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util/qemu-error: prepend guest name to error message to identify affected VM owner
[qemu/ar7.git] / softmmu / vl.c
bloba7a2e9e44a7fe79b70924cd802665b6f42ea095b
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 "migration/colo.h"
78 #include "migration/postcopy-ram.h"
79 #include "sysemu/kvm.h"
80 #include "sysemu/hax.h"
81 #include "qapi/qobject-input-visitor.h"
82 #include "qemu/option.h"
83 #include "qemu/config-file.h"
84 #include "qemu-options.h"
85 #include "qemu/main-loop.h"
86 #ifdef CONFIG_VIRTFS
87 #include "fsdev/qemu-fsdev.h"
88 #endif
89 #include "sysemu/qtest.h"
90
91 #include "disas/disas.h"
92
93 #include "trace-root.h"
94 #include "trace/control.h"
95 #include "qemu/plugin.h"
96 #include "qemu/queue.h"
97 #include "sysemu/arch_init.h"
98
99 #include "ui/qemu-spice.h"
100 #include "qapi/string-input-visitor.h"
101 #include "qapi/opts-visitor.h"
102 #include "qapi/clone-visitor.h"
103 #include "qom/object_interfaces.h"
104 #include "hw/semihosting/semihost.h"
105 #include "crypto/init.h"
106 #include "sysemu/replay.h"
107 #include "qapi/qapi-events-run-state.h"
108 #include "qapi/qapi-visit-block-core.h"
109 #include "qapi/qapi-visit-ui.h"
110 #include "qapi/qapi-commands-block-core.h"
111 #include "qapi/qapi-commands-run-state.h"
112 #include "qapi/qapi-commands-ui.h"
113 #include "qapi/qmp/qerror.h"
114 #include "sysemu/iothread.h"
115 #include "qemu/guest-random.h"
116
117 #define MAX_VIRTIO_CONSOLES 1
118
119 static const char *data_dir[16];
120 static int data_dir_idx;
121 const char *bios_name = NULL;
122 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
123 int display_opengl;
124 const char* keyboard_layout = NULL;
125 ram_addr_t ram_size;
126 bool enable_mlock = false;
127 bool enable_cpu_pm = false;
128 int nb_nics;
129 NICInfo nd_table[MAX_NICS];
130 int autostart;
131 static enum {
132 RTC_BASE_UTC,
133 RTC_BASE_LOCALTIME,
134 RTC_BASE_DATETIME,
135 } rtc_base_type = RTC_BASE_UTC;
136 static time_t rtc_ref_start_datetime;
137 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
138 static int rtc_host_datetime_offset = -1; /* valid & used only with
139 RTC_BASE_DATETIME */
140 QEMUClockType rtc_clock;
141 int vga_interface_type = VGA_NONE;
142 static DisplayOptions dpy;
143 static int num_serial_hds;
144 static Chardev **serial_hds;
145 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
146 int win2k_install_hack = 0;
147 int singlestep = 0;
148 int no_hpet = 0;
149 int fd_bootchk = 1;
150 static int no_reboot;
151 int no_shutdown = 0;
152 int graphic_rotate = 0;
153 const char *watchdog;
154 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
155 int nb_option_roms;
156 int old_param = 0;
157 const char *qemu_name;
158 int alt_grab = 0;
159 int ctrl_grab = 0;
160 unsigned int nb_prom_envs = 0;
161 const char *prom_envs[MAX_PROM_ENVS];
162 int boot_menu;
163 bool boot_strict;
164 uint8_t *boot_splash_filedata;
165 int only_migratable; /* turn it off unless user states otherwise */
166 bool wakeup_suspend_enabled;
167
168 int icount_align_option;
169
170 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
171 * little-endian "wire format" described in the SMBIOS 2.6 specification.
172 */
173 QemuUUID qemu_uuid;
174 bool qemu_uuid_set;
175
176 static NotifierList exit_notifiers =
177 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
178
179 static NotifierList machine_init_done_notifiers =
180 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
181
182 uint32_t xen_domid;
183 enum xen_mode xen_mode = XEN_EMULATE;
184 bool xen_domid_restrict;
185
186 static int has_defaults = 1;
187 static int default_serial = 1;
188 static int default_parallel = 1;
189 static int default_monitor = 1;
190 static int default_floppy = 1;
191 static int default_cdrom = 1;
192 static int default_sdcard = 1;
193 static int default_vga = 1;
194 static int default_net = 1;
195
196 static struct {
197 const char *driver;
198 int *flag;
199 } default_list[] = {
200 { .driver = "isa-serial", .flag = &default_serial },
201 { .driver = "isa-parallel", .flag = &default_parallel },
202 { .driver = "isa-fdc", .flag = &default_floppy },
203 { .driver = "floppy", .flag = &default_floppy },
204 { .driver = "ide-cd", .flag = &default_cdrom },
205 { .driver = "ide-hd", .flag = &default_cdrom },
206 { .driver = "ide-drive", .flag = &default_cdrom },
207 { .driver = "scsi-cd", .flag = &default_cdrom },
208 { .driver = "scsi-hd", .flag = &default_cdrom },
209 { .driver = "VGA", .flag = &default_vga },
210 { .driver = "isa-vga", .flag = &default_vga },
211 { .driver = "cirrus-vga", .flag = &default_vga },
212 { .driver = "isa-cirrus-vga", .flag = &default_vga },
213 { .driver = "vmware-svga", .flag = &default_vga },
214 { .driver = "qxl-vga", .flag = &default_vga },
215 { .driver = "virtio-vga", .flag = &default_vga },
216 { .driver = "ati-vga", .flag = &default_vga },
217 { .driver = "vhost-user-vga", .flag = &default_vga },
218 };
219
220 static QemuOptsList qemu_rtc_opts = {
221 .name = "rtc",
222 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
223 .merge_lists = true,
224 .desc = {
225 {
226 .name = "base",
227 .type = QEMU_OPT_STRING,
228 },{
229 .name = "clock",
230 .type = QEMU_OPT_STRING,
231 },{
232 .name = "driftfix",
233 .type = QEMU_OPT_STRING,
234 },
235 { /* end of list */ }
236 },
237 };
238
239 static QemuOptsList qemu_option_rom_opts = {
240 .name = "option-rom",
241 .implied_opt_name = "romfile",
242 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
243 .desc = {
244 {
245 .name = "bootindex",
246 .type = QEMU_OPT_NUMBER,
247 }, {
248 .name = "romfile",
249 .type = QEMU_OPT_STRING,
250 },
251 { /* end of list */ }
252 },
253 };
254
255 static QemuOptsList qemu_machine_opts = {
256 .name = "machine",
257 .implied_opt_name = "type",
258 .merge_lists = true,
259 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
260 .desc = {
261 /*
262 * no elements => accept any
263 * sanity checking will happen later
264 * when setting machine properties
265 */
266 { }
267 },
268 };
269
270 static QemuOptsList qemu_accel_opts = {
271 .name = "accel",
272 .implied_opt_name = "accel",
273 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
274 .desc = {
275 /*
276 * no elements => accept any
277 * sanity checking will happen later
278 * when setting accelerator properties
279 */
280 { }
281 },
282 };
283
284 static QemuOptsList qemu_boot_opts = {
285 .name = "boot-opts",
286 .implied_opt_name = "order",
287 .merge_lists = true,
288 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
289 .desc = {
290 {
291 .name = "order",
292 .type = QEMU_OPT_STRING,
293 }, {
294 .name = "once",
295 .type = QEMU_OPT_STRING,
296 }, {
297 .name = "menu",
298 .type = QEMU_OPT_BOOL,
299 }, {
300 .name = "splash",
301 .type = QEMU_OPT_STRING,
302 }, {
303 .name = "splash-time",
304 .type = QEMU_OPT_NUMBER,
305 }, {
306 .name = "reboot-timeout",
307 .type = QEMU_OPT_NUMBER,
308 }, {
309 .name = "strict",
310 .type = QEMU_OPT_BOOL,
311 },
312 { /*End of list */ }
313 },
314 };
315
316 static QemuOptsList qemu_add_fd_opts = {
317 .name = "add-fd",
318 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
319 .desc = {
320 {
321 .name = "fd",
322 .type = QEMU_OPT_NUMBER,
323 .help = "file descriptor of which a duplicate is added to fd set",
324 },{
325 .name = "set",
326 .type = QEMU_OPT_NUMBER,
327 .help = "ID of the fd set to add fd to",
328 },{
329 .name = "opaque",
330 .type = QEMU_OPT_STRING,
331 .help = "free-form string used to describe fd",
332 },
333 { /* end of list */ }
334 },
335 };
336
337 static QemuOptsList qemu_object_opts = {
338 .name = "object",
339 .implied_opt_name = "qom-type",
340 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
341 .desc = {
342 { }
343 },
344 };
345
346 static QemuOptsList qemu_tpmdev_opts = {
347 .name = "tpmdev",
348 .implied_opt_name = "type",
349 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
350 .desc = {
351 /* options are defined in the TPM backends */
352 { /* end of list */ }
353 },
354 };
355
356 static QemuOptsList qemu_realtime_opts = {
357 .name = "realtime",
358 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
359 .desc = {
360 {
361 .name = "mlock",
362 .type = QEMU_OPT_BOOL,
363 },
364 { /* end of list */ }
365 },
366 };
367
368 static QemuOptsList qemu_overcommit_opts = {
369 .name = "overcommit",
370 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
371 .desc = {
372 {
373 .name = "mem-lock",
374 .type = QEMU_OPT_BOOL,
375 },
376 {
377 .name = "cpu-pm",
378 .type = QEMU_OPT_BOOL,
379 },
380 { /* end of list */ }
381 },
382 };
383
384 static QemuOptsList qemu_msg_opts = {
385 .name = "msg",
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
387 .desc = {
388 {
389 .name = "timestamp",
390 .type = QEMU_OPT_BOOL,
391 },
392 {
393 .name = "guest-name",
394 .type = QEMU_OPT_BOOL,
395 .help = "Prepends guest name for error messages but only if "
396 "-name guest is set otherwise option is ignored\n",
397 },
398 { /* end of list */ }
399 },
400 };
401
402 static QemuOptsList qemu_name_opts = {
403 .name = "name",
404 .implied_opt_name = "guest",
405 .merge_lists = true,
406 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
407 .desc = {
408 {
409 .name = "guest",
410 .type = QEMU_OPT_STRING,
411 .help = "Sets the name of the guest.\n"
412 "This name will be displayed in the SDL window caption.\n"
413 "The name will also be used for the VNC server",
414 }, {
415 .name = "process",
416 .type = QEMU_OPT_STRING,
417 .help = "Sets the name of the QEMU process, as shown in top etc",
418 }, {
419 .name = "debug-threads",
420 .type = QEMU_OPT_BOOL,
421 .help = "When enabled, name the individual threads; defaults off.\n"
422 "NOTE: The thread names are for debugging and not a\n"
423 "stable API.",
424 },
425 { /* End of list */ }
426 },
427 };
428
429 static QemuOptsList qemu_mem_opts = {
430 .name = "memory",
431 .implied_opt_name = "size",
432 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
433 .merge_lists = true,
434 .desc = {
435 {
436 .name = "size",
437 .type = QEMU_OPT_SIZE,
438 },
439 {
440 .name = "slots",
441 .type = QEMU_OPT_NUMBER,
442 },
443 {
444 .name = "maxmem",
445 .type = QEMU_OPT_SIZE,
446 },
447 { /* end of list */ }
448 },
449 };
450
451 static QemuOptsList qemu_icount_opts = {
452 .name = "icount",
453 .implied_opt_name = "shift",
454 .merge_lists = true,
455 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
456 .desc = {
457 {
458 .name = "shift",
459 .type = QEMU_OPT_STRING,
460 }, {
461 .name = "align",
462 .type = QEMU_OPT_BOOL,
463 }, {
464 .name = "sleep",
465 .type = QEMU_OPT_BOOL,
466 }, {
467 .name = "rr",
468 .type = QEMU_OPT_STRING,
469 }, {
470 .name = "rrfile",
471 .type = QEMU_OPT_STRING,
472 }, {
473 .name = "rrsnapshot",
474 .type = QEMU_OPT_STRING,
475 },
476 { /* end of list */ }
477 },
478 };
479
480 static QemuOptsList qemu_fw_cfg_opts = {
481 .name = "fw_cfg",
482 .implied_opt_name = "name",
483 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
484 .desc = {
485 {
486 .name = "name",
487 .type = QEMU_OPT_STRING,
488 .help = "Sets the fw_cfg name of the blob to be inserted",
489 }, {
490 .name = "file",
491 .type = QEMU_OPT_STRING,
492 .help = "Sets the name of the file from which "
493 "the fw_cfg blob will be loaded",
494 }, {
495 .name = "string",
496 .type = QEMU_OPT_STRING,
497 .help = "Sets content of the blob to be inserted from a string",
498 }, {
499 .name = "gen_id",
500 .type = QEMU_OPT_STRING,
501 .help = "Sets id of the object generating the fw_cfg blob "
502 "to be inserted",
503 },
504 { /* end of list */ }
505 },
506 };
507
508 /**
509 * Get machine options
510 *
511 * Returns: machine options (never null).
512 */
513 QemuOpts *qemu_get_machine_opts(void)
514 {
515 return qemu_find_opts_singleton("machine");
516 }
517
518 const char *qemu_get_vm_name(void)
519 {
520 return qemu_name;
521 }
522
523 static void res_free(void)
524 {
525 g_free(boot_splash_filedata);
526 boot_splash_filedata = NULL;
527 }
528
529 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
530 {
531 const char *driver = qemu_opt_get(opts, "driver");
532 int i;
533
534 if (!driver)
535 return 0;
536 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
537 if (strcmp(default_list[i].driver, driver) != 0)
538 continue;
539 *(default_list[i].flag) = 0;
540 }
541 return 0;
542 }
543
544 /***********************************************************/
545 /* QEMU state */
546
547 static RunState current_run_state = RUN_STATE_PRECONFIG;
548
549 /* We use RUN_STATE__MAX but any invalid value will do */
550 static RunState vmstop_requested = RUN_STATE__MAX;
551 static QemuMutex vmstop_lock;
552
553 typedef struct {
554 RunState from;
555 RunState to;
556 } RunStateTransition;
557
558 static const RunStateTransition runstate_transitions_def[] = {
559 /* from -> to */
560 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
561 /* Early switch to inmigrate state to allow -incoming CLI option work
562 * as it used to. TODO: delay actual switching to inmigrate state to
563 * the point after machine is built and remove this hack.
564 */
565 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
566
567 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
568 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
569 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
570
571 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
572 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
573 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
574 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
575 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
576 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
577 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
578 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
579 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
580 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
581 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
582 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
583
584 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
585 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
586 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
587
588 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
589 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
590 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
591
592 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
593 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
594 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
595 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
596 { RUN_STATE_PAUSED, RUN_STATE_COLO},
597
598 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
599 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
600 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
601
602 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
603 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
604 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
605
606 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
607 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
608 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
609 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
610 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
611
612 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
613 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
614
615 { RUN_STATE_COLO, RUN_STATE_RUNNING },
616
617 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
618 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
619 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
620 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
621 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
623 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
624 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
625 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
626 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
627 { RUN_STATE_RUNNING, RUN_STATE_COLO},
628
629 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
630
631 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
632 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
634
635 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
636 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
637 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
638 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
640 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
641
642 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
643 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
645 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
646
647 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
648 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
649 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
650
651 { RUN_STATE__MAX, RUN_STATE__MAX },
652 };
653
654 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
655
656 bool runstate_check(RunState state)
657 {
658 return current_run_state == state;
659 }
660
661 bool runstate_store(char *str, size_t size)
662 {
663 const char *state = RunState_str(current_run_state);
664 size_t len = strlen(state) + 1;
665
666 if (len > size) {
667 return false;
668 }
669 memcpy(str, state, len);
670 return true;
671 }
672
673 static void runstate_init(void)
674 {
675 const RunStateTransition *p;
676
677 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
678 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
679 runstate_valid_transitions[p->from][p->to] = true;
680 }
681
682 qemu_mutex_init(&vmstop_lock);
683 }
684
685 /* This function will abort() on invalid state transitions */
686 void runstate_set(RunState new_state)
687 {
688 assert(new_state < RUN_STATE__MAX);
689
690 trace_runstate_set(current_run_state, RunState_str(current_run_state),
691 new_state, RunState_str(new_state));
692
693 if (current_run_state == new_state) {
694 return;
695 }
696
697 if (!runstate_valid_transitions[current_run_state][new_state]) {
698 error_report("invalid runstate transition: '%s' -> '%s'",
699 RunState_str(current_run_state),
700 RunState_str(new_state));
701 abort();
702 }
703
704 current_run_state = new_state;
705 }
706
707 int runstate_is_running(void)
708 {
709 return runstate_check(RUN_STATE_RUNNING);
710 }
711
712 bool runstate_needs_reset(void)
713 {
714 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
715 runstate_check(RUN_STATE_SHUTDOWN);
716 }
717
718 StatusInfo *qmp_query_status(Error **errp)
719 {
720 StatusInfo *info = g_malloc0(sizeof(*info));
721
722 info->running = runstate_is_running();
723 info->singlestep = singlestep;
724 info->status = current_run_state;
725
726 return info;
727 }
728
729 bool qemu_vmstop_requested(RunState *r)
730 {
731 qemu_mutex_lock(&vmstop_lock);
732 *r = vmstop_requested;
733 vmstop_requested = RUN_STATE__MAX;
734 qemu_mutex_unlock(&vmstop_lock);
735 return *r < RUN_STATE__MAX;
736 }
737
738 void qemu_system_vmstop_request_prepare(void)
739 {
740 qemu_mutex_lock(&vmstop_lock);
741 }
742
743 void qemu_system_vmstop_request(RunState state)
744 {
745 vmstop_requested = state;
746 qemu_mutex_unlock(&vmstop_lock);
747 qemu_notify_event();
748 }
749
750 /***********************************************************/
751 /* RTC reference time/date access */
752 static time_t qemu_ref_timedate(QEMUClockType clock)
753 {
754 time_t value = qemu_clock_get_ms(clock) / 1000;
755 switch (clock) {
756 case QEMU_CLOCK_REALTIME:
757 value -= rtc_realtime_clock_offset;
758 /* fall through */
759 case QEMU_CLOCK_VIRTUAL:
760 value += rtc_ref_start_datetime;
761 break;
762 case QEMU_CLOCK_HOST:
763 if (rtc_base_type == RTC_BASE_DATETIME) {
764 value -= rtc_host_datetime_offset;
765 }
766 break;
767 default:
768 assert(0);
769 }
770 return value;
771 }
772
773 void qemu_get_timedate(struct tm *tm, int offset)
774 {
775 time_t ti = qemu_ref_timedate(rtc_clock);
776
777 ti += offset;
778
779 switch (rtc_base_type) {
780 case RTC_BASE_DATETIME:
781 case RTC_BASE_UTC:
782 gmtime_r(&ti, tm);
783 break;
784 case RTC_BASE_LOCALTIME:
785 localtime_r(&ti, tm);
786 break;
787 }
788 }
789
790 int qemu_timedate_diff(struct tm *tm)
791 {
792 time_t seconds;
793
794 switch (rtc_base_type) {
795 case RTC_BASE_DATETIME:
796 case RTC_BASE_UTC:
797 seconds = mktimegm(tm);
798 break;
799 case RTC_BASE_LOCALTIME:
800 {
801 struct tm tmp = *tm;
802 tmp.tm_isdst = -1; /* use timezone to figure it out */
803 seconds = mktime(&tmp);
804 break;
805 }
806 default:
807 abort();
808 }
809
810 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
811 }
812
813 static void configure_rtc_base_datetime(const char *startdate)
814 {
815 time_t rtc_start_datetime;
816 struct tm tm;
817
818 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
819 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
820 /* OK */
821 } else if (sscanf(startdate, "%d-%d-%d",
822 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
823 tm.tm_hour = 0;
824 tm.tm_min = 0;
825 tm.tm_sec = 0;
826 } else {
827 goto date_fail;
828 }
829 tm.tm_year -= 1900;
830 tm.tm_mon--;
831 rtc_start_datetime = mktimegm(&tm);
832 if (rtc_start_datetime == -1) {
833 date_fail:
834 error_report("invalid datetime format");
835 error_printf("valid formats: "
836 "'2006-06-17T16:01:21' or '2006-06-17'\n");
837 exit(1);
838 }
839 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
840 rtc_ref_start_datetime = rtc_start_datetime;
841 }
842
843 static void configure_rtc(QemuOpts *opts)
844 {
845 const char *value;
846
847 /* Set defaults */
848 rtc_clock = QEMU_CLOCK_HOST;
849 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
850 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
851
852 value = qemu_opt_get(opts, "base");
853 if (value) {
854 if (!strcmp(value, "utc")) {
855 rtc_base_type = RTC_BASE_UTC;
856 } else if (!strcmp(value, "localtime")) {
857 Error *blocker = NULL;
858 rtc_base_type = RTC_BASE_LOCALTIME;
859 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
860 "-rtc base=localtime");
861 replay_add_blocker(blocker);
862 } else {
863 rtc_base_type = RTC_BASE_DATETIME;
864 configure_rtc_base_datetime(value);
865 }
866 }
867 value = qemu_opt_get(opts, "clock");
868 if (value) {
869 if (!strcmp(value, "host")) {
870 rtc_clock = QEMU_CLOCK_HOST;
871 } else if (!strcmp(value, "rt")) {
872 rtc_clock = QEMU_CLOCK_REALTIME;
873 } else if (!strcmp(value, "vm")) {
874 rtc_clock = QEMU_CLOCK_VIRTUAL;
875 } else {
876 error_report("invalid option value '%s'", value);
877 exit(1);
878 }
879 }
880 value = qemu_opt_get(opts, "driftfix");
881 if (value) {
882 if (!strcmp(value, "slew")) {
883 object_register_sugar_prop("mc146818rtc",
884 "lost_tick_policy",
885 "slew");
886 } else if (!strcmp(value, "none")) {
887 /* discard is default */
888 } else {
889 error_report("invalid option value '%s'", value);
890 exit(1);
891 }
892 }
893 }
894
895 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
896 {
897 const char *proc_name;
898
899 if (qemu_opt_get(opts, "debug-threads")) {
900 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
901 }
902 qemu_name = qemu_opt_get(opts, "guest");
903
904 proc_name = qemu_opt_get(opts, "process");
905 if (proc_name) {
906 os_set_proc_name(proc_name);
907 }
908
909 return 0;
910 }
911
912 bool defaults_enabled(void)
913 {
914 return has_defaults;
915 }
916
917 #ifndef _WIN32
918 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
919 {
920 int fd, dupfd, flags;
921 int64_t fdset_id;
922 const char *fd_opaque = NULL;
923 AddfdInfo *fdinfo;
924
925 fd = qemu_opt_get_number(opts, "fd", -1);
926 fdset_id = qemu_opt_get_number(opts, "set", -1);
927 fd_opaque = qemu_opt_get(opts, "opaque");
928
929 if (fd < 0) {
930 error_setg(errp, "fd option is required and must be non-negative");
931 return -1;
932 }
933
934 if (fd <= STDERR_FILENO) {
935 error_setg(errp, "fd cannot be a standard I/O stream");
936 return -1;
937 }
938
939 /*
940 * All fds inherited across exec() necessarily have FD_CLOEXEC
941 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
942 */
943 flags = fcntl(fd, F_GETFD);
944 if (flags == -1 || (flags & FD_CLOEXEC)) {
945 error_setg(errp, "fd is not valid or already in use");
946 return -1;
947 }
948
949 if (fdset_id < 0) {
950 error_setg(errp, "set option is required and must be non-negative");
951 return -1;
952 }
953
954 #ifdef F_DUPFD_CLOEXEC
955 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
956 #else
957 dupfd = dup(fd);
958 if (dupfd != -1) {
959 qemu_set_cloexec(dupfd);
960 }
961 #endif
962 if (dupfd == -1) {
963 error_setg(errp, "error duplicating fd: %s", strerror(errno));
964 return -1;
965 }
966
967 /* add the duplicate fd, and optionally the opaque string, to the fd set */
968 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
969 &error_abort);
970 g_free(fdinfo);
971
972 return 0;
973 }
974
975 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
976 {
977 int fd;
978
979 fd = qemu_opt_get_number(opts, "fd", -1);
980 close(fd);
981
982 return 0;
983 }
984 #endif
985
986 /***********************************************************/
987 /* QEMU Block devices */
988
989 #define HD_OPTS "media=disk"
990 #define CDROM_OPTS "media=cdrom"
991 #define FD_OPTS ""
992 #define PFLASH_OPTS ""
993 #define MTD_OPTS ""
994 #define SD_OPTS ""
995
996 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
997 {
998 BlockInterfaceType *block_default_type = opaque;
999
1000 return drive_new(opts, *block_default_type, errp) == NULL;
1001 }
1002
1003 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1004 {
1005 if (qemu_opt_get(opts, "snapshot") == NULL) {
1006 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1007 }
1008 return 0;
1009 }
1010
1011 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1012 int index, const char *optstr)
1013 {
1014 QemuOpts *opts;
1015 DriveInfo *dinfo;
1016
1017 if (!enable || drive_get_by_index(type, index)) {
1018 return;
1019 }
1020
1021 opts = drive_add(type, index, NULL, optstr);
1022 if (snapshot) {
1023 drive_enable_snapshot(NULL, opts, NULL);
1024 }
1025
1026 dinfo = drive_new(opts, type, &error_abort);
1027 dinfo->is_default = true;
1028
1029 }
1030
1031 typedef struct BlockdevOptionsQueueEntry {
1032 BlockdevOptions *bdo;
1033 Location loc;
1034 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1035 } BlockdevOptionsQueueEntry;
1036
1037 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1038
1039 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1040 MachineClass *machine_class, int snapshot)
1041 {
1042 /*
1043 * If the currently selected machine wishes to override the
1044 * units-per-bus property of its default HBA interface type, do so
1045 * now.
1046 */
1047 if (machine_class->units_per_default_bus) {
1048 override_max_devs(machine_class->block_default_type,
1049 machine_class->units_per_default_bus);
1050 }
1051
1052 /* open the virtual block devices */
1053 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1054 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1055
1056 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1057 loc_push_restore(&bdo->loc);
1058 qmp_blockdev_add(bdo->bdo, &error_fatal);
1059 loc_pop(&bdo->loc);
1060 qapi_free_BlockdevOptions(bdo->bdo);
1061 g_free(bdo);
1062 }
1063 if (snapshot) {
1064 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1065 NULL, NULL);
1066 }
1067 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1068 &machine_class->block_default_type, &error_fatal)) {
1069 /* We printed help */
1070 exit(0);
1071 }
1072
1073 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1074 CDROM_OPTS);
1075 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1076 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1077
1078 }
1079
1080 static QemuOptsList qemu_smp_opts = {
1081 .name = "smp-opts",
1082 .implied_opt_name = "cpus",
1083 .merge_lists = true,
1084 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1085 .desc = {
1086 {
1087 .name = "cpus",
1088 .type = QEMU_OPT_NUMBER,
1089 }, {
1090 .name = "sockets",
1091 .type = QEMU_OPT_NUMBER,
1092 }, {
1093 .name = "dies",
1094 .type = QEMU_OPT_NUMBER,
1095 }, {
1096 .name = "cores",
1097 .type = QEMU_OPT_NUMBER,
1098 }, {
1099 .name = "threads",
1100 .type = QEMU_OPT_NUMBER,
1101 }, {
1102 .name = "maxcpus",
1103 .type = QEMU_OPT_NUMBER,
1104 },
1105 { /*End of list */ }
1106 },
1107 };
1108
1109 static void realtime_init(void)
1110 {
1111 if (enable_mlock) {
1112 if (os_mlock() < 0) {
1113 error_report("locking memory failed");
1114 exit(1);
1115 }
1116 }
1117 }
1118
1119
1120 static void configure_msg(QemuOpts *opts)
1121 {
1122 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1123 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
1124 }
1125
1126
1127 /***********************************************************/
1128 /* USB devices */
1129
1130 static int usb_device_add(const char *devname)
1131 {
1132 USBDevice *dev = NULL;
1133
1134 if (!machine_usb(current_machine)) {
1135 return -1;
1136 }
1137
1138 dev = usbdevice_create(devname);
1139 if (!dev)
1140 return -1;
1141
1142 return 0;
1143 }
1144
1145 static int usb_parse(const char *cmdline)
1146 {
1147 int r;
1148 r = usb_device_add(cmdline);
1149 if (r < 0) {
1150 error_report("could not add USB device '%s'", cmdline);
1151 }
1152 return r;
1153 }
1154
1155 /***********************************************************/
1156 /* machine registration */
1157
1158 MachineState *current_machine;
1159
1160 static MachineClass *find_machine(const char *name, GSList *machines)
1161 {
1162 GSList *el;
1163
1164 for (el = machines; el; el = el->next) {
1165 MachineClass *mc = el->data;
1166
1167 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1168 return mc;
1169 }
1170 }
1171
1172 return NULL;
1173 }
1174
1175 static MachineClass *find_default_machine(GSList *machines)
1176 {
1177 GSList *el;
1178 MachineClass *default_machineclass = NULL;
1179
1180 for (el = machines; el; el = el->next) {
1181 MachineClass *mc = el->data;
1182
1183 if (mc->is_default) {
1184 assert(default_machineclass == NULL && "Multiple default machines");
1185 default_machineclass = mc;
1186 }
1187 }
1188
1189 return default_machineclass;
1190 }
1191
1192 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1193 {
1194 ObjectProperty *prop;
1195 ObjectPropertyIterator iter;
1196
1197 if (!qemu_opt_has_help_opt(opts)) {
1198 return 0;
1199 }
1200
1201 object_property_iter_init(&iter, OBJECT(machine));
1202 while ((prop = object_property_iter_next(&iter))) {
1203 if (!prop->set) {
1204 continue;
1205 }
1206
1207 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1208 prop->name, prop->type);
1209 if (prop->description) {
1210 printf(" (%s)\n", prop->description);
1211 } else {
1212 printf("\n");
1213 }
1214 }
1215
1216 return 1;
1217 }
1218
1219 struct VMChangeStateEntry {
1220 VMChangeStateHandler *cb;
1221 void *opaque;
1222 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1223 int priority;
1224 };
1225
1226 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1227
1228 /**
1229 * qemu_add_vm_change_state_handler_prio:
1230 * @cb: the callback to invoke
1231 * @opaque: user data passed to the callback
1232 * @priority: low priorities execute first when the vm runs and the reverse is
1233 * true when the vm stops
1234 *
1235 * Register a callback function that is invoked when the vm starts or stops
1236 * running.
1237 *
1238 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1239 */
1240 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1241 VMChangeStateHandler *cb, void *opaque, int priority)
1242 {
1243 VMChangeStateEntry *e;
1244 VMChangeStateEntry *other;
1245
1246 e = g_malloc0(sizeof(*e));
1247 e->cb = cb;
1248 e->opaque = opaque;
1249 e->priority = priority;
1250
1251 /* Keep list sorted in ascending priority order */
1252 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1253 if (priority < other->priority) {
1254 QTAILQ_INSERT_BEFORE(other, e, entries);
1255 return e;
1256 }
1257 }
1258
1259 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1260 return e;
1261 }
1262
1263 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1264 void *opaque)
1265 {
1266 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1267 }
1268
1269 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1270 {
1271 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1272 g_free(e);
1273 }
1274
1275 void vm_state_notify(int running, RunState state)
1276 {
1277 VMChangeStateEntry *e, *next;
1278
1279 trace_vm_state_notify(running, state, RunState_str(state));
1280
1281 if (running) {
1282 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1283 e->cb(e->opaque, running, state);
1284 }
1285 } else {
1286 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1287 e->cb(e->opaque, running, state);
1288 }
1289 }
1290 }
1291
1292 static ShutdownCause reset_requested;
1293 static ShutdownCause shutdown_requested;
1294 static int shutdown_signal;
1295 static pid_t shutdown_pid;
1296 static int powerdown_requested;
1297 static int debug_requested;
1298 static int suspend_requested;
1299 static bool preconfig_exit_requested = true;
1300 static WakeupReason wakeup_reason;
1301 static NotifierList powerdown_notifiers =
1302 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1303 static NotifierList suspend_notifiers =
1304 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1305 static NotifierList wakeup_notifiers =
1306 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1307 static NotifierList shutdown_notifiers =
1308 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1309 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1310
1311 ShutdownCause qemu_shutdown_requested_get(void)
1312 {
1313 return shutdown_requested;
1314 }
1315
1316 ShutdownCause qemu_reset_requested_get(void)
1317 {
1318 return reset_requested;
1319 }
1320
1321 static int qemu_shutdown_requested(void)
1322 {
1323 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1324 }
1325
1326 static void qemu_kill_report(void)
1327 {
1328 if (!qtest_driver() && shutdown_signal) {
1329 if (shutdown_pid == 0) {
1330 /* This happens for eg ^C at the terminal, so it's worth
1331 * avoiding printing an odd message in that case.
1332 */
1333 error_report("terminating on signal %d", shutdown_signal);
1334 } else {
1335 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1336
1337 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1338 shutdown_signal, shutdown_pid,
1339 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1340 g_free(shutdown_cmd);
1341 }
1342 shutdown_signal = 0;
1343 }
1344 }
1345
1346 static ShutdownCause qemu_reset_requested(void)
1347 {
1348 ShutdownCause r = reset_requested;
1349
1350 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1351 reset_requested = SHUTDOWN_CAUSE_NONE;
1352 return r;
1353 }
1354 return SHUTDOWN_CAUSE_NONE;
1355 }
1356
1357 static int qemu_suspend_requested(void)
1358 {
1359 int r = suspend_requested;
1360 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1361 suspend_requested = 0;
1362 return r;
1363 }
1364 return false;
1365 }
1366
1367 static WakeupReason qemu_wakeup_requested(void)
1368 {
1369 return wakeup_reason;
1370 }
1371
1372 static int qemu_powerdown_requested(void)
1373 {
1374 int r = powerdown_requested;
1375 powerdown_requested = 0;
1376 return r;
1377 }
1378
1379 static int qemu_debug_requested(void)
1380 {
1381 int r = debug_requested;
1382 debug_requested = 0;
1383 return r;
1384 }
1385
1386 void qemu_exit_preconfig_request(void)
1387 {
1388 preconfig_exit_requested = true;
1389 }
1390
1391 /*
1392 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1393 */
1394 void qemu_system_reset(ShutdownCause reason)
1395 {
1396 MachineClass *mc;
1397
1398 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1399
1400 cpu_synchronize_all_states();
1401
1402 if (mc && mc->reset) {
1403 mc->reset(current_machine);
1404 } else {
1405 qemu_devices_reset();
1406 }
1407 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1408 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1409 }
1410 cpu_synchronize_all_post_reset();
1411 }
1412
1413 /*
1414 * Wake the VM after suspend.
1415 */
1416 static void qemu_system_wakeup(void)
1417 {
1418 MachineClass *mc;
1419
1420 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1421
1422 if (mc && mc->wakeup) {
1423 mc->wakeup(current_machine);
1424 }
1425 }
1426
1427 void qemu_system_guest_panicked(GuestPanicInformation *info)
1428 {
1429 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1430
1431 if (current_cpu) {
1432 current_cpu->crash_occurred = true;
1433 }
1434 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1435 !!info, info);
1436 vm_stop(RUN_STATE_GUEST_PANICKED);
1437 if (!no_shutdown) {
1438 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1439 !!info, info);
1440 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1441 }
1442
1443 if (info) {
1444 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1445 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1446 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1447 info->u.hyper_v.arg1,
1448 info->u.hyper_v.arg2,
1449 info->u.hyper_v.arg3,
1450 info->u.hyper_v.arg4,
1451 info->u.hyper_v.arg5);
1452 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1453 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1454 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1455 info->u.s390.core,
1456 S390CrashReason_str(info->u.s390.reason),
1457 info->u.s390.psw_mask,
1458 info->u.s390.psw_addr);
1459 }
1460 qapi_free_GuestPanicInformation(info);
1461 }
1462 }
1463
1464 void qemu_system_guest_crashloaded(GuestPanicInformation *info)
1465 {
1466 qemu_log_mask(LOG_GUEST_ERROR, "Guest crash loaded");
1467
1468 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN,
1469 !!info, info);
1470
1471 if (info) {
1472 qapi_free_GuestPanicInformation(info);
1473 }
1474 }
1475
1476 void qemu_system_reset_request(ShutdownCause reason)
1477 {
1478 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1479 shutdown_requested = reason;
1480 } else {
1481 reset_requested = reason;
1482 }
1483 cpu_stop_current();
1484 qemu_notify_event();
1485 }
1486
1487 static void qemu_system_suspend(void)
1488 {
1489 pause_all_vcpus();
1490 notifier_list_notify(&suspend_notifiers, NULL);
1491 runstate_set(RUN_STATE_SUSPENDED);
1492 qapi_event_send_suspend();
1493 }
1494
1495 void qemu_system_suspend_request(void)
1496 {
1497 if (runstate_check(RUN_STATE_SUSPENDED)) {
1498 return;
1499 }
1500 suspend_requested = 1;
1501 cpu_stop_current();
1502 qemu_notify_event();
1503 }
1504
1505 void qemu_register_suspend_notifier(Notifier *notifier)
1506 {
1507 notifier_list_add(&suspend_notifiers, notifier);
1508 }
1509
1510 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1511 {
1512 trace_system_wakeup_request(reason);
1513
1514 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1515 error_setg(errp,
1516 "Unable to wake up: guest is not in suspended state");
1517 return;
1518 }
1519 if (!(wakeup_reason_mask & (1 << reason))) {
1520 return;
1521 }
1522 runstate_set(RUN_STATE_RUNNING);
1523 wakeup_reason = reason;
1524 qemu_notify_event();
1525 }
1526
1527 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1528 {
1529 if (enabled) {
1530 wakeup_reason_mask |= (1 << reason);
1531 } else {
1532 wakeup_reason_mask &= ~(1 << reason);
1533 }
1534 }
1535
1536 void qemu_register_wakeup_notifier(Notifier *notifier)
1537 {
1538 notifier_list_add(&wakeup_notifiers, notifier);
1539 }
1540
1541 void qemu_register_wakeup_support(void)
1542 {
1543 wakeup_suspend_enabled = true;
1544 }
1545
1546 bool qemu_wakeup_suspend_enabled(void)
1547 {
1548 return wakeup_suspend_enabled;
1549 }
1550
1551 void qemu_system_killed(int signal, pid_t pid)
1552 {
1553 shutdown_signal = signal;
1554 shutdown_pid = pid;
1555 no_shutdown = 0;
1556
1557 /* Cannot call qemu_system_shutdown_request directly because
1558 * we are in a signal handler.
1559 */
1560 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1561 qemu_notify_event();
1562 }
1563
1564 void qemu_system_shutdown_request(ShutdownCause reason)
1565 {
1566 trace_qemu_system_shutdown_request(reason);
1567 replay_shutdown_request(reason);
1568 shutdown_requested = reason;
1569 qemu_notify_event();
1570 }
1571
1572 static void qemu_system_powerdown(void)
1573 {
1574 qapi_event_send_powerdown();
1575 notifier_list_notify(&powerdown_notifiers, NULL);
1576 }
1577
1578 static void qemu_system_shutdown(ShutdownCause cause)
1579 {
1580 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1581 notifier_list_notify(&shutdown_notifiers, &cause);
1582 }
1583
1584 void qemu_system_powerdown_request(void)
1585 {
1586 trace_qemu_system_powerdown_request();
1587 powerdown_requested = 1;
1588 qemu_notify_event();
1589 }
1590
1591 void qemu_register_powerdown_notifier(Notifier *notifier)
1592 {
1593 notifier_list_add(&powerdown_notifiers, notifier);
1594 }
1595
1596 void qemu_register_shutdown_notifier(Notifier *notifier)
1597 {
1598 notifier_list_add(&shutdown_notifiers, notifier);
1599 }
1600
1601 void qemu_system_debug_request(void)
1602 {
1603 debug_requested = 1;
1604 qemu_notify_event();
1605 }
1606
1607 static bool main_loop_should_exit(void)
1608 {
1609 RunState r;
1610 ShutdownCause request;
1611
1612 if (preconfig_exit_requested) {
1613 if (runstate_check(RUN_STATE_PRECONFIG)) {
1614 runstate_set(RUN_STATE_PRELAUNCH);
1615 }
1616 preconfig_exit_requested = false;
1617 return true;
1618 }
1619 if (qemu_debug_requested()) {
1620 vm_stop(RUN_STATE_DEBUG);
1621 }
1622 if (qemu_suspend_requested()) {
1623 qemu_system_suspend();
1624 }
1625 request = qemu_shutdown_requested();
1626 if (request) {
1627 qemu_kill_report();
1628 qemu_system_shutdown(request);
1629 if (no_shutdown) {
1630 vm_stop(RUN_STATE_SHUTDOWN);
1631 } else {
1632 return true;
1633 }
1634 }
1635 request = qemu_reset_requested();
1636 if (request) {
1637 pause_all_vcpus();
1638 qemu_system_reset(request);
1639 resume_all_vcpus();
1640 /*
1641 * runstate can change in pause_all_vcpus()
1642 * as iothread mutex is unlocked
1643 */
1644 if (!runstate_check(RUN_STATE_RUNNING) &&
1645 !runstate_check(RUN_STATE_INMIGRATE) &&
1646 !runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1647 runstate_set(RUN_STATE_PRELAUNCH);
1648 }
1649 }
1650 if (qemu_wakeup_requested()) {
1651 pause_all_vcpus();
1652 qemu_system_wakeup();
1653 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1654 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1655 resume_all_vcpus();
1656 qapi_event_send_wakeup();
1657 }
1658 if (qemu_powerdown_requested()) {
1659 qemu_system_powerdown();
1660 }
1661 if (qemu_vmstop_requested(&r)) {
1662 vm_stop(r);
1663 }
1664 return false;
1665 }
1666
1667 void qemu_main_loop(void)
1668 {
1669 #ifdef CONFIG_PROFILER
1670 int64_t ti;
1671 #endif
1672 while (!main_loop_should_exit()) {
1673 #ifdef CONFIG_PROFILER
1674 ti = profile_getclock();
1675 #endif
1676 main_loop_wait(false);
1677 #ifdef CONFIG_PROFILER
1678 dev_time += profile_getclock() - ti;
1679 #endif
1680 }
1681 }
1682
1683 static void version(void)
1684 {
1685 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1686 QEMU_COPYRIGHT "\n");
1687 }
1688
1689 static void help(int exitcode)
1690 {
1691 version();
1692 printf("usage: %s [options] [disk_image]\n\n"
1693 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1694 error_get_progname());
1695
1696 #define QEMU_OPTIONS_GENERATE_HELP
1697 #include "qemu-options-wrapper.h"
1698
1699 printf("\nDuring emulation, the following keys are useful:\n"
1700 "ctrl-alt-f toggle full screen\n"
1701 "ctrl-alt-n switch to virtual console 'n'\n"
1702 "ctrl-alt toggle mouse and keyboard grab\n"
1703 "\n"
1704 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1705 "\n"
1706 QEMU_HELP_BOTTOM "\n");
1707
1708 exit(exitcode);
1709 }
1710
1711 #define HAS_ARG 0x0001
1712
1713 typedef struct QEMUOption {
1714 const char *name;
1715 int flags;
1716 int index;
1717 uint32_t arch_mask;
1718 } QEMUOption;
1719
1720 static const QEMUOption qemu_options[] = {
1721 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1722 #define QEMU_OPTIONS_GENERATE_OPTIONS
1723 #include "qemu-options-wrapper.h"
1724 { NULL },
1725 };
1726
1727 typedef struct VGAInterfaceInfo {
1728 const char *opt_name; /* option name */
1729 const char *name; /* human-readable name */
1730 /* Class names indicating that support is available.
1731 * If no class is specified, the interface is always available */
1732 const char *class_names[2];
1733 } VGAInterfaceInfo;
1734
1735 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1736 [VGA_NONE] = {
1737 .opt_name = "none",
1738 .name = "no graphic card",
1739 },
1740 [VGA_STD] = {
1741 .opt_name = "std",
1742 .name = "standard VGA",
1743 .class_names = { "VGA", "isa-vga" },
1744 },
1745 [VGA_CIRRUS] = {
1746 .opt_name = "cirrus",
1747 .name = "Cirrus VGA",
1748 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1749 },
1750 [VGA_VMWARE] = {
1751 .opt_name = "vmware",
1752 .name = "VMWare SVGA",
1753 .class_names = { "vmware-svga" },
1754 },
1755 [VGA_VIRTIO] = {
1756 .opt_name = "virtio",
1757 .name = "Virtio VGA",
1758 .class_names = { "virtio-vga" },
1759 },
1760 [VGA_QXL] = {
1761 .opt_name = "qxl",
1762 .name = "QXL VGA",
1763 .class_names = { "qxl-vga" },
1764 },
1765 [VGA_TCX] = {
1766 .opt_name = "tcx",
1767 .name = "TCX framebuffer",
1768 .class_names = { "SUNW,tcx" },
1769 },
1770 [VGA_CG3] = {
1771 .opt_name = "cg3",
1772 .name = "CG3 framebuffer",
1773 .class_names = { "cgthree" },
1774 },
1775 [VGA_XENFB] = {
1776 .opt_name = "xenfb",
1777 .name = "Xen paravirtualized framebuffer",
1778 },
1779 };
1780
1781 static bool vga_interface_available(VGAInterfaceType t)
1782 {
1783 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1784
1785 assert(t < VGA_TYPE_MAX);
1786 return !ti->class_names[0] ||
1787 module_object_class_by_name(ti->class_names[0]) ||
1788 module_object_class_by_name(ti->class_names[1]);
1789 }
1790
1791 static const char *
1792 get_default_vga_model(const MachineClass *machine_class)
1793 {
1794 if (machine_class->default_display) {
1795 return machine_class->default_display;
1796 } else if (vga_interface_available(VGA_CIRRUS)) {
1797 return "cirrus";
1798 } else if (vga_interface_available(VGA_STD)) {
1799 return "std";
1800 }
1801
1802 return NULL;
1803 }
1804
1805 static void select_vgahw(const MachineClass *machine_class, const char *p)
1806 {
1807 const char *opts;
1808 int t;
1809
1810 if (g_str_equal(p, "help")) {
1811 const char *def = get_default_vga_model(machine_class);
1812
1813 for (t = 0; t < VGA_TYPE_MAX; t++) {
1814 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1815
1816 if (vga_interface_available(t) && ti->opt_name) {
1817 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1818 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1819 }
1820 }
1821 exit(0);
1822 }
1823
1824 assert(vga_interface_type == VGA_NONE);
1825 for (t = 0; t < VGA_TYPE_MAX; t++) {
1826 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1827 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1828 if (!vga_interface_available(t)) {
1829 error_report("%s not available", ti->name);
1830 exit(1);
1831 }
1832 vga_interface_type = t;
1833 break;
1834 }
1835 }
1836 if (t == VGA_TYPE_MAX) {
1837 invalid_vga:
1838 error_report("unknown vga type: %s", p);
1839 exit(1);
1840 }
1841 while (*opts) {
1842 const char *nextopt;
1843
1844 if (strstart(opts, ",retrace=", &nextopt)) {
1845 opts = nextopt;
1846 if (strstart(opts, "dumb", &nextopt))
1847 vga_retrace_method = VGA_RETRACE_DUMB;
1848 else if (strstart(opts, "precise", &nextopt))
1849 vga_retrace_method = VGA_RETRACE_PRECISE;
1850 else goto invalid_vga;
1851 } else goto invalid_vga;
1852 opts = nextopt;
1853 }
1854 }
1855
1856 static void parse_display_qapi(const char *optarg)
1857 {
1858 DisplayOptions *opts;
1859 Visitor *v;
1860
1861 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1862
1863 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1864 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1865
1866 qapi_free_DisplayOptions(opts);
1867 visit_free(v);
1868 }
1869
1870 DisplayOptions *qmp_query_display_options(Error **errp)
1871 {
1872 return QAPI_CLONE(DisplayOptions, &dpy);
1873 }
1874
1875 static void parse_display(const char *p)
1876 {
1877 const char *opts;
1878
1879 if (is_help_option(p)) {
1880 qemu_display_help();
1881 exit(0);
1882 }
1883
1884 if (strstart(p, "sdl", &opts)) {
1885 /*
1886 * sdl DisplayType needs hand-crafted parser instead of
1887 * parse_display_qapi() due to some options not in
1888 * DisplayOptions, specifically:
1889 * - frame
1890 * Already deprecated.
1891 * - ctrl_grab + alt_grab
1892 * Not clear yet what happens to them long-term. Should
1893 * replaced by something better or deprecated and dropped.
1894 */
1895 dpy.type = DISPLAY_TYPE_SDL;
1896 while (*opts) {
1897 const char *nextopt;
1898
1899 if (strstart(opts, ",alt_grab=", &nextopt)) {
1900 opts = nextopt;
1901 if (strstart(opts, "on", &nextopt)) {
1902 alt_grab = 1;
1903 } else if (strstart(opts, "off", &nextopt)) {
1904 alt_grab = 0;
1905 } else {
1906 goto invalid_sdl_args;
1907 }
1908 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1909 opts = nextopt;
1910 if (strstart(opts, "on", &nextopt)) {
1911 ctrl_grab = 1;
1912 } else if (strstart(opts, "off", &nextopt)) {
1913 ctrl_grab = 0;
1914 } else {
1915 goto invalid_sdl_args;
1916 }
1917 } else if (strstart(opts, ",window_close=", &nextopt)) {
1918 opts = nextopt;
1919 dpy.has_window_close = true;
1920 if (strstart(opts, "on", &nextopt)) {
1921 dpy.window_close = true;
1922 } else if (strstart(opts, "off", &nextopt)) {
1923 dpy.window_close = false;
1924 } else {
1925 goto invalid_sdl_args;
1926 }
1927 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1928 opts = nextopt;
1929 dpy.has_show_cursor = true;
1930 if (strstart(opts, "on", &nextopt)) {
1931 dpy.show_cursor = true;
1932 } else if (strstart(opts, "off", &nextopt)) {
1933 dpy.show_cursor = false;
1934 } else {
1935 goto invalid_sdl_args;
1936 }
1937 } else if (strstart(opts, ",gl=", &nextopt)) {
1938 opts = nextopt;
1939 dpy.has_gl = true;
1940 if (strstart(opts, "on", &nextopt)) {
1941 dpy.gl = DISPLAYGL_MODE_ON;
1942 } else if (strstart(opts, "core", &nextopt)) {
1943 dpy.gl = DISPLAYGL_MODE_CORE;
1944 } else if (strstart(opts, "es", &nextopt)) {
1945 dpy.gl = DISPLAYGL_MODE_ES;
1946 } else if (strstart(opts, "off", &nextopt)) {
1947 dpy.gl = DISPLAYGL_MODE_OFF;
1948 } else {
1949 goto invalid_sdl_args;
1950 }
1951 } else {
1952 invalid_sdl_args:
1953 error_report("invalid SDL option string");
1954 exit(1);
1955 }
1956 opts = nextopt;
1957 }
1958 } else if (strstart(p, "vnc", &opts)) {
1959 /*
1960 * vnc isn't a (local) DisplayType but a protocol for remote
1961 * display access.
1962 */
1963 if (*opts == '=') {
1964 vnc_parse(opts + 1, &error_fatal);
1965 } else {
1966 error_report("VNC requires a display argument vnc=<display>");
1967 exit(1);
1968 }
1969 } else {
1970 parse_display_qapi(p);
1971 }
1972 }
1973
1974 char *qemu_find_file(int type, const char *name)
1975 {
1976 int i;
1977 const char *subdir;
1978 char *buf;
1979
1980 /* Try the name as a straight path first */
1981 if (access(name, R_OK) == 0) {
1982 trace_load_file(name, name);
1983 return g_strdup(name);
1984 }
1985
1986 switch (type) {
1987 case QEMU_FILE_TYPE_BIOS:
1988 subdir = "";
1989 break;
1990 case QEMU_FILE_TYPE_KEYMAP:
1991 subdir = "keymaps/";
1992 break;
1993 default:
1994 abort();
1995 }
1996
1997 for (i = 0; i < data_dir_idx; i++) {
1998 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
1999 if (access(buf, R_OK) == 0) {
2000 trace_load_file(name, buf);
2001 return buf;
2002 }
2003 g_free(buf);
2004 }
2005 return NULL;
2006 }
2007
2008 void qemu_add_data_dir(const char *path)
2009 {
2010 int i;
2011
2012 if (path == NULL) {
2013 return;
2014 }
2015 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2016 return;
2017 }
2018 for (i = 0; i < data_dir_idx; i++) {
2019 if (strcmp(data_dir[i], path) == 0) {
2020 return; /* duplicate */
2021 }
2022 }
2023 data_dir[data_dir_idx++] = g_strdup(path);
2024 }
2025
2026 static inline bool nonempty_str(const char *str)
2027 {
2028 return str && *str;
2029 }
2030
2031 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2032 {
2033 gchar *buf;
2034 size_t size;
2035 const char *name, *file, *str, *gen_id;
2036 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2037
2038 if (fw_cfg == NULL) {
2039 error_setg(errp, "fw_cfg device not available");
2040 return -1;
2041 }
2042 name = qemu_opt_get(opts, "name");
2043 file = qemu_opt_get(opts, "file");
2044 str = qemu_opt_get(opts, "string");
2045 gen_id = qemu_opt_get(opts, "gen_id");
2046
2047 /* we need the name, and exactly one of: file, content string, gen_id */
2048 if (!nonempty_str(name) ||
2049 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
2050 error_setg(errp, "name, plus exactly one of file,"
2051 " string and gen_id, are needed");
2052 return -1;
2053 }
2054 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2055 error_setg(errp, "name too long (max. %d char)",
2056 FW_CFG_MAX_FILE_PATH - 1);
2057 return -1;
2058 }
2059 if (nonempty_str(gen_id)) {
2060 /*
2061 * In this particular case where the content is populated
2062 * internally, the "etc/" namespace protection is relaxed,
2063 * so do not emit a warning.
2064 */
2065 } else if (strncmp(name, "opt/", 4) != 0) {
2066 warn_report("externally provided fw_cfg item names "
2067 "should be prefixed with \"opt/\"");
2068 }
2069 if (nonempty_str(str)) {
2070 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2071 buf = g_memdup(str, size);
2072 } else if (nonempty_str(gen_id)) {
2073 Error *local_err = NULL;
2074
2075 fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp);
2076 if (local_err) {
2077 error_propagate(errp, local_err);
2078 return -1;
2079 }
2080 return 0;
2081 } else {
2082 GError *err = NULL;
2083 if (!g_file_get_contents(file, &buf, &size, &err)) {
2084 error_setg(errp, "can't load %s: %s", file, err->message);
2085 g_error_free(err);
2086 return -1;
2087 }
2088 }
2089 /* For legacy, keep user files in a specific global order. */
2090 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2091 fw_cfg_add_file(fw_cfg, name, buf, size);
2092 fw_cfg_reset_order_override(fw_cfg);
2093 return 0;
2094 }
2095
2096 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2097 {
2098 return qdev_device_help(opts);
2099 }
2100
2101 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2102 {
2103 DeviceState *dev;
2104
2105 dev = qdev_device_add(opts, errp);
2106 if (!dev && *errp) {
2107 error_report_err(*errp);
2108 return -1;
2109 } else if (dev) {
2110 object_unref(OBJECT(dev));
2111 }
2112 return 0;
2113 }
2114
2115 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2116 {
2117 Error *local_err = NULL;
2118
2119 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2120 if (local_err) {
2121 error_propagate(errp, local_err);
2122 return -1;
2123 }
2124 exit(0);
2125 }
2126 return 0;
2127 }
2128
2129 #ifdef CONFIG_VIRTFS
2130 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2131 {
2132 return qemu_fsdev_add(opts, errp);
2133 }
2134 #endif
2135
2136 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2137 {
2138 return monitor_init_opts(opts, errp);
2139 }
2140
2141 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2142 {
2143 static int monitor_device_index = 0;
2144 QemuOpts *opts;
2145 const char *p;
2146 char label[32];
2147
2148 if (strstart(optarg, "chardev:", &p)) {
2149 snprintf(label, sizeof(label), "%s", p);
2150 } else {
2151 snprintf(label, sizeof(label), "compat_monitor%d",
2152 monitor_device_index);
2153 opts = qemu_chr_parse_compat(label, optarg, true);
2154 if (!opts) {
2155 error_report("parse error: %s", optarg);
2156 exit(1);
2157 }
2158 }
2159
2160 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2161 qemu_opt_set(opts, "mode", mode, &error_abort);
2162 qemu_opt_set(opts, "chardev", label, &error_abort);
2163 if (!strcmp(mode, "control")) {
2164 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2165 } else {
2166 assert(pretty == false);
2167 }
2168 monitor_device_index++;
2169 }
2170
2171 struct device_config {
2172 enum {
2173 DEV_USB, /* -usbdevice */
2174 DEV_SERIAL, /* -serial */
2175 DEV_PARALLEL, /* -parallel */
2176 DEV_DEBUGCON, /* -debugcon */
2177 DEV_GDB, /* -gdb, -s */
2178 DEV_SCLP, /* s390 sclp */
2179 } type;
2180 const char *cmdline;
2181 Location loc;
2182 QTAILQ_ENTRY(device_config) next;
2183 };
2184
2185 static QTAILQ_HEAD(, device_config) device_configs =
2186 QTAILQ_HEAD_INITIALIZER(device_configs);
2187
2188 static void add_device_config(int type, const char *cmdline)
2189 {
2190 struct device_config *conf;
2191
2192 conf = g_malloc0(sizeof(*conf));
2193 conf->type = type;
2194 conf->cmdline = cmdline;
2195 loc_save(&conf->loc);
2196 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2197 }
2198
2199 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2200 {
2201 struct device_config *conf;
2202 int rc;
2203
2204 QTAILQ_FOREACH(conf, &device_configs, next) {
2205 if (conf->type != type)
2206 continue;
2207 loc_push_restore(&conf->loc);
2208 rc = func(conf->cmdline);
2209 loc_pop(&conf->loc);
2210 if (rc) {
2211 return rc;
2212 }
2213 }
2214 return 0;
2215 }
2216
2217 static int serial_parse(const char *devname)
2218 {
2219 int index = num_serial_hds;
2220 char label[32];
2221
2222 if (strcmp(devname, "none") == 0)
2223 return 0;
2224 snprintf(label, sizeof(label), "serial%d", index);
2225 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2226
2227 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2228 if (!serial_hds[index]) {
2229 error_report("could not connect serial device"
2230 " to character backend '%s'", devname);
2231 return -1;
2232 }
2233 num_serial_hds++;
2234 return 0;
2235 }
2236
2237 Chardev *serial_hd(int i)
2238 {
2239 assert(i >= 0);
2240 if (i < num_serial_hds) {
2241 return serial_hds[i];
2242 }
2243 return NULL;
2244 }
2245
2246 int serial_max_hds(void)
2247 {
2248 return num_serial_hds;
2249 }
2250
2251 static int parallel_parse(const char *devname)
2252 {
2253 static int index = 0;
2254 char label[32];
2255
2256 if (strcmp(devname, "none") == 0)
2257 return 0;
2258 if (index == MAX_PARALLEL_PORTS) {
2259 error_report("too many parallel ports");
2260 exit(1);
2261 }
2262 snprintf(label, sizeof(label), "parallel%d", index);
2263 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2264 if (!parallel_hds[index]) {
2265 error_report("could not connect parallel device"
2266 " to character backend '%s'", devname);
2267 return -1;
2268 }
2269 index++;
2270 return 0;
2271 }
2272
2273 static int debugcon_parse(const char *devname)
2274 {
2275 QemuOpts *opts;
2276
2277 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2278 error_report("invalid character backend '%s'", devname);
2279 exit(1);
2280 }
2281 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2282 if (!opts) {
2283 error_report("already have a debugcon device");
2284 exit(1);
2285 }
2286 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2287 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2288 return 0;
2289 }
2290
2291 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2292 {
2293 const MachineClass *mc1 = a, *mc2 = b;
2294 int res;
2295
2296 if (mc1->family == NULL) {
2297 if (mc2->family == NULL) {
2298 /* Compare standalone machine types against each other; they sort
2299 * in increasing order.
2300 */
2301 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2302 object_class_get_name(OBJECT_CLASS(mc2)));
2303 }
2304
2305 /* Standalone machine types sort after families. */
2306 return 1;
2307 }
2308
2309 if (mc2->family == NULL) {
2310 /* Families sort before standalone machine types. */
2311 return -1;
2312 }
2313
2314 /* Families sort between each other alphabetically increasingly. */
2315 res = strcmp(mc1->family, mc2->family);
2316 if (res != 0) {
2317 return res;
2318 }
2319
2320 /* Within the same family, machine types sort in decreasing order. */
2321 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2322 object_class_get_name(OBJECT_CLASS(mc1)));
2323 }
2324
2325 static MachineClass *machine_parse(const char *name, GSList *machines)
2326 {
2327 MachineClass *mc;
2328 GSList *el;
2329
2330 if (is_help_option(name)) {
2331 printf("Supported machines are:\n");
2332 machines = g_slist_sort(machines, machine_class_cmp);
2333 for (el = machines; el; el = el->next) {
2334 MachineClass *mc = el->data;
2335 if (mc->alias) {
2336 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2337 }
2338 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2339 mc->is_default ? " (default)" : "",
2340 mc->deprecation_reason ? " (deprecated)" : "");
2341 }
2342 exit(0);
2343 }
2344
2345 mc = find_machine(name, machines);
2346 if (!mc) {
2347 error_report("unsupported machine type");
2348 error_printf("Use -machine help to list supported machines\n");
2349 exit(1);
2350 }
2351 return mc;
2352 }
2353
2354 void qemu_add_exit_notifier(Notifier *notify)
2355 {
2356 notifier_list_add(&exit_notifiers, notify);
2357 }
2358
2359 void qemu_remove_exit_notifier(Notifier *notify)
2360 {
2361 notifier_remove(notify);
2362 }
2363
2364 static void qemu_run_exit_notifiers(void)
2365 {
2366 notifier_list_notify(&exit_notifiers, NULL);
2367 }
2368
2369 static const char *pid_file;
2370 static Notifier qemu_unlink_pidfile_notifier;
2371
2372 static void qemu_unlink_pidfile(Notifier *n, void *data)
2373 {
2374 if (pid_file) {
2375 unlink(pid_file);
2376 }
2377 }
2378
2379 bool machine_init_done;
2380
2381 void qemu_add_machine_init_done_notifier(Notifier *notify)
2382 {
2383 notifier_list_add(&machine_init_done_notifiers, notify);
2384 if (machine_init_done) {
2385 notify->notify(notify, NULL);
2386 }
2387 }
2388
2389 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2390 {
2391 notifier_remove(notify);
2392 }
2393
2394 static void qemu_run_machine_init_done_notifiers(void)
2395 {
2396 machine_init_done = true;
2397 notifier_list_notify(&machine_init_done_notifiers, NULL);
2398 }
2399
2400 static const QEMUOption *lookup_opt(int argc, char **argv,
2401 const char **poptarg, int *poptind)
2402 {
2403 const QEMUOption *popt;
2404 int optind = *poptind;
2405 char *r = argv[optind];
2406 const char *optarg;
2407
2408 loc_set_cmdline(argv, optind, 1);
2409 optind++;
2410 /* Treat --foo the same as -foo. */
2411 if (r[1] == '-')
2412 r++;
2413 popt = qemu_options;
2414 for(;;) {
2415 if (!popt->name) {
2416 error_report("invalid option");
2417 exit(1);
2418 }
2419 if (!strcmp(popt->name, r + 1))
2420 break;
2421 popt++;
2422 }
2423 if (popt->flags & HAS_ARG) {
2424 if (optind >= argc) {
2425 error_report("requires an argument");
2426 exit(1);
2427 }
2428 optarg = argv[optind++];
2429 loc_set_cmdline(argv, optind - 2, 2);
2430 } else {
2431 optarg = NULL;
2432 }
2433
2434 *poptarg = optarg;
2435 *poptind = optind;
2436
2437 return popt;
2438 }
2439
2440 static MachineClass *select_machine(void)
2441 {
2442 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2443 MachineClass *machine_class = find_default_machine(machines);
2444 const char *optarg;
2445 QemuOpts *opts;
2446 Location loc;
2447
2448 loc_push_none(&loc);
2449
2450 opts = qemu_get_machine_opts();
2451 qemu_opts_loc_restore(opts);
2452
2453 optarg = qemu_opt_get(opts, "type");
2454 if (optarg) {
2455 machine_class = machine_parse(optarg, machines);
2456 }
2457
2458 if (!machine_class) {
2459 error_report("No machine specified, and there is no default");
2460 error_printf("Use -machine help to list supported machines\n");
2461 exit(1);
2462 }
2463
2464 loc_pop(&loc);
2465 g_slist_free(machines);
2466 return machine_class;
2467 }
2468
2469 static int object_parse_property_opt(Object *obj,
2470 const char *name, const char *value,
2471 const char *skip, Error **errp)
2472 {
2473 if (g_str_equal(name, skip)) {
2474 return 0;
2475 }
2476
2477 if (!object_property_parse(obj, name, value, errp)) {
2478 return -1;
2479 }
2480
2481 return 0;
2482 }
2483
2484 static int machine_set_property(void *opaque,
2485 const char *name, const char *value,
2486 Error **errp)
2487 {
2488 g_autofree char *qom_name = g_strdup(name);
2489 char *p;
2490
2491 for (p = qom_name; *p; p++) {
2492 if (*p == '_') {
2493 *p = '-';
2494 }
2495 }
2496
2497 /* Legacy options do not correspond to MachineState properties. */
2498 if (g_str_equal(qom_name, "accel")) {
2499 return 0;
2500 }
2501 if (g_str_equal(qom_name, "igd-passthru")) {
2502 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2503 return 0;
2504 }
2505 if (g_str_equal(qom_name, "kvm-shadow-mem") ||
2506 g_str_equal(qom_name, "kernel-irqchip")) {
2507 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2508 return 0;
2509 }
2510
2511 return object_parse_property_opt(opaque, name, value, "type", errp);
2512 }
2513
2514 /*
2515 * Initial object creation happens before all other
2516 * QEMU data types are created. The majority of objects
2517 * can be created at this point. The rng-egd object
2518 * cannot be created here, as it depends on the chardev
2519 * already existing.
2520 */
2521 static bool object_create_initial(const char *type, QemuOpts *opts)
2522 {
2523 if (user_creatable_print_help(type, opts)) {
2524 exit(0);
2525 }
2526
2527 /*
2528 * Objects should not be made "delayed" without a reason. If you
2529 * add one, state the reason in a comment!
2530 */
2531
2532 /* Reason: rng-egd property "chardev" */
2533 if (g_str_equal(type, "rng-egd")) {
2534 return false;
2535 }
2536
2537 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2538 /* Reason: cryptodev-vhost-user property "chardev" */
2539 if (g_str_equal(type, "cryptodev-vhost-user")) {
2540 return false;
2541 }
2542 #endif
2543
2544 /*
2545 * Reason: filter-* property "netdev" etc.
2546 */
2547 if (g_str_equal(type, "filter-buffer") ||
2548 g_str_equal(type, "filter-dump") ||
2549 g_str_equal(type, "filter-mirror") ||
2550 g_str_equal(type, "filter-redirector") ||
2551 g_str_equal(type, "colo-compare") ||
2552 g_str_equal(type, "filter-rewriter") ||
2553 g_str_equal(type, "filter-replay")) {
2554 return false;
2555 }
2556
2557 /* Memory allocation by backends needs to be done
2558 * after configure_accelerator() (due to the tcg_enabled()
2559 * checks at memory_region_init_*()).
2560 *
2561 * Also, allocation of large amounts of memory may delay
2562 * chardev initialization for too long, and trigger timeouts
2563 * on software that waits for a monitor socket to be created
2564 * (e.g. libvirt).
2565 */
2566 if (g_str_has_prefix(type, "memory-backend-")) {
2567 return false;
2568 }
2569
2570 return true;
2571 }
2572
2573
2574 /*
2575 * The remainder of object creation happens after the
2576 * creation of chardev, fsdev, net clients and device data types.
2577 */
2578 static bool object_create_delayed(const char *type, QemuOpts *opts)
2579 {
2580 return !object_create_initial(type, opts);
2581 }
2582
2583
2584 static bool set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2585 MachineClass *mc)
2586 {
2587 uint64_t sz;
2588 const char *mem_str;
2589 const ram_addr_t default_ram_size = mc->default_ram_size;
2590 QemuOpts *opts = qemu_find_opts_singleton("memory");
2591 Location loc;
2592
2593 loc_push_none(&loc);
2594 qemu_opts_loc_restore(opts);
2595
2596 sz = 0;
2597 mem_str = qemu_opt_get(opts, "size");
2598 if (mem_str) {
2599 if (!*mem_str) {
2600 error_report("missing 'size' option value");
2601 exit(EXIT_FAILURE);
2602 }
2603
2604 sz = qemu_opt_get_size(opts, "size", ram_size);
2605
2606 /* Fix up legacy suffix-less format */
2607 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2608 uint64_t overflow_check = sz;
2609
2610 sz *= MiB;
2611 if (sz / MiB != overflow_check) {
2612 error_report("too large 'size' option value");
2613 exit(EXIT_FAILURE);
2614 }
2615 }
2616 }
2617
2618 /* backward compatibility behaviour for case "-m 0" */
2619 if (sz == 0) {
2620 sz = default_ram_size;
2621 }
2622
2623 sz = QEMU_ALIGN_UP(sz, 8192);
2624 if (mc->fixup_ram_size) {
2625 sz = mc->fixup_ram_size(sz);
2626 }
2627 ram_size = sz;
2628 if (ram_size != sz) {
2629 error_report("ram size too large");
2630 exit(EXIT_FAILURE);
2631 }
2632
2633 /* store value for the future use */
2634 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2635 *maxram_size = ram_size;
2636
2637 if (qemu_opt_get(opts, "maxmem")) {
2638 uint64_t slots;
2639
2640 sz = qemu_opt_get_size(opts, "maxmem", 0);
2641 slots = qemu_opt_get_number(opts, "slots", 0);
2642 if (sz < ram_size) {
2643 error_report("invalid value of -m option maxmem: "
2644 "maximum memory size (0x%" PRIx64 ") must be at least "
2645 "the initial memory size (0x" RAM_ADDR_FMT ")",
2646 sz, ram_size);
2647 exit(EXIT_FAILURE);
2648 } else if (slots && sz == ram_size) {
2649 error_report("invalid value of -m option maxmem: "
2650 "memory slots were specified but maximum memory size "
2651 "(0x%" PRIx64 ") is equal to the initial memory size "
2652 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2653 exit(EXIT_FAILURE);
2654 }
2655
2656 *maxram_size = sz;
2657 *ram_slots = slots;
2658 } else if (qemu_opt_get(opts, "slots")) {
2659 error_report("invalid -m option value: missing 'maxmem' option");
2660 exit(EXIT_FAILURE);
2661 }
2662
2663 loc_pop(&loc);
2664 return !!mem_str;
2665 }
2666
2667 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2668 {
2669 GlobalProperty *g;
2670
2671 g = g_malloc0(sizeof(*g));
2672 g->driver = qemu_opt_get(opts, "driver");
2673 g->property = qemu_opt_get(opts, "property");
2674 g->value = qemu_opt_get(opts, "value");
2675 qdev_prop_register_global(g);
2676 return 0;
2677 }
2678
2679 static int qemu_read_default_config_file(void)
2680 {
2681 int ret;
2682
2683 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2684 if (ret < 0 && ret != -ENOENT) {
2685 return ret;
2686 }
2687
2688 return 0;
2689 }
2690
2691 static void user_register_global_props(void)
2692 {
2693 qemu_opts_foreach(qemu_find_opts("global"),
2694 global_init_func, NULL, NULL);
2695 }
2696
2697 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2698 {
2699 configure_icount(opts, errp);
2700 return 0;
2701 }
2702
2703 static int accelerator_set_property(void *opaque,
2704 const char *name, const char *value,
2705 Error **errp)
2706 {
2707 return object_parse_property_opt(opaque, name, value, "accel", errp);
2708 }
2709
2710 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2711 {
2712 bool *p_init_failed = opaque;
2713 const char *acc = qemu_opt_get(opts, "accel");
2714 AccelClass *ac = accel_find(acc);
2715 AccelState *accel;
2716 int ret;
2717
2718 if (!ac) {
2719 *p_init_failed = true;
2720 error_report("invalid accelerator %s", acc);
2721 return 0;
2722 }
2723 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2724 object_apply_compat_props(OBJECT(accel));
2725 qemu_opt_foreach(opts, accelerator_set_property,
2726 accel,
2727 &error_fatal);
2728
2729 ret = accel_init_machine(accel, current_machine);
2730 if (ret < 0) {
2731 *p_init_failed = true;
2732 error_report("failed to initialize %s: %s",
2733 acc, strerror(-ret));
2734 return 0;
2735 }
2736
2737 return 1;
2738 }
2739
2740 static void configure_accelerators(const char *progname)
2741 {
2742 const char *accel;
2743 bool init_failed = false;
2744
2745 qemu_opts_foreach(qemu_find_opts("icount"),
2746 do_configure_icount, NULL, &error_fatal);
2747
2748 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2749 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2750 char **accel_list, **tmp;
2751
2752 if (accel == NULL) {
2753 /* Select the default accelerator */
2754 bool have_tcg = accel_find("tcg");
2755 bool have_kvm = accel_find("kvm");
2756
2757 if (have_tcg && have_kvm) {
2758 if (g_str_has_suffix(progname, "kvm")) {
2759 /* If the program name ends with "kvm", we prefer KVM */
2760 accel = "kvm:tcg";
2761 } else {
2762 accel = "tcg:kvm";
2763 }
2764 } else if (have_kvm) {
2765 accel = "kvm";
2766 } else if (have_tcg) {
2767 accel = "tcg";
2768 } else {
2769 error_report("No accelerator selected and"
2770 " no default accelerator available");
2771 exit(1);
2772 }
2773 }
2774 accel_list = g_strsplit(accel, ":", 0);
2775
2776 for (tmp = accel_list; *tmp; tmp++) {
2777 /*
2778 * Filter invalid accelerators here, to prevent obscenities
2779 * such as "-machine accel=tcg,,thread=single".
2780 */
2781 if (accel_find(*tmp)) {
2782 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2783 } else {
2784 init_failed = true;
2785 error_report("invalid accelerator %s", *tmp);
2786 }
2787 }
2788 g_strfreev(accel_list);
2789 } else {
2790 if (accel != NULL) {
2791 error_report("The -accel and \"-machine accel=\" options are incompatible");
2792 exit(1);
2793 }
2794 }
2795
2796 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2797 do_configure_accelerator, &init_failed, &error_fatal)) {
2798 if (!init_failed) {
2799 error_report("no accelerator found");
2800 }
2801 exit(1);
2802 }
2803
2804 if (init_failed) {
2805 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2806 error_report("falling back to %s", ac->name);
2807 }
2808
2809 if (use_icount && !(tcg_enabled() || qtest_enabled())) {
2810 error_report("-icount is not allowed with hardware virtualization");
2811 exit(1);
2812 }
2813 }
2814
2815 static void create_default_memdev(MachineState *ms, const char *path)
2816 {
2817 Object *obj;
2818 MachineClass *mc = MACHINE_GET_CLASS(ms);
2819
2820 obj = object_new(path ? TYPE_MEMORY_BACKEND_FILE : TYPE_MEMORY_BACKEND_RAM);
2821 if (path) {
2822 object_property_set_str(obj, "mem-path", path, &error_fatal);
2823 }
2824 object_property_set_int(obj, "size", ms->ram_size, &error_fatal);
2825 object_property_add_child(object_get_objects_root(), mc->default_ram_id,
2826 obj);
2827 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2828 object_property_set_bool(obj, "x-use-canonical-path-for-ramblock-id",
2829 false, &error_fatal);
2830 user_creatable_complete(USER_CREATABLE(obj), &error_fatal);
2831 object_unref(obj);
2832 object_property_set_str(OBJECT(ms), "memory-backend", mc->default_ram_id,
2833 &error_fatal);
2834 }
2835
2836 void qemu_init(int argc, char **argv, char **envp)
2837 {
2838 int i;
2839 int snapshot, linux_boot;
2840 const char *initrd_filename;
2841 const char *kernel_filename, *kernel_cmdline;
2842 const char *boot_order = NULL;
2843 const char *boot_once = NULL;
2844 DisplayState *ds;
2845 QemuOpts *opts, *machine_opts;
2846 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2847 QemuOptsList *olist;
2848 int optind;
2849 const char *optarg;
2850 const char *loadvm = NULL;
2851 MachineClass *machine_class;
2852 const char *cpu_option;
2853 const char *vga_model = NULL;
2854 const char *qtest_chrdev = NULL;
2855 const char *qtest_log = NULL;
2856 const char *incoming = NULL;
2857 bool userconfig = true;
2858 bool nographic = false;
2859 int display_remote = 0;
2860 const char *log_mask = NULL;
2861 const char *log_file = NULL;
2862 char *trace_file = NULL;
2863 ram_addr_t maxram_size;
2864 uint64_t ram_slots = 0;
2865 FILE *vmstate_dump_file = NULL;
2866 Error *main_loop_err = NULL;
2867 Error *err = NULL;
2868 bool list_data_dirs = false;
2869 char *dir, **dirs;
2870 const char *mem_path = NULL;
2871 bool have_custom_ram_size;
2872 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2873 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2874 int mem_prealloc = 0; /* force preallocation of physical target memory */
2875
2876 os_set_line_buffering();
2877
2878 error_init(argv[0]);
2879 module_call_init(MODULE_INIT_TRACE);
2880
2881 qemu_init_cpu_list();
2882 qemu_init_cpu_loop();
2883
2884 qemu_mutex_lock_iothread();
2885
2886 atexit(qemu_run_exit_notifiers);
2887 qemu_init_exec_dir(argv[0]);
2888
2889 module_call_init(MODULE_INIT_QOM);
2890 module_call_init(MODULE_INIT_MIGRATION);
2891
2892 qemu_add_opts(&qemu_drive_opts);
2893 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2894 qemu_add_drive_opts(&qemu_common_drive_opts);
2895 qemu_add_drive_opts(&qemu_drive_opts);
2896 qemu_add_drive_opts(&bdrv_runtime_opts);
2897 qemu_add_opts(&qemu_chardev_opts);
2898 qemu_add_opts(&qemu_device_opts);
2899 qemu_add_opts(&qemu_netdev_opts);
2900 qemu_add_opts(&qemu_nic_opts);
2901 qemu_add_opts(&qemu_net_opts);
2902 qemu_add_opts(&qemu_rtc_opts);
2903 qemu_add_opts(&qemu_global_opts);
2904 qemu_add_opts(&qemu_mon_opts);
2905 qemu_add_opts(&qemu_trace_opts);
2906 qemu_plugin_add_opts();
2907 qemu_add_opts(&qemu_option_rom_opts);
2908 qemu_add_opts(&qemu_machine_opts);
2909 qemu_add_opts(&qemu_accel_opts);
2910 qemu_add_opts(&qemu_mem_opts);
2911 qemu_add_opts(&qemu_smp_opts);
2912 qemu_add_opts(&qemu_boot_opts);
2913 qemu_add_opts(&qemu_add_fd_opts);
2914 qemu_add_opts(&qemu_object_opts);
2915 qemu_add_opts(&qemu_tpmdev_opts);
2916 qemu_add_opts(&qemu_realtime_opts);
2917 qemu_add_opts(&qemu_overcommit_opts);
2918 qemu_add_opts(&qemu_msg_opts);
2919 qemu_add_opts(&qemu_name_opts);
2920 qemu_add_opts(&qemu_numa_opts);
2921 qemu_add_opts(&qemu_icount_opts);
2922 qemu_add_opts(&qemu_semihosting_config_opts);
2923 qemu_add_opts(&qemu_fw_cfg_opts);
2924 module_call_init(MODULE_INIT_OPTS);
2925
2926 runstate_init();
2927 precopy_infrastructure_init();
2928 postcopy_infrastructure_init();
2929 monitor_init_globals();
2930
2931 if (qcrypto_init(&err) < 0) {
2932 error_reportf_err(err, "cannot initialize crypto: ");
2933 exit(1);
2934 }
2935
2936 QTAILQ_INIT(&vm_change_state_head);
2937 os_setup_early_signal_handling();
2938
2939 cpu_option = NULL;
2940 snapshot = 0;
2941
2942 nb_nics = 0;
2943
2944 bdrv_init_with_whitelist();
2945
2946 autostart = 1;
2947
2948 /* first pass of option parsing */
2949 optind = 1;
2950 while (optind < argc) {
2951 if (argv[optind][0] != '-') {
2952 /* disk image */
2953 optind++;
2954 } else {
2955 const QEMUOption *popt;
2956
2957 popt = lookup_opt(argc, argv, &optarg, &optind);
2958 switch (popt->index) {
2959 case QEMU_OPTION_nouserconfig:
2960 userconfig = false;
2961 break;
2962 }
2963 }
2964 }
2965
2966 if (userconfig) {
2967 if (qemu_read_default_config_file() < 0) {
2968 exit(1);
2969 }
2970 }
2971
2972 /* second pass of option parsing */
2973 optind = 1;
2974 for(;;) {
2975 if (optind >= argc)
2976 break;
2977 if (argv[optind][0] != '-') {
2978 loc_set_cmdline(argv, optind, 1);
2979 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2980 } else {
2981 const QEMUOption *popt;
2982
2983 popt = lookup_opt(argc, argv, &optarg, &optind);
2984 if (!(popt->arch_mask & arch_type)) {
2985 error_report("Option not supported for this target");
2986 exit(1);
2987 }
2988 switch(popt->index) {
2989 case QEMU_OPTION_cpu:
2990 /* hw initialization will check this */
2991 cpu_option = optarg;
2992 break;
2993 case QEMU_OPTION_hda:
2994 case QEMU_OPTION_hdb:
2995 case QEMU_OPTION_hdc:
2996 case QEMU_OPTION_hdd:
2997 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2998 HD_OPTS);
2999 break;
3000 case QEMU_OPTION_blockdev:
3001 {
3002 Visitor *v;
3003 BlockdevOptionsQueueEntry *bdo;
3004
3005 v = qobject_input_visitor_new_str(optarg, "driver",
3006 &error_fatal);
3007
3008 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3009 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3010 &error_fatal);
3011 visit_free(v);
3012 loc_save(&bdo->loc);
3013 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3014 break;
3015 }
3016 case QEMU_OPTION_drive:
3017 if (drive_def(optarg) == NULL) {
3018 exit(1);
3019 }
3020 break;
3021 case QEMU_OPTION_set:
3022 if (qemu_set_option(optarg) != 0)
3023 exit(1);
3024 break;
3025 case QEMU_OPTION_global:
3026 if (qemu_global_option(optarg) != 0)
3027 exit(1);
3028 break;
3029 case QEMU_OPTION_mtdblock:
3030 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3031 break;
3032 case QEMU_OPTION_sd:
3033 drive_add(IF_SD, -1, optarg, SD_OPTS);
3034 break;
3035 case QEMU_OPTION_pflash:
3036 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3037 break;
3038 case QEMU_OPTION_snapshot:
3039 {
3040 Error *blocker = NULL;
3041 snapshot = 1;
3042 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3043 "-snapshot");
3044 replay_add_blocker(blocker);
3045 }
3046 break;
3047 case QEMU_OPTION_numa:
3048 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3049 optarg, true);
3050 if (!opts) {
3051 exit(1);
3052 }
3053 break;
3054 case QEMU_OPTION_display:
3055 parse_display(optarg);
3056 break;
3057 case QEMU_OPTION_nographic:
3058 olist = qemu_find_opts("machine");
3059 qemu_opts_parse_noisily(olist, "graphics=off", false);
3060 nographic = true;
3061 dpy.type = DISPLAY_TYPE_NONE;
3062 break;
3063 case QEMU_OPTION_curses:
3064 #ifdef CONFIG_CURSES
3065 dpy.type = DISPLAY_TYPE_CURSES;
3066 #else
3067 error_report("curses or iconv support is disabled");
3068 exit(1);
3069 #endif
3070 break;
3071 case QEMU_OPTION_portrait:
3072 graphic_rotate = 90;
3073 break;
3074 case QEMU_OPTION_rotate:
3075 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3076 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3077 graphic_rotate != 180 && graphic_rotate != 270) {
3078 error_report("only 90, 180, 270 deg rotation is available");
3079 exit(1);
3080 }
3081 break;
3082 case QEMU_OPTION_kernel:
3083 qemu_opts_set(qemu_find_opts("machine"), NULL, "kernel", optarg,
3084 &error_abort);
3085 break;
3086 case QEMU_OPTION_initrd:
3087 qemu_opts_set(qemu_find_opts("machine"), NULL, "initrd", optarg,
3088 &error_abort);
3089 break;
3090 case QEMU_OPTION_append:
3091 qemu_opts_set(qemu_find_opts("machine"), NULL, "append", optarg,
3092 &error_abort);
3093 break;
3094 case QEMU_OPTION_dtb:
3095 qemu_opts_set(qemu_find_opts("machine"), NULL, "dtb", optarg,
3096 &error_abort);
3097 break;
3098 case QEMU_OPTION_cdrom:
3099 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3100 break;
3101 case QEMU_OPTION_boot:
3102 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3103 optarg, true);
3104 if (!opts) {
3105 exit(1);
3106 }
3107 break;
3108 case QEMU_OPTION_fda:
3109 case QEMU_OPTION_fdb:
3110 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3111 optarg, FD_OPTS);
3112 break;
3113 case QEMU_OPTION_no_fd_bootchk:
3114 fd_bootchk = 0;
3115 break;
3116 case QEMU_OPTION_netdev:
3117 default_net = 0;
3118 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3119 exit(1);
3120 }
3121 break;
3122 case QEMU_OPTION_nic:
3123 default_net = 0;
3124 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3125 exit(1);
3126 }
3127 break;
3128 case QEMU_OPTION_net:
3129 default_net = 0;
3130 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3131 exit(1);
3132 }
3133 break;
3134 #ifdef CONFIG_LIBISCSI
3135 case QEMU_OPTION_iscsi:
3136 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3137 optarg, false);
3138 if (!opts) {
3139 exit(1);
3140 }
3141 break;
3142 #endif
3143 case QEMU_OPTION_audio_help:
3144 audio_legacy_help();
3145 exit (0);
3146 break;
3147 case QEMU_OPTION_audiodev:
3148 audio_parse_option(optarg);
3149 break;
3150 case QEMU_OPTION_soundhw:
3151 select_soundhw (optarg);
3152 break;
3153 case QEMU_OPTION_h:
3154 help(0);
3155 break;
3156 case QEMU_OPTION_version:
3157 version();
3158 exit(0);
3159 break;
3160 case QEMU_OPTION_m:
3161 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3162 optarg, true);
3163 if (!opts) {
3164 exit(EXIT_FAILURE);
3165 }
3166 break;
3167 #ifdef CONFIG_TPM
3168 case QEMU_OPTION_tpmdev:
3169 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3170 exit(1);
3171 }
3172 break;
3173 #endif
3174 case QEMU_OPTION_mempath:
3175 mem_path = optarg;
3176 break;
3177 case QEMU_OPTION_mem_prealloc:
3178 mem_prealloc = 1;
3179 break;
3180 case QEMU_OPTION_d:
3181 log_mask = optarg;
3182 break;
3183 case QEMU_OPTION_D:
3184 log_file = optarg;
3185 break;
3186 case QEMU_OPTION_DFILTER:
3187 qemu_set_dfilter_ranges(optarg, &error_fatal);
3188 break;
3189 case QEMU_OPTION_seed:
3190 qemu_guest_random_seed_main(optarg, &error_fatal);
3191 break;
3192 case QEMU_OPTION_s:
3193 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3194 break;
3195 case QEMU_OPTION_gdb:
3196 add_device_config(DEV_GDB, optarg);
3197 break;
3198 case QEMU_OPTION_L:
3199 if (is_help_option(optarg)) {
3200 list_data_dirs = true;
3201 } else {
3202 qemu_add_data_dir(optarg);
3203 }
3204 break;
3205 case QEMU_OPTION_bios:
3206 qemu_opts_set(qemu_find_opts("machine"), NULL, "firmware", optarg,
3207 &error_abort);
3208 break;
3209 case QEMU_OPTION_singlestep:
3210 singlestep = 1;
3211 break;
3212 case QEMU_OPTION_S:
3213 autostart = 0;
3214 break;
3215 case QEMU_OPTION_k:
3216 keyboard_layout = optarg;
3217 break;
3218 case QEMU_OPTION_vga:
3219 vga_model = optarg;
3220 default_vga = 0;
3221 break;
3222 case QEMU_OPTION_g:
3223 {
3224 const char *p;
3225 int w, h, depth;
3226 p = optarg;
3227 w = strtol(p, (char **)&p, 10);
3228 if (w <= 0) {
3229 graphic_error:
3230 error_report("invalid resolution or depth");
3231 exit(1);
3232 }
3233 if (*p != 'x')
3234 goto graphic_error;
3235 p++;
3236 h = strtol(p, (char **)&p, 10);
3237 if (h <= 0)
3238 goto graphic_error;
3239 if (*p == 'x') {
3240 p++;
3241 depth = strtol(p, (char **)&p, 10);
3242 if (depth != 1 && depth != 2 && depth != 4 &&
3243 depth != 8 && depth != 15 && depth != 16 &&
3244 depth != 24 && depth != 32)
3245 goto graphic_error;
3246 } else if (*p == '\0') {
3247 depth = graphic_depth;
3248 } else {
3249 goto graphic_error;
3250 }
3251
3252 graphic_width = w;
3253 graphic_height = h;
3254 graphic_depth = depth;
3255 }
3256 break;
3257 case QEMU_OPTION_echr:
3258 {
3259 char *r;
3260 term_escape_char = strtol(optarg, &r, 0);
3261 if (r == optarg)
3262 printf("Bad argument to echr\n");
3263 break;
3264 }
3265 case QEMU_OPTION_monitor:
3266 default_monitor = 0;
3267 if (strncmp(optarg, "none", 4)) {
3268 monitor_parse(optarg, "readline", false);
3269 }
3270 break;
3271 case QEMU_OPTION_qmp:
3272 monitor_parse(optarg, "control", false);
3273 default_monitor = 0;
3274 break;
3275 case QEMU_OPTION_qmp_pretty:
3276 monitor_parse(optarg, "control", true);
3277 default_monitor = 0;
3278 break;
3279 case QEMU_OPTION_mon:
3280 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3281 true);
3282 if (!opts) {
3283 exit(1);
3284 }
3285 default_monitor = 0;
3286 break;
3287 case QEMU_OPTION_chardev:
3288 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3289 optarg, true);
3290 if (!opts) {
3291 exit(1);
3292 }
3293 break;
3294 case QEMU_OPTION_fsdev:
3295 olist = qemu_find_opts("fsdev");
3296 if (!olist) {
3297 error_report("fsdev support is disabled");
3298 exit(1);
3299 }
3300 opts = qemu_opts_parse_noisily(olist, optarg, true);
3301 if (!opts) {
3302 exit(1);
3303 }
3304 break;
3305 case QEMU_OPTION_virtfs: {
3306 QemuOpts *fsdev;
3307 QemuOpts *device;
3308 const char *writeout, *sock_fd, *socket, *path, *security_model,
3309 *multidevs;
3310
3311 olist = qemu_find_opts("virtfs");
3312 if (!olist) {
3313 error_report("virtfs support is disabled");
3314 exit(1);
3315 }
3316 opts = qemu_opts_parse_noisily(olist, optarg, true);
3317 if (!opts) {
3318 exit(1);
3319 }
3320
3321 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3322 qemu_opt_get(opts, "mount_tag") == NULL) {
3323 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3324 exit(1);
3325 }
3326 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3327 qemu_opts_id(opts) ?:
3328 qemu_opt_get(opts, "mount_tag"),
3329 1, NULL);
3330 if (!fsdev) {
3331 error_report("duplicate or invalid fsdev id: %s",
3332 qemu_opt_get(opts, "mount_tag"));
3333 exit(1);
3334 }
3335
3336 writeout = qemu_opt_get(opts, "writeout");
3337 if (writeout) {
3338 #ifdef CONFIG_SYNC_FILE_RANGE
3339 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3340 #else
3341 error_report("writeout=immediate not supported "
3342 "on this platform");
3343 exit(1);
3344 #endif
3345 }
3346 qemu_opt_set(fsdev, "fsdriver",
3347 qemu_opt_get(opts, "fsdriver"), &error_abort);
3348 path = qemu_opt_get(opts, "path");
3349 if (path) {
3350 qemu_opt_set(fsdev, "path", path, &error_abort);
3351 }
3352 security_model = qemu_opt_get(opts, "security_model");
3353 if (security_model) {
3354 qemu_opt_set(fsdev, "security_model", security_model,
3355 &error_abort);
3356 }
3357 socket = qemu_opt_get(opts, "socket");
3358 if (socket) {
3359 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3360 }
3361 sock_fd = qemu_opt_get(opts, "sock_fd");
3362 if (sock_fd) {
3363 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3364 }
3365
3366 qemu_opt_set_bool(fsdev, "readonly",
3367 qemu_opt_get_bool(opts, "readonly", 0),
3368 &error_abort);
3369 multidevs = qemu_opt_get(opts, "multidevs");
3370 if (multidevs) {
3371 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3372 }
3373 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3374 &error_abort);
3375 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3376 qemu_opt_set(device, "fsdev",
3377 qemu_opts_id(fsdev), &error_abort);
3378 qemu_opt_set(device, "mount_tag",
3379 qemu_opt_get(opts, "mount_tag"), &error_abort);
3380 break;
3381 }
3382 case QEMU_OPTION_serial:
3383 add_device_config(DEV_SERIAL, optarg);
3384 default_serial = 0;
3385 if (strncmp(optarg, "mon:", 4) == 0) {
3386 default_monitor = 0;
3387 }
3388 break;
3389 case QEMU_OPTION_watchdog:
3390 if (watchdog) {
3391 error_report("only one watchdog option may be given");
3392 exit(1);
3393 }
3394 watchdog = optarg;
3395 break;
3396 case QEMU_OPTION_watchdog_action:
3397 if (select_watchdog_action(optarg) == -1) {
3398 error_report("unknown -watchdog-action parameter");
3399 exit(1);
3400 }
3401 break;
3402 case QEMU_OPTION_parallel:
3403 add_device_config(DEV_PARALLEL, optarg);
3404 default_parallel = 0;
3405 if (strncmp(optarg, "mon:", 4) == 0) {
3406 default_monitor = 0;
3407 }
3408 break;
3409 case QEMU_OPTION_debugcon:
3410 add_device_config(DEV_DEBUGCON, optarg);
3411 break;
3412 case QEMU_OPTION_loadvm:
3413 loadvm = optarg;
3414 break;
3415 case QEMU_OPTION_full_screen:
3416 dpy.has_full_screen = true;
3417 dpy.full_screen = true;
3418 break;
3419 case QEMU_OPTION_alt_grab:
3420 alt_grab = 1;
3421 break;
3422 case QEMU_OPTION_ctrl_grab:
3423 ctrl_grab = 1;
3424 break;
3425 case QEMU_OPTION_no_quit:
3426 dpy.has_window_close = true;
3427 dpy.window_close = false;
3428 break;
3429 case QEMU_OPTION_sdl:
3430 #ifdef CONFIG_SDL
3431 dpy.type = DISPLAY_TYPE_SDL;
3432 break;
3433 #else
3434 error_report("SDL support is disabled");
3435 exit(1);
3436 #endif
3437 case QEMU_OPTION_pidfile:
3438 pid_file = optarg;
3439 break;
3440 case QEMU_OPTION_win2k_hack:
3441 win2k_install_hack = 1;
3442 break;
3443 case QEMU_OPTION_acpitable:
3444 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3445 optarg, true);
3446 if (!opts) {
3447 exit(1);
3448 }
3449 acpi_table_add(opts, &error_fatal);
3450 break;
3451 case QEMU_OPTION_smbios:
3452 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3453 optarg, false);
3454 if (!opts) {
3455 exit(1);
3456 }
3457 smbios_entry_add(opts, &error_fatal);
3458 break;
3459 case QEMU_OPTION_fwcfg:
3460 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3461 optarg, true);
3462 if (opts == NULL) {
3463 exit(1);
3464 }
3465 break;
3466 case QEMU_OPTION_preconfig:
3467 preconfig_exit_requested = false;
3468 break;
3469 case QEMU_OPTION_enable_kvm:
3470 olist = qemu_find_opts("machine");
3471 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3472 break;
3473 case QEMU_OPTION_M:
3474 case QEMU_OPTION_machine:
3475 olist = qemu_find_opts("machine");
3476 opts = qemu_opts_parse_noisily(olist, optarg, true);
3477 if (!opts) {
3478 exit(1);
3479 }
3480 break;
3481 case QEMU_OPTION_no_kvm:
3482 olist = qemu_find_opts("machine");
3483 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3484 break;
3485 case QEMU_OPTION_accel:
3486 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3487 optarg, true);
3488 optarg = qemu_opt_get(accel_opts, "accel");
3489 if (!optarg || is_help_option(optarg)) {
3490 printf("Accelerators supported in QEMU binary:\n");
3491 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3492 false);
3493 for (el = accel_list; el; el = el->next) {
3494 gchar *typename = g_strdup(object_class_get_name(
3495 OBJECT_CLASS(el->data)));
3496 /* omit qtest which is used for tests only */
3497 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3498 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3499 gchar **optname = g_strsplit(typename,
3500 ACCEL_CLASS_SUFFIX, 0);
3501 printf("%s\n", optname[0]);
3502 g_strfreev(optname);
3503 }
3504 g_free(typename);
3505 }
3506 g_slist_free(accel_list);
3507 exit(0);
3508 }
3509 if (optarg && strchr(optarg, ':')) {
3510 error_report("Don't use ':' with -accel, "
3511 "use -M accel=... for now instead");
3512 exit(1);
3513 }
3514 break;
3515 case QEMU_OPTION_usb:
3516 olist = qemu_find_opts("machine");
3517 qemu_opts_parse_noisily(olist, "usb=on", false);
3518 break;
3519 case QEMU_OPTION_usbdevice:
3520 error_report("'-usbdevice' is deprecated, please use "
3521 "'-device usb-...' instead");
3522 olist = qemu_find_opts("machine");
3523 qemu_opts_parse_noisily(olist, "usb=on", false);
3524 add_device_config(DEV_USB, optarg);
3525 break;
3526 case QEMU_OPTION_device:
3527 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3528 optarg, true)) {
3529 exit(1);
3530 }
3531 break;
3532 case QEMU_OPTION_smp:
3533 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3534 optarg, true)) {
3535 exit(1);
3536 }
3537 break;
3538 case QEMU_OPTION_vnc:
3539 vnc_parse(optarg, &error_fatal);
3540 break;
3541 case QEMU_OPTION_no_acpi:
3542 olist = qemu_find_opts("machine");
3543 qemu_opts_parse_noisily(olist, "acpi=off", false);
3544 break;
3545 case QEMU_OPTION_no_hpet:
3546 no_hpet = 1;
3547 break;
3548 case QEMU_OPTION_no_reboot:
3549 no_reboot = 1;
3550 break;
3551 case QEMU_OPTION_no_shutdown:
3552 no_shutdown = 1;
3553 break;
3554 case QEMU_OPTION_show_cursor:
3555 warn_report("The -show-cursor option is deprecated. Please "
3556 "add show-cursor=on to your -display options.");
3557 warn_report("When using the default display you can use "
3558 "-display default,show-cursor=on");
3559 dpy.has_show_cursor = true;
3560 dpy.show_cursor = true;
3561 break;
3562 case QEMU_OPTION_uuid:
3563 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3564 error_report("failed to parse UUID string: wrong format");
3565 exit(1);
3566 }
3567 qemu_uuid_set = true;
3568 break;
3569 case QEMU_OPTION_option_rom:
3570 if (nb_option_roms >= MAX_OPTION_ROMS) {
3571 error_report("too many option ROMs");
3572 exit(1);
3573 }
3574 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3575 optarg, true);
3576 if (!opts) {
3577 exit(1);
3578 }
3579 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3580 option_rom[nb_option_roms].bootindex =
3581 qemu_opt_get_number(opts, "bootindex", -1);
3582 if (!option_rom[nb_option_roms].name) {
3583 error_report("Option ROM file is not specified");
3584 exit(1);
3585 }
3586 nb_option_roms++;
3587 break;
3588 case QEMU_OPTION_semihosting:
3589 qemu_semihosting_enable();
3590 break;
3591 case QEMU_OPTION_semihosting_config:
3592 if (qemu_semihosting_config_options(optarg) != 0) {
3593 exit(1);
3594 }
3595 break;
3596 case QEMU_OPTION_name:
3597 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3598 optarg, true);
3599 if (!opts) {
3600 exit(1);
3601 }
3602 /* Capture guest name if -msg guest-name is used later */
3603 error_guest_name = qemu_opt_get(opts, "guest");
3604 break;
3605 case QEMU_OPTION_prom_env:
3606 if (nb_prom_envs >= MAX_PROM_ENVS) {
3607 error_report("too many prom variables");
3608 exit(1);
3609 }
3610 prom_envs[nb_prom_envs] = optarg;
3611 nb_prom_envs++;
3612 break;
3613 case QEMU_OPTION_old_param:
3614 old_param = 1;
3615 break;
3616 case QEMU_OPTION_rtc:
3617 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3618 false);
3619 if (!opts) {
3620 exit(1);
3621 }
3622 break;
3623 case QEMU_OPTION_tb_size:
3624 #ifndef CONFIG_TCG
3625 error_report("TCG is disabled");
3626 exit(1);
3627 #endif
3628 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3629 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3630 break;
3631 case QEMU_OPTION_icount:
3632 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3633 optarg, true);
3634 if (!icount_opts) {
3635 exit(1);
3636 }
3637 break;
3638 case QEMU_OPTION_incoming:
3639 if (!incoming) {
3640 runstate_set(RUN_STATE_INMIGRATE);
3641 }
3642 incoming = optarg;
3643 break;
3644 case QEMU_OPTION_only_migratable:
3645 only_migratable = 1;
3646 break;
3647 case QEMU_OPTION_nodefaults:
3648 has_defaults = 0;
3649 break;
3650 case QEMU_OPTION_xen_domid:
3651 if (!(xen_available())) {
3652 error_report("Option not supported for this target");
3653 exit(1);
3654 }
3655 xen_domid = atoi(optarg);
3656 break;
3657 case QEMU_OPTION_xen_attach:
3658 if (!(xen_available())) {
3659 error_report("Option not supported for this target");
3660 exit(1);
3661 }
3662 xen_mode = XEN_ATTACH;
3663 break;
3664 case QEMU_OPTION_xen_domid_restrict:
3665 if (!(xen_available())) {
3666 error_report("Option not supported for this target");
3667 exit(1);
3668 }
3669 xen_domid_restrict = true;
3670 break;
3671 case QEMU_OPTION_trace:
3672 g_free(trace_file);
3673 trace_file = trace_opt_parse(optarg);
3674 break;
3675 case QEMU_OPTION_plugin:
3676 qemu_plugin_opt_parse(optarg, &plugin_list);
3677 break;
3678 case QEMU_OPTION_readconfig:
3679 {
3680 int ret = qemu_read_config_file(optarg);
3681 if (ret < 0) {
3682 error_report("read config %s: %s", optarg,
3683 strerror(-ret));
3684 exit(1);
3685 }
3686 break;
3687 }
3688 case QEMU_OPTION_spice:
3689 olist = qemu_find_opts("spice");
3690 if (!olist) {
3691 error_report("spice support is disabled");
3692 exit(1);
3693 }
3694 opts = qemu_opts_parse_noisily(olist, optarg, false);
3695 if (!opts) {
3696 exit(1);
3697 }
3698 display_remote++;
3699 break;
3700 case QEMU_OPTION_writeconfig:
3701 {
3702 FILE *fp;
3703 if (strcmp(optarg, "-") == 0) {
3704 fp = stdout;
3705 } else {
3706 fp = fopen(optarg, "w");
3707 if (fp == NULL) {
3708 error_report("open %s: %s", optarg,
3709 strerror(errno));
3710 exit(1);
3711 }
3712 }
3713 qemu_config_write(fp);
3714 if (fp != stdout) {
3715 fclose(fp);
3716 }
3717 break;
3718 }
3719 case QEMU_OPTION_qtest:
3720 qtest_chrdev = optarg;
3721 break;
3722 case QEMU_OPTION_qtest_log:
3723 qtest_log = optarg;
3724 break;
3725 case QEMU_OPTION_sandbox:
3726 olist = qemu_find_opts("sandbox");
3727 if (!olist) {
3728 #ifndef CONFIG_SECCOMP
3729 error_report("-sandbox support is not enabled "
3730 "in this QEMU binary");
3731 #endif
3732 exit(1);
3733 }
3734
3735 opts = qemu_opts_parse_noisily(olist, optarg, true);
3736 if (!opts) {
3737 exit(1);
3738 }
3739 break;
3740 case QEMU_OPTION_add_fd:
3741 #ifndef _WIN32
3742 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3743 optarg, false);
3744 if (!opts) {
3745 exit(1);
3746 }
3747 #else
3748 error_report("File descriptor passing is disabled on this "
3749 "platform");
3750 exit(1);
3751 #endif
3752 break;
3753 case QEMU_OPTION_object:
3754 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3755 optarg, true);
3756 if (!opts) {
3757 exit(1);
3758 }
3759 break;
3760 case QEMU_OPTION_realtime:
3761 warn_report("'-realtime mlock=...' is deprecated, please use "
3762 "'-overcommit mem-lock=...' instead");
3763 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3764 optarg, false);
3765 if (!opts) {
3766 exit(1);
3767 }
3768 /* Don't override the -overcommit option if set */
3769 enable_mlock = enable_mlock ||
3770 qemu_opt_get_bool(opts, "mlock", true);
3771 break;
3772 case QEMU_OPTION_overcommit:
3773 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3774 optarg, false);
3775 if (!opts) {
3776 exit(1);
3777 }
3778 /* Don't override the -realtime option if set */
3779 enable_mlock = enable_mlock ||
3780 qemu_opt_get_bool(opts, "mem-lock", false);
3781 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3782 break;
3783 case QEMU_OPTION_msg:
3784 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3785 false);
3786 if (!opts) {
3787 exit(1);
3788 }
3789 configure_msg(opts);
3790 break;
3791 case QEMU_OPTION_dump_vmstate:
3792 if (vmstate_dump_file) {
3793 error_report("only one '-dump-vmstate' "
3794 "option may be given");
3795 exit(1);
3796 }
3797 vmstate_dump_file = fopen(optarg, "w");
3798 if (vmstate_dump_file == NULL) {
3799 error_report("open %s: %s", optarg, strerror(errno));
3800 exit(1);
3801 }
3802 break;
3803 case QEMU_OPTION_enable_sync_profile:
3804 qsp_enable();
3805 break;
3806 case QEMU_OPTION_nouserconfig:
3807 /* Nothing to be parsed here. Especially, do not error out below. */
3808 break;
3809 default:
3810 if (os_parse_cmd_args(popt->index, optarg)) {
3811 error_report("Option not supported in this build");
3812 exit(1);
3813 }
3814 }
3815 }
3816 }
3817 /*
3818 * Clear error location left behind by the loop.
3819 * Best done right after the loop. Do not insert code here!
3820 */
3821 loc_set_none();
3822
3823 /*
3824 * Check for -cpu help and -device help before we call select_machine(),
3825 * which will return an error if the architecture has no default machine
3826 * type and the user did not specify one, so that the user doesn't need
3827 * to say '-cpu help -machine something'.
3828 */
3829 if (cpu_option && is_help_option(cpu_option)) {
3830 list_cpus(cpu_option);
3831 exit(0);
3832 }
3833
3834 if (qemu_opts_foreach(qemu_find_opts("device"),
3835 device_help_func, NULL, NULL)) {
3836 exit(0);
3837 }
3838
3839 user_register_global_props();
3840
3841 replay_configure(icount_opts);
3842
3843 if (incoming && !preconfig_exit_requested) {
3844 error_report("'preconfig' and 'incoming' options are "
3845 "mutually exclusive");
3846 exit(EXIT_FAILURE);
3847 }
3848
3849 configure_rtc(qemu_find_opts_singleton("rtc"));
3850
3851 machine_class = select_machine();
3852 object_set_machine_compat_props(machine_class->compat_props);
3853
3854 have_custom_ram_size = set_memory_options(&ram_slots, &maxram_size,
3855 machine_class);
3856
3857 os_daemonize();
3858 rcu_disable_atfork();
3859
3860 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3861 error_reportf_err(err, "cannot create PID file: ");
3862 exit(1);
3863 }
3864
3865 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3866 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3867
3868 if (qemu_init_main_loop(&main_loop_err)) {
3869 error_report_err(main_loop_err);
3870 exit(1);
3871 }
3872
3873 #ifdef CONFIG_SECCOMP
3874 olist = qemu_find_opts_err("sandbox", NULL);
3875 if (olist) {
3876 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3877 }
3878 #endif
3879
3880 qemu_opts_foreach(qemu_find_opts("name"),
3881 parse_name, NULL, &error_fatal);
3882
3883 #ifndef _WIN32
3884 qemu_opts_foreach(qemu_find_opts("add-fd"),
3885 parse_add_fd, NULL, &error_fatal);
3886
3887 qemu_opts_foreach(qemu_find_opts("add-fd"),
3888 cleanup_add_fd, NULL, &error_fatal);
3889 #endif
3890
3891 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3892 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3893 exit(0);
3894 }
3895 object_property_add_child(object_get_root(), "machine",
3896 OBJECT(current_machine));
3897 object_property_add_child(container_get(OBJECT(current_machine),
3898 "/unattached"),
3899 "sysbus", OBJECT(sysbus_get_default()));
3900
3901 if (machine_class->minimum_page_bits) {
3902 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3903 /* This would be a board error: specifying a minimum smaller than
3904 * a target's compile-time fixed setting.
3905 */
3906 g_assert_not_reached();
3907 }
3908 }
3909
3910 cpu_exec_init_all();
3911
3912 if (machine_class->hw_version) {
3913 qemu_set_hw_version(machine_class->hw_version);
3914 }
3915
3916 if (!trace_init_backends()) {
3917 exit(1);
3918 }
3919 trace_init_file(trace_file);
3920
3921 /* Open the logfile at this point and set the log mask if necessary.
3922 */
3923 qemu_set_log_filename(log_file, &error_fatal);
3924 if (log_mask) {
3925 int mask;
3926 mask = qemu_str_to_log_mask(log_mask);
3927 if (!mask) {
3928 qemu_print_log_usage(stdout);
3929 exit(1);
3930 }
3931 qemu_set_log(mask);
3932 } else {
3933 qemu_set_log(0);
3934 }
3935
3936 /* add configured firmware directories */
3937 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3938 for (i = 0; dirs[i] != NULL; i++) {
3939 qemu_add_data_dir(dirs[i]);
3940 }
3941 g_strfreev(dirs);
3942
3943 /* try to find datadir relative to the executable path */
3944 dir = os_find_datadir();
3945 qemu_add_data_dir(dir);
3946 g_free(dir);
3947
3948 /* add the datadir specified when building */
3949 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3950
3951 /* -L help lists the data directories and exits. */
3952 if (list_data_dirs) {
3953 for (i = 0; i < data_dir_idx; i++) {
3954 printf("%s\n", data_dir[i]);
3955 }
3956 exit(0);
3957 }
3958
3959 /* machine_class: default to UP */
3960 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3961 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3962 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3963
3964 /* default to machine_class->default_cpus */
3965 current_machine->smp.cpus = machine_class->default_cpus;
3966 current_machine->smp.max_cpus = machine_class->default_cpus;
3967 current_machine->smp.cores = 1;
3968 current_machine->smp.threads = 1;
3969 current_machine->smp.sockets = 1;
3970
3971 machine_class->smp_parse(current_machine,
3972 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3973
3974 /* sanity-check smp_cpus and max_cpus against machine_class */
3975 if (current_machine->smp.cpus < machine_class->min_cpus) {
3976 error_report("Invalid SMP CPUs %d. The min CPUs "
3977 "supported by machine '%s' is %d",
3978 current_machine->smp.cpus,
3979 machine_class->name, machine_class->min_cpus);
3980 exit(1);
3981 }
3982 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3983 error_report("Invalid SMP CPUs %d. The max CPUs "
3984 "supported by machine '%s' is %d",
3985 current_machine->smp.max_cpus,
3986 machine_class->name, machine_class->max_cpus);
3987 exit(1);
3988 }
3989
3990 if (mem_prealloc) {
3991 char *val;
3992
3993 val = g_strdup_printf("%d", current_machine->smp.cpus);
3994 object_register_sugar_prop("memory-backend", "prealloc-threads", val);
3995 g_free(val);
3996 object_register_sugar_prop("memory-backend", "prealloc", "on");
3997 }
3998
3999 /*
4000 * Get the default machine options from the machine if it is not already
4001 * specified either by the configuration file or by the command line.
4002 */
4003 if (machine_class->default_machine_opts) {
4004 qemu_opts_set_defaults(qemu_find_opts("machine"),
4005 machine_class->default_machine_opts, 0);
4006 }
4007
4008 /* process plugin before CPUs are created, but once -smp has been parsed */
4009 if (qemu_plugin_load_list(&plugin_list)) {
4010 exit(1);
4011 }
4012
4013 qemu_opts_foreach(qemu_find_opts("device"),
4014 default_driver_check, NULL, NULL);
4015 qemu_opts_foreach(qemu_find_opts("global"),
4016 default_driver_check, NULL, NULL);
4017
4018 if (!vga_model && !default_vga) {
4019 vga_interface_type = VGA_DEVICE;
4020 }
4021 if (!has_defaults || machine_class->no_serial) {
4022 default_serial = 0;
4023 }
4024 if (!has_defaults || machine_class->no_parallel) {
4025 default_parallel = 0;
4026 }
4027 if (!has_defaults || machine_class->no_floppy) {
4028 default_floppy = 0;
4029 }
4030 if (!has_defaults || machine_class->no_cdrom) {
4031 default_cdrom = 0;
4032 }
4033 if (!has_defaults || machine_class->no_sdcard) {
4034 default_sdcard = 0;
4035 }
4036 if (!has_defaults) {
4037 default_monitor = 0;
4038 default_net = 0;
4039 default_vga = 0;
4040 }
4041
4042 if (is_daemonized()) {
4043 if (!preconfig_exit_requested) {
4044 error_report("'preconfig' and 'daemonize' options are "
4045 "mutually exclusive");
4046 exit(EXIT_FAILURE);
4047 }
4048
4049 /* According to documentation and historically, -nographic redirects
4050 * serial port, parallel port and monitor to stdio, which does not work
4051 * with -daemonize. We can redirect these to null instead, but since
4052 * -nographic is legacy, let's just error out.
4053 * We disallow -nographic only if all other ports are not redirected
4054 * explicitly, to not break existing legacy setups which uses
4055 * -nographic _and_ redirects all ports explicitly - this is valid
4056 * usage, -nographic is just a no-op in this case.
4057 */
4058 if (nographic
4059 && (default_parallel || default_serial || default_monitor)) {
4060 error_report("-nographic cannot be used with -daemonize");
4061 exit(1);
4062 }
4063 #ifdef CONFIG_CURSES
4064 if (dpy.type == DISPLAY_TYPE_CURSES) {
4065 error_report("curses display cannot be used with -daemonize");
4066 exit(1);
4067 }
4068 #endif
4069 }
4070
4071 if (nographic) {
4072 if (default_parallel)
4073 add_device_config(DEV_PARALLEL, "null");
4074 if (default_serial && default_monitor) {
4075 add_device_config(DEV_SERIAL, "mon:stdio");
4076 } else {
4077 if (default_serial)
4078 add_device_config(DEV_SERIAL, "stdio");
4079 if (default_monitor)
4080 monitor_parse("stdio", "readline", false);
4081 }
4082 } else {
4083 if (default_serial)
4084 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4085 if (default_parallel)
4086 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4087 if (default_monitor)
4088 monitor_parse("vc:80Cx24C", "readline", false);
4089 }
4090
4091 #if defined(CONFIG_VNC)
4092 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4093 display_remote++;
4094 }
4095 #endif
4096 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4097 if (!qemu_display_find_default(&dpy)) {
4098 dpy.type = DISPLAY_TYPE_NONE;
4099 #if defined(CONFIG_VNC)
4100 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4101 #endif
4102 }
4103 }
4104 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4105 dpy.type = DISPLAY_TYPE_NONE;
4106 }
4107
4108 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4109 error_report("-alt-grab and -ctrl-grab are only valid "
4110 "for SDL, ignoring option");
4111 }
4112 if (dpy.has_window_close &&
4113 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4114 error_report("-no-quit is only valid for GTK and SDL, "
4115 "ignoring option");
4116 }
4117
4118 qemu_display_early_init(&dpy);
4119 qemu_console_early_init();
4120
4121 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4122 #if defined(CONFIG_OPENGL)
4123 error_report("OpenGL is not supported by the display");
4124 #else
4125 error_report("OpenGL support is disabled");
4126 #endif
4127 exit(1);
4128 }
4129
4130 page_size_init();
4131 socket_init();
4132
4133 qemu_opts_foreach(qemu_find_opts("object"),
4134 user_creatable_add_opts_foreach,
4135 object_create_initial, &error_fatal);
4136
4137 qemu_opts_foreach(qemu_find_opts("chardev"),
4138 chardev_init_func, NULL, &error_fatal);
4139 /* now chardevs have been created we may have semihosting to connect */
4140 qemu_semihosting_connect_chardevs();
4141
4142 #ifdef CONFIG_VIRTFS
4143 qemu_opts_foreach(qemu_find_opts("fsdev"),
4144 fsdev_init_func, NULL, &error_fatal);
4145 #endif
4146
4147 /* spice needs the timers to be initialized by this point */
4148 /* spice must initialize before audio as it changes the default auiodev */
4149 qemu_spice_init();
4150
4151 /*
4152 * Note: we need to create audio and block backends before
4153 * machine_set_property(), so machine properties can refer to
4154 * them.
4155 */
4156 configure_blockdev(&bdo_queue, machine_class, snapshot);
4157 audio_init_audiodevs();
4158
4159 machine_opts = qemu_get_machine_opts();
4160 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4161 &error_fatal);
4162 current_machine->ram_size = ram_size;
4163 current_machine->maxram_size = maxram_size;
4164 current_machine->ram_slots = ram_slots;
4165
4166 /*
4167 * Note: uses machine properties such as kernel-irqchip, must run
4168 * after machine_set_property().
4169 */
4170 configure_accelerators(argv[0]);
4171
4172 /*
4173 * Beware, QOM objects created before this point miss global and
4174 * compat properties.
4175 *
4176 * Global properties get set up by qdev_prop_register_global(),
4177 * called from user_register_global_props(), and certain option
4178 * desugaring. Also in CPU feature desugaring (buried in
4179 * parse_cpu_option()), which happens below this point, but may
4180 * only target the CPU type, which can only be created after
4181 * parse_cpu_option() returned the type.
4182 *
4183 * Machine compat properties: object_set_machine_compat_props().
4184 * Accelerator compat props: object_set_accelerator_compat_props(),
4185 * called from configure_accelerator().
4186 */
4187
4188 if (!qtest_enabled() && machine_class->deprecation_reason) {
4189 error_report("Machine type '%s' is deprecated: %s",
4190 machine_class->name, machine_class->deprecation_reason);
4191 }
4192
4193 /*
4194 * Note: creates a QOM object, must run only after global and
4195 * compat properties have been set up.
4196 */
4197 migration_object_init();
4198
4199 if (qtest_chrdev) {
4200 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4201 }
4202
4203 machine_opts = qemu_get_machine_opts();
4204 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4205 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4206 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4207 bios_name = qemu_opt_get(machine_opts, "firmware");
4208
4209 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4210 if (opts) {
4211 boot_order = qemu_opt_get(opts, "order");
4212 if (boot_order) {
4213 validate_bootdevices(boot_order, &error_fatal);
4214 }
4215
4216 boot_once = qemu_opt_get(opts, "once");
4217 if (boot_once) {
4218 validate_bootdevices(boot_once, &error_fatal);
4219 }
4220
4221 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4222 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4223 }
4224
4225 if (!boot_order) {
4226 boot_order = machine_class->default_boot_order;
4227 }
4228
4229 if (!kernel_cmdline) {
4230 kernel_cmdline = "";
4231 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4232 }
4233
4234 linux_boot = (kernel_filename != NULL);
4235
4236 if (!linux_boot && *kernel_cmdline != '\0') {
4237 error_report("-append only allowed with -kernel option");
4238 exit(1);
4239 }
4240
4241 if (!linux_boot && initrd_filename != NULL) {
4242 error_report("-initrd only allowed with -kernel option");
4243 exit(1);
4244 }
4245
4246 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4247 /* fall back to the -kernel/-append */
4248 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4249 }
4250
4251 cpu_ticks_init();
4252
4253 if (default_net) {
4254 QemuOptsList *net = qemu_find_opts("net");
4255 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4256 #ifdef CONFIG_SLIRP
4257 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4258 #endif
4259 }
4260
4261 if (net_init_clients(&err) < 0) {
4262 error_report_err(err);
4263 exit(1);
4264 }
4265
4266 qemu_opts_foreach(qemu_find_opts("object"),
4267 user_creatable_add_opts_foreach,
4268 object_create_delayed, &error_fatal);
4269
4270 tpm_init();
4271
4272 blk_mig_init();
4273 ram_mig_init();
4274 dirty_bitmap_mig_init();
4275
4276 qemu_opts_foreach(qemu_find_opts("mon"),
4277 mon_init_func, NULL, &error_fatal);
4278
4279 /* connect semihosting console input if requested */
4280 qemu_semihosting_console_init();
4281
4282 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4283 exit(1);
4284 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4285 exit(1);
4286 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4287 exit(1);
4288
4289 /* If no default VGA is requested, the default is "none". */
4290 if (default_vga) {
4291 vga_model = get_default_vga_model(machine_class);
4292 }
4293 if (vga_model) {
4294 select_vgahw(machine_class, vga_model);
4295 }
4296
4297 if (watchdog) {
4298 i = select_watchdog(watchdog);
4299 if (i > 0)
4300 exit (i == 1 ? 1 : 0);
4301 }
4302
4303 /* This checkpoint is required by replay to separate prior clock
4304 reading from the other reads, because timer polling functions query
4305 clock values from the log. */
4306 replay_checkpoint(CHECKPOINT_INIT);
4307 qdev_machine_init();
4308
4309 current_machine->boot_order = boot_order;
4310
4311 /* parse features once if machine provides default cpu_type */
4312 current_machine->cpu_type = machine_class->default_cpu_type;
4313 if (cpu_option) {
4314 current_machine->cpu_type = parse_cpu_option(cpu_option);
4315 }
4316
4317 if (current_machine->ram_memdev_id) {
4318 Object *backend;
4319 ram_addr_t backend_size;
4320
4321 backend = object_resolve_path_type(current_machine->ram_memdev_id,
4322 TYPE_MEMORY_BACKEND, NULL);
4323 if (!backend) {
4324 error_report("Memory backend '%s' not found",
4325 current_machine->ram_memdev_id);
4326 exit(EXIT_FAILURE);
4327 }
4328 backend_size = object_property_get_uint(backend, "size", &error_abort);
4329 if (have_custom_ram_size && backend_size != ram_size) {
4330 error_report("Size specified by -m option must match size of "
4331 "explicitly specified 'memory-backend' property");
4332 exit(EXIT_FAILURE);
4333 }
4334 if (mem_path) {
4335 error_report("'-mem-path' can't be used together with"
4336 "'-machine memory-backend'");
4337 exit(EXIT_FAILURE);
4338 }
4339 ram_size = backend_size;
4340 }
4341
4342 if (!xen_enabled()) {
4343 /* On 32-bit hosts, QEMU is limited by virtual address space */
4344 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4345 error_report("at most 2047 MB RAM can be simulated");
4346 exit(1);
4347 }
4348 }
4349
4350 parse_numa_opts(current_machine);
4351
4352 /* do monitor/qmp handling at preconfig state if requested */
4353 qemu_main_loop();
4354
4355 if (machine_class->default_ram_id && current_machine->ram_size &&
4356 numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
4357 create_default_memdev(current_machine, mem_path);
4358 }
4359
4360 /* from here on runstate is RUN_STATE_PRELAUNCH */
4361 machine_run_board_init(current_machine);
4362
4363 /*
4364 * TODO To drop support for deprecated bogus if=..., move
4365 * drive_check_orphaned() here, replacing this call. Also drop
4366 * its deprecation warning, along with DriveInfo member
4367 * @claimed_by_board.
4368 */
4369 drive_mark_claimed_by_board();
4370
4371 realtime_init();
4372
4373 soundhw_init();
4374
4375 if (hax_enabled()) {
4376 hax_sync_vcpus();
4377 }
4378
4379 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4380 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4381
4382 /* init USB devices */
4383 if (machine_usb(current_machine)) {
4384 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4385 exit(1);
4386 }
4387
4388 /* init generic devices */
4389 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4390 qemu_opts_foreach(qemu_find_opts("device"),
4391 device_init_func, NULL, &error_fatal);
4392
4393 cpu_synchronize_all_post_init();
4394
4395 rom_reset_order_override();
4396
4397 /* Did we create any drives that we failed to create a device for? */
4398 drive_check_orphaned();
4399
4400 /* Don't warn about the default network setup that you get if
4401 * no command line -net or -netdev options are specified. There
4402 * are two cases that we would otherwise complain about:
4403 * (1) board doesn't support a NIC but the implicit "-net nic"
4404 * requested one
4405 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4406 * sets up a nic that isn't connected to anything.
4407 */
4408 if (!default_net && (!qtest_enabled() || has_defaults)) {
4409 net_check_clients();
4410 }
4411
4412 if (boot_once) {
4413 qemu_boot_set(boot_once, &error_fatal);
4414 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4415 }
4416
4417 /* init local displays */
4418 ds = init_displaystate();
4419 qemu_display_init(ds, &dpy);
4420
4421 /* must be after terminal init, SDL library changes signal handlers */
4422 os_setup_signal_handling();
4423
4424 /* init remote displays */
4425 #ifdef CONFIG_VNC
4426 qemu_opts_foreach(qemu_find_opts("vnc"),
4427 vnc_init_func, NULL, &error_fatal);
4428 #endif
4429
4430 if (using_spice) {
4431 qemu_spice_display_init();
4432 }
4433
4434 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4435 exit(1);
4436 }
4437
4438 qdev_machine_creation_done();
4439
4440 /* TODO: once all bus devices are qdevified, this should be done
4441 * when bus is created by qdev.c */
4442 /*
4443 * TODO: If we had a main 'reset container' that the whole system
4444 * lived in, we could reset that using the multi-phase reset
4445 * APIs. For the moment, we just reset the sysbus, which will cause
4446 * all devices hanging off it (and all their child buses, recursively)
4447 * to be reset. Note that this will *not* reset any Device objects
4448 * which are not attached to some part of the qbus tree!
4449 */
4450 qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
4451 qemu_run_machine_init_done_notifiers();
4452
4453 if (rom_check_and_register_reset() != 0) {
4454 error_report("rom check and register reset failed");
4455 exit(1);
4456 }
4457
4458 replay_start();
4459
4460 /* This checkpoint is required by replay to separate prior clock
4461 reading from the other reads, because timer polling functions query
4462 clock values from the log. */
4463 replay_checkpoint(CHECKPOINT_RESET);
4464 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4465 register_global_state();
4466 if (loadvm) {
4467 Error *local_err = NULL;
4468 if (load_snapshot(loadvm, &local_err) < 0) {
4469 error_report_err(local_err);
4470 autostart = 0;
4471 exit(1);
4472 }
4473 }
4474 if (replay_mode != REPLAY_MODE_NONE) {
4475 replay_vmstate_init();
4476 }
4477
4478 qdev_prop_check_globals();
4479 if (vmstate_dump_file) {
4480 /* dump and exit */
4481 dump_vmstate_json_to_file(vmstate_dump_file);
4482 exit(0);
4483 }
4484
4485 if (incoming) {
4486 Error *local_err = NULL;
4487 qemu_start_incoming_migration(incoming, &local_err);
4488 if (local_err) {
4489 error_reportf_err(local_err, "-incoming %s: ", incoming);
4490 exit(1);
4491 }
4492 } else if (autostart) {
4493 vm_start();
4494 }
4495
4496 accel_setup_post(current_machine);
4497 os_setup_post();
4498
4499 return;
4500 }
4501
4502 void qemu_cleanup(void)
4503 {
4504 gdbserver_cleanup();
4505
4506 /*
4507 * cleaning up the migration object cancels any existing migration
4508 * try to do this early so that it also stops using devices.
4509 */
4510 migration_shutdown();
4511
4512 /*
4513 * We must cancel all block jobs while the block layer is drained,
4514 * or cancelling will be affected by throttling and thus may block
4515 * for an extended period of time.
4516 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4517 * it in the drained section.
4518 * We do not need to end this section, because we do not want any
4519 * requests happening from here on anyway.
4520 */
4521 bdrv_drain_all_begin();
4522
4523 /* No more vcpu or device emulation activity beyond this point */
4524 vm_shutdown();
4525 replay_finish();
4526
4527 job_cancel_sync_all();
4528 bdrv_close_all();
4529
4530 res_free();
4531
4532 /* vhost-user must be cleaned up before chardevs. */
4533 tpm_cleanup();
4534 net_cleanup();
4535 audio_cleanup();
4536 monitor_cleanup();
4537 qemu_chr_cleanup();
4538 user_creatable_cleanup();
4539 /* TODO: unref root container, check all devices are ok */
4540 }
AR7 emulation for QEMU