *dev_opts;
2564
2565 if (strcmp(devname, "none") == 0)
2566 return 0;
2567 if (index == MAX_VIRTIO_CONSOLES) {
2568 error_report("too many virtio consoles");
2569 exit(1);
2570 }
2571
2572 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2573 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2574
2575 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2576 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2577
2578 snprintf(label, sizeof(label), "virtcon%d", index);
2579 virtcon_hds[index] = qemu_chr_new(label, devname);
2580 if (!virtcon_hds[index]) {
2581 error_report("could not connect virtio console"
2582 " to character backend '%s'", devname);
2583 return -1;
2584 }
2585 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2586
2587 index++;
2588 return 0;
2589 }
2590
2591 static int sclp_parse(const char *devname)
2592 {
2593 QemuOptsList *device = qemu_find_opts("device");
2594 static int index = 0;
2595 char label[32];
2596 QemuOpts *dev_opts;
2597
2598 if (strcmp(devname, "none") == 0) {
2599 return 0;
2600 }
2601 if (index == MAX_SCLP_CONSOLES) {
2602 error_report("too many sclp consoles");
2603 exit(1);
2604 }
2605
2606 assert(arch_type == QEMU_ARCH_S390X);
2607
2608 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2609 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2610
2611 snprintf(label, sizeof(label), "sclpcon%d", index);
2612 sclp_hds[index] = qemu_chr_new(label, devname);
2613 if (!sclp_hds[index]) {
2614 error_report("could not connect sclp console"
2615 " to character backend '%s'", devname);
2616 return -1;
2617 }
2618 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2619
2620 index++;
2621 return 0;
2622 }
2623
2624 static int debugcon_parse(const char *devname)
2625 {
2626 QemuOpts *opts;
2627
2628 if (!qemu_chr_new("debugcon", devname)) {
2629 exit(1);
2630 }
2631 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2632 if (!opts) {
2633 error_report("already have a debugcon device");
2634 exit(1);
2635 }
2636 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2637 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2638 return 0;
2639 }
2640
2641 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2642 {
2643 const MachineClass *mc1 = a, *mc2 = b;
2644 int res;
2645
2646 if (mc1->family == NULL) {
2647 if (mc2->family == NULL) {
2648 /* Compare standalone machine types against each other; they sort
2649 * in increasing order.
2650 */
2651 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2652 object_class_get_name(OBJECT_CLASS(mc2)));
2653 }
2654
2655 /* Standalone machine types sort after families. */
2656 return 1;
2657 }
2658
2659 if (mc2->family == NULL) {
2660 /* Families sort before standalone machine types. */
2661 return -1;
2662 }
2663
2664 /* Families sort between each other alphabetically increasingly. */
2665 res = strcmp(mc1->family, mc2->family);
2666 if (res != 0) {
2667 return res;
2668 }
2669
2670 /* Within the same family, machine types sort in decreasing order. */
2671 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2672 object_class_get_name(OBJECT_CLASS(mc1)));
2673 }
2674
2675 static MachineClass *machine_parse(const char *name)
2676 {
2677 MachineClass *mc = NULL;
2678 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2679
2680 if (name) {
2681 mc = find_machine(name);
2682 }
2683 if (mc) {
2684 g_slist_free(machines);
2685 return mc;
2686 }
2687 if (name && !is_help_option(name)) {
2688 error_report("unsupported machine type");
2689 error_printf("Use -machine help to list supported machines\n");
2690 } else {
2691 printf("Supported machines are:\n");
2692 machines = g_slist_sort(machines, machine_class_cmp);
2693 for (el = machines; el; el = el->next) {
2694 MachineClass *mc = el->data;
2695 if (mc->alias) {
2696 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2697 }
2698 printf("%-20s %s%s\n", mc->name, mc->desc,
2699 mc->is_default ? " (default)" : "");
2700 }
2701 }
2702
2703 g_slist_free(machines);
2704 exit(!name || !is_help_option(name));
2705 }
2706
2707 void qemu_add_exit_notifier(Notifier *notify)
2708 {
2709 notifier_list_add(&exit_notifiers, notify);
2710 }
2711
2712 void qemu_remove_exit_notifier(Notifier *notify)
2713 {
2714 notifier_remove(notify);
2715 }
2716
2717 static void qemu_run_exit_notifiers(void)
2718 {
2719 notifier_list_notify(&exit_notifiers, NULL);
2720 }
2721
2722 static bool machine_init_done;
2723
2724 void qemu_add_machine_init_done_notifier(Notifier *notify)
2725 {
2726 notifier_list_add(&machine_init_done_notifiers, notify);
2727 if (machine_init_done) {
2728 notify->notify(notify, NULL);
2729 }
2730 }
2731
2732 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2733 {
2734 notifier_remove(notify);
2735 }
2736
2737 static void qemu_run_machine_init_done_notifiers(void)
2738 {
2739 notifier_list_notify(&machine_init_done_notifiers, NULL);
2740 machine_init_done = true;
2741 }
2742
2743 static const QEMUOption *lookup_opt(int argc, char **argv,
2744 const char **poptarg, int *poptind)
2745 {
2746 const QEMUOption *popt;
2747 int optind = *poptind;
2748 char *r = argv[optind];
2749 const char *optarg;
2750
2751 loc_set_cmdline(argv, optind, 1);
2752 optind++;
2753 /* Treat --foo the same as -foo. */
2754 if (r[1] == '-')
2755 r++;
2756 popt = qemu_options;
2757 for(;;) {
2758 if (!popt->name) {
2759 error_report("invalid option");
2760 exit(1);
2761 }
2762 if (!strcmp(popt->name, r + 1))
2763 break;
2764 popt++;
2765 }
2766 if (popt->flags & HAS_ARG) {
2767 if (optind >= argc) {
2768 error_report("requires an argument");
2769 exit(1);
2770 }
2771 optarg = argv[optind++];
2772 loc_set_cmdline(argv, optind - 2, 2);
2773 } else {
2774 optarg = NULL;
2775 }
2776
2777 *poptarg = optarg;
2778 *poptind = optind;
2779
2780 return popt;
2781 }
2782
2783 static MachineClass *select_machine(void)
2784 {
2785 MachineClass *machine_class = find_default_machine();
2786 const char *optarg;
2787 QemuOpts *opts;
2788 Location loc;
2789
2790 loc_push_none(&loc);
2791
2792 opts = qemu_get_machine_opts();
2793 qemu_opts_loc_restore(opts);
2794
2795 optarg = qemu_opt_get(opts, "type");
2796 if (optarg) {
2797 machine_class = machine_parse(optarg);
2798 }
2799
2800 if (!machine_class) {
2801 error_report("No machine specified, and there is no default");
2802 error_printf("Use -machine help to list supported machines\n");
2803 exit(1);
2804 }
2805
2806 loc_pop(&loc);
2807 return machine_class;
2808 }
2809
2810 static int machine_set_property(void *opaque,
2811 const char *name, const char *value,
2812 Error **errp)
2813 {
2814 Object *obj = OBJECT(opaque);
2815 Error *local_err = NULL;
2816 char *p, *qom_name;
2817
2818 if (strcmp(name, "type") == 0) {
2819 return 0;
2820 }
2821
2822 qom_name = g_strdup(name);
2823 for (p = qom_name; *p; p++) {
2824 if (*p == '_') {
2825 *p = '-';
2826 }
2827 }
2828
2829 object_property_parse(obj, value, qom_name, &local_err);
2830 g_free(qom_name);
2831
2832 if (local_err) {
2833 error_report_err(local_err);
2834 return -1;
2835 }
2836
2837 return 0;
2838 }
2839
2840
2841 /*
2842 * Initial object creation happens before all other
2843 * QEMU data types are created. The majority of objects
2844 * can be created at this point. The rng-egd object
2845 * cannot be created here, as it depends on the chardev
2846 * already existing.
2847 */
2848 static bool object_create_initial(const char *type)
2849 {
2850 if (g_str_equal(type, "rng-egd") ||
2851 g_str_has_prefix(type, "pr-manager-")) {
2852 return false;
2853 }
2854
2855 /*
2856 * return false for concrete netfilters since
2857 * they depend on netdevs already existing
2858 */
2859 if (g_str_equal(type, "filter-buffer") ||
2860 g_str_equal(type, "filter-dump") ||
2861 g_str_equal(type, "filter-mirror") ||
2862 g_str_equal(type, "filter-redirector") ||
2863 g_str_equal(type, "colo-compare") ||
2864 g_str_equal(type, "filter-rewriter") ||
2865 g_str_equal(type, "filter-replay")) {
2866 return false;
2867 }
2868
2869 /* Memory allocation by backends needs to be done
2870 * after configure_accelerator() (due to the tcg_enabled()
2871 * checks at memory_region_init_*()).
2872 *
2873 * Also, allocation of large amounts of memory may delay
2874 * chardev initialization for too long, and trigger timeouts
2875 * on software that waits for a monitor socket to be created
2876 * (e.g. libvirt).
2877 */
2878 if (g_str_has_prefix(type, "memory-backend-")) {
2879 return false;
2880 }
2881
2882 return true;
2883 }
2884
2885
2886 /*
2887 * The remainder of object creation happens after the
2888 * creation of chardev, fsdev, net clients and device data types.
2889 */
2890 static bool object_create_delayed(const char *type)
2891 {
2892 return !object_create_initial(type);
2893 }
2894
2895
2896 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2897 MachineClass *mc)
2898 {
2899 uint64_t sz;
2900 const char *mem_str;
2901 const char *maxmem_str, *slots_str;
2902 const ram_addr_t default_ram_size = mc->default_ram_size;
2903 QemuOpts *opts = qemu_find_opts_singleton("memory");
2904 Location loc;
2905
2906 loc_push_none(&loc);
2907 qemu_opts_loc_restore(opts);
2908
2909 sz = 0;
2910 mem_str = qemu_opt_get(opts, "size");
2911 if (mem_str) {
2912 if (!*mem_str) {
2913 error_report("missing 'size' option value");
2914 exit(EXIT_FAILURE);
2915 }
2916
2917 sz = qemu_opt_get_size(opts, "size", ram_size);
2918
2919 /* Fix up legacy suffix-less format */
2920 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2921 uint64_t overflow_check = sz;
2922
2923 sz <<= 20;
2924 if ((sz >> 20) != overflow_check) {
2925 error_report("too large 'size' option value");
2926 exit(EXIT_FAILURE);
2927 }
2928 }
2929 }
2930
2931 /* backward compatibility behaviour for case "-m 0" */
2932 if (sz == 0) {
2933 sz = default_ram_size;
2934 }
2935
2936 sz = QEMU_ALIGN_UP(sz, 8192);
2937 ram_size = sz;
2938 if (ram_size != sz) {
2939 error_report("ram size too large");
2940 exit(EXIT_FAILURE);
2941 }
2942
2943 /* store value for the future use */
2944 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2945 *maxram_size = ram_size;
2946
2947 maxmem_str = qemu_opt_get(opts, "maxmem");
2948 slots_str = qemu_opt_get(opts, "slots");
2949 if (maxmem_str && slots_str) {
2950 uint64_t slots;
2951
2952 sz = qemu_opt_get_size(opts, "maxmem", 0);
2953 slots = qemu_opt_get_number(opts, "slots", 0);
2954 if (sz < ram_size) {
2955 error_report("invalid value of -m option maxmem: "
2956 "maximum memory size (0x%" PRIx64 ") must be at least "
2957 "the initial memory size (0x" RAM_ADDR_FMT ")",
2958 sz, ram_size);
2959 exit(EXIT_FAILURE);
2960 } else if (sz > ram_size) {
2961 if (!slots) {
2962 error_report("invalid value of -m option: maxmem was "
2963 "specified, but no hotplug slots were specified");
2964 exit(EXIT_FAILURE);
2965 }
2966 } else if (slots) {
2967 error_report("invalid value of -m option maxmem: "
2968 "memory slots were specified but maximum memory size "
2969 "(0x%" PRIx64 ") is equal to the initial memory size "
2970 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2971 exit(EXIT_FAILURE);
2972 }
2973
2974 *maxram_size = sz;
2975 *ram_slots = slots;
2976 } else if ((!maxmem_str && slots_str) ||
2977 (maxmem_str && !slots_str)) {
2978 error_report("invalid -m option value: missing "
2979 "'%s' option", slots_str ? "maxmem" : "slots");
2980 exit(EXIT_FAILURE);
2981 }
2982
2983 loc_pop(&loc);
2984 }
2985
2986 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2987 {
2988 GlobalProperty *g;
2989
2990 g = g_malloc0(sizeof(*g));
2991 g->driver = qemu_opt_get(opts, "driver");
2992 g->property = qemu_opt_get(opts, "property");
2993 g->value = qemu_opt_get(opts, "value");
2994 g->user_provided = true;
2995 g->errp = &error_fatal;
2996 qdev_prop_register_global(g);
2997 return 0;
2998 }
2999
3000 static int qemu_read_default_config_file(void)
3001 {
3002 int ret;
3003
3004 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3005 if (ret < 0 && ret != -ENOENT) {
3006 return ret;
3007 }
3008
3009 return 0;
3010 }
3011
3012 static void user_register_global_props(void)
3013 {
3014 qemu_opts_foreach(qemu_find_opts("global"),
3015 global_init_func, NULL, NULL);
3016 }
3017
3018 /*
3019 * Note: we should see that these properties are actually having a
3020 * priority: accel < machine < user. This means e.g. when user
3021 * specifies something in "-global", it'll always be used with highest
3022 * priority than either machine/accelerator compat properties.
3023 */
3024 static void register_global_properties(MachineState *ms)
3025 {
3026 accel_register_compat_props(ms->accelerator);
3027 machine_register_compat_props(ms);
3028 user_register_global_props();
3029 }
3030
3031 int main(int argc, char **argv, char **envp)
3032 {
3033 int i;
3034 int snapshot, linux_boot;
3035 const char *initrd_filename;
3036 const char *kernel_filename, *kernel_cmdline;
3037 const char *boot_order = NULL;
3038 const char *boot_once = NULL;
3039 DisplayState *ds;
3040 QemuOpts *opts, *machine_opts;
3041 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3042 QemuOptsList *olist;
3043 int optind;
3044 const char *optarg;
3045 const char *loadvm = NULL;
3046 MachineClass *machine_class;
3047 const char *cpu_model;
3048 const char *vga_model = NULL;
3049 const char *qtest_chrdev = NULL;
3050 const char *qtest_log = NULL;
3051 const char *pid_file = NULL;
3052 const char *incoming = NULL;
3053 bool userconfig = true;
3054 bool nographic = false;
3055 DisplayType display_type = DT_DEFAULT;
3056 int display_remote = 0;
3057 const char *log_mask = NULL;
3058 const char *log_file = NULL;
3059 char *trace_file = NULL;
3060 ram_addr_t maxram_size;
3061 uint64_t ram_slots = 0;
3062 FILE *vmstate_dump_file = NULL;
3063 Error *main_loop_err = NULL;
3064 Error *err = NULL;
3065 bool list_data_dirs = false;
3066 char *dir, **dirs;
3067 typedef struct BlockdevOptions_queue {
3068 BlockdevOptions *bdo;
3069 Location loc;
3070 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3071 } BlockdevOptions_queue;
3072 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3073 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3074
3075 module_call_init(MODULE_INIT_TRACE);
3076
3077 qemu_init_cpu_list();
3078 qemu_init_cpu_loop();
3079 qemu_mutex_lock_iothread();
3080
3081 atexit(qemu_run_exit_notifiers);
3082 error_set_progname(argv[0]);
3083 qemu_init_exec_dir(argv[0]);
3084
3085 module_call_init(MODULE_INIT_QOM);
3086 monitor_init_qmp_commands();
3087
3088 qemu_add_opts(&qemu_drive_opts);
3089 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3090 qemu_add_drive_opts(&qemu_common_drive_opts);
3091 qemu_add_drive_opts(&qemu_drive_opts);
3092 qemu_add_drive_opts(&bdrv_runtime_opts);
3093 qemu_add_opts(&qemu_chardev_opts);
3094 qemu_add_opts(&qemu_device_opts);
3095 qemu_add_opts(&qemu_netdev_opts);
3096 qemu_add_opts(&qemu_net_opts);
3097 qemu_add_opts(&qemu_rtc_opts);
3098 qemu_add_opts(&qemu_global_opts);
3099 qemu_add_opts(&qemu_mon_opts);
3100 qemu_add_opts(&qemu_trace_opts);
3101 qemu_add_opts(&qemu_option_rom_opts);
3102 qemu_add_opts(&qemu_machine_opts);
3103 qemu_add_opts(&qemu_accel_opts);
3104 qemu_add_opts(&qemu_mem_opts);
3105 qemu_add_opts(&qemu_smp_opts);
3106 qemu_add_opts(&qemu_boot_opts);
3107 qemu_add_opts(&qemu_sandbox_opts);
3108 qemu_add_opts(&qemu_add_fd_opts);
3109 qemu_add_opts(&qemu_object_opts);
3110 qemu_add_opts(&qemu_tpmdev_opts);
3111 qemu_add_opts(&qemu_realtime_opts);
3112 qemu_add_opts(&qemu_msg_opts);
3113 qemu_add_opts(&qemu_name_opts);
3114 qemu_add_opts(&qemu_numa_opts);
3115 qemu_add_opts(&qemu_icount_opts);
3116 qemu_add_opts(&qemu_semihosting_config_opts);
3117 qemu_add_opts(&qemu_fw_cfg_opts);
3118 module_call_init(MODULE_INIT_OPTS);
3119
3120 runstate_init();
3121
3122 if (qcrypto_init(&err) < 0) {
3123 error_reportf_err(err, "cannot initialize crypto: ");
3124 exit(1);
3125 }
3126 rtc_clock = QEMU_CLOCK_HOST;
3127
3128 QLIST_INIT (&vm_change_state_head);
3129 os_setup_early_signal_handling();
3130
3131 cpu_model = NULL;
3132 snapshot = 0;
3133
3134 nb_nics = 0;
3135
3136 bdrv_init_with_whitelist();
3137
3138 autostart = 1;
3139
3140 /* first pass of option parsing */
3141 optind = 1;
3142 while (optind < argc) {
3143 if (argv[optind][0] != '-') {
3144 /* disk image */
3145 optind++;
3146 } else {
3147 const QEMUOption *popt;
3148
3149 popt = lookup_opt(argc, argv, &optarg, &optind);
3150 switch (popt->index) {
3151 case QEMU_OPTION_nodefconfig:
3152 case QEMU_OPTION_nouserconfig:
3153 userconfig = false;
3154 break;
3155 }
3156 }
3157 }
3158
3159 if (userconfig) {
3160 if (qemu_read_default_config_file() < 0) {
3161 exit(1);
3162 }
3163 }
3164
3165 /* second pass of option parsing */
3166 optind = 1;
3167 for(;;) {
3168 if (optind >= argc)
3169 break;
3170 if (argv[optind][0] != '-') {
3171 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3172 } else {
3173 const QEMUOption *popt;
3174
3175 popt = lookup_opt(argc, argv, &optarg, &optind);
3176 if (!(popt->arch_mask & arch_type)) {
3177 error_report("Option not supported for this target");
3178 exit(1);
3179 }
3180 switch(popt->index) {
3181 case QEMU_OPTION_no_kvm_irqchip: {
3182 olist = qemu_find_opts("machine");
3183 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3184 break;
3185 }
3186 case QEMU_OPTION_cpu:
3187 /* hw initialization will check this */
3188 cpu_model = optarg;
3189 break;
3190 case QEMU_OPTION_hda:
3191 case QEMU_OPTION_hdb:
3192 case QEMU_OPTION_hdc:
3193 case QEMU_OPTION_hdd:
3194 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3195 HD_OPTS);
3196 break;
3197 case QEMU_OPTION_blockdev:
3198 {
3199 Visitor *v;
3200 BlockdevOptions_queue *bdo;
3201
3202 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3203 if (!v) {
3204 error_report_err(err);
3205 exit(1);
3206 }
3207
3208 bdo = g_new(BlockdevOptions_queue, 1);
3209 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3210 &error_fatal);
3211 visit_free(v);
3212 loc_save(&bdo->loc);
3213 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3214 break;
3215 }
3216 case QEMU_OPTION_drive:
3217 if (drive_def(optarg) == NULL) {
3218 exit(1);
3219 }
3220 break;
3221 case QEMU_OPTION_set:
3222 if (qemu_set_option(optarg) != 0)
3223 exit(1);
3224 break;
3225 case QEMU_OPTION_global:
3226 if (qemu_global_option(optarg) != 0)
3227 exit(1);
3228 break;
3229 case QEMU_OPTION_mtdblock:
3230 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3231 break;
3232 case QEMU_OPTION_sd:
3233 drive_add(IF_SD, -1, optarg, SD_OPTS);
3234 break;
3235 case QEMU_OPTION_pflash:
3236 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3237 break;
3238 case QEMU_OPTION_snapshot:
3239 snapshot = 1;
3240 break;
3241 case QEMU_OPTION_numa:
3242 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3243 optarg, true);
3244 if (!opts) {
3245 exit(1);
3246 }
3247 break;
3248 case QEMU_OPTION_display:
3249 display_type = select_display(optarg);
3250 break;
3251 case QEMU_OPTION_nographic:
3252 olist = qemu_find_opts("machine");
3253 qemu_opts_parse_noisily(olist, "graphics=off", false);
3254 nographic = true;
3255 display_type = DT_NONE;
3256 break;
3257 case QEMU_OPTION_curses:
3258 #ifdef CONFIG_CURSES
3259 display_type = DT_CURSES;
3260 #else
3261 error_report("curses support is disabled");
3262 exit(1);
3263 #endif
3264 break;
3265 case QEMU_OPTION_portrait:
3266 graphic_rotate = 90;
3267 break;
3268 case QEMU_OPTION_rotate:
3269 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3270 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3271 graphic_rotate != 180 && graphic_rotate != 270) {
3272 error_report("only 90, 180, 270 deg rotation is available");
3273 exit(1);
3274 }
3275 break;
3276 case QEMU_OPTION_kernel:
3277 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3278 &error_abort);
3279 break;
3280 case QEMU_OPTION_initrd:
3281 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3282 &error_abort);
3283 break;
3284 case QEMU_OPTION_append:
3285 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3286 &error_abort);
3287 break;
3288 case QEMU_OPTION_dtb:
3289 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3290 &error_abort);
3291 break;
3292 case QEMU_OPTION_cdrom:
3293 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3294 break;
3295 case QEMU_OPTION_boot:
3296 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3297 optarg, true);
3298 if (!opts) {
3299 exit(1);
3300 }
3301 break;
3302 case QEMU_OPTION_fda:
3303 case QEMU_OPTION_fdb:
3304 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3305 optarg, FD_OPTS);
3306 break;
3307 case QEMU_OPTION_no_fd_bootchk:
3308 fd_bootchk = 0;
3309 break;
3310 case QEMU_OPTION_netdev:
3311 default_net = 0;
3312 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3313 exit(1);
3314 }
3315 break;
3316 case QEMU_OPTION_net:
3317 default_net = 0;
3318 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3319 exit(1);
3320 }
3321 break;
3322 #ifdef CONFIG_LIBISCSI
3323 case QEMU_OPTION_iscsi:
3324 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3325 optarg, false);
3326 if (!opts) {
3327 exit(1);
3328 }
3329 break;
3330 #endif
3331 #ifdef CONFIG_SLIRP
3332 case QEMU_OPTION_tftp:
3333 error_report("The -tftp option is deprecated. "
3334 "Please use '-netdev user,tftp=...' instead.");
3335 legacy_tftp_prefix = optarg;
3336 break;
3337 case QEMU_OPTION_bootp:
3338 error_report("The -bootp option is deprecated. "
3339 "Please use '-netdev user,bootfile=...' instead.");
3340 legacy_bootp_filename = optarg;
3341 break;
3342 case QEMU_OPTION_redir:
3343 error_report("The -redir option is deprecated. "
3344 "Please use '-netdev user,hostfwd=...' instead.");
3345 if (net_slirp_redir(optarg) < 0)
3346 exit(1);
3347 break;
3348 #endif
3349 case QEMU_OPTION_bt:
3350 add_device_config(DEV_BT, optarg);
3351 break;
3352 case QEMU_OPTION_audio_help:
3353 AUD_help ();
3354 exit (0);
3355 break;
3356 case QEMU_OPTION_soundhw:
3357 select_soundhw (optarg);
3358 break;
3359 case QEMU_OPTION_h:
3360 help(0);
3361 break;
3362 case QEMU_OPTION_version:
3363 version();
3364 exit(0);
3365 break;
3366 case QEMU_OPTION_m:
3367 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3368 optarg, true);
3369 if (!opts) {
3370 exit(EXIT_FAILURE);
3371 }
3372 break;
3373 #ifdef CONFIG_TPM
3374 case QEMU_OPTION_tpmdev:
3375 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3376 exit(1);
3377 }
3378 break;
3379 #endif
3380 case QEMU_OPTION_mempath:
3381 mem_path = optarg;
3382 break;
3383 case QEMU_OPTION_mem_prealloc:
3384 mem_prealloc = 1;
3385 break;
3386 case QEMU_OPTION_d:
3387 log_mask = optarg;
3388 break;
3389 case QEMU_OPTION_D:
3390 log_file = optarg;
3391 break;
3392 case QEMU_OPTION_DFILTER:
3393 qemu_set_dfilter_ranges(optarg, &error_fatal);
3394 break;
3395 case QEMU_OPTION_s:
3396 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3397 break;
3398 case QEMU_OPTION_gdb:
3399 add_device_config(DEV_GDB, optarg);
3400 break;
3401 case QEMU_OPTION_L:
3402 if (is_help_option(optarg)) {
3403 list_data_dirs = true;
3404 } else {
3405 qemu_add_data_dir(optarg);
3406 }
3407 break;
3408 case QEMU_OPTION_bios:
3409 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3410 &error_abort);
3411 break;
3412 case QEMU_OPTION_singlestep:
3413 singlestep = 1;
3414 break;
3415 case QEMU_OPTION_S:
3416 autostart = 0;
3417 break;
3418 case QEMU_OPTION_k:
3419 keyboard_layout = optarg;
3420 break;
3421 case QEMU_OPTION_localtime:
3422 rtc_utc = 0;
3423 break;
3424 case QEMU_OPTION_vga:
3425 vga_model = optarg;
3426 default_vga = 0;
3427 break;
3428 case QEMU_OPTION_g:
3429 {
3430 const char *p;
3431 int w, h, depth;
3432 p = optarg;
3433 w = strtol(p, (char **)&p, 10);
3434 if (w <= 0) {
3435 graphic_error:
3436 error_report("invalid resolution or depth");
3437 exit(1);
3438 }
3439 if (*p != 'x')
3440 goto graphic_error;
3441 p++;
3442 h = strtol(p, (char **)&p, 10);
3443 if (h <= 0)
3444 goto graphic_error;
3445 if (*p == 'x') {
3446 p++;
3447 depth = strtol(p, (char **)&p, 10);
3448 if (depth != 8 && depth != 15 && depth != 16 &&
3449 depth != 24 && depth != 32)
3450 goto graphic_error;
3451 } else if (*p == '\0') {
3452 depth = graphic_depth;
3453 } else {
3454 goto graphic_error;
3455 }
3456
3457 graphic_width = w;
3458 graphic_height = h;
3459 graphic_depth = depth;
3460 }
3461 break;
3462 case QEMU_OPTION_echr:
3463 {
3464 char *r;
3465 term_escape_char = strtol(optarg, &r, 0);
3466 if (r == optarg)
3467 printf("Bad argument to echr\n");
3468 break;
3469 }
3470 case QEMU_OPTION_monitor:
3471 default_monitor = 0;
3472 if (strncmp(optarg, "none", 4)) {
3473 monitor_parse(optarg, "readline", false);
3474 }
3475 break;
3476 case QEMU_OPTION_qmp:
3477 monitor_parse(optarg, "control", false);
3478 default_monitor = 0;
3479 break;
3480 case QEMU_OPTION_qmp_pretty:
3481 monitor_parse(optarg, "control", true);
3482 default_monitor = 0;
3483 break;
3484 case QEMU_OPTION_mon:
3485 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3486 true);
3487 if (!opts) {
3488 exit(1);
3489 }
3490 default_monitor = 0;
3491 break;
3492 case QEMU_OPTION_chardev:
3493 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3494 optarg, true);
3495 if (!opts) {
3496 exit(1);
3497 }
3498 break;
3499 case QEMU_OPTION_fsdev:
3500 olist = qemu_find_opts("fsdev");
3501 if (!olist) {
3502 error_report("fsdev support is disabled");
3503 exit(1);
3504 }
3505 opts = qemu_opts_parse_noisily(olist, optarg, true);
3506 if (!opts) {
3507 exit(1);
3508 }
3509 break;
3510 case QEMU_OPTION_virtfs: {
3511 QemuOpts *fsdev;
3512 QemuOpts *device;
3513 const char *writeout, *sock_fd, *socket, *path, *security_model;
3514
3515 olist = qemu_find_opts("virtfs");
3516 if (!olist) {
3517 error_report("virtfs support is disabled");
3518 exit(1);
3519 }
3520 opts = qemu_opts_parse_noisily(olist, optarg, true);
3521 if (!opts) {
3522 exit(1);
3523 }
3524
3525 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3526 qemu_opt_get(opts, "mount_tag") == NULL) {
3527 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3528 exit(1);
3529 }
3530 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3531 qemu_opts_id(opts) ?:
3532 qemu_opt_get(opts, "mount_tag"),
3533 1, NULL);
3534 if (!fsdev) {
3535 error_report("duplicate or invalid fsdev id: %s",
3536 qemu_opt_get(opts, "mount_tag"));
3537 exit(1);
3538 }
3539
3540 writeout = qemu_opt_get(opts, "writeout");
3541 if (writeout) {
3542 #ifdef CONFIG_SYNC_FILE_RANGE
3543 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3544 #else
3545 error_report("writeout=immediate not supported "
3546 "on this platform");
3547 exit(1);
3548 #endif
3549 }
3550 qemu_opt_set(fsdev, "fsdriver",
3551 qemu_opt_get(opts, "fsdriver"), &error_abort);
3552 path = qemu_opt_get(opts, "path");
3553 if (path) {
3554 qemu_opt_set(fsdev, "path", path, &error_abort);
3555 }
3556 security_model = qemu_opt_get(opts, "security_model");
3557 if (security_model) {
3558 qemu_opt_set(fsdev, "security_model", security_model,
3559 &error_abort);
3560 }
3561 socket = qemu_opt_get(opts, "socket");
3562 if (socket) {
3563 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3564 }
3565 sock_fd = qemu_opt_get(opts, "sock_fd");
3566 if (sock_fd) {
3567 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3568 }
3569
3570 qemu_opt_set_bool(fsdev, "readonly",
3571 qemu_opt_get_bool(opts, "readonly", 0),
3572 &error_abort);
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",
3577 qemu_opts_id(fsdev), &error_abort);
3578 qemu_opt_set(device, "mount_tag",
3579 qemu_opt_get(opts, "mount_tag"), &error_abort);
3580 break;
3581 }
3582 case QEMU_OPTION_virtfs_synth: {
3583 QemuOpts *fsdev;
3584 QemuOpts *device;
3585
3586 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3587 1, NULL);
3588 if (!fsdev) {
3589 error_report("duplicate option: %s", "virtfs_synth");
3590 exit(1);
3591 }
3592 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3593
3594 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3595 &error_abort);
3596 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3597 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3598 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3599 break;
3600 }
3601 case QEMU_OPTION_serial:
3602 add_device_config(DEV_SERIAL, optarg);
3603 default_serial = 0;
3604 if (strncmp(optarg, "mon:", 4) == 0) {
3605 default_monitor = 0;
3606 }
3607 break;
3608 case QEMU_OPTION_watchdog:
3609 if (watchdog) {
3610 error_report("only one watchdog option may be given");
3611 return 1;
3612 }
3613 watchdog = optarg;
3614 break;
3615 case QEMU_OPTION_watchdog_action:
3616 if (select_watchdog_action(optarg) == -1) {
3617 error_report("unknown -watchdog-action parameter");
3618 exit(1);
3619 }
3620 break;
3621 case QEMU_OPTION_virtiocon:
3622 add_device_config(DEV_VIRTCON, optarg);
3623 default_virtcon = 0;
3624 if (strncmp(optarg, "mon:", 4) == 0) {
3625 default_monitor = 0;
3626 }
3627 break;
3628 case QEMU_OPTION_parallel:
3629 add_device_config(DEV_PARALLEL, optarg);
3630 default_parallel = 0;
3631 if (strncmp(optarg, "mon:", 4) == 0) {
3632 default_monitor = 0;
3633 }
3634 break;
3635 case QEMU_OPTION_debugcon:
3636 add_device_config(DEV_DEBUGCON, optarg);
3637 break;
3638 case QEMU_OPTION_loadvm:
3639 loadvm = optarg;
3640 break;
3641 case QEMU_OPTION_full_screen:
3642 full_screen = 1;
3643 break;
3644 case QEMU_OPTION_no_frame:
3645 no_frame = 1;
3646 break;
3647 case QEMU_OPTION_alt_grab:
3648 alt_grab = 1;
3649 break;
3650 case QEMU_OPTION_ctrl_grab:
3651 ctrl_grab = 1;
3652 break;
3653 case QEMU_OPTION_no_quit:
3654 no_quit = 1;
3655 break;
3656 case QEMU_OPTION_sdl:
3657 #ifdef CONFIG_SDL
3658 display_type = DT_SDL;
3659 break;
3660 #else
3661 error_report("SDL support is disabled");
3662 exit(1);
3663 #endif
3664 case QEMU_OPTION_pidfile:
3665 pid_file = optarg;
3666 break;
3667 case QEMU_OPTION_win2k_hack:
3668 win2k_install_hack = 1;
3669 break;
3670 case QEMU_OPTION_rtc_td_hack: {
3671 static GlobalProperty slew_lost_ticks = {
3672 .driver = "mc146818rtc",
3673 .property = "lost_tick_policy",
3674 .value = "slew",
3675 };
3676
3677 qdev_prop_register_global(&slew_lost_ticks);
3678 break;
3679 }
3680 case QEMU_OPTION_acpitable:
3681 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3682 optarg, true);
3683 if (!opts) {
3684 exit(1);
3685 }
3686 acpi_table_add(opts, &error_fatal);
3687 break;
3688 case QEMU_OPTION_smbios:
3689 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3690 optarg, false);
3691 if (!opts) {
3692 exit(1);
3693 }
3694 smbios_entry_add(opts, &error_fatal);
3695 break;
3696 case QEMU_OPTION_fwcfg:
3697 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3698 optarg, true);
3699 if (opts == NULL) {
3700 exit(1);
3701 }
3702 break;
3703 case QEMU_OPTION_enable_kvm:
3704 olist = qemu_find_opts("machine");
3705 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3706 break;
3707 case QEMU_OPTION_enable_hax:
3708 olist = qemu_find_opts("machine");
3709 qemu_opts_parse_noisily(olist, "accel=hax", false);
3710 break;
3711 case QEMU_OPTION_M:
3712 case QEMU_OPTION_machine:
3713 olist = qemu_find_opts("machine");
3714 opts = qemu_opts_parse_noisily(olist, optarg, true);
3715 if (!opts) {
3716 exit(1);
3717 }
3718 break;
3719 case QEMU_OPTION_no_kvm:
3720 olist = qemu_find_opts("machine");
3721 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3722 break;
3723 case QEMU_OPTION_no_kvm_pit_reinjection: {
3724 static GlobalProperty kvm_pit_lost_tick_policy = {
3725 .driver = "kvm-pit",
3726 .property = "lost_tick_policy",
3727 .value = "discard",
3728 };
3729
3730 warn_report("deprecated, replaced by "
3731 "-global kvm-pit.lost_tick_policy=discard");
3732 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3733 break;
3734 }
3735 case QEMU_OPTION_accel:
3736 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3737 optarg, true);
3738 optarg = qemu_opt_get(accel_opts, "accel");
3739 if (!optarg || is_help_option(optarg)) {
3740 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3741 exit(0);
3742 }
3743 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3744 false, &error_abort);
3745 qemu_opt_set(opts, "accel", optarg, &error_abort);
3746 break;
3747 case QEMU_OPTION_usb:
3748 olist = qemu_find_opts("machine");
3749 qemu_opts_parse_noisily(olist, "usb=on", false);
3750 break;
3751 case QEMU_OPTION_usbdevice:
3752 error_report("'-usbdevice' is deprecated, please use "
3753 "'-device usb-...' instead");
3754 olist = qemu_find_opts("machine");
3755 qemu_opts_parse_noisily(olist, "usb=on", false);
3756 add_device_config(DEV_USB, optarg);
3757 break;
3758 case QEMU_OPTION_device:
3759 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3760 optarg, true)) {
3761 exit(1);
3762 }
3763 break;
3764 case QEMU_OPTION_smp:
3765 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3766 optarg, true)) {
3767 exit(1);
3768 }
3769 break;
3770 case QEMU_OPTION_vnc:
3771 vnc_parse(optarg, &error_fatal);
3772 break;
3773 case QEMU_OPTION_no_acpi:
3774 acpi_enabled = 0;
3775 break;
3776 case QEMU_OPTION_no_hpet:
3777 no_hpet = 1;
3778 break;
3779 case QEMU_OPTION_balloon:
3780 if (balloon_parse(optarg) < 0) {
3781 error_report("unknown -balloon argument %s", optarg);
3782 exit(1);
3783 }
3784 break;
3785 case QEMU_OPTION_no_reboot:
3786 no_reboot = 1;
3787 break;
3788 case QEMU_OPTION_no_shutdown:
3789 no_shutdown = 1;
3790 break;
3791 case QEMU_OPTION_show_cursor:
3792 cursor_hide = 0;
3793 break;
3794 case QEMU_OPTION_uuid:
3795 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3796 error_report("failed to parse UUID string: wrong format");
3797 exit(1);
3798 }
3799 qemu_uuid_set = true;
3800 break;
3801 case QEMU_OPTION_option_rom:
3802 if (nb_option_roms >= MAX_OPTION_ROMS) {
3803 error_report("too many option ROMs");
3804 exit(1);
3805 }
3806 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3807 optarg, true);
3808 if (!opts) {
3809 exit(1);
3810 }
3811 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3812 option_rom[nb_option_roms].bootindex =
3813 qemu_opt_get_number(opts, "bootindex", -1);
3814 if (!option_rom[nb_option_roms].name) {
3815 error_report("Option ROM file is not specified");
3816 exit(1);
3817 }
3818 nb_option_roms++;
3819 break;
3820 case QEMU_OPTION_semihosting:
3821 semihosting.enabled = true;
3822 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3823 break;
3824 case QEMU_OPTION_semihosting_config:
3825 semihosting.enabled = true;
3826 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3827 optarg, false);
3828 if (opts != NULL) {
3829 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3830 true);
3831 const char *target = qemu_opt_get(opts, "target");
3832 if (target != NULL) {
3833 if (strcmp("native", target) == 0) {
3834 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3835 } else if (strcmp("gdb", target) == 0) {
3836 semihosting.target = SEMIHOSTING_TARGET_GDB;
3837 } else if (strcmp("auto", target) == 0) {
3838 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3839 } else {
3840 error_report("unsupported semihosting-config %s",
3841 optarg);
3842 exit(1);
3843 }
3844 } else {
3845 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3846 }
3847 /* Set semihosting argument count and vector */
3848 qemu_opt_foreach(opts, add_semihosting_arg,
3849 &semihosting, NULL);
3850 } else {
3851 error_report("unsupported semihosting-config %s", optarg);
3852 exit(1);
3853 }
3854 break;
3855 case QEMU_OPTION_tdf:
3856 warn_report("ignoring deprecated option");
3857 break;
3858 case QEMU_OPTION_name:
3859 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3860 optarg, true);
3861 if (!opts) {
3862 exit(1);
3863 }
3864 break;
3865 case QEMU_OPTION_prom_env:
3866 if (nb_prom_envs >= MAX_PROM_ENVS) {
3867 error_report("too many prom variables");
3868 exit(1);
3869 }
3870 prom_envs[nb_prom_envs] = optarg;
3871 nb_prom_envs++;
3872 break;
3873 case QEMU_OPTION_old_param:
3874 old_param = 1;
3875 break;
3876 case QEMU_OPTION_clock:
3877 /* Clock options no longer exist. Keep this option for
3878 * backward compatibility.
3879 */
3880 break;
3881 case QEMU_OPTION_startdate:
3882 configure_rtc_date_offset(optarg, 1);
3883 break;
3884 case QEMU_OPTION_rtc:
3885 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3886 false);
3887 if (!opts) {
3888 exit(1);
3889 }
3890 configure_rtc(opts);
3891 break;
3892 case QEMU_OPTION_tb_size:
3893 #ifndef CONFIG_TCG
3894 error_report("TCG is disabled");
3895 exit(1);
3896 #endif
3897 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3898 error_report("Invalid argument to -tb-size");
3899 exit(1);
3900 }
3901 break;
3902 case QEMU_OPTION_icount:
3903 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3904 optarg, true);
3905 if (!icount_opts) {
3906 exit(1);
3907 }
3908 break;
3909 case QEMU_OPTION_incoming:
3910 if (!incoming) {
3911 runstate_set(RUN_STATE_INMIGRATE);
3912 }
3913 incoming = optarg;
3914 break;
3915 case QEMU_OPTION_only_migratable:
3916 /*
3917 * TODO: we can remove this option one day, and we
3918 * should all use:
3919 *
3920 * "-global migration.only-migratable=true"
3921 */
3922 qemu_global_option("migration.only-migratable=true");
3923 break;
3924 case QEMU_OPTION_nodefaults:
3925 has_defaults = 0;
3926 break;
3927 case QEMU_OPTION_xen_domid:
3928 if (!(xen_available())) {
3929 error_report("Option not supported for this target");
3930 exit(1);
3931 }
3932 xen_domid = atoi(optarg);
3933 break;
3934 case QEMU_OPTION_xen_create:
3935 if (!(xen_available())) {
3936 error_report("Option not supported for this target");
3937 exit(1);
3938 }
3939 xen_mode = XEN_CREATE;
3940 break;
3941 case QEMU_OPTION_xen_attach:
3942 if (!(xen_available())) {
3943 error_report("Option not supported for this target");
3944 exit(1);
3945 }
3946 xen_mode = XEN_ATTACH;
3947 break;
3948 case QEMU_OPTION_xen_domid_restrict:
3949 if (!(xen_available())) {
3950 error_report("Option not supported for this target");
3951 exit(1);
3952 }
3953 xen_domid_restrict = true;
3954 break;
3955 case QEMU_OPTION_trace:
3956 g_free(trace_file);
3957 trace_file = trace_opt_parse(optarg);
3958 break;
3959 case QEMU_OPTION_readconfig:
3960 {
3961 int ret = qemu_read_config_file(optarg);
3962 if (ret < 0) {
3963 error_report("read config %s: %s", optarg,
3964 strerror(-ret));
3965 exit(1);
3966 }
3967 break;
3968 }
3969 case QEMU_OPTION_spice:
3970 olist = qemu_find_opts("spice");
3971 if (!olist) {
3972 error_report("spice support is disabled");
3973 exit(1);
3974 }
3975 opts = qemu_opts_parse_noisily(olist, optarg, false);
3976 if (!opts) {
3977 exit(1);
3978 }
3979 display_remote++;
3980 break;
3981 case QEMU_OPTION_writeconfig:
3982 {
3983 FILE *fp;
3984 if (strcmp(optarg, "-") == 0) {
3985 fp = stdout;
3986 } else {
3987 fp = fopen(optarg, "w");
3988 if (fp == NULL) {
3989 error_report("open %s: %s", optarg,
3990 strerror(errno));
3991 exit(1);
3992 }
3993 }
3994 qemu_config_write(fp);
3995 if (fp != stdout) {
3996 fclose(fp);
3997 }
3998 break;
3999 }
4000 case QEMU_OPTION_qtest:
4001 qtest_chrdev = optarg;
4002 break;
4003 case QEMU_OPTION_qtest_log:
4004 qtest_log = optarg;
4005 break;
4006 case QEMU_OPTION_sandbox:
4007 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4008 optarg, true);
4009 if (!opts) {
4010 exit(1);
4011 }
4012 break;
4013 case QEMU_OPTION_add_fd:
4014 #ifndef _WIN32
4015 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4016 optarg, false);
4017 if (!opts) {
4018 exit(1);
4019 }
4020 #else
4021 error_report("File descriptor passing is disabled on this "
4022 "platform");
4023 exit(1);
4024 #endif
4025 break;
4026 case QEMU_OPTION_object:
4027 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4028 optarg, true);
4029 if (!opts) {
4030 exit(1);
4031 }
4032 break;
4033 case QEMU_OPTION_realtime:
4034 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4035 optarg, false);
4036 if (!opts) {
4037 exit(1);
4038 }
4039 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4040 break;
4041 case QEMU_OPTION_msg:
4042 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4043 false);
4044 if (!opts) {
4045 exit(1);
4046 }
4047 configure_msg(opts);
4048 break;
4049 case QEMU_OPTION_dump_vmstate:
4050 if (vmstate_dump_file) {
4051 error_report("only one '-dump-vmstate' "
4052 "option may be given");
4053 exit(1);
4054 }
4055 vmstate_dump_file = fopen(optarg, "w");
4056 if (vmstate_dump_file == NULL) {
4057 error_report("open %s: %s", optarg, strerror(errno));
4058 exit(1);
4059 }
4060 break;
4061 default:
4062 os_parse_cmd_args(popt->index, optarg);
4063 }
4064 }
4065 }
4066 /*
4067 * Clear error location left behind by the loop.
4068 * Best done right after the loop. Do not insert code here!
4069 */
4070 loc_set_none();
4071
4072 replay_configure(icount_opts);
4073
4074 machine_class = select_machine();
4075
4076 set_memory_options(&ram_slots, &maxram_size, machine_class);
4077
4078 os_daemonize();
4079 rcu_disable_atfork();
4080
4081 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4082 error_report("could not acquire pid file: %s", strerror(errno));
4083 exit(1);
4084 }
4085
4086 if (qemu_init_main_loop(&main_loop_err)) {
4087 error_report_err(main_loop_err);
4088 exit(1);
4089 }
4090
4091 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4092 parse_sandbox, NULL, NULL)) {
4093 exit(1);
4094 }
4095
4096 if (qemu_opts_foreach(qemu_find_opts("name"),
4097 parse_name, NULL, NULL)) {
4098 exit(1);
4099 }
4100
4101 #ifndef _WIN32
4102 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4103 parse_add_fd, NULL, NULL)) {
4104 exit(1);
4105 }
4106
4107 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4108 cleanup_add_fd, NULL, NULL)) {
4109 exit(1);
4110 }
4111 #endif
4112
4113 current_machine = MACHINE(object_new(object_class_get_name(
4114 OBJECT_CLASS(machine_class))));
4115 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4116 exit(0);
4117 }
4118 object_property_add_child(object_get_root(), "machine",
4119 OBJECT(current_machine), &error_abort);
4120
4121 if (machine_class->minimum_page_bits) {
4122 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4123 /* This would be a board error: specifying a minimum smaller than
4124 * a target's compile-time fixed setting.
4125 */
4126 g_assert_not_reached();
4127 }
4128 }
4129
4130 cpu_exec_init_all();
4131
4132 if (machine_class->hw_version) {
4133 qemu_set_hw_version(machine_class->hw_version);
4134 }
4135
4136 if (cpu_model && is_help_option(cpu_model)) {
4137 list_cpus(stdout, &fprintf, cpu_model);
4138 exit(0);
4139 }
4140
4141 if (!trace_init_backends()) {
4142 exit(1);
4143 }
4144 trace_init_file(trace_file);
4145
4146 /* Open the logfile at this point and set the log mask if necessary.
4147 */
4148 if (log_file) {
4149 qemu_set_log_filename(log_file, &error_fatal);
4150 }
4151
4152 if (log_mask) {
4153 int mask;
4154 mask = qemu_str_to_log_mask(log_mask);
4155 if (!mask) {
4156 qemu_print_log_usage(stdout);
4157 exit(1);
4158 }
4159 qemu_set_log(mask);
4160 } else {
4161 qemu_set_log(0);
4162 }
4163
4164 /* add configured firmware directories */
4165 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4166 for (i = 0; dirs[i] != NULL; i++) {
4167 qemu_add_data_dir(dirs[i]);
4168 }
4169 g_strfreev(dirs);
4170
4171 /* try to find datadir relative to the executable path */
4172 dir = os_find_datadir();
4173 qemu_add_data_dir(dir);
4174 g_free(dir);
4175
4176 /* add the datadir specified when building */
4177 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4178
4179 /* -L help lists the data directories and exits. */
4180 if (list_data_dirs) {
4181 for (i = 0; i < data_dir_idx; i++) {
4182 printf("%s\n", data_dir[i]);
4183 }
4184 exit(0);
4185 }
4186
4187 /* machine_class: default to UP */
4188 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4189 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4190 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4191
4192 /* default to machine_class->default_cpus */
4193 smp_cpus = machine_class->default_cpus;
4194 max_cpus = machine_class->default_cpus;
4195
4196 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4197
4198 /* sanity-check smp_cpus and max_cpus against machine_class */
4199 if (smp_cpus < machine_class->min_cpus) {
4200 error_report("Invalid SMP CPUs %d. The min CPUs "
4201 "supported by machine '%s' is %d", smp_cpus,
4202 machine_class->name, machine_class->min_cpus);
4203 exit(1);
4204 }
4205 if (max_cpus > machine_class->max_cpus) {
4206 error_report("Invalid SMP CPUs %d. The max CPUs "
4207 "supported by machine '%s' is %d", max_cpus,
4208 machine_class->name, machine_class->max_cpus);
4209 exit(1);
4210 }
4211
4212 /*
4213 * Get the default machine options from the machine if it is not already
4214 * specified either by the configuration file or by the command line.
4215 */
4216 if (machine_class->default_machine_opts) {
4217 qemu_opts_set_defaults(qemu_find_opts("machine"),
4218 machine_class->default_machine_opts, 0);
4219 }
4220
4221 qemu_opts_foreach(qemu_find_opts("device"),
4222 default_driver_check, NULL, NULL);
4223 qemu_opts_foreach(qemu_find_opts("global"),
4224 default_driver_check, NULL, NULL);
4225
4226 if (!vga_model && !default_vga) {
4227 vga_interface_type = VGA_DEVICE;
4228 }
4229 if (!has_defaults || machine_class->no_serial) {
4230 default_serial = 0;
4231 }
4232 if (!has_defaults || machine_class->no_parallel) {
4233 default_parallel = 0;
4234 }
4235 if (!has_defaults || !machine_class->use_virtcon) {
4236 default_virtcon = 0;
4237 }
4238 if (!has_defaults || !machine_class->use_sclp) {
4239 default_sclp = 0;
4240 }
4241 if (!has_defaults || machine_class->no_floppy) {
4242 default_floppy = 0;
4243 }
4244 if (!has_defaults || machine_class->no_cdrom) {
4245 default_cdrom = 0;
4246 }
4247 if (!has_defaults || machine_class->no_sdcard) {
4248 default_sdcard = 0;
4249 }
4250 if (!has_defaults) {
4251 default_monitor = 0;
4252 default_net = 0;
4253 default_vga = 0;
4254 }
4255
4256 if (is_daemonized()) {
4257 /* According to documentation and historically, -nographic redirects
4258 * serial port, parallel port and monitor to stdio, which does not work
4259 * with -daemonize. We can redirect these to null instead, but since
4260 * -nographic is legacy, let's just error out.
4261 * We disallow -nographic only if all other ports are not redirected
4262 * explicitly, to not break existing legacy setups which uses
4263 * -nographic _and_ redirects all ports explicitly - this is valid
4264 * usage, -nographic is just a no-op in this case.
4265 */
4266 if (nographic
4267 && (default_parallel || default_serial
4268 || default_monitor || default_virtcon)) {
4269 error_report("-nographic cannot be used with -daemonize");
4270 exit(1);
4271 }
4272 #ifdef CONFIG_CURSES
4273 if (display_type == DT_CURSES) {
4274 error_report("curses display cannot be used with -daemonize");
4275 exit(1);
4276 }
4277 #endif
4278 }
4279
4280 if (nographic) {
4281 if (default_parallel)
4282 add_device_config(DEV_PARALLEL, "null");
4283 if (default_serial && default_monitor) {
4284 add_device_config(DEV_SERIAL, "mon:stdio");
4285 } else if (default_virtcon && default_monitor) {
4286 add_device_config(DEV_VIRTCON, "mon:stdio");
4287 } else if (default_sclp && default_monitor) {
4288 add_device_config(DEV_SCLP, "mon:stdio");
4289 } else {
4290 if (default_serial)
4291 add_device_config(DEV_SERIAL, "stdio");
4292 if (default_virtcon)
4293 add_device_config(DEV_VIRTCON, "stdio");
4294 if (default_sclp) {
4295 add_device_config(DEV_SCLP, "stdio");
4296 }
4297 if (default_monitor)
4298 monitor_parse("stdio", "readline", false);
4299 }
4300 } else {
4301 if (default_serial)
4302 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4303 if (default_parallel)
4304 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4305 if (default_monitor)
4306 monitor_parse("vc:80Cx24C", "readline", false);
4307 if (default_virtcon)
4308 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4309 if (default_sclp) {
4310 add_device_config(DEV_SCLP, "vc:80Cx24C");
4311 }
4312 }
4313
4314 #if defined(CONFIG_VNC)
4315 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4316 display_remote++;
4317 }
4318 #endif
4319 if (display_type == DT_DEFAULT && !display_remote) {
4320 #if defined(CONFIG_GTK)
4321 display_type = DT_GTK;
4322 #elif defined(CONFIG_SDL)
4323 display_type = DT_SDL;
4324 #elif defined(CONFIG_COCOA)
4325 display_type = DT_COCOA;
4326 #elif defined(CONFIG_VNC)
4327 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4328 #else
4329 display_type = DT_NONE;
4330 #endif
4331 }
4332
4333 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4334 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4335 "for SDL, ignoring option");
4336 }
4337 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4338 error_report("-no-quit is only valid for GTK and SDL, "
4339 "ignoring option");
4340 }
4341
4342 if (display_type == DT_GTK) {
4343 early_gtk_display_init(request_opengl);
4344 }
4345
4346 if (display_type == DT_SDL) {
4347 sdl_display_early_init(request_opengl);
4348 }
4349
4350 qemu_console_early_init();
4351
4352 if (request_opengl == 1 && display_opengl == 0) {
4353 #if defined(CONFIG_OPENGL)
4354 error_report("OpenGL is not supported by the display");
4355 #else
4356 error_report("OpenGL support is disabled");
4357 #endif
4358 exit(1);
4359 }
4360
4361 page_size_init();
4362 socket_init();
4363
4364 if (qemu_opts_foreach(qemu_find_opts("object"),
4365 user_creatable_add_opts_foreach,
4366 object_create_initial, NULL)) {
4367 exit(1);
4368 }
4369
4370 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4371 chardev_init_func, NULL, NULL)) {
4372 exit(1);
4373 }
4374
4375 #ifdef CONFIG_VIRTFS
4376 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4377 fsdev_init_func, NULL, NULL)) {
4378 exit(1);
4379 }
4380 #endif
4381
4382 if (qemu_opts_foreach(qemu_find_opts("device"),
4383 device_help_func, NULL, NULL)) {
4384 exit(0);
4385 }
4386
4387 machine_opts = qemu_get_machine_opts();
4388 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4389 NULL)) {
4390 object_unref(OBJECT(current_machine));
4391 exit(1);
4392 }
4393
4394 configure_accelerator(current_machine);
4395
4396 /*
4397 * Register all the global properties, including accel properties,
4398 * machine properties, and user-specified ones.
4399 */
4400 register_global_properties(current_machine);
4401
4402 /*
4403 * Migration object can only be created after global properties
4404 * are applied correctly.
4405 */
4406 migration_object_init();
4407
4408 if (qtest_chrdev) {
4409 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4410 }
4411
4412 machine_opts = qemu_get_machine_opts();
4413 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4414 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4415 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4416 bios_name = qemu_opt_get(machine_opts, "firmware");
4417
4418 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4419 if (opts) {
4420 boot_order = qemu_opt_get(opts, "order");
4421 if (boot_order) {
4422 validate_bootdevices(boot_order, &error_fatal);
4423 }
4424
4425 boot_once = qemu_opt_get(opts, "once");
4426 if (boot_once) {
4427 validate_bootdevices(boot_once, &error_fatal);
4428 }
4429
4430 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4431 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4432 }
4433
4434 if (!boot_order) {
4435 boot_order = machine_class->default_boot_order;
4436 }
4437
4438 if (!kernel_cmdline) {
4439 kernel_cmdline = "";
4440 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4441 }
4442
4443 linux_boot = (kernel_filename != NULL);
4444
4445 if (!linux_boot && *kernel_cmdline != '\0') {
4446 error_report("-append only allowed with -kernel option");
4447 exit(1);
4448 }
4449
4450 if (!linux_boot && initrd_filename != NULL) {
4451 error_report("-initrd only allowed with -kernel option");
4452 exit(1);
4453 }
4454
4455 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4456 /* fall back to the -kernel/-append */
4457 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4458 }
4459
4460 os_set_line_buffering();
4461
4462 /* spice needs the timers to be initialized by this point */
4463 qemu_spice_init();
4464
4465 cpu_ticks_init();
4466 if (icount_opts) {
4467 if (!tcg_enabled()) {
4468 error_report("-icount is not allowed with hardware virtualization");
4469 exit(1);
4470 }
4471 configure_icount(icount_opts, &error_abort);
4472 qemu_opts_del(icount_opts);
4473 }
4474
4475 if (tcg_enabled()) {
4476 qemu_tcg_configure(accel_opts, &error_fatal);
4477 }
4478
4479 if (default_net) {
4480 QemuOptsList *net = qemu_find_opts("net");
4481 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4482 #ifdef CONFIG_SLIRP
4483 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4484 #endif
4485 }
4486
4487 colo_info_init();
4488
4489 if (net_init_clients() < 0) {
4490 exit(1);
4491 }
4492
4493 if (qemu_opts_foreach(qemu_find_opts("object"),
4494 user_creatable_add_opts_foreach,
4495 object_create_delayed, NULL)) {
4496 exit(1);
4497 }
4498
4499 if (tpm_init() < 0) {
4500 exit(1);
4501 }
4502
4503 /* init the bluetooth world */
4504 if (foreach_device_config(DEV_BT, bt_parse))
4505 exit(1);
4506
4507 if (!xen_enabled()) {
4508 /* On 32-bit hosts, QEMU is limited by virtual address space */
4509 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4510 error_report("at most 2047 MB RAM can be simulated");
4511 exit(1);
4512 }
4513 }
4514
4515 blk_mig_init();
4516 ram_mig_init();
4517
4518 /* If the currently selected machine wishes to override the units-per-bus
4519 * property of its default HBA interface type, do so now. */
4520 if (machine_class->units_per_default_bus) {
4521 override_max_devs(machine_class->block_default_type,
4522 machine_class->units_per_default_bus);
4523 }
4524
4525 /* open the virtual block devices */
4526 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4527 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4528
4529 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4530 loc_push_restore(&bdo->loc);
4531 qmp_blockdev_add(bdo->bdo, &error_fatal);
4532 loc_pop(&bdo->loc);
4533 qapi_free_BlockdevOptions(bdo->bdo);
4534 g_free(bdo);
4535 }
4536 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4537 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4538 NULL, NULL);
4539 }
4540 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4541 &machine_class->block_default_type, NULL)) {
4542 exit(1);
4543 }
4544
4545 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4546 CDROM_OPTS);
4547 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4548 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4549
4550 if (qemu_opts_foreach(qemu_find_opts("mon"),
4551 mon_init_func, NULL, NULL)) {
4552 exit(1);
4553 }
4554
4555 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4556 exit(1);
4557 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4558 exit(1);
4559 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4560 exit(1);
4561 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4562 exit(1);
4563 }
4564 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4565 exit(1);
4566
4567 /* If no default VGA is requested, the default is "none". */
4568 if (default_vga) {
4569 if (machine_class->default_display) {
4570 vga_model = machine_class->default_display;
4571 } else if (vga_interface_available(VGA_CIRRUS)) {
4572 vga_model = "cirrus";
4573 } else if (vga_interface_available(VGA_STD)) {
4574 vga_model = "std";
4575 }
4576 }
4577 if (vga_model) {
4578 select_vgahw(vga_model);
4579 }
4580
4581 if (watchdog) {
4582 i = select_watchdog(watchdog);
4583 if (i > 0)
4584 exit (i == 1 ? 1 : 0);
4585 }
4586
4587 /* This checkpoint is required by replay to separate prior clock
4588 reading from the other reads, because timer polling functions query
4589 clock values from the log. */
4590 replay_checkpoint(CHECKPOINT_INIT);
4591 qdev_machine_init();
4592
4593 current_machine->ram_size = ram_size;
4594 current_machine->maxram_size = maxram_size;
4595 current_machine->ram_slots = ram_slots;
4596 current_machine->boot_order = boot_order;
4597 current_machine->cpu_model = cpu_model;
4598
4599 /* parse features once if machine provides default cpu_type */
4600 if (machine_class->default_cpu_type) {
4601 current_machine->cpu_type = machine_class->default_cpu_type;
4602 if (cpu_model) {
4603 current_machine->cpu_type =
4604 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4605 }
4606 }
4607 parse_numa_opts(current_machine);
4608
4609 machine_run_board_init(current_machine);
4610
4611 realtime_init();
4612
4613 soundhw_init();
4614
4615 if (hax_enabled()) {
4616 hax_sync_vcpus();
4617 }
4618
4619 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4620 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4621 exit(1);
4622 }
4623
4624 /* init USB devices */
4625 if (machine_usb(current_machine)) {
4626 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4627 exit(1);
4628 }
4629
4630 /* Check if IGD GFX passthrough. */
4631 igd_gfx_passthru();
4632
4633 /* init generic devices */
4634 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4635 if (qemu_opts_foreach(qemu_find_opts("device"),
4636 device_init_func, NULL, NULL)) {
4637 exit(1);
4638 }
4639
4640 cpu_synchronize_all_post_init();
4641
4642 rom_reset_order_override();
4643
4644 /*
4645 * Create frontends for -drive if=scsi leftovers.
4646 * Normally, frontends for -drive get created by machine
4647 * initialization for onboard SCSI HBAs. However, we create a few
4648 * more ever since SCSI qdevification, but this is pretty much an
4649 * implementation accident, and deprecated.
4650 */
4651 scsi_legacy_handle_cmdline();
4652
4653 /* Did we create any drives that we failed to create a device for? */
4654 drive_check_orphaned();
4655
4656 /* Don't warn about the default network setup that you get if
4657 * no command line -net or -netdev options are specified. There
4658 * are two cases that we would otherwise complain about:
4659 * (1) board doesn't support a NIC but the implicit "-net nic"
4660 * requested one
4661 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4662 * sets up a nic that isn't connected to anything.
4663 */
4664 if (!default_net) {
4665 net_check_clients();
4666 }
4667
4668
4669 if (boot_once) {
4670 qemu_boot_set(boot_once, &error_fatal);
4671 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4672 }
4673
4674 ds = init_displaystate();
4675
4676 /* init local displays */
4677 switch (display_type) {
4678 case DT_CURSES:
4679 curses_display_init(ds, full_screen);
4680 break;
4681 case DT_SDL:
4682 sdl_display_init(ds, full_screen);
4683 break;
4684 case DT_COCOA:
4685 cocoa_display_init(ds, full_screen);
4686 break;
4687 case DT_GTK:
4688 gtk_display_init(ds, full_screen, grab_on_hover);
4689 break;
4690 default:
4691 break;
4692 }
4693
4694 /* must be after terminal init, SDL library changes signal handlers */
4695 os_setup_signal_handling();
4696
4697 /* init remote displays */
4698 #ifdef CONFIG_VNC
4699 qemu_opts_foreach(qemu_find_opts("vnc"),
4700 vnc_init_func, NULL, NULL);
4701 #endif
4702
4703 if (using_spice) {
4704 qemu_spice_display_init();
4705 }
4706
4707 #ifdef CONFIG_OPENGL_DMABUF
4708 if (display_type == DT_EGL) {
4709 egl_headless_init();
4710 }
4711 #endif
4712
4713 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4714 exit(1);
4715 }
4716
4717 qdev_machine_creation_done();
4718
4719 /* TODO: once all bus devices are qdevified, this should be done
4720 * when bus is created by qdev.c */
4721 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4722 qemu_run_machine_init_done_notifiers();
4723
4724 if (rom_check_and_register_reset() != 0) {
4725 error_report("rom check and register reset failed");
4726 exit(1);
4727 }
4728
4729 replay_start();
4730
4731 /* This checkpoint is required by replay to separate prior clock
4732 reading from the other reads, because timer polling functions query
4733 clock values from the log. */
4734 replay_checkpoint(CHECKPOINT_RESET);
4735 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4736 register_global_state();
4737 if (replay_mode != REPLAY_MODE_NONE) {
4738 replay_vmstate_init();
4739 } else if (loadvm) {
4740 Error *local_err = NULL;
4741 if (load_snapshot(loadvm, &local_err) < 0) {
4742 error_report_err(local_err);
4743 autostart = 0;
4744 }
4745 }
4746
4747 qdev_prop_check_globals();
4748 if (vmstate_dump_file) {
4749 /* dump and exit */
4750 dump_vmstate_json_to_file(vmstate_dump_file);
4751 return 0;
4752 }
4753
4754 if (incoming) {
4755 Error *local_err = NULL;
4756 qemu_start_incoming_migration(incoming, &local_err);
4757 if (local_err) {
4758 error_reportf_err(local_err, "-incoming %s: ", incoming);
4759 exit(1);
4760 }
4761 } else if (autostart) {
4762 vm_start();
4763 }
4764
4765 os_setup_post();
4766
4767 main_loop();
4768 replay_disable_events();
4769 iothread_stop_all();
4770
4771 pause_all_vcpus();
4772 bdrv_close_all();
4773 res_free();
4774
4775 /* vhost-user must be cleaned up before chardevs. */
4776 tpm_cleanup();
4777 net_cleanup();
4778 audio_cleanup();
4779 monitor_cleanup();
4780 qemu_chr_cleanup();
4781 user_creatable_cleanup();
4782 migration_object_finalize();
4783 /* TODO: unref root container, check all devices are ok */
4784
4785 return 0;
4786 }
QEmu