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target/arm: Stop assuming DBGDIDR always exists
[qemu/ar7.git] / vl.c
blob794f2e5733cdea7ede3bb2c158e52052de810e64
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 graphic_rotate = 0;
172 const char *watchdog;
173 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
174 int nb_option_roms;
175 int old_param = 0;
176 const char *qemu_name;
177 int alt_grab = 0;
178 int ctrl_grab = 0;
179 unsigned int nb_prom_envs = 0;
180 const char *prom_envs[MAX_PROM_ENVS];
181 int boot_menu;
182 bool boot_strict;
183 uint8_t *boot_splash_filedata;
184 int only_migratable; /* turn it off unless user states otherwise */
185 bool wakeup_suspend_enabled;
186
187 int icount_align_option;
188
189 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
190 * little-endian "wire format" described in the SMBIOS 2.6 specification.
191 */
192 QemuUUID qemu_uuid;
193 bool qemu_uuid_set;
194
195 static NotifierList exit_notifiers =
196 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
197
198 static NotifierList machine_init_done_notifiers =
199 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
200
201 bool xen_allowed;
202 uint32_t xen_domid;
203 enum xen_mode xen_mode = XEN_EMULATE;
204 bool xen_domid_restrict;
205
206 static int has_defaults = 1;
207 static int default_serial = 1;
208 static int default_parallel = 1;
209 static int default_monitor = 1;
210 static int default_floppy = 1;
211 static int default_cdrom = 1;
212 static int default_sdcard = 1;
213 static int default_vga = 1;
214 static int default_net = 1;
215
216 static struct {
217 const char *driver;
218 int *flag;
219 } default_list[] = {
220 { .driver = "isa-serial", .flag = &default_serial },
221 { .driver = "isa-parallel", .flag = &default_parallel },
222 { .driver = "isa-fdc", .flag = &default_floppy },
223 { .driver = "floppy", .flag = &default_floppy },
224 { .driver = "ide-cd", .flag = &default_cdrom },
225 { .driver = "ide-hd", .flag = &default_cdrom },
226 { .driver = "ide-drive", .flag = &default_cdrom },
227 { .driver = "scsi-cd", .flag = &default_cdrom },
228 { .driver = "scsi-hd", .flag = &default_cdrom },
229 { .driver = "VGA", .flag = &default_vga },
230 { .driver = "isa-vga", .flag = &default_vga },
231 { .driver = "cirrus-vga", .flag = &default_vga },
232 { .driver = "isa-cirrus-vga", .flag = &default_vga },
233 { .driver = "vmware-svga", .flag = &default_vga },
234 { .driver = "qxl-vga", .flag = &default_vga },
235 { .driver = "virtio-vga", .flag = &default_vga },
236 { .driver = "ati-vga", .flag = &default_vga },
237 { .driver = "vhost-user-vga", .flag = &default_vga },
238 };
239
240 static QemuOptsList qemu_rtc_opts = {
241 .name = "rtc",
242 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
243 .merge_lists = true,
244 .desc = {
245 {
246 .name = "base",
247 .type = QEMU_OPT_STRING,
248 },{
249 .name = "clock",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "driftfix",
253 .type = QEMU_OPT_STRING,
254 },
255 { /* end of list */ }
256 },
257 };
258
259 static QemuOptsList qemu_option_rom_opts = {
260 .name = "option-rom",
261 .implied_opt_name = "romfile",
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
263 .desc = {
264 {
265 .name = "bootindex",
266 .type = QEMU_OPT_NUMBER,
267 }, {
268 .name = "romfile",
269 .type = QEMU_OPT_STRING,
270 },
271 { /* end of list */ }
272 },
273 };
274
275 static QemuOptsList qemu_machine_opts = {
276 .name = "machine",
277 .implied_opt_name = "type",
278 .merge_lists = true,
279 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
280 .desc = {
281 /*
282 * no elements => accept any
283 * sanity checking will happen later
284 * when setting machine properties
285 */
286 { }
287 },
288 };
289
290 static QemuOptsList qemu_accel_opts = {
291 .name = "accel",
292 .implied_opt_name = "accel",
293 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
294 .desc = {
295 /*
296 * no elements => accept any
297 * sanity checking will happen later
298 * when setting accelerator properties
299 */
300 { }
301 },
302 };
303
304 static QemuOptsList qemu_boot_opts = {
305 .name = "boot-opts",
306 .implied_opt_name = "order",
307 .merge_lists = true,
308 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
309 .desc = {
310 {
311 .name = "order",
312 .type = QEMU_OPT_STRING,
313 }, {
314 .name = "once",
315 .type = QEMU_OPT_STRING,
316 }, {
317 .name = "menu",
318 .type = QEMU_OPT_BOOL,
319 }, {
320 .name = "splash",
321 .type = QEMU_OPT_STRING,
322 }, {
323 .name = "splash-time",
324 .type = QEMU_OPT_NUMBER,
325 }, {
326 .name = "reboot-timeout",
327 .type = QEMU_OPT_NUMBER,
328 }, {
329 .name = "strict",
330 .type = QEMU_OPT_BOOL,
331 },
332 { /*End of list */ }
333 },
334 };
335
336 static QemuOptsList qemu_add_fd_opts = {
337 .name = "add-fd",
338 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
339 .desc = {
340 {
341 .name = "fd",
342 .type = QEMU_OPT_NUMBER,
343 .help = "file descriptor of which a duplicate is added to fd set",
344 },{
345 .name = "set",
346 .type = QEMU_OPT_NUMBER,
347 .help = "ID of the fd set to add fd to",
348 },{
349 .name = "opaque",
350 .type = QEMU_OPT_STRING,
351 .help = "free-form string used to describe fd",
352 },
353 { /* end of list */ }
354 },
355 };
356
357 static QemuOptsList qemu_object_opts = {
358 .name = "object",
359 .implied_opt_name = "qom-type",
360 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
361 .desc = {
362 { }
363 },
364 };
365
366 static QemuOptsList qemu_tpmdev_opts = {
367 .name = "tpmdev",
368 .implied_opt_name = "type",
369 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
370 .desc = {
371 /* options are defined in the TPM backends */
372 { /* end of list */ }
373 },
374 };
375
376 static QemuOptsList qemu_realtime_opts = {
377 .name = "realtime",
378 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
379 .desc = {
380 {
381 .name = "mlock",
382 .type = QEMU_OPT_BOOL,
383 },
384 { /* end of list */ }
385 },
386 };
387
388 static QemuOptsList qemu_overcommit_opts = {
389 .name = "overcommit",
390 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
391 .desc = {
392 {
393 .name = "mem-lock",
394 .type = QEMU_OPT_BOOL,
395 },
396 {
397 .name = "cpu-pm",
398 .type = QEMU_OPT_BOOL,
399 },
400 { /* end of list */ }
401 },
402 };
403
404 static QemuOptsList qemu_msg_opts = {
405 .name = "msg",
406 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
407 .desc = {
408 {
409 .name = "timestamp",
410 .type = QEMU_OPT_BOOL,
411 },
412 { /* end of list */ }
413 },
414 };
415
416 static QemuOptsList qemu_name_opts = {
417 .name = "name",
418 .implied_opt_name = "guest",
419 .merge_lists = true,
420 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
421 .desc = {
422 {
423 .name = "guest",
424 .type = QEMU_OPT_STRING,
425 .help = "Sets the name of the guest.\n"
426 "This name will be displayed in the SDL window caption.\n"
427 "The name will also be used for the VNC server",
428 }, {
429 .name = "process",
430 .type = QEMU_OPT_STRING,
431 .help = "Sets the name of the QEMU process, as shown in top etc",
432 }, {
433 .name = "debug-threads",
434 .type = QEMU_OPT_BOOL,
435 .help = "When enabled, name the individual threads; defaults off.\n"
436 "NOTE: The thread names are for debugging and not a\n"
437 "stable API.",
438 },
439 { /* End of list */ }
440 },
441 };
442
443 static QemuOptsList qemu_mem_opts = {
444 .name = "memory",
445 .implied_opt_name = "size",
446 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
447 .merge_lists = true,
448 .desc = {
449 {
450 .name = "size",
451 .type = QEMU_OPT_SIZE,
452 },
453 {
454 .name = "slots",
455 .type = QEMU_OPT_NUMBER,
456 },
457 {
458 .name = "maxmem",
459 .type = QEMU_OPT_SIZE,
460 },
461 { /* end of list */ }
462 },
463 };
464
465 static QemuOptsList qemu_icount_opts = {
466 .name = "icount",
467 .implied_opt_name = "shift",
468 .merge_lists = true,
469 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
470 .desc = {
471 {
472 .name = "shift",
473 .type = QEMU_OPT_STRING,
474 }, {
475 .name = "align",
476 .type = QEMU_OPT_BOOL,
477 }, {
478 .name = "sleep",
479 .type = QEMU_OPT_BOOL,
480 }, {
481 .name = "rr",
482 .type = QEMU_OPT_STRING,
483 }, {
484 .name = "rrfile",
485 .type = QEMU_OPT_STRING,
486 }, {
487 .name = "rrsnapshot",
488 .type = QEMU_OPT_STRING,
489 },
490 { /* end of list */ }
491 },
492 };
493
494 static QemuOptsList qemu_fw_cfg_opts = {
495 .name = "fw_cfg",
496 .implied_opt_name = "name",
497 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
498 .desc = {
499 {
500 .name = "name",
501 .type = QEMU_OPT_STRING,
502 .help = "Sets the fw_cfg name of the blob to be inserted",
503 }, {
504 .name = "file",
505 .type = QEMU_OPT_STRING,
506 .help = "Sets the name of the file from which "
507 "the fw_cfg blob will be loaded",
508 }, {
509 .name = "string",
510 .type = QEMU_OPT_STRING,
511 .help = "Sets content of the blob to be inserted from a string",
512 },
513 { /* end of list */ }
514 },
515 };
516
517 /**
518 * Get machine options
519 *
520 * Returns: machine options (never null).
521 */
522 QemuOpts *qemu_get_machine_opts(void)
523 {
524 return qemu_find_opts_singleton("machine");
525 }
526
527 const char *qemu_get_vm_name(void)
528 {
529 return qemu_name;
530 }
531
532 static void res_free(void)
533 {
534 g_free(boot_splash_filedata);
535 boot_splash_filedata = NULL;
536 }
537
538 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
539 {
540 const char *driver = qemu_opt_get(opts, "driver");
541 int i;
542
543 if (!driver)
544 return 0;
545 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
546 if (strcmp(default_list[i].driver, driver) != 0)
547 continue;
548 *(default_list[i].flag) = 0;
549 }
550 return 0;
551 }
552
553 /***********************************************************/
554 /* QEMU state */
555
556 static RunState current_run_state = RUN_STATE_PRECONFIG;
557
558 /* We use RUN_STATE__MAX but any invalid value will do */
559 static RunState vmstop_requested = RUN_STATE__MAX;
560 static QemuMutex vmstop_lock;
561
562 typedef struct {
563 RunState from;
564 RunState to;
565 } RunStateTransition;
566
567 static const RunStateTransition runstate_transitions_def[] = {
568 /* from -> to */
569 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
570 /* Early switch to inmigrate state to allow -incoming CLI option work
571 * as it used to. TODO: delay actual switching to inmigrate state to
572 * the point after machine is built and remove this hack.
573 */
574 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
575
576 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
577 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
578 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
579
580 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
581 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
582 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
583 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
584 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
585 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
586 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
587 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
588 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
589 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
590 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
591 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
592
593 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
594 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
595 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
596
597 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
598 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
599 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
600
601 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
602 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
603 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
604 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
605 { RUN_STATE_PAUSED, RUN_STATE_COLO},
606
607 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
608 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
609 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
610
611 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
612 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
613 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
614
615 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
616 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
617 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
618 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
619 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
620
621 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
622 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
623
624 { RUN_STATE_COLO, RUN_STATE_RUNNING },
625
626 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
627 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
628 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
629 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
630 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
632 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
633 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
634 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
635 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
636 { RUN_STATE_RUNNING, RUN_STATE_COLO},
637
638 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
639
640 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
641 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
642 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
643
644 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
645 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
646 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
647 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
648 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
649 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
650
651 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
652 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
653 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
654 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
655
656 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
657 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
658 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
659
660 { RUN_STATE__MAX, RUN_STATE__MAX },
661 };
662
663 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
664
665 bool runstate_check(RunState state)
666 {
667 return current_run_state == state;
668 }
669
670 bool runstate_store(char *str, size_t size)
671 {
672 const char *state = RunState_str(current_run_state);
673 size_t len = strlen(state) + 1;
674
675 if (len > size) {
676 return false;
677 }
678 memcpy(str, state, len);
679 return true;
680 }
681
682 static void runstate_init(void)
683 {
684 const RunStateTransition *p;
685
686 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
687 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
688 runstate_valid_transitions[p->from][p->to] = true;
689 }
690
691 qemu_mutex_init(&vmstop_lock);
692 }
693
694 /* This function will abort() on invalid state transitions */
695 void runstate_set(RunState new_state)
696 {
697 assert(new_state < RUN_STATE__MAX);
698
699 trace_runstate_set(current_run_state, RunState_str(current_run_state),
700 new_state, RunState_str(new_state));
701
702 if (current_run_state == new_state) {
703 return;
704 }
705
706 if (!runstate_valid_transitions[current_run_state][new_state]) {
707 error_report("invalid runstate transition: '%s' -> '%s'",
708 RunState_str(current_run_state),
709 RunState_str(new_state));
710 abort();
711 }
712
713 current_run_state = new_state;
714 }
715
716 int runstate_is_running(void)
717 {
718 return runstate_check(RUN_STATE_RUNNING);
719 }
720
721 bool runstate_needs_reset(void)
722 {
723 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
724 runstate_check(RUN_STATE_SHUTDOWN);
725 }
726
727 StatusInfo *qmp_query_status(Error **errp)
728 {
729 StatusInfo *info = g_malloc0(sizeof(*info));
730
731 info->running = runstate_is_running();
732 info->singlestep = singlestep;
733 info->status = current_run_state;
734
735 return info;
736 }
737
738 bool qemu_vmstop_requested(RunState *r)
739 {
740 qemu_mutex_lock(&vmstop_lock);
741 *r = vmstop_requested;
742 vmstop_requested = RUN_STATE__MAX;
743 qemu_mutex_unlock(&vmstop_lock);
744 return *r < RUN_STATE__MAX;
745 }
746
747 void qemu_system_vmstop_request_prepare(void)
748 {
749 qemu_mutex_lock(&vmstop_lock);
750 }
751
752 void qemu_system_vmstop_request(RunState state)
753 {
754 vmstop_requested = state;
755 qemu_mutex_unlock(&vmstop_lock);
756 qemu_notify_event();
757 }
758
759 /***********************************************************/
760 /* RTC reference time/date access */
761 static time_t qemu_ref_timedate(QEMUClockType clock)
762 {
763 time_t value = qemu_clock_get_ms(clock) / 1000;
764 switch (clock) {
765 case QEMU_CLOCK_REALTIME:
766 value -= rtc_realtime_clock_offset;
767 /* fall through */
768 case QEMU_CLOCK_VIRTUAL:
769 value += rtc_ref_start_datetime;
770 break;
771 case QEMU_CLOCK_HOST:
772 if (rtc_base_type == RTC_BASE_DATETIME) {
773 value -= rtc_host_datetime_offset;
774 }
775 break;
776 default:
777 assert(0);
778 }
779 return value;
780 }
781
782 void qemu_get_timedate(struct tm *tm, int offset)
783 {
784 time_t ti = qemu_ref_timedate(rtc_clock);
785
786 ti += offset;
787
788 switch (rtc_base_type) {
789 case RTC_BASE_DATETIME:
790 case RTC_BASE_UTC:
791 gmtime_r(&ti, tm);
792 break;
793 case RTC_BASE_LOCALTIME:
794 localtime_r(&ti, tm);
795 break;
796 }
797 }
798
799 int qemu_timedate_diff(struct tm *tm)
800 {
801 time_t seconds;
802
803 switch (rtc_base_type) {
804 case RTC_BASE_DATETIME:
805 case RTC_BASE_UTC:
806 seconds = mktimegm(tm);
807 break;
808 case RTC_BASE_LOCALTIME:
809 {
810 struct tm tmp = *tm;
811 tmp.tm_isdst = -1; /* use timezone to figure it out */
812 seconds = mktime(&tmp);
813 break;
814 }
815 default:
816 abort();
817 }
818
819 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
820 }
821
822 static void configure_rtc_base_datetime(const char *startdate)
823 {
824 time_t rtc_start_datetime;
825 struct tm tm;
826
827 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
828 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
829 /* OK */
830 } else if (sscanf(startdate, "%d-%d-%d",
831 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
832 tm.tm_hour = 0;
833 tm.tm_min = 0;
834 tm.tm_sec = 0;
835 } else {
836 goto date_fail;
837 }
838 tm.tm_year -= 1900;
839 tm.tm_mon--;
840 rtc_start_datetime = mktimegm(&tm);
841 if (rtc_start_datetime == -1) {
842 date_fail:
843 error_report("invalid datetime format");
844 error_printf("valid formats: "
845 "'2006-06-17T16:01:21' or '2006-06-17'\n");
846 exit(1);
847 }
848 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
849 rtc_ref_start_datetime = rtc_start_datetime;
850 }
851
852 static void configure_rtc(QemuOpts *opts)
853 {
854 const char *value;
855
856 /* Set defaults */
857 rtc_clock = QEMU_CLOCK_HOST;
858 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
859 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
860
861 value = qemu_opt_get(opts, "base");
862 if (value) {
863 if (!strcmp(value, "utc")) {
864 rtc_base_type = RTC_BASE_UTC;
865 } else if (!strcmp(value, "localtime")) {
866 Error *blocker = NULL;
867 rtc_base_type = RTC_BASE_LOCALTIME;
868 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
869 "-rtc base=localtime");
870 replay_add_blocker(blocker);
871 } else {
872 rtc_base_type = RTC_BASE_DATETIME;
873 configure_rtc_base_datetime(value);
874 }
875 }
876 value = qemu_opt_get(opts, "clock");
877 if (value) {
878 if (!strcmp(value, "host")) {
879 rtc_clock = QEMU_CLOCK_HOST;
880 } else if (!strcmp(value, "rt")) {
881 rtc_clock = QEMU_CLOCK_REALTIME;
882 } else if (!strcmp(value, "vm")) {
883 rtc_clock = QEMU_CLOCK_VIRTUAL;
884 } else {
885 error_report("invalid option value '%s'", value);
886 exit(1);
887 }
888 }
889 value = qemu_opt_get(opts, "driftfix");
890 if (value) {
891 if (!strcmp(value, "slew")) {
892 object_register_sugar_prop("mc146818rtc",
893 "lost_tick_policy",
894 "slew");
895 } else if (!strcmp(value, "none")) {
896 /* discard is default */
897 } else {
898 error_report("invalid option value '%s'", value);
899 exit(1);
900 }
901 }
902 }
903
904 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
905 {
906 const char *proc_name;
907
908 if (qemu_opt_get(opts, "debug-threads")) {
909 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
910 }
911 qemu_name = qemu_opt_get(opts, "guest");
912
913 proc_name = qemu_opt_get(opts, "process");
914 if (proc_name) {
915 os_set_proc_name(proc_name);
916 }
917
918 return 0;
919 }
920
921 bool defaults_enabled(void)
922 {
923 return has_defaults;
924 }
925
926 #ifndef _WIN32
927 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
928 {
929 int fd, dupfd, flags;
930 int64_t fdset_id;
931 const char *fd_opaque = NULL;
932 AddfdInfo *fdinfo;
933
934 fd = qemu_opt_get_number(opts, "fd", -1);
935 fdset_id = qemu_opt_get_number(opts, "set", -1);
936 fd_opaque = qemu_opt_get(opts, "opaque");
937
938 if (fd < 0) {
939 error_setg(errp, "fd option is required and must be non-negative");
940 return -1;
941 }
942
943 if (fd <= STDERR_FILENO) {
944 error_setg(errp, "fd cannot be a standard I/O stream");
945 return -1;
946 }
947
948 /*
949 * All fds inherited across exec() necessarily have FD_CLOEXEC
950 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
951 */
952 flags = fcntl(fd, F_GETFD);
953 if (flags == -1 || (flags & FD_CLOEXEC)) {
954 error_setg(errp, "fd is not valid or already in use");
955 return -1;
956 }
957
958 if (fdset_id < 0) {
959 error_setg(errp, "set option is required and must be non-negative");
960 return -1;
961 }
962
963 #ifdef F_DUPFD_CLOEXEC
964 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
965 #else
966 dupfd = dup(fd);
967 if (dupfd != -1) {
968 qemu_set_cloexec(dupfd);
969 }
970 #endif
971 if (dupfd == -1) {
972 error_setg(errp, "error duplicating fd: %s", strerror(errno));
973 return -1;
974 }
975
976 /* add the duplicate fd, and optionally the opaque string, to the fd set */
977 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
978 &error_abort);
979 g_free(fdinfo);
980
981 return 0;
982 }
983
984 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
985 {
986 int fd;
987
988 fd = qemu_opt_get_number(opts, "fd", -1);
989 close(fd);
990
991 return 0;
992 }
993 #endif
994
995 /***********************************************************/
996 /* QEMU Block devices */
997
998 #define HD_OPTS "media=disk"
999 #define CDROM_OPTS "media=cdrom"
1000 #define FD_OPTS ""
1001 #define PFLASH_OPTS ""
1002 #define MTD_OPTS ""
1003 #define SD_OPTS ""
1004
1005 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1006 {
1007 BlockInterfaceType *block_default_type = opaque;
1008
1009 return drive_new(opts, *block_default_type, errp) == NULL;
1010 }
1011
1012 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1013 {
1014 if (qemu_opt_get(opts, "snapshot") == NULL) {
1015 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1016 }
1017 return 0;
1018 }
1019
1020 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1021 int index, const char *optstr)
1022 {
1023 QemuOpts *opts;
1024 DriveInfo *dinfo;
1025
1026 if (!enable || drive_get_by_index(type, index)) {
1027 return;
1028 }
1029
1030 opts = drive_add(type, index, NULL, optstr);
1031 if (snapshot) {
1032 drive_enable_snapshot(NULL, opts, NULL);
1033 }
1034
1035 dinfo = drive_new(opts, type, &error_abort);
1036 dinfo->is_default = true;
1037
1038 }
1039
1040 typedef struct BlockdevOptionsQueueEntry {
1041 BlockdevOptions *bdo;
1042 Location loc;
1043 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1044 } BlockdevOptionsQueueEntry;
1045
1046 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1047
1048 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1049 MachineClass *machine_class, int snapshot)
1050 {
1051 /*
1052 * If the currently selected machine wishes to override the
1053 * units-per-bus property of its default HBA interface type, do so
1054 * now.
1055 */
1056 if (machine_class->units_per_default_bus) {
1057 override_max_devs(machine_class->block_default_type,
1058 machine_class->units_per_default_bus);
1059 }
1060
1061 /* open the virtual block devices */
1062 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1063 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1064
1065 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1066 loc_push_restore(&bdo->loc);
1067 qmp_blockdev_add(bdo->bdo, &error_fatal);
1068 loc_pop(&bdo->loc);
1069 qapi_free_BlockdevOptions(bdo->bdo);
1070 g_free(bdo);
1071 }
1072 if (snapshot) {
1073 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1074 NULL, NULL);
1075 }
1076 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1077 &machine_class->block_default_type, &error_fatal)) {
1078 /* We printed help */
1079 exit(0);
1080 }
1081
1082 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1083 CDROM_OPTS);
1084 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1085 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1086
1087 }
1088
1089 static QemuOptsList qemu_smp_opts = {
1090 .name = "smp-opts",
1091 .implied_opt_name = "cpus",
1092 .merge_lists = true,
1093 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1094 .desc = {
1095 {
1096 .name = "cpus",
1097 .type = QEMU_OPT_NUMBER,
1098 }, {
1099 .name = "sockets",
1100 .type = QEMU_OPT_NUMBER,
1101 }, {
1102 .name = "dies",
1103 .type = QEMU_OPT_NUMBER,
1104 }, {
1105 .name = "cores",
1106 .type = QEMU_OPT_NUMBER,
1107 }, {
1108 .name = "threads",
1109 .type = QEMU_OPT_NUMBER,
1110 }, {
1111 .name = "maxcpus",
1112 .type = QEMU_OPT_NUMBER,
1113 },
1114 { /*End of list */ }
1115 },
1116 };
1117
1118 static void realtime_init(void)
1119 {
1120 if (enable_mlock) {
1121 if (os_mlock() < 0) {
1122 error_report("locking memory failed");
1123 exit(1);
1124 }
1125 }
1126 }
1127
1128
1129 static void configure_msg(QemuOpts *opts)
1130 {
1131 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1132 }
1133
1134
1135 /***********************************************************/
1136 /* USB devices */
1137
1138 static int usb_device_add(const char *devname)
1139 {
1140 USBDevice *dev = NULL;
1141
1142 if (!machine_usb(current_machine)) {
1143 return -1;
1144 }
1145
1146 dev = usbdevice_create(devname);
1147 if (!dev)
1148 return -1;
1149
1150 return 0;
1151 }
1152
1153 static int usb_parse(const char *cmdline)
1154 {
1155 int r;
1156 r = usb_device_add(cmdline);
1157 if (r < 0) {
1158 error_report("could not add USB device '%s'", cmdline);
1159 }
1160 return r;
1161 }
1162
1163 /***********************************************************/
1164 /* machine registration */
1165
1166 MachineState *current_machine;
1167
1168 static MachineClass *find_machine(const char *name, GSList *machines)
1169 {
1170 GSList *el;
1171
1172 for (el = machines; el; el = el->next) {
1173 MachineClass *mc = el->data;
1174
1175 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1176 return mc;
1177 }
1178 }
1179
1180 return NULL;
1181 }
1182
1183 static MachineClass *find_default_machine(GSList *machines)
1184 {
1185 GSList *el;
1186
1187 for (el = machines; el; el = el->next) {
1188 MachineClass *mc = el->data;
1189
1190 if (mc->is_default) {
1191 return mc;
1192 }
1193 }
1194
1195 return NULL;
1196 }
1197
1198 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1199 {
1200 ObjectProperty *prop;
1201 ObjectPropertyIterator iter;
1202
1203 if (!qemu_opt_has_help_opt(opts)) {
1204 return 0;
1205 }
1206
1207 object_property_iter_init(&iter, OBJECT(machine));
1208 while ((prop = object_property_iter_next(&iter))) {
1209 if (!prop->set) {
1210 continue;
1211 }
1212
1213 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1214 prop->name, prop->type);
1215 if (prop->description) {
1216 printf(" (%s)\n", prop->description);
1217 } else {
1218 printf("\n");
1219 }
1220 }
1221
1222 return 1;
1223 }
1224
1225 struct VMChangeStateEntry {
1226 VMChangeStateHandler *cb;
1227 void *opaque;
1228 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1229 int priority;
1230 };
1231
1232 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1233
1234 /**
1235 * qemu_add_vm_change_state_handler_prio:
1236 * @cb: the callback to invoke
1237 * @opaque: user data passed to the callback
1238 * @priority: low priorities execute first when the vm runs and the reverse is
1239 * true when the vm stops
1240 *
1241 * Register a callback function that is invoked when the vm starts or stops
1242 * running.
1243 *
1244 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1245 */
1246 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1247 VMChangeStateHandler *cb, void *opaque, int priority)
1248 {
1249 VMChangeStateEntry *e;
1250 VMChangeStateEntry *other;
1251
1252 e = g_malloc0(sizeof(*e));
1253 e->cb = cb;
1254 e->opaque = opaque;
1255 e->priority = priority;
1256
1257 /* Keep list sorted in ascending priority order */
1258 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1259 if (priority < other->priority) {
1260 QTAILQ_INSERT_BEFORE(other, e, entries);
1261 return e;
1262 }
1263 }
1264
1265 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1266 return e;
1267 }
1268
1269 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1270 void *opaque)
1271 {
1272 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1273 }
1274
1275 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1276 {
1277 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1278 g_free(e);
1279 }
1280
1281 void vm_state_notify(int running, RunState state)
1282 {
1283 VMChangeStateEntry *e, *next;
1284
1285 trace_vm_state_notify(running, state, RunState_str(state));
1286
1287 if (running) {
1288 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1289 e->cb(e->opaque, running, state);
1290 }
1291 } else {
1292 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1293 e->cb(e->opaque, running, state);
1294 }
1295 }
1296 }
1297
1298 static ShutdownCause reset_requested;
1299 static ShutdownCause shutdown_requested;
1300 static int shutdown_signal;
1301 static pid_t shutdown_pid;
1302 static int powerdown_requested;
1303 static int debug_requested;
1304 static int suspend_requested;
1305 static bool preconfig_exit_requested = true;
1306 static WakeupReason wakeup_reason;
1307 static NotifierList powerdown_notifiers =
1308 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1309 static NotifierList suspend_notifiers =
1310 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1311 static NotifierList wakeup_notifiers =
1312 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1313 static NotifierList shutdown_notifiers =
1314 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1315 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1316
1317 ShutdownCause qemu_shutdown_requested_get(void)
1318 {
1319 return shutdown_requested;
1320 }
1321
1322 ShutdownCause qemu_reset_requested_get(void)
1323 {
1324 return reset_requested;
1325 }
1326
1327 static int qemu_shutdown_requested(void)
1328 {
1329 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1330 }
1331
1332 static void qemu_kill_report(void)
1333 {
1334 if (!qtest_driver() && shutdown_signal) {
1335 if (shutdown_pid == 0) {
1336 /* This happens for eg ^C at the terminal, so it's worth
1337 * avoiding printing an odd message in that case.
1338 */
1339 error_report("terminating on signal %d", shutdown_signal);
1340 } else {
1341 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1342
1343 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1344 shutdown_signal, shutdown_pid,
1345 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1346 g_free(shutdown_cmd);
1347 }
1348 shutdown_signal = 0;
1349 }
1350 }
1351
1352 static ShutdownCause qemu_reset_requested(void)
1353 {
1354 ShutdownCause r = reset_requested;
1355
1356 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1357 reset_requested = SHUTDOWN_CAUSE_NONE;
1358 return r;
1359 }
1360 return SHUTDOWN_CAUSE_NONE;
1361 }
1362
1363 static int qemu_suspend_requested(void)
1364 {
1365 int r = suspend_requested;
1366 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1367 suspend_requested = 0;
1368 return r;
1369 }
1370 return false;
1371 }
1372
1373 static WakeupReason qemu_wakeup_requested(void)
1374 {
1375 return wakeup_reason;
1376 }
1377
1378 static int qemu_powerdown_requested(void)
1379 {
1380 int r = powerdown_requested;
1381 powerdown_requested = 0;
1382 return r;
1383 }
1384
1385 static int qemu_debug_requested(void)
1386 {
1387 int r = debug_requested;
1388 debug_requested = 0;
1389 return r;
1390 }
1391
1392 void qemu_exit_preconfig_request(void)
1393 {
1394 preconfig_exit_requested = true;
1395 }
1396
1397 /*
1398 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1399 */
1400 void qemu_system_reset(ShutdownCause reason)
1401 {
1402 MachineClass *mc;
1403
1404 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1405
1406 cpu_synchronize_all_states();
1407
1408 if (mc && mc->reset) {
1409 mc->reset(current_machine);
1410 } else {
1411 qemu_devices_reset();
1412 }
1413 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1414 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1415 }
1416 cpu_synchronize_all_post_reset();
1417 }
1418
1419 /*
1420 * Wake the VM after suspend.
1421 */
1422 static void qemu_system_wakeup(void)
1423 {
1424 MachineClass *mc;
1425
1426 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1427
1428 if (mc && mc->wakeup) {
1429 mc->wakeup(current_machine);
1430 }
1431 }
1432
1433 void qemu_system_guest_panicked(GuestPanicInformation *info)
1434 {
1435 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1436
1437 if (current_cpu) {
1438 current_cpu->crash_occurred = true;
1439 }
1440 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1441 !!info, info);
1442 vm_stop(RUN_STATE_GUEST_PANICKED);
1443 if (!no_shutdown) {
1444 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1445 !!info, info);
1446 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1447 }
1448
1449 if (info) {
1450 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1451 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1452 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1453 info->u.hyper_v.arg1,
1454 info->u.hyper_v.arg2,
1455 info->u.hyper_v.arg3,
1456 info->u.hyper_v.arg4,
1457 info->u.hyper_v.arg5);
1458 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1459 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1460 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1461 info->u.s390.core,
1462 S390CrashReason_str(info->u.s390.reason),
1463 info->u.s390.psw_mask,
1464 info->u.s390.psw_addr);
1465 }
1466 qapi_free_GuestPanicInformation(info);
1467 }
1468 }
1469
1470 void qemu_system_guest_crashloaded(GuestPanicInformation *info)
1471 {
1472 qemu_log_mask(LOG_GUEST_ERROR, "Guest crash loaded");
1473
1474 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN,
1475 !!info, info);
1476
1477 if (info) {
1478 qapi_free_GuestPanicInformation(info);
1479 }
1480 }
1481
1482 void qemu_system_reset_request(ShutdownCause reason)
1483 {
1484 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1485 shutdown_requested = reason;
1486 } else {
1487 reset_requested = reason;
1488 }
1489 cpu_stop_current();
1490 qemu_notify_event();
1491 }
1492
1493 static void qemu_system_suspend(void)
1494 {
1495 pause_all_vcpus();
1496 notifier_list_notify(&suspend_notifiers, NULL);
1497 runstate_set(RUN_STATE_SUSPENDED);
1498 qapi_event_send_suspend();
1499 }
1500
1501 void qemu_system_suspend_request(void)
1502 {
1503 if (runstate_check(RUN_STATE_SUSPENDED)) {
1504 return;
1505 }
1506 suspend_requested = 1;
1507 cpu_stop_current();
1508 qemu_notify_event();
1509 }
1510
1511 void qemu_register_suspend_notifier(Notifier *notifier)
1512 {
1513 notifier_list_add(&suspend_notifiers, notifier);
1514 }
1515
1516 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1517 {
1518 trace_system_wakeup_request(reason);
1519
1520 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1521 error_setg(errp,
1522 "Unable to wake up: guest is not in suspended state");
1523 return;
1524 }
1525 if (!(wakeup_reason_mask & (1 << reason))) {
1526 return;
1527 }
1528 runstate_set(RUN_STATE_RUNNING);
1529 wakeup_reason = reason;
1530 qemu_notify_event();
1531 }
1532
1533 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1534 {
1535 if (enabled) {
1536 wakeup_reason_mask |= (1 << reason);
1537 } else {
1538 wakeup_reason_mask &= ~(1 << reason);
1539 }
1540 }
1541
1542 void qemu_register_wakeup_notifier(Notifier *notifier)
1543 {
1544 notifier_list_add(&wakeup_notifiers, notifier);
1545 }
1546
1547 void qemu_register_wakeup_support(void)
1548 {
1549 wakeup_suspend_enabled = true;
1550 }
1551
1552 bool qemu_wakeup_suspend_enabled(void)
1553 {
1554 return wakeup_suspend_enabled;
1555 }
1556
1557 void qemu_system_killed(int signal, pid_t pid)
1558 {
1559 shutdown_signal = signal;
1560 shutdown_pid = pid;
1561 no_shutdown = 0;
1562
1563 /* Cannot call qemu_system_shutdown_request directly because
1564 * we are in a signal handler.
1565 */
1566 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1567 qemu_notify_event();
1568 }
1569
1570 void qemu_system_shutdown_request(ShutdownCause reason)
1571 {
1572 trace_qemu_system_shutdown_request(reason);
1573 replay_shutdown_request(reason);
1574 shutdown_requested = reason;
1575 qemu_notify_event();
1576 }
1577
1578 static void qemu_system_powerdown(void)
1579 {
1580 qapi_event_send_powerdown();
1581 notifier_list_notify(&powerdown_notifiers, NULL);
1582 }
1583
1584 static void qemu_system_shutdown(ShutdownCause cause)
1585 {
1586 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1587 notifier_list_notify(&shutdown_notifiers, &cause);
1588 }
1589
1590 void qemu_system_powerdown_request(void)
1591 {
1592 trace_qemu_system_powerdown_request();
1593 powerdown_requested = 1;
1594 qemu_notify_event();
1595 }
1596
1597 void qemu_register_powerdown_notifier(Notifier *notifier)
1598 {
1599 notifier_list_add(&powerdown_notifiers, notifier);
1600 }
1601
1602 void qemu_register_shutdown_notifier(Notifier *notifier)
1603 {
1604 notifier_list_add(&shutdown_notifiers, notifier);
1605 }
1606
1607 void qemu_system_debug_request(void)
1608 {
1609 debug_requested = 1;
1610 qemu_notify_event();
1611 }
1612
1613 static bool main_loop_should_exit(void)
1614 {
1615 RunState r;
1616 ShutdownCause request;
1617
1618 if (preconfig_exit_requested) {
1619 if (runstate_check(RUN_STATE_PRECONFIG)) {
1620 runstate_set(RUN_STATE_PRELAUNCH);
1621 }
1622 preconfig_exit_requested = false;
1623 return true;
1624 }
1625 if (qemu_debug_requested()) {
1626 vm_stop(RUN_STATE_DEBUG);
1627 }
1628 if (qemu_suspend_requested()) {
1629 qemu_system_suspend();
1630 }
1631 request = qemu_shutdown_requested();
1632 if (request) {
1633 qemu_kill_report();
1634 qemu_system_shutdown(request);
1635 if (no_shutdown) {
1636 vm_stop(RUN_STATE_SHUTDOWN);
1637 } else {
1638 return true;
1639 }
1640 }
1641 request = qemu_reset_requested();
1642 if (request) {
1643 pause_all_vcpus();
1644 qemu_system_reset(request);
1645 resume_all_vcpus();
1646 /*
1647 * runstate can change in pause_all_vcpus()
1648 * as iothread mutex is unlocked
1649 */
1650 if (!runstate_check(RUN_STATE_RUNNING) &&
1651 !runstate_check(RUN_STATE_INMIGRATE) &&
1652 !runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1653 runstate_set(RUN_STATE_PRELAUNCH);
1654 }
1655 }
1656 if (qemu_wakeup_requested()) {
1657 pause_all_vcpus();
1658 qemu_system_wakeup();
1659 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1660 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1661 resume_all_vcpus();
1662 qapi_event_send_wakeup();
1663 }
1664 if (qemu_powerdown_requested()) {
1665 qemu_system_powerdown();
1666 }
1667 if (qemu_vmstop_requested(&r)) {
1668 vm_stop(r);
1669 }
1670 return false;
1671 }
1672
1673 static void main_loop(void)
1674 {
1675 #ifdef CONFIG_PROFILER
1676 int64_t ti;
1677 #endif
1678 while (!main_loop_should_exit()) {
1679 #ifdef CONFIG_PROFILER
1680 ti = profile_getclock();
1681 #endif
1682 main_loop_wait(false);
1683 #ifdef CONFIG_PROFILER
1684 dev_time += profile_getclock() - ti;
1685 #endif
1686 }
1687 }
1688
1689 static void version(void)
1690 {
1691 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1692 QEMU_COPYRIGHT "\n");
1693 }
1694
1695 static void help(int exitcode)
1696 {
1697 version();
1698 printf("usage: %s [options] [disk_image]\n\n"
1699 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1700 error_get_progname());
1701
1702 #define QEMU_OPTIONS_GENERATE_HELP
1703 #include "qemu-options-wrapper.h"
1704
1705 printf("\nDuring emulation, the following keys are useful:\n"
1706 "ctrl-alt-f toggle full screen\n"
1707 "ctrl-alt-n switch to virtual console 'n'\n"
1708 "ctrl-alt toggle mouse and keyboard grab\n"
1709 "\n"
1710 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1711 "\n"
1712 QEMU_HELP_BOTTOM "\n");
1713
1714 exit(exitcode);
1715 }
1716
1717 #define HAS_ARG 0x0001
1718
1719 typedef struct QEMUOption {
1720 const char *name;
1721 int flags;
1722 int index;
1723 uint32_t arch_mask;
1724 } QEMUOption;
1725
1726 static const QEMUOption qemu_options[] = {
1727 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1728 #define QEMU_OPTIONS_GENERATE_OPTIONS
1729 #include "qemu-options-wrapper.h"
1730 { NULL },
1731 };
1732
1733 typedef struct VGAInterfaceInfo {
1734 const char *opt_name; /* option name */
1735 const char *name; /* human-readable name */
1736 /* Class names indicating that support is available.
1737 * If no class is specified, the interface is always available */
1738 const char *class_names[2];
1739 } VGAInterfaceInfo;
1740
1741 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1742 [VGA_NONE] = {
1743 .opt_name = "none",
1744 .name = "no graphic card",
1745 },
1746 [VGA_STD] = {
1747 .opt_name = "std",
1748 .name = "standard VGA",
1749 .class_names = { "VGA", "isa-vga" },
1750 },
1751 [VGA_CIRRUS] = {
1752 .opt_name = "cirrus",
1753 .name = "Cirrus VGA",
1754 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1755 },
1756 [VGA_VMWARE] = {
1757 .opt_name = "vmware",
1758 .name = "VMWare SVGA",
1759 .class_names = { "vmware-svga" },
1760 },
1761 [VGA_VIRTIO] = {
1762 .opt_name = "virtio",
1763 .name = "Virtio VGA",
1764 .class_names = { "virtio-vga" },
1765 },
1766 [VGA_QXL] = {
1767 .opt_name = "qxl",
1768 .name = "QXL VGA",
1769 .class_names = { "qxl-vga" },
1770 },
1771 [VGA_TCX] = {
1772 .opt_name = "tcx",
1773 .name = "TCX framebuffer",
1774 .class_names = { "SUNW,tcx" },
1775 },
1776 [VGA_CG3] = {
1777 .opt_name = "cg3",
1778 .name = "CG3 framebuffer",
1779 .class_names = { "cgthree" },
1780 },
1781 [VGA_XENFB] = {
1782 .opt_name = "xenfb",
1783 .name = "Xen paravirtualized framebuffer",
1784 },
1785 };
1786
1787 static bool vga_interface_available(VGAInterfaceType t)
1788 {
1789 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1790
1791 assert(t < VGA_TYPE_MAX);
1792 return !ti->class_names[0] ||
1793 object_class_by_name(ti->class_names[0]) ||
1794 object_class_by_name(ti->class_names[1]);
1795 }
1796
1797 static const char *
1798 get_default_vga_model(const MachineClass *machine_class)
1799 {
1800 if (machine_class->default_display) {
1801 return machine_class->default_display;
1802 } else if (vga_interface_available(VGA_CIRRUS)) {
1803 return "cirrus";
1804 } else if (vga_interface_available(VGA_STD)) {
1805 return "std";
1806 }
1807
1808 return NULL;
1809 }
1810
1811 static void select_vgahw(const MachineClass *machine_class, const char *p)
1812 {
1813 const char *opts;
1814 int t;
1815
1816 if (g_str_equal(p, "help")) {
1817 const char *def = get_default_vga_model(machine_class);
1818
1819 for (t = 0; t < VGA_TYPE_MAX; t++) {
1820 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1821
1822 if (vga_interface_available(t) && ti->opt_name) {
1823 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1824 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1825 }
1826 }
1827 exit(0);
1828 }
1829
1830 assert(vga_interface_type == VGA_NONE);
1831 for (t = 0; t < VGA_TYPE_MAX; t++) {
1832 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1833 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1834 if (!vga_interface_available(t)) {
1835 error_report("%s not available", ti->name);
1836 exit(1);
1837 }
1838 vga_interface_type = t;
1839 break;
1840 }
1841 }
1842 if (t == VGA_TYPE_MAX) {
1843 invalid_vga:
1844 error_report("unknown vga type: %s", p);
1845 exit(1);
1846 }
1847 while (*opts) {
1848 const char *nextopt;
1849
1850 if (strstart(opts, ",retrace=", &nextopt)) {
1851 opts = nextopt;
1852 if (strstart(opts, "dumb", &nextopt))
1853 vga_retrace_method = VGA_RETRACE_DUMB;
1854 else if (strstart(opts, "precise", &nextopt))
1855 vga_retrace_method = VGA_RETRACE_PRECISE;
1856 else goto invalid_vga;
1857 } else goto invalid_vga;
1858 opts = nextopt;
1859 }
1860 }
1861
1862 static void parse_display_qapi(const char *optarg)
1863 {
1864 DisplayOptions *opts;
1865 Visitor *v;
1866
1867 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1868
1869 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1870 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1871
1872 qapi_free_DisplayOptions(opts);
1873 visit_free(v);
1874 }
1875
1876 DisplayOptions *qmp_query_display_options(Error **errp)
1877 {
1878 return QAPI_CLONE(DisplayOptions, &dpy);
1879 }
1880
1881 static void parse_display(const char *p)
1882 {
1883 const char *opts;
1884
1885 if (is_help_option(p)) {
1886 qemu_display_help();
1887 exit(0);
1888 }
1889
1890 if (strstart(p, "sdl", &opts)) {
1891 /*
1892 * sdl DisplayType needs hand-crafted parser instead of
1893 * parse_display_qapi() due to some options not in
1894 * DisplayOptions, specifically:
1895 * - frame
1896 * Already deprecated.
1897 * - ctrl_grab + alt_grab
1898 * Not clear yet what happens to them long-term. Should
1899 * replaced by something better or deprecated and dropped.
1900 */
1901 dpy.type = DISPLAY_TYPE_SDL;
1902 while (*opts) {
1903 const char *nextopt;
1904
1905 if (strstart(opts, ",alt_grab=", &nextopt)) {
1906 opts = nextopt;
1907 if (strstart(opts, "on", &nextopt)) {
1908 alt_grab = 1;
1909 } else if (strstart(opts, "off", &nextopt)) {
1910 alt_grab = 0;
1911 } else {
1912 goto invalid_sdl_args;
1913 }
1914 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1915 opts = nextopt;
1916 if (strstart(opts, "on", &nextopt)) {
1917 ctrl_grab = 1;
1918 } else if (strstart(opts, "off", &nextopt)) {
1919 ctrl_grab = 0;
1920 } else {
1921 goto invalid_sdl_args;
1922 }
1923 } else if (strstart(opts, ",window_close=", &nextopt)) {
1924 opts = nextopt;
1925 dpy.has_window_close = true;
1926 if (strstart(opts, "on", &nextopt)) {
1927 dpy.window_close = true;
1928 } else if (strstart(opts, "off", &nextopt)) {
1929 dpy.window_close = false;
1930 } else {
1931 goto invalid_sdl_args;
1932 }
1933 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1934 opts = nextopt;
1935 dpy.has_show_cursor = true;
1936 if (strstart(opts, "on", &nextopt)) {
1937 dpy.show_cursor = true;
1938 } else if (strstart(opts, "off", &nextopt)) {
1939 dpy.show_cursor = false;
1940 } else {
1941 goto invalid_sdl_args;
1942 }
1943 } else if (strstart(opts, ",gl=", &nextopt)) {
1944 opts = nextopt;
1945 dpy.has_gl = true;
1946 if (strstart(opts, "on", &nextopt)) {
1947 dpy.gl = DISPLAYGL_MODE_ON;
1948 } else if (strstart(opts, "core", &nextopt)) {
1949 dpy.gl = DISPLAYGL_MODE_CORE;
1950 } else if (strstart(opts, "es", &nextopt)) {
1951 dpy.gl = DISPLAYGL_MODE_ES;
1952 } else if (strstart(opts, "off", &nextopt)) {
1953 dpy.gl = DISPLAYGL_MODE_OFF;
1954 } else {
1955 goto invalid_sdl_args;
1956 }
1957 } else {
1958 invalid_sdl_args:
1959 error_report("invalid SDL option string");
1960 exit(1);
1961 }
1962 opts = nextopt;
1963 }
1964 } else if (strstart(p, "vnc", &opts)) {
1965 /*
1966 * vnc isn't a (local) DisplayType but a protocol for remote
1967 * display access.
1968 */
1969 if (*opts == '=') {
1970 vnc_parse(opts + 1, &error_fatal);
1971 } else {
1972 error_report("VNC requires a display argument vnc=<display>");
1973 exit(1);
1974 }
1975 } else {
1976 parse_display_qapi(p);
1977 }
1978 }
1979
1980 char *qemu_find_file(int type, const char *name)
1981 {
1982 int i;
1983 const char *subdir;
1984 char *buf;
1985
1986 /* Try the name as a straight path first */
1987 if (access(name, R_OK) == 0) {
1988 trace_load_file(name, name);
1989 return g_strdup(name);
1990 }
1991
1992 switch (type) {
1993 case QEMU_FILE_TYPE_BIOS:
1994 subdir = "";
1995 break;
1996 case QEMU_FILE_TYPE_KEYMAP:
1997 subdir = "keymaps/";
1998 break;
1999 default:
2000 abort();
2001 }
2002
2003 for (i = 0; i < data_dir_idx; i++) {
2004 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2005 if (access(buf, R_OK) == 0) {
2006 trace_load_file(name, buf);
2007 return buf;
2008 }
2009 g_free(buf);
2010 }
2011 return NULL;
2012 }
2013
2014 static void qemu_add_data_dir(const char *path)
2015 {
2016 int i;
2017
2018 if (path == NULL) {
2019 return;
2020 }
2021 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2022 return;
2023 }
2024 for (i = 0; i < data_dir_idx; i++) {
2025 if (strcmp(data_dir[i], path) == 0) {
2026 return; /* duplicate */
2027 }
2028 }
2029 data_dir[data_dir_idx++] = g_strdup(path);
2030 }
2031
2032 static inline bool nonempty_str(const char *str)
2033 {
2034 return str && *str;
2035 }
2036
2037 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2038 {
2039 gchar *buf;
2040 size_t size;
2041 const char *name, *file, *str;
2042 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2043
2044 if (fw_cfg == NULL) {
2045 error_setg(errp, "fw_cfg device not available");
2046 return -1;
2047 }
2048 name = qemu_opt_get(opts, "name");
2049 file = qemu_opt_get(opts, "file");
2050 str = qemu_opt_get(opts, "string");
2051
2052 /* we need name and either a file or the content string */
2053 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2054 error_setg(errp, "invalid argument(s)");
2055 return -1;
2056 }
2057 if (nonempty_str(file) && nonempty_str(str)) {
2058 error_setg(errp, "file and string are mutually exclusive");
2059 return -1;
2060 }
2061 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2062 error_setg(errp, "name too long (max. %d char)",
2063 FW_CFG_MAX_FILE_PATH - 1);
2064 return -1;
2065 }
2066 if (strncmp(name, "opt/", 4) != 0) {
2067 warn_report("externally provided fw_cfg item names "
2068 "should be prefixed with \"opt/\"");
2069 }
2070 if (nonempty_str(str)) {
2071 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2072 buf = g_memdup(str, size);
2073 } else {
2074 GError *err = NULL;
2075 if (!g_file_get_contents(file, &buf, &size, &err)) {
2076 error_setg(errp, "can't load %s: %s", file, err->message);
2077 g_error_free(err);
2078 return -1;
2079 }
2080 }
2081 /* For legacy, keep user files in a specific global order. */
2082 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2083 fw_cfg_add_file(fw_cfg, name, buf, size);
2084 fw_cfg_reset_order_override(fw_cfg);
2085 return 0;
2086 }
2087
2088 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2089 {
2090 return qdev_device_help(opts);
2091 }
2092
2093 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2094 {
2095 DeviceState *dev;
2096
2097 dev = qdev_device_add(opts, errp);
2098 if (!dev && *errp) {
2099 error_report_err(*errp);
2100 return -1;
2101 } else if (dev) {
2102 object_unref(OBJECT(dev));
2103 }
2104 return 0;
2105 }
2106
2107 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2108 {
2109 Error *local_err = NULL;
2110
2111 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2112 if (local_err) {
2113 error_propagate(errp, local_err);
2114 return -1;
2115 }
2116 exit(0);
2117 }
2118 return 0;
2119 }
2120
2121 #ifdef CONFIG_VIRTFS
2122 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2123 {
2124 return qemu_fsdev_add(opts, errp);
2125 }
2126 #endif
2127
2128 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2129 {
2130 return monitor_init_opts(opts, errp);
2131 }
2132
2133 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2134 {
2135 static int monitor_device_index = 0;
2136 QemuOpts *opts;
2137 const char *p;
2138 char label[32];
2139
2140 if (strstart(optarg, "chardev:", &p)) {
2141 snprintf(label, sizeof(label), "%s", p);
2142 } else {
2143 snprintf(label, sizeof(label), "compat_monitor%d",
2144 monitor_device_index);
2145 opts = qemu_chr_parse_compat(label, optarg, true);
2146 if (!opts) {
2147 error_report("parse error: %s", optarg);
2148 exit(1);
2149 }
2150 }
2151
2152 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2153 qemu_opt_set(opts, "mode", mode, &error_abort);
2154 qemu_opt_set(opts, "chardev", label, &error_abort);
2155 if (!strcmp(mode, "control")) {
2156 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2157 } else {
2158 assert(pretty == false);
2159 }
2160 monitor_device_index++;
2161 }
2162
2163 struct device_config {
2164 enum {
2165 DEV_USB, /* -usbdevice */
2166 DEV_SERIAL, /* -serial */
2167 DEV_PARALLEL, /* -parallel */
2168 DEV_DEBUGCON, /* -debugcon */
2169 DEV_GDB, /* -gdb, -s */
2170 DEV_SCLP, /* s390 sclp */
2171 } type;
2172 const char *cmdline;
2173 Location loc;
2174 QTAILQ_ENTRY(device_config) next;
2175 };
2176
2177 static QTAILQ_HEAD(, device_config) device_configs =
2178 QTAILQ_HEAD_INITIALIZER(device_configs);
2179
2180 static void add_device_config(int type, const char *cmdline)
2181 {
2182 struct device_config *conf;
2183
2184 conf = g_malloc0(sizeof(*conf));
2185 conf->type = type;
2186 conf->cmdline = cmdline;
2187 loc_save(&conf->loc);
2188 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2189 }
2190
2191 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2192 {
2193 struct device_config *conf;
2194 int rc;
2195
2196 QTAILQ_FOREACH(conf, &device_configs, next) {
2197 if (conf->type != type)
2198 continue;
2199 loc_push_restore(&conf->loc);
2200 rc = func(conf->cmdline);
2201 loc_pop(&conf->loc);
2202 if (rc) {
2203 return rc;
2204 }
2205 }
2206 return 0;
2207 }
2208
2209 static int serial_parse(const char *devname)
2210 {
2211 int index = num_serial_hds;
2212 char label[32];
2213
2214 if (strcmp(devname, "none") == 0)
2215 return 0;
2216 snprintf(label, sizeof(label), "serial%d", index);
2217 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2218
2219 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2220 if (!serial_hds[index]) {
2221 error_report("could not connect serial device"
2222 " to character backend '%s'", devname);
2223 return -1;
2224 }
2225 num_serial_hds++;
2226 return 0;
2227 }
2228
2229 Chardev *serial_hd(int i)
2230 {
2231 assert(i >= 0);
2232 if (i < num_serial_hds) {
2233 return serial_hds[i];
2234 }
2235 return NULL;
2236 }
2237
2238 int serial_max_hds(void)
2239 {
2240 return num_serial_hds;
2241 }
2242
2243 static int parallel_parse(const char *devname)
2244 {
2245 static int index = 0;
2246 char label[32];
2247
2248 if (strcmp(devname, "none") == 0)
2249 return 0;
2250 if (index == MAX_PARALLEL_PORTS) {
2251 error_report("too many parallel ports");
2252 exit(1);
2253 }
2254 snprintf(label, sizeof(label), "parallel%d", index);
2255 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2256 if (!parallel_hds[index]) {
2257 error_report("could not connect parallel device"
2258 " to character backend '%s'", devname);
2259 return -1;
2260 }
2261 index++;
2262 return 0;
2263 }
2264
2265 static int debugcon_parse(const char *devname)
2266 {
2267 QemuOpts *opts;
2268
2269 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2270 error_report("invalid character backend '%s'", devname);
2271 exit(1);
2272 }
2273 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2274 if (!opts) {
2275 error_report("already have a debugcon device");
2276 exit(1);
2277 }
2278 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2279 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2280 return 0;
2281 }
2282
2283 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2284 {
2285 const MachineClass *mc1 = a, *mc2 = b;
2286 int res;
2287
2288 if (mc1->family == NULL) {
2289 if (mc2->family == NULL) {
2290 /* Compare standalone machine types against each other; they sort
2291 * in increasing order.
2292 */
2293 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2294 object_class_get_name(OBJECT_CLASS(mc2)));
2295 }
2296
2297 /* Standalone machine types sort after families. */
2298 return 1;
2299 }
2300
2301 if (mc2->family == NULL) {
2302 /* Families sort before standalone machine types. */
2303 return -1;
2304 }
2305
2306 /* Families sort between each other alphabetically increasingly. */
2307 res = strcmp(mc1->family, mc2->family);
2308 if (res != 0) {
2309 return res;
2310 }
2311
2312 /* Within the same family, machine types sort in decreasing order. */
2313 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2314 object_class_get_name(OBJECT_CLASS(mc1)));
2315 }
2316
2317 static MachineClass *machine_parse(const char *name, GSList *machines)
2318 {
2319 MachineClass *mc;
2320 GSList *el;
2321
2322 if (is_help_option(name)) {
2323 printf("Supported machines are:\n");
2324 machines = g_slist_sort(machines, machine_class_cmp);
2325 for (el = machines; el; el = el->next) {
2326 MachineClass *mc = el->data;
2327 if (mc->alias) {
2328 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2329 }
2330 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2331 mc->is_default ? " (default)" : "",
2332 mc->deprecation_reason ? " (deprecated)" : "");
2333 }
2334 exit(0);
2335 }
2336
2337 mc = find_machine(name, machines);
2338 if (!mc) {
2339 error_report("unsupported machine type");
2340 error_printf("Use -machine help to list supported machines\n");
2341 exit(1);
2342 }
2343 return mc;
2344 }
2345
2346 void qemu_add_exit_notifier(Notifier *notify)
2347 {
2348 notifier_list_add(&exit_notifiers, notify);
2349 }
2350
2351 void qemu_remove_exit_notifier(Notifier *notify)
2352 {
2353 notifier_remove(notify);
2354 }
2355
2356 static void qemu_run_exit_notifiers(void)
2357 {
2358 notifier_list_notify(&exit_notifiers, NULL);
2359 }
2360
2361 static const char *pid_file;
2362 static Notifier qemu_unlink_pidfile_notifier;
2363
2364 static void qemu_unlink_pidfile(Notifier *n, void *data)
2365 {
2366 if (pid_file) {
2367 unlink(pid_file);
2368 }
2369 }
2370
2371 bool machine_init_done;
2372
2373 void qemu_add_machine_init_done_notifier(Notifier *notify)
2374 {
2375 notifier_list_add(&machine_init_done_notifiers, notify);
2376 if (machine_init_done) {
2377 notify->notify(notify, NULL);
2378 }
2379 }
2380
2381 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2382 {
2383 notifier_remove(notify);
2384 }
2385
2386 static void qemu_run_machine_init_done_notifiers(void)
2387 {
2388 machine_init_done = true;
2389 notifier_list_notify(&machine_init_done_notifiers, NULL);
2390 }
2391
2392 static const QEMUOption *lookup_opt(int argc, char **argv,
2393 const char **poptarg, int *poptind)
2394 {
2395 const QEMUOption *popt;
2396 int optind = *poptind;
2397 char *r = argv[optind];
2398 const char *optarg;
2399
2400 loc_set_cmdline(argv, optind, 1);
2401 optind++;
2402 /* Treat --foo the same as -foo. */
2403 if (r[1] == '-')
2404 r++;
2405 popt = qemu_options;
2406 for(;;) {
2407 if (!popt->name) {
2408 error_report("invalid option");
2409 exit(1);
2410 }
2411 if (!strcmp(popt->name, r + 1))
2412 break;
2413 popt++;
2414 }
2415 if (popt->flags & HAS_ARG) {
2416 if (optind >= argc) {
2417 error_report("requires an argument");
2418 exit(1);
2419 }
2420 optarg = argv[optind++];
2421 loc_set_cmdline(argv, optind - 2, 2);
2422 } else {
2423 optarg = NULL;
2424 }
2425
2426 *poptarg = optarg;
2427 *poptind = optind;
2428
2429 return popt;
2430 }
2431
2432 static MachineClass *select_machine(void)
2433 {
2434 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2435 MachineClass *machine_class = find_default_machine(machines);
2436 const char *optarg;
2437 QemuOpts *opts;
2438 Location loc;
2439
2440 loc_push_none(&loc);
2441
2442 opts = qemu_get_machine_opts();
2443 qemu_opts_loc_restore(opts);
2444
2445 optarg = qemu_opt_get(opts, "type");
2446 if (optarg) {
2447 machine_class = machine_parse(optarg, machines);
2448 }
2449
2450 if (!machine_class) {
2451 error_report("No machine specified, and there is no default");
2452 error_printf("Use -machine help to list supported machines\n");
2453 exit(1);
2454 }
2455
2456 loc_pop(&loc);
2457 g_slist_free(machines);
2458 return machine_class;
2459 }
2460
2461 static int object_parse_property_opt(Object *obj,
2462 const char *name, const char *value,
2463 const char *skip, Error **errp)
2464 {
2465 Error *local_err = NULL;
2466
2467 if (g_str_equal(name, skip)) {
2468 return 0;
2469 }
2470
2471 object_property_parse(obj, value, name, &local_err);
2472
2473 if (local_err) {
2474 error_propagate(errp, local_err);
2475 return -1;
2476 }
2477
2478 return 0;
2479 }
2480
2481 static int machine_set_property(void *opaque,
2482 const char *name, const char *value,
2483 Error **errp)
2484 {
2485 g_autofree char *qom_name = g_strdup(name);
2486 char *p;
2487
2488 for (p = qom_name; *p; p++) {
2489 if (*p == '_') {
2490 *p = '-';
2491 }
2492 }
2493
2494 /* Legacy options do not correspond to MachineState properties. */
2495 if (g_str_equal(qom_name, "accel")) {
2496 return 0;
2497 }
2498 if (g_str_equal(qom_name, "igd-passthru")) {
2499 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2500 return 0;
2501 }
2502 if (g_str_equal(qom_name, "kvm-shadow-mem") ||
2503 g_str_equal(qom_name, "kernel-irqchip")) {
2504 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2505 return 0;
2506 }
2507
2508 return object_parse_property_opt(opaque, name, value, "type", errp);
2509 }
2510
2511 /*
2512 * Initial object creation happens before all other
2513 * QEMU data types are created. The majority of objects
2514 * can be created at this point. The rng-egd object
2515 * cannot be created here, as it depends on the chardev
2516 * already existing.
2517 */
2518 static bool object_create_initial(const char *type, QemuOpts *opts)
2519 {
2520 if (user_creatable_print_help(type, opts)) {
2521 exit(0);
2522 }
2523
2524 /*
2525 * Objects should not be made "delayed" without a reason. If you
2526 * add one, state the reason in a comment!
2527 */
2528
2529 /* Reason: rng-egd property "chardev" */
2530 if (g_str_equal(type, "rng-egd")) {
2531 return false;
2532 }
2533
2534 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2535 /* Reason: cryptodev-vhost-user property "chardev" */
2536 if (g_str_equal(type, "cryptodev-vhost-user")) {
2537 return false;
2538 }
2539 #endif
2540
2541 /*
2542 * Reason: filter-* property "netdev" etc.
2543 */
2544 if (g_str_equal(type, "filter-buffer") ||
2545 g_str_equal(type, "filter-dump") ||
2546 g_str_equal(type, "filter-mirror") ||
2547 g_str_equal(type, "filter-redirector") ||
2548 g_str_equal(type, "colo-compare") ||
2549 g_str_equal(type, "filter-rewriter") ||
2550 g_str_equal(type, "filter-replay")) {
2551 return false;
2552 }
2553
2554 /* Memory allocation by backends needs to be done
2555 * after configure_accelerator() (due to the tcg_enabled()
2556 * checks at memory_region_init_*()).
2557 *
2558 * Also, allocation of large amounts of memory may delay
2559 * chardev initialization for too long, and trigger timeouts
2560 * on software that waits for a monitor socket to be created
2561 * (e.g. libvirt).
2562 */
2563 if (g_str_has_prefix(type, "memory-backend-")) {
2564 return false;
2565 }
2566
2567 return true;
2568 }
2569
2570
2571 /*
2572 * The remainder of object creation happens after the
2573 * creation of chardev, fsdev, net clients and device data types.
2574 */
2575 static bool object_create_delayed(const char *type, QemuOpts *opts)
2576 {
2577 return !object_create_initial(type, opts);
2578 }
2579
2580
2581 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2582 MachineClass *mc)
2583 {
2584 uint64_t sz;
2585 const char *mem_str;
2586 const ram_addr_t default_ram_size = mc->default_ram_size;
2587 QemuOpts *opts = qemu_find_opts_singleton("memory");
2588 Location loc;
2589
2590 loc_push_none(&loc);
2591 qemu_opts_loc_restore(opts);
2592
2593 sz = 0;
2594 mem_str = qemu_opt_get(opts, "size");
2595 if (mem_str) {
2596 if (!*mem_str) {
2597 error_report("missing 'size' option value");
2598 exit(EXIT_FAILURE);
2599 }
2600
2601 sz = qemu_opt_get_size(opts, "size", ram_size);
2602
2603 /* Fix up legacy suffix-less format */
2604 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2605 uint64_t overflow_check = sz;
2606
2607 sz *= MiB;
2608 if (sz / MiB != overflow_check) {
2609 error_report("too large 'size' option value");
2610 exit(EXIT_FAILURE);
2611 }
2612 }
2613 }
2614
2615 /* backward compatibility behaviour for case "-m 0" */
2616 if (sz == 0) {
2617 sz = default_ram_size;
2618 }
2619
2620 sz = QEMU_ALIGN_UP(sz, 8192);
2621 ram_size = sz;
2622 if (ram_size != sz) {
2623 error_report("ram size too large");
2624 exit(EXIT_FAILURE);
2625 }
2626
2627 /* store value for the future use */
2628 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2629 *maxram_size = ram_size;
2630
2631 if (qemu_opt_get(opts, "maxmem")) {
2632 uint64_t slots;
2633
2634 sz = qemu_opt_get_size(opts, "maxmem", 0);
2635 slots = qemu_opt_get_number(opts, "slots", 0);
2636 if (sz < ram_size) {
2637 error_report("invalid value of -m option maxmem: "
2638 "maximum memory size (0x%" PRIx64 ") must be at least "
2639 "the initial memory size (0x" RAM_ADDR_FMT ")",
2640 sz, ram_size);
2641 exit(EXIT_FAILURE);
2642 } else if (slots && sz == ram_size) {
2643 error_report("invalid value of -m option maxmem: "
2644 "memory slots were specified but maximum memory size "
2645 "(0x%" PRIx64 ") is equal to the initial memory size "
2646 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2647 exit(EXIT_FAILURE);
2648 }
2649
2650 *maxram_size = sz;
2651 *ram_slots = slots;
2652 } else if (qemu_opt_get(opts, "slots")) {
2653 error_report("invalid -m option value: missing 'maxmem' option");
2654 exit(EXIT_FAILURE);
2655 }
2656
2657 loc_pop(&loc);
2658 }
2659
2660 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2661 {
2662 GlobalProperty *g;
2663
2664 g = g_malloc0(sizeof(*g));
2665 g->driver = qemu_opt_get(opts, "driver");
2666 g->property = qemu_opt_get(opts, "property");
2667 g->value = qemu_opt_get(opts, "value");
2668 qdev_prop_register_global(g);
2669 return 0;
2670 }
2671
2672 static int qemu_read_default_config_file(void)
2673 {
2674 int ret;
2675
2676 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2677 if (ret < 0 && ret != -ENOENT) {
2678 return ret;
2679 }
2680
2681 return 0;
2682 }
2683
2684 static void user_register_global_props(void)
2685 {
2686 qemu_opts_foreach(qemu_find_opts("global"),
2687 global_init_func, NULL, NULL);
2688 }
2689
2690 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2691 {
2692 configure_icount(opts, errp);
2693 return 0;
2694 }
2695
2696 static int accelerator_set_property(void *opaque,
2697 const char *name, const char *value,
2698 Error **errp)
2699 {
2700 return object_parse_property_opt(opaque, name, value, "accel", errp);
2701 }
2702
2703 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2704 {
2705 bool *p_init_failed = opaque;
2706 const char *acc = qemu_opt_get(opts, "accel");
2707 AccelClass *ac = accel_find(acc);
2708 AccelState *accel;
2709 int ret;
2710
2711 if (!ac) {
2712 *p_init_failed = true;
2713 error_report("invalid accelerator %s", acc);
2714 return 0;
2715 }
2716 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2717 object_apply_compat_props(OBJECT(accel));
2718 qemu_opt_foreach(opts, accelerator_set_property,
2719 accel,
2720 &error_fatal);
2721
2722 ret = accel_init_machine(accel, current_machine);
2723 if (ret < 0) {
2724 *p_init_failed = true;
2725 error_report("failed to initialize %s: %s",
2726 acc, strerror(-ret));
2727 return 0;
2728 }
2729
2730 return 1;
2731 }
2732
2733 static void configure_accelerators(const char *progname)
2734 {
2735 const char *accel;
2736 bool init_failed = false;
2737
2738 qemu_opts_foreach(qemu_find_opts("icount"),
2739 do_configure_icount, NULL, &error_fatal);
2740
2741 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2742 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2743 char **accel_list, **tmp;
2744
2745 if (accel == NULL) {
2746 /* Select the default accelerator */
2747 bool have_tcg = accel_find("tcg");
2748 bool have_kvm = accel_find("kvm");
2749
2750 if (have_tcg && have_kvm) {
2751 if (g_str_has_suffix(progname, "kvm")) {
2752 /* If the program name ends with "kvm", we prefer KVM */
2753 accel = "kvm:tcg";
2754 } else {
2755 accel = "tcg:kvm";
2756 }
2757 } else if (have_kvm) {
2758 accel = "kvm";
2759 } else if (have_tcg) {
2760 accel = "tcg";
2761 } else {
2762 error_report("No accelerator selected and"
2763 " no default accelerator available");
2764 exit(1);
2765 }
2766 }
2767 accel_list = g_strsplit(accel, ":", 0);
2768
2769 for (tmp = accel_list; *tmp; tmp++) {
2770 /*
2771 * Filter invalid accelerators here, to prevent obscenities
2772 * such as "-machine accel=tcg,,thread=single".
2773 */
2774 if (accel_find(*tmp)) {
2775 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2776 } else {
2777 init_failed = true;
2778 error_report("invalid accelerator %s", *tmp);
2779 }
2780 }
2781 g_strfreev(accel_list);
2782 } else {
2783 if (accel != NULL) {
2784 error_report("The -accel and \"-machine accel=\" options are incompatible");
2785 exit(1);
2786 }
2787 }
2788
2789 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2790 do_configure_accelerator, &init_failed, &error_fatal)) {
2791 if (!init_failed) {
2792 error_report("no accelerator found");
2793 }
2794 exit(1);
2795 }
2796
2797 if (init_failed) {
2798 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2799 error_report("falling back to %s", ac->name);
2800 }
2801
2802 if (use_icount && !(tcg_enabled() || qtest_enabled())) {
2803 error_report("-icount is not allowed with hardware virtualization");
2804 exit(1);
2805 }
2806 }
2807
2808 int main(int argc, char **argv, char **envp)
2809 {
2810 int i;
2811 int snapshot, linux_boot;
2812 const char *initrd_filename;
2813 const char *kernel_filename, *kernel_cmdline;
2814 const char *boot_order = NULL;
2815 const char *boot_once = NULL;
2816 DisplayState *ds;
2817 QemuOpts *opts, *machine_opts;
2818 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2819 QemuOptsList *olist;
2820 int optind;
2821 const char *optarg;
2822 const char *loadvm = NULL;
2823 MachineClass *machine_class;
2824 const char *cpu_option;
2825 const char *vga_model = NULL;
2826 const char *qtest_chrdev = NULL;
2827 const char *qtest_log = NULL;
2828 const char *incoming = NULL;
2829 bool userconfig = true;
2830 bool nographic = false;
2831 int display_remote = 0;
2832 const char *log_mask = NULL;
2833 const char *log_file = NULL;
2834 char *trace_file = NULL;
2835 ram_addr_t maxram_size;
2836 uint64_t ram_slots = 0;
2837 FILE *vmstate_dump_file = NULL;
2838 Error *main_loop_err = NULL;
2839 Error *err = NULL;
2840 bool list_data_dirs = false;
2841 char *dir, **dirs;
2842 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2843 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2844
2845 os_set_line_buffering();
2846
2847 error_init(argv[0]);
2848 module_call_init(MODULE_INIT_TRACE);
2849
2850 qemu_init_cpu_list();
2851 qemu_init_cpu_loop();
2852
2853 qemu_mutex_lock_iothread();
2854
2855 atexit(qemu_run_exit_notifiers);
2856 qemu_init_exec_dir(argv[0]);
2857
2858 module_call_init(MODULE_INIT_QOM);
2859
2860 qemu_add_opts(&qemu_drive_opts);
2861 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2862 qemu_add_drive_opts(&qemu_common_drive_opts);
2863 qemu_add_drive_opts(&qemu_drive_opts);
2864 qemu_add_drive_opts(&bdrv_runtime_opts);
2865 qemu_add_opts(&qemu_chardev_opts);
2866 qemu_add_opts(&qemu_device_opts);
2867 qemu_add_opts(&qemu_netdev_opts);
2868 qemu_add_opts(&qemu_nic_opts);
2869 qemu_add_opts(&qemu_net_opts);
2870 qemu_add_opts(&qemu_rtc_opts);
2871 qemu_add_opts(&qemu_global_opts);
2872 qemu_add_opts(&qemu_mon_opts);
2873 qemu_add_opts(&qemu_trace_opts);
2874 qemu_plugin_add_opts();
2875 qemu_add_opts(&qemu_option_rom_opts);
2876 qemu_add_opts(&qemu_machine_opts);
2877 qemu_add_opts(&qemu_accel_opts);
2878 qemu_add_opts(&qemu_mem_opts);
2879 qemu_add_opts(&qemu_smp_opts);
2880 qemu_add_opts(&qemu_boot_opts);
2881 qemu_add_opts(&qemu_add_fd_opts);
2882 qemu_add_opts(&qemu_object_opts);
2883 qemu_add_opts(&qemu_tpmdev_opts);
2884 qemu_add_opts(&qemu_realtime_opts);
2885 qemu_add_opts(&qemu_overcommit_opts);
2886 qemu_add_opts(&qemu_msg_opts);
2887 qemu_add_opts(&qemu_name_opts);
2888 qemu_add_opts(&qemu_numa_opts);
2889 qemu_add_opts(&qemu_icount_opts);
2890 qemu_add_opts(&qemu_semihosting_config_opts);
2891 qemu_add_opts(&qemu_fw_cfg_opts);
2892 module_call_init(MODULE_INIT_OPTS);
2893
2894 runstate_init();
2895 precopy_infrastructure_init();
2896 postcopy_infrastructure_init();
2897 monitor_init_globals();
2898
2899 if (qcrypto_init(&err) < 0) {
2900 error_reportf_err(err, "cannot initialize crypto: ");
2901 exit(1);
2902 }
2903
2904 QTAILQ_INIT(&vm_change_state_head);
2905 os_setup_early_signal_handling();
2906
2907 cpu_option = NULL;
2908 snapshot = 0;
2909
2910 nb_nics = 0;
2911
2912 bdrv_init_with_whitelist();
2913
2914 autostart = 1;
2915
2916 /* first pass of option parsing */
2917 optind = 1;
2918 while (optind < argc) {
2919 if (argv[optind][0] != '-') {
2920 /* disk image */
2921 optind++;
2922 } else {
2923 const QEMUOption *popt;
2924
2925 popt = lookup_opt(argc, argv, &optarg, &optind);
2926 switch (popt->index) {
2927 case QEMU_OPTION_nouserconfig:
2928 userconfig = false;
2929 break;
2930 }
2931 }
2932 }
2933
2934 if (userconfig) {
2935 if (qemu_read_default_config_file() < 0) {
2936 exit(1);
2937 }
2938 }
2939
2940 /* second pass of option parsing */
2941 optind = 1;
2942 for(;;) {
2943 if (optind >= argc)
2944 break;
2945 if (argv[optind][0] != '-') {
2946 loc_set_cmdline(argv, optind, 1);
2947 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2948 } else {
2949 const QEMUOption *popt;
2950
2951 popt = lookup_opt(argc, argv, &optarg, &optind);
2952 if (!(popt->arch_mask & arch_type)) {
2953 error_report("Option not supported for this target");
2954 exit(1);
2955 }
2956 switch(popt->index) {
2957 case QEMU_OPTION_cpu:
2958 /* hw initialization will check this */
2959 cpu_option = optarg;
2960 break;
2961 case QEMU_OPTION_hda:
2962 case QEMU_OPTION_hdb:
2963 case QEMU_OPTION_hdc:
2964 case QEMU_OPTION_hdd:
2965 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2966 HD_OPTS);
2967 break;
2968 case QEMU_OPTION_blockdev:
2969 {
2970 Visitor *v;
2971 BlockdevOptionsQueueEntry *bdo;
2972
2973 v = qobject_input_visitor_new_str(optarg, "driver",
2974 &error_fatal);
2975
2976 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2977 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2978 &error_fatal);
2979 visit_free(v);
2980 loc_save(&bdo->loc);
2981 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2982 break;
2983 }
2984 case QEMU_OPTION_drive:
2985 if (drive_def(optarg) == NULL) {
2986 exit(1);
2987 }
2988 break;
2989 case QEMU_OPTION_set:
2990 if (qemu_set_option(optarg) != 0)
2991 exit(1);
2992 break;
2993 case QEMU_OPTION_global:
2994 if (qemu_global_option(optarg) != 0)
2995 exit(1);
2996 break;
2997 case QEMU_OPTION_mtdblock:
2998 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2999 break;
3000 case QEMU_OPTION_sd:
3001 drive_add(IF_SD, -1, optarg, SD_OPTS);
3002 break;
3003 case QEMU_OPTION_pflash:
3004 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3005 break;
3006 case QEMU_OPTION_snapshot:
3007 {
3008 Error *blocker = NULL;
3009 snapshot = 1;
3010 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3011 "-snapshot");
3012 replay_add_blocker(blocker);
3013 }
3014 break;
3015 case QEMU_OPTION_numa:
3016 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3017 optarg, true);
3018 if (!opts) {
3019 exit(1);
3020 }
3021 break;
3022 case QEMU_OPTION_display:
3023 parse_display(optarg);
3024 break;
3025 case QEMU_OPTION_nographic:
3026 olist = qemu_find_opts("machine");
3027 qemu_opts_parse_noisily(olist, "graphics=off", false);
3028 nographic = true;
3029 dpy.type = DISPLAY_TYPE_NONE;
3030 break;
3031 case QEMU_OPTION_curses:
3032 #ifdef CONFIG_CURSES
3033 dpy.type = DISPLAY_TYPE_CURSES;
3034 #else
3035 error_report("curses or iconv support is disabled");
3036 exit(1);
3037 #endif
3038 break;
3039 case QEMU_OPTION_portrait:
3040 graphic_rotate = 90;
3041 break;
3042 case QEMU_OPTION_rotate:
3043 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3044 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3045 graphic_rotate != 180 && graphic_rotate != 270) {
3046 error_report("only 90, 180, 270 deg rotation is available");
3047 exit(1);
3048 }
3049 break;
3050 case QEMU_OPTION_kernel:
3051 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3052 &error_abort);
3053 break;
3054 case QEMU_OPTION_initrd:
3055 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3056 &error_abort);
3057 break;
3058 case QEMU_OPTION_append:
3059 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3060 &error_abort);
3061 break;
3062 case QEMU_OPTION_dtb:
3063 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3064 &error_abort);
3065 break;
3066 case QEMU_OPTION_cdrom:
3067 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3068 break;
3069 case QEMU_OPTION_boot:
3070 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3071 optarg, true);
3072 if (!opts) {
3073 exit(1);
3074 }
3075 break;
3076 case QEMU_OPTION_fda:
3077 case QEMU_OPTION_fdb:
3078 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3079 optarg, FD_OPTS);
3080 break;
3081 case QEMU_OPTION_no_fd_bootchk:
3082 fd_bootchk = 0;
3083 break;
3084 case QEMU_OPTION_netdev:
3085 default_net = 0;
3086 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3087 exit(1);
3088 }
3089 break;
3090 case QEMU_OPTION_nic:
3091 default_net = 0;
3092 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3093 exit(1);
3094 }
3095 break;
3096 case QEMU_OPTION_net:
3097 default_net = 0;
3098 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3099 exit(1);
3100 }
3101 break;
3102 #ifdef CONFIG_LIBISCSI
3103 case QEMU_OPTION_iscsi:
3104 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3105 optarg, false);
3106 if (!opts) {
3107 exit(1);
3108 }
3109 break;
3110 #endif
3111 case QEMU_OPTION_audio_help:
3112 audio_legacy_help();
3113 exit (0);
3114 break;
3115 case QEMU_OPTION_audiodev:
3116 audio_parse_option(optarg);
3117 break;
3118 case QEMU_OPTION_soundhw:
3119 select_soundhw (optarg);
3120 break;
3121 case QEMU_OPTION_h:
3122 help(0);
3123 break;
3124 case QEMU_OPTION_version:
3125 version();
3126 exit(0);
3127 break;
3128 case QEMU_OPTION_m:
3129 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3130 optarg, true);
3131 if (!opts) {
3132 exit(EXIT_FAILURE);
3133 }
3134 break;
3135 #ifdef CONFIG_TPM
3136 case QEMU_OPTION_tpmdev:
3137 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3138 exit(1);
3139 }
3140 break;
3141 #endif
3142 case QEMU_OPTION_mempath:
3143 mem_path = optarg;
3144 break;
3145 case QEMU_OPTION_mem_prealloc:
3146 mem_prealloc = 1;
3147 break;
3148 case QEMU_OPTION_d:
3149 log_mask = optarg;
3150 break;
3151 case QEMU_OPTION_D:
3152 log_file = optarg;
3153 break;
3154 case QEMU_OPTION_DFILTER:
3155 qemu_set_dfilter_ranges(optarg, &error_fatal);
3156 break;
3157 case QEMU_OPTION_seed:
3158 qemu_guest_random_seed_main(optarg, &error_fatal);
3159 break;
3160 case QEMU_OPTION_s:
3161 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3162 break;
3163 case QEMU_OPTION_gdb:
3164 add_device_config(DEV_GDB, optarg);
3165 break;
3166 case QEMU_OPTION_L:
3167 if (is_help_option(optarg)) {
3168 list_data_dirs = true;
3169 } else {
3170 qemu_add_data_dir(optarg);
3171 }
3172 break;
3173 case QEMU_OPTION_bios:
3174 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3175 &error_abort);
3176 break;
3177 case QEMU_OPTION_singlestep:
3178 singlestep = 1;
3179 break;
3180 case QEMU_OPTION_S:
3181 autostart = 0;
3182 break;
3183 case QEMU_OPTION_k:
3184 keyboard_layout = optarg;
3185 break;
3186 case QEMU_OPTION_vga:
3187 vga_model = optarg;
3188 default_vga = 0;
3189 break;
3190 case QEMU_OPTION_g:
3191 {
3192 const char *p;
3193 int w, h, depth;
3194 p = optarg;
3195 w = strtol(p, (char **)&p, 10);
3196 if (w <= 0) {
3197 graphic_error:
3198 error_report("invalid resolution or depth");
3199 exit(1);
3200 }
3201 if (*p != 'x')
3202 goto graphic_error;
3203 p++;
3204 h = strtol(p, (char **)&p, 10);
3205 if (h <= 0)
3206 goto graphic_error;
3207 if (*p == 'x') {
3208 p++;
3209 depth = strtol(p, (char **)&p, 10);
3210 if (depth != 1 && depth != 2 && depth != 4 &&
3211 depth != 8 && depth != 15 && depth != 16 &&
3212 depth != 24 && depth != 32)
3213 goto graphic_error;
3214 } else if (*p == '\0') {
3215 depth = graphic_depth;
3216 } else {
3217 goto graphic_error;
3218 }
3219
3220 graphic_width = w;
3221 graphic_height = h;
3222 graphic_depth = depth;
3223 }
3224 break;
3225 case QEMU_OPTION_echr:
3226 {
3227 char *r;
3228 term_escape_char = strtol(optarg, &r, 0);
3229 if (r == optarg)
3230 printf("Bad argument to echr\n");
3231 break;
3232 }
3233 case QEMU_OPTION_monitor:
3234 default_monitor = 0;
3235 if (strncmp(optarg, "none", 4)) {
3236 monitor_parse(optarg, "readline", false);
3237 }
3238 break;
3239 case QEMU_OPTION_qmp:
3240 monitor_parse(optarg, "control", false);
3241 default_monitor = 0;
3242 break;
3243 case QEMU_OPTION_qmp_pretty:
3244 monitor_parse(optarg, "control", true);
3245 default_monitor = 0;
3246 break;
3247 case QEMU_OPTION_mon:
3248 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3249 true);
3250 if (!opts) {
3251 exit(1);
3252 }
3253 default_monitor = 0;
3254 break;
3255 case QEMU_OPTION_chardev:
3256 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3257 optarg, true);
3258 if (!opts) {
3259 exit(1);
3260 }
3261 break;
3262 case QEMU_OPTION_fsdev:
3263 olist = qemu_find_opts("fsdev");
3264 if (!olist) {
3265 error_report("fsdev support is disabled");
3266 exit(1);
3267 }
3268 opts = qemu_opts_parse_noisily(olist, optarg, true);
3269 if (!opts) {
3270 exit(1);
3271 }
3272 break;
3273 case QEMU_OPTION_virtfs: {
3274 QemuOpts *fsdev;
3275 QemuOpts *device;
3276 const char *writeout, *sock_fd, *socket, *path, *security_model,
3277 *multidevs;
3278
3279 olist = qemu_find_opts("virtfs");
3280 if (!olist) {
3281 error_report("virtfs support is disabled");
3282 exit(1);
3283 }
3284 opts = qemu_opts_parse_noisily(olist, optarg, true);
3285 if (!opts) {
3286 exit(1);
3287 }
3288
3289 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3290 qemu_opt_get(opts, "mount_tag") == NULL) {
3291 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3292 exit(1);
3293 }
3294 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3295 qemu_opts_id(opts) ?:
3296 qemu_opt_get(opts, "mount_tag"),
3297 1, NULL);
3298 if (!fsdev) {
3299 error_report("duplicate or invalid fsdev id: %s",
3300 qemu_opt_get(opts, "mount_tag"));
3301 exit(1);
3302 }
3303
3304 writeout = qemu_opt_get(opts, "writeout");
3305 if (writeout) {
3306 #ifdef CONFIG_SYNC_FILE_RANGE
3307 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3308 #else
3309 error_report("writeout=immediate not supported "
3310 "on this platform");
3311 exit(1);
3312 #endif
3313 }
3314 qemu_opt_set(fsdev, "fsdriver",
3315 qemu_opt_get(opts, "fsdriver"), &error_abort);
3316 path = qemu_opt_get(opts, "path");
3317 if (path) {
3318 qemu_opt_set(fsdev, "path", path, &error_abort);
3319 }
3320 security_model = qemu_opt_get(opts, "security_model");
3321 if (security_model) {
3322 qemu_opt_set(fsdev, "security_model", security_model,
3323 &error_abort);
3324 }
3325 socket = qemu_opt_get(opts, "socket");
3326 if (socket) {
3327 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3328 }
3329 sock_fd = qemu_opt_get(opts, "sock_fd");
3330 if (sock_fd) {
3331 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3332 }
3333
3334 qemu_opt_set_bool(fsdev, "readonly",
3335 qemu_opt_get_bool(opts, "readonly", 0),
3336 &error_abort);
3337 multidevs = qemu_opt_get(opts, "multidevs");
3338 if (multidevs) {
3339 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3340 }
3341 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3342 &error_abort);
3343 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3344 qemu_opt_set(device, "fsdev",
3345 qemu_opts_id(fsdev), &error_abort);
3346 qemu_opt_set(device, "mount_tag",
3347 qemu_opt_get(opts, "mount_tag"), &error_abort);
3348 break;
3349 }
3350 case QEMU_OPTION_serial:
3351 add_device_config(DEV_SERIAL, optarg);
3352 default_serial = 0;
3353 if (strncmp(optarg, "mon:", 4) == 0) {
3354 default_monitor = 0;
3355 }
3356 break;
3357 case QEMU_OPTION_watchdog:
3358 if (watchdog) {
3359 error_report("only one watchdog option may be given");
3360 return 1;
3361 }
3362 watchdog = optarg;
3363 break;
3364 case QEMU_OPTION_watchdog_action:
3365 if (select_watchdog_action(optarg) == -1) {
3366 error_report("unknown -watchdog-action parameter");
3367 exit(1);
3368 }
3369 break;
3370 case QEMU_OPTION_parallel:
3371 add_device_config(DEV_PARALLEL, optarg);
3372 default_parallel = 0;
3373 if (strncmp(optarg, "mon:", 4) == 0) {
3374 default_monitor = 0;
3375 }
3376 break;
3377 case QEMU_OPTION_debugcon:
3378 add_device_config(DEV_DEBUGCON, optarg);
3379 break;
3380 case QEMU_OPTION_loadvm:
3381 loadvm = optarg;
3382 break;
3383 case QEMU_OPTION_full_screen:
3384 dpy.has_full_screen = true;
3385 dpy.full_screen = true;
3386 break;
3387 case QEMU_OPTION_alt_grab:
3388 alt_grab = 1;
3389 break;
3390 case QEMU_OPTION_ctrl_grab:
3391 ctrl_grab = 1;
3392 break;
3393 case QEMU_OPTION_no_quit:
3394 dpy.has_window_close = true;
3395 dpy.window_close = false;
3396 break;
3397 case QEMU_OPTION_sdl:
3398 #ifdef CONFIG_SDL
3399 dpy.type = DISPLAY_TYPE_SDL;
3400 break;
3401 #else
3402 error_report("SDL support is disabled");
3403 exit(1);
3404 #endif
3405 case QEMU_OPTION_pidfile:
3406 pid_file = optarg;
3407 break;
3408 case QEMU_OPTION_win2k_hack:
3409 win2k_install_hack = 1;
3410 break;
3411 case QEMU_OPTION_acpitable:
3412 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3413 optarg, true);
3414 if (!opts) {
3415 exit(1);
3416 }
3417 acpi_table_add(opts, &error_fatal);
3418 break;
3419 case QEMU_OPTION_smbios:
3420 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3421 optarg, false);
3422 if (!opts) {
3423 exit(1);
3424 }
3425 smbios_entry_add(opts, &error_fatal);
3426 break;
3427 case QEMU_OPTION_fwcfg:
3428 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3429 optarg, true);
3430 if (opts == NULL) {
3431 exit(1);
3432 }
3433 break;
3434 case QEMU_OPTION_preconfig:
3435 preconfig_exit_requested = false;
3436 break;
3437 case QEMU_OPTION_enable_kvm:
3438 olist = qemu_find_opts("machine");
3439 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3440 break;
3441 case QEMU_OPTION_M:
3442 case QEMU_OPTION_machine:
3443 olist = qemu_find_opts("machine");
3444 opts = qemu_opts_parse_noisily(olist, optarg, true);
3445 if (!opts) {
3446 exit(1);
3447 }
3448 break;
3449 case QEMU_OPTION_no_kvm:
3450 olist = qemu_find_opts("machine");
3451 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3452 break;
3453 case QEMU_OPTION_accel:
3454 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3455 optarg, true);
3456 optarg = qemu_opt_get(accel_opts, "accel");
3457 if (!optarg || is_help_option(optarg)) {
3458 printf("Accelerators supported in QEMU binary:\n");
3459 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3460 false);
3461 for (el = accel_list; el; el = el->next) {
3462 gchar *typename = g_strdup(object_class_get_name(
3463 OBJECT_CLASS(el->data)));
3464 /* omit qtest which is used for tests only */
3465 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3466 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3467 gchar **optname = g_strsplit(typename,
3468 ACCEL_CLASS_SUFFIX, 0);
3469 printf("%s\n", optname[0]);
3470 g_strfreev(optname);
3471 }
3472 g_free(typename);
3473 }
3474 g_slist_free(accel_list);
3475 exit(0);
3476 }
3477 if (optarg && strchr(optarg, ':')) {
3478 error_report("Don't use ':' with -accel, "
3479 "use -M accel=... for now instead");
3480 exit(1);
3481 }
3482 break;
3483 case QEMU_OPTION_usb:
3484 olist = qemu_find_opts("machine");
3485 qemu_opts_parse_noisily(olist, "usb=on", false);
3486 break;
3487 case QEMU_OPTION_usbdevice:
3488 error_report("'-usbdevice' is deprecated, please use "
3489 "'-device usb-...' instead");
3490 olist = qemu_find_opts("machine");
3491 qemu_opts_parse_noisily(olist, "usb=on", false);
3492 add_device_config(DEV_USB, optarg);
3493 break;
3494 case QEMU_OPTION_device:
3495 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3496 optarg, true)) {
3497 exit(1);
3498 }
3499 break;
3500 case QEMU_OPTION_smp:
3501 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3502 optarg, true)) {
3503 exit(1);
3504 }
3505 break;
3506 case QEMU_OPTION_vnc:
3507 vnc_parse(optarg, &error_fatal);
3508 break;
3509 case QEMU_OPTION_no_acpi:
3510 acpi_enabled = 0;
3511 break;
3512 case QEMU_OPTION_no_hpet:
3513 no_hpet = 1;
3514 break;
3515 case QEMU_OPTION_no_reboot:
3516 no_reboot = 1;
3517 break;
3518 case QEMU_OPTION_no_shutdown:
3519 no_shutdown = 1;
3520 break;
3521 case QEMU_OPTION_show_cursor:
3522 warn_report("The -show-cursor option is deprecated, "
3523 "use -display {sdl,gtk},show-cursor=on instead");
3524 dpy.has_show_cursor = true;
3525 dpy.show_cursor = true;
3526 break;
3527 case QEMU_OPTION_uuid:
3528 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3529 error_report("failed to parse UUID string: wrong format");
3530 exit(1);
3531 }
3532 qemu_uuid_set = true;
3533 break;
3534 case QEMU_OPTION_option_rom:
3535 if (nb_option_roms >= MAX_OPTION_ROMS) {
3536 error_report("too many option ROMs");
3537 exit(1);
3538 }
3539 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3540 optarg, true);
3541 if (!opts) {
3542 exit(1);
3543 }
3544 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3545 option_rom[nb_option_roms].bootindex =
3546 qemu_opt_get_number(opts, "bootindex", -1);
3547 if (!option_rom[nb_option_roms].name) {
3548 error_report("Option ROM file is not specified");
3549 exit(1);
3550 }
3551 nb_option_roms++;
3552 break;
3553 case QEMU_OPTION_semihosting:
3554 qemu_semihosting_enable();
3555 break;
3556 case QEMU_OPTION_semihosting_config:
3557 if (qemu_semihosting_config_options(optarg) != 0) {
3558 exit(1);
3559 }
3560 break;
3561 case QEMU_OPTION_name:
3562 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3563 optarg, true);
3564 if (!opts) {
3565 exit(1);
3566 }
3567 break;
3568 case QEMU_OPTION_prom_env:
3569 if (nb_prom_envs >= MAX_PROM_ENVS) {
3570 error_report("too many prom variables");
3571 exit(1);
3572 }
3573 prom_envs[nb_prom_envs] = optarg;
3574 nb_prom_envs++;
3575 break;
3576 case QEMU_OPTION_old_param:
3577 old_param = 1;
3578 break;
3579 case QEMU_OPTION_rtc:
3580 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3581 false);
3582 if (!opts) {
3583 exit(1);
3584 }
3585 break;
3586 case QEMU_OPTION_tb_size:
3587 #ifndef CONFIG_TCG
3588 error_report("TCG is disabled");
3589 exit(1);
3590 #endif
3591 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3592 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3593 break;
3594 case QEMU_OPTION_icount:
3595 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3596 optarg, true);
3597 if (!icount_opts) {
3598 exit(1);
3599 }
3600 break;
3601 case QEMU_OPTION_incoming:
3602 if (!incoming) {
3603 runstate_set(RUN_STATE_INMIGRATE);
3604 }
3605 incoming = optarg;
3606 break;
3607 case QEMU_OPTION_only_migratable:
3608 only_migratable = 1;
3609 break;
3610 case QEMU_OPTION_nodefaults:
3611 has_defaults = 0;
3612 break;
3613 case QEMU_OPTION_xen_domid:
3614 if (!(xen_available())) {
3615 error_report("Option not supported for this target");
3616 exit(1);
3617 }
3618 xen_domid = atoi(optarg);
3619 break;
3620 case QEMU_OPTION_xen_attach:
3621 if (!(xen_available())) {
3622 error_report("Option not supported for this target");
3623 exit(1);
3624 }
3625 xen_mode = XEN_ATTACH;
3626 break;
3627 case QEMU_OPTION_xen_domid_restrict:
3628 if (!(xen_available())) {
3629 error_report("Option not supported for this target");
3630 exit(1);
3631 }
3632 xen_domid_restrict = true;
3633 break;
3634 case QEMU_OPTION_trace:
3635 g_free(trace_file);
3636 trace_file = trace_opt_parse(optarg);
3637 break;
3638 case QEMU_OPTION_plugin:
3639 qemu_plugin_opt_parse(optarg, &plugin_list);
3640 break;
3641 case QEMU_OPTION_readconfig:
3642 {
3643 int ret = qemu_read_config_file(optarg);
3644 if (ret < 0) {
3645 error_report("read config %s: %s", optarg,
3646 strerror(-ret));
3647 exit(1);
3648 }
3649 break;
3650 }
3651 case QEMU_OPTION_spice:
3652 olist = qemu_find_opts("spice");
3653 if (!olist) {
3654 error_report("spice support is disabled");
3655 exit(1);
3656 }
3657 opts = qemu_opts_parse_noisily(olist, optarg, false);
3658 if (!opts) {
3659 exit(1);
3660 }
3661 display_remote++;
3662 break;
3663 case QEMU_OPTION_writeconfig:
3664 {
3665 FILE *fp;
3666 if (strcmp(optarg, "-") == 0) {
3667 fp = stdout;
3668 } else {
3669 fp = fopen(optarg, "w");
3670 if (fp == NULL) {
3671 error_report("open %s: %s", optarg,
3672 strerror(errno));
3673 exit(1);
3674 }
3675 }
3676 qemu_config_write(fp);
3677 if (fp != stdout) {
3678 fclose(fp);
3679 }
3680 break;
3681 }
3682 case QEMU_OPTION_qtest:
3683 qtest_chrdev = optarg;
3684 break;
3685 case QEMU_OPTION_qtest_log:
3686 qtest_log = optarg;
3687 break;
3688 case QEMU_OPTION_sandbox:
3689 olist = qemu_find_opts("sandbox");
3690 if (!olist) {
3691 #ifndef CONFIG_SECCOMP
3692 error_report("-sandbox support is not enabled "
3693 "in this QEMU binary");
3694 #endif
3695 exit(1);
3696 }
3697
3698 opts = qemu_opts_parse_noisily(olist, optarg, true);
3699 if (!opts) {
3700 exit(1);
3701 }
3702 break;
3703 case QEMU_OPTION_add_fd:
3704 #ifndef _WIN32
3705 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3706 optarg, false);
3707 if (!opts) {
3708 exit(1);
3709 }
3710 #else
3711 error_report("File descriptor passing is disabled on this "
3712 "platform");
3713 exit(1);
3714 #endif
3715 break;
3716 case QEMU_OPTION_object:
3717 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3718 optarg, true);
3719 if (!opts) {
3720 exit(1);
3721 }
3722 break;
3723 case QEMU_OPTION_realtime:
3724 warn_report("'-realtime mlock=...' is deprecated, please use "
3725 "'-overcommit mem-lock=...' instead");
3726 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3727 optarg, false);
3728 if (!opts) {
3729 exit(1);
3730 }
3731 /* Don't override the -overcommit option if set */
3732 enable_mlock = enable_mlock ||
3733 qemu_opt_get_bool(opts, "mlock", true);
3734 break;
3735 case QEMU_OPTION_overcommit:
3736 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3737 optarg, false);
3738 if (!opts) {
3739 exit(1);
3740 }
3741 /* Don't override the -realtime option if set */
3742 enable_mlock = enable_mlock ||
3743 qemu_opt_get_bool(opts, "mem-lock", false);
3744 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3745 break;
3746 case QEMU_OPTION_msg:
3747 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3748 false);
3749 if (!opts) {
3750 exit(1);
3751 }
3752 configure_msg(opts);
3753 break;
3754 case QEMU_OPTION_dump_vmstate:
3755 if (vmstate_dump_file) {
3756 error_report("only one '-dump-vmstate' "
3757 "option may be given");
3758 exit(1);
3759 }
3760 vmstate_dump_file = fopen(optarg, "w");
3761 if (vmstate_dump_file == NULL) {
3762 error_report("open %s: %s", optarg, strerror(errno));
3763 exit(1);
3764 }
3765 break;
3766 case QEMU_OPTION_enable_sync_profile:
3767 qsp_enable();
3768 break;
3769 case QEMU_OPTION_nouserconfig:
3770 /* Nothing to be parsed here. Especially, do not error out below. */
3771 break;
3772 default:
3773 if (os_parse_cmd_args(popt->index, optarg)) {
3774 error_report("Option not supported in this build");
3775 exit(1);
3776 }
3777 }
3778 }
3779 }
3780 /*
3781 * Clear error location left behind by the loop.
3782 * Best done right after the loop. Do not insert code here!
3783 */
3784 loc_set_none();
3785
3786 user_register_global_props();
3787
3788 replay_configure(icount_opts);
3789
3790 if (incoming && !preconfig_exit_requested) {
3791 error_report("'preconfig' and 'incoming' options are "
3792 "mutually exclusive");
3793 exit(EXIT_FAILURE);
3794 }
3795
3796 configure_rtc(qemu_find_opts_singleton("rtc"));
3797
3798 machine_class = select_machine();
3799 object_set_machine_compat_props(machine_class->compat_props);
3800
3801 set_memory_options(&ram_slots, &maxram_size, machine_class);
3802
3803 os_daemonize();
3804 rcu_disable_atfork();
3805
3806 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3807 error_reportf_err(err, "cannot create PID file: ");
3808 exit(1);
3809 }
3810
3811 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3812 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3813
3814 if (qemu_init_main_loop(&main_loop_err)) {
3815 error_report_err(main_loop_err);
3816 exit(1);
3817 }
3818
3819 #ifdef CONFIG_SECCOMP
3820 olist = qemu_find_opts_err("sandbox", NULL);
3821 if (olist) {
3822 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3823 }
3824 #endif
3825
3826 qemu_opts_foreach(qemu_find_opts("name"),
3827 parse_name, NULL, &error_fatal);
3828
3829 #ifndef _WIN32
3830 qemu_opts_foreach(qemu_find_opts("add-fd"),
3831 parse_add_fd, NULL, &error_fatal);
3832
3833 qemu_opts_foreach(qemu_find_opts("add-fd"),
3834 cleanup_add_fd, NULL, &error_fatal);
3835 #endif
3836
3837 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3838 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3839 exit(0);
3840 }
3841 object_property_add_child(object_get_root(), "machine",
3842 OBJECT(current_machine), &error_abort);
3843 object_property_add_child(container_get(OBJECT(current_machine),
3844 "/unattached"),
3845 "sysbus", OBJECT(sysbus_get_default()),
3846 NULL);
3847
3848 if (machine_class->minimum_page_bits) {
3849 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3850 /* This would be a board error: specifying a minimum smaller than
3851 * a target's compile-time fixed setting.
3852 */
3853 g_assert_not_reached();
3854 }
3855 }
3856
3857 cpu_exec_init_all();
3858
3859 if (machine_class->hw_version) {
3860 qemu_set_hw_version(machine_class->hw_version);
3861 }
3862
3863 if (cpu_option && is_help_option(cpu_option)) {
3864 list_cpus(cpu_option);
3865 exit(0);
3866 }
3867
3868 if (!trace_init_backends()) {
3869 exit(1);
3870 }
3871 trace_init_file(trace_file);
3872
3873 /* Open the logfile at this point and set the log mask if necessary.
3874 */
3875 qemu_set_log_filename(log_file, &error_fatal);
3876 if (log_mask) {
3877 int mask;
3878 mask = qemu_str_to_log_mask(log_mask);
3879 if (!mask) {
3880 qemu_print_log_usage(stdout);
3881 exit(1);
3882 }
3883 qemu_set_log(mask);
3884 } else {
3885 qemu_set_log(0);
3886 }
3887
3888 /* add configured firmware directories */
3889 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3890 for (i = 0; dirs[i] != NULL; i++) {
3891 qemu_add_data_dir(dirs[i]);
3892 }
3893 g_strfreev(dirs);
3894
3895 /* try to find datadir relative to the executable path */
3896 dir = os_find_datadir();
3897 qemu_add_data_dir(dir);
3898 g_free(dir);
3899
3900 /* add the datadir specified when building */
3901 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3902
3903 /* -L help lists the data directories and exits. */
3904 if (list_data_dirs) {
3905 for (i = 0; i < data_dir_idx; i++) {
3906 printf("%s\n", data_dir[i]);
3907 }
3908 exit(0);
3909 }
3910
3911 /* machine_class: default to UP */
3912 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3913 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3914 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3915
3916 /* default to machine_class->default_cpus */
3917 current_machine->smp.cpus = machine_class->default_cpus;
3918 current_machine->smp.max_cpus = machine_class->default_cpus;
3919 current_machine->smp.cores = 1;
3920 current_machine->smp.threads = 1;
3921
3922 machine_class->smp_parse(current_machine,
3923 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3924
3925 /* sanity-check smp_cpus and max_cpus against machine_class */
3926 if (current_machine->smp.cpus < machine_class->min_cpus) {
3927 error_report("Invalid SMP CPUs %d. The min CPUs "
3928 "supported by machine '%s' is %d",
3929 current_machine->smp.cpus,
3930 machine_class->name, machine_class->min_cpus);
3931 exit(1);
3932 }
3933 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3934 error_report("Invalid SMP CPUs %d. The max CPUs "
3935 "supported by machine '%s' is %d",
3936 current_machine->smp.max_cpus,
3937 machine_class->name, machine_class->max_cpus);
3938 exit(1);
3939 }
3940
3941 /*
3942 * Get the default machine options from the machine if it is not already
3943 * specified either by the configuration file or by the command line.
3944 */
3945 if (machine_class->default_machine_opts) {
3946 qemu_opts_set_defaults(qemu_find_opts("machine"),
3947 machine_class->default_machine_opts, 0);
3948 }
3949
3950 /* process plugin before CPUs are created, but once -smp has been parsed */
3951 if (qemu_plugin_load_list(&plugin_list)) {
3952 exit(1);
3953 }
3954
3955 qemu_opts_foreach(qemu_find_opts("device"),
3956 default_driver_check, NULL, NULL);
3957 qemu_opts_foreach(qemu_find_opts("global"),
3958 default_driver_check, NULL, NULL);
3959
3960 if (!vga_model && !default_vga) {
3961 vga_interface_type = VGA_DEVICE;
3962 }
3963 if (!has_defaults || machine_class->no_serial) {
3964 default_serial = 0;
3965 }
3966 if (!has_defaults || machine_class->no_parallel) {
3967 default_parallel = 0;
3968 }
3969 if (!has_defaults || machine_class->no_floppy) {
3970 default_floppy = 0;
3971 }
3972 if (!has_defaults || machine_class->no_cdrom) {
3973 default_cdrom = 0;
3974 }
3975 if (!has_defaults || machine_class->no_sdcard) {
3976 default_sdcard = 0;
3977 }
3978 if (!has_defaults) {
3979 default_monitor = 0;
3980 default_net = 0;
3981 default_vga = 0;
3982 }
3983
3984 if (is_daemonized()) {
3985 if (!preconfig_exit_requested) {
3986 error_report("'preconfig' and 'daemonize' options are "
3987 "mutually exclusive");
3988 exit(EXIT_FAILURE);
3989 }
3990
3991 /* According to documentation and historically, -nographic redirects
3992 * serial port, parallel port and monitor to stdio, which does not work
3993 * with -daemonize. We can redirect these to null instead, but since
3994 * -nographic is legacy, let's just error out.
3995 * We disallow -nographic only if all other ports are not redirected
3996 * explicitly, to not break existing legacy setups which uses
3997 * -nographic _and_ redirects all ports explicitly - this is valid
3998 * usage, -nographic is just a no-op in this case.
3999 */
4000 if (nographic
4001 && (default_parallel || default_serial || default_monitor)) {
4002 error_report("-nographic cannot be used with -daemonize");
4003 exit(1);
4004 }
4005 #ifdef CONFIG_CURSES
4006 if (dpy.type == DISPLAY_TYPE_CURSES) {
4007 error_report("curses display cannot be used with -daemonize");
4008 exit(1);
4009 }
4010 #endif
4011 }
4012
4013 if (nographic) {
4014 if (default_parallel)
4015 add_device_config(DEV_PARALLEL, "null");
4016 if (default_serial && default_monitor) {
4017 add_device_config(DEV_SERIAL, "mon:stdio");
4018 } else {
4019 if (default_serial)
4020 add_device_config(DEV_SERIAL, "stdio");
4021 if (default_monitor)
4022 monitor_parse("stdio", "readline", false);
4023 }
4024 } else {
4025 if (default_serial)
4026 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4027 if (default_parallel)
4028 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4029 if (default_monitor)
4030 monitor_parse("vc:80Cx24C", "readline", false);
4031 }
4032
4033 #if defined(CONFIG_VNC)
4034 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4035 display_remote++;
4036 }
4037 #endif
4038 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4039 if (!qemu_display_find_default(&dpy)) {
4040 dpy.type = DISPLAY_TYPE_NONE;
4041 #if defined(CONFIG_VNC)
4042 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4043 #endif
4044 }
4045 }
4046 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4047 dpy.type = DISPLAY_TYPE_NONE;
4048 }
4049
4050 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4051 error_report("-alt-grab and -ctrl-grab are only valid "
4052 "for SDL, ignoring option");
4053 }
4054 if (dpy.has_window_close &&
4055 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4056 error_report("-no-quit is only valid for GTK and SDL, "
4057 "ignoring option");
4058 }
4059
4060 qemu_display_early_init(&dpy);
4061 qemu_console_early_init();
4062
4063 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4064 #if defined(CONFIG_OPENGL)
4065 error_report("OpenGL is not supported by the display");
4066 #else
4067 error_report("OpenGL support is disabled");
4068 #endif
4069 exit(1);
4070 }
4071
4072 page_size_init();
4073 socket_init();
4074
4075 qemu_opts_foreach(qemu_find_opts("object"),
4076 user_creatable_add_opts_foreach,
4077 object_create_initial, &error_fatal);
4078
4079 qemu_opts_foreach(qemu_find_opts("chardev"),
4080 chardev_init_func, NULL, &error_fatal);
4081 /* now chardevs have been created we may have semihosting to connect */
4082 qemu_semihosting_connect_chardevs();
4083
4084 #ifdef CONFIG_VIRTFS
4085 qemu_opts_foreach(qemu_find_opts("fsdev"),
4086 fsdev_init_func, NULL, &error_fatal);
4087 #endif
4088
4089 if (qemu_opts_foreach(qemu_find_opts("device"),
4090 device_help_func, NULL, NULL)) {
4091 exit(0);
4092 }
4093
4094 /*
4095 * Note: we need to create block backends before
4096 * machine_set_property(), so machine properties can refer to
4097 * them.
4098 */
4099 configure_blockdev(&bdo_queue, machine_class, snapshot);
4100
4101 machine_opts = qemu_get_machine_opts();
4102 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4103 &error_fatal);
4104 current_machine->ram_size = ram_size;
4105 current_machine->maxram_size = maxram_size;
4106 current_machine->ram_slots = ram_slots;
4107
4108 /*
4109 * Note: uses machine properties such as kernel-irqchip, must run
4110 * after machine_set_property().
4111 */
4112 configure_accelerators(argv[0]);
4113
4114 /*
4115 * Beware, QOM objects created before this point miss global and
4116 * compat properties.
4117 *
4118 * Global properties get set up by qdev_prop_register_global(),
4119 * called from user_register_global_props(), and certain option
4120 * desugaring. Also in CPU feature desugaring (buried in
4121 * parse_cpu_option()), which happens below this point, but may
4122 * only target the CPU type, which can only be created after
4123 * parse_cpu_option() returned the type.
4124 *
4125 * Machine compat properties: object_set_machine_compat_props().
4126 * Accelerator compat props: object_set_accelerator_compat_props(),
4127 * called from configure_accelerator().
4128 */
4129
4130 if (!qtest_enabled() && machine_class->deprecation_reason) {
4131 error_report("Machine type '%s' is deprecated: %s",
4132 machine_class->name, machine_class->deprecation_reason);
4133 }
4134
4135 /*
4136 * Note: creates a QOM object, must run only after global and
4137 * compat properties have been set up.
4138 */
4139 migration_object_init();
4140
4141 if (qtest_chrdev) {
4142 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4143 }
4144
4145 machine_opts = qemu_get_machine_opts();
4146 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4147 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4148 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4149 bios_name = qemu_opt_get(machine_opts, "firmware");
4150
4151 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4152 if (opts) {
4153 boot_order = qemu_opt_get(opts, "order");
4154 if (boot_order) {
4155 validate_bootdevices(boot_order, &error_fatal);
4156 }
4157
4158 boot_once = qemu_opt_get(opts, "once");
4159 if (boot_once) {
4160 validate_bootdevices(boot_once, &error_fatal);
4161 }
4162
4163 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4164 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4165 }
4166
4167 if (!boot_order) {
4168 boot_order = machine_class->default_boot_order;
4169 }
4170
4171 if (!kernel_cmdline) {
4172 kernel_cmdline = "";
4173 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4174 }
4175
4176 linux_boot = (kernel_filename != NULL);
4177
4178 if (!linux_boot && *kernel_cmdline != '\0') {
4179 error_report("-append only allowed with -kernel option");
4180 exit(1);
4181 }
4182
4183 if (!linux_boot && initrd_filename != NULL) {
4184 error_report("-initrd only allowed with -kernel option");
4185 exit(1);
4186 }
4187
4188 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4189 /* fall back to the -kernel/-append */
4190 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4191 }
4192
4193 /* spice needs the timers to be initialized by this point */
4194 qemu_spice_init();
4195
4196 cpu_ticks_init();
4197
4198 if (default_net) {
4199 QemuOptsList *net = qemu_find_opts("net");
4200 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4201 #ifdef CONFIG_SLIRP
4202 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4203 #endif
4204 }
4205
4206 if (net_init_clients(&err) < 0) {
4207 error_report_err(err);
4208 exit(1);
4209 }
4210
4211 qemu_opts_foreach(qemu_find_opts("object"),
4212 user_creatable_add_opts_foreach,
4213 object_create_delayed, &error_fatal);
4214
4215 tpm_init();
4216
4217 if (!xen_enabled()) {
4218 /* On 32-bit hosts, QEMU is limited by virtual address space */
4219 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4220 error_report("at most 2047 MB RAM can be simulated");
4221 exit(1);
4222 }
4223 }
4224
4225 blk_mig_init();
4226 ram_mig_init();
4227 dirty_bitmap_mig_init();
4228
4229 qemu_opts_foreach(qemu_find_opts("mon"),
4230 mon_init_func, NULL, &error_fatal);
4231
4232 /* connect semihosting console input if requested */
4233 qemu_semihosting_console_init();
4234
4235 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4236 exit(1);
4237 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4238 exit(1);
4239 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4240 exit(1);
4241
4242 /* If no default VGA is requested, the default is "none". */
4243 if (default_vga) {
4244 vga_model = get_default_vga_model(machine_class);
4245 }
4246 if (vga_model) {
4247 select_vgahw(machine_class, vga_model);
4248 }
4249
4250 if (watchdog) {
4251 i = select_watchdog(watchdog);
4252 if (i > 0)
4253 exit (i == 1 ? 1 : 0);
4254 }
4255
4256 /* This checkpoint is required by replay to separate prior clock
4257 reading from the other reads, because timer polling functions query
4258 clock values from the log. */
4259 replay_checkpoint(CHECKPOINT_INIT);
4260 qdev_machine_init();
4261
4262 current_machine->boot_order = boot_order;
4263
4264 /* parse features once if machine provides default cpu_type */
4265 current_machine->cpu_type = machine_class->default_cpu_type;
4266 if (cpu_option) {
4267 current_machine->cpu_type = parse_cpu_option(cpu_option);
4268 }
4269 parse_numa_opts(current_machine);
4270
4271 /* do monitor/qmp handling at preconfig state if requested */
4272 main_loop();
4273
4274 audio_init_audiodevs();
4275
4276 /* from here on runstate is RUN_STATE_PRELAUNCH */
4277 machine_run_board_init(current_machine);
4278
4279 realtime_init();
4280
4281 soundhw_init();
4282
4283 if (hax_enabled()) {
4284 hax_sync_vcpus();
4285 }
4286
4287 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4288 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4289
4290 /* init USB devices */
4291 if (machine_usb(current_machine)) {
4292 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4293 exit(1);
4294 }
4295
4296 /* init generic devices */
4297 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4298 qemu_opts_foreach(qemu_find_opts("device"),
4299 device_init_func, NULL, &error_fatal);
4300
4301 cpu_synchronize_all_post_init();
4302
4303 rom_reset_order_override();
4304
4305 /* Did we create any drives that we failed to create a device for? */
4306 drive_check_orphaned();
4307
4308 /* Don't warn about the default network setup that you get if
4309 * no command line -net or -netdev options are specified. There
4310 * are two cases that we would otherwise complain about:
4311 * (1) board doesn't support a NIC but the implicit "-net nic"
4312 * requested one
4313 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4314 * sets up a nic that isn't connected to anything.
4315 */
4316 if (!default_net && (!qtest_enabled() || has_defaults)) {
4317 net_check_clients();
4318 }
4319
4320 if (boot_once) {
4321 qemu_boot_set(boot_once, &error_fatal);
4322 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4323 }
4324
4325 /* init local displays */
4326 ds = init_displaystate();
4327 qemu_display_init(ds, &dpy);
4328
4329 /* must be after terminal init, SDL library changes signal handlers */
4330 os_setup_signal_handling();
4331
4332 /* init remote displays */
4333 #ifdef CONFIG_VNC
4334 qemu_opts_foreach(qemu_find_opts("vnc"),
4335 vnc_init_func, NULL, &error_fatal);
4336 #endif
4337
4338 if (using_spice) {
4339 qemu_spice_display_init();
4340 }
4341
4342 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4343 exit(1);
4344 }
4345
4346 qdev_machine_creation_done();
4347
4348 /* TODO: once all bus devices are qdevified, this should be done
4349 * when bus is created by qdev.c */
4350 /*
4351 * TODO: If we had a main 'reset container' that the whole system
4352 * lived in, we could reset that using the multi-phase reset
4353 * APIs. For the moment, we just reset the sysbus, which will cause
4354 * all devices hanging off it (and all their child buses, recursively)
4355 * to be reset. Note that this will *not* reset any Device objects
4356 * which are not attached to some part of the qbus tree!
4357 */
4358 qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
4359 qemu_run_machine_init_done_notifiers();
4360
4361 if (rom_check_and_register_reset() != 0) {
4362 error_report("rom check and register reset failed");
4363 exit(1);
4364 }
4365
4366 replay_start();
4367
4368 /* This checkpoint is required by replay to separate prior clock
4369 reading from the other reads, because timer polling functions query
4370 clock values from the log. */
4371 replay_checkpoint(CHECKPOINT_RESET);
4372 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4373 register_global_state();
4374 if (loadvm) {
4375 Error *local_err = NULL;
4376 if (load_snapshot(loadvm, &local_err) < 0) {
4377 error_report_err(local_err);
4378 autostart = 0;
4379 exit(1);
4380 }
4381 }
4382 if (replay_mode != REPLAY_MODE_NONE) {
4383 replay_vmstate_init();
4384 }
4385
4386 qdev_prop_check_globals();
4387 if (vmstate_dump_file) {
4388 /* dump and exit */
4389 dump_vmstate_json_to_file(vmstate_dump_file);
4390 return 0;
4391 }
4392
4393 if (incoming) {
4394 Error *local_err = NULL;
4395 qemu_start_incoming_migration(incoming, &local_err);
4396 if (local_err) {
4397 error_reportf_err(local_err, "-incoming %s: ", incoming);
4398 exit(1);
4399 }
4400 } else if (autostart) {
4401 vm_start();
4402 }
4403
4404 accel_setup_post(current_machine);
4405 os_setup_post();
4406
4407 main_loop();
4408
4409 gdbserver_cleanup();
4410
4411 /*
4412 * cleaning up the migration object cancels any existing migration
4413 * try to do this early so that it also stops using devices.
4414 */
4415 migration_shutdown();
4416
4417 /*
4418 * We must cancel all block jobs while the block layer is drained,
4419 * or cancelling will be affected by throttling and thus may block
4420 * for an extended period of time.
4421 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4422 * it in the drained section.
4423 * We do not need to end this section, because we do not want any
4424 * requests happening from here on anyway.
4425 */
4426 bdrv_drain_all_begin();
4427
4428 /* No more vcpu or device emulation activity beyond this point */
4429 vm_shutdown();
4430 replay_finish();
4431
4432 job_cancel_sync_all();
4433 bdrv_close_all();
4434
4435 res_free();
4436
4437 /* vhost-user must be cleaned up before chardevs. */
4438 tpm_cleanup();
4439 net_cleanup();
4440 audio_cleanup();
4441 monitor_cleanup();
4442 qemu_chr_cleanup();
4443 user_creatable_cleanup();
4444 /* TODO: unref root container, check all devices are ok */
4445
4446 return 0;
4447 }
AR7 emulation for QEMU