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iotests: s/qocw2/qcow2/
[qemu/ar7.git] / vl.c
blob86474a55c9ef1f8e1dbfeeadfbb18a1348d696a1
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
38
39 #ifdef CONFIG_SDL
40 #if defined(__APPLE__) || defined(main)
41 #include <SDL.h>
42 int qemu_main(int argc, char **argv, char **envp);
43 int main(int argc, char **argv)
44 {
45 return qemu_main(argc, argv, NULL);
46 }
47 #undef main
48 #define main qemu_main
49 #endif
50 #endif /* CONFIG_SDL */
51
52 #ifdef CONFIG_COCOA
53 #undef main
54 #define main qemu_main
55 #endif /* CONFIG_COCOA */
56
57
58 #include "qemu/error-report.h"
59 #include "qemu/sockets.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "sysemu/watchdog.h"
66 #include "hw/firmware/smbios.h"
67 #include "hw/acpi/acpi.h"
68 #include "hw/xen/xen.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "net/net.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
75 #include "ui/input.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
82 #include "qemu/log.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
102 #ifdef CONFIG_VIRTFS
103 #include "fsdev/qemu-fsdev.h"
104 #endif
105 #include "sysemu/qtest.h"
106
107 #include "disas/disas.h"
108
109 #include "trace-root.h"
110 #include "trace/control.h"
111 #include "qemu/plugin.h"
112 #include "qemu/queue.h"
113 #include "sysemu/arch_init.h"
114
115 #include "ui/qemu-spice.h"
116 #include "qapi/string-input-visitor.h"
117 #include "qapi/opts-visitor.h"
118 #include "qapi/clone-visitor.h"
119 #include "qom/object_interfaces.h"
120 #include "hw/semihosting/semihost.h"
121 #include "crypto/init.h"
122 #include "sysemu/replay.h"
123 #include "qapi/qapi-events-run-state.h"
124 #include "qapi/qapi-visit-block-core.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
132
133 #define MAX_VIRTIO_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int display_opengl;
140 const char* keyboard_layout = NULL;
141 ram_addr_t ram_size;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 bool enable_cpu_pm = false;
146 int nb_nics;
147 NICInfo nd_table[MAX_NICS];
148 int autostart;
149 static enum {
150 RTC_BASE_UTC,
151 RTC_BASE_LOCALTIME,
152 RTC_BASE_DATETIME,
153 } rtc_base_type = RTC_BASE_UTC;
154 static time_t rtc_ref_start_datetime;
155 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
156 static int rtc_host_datetime_offset = -1; /* valid & used only with
157 RTC_BASE_DATETIME */
158 QEMUClockType rtc_clock;
159 int vga_interface_type = VGA_NONE;
160 static DisplayOptions dpy;
161 static int num_serial_hds;
162 static Chardev **serial_hds;
163 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
164 int win2k_install_hack = 0;
165 int singlestep = 0;
166 int acpi_enabled = 1;
167 int no_hpet = 0;
168 int fd_bootchk = 1;
169 static int no_reboot;
170 int no_shutdown = 0;
171 int cursor_hide = 1;
172 int graphic_rotate = 0;
173 const char *watchdog;
174 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
175 int nb_option_roms;
176 int old_param = 0;
177 const char *qemu_name;
178 int alt_grab = 0;
179 int ctrl_grab = 0;
180 unsigned int nb_prom_envs = 0;
181 const char *prom_envs[MAX_PROM_ENVS];
182 int boot_menu;
183 bool boot_strict;
184 uint8_t *boot_splash_filedata;
185 int only_migratable; /* turn it off unless user states otherwise */
186 bool wakeup_suspend_enabled;
187
188 int icount_align_option;
189
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
192 */
193 QemuUUID qemu_uuid;
194 bool qemu_uuid_set;
195
196 static NotifierList exit_notifiers =
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
198
199 static NotifierList machine_init_done_notifiers =
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
201
202 bool xen_allowed;
203 uint32_t xen_domid;
204 enum xen_mode xen_mode = XEN_EMULATE;
205 bool xen_domid_restrict;
206
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_monitor = 1;
211 static int default_floppy = 1;
212 static int default_cdrom = 1;
213 static int default_sdcard = 1;
214 static int default_vga = 1;
215 static int default_net = 1;
216
217 static struct {
218 const char *driver;
219 int *flag;
220 } default_list[] = {
221 { .driver = "isa-serial", .flag = &default_serial },
222 { .driver = "isa-parallel", .flag = &default_parallel },
223 { .driver = "isa-fdc", .flag = &default_floppy },
224 { .driver = "floppy", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .flag = &default_cdrom },
229 { .driver = "scsi-hd", .flag = &default_cdrom },
230 { .driver = "VGA", .flag = &default_vga },
231 { .driver = "isa-vga", .flag = &default_vga },
232 { .driver = "cirrus-vga", .flag = &default_vga },
233 { .driver = "isa-cirrus-vga", .flag = &default_vga },
234 { .driver = "vmware-svga", .flag = &default_vga },
235 { .driver = "qxl-vga", .flag = &default_vga },
236 { .driver = "virtio-vga", .flag = &default_vga },
237 { .driver = "ati-vga", .flag = &default_vga },
238 { .driver = "vhost-user-vga", .flag = &default_vga },
239 };
240
241 static QemuOptsList qemu_rtc_opts = {
242 .name = "rtc",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
244 .merge_lists = true,
245 .desc = {
246 {
247 .name = "base",
248 .type = QEMU_OPT_STRING,
249 },{
250 .name = "clock",
251 .type = QEMU_OPT_STRING,
252 },{
253 .name = "driftfix",
254 .type = QEMU_OPT_STRING,
255 },
256 { /* end of list */ }
257 },
258 };
259
260 static QemuOptsList qemu_option_rom_opts = {
261 .name = "option-rom",
262 .implied_opt_name = "romfile",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
264 .desc = {
265 {
266 .name = "bootindex",
267 .type = QEMU_OPT_NUMBER,
268 }, {
269 .name = "romfile",
270 .type = QEMU_OPT_STRING,
271 },
272 { /* end of list */ }
273 },
274 };
275
276 static QemuOptsList qemu_machine_opts = {
277 .name = "machine",
278 .implied_opt_name = "type",
279 .merge_lists = true,
280 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
281 .desc = {
282 /*
283 * no elements => accept any
284 * sanity checking will happen later
285 * when setting machine properties
286 */
287 { }
288 },
289 };
290
291 static QemuOptsList qemu_accel_opts = {
292 .name = "accel",
293 .implied_opt_name = "accel",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
295 .desc = {
296 /*
297 * no elements => accept any
298 * sanity checking will happen later
299 * when setting accelerator properties
300 */
301 { }
302 },
303 };
304
305 static QemuOptsList qemu_boot_opts = {
306 .name = "boot-opts",
307 .implied_opt_name = "order",
308 .merge_lists = true,
309 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
310 .desc = {
311 {
312 .name = "order",
313 .type = QEMU_OPT_STRING,
314 }, {
315 .name = "once",
316 .type = QEMU_OPT_STRING,
317 }, {
318 .name = "menu",
319 .type = QEMU_OPT_BOOL,
320 }, {
321 .name = "splash",
322 .type = QEMU_OPT_STRING,
323 }, {
324 .name = "splash-time",
325 .type = QEMU_OPT_NUMBER,
326 }, {
327 .name = "reboot-timeout",
328 .type = QEMU_OPT_NUMBER,
329 }, {
330 .name = "strict",
331 .type = QEMU_OPT_BOOL,
332 },
333 { /*End of list */ }
334 },
335 };
336
337 static QemuOptsList qemu_add_fd_opts = {
338 .name = "add-fd",
339 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
340 .desc = {
341 {
342 .name = "fd",
343 .type = QEMU_OPT_NUMBER,
344 .help = "file descriptor of which a duplicate is added to fd set",
345 },{
346 .name = "set",
347 .type = QEMU_OPT_NUMBER,
348 .help = "ID of the fd set to add fd to",
349 },{
350 .name = "opaque",
351 .type = QEMU_OPT_STRING,
352 .help = "free-form string used to describe fd",
353 },
354 { /* end of list */ }
355 },
356 };
357
358 static QemuOptsList qemu_object_opts = {
359 .name = "object",
360 .implied_opt_name = "qom-type",
361 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
362 .desc = {
363 { }
364 },
365 };
366
367 static QemuOptsList qemu_tpmdev_opts = {
368 .name = "tpmdev",
369 .implied_opt_name = "type",
370 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
371 .desc = {
372 /* options are defined in the TPM backends */
373 { /* end of list */ }
374 },
375 };
376
377 static QemuOptsList qemu_realtime_opts = {
378 .name = "realtime",
379 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
380 .desc = {
381 {
382 .name = "mlock",
383 .type = QEMU_OPT_BOOL,
384 },
385 { /* end of list */ }
386 },
387 };
388
389 static QemuOptsList qemu_overcommit_opts = {
390 .name = "overcommit",
391 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
392 .desc = {
393 {
394 .name = "mem-lock",
395 .type = QEMU_OPT_BOOL,
396 },
397 {
398 .name = "cpu-pm",
399 .type = QEMU_OPT_BOOL,
400 },
401 { /* end of list */ }
402 },
403 };
404
405 static QemuOptsList qemu_msg_opts = {
406 .name = "msg",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
408 .desc = {
409 {
410 .name = "timestamp",
411 .type = QEMU_OPT_BOOL,
412 },
413 { /* end of list */ }
414 },
415 };
416
417 static QemuOptsList qemu_name_opts = {
418 .name = "name",
419 .implied_opt_name = "guest",
420 .merge_lists = true,
421 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
422 .desc = {
423 {
424 .name = "guest",
425 .type = QEMU_OPT_STRING,
426 .help = "Sets the name of the guest.\n"
427 "This name will be displayed in the SDL window caption.\n"
428 "The name will also be used for the VNC server",
429 }, {
430 .name = "process",
431 .type = QEMU_OPT_STRING,
432 .help = "Sets the name of the QEMU process, as shown in top etc",
433 }, {
434 .name = "debug-threads",
435 .type = QEMU_OPT_BOOL,
436 .help = "When enabled, name the individual threads; defaults off.\n"
437 "NOTE: The thread names are for debugging and not a\n"
438 "stable API.",
439 },
440 { /* End of list */ }
441 },
442 };
443
444 static QemuOptsList qemu_mem_opts = {
445 .name = "memory",
446 .implied_opt_name = "size",
447 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
448 .merge_lists = true,
449 .desc = {
450 {
451 .name = "size",
452 .type = QEMU_OPT_SIZE,
453 },
454 {
455 .name = "slots",
456 .type = QEMU_OPT_NUMBER,
457 },
458 {
459 .name = "maxmem",
460 .type = QEMU_OPT_SIZE,
461 },
462 { /* end of list */ }
463 },
464 };
465
466 static QemuOptsList qemu_icount_opts = {
467 .name = "icount",
468 .implied_opt_name = "shift",
469 .merge_lists = true,
470 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
471 .desc = {
472 {
473 .name = "shift",
474 .type = QEMU_OPT_STRING,
475 }, {
476 .name = "align",
477 .type = QEMU_OPT_BOOL,
478 }, {
479 .name = "sleep",
480 .type = QEMU_OPT_BOOL,
481 }, {
482 .name = "rr",
483 .type = QEMU_OPT_STRING,
484 }, {
485 .name = "rrfile",
486 .type = QEMU_OPT_STRING,
487 }, {
488 .name = "rrsnapshot",
489 .type = QEMU_OPT_STRING,
490 },
491 { /* end of list */ }
492 },
493 };
494
495 static QemuOptsList qemu_fw_cfg_opts = {
496 .name = "fw_cfg",
497 .implied_opt_name = "name",
498 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
499 .desc = {
500 {
501 .name = "name",
502 .type = QEMU_OPT_STRING,
503 .help = "Sets the fw_cfg name of the blob to be inserted",
504 }, {
505 .name = "file",
506 .type = QEMU_OPT_STRING,
507 .help = "Sets the name of the file from which "
508 "the fw_cfg blob will be loaded",
509 }, {
510 .name = "string",
511 .type = QEMU_OPT_STRING,
512 .help = "Sets content of the blob to be inserted from a string",
513 },
514 { /* end of list */ }
515 },
516 };
517
518 /**
519 * Get machine options
520 *
521 * Returns: machine options (never null).
522 */
523 QemuOpts *qemu_get_machine_opts(void)
524 {
525 return qemu_find_opts_singleton("machine");
526 }
527
528 const char *qemu_get_vm_name(void)
529 {
530 return qemu_name;
531 }
532
533 static void res_free(void)
534 {
535 g_free(boot_splash_filedata);
536 boot_splash_filedata = NULL;
537 }
538
539 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
540 {
541 const char *driver = qemu_opt_get(opts, "driver");
542 int i;
543
544 if (!driver)
545 return 0;
546 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
547 if (strcmp(default_list[i].driver, driver) != 0)
548 continue;
549 *(default_list[i].flag) = 0;
550 }
551 return 0;
552 }
553
554 /***********************************************************/
555 /* QEMU state */
556
557 static RunState current_run_state = RUN_STATE_PRECONFIG;
558
559 /* We use RUN_STATE__MAX but any invalid value will do */
560 static RunState vmstop_requested = RUN_STATE__MAX;
561 static QemuMutex vmstop_lock;
562
563 typedef struct {
564 RunState from;
565 RunState to;
566 } RunStateTransition;
567
568 static const RunStateTransition runstate_transitions_def[] = {
569 /* from -> to */
570 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
571 /* Early switch to inmigrate state to allow -incoming CLI option work
572 * as it used to. TODO: delay actual switching to inmigrate state to
573 * the point after machine is built and remove this hack.
574 */
575 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
576
577 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
578 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
579 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
580
581 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
582 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
583 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
584 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
585 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
586 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
587 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
588 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
589 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
590 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
591 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
592 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
593
594 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
595 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
596 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
597
598 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
599 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
600 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
601
602 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
603 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
604 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
605 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
606 { RUN_STATE_PAUSED, RUN_STATE_COLO},
607
608 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
609 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
610 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
611
612 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
613 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
614 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
615
616 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
617 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
618 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
619 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
620 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
621
622 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
623 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
624
625 { RUN_STATE_COLO, RUN_STATE_RUNNING },
626
627 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
628 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
629 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
630 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
631 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
632 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
633 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
634 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
635 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
636 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
637 { RUN_STATE_RUNNING, RUN_STATE_COLO},
638
639 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
640
641 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
642 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
644
645 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
646 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
647 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
648 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
649 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
650 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
651
652 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
653 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
654 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
655 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
656
657 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
658 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
660
661 { RUN_STATE__MAX, RUN_STATE__MAX },
662 };
663
664 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
665
666 bool runstate_check(RunState state)
667 {
668 return current_run_state == state;
669 }
670
671 bool runstate_store(char *str, size_t size)
672 {
673 const char *state = RunState_str(current_run_state);
674 size_t len = strlen(state) + 1;
675
676 if (len > size) {
677 return false;
678 }
679 memcpy(str, state, len);
680 return true;
681 }
682
683 static void runstate_init(void)
684 {
685 const RunStateTransition *p;
686
687 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
688 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
689 runstate_valid_transitions[p->from][p->to] = true;
690 }
691
692 qemu_mutex_init(&vmstop_lock);
693 }
694
695 /* This function will abort() on invalid state transitions */
696 void runstate_set(RunState new_state)
697 {
698 assert(new_state < RUN_STATE__MAX);
699
700 trace_runstate_set(current_run_state, RunState_str(current_run_state),
701 new_state, RunState_str(new_state));
702
703 if (current_run_state == new_state) {
704 return;
705 }
706
707 if (!runstate_valid_transitions[current_run_state][new_state]) {
708 error_report("invalid runstate transition: '%s' -> '%s'",
709 RunState_str(current_run_state),
710 RunState_str(new_state));
711 abort();
712 }
713
714 current_run_state = new_state;
715 }
716
717 int runstate_is_running(void)
718 {
719 return runstate_check(RUN_STATE_RUNNING);
720 }
721
722 bool runstate_needs_reset(void)
723 {
724 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
725 runstate_check(RUN_STATE_SHUTDOWN);
726 }
727
728 StatusInfo *qmp_query_status(Error **errp)
729 {
730 StatusInfo *info = g_malloc0(sizeof(*info));
731
732 info->running = runstate_is_running();
733 info->singlestep = singlestep;
734 info->status = current_run_state;
735
736 return info;
737 }
738
739 bool qemu_vmstop_requested(RunState *r)
740 {
741 qemu_mutex_lock(&vmstop_lock);
742 *r = vmstop_requested;
743 vmstop_requested = RUN_STATE__MAX;
744 qemu_mutex_unlock(&vmstop_lock);
745 return *r < RUN_STATE__MAX;
746 }
747
748 void qemu_system_vmstop_request_prepare(void)
749 {
750 qemu_mutex_lock(&vmstop_lock);
751 }
752
753 void qemu_system_vmstop_request(RunState state)
754 {
755 vmstop_requested = state;
756 qemu_mutex_unlock(&vmstop_lock);
757 qemu_notify_event();
758 }
759
760 /***********************************************************/
761 /* RTC reference time/date access */
762 static time_t qemu_ref_timedate(QEMUClockType clock)
763 {
764 time_t value = qemu_clock_get_ms(clock) / 1000;
765 switch (clock) {
766 case QEMU_CLOCK_REALTIME:
767 value -= rtc_realtime_clock_offset;
768 /* fall through */
769 case QEMU_CLOCK_VIRTUAL:
770 value += rtc_ref_start_datetime;
771 break;
772 case QEMU_CLOCK_HOST:
773 if (rtc_base_type == RTC_BASE_DATETIME) {
774 value -= rtc_host_datetime_offset;
775 }
776 break;
777 default:
778 assert(0);
779 }
780 return value;
781 }
782
783 void qemu_get_timedate(struct tm *tm, int offset)
784 {
785 time_t ti = qemu_ref_timedate(rtc_clock);
786
787 ti += offset;
788
789 switch (rtc_base_type) {
790 case RTC_BASE_DATETIME:
791 case RTC_BASE_UTC:
792 gmtime_r(&ti, tm);
793 break;
794 case RTC_BASE_LOCALTIME:
795 localtime_r(&ti, tm);
796 break;
797 }
798 }
799
800 int qemu_timedate_diff(struct tm *tm)
801 {
802 time_t seconds;
803
804 switch (rtc_base_type) {
805 case RTC_BASE_DATETIME:
806 case RTC_BASE_UTC:
807 seconds = mktimegm(tm);
808 break;
809 case RTC_BASE_LOCALTIME:
810 {
811 struct tm tmp = *tm;
812 tmp.tm_isdst = -1; /* use timezone to figure it out */
813 seconds = mktime(&tmp);
814 break;
815 }
816 default:
817 abort();
818 }
819
820 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
821 }
822
823 static void configure_rtc_base_datetime(const char *startdate)
824 {
825 time_t rtc_start_datetime;
826 struct tm tm;
827
828 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
829 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
830 /* OK */
831 } else if (sscanf(startdate, "%d-%d-%d",
832 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
833 tm.tm_hour = 0;
834 tm.tm_min = 0;
835 tm.tm_sec = 0;
836 } else {
837 goto date_fail;
838 }
839 tm.tm_year -= 1900;
840 tm.tm_mon--;
841 rtc_start_datetime = mktimegm(&tm);
842 if (rtc_start_datetime == -1) {
843 date_fail:
844 error_report("invalid datetime format");
845 error_printf("valid formats: "
846 "'2006-06-17T16:01:21' or '2006-06-17'\n");
847 exit(1);
848 }
849 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
850 rtc_ref_start_datetime = rtc_start_datetime;
851 }
852
853 static void configure_rtc(QemuOpts *opts)
854 {
855 const char *value;
856
857 /* Set defaults */
858 rtc_clock = QEMU_CLOCK_HOST;
859 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
860 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
861
862 value = qemu_opt_get(opts, "base");
863 if (value) {
864 if (!strcmp(value, "utc")) {
865 rtc_base_type = RTC_BASE_UTC;
866 } else if (!strcmp(value, "localtime")) {
867 Error *blocker = NULL;
868 rtc_base_type = RTC_BASE_LOCALTIME;
869 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
870 "-rtc base=localtime");
871 replay_add_blocker(blocker);
872 } else {
873 rtc_base_type = RTC_BASE_DATETIME;
874 configure_rtc_base_datetime(value);
875 }
876 }
877 value = qemu_opt_get(opts, "clock");
878 if (value) {
879 if (!strcmp(value, "host")) {
880 rtc_clock = QEMU_CLOCK_HOST;
881 } else if (!strcmp(value, "rt")) {
882 rtc_clock = QEMU_CLOCK_REALTIME;
883 } else if (!strcmp(value, "vm")) {
884 rtc_clock = QEMU_CLOCK_VIRTUAL;
885 } else {
886 error_report("invalid option value '%s'", value);
887 exit(1);
888 }
889 }
890 value = qemu_opt_get(opts, "driftfix");
891 if (value) {
892 if (!strcmp(value, "slew")) {
893 object_register_sugar_prop("mc146818rtc",
894 "lost_tick_policy",
895 "slew");
896 } else if (!strcmp(value, "none")) {
897 /* discard is default */
898 } else {
899 error_report("invalid option value '%s'", value);
900 exit(1);
901 }
902 }
903 }
904
905 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
906 {
907 const char *proc_name;
908
909 if (qemu_opt_get(opts, "debug-threads")) {
910 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
911 }
912 qemu_name = qemu_opt_get(opts, "guest");
913
914 proc_name = qemu_opt_get(opts, "process");
915 if (proc_name) {
916 os_set_proc_name(proc_name);
917 }
918
919 return 0;
920 }
921
922 bool defaults_enabled(void)
923 {
924 return has_defaults;
925 }
926
927 #ifndef _WIN32
928 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
929 {
930 int fd, dupfd, flags;
931 int64_t fdset_id;
932 const char *fd_opaque = NULL;
933 AddfdInfo *fdinfo;
934
935 fd = qemu_opt_get_number(opts, "fd", -1);
936 fdset_id = qemu_opt_get_number(opts, "set", -1);
937 fd_opaque = qemu_opt_get(opts, "opaque");
938
939 if (fd < 0) {
940 error_setg(errp, "fd option is required and must be non-negative");
941 return -1;
942 }
943
944 if (fd <= STDERR_FILENO) {
945 error_setg(errp, "fd cannot be a standard I/O stream");
946 return -1;
947 }
948
949 /*
950 * All fds inherited across exec() necessarily have FD_CLOEXEC
951 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
952 */
953 flags = fcntl(fd, F_GETFD);
954 if (flags == -1 || (flags & FD_CLOEXEC)) {
955 error_setg(errp, "fd is not valid or already in use");
956 return -1;
957 }
958
959 if (fdset_id < 0) {
960 error_setg(errp, "set option is required and must be non-negative");
961 return -1;
962 }
963
964 #ifdef F_DUPFD_CLOEXEC
965 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
966 #else
967 dupfd = dup(fd);
968 if (dupfd != -1) {
969 qemu_set_cloexec(dupfd);
970 }
971 #endif
972 if (dupfd == -1) {
973 error_setg(errp, "error duplicating fd: %s", strerror(errno));
974 return -1;
975 }
976
977 /* add the duplicate fd, and optionally the opaque string, to the fd set */
978 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
979 &error_abort);
980 g_free(fdinfo);
981
982 return 0;
983 }
984
985 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
986 {
987 int fd;
988
989 fd = qemu_opt_get_number(opts, "fd", -1);
990 close(fd);
991
992 return 0;
993 }
994 #endif
995
996 /***********************************************************/
997 /* QEMU Block devices */
998
999 #define HD_OPTS "media=disk"
1000 #define CDROM_OPTS "media=cdrom"
1001 #define FD_OPTS ""
1002 #define PFLASH_OPTS ""
1003 #define MTD_OPTS ""
1004 #define SD_OPTS ""
1005
1006 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1007 {
1008 BlockInterfaceType *block_default_type = opaque;
1009
1010 return drive_new(opts, *block_default_type, errp) == NULL;
1011 }
1012
1013 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1014 {
1015 if (qemu_opt_get(opts, "snapshot") == NULL) {
1016 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1017 }
1018 return 0;
1019 }
1020
1021 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1022 int index, const char *optstr)
1023 {
1024 QemuOpts *opts;
1025 DriveInfo *dinfo;
1026
1027 if (!enable || drive_get_by_index(type, index)) {
1028 return;
1029 }
1030
1031 opts = drive_add(type, index, NULL, optstr);
1032 if (snapshot) {
1033 drive_enable_snapshot(NULL, opts, NULL);
1034 }
1035
1036 dinfo = drive_new(opts, type, &error_abort);
1037 dinfo->is_default = true;
1038
1039 }
1040
1041 typedef struct BlockdevOptionsQueueEntry {
1042 BlockdevOptions *bdo;
1043 Location loc;
1044 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1045 } BlockdevOptionsQueueEntry;
1046
1047 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1048
1049 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1050 MachineClass *machine_class, int snapshot)
1051 {
1052 /*
1053 * If the currently selected machine wishes to override the
1054 * units-per-bus property of its default HBA interface type, do so
1055 * now.
1056 */
1057 if (machine_class->units_per_default_bus) {
1058 override_max_devs(machine_class->block_default_type,
1059 machine_class->units_per_default_bus);
1060 }
1061
1062 /* open the virtual block devices */
1063 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1064 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1065
1066 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1067 loc_push_restore(&bdo->loc);
1068 qmp_blockdev_add(bdo->bdo, &error_fatal);
1069 loc_pop(&bdo->loc);
1070 qapi_free_BlockdevOptions(bdo->bdo);
1071 g_free(bdo);
1072 }
1073 if (snapshot) {
1074 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1075 NULL, NULL);
1076 }
1077 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1078 &machine_class->block_default_type, &error_fatal)) {
1079 /* We printed help */
1080 exit(0);
1081 }
1082
1083 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1084 CDROM_OPTS);
1085 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1086 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1087
1088 }
1089
1090 static QemuOptsList qemu_smp_opts = {
1091 .name = "smp-opts",
1092 .implied_opt_name = "cpus",
1093 .merge_lists = true,
1094 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1095 .desc = {
1096 {
1097 .name = "cpus",
1098 .type = QEMU_OPT_NUMBER,
1099 }, {
1100 .name = "sockets",
1101 .type = QEMU_OPT_NUMBER,
1102 }, {
1103 .name = "dies",
1104 .type = QEMU_OPT_NUMBER,
1105 }, {
1106 .name = "cores",
1107 .type = QEMU_OPT_NUMBER,
1108 }, {
1109 .name = "threads",
1110 .type = QEMU_OPT_NUMBER,
1111 }, {
1112 .name = "maxcpus",
1113 .type = QEMU_OPT_NUMBER,
1114 },
1115 { /*End of list */ }
1116 },
1117 };
1118
1119 static void realtime_init(void)
1120 {
1121 if (enable_mlock) {
1122 if (os_mlock() < 0) {
1123 error_report("locking memory failed");
1124 exit(1);
1125 }
1126 }
1127 }
1128
1129
1130 static void configure_msg(QemuOpts *opts)
1131 {
1132 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1133 }
1134
1135
1136 /***********************************************************/
1137 /* USB devices */
1138
1139 static int usb_device_add(const char *devname)
1140 {
1141 USBDevice *dev = NULL;
1142
1143 if (!machine_usb(current_machine)) {
1144 return -1;
1145 }
1146
1147 dev = usbdevice_create(devname);
1148 if (!dev)
1149 return -1;
1150
1151 return 0;
1152 }
1153
1154 static int usb_parse(const char *cmdline)
1155 {
1156 int r;
1157 r = usb_device_add(cmdline);
1158 if (r < 0) {
1159 error_report("could not add USB device '%s'", cmdline);
1160 }
1161 return r;
1162 }
1163
1164 /***********************************************************/
1165 /* machine registration */
1166
1167 MachineState *current_machine;
1168
1169 static MachineClass *find_machine(const char *name, GSList *machines)
1170 {
1171 GSList *el;
1172
1173 for (el = machines; el; el = el->next) {
1174 MachineClass *mc = el->data;
1175
1176 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1177 return mc;
1178 }
1179 }
1180
1181 return NULL;
1182 }
1183
1184 static MachineClass *find_default_machine(GSList *machines)
1185 {
1186 GSList *el;
1187
1188 for (el = machines; el; el = el->next) {
1189 MachineClass *mc = el->data;
1190
1191 if (mc->is_default) {
1192 return mc;
1193 }
1194 }
1195
1196 return NULL;
1197 }
1198
1199 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1200 {
1201 ObjectProperty *prop;
1202 ObjectPropertyIterator iter;
1203
1204 if (!qemu_opt_has_help_opt(opts)) {
1205 return 0;
1206 }
1207
1208 object_property_iter_init(&iter, OBJECT(machine));
1209 while ((prop = object_property_iter_next(&iter))) {
1210 if (!prop->set) {
1211 continue;
1212 }
1213
1214 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1215 prop->name, prop->type);
1216 if (prop->description) {
1217 printf(" (%s)\n", prop->description);
1218 } else {
1219 printf("\n");
1220 }
1221 }
1222
1223 return 1;
1224 }
1225
1226 struct VMChangeStateEntry {
1227 VMChangeStateHandler *cb;
1228 void *opaque;
1229 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1230 int priority;
1231 };
1232
1233 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1234
1235 /**
1236 * qemu_add_vm_change_state_handler_prio:
1237 * @cb: the callback to invoke
1238 * @opaque: user data passed to the callback
1239 * @priority: low priorities execute first when the vm runs and the reverse is
1240 * true when the vm stops
1241 *
1242 * Register a callback function that is invoked when the vm starts or stops
1243 * running.
1244 *
1245 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1246 */
1247 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1248 VMChangeStateHandler *cb, void *opaque, int priority)
1249 {
1250 VMChangeStateEntry *e;
1251 VMChangeStateEntry *other;
1252
1253 e = g_malloc0(sizeof(*e));
1254 e->cb = cb;
1255 e->opaque = opaque;
1256 e->priority = priority;
1257
1258 /* Keep list sorted in ascending priority order */
1259 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1260 if (priority < other->priority) {
1261 QTAILQ_INSERT_BEFORE(other, e, entries);
1262 return e;
1263 }
1264 }
1265
1266 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1267 return e;
1268 }
1269
1270 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1271 void *opaque)
1272 {
1273 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1274 }
1275
1276 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1277 {
1278 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1279 g_free(e);
1280 }
1281
1282 void vm_state_notify(int running, RunState state)
1283 {
1284 VMChangeStateEntry *e, *next;
1285
1286 trace_vm_state_notify(running, state, RunState_str(state));
1287
1288 if (running) {
1289 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1290 e->cb(e->opaque, running, state);
1291 }
1292 } else {
1293 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1294 e->cb(e->opaque, running, state);
1295 }
1296 }
1297 }
1298
1299 static ShutdownCause reset_requested;
1300 static ShutdownCause shutdown_requested;
1301 static int shutdown_signal;
1302 static pid_t shutdown_pid;
1303 static int powerdown_requested;
1304 static int debug_requested;
1305 static int suspend_requested;
1306 static bool preconfig_exit_requested = true;
1307 static WakeupReason wakeup_reason;
1308 static NotifierList powerdown_notifiers =
1309 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1310 static NotifierList suspend_notifiers =
1311 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1312 static NotifierList wakeup_notifiers =
1313 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1314 static NotifierList shutdown_notifiers =
1315 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1316 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1317
1318 ShutdownCause qemu_shutdown_requested_get(void)
1319 {
1320 return shutdown_requested;
1321 }
1322
1323 ShutdownCause qemu_reset_requested_get(void)
1324 {
1325 return reset_requested;
1326 }
1327
1328 static int qemu_shutdown_requested(void)
1329 {
1330 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1331 }
1332
1333 static void qemu_kill_report(void)
1334 {
1335 if (!qtest_driver() && shutdown_signal) {
1336 if (shutdown_pid == 0) {
1337 /* This happens for eg ^C at the terminal, so it's worth
1338 * avoiding printing an odd message in that case.
1339 */
1340 error_report("terminating on signal %d", shutdown_signal);
1341 } else {
1342 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1343
1344 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1345 shutdown_signal, shutdown_pid,
1346 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1347 g_free(shutdown_cmd);
1348 }
1349 shutdown_signal = 0;
1350 }
1351 }
1352
1353 static ShutdownCause qemu_reset_requested(void)
1354 {
1355 ShutdownCause r = reset_requested;
1356
1357 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1358 reset_requested = SHUTDOWN_CAUSE_NONE;
1359 return r;
1360 }
1361 return SHUTDOWN_CAUSE_NONE;
1362 }
1363
1364 static int qemu_suspend_requested(void)
1365 {
1366 int r = suspend_requested;
1367 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1368 suspend_requested = 0;
1369 return r;
1370 }
1371 return false;
1372 }
1373
1374 static WakeupReason qemu_wakeup_requested(void)
1375 {
1376 return wakeup_reason;
1377 }
1378
1379 static int qemu_powerdown_requested(void)
1380 {
1381 int r = powerdown_requested;
1382 powerdown_requested = 0;
1383 return r;
1384 }
1385
1386 static int qemu_debug_requested(void)
1387 {
1388 int r = debug_requested;
1389 debug_requested = 0;
1390 return r;
1391 }
1392
1393 void qemu_exit_preconfig_request(void)
1394 {
1395 preconfig_exit_requested = true;
1396 }
1397
1398 /*
1399 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1400 */
1401 void qemu_system_reset(ShutdownCause reason)
1402 {
1403 MachineClass *mc;
1404
1405 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1406
1407 cpu_synchronize_all_states();
1408
1409 if (mc && mc->reset) {
1410 mc->reset(current_machine);
1411 } else {
1412 qemu_devices_reset();
1413 }
1414 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1415 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1416 }
1417 cpu_synchronize_all_post_reset();
1418 }
1419
1420 /*
1421 * Wake the VM after suspend.
1422 */
1423 static void qemu_system_wakeup(void)
1424 {
1425 MachineClass *mc;
1426
1427 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1428
1429 if (mc && mc->wakeup) {
1430 mc->wakeup(current_machine);
1431 }
1432 }
1433
1434 void qemu_system_guest_panicked(GuestPanicInformation *info)
1435 {
1436 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1437
1438 if (current_cpu) {
1439 current_cpu->crash_occurred = true;
1440 }
1441 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1442 !!info, info);
1443 vm_stop(RUN_STATE_GUEST_PANICKED);
1444 if (!no_shutdown) {
1445 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1446 !!info, info);
1447 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1448 }
1449
1450 if (info) {
1451 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1452 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1453 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1454 info->u.hyper_v.arg1,
1455 info->u.hyper_v.arg2,
1456 info->u.hyper_v.arg3,
1457 info->u.hyper_v.arg4,
1458 info->u.hyper_v.arg5);
1459 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1460 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1461 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1462 info->u.s390.core,
1463 S390CrashReason_str(info->u.s390.reason),
1464 info->u.s390.psw_mask,
1465 info->u.s390.psw_addr);
1466 }
1467 qapi_free_GuestPanicInformation(info);
1468 }
1469 }
1470
1471 void qemu_system_reset_request(ShutdownCause reason)
1472 {
1473 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1474 shutdown_requested = reason;
1475 } else {
1476 reset_requested = reason;
1477 }
1478 cpu_stop_current();
1479 qemu_notify_event();
1480 }
1481
1482 static void qemu_system_suspend(void)
1483 {
1484 pause_all_vcpus();
1485 notifier_list_notify(&suspend_notifiers, NULL);
1486 runstate_set(RUN_STATE_SUSPENDED);
1487 qapi_event_send_suspend();
1488 }
1489
1490 void qemu_system_suspend_request(void)
1491 {
1492 if (runstate_check(RUN_STATE_SUSPENDED)) {
1493 return;
1494 }
1495 suspend_requested = 1;
1496 cpu_stop_current();
1497 qemu_notify_event();
1498 }
1499
1500 void qemu_register_suspend_notifier(Notifier *notifier)
1501 {
1502 notifier_list_add(&suspend_notifiers, notifier);
1503 }
1504
1505 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1506 {
1507 trace_system_wakeup_request(reason);
1508
1509 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1510 error_setg(errp,
1511 "Unable to wake up: guest is not in suspended state");
1512 return;
1513 }
1514 if (!(wakeup_reason_mask & (1 << reason))) {
1515 return;
1516 }
1517 runstate_set(RUN_STATE_RUNNING);
1518 wakeup_reason = reason;
1519 qemu_notify_event();
1520 }
1521
1522 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1523 {
1524 if (enabled) {
1525 wakeup_reason_mask |= (1 << reason);
1526 } else {
1527 wakeup_reason_mask &= ~(1 << reason);
1528 }
1529 }
1530
1531 void qemu_register_wakeup_notifier(Notifier *notifier)
1532 {
1533 notifier_list_add(&wakeup_notifiers, notifier);
1534 }
1535
1536 void qemu_register_wakeup_support(void)
1537 {
1538 wakeup_suspend_enabled = true;
1539 }
1540
1541 bool qemu_wakeup_suspend_enabled(void)
1542 {
1543 return wakeup_suspend_enabled;
1544 }
1545
1546 void qemu_system_killed(int signal, pid_t pid)
1547 {
1548 shutdown_signal = signal;
1549 shutdown_pid = pid;
1550 no_shutdown = 0;
1551
1552 /* Cannot call qemu_system_shutdown_request directly because
1553 * we are in a signal handler.
1554 */
1555 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1556 qemu_notify_event();
1557 }
1558
1559 void qemu_system_shutdown_request(ShutdownCause reason)
1560 {
1561 trace_qemu_system_shutdown_request(reason);
1562 replay_shutdown_request(reason);
1563 shutdown_requested = reason;
1564 qemu_notify_event();
1565 }
1566
1567 static void qemu_system_powerdown(void)
1568 {
1569 qapi_event_send_powerdown();
1570 notifier_list_notify(&powerdown_notifiers, NULL);
1571 }
1572
1573 static void qemu_system_shutdown(ShutdownCause cause)
1574 {
1575 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1576 notifier_list_notify(&shutdown_notifiers, &cause);
1577 }
1578
1579 void qemu_system_powerdown_request(void)
1580 {
1581 trace_qemu_system_powerdown_request();
1582 powerdown_requested = 1;
1583 qemu_notify_event();
1584 }
1585
1586 void qemu_register_powerdown_notifier(Notifier *notifier)
1587 {
1588 notifier_list_add(&powerdown_notifiers, notifier);
1589 }
1590
1591 void qemu_register_shutdown_notifier(Notifier *notifier)
1592 {
1593 notifier_list_add(&shutdown_notifiers, notifier);
1594 }
1595
1596 void qemu_system_debug_request(void)
1597 {
1598 debug_requested = 1;
1599 qemu_notify_event();
1600 }
1601
1602 static bool main_loop_should_exit(void)
1603 {
1604 RunState r;
1605 ShutdownCause request;
1606
1607 if (runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1608 return false;
1609 }
1610 if (preconfig_exit_requested) {
1611 if (runstate_check(RUN_STATE_PRECONFIG)) {
1612 runstate_set(RUN_STATE_PRELAUNCH);
1613 }
1614 preconfig_exit_requested = false;
1615 return true;
1616 }
1617 if (qemu_debug_requested()) {
1618 vm_stop(RUN_STATE_DEBUG);
1619 }
1620 if (qemu_suspend_requested()) {
1621 qemu_system_suspend();
1622 }
1623 request = qemu_shutdown_requested();
1624 if (request) {
1625 qemu_kill_report();
1626 qemu_system_shutdown(request);
1627 if (no_shutdown) {
1628 vm_stop(RUN_STATE_SHUTDOWN);
1629 } else {
1630 return true;
1631 }
1632 }
1633 request = qemu_reset_requested();
1634 if (request) {
1635 pause_all_vcpus();
1636 qemu_system_reset(request);
1637 resume_all_vcpus();
1638 if (!runstate_check(RUN_STATE_RUNNING) &&
1639 !runstate_check(RUN_STATE_INMIGRATE)) {
1640 runstate_set(RUN_STATE_PRELAUNCH);
1641 }
1642 }
1643 if (qemu_wakeup_requested()) {
1644 pause_all_vcpus();
1645 qemu_system_wakeup();
1646 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1647 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1648 resume_all_vcpus();
1649 qapi_event_send_wakeup();
1650 }
1651 if (qemu_powerdown_requested()) {
1652 qemu_system_powerdown();
1653 }
1654 if (qemu_vmstop_requested(&r)) {
1655 vm_stop(r);
1656 }
1657 return false;
1658 }
1659
1660 static void main_loop(void)
1661 {
1662 #ifdef CONFIG_PROFILER
1663 int64_t ti;
1664 #endif
1665 while (!main_loop_should_exit()) {
1666 #ifdef CONFIG_PROFILER
1667 ti = profile_getclock();
1668 #endif
1669 main_loop_wait(false);
1670 #ifdef CONFIG_PROFILER
1671 dev_time += profile_getclock() - ti;
1672 #endif
1673 }
1674 }
1675
1676 static void version(void)
1677 {
1678 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1679 QEMU_COPYRIGHT "\n");
1680 }
1681
1682 static void help(int exitcode)
1683 {
1684 version();
1685 printf("usage: %s [options] [disk_image]\n\n"
1686 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1687 error_get_progname());
1688
1689 #define QEMU_OPTIONS_GENERATE_HELP
1690 #include "qemu-options-wrapper.h"
1691
1692 printf("\nDuring emulation, the following keys are useful:\n"
1693 "ctrl-alt-f toggle full screen\n"
1694 "ctrl-alt-n switch to virtual console 'n'\n"
1695 "ctrl-alt toggle mouse and keyboard grab\n"
1696 "\n"
1697 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1698 "\n"
1699 QEMU_HELP_BOTTOM "\n");
1700
1701 exit(exitcode);
1702 }
1703
1704 #define HAS_ARG 0x0001
1705
1706 typedef struct QEMUOption {
1707 const char *name;
1708 int flags;
1709 int index;
1710 uint32_t arch_mask;
1711 } QEMUOption;
1712
1713 static const QEMUOption qemu_options[] = {
1714 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1715 #define QEMU_OPTIONS_GENERATE_OPTIONS
1716 #include "qemu-options-wrapper.h"
1717 { NULL },
1718 };
1719
1720 typedef struct VGAInterfaceInfo {
1721 const char *opt_name; /* option name */
1722 const char *name; /* human-readable name */
1723 /* Class names indicating that support is available.
1724 * If no class is specified, the interface is always available */
1725 const char *class_names[2];
1726 } VGAInterfaceInfo;
1727
1728 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1729 [VGA_NONE] = {
1730 .opt_name = "none",
1731 .name = "no graphic card",
1732 },
1733 [VGA_STD] = {
1734 .opt_name = "std",
1735 .name = "standard VGA",
1736 .class_names = { "VGA", "isa-vga" },
1737 },
1738 [VGA_CIRRUS] = {
1739 .opt_name = "cirrus",
1740 .name = "Cirrus VGA",
1741 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1742 },
1743 [VGA_VMWARE] = {
1744 .opt_name = "vmware",
1745 .name = "VMWare SVGA",
1746 .class_names = { "vmware-svga" },
1747 },
1748 [VGA_VIRTIO] = {
1749 .opt_name = "virtio",
1750 .name = "Virtio VGA",
1751 .class_names = { "virtio-vga" },
1752 },
1753 [VGA_QXL] = {
1754 .opt_name = "qxl",
1755 .name = "QXL VGA",
1756 .class_names = { "qxl-vga" },
1757 },
1758 [VGA_TCX] = {
1759 .opt_name = "tcx",
1760 .name = "TCX framebuffer",
1761 .class_names = { "SUNW,tcx" },
1762 },
1763 [VGA_CG3] = {
1764 .opt_name = "cg3",
1765 .name = "CG3 framebuffer",
1766 .class_names = { "cgthree" },
1767 },
1768 [VGA_XENFB] = {
1769 .opt_name = "xenfb",
1770 .name = "Xen paravirtualized framebuffer",
1771 },
1772 };
1773
1774 static bool vga_interface_available(VGAInterfaceType t)
1775 {
1776 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1777
1778 assert(t < VGA_TYPE_MAX);
1779 return !ti->class_names[0] ||
1780 object_class_by_name(ti->class_names[0]) ||
1781 object_class_by_name(ti->class_names[1]);
1782 }
1783
1784 static const char *
1785 get_default_vga_model(const MachineClass *machine_class)
1786 {
1787 if (machine_class->default_display) {
1788 return machine_class->default_display;
1789 } else if (vga_interface_available(VGA_CIRRUS)) {
1790 return "cirrus";
1791 } else if (vga_interface_available(VGA_STD)) {
1792 return "std";
1793 }
1794
1795 return NULL;
1796 }
1797
1798 static void select_vgahw(const MachineClass *machine_class, const char *p)
1799 {
1800 const char *opts;
1801 int t;
1802
1803 if (g_str_equal(p, "help")) {
1804 const char *def = get_default_vga_model(machine_class);
1805
1806 for (t = 0; t < VGA_TYPE_MAX; t++) {
1807 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1808
1809 if (vga_interface_available(t) && ti->opt_name) {
1810 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1811 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1812 }
1813 }
1814 exit(0);
1815 }
1816
1817 assert(vga_interface_type == VGA_NONE);
1818 for (t = 0; t < VGA_TYPE_MAX; t++) {
1819 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1820 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1821 if (!vga_interface_available(t)) {
1822 error_report("%s not available", ti->name);
1823 exit(1);
1824 }
1825 vga_interface_type = t;
1826 break;
1827 }
1828 }
1829 if (t == VGA_TYPE_MAX) {
1830 invalid_vga:
1831 error_report("unknown vga type: %s", p);
1832 exit(1);
1833 }
1834 while (*opts) {
1835 const char *nextopt;
1836
1837 if (strstart(opts, ",retrace=", &nextopt)) {
1838 opts = nextopt;
1839 if (strstart(opts, "dumb", &nextopt))
1840 vga_retrace_method = VGA_RETRACE_DUMB;
1841 else if (strstart(opts, "precise", &nextopt))
1842 vga_retrace_method = VGA_RETRACE_PRECISE;
1843 else goto invalid_vga;
1844 } else goto invalid_vga;
1845 opts = nextopt;
1846 }
1847 }
1848
1849 static void parse_display_qapi(const char *optarg)
1850 {
1851 DisplayOptions *opts;
1852 Visitor *v;
1853
1854 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1855
1856 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1857 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1858
1859 qapi_free_DisplayOptions(opts);
1860 visit_free(v);
1861 }
1862
1863 DisplayOptions *qmp_query_display_options(Error **errp)
1864 {
1865 return QAPI_CLONE(DisplayOptions, &dpy);
1866 }
1867
1868 static void parse_display(const char *p)
1869 {
1870 const char *opts;
1871
1872 if (strstart(p, "sdl", &opts)) {
1873 /*
1874 * sdl DisplayType needs hand-crafted parser instead of
1875 * parse_display_qapi() due to some options not in
1876 * DisplayOptions, specifically:
1877 * - frame
1878 * Already deprecated.
1879 * - ctrl_grab + alt_grab
1880 * Not clear yet what happens to them long-term. Should
1881 * replaced by something better or deprecated and dropped.
1882 */
1883 dpy.type = DISPLAY_TYPE_SDL;
1884 while (*opts) {
1885 const char *nextopt;
1886
1887 if (strstart(opts, ",alt_grab=", &nextopt)) {
1888 opts = nextopt;
1889 if (strstart(opts, "on", &nextopt)) {
1890 alt_grab = 1;
1891 } else if (strstart(opts, "off", &nextopt)) {
1892 alt_grab = 0;
1893 } else {
1894 goto invalid_sdl_args;
1895 }
1896 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1897 opts = nextopt;
1898 if (strstart(opts, "on", &nextopt)) {
1899 ctrl_grab = 1;
1900 } else if (strstart(opts, "off", &nextopt)) {
1901 ctrl_grab = 0;
1902 } else {
1903 goto invalid_sdl_args;
1904 }
1905 } else if (strstart(opts, ",window_close=", &nextopt)) {
1906 opts = nextopt;
1907 dpy.has_window_close = true;
1908 if (strstart(opts, "on", &nextopt)) {
1909 dpy.window_close = true;
1910 } else if (strstart(opts, "off", &nextopt)) {
1911 dpy.window_close = false;
1912 } else {
1913 goto invalid_sdl_args;
1914 }
1915 } else if (strstart(opts, ",gl=", &nextopt)) {
1916 opts = nextopt;
1917 dpy.has_gl = true;
1918 if (strstart(opts, "on", &nextopt)) {
1919 dpy.gl = DISPLAYGL_MODE_ON;
1920 } else if (strstart(opts, "core", &nextopt)) {
1921 dpy.gl = DISPLAYGL_MODE_CORE;
1922 } else if (strstart(opts, "es", &nextopt)) {
1923 dpy.gl = DISPLAYGL_MODE_ES;
1924 } else if (strstart(opts, "off", &nextopt)) {
1925 dpy.gl = DISPLAYGL_MODE_OFF;
1926 } else {
1927 goto invalid_sdl_args;
1928 }
1929 } else {
1930 invalid_sdl_args:
1931 error_report("invalid SDL option string");
1932 exit(1);
1933 }
1934 opts = nextopt;
1935 }
1936 } else if (strstart(p, "vnc", &opts)) {
1937 /*
1938 * vnc isn't a (local) DisplayType but a protocol for remote
1939 * display access.
1940 */
1941 if (*opts == '=') {
1942 vnc_parse(opts + 1, &error_fatal);
1943 } else {
1944 error_report("VNC requires a display argument vnc=<display>");
1945 exit(1);
1946 }
1947 } else {
1948 parse_display_qapi(p);
1949 }
1950 }
1951
1952 char *qemu_find_file(int type, const char *name)
1953 {
1954 int i;
1955 const char *subdir;
1956 char *buf;
1957
1958 /* Try the name as a straight path first */
1959 if (access(name, R_OK) == 0) {
1960 trace_load_file(name, name);
1961 return g_strdup(name);
1962 }
1963
1964 switch (type) {
1965 case QEMU_FILE_TYPE_BIOS:
1966 subdir = "";
1967 break;
1968 case QEMU_FILE_TYPE_KEYMAP:
1969 subdir = "keymaps/";
1970 break;
1971 default:
1972 abort();
1973 }
1974
1975 for (i = 0; i < data_dir_idx; i++) {
1976 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
1977 if (access(buf, R_OK) == 0) {
1978 trace_load_file(name, buf);
1979 return buf;
1980 }
1981 g_free(buf);
1982 }
1983 return NULL;
1984 }
1985
1986 static void qemu_add_data_dir(const char *path)
1987 {
1988 int i;
1989
1990 if (path == NULL) {
1991 return;
1992 }
1993 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
1994 return;
1995 }
1996 for (i = 0; i < data_dir_idx; i++) {
1997 if (strcmp(data_dir[i], path) == 0) {
1998 return; /* duplicate */
1999 }
2000 }
2001 data_dir[data_dir_idx++] = g_strdup(path);
2002 }
2003
2004 static inline bool nonempty_str(const char *str)
2005 {
2006 return str && *str;
2007 }
2008
2009 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2010 {
2011 gchar *buf;
2012 size_t size;
2013 const char *name, *file, *str;
2014 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2015
2016 if (fw_cfg == NULL) {
2017 error_setg(errp, "fw_cfg device not available");
2018 return -1;
2019 }
2020 name = qemu_opt_get(opts, "name");
2021 file = qemu_opt_get(opts, "file");
2022 str = qemu_opt_get(opts, "string");
2023
2024 /* we need name and either a file or the content string */
2025 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2026 error_setg(errp, "invalid argument(s)");
2027 return -1;
2028 }
2029 if (nonempty_str(file) && nonempty_str(str)) {
2030 error_setg(errp, "file and string are mutually exclusive");
2031 return -1;
2032 }
2033 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2034 error_setg(errp, "name too long (max. %d char)",
2035 FW_CFG_MAX_FILE_PATH - 1);
2036 return -1;
2037 }
2038 if (strncmp(name, "opt/", 4) != 0) {
2039 warn_report("externally provided fw_cfg item names "
2040 "should be prefixed with \"opt/\"");
2041 }
2042 if (nonempty_str(str)) {
2043 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2044 buf = g_memdup(str, size);
2045 } else {
2046 GError *err = NULL;
2047 if (!g_file_get_contents(file, &buf, &size, &err)) {
2048 error_setg(errp, "can't load %s: %s", file, err->message);
2049 g_error_free(err);
2050 return -1;
2051 }
2052 }
2053 /* For legacy, keep user files in a specific global order. */
2054 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2055 fw_cfg_add_file(fw_cfg, name, buf, size);
2056 fw_cfg_reset_order_override(fw_cfg);
2057 return 0;
2058 }
2059
2060 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2061 {
2062 return qdev_device_help(opts);
2063 }
2064
2065 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2066 {
2067 DeviceState *dev;
2068
2069 dev = qdev_device_add(opts, errp);
2070 if (!dev && *errp) {
2071 error_report_err(*errp);
2072 return -1;
2073 } else if (dev) {
2074 object_unref(OBJECT(dev));
2075 }
2076 return 0;
2077 }
2078
2079 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2080 {
2081 Error *local_err = NULL;
2082
2083 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2084 if (local_err) {
2085 error_propagate(errp, local_err);
2086 return -1;
2087 }
2088 exit(0);
2089 }
2090 return 0;
2091 }
2092
2093 #ifdef CONFIG_VIRTFS
2094 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2095 {
2096 return qemu_fsdev_add(opts, errp);
2097 }
2098 #endif
2099
2100 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2101 {
2102 Chardev *chr;
2103 bool qmp;
2104 bool pretty = false;
2105 const char *chardev;
2106 const char *mode;
2107
2108 mode = qemu_opt_get(opts, "mode");
2109 if (mode == NULL) {
2110 mode = "readline";
2111 }
2112 if (strcmp(mode, "readline") == 0) {
2113 qmp = false;
2114 } else if (strcmp(mode, "control") == 0) {
2115 qmp = true;
2116 } else {
2117 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2118 return -1;
2119 }
2120
2121 if (!qmp && qemu_opt_get(opts, "pretty")) {
2122 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2123 "and will be removed in future versions");
2124 }
2125 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2126 pretty = true;
2127 }
2128
2129 chardev = qemu_opt_get(opts, "chardev");
2130 if (!chardev) {
2131 error_report("chardev is required");
2132 exit(1);
2133 }
2134 chr = qemu_chr_find(chardev);
2135 if (chr == NULL) {
2136 error_setg(errp, "chardev \"%s\" not found", chardev);
2137 return -1;
2138 }
2139
2140 if (qmp) {
2141 monitor_init_qmp(chr, pretty);
2142 } else {
2143 monitor_init_hmp(chr, true);
2144 }
2145 return 0;
2146 }
2147
2148 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2149 {
2150 static int monitor_device_index = 0;
2151 QemuOpts *opts;
2152 const char *p;
2153 char label[32];
2154
2155 if (strstart(optarg, "chardev:", &p)) {
2156 snprintf(label, sizeof(label), "%s", p);
2157 } else {
2158 snprintf(label, sizeof(label), "compat_monitor%d",
2159 monitor_device_index);
2160 opts = qemu_chr_parse_compat(label, optarg, true);
2161 if (!opts) {
2162 error_report("parse error: %s", optarg);
2163 exit(1);
2164 }
2165 }
2166
2167 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2168 qemu_opt_set(opts, "mode", mode, &error_abort);
2169 qemu_opt_set(opts, "chardev", label, &error_abort);
2170 if (!strcmp(mode, "control")) {
2171 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2172 } else {
2173 assert(pretty == false);
2174 }
2175 monitor_device_index++;
2176 }
2177
2178 struct device_config {
2179 enum {
2180 DEV_USB, /* -usbdevice */
2181 DEV_SERIAL, /* -serial */
2182 DEV_PARALLEL, /* -parallel */
2183 DEV_DEBUGCON, /* -debugcon */
2184 DEV_GDB, /* -gdb, -s */
2185 DEV_SCLP, /* s390 sclp */
2186 } type;
2187 const char *cmdline;
2188 Location loc;
2189 QTAILQ_ENTRY(device_config) next;
2190 };
2191
2192 static QTAILQ_HEAD(, device_config) device_configs =
2193 QTAILQ_HEAD_INITIALIZER(device_configs);
2194
2195 static void add_device_config(int type, const char *cmdline)
2196 {
2197 struct device_config *conf;
2198
2199 conf = g_malloc0(sizeof(*conf));
2200 conf->type = type;
2201 conf->cmdline = cmdline;
2202 loc_save(&conf->loc);
2203 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2204 }
2205
2206 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2207 {
2208 struct device_config *conf;
2209 int rc;
2210
2211 QTAILQ_FOREACH(conf, &device_configs, next) {
2212 if (conf->type != type)
2213 continue;
2214 loc_push_restore(&conf->loc);
2215 rc = func(conf->cmdline);
2216 loc_pop(&conf->loc);
2217 if (rc) {
2218 return rc;
2219 }
2220 }
2221 return 0;
2222 }
2223
2224 static int serial_parse(const char *devname)
2225 {
2226 int index = num_serial_hds;
2227 char label[32];
2228
2229 if (strcmp(devname, "none") == 0)
2230 return 0;
2231 snprintf(label, sizeof(label), "serial%d", index);
2232 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2233
2234 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2235 if (!serial_hds[index]) {
2236 error_report("could not connect serial device"
2237 " to character backend '%s'", devname);
2238 return -1;
2239 }
2240 num_serial_hds++;
2241 return 0;
2242 }
2243
2244 Chardev *serial_hd(int i)
2245 {
2246 assert(i >= 0);
2247 if (i < num_serial_hds) {
2248 return serial_hds[i];
2249 }
2250 return NULL;
2251 }
2252
2253 int serial_max_hds(void)
2254 {
2255 return num_serial_hds;
2256 }
2257
2258 static int parallel_parse(const char *devname)
2259 {
2260 static int index = 0;
2261 char label[32];
2262
2263 if (strcmp(devname, "none") == 0)
2264 return 0;
2265 if (index == MAX_PARALLEL_PORTS) {
2266 error_report("too many parallel ports");
2267 exit(1);
2268 }
2269 snprintf(label, sizeof(label), "parallel%d", index);
2270 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2271 if (!parallel_hds[index]) {
2272 error_report("could not connect parallel device"
2273 " to character backend '%s'", devname);
2274 return -1;
2275 }
2276 index++;
2277 return 0;
2278 }
2279
2280 static int debugcon_parse(const char *devname)
2281 {
2282 QemuOpts *opts;
2283
2284 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2285 error_report("invalid character backend '%s'", devname);
2286 exit(1);
2287 }
2288 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2289 if (!opts) {
2290 error_report("already have a debugcon device");
2291 exit(1);
2292 }
2293 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2294 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2295 return 0;
2296 }
2297
2298 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2299 {
2300 const MachineClass *mc1 = a, *mc2 = b;
2301 int res;
2302
2303 if (mc1->family == NULL) {
2304 if (mc2->family == NULL) {
2305 /* Compare standalone machine types against each other; they sort
2306 * in increasing order.
2307 */
2308 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2309 object_class_get_name(OBJECT_CLASS(mc2)));
2310 }
2311
2312 /* Standalone machine types sort after families. */
2313 return 1;
2314 }
2315
2316 if (mc2->family == NULL) {
2317 /* Families sort before standalone machine types. */
2318 return -1;
2319 }
2320
2321 /* Families sort between each other alphabetically increasingly. */
2322 res = strcmp(mc1->family, mc2->family);
2323 if (res != 0) {
2324 return res;
2325 }
2326
2327 /* Within the same family, machine types sort in decreasing order. */
2328 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2329 object_class_get_name(OBJECT_CLASS(mc1)));
2330 }
2331
2332 static MachineClass *machine_parse(const char *name, GSList *machines)
2333 {
2334 MachineClass *mc;
2335 GSList *el;
2336
2337 if (is_help_option(name)) {
2338 printf("Supported machines are:\n");
2339 machines = g_slist_sort(machines, machine_class_cmp);
2340 for (el = machines; el; el = el->next) {
2341 MachineClass *mc = el->data;
2342 if (mc->alias) {
2343 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2344 }
2345 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2346 mc->is_default ? " (default)" : "",
2347 mc->deprecation_reason ? " (deprecated)" : "");
2348 }
2349 exit(0);
2350 }
2351
2352 mc = find_machine(name, machines);
2353 if (!mc) {
2354 error_report("unsupported machine type");
2355 error_printf("Use -machine help to list supported machines\n");
2356 exit(1);
2357 }
2358 return mc;
2359 }
2360
2361 void qemu_add_exit_notifier(Notifier *notify)
2362 {
2363 notifier_list_add(&exit_notifiers, notify);
2364 }
2365
2366 void qemu_remove_exit_notifier(Notifier *notify)
2367 {
2368 notifier_remove(notify);
2369 }
2370
2371 static void qemu_run_exit_notifiers(void)
2372 {
2373 notifier_list_notify(&exit_notifiers, NULL);
2374 }
2375
2376 static const char *pid_file;
2377 static Notifier qemu_unlink_pidfile_notifier;
2378
2379 static void qemu_unlink_pidfile(Notifier *n, void *data)
2380 {
2381 if (pid_file) {
2382 unlink(pid_file);
2383 }
2384 }
2385
2386 bool machine_init_done;
2387
2388 void qemu_add_machine_init_done_notifier(Notifier *notify)
2389 {
2390 notifier_list_add(&machine_init_done_notifiers, notify);
2391 if (machine_init_done) {
2392 notify->notify(notify, NULL);
2393 }
2394 }
2395
2396 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2397 {
2398 notifier_remove(notify);
2399 }
2400
2401 static void qemu_run_machine_init_done_notifiers(void)
2402 {
2403 machine_init_done = true;
2404 notifier_list_notify(&machine_init_done_notifiers, NULL);
2405 }
2406
2407 static const QEMUOption *lookup_opt(int argc, char **argv,
2408 const char **poptarg, int *poptind)
2409 {
2410 const QEMUOption *popt;
2411 int optind = *poptind;
2412 char *r = argv[optind];
2413 const char *optarg;
2414
2415 loc_set_cmdline(argv, optind, 1);
2416 optind++;
2417 /* Treat --foo the same as -foo. */
2418 if (r[1] == '-')
2419 r++;
2420 popt = qemu_options;
2421 for(;;) {
2422 if (!popt->name) {
2423 error_report("invalid option");
2424 exit(1);
2425 }
2426 if (!strcmp(popt->name, r + 1))
2427 break;
2428 popt++;
2429 }
2430 if (popt->flags & HAS_ARG) {
2431 if (optind >= argc) {
2432 error_report("requires an argument");
2433 exit(1);
2434 }
2435 optarg = argv[optind++];
2436 loc_set_cmdline(argv, optind - 2, 2);
2437 } else {
2438 optarg = NULL;
2439 }
2440
2441 *poptarg = optarg;
2442 *poptind = optind;
2443
2444 return popt;
2445 }
2446
2447 static MachineClass *select_machine(void)
2448 {
2449 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2450 MachineClass *machine_class = find_default_machine(machines);
2451 const char *optarg;
2452 QemuOpts *opts;
2453 Location loc;
2454
2455 loc_push_none(&loc);
2456
2457 opts = qemu_get_machine_opts();
2458 qemu_opts_loc_restore(opts);
2459
2460 optarg = qemu_opt_get(opts, "type");
2461 if (optarg) {
2462 machine_class = machine_parse(optarg, machines);
2463 }
2464
2465 if (!machine_class) {
2466 error_report("No machine specified, and there is no default");
2467 error_printf("Use -machine help to list supported machines\n");
2468 exit(1);
2469 }
2470
2471 loc_pop(&loc);
2472 g_slist_free(machines);
2473 return machine_class;
2474 }
2475
2476 static int object_parse_property_opt(Object *obj,
2477 const char *name, const char *value,
2478 const char *skip, Error **errp)
2479 {
2480 Error *local_err = NULL;
2481
2482 if (g_str_equal(name, skip)) {
2483 return 0;
2484 }
2485
2486 object_property_parse(obj, value, name, &local_err);
2487
2488 if (local_err) {
2489 error_propagate(errp, local_err);
2490 return -1;
2491 }
2492
2493 return 0;
2494 }
2495
2496 static int machine_set_property(void *opaque,
2497 const char *name, const char *value,
2498 Error **errp)
2499 {
2500 g_autofree char *qom_name = g_strdup(name);
2501 char *p;
2502
2503 for (p = qom_name; *p; p++) {
2504 if (*p == '_') {
2505 *p = '-';
2506 }
2507 }
2508
2509 /* Legacy options do not correspond to MachineState properties. */
2510 if (g_str_equal(qom_name, "accel")) {
2511 return 0;
2512 }
2513 if (g_str_equal(qom_name, "igd-passthru")) {
2514 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2515 return 0;
2516 }
2517 if (g_str_equal(qom_name, "kvm-shadow-mem") ||
2518 g_str_equal(qom_name, "kernel-irqchip")) {
2519 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2520 return 0;
2521 }
2522
2523 return object_parse_property_opt(opaque, name, value, "type", errp);
2524 }
2525
2526 /*
2527 * Initial object creation happens before all other
2528 * QEMU data types are created. The majority of objects
2529 * can be created at this point. The rng-egd object
2530 * cannot be created here, as it depends on the chardev
2531 * already existing.
2532 */
2533 static bool object_create_initial(const char *type, QemuOpts *opts)
2534 {
2535 if (user_creatable_print_help(type, opts)) {
2536 exit(0);
2537 }
2538
2539 /*
2540 * Objects should not be made "delayed" without a reason. If you
2541 * add one, state the reason in a comment!
2542 */
2543
2544 /* Reason: rng-egd property "chardev" */
2545 if (g_str_equal(type, "rng-egd")) {
2546 return false;
2547 }
2548
2549 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2550 /* Reason: cryptodev-vhost-user property "chardev" */
2551 if (g_str_equal(type, "cryptodev-vhost-user")) {
2552 return false;
2553 }
2554 #endif
2555
2556 /*
2557 * Reason: filter-* property "netdev" etc.
2558 */
2559 if (g_str_equal(type, "filter-buffer") ||
2560 g_str_equal(type, "filter-dump") ||
2561 g_str_equal(type, "filter-mirror") ||
2562 g_str_equal(type, "filter-redirector") ||
2563 g_str_equal(type, "colo-compare") ||
2564 g_str_equal(type, "filter-rewriter") ||
2565 g_str_equal(type, "filter-replay")) {
2566 return false;
2567 }
2568
2569 /* Memory allocation by backends needs to be done
2570 * after configure_accelerator() (due to the tcg_enabled()
2571 * checks at memory_region_init_*()).
2572 *
2573 * Also, allocation of large amounts of memory may delay
2574 * chardev initialization for too long, and trigger timeouts
2575 * on software that waits for a monitor socket to be created
2576 * (e.g. libvirt).
2577 */
2578 if (g_str_has_prefix(type, "memory-backend-")) {
2579 return false;
2580 }
2581
2582 return true;
2583 }
2584
2585
2586 /*
2587 * The remainder of object creation happens after the
2588 * creation of chardev, fsdev, net clients and device data types.
2589 */
2590 static bool object_create_delayed(const char *type, QemuOpts *opts)
2591 {
2592 return !object_create_initial(type, opts);
2593 }
2594
2595
2596 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2597 MachineClass *mc)
2598 {
2599 uint64_t sz;
2600 const char *mem_str;
2601 const ram_addr_t default_ram_size = mc->default_ram_size;
2602 QemuOpts *opts = qemu_find_opts_singleton("memory");
2603 Location loc;
2604
2605 loc_push_none(&loc);
2606 qemu_opts_loc_restore(opts);
2607
2608 sz = 0;
2609 mem_str = qemu_opt_get(opts, "size");
2610 if (mem_str) {
2611 if (!*mem_str) {
2612 error_report("missing 'size' option value");
2613 exit(EXIT_FAILURE);
2614 }
2615
2616 sz = qemu_opt_get_size(opts, "size", ram_size);
2617
2618 /* Fix up legacy suffix-less format */
2619 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2620 uint64_t overflow_check = sz;
2621
2622 sz *= MiB;
2623 if (sz / MiB != overflow_check) {
2624 error_report("too large 'size' option value");
2625 exit(EXIT_FAILURE);
2626 }
2627 }
2628 }
2629
2630 /* backward compatibility behaviour for case "-m 0" */
2631 if (sz == 0) {
2632 sz = default_ram_size;
2633 }
2634
2635 sz = QEMU_ALIGN_UP(sz, 8192);
2636 ram_size = sz;
2637 if (ram_size != sz) {
2638 error_report("ram size too large");
2639 exit(EXIT_FAILURE);
2640 }
2641
2642 /* store value for the future use */
2643 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2644 *maxram_size = ram_size;
2645
2646 if (qemu_opt_get(opts, "maxmem")) {
2647 uint64_t slots;
2648
2649 sz = qemu_opt_get_size(opts, "maxmem", 0);
2650 slots = qemu_opt_get_number(opts, "slots", 0);
2651 if (sz < ram_size) {
2652 error_report("invalid value of -m option maxmem: "
2653 "maximum memory size (0x%" PRIx64 ") must be at least "
2654 "the initial memory size (0x" RAM_ADDR_FMT ")",
2655 sz, ram_size);
2656 exit(EXIT_FAILURE);
2657 } else if (slots && sz == ram_size) {
2658 error_report("invalid value of -m option maxmem: "
2659 "memory slots were specified but maximum memory size "
2660 "(0x%" PRIx64 ") is equal to the initial memory size "
2661 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2662 exit(EXIT_FAILURE);
2663 }
2664
2665 *maxram_size = sz;
2666 *ram_slots = slots;
2667 } else if (qemu_opt_get(opts, "slots")) {
2668 error_report("invalid -m option value: missing 'maxmem' option");
2669 exit(EXIT_FAILURE);
2670 }
2671
2672 loc_pop(&loc);
2673 }
2674
2675 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2676 {
2677 GlobalProperty *g;
2678
2679 g = g_malloc0(sizeof(*g));
2680 g->driver = qemu_opt_get(opts, "driver");
2681 g->property = qemu_opt_get(opts, "property");
2682 g->value = qemu_opt_get(opts, "value");
2683 qdev_prop_register_global(g);
2684 return 0;
2685 }
2686
2687 static int qemu_read_default_config_file(void)
2688 {
2689 int ret;
2690
2691 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2692 if (ret < 0 && ret != -ENOENT) {
2693 return ret;
2694 }
2695
2696 return 0;
2697 }
2698
2699 static void user_register_global_props(void)
2700 {
2701 qemu_opts_foreach(qemu_find_opts("global"),
2702 global_init_func, NULL, NULL);
2703 }
2704
2705 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2706 {
2707 configure_icount(opts, errp);
2708 return 0;
2709 }
2710
2711 static int accelerator_set_property(void *opaque,
2712 const char *name, const char *value,
2713 Error **errp)
2714 {
2715 return object_parse_property_opt(opaque, name, value, "accel", errp);
2716 }
2717
2718 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2719 {
2720 bool *p_init_failed = opaque;
2721 const char *acc = qemu_opt_get(opts, "accel");
2722 AccelClass *ac = accel_find(acc);
2723 AccelState *accel;
2724 int ret;
2725
2726 if (!ac) {
2727 *p_init_failed = true;
2728 error_report("invalid accelerator %s", acc);
2729 return 0;
2730 }
2731 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2732 object_apply_compat_props(OBJECT(accel));
2733 qemu_opt_foreach(opts, accelerator_set_property,
2734 accel,
2735 &error_fatal);
2736
2737 ret = accel_init_machine(accel, current_machine);
2738 if (ret < 0) {
2739 *p_init_failed = true;
2740 error_report("failed to initialize %s: %s",
2741 acc, strerror(-ret));
2742 return 0;
2743 }
2744
2745 return 1;
2746 }
2747
2748 static void configure_accelerators(const char *progname)
2749 {
2750 const char *accel;
2751 char **accel_list, **tmp;
2752 bool accel_initialised = false;
2753 bool init_failed = false;
2754
2755 qemu_opts_foreach(qemu_find_opts("icount"),
2756 do_configure_icount, NULL, &error_fatal);
2757
2758 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2759 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2760 if (accel == NULL) {
2761 /* Select the default accelerator */
2762 if (!accel_find("tcg") && !accel_find("kvm")) {
2763 error_report("No accelerator selected and"
2764 " no default accelerator available");
2765 exit(1);
2766 } else {
2767 int pnlen = strlen(progname);
2768 if (pnlen >= 3 && g_str_equal(&progname[pnlen - 3], "kvm")) {
2769 /* If the program name ends with "kvm", we prefer KVM */
2770 accel = "kvm:tcg";
2771 } else {
2772 accel = "tcg:kvm";
2773 }
2774 }
2775 }
2776
2777 accel_list = g_strsplit(accel, ":", 0);
2778
2779 for (tmp = accel_list; !accel_initialised && tmp && *tmp; tmp++) {
2780 /*
2781 * Filter invalid accelerators here, to prevent obscenities
2782 * such as "-machine accel=tcg,,thread=single".
2783 */
2784 if (accel_find(*tmp)) {
2785 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2786 } else {
2787 init_failed = true;
2788 error_report("invalid accelerator %s", *tmp);
2789 }
2790 }
2791 } else {
2792 if (accel != NULL) {
2793 error_report("The -accel and \"-machine accel=\" options are incompatible");
2794 exit(1);
2795 }
2796 }
2797
2798 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2799 do_configure_accelerator, &init_failed, &error_fatal)) {
2800 if (!init_failed) {
2801 error_report("no accelerator found");
2802 }
2803 exit(1);
2804 }
2805
2806 if (init_failed) {
2807 AccelClass *ac = ACCEL_GET_CLASS(current_machine->accelerator);
2808 error_report("falling back to %s", ac->name);
2809 }
2810
2811 if (use_icount && !(tcg_enabled() || qtest_enabled())) {
2812 error_report("-icount is not allowed with hardware virtualization");
2813 exit(1);
2814 }
2815 }
2816
2817 int main(int argc, char **argv, char **envp)
2818 {
2819 int i;
2820 int snapshot, linux_boot;
2821 const char *initrd_filename;
2822 const char *kernel_filename, *kernel_cmdline;
2823 const char *boot_order = NULL;
2824 const char *boot_once = NULL;
2825 DisplayState *ds;
2826 QemuOpts *opts, *machine_opts;
2827 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2828 QemuOptsList *olist;
2829 int optind;
2830 const char *optarg;
2831 const char *loadvm = NULL;
2832 MachineClass *machine_class;
2833 const char *cpu_option;
2834 const char *vga_model = NULL;
2835 const char *qtest_chrdev = NULL;
2836 const char *qtest_log = NULL;
2837 const char *incoming = NULL;
2838 bool userconfig = true;
2839 bool nographic = false;
2840 int display_remote = 0;
2841 const char *log_mask = NULL;
2842 const char *log_file = NULL;
2843 char *trace_file = NULL;
2844 ram_addr_t maxram_size;
2845 uint64_t ram_slots = 0;
2846 FILE *vmstate_dump_file = NULL;
2847 Error *main_loop_err = NULL;
2848 Error *err = NULL;
2849 bool list_data_dirs = false;
2850 char *dir, **dirs;
2851 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2852 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2853
2854 os_set_line_buffering();
2855
2856 error_init(argv[0]);
2857 module_call_init(MODULE_INIT_TRACE);
2858
2859 qemu_init_cpu_list();
2860 qemu_init_cpu_loop();
2861
2862 qemu_mutex_lock_iothread();
2863
2864 atexit(qemu_run_exit_notifiers);
2865 qemu_init_exec_dir(argv[0]);
2866
2867 module_call_init(MODULE_INIT_QOM);
2868
2869 qemu_add_opts(&qemu_drive_opts);
2870 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2871 qemu_add_drive_opts(&qemu_common_drive_opts);
2872 qemu_add_drive_opts(&qemu_drive_opts);
2873 qemu_add_drive_opts(&bdrv_runtime_opts);
2874 qemu_add_opts(&qemu_chardev_opts);
2875 qemu_add_opts(&qemu_device_opts);
2876 qemu_add_opts(&qemu_netdev_opts);
2877 qemu_add_opts(&qemu_nic_opts);
2878 qemu_add_opts(&qemu_net_opts);
2879 qemu_add_opts(&qemu_rtc_opts);
2880 qemu_add_opts(&qemu_global_opts);
2881 qemu_add_opts(&qemu_mon_opts);
2882 qemu_add_opts(&qemu_trace_opts);
2883 qemu_plugin_add_opts();
2884 qemu_add_opts(&qemu_option_rom_opts);
2885 qemu_add_opts(&qemu_machine_opts);
2886 qemu_add_opts(&qemu_accel_opts);
2887 qemu_add_opts(&qemu_mem_opts);
2888 qemu_add_opts(&qemu_smp_opts);
2889 qemu_add_opts(&qemu_boot_opts);
2890 qemu_add_opts(&qemu_add_fd_opts);
2891 qemu_add_opts(&qemu_object_opts);
2892 qemu_add_opts(&qemu_tpmdev_opts);
2893 qemu_add_opts(&qemu_realtime_opts);
2894 qemu_add_opts(&qemu_overcommit_opts);
2895 qemu_add_opts(&qemu_msg_opts);
2896 qemu_add_opts(&qemu_name_opts);
2897 qemu_add_opts(&qemu_numa_opts);
2898 qemu_add_opts(&qemu_icount_opts);
2899 qemu_add_opts(&qemu_semihosting_config_opts);
2900 qemu_add_opts(&qemu_fw_cfg_opts);
2901 module_call_init(MODULE_INIT_OPTS);
2902
2903 runstate_init();
2904 precopy_infrastructure_init();
2905 postcopy_infrastructure_init();
2906 monitor_init_globals();
2907
2908 if (qcrypto_init(&err) < 0) {
2909 error_reportf_err(err, "cannot initialize crypto: ");
2910 exit(1);
2911 }
2912
2913 QTAILQ_INIT(&vm_change_state_head);
2914 os_setup_early_signal_handling();
2915
2916 cpu_option = NULL;
2917 snapshot = 0;
2918
2919 nb_nics = 0;
2920
2921 bdrv_init_with_whitelist();
2922
2923 autostart = 1;
2924
2925 /* first pass of option parsing */
2926 optind = 1;
2927 while (optind < argc) {
2928 if (argv[optind][0] != '-') {
2929 /* disk image */
2930 optind++;
2931 } else {
2932 const QEMUOption *popt;
2933
2934 popt = lookup_opt(argc, argv, &optarg, &optind);
2935 switch (popt->index) {
2936 case QEMU_OPTION_nouserconfig:
2937 userconfig = false;
2938 break;
2939 }
2940 }
2941 }
2942
2943 if (userconfig) {
2944 if (qemu_read_default_config_file() < 0) {
2945 exit(1);
2946 }
2947 }
2948
2949 /* second pass of option parsing */
2950 optind = 1;
2951 for(;;) {
2952 if (optind >= argc)
2953 break;
2954 if (argv[optind][0] != '-') {
2955 loc_set_cmdline(argv, optind, 1);
2956 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2957 } else {
2958 const QEMUOption *popt;
2959
2960 popt = lookup_opt(argc, argv, &optarg, &optind);
2961 if (!(popt->arch_mask & arch_type)) {
2962 error_report("Option not supported for this target");
2963 exit(1);
2964 }
2965 switch(popt->index) {
2966 case QEMU_OPTION_cpu:
2967 /* hw initialization will check this */
2968 cpu_option = optarg;
2969 break;
2970 case QEMU_OPTION_hda:
2971 case QEMU_OPTION_hdb:
2972 case QEMU_OPTION_hdc:
2973 case QEMU_OPTION_hdd:
2974 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2975 HD_OPTS);
2976 break;
2977 case QEMU_OPTION_blockdev:
2978 {
2979 Visitor *v;
2980 BlockdevOptionsQueueEntry *bdo;
2981
2982 v = qobject_input_visitor_new_str(optarg, "driver",
2983 &error_fatal);
2984
2985 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2986 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2987 &error_fatal);
2988 visit_free(v);
2989 loc_save(&bdo->loc);
2990 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2991 break;
2992 }
2993 case QEMU_OPTION_drive:
2994 if (drive_def(optarg) == NULL) {
2995 exit(1);
2996 }
2997 break;
2998 case QEMU_OPTION_set:
2999 if (qemu_set_option(optarg) != 0)
3000 exit(1);
3001 break;
3002 case QEMU_OPTION_global:
3003 if (qemu_global_option(optarg) != 0)
3004 exit(1);
3005 break;
3006 case QEMU_OPTION_mtdblock:
3007 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3008 break;
3009 case QEMU_OPTION_sd:
3010 drive_add(IF_SD, -1, optarg, SD_OPTS);
3011 break;
3012 case QEMU_OPTION_pflash:
3013 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3014 break;
3015 case QEMU_OPTION_snapshot:
3016 {
3017 Error *blocker = NULL;
3018 snapshot = 1;
3019 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3020 "-snapshot");
3021 replay_add_blocker(blocker);
3022 }
3023 break;
3024 case QEMU_OPTION_numa:
3025 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3026 optarg, true);
3027 if (!opts) {
3028 exit(1);
3029 }
3030 break;
3031 case QEMU_OPTION_display:
3032 parse_display(optarg);
3033 break;
3034 case QEMU_OPTION_nographic:
3035 olist = qemu_find_opts("machine");
3036 qemu_opts_parse_noisily(olist, "graphics=off", false);
3037 nographic = true;
3038 dpy.type = DISPLAY_TYPE_NONE;
3039 break;
3040 case QEMU_OPTION_curses:
3041 #ifdef CONFIG_CURSES
3042 dpy.type = DISPLAY_TYPE_CURSES;
3043 #else
3044 error_report("curses or iconv support is disabled");
3045 exit(1);
3046 #endif
3047 break;
3048 case QEMU_OPTION_portrait:
3049 graphic_rotate = 90;
3050 break;
3051 case QEMU_OPTION_rotate:
3052 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3053 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3054 graphic_rotate != 180 && graphic_rotate != 270) {
3055 error_report("only 90, 180, 270 deg rotation is available");
3056 exit(1);
3057 }
3058 break;
3059 case QEMU_OPTION_kernel:
3060 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3061 &error_abort);
3062 break;
3063 case QEMU_OPTION_initrd:
3064 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3065 &error_abort);
3066 break;
3067 case QEMU_OPTION_append:
3068 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3069 &error_abort);
3070 break;
3071 case QEMU_OPTION_dtb:
3072 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3073 &error_abort);
3074 break;
3075 case QEMU_OPTION_cdrom:
3076 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3077 break;
3078 case QEMU_OPTION_boot:
3079 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3080 optarg, true);
3081 if (!opts) {
3082 exit(1);
3083 }
3084 break;
3085 case QEMU_OPTION_fda:
3086 case QEMU_OPTION_fdb:
3087 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3088 optarg, FD_OPTS);
3089 break;
3090 case QEMU_OPTION_no_fd_bootchk:
3091 fd_bootchk = 0;
3092 break;
3093 case QEMU_OPTION_netdev:
3094 default_net = 0;
3095 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3096 exit(1);
3097 }
3098 break;
3099 case QEMU_OPTION_nic:
3100 default_net = 0;
3101 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3102 exit(1);
3103 }
3104 break;
3105 case QEMU_OPTION_net:
3106 default_net = 0;
3107 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3108 exit(1);
3109 }
3110 break;
3111 #ifdef CONFIG_LIBISCSI
3112 case QEMU_OPTION_iscsi:
3113 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3114 optarg, false);
3115 if (!opts) {
3116 exit(1);
3117 }
3118 break;
3119 #endif
3120 case QEMU_OPTION_audio_help:
3121 audio_legacy_help();
3122 exit (0);
3123 break;
3124 case QEMU_OPTION_audiodev:
3125 audio_parse_option(optarg);
3126 break;
3127 case QEMU_OPTION_soundhw:
3128 select_soundhw (optarg);
3129 break;
3130 case QEMU_OPTION_h:
3131 help(0);
3132 break;
3133 case QEMU_OPTION_version:
3134 version();
3135 exit(0);
3136 break;
3137 case QEMU_OPTION_m:
3138 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3139 optarg, true);
3140 if (!opts) {
3141 exit(EXIT_FAILURE);
3142 }
3143 break;
3144 #ifdef CONFIG_TPM
3145 case QEMU_OPTION_tpmdev:
3146 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3147 exit(1);
3148 }
3149 break;
3150 #endif
3151 case QEMU_OPTION_mempath:
3152 mem_path = optarg;
3153 break;
3154 case QEMU_OPTION_mem_prealloc:
3155 mem_prealloc = 1;
3156 break;
3157 case QEMU_OPTION_d:
3158 log_mask = optarg;
3159 break;
3160 case QEMU_OPTION_D:
3161 log_file = optarg;
3162 break;
3163 case QEMU_OPTION_DFILTER:
3164 qemu_set_dfilter_ranges(optarg, &error_fatal);
3165 break;
3166 case QEMU_OPTION_seed:
3167 qemu_guest_random_seed_main(optarg, &error_fatal);
3168 break;
3169 case QEMU_OPTION_s:
3170 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3171 break;
3172 case QEMU_OPTION_gdb:
3173 add_device_config(DEV_GDB, optarg);
3174 break;
3175 case QEMU_OPTION_L:
3176 if (is_help_option(optarg)) {
3177 list_data_dirs = true;
3178 } else {
3179 qemu_add_data_dir(optarg);
3180 }
3181 break;
3182 case QEMU_OPTION_bios:
3183 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3184 &error_abort);
3185 break;
3186 case QEMU_OPTION_singlestep:
3187 singlestep = 1;
3188 break;
3189 case QEMU_OPTION_S:
3190 autostart = 0;
3191 break;
3192 case QEMU_OPTION_k:
3193 keyboard_layout = optarg;
3194 break;
3195 case QEMU_OPTION_vga:
3196 vga_model = optarg;
3197 default_vga = 0;
3198 break;
3199 case QEMU_OPTION_g:
3200 {
3201 const char *p;
3202 int w, h, depth;
3203 p = optarg;
3204 w = strtol(p, (char **)&p, 10);
3205 if (w <= 0) {
3206 graphic_error:
3207 error_report("invalid resolution or depth");
3208 exit(1);
3209 }
3210 if (*p != 'x')
3211 goto graphic_error;
3212 p++;
3213 h = strtol(p, (char **)&p, 10);
3214 if (h <= 0)
3215 goto graphic_error;
3216 if (*p == 'x') {
3217 p++;
3218 depth = strtol(p, (char **)&p, 10);
3219 if (depth != 1 && depth != 2 && depth != 4 &&
3220 depth != 8 && depth != 15 && depth != 16 &&
3221 depth != 24 && depth != 32)
3222 goto graphic_error;
3223 } else if (*p == '\0') {
3224 depth = graphic_depth;
3225 } else {
3226 goto graphic_error;
3227 }
3228
3229 graphic_width = w;
3230 graphic_height = h;
3231 graphic_depth = depth;
3232 }
3233 break;
3234 case QEMU_OPTION_echr:
3235 {
3236 char *r;
3237 term_escape_char = strtol(optarg, &r, 0);
3238 if (r == optarg)
3239 printf("Bad argument to echr\n");
3240 break;
3241 }
3242 case QEMU_OPTION_monitor:
3243 default_monitor = 0;
3244 if (strncmp(optarg, "none", 4)) {
3245 monitor_parse(optarg, "readline", false);
3246 }
3247 break;
3248 case QEMU_OPTION_qmp:
3249 monitor_parse(optarg, "control", false);
3250 default_monitor = 0;
3251 break;
3252 case QEMU_OPTION_qmp_pretty:
3253 monitor_parse(optarg, "control", true);
3254 default_monitor = 0;
3255 break;
3256 case QEMU_OPTION_mon:
3257 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3258 true);
3259 if (!opts) {
3260 exit(1);
3261 }
3262 default_monitor = 0;
3263 break;
3264 case QEMU_OPTION_chardev:
3265 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3266 optarg, true);
3267 if (!opts) {
3268 exit(1);
3269 }
3270 break;
3271 case QEMU_OPTION_fsdev:
3272 olist = qemu_find_opts("fsdev");
3273 if (!olist) {
3274 error_report("fsdev support is disabled");
3275 exit(1);
3276 }
3277 opts = qemu_opts_parse_noisily(olist, optarg, true);
3278 if (!opts) {
3279 exit(1);
3280 }
3281 break;
3282 case QEMU_OPTION_virtfs: {
3283 QemuOpts *fsdev;
3284 QemuOpts *device;
3285 const char *writeout, *sock_fd, *socket, *path, *security_model,
3286 *multidevs;
3287
3288 olist = qemu_find_opts("virtfs");
3289 if (!olist) {
3290 error_report("virtfs support is disabled");
3291 exit(1);
3292 }
3293 opts = qemu_opts_parse_noisily(olist, optarg, true);
3294 if (!opts) {
3295 exit(1);
3296 }
3297
3298 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3299 qemu_opt_get(opts, "mount_tag") == NULL) {
3300 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3301 exit(1);
3302 }
3303 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3304 qemu_opts_id(opts) ?:
3305 qemu_opt_get(opts, "mount_tag"),
3306 1, NULL);
3307 if (!fsdev) {
3308 error_report("duplicate or invalid fsdev id: %s",
3309 qemu_opt_get(opts, "mount_tag"));
3310 exit(1);
3311 }
3312
3313 writeout = qemu_opt_get(opts, "writeout");
3314 if (writeout) {
3315 #ifdef CONFIG_SYNC_FILE_RANGE
3316 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3317 #else
3318 error_report("writeout=immediate not supported "
3319 "on this platform");
3320 exit(1);
3321 #endif
3322 }
3323 qemu_opt_set(fsdev, "fsdriver",
3324 qemu_opt_get(opts, "fsdriver"), &error_abort);
3325 path = qemu_opt_get(opts, "path");
3326 if (path) {
3327 qemu_opt_set(fsdev, "path", path, &error_abort);
3328 }
3329 security_model = qemu_opt_get(opts, "security_model");
3330 if (security_model) {
3331 qemu_opt_set(fsdev, "security_model", security_model,
3332 &error_abort);
3333 }
3334 socket = qemu_opt_get(opts, "socket");
3335 if (socket) {
3336 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3337 }
3338 sock_fd = qemu_opt_get(opts, "sock_fd");
3339 if (sock_fd) {
3340 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3341 }
3342
3343 qemu_opt_set_bool(fsdev, "readonly",
3344 qemu_opt_get_bool(opts, "readonly", 0),
3345 &error_abort);
3346 multidevs = qemu_opt_get(opts, "multidevs");
3347 if (multidevs) {
3348 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3349 }
3350 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3351 &error_abort);
3352 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3353 qemu_opt_set(device, "fsdev",
3354 qemu_opts_id(fsdev), &error_abort);
3355 qemu_opt_set(device, "mount_tag",
3356 qemu_opt_get(opts, "mount_tag"), &error_abort);
3357 break;
3358 }
3359 case QEMU_OPTION_serial:
3360 add_device_config(DEV_SERIAL, optarg);
3361 default_serial = 0;
3362 if (strncmp(optarg, "mon:", 4) == 0) {
3363 default_monitor = 0;
3364 }
3365 break;
3366 case QEMU_OPTION_watchdog:
3367 if (watchdog) {
3368 error_report("only one watchdog option may be given");
3369 return 1;
3370 }
3371 watchdog = optarg;
3372 break;
3373 case QEMU_OPTION_watchdog_action:
3374 if (select_watchdog_action(optarg) == -1) {
3375 error_report("unknown -watchdog-action parameter");
3376 exit(1);
3377 }
3378 break;
3379 case QEMU_OPTION_parallel:
3380 add_device_config(DEV_PARALLEL, optarg);
3381 default_parallel = 0;
3382 if (strncmp(optarg, "mon:", 4) == 0) {
3383 default_monitor = 0;
3384 }
3385 break;
3386 case QEMU_OPTION_debugcon:
3387 add_device_config(DEV_DEBUGCON, optarg);
3388 break;
3389 case QEMU_OPTION_loadvm:
3390 loadvm = optarg;
3391 break;
3392 case QEMU_OPTION_full_screen:
3393 dpy.has_full_screen = true;
3394 dpy.full_screen = true;
3395 break;
3396 case QEMU_OPTION_alt_grab:
3397 alt_grab = 1;
3398 break;
3399 case QEMU_OPTION_ctrl_grab:
3400 ctrl_grab = 1;
3401 break;
3402 case QEMU_OPTION_no_quit:
3403 dpy.has_window_close = true;
3404 dpy.window_close = false;
3405 break;
3406 case QEMU_OPTION_sdl:
3407 #ifdef CONFIG_SDL
3408 dpy.type = DISPLAY_TYPE_SDL;
3409 break;
3410 #else
3411 error_report("SDL support is disabled");
3412 exit(1);
3413 #endif
3414 case QEMU_OPTION_pidfile:
3415 pid_file = optarg;
3416 break;
3417 case QEMU_OPTION_win2k_hack:
3418 win2k_install_hack = 1;
3419 break;
3420 case QEMU_OPTION_acpitable:
3421 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3422 optarg, true);
3423 if (!opts) {
3424 exit(1);
3425 }
3426 acpi_table_add(opts, &error_fatal);
3427 break;
3428 case QEMU_OPTION_smbios:
3429 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3430 optarg, false);
3431 if (!opts) {
3432 exit(1);
3433 }
3434 smbios_entry_add(opts, &error_fatal);
3435 break;
3436 case QEMU_OPTION_fwcfg:
3437 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3438 optarg, true);
3439 if (opts == NULL) {
3440 exit(1);
3441 }
3442 break;
3443 case QEMU_OPTION_preconfig:
3444 preconfig_exit_requested = false;
3445 break;
3446 case QEMU_OPTION_enable_kvm:
3447 olist = qemu_find_opts("machine");
3448 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3449 break;
3450 case QEMU_OPTION_M:
3451 case QEMU_OPTION_machine:
3452 olist = qemu_find_opts("machine");
3453 opts = qemu_opts_parse_noisily(olist, optarg, true);
3454 if (!opts) {
3455 exit(1);
3456 }
3457 break;
3458 case QEMU_OPTION_no_kvm:
3459 olist = qemu_find_opts("machine");
3460 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3461 break;
3462 case QEMU_OPTION_accel:
3463 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3464 optarg, true);
3465 optarg = qemu_opt_get(accel_opts, "accel");
3466 if (!optarg || is_help_option(optarg)) {
3467 printf("Accelerators supported in QEMU binary:\n");
3468 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3469 false);
3470 for (el = accel_list; el; el = el->next) {
3471 gchar *typename = g_strdup(object_class_get_name(
3472 OBJECT_CLASS(el->data)));
3473 /* omit qtest which is used for tests only */
3474 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3475 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3476 gchar **optname = g_strsplit(typename,
3477 ACCEL_CLASS_SUFFIX, 0);
3478 printf("%s\n", optname[0]);
3479 g_free(optname);
3480 }
3481 g_free(typename);
3482 }
3483 g_slist_free(accel_list);
3484 exit(0);
3485 }
3486 if (optarg && strchr(optarg, ':')) {
3487 error_report("Don't use ':' with -accel, "
3488 "use -M accel=... for now instead");
3489 exit(1);
3490 }
3491 break;
3492 case QEMU_OPTION_usb:
3493 olist = qemu_find_opts("machine");
3494 qemu_opts_parse_noisily(olist, "usb=on", false);
3495 break;
3496 case QEMU_OPTION_usbdevice:
3497 error_report("'-usbdevice' is deprecated, please use "
3498 "'-device usb-...' instead");
3499 olist = qemu_find_opts("machine");
3500 qemu_opts_parse_noisily(olist, "usb=on", false);
3501 add_device_config(DEV_USB, optarg);
3502 break;
3503 case QEMU_OPTION_device:
3504 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3505 optarg, true)) {
3506 exit(1);
3507 }
3508 break;
3509 case QEMU_OPTION_smp:
3510 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3511 optarg, true)) {
3512 exit(1);
3513 }
3514 break;
3515 case QEMU_OPTION_vnc:
3516 vnc_parse(optarg, &error_fatal);
3517 break;
3518 case QEMU_OPTION_no_acpi:
3519 acpi_enabled = 0;
3520 break;
3521 case QEMU_OPTION_no_hpet:
3522 no_hpet = 1;
3523 break;
3524 case QEMU_OPTION_no_reboot:
3525 no_reboot = 1;
3526 break;
3527 case QEMU_OPTION_no_shutdown:
3528 no_shutdown = 1;
3529 break;
3530 case QEMU_OPTION_show_cursor:
3531 cursor_hide = 0;
3532 break;
3533 case QEMU_OPTION_uuid:
3534 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3535 error_report("failed to parse UUID string: wrong format");
3536 exit(1);
3537 }
3538 qemu_uuid_set = true;
3539 break;
3540 case QEMU_OPTION_option_rom:
3541 if (nb_option_roms >= MAX_OPTION_ROMS) {
3542 error_report("too many option ROMs");
3543 exit(1);
3544 }
3545 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3546 optarg, true);
3547 if (!opts) {
3548 exit(1);
3549 }
3550 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3551 option_rom[nb_option_roms].bootindex =
3552 qemu_opt_get_number(opts, "bootindex", -1);
3553 if (!option_rom[nb_option_roms].name) {
3554 error_report("Option ROM file is not specified");
3555 exit(1);
3556 }
3557 nb_option_roms++;
3558 break;
3559 case QEMU_OPTION_semihosting:
3560 qemu_semihosting_enable();
3561 break;
3562 case QEMU_OPTION_semihosting_config:
3563 if (qemu_semihosting_config_options(optarg) != 0) {
3564 exit(1);
3565 }
3566 break;
3567 case QEMU_OPTION_name:
3568 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3569 optarg, true);
3570 if (!opts) {
3571 exit(1);
3572 }
3573 break;
3574 case QEMU_OPTION_prom_env:
3575 if (nb_prom_envs >= MAX_PROM_ENVS) {
3576 error_report("too many prom variables");
3577 exit(1);
3578 }
3579 prom_envs[nb_prom_envs] = optarg;
3580 nb_prom_envs++;
3581 break;
3582 case QEMU_OPTION_old_param:
3583 old_param = 1;
3584 break;
3585 case QEMU_OPTION_rtc:
3586 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3587 false);
3588 if (!opts) {
3589 exit(1);
3590 }
3591 break;
3592 case QEMU_OPTION_tb_size:
3593 #ifndef CONFIG_TCG
3594 error_report("TCG is disabled");
3595 exit(1);
3596 #endif
3597 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3598 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3599 break;
3600 case QEMU_OPTION_icount:
3601 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3602 optarg, true);
3603 if (!icount_opts) {
3604 exit(1);
3605 }
3606 break;
3607 case QEMU_OPTION_incoming:
3608 if (!incoming) {
3609 runstate_set(RUN_STATE_INMIGRATE);
3610 }
3611 incoming = optarg;
3612 break;
3613 case QEMU_OPTION_only_migratable:
3614 only_migratable = 1;
3615 break;
3616 case QEMU_OPTION_nodefaults:
3617 has_defaults = 0;
3618 break;
3619 case QEMU_OPTION_xen_domid:
3620 if (!(xen_available())) {
3621 error_report("Option not supported for this target");
3622 exit(1);
3623 }
3624 xen_domid = atoi(optarg);
3625 break;
3626 case QEMU_OPTION_xen_attach:
3627 if (!(xen_available())) {
3628 error_report("Option not supported for this target");
3629 exit(1);
3630 }
3631 xen_mode = XEN_ATTACH;
3632 break;
3633 case QEMU_OPTION_xen_domid_restrict:
3634 if (!(xen_available())) {
3635 error_report("Option not supported for this target");
3636 exit(1);
3637 }
3638 xen_domid_restrict = true;
3639 break;
3640 case QEMU_OPTION_trace:
3641 g_free(trace_file);
3642 trace_file = trace_opt_parse(optarg);
3643 break;
3644 case QEMU_OPTION_plugin:
3645 qemu_plugin_opt_parse(optarg, &plugin_list);
3646 break;
3647 case QEMU_OPTION_readconfig:
3648 {
3649 int ret = qemu_read_config_file(optarg);
3650 if (ret < 0) {
3651 error_report("read config %s: %s", optarg,
3652 strerror(-ret));
3653 exit(1);
3654 }
3655 break;
3656 }
3657 case QEMU_OPTION_spice:
3658 olist = qemu_find_opts("spice");
3659 if (!olist) {
3660 error_report("spice support is disabled");
3661 exit(1);
3662 }
3663 opts = qemu_opts_parse_noisily(olist, optarg, false);
3664 if (!opts) {
3665 exit(1);
3666 }
3667 display_remote++;
3668 break;
3669 case QEMU_OPTION_writeconfig:
3670 {
3671 FILE *fp;
3672 if (strcmp(optarg, "-") == 0) {
3673 fp = stdout;
3674 } else {
3675 fp = fopen(optarg, "w");
3676 if (fp == NULL) {
3677 error_report("open %s: %s", optarg,
3678 strerror(errno));
3679 exit(1);
3680 }
3681 }
3682 qemu_config_write(fp);
3683 if (fp != stdout) {
3684 fclose(fp);
3685 }
3686 break;
3687 }
3688 case QEMU_OPTION_qtest:
3689 qtest_chrdev = optarg;
3690 break;
3691 case QEMU_OPTION_qtest_log:
3692 qtest_log = optarg;
3693 break;
3694 case QEMU_OPTION_sandbox:
3695 olist = qemu_find_opts("sandbox");
3696 if (!olist) {
3697 #ifndef CONFIG_SECCOMP
3698 error_report("-sandbox support is not enabled "
3699 "in this QEMU binary");
3700 #endif
3701 exit(1);
3702 }
3703
3704 opts = qemu_opts_parse_noisily(olist, optarg, true);
3705 if (!opts) {
3706 exit(1);
3707 }
3708 break;
3709 case QEMU_OPTION_add_fd:
3710 #ifndef _WIN32
3711 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3712 optarg, false);
3713 if (!opts) {
3714 exit(1);
3715 }
3716 #else
3717 error_report("File descriptor passing is disabled on this "
3718 "platform");
3719 exit(1);
3720 #endif
3721 break;
3722 case QEMU_OPTION_object:
3723 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3724 optarg, true);
3725 if (!opts) {
3726 exit(1);
3727 }
3728 break;
3729 case QEMU_OPTION_realtime:
3730 warn_report("'-realtime mlock=...' is deprecated, please use "
3731 "'-overcommit mem-lock=...' instead");
3732 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3733 optarg, false);
3734 if (!opts) {
3735 exit(1);
3736 }
3737 /* Don't override the -overcommit option if set */
3738 enable_mlock = enable_mlock ||
3739 qemu_opt_get_bool(opts, "mlock", true);
3740 break;
3741 case QEMU_OPTION_overcommit:
3742 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3743 optarg, false);
3744 if (!opts) {
3745 exit(1);
3746 }
3747 /* Don't override the -realtime option if set */
3748 enable_mlock = enable_mlock ||
3749 qemu_opt_get_bool(opts, "mem-lock", false);
3750 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3751 break;
3752 case QEMU_OPTION_msg:
3753 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3754 false);
3755 if (!opts) {
3756 exit(1);
3757 }
3758 configure_msg(opts);
3759 break;
3760 case QEMU_OPTION_dump_vmstate:
3761 if (vmstate_dump_file) {
3762 error_report("only one '-dump-vmstate' "
3763 "option may be given");
3764 exit(1);
3765 }
3766 vmstate_dump_file = fopen(optarg, "w");
3767 if (vmstate_dump_file == NULL) {
3768 error_report("open %s: %s", optarg, strerror(errno));
3769 exit(1);
3770 }
3771 break;
3772 case QEMU_OPTION_enable_sync_profile:
3773 qsp_enable();
3774 break;
3775 case QEMU_OPTION_nouserconfig:
3776 /* Nothing to be parsed here. Especially, do not error out below. */
3777 break;
3778 default:
3779 if (os_parse_cmd_args(popt->index, optarg)) {
3780 error_report("Option not supported in this build");
3781 exit(1);
3782 }
3783 }
3784 }
3785 }
3786 /*
3787 * Clear error location left behind by the loop.
3788 * Best done right after the loop. Do not insert code here!
3789 */
3790 loc_set_none();
3791
3792 user_register_global_props();
3793
3794 replay_configure(icount_opts);
3795
3796 if (incoming && !preconfig_exit_requested) {
3797 error_report("'preconfig' and 'incoming' options are "
3798 "mutually exclusive");
3799 exit(EXIT_FAILURE);
3800 }
3801
3802 configure_rtc(qemu_find_opts_singleton("rtc"));
3803
3804 machine_class = select_machine();
3805 object_set_machine_compat_props(machine_class->compat_props);
3806
3807 set_memory_options(&ram_slots, &maxram_size, machine_class);
3808
3809 os_daemonize();
3810 rcu_disable_atfork();
3811
3812 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3813 error_reportf_err(err, "cannot create PID file: ");
3814 exit(1);
3815 }
3816
3817 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3818 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3819
3820 if (qemu_init_main_loop(&main_loop_err)) {
3821 error_report_err(main_loop_err);
3822 exit(1);
3823 }
3824
3825 #ifdef CONFIG_SECCOMP
3826 olist = qemu_find_opts_err("sandbox", NULL);
3827 if (olist) {
3828 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3829 }
3830 #endif
3831
3832 qemu_opts_foreach(qemu_find_opts("name"),
3833 parse_name, NULL, &error_fatal);
3834
3835 #ifndef _WIN32
3836 qemu_opts_foreach(qemu_find_opts("add-fd"),
3837 parse_add_fd, NULL, &error_fatal);
3838
3839 qemu_opts_foreach(qemu_find_opts("add-fd"),
3840 cleanup_add_fd, NULL, &error_fatal);
3841 #endif
3842
3843 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3844 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3845 exit(0);
3846 }
3847 object_property_add_child(object_get_root(), "machine",
3848 OBJECT(current_machine), &error_abort);
3849 object_property_add_child(container_get(OBJECT(current_machine),
3850 "/unattached"),
3851 "sysbus", OBJECT(sysbus_get_default()),
3852 NULL);
3853
3854 if (machine_class->minimum_page_bits) {
3855 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3856 /* This would be a board error: specifying a minimum smaller than
3857 * a target's compile-time fixed setting.
3858 */
3859 g_assert_not_reached();
3860 }
3861 }
3862
3863 cpu_exec_init_all();
3864
3865 if (machine_class->hw_version) {
3866 qemu_set_hw_version(machine_class->hw_version);
3867 }
3868
3869 if (cpu_option && is_help_option(cpu_option)) {
3870 list_cpus(cpu_option);
3871 exit(0);
3872 }
3873
3874 if (!trace_init_backends()) {
3875 exit(1);
3876 }
3877 trace_init_file(trace_file);
3878
3879 /* Open the logfile at this point and set the log mask if necessary.
3880 */
3881 if (log_file) {
3882 qemu_set_log_filename(log_file, &error_fatal);
3883 }
3884
3885 if (log_mask) {
3886 int mask;
3887 mask = qemu_str_to_log_mask(log_mask);
3888 if (!mask) {
3889 qemu_print_log_usage(stdout);
3890 exit(1);
3891 }
3892 qemu_set_log(mask);
3893 } else {
3894 qemu_set_log(0);
3895 }
3896
3897 /* add configured firmware directories */
3898 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3899 for (i = 0; dirs[i] != NULL; i++) {
3900 qemu_add_data_dir(dirs[i]);
3901 }
3902 g_strfreev(dirs);
3903
3904 /* try to find datadir relative to the executable path */
3905 dir = os_find_datadir();
3906 qemu_add_data_dir(dir);
3907 g_free(dir);
3908
3909 /* add the datadir specified when building */
3910 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3911
3912 /* -L help lists the data directories and exits. */
3913 if (list_data_dirs) {
3914 for (i = 0; i < data_dir_idx; i++) {
3915 printf("%s\n", data_dir[i]);
3916 }
3917 exit(0);
3918 }
3919
3920 /* machine_class: default to UP */
3921 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3922 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3923 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3924
3925 /* default to machine_class->default_cpus */
3926 current_machine->smp.cpus = machine_class->default_cpus;
3927 current_machine->smp.max_cpus = machine_class->default_cpus;
3928 current_machine->smp.cores = 1;
3929 current_machine->smp.threads = 1;
3930
3931 machine_class->smp_parse(current_machine,
3932 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3933
3934 /* sanity-check smp_cpus and max_cpus against machine_class */
3935 if (current_machine->smp.cpus < machine_class->min_cpus) {
3936 error_report("Invalid SMP CPUs %d. The min CPUs "
3937 "supported by machine '%s' is %d",
3938 current_machine->smp.cpus,
3939 machine_class->name, machine_class->min_cpus);
3940 exit(1);
3941 }
3942 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3943 error_report("Invalid SMP CPUs %d. The max CPUs "
3944 "supported by machine '%s' is %d",
3945 current_machine->smp.max_cpus,
3946 machine_class->name, machine_class->max_cpus);
3947 exit(1);
3948 }
3949
3950 /*
3951 * Get the default machine options from the machine if it is not already
3952 * specified either by the configuration file or by the command line.
3953 */
3954 if (machine_class->default_machine_opts) {
3955 qemu_opts_set_defaults(qemu_find_opts("machine"),
3956 machine_class->default_machine_opts, 0);
3957 }
3958
3959 /* process plugin before CPUs are created, but once -smp has been parsed */
3960 if (qemu_plugin_load_list(&plugin_list)) {
3961 exit(1);
3962 }
3963
3964 qemu_opts_foreach(qemu_find_opts("device"),
3965 default_driver_check, NULL, NULL);
3966 qemu_opts_foreach(qemu_find_opts("global"),
3967 default_driver_check, NULL, NULL);
3968
3969 if (!vga_model && !default_vga) {
3970 vga_interface_type = VGA_DEVICE;
3971 }
3972 if (!has_defaults || machine_class->no_serial) {
3973 default_serial = 0;
3974 }
3975 if (!has_defaults || machine_class->no_parallel) {
3976 default_parallel = 0;
3977 }
3978 if (!has_defaults || machine_class->no_floppy) {
3979 default_floppy = 0;
3980 }
3981 if (!has_defaults || machine_class->no_cdrom) {
3982 default_cdrom = 0;
3983 }
3984 if (!has_defaults || machine_class->no_sdcard) {
3985 default_sdcard = 0;
3986 }
3987 if (!has_defaults) {
3988 default_monitor = 0;
3989 default_net = 0;
3990 default_vga = 0;
3991 }
3992
3993 if (is_daemonized()) {
3994 if (!preconfig_exit_requested) {
3995 error_report("'preconfig' and 'daemonize' options are "
3996 "mutually exclusive");
3997 exit(EXIT_FAILURE);
3998 }
3999
4000 /* According to documentation and historically, -nographic redirects
4001 * serial port, parallel port and monitor to stdio, which does not work
4002 * with -daemonize. We can redirect these to null instead, but since
4003 * -nographic is legacy, let's just error out.
4004 * We disallow -nographic only if all other ports are not redirected
4005 * explicitly, to not break existing legacy setups which uses
4006 * -nographic _and_ redirects all ports explicitly - this is valid
4007 * usage, -nographic is just a no-op in this case.
4008 */
4009 if (nographic
4010 && (default_parallel || default_serial || default_monitor)) {
4011 error_report("-nographic cannot be used with -daemonize");
4012 exit(1);
4013 }
4014 #ifdef CONFIG_CURSES
4015 if (dpy.type == DISPLAY_TYPE_CURSES) {
4016 error_report("curses display cannot be used with -daemonize");
4017 exit(1);
4018 }
4019 #endif
4020 }
4021
4022 if (nographic) {
4023 if (default_parallel)
4024 add_device_config(DEV_PARALLEL, "null");
4025 if (default_serial && default_monitor) {
4026 add_device_config(DEV_SERIAL, "mon:stdio");
4027 } else {
4028 if (default_serial)
4029 add_device_config(DEV_SERIAL, "stdio");
4030 if (default_monitor)
4031 monitor_parse("stdio", "readline", false);
4032 }
4033 } else {
4034 if (default_serial)
4035 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4036 if (default_parallel)
4037 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4038 if (default_monitor)
4039 monitor_parse("vc:80Cx24C", "readline", false);
4040 }
4041
4042 #if defined(CONFIG_VNC)
4043 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4044 display_remote++;
4045 }
4046 #endif
4047 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4048 if (!qemu_display_find_default(&dpy)) {
4049 dpy.type = DISPLAY_TYPE_NONE;
4050 #if defined(CONFIG_VNC)
4051 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4052 #endif
4053 }
4054 }
4055 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4056 dpy.type = DISPLAY_TYPE_NONE;
4057 }
4058
4059 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4060 error_report("-alt-grab and -ctrl-grab are only valid "
4061 "for SDL, ignoring option");
4062 }
4063 if (dpy.has_window_close &&
4064 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4065 error_report("-no-quit is only valid for GTK and SDL, "
4066 "ignoring option");
4067 }
4068
4069 qemu_display_early_init(&dpy);
4070 qemu_console_early_init();
4071
4072 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4073 #if defined(CONFIG_OPENGL)
4074 error_report("OpenGL is not supported by the display");
4075 #else
4076 error_report("OpenGL support is disabled");
4077 #endif
4078 exit(1);
4079 }
4080
4081 page_size_init();
4082 socket_init();
4083
4084 qemu_opts_foreach(qemu_find_opts("object"),
4085 user_creatable_add_opts_foreach,
4086 object_create_initial, &error_fatal);
4087
4088 qemu_opts_foreach(qemu_find_opts("chardev"),
4089 chardev_init_func, NULL, &error_fatal);
4090 /* now chardevs have been created we may have semihosting to connect */
4091 qemu_semihosting_connect_chardevs();
4092
4093 #ifdef CONFIG_VIRTFS
4094 qemu_opts_foreach(qemu_find_opts("fsdev"),
4095 fsdev_init_func, NULL, &error_fatal);
4096 #endif
4097
4098 if (qemu_opts_foreach(qemu_find_opts("device"),
4099 device_help_func, NULL, NULL)) {
4100 exit(0);
4101 }
4102
4103 /*
4104 * Note: we need to create block backends before
4105 * machine_set_property(), so machine properties can refer to
4106 * them.
4107 */
4108 configure_blockdev(&bdo_queue, machine_class, snapshot);
4109
4110 machine_opts = qemu_get_machine_opts();
4111 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4112 &error_fatal);
4113 current_machine->ram_size = ram_size;
4114 current_machine->maxram_size = maxram_size;
4115 current_machine->ram_slots = ram_slots;
4116
4117 /*
4118 * Note: uses machine properties such as kernel-irqchip, must run
4119 * after machine_set_property().
4120 */
4121 configure_accelerators(argv[0]);
4122
4123 /*
4124 * Beware, QOM objects created before this point miss global and
4125 * compat properties.
4126 *
4127 * Global properties get set up by qdev_prop_register_global(),
4128 * called from user_register_global_props(), and certain option
4129 * desugaring. Also in CPU feature desugaring (buried in
4130 * parse_cpu_option()), which happens below this point, but may
4131 * only target the CPU type, which can only be created after
4132 * parse_cpu_option() returned the type.
4133 *
4134 * Machine compat properties: object_set_machine_compat_props().
4135 * Accelerator compat props: object_set_accelerator_compat_props(),
4136 * called from configure_accelerator().
4137 */
4138
4139 if (!qtest_enabled() && machine_class->deprecation_reason) {
4140 error_report("Machine type '%s' is deprecated: %s",
4141 machine_class->name, machine_class->deprecation_reason);
4142 }
4143
4144 /*
4145 * Note: creates a QOM object, must run only after global and
4146 * compat properties have been set up.
4147 */
4148 migration_object_init();
4149
4150 if (qtest_chrdev) {
4151 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4152 }
4153
4154 machine_opts = qemu_get_machine_opts();
4155 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4156 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4157 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4158 bios_name = qemu_opt_get(machine_opts, "firmware");
4159
4160 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4161 if (opts) {
4162 boot_order = qemu_opt_get(opts, "order");
4163 if (boot_order) {
4164 validate_bootdevices(boot_order, &error_fatal);
4165 }
4166
4167 boot_once = qemu_opt_get(opts, "once");
4168 if (boot_once) {
4169 validate_bootdevices(boot_once, &error_fatal);
4170 }
4171
4172 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4173 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4174 }
4175
4176 if (!boot_order) {
4177 boot_order = machine_class->default_boot_order;
4178 }
4179
4180 if (!kernel_cmdline) {
4181 kernel_cmdline = "";
4182 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4183 }
4184
4185 linux_boot = (kernel_filename != NULL);
4186
4187 if (!linux_boot && *kernel_cmdline != '\0') {
4188 error_report("-append only allowed with -kernel option");
4189 exit(1);
4190 }
4191
4192 if (!linux_boot && initrd_filename != NULL) {
4193 error_report("-initrd only allowed with -kernel option");
4194 exit(1);
4195 }
4196
4197 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4198 /* fall back to the -kernel/-append */
4199 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4200 }
4201
4202 /* spice needs the timers to be initialized by this point */
4203 qemu_spice_init();
4204
4205 cpu_ticks_init();
4206
4207 if (default_net) {
4208 QemuOptsList *net = qemu_find_opts("net");
4209 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4210 #ifdef CONFIG_SLIRP
4211 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4212 #endif
4213 }
4214
4215 if (net_init_clients(&err) < 0) {
4216 error_report_err(err);
4217 exit(1);
4218 }
4219
4220 qemu_opts_foreach(qemu_find_opts("object"),
4221 user_creatable_add_opts_foreach,
4222 object_create_delayed, &error_fatal);
4223
4224 tpm_init();
4225
4226 if (!xen_enabled()) {
4227 /* On 32-bit hosts, QEMU is limited by virtual address space */
4228 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4229 error_report("at most 2047 MB RAM can be simulated");
4230 exit(1);
4231 }
4232 }
4233
4234 blk_mig_init();
4235 ram_mig_init();
4236 dirty_bitmap_mig_init();
4237
4238 qemu_opts_foreach(qemu_find_opts("mon"),
4239 mon_init_func, NULL, &error_fatal);
4240
4241 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4242 exit(1);
4243 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4244 exit(1);
4245 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4246 exit(1);
4247
4248 /* If no default VGA is requested, the default is "none". */
4249 if (default_vga) {
4250 vga_model = get_default_vga_model(machine_class);
4251 }
4252 if (vga_model) {
4253 select_vgahw(machine_class, vga_model);
4254 }
4255
4256 if (watchdog) {
4257 i = select_watchdog(watchdog);
4258 if (i > 0)
4259 exit (i == 1 ? 1 : 0);
4260 }
4261
4262 /* This checkpoint is required by replay to separate prior clock
4263 reading from the other reads, because timer polling functions query
4264 clock values from the log. */
4265 replay_checkpoint(CHECKPOINT_INIT);
4266 qdev_machine_init();
4267
4268 current_machine->boot_order = boot_order;
4269
4270 /* parse features once if machine provides default cpu_type */
4271 current_machine->cpu_type = machine_class->default_cpu_type;
4272 if (cpu_option) {
4273 current_machine->cpu_type = parse_cpu_option(cpu_option);
4274 }
4275 parse_numa_opts(current_machine);
4276
4277 /* do monitor/qmp handling at preconfig state if requested */
4278 main_loop();
4279
4280 audio_init_audiodevs();
4281
4282 /* from here on runstate is RUN_STATE_PRELAUNCH */
4283 machine_run_board_init(current_machine);
4284
4285 realtime_init();
4286
4287 soundhw_init();
4288
4289 if (hax_enabled()) {
4290 hax_sync_vcpus();
4291 }
4292
4293 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4294 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4295
4296 /* init USB devices */
4297 if (machine_usb(current_machine)) {
4298 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4299 exit(1);
4300 }
4301
4302 /* init generic devices */
4303 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4304 qemu_opts_foreach(qemu_find_opts("device"),
4305 device_init_func, NULL, &error_fatal);
4306
4307 cpu_synchronize_all_post_init();
4308
4309 rom_reset_order_override();
4310
4311 /* Did we create any drives that we failed to create a device for? */
4312 drive_check_orphaned();
4313
4314 /* Don't warn about the default network setup that you get if
4315 * no command line -net or -netdev options are specified. There
4316 * are two cases that we would otherwise complain about:
4317 * (1) board doesn't support a NIC but the implicit "-net nic"
4318 * requested one
4319 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4320 * sets up a nic that isn't connected to anything.
4321 */
4322 if (!default_net && (!qtest_enabled() || has_defaults)) {
4323 net_check_clients();
4324 }
4325
4326 if (boot_once) {
4327 qemu_boot_set(boot_once, &error_fatal);
4328 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4329 }
4330
4331 /* init local displays */
4332 ds = init_displaystate();
4333 qemu_display_init(ds, &dpy);
4334
4335 /* must be after terminal init, SDL library changes signal handlers */
4336 os_setup_signal_handling();
4337
4338 /* init remote displays */
4339 #ifdef CONFIG_VNC
4340 qemu_opts_foreach(qemu_find_opts("vnc"),
4341 vnc_init_func, NULL, &error_fatal);
4342 #endif
4343
4344 if (using_spice) {
4345 qemu_spice_display_init();
4346 }
4347
4348 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4349 exit(1);
4350 }
4351
4352 qdev_machine_creation_done();
4353
4354 /* TODO: once all bus devices are qdevified, this should be done
4355 * when bus is created by qdev.c */
4356 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4357 qemu_run_machine_init_done_notifiers();
4358
4359 if (rom_check_and_register_reset() != 0) {
4360 error_report("rom check and register reset failed");
4361 exit(1);
4362 }
4363
4364 replay_start();
4365
4366 /* This checkpoint is required by replay to separate prior clock
4367 reading from the other reads, because timer polling functions query
4368 clock values from the log. */
4369 replay_checkpoint(CHECKPOINT_RESET);
4370 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4371 register_global_state();
4372 if (loadvm) {
4373 Error *local_err = NULL;
4374 if (load_snapshot(loadvm, &local_err) < 0) {
4375 error_report_err(local_err);
4376 autostart = 0;
4377 exit(1);
4378 }
4379 }
4380 if (replay_mode != REPLAY_MODE_NONE) {
4381 replay_vmstate_init();
4382 }
4383
4384 qdev_prop_check_globals();
4385 if (vmstate_dump_file) {
4386 /* dump and exit */
4387 dump_vmstate_json_to_file(vmstate_dump_file);
4388 return 0;
4389 }
4390
4391 if (incoming) {
4392 Error *local_err = NULL;
4393 qemu_start_incoming_migration(incoming, &local_err);
4394 if (local_err) {
4395 error_reportf_err(local_err, "-incoming %s: ", incoming);
4396 exit(1);
4397 }
4398 } else if (autostart) {
4399 vm_start();
4400 }
4401
4402 accel_setup_post(current_machine);
4403 os_setup_post();
4404
4405 main_loop();
4406
4407 gdbserver_cleanup();
4408
4409 /*
4410 * cleaning up the migration object cancels any existing migration
4411 * try to do this early so that it also stops using devices.
4412 */
4413 migration_shutdown();
4414
4415 /*
4416 * We must cancel all block jobs while the block layer is drained,
4417 * or cancelling will be affected by throttling and thus may block
4418 * for an extended period of time.
4419 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4420 * it in the drained section.
4421 * We do not need to end this section, because we do not want any
4422 * requests happening from here on anyway.
4423 */
4424 bdrv_drain_all_begin();
4425
4426 /* No more vcpu or device emulation activity beyond this point */
4427 vm_shutdown();
4428 replay_finish();
4429
4430 job_cancel_sync_all();
4431 bdrv_close_all();
4432
4433 res_free();
4434
4435 /* vhost-user must be cleaned up before chardevs. */
4436 tpm_cleanup();
4437 net_cleanup();
4438 audio_cleanup();
4439 monitor_cleanup();
4440 qemu_chr_cleanup();
4441 user_creatable_cleanup();
4442 /* TODO: unref root container, check all devices are ok */
4443
4444 return 0;
4445 }
AR7 emulation for QEMU