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qtest: rename qtest_qmp_receive to qtest_qmp_receive_dict
[qemu/ar7.git] / softmmu / vl.c
blob5a11a62f78a9a4d1ae7c62edd5f7f05ec64b587f
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/boards.h"
29 #include "hw/qdev-properties.h"
30 #include "qapi/error.h"
31 #include "qemu-version.h"
32 #include "qemu/cutils.h"
33 #include "qemu/help_option.h"
34 #include "qemu/uuid.h"
35 #include "sysemu/reset.h"
36 #include "sysemu/runstate.h"
37 #include "sysemu/seccomp.h"
38 #include "sysemu/tcg.h"
39 #include "sysemu/xen.h"
40
41 #include "qemu/error-report.h"
42 #include "qemu/sockets.h"
43 #include "sysemu/accel.h"
44 #include "hw/usb.h"
45 #include "hw/isa/isa.h"
46 #include "hw/scsi/scsi.h"
47 #include "hw/display/vga.h"
48 #include "sysemu/watchdog.h"
49 #include "hw/firmware/smbios.h"
50 #include "hw/acpi/acpi.h"
51 #include "hw/xen/xen.h"
52 #include "hw/loader.h"
53 #include "monitor/qdev.h"
54 #include "net/net.h"
55 #include "net/slirp.h"
56 #include "monitor/monitor.h"
57 #include "ui/console.h"
58 #include "ui/input.h"
59 #include "sysemu/sysemu.h"
60 #include "sysemu/numa.h"
61 #include "sysemu/hostmem.h"
62 #include "exec/gdbstub.h"
63 #include "qemu/timer.h"
64 #include "chardev/char.h"
65 #include "qemu/bitmap.h"
66 #include "qemu/log.h"
67 #include "sysemu/blockdev.h"
68 #include "hw/block/block.h"
69 #include "migration/misc.h"
70 #include "migration/snapshot.h"
71 #include "migration/global_state.h"
72 #include "sysemu/tpm.h"
73 #include "sysemu/dma.h"
74 #include "hw/audio/soundhw.h"
75 #include "audio/audio.h"
76 #include "sysemu/cpus.h"
77 #include "sysemu/cpu-timers.h"
78 #include "migration/colo.h"
79 #include "migration/postcopy-ram.h"
80 #include "sysemu/kvm.h"
81 #include "sysemu/hax.h"
82 #include "qapi/qobject-input-visitor.h"
83 #include "qemu/option.h"
84 #include "qemu/config-file.h"
85 #include "qemu-options.h"
86 #include "qemu/main-loop.h"
87 #ifdef CONFIG_VIRTFS
88 #include "fsdev/qemu-fsdev.h"
89 #endif
90 #include "sysemu/qtest.h"
91
92 #include "disas/disas.h"
93
94 #include "trace.h"
95 #include "trace/control.h"
96 #include "qemu/plugin.h"
97 #include "qemu/queue.h"
98 #include "sysemu/arch_init.h"
99
100 #include "ui/qemu-spice.h"
101 #include "qapi/string-input-visitor.h"
102 #include "qapi/opts-visitor.h"
103 #include "qapi/clone-visitor.h"
104 #include "qom/object_interfaces.h"
105 #include "hw/semihosting/semihost.h"
106 #include "crypto/init.h"
107 #include "sysemu/replay.h"
108 #include "qapi/qapi-events-run-state.h"
109 #include "qapi/qapi-visit-block-core.h"
110 #include "qapi/qapi-visit-ui.h"
111 #include "qapi/qapi-commands-block-core.h"
112 #include "qapi/qapi-commands-run-state.h"
113 #include "qapi/qapi-commands-ui.h"
114 #include "qapi/qmp/qerror.h"
115 #include "sysemu/iothread.h"
116 #include "qemu/guest-random.h"
117
118 #define MAX_VIRTIO_CONSOLES 1
119
120 static const char *data_dir[16];
121 static int data_dir_idx;
122 const char *bios_name = NULL;
123 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
124 int display_opengl;
125 const char* keyboard_layout = NULL;
126 ram_addr_t ram_size;
127 bool enable_mlock = false;
128 bool enable_cpu_pm = false;
129 int nb_nics;
130 NICInfo nd_table[MAX_NICS];
131 int autostart;
132 static enum {
133 RTC_BASE_UTC,
134 RTC_BASE_LOCALTIME,
135 RTC_BASE_DATETIME,
136 } rtc_base_type = RTC_BASE_UTC;
137 static time_t rtc_ref_start_datetime;
138 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
139 static int rtc_host_datetime_offset = -1; /* valid & used only with
140 RTC_BASE_DATETIME */
141 QEMUClockType rtc_clock;
142 int vga_interface_type = VGA_NONE;
143 static DisplayOptions dpy;
144 static int num_serial_hds;
145 static Chardev **serial_hds;
146 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
147 int win2k_install_hack = 0;
148 int singlestep = 0;
149 int no_hpet = 0;
150 int fd_bootchk = 1;
151 static int no_reboot;
152 int no_shutdown = 0;
153 int graphic_rotate = 0;
154 const char *watchdog;
155 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
156 int nb_option_roms;
157 int old_param = 0;
158 const char *qemu_name;
159 int alt_grab = 0;
160 int ctrl_grab = 0;
161 unsigned int nb_prom_envs = 0;
162 const char *prom_envs[MAX_PROM_ENVS];
163 int boot_menu;
164 bool boot_strict;
165 uint8_t *boot_splash_filedata;
166 int only_migratable; /* turn it off unless user states otherwise */
167 bool wakeup_suspend_enabled;
168
169 int icount_align_option;
170
171 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
172 * little-endian "wire format" described in the SMBIOS 2.6 specification.
173 */
174 QemuUUID qemu_uuid;
175 bool qemu_uuid_set;
176
177 static NotifierList exit_notifiers =
178 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
179
180 static NotifierList machine_init_done_notifiers =
181 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
182
183 uint32_t xen_domid;
184 enum xen_mode xen_mode = XEN_EMULATE;
185 bool xen_domid_restrict;
186
187 static int has_defaults = 1;
188 static int default_serial = 1;
189 static int default_parallel = 1;
190 static int default_monitor = 1;
191 static int default_floppy = 1;
192 static int default_cdrom = 1;
193 static int default_sdcard = 1;
194 static int default_vga = 1;
195 static int default_net = 1;
196
197 static struct {
198 const char *driver;
199 int *flag;
200 } default_list[] = {
201 { .driver = "isa-serial", .flag = &default_serial },
202 { .driver = "isa-parallel", .flag = &default_parallel },
203 { .driver = "isa-fdc", .flag = &default_floppy },
204 { .driver = "floppy", .flag = &default_floppy },
205 { .driver = "ide-cd", .flag = &default_cdrom },
206 { .driver = "ide-hd", .flag = &default_cdrom },
207 { .driver = "ide-drive", .flag = &default_cdrom },
208 { .driver = "scsi-cd", .flag = &default_cdrom },
209 { .driver = "scsi-hd", .flag = &default_cdrom },
210 { .driver = "VGA", .flag = &default_vga },
211 { .driver = "isa-vga", .flag = &default_vga },
212 { .driver = "cirrus-vga", .flag = &default_vga },
213 { .driver = "isa-cirrus-vga", .flag = &default_vga },
214 { .driver = "vmware-svga", .flag = &default_vga },
215 { .driver = "qxl-vga", .flag = &default_vga },
216 { .driver = "virtio-vga", .flag = &default_vga },
217 { .driver = "ati-vga", .flag = &default_vga },
218 { .driver = "vhost-user-vga", .flag = &default_vga },
219 };
220
221 static QemuOptsList qemu_rtc_opts = {
222 .name = "rtc",
223 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
224 .merge_lists = true,
225 .desc = {
226 {
227 .name = "base",
228 .type = QEMU_OPT_STRING,
229 },{
230 .name = "clock",
231 .type = QEMU_OPT_STRING,
232 },{
233 .name = "driftfix",
234 .type = QEMU_OPT_STRING,
235 },
236 { /* end of list */ }
237 },
238 };
239
240 static QemuOptsList qemu_option_rom_opts = {
241 .name = "option-rom",
242 .implied_opt_name = "romfile",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
244 .desc = {
245 {
246 .name = "bootindex",
247 .type = QEMU_OPT_NUMBER,
248 }, {
249 .name = "romfile",
250 .type = QEMU_OPT_STRING,
251 },
252 { /* end of list */ }
253 },
254 };
255
256 static QemuOptsList qemu_machine_opts = {
257 .name = "machine",
258 .implied_opt_name = "type",
259 .merge_lists = true,
260 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
261 .desc = {
262 /*
263 * no elements => accept any
264 * sanity checking will happen later
265 * when setting machine properties
266 */
267 { }
268 },
269 };
270
271 static QemuOptsList qemu_accel_opts = {
272 .name = "accel",
273 .implied_opt_name = "accel",
274 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
275 .desc = {
276 /*
277 * no elements => accept any
278 * sanity checking will happen later
279 * when setting accelerator properties
280 */
281 { }
282 },
283 };
284
285 static QemuOptsList qemu_boot_opts = {
286 .name = "boot-opts",
287 .implied_opt_name = "order",
288 .merge_lists = true,
289 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
290 .desc = {
291 {
292 .name = "order",
293 .type = QEMU_OPT_STRING,
294 }, {
295 .name = "once",
296 .type = QEMU_OPT_STRING,
297 }, {
298 .name = "menu",
299 .type = QEMU_OPT_BOOL,
300 }, {
301 .name = "splash",
302 .type = QEMU_OPT_STRING,
303 }, {
304 .name = "splash-time",
305 .type = QEMU_OPT_NUMBER,
306 }, {
307 .name = "reboot-timeout",
308 .type = QEMU_OPT_NUMBER,
309 }, {
310 .name = "strict",
311 .type = QEMU_OPT_BOOL,
312 },
313 { /*End of list */ }
314 },
315 };
316
317 static QemuOptsList qemu_add_fd_opts = {
318 .name = "add-fd",
319 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
320 .desc = {
321 {
322 .name = "fd",
323 .type = QEMU_OPT_NUMBER,
324 .help = "file descriptor of which a duplicate is added to fd set",
325 },{
326 .name = "set",
327 .type = QEMU_OPT_NUMBER,
328 .help = "ID of the fd set to add fd to",
329 },{
330 .name = "opaque",
331 .type = QEMU_OPT_STRING,
332 .help = "free-form string used to describe fd",
333 },
334 { /* end of list */ }
335 },
336 };
337
338 static QemuOptsList qemu_object_opts = {
339 .name = "object",
340 .implied_opt_name = "qom-type",
341 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
342 .desc = {
343 { }
344 },
345 };
346
347 static QemuOptsList qemu_tpmdev_opts = {
348 .name = "tpmdev",
349 .implied_opt_name = "type",
350 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
351 .desc = {
352 /* options are defined in the TPM backends */
353 { /* end of list */ }
354 },
355 };
356
357 static QemuOptsList qemu_realtime_opts = {
358 .name = "realtime",
359 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
360 .desc = {
361 {
362 .name = "mlock",
363 .type = QEMU_OPT_BOOL,
364 },
365 { /* end of list */ }
366 },
367 };
368
369 static QemuOptsList qemu_overcommit_opts = {
370 .name = "overcommit",
371 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
372 .desc = {
373 {
374 .name = "mem-lock",
375 .type = QEMU_OPT_BOOL,
376 },
377 {
378 .name = "cpu-pm",
379 .type = QEMU_OPT_BOOL,
380 },
381 { /* end of list */ }
382 },
383 };
384
385 static QemuOptsList qemu_msg_opts = {
386 .name = "msg",
387 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
388 .desc = {
389 {
390 .name = "timestamp",
391 .type = QEMU_OPT_BOOL,
392 },
393 {
394 .name = "guest-name",
395 .type = QEMU_OPT_BOOL,
396 .help = "Prepends guest name for error messages but only if "
397 "-name guest is set otherwise option is ignored\n",
398 },
399 { /* end of list */ }
400 },
401 };
402
403 static QemuOptsList qemu_name_opts = {
404 .name = "name",
405 .implied_opt_name = "guest",
406 .merge_lists = true,
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
408 .desc = {
409 {
410 .name = "guest",
411 .type = QEMU_OPT_STRING,
412 .help = "Sets the name of the guest.\n"
413 "This name will be displayed in the SDL window caption.\n"
414 "The name will also be used for the VNC server",
415 }, {
416 .name = "process",
417 .type = QEMU_OPT_STRING,
418 .help = "Sets the name of the QEMU process, as shown in top etc",
419 }, {
420 .name = "debug-threads",
421 .type = QEMU_OPT_BOOL,
422 .help = "When enabled, name the individual threads; defaults off.\n"
423 "NOTE: The thread names are for debugging and not a\n"
424 "stable API.",
425 },
426 { /* End of list */ }
427 },
428 };
429
430 static QemuOptsList qemu_mem_opts = {
431 .name = "memory",
432 .implied_opt_name = "size",
433 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
434 .merge_lists = true,
435 .desc = {
436 {
437 .name = "size",
438 .type = QEMU_OPT_SIZE,
439 },
440 {
441 .name = "slots",
442 .type = QEMU_OPT_NUMBER,
443 },
444 {
445 .name = "maxmem",
446 .type = QEMU_OPT_SIZE,
447 },
448 { /* end of list */ }
449 },
450 };
451
452 static QemuOptsList qemu_icount_opts = {
453 .name = "icount",
454 .implied_opt_name = "shift",
455 .merge_lists = true,
456 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
457 .desc = {
458 {
459 .name = "shift",
460 .type = QEMU_OPT_STRING,
461 }, {
462 .name = "align",
463 .type = QEMU_OPT_BOOL,
464 }, {
465 .name = "sleep",
466 .type = QEMU_OPT_BOOL,
467 }, {
468 .name = "rr",
469 .type = QEMU_OPT_STRING,
470 }, {
471 .name = "rrfile",
472 .type = QEMU_OPT_STRING,
473 }, {
474 .name = "rrsnapshot",
475 .type = QEMU_OPT_STRING,
476 },
477 { /* end of list */ }
478 },
479 };
480
481 static QemuOptsList qemu_fw_cfg_opts = {
482 .name = "fw_cfg",
483 .implied_opt_name = "name",
484 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
485 .desc = {
486 {
487 .name = "name",
488 .type = QEMU_OPT_STRING,
489 .help = "Sets the fw_cfg name of the blob to be inserted",
490 }, {
491 .name = "file",
492 .type = QEMU_OPT_STRING,
493 .help = "Sets the name of the file from which "
494 "the fw_cfg blob will be loaded",
495 }, {
496 .name = "string",
497 .type = QEMU_OPT_STRING,
498 .help = "Sets content of the blob to be inserted from a string",
499 }, {
500 .name = "gen_id",
501 .type = QEMU_OPT_STRING,
502 .help = "Sets id of the object generating the fw_cfg blob "
503 "to be inserted",
504 },
505 { /* end of list */ }
506 },
507 };
508
509 /**
510 * Get machine options
511 *
512 * Returns: machine options (never null).
513 */
514 QemuOpts *qemu_get_machine_opts(void)
515 {
516 return qemu_find_opts_singleton("machine");
517 }
518
519 const char *qemu_get_vm_name(void)
520 {
521 return qemu_name;
522 }
523
524 static void res_free(void)
525 {
526 g_free(boot_splash_filedata);
527 boot_splash_filedata = NULL;
528 }
529
530 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
531 {
532 const char *driver = qemu_opt_get(opts, "driver");
533 int i;
534
535 if (!driver)
536 return 0;
537 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
538 if (strcmp(default_list[i].driver, driver) != 0)
539 continue;
540 *(default_list[i].flag) = 0;
541 }
542 return 0;
543 }
544
545 /***********************************************************/
546 /* QEMU state */
547
548 static RunState current_run_state = RUN_STATE_PRECONFIG;
549
550 /* We use RUN_STATE__MAX but any invalid value will do */
551 static RunState vmstop_requested = RUN_STATE__MAX;
552 static QemuMutex vmstop_lock;
553
554 typedef struct {
555 RunState from;
556 RunState to;
557 } RunStateTransition;
558
559 static const RunStateTransition runstate_transitions_def[] = {
560 /* from -> to */
561 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
562 /* Early switch to inmigrate state to allow -incoming CLI option work
563 * as it used to. TODO: delay actual switching to inmigrate state to
564 * the point after machine is built and remove this hack.
565 */
566 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
567
568 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
569 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
570 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
571
572 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
573 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
574 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
575 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
576 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
577 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
578 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
579 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
580 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
581 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
582 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
583 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
584
585 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
586 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
587 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
588
589 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
590 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
591 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
592
593 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
594 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
595 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
596 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
597 { RUN_STATE_PAUSED, RUN_STATE_COLO},
598
599 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
600 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
601 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
602
603 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
604 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
605 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
606
607 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
608 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
609 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
610 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
611 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
612
613 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
614 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
615
616 { RUN_STATE_COLO, RUN_STATE_RUNNING },
617
618 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
619 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
620 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
621 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
622 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
624 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
625 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
626 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
627 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
628 { RUN_STATE_RUNNING, RUN_STATE_COLO},
629
630 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
631
632 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
633 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
635
636 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
637 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
638 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
639 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
640 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
641 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
642
643 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
644 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
645 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
646 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
647
648 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
649 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
650 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
651
652 { RUN_STATE__MAX, RUN_STATE__MAX },
653 };
654
655 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
656
657 bool runstate_check(RunState state)
658 {
659 return current_run_state == state;
660 }
661
662 bool runstate_store(char *str, size_t size)
663 {
664 const char *state = RunState_str(current_run_state);
665 size_t len = strlen(state) + 1;
666
667 if (len > size) {
668 return false;
669 }
670 memcpy(str, state, len);
671 return true;
672 }
673
674 static void runstate_init(void)
675 {
676 const RunStateTransition *p;
677
678 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
679 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
680 runstate_valid_transitions[p->from][p->to] = true;
681 }
682
683 qemu_mutex_init(&vmstop_lock);
684 }
685
686 /* This function will abort() on invalid state transitions */
687 void runstate_set(RunState new_state)
688 {
689 assert(new_state < RUN_STATE__MAX);
690
691 trace_runstate_set(current_run_state, RunState_str(current_run_state),
692 new_state, RunState_str(new_state));
693
694 if (current_run_state == new_state) {
695 return;
696 }
697
698 if (!runstate_valid_transitions[current_run_state][new_state]) {
699 error_report("invalid runstate transition: '%s' -> '%s'",
700 RunState_str(current_run_state),
701 RunState_str(new_state));
702 abort();
703 }
704
705 current_run_state = new_state;
706 }
707
708 int runstate_is_running(void)
709 {
710 return runstate_check(RUN_STATE_RUNNING);
711 }
712
713 bool runstate_needs_reset(void)
714 {
715 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
716 runstate_check(RUN_STATE_SHUTDOWN);
717 }
718
719 StatusInfo *qmp_query_status(Error **errp)
720 {
721 StatusInfo *info = g_malloc0(sizeof(*info));
722
723 info->running = runstate_is_running();
724 info->singlestep = singlestep;
725 info->status = current_run_state;
726
727 return info;
728 }
729
730 bool qemu_vmstop_requested(RunState *r)
731 {
732 qemu_mutex_lock(&vmstop_lock);
733 *r = vmstop_requested;
734 vmstop_requested = RUN_STATE__MAX;
735 qemu_mutex_unlock(&vmstop_lock);
736 return *r < RUN_STATE__MAX;
737 }
738
739 void qemu_system_vmstop_request_prepare(void)
740 {
741 qemu_mutex_lock(&vmstop_lock);
742 }
743
744 void qemu_system_vmstop_request(RunState state)
745 {
746 vmstop_requested = state;
747 qemu_mutex_unlock(&vmstop_lock);
748 qemu_notify_event();
749 }
750
751 /***********************************************************/
752 /* RTC reference time/date access */
753 static time_t qemu_ref_timedate(QEMUClockType clock)
754 {
755 time_t value = qemu_clock_get_ms(clock) / 1000;
756 switch (clock) {
757 case QEMU_CLOCK_REALTIME:
758 value -= rtc_realtime_clock_offset;
759 /* fall through */
760 case QEMU_CLOCK_VIRTUAL:
761 value += rtc_ref_start_datetime;
762 break;
763 case QEMU_CLOCK_HOST:
764 if (rtc_base_type == RTC_BASE_DATETIME) {
765 value -= rtc_host_datetime_offset;
766 }
767 break;
768 default:
769 assert(0);
770 }
771 return value;
772 }
773
774 void qemu_get_timedate(struct tm *tm, int offset)
775 {
776 time_t ti = qemu_ref_timedate(rtc_clock);
777
778 ti += offset;
779
780 switch (rtc_base_type) {
781 case RTC_BASE_DATETIME:
782 case RTC_BASE_UTC:
783 gmtime_r(&ti, tm);
784 break;
785 case RTC_BASE_LOCALTIME:
786 localtime_r(&ti, tm);
787 break;
788 }
789 }
790
791 int qemu_timedate_diff(struct tm *tm)
792 {
793 time_t seconds;
794
795 switch (rtc_base_type) {
796 case RTC_BASE_DATETIME:
797 case RTC_BASE_UTC:
798 seconds = mktimegm(tm);
799 break;
800 case RTC_BASE_LOCALTIME:
801 {
802 struct tm tmp = *tm;
803 tmp.tm_isdst = -1; /* use timezone to figure it out */
804 seconds = mktime(&tmp);
805 break;
806 }
807 default:
808 abort();
809 }
810
811 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
812 }
813
814 static void configure_rtc_base_datetime(const char *startdate)
815 {
816 time_t rtc_start_datetime;
817 struct tm tm;
818
819 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
820 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
821 /* OK */
822 } else if (sscanf(startdate, "%d-%d-%d",
823 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
824 tm.tm_hour = 0;
825 tm.tm_min = 0;
826 tm.tm_sec = 0;
827 } else {
828 goto date_fail;
829 }
830 tm.tm_year -= 1900;
831 tm.tm_mon--;
832 rtc_start_datetime = mktimegm(&tm);
833 if (rtc_start_datetime == -1) {
834 date_fail:
835 error_report("invalid datetime format");
836 error_printf("valid formats: "
837 "'2006-06-17T16:01:21' or '2006-06-17'\n");
838 exit(1);
839 }
840 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
841 rtc_ref_start_datetime = rtc_start_datetime;
842 }
843
844 static void configure_rtc(QemuOpts *opts)
845 {
846 const char *value;
847
848 /* Set defaults */
849 rtc_clock = QEMU_CLOCK_HOST;
850 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
851 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
852
853 value = qemu_opt_get(opts, "base");
854 if (value) {
855 if (!strcmp(value, "utc")) {
856 rtc_base_type = RTC_BASE_UTC;
857 } else if (!strcmp(value, "localtime")) {
858 Error *blocker = NULL;
859 rtc_base_type = RTC_BASE_LOCALTIME;
860 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
861 "-rtc base=localtime");
862 replay_add_blocker(blocker);
863 } else {
864 rtc_base_type = RTC_BASE_DATETIME;
865 configure_rtc_base_datetime(value);
866 }
867 }
868 value = qemu_opt_get(opts, "clock");
869 if (value) {
870 if (!strcmp(value, "host")) {
871 rtc_clock = QEMU_CLOCK_HOST;
872 } else if (!strcmp(value, "rt")) {
873 rtc_clock = QEMU_CLOCK_REALTIME;
874 } else if (!strcmp(value, "vm")) {
875 rtc_clock = QEMU_CLOCK_VIRTUAL;
876 } else {
877 error_report("invalid option value '%s'", value);
878 exit(1);
879 }
880 }
881 value = qemu_opt_get(opts, "driftfix");
882 if (value) {
883 if (!strcmp(value, "slew")) {
884 object_register_sugar_prop("mc146818rtc",
885 "lost_tick_policy",
886 "slew");
887 } else if (!strcmp(value, "none")) {
888 /* discard is default */
889 } else {
890 error_report("invalid option value '%s'", value);
891 exit(1);
892 }
893 }
894 }
895
896 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
897 {
898 const char *proc_name;
899
900 if (qemu_opt_get(opts, "debug-threads")) {
901 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
902 }
903 qemu_name = qemu_opt_get(opts, "guest");
904
905 proc_name = qemu_opt_get(opts, "process");
906 if (proc_name) {
907 os_set_proc_name(proc_name);
908 }
909
910 return 0;
911 }
912
913 bool defaults_enabled(void)
914 {
915 return has_defaults;
916 }
917
918 #ifndef _WIN32
919 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
920 {
921 int fd, dupfd, flags;
922 int64_t fdset_id;
923 const char *fd_opaque = NULL;
924 AddfdInfo *fdinfo;
925
926 fd = qemu_opt_get_number(opts, "fd", -1);
927 fdset_id = qemu_opt_get_number(opts, "set", -1);
928 fd_opaque = qemu_opt_get(opts, "opaque");
929
930 if (fd < 0) {
931 error_setg(errp, "fd option is required and must be non-negative");
932 return -1;
933 }
934
935 if (fd <= STDERR_FILENO) {
936 error_setg(errp, "fd cannot be a standard I/O stream");
937 return -1;
938 }
939
940 /*
941 * All fds inherited across exec() necessarily have FD_CLOEXEC
942 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
943 */
944 flags = fcntl(fd, F_GETFD);
945 if (flags == -1 || (flags & FD_CLOEXEC)) {
946 error_setg(errp, "fd is not valid or already in use");
947 return -1;
948 }
949
950 if (fdset_id < 0) {
951 error_setg(errp, "set option is required and must be non-negative");
952 return -1;
953 }
954
955 #ifdef F_DUPFD_CLOEXEC
956 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
957 #else
958 dupfd = dup(fd);
959 if (dupfd != -1) {
960 qemu_set_cloexec(dupfd);
961 }
962 #endif
963 if (dupfd == -1) {
964 error_setg(errp, "error duplicating fd: %s", strerror(errno));
965 return -1;
966 }
967
968 /* add the duplicate fd, and optionally the opaque string, to the fd set */
969 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
970 &error_abort);
971 g_free(fdinfo);
972
973 return 0;
974 }
975
976 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
977 {
978 int fd;
979
980 fd = qemu_opt_get_number(opts, "fd", -1);
981 close(fd);
982
983 return 0;
984 }
985 #endif
986
987 /***********************************************************/
988 /* QEMU Block devices */
989
990 #define HD_OPTS "media=disk"
991 #define CDROM_OPTS "media=cdrom"
992 #define FD_OPTS ""
993 #define PFLASH_OPTS ""
994 #define MTD_OPTS ""
995 #define SD_OPTS ""
996
997 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
998 {
999 BlockInterfaceType *block_default_type = opaque;
1000
1001 return drive_new(opts, *block_default_type, errp) == NULL;
1002 }
1003
1004 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1005 {
1006 if (qemu_opt_get(opts, "snapshot") == NULL) {
1007 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1008 }
1009 return 0;
1010 }
1011
1012 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1013 int index, const char *optstr)
1014 {
1015 QemuOpts *opts;
1016 DriveInfo *dinfo;
1017
1018 if (!enable || drive_get_by_index(type, index)) {
1019 return;
1020 }
1021
1022 opts = drive_add(type, index, NULL, optstr);
1023 if (snapshot) {
1024 drive_enable_snapshot(NULL, opts, NULL);
1025 }
1026
1027 dinfo = drive_new(opts, type, &error_abort);
1028 dinfo->is_default = true;
1029
1030 }
1031
1032 typedef struct BlockdevOptionsQueueEntry {
1033 BlockdevOptions *bdo;
1034 Location loc;
1035 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1036 } BlockdevOptionsQueueEntry;
1037
1038 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1039
1040 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1041 MachineClass *machine_class, int snapshot)
1042 {
1043 /*
1044 * If the currently selected machine wishes to override the
1045 * units-per-bus property of its default HBA interface type, do so
1046 * now.
1047 */
1048 if (machine_class->units_per_default_bus) {
1049 override_max_devs(machine_class->block_default_type,
1050 machine_class->units_per_default_bus);
1051 }
1052
1053 /* open the virtual block devices */
1054 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1055 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1056
1057 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1058 loc_push_restore(&bdo->loc);
1059 qmp_blockdev_add(bdo->bdo, &error_fatal);
1060 loc_pop(&bdo->loc);
1061 qapi_free_BlockdevOptions(bdo->bdo);
1062 g_free(bdo);
1063 }
1064 if (snapshot) {
1065 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1066 NULL, NULL);
1067 }
1068 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1069 &machine_class->block_default_type, &error_fatal)) {
1070 /* We printed help */
1071 exit(0);
1072 }
1073
1074 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1075 CDROM_OPTS);
1076 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1077 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1078
1079 }
1080
1081 static QemuOptsList qemu_smp_opts = {
1082 .name = "smp-opts",
1083 .implied_opt_name = "cpus",
1084 .merge_lists = true,
1085 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1086 .desc = {
1087 {
1088 .name = "cpus",
1089 .type = QEMU_OPT_NUMBER,
1090 }, {
1091 .name = "sockets",
1092 .type = QEMU_OPT_NUMBER,
1093 }, {
1094 .name = "dies",
1095 .type = QEMU_OPT_NUMBER,
1096 }, {
1097 .name = "cores",
1098 .type = QEMU_OPT_NUMBER,
1099 }, {
1100 .name = "threads",
1101 .type = QEMU_OPT_NUMBER,
1102 }, {
1103 .name = "maxcpus",
1104 .type = QEMU_OPT_NUMBER,
1105 },
1106 { /*End of list */ }
1107 },
1108 };
1109
1110 static void realtime_init(void)
1111 {
1112 if (enable_mlock) {
1113 if (os_mlock() < 0) {
1114 error_report("locking memory failed");
1115 exit(1);
1116 }
1117 }
1118 }
1119
1120
1121 static void configure_msg(QemuOpts *opts)
1122 {
1123 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1124 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
1125 }
1126
1127
1128 /***********************************************************/
1129 /* USB devices */
1130
1131 static int usb_device_add(const char *devname)
1132 {
1133 USBDevice *dev = NULL;
1134
1135 if (!machine_usb(current_machine)) {
1136 return -1;
1137 }
1138
1139 dev = usbdevice_create(devname);
1140 if (!dev)
1141 return -1;
1142
1143 return 0;
1144 }
1145
1146 static int usb_parse(const char *cmdline)
1147 {
1148 int r;
1149 r = usb_device_add(cmdline);
1150 if (r < 0) {
1151 error_report("could not add USB device '%s'", cmdline);
1152 }
1153 return r;
1154 }
1155
1156 /***********************************************************/
1157 /* machine registration */
1158
1159 MachineState *current_machine;
1160
1161 static MachineClass *find_machine(const char *name, GSList *machines)
1162 {
1163 GSList *el;
1164
1165 for (el = machines; el; el = el->next) {
1166 MachineClass *mc = el->data;
1167
1168 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1169 return mc;
1170 }
1171 }
1172
1173 return NULL;
1174 }
1175
1176 static MachineClass *find_default_machine(GSList *machines)
1177 {
1178 GSList *el;
1179 MachineClass *default_machineclass = NULL;
1180
1181 for (el = machines; el; el = el->next) {
1182 MachineClass *mc = el->data;
1183
1184 if (mc->is_default) {
1185 assert(default_machineclass == NULL && "Multiple default machines");
1186 default_machineclass = mc;
1187 }
1188 }
1189
1190 return default_machineclass;
1191 }
1192
1193 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1194 {
1195 ObjectProperty *prop;
1196 ObjectPropertyIterator iter;
1197
1198 if (!qemu_opt_has_help_opt(opts)) {
1199 return 0;
1200 }
1201
1202 object_property_iter_init(&iter, OBJECT(machine));
1203 while ((prop = object_property_iter_next(&iter))) {
1204 if (!prop->set) {
1205 continue;
1206 }
1207
1208 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1209 prop->name, prop->type);
1210 if (prop->description) {
1211 printf(" (%s)\n", prop->description);
1212 } else {
1213 printf("\n");
1214 }
1215 }
1216
1217 return 1;
1218 }
1219
1220 struct VMChangeStateEntry {
1221 VMChangeStateHandler *cb;
1222 void *opaque;
1223 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1224 int priority;
1225 };
1226
1227 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1228
1229 /**
1230 * qemu_add_vm_change_state_handler_prio:
1231 * @cb: the callback to invoke
1232 * @opaque: user data passed to the callback
1233 * @priority: low priorities execute first when the vm runs and the reverse is
1234 * true when the vm stops
1235 *
1236 * Register a callback function that is invoked when the vm starts or stops
1237 * running.
1238 *
1239 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1240 */
1241 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1242 VMChangeStateHandler *cb, void *opaque, int priority)
1243 {
1244 VMChangeStateEntry *e;
1245 VMChangeStateEntry *other;
1246
1247 e = g_malloc0(sizeof(*e));
1248 e->cb = cb;
1249 e->opaque = opaque;
1250 e->priority = priority;
1251
1252 /* Keep list sorted in ascending priority order */
1253 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1254 if (priority < other->priority) {
1255 QTAILQ_INSERT_BEFORE(other, e, entries);
1256 return e;
1257 }
1258 }
1259
1260 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1261 return e;
1262 }
1263
1264 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1265 void *opaque)
1266 {
1267 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1268 }
1269
1270 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1271 {
1272 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1273 g_free(e);
1274 }
1275
1276 void vm_state_notify(int running, RunState state)
1277 {
1278 VMChangeStateEntry *e, *next;
1279
1280 trace_vm_state_notify(running, state, RunState_str(state));
1281
1282 if (running) {
1283 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1284 e->cb(e->opaque, running, state);
1285 }
1286 } else {
1287 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1288 e->cb(e->opaque, running, state);
1289 }
1290 }
1291 }
1292
1293 static ShutdownCause reset_requested;
1294 static ShutdownCause shutdown_requested;
1295 static int shutdown_signal;
1296 static pid_t shutdown_pid;
1297 static int powerdown_requested;
1298 static int debug_requested;
1299 static int suspend_requested;
1300 static bool preconfig_exit_requested = true;
1301 static WakeupReason wakeup_reason;
1302 static NotifierList powerdown_notifiers =
1303 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1304 static NotifierList suspend_notifiers =
1305 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1306 static NotifierList wakeup_notifiers =
1307 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1308 static NotifierList shutdown_notifiers =
1309 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1310 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1311
1312 ShutdownCause qemu_shutdown_requested_get(void)
1313 {
1314 return shutdown_requested;
1315 }
1316
1317 ShutdownCause qemu_reset_requested_get(void)
1318 {
1319 return reset_requested;
1320 }
1321
1322 static int qemu_shutdown_requested(void)
1323 {
1324 return qatomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1325 }
1326
1327 static void qemu_kill_report(void)
1328 {
1329 if (!qtest_driver() && shutdown_signal) {
1330 if (shutdown_pid == 0) {
1331 /* This happens for eg ^C at the terminal, so it's worth
1332 * avoiding printing an odd message in that case.
1333 */
1334 error_report("terminating on signal %d", shutdown_signal);
1335 } else {
1336 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1337
1338 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1339 shutdown_signal, shutdown_pid,
1340 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1341 g_free(shutdown_cmd);
1342 }
1343 shutdown_signal = 0;
1344 }
1345 }
1346
1347 static ShutdownCause qemu_reset_requested(void)
1348 {
1349 ShutdownCause r = reset_requested;
1350
1351 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1352 reset_requested = SHUTDOWN_CAUSE_NONE;
1353 return r;
1354 }
1355 return SHUTDOWN_CAUSE_NONE;
1356 }
1357
1358 static int qemu_suspend_requested(void)
1359 {
1360 int r = suspend_requested;
1361 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1362 suspend_requested = 0;
1363 return r;
1364 }
1365 return false;
1366 }
1367
1368 static WakeupReason qemu_wakeup_requested(void)
1369 {
1370 return wakeup_reason;
1371 }
1372
1373 static int qemu_powerdown_requested(void)
1374 {
1375 int r = powerdown_requested;
1376 powerdown_requested = 0;
1377 return r;
1378 }
1379
1380 static int qemu_debug_requested(void)
1381 {
1382 int r = debug_requested;
1383 debug_requested = 0;
1384 return r;
1385 }
1386
1387 void qemu_exit_preconfig_request(void)
1388 {
1389 preconfig_exit_requested = true;
1390 }
1391
1392 /*
1393 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1394 */
1395 void qemu_system_reset(ShutdownCause reason)
1396 {
1397 MachineClass *mc;
1398
1399 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1400
1401 cpu_synchronize_all_states();
1402
1403 if (mc && mc->reset) {
1404 mc->reset(current_machine);
1405 } else {
1406 qemu_devices_reset();
1407 }
1408 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1409 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1410 }
1411 cpu_synchronize_all_post_reset();
1412 }
1413
1414 /*
1415 * Wake the VM after suspend.
1416 */
1417 static void qemu_system_wakeup(void)
1418 {
1419 MachineClass *mc;
1420
1421 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1422
1423 if (mc && mc->wakeup) {
1424 mc->wakeup(current_machine);
1425 }
1426 }
1427
1428 void qemu_system_guest_panicked(GuestPanicInformation *info)
1429 {
1430 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1431
1432 if (current_cpu) {
1433 current_cpu->crash_occurred = true;
1434 }
1435 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1436 !!info, info);
1437 vm_stop(RUN_STATE_GUEST_PANICKED);
1438 if (!no_shutdown) {
1439 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1440 !!info, info);
1441 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1442 }
1443
1444 if (info) {
1445 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1446 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1447 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1448 info->u.hyper_v.arg1,
1449 info->u.hyper_v.arg2,
1450 info->u.hyper_v.arg3,
1451 info->u.hyper_v.arg4,
1452 info->u.hyper_v.arg5);
1453 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1454 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1455 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1456 info->u.s390.core,
1457 S390CrashReason_str(info->u.s390.reason),
1458 info->u.s390.psw_mask,
1459 info->u.s390.psw_addr);
1460 }
1461 qapi_free_GuestPanicInformation(info);
1462 }
1463 }
1464
1465 void qemu_system_guest_crashloaded(GuestPanicInformation *info)
1466 {
1467 qemu_log_mask(LOG_GUEST_ERROR, "Guest crash loaded");
1468
1469 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN,
1470 !!info, info);
1471
1472 if (info) {
1473 qapi_free_GuestPanicInformation(info);
1474 }
1475 }
1476
1477 void qemu_system_reset_request(ShutdownCause reason)
1478 {
1479 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1480 shutdown_requested = reason;
1481 } else {
1482 reset_requested = reason;
1483 }
1484 cpu_stop_current();
1485 qemu_notify_event();
1486 }
1487
1488 static void qemu_system_suspend(void)
1489 {
1490 pause_all_vcpus();
1491 notifier_list_notify(&suspend_notifiers, NULL);
1492 runstate_set(RUN_STATE_SUSPENDED);
1493 qapi_event_send_suspend();
1494 }
1495
1496 void qemu_system_suspend_request(void)
1497 {
1498 if (runstate_check(RUN_STATE_SUSPENDED)) {
1499 return;
1500 }
1501 suspend_requested = 1;
1502 cpu_stop_current();
1503 qemu_notify_event();
1504 }
1505
1506 void qemu_register_suspend_notifier(Notifier *notifier)
1507 {
1508 notifier_list_add(&suspend_notifiers, notifier);
1509 }
1510
1511 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1512 {
1513 trace_system_wakeup_request(reason);
1514
1515 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1516 error_setg(errp,
1517 "Unable to wake up: guest is not in suspended state");
1518 return;
1519 }
1520 if (!(wakeup_reason_mask & (1 << reason))) {
1521 return;
1522 }
1523 runstate_set(RUN_STATE_RUNNING);
1524 wakeup_reason = reason;
1525 qemu_notify_event();
1526 }
1527
1528 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1529 {
1530 if (enabled) {
1531 wakeup_reason_mask |= (1 << reason);
1532 } else {
1533 wakeup_reason_mask &= ~(1 << reason);
1534 }
1535 }
1536
1537 void qemu_register_wakeup_notifier(Notifier *notifier)
1538 {
1539 notifier_list_add(&wakeup_notifiers, notifier);
1540 }
1541
1542 void qemu_register_wakeup_support(void)
1543 {
1544 wakeup_suspend_enabled = true;
1545 }
1546
1547 bool qemu_wakeup_suspend_enabled(void)
1548 {
1549 return wakeup_suspend_enabled;
1550 }
1551
1552 void qemu_system_killed(int signal, pid_t pid)
1553 {
1554 shutdown_signal = signal;
1555 shutdown_pid = pid;
1556 no_shutdown = 0;
1557
1558 /* Cannot call qemu_system_shutdown_request directly because
1559 * we are in a signal handler.
1560 */
1561 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1562 qemu_notify_event();
1563 }
1564
1565 void qemu_system_shutdown_request(ShutdownCause reason)
1566 {
1567 trace_qemu_system_shutdown_request(reason);
1568 replay_shutdown_request(reason);
1569 shutdown_requested = reason;
1570 qemu_notify_event();
1571 }
1572
1573 static void qemu_system_powerdown(void)
1574 {
1575 qapi_event_send_powerdown();
1576 notifier_list_notify(&powerdown_notifiers, NULL);
1577 }
1578
1579 static void qemu_system_shutdown(ShutdownCause cause)
1580 {
1581 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1582 notifier_list_notify(&shutdown_notifiers, &cause);
1583 }
1584
1585 void qemu_system_powerdown_request(void)
1586 {
1587 trace_qemu_system_powerdown_request();
1588 powerdown_requested = 1;
1589 qemu_notify_event();
1590 }
1591
1592 void qemu_register_powerdown_notifier(Notifier *notifier)
1593 {
1594 notifier_list_add(&powerdown_notifiers, notifier);
1595 }
1596
1597 void qemu_register_shutdown_notifier(Notifier *notifier)
1598 {
1599 notifier_list_add(&shutdown_notifiers, notifier);
1600 }
1601
1602 void qemu_system_debug_request(void)
1603 {
1604 debug_requested = 1;
1605 qemu_notify_event();
1606 }
1607
1608 static bool main_loop_should_exit(void)
1609 {
1610 RunState r;
1611 ShutdownCause request;
1612
1613 if (preconfig_exit_requested) {
1614 if (runstate_check(RUN_STATE_PRECONFIG)) {
1615 runstate_set(RUN_STATE_PRELAUNCH);
1616 }
1617 preconfig_exit_requested = false;
1618 return true;
1619 }
1620 if (qemu_debug_requested()) {
1621 vm_stop(RUN_STATE_DEBUG);
1622 }
1623 if (qemu_suspend_requested()) {
1624 qemu_system_suspend();
1625 }
1626 request = qemu_shutdown_requested();
1627 if (request) {
1628 qemu_kill_report();
1629 qemu_system_shutdown(request);
1630 if (no_shutdown) {
1631 vm_stop(RUN_STATE_SHUTDOWN);
1632 } else {
1633 return true;
1634 }
1635 }
1636 request = qemu_reset_requested();
1637 if (request) {
1638 pause_all_vcpus();
1639 qemu_system_reset(request);
1640 resume_all_vcpus();
1641 /*
1642 * runstate can change in pause_all_vcpus()
1643 * as iothread mutex is unlocked
1644 */
1645 if (!runstate_check(RUN_STATE_RUNNING) &&
1646 !runstate_check(RUN_STATE_INMIGRATE) &&
1647 !runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1648 runstate_set(RUN_STATE_PRELAUNCH);
1649 }
1650 }
1651 if (qemu_wakeup_requested()) {
1652 pause_all_vcpus();
1653 qemu_system_wakeup();
1654 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1655 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1656 resume_all_vcpus();
1657 qapi_event_send_wakeup();
1658 }
1659 if (qemu_powerdown_requested()) {
1660 qemu_system_powerdown();
1661 }
1662 if (qemu_vmstop_requested(&r)) {
1663 vm_stop(r);
1664 }
1665 return false;
1666 }
1667
1668 void qemu_main_loop(void)
1669 {
1670 #ifdef CONFIG_PROFILER
1671 int64_t ti;
1672 #endif
1673 while (!main_loop_should_exit()) {
1674 #ifdef CONFIG_PROFILER
1675 ti = profile_getclock();
1676 #endif
1677 main_loop_wait(false);
1678 #ifdef CONFIG_PROFILER
1679 dev_time += profile_getclock() - ti;
1680 #endif
1681 }
1682 }
1683
1684 static void version(void)
1685 {
1686 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1687 QEMU_COPYRIGHT "\n");
1688 }
1689
1690 static void help(int exitcode)
1691 {
1692 version();
1693 printf("usage: %s [options] [disk_image]\n\n"
1694 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1695 error_get_progname());
1696
1697 #define QEMU_OPTIONS_GENERATE_HELP
1698 #include "qemu-options-wrapper.h"
1699
1700 printf("\nDuring emulation, the following keys are useful:\n"
1701 "ctrl-alt-f toggle full screen\n"
1702 "ctrl-alt-n switch to virtual console 'n'\n"
1703 "ctrl-alt toggle mouse and keyboard grab\n"
1704 "\n"
1705 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1706 "\n"
1707 QEMU_HELP_BOTTOM "\n");
1708
1709 exit(exitcode);
1710 }
1711
1712 #define HAS_ARG 0x0001
1713
1714 typedef struct QEMUOption {
1715 const char *name;
1716 int flags;
1717 int index;
1718 uint32_t arch_mask;
1719 } QEMUOption;
1720
1721 static const QEMUOption qemu_options[] = {
1722 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1723 #define QEMU_OPTIONS_GENERATE_OPTIONS
1724 #include "qemu-options-wrapper.h"
1725 { NULL },
1726 };
1727
1728 typedef struct VGAInterfaceInfo {
1729 const char *opt_name; /* option name */
1730 const char *name; /* human-readable name */
1731 /* Class names indicating that support is available.
1732 * If no class is specified, the interface is always available */
1733 const char *class_names[2];
1734 } VGAInterfaceInfo;
1735
1736 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1737 [VGA_NONE] = {
1738 .opt_name = "none",
1739 .name = "no graphic card",
1740 },
1741 [VGA_STD] = {
1742 .opt_name = "std",
1743 .name = "standard VGA",
1744 .class_names = { "VGA", "isa-vga" },
1745 },
1746 [VGA_CIRRUS] = {
1747 .opt_name = "cirrus",
1748 .name = "Cirrus VGA",
1749 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1750 },
1751 [VGA_VMWARE] = {
1752 .opt_name = "vmware",
1753 .name = "VMWare SVGA",
1754 .class_names = { "vmware-svga" },
1755 },
1756 [VGA_VIRTIO] = {
1757 .opt_name = "virtio",
1758 .name = "Virtio VGA",
1759 .class_names = { "virtio-vga" },
1760 },
1761 [VGA_QXL] = {
1762 .opt_name = "qxl",
1763 .name = "QXL VGA",
1764 .class_names = { "qxl-vga" },
1765 },
1766 [VGA_TCX] = {
1767 .opt_name = "tcx",
1768 .name = "TCX framebuffer",
1769 .class_names = { "SUNW,tcx" },
1770 },
1771 [VGA_CG3] = {
1772 .opt_name = "cg3",
1773 .name = "CG3 framebuffer",
1774 .class_names = { "cgthree" },
1775 },
1776 [VGA_XENFB] = {
1777 .opt_name = "xenfb",
1778 .name = "Xen paravirtualized framebuffer",
1779 },
1780 };
1781
1782 static bool vga_interface_available(VGAInterfaceType t)
1783 {
1784 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1785
1786 assert(t < VGA_TYPE_MAX);
1787 return !ti->class_names[0] ||
1788 module_object_class_by_name(ti->class_names[0]) ||
1789 module_object_class_by_name(ti->class_names[1]);
1790 }
1791
1792 static const char *
1793 get_default_vga_model(const MachineClass *machine_class)
1794 {
1795 if (machine_class->default_display) {
1796 return machine_class->default_display;
1797 } else if (vga_interface_available(VGA_CIRRUS)) {
1798 return "cirrus";
1799 } else if (vga_interface_available(VGA_STD)) {
1800 return "std";
1801 }
1802
1803 return NULL;
1804 }
1805
1806 static void select_vgahw(const MachineClass *machine_class, const char *p)
1807 {
1808 const char *opts;
1809 int t;
1810
1811 if (g_str_equal(p, "help")) {
1812 const char *def = get_default_vga_model(machine_class);
1813
1814 for (t = 0; t < VGA_TYPE_MAX; t++) {
1815 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1816
1817 if (vga_interface_available(t) && ti->opt_name) {
1818 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1819 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1820 }
1821 }
1822 exit(0);
1823 }
1824
1825 assert(vga_interface_type == VGA_NONE);
1826 for (t = 0; t < VGA_TYPE_MAX; t++) {
1827 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1828 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1829 if (!vga_interface_available(t)) {
1830 error_report("%s not available", ti->name);
1831 exit(1);
1832 }
1833 vga_interface_type = t;
1834 break;
1835 }
1836 }
1837 if (t == VGA_TYPE_MAX) {
1838 invalid_vga:
1839 error_report("unknown vga type: %s", p);
1840 exit(1);
1841 }
1842 while (*opts) {
1843 const char *nextopt;
1844
1845 if (strstart(opts, ",retrace=", &nextopt)) {
1846 opts = nextopt;
1847 if (strstart(opts, "dumb", &nextopt))
1848 vga_retrace_method = VGA_RETRACE_DUMB;
1849 else if (strstart(opts, "precise", &nextopt))
1850 vga_retrace_method = VGA_RETRACE_PRECISE;
1851 else goto invalid_vga;
1852 } else goto invalid_vga;
1853 opts = nextopt;
1854 }
1855 }
1856
1857 static void parse_display_qapi(const char *optarg)
1858 {
1859 DisplayOptions *opts;
1860 Visitor *v;
1861
1862 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1863
1864 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1865 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1866
1867 qapi_free_DisplayOptions(opts);
1868 visit_free(v);
1869 }
1870
1871 DisplayOptions *qmp_query_display_options(Error **errp)
1872 {
1873 return QAPI_CLONE(DisplayOptions, &dpy);
1874 }
1875
1876 static void parse_display(const char *p)
1877 {
1878 const char *opts;
1879
1880 if (is_help_option(p)) {
1881 qemu_display_help();
1882 exit(0);
1883 }
1884
1885 if (strstart(p, "sdl", &opts)) {
1886 /*
1887 * sdl DisplayType needs hand-crafted parser instead of
1888 * parse_display_qapi() due to some options not in
1889 * DisplayOptions, specifically:
1890 * - frame
1891 * Already deprecated.
1892 * - ctrl_grab + alt_grab
1893 * Not clear yet what happens to them long-term. Should
1894 * replaced by something better or deprecated and dropped.
1895 */
1896 dpy.type = DISPLAY_TYPE_SDL;
1897 while (*opts) {
1898 const char *nextopt;
1899
1900 if (strstart(opts, ",alt_grab=", &nextopt)) {
1901 opts = nextopt;
1902 if (strstart(opts, "on", &nextopt)) {
1903 alt_grab = 1;
1904 } else if (strstart(opts, "off", &nextopt)) {
1905 alt_grab = 0;
1906 } else {
1907 goto invalid_sdl_args;
1908 }
1909 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1910 opts = nextopt;
1911 if (strstart(opts, "on", &nextopt)) {
1912 ctrl_grab = 1;
1913 } else if (strstart(opts, "off", &nextopt)) {
1914 ctrl_grab = 0;
1915 } else {
1916 goto invalid_sdl_args;
1917 }
1918 } else if (strstart(opts, ",window_close=", &nextopt)) {
1919 opts = nextopt;
1920 dpy.has_window_close = true;
1921 if (strstart(opts, "on", &nextopt)) {
1922 dpy.window_close = true;
1923 } else if (strstart(opts, "off", &nextopt)) {
1924 dpy.window_close = false;
1925 } else {
1926 goto invalid_sdl_args;
1927 }
1928 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1929 opts = nextopt;
1930 dpy.has_show_cursor = true;
1931 if (strstart(opts, "on", &nextopt)) {
1932 dpy.show_cursor = true;
1933 } else if (strstart(opts, "off", &nextopt)) {
1934 dpy.show_cursor = false;
1935 } else {
1936 goto invalid_sdl_args;
1937 }
1938 } else if (strstart(opts, ",gl=", &nextopt)) {
1939 opts = nextopt;
1940 dpy.has_gl = true;
1941 if (strstart(opts, "on", &nextopt)) {
1942 dpy.gl = DISPLAYGL_MODE_ON;
1943 } else if (strstart(opts, "core", &nextopt)) {
1944 dpy.gl = DISPLAYGL_MODE_CORE;
1945 } else if (strstart(opts, "es", &nextopt)) {
1946 dpy.gl = DISPLAYGL_MODE_ES;
1947 } else if (strstart(opts, "off", &nextopt)) {
1948 dpy.gl = DISPLAYGL_MODE_OFF;
1949 } else {
1950 goto invalid_sdl_args;
1951 }
1952 } else {
1953 invalid_sdl_args:
1954 error_report("invalid SDL option string");
1955 exit(1);
1956 }
1957 opts = nextopt;
1958 }
1959 } else if (strstart(p, "vnc", &opts)) {
1960 /*
1961 * vnc isn't a (local) DisplayType but a protocol for remote
1962 * display access.
1963 */
1964 if (*opts == '=') {
1965 vnc_parse(opts + 1, &error_fatal);
1966 } else {
1967 error_report("VNC requires a display argument vnc=<display>");
1968 exit(1);
1969 }
1970 } else {
1971 parse_display_qapi(p);
1972 }
1973 }
1974
1975 char *qemu_find_file(int type, const char *name)
1976 {
1977 int i;
1978 const char *subdir;
1979 char *buf;
1980
1981 /* Try the name as a straight path first */
1982 if (access(name, R_OK) == 0) {
1983 trace_load_file(name, name);
1984 return g_strdup(name);
1985 }
1986
1987 switch (type) {
1988 case QEMU_FILE_TYPE_BIOS:
1989 subdir = "";
1990 break;
1991 case QEMU_FILE_TYPE_KEYMAP:
1992 subdir = "keymaps/";
1993 break;
1994 default:
1995 abort();
1996 }
1997
1998 for (i = 0; i < data_dir_idx; i++) {
1999 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2000 if (access(buf, R_OK) == 0) {
2001 trace_load_file(name, buf);
2002 return buf;
2003 }
2004 g_free(buf);
2005 }
2006 return NULL;
2007 }
2008
2009 void qemu_add_data_dir(char *path)
2010 {
2011 int i;
2012
2013 if (path == NULL) {
2014 return;
2015 }
2016 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2017 return;
2018 }
2019 for (i = 0; i < data_dir_idx; i++) {
2020 if (strcmp(data_dir[i], path) == 0) {
2021 g_free(path); /* duplicate */
2022 return;
2023 }
2024 }
2025 data_dir[data_dir_idx++] = path;
2026 }
2027
2028 static inline bool nonempty_str(const char *str)
2029 {
2030 return str && *str;
2031 }
2032
2033 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2034 {
2035 gchar *buf;
2036 size_t size;
2037 const char *name, *file, *str, *gen_id;
2038 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2039
2040 if (fw_cfg == NULL) {
2041 error_setg(errp, "fw_cfg device not available");
2042 return -1;
2043 }
2044 name = qemu_opt_get(opts, "name");
2045 file = qemu_opt_get(opts, "file");
2046 str = qemu_opt_get(opts, "string");
2047 gen_id = qemu_opt_get(opts, "gen_id");
2048
2049 /* we need the name, and exactly one of: file, content string, gen_id */
2050 if (!nonempty_str(name) ||
2051 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
2052 error_setg(errp, "name, plus exactly one of file,"
2053 " string and gen_id, are needed");
2054 return -1;
2055 }
2056 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2057 error_setg(errp, "name too long (max. %d char)",
2058 FW_CFG_MAX_FILE_PATH - 1);
2059 return -1;
2060 }
2061 if (nonempty_str(gen_id)) {
2062 /*
2063 * In this particular case where the content is populated
2064 * internally, the "etc/" namespace protection is relaxed,
2065 * so do not emit a warning.
2066 */
2067 } else if (strncmp(name, "opt/", 4) != 0) {
2068 warn_report("externally provided fw_cfg item names "
2069 "should be prefixed with \"opt/\"");
2070 }
2071 if (nonempty_str(str)) {
2072 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2073 buf = g_memdup(str, size);
2074 } else if (nonempty_str(gen_id)) {
2075 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
2076 return -1;
2077 }
2078 return 0;
2079 } else {
2080 GError *err = NULL;
2081 if (!g_file_get_contents(file, &buf, &size, &err)) {
2082 error_setg(errp, "can't load %s: %s", file, err->message);
2083 g_error_free(err);
2084 return -1;
2085 }
2086 }
2087 /* For legacy, keep user files in a specific global order. */
2088 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2089 fw_cfg_add_file(fw_cfg, name, buf, size);
2090 fw_cfg_reset_order_override(fw_cfg);
2091 return 0;
2092 }
2093
2094 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2095 {
2096 return qdev_device_help(opts);
2097 }
2098
2099 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2100 {
2101 DeviceState *dev;
2102
2103 dev = qdev_device_add(opts, errp);
2104 if (!dev && *errp) {
2105 error_report_err(*errp);
2106 return -1;
2107 } else if (dev) {
2108 object_unref(OBJECT(dev));
2109 }
2110 return 0;
2111 }
2112
2113 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2114 {
2115 Error *local_err = NULL;
2116
2117 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2118 if (local_err) {
2119 error_propagate(errp, local_err);
2120 return -1;
2121 }
2122 exit(0);
2123 }
2124 return 0;
2125 }
2126
2127 #ifdef CONFIG_VIRTFS
2128 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2129 {
2130 return qemu_fsdev_add(opts, errp);
2131 }
2132 #endif
2133
2134 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2135 {
2136 return monitor_init_opts(opts, errp);
2137 }
2138
2139 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2140 {
2141 static int monitor_device_index = 0;
2142 QemuOpts *opts;
2143 const char *p;
2144 char label[32];
2145
2146 if (strstart(optarg, "chardev:", &p)) {
2147 snprintf(label, sizeof(label), "%s", p);
2148 } else {
2149 snprintf(label, sizeof(label), "compat_monitor%d",
2150 monitor_device_index);
2151 opts = qemu_chr_parse_compat(label, optarg, true);
2152 if (!opts) {
2153 error_report("parse error: %s", optarg);
2154 exit(1);
2155 }
2156 }
2157
2158 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2159 qemu_opt_set(opts, "mode", mode, &error_abort);
2160 qemu_opt_set(opts, "chardev", label, &error_abort);
2161 if (!strcmp(mode, "control")) {
2162 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2163 } else {
2164 assert(pretty == false);
2165 }
2166 monitor_device_index++;
2167 }
2168
2169 struct device_config {
2170 enum {
2171 DEV_USB, /* -usbdevice */
2172 DEV_SERIAL, /* -serial */
2173 DEV_PARALLEL, /* -parallel */
2174 DEV_DEBUGCON, /* -debugcon */
2175 DEV_GDB, /* -gdb, -s */
2176 DEV_SCLP, /* s390 sclp */
2177 } type;
2178 const char *cmdline;
2179 Location loc;
2180 QTAILQ_ENTRY(device_config) next;
2181 };
2182
2183 static QTAILQ_HEAD(, device_config) device_configs =
2184 QTAILQ_HEAD_INITIALIZER(device_configs);
2185
2186 static void add_device_config(int type, const char *cmdline)
2187 {
2188 struct device_config *conf;
2189
2190 conf = g_malloc0(sizeof(*conf));
2191 conf->type = type;
2192 conf->cmdline = cmdline;
2193 loc_save(&conf->loc);
2194 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2195 }
2196
2197 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2198 {
2199 struct device_config *conf;
2200 int rc;
2201
2202 QTAILQ_FOREACH(conf, &device_configs, next) {
2203 if (conf->type != type)
2204 continue;
2205 loc_push_restore(&conf->loc);
2206 rc = func(conf->cmdline);
2207 loc_pop(&conf->loc);
2208 if (rc) {
2209 return rc;
2210 }
2211 }
2212 return 0;
2213 }
2214
2215 static int serial_parse(const char *devname)
2216 {
2217 int index = num_serial_hds;
2218 char label[32];
2219
2220 if (strcmp(devname, "none") == 0)
2221 return 0;
2222 snprintf(label, sizeof(label), "serial%d", index);
2223 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2224
2225 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2226 if (!serial_hds[index]) {
2227 error_report("could not connect serial device"
2228 " to character backend '%s'", devname);
2229 return -1;
2230 }
2231 num_serial_hds++;
2232 return 0;
2233 }
2234
2235 Chardev *serial_hd(int i)
2236 {
2237 assert(i >= 0);
2238 if (i < num_serial_hds) {
2239 return serial_hds[i];
2240 }
2241 return NULL;
2242 }
2243
2244 int serial_max_hds(void)
2245 {
2246 return num_serial_hds;
2247 }
2248
2249 static int parallel_parse(const char *devname)
2250 {
2251 static int index = 0;
2252 char label[32];
2253
2254 if (strcmp(devname, "none") == 0)
2255 return 0;
2256 if (index == MAX_PARALLEL_PORTS) {
2257 error_report("too many parallel ports");
2258 exit(1);
2259 }
2260 snprintf(label, sizeof(label), "parallel%d", index);
2261 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2262 if (!parallel_hds[index]) {
2263 error_report("could not connect parallel device"
2264 " to character backend '%s'", devname);
2265 return -1;
2266 }
2267 index++;
2268 return 0;
2269 }
2270
2271 static int debugcon_parse(const char *devname)
2272 {
2273 QemuOpts *opts;
2274
2275 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2276 error_report("invalid character backend '%s'", devname);
2277 exit(1);
2278 }
2279 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2280 if (!opts) {
2281 error_report("already have a debugcon device");
2282 exit(1);
2283 }
2284 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2285 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2286 return 0;
2287 }
2288
2289 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2290 {
2291 const MachineClass *mc1 = a, *mc2 = b;
2292 int res;
2293
2294 if (mc1->family == NULL) {
2295 if (mc2->family == NULL) {
2296 /* Compare standalone machine types against each other; they sort
2297 * in increasing order.
2298 */
2299 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2300 object_class_get_name(OBJECT_CLASS(mc2)));
2301 }
2302
2303 /* Standalone machine types sort after families. */
2304 return 1;
2305 }
2306
2307 if (mc2->family == NULL) {
2308 /* Families sort before standalone machine types. */
2309 return -1;
2310 }
2311
2312 /* Families sort between each other alphabetically increasingly. */
2313 res = strcmp(mc1->family, mc2->family);
2314 if (res != 0) {
2315 return res;
2316 }
2317
2318 /* Within the same family, machine types sort in decreasing order. */
2319 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2320 object_class_get_name(OBJECT_CLASS(mc1)));
2321 }
2322
2323 static MachineClass *machine_parse(const char *name, GSList *machines)
2324 {
2325 MachineClass *mc;
2326 GSList *el;
2327
2328 if (is_help_option(name)) {
2329 printf("Supported machines are:\n");
2330 machines = g_slist_sort(machines, machine_class_cmp);
2331 for (el = machines; el; el = el->next) {
2332 MachineClass *mc = el->data;
2333 if (mc->alias) {
2334 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2335 }
2336 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2337 mc->is_default ? " (default)" : "",
2338 mc->deprecation_reason ? " (deprecated)" : "");
2339 }
2340 exit(0);
2341 }
2342
2343 mc = find_machine(name, machines);
2344 if (!mc) {
2345 error_report("unsupported machine type");
2346 error_printf("Use -machine help to list supported machines\n");
2347 exit(1);
2348 }
2349 return mc;
2350 }
2351
2352 void qemu_add_exit_notifier(Notifier *notify)
2353 {
2354 notifier_list_add(&exit_notifiers, notify);
2355 }
2356
2357 void qemu_remove_exit_notifier(Notifier *notify)
2358 {
2359 notifier_remove(notify);
2360 }
2361
2362 static void qemu_run_exit_notifiers(void)
2363 {
2364 notifier_list_notify(&exit_notifiers, NULL);
2365 }
2366
2367 static const char *pid_file;
2368 static Notifier qemu_unlink_pidfile_notifier;
2369
2370 static void qemu_unlink_pidfile(Notifier *n, void *data)
2371 {
2372 if (pid_file) {
2373 unlink(pid_file);
2374 }
2375 }
2376
2377 bool machine_init_done;
2378
2379 void qemu_add_machine_init_done_notifier(Notifier *notify)
2380 {
2381 notifier_list_add(&machine_init_done_notifiers, notify);
2382 if (machine_init_done) {
2383 notify->notify(notify, NULL);
2384 }
2385 }
2386
2387 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2388 {
2389 notifier_remove(notify);
2390 }
2391
2392 static void qemu_run_machine_init_done_notifiers(void)
2393 {
2394 machine_init_done = true;
2395 notifier_list_notify(&machine_init_done_notifiers, NULL);
2396 }
2397
2398 static const QEMUOption *lookup_opt(int argc, char **argv,
2399 const char **poptarg, int *poptind)
2400 {
2401 const QEMUOption *popt;
2402 int optind = *poptind;
2403 char *r = argv[optind];
2404 const char *optarg;
2405
2406 loc_set_cmdline(argv, optind, 1);
2407 optind++;
2408 /* Treat --foo the same as -foo. */
2409 if (r[1] == '-')
2410 r++;
2411 popt = qemu_options;
2412 for(;;) {
2413 if (!popt->name) {
2414 error_report("invalid option");
2415 exit(1);
2416 }
2417 if (!strcmp(popt->name, r + 1))
2418 break;
2419 popt++;
2420 }
2421 if (popt->flags & HAS_ARG) {
2422 if (optind >= argc) {
2423 error_report("requires an argument");
2424 exit(1);
2425 }
2426 optarg = argv[optind++];
2427 loc_set_cmdline(argv, optind - 2, 2);
2428 } else {
2429 optarg = NULL;
2430 }
2431
2432 *poptarg = optarg;
2433 *poptind = optind;
2434
2435 return popt;
2436 }
2437
2438 static MachineClass *select_machine(void)
2439 {
2440 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2441 MachineClass *machine_class = find_default_machine(machines);
2442 const char *optarg;
2443 QemuOpts *opts;
2444 Location loc;
2445
2446 loc_push_none(&loc);
2447
2448 opts = qemu_get_machine_opts();
2449 qemu_opts_loc_restore(opts);
2450
2451 optarg = qemu_opt_get(opts, "type");
2452 if (optarg) {
2453 machine_class = machine_parse(optarg, machines);
2454 }
2455
2456 if (!machine_class) {
2457 error_report("No machine specified, and there is no default");
2458 error_printf("Use -machine help to list supported machines\n");
2459 exit(1);
2460 }
2461
2462 loc_pop(&loc);
2463 g_slist_free(machines);
2464 return machine_class;
2465 }
2466
2467 static int object_parse_property_opt(Object *obj,
2468 const char *name, const char *value,
2469 const char *skip, Error **errp)
2470 {
2471 if (g_str_equal(name, skip)) {
2472 return 0;
2473 }
2474
2475 if (!object_property_parse(obj, name, value, errp)) {
2476 return -1;
2477 }
2478
2479 return 0;
2480 }
2481
2482 static int machine_set_property(void *opaque,
2483 const char *name, const char *value,
2484 Error **errp)
2485 {
2486 g_autofree char *qom_name = g_strdup(name);
2487 char *p;
2488
2489 for (p = qom_name; *p; p++) {
2490 if (*p == '_') {
2491 *p = '-';
2492 }
2493 }
2494
2495 /* Legacy options do not correspond to MachineState properties. */
2496 if (g_str_equal(qom_name, "accel")) {
2497 return 0;
2498 }
2499 if (g_str_equal(qom_name, "igd-passthru")) {
2500 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2501 return 0;
2502 }
2503 if (g_str_equal(qom_name, "kvm-shadow-mem") ||
2504 g_str_equal(qom_name, "kernel-irqchip")) {
2505 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2506 return 0;
2507 }
2508
2509 return object_parse_property_opt(opaque, name, value, "type", errp);
2510 }
2511
2512 /*
2513 * Initial object creation happens before all other
2514 * QEMU data types are created. The majority of objects
2515 * can be created at this point. The rng-egd object
2516 * cannot be created here, as it depends on the chardev
2517 * already existing.
2518 */
2519 static bool object_create_initial(const char *type, QemuOpts *opts)
2520 {
2521 if (user_creatable_print_help(type, opts)) {
2522 exit(0);
2523 }
2524
2525 /*
2526 * Objects should not be made "delayed" without a reason. If you
2527 * add one, state the reason in a comment!
2528 */
2529
2530 /* Reason: rng-egd property "chardev" */
2531 if (g_str_equal(type, "rng-egd")) {
2532 return false;
2533 }
2534
2535 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2536 /* Reason: cryptodev-vhost-user property "chardev" */
2537 if (g_str_equal(type, "cryptodev-vhost-user")) {
2538 return false;
2539 }
2540 #endif
2541
2542 /*
2543 * Reason: filter-* property "netdev" etc.
2544 */
2545 if (g_str_equal(type, "filter-buffer") ||
2546 g_str_equal(type, "filter-dump") ||
2547 g_str_equal(type, "filter-mirror") ||
2548 g_str_equal(type, "filter-redirector") ||
2549 g_str_equal(type, "colo-compare") ||
2550 g_str_equal(type, "filter-rewriter") ||
2551 g_str_equal(type, "filter-replay")) {
2552 return false;
2553 }
2554
2555 /* Memory allocation by backends needs to be done
2556 * after configure_accelerator() (due to the tcg_enabled()
2557 * checks at memory_region_init_*()).
2558 *
2559 * Also, allocation of large amounts of memory may delay
2560 * chardev initialization for too long, and trigger timeouts
2561 * on software that waits for a monitor socket to be created
2562 * (e.g. libvirt).
2563 */
2564 if (g_str_has_prefix(type, "memory-backend-")) {
2565 return false;
2566 }
2567
2568 return true;
2569 }
2570
2571
2572 /*
2573 * The remainder of object creation happens after the
2574 * creation of chardev, fsdev, net clients and device data types.
2575 */
2576 static bool object_create_delayed(const char *type, QemuOpts *opts)
2577 {
2578 return !object_create_initial(type, opts);
2579 }
2580
2581
2582 static bool set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2583 MachineClass *mc)
2584 {
2585 uint64_t sz;
2586 const char *mem_str;
2587 const ram_addr_t default_ram_size = mc->default_ram_size;
2588 QemuOpts *opts = qemu_find_opts_singleton("memory");
2589 Location loc;
2590
2591 loc_push_none(&loc);
2592 qemu_opts_loc_restore(opts);
2593
2594 sz = 0;
2595 mem_str = qemu_opt_get(opts, "size");
2596 if (mem_str) {
2597 if (!*mem_str) {
2598 error_report("missing 'size' option value");
2599 exit(EXIT_FAILURE);
2600 }
2601
2602 sz = qemu_opt_get_size(opts, "size", ram_size);
2603
2604 /* Fix up legacy suffix-less format */
2605 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2606 uint64_t overflow_check = sz;
2607
2608 sz *= MiB;
2609 if (sz / MiB != overflow_check) {
2610 error_report("too large 'size' option value");
2611 exit(EXIT_FAILURE);
2612 }
2613 }
2614 }
2615
2616 /* backward compatibility behaviour for case "-m 0" */
2617 if (sz == 0) {
2618 sz = default_ram_size;
2619 }
2620
2621 sz = QEMU_ALIGN_UP(sz, 8192);
2622 if (mc->fixup_ram_size) {
2623 sz = mc->fixup_ram_size(sz);
2624 }
2625 ram_size = sz;
2626 if (ram_size != sz) {
2627 error_report("ram size too large");
2628 exit(EXIT_FAILURE);
2629 }
2630
2631 /* store value for the future use */
2632 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2633 *maxram_size = ram_size;
2634
2635 if (qemu_opt_get(opts, "maxmem")) {
2636 uint64_t slots;
2637
2638 sz = qemu_opt_get_size(opts, "maxmem", 0);
2639 slots = qemu_opt_get_number(opts, "slots", 0);
2640 if (sz < ram_size) {
2641 error_report("invalid value of -m option maxmem: "
2642 "maximum memory size (0x%" PRIx64 ") must be at least "
2643 "the initial memory size (0x" RAM_ADDR_FMT ")",
2644 sz, ram_size);
2645 exit(EXIT_FAILURE);
2646 } else if (slots && sz == ram_size) {
2647 error_report("invalid value of -m option maxmem: "
2648 "memory slots were specified but maximum memory size "
2649 "(0x%" PRIx64 ") is equal to the initial memory size "
2650 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2651 exit(EXIT_FAILURE);
2652 }
2653
2654 *maxram_size = sz;
2655 *ram_slots = slots;
2656 } else if (qemu_opt_get(opts, "slots")) {
2657 error_report("invalid -m option value: missing 'maxmem' option");
2658 exit(EXIT_FAILURE);
2659 }
2660
2661 loc_pop(&loc);
2662 return !!mem_str;
2663 }
2664
2665 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2666 {
2667 GlobalProperty *g;
2668
2669 g = g_malloc0(sizeof(*g));
2670 g->driver = qemu_opt_get(opts, "driver");
2671 g->property = qemu_opt_get(opts, "property");
2672 g->value = qemu_opt_get(opts, "value");
2673 qdev_prop_register_global(g);
2674 return 0;
2675 }
2676
2677 static int qemu_read_default_config_file(void)
2678 {
2679 int ret;
2680 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2681
2682 ret = qemu_read_config_file(file);
2683 if (ret < 0 && ret != -ENOENT) {
2684 return ret;
2685 }
2686
2687 return 0;
2688 }
2689
2690 static void user_register_global_props(void)
2691 {
2692 qemu_opts_foreach(qemu_find_opts("global"),
2693 global_init_func, NULL, NULL);
2694 }
2695
2696 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2697 {
2698 icount_configure(opts, errp);
2699 return 0;
2700 }
2701
2702 static int accelerator_set_property(void *opaque,
2703 const char *name, const char *value,
2704 Error **errp)
2705 {
2706 return object_parse_property_opt(opaque, name, value, "accel", errp);
2707 }
2708
2709 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2710 {
2711 bool *p_init_failed = opaque;
2712 const char *acc = qemu_opt_get(opts, "accel");
2713 AccelClass *ac = accel_find(acc);
2714 AccelState *accel;
2715 int ret;
2716
2717 if (!ac) {
2718 *p_init_failed = true;
2719 error_report("invalid accelerator %s", acc);
2720 return 0;
2721 }
2722 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2723 object_apply_compat_props(OBJECT(accel));
2724 qemu_opt_foreach(opts, accelerator_set_property,
2725 accel,
2726 &error_fatal);
2727
2728 ret = accel_init_machine(accel, current_machine);
2729 if (ret < 0) {
2730 *p_init_failed = true;
2731 error_report("failed to initialize %s: %s",
2732 acc, strerror(-ret));
2733 return 0;
2734 }
2735
2736 return 1;
2737 }
2738
2739 static void configure_accelerators(const char *progname)
2740 {
2741 const char *accel;
2742 bool init_failed = false;
2743
2744 qemu_opts_foreach(qemu_find_opts("icount"),
2745 do_configure_icount, NULL, &error_fatal);
2746
2747 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2748 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2749 char **accel_list, **tmp;
2750
2751 if (accel == NULL) {
2752 /* Select the default accelerator */
2753 bool have_tcg = accel_find("tcg");
2754 bool have_kvm = accel_find("kvm");
2755
2756 if (have_tcg && have_kvm) {
2757 if (g_str_has_suffix(progname, "kvm")) {
2758 /* If the program name ends with "kvm", we prefer KVM */
2759 accel = "kvm:tcg";
2760 } else {
2761 accel = "tcg:kvm";
2762 }
2763 } else if (have_kvm) {
2764 accel = "kvm";
2765 } else if (have_tcg) {
2766 accel = "tcg";
2767 } else {
2768 error_report("No accelerator selected and"
2769 " no default accelerator available");
2770 exit(1);
2771 }
2772 }
2773 accel_list = g_strsplit(accel, ":", 0);
2774
2775 for (tmp = accel_list; *tmp; tmp++) {
2776 /*
2777 * Filter invalid accelerators here, to prevent obscenities
2778 * such as "-machine accel=tcg,,thread=single".
2779 */
2780 if (accel_find(*tmp)) {
2781 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2782 } else {
2783 init_failed = true;
2784 error_report("invalid accelerator %s", *tmp);
2785 }
2786 }
2787 g_strfreev(accel_list);
2788 } else {
2789 if (accel != NULL) {
2790 error_report("The -accel and \"-machine accel=\" options are incompatible");
2791 exit(1);
2792 }
2793 }
2794
2795 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2796 do_configure_accelerator, &init_failed, &error_fatal)) {
2797 if (!init_failed) {
2798 error_report("no accelerator found");
2799 }
2800 exit(1);
2801 }
2802
2803 if (init_failed) {
2804 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2805 error_report("falling back to %s", ac->name);
2806 }
2807
2808 if (icount_enabled() && !tcg_enabled()) {
2809 error_report("-icount is not allowed with hardware virtualization");
2810 exit(1);
2811 }
2812 }
2813
2814 static void create_default_memdev(MachineState *ms, const char *path)
2815 {
2816 Object *obj;
2817 MachineClass *mc = MACHINE_GET_CLASS(ms);
2818
2819 obj = object_new(path ? TYPE_MEMORY_BACKEND_FILE : TYPE_MEMORY_BACKEND_RAM);
2820 if (path) {
2821 object_property_set_str(obj, "mem-path", path, &error_fatal);
2822 }
2823 object_property_set_int(obj, "size", ms->ram_size, &error_fatal);
2824 object_property_add_child(object_get_objects_root(), mc->default_ram_id,
2825 obj);
2826 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2827 object_property_set_bool(obj, "x-use-canonical-path-for-ramblock-id",
2828 false, &error_fatal);
2829 user_creatable_complete(USER_CREATABLE(obj), &error_fatal);
2830 object_unref(obj);
2831 object_property_set_str(OBJECT(ms), "memory-backend", mc->default_ram_id,
2832 &error_fatal);
2833 }
2834
2835 /*
2836 * Find a likely location for support files using the location of the binary.
2837 * When running from the build tree this will be "$bindir/pc-bios".
2838 * Otherwise, this is CONFIG_QEMU_DATADIR (possibly relocated).
2839 *
2840 * The caller must use g_free() to free the returned data when it is
2841 * no longer required.
2842 */
2843 static char *find_datadir(void)
2844 {
2845 g_autofree char *dir = NULL;
2846
2847 dir = g_build_filename(qemu_get_exec_dir(), "pc-bios", NULL);
2848 if (g_file_test(dir, G_FILE_TEST_IS_DIR)) {
2849 return g_steal_pointer(&dir);
2850 }
2851
2852 return get_relocated_path(CONFIG_QEMU_DATADIR);
2853 }
2854
2855 void qemu_init(int argc, char **argv, char **envp)
2856 {
2857 int i;
2858 int snapshot, linux_boot;
2859 const char *initrd_filename;
2860 const char *kernel_filename, *kernel_cmdline;
2861 const char *boot_order = NULL;
2862 const char *boot_once = NULL;
2863 DisplayState *ds;
2864 QemuOpts *opts, *machine_opts;
2865 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2866 QemuOptsList *olist;
2867 int optind;
2868 const char *optarg;
2869 const char *loadvm = NULL;
2870 MachineClass *machine_class;
2871 const char *cpu_option;
2872 const char *vga_model = NULL;
2873 const char *qtest_chrdev = NULL;
2874 const char *qtest_log = NULL;
2875 const char *incoming = NULL;
2876 bool userconfig = true;
2877 bool nographic = false;
2878 int display_remote = 0;
2879 const char *log_mask = NULL;
2880 const char *log_file = NULL;
2881 char *trace_file = NULL;
2882 ram_addr_t maxram_size;
2883 uint64_t ram_slots = 0;
2884 FILE *vmstate_dump_file = NULL;
2885 Error *main_loop_err = NULL;
2886 Error *err = NULL;
2887 bool list_data_dirs = false;
2888 char **dirs;
2889 const char *mem_path = NULL;
2890 bool have_custom_ram_size;
2891 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2892 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2893 int mem_prealloc = 0; /* force preallocation of physical target memory */
2894
2895 os_set_line_buffering();
2896
2897 error_init(argv[0]);
2898 module_call_init(MODULE_INIT_TRACE);
2899
2900 qemu_init_cpu_list();
2901 qemu_init_cpu_loop();
2902
2903 qemu_mutex_lock_iothread();
2904
2905 atexit(qemu_run_exit_notifiers);
2906 qemu_init_exec_dir(argv[0]);
2907
2908 module_call_init(MODULE_INIT_QOM);
2909 module_call_init(MODULE_INIT_MIGRATION);
2910
2911 qemu_add_opts(&qemu_drive_opts);
2912 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2913 qemu_add_drive_opts(&qemu_common_drive_opts);
2914 qemu_add_drive_opts(&qemu_drive_opts);
2915 qemu_add_drive_opts(&bdrv_runtime_opts);
2916 qemu_add_opts(&qemu_chardev_opts);
2917 qemu_add_opts(&qemu_device_opts);
2918 qemu_add_opts(&qemu_netdev_opts);
2919 qemu_add_opts(&qemu_nic_opts);
2920 qemu_add_opts(&qemu_net_opts);
2921 qemu_add_opts(&qemu_rtc_opts);
2922 qemu_add_opts(&qemu_global_opts);
2923 qemu_add_opts(&qemu_mon_opts);
2924 qemu_add_opts(&qemu_trace_opts);
2925 qemu_plugin_add_opts();
2926 qemu_add_opts(&qemu_option_rom_opts);
2927 qemu_add_opts(&qemu_machine_opts);
2928 qemu_add_opts(&qemu_accel_opts);
2929 qemu_add_opts(&qemu_mem_opts);
2930 qemu_add_opts(&qemu_smp_opts);
2931 qemu_add_opts(&qemu_boot_opts);
2932 qemu_add_opts(&qemu_add_fd_opts);
2933 qemu_add_opts(&qemu_object_opts);
2934 qemu_add_opts(&qemu_tpmdev_opts);
2935 qemu_add_opts(&qemu_realtime_opts);
2936 qemu_add_opts(&qemu_overcommit_opts);
2937 qemu_add_opts(&qemu_msg_opts);
2938 qemu_add_opts(&qemu_name_opts);
2939 qemu_add_opts(&qemu_numa_opts);
2940 qemu_add_opts(&qemu_icount_opts);
2941 qemu_add_opts(&qemu_semihosting_config_opts);
2942 qemu_add_opts(&qemu_fw_cfg_opts);
2943 module_call_init(MODULE_INIT_OPTS);
2944
2945 runstate_init();
2946 precopy_infrastructure_init();
2947 postcopy_infrastructure_init();
2948 monitor_init_globals();
2949
2950 if (qcrypto_init(&err) < 0) {
2951 error_reportf_err(err, "cannot initialize crypto: ");
2952 exit(1);
2953 }
2954
2955 QTAILQ_INIT(&vm_change_state_head);
2956 os_setup_early_signal_handling();
2957
2958 cpu_option = NULL;
2959 snapshot = 0;
2960
2961 nb_nics = 0;
2962
2963 bdrv_init_with_whitelist();
2964
2965 autostart = 1;
2966
2967 /* first pass of option parsing */
2968 optind = 1;
2969 while (optind < argc) {
2970 if (argv[optind][0] != '-') {
2971 /* disk image */
2972 optind++;
2973 } else {
2974 const QEMUOption *popt;
2975
2976 popt = lookup_opt(argc, argv, &optarg, &optind);
2977 switch (popt->index) {
2978 case QEMU_OPTION_nouserconfig:
2979 userconfig = false;
2980 break;
2981 }
2982 }
2983 }
2984
2985 if (userconfig) {
2986 if (qemu_read_default_config_file() < 0) {
2987 exit(1);
2988 }
2989 }
2990
2991 /* second pass of option parsing */
2992 optind = 1;
2993 for(;;) {
2994 if (optind >= argc)
2995 break;
2996 if (argv[optind][0] != '-') {
2997 loc_set_cmdline(argv, optind, 1);
2998 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2999 } else {
3000 const QEMUOption *popt;
3001
3002 popt = lookup_opt(argc, argv, &optarg, &optind);
3003 if (!(popt->arch_mask & arch_type)) {
3004 error_report("Option not supported for this target");
3005 exit(1);
3006 }
3007 switch(popt->index) {
3008 case QEMU_OPTION_cpu:
3009 /* hw initialization will check this */
3010 cpu_option = optarg;
3011 break;
3012 case QEMU_OPTION_hda:
3013 case QEMU_OPTION_hdb:
3014 case QEMU_OPTION_hdc:
3015 case QEMU_OPTION_hdd:
3016 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3017 HD_OPTS);
3018 break;
3019 case QEMU_OPTION_blockdev:
3020 {
3021 Visitor *v;
3022 BlockdevOptionsQueueEntry *bdo;
3023
3024 v = qobject_input_visitor_new_str(optarg, "driver",
3025 &error_fatal);
3026
3027 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3028 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3029 &error_fatal);
3030 visit_free(v);
3031 loc_save(&bdo->loc);
3032 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3033 break;
3034 }
3035 case QEMU_OPTION_drive:
3036 if (drive_def(optarg) == NULL) {
3037 exit(1);
3038 }
3039 break;
3040 case QEMU_OPTION_set:
3041 if (qemu_set_option(optarg) != 0)
3042 exit(1);
3043 break;
3044 case QEMU_OPTION_global:
3045 if (qemu_global_option(optarg) != 0)
3046 exit(1);
3047 break;
3048 case QEMU_OPTION_mtdblock:
3049 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3050 break;
3051 case QEMU_OPTION_sd:
3052 drive_add(IF_SD, -1, optarg, SD_OPTS);
3053 break;
3054 case QEMU_OPTION_pflash:
3055 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3056 break;
3057 case QEMU_OPTION_snapshot:
3058 {
3059 Error *blocker = NULL;
3060 snapshot = 1;
3061 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3062 "-snapshot");
3063 replay_add_blocker(blocker);
3064 }
3065 break;
3066 case QEMU_OPTION_numa:
3067 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3068 optarg, true);
3069 if (!opts) {
3070 exit(1);
3071 }
3072 break;
3073 case QEMU_OPTION_display:
3074 parse_display(optarg);
3075 break;
3076 case QEMU_OPTION_nographic:
3077 olist = qemu_find_opts("machine");
3078 qemu_opts_parse_noisily(olist, "graphics=off", false);
3079 nographic = true;
3080 dpy.type = DISPLAY_TYPE_NONE;
3081 break;
3082 case QEMU_OPTION_curses:
3083 #ifdef CONFIG_CURSES
3084 dpy.type = DISPLAY_TYPE_CURSES;
3085 #else
3086 error_report("curses or iconv support is disabled");
3087 exit(1);
3088 #endif
3089 break;
3090 case QEMU_OPTION_portrait:
3091 graphic_rotate = 90;
3092 break;
3093 case QEMU_OPTION_rotate:
3094 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3095 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3096 graphic_rotate != 180 && graphic_rotate != 270) {
3097 error_report("only 90, 180, 270 deg rotation is available");
3098 exit(1);
3099 }
3100 break;
3101 case QEMU_OPTION_kernel:
3102 qemu_opts_set(qemu_find_opts("machine"), NULL, "kernel", optarg,
3103 &error_abort);
3104 break;
3105 case QEMU_OPTION_initrd:
3106 qemu_opts_set(qemu_find_opts("machine"), NULL, "initrd", optarg,
3107 &error_abort);
3108 break;
3109 case QEMU_OPTION_append:
3110 qemu_opts_set(qemu_find_opts("machine"), NULL, "append", optarg,
3111 &error_abort);
3112 break;
3113 case QEMU_OPTION_dtb:
3114 qemu_opts_set(qemu_find_opts("machine"), NULL, "dtb", optarg,
3115 &error_abort);
3116 break;
3117 case QEMU_OPTION_cdrom:
3118 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3119 break;
3120 case QEMU_OPTION_boot:
3121 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3122 optarg, true);
3123 if (!opts) {
3124 exit(1);
3125 }
3126 break;
3127 case QEMU_OPTION_fda:
3128 case QEMU_OPTION_fdb:
3129 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3130 optarg, FD_OPTS);
3131 break;
3132 case QEMU_OPTION_no_fd_bootchk:
3133 fd_bootchk = 0;
3134 break;
3135 case QEMU_OPTION_netdev:
3136 default_net = 0;
3137 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3138 exit(1);
3139 }
3140 break;
3141 case QEMU_OPTION_nic:
3142 default_net = 0;
3143 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3144 exit(1);
3145 }
3146 break;
3147 case QEMU_OPTION_net:
3148 default_net = 0;
3149 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3150 exit(1);
3151 }
3152 break;
3153 #ifdef CONFIG_LIBISCSI
3154 case QEMU_OPTION_iscsi:
3155 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3156 optarg, false);
3157 if (!opts) {
3158 exit(1);
3159 }
3160 break;
3161 #endif
3162 case QEMU_OPTION_audio_help:
3163 audio_legacy_help();
3164 exit (0);
3165 break;
3166 case QEMU_OPTION_audiodev:
3167 audio_parse_option(optarg);
3168 break;
3169 case QEMU_OPTION_soundhw:
3170 select_soundhw (optarg);
3171 break;
3172 case QEMU_OPTION_h:
3173 help(0);
3174 break;
3175 case QEMU_OPTION_version:
3176 version();
3177 exit(0);
3178 break;
3179 case QEMU_OPTION_m:
3180 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3181 optarg, true);
3182 if (!opts) {
3183 exit(EXIT_FAILURE);
3184 }
3185 break;
3186 #ifdef CONFIG_TPM
3187 case QEMU_OPTION_tpmdev:
3188 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3189 exit(1);
3190 }
3191 break;
3192 #endif
3193 case QEMU_OPTION_mempath:
3194 mem_path = optarg;
3195 break;
3196 case QEMU_OPTION_mem_prealloc:
3197 mem_prealloc = 1;
3198 break;
3199 case QEMU_OPTION_d:
3200 log_mask = optarg;
3201 break;
3202 case QEMU_OPTION_D:
3203 log_file = optarg;
3204 break;
3205 case QEMU_OPTION_DFILTER:
3206 qemu_set_dfilter_ranges(optarg, &error_fatal);
3207 break;
3208 case QEMU_OPTION_seed:
3209 qemu_guest_random_seed_main(optarg, &error_fatal);
3210 break;
3211 case QEMU_OPTION_s:
3212 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3213 break;
3214 case QEMU_OPTION_gdb:
3215 add_device_config(DEV_GDB, optarg);
3216 break;
3217 case QEMU_OPTION_L:
3218 if (is_help_option(optarg)) {
3219 list_data_dirs = true;
3220 } else {
3221 qemu_add_data_dir(g_strdup(optarg));
3222 }
3223 break;
3224 case QEMU_OPTION_bios:
3225 qemu_opts_set(qemu_find_opts("machine"), NULL, "firmware", optarg,
3226 &error_abort);
3227 break;
3228 case QEMU_OPTION_singlestep:
3229 singlestep = 1;
3230 break;
3231 case QEMU_OPTION_S:
3232 autostart = 0;
3233 break;
3234 case QEMU_OPTION_k:
3235 keyboard_layout = optarg;
3236 break;
3237 case QEMU_OPTION_vga:
3238 vga_model = optarg;
3239 default_vga = 0;
3240 break;
3241 case QEMU_OPTION_g:
3242 {
3243 const char *p;
3244 int w, h, depth;
3245 p = optarg;
3246 w = strtol(p, (char **)&p, 10);
3247 if (w <= 0) {
3248 graphic_error:
3249 error_report("invalid resolution or depth");
3250 exit(1);
3251 }
3252 if (*p != 'x')
3253 goto graphic_error;
3254 p++;
3255 h = strtol(p, (char **)&p, 10);
3256 if (h <= 0)
3257 goto graphic_error;
3258 if (*p == 'x') {
3259 p++;
3260 depth = strtol(p, (char **)&p, 10);
3261 if (depth != 1 && depth != 2 && depth != 4 &&
3262 depth != 8 && depth != 15 && depth != 16 &&
3263 depth != 24 && depth != 32)
3264 goto graphic_error;
3265 } else if (*p == '\0') {
3266 depth = graphic_depth;
3267 } else {
3268 goto graphic_error;
3269 }
3270
3271 graphic_width = w;
3272 graphic_height = h;
3273 graphic_depth = depth;
3274 }
3275 break;
3276 case QEMU_OPTION_echr:
3277 {
3278 char *r;
3279 term_escape_char = strtol(optarg, &r, 0);
3280 if (r == optarg)
3281 printf("Bad argument to echr\n");
3282 break;
3283 }
3284 case QEMU_OPTION_monitor:
3285 default_monitor = 0;
3286 if (strncmp(optarg, "none", 4)) {
3287 monitor_parse(optarg, "readline", false);
3288 }
3289 break;
3290 case QEMU_OPTION_qmp:
3291 monitor_parse(optarg, "control", false);
3292 default_monitor = 0;
3293 break;
3294 case QEMU_OPTION_qmp_pretty:
3295 monitor_parse(optarg, "control", true);
3296 default_monitor = 0;
3297 break;
3298 case QEMU_OPTION_mon:
3299 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3300 true);
3301 if (!opts) {
3302 exit(1);
3303 }
3304 default_monitor = 0;
3305 break;
3306 case QEMU_OPTION_chardev:
3307 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3308 optarg, true);
3309 if (!opts) {
3310 exit(1);
3311 }
3312 break;
3313 case QEMU_OPTION_fsdev:
3314 olist = qemu_find_opts("fsdev");
3315 if (!olist) {
3316 error_report("fsdev support is disabled");
3317 exit(1);
3318 }
3319 opts = qemu_opts_parse_noisily(olist, optarg, true);
3320 if (!opts) {
3321 exit(1);
3322 }
3323 break;
3324 case QEMU_OPTION_virtfs: {
3325 QemuOpts *fsdev;
3326 QemuOpts *device;
3327 const char *writeout, *sock_fd, *socket, *path, *security_model,
3328 *multidevs;
3329
3330 olist = qemu_find_opts("virtfs");
3331 if (!olist) {
3332 error_report("virtfs support is disabled");
3333 exit(1);
3334 }
3335 opts = qemu_opts_parse_noisily(olist, optarg, true);
3336 if (!opts) {
3337 exit(1);
3338 }
3339
3340 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3341 qemu_opt_get(opts, "mount_tag") == NULL) {
3342 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3343 exit(1);
3344 }
3345 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3346 qemu_opts_id(opts) ?:
3347 qemu_opt_get(opts, "mount_tag"),
3348 1, NULL);
3349 if (!fsdev) {
3350 error_report("duplicate or invalid fsdev id: %s",
3351 qemu_opt_get(opts, "mount_tag"));
3352 exit(1);
3353 }
3354
3355 writeout = qemu_opt_get(opts, "writeout");
3356 if (writeout) {
3357 #ifdef CONFIG_SYNC_FILE_RANGE
3358 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3359 #else
3360 error_report("writeout=immediate not supported "
3361 "on this platform");
3362 exit(1);
3363 #endif
3364 }
3365 qemu_opt_set(fsdev, "fsdriver",
3366 qemu_opt_get(opts, "fsdriver"), &error_abort);
3367 path = qemu_opt_get(opts, "path");
3368 if (path) {
3369 qemu_opt_set(fsdev, "path", path, &error_abort);
3370 }
3371 security_model = qemu_opt_get(opts, "security_model");
3372 if (security_model) {
3373 qemu_opt_set(fsdev, "security_model", security_model,
3374 &error_abort);
3375 }
3376 socket = qemu_opt_get(opts, "socket");
3377 if (socket) {
3378 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3379 }
3380 sock_fd = qemu_opt_get(opts, "sock_fd");
3381 if (sock_fd) {
3382 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3383 }
3384
3385 qemu_opt_set_bool(fsdev, "readonly",
3386 qemu_opt_get_bool(opts, "readonly", 0),
3387 &error_abort);
3388 multidevs = qemu_opt_get(opts, "multidevs");
3389 if (multidevs) {
3390 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3391 }
3392 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3393 &error_abort);
3394 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3395 qemu_opt_set(device, "fsdev",
3396 qemu_opts_id(fsdev), &error_abort);
3397 qemu_opt_set(device, "mount_tag",
3398 qemu_opt_get(opts, "mount_tag"), &error_abort);
3399 break;
3400 }
3401 case QEMU_OPTION_serial:
3402 add_device_config(DEV_SERIAL, optarg);
3403 default_serial = 0;
3404 if (strncmp(optarg, "mon:", 4) == 0) {
3405 default_monitor = 0;
3406 }
3407 break;
3408 case QEMU_OPTION_watchdog:
3409 if (watchdog) {
3410 error_report("only one watchdog option may be given");
3411 exit(1);
3412 }
3413 watchdog = optarg;
3414 break;
3415 case QEMU_OPTION_watchdog_action:
3416 if (select_watchdog_action(optarg) == -1) {
3417 error_report("unknown -watchdog-action parameter");
3418 exit(1);
3419 }
3420 break;
3421 case QEMU_OPTION_parallel:
3422 add_device_config(DEV_PARALLEL, optarg);
3423 default_parallel = 0;
3424 if (strncmp(optarg, "mon:", 4) == 0) {
3425 default_monitor = 0;
3426 }
3427 break;
3428 case QEMU_OPTION_debugcon:
3429 add_device_config(DEV_DEBUGCON, optarg);
3430 break;
3431 case QEMU_OPTION_loadvm:
3432 loadvm = optarg;
3433 break;
3434 case QEMU_OPTION_full_screen:
3435 dpy.has_full_screen = true;
3436 dpy.full_screen = true;
3437 break;
3438 case QEMU_OPTION_alt_grab:
3439 alt_grab = 1;
3440 break;
3441 case QEMU_OPTION_ctrl_grab:
3442 ctrl_grab = 1;
3443 break;
3444 case QEMU_OPTION_no_quit:
3445 dpy.has_window_close = true;
3446 dpy.window_close = false;
3447 break;
3448 case QEMU_OPTION_sdl:
3449 #ifdef CONFIG_SDL
3450 dpy.type = DISPLAY_TYPE_SDL;
3451 break;
3452 #else
3453 error_report("SDL support is disabled");
3454 exit(1);
3455 #endif
3456 case QEMU_OPTION_pidfile:
3457 pid_file = optarg;
3458 break;
3459 case QEMU_OPTION_win2k_hack:
3460 win2k_install_hack = 1;
3461 break;
3462 case QEMU_OPTION_acpitable:
3463 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3464 optarg, true);
3465 if (!opts) {
3466 exit(1);
3467 }
3468 acpi_table_add(opts, &error_fatal);
3469 break;
3470 case QEMU_OPTION_smbios:
3471 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3472 optarg, false);
3473 if (!opts) {
3474 exit(1);
3475 }
3476 smbios_entry_add(opts, &error_fatal);
3477 break;
3478 case QEMU_OPTION_fwcfg:
3479 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3480 optarg, true);
3481 if (opts == NULL) {
3482 exit(1);
3483 }
3484 break;
3485 case QEMU_OPTION_preconfig:
3486 preconfig_exit_requested = false;
3487 break;
3488 case QEMU_OPTION_enable_kvm:
3489 olist = qemu_find_opts("machine");
3490 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3491 break;
3492 case QEMU_OPTION_M:
3493 case QEMU_OPTION_machine:
3494 olist = qemu_find_opts("machine");
3495 opts = qemu_opts_parse_noisily(olist, optarg, true);
3496 if (!opts) {
3497 exit(1);
3498 }
3499 break;
3500 case QEMU_OPTION_no_kvm:
3501 olist = qemu_find_opts("machine");
3502 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3503 break;
3504 case QEMU_OPTION_accel:
3505 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3506 optarg, true);
3507 optarg = qemu_opt_get(accel_opts, "accel");
3508 if (!optarg || is_help_option(optarg)) {
3509 printf("Accelerators supported in QEMU binary:\n");
3510 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3511 false);
3512 for (el = accel_list; el; el = el->next) {
3513 gchar *typename = g_strdup(object_class_get_name(
3514 OBJECT_CLASS(el->data)));
3515 /* omit qtest which is used for tests only */
3516 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3517 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3518 gchar **optname = g_strsplit(typename,
3519 ACCEL_CLASS_SUFFIX, 0);
3520 printf("%s\n", optname[0]);
3521 g_strfreev(optname);
3522 }
3523 g_free(typename);
3524 }
3525 g_slist_free(accel_list);
3526 exit(0);
3527 }
3528 break;
3529 case QEMU_OPTION_usb:
3530 olist = qemu_find_opts("machine");
3531 qemu_opts_parse_noisily(olist, "usb=on", false);
3532 break;
3533 case QEMU_OPTION_usbdevice:
3534 error_report("'-usbdevice' is deprecated, please use "
3535 "'-device usb-...' instead");
3536 olist = qemu_find_opts("machine");
3537 qemu_opts_parse_noisily(olist, "usb=on", false);
3538 add_device_config(DEV_USB, optarg);
3539 break;
3540 case QEMU_OPTION_device:
3541 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3542 optarg, true)) {
3543 exit(1);
3544 }
3545 break;
3546 case QEMU_OPTION_smp:
3547 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3548 optarg, true)) {
3549 exit(1);
3550 }
3551 break;
3552 case QEMU_OPTION_vnc:
3553 vnc_parse(optarg, &error_fatal);
3554 break;
3555 case QEMU_OPTION_no_acpi:
3556 olist = qemu_find_opts("machine");
3557 qemu_opts_parse_noisily(olist, "acpi=off", false);
3558 break;
3559 case QEMU_OPTION_no_hpet:
3560 no_hpet = 1;
3561 break;
3562 case QEMU_OPTION_no_reboot:
3563 no_reboot = 1;
3564 break;
3565 case QEMU_OPTION_no_shutdown:
3566 no_shutdown = 1;
3567 break;
3568 case QEMU_OPTION_show_cursor:
3569 warn_report("The -show-cursor option is deprecated. Please "
3570 "add show-cursor=on to your -display options.");
3571 warn_report("When using the default display you can use "
3572 "-display default,show-cursor=on");
3573 dpy.has_show_cursor = true;
3574 dpy.show_cursor = true;
3575 break;
3576 case QEMU_OPTION_uuid:
3577 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3578 error_report("failed to parse UUID string: wrong format");
3579 exit(1);
3580 }
3581 qemu_uuid_set = true;
3582 break;
3583 case QEMU_OPTION_option_rom:
3584 if (nb_option_roms >= MAX_OPTION_ROMS) {
3585 error_report("too many option ROMs");
3586 exit(1);
3587 }
3588 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3589 optarg, true);
3590 if (!opts) {
3591 exit(1);
3592 }
3593 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3594 option_rom[nb_option_roms].bootindex =
3595 qemu_opt_get_number(opts, "bootindex", -1);
3596 if (!option_rom[nb_option_roms].name) {
3597 error_report("Option ROM file is not specified");
3598 exit(1);
3599 }
3600 nb_option_roms++;
3601 break;
3602 case QEMU_OPTION_semihosting:
3603 qemu_semihosting_enable();
3604 break;
3605 case QEMU_OPTION_semihosting_config:
3606 if (qemu_semihosting_config_options(optarg) != 0) {
3607 exit(1);
3608 }
3609 break;
3610 case QEMU_OPTION_name:
3611 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3612 optarg, true);
3613 if (!opts) {
3614 exit(1);
3615 }
3616 /* Capture guest name if -msg guest-name is used later */
3617 error_guest_name = qemu_opt_get(opts, "guest");
3618 break;
3619 case QEMU_OPTION_prom_env:
3620 if (nb_prom_envs >= MAX_PROM_ENVS) {
3621 error_report("too many prom variables");
3622 exit(1);
3623 }
3624 prom_envs[nb_prom_envs] = optarg;
3625 nb_prom_envs++;
3626 break;
3627 case QEMU_OPTION_old_param:
3628 old_param = 1;
3629 break;
3630 case QEMU_OPTION_rtc:
3631 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3632 false);
3633 if (!opts) {
3634 exit(1);
3635 }
3636 break;
3637 case QEMU_OPTION_tb_size:
3638 #ifndef CONFIG_TCG
3639 error_report("TCG is disabled");
3640 exit(1);
3641 #endif
3642 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3643 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3644 break;
3645 case QEMU_OPTION_icount:
3646 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3647 optarg, true);
3648 if (!icount_opts) {
3649 exit(1);
3650 }
3651 break;
3652 case QEMU_OPTION_incoming:
3653 if (!incoming) {
3654 runstate_set(RUN_STATE_INMIGRATE);
3655 }
3656 incoming = optarg;
3657 break;
3658 case QEMU_OPTION_only_migratable:
3659 only_migratable = 1;
3660 break;
3661 case QEMU_OPTION_nodefaults:
3662 has_defaults = 0;
3663 break;
3664 case QEMU_OPTION_xen_domid:
3665 if (!(xen_available())) {
3666 error_report("Option not supported for this target");
3667 exit(1);
3668 }
3669 xen_domid = atoi(optarg);
3670 break;
3671 case QEMU_OPTION_xen_attach:
3672 if (!(xen_available())) {
3673 error_report("Option not supported for this target");
3674 exit(1);
3675 }
3676 xen_mode = XEN_ATTACH;
3677 break;
3678 case QEMU_OPTION_xen_domid_restrict:
3679 if (!(xen_available())) {
3680 error_report("Option not supported for this target");
3681 exit(1);
3682 }
3683 xen_domid_restrict = true;
3684 break;
3685 case QEMU_OPTION_trace:
3686 g_free(trace_file);
3687 trace_file = trace_opt_parse(optarg);
3688 break;
3689 case QEMU_OPTION_plugin:
3690 qemu_plugin_opt_parse(optarg, &plugin_list);
3691 break;
3692 case QEMU_OPTION_readconfig:
3693 {
3694 int ret = qemu_read_config_file(optarg);
3695 if (ret < 0) {
3696 error_report("read config %s: %s", optarg,
3697 strerror(-ret));
3698 exit(1);
3699 }
3700 break;
3701 }
3702 case QEMU_OPTION_spice:
3703 olist = qemu_find_opts("spice");
3704 if (!olist) {
3705 error_report("spice support is disabled");
3706 exit(1);
3707 }
3708 opts = qemu_opts_parse_noisily(olist, optarg, false);
3709 if (!opts) {
3710 exit(1);
3711 }
3712 display_remote++;
3713 break;
3714 case QEMU_OPTION_writeconfig:
3715 {
3716 FILE *fp;
3717 if (strcmp(optarg, "-") == 0) {
3718 fp = stdout;
3719 } else {
3720 fp = fopen(optarg, "w");
3721 if (fp == NULL) {
3722 error_report("open %s: %s", optarg,
3723 strerror(errno));
3724 exit(1);
3725 }
3726 }
3727 qemu_config_write(fp);
3728 if (fp != stdout) {
3729 fclose(fp);
3730 }
3731 break;
3732 }
3733 case QEMU_OPTION_qtest:
3734 qtest_chrdev = optarg;
3735 break;
3736 case QEMU_OPTION_qtest_log:
3737 qtest_log = optarg;
3738 break;
3739 case QEMU_OPTION_sandbox:
3740 olist = qemu_find_opts("sandbox");
3741 if (!olist) {
3742 #ifndef CONFIG_SECCOMP
3743 error_report("-sandbox support is not enabled "
3744 "in this QEMU binary");
3745 #endif
3746 exit(1);
3747 }
3748
3749 opts = qemu_opts_parse_noisily(olist, optarg, true);
3750 if (!opts) {
3751 exit(1);
3752 }
3753 break;
3754 case QEMU_OPTION_add_fd:
3755 #ifndef _WIN32
3756 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3757 optarg, false);
3758 if (!opts) {
3759 exit(1);
3760 }
3761 #else
3762 error_report("File descriptor passing is disabled on this "
3763 "platform");
3764 exit(1);
3765 #endif
3766 break;
3767 case QEMU_OPTION_object:
3768 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3769 optarg, true);
3770 if (!opts) {
3771 exit(1);
3772 }
3773 break;
3774 case QEMU_OPTION_realtime:
3775 warn_report("'-realtime mlock=...' is deprecated, please use "
3776 "'-overcommit mem-lock=...' instead");
3777 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3778 optarg, false);
3779 if (!opts) {
3780 exit(1);
3781 }
3782 /* Don't override the -overcommit option if set */
3783 enable_mlock = enable_mlock ||
3784 qemu_opt_get_bool(opts, "mlock", true);
3785 break;
3786 case QEMU_OPTION_overcommit:
3787 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3788 optarg, false);
3789 if (!opts) {
3790 exit(1);
3791 }
3792 /* Don't override the -realtime option if set */
3793 enable_mlock = enable_mlock ||
3794 qemu_opt_get_bool(opts, "mem-lock", false);
3795 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3796 break;
3797 case QEMU_OPTION_msg:
3798 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3799 false);
3800 if (!opts) {
3801 exit(1);
3802 }
3803 configure_msg(opts);
3804 break;
3805 case QEMU_OPTION_dump_vmstate:
3806 if (vmstate_dump_file) {
3807 error_report("only one '-dump-vmstate' "
3808 "option may be given");
3809 exit(1);
3810 }
3811 vmstate_dump_file = fopen(optarg, "w");
3812 if (vmstate_dump_file == NULL) {
3813 error_report("open %s: %s", optarg, strerror(errno));
3814 exit(1);
3815 }
3816 break;
3817 case QEMU_OPTION_enable_sync_profile:
3818 qsp_enable();
3819 break;
3820 case QEMU_OPTION_nouserconfig:
3821 /* Nothing to be parsed here. Especially, do not error out below. */
3822 break;
3823 default:
3824 if (os_parse_cmd_args(popt->index, optarg)) {
3825 error_report("Option not supported in this build");
3826 exit(1);
3827 }
3828 }
3829 }
3830 }
3831 /*
3832 * Clear error location left behind by the loop.
3833 * Best done right after the loop. Do not insert code here!
3834 */
3835 loc_set_none();
3836
3837 /*
3838 * Check for -cpu help and -device help before we call select_machine(),
3839 * which will return an error if the architecture has no default machine
3840 * type and the user did not specify one, so that the user doesn't need
3841 * to say '-cpu help -machine something'.
3842 */
3843 if (cpu_option && is_help_option(cpu_option)) {
3844 list_cpus(cpu_option);
3845 exit(0);
3846 }
3847
3848 if (qemu_opts_foreach(qemu_find_opts("device"),
3849 device_help_func, NULL, NULL)) {
3850 exit(0);
3851 }
3852
3853 user_register_global_props();
3854
3855 replay_configure(icount_opts);
3856
3857 if (incoming && !preconfig_exit_requested) {
3858 error_report("'preconfig' and 'incoming' options are "
3859 "mutually exclusive");
3860 exit(EXIT_FAILURE);
3861 }
3862
3863 configure_rtc(qemu_find_opts_singleton("rtc"));
3864
3865 machine_class = select_machine();
3866 object_set_machine_compat_props(machine_class->compat_props);
3867
3868 have_custom_ram_size = set_memory_options(&ram_slots, &maxram_size,
3869 machine_class);
3870
3871 os_daemonize();
3872 rcu_disable_atfork();
3873
3874 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3875 error_reportf_err(err, "cannot create PID file: ");
3876 exit(1);
3877 }
3878
3879 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3880 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3881
3882 if (qemu_init_main_loop(&main_loop_err)) {
3883 error_report_err(main_loop_err);
3884 exit(1);
3885 }
3886
3887 #ifdef CONFIG_SECCOMP
3888 olist = qemu_find_opts_err("sandbox", NULL);
3889 if (olist) {
3890 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3891 }
3892 #endif
3893
3894 qemu_opts_foreach(qemu_find_opts("name"),
3895 parse_name, NULL, &error_fatal);
3896
3897 #ifndef _WIN32
3898 qemu_opts_foreach(qemu_find_opts("add-fd"),
3899 parse_add_fd, NULL, &error_fatal);
3900
3901 qemu_opts_foreach(qemu_find_opts("add-fd"),
3902 cleanup_add_fd, NULL, &error_fatal);
3903 #endif
3904
3905 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3906 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3907 exit(0);
3908 }
3909 object_property_add_child(object_get_root(), "machine",
3910 OBJECT(current_machine));
3911 object_property_add_child(container_get(OBJECT(current_machine),
3912 "/unattached"),
3913 "sysbus", OBJECT(sysbus_get_default()));
3914
3915 if (machine_class->minimum_page_bits) {
3916 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3917 /* This would be a board error: specifying a minimum smaller than
3918 * a target's compile-time fixed setting.
3919 */
3920 g_assert_not_reached();
3921 }
3922 }
3923
3924 cpu_exec_init_all();
3925
3926 if (machine_class->hw_version) {
3927 qemu_set_hw_version(machine_class->hw_version);
3928 }
3929
3930 if (!trace_init_backends()) {
3931 exit(1);
3932 }
3933 trace_init_file(trace_file);
3934
3935 /* Open the logfile at this point and set the log mask if necessary.
3936 */
3937 qemu_set_log_filename(log_file, &error_fatal);
3938 if (log_mask) {
3939 int mask;
3940 mask = qemu_str_to_log_mask(log_mask);
3941 if (!mask) {
3942 qemu_print_log_usage(stdout);
3943 exit(1);
3944 }
3945 qemu_set_log(mask);
3946 } else {
3947 qemu_set_log(0);
3948 }
3949
3950 /* add configured firmware directories */
3951 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3952 for (i = 0; dirs[i] != NULL; i++) {
3953 qemu_add_data_dir(get_relocated_path(dirs[i]));
3954 }
3955 g_strfreev(dirs);
3956
3957 /* try to find datadir relative to the executable path */
3958 qemu_add_data_dir(find_datadir());
3959
3960 /* -L help lists the data directories and exits. */
3961 if (list_data_dirs) {
3962 for (i = 0; i < data_dir_idx; i++) {
3963 printf("%s\n", data_dir[i]);
3964 }
3965 exit(0);
3966 }
3967
3968 /* machine_class: default to UP */
3969 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3970 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3971 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3972
3973 /* default to machine_class->default_cpus */
3974 current_machine->smp.cpus = machine_class->default_cpus;
3975 current_machine->smp.max_cpus = machine_class->default_cpus;
3976 current_machine->smp.cores = 1;
3977 current_machine->smp.threads = 1;
3978 current_machine->smp.sockets = 1;
3979
3980 machine_class->smp_parse(current_machine,
3981 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3982
3983 /* sanity-check smp_cpus and max_cpus against machine_class */
3984 if (current_machine->smp.cpus < machine_class->min_cpus) {
3985 error_report("Invalid SMP CPUs %d. The min CPUs "
3986 "supported by machine '%s' is %d",
3987 current_machine->smp.cpus,
3988 machine_class->name, machine_class->min_cpus);
3989 exit(1);
3990 }
3991 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3992 error_report("Invalid SMP CPUs %d. The max CPUs "
3993 "supported by machine '%s' is %d",
3994 current_machine->smp.max_cpus,
3995 machine_class->name, machine_class->max_cpus);
3996 exit(1);
3997 }
3998
3999 if (mem_prealloc) {
4000 char *val;
4001
4002 val = g_strdup_printf("%d", current_machine->smp.cpus);
4003 object_register_sugar_prop("memory-backend", "prealloc-threads", val);
4004 g_free(val);
4005 object_register_sugar_prop("memory-backend", "prealloc", "on");
4006 }
4007
4008 /*
4009 * Get the default machine options from the machine if it is not already
4010 * specified either by the configuration file or by the command line.
4011 */
4012 if (machine_class->default_machine_opts) {
4013 qemu_opts_set_defaults(qemu_find_opts("machine"),
4014 machine_class->default_machine_opts, 0);
4015 }
4016
4017 /* process plugin before CPUs are created, but once -smp has been parsed */
4018 if (qemu_plugin_load_list(&plugin_list)) {
4019 exit(1);
4020 }
4021
4022 qemu_opts_foreach(qemu_find_opts("device"),
4023 default_driver_check, NULL, NULL);
4024 qemu_opts_foreach(qemu_find_opts("global"),
4025 default_driver_check, NULL, NULL);
4026
4027 if (!vga_model && !default_vga) {
4028 vga_interface_type = VGA_DEVICE;
4029 }
4030 if (!has_defaults || machine_class->no_serial) {
4031 default_serial = 0;
4032 }
4033 if (!has_defaults || machine_class->no_parallel) {
4034 default_parallel = 0;
4035 }
4036 if (!has_defaults || machine_class->no_floppy) {
4037 default_floppy = 0;
4038 }
4039 if (!has_defaults || machine_class->no_cdrom) {
4040 default_cdrom = 0;
4041 }
4042 if (!has_defaults || machine_class->no_sdcard) {
4043 default_sdcard = 0;
4044 }
4045 if (!has_defaults) {
4046 default_monitor = 0;
4047 default_net = 0;
4048 default_vga = 0;
4049 }
4050
4051 if (is_daemonized()) {
4052 if (!preconfig_exit_requested) {
4053 error_report("'preconfig' and 'daemonize' options are "
4054 "mutually exclusive");
4055 exit(EXIT_FAILURE);
4056 }
4057
4058 /* According to documentation and historically, -nographic redirects
4059 * serial port, parallel port and monitor to stdio, which does not work
4060 * with -daemonize. We can redirect these to null instead, but since
4061 * -nographic is legacy, let's just error out.
4062 * We disallow -nographic only if all other ports are not redirected
4063 * explicitly, to not break existing legacy setups which uses
4064 * -nographic _and_ redirects all ports explicitly - this is valid
4065 * usage, -nographic is just a no-op in this case.
4066 */
4067 if (nographic
4068 && (default_parallel || default_serial || default_monitor)) {
4069 error_report("-nographic cannot be used with -daemonize");
4070 exit(1);
4071 }
4072 #ifdef CONFIG_CURSES
4073 if (dpy.type == DISPLAY_TYPE_CURSES) {
4074 error_report("curses display cannot be used with -daemonize");
4075 exit(1);
4076 }
4077 #endif
4078 }
4079
4080 if (nographic) {
4081 if (default_parallel)
4082 add_device_config(DEV_PARALLEL, "null");
4083 if (default_serial && default_monitor) {
4084 add_device_config(DEV_SERIAL, "mon:stdio");
4085 } else {
4086 if (default_serial)
4087 add_device_config(DEV_SERIAL, "stdio");
4088 if (default_monitor)
4089 monitor_parse("stdio", "readline", false);
4090 }
4091 } else {
4092 if (default_serial)
4093 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4094 if (default_parallel)
4095 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4096 if (default_monitor)
4097 monitor_parse("vc:80Cx24C", "readline", false);
4098 }
4099
4100 #if defined(CONFIG_VNC)
4101 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4102 display_remote++;
4103 }
4104 #endif
4105 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4106 if (!qemu_display_find_default(&dpy)) {
4107 dpy.type = DISPLAY_TYPE_NONE;
4108 #if defined(CONFIG_VNC)
4109 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4110 #endif
4111 }
4112 }
4113 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4114 dpy.type = DISPLAY_TYPE_NONE;
4115 }
4116
4117 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4118 error_report("-alt-grab and -ctrl-grab are only valid "
4119 "for SDL, ignoring option");
4120 }
4121 if (dpy.has_window_close &&
4122 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4123 error_report("-no-quit is only valid for GTK and SDL, "
4124 "ignoring option");
4125 }
4126
4127 qemu_display_early_init(&dpy);
4128 qemu_console_early_init();
4129
4130 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4131 #if defined(CONFIG_OPENGL)
4132 error_report("OpenGL is not supported by the display");
4133 #else
4134 error_report("OpenGL support is disabled");
4135 #endif
4136 exit(1);
4137 }
4138
4139 page_size_init();
4140 socket_init();
4141
4142 qemu_opts_foreach(qemu_find_opts("object"),
4143 user_creatable_add_opts_foreach,
4144 object_create_initial, &error_fatal);
4145
4146 qemu_opts_foreach(qemu_find_opts("chardev"),
4147 chardev_init_func, NULL, &error_fatal);
4148
4149 #ifdef CONFIG_VIRTFS
4150 qemu_opts_foreach(qemu_find_opts("fsdev"),
4151 fsdev_init_func, NULL, &error_fatal);
4152 #endif
4153
4154 /* spice needs the timers to be initialized by this point */
4155 /* spice must initialize before audio as it changes the default auiodev */
4156 qemu_spice_init();
4157
4158 /*
4159 * Note: we need to create audio and block backends before
4160 * machine_set_property(), so machine properties can refer to
4161 * them.
4162 */
4163 configure_blockdev(&bdo_queue, machine_class, snapshot);
4164 audio_init_audiodevs();
4165
4166 machine_opts = qemu_get_machine_opts();
4167 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4168 &error_fatal);
4169 current_machine->ram_size = ram_size;
4170 current_machine->maxram_size = maxram_size;
4171 current_machine->ram_slots = ram_slots;
4172
4173 /*
4174 * Note: uses machine properties such as kernel-irqchip, must run
4175 * after machine_set_property().
4176 */
4177 configure_accelerators(argv[0]);
4178
4179 /*
4180 * Beware, QOM objects created before this point miss global and
4181 * compat properties.
4182 *
4183 * Global properties get set up by qdev_prop_register_global(),
4184 * called from user_register_global_props(), and certain option
4185 * desugaring. Also in CPU feature desugaring (buried in
4186 * parse_cpu_option()), which happens below this point, but may
4187 * only target the CPU type, which can only be created after
4188 * parse_cpu_option() returned the type.
4189 *
4190 * Machine compat properties: object_set_machine_compat_props().
4191 * Accelerator compat props: object_set_accelerator_compat_props(),
4192 * called from configure_accelerator().
4193 */
4194
4195 if (!qtest_enabled() && machine_class->deprecation_reason) {
4196 error_report("Machine type '%s' is deprecated: %s",
4197 machine_class->name, machine_class->deprecation_reason);
4198 }
4199
4200 /*
4201 * Note: creates a QOM object, must run only after global and
4202 * compat properties have been set up.
4203 */
4204 migration_object_init();
4205
4206 if (qtest_chrdev) {
4207 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4208 }
4209
4210 machine_opts = qemu_get_machine_opts();
4211 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4212 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4213 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4214 bios_name = qemu_opt_get(machine_opts, "firmware");
4215
4216 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4217 if (opts) {
4218 boot_order = qemu_opt_get(opts, "order");
4219 if (boot_order) {
4220 validate_bootdevices(boot_order, &error_fatal);
4221 }
4222
4223 boot_once = qemu_opt_get(opts, "once");
4224 if (boot_once) {
4225 validate_bootdevices(boot_once, &error_fatal);
4226 }
4227
4228 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4229 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4230 }
4231
4232 if (!boot_order) {
4233 boot_order = machine_class->default_boot_order;
4234 }
4235
4236 if (!kernel_cmdline) {
4237 kernel_cmdline = "";
4238 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4239 }
4240
4241 linux_boot = (kernel_filename != NULL);
4242
4243 if (!linux_boot && *kernel_cmdline != '\0') {
4244 error_report("-append only allowed with -kernel option");
4245 exit(1);
4246 }
4247
4248 if (!linux_boot && initrd_filename != NULL) {
4249 error_report("-initrd only allowed with -kernel option");
4250 exit(1);
4251 }
4252
4253 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4254 /* fall back to the -kernel/-append */
4255 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4256 }
4257
4258 /* initialize cpu timers and VCPU throttle modules */
4259 cpu_timers_init();
4260
4261 if (default_net) {
4262 QemuOptsList *net = qemu_find_opts("net");
4263 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4264 #ifdef CONFIG_SLIRP
4265 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4266 #endif
4267 }
4268
4269 if (net_init_clients(&err) < 0) {
4270 error_report_err(err);
4271 exit(1);
4272 }
4273
4274 qemu_opts_foreach(qemu_find_opts("object"),
4275 user_creatable_add_opts_foreach,
4276 object_create_delayed, &error_fatal);
4277
4278 if (tpm_init() < 0) {
4279 exit(1);
4280 }
4281
4282 blk_mig_init();
4283 ram_mig_init();
4284 dirty_bitmap_mig_init();
4285
4286 qemu_opts_foreach(qemu_find_opts("mon"),
4287 mon_init_func, NULL, &error_fatal);
4288
4289 /* connect semihosting console input if requested */
4290 qemu_semihosting_console_init();
4291
4292 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4293 exit(1);
4294 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4295 exit(1);
4296 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4297 exit(1);
4298
4299 /* now chardevs have been created we may have semihosting to connect */
4300 qemu_semihosting_connect_chardevs();
4301
4302 /* If no default VGA is requested, the default is "none". */
4303 if (default_vga) {
4304 vga_model = get_default_vga_model(machine_class);
4305 }
4306 if (vga_model) {
4307 select_vgahw(machine_class, vga_model);
4308 }
4309
4310 if (watchdog) {
4311 i = select_watchdog(watchdog);
4312 if (i > 0)
4313 exit (i == 1 ? 1 : 0);
4314 }
4315
4316 /* This checkpoint is required by replay to separate prior clock
4317 reading from the other reads, because timer polling functions query
4318 clock values from the log. */
4319 replay_checkpoint(CHECKPOINT_INIT);
4320 qdev_machine_init();
4321
4322 current_machine->boot_order = boot_order;
4323
4324 /* parse features once if machine provides default cpu_type */
4325 current_machine->cpu_type = machine_class->default_cpu_type;
4326 if (cpu_option) {
4327 current_machine->cpu_type = parse_cpu_option(cpu_option);
4328 }
4329
4330 if (current_machine->ram_memdev_id) {
4331 Object *backend;
4332 ram_addr_t backend_size;
4333
4334 backend = object_resolve_path_type(current_machine->ram_memdev_id,
4335 TYPE_MEMORY_BACKEND, NULL);
4336 if (!backend) {
4337 error_report("Memory backend '%s' not found",
4338 current_machine->ram_memdev_id);
4339 exit(EXIT_FAILURE);
4340 }
4341 backend_size = object_property_get_uint(backend, "size", &error_abort);
4342 if (have_custom_ram_size && backend_size != ram_size) {
4343 error_report("Size specified by -m option must match size of "
4344 "explicitly specified 'memory-backend' property");
4345 exit(EXIT_FAILURE);
4346 }
4347 if (mem_path) {
4348 error_report("'-mem-path' can't be used together with"
4349 "'-machine memory-backend'");
4350 exit(EXIT_FAILURE);
4351 }
4352 ram_size = backend_size;
4353 }
4354
4355 if (!xen_enabled()) {
4356 /* On 32-bit hosts, QEMU is limited by virtual address space */
4357 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4358 error_report("at most 2047 MB RAM can be simulated");
4359 exit(1);
4360 }
4361 }
4362
4363 parse_numa_opts(current_machine);
4364
4365 /* do monitor/qmp handling at preconfig state if requested */
4366 qemu_main_loop();
4367
4368 if (machine_class->default_ram_id && current_machine->ram_size &&
4369 numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
4370 create_default_memdev(current_machine, mem_path);
4371 }
4372
4373 /* from here on runstate is RUN_STATE_PRELAUNCH */
4374 machine_run_board_init(current_machine);
4375
4376 /*
4377 * TODO To drop support for deprecated bogus if=..., move
4378 * drive_check_orphaned() here, replacing this call. Also drop
4379 * its deprecation warning, along with DriveInfo member
4380 * @claimed_by_board.
4381 */
4382 drive_mark_claimed_by_board();
4383
4384 realtime_init();
4385
4386 soundhw_init();
4387
4388 if (hax_enabled()) {
4389 hax_sync_vcpus();
4390 }
4391
4392 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4393 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4394
4395 /* init USB devices */
4396 if (machine_usb(current_machine)) {
4397 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4398 exit(1);
4399 }
4400
4401 /* init generic devices */
4402 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4403 qemu_opts_foreach(qemu_find_opts("device"),
4404 device_init_func, NULL, &error_fatal);
4405
4406 cpu_synchronize_all_post_init();
4407
4408 rom_reset_order_override();
4409
4410 /* Did we create any drives that we failed to create a device for? */
4411 drive_check_orphaned();
4412
4413 /* Don't warn about the default network setup that you get if
4414 * no command line -net or -netdev options are specified. There
4415 * are two cases that we would otherwise complain about:
4416 * (1) board doesn't support a NIC but the implicit "-net nic"
4417 * requested one
4418 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4419 * sets up a nic that isn't connected to anything.
4420 */
4421 if (!default_net && (!qtest_enabled() || has_defaults)) {
4422 net_check_clients();
4423 }
4424
4425 if (boot_once) {
4426 qemu_boot_set(boot_once, &error_fatal);
4427 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4428 }
4429
4430 /* init local displays */
4431 ds = init_displaystate();
4432 qemu_display_init(ds, &dpy);
4433
4434 /* must be after terminal init, SDL library changes signal handlers */
4435 os_setup_signal_handling();
4436
4437 /* init remote displays */
4438 #ifdef CONFIG_VNC
4439 qemu_opts_foreach(qemu_find_opts("vnc"),
4440 vnc_init_func, NULL, &error_fatal);
4441 #endif
4442
4443 if (using_spice) {
4444 qemu_spice_display_init();
4445 }
4446
4447 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4448 exit(1);
4449 }
4450
4451 qdev_machine_creation_done();
4452
4453 /* TODO: once all bus devices are qdevified, this should be done
4454 * when bus is created by qdev.c */
4455 /*
4456 * TODO: If we had a main 'reset container' that the whole system
4457 * lived in, we could reset that using the multi-phase reset
4458 * APIs. For the moment, we just reset the sysbus, which will cause
4459 * all devices hanging off it (and all their child buses, recursively)
4460 * to be reset. Note that this will *not* reset any Device objects
4461 * which are not attached to some part of the qbus tree!
4462 */
4463 qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
4464 qemu_run_machine_init_done_notifiers();
4465
4466 if (rom_check_and_register_reset() != 0) {
4467 error_report("rom check and register reset failed");
4468 exit(1);
4469 }
4470
4471 replay_start();
4472
4473 /* This checkpoint is required by replay to separate prior clock
4474 reading from the other reads, because timer polling functions query
4475 clock values from the log. */
4476 replay_checkpoint(CHECKPOINT_RESET);
4477 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4478 register_global_state();
4479 if (loadvm) {
4480 Error *local_err = NULL;
4481 if (load_snapshot(loadvm, &local_err) < 0) {
4482 error_report_err(local_err);
4483 autostart = 0;
4484 exit(1);
4485 }
4486 }
4487 if (replay_mode != REPLAY_MODE_NONE) {
4488 replay_vmstate_init();
4489 }
4490
4491 qdev_prop_check_globals();
4492 if (vmstate_dump_file) {
4493 /* dump and exit */
4494 dump_vmstate_json_to_file(vmstate_dump_file);
4495 exit(0);
4496 }
4497
4498 if (incoming) {
4499 Error *local_err = NULL;
4500 qemu_start_incoming_migration(incoming, &local_err);
4501 if (local_err) {
4502 error_reportf_err(local_err, "-incoming %s: ", incoming);
4503 exit(1);
4504 }
4505 } else if (autostart) {
4506 vm_start();
4507 }
4508
4509 accel_setup_post(current_machine);
4510 os_setup_post();
4511
4512 return;
4513 }
4514
4515 void qemu_cleanup(void)
4516 {
4517 gdbserver_cleanup();
4518
4519 /*
4520 * cleaning up the migration object cancels any existing migration
4521 * try to do this early so that it also stops using devices.
4522 */
4523 migration_shutdown();
4524
4525 /*
4526 * We must cancel all block jobs while the block layer is drained,
4527 * or cancelling will be affected by throttling and thus may block
4528 * for an extended period of time.
4529 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4530 * it in the drained section.
4531 * We do not need to end this section, because we do not want any
4532 * requests happening from here on anyway.
4533 */
4534 bdrv_drain_all_begin();
4535
4536 /* No more vcpu or device emulation activity beyond this point */
4537 vm_shutdown();
4538 replay_finish();
4539
4540 job_cancel_sync_all();
4541 bdrv_close_all();
4542
4543 res_free();
4544
4545 /* vhost-user must be cleaned up before chardevs. */
4546 tpm_cleanup();
4547 net_cleanup();
4548 audio_cleanup();
4549 monitor_cleanup();
4550 qemu_chr_cleanup();
4551 user_creatable_cleanup();
4552 /* TODO: unref root container, check all devices are ok */
4553 }
AR7 emulation for QEMU