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test-bdrv-drain: Test draining job source child and parent
[qemu.git] / vl.c
blob694bb67890422f885a712480fee6e249fb7ddda6
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
33
34 #ifdef CONFIG_SDL
35 #if defined(__APPLE__) || defined(main)
36 #include <SDL.h>
37 int qemu_main(int argc, char **argv, char **envp);
38 int main(int argc, char **argv)
39 {
40 return qemu_main(argc, argv, NULL);
41 }
42 #undef main
43 #define main qemu_main
44 #endif
45 #endif /* CONFIG_SDL */
46
47 #ifdef CONFIG_COCOA
48 #undef main
49 #define main qemu_main
50 #endif /* CONFIG_COCOA */
51
52
53 #include "qemu/error-report.h"
54 #include "qemu/sockets.h"
55 #include "hw/hw.h"
56 #include "hw/boards.h"
57 #include "sysemu/accel.h"
58 #include "hw/usb.h"
59 #include "hw/isa/isa.h"
60 #include "hw/scsi/scsi.h"
61 #include "hw/display/vga.h"
62 #include "hw/bt.h"
63 #include "sysemu/watchdog.h"
64 #include "hw/smbios/smbios.h"
65 #include "hw/acpi/acpi.h"
66 #include "hw/xen/xen.h"
67 #include "hw/qdev.h"
68 #include "hw/loader.h"
69 #include "monitor/qdev.h"
70 #include "sysemu/bt.h"
71 #include "net/net.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
75 #include "ui/input.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
82 #include "qemu/log.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
102 #ifdef CONFIG_VIRTFS
103 #include "fsdev/qemu-fsdev.h"
104 #endif
105 #include "sysemu/qtest.h"
106
107 #include "disas/disas.h"
108
109
110 #include "slirp/libslirp.h"
111
112 #include "trace-root.h"
113 #include "trace/control.h"
114 #include "qemu/queue.h"
115 #include "sysemu/arch_init.h"
116
117 #include "ui/qemu-spice.h"
118 #include "qapi/string-input-visitor.h"
119 #include "qapi/opts-visitor.h"
120 #include "qapi/clone-visitor.h"
121 #include "qom/object_interfaces.h"
122 #include "exec/semihost.h"
123 #include "crypto/init.h"
124 #include "sysemu/replay.h"
125 #include "qapi/qapi-events-run-state.h"
126 #include "qapi/qapi-visit-block-core.h"
127 #include "qapi/qapi-visit-ui.h"
128 #include "qapi/qapi-commands-block-core.h"
129 #include "qapi/qapi-commands-misc.h"
130 #include "qapi/qapi-commands-run-state.h"
131 #include "qapi/qmp/qerror.h"
132 #include "sysemu/iothread.h"
133
134 #define MAX_VIRTIO_CONSOLES 1
135
136 static const char *data_dir[16];
137 static int data_dir_idx;
138 const char *bios_name = NULL;
139 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
140 int display_opengl;
141 const char* keyboard_layout = NULL;
142 ram_addr_t ram_size;
143 const char *mem_path = NULL;
144 int mem_prealloc = 0; /* force preallocation of physical target memory */
145 bool enable_mlock = false;
146 bool enable_cpu_pm = false;
147 int nb_nics;
148 NICInfo nd_table[MAX_NICS];
149 int autostart;
150 static int rtc_utc = 1;
151 static int rtc_date_offset = -1; /* -1 means no change */
152 QEMUClockType rtc_clock;
153 int vga_interface_type = VGA_NONE;
154 static DisplayOptions dpy;
155 int no_frame;
156 static int num_serial_hds;
157 static Chardev **serial_hds;
158 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
159 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
160 int win2k_install_hack = 0;
161 int singlestep = 0;
162 int smp_cpus;
163 unsigned int max_cpus;
164 int smp_cores = 1;
165 int smp_threads = 1;
166 int acpi_enabled = 1;
167 int no_hpet = 0;
168 int fd_bootchk = 1;
169 static int no_reboot;
170 int no_shutdown = 0;
171 int cursor_hide = 1;
172 int graphic_rotate = 0;
173 const char *watchdog;
174 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
175 int nb_option_roms;
176 int old_param = 0;
177 const char *qemu_name;
178 int alt_grab = 0;
179 int ctrl_grab = 0;
180 unsigned int nb_prom_envs = 0;
181 const char *prom_envs[MAX_PROM_ENVS];
182 int boot_menu;
183 bool boot_strict;
184 uint8_t *boot_splash_filedata;
185 size_t boot_splash_filedata_size;
186 uint8_t qemu_extra_params_fw[2];
187
188 int icount_align_option;
189
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
192 */
193 QemuUUID qemu_uuid;
194 bool qemu_uuid_set;
195
196 static NotifierList exit_notifiers =
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
198
199 static NotifierList machine_init_done_notifiers =
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
201
202 bool xen_allowed;
203 uint32_t xen_domid;
204 enum xen_mode xen_mode = XEN_EMULATE;
205 bool xen_domid_restrict;
206
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_virtcon = 1;
211 static int default_monitor = 1;
212 static int default_floppy = 1;
213 static int default_cdrom = 1;
214 static int default_sdcard = 1;
215 static int default_vga = 1;
216 static int default_net = 1;
217
218 static struct {
219 const char *driver;
220 int *flag;
221 } default_list[] = {
222 { .driver = "isa-serial", .flag = &default_serial },
223 { .driver = "isa-parallel", .flag = &default_parallel },
224 { .driver = "isa-fdc", .flag = &default_floppy },
225 { .driver = "floppy", .flag = &default_floppy },
226 { .driver = "ide-cd", .flag = &default_cdrom },
227 { .driver = "ide-hd", .flag = &default_cdrom },
228 { .driver = "ide-drive", .flag = &default_cdrom },
229 { .driver = "scsi-cd", .flag = &default_cdrom },
230 { .driver = "scsi-hd", .flag = &default_cdrom },
231 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
232 { .driver = "virtio-serial", .flag = &default_virtcon },
233 { .driver = "VGA", .flag = &default_vga },
234 { .driver = "isa-vga", .flag = &default_vga },
235 { .driver = "cirrus-vga", .flag = &default_vga },
236 { .driver = "isa-cirrus-vga", .flag = &default_vga },
237 { .driver = "vmware-svga", .flag = &default_vga },
238 { .driver = "qxl-vga", .flag = &default_vga },
239 { .driver = "virtio-vga", .flag = &default_vga },
240 };
241
242 static QemuOptsList qemu_rtc_opts = {
243 .name = "rtc",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
245 .desc = {
246 {
247 .name = "base",
248 .type = QEMU_OPT_STRING,
249 },{
250 .name = "clock",
251 .type = QEMU_OPT_STRING,
252 },{
253 .name = "driftfix",
254 .type = QEMU_OPT_STRING,
255 },
256 { /* end of list */ }
257 },
258 };
259
260 static QemuOptsList qemu_option_rom_opts = {
261 .name = "option-rom",
262 .implied_opt_name = "romfile",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
264 .desc = {
265 {
266 .name = "bootindex",
267 .type = QEMU_OPT_NUMBER,
268 }, {
269 .name = "romfile",
270 .type = QEMU_OPT_STRING,
271 },
272 { /* end of list */ }
273 },
274 };
275
276 static QemuOptsList qemu_machine_opts = {
277 .name = "machine",
278 .implied_opt_name = "type",
279 .merge_lists = true,
280 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
281 .desc = {
282 /*
283 * no elements => accept any
284 * sanity checking will happen later
285 * when setting machine properties
286 */
287 { }
288 },
289 };
290
291 static QemuOptsList qemu_accel_opts = {
292 .name = "accel",
293 .implied_opt_name = "accel",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
295 .merge_lists = true,
296 .desc = {
297 {
298 .name = "accel",
299 .type = QEMU_OPT_STRING,
300 .help = "Select the type of accelerator",
301 },
302 {
303 .name = "thread",
304 .type = QEMU_OPT_STRING,
305 .help = "Enable/disable multi-threaded TCG",
306 },
307 { /* end of list */ }
308 },
309 };
310
311 static QemuOptsList qemu_boot_opts = {
312 .name = "boot-opts",
313 .implied_opt_name = "order",
314 .merge_lists = true,
315 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
316 .desc = {
317 {
318 .name = "order",
319 .type = QEMU_OPT_STRING,
320 }, {
321 .name = "once",
322 .type = QEMU_OPT_STRING,
323 }, {
324 .name = "menu",
325 .type = QEMU_OPT_BOOL,
326 }, {
327 .name = "splash",
328 .type = QEMU_OPT_STRING,
329 }, {
330 .name = "splash-time",
331 .type = QEMU_OPT_STRING,
332 }, {
333 .name = "reboot-timeout",
334 .type = QEMU_OPT_STRING,
335 }, {
336 .name = "strict",
337 .type = QEMU_OPT_BOOL,
338 },
339 { /*End of list */ }
340 },
341 };
342
343 static QemuOptsList qemu_add_fd_opts = {
344 .name = "add-fd",
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
346 .desc = {
347 {
348 .name = "fd",
349 .type = QEMU_OPT_NUMBER,
350 .help = "file descriptor of which a duplicate is added to fd set",
351 },{
352 .name = "set",
353 .type = QEMU_OPT_NUMBER,
354 .help = "ID of the fd set to add fd to",
355 },{
356 .name = "opaque",
357 .type = QEMU_OPT_STRING,
358 .help = "free-form string used to describe fd",
359 },
360 { /* end of list */ }
361 },
362 };
363
364 static QemuOptsList qemu_object_opts = {
365 .name = "object",
366 .implied_opt_name = "qom-type",
367 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
368 .desc = {
369 { }
370 },
371 };
372
373 static QemuOptsList qemu_tpmdev_opts = {
374 .name = "tpmdev",
375 .implied_opt_name = "type",
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
377 .desc = {
378 /* options are defined in the TPM backends */
379 { /* end of list */ }
380 },
381 };
382
383 static QemuOptsList qemu_realtime_opts = {
384 .name = "realtime",
385 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
386 .desc = {
387 {
388 .name = "mlock",
389 .type = QEMU_OPT_BOOL,
390 },
391 { /* end of list */ }
392 },
393 };
394
395 static QemuOptsList qemu_overcommit_opts = {
396 .name = "overcommit",
397 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
398 .desc = {
399 {
400 .name = "mem-lock",
401 .type = QEMU_OPT_BOOL,
402 },
403 {
404 .name = "cpu-pm",
405 .type = QEMU_OPT_BOOL,
406 },
407 { /* end of list */ }
408 },
409 };
410
411 static QemuOptsList qemu_msg_opts = {
412 .name = "msg",
413 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
414 .desc = {
415 {
416 .name = "timestamp",
417 .type = QEMU_OPT_BOOL,
418 },
419 { /* end of list */ }
420 },
421 };
422
423 static QemuOptsList qemu_name_opts = {
424 .name = "name",
425 .implied_opt_name = "guest",
426 .merge_lists = true,
427 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
428 .desc = {
429 {
430 .name = "guest",
431 .type = QEMU_OPT_STRING,
432 .help = "Sets the name of the guest.\n"
433 "This name will be displayed in the SDL window caption.\n"
434 "The name will also be used for the VNC server",
435 }, {
436 .name = "process",
437 .type = QEMU_OPT_STRING,
438 .help = "Sets the name of the QEMU process, as shown in top etc",
439 }, {
440 .name = "debug-threads",
441 .type = QEMU_OPT_BOOL,
442 .help = "When enabled, name the individual threads; defaults off.\n"
443 "NOTE: The thread names are for debugging and not a\n"
444 "stable API.",
445 },
446 { /* End of list */ }
447 },
448 };
449
450 static QemuOptsList qemu_mem_opts = {
451 .name = "memory",
452 .implied_opt_name = "size",
453 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
454 .merge_lists = true,
455 .desc = {
456 {
457 .name = "size",
458 .type = QEMU_OPT_SIZE,
459 },
460 {
461 .name = "slots",
462 .type = QEMU_OPT_NUMBER,
463 },
464 {
465 .name = "maxmem",
466 .type = QEMU_OPT_SIZE,
467 },
468 { /* end of list */ }
469 },
470 };
471
472 static QemuOptsList qemu_icount_opts = {
473 .name = "icount",
474 .implied_opt_name = "shift",
475 .merge_lists = true,
476 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
477 .desc = {
478 {
479 .name = "shift",
480 .type = QEMU_OPT_STRING,
481 }, {
482 .name = "align",
483 .type = QEMU_OPT_BOOL,
484 }, {
485 .name = "sleep",
486 .type = QEMU_OPT_BOOL,
487 }, {
488 .name = "rr",
489 .type = QEMU_OPT_STRING,
490 }, {
491 .name = "rrfile",
492 .type = QEMU_OPT_STRING,
493 }, {
494 .name = "rrsnapshot",
495 .type = QEMU_OPT_STRING,
496 },
497 { /* end of list */ }
498 },
499 };
500
501 static QemuOptsList qemu_semihosting_config_opts = {
502 .name = "semihosting-config",
503 .implied_opt_name = "enable",
504 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
505 .desc = {
506 {
507 .name = "enable",
508 .type = QEMU_OPT_BOOL,
509 }, {
510 .name = "target",
511 .type = QEMU_OPT_STRING,
512 }, {
513 .name = "arg",
514 .type = QEMU_OPT_STRING,
515 },
516 { /* end of list */ }
517 },
518 };
519
520 static QemuOptsList qemu_fw_cfg_opts = {
521 .name = "fw_cfg",
522 .implied_opt_name = "name",
523 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
524 .desc = {
525 {
526 .name = "name",
527 .type = QEMU_OPT_STRING,
528 .help = "Sets the fw_cfg name of the blob to be inserted",
529 }, {
530 .name = "file",
531 .type = QEMU_OPT_STRING,
532 .help = "Sets the name of the file from which\n"
533 "the fw_cfg blob will be loaded",
534 }, {
535 .name = "string",
536 .type = QEMU_OPT_STRING,
537 .help = "Sets content of the blob to be inserted from a string",
538 },
539 { /* end of list */ }
540 },
541 };
542
543 /**
544 * Get machine options
545 *
546 * Returns: machine options (never null).
547 */
548 QemuOpts *qemu_get_machine_opts(void)
549 {
550 return qemu_find_opts_singleton("machine");
551 }
552
553 const char *qemu_get_vm_name(void)
554 {
555 return qemu_name;
556 }
557
558 static void res_free(void)
559 {
560 g_free(boot_splash_filedata);
561 boot_splash_filedata = NULL;
562 }
563
564 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
565 {
566 const char *driver = qemu_opt_get(opts, "driver");
567 int i;
568
569 if (!driver)
570 return 0;
571 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
572 if (strcmp(default_list[i].driver, driver) != 0)
573 continue;
574 *(default_list[i].flag) = 0;
575 }
576 return 0;
577 }
578
579 /***********************************************************/
580 /* QEMU state */
581
582 static RunState current_run_state = RUN_STATE_PRECONFIG;
583
584 /* We use RUN_STATE__MAX but any invalid value will do */
585 static RunState vmstop_requested = RUN_STATE__MAX;
586 static QemuMutex vmstop_lock;
587
588 typedef struct {
589 RunState from;
590 RunState to;
591 } RunStateTransition;
592
593 static const RunStateTransition runstate_transitions_def[] = {
594 /* from -> to */
595 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
596 /* Early switch to inmigrate state to allow -incoming CLI option work
597 * as it used to. TODO: delay actual switching to inmigrate state to
598 * the point after machine is built and remove this hack.
599 */
600 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
601
602 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
603 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
604 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
605
606 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
607 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
608 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
609 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
610 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
611 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
612 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
613 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
615 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
616 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
617 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
618
619 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
620 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
622
623 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
624 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
625 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
626
627 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
628 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
630 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
631 { RUN_STATE_PAUSED, RUN_STATE_COLO},
632
633 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
634 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
636
637 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
638 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
640
641 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
642 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
646
647 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
648 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
649
650 { RUN_STATE_COLO, RUN_STATE_RUNNING },
651
652 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
653 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
654 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
655 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
656 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
657 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
658 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
659 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
660 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
661 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
662 { RUN_STATE_RUNNING, RUN_STATE_COLO},
663
664 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
665
666 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
667 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
668 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
669
670 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
671 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
672 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
673 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
674 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
675 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
676
677 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
678 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
679 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
680 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
681
682 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
683 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
685
686 { RUN_STATE__MAX, RUN_STATE__MAX },
687 };
688
689 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
690
691 bool runstate_check(RunState state)
692 {
693 return current_run_state == state;
694 }
695
696 bool runstate_store(char *str, size_t size)
697 {
698 const char *state = RunState_str(current_run_state);
699 size_t len = strlen(state) + 1;
700
701 if (len > size) {
702 return false;
703 }
704 memcpy(str, state, len);
705 return true;
706 }
707
708 static void runstate_init(void)
709 {
710 const RunStateTransition *p;
711
712 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
713 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
714 runstate_valid_transitions[p->from][p->to] = true;
715 }
716
717 qemu_mutex_init(&vmstop_lock);
718 }
719
720 /* This function will abort() on invalid state transitions */
721 void runstate_set(RunState new_state)
722 {
723 assert(new_state < RUN_STATE__MAX);
724
725 if (current_run_state == new_state) {
726 return;
727 }
728
729 if (!runstate_valid_transitions[current_run_state][new_state]) {
730 error_report("invalid runstate transition: '%s' -> '%s'",
731 RunState_str(current_run_state),
732 RunState_str(new_state));
733 abort();
734 }
735 trace_runstate_set(new_state);
736 current_run_state = new_state;
737 }
738
739 int runstate_is_running(void)
740 {
741 return runstate_check(RUN_STATE_RUNNING);
742 }
743
744 bool runstate_needs_reset(void)
745 {
746 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
747 runstate_check(RUN_STATE_SHUTDOWN);
748 }
749
750 StatusInfo *qmp_query_status(Error **errp)
751 {
752 StatusInfo *info = g_malloc0(sizeof(*info));
753
754 info->running = runstate_is_running();
755 info->singlestep = singlestep;
756 info->status = current_run_state;
757
758 return info;
759 }
760
761 bool qemu_vmstop_requested(RunState *r)
762 {
763 qemu_mutex_lock(&vmstop_lock);
764 *r = vmstop_requested;
765 vmstop_requested = RUN_STATE__MAX;
766 qemu_mutex_unlock(&vmstop_lock);
767 return *r < RUN_STATE__MAX;
768 }
769
770 void qemu_system_vmstop_request_prepare(void)
771 {
772 qemu_mutex_lock(&vmstop_lock);
773 }
774
775 void qemu_system_vmstop_request(RunState state)
776 {
777 vmstop_requested = state;
778 qemu_mutex_unlock(&vmstop_lock);
779 qemu_notify_event();
780 }
781
782 /***********************************************************/
783 /* real time host monotonic timer */
784
785 static time_t qemu_time(void)
786 {
787 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
788 }
789
790 /***********************************************************/
791 /* host time/date access */
792 void qemu_get_timedate(struct tm *tm, int offset)
793 {
794 time_t ti = qemu_time();
795
796 ti += offset;
797 if (rtc_date_offset == -1) {
798 if (rtc_utc)
799 gmtime_r(&ti, tm);
800 else
801 localtime_r(&ti, tm);
802 } else {
803 ti -= rtc_date_offset;
804 gmtime_r(&ti, tm);
805 }
806 }
807
808 int qemu_timedate_diff(struct tm *tm)
809 {
810 time_t seconds;
811
812 if (rtc_date_offset == -1)
813 if (rtc_utc)
814 seconds = mktimegm(tm);
815 else {
816 struct tm tmp = *tm;
817 tmp.tm_isdst = -1; /* use timezone to figure it out */
818 seconds = mktime(&tmp);
819 }
820 else
821 seconds = mktimegm(tm) + rtc_date_offset;
822
823 return seconds - qemu_time();
824 }
825
826 static void configure_rtc_date_offset(const char *startdate)
827 {
828 time_t rtc_start_date;
829 struct tm tm;
830
831 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
832 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
833 /* OK */
834 } else if (sscanf(startdate, "%d-%d-%d",
835 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
836 tm.tm_hour = 0;
837 tm.tm_min = 0;
838 tm.tm_sec = 0;
839 } else {
840 goto date_fail;
841 }
842 tm.tm_year -= 1900;
843 tm.tm_mon--;
844 rtc_start_date = mktimegm(&tm);
845 if (rtc_start_date == -1) {
846 date_fail:
847 error_report("invalid date format");
848 error_printf("valid formats: "
849 "'2006-06-17T16:01:21' or '2006-06-17'\n");
850 exit(1);
851 }
852 rtc_date_offset = qemu_time() - rtc_start_date;
853 }
854
855 static void configure_rtc(QemuOpts *opts)
856 {
857 const char *value;
858
859 value = qemu_opt_get(opts, "base");
860 if (value) {
861 if (!strcmp(value, "utc")) {
862 rtc_utc = 1;
863 } else if (!strcmp(value, "localtime")) {
864 Error *blocker = NULL;
865 rtc_utc = 0;
866 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
867 "-rtc base=localtime");
868 replay_add_blocker(blocker);
869 } else {
870 configure_rtc_date_offset(value);
871 }
872 }
873 value = qemu_opt_get(opts, "clock");
874 if (value) {
875 if (!strcmp(value, "host")) {
876 rtc_clock = QEMU_CLOCK_HOST;
877 } else if (!strcmp(value, "rt")) {
878 rtc_clock = QEMU_CLOCK_REALTIME;
879 } else if (!strcmp(value, "vm")) {
880 rtc_clock = QEMU_CLOCK_VIRTUAL;
881 } else {
882 error_report("invalid option value '%s'", value);
883 exit(1);
884 }
885 }
886 value = qemu_opt_get(opts, "driftfix");
887 if (value) {
888 if (!strcmp(value, "slew")) {
889 static GlobalProperty slew_lost_ticks = {
890 .driver = "mc146818rtc",
891 .property = "lost_tick_policy",
892 .value = "slew",
893 };
894
895 qdev_prop_register_global(&slew_lost_ticks);
896 } else if (!strcmp(value, "none")) {
897 /* discard is default */
898 } else {
899 error_report("invalid option value '%s'", value);
900 exit(1);
901 }
902 }
903 }
904
905 /***********************************************************/
906 /* Bluetooth support */
907 static int nb_hcis;
908 static int cur_hci;
909 static struct HCIInfo *hci_table[MAX_NICS];
910
911 struct HCIInfo *qemu_next_hci(void)
912 {
913 if (cur_hci == nb_hcis)
914 return &null_hci;
915
916 return hci_table[cur_hci++];
917 }
918
919 static int bt_hci_parse(const char *str)
920 {
921 struct HCIInfo *hci;
922 bdaddr_t bdaddr;
923
924 if (nb_hcis >= MAX_NICS) {
925 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
926 return -1;
927 }
928
929 hci = hci_init(str);
930 if (!hci)
931 return -1;
932
933 bdaddr.b[0] = 0x52;
934 bdaddr.b[1] = 0x54;
935 bdaddr.b[2] = 0x00;
936 bdaddr.b[3] = 0x12;
937 bdaddr.b[4] = 0x34;
938 bdaddr.b[5] = 0x56 + nb_hcis;
939 hci->bdaddr_set(hci, bdaddr.b);
940
941 hci_table[nb_hcis++] = hci;
942
943 return 0;
944 }
945
946 static void bt_vhci_add(int vlan_id)
947 {
948 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
949
950 if (!vlan->slave)
951 warn_report("adding a VHCI to an empty scatternet %i",
952 vlan_id);
953
954 bt_vhci_init(bt_new_hci(vlan));
955 }
956
957 static struct bt_device_s *bt_device_add(const char *opt)
958 {
959 struct bt_scatternet_s *vlan;
960 int vlan_id = 0;
961 char *endp = strstr(opt, ",vlan=");
962 int len = (endp ? endp - opt : strlen(opt)) + 1;
963 char devname[10];
964
965 pstrcpy(devname, MIN(sizeof(devname), len), opt);
966
967 if (endp) {
968 vlan_id = strtol(endp + 6, &endp, 0);
969 if (*endp) {
970 error_report("unrecognised bluetooth vlan Id");
971 return 0;
972 }
973 }
974
975 vlan = qemu_find_bt_vlan(vlan_id);
976
977 if (!vlan->slave)
978 warn_report("adding a slave device to an empty scatternet %i",
979 vlan_id);
980
981 if (!strcmp(devname, "keyboard"))
982 return bt_keyboard_init(vlan);
983
984 error_report("unsupported bluetooth device '%s'", devname);
985 return 0;
986 }
987
988 static int bt_parse(const char *opt)
989 {
990 const char *endp, *p;
991 int vlan;
992
993 if (strstart(opt, "hci", &endp)) {
994 if (!*endp || *endp == ',') {
995 if (*endp)
996 if (!strstart(endp, ",vlan=", 0))
997 opt = endp + 1;
998
999 return bt_hci_parse(opt);
1000 }
1001 } else if (strstart(opt, "vhci", &endp)) {
1002 if (!*endp || *endp == ',') {
1003 if (*endp) {
1004 if (strstart(endp, ",vlan=", &p)) {
1005 vlan = strtol(p, (char **) &endp, 0);
1006 if (*endp) {
1007 error_report("bad scatternet '%s'", p);
1008 return 1;
1009 }
1010 } else {
1011 error_report("bad parameter '%s'", endp + 1);
1012 return 1;
1013 }
1014 } else
1015 vlan = 0;
1016
1017 bt_vhci_add(vlan);
1018 return 0;
1019 }
1020 } else if (strstart(opt, "device:", &endp))
1021 return !bt_device_add(endp);
1022
1023 error_report("bad bluetooth parameter '%s'", opt);
1024 return 1;
1025 }
1026
1027 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1028 {
1029 const char *proc_name;
1030
1031 if (qemu_opt_get(opts, "debug-threads")) {
1032 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1033 }
1034 qemu_name = qemu_opt_get(opts, "guest");
1035
1036 proc_name = qemu_opt_get(opts, "process");
1037 if (proc_name) {
1038 os_set_proc_name(proc_name);
1039 }
1040
1041 return 0;
1042 }
1043
1044 bool defaults_enabled(void)
1045 {
1046 return has_defaults;
1047 }
1048
1049 #ifndef _WIN32
1050 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1051 {
1052 int fd, dupfd, flags;
1053 int64_t fdset_id;
1054 const char *fd_opaque = NULL;
1055 AddfdInfo *fdinfo;
1056
1057 fd = qemu_opt_get_number(opts, "fd", -1);
1058 fdset_id = qemu_opt_get_number(opts, "set", -1);
1059 fd_opaque = qemu_opt_get(opts, "opaque");
1060
1061 if (fd < 0) {
1062 error_report("fd option is required and must be non-negative");
1063 return -1;
1064 }
1065
1066 if (fd <= STDERR_FILENO) {
1067 error_report("fd cannot be a standard I/O stream");
1068 return -1;
1069 }
1070
1071 /*
1072 * All fds inherited across exec() necessarily have FD_CLOEXEC
1073 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1074 */
1075 flags = fcntl(fd, F_GETFD);
1076 if (flags == -1 || (flags & FD_CLOEXEC)) {
1077 error_report("fd is not valid or already in use");
1078 return -1;
1079 }
1080
1081 if (fdset_id < 0) {
1082 error_report("set option is required and must be non-negative");
1083 return -1;
1084 }
1085
1086 #ifdef F_DUPFD_CLOEXEC
1087 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1088 #else
1089 dupfd = dup(fd);
1090 if (dupfd != -1) {
1091 qemu_set_cloexec(dupfd);
1092 }
1093 #endif
1094 if (dupfd == -1) {
1095 error_report("error duplicating fd: %s", strerror(errno));
1096 return -1;
1097 }
1098
1099 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1100 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1101 &error_abort);
1102 g_free(fdinfo);
1103
1104 return 0;
1105 }
1106
1107 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1108 {
1109 int fd;
1110
1111 fd = qemu_opt_get_number(opts, "fd", -1);
1112 close(fd);
1113
1114 return 0;
1115 }
1116 #endif
1117
1118 /***********************************************************/
1119 /* QEMU Block devices */
1120
1121 #define HD_OPTS "media=disk"
1122 #define CDROM_OPTS "media=cdrom"
1123 #define FD_OPTS ""
1124 #define PFLASH_OPTS ""
1125 #define MTD_OPTS ""
1126 #define SD_OPTS ""
1127
1128 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1129 {
1130 BlockInterfaceType *block_default_type = opaque;
1131
1132 return drive_new(opts, *block_default_type) == NULL;
1133 }
1134
1135 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1136 {
1137 if (qemu_opt_get(opts, "snapshot") == NULL) {
1138 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1139 }
1140 return 0;
1141 }
1142
1143 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1144 int index, const char *optstr)
1145 {
1146 QemuOpts *opts;
1147 DriveInfo *dinfo;
1148
1149 if (!enable || drive_get_by_index(type, index)) {
1150 return;
1151 }
1152
1153 opts = drive_add(type, index, NULL, optstr);
1154 if (snapshot) {
1155 drive_enable_snapshot(NULL, opts, NULL);
1156 }
1157
1158 dinfo = drive_new(opts, type);
1159 if (!dinfo) {
1160 exit(1);
1161 }
1162 dinfo->is_default = true;
1163
1164 }
1165
1166 static QemuOptsList qemu_smp_opts = {
1167 .name = "smp-opts",
1168 .implied_opt_name = "cpus",
1169 .merge_lists = true,
1170 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1171 .desc = {
1172 {
1173 .name = "cpus",
1174 .type = QEMU_OPT_NUMBER,
1175 }, {
1176 .name = "sockets",
1177 .type = QEMU_OPT_NUMBER,
1178 }, {
1179 .name = "cores",
1180 .type = QEMU_OPT_NUMBER,
1181 }, {
1182 .name = "threads",
1183 .type = QEMU_OPT_NUMBER,
1184 }, {
1185 .name = "maxcpus",
1186 .type = QEMU_OPT_NUMBER,
1187 },
1188 { /*End of list */ }
1189 },
1190 };
1191
1192 static void smp_parse(QemuOpts *opts)
1193 {
1194 if (opts) {
1195 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1196 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1197 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1198 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1199
1200 /* compute missing values, prefer sockets over cores over threads */
1201 if (cpus == 0 || sockets == 0) {
1202 sockets = sockets > 0 ? sockets : 1;
1203 cores = cores > 0 ? cores : 1;
1204 threads = threads > 0 ? threads : 1;
1205 if (cpus == 0) {
1206 cpus = cores * threads * sockets;
1207 }
1208 } else if (cores == 0) {
1209 threads = threads > 0 ? threads : 1;
1210 cores = cpus / (sockets * threads);
1211 cores = cores > 0 ? cores : 1;
1212 } else if (threads == 0) {
1213 threads = cpus / (cores * sockets);
1214 threads = threads > 0 ? threads : 1;
1215 } else if (sockets * cores * threads < cpus) {
1216 error_report("cpu topology: "
1217 "sockets (%u) * cores (%u) * threads (%u) < "
1218 "smp_cpus (%u)",
1219 sockets, cores, threads, cpus);
1220 exit(1);
1221 }
1222
1223 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1224
1225 if (max_cpus < cpus) {
1226 error_report("maxcpus must be equal to or greater than smp");
1227 exit(1);
1228 }
1229
1230 if (sockets * cores * threads > max_cpus) {
1231 error_report("cpu topology: "
1232 "sockets (%u) * cores (%u) * threads (%u) > "
1233 "maxcpus (%u)",
1234 sockets, cores, threads, max_cpus);
1235 exit(1);
1236 }
1237
1238 smp_cpus = cpus;
1239 smp_cores = cores;
1240 smp_threads = threads;
1241 }
1242
1243 if (smp_cpus > 1) {
1244 Error *blocker = NULL;
1245 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1246 replay_add_blocker(blocker);
1247 }
1248 }
1249
1250 static void realtime_init(void)
1251 {
1252 if (enable_mlock) {
1253 if (os_mlock() < 0) {
1254 error_report("locking memory failed");
1255 exit(1);
1256 }
1257 }
1258 }
1259
1260
1261 static void configure_msg(QemuOpts *opts)
1262 {
1263 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1264 }
1265
1266 /***********************************************************/
1267 /* Semihosting */
1268
1269 typedef struct SemihostingConfig {
1270 bool enabled;
1271 SemihostingTarget target;
1272 const char **argv;
1273 int argc;
1274 const char *cmdline; /* concatenated argv */
1275 } SemihostingConfig;
1276
1277 static SemihostingConfig semihosting;
1278
1279 bool semihosting_enabled(void)
1280 {
1281 return semihosting.enabled;
1282 }
1283
1284 SemihostingTarget semihosting_get_target(void)
1285 {
1286 return semihosting.target;
1287 }
1288
1289 const char *semihosting_get_arg(int i)
1290 {
1291 if (i >= semihosting.argc) {
1292 return NULL;
1293 }
1294 return semihosting.argv[i];
1295 }
1296
1297 int semihosting_get_argc(void)
1298 {
1299 return semihosting.argc;
1300 }
1301
1302 const char *semihosting_get_cmdline(void)
1303 {
1304 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1305 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1306 }
1307 return semihosting.cmdline;
1308 }
1309
1310 static int add_semihosting_arg(void *opaque,
1311 const char *name, const char *val,
1312 Error **errp)
1313 {
1314 SemihostingConfig *s = opaque;
1315 if (strcmp(name, "arg") == 0) {
1316 s->argc++;
1317 /* one extra element as g_strjoinv() expects NULL-terminated array */
1318 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1319 s->argv[s->argc - 1] = val;
1320 s->argv[s->argc] = NULL;
1321 }
1322 return 0;
1323 }
1324
1325 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1326 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1327 {
1328 char *cmd_token;
1329
1330 /* argv[0] */
1331 add_semihosting_arg(&semihosting, "arg", file, NULL);
1332
1333 /* split -append and initialize argv[1..n] */
1334 cmd_token = strtok(g_strdup(cmd), " ");
1335 while (cmd_token) {
1336 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1337 cmd_token = strtok(NULL, " ");
1338 }
1339 }
1340
1341 /* Now we still need this for compatibility with XEN. */
1342 bool has_igd_gfx_passthru;
1343 static void igd_gfx_passthru(void)
1344 {
1345 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1346 }
1347
1348 /***********************************************************/
1349 /* USB devices */
1350
1351 static int usb_device_add(const char *devname)
1352 {
1353 USBDevice *dev = NULL;
1354
1355 if (!machine_usb(current_machine)) {
1356 return -1;
1357 }
1358
1359 dev = usbdevice_create(devname);
1360 if (!dev)
1361 return -1;
1362
1363 return 0;
1364 }
1365
1366 static int usb_parse(const char *cmdline)
1367 {
1368 int r;
1369 r = usb_device_add(cmdline);
1370 if (r < 0) {
1371 error_report("could not add USB device '%s'", cmdline);
1372 }
1373 return r;
1374 }
1375
1376 /***********************************************************/
1377 /* machine registration */
1378
1379 MachineState *current_machine;
1380
1381 static MachineClass *find_machine(const char *name)
1382 {
1383 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1384 MachineClass *mc = NULL;
1385
1386 for (el = machines; el; el = el->next) {
1387 MachineClass *temp = el->data;
1388
1389 if (!strcmp(temp->name, name)) {
1390 mc = temp;
1391 break;
1392 }
1393 if (temp->alias &&
1394 !strcmp(temp->alias, name)) {
1395 mc = temp;
1396 break;
1397 }
1398 }
1399
1400 g_slist_free(machines);
1401 return mc;
1402 }
1403
1404 MachineClass *find_default_machine(void)
1405 {
1406 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1407 MachineClass *mc = NULL;
1408
1409 for (el = machines; el; el = el->next) {
1410 MachineClass *temp = el->data;
1411
1412 if (temp->is_default) {
1413 mc = temp;
1414 break;
1415 }
1416 }
1417
1418 g_slist_free(machines);
1419 return mc;
1420 }
1421
1422 MachineInfoList *qmp_query_machines(Error **errp)
1423 {
1424 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1425 MachineInfoList *mach_list = NULL;
1426
1427 for (el = machines; el; el = el->next) {
1428 MachineClass *mc = el->data;
1429 MachineInfoList *entry;
1430 MachineInfo *info;
1431
1432 info = g_malloc0(sizeof(*info));
1433 if (mc->is_default) {
1434 info->has_is_default = true;
1435 info->is_default = true;
1436 }
1437
1438 if (mc->alias) {
1439 info->has_alias = true;
1440 info->alias = g_strdup(mc->alias);
1441 }
1442
1443 info->name = g_strdup(mc->name);
1444 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1445 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1446
1447 entry = g_malloc0(sizeof(*entry));
1448 entry->value = info;
1449 entry->next = mach_list;
1450 mach_list = entry;
1451 }
1452
1453 g_slist_free(machines);
1454 return mach_list;
1455 }
1456
1457 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1458 {
1459 ObjectProperty *prop;
1460 ObjectPropertyIterator iter;
1461
1462 if (!qemu_opt_has_help_opt(opts)) {
1463 return 0;
1464 }
1465
1466 object_property_iter_init(&iter, OBJECT(machine));
1467 while ((prop = object_property_iter_next(&iter))) {
1468 if (!prop->set) {
1469 continue;
1470 }
1471
1472 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1473 prop->name, prop->type);
1474 if (prop->description) {
1475 error_printf(" (%s)\n", prop->description);
1476 } else {
1477 error_printf("\n");
1478 }
1479 }
1480
1481 return 1;
1482 }
1483
1484 /***********************************************************/
1485 /* main execution loop */
1486
1487 struct vm_change_state_entry {
1488 VMChangeStateHandler *cb;
1489 void *opaque;
1490 QLIST_ENTRY (vm_change_state_entry) entries;
1491 };
1492
1493 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1494
1495 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1496 void *opaque)
1497 {
1498 VMChangeStateEntry *e;
1499
1500 e = g_malloc0(sizeof (*e));
1501
1502 e->cb = cb;
1503 e->opaque = opaque;
1504 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1505 return e;
1506 }
1507
1508 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1509 {
1510 QLIST_REMOVE (e, entries);
1511 g_free (e);
1512 }
1513
1514 void vm_state_notify(int running, RunState state)
1515 {
1516 VMChangeStateEntry *e, *next;
1517
1518 trace_vm_state_notify(running, state);
1519
1520 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1521 e->cb(e->opaque, running, state);
1522 }
1523 }
1524
1525 static ShutdownCause reset_requested;
1526 static ShutdownCause shutdown_requested;
1527 static int shutdown_signal;
1528 static pid_t shutdown_pid;
1529 static int powerdown_requested;
1530 static int debug_requested;
1531 static int suspend_requested;
1532 static bool preconfig_exit_requested = true;
1533 static WakeupReason wakeup_reason;
1534 static NotifierList powerdown_notifiers =
1535 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1536 static NotifierList suspend_notifiers =
1537 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1538 static NotifierList wakeup_notifiers =
1539 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1540 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1541
1542 ShutdownCause qemu_shutdown_requested_get(void)
1543 {
1544 return shutdown_requested;
1545 }
1546
1547 ShutdownCause qemu_reset_requested_get(void)
1548 {
1549 return reset_requested;
1550 }
1551
1552 static int qemu_shutdown_requested(void)
1553 {
1554 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1555 }
1556
1557 static void qemu_kill_report(void)
1558 {
1559 if (!qtest_driver() && shutdown_signal) {
1560 if (shutdown_pid == 0) {
1561 /* This happens for eg ^C at the terminal, so it's worth
1562 * avoiding printing an odd message in that case.
1563 */
1564 error_report("terminating on signal %d", shutdown_signal);
1565 } else {
1566 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1567
1568 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1569 shutdown_signal, shutdown_pid,
1570 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1571 g_free(shutdown_cmd);
1572 }
1573 shutdown_signal = 0;
1574 }
1575 }
1576
1577 static ShutdownCause qemu_reset_requested(void)
1578 {
1579 ShutdownCause r = reset_requested;
1580
1581 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1582 reset_requested = SHUTDOWN_CAUSE_NONE;
1583 return r;
1584 }
1585 return SHUTDOWN_CAUSE_NONE;
1586 }
1587
1588 static int qemu_suspend_requested(void)
1589 {
1590 int r = suspend_requested;
1591 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1592 suspend_requested = 0;
1593 return r;
1594 }
1595 return false;
1596 }
1597
1598 static WakeupReason qemu_wakeup_requested(void)
1599 {
1600 return wakeup_reason;
1601 }
1602
1603 static int qemu_powerdown_requested(void)
1604 {
1605 int r = powerdown_requested;
1606 powerdown_requested = 0;
1607 return r;
1608 }
1609
1610 static int qemu_debug_requested(void)
1611 {
1612 int r = debug_requested;
1613 debug_requested = 0;
1614 return r;
1615 }
1616
1617 void qemu_exit_preconfig_request(void)
1618 {
1619 preconfig_exit_requested = true;
1620 }
1621
1622 /*
1623 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1624 */
1625 void qemu_system_reset(ShutdownCause reason)
1626 {
1627 MachineClass *mc;
1628
1629 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1630
1631 cpu_synchronize_all_states();
1632
1633 if (mc && mc->reset) {
1634 mc->reset();
1635 } else {
1636 qemu_devices_reset();
1637 }
1638 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1639 qapi_event_send_reset(shutdown_caused_by_guest(reason));
1640 }
1641 cpu_synchronize_all_post_reset();
1642 }
1643
1644 void qemu_system_guest_panicked(GuestPanicInformation *info)
1645 {
1646 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1647
1648 if (current_cpu) {
1649 current_cpu->crash_occurred = true;
1650 }
1651 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1652 !!info, info);
1653 vm_stop(RUN_STATE_GUEST_PANICKED);
1654 if (!no_shutdown) {
1655 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1656 !!info, info);
1657 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1658 }
1659
1660 if (info) {
1661 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1662 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1663 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1664 info->u.hyper_v.arg1,
1665 info->u.hyper_v.arg2,
1666 info->u.hyper_v.arg3,
1667 info->u.hyper_v.arg4,
1668 info->u.hyper_v.arg5);
1669 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1670 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1671 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1672 info->u.s390.core,
1673 S390CrashReason_str(info->u.s390.reason),
1674 info->u.s390.psw_mask,
1675 info->u.s390.psw_addr);
1676 }
1677 qapi_free_GuestPanicInformation(info);
1678 }
1679 }
1680
1681 void qemu_system_reset_request(ShutdownCause reason)
1682 {
1683 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1684 shutdown_requested = reason;
1685 } else {
1686 reset_requested = reason;
1687 }
1688 cpu_stop_current();
1689 qemu_notify_event();
1690 }
1691
1692 static void qemu_system_suspend(void)
1693 {
1694 pause_all_vcpus();
1695 notifier_list_notify(&suspend_notifiers, NULL);
1696 runstate_set(RUN_STATE_SUSPENDED);
1697 qapi_event_send_suspend();
1698 }
1699
1700 void qemu_system_suspend_request(void)
1701 {
1702 if (runstate_check(RUN_STATE_SUSPENDED)) {
1703 return;
1704 }
1705 suspend_requested = 1;
1706 cpu_stop_current();
1707 qemu_notify_event();
1708 }
1709
1710 void qemu_register_suspend_notifier(Notifier *notifier)
1711 {
1712 notifier_list_add(&suspend_notifiers, notifier);
1713 }
1714
1715 void qemu_system_wakeup_request(WakeupReason reason)
1716 {
1717 trace_system_wakeup_request(reason);
1718
1719 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1720 return;
1721 }
1722 if (!(wakeup_reason_mask & (1 << reason))) {
1723 return;
1724 }
1725 runstate_set(RUN_STATE_RUNNING);
1726 wakeup_reason = reason;
1727 qemu_notify_event();
1728 }
1729
1730 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1731 {
1732 if (enabled) {
1733 wakeup_reason_mask |= (1 << reason);
1734 } else {
1735 wakeup_reason_mask &= ~(1 << reason);
1736 }
1737 }
1738
1739 void qemu_register_wakeup_notifier(Notifier *notifier)
1740 {
1741 notifier_list_add(&wakeup_notifiers, notifier);
1742 }
1743
1744 void qemu_system_killed(int signal, pid_t pid)
1745 {
1746 shutdown_signal = signal;
1747 shutdown_pid = pid;
1748 no_shutdown = 0;
1749
1750 /* Cannot call qemu_system_shutdown_request directly because
1751 * we are in a signal handler.
1752 */
1753 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1754 qemu_notify_event();
1755 }
1756
1757 void qemu_system_shutdown_request(ShutdownCause reason)
1758 {
1759 trace_qemu_system_shutdown_request(reason);
1760 replay_shutdown_request(reason);
1761 shutdown_requested = reason;
1762 qemu_notify_event();
1763 }
1764
1765 static void qemu_system_powerdown(void)
1766 {
1767 qapi_event_send_powerdown();
1768 notifier_list_notify(&powerdown_notifiers, NULL);
1769 }
1770
1771 void qemu_system_powerdown_request(void)
1772 {
1773 trace_qemu_system_powerdown_request();
1774 powerdown_requested = 1;
1775 qemu_notify_event();
1776 }
1777
1778 void qemu_register_powerdown_notifier(Notifier *notifier)
1779 {
1780 notifier_list_add(&powerdown_notifiers, notifier);
1781 }
1782
1783 void qemu_system_debug_request(void)
1784 {
1785 debug_requested = 1;
1786 qemu_notify_event();
1787 }
1788
1789 static bool main_loop_should_exit(void)
1790 {
1791 RunState r;
1792 ShutdownCause request;
1793
1794 if (preconfig_exit_requested) {
1795 if (runstate_check(RUN_STATE_PRECONFIG)) {
1796 runstate_set(RUN_STATE_PRELAUNCH);
1797 }
1798 preconfig_exit_requested = false;
1799 return true;
1800 }
1801 if (qemu_debug_requested()) {
1802 vm_stop(RUN_STATE_DEBUG);
1803 }
1804 if (qemu_suspend_requested()) {
1805 qemu_system_suspend();
1806 }
1807 request = qemu_shutdown_requested();
1808 if (request) {
1809 qemu_kill_report();
1810 qapi_event_send_shutdown(shutdown_caused_by_guest(request));
1811 if (no_shutdown) {
1812 vm_stop(RUN_STATE_SHUTDOWN);
1813 } else {
1814 return true;
1815 }
1816 }
1817 request = qemu_reset_requested();
1818 if (request) {
1819 pause_all_vcpus();
1820 qemu_system_reset(request);
1821 resume_all_vcpus();
1822 if (!runstate_check(RUN_STATE_RUNNING) &&
1823 !runstate_check(RUN_STATE_INMIGRATE)) {
1824 runstate_set(RUN_STATE_PRELAUNCH);
1825 }
1826 }
1827 if (qemu_wakeup_requested()) {
1828 pause_all_vcpus();
1829 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1830 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1831 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1832 resume_all_vcpus();
1833 qapi_event_send_wakeup();
1834 }
1835 if (qemu_powerdown_requested()) {
1836 qemu_system_powerdown();
1837 }
1838 if (qemu_vmstop_requested(&r)) {
1839 vm_stop(r);
1840 }
1841 return false;
1842 }
1843
1844 static void main_loop(void)
1845 {
1846 #ifdef CONFIG_PROFILER
1847 int64_t ti;
1848 #endif
1849 while (!main_loop_should_exit()) {
1850 #ifdef CONFIG_PROFILER
1851 ti = profile_getclock();
1852 #endif
1853 main_loop_wait(false);
1854 #ifdef CONFIG_PROFILER
1855 dev_time += profile_getclock() - ti;
1856 #endif
1857 }
1858 }
1859
1860 static void version(void)
1861 {
1862 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1863 QEMU_COPYRIGHT "\n");
1864 }
1865
1866 static void help(int exitcode)
1867 {
1868 version();
1869 printf("usage: %s [options] [disk_image]\n\n"
1870 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1871 error_get_progname());
1872
1873 #define QEMU_OPTIONS_GENERATE_HELP
1874 #include "qemu-options-wrapper.h"
1875
1876 printf("\nDuring emulation, the following keys are useful:\n"
1877 "ctrl-alt-f toggle full screen\n"
1878 "ctrl-alt-n switch to virtual console 'n'\n"
1879 "ctrl-alt toggle mouse and keyboard grab\n"
1880 "\n"
1881 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1882 "\n"
1883 QEMU_HELP_BOTTOM "\n");
1884
1885 exit(exitcode);
1886 }
1887
1888 #define HAS_ARG 0x0001
1889
1890 typedef struct QEMUOption {
1891 const char *name;
1892 int flags;
1893 int index;
1894 uint32_t arch_mask;
1895 } QEMUOption;
1896
1897 static const QEMUOption qemu_options[] = {
1898 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1899 #define QEMU_OPTIONS_GENERATE_OPTIONS
1900 #include "qemu-options-wrapper.h"
1901 { NULL },
1902 };
1903
1904 typedef struct VGAInterfaceInfo {
1905 const char *opt_name; /* option name */
1906 const char *name; /* human-readable name */
1907 /* Class names indicating that support is available.
1908 * If no class is specified, the interface is always available */
1909 const char *class_names[2];
1910 } VGAInterfaceInfo;
1911
1912 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1913 [VGA_NONE] = {
1914 .opt_name = "none",
1915 },
1916 [VGA_STD] = {
1917 .opt_name = "std",
1918 .name = "standard VGA",
1919 .class_names = { "VGA", "isa-vga" },
1920 },
1921 [VGA_CIRRUS] = {
1922 .opt_name = "cirrus",
1923 .name = "Cirrus VGA",
1924 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1925 },
1926 [VGA_VMWARE] = {
1927 .opt_name = "vmware",
1928 .name = "VMWare SVGA",
1929 .class_names = { "vmware-svga" },
1930 },
1931 [VGA_VIRTIO] = {
1932 .opt_name = "virtio",
1933 .name = "Virtio VGA",
1934 .class_names = { "virtio-vga" },
1935 },
1936 [VGA_QXL] = {
1937 .opt_name = "qxl",
1938 .name = "QXL VGA",
1939 .class_names = { "qxl-vga" },
1940 },
1941 [VGA_TCX] = {
1942 .opt_name = "tcx",
1943 .name = "TCX framebuffer",
1944 .class_names = { "SUNW,tcx" },
1945 },
1946 [VGA_CG3] = {
1947 .opt_name = "cg3",
1948 .name = "CG3 framebuffer",
1949 .class_names = { "cgthree" },
1950 },
1951 [VGA_XENFB] = {
1952 .opt_name = "xenfb",
1953 },
1954 };
1955
1956 static bool vga_interface_available(VGAInterfaceType t)
1957 {
1958 VGAInterfaceInfo *ti = &vga_interfaces[t];
1959
1960 assert(t < VGA_TYPE_MAX);
1961 return !ti->class_names[0] ||
1962 object_class_by_name(ti->class_names[0]) ||
1963 object_class_by_name(ti->class_names[1]);
1964 }
1965
1966 static void select_vgahw(const char *p)
1967 {
1968 const char *opts;
1969 int t;
1970
1971 assert(vga_interface_type == VGA_NONE);
1972 for (t = 0; t < VGA_TYPE_MAX; t++) {
1973 VGAInterfaceInfo *ti = &vga_interfaces[t];
1974 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1975 if (!vga_interface_available(t)) {
1976 error_report("%s not available", ti->name);
1977 exit(1);
1978 }
1979 vga_interface_type = t;
1980 break;
1981 }
1982 }
1983 if (t == VGA_TYPE_MAX) {
1984 invalid_vga:
1985 error_report("unknown vga type: %s", p);
1986 exit(1);
1987 }
1988 while (*opts) {
1989 const char *nextopt;
1990
1991 if (strstart(opts, ",retrace=", &nextopt)) {
1992 opts = nextopt;
1993 if (strstart(opts, "dumb", &nextopt))
1994 vga_retrace_method = VGA_RETRACE_DUMB;
1995 else if (strstart(opts, "precise", &nextopt))
1996 vga_retrace_method = VGA_RETRACE_PRECISE;
1997 else goto invalid_vga;
1998 } else goto invalid_vga;
1999 opts = nextopt;
2000 }
2001 }
2002
2003 static void parse_display_qapi(const char *optarg)
2004 {
2005 Error *err = NULL;
2006 DisplayOptions *opts;
2007 Visitor *v;
2008
2009 v = qobject_input_visitor_new_str(optarg, "type", &err);
2010 if (!v) {
2011 error_report_err(err);
2012 exit(1);
2013 }
2014
2015 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2016 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2017
2018 qapi_free_DisplayOptions(opts);
2019 visit_free(v);
2020 }
2021
2022 static void parse_display(const char *p)
2023 {
2024 const char *opts;
2025
2026 if (strstart(p, "sdl", &opts)) {
2027 /*
2028 * sdl DisplayType needs hand-crafted parser instead of
2029 * parse_display_qapi() due to some options not in
2030 * DisplayOptions, specifically:
2031 * - frame
2032 * Already deprecated.
2033 * - ctrl_grab + alt_grab
2034 * Not clear yet what happens to them long-term. Should
2035 * replaced by something better or deprecated and dropped.
2036 */
2037 dpy.type = DISPLAY_TYPE_SDL;
2038 while (*opts) {
2039 const char *nextopt;
2040
2041 if (strstart(opts, ",frame=", &nextopt)) {
2042 g_printerr("The frame= sdl option is deprecated, and will be\n"
2043 "removed in a future release.\n");
2044 opts = nextopt;
2045 if (strstart(opts, "on", &nextopt)) {
2046 no_frame = 0;
2047 } else if (strstart(opts, "off", &nextopt)) {
2048 no_frame = 1;
2049 } else {
2050 goto invalid_sdl_args;
2051 }
2052 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2053 opts = nextopt;
2054 if (strstart(opts, "on", &nextopt)) {
2055 alt_grab = 1;
2056 } else if (strstart(opts, "off", &nextopt)) {
2057 alt_grab = 0;
2058 } else {
2059 goto invalid_sdl_args;
2060 }
2061 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2062 opts = nextopt;
2063 if (strstart(opts, "on", &nextopt)) {
2064 ctrl_grab = 1;
2065 } else if (strstart(opts, "off", &nextopt)) {
2066 ctrl_grab = 0;
2067 } else {
2068 goto invalid_sdl_args;
2069 }
2070 } else if (strstart(opts, ",window_close=", &nextopt)) {
2071 opts = nextopt;
2072 dpy.has_window_close = true;
2073 if (strstart(opts, "on", &nextopt)) {
2074 dpy.window_close = true;
2075 } else if (strstart(opts, "off", &nextopt)) {
2076 dpy.window_close = false;
2077 } else {
2078 goto invalid_sdl_args;
2079 }
2080 } else if (strstart(opts, ",gl=", &nextopt)) {
2081 opts = nextopt;
2082 dpy.has_gl = true;
2083 if (strstart(opts, "on", &nextopt)) {
2084 dpy.gl = DISPLAYGL_MODE_ON;
2085 } else if (strstart(opts, "core", &nextopt)) {
2086 dpy.gl = DISPLAYGL_MODE_CORE;
2087 } else if (strstart(opts, "es", &nextopt)) {
2088 dpy.gl = DISPLAYGL_MODE_ES;
2089 } else if (strstart(opts, "off", &nextopt)) {
2090 dpy.gl = DISPLAYGL_MODE_OFF;
2091 } else {
2092 goto invalid_sdl_args;
2093 }
2094 } else {
2095 invalid_sdl_args:
2096 error_report("invalid SDL option string");
2097 exit(1);
2098 }
2099 opts = nextopt;
2100 }
2101 } else if (strstart(p, "vnc", &opts)) {
2102 /*
2103 * vnc isn't a (local) DisplayType but a protocol for remote
2104 * display access.
2105 */
2106 if (*opts == '=') {
2107 vnc_parse(opts + 1, &error_fatal);
2108 } else {
2109 error_report("VNC requires a display argument vnc=<display>");
2110 exit(1);
2111 }
2112 } else {
2113 parse_display_qapi(p);
2114 }
2115 }
2116
2117 char *qemu_find_file(int type, const char *name)
2118 {
2119 int i;
2120 const char *subdir;
2121 char *buf;
2122
2123 /* Try the name as a straight path first */
2124 if (access(name, R_OK) == 0) {
2125 trace_load_file(name, name);
2126 return g_strdup(name);
2127 }
2128
2129 switch (type) {
2130 case QEMU_FILE_TYPE_BIOS:
2131 subdir = "";
2132 break;
2133 case QEMU_FILE_TYPE_KEYMAP:
2134 subdir = "keymaps/";
2135 break;
2136 default:
2137 abort();
2138 }
2139
2140 for (i = 0; i < data_dir_idx; i++) {
2141 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2142 if (access(buf, R_OK) == 0) {
2143 trace_load_file(name, buf);
2144 return buf;
2145 }
2146 g_free(buf);
2147 }
2148 return NULL;
2149 }
2150
2151 static void qemu_add_data_dir(const char *path)
2152 {
2153 int i;
2154
2155 if (path == NULL) {
2156 return;
2157 }
2158 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2159 return;
2160 }
2161 for (i = 0; i < data_dir_idx; i++) {
2162 if (strcmp(data_dir[i], path) == 0) {
2163 return; /* duplicate */
2164 }
2165 }
2166 data_dir[data_dir_idx++] = g_strdup(path);
2167 }
2168
2169 static inline bool nonempty_str(const char *str)
2170 {
2171 return str && *str;
2172 }
2173
2174 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2175 {
2176 gchar *buf;
2177 size_t size;
2178 const char *name, *file, *str;
2179 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2180
2181 if (fw_cfg == NULL) {
2182 error_report("fw_cfg device not available");
2183 return -1;
2184 }
2185 name = qemu_opt_get(opts, "name");
2186 file = qemu_opt_get(opts, "file");
2187 str = qemu_opt_get(opts, "string");
2188
2189 /* we need name and either a file or the content string */
2190 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2191 error_report("invalid argument(s)");
2192 return -1;
2193 }
2194 if (nonempty_str(file) && nonempty_str(str)) {
2195 error_report("file and string are mutually exclusive");
2196 return -1;
2197 }
2198 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2199 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2200 return -1;
2201 }
2202 if (strncmp(name, "opt/", 4) != 0) {
2203 warn_report("externally provided fw_cfg item names "
2204 "should be prefixed with \"opt/\"");
2205 }
2206 if (nonempty_str(str)) {
2207 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2208 buf = g_memdup(str, size);
2209 } else {
2210 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2211 error_report("can't load %s", file);
2212 return -1;
2213 }
2214 }
2215 /* For legacy, keep user files in a specific global order. */
2216 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2217 fw_cfg_add_file(fw_cfg, name, buf, size);
2218 fw_cfg_reset_order_override(fw_cfg);
2219 return 0;
2220 }
2221
2222 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2223 {
2224 return qdev_device_help(opts);
2225 }
2226
2227 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2228 {
2229 Error *err = NULL;
2230 DeviceState *dev;
2231
2232 dev = qdev_device_add(opts, &err);
2233 if (!dev) {
2234 error_report_err(err);
2235 return -1;
2236 }
2237 object_unref(OBJECT(dev));
2238 return 0;
2239 }
2240
2241 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2242 {
2243 Error *local_err = NULL;
2244
2245 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2246 if (local_err) {
2247 error_report_err(local_err);
2248 return -1;
2249 }
2250 exit(0);
2251 }
2252 return 0;
2253 }
2254
2255 #ifdef CONFIG_VIRTFS
2256 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2257 {
2258 return qemu_fsdev_add(opts);
2259 }
2260 #endif
2261
2262 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2263 {
2264 Chardev *chr;
2265 const char *chardev;
2266 const char *mode;
2267 int flags;
2268
2269 mode = qemu_opt_get(opts, "mode");
2270 if (mode == NULL) {
2271 mode = "readline";
2272 }
2273 if (strcmp(mode, "readline") == 0) {
2274 flags = MONITOR_USE_READLINE;
2275 } else if (strcmp(mode, "control") == 0) {
2276 flags = MONITOR_USE_CONTROL;
2277 } else {
2278 error_report("unknown monitor mode \"%s\"", mode);
2279 exit(1);
2280 }
2281
2282 if (qemu_opt_get_bool(opts, "pretty", 0))
2283 flags |= MONITOR_USE_PRETTY;
2284
2285 /* OOB is off by default */
2286 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2287 flags |= MONITOR_USE_OOB;
2288 }
2289
2290 chardev = qemu_opt_get(opts, "chardev");
2291 chr = qemu_chr_find(chardev);
2292 if (chr == NULL) {
2293 error_report("chardev \"%s\" not found", chardev);
2294 exit(1);
2295 }
2296
2297 monitor_init(chr, flags);
2298 return 0;
2299 }
2300
2301 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2302 {
2303 static int monitor_device_index = 0;
2304 QemuOpts *opts;
2305 const char *p;
2306 char label[32];
2307
2308 if (strstart(optarg, "chardev:", &p)) {
2309 snprintf(label, sizeof(label), "%s", p);
2310 } else {
2311 snprintf(label, sizeof(label), "compat_monitor%d",
2312 monitor_device_index);
2313 opts = qemu_chr_parse_compat(label, optarg);
2314 if (!opts) {
2315 error_report("parse error: %s", optarg);
2316 exit(1);
2317 }
2318 }
2319
2320 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2321 qemu_opt_set(opts, "mode", mode, &error_abort);
2322 qemu_opt_set(opts, "chardev", label, &error_abort);
2323 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2324 monitor_device_index++;
2325 }
2326
2327 struct device_config {
2328 enum {
2329 DEV_USB, /* -usbdevice */
2330 DEV_BT, /* -bt */
2331 DEV_SERIAL, /* -serial */
2332 DEV_PARALLEL, /* -parallel */
2333 DEV_VIRTCON, /* -virtioconsole */
2334 DEV_DEBUGCON, /* -debugcon */
2335 DEV_GDB, /* -gdb, -s */
2336 DEV_SCLP, /* s390 sclp */
2337 } type;
2338 const char *cmdline;
2339 Location loc;
2340 QTAILQ_ENTRY(device_config) next;
2341 };
2342
2343 static QTAILQ_HEAD(, device_config) device_configs =
2344 QTAILQ_HEAD_INITIALIZER(device_configs);
2345
2346 static void add_device_config(int type, const char *cmdline)
2347 {
2348 struct device_config *conf;
2349
2350 conf = g_malloc0(sizeof(*conf));
2351 conf->type = type;
2352 conf->cmdline = cmdline;
2353 loc_save(&conf->loc);
2354 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2355 }
2356
2357 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2358 {
2359 struct device_config *conf;
2360 int rc;
2361
2362 QTAILQ_FOREACH(conf, &device_configs, next) {
2363 if (conf->type != type)
2364 continue;
2365 loc_push_restore(&conf->loc);
2366 rc = func(conf->cmdline);
2367 loc_pop(&conf->loc);
2368 if (rc) {
2369 return rc;
2370 }
2371 }
2372 return 0;
2373 }
2374
2375 static int serial_parse(const char *devname)
2376 {
2377 int index = num_serial_hds;
2378 char label[32];
2379
2380 if (strcmp(devname, "none") == 0)
2381 return 0;
2382 snprintf(label, sizeof(label), "serial%d", index);
2383 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2384
2385 serial_hds[index] = qemu_chr_new(label, devname);
2386 if (!serial_hds[index]) {
2387 error_report("could not connect serial device"
2388 " to character backend '%s'", devname);
2389 return -1;
2390 }
2391 num_serial_hds++;
2392 return 0;
2393 }
2394
2395 Chardev *serial_hd(int i)
2396 {
2397 assert(i >= 0);
2398 if (i < num_serial_hds) {
2399 return serial_hds[i];
2400 }
2401 return NULL;
2402 }
2403
2404 int serial_max_hds(void)
2405 {
2406 return num_serial_hds;
2407 }
2408
2409 static int parallel_parse(const char *devname)
2410 {
2411 static int index = 0;
2412 char label[32];
2413
2414 if (strcmp(devname, "none") == 0)
2415 return 0;
2416 if (index == MAX_PARALLEL_PORTS) {
2417 error_report("too many parallel ports");
2418 exit(1);
2419 }
2420 snprintf(label, sizeof(label), "parallel%d", index);
2421 parallel_hds[index] = qemu_chr_new(label, devname);
2422 if (!parallel_hds[index]) {
2423 error_report("could not connect parallel device"
2424 " to character backend '%s'", devname);
2425 return -1;
2426 }
2427 index++;
2428 return 0;
2429 }
2430
2431 static int virtcon_parse(const char *devname)
2432 {
2433 QemuOptsList *device = qemu_find_opts("device");
2434 static int index = 0;
2435 char label[32];
2436 QemuOpts *bus_opts, *dev_opts;
2437
2438 if (strcmp(devname, "none") == 0)
2439 return 0;
2440 if (index == MAX_VIRTIO_CONSOLES) {
2441 error_report("too many virtio consoles");
2442 exit(1);
2443 }
2444
2445 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2446 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2447
2448 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2449 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2450
2451 snprintf(label, sizeof(label), "virtcon%d", index);
2452 virtcon_hds[index] = qemu_chr_new(label, devname);
2453 if (!virtcon_hds[index]) {
2454 error_report("could not connect virtio console"
2455 " to character backend '%s'", devname);
2456 return -1;
2457 }
2458 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2459
2460 index++;
2461 return 0;
2462 }
2463
2464 static int debugcon_parse(const char *devname)
2465 {
2466 QemuOpts *opts;
2467
2468 if (!qemu_chr_new("debugcon", devname)) {
2469 exit(1);
2470 }
2471 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2472 if (!opts) {
2473 error_report("already have a debugcon device");
2474 exit(1);
2475 }
2476 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2477 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2478 return 0;
2479 }
2480
2481 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2482 {
2483 const MachineClass *mc1 = a, *mc2 = b;
2484 int res;
2485
2486 if (mc1->family == NULL) {
2487 if (mc2->family == NULL) {
2488 /* Compare standalone machine types against each other; they sort
2489 * in increasing order.
2490 */
2491 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2492 object_class_get_name(OBJECT_CLASS(mc2)));
2493 }
2494
2495 /* Standalone machine types sort after families. */
2496 return 1;
2497 }
2498
2499 if (mc2->family == NULL) {
2500 /* Families sort before standalone machine types. */
2501 return -1;
2502 }
2503
2504 /* Families sort between each other alphabetically increasingly. */
2505 res = strcmp(mc1->family, mc2->family);
2506 if (res != 0) {
2507 return res;
2508 }
2509
2510 /* Within the same family, machine types sort in decreasing order. */
2511 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2512 object_class_get_name(OBJECT_CLASS(mc1)));
2513 }
2514
2515 static MachineClass *machine_parse(const char *name)
2516 {
2517 MachineClass *mc = NULL;
2518 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2519
2520 if (name) {
2521 mc = find_machine(name);
2522 }
2523 if (mc) {
2524 g_slist_free(machines);
2525 return mc;
2526 }
2527 if (name && !is_help_option(name)) {
2528 error_report("unsupported machine type");
2529 error_printf("Use -machine help to list supported machines\n");
2530 } else {
2531 printf("Supported machines are:\n");
2532 machines = g_slist_sort(machines, machine_class_cmp);
2533 for (el = machines; el; el = el->next) {
2534 MachineClass *mc = el->data;
2535 if (mc->alias) {
2536 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2537 }
2538 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2539 mc->is_default ? " (default)" : "",
2540 mc->deprecation_reason ? " (deprecated)" : "");
2541 }
2542 }
2543
2544 g_slist_free(machines);
2545 exit(!name || !is_help_option(name));
2546 }
2547
2548 void qemu_add_exit_notifier(Notifier *notify)
2549 {
2550 notifier_list_add(&exit_notifiers, notify);
2551 }
2552
2553 void qemu_remove_exit_notifier(Notifier *notify)
2554 {
2555 notifier_remove(notify);
2556 }
2557
2558 static void qemu_run_exit_notifiers(void)
2559 {
2560 notifier_list_notify(&exit_notifiers, NULL);
2561 }
2562
2563 bool machine_init_done;
2564
2565 void qemu_add_machine_init_done_notifier(Notifier *notify)
2566 {
2567 notifier_list_add(&machine_init_done_notifiers, notify);
2568 if (machine_init_done) {
2569 notify->notify(notify, NULL);
2570 }
2571 }
2572
2573 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2574 {
2575 notifier_remove(notify);
2576 }
2577
2578 static void qemu_run_machine_init_done_notifiers(void)
2579 {
2580 machine_init_done = true;
2581 notifier_list_notify(&machine_init_done_notifiers, NULL);
2582 }
2583
2584 static const QEMUOption *lookup_opt(int argc, char **argv,
2585 const char **poptarg, int *poptind)
2586 {
2587 const QEMUOption *popt;
2588 int optind = *poptind;
2589 char *r = argv[optind];
2590 const char *optarg;
2591
2592 loc_set_cmdline(argv, optind, 1);
2593 optind++;
2594 /* Treat --foo the same as -foo. */
2595 if (r[1] == '-')
2596 r++;
2597 popt = qemu_options;
2598 for(;;) {
2599 if (!popt->name) {
2600 error_report("invalid option");
2601 exit(1);
2602 }
2603 if (!strcmp(popt->name, r + 1))
2604 break;
2605 popt++;
2606 }
2607 if (popt->flags & HAS_ARG) {
2608 if (optind >= argc) {
2609 error_report("requires an argument");
2610 exit(1);
2611 }
2612 optarg = argv[optind++];
2613 loc_set_cmdline(argv, optind - 2, 2);
2614 } else {
2615 optarg = NULL;
2616 }
2617
2618 *poptarg = optarg;
2619 *poptind = optind;
2620
2621 return popt;
2622 }
2623
2624 static MachineClass *select_machine(void)
2625 {
2626 MachineClass *machine_class = find_default_machine();
2627 const char *optarg;
2628 QemuOpts *opts;
2629 Location loc;
2630
2631 loc_push_none(&loc);
2632
2633 opts = qemu_get_machine_opts();
2634 qemu_opts_loc_restore(opts);
2635
2636 optarg = qemu_opt_get(opts, "type");
2637 if (optarg) {
2638 machine_class = machine_parse(optarg);
2639 }
2640
2641 if (!machine_class) {
2642 error_report("No machine specified, and there is no default");
2643 error_printf("Use -machine help to list supported machines\n");
2644 exit(1);
2645 }
2646
2647 loc_pop(&loc);
2648 return machine_class;
2649 }
2650
2651 static int machine_set_property(void *opaque,
2652 const char *name, const char *value,
2653 Error **errp)
2654 {
2655 Object *obj = OBJECT(opaque);
2656 Error *local_err = NULL;
2657 char *p, *qom_name;
2658
2659 if (strcmp(name, "type") == 0) {
2660 return 0;
2661 }
2662
2663 qom_name = g_strdup(name);
2664 for (p = qom_name; *p; p++) {
2665 if (*p == '_') {
2666 *p = '-';
2667 }
2668 }
2669
2670 object_property_parse(obj, value, qom_name, &local_err);
2671 g_free(qom_name);
2672
2673 if (local_err) {
2674 error_report_err(local_err);
2675 return -1;
2676 }
2677
2678 return 0;
2679 }
2680
2681
2682 /*
2683 * Initial object creation happens before all other
2684 * QEMU data types are created. The majority of objects
2685 * can be created at this point. The rng-egd object
2686 * cannot be created here, as it depends on the chardev
2687 * already existing.
2688 */
2689 static bool object_create_initial(const char *type)
2690 {
2691 if (g_str_equal(type, "rng-egd") ||
2692 g_str_has_prefix(type, "pr-manager-")) {
2693 return false;
2694 }
2695
2696 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2697 if (g_str_equal(type, "cryptodev-vhost-user")) {
2698 return false;
2699 }
2700 #endif
2701
2702 /*
2703 * return false for concrete netfilters since
2704 * they depend on netdevs already existing
2705 */
2706 if (g_str_equal(type, "filter-buffer") ||
2707 g_str_equal(type, "filter-dump") ||
2708 g_str_equal(type, "filter-mirror") ||
2709 g_str_equal(type, "filter-redirector") ||
2710 g_str_equal(type, "colo-compare") ||
2711 g_str_equal(type, "filter-rewriter") ||
2712 g_str_equal(type, "filter-replay")) {
2713 return false;
2714 }
2715
2716 /* Memory allocation by backends needs to be done
2717 * after configure_accelerator() (due to the tcg_enabled()
2718 * checks at memory_region_init_*()).
2719 *
2720 * Also, allocation of large amounts of memory may delay
2721 * chardev initialization for too long, and trigger timeouts
2722 * on software that waits for a monitor socket to be created
2723 * (e.g. libvirt).
2724 */
2725 if (g_str_has_prefix(type, "memory-backend-")) {
2726 return false;
2727 }
2728
2729 return true;
2730 }
2731
2732
2733 /*
2734 * The remainder of object creation happens after the
2735 * creation of chardev, fsdev, net clients and device data types.
2736 */
2737 static bool object_create_delayed(const char *type)
2738 {
2739 return !object_create_initial(type);
2740 }
2741
2742
2743 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2744 MachineClass *mc)
2745 {
2746 uint64_t sz;
2747 const char *mem_str;
2748 const ram_addr_t default_ram_size = mc->default_ram_size;
2749 QemuOpts *opts = qemu_find_opts_singleton("memory");
2750 Location loc;
2751
2752 loc_push_none(&loc);
2753 qemu_opts_loc_restore(opts);
2754
2755 sz = 0;
2756 mem_str = qemu_opt_get(opts, "size");
2757 if (mem_str) {
2758 if (!*mem_str) {
2759 error_report("missing 'size' option value");
2760 exit(EXIT_FAILURE);
2761 }
2762
2763 sz = qemu_opt_get_size(opts, "size", ram_size);
2764
2765 /* Fix up legacy suffix-less format */
2766 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2767 uint64_t overflow_check = sz;
2768
2769 sz *= MiB;
2770 if (sz / MiB != overflow_check) {
2771 error_report("too large 'size' option value");
2772 exit(EXIT_FAILURE);
2773 }
2774 }
2775 }
2776
2777 /* backward compatibility behaviour for case "-m 0" */
2778 if (sz == 0) {
2779 sz = default_ram_size;
2780 }
2781
2782 sz = QEMU_ALIGN_UP(sz, 8192);
2783 ram_size = sz;
2784 if (ram_size != sz) {
2785 error_report("ram size too large");
2786 exit(EXIT_FAILURE);
2787 }
2788
2789 /* store value for the future use */
2790 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2791 *maxram_size = ram_size;
2792
2793 if (qemu_opt_get(opts, "maxmem")) {
2794 uint64_t slots;
2795
2796 sz = qemu_opt_get_size(opts, "maxmem", 0);
2797 slots = qemu_opt_get_number(opts, "slots", 0);
2798 if (sz < ram_size) {
2799 error_report("invalid value of -m option maxmem: "
2800 "maximum memory size (0x%" PRIx64 ") must be at least "
2801 "the initial memory size (0x" RAM_ADDR_FMT ")",
2802 sz, ram_size);
2803 exit(EXIT_FAILURE);
2804 } else if (slots && sz == ram_size) {
2805 error_report("invalid value of -m option maxmem: "
2806 "memory slots were specified but maximum memory size "
2807 "(0x%" PRIx64 ") is equal to the initial memory size "
2808 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2809 exit(EXIT_FAILURE);
2810 }
2811
2812 *maxram_size = sz;
2813 *ram_slots = slots;
2814 } else if (qemu_opt_get(opts, "slots")) {
2815 error_report("invalid -m option value: missing 'maxmem' option");
2816 exit(EXIT_FAILURE);
2817 }
2818
2819 loc_pop(&loc);
2820 }
2821
2822 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2823 {
2824 GlobalProperty *g;
2825
2826 g = g_malloc0(sizeof(*g));
2827 g->driver = qemu_opt_get(opts, "driver");
2828 g->property = qemu_opt_get(opts, "property");
2829 g->value = qemu_opt_get(opts, "value");
2830 g->user_provided = true;
2831 g->errp = &error_fatal;
2832 qdev_prop_register_global(g);
2833 return 0;
2834 }
2835
2836 static int qemu_read_default_config_file(void)
2837 {
2838 int ret;
2839
2840 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2841 if (ret < 0 && ret != -ENOENT) {
2842 return ret;
2843 }
2844
2845 return 0;
2846 }
2847
2848 static void user_register_global_props(void)
2849 {
2850 qemu_opts_foreach(qemu_find_opts("global"),
2851 global_init_func, NULL, NULL);
2852 }
2853
2854 /*
2855 * Note: we should see that these properties are actually having a
2856 * priority: accel < machine < user. This means e.g. when user
2857 * specifies something in "-global", it'll always be used with highest
2858 * priority than either machine/accelerator compat properties.
2859 */
2860 static void register_global_properties(MachineState *ms)
2861 {
2862 accel_register_compat_props(ms->accelerator);
2863 machine_register_compat_props(ms);
2864 user_register_global_props();
2865 }
2866
2867 int main(int argc, char **argv, char **envp)
2868 {
2869 int i;
2870 int snapshot, linux_boot;
2871 const char *initrd_filename;
2872 const char *kernel_filename, *kernel_cmdline;
2873 const char *boot_order = NULL;
2874 const char *boot_once = NULL;
2875 DisplayState *ds;
2876 QemuOpts *opts, *machine_opts;
2877 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2878 QemuOptsList *olist;
2879 int optind;
2880 const char *optarg;
2881 const char *loadvm = NULL;
2882 MachineClass *machine_class;
2883 const char *cpu_model;
2884 const char *vga_model = NULL;
2885 const char *qtest_chrdev = NULL;
2886 const char *qtest_log = NULL;
2887 const char *pid_file = NULL;
2888 const char *incoming = NULL;
2889 bool userconfig = true;
2890 bool nographic = false;
2891 int display_remote = 0;
2892 const char *log_mask = NULL;
2893 const char *log_file = NULL;
2894 char *trace_file = NULL;
2895 ram_addr_t maxram_size;
2896 uint64_t ram_slots = 0;
2897 FILE *vmstate_dump_file = NULL;
2898 Error *main_loop_err = NULL;
2899 Error *err = NULL;
2900 bool list_data_dirs = false;
2901 char *dir, **dirs;
2902 typedef struct BlockdevOptions_queue {
2903 BlockdevOptions *bdo;
2904 Location loc;
2905 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
2906 } BlockdevOptions_queue;
2907 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
2908 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2909
2910 module_call_init(MODULE_INIT_TRACE);
2911
2912 qemu_init_cpu_list();
2913 qemu_init_cpu_loop();
2914
2915 qemu_mutex_lock_iothread();
2916
2917 atexit(qemu_run_exit_notifiers);
2918 error_set_progname(argv[0]);
2919 qemu_init_exec_dir(argv[0]);
2920
2921 module_call_init(MODULE_INIT_QOM);
2922
2923 qemu_add_opts(&qemu_drive_opts);
2924 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2925 qemu_add_drive_opts(&qemu_common_drive_opts);
2926 qemu_add_drive_opts(&qemu_drive_opts);
2927 qemu_add_drive_opts(&bdrv_runtime_opts);
2928 qemu_add_opts(&qemu_chardev_opts);
2929 qemu_add_opts(&qemu_device_opts);
2930 qemu_add_opts(&qemu_netdev_opts);
2931 qemu_add_opts(&qemu_nic_opts);
2932 qemu_add_opts(&qemu_net_opts);
2933 qemu_add_opts(&qemu_rtc_opts);
2934 qemu_add_opts(&qemu_global_opts);
2935 qemu_add_opts(&qemu_mon_opts);
2936 qemu_add_opts(&qemu_trace_opts);
2937 qemu_add_opts(&qemu_option_rom_opts);
2938 qemu_add_opts(&qemu_machine_opts);
2939 qemu_add_opts(&qemu_accel_opts);
2940 qemu_add_opts(&qemu_mem_opts);
2941 qemu_add_opts(&qemu_smp_opts);
2942 qemu_add_opts(&qemu_boot_opts);
2943 qemu_add_opts(&qemu_add_fd_opts);
2944 qemu_add_opts(&qemu_object_opts);
2945 qemu_add_opts(&qemu_tpmdev_opts);
2946 qemu_add_opts(&qemu_realtime_opts);
2947 qemu_add_opts(&qemu_overcommit_opts);
2948 qemu_add_opts(&qemu_msg_opts);
2949 qemu_add_opts(&qemu_name_opts);
2950 qemu_add_opts(&qemu_numa_opts);
2951 qemu_add_opts(&qemu_icount_opts);
2952 qemu_add_opts(&qemu_semihosting_config_opts);
2953 qemu_add_opts(&qemu_fw_cfg_opts);
2954 module_call_init(MODULE_INIT_OPTS);
2955
2956 runstate_init();
2957 postcopy_infrastructure_init();
2958 monitor_init_globals();
2959
2960 if (qcrypto_init(&err) < 0) {
2961 error_reportf_err(err, "cannot initialize crypto: ");
2962 exit(1);
2963 }
2964 rtc_clock = QEMU_CLOCK_HOST;
2965
2966 QLIST_INIT (&vm_change_state_head);
2967 os_setup_early_signal_handling();
2968
2969 cpu_model = NULL;
2970 snapshot = 0;
2971
2972 nb_nics = 0;
2973
2974 bdrv_init_with_whitelist();
2975
2976 autostart = 1;
2977
2978 /* first pass of option parsing */
2979 optind = 1;
2980 while (optind < argc) {
2981 if (argv[optind][0] != '-') {
2982 /* disk image */
2983 optind++;
2984 } else {
2985 const QEMUOption *popt;
2986
2987 popt = lookup_opt(argc, argv, &optarg, &optind);
2988 switch (popt->index) {
2989 case QEMU_OPTION_nouserconfig:
2990 userconfig = false;
2991 break;
2992 }
2993 }
2994 }
2995
2996 if (userconfig) {
2997 if (qemu_read_default_config_file() < 0) {
2998 exit(1);
2999 }
3000 }
3001
3002 /* second pass of option parsing */
3003 optind = 1;
3004 for(;;) {
3005 if (optind >= argc)
3006 break;
3007 if (argv[optind][0] != '-') {
3008 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3009 } else {
3010 const QEMUOption *popt;
3011
3012 popt = lookup_opt(argc, argv, &optarg, &optind);
3013 if (!(popt->arch_mask & arch_type)) {
3014 error_report("Option not supported for this target");
3015 exit(1);
3016 }
3017 switch(popt->index) {
3018 case QEMU_OPTION_cpu:
3019 /* hw initialization will check this */
3020 cpu_model = optarg;
3021 break;
3022 case QEMU_OPTION_hda:
3023 case QEMU_OPTION_hdb:
3024 case QEMU_OPTION_hdc:
3025 case QEMU_OPTION_hdd:
3026 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3027 HD_OPTS);
3028 break;
3029 case QEMU_OPTION_blockdev:
3030 {
3031 Visitor *v;
3032 BlockdevOptions_queue *bdo;
3033
3034 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3035 if (!v) {
3036 error_report_err(err);
3037 exit(1);
3038 }
3039
3040 bdo = g_new(BlockdevOptions_queue, 1);
3041 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3042 &error_fatal);
3043 visit_free(v);
3044 loc_save(&bdo->loc);
3045 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3046 break;
3047 }
3048 case QEMU_OPTION_drive:
3049 if (drive_def(optarg) == NULL) {
3050 exit(1);
3051 }
3052 break;
3053 case QEMU_OPTION_set:
3054 if (qemu_set_option(optarg) != 0)
3055 exit(1);
3056 break;
3057 case QEMU_OPTION_global:
3058 if (qemu_global_option(optarg) != 0)
3059 exit(1);
3060 break;
3061 case QEMU_OPTION_mtdblock:
3062 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3063 break;
3064 case QEMU_OPTION_sd:
3065 drive_add(IF_SD, -1, optarg, SD_OPTS);
3066 break;
3067 case QEMU_OPTION_pflash:
3068 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3069 break;
3070 case QEMU_OPTION_snapshot:
3071 snapshot = 1;
3072 break;
3073 case QEMU_OPTION_numa:
3074 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3075 optarg, true);
3076 if (!opts) {
3077 exit(1);
3078 }
3079 break;
3080 case QEMU_OPTION_display:
3081 parse_display(optarg);
3082 break;
3083 case QEMU_OPTION_nographic:
3084 olist = qemu_find_opts("machine");
3085 qemu_opts_parse_noisily(olist, "graphics=off", false);
3086 nographic = true;
3087 dpy.type = DISPLAY_TYPE_NONE;
3088 break;
3089 case QEMU_OPTION_curses:
3090 #ifdef CONFIG_CURSES
3091 dpy.type = DISPLAY_TYPE_CURSES;
3092 #else
3093 error_report("curses support is disabled");
3094 exit(1);
3095 #endif
3096 break;
3097 case QEMU_OPTION_portrait:
3098 graphic_rotate = 90;
3099 break;
3100 case QEMU_OPTION_rotate:
3101 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3102 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3103 graphic_rotate != 180 && graphic_rotate != 270) {
3104 error_report("only 90, 180, 270 deg rotation is available");
3105 exit(1);
3106 }
3107 break;
3108 case QEMU_OPTION_kernel:
3109 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3110 &error_abort);
3111 break;
3112 case QEMU_OPTION_initrd:
3113 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3114 &error_abort);
3115 break;
3116 case QEMU_OPTION_append:
3117 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3118 &error_abort);
3119 break;
3120 case QEMU_OPTION_dtb:
3121 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3122 &error_abort);
3123 break;
3124 case QEMU_OPTION_cdrom:
3125 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3126 break;
3127 case QEMU_OPTION_boot:
3128 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3129 optarg, true);
3130 if (!opts) {
3131 exit(1);
3132 }
3133 break;
3134 case QEMU_OPTION_fda:
3135 case QEMU_OPTION_fdb:
3136 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3137 optarg, FD_OPTS);
3138 break;
3139 case QEMU_OPTION_no_fd_bootchk:
3140 fd_bootchk = 0;
3141 break;
3142 case QEMU_OPTION_netdev:
3143 default_net = 0;
3144 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3145 exit(1);
3146 }
3147 break;
3148 case QEMU_OPTION_nic:
3149 default_net = 0;
3150 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3151 exit(1);
3152 }
3153 break;
3154 case QEMU_OPTION_net:
3155 default_net = 0;
3156 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3157 exit(1);
3158 }
3159 break;
3160 #ifdef CONFIG_LIBISCSI
3161 case QEMU_OPTION_iscsi:
3162 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3163 optarg, false);
3164 if (!opts) {
3165 exit(1);
3166 }
3167 break;
3168 #endif
3169 case QEMU_OPTION_bt:
3170 add_device_config(DEV_BT, optarg);
3171 break;
3172 case QEMU_OPTION_audio_help:
3173 AUD_help ();
3174 exit (0);
3175 break;
3176 case QEMU_OPTION_soundhw:
3177 select_soundhw (optarg);
3178 break;
3179 case QEMU_OPTION_h:
3180 help(0);
3181 break;
3182 case QEMU_OPTION_version:
3183 version();
3184 exit(0);
3185 break;
3186 case QEMU_OPTION_m:
3187 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3188 optarg, true);
3189 if (!opts) {
3190 exit(EXIT_FAILURE);
3191 }
3192 break;
3193 #ifdef CONFIG_TPM
3194 case QEMU_OPTION_tpmdev:
3195 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3196 exit(1);
3197 }
3198 break;
3199 #endif
3200 case QEMU_OPTION_mempath:
3201 mem_path = optarg;
3202 break;
3203 case QEMU_OPTION_mem_prealloc:
3204 mem_prealloc = 1;
3205 break;
3206 case QEMU_OPTION_d:
3207 log_mask = optarg;
3208 break;
3209 case QEMU_OPTION_D:
3210 log_file = optarg;
3211 break;
3212 case QEMU_OPTION_DFILTER:
3213 qemu_set_dfilter_ranges(optarg, &error_fatal);
3214 break;
3215 case QEMU_OPTION_s:
3216 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3217 break;
3218 case QEMU_OPTION_gdb:
3219 add_device_config(DEV_GDB, optarg);
3220 break;
3221 case QEMU_OPTION_L:
3222 if (is_help_option(optarg)) {
3223 list_data_dirs = true;
3224 } else {
3225 qemu_add_data_dir(optarg);
3226 }
3227 break;
3228 case QEMU_OPTION_bios:
3229 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3230 &error_abort);
3231 break;
3232 case QEMU_OPTION_singlestep:
3233 singlestep = 1;
3234 break;
3235 case QEMU_OPTION_S:
3236 autostart = 0;
3237 break;
3238 case QEMU_OPTION_k:
3239 keyboard_layout = optarg;
3240 break;
3241 case QEMU_OPTION_vga:
3242 vga_model = optarg;
3243 default_vga = 0;
3244 break;
3245 case QEMU_OPTION_g:
3246 {
3247 const char *p;
3248 int w, h, depth;
3249 p = optarg;
3250 w = strtol(p, (char **)&p, 10);
3251 if (w <= 0) {
3252 graphic_error:
3253 error_report("invalid resolution or depth");
3254 exit(1);
3255 }
3256 if (*p != 'x')
3257 goto graphic_error;
3258 p++;
3259 h = strtol(p, (char **)&p, 10);
3260 if (h <= 0)
3261 goto graphic_error;
3262 if (*p == 'x') {
3263 p++;
3264 depth = strtol(p, (char **)&p, 10);
3265 if (depth != 8 && depth != 15 && depth != 16 &&
3266 depth != 24 && depth != 32)
3267 goto graphic_error;
3268 } else if (*p == '\0') {
3269 depth = graphic_depth;
3270 } else {
3271 goto graphic_error;
3272 }
3273
3274 graphic_width = w;
3275 graphic_height = h;
3276 graphic_depth = depth;
3277 }
3278 break;
3279 case QEMU_OPTION_echr:
3280 {
3281 char *r;
3282 term_escape_char = strtol(optarg, &r, 0);
3283 if (r == optarg)
3284 printf("Bad argument to echr\n");
3285 break;
3286 }
3287 case QEMU_OPTION_monitor:
3288 default_monitor = 0;
3289 if (strncmp(optarg, "none", 4)) {
3290 monitor_parse(optarg, "readline", false);
3291 }
3292 break;
3293 case QEMU_OPTION_qmp:
3294 monitor_parse(optarg, "control", false);
3295 default_monitor = 0;
3296 break;
3297 case QEMU_OPTION_qmp_pretty:
3298 monitor_parse(optarg, "control", true);
3299 default_monitor = 0;
3300 break;
3301 case QEMU_OPTION_mon:
3302 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3303 true);
3304 if (!opts) {
3305 exit(1);
3306 }
3307 default_monitor = 0;
3308 break;
3309 case QEMU_OPTION_chardev:
3310 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3311 optarg, true);
3312 if (!opts) {
3313 exit(1);
3314 }
3315 break;
3316 case QEMU_OPTION_fsdev:
3317 olist = qemu_find_opts("fsdev");
3318 if (!olist) {
3319 error_report("fsdev support is disabled");
3320 exit(1);
3321 }
3322 opts = qemu_opts_parse_noisily(olist, optarg, true);
3323 if (!opts) {
3324 exit(1);
3325 }
3326 break;
3327 case QEMU_OPTION_virtfs: {
3328 QemuOpts *fsdev;
3329 QemuOpts *device;
3330 const char *writeout, *sock_fd, *socket, *path, *security_model;
3331
3332 olist = qemu_find_opts("virtfs");
3333 if (!olist) {
3334 error_report("virtfs support is disabled");
3335 exit(1);
3336 }
3337 opts = qemu_opts_parse_noisily(olist, optarg, true);
3338 if (!opts) {
3339 exit(1);
3340 }
3341
3342 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3343 qemu_opt_get(opts, "mount_tag") == NULL) {
3344 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3345 exit(1);
3346 }
3347 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3348 qemu_opts_id(opts) ?:
3349 qemu_opt_get(opts, "mount_tag"),
3350 1, NULL);
3351 if (!fsdev) {
3352 error_report("duplicate or invalid fsdev id: %s",
3353 qemu_opt_get(opts, "mount_tag"));
3354 exit(1);
3355 }
3356
3357 writeout = qemu_opt_get(opts, "writeout");
3358 if (writeout) {
3359 #ifdef CONFIG_SYNC_FILE_RANGE
3360 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3361 #else
3362 error_report("writeout=immediate not supported "
3363 "on this platform");
3364 exit(1);
3365 #endif
3366 }
3367 qemu_opt_set(fsdev, "fsdriver",
3368 qemu_opt_get(opts, "fsdriver"), &error_abort);
3369 path = qemu_opt_get(opts, "path");
3370 if (path) {
3371 qemu_opt_set(fsdev, "path", path, &error_abort);
3372 }
3373 security_model = qemu_opt_get(opts, "security_model");
3374 if (security_model) {
3375 qemu_opt_set(fsdev, "security_model", security_model,
3376 &error_abort);
3377 }
3378 socket = qemu_opt_get(opts, "socket");
3379 if (socket) {
3380 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3381 }
3382 sock_fd = qemu_opt_get(opts, "sock_fd");
3383 if (sock_fd) {
3384 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3385 }
3386
3387 qemu_opt_set_bool(fsdev, "readonly",
3388 qemu_opt_get_bool(opts, "readonly", 0),
3389 &error_abort);
3390 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3391 &error_abort);
3392 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3393 qemu_opt_set(device, "fsdev",
3394 qemu_opts_id(fsdev), &error_abort);
3395 qemu_opt_set(device, "mount_tag",
3396 qemu_opt_get(opts, "mount_tag"), &error_abort);
3397 break;
3398 }
3399 case QEMU_OPTION_virtfs_synth: {
3400 QemuOpts *fsdev;
3401 QemuOpts *device;
3402
3403 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3404 1, NULL);
3405 if (!fsdev) {
3406 error_report("duplicate option: %s", "virtfs_synth");
3407 exit(1);
3408 }
3409 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3410
3411 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3412 &error_abort);
3413 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3414 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3415 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3416 break;
3417 }
3418 case QEMU_OPTION_serial:
3419 add_device_config(DEV_SERIAL, optarg);
3420 default_serial = 0;
3421 if (strncmp(optarg, "mon:", 4) == 0) {
3422 default_monitor = 0;
3423 }
3424 break;
3425 case QEMU_OPTION_watchdog:
3426 if (watchdog) {
3427 error_report("only one watchdog option may be given");
3428 return 1;
3429 }
3430 watchdog = optarg;
3431 break;
3432 case QEMU_OPTION_watchdog_action:
3433 if (select_watchdog_action(optarg) == -1) {
3434 error_report("unknown -watchdog-action parameter");
3435 exit(1);
3436 }
3437 break;
3438 case QEMU_OPTION_virtiocon:
3439 warn_report("This option is deprecated, "
3440 "use '-device virtconsole' instead");
3441 add_device_config(DEV_VIRTCON, optarg);
3442 default_virtcon = 0;
3443 if (strncmp(optarg, "mon:", 4) == 0) {
3444 default_monitor = 0;
3445 }
3446 break;
3447 case QEMU_OPTION_parallel:
3448 add_device_config(DEV_PARALLEL, optarg);
3449 default_parallel = 0;
3450 if (strncmp(optarg, "mon:", 4) == 0) {
3451 default_monitor = 0;
3452 }
3453 break;
3454 case QEMU_OPTION_debugcon:
3455 add_device_config(DEV_DEBUGCON, optarg);
3456 break;
3457 case QEMU_OPTION_loadvm:
3458 loadvm = optarg;
3459 break;
3460 case QEMU_OPTION_full_screen:
3461 dpy.has_full_screen = true;
3462 dpy.full_screen = true;
3463 break;
3464 case QEMU_OPTION_no_frame:
3465 g_printerr("The -no-frame switch is deprecated, and will be\n"
3466 "removed in a future release.\n");
3467 no_frame = 1;
3468 break;
3469 case QEMU_OPTION_alt_grab:
3470 alt_grab = 1;
3471 break;
3472 case QEMU_OPTION_ctrl_grab:
3473 ctrl_grab = 1;
3474 break;
3475 case QEMU_OPTION_no_quit:
3476 dpy.has_window_close = true;
3477 dpy.window_close = false;
3478 break;
3479 case QEMU_OPTION_sdl:
3480 #ifdef CONFIG_SDL
3481 dpy.type = DISPLAY_TYPE_SDL;
3482 break;
3483 #else
3484 error_report("SDL support is disabled");
3485 exit(1);
3486 #endif
3487 case QEMU_OPTION_pidfile:
3488 pid_file = optarg;
3489 break;
3490 case QEMU_OPTION_win2k_hack:
3491 win2k_install_hack = 1;
3492 break;
3493 case QEMU_OPTION_acpitable:
3494 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3495 optarg, true);
3496 if (!opts) {
3497 exit(1);
3498 }
3499 acpi_table_add(opts, &error_fatal);
3500 break;
3501 case QEMU_OPTION_smbios:
3502 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3503 optarg, false);
3504 if (!opts) {
3505 exit(1);
3506 }
3507 smbios_entry_add(opts, &error_fatal);
3508 break;
3509 case QEMU_OPTION_fwcfg:
3510 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3511 optarg, true);
3512 if (opts == NULL) {
3513 exit(1);
3514 }
3515 break;
3516 case QEMU_OPTION_preconfig:
3517 preconfig_exit_requested = false;
3518 break;
3519 case QEMU_OPTION_enable_kvm:
3520 olist = qemu_find_opts("machine");
3521 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3522 break;
3523 case QEMU_OPTION_enable_hax:
3524 warn_report("Option is deprecated, use '-accel hax' instead");
3525 olist = qemu_find_opts("machine");
3526 qemu_opts_parse_noisily(olist, "accel=hax", false);
3527 break;
3528 case QEMU_OPTION_M:
3529 case QEMU_OPTION_machine:
3530 olist = qemu_find_opts("machine");
3531 opts = qemu_opts_parse_noisily(olist, optarg, true);
3532 if (!opts) {
3533 exit(1);
3534 }
3535 break;
3536 case QEMU_OPTION_no_kvm:
3537 olist = qemu_find_opts("machine");
3538 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3539 break;
3540 case QEMU_OPTION_accel:
3541 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3542 optarg, true);
3543 optarg = qemu_opt_get(accel_opts, "accel");
3544 if (!optarg || is_help_option(optarg)) {
3545 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3546 exit(0);
3547 }
3548 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3549 false, &error_abort);
3550 qemu_opt_set(opts, "accel", optarg, &error_abort);
3551 break;
3552 case QEMU_OPTION_usb:
3553 olist = qemu_find_opts("machine");
3554 qemu_opts_parse_noisily(olist, "usb=on", false);
3555 break;
3556 case QEMU_OPTION_usbdevice:
3557 error_report("'-usbdevice' is deprecated, please use "
3558 "'-device usb-...' instead");
3559 olist = qemu_find_opts("machine");
3560 qemu_opts_parse_noisily(olist, "usb=on", false);
3561 add_device_config(DEV_USB, optarg);
3562 break;
3563 case QEMU_OPTION_device:
3564 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3565 optarg, true)) {
3566 exit(1);
3567 }
3568 break;
3569 case QEMU_OPTION_smp:
3570 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3571 optarg, true)) {
3572 exit(1);
3573 }
3574 break;
3575 case QEMU_OPTION_vnc:
3576 vnc_parse(optarg, &error_fatal);
3577 break;
3578 case QEMU_OPTION_no_acpi:
3579 acpi_enabled = 0;
3580 break;
3581 case QEMU_OPTION_no_hpet:
3582 no_hpet = 1;
3583 break;
3584 case QEMU_OPTION_no_reboot:
3585 no_reboot = 1;
3586 break;
3587 case QEMU_OPTION_no_shutdown:
3588 no_shutdown = 1;
3589 break;
3590 case QEMU_OPTION_show_cursor:
3591 cursor_hide = 0;
3592 break;
3593 case QEMU_OPTION_uuid:
3594 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3595 error_report("failed to parse UUID string: wrong format");
3596 exit(1);
3597 }
3598 qemu_uuid_set = true;
3599 break;
3600 case QEMU_OPTION_option_rom:
3601 if (nb_option_roms >= MAX_OPTION_ROMS) {
3602 error_report("too many option ROMs");
3603 exit(1);
3604 }
3605 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3606 optarg, true);
3607 if (!opts) {
3608 exit(1);
3609 }
3610 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3611 option_rom[nb_option_roms].bootindex =
3612 qemu_opt_get_number(opts, "bootindex", -1);
3613 if (!option_rom[nb_option_roms].name) {
3614 error_report("Option ROM file is not specified");
3615 exit(1);
3616 }
3617 nb_option_roms++;
3618 break;
3619 case QEMU_OPTION_semihosting:
3620 semihosting.enabled = true;
3621 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3622 break;
3623 case QEMU_OPTION_semihosting_config:
3624 semihosting.enabled = true;
3625 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3626 optarg, false);
3627 if (opts != NULL) {
3628 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3629 true);
3630 const char *target = qemu_opt_get(opts, "target");
3631 if (target != NULL) {
3632 if (strcmp("native", target) == 0) {
3633 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3634 } else if (strcmp("gdb", target) == 0) {
3635 semihosting.target = SEMIHOSTING_TARGET_GDB;
3636 } else if (strcmp("auto", target) == 0) {
3637 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3638 } else {
3639 error_report("unsupported semihosting-config %s",
3640 optarg);
3641 exit(1);
3642 }
3643 } else {
3644 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3645 }
3646 /* Set semihosting argument count and vector */
3647 qemu_opt_foreach(opts, add_semihosting_arg,
3648 &semihosting, NULL);
3649 } else {
3650 error_report("unsupported semihosting-config %s", optarg);
3651 exit(1);
3652 }
3653 break;
3654 case QEMU_OPTION_name:
3655 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3656 optarg, true);
3657 if (!opts) {
3658 exit(1);
3659 }
3660 break;
3661 case QEMU_OPTION_prom_env:
3662 if (nb_prom_envs >= MAX_PROM_ENVS) {
3663 error_report("too many prom variables");
3664 exit(1);
3665 }
3666 prom_envs[nb_prom_envs] = optarg;
3667 nb_prom_envs++;
3668 break;
3669 case QEMU_OPTION_old_param:
3670 old_param = 1;
3671 break;
3672 case QEMU_OPTION_clock:
3673 /* Clock options no longer exist. Keep this option for
3674 * backward compatibility.
3675 */
3676 warn_report("This option is ignored and will be removed soon");
3677 break;
3678 case QEMU_OPTION_rtc:
3679 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3680 false);
3681 if (!opts) {
3682 exit(1);
3683 }
3684 configure_rtc(opts);
3685 break;
3686 case QEMU_OPTION_tb_size:
3687 #ifndef CONFIG_TCG
3688 error_report("TCG is disabled");
3689 exit(1);
3690 #endif
3691 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3692 error_report("Invalid argument to -tb-size");
3693 exit(1);
3694 }
3695 break;
3696 case QEMU_OPTION_icount:
3697 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3698 optarg, true);
3699 if (!icount_opts) {
3700 exit(1);
3701 }
3702 break;
3703 case QEMU_OPTION_incoming:
3704 if (!incoming) {
3705 runstate_set(RUN_STATE_INMIGRATE);
3706 }
3707 incoming = optarg;
3708 break;
3709 case QEMU_OPTION_only_migratable:
3710 /*
3711 * TODO: we can remove this option one day, and we
3712 * should all use:
3713 *
3714 * "-global migration.only-migratable=true"
3715 */
3716 qemu_global_option("migration.only-migratable=true");
3717 break;
3718 case QEMU_OPTION_nodefaults:
3719 has_defaults = 0;
3720 break;
3721 case QEMU_OPTION_xen_domid:
3722 if (!(xen_available())) {
3723 error_report("Option not supported for this target");
3724 exit(1);
3725 }
3726 xen_domid = atoi(optarg);
3727 break;
3728 case QEMU_OPTION_xen_create:
3729 if (!(xen_available())) {
3730 error_report("Option not supported for this target");
3731 exit(1);
3732 }
3733 xen_mode = XEN_CREATE;
3734 break;
3735 case QEMU_OPTION_xen_attach:
3736 if (!(xen_available())) {
3737 error_report("Option not supported for this target");
3738 exit(1);
3739 }
3740 xen_mode = XEN_ATTACH;
3741 break;
3742 case QEMU_OPTION_xen_domid_restrict:
3743 if (!(xen_available())) {
3744 error_report("Option not supported for this target");
3745 exit(1);
3746 }
3747 xen_domid_restrict = true;
3748 break;
3749 case QEMU_OPTION_trace:
3750 g_free(trace_file);
3751 trace_file = trace_opt_parse(optarg);
3752 break;
3753 case QEMU_OPTION_readconfig:
3754 {
3755 int ret = qemu_read_config_file(optarg);
3756 if (ret < 0) {
3757 error_report("read config %s: %s", optarg,
3758 strerror(-ret));
3759 exit(1);
3760 }
3761 break;
3762 }
3763 case QEMU_OPTION_spice:
3764 olist = qemu_find_opts("spice");
3765 if (!olist) {
3766 error_report("spice support is disabled");
3767 exit(1);
3768 }
3769 opts = qemu_opts_parse_noisily(olist, optarg, false);
3770 if (!opts) {
3771 exit(1);
3772 }
3773 display_remote++;
3774 break;
3775 case QEMU_OPTION_writeconfig:
3776 {
3777 FILE *fp;
3778 if (strcmp(optarg, "-") == 0) {
3779 fp = stdout;
3780 } else {
3781 fp = fopen(optarg, "w");
3782 if (fp == NULL) {
3783 error_report("open %s: %s", optarg,
3784 strerror(errno));
3785 exit(1);
3786 }
3787 }
3788 qemu_config_write(fp);
3789 if (fp != stdout) {
3790 fclose(fp);
3791 }
3792 break;
3793 }
3794 case QEMU_OPTION_qtest:
3795 qtest_chrdev = optarg;
3796 break;
3797 case QEMU_OPTION_qtest_log:
3798 qtest_log = optarg;
3799 break;
3800 case QEMU_OPTION_sandbox:
3801 #ifdef CONFIG_SECCOMP
3802 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3803 optarg, true);
3804 if (!opts) {
3805 exit(1);
3806 }
3807 #else
3808 error_report("-sandbox support is not enabled "
3809 "in this QEMU binary");
3810 exit(1);
3811 #endif
3812 break;
3813 case QEMU_OPTION_add_fd:
3814 #ifndef _WIN32
3815 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3816 optarg, false);
3817 if (!opts) {
3818 exit(1);
3819 }
3820 #else
3821 error_report("File descriptor passing is disabled on this "
3822 "platform");
3823 exit(1);
3824 #endif
3825 break;
3826 case QEMU_OPTION_object:
3827 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3828 optarg, true);
3829 if (!opts) {
3830 exit(1);
3831 }
3832 break;
3833 case QEMU_OPTION_realtime:
3834 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3835 optarg, false);
3836 if (!opts) {
3837 exit(1);
3838 }
3839 /* Don't override the -overcommit option if set */
3840 enable_mlock = enable_mlock ||
3841 qemu_opt_get_bool(opts, "mlock", true);
3842 break;
3843 case QEMU_OPTION_overcommit:
3844 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3845 optarg, false);
3846 if (!opts) {
3847 exit(1);
3848 }
3849 /* Don't override the -realtime option if set */
3850 enable_mlock = enable_mlock ||
3851 qemu_opt_get_bool(opts, "mem-lock", false);
3852 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3853 break;
3854 case QEMU_OPTION_msg:
3855 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3856 false);
3857 if (!opts) {
3858 exit(1);
3859 }
3860 configure_msg(opts);
3861 break;
3862 case QEMU_OPTION_dump_vmstate:
3863 if (vmstate_dump_file) {
3864 error_report("only one '-dump-vmstate' "
3865 "option may be given");
3866 exit(1);
3867 }
3868 vmstate_dump_file = fopen(optarg, "w");
3869 if (vmstate_dump_file == NULL) {
3870 error_report("open %s: %s", optarg, strerror(errno));
3871 exit(1);
3872 }
3873 break;
3874 case QEMU_OPTION_enable_sync_profile:
3875 qsp_enable();
3876 break;
3877 case QEMU_OPTION_nouserconfig:
3878 /* Nothing to be parsed here. Especially, do not error out below. */
3879 break;
3880 default:
3881 if (os_parse_cmd_args(popt->index, optarg)) {
3882 error_report("Option not supported in this build");
3883 exit(1);
3884 }
3885 }
3886 }
3887 }
3888 /*
3889 * Clear error location left behind by the loop.
3890 * Best done right after the loop. Do not insert code here!
3891 */
3892 loc_set_none();
3893
3894 replay_configure(icount_opts);
3895
3896 if (incoming && !preconfig_exit_requested) {
3897 error_report("'preconfig' and 'incoming' options are "
3898 "mutually exclusive");
3899 exit(EXIT_FAILURE);
3900 }
3901
3902 machine_class = select_machine();
3903
3904 set_memory_options(&ram_slots, &maxram_size, machine_class);
3905
3906 os_daemonize();
3907 rcu_disable_atfork();
3908
3909 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3910 error_report("could not acquire pid file: %s", strerror(errno));
3911 exit(1);
3912 }
3913
3914 if (qemu_init_main_loop(&main_loop_err)) {
3915 error_report_err(main_loop_err);
3916 exit(1);
3917 }
3918
3919 #ifdef CONFIG_SECCOMP
3920 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
3921 parse_sandbox, NULL, NULL)) {
3922 exit(1);
3923 }
3924 #endif
3925
3926 if (qemu_opts_foreach(qemu_find_opts("name"),
3927 parse_name, NULL, NULL)) {
3928 exit(1);
3929 }
3930
3931 #ifndef _WIN32
3932 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
3933 parse_add_fd, NULL, NULL)) {
3934 exit(1);
3935 }
3936
3937 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
3938 cleanup_add_fd, NULL, NULL)) {
3939 exit(1);
3940 }
3941 #endif
3942
3943 current_machine = MACHINE(object_new(object_class_get_name(
3944 OBJECT_CLASS(machine_class))));
3945 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3946 exit(0);
3947 }
3948 object_property_add_child(object_get_root(), "machine",
3949 OBJECT(current_machine), &error_abort);
3950
3951 if (machine_class->minimum_page_bits) {
3952 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3953 /* This would be a board error: specifying a minimum smaller than
3954 * a target's compile-time fixed setting.
3955 */
3956 g_assert_not_reached();
3957 }
3958 }
3959
3960 cpu_exec_init_all();
3961
3962 if (machine_class->hw_version) {
3963 qemu_set_hw_version(machine_class->hw_version);
3964 }
3965
3966 if (cpu_model && is_help_option(cpu_model)) {
3967 list_cpus(stdout, &fprintf, cpu_model);
3968 exit(0);
3969 }
3970
3971 if (!trace_init_backends()) {
3972 exit(1);
3973 }
3974 trace_init_file(trace_file);
3975
3976 /* Open the logfile at this point and set the log mask if necessary.
3977 */
3978 if (log_file) {
3979 qemu_set_log_filename(log_file, &error_fatal);
3980 }
3981
3982 if (log_mask) {
3983 int mask;
3984 mask = qemu_str_to_log_mask(log_mask);
3985 if (!mask) {
3986 qemu_print_log_usage(stdout);
3987 exit(1);
3988 }
3989 qemu_set_log(mask);
3990 } else {
3991 qemu_set_log(0);
3992 }
3993
3994 /* add configured firmware directories */
3995 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3996 for (i = 0; dirs[i] != NULL; i++) {
3997 qemu_add_data_dir(dirs[i]);
3998 }
3999 g_strfreev(dirs);
4000
4001 /* try to find datadir relative to the executable path */
4002 dir = os_find_datadir();
4003 qemu_add_data_dir(dir);
4004 g_free(dir);
4005
4006 /* add the datadir specified when building */
4007 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4008
4009 /* -L help lists the data directories and exits. */
4010 if (list_data_dirs) {
4011 for (i = 0; i < data_dir_idx; i++) {
4012 printf("%s\n", data_dir[i]);
4013 }
4014 exit(0);
4015 }
4016
4017 /* machine_class: default to UP */
4018 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4019 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4020 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4021
4022 /* default to machine_class->default_cpus */
4023 smp_cpus = machine_class->default_cpus;
4024 max_cpus = machine_class->default_cpus;
4025
4026 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4027
4028 /* sanity-check smp_cpus and max_cpus against machine_class */
4029 if (smp_cpus < machine_class->min_cpus) {
4030 error_report("Invalid SMP CPUs %d. The min CPUs "
4031 "supported by machine '%s' is %d", smp_cpus,
4032 machine_class->name, machine_class->min_cpus);
4033 exit(1);
4034 }
4035 if (max_cpus > machine_class->max_cpus) {
4036 error_report("Invalid SMP CPUs %d. The max CPUs "
4037 "supported by machine '%s' is %d", max_cpus,
4038 machine_class->name, machine_class->max_cpus);
4039 exit(1);
4040 }
4041
4042 /*
4043 * Get the default machine options from the machine if it is not already
4044 * specified either by the configuration file or by the command line.
4045 */
4046 if (machine_class->default_machine_opts) {
4047 qemu_opts_set_defaults(qemu_find_opts("machine"),
4048 machine_class->default_machine_opts, 0);
4049 }
4050
4051 qemu_opts_foreach(qemu_find_opts("device"),
4052 default_driver_check, NULL, NULL);
4053 qemu_opts_foreach(qemu_find_opts("global"),
4054 default_driver_check, NULL, NULL);
4055
4056 if (!vga_model && !default_vga) {
4057 vga_interface_type = VGA_DEVICE;
4058 }
4059 if (!has_defaults || machine_class->no_serial) {
4060 default_serial = 0;
4061 }
4062 if (!has_defaults || machine_class->no_parallel) {
4063 default_parallel = 0;
4064 }
4065 if (!has_defaults || !machine_class->use_virtcon) {
4066 default_virtcon = 0;
4067 }
4068 if (!has_defaults || machine_class->no_floppy) {
4069 default_floppy = 0;
4070 }
4071 if (!has_defaults || machine_class->no_cdrom) {
4072 default_cdrom = 0;
4073 }
4074 if (!has_defaults || machine_class->no_sdcard) {
4075 default_sdcard = 0;
4076 }
4077 if (!has_defaults) {
4078 default_monitor = 0;
4079 default_net = 0;
4080 default_vga = 0;
4081 }
4082
4083 if (is_daemonized()) {
4084 if (!preconfig_exit_requested) {
4085 error_report("'preconfig' and 'daemonize' options are "
4086 "mutually exclusive");
4087 exit(EXIT_FAILURE);
4088 }
4089
4090 /* According to documentation and historically, -nographic redirects
4091 * serial port, parallel port and monitor to stdio, which does not work
4092 * with -daemonize. We can redirect these to null instead, but since
4093 * -nographic is legacy, let's just error out.
4094 * We disallow -nographic only if all other ports are not redirected
4095 * explicitly, to not break existing legacy setups which uses
4096 * -nographic _and_ redirects all ports explicitly - this is valid
4097 * usage, -nographic is just a no-op in this case.
4098 */
4099 if (nographic
4100 && (default_parallel || default_serial
4101 || default_monitor || default_virtcon)) {
4102 error_report("-nographic cannot be used with -daemonize");
4103 exit(1);
4104 }
4105 #ifdef CONFIG_CURSES
4106 if (dpy.type == DISPLAY_TYPE_CURSES) {
4107 error_report("curses display cannot be used with -daemonize");
4108 exit(1);
4109 }
4110 #endif
4111 }
4112
4113 if (nographic) {
4114 if (default_parallel)
4115 add_device_config(DEV_PARALLEL, "null");
4116 if (default_serial && default_monitor) {
4117 add_device_config(DEV_SERIAL, "mon:stdio");
4118 } else if (default_virtcon && default_monitor) {
4119 add_device_config(DEV_VIRTCON, "mon:stdio");
4120 } else {
4121 if (default_serial)
4122 add_device_config(DEV_SERIAL, "stdio");
4123 if (default_virtcon)
4124 add_device_config(DEV_VIRTCON, "stdio");
4125 if (default_monitor)
4126 monitor_parse("stdio", "readline", false);
4127 }
4128 } else {
4129 if (default_serial)
4130 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4131 if (default_parallel)
4132 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4133 if (default_monitor)
4134 monitor_parse("vc:80Cx24C", "readline", false);
4135 if (default_virtcon)
4136 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4137 }
4138
4139 #if defined(CONFIG_VNC)
4140 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4141 display_remote++;
4142 }
4143 #endif
4144 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4145 if (!qemu_display_find_default(&dpy)) {
4146 dpy.type = DISPLAY_TYPE_NONE;
4147 #if defined(CONFIG_VNC)
4148 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4149 #endif
4150 }
4151 }
4152 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4153 dpy.type = DISPLAY_TYPE_NONE;
4154 }
4155
4156 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4157 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4158 "for SDL, ignoring option");
4159 }
4160 if (dpy.has_window_close &&
4161 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4162 error_report("-no-quit is only valid for GTK and SDL, "
4163 "ignoring option");
4164 }
4165
4166 qemu_display_early_init(&dpy);
4167 qemu_console_early_init();
4168
4169 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4170 #if defined(CONFIG_OPENGL)
4171 error_report("OpenGL is not supported by the display");
4172 #else
4173 error_report("OpenGL support is disabled");
4174 #endif
4175 exit(1);
4176 }
4177
4178 page_size_init();
4179 socket_init();
4180
4181 if (qemu_opts_foreach(qemu_find_opts("object"),
4182 user_creatable_add_opts_foreach,
4183 object_create_initial, NULL)) {
4184 exit(1);
4185 }
4186
4187 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4188 chardev_init_func, NULL, NULL)) {
4189 exit(1);
4190 }
4191
4192 #ifdef CONFIG_VIRTFS
4193 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4194 fsdev_init_func, NULL, NULL)) {
4195 exit(1);
4196 }
4197 #endif
4198
4199 if (qemu_opts_foreach(qemu_find_opts("device"),
4200 device_help_func, NULL, NULL)) {
4201 exit(0);
4202 }
4203
4204 machine_opts = qemu_get_machine_opts();
4205 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4206 NULL)) {
4207 object_unref(OBJECT(current_machine));
4208 exit(1);
4209 }
4210
4211 configure_accelerator(current_machine);
4212
4213 if (!qtest_enabled() && machine_class->deprecation_reason) {
4214 error_report("Machine type '%s' is deprecated: %s",
4215 machine_class->name, machine_class->deprecation_reason);
4216 }
4217
4218 /*
4219 * Register all the global properties, including accel properties,
4220 * machine properties, and user-specified ones.
4221 */
4222 register_global_properties(current_machine);
4223
4224 /*
4225 * Migration object can only be created after global properties
4226 * are applied correctly.
4227 */
4228 migration_object_init();
4229
4230 if (qtest_chrdev) {
4231 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4232 }
4233
4234 machine_opts = qemu_get_machine_opts();
4235 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4236 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4237 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4238 bios_name = qemu_opt_get(machine_opts, "firmware");
4239
4240 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4241 if (opts) {
4242 boot_order = qemu_opt_get(opts, "order");
4243 if (boot_order) {
4244 validate_bootdevices(boot_order, &error_fatal);
4245 }
4246
4247 boot_once = qemu_opt_get(opts, "once");
4248 if (boot_once) {
4249 validate_bootdevices(boot_once, &error_fatal);
4250 }
4251
4252 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4253 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4254 }
4255
4256 if (!boot_order) {
4257 boot_order = machine_class->default_boot_order;
4258 }
4259
4260 if (!kernel_cmdline) {
4261 kernel_cmdline = "";
4262 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4263 }
4264
4265 linux_boot = (kernel_filename != NULL);
4266
4267 if (!linux_boot && *kernel_cmdline != '\0') {
4268 error_report("-append only allowed with -kernel option");
4269 exit(1);
4270 }
4271
4272 if (!linux_boot && initrd_filename != NULL) {
4273 error_report("-initrd only allowed with -kernel option");
4274 exit(1);
4275 }
4276
4277 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4278 /* fall back to the -kernel/-append */
4279 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4280 }
4281
4282 os_set_line_buffering();
4283
4284 /* spice needs the timers to be initialized by this point */
4285 qemu_spice_init();
4286
4287 cpu_ticks_init();
4288 if (icount_opts) {
4289 if (!tcg_enabled()) {
4290 error_report("-icount is not allowed with hardware virtualization");
4291 exit(1);
4292 }
4293 configure_icount(icount_opts, &error_abort);
4294 qemu_opts_del(icount_opts);
4295 }
4296
4297 if (tcg_enabled()) {
4298 qemu_tcg_configure(accel_opts, &error_fatal);
4299 }
4300
4301 if (default_net) {
4302 QemuOptsList *net = qemu_find_opts("net");
4303 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4304 #ifdef CONFIG_SLIRP
4305 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4306 #endif
4307 }
4308
4309 colo_info_init();
4310
4311 if (net_init_clients(&err) < 0) {
4312 error_report_err(err);
4313 exit(1);
4314 }
4315
4316 if (qemu_opts_foreach(qemu_find_opts("object"),
4317 user_creatable_add_opts_foreach,
4318 object_create_delayed, NULL)) {
4319 exit(1);
4320 }
4321
4322 if (tpm_init() < 0) {
4323 exit(1);
4324 }
4325
4326 /* init the bluetooth world */
4327 if (foreach_device_config(DEV_BT, bt_parse))
4328 exit(1);
4329
4330 if (!xen_enabled()) {
4331 /* On 32-bit hosts, QEMU is limited by virtual address space */
4332 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4333 error_report("at most 2047 MB RAM can be simulated");
4334 exit(1);
4335 }
4336 }
4337
4338 blk_mig_init();
4339 ram_mig_init();
4340 dirty_bitmap_mig_init();
4341
4342 /* If the currently selected machine wishes to override the units-per-bus
4343 * property of its default HBA interface type, do so now. */
4344 if (machine_class->units_per_default_bus) {
4345 override_max_devs(machine_class->block_default_type,
4346 machine_class->units_per_default_bus);
4347 }
4348
4349 /* open the virtual block devices */
4350 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4351 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4352
4353 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4354 loc_push_restore(&bdo->loc);
4355 qmp_blockdev_add(bdo->bdo, &error_fatal);
4356 loc_pop(&bdo->loc);
4357 qapi_free_BlockdevOptions(bdo->bdo);
4358 g_free(bdo);
4359 }
4360 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4361 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4362 NULL, NULL);
4363 }
4364 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4365 &machine_class->block_default_type, NULL)) {
4366 exit(1);
4367 }
4368
4369 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4370 CDROM_OPTS);
4371 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4372 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4373
4374 if (qemu_opts_foreach(qemu_find_opts("mon"),
4375 mon_init_func, NULL, NULL)) {
4376 exit(1);
4377 }
4378
4379 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4380 exit(1);
4381 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4382 exit(1);
4383 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4384 exit(1);
4385 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4386 exit(1);
4387
4388 /* If no default VGA is requested, the default is "none". */
4389 if (default_vga) {
4390 if (machine_class->default_display) {
4391 vga_model = machine_class->default_display;
4392 } else if (vga_interface_available(VGA_CIRRUS)) {
4393 vga_model = "cirrus";
4394 } else if (vga_interface_available(VGA_STD)) {
4395 vga_model = "std";
4396 }
4397 }
4398 if (vga_model) {
4399 select_vgahw(vga_model);
4400 }
4401
4402 if (watchdog) {
4403 i = select_watchdog(watchdog);
4404 if (i > 0)
4405 exit (i == 1 ? 1 : 0);
4406 }
4407
4408 /* This checkpoint is required by replay to separate prior clock
4409 reading from the other reads, because timer polling functions query
4410 clock values from the log. */
4411 replay_checkpoint(CHECKPOINT_INIT);
4412 qdev_machine_init();
4413
4414 current_machine->ram_size = ram_size;
4415 current_machine->maxram_size = maxram_size;
4416 current_machine->ram_slots = ram_slots;
4417 current_machine->boot_order = boot_order;
4418
4419 /* parse features once if machine provides default cpu_type */
4420 current_machine->cpu_type = machine_class->default_cpu_type;
4421 if (cpu_model) {
4422 current_machine->cpu_type = parse_cpu_model(cpu_model);
4423 }
4424 parse_numa_opts(current_machine);
4425
4426 /* do monitor/qmp handling at preconfig state if requested */
4427 main_loop();
4428
4429 /* from here on runstate is RUN_STATE_PRELAUNCH */
4430 machine_run_board_init(current_machine);
4431
4432 realtime_init();
4433
4434 soundhw_init();
4435
4436 if (hax_enabled()) {
4437 hax_sync_vcpus();
4438 }
4439
4440 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4441 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4442 exit(1);
4443 }
4444
4445 /* init USB devices */
4446 if (machine_usb(current_machine)) {
4447 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4448 exit(1);
4449 }
4450
4451 /* Check if IGD GFX passthrough. */
4452 igd_gfx_passthru();
4453
4454 /* init generic devices */
4455 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4456 if (qemu_opts_foreach(qemu_find_opts("device"),
4457 device_init_func, NULL, NULL)) {
4458 exit(1);
4459 }
4460
4461 cpu_synchronize_all_post_init();
4462
4463 rom_reset_order_override();
4464
4465 /* Did we create any drives that we failed to create a device for? */
4466 drive_check_orphaned();
4467
4468 /* Don't warn about the default network setup that you get if
4469 * no command line -net or -netdev options are specified. There
4470 * are two cases that we would otherwise complain about:
4471 * (1) board doesn't support a NIC but the implicit "-net nic"
4472 * requested one
4473 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4474 * sets up a nic that isn't connected to anything.
4475 */
4476 if (!default_net && (!qtest_enabled() || has_defaults)) {
4477 net_check_clients();
4478 }
4479
4480 if (boot_once) {
4481 qemu_boot_set(boot_once, &error_fatal);
4482 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4483 }
4484
4485 /* init local displays */
4486 ds = init_displaystate();
4487 qemu_display_init(ds, &dpy);
4488
4489 /* must be after terminal init, SDL library changes signal handlers */
4490 os_setup_signal_handling();
4491
4492 /* init remote displays */
4493 #ifdef CONFIG_VNC
4494 qemu_opts_foreach(qemu_find_opts("vnc"),
4495 vnc_init_func, NULL, NULL);
4496 #endif
4497
4498 if (using_spice) {
4499 qemu_spice_display_init();
4500 }
4501
4502 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4503 exit(1);
4504 }
4505
4506 qdev_machine_creation_done();
4507
4508 /* TODO: once all bus devices are qdevified, this should be done
4509 * when bus is created by qdev.c */
4510 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4511 qemu_run_machine_init_done_notifiers();
4512
4513 if (rom_check_and_register_reset() != 0) {
4514 error_report("rom check and register reset failed");
4515 exit(1);
4516 }
4517
4518 replay_start();
4519
4520 /* This checkpoint is required by replay to separate prior clock
4521 reading from the other reads, because timer polling functions query
4522 clock values from the log. */
4523 replay_checkpoint(CHECKPOINT_RESET);
4524 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4525 register_global_state();
4526 if (replay_mode != REPLAY_MODE_NONE) {
4527 replay_vmstate_init();
4528 } else if (loadvm) {
4529 Error *local_err = NULL;
4530 if (load_snapshot(loadvm, &local_err) < 0) {
4531 error_report_err(local_err);
4532 autostart = 0;
4533 }
4534 }
4535
4536 qdev_prop_check_globals();
4537 if (vmstate_dump_file) {
4538 /* dump and exit */
4539 dump_vmstate_json_to_file(vmstate_dump_file);
4540 return 0;
4541 }
4542
4543 if (incoming) {
4544 Error *local_err = NULL;
4545 qemu_start_incoming_migration(incoming, &local_err);
4546 if (local_err) {
4547 error_reportf_err(local_err, "-incoming %s: ", incoming);
4548 exit(1);
4549 }
4550 } else if (autostart) {
4551 vm_start();
4552 }
4553
4554 accel_setup_post(current_machine);
4555 os_setup_post();
4556
4557 main_loop();
4558
4559 gdbserver_cleanup();
4560
4561 /* No more vcpu or device emulation activity beyond this point */
4562 vm_shutdown();
4563
4564 job_cancel_sync_all();
4565 bdrv_close_all();
4566
4567 res_free();
4568
4569 /* vhost-user must be cleaned up before chardevs. */
4570 tpm_cleanup();
4571 net_cleanup();
4572 audio_cleanup();
4573 monitor_cleanup();
4574 qemu_chr_cleanup();
4575 user_creatable_cleanup();
4576 migration_object_finalize();
4577 /* TODO: unref root container, check all devices are ok */
4578
4579 return 0;
4580 }
QEmu