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tests/boot-sector: Fix the bad s390x assembler code
[qemu/ar7.git] / vl.c
blob94508300c3c43320c5485c1c599e6d2df5abd36f
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-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
38
39 #ifdef CONFIG_SDL
40 #if defined(__APPLE__) || defined(main)
41 #include <SDL.h>
42 int qemu_main(int argc, char **argv, char **envp);
43 int main(int argc, char **argv)
44 {
45 return qemu_main(argc, argv, NULL);
46 }
47 #undef main
48 #define main qemu_main
49 #endif
50 #endif /* CONFIG_SDL */
51
52 #ifdef CONFIG_COCOA
53 #undef main
54 #define main qemu_main
55 #endif /* CONFIG_COCOA */
56
57
58 #include "qemu/error-report.h"
59 #include "qemu/sockets.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "sysemu/watchdog.h"
66 #include "hw/firmware/smbios.h"
67 #include "hw/acpi/acpi.h"
68 #include "hw/xen/xen.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "net/net.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
75 #include "ui/input.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
82 #include "qemu/log.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
102 #ifdef CONFIG_VIRTFS
103 #include "fsdev/qemu-fsdev.h"
104 #endif
105 #include "sysemu/qtest.h"
106
107 #include "disas/disas.h"
108
109 #include "trace-root.h"
110 #include "trace/control.h"
111 #include "qemu/plugin.h"
112 #include "qemu/queue.h"
113 #include "sysemu/arch_init.h"
114
115 #include "ui/qemu-spice.h"
116 #include "qapi/string-input-visitor.h"
117 #include "qapi/opts-visitor.h"
118 #include "qapi/clone-visitor.h"
119 #include "qom/object_interfaces.h"
120 #include "hw/semihosting/semihost.h"
121 #include "crypto/init.h"
122 #include "sysemu/replay.h"
123 #include "qapi/qapi-events-run-state.h"
124 #include "qapi/qapi-visit-block-core.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
132
133 #define MAX_VIRTIO_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int display_opengl;
140 const char* keyboard_layout = NULL;
141 ram_addr_t ram_size;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 bool enable_cpu_pm = false;
146 int nb_nics;
147 NICInfo nd_table[MAX_NICS];
148 int autostart;
149 static enum {
150 RTC_BASE_UTC,
151 RTC_BASE_LOCALTIME,
152 RTC_BASE_DATETIME,
153 } rtc_base_type = RTC_BASE_UTC;
154 static time_t rtc_ref_start_datetime;
155 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
156 static int rtc_host_datetime_offset = -1; /* valid & used only with
157 RTC_BASE_DATETIME */
158 QEMUClockType rtc_clock;
159 int vga_interface_type = VGA_NONE;
160 static DisplayOptions dpy;
161 static int num_serial_hds;
162 static Chardev **serial_hds;
163 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
164 int win2k_install_hack = 0;
165 int singlestep = 0;
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 int only_migratable; /* turn it off unless user states otherwise */
186 bool wakeup_suspend_enabled;
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_monitor = 1;
211 static int default_floppy = 1;
212 static int default_cdrom = 1;
213 static int default_sdcard = 1;
214 static int default_vga = 1;
215 static int default_net = 1;
216
217 static struct {
218 const char *driver;
219 int *flag;
220 } default_list[] = {
221 { .driver = "isa-serial", .flag = &default_serial },
222 { .driver = "isa-parallel", .flag = &default_parallel },
223 { .driver = "isa-fdc", .flag = &default_floppy },
224 { .driver = "floppy", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .flag = &default_cdrom },
229 { .driver = "scsi-hd", .flag = &default_cdrom },
230 { .driver = "VGA", .flag = &default_vga },
231 { .driver = "isa-vga", .flag = &default_vga },
232 { .driver = "cirrus-vga", .flag = &default_vga },
233 { .driver = "isa-cirrus-vga", .flag = &default_vga },
234 { .driver = "vmware-svga", .flag = &default_vga },
235 { .driver = "qxl-vga", .flag = &default_vga },
236 { .driver = "virtio-vga", .flag = &default_vga },
237 { .driver = "ati-vga", .flag = &default_vga },
238 { .driver = "vhost-user-vga", .flag = &default_vga },
239 };
240
241 static QemuOptsList qemu_rtc_opts = {
242 .name = "rtc",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
244 .merge_lists = true,
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_NUMBER,
332 }, {
333 .name = "reboot-timeout",
334 .type = QEMU_OPT_NUMBER,
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_fw_cfg_opts = {
502 .name = "fw_cfg",
503 .implied_opt_name = "name",
504 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
505 .desc = {
506 {
507 .name = "name",
508 .type = QEMU_OPT_STRING,
509 .help = "Sets the fw_cfg name of the blob to be inserted",
510 }, {
511 .name = "file",
512 .type = QEMU_OPT_STRING,
513 .help = "Sets the name of the file from which "
514 "the fw_cfg blob will be loaded",
515 }, {
516 .name = "string",
517 .type = QEMU_OPT_STRING,
518 .help = "Sets content of the blob to be inserted from a string",
519 },
520 { /* end of list */ }
521 },
522 };
523
524 /**
525 * Get machine options
526 *
527 * Returns: machine options (never null).
528 */
529 QemuOpts *qemu_get_machine_opts(void)
530 {
531 return qemu_find_opts_singleton("machine");
532 }
533
534 const char *qemu_get_vm_name(void)
535 {
536 return qemu_name;
537 }
538
539 static void res_free(void)
540 {
541 g_free(boot_splash_filedata);
542 boot_splash_filedata = NULL;
543 }
544
545 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
546 {
547 const char *driver = qemu_opt_get(opts, "driver");
548 int i;
549
550 if (!driver)
551 return 0;
552 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
553 if (strcmp(default_list[i].driver, driver) != 0)
554 continue;
555 *(default_list[i].flag) = 0;
556 }
557 return 0;
558 }
559
560 /***********************************************************/
561 /* QEMU state */
562
563 static RunState current_run_state = RUN_STATE_PRECONFIG;
564
565 /* We use RUN_STATE__MAX but any invalid value will do */
566 static RunState vmstop_requested = RUN_STATE__MAX;
567 static QemuMutex vmstop_lock;
568
569 typedef struct {
570 RunState from;
571 RunState to;
572 } RunStateTransition;
573
574 static const RunStateTransition runstate_transitions_def[] = {
575 /* from -> to */
576 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
577 /* Early switch to inmigrate state to allow -incoming CLI option work
578 * as it used to. TODO: delay actual switching to inmigrate state to
579 * the point after machine is built and remove this hack.
580 */
581 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
582
583 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
584 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
585 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
586
587 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
588 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
589 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
590 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
591 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
592 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
593 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
594 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
595 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
596 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
597 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
598 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
599
600 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
601 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
602 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
603
604 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
605 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
607
608 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
609 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
610 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
611 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
612 { RUN_STATE_PAUSED, RUN_STATE_COLO},
613
614 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
615 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
616 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
617
618 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
619 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
621
622 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
623 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
624 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
625 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
626 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
627
628 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
629 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
630
631 { RUN_STATE_COLO, RUN_STATE_RUNNING },
632
633 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
634 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
635 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
636 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
637 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
638 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
639 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
640 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
641 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
642 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
643 { RUN_STATE_RUNNING, RUN_STATE_COLO},
644
645 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
646
647 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
648 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
649 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
650
651 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
652 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
653 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
654 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
655 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
656 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
657
658 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
659 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
660 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
661 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
662
663 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
664 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
665 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
666
667 { RUN_STATE__MAX, RUN_STATE__MAX },
668 };
669
670 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
671
672 bool runstate_check(RunState state)
673 {
674 return current_run_state == state;
675 }
676
677 bool runstate_store(char *str, size_t size)
678 {
679 const char *state = RunState_str(current_run_state);
680 size_t len = strlen(state) + 1;
681
682 if (len > size) {
683 return false;
684 }
685 memcpy(str, state, len);
686 return true;
687 }
688
689 static void runstate_init(void)
690 {
691 const RunStateTransition *p;
692
693 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
694 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
695 runstate_valid_transitions[p->from][p->to] = true;
696 }
697
698 qemu_mutex_init(&vmstop_lock);
699 }
700
701 /* This function will abort() on invalid state transitions */
702 void runstate_set(RunState new_state)
703 {
704 assert(new_state < RUN_STATE__MAX);
705
706 trace_runstate_set(current_run_state, RunState_str(current_run_state),
707 new_state, RunState_str(new_state));
708
709 if (current_run_state == new_state) {
710 return;
711 }
712
713 if (!runstate_valid_transitions[current_run_state][new_state]) {
714 error_report("invalid runstate transition: '%s' -> '%s'",
715 RunState_str(current_run_state),
716 RunState_str(new_state));
717 abort();
718 }
719
720 current_run_state = new_state;
721 }
722
723 int runstate_is_running(void)
724 {
725 return runstate_check(RUN_STATE_RUNNING);
726 }
727
728 bool runstate_needs_reset(void)
729 {
730 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
731 runstate_check(RUN_STATE_SHUTDOWN);
732 }
733
734 StatusInfo *qmp_query_status(Error **errp)
735 {
736 StatusInfo *info = g_malloc0(sizeof(*info));
737
738 info->running = runstate_is_running();
739 info->singlestep = singlestep;
740 info->status = current_run_state;
741
742 return info;
743 }
744
745 bool qemu_vmstop_requested(RunState *r)
746 {
747 qemu_mutex_lock(&vmstop_lock);
748 *r = vmstop_requested;
749 vmstop_requested = RUN_STATE__MAX;
750 qemu_mutex_unlock(&vmstop_lock);
751 return *r < RUN_STATE__MAX;
752 }
753
754 void qemu_system_vmstop_request_prepare(void)
755 {
756 qemu_mutex_lock(&vmstop_lock);
757 }
758
759 void qemu_system_vmstop_request(RunState state)
760 {
761 vmstop_requested = state;
762 qemu_mutex_unlock(&vmstop_lock);
763 qemu_notify_event();
764 }
765
766 /***********************************************************/
767 /* RTC reference time/date access */
768 static time_t qemu_ref_timedate(QEMUClockType clock)
769 {
770 time_t value = qemu_clock_get_ms(clock) / 1000;
771 switch (clock) {
772 case QEMU_CLOCK_REALTIME:
773 value -= rtc_realtime_clock_offset;
774 /* fall through */
775 case QEMU_CLOCK_VIRTUAL:
776 value += rtc_ref_start_datetime;
777 break;
778 case QEMU_CLOCK_HOST:
779 if (rtc_base_type == RTC_BASE_DATETIME) {
780 value -= rtc_host_datetime_offset;
781 }
782 break;
783 default:
784 assert(0);
785 }
786 return value;
787 }
788
789 void qemu_get_timedate(struct tm *tm, int offset)
790 {
791 time_t ti = qemu_ref_timedate(rtc_clock);
792
793 ti += offset;
794
795 switch (rtc_base_type) {
796 case RTC_BASE_DATETIME:
797 case RTC_BASE_UTC:
798 gmtime_r(&ti, tm);
799 break;
800 case RTC_BASE_LOCALTIME:
801 localtime_r(&ti, tm);
802 break;
803 }
804 }
805
806 int qemu_timedate_diff(struct tm *tm)
807 {
808 time_t seconds;
809
810 switch (rtc_base_type) {
811 case RTC_BASE_DATETIME:
812 case RTC_BASE_UTC:
813 seconds = mktimegm(tm);
814 break;
815 case RTC_BASE_LOCALTIME:
816 {
817 struct tm tmp = *tm;
818 tmp.tm_isdst = -1; /* use timezone to figure it out */
819 seconds = mktime(&tmp);
820 break;
821 }
822 default:
823 abort();
824 }
825
826 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
827 }
828
829 static void configure_rtc_base_datetime(const char *startdate)
830 {
831 time_t rtc_start_datetime;
832 struct tm tm;
833
834 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
835 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
836 /* OK */
837 } else if (sscanf(startdate, "%d-%d-%d",
838 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
839 tm.tm_hour = 0;
840 tm.tm_min = 0;
841 tm.tm_sec = 0;
842 } else {
843 goto date_fail;
844 }
845 tm.tm_year -= 1900;
846 tm.tm_mon--;
847 rtc_start_datetime = mktimegm(&tm);
848 if (rtc_start_datetime == -1) {
849 date_fail:
850 error_report("invalid datetime format");
851 error_printf("valid formats: "
852 "'2006-06-17T16:01:21' or '2006-06-17'\n");
853 exit(1);
854 }
855 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
856 rtc_ref_start_datetime = rtc_start_datetime;
857 }
858
859 static void configure_rtc(QemuOpts *opts)
860 {
861 const char *value;
862
863 /* Set defaults */
864 rtc_clock = QEMU_CLOCK_HOST;
865 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
866 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
867
868 value = qemu_opt_get(opts, "base");
869 if (value) {
870 if (!strcmp(value, "utc")) {
871 rtc_base_type = RTC_BASE_UTC;
872 } else if (!strcmp(value, "localtime")) {
873 Error *blocker = NULL;
874 rtc_base_type = RTC_BASE_LOCALTIME;
875 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
876 "-rtc base=localtime");
877 replay_add_blocker(blocker);
878 } else {
879 rtc_base_type = RTC_BASE_DATETIME;
880 configure_rtc_base_datetime(value);
881 }
882 }
883 value = qemu_opt_get(opts, "clock");
884 if (value) {
885 if (!strcmp(value, "host")) {
886 rtc_clock = QEMU_CLOCK_HOST;
887 } else if (!strcmp(value, "rt")) {
888 rtc_clock = QEMU_CLOCK_REALTIME;
889 } else if (!strcmp(value, "vm")) {
890 rtc_clock = QEMU_CLOCK_VIRTUAL;
891 } else {
892 error_report("invalid option value '%s'", value);
893 exit(1);
894 }
895 }
896 value = qemu_opt_get(opts, "driftfix");
897 if (value) {
898 if (!strcmp(value, "slew")) {
899 static GlobalProperty slew_lost_ticks = {
900 .driver = "mc146818rtc",
901 .property = "lost_tick_policy",
902 .value = "slew",
903 };
904
905 qdev_prop_register_global(&slew_lost_ticks);
906 } else if (!strcmp(value, "none")) {
907 /* discard is default */
908 } else {
909 error_report("invalid option value '%s'", value);
910 exit(1);
911 }
912 }
913 }
914
915 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
916 {
917 const char *proc_name;
918
919 if (qemu_opt_get(opts, "debug-threads")) {
920 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
921 }
922 qemu_name = qemu_opt_get(opts, "guest");
923
924 proc_name = qemu_opt_get(opts, "process");
925 if (proc_name) {
926 os_set_proc_name(proc_name);
927 }
928
929 return 0;
930 }
931
932 bool defaults_enabled(void)
933 {
934 return has_defaults;
935 }
936
937 #ifndef _WIN32
938 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
939 {
940 int fd, dupfd, flags;
941 int64_t fdset_id;
942 const char *fd_opaque = NULL;
943 AddfdInfo *fdinfo;
944
945 fd = qemu_opt_get_number(opts, "fd", -1);
946 fdset_id = qemu_opt_get_number(opts, "set", -1);
947 fd_opaque = qemu_opt_get(opts, "opaque");
948
949 if (fd < 0) {
950 error_setg(errp, "fd option is required and must be non-negative");
951 return -1;
952 }
953
954 if (fd <= STDERR_FILENO) {
955 error_setg(errp, "fd cannot be a standard I/O stream");
956 return -1;
957 }
958
959 /*
960 * All fds inherited across exec() necessarily have FD_CLOEXEC
961 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
962 */
963 flags = fcntl(fd, F_GETFD);
964 if (flags == -1 || (flags & FD_CLOEXEC)) {
965 error_setg(errp, "fd is not valid or already in use");
966 return -1;
967 }
968
969 if (fdset_id < 0) {
970 error_setg(errp, "set option is required and must be non-negative");
971 return -1;
972 }
973
974 #ifdef F_DUPFD_CLOEXEC
975 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
976 #else
977 dupfd = dup(fd);
978 if (dupfd != -1) {
979 qemu_set_cloexec(dupfd);
980 }
981 #endif
982 if (dupfd == -1) {
983 error_setg(errp, "error duplicating fd: %s", strerror(errno));
984 return -1;
985 }
986
987 /* add the duplicate fd, and optionally the opaque string, to the fd set */
988 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
989 &error_abort);
990 g_free(fdinfo);
991
992 return 0;
993 }
994
995 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
996 {
997 int fd;
998
999 fd = qemu_opt_get_number(opts, "fd", -1);
1000 close(fd);
1001
1002 return 0;
1003 }
1004 #endif
1005
1006 /***********************************************************/
1007 /* QEMU Block devices */
1008
1009 #define HD_OPTS "media=disk"
1010 #define CDROM_OPTS "media=cdrom"
1011 #define FD_OPTS ""
1012 #define PFLASH_OPTS ""
1013 #define MTD_OPTS ""
1014 #define SD_OPTS ""
1015
1016 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1017 {
1018 BlockInterfaceType *block_default_type = opaque;
1019
1020 return drive_new(opts, *block_default_type, errp) == NULL;
1021 }
1022
1023 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1024 {
1025 if (qemu_opt_get(opts, "snapshot") == NULL) {
1026 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1027 }
1028 return 0;
1029 }
1030
1031 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1032 int index, const char *optstr)
1033 {
1034 QemuOpts *opts;
1035 DriveInfo *dinfo;
1036
1037 if (!enable || drive_get_by_index(type, index)) {
1038 return;
1039 }
1040
1041 opts = drive_add(type, index, NULL, optstr);
1042 if (snapshot) {
1043 drive_enable_snapshot(NULL, opts, NULL);
1044 }
1045
1046 dinfo = drive_new(opts, type, &error_abort);
1047 dinfo->is_default = true;
1048
1049 }
1050
1051 typedef struct BlockdevOptionsQueueEntry {
1052 BlockdevOptions *bdo;
1053 Location loc;
1054 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1055 } BlockdevOptionsQueueEntry;
1056
1057 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1058
1059 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1060 MachineClass *machine_class, int snapshot)
1061 {
1062 /*
1063 * If the currently selected machine wishes to override the
1064 * units-per-bus property of its default HBA interface type, do so
1065 * now.
1066 */
1067 if (machine_class->units_per_default_bus) {
1068 override_max_devs(machine_class->block_default_type,
1069 machine_class->units_per_default_bus);
1070 }
1071
1072 /* open the virtual block devices */
1073 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1074 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1075
1076 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1077 loc_push_restore(&bdo->loc);
1078 qmp_blockdev_add(bdo->bdo, &error_fatal);
1079 loc_pop(&bdo->loc);
1080 qapi_free_BlockdevOptions(bdo->bdo);
1081 g_free(bdo);
1082 }
1083 if (snapshot) {
1084 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1085 NULL, NULL);
1086 }
1087 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1088 &machine_class->block_default_type, &error_fatal)) {
1089 /* We printed help */
1090 exit(0);
1091 }
1092
1093 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1094 CDROM_OPTS);
1095 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1096 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1097
1098 }
1099
1100 static QemuOptsList qemu_smp_opts = {
1101 .name = "smp-opts",
1102 .implied_opt_name = "cpus",
1103 .merge_lists = true,
1104 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1105 .desc = {
1106 {
1107 .name = "cpus",
1108 .type = QEMU_OPT_NUMBER,
1109 }, {
1110 .name = "sockets",
1111 .type = QEMU_OPT_NUMBER,
1112 }, {
1113 .name = "dies",
1114 .type = QEMU_OPT_NUMBER,
1115 }, {
1116 .name = "cores",
1117 .type = QEMU_OPT_NUMBER,
1118 }, {
1119 .name = "threads",
1120 .type = QEMU_OPT_NUMBER,
1121 }, {
1122 .name = "maxcpus",
1123 .type = QEMU_OPT_NUMBER,
1124 },
1125 { /*End of list */ }
1126 },
1127 };
1128
1129 static void realtime_init(void)
1130 {
1131 if (enable_mlock) {
1132 if (os_mlock() < 0) {
1133 error_report("locking memory failed");
1134 exit(1);
1135 }
1136 }
1137 }
1138
1139
1140 static void configure_msg(QemuOpts *opts)
1141 {
1142 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1143 }
1144
1145
1146 /* Now we still need this for compatibility with XEN. */
1147 bool has_igd_gfx_passthru;
1148 static void igd_gfx_passthru(void)
1149 {
1150 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1151 }
1152
1153 /***********************************************************/
1154 /* USB devices */
1155
1156 static int usb_device_add(const char *devname)
1157 {
1158 USBDevice *dev = NULL;
1159
1160 if (!machine_usb(current_machine)) {
1161 return -1;
1162 }
1163
1164 dev = usbdevice_create(devname);
1165 if (!dev)
1166 return -1;
1167
1168 return 0;
1169 }
1170
1171 static int usb_parse(const char *cmdline)
1172 {
1173 int r;
1174 r = usb_device_add(cmdline);
1175 if (r < 0) {
1176 error_report("could not add USB device '%s'", cmdline);
1177 }
1178 return r;
1179 }
1180
1181 /***********************************************************/
1182 /* machine registration */
1183
1184 MachineState *current_machine;
1185
1186 static MachineClass *find_machine(const char *name, GSList *machines)
1187 {
1188 GSList *el;
1189
1190 for (el = machines; el; el = el->next) {
1191 MachineClass *mc = el->data;
1192
1193 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1194 return mc;
1195 }
1196 }
1197
1198 return NULL;
1199 }
1200
1201 static MachineClass *find_default_machine(GSList *machines)
1202 {
1203 GSList *el;
1204
1205 for (el = machines; el; el = el->next) {
1206 MachineClass *mc = el->data;
1207
1208 if (mc->is_default) {
1209 return mc;
1210 }
1211 }
1212
1213 return NULL;
1214 }
1215
1216 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1217 {
1218 ObjectProperty *prop;
1219 ObjectPropertyIterator iter;
1220
1221 if (!qemu_opt_has_help_opt(opts)) {
1222 return 0;
1223 }
1224
1225 object_property_iter_init(&iter, OBJECT(machine));
1226 while ((prop = object_property_iter_next(&iter))) {
1227 if (!prop->set) {
1228 continue;
1229 }
1230
1231 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1232 prop->name, prop->type);
1233 if (prop->description) {
1234 printf(" (%s)\n", prop->description);
1235 } else {
1236 printf("\n");
1237 }
1238 }
1239
1240 return 1;
1241 }
1242
1243 struct VMChangeStateEntry {
1244 VMChangeStateHandler *cb;
1245 void *opaque;
1246 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1247 int priority;
1248 };
1249
1250 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1251
1252 /**
1253 * qemu_add_vm_change_state_handler_prio:
1254 * @cb: the callback to invoke
1255 * @opaque: user data passed to the callback
1256 * @priority: low priorities execute first when the vm runs and the reverse is
1257 * true when the vm stops
1258 *
1259 * Register a callback function that is invoked when the vm starts or stops
1260 * running.
1261 *
1262 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1263 */
1264 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1265 VMChangeStateHandler *cb, void *opaque, int priority)
1266 {
1267 VMChangeStateEntry *e;
1268 VMChangeStateEntry *other;
1269
1270 e = g_malloc0(sizeof(*e));
1271 e->cb = cb;
1272 e->opaque = opaque;
1273 e->priority = priority;
1274
1275 /* Keep list sorted in ascending priority order */
1276 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1277 if (priority < other->priority) {
1278 QTAILQ_INSERT_BEFORE(other, e, entries);
1279 return e;
1280 }
1281 }
1282
1283 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1284 return e;
1285 }
1286
1287 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1288 void *opaque)
1289 {
1290 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1291 }
1292
1293 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1294 {
1295 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1296 g_free(e);
1297 }
1298
1299 void vm_state_notify(int running, RunState state)
1300 {
1301 VMChangeStateEntry *e, *next;
1302
1303 trace_vm_state_notify(running, state, RunState_str(state));
1304
1305 if (running) {
1306 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1307 e->cb(e->opaque, running, state);
1308 }
1309 } else {
1310 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1311 e->cb(e->opaque, running, state);
1312 }
1313 }
1314 }
1315
1316 static ShutdownCause reset_requested;
1317 static ShutdownCause shutdown_requested;
1318 static int shutdown_signal;
1319 static pid_t shutdown_pid;
1320 static int powerdown_requested;
1321 static int debug_requested;
1322 static int suspend_requested;
1323 static bool preconfig_exit_requested = true;
1324 static WakeupReason wakeup_reason;
1325 static NotifierList powerdown_notifiers =
1326 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1327 static NotifierList suspend_notifiers =
1328 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1329 static NotifierList wakeup_notifiers =
1330 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1331 static NotifierList shutdown_notifiers =
1332 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1333 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1334
1335 ShutdownCause qemu_shutdown_requested_get(void)
1336 {
1337 return shutdown_requested;
1338 }
1339
1340 ShutdownCause qemu_reset_requested_get(void)
1341 {
1342 return reset_requested;
1343 }
1344
1345 static int qemu_shutdown_requested(void)
1346 {
1347 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1348 }
1349
1350 static void qemu_kill_report(void)
1351 {
1352 if (!qtest_driver() && shutdown_signal) {
1353 if (shutdown_pid == 0) {
1354 /* This happens for eg ^C at the terminal, so it's worth
1355 * avoiding printing an odd message in that case.
1356 */
1357 error_report("terminating on signal %d", shutdown_signal);
1358 } else {
1359 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1360
1361 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1362 shutdown_signal, shutdown_pid,
1363 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1364 g_free(shutdown_cmd);
1365 }
1366 shutdown_signal = 0;
1367 }
1368 }
1369
1370 static ShutdownCause qemu_reset_requested(void)
1371 {
1372 ShutdownCause r = reset_requested;
1373
1374 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1375 reset_requested = SHUTDOWN_CAUSE_NONE;
1376 return r;
1377 }
1378 return SHUTDOWN_CAUSE_NONE;
1379 }
1380
1381 static int qemu_suspend_requested(void)
1382 {
1383 int r = suspend_requested;
1384 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1385 suspend_requested = 0;
1386 return r;
1387 }
1388 return false;
1389 }
1390
1391 static WakeupReason qemu_wakeup_requested(void)
1392 {
1393 return wakeup_reason;
1394 }
1395
1396 static int qemu_powerdown_requested(void)
1397 {
1398 int r = powerdown_requested;
1399 powerdown_requested = 0;
1400 return r;
1401 }
1402
1403 static int qemu_debug_requested(void)
1404 {
1405 int r = debug_requested;
1406 debug_requested = 0;
1407 return r;
1408 }
1409
1410 void qemu_exit_preconfig_request(void)
1411 {
1412 preconfig_exit_requested = true;
1413 }
1414
1415 /*
1416 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1417 */
1418 void qemu_system_reset(ShutdownCause reason)
1419 {
1420 MachineClass *mc;
1421
1422 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1423
1424 cpu_synchronize_all_states();
1425
1426 if (mc && mc->reset) {
1427 mc->reset(current_machine);
1428 } else {
1429 qemu_devices_reset();
1430 }
1431 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1432 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1433 }
1434 cpu_synchronize_all_post_reset();
1435 }
1436
1437 /*
1438 * Wake the VM after suspend.
1439 */
1440 static void qemu_system_wakeup(void)
1441 {
1442 MachineClass *mc;
1443
1444 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1445
1446 if (mc && mc->wakeup) {
1447 mc->wakeup(current_machine);
1448 }
1449 }
1450
1451 void qemu_system_guest_panicked(GuestPanicInformation *info)
1452 {
1453 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1454
1455 if (current_cpu) {
1456 current_cpu->crash_occurred = true;
1457 }
1458 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1459 !!info, info);
1460 vm_stop(RUN_STATE_GUEST_PANICKED);
1461 if (!no_shutdown) {
1462 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1463 !!info, info);
1464 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1465 }
1466
1467 if (info) {
1468 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1469 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1470 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1471 info->u.hyper_v.arg1,
1472 info->u.hyper_v.arg2,
1473 info->u.hyper_v.arg3,
1474 info->u.hyper_v.arg4,
1475 info->u.hyper_v.arg5);
1476 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1477 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1478 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1479 info->u.s390.core,
1480 S390CrashReason_str(info->u.s390.reason),
1481 info->u.s390.psw_mask,
1482 info->u.s390.psw_addr);
1483 }
1484 qapi_free_GuestPanicInformation(info);
1485 }
1486 }
1487
1488 void qemu_system_reset_request(ShutdownCause reason)
1489 {
1490 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1491 shutdown_requested = reason;
1492 } else {
1493 reset_requested = reason;
1494 }
1495 cpu_stop_current();
1496 qemu_notify_event();
1497 }
1498
1499 static void qemu_system_suspend(void)
1500 {
1501 pause_all_vcpus();
1502 notifier_list_notify(&suspend_notifiers, NULL);
1503 runstate_set(RUN_STATE_SUSPENDED);
1504 qapi_event_send_suspend();
1505 }
1506
1507 void qemu_system_suspend_request(void)
1508 {
1509 if (runstate_check(RUN_STATE_SUSPENDED)) {
1510 return;
1511 }
1512 suspend_requested = 1;
1513 cpu_stop_current();
1514 qemu_notify_event();
1515 }
1516
1517 void qemu_register_suspend_notifier(Notifier *notifier)
1518 {
1519 notifier_list_add(&suspend_notifiers, notifier);
1520 }
1521
1522 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1523 {
1524 trace_system_wakeup_request(reason);
1525
1526 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1527 error_setg(errp,
1528 "Unable to wake up: guest is not in suspended state");
1529 return;
1530 }
1531 if (!(wakeup_reason_mask & (1 << reason))) {
1532 return;
1533 }
1534 runstate_set(RUN_STATE_RUNNING);
1535 wakeup_reason = reason;
1536 qemu_notify_event();
1537 }
1538
1539 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1540 {
1541 if (enabled) {
1542 wakeup_reason_mask |= (1 << reason);
1543 } else {
1544 wakeup_reason_mask &= ~(1 << reason);
1545 }
1546 }
1547
1548 void qemu_register_wakeup_notifier(Notifier *notifier)
1549 {
1550 notifier_list_add(&wakeup_notifiers, notifier);
1551 }
1552
1553 void qemu_register_wakeup_support(void)
1554 {
1555 wakeup_suspend_enabled = true;
1556 }
1557
1558 bool qemu_wakeup_suspend_enabled(void)
1559 {
1560 return wakeup_suspend_enabled;
1561 }
1562
1563 void qemu_system_killed(int signal, pid_t pid)
1564 {
1565 shutdown_signal = signal;
1566 shutdown_pid = pid;
1567 no_shutdown = 0;
1568
1569 /* Cannot call qemu_system_shutdown_request directly because
1570 * we are in a signal handler.
1571 */
1572 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1573 qemu_notify_event();
1574 }
1575
1576 void qemu_system_shutdown_request(ShutdownCause reason)
1577 {
1578 trace_qemu_system_shutdown_request(reason);
1579 replay_shutdown_request(reason);
1580 shutdown_requested = reason;
1581 qemu_notify_event();
1582 }
1583
1584 static void qemu_system_powerdown(void)
1585 {
1586 qapi_event_send_powerdown();
1587 notifier_list_notify(&powerdown_notifiers, NULL);
1588 }
1589
1590 static void qemu_system_shutdown(ShutdownCause cause)
1591 {
1592 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1593 notifier_list_notify(&shutdown_notifiers, &cause);
1594 }
1595
1596 void qemu_system_powerdown_request(void)
1597 {
1598 trace_qemu_system_powerdown_request();
1599 powerdown_requested = 1;
1600 qemu_notify_event();
1601 }
1602
1603 void qemu_register_powerdown_notifier(Notifier *notifier)
1604 {
1605 notifier_list_add(&powerdown_notifiers, notifier);
1606 }
1607
1608 void qemu_register_shutdown_notifier(Notifier *notifier)
1609 {
1610 notifier_list_add(&shutdown_notifiers, notifier);
1611 }
1612
1613 void qemu_system_debug_request(void)
1614 {
1615 debug_requested = 1;
1616 qemu_notify_event();
1617 }
1618
1619 static bool main_loop_should_exit(void)
1620 {
1621 RunState r;
1622 ShutdownCause request;
1623
1624 if (runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1625 return false;
1626 }
1627 if (preconfig_exit_requested) {
1628 if (runstate_check(RUN_STATE_PRECONFIG)) {
1629 runstate_set(RUN_STATE_PRELAUNCH);
1630 }
1631 preconfig_exit_requested = false;
1632 return true;
1633 }
1634 if (qemu_debug_requested()) {
1635 vm_stop(RUN_STATE_DEBUG);
1636 }
1637 if (qemu_suspend_requested()) {
1638 qemu_system_suspend();
1639 }
1640 request = qemu_shutdown_requested();
1641 if (request) {
1642 qemu_kill_report();
1643 qemu_system_shutdown(request);
1644 if (no_shutdown) {
1645 vm_stop(RUN_STATE_SHUTDOWN);
1646 } else {
1647 return true;
1648 }
1649 }
1650 request = qemu_reset_requested();
1651 if (request) {
1652 pause_all_vcpus();
1653 qemu_system_reset(request);
1654 resume_all_vcpus();
1655 if (!runstate_check(RUN_STATE_RUNNING) &&
1656 !runstate_check(RUN_STATE_INMIGRATE)) {
1657 runstate_set(RUN_STATE_PRELAUNCH);
1658 }
1659 }
1660 if (qemu_wakeup_requested()) {
1661 pause_all_vcpus();
1662 qemu_system_wakeup();
1663 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1664 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1665 resume_all_vcpus();
1666 qapi_event_send_wakeup();
1667 }
1668 if (qemu_powerdown_requested()) {
1669 qemu_system_powerdown();
1670 }
1671 if (qemu_vmstop_requested(&r)) {
1672 vm_stop(r);
1673 }
1674 return false;
1675 }
1676
1677 static void main_loop(void)
1678 {
1679 #ifdef CONFIG_PROFILER
1680 int64_t ti;
1681 #endif
1682 while (!main_loop_should_exit()) {
1683 #ifdef CONFIG_PROFILER
1684 ti = profile_getclock();
1685 #endif
1686 main_loop_wait(false);
1687 #ifdef CONFIG_PROFILER
1688 dev_time += profile_getclock() - ti;
1689 #endif
1690 }
1691 }
1692
1693 static void version(void)
1694 {
1695 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1696 QEMU_COPYRIGHT "\n");
1697 }
1698
1699 static void help(int exitcode)
1700 {
1701 version();
1702 printf("usage: %s [options] [disk_image]\n\n"
1703 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1704 error_get_progname());
1705
1706 #define QEMU_OPTIONS_GENERATE_HELP
1707 #include "qemu-options-wrapper.h"
1708
1709 printf("\nDuring emulation, the following keys are useful:\n"
1710 "ctrl-alt-f toggle full screen\n"
1711 "ctrl-alt-n switch to virtual console 'n'\n"
1712 "ctrl-alt toggle mouse and keyboard grab\n"
1713 "\n"
1714 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1715 "\n"
1716 QEMU_HELP_BOTTOM "\n");
1717
1718 exit(exitcode);
1719 }
1720
1721 #define HAS_ARG 0x0001
1722
1723 typedef struct QEMUOption {
1724 const char *name;
1725 int flags;
1726 int index;
1727 uint32_t arch_mask;
1728 } QEMUOption;
1729
1730 static const QEMUOption qemu_options[] = {
1731 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1732 #define QEMU_OPTIONS_GENERATE_OPTIONS
1733 #include "qemu-options-wrapper.h"
1734 { NULL },
1735 };
1736
1737 typedef struct VGAInterfaceInfo {
1738 const char *opt_name; /* option name */
1739 const char *name; /* human-readable name */
1740 /* Class names indicating that support is available.
1741 * If no class is specified, the interface is always available */
1742 const char *class_names[2];
1743 } VGAInterfaceInfo;
1744
1745 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1746 [VGA_NONE] = {
1747 .opt_name = "none",
1748 .name = "no graphic card",
1749 },
1750 [VGA_STD] = {
1751 .opt_name = "std",
1752 .name = "standard VGA",
1753 .class_names = { "VGA", "isa-vga" },
1754 },
1755 [VGA_CIRRUS] = {
1756 .opt_name = "cirrus",
1757 .name = "Cirrus VGA",
1758 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1759 },
1760 [VGA_VMWARE] = {
1761 .opt_name = "vmware",
1762 .name = "VMWare SVGA",
1763 .class_names = { "vmware-svga" },
1764 },
1765 [VGA_VIRTIO] = {
1766 .opt_name = "virtio",
1767 .name = "Virtio VGA",
1768 .class_names = { "virtio-vga" },
1769 },
1770 [VGA_QXL] = {
1771 .opt_name = "qxl",
1772 .name = "QXL VGA",
1773 .class_names = { "qxl-vga" },
1774 },
1775 [VGA_TCX] = {
1776 .opt_name = "tcx",
1777 .name = "TCX framebuffer",
1778 .class_names = { "SUNW,tcx" },
1779 },
1780 [VGA_CG3] = {
1781 .opt_name = "cg3",
1782 .name = "CG3 framebuffer",
1783 .class_names = { "cgthree" },
1784 },
1785 [VGA_XENFB] = {
1786 .opt_name = "xenfb",
1787 .name = "Xen paravirtualized framebuffer",
1788 },
1789 };
1790
1791 static bool vga_interface_available(VGAInterfaceType t)
1792 {
1793 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1794
1795 assert(t < VGA_TYPE_MAX);
1796 return !ti->class_names[0] ||
1797 object_class_by_name(ti->class_names[0]) ||
1798 object_class_by_name(ti->class_names[1]);
1799 }
1800
1801 static const char *
1802 get_default_vga_model(const MachineClass *machine_class)
1803 {
1804 if (machine_class->default_display) {
1805 return machine_class->default_display;
1806 } else if (vga_interface_available(VGA_CIRRUS)) {
1807 return "cirrus";
1808 } else if (vga_interface_available(VGA_STD)) {
1809 return "std";
1810 }
1811
1812 return NULL;
1813 }
1814
1815 static void select_vgahw(const MachineClass *machine_class, const char *p)
1816 {
1817 const char *opts;
1818 int t;
1819
1820 if (g_str_equal(p, "help")) {
1821 const char *def = get_default_vga_model(machine_class);
1822
1823 for (t = 0; t < VGA_TYPE_MAX; t++) {
1824 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1825
1826 if (vga_interface_available(t) && ti->opt_name) {
1827 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1828 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1829 }
1830 }
1831 exit(0);
1832 }
1833
1834 assert(vga_interface_type == VGA_NONE);
1835 for (t = 0; t < VGA_TYPE_MAX; t++) {
1836 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1837 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1838 if (!vga_interface_available(t)) {
1839 error_report("%s not available", ti->name);
1840 exit(1);
1841 }
1842 vga_interface_type = t;
1843 break;
1844 }
1845 }
1846 if (t == VGA_TYPE_MAX) {
1847 invalid_vga:
1848 error_report("unknown vga type: %s", p);
1849 exit(1);
1850 }
1851 while (*opts) {
1852 const char *nextopt;
1853
1854 if (strstart(opts, ",retrace=", &nextopt)) {
1855 opts = nextopt;
1856 if (strstart(opts, "dumb", &nextopt))
1857 vga_retrace_method = VGA_RETRACE_DUMB;
1858 else if (strstart(opts, "precise", &nextopt))
1859 vga_retrace_method = VGA_RETRACE_PRECISE;
1860 else goto invalid_vga;
1861 } else goto invalid_vga;
1862 opts = nextopt;
1863 }
1864 }
1865
1866 static void parse_display_qapi(const char *optarg)
1867 {
1868 DisplayOptions *opts;
1869 Visitor *v;
1870
1871 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1872
1873 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1874 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1875
1876 qapi_free_DisplayOptions(opts);
1877 visit_free(v);
1878 }
1879
1880 DisplayOptions *qmp_query_display_options(Error **errp)
1881 {
1882 return QAPI_CLONE(DisplayOptions, &dpy);
1883 }
1884
1885 static void parse_display(const char *p)
1886 {
1887 const char *opts;
1888
1889 if (strstart(p, "sdl", &opts)) {
1890 /*
1891 * sdl DisplayType needs hand-crafted parser instead of
1892 * parse_display_qapi() due to some options not in
1893 * DisplayOptions, specifically:
1894 * - frame
1895 * Already deprecated.
1896 * - ctrl_grab + alt_grab
1897 * Not clear yet what happens to them long-term. Should
1898 * replaced by something better or deprecated and dropped.
1899 */
1900 dpy.type = DISPLAY_TYPE_SDL;
1901 while (*opts) {
1902 const char *nextopt;
1903
1904 if (strstart(opts, ",alt_grab=", &nextopt)) {
1905 opts = nextopt;
1906 if (strstart(opts, "on", &nextopt)) {
1907 alt_grab = 1;
1908 } else if (strstart(opts, "off", &nextopt)) {
1909 alt_grab = 0;
1910 } else {
1911 goto invalid_sdl_args;
1912 }
1913 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1914 opts = nextopt;
1915 if (strstart(opts, "on", &nextopt)) {
1916 ctrl_grab = 1;
1917 } else if (strstart(opts, "off", &nextopt)) {
1918 ctrl_grab = 0;
1919 } else {
1920 goto invalid_sdl_args;
1921 }
1922 } else if (strstart(opts, ",window_close=", &nextopt)) {
1923 opts = nextopt;
1924 dpy.has_window_close = true;
1925 if (strstart(opts, "on", &nextopt)) {
1926 dpy.window_close = true;
1927 } else if (strstart(opts, "off", &nextopt)) {
1928 dpy.window_close = false;
1929 } else {
1930 goto invalid_sdl_args;
1931 }
1932 } else if (strstart(opts, ",gl=", &nextopt)) {
1933 opts = nextopt;
1934 dpy.has_gl = true;
1935 if (strstart(opts, "on", &nextopt)) {
1936 dpy.gl = DISPLAYGL_MODE_ON;
1937 } else if (strstart(opts, "core", &nextopt)) {
1938 dpy.gl = DISPLAYGL_MODE_CORE;
1939 } else if (strstart(opts, "es", &nextopt)) {
1940 dpy.gl = DISPLAYGL_MODE_ES;
1941 } else if (strstart(opts, "off", &nextopt)) {
1942 dpy.gl = DISPLAYGL_MODE_OFF;
1943 } else {
1944 goto invalid_sdl_args;
1945 }
1946 } else {
1947 invalid_sdl_args:
1948 error_report("invalid SDL option string");
1949 exit(1);
1950 }
1951 opts = nextopt;
1952 }
1953 } else if (strstart(p, "vnc", &opts)) {
1954 /*
1955 * vnc isn't a (local) DisplayType but a protocol for remote
1956 * display access.
1957 */
1958 if (*opts == '=') {
1959 vnc_parse(opts + 1, &error_fatal);
1960 } else {
1961 error_report("VNC requires a display argument vnc=<display>");
1962 exit(1);
1963 }
1964 } else {
1965 parse_display_qapi(p);
1966 }
1967 }
1968
1969 char *qemu_find_file(int type, const char *name)
1970 {
1971 int i;
1972 const char *subdir;
1973 char *buf;
1974
1975 /* Try the name as a straight path first */
1976 if (access(name, R_OK) == 0) {
1977 trace_load_file(name, name);
1978 return g_strdup(name);
1979 }
1980
1981 switch (type) {
1982 case QEMU_FILE_TYPE_BIOS:
1983 subdir = "";
1984 break;
1985 case QEMU_FILE_TYPE_KEYMAP:
1986 subdir = "keymaps/";
1987 break;
1988 default:
1989 abort();
1990 }
1991
1992 for (i = 0; i < data_dir_idx; i++) {
1993 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
1994 if (access(buf, R_OK) == 0) {
1995 trace_load_file(name, buf);
1996 return buf;
1997 }
1998 g_free(buf);
1999 }
2000 return NULL;
2001 }
2002
2003 static void qemu_add_data_dir(const char *path)
2004 {
2005 int i;
2006
2007 if (path == NULL) {
2008 return;
2009 }
2010 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2011 return;
2012 }
2013 for (i = 0; i < data_dir_idx; i++) {
2014 if (strcmp(data_dir[i], path) == 0) {
2015 return; /* duplicate */
2016 }
2017 }
2018 data_dir[data_dir_idx++] = g_strdup(path);
2019 }
2020
2021 static inline bool nonempty_str(const char *str)
2022 {
2023 return str && *str;
2024 }
2025
2026 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2027 {
2028 gchar *buf;
2029 size_t size;
2030 const char *name, *file, *str;
2031 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2032
2033 if (fw_cfg == NULL) {
2034 error_setg(errp, "fw_cfg device not available");
2035 return -1;
2036 }
2037 name = qemu_opt_get(opts, "name");
2038 file = qemu_opt_get(opts, "file");
2039 str = qemu_opt_get(opts, "string");
2040
2041 /* we need name and either a file or the content string */
2042 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2043 error_setg(errp, "invalid argument(s)");
2044 return -1;
2045 }
2046 if (nonempty_str(file) && nonempty_str(str)) {
2047 error_setg(errp, "file and string are mutually exclusive");
2048 return -1;
2049 }
2050 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2051 error_setg(errp, "name too long (max. %d char)",
2052 FW_CFG_MAX_FILE_PATH - 1);
2053 return -1;
2054 }
2055 if (strncmp(name, "opt/", 4) != 0) {
2056 warn_report("externally provided fw_cfg item names "
2057 "should be prefixed with \"opt/\"");
2058 }
2059 if (nonempty_str(str)) {
2060 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2061 buf = g_memdup(str, size);
2062 } else {
2063 GError *err = NULL;
2064 if (!g_file_get_contents(file, &buf, &size, &err)) {
2065 error_setg(errp, "can't load %s: %s", file, err->message);
2066 g_error_free(err);
2067 return -1;
2068 }
2069 }
2070 /* For legacy, keep user files in a specific global order. */
2071 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2072 fw_cfg_add_file(fw_cfg, name, buf, size);
2073 fw_cfg_reset_order_override(fw_cfg);
2074 return 0;
2075 }
2076
2077 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2078 {
2079 return qdev_device_help(opts);
2080 }
2081
2082 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2083 {
2084 DeviceState *dev;
2085
2086 dev = qdev_device_add(opts, errp);
2087 if (!dev && *errp) {
2088 error_report_err(*errp);
2089 return -1;
2090 } else if (dev) {
2091 object_unref(OBJECT(dev));
2092 }
2093 return 0;
2094 }
2095
2096 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2097 {
2098 Error *local_err = NULL;
2099
2100 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2101 if (local_err) {
2102 error_propagate(errp, local_err);
2103 return -1;
2104 }
2105 exit(0);
2106 }
2107 return 0;
2108 }
2109
2110 #ifdef CONFIG_VIRTFS
2111 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2112 {
2113 return qemu_fsdev_add(opts, errp);
2114 }
2115 #endif
2116
2117 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2118 {
2119 Chardev *chr;
2120 bool qmp;
2121 bool pretty = false;
2122 const char *chardev;
2123 const char *mode;
2124
2125 mode = qemu_opt_get(opts, "mode");
2126 if (mode == NULL) {
2127 mode = "readline";
2128 }
2129 if (strcmp(mode, "readline") == 0) {
2130 qmp = false;
2131 } else if (strcmp(mode, "control") == 0) {
2132 qmp = true;
2133 } else {
2134 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2135 return -1;
2136 }
2137
2138 if (!qmp && qemu_opt_get(opts, "pretty")) {
2139 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2140 "and will be removed in future versions");
2141 }
2142 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2143 pretty = true;
2144 }
2145
2146 chardev = qemu_opt_get(opts, "chardev");
2147 if (!chardev) {
2148 error_report("chardev is required");
2149 exit(1);
2150 }
2151 chr = qemu_chr_find(chardev);
2152 if (chr == NULL) {
2153 error_setg(errp, "chardev \"%s\" not found", chardev);
2154 return -1;
2155 }
2156
2157 if (qmp) {
2158 monitor_init_qmp(chr, pretty);
2159 } else {
2160 monitor_init_hmp(chr, true);
2161 }
2162 return 0;
2163 }
2164
2165 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2166 {
2167 static int monitor_device_index = 0;
2168 QemuOpts *opts;
2169 const char *p;
2170 char label[32];
2171
2172 if (strstart(optarg, "chardev:", &p)) {
2173 snprintf(label, sizeof(label), "%s", p);
2174 } else {
2175 snprintf(label, sizeof(label), "compat_monitor%d",
2176 monitor_device_index);
2177 opts = qemu_chr_parse_compat(label, optarg, true);
2178 if (!opts) {
2179 error_report("parse error: %s", optarg);
2180 exit(1);
2181 }
2182 }
2183
2184 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2185 qemu_opt_set(opts, "mode", mode, &error_abort);
2186 qemu_opt_set(opts, "chardev", label, &error_abort);
2187 if (!strcmp(mode, "control")) {
2188 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2189 } else {
2190 assert(pretty == false);
2191 }
2192 monitor_device_index++;
2193 }
2194
2195 struct device_config {
2196 enum {
2197 DEV_USB, /* -usbdevice */
2198 DEV_SERIAL, /* -serial */
2199 DEV_PARALLEL, /* -parallel */
2200 DEV_DEBUGCON, /* -debugcon */
2201 DEV_GDB, /* -gdb, -s */
2202 DEV_SCLP, /* s390 sclp */
2203 } type;
2204 const char *cmdline;
2205 Location loc;
2206 QTAILQ_ENTRY(device_config) next;
2207 };
2208
2209 static QTAILQ_HEAD(, device_config) device_configs =
2210 QTAILQ_HEAD_INITIALIZER(device_configs);
2211
2212 static void add_device_config(int type, const char *cmdline)
2213 {
2214 struct device_config *conf;
2215
2216 conf = g_malloc0(sizeof(*conf));
2217 conf->type = type;
2218 conf->cmdline = cmdline;
2219 loc_save(&conf->loc);
2220 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2221 }
2222
2223 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2224 {
2225 struct device_config *conf;
2226 int rc;
2227
2228 QTAILQ_FOREACH(conf, &device_configs, next) {
2229 if (conf->type != type)
2230 continue;
2231 loc_push_restore(&conf->loc);
2232 rc = func(conf->cmdline);
2233 loc_pop(&conf->loc);
2234 if (rc) {
2235 return rc;
2236 }
2237 }
2238 return 0;
2239 }
2240
2241 static int serial_parse(const char *devname)
2242 {
2243 int index = num_serial_hds;
2244 char label[32];
2245
2246 if (strcmp(devname, "none") == 0)
2247 return 0;
2248 snprintf(label, sizeof(label), "serial%d", index);
2249 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2250
2251 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2252 if (!serial_hds[index]) {
2253 error_report("could not connect serial device"
2254 " to character backend '%s'", devname);
2255 return -1;
2256 }
2257 num_serial_hds++;
2258 return 0;
2259 }
2260
2261 Chardev *serial_hd(int i)
2262 {
2263 assert(i >= 0);
2264 if (i < num_serial_hds) {
2265 return serial_hds[i];
2266 }
2267 return NULL;
2268 }
2269
2270 int serial_max_hds(void)
2271 {
2272 return num_serial_hds;
2273 }
2274
2275 static int parallel_parse(const char *devname)
2276 {
2277 static int index = 0;
2278 char label[32];
2279
2280 if (strcmp(devname, "none") == 0)
2281 return 0;
2282 if (index == MAX_PARALLEL_PORTS) {
2283 error_report("too many parallel ports");
2284 exit(1);
2285 }
2286 snprintf(label, sizeof(label), "parallel%d", index);
2287 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2288 if (!parallel_hds[index]) {
2289 error_report("could not connect parallel device"
2290 " to character backend '%s'", devname);
2291 return -1;
2292 }
2293 index++;
2294 return 0;
2295 }
2296
2297 static int debugcon_parse(const char *devname)
2298 {
2299 QemuOpts *opts;
2300
2301 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2302 error_report("invalid character backend '%s'", devname);
2303 exit(1);
2304 }
2305 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2306 if (!opts) {
2307 error_report("already have a debugcon device");
2308 exit(1);
2309 }
2310 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2311 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2312 return 0;
2313 }
2314
2315 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2316 {
2317 const MachineClass *mc1 = a, *mc2 = b;
2318 int res;
2319
2320 if (mc1->family == NULL) {
2321 if (mc2->family == NULL) {
2322 /* Compare standalone machine types against each other; they sort
2323 * in increasing order.
2324 */
2325 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2326 object_class_get_name(OBJECT_CLASS(mc2)));
2327 }
2328
2329 /* Standalone machine types sort after families. */
2330 return 1;
2331 }
2332
2333 if (mc2->family == NULL) {
2334 /* Families sort before standalone machine types. */
2335 return -1;
2336 }
2337
2338 /* Families sort between each other alphabetically increasingly. */
2339 res = strcmp(mc1->family, mc2->family);
2340 if (res != 0) {
2341 return res;
2342 }
2343
2344 /* Within the same family, machine types sort in decreasing order. */
2345 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2346 object_class_get_name(OBJECT_CLASS(mc1)));
2347 }
2348
2349 static MachineClass *machine_parse(const char *name, GSList *machines)
2350 {
2351 MachineClass *mc;
2352 GSList *el;
2353
2354 if (is_help_option(name)) {
2355 printf("Supported machines are:\n");
2356 machines = g_slist_sort(machines, machine_class_cmp);
2357 for (el = machines; el; el = el->next) {
2358 MachineClass *mc = el->data;
2359 if (mc->alias) {
2360 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2361 }
2362 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2363 mc->is_default ? " (default)" : "",
2364 mc->deprecation_reason ? " (deprecated)" : "");
2365 }
2366 exit(0);
2367 }
2368
2369 mc = find_machine(name, machines);
2370 if (!mc) {
2371 error_report("unsupported machine type");
2372 error_printf("Use -machine help to list supported machines\n");
2373 exit(1);
2374 }
2375 return mc;
2376 }
2377
2378 void qemu_add_exit_notifier(Notifier *notify)
2379 {
2380 notifier_list_add(&exit_notifiers, notify);
2381 }
2382
2383 void qemu_remove_exit_notifier(Notifier *notify)
2384 {
2385 notifier_remove(notify);
2386 }
2387
2388 static void qemu_run_exit_notifiers(void)
2389 {
2390 notifier_list_notify(&exit_notifiers, NULL);
2391 }
2392
2393 static const char *pid_file;
2394 static Notifier qemu_unlink_pidfile_notifier;
2395
2396 static void qemu_unlink_pidfile(Notifier *n, void *data)
2397 {
2398 if (pid_file) {
2399 unlink(pid_file);
2400 }
2401 }
2402
2403 bool machine_init_done;
2404
2405 void qemu_add_machine_init_done_notifier(Notifier *notify)
2406 {
2407 notifier_list_add(&machine_init_done_notifiers, notify);
2408 if (machine_init_done) {
2409 notify->notify(notify, NULL);
2410 }
2411 }
2412
2413 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2414 {
2415 notifier_remove(notify);
2416 }
2417
2418 static void qemu_run_machine_init_done_notifiers(void)
2419 {
2420 machine_init_done = true;
2421 notifier_list_notify(&machine_init_done_notifiers, NULL);
2422 }
2423
2424 static const QEMUOption *lookup_opt(int argc, char **argv,
2425 const char **poptarg, int *poptind)
2426 {
2427 const QEMUOption *popt;
2428 int optind = *poptind;
2429 char *r = argv[optind];
2430 const char *optarg;
2431
2432 loc_set_cmdline(argv, optind, 1);
2433 optind++;
2434 /* Treat --foo the same as -foo. */
2435 if (r[1] == '-')
2436 r++;
2437 popt = qemu_options;
2438 for(;;) {
2439 if (!popt->name) {
2440 error_report("invalid option");
2441 exit(1);
2442 }
2443 if (!strcmp(popt->name, r + 1))
2444 break;
2445 popt++;
2446 }
2447 if (popt->flags & HAS_ARG) {
2448 if (optind >= argc) {
2449 error_report("requires an argument");
2450 exit(1);
2451 }
2452 optarg = argv[optind++];
2453 loc_set_cmdline(argv, optind - 2, 2);
2454 } else {
2455 optarg = NULL;
2456 }
2457
2458 *poptarg = optarg;
2459 *poptind = optind;
2460
2461 return popt;
2462 }
2463
2464 static MachineClass *select_machine(void)
2465 {
2466 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2467 MachineClass *machine_class = find_default_machine(machines);
2468 const char *optarg;
2469 QemuOpts *opts;
2470 Location loc;
2471
2472 loc_push_none(&loc);
2473
2474 opts = qemu_get_machine_opts();
2475 qemu_opts_loc_restore(opts);
2476
2477 optarg = qemu_opt_get(opts, "type");
2478 if (optarg) {
2479 machine_class = machine_parse(optarg, machines);
2480 }
2481
2482 if (!machine_class) {
2483 error_report("No machine specified, and there is no default");
2484 error_printf("Use -machine help to list supported machines\n");
2485 exit(1);
2486 }
2487
2488 loc_pop(&loc);
2489 g_slist_free(machines);
2490 return machine_class;
2491 }
2492
2493 static int machine_set_property(void *opaque,
2494 const char *name, const char *value,
2495 Error **errp)
2496 {
2497 Object *obj = OBJECT(opaque);
2498 Error *local_err = NULL;
2499 char *p, *qom_name;
2500
2501 if (strcmp(name, "type") == 0) {
2502 return 0;
2503 }
2504
2505 qom_name = g_strdup(name);
2506 for (p = qom_name; *p; p++) {
2507 if (*p == '_') {
2508 *p = '-';
2509 }
2510 }
2511
2512 object_property_parse(obj, value, qom_name, &local_err);
2513 g_free(qom_name);
2514
2515 if (local_err) {
2516 error_propagate(errp, local_err);
2517 return -1;
2518 }
2519
2520 return 0;
2521 }
2522
2523
2524 /*
2525 * Initial object creation happens before all other
2526 * QEMU data types are created. The majority of objects
2527 * can be created at this point. The rng-egd object
2528 * cannot be created here, as it depends on the chardev
2529 * already existing.
2530 */
2531 static bool object_create_initial(const char *type, QemuOpts *opts)
2532 {
2533 if (user_creatable_print_help(type, opts)) {
2534 exit(0);
2535 }
2536
2537 /*
2538 * Objects should not be made "delayed" without a reason. If you
2539 * add one, state the reason in a comment!
2540 */
2541
2542 /* Reason: rng-egd property "chardev" */
2543 if (g_str_equal(type, "rng-egd")) {
2544 return false;
2545 }
2546
2547 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2548 /* Reason: cryptodev-vhost-user property "chardev" */
2549 if (g_str_equal(type, "cryptodev-vhost-user")) {
2550 return false;
2551 }
2552 #endif
2553
2554 /*
2555 * Reason: filter-* property "netdev" etc.
2556 */
2557 if (g_str_equal(type, "filter-buffer") ||
2558 g_str_equal(type, "filter-dump") ||
2559 g_str_equal(type, "filter-mirror") ||
2560 g_str_equal(type, "filter-redirector") ||
2561 g_str_equal(type, "colo-compare") ||
2562 g_str_equal(type, "filter-rewriter") ||
2563 g_str_equal(type, "filter-replay")) {
2564 return false;
2565 }
2566
2567 /* Memory allocation by backends needs to be done
2568 * after configure_accelerator() (due to the tcg_enabled()
2569 * checks at memory_region_init_*()).
2570 *
2571 * Also, allocation of large amounts of memory may delay
2572 * chardev initialization for too long, and trigger timeouts
2573 * on software that waits for a monitor socket to be created
2574 * (e.g. libvirt).
2575 */
2576 if (g_str_has_prefix(type, "memory-backend-")) {
2577 return false;
2578 }
2579
2580 return true;
2581 }
2582
2583
2584 /*
2585 * The remainder of object creation happens after the
2586 * creation of chardev, fsdev, net clients and device data types.
2587 */
2588 static bool object_create_delayed(const char *type, QemuOpts *opts)
2589 {
2590 return !object_create_initial(type, opts);
2591 }
2592
2593
2594 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2595 MachineClass *mc)
2596 {
2597 uint64_t sz;
2598 const char *mem_str;
2599 const ram_addr_t default_ram_size = mc->default_ram_size;
2600 QemuOpts *opts = qemu_find_opts_singleton("memory");
2601 Location loc;
2602
2603 loc_push_none(&loc);
2604 qemu_opts_loc_restore(opts);
2605
2606 sz = 0;
2607 mem_str = qemu_opt_get(opts, "size");
2608 if (mem_str) {
2609 if (!*mem_str) {
2610 error_report("missing 'size' option value");
2611 exit(EXIT_FAILURE);
2612 }
2613
2614 sz = qemu_opt_get_size(opts, "size", ram_size);
2615
2616 /* Fix up legacy suffix-less format */
2617 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2618 uint64_t overflow_check = sz;
2619
2620 sz *= MiB;
2621 if (sz / MiB != overflow_check) {
2622 error_report("too large 'size' option value");
2623 exit(EXIT_FAILURE);
2624 }
2625 }
2626 }
2627
2628 /* backward compatibility behaviour for case "-m 0" */
2629 if (sz == 0) {
2630 sz = default_ram_size;
2631 }
2632
2633 sz = QEMU_ALIGN_UP(sz, 8192);
2634 ram_size = sz;
2635 if (ram_size != sz) {
2636 error_report("ram size too large");
2637 exit(EXIT_FAILURE);
2638 }
2639
2640 /* store value for the future use */
2641 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2642 *maxram_size = ram_size;
2643
2644 if (qemu_opt_get(opts, "maxmem")) {
2645 uint64_t slots;
2646
2647 sz = qemu_opt_get_size(opts, "maxmem", 0);
2648 slots = qemu_opt_get_number(opts, "slots", 0);
2649 if (sz < ram_size) {
2650 error_report("invalid value of -m option maxmem: "
2651 "maximum memory size (0x%" PRIx64 ") must be at least "
2652 "the initial memory size (0x" RAM_ADDR_FMT ")",
2653 sz, ram_size);
2654 exit(EXIT_FAILURE);
2655 } else if (slots && sz == ram_size) {
2656 error_report("invalid value of -m option maxmem: "
2657 "memory slots were specified but maximum memory size "
2658 "(0x%" PRIx64 ") is equal to the initial memory size "
2659 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2660 exit(EXIT_FAILURE);
2661 }
2662
2663 *maxram_size = sz;
2664 *ram_slots = slots;
2665 } else if (qemu_opt_get(opts, "slots")) {
2666 error_report("invalid -m option value: missing 'maxmem' option");
2667 exit(EXIT_FAILURE);
2668 }
2669
2670 loc_pop(&loc);
2671 }
2672
2673 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2674 {
2675 GlobalProperty *g;
2676
2677 g = g_malloc0(sizeof(*g));
2678 g->driver = qemu_opt_get(opts, "driver");
2679 g->property = qemu_opt_get(opts, "property");
2680 g->value = qemu_opt_get(opts, "value");
2681 qdev_prop_register_global(g);
2682 return 0;
2683 }
2684
2685 static int qemu_read_default_config_file(void)
2686 {
2687 int ret;
2688
2689 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2690 if (ret < 0 && ret != -ENOENT) {
2691 return ret;
2692 }
2693
2694 return 0;
2695 }
2696
2697 static void user_register_global_props(void)
2698 {
2699 qemu_opts_foreach(qemu_find_opts("global"),
2700 global_init_func, NULL, NULL);
2701 }
2702
2703 int main(int argc, char **argv, char **envp)
2704 {
2705 int i;
2706 int snapshot, linux_boot;
2707 const char *initrd_filename;
2708 const char *kernel_filename, *kernel_cmdline;
2709 const char *boot_order = NULL;
2710 const char *boot_once = NULL;
2711 DisplayState *ds;
2712 QemuOpts *opts, *machine_opts;
2713 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2714 QemuOptsList *olist;
2715 int optind;
2716 const char *optarg;
2717 const char *loadvm = NULL;
2718 MachineClass *machine_class;
2719 const char *cpu_option;
2720 const char *vga_model = NULL;
2721 const char *qtest_chrdev = NULL;
2722 const char *qtest_log = NULL;
2723 const char *incoming = NULL;
2724 bool userconfig = true;
2725 bool nographic = false;
2726 int display_remote = 0;
2727 const char *log_mask = NULL;
2728 const char *log_file = NULL;
2729 char *trace_file = NULL;
2730 ram_addr_t maxram_size;
2731 uint64_t ram_slots = 0;
2732 FILE *vmstate_dump_file = NULL;
2733 Error *main_loop_err = NULL;
2734 Error *err = NULL;
2735 bool list_data_dirs = false;
2736 char *dir, **dirs;
2737 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2738 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2739
2740 os_set_line_buffering();
2741
2742 error_init(argv[0]);
2743 module_call_init(MODULE_INIT_TRACE);
2744
2745 qemu_init_cpu_list();
2746 qemu_init_cpu_loop();
2747
2748 qemu_mutex_lock_iothread();
2749
2750 atexit(qemu_run_exit_notifiers);
2751 qemu_init_exec_dir(argv[0]);
2752
2753 module_call_init(MODULE_INIT_QOM);
2754
2755 qemu_add_opts(&qemu_drive_opts);
2756 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2757 qemu_add_drive_opts(&qemu_common_drive_opts);
2758 qemu_add_drive_opts(&qemu_drive_opts);
2759 qemu_add_drive_opts(&bdrv_runtime_opts);
2760 qemu_add_opts(&qemu_chardev_opts);
2761 qemu_add_opts(&qemu_device_opts);
2762 qemu_add_opts(&qemu_netdev_opts);
2763 qemu_add_opts(&qemu_nic_opts);
2764 qemu_add_opts(&qemu_net_opts);
2765 qemu_add_opts(&qemu_rtc_opts);
2766 qemu_add_opts(&qemu_global_opts);
2767 qemu_add_opts(&qemu_mon_opts);
2768 qemu_add_opts(&qemu_trace_opts);
2769 qemu_plugin_add_opts();
2770 qemu_add_opts(&qemu_option_rom_opts);
2771 qemu_add_opts(&qemu_machine_opts);
2772 qemu_add_opts(&qemu_accel_opts);
2773 qemu_add_opts(&qemu_mem_opts);
2774 qemu_add_opts(&qemu_smp_opts);
2775 qemu_add_opts(&qemu_boot_opts);
2776 qemu_add_opts(&qemu_add_fd_opts);
2777 qemu_add_opts(&qemu_object_opts);
2778 qemu_add_opts(&qemu_tpmdev_opts);
2779 qemu_add_opts(&qemu_realtime_opts);
2780 qemu_add_opts(&qemu_overcommit_opts);
2781 qemu_add_opts(&qemu_msg_opts);
2782 qemu_add_opts(&qemu_name_opts);
2783 qemu_add_opts(&qemu_numa_opts);
2784 qemu_add_opts(&qemu_icount_opts);
2785 qemu_add_opts(&qemu_semihosting_config_opts);
2786 qemu_add_opts(&qemu_fw_cfg_opts);
2787 module_call_init(MODULE_INIT_OPTS);
2788
2789 runstate_init();
2790 precopy_infrastructure_init();
2791 postcopy_infrastructure_init();
2792 monitor_init_globals();
2793
2794 if (qcrypto_init(&err) < 0) {
2795 error_reportf_err(err, "cannot initialize crypto: ");
2796 exit(1);
2797 }
2798
2799 QTAILQ_INIT(&vm_change_state_head);
2800 os_setup_early_signal_handling();
2801
2802 cpu_option = NULL;
2803 snapshot = 0;
2804
2805 nb_nics = 0;
2806
2807 bdrv_init_with_whitelist();
2808
2809 autostart = 1;
2810
2811 /* first pass of option parsing */
2812 optind = 1;
2813 while (optind < argc) {
2814 if (argv[optind][0] != '-') {
2815 /* disk image */
2816 optind++;
2817 } else {
2818 const QEMUOption *popt;
2819
2820 popt = lookup_opt(argc, argv, &optarg, &optind);
2821 switch (popt->index) {
2822 case QEMU_OPTION_nouserconfig:
2823 userconfig = false;
2824 break;
2825 }
2826 }
2827 }
2828
2829 if (userconfig) {
2830 if (qemu_read_default_config_file() < 0) {
2831 exit(1);
2832 }
2833 }
2834
2835 /* second pass of option parsing */
2836 optind = 1;
2837 for(;;) {
2838 if (optind >= argc)
2839 break;
2840 if (argv[optind][0] != '-') {
2841 loc_set_cmdline(argv, optind, 1);
2842 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2843 } else {
2844 const QEMUOption *popt;
2845
2846 popt = lookup_opt(argc, argv, &optarg, &optind);
2847 if (!(popt->arch_mask & arch_type)) {
2848 error_report("Option not supported for this target");
2849 exit(1);
2850 }
2851 switch(popt->index) {
2852 case QEMU_OPTION_cpu:
2853 /* hw initialization will check this */
2854 cpu_option = optarg;
2855 break;
2856 case QEMU_OPTION_hda:
2857 case QEMU_OPTION_hdb:
2858 case QEMU_OPTION_hdc:
2859 case QEMU_OPTION_hdd:
2860 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2861 HD_OPTS);
2862 break;
2863 case QEMU_OPTION_blockdev:
2864 {
2865 Visitor *v;
2866 BlockdevOptionsQueueEntry *bdo;
2867
2868 v = qobject_input_visitor_new_str(optarg, "driver",
2869 &error_fatal);
2870
2871 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2872 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2873 &error_fatal);
2874 visit_free(v);
2875 loc_save(&bdo->loc);
2876 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2877 break;
2878 }
2879 case QEMU_OPTION_drive:
2880 if (drive_def(optarg) == NULL) {
2881 exit(1);
2882 }
2883 break;
2884 case QEMU_OPTION_set:
2885 if (qemu_set_option(optarg) != 0)
2886 exit(1);
2887 break;
2888 case QEMU_OPTION_global:
2889 if (qemu_global_option(optarg) != 0)
2890 exit(1);
2891 break;
2892 case QEMU_OPTION_mtdblock:
2893 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2894 break;
2895 case QEMU_OPTION_sd:
2896 drive_add(IF_SD, -1, optarg, SD_OPTS);
2897 break;
2898 case QEMU_OPTION_pflash:
2899 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2900 break;
2901 case QEMU_OPTION_snapshot:
2902 {
2903 Error *blocker = NULL;
2904 snapshot = 1;
2905 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
2906 "-snapshot");
2907 replay_add_blocker(blocker);
2908 }
2909 break;
2910 case QEMU_OPTION_numa:
2911 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2912 optarg, true);
2913 if (!opts) {
2914 exit(1);
2915 }
2916 break;
2917 case QEMU_OPTION_display:
2918 parse_display(optarg);
2919 break;
2920 case QEMU_OPTION_nographic:
2921 olist = qemu_find_opts("machine");
2922 qemu_opts_parse_noisily(olist, "graphics=off", false);
2923 nographic = true;
2924 dpy.type = DISPLAY_TYPE_NONE;
2925 break;
2926 case QEMU_OPTION_curses:
2927 #ifdef CONFIG_CURSES
2928 dpy.type = DISPLAY_TYPE_CURSES;
2929 #else
2930 error_report("curses or iconv support is disabled");
2931 exit(1);
2932 #endif
2933 break;
2934 case QEMU_OPTION_portrait:
2935 graphic_rotate = 90;
2936 break;
2937 case QEMU_OPTION_rotate:
2938 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2939 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2940 graphic_rotate != 180 && graphic_rotate != 270) {
2941 error_report("only 90, 180, 270 deg rotation is available");
2942 exit(1);
2943 }
2944 break;
2945 case QEMU_OPTION_kernel:
2946 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
2947 &error_abort);
2948 break;
2949 case QEMU_OPTION_initrd:
2950 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
2951 &error_abort);
2952 break;
2953 case QEMU_OPTION_append:
2954 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
2955 &error_abort);
2956 break;
2957 case QEMU_OPTION_dtb:
2958 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
2959 &error_abort);
2960 break;
2961 case QEMU_OPTION_cdrom:
2962 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2963 break;
2964 case QEMU_OPTION_boot:
2965 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
2966 optarg, true);
2967 if (!opts) {
2968 exit(1);
2969 }
2970 break;
2971 case QEMU_OPTION_fda:
2972 case QEMU_OPTION_fdb:
2973 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2974 optarg, FD_OPTS);
2975 break;
2976 case QEMU_OPTION_no_fd_bootchk:
2977 fd_bootchk = 0;
2978 break;
2979 case QEMU_OPTION_netdev:
2980 default_net = 0;
2981 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2982 exit(1);
2983 }
2984 break;
2985 case QEMU_OPTION_nic:
2986 default_net = 0;
2987 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
2988 exit(1);
2989 }
2990 break;
2991 case QEMU_OPTION_net:
2992 default_net = 0;
2993 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2994 exit(1);
2995 }
2996 break;
2997 #ifdef CONFIG_LIBISCSI
2998 case QEMU_OPTION_iscsi:
2999 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3000 optarg, false);
3001 if (!opts) {
3002 exit(1);
3003 }
3004 break;
3005 #endif
3006 case QEMU_OPTION_audio_help:
3007 audio_legacy_help();
3008 exit (0);
3009 break;
3010 case QEMU_OPTION_audiodev:
3011 audio_parse_option(optarg);
3012 break;
3013 case QEMU_OPTION_soundhw:
3014 select_soundhw (optarg);
3015 break;
3016 case QEMU_OPTION_h:
3017 help(0);
3018 break;
3019 case QEMU_OPTION_version:
3020 version();
3021 exit(0);
3022 break;
3023 case QEMU_OPTION_m:
3024 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3025 optarg, true);
3026 if (!opts) {
3027 exit(EXIT_FAILURE);
3028 }
3029 break;
3030 #ifdef CONFIG_TPM
3031 case QEMU_OPTION_tpmdev:
3032 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3033 exit(1);
3034 }
3035 break;
3036 #endif
3037 case QEMU_OPTION_mempath:
3038 mem_path = optarg;
3039 break;
3040 case QEMU_OPTION_mem_prealloc:
3041 mem_prealloc = 1;
3042 break;
3043 case QEMU_OPTION_d:
3044 log_mask = optarg;
3045 break;
3046 case QEMU_OPTION_D:
3047 log_file = optarg;
3048 break;
3049 case QEMU_OPTION_DFILTER:
3050 qemu_set_dfilter_ranges(optarg, &error_fatal);
3051 break;
3052 case QEMU_OPTION_seed:
3053 qemu_guest_random_seed_main(optarg, &error_fatal);
3054 break;
3055 case QEMU_OPTION_s:
3056 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3057 break;
3058 case QEMU_OPTION_gdb:
3059 add_device_config(DEV_GDB, optarg);
3060 break;
3061 case QEMU_OPTION_L:
3062 if (is_help_option(optarg)) {
3063 list_data_dirs = true;
3064 } else {
3065 qemu_add_data_dir(optarg);
3066 }
3067 break;
3068 case QEMU_OPTION_bios:
3069 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3070 &error_abort);
3071 break;
3072 case QEMU_OPTION_singlestep:
3073 singlestep = 1;
3074 break;
3075 case QEMU_OPTION_S:
3076 autostart = 0;
3077 break;
3078 case QEMU_OPTION_k:
3079 keyboard_layout = optarg;
3080 break;
3081 case QEMU_OPTION_vga:
3082 vga_model = optarg;
3083 default_vga = 0;
3084 break;
3085 case QEMU_OPTION_g:
3086 {
3087 const char *p;
3088 int w, h, depth;
3089 p = optarg;
3090 w = strtol(p, (char **)&p, 10);
3091 if (w <= 0) {
3092 graphic_error:
3093 error_report("invalid resolution or depth");
3094 exit(1);
3095 }
3096 if (*p != 'x')
3097 goto graphic_error;
3098 p++;
3099 h = strtol(p, (char **)&p, 10);
3100 if (h <= 0)
3101 goto graphic_error;
3102 if (*p == 'x') {
3103 p++;
3104 depth = strtol(p, (char **)&p, 10);
3105 if (depth != 1 && depth != 2 && depth != 4 &&
3106 depth != 8 && depth != 15 && depth != 16 &&
3107 depth != 24 && depth != 32)
3108 goto graphic_error;
3109 } else if (*p == '\0') {
3110 depth = graphic_depth;
3111 } else {
3112 goto graphic_error;
3113 }
3114
3115 graphic_width = w;
3116 graphic_height = h;
3117 graphic_depth = depth;
3118 }
3119 break;
3120 case QEMU_OPTION_echr:
3121 {
3122 char *r;
3123 term_escape_char = strtol(optarg, &r, 0);
3124 if (r == optarg)
3125 printf("Bad argument to echr\n");
3126 break;
3127 }
3128 case QEMU_OPTION_monitor:
3129 default_monitor = 0;
3130 if (strncmp(optarg, "none", 4)) {
3131 monitor_parse(optarg, "readline", false);
3132 }
3133 break;
3134 case QEMU_OPTION_qmp:
3135 monitor_parse(optarg, "control", false);
3136 default_monitor = 0;
3137 break;
3138 case QEMU_OPTION_qmp_pretty:
3139 monitor_parse(optarg, "control", true);
3140 default_monitor = 0;
3141 break;
3142 case QEMU_OPTION_mon:
3143 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3144 true);
3145 if (!opts) {
3146 exit(1);
3147 }
3148 default_monitor = 0;
3149 break;
3150 case QEMU_OPTION_chardev:
3151 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3152 optarg, true);
3153 if (!opts) {
3154 exit(1);
3155 }
3156 break;
3157 case QEMU_OPTION_fsdev:
3158 olist = qemu_find_opts("fsdev");
3159 if (!olist) {
3160 error_report("fsdev support is disabled");
3161 exit(1);
3162 }
3163 opts = qemu_opts_parse_noisily(olist, optarg, true);
3164 if (!opts) {
3165 exit(1);
3166 }
3167 break;
3168 case QEMU_OPTION_virtfs: {
3169 QemuOpts *fsdev;
3170 QemuOpts *device;
3171 const char *writeout, *sock_fd, *socket, *path, *security_model,
3172 *multidevs;
3173
3174 olist = qemu_find_opts("virtfs");
3175 if (!olist) {
3176 error_report("virtfs support is disabled");
3177 exit(1);
3178 }
3179 opts = qemu_opts_parse_noisily(olist, optarg, true);
3180 if (!opts) {
3181 exit(1);
3182 }
3183
3184 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3185 qemu_opt_get(opts, "mount_tag") == NULL) {
3186 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3187 exit(1);
3188 }
3189 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3190 qemu_opts_id(opts) ?:
3191 qemu_opt_get(opts, "mount_tag"),
3192 1, NULL);
3193 if (!fsdev) {
3194 error_report("duplicate or invalid fsdev id: %s",
3195 qemu_opt_get(opts, "mount_tag"));
3196 exit(1);
3197 }
3198
3199 writeout = qemu_opt_get(opts, "writeout");
3200 if (writeout) {
3201 #ifdef CONFIG_SYNC_FILE_RANGE
3202 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3203 #else
3204 error_report("writeout=immediate not supported "
3205 "on this platform");
3206 exit(1);
3207 #endif
3208 }
3209 qemu_opt_set(fsdev, "fsdriver",
3210 qemu_opt_get(opts, "fsdriver"), &error_abort);
3211 path = qemu_opt_get(opts, "path");
3212 if (path) {
3213 qemu_opt_set(fsdev, "path", path, &error_abort);
3214 }
3215 security_model = qemu_opt_get(opts, "security_model");
3216 if (security_model) {
3217 qemu_opt_set(fsdev, "security_model", security_model,
3218 &error_abort);
3219 }
3220 socket = qemu_opt_get(opts, "socket");
3221 if (socket) {
3222 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3223 }
3224 sock_fd = qemu_opt_get(opts, "sock_fd");
3225 if (sock_fd) {
3226 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3227 }
3228
3229 qemu_opt_set_bool(fsdev, "readonly",
3230 qemu_opt_get_bool(opts, "readonly", 0),
3231 &error_abort);
3232 multidevs = qemu_opt_get(opts, "multidevs");
3233 if (multidevs) {
3234 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3235 }
3236 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3237 &error_abort);
3238 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3239 qemu_opt_set(device, "fsdev",
3240 qemu_opts_id(fsdev), &error_abort);
3241 qemu_opt_set(device, "mount_tag",
3242 qemu_opt_get(opts, "mount_tag"), &error_abort);
3243 break;
3244 }
3245 case QEMU_OPTION_serial:
3246 add_device_config(DEV_SERIAL, optarg);
3247 default_serial = 0;
3248 if (strncmp(optarg, "mon:", 4) == 0) {
3249 default_monitor = 0;
3250 }
3251 break;
3252 case QEMU_OPTION_watchdog:
3253 if (watchdog) {
3254 error_report("only one watchdog option may be given");
3255 return 1;
3256 }
3257 watchdog = optarg;
3258 break;
3259 case QEMU_OPTION_watchdog_action:
3260 if (select_watchdog_action(optarg) == -1) {
3261 error_report("unknown -watchdog-action parameter");
3262 exit(1);
3263 }
3264 break;
3265 case QEMU_OPTION_parallel:
3266 add_device_config(DEV_PARALLEL, optarg);
3267 default_parallel = 0;
3268 if (strncmp(optarg, "mon:", 4) == 0) {
3269 default_monitor = 0;
3270 }
3271 break;
3272 case QEMU_OPTION_debugcon:
3273 add_device_config(DEV_DEBUGCON, optarg);
3274 break;
3275 case QEMU_OPTION_loadvm:
3276 loadvm = optarg;
3277 break;
3278 case QEMU_OPTION_full_screen:
3279 dpy.has_full_screen = true;
3280 dpy.full_screen = true;
3281 break;
3282 case QEMU_OPTION_alt_grab:
3283 alt_grab = 1;
3284 break;
3285 case QEMU_OPTION_ctrl_grab:
3286 ctrl_grab = 1;
3287 break;
3288 case QEMU_OPTION_no_quit:
3289 dpy.has_window_close = true;
3290 dpy.window_close = false;
3291 break;
3292 case QEMU_OPTION_sdl:
3293 #ifdef CONFIG_SDL
3294 dpy.type = DISPLAY_TYPE_SDL;
3295 break;
3296 #else
3297 error_report("SDL support is disabled");
3298 exit(1);
3299 #endif
3300 case QEMU_OPTION_pidfile:
3301 pid_file = optarg;
3302 break;
3303 case QEMU_OPTION_win2k_hack:
3304 win2k_install_hack = 1;
3305 break;
3306 case QEMU_OPTION_acpitable:
3307 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3308 optarg, true);
3309 if (!opts) {
3310 exit(1);
3311 }
3312 acpi_table_add(opts, &error_fatal);
3313 break;
3314 case QEMU_OPTION_smbios:
3315 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3316 optarg, false);
3317 if (!opts) {
3318 exit(1);
3319 }
3320 smbios_entry_add(opts, &error_fatal);
3321 break;
3322 case QEMU_OPTION_fwcfg:
3323 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3324 optarg, true);
3325 if (opts == NULL) {
3326 exit(1);
3327 }
3328 break;
3329 case QEMU_OPTION_preconfig:
3330 preconfig_exit_requested = false;
3331 break;
3332 case QEMU_OPTION_enable_kvm:
3333 olist = qemu_find_opts("machine");
3334 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3335 break;
3336 case QEMU_OPTION_M:
3337 case QEMU_OPTION_machine:
3338 olist = qemu_find_opts("machine");
3339 opts = qemu_opts_parse_noisily(olist, optarg, true);
3340 if (!opts) {
3341 exit(1);
3342 }
3343 break;
3344 case QEMU_OPTION_no_kvm:
3345 olist = qemu_find_opts("machine");
3346 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3347 break;
3348 case QEMU_OPTION_accel:
3349 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3350 optarg, true);
3351 optarg = qemu_opt_get(accel_opts, "accel");
3352 if (!optarg || is_help_option(optarg)) {
3353 printf("Accelerators supported in QEMU binary:\n");
3354 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3355 false);
3356 for (el = accel_list; el; el = el->next) {
3357 gchar *typename = g_strdup(object_class_get_name(
3358 OBJECT_CLASS(el->data)));
3359 /* omit qtest which is used for tests only */
3360 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3361 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3362 gchar **optname = g_strsplit(typename,
3363 ACCEL_CLASS_SUFFIX, 0);
3364 printf("%s\n", optname[0]);
3365 g_free(optname);
3366 }
3367 g_free(typename);
3368 }
3369 g_slist_free(accel_list);
3370 exit(0);
3371 }
3372 if (optarg && strchr(optarg, ':')) {
3373 error_report("Don't use ':' with -accel, "
3374 "use -M accel=... for now instead");
3375 exit(1);
3376 }
3377 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3378 false, &error_abort);
3379 qemu_opt_set(opts, "accel", optarg, &error_abort);
3380 break;
3381 case QEMU_OPTION_usb:
3382 olist = qemu_find_opts("machine");
3383 qemu_opts_parse_noisily(olist, "usb=on", false);
3384 break;
3385 case QEMU_OPTION_usbdevice:
3386 error_report("'-usbdevice' is deprecated, please use "
3387 "'-device usb-...' instead");
3388 olist = qemu_find_opts("machine");
3389 qemu_opts_parse_noisily(olist, "usb=on", false);
3390 add_device_config(DEV_USB, optarg);
3391 break;
3392 case QEMU_OPTION_device:
3393 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3394 optarg, true)) {
3395 exit(1);
3396 }
3397 break;
3398 case QEMU_OPTION_smp:
3399 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3400 optarg, true)) {
3401 exit(1);
3402 }
3403 break;
3404 case QEMU_OPTION_vnc:
3405 vnc_parse(optarg, &error_fatal);
3406 break;
3407 case QEMU_OPTION_no_acpi:
3408 acpi_enabled = 0;
3409 break;
3410 case QEMU_OPTION_no_hpet:
3411 no_hpet = 1;
3412 break;
3413 case QEMU_OPTION_no_reboot:
3414 no_reboot = 1;
3415 break;
3416 case QEMU_OPTION_no_shutdown:
3417 no_shutdown = 1;
3418 break;
3419 case QEMU_OPTION_show_cursor:
3420 cursor_hide = 0;
3421 break;
3422 case QEMU_OPTION_uuid:
3423 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3424 error_report("failed to parse UUID string: wrong format");
3425 exit(1);
3426 }
3427 qemu_uuid_set = true;
3428 break;
3429 case QEMU_OPTION_option_rom:
3430 if (nb_option_roms >= MAX_OPTION_ROMS) {
3431 error_report("too many option ROMs");
3432 exit(1);
3433 }
3434 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3435 optarg, true);
3436 if (!opts) {
3437 exit(1);
3438 }
3439 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3440 option_rom[nb_option_roms].bootindex =
3441 qemu_opt_get_number(opts, "bootindex", -1);
3442 if (!option_rom[nb_option_roms].name) {
3443 error_report("Option ROM file is not specified");
3444 exit(1);
3445 }
3446 nb_option_roms++;
3447 break;
3448 case QEMU_OPTION_semihosting:
3449 qemu_semihosting_enable();
3450 break;
3451 case QEMU_OPTION_semihosting_config:
3452 if (qemu_semihosting_config_options(optarg) != 0) {
3453 exit(1);
3454 }
3455 break;
3456 case QEMU_OPTION_name:
3457 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3458 optarg, true);
3459 if (!opts) {
3460 exit(1);
3461 }
3462 break;
3463 case QEMU_OPTION_prom_env:
3464 if (nb_prom_envs >= MAX_PROM_ENVS) {
3465 error_report("too many prom variables");
3466 exit(1);
3467 }
3468 prom_envs[nb_prom_envs] = optarg;
3469 nb_prom_envs++;
3470 break;
3471 case QEMU_OPTION_old_param:
3472 old_param = 1;
3473 break;
3474 case QEMU_OPTION_rtc:
3475 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3476 false);
3477 if (!opts) {
3478 exit(1);
3479 }
3480 break;
3481 case QEMU_OPTION_tb_size:
3482 #ifndef CONFIG_TCG
3483 error_report("TCG is disabled");
3484 exit(1);
3485 #endif
3486 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3487 error_report("Invalid argument to -tb-size");
3488 exit(1);
3489 }
3490 break;
3491 case QEMU_OPTION_icount:
3492 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3493 optarg, true);
3494 if (!icount_opts) {
3495 exit(1);
3496 }
3497 break;
3498 case QEMU_OPTION_incoming:
3499 if (!incoming) {
3500 runstate_set(RUN_STATE_INMIGRATE);
3501 }
3502 incoming = optarg;
3503 break;
3504 case QEMU_OPTION_only_migratable:
3505 only_migratable = 1;
3506 break;
3507 case QEMU_OPTION_nodefaults:
3508 has_defaults = 0;
3509 break;
3510 case QEMU_OPTION_xen_domid:
3511 if (!(xen_available())) {
3512 error_report("Option not supported for this target");
3513 exit(1);
3514 }
3515 xen_domid = atoi(optarg);
3516 break;
3517 case QEMU_OPTION_xen_attach:
3518 if (!(xen_available())) {
3519 error_report("Option not supported for this target");
3520 exit(1);
3521 }
3522 xen_mode = XEN_ATTACH;
3523 break;
3524 case QEMU_OPTION_xen_domid_restrict:
3525 if (!(xen_available())) {
3526 error_report("Option not supported for this target");
3527 exit(1);
3528 }
3529 xen_domid_restrict = true;
3530 break;
3531 case QEMU_OPTION_trace:
3532 g_free(trace_file);
3533 trace_file = trace_opt_parse(optarg);
3534 break;
3535 case QEMU_OPTION_plugin:
3536 qemu_plugin_opt_parse(optarg, &plugin_list);
3537 break;
3538 case QEMU_OPTION_readconfig:
3539 {
3540 int ret = qemu_read_config_file(optarg);
3541 if (ret < 0) {
3542 error_report("read config %s: %s", optarg,
3543 strerror(-ret));
3544 exit(1);
3545 }
3546 break;
3547 }
3548 case QEMU_OPTION_spice:
3549 olist = qemu_find_opts("spice");
3550 if (!olist) {
3551 error_report("spice support is disabled");
3552 exit(1);
3553 }
3554 opts = qemu_opts_parse_noisily(olist, optarg, false);
3555 if (!opts) {
3556 exit(1);
3557 }
3558 display_remote++;
3559 break;
3560 case QEMU_OPTION_writeconfig:
3561 {
3562 FILE *fp;
3563 if (strcmp(optarg, "-") == 0) {
3564 fp = stdout;
3565 } else {
3566 fp = fopen(optarg, "w");
3567 if (fp == NULL) {
3568 error_report("open %s: %s", optarg,
3569 strerror(errno));
3570 exit(1);
3571 }
3572 }
3573 qemu_config_write(fp);
3574 if (fp != stdout) {
3575 fclose(fp);
3576 }
3577 break;
3578 }
3579 case QEMU_OPTION_qtest:
3580 qtest_chrdev = optarg;
3581 break;
3582 case QEMU_OPTION_qtest_log:
3583 qtest_log = optarg;
3584 break;
3585 case QEMU_OPTION_sandbox:
3586 olist = qemu_find_opts("sandbox");
3587 if (!olist) {
3588 #ifndef CONFIG_SECCOMP
3589 error_report("-sandbox support is not enabled "
3590 "in this QEMU binary");
3591 #endif
3592 exit(1);
3593 }
3594
3595 opts = qemu_opts_parse_noisily(olist, optarg, true);
3596 if (!opts) {
3597 exit(1);
3598 }
3599 break;
3600 case QEMU_OPTION_add_fd:
3601 #ifndef _WIN32
3602 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3603 optarg, false);
3604 if (!opts) {
3605 exit(1);
3606 }
3607 #else
3608 error_report("File descriptor passing is disabled on this "
3609 "platform");
3610 exit(1);
3611 #endif
3612 break;
3613 case QEMU_OPTION_object:
3614 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3615 optarg, true);
3616 if (!opts) {
3617 exit(1);
3618 }
3619 break;
3620 case QEMU_OPTION_realtime:
3621 warn_report("'-realtime mlock=...' is deprecated, please use "
3622 "'-overcommit mem-lock=...' instead");
3623 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3624 optarg, false);
3625 if (!opts) {
3626 exit(1);
3627 }
3628 /* Don't override the -overcommit option if set */
3629 enable_mlock = enable_mlock ||
3630 qemu_opt_get_bool(opts, "mlock", true);
3631 break;
3632 case QEMU_OPTION_overcommit:
3633 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3634 optarg, false);
3635 if (!opts) {
3636 exit(1);
3637 }
3638 /* Don't override the -realtime option if set */
3639 enable_mlock = enable_mlock ||
3640 qemu_opt_get_bool(opts, "mem-lock", false);
3641 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3642 break;
3643 case QEMU_OPTION_msg:
3644 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3645 false);
3646 if (!opts) {
3647 exit(1);
3648 }
3649 configure_msg(opts);
3650 break;
3651 case QEMU_OPTION_dump_vmstate:
3652 if (vmstate_dump_file) {
3653 error_report("only one '-dump-vmstate' "
3654 "option may be given");
3655 exit(1);
3656 }
3657 vmstate_dump_file = fopen(optarg, "w");
3658 if (vmstate_dump_file == NULL) {
3659 error_report("open %s: %s", optarg, strerror(errno));
3660 exit(1);
3661 }
3662 break;
3663 case QEMU_OPTION_enable_sync_profile:
3664 qsp_enable();
3665 break;
3666 case QEMU_OPTION_nouserconfig:
3667 /* Nothing to be parsed here. Especially, do not error out below. */
3668 break;
3669 default:
3670 if (os_parse_cmd_args(popt->index, optarg)) {
3671 error_report("Option not supported in this build");
3672 exit(1);
3673 }
3674 }
3675 }
3676 }
3677 /*
3678 * Clear error location left behind by the loop.
3679 * Best done right after the loop. Do not insert code here!
3680 */
3681 loc_set_none();
3682
3683 user_register_global_props();
3684
3685 replay_configure(icount_opts);
3686
3687 if (incoming && !preconfig_exit_requested) {
3688 error_report("'preconfig' and 'incoming' options are "
3689 "mutually exclusive");
3690 exit(EXIT_FAILURE);
3691 }
3692
3693 configure_rtc(qemu_find_opts_singleton("rtc"));
3694
3695 machine_class = select_machine();
3696 object_set_machine_compat_props(machine_class->compat_props);
3697
3698 set_memory_options(&ram_slots, &maxram_size, machine_class);
3699
3700 os_daemonize();
3701 rcu_disable_atfork();
3702
3703 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3704 error_reportf_err(err, "cannot create PID file: ");
3705 exit(1);
3706 }
3707
3708 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3709 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3710
3711 if (qemu_init_main_loop(&main_loop_err)) {
3712 error_report_err(main_loop_err);
3713 exit(1);
3714 }
3715
3716 #ifdef CONFIG_SECCOMP
3717 olist = qemu_find_opts_err("sandbox", NULL);
3718 if (olist) {
3719 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3720 }
3721 #endif
3722
3723 qemu_opts_foreach(qemu_find_opts("name"),
3724 parse_name, NULL, &error_fatal);
3725
3726 #ifndef _WIN32
3727 qemu_opts_foreach(qemu_find_opts("add-fd"),
3728 parse_add_fd, NULL, &error_fatal);
3729
3730 qemu_opts_foreach(qemu_find_opts("add-fd"),
3731 cleanup_add_fd, NULL, &error_fatal);
3732 #endif
3733
3734 current_machine = MACHINE(object_new(object_class_get_name(
3735 OBJECT_CLASS(machine_class))));
3736 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3737 exit(0);
3738 }
3739 object_property_add_child(object_get_root(), "machine",
3740 OBJECT(current_machine), &error_abort);
3741 object_property_add_child(container_get(OBJECT(current_machine),
3742 "/unattached"),
3743 "sysbus", OBJECT(sysbus_get_default()),
3744 NULL);
3745
3746 if (machine_class->minimum_page_bits) {
3747 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3748 /* This would be a board error: specifying a minimum smaller than
3749 * a target's compile-time fixed setting.
3750 */
3751 g_assert_not_reached();
3752 }
3753 }
3754
3755 cpu_exec_init_all();
3756
3757 if (machine_class->hw_version) {
3758 qemu_set_hw_version(machine_class->hw_version);
3759 }
3760
3761 if (cpu_option && is_help_option(cpu_option)) {
3762 list_cpus(cpu_option);
3763 exit(0);
3764 }
3765
3766 if (!trace_init_backends()) {
3767 exit(1);
3768 }
3769 trace_init_file(trace_file);
3770
3771 /* Open the logfile at this point and set the log mask if necessary.
3772 */
3773 if (log_file) {
3774 qemu_set_log_filename(log_file, &error_fatal);
3775 }
3776
3777 if (log_mask) {
3778 int mask;
3779 mask = qemu_str_to_log_mask(log_mask);
3780 if (!mask) {
3781 qemu_print_log_usage(stdout);
3782 exit(1);
3783 }
3784 qemu_set_log(mask);
3785 } else {
3786 qemu_set_log(0);
3787 }
3788
3789 /* add configured firmware directories */
3790 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3791 for (i = 0; dirs[i] != NULL; i++) {
3792 qemu_add_data_dir(dirs[i]);
3793 }
3794 g_strfreev(dirs);
3795
3796 /* try to find datadir relative to the executable path */
3797 dir = os_find_datadir();
3798 qemu_add_data_dir(dir);
3799 g_free(dir);
3800
3801 /* add the datadir specified when building */
3802 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3803
3804 /* -L help lists the data directories and exits. */
3805 if (list_data_dirs) {
3806 for (i = 0; i < data_dir_idx; i++) {
3807 printf("%s\n", data_dir[i]);
3808 }
3809 exit(0);
3810 }
3811
3812 /* machine_class: default to UP */
3813 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3814 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3815 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3816
3817 /* default to machine_class->default_cpus */
3818 current_machine->smp.cpus = machine_class->default_cpus;
3819 current_machine->smp.max_cpus = machine_class->default_cpus;
3820 current_machine->smp.cores = 1;
3821 current_machine->smp.threads = 1;
3822
3823 machine_class->smp_parse(current_machine,
3824 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3825
3826 /* sanity-check smp_cpus and max_cpus against machine_class */
3827 if (current_machine->smp.cpus < machine_class->min_cpus) {
3828 error_report("Invalid SMP CPUs %d. The min CPUs "
3829 "supported by machine '%s' is %d",
3830 current_machine->smp.cpus,
3831 machine_class->name, machine_class->min_cpus);
3832 exit(1);
3833 }
3834 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3835 error_report("Invalid SMP CPUs %d. The max CPUs "
3836 "supported by machine '%s' is %d",
3837 current_machine->smp.max_cpus,
3838 machine_class->name, machine_class->max_cpus);
3839 exit(1);
3840 }
3841
3842 /*
3843 * Get the default machine options from the machine if it is not already
3844 * specified either by the configuration file or by the command line.
3845 */
3846 if (machine_class->default_machine_opts) {
3847 qemu_opts_set_defaults(qemu_find_opts("machine"),
3848 machine_class->default_machine_opts, 0);
3849 }
3850
3851 /* process plugin before CPUs are created, but once -smp has been parsed */
3852 if (qemu_plugin_load_list(&plugin_list)) {
3853 exit(1);
3854 }
3855
3856 qemu_opts_foreach(qemu_find_opts("device"),
3857 default_driver_check, NULL, NULL);
3858 qemu_opts_foreach(qemu_find_opts("global"),
3859 default_driver_check, NULL, NULL);
3860
3861 if (!vga_model && !default_vga) {
3862 vga_interface_type = VGA_DEVICE;
3863 }
3864 if (!has_defaults || machine_class->no_serial) {
3865 default_serial = 0;
3866 }
3867 if (!has_defaults || machine_class->no_parallel) {
3868 default_parallel = 0;
3869 }
3870 if (!has_defaults || machine_class->no_floppy) {
3871 default_floppy = 0;
3872 }
3873 if (!has_defaults || machine_class->no_cdrom) {
3874 default_cdrom = 0;
3875 }
3876 if (!has_defaults || machine_class->no_sdcard) {
3877 default_sdcard = 0;
3878 }
3879 if (!has_defaults) {
3880 default_monitor = 0;
3881 default_net = 0;
3882 default_vga = 0;
3883 }
3884
3885 if (is_daemonized()) {
3886 if (!preconfig_exit_requested) {
3887 error_report("'preconfig' and 'daemonize' options are "
3888 "mutually exclusive");
3889 exit(EXIT_FAILURE);
3890 }
3891
3892 /* According to documentation and historically, -nographic redirects
3893 * serial port, parallel port and monitor to stdio, which does not work
3894 * with -daemonize. We can redirect these to null instead, but since
3895 * -nographic is legacy, let's just error out.
3896 * We disallow -nographic only if all other ports are not redirected
3897 * explicitly, to not break existing legacy setups which uses
3898 * -nographic _and_ redirects all ports explicitly - this is valid
3899 * usage, -nographic is just a no-op in this case.
3900 */
3901 if (nographic
3902 && (default_parallel || default_serial || default_monitor)) {
3903 error_report("-nographic cannot be used with -daemonize");
3904 exit(1);
3905 }
3906 #ifdef CONFIG_CURSES
3907 if (dpy.type == DISPLAY_TYPE_CURSES) {
3908 error_report("curses display cannot be used with -daemonize");
3909 exit(1);
3910 }
3911 #endif
3912 }
3913
3914 if (nographic) {
3915 if (default_parallel)
3916 add_device_config(DEV_PARALLEL, "null");
3917 if (default_serial && default_monitor) {
3918 add_device_config(DEV_SERIAL, "mon:stdio");
3919 } else {
3920 if (default_serial)
3921 add_device_config(DEV_SERIAL, "stdio");
3922 if (default_monitor)
3923 monitor_parse("stdio", "readline", false);
3924 }
3925 } else {
3926 if (default_serial)
3927 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3928 if (default_parallel)
3929 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3930 if (default_monitor)
3931 monitor_parse("vc:80Cx24C", "readline", false);
3932 }
3933
3934 #if defined(CONFIG_VNC)
3935 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
3936 display_remote++;
3937 }
3938 #endif
3939 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
3940 if (!qemu_display_find_default(&dpy)) {
3941 dpy.type = DISPLAY_TYPE_NONE;
3942 #if defined(CONFIG_VNC)
3943 vnc_parse("localhost:0,to=99,id=default", &error_abort);
3944 #endif
3945 }
3946 }
3947 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
3948 dpy.type = DISPLAY_TYPE_NONE;
3949 }
3950
3951 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
3952 error_report("-alt-grab and -ctrl-grab are only valid "
3953 "for SDL, ignoring option");
3954 }
3955 if (dpy.has_window_close &&
3956 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
3957 error_report("-no-quit is only valid for GTK and SDL, "
3958 "ignoring option");
3959 }
3960
3961 qemu_display_early_init(&dpy);
3962 qemu_console_early_init();
3963
3964 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
3965 #if defined(CONFIG_OPENGL)
3966 error_report("OpenGL is not supported by the display");
3967 #else
3968 error_report("OpenGL support is disabled");
3969 #endif
3970 exit(1);
3971 }
3972
3973 page_size_init();
3974 socket_init();
3975
3976 qemu_opts_foreach(qemu_find_opts("object"),
3977 user_creatable_add_opts_foreach,
3978 object_create_initial, &error_fatal);
3979
3980 qemu_opts_foreach(qemu_find_opts("chardev"),
3981 chardev_init_func, NULL, &error_fatal);
3982 /* now chardevs have been created we may have semihosting to connect */
3983 qemu_semihosting_connect_chardevs();
3984
3985 #ifdef CONFIG_VIRTFS
3986 qemu_opts_foreach(qemu_find_opts("fsdev"),
3987 fsdev_init_func, NULL, &error_fatal);
3988 #endif
3989
3990 if (qemu_opts_foreach(qemu_find_opts("device"),
3991 device_help_func, NULL, NULL)) {
3992 exit(0);
3993 }
3994
3995 /*
3996 * Note: we need to create block backends before
3997 * machine_set_property(), so machine properties can refer to
3998 * them.
3999 */
4000 configure_blockdev(&bdo_queue, machine_class, snapshot);
4001
4002 machine_opts = qemu_get_machine_opts();
4003 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4004 &error_fatal);
4005 current_machine->ram_size = ram_size;
4006 current_machine->maxram_size = maxram_size;
4007 current_machine->ram_slots = ram_slots;
4008
4009 /*
4010 * Note: uses machine properties such as kernel-irqchip, must run
4011 * after machine_set_property().
4012 */
4013 configure_accelerator(current_machine, argv[0]);
4014
4015 /*
4016 * Beware, QOM objects created before this point miss global and
4017 * compat properties.
4018 *
4019 * Global properties get set up by qdev_prop_register_global(),
4020 * called from user_register_global_props(), and certain option
4021 * desugaring. Also in CPU feature desugaring (buried in
4022 * parse_cpu_option()), which happens below this point, but may
4023 * only target the CPU type, which can only be created after
4024 * parse_cpu_option() returned the type.
4025 *
4026 * Machine compat properties: object_set_machine_compat_props().
4027 * Accelerator compat props: object_set_accelerator_compat_props(),
4028 * called from configure_accelerator().
4029 */
4030
4031 if (!qtest_enabled() && machine_class->deprecation_reason) {
4032 error_report("Machine type '%s' is deprecated: %s",
4033 machine_class->name, machine_class->deprecation_reason);
4034 }
4035
4036 /*
4037 * Note: creates a QOM object, must run only after global and
4038 * compat properties have been set up.
4039 */
4040 migration_object_init();
4041
4042 if (qtest_chrdev) {
4043 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4044 }
4045
4046 machine_opts = qemu_get_machine_opts();
4047 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4048 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4049 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4050 bios_name = qemu_opt_get(machine_opts, "firmware");
4051
4052 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4053 if (opts) {
4054 boot_order = qemu_opt_get(opts, "order");
4055 if (boot_order) {
4056 validate_bootdevices(boot_order, &error_fatal);
4057 }
4058
4059 boot_once = qemu_opt_get(opts, "once");
4060 if (boot_once) {
4061 validate_bootdevices(boot_once, &error_fatal);
4062 }
4063
4064 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4065 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4066 }
4067
4068 if (!boot_order) {
4069 boot_order = machine_class->default_boot_order;
4070 }
4071
4072 if (!kernel_cmdline) {
4073 kernel_cmdline = "";
4074 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4075 }
4076
4077 linux_boot = (kernel_filename != NULL);
4078
4079 if (!linux_boot && *kernel_cmdline != '\0') {
4080 error_report("-append only allowed with -kernel option");
4081 exit(1);
4082 }
4083
4084 if (!linux_boot && initrd_filename != NULL) {
4085 error_report("-initrd only allowed with -kernel option");
4086 exit(1);
4087 }
4088
4089 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4090 /* fall back to the -kernel/-append */
4091 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4092 }
4093
4094 /* spice needs the timers to be initialized by this point */
4095 qemu_spice_init();
4096
4097 cpu_ticks_init();
4098 if (icount_opts) {
4099 if (!tcg_enabled()) {
4100 error_report("-icount is not allowed with hardware virtualization");
4101 exit(1);
4102 }
4103 configure_icount(icount_opts, &error_abort);
4104 qemu_opts_del(icount_opts);
4105 }
4106
4107 if (tcg_enabled()) {
4108 qemu_tcg_configure(accel_opts, &error_fatal);
4109 }
4110
4111 if (default_net) {
4112 QemuOptsList *net = qemu_find_opts("net");
4113 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4114 #ifdef CONFIG_SLIRP
4115 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4116 #endif
4117 }
4118
4119 if (net_init_clients(&err) < 0) {
4120 error_report_err(err);
4121 exit(1);
4122 }
4123
4124 qemu_opts_foreach(qemu_find_opts("object"),
4125 user_creatable_add_opts_foreach,
4126 object_create_delayed, &error_fatal);
4127
4128 tpm_init();
4129
4130 if (!xen_enabled()) {
4131 /* On 32-bit hosts, QEMU is limited by virtual address space */
4132 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4133 error_report("at most 2047 MB RAM can be simulated");
4134 exit(1);
4135 }
4136 }
4137
4138 blk_mig_init();
4139 ram_mig_init();
4140 dirty_bitmap_mig_init();
4141
4142 qemu_opts_foreach(qemu_find_opts("mon"),
4143 mon_init_func, NULL, &error_fatal);
4144
4145 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4146 exit(1);
4147 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4148 exit(1);
4149 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4150 exit(1);
4151
4152 /* If no default VGA is requested, the default is "none". */
4153 if (default_vga) {
4154 vga_model = get_default_vga_model(machine_class);
4155 }
4156 if (vga_model) {
4157 select_vgahw(machine_class, vga_model);
4158 }
4159
4160 if (watchdog) {
4161 i = select_watchdog(watchdog);
4162 if (i > 0)
4163 exit (i == 1 ? 1 : 0);
4164 }
4165
4166 /* This checkpoint is required by replay to separate prior clock
4167 reading from the other reads, because timer polling functions query
4168 clock values from the log. */
4169 replay_checkpoint(CHECKPOINT_INIT);
4170 qdev_machine_init();
4171
4172 current_machine->boot_order = boot_order;
4173
4174 /* parse features once if machine provides default cpu_type */
4175 current_machine->cpu_type = machine_class->default_cpu_type;
4176 if (cpu_option) {
4177 current_machine->cpu_type = parse_cpu_option(cpu_option);
4178 }
4179 parse_numa_opts(current_machine);
4180
4181 /* do monitor/qmp handling at preconfig state if requested */
4182 main_loop();
4183
4184 audio_init_audiodevs();
4185
4186 /* from here on runstate is RUN_STATE_PRELAUNCH */
4187 machine_run_board_init(current_machine);
4188
4189 realtime_init();
4190
4191 soundhw_init();
4192
4193 if (hax_enabled()) {
4194 hax_sync_vcpus();
4195 }
4196
4197 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4198 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4199
4200 /* init USB devices */
4201 if (machine_usb(current_machine)) {
4202 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4203 exit(1);
4204 }
4205
4206 /* Check if IGD GFX passthrough. */
4207 igd_gfx_passthru();
4208
4209 /* init generic devices */
4210 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4211 qemu_opts_foreach(qemu_find_opts("device"),
4212 device_init_func, NULL, &error_fatal);
4213
4214 cpu_synchronize_all_post_init();
4215
4216 rom_reset_order_override();
4217
4218 /* Did we create any drives that we failed to create a device for? */
4219 drive_check_orphaned();
4220
4221 /* Don't warn about the default network setup that you get if
4222 * no command line -net or -netdev options are specified. There
4223 * are two cases that we would otherwise complain about:
4224 * (1) board doesn't support a NIC but the implicit "-net nic"
4225 * requested one
4226 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4227 * sets up a nic that isn't connected to anything.
4228 */
4229 if (!default_net && (!qtest_enabled() || has_defaults)) {
4230 net_check_clients();
4231 }
4232
4233 if (boot_once) {
4234 qemu_boot_set(boot_once, &error_fatal);
4235 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4236 }
4237
4238 /* init local displays */
4239 ds = init_displaystate();
4240 qemu_display_init(ds, &dpy);
4241
4242 /* must be after terminal init, SDL library changes signal handlers */
4243 os_setup_signal_handling();
4244
4245 /* init remote displays */
4246 #ifdef CONFIG_VNC
4247 qemu_opts_foreach(qemu_find_opts("vnc"),
4248 vnc_init_func, NULL, &error_fatal);
4249 #endif
4250
4251 if (using_spice) {
4252 qemu_spice_display_init();
4253 }
4254
4255 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4256 exit(1);
4257 }
4258
4259 qdev_machine_creation_done();
4260
4261 /* TODO: once all bus devices are qdevified, this should be done
4262 * when bus is created by qdev.c */
4263 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4264 qemu_run_machine_init_done_notifiers();
4265
4266 if (rom_check_and_register_reset() != 0) {
4267 error_report("rom check and register reset failed");
4268 exit(1);
4269 }
4270
4271 replay_start();
4272
4273 /* This checkpoint is required by replay to separate prior clock
4274 reading from the other reads, because timer polling functions query
4275 clock values from the log. */
4276 replay_checkpoint(CHECKPOINT_RESET);
4277 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4278 register_global_state();
4279 if (loadvm) {
4280 Error *local_err = NULL;
4281 if (load_snapshot(loadvm, &local_err) < 0) {
4282 error_report_err(local_err);
4283 autostart = 0;
4284 exit(1);
4285 }
4286 }
4287 if (replay_mode != REPLAY_MODE_NONE) {
4288 replay_vmstate_init();
4289 }
4290
4291 qdev_prop_check_globals();
4292 if (vmstate_dump_file) {
4293 /* dump and exit */
4294 dump_vmstate_json_to_file(vmstate_dump_file);
4295 return 0;
4296 }
4297
4298 if (incoming) {
4299 Error *local_err = NULL;
4300 qemu_start_incoming_migration(incoming, &local_err);
4301 if (local_err) {
4302 error_reportf_err(local_err, "-incoming %s: ", incoming);
4303 exit(1);
4304 }
4305 } else if (autostart) {
4306 vm_start();
4307 }
4308
4309 accel_setup_post(current_machine);
4310 os_setup_post();
4311
4312 main_loop();
4313
4314 gdbserver_cleanup();
4315
4316 /*
4317 * cleaning up the migration object cancels any existing migration
4318 * try to do this early so that it also stops using devices.
4319 */
4320 migration_shutdown();
4321
4322 /*
4323 * We must cancel all block jobs while the block layer is drained,
4324 * or cancelling will be affected by throttling and thus may block
4325 * for an extended period of time.
4326 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4327 * it in the drained section.
4328 * We do not need to end this section, because we do not want any
4329 * requests happening from here on anyway.
4330 */
4331 bdrv_drain_all_begin();
4332
4333 /* No more vcpu or device emulation activity beyond this point */
4334 vm_shutdown();
4335 replay_finish();
4336
4337 job_cancel_sync_all();
4338 bdrv_close_all();
4339
4340 res_free();
4341
4342 /* vhost-user must be cleaned up before chardevs. */
4343 tpm_cleanup();
4344 net_cleanup();
4345 audio_cleanup();
4346 monitor_cleanup();
4347 qemu_chr_cleanup();
4348 user_creatable_cleanup();
4349 /* TODO: unref root container, check all devices are ok */
4350
4351 return 0;
4352 }
AR7 emulation for QEMU