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Merge tag 'v5.0.0-rc1'
[qemu/ar7.git] / softmmu / vl.c
blob3dec44220f6f3a1c0e931390e159e7ada27c38e1
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "hw/boards.h"
29 #include "hw/qdev-properties.h"
30 #include "qapi/error.h"
31 #include "qemu-version.h"
32 #include "qemu/cutils.h"
33 #include "qemu/help_option.h"
34 #include "qemu/uuid.h"
35 #include "sysemu/reset.h"
36 #include "sysemu/runstate.h"
37 #include "sysemu/seccomp.h"
38 #include "sysemu/tcg.h"
39
40 #include "qemu/error-report.h"
41 #include "qemu/sockets.h"
42 #include "sysemu/accel.h"
43 #include "hw/usb.h"
44 #include "hw/isa/isa.h"
45 #include "hw/scsi/scsi.h"
46 #include "hw/display/vga.h"
47 #include "sysemu/watchdog.h"
48 #include "hw/firmware/smbios.h"
49 #include "hw/acpi/acpi.h"
50 #include "hw/xen/xen.h"
51 #include "hw/loader.h"
52 #include "monitor/qdev.h"
53 #include "net/net.h"
54 #include "net/slirp.h"
55 #include "monitor/monitor.h"
56 #include "ui/console.h"
57 #include "ui/input.h"
58 #include "sysemu/sysemu.h"
59 #include "sysemu/numa.h"
60 #include "sysemu/hostmem.h"
61 #include "exec/gdbstub.h"
62 #include "qemu/timer.h"
63 #include "chardev/char.h"
64 #include "qemu/bitmap.h"
65 #include "qemu/log.h"
66 #include "sysemu/blockdev.h"
67 #include "hw/block/block.h"
68 #include "migration/misc.h"
69 #include "migration/snapshot.h"
70 #include "migration/global_state.h"
71 #include "sysemu/tpm.h"
72 #include "sysemu/dma.h"
73 #include "hw/audio/soundhw.h"
74 #include "audio/audio.h"
75 #include "sysemu/cpus.h"
76 #include "migration/colo.h"
77 #include "migration/postcopy-ram.h"
78 #include "sysemu/kvm.h"
79 #include "sysemu/hax.h"
80 #include "qapi/qobject-input-visitor.h"
81 #include "qemu/option.h"
82 #include "qemu/config-file.h"
83 #include "qemu-options.h"
84 #include "qemu/main-loop.h"
85 #ifdef CONFIG_VIRTFS
86 #include "fsdev/qemu-fsdev.h"
87 #endif
88 #include "sysemu/qtest.h"
89
90 #include "disas/disas.h"
91
92 #include "trace-root.h"
93 #include "trace/control.h"
94 #include "qemu/plugin.h"
95 #include "qemu/queue.h"
96 #include "sysemu/arch_init.h"
97
98 #include "ui/qemu-spice.h"
99 #include "qapi/string-input-visitor.h"
100 #include "qapi/opts-visitor.h"
101 #include "qapi/clone-visitor.h"
102 #include "qom/object_interfaces.h"
103 #include "hw/semihosting/semihost.h"
104 #include "crypto/init.h"
105 #include "sysemu/replay.h"
106 #include "qapi/qapi-events-run-state.h"
107 #include "qapi/qapi-visit-block-core.h"
108 #include "qapi/qapi-visit-ui.h"
109 #include "qapi/qapi-commands-block-core.h"
110 #include "qapi/qapi-commands-run-state.h"
111 #include "qapi/qapi-commands-ui.h"
112 #include "qapi/qmp/qerror.h"
113 #include "sysemu/iothread.h"
114 #include "qemu/guest-random.h"
115
116 #define MAX_VIRTIO_CONSOLES 1
117
118 static const char *data_dir[16];
119 static int data_dir_idx;
120 const char *bios_name = NULL;
121 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
122 int display_opengl;
123 const char* keyboard_layout = NULL;
124 ram_addr_t ram_size;
125 bool enable_mlock = false;
126 bool enable_cpu_pm = false;
127 int nb_nics;
128 NICInfo nd_table[MAX_NICS];
129 int autostart;
130 static enum {
131 RTC_BASE_UTC,
132 RTC_BASE_LOCALTIME,
133 RTC_BASE_DATETIME,
134 } rtc_base_type = RTC_BASE_UTC;
135 static time_t rtc_ref_start_datetime;
136 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
137 static int rtc_host_datetime_offset = -1; /* valid & used only with
138 RTC_BASE_DATETIME */
139 QEMUClockType rtc_clock;
140 int vga_interface_type = VGA_NONE;
141 static DisplayOptions dpy;
142 static int num_serial_hds;
143 static Chardev **serial_hds;
144 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
145 int win2k_install_hack = 0;
146 int singlestep = 0;
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 /* Trace unassigned memory or i/o accesses. */
176 bool trace_unassigned;
177
178 static NotifierList exit_notifiers =
179 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
180
181 static NotifierList machine_init_done_notifiers =
182 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
183
184 bool xen_allowed;
185 uint32_t xen_domid;
186 enum xen_mode xen_mode = XEN_EMULATE;
187 bool xen_domid_restrict;
188
189 static int has_defaults = 1;
190 static int default_serial = 1;
191 static int default_parallel = 1;
192 static int default_monitor = 1;
193 static int default_floppy = 1;
194 static int default_cdrom = 1;
195 static int default_sdcard = 1;
196 static int default_vga = 1;
197 static int default_net = 1;
198
199 static struct {
200 const char *driver;
201 int *flag;
202 } default_list[] = {
203 { .driver = "isa-serial", .flag = &default_serial },
204 { .driver = "isa-parallel", .flag = &default_parallel },
205 { .driver = "isa-fdc", .flag = &default_floppy },
206 { .driver = "floppy", .flag = &default_floppy },
207 { .driver = "ide-cd", .flag = &default_cdrom },
208 { .driver = "ide-hd", .flag = &default_cdrom },
209 { .driver = "ide-drive", .flag = &default_cdrom },
210 { .driver = "scsi-cd", .flag = &default_cdrom },
211 { .driver = "scsi-hd", .flag = &default_cdrom },
212 { .driver = "VGA", .flag = &default_vga },
213 { .driver = "isa-vga", .flag = &default_vga },
214 { .driver = "cirrus-vga", .flag = &default_vga },
215 { .driver = "isa-cirrus-vga", .flag = &default_vga },
216 { .driver = "vmware-svga", .flag = &default_vga },
217 { .driver = "qxl-vga", .flag = &default_vga },
218 { .driver = "virtio-vga", .flag = &default_vga },
219 { .driver = "ati-vga", .flag = &default_vga },
220 { .driver = "vhost-user-vga", .flag = &default_vga },
221 };
222
223 static QemuOptsList qemu_rtc_opts = {
224 .name = "rtc",
225 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
226 .merge_lists = true,
227 .desc = {
228 {
229 .name = "base",
230 .type = QEMU_OPT_STRING,
231 },{
232 .name = "clock",
233 .type = QEMU_OPT_STRING,
234 },{
235 .name = "driftfix",
236 .type = QEMU_OPT_STRING,
237 },
238 { /* end of list */ }
239 },
240 };
241
242 static QemuOptsList qemu_option_rom_opts = {
243 .name = "option-rom",
244 .implied_opt_name = "romfile",
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
246 .desc = {
247 {
248 .name = "bootindex",
249 .type = QEMU_OPT_NUMBER,
250 }, {
251 .name = "romfile",
252 .type = QEMU_OPT_STRING,
253 },
254 { /* end of list */ }
255 },
256 };
257
258 static QemuOptsList qemu_machine_opts = {
259 .name = "machine",
260 .implied_opt_name = "type",
261 .merge_lists = true,
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
263 .desc = {
264 /*
265 * no elements => accept any
266 * sanity checking will happen later
267 * when setting machine properties
268 */
269 { }
270 },
271 };
272
273 static QemuOptsList qemu_accel_opts = {
274 .name = "accel",
275 .implied_opt_name = "accel",
276 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
277 .desc = {
278 /*
279 * no elements => accept any
280 * sanity checking will happen later
281 * when setting accelerator properties
282 */
283 { }
284 },
285 };
286
287 static QemuOptsList qemu_boot_opts = {
288 .name = "boot-opts",
289 .implied_opt_name = "order",
290 .merge_lists = true,
291 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
292 .desc = {
293 {
294 .name = "order",
295 .type = QEMU_OPT_STRING,
296 }, {
297 .name = "once",
298 .type = QEMU_OPT_STRING,
299 }, {
300 .name = "menu",
301 .type = QEMU_OPT_BOOL,
302 }, {
303 .name = "splash",
304 .type = QEMU_OPT_STRING,
305 }, {
306 .name = "splash-time",
307 .type = QEMU_OPT_NUMBER,
308 }, {
309 .name = "reboot-timeout",
310 .type = QEMU_OPT_NUMBER,
311 }, {
312 .name = "strict",
313 .type = QEMU_OPT_BOOL,
314 },
315 { /*End of list */ }
316 },
317 };
318
319 static QemuOptsList qemu_add_fd_opts = {
320 .name = "add-fd",
321 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
322 .desc = {
323 {
324 .name = "fd",
325 .type = QEMU_OPT_NUMBER,
326 .help = "file descriptor of which a duplicate is added to fd set",
327 },{
328 .name = "set",
329 .type = QEMU_OPT_NUMBER,
330 .help = "ID of the fd set to add fd to",
331 },{
332 .name = "opaque",
333 .type = QEMU_OPT_STRING,
334 .help = "free-form string used to describe fd",
335 },
336 { /* end of list */ }
337 },
338 };
339
340 static QemuOptsList qemu_object_opts = {
341 .name = "object",
342 .implied_opt_name = "qom-type",
343 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
344 .desc = {
345 { }
346 },
347 };
348
349 static QemuOptsList qemu_tpmdev_opts = {
350 .name = "tpmdev",
351 .implied_opt_name = "type",
352 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
353 .desc = {
354 /* options are defined in the TPM backends */
355 { /* end of list */ }
356 },
357 };
358
359 static QemuOptsList qemu_realtime_opts = {
360 .name = "realtime",
361 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
362 .desc = {
363 {
364 .name = "mlock",
365 .type = QEMU_OPT_BOOL,
366 },
367 { /* end of list */ }
368 },
369 };
370
371 static QemuOptsList qemu_overcommit_opts = {
372 .name = "overcommit",
373 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
374 .desc = {
375 {
376 .name = "mem-lock",
377 .type = QEMU_OPT_BOOL,
378 },
379 {
380 .name = "cpu-pm",
381 .type = QEMU_OPT_BOOL,
382 },
383 { /* end of list */ }
384 },
385 };
386
387 static QemuOptsList qemu_msg_opts = {
388 .name = "msg",
389 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
390 .desc = {
391 {
392 .name = "timestamp",
393 .type = QEMU_OPT_BOOL,
394 },
395 { /* end of list */ }
396 },
397 };
398
399 static QemuOptsList qemu_name_opts = {
400 .name = "name",
401 .implied_opt_name = "guest",
402 .merge_lists = true,
403 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
404 .desc = {
405 {
406 .name = "guest",
407 .type = QEMU_OPT_STRING,
408 .help = "Sets the name of the guest.\n"
409 "This name will be displayed in the SDL window caption.\n"
410 "The name will also be used for the VNC server",
411 }, {
412 .name = "process",
413 .type = QEMU_OPT_STRING,
414 .help = "Sets the name of the QEMU process, as shown in top etc",
415 }, {
416 .name = "debug-threads",
417 .type = QEMU_OPT_BOOL,
418 .help = "When enabled, name the individual threads; defaults off.\n"
419 "NOTE: The thread names are for debugging and not a\n"
420 "stable API.",
421 },
422 { /* End of list */ }
423 },
424 };
425
426 static QemuOptsList qemu_mem_opts = {
427 .name = "memory",
428 .implied_opt_name = "size",
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
430 .merge_lists = true,
431 .desc = {
432 {
433 .name = "size",
434 .type = QEMU_OPT_SIZE,
435 },
436 {
437 .name = "slots",
438 .type = QEMU_OPT_NUMBER,
439 },
440 {
441 .name = "maxmem",
442 .type = QEMU_OPT_SIZE,
443 },
444 { /* end of list */ }
445 },
446 };
447
448 static QemuOptsList qemu_icount_opts = {
449 .name = "icount",
450 .implied_opt_name = "shift",
451 .merge_lists = true,
452 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
453 .desc = {
454 {
455 .name = "shift",
456 .type = QEMU_OPT_STRING,
457 }, {
458 .name = "align",
459 .type = QEMU_OPT_BOOL,
460 }, {
461 .name = "sleep",
462 .type = QEMU_OPT_BOOL,
463 }, {
464 .name = "rr",
465 .type = QEMU_OPT_STRING,
466 }, {
467 .name = "rrfile",
468 .type = QEMU_OPT_STRING,
469 }, {
470 .name = "rrsnapshot",
471 .type = QEMU_OPT_STRING,
472 },
473 { /* end of list */ }
474 },
475 };
476
477 static QemuOptsList qemu_fw_cfg_opts = {
478 .name = "fw_cfg",
479 .implied_opt_name = "name",
480 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
481 .desc = {
482 {
483 .name = "name",
484 .type = QEMU_OPT_STRING,
485 .help = "Sets the fw_cfg name of the blob to be inserted",
486 }, {
487 .name = "file",
488 .type = QEMU_OPT_STRING,
489 .help = "Sets the name of the file from which "
490 "the fw_cfg blob will be loaded",
491 }, {
492 .name = "string",
493 .type = QEMU_OPT_STRING,
494 .help = "Sets content of the blob to be inserted from a string",
495 },
496 { /* end of list */ }
497 },
498 };
499
500 /**
501 * Get machine options
502 *
503 * Returns: machine options (never null).
504 */
505 QemuOpts *qemu_get_machine_opts(void)
506 {
507 return qemu_find_opts_singleton("machine");
508 }
509
510 const char *qemu_get_vm_name(void)
511 {
512 return qemu_name;
513 }
514
515 static void res_free(void)
516 {
517 g_free(boot_splash_filedata);
518 boot_splash_filedata = NULL;
519 }
520
521 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
522 {
523 const char *driver = qemu_opt_get(opts, "driver");
524 int i;
525
526 if (!driver)
527 return 0;
528 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
529 if (strcmp(default_list[i].driver, driver) != 0)
530 continue;
531 *(default_list[i].flag) = 0;
532 }
533 return 0;
534 }
535
536 /***********************************************************/
537 /* QEMU state */
538
539 static RunState current_run_state = RUN_STATE_PRECONFIG;
540
541 /* We use RUN_STATE__MAX but any invalid value will do */
542 static RunState vmstop_requested = RUN_STATE__MAX;
543 static QemuMutex vmstop_lock;
544
545 typedef struct {
546 RunState from;
547 RunState to;
548 } RunStateTransition;
549
550 static const RunStateTransition runstate_transitions_def[] = {
551 /* from -> to */
552 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
553 /* Early switch to inmigrate state to allow -incoming CLI option work
554 * as it used to. TODO: delay actual switching to inmigrate state to
555 * the point after machine is built and remove this hack.
556 */
557 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
558
559 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
560 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
561 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
562
563 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
564 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
565 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
566 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
567 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
568 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
569 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
570 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
571 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
572 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
573 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
574 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
575
576 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
577 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
578 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
579
580 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
581 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
582 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
583
584 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
585 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
586 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
587 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
588 { RUN_STATE_PAUSED, RUN_STATE_COLO},
589
590 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
591 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
592 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
593
594 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
595 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
596 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
597
598 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
599 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
600 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
601 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
602 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
603
604 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
605 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
606
607 { RUN_STATE_COLO, RUN_STATE_RUNNING },
608
609 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
610 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
611 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
612 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
613 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
614 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
615 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
616 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
617 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
618 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
619 { RUN_STATE_RUNNING, RUN_STATE_COLO},
620
621 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
622
623 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
624 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
625 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
626
627 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
628 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
629 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
630 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
632 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
633
634 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
635 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
636 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
637 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
638
639 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
640 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
641 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
642
643 { RUN_STATE__MAX, RUN_STATE__MAX },
644 };
645
646 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
647
648 bool runstate_check(RunState state)
649 {
650 return current_run_state == state;
651 }
652
653 bool runstate_store(char *str, size_t size)
654 {
655 const char *state = RunState_str(current_run_state);
656 size_t len = strlen(state) + 1;
657
658 if (len > size) {
659 return false;
660 }
661 memcpy(str, state, len);
662 return true;
663 }
664
665 static void runstate_init(void)
666 {
667 const RunStateTransition *p;
668
669 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
670 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
671 runstate_valid_transitions[p->from][p->to] = true;
672 }
673
674 qemu_mutex_init(&vmstop_lock);
675 }
676
677 /* This function will abort() on invalid state transitions */
678 void runstate_set(RunState new_state)
679 {
680 assert(new_state < RUN_STATE__MAX);
681
682 trace_runstate_set(current_run_state, RunState_str(current_run_state),
683 new_state, RunState_str(new_state));
684
685 if (current_run_state == new_state) {
686 return;
687 }
688
689 if (!runstate_valid_transitions[current_run_state][new_state]) {
690 error_report("invalid runstate transition: '%s' -> '%s'",
691 RunState_str(current_run_state),
692 RunState_str(new_state));
693 abort();
694 }
695
696 current_run_state = new_state;
697 }
698
699 int runstate_is_running(void)
700 {
701 return runstate_check(RUN_STATE_RUNNING);
702 }
703
704 bool runstate_needs_reset(void)
705 {
706 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
707 runstate_check(RUN_STATE_SHUTDOWN);
708 }
709
710 StatusInfo *qmp_query_status(Error **errp)
711 {
712 StatusInfo *info = g_malloc0(sizeof(*info));
713
714 info->running = runstate_is_running();
715 info->singlestep = singlestep;
716 info->status = current_run_state;
717
718 return info;
719 }
720
721 bool qemu_vmstop_requested(RunState *r)
722 {
723 qemu_mutex_lock(&vmstop_lock);
724 *r = vmstop_requested;
725 vmstop_requested = RUN_STATE__MAX;
726 qemu_mutex_unlock(&vmstop_lock);
727 return *r < RUN_STATE__MAX;
728 }
729
730 void qemu_system_vmstop_request_prepare(void)
731 {
732 qemu_mutex_lock(&vmstop_lock);
733 }
734
735 void qemu_system_vmstop_request(RunState state)
736 {
737 vmstop_requested = state;
738 qemu_mutex_unlock(&vmstop_lock);
739 qemu_notify_event();
740 }
741
742 /***********************************************************/
743 /* RTC reference time/date access */
744 static time_t qemu_ref_timedate(QEMUClockType clock)
745 {
746 time_t value = qemu_clock_get_ms(clock) / 1000;
747 switch (clock) {
748 case QEMU_CLOCK_REALTIME:
749 value -= rtc_realtime_clock_offset;
750 /* fall through */
751 case QEMU_CLOCK_VIRTUAL:
752 value += rtc_ref_start_datetime;
753 break;
754 case QEMU_CLOCK_HOST:
755 if (rtc_base_type == RTC_BASE_DATETIME) {
756 value -= rtc_host_datetime_offset;
757 }
758 break;
759 default:
760 assert(0);
761 }
762 return value;
763 }
764
765 void qemu_get_timedate(struct tm *tm, int offset)
766 {
767 time_t ti = qemu_ref_timedate(rtc_clock);
768
769 ti += offset;
770
771 switch (rtc_base_type) {
772 case RTC_BASE_DATETIME:
773 case RTC_BASE_UTC:
774 gmtime_r(&ti, tm);
775 break;
776 case RTC_BASE_LOCALTIME:
777 localtime_r(&ti, tm);
778 break;
779 }
780 }
781
782 int qemu_timedate_diff(struct tm *tm)
783 {
784 time_t seconds;
785
786 switch (rtc_base_type) {
787 case RTC_BASE_DATETIME:
788 case RTC_BASE_UTC:
789 seconds = mktimegm(tm);
790 break;
791 case RTC_BASE_LOCALTIME:
792 {
793 struct tm tmp = *tm;
794 tmp.tm_isdst = -1; /* use timezone to figure it out */
795 seconds = mktime(&tmp);
796 break;
797 }
798 default:
799 abort();
800 }
801
802 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
803 }
804
805 static void configure_rtc_base_datetime(const char *startdate)
806 {
807 time_t rtc_start_datetime;
808 struct tm tm;
809
810 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
811 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
812 /* OK */
813 } else if (sscanf(startdate, "%d-%d-%d",
814 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
815 tm.tm_hour = 0;
816 tm.tm_min = 0;
817 tm.tm_sec = 0;
818 } else {
819 goto date_fail;
820 }
821 tm.tm_year -= 1900;
822 tm.tm_mon--;
823 rtc_start_datetime = mktimegm(&tm);
824 if (rtc_start_datetime == -1) {
825 date_fail:
826 error_report("invalid datetime format");
827 error_printf("valid formats: "
828 "'2006-06-17T16:01:21' or '2006-06-17'\n");
829 exit(1);
830 }
831 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
832 rtc_ref_start_datetime = rtc_start_datetime;
833 }
834
835 static void configure_rtc(QemuOpts *opts)
836 {
837 const char *value;
838
839 /* Set defaults */
840 rtc_clock = QEMU_CLOCK_HOST;
841 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
842 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
843
844 value = qemu_opt_get(opts, "base");
845 if (value) {
846 if (!strcmp(value, "utc")) {
847 rtc_base_type = RTC_BASE_UTC;
848 } else if (!strcmp(value, "localtime")) {
849 Error *blocker = NULL;
850 rtc_base_type = RTC_BASE_LOCALTIME;
851 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
852 "-rtc base=localtime");
853 replay_add_blocker(blocker);
854 } else {
855 rtc_base_type = RTC_BASE_DATETIME;
856 configure_rtc_base_datetime(value);
857 }
858 }
859 value = qemu_opt_get(opts, "clock");
860 if (value) {
861 if (!strcmp(value, "host")) {
862 rtc_clock = QEMU_CLOCK_HOST;
863 } else if (!strcmp(value, "rt")) {
864 rtc_clock = QEMU_CLOCK_REALTIME;
865 } else if (!strcmp(value, "vm")) {
866 rtc_clock = QEMU_CLOCK_VIRTUAL;
867 } else {
868 error_report("invalid option value '%s'", value);
869 exit(1);
870 }
871 }
872 value = qemu_opt_get(opts, "driftfix");
873 if (value) {
874 if (!strcmp(value, "slew")) {
875 object_register_sugar_prop("mc146818rtc",
876 "lost_tick_policy",
877 "slew");
878 } else if (!strcmp(value, "none")) {
879 /* discard is default */
880 } else {
881 error_report("invalid option value '%s'", value);
882 exit(1);
883 }
884 }
885 }
886
887 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
888 {
889 const char *proc_name;
890
891 if (qemu_opt_get(opts, "debug-threads")) {
892 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
893 }
894 qemu_name = qemu_opt_get(opts, "guest");
895
896 proc_name = qemu_opt_get(opts, "process");
897 if (proc_name) {
898 os_set_proc_name(proc_name);
899 }
900
901 return 0;
902 }
903
904 bool defaults_enabled(void)
905 {
906 return has_defaults;
907 }
908
909 #ifndef _WIN32
910 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
911 {
912 int fd, dupfd, flags;
913 int64_t fdset_id;
914 const char *fd_opaque = NULL;
915 AddfdInfo *fdinfo;
916
917 fd = qemu_opt_get_number(opts, "fd", -1);
918 fdset_id = qemu_opt_get_number(opts, "set", -1);
919 fd_opaque = qemu_opt_get(opts, "opaque");
920
921 if (fd < 0) {
922 error_setg(errp, "fd option is required and must be non-negative");
923 return -1;
924 }
925
926 if (fd <= STDERR_FILENO) {
927 error_setg(errp, "fd cannot be a standard I/O stream");
928 return -1;
929 }
930
931 /*
932 * All fds inherited across exec() necessarily have FD_CLOEXEC
933 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
934 */
935 flags = fcntl(fd, F_GETFD);
936 if (flags == -1 || (flags & FD_CLOEXEC)) {
937 error_setg(errp, "fd is not valid or already in use");
938 return -1;
939 }
940
941 if (fdset_id < 0) {
942 error_setg(errp, "set option is required and must be non-negative");
943 return -1;
944 }
945
946 #ifdef F_DUPFD_CLOEXEC
947 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
948 #else
949 dupfd = dup(fd);
950 if (dupfd != -1) {
951 qemu_set_cloexec(dupfd);
952 }
953 #endif
954 if (dupfd == -1) {
955 error_setg(errp, "error duplicating fd: %s", strerror(errno));
956 return -1;
957 }
958
959 /* add the duplicate fd, and optionally the opaque string, to the fd set */
960 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
961 &error_abort);
962 g_free(fdinfo);
963
964 return 0;
965 }
966
967 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
968 {
969 int fd;
970
971 fd = qemu_opt_get_number(opts, "fd", -1);
972 close(fd);
973
974 return 0;
975 }
976 #endif
977
978 /***********************************************************/
979 /* QEMU Block devices */
980
981 #define HD_OPTS "media=disk"
982 #define CDROM_OPTS "media=cdrom"
983 #define FD_OPTS ""
984 #define PFLASH_OPTS ""
985 #define MTD_OPTS ""
986 #define SD_OPTS ""
987
988 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
989 {
990 BlockInterfaceType *block_default_type = opaque;
991
992 return drive_new(opts, *block_default_type, errp) == NULL;
993 }
994
995 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
996 {
997 if (qemu_opt_get(opts, "snapshot") == NULL) {
998 qemu_opt_set(opts, "snapshot", "on", &error_abort);
999 }
1000 return 0;
1001 }
1002
1003 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1004 int index, const char *optstr)
1005 {
1006 QemuOpts *opts;
1007 DriveInfo *dinfo;
1008
1009 if (!enable || drive_get_by_index(type, index)) {
1010 return;
1011 }
1012
1013 opts = drive_add(type, index, NULL, optstr);
1014 if (snapshot) {
1015 drive_enable_snapshot(NULL, opts, NULL);
1016 }
1017
1018 dinfo = drive_new(opts, type, &error_abort);
1019 dinfo->is_default = true;
1020
1021 }
1022
1023 typedef struct BlockdevOptionsQueueEntry {
1024 BlockdevOptions *bdo;
1025 Location loc;
1026 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1027 } BlockdevOptionsQueueEntry;
1028
1029 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1030
1031 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1032 MachineClass *machine_class, int snapshot)
1033 {
1034 /*
1035 * If the currently selected machine wishes to override the
1036 * units-per-bus property of its default HBA interface type, do so
1037 * now.
1038 */
1039 if (machine_class->units_per_default_bus) {
1040 override_max_devs(machine_class->block_default_type,
1041 machine_class->units_per_default_bus);
1042 }
1043
1044 /* open the virtual block devices */
1045 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1046 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1047
1048 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1049 loc_push_restore(&bdo->loc);
1050 qmp_blockdev_add(bdo->bdo, &error_fatal);
1051 loc_pop(&bdo->loc);
1052 qapi_free_BlockdevOptions(bdo->bdo);
1053 g_free(bdo);
1054 }
1055 if (snapshot) {
1056 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1057 NULL, NULL);
1058 }
1059 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1060 &machine_class->block_default_type, &error_fatal)) {
1061 /* We printed help */
1062 exit(0);
1063 }
1064
1065 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1066 CDROM_OPTS);
1067 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1068 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1069
1070 }
1071
1072 static QemuOptsList qemu_smp_opts = {
1073 .name = "smp-opts",
1074 .implied_opt_name = "cpus",
1075 .merge_lists = true,
1076 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1077 .desc = {
1078 {
1079 .name = "cpus",
1080 .type = QEMU_OPT_NUMBER,
1081 }, {
1082 .name = "sockets",
1083 .type = QEMU_OPT_NUMBER,
1084 }, {
1085 .name = "dies",
1086 .type = QEMU_OPT_NUMBER,
1087 }, {
1088 .name = "cores",
1089 .type = QEMU_OPT_NUMBER,
1090 }, {
1091 .name = "threads",
1092 .type = QEMU_OPT_NUMBER,
1093 }, {
1094 .name = "maxcpus",
1095 .type = QEMU_OPT_NUMBER,
1096 },
1097 { /*End of list */ }
1098 },
1099 };
1100
1101 static void realtime_init(void)
1102 {
1103 if (enable_mlock) {
1104 if (os_mlock() < 0) {
1105 error_report("locking memory failed");
1106 exit(1);
1107 }
1108 }
1109 }
1110
1111
1112 static void configure_msg(QemuOpts *opts)
1113 {
1114 error_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
1115 }
1116
1117
1118 /***********************************************************/
1119 /* USB devices */
1120
1121 static int usb_device_add(const char *devname)
1122 {
1123 USBDevice *dev = NULL;
1124
1125 if (!machine_usb(current_machine)) {
1126 return -1;
1127 }
1128
1129 dev = usbdevice_create(devname);
1130 if (!dev)
1131 return -1;
1132
1133 return 0;
1134 }
1135
1136 static int usb_parse(const char *cmdline)
1137 {
1138 int r;
1139 r = usb_device_add(cmdline);
1140 if (r < 0) {
1141 error_report("could not add USB device '%s'", cmdline);
1142 }
1143 return r;
1144 }
1145
1146 /***********************************************************/
1147 /* machine registration */
1148
1149 MachineState *current_machine;
1150
1151 static MachineClass *find_machine(const char *name, GSList *machines)
1152 {
1153 GSList *el;
1154
1155 for (el = machines; el; el = el->next) {
1156 MachineClass *mc = el->data;
1157
1158 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1159 return mc;
1160 }
1161 }
1162
1163 return NULL;
1164 }
1165
1166 static MachineClass *find_default_machine(GSList *machines)
1167 {
1168 GSList *el;
1169 MachineClass *default_machineclass = NULL;
1170
1171 for (el = machines; el; el = el->next) {
1172 MachineClass *mc = el->data;
1173
1174 if (mc->is_default) {
1175 assert(default_machineclass == NULL && "Multiple default machines");
1176 default_machineclass = mc;
1177 }
1178 }
1179
1180 return default_machineclass;
1181 }
1182
1183 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1184 {
1185 ObjectProperty *prop;
1186 ObjectPropertyIterator iter;
1187
1188 if (!qemu_opt_has_help_opt(opts)) {
1189 return 0;
1190 }
1191
1192 object_property_iter_init(&iter, OBJECT(machine));
1193 while ((prop = object_property_iter_next(&iter))) {
1194 if (!prop->set) {
1195 continue;
1196 }
1197
1198 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1199 prop->name, prop->type);
1200 if (prop->description) {
1201 printf(" (%s)\n", prop->description);
1202 } else {
1203 printf("\n");
1204 }
1205 }
1206
1207 return 1;
1208 }
1209
1210 struct VMChangeStateEntry {
1211 VMChangeStateHandler *cb;
1212 void *opaque;
1213 QTAILQ_ENTRY(VMChangeStateEntry) entries;
1214 int priority;
1215 };
1216
1217 static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head;
1218
1219 /**
1220 * qemu_add_vm_change_state_handler_prio:
1221 * @cb: the callback to invoke
1222 * @opaque: user data passed to the callback
1223 * @priority: low priorities execute first when the vm runs and the reverse is
1224 * true when the vm stops
1225 *
1226 * Register a callback function that is invoked when the vm starts or stops
1227 * running.
1228 *
1229 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1230 */
1231 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1232 VMChangeStateHandler *cb, void *opaque, int priority)
1233 {
1234 VMChangeStateEntry *e;
1235 VMChangeStateEntry *other;
1236
1237 e = g_malloc0(sizeof(*e));
1238 e->cb = cb;
1239 e->opaque = opaque;
1240 e->priority = priority;
1241
1242 /* Keep list sorted in ascending priority order */
1243 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1244 if (priority < other->priority) {
1245 QTAILQ_INSERT_BEFORE(other, e, entries);
1246 return e;
1247 }
1248 }
1249
1250 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1251 return e;
1252 }
1253
1254 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1255 void *opaque)
1256 {
1257 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1258 }
1259
1260 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1261 {
1262 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1263 g_free(e);
1264 }
1265
1266 void vm_state_notify(int running, RunState state)
1267 {
1268 VMChangeStateEntry *e, *next;
1269
1270 trace_vm_state_notify(running, state, RunState_str(state));
1271
1272 if (running) {
1273 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1274 e->cb(e->opaque, running, state);
1275 }
1276 } else {
1277 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1278 e->cb(e->opaque, running, state);
1279 }
1280 }
1281 }
1282
1283 static ShutdownCause reset_requested;
1284 static ShutdownCause shutdown_requested;
1285 static int shutdown_signal;
1286 static pid_t shutdown_pid;
1287 static int powerdown_requested;
1288 static int debug_requested;
1289 static int suspend_requested;
1290 static bool preconfig_exit_requested = true;
1291 static WakeupReason wakeup_reason;
1292 static NotifierList powerdown_notifiers =
1293 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1294 static NotifierList suspend_notifiers =
1295 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1296 static NotifierList wakeup_notifiers =
1297 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1298 static NotifierList shutdown_notifiers =
1299 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1300 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1301
1302 ShutdownCause qemu_shutdown_requested_get(void)
1303 {
1304 return shutdown_requested;
1305 }
1306
1307 ShutdownCause qemu_reset_requested_get(void)
1308 {
1309 return reset_requested;
1310 }
1311
1312 static int qemu_shutdown_requested(void)
1313 {
1314 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1315 }
1316
1317 static void qemu_kill_report(void)
1318 {
1319 if (!qtest_driver() && shutdown_signal) {
1320 if (shutdown_pid == 0) {
1321 /* This happens for eg ^C at the terminal, so it's worth
1322 * avoiding printing an odd message in that case.
1323 */
1324 error_report("terminating on signal %d", shutdown_signal);
1325 } else {
1326 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1327
1328 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1329 shutdown_signal, shutdown_pid,
1330 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1331 g_free(shutdown_cmd);
1332 }
1333 shutdown_signal = 0;
1334 }
1335 }
1336
1337 static ShutdownCause qemu_reset_requested(void)
1338 {
1339 ShutdownCause r = reset_requested;
1340
1341 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1342 reset_requested = SHUTDOWN_CAUSE_NONE;
1343 return r;
1344 }
1345 return SHUTDOWN_CAUSE_NONE;
1346 }
1347
1348 static int qemu_suspend_requested(void)
1349 {
1350 int r = suspend_requested;
1351 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1352 suspend_requested = 0;
1353 return r;
1354 }
1355 return false;
1356 }
1357
1358 static WakeupReason qemu_wakeup_requested(void)
1359 {
1360 return wakeup_reason;
1361 }
1362
1363 static int qemu_powerdown_requested(void)
1364 {
1365 int r = powerdown_requested;
1366 powerdown_requested = 0;
1367 return r;
1368 }
1369
1370 static int qemu_debug_requested(void)
1371 {
1372 int r = debug_requested;
1373 debug_requested = 0;
1374 return r;
1375 }
1376
1377 void qemu_exit_preconfig_request(void)
1378 {
1379 preconfig_exit_requested = true;
1380 }
1381
1382 /*
1383 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1384 */
1385 void qemu_system_reset(ShutdownCause reason)
1386 {
1387 MachineClass *mc;
1388
1389 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1390
1391 cpu_synchronize_all_states();
1392
1393 if (mc && mc->reset) {
1394 mc->reset(current_machine);
1395 } else {
1396 qemu_devices_reset();
1397 }
1398 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1399 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1400 }
1401 cpu_synchronize_all_post_reset();
1402 }
1403
1404 /*
1405 * Wake the VM after suspend.
1406 */
1407 static void qemu_system_wakeup(void)
1408 {
1409 MachineClass *mc;
1410
1411 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1412
1413 if (mc && mc->wakeup) {
1414 mc->wakeup(current_machine);
1415 }
1416 }
1417
1418 void qemu_system_guest_panicked(GuestPanicInformation *info)
1419 {
1420 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1421
1422 if (current_cpu) {
1423 current_cpu->crash_occurred = true;
1424 }
1425 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1426 !!info, info);
1427 vm_stop(RUN_STATE_GUEST_PANICKED);
1428 if (!no_shutdown) {
1429 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1430 !!info, info);
1431 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1432 }
1433
1434 if (info) {
1435 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1436 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1437 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1438 info->u.hyper_v.arg1,
1439 info->u.hyper_v.arg2,
1440 info->u.hyper_v.arg3,
1441 info->u.hyper_v.arg4,
1442 info->u.hyper_v.arg5);
1443 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1444 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1445 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1446 info->u.s390.core,
1447 S390CrashReason_str(info->u.s390.reason),
1448 info->u.s390.psw_mask,
1449 info->u.s390.psw_addr);
1450 }
1451 qapi_free_GuestPanicInformation(info);
1452 }
1453 }
1454
1455 void qemu_system_guest_crashloaded(GuestPanicInformation *info)
1456 {
1457 qemu_log_mask(LOG_GUEST_ERROR, "Guest crash loaded");
1458
1459 qapi_event_send_guest_crashloaded(GUEST_PANIC_ACTION_RUN,
1460 !!info, info);
1461
1462 if (info) {
1463 qapi_free_GuestPanicInformation(info);
1464 }
1465 }
1466
1467 void qemu_system_reset_request(ShutdownCause reason)
1468 {
1469 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1470 shutdown_requested = reason;
1471 } else {
1472 reset_requested = reason;
1473 }
1474 cpu_stop_current();
1475 qemu_notify_event();
1476 }
1477
1478 static void qemu_system_suspend(void)
1479 {
1480 pause_all_vcpus();
1481 notifier_list_notify(&suspend_notifiers, NULL);
1482 runstate_set(RUN_STATE_SUSPENDED);
1483 qapi_event_send_suspend();
1484 }
1485
1486 void qemu_system_suspend_request(void)
1487 {
1488 if (runstate_check(RUN_STATE_SUSPENDED)) {
1489 return;
1490 }
1491 suspend_requested = 1;
1492 cpu_stop_current();
1493 qemu_notify_event();
1494 }
1495
1496 void qemu_register_suspend_notifier(Notifier *notifier)
1497 {
1498 notifier_list_add(&suspend_notifiers, notifier);
1499 }
1500
1501 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1502 {
1503 trace_system_wakeup_request(reason);
1504
1505 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1506 error_setg(errp,
1507 "Unable to wake up: guest is not in suspended state");
1508 return;
1509 }
1510 if (!(wakeup_reason_mask & (1 << reason))) {
1511 return;
1512 }
1513 runstate_set(RUN_STATE_RUNNING);
1514 wakeup_reason = reason;
1515 qemu_notify_event();
1516 }
1517
1518 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1519 {
1520 if (enabled) {
1521 wakeup_reason_mask |= (1 << reason);
1522 } else {
1523 wakeup_reason_mask &= ~(1 << reason);
1524 }
1525 }
1526
1527 void qemu_register_wakeup_notifier(Notifier *notifier)
1528 {
1529 notifier_list_add(&wakeup_notifiers, notifier);
1530 }
1531
1532 void qemu_register_wakeup_support(void)
1533 {
1534 wakeup_suspend_enabled = true;
1535 }
1536
1537 bool qemu_wakeup_suspend_enabled(void)
1538 {
1539 return wakeup_suspend_enabled;
1540 }
1541
1542 void qemu_system_killed(int signal, pid_t pid)
1543 {
1544 shutdown_signal = signal;
1545 shutdown_pid = pid;
1546 no_shutdown = 0;
1547
1548 /* Cannot call qemu_system_shutdown_request directly because
1549 * we are in a signal handler.
1550 */
1551 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1552 qemu_notify_event();
1553 }
1554
1555 void qemu_system_shutdown_request(ShutdownCause reason)
1556 {
1557 trace_qemu_system_shutdown_request(reason);
1558 replay_shutdown_request(reason);
1559 shutdown_requested = reason;
1560 qemu_notify_event();
1561 }
1562
1563 static void qemu_system_powerdown(void)
1564 {
1565 qapi_event_send_powerdown();
1566 notifier_list_notify(&powerdown_notifiers, NULL);
1567 }
1568
1569 static void qemu_system_shutdown(ShutdownCause cause)
1570 {
1571 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1572 notifier_list_notify(&shutdown_notifiers, &cause);
1573 }
1574
1575 void qemu_system_powerdown_request(void)
1576 {
1577 trace_qemu_system_powerdown_request();
1578 powerdown_requested = 1;
1579 qemu_notify_event();
1580 }
1581
1582 void qemu_register_powerdown_notifier(Notifier *notifier)
1583 {
1584 notifier_list_add(&powerdown_notifiers, notifier);
1585 }
1586
1587 void qemu_register_shutdown_notifier(Notifier *notifier)
1588 {
1589 notifier_list_add(&shutdown_notifiers, notifier);
1590 }
1591
1592 void qemu_system_debug_request(void)
1593 {
1594 debug_requested = 1;
1595 qemu_notify_event();
1596 }
1597
1598 static bool main_loop_should_exit(void)
1599 {
1600 RunState r;
1601 ShutdownCause request;
1602
1603 if (preconfig_exit_requested) {
1604 if (runstate_check(RUN_STATE_PRECONFIG)) {
1605 runstate_set(RUN_STATE_PRELAUNCH);
1606 }
1607 preconfig_exit_requested = false;
1608 return true;
1609 }
1610 if (qemu_debug_requested()) {
1611 vm_stop(RUN_STATE_DEBUG);
1612 }
1613 if (qemu_suspend_requested()) {
1614 qemu_system_suspend();
1615 }
1616 request = qemu_shutdown_requested();
1617 if (request) {
1618 qemu_kill_report();
1619 qemu_system_shutdown(request);
1620 if (no_shutdown) {
1621 vm_stop(RUN_STATE_SHUTDOWN);
1622 } else {
1623 return true;
1624 }
1625 }
1626 request = qemu_reset_requested();
1627 if (request) {
1628 pause_all_vcpus();
1629 qemu_system_reset(request);
1630 resume_all_vcpus();
1631 /*
1632 * runstate can change in pause_all_vcpus()
1633 * as iothread mutex is unlocked
1634 */
1635 if (!runstate_check(RUN_STATE_RUNNING) &&
1636 !runstate_check(RUN_STATE_INMIGRATE) &&
1637 !runstate_check(RUN_STATE_FINISH_MIGRATE)) {
1638 runstate_set(RUN_STATE_PRELAUNCH);
1639 }
1640 }
1641 if (qemu_wakeup_requested()) {
1642 pause_all_vcpus();
1643 qemu_system_wakeup();
1644 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1645 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1646 resume_all_vcpus();
1647 qapi_event_send_wakeup();
1648 }
1649 if (qemu_powerdown_requested()) {
1650 qemu_system_powerdown();
1651 }
1652 if (qemu_vmstop_requested(&r)) {
1653 vm_stop(r);
1654 }
1655 return false;
1656 }
1657
1658 void qemu_main_loop(void)
1659 {
1660 #ifdef CONFIG_PROFILER
1661 int64_t ti;
1662 #endif
1663 while (!main_loop_should_exit()) {
1664 #ifdef CONFIG_PROFILER
1665 ti = profile_getclock();
1666 #endif
1667 main_loop_wait(false);
1668 #ifdef CONFIG_PROFILER
1669 dev_time += profile_getclock() - ti;
1670 #endif
1671 }
1672 }
1673
1674 static void version(void)
1675 {
1676 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1677 QEMU_COPYRIGHT "\n");
1678 }
1679
1680 static void QEMU_NORETURN help(int exitcode)
1681 {
1682 version();
1683 printf("usage: %s [options] [disk_image]\n\n"
1684 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1685 error_get_progname());
1686
1687 #define QEMU_OPTIONS_GENERATE_HELP
1688 #include "qemu-options-wrapper.h"
1689
1690 printf("\nDuring emulation, the following keys are useful:\n"
1691 "ctrl-alt-f toggle full screen\n"
1692 "ctrl-alt-n switch to virtual console 'n'\n"
1693 "ctrl-alt toggle mouse and keyboard grab\n"
1694 "\n"
1695 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1696 "\n"
1697 QEMU_HELP_BOTTOM "\n");
1698
1699 exit(exitcode);
1700 }
1701
1702 #define HAS_ARG 0x0001
1703
1704 typedef struct QEMUOption {
1705 const char *name;
1706 int flags;
1707 int index;
1708 uint32_t arch_mask;
1709 } QEMUOption;
1710
1711 static const QEMUOption qemu_options[] = {
1712 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1713 #define QEMU_OPTIONS_GENERATE_OPTIONS
1714 #include "qemu-options-wrapper.h"
1715 { NULL },
1716 };
1717
1718 typedef struct VGAInterfaceInfo {
1719 const char *opt_name; /* option name */
1720 const char *name; /* human-readable name */
1721 /* Class names indicating that support is available.
1722 * If no class is specified, the interface is always available */
1723 const char *class_names[2];
1724 } VGAInterfaceInfo;
1725
1726 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1727 [VGA_NONE] = {
1728 .opt_name = "none",
1729 .name = "no graphic card",
1730 },
1731 [VGA_STD] = {
1732 .opt_name = "std",
1733 .name = "standard VGA",
1734 .class_names = { "VGA", "isa-vga" },
1735 },
1736 [VGA_CIRRUS] = {
1737 .opt_name = "cirrus",
1738 .name = "Cirrus VGA",
1739 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1740 },
1741 [VGA_VMWARE] = {
1742 .opt_name = "vmware",
1743 .name = "VMWare SVGA",
1744 .class_names = { "vmware-svga" },
1745 },
1746 [VGA_VIRTIO] = {
1747 .opt_name = "virtio",
1748 .name = "Virtio VGA",
1749 .class_names = { "virtio-vga" },
1750 },
1751 [VGA_QXL] = {
1752 .opt_name = "qxl",
1753 .name = "QXL VGA",
1754 .class_names = { "qxl-vga" },
1755 },
1756 [VGA_TCX] = {
1757 .opt_name = "tcx",
1758 .name = "TCX framebuffer",
1759 .class_names = { "SUNW,tcx" },
1760 },
1761 [VGA_CG3] = {
1762 .opt_name = "cg3",
1763 .name = "CG3 framebuffer",
1764 .class_names = { "cgthree" },
1765 },
1766 [VGA_XENFB] = {
1767 .opt_name = "xenfb",
1768 .name = "Xen paravirtualized framebuffer",
1769 },
1770 };
1771
1772 static bool vga_interface_available(VGAInterfaceType t)
1773 {
1774 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1775
1776 assert(t < VGA_TYPE_MAX);
1777 return !ti->class_names[0] ||
1778 object_class_by_name(ti->class_names[0]) ||
1779 object_class_by_name(ti->class_names[1]);
1780 }
1781
1782 static const char *
1783 get_default_vga_model(const MachineClass *machine_class)
1784 {
1785 if (machine_class->default_display) {
1786 return machine_class->default_display;
1787 } else if (vga_interface_available(VGA_CIRRUS)) {
1788 return "cirrus";
1789 } else if (vga_interface_available(VGA_STD)) {
1790 return "std";
1791 }
1792
1793 return NULL;
1794 }
1795
1796 static void select_vgahw(const MachineClass *machine_class, const char *p)
1797 {
1798 const char *opts;
1799 int t;
1800
1801 if (g_str_equal(p, "help")) {
1802 const char *def = get_default_vga_model(machine_class);
1803
1804 for (t = 0; t < VGA_TYPE_MAX; t++) {
1805 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1806
1807 if (vga_interface_available(t) && ti->opt_name) {
1808 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1809 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1810 }
1811 }
1812 exit(0);
1813 }
1814
1815 assert(vga_interface_type == VGA_NONE);
1816 for (t = 0; t < VGA_TYPE_MAX; t++) {
1817 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1818 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1819 if (!vga_interface_available(t)) {
1820 error_report("%s not available", ti->name);
1821 exit(1);
1822 }
1823 vga_interface_type = t;
1824 break;
1825 }
1826 }
1827 if (t == VGA_TYPE_MAX) {
1828 invalid_vga:
1829 error_report("unknown vga type: %s", p);
1830 exit(1);
1831 }
1832 while (*opts) {
1833 const char *nextopt;
1834
1835 if (strstart(opts, ",retrace=", &nextopt)) {
1836 opts = nextopt;
1837 if (strstart(opts, "dumb", &nextopt))
1838 vga_retrace_method = VGA_RETRACE_DUMB;
1839 else if (strstart(opts, "precise", &nextopt))
1840 vga_retrace_method = VGA_RETRACE_PRECISE;
1841 else goto invalid_vga;
1842 } else goto invalid_vga;
1843 opts = nextopt;
1844 }
1845 }
1846
1847 static void parse_display_qapi(const char *optarg)
1848 {
1849 DisplayOptions *opts;
1850 Visitor *v;
1851
1852 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1853
1854 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1855 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1856
1857 qapi_free_DisplayOptions(opts);
1858 visit_free(v);
1859 }
1860
1861 DisplayOptions *qmp_query_display_options(Error **errp)
1862 {
1863 return QAPI_CLONE(DisplayOptions, &dpy);
1864 }
1865
1866 static void parse_display(const char *p)
1867 {
1868 const char *opts;
1869
1870 if (is_help_option(p)) {
1871 qemu_display_help();
1872 exit(0);
1873 }
1874
1875 if (strstart(p, "sdl", &opts)) {
1876 /*
1877 * sdl DisplayType needs hand-crafted parser instead of
1878 * parse_display_qapi() due to some options not in
1879 * DisplayOptions, specifically:
1880 * - frame
1881 * Already deprecated.
1882 * - ctrl_grab + alt_grab
1883 * Not clear yet what happens to them long-term. Should
1884 * replaced by something better or deprecated and dropped.
1885 */
1886 dpy.type = DISPLAY_TYPE_SDL;
1887 while (*opts) {
1888 const char *nextopt;
1889
1890 if (strstart(opts, ",alt_grab=", &nextopt)) {
1891 opts = nextopt;
1892 if (strstart(opts, "on", &nextopt)) {
1893 alt_grab = 1;
1894 } else if (strstart(opts, "off", &nextopt)) {
1895 alt_grab = 0;
1896 } else {
1897 goto invalid_sdl_args;
1898 }
1899 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1900 opts = nextopt;
1901 if (strstart(opts, "on", &nextopt)) {
1902 ctrl_grab = 1;
1903 } else if (strstart(opts, "off", &nextopt)) {
1904 ctrl_grab = 0;
1905 } else {
1906 goto invalid_sdl_args;
1907 }
1908 } else if (strstart(opts, ",window_close=", &nextopt)) {
1909 opts = nextopt;
1910 dpy.has_window_close = true;
1911 if (strstart(opts, "on", &nextopt)) {
1912 dpy.window_close = true;
1913 } else if (strstart(opts, "off", &nextopt)) {
1914 dpy.window_close = false;
1915 } else {
1916 goto invalid_sdl_args;
1917 }
1918 } else if (strstart(opts, ",show-cursor=", &nextopt)) {
1919 opts = nextopt;
1920 dpy.has_show_cursor = true;
1921 if (strstart(opts, "on", &nextopt)) {
1922 dpy.show_cursor = true;
1923 } else if (strstart(opts, "off", &nextopt)) {
1924 dpy.show_cursor = false;
1925 } else {
1926 goto invalid_sdl_args;
1927 }
1928 } else if (strstart(opts, ",gl=", &nextopt)) {
1929 opts = nextopt;
1930 dpy.has_gl = true;
1931 if (strstart(opts, "on", &nextopt)) {
1932 dpy.gl = DISPLAYGL_MODE_ON;
1933 } else if (strstart(opts, "core", &nextopt)) {
1934 dpy.gl = DISPLAYGL_MODE_CORE;
1935 } else if (strstart(opts, "es", &nextopt)) {
1936 dpy.gl = DISPLAYGL_MODE_ES;
1937 } else if (strstart(opts, "off", &nextopt)) {
1938 dpy.gl = DISPLAYGL_MODE_OFF;
1939 } else {
1940 goto invalid_sdl_args;
1941 }
1942 } else {
1943 invalid_sdl_args:
1944 error_report("invalid SDL option string");
1945 exit(1);
1946 }
1947 opts = nextopt;
1948 }
1949 } else if (strstart(p, "vnc", &opts)) {
1950 /*
1951 * vnc isn't a (local) DisplayType but a protocol for remote
1952 * display access.
1953 */
1954 if (*opts == '=') {
1955 vnc_parse(opts + 1, &error_fatal);
1956 } else {
1957 error_report("VNC requires a display argument vnc=<display>");
1958 exit(1);
1959 }
1960 } else {
1961 parse_display_qapi(p);
1962 }
1963 }
1964
1965 char *qemu_find_file(int type, const char *name)
1966 {
1967 int i;
1968 const char *subdir;
1969 char *buf;
1970
1971 /* Try the name as a straight path first */
1972 if (access(name, R_OK) == 0) {
1973 trace_load_file(name, name);
1974 return g_strdup(name);
1975 }
1976
1977 switch (type) {
1978 case QEMU_FILE_TYPE_BIOS:
1979 subdir = "";
1980 break;
1981 case QEMU_FILE_TYPE_KEYMAP:
1982 subdir = "keymaps/";
1983 break;
1984 default:
1985 abort();
1986 }
1987
1988 for (i = 0; i < data_dir_idx; i++) {
1989 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
1990 if (access(buf, R_OK) == 0) {
1991 trace_load_file(name, buf);
1992 return buf;
1993 }
1994 g_free(buf);
1995 }
1996 return NULL;
1997 }
1998
1999 static void qemu_add_data_dir(const char *path)
2000 {
2001 int i;
2002
2003 if (path == NULL) {
2004 return;
2005 }
2006 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2007 return;
2008 }
2009 for (i = 0; i < data_dir_idx; i++) {
2010 if (strcmp(data_dir[i], path) == 0) {
2011 return; /* duplicate */
2012 }
2013 }
2014 data_dir[data_dir_idx++] = g_strdup(path);
2015 }
2016
2017 static inline bool nonempty_str(const char *str)
2018 {
2019 return str && *str;
2020 }
2021
2022 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2023 {
2024 gchar *buf;
2025 size_t size;
2026 const char *name, *file, *str;
2027 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2028
2029 if (fw_cfg == NULL) {
2030 error_setg(errp, "fw_cfg device not available");
2031 return -1;
2032 }
2033 name = qemu_opt_get(opts, "name");
2034 file = qemu_opt_get(opts, "file");
2035 str = qemu_opt_get(opts, "string");
2036
2037 /* we need name and either a file or the content string */
2038 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2039 error_setg(errp, "invalid argument(s)");
2040 return -1;
2041 }
2042 if (nonempty_str(file) && nonempty_str(str)) {
2043 error_setg(errp, "file and string are mutually exclusive");
2044 return -1;
2045 }
2046 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2047 error_setg(errp, "name too long (max. %d char)",
2048 FW_CFG_MAX_FILE_PATH - 1);
2049 return -1;
2050 }
2051 if (strncmp(name, "opt/", 4) != 0) {
2052 warn_report("externally provided fw_cfg item names "
2053 "should be prefixed with \"opt/\"");
2054 }
2055 if (nonempty_str(str)) {
2056 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2057 buf = g_memdup(str, size);
2058 } else {
2059 GError *err = NULL;
2060 if (!g_file_get_contents(file, &buf, &size, &err)) {
2061 error_setg(errp, "can't load %s: %s", file, err->message);
2062 g_error_free(err);
2063 return -1;
2064 }
2065 }
2066 /* For legacy, keep user files in a specific global order. */
2067 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2068 fw_cfg_add_file(fw_cfg, name, buf, size);
2069 fw_cfg_reset_order_override(fw_cfg);
2070 return 0;
2071 }
2072
2073 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2074 {
2075 return qdev_device_help(opts);
2076 }
2077
2078 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2079 {
2080 DeviceState *dev;
2081
2082 dev = qdev_device_add(opts, errp);
2083 if (!dev && *errp) {
2084 error_report_err(*errp);
2085 return -1;
2086 } else if (dev) {
2087 object_unref(OBJECT(dev));
2088 }
2089 return 0;
2090 }
2091
2092 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2093 {
2094 Error *local_err = NULL;
2095
2096 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2097 if (local_err) {
2098 error_propagate(errp, local_err);
2099 return -1;
2100 }
2101 exit(0);
2102 }
2103 return 0;
2104 }
2105
2106 #ifdef CONFIG_VIRTFS
2107 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2108 {
2109 return qemu_fsdev_add(opts, errp);
2110 }
2111 #endif
2112
2113 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2114 {
2115 return monitor_init_opts(opts, errp);
2116 }
2117
2118 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2119 {
2120 static int monitor_device_index = 0;
2121 QemuOpts *opts;
2122 const char *p;
2123 char label[32];
2124
2125 if (strstart(optarg, "chardev:", &p)) {
2126 snprintf(label, sizeof(label), "%s", p);
2127 } else {
2128 snprintf(label, sizeof(label), "compat_monitor%d",
2129 monitor_device_index);
2130 opts = qemu_chr_parse_compat(label, optarg, true);
2131 if (!opts) {
2132 error_report("parse error: %s", optarg);
2133 exit(1);
2134 }
2135 }
2136
2137 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2138 qemu_opt_set(opts, "mode", mode, &error_abort);
2139 qemu_opt_set(opts, "chardev", label, &error_abort);
2140 if (!strcmp(mode, "control")) {
2141 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2142 } else {
2143 assert(pretty == false);
2144 }
2145 monitor_device_index++;
2146 }
2147
2148 struct device_config {
2149 enum {
2150 DEV_USB, /* -usbdevice */
2151 DEV_SERIAL, /* -serial */
2152 DEV_PARALLEL, /* -parallel */
2153 DEV_DEBUGCON, /* -debugcon */
2154 DEV_GDB, /* -gdb, -s */
2155 DEV_SCLP, /* s390 sclp */
2156 } type;
2157 const char *cmdline;
2158 Location loc;
2159 QTAILQ_ENTRY(device_config) next;
2160 };
2161
2162 static QTAILQ_HEAD(, device_config) device_configs =
2163 QTAILQ_HEAD_INITIALIZER(device_configs);
2164
2165 static void add_device_config(int type, const char *cmdline)
2166 {
2167 struct device_config *conf;
2168
2169 conf = g_malloc0(sizeof(*conf));
2170 conf->type = type;
2171 conf->cmdline = cmdline;
2172 loc_save(&conf->loc);
2173 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2174 }
2175
2176 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2177 {
2178 struct device_config *conf;
2179 int rc;
2180
2181 QTAILQ_FOREACH(conf, &device_configs, next) {
2182 if (conf->type != type)
2183 continue;
2184 loc_push_restore(&conf->loc);
2185 rc = func(conf->cmdline);
2186 loc_pop(&conf->loc);
2187 if (rc) {
2188 return rc;
2189 }
2190 }
2191 return 0;
2192 }
2193
2194 static int serial_parse(const char *devname)
2195 {
2196 int index = num_serial_hds;
2197 char label[32];
2198
2199 if (strcmp(devname, "none") == 0)
2200 return 0;
2201 snprintf(label, sizeof(label), "serial%d", index);
2202 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2203
2204 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2205 if (!serial_hds[index]) {
2206 error_report("could not connect serial device"
2207 " to character backend '%s'", devname);
2208 return -1;
2209 }
2210 num_serial_hds++;
2211 return 0;
2212 }
2213
2214 Chardev *serial_hd(int i)
2215 {
2216 assert(i >= 0);
2217 if (i < num_serial_hds) {
2218 return serial_hds[i];
2219 }
2220 return NULL;
2221 }
2222
2223 int serial_max_hds(void)
2224 {
2225 return num_serial_hds;
2226 }
2227
2228 static int parallel_parse(const char *devname)
2229 {
2230 static int index = 0;
2231 char label[32];
2232
2233 if (strcmp(devname, "none") == 0)
2234 return 0;
2235 if (index == MAX_PARALLEL_PORTS) {
2236 error_report("too many parallel ports");
2237 exit(1);
2238 }
2239 snprintf(label, sizeof(label), "parallel%d", index);
2240 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2241 if (!parallel_hds[index]) {
2242 error_report("could not connect parallel device"
2243 " to character backend '%s'", devname);
2244 return -1;
2245 }
2246 index++;
2247 return 0;
2248 }
2249
2250 static int debugcon_parse(const char *devname)
2251 {
2252 QemuOpts *opts;
2253
2254 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2255 error_report("invalid character backend '%s'", devname);
2256 exit(1);
2257 }
2258 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2259 if (!opts) {
2260 error_report("already have a debugcon device");
2261 exit(1);
2262 }
2263 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2264 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2265 return 0;
2266 }
2267
2268 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2269 {
2270 const MachineClass *mc1 = a, *mc2 = b;
2271 int res;
2272
2273 if (mc1->family == NULL) {
2274 if (mc2->family == NULL) {
2275 /* Compare standalone machine types against each other; they sort
2276 * in increasing order.
2277 */
2278 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2279 object_class_get_name(OBJECT_CLASS(mc2)));
2280 }
2281
2282 /* Standalone machine types sort after families. */
2283 return 1;
2284 }
2285
2286 if (mc2->family == NULL) {
2287 /* Families sort before standalone machine types. */
2288 return -1;
2289 }
2290
2291 /* Families sort between each other alphabetically increasingly. */
2292 res = strcmp(mc1->family, mc2->family);
2293 if (res != 0) {
2294 return res;
2295 }
2296
2297 /* Within the same family, machine types sort in decreasing order. */
2298 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2299 object_class_get_name(OBJECT_CLASS(mc1)));
2300 }
2301
2302 static MachineClass *machine_parse(const char *name, GSList *machines)
2303 {
2304 MachineClass *mc;
2305 GSList *el;
2306
2307 if (is_help_option(name)) {
2308 printf("Supported machines are:\n");
2309 machines = g_slist_sort(machines, machine_class_cmp);
2310 for (el = machines; el; el = el->next) {
2311 MachineClass *mc = el->data;
2312 if (mc->alias) {
2313 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2314 }
2315 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2316 mc->is_default ? " (default)" : "",
2317 mc->deprecation_reason ? " (deprecated)" : "");
2318 }
2319 exit(0);
2320 }
2321
2322 mc = find_machine(name, machines);
2323 if (!mc) {
2324 error_report("unsupported machine type");
2325 error_printf("Use -machine help to list supported machines\n");
2326 exit(1);
2327 }
2328 return mc;
2329 }
2330
2331 void qemu_add_exit_notifier(Notifier *notify)
2332 {
2333 notifier_list_add(&exit_notifiers, notify);
2334 }
2335
2336 void qemu_remove_exit_notifier(Notifier *notify)
2337 {
2338 notifier_remove(notify);
2339 }
2340
2341 static void qemu_run_exit_notifiers(void)
2342 {
2343 notifier_list_notify(&exit_notifiers, NULL);
2344 }
2345
2346 static const char *pid_file;
2347 static Notifier qemu_unlink_pidfile_notifier;
2348
2349 static void qemu_unlink_pidfile(Notifier *n, void *data)
2350 {
2351 if (pid_file) {
2352 unlink(pid_file);
2353 }
2354 }
2355
2356 bool machine_init_done;
2357
2358 void qemu_add_machine_init_done_notifier(Notifier *notify)
2359 {
2360 notifier_list_add(&machine_init_done_notifiers, notify);
2361 if (machine_init_done) {
2362 notify->notify(notify, NULL);
2363 }
2364 }
2365
2366 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2367 {
2368 notifier_remove(notify);
2369 }
2370
2371 static void qemu_run_machine_init_done_notifiers(void)
2372 {
2373 machine_init_done = true;
2374 notifier_list_notify(&machine_init_done_notifiers, NULL);
2375 }
2376
2377 static const QEMUOption *lookup_opt(int argc, char **argv,
2378 const char **poptarg, int *poptind)
2379 {
2380 const QEMUOption *popt;
2381 int optind = *poptind;
2382 char *r = argv[optind];
2383 const char *optarg;
2384
2385 loc_set_cmdline(argv, optind, 1);
2386 optind++;
2387 /* Treat --foo the same as -foo. */
2388 if (r[1] == '-')
2389 r++;
2390 popt = qemu_options;
2391 for(;;) {
2392 if (!popt->name) {
2393 error_report("invalid option");
2394 exit(1);
2395 }
2396 if (!strcmp(popt->name, r + 1))
2397 break;
2398 popt++;
2399 }
2400 if (popt->flags & HAS_ARG) {
2401 if (optind >= argc) {
2402 error_report("requires an argument");
2403 exit(1);
2404 }
2405 optarg = argv[optind++];
2406 loc_set_cmdline(argv, optind - 2, 2);
2407 } else {
2408 optarg = NULL;
2409 }
2410
2411 *poptarg = optarg;
2412 *poptind = optind;
2413
2414 return popt;
2415 }
2416
2417 static MachineClass *select_machine(void)
2418 {
2419 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2420 MachineClass *machine_class = find_default_machine(machines);
2421 const char *optarg;
2422 QemuOpts *opts;
2423 Location loc;
2424
2425 loc_push_none(&loc);
2426
2427 opts = qemu_get_machine_opts();
2428 qemu_opts_loc_restore(opts);
2429
2430 optarg = qemu_opt_get(opts, "type");
2431 if (optarg) {
2432 machine_class = machine_parse(optarg, machines);
2433 }
2434
2435 if (!machine_class) {
2436 error_report("No machine specified, and there is no default");
2437 error_printf("Use -machine help to list supported machines\n");
2438 exit(1);
2439 }
2440
2441 loc_pop(&loc);
2442 g_slist_free(machines);
2443 return machine_class;
2444 }
2445
2446 static int object_parse_property_opt(Object *obj,
2447 const char *name, const char *value,
2448 const char *skip, Error **errp)
2449 {
2450 Error *local_err = NULL;
2451
2452 if (g_str_equal(name, skip)) {
2453 return 0;
2454 }
2455
2456 object_property_parse(obj, value, name, &local_err);
2457
2458 if (local_err) {
2459 error_propagate(errp, local_err);
2460 return -1;
2461 }
2462
2463 return 0;
2464 }
2465
2466 static int machine_set_property(void *opaque,
2467 const char *name, const char *value,
2468 Error **errp)
2469 {
2470 g_autofree char *qom_name = g_strdup(name);
2471 char *p;
2472
2473 for (p = qom_name; *p; p++) {
2474 if (*p == '_') {
2475 *p = '-';
2476 }
2477 }
2478
2479 /* Legacy options do not correspond to MachineState properties. */
2480 if (g_str_equal(qom_name, "accel")) {
2481 return 0;
2482 }
2483 if (g_str_equal(qom_name, "igd-passthru")) {
2484 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
2485 return 0;
2486 }
2487 if (g_str_equal(qom_name, "kvm-shadow-mem") ||
2488 g_str_equal(qom_name, "kernel-irqchip")) {
2489 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), qom_name, value);
2490 return 0;
2491 }
2492
2493 return object_parse_property_opt(opaque, name, value, "type", errp);
2494 }
2495
2496 /*
2497 * Initial object creation happens before all other
2498 * QEMU data types are created. The majority of objects
2499 * can be created at this point. The rng-egd object
2500 * cannot be created here, as it depends on the chardev
2501 * already existing.
2502 */
2503 static bool object_create_initial(const char *type, QemuOpts *opts)
2504 {
2505 if (user_creatable_print_help(type, opts)) {
2506 exit(0);
2507 }
2508
2509 /*
2510 * Objects should not be made "delayed" without a reason. If you
2511 * add one, state the reason in a comment!
2512 */
2513
2514 /* Reason: rng-egd property "chardev" */
2515 if (g_str_equal(type, "rng-egd")) {
2516 return false;
2517 }
2518
2519 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2520 /* Reason: cryptodev-vhost-user property "chardev" */
2521 if (g_str_equal(type, "cryptodev-vhost-user")) {
2522 return false;
2523 }
2524 #endif
2525
2526 /*
2527 * Reason: filter-* property "netdev" etc.
2528 */
2529 if (g_str_equal(type, "filter-buffer") ||
2530 g_str_equal(type, "filter-dump") ||
2531 g_str_equal(type, "filter-mirror") ||
2532 g_str_equal(type, "filter-redirector") ||
2533 g_str_equal(type, "colo-compare") ||
2534 g_str_equal(type, "filter-rewriter") ||
2535 g_str_equal(type, "filter-replay")) {
2536 return false;
2537 }
2538
2539 /* Memory allocation by backends needs to be done
2540 * after configure_accelerator() (due to the tcg_enabled()
2541 * checks at memory_region_init_*()).
2542 *
2543 * Also, allocation of large amounts of memory may delay
2544 * chardev initialization for too long, and trigger timeouts
2545 * on software that waits for a monitor socket to be created
2546 * (e.g. libvirt).
2547 */
2548 if (g_str_has_prefix(type, "memory-backend-")) {
2549 return false;
2550 }
2551
2552 return true;
2553 }
2554
2555
2556 /*
2557 * The remainder of object creation happens after the
2558 * creation of chardev, fsdev, net clients and device data types.
2559 */
2560 static bool object_create_delayed(const char *type, QemuOpts *opts)
2561 {
2562 return !object_create_initial(type, opts);
2563 }
2564
2565
2566 static bool set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2567 MachineClass *mc)
2568 {
2569 uint64_t sz;
2570 const char *mem_str;
2571 const ram_addr_t default_ram_size = mc->default_ram_size;
2572 QemuOpts *opts = qemu_find_opts_singleton("memory");
2573 Location loc;
2574
2575 loc_push_none(&loc);
2576 qemu_opts_loc_restore(opts);
2577
2578 sz = 0;
2579 mem_str = qemu_opt_get(opts, "size");
2580 if (mem_str) {
2581 if (!*mem_str) {
2582 error_report("missing 'size' option value");
2583 exit(EXIT_FAILURE);
2584 }
2585
2586 sz = qemu_opt_get_size(opts, "size", ram_size);
2587
2588 /* Fix up legacy suffix-less format */
2589 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2590 uint64_t overflow_check = sz;
2591
2592 sz *= MiB;
2593 if (sz / MiB != overflow_check) {
2594 error_report("too large 'size' option value");
2595 exit(EXIT_FAILURE);
2596 }
2597 }
2598 }
2599
2600 /* backward compatibility behaviour for case "-m 0" */
2601 if (sz == 0) {
2602 sz = default_ram_size;
2603 }
2604
2605 sz = QEMU_ALIGN_UP(sz, 8192);
2606 ram_size = sz;
2607 if (ram_size != sz) {
2608 error_report("ram size too large");
2609 exit(EXIT_FAILURE);
2610 }
2611
2612 /* store value for the future use */
2613 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2614 *maxram_size = ram_size;
2615
2616 if (qemu_opt_get(opts, "maxmem")) {
2617 uint64_t slots;
2618
2619 sz = qemu_opt_get_size(opts, "maxmem", 0);
2620 slots = qemu_opt_get_number(opts, "slots", 0);
2621 if (sz < ram_size) {
2622 error_report("invalid value of -m option maxmem: "
2623 "maximum memory size (0x%" PRIx64 ") must be at least "
2624 "the initial memory size (0x" RAM_ADDR_FMT ")",
2625 sz, ram_size);
2626 exit(EXIT_FAILURE);
2627 } else if (slots && sz == ram_size) {
2628 error_report("invalid value of -m option maxmem: "
2629 "memory slots were specified but maximum memory size "
2630 "(0x%" PRIx64 ") is equal to the initial memory size "
2631 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2632 exit(EXIT_FAILURE);
2633 }
2634
2635 *maxram_size = sz;
2636 *ram_slots = slots;
2637 } else if (qemu_opt_get(opts, "slots")) {
2638 error_report("invalid -m option value: missing 'maxmem' option");
2639 exit(EXIT_FAILURE);
2640 }
2641
2642 loc_pop(&loc);
2643 return !!mem_str;
2644 }
2645
2646 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2647 {
2648 GlobalProperty *g;
2649
2650 g = g_malloc0(sizeof(*g));
2651 g->driver = qemu_opt_get(opts, "driver");
2652 g->property = qemu_opt_get(opts, "property");
2653 g->value = qemu_opt_get(opts, "value");
2654 qdev_prop_register_global(g);
2655 return 0;
2656 }
2657
2658 static int qemu_read_default_config_file(void)
2659 {
2660 int ret;
2661
2662 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2663 if (ret < 0 && ret != -ENOENT) {
2664 return ret;
2665 }
2666
2667 return 0;
2668 }
2669
2670 static void user_register_global_props(void)
2671 {
2672 qemu_opts_foreach(qemu_find_opts("global"),
2673 global_init_func, NULL, NULL);
2674 }
2675
2676 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2677 {
2678 configure_icount(opts, errp);
2679 return 0;
2680 }
2681
2682 static int accelerator_set_property(void *opaque,
2683 const char *name, const char *value,
2684 Error **errp)
2685 {
2686 return object_parse_property_opt(opaque, name, value, "accel", errp);
2687 }
2688
2689 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2690 {
2691 bool *p_init_failed = opaque;
2692 const char *acc = qemu_opt_get(opts, "accel");
2693 AccelClass *ac = accel_find(acc);
2694 AccelState *accel;
2695 int ret;
2696
2697 if (!ac) {
2698 *p_init_failed = true;
2699 error_report("invalid accelerator %s", acc);
2700 return 0;
2701 }
2702 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2703 object_apply_compat_props(OBJECT(accel));
2704 qemu_opt_foreach(opts, accelerator_set_property,
2705 accel,
2706 &error_fatal);
2707
2708 ret = accel_init_machine(accel, current_machine);
2709 if (ret < 0) {
2710 *p_init_failed = true;
2711 error_report("failed to initialize %s: %s",
2712 acc, strerror(-ret));
2713 return 0;
2714 }
2715
2716 return 1;
2717 }
2718
2719 static void configure_accelerators(const char *progname)
2720 {
2721 const char *accel;
2722 bool init_failed = false;
2723
2724 qemu_opts_foreach(qemu_find_opts("icount"),
2725 do_configure_icount, NULL, &error_fatal);
2726
2727 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
2728 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2729 char **accel_list, **tmp;
2730
2731 if (accel == NULL) {
2732 /* Select the default accelerator */
2733 bool have_tcg = accel_find("tcg");
2734 bool have_kvm = accel_find("kvm");
2735
2736 if (have_tcg && have_kvm) {
2737 if (g_str_has_suffix(progname, "kvm")) {
2738 /* If the program name ends with "kvm", we prefer KVM */
2739 accel = "kvm:tcg";
2740 } else {
2741 accel = "tcg:kvm";
2742 }
2743 } else if (have_kvm) {
2744 accel = "kvm";
2745 } else if (have_tcg) {
2746 accel = "tcg";
2747 } else {
2748 error_report("No accelerator selected and"
2749 " no default accelerator available");
2750 exit(1);
2751 }
2752 }
2753 accel_list = g_strsplit(accel, ":", 0);
2754
2755 for (tmp = accel_list; *tmp; tmp++) {
2756 /*
2757 * Filter invalid accelerators here, to prevent obscenities
2758 * such as "-machine accel=tcg,,thread=single".
2759 */
2760 if (accel_find(*tmp)) {
2761 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2762 } else {
2763 init_failed = true;
2764 error_report("invalid accelerator %s", *tmp);
2765 }
2766 }
2767 g_strfreev(accel_list);
2768 } else {
2769 if (accel != NULL) {
2770 error_report("The -accel and \"-machine accel=\" options are incompatible");
2771 exit(1);
2772 }
2773 }
2774
2775 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2776 do_configure_accelerator, &init_failed, &error_fatal)) {
2777 if (!init_failed) {
2778 error_report("no accelerator found");
2779 }
2780 exit(1);
2781 }
2782
2783 if (init_failed) {
2784 AccelClass *ac = ACCEL_GET_CLASS(current_accel());
2785 error_report("falling back to %s", ac->name);
2786 }
2787
2788 if (use_icount && !(tcg_enabled() || qtest_enabled())) {
2789 error_report("-icount is not allowed with hardware virtualization");
2790 exit(1);
2791 }
2792 }
2793
2794 static void create_default_memdev(MachineState *ms, const char *path)
2795 {
2796 Object *obj;
2797 MachineClass *mc = MACHINE_GET_CLASS(ms);
2798
2799 obj = object_new(path ? TYPE_MEMORY_BACKEND_FILE : TYPE_MEMORY_BACKEND_RAM);
2800 if (path) {
2801 object_property_set_str(obj, path, "mem-path", &error_fatal);
2802 }
2803 object_property_set_int(obj, ms->ram_size, "size", &error_fatal);
2804 object_property_add_child(object_get_objects_root(), mc->default_ram_id,
2805 obj, &error_fatal);
2806 /* Ensure backend's memory region name is equal to mc->default_ram_id */
2807 object_property_set_bool(obj, false, "x-use-canonical-path-for-ramblock-id",
2808 &error_fatal);
2809 user_creatable_complete(USER_CREATABLE(obj), &error_fatal);
2810 object_unref(obj);
2811 object_property_set_str(OBJECT(ms), mc->default_ram_id, "memory-backend",
2812 &error_fatal);
2813 }
2814
2815 void qemu_init(int argc, char **argv, char **envp)
2816 {
2817 int i;
2818 int snapshot, linux_boot;
2819 const char *initrd_filename;
2820 const char *kernel_filename, *kernel_cmdline;
2821 const char *boot_order = NULL;
2822 const char *boot_once = NULL;
2823 DisplayState *ds;
2824 QemuOpts *opts, *machine_opts;
2825 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2826 QemuOptsList *olist;
2827 int optind;
2828 const char *optarg;
2829 const char *loadvm = NULL;
2830 MachineClass *machine_class;
2831 const char *cpu_option;
2832 const char *vga_model = NULL;
2833 const char *qtest_chrdev = NULL;
2834 const char *qtest_log = NULL;
2835 const char *incoming = NULL;
2836 bool userconfig = true;
2837 bool nographic = false;
2838 int display_remote = 0;
2839 const char *log_mask = NULL;
2840 const char *log_file = NULL;
2841 char *trace_file = NULL;
2842 ram_addr_t maxram_size;
2843 uint64_t ram_slots = 0;
2844 FILE *vmstate_dump_file = NULL;
2845 Error *main_loop_err = NULL;
2846 Error *err = NULL;
2847 bool list_data_dirs = false;
2848 char *dir, **dirs;
2849 const char *mem_path = NULL;
2850 bool have_custom_ram_size;
2851 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2852 QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
2853 int mem_prealloc = 0; /* force preallocation of physical target memory */
2854
2855 os_set_line_buffering();
2856
2857 error_init(argv[0]);
2858 module_call_init(MODULE_INIT_TRACE);
2859
2860 qemu_init_cpu_list();
2861 qemu_init_cpu_loop();
2862
2863 qemu_mutex_lock_iothread();
2864
2865 atexit(qemu_run_exit_notifiers);
2866 qemu_init_exec_dir(argv[0]);
2867
2868 module_call_init(MODULE_INIT_QOM);
2869 module_call_init(MODULE_INIT_MIGRATION);
2870
2871 qemu_add_opts(&qemu_drive_opts);
2872 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2873 qemu_add_drive_opts(&qemu_common_drive_opts);
2874 qemu_add_drive_opts(&qemu_drive_opts);
2875 qemu_add_drive_opts(&bdrv_runtime_opts);
2876 qemu_add_opts(&qemu_chardev_opts);
2877 qemu_add_opts(&qemu_device_opts);
2878 qemu_add_opts(&qemu_netdev_opts);
2879 qemu_add_opts(&qemu_nic_opts);
2880 qemu_add_opts(&qemu_net_opts);
2881 qemu_add_opts(&qemu_rtc_opts);
2882 qemu_add_opts(&qemu_global_opts);
2883 qemu_add_opts(&qemu_mon_opts);
2884 qemu_add_opts(&qemu_trace_opts);
2885 qemu_plugin_add_opts();
2886 qemu_add_opts(&qemu_option_rom_opts);
2887 qemu_add_opts(&qemu_machine_opts);
2888 qemu_add_opts(&qemu_accel_opts);
2889 qemu_add_opts(&qemu_mem_opts);
2890 qemu_add_opts(&qemu_smp_opts);
2891 qemu_add_opts(&qemu_boot_opts);
2892 qemu_add_opts(&qemu_add_fd_opts);
2893 qemu_add_opts(&qemu_object_opts);
2894 qemu_add_opts(&qemu_tpmdev_opts);
2895 qemu_add_opts(&qemu_realtime_opts);
2896 qemu_add_opts(&qemu_overcommit_opts);
2897 qemu_add_opts(&qemu_msg_opts);
2898 qemu_add_opts(&qemu_name_opts);
2899 qemu_add_opts(&qemu_numa_opts);
2900 qemu_add_opts(&qemu_icount_opts);
2901 qemu_add_opts(&qemu_semihosting_config_opts);
2902 qemu_add_opts(&qemu_fw_cfg_opts);
2903 module_call_init(MODULE_INIT_OPTS);
2904
2905 runstate_init();
2906 precopy_infrastructure_init();
2907 postcopy_infrastructure_init();
2908 monitor_init_globals();
2909
2910 if (qcrypto_init(&err) < 0) {
2911 error_reportf_err(err, "cannot initialize crypto: ");
2912 exit(1);
2913 }
2914
2915 QTAILQ_INIT(&vm_change_state_head);
2916 os_setup_early_signal_handling();
2917
2918 cpu_option = NULL;
2919 snapshot = 0;
2920
2921 nb_nics = 0;
2922
2923 bdrv_init_with_whitelist();
2924
2925 autostart = 1;
2926
2927 /* first pass of option parsing */
2928 optind = 1;
2929 while (optind < argc) {
2930 if (argv[optind][0] != '-') {
2931 /* disk image */
2932 optind++;
2933 } else {
2934 const QEMUOption *popt;
2935
2936 popt = lookup_opt(argc, argv, &optarg, &optind);
2937 switch (popt->index) {
2938 case QEMU_OPTION_nouserconfig:
2939 userconfig = false;
2940 break;
2941 }
2942 }
2943 }
2944
2945 if (userconfig) {
2946 if (qemu_read_default_config_file() < 0) {
2947 exit(1);
2948 }
2949 }
2950
2951 /* second pass of option parsing */
2952 optind = 1;
2953 for(;;) {
2954 if (optind >= argc)
2955 break;
2956 if (argv[optind][0] != '-') {
2957 loc_set_cmdline(argv, optind, 1);
2958 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2959 } else {
2960 const QEMUOption *popt;
2961
2962 popt = lookup_opt(argc, argv, &optarg, &optind);
2963 if (!(popt->arch_mask & arch_type)) {
2964 error_report("Option not supported for this target");
2965 exit(1);
2966 }
2967 switch(popt->index) {
2968 case QEMU_OPTION_cpu:
2969 /* hw initialization will check this */
2970 cpu_option = optarg;
2971 break;
2972 case QEMU_OPTION_hda:
2973 case QEMU_OPTION_hdb:
2974 case QEMU_OPTION_hdc:
2975 case QEMU_OPTION_hdd:
2976 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2977 HD_OPTS);
2978 break;
2979 case QEMU_OPTION_blockdev:
2980 {
2981 Visitor *v;
2982 BlockdevOptionsQueueEntry *bdo;
2983
2984 v = qobject_input_visitor_new_str(optarg, "driver",
2985 &error_fatal);
2986
2987 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2988 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2989 &error_fatal);
2990 visit_free(v);
2991 loc_save(&bdo->loc);
2992 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2993 break;
2994 }
2995 case QEMU_OPTION_drive:
2996 if (drive_def(optarg) == NULL) {
2997 exit(1);
2998 }
2999 break;
3000 case QEMU_OPTION_set:
3001 if (qemu_set_option(optarg) != 0)
3002 exit(1);
3003 break;
3004 case QEMU_OPTION_global:
3005 if (qemu_global_option(optarg) != 0)
3006 exit(1);
3007 break;
3008 case QEMU_OPTION_mtdblock:
3009 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3010 break;
3011 case QEMU_OPTION_sd:
3012 drive_add(IF_SD, -1, optarg, SD_OPTS);
3013 break;
3014 case QEMU_OPTION_pflash:
3015 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3016 break;
3017 case QEMU_OPTION_snapshot:
3018 {
3019 Error *blocker = NULL;
3020 snapshot = 1;
3021 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
3022 "-snapshot");
3023 replay_add_blocker(blocker);
3024 }
3025 break;
3026 case QEMU_OPTION_numa:
3027 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3028 optarg, true);
3029 if (!opts) {
3030 exit(1);
3031 }
3032 break;
3033 case QEMU_OPTION_display:
3034 parse_display(optarg);
3035 break;
3036 case QEMU_OPTION_nographic:
3037 olist = qemu_find_opts("machine");
3038 qemu_opts_parse_noisily(olist, "graphics=off", false);
3039 nographic = true;
3040 dpy.type = DISPLAY_TYPE_NONE;
3041 break;
3042 case QEMU_OPTION_curses:
3043 #ifdef CONFIG_CURSES
3044 dpy.type = DISPLAY_TYPE_CURSES;
3045 #else
3046 error_report("curses or iconv support is disabled");
3047 exit(1);
3048 #endif
3049 break;
3050 case QEMU_OPTION_portrait:
3051 graphic_rotate = 90;
3052 break;
3053 case QEMU_OPTION_rotate:
3054 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3055 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3056 graphic_rotate != 180 && graphic_rotate != 270) {
3057 error_report("only 90, 180, 270 deg rotation is available");
3058 exit(1);
3059 }
3060 break;
3061 case QEMU_OPTION_kernel:
3062 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3063 &error_abort);
3064 break;
3065 case QEMU_OPTION_initrd:
3066 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3067 &error_abort);
3068 break;
3069 case QEMU_OPTION_append:
3070 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3071 &error_abort);
3072 break;
3073 case QEMU_OPTION_dtb:
3074 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3075 &error_abort);
3076 break;
3077 case QEMU_OPTION_cdrom:
3078 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3079 break;
3080 case QEMU_OPTION_boot:
3081 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3082 optarg, true);
3083 if (!opts) {
3084 exit(1);
3085 }
3086 break;
3087 case QEMU_OPTION_fda:
3088 case QEMU_OPTION_fdb:
3089 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3090 optarg, FD_OPTS);
3091 break;
3092 case QEMU_OPTION_no_fd_bootchk:
3093 fd_bootchk = 0;
3094 break;
3095 case QEMU_OPTION_netdev:
3096 default_net = 0;
3097 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3098 exit(1);
3099 }
3100 break;
3101 case QEMU_OPTION_nic:
3102 default_net = 0;
3103 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3104 exit(1);
3105 }
3106 break;
3107 case QEMU_OPTION_net:
3108 default_net = 0;
3109 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3110 exit(1);
3111 }
3112 break;
3113 #ifdef CONFIG_LIBISCSI
3114 case QEMU_OPTION_iscsi:
3115 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3116 optarg, false);
3117 if (!opts) {
3118 exit(1);
3119 }
3120 break;
3121 #endif
3122 case QEMU_OPTION_audio_help:
3123 audio_legacy_help();
3124 exit (0);
3125 break;
3126 case QEMU_OPTION_audiodev:
3127 audio_parse_option(optarg);
3128 break;
3129 case QEMU_OPTION_soundhw:
3130 select_soundhw (optarg);
3131 break;
3132 case QEMU_OPTION_h:
3133 help(0);
3134 break;
3135 case QEMU_OPTION_version:
3136 version();
3137 exit(0);
3138 break;
3139 case QEMU_OPTION_m:
3140 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3141 optarg, true);
3142 if (!opts) {
3143 exit(EXIT_FAILURE);
3144 }
3145 break;
3146 #ifdef CONFIG_TPM
3147 case QEMU_OPTION_tpmdev:
3148 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3149 exit(1);
3150 }
3151 break;
3152 #endif
3153 case QEMU_OPTION_mempath:
3154 mem_path = optarg;
3155 break;
3156 case QEMU_OPTION_mem_prealloc:
3157 mem_prealloc = 1;
3158 break;
3159 case QEMU_OPTION_d:
3160 log_mask = optarg;
3161 break;
3162 case QEMU_OPTION_D:
3163 log_file = optarg;
3164 break;
3165 case QEMU_OPTION_DFILTER:
3166 qemu_set_dfilter_ranges(optarg, &error_fatal);
3167 break;
3168 case QEMU_OPTION_seed:
3169 qemu_guest_random_seed_main(optarg, &error_fatal);
3170 break;
3171 case QEMU_OPTION_s:
3172 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3173 break;
3174 case QEMU_OPTION_gdb:
3175 add_device_config(DEV_GDB, optarg);
3176 break;
3177 case QEMU_OPTION_L:
3178 if (is_help_option(optarg)) {
3179 list_data_dirs = true;
3180 } else {
3181 qemu_add_data_dir(optarg);
3182 }
3183 break;
3184 case QEMU_OPTION_bios:
3185 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3186 &error_abort);
3187 break;
3188 case QEMU_OPTION_singlestep:
3189 singlestep = 1;
3190 break;
3191 case QEMU_OPTION_S:
3192 autostart = 0;
3193 break;
3194 case QEMU_OPTION_k:
3195 keyboard_layout = optarg;
3196 break;
3197 case QEMU_OPTION_vga:
3198 vga_model = optarg;
3199 default_vga = 0;
3200 break;
3201 case QEMU_OPTION_g:
3202 {
3203 const char *p;
3204 int w, h, depth;
3205 p = optarg;
3206 w = strtol(p, (char **)&p, 10);
3207 if (w <= 0) {
3208 graphic_error:
3209 error_report("invalid resolution or depth");
3210 exit(1);
3211 }
3212 if (*p != 'x')
3213 goto graphic_error;
3214 p++;
3215 h = strtol(p, (char **)&p, 10);
3216 if (h <= 0)
3217 goto graphic_error;
3218 if (*p == 'x') {
3219 p++;
3220 depth = strtol(p, (char **)&p, 10);
3221 if (depth != 1 && depth != 2 && depth != 4 &&
3222 depth != 8 && depth != 15 && depth != 16 &&
3223 depth != 24 && depth != 32)
3224 goto graphic_error;
3225 } else if (*p == '\0') {
3226 depth = graphic_depth;
3227 } else {
3228 goto graphic_error;
3229 }
3230
3231 graphic_width = w;
3232 graphic_height = h;
3233 graphic_depth = depth;
3234 }
3235 break;
3236 case QEMU_OPTION_echr:
3237 {
3238 char *r;
3239 term_escape_char = strtol(optarg, &r, 0);
3240 if (r == optarg)
3241 printf("Bad argument to echr\n");
3242 break;
3243 }
3244 case QEMU_OPTION_monitor:
3245 default_monitor = 0;
3246 if (strncmp(optarg, "none", 4)) {
3247 monitor_parse(optarg, "readline", false);
3248 }
3249 break;
3250 case QEMU_OPTION_qmp:
3251 monitor_parse(optarg, "control", false);
3252 default_monitor = 0;
3253 break;
3254 case QEMU_OPTION_qmp_pretty:
3255 monitor_parse(optarg, "control", true);
3256 default_monitor = 0;
3257 break;
3258 case QEMU_OPTION_mon:
3259 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3260 true);
3261 if (!opts) {
3262 exit(1);
3263 }
3264 default_monitor = 0;
3265 break;
3266 case QEMU_OPTION_chardev:
3267 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3268 optarg, true);
3269 if (!opts) {
3270 exit(1);
3271 }
3272 break;
3273 case QEMU_OPTION_fsdev:
3274 olist = qemu_find_opts("fsdev");
3275 if (!olist) {
3276 error_report("fsdev support is disabled");
3277 exit(1);
3278 }
3279 opts = qemu_opts_parse_noisily(olist, optarg, true);
3280 if (!opts) {
3281 exit(1);
3282 }
3283 break;
3284 case QEMU_OPTION_virtfs: {
3285 QemuOpts *fsdev;
3286 QemuOpts *device;
3287 const char *writeout, *sock_fd, *socket, *path, *security_model,
3288 *multidevs;
3289
3290 olist = qemu_find_opts("virtfs");
3291 if (!olist) {
3292 error_report("virtfs support is disabled");
3293 exit(1);
3294 }
3295 opts = qemu_opts_parse_noisily(olist, optarg, true);
3296 if (!opts) {
3297 exit(1);
3298 }
3299
3300 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3301 qemu_opt_get(opts, "mount_tag") == NULL) {
3302 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3303 exit(1);
3304 }
3305 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3306 qemu_opts_id(opts) ?:
3307 qemu_opt_get(opts, "mount_tag"),
3308 1, NULL);
3309 if (!fsdev) {
3310 error_report("duplicate or invalid fsdev id: %s",
3311 qemu_opt_get(opts, "mount_tag"));
3312 exit(1);
3313 }
3314
3315 writeout = qemu_opt_get(opts, "writeout");
3316 if (writeout) {
3317 #ifdef CONFIG_SYNC_FILE_RANGE
3318 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3319 #else
3320 error_report("writeout=immediate not supported "
3321 "on this platform");
3322 exit(1);
3323 #endif
3324 }
3325 qemu_opt_set(fsdev, "fsdriver",
3326 qemu_opt_get(opts, "fsdriver"), &error_abort);
3327 path = qemu_opt_get(opts, "path");
3328 if (path) {
3329 qemu_opt_set(fsdev, "path", path, &error_abort);
3330 }
3331 security_model = qemu_opt_get(opts, "security_model");
3332 if (security_model) {
3333 qemu_opt_set(fsdev, "security_model", security_model,
3334 &error_abort);
3335 }
3336 socket = qemu_opt_get(opts, "socket");
3337 if (socket) {
3338 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3339 }
3340 sock_fd = qemu_opt_get(opts, "sock_fd");
3341 if (sock_fd) {
3342 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3343 }
3344
3345 qemu_opt_set_bool(fsdev, "readonly",
3346 qemu_opt_get_bool(opts, "readonly", 0),
3347 &error_abort);
3348 multidevs = qemu_opt_get(opts, "multidevs");
3349 if (multidevs) {
3350 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3351 }
3352 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3353 &error_abort);
3354 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3355 qemu_opt_set(device, "fsdev",
3356 qemu_opts_id(fsdev), &error_abort);
3357 qemu_opt_set(device, "mount_tag",
3358 qemu_opt_get(opts, "mount_tag"), &error_abort);
3359 break;
3360 }
3361 case QEMU_OPTION_serial:
3362 add_device_config(DEV_SERIAL, optarg);
3363 default_serial = 0;
3364 if (strncmp(optarg, "mon:", 4) == 0) {
3365 default_monitor = 0;
3366 }
3367 break;
3368 case QEMU_OPTION_watchdog:
3369 if (watchdog) {
3370 error_report("only one watchdog option may be given");
3371 exit(1);
3372 }
3373 watchdog = optarg;
3374 break;
3375 case QEMU_OPTION_watchdog_action:
3376 if (select_watchdog_action(optarg) == -1) {
3377 error_report("unknown -watchdog-action parameter");
3378 exit(1);
3379 }
3380 break;
3381 case QEMU_OPTION_parallel:
3382 add_device_config(DEV_PARALLEL, optarg);
3383 default_parallel = 0;
3384 if (strncmp(optarg, "mon:", 4) == 0) {
3385 default_monitor = 0;
3386 }
3387 break;
3388 case QEMU_OPTION_debugcon:
3389 add_device_config(DEV_DEBUGCON, optarg);
3390 break;
3391 case QEMU_OPTION_loadvm:
3392 loadvm = optarg;
3393 break;
3394 case QEMU_OPTION_full_screen:
3395 dpy.has_full_screen = true;
3396 dpy.full_screen = true;
3397 break;
3398 case QEMU_OPTION_alt_grab:
3399 alt_grab = 1;
3400 break;
3401 case QEMU_OPTION_ctrl_grab:
3402 ctrl_grab = 1;
3403 break;
3404 case QEMU_OPTION_no_quit:
3405 dpy.has_window_close = true;
3406 dpy.window_close = false;
3407 break;
3408 case QEMU_OPTION_sdl:
3409 #ifdef CONFIG_SDL
3410 dpy.type = DISPLAY_TYPE_SDL;
3411 break;
3412 #else
3413 error_report("SDL support is disabled");
3414 exit(1);
3415 #endif
3416 case QEMU_OPTION_pidfile:
3417 pid_file = optarg;
3418 break;
3419 case QEMU_OPTION_win2k_hack:
3420 win2k_install_hack = 1;
3421 break;
3422 case QEMU_OPTION_acpitable:
3423 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3424 optarg, true);
3425 if (!opts) {
3426 exit(1);
3427 }
3428 acpi_table_add(opts, &error_fatal);
3429 break;
3430 case QEMU_OPTION_smbios:
3431 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3432 optarg, false);
3433 if (!opts) {
3434 exit(1);
3435 }
3436 smbios_entry_add(opts, &error_fatal);
3437 break;
3438 case QEMU_OPTION_fwcfg:
3439 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3440 optarg, true);
3441 if (opts == NULL) {
3442 exit(1);
3443 }
3444 break;
3445 case QEMU_OPTION_preconfig:
3446 preconfig_exit_requested = false;
3447 break;
3448 case QEMU_OPTION_enable_kvm:
3449 olist = qemu_find_opts("machine");
3450 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3451 break;
3452 case QEMU_OPTION_M:
3453 case QEMU_OPTION_machine:
3454 olist = qemu_find_opts("machine");
3455 opts = qemu_opts_parse_noisily(olist, optarg, true);
3456 if (!opts) {
3457 exit(1);
3458 }
3459 break;
3460 case QEMU_OPTION_no_kvm:
3461 olist = qemu_find_opts("machine");
3462 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3463 break;
3464 case QEMU_OPTION_accel:
3465 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3466 optarg, true);
3467 optarg = qemu_opt_get(accel_opts, "accel");
3468 if (!optarg || is_help_option(optarg)) {
3469 printf("Accelerators supported in QEMU binary:\n");
3470 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3471 false);
3472 for (el = accel_list; el; el = el->next) {
3473 gchar *typename = g_strdup(object_class_get_name(
3474 OBJECT_CLASS(el->data)));
3475 /* omit qtest which is used for tests only */
3476 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3477 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3478 gchar **optname = g_strsplit(typename,
3479 ACCEL_CLASS_SUFFIX, 0);
3480 printf("%s\n", optname[0]);
3481 g_strfreev(optname);
3482 }
3483 g_free(typename);
3484 }
3485 g_slist_free(accel_list);
3486 exit(0);
3487 }
3488 if (optarg && strchr(optarg, ':')) {
3489 error_report("Don't use ':' with -accel, "
3490 "use -M accel=... for now instead");
3491 exit(1);
3492 }
3493 break;
3494 case QEMU_OPTION_usb:
3495 olist = qemu_find_opts("machine");
3496 qemu_opts_parse_noisily(olist, "usb=on", false);
3497 break;
3498 case QEMU_OPTION_usbdevice:
3499 error_report("'-usbdevice' is deprecated, please use "
3500 "'-device usb-...' instead");
3501 olist = qemu_find_opts("machine");
3502 qemu_opts_parse_noisily(olist, "usb=on", false);
3503 add_device_config(DEV_USB, optarg);
3504 break;
3505 case QEMU_OPTION_device:
3506 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3507 optarg, true)) {
3508 exit(1);
3509 }
3510 break;
3511 case QEMU_OPTION_smp:
3512 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3513 optarg, true)) {
3514 exit(1);
3515 }
3516 break;
3517 case QEMU_OPTION_vnc:
3518 vnc_parse(optarg, &error_fatal);
3519 break;
3520 case QEMU_OPTION_no_acpi:
3521 olist = qemu_find_opts("machine");
3522 qemu_opts_parse_noisily(olist, "acpi=off", false);
3523 break;
3524 case QEMU_OPTION_no_hpet:
3525 no_hpet = 1;
3526 break;
3527 case QEMU_OPTION_no_reboot:
3528 no_reboot = 1;
3529 break;
3530 case QEMU_OPTION_no_shutdown:
3531 no_shutdown = 1;
3532 break;
3533 case QEMU_OPTION_show_cursor:
3534 warn_report("The -show-cursor option is deprecated, "
3535 "use -display {sdl,gtk},show-cursor=on instead");
3536 dpy.has_show_cursor = true;
3537 dpy.show_cursor = true;
3538 break;
3539 case QEMU_OPTION_uuid:
3540 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3541 error_report("failed to parse UUID string: wrong format");
3542 exit(1);
3543 }
3544 qemu_uuid_set = true;
3545 break;
3546 case QEMU_OPTION_option_rom:
3547 if (nb_option_roms >= MAX_OPTION_ROMS) {
3548 error_report("too many option ROMs");
3549 exit(1);
3550 }
3551 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3552 optarg, true);
3553 if (!opts) {
3554 exit(1);
3555 }
3556 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3557 option_rom[nb_option_roms].bootindex =
3558 qemu_opt_get_number(opts, "bootindex", -1);
3559 if (!option_rom[nb_option_roms].name) {
3560 error_report("Option ROM file is not specified");
3561 exit(1);
3562 }
3563 nb_option_roms++;
3564 break;
3565 case QEMU_OPTION_semihosting:
3566 qemu_semihosting_enable();
3567 break;
3568 case QEMU_OPTION_semihosting_config:
3569 if (qemu_semihosting_config_options(optarg) != 0) {
3570 exit(1);
3571 }
3572 break;
3573 case QEMU_OPTION_name:
3574 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3575 optarg, true);
3576 if (!opts) {
3577 exit(1);
3578 }
3579 break;
3580 case QEMU_OPTION_prom_env:
3581 if (nb_prom_envs >= MAX_PROM_ENVS) {
3582 error_report("too many prom variables");
3583 exit(1);
3584 }
3585 prom_envs[nb_prom_envs] = optarg;
3586 nb_prom_envs++;
3587 break;
3588 case QEMU_OPTION_old_param:
3589 old_param = 1;
3590 break;
3591 case QEMU_OPTION_rtc:
3592 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3593 false);
3594 if (!opts) {
3595 exit(1);
3596 }
3597 break;
3598 case QEMU_OPTION_tb_size:
3599 #ifndef CONFIG_TCG
3600 error_report("TCG is disabled");
3601 exit(1);
3602 #endif
3603 warn_report("The -tb-size option is deprecated, use -accel tcg,tb-size instead");
3604 object_register_sugar_prop(ACCEL_CLASS_NAME("tcg"), "tb-size", optarg);
3605 break;
3606 case QEMU_OPTION_icount:
3607 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3608 optarg, true);
3609 if (!icount_opts) {
3610 exit(1);
3611 }
3612 break;
3613 case QEMU_OPTION_incoming:
3614 if (!incoming) {
3615 runstate_set(RUN_STATE_INMIGRATE);
3616 }
3617 incoming = optarg;
3618 break;
3619 case QEMU_OPTION_only_migratable:
3620 only_migratable = 1;
3621 break;
3622 case QEMU_OPTION_nodefaults:
3623 has_defaults = 0;
3624 break;
3625 case QEMU_OPTION_xen_domid:
3626 if (!(xen_available())) {
3627 error_report("Option not supported for this target");
3628 exit(1);
3629 }
3630 xen_domid = atoi(optarg);
3631 break;
3632 case QEMU_OPTION_xen_attach:
3633 if (!(xen_available())) {
3634 error_report("Option not supported for this target");
3635 exit(1);
3636 }
3637 xen_mode = XEN_ATTACH;
3638 break;
3639 case QEMU_OPTION_xen_domid_restrict:
3640 if (!(xen_available())) {
3641 error_report("Option not supported for this target");
3642 exit(1);
3643 }
3644 xen_domid_restrict = true;
3645 break;
3646 case QEMU_OPTION_trace:
3647 g_free(trace_file);
3648 trace_file = trace_opt_parse(optarg);
3649 break;
3650 case QEMU_OPTION_trace_unassigned:
3651 trace_unassigned = true;
3652 break;
3653 case QEMU_OPTION_plugin:
3654 qemu_plugin_opt_parse(optarg, &plugin_list);
3655 break;
3656 case QEMU_OPTION_readconfig:
3657 {
3658 int ret = qemu_read_config_file(optarg);
3659 if (ret < 0) {
3660 error_report("read config %s: %s", optarg,
3661 strerror(-ret));
3662 exit(1);
3663 }
3664 break;
3665 }
3666 case QEMU_OPTION_spice:
3667 olist = qemu_find_opts("spice");
3668 if (!olist) {
3669 error_report("spice support is disabled");
3670 exit(1);
3671 }
3672 opts = qemu_opts_parse_noisily(olist, optarg, false);
3673 if (!opts) {
3674 exit(1);
3675 }
3676 display_remote++;
3677 break;
3678 case QEMU_OPTION_writeconfig:
3679 {
3680 FILE *fp;
3681 if (strcmp(optarg, "-") == 0) {
3682 fp = stdout;
3683 } else {
3684 fp = fopen(optarg, "w");
3685 if (fp == NULL) {
3686 error_report("open %s: %s", optarg,
3687 strerror(errno));
3688 exit(1);
3689 }
3690 }
3691 qemu_config_write(fp);
3692 if (fp != stdout) {
3693 fclose(fp);
3694 }
3695 break;
3696 }
3697 case QEMU_OPTION_qtest:
3698 qtest_chrdev = optarg;
3699 break;
3700 case QEMU_OPTION_qtest_log:
3701 qtest_log = optarg;
3702 break;
3703 case QEMU_OPTION_sandbox:
3704 olist = qemu_find_opts("sandbox");
3705 if (!olist) {
3706 #ifndef CONFIG_SECCOMP
3707 error_report("-sandbox support is not enabled "
3708 "in this QEMU binary");
3709 #endif
3710 exit(1);
3711 }
3712
3713 opts = qemu_opts_parse_noisily(olist, optarg, true);
3714 if (!opts) {
3715 exit(1);
3716 }
3717 break;
3718 case QEMU_OPTION_add_fd:
3719 #ifndef _WIN32
3720 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3721 optarg, false);
3722 if (!opts) {
3723 exit(1);
3724 }
3725 #else
3726 error_report("File descriptor passing is disabled on this "
3727 "platform");
3728 exit(1);
3729 #endif
3730 break;
3731 case QEMU_OPTION_object:
3732 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3733 optarg, true);
3734 if (!opts) {
3735 exit(1);
3736 }
3737 break;
3738 case QEMU_OPTION_realtime:
3739 warn_report("'-realtime mlock=...' is deprecated, please use "
3740 "'-overcommit mem-lock=...' instead");
3741 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3742 optarg, false);
3743 if (!opts) {
3744 exit(1);
3745 }
3746 /* Don't override the -overcommit option if set */
3747 enable_mlock = enable_mlock ||
3748 qemu_opt_get_bool(opts, "mlock", true);
3749 break;
3750 case QEMU_OPTION_overcommit:
3751 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3752 optarg, false);
3753 if (!opts) {
3754 exit(1);
3755 }
3756 /* Don't override the -realtime option if set */
3757 enable_mlock = enable_mlock ||
3758 qemu_opt_get_bool(opts, "mem-lock", false);
3759 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3760 break;
3761 case QEMU_OPTION_msg:
3762 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3763 false);
3764 if (!opts) {
3765 exit(1);
3766 }
3767 configure_msg(opts);
3768 break;
3769 case QEMU_OPTION_dump_vmstate:
3770 if (vmstate_dump_file) {
3771 error_report("only one '-dump-vmstate' "
3772 "option may be given");
3773 exit(1);
3774 }
3775 vmstate_dump_file = fopen(optarg, "w");
3776 if (vmstate_dump_file == NULL) {
3777 error_report("open %s: %s", optarg, strerror(errno));
3778 exit(1);
3779 }
3780 break;
3781 case QEMU_OPTION_enable_sync_profile:
3782 qsp_enable();
3783 break;
3784 case QEMU_OPTION_nouserconfig:
3785 /* Nothing to be parsed here. Especially, do not error out below. */
3786 break;
3787 default:
3788 if (os_parse_cmd_args(popt->index, optarg)) {
3789 error_report("Option not supported in this build");
3790 exit(1);
3791 }
3792 }
3793 }
3794 }
3795 /*
3796 * Clear error location left behind by the loop.
3797 * Best done right after the loop. Do not insert code here!
3798 */
3799 loc_set_none();
3800
3801 /*
3802 * Check for -cpu help and -device help before we call select_machine(),
3803 * which will return an error if the architecture has no default machine
3804 * type and the user did not specify one, so that the user doesn't need
3805 * to say '-cpu help -machine something'.
3806 */
3807 if (cpu_option && is_help_option(cpu_option)) {
3808 list_cpus(cpu_option);
3809 exit(0);
3810 }
3811
3812 if (qemu_opts_foreach(qemu_find_opts("device"),
3813 device_help_func, NULL, NULL)) {
3814 exit(0);
3815 }
3816
3817 user_register_global_props();
3818
3819 replay_configure(icount_opts);
3820
3821 if (incoming && !preconfig_exit_requested) {
3822 error_report("'preconfig' and 'incoming' options are "
3823 "mutually exclusive");
3824 exit(EXIT_FAILURE);
3825 }
3826
3827 configure_rtc(qemu_find_opts_singleton("rtc"));
3828
3829 machine_class = select_machine();
3830 object_set_machine_compat_props(machine_class->compat_props);
3831
3832 have_custom_ram_size = set_memory_options(&ram_slots, &maxram_size,
3833 machine_class);
3834
3835 os_daemonize();
3836
3837 /*
3838 * If QTest is enabled, keep the rcu_atfork enabled, since system processes
3839 * may be forked testing purposes (e.g. fork-server based fuzzing) The fork
3840 * should happen before a signle cpu instruction is executed, to prevent
3841 * deadlocks. See commit 73c6e40, rcu: "completely disable pthread_atfork
3842 * callbacks as soon as possible"
3843 */
3844 if (!qtest_enabled()) {
3845 rcu_disable_atfork();
3846 }
3847
3848 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3849 error_reportf_err(err, "cannot create PID file: ");
3850 exit(1);
3851 }
3852
3853 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3854 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3855
3856 if (qemu_init_main_loop(&main_loop_err)) {
3857 error_report_err(main_loop_err);
3858 exit(1);
3859 }
3860
3861 #ifdef CONFIG_SECCOMP
3862 olist = qemu_find_opts_err("sandbox", NULL);
3863 if (olist) {
3864 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3865 }
3866 #endif
3867
3868 qemu_opts_foreach(qemu_find_opts("name"),
3869 parse_name, NULL, &error_fatal);
3870
3871 #ifndef _WIN32
3872 qemu_opts_foreach(qemu_find_opts("add-fd"),
3873 parse_add_fd, NULL, &error_fatal);
3874
3875 qemu_opts_foreach(qemu_find_opts("add-fd"),
3876 cleanup_add_fd, NULL, &error_fatal);
3877 #endif
3878
3879 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
3880 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3881 exit(0);
3882 }
3883 object_property_add_child(object_get_root(), "machine",
3884 OBJECT(current_machine), &error_abort);
3885 object_property_add_child(container_get(OBJECT(current_machine),
3886 "/unattached"),
3887 "sysbus", OBJECT(sysbus_get_default()),
3888 NULL);
3889
3890 if (machine_class->minimum_page_bits) {
3891 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3892 /* This would be a board error: specifying a minimum smaller than
3893 * a target's compile-time fixed setting.
3894 */
3895 g_assert_not_reached();
3896 }
3897 }
3898
3899 cpu_exec_init_all();
3900
3901 if (machine_class->hw_version) {
3902 qemu_set_hw_version(machine_class->hw_version);
3903 }
3904
3905 if (!trace_init_backends()) {
3906 exit(1);
3907 }
3908 trace_init_file(trace_file);
3909
3910 /* Open the logfile at this point and set the log mask if necessary.
3911 */
3912 qemu_set_log_filename(log_file, &error_fatal);
3913 if (log_mask) {
3914 int mask;
3915 mask = qemu_str_to_log_mask(log_mask);
3916 if (!mask) {
3917 qemu_print_log_usage(stdout);
3918 exit(1);
3919 }
3920 qemu_set_log(mask);
3921 } else {
3922 qemu_set_log(0);
3923 }
3924
3925 /* add configured firmware directories */
3926 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3927 for (i = 0; dirs[i] != NULL; i++) {
3928 qemu_add_data_dir(dirs[i]);
3929 }
3930 g_strfreev(dirs);
3931
3932 /* try to find datadir relative to the executable path */
3933 dir = os_find_datadir();
3934 qemu_add_data_dir(dir);
3935 g_free(dir);
3936
3937 /* add the datadir specified when building */
3938 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3939
3940 /* -L help lists the data directories and exits. */
3941 if (list_data_dirs) {
3942 for (i = 0; i < data_dir_idx; i++) {
3943 printf("%s\n", data_dir[i]);
3944 }
3945 exit(0);
3946 }
3947
3948 /* machine_class: default to UP */
3949 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3950 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3951 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3952
3953 /* default to machine_class->default_cpus */
3954 current_machine->smp.cpus = machine_class->default_cpus;
3955 current_machine->smp.max_cpus = machine_class->default_cpus;
3956 current_machine->smp.cores = 1;
3957 current_machine->smp.threads = 1;
3958 current_machine->smp.sockets = 1;
3959
3960 machine_class->smp_parse(current_machine,
3961 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3962
3963 /* sanity-check smp_cpus and max_cpus against machine_class */
3964 if (current_machine->smp.cpus < machine_class->min_cpus) {
3965 error_report("Invalid SMP CPUs %d. The min CPUs "
3966 "supported by machine '%s' is %d",
3967 current_machine->smp.cpus,
3968 machine_class->name, machine_class->min_cpus);
3969 exit(1);
3970 }
3971 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3972 error_report("Invalid SMP CPUs %d. The max CPUs "
3973 "supported by machine '%s' is %d",
3974 current_machine->smp.max_cpus,
3975 machine_class->name, machine_class->max_cpus);
3976 exit(1);
3977 }
3978
3979 if (mem_prealloc) {
3980 char *val;
3981
3982 val = g_strdup_printf("%d", current_machine->smp.cpus);
3983 object_register_sugar_prop("memory-backend", "prealloc-threads", val);
3984 g_free(val);
3985 object_register_sugar_prop("memory-backend", "prealloc", "on");
3986 }
3987
3988 /*
3989 * Get the default machine options from the machine if it is not already
3990 * specified either by the configuration file or by the command line.
3991 */
3992 if (machine_class->default_machine_opts) {
3993 qemu_opts_set_defaults(qemu_find_opts("machine"),
3994 machine_class->default_machine_opts, 0);
3995 }
3996
3997 /* process plugin before CPUs are created, but once -smp has been parsed */
3998 if (qemu_plugin_load_list(&plugin_list)) {
3999 exit(1);
4000 }
4001
4002 qemu_opts_foreach(qemu_find_opts("device"),
4003 default_driver_check, NULL, NULL);
4004 qemu_opts_foreach(qemu_find_opts("global"),
4005 default_driver_check, NULL, NULL);
4006
4007 if (!vga_model && !default_vga) {
4008 vga_interface_type = VGA_DEVICE;
4009 }
4010 if (!has_defaults || machine_class->no_serial) {
4011 default_serial = 0;
4012 }
4013 if (!has_defaults || machine_class->no_parallel) {
4014 default_parallel = 0;
4015 }
4016 if (!has_defaults || machine_class->no_floppy) {
4017 default_floppy = 0;
4018 }
4019 if (!has_defaults || machine_class->no_cdrom) {
4020 default_cdrom = 0;
4021 }
4022 if (!has_defaults || machine_class->no_sdcard) {
4023 default_sdcard = 0;
4024 }
4025 if (!has_defaults) {
4026 default_monitor = 0;
4027 default_net = 0;
4028 default_vga = 0;
4029 }
4030
4031 if (is_daemonized()) {
4032 if (!preconfig_exit_requested) {
4033 error_report("'preconfig' and 'daemonize' options are "
4034 "mutually exclusive");
4035 exit(EXIT_FAILURE);
4036 }
4037
4038 /* According to documentation and historically, -nographic redirects
4039 * serial port, parallel port and monitor to stdio, which does not work
4040 * with -daemonize. We can redirect these to null instead, but since
4041 * -nographic is legacy, let's just error out.
4042 * We disallow -nographic only if all other ports are not redirected
4043 * explicitly, to not break existing legacy setups which uses
4044 * -nographic _and_ redirects all ports explicitly - this is valid
4045 * usage, -nographic is just a no-op in this case.
4046 */
4047 if (nographic
4048 && (default_parallel || default_serial || default_monitor)) {
4049 error_report("-nographic cannot be used with -daemonize");
4050 exit(1);
4051 }
4052 #ifdef CONFIG_CURSES
4053 if (dpy.type == DISPLAY_TYPE_CURSES) {
4054 error_report("curses display cannot be used with -daemonize");
4055 exit(1);
4056 }
4057 #endif
4058 }
4059
4060 if (nographic) {
4061 if (default_parallel)
4062 add_device_config(DEV_PARALLEL, "null");
4063 if (default_serial && default_monitor) {
4064 add_device_config(DEV_SERIAL, "mon:stdio");
4065 } else {
4066 if (default_serial)
4067 add_device_config(DEV_SERIAL, "stdio");
4068 if (default_monitor)
4069 monitor_parse("stdio", "readline", false);
4070 }
4071 } else {
4072 if (default_serial)
4073 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4074 if (default_parallel)
4075 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4076 if (default_monitor)
4077 monitor_parse("vc:80Cx24C", "readline", false);
4078 }
4079
4080 #if defined(CONFIG_VNC)
4081 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4082 display_remote++;
4083 }
4084 #endif
4085 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4086 if (!qemu_display_find_default(&dpy)) {
4087 dpy.type = DISPLAY_TYPE_NONE;
4088 #if defined(CONFIG_VNC)
4089 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4090 #endif
4091 }
4092 }
4093 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4094 dpy.type = DISPLAY_TYPE_NONE;
4095 }
4096
4097 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4098 error_report("-alt-grab and -ctrl-grab are only valid "
4099 "for SDL, ignoring option");
4100 }
4101 if (dpy.has_window_close &&
4102 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4103 error_report("-no-quit is only valid for GTK and SDL, "
4104 "ignoring option");
4105 }
4106
4107 qemu_display_early_init(&dpy);
4108 qemu_console_early_init();
4109
4110 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4111 #if defined(CONFIG_OPENGL)
4112 error_report("OpenGL is not supported by the display");
4113 #else
4114 error_report("OpenGL support is disabled");
4115 #endif
4116 exit(1);
4117 }
4118
4119 page_size_init();
4120 socket_init();
4121
4122 qemu_opts_foreach(qemu_find_opts("object"),
4123 user_creatable_add_opts_foreach,
4124 object_create_initial, &error_fatal);
4125
4126 qemu_opts_foreach(qemu_find_opts("chardev"),
4127 chardev_init_func, NULL, &error_fatal);
4128 /* now chardevs have been created we may have semihosting to connect */
4129 qemu_semihosting_connect_chardevs();
4130
4131 #ifdef CONFIG_VIRTFS
4132 qemu_opts_foreach(qemu_find_opts("fsdev"),
4133 fsdev_init_func, NULL, &error_fatal);
4134 #endif
4135
4136 /*
4137 * Note: we need to create block backends before
4138 * machine_set_property(), so machine properties can refer to
4139 * them.
4140 */
4141 configure_blockdev(&bdo_queue, machine_class, snapshot);
4142
4143 machine_opts = qemu_get_machine_opts();
4144 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4145 &error_fatal);
4146
4147 /*
4148 * Note: uses machine properties such as kernel-irqchip, must run
4149 * after machine_set_property().
4150 */
4151 configure_accelerators(argv[0]);
4152
4153 /*
4154 * Beware, QOM objects created before this point miss global and
4155 * compat properties.
4156 *
4157 * Global properties get set up by qdev_prop_register_global(),
4158 * called from user_register_global_props(), and certain option
4159 * desugaring. Also in CPU feature desugaring (buried in
4160 * parse_cpu_option()), which happens below this point, but may
4161 * only target the CPU type, which can only be created after
4162 * parse_cpu_option() returned the type.
4163 *
4164 * Machine compat properties: object_set_machine_compat_props().
4165 * Accelerator compat props: object_set_accelerator_compat_props(),
4166 * called from configure_accelerator().
4167 */
4168
4169 if (!qtest_enabled() && machine_class->deprecation_reason) {
4170 error_report("Machine type '%s' is deprecated: %s",
4171 machine_class->name, machine_class->deprecation_reason);
4172 }
4173
4174 /*
4175 * Note: creates a QOM object, must run only after global and
4176 * compat properties have been set up.
4177 */
4178 migration_object_init();
4179
4180 if (qtest_chrdev) {
4181 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
4182 }
4183
4184 machine_opts = qemu_get_machine_opts();
4185 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4186 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4187 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4188 bios_name = qemu_opt_get(machine_opts, "firmware");
4189
4190 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4191 if (opts) {
4192 boot_order = qemu_opt_get(opts, "order");
4193 if (boot_order) {
4194 validate_bootdevices(boot_order, &error_fatal);
4195 }
4196
4197 boot_once = qemu_opt_get(opts, "once");
4198 if (boot_once) {
4199 validate_bootdevices(boot_once, &error_fatal);
4200 }
4201
4202 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4203 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4204 }
4205
4206 if (!boot_order) {
4207 boot_order = machine_class->default_boot_order;
4208 }
4209
4210 if (!kernel_cmdline) {
4211 kernel_cmdline = "";
4212 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4213 }
4214
4215 linux_boot = (kernel_filename != NULL);
4216
4217 if (!linux_boot && *kernel_cmdline != '\0') {
4218 error_report("-append only allowed with -kernel option");
4219 exit(1);
4220 }
4221
4222 if (!linux_boot && initrd_filename != NULL) {
4223 error_report("-initrd only allowed with -kernel option");
4224 exit(1);
4225 }
4226
4227 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4228 /* fall back to the -kernel/-append */
4229 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4230 }
4231
4232 /* spice needs the timers to be initialized by this point */
4233 qemu_spice_init();
4234
4235 cpu_ticks_init();
4236
4237 if (default_net) {
4238 QemuOptsList *net = qemu_find_opts("net");
4239 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4240 #ifdef CONFIG_SLIRP
4241 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4242 #endif
4243 }
4244
4245 if (net_init_clients(&err) < 0) {
4246 error_report_err(err);
4247 exit(1);
4248 }
4249
4250 qemu_opts_foreach(qemu_find_opts("object"),
4251 user_creatable_add_opts_foreach,
4252 object_create_delayed, &error_fatal);
4253
4254 tpm_init();
4255
4256 blk_mig_init();
4257 ram_mig_init();
4258 dirty_bitmap_mig_init();
4259
4260 qemu_opts_foreach(qemu_find_opts("mon"),
4261 mon_init_func, NULL, &error_fatal);
4262
4263 /* connect semihosting console input if requested */
4264 qemu_semihosting_console_init();
4265
4266 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4267 exit(1);
4268 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4269 exit(1);
4270 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4271 exit(1);
4272
4273 /* If no default VGA is requested, the default is "none". */
4274 if (default_vga) {
4275 vga_model = get_default_vga_model(machine_class);
4276 }
4277 if (vga_model) {
4278 select_vgahw(machine_class, vga_model);
4279 }
4280
4281 if (watchdog) {
4282 i = select_watchdog(watchdog);
4283 if (i > 0)
4284 exit (i == 1 ? 1 : 0);
4285 }
4286
4287 /* This checkpoint is required by replay to separate prior clock
4288 reading from the other reads, because timer polling functions query
4289 clock values from the log. */
4290 replay_checkpoint(CHECKPOINT_INIT);
4291 qdev_machine_init();
4292
4293 current_machine->boot_order = boot_order;
4294
4295 /* parse features once if machine provides default cpu_type */
4296 current_machine->cpu_type = machine_class->default_cpu_type;
4297 if (cpu_option) {
4298 current_machine->cpu_type = parse_cpu_option(cpu_option);
4299 }
4300
4301 if (current_machine->ram_memdev_id) {
4302 Object *backend;
4303 ram_addr_t backend_size;
4304
4305 backend = object_resolve_path_type(current_machine->ram_memdev_id,
4306 TYPE_MEMORY_BACKEND, NULL);
4307 backend_size = object_property_get_uint(backend, "size", &error_abort);
4308 if (have_custom_ram_size && backend_size != ram_size) {
4309 error_report("Size specified by -m option must match size of "
4310 "explicitly specified 'memory-backend' property");
4311 exit(EXIT_FAILURE);
4312 }
4313 ram_size = backend_size;
4314 }
4315
4316 if (!xen_enabled()) {
4317 /* On 32-bit hosts, QEMU is limited by virtual address space */
4318 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4319 error_report("at most 2047 MB RAM can be simulated");
4320 exit(1);
4321 }
4322 }
4323
4324 current_machine->ram_size = ram_size;
4325 current_machine->maxram_size = maxram_size;
4326 current_machine->ram_slots = ram_slots;
4327
4328 parse_numa_opts(current_machine);
4329
4330 if (machine_class->default_ram_id && current_machine->ram_size &&
4331 numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
4332 create_default_memdev(current_machine, mem_path);
4333 }
4334 /* do monitor/qmp handling at preconfig state if requested */
4335 qemu_main_loop();
4336
4337 audio_init_audiodevs();
4338
4339 /* from here on runstate is RUN_STATE_PRELAUNCH */
4340 machine_run_board_init(current_machine);
4341
4342 realtime_init();
4343
4344 soundhw_init();
4345
4346 if (hax_enabled()) {
4347 hax_sync_vcpus();
4348 }
4349
4350 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4351 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4352
4353 /* init USB devices */
4354 if (machine_usb(current_machine)) {
4355 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4356 exit(1);
4357 }
4358
4359 /* init generic devices */
4360 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4361 qemu_opts_foreach(qemu_find_opts("device"),
4362 device_init_func, NULL, &error_fatal);
4363
4364 cpu_synchronize_all_post_init();
4365
4366 rom_reset_order_override();
4367
4368 /* Did we create any drives that we failed to create a device for? */
4369 drive_check_orphaned();
4370
4371 /* Don't warn about the default network setup that you get if
4372 * no command line -net or -netdev options are specified. There
4373 * are two cases that we would otherwise complain about:
4374 * (1) board doesn't support a NIC but the implicit "-net nic"
4375 * requested one
4376 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4377 * sets up a nic that isn't connected to anything.
4378 */
4379 if (!default_net && (!qtest_enabled() || has_defaults)) {
4380 net_check_clients();
4381 }
4382
4383 if (boot_once) {
4384 qemu_boot_set(boot_once, &error_fatal);
4385 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4386 }
4387
4388 /* init local displays */
4389 ds = init_displaystate();
4390 qemu_display_init(ds, &dpy);
4391
4392 /* must be after terminal init, SDL library changes signal handlers */
4393 os_setup_signal_handling();
4394
4395 /* init remote displays */
4396 #ifdef CONFIG_VNC
4397 qemu_opts_foreach(qemu_find_opts("vnc"),
4398 vnc_init_func, NULL, &error_fatal);
4399 #endif
4400
4401 if (using_spice) {
4402 qemu_spice_display_init();
4403 }
4404
4405 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4406 exit(1);
4407 }
4408
4409 qdev_machine_creation_done();
4410
4411 /* TODO: once all bus devices are qdevified, this should be done
4412 * when bus is created by qdev.c */
4413 /*
4414 * TODO: If we had a main 'reset container' that the whole system
4415 * lived in, we could reset that using the multi-phase reset
4416 * APIs. For the moment, we just reset the sysbus, which will cause
4417 * all devices hanging off it (and all their child buses, recursively)
4418 * to be reset. Note that this will *not* reset any Device objects
4419 * which are not attached to some part of the qbus tree!
4420 */
4421 qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
4422 qemu_run_machine_init_done_notifiers();
4423
4424 if (rom_check_and_register_reset() != 0) {
4425 error_report("rom check and register reset failed");
4426 exit(1);
4427 }
4428
4429 replay_start();
4430
4431 /* This checkpoint is required by replay to separate prior clock
4432 reading from the other reads, because timer polling functions query
4433 clock values from the log. */
4434 replay_checkpoint(CHECKPOINT_RESET);
4435 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4436 register_global_state();
4437 if (loadvm) {
4438 Error *local_err = NULL;
4439 if (load_snapshot(loadvm, &local_err) < 0) {
4440 error_report_err(local_err);
4441 autostart = 0;
4442 exit(1);
4443 }
4444 }
4445 if (replay_mode != REPLAY_MODE_NONE) {
4446 replay_vmstate_init();
4447 }
4448
4449 qdev_prop_check_globals();
4450 if (vmstate_dump_file) {
4451 /* dump and exit */
4452 dump_vmstate_json_to_file(vmstate_dump_file);
4453 exit(0);
4454 }
4455
4456 if (incoming) {
4457 Error *local_err = NULL;
4458 qemu_start_incoming_migration(incoming, &local_err);
4459 if (local_err) {
4460 error_reportf_err(local_err, "-incoming %s: ", incoming);
4461 exit(1);
4462 }
4463 } else if (autostart) {
4464 vm_start();
4465 }
4466
4467 accel_setup_post(current_machine);
4468 os_setup_post();
4469
4470 return;
4471 }
4472
4473 void qemu_cleanup(void)
4474 {
4475 gdbserver_cleanup();
4476
4477 /*
4478 * cleaning up the migration object cancels any existing migration
4479 * try to do this early so that it also stops using devices.
4480 */
4481 migration_shutdown();
4482
4483 /*
4484 * We must cancel all block jobs while the block layer is drained,
4485 * or cancelling will be affected by throttling and thus may block
4486 * for an extended period of time.
4487 * vm_shutdown() will bdrv_drain_all(), so we may as well include
4488 * it in the drained section.
4489 * We do not need to end this section, because we do not want any
4490 * requests happening from here on anyway.
4491 */
4492 bdrv_drain_all_begin();
4493
4494 /* No more vcpu or device emulation activity beyond this point */
4495 vm_shutdown();
4496 replay_finish();
4497
4498 job_cancel_sync_all();
4499 bdrv_close_all();
4500
4501 res_free();
4502
4503 /* vhost-user must be cleaned up before chardevs. */
4504 tpm_cleanup();
4505 net_cleanup();
4506 audio_cleanup();
4507 monitor_cleanup();
4508 qemu_chr_cleanup();
4509 user_creatable_cleanup();
4510 /* TODO: unref root container, check all devices are ok */
4511 }
AR7 emulation for QEMU