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WHPX: support for the kernel-irqchip on/off
[qemu/ar7.git] / softmmu / vl.c
blobbbe65d37426be6067a8044907555608d0ebda55a
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/boards.h"
29 #include "hw/qdev-properties.h"
30 #include "qapi/error.h"
31 #include "qemu-version.h"
32 #include "qemu/cutils.h"
33 #include "qemu/help_option.h"
34 #include "qemu/uuid.h"
35 #include "sysemu/reset.h"
36 #include "sysemu/runstate.h"
37 #include "sysemu/seccomp.h"
38 #include "sysemu/tcg.h"
39 #include "sysemu/xen.h"
40
41 #include "qemu/error-report.h"
42 #include "qemu/sockets.h"
43 #include "sysemu/accel.h"
44 #include "hw/usb.h"
45 #include "hw/isa/isa.h"
46 #include "hw/scsi/scsi.h"
47 #include "hw/display/vga.h"
48 #include "sysemu/watchdog.h"
49 #include "hw/firmware/smbios.h"
50 #include "hw/acpi/acpi.h"
51 #include "hw/xen/xen.h"
52 #include "hw/loader.h"
53 #include "monitor/qdev.h"
54 #include "net/net.h"
55 #include "net/slirp.h"
56 #include "monitor/monitor.h"
57 #include "ui/console.h"
58 #include "ui/input.h"
59 #include "sysemu/sysemu.h"
60 #include "sysemu/numa.h"
61 #include "sysemu/hostmem.h"
62 #include "exec/gdbstub.h"
63 #include "qemu/timer.h"
64 #include "chardev/char.h"
65 #include "qemu/bitmap.h"
66 #include "qemu/log.h"
67 #include "sysemu/blockdev.h"
68 #include "hw/block/block.h"
69 #include "migration/misc.h"
70 #include "migration/snapshot.h"
71 #include "migration/global_state.h"
72 #include "sysemu/tpm.h"
73 #include "sysemu/dma.h"
74 #include "hw/audio/soundhw.h"
75 #include "audio/audio.h"
76 #include "sysemu/cpus.h"
77 #include "sysemu/cpu-timers.h"
78 #include "migration/colo.h"
79 #include "migration/postcopy-ram.h"
80 #include "sysemu/kvm.h"
81 #include "sysemu/hax.h"
82 #include "qapi/qobject-input-visitor.h"
83 #include "qemu/option.h"
84 #include "qemu/config-file.h"
85 #include "qemu-options.h"
86 #include "qemu/main-loop.h"
87 #ifdef CONFIG_VIRTFS
88 #include "fsdev/qemu-fsdev.h"
89 #endif
90 #include "sysemu/qtest.h"
91
92 #include "disas/disas.h"
93
94 #include "trace.h"
95 #include "trace/control.h"
96 #include "qemu/plugin.h"
97 #include "qemu/queue.h"
98 #include "sysemu/arch_init.h"
99
100 #include "ui/qemu-spice.h"
101 #include "qapi/string-input-visitor.h"
102 #include "qapi/opts-visitor.h"
103 #include "qapi/clone-visitor.h"
104 #include "qom/object_interfaces.h"
105 #include "hw/semihosting/semihost.h"
106 #include "crypto/init.h"
107 #include "sysemu/replay.h"
108 #include "qapi/qapi-events-run-state.h"
109 #include "qapi/qapi-visit-block-core.h"
110 #include "qapi/qapi-visit-ui.h"
111 #include "qapi/qapi-commands-block-core.h"
112 #include "qapi/qapi-commands-run-state.h"
113 #include "qapi/qapi-commands-ui.h"
114 #include "qapi/qmp/qerror.h"
115 #include "sysemu/iothread.h"
116 #include "qemu/guest-random.h"
117
118 #define MAX_VIRTIO_CONSOLES 1
119
120 static const char *data_dir[16];
121 static int data_dir_idx;
122 const char *bios_name = NULL;
123 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
124 int display_opengl;
125 const char* keyboard_layout = NULL;
126 ram_addr_t ram_size;
127 bool enable_mlock = false;
128 bool enable_cpu_pm = false;
129 int nb_nics;
130 NICInfo nd_table[MAX_NICS];
131 int autostart;
132 static enum {
133 RTC_BASE_UTC,
134 RTC_BASE_LOCALTIME,
135 RTC_BASE_DATETIME,
136 } rtc_base_type = RTC_BASE_UTC;
137 static time_t rtc_ref_start_datetime;
138 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
139 static int rtc_host_datetime_offset = -1; /* valid & used only with
140 RTC_BASE_DATETIME */
141 QEMUClockType rtc_clock;
142 int vga_interface_type = VGA_NONE;
143 static DisplayOptions dpy;
144 static int num_serial_hds;
145 static Chardev **serial_hds;
146 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
147 int win2k_install_hack = 0;
148 int singlestep = 0;
149 int 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 int icount_align_option;
168 static const char *qtest_chrdev;
169 static const char *qtest_log;
170
171 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
172 * little-endian "wire format" described in the SMBIOS 2.6 specification.
173 */
174 QemuUUID qemu_uuid;
175 bool qemu_uuid_set;
176
177 static NotifierList exit_notifiers =
178 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
179
180 static NotifierList machine_init_done_notifiers =
181 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
182
183 uint32_t xen_domid;
184 enum xen_mode xen_mode = XEN_EMULATE;
185 bool xen_domid_restrict;
186
187 static int has_defaults = 1;
188 static int default_serial = 1;
189 static int default_parallel = 1;
190 static int default_monitor = 1;
191 static int default_floppy = 1;
192 static int default_cdrom = 1;
193 static int default_sdcard = 1;
194 static int default_vga = 1;
195 static int default_net = 1;
196
197 static struct {
198 const char *driver;
199 int *flag;
200 } default_list[] = {
201 { .driver = "isa-serial", .flag = &default_serial },
202 { .driver = "isa-parallel", .flag = &default_parallel },
203 { .driver = "isa-fdc", .flag = &default_floppy },
204 { .driver = "floppy", .flag = &default_floppy },
205 { .driver = "ide-cd", .flag = &default_cdrom },
206 { .driver = "ide-hd", .flag = &default_cdrom },
207 { .driver = "ide-drive", .flag = &default_cdrom },
208 { .driver = "scsi-cd", .flag = &default_cdrom },
209 { .driver = "scsi-hd", .flag = &default_cdrom },
210 { .driver = "VGA", .flag = &default_vga },
211 { .driver = "isa-vga", .flag = &default_vga },
212 { .driver = "cirrus-vga", .flag = &default_vga },
213 { .driver = "isa-cirrus-vga", .flag = &default_vga },
214 { .driver = "vmware-svga", .flag = &default_vga },
215 { .driver = "qxl-vga", .flag = &default_vga },
216 { .driver = "virtio-vga", .flag = &default_vga },
217 { .driver = "ati-vga", .flag = &default_vga },
218 { .driver = "vhost-user-vga", .flag = &default_vga },
219 };
220
221 static QemuOptsList qemu_rtc_opts = {
222 .name = "rtc",
223 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
224 .merge_lists = true,
225 .desc = {
226 {
227 .name = "base",
228 .type = QEMU_OPT_STRING,
229 },{
230 .name = "clock",
231 .type = QEMU_OPT_STRING,
232 },{
233 .name = "driftfix",
234 .type = QEMU_OPT_STRING,
235 },
236 { /* end of list */ }
237 },
238 };
239
240 static QemuOptsList qemu_option_rom_opts = {
241 .name = "option-rom",
242 .implied_opt_name = "romfile",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
244 .desc = {
245 {
246 .name = "bootindex",
247 .type = QEMU_OPT_NUMBER,
248 }, {
249 .name = "romfile",
250 .type = QEMU_OPT_STRING,
251 },
252 { /* end of list */ }
253 },
254 };
255
256 static QemuOptsList qemu_machine_opts = {
257 .name = "machine",
258 .implied_opt_name = "type",
259 .merge_lists = true,
260 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
261 .desc = {
262 /*
263 * no elements => accept any
264 * sanity checking will happen later
265 * when setting machine properties
266 */
267 { }
268 },
269 };
270
271 static QemuOptsList qemu_accel_opts = {
272 .name = "accel",
273 .implied_opt_name = "accel",
274 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
275 .desc = {
276 /*
277 * no elements => accept any
278 * sanity checking will happen later
279 * when setting accelerator properties
280 */
281 { }
282 },
283 };
284
285 static QemuOptsList qemu_boot_opts = {
286 .name = "boot-opts",
287 .implied_opt_name = "order",
288 .merge_lists = true,
289 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
290 .desc = {
291 {
292 .name = "order",
293 .type = QEMU_OPT_STRING,
294 }, {
295 .name = "once",
296 .type = QEMU_OPT_STRING,
297 }, {
298 .name = "menu",
299 .type = QEMU_OPT_BOOL,
300 }, {
301 .name = "splash",
302 .type = QEMU_OPT_STRING,
303 }, {
304 .name = "splash-time",
305 .type = QEMU_OPT_NUMBER,
306 }, {
307 .name = "reboot-timeout",
308 .type = QEMU_OPT_NUMBER,
309 }, {
310 .name = "strict",
311 .type = QEMU_OPT_BOOL,
312 },
313 { /*End of list */ }
314 },
315 };
316
317 static QemuOptsList qemu_add_fd_opts = {
318 .name = "add-fd",
319 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
320 .desc = {
321 {
322 .name = "fd",
323 .type = QEMU_OPT_NUMBER,
324 .help = "file descriptor of which a duplicate is added to fd set",
325 },{
326 .name = "set",
327 .type = QEMU_OPT_NUMBER,
328 .help = "ID of the fd set to add fd to",
329 },{
330 .name = "opaque",
331 .type = QEMU_OPT_STRING,
332 .help = "free-form string used to describe fd",
333 },
334 { /* end of list */ }
335 },
336 };
337
338 static QemuOptsList qemu_object_opts = {
339 .name = "object",
340 .implied_opt_name = "qom-type",
341 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
342 .desc = {
343 { }
344 },
345 };
346
347 static QemuOptsList qemu_tpmdev_opts = {
348 .name = "tpmdev",
349 .implied_opt_name = "type",
350 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
351 .desc = {
352 /* options are defined in the TPM backends */
353 { /* end of list */ }
354 },
355 };
356
357 static QemuOptsList qemu_realtime_opts = {
358 .name = "realtime",
359 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
360 .desc = {
361 {
362 .name = "mlock",
363 .type = QEMU_OPT_BOOL,
364 },
365 { /* end of list */ }
366 },
367 };
368
369 static QemuOptsList qemu_overcommit_opts = {
370 .name = "overcommit",
371 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
372 .desc = {
373 {
374 .name = "mem-lock",
375 .type = QEMU_OPT_BOOL,
376 },
377 {
378 .name = "cpu-pm",
379 .type = QEMU_OPT_BOOL,
380 },
381 { /* end of list */ }
382 },
383 };
384
385 static QemuOptsList qemu_msg_opts = {
386 .name = "msg",
387 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
388 .desc = {
389 {
390 .name = "timestamp",
391 .type = QEMU_OPT_BOOL,
392 },
393 {
394 .name = "guest-name",
395 .type = QEMU_OPT_BOOL,
396 .help = "Prepends guest name for error messages but only if "
397 "-name guest is set otherwise option is ignored\n",
398 },
399 { /* end of list */ }
400 },
401 };
402
403 static QemuOptsList qemu_name_opts = {
404 .name = "name",
405 .implied_opt_name = "guest",
406 .merge_lists = true,
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
408 .desc = {
409 {
410 .name = "guest",
411 .type = QEMU_OPT_STRING,
412 .help = "Sets the name of the guest.\n"
413 "This name will be displayed in the SDL window caption.\n"
414 "The name will also be used for the VNC server",
415 }, {
416 .name = "process",
417 .type = QEMU_OPT_STRING,
418 .help = "Sets the name of the QEMU process, as shown in top etc",
419 }, {
420 .name = "debug-threads",
421 .type = QEMU_OPT_BOOL,
422 .help = "When enabled, name the individual threads; defaults off.\n"
423 "NOTE: The thread names are for debugging and not a\n"
424 "stable API.",
425 },
426 { /* End of list */ }
427 },
428 };
429
430 static QemuOptsList qemu_mem_opts = {
431 .name = "memory",
432 .implied_opt_name = "size",
433 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
434 .merge_lists = true,
435 .desc = {
436 {
437 .name = "size",
438 .type = QEMU_OPT_SIZE,
439 },
440 {
441 .name = "slots",
442 .type = QEMU_OPT_NUMBER,
443 },
444 {
445 .name = "maxmem",
446 .type = QEMU_OPT_SIZE,
447 },
448 { /* end of list */ }
449 },
450 };
451
452 static QemuOptsList qemu_icount_opts = {
453 .name = "icount",
454 .implied_opt_name = "shift",
455 .merge_lists = true,
456 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
457 .desc = {
458 {
459 .name = "shift",
460 .type = QEMU_OPT_STRING,
461 }, {
462 .name = "align",
463 .type = QEMU_OPT_BOOL,
464 }, {
465 .name = "sleep",
466 .type = QEMU_OPT_BOOL,
467 }, {
468 .name = "rr",
469 .type = QEMU_OPT_STRING,
470 }, {
471 .name = "rrfile",
472 .type = QEMU_OPT_STRING,
473 }, {
474 .name = "rrsnapshot",
475 .type = QEMU_OPT_STRING,
476 },
477 { /* end of list */ }
478 },
479 };
480
481 static QemuOptsList qemu_fw_cfg_opts = {
482 .name = "fw_cfg",
483 .implied_opt_name = "name",
484 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
485 .desc = {
486 {
487 .name = "name",
488 .type = QEMU_OPT_STRING,
489 .help = "Sets the fw_cfg name of the blob to be inserted",
490 }, {
491 .name = "file",
492 .type = QEMU_OPT_STRING,
493 .help = "Sets the name of the file from which "
494 "the fw_cfg blob will be loaded",
495 }, {
496 .name = "string",
497 .type = QEMU_OPT_STRING,
498 .help = "Sets content of the blob to be inserted from a string",
499 }, {
500 .name = "gen_id",
501 .type = QEMU_OPT_STRING,
502 .help = "Sets id of the object generating the fw_cfg blob "
503 "to be inserted",
504 },
505 { /* end of list */ }
506 },
507 };
508
509 /**
510 * Get machine options
511 *
512 * Returns: machine options (never null).
513 */
514 QemuOpts *qemu_get_machine_opts(void)
515 {
516 return qemu_find_opts_singleton("machine");
517 }
518
519 const char *qemu_get_vm_name(void)
520 {
521 return qemu_name;
522 }
523
524 static void res_free(void)
525 {
526 g_free(boot_splash_filedata);
527 boot_splash_filedata = NULL;
528 }
529
530 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
531 {
532 const char *driver = qemu_opt_get(opts, "driver");
533 int i;
534
535 if (!driver)
536 return 0;
537 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
538 if (strcmp(default_list[i].driver, driver) != 0)
539 continue;
540 *(default_list[i].flag) = 0;
541 }
542 return 0;
543 }
544
545 /***********************************************************/
546 /* QEMU state */
547
548 static RunState current_run_state = RUN_STATE_PRECONFIG;
549
550 /* We use RUN_STATE__MAX but any invalid value will do */
551 static RunState vmstop_requested = RUN_STATE__MAX;
552 static QemuMutex vmstop_lock;
553
554 typedef struct {
555 RunState from;
556 RunState to;
557 } RunStateTransition;
558
559 static const RunStateTransition runstate_transitions_def[] = {
560 /* from -> to */
561 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
562 /* Early switch to inmigrate state to allow -incoming CLI option work
563 * as it used to. TODO: delay actual switching to inmigrate state to
564 * the point after machine is built and remove this hack.
565 */
566 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
567
568 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
569 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
570 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
571
572 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
573 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
574 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
575 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
576 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
577 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
578 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
579 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
580 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
581 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
582 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
583 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
584
585 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
586 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
587 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
588
589 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
590 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
591 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
592
593 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
594 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
595 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
596 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
597 { RUN_STATE_PAUSED, RUN_STATE_COLO},
598
599 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
600 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
601 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
602
603 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
604 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
605 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
606
607 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
608 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
609 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
610 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
611 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
612
613 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
614 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
615
616 { RUN_STATE_COLO, RUN_STATE_RUNNING },
617
618 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
619 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
620 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
621 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
622 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
624 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
625 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
626 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
627 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
628 { RUN_STATE_RUNNING, RUN_STATE_COLO},
629
630 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
631
632 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
633 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
635 { RUN_STATE_SHUTDOWN, RUN_STATE_COLO },
636
637 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
638 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
639 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
640 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
641 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
642 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
643
644 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
645 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
646 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
647 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
648
649 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
650 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
651 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
652
653 { RUN_STATE__MAX, RUN_STATE__MAX },
654 };
655
656 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
657
658 bool runstate_check(RunState state)
659 {
660 return current_run_state == state;
661 }
662
663 bool runstate_store(char *str, size_t size)
664 {
665 const char *state = RunState_str(current_run_state);
666 size_t len = strlen(state) + 1;
667
668 if (len > size) {
669 return false;
670 }
671 memcpy(str, state, len);
672 return true;
673 }
674
675 static void runstate_init(void)
676 {
677 const RunStateTransition *p;
678
679 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
680 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
681 runstate_valid_transitions[p->from][p->to] = true;
682 }
683
684 qemu_mutex_init(&vmstop_lock);
685 }
686
687 /* This function will abort() on invalid state transitions */
688 void runstate_set(RunState new_state)
689 {
690 assert(new_state < RUN_STATE__MAX);
691
692 trace_runstate_set(current_run_state, RunState_str(current_run_state),
693 new_state, RunState_str(new_state));
694
695 if (current_run_state == new_state) {
696 return;
697 }
698
699 if (!runstate_valid_transitions[current_run_state][new_state]) {
700 error_report("invalid runstate transition: '%s' -> '%s'",
701 RunState_str(current_run_state),
702 RunState_str(new_state));
703 abort();
704 }
705
706 current_run_state = new_state;
707 }
708
709 int runstate_is_running(void)
710 {
711 return runstate_check(RUN_STATE_RUNNING);
712 }
713
714 bool runstate_needs_reset(void)
715 {
716 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
717 runstate_check(RUN_STATE_SHUTDOWN);
718 }
719
720 StatusInfo *qmp_query_status(Error **errp)
721 {
722 StatusInfo *info = g_malloc0(sizeof(*info));
723
724 info->running = runstate_is_running();
725 info->singlestep = singlestep;
726 info->status = current_run_state;
727
728 return info;
729 }
730
731 bool qemu_vmstop_requested(RunState *r)
732 {
733 qemu_mutex_lock(&vmstop_lock);
734 *r = vmstop_requested;
735 vmstop_requested = RUN_STATE__MAX;
736 qemu_mutex_unlock(&vmstop_lock);
737 return *r < RUN_STATE__MAX;
738 }
739
740 void qemu_system_vmstop_request_prepare(void)
741 {
742 qemu_mutex_lock(&vmstop_lock);
743 }
744
745 void qemu_system_vmstop_request(RunState state)
746 {
747 vmstop_requested = state;
748 qemu_mutex_unlock(&vmstop_lock);
749 qemu_notify_event();
750 }
751
752 /***********************************************************/
753 /* RTC reference time/date access */
754 static time_t qemu_ref_timedate(QEMUClockType clock)
755 {
756 time_t value = qemu_clock_get_ms(clock) / 1000;
757 switch (clock) {
758 case QEMU_CLOCK_REALTIME:
759 value -= rtc_realtime_clock_offset;
760 /* fall through */
761 case QEMU_CLOCK_VIRTUAL:
762 value += rtc_ref_start_datetime;
763 break;
764 case QEMU_CLOCK_HOST:
765 if (rtc_base_type == RTC_BASE_DATETIME) {
766 value -= rtc_host_datetime_offset;
767 }
768 break;
769 default:
770 assert(0);
771 }
772 return value;
773 }
774
775 void qemu_get_timedate(struct tm *tm, int offset)
776 {
777 time_t ti = qemu_ref_timedate(rtc_clock);
778
779 ti += offset;
780
781 switch (rtc_base_type) {
782 case RTC_BASE_DATETIME:
783 case RTC_BASE_UTC:
784 gmtime_r(&ti, tm);
785 break;
786 case RTC_BASE_LOCALTIME:
787 localtime_r(&ti, tm);
788 break;
789 }
790 }
791
792 int qemu_timedate_diff(struct tm *tm)
793 {
794 time_t seconds;
795
796 switch (rtc_base_type) {
797 case RTC_BASE_DATETIME:
798 case RTC_BASE_UTC:
799 seconds = mktimegm(tm);
800 break;
801 case RTC_BASE_LOCALTIME:
802 {
803 struct tm tmp = *tm;
804 tmp.tm_isdst = -1; /* use timezone to figure it out */
805 seconds = mktime(&tmp);
806 break;
807 }
808 default:
809 abort();
810 }
811
812 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
813 }
814
815 static void configure_rtc_base_datetime(const char *startdate)
816 {
817 time_t rtc_start_datetime;
818 struct tm tm;
819
820 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
821 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
822 /* OK */
823 } else if (sscanf(startdate, "%d-%d-%d",
824 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
825 tm.tm_hour = 0;
826 tm.tm_min = 0;
827 tm.tm_sec = 0;
828 } else {
829 goto date_fail;
830 }
831 tm.tm_year -= 1900;
832 tm.tm_mon--;
833 rtc_start_datetime = mktimegm(&tm);
834 if (rtc_start_datetime == -1) {
835 date_fail:
836 error_report("invalid datetime format");
837 error_printf("valid formats: "
838 "'2006-06-17T16:01:21' or '2006-06-17'\n");
839 exit(1);
840 }
841 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
842 rtc_ref_start_datetime = rtc_start_datetime;
843 }
844
845 static void configure_rtc(QemuOpts *opts)
846 {
847 const char *value;
848
849 /* Set defaults */
850 rtc_clock = QEMU_CLOCK_HOST;
851 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
852 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
853
854 value = qemu_opt_get(opts, "base");
855 if (value) {
856 if (!strcmp(value, "utc")) {
857 rtc_base_type = RTC_BASE_UTC;
858 } else if (!strcmp(value, "localtime")) {
859 Error *blocker = NULL;
860 rtc_base_type = RTC_BASE_LOCALTIME;
861 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
862 "-rtc base=localtime");
863 replay_add_blocker(blocker);
864 } else {
865 rtc_base_type = RTC_BASE_DATETIME;
866 configure_rtc_base_datetime(value);
867 }
868 }
869 value = qemu_opt_get(opts, "clock");
870 if (value) {
871 if (!strcmp(value, "host")) {
872 rtc_clock = QEMU_CLOCK_HOST;
873 } else if (!strcmp(value, "rt")) {
874 rtc_clock = QEMU_CLOCK_REALTIME;
875 } else if (!strcmp(value, "vm")) {
876 rtc_clock = QEMU_CLOCK_VIRTUAL;
877 } else {
878 error_report("invalid option value '%s'", value);
879 exit(1);
880 }
881 }
882 value = qemu_opt_get(opts, "driftfix");
883 if (value) {
884 if (!strcmp(value, "slew")) {
885 object_register_sugar_prop("mc146818rtc",
886 "lost_tick_policy",
887 "slew");
888 } else if (!strcmp(value, "none")) {
889 /* discard is default */
890 } else {
891 error_report("invalid option value '%s'", value);
892 exit(1);
893 }
894 }
895 }
896
897 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
898 {
899 const char *proc_name;
900
901 if (qemu_opt_get(opts, "debug-threads")) {
902 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
903 }
904 qemu_name = qemu_opt_get(opts, "guest");
905
906 proc_name = qemu_opt_get(opts, "process");
907 if (proc_name) {
908 os_set_proc_name(proc_name);
909 }
910
911 return 0;
912 }
913
914 bool defaults_enabled(void)
915 {
916 return has_defaults;
917 }
918
919 #ifndef _WIN32
920 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
921 {
922 int fd, dupfd, flags;
923 int64_t fdset_id;
924 const char *fd_opaque = NULL;
925 AddfdInfo *fdinfo;
926
927 fd = qemu_opt_get_number(opts, "fd", -1);
928 fdset_id = qemu_opt_get_number(opts, "set", -1);
929 fd_opaque = qemu_opt_get(opts, "opaque");
930
931 if (fd < 0) {
932 error_setg(errp, "fd option is required and must be non-negative");
933 return -1;
934 }
935
936 if (fd <= STDERR_FILENO) {
937 error_setg(errp, "fd cannot be a standard I/O stream");
938 return -1;
939 }
940
941 /*
942 * All fds inherited across exec() necessarily have FD_CLOEXEC
943 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
944 */
945 flags = fcntl(fd, F_GETFD);
946 if (flags == -1 || (flags & FD_CLOEXEC)) {
947 error_setg(errp, "fd is not valid or already in use");
948 return -1;
949 }
950
951 if (fdset_id < 0) {
952 error_setg(errp, "set option is required and must be non-negative");
953 return -1;
954 }
955
956 #ifdef F_DUPFD_CLOEXEC
957 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
958 #else
959 dupfd = dup(fd);
960 if (dupfd != -1) {
961 qemu_set_cloexec(dupfd);
962 }
963 #endif
964 if (dupfd == -1) {
965 error_setg(errp, "error duplicating fd: %s", strerror(errno));
966 return -1;
967 }
968
969 /* add the duplicate fd, and optionally the opaque string, to the fd set */
970 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
971 &error_abort);
972 g_free(fdinfo);
973
974 return 0;
975 }
976
977 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
978 {
979 int fd;
980
981 fd = qemu_opt_get_number(opts, "fd", -1);
982 close(fd);
983
984 return 0;
985 }
986 #endif
987
988 /***********************************************************/
989 /* QEMU Block devices */
990
991 #define HD_OPTS "media=disk"
992 #define CDROM_OPTS "media=cdrom"
993 #define FD_OPTS ""
994 #define PFLASH_OPTS ""
995 #define MTD_OPTS ""
996 #define SD_OPTS ""
997
998 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
999 {
1000 BlockInterfaceType *block_default_type = opaque;
1001
1002 return drive_new(opts, *block_default_type, errp) == NULL;
1003 }
1004
1005 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1006 {
1007 if (qemu_opt_get(opts, "snapshot") == NULL) {
1008 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1009 }
1010 return 0;
1011 }
1012
1013 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1014 int index, const char *optstr)
1015 {
1016 QemuOpts *opts;
1017 DriveInfo *dinfo;
1018
1019 if (!enable || drive_get_by_index(type, index)) {
1020 return;
1021 }
1022
1023 opts = drive_add(type, index, NULL, optstr);
1024 if (snapshot) {
1025 drive_enable_snapshot(NULL, opts, NULL);
1026 }
1027
1028 dinfo = drive_new(opts, type, &error_abort);
1029 dinfo->is_default = true;
1030
1031 }
1032
1033 typedef struct BlockdevOptionsQueueEntry {
1034 BlockdevOptions *bdo;
1035 Location loc;
1036 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1037 } BlockdevOptionsQueueEntry;
1038
1039 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1040
1041 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1042 MachineClass *machine_class, int snapshot)
1043 {
1044 /*
1045 * If the currently selected machine wishes to override the
1046 * units-per-bus property of its default HBA interface type, do so
1047 * now.
1048 */
1049 if (machine_class->units_per_default_bus) {
1050 override_max_devs(machine_class->block_default_type,
1051 machine_class->units_per_default_bus);
1052 }
1053
1054 /* open the virtual block devices */
1055 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1056 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1057
1058 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1059 loc_push_restore(&bdo->loc);
1060 qmp_blockdev_add(bdo->bdo, &error_fatal);
1061 loc_pop(&bdo->loc);
1062 qapi_free_BlockdevOptions(bdo->bdo);
1063 g_free(bdo);
1064 }
1065 if (snapshot) {
1066 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1067 NULL, NULL);
1068 }
1069 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1070 &machine_class->block_default_type, &error_fatal)) {
1071 /* We printed help */
1072 exit(0);
1073 }
1074
1075 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1076 CDROM_OPTS);
1077 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1078 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1079
1080 }
1081
1082 static QemuOptsList qemu_smp_opts = {
1083 .name = "smp-opts",
1084 .implied_opt_name = "cpus",
1085 .merge_lists = true,
1086 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1087 .desc = {
1088 {
1089 .name = "cpus",
1090 .type = QEMU_OPT_NUMBER,
1091 }, {
1092 .name = "sockets",
1093 .type = QEMU_OPT_NUMBER,
1094 }, {
1095 .name = "dies",
1096 .type = QEMU_OPT_NUMBER,
1097 }, {
1098 .name = "cores",
1099 .type = QEMU_OPT_NUMBER,
1100 }, {
1101 .name = "threads",
1102 .type = QEMU_OPT_NUMBER,
1103 }, {
1104 .name = "maxcpus",
1105 .type = QEMU_OPT_NUMBER,
1106 },
1107 { /*End of list */ }
1108 },
1109 };
1110
1111 static void realtime_init(void)
1112 {
1113 if (enable_mlock) {
1114 if (os_mlock() < 0) {
1115 error_report("locking memory failed");
1116 exit(1);
1117 }
1118 }
1119 }
1120
1121
1122 static void configure_msg(QemuOpts *opts)
1123 {
1124 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1125 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
1126 }
1127
1128
1129 /***********************************************************/
1130 /* USB devices */
1131
1132 static int usb_device_add(const char *devname)
1133 {
1134 USBDevice *dev = NULL;
1135
1136 if (!machine_usb(current_machine)) {
1137 return -1;
1138 }
1139
1140 dev = usbdevice_create(devname);
1141 if (!dev)
1142 return -1;
1143
1144 return 0;
1145 }
1146
1147 static int usb_parse(const char *cmdline)
1148 {
1149 int r;
1150 r = usb_device_add(cmdline);
1151 if (r < 0) {
1152 error_report("could not add USB device '%s'", cmdline);
1153 }
1154 return r;
1155 }
1156
1157 /***********************************************************/
1158 /* machine registration */
1159
1160 MachineState *current_machine;
1161
1162 static MachineClass *find_machine(const char *name, GSList *machines)
1163 {
1164 GSList *el;
1165
1166 for (el = machines; el; el = el->next) {
1167 MachineClass *mc = el->data;
1168
1169 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1170 return mc;
1171 }
1172 }
1173
1174 return NULL;
1175 }
1176
1177 static MachineClass *find_default_machine(GSList *machines)
1178 {
1179 GSList *el;
1180 MachineClass *default_machineclass = NULL;
1181
1182 for (el = machines; el; el = el->next) {
1183 MachineClass *mc = el->data;
1184
1185 if (mc->is_default) {
1186 assert(default_machineclass == NULL && "Multiple default machines");
1187 default_machineclass = mc;
1188 }
1189 }
1190
1191 return default_machineclass;
1192 }
1193
1194 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1195 {
1196 ObjectProperty *prop;
1197 ObjectPropertyIterator iter;
1198
1199 if (!qemu_opt_has_help_opt(opts)) {
1200 return 0;
1201 }
1202
1203 object_property_iter_init(&iter, OBJECT(machine));
1204 while ((prop = object_property_iter_next(&iter))) {
1205 if (!prop->set) {
1206 continue;
1207 }
1208
1209 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1210 prop->name, prop->type);
1211 if (prop->description) {
1212 printf(" (%s)\n", prop->description);
1213 } else {
1214 printf("\n");
1215 }
1216 }
1217
1218 return 1;
1219 }
1220
1221 struct VMChangeStateEntry {
1222 VMChangeStateHandler *cb;
1223 void *opaque;
1224 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1225 int priority;
1226 };
1227
1228 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1229
1230 /**
1231 * qemu_add_vm_change_state_handler_prio:
1232 * @cb: the callback to invoke
1233 * @opaque: user data passed to the callback
1234 * @priority: low priorities execute first when the vm runs and the reverse is
1235 * true when the vm stops
1236 *
1237 * Register a callback function that is invoked when the vm starts or stops
1238 * running.
1239 *
1240 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1241 */
1242 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1243 VMChangeStateHandler *cb, void *opaque, int priority)
1244 {
1245 VMChangeStateEntry *e;
1246 VMChangeStateEntry *other;
1247
1248 e = g_malloc0(sizeof(*e));
1249 e->cb = cb;
1250 e->opaque = opaque;
1251 e->priority = priority;
1252
1253 /* Keep list sorted in ascending priority order */
1254 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1255 if (priority < other->priority) {
1256 QTAILQ_INSERT_BEFORE(other, e, entries);
1257 return e;
1258 }
1259 }
1260
1261 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1262 return e;
1263 }
1264
1265 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1266 void *opaque)
1267 {
1268 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1269 }
1270
1271 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1272 {
1273 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1274 g_free(e);
1275 }
1276
1277 void vm_state_notify(int running, RunState state)
1278 {
1279 VMChangeStateEntry *e, *next;
1280
1281 trace_vm_state_notify(running, state, RunState_str(state));
1282
1283 if (running) {
1284 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1285 e->cb(e->opaque, running, state);
1286 }
1287 } else {
1288 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1289 e->cb(e->opaque, running, state);
1290 }
1291 }
1292 }
1293
1294 static ShutdownCause reset_requested;
1295 static ShutdownCause shutdown_requested;
1296 static int shutdown_signal;
1297 static pid_t shutdown_pid;
1298 static int powerdown_requested;
1299 static int debug_requested;
1300 static int suspend_requested;
1301 static bool preconfig_exit_requested = true;
1302 static WakeupReason wakeup_reason;
1303 static NotifierList powerdown_notifiers =
1304 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1305 static NotifierList suspend_notifiers =
1306 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1307 static NotifierList wakeup_notifiers =
1308 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1309 static NotifierList shutdown_notifiers =
1310 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1311 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1312
1313 ShutdownCause qemu_shutdown_requested_get(void)
1314 {
1315 return shutdown_requested;
1316 }
1317
1318 ShutdownCause qemu_reset_requested_get(void)
1319 {
1320 return reset_requested;
1321 }
1322
1323 static int qemu_shutdown_requested(void)
1324 {
1325 return qatomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1326 }
1327
1328 static void qemu_kill_report(void)
1329 {
1330 if (!qtest_driver() && shutdown_signal) {
1331 if (shutdown_pid == 0) {
1332 /* This happens for eg ^C at the terminal, so it's worth
1333 * avoiding printing an odd message in that case.
1334 */
1335 error_report("terminating on signal %d", shutdown_signal);
1336 } else {
1337 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1338
1339 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1340 shutdown_signal, shutdown_pid,
1341 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1342 g_free(shutdown_cmd);
1343 }
1344 shutdown_signal = 0;
1345 }
1346 }
1347
1348 static ShutdownCause qemu_reset_requested(void)
1349 {
1350 ShutdownCause r = reset_requested;
1351
1352 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1353 reset_requested = SHUTDOWN_CAUSE_NONE;
1354 return r;
1355 }
1356 return SHUTDOWN_CAUSE_NONE;
1357 }
1358
1359 static int qemu_suspend_requested(void)
1360 {
1361 int r = suspend_requested;
1362 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1363 suspend_requested = 0;
1364 return r;
1365 }
1366 return false;
1367 }
1368
1369 static WakeupReason qemu_wakeup_requested(void)
1370 {
1371 return wakeup_reason;
1372 }
1373
1374 static int qemu_powerdown_requested(void)
1375 {
1376 int r = powerdown_requested;
1377 powerdown_requested = 0;
1378 return r;
1379 }
1380
1381 static int qemu_debug_requested(void)
1382 {
1383 int r = debug_requested;
1384 debug_requested = 0;
1385 return r;
1386 }
1387
1388 void qemu_exit_preconfig_request(void)
1389 {
1390 preconfig_exit_requested = true;
1391 }
1392
1393 /*
1394 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1395 */
1396 void qemu_system_reset(ShutdownCause reason)
1397 {
1398 MachineClass *mc;
1399
1400 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1401
1402 cpu_synchronize_all_states();
1403
1404 if (mc && mc->reset) {
1405 mc->reset(current_machine);
1406 } else {
1407 qemu_devices_reset();
1408 }
1409 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1410 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1411 }
1412 cpu_synchronize_all_post_reset();
1413 }
1414
1415 /*
1416 * Wake the VM after suspend.
1417 */
1418 static void qemu_system_wakeup(void)
1419 {
1420 MachineClass *mc;
1421
1422 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1423
1424 if (mc && mc->wakeup) {
1425 mc->wakeup(current_machine);
1426 }
1427 }
1428
1429 void qemu_system_guest_panicked(GuestPanicInformation *info)
1430 {
1431 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1432
1433 if (current_cpu) {
1434 current_cpu->crash_occurred = true;
1435 }
1436 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1437 !!info, info);
1438 vm_stop(RUN_STATE_GUEST_PANICKED);
1439 if (!no_shutdown) {
1440 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1441 !!info, info);
1442 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1443 }
1444
1445 if (info) {
1446 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1447 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1448 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1449 info->u.hyper_v.arg1,
1450 info->u.hyper_v.arg2,
1451 info->u.hyper_v.arg3,
1452 info->u.hyper_v.arg4,
1453 info->u.hyper_v.arg5);
1454 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1455 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1456 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1457 info->u.s390.core,
1458 S390CrashReason_str(info->u.s390.reason),
1459 info->u.s390.psw_mask,
1460 info->u.s390.psw_addr);
1461 }
1462 qapi_free_GuestPanicInformation(info);
1463 }
1464 }
1465
1466 void qemu_system_guest_crashloaded(GuestPanicInformation *info)
1467 {
1468 qemu_log_mask(LOG_GUEST_ERROR, "Guest crash loaded");
1469
1470 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN,
1471 !!info, info);
1472
1473 if (info) {
1474 qapi_free_GuestPanicInformation(info);
1475 }
1476 }
1477
1478 void qemu_system_reset_request(ShutdownCause reason)
1479 {
1480 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1481 shutdown_requested = reason;
1482 } else {
1483 reset_requested = reason;
1484 }
1485 cpu_stop_current();
1486 qemu_notify_event();
1487 }
1488
1489 static void qemu_system_suspend(void)
1490 {
1491 pause_all_vcpus();
1492 notifier_list_notify(&suspend_notifiers, NULL);
1493 runstate_set(RUN_STATE_SUSPENDED);
1494 qapi_event_send_suspend();
1495 }
1496
1497 void qemu_system_suspend_request(void)
1498 {
1499 if (runstate_check(RUN_STATE_SUSPENDED)) {
1500 return;
1501 }
1502 suspend_requested = 1;
1503 cpu_stop_current();
1504 qemu_notify_event();
1505 }
1506
1507 void qemu_register_suspend_notifier(Notifier *notifier)
1508 {
1509 notifier_list_add(&suspend_notifiers, notifier);
1510 }
1511
1512 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1513 {
1514 trace_system_wakeup_request(reason);
1515
1516 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1517 error_setg(errp,
1518 "Unable to wake up: guest is not in suspended state");
1519 return;
1520 }
1521 if (!(wakeup_reason_mask & (1 << reason))) {
1522 return;
1523 }
1524 runstate_set(RUN_STATE_RUNNING);
1525 wakeup_reason = reason;
1526 qemu_notify_event();
1527 }
1528
1529 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1530 {
1531 if (enabled) {
1532 wakeup_reason_mask |= (1 << reason);
1533 } else {
1534 wakeup_reason_mask &= ~(1 << reason);
1535 }
1536 }
1537
1538 void qemu_register_wakeup_notifier(Notifier *notifier)
1539 {
1540 notifier_list_add(&wakeup_notifiers, notifier);
1541 }
1542
1543 void qemu_register_wakeup_support(void)
1544 {
1545 wakeup_suspend_enabled = true;
1546 }
1547
1548 bool qemu_wakeup_suspend_enabled(void)
1549 {
1550 return wakeup_suspend_enabled;
1551 }
1552
1553 void qemu_system_killed(int signal, pid_t pid)
1554 {
1555 shutdown_signal = signal;
1556 shutdown_pid = pid;
1557 no_shutdown = 0;
1558
1559 /* Cannot call qemu_system_shutdown_request directly because
1560 * we are in a signal handler.
1561 */
1562 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1563 qemu_notify_event();
1564 }
1565
1566 void qemu_system_shutdown_request(ShutdownCause reason)
1567 {
1568 trace_qemu_system_shutdown_request(reason);
1569 replay_shutdown_request(reason);
1570 shutdown_requested = reason;
1571 qemu_notify_event();
1572 }
1573
1574 static void qemu_system_powerdown(void)
1575 {
1576 qapi_event_send_powerdown();
1577 notifier_list_notify(&powerdown_notifiers, NULL);
1578 }
1579
1580 static void qemu_system_shutdown(ShutdownCause cause)
1581 {
1582 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1583 notifier_list_notify(&shutdown_notifiers, &cause);
1584 }
1585
1586 void qemu_system_powerdown_request(void)
1587 {
1588 trace_qemu_system_powerdown_request();
1589 powerdown_requested = 1;
1590 qemu_notify_event();
1591 }
1592
1593 void qemu_register_powerdown_notifier(Notifier *notifier)
1594 {
1595 notifier_list_add(&powerdown_notifiers, notifier);
1596 }
1597
1598 void qemu_register_shutdown_notifier(Notifier *notifier)
1599 {
1600 notifier_list_add(&shutdown_notifiers, notifier);
1601 }
1602
1603 void qemu_system_debug_request(void)
1604 {
1605 debug_requested = 1;
1606 qemu_notify_event();
1607 }
1608
1609 static bool main_loop_should_exit(void)
1610 {
1611 RunState r;
1612 ShutdownCause request;
1613
1614 if (preconfig_exit_requested) {
1615 if (runstate_check(RUN_STATE_PRECONFIG)) {
1616 runstate_set(RUN_STATE_PRELAUNCH);
1617 }
1618 preconfig_exit_requested = false;
1619 return true;
1620 }
1621 if (qemu_debug_requested()) {
1622 vm_stop(RUN_STATE_DEBUG);
1623 }
1624 if (qemu_suspend_requested()) {
1625 qemu_system_suspend();
1626 }
1627 request = qemu_shutdown_requested();
1628 if (request) {
1629 qemu_kill_report();
1630 qemu_system_shutdown(request);
1631 if (no_shutdown) {
1632 vm_stop(RUN_STATE_SHUTDOWN);
1633 } else {
1634 return true;
1635 }
1636 }
1637 request = qemu_reset_requested();
1638 if (request) {
1639 pause_all_vcpus();
1640 qemu_system_reset(request);
1641 resume_all_vcpus();
1642 /*
1643 * runstate can change in pause_all_vcpus()
1644 * as iothread mutex is unlocked
1645 */
1646 if (!runstate_check(RUN_STATE_RUNNING) &&
1647 !runstate_check(RUN_STATE_INMIGRATE) &&
1648 !runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1649 runstate_set(RUN_STATE_PRELAUNCH);
1650 }
1651 }
1652 if (qemu_wakeup_requested()) {
1653 pause_all_vcpus();
1654 qemu_system_wakeup();
1655 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1656 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1657 resume_all_vcpus();
1658 qapi_event_send_wakeup();
1659 }
1660 if (qemu_powerdown_requested()) {
1661 qemu_system_powerdown();
1662 }
1663 if (qemu_vmstop_requested(&r)) {
1664 vm_stop(r);
1665 }
1666 return false;
1667 }
1668
1669 void qemu_main_loop(void)
1670 {
1671 #ifdef CONFIG_PROFILER
1672 int64_t ti;
1673 #endif
1674 while (!main_loop_should_exit()) {
1675 #ifdef CONFIG_PROFILER
1676 ti = profile_getclock();
1677 #endif
1678 main_loop_wait(false);
1679 #ifdef CONFIG_PROFILER
1680 dev_time += profile_getclock() - ti;
1681 #endif
1682 }
1683 }
1684
1685 static void version(void)
1686 {
1687 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1688 QEMU_COPYRIGHT "\n");
1689 }
1690
1691 static void help(int exitcode)
1692 {
1693 version();
1694 printf("usage: %s [options] [disk_image]\n\n"
1695 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1696 error_get_progname());
1697
1698 #define QEMU_OPTIONS_GENERATE_HELP
1699 #include "qemu-options-wrapper.h"
1700
1701 printf("\nDuring emulation, the following keys are useful:\n"
1702 "ctrl-alt-f toggle full screen\n"
1703 "ctrl-alt-n switch to virtual console 'n'\n"
1704 "ctrl-alt toggle mouse and keyboard grab\n"
1705 "\n"
1706 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1707 "\n"
1708 QEMU_HELP_BOTTOM "\n");
1709
1710 exit(exitcode);
1711 }
1712
1713 #define HAS_ARG 0x0001
1714
1715 typedef struct QEMUOption {
1716 const char *name;
1717 int flags;
1718 int index;
1719 uint32_t arch_mask;
1720 } QEMUOption;
1721
1722 static const QEMUOption qemu_options[] = {
1723 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1724 #define QEMU_OPTIONS_GENERATE_OPTIONS
1725 #include "qemu-options-wrapper.h"
1726 { NULL },
1727 };
1728
1729 typedef struct VGAInterfaceInfo {
1730 const char *opt_name; /* option name */
1731 const char *name; /* human-readable name */
1732 /* Class names indicating that support is available.
1733 * If no class is specified, the interface is always available */
1734 const char *class_names[2];
1735 } VGAInterfaceInfo;
1736
1737 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1738 [VGA_NONE] = {
1739 .opt_name = "none",
1740 .name = "no graphic card",
1741 },
1742 [VGA_STD] = {
1743 .opt_name = "std",
1744 .name = "standard VGA",
1745 .class_names = { "VGA", "isa-vga" },
1746 },
1747 [VGA_CIRRUS] = {
1748 .opt_name = "cirrus",
1749 .name = "Cirrus VGA",
1750 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1751 },
1752 [VGA_VMWARE] = {
1753 .opt_name = "vmware",
1754 .name = "VMWare SVGA",
1755 .class_names = { "vmware-svga" },
1756 },
1757 [VGA_VIRTIO] = {
1758 .opt_name = "virtio",
1759 .name = "Virtio VGA",
1760 .class_names = { "virtio-vga" },
1761 },
1762 [VGA_QXL] = {
1763 .opt_name = "qxl",
1764 .name = "QXL VGA",
1765 .class_names = { "qxl-vga" },
1766 },
1767 [VGA_TCX] = {
1768 .opt_name = "tcx",
1769 .name = "TCX framebuffer",
1770 .class_names = { "SUNW,tcx" },
1771 },
1772 [VGA_CG3] = {
1773 .opt_name = "cg3",
1774 .name = "CG3 framebuffer",
1775 .class_names = { "cgthree" },
1776 },
1777 [VGA_XENFB] = {
1778 .opt_name = "xenfb",
1779 .name = "Xen paravirtualized framebuffer",
1780 },
1781 };
1782
1783 static bool vga_interface_available(VGAInterfaceType t)
1784 {
1785 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1786
1787 assert(t < VGA_TYPE_MAX);
1788 return !ti->class_names[0] ||
1789 module_object_class_by_name(ti->class_names[0]) ||
1790 module_object_class_by_name(ti->class_names[1]);
1791 }
1792
1793 static const char *
1794 get_default_vga_model(const MachineClass *machine_class)
1795 {
1796 if (machine_class->default_display) {
1797 return machine_class->default_display;
1798 } else if (vga_interface_available(VGA_CIRRUS)) {
1799 return "cirrus";
1800 } else if (vga_interface_available(VGA_STD)) {
1801 return "std";
1802 }
1803
1804 return NULL;
1805 }
1806
1807 static void select_vgahw(const MachineClass *machine_class, const char *p)
1808 {
1809 const char *opts;
1810 int t;
1811
1812 if (g_str_equal(p, "help")) {
1813 const char *def = get_default_vga_model(machine_class);
1814
1815 for (t = 0; t < VGA_TYPE_MAX; t++) {
1816 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1817
1818 if (vga_interface_available(t) && ti->opt_name) {
1819 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1820 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1821 }
1822 }
1823 exit(0);
1824 }
1825
1826 assert(vga_interface_type == VGA_NONE);
1827 for (t = 0; t < VGA_TYPE_MAX; t++) {
1828 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1829 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1830 if (!vga_interface_available(t)) {
1831 error_report("%s not available", ti->name);
1832 exit(1);
1833 }
1834 vga_interface_type = t;
1835 break;
1836 }
1837 }
1838 if (t == VGA_TYPE_MAX) {
1839 invalid_vga:
1840 error_report("unknown vga type: %s", p);
1841 exit(1);
1842 }
1843 while (*opts) {
1844 const char *nextopt;
1845
1846 if (strstart(opts, ",retrace=", &nextopt)) {
1847 opts = nextopt;
1848 if (strstart(opts, "dumb", &nextopt))
1849 vga_retrace_method = VGA_RETRACE_DUMB;
1850 else if (strstart(opts, "precise", &nextopt))
1851 vga_retrace_method = VGA_RETRACE_PRECISE;
1852 else goto invalid_vga;
1853 } else goto invalid_vga;
1854 opts = nextopt;
1855 }
1856 }
1857
1858 static void parse_display_qapi(const char *optarg)
1859 {
1860 DisplayOptions *opts;
1861 Visitor *v;
1862
1863 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1864
1865 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1866 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1867
1868 qapi_free_DisplayOptions(opts);
1869 visit_free(v);
1870 }
1871
1872 DisplayOptions *qmp_query_display_options(Error **errp)
1873 {
1874 return QAPI_CLONE(DisplayOptions, &dpy);
1875 }
1876
1877 static void parse_display(const char *p)
1878 {
1879 const char *opts;
1880
1881 if (is_help_option(p)) {
1882 qemu_display_help();
1883 exit(0);
1884 }
1885
1886 if (strstart(p, "sdl", &opts)) {
1887 /*
1888 * sdl DisplayType needs hand-crafted parser instead of
1889 * parse_display_qapi() due to some options not in
1890 * DisplayOptions, specifically:
1891 * - frame
1892 * Already deprecated.
1893 * - ctrl_grab + alt_grab
1894 * Not clear yet what happens to them long-term. Should
1895 * replaced by something better or deprecated and dropped.
1896 */
1897 dpy.type = DISPLAY_TYPE_SDL;
1898 while (*opts) {
1899 const char *nextopt;
1900
1901 if (strstart(opts, ",alt_grab=", &nextopt)) {
1902 opts = nextopt;
1903 if (strstart(opts, "on", &nextopt)) {
1904 alt_grab = 1;
1905 } else if (strstart(opts, "off", &nextopt)) {
1906 alt_grab = 0;
1907 } else {
1908 goto invalid_sdl_args;
1909 }
1910 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1911 opts = nextopt;
1912 if (strstart(opts, "on", &nextopt)) {
1913 ctrl_grab = 1;
1914 } else if (strstart(opts, "off", &nextopt)) {
1915 ctrl_grab = 0;
1916 } else {
1917 goto invalid_sdl_args;
1918 }
1919 } else if (strstart(opts, ",window_close=", &nextopt)) {
1920 opts = nextopt;
1921 dpy.has_window_close = true;
1922 if (strstart(opts, "on", &nextopt)) {
1923 dpy.window_close = true;
1924 } else if (strstart(opts, "off", &nextopt)) {
1925 dpy.window_close = false;
1926 } else {
1927 goto invalid_sdl_args;
1928 }
1929 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1930 opts = nextopt;
1931 dpy.has_show_cursor = true;
1932 if (strstart(opts, "on", &nextopt)) {
1933 dpy.show_cursor = true;
1934 } else if (strstart(opts, "off", &nextopt)) {
1935 dpy.show_cursor = false;
1936 } else {
1937 goto invalid_sdl_args;
1938 }
1939 } else if (strstart(opts, ",gl=", &nextopt)) {
1940 opts = nextopt;
1941 dpy.has_gl = true;
1942 if (strstart(opts, "on", &nextopt)) {
1943 dpy.gl = DISPLAYGL_MODE_ON;
1944 } else if (strstart(opts, "core", &nextopt)) {
1945 dpy.gl = DISPLAYGL_MODE_CORE;
1946 } else if (strstart(opts, "es", &nextopt)) {
1947 dpy.gl = DISPLAYGL_MODE_ES;
1948 } else if (strstart(opts, "off", &nextopt)) {
1949 dpy.gl = DISPLAYGL_MODE_OFF;
1950 } else {
1951 goto invalid_sdl_args;
1952 }
1953 } else {
1954 invalid_sdl_args:
1955 error_report("invalid SDL option string");
1956 exit(1);
1957 }
1958 opts = nextopt;
1959 }
1960 } else if (strstart(p, "vnc", &opts)) {
1961 /*
1962 * vnc isn't a (local) DisplayType but a protocol for remote
1963 * display access.
1964 */
1965 if (*opts == '=') {
1966 vnc_parse(opts + 1, &error_fatal);
1967 } else {
1968 error_report("VNC requires a display argument vnc=<display>");
1969 exit(1);
1970 }
1971 } else {
1972 parse_display_qapi(p);
1973 }
1974 }
1975
1976 char *qemu_find_file(int type, const char *name)
1977 {
1978 int i;
1979 const char *subdir;
1980 char *buf;
1981
1982 /* Try the name as a straight path first */
1983 if (access(name, R_OK) == 0) {
1984 trace_load_file(name, name);
1985 return g_strdup(name);
1986 }
1987
1988 switch (type) {
1989 case QEMU_FILE_TYPE_BIOS:
1990 subdir = "";
1991 break;
1992 case QEMU_FILE_TYPE_KEYMAP:
1993 subdir = "keymaps/";
1994 break;
1995 default:
1996 abort();
1997 }
1998
1999 for (i = 0; i < data_dir_idx; i++) {
2000 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2001 if (access(buf, R_OK) == 0) {
2002 trace_load_file(name, buf);
2003 return buf;
2004 }
2005 g_free(buf);
2006 }
2007 return NULL;
2008 }
2009
2010 void qemu_add_data_dir(char *path)
2011 {
2012 int i;
2013
2014 if (path == NULL) {
2015 return;
2016 }
2017 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2018 return;
2019 }
2020 for (i = 0; i < data_dir_idx; i++) {
2021 if (strcmp(data_dir[i], path) == 0) {
2022 g_free(path); /* duplicate */
2023 return;
2024 }
2025 }
2026 data_dir[data_dir_idx++] = path;
2027 }
2028
2029 static inline bool nonempty_str(const char *str)
2030 {
2031 return str && *str;
2032 }
2033
2034 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2035 {
2036 gchar *buf;
2037 size_t size;
2038 const char *name, *file, *str, *gen_id;
2039 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2040
2041 if (fw_cfg == NULL) {
2042 error_setg(errp, "fw_cfg device not available");
2043 return -1;
2044 }
2045 name = qemu_opt_get(opts, "name");
2046 file = qemu_opt_get(opts, "file");
2047 str = qemu_opt_get(opts, "string");
2048 gen_id = qemu_opt_get(opts, "gen_id");
2049
2050 /* we need the name, and exactly one of: file, content string, gen_id */
2051 if (!nonempty_str(name) ||
2052 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
2053 error_setg(errp, "name, plus exactly one of file,"
2054 " string and gen_id, are needed");
2055 return -1;
2056 }
2057 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2058 error_setg(errp, "name too long (max. %d char)",
2059 FW_CFG_MAX_FILE_PATH - 1);
2060 return -1;
2061 }
2062 if (nonempty_str(gen_id)) {
2063 /*
2064 * In this particular case where the content is populated
2065 * internally, the "etc/" namespace protection is relaxed,
2066 * so do not emit a warning.
2067 */
2068 } else if (strncmp(name, "opt/", 4) != 0) {
2069 warn_report("externally provided fw_cfg item names "
2070 "should be prefixed with \"opt/\"");
2071 }
2072 if (nonempty_str(str)) {
2073 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2074 buf = g_memdup(str, size);
2075 } else if (nonempty_str(gen_id)) {
2076 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
2077 return -1;
2078 }
2079 return 0;
2080 } else {
2081 GError *err = NULL;
2082 if (!g_file_get_contents(file, &buf, &size, &err)) {
2083 error_setg(errp, "can't load %s: %s", file, err->message);
2084 g_error_free(err);
2085 return -1;
2086 }
2087 }
2088 /* For legacy, keep user files in a specific global order. */
2089 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2090 fw_cfg_add_file(fw_cfg, name, buf, size);
2091 fw_cfg_reset_order_override(fw_cfg);
2092 return 0;
2093 }
2094
2095 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2096 {
2097 return qdev_device_help(opts);
2098 }
2099
2100 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2101 {
2102 DeviceState *dev;
2103
2104 dev = qdev_device_add(opts, errp);
2105 if (!dev && *errp) {
2106 error_report_err(*errp);
2107 return -1;
2108 } else if (dev) {
2109 object_unref(OBJECT(dev));
2110 }
2111 return 0;
2112 }
2113
2114 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2115 {
2116 Error *local_err = NULL;
2117
2118 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2119 if (local_err) {
2120 error_propagate(errp, local_err);
2121 return -1;
2122 }
2123 exit(0);
2124 }
2125 return 0;
2126 }
2127
2128 #ifdef CONFIG_VIRTFS
2129 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2130 {
2131 return qemu_fsdev_add(opts, errp);
2132 }
2133 #endif
2134
2135 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2136 {
2137 return monitor_init_opts(opts, errp);
2138 }
2139
2140 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2141 {
2142 static int monitor_device_index = 0;
2143 QemuOpts *opts;
2144 const char *p;
2145 char label[32];
2146
2147 if (strstart(optarg, "chardev:", &p)) {
2148 snprintf(label, sizeof(label), "%s", p);
2149 } else {
2150 snprintf(label, sizeof(label), "compat_monitor%d",
2151 monitor_device_index);
2152 opts = qemu_chr_parse_compat(label, optarg, true);
2153 if (!opts) {
2154 error_report("parse error: %s", optarg);
2155 exit(1);
2156 }
2157 }
2158
2159 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2160 qemu_opt_set(opts, "mode", mode, &error_abort);
2161 qemu_opt_set(opts, "chardev", label, &error_abort);
2162 if (!strcmp(mode, "control")) {
2163 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2164 } else {
2165 assert(pretty == false);
2166 }
2167 monitor_device_index++;
2168 }
2169
2170 struct device_config {
2171 enum {
2172 DEV_USB, /* -usbdevice */
2173 DEV_SERIAL, /* -serial */
2174 DEV_PARALLEL, /* -parallel */
2175 DEV_DEBUGCON, /* -debugcon */
2176 DEV_GDB, /* -gdb, -s */
2177 DEV_SCLP, /* s390 sclp */
2178 } type;
2179 const char *cmdline;
2180 Location loc;
2181 QTAILQ_ENTRY(device_config) next;
2182 };
2183
2184 static QTAILQ_HEAD(, device_config) device_configs =
2185 QTAILQ_HEAD_INITIALIZER(device_configs);
2186
2187 static void add_device_config(int type, const char *cmdline)
2188 {
2189 struct device_config *conf;
2190
2191 conf = g_malloc0(sizeof(*conf));
2192 conf->type = type;
2193 conf->cmdline = cmdline;
2194 loc_save(&conf->loc);
2195 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2196 }
2197
2198 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2199 {
2200 struct device_config *conf;
2201 int rc;
2202
2203 QTAILQ_FOREACH(conf, &device_configs, next) {
2204 if (conf->type != type)
2205 continue;
2206 loc_push_restore(&conf->loc);
2207 rc = func(conf->cmdline);
2208 loc_pop(&conf->loc);
2209 if (rc) {
2210 return rc;
2211 }
2212 }
2213 return 0;
2214 }
2215
2216 static int serial_parse(const char *devname)
2217 {
2218 int index = num_serial_hds;
2219 char label[32];
2220
2221 if (strcmp(devname, "none") == 0)
2222 return 0;
2223 snprintf(label, sizeof(label), "serial%d", index);
2224 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2225
2226 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2227 if (!serial_hds[index]) {
2228 error_report("could not connect serial device"
2229 " to character backend '%s'", devname);
2230 return -1;
2231 }
2232 num_serial_hds++;
2233 return 0;
2234 }
2235
2236 Chardev *serial_hd(int i)
2237 {
2238 assert(i >= 0);
2239 if (i < num_serial_hds) {
2240 return serial_hds[i];
2241 }
2242 return NULL;
2243 }
2244
2245 int serial_max_hds(void)
2246 {
2247 return num_serial_hds;
2248 }
2249
2250 static int parallel_parse(const char *devname)
2251 {
2252 static int index = 0;
2253 char label[32];
2254
2255 if (strcmp(devname, "none") == 0)
2256 return 0;
2257 if (index == MAX_PARALLEL_PORTS) {
2258 error_report("too many parallel ports");
2259 exit(1);
2260 }
2261 snprintf(label, sizeof(label), "parallel%d", index);
2262 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2263 if (!parallel_hds[index]) {
2264 error_report("could not connect parallel device"
2265 " to character backend '%s'", devname);
2266 return -1;
2267 }
2268 index++;
2269 return 0;
2270 }
2271
2272 static int debugcon_parse(const char *devname)
2273 {
2274 QemuOpts *opts;
2275
2276 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2277 error_report("invalid character backend '%s'", devname);
2278 exit(1);
2279 }
2280 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2281 if (!opts) {
2282 error_report("already have a debugcon device");
2283 exit(1);
2284 }
2285 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2286 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2287 return 0;
2288 }
2289
2290 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2291 {
2292 const MachineClass *mc1 = a, *mc2 = b;
2293 int res;
2294
2295 if (mc1->family == NULL) {
2296 if (mc2->family == NULL) {
2297 /* Compare standalone machine types against each other; they sort
2298 * in increasing order.
2299 */
2300 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2301 object_class_get_name(OBJECT_CLASS(mc2)));
2302 }
2303
2304 /* Standalone machine types sort after families. */
2305 return 1;
2306 }
2307
2308 if (mc2->family == NULL) {
2309 /* Families sort before standalone machine types. */
2310 return -1;
2311 }
2312
2313 /* Families sort between each other alphabetically increasingly. */
2314 res = strcmp(mc1->family, mc2->family);
2315 if (res != 0) {
2316 return res;
2317 }
2318
2319 /* Within the same family, machine types sort in decreasing order. */
2320 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2321 object_class_get_name(OBJECT_CLASS(mc1)));
2322 }
2323
2324 static MachineClass *machine_parse(const char *name, GSList *machines)
2325 {
2326 MachineClass *mc;
2327 GSList *el;
2328
2329 if (is_help_option(name)) {
2330 printf("Supported machines are:\n");
2331 machines = g_slist_sort(machines, machine_class_cmp);
2332 for (el = machines; el; el = el->next) {
2333 MachineClass *mc = el->data;
2334 if (mc->alias) {
2335 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2336 }
2337 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2338 mc->is_default ? " (default)" : "",
2339 mc->deprecation_reason ? " (deprecated)" : "");
2340 }
2341 exit(0);
2342 }
2343
2344 mc = find_machine(name, machines);
2345 if (!mc) {
2346 error_report("unsupported machine type");
2347 error_printf("Use -machine help to list supported machines\n");
2348 exit(1);
2349 }
2350 return mc;
2351 }
2352
2353 void qemu_add_exit_notifier(Notifier *notify)
2354 {
2355 notifier_list_add(&exit_notifiers, notify);
2356 }
2357
2358 void qemu_remove_exit_notifier(Notifier *notify)
2359 {
2360 notifier_remove(notify);
2361 }
2362
2363 static void qemu_run_exit_notifiers(void)
2364 {
2365 notifier_list_notify(&exit_notifiers, NULL);
2366 }
2367
2368 static const char *pid_file;
2369 static Notifier qemu_unlink_pidfile_notifier;
2370
2371 static void qemu_unlink_pidfile(Notifier *n, void *data)
2372 {
2373 if (pid_file) {
2374 unlink(pid_file);
2375 }
2376 }
2377
2378 bool machine_init_done;
2379
2380 void qemu_add_machine_init_done_notifier(Notifier *notify)
2381 {
2382 notifier_list_add(&machine_init_done_notifiers, notify);
2383 if (machine_init_done) {
2384 notify->notify(notify, NULL);
2385 }
2386 }
2387
2388 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2389 {
2390 notifier_remove(notify);
2391 }
2392
2393 static void qemu_run_machine_init_done_notifiers(void)
2394 {
2395 machine_init_done = true;
2396 notifier_list_notify(&machine_init_done_notifiers, NULL);
2397 }
2398
2399 static const QEMUOption *lookup_opt(int argc, char **argv,
2400 const char **poptarg, int *poptind)
2401 {
2402 const QEMUOption *popt;
2403 int optind = *poptind;
2404 char *r = argv[optind];
2405 const char *optarg;
2406
2407 loc_set_cmdline(argv, optind, 1);
2408 optind++;
2409 /* Treat --foo the same as -foo. */
2410 if (r[1] == '-')
2411 r++;
2412 popt = qemu_options;
2413 for(;;) {
2414 if (!popt->name) {
2415 error_report("invalid option");
2416 exit(1);
2417 }
2418 if (!strcmp(popt->name, r + 1))
2419 break;
2420 popt++;
2421 }
2422 if (popt->flags & HAS_ARG) {
2423 if (optind >= argc) {
2424 error_report("requires an argument");
2425 exit(1);
2426 }
2427 optarg = argv[optind++];
2428 loc_set_cmdline(argv, optind - 2, 2);
2429 } else {
2430 optarg = NULL;
2431 }
2432
2433 *poptarg = optarg;
2434 *poptind = optind;
2435
2436 return popt;
2437 }
2438
2439 static MachineClass *select_machine(void)
2440 {
2441 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2442 MachineClass *machine_class = find_default_machine(machines);
2443 const char *optarg;
2444 QemuOpts *opts;
2445 Location loc;
2446
2447 loc_push_none(&loc);
2448
2449 opts = qemu_get_machine_opts();
2450 qemu_opts_loc_restore(opts);
2451
2452 optarg = qemu_opt_get(opts, "type");
2453 if (optarg) {
2454 machine_class = machine_parse(optarg, machines);
2455 }
2456
2457 if (!machine_class) {
2458 error_report("No machine specified, and there is no default");
2459 error_printf("Use -machine help to list supported machines\n");
2460 exit(1);
2461 }
2462
2463 loc_pop(&loc);
2464 g_slist_free(machines);
2465 return machine_class;
2466 }
2467
2468 static int object_parse_property_opt(Object *obj,
2469 const char *name, const char *value,
2470 const char *skip, Error **errp)
2471 {
2472 if (g_str_equal(name, skip)) {
2473 return 0;
2474 }
2475
2476 if (!object_property_parse(obj, name, value, errp)) {
2477 return -1;
2478 }
2479
2480 return 0;
2481 }
2482
2483 static int machine_set_property(void *opaque,
2484 const char *name, const char *value,
2485 Error **errp)
2486 {
2487 g_autofree char *qom_name = g_strdup(name);
2488 char *p;
2489
2490 for (p = qom_name; *p; p++) {
2491 if (*p == '_') {
2492 *p = '-';
2493 }
2494 }
2495
2496 /* Legacy options do not correspond to MachineState properties. */
2497 if (g_str_equal(qom_name, "accel")) {
2498 return 0;
2499 }
2500 if (g_str_equal(qom_name, "igd-passthru")) {
2501 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2502 return 0;
2503 }
2504 if (g_str_equal(qom_name, "kvm-shadow-mem")) {
2505 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2506 return 0;
2507 }
2508 if (g_str_equal(qom_name, "kernel-irqchip")) {
2509 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2510 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), qom_name, value);
2511 return 0;
2512 }
2513
2514 return object_parse_property_opt(opaque, name, value, "type", errp);
2515 }
2516
2517 /*
2518 * Initial object creation happens before all other
2519 * QEMU data types are created. The majority of objects
2520 * can be created at this point. The rng-egd object
2521 * cannot be created here, as it depends on the chardev
2522 * already existing.
2523 */
2524 static bool object_create_initial(const char *type, QemuOpts *opts)
2525 {
2526 if (user_creatable_print_help(type, opts)) {
2527 exit(0);
2528 }
2529
2530 /*
2531 * Objects should not be made "delayed" without a reason. If you
2532 * add one, state the reason in a comment!
2533 */
2534
2535 /* Reason: rng-egd property "chardev" */
2536 if (g_str_equal(type, "rng-egd")) {
2537 return false;
2538 }
2539
2540 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2541 /* Reason: cryptodev-vhost-user property "chardev" */
2542 if (g_str_equal(type, "cryptodev-vhost-user")) {
2543 return false;
2544 }
2545 #endif
2546
2547 /* Reason: vhost-user-blk-server property "node-name" */
2548 if (g_str_equal(type, "vhost-user-blk-server")) {
2549 return false;
2550 }
2551 /*
2552 * Reason: filter-* property "netdev" etc.
2553 */
2554 if (g_str_equal(type, "filter-buffer") ||
2555 g_str_equal(type, "filter-dump") ||
2556 g_str_equal(type, "filter-mirror") ||
2557 g_str_equal(type, "filter-redirector") ||
2558 g_str_equal(type, "colo-compare") ||
2559 g_str_equal(type, "filter-rewriter") ||
2560 g_str_equal(type, "filter-replay")) {
2561 return false;
2562 }
2563
2564 /* Memory allocation by backends needs to be done
2565 * after configure_accelerator() (due to the tcg_enabled()
2566 * checks at memory_region_init_*()).
2567 *
2568 * Also, allocation of large amounts of memory may delay
2569 * chardev initialization for too long, and trigger timeouts
2570 * on software that waits for a monitor socket to be created
2571 * (e.g. libvirt).
2572 */
2573 if (g_str_has_prefix(type, "memory-backend-")) {
2574 return false;
2575 }
2576
2577 return true;
2578 }
2579
2580
2581 /*
2582 * The remainder of object creation happens after the
2583 * creation of chardev, fsdev, net clients and device data types.
2584 */
2585 static bool object_create_delayed(const char *type, QemuOpts *opts)
2586 {
2587 return !object_create_initial(type, opts);
2588 }
2589
2590
2591 static bool set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2592 MachineClass *mc)
2593 {
2594 uint64_t sz;
2595 const char *mem_str;
2596 const ram_addr_t default_ram_size = mc->default_ram_size;
2597 QemuOpts *opts = qemu_find_opts_singleton("memory");
2598 Location loc;
2599
2600 loc_push_none(&loc);
2601 qemu_opts_loc_restore(opts);
2602
2603 sz = 0;
2604 mem_str = qemu_opt_get(opts, "size");
2605 if (mem_str) {
2606 if (!*mem_str) {
2607 error_report("missing 'size' option value");
2608 exit(EXIT_FAILURE);
2609 }
2610
2611 sz = qemu_opt_get_size(opts, "size", ram_size);
2612
2613 /* Fix up legacy suffix-less format */
2614 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2615 uint64_t overflow_check = sz;
2616
2617 sz *= MiB;
2618 if (sz / MiB != overflow_check) {
2619 error_report("too large 'size' option value");
2620 exit(EXIT_FAILURE);
2621 }
2622 }
2623 }
2624
2625 /* backward compatibility behaviour for case "-m 0" */
2626 if (sz == 0) {
2627 sz = default_ram_size;
2628 }
2629
2630 sz = QEMU_ALIGN_UP(sz, 8192);
2631 if (mc->fixup_ram_size) {
2632 sz = mc->fixup_ram_size(sz);
2633 }
2634 ram_size = sz;
2635 if (ram_size != sz) {
2636 error_report("ram size too large");
2637 exit(EXIT_FAILURE);
2638 }
2639
2640 /* store value for the future use */
2641 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2642 *maxram_size = ram_size;
2643
2644 if (qemu_opt_get(opts, "maxmem")) {
2645 uint64_t slots;
2646
2647 sz = qemu_opt_get_size(opts, "maxmem", 0);
2648 slots = qemu_opt_get_number(opts, "slots", 0);
2649 if (sz < ram_size) {
2650 error_report("invalid value of -m option maxmem: "
2651 "maximum memory size (0x%" PRIx64 ") must be at least "
2652 "the initial memory size (0x" RAM_ADDR_FMT ")",
2653 sz, ram_size);
2654 exit(EXIT_FAILURE);
2655 } else if (slots && sz == ram_size) {
2656 error_report("invalid value of -m option maxmem: "
2657 "memory slots were specified but maximum memory size "
2658 "(0x%" PRIx64 ") is equal to the initial memory size "
2659 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2660 exit(EXIT_FAILURE);
2661 }
2662
2663 *maxram_size = sz;
2664 *ram_slots = slots;
2665 } else if (qemu_opt_get(opts, "slots")) {
2666 error_report("invalid -m option value: missing 'maxmem' option");
2667 exit(EXIT_FAILURE);
2668 }
2669
2670 loc_pop(&loc);
2671 return !!mem_str;
2672 }
2673
2674 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2675 {
2676 GlobalProperty *g;
2677
2678 g = g_malloc0(sizeof(*g));
2679 g->driver = qemu_opt_get(opts, "driver");
2680 g->property = qemu_opt_get(opts, "property");
2681 g->value = qemu_opt_get(opts, "value");
2682 qdev_prop_register_global(g);
2683 return 0;
2684 }
2685
2686 static int qemu_read_default_config_file(void)
2687 {
2688 int ret;
2689 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2690
2691 ret = qemu_read_config_file(file);
2692 if (ret < 0 && ret != -ENOENT) {
2693 return ret;
2694 }
2695
2696 return 0;
2697 }
2698
2699 static void user_register_global_props(void)
2700 {
2701 qemu_opts_foreach(qemu_find_opts("global"),
2702 global_init_func, NULL, NULL);
2703 }
2704
2705 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2706 {
2707 icount_configure(opts, errp);
2708 return 0;
2709 }
2710
2711 static int accelerator_set_property(void *opaque,
2712 const char *name, const char *value,
2713 Error **errp)
2714 {
2715 return object_parse_property_opt(opaque, name, value, "accel", errp);
2716 }
2717
2718 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2719 {
2720 bool *p_init_failed = opaque;
2721 const char *acc = qemu_opt_get(opts, "accel");
2722 AccelClass *ac = accel_find(acc);
2723 AccelState *accel;
2724 int ret;
2725 bool qtest_with_kvm;
2726
2727 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2728
2729 if (!ac) {
2730 *p_init_failed = true;
2731 if (!qtest_with_kvm) {
2732 error_report("invalid accelerator %s", acc);
2733 }
2734 return 0;
2735 }
2736 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2737 object_apply_compat_props(OBJECT(accel));
2738 qemu_opt_foreach(opts, accelerator_set_property,
2739 accel,
2740 &error_fatal);
2741
2742 ret = accel_init_machine(accel, current_machine);
2743 if (ret < 0) {
2744 *p_init_failed = true;
2745 if (!qtest_with_kvm || ret != -ENOENT) {
2746 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2747 }
2748 return 0;
2749 }
2750
2751 return 1;
2752 }
2753
2754 static void configure_accelerators(const char *progname)
2755 {
2756 const char *accel;
2757 bool init_failed = false;
2758
2759 qemu_opts_foreach(qemu_find_opts("icount"),
2760 do_configure_icount, NULL, &error_fatal);
2761
2762 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2763 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2764 char **accel_list, **tmp;
2765
2766 if (accel == NULL) {
2767 /* Select the default accelerator */
2768 bool have_tcg = accel_find("tcg");
2769 bool have_kvm = accel_find("kvm");
2770
2771 if (have_tcg && have_kvm) {
2772 if (g_str_has_suffix(progname, "kvm")) {
2773 /* If the program name ends with "kvm", we prefer KVM */
2774 accel = "kvm:tcg";
2775 } else {
2776 accel = "tcg:kvm";
2777 }
2778 } else if (have_kvm) {
2779 accel = "kvm";
2780 } else if (have_tcg) {
2781 accel = "tcg";
2782 } else {
2783 error_report("No accelerator selected and"
2784 " no default accelerator available");
2785 exit(1);
2786 }
2787 }
2788 accel_list = g_strsplit(accel, ":", 0);
2789
2790 for (tmp = accel_list; *tmp; tmp++) {
2791 /*
2792 * Filter invalid accelerators here, to prevent obscenities
2793 * such as "-machine accel=tcg,,thread=single".
2794 */
2795 if (accel_find(*tmp)) {
2796 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2797 } else {
2798 init_failed = true;
2799 error_report("invalid accelerator %s", *tmp);
2800 }
2801 }
2802 g_strfreev(accel_list);
2803 } else {
2804 if (accel != NULL) {
2805 error_report("The -accel and \"-machine accel=\" options are incompatible");
2806 exit(1);
2807 }
2808 }
2809
2810 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2811 do_configure_accelerator, &init_failed, &error_fatal)) {
2812 if (!init_failed) {
2813 error_report("no accelerator found");
2814 }
2815 exit(1);
2816 }
2817
2818 if (init_failed && !qtest_chrdev) {
2819 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2820 error_report("falling back to %s", ac->name);
2821 }
2822
2823 if (icount_enabled() && !tcg_enabled()) {
2824 error_report("-icount is not allowed with hardware virtualization");
2825 exit(1);
2826 }
2827 }
2828
2829 static void create_default_memdev(MachineState *ms, const char *path)
2830 {
2831 Object *obj;
2832 MachineClass *mc = MACHINE_GET_CLASS(ms);
2833
2834 obj = object_new(path ? TYPE_MEMORY_BACKEND_FILE : TYPE_MEMORY_BACKEND_RAM);
2835 if (path) {
2836 object_property_set_str(obj, "mem-path", path, &error_fatal);
2837 }
2838 object_property_set_int(obj, "size", ms->ram_size, &error_fatal);
2839 object_property_add_child(object_get_objects_root(), mc->default_ram_id,
2840 obj);
2841 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2842 object_property_set_bool(obj, "x-use-canonical-path-for-ramblock-id",
2843 false, &error_fatal);
2844 user_creatable_complete(USER_CREATABLE(obj), &error_fatal);
2845 object_unref(obj);
2846 object_property_set_str(OBJECT(ms), "memory-backend", mc->default_ram_id,
2847 &error_fatal);
2848 }
2849
2850 /*
2851 * Find a likely location for support files using the location of the binary.
2852 * When running from the build tree this will be "$bindir/pc-bios".
2853 * Otherwise, this is CONFIG_QEMU_DATADIR (possibly relocated).
2854 *
2855 * The caller must use g_free() to free the returned data when it is
2856 * no longer required.
2857 */
2858 static char *find_datadir(void)
2859 {
2860 g_autofree char *dir = NULL;
2861
2862 dir = g_build_filename(qemu_get_exec_dir(), "pc-bios", NULL);
2863 if (g_file_test(dir, G_FILE_TEST_IS_DIR)) {
2864 return g_steal_pointer(&dir);
2865 }
2866
2867 return get_relocated_path(CONFIG_QEMU_DATADIR);
2868 }
2869
2870 void qemu_init(int argc, char **argv, char **envp)
2871 {
2872 int i;
2873 int snapshot, linux_boot;
2874 const char *initrd_filename;
2875 const char *kernel_filename, *kernel_cmdline;
2876 const char *boot_order = NULL;
2877 const char *boot_once = NULL;
2878 DisplayState *ds;
2879 QemuOpts *opts, *machine_opts;
2880 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2881 QemuOptsList *olist;
2882 int optind;
2883 const char *optarg;
2884 const char *loadvm = NULL;
2885 MachineClass *machine_class;
2886 const char *cpu_option;
2887 const char *vga_model = NULL;
2888 const char *incoming = NULL;
2889 bool userconfig = true;
2890 bool nographic = false;
2891 int display_remote = 0;
2892 const char *log_mask = NULL;
2893 const char *log_file = NULL;
2894 ram_addr_t maxram_size;
2895 uint64_t ram_slots = 0;
2896 FILE *vmstate_dump_file = NULL;
2897 Error *main_loop_err = NULL;
2898 Error *err = NULL;
2899 bool list_data_dirs = false;
2900 char **dirs;
2901 const char *mem_path = NULL;
2902 bool have_custom_ram_size;
2903 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2904 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2905 int mem_prealloc = 0; /* force preallocation of physical target memory */
2906
2907 os_set_line_buffering();
2908
2909 error_init(argv[0]);
2910 module_call_init(MODULE_INIT_TRACE);
2911
2912 qemu_init_cpu_list();
2913 qemu_init_cpu_loop();
2914
2915 qemu_mutex_lock_iothread();
2916
2917 atexit(qemu_run_exit_notifiers);
2918 qemu_init_exec_dir(argv[0]);
2919
2920 module_call_init(MODULE_INIT_QOM);
2921 module_call_init(MODULE_INIT_MIGRATION);
2922
2923 qemu_add_opts(&qemu_drive_opts);
2924 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2925 qemu_add_drive_opts(&qemu_common_drive_opts);
2926 qemu_add_drive_opts(&qemu_drive_opts);
2927 qemu_add_drive_opts(&bdrv_runtime_opts);
2928 qemu_add_opts(&qemu_chardev_opts);
2929 qemu_add_opts(&qemu_device_opts);
2930 qemu_add_opts(&qemu_netdev_opts);
2931 qemu_add_opts(&qemu_nic_opts);
2932 qemu_add_opts(&qemu_net_opts);
2933 qemu_add_opts(&qemu_rtc_opts);
2934 qemu_add_opts(&qemu_global_opts);
2935 qemu_add_opts(&qemu_mon_opts);
2936 qemu_add_opts(&qemu_trace_opts);
2937 qemu_plugin_add_opts();
2938 qemu_add_opts(&qemu_option_rom_opts);
2939 qemu_add_opts(&qemu_machine_opts);
2940 qemu_add_opts(&qemu_accel_opts);
2941 qemu_add_opts(&qemu_mem_opts);
2942 qemu_add_opts(&qemu_smp_opts);
2943 qemu_add_opts(&qemu_boot_opts);
2944 qemu_add_opts(&qemu_add_fd_opts);
2945 qemu_add_opts(&qemu_object_opts);
2946 qemu_add_opts(&qemu_tpmdev_opts);
2947 qemu_add_opts(&qemu_realtime_opts);
2948 qemu_add_opts(&qemu_overcommit_opts);
2949 qemu_add_opts(&qemu_msg_opts);
2950 qemu_add_opts(&qemu_name_opts);
2951 qemu_add_opts(&qemu_numa_opts);
2952 qemu_add_opts(&qemu_icount_opts);
2953 qemu_add_opts(&qemu_semihosting_config_opts);
2954 qemu_add_opts(&qemu_fw_cfg_opts);
2955 module_call_init(MODULE_INIT_OPTS);
2956
2957 runstate_init();
2958 precopy_infrastructure_init();
2959 postcopy_infrastructure_init();
2960 monitor_init_globals();
2961
2962 if (qcrypto_init(&err) < 0) {
2963 error_reportf_err(err, "cannot initialize crypto: ");
2964 exit(1);
2965 }
2966
2967 QTAILQ_INIT(&vm_change_state_head);
2968 os_setup_early_signal_handling();
2969
2970 cpu_option = NULL;
2971 snapshot = 0;
2972
2973 nb_nics = 0;
2974
2975 bdrv_init_with_whitelist();
2976
2977 autostart = 1;
2978
2979 /* first pass of option parsing */
2980 optind = 1;
2981 while (optind < argc) {
2982 if (argv[optind][0] != '-') {
2983 /* disk image */
2984 optind++;
2985 } else {
2986 const QEMUOption *popt;
2987
2988 popt = lookup_opt(argc, argv, &optarg, &optind);
2989 switch (popt->index) {
2990 case QEMU_OPTION_nouserconfig:
2991 userconfig = false;
2992 break;
2993 }
2994 }
2995 }
2996
2997 if (userconfig) {
2998 if (qemu_read_default_config_file() < 0) {
2999 exit(1);
3000 }
3001 }
3002
3003 /* second pass of option parsing */
3004 optind = 1;
3005 for(;;) {
3006 if (optind >= argc)
3007 break;
3008 if (argv[optind][0] != '-') {
3009 loc_set_cmdline(argv, optind, 1);
3010 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3011 } else {
3012 const QEMUOption *popt;
3013
3014 popt = lookup_opt(argc, argv, &optarg, &optind);
3015 if (!(popt->arch_mask & arch_type)) {
3016 error_report("Option not supported for this target");
3017 exit(1);
3018 }
3019 switch(popt->index) {
3020 case QEMU_OPTION_cpu:
3021 /* hw initialization will check this */
3022 cpu_option = optarg;
3023 break;
3024 case QEMU_OPTION_hda:
3025 case QEMU_OPTION_hdb:
3026 case QEMU_OPTION_hdc:
3027 case QEMU_OPTION_hdd:
3028 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3029 HD_OPTS);
3030 break;
3031 case QEMU_OPTION_blockdev:
3032 {
3033 Visitor *v;
3034 BlockdevOptionsQueueEntry *bdo;
3035
3036 v = qobject_input_visitor_new_str(optarg, "driver",
3037 &error_fatal);
3038
3039 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3040 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3041 &error_fatal);
3042 visit_free(v);
3043 loc_save(&bdo->loc);
3044 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3045 break;
3046 }
3047 case QEMU_OPTION_drive:
3048 if (drive_def(optarg) == NULL) {
3049 exit(1);
3050 }
3051 break;
3052 case QEMU_OPTION_set:
3053 if (qemu_set_option(optarg) != 0)
3054 exit(1);
3055 break;
3056 case QEMU_OPTION_global:
3057 if (qemu_global_option(optarg) != 0)
3058 exit(1);
3059 break;
3060 case QEMU_OPTION_mtdblock:
3061 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3062 break;
3063 case QEMU_OPTION_sd:
3064 drive_add(IF_SD, -1, optarg, SD_OPTS);
3065 break;
3066 case QEMU_OPTION_pflash:
3067 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3068 break;
3069 case QEMU_OPTION_snapshot:
3070 {
3071 Error *blocker = NULL;
3072 snapshot = 1;
3073 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3074 "-snapshot");
3075 replay_add_blocker(blocker);
3076 }
3077 break;
3078 case QEMU_OPTION_numa:
3079 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3080 optarg, true);
3081 if (!opts) {
3082 exit(1);
3083 }
3084 break;
3085 case QEMU_OPTION_display:
3086 parse_display(optarg);
3087 break;
3088 case QEMU_OPTION_nographic:
3089 olist = qemu_find_opts("machine");
3090 qemu_opts_parse_noisily(olist, "graphics=off", false);
3091 nographic = true;
3092 dpy.type = DISPLAY_TYPE_NONE;
3093 break;
3094 case QEMU_OPTION_curses:
3095 #ifdef CONFIG_CURSES
3096 dpy.type = DISPLAY_TYPE_CURSES;
3097 #else
3098 error_report("curses or iconv support is disabled");
3099 exit(1);
3100 #endif
3101 break;
3102 case QEMU_OPTION_portrait:
3103 graphic_rotate = 90;
3104 break;
3105 case QEMU_OPTION_rotate:
3106 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3107 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3108 graphic_rotate != 180 && graphic_rotate != 270) {
3109 error_report("only 90, 180, 270 deg rotation is available");
3110 exit(1);
3111 }
3112 break;
3113 case QEMU_OPTION_kernel:
3114 qemu_opts_set(qemu_find_opts("machine"), NULL, "kernel", optarg,
3115 &error_abort);
3116 break;
3117 case QEMU_OPTION_initrd:
3118 qemu_opts_set(qemu_find_opts("machine"), NULL, "initrd", optarg,
3119 &error_abort);
3120 break;
3121 case QEMU_OPTION_append:
3122 qemu_opts_set(qemu_find_opts("machine"), NULL, "append", optarg,
3123 &error_abort);
3124 break;
3125 case QEMU_OPTION_dtb:
3126 qemu_opts_set(qemu_find_opts("machine"), NULL, "dtb", optarg,
3127 &error_abort);
3128 break;
3129 case QEMU_OPTION_cdrom:
3130 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3131 break;
3132 case QEMU_OPTION_boot:
3133 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3134 optarg, true);
3135 if (!opts) {
3136 exit(1);
3137 }
3138 break;
3139 case QEMU_OPTION_fda:
3140 case QEMU_OPTION_fdb:
3141 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3142 optarg, FD_OPTS);
3143 break;
3144 case QEMU_OPTION_no_fd_bootchk:
3145 fd_bootchk = 0;
3146 break;
3147 case QEMU_OPTION_netdev:
3148 default_net = 0;
3149 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3150 exit(1);
3151 }
3152 break;
3153 case QEMU_OPTION_nic:
3154 default_net = 0;
3155 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3156 exit(1);
3157 }
3158 break;
3159 case QEMU_OPTION_net:
3160 default_net = 0;
3161 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3162 exit(1);
3163 }
3164 break;
3165 #ifdef CONFIG_LIBISCSI
3166 case QEMU_OPTION_iscsi:
3167 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3168 optarg, false);
3169 if (!opts) {
3170 exit(1);
3171 }
3172 break;
3173 #endif
3174 case QEMU_OPTION_audio_help:
3175 audio_legacy_help();
3176 exit (0);
3177 break;
3178 case QEMU_OPTION_audiodev:
3179 audio_parse_option(optarg);
3180 break;
3181 case QEMU_OPTION_soundhw:
3182 select_soundhw (optarg);
3183 break;
3184 case QEMU_OPTION_h:
3185 help(0);
3186 break;
3187 case QEMU_OPTION_version:
3188 version();
3189 exit(0);
3190 break;
3191 case QEMU_OPTION_m:
3192 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3193 optarg, true);
3194 if (!opts) {
3195 exit(EXIT_FAILURE);
3196 }
3197 break;
3198 #ifdef CONFIG_TPM
3199 case QEMU_OPTION_tpmdev:
3200 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3201 exit(1);
3202 }
3203 break;
3204 #endif
3205 case QEMU_OPTION_mempath:
3206 mem_path = optarg;
3207 break;
3208 case QEMU_OPTION_mem_prealloc:
3209 mem_prealloc = 1;
3210 break;
3211 case QEMU_OPTION_d:
3212 log_mask = optarg;
3213 break;
3214 case QEMU_OPTION_D:
3215 log_file = optarg;
3216 break;
3217 case QEMU_OPTION_DFILTER:
3218 qemu_set_dfilter_ranges(optarg, &error_fatal);
3219 break;
3220 case QEMU_OPTION_seed:
3221 qemu_guest_random_seed_main(optarg, &error_fatal);
3222 break;
3223 case QEMU_OPTION_s:
3224 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3225 break;
3226 case QEMU_OPTION_gdb:
3227 add_device_config(DEV_GDB, optarg);
3228 break;
3229 case QEMU_OPTION_L:
3230 if (is_help_option(optarg)) {
3231 list_data_dirs = true;
3232 } else {
3233 qemu_add_data_dir(g_strdup(optarg));
3234 }
3235 break;
3236 case QEMU_OPTION_bios:
3237 qemu_opts_set(qemu_find_opts("machine"), NULL, "firmware", optarg,
3238 &error_abort);
3239 break;
3240 case QEMU_OPTION_singlestep:
3241 singlestep = 1;
3242 break;
3243 case QEMU_OPTION_S:
3244 autostart = 0;
3245 break;
3246 case QEMU_OPTION_k:
3247 keyboard_layout = optarg;
3248 break;
3249 case QEMU_OPTION_vga:
3250 vga_model = optarg;
3251 default_vga = 0;
3252 break;
3253 case QEMU_OPTION_g:
3254 {
3255 const char *p;
3256 int w, h, depth;
3257 p = optarg;
3258 w = strtol(p, (char **)&p, 10);
3259 if (w <= 0) {
3260 graphic_error:
3261 error_report("invalid resolution or depth");
3262 exit(1);
3263 }
3264 if (*p != 'x')
3265 goto graphic_error;
3266 p++;
3267 h = strtol(p, (char **)&p, 10);
3268 if (h <= 0)
3269 goto graphic_error;
3270 if (*p == 'x') {
3271 p++;
3272 depth = strtol(p, (char **)&p, 10);
3273 if (depth != 1 && depth != 2 && depth != 4 &&
3274 depth != 8 && depth != 15 && depth != 16 &&
3275 depth != 24 && depth != 32)
3276 goto graphic_error;
3277 } else if (*p == '\0') {
3278 depth = graphic_depth;
3279 } else {
3280 goto graphic_error;
3281 }
3282
3283 graphic_width = w;
3284 graphic_height = h;
3285 graphic_depth = depth;
3286 }
3287 break;
3288 case QEMU_OPTION_echr:
3289 {
3290 char *r;
3291 term_escape_char = strtol(optarg, &r, 0);
3292 if (r == optarg)
3293 printf("Bad argument to echr\n");
3294 break;
3295 }
3296 case QEMU_OPTION_monitor:
3297 default_monitor = 0;
3298 if (strncmp(optarg, "none", 4)) {
3299 monitor_parse(optarg, "readline", false);
3300 }
3301 break;
3302 case QEMU_OPTION_qmp:
3303 monitor_parse(optarg, "control", false);
3304 default_monitor = 0;
3305 break;
3306 case QEMU_OPTION_qmp_pretty:
3307 monitor_parse(optarg, "control", true);
3308 default_monitor = 0;
3309 break;
3310 case QEMU_OPTION_mon:
3311 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3312 true);
3313 if (!opts) {
3314 exit(1);
3315 }
3316 default_monitor = 0;
3317 break;
3318 case QEMU_OPTION_chardev:
3319 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3320 optarg, true);
3321 if (!opts) {
3322 exit(1);
3323 }
3324 break;
3325 case QEMU_OPTION_fsdev:
3326 olist = qemu_find_opts("fsdev");
3327 if (!olist) {
3328 error_report("fsdev support is disabled");
3329 exit(1);
3330 }
3331 opts = qemu_opts_parse_noisily(olist, optarg, true);
3332 if (!opts) {
3333 exit(1);
3334 }
3335 break;
3336 case QEMU_OPTION_virtfs: {
3337 QemuOpts *fsdev;
3338 QemuOpts *device;
3339 const char *writeout, *sock_fd, *socket, *path, *security_model,
3340 *multidevs;
3341
3342 olist = qemu_find_opts("virtfs");
3343 if (!olist) {
3344 error_report("virtfs support is disabled");
3345 exit(1);
3346 }
3347 opts = qemu_opts_parse_noisily(olist, optarg, true);
3348 if (!opts) {
3349 exit(1);
3350 }
3351
3352 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3353 qemu_opt_get(opts, "mount_tag") == NULL) {
3354 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3355 exit(1);
3356 }
3357 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3358 qemu_opts_id(opts) ?:
3359 qemu_opt_get(opts, "mount_tag"),
3360 1, NULL);
3361 if (!fsdev) {
3362 error_report("duplicate or invalid fsdev id: %s",
3363 qemu_opt_get(opts, "mount_tag"));
3364 exit(1);
3365 }
3366
3367 writeout = qemu_opt_get(opts, "writeout");
3368 if (writeout) {
3369 #ifdef CONFIG_SYNC_FILE_RANGE
3370 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3371 #else
3372 error_report("writeout=immediate not supported "
3373 "on this platform");
3374 exit(1);
3375 #endif
3376 }
3377 qemu_opt_set(fsdev, "fsdriver",
3378 qemu_opt_get(opts, "fsdriver"), &error_abort);
3379 path = qemu_opt_get(opts, "path");
3380 if (path) {
3381 qemu_opt_set(fsdev, "path", path, &error_abort);
3382 }
3383 security_model = qemu_opt_get(opts, "security_model");
3384 if (security_model) {
3385 qemu_opt_set(fsdev, "security_model", security_model,
3386 &error_abort);
3387 }
3388 socket = qemu_opt_get(opts, "socket");
3389 if (socket) {
3390 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3391 }
3392 sock_fd = qemu_opt_get(opts, "sock_fd");
3393 if (sock_fd) {
3394 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3395 }
3396
3397 qemu_opt_set_bool(fsdev, "readonly",
3398 qemu_opt_get_bool(opts, "readonly", 0),
3399 &error_abort);
3400 multidevs = qemu_opt_get(opts, "multidevs");
3401 if (multidevs) {
3402 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3403 }
3404 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3405 &error_abort);
3406 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3407 qemu_opt_set(device, "fsdev",
3408 qemu_opts_id(fsdev), &error_abort);
3409 qemu_opt_set(device, "mount_tag",
3410 qemu_opt_get(opts, "mount_tag"), &error_abort);
3411 break;
3412 }
3413 case QEMU_OPTION_serial:
3414 add_device_config(DEV_SERIAL, optarg);
3415 default_serial = 0;
3416 if (strncmp(optarg, "mon:", 4) == 0) {
3417 default_monitor = 0;
3418 }
3419 break;
3420 case QEMU_OPTION_watchdog:
3421 if (watchdog) {
3422 error_report("only one watchdog option may be given");
3423 exit(1);
3424 }
3425 watchdog = optarg;
3426 break;
3427 case QEMU_OPTION_watchdog_action:
3428 if (select_watchdog_action(optarg) == -1) {
3429 error_report("unknown -watchdog-action parameter");
3430 exit(1);
3431 }
3432 break;
3433 case QEMU_OPTION_parallel:
3434 add_device_config(DEV_PARALLEL, optarg);
3435 default_parallel = 0;
3436 if (strncmp(optarg, "mon:", 4) == 0) {
3437 default_monitor = 0;
3438 }
3439 break;
3440 case QEMU_OPTION_debugcon:
3441 add_device_config(DEV_DEBUGCON, optarg);
3442 break;
3443 case QEMU_OPTION_loadvm:
3444 loadvm = optarg;
3445 break;
3446 case QEMU_OPTION_full_screen:
3447 dpy.has_full_screen = true;
3448 dpy.full_screen = true;
3449 break;
3450 case QEMU_OPTION_alt_grab:
3451 alt_grab = 1;
3452 break;
3453 case QEMU_OPTION_ctrl_grab:
3454 ctrl_grab = 1;
3455 break;
3456 case QEMU_OPTION_no_quit:
3457 dpy.has_window_close = true;
3458 dpy.window_close = false;
3459 break;
3460 case QEMU_OPTION_sdl:
3461 #ifdef CONFIG_SDL
3462 dpy.type = DISPLAY_TYPE_SDL;
3463 break;
3464 #else
3465 error_report("SDL support is disabled");
3466 exit(1);
3467 #endif
3468 case QEMU_OPTION_pidfile:
3469 pid_file = optarg;
3470 break;
3471 case QEMU_OPTION_win2k_hack:
3472 win2k_install_hack = 1;
3473 break;
3474 case QEMU_OPTION_acpitable:
3475 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3476 optarg, true);
3477 if (!opts) {
3478 exit(1);
3479 }
3480 acpi_table_add(opts, &error_fatal);
3481 break;
3482 case QEMU_OPTION_smbios:
3483 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3484 optarg, false);
3485 if (!opts) {
3486 exit(1);
3487 }
3488 smbios_entry_add(opts, &error_fatal);
3489 break;
3490 case QEMU_OPTION_fwcfg:
3491 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3492 optarg, true);
3493 if (opts == NULL) {
3494 exit(1);
3495 }
3496 break;
3497 case QEMU_OPTION_preconfig:
3498 preconfig_exit_requested = false;
3499 break;
3500 case QEMU_OPTION_enable_kvm:
3501 olist = qemu_find_opts("machine");
3502 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3503 break;
3504 case QEMU_OPTION_M:
3505 case QEMU_OPTION_machine:
3506 olist = qemu_find_opts("machine");
3507 opts = qemu_opts_parse_noisily(olist, optarg, true);
3508 if (!opts) {
3509 exit(1);
3510 }
3511 break;
3512 case QEMU_OPTION_accel:
3513 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3514 optarg, true);
3515 optarg = qemu_opt_get(accel_opts, "accel");
3516 if (!optarg || is_help_option(optarg)) {
3517 printf("Accelerators supported in QEMU binary:\n");
3518 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3519 false);
3520 for (el = accel_list; el; el = el->next) {
3521 gchar *typename = g_strdup(object_class_get_name(
3522 OBJECT_CLASS(el->data)));
3523 /* omit qtest which is used for tests only */
3524 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3525 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3526 gchar **optname = g_strsplit(typename,
3527 ACCEL_CLASS_SUFFIX, 0);
3528 printf("%s\n", optname[0]);
3529 g_strfreev(optname);
3530 }
3531 g_free(typename);
3532 }
3533 g_slist_free(accel_list);
3534 exit(0);
3535 }
3536 break;
3537 case QEMU_OPTION_usb:
3538 olist = qemu_find_opts("machine");
3539 qemu_opts_parse_noisily(olist, "usb=on", false);
3540 break;
3541 case QEMU_OPTION_usbdevice:
3542 error_report("'-usbdevice' is deprecated, please use "
3543 "'-device usb-...' instead");
3544 olist = qemu_find_opts("machine");
3545 qemu_opts_parse_noisily(olist, "usb=on", false);
3546 add_device_config(DEV_USB, optarg);
3547 break;
3548 case QEMU_OPTION_device:
3549 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3550 optarg, true)) {
3551 exit(1);
3552 }
3553 break;
3554 case QEMU_OPTION_smp:
3555 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3556 optarg, true)) {
3557 exit(1);
3558 }
3559 break;
3560 case QEMU_OPTION_vnc:
3561 vnc_parse(optarg, &error_fatal);
3562 break;
3563 case QEMU_OPTION_no_acpi:
3564 olist = qemu_find_opts("machine");
3565 qemu_opts_parse_noisily(olist, "acpi=off", false);
3566 break;
3567 case QEMU_OPTION_no_hpet:
3568 olist = qemu_find_opts("machine");
3569 qemu_opts_parse_noisily(olist, "hpet=off", false);
3570 break;
3571 case QEMU_OPTION_no_reboot:
3572 no_reboot = 1;
3573 break;
3574 case QEMU_OPTION_no_shutdown:
3575 no_shutdown = 1;
3576 break;
3577 case QEMU_OPTION_show_cursor:
3578 warn_report("The -show-cursor option is deprecated. Please "
3579 "add show-cursor=on to your -display options.");
3580 warn_report("When using the default display you can use "
3581 "-display default,show-cursor=on");
3582 dpy.has_show_cursor = true;
3583 dpy.show_cursor = true;
3584 break;
3585 case QEMU_OPTION_uuid:
3586 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3587 error_report("failed to parse UUID string: wrong format");
3588 exit(1);
3589 }
3590 qemu_uuid_set = true;
3591 break;
3592 case QEMU_OPTION_option_rom:
3593 if (nb_option_roms >= MAX_OPTION_ROMS) {
3594 error_report("too many option ROMs");
3595 exit(1);
3596 }
3597 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3598 optarg, true);
3599 if (!opts) {
3600 exit(1);
3601 }
3602 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3603 option_rom[nb_option_roms].bootindex =
3604 qemu_opt_get_number(opts, "bootindex", -1);
3605 if (!option_rom[nb_option_roms].name) {
3606 error_report("Option ROM file is not specified");
3607 exit(1);
3608 }
3609 nb_option_roms++;
3610 break;
3611 case QEMU_OPTION_semihosting:
3612 qemu_semihosting_enable();
3613 break;
3614 case QEMU_OPTION_semihosting_config:
3615 if (qemu_semihosting_config_options(optarg) != 0) {
3616 exit(1);
3617 }
3618 break;
3619 case QEMU_OPTION_name:
3620 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3621 optarg, true);
3622 if (!opts) {
3623 exit(1);
3624 }
3625 /* Capture guest name if -msg guest-name is used later */
3626 error_guest_name = qemu_opt_get(opts, "guest");
3627 break;
3628 case QEMU_OPTION_prom_env:
3629 if (nb_prom_envs >= MAX_PROM_ENVS) {
3630 error_report("too many prom variables");
3631 exit(1);
3632 }
3633 prom_envs[nb_prom_envs] = optarg;
3634 nb_prom_envs++;
3635 break;
3636 case QEMU_OPTION_old_param:
3637 old_param = 1;
3638 break;
3639 case QEMU_OPTION_rtc:
3640 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3641 false);
3642 if (!opts) {
3643 exit(1);
3644 }
3645 break;
3646 case QEMU_OPTION_tb_size:
3647 #ifndef CONFIG_TCG
3648 error_report("TCG is disabled");
3649 exit(1);
3650 #endif
3651 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3652 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3653 break;
3654 case QEMU_OPTION_icount:
3655 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3656 optarg, true);
3657 if (!icount_opts) {
3658 exit(1);
3659 }
3660 break;
3661 case QEMU_OPTION_incoming:
3662 if (!incoming) {
3663 runstate_set(RUN_STATE_INMIGRATE);
3664 }
3665 incoming = optarg;
3666 break;
3667 case QEMU_OPTION_only_migratable:
3668 only_migratable = 1;
3669 break;
3670 case QEMU_OPTION_nodefaults:
3671 has_defaults = 0;
3672 break;
3673 case QEMU_OPTION_xen_domid:
3674 if (!(xen_available())) {
3675 error_report("Option not supported for this target");
3676 exit(1);
3677 }
3678 xen_domid = atoi(optarg);
3679 break;
3680 case QEMU_OPTION_xen_attach:
3681 if (!(xen_available())) {
3682 error_report("Option not supported for this target");
3683 exit(1);
3684 }
3685 xen_mode = XEN_ATTACH;
3686 break;
3687 case QEMU_OPTION_xen_domid_restrict:
3688 if (!(xen_available())) {
3689 error_report("Option not supported for this target");
3690 exit(1);
3691 }
3692 xen_domid_restrict = true;
3693 break;
3694 case QEMU_OPTION_trace:
3695 trace_opt_parse(optarg);
3696 break;
3697 case QEMU_OPTION_plugin:
3698 qemu_plugin_opt_parse(optarg, &plugin_list);
3699 break;
3700 case QEMU_OPTION_readconfig:
3701 {
3702 int ret = qemu_read_config_file(optarg);
3703 if (ret < 0) {
3704 error_report("read config %s: %s", optarg,
3705 strerror(-ret));
3706 exit(1);
3707 }
3708 break;
3709 }
3710 case QEMU_OPTION_spice:
3711 olist = qemu_find_opts_err("spice", NULL);
3712 if (!olist) {
3713 ui_module_load_one("spice-core");
3714 olist = qemu_find_opts("spice");
3715 }
3716 if (!olist) {
3717 error_report("spice support is disabled");
3718 exit(1);
3719 }
3720 opts = qemu_opts_parse_noisily(olist, optarg, false);
3721 if (!opts) {
3722 exit(1);
3723 }
3724 display_remote++;
3725 break;
3726 case QEMU_OPTION_writeconfig:
3727 {
3728 FILE *fp;
3729 if (strcmp(optarg, "-") == 0) {
3730 fp = stdout;
3731 } else {
3732 fp = fopen(optarg, "w");
3733 if (fp == NULL) {
3734 error_report("open %s: %s", optarg,
3735 strerror(errno));
3736 exit(1);
3737 }
3738 }
3739 qemu_config_write(fp);
3740 if (fp != stdout) {
3741 fclose(fp);
3742 }
3743 break;
3744 }
3745 case QEMU_OPTION_qtest:
3746 qtest_chrdev = optarg;
3747 break;
3748 case QEMU_OPTION_qtest_log:
3749 qtest_log = optarg;
3750 break;
3751 case QEMU_OPTION_sandbox:
3752 olist = qemu_find_opts("sandbox");
3753 if (!olist) {
3754 #ifndef CONFIG_SECCOMP
3755 error_report("-sandbox support is not enabled "
3756 "in this QEMU binary");
3757 #endif
3758 exit(1);
3759 }
3760
3761 opts = qemu_opts_parse_noisily(olist, optarg, true);
3762 if (!opts) {
3763 exit(1);
3764 }
3765 break;
3766 case QEMU_OPTION_add_fd:
3767 #ifndef _WIN32
3768 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3769 optarg, false);
3770 if (!opts) {
3771 exit(1);
3772 }
3773 #else
3774 error_report("File descriptor passing is disabled on this "
3775 "platform");
3776 exit(1);
3777 #endif
3778 break;
3779 case QEMU_OPTION_object:
3780 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3781 optarg, true);
3782 if (!opts) {
3783 exit(1);
3784 }
3785 break;
3786 case QEMU_OPTION_realtime:
3787 warn_report("'-realtime mlock=...' is deprecated, please use "
3788 "'-overcommit mem-lock=...' instead");
3789 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3790 optarg, false);
3791 if (!opts) {
3792 exit(1);
3793 }
3794 /* Don't override the -overcommit option if set */
3795 enable_mlock = enable_mlock ||
3796 qemu_opt_get_bool(opts, "mlock", true);
3797 break;
3798 case QEMU_OPTION_overcommit:
3799 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3800 optarg, false);
3801 if (!opts) {
3802 exit(1);
3803 }
3804 /* Don't override the -realtime option if set */
3805 enable_mlock = enable_mlock ||
3806 qemu_opt_get_bool(opts, "mem-lock", false);
3807 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3808 break;
3809 case QEMU_OPTION_msg:
3810 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3811 false);
3812 if (!opts) {
3813 exit(1);
3814 }
3815 configure_msg(opts);
3816 break;
3817 case QEMU_OPTION_dump_vmstate:
3818 if (vmstate_dump_file) {
3819 error_report("only one '-dump-vmstate' "
3820 "option may be given");
3821 exit(1);
3822 }
3823 vmstate_dump_file = fopen(optarg, "w");
3824 if (vmstate_dump_file == NULL) {
3825 error_report("open %s: %s", optarg, strerror(errno));
3826 exit(1);
3827 }
3828 break;
3829 case QEMU_OPTION_enable_sync_profile:
3830 qsp_enable();
3831 break;
3832 case QEMU_OPTION_nouserconfig:
3833 /* Nothing to be parsed here. Especially, do not error out below. */
3834 break;
3835 default:
3836 if (os_parse_cmd_args(popt->index, optarg)) {
3837 error_report("Option not supported in this build");
3838 exit(1);
3839 }
3840 }
3841 }
3842 }
3843 /*
3844 * Clear error location left behind by the loop.
3845 * Best done right after the loop. Do not insert code here!
3846 */
3847 loc_set_none();
3848
3849 /*
3850 * Check for -cpu help and -device help before we call select_machine(),
3851 * which will return an error if the architecture has no default machine
3852 * type and the user did not specify one, so that the user doesn't need
3853 * to say '-cpu help -machine something'.
3854 */
3855 if (cpu_option && is_help_option(cpu_option)) {
3856 list_cpus(cpu_option);
3857 exit(0);
3858 }
3859
3860 if (qemu_opts_foreach(qemu_find_opts("device"),
3861 device_help_func, NULL, NULL)) {
3862 exit(0);
3863 }
3864
3865 user_register_global_props();
3866
3867 replay_configure(icount_opts);
3868
3869 if (incoming && !preconfig_exit_requested) {
3870 error_report("'preconfig' and 'incoming' options are "
3871 "mutually exclusive");
3872 exit(EXIT_FAILURE);
3873 }
3874
3875 configure_rtc(qemu_find_opts_singleton("rtc"));
3876
3877 machine_class = select_machine();
3878 object_set_machine_compat_props(machine_class->compat_props);
3879
3880 have_custom_ram_size = set_memory_options(&ram_slots, &maxram_size,
3881 machine_class);
3882
3883 os_daemonize();
3884 rcu_disable_atfork();
3885
3886 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3887 error_reportf_err(err, "cannot create PID file: ");
3888 exit(1);
3889 }
3890
3891 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3892 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3893
3894 if (qemu_init_main_loop(&main_loop_err)) {
3895 error_report_err(main_loop_err);
3896 exit(1);
3897 }
3898
3899 #ifdef CONFIG_SECCOMP
3900 olist = qemu_find_opts_err("sandbox", NULL);
3901 if (olist) {
3902 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3903 }
3904 #endif
3905
3906 qemu_opts_foreach(qemu_find_opts("name"),
3907 parse_name, NULL, &error_fatal);
3908
3909 #ifndef _WIN32
3910 qemu_opts_foreach(qemu_find_opts("add-fd"),
3911 parse_add_fd, NULL, &error_fatal);
3912
3913 qemu_opts_foreach(qemu_find_opts("add-fd"),
3914 cleanup_add_fd, NULL, &error_fatal);
3915 #endif
3916
3917 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3918 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3919 exit(0);
3920 }
3921 object_property_add_child(object_get_root(), "machine",
3922 OBJECT(current_machine));
3923 object_property_add_child(container_get(OBJECT(current_machine),
3924 "/unattached"),
3925 "sysbus", OBJECT(sysbus_get_default()));
3926
3927 if (machine_class->minimum_page_bits) {
3928 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3929 /* This would be a board error: specifying a minimum smaller than
3930 * a target's compile-time fixed setting.
3931 */
3932 g_assert_not_reached();
3933 }
3934 }
3935
3936 cpu_exec_init_all();
3937
3938 if (machine_class->hw_version) {
3939 qemu_set_hw_version(machine_class->hw_version);
3940 }
3941
3942 if (!trace_init_backends()) {
3943 exit(1);
3944 }
3945 trace_init_file();
3946
3947 /* Open the logfile at this point and set the log mask if necessary.
3948 */
3949 qemu_set_log_filename(log_file, &error_fatal);
3950 if (log_mask) {
3951 int mask;
3952 mask = qemu_str_to_log_mask(log_mask);
3953 if (!mask) {
3954 qemu_print_log_usage(stdout);
3955 exit(1);
3956 }
3957 qemu_set_log(mask);
3958 } else {
3959 qemu_set_log(0);
3960 }
3961
3962 /* add configured firmware directories */
3963 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3964 for (i = 0; dirs[i] != NULL; i++) {
3965 qemu_add_data_dir(get_relocated_path(dirs[i]));
3966 }
3967 g_strfreev(dirs);
3968
3969 /* try to find datadir relative to the executable path */
3970 qemu_add_data_dir(find_datadir());
3971
3972 /* -L help lists the data directories and exits. */
3973 if (list_data_dirs) {
3974 for (i = 0; i < data_dir_idx; i++) {
3975 printf("%s\n", data_dir[i]);
3976 }
3977 exit(0);
3978 }
3979
3980 machine_class->smp_parse(current_machine,
3981 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3982
3983 /* sanity-check smp_cpus and max_cpus against machine_class */
3984 if (current_machine->smp.cpus < machine_class->min_cpus) {
3985 error_report("Invalid SMP CPUs %d. The min CPUs "
3986 "supported by machine '%s' is %d",
3987 current_machine->smp.cpus,
3988 machine_class->name, machine_class->min_cpus);
3989 exit(1);
3990 }
3991 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3992 error_report("Invalid SMP CPUs %d. The max CPUs "
3993 "supported by machine '%s' is %d",
3994 current_machine->smp.max_cpus,
3995 machine_class->name, machine_class->max_cpus);
3996 exit(1);
3997 }
3998
3999 if (mem_prealloc) {
4000 char *val;
4001
4002 val = g_strdup_printf("%d", current_machine->smp.cpus);
4003 object_register_sugar_prop("memory-backend", "prealloc-threads", val);
4004 g_free(val);
4005 object_register_sugar_prop("memory-backend", "prealloc", "on");
4006 }
4007
4008 /*
4009 * Get the default machine options from the machine if it is not already
4010 * specified either by the configuration file or by the command line.
4011 */
4012 if (machine_class->default_machine_opts) {
4013 qemu_opts_set_defaults(qemu_find_opts("machine"),
4014 machine_class->default_machine_opts, 0);
4015 }
4016
4017 /* process plugin before CPUs are created, but once -smp has been parsed */
4018 if (qemu_plugin_load_list(&plugin_list)) {
4019 exit(1);
4020 }
4021
4022 qemu_opts_foreach(qemu_find_opts("device"),
4023 default_driver_check, NULL, NULL);
4024 qemu_opts_foreach(qemu_find_opts("global"),
4025 default_driver_check, NULL, NULL);
4026
4027 if (!vga_model && !default_vga) {
4028 vga_interface_type = VGA_DEVICE;
4029 }
4030 if (!has_defaults || machine_class->no_serial) {
4031 default_serial = 0;
4032 }
4033 if (!has_defaults || machine_class->no_parallel) {
4034 default_parallel = 0;
4035 }
4036 if (!has_defaults || machine_class->no_floppy) {
4037 default_floppy = 0;
4038 }
4039 if (!has_defaults || machine_class->no_cdrom) {
4040 default_cdrom = 0;
4041 }
4042 if (!has_defaults || machine_class->no_sdcard) {
4043 default_sdcard = 0;
4044 }
4045 if (!has_defaults) {
4046 default_monitor = 0;
4047 default_net = 0;
4048 default_vga = 0;
4049 }
4050
4051 if (is_daemonized()) {
4052 if (!preconfig_exit_requested) {
4053 error_report("'preconfig' and 'daemonize' options are "
4054 "mutually exclusive");
4055 exit(EXIT_FAILURE);
4056 }
4057
4058 /* According to documentation and historically, -nographic redirects
4059 * serial port, parallel port and monitor to stdio, which does not work
4060 * with -daemonize. We can redirect these to null instead, but since
4061 * -nographic is legacy, let's just error out.
4062 * We disallow -nographic only if all other ports are not redirected
4063 * explicitly, to not break existing legacy setups which uses
4064 * -nographic _and_ redirects all ports explicitly - this is valid
4065 * usage, -nographic is just a no-op in this case.
4066 */
4067 if (nographic
4068 && (default_parallel || default_serial || default_monitor)) {
4069 error_report("-nographic cannot be used with -daemonize");
4070 exit(1);
4071 }
4072 #ifdef CONFIG_CURSES
4073 if (dpy.type == DISPLAY_TYPE_CURSES) {
4074 error_report("curses display cannot be used with -daemonize");
4075 exit(1);
4076 }
4077 #endif
4078 }
4079
4080 if (nographic) {
4081 if (default_parallel)
4082 add_device_config(DEV_PARALLEL, "null");
4083 if (default_serial && default_monitor) {
4084 add_device_config(DEV_SERIAL, "mon:stdio");
4085 } else {
4086 if (default_serial)
4087 add_device_config(DEV_SERIAL, "stdio");
4088 if (default_monitor)
4089 monitor_parse("stdio", "readline", false);
4090 }
4091 } else {
4092 if (default_serial)
4093 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4094 if (default_parallel)
4095 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4096 if (default_monitor)
4097 monitor_parse("vc:80Cx24C", "readline", false);
4098 }
4099
4100 #if defined(CONFIG_VNC)
4101 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4102 display_remote++;
4103 }
4104 #endif
4105 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4106 if (!qemu_display_find_default(&dpy)) {
4107 dpy.type = DISPLAY_TYPE_NONE;
4108 #if defined(CONFIG_VNC)
4109 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4110 #endif
4111 }
4112 }
4113 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4114 dpy.type = DISPLAY_TYPE_NONE;
4115 }
4116
4117 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4118 error_report("-alt-grab and -ctrl-grab are only valid "
4119 "for SDL, ignoring option");
4120 }
4121 if (dpy.has_window_close &&
4122 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4123 error_report("-no-quit is only valid for GTK and SDL, "
4124 "ignoring option");
4125 }
4126
4127 qemu_display_early_init(&dpy);
4128 qemu_console_early_init();
4129
4130 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4131 #if defined(CONFIG_OPENGL)
4132 error_report("OpenGL is not supported by the display");
4133 #else
4134 error_report("OpenGL support is disabled");
4135 #endif
4136 exit(1);
4137 }
4138
4139 page_size_init();
4140 socket_init();
4141
4142 qemu_opts_foreach(qemu_find_opts("object"),
4143 user_creatable_add_opts_foreach,
4144 object_create_initial, &error_fatal);
4145
4146 /* spice needs the timers to be initialized by this point */
4147 /* spice must initialize before audio as it changes the default auiodev */
4148 /* spice must initialize before chardevs (for spicevmc and spiceport) */
4149 qemu_spice.init();
4150
4151 qemu_opts_foreach(qemu_find_opts("chardev"),
4152 chardev_init_func, NULL, &error_fatal);
4153
4154 #ifdef CONFIG_VIRTFS
4155 qemu_opts_foreach(qemu_find_opts("fsdev"),
4156 fsdev_init_func, NULL, &error_fatal);
4157 #endif
4158
4159 /*
4160 * Note: we need to create audio and block backends before
4161 * machine_set_property(), so machine properties can refer to
4162 * them.
4163 */
4164 configure_blockdev(&bdo_queue, machine_class, snapshot);
4165 audio_init_audiodevs();
4166
4167 machine_opts = qemu_get_machine_opts();
4168 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4169 &error_fatal);
4170 current_machine->ram_size = ram_size;
4171 current_machine->maxram_size = maxram_size;
4172 current_machine->ram_slots = ram_slots;
4173
4174 /*
4175 * Note: uses machine properties such as kernel-irqchip, must run
4176 * after machine_set_property().
4177 */
4178 configure_accelerators(argv[0]);
4179
4180 /*
4181 * Beware, QOM objects created before this point miss global and
4182 * compat properties.
4183 *
4184 * Global properties get set up by qdev_prop_register_global(),
4185 * called from user_register_global_props(), and certain option
4186 * desugaring. Also in CPU feature desugaring (buried in
4187 * parse_cpu_option()), which happens below this point, but may
4188 * only target the CPU type, which can only be created after
4189 * parse_cpu_option() returned the type.
4190 *
4191 * Machine compat properties: object_set_machine_compat_props().
4192 * Accelerator compat props: object_set_accelerator_compat_props(),
4193 * called from configure_accelerator().
4194 */
4195
4196 if (!qtest_enabled() && machine_class->deprecation_reason) {
4197 error_report("Machine type '%s' is deprecated: %s",
4198 machine_class->name, machine_class->deprecation_reason);
4199 }
4200
4201 /*
4202 * Note: creates a QOM object, must run only after global and
4203 * compat properties have been set up.
4204 */
4205 migration_object_init();
4206
4207 if (qtest_chrdev) {
4208 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4209 }
4210
4211 machine_opts = qemu_get_machine_opts();
4212 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4213 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4214 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4215 bios_name = qemu_opt_get(machine_opts, "firmware");
4216
4217 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4218 if (opts) {
4219 boot_order = qemu_opt_get(opts, "order");
4220 if (boot_order) {
4221 validate_bootdevices(boot_order, &error_fatal);
4222 }
4223
4224 boot_once = qemu_opt_get(opts, "once");
4225 if (boot_once) {
4226 validate_bootdevices(boot_once, &error_fatal);
4227 }
4228
4229 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4230 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4231 }
4232
4233 if (!boot_order) {
4234 boot_order = machine_class->default_boot_order;
4235 }
4236
4237 if (!kernel_cmdline) {
4238 kernel_cmdline = "";
4239 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4240 }
4241
4242 linux_boot = (kernel_filename != NULL);
4243
4244 if (!linux_boot && *kernel_cmdline != '\0') {
4245 error_report("-append only allowed with -kernel option");
4246 exit(1);
4247 }
4248
4249 if (!linux_boot && initrd_filename != NULL) {
4250 error_report("-initrd only allowed with -kernel option");
4251 exit(1);
4252 }
4253
4254 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4255 /* fall back to the -kernel/-append */
4256 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4257 }
4258
4259 /* initialize cpu timers and VCPU throttle modules */
4260 cpu_timers_init();
4261
4262 if (default_net) {
4263 QemuOptsList *net = qemu_find_opts("net");
4264 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4265 #ifdef CONFIG_SLIRP
4266 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4267 #endif
4268 }
4269
4270 if (net_init_clients(&err) < 0) {
4271 error_report_err(err);
4272 exit(1);
4273 }
4274
4275 qemu_opts_foreach(qemu_find_opts("object"),
4276 user_creatable_add_opts_foreach,
4277 object_create_delayed, &error_fatal);
4278
4279 if (tpm_init() < 0) {
4280 exit(1);
4281 }
4282
4283 blk_mig_init();
4284 ram_mig_init();
4285 dirty_bitmap_mig_init();
4286
4287 qemu_opts_foreach(qemu_find_opts("mon"),
4288 mon_init_func, NULL, &error_fatal);
4289
4290 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4291 exit(1);
4292 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4293 exit(1);
4294 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4295 exit(1);
4296
4297 /* now chardevs have been created we may have semihosting to connect */
4298 qemu_semihosting_connect_chardevs();
4299 qemu_semihosting_console_init();
4300
4301 /* If no default VGA is requested, the default is "none". */
4302 if (default_vga) {
4303 vga_model = get_default_vga_model(machine_class);
4304 }
4305 if (vga_model) {
4306 select_vgahw(machine_class, vga_model);
4307 }
4308
4309 if (watchdog) {
4310 i = select_watchdog(watchdog);
4311 if (i > 0)
4312 exit (i == 1 ? 1 : 0);
4313 }
4314
4315 /* This checkpoint is required by replay to separate prior clock
4316 reading from the other reads, because timer polling functions query
4317 clock values from the log. */
4318 replay_checkpoint(CHECKPOINT_INIT);
4319 qdev_machine_init();
4320
4321 current_machine->boot_order = boot_order;
4322
4323 /* parse features once if machine provides default cpu_type */
4324 current_machine->cpu_type = machine_class->default_cpu_type;
4325 if (cpu_option) {
4326 current_machine->cpu_type = parse_cpu_option(cpu_option);
4327 }
4328
4329 if (current_machine->ram_memdev_id) {
4330 Object *backend;
4331 ram_addr_t backend_size;
4332
4333 backend = object_resolve_path_type(current_machine->ram_memdev_id,
4334 TYPE_MEMORY_BACKEND, NULL);
4335 if (!backend) {
4336 error_report("Memory backend '%s' not found",
4337 current_machine->ram_memdev_id);
4338 exit(EXIT_FAILURE);
4339 }
4340 backend_size = object_property_get_uint(backend, "size", &error_abort);
4341 if (have_custom_ram_size && backend_size != ram_size) {
4342 error_report("Size specified by -m option must match size of "
4343 "explicitly specified 'memory-backend' property");
4344 exit(EXIT_FAILURE);
4345 }
4346 if (mem_path) {
4347 error_report("'-mem-path' can't be used together with"
4348 "'-machine memory-backend'");
4349 exit(EXIT_FAILURE);
4350 }
4351 ram_size = backend_size;
4352 }
4353
4354 if (!xen_enabled()) {
4355 /* On 32-bit hosts, QEMU is limited by virtual address space */
4356 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4357 error_report("at most 2047 MB RAM can be simulated");
4358 exit(1);
4359 }
4360 }
4361
4362 parse_numa_opts(current_machine);
4363
4364 /* do monitor/qmp handling at preconfig state if requested */
4365 qemu_main_loop();
4366
4367 if (machine_class->default_ram_id && current_machine->ram_size &&
4368 numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
4369 create_default_memdev(current_machine, mem_path);
4370 }
4371
4372 /* from here on runstate is RUN_STATE_PRELAUNCH */
4373 machine_run_board_init(current_machine);
4374
4375 /*
4376 * TODO To drop support for deprecated bogus if=..., move
4377 * drive_check_orphaned() here, replacing this call. Also drop
4378 * its deprecation warning, along with DriveInfo member
4379 * @claimed_by_board.
4380 */
4381 drive_mark_claimed_by_board();
4382
4383 realtime_init();
4384
4385 soundhw_init();
4386
4387 if (hax_enabled()) {
4388 hax_sync_vcpus();
4389 }
4390
4391 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4392 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4393
4394 /* init USB devices */
4395 if (machine_usb(current_machine)) {
4396 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4397 exit(1);
4398 }
4399
4400 /* init generic devices */
4401 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4402 qemu_opts_foreach(qemu_find_opts("device"),
4403 device_init_func, NULL, &error_fatal);
4404
4405 cpu_synchronize_all_post_init();
4406
4407 rom_reset_order_override();
4408
4409 /* Did we create any drives that we failed to create a device for? */
4410 drive_check_orphaned();
4411
4412 /* Don't warn about the default network setup that you get if
4413 * no command line -net or -netdev options are specified. There
4414 * are two cases that we would otherwise complain about:
4415 * (1) board doesn't support a NIC but the implicit "-net nic"
4416 * requested one
4417 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4418 * sets up a nic that isn't connected to anything.
4419 */
4420 if (!default_net && (!qtest_enabled() || has_defaults)) {
4421 net_check_clients();
4422 }
4423
4424 if (boot_once) {
4425 qemu_boot_set(boot_once, &error_fatal);
4426 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4427 }
4428
4429 /* init local displays */
4430 ds = init_displaystate();
4431 qemu_display_init(ds, &dpy);
4432
4433 /* must be after terminal init, SDL library changes signal handlers */
4434 os_setup_signal_handling();
4435
4436 /* init remote displays */
4437 #ifdef CONFIG_VNC
4438 qemu_opts_foreach(qemu_find_opts("vnc"),
4439 vnc_init_func, NULL, &error_fatal);
4440 #endif
4441
4442 if (using_spice) {
4443 qemu_spice.display_init();
4444 }
4445
4446 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4447 exit(1);
4448 }
4449
4450 qdev_machine_creation_done();
4451
4452 /* TODO: once all bus devices are qdevified, this should be done
4453 * when bus is created by qdev.c */
4454 /*
4455 * TODO: If we had a main 'reset container' that the whole system
4456 * lived in, we could reset that using the multi-phase reset
4457 * APIs. For the moment, we just reset the sysbus, which will cause
4458 * all devices hanging off it (and all their child buses, recursively)
4459 * to be reset. Note that this will *not* reset any Device objects
4460 * which are not attached to some part of the qbus tree!
4461 */
4462 qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
4463 qemu_run_machine_init_done_notifiers();
4464
4465 if (rom_check_and_register_reset() != 0) {
4466 error_report("rom check and register reset failed");
4467 exit(1);
4468 }
4469
4470 replay_start();
4471
4472 /* This checkpoint is required by replay to separate prior clock
4473 reading from the other reads, because timer polling functions query
4474 clock values from the log. */
4475 replay_checkpoint(CHECKPOINT_RESET);
4476 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4477 register_global_state();
4478 if (loadvm) {
4479 Error *local_err = NULL;
4480 if (load_snapshot(loadvm, &local_err) < 0) {
4481 error_report_err(local_err);
4482 autostart = 0;
4483 exit(1);
4484 }
4485 }
4486 if (replay_mode != REPLAY_MODE_NONE) {
4487 replay_vmstate_init();
4488 }
4489
4490 qdev_prop_check_globals();
4491 if (vmstate_dump_file) {
4492 /* dump and exit */
4493 dump_vmstate_json_to_file(vmstate_dump_file);
4494 exit(0);
4495 }
4496
4497 if (incoming) {
4498 Error *local_err = NULL;
4499 qemu_start_incoming_migration(incoming, &local_err);
4500 if (local_err) {
4501 error_reportf_err(local_err, "-incoming %s: ", incoming);
4502 exit(1);
4503 }
4504 } else if (autostart) {
4505 vm_start();
4506 }
4507
4508 accel_setup_post(current_machine);
4509 os_setup_post();
4510
4511 return;
4512 }
4513
4514 void qemu_cleanup(void)
4515 {
4516 gdbserver_cleanup();
4517
4518 /*
4519 * cleaning up the migration object cancels any existing migration
4520 * try to do this early so that it also stops using devices.
4521 */
4522 migration_shutdown();
4523
4524 /*
4525 * We must cancel all block jobs while the block layer is drained,
4526 * or cancelling will be affected by throttling and thus may block
4527 * for an extended period of time.
4528 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4529 * it in the drained section.
4530 * We do not need to end this section, because we do not want any
4531 * requests happening from here on anyway.
4532 */
4533 bdrv_drain_all_begin();
4534
4535 /* No more vcpu or device emulation activity beyond this point */
4536 vm_shutdown();
4537 replay_finish();
4538
4539 job_cancel_sync_all();
4540 bdrv_close_all();
4541
4542 res_free();
4543
4544 /* vhost-user must be cleaned up before chardevs. */
4545 tpm_cleanup();
4546 net_cleanup();
4547 audio_cleanup();
4548 monitor_cleanup();
4549 qemu_chr_cleanup();
4550 user_creatable_cleanup();
4551 /* TODO: unref root container, check all devices are ok */
4552 }
AR7 emulation for QEMU