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migration: Add support for modules
[qemu/kevin.git] / softmmu / vl.c
blob705ee6f841e4c06ed6fa77c3fa0eccd3d2490966
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/qdev-properties.h"
29 #include "qapi/error.h"
30 #include "qemu-version.h"
31 #include "qemu/cutils.h"
32 #include "qemu/help_option.h"
33 #include "qemu/uuid.h"
34 #include "sysemu/reset.h"
35 #include "sysemu/runstate.h"
36 #include "sysemu/seccomp.h"
37 #include "sysemu/tcg.h"
38
39 #include "qemu/error-report.h"
40 #include "qemu/sockets.h"
41 #include "sysemu/accel.h"
42 #include "hw/usb.h"
43 #include "hw/isa/isa.h"
44 #include "hw/scsi/scsi.h"
45 #include "hw/display/vga.h"
46 #include "sysemu/watchdog.h"
47 #include "hw/firmware/smbios.h"
48 #include "hw/acpi/acpi.h"
49 #include "hw/xen/xen.h"
50 #include "hw/loader.h"
51 #include "monitor/qdev.h"
52 #include "net/net.h"
53 #include "net/slirp.h"
54 #include "monitor/monitor.h"
55 #include "ui/console.h"
56 #include "ui/input.h"
57 #include "sysemu/sysemu.h"
58 #include "sysemu/numa.h"
59 #include "sysemu/hostmem.h"
60 #include "exec/gdbstub.h"
61 #include "qemu/timer.h"
62 #include "chardev/char.h"
63 #include "qemu/bitmap.h"
64 #include "qemu/log.h"
65 #include "sysemu/blockdev.h"
66 #include "hw/block/block.h"
67 #include "migration/misc.h"
68 #include "migration/snapshot.h"
69 #include "migration/global_state.h"
70 #include "sysemu/tpm.h"
71 #include "sysemu/dma.h"
72 #include "hw/audio/soundhw.h"
73 #include "audio/audio.h"
74 #include "sysemu/cpus.h"
75 #include "migration/colo.h"
76 #include "migration/postcopy-ram.h"
77 #include "sysemu/kvm.h"
78 #include "sysemu/hax.h"
79 #include "qapi/qobject-input-visitor.h"
80 #include "qemu/option.h"
81 #include "qemu/config-file.h"
82 #include "qemu-options.h"
83 #include "qemu/main-loop.h"
84 #ifdef CONFIG_VIRTFS
85 #include "fsdev/qemu-fsdev.h"
86 #endif
87 #include "sysemu/qtest.h"
88
89 #include "disas/disas.h"
90
91 #include "trace-root.h"
92 #include "trace/control.h"
93 #include "qemu/plugin.h"
94 #include "qemu/queue.h"
95 #include "sysemu/arch_init.h"
96
97 #include "ui/qemu-spice.h"
98 #include "qapi/string-input-visitor.h"
99 #include "qapi/opts-visitor.h"
100 #include "qapi/clone-visitor.h"
101 #include "qom/object_interfaces.h"
102 #include "hw/semihosting/semihost.h"
103 #include "crypto/init.h"
104 #include "sysemu/replay.h"
105 #include "qapi/qapi-events-run-state.h"
106 #include "qapi/qapi-visit-block-core.h"
107 #include "qapi/qapi-visit-ui.h"
108 #include "qapi/qapi-commands-block-core.h"
109 #include "qapi/qapi-commands-run-state.h"
110 #include "qapi/qapi-commands-ui.h"
111 #include "qapi/qmp/qerror.h"
112 #include "sysemu/iothread.h"
113 #include "qemu/guest-random.h"
114
115 #define MAX_VIRTIO_CONSOLES 1
116
117 static const char *data_dir[16];
118 static int data_dir_idx;
119 const char *bios_name = NULL;
120 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
121 int display_opengl;
122 const char* keyboard_layout = NULL;
123 ram_addr_t ram_size;
124 bool enable_mlock = false;
125 bool enable_cpu_pm = false;
126 int nb_nics;
127 NICInfo nd_table[MAX_NICS];
128 int autostart;
129 static enum {
130 RTC_BASE_UTC,
131 RTC_BASE_LOCALTIME,
132 RTC_BASE_DATETIME,
133 } rtc_base_type = RTC_BASE_UTC;
134 static time_t rtc_ref_start_datetime;
135 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
136 static int rtc_host_datetime_offset = -1; /* valid & used only with
137 RTC_BASE_DATETIME */
138 QEMUClockType rtc_clock;
139 int vga_interface_type = VGA_NONE;
140 static DisplayOptions dpy;
141 static int num_serial_hds;
142 static Chardev **serial_hds;
143 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
144 int win2k_install_hack = 0;
145 int singlestep = 0;
146 int acpi_enabled = 1;
147 int no_hpet = 0;
148 int fd_bootchk = 1;
149 static int no_reboot;
150 int no_shutdown = 0;
151 int graphic_rotate = 0;
152 const char *watchdog;
153 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
154 int nb_option_roms;
155 int old_param = 0;
156 const char *qemu_name;
157 int alt_grab = 0;
158 int ctrl_grab = 0;
159 unsigned int nb_prom_envs = 0;
160 const char *prom_envs[MAX_PROM_ENVS];
161 int boot_menu;
162 bool boot_strict;
163 uint8_t *boot_splash_filedata;
164 int only_migratable; /* turn it off unless user states otherwise */
165 bool wakeup_suspend_enabled;
166
167 int icount_align_option;
168
169 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
170 * little-endian "wire format" described in the SMBIOS 2.6 specification.
171 */
172 QemuUUID qemu_uuid;
173 bool qemu_uuid_set;
174
175 static NotifierList exit_notifiers =
176 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
177
178 static NotifierList machine_init_done_notifiers =
179 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
180
181 bool xen_allowed;
182 uint32_t xen_domid;
183 enum xen_mode xen_mode = XEN_EMULATE;
184 bool xen_domid_restrict;
185
186 static int has_defaults = 1;
187 static int default_serial = 1;
188 static int default_parallel = 1;
189 static int default_monitor = 1;
190 static int default_floppy = 1;
191 static int default_cdrom = 1;
192 static int default_sdcard = 1;
193 static int default_vga = 1;
194 static int default_net = 1;
195
196 static struct {
197 const char *driver;
198 int *flag;
199 } default_list[] = {
200 { .driver = "isa-serial", .flag = &default_serial },
201 { .driver = "isa-parallel", .flag = &default_parallel },
202 { .driver = "isa-fdc", .flag = &default_floppy },
203 { .driver = "floppy", .flag = &default_floppy },
204 { .driver = "ide-cd", .flag = &default_cdrom },
205 { .driver = "ide-hd", .flag = &default_cdrom },
206 { .driver = "ide-drive", .flag = &default_cdrom },
207 { .driver = "scsi-cd", .flag = &default_cdrom },
208 { .driver = "scsi-hd", .flag = &default_cdrom },
209 { .driver = "VGA", .flag = &default_vga },
210 { .driver = "isa-vga", .flag = &default_vga },
211 { .driver = "cirrus-vga", .flag = &default_vga },
212 { .driver = "isa-cirrus-vga", .flag = &default_vga },
213 { .driver = "vmware-svga", .flag = &default_vga },
214 { .driver = "qxl-vga", .flag = &default_vga },
215 { .driver = "virtio-vga", .flag = &default_vga },
216 { .driver = "ati-vga", .flag = &default_vga },
217 { .driver = "vhost-user-vga", .flag = &default_vga },
218 };
219
220 static QemuOptsList qemu_rtc_opts = {
221 .name = "rtc",
222 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
223 .merge_lists = true,
224 .desc = {
225 {
226 .name = "base",
227 .type = QEMU_OPT_STRING,
228 },{
229 .name = "clock",
230 .type = QEMU_OPT_STRING,
231 },{
232 .name = "driftfix",
233 .type = QEMU_OPT_STRING,
234 },
235 { /* end of list */ }
236 },
237 };
238
239 static QemuOptsList qemu_option_rom_opts = {
240 .name = "option-rom",
241 .implied_opt_name = "romfile",
242 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
243 .desc = {
244 {
245 .name = "bootindex",
246 .type = QEMU_OPT_NUMBER,
247 }, {
248 .name = "romfile",
249 .type = QEMU_OPT_STRING,
250 },
251 { /* end of list */ }
252 },
253 };
254
255 static QemuOptsList qemu_machine_opts = {
256 .name = "machine",
257 .implied_opt_name = "type",
258 .merge_lists = true,
259 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
260 .desc = {
261 /*
262 * no elements => accept any
263 * sanity checking will happen later
264 * when setting machine properties
265 */
266 { }
267 },
268 };
269
270 static QemuOptsList qemu_accel_opts = {
271 .name = "accel",
272 .implied_opt_name = "accel",
273 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
274 .desc = {
275 /*
276 * no elements => accept any
277 * sanity checking will happen later
278 * when setting accelerator properties
279 */
280 { }
281 },
282 };
283
284 static QemuOptsList qemu_boot_opts = {
285 .name = "boot-opts",
286 .implied_opt_name = "order",
287 .merge_lists = true,
288 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
289 .desc = {
290 {
291 .name = "order",
292 .type = QEMU_OPT_STRING,
293 }, {
294 .name = "once",
295 .type = QEMU_OPT_STRING,
296 }, {
297 .name = "menu",
298 .type = QEMU_OPT_BOOL,
299 }, {
300 .name = "splash",
301 .type = QEMU_OPT_STRING,
302 }, {
303 .name = "splash-time",
304 .type = QEMU_OPT_NUMBER,
305 }, {
306 .name = "reboot-timeout",
307 .type = QEMU_OPT_NUMBER,
308 }, {
309 .name = "strict",
310 .type = QEMU_OPT_BOOL,
311 },
312 { /*End of list */ }
313 },
314 };
315
316 static QemuOptsList qemu_add_fd_opts = {
317 .name = "add-fd",
318 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
319 .desc = {
320 {
321 .name = "fd",
322 .type = QEMU_OPT_NUMBER,
323 .help = "file descriptor of which a duplicate is added to fd set",
324 },{
325 .name = "set",
326 .type = QEMU_OPT_NUMBER,
327 .help = "ID of the fd set to add fd to",
328 },{
329 .name = "opaque",
330 .type = QEMU_OPT_STRING,
331 .help = "free-form string used to describe fd",
332 },
333 { /* end of list */ }
334 },
335 };
336
337 static QemuOptsList qemu_object_opts = {
338 .name = "object",
339 .implied_opt_name = "qom-type",
340 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
341 .desc = {
342 { }
343 },
344 };
345
346 static QemuOptsList qemu_tpmdev_opts = {
347 .name = "tpmdev",
348 .implied_opt_name = "type",
349 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
350 .desc = {
351 /* options are defined in the TPM backends */
352 { /* end of list */ }
353 },
354 };
355
356 static QemuOptsList qemu_realtime_opts = {
357 .name = "realtime",
358 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
359 .desc = {
360 {
361 .name = "mlock",
362 .type = QEMU_OPT_BOOL,
363 },
364 { /* end of list */ }
365 },
366 };
367
368 static QemuOptsList qemu_overcommit_opts = {
369 .name = "overcommit",
370 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
371 .desc = {
372 {
373 .name = "mem-lock",
374 .type = QEMU_OPT_BOOL,
375 },
376 {
377 .name = "cpu-pm",
378 .type = QEMU_OPT_BOOL,
379 },
380 { /* end of list */ }
381 },
382 };
383
384 static QemuOptsList qemu_msg_opts = {
385 .name = "msg",
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
387 .desc = {
388 {
389 .name = "timestamp",
390 .type = QEMU_OPT_BOOL,
391 },
392 { /* end of list */ }
393 },
394 };
395
396 static QemuOptsList qemu_name_opts = {
397 .name = "name",
398 .implied_opt_name = "guest",
399 .merge_lists = true,
400 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
401 .desc = {
402 {
403 .name = "guest",
404 .type = QEMU_OPT_STRING,
405 .help = "Sets the name of the guest.\n"
406 "This name will be displayed in the SDL window caption.\n"
407 "The name will also be used for the VNC server",
408 }, {
409 .name = "process",
410 .type = QEMU_OPT_STRING,
411 .help = "Sets the name of the QEMU process, as shown in top etc",
412 }, {
413 .name = "debug-threads",
414 .type = QEMU_OPT_BOOL,
415 .help = "When enabled, name the individual threads; defaults off.\n"
416 "NOTE: The thread names are for debugging and not a\n"
417 "stable API.",
418 },
419 { /* End of list */ }
420 },
421 };
422
423 static QemuOptsList qemu_mem_opts = {
424 .name = "memory",
425 .implied_opt_name = "size",
426 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
427 .merge_lists = true,
428 .desc = {
429 {
430 .name = "size",
431 .type = QEMU_OPT_SIZE,
432 },
433 {
434 .name = "slots",
435 .type = QEMU_OPT_NUMBER,
436 },
437 {
438 .name = "maxmem",
439 .type = QEMU_OPT_SIZE,
440 },
441 { /* end of list */ }
442 },
443 };
444
445 static QemuOptsList qemu_icount_opts = {
446 .name = "icount",
447 .implied_opt_name = "shift",
448 .merge_lists = true,
449 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
450 .desc = {
451 {
452 .name = "shift",
453 .type = QEMU_OPT_STRING,
454 }, {
455 .name = "align",
456 .type = QEMU_OPT_BOOL,
457 }, {
458 .name = "sleep",
459 .type = QEMU_OPT_BOOL,
460 }, {
461 .name = "rr",
462 .type = QEMU_OPT_STRING,
463 }, {
464 .name = "rrfile",
465 .type = QEMU_OPT_STRING,
466 }, {
467 .name = "rrsnapshot",
468 .type = QEMU_OPT_STRING,
469 },
470 { /* end of list */ }
471 },
472 };
473
474 static QemuOptsList qemu_fw_cfg_opts = {
475 .name = "fw_cfg",
476 .implied_opt_name = "name",
477 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
478 .desc = {
479 {
480 .name = "name",
481 .type = QEMU_OPT_STRING,
482 .help = "Sets the fw_cfg name of the blob to be inserted",
483 }, {
484 .name = "file",
485 .type = QEMU_OPT_STRING,
486 .help = "Sets the name of the file from which "
487 "the fw_cfg blob will be loaded",
488 }, {
489 .name = "string",
490 .type = QEMU_OPT_STRING,
491 .help = "Sets content of the blob to be inserted from a string",
492 },
493 { /* end of list */ }
494 },
495 };
496
497 /**
498 * Get machine options
499 *
500 * Returns: machine options (never null).
501 */
502 QemuOpts *qemu_get_machine_opts(void)
503 {
504 return qemu_find_opts_singleton("machine");
505 }
506
507 const char *qemu_get_vm_name(void)
508 {
509 return qemu_name;
510 }
511
512 static void res_free(void)
513 {
514 g_free(boot_splash_filedata);
515 boot_splash_filedata = NULL;
516 }
517
518 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
519 {
520 const char *driver = qemu_opt_get(opts, "driver");
521 int i;
522
523 if (!driver)
524 return 0;
525 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
526 if (strcmp(default_list[i].driver, driver) != 0)
527 continue;
528 *(default_list[i].flag) = 0;
529 }
530 return 0;
531 }
532
533 /***********************************************************/
534 /* QEMU state */
535
536 static RunState current_run_state = RUN_STATE_PRECONFIG;
537
538 /* We use RUN_STATE__MAX but any invalid value will do */
539 static RunState vmstop_requested = RUN_STATE__MAX;
540 static QemuMutex vmstop_lock;
541
542 typedef struct {
543 RunState from;
544 RunState to;
545 } RunStateTransition;
546
547 static const RunStateTransition runstate_transitions_def[] = {
548 /* from -> to */
549 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
550 /* Early switch to inmigrate state to allow -incoming CLI option work
551 * as it used to. TODO: delay actual switching to inmigrate state to
552 * the point after machine is built and remove this hack.
553 */
554 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
555
556 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
557 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
558 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
559
560 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
561 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
562 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
563 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
564 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
565 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
566 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
567 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
568 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
569 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
570 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
571 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
572
573 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
574 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
575 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
576
577 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
578 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
579 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
580
581 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
582 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
583 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
584 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
585 { RUN_STATE_PAUSED, RUN_STATE_COLO},
586
587 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
588 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
589 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
590
591 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
592 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
593 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
594
595 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
596 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
597 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
598 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
599 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
600
601 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
602 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
603
604 { RUN_STATE_COLO, RUN_STATE_RUNNING },
605
606 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
607 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
608 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
609 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
610 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
611 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
612 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
613 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
614 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
615 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
616 { RUN_STATE_RUNNING, RUN_STATE_COLO},
617
618 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
619
620 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
621 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
623
624 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
625 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
626 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
627 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
628 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
629 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
630
631 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
632 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
634 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
635
636 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
637 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
638 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
639
640 { RUN_STATE__MAX, RUN_STATE__MAX },
641 };
642
643 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
644
645 bool runstate_check(RunState state)
646 {
647 return current_run_state == state;
648 }
649
650 bool runstate_store(char *str, size_t size)
651 {
652 const char *state = RunState_str(current_run_state);
653 size_t len = strlen(state) + 1;
654
655 if (len > size) {
656 return false;
657 }
658 memcpy(str, state, len);
659 return true;
660 }
661
662 static void runstate_init(void)
663 {
664 const RunStateTransition *p;
665
666 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
667 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
668 runstate_valid_transitions[p->from][p->to] = true;
669 }
670
671 qemu_mutex_init(&vmstop_lock);
672 }
673
674 /* This function will abort() on invalid state transitions */
675 void runstate_set(RunState new_state)
676 {
677 assert(new_state < RUN_STATE__MAX);
678
679 trace_runstate_set(current_run_state, RunState_str(current_run_state),
680 new_state, RunState_str(new_state));
681
682 if (current_run_state == new_state) {
683 return;
684 }
685
686 if (!runstate_valid_transitions[current_run_state][new_state]) {
687 error_report("invalid runstate transition: '%s' -> '%s'",
688 RunState_str(current_run_state),
689 RunState_str(new_state));
690 abort();
691 }
692
693 current_run_state = new_state;
694 }
695
696 int runstate_is_running(void)
697 {
698 return runstate_check(RUN_STATE_RUNNING);
699 }
700
701 bool runstate_needs_reset(void)
702 {
703 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
704 runstate_check(RUN_STATE_SHUTDOWN);
705 }
706
707 StatusInfo *qmp_query_status(Error **errp)
708 {
709 StatusInfo *info = g_malloc0(sizeof(*info));
710
711 info->running = runstate_is_running();
712 info->singlestep = singlestep;
713 info->status = current_run_state;
714
715 return info;
716 }
717
718 bool qemu_vmstop_requested(RunState *r)
719 {
720 qemu_mutex_lock(&vmstop_lock);
721 *r = vmstop_requested;
722 vmstop_requested = RUN_STATE__MAX;
723 qemu_mutex_unlock(&vmstop_lock);
724 return *r < RUN_STATE__MAX;
725 }
726
727 void qemu_system_vmstop_request_prepare(void)
728 {
729 qemu_mutex_lock(&vmstop_lock);
730 }
731
732 void qemu_system_vmstop_request(RunState state)
733 {
734 vmstop_requested = state;
735 qemu_mutex_unlock(&vmstop_lock);
736 qemu_notify_event();
737 }
738
739 /***********************************************************/
740 /* RTC reference time/date access */
741 static time_t qemu_ref_timedate(QEMUClockType clock)
742 {
743 time_t value = qemu_clock_get_ms(clock) / 1000;
744 switch (clock) {
745 case QEMU_CLOCK_REALTIME:
746 value -= rtc_realtime_clock_offset;
747 /* fall through */
748 case QEMU_CLOCK_VIRTUAL:
749 value += rtc_ref_start_datetime;
750 break;
751 case QEMU_CLOCK_HOST:
752 if (rtc_base_type == RTC_BASE_DATETIME) {
753 value -= rtc_host_datetime_offset;
754 }
755 break;
756 default:
757 assert(0);
758 }
759 return value;
760 }
761
762 void qemu_get_timedate(struct tm *tm, int offset)
763 {
764 time_t ti = qemu_ref_timedate(rtc_clock);
765
766 ti += offset;
767
768 switch (rtc_base_type) {
769 case RTC_BASE_DATETIME:
770 case RTC_BASE_UTC:
771 gmtime_r(&ti, tm);
772 break;
773 case RTC_BASE_LOCALTIME:
774 localtime_r(&ti, tm);
775 break;
776 }
777 }
778
779 int qemu_timedate_diff(struct tm *tm)
780 {
781 time_t seconds;
782
783 switch (rtc_base_type) {
784 case RTC_BASE_DATETIME:
785 case RTC_BASE_UTC:
786 seconds = mktimegm(tm);
787 break;
788 case RTC_BASE_LOCALTIME:
789 {
790 struct tm tmp = *tm;
791 tmp.tm_isdst = -1; /* use timezone to figure it out */
792 seconds = mktime(&tmp);
793 break;
794 }
795 default:
796 abort();
797 }
798
799 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
800 }
801
802 static void configure_rtc_base_datetime(const char *startdate)
803 {
804 time_t rtc_start_datetime;
805 struct tm tm;
806
807 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
808 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
809 /* OK */
810 } else if (sscanf(startdate, "%d-%d-%d",
811 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
812 tm.tm_hour = 0;
813 tm.tm_min = 0;
814 tm.tm_sec = 0;
815 } else {
816 goto date_fail;
817 }
818 tm.tm_year -= 1900;
819 tm.tm_mon--;
820 rtc_start_datetime = mktimegm(&tm);
821 if (rtc_start_datetime == -1) {
822 date_fail:
823 error_report("invalid datetime format");
824 error_printf("valid formats: "
825 "'2006-06-17T16:01:21' or '2006-06-17'\n");
826 exit(1);
827 }
828 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
829 rtc_ref_start_datetime = rtc_start_datetime;
830 }
831
832 static void configure_rtc(QemuOpts *opts)
833 {
834 const char *value;
835
836 /* Set defaults */
837 rtc_clock = QEMU_CLOCK_HOST;
838 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
839 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
840
841 value = qemu_opt_get(opts, "base");
842 if (value) {
843 if (!strcmp(value, "utc")) {
844 rtc_base_type = RTC_BASE_UTC;
845 } else if (!strcmp(value, "localtime")) {
846 Error *blocker = NULL;
847 rtc_base_type = RTC_BASE_LOCALTIME;
848 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
849 "-rtc base=localtime");
850 replay_add_blocker(blocker);
851 } else {
852 rtc_base_type = RTC_BASE_DATETIME;
853 configure_rtc_base_datetime(value);
854 }
855 }
856 value = qemu_opt_get(opts, "clock");
857 if (value) {
858 if (!strcmp(value, "host")) {
859 rtc_clock = QEMU_CLOCK_HOST;
860 } else if (!strcmp(value, "rt")) {
861 rtc_clock = QEMU_CLOCK_REALTIME;
862 } else if (!strcmp(value, "vm")) {
863 rtc_clock = QEMU_CLOCK_VIRTUAL;
864 } else {
865 error_report("invalid option value '%s'", value);
866 exit(1);
867 }
868 }
869 value = qemu_opt_get(opts, "driftfix");
870 if (value) {
871 if (!strcmp(value, "slew")) {
872 object_register_sugar_prop("mc146818rtc",
873 "lost_tick_policy",
874 "slew");
875 } else if (!strcmp(value, "none")) {
876 /* discard is default */
877 } else {
878 error_report("invalid option value '%s'", value);
879 exit(1);
880 }
881 }
882 }
883
884 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
885 {
886 const char *proc_name;
887
888 if (qemu_opt_get(opts, "debug-threads")) {
889 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
890 }
891 qemu_name = qemu_opt_get(opts, "guest");
892
893 proc_name = qemu_opt_get(opts, "process");
894 if (proc_name) {
895 os_set_proc_name(proc_name);
896 }
897
898 return 0;
899 }
900
901 bool defaults_enabled(void)
902 {
903 return has_defaults;
904 }
905
906 #ifndef _WIN32
907 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
908 {
909 int fd, dupfd, flags;
910 int64_t fdset_id;
911 const char *fd_opaque = NULL;
912 AddfdInfo *fdinfo;
913
914 fd = qemu_opt_get_number(opts, "fd", -1);
915 fdset_id = qemu_opt_get_number(opts, "set", -1);
916 fd_opaque = qemu_opt_get(opts, "opaque");
917
918 if (fd < 0) {
919 error_setg(errp, "fd option is required and must be non-negative");
920 return -1;
921 }
922
923 if (fd <= STDERR_FILENO) {
924 error_setg(errp, "fd cannot be a standard I/O stream");
925 return -1;
926 }
927
928 /*
929 * All fds inherited across exec() necessarily have FD_CLOEXEC
930 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
931 */
932 flags = fcntl(fd, F_GETFD);
933 if (flags == -1 || (flags & FD_CLOEXEC)) {
934 error_setg(errp, "fd is not valid or already in use");
935 return -1;
936 }
937
938 if (fdset_id < 0) {
939 error_setg(errp, "set option is required and must be non-negative");
940 return -1;
941 }
942
943 #ifdef F_DUPFD_CLOEXEC
944 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
945 #else
946 dupfd = dup(fd);
947 if (dupfd != -1) {
948 qemu_set_cloexec(dupfd);
949 }
950 #endif
951 if (dupfd == -1) {
952 error_setg(errp, "error duplicating fd: %s", strerror(errno));
953 return -1;
954 }
955
956 /* add the duplicate fd, and optionally the opaque string, to the fd set */
957 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
958 &error_abort);
959 g_free(fdinfo);
960
961 return 0;
962 }
963
964 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
965 {
966 int fd;
967
968 fd = qemu_opt_get_number(opts, "fd", -1);
969 close(fd);
970
971 return 0;
972 }
973 #endif
974
975 /***********************************************************/
976 /* QEMU Block devices */
977
978 #define HD_OPTS "media=disk"
979 #define CDROM_OPTS "media=cdrom"
980 #define FD_OPTS ""
981 #define PFLASH_OPTS ""
982 #define MTD_OPTS ""
983 #define SD_OPTS ""
984
985 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
986 {
987 BlockInterfaceType *block_default_type = opaque;
988
989 return drive_new(opts, *block_default_type, errp) == NULL;
990 }
991
992 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
993 {
994 if (qemu_opt_get(opts, "snapshot") == NULL) {
995 qemu_opt_set(opts, "snapshot", "on", &error_abort);
996 }
997 return 0;
998 }
999
1000 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1001 int index, const char *optstr)
1002 {
1003 QemuOpts *opts;
1004 DriveInfo *dinfo;
1005
1006 if (!enable || drive_get_by_index(type, index)) {
1007 return;
1008 }
1009
1010 opts = drive_add(type, index, NULL, optstr);
1011 if (snapshot) {
1012 drive_enable_snapshot(NULL, opts, NULL);
1013 }
1014
1015 dinfo = drive_new(opts, type, &error_abort);
1016 dinfo->is_default = true;
1017
1018 }
1019
1020 typedef struct BlockdevOptionsQueueEntry {
1021 BlockdevOptions *bdo;
1022 Location loc;
1023 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1024 } BlockdevOptionsQueueEntry;
1025
1026 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1027
1028 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1029 MachineClass *machine_class, int snapshot)
1030 {
1031 /*
1032 * If the currently selected machine wishes to override the
1033 * units-per-bus property of its default HBA interface type, do so
1034 * now.
1035 */
1036 if (machine_class->units_per_default_bus) {
1037 override_max_devs(machine_class->block_default_type,
1038 machine_class->units_per_default_bus);
1039 }
1040
1041 /* open the virtual block devices */
1042 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1043 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1044
1045 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1046 loc_push_restore(&bdo->loc);
1047 qmp_blockdev_add(bdo->bdo, &error_fatal);
1048 loc_pop(&bdo->loc);
1049 qapi_free_BlockdevOptions(bdo->bdo);
1050 g_free(bdo);
1051 }
1052 if (snapshot) {
1053 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1054 NULL, NULL);
1055 }
1056 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1057 &machine_class->block_default_type, &error_fatal)) {
1058 /* We printed help */
1059 exit(0);
1060 }
1061
1062 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1063 CDROM_OPTS);
1064 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1065 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1066
1067 }
1068
1069 static QemuOptsList qemu_smp_opts = {
1070 .name = "smp-opts",
1071 .implied_opt_name = "cpus",
1072 .merge_lists = true,
1073 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1074 .desc = {
1075 {
1076 .name = "cpus",
1077 .type = QEMU_OPT_NUMBER,
1078 }, {
1079 .name = "sockets",
1080 .type = QEMU_OPT_NUMBER,
1081 }, {
1082 .name = "dies",
1083 .type = QEMU_OPT_NUMBER,
1084 }, {
1085 .name = "cores",
1086 .type = QEMU_OPT_NUMBER,
1087 }, {
1088 .name = "threads",
1089 .type = QEMU_OPT_NUMBER,
1090 }, {
1091 .name = "maxcpus",
1092 .type = QEMU_OPT_NUMBER,
1093 },
1094 { /*End of list */ }
1095 },
1096 };
1097
1098 static void realtime_init(void)
1099 {
1100 if (enable_mlock) {
1101 if (os_mlock() < 0) {
1102 error_report("locking memory failed");
1103 exit(1);
1104 }
1105 }
1106 }
1107
1108
1109 static void configure_msg(QemuOpts *opts)
1110 {
1111 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1112 }
1113
1114
1115 /***********************************************************/
1116 /* USB devices */
1117
1118 static int usb_device_add(const char *devname)
1119 {
1120 USBDevice *dev = NULL;
1121
1122 if (!machine_usb(current_machine)) {
1123 return -1;
1124 }
1125
1126 dev = usbdevice_create(devname);
1127 if (!dev)
1128 return -1;
1129
1130 return 0;
1131 }
1132
1133 static int usb_parse(const char *cmdline)
1134 {
1135 int r;
1136 r = usb_device_add(cmdline);
1137 if (r < 0) {
1138 error_report("could not add USB device '%s'", cmdline);
1139 }
1140 return r;
1141 }
1142
1143 /***********************************************************/
1144 /* machine registration */
1145
1146 MachineState *current_machine;
1147
1148 static MachineClass *find_machine(const char *name, GSList *machines)
1149 {
1150 GSList *el;
1151
1152 for (el = machines; el; el = el->next) {
1153 MachineClass *mc = el->data;
1154
1155 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1156 return mc;
1157 }
1158 }
1159
1160 return NULL;
1161 }
1162
1163 static MachineClass *find_default_machine(GSList *machines)
1164 {
1165 GSList *el;
1166
1167 for (el = machines; el; el = el->next) {
1168 MachineClass *mc = el->data;
1169
1170 if (mc->is_default) {
1171 return mc;
1172 }
1173 }
1174
1175 return NULL;
1176 }
1177
1178 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1179 {
1180 ObjectProperty *prop;
1181 ObjectPropertyIterator iter;
1182
1183 if (!qemu_opt_has_help_opt(opts)) {
1184 return 0;
1185 }
1186
1187 object_property_iter_init(&iter, OBJECT(machine));
1188 while ((prop = object_property_iter_next(&iter))) {
1189 if (!prop->set) {
1190 continue;
1191 }
1192
1193 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1194 prop->name, prop->type);
1195 if (prop->description) {
1196 printf(" (%s)\n", prop->description);
1197 } else {
1198 printf("\n");
1199 }
1200 }
1201
1202 return 1;
1203 }
1204
1205 struct VMChangeStateEntry {
1206 VMChangeStateHandler *cb;
1207 void *opaque;
1208 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1209 int priority;
1210 };
1211
1212 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1213
1214 /**
1215 * qemu_add_vm_change_state_handler_prio:
1216 * @cb: the callback to invoke
1217 * @opaque: user data passed to the callback
1218 * @priority: low priorities execute first when the vm runs and the reverse is
1219 * true when the vm stops
1220 *
1221 * Register a callback function that is invoked when the vm starts or stops
1222 * running.
1223 *
1224 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1225 */
1226 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1227 VMChangeStateHandler *cb, void *opaque, int priority)
1228 {
1229 VMChangeStateEntry *e;
1230 VMChangeStateEntry *other;
1231
1232 e = g_malloc0(sizeof(*e));
1233 e->cb = cb;
1234 e->opaque = opaque;
1235 e->priority = priority;
1236
1237 /* Keep list sorted in ascending priority order */
1238 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1239 if (priority < other->priority) {
1240 QTAILQ_INSERT_BEFORE(other, e, entries);
1241 return e;
1242 }
1243 }
1244
1245 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1246 return e;
1247 }
1248
1249 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1250 void *opaque)
1251 {
1252 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1253 }
1254
1255 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1256 {
1257 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1258 g_free(e);
1259 }
1260
1261 void vm_state_notify(int running, RunState state)
1262 {
1263 VMChangeStateEntry *e, *next;
1264
1265 trace_vm_state_notify(running, state, RunState_str(state));
1266
1267 if (running) {
1268 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1269 e->cb(e->opaque, running, state);
1270 }
1271 } else {
1272 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1273 e->cb(e->opaque, running, state);
1274 }
1275 }
1276 }
1277
1278 static ShutdownCause reset_requested;
1279 static ShutdownCause shutdown_requested;
1280 static int shutdown_signal;
1281 static pid_t shutdown_pid;
1282 static int powerdown_requested;
1283 static int debug_requested;
1284 static int suspend_requested;
1285 static bool preconfig_exit_requested = true;
1286 static WakeupReason wakeup_reason;
1287 static NotifierList powerdown_notifiers =
1288 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1289 static NotifierList suspend_notifiers =
1290 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1291 static NotifierList wakeup_notifiers =
1292 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1293 static NotifierList shutdown_notifiers =
1294 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1295 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1296
1297 ShutdownCause qemu_shutdown_requested_get(void)
1298 {
1299 return shutdown_requested;
1300 }
1301
1302 ShutdownCause qemu_reset_requested_get(void)
1303 {
1304 return reset_requested;
1305 }
1306
1307 static int qemu_shutdown_requested(void)
1308 {
1309 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1310 }
1311
1312 static void qemu_kill_report(void)
1313 {
1314 if (!qtest_driver() && shutdown_signal) {
1315 if (shutdown_pid == 0) {
1316 /* This happens for eg ^C at the terminal, so it's worth
1317 * avoiding printing an odd message in that case.
1318 */
1319 error_report("terminating on signal %d", shutdown_signal);
1320 } else {
1321 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1322
1323 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1324 shutdown_signal, shutdown_pid,
1325 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1326 g_free(shutdown_cmd);
1327 }
1328 shutdown_signal = 0;
1329 }
1330 }
1331
1332 static ShutdownCause qemu_reset_requested(void)
1333 {
1334 ShutdownCause r = reset_requested;
1335
1336 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1337 reset_requested = SHUTDOWN_CAUSE_NONE;
1338 return r;
1339 }
1340 return SHUTDOWN_CAUSE_NONE;
1341 }
1342
1343 static int qemu_suspend_requested(void)
1344 {
1345 int r = suspend_requested;
1346 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1347 suspend_requested = 0;
1348 return r;
1349 }
1350 return false;
1351 }
1352
1353 static WakeupReason qemu_wakeup_requested(void)
1354 {
1355 return wakeup_reason;
1356 }
1357
1358 static int qemu_powerdown_requested(void)
1359 {
1360 int r = powerdown_requested;
1361 powerdown_requested = 0;
1362 return r;
1363 }
1364
1365 static int qemu_debug_requested(void)
1366 {
1367 int r = debug_requested;
1368 debug_requested = 0;
1369 return r;
1370 }
1371
1372 void qemu_exit_preconfig_request(void)
1373 {
1374 preconfig_exit_requested = true;
1375 }
1376
1377 /*
1378 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1379 */
1380 void qemu_system_reset(ShutdownCause reason)
1381 {
1382 MachineClass *mc;
1383
1384 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1385
1386 cpu_synchronize_all_states();
1387
1388 if (mc && mc->reset) {
1389 mc->reset(current_machine);
1390 } else {
1391 qemu_devices_reset();
1392 }
1393 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1394 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1395 }
1396 cpu_synchronize_all_post_reset();
1397 }
1398
1399 /*
1400 * Wake the VM after suspend.
1401 */
1402 static void qemu_system_wakeup(void)
1403 {
1404 MachineClass *mc;
1405
1406 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1407
1408 if (mc && mc->wakeup) {
1409 mc->wakeup(current_machine);
1410 }
1411 }
1412
1413 void qemu_system_guest_panicked(GuestPanicInformation *info)
1414 {
1415 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1416
1417 if (current_cpu) {
1418 current_cpu->crash_occurred = true;
1419 }
1420 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1421 !!info, info);
1422 vm_stop(RUN_STATE_GUEST_PANICKED);
1423 if (!no_shutdown) {
1424 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1425 !!info, info);
1426 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1427 }
1428
1429 if (info) {
1430 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1431 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1432 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1433 info->u.hyper_v.arg1,
1434 info->u.hyper_v.arg2,
1435 info->u.hyper_v.arg3,
1436 info->u.hyper_v.arg4,
1437 info->u.hyper_v.arg5);
1438 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1439 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1440 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1441 info->u.s390.core,
1442 S390CrashReason_str(info->u.s390.reason),
1443 info->u.s390.psw_mask,
1444 info->u.s390.psw_addr);
1445 }
1446 qapi_free_GuestPanicInformation(info);
1447 }
1448 }
1449
1450 void qemu_system_guest_crashloaded(GuestPanicInformation *info)
1451 {
1452 qemu_log_mask(LOG_GUEST_ERROR, "Guest crash loaded");
1453
1454 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN,
1455 !!info, info);
1456
1457 if (info) {
1458 qapi_free_GuestPanicInformation(info);
1459 }
1460 }
1461
1462 void qemu_system_reset_request(ShutdownCause reason)
1463 {
1464 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1465 shutdown_requested = reason;
1466 } else {
1467 reset_requested = reason;
1468 }
1469 cpu_stop_current();
1470 qemu_notify_event();
1471 }
1472
1473 static void qemu_system_suspend(void)
1474 {
1475 pause_all_vcpus();
1476 notifier_list_notify(&suspend_notifiers, NULL);
1477 runstate_set(RUN_STATE_SUSPENDED);
1478 qapi_event_send_suspend();
1479 }
1480
1481 void qemu_system_suspend_request(void)
1482 {
1483 if (runstate_check(RUN_STATE_SUSPENDED)) {
1484 return;
1485 }
1486 suspend_requested = 1;
1487 cpu_stop_current();
1488 qemu_notify_event();
1489 }
1490
1491 void qemu_register_suspend_notifier(Notifier *notifier)
1492 {
1493 notifier_list_add(&suspend_notifiers, notifier);
1494 }
1495
1496 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1497 {
1498 trace_system_wakeup_request(reason);
1499
1500 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1501 error_setg(errp,
1502 "Unable to wake up: guest is not in suspended state");
1503 return;
1504 }
1505 if (!(wakeup_reason_mask & (1 << reason))) {
1506 return;
1507 }
1508 runstate_set(RUN_STATE_RUNNING);
1509 wakeup_reason = reason;
1510 qemu_notify_event();
1511 }
1512
1513 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1514 {
1515 if (enabled) {
1516 wakeup_reason_mask |= (1 << reason);
1517 } else {
1518 wakeup_reason_mask &= ~(1 << reason);
1519 }
1520 }
1521
1522 void qemu_register_wakeup_notifier(Notifier *notifier)
1523 {
1524 notifier_list_add(&wakeup_notifiers, notifier);
1525 }
1526
1527 void qemu_register_wakeup_support(void)
1528 {
1529 wakeup_suspend_enabled = true;
1530 }
1531
1532 bool qemu_wakeup_suspend_enabled(void)
1533 {
1534 return wakeup_suspend_enabled;
1535 }
1536
1537 void qemu_system_killed(int signal, pid_t pid)
1538 {
1539 shutdown_signal = signal;
1540 shutdown_pid = pid;
1541 no_shutdown = 0;
1542
1543 /* Cannot call qemu_system_shutdown_request directly because
1544 * we are in a signal handler.
1545 */
1546 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1547 qemu_notify_event();
1548 }
1549
1550 void qemu_system_shutdown_request(ShutdownCause reason)
1551 {
1552 trace_qemu_system_shutdown_request(reason);
1553 replay_shutdown_request(reason);
1554 shutdown_requested = reason;
1555 qemu_notify_event();
1556 }
1557
1558 static void qemu_system_powerdown(void)
1559 {
1560 qapi_event_send_powerdown();
1561 notifier_list_notify(&powerdown_notifiers, NULL);
1562 }
1563
1564 static void qemu_system_shutdown(ShutdownCause cause)
1565 {
1566 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1567 notifier_list_notify(&shutdown_notifiers, &cause);
1568 }
1569
1570 void qemu_system_powerdown_request(void)
1571 {
1572 trace_qemu_system_powerdown_request();
1573 powerdown_requested = 1;
1574 qemu_notify_event();
1575 }
1576
1577 void qemu_register_powerdown_notifier(Notifier *notifier)
1578 {
1579 notifier_list_add(&powerdown_notifiers, notifier);
1580 }
1581
1582 void qemu_register_shutdown_notifier(Notifier *notifier)
1583 {
1584 notifier_list_add(&shutdown_notifiers, notifier);
1585 }
1586
1587 void qemu_system_debug_request(void)
1588 {
1589 debug_requested = 1;
1590 qemu_notify_event();
1591 }
1592
1593 static bool main_loop_should_exit(void)
1594 {
1595 RunState r;
1596 ShutdownCause request;
1597
1598 if (preconfig_exit_requested) {
1599 if (runstate_check(RUN_STATE_PRECONFIG)) {
1600 runstate_set(RUN_STATE_PRELAUNCH);
1601 }
1602 preconfig_exit_requested = false;
1603 return true;
1604 }
1605 if (qemu_debug_requested()) {
1606 vm_stop(RUN_STATE_DEBUG);
1607 }
1608 if (qemu_suspend_requested()) {
1609 qemu_system_suspend();
1610 }
1611 request = qemu_shutdown_requested();
1612 if (request) {
1613 qemu_kill_report();
1614 qemu_system_shutdown(request);
1615 if (no_shutdown) {
1616 vm_stop(RUN_STATE_SHUTDOWN);
1617 } else {
1618 return true;
1619 }
1620 }
1621 request = qemu_reset_requested();
1622 if (request) {
1623 pause_all_vcpus();
1624 qemu_system_reset(request);
1625 resume_all_vcpus();
1626 /*
1627 * runstate can change in pause_all_vcpus()
1628 * as iothread mutex is unlocked
1629 */
1630 if (!runstate_check(RUN_STATE_RUNNING) &&
1631 !runstate_check(RUN_STATE_INMIGRATE) &&
1632 !runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1633 runstate_set(RUN_STATE_PRELAUNCH);
1634 }
1635 }
1636 if (qemu_wakeup_requested()) {
1637 pause_all_vcpus();
1638 qemu_system_wakeup();
1639 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1640 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1641 resume_all_vcpus();
1642 qapi_event_send_wakeup();
1643 }
1644 if (qemu_powerdown_requested()) {
1645 qemu_system_powerdown();
1646 }
1647 if (qemu_vmstop_requested(&r)) {
1648 vm_stop(r);
1649 }
1650 return false;
1651 }
1652
1653 void qemu_main_loop(void)
1654 {
1655 #ifdef CONFIG_PROFILER
1656 int64_t ti;
1657 #endif
1658 while (!main_loop_should_exit()) {
1659 #ifdef CONFIG_PROFILER
1660 ti = profile_getclock();
1661 #endif
1662 main_loop_wait(false);
1663 #ifdef CONFIG_PROFILER
1664 dev_time += profile_getclock() - ti;
1665 #endif
1666 }
1667 }
1668
1669 static void version(void)
1670 {
1671 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1672 QEMU_COPYRIGHT "\n");
1673 }
1674
1675 static void help(int exitcode)
1676 {
1677 version();
1678 printf("usage: %s [options] [disk_image]\n\n"
1679 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1680 error_get_progname());
1681
1682 #define QEMU_OPTIONS_GENERATE_HELP
1683 #include "qemu-options-wrapper.h"
1684
1685 printf("\nDuring emulation, the following keys are useful:\n"
1686 "ctrl-alt-f toggle full screen\n"
1687 "ctrl-alt-n switch to virtual console 'n'\n"
1688 "ctrl-alt toggle mouse and keyboard grab\n"
1689 "\n"
1690 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1691 "\n"
1692 QEMU_HELP_BOTTOM "\n");
1693
1694 exit(exitcode);
1695 }
1696
1697 #define HAS_ARG 0x0001
1698
1699 typedef struct QEMUOption {
1700 const char *name;
1701 int flags;
1702 int index;
1703 uint32_t arch_mask;
1704 } QEMUOption;
1705
1706 static const QEMUOption qemu_options[] = {
1707 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1708 #define QEMU_OPTIONS_GENERATE_OPTIONS
1709 #include "qemu-options-wrapper.h"
1710 { NULL },
1711 };
1712
1713 typedef struct VGAInterfaceInfo {
1714 const char *opt_name; /* option name */
1715 const char *name; /* human-readable name */
1716 /* Class names indicating that support is available.
1717 * If no class is specified, the interface is always available */
1718 const char *class_names[2];
1719 } VGAInterfaceInfo;
1720
1721 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1722 [VGA_NONE] = {
1723 .opt_name = "none",
1724 .name = "no graphic card",
1725 },
1726 [VGA_STD] = {
1727 .opt_name = "std",
1728 .name = "standard VGA",
1729 .class_names = { "VGA", "isa-vga" },
1730 },
1731 [VGA_CIRRUS] = {
1732 .opt_name = "cirrus",
1733 .name = "Cirrus VGA",
1734 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1735 },
1736 [VGA_VMWARE] = {
1737 .opt_name = "vmware",
1738 .name = "VMWare SVGA",
1739 .class_names = { "vmware-svga" },
1740 },
1741 [VGA_VIRTIO] = {
1742 .opt_name = "virtio",
1743 .name = "Virtio VGA",
1744 .class_names = { "virtio-vga" },
1745 },
1746 [VGA_QXL] = {
1747 .opt_name = "qxl",
1748 .name = "QXL VGA",
1749 .class_names = { "qxl-vga" },
1750 },
1751 [VGA_TCX] = {
1752 .opt_name = "tcx",
1753 .name = "TCX framebuffer",
1754 .class_names = { "SUNW,tcx" },
1755 },
1756 [VGA_CG3] = {
1757 .opt_name = "cg3",
1758 .name = "CG3 framebuffer",
1759 .class_names = { "cgthree" },
1760 },
1761 [VGA_XENFB] = {
1762 .opt_name = "xenfb",
1763 .name = "Xen paravirtualized framebuffer",
1764 },
1765 };
1766
1767 static bool vga_interface_available(VGAInterfaceType t)
1768 {
1769 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1770
1771 assert(t < VGA_TYPE_MAX);
1772 return !ti->class_names[0] ||
1773 object_class_by_name(ti->class_names[0]) ||
1774 object_class_by_name(ti->class_names[1]);
1775 }
1776
1777 static const char *
1778 get_default_vga_model(const MachineClass *machine_class)
1779 {
1780 if (machine_class->default_display) {
1781 return machine_class->default_display;
1782 } else if (vga_interface_available(VGA_CIRRUS)) {
1783 return "cirrus";
1784 } else if (vga_interface_available(VGA_STD)) {
1785 return "std";
1786 }
1787
1788 return NULL;
1789 }
1790
1791 static void select_vgahw(const MachineClass *machine_class, const char *p)
1792 {
1793 const char *opts;
1794 int t;
1795
1796 if (g_str_equal(p, "help")) {
1797 const char *def = get_default_vga_model(machine_class);
1798
1799 for (t = 0; t < VGA_TYPE_MAX; t++) {
1800 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1801
1802 if (vga_interface_available(t) && ti->opt_name) {
1803 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1804 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1805 }
1806 }
1807 exit(0);
1808 }
1809
1810 assert(vga_interface_type == VGA_NONE);
1811 for (t = 0; t < VGA_TYPE_MAX; t++) {
1812 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1813 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1814 if (!vga_interface_available(t)) {
1815 error_report("%s not available", ti->name);
1816 exit(1);
1817 }
1818 vga_interface_type = t;
1819 break;
1820 }
1821 }
1822 if (t == VGA_TYPE_MAX) {
1823 invalid_vga:
1824 error_report("unknown vga type: %s", p);
1825 exit(1);
1826 }
1827 while (*opts) {
1828 const char *nextopt;
1829
1830 if (strstart(opts, ",retrace=", &nextopt)) {
1831 opts = nextopt;
1832 if (strstart(opts, "dumb", &nextopt))
1833 vga_retrace_method = VGA_RETRACE_DUMB;
1834 else if (strstart(opts, "precise", &nextopt))
1835 vga_retrace_method = VGA_RETRACE_PRECISE;
1836 else goto invalid_vga;
1837 } else goto invalid_vga;
1838 opts = nextopt;
1839 }
1840 }
1841
1842 static void parse_display_qapi(const char *optarg)
1843 {
1844 DisplayOptions *opts;
1845 Visitor *v;
1846
1847 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1848
1849 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1850 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1851
1852 qapi_free_DisplayOptions(opts);
1853 visit_free(v);
1854 }
1855
1856 DisplayOptions *qmp_query_display_options(Error **errp)
1857 {
1858 return QAPI_CLONE(DisplayOptions, &dpy);
1859 }
1860
1861 static void parse_display(const char *p)
1862 {
1863 const char *opts;
1864
1865 if (is_help_option(p)) {
1866 qemu_display_help();
1867 exit(0);
1868 }
1869
1870 if (strstart(p, "sdl", &opts)) {
1871 /*
1872 * sdl DisplayType needs hand-crafted parser instead of
1873 * parse_display_qapi() due to some options not in
1874 * DisplayOptions, specifically:
1875 * - frame
1876 * Already deprecated.
1877 * - ctrl_grab + alt_grab
1878 * Not clear yet what happens to them long-term. Should
1879 * replaced by something better or deprecated and dropped.
1880 */
1881 dpy.type = DISPLAY_TYPE_SDL;
1882 while (*opts) {
1883 const char *nextopt;
1884
1885 if (strstart(opts, ",alt_grab=", &nextopt)) {
1886 opts = nextopt;
1887 if (strstart(opts, "on", &nextopt)) {
1888 alt_grab = 1;
1889 } else if (strstart(opts, "off", &nextopt)) {
1890 alt_grab = 0;
1891 } else {
1892 goto invalid_sdl_args;
1893 }
1894 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1895 opts = nextopt;
1896 if (strstart(opts, "on", &nextopt)) {
1897 ctrl_grab = 1;
1898 } else if (strstart(opts, "off", &nextopt)) {
1899 ctrl_grab = 0;
1900 } else {
1901 goto invalid_sdl_args;
1902 }
1903 } else if (strstart(opts, ",window_close=", &nextopt)) {
1904 opts = nextopt;
1905 dpy.has_window_close = true;
1906 if (strstart(opts, "on", &nextopt)) {
1907 dpy.window_close = true;
1908 } else if (strstart(opts, "off", &nextopt)) {
1909 dpy.window_close = false;
1910 } else {
1911 goto invalid_sdl_args;
1912 }
1913 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1914 opts = nextopt;
1915 dpy.has_show_cursor = true;
1916 if (strstart(opts, "on", &nextopt)) {
1917 dpy.show_cursor = true;
1918 } else if (strstart(opts, "off", &nextopt)) {
1919 dpy.show_cursor = false;
1920 } else {
1921 goto invalid_sdl_args;
1922 }
1923 } else if (strstart(opts, ",gl=", &nextopt)) {
1924 opts = nextopt;
1925 dpy.has_gl = true;
1926 if (strstart(opts, "on", &nextopt)) {
1927 dpy.gl = DISPLAYGL_MODE_ON;
1928 } else if (strstart(opts, "core", &nextopt)) {
1929 dpy.gl = DISPLAYGL_MODE_CORE;
1930 } else if (strstart(opts, "es", &nextopt)) {
1931 dpy.gl = DISPLAYGL_MODE_ES;
1932 } else if (strstart(opts, "off", &nextopt)) {
1933 dpy.gl = DISPLAYGL_MODE_OFF;
1934 } else {
1935 goto invalid_sdl_args;
1936 }
1937 } else {
1938 invalid_sdl_args:
1939 error_report("invalid SDL option string");
1940 exit(1);
1941 }
1942 opts = nextopt;
1943 }
1944 } else if (strstart(p, "vnc", &opts)) {
1945 /*
1946 * vnc isn't a (local) DisplayType but a protocol for remote
1947 * display access.
1948 */
1949 if (*opts == '=') {
1950 vnc_parse(opts + 1, &error_fatal);
1951 } else {
1952 error_report("VNC requires a display argument vnc=<display>");
1953 exit(1);
1954 }
1955 } else {
1956 parse_display_qapi(p);
1957 }
1958 }
1959
1960 char *qemu_find_file(int type, const char *name)
1961 {
1962 int i;
1963 const char *subdir;
1964 char *buf;
1965
1966 /* Try the name as a straight path first */
1967 if (access(name, R_OK) == 0) {
1968 trace_load_file(name, name);
1969 return g_strdup(name);
1970 }
1971
1972 switch (type) {
1973 case QEMU_FILE_TYPE_BIOS:
1974 subdir = "";
1975 break;
1976 case QEMU_FILE_TYPE_KEYMAP:
1977 subdir = "keymaps/";
1978 break;
1979 default:
1980 abort();
1981 }
1982
1983 for (i = 0; i < data_dir_idx; i++) {
1984 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
1985 if (access(buf, R_OK) == 0) {
1986 trace_load_file(name, buf);
1987 return buf;
1988 }
1989 g_free(buf);
1990 }
1991 return NULL;
1992 }
1993
1994 static void qemu_add_data_dir(const char *path)
1995 {
1996 int i;
1997
1998 if (path == NULL) {
1999 return;
2000 }
2001 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2002 return;
2003 }
2004 for (i = 0; i < data_dir_idx; i++) {
2005 if (strcmp(data_dir[i], path) == 0) {
2006 return; /* duplicate */
2007 }
2008 }
2009 data_dir[data_dir_idx++] = g_strdup(path);
2010 }
2011
2012 static inline bool nonempty_str(const char *str)
2013 {
2014 return str && *str;
2015 }
2016
2017 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2018 {
2019 gchar *buf;
2020 size_t size;
2021 const char *name, *file, *str;
2022 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2023
2024 if (fw_cfg == NULL) {
2025 error_setg(errp, "fw_cfg device not available");
2026 return -1;
2027 }
2028 name = qemu_opt_get(opts, "name");
2029 file = qemu_opt_get(opts, "file");
2030 str = qemu_opt_get(opts, "string");
2031
2032 /* we need name and either a file or the content string */
2033 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2034 error_setg(errp, "invalid argument(s)");
2035 return -1;
2036 }
2037 if (nonempty_str(file) && nonempty_str(str)) {
2038 error_setg(errp, "file and string are mutually exclusive");
2039 return -1;
2040 }
2041 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2042 error_setg(errp, "name too long (max. %d char)",
2043 FW_CFG_MAX_FILE_PATH - 1);
2044 return -1;
2045 }
2046 if (strncmp(name, "opt/", 4) != 0) {
2047 warn_report("externally provided fw_cfg item names "
2048 "should be prefixed with \"opt/\"");
2049 }
2050 if (nonempty_str(str)) {
2051 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2052 buf = g_memdup(str, size);
2053 } else {
2054 GError *err = NULL;
2055 if (!g_file_get_contents(file, &buf, &size, &err)) {
2056 error_setg(errp, "can't load %s: %s", file, err->message);
2057 g_error_free(err);
2058 return -1;
2059 }
2060 }
2061 /* For legacy, keep user files in a specific global order. */
2062 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2063 fw_cfg_add_file(fw_cfg, name, buf, size);
2064 fw_cfg_reset_order_override(fw_cfg);
2065 return 0;
2066 }
2067
2068 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2069 {
2070 return qdev_device_help(opts);
2071 }
2072
2073 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2074 {
2075 DeviceState *dev;
2076
2077 dev = qdev_device_add(opts, errp);
2078 if (!dev && *errp) {
2079 error_report_err(*errp);
2080 return -1;
2081 } else if (dev) {
2082 object_unref(OBJECT(dev));
2083 }
2084 return 0;
2085 }
2086
2087 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2088 {
2089 Error *local_err = NULL;
2090
2091 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2092 if (local_err) {
2093 error_propagate(errp, local_err);
2094 return -1;
2095 }
2096 exit(0);
2097 }
2098 return 0;
2099 }
2100
2101 #ifdef CONFIG_VIRTFS
2102 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2103 {
2104 return qemu_fsdev_add(opts, errp);
2105 }
2106 #endif
2107
2108 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2109 {
2110 return monitor_init_opts(opts, errp);
2111 }
2112
2113 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2114 {
2115 static int monitor_device_index = 0;
2116 QemuOpts *opts;
2117 const char *p;
2118 char label[32];
2119
2120 if (strstart(optarg, "chardev:", &p)) {
2121 snprintf(label, sizeof(label), "%s", p);
2122 } else {
2123 snprintf(label, sizeof(label), "compat_monitor%d",
2124 monitor_device_index);
2125 opts = qemu_chr_parse_compat(label, optarg, true);
2126 if (!opts) {
2127 error_report("parse error: %s", optarg);
2128 exit(1);
2129 }
2130 }
2131
2132 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2133 qemu_opt_set(opts, "mode", mode, &error_abort);
2134 qemu_opt_set(opts, "chardev", label, &error_abort);
2135 if (!strcmp(mode, "control")) {
2136 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2137 } else {
2138 assert(pretty == false);
2139 }
2140 monitor_device_index++;
2141 }
2142
2143 struct device_config {
2144 enum {
2145 DEV_USB, /* -usbdevice */
2146 DEV_SERIAL, /* -serial */
2147 DEV_PARALLEL, /* -parallel */
2148 DEV_DEBUGCON, /* -debugcon */
2149 DEV_GDB, /* -gdb, -s */
2150 DEV_SCLP, /* s390 sclp */
2151 } type;
2152 const char *cmdline;
2153 Location loc;
2154 QTAILQ_ENTRY(device_config) next;
2155 };
2156
2157 static QTAILQ_HEAD(, device_config) device_configs =
2158 QTAILQ_HEAD_INITIALIZER(device_configs);
2159
2160 static void add_device_config(int type, const char *cmdline)
2161 {
2162 struct device_config *conf;
2163
2164 conf = g_malloc0(sizeof(*conf));
2165 conf->type = type;
2166 conf->cmdline = cmdline;
2167 loc_save(&conf->loc);
2168 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2169 }
2170
2171 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2172 {
2173 struct device_config *conf;
2174 int rc;
2175
2176 QTAILQ_FOREACH(conf, &device_configs, next) {
2177 if (conf->type != type)
2178 continue;
2179 loc_push_restore(&conf->loc);
2180 rc = func(conf->cmdline);
2181 loc_pop(&conf->loc);
2182 if (rc) {
2183 return rc;
2184 }
2185 }
2186 return 0;
2187 }
2188
2189 static int serial_parse(const char *devname)
2190 {
2191 int index = num_serial_hds;
2192 char label[32];
2193
2194 if (strcmp(devname, "none") == 0)
2195 return 0;
2196 snprintf(label, sizeof(label), "serial%d", index);
2197 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2198
2199 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2200 if (!serial_hds[index]) {
2201 error_report("could not connect serial device"
2202 " to character backend '%s'", devname);
2203 return -1;
2204 }
2205 num_serial_hds++;
2206 return 0;
2207 }
2208
2209 Chardev *serial_hd(int i)
2210 {
2211 assert(i >= 0);
2212 if (i < num_serial_hds) {
2213 return serial_hds[i];
2214 }
2215 return NULL;
2216 }
2217
2218 int serial_max_hds(void)
2219 {
2220 return num_serial_hds;
2221 }
2222
2223 static int parallel_parse(const char *devname)
2224 {
2225 static int index = 0;
2226 char label[32];
2227
2228 if (strcmp(devname, "none") == 0)
2229 return 0;
2230 if (index == MAX_PARALLEL_PORTS) {
2231 error_report("too many parallel ports");
2232 exit(1);
2233 }
2234 snprintf(label, sizeof(label), "parallel%d", index);
2235 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2236 if (!parallel_hds[index]) {
2237 error_report("could not connect parallel device"
2238 " to character backend '%s'", devname);
2239 return -1;
2240 }
2241 index++;
2242 return 0;
2243 }
2244
2245 static int debugcon_parse(const char *devname)
2246 {
2247 QemuOpts *opts;
2248
2249 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2250 error_report("invalid character backend '%s'", devname);
2251 exit(1);
2252 }
2253 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2254 if (!opts) {
2255 error_report("already have a debugcon device");
2256 exit(1);
2257 }
2258 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2259 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2260 return 0;
2261 }
2262
2263 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2264 {
2265 const MachineClass *mc1 = a, *mc2 = b;
2266 int res;
2267
2268 if (mc1->family == NULL) {
2269 if (mc2->family == NULL) {
2270 /* Compare standalone machine types against each other; they sort
2271 * in increasing order.
2272 */
2273 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2274 object_class_get_name(OBJECT_CLASS(mc2)));
2275 }
2276
2277 /* Standalone machine types sort after families. */
2278 return 1;
2279 }
2280
2281 if (mc2->family == NULL) {
2282 /* Families sort before standalone machine types. */
2283 return -1;
2284 }
2285
2286 /* Families sort between each other alphabetically increasingly. */
2287 res = strcmp(mc1->family, mc2->family);
2288 if (res != 0) {
2289 return res;
2290 }
2291
2292 /* Within the same family, machine types sort in decreasing order. */
2293 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2294 object_class_get_name(OBJECT_CLASS(mc1)));
2295 }
2296
2297 static MachineClass *machine_parse(const char *name, GSList *machines)
2298 {
2299 MachineClass *mc;
2300 GSList *el;
2301
2302 if (is_help_option(name)) {
2303 printf("Supported machines are:\n");
2304 machines = g_slist_sort(machines, machine_class_cmp);
2305 for (el = machines; el; el = el->next) {
2306 MachineClass *mc = el->data;
2307 if (mc->alias) {
2308 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2309 }
2310 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2311 mc->is_default ? " (default)" : "",
2312 mc->deprecation_reason ? " (deprecated)" : "");
2313 }
2314 exit(0);
2315 }
2316
2317 mc = find_machine(name, machines);
2318 if (!mc) {
2319 error_report("unsupported machine type");
2320 error_printf("Use -machine help to list supported machines\n");
2321 exit(1);
2322 }
2323 return mc;
2324 }
2325
2326 void qemu_add_exit_notifier(Notifier *notify)
2327 {
2328 notifier_list_add(&exit_notifiers, notify);
2329 }
2330
2331 void qemu_remove_exit_notifier(Notifier *notify)
2332 {
2333 notifier_remove(notify);
2334 }
2335
2336 static void qemu_run_exit_notifiers(void)
2337 {
2338 notifier_list_notify(&exit_notifiers, NULL);
2339 }
2340
2341 static const char *pid_file;
2342 static Notifier qemu_unlink_pidfile_notifier;
2343
2344 static void qemu_unlink_pidfile(Notifier *n, void *data)
2345 {
2346 if (pid_file) {
2347 unlink(pid_file);
2348 }
2349 }
2350
2351 bool machine_init_done;
2352
2353 void qemu_add_machine_init_done_notifier(Notifier *notify)
2354 {
2355 notifier_list_add(&machine_init_done_notifiers, notify);
2356 if (machine_init_done) {
2357 notify->notify(notify, NULL);
2358 }
2359 }
2360
2361 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2362 {
2363 notifier_remove(notify);
2364 }
2365
2366 static void qemu_run_machine_init_done_notifiers(void)
2367 {
2368 machine_init_done = true;
2369 notifier_list_notify(&machine_init_done_notifiers, NULL);
2370 }
2371
2372 static const QEMUOption *lookup_opt(int argc, char **argv,
2373 const char **poptarg, int *poptind)
2374 {
2375 const QEMUOption *popt;
2376 int optind = *poptind;
2377 char *r = argv[optind];
2378 const char *optarg;
2379
2380 loc_set_cmdline(argv, optind, 1);
2381 optind++;
2382 /* Treat --foo the same as -foo. */
2383 if (r[1] == '-')
2384 r++;
2385 popt = qemu_options;
2386 for(;;) {
2387 if (!popt->name) {
2388 error_report("invalid option");
2389 exit(1);
2390 }
2391 if (!strcmp(popt->name, r + 1))
2392 break;
2393 popt++;
2394 }
2395 if (popt->flags & HAS_ARG) {
2396 if (optind >= argc) {
2397 error_report("requires an argument");
2398 exit(1);
2399 }
2400 optarg = argv[optind++];
2401 loc_set_cmdline(argv, optind - 2, 2);
2402 } else {
2403 optarg = NULL;
2404 }
2405
2406 *poptarg = optarg;
2407 *poptind = optind;
2408
2409 return popt;
2410 }
2411
2412 static MachineClass *select_machine(void)
2413 {
2414 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2415 MachineClass *machine_class = find_default_machine(machines);
2416 const char *optarg;
2417 QemuOpts *opts;
2418 Location loc;
2419
2420 loc_push_none(&loc);
2421
2422 opts = qemu_get_machine_opts();
2423 qemu_opts_loc_restore(opts);
2424
2425 optarg = qemu_opt_get(opts, "type");
2426 if (optarg) {
2427 machine_class = machine_parse(optarg, machines);
2428 }
2429
2430 if (!machine_class) {
2431 error_report("No machine specified, and there is no default");
2432 error_printf("Use -machine help to list supported machines\n");
2433 exit(1);
2434 }
2435
2436 loc_pop(&loc);
2437 g_slist_free(machines);
2438 return machine_class;
2439 }
2440
2441 static int object_parse_property_opt(Object *obj,
2442 const char *name, const char *value,
2443 const char *skip, Error **errp)
2444 {
2445 Error *local_err = NULL;
2446
2447 if (g_str_equal(name, skip)) {
2448 return 0;
2449 }
2450
2451 object_property_parse(obj, value, name, &local_err);
2452
2453 if (local_err) {
2454 error_propagate(errp, local_err);
2455 return -1;
2456 }
2457
2458 return 0;
2459 }
2460
2461 static int machine_set_property(void *opaque,
2462 const char *name, const char *value,
2463 Error **errp)
2464 {
2465 g_autofree char *qom_name = g_strdup(name);
2466 char *p;
2467
2468 for (p = qom_name; *p; p++) {
2469 if (*p == '_') {
2470 *p = '-';
2471 }
2472 }
2473
2474 /* Legacy options do not correspond to MachineState properties. */
2475 if (g_str_equal(qom_name, "accel")) {
2476 return 0;
2477 }
2478 if (g_str_equal(qom_name, "igd-passthru")) {
2479 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2480 return 0;
2481 }
2482 if (g_str_equal(qom_name, "kvm-shadow-mem") ||
2483 g_str_equal(qom_name, "kernel-irqchip")) {
2484 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2485 return 0;
2486 }
2487
2488 return object_parse_property_opt(opaque, name, value, "type", errp);
2489 }
2490
2491 /*
2492 * Initial object creation happens before all other
2493 * QEMU data types are created. The majority of objects
2494 * can be created at this point. The rng-egd object
2495 * cannot be created here, as it depends on the chardev
2496 * already existing.
2497 */
2498 static bool object_create_initial(const char *type, QemuOpts *opts)
2499 {
2500 if (user_creatable_print_help(type, opts)) {
2501 exit(0);
2502 }
2503
2504 /*
2505 * Objects should not be made "delayed" without a reason. If you
2506 * add one, state the reason in a comment!
2507 */
2508
2509 /* Reason: rng-egd property "chardev" */
2510 if (g_str_equal(type, "rng-egd")) {
2511 return false;
2512 }
2513
2514 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2515 /* Reason: cryptodev-vhost-user property "chardev" */
2516 if (g_str_equal(type, "cryptodev-vhost-user")) {
2517 return false;
2518 }
2519 #endif
2520
2521 /*
2522 * Reason: filter-* property "netdev" etc.
2523 */
2524 if (g_str_equal(type, "filter-buffer") ||
2525 g_str_equal(type, "filter-dump") ||
2526 g_str_equal(type, "filter-mirror") ||
2527 g_str_equal(type, "filter-redirector") ||
2528 g_str_equal(type, "colo-compare") ||
2529 g_str_equal(type, "filter-rewriter") ||
2530 g_str_equal(type, "filter-replay")) {
2531 return false;
2532 }
2533
2534 /* Memory allocation by backends needs to be done
2535 * after configure_accelerator() (due to the tcg_enabled()
2536 * checks at memory_region_init_*()).
2537 *
2538 * Also, allocation of large amounts of memory may delay
2539 * chardev initialization for too long, and trigger timeouts
2540 * on software that waits for a monitor socket to be created
2541 * (e.g. libvirt).
2542 */
2543 if (g_str_has_prefix(type, "memory-backend-")) {
2544 return false;
2545 }
2546
2547 return true;
2548 }
2549
2550
2551 /*
2552 * The remainder of object creation happens after the
2553 * creation of chardev, fsdev, net clients and device data types.
2554 */
2555 static bool object_create_delayed(const char *type, QemuOpts *opts)
2556 {
2557 return !object_create_initial(type, opts);
2558 }
2559
2560
2561 static bool set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2562 MachineClass *mc)
2563 {
2564 uint64_t sz;
2565 const char *mem_str;
2566 const ram_addr_t default_ram_size = mc->default_ram_size;
2567 QemuOpts *opts = qemu_find_opts_singleton("memory");
2568 Location loc;
2569
2570 loc_push_none(&loc);
2571 qemu_opts_loc_restore(opts);
2572
2573 sz = 0;
2574 mem_str = qemu_opt_get(opts, "size");
2575 if (mem_str) {
2576 if (!*mem_str) {
2577 error_report("missing 'size' option value");
2578 exit(EXIT_FAILURE);
2579 }
2580
2581 sz = qemu_opt_get_size(opts, "size", ram_size);
2582
2583 /* Fix up legacy suffix-less format */
2584 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2585 uint64_t overflow_check = sz;
2586
2587 sz *= MiB;
2588 if (sz / MiB != overflow_check) {
2589 error_report("too large 'size' option value");
2590 exit(EXIT_FAILURE);
2591 }
2592 }
2593 }
2594
2595 /* backward compatibility behaviour for case "-m 0" */
2596 if (sz == 0) {
2597 sz = default_ram_size;
2598 }
2599
2600 sz = QEMU_ALIGN_UP(sz, 8192);
2601 ram_size = sz;
2602 if (ram_size != sz) {
2603 error_report("ram size too large");
2604 exit(EXIT_FAILURE);
2605 }
2606
2607 /* store value for the future use */
2608 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2609 *maxram_size = ram_size;
2610
2611 if (qemu_opt_get(opts, "maxmem")) {
2612 uint64_t slots;
2613
2614 sz = qemu_opt_get_size(opts, "maxmem", 0);
2615 slots = qemu_opt_get_number(opts, "slots", 0);
2616 if (sz < ram_size) {
2617 error_report("invalid value of -m option maxmem: "
2618 "maximum memory size (0x%" PRIx64 ") must be at least "
2619 "the initial memory size (0x" RAM_ADDR_FMT ")",
2620 sz, ram_size);
2621 exit(EXIT_FAILURE);
2622 } else if (slots && sz == ram_size) {
2623 error_report("invalid value of -m option maxmem: "
2624 "memory slots were specified but maximum memory size "
2625 "(0x%" PRIx64 ") is equal to the initial memory size "
2626 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2627 exit(EXIT_FAILURE);
2628 }
2629
2630 *maxram_size = sz;
2631 *ram_slots = slots;
2632 } else if (qemu_opt_get(opts, "slots")) {
2633 error_report("invalid -m option value: missing 'maxmem' option");
2634 exit(EXIT_FAILURE);
2635 }
2636
2637 loc_pop(&loc);
2638 return !!mem_str;
2639 }
2640
2641 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2642 {
2643 GlobalProperty *g;
2644
2645 g = g_malloc0(sizeof(*g));
2646 g->driver = qemu_opt_get(opts, "driver");
2647 g->property = qemu_opt_get(opts, "property");
2648 g->value = qemu_opt_get(opts, "value");
2649 qdev_prop_register_global(g);
2650 return 0;
2651 }
2652
2653 static int qemu_read_default_config_file(void)
2654 {
2655 int ret;
2656
2657 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2658 if (ret < 0 && ret != -ENOENT) {
2659 return ret;
2660 }
2661
2662 return 0;
2663 }
2664
2665 static void user_register_global_props(void)
2666 {
2667 qemu_opts_foreach(qemu_find_opts("global"),
2668 global_init_func, NULL, NULL);
2669 }
2670
2671 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2672 {
2673 configure_icount(opts, errp);
2674 return 0;
2675 }
2676
2677 static int accelerator_set_property(void *opaque,
2678 const char *name, const char *value,
2679 Error **errp)
2680 {
2681 return object_parse_property_opt(opaque, name, value, "accel", errp);
2682 }
2683
2684 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2685 {
2686 bool *p_init_failed = opaque;
2687 const char *acc = qemu_opt_get(opts, "accel");
2688 AccelClass *ac = accel_find(acc);
2689 AccelState *accel;
2690 int ret;
2691
2692 if (!ac) {
2693 *p_init_failed = true;
2694 error_report("invalid accelerator %s", acc);
2695 return 0;
2696 }
2697 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2698 object_apply_compat_props(OBJECT(accel));
2699 qemu_opt_foreach(opts, accelerator_set_property,
2700 accel,
2701 &error_fatal);
2702
2703 ret = accel_init_machine(accel, current_machine);
2704 if (ret < 0) {
2705 *p_init_failed = true;
2706 error_report("failed to initialize %s: %s",
2707 acc, strerror(-ret));
2708 return 0;
2709 }
2710
2711 return 1;
2712 }
2713
2714 static void configure_accelerators(const char *progname)
2715 {
2716 const char *accel;
2717 bool init_failed = false;
2718
2719 qemu_opts_foreach(qemu_find_opts("icount"),
2720 do_configure_icount, NULL, &error_fatal);
2721
2722 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2723 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2724 char **accel_list, **tmp;
2725
2726 if (accel == NULL) {
2727 /* Select the default accelerator */
2728 bool have_tcg = accel_find("tcg");
2729 bool have_kvm = accel_find("kvm");
2730
2731 if (have_tcg && have_kvm) {
2732 if (g_str_has_suffix(progname, "kvm")) {
2733 /* If the program name ends with "kvm", we prefer KVM */
2734 accel = "kvm:tcg";
2735 } else {
2736 accel = "tcg:kvm";
2737 }
2738 } else if (have_kvm) {
2739 accel = "kvm";
2740 } else if (have_tcg) {
2741 accel = "tcg";
2742 } else {
2743 error_report("No accelerator selected and"
2744 " no default accelerator available");
2745 exit(1);
2746 }
2747 }
2748 accel_list = g_strsplit(accel, ":", 0);
2749
2750 for (tmp = accel_list; *tmp; tmp++) {
2751 /*
2752 * Filter invalid accelerators here, to prevent obscenities
2753 * such as "-machine accel=tcg,,thread=single".
2754 */
2755 if (accel_find(*tmp)) {
2756 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2757 } else {
2758 init_failed = true;
2759 error_report("invalid accelerator %s", *tmp);
2760 }
2761 }
2762 g_strfreev(accel_list);
2763 } else {
2764 if (accel != NULL) {
2765 error_report("The -accel and \"-machine accel=\" options are incompatible");
2766 exit(1);
2767 }
2768 }
2769
2770 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2771 do_configure_accelerator, &init_failed, &error_fatal)) {
2772 if (!init_failed) {
2773 error_report("no accelerator found");
2774 }
2775 exit(1);
2776 }
2777
2778 if (init_failed) {
2779 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2780 error_report("falling back to %s", ac->name);
2781 }
2782
2783 if (use_icount && !(tcg_enabled() || qtest_enabled())) {
2784 error_report("-icount is not allowed with hardware virtualization");
2785 exit(1);
2786 }
2787 }
2788
2789 static void create_default_memdev(MachineState *ms, const char *path)
2790 {
2791 Object *obj;
2792 MachineClass *mc = MACHINE_GET_CLASS(ms);
2793
2794 obj = object_new(path ? TYPE_MEMORY_BACKEND_FILE : TYPE_MEMORY_BACKEND_RAM);
2795 if (path) {
2796 object_property_set_str(obj, path, "mem-path", &error_fatal);
2797 }
2798 object_property_set_int(obj, ms->ram_size, "size", &error_fatal);
2799 object_property_add_child(object_get_objects_root(), mc->default_ram_id,
2800 obj, &error_fatal);
2801 user_creatable_complete(USER_CREATABLE(obj), &error_fatal);
2802 object_unref(obj);
2803 object_property_set_str(OBJECT(ms), mc->default_ram_id, "memory-backend",
2804 &error_fatal);
2805 }
2806
2807 void qemu_init(int argc, char **argv, char **envp)
2808 {
2809 int i;
2810 int snapshot, linux_boot;
2811 const char *initrd_filename;
2812 const char *kernel_filename, *kernel_cmdline;
2813 const char *boot_order = NULL;
2814 const char *boot_once = NULL;
2815 DisplayState *ds;
2816 QemuOpts *opts, *machine_opts;
2817 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2818 QemuOptsList *olist;
2819 int optind;
2820 const char *optarg;
2821 const char *loadvm = NULL;
2822 MachineClass *machine_class;
2823 const char *cpu_option;
2824 const char *vga_model = NULL;
2825 const char *qtest_chrdev = NULL;
2826 const char *qtest_log = NULL;
2827 const char *incoming = NULL;
2828 bool userconfig = true;
2829 bool nographic = false;
2830 int display_remote = 0;
2831 const char *log_mask = NULL;
2832 const char *log_file = NULL;
2833 char *trace_file = NULL;
2834 ram_addr_t maxram_size;
2835 uint64_t ram_slots = 0;
2836 FILE *vmstate_dump_file = NULL;
2837 Error *main_loop_err = NULL;
2838 Error *err = NULL;
2839 bool list_data_dirs = false;
2840 char *dir, **dirs;
2841 const char *mem_path = NULL;
2842 bool have_custom_ram_size;
2843 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2844 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2845 int mem_prealloc = 0; /* force preallocation of physical target memory */
2846
2847 os_set_line_buffering();
2848
2849 error_init(argv[0]);
2850 module_call_init(MODULE_INIT_TRACE);
2851
2852 qemu_init_cpu_list();
2853 qemu_init_cpu_loop();
2854
2855 qemu_mutex_lock_iothread();
2856
2857 atexit(qemu_run_exit_notifiers);
2858 qemu_init_exec_dir(argv[0]);
2859
2860 module_call_init(MODULE_INIT_QOM);
2861 module_call_init(MODULE_INIT_MIGRATION);
2862
2863 qemu_add_opts(&qemu_drive_opts);
2864 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2865 qemu_add_drive_opts(&qemu_common_drive_opts);
2866 qemu_add_drive_opts(&qemu_drive_opts);
2867 qemu_add_drive_opts(&bdrv_runtime_opts);
2868 qemu_add_opts(&qemu_chardev_opts);
2869 qemu_add_opts(&qemu_device_opts);
2870 qemu_add_opts(&qemu_netdev_opts);
2871 qemu_add_opts(&qemu_nic_opts);
2872 qemu_add_opts(&qemu_net_opts);
2873 qemu_add_opts(&qemu_rtc_opts);
2874 qemu_add_opts(&qemu_global_opts);
2875 qemu_add_opts(&qemu_mon_opts);
2876 qemu_add_opts(&qemu_trace_opts);
2877 qemu_plugin_add_opts();
2878 qemu_add_opts(&qemu_option_rom_opts);
2879 qemu_add_opts(&qemu_machine_opts);
2880 qemu_add_opts(&qemu_accel_opts);
2881 qemu_add_opts(&qemu_mem_opts);
2882 qemu_add_opts(&qemu_smp_opts);
2883 qemu_add_opts(&qemu_boot_opts);
2884 qemu_add_opts(&qemu_add_fd_opts);
2885 qemu_add_opts(&qemu_object_opts);
2886 qemu_add_opts(&qemu_tpmdev_opts);
2887 qemu_add_opts(&qemu_realtime_opts);
2888 qemu_add_opts(&qemu_overcommit_opts);
2889 qemu_add_opts(&qemu_msg_opts);
2890 qemu_add_opts(&qemu_name_opts);
2891 qemu_add_opts(&qemu_numa_opts);
2892 qemu_add_opts(&qemu_icount_opts);
2893 qemu_add_opts(&qemu_semihosting_config_opts);
2894 qemu_add_opts(&qemu_fw_cfg_opts);
2895 module_call_init(MODULE_INIT_OPTS);
2896
2897 runstate_init();
2898 precopy_infrastructure_init();
2899 postcopy_infrastructure_init();
2900 monitor_init_globals();
2901
2902 if (qcrypto_init(&err) < 0) {
2903 error_reportf_err(err, "cannot initialize crypto: ");
2904 exit(1);
2905 }
2906
2907 QTAILQ_INIT(&vm_change_state_head);
2908 os_setup_early_signal_handling();
2909
2910 cpu_option = NULL;
2911 snapshot = 0;
2912
2913 nb_nics = 0;
2914
2915 bdrv_init_with_whitelist();
2916
2917 autostart = 1;
2918
2919 /* first pass of option parsing */
2920 optind = 1;
2921 while (optind < argc) {
2922 if (argv[optind][0] != '-') {
2923 /* disk image */
2924 optind++;
2925 } else {
2926 const QEMUOption *popt;
2927
2928 popt = lookup_opt(argc, argv, &optarg, &optind);
2929 switch (popt->index) {
2930 case QEMU_OPTION_nouserconfig:
2931 userconfig = false;
2932 break;
2933 }
2934 }
2935 }
2936
2937 if (userconfig) {
2938 if (qemu_read_default_config_file() < 0) {
2939 exit(1);
2940 }
2941 }
2942
2943 /* second pass of option parsing */
2944 optind = 1;
2945 for(;;) {
2946 if (optind >= argc)
2947 break;
2948 if (argv[optind][0] != '-') {
2949 loc_set_cmdline(argv, optind, 1);
2950 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2951 } else {
2952 const QEMUOption *popt;
2953
2954 popt = lookup_opt(argc, argv, &optarg, &optind);
2955 if (!(popt->arch_mask & arch_type)) {
2956 error_report("Option not supported for this target");
2957 exit(1);
2958 }
2959 switch(popt->index) {
2960 case QEMU_OPTION_cpu:
2961 /* hw initialization will check this */
2962 cpu_option = optarg;
2963 break;
2964 case QEMU_OPTION_hda:
2965 case QEMU_OPTION_hdb:
2966 case QEMU_OPTION_hdc:
2967 case QEMU_OPTION_hdd:
2968 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2969 HD_OPTS);
2970 break;
2971 case QEMU_OPTION_blockdev:
2972 {
2973 Visitor *v;
2974 BlockdevOptionsQueueEntry *bdo;
2975
2976 v = qobject_input_visitor_new_str(optarg, "driver",
2977 &error_fatal);
2978
2979 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2980 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2981 &error_fatal);
2982 visit_free(v);
2983 loc_save(&bdo->loc);
2984 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2985 break;
2986 }
2987 case QEMU_OPTION_drive:
2988 if (drive_def(optarg) == NULL) {
2989 exit(1);
2990 }
2991 break;
2992 case QEMU_OPTION_set:
2993 if (qemu_set_option(optarg) != 0)
2994 exit(1);
2995 break;
2996 case QEMU_OPTION_global:
2997 if (qemu_global_option(optarg) != 0)
2998 exit(1);
2999 break;
3000 case QEMU_OPTION_mtdblock:
3001 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3002 break;
3003 case QEMU_OPTION_sd:
3004 drive_add(IF_SD, -1, optarg, SD_OPTS);
3005 break;
3006 case QEMU_OPTION_pflash:
3007 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3008 break;
3009 case QEMU_OPTION_snapshot:
3010 {
3011 Error *blocker = NULL;
3012 snapshot = 1;
3013 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3014 "-snapshot");
3015 replay_add_blocker(blocker);
3016 }
3017 break;
3018 case QEMU_OPTION_numa:
3019 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3020 optarg, true);
3021 if (!opts) {
3022 exit(1);
3023 }
3024 break;
3025 case QEMU_OPTION_display:
3026 parse_display(optarg);
3027 break;
3028 case QEMU_OPTION_nographic:
3029 olist = qemu_find_opts("machine");
3030 qemu_opts_parse_noisily(olist, "graphics=off", false);
3031 nographic = true;
3032 dpy.type = DISPLAY_TYPE_NONE;
3033 break;
3034 case QEMU_OPTION_curses:
3035 #ifdef CONFIG_CURSES
3036 dpy.type = DISPLAY_TYPE_CURSES;
3037 #else
3038 error_report("curses or iconv support is disabled");
3039 exit(1);
3040 #endif
3041 break;
3042 case QEMU_OPTION_portrait:
3043 graphic_rotate = 90;
3044 break;
3045 case QEMU_OPTION_rotate:
3046 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3047 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3048 graphic_rotate != 180 && graphic_rotate != 270) {
3049 error_report("only 90, 180, 270 deg rotation is available");
3050 exit(1);
3051 }
3052 break;
3053 case QEMU_OPTION_kernel:
3054 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3055 &error_abort);
3056 break;
3057 case QEMU_OPTION_initrd:
3058 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3059 &error_abort);
3060 break;
3061 case QEMU_OPTION_append:
3062 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3063 &error_abort);
3064 break;
3065 case QEMU_OPTION_dtb:
3066 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3067 &error_abort);
3068 break;
3069 case QEMU_OPTION_cdrom:
3070 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3071 break;
3072 case QEMU_OPTION_boot:
3073 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3074 optarg, true);
3075 if (!opts) {
3076 exit(1);
3077 }
3078 break;
3079 case QEMU_OPTION_fda:
3080 case QEMU_OPTION_fdb:
3081 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3082 optarg, FD_OPTS);
3083 break;
3084 case QEMU_OPTION_no_fd_bootchk:
3085 fd_bootchk = 0;
3086 break;
3087 case QEMU_OPTION_netdev:
3088 default_net = 0;
3089 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3090 exit(1);
3091 }
3092 break;
3093 case QEMU_OPTION_nic:
3094 default_net = 0;
3095 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3096 exit(1);
3097 }
3098 break;
3099 case QEMU_OPTION_net:
3100 default_net = 0;
3101 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3102 exit(1);
3103 }
3104 break;
3105 #ifdef CONFIG_LIBISCSI
3106 case QEMU_OPTION_iscsi:
3107 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3108 optarg, false);
3109 if (!opts) {
3110 exit(1);
3111 }
3112 break;
3113 #endif
3114 case QEMU_OPTION_audio_help:
3115 audio_legacy_help();
3116 exit (0);
3117 break;
3118 case QEMU_OPTION_audiodev:
3119 audio_parse_option(optarg);
3120 break;
3121 case QEMU_OPTION_soundhw:
3122 select_soundhw (optarg);
3123 break;
3124 case QEMU_OPTION_h:
3125 help(0);
3126 break;
3127 case QEMU_OPTION_version:
3128 version();
3129 exit(0);
3130 break;
3131 case QEMU_OPTION_m:
3132 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3133 optarg, true);
3134 if (!opts) {
3135 exit(EXIT_FAILURE);
3136 }
3137 break;
3138 #ifdef CONFIG_TPM
3139 case QEMU_OPTION_tpmdev:
3140 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3141 exit(1);
3142 }
3143 break;
3144 #endif
3145 case QEMU_OPTION_mempath:
3146 mem_path = optarg;
3147 break;
3148 case QEMU_OPTION_mem_prealloc:
3149 mem_prealloc = 1;
3150 break;
3151 case QEMU_OPTION_d:
3152 log_mask = optarg;
3153 break;
3154 case QEMU_OPTION_D:
3155 log_file = optarg;
3156 break;
3157 case QEMU_OPTION_DFILTER:
3158 qemu_set_dfilter_ranges(optarg, &error_fatal);
3159 break;
3160 case QEMU_OPTION_seed:
3161 qemu_guest_random_seed_main(optarg, &error_fatal);
3162 break;
3163 case QEMU_OPTION_s:
3164 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3165 break;
3166 case QEMU_OPTION_gdb:
3167 add_device_config(DEV_GDB, optarg);
3168 break;
3169 case QEMU_OPTION_L:
3170 if (is_help_option(optarg)) {
3171 list_data_dirs = true;
3172 } else {
3173 qemu_add_data_dir(optarg);
3174 }
3175 break;
3176 case QEMU_OPTION_bios:
3177 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3178 &error_abort);
3179 break;
3180 case QEMU_OPTION_singlestep:
3181 singlestep = 1;
3182 break;
3183 case QEMU_OPTION_S:
3184 autostart = 0;
3185 break;
3186 case QEMU_OPTION_k:
3187 keyboard_layout = optarg;
3188 break;
3189 case QEMU_OPTION_vga:
3190 vga_model = optarg;
3191 default_vga = 0;
3192 break;
3193 case QEMU_OPTION_g:
3194 {
3195 const char *p;
3196 int w, h, depth;
3197 p = optarg;
3198 w = strtol(p, (char **)&p, 10);
3199 if (w <= 0) {
3200 graphic_error:
3201 error_report("invalid resolution or depth");
3202 exit(1);
3203 }
3204 if (*p != 'x')
3205 goto graphic_error;
3206 p++;
3207 h = strtol(p, (char **)&p, 10);
3208 if (h <= 0)
3209 goto graphic_error;
3210 if (*p == 'x') {
3211 p++;
3212 depth = strtol(p, (char **)&p, 10);
3213 if (depth != 1 && depth != 2 && depth != 4 &&
3214 depth != 8 && depth != 15 && depth != 16 &&
3215 depth != 24 && depth != 32)
3216 goto graphic_error;
3217 } else if (*p == '\0') {
3218 depth = graphic_depth;
3219 } else {
3220 goto graphic_error;
3221 }
3222
3223 graphic_width = w;
3224 graphic_height = h;
3225 graphic_depth = depth;
3226 }
3227 break;
3228 case QEMU_OPTION_echr:
3229 {
3230 char *r;
3231 term_escape_char = strtol(optarg, &r, 0);
3232 if (r == optarg)
3233 printf("Bad argument to echr\n");
3234 break;
3235 }
3236 case QEMU_OPTION_monitor:
3237 default_monitor = 0;
3238 if (strncmp(optarg, "none", 4)) {
3239 monitor_parse(optarg, "readline", false);
3240 }
3241 break;
3242 case QEMU_OPTION_qmp:
3243 monitor_parse(optarg, "control", false);
3244 default_monitor = 0;
3245 break;
3246 case QEMU_OPTION_qmp_pretty:
3247 monitor_parse(optarg, "control", true);
3248 default_monitor = 0;
3249 break;
3250 case QEMU_OPTION_mon:
3251 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3252 true);
3253 if (!opts) {
3254 exit(1);
3255 }
3256 default_monitor = 0;
3257 break;
3258 case QEMU_OPTION_chardev:
3259 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3260 optarg, true);
3261 if (!opts) {
3262 exit(1);
3263 }
3264 break;
3265 case QEMU_OPTION_fsdev:
3266 olist = qemu_find_opts("fsdev");
3267 if (!olist) {
3268 error_report("fsdev support is disabled");
3269 exit(1);
3270 }
3271 opts = qemu_opts_parse_noisily(olist, optarg, true);
3272 if (!opts) {
3273 exit(1);
3274 }
3275 break;
3276 case QEMU_OPTION_virtfs: {
3277 QemuOpts *fsdev;
3278 QemuOpts *device;
3279 const char *writeout, *sock_fd, *socket, *path, *security_model,
3280 *multidevs;
3281
3282 olist = qemu_find_opts("virtfs");
3283 if (!olist) {
3284 error_report("virtfs support is disabled");
3285 exit(1);
3286 }
3287 opts = qemu_opts_parse_noisily(olist, optarg, true);
3288 if (!opts) {
3289 exit(1);
3290 }
3291
3292 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3293 qemu_opt_get(opts, "mount_tag") == NULL) {
3294 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3295 exit(1);
3296 }
3297 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3298 qemu_opts_id(opts) ?:
3299 qemu_opt_get(opts, "mount_tag"),
3300 1, NULL);
3301 if (!fsdev) {
3302 error_report("duplicate or invalid fsdev id: %s",
3303 qemu_opt_get(opts, "mount_tag"));
3304 exit(1);
3305 }
3306
3307 writeout = qemu_opt_get(opts, "writeout");
3308 if (writeout) {
3309 #ifdef CONFIG_SYNC_FILE_RANGE
3310 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3311 #else
3312 error_report("writeout=immediate not supported "
3313 "on this platform");
3314 exit(1);
3315 #endif
3316 }
3317 qemu_opt_set(fsdev, "fsdriver",
3318 qemu_opt_get(opts, "fsdriver"), &error_abort);
3319 path = qemu_opt_get(opts, "path");
3320 if (path) {
3321 qemu_opt_set(fsdev, "path", path, &error_abort);
3322 }
3323 security_model = qemu_opt_get(opts, "security_model");
3324 if (security_model) {
3325 qemu_opt_set(fsdev, "security_model", security_model,
3326 &error_abort);
3327 }
3328 socket = qemu_opt_get(opts, "socket");
3329 if (socket) {
3330 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3331 }
3332 sock_fd = qemu_opt_get(opts, "sock_fd");
3333 if (sock_fd) {
3334 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3335 }
3336
3337 qemu_opt_set_bool(fsdev, "readonly",
3338 qemu_opt_get_bool(opts, "readonly", 0),
3339 &error_abort);
3340 multidevs = qemu_opt_get(opts, "multidevs");
3341 if (multidevs) {
3342 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3343 }
3344 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3345 &error_abort);
3346 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3347 qemu_opt_set(device, "fsdev",
3348 qemu_opts_id(fsdev), &error_abort);
3349 qemu_opt_set(device, "mount_tag",
3350 qemu_opt_get(opts, "mount_tag"), &error_abort);
3351 break;
3352 }
3353 case QEMU_OPTION_serial:
3354 add_device_config(DEV_SERIAL, optarg);
3355 default_serial = 0;
3356 if (strncmp(optarg, "mon:", 4) == 0) {
3357 default_monitor = 0;
3358 }
3359 break;
3360 case QEMU_OPTION_watchdog:
3361 if (watchdog) {
3362 error_report("only one watchdog option may be given");
3363 exit(1);
3364 }
3365 watchdog = optarg;
3366 break;
3367 case QEMU_OPTION_watchdog_action:
3368 if (select_watchdog_action(optarg) == -1) {
3369 error_report("unknown -watchdog-action parameter");
3370 exit(1);
3371 }
3372 break;
3373 case QEMU_OPTION_parallel:
3374 add_device_config(DEV_PARALLEL, optarg);
3375 default_parallel = 0;
3376 if (strncmp(optarg, "mon:", 4) == 0) {
3377 default_monitor = 0;
3378 }
3379 break;
3380 case QEMU_OPTION_debugcon:
3381 add_device_config(DEV_DEBUGCON, optarg);
3382 break;
3383 case QEMU_OPTION_loadvm:
3384 loadvm = optarg;
3385 break;
3386 case QEMU_OPTION_full_screen:
3387 dpy.has_full_screen = true;
3388 dpy.full_screen = true;
3389 break;
3390 case QEMU_OPTION_alt_grab:
3391 alt_grab = 1;
3392 break;
3393 case QEMU_OPTION_ctrl_grab:
3394 ctrl_grab = 1;
3395 break;
3396 case QEMU_OPTION_no_quit:
3397 dpy.has_window_close = true;
3398 dpy.window_close = false;
3399 break;
3400 case QEMU_OPTION_sdl:
3401 #ifdef CONFIG_SDL
3402 dpy.type = DISPLAY_TYPE_SDL;
3403 break;
3404 #else
3405 error_report("SDL support is disabled");
3406 exit(1);
3407 #endif
3408 case QEMU_OPTION_pidfile:
3409 pid_file = optarg;
3410 break;
3411 case QEMU_OPTION_win2k_hack:
3412 win2k_install_hack = 1;
3413 break;
3414 case QEMU_OPTION_acpitable:
3415 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3416 optarg, true);
3417 if (!opts) {
3418 exit(1);
3419 }
3420 acpi_table_add(opts, &error_fatal);
3421 break;
3422 case QEMU_OPTION_smbios:
3423 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3424 optarg, false);
3425 if (!opts) {
3426 exit(1);
3427 }
3428 smbios_entry_add(opts, &error_fatal);
3429 break;
3430 case QEMU_OPTION_fwcfg:
3431 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3432 optarg, true);
3433 if (opts == NULL) {
3434 exit(1);
3435 }
3436 break;
3437 case QEMU_OPTION_preconfig:
3438 preconfig_exit_requested = false;
3439 break;
3440 case QEMU_OPTION_enable_kvm:
3441 olist = qemu_find_opts("machine");
3442 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3443 break;
3444 case QEMU_OPTION_M:
3445 case QEMU_OPTION_machine:
3446 olist = qemu_find_opts("machine");
3447 opts = qemu_opts_parse_noisily(olist, optarg, true);
3448 if (!opts) {
3449 exit(1);
3450 }
3451 break;
3452 case QEMU_OPTION_no_kvm:
3453 olist = qemu_find_opts("machine");
3454 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3455 break;
3456 case QEMU_OPTION_accel:
3457 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3458 optarg, true);
3459 optarg = qemu_opt_get(accel_opts, "accel");
3460 if (!optarg || is_help_option(optarg)) {
3461 printf("Accelerators supported in QEMU binary:\n");
3462 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3463 false);
3464 for (el = accel_list; el; el = el->next) {
3465 gchar *typename = g_strdup(object_class_get_name(
3466 OBJECT_CLASS(el->data)));
3467 /* omit qtest which is used for tests only */
3468 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3469 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3470 gchar **optname = g_strsplit(typename,
3471 ACCEL_CLASS_SUFFIX, 0);
3472 printf("%s\n", optname[0]);
3473 g_strfreev(optname);
3474 }
3475 g_free(typename);
3476 }
3477 g_slist_free(accel_list);
3478 exit(0);
3479 }
3480 if (optarg && strchr(optarg, ':')) {
3481 error_report("Don't use ':' with -accel, "
3482 "use -M accel=... for now instead");
3483 exit(1);
3484 }
3485 break;
3486 case QEMU_OPTION_usb:
3487 olist = qemu_find_opts("machine");
3488 qemu_opts_parse_noisily(olist, "usb=on", false);
3489 break;
3490 case QEMU_OPTION_usbdevice:
3491 error_report("'-usbdevice' is deprecated, please use "
3492 "'-device usb-...' instead");
3493 olist = qemu_find_opts("machine");
3494 qemu_opts_parse_noisily(olist, "usb=on", false);
3495 add_device_config(DEV_USB, optarg);
3496 break;
3497 case QEMU_OPTION_device:
3498 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3499 optarg, true)) {
3500 exit(1);
3501 }
3502 break;
3503 case QEMU_OPTION_smp:
3504 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3505 optarg, true)) {
3506 exit(1);
3507 }
3508 break;
3509 case QEMU_OPTION_vnc:
3510 vnc_parse(optarg, &error_fatal);
3511 break;
3512 case QEMU_OPTION_no_acpi:
3513 acpi_enabled = 0;
3514 break;
3515 case QEMU_OPTION_no_hpet:
3516 no_hpet = 1;
3517 break;
3518 case QEMU_OPTION_no_reboot:
3519 no_reboot = 1;
3520 break;
3521 case QEMU_OPTION_no_shutdown:
3522 no_shutdown = 1;
3523 break;
3524 case QEMU_OPTION_show_cursor:
3525 warn_report("The -show-cursor option is deprecated, "
3526 "use -display {sdl,gtk},show-cursor=on instead");
3527 dpy.has_show_cursor = true;
3528 dpy.show_cursor = true;
3529 break;
3530 case QEMU_OPTION_uuid:
3531 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3532 error_report("failed to parse UUID string: wrong format");
3533 exit(1);
3534 }
3535 qemu_uuid_set = true;
3536 break;
3537 case QEMU_OPTION_option_rom:
3538 if (nb_option_roms >= MAX_OPTION_ROMS) {
3539 error_report("too many option ROMs");
3540 exit(1);
3541 }
3542 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3543 optarg, true);
3544 if (!opts) {
3545 exit(1);
3546 }
3547 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3548 option_rom[nb_option_roms].bootindex =
3549 qemu_opt_get_number(opts, "bootindex", -1);
3550 if (!option_rom[nb_option_roms].name) {
3551 error_report("Option ROM file is not specified");
3552 exit(1);
3553 }
3554 nb_option_roms++;
3555 break;
3556 case QEMU_OPTION_semihosting:
3557 qemu_semihosting_enable();
3558 break;
3559 case QEMU_OPTION_semihosting_config:
3560 if (qemu_semihosting_config_options(optarg) != 0) {
3561 exit(1);
3562 }
3563 break;
3564 case QEMU_OPTION_name:
3565 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3566 optarg, true);
3567 if (!opts) {
3568 exit(1);
3569 }
3570 break;
3571 case QEMU_OPTION_prom_env:
3572 if (nb_prom_envs >= MAX_PROM_ENVS) {
3573 error_report("too many prom variables");
3574 exit(1);
3575 }
3576 prom_envs[nb_prom_envs] = optarg;
3577 nb_prom_envs++;
3578 break;
3579 case QEMU_OPTION_old_param:
3580 old_param = 1;
3581 break;
3582 case QEMU_OPTION_rtc:
3583 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3584 false);
3585 if (!opts) {
3586 exit(1);
3587 }
3588 break;
3589 case QEMU_OPTION_tb_size:
3590 #ifndef CONFIG_TCG
3591 error_report("TCG is disabled");
3592 exit(1);
3593 #endif
3594 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3595 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3596 break;
3597 case QEMU_OPTION_icount:
3598 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3599 optarg, true);
3600 if (!icount_opts) {
3601 exit(1);
3602 }
3603 break;
3604 case QEMU_OPTION_incoming:
3605 if (!incoming) {
3606 runstate_set(RUN_STATE_INMIGRATE);
3607 }
3608 incoming = optarg;
3609 break;
3610 case QEMU_OPTION_only_migratable:
3611 only_migratable = 1;
3612 break;
3613 case QEMU_OPTION_nodefaults:
3614 has_defaults = 0;
3615 break;
3616 case QEMU_OPTION_xen_domid:
3617 if (!(xen_available())) {
3618 error_report("Option not supported for this target");
3619 exit(1);
3620 }
3621 xen_domid = atoi(optarg);
3622 break;
3623 case QEMU_OPTION_xen_attach:
3624 if (!(xen_available())) {
3625 error_report("Option not supported for this target");
3626 exit(1);
3627 }
3628 xen_mode = XEN_ATTACH;
3629 break;
3630 case QEMU_OPTION_xen_domid_restrict:
3631 if (!(xen_available())) {
3632 error_report("Option not supported for this target");
3633 exit(1);
3634 }
3635 xen_domid_restrict = true;
3636 break;
3637 case QEMU_OPTION_trace:
3638 g_free(trace_file);
3639 trace_file = trace_opt_parse(optarg);
3640 break;
3641 case QEMU_OPTION_plugin:
3642 qemu_plugin_opt_parse(optarg, &plugin_list);
3643 break;
3644 case QEMU_OPTION_readconfig:
3645 {
3646 int ret = qemu_read_config_file(optarg);
3647 if (ret < 0) {
3648 error_report("read config %s: %s", optarg,
3649 strerror(-ret));
3650 exit(1);
3651 }
3652 break;
3653 }
3654 case QEMU_OPTION_spice:
3655 olist = qemu_find_opts("spice");
3656 if (!olist) {
3657 error_report("spice support is disabled");
3658 exit(1);
3659 }
3660 opts = qemu_opts_parse_noisily(olist, optarg, false);
3661 if (!opts) {
3662 exit(1);
3663 }
3664 display_remote++;
3665 break;
3666 case QEMU_OPTION_writeconfig:
3667 {
3668 FILE *fp;
3669 if (strcmp(optarg, "-") == 0) {
3670 fp = stdout;
3671 } else {
3672 fp = fopen(optarg, "w");
3673 if (fp == NULL) {
3674 error_report("open %s: %s", optarg,
3675 strerror(errno));
3676 exit(1);
3677 }
3678 }
3679 qemu_config_write(fp);
3680 if (fp != stdout) {
3681 fclose(fp);
3682 }
3683 break;
3684 }
3685 case QEMU_OPTION_qtest:
3686 qtest_chrdev = optarg;
3687 break;
3688 case QEMU_OPTION_qtest_log:
3689 qtest_log = optarg;
3690 break;
3691 case QEMU_OPTION_sandbox:
3692 olist = qemu_find_opts("sandbox");
3693 if (!olist) {
3694 #ifndef CONFIG_SECCOMP
3695 error_report("-sandbox support is not enabled "
3696 "in this QEMU binary");
3697 #endif
3698 exit(1);
3699 }
3700
3701 opts = qemu_opts_parse_noisily(olist, optarg, true);
3702 if (!opts) {
3703 exit(1);
3704 }
3705 break;
3706 case QEMU_OPTION_add_fd:
3707 #ifndef _WIN32
3708 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3709 optarg, false);
3710 if (!opts) {
3711 exit(1);
3712 }
3713 #else
3714 error_report("File descriptor passing is disabled on this "
3715 "platform");
3716 exit(1);
3717 #endif
3718 break;
3719 case QEMU_OPTION_object:
3720 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3721 optarg, true);
3722 if (!opts) {
3723 exit(1);
3724 }
3725 break;
3726 case QEMU_OPTION_realtime:
3727 warn_report("'-realtime mlock=...' is deprecated, please use "
3728 "'-overcommit mem-lock=...' instead");
3729 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3730 optarg, false);
3731 if (!opts) {
3732 exit(1);
3733 }
3734 /* Don't override the -overcommit option if set */
3735 enable_mlock = enable_mlock ||
3736 qemu_opt_get_bool(opts, "mlock", true);
3737 break;
3738 case QEMU_OPTION_overcommit:
3739 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3740 optarg, false);
3741 if (!opts) {
3742 exit(1);
3743 }
3744 /* Don't override the -realtime option if set */
3745 enable_mlock = enable_mlock ||
3746 qemu_opt_get_bool(opts, "mem-lock", false);
3747 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3748 break;
3749 case QEMU_OPTION_msg:
3750 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3751 false);
3752 if (!opts) {
3753 exit(1);
3754 }
3755 configure_msg(opts);
3756 break;
3757 case QEMU_OPTION_dump_vmstate:
3758 if (vmstate_dump_file) {
3759 error_report("only one '-dump-vmstate' "
3760 "option may be given");
3761 exit(1);
3762 }
3763 vmstate_dump_file = fopen(optarg, "w");
3764 if (vmstate_dump_file == NULL) {
3765 error_report("open %s: %s", optarg, strerror(errno));
3766 exit(1);
3767 }
3768 break;
3769 case QEMU_OPTION_enable_sync_profile:
3770 qsp_enable();
3771 break;
3772 case QEMU_OPTION_nouserconfig:
3773 /* Nothing to be parsed here. Especially, do not error out below. */
3774 break;
3775 default:
3776 if (os_parse_cmd_args(popt->index, optarg)) {
3777 error_report("Option not supported in this build");
3778 exit(1);
3779 }
3780 }
3781 }
3782 }
3783 /*
3784 * Clear error location left behind by the loop.
3785 * Best done right after the loop. Do not insert code here!
3786 */
3787 loc_set_none();
3788
3789 user_register_global_props();
3790
3791 replay_configure(icount_opts);
3792
3793 if (incoming && !preconfig_exit_requested) {
3794 error_report("'preconfig' and 'incoming' options are "
3795 "mutually exclusive");
3796 exit(EXIT_FAILURE);
3797 }
3798
3799 configure_rtc(qemu_find_opts_singleton("rtc"));
3800
3801 machine_class = select_machine();
3802 object_set_machine_compat_props(machine_class->compat_props);
3803
3804 have_custom_ram_size = set_memory_options(&ram_slots, &maxram_size,
3805 machine_class);
3806
3807 os_daemonize();
3808
3809 /*
3810 * If QTest is enabled, keep the rcu_atfork enabled, since system processes
3811 * may be forked testing purposes (e.g. fork-server based fuzzing) The fork
3812 * should happen before a signle cpu instruction is executed, to prevent
3813 * deadlocks. See commit 73c6e40, rcu: "completely disable pthread_atfork
3814 * callbacks as soon as possible"
3815 */
3816 if (!qtest_enabled()) {
3817 rcu_disable_atfork();
3818 }
3819
3820 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3821 error_reportf_err(err, "cannot create PID file: ");
3822 exit(1);
3823 }
3824
3825 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3826 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3827
3828 if (qemu_init_main_loop(&main_loop_err)) {
3829 error_report_err(main_loop_err);
3830 exit(1);
3831 }
3832
3833 #ifdef CONFIG_SECCOMP
3834 olist = qemu_find_opts_err("sandbox", NULL);
3835 if (olist) {
3836 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3837 }
3838 #endif
3839
3840 qemu_opts_foreach(qemu_find_opts("name"),
3841 parse_name, NULL, &error_fatal);
3842
3843 #ifndef _WIN32
3844 qemu_opts_foreach(qemu_find_opts("add-fd"),
3845 parse_add_fd, NULL, &error_fatal);
3846
3847 qemu_opts_foreach(qemu_find_opts("add-fd"),
3848 cleanup_add_fd, NULL, &error_fatal);
3849 #endif
3850
3851 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3852 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3853 exit(0);
3854 }
3855 object_property_add_child(object_get_root(), "machine",
3856 OBJECT(current_machine), &error_abort);
3857 object_property_add_child(container_get(OBJECT(current_machine),
3858 "/unattached"),
3859 "sysbus", OBJECT(sysbus_get_default()),
3860 NULL);
3861
3862 if (machine_class->minimum_page_bits) {
3863 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3864 /* This would be a board error: specifying a minimum smaller than
3865 * a target's compile-time fixed setting.
3866 */
3867 g_assert_not_reached();
3868 }
3869 }
3870
3871 cpu_exec_init_all();
3872
3873 if (machine_class->hw_version) {
3874 qemu_set_hw_version(machine_class->hw_version);
3875 }
3876
3877 if (cpu_option && is_help_option(cpu_option)) {
3878 list_cpus(cpu_option);
3879 exit(0);
3880 }
3881
3882 if (!trace_init_backends()) {
3883 exit(1);
3884 }
3885 trace_init_file(trace_file);
3886
3887 /* Open the logfile at this point and set the log mask if necessary.
3888 */
3889 qemu_set_log_filename(log_file, &error_fatal);
3890 if (log_mask) {
3891 int mask;
3892 mask = qemu_str_to_log_mask(log_mask);
3893 if (!mask) {
3894 qemu_print_log_usage(stdout);
3895 exit(1);
3896 }
3897 qemu_set_log(mask);
3898 } else {
3899 qemu_set_log(0);
3900 }
3901
3902 /* add configured firmware directories */
3903 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3904 for (i = 0; dirs[i] != NULL; i++) {
3905 qemu_add_data_dir(dirs[i]);
3906 }
3907 g_strfreev(dirs);
3908
3909 /* try to find datadir relative to the executable path */
3910 dir = os_find_datadir();
3911 qemu_add_data_dir(dir);
3912 g_free(dir);
3913
3914 /* add the datadir specified when building */
3915 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3916
3917 /* -L help lists the data directories and exits. */
3918 if (list_data_dirs) {
3919 for (i = 0; i < data_dir_idx; i++) {
3920 printf("%s\n", data_dir[i]);
3921 }
3922 exit(0);
3923 }
3924
3925 /* machine_class: default to UP */
3926 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3927 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3928 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3929
3930 /* default to machine_class->default_cpus */
3931 current_machine->smp.cpus = machine_class->default_cpus;
3932 current_machine->smp.max_cpus = machine_class->default_cpus;
3933 current_machine->smp.cores = 1;
3934 current_machine->smp.threads = 1;
3935
3936 machine_class->smp_parse(current_machine,
3937 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3938
3939 /* sanity-check smp_cpus and max_cpus against machine_class */
3940 if (current_machine->smp.cpus < machine_class->min_cpus) {
3941 error_report("Invalid SMP CPUs %d. The min CPUs "
3942 "supported by machine '%s' is %d",
3943 current_machine->smp.cpus,
3944 machine_class->name, machine_class->min_cpus);
3945 exit(1);
3946 }
3947 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3948 error_report("Invalid SMP CPUs %d. The max CPUs "
3949 "supported by machine '%s' is %d",
3950 current_machine->smp.max_cpus,
3951 machine_class->name, machine_class->max_cpus);
3952 exit(1);
3953 }
3954
3955 if (mem_prealloc) {
3956 char *val;
3957
3958 val = g_strdup_printf("%d", current_machine->smp.cpus);
3959 object_register_sugar_prop("memory-backend", "prealloc-threads", val);
3960 g_free(val);
3961 object_register_sugar_prop("memory-backend", "prealloc", "on");
3962 }
3963
3964 /*
3965 * Get the default machine options from the machine if it is not already
3966 * specified either by the configuration file or by the command line.
3967 */
3968 if (machine_class->default_machine_opts) {
3969 qemu_opts_set_defaults(qemu_find_opts("machine"),
3970 machine_class->default_machine_opts, 0);
3971 }
3972
3973 /* process plugin before CPUs are created, but once -smp has been parsed */
3974 if (qemu_plugin_load_list(&plugin_list)) {
3975 exit(1);
3976 }
3977
3978 qemu_opts_foreach(qemu_find_opts("device"),
3979 default_driver_check, NULL, NULL);
3980 qemu_opts_foreach(qemu_find_opts("global"),
3981 default_driver_check, NULL, NULL);
3982
3983 if (!vga_model && !default_vga) {
3984 vga_interface_type = VGA_DEVICE;
3985 }
3986 if (!has_defaults || machine_class->no_serial) {
3987 default_serial = 0;
3988 }
3989 if (!has_defaults || machine_class->no_parallel) {
3990 default_parallel = 0;
3991 }
3992 if (!has_defaults || machine_class->no_floppy) {
3993 default_floppy = 0;
3994 }
3995 if (!has_defaults || machine_class->no_cdrom) {
3996 default_cdrom = 0;
3997 }
3998 if (!has_defaults || machine_class->no_sdcard) {
3999 default_sdcard = 0;
4000 }
4001 if (!has_defaults) {
4002 default_monitor = 0;
4003 default_net = 0;
4004 default_vga = 0;
4005 }
4006
4007 if (is_daemonized()) {
4008 if (!preconfig_exit_requested) {
4009 error_report("'preconfig' and 'daemonize' options are "
4010 "mutually exclusive");
4011 exit(EXIT_FAILURE);
4012 }
4013
4014 /* According to documentation and historically, -nographic redirects
4015 * serial port, parallel port and monitor to stdio, which does not work
4016 * with -daemonize. We can redirect these to null instead, but since
4017 * -nographic is legacy, let's just error out.
4018 * We disallow -nographic only if all other ports are not redirected
4019 * explicitly, to not break existing legacy setups which uses
4020 * -nographic _and_ redirects all ports explicitly - this is valid
4021 * usage, -nographic is just a no-op in this case.
4022 */
4023 if (nographic
4024 && (default_parallel || default_serial || default_monitor)) {
4025 error_report("-nographic cannot be used with -daemonize");
4026 exit(1);
4027 }
4028 #ifdef CONFIG_CURSES
4029 if (dpy.type == DISPLAY_TYPE_CURSES) {
4030 error_report("curses display cannot be used with -daemonize");
4031 exit(1);
4032 }
4033 #endif
4034 }
4035
4036 if (nographic) {
4037 if (default_parallel)
4038 add_device_config(DEV_PARALLEL, "null");
4039 if (default_serial && default_monitor) {
4040 add_device_config(DEV_SERIAL, "mon:stdio");
4041 } else {
4042 if (default_serial)
4043 add_device_config(DEV_SERIAL, "stdio");
4044 if (default_monitor)
4045 monitor_parse("stdio", "readline", false);
4046 }
4047 } else {
4048 if (default_serial)
4049 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4050 if (default_parallel)
4051 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4052 if (default_monitor)
4053 monitor_parse("vc:80Cx24C", "readline", false);
4054 }
4055
4056 #if defined(CONFIG_VNC)
4057 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4058 display_remote++;
4059 }
4060 #endif
4061 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4062 if (!qemu_display_find_default(&dpy)) {
4063 dpy.type = DISPLAY_TYPE_NONE;
4064 #if defined(CONFIG_VNC)
4065 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4066 #endif
4067 }
4068 }
4069 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4070 dpy.type = DISPLAY_TYPE_NONE;
4071 }
4072
4073 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4074 error_report("-alt-grab and -ctrl-grab are only valid "
4075 "for SDL, ignoring option");
4076 }
4077 if (dpy.has_window_close &&
4078 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4079 error_report("-no-quit is only valid for GTK and SDL, "
4080 "ignoring option");
4081 }
4082
4083 qemu_display_early_init(&dpy);
4084 qemu_console_early_init();
4085
4086 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4087 #if defined(CONFIG_OPENGL)
4088 error_report("OpenGL is not supported by the display");
4089 #else
4090 error_report("OpenGL support is disabled");
4091 #endif
4092 exit(1);
4093 }
4094
4095 page_size_init();
4096 socket_init();
4097
4098 qemu_opts_foreach(qemu_find_opts("object"),
4099 user_creatable_add_opts_foreach,
4100 object_create_initial, &error_fatal);
4101
4102 qemu_opts_foreach(qemu_find_opts("chardev"),
4103 chardev_init_func, NULL, &error_fatal);
4104 /* now chardevs have been created we may have semihosting to connect */
4105 qemu_semihosting_connect_chardevs();
4106
4107 #ifdef CONFIG_VIRTFS
4108 qemu_opts_foreach(qemu_find_opts("fsdev"),
4109 fsdev_init_func, NULL, &error_fatal);
4110 #endif
4111
4112 if (qemu_opts_foreach(qemu_find_opts("device"),
4113 device_help_func, NULL, NULL)) {
4114 exit(0);
4115 }
4116
4117 /*
4118 * Note: we need to create block backends before
4119 * machine_set_property(), so machine properties can refer to
4120 * them.
4121 */
4122 configure_blockdev(&bdo_queue, machine_class, snapshot);
4123
4124 machine_opts = qemu_get_machine_opts();
4125 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4126 &error_fatal);
4127
4128 /*
4129 * Note: uses machine properties such as kernel-irqchip, must run
4130 * after machine_set_property().
4131 */
4132 configure_accelerators(argv[0]);
4133
4134 /*
4135 * Beware, QOM objects created before this point miss global and
4136 * compat properties.
4137 *
4138 * Global properties get set up by qdev_prop_register_global(),
4139 * called from user_register_global_props(), and certain option
4140 * desugaring. Also in CPU feature desugaring (buried in
4141 * parse_cpu_option()), which happens below this point, but may
4142 * only target the CPU type, which can only be created after
4143 * parse_cpu_option() returned the type.
4144 *
4145 * Machine compat properties: object_set_machine_compat_props().
4146 * Accelerator compat props: object_set_accelerator_compat_props(),
4147 * called from configure_accelerator().
4148 */
4149
4150 if (!qtest_enabled() && machine_class->deprecation_reason) {
4151 error_report("Machine type '%s' is deprecated: %s",
4152 machine_class->name, machine_class->deprecation_reason);
4153 }
4154
4155 /*
4156 * Note: creates a QOM object, must run only after global and
4157 * compat properties have been set up.
4158 */
4159 migration_object_init();
4160
4161 if (qtest_chrdev) {
4162 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4163 }
4164
4165 machine_opts = qemu_get_machine_opts();
4166 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4167 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4168 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4169 bios_name = qemu_opt_get(machine_opts, "firmware");
4170
4171 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4172 if (opts) {
4173 boot_order = qemu_opt_get(opts, "order");
4174 if (boot_order) {
4175 validate_bootdevices(boot_order, &error_fatal);
4176 }
4177
4178 boot_once = qemu_opt_get(opts, "once");
4179 if (boot_once) {
4180 validate_bootdevices(boot_once, &error_fatal);
4181 }
4182
4183 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4184 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4185 }
4186
4187 if (!boot_order) {
4188 boot_order = machine_class->default_boot_order;
4189 }
4190
4191 if (!kernel_cmdline) {
4192 kernel_cmdline = "";
4193 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4194 }
4195
4196 linux_boot = (kernel_filename != NULL);
4197
4198 if (!linux_boot && *kernel_cmdline != '\0') {
4199 error_report("-append only allowed with -kernel option");
4200 exit(1);
4201 }
4202
4203 if (!linux_boot && initrd_filename != NULL) {
4204 error_report("-initrd only allowed with -kernel option");
4205 exit(1);
4206 }
4207
4208 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4209 /* fall back to the -kernel/-append */
4210 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4211 }
4212
4213 /* spice needs the timers to be initialized by this point */
4214 qemu_spice_init();
4215
4216 cpu_ticks_init();
4217
4218 if (default_net) {
4219 QemuOptsList *net = qemu_find_opts("net");
4220 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4221 #ifdef CONFIG_SLIRP
4222 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4223 #endif
4224 }
4225
4226 if (net_init_clients(&err) < 0) {
4227 error_report_err(err);
4228 exit(1);
4229 }
4230
4231 qemu_opts_foreach(qemu_find_opts("object"),
4232 user_creatable_add_opts_foreach,
4233 object_create_delayed, &error_fatal);
4234
4235 tpm_init();
4236
4237 blk_mig_init();
4238 ram_mig_init();
4239 dirty_bitmap_mig_init();
4240
4241 qemu_opts_foreach(qemu_find_opts("mon"),
4242 mon_init_func, NULL, &error_fatal);
4243
4244 /* connect semihosting console input if requested */
4245 qemu_semihosting_console_init();
4246
4247 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4248 exit(1);
4249 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4250 exit(1);
4251 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4252 exit(1);
4253
4254 /* If no default VGA is requested, the default is "none". */
4255 if (default_vga) {
4256 vga_model = get_default_vga_model(machine_class);
4257 }
4258 if (vga_model) {
4259 select_vgahw(machine_class, vga_model);
4260 }
4261
4262 if (watchdog) {
4263 i = select_watchdog(watchdog);
4264 if (i > 0)
4265 exit (i == 1 ? 1 : 0);
4266 }
4267
4268 /* This checkpoint is required by replay to separate prior clock
4269 reading from the other reads, because timer polling functions query
4270 clock values from the log. */
4271 replay_checkpoint(CHECKPOINT_INIT);
4272 qdev_machine_init();
4273
4274 current_machine->boot_order = boot_order;
4275
4276 /* parse features once if machine provides default cpu_type */
4277 current_machine->cpu_type = machine_class->default_cpu_type;
4278 if (cpu_option) {
4279 current_machine->cpu_type = parse_cpu_option(cpu_option);
4280 }
4281
4282 if (current_machine->ram_memdev_id) {
4283 Object *backend;
4284 ram_addr_t backend_size;
4285
4286 backend = object_resolve_path_type(current_machine->ram_memdev_id,
4287 TYPE_MEMORY_BACKEND, NULL);
4288 backend_size = object_property_get_uint(backend, "size", &error_abort);
4289 if (have_custom_ram_size && backend_size != ram_size) {
4290 error_report("Size specified by -m option must match size of "
4291 "explicitly specified 'memory-backend' property");
4292 exit(EXIT_FAILURE);
4293 }
4294 ram_size = backend_size;
4295 }
4296
4297 if (!xen_enabled()) {
4298 /* On 32-bit hosts, QEMU is limited by virtual address space */
4299 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4300 error_report("at most 2047 MB RAM can be simulated");
4301 exit(1);
4302 }
4303 }
4304
4305 current_machine->ram_size = ram_size;
4306 current_machine->maxram_size = maxram_size;
4307 current_machine->ram_slots = ram_slots;
4308
4309 parse_numa_opts(current_machine);
4310
4311 if (machine_class->default_ram_id && current_machine->ram_size &&
4312 numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
4313 create_default_memdev(current_machine, mem_path);
4314 }
4315 /* do monitor/qmp handling at preconfig state if requested */
4316 qemu_main_loop();
4317
4318 audio_init_audiodevs();
4319
4320 /* from here on runstate is RUN_STATE_PRELAUNCH */
4321 machine_run_board_init(current_machine);
4322
4323 realtime_init();
4324
4325 soundhw_init();
4326
4327 if (hax_enabled()) {
4328 hax_sync_vcpus();
4329 }
4330
4331 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4332 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4333
4334 /* init USB devices */
4335 if (machine_usb(current_machine)) {
4336 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4337 exit(1);
4338 }
4339
4340 /* init generic devices */
4341 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4342 qemu_opts_foreach(qemu_find_opts("device"),
4343 device_init_func, NULL, &error_fatal);
4344
4345 cpu_synchronize_all_post_init();
4346
4347 rom_reset_order_override();
4348
4349 /* Did we create any drives that we failed to create a device for? */
4350 drive_check_orphaned();
4351
4352 /* Don't warn about the default network setup that you get if
4353 * no command line -net or -netdev options are specified. There
4354 * are two cases that we would otherwise complain about:
4355 * (1) board doesn't support a NIC but the implicit "-net nic"
4356 * requested one
4357 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4358 * sets up a nic that isn't connected to anything.
4359 */
4360 if (!default_net && (!qtest_enabled() || has_defaults)) {
4361 net_check_clients();
4362 }
4363
4364 if (boot_once) {
4365 qemu_boot_set(boot_once, &error_fatal);
4366 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4367 }
4368
4369 /* init local displays */
4370 ds = init_displaystate();
4371 qemu_display_init(ds, &dpy);
4372
4373 /* must be after terminal init, SDL library changes signal handlers */
4374 os_setup_signal_handling();
4375
4376 /* init remote displays */
4377 #ifdef CONFIG_VNC
4378 qemu_opts_foreach(qemu_find_opts("vnc"),
4379 vnc_init_func, NULL, &error_fatal);
4380 #endif
4381
4382 if (using_spice) {
4383 qemu_spice_display_init();
4384 }
4385
4386 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4387 exit(1);
4388 }
4389
4390 qdev_machine_creation_done();
4391
4392 /* TODO: once all bus devices are qdevified, this should be done
4393 * when bus is created by qdev.c */
4394 /*
4395 * TODO: If we had a main 'reset container' that the whole system
4396 * lived in, we could reset that using the multi-phase reset
4397 * APIs. For the moment, we just reset the sysbus, which will cause
4398 * all devices hanging off it (and all their child buses, recursively)
4399 * to be reset. Note that this will *not* reset any Device objects
4400 * which are not attached to some part of the qbus tree!
4401 */
4402 qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
4403 qemu_run_machine_init_done_notifiers();
4404
4405 if (rom_check_and_register_reset() != 0) {
4406 error_report("rom check and register reset failed");
4407 exit(1);
4408 }
4409
4410 replay_start();
4411
4412 /* This checkpoint is required by replay to separate prior clock
4413 reading from the other reads, because timer polling functions query
4414 clock values from the log. */
4415 replay_checkpoint(CHECKPOINT_RESET);
4416 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4417 register_global_state();
4418 if (loadvm) {
4419 Error *local_err = NULL;
4420 if (load_snapshot(loadvm, &local_err) < 0) {
4421 error_report_err(local_err);
4422 autostart = 0;
4423 exit(1);
4424 }
4425 }
4426 if (replay_mode != REPLAY_MODE_NONE) {
4427 replay_vmstate_init();
4428 }
4429
4430 qdev_prop_check_globals();
4431 if (vmstate_dump_file) {
4432 /* dump and exit */
4433 dump_vmstate_json_to_file(vmstate_dump_file);
4434 exit(0);
4435 }
4436
4437 if (incoming) {
4438 Error *local_err = NULL;
4439 qemu_start_incoming_migration(incoming, &local_err);
4440 if (local_err) {
4441 error_reportf_err(local_err, "-incoming %s: ", incoming);
4442 exit(1);
4443 }
4444 } else if (autostart) {
4445 vm_start();
4446 }
4447
4448 accel_setup_post(current_machine);
4449 os_setup_post();
4450
4451 return;
4452 }
4453
4454 void qemu_cleanup(void)
4455 {
4456 gdbserver_cleanup();
4457
4458 /*
4459 * cleaning up the migration object cancels any existing migration
4460 * try to do this early so that it also stops using devices.
4461 */
4462 migration_shutdown();
4463
4464 /*
4465 * We must cancel all block jobs while the block layer is drained,
4466 * or cancelling will be affected by throttling and thus may block
4467 * for an extended period of time.
4468 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4469 * it in the drained section.
4470 * We do not need to end this section, because we do not want any
4471 * requests happening from here on anyway.
4472 */
4473 bdrv_drain_all_begin();
4474
4475 /* No more vcpu or device emulation activity beyond this point */
4476 vm_shutdown();
4477 replay_finish();
4478
4479 job_cancel_sync_all();
4480 bdrv_close_all();
4481
4482 res_free();
4483
4484 /* vhost-user must be cleaned up before chardevs. */
4485 tpm_cleanup();
4486 net_cleanup();
4487 audio_cleanup();
4488 monitor_cleanup();
4489 qemu_chr_cleanup();
4490 user_creatable_cleanup();
4491 /* TODO: unref root container, check all devices are ok */
4492 }
Random patches