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block/nbd: refactor nbd connection parameters
[qemu/kevin.git] / vl.c
blobb426b3213461210565bd1db15a0c89d71e9fea7c
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 "qapi/error.h"
29 #include "qemu-version.h"
30 #include "qemu/cutils.h"
31 #include "qemu/help_option.h"
32 #include "qemu/uuid.h"
33 #include "sysemu/seccomp.h"
34 #include "sysemu/tcg.h"
35
36 #ifdef CONFIG_SDL
37 #if defined(__APPLE__) || defined(main)
38 #include <SDL.h>
39 int qemu_main(int argc, char **argv, char **envp);
40 int main(int argc, char **argv)
41 {
42 return qemu_main(argc, argv, NULL);
43 }
44 #undef main
45 #define main qemu_main
46 #endif
47 #endif /* CONFIG_SDL */
48
49 #ifdef CONFIG_COCOA
50 #undef main
51 #define main qemu_main
52 #endif /* CONFIG_COCOA */
53
54
55 #include "qemu/error-report.h"
56 #include "qemu/sockets.h"
57 #include "hw/hw.h"
58 #include "sysemu/accel.h"
59 #include "hw/usb.h"
60 #include "hw/isa/isa.h"
61 #include "hw/scsi/scsi.h"
62 #include "hw/display/vga.h"
63 #include "hw/bt.h"
64 #include "sysemu/watchdog.h"
65 #include "hw/firmware/smbios.h"
66 #include "hw/acpi/acpi.h"
67 #include "hw/xen/xen.h"
68 #include "hw/qdev.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "sysemu/bt.h"
72 #include "net/net.h"
73 #include "net/slirp.h"
74 #include "monitor/monitor.h"
75 #include "ui/console.h"
76 #include "ui/input.h"
77 #include "sysemu/sysemu.h"
78 #include "sysemu/numa.h"
79 #include "exec/gdbstub.h"
80 #include "qemu/timer.h"
81 #include "chardev/char.h"
82 #include "qemu/bitmap.h"
83 #include "qemu/log.h"
84 #include "sysemu/blockdev.h"
85 #include "hw/block/block.h"
86 #include "migration/misc.h"
87 #include "migration/snapshot.h"
88 #include "migration/global_state.h"
89 #include "sysemu/tpm.h"
90 #include "sysemu/dma.h"
91 #include "hw/audio/soundhw.h"
92 #include "audio/audio.h"
93 #include "sysemu/cpus.h"
94 #include "migration/colo.h"
95 #include "migration/postcopy-ram.h"
96 #include "sysemu/kvm.h"
97 #include "sysemu/hax.h"
98 #include "qapi/qobject-input-visitor.h"
99 #include "qemu/option.h"
100 #include "qemu/config-file.h"
101 #include "qemu-options.h"
102 #include "qemu/main-loop.h"
103 #ifdef CONFIG_VIRTFS
104 #include "fsdev/qemu-fsdev.h"
105 #endif
106 #include "sysemu/qtest.h"
107
108 #include "disas/disas.h"
109
110 #include "trace-root.h"
111 #include "trace/control.h"
112 #include "qemu/queue.h"
113 #include "sysemu/arch_init.h"
114
115 #include "ui/qemu-spice.h"
116 #include "qapi/string-input-visitor.h"
117 #include "qapi/opts-visitor.h"
118 #include "qapi/clone-visitor.h"
119 #include "qom/object_interfaces.h"
120 #include "hw/semihosting/semihost.h"
121 #include "crypto/init.h"
122 #include "sysemu/replay.h"
123 #include "qapi/qapi-events-run-state.h"
124 #include "qapi/qapi-visit-block-core.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
132
133 #define MAX_VIRTIO_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int display_opengl;
140 const char* keyboard_layout = NULL;
141 ram_addr_t ram_size;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 bool enable_cpu_pm = false;
146 int nb_nics;
147 NICInfo nd_table[MAX_NICS];
148 int autostart;
149 static enum {
150 RTC_BASE_UTC,
151 RTC_BASE_LOCALTIME,
152 RTC_BASE_DATETIME,
153 } rtc_base_type = RTC_BASE_UTC;
154 static time_t rtc_ref_start_datetime;
155 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
156 static int rtc_host_datetime_offset = -1; /* valid & used only with
157 RTC_BASE_DATETIME */
158 QEMUClockType rtc_clock;
159 int vga_interface_type = VGA_NONE;
160 static DisplayOptions dpy;
161 static int num_serial_hds;
162 static Chardev **serial_hds;
163 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
164 int win2k_install_hack = 0;
165 int singlestep = 0;
166 int acpi_enabled = 1;
167 int no_hpet = 0;
168 int fd_bootchk = 1;
169 static int no_reboot;
170 int no_shutdown = 0;
171 int cursor_hide = 1;
172 int graphic_rotate = 0;
173 const char *watchdog;
174 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
175 int nb_option_roms;
176 int old_param = 0;
177 const char *qemu_name;
178 int alt_grab = 0;
179 int ctrl_grab = 0;
180 unsigned int nb_prom_envs = 0;
181 const char *prom_envs[MAX_PROM_ENVS];
182 int boot_menu;
183 bool boot_strict;
184 uint8_t *boot_splash_filedata;
185 int only_migratable; /* turn it off unless user states otherwise */
186 bool wakeup_suspend_enabled;
187
188 int icount_align_option;
189
190 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
191 * little-endian "wire format" described in the SMBIOS 2.6 specification.
192 */
193 QemuUUID qemu_uuid;
194 bool qemu_uuid_set;
195
196 static NotifierList exit_notifiers =
197 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
198
199 static NotifierList machine_init_done_notifiers =
200 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
201
202 bool xen_allowed;
203 uint32_t xen_domid;
204 enum xen_mode xen_mode = XEN_EMULATE;
205 bool xen_domid_restrict;
206
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_monitor = 1;
211 static int default_floppy = 1;
212 static int default_cdrom = 1;
213 static int default_sdcard = 1;
214 static int default_vga = 1;
215 static int default_net = 1;
216
217 static struct {
218 const char *driver;
219 int *flag;
220 } default_list[] = {
221 { .driver = "isa-serial", .flag = &default_serial },
222 { .driver = "isa-parallel", .flag = &default_parallel },
223 { .driver = "isa-fdc", .flag = &default_floppy },
224 { .driver = "floppy", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .flag = &default_cdrom },
229 { .driver = "scsi-hd", .flag = &default_cdrom },
230 { .driver = "VGA", .flag = &default_vga },
231 { .driver = "isa-vga", .flag = &default_vga },
232 { .driver = "cirrus-vga", .flag = &default_vga },
233 { .driver = "isa-cirrus-vga", .flag = &default_vga },
234 { .driver = "vmware-svga", .flag = &default_vga },
235 { .driver = "qxl-vga", .flag = &default_vga },
236 { .driver = "virtio-vga", .flag = &default_vga },
237 { .driver = "ati-vga", .flag = &default_vga },
238 { .driver = "vhost-user-vga", .flag = &default_vga },
239 };
240
241 static QemuOptsList qemu_rtc_opts = {
242 .name = "rtc",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
244 .merge_lists = true,
245 .desc = {
246 {
247 .name = "base",
248 .type = QEMU_OPT_STRING,
249 },{
250 .name = "clock",
251 .type = QEMU_OPT_STRING,
252 },{
253 .name = "driftfix",
254 .type = QEMU_OPT_STRING,
255 },
256 { /* end of list */ }
257 },
258 };
259
260 static QemuOptsList qemu_option_rom_opts = {
261 .name = "option-rom",
262 .implied_opt_name = "romfile",
263 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
264 .desc = {
265 {
266 .name = "bootindex",
267 .type = QEMU_OPT_NUMBER,
268 }, {
269 .name = "romfile",
270 .type = QEMU_OPT_STRING,
271 },
272 { /* end of list */ }
273 },
274 };
275
276 static QemuOptsList qemu_machine_opts = {
277 .name = "machine",
278 .implied_opt_name = "type",
279 .merge_lists = true,
280 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
281 .desc = {
282 /*
283 * no elements => accept any
284 * sanity checking will happen later
285 * when setting machine properties
286 */
287 { }
288 },
289 };
290
291 static QemuOptsList qemu_accel_opts = {
292 .name = "accel",
293 .implied_opt_name = "accel",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
295 .merge_lists = true,
296 .desc = {
297 {
298 .name = "accel",
299 .type = QEMU_OPT_STRING,
300 .help = "Select the type of accelerator",
301 },
302 {
303 .name = "thread",
304 .type = QEMU_OPT_STRING,
305 .help = "Enable/disable multi-threaded TCG",
306 },
307 { /* end of list */ }
308 },
309 };
310
311 static QemuOptsList qemu_boot_opts = {
312 .name = "boot-opts",
313 .implied_opt_name = "order",
314 .merge_lists = true,
315 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
316 .desc = {
317 {
318 .name = "order",
319 .type = QEMU_OPT_STRING,
320 }, {
321 .name = "once",
322 .type = QEMU_OPT_STRING,
323 }, {
324 .name = "menu",
325 .type = QEMU_OPT_BOOL,
326 }, {
327 .name = "splash",
328 .type = QEMU_OPT_STRING,
329 }, {
330 .name = "splash-time",
331 .type = QEMU_OPT_NUMBER,
332 }, {
333 .name = "reboot-timeout",
334 .type = QEMU_OPT_NUMBER,
335 }, {
336 .name = "strict",
337 .type = QEMU_OPT_BOOL,
338 },
339 { /*End of list */ }
340 },
341 };
342
343 static QemuOptsList qemu_add_fd_opts = {
344 .name = "add-fd",
345 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
346 .desc = {
347 {
348 .name = "fd",
349 .type = QEMU_OPT_NUMBER,
350 .help = "file descriptor of which a duplicate is added to fd set",
351 },{
352 .name = "set",
353 .type = QEMU_OPT_NUMBER,
354 .help = "ID of the fd set to add fd to",
355 },{
356 .name = "opaque",
357 .type = QEMU_OPT_STRING,
358 .help = "free-form string used to describe fd",
359 },
360 { /* end of list */ }
361 },
362 };
363
364 static QemuOptsList qemu_object_opts = {
365 .name = "object",
366 .implied_opt_name = "qom-type",
367 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
368 .desc = {
369 { }
370 },
371 };
372
373 static QemuOptsList qemu_tpmdev_opts = {
374 .name = "tpmdev",
375 .implied_opt_name = "type",
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
377 .desc = {
378 /* options are defined in the TPM backends */
379 { /* end of list */ }
380 },
381 };
382
383 static QemuOptsList qemu_realtime_opts = {
384 .name = "realtime",
385 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
386 .desc = {
387 {
388 .name = "mlock",
389 .type = QEMU_OPT_BOOL,
390 },
391 { /* end of list */ }
392 },
393 };
394
395 static QemuOptsList qemu_overcommit_opts = {
396 .name = "overcommit",
397 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
398 .desc = {
399 {
400 .name = "mem-lock",
401 .type = QEMU_OPT_BOOL,
402 },
403 {
404 .name = "cpu-pm",
405 .type = QEMU_OPT_BOOL,
406 },
407 { /* end of list */ }
408 },
409 };
410
411 static QemuOptsList qemu_msg_opts = {
412 .name = "msg",
413 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
414 .desc = {
415 {
416 .name = "timestamp",
417 .type = QEMU_OPT_BOOL,
418 },
419 { /* end of list */ }
420 },
421 };
422
423 static QemuOptsList qemu_name_opts = {
424 .name = "name",
425 .implied_opt_name = "guest",
426 .merge_lists = true,
427 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
428 .desc = {
429 {
430 .name = "guest",
431 .type = QEMU_OPT_STRING,
432 .help = "Sets the name of the guest.\n"
433 "This name will be displayed in the SDL window caption.\n"
434 "The name will also be used for the VNC server",
435 }, {
436 .name = "process",
437 .type = QEMU_OPT_STRING,
438 .help = "Sets the name of the QEMU process, as shown in top etc",
439 }, {
440 .name = "debug-threads",
441 .type = QEMU_OPT_BOOL,
442 .help = "When enabled, name the individual threads; defaults off.\n"
443 "NOTE: The thread names are for debugging and not a\n"
444 "stable API.",
445 },
446 { /* End of list */ }
447 },
448 };
449
450 static QemuOptsList qemu_mem_opts = {
451 .name = "memory",
452 .implied_opt_name = "size",
453 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
454 .merge_lists = true,
455 .desc = {
456 {
457 .name = "size",
458 .type = QEMU_OPT_SIZE,
459 },
460 {
461 .name = "slots",
462 .type = QEMU_OPT_NUMBER,
463 },
464 {
465 .name = "maxmem",
466 .type = QEMU_OPT_SIZE,
467 },
468 { /* end of list */ }
469 },
470 };
471
472 static QemuOptsList qemu_icount_opts = {
473 .name = "icount",
474 .implied_opt_name = "shift",
475 .merge_lists = true,
476 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
477 .desc = {
478 {
479 .name = "shift",
480 .type = QEMU_OPT_STRING,
481 }, {
482 .name = "align",
483 .type = QEMU_OPT_BOOL,
484 }, {
485 .name = "sleep",
486 .type = QEMU_OPT_BOOL,
487 }, {
488 .name = "rr",
489 .type = QEMU_OPT_STRING,
490 }, {
491 .name = "rrfile",
492 .type = QEMU_OPT_STRING,
493 }, {
494 .name = "rrsnapshot",
495 .type = QEMU_OPT_STRING,
496 },
497 { /* end of list */ }
498 },
499 };
500
501 static QemuOptsList qemu_fw_cfg_opts = {
502 .name = "fw_cfg",
503 .implied_opt_name = "name",
504 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
505 .desc = {
506 {
507 .name = "name",
508 .type = QEMU_OPT_STRING,
509 .help = "Sets the fw_cfg name of the blob to be inserted",
510 }, {
511 .name = "file",
512 .type = QEMU_OPT_STRING,
513 .help = "Sets the name of the file from which "
514 "the fw_cfg blob will be loaded",
515 }, {
516 .name = "string",
517 .type = QEMU_OPT_STRING,
518 .help = "Sets content of the blob to be inserted from a string",
519 },
520 { /* end of list */ }
521 },
522 };
523
524 /**
525 * Get machine options
526 *
527 * Returns: machine options (never null).
528 */
529 QemuOpts *qemu_get_machine_opts(void)
530 {
531 return qemu_find_opts_singleton("machine");
532 }
533
534 const char *qemu_get_vm_name(void)
535 {
536 return qemu_name;
537 }
538
539 static void res_free(void)
540 {
541 g_free(boot_splash_filedata);
542 boot_splash_filedata = NULL;
543 }
544
545 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
546 {
547 const char *driver = qemu_opt_get(opts, "driver");
548 int i;
549
550 if (!driver)
551 return 0;
552 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
553 if (strcmp(default_list[i].driver, driver) != 0)
554 continue;
555 *(default_list[i].flag) = 0;
556 }
557 return 0;
558 }
559
560 /***********************************************************/
561 /* QEMU state */
562
563 static RunState current_run_state = RUN_STATE_PRECONFIG;
564
565 /* We use RUN_STATE__MAX but any invalid value will do */
566 static RunState vmstop_requested = RUN_STATE__MAX;
567 static QemuMutex vmstop_lock;
568
569 typedef struct {
570 RunState from;
571 RunState to;
572 } RunStateTransition;
573
574 static const RunStateTransition runstate_transitions_def[] = {
575 /* from -> to */
576 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
577 /* Early switch to inmigrate state to allow -incoming CLI option work
578 * as it used to. TODO: delay actual switching to inmigrate state to
579 * the point after machine is built and remove this hack.
580 */
581 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
582
583 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
584 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
585 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
586
587 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
588 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
589 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
590 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
591 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
592 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
593 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
594 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
595 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
596 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
597 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
598 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
599
600 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
601 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
602 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
603
604 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
605 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
607
608 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
609 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
610 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
611 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
612 { RUN_STATE_PAUSED, RUN_STATE_COLO},
613
614 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
615 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
616 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
617
618 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
619 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
621
622 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
623 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
624 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
625 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
626 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
627
628 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
629 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
630
631 { RUN_STATE_COLO, RUN_STATE_RUNNING },
632
633 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
634 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
635 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
636 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
637 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
638 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
639 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
640 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
641 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
642 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
643 { RUN_STATE_RUNNING, RUN_STATE_COLO},
644
645 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
646
647 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
648 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
649 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
650
651 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
652 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
653 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
654 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
655 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
656 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
657
658 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
659 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
660 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
661 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
662
663 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
664 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
665 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
666
667 { RUN_STATE__MAX, RUN_STATE__MAX },
668 };
669
670 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
671
672 bool runstate_check(RunState state)
673 {
674 return current_run_state == state;
675 }
676
677 bool runstate_store(char *str, size_t size)
678 {
679 const char *state = RunState_str(current_run_state);
680 size_t len = strlen(state) + 1;
681
682 if (len > size) {
683 return false;
684 }
685 memcpy(str, state, len);
686 return true;
687 }
688
689 static void runstate_init(void)
690 {
691 const RunStateTransition *p;
692
693 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
694 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
695 runstate_valid_transitions[p->from][p->to] = true;
696 }
697
698 qemu_mutex_init(&vmstop_lock);
699 }
700
701 /* This function will abort() on invalid state transitions */
702 void runstate_set(RunState new_state)
703 {
704 assert(new_state < RUN_STATE__MAX);
705
706 trace_runstate_set(current_run_state, RunState_str(current_run_state),
707 new_state, RunState_str(new_state));
708
709 if (current_run_state == new_state) {
710 return;
711 }
712
713 if (!runstate_valid_transitions[current_run_state][new_state]) {
714 error_report("invalid runstate transition: '%s' -> '%s'",
715 RunState_str(current_run_state),
716 RunState_str(new_state));
717 abort();
718 }
719
720 current_run_state = new_state;
721 }
722
723 int runstate_is_running(void)
724 {
725 return runstate_check(RUN_STATE_RUNNING);
726 }
727
728 bool runstate_needs_reset(void)
729 {
730 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
731 runstate_check(RUN_STATE_SHUTDOWN);
732 }
733
734 StatusInfo *qmp_query_status(Error **errp)
735 {
736 StatusInfo *info = g_malloc0(sizeof(*info));
737
738 info->running = runstate_is_running();
739 info->singlestep = singlestep;
740 info->status = current_run_state;
741
742 return info;
743 }
744
745 bool qemu_vmstop_requested(RunState *r)
746 {
747 qemu_mutex_lock(&vmstop_lock);
748 *r = vmstop_requested;
749 vmstop_requested = RUN_STATE__MAX;
750 qemu_mutex_unlock(&vmstop_lock);
751 return *r < RUN_STATE__MAX;
752 }
753
754 void qemu_system_vmstop_request_prepare(void)
755 {
756 qemu_mutex_lock(&vmstop_lock);
757 }
758
759 void qemu_system_vmstop_request(RunState state)
760 {
761 vmstop_requested = state;
762 qemu_mutex_unlock(&vmstop_lock);
763 qemu_notify_event();
764 }
765
766 /***********************************************************/
767 /* RTC reference time/date access */
768 static time_t qemu_ref_timedate(QEMUClockType clock)
769 {
770 time_t value = qemu_clock_get_ms(clock) / 1000;
771 switch (clock) {
772 case QEMU_CLOCK_REALTIME:
773 value -= rtc_realtime_clock_offset;
774 /* no break */
775 case QEMU_CLOCK_VIRTUAL:
776 value += rtc_ref_start_datetime;
777 break;
778 case QEMU_CLOCK_HOST:
779 if (rtc_base_type == RTC_BASE_DATETIME) {
780 value -= rtc_host_datetime_offset;
781 }
782 break;
783 default:
784 assert(0);
785 }
786 return value;
787 }
788
789 void qemu_get_timedate(struct tm *tm, int offset)
790 {
791 time_t ti = qemu_ref_timedate(rtc_clock);
792
793 ti += offset;
794
795 switch (rtc_base_type) {
796 case RTC_BASE_DATETIME:
797 case RTC_BASE_UTC:
798 gmtime_r(&ti, tm);
799 break;
800 case RTC_BASE_LOCALTIME:
801 localtime_r(&ti, tm);
802 break;
803 }
804 }
805
806 int qemu_timedate_diff(struct tm *tm)
807 {
808 time_t seconds;
809
810 switch (rtc_base_type) {
811 case RTC_BASE_DATETIME:
812 case RTC_BASE_UTC:
813 seconds = mktimegm(tm);
814 break;
815 case RTC_BASE_LOCALTIME:
816 {
817 struct tm tmp = *tm;
818 tmp.tm_isdst = -1; /* use timezone to figure it out */
819 seconds = mktime(&tmp);
820 break;
821 }
822 default:
823 abort();
824 }
825
826 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
827 }
828
829 static void configure_rtc_base_datetime(const char *startdate)
830 {
831 time_t rtc_start_datetime;
832 struct tm tm;
833
834 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
835 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
836 /* OK */
837 } else if (sscanf(startdate, "%d-%d-%d",
838 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
839 tm.tm_hour = 0;
840 tm.tm_min = 0;
841 tm.tm_sec = 0;
842 } else {
843 goto date_fail;
844 }
845 tm.tm_year -= 1900;
846 tm.tm_mon--;
847 rtc_start_datetime = mktimegm(&tm);
848 if (rtc_start_datetime == -1) {
849 date_fail:
850 error_report("invalid datetime format");
851 error_printf("valid formats: "
852 "'2006-06-17T16:01:21' or '2006-06-17'\n");
853 exit(1);
854 }
855 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
856 rtc_ref_start_datetime = rtc_start_datetime;
857 }
858
859 static void configure_rtc(QemuOpts *opts)
860 {
861 const char *value;
862
863 /* Set defaults */
864 rtc_clock = QEMU_CLOCK_HOST;
865 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
866 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
867
868 value = qemu_opt_get(opts, "base");
869 if (value) {
870 if (!strcmp(value, "utc")) {
871 rtc_base_type = RTC_BASE_UTC;
872 } else if (!strcmp(value, "localtime")) {
873 Error *blocker = NULL;
874 rtc_base_type = RTC_BASE_LOCALTIME;
875 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
876 "-rtc base=localtime");
877 replay_add_blocker(blocker);
878 } else {
879 rtc_base_type = RTC_BASE_DATETIME;
880 configure_rtc_base_datetime(value);
881 }
882 }
883 value = qemu_opt_get(opts, "clock");
884 if (value) {
885 if (!strcmp(value, "host")) {
886 rtc_clock = QEMU_CLOCK_HOST;
887 } else if (!strcmp(value, "rt")) {
888 rtc_clock = QEMU_CLOCK_REALTIME;
889 } else if (!strcmp(value, "vm")) {
890 rtc_clock = QEMU_CLOCK_VIRTUAL;
891 } else {
892 error_report("invalid option value '%s'", value);
893 exit(1);
894 }
895 }
896 value = qemu_opt_get(opts, "driftfix");
897 if (value) {
898 if (!strcmp(value, "slew")) {
899 static GlobalProperty slew_lost_ticks = {
900 .driver = "mc146818rtc",
901 .property = "lost_tick_policy",
902 .value = "slew",
903 };
904
905 qdev_prop_register_global(&slew_lost_ticks);
906 } else if (!strcmp(value, "none")) {
907 /* discard is default */
908 } else {
909 error_report("invalid option value '%s'", value);
910 exit(1);
911 }
912 }
913 }
914
915 /***********************************************************/
916 /* Bluetooth support */
917 static int nb_hcis;
918 static int cur_hci;
919 static struct HCIInfo *hci_table[MAX_NICS];
920
921 struct HCIInfo *qemu_next_hci(void)
922 {
923 if (cur_hci == nb_hcis)
924 return &null_hci;
925
926 return hci_table[cur_hci++];
927 }
928
929 static int bt_hci_parse(const char *str)
930 {
931 struct HCIInfo *hci;
932 bdaddr_t bdaddr;
933
934 if (nb_hcis >= MAX_NICS) {
935 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
936 return -1;
937 }
938
939 hci = hci_init(str);
940 if (!hci)
941 return -1;
942
943 bdaddr.b[0] = 0x52;
944 bdaddr.b[1] = 0x54;
945 bdaddr.b[2] = 0x00;
946 bdaddr.b[3] = 0x12;
947 bdaddr.b[4] = 0x34;
948 bdaddr.b[5] = 0x56 + nb_hcis;
949 hci->bdaddr_set(hci, bdaddr.b);
950
951 hci_table[nb_hcis++] = hci;
952
953 return 0;
954 }
955
956 static void bt_vhci_add(int vlan_id)
957 {
958 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
959
960 if (!vlan->slave)
961 warn_report("adding a VHCI to an empty scatternet %i",
962 vlan_id);
963
964 bt_vhci_init(bt_new_hci(vlan));
965 }
966
967 static struct bt_device_s *bt_device_add(const char *opt)
968 {
969 struct bt_scatternet_s *vlan;
970 int vlan_id = 0;
971 char *endp = strstr(opt, ",vlan=");
972 int len = (endp ? endp - opt : strlen(opt)) + 1;
973 char devname[10];
974
975 pstrcpy(devname, MIN(sizeof(devname), len), opt);
976
977 if (endp) {
978 vlan_id = strtol(endp + 6, &endp, 0);
979 if (*endp) {
980 error_report("unrecognised bluetooth vlan Id");
981 return 0;
982 }
983 }
984
985 vlan = qemu_find_bt_vlan(vlan_id);
986
987 if (!vlan->slave)
988 warn_report("adding a slave device to an empty scatternet %i",
989 vlan_id);
990
991 if (!strcmp(devname, "keyboard"))
992 return bt_keyboard_init(vlan);
993
994 error_report("unsupported bluetooth device '%s'", devname);
995 return 0;
996 }
997
998 static int bt_parse(const char *opt)
999 {
1000 const char *endp, *p;
1001 int vlan;
1002
1003 if (strstart(opt, "hci", &endp)) {
1004 if (!*endp || *endp == ',') {
1005 if (*endp)
1006 if (!strstart(endp, ",vlan=", 0))
1007 opt = endp + 1;
1008
1009 return bt_hci_parse(opt);
1010 }
1011 } else if (strstart(opt, "vhci", &endp)) {
1012 if (!*endp || *endp == ',') {
1013 if (*endp) {
1014 if (strstart(endp, ",vlan=", &p)) {
1015 vlan = strtol(p, (char **) &endp, 0);
1016 if (*endp) {
1017 error_report("bad scatternet '%s'", p);
1018 return 1;
1019 }
1020 } else {
1021 error_report("bad parameter '%s'", endp + 1);
1022 return 1;
1023 }
1024 } else
1025 vlan = 0;
1026
1027 bt_vhci_add(vlan);
1028 return 0;
1029 }
1030 } else if (strstart(opt, "device:", &endp))
1031 return !bt_device_add(endp);
1032
1033 error_report("bad bluetooth parameter '%s'", opt);
1034 return 1;
1035 }
1036
1037 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1038 {
1039 const char *proc_name;
1040
1041 if (qemu_opt_get(opts, "debug-threads")) {
1042 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1043 }
1044 qemu_name = qemu_opt_get(opts, "guest");
1045
1046 proc_name = qemu_opt_get(opts, "process");
1047 if (proc_name) {
1048 os_set_proc_name(proc_name);
1049 }
1050
1051 return 0;
1052 }
1053
1054 bool defaults_enabled(void)
1055 {
1056 return has_defaults;
1057 }
1058
1059 #ifndef _WIN32
1060 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1061 {
1062 int fd, dupfd, flags;
1063 int64_t fdset_id;
1064 const char *fd_opaque = NULL;
1065 AddfdInfo *fdinfo;
1066
1067 fd = qemu_opt_get_number(opts, "fd", -1);
1068 fdset_id = qemu_opt_get_number(opts, "set", -1);
1069 fd_opaque = qemu_opt_get(opts, "opaque");
1070
1071 if (fd < 0) {
1072 error_setg(errp, "fd option is required and must be non-negative");
1073 return -1;
1074 }
1075
1076 if (fd <= STDERR_FILENO) {
1077 error_setg(errp, "fd cannot be a standard I/O stream");
1078 return -1;
1079 }
1080
1081 /*
1082 * All fds inherited across exec() necessarily have FD_CLOEXEC
1083 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1084 */
1085 flags = fcntl(fd, F_GETFD);
1086 if (flags == -1 || (flags & FD_CLOEXEC)) {
1087 error_setg(errp, "fd is not valid or already in use");
1088 return -1;
1089 }
1090
1091 if (fdset_id < 0) {
1092 error_setg(errp, "set option is required and must be non-negative");
1093 return -1;
1094 }
1095
1096 #ifdef F_DUPFD_CLOEXEC
1097 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1098 #else
1099 dupfd = dup(fd);
1100 if (dupfd != -1) {
1101 qemu_set_cloexec(dupfd);
1102 }
1103 #endif
1104 if (dupfd == -1) {
1105 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1106 return -1;
1107 }
1108
1109 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1110 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1111 &error_abort);
1112 g_free(fdinfo);
1113
1114 return 0;
1115 }
1116
1117 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1118 {
1119 int fd;
1120
1121 fd = qemu_opt_get_number(opts, "fd", -1);
1122 close(fd);
1123
1124 return 0;
1125 }
1126 #endif
1127
1128 /***********************************************************/
1129 /* QEMU Block devices */
1130
1131 #define HD_OPTS "media=disk"
1132 #define CDROM_OPTS "media=cdrom"
1133 #define FD_OPTS ""
1134 #define PFLASH_OPTS ""
1135 #define MTD_OPTS ""
1136 #define SD_OPTS ""
1137
1138 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1139 {
1140 BlockInterfaceType *block_default_type = opaque;
1141
1142 return drive_new(opts, *block_default_type, errp) == NULL;
1143 }
1144
1145 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1146 {
1147 if (qemu_opt_get(opts, "snapshot") == NULL) {
1148 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1149 }
1150 return 0;
1151 }
1152
1153 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1154 int index, const char *optstr)
1155 {
1156 QemuOpts *opts;
1157 DriveInfo *dinfo;
1158
1159 if (!enable || drive_get_by_index(type, index)) {
1160 return;
1161 }
1162
1163 opts = drive_add(type, index, NULL, optstr);
1164 if (snapshot) {
1165 drive_enable_snapshot(NULL, opts, NULL);
1166 }
1167
1168 dinfo = drive_new(opts, type, &error_abort);
1169 dinfo->is_default = true;
1170
1171 }
1172
1173 typedef struct BlockdevOptionsQueueEntry {
1174 BlockdevOptions *bdo;
1175 Location loc;
1176 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1177 } BlockdevOptionsQueueEntry;
1178
1179 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1180
1181 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1182 MachineClass *machine_class, int snapshot)
1183 {
1184 /*
1185 * If the currently selected machine wishes to override the
1186 * units-per-bus property of its default HBA interface type, do so
1187 * now.
1188 */
1189 if (machine_class->units_per_default_bus) {
1190 override_max_devs(machine_class->block_default_type,
1191 machine_class->units_per_default_bus);
1192 }
1193
1194 /* open the virtual block devices */
1195 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1196 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1197
1198 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1199 loc_push_restore(&bdo->loc);
1200 qmp_blockdev_add(bdo->bdo, &error_fatal);
1201 loc_pop(&bdo->loc);
1202 qapi_free_BlockdevOptions(bdo->bdo);
1203 g_free(bdo);
1204 }
1205 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1206 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1207 NULL, NULL);
1208 }
1209 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1210 &machine_class->block_default_type, &error_fatal)) {
1211 /* We printed help */
1212 exit(0);
1213 }
1214
1215 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1216 CDROM_OPTS);
1217 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1218 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1219
1220 }
1221
1222 static QemuOptsList qemu_smp_opts = {
1223 .name = "smp-opts",
1224 .implied_opt_name = "cpus",
1225 .merge_lists = true,
1226 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1227 .desc = {
1228 {
1229 .name = "cpus",
1230 .type = QEMU_OPT_NUMBER,
1231 }, {
1232 .name = "sockets",
1233 .type = QEMU_OPT_NUMBER,
1234 }, {
1235 .name = "dies",
1236 .type = QEMU_OPT_NUMBER,
1237 }, {
1238 .name = "cores",
1239 .type = QEMU_OPT_NUMBER,
1240 }, {
1241 .name = "threads",
1242 .type = QEMU_OPT_NUMBER,
1243 }, {
1244 .name = "maxcpus",
1245 .type = QEMU_OPT_NUMBER,
1246 },
1247 { /*End of list */ }
1248 },
1249 };
1250
1251 static void realtime_init(void)
1252 {
1253 if (enable_mlock) {
1254 if (os_mlock() < 0) {
1255 error_report("locking memory failed");
1256 exit(1);
1257 }
1258 }
1259 }
1260
1261
1262 static void configure_msg(QemuOpts *opts)
1263 {
1264 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1265 }
1266
1267
1268 /* Now we still need this for compatibility with XEN. */
1269 bool has_igd_gfx_passthru;
1270 static void igd_gfx_passthru(void)
1271 {
1272 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1273 }
1274
1275 /***********************************************************/
1276 /* USB devices */
1277
1278 static int usb_device_add(const char *devname)
1279 {
1280 USBDevice *dev = NULL;
1281
1282 if (!machine_usb(current_machine)) {
1283 return -1;
1284 }
1285
1286 dev = usbdevice_create(devname);
1287 if (!dev)
1288 return -1;
1289
1290 return 0;
1291 }
1292
1293 static int usb_parse(const char *cmdline)
1294 {
1295 int r;
1296 r = usb_device_add(cmdline);
1297 if (r < 0) {
1298 error_report("could not add USB device '%s'", cmdline);
1299 }
1300 return r;
1301 }
1302
1303 /***********************************************************/
1304 /* machine registration */
1305
1306 MachineState *current_machine;
1307
1308 static MachineClass *find_machine(const char *name, GSList *machines)
1309 {
1310 GSList *el;
1311
1312 for (el = machines; el; el = el->next) {
1313 MachineClass *mc = el->data;
1314
1315 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1316 return mc;
1317 }
1318 }
1319
1320 return NULL;
1321 }
1322
1323 static MachineClass *find_default_machine(GSList *machines)
1324 {
1325 GSList *el;
1326
1327 for (el = machines; el; el = el->next) {
1328 MachineClass *mc = el->data;
1329
1330 if (mc->is_default) {
1331 return mc;
1332 }
1333 }
1334
1335 return NULL;
1336 }
1337
1338 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1339 {
1340 ObjectProperty *prop;
1341 ObjectPropertyIterator iter;
1342
1343 if (!qemu_opt_has_help_opt(opts)) {
1344 return 0;
1345 }
1346
1347 object_property_iter_init(&iter, OBJECT(machine));
1348 while ((prop = object_property_iter_next(&iter))) {
1349 if (!prop->set) {
1350 continue;
1351 }
1352
1353 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1354 prop->name, prop->type);
1355 if (prop->description) {
1356 printf(" (%s)\n", prop->description);
1357 } else {
1358 printf("\n");
1359 }
1360 }
1361
1362 return 1;
1363 }
1364
1365 struct vm_change_state_entry {
1366 VMChangeStateHandler *cb;
1367 void *opaque;
1368 QTAILQ_ENTRY(vm_change_state_entry) entries;
1369 int priority;
1370 };
1371
1372 static QTAILQ_HEAD(, vm_change_state_entry) vm_change_state_head;
1373
1374 /**
1375 * qemu_add_vm_change_state_handler_prio:
1376 * @cb: the callback to invoke
1377 * @opaque: user data passed to the callback
1378 * @priority: low priorities execute first when the vm runs and the reverse is
1379 * true when the vm stops
1380 *
1381 * Register a callback function that is invoked when the vm starts or stops
1382 * running.
1383 *
1384 * Returns: an entry to be freed using qemu_del_vm_change_state_handler()
1385 */
1386 VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
1387 VMChangeStateHandler *cb, void *opaque, int priority)
1388 {
1389 VMChangeStateEntry *e;
1390 VMChangeStateEntry *other;
1391
1392 e = g_malloc0(sizeof(*e));
1393 e->cb = cb;
1394 e->opaque = opaque;
1395 e->priority = priority;
1396
1397 /* Keep list sorted in ascending priority order */
1398 QTAILQ_FOREACH(other, &vm_change_state_head, entries) {
1399 if (priority < other->priority) {
1400 QTAILQ_INSERT_BEFORE(other, e, entries);
1401 return e;
1402 }
1403 }
1404
1405 QTAILQ_INSERT_TAIL(&vm_change_state_head, e, entries);
1406 return e;
1407 }
1408
1409 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1410 void *opaque)
1411 {
1412 return qemu_add_vm_change_state_handler_prio(cb, opaque, 0);
1413 }
1414
1415 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1416 {
1417 QTAILQ_REMOVE(&vm_change_state_head, e, entries);
1418 g_free(e);
1419 }
1420
1421 void vm_state_notify(int running, RunState state)
1422 {
1423 VMChangeStateEntry *e, *next;
1424
1425 trace_vm_state_notify(running, state, RunState_str(state));
1426
1427 if (running) {
1428 QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1429 e->cb(e->opaque, running, state);
1430 }
1431 } else {
1432 QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
1433 e->cb(e->opaque, running, state);
1434 }
1435 }
1436 }
1437
1438 static ShutdownCause reset_requested;
1439 static ShutdownCause shutdown_requested;
1440 static int shutdown_signal;
1441 static pid_t shutdown_pid;
1442 static int powerdown_requested;
1443 static int debug_requested;
1444 static int suspend_requested;
1445 static bool preconfig_exit_requested = true;
1446 static WakeupReason wakeup_reason;
1447 static NotifierList powerdown_notifiers =
1448 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1449 static NotifierList suspend_notifiers =
1450 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1451 static NotifierList wakeup_notifiers =
1452 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1453 static NotifierList shutdown_notifiers =
1454 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1455 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1456
1457 ShutdownCause qemu_shutdown_requested_get(void)
1458 {
1459 return shutdown_requested;
1460 }
1461
1462 ShutdownCause qemu_reset_requested_get(void)
1463 {
1464 return reset_requested;
1465 }
1466
1467 static int qemu_shutdown_requested(void)
1468 {
1469 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1470 }
1471
1472 static void qemu_kill_report(void)
1473 {
1474 if (!qtest_driver() && shutdown_signal) {
1475 if (shutdown_pid == 0) {
1476 /* This happens for eg ^C at the terminal, so it's worth
1477 * avoiding printing an odd message in that case.
1478 */
1479 error_report("terminating on signal %d", shutdown_signal);
1480 } else {
1481 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1482
1483 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1484 shutdown_signal, shutdown_pid,
1485 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1486 g_free(shutdown_cmd);
1487 }
1488 shutdown_signal = 0;
1489 }
1490 }
1491
1492 static ShutdownCause qemu_reset_requested(void)
1493 {
1494 ShutdownCause r = reset_requested;
1495
1496 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1497 reset_requested = SHUTDOWN_CAUSE_NONE;
1498 return r;
1499 }
1500 return SHUTDOWN_CAUSE_NONE;
1501 }
1502
1503 static int qemu_suspend_requested(void)
1504 {
1505 int r = suspend_requested;
1506 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1507 suspend_requested = 0;
1508 return r;
1509 }
1510 return false;
1511 }
1512
1513 static WakeupReason qemu_wakeup_requested(void)
1514 {
1515 return wakeup_reason;
1516 }
1517
1518 static int qemu_powerdown_requested(void)
1519 {
1520 int r = powerdown_requested;
1521 powerdown_requested = 0;
1522 return r;
1523 }
1524
1525 static int qemu_debug_requested(void)
1526 {
1527 int r = debug_requested;
1528 debug_requested = 0;
1529 return r;
1530 }
1531
1532 void qemu_exit_preconfig_request(void)
1533 {
1534 preconfig_exit_requested = true;
1535 }
1536
1537 /*
1538 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1539 */
1540 void qemu_system_reset(ShutdownCause reason)
1541 {
1542 MachineClass *mc;
1543
1544 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1545
1546 cpu_synchronize_all_states();
1547
1548 if (mc && mc->reset) {
1549 mc->reset(current_machine);
1550 } else {
1551 qemu_devices_reset();
1552 }
1553 if (reason && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1554 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1555 }
1556 cpu_synchronize_all_post_reset();
1557 }
1558
1559 void qemu_system_guest_panicked(GuestPanicInformation *info)
1560 {
1561 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1562
1563 if (current_cpu) {
1564 current_cpu->crash_occurred = true;
1565 }
1566 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1567 !!info, info);
1568 vm_stop(RUN_STATE_GUEST_PANICKED);
1569 if (!no_shutdown) {
1570 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1571 !!info, info);
1572 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1573 }
1574
1575 if (info) {
1576 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1577 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1578 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1579 info->u.hyper_v.arg1,
1580 info->u.hyper_v.arg2,
1581 info->u.hyper_v.arg3,
1582 info->u.hyper_v.arg4,
1583 info->u.hyper_v.arg5);
1584 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1585 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1586 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1587 info->u.s390.core,
1588 S390CrashReason_str(info->u.s390.reason),
1589 info->u.s390.psw_mask,
1590 info->u.s390.psw_addr);
1591 }
1592 qapi_free_GuestPanicInformation(info);
1593 }
1594 }
1595
1596 void qemu_system_reset_request(ShutdownCause reason)
1597 {
1598 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1599 shutdown_requested = reason;
1600 } else {
1601 reset_requested = reason;
1602 }
1603 cpu_stop_current();
1604 qemu_notify_event();
1605 }
1606
1607 static void qemu_system_suspend(void)
1608 {
1609 pause_all_vcpus();
1610 notifier_list_notify(&suspend_notifiers, NULL);
1611 runstate_set(RUN_STATE_SUSPENDED);
1612 qapi_event_send_suspend();
1613 }
1614
1615 void qemu_system_suspend_request(void)
1616 {
1617 if (runstate_check(RUN_STATE_SUSPENDED)) {
1618 return;
1619 }
1620 suspend_requested = 1;
1621 cpu_stop_current();
1622 qemu_notify_event();
1623 }
1624
1625 void qemu_register_suspend_notifier(Notifier *notifier)
1626 {
1627 notifier_list_add(&suspend_notifiers, notifier);
1628 }
1629
1630 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1631 {
1632 trace_system_wakeup_request(reason);
1633
1634 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1635 error_setg(errp,
1636 "Unable to wake up: guest is not in suspended state");
1637 return;
1638 }
1639 if (!(wakeup_reason_mask & (1 << reason))) {
1640 return;
1641 }
1642 runstate_set(RUN_STATE_RUNNING);
1643 wakeup_reason = reason;
1644 qemu_notify_event();
1645 }
1646
1647 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1648 {
1649 if (enabled) {
1650 wakeup_reason_mask |= (1 << reason);
1651 } else {
1652 wakeup_reason_mask &= ~(1 << reason);
1653 }
1654 }
1655
1656 void qemu_register_wakeup_notifier(Notifier *notifier)
1657 {
1658 notifier_list_add(&wakeup_notifiers, notifier);
1659 }
1660
1661 void qemu_register_wakeup_support(void)
1662 {
1663 wakeup_suspend_enabled = true;
1664 }
1665
1666 bool qemu_wakeup_suspend_enabled(void)
1667 {
1668 return wakeup_suspend_enabled;
1669 }
1670
1671 void qemu_system_killed(int signal, pid_t pid)
1672 {
1673 shutdown_signal = signal;
1674 shutdown_pid = pid;
1675 no_shutdown = 0;
1676
1677 /* Cannot call qemu_system_shutdown_request directly because
1678 * we are in a signal handler.
1679 */
1680 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1681 qemu_notify_event();
1682 }
1683
1684 void qemu_system_shutdown_request(ShutdownCause reason)
1685 {
1686 trace_qemu_system_shutdown_request(reason);
1687 replay_shutdown_request(reason);
1688 shutdown_requested = reason;
1689 qemu_notify_event();
1690 }
1691
1692 static void qemu_system_powerdown(void)
1693 {
1694 qapi_event_send_powerdown();
1695 notifier_list_notify(&powerdown_notifiers, NULL);
1696 }
1697
1698 static void qemu_system_shutdown(ShutdownCause cause)
1699 {
1700 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1701 notifier_list_notify(&shutdown_notifiers, &cause);
1702 }
1703
1704 void qemu_system_powerdown_request(void)
1705 {
1706 trace_qemu_system_powerdown_request();
1707 powerdown_requested = 1;
1708 qemu_notify_event();
1709 }
1710
1711 void qemu_register_powerdown_notifier(Notifier *notifier)
1712 {
1713 notifier_list_add(&powerdown_notifiers, notifier);
1714 }
1715
1716 void qemu_register_shutdown_notifier(Notifier *notifier)
1717 {
1718 notifier_list_add(&shutdown_notifiers, notifier);
1719 }
1720
1721 void qemu_system_debug_request(void)
1722 {
1723 debug_requested = 1;
1724 qemu_notify_event();
1725 }
1726
1727 static bool main_loop_should_exit(void)
1728 {
1729 RunState r;
1730 ShutdownCause request;
1731
1732 if (preconfig_exit_requested) {
1733 if (runstate_check(RUN_STATE_PRECONFIG)) {
1734 runstate_set(RUN_STATE_PRELAUNCH);
1735 }
1736 preconfig_exit_requested = false;
1737 return true;
1738 }
1739 if (qemu_debug_requested()) {
1740 vm_stop(RUN_STATE_DEBUG);
1741 }
1742 if (qemu_suspend_requested()) {
1743 qemu_system_suspend();
1744 }
1745 request = qemu_shutdown_requested();
1746 if (request) {
1747 qemu_kill_report();
1748 qemu_system_shutdown(request);
1749 if (no_shutdown) {
1750 vm_stop(RUN_STATE_SHUTDOWN);
1751 } else {
1752 return true;
1753 }
1754 }
1755 request = qemu_reset_requested();
1756 if (request) {
1757 pause_all_vcpus();
1758 qemu_system_reset(request);
1759 resume_all_vcpus();
1760 if (!runstate_check(RUN_STATE_RUNNING) &&
1761 !runstate_check(RUN_STATE_INMIGRATE)) {
1762 runstate_set(RUN_STATE_PRELAUNCH);
1763 }
1764 }
1765 if (qemu_wakeup_requested()) {
1766 pause_all_vcpus();
1767 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1768 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1769 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1770 resume_all_vcpus();
1771 qapi_event_send_wakeup();
1772 }
1773 if (qemu_powerdown_requested()) {
1774 qemu_system_powerdown();
1775 }
1776 if (qemu_vmstop_requested(&r)) {
1777 vm_stop(r);
1778 }
1779 return false;
1780 }
1781
1782 static void main_loop(void)
1783 {
1784 #ifdef CONFIG_PROFILER
1785 int64_t ti;
1786 #endif
1787 while (!main_loop_should_exit()) {
1788 #ifdef CONFIG_PROFILER
1789 ti = profile_getclock();
1790 #endif
1791 main_loop_wait(false);
1792 #ifdef CONFIG_PROFILER
1793 dev_time += profile_getclock() - ti;
1794 #endif
1795 }
1796 }
1797
1798 static void version(void)
1799 {
1800 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1801 QEMU_COPYRIGHT "\n");
1802 }
1803
1804 static void help(int exitcode)
1805 {
1806 version();
1807 printf("usage: %s [options] [disk_image]\n\n"
1808 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1809 error_get_progname());
1810
1811 #define QEMU_OPTIONS_GENERATE_HELP
1812 #include "qemu-options-wrapper.h"
1813
1814 printf("\nDuring emulation, the following keys are useful:\n"
1815 "ctrl-alt-f toggle full screen\n"
1816 "ctrl-alt-n switch to virtual console 'n'\n"
1817 "ctrl-alt toggle mouse and keyboard grab\n"
1818 "\n"
1819 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1820 "\n"
1821 QEMU_HELP_BOTTOM "\n");
1822
1823 exit(exitcode);
1824 }
1825
1826 #define HAS_ARG 0x0001
1827
1828 typedef struct QEMUOption {
1829 const char *name;
1830 int flags;
1831 int index;
1832 uint32_t arch_mask;
1833 } QEMUOption;
1834
1835 static const QEMUOption qemu_options[] = {
1836 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1837 #define QEMU_OPTIONS_GENERATE_OPTIONS
1838 #include "qemu-options-wrapper.h"
1839 { NULL },
1840 };
1841
1842 typedef struct VGAInterfaceInfo {
1843 const char *opt_name; /* option name */
1844 const char *name; /* human-readable name */
1845 /* Class names indicating that support is available.
1846 * If no class is specified, the interface is always available */
1847 const char *class_names[2];
1848 } VGAInterfaceInfo;
1849
1850 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1851 [VGA_NONE] = {
1852 .opt_name = "none",
1853 .name = "no graphic card",
1854 },
1855 [VGA_STD] = {
1856 .opt_name = "std",
1857 .name = "standard VGA",
1858 .class_names = { "VGA", "isa-vga" },
1859 },
1860 [VGA_CIRRUS] = {
1861 .opt_name = "cirrus",
1862 .name = "Cirrus VGA",
1863 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1864 },
1865 [VGA_VMWARE] = {
1866 .opt_name = "vmware",
1867 .name = "VMWare SVGA",
1868 .class_names = { "vmware-svga" },
1869 },
1870 [VGA_VIRTIO] = {
1871 .opt_name = "virtio",
1872 .name = "Virtio VGA",
1873 .class_names = { "virtio-vga" },
1874 },
1875 [VGA_QXL] = {
1876 .opt_name = "qxl",
1877 .name = "QXL VGA",
1878 .class_names = { "qxl-vga" },
1879 },
1880 [VGA_TCX] = {
1881 .opt_name = "tcx",
1882 .name = "TCX framebuffer",
1883 .class_names = { "SUNW,tcx" },
1884 },
1885 [VGA_CG3] = {
1886 .opt_name = "cg3",
1887 .name = "CG3 framebuffer",
1888 .class_names = { "cgthree" },
1889 },
1890 [VGA_XENFB] = {
1891 .opt_name = "xenfb",
1892 .name = "Xen paravirtualized framebuffer",
1893 },
1894 };
1895
1896 static bool vga_interface_available(VGAInterfaceType t)
1897 {
1898 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1899
1900 assert(t < VGA_TYPE_MAX);
1901 return !ti->class_names[0] ||
1902 object_class_by_name(ti->class_names[0]) ||
1903 object_class_by_name(ti->class_names[1]);
1904 }
1905
1906 static const char *
1907 get_default_vga_model(const MachineClass *machine_class)
1908 {
1909 if (machine_class->default_display) {
1910 return machine_class->default_display;
1911 } else if (vga_interface_available(VGA_CIRRUS)) {
1912 return "cirrus";
1913 } else if (vga_interface_available(VGA_STD)) {
1914 return "std";
1915 }
1916
1917 return NULL;
1918 }
1919
1920 static void select_vgahw(const MachineClass *machine_class, const char *p)
1921 {
1922 const char *opts;
1923 int t;
1924
1925 if (g_str_equal(p, "help")) {
1926 const char *def = get_default_vga_model(machine_class);
1927
1928 for (t = 0; t < VGA_TYPE_MAX; t++) {
1929 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1930
1931 if (vga_interface_available(t) && ti->opt_name) {
1932 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1933 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1934 }
1935 }
1936 exit(0);
1937 }
1938
1939 assert(vga_interface_type == VGA_NONE);
1940 for (t = 0; t < VGA_TYPE_MAX; t++) {
1941 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1942 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1943 if (!vga_interface_available(t)) {
1944 error_report("%s not available", ti->name);
1945 exit(1);
1946 }
1947 vga_interface_type = t;
1948 break;
1949 }
1950 }
1951 if (t == VGA_TYPE_MAX) {
1952 invalid_vga:
1953 error_report("unknown vga type: %s", p);
1954 exit(1);
1955 }
1956 while (*opts) {
1957 const char *nextopt;
1958
1959 if (strstart(opts, ",retrace=", &nextopt)) {
1960 opts = nextopt;
1961 if (strstart(opts, "dumb", &nextopt))
1962 vga_retrace_method = VGA_RETRACE_DUMB;
1963 else if (strstart(opts, "precise", &nextopt))
1964 vga_retrace_method = VGA_RETRACE_PRECISE;
1965 else goto invalid_vga;
1966 } else goto invalid_vga;
1967 opts = nextopt;
1968 }
1969 }
1970
1971 static void parse_display_qapi(const char *optarg)
1972 {
1973 DisplayOptions *opts;
1974 Visitor *v;
1975
1976 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
1977
1978 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1979 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1980
1981 qapi_free_DisplayOptions(opts);
1982 visit_free(v);
1983 }
1984
1985 DisplayOptions *qmp_query_display_options(Error **errp)
1986 {
1987 return QAPI_CLONE(DisplayOptions, &dpy);
1988 }
1989
1990 static void parse_display(const char *p)
1991 {
1992 const char *opts;
1993
1994 if (strstart(p, "sdl", &opts)) {
1995 /*
1996 * sdl DisplayType needs hand-crafted parser instead of
1997 * parse_display_qapi() due to some options not in
1998 * DisplayOptions, specifically:
1999 * - frame
2000 * Already deprecated.
2001 * - ctrl_grab + alt_grab
2002 * Not clear yet what happens to them long-term. Should
2003 * replaced by something better or deprecated and dropped.
2004 */
2005 dpy.type = DISPLAY_TYPE_SDL;
2006 while (*opts) {
2007 const char *nextopt;
2008
2009 if (strstart(opts, ",alt_grab=", &nextopt)) {
2010 opts = nextopt;
2011 if (strstart(opts, "on", &nextopt)) {
2012 alt_grab = 1;
2013 } else if (strstart(opts, "off", &nextopt)) {
2014 alt_grab = 0;
2015 } else {
2016 goto invalid_sdl_args;
2017 }
2018 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2019 opts = nextopt;
2020 if (strstart(opts, "on", &nextopt)) {
2021 ctrl_grab = 1;
2022 } else if (strstart(opts, "off", &nextopt)) {
2023 ctrl_grab = 0;
2024 } else {
2025 goto invalid_sdl_args;
2026 }
2027 } else if (strstart(opts, ",window_close=", &nextopt)) {
2028 opts = nextopt;
2029 dpy.has_window_close = true;
2030 if (strstart(opts, "on", &nextopt)) {
2031 dpy.window_close = true;
2032 } else if (strstart(opts, "off", &nextopt)) {
2033 dpy.window_close = false;
2034 } else {
2035 goto invalid_sdl_args;
2036 }
2037 } else if (strstart(opts, ",gl=", &nextopt)) {
2038 opts = nextopt;
2039 dpy.has_gl = true;
2040 if (strstart(opts, "on", &nextopt)) {
2041 dpy.gl = DISPLAYGL_MODE_ON;
2042 } else if (strstart(opts, "core", &nextopt)) {
2043 dpy.gl = DISPLAYGL_MODE_CORE;
2044 } else if (strstart(opts, "es", &nextopt)) {
2045 dpy.gl = DISPLAYGL_MODE_ES;
2046 } else if (strstart(opts, "off", &nextopt)) {
2047 dpy.gl = DISPLAYGL_MODE_OFF;
2048 } else {
2049 goto invalid_sdl_args;
2050 }
2051 } else {
2052 invalid_sdl_args:
2053 error_report("invalid SDL option string");
2054 exit(1);
2055 }
2056 opts = nextopt;
2057 }
2058 } else if (strstart(p, "vnc", &opts)) {
2059 /*
2060 * vnc isn't a (local) DisplayType but a protocol for remote
2061 * display access.
2062 */
2063 if (*opts == '=') {
2064 vnc_parse(opts + 1, &error_fatal);
2065 } else {
2066 error_report("VNC requires a display argument vnc=<display>");
2067 exit(1);
2068 }
2069 } else {
2070 parse_display_qapi(p);
2071 }
2072 }
2073
2074 char *qemu_find_file(int type, const char *name)
2075 {
2076 int i;
2077 const char *subdir;
2078 char *buf;
2079
2080 /* Try the name as a straight path first */
2081 if (access(name, R_OK) == 0) {
2082 trace_load_file(name, name);
2083 return g_strdup(name);
2084 }
2085
2086 switch (type) {
2087 case QEMU_FILE_TYPE_BIOS:
2088 subdir = "";
2089 break;
2090 case QEMU_FILE_TYPE_KEYMAP:
2091 subdir = "keymaps/";
2092 break;
2093 default:
2094 abort();
2095 }
2096
2097 for (i = 0; i < data_dir_idx; i++) {
2098 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2099 if (access(buf, R_OK) == 0) {
2100 trace_load_file(name, buf);
2101 return buf;
2102 }
2103 g_free(buf);
2104 }
2105 return NULL;
2106 }
2107
2108 static void qemu_add_data_dir(const char *path)
2109 {
2110 int i;
2111
2112 if (path == NULL) {
2113 return;
2114 }
2115 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2116 return;
2117 }
2118 for (i = 0; i < data_dir_idx; i++) {
2119 if (strcmp(data_dir[i], path) == 0) {
2120 return; /* duplicate */
2121 }
2122 }
2123 data_dir[data_dir_idx++] = g_strdup(path);
2124 }
2125
2126 static inline bool nonempty_str(const char *str)
2127 {
2128 return str && *str;
2129 }
2130
2131 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2132 {
2133 gchar *buf;
2134 size_t size;
2135 const char *name, *file, *str;
2136 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2137
2138 if (fw_cfg == NULL) {
2139 error_setg(errp, "fw_cfg device not available");
2140 return -1;
2141 }
2142 name = qemu_opt_get(opts, "name");
2143 file = qemu_opt_get(opts, "file");
2144 str = qemu_opt_get(opts, "string");
2145
2146 /* we need name and either a file or the content string */
2147 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2148 error_setg(errp, "invalid argument(s)");
2149 return -1;
2150 }
2151 if (nonempty_str(file) && nonempty_str(str)) {
2152 error_setg(errp, "file and string are mutually exclusive");
2153 return -1;
2154 }
2155 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2156 error_setg(errp, "name too long (max. %d char)",
2157 FW_CFG_MAX_FILE_PATH - 1);
2158 return -1;
2159 }
2160 if (strncmp(name, "opt/", 4) != 0) {
2161 warn_report("externally provided fw_cfg item names "
2162 "should be prefixed with \"opt/\"");
2163 }
2164 if (nonempty_str(str)) {
2165 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2166 buf = g_memdup(str, size);
2167 } else {
2168 GError *err = NULL;
2169 if (!g_file_get_contents(file, &buf, &size, &err)) {
2170 error_setg(errp, "can't load %s: %s", file, err->message);
2171 g_error_free(err);
2172 return -1;
2173 }
2174 }
2175 /* For legacy, keep user files in a specific global order. */
2176 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2177 fw_cfg_add_file(fw_cfg, name, buf, size);
2178 fw_cfg_reset_order_override(fw_cfg);
2179 return 0;
2180 }
2181
2182 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2183 {
2184 return qdev_device_help(opts);
2185 }
2186
2187 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2188 {
2189 DeviceState *dev;
2190
2191 dev = qdev_device_add(opts, errp);
2192 if (!dev) {
2193 return -1;
2194 }
2195 object_unref(OBJECT(dev));
2196 return 0;
2197 }
2198
2199 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2200 {
2201 Error *local_err = NULL;
2202
2203 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2204 if (local_err) {
2205 error_propagate(errp, local_err);
2206 return -1;
2207 }
2208 exit(0);
2209 }
2210 return 0;
2211 }
2212
2213 #ifdef CONFIG_VIRTFS
2214 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2215 {
2216 return qemu_fsdev_add(opts, errp);
2217 }
2218 #endif
2219
2220 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2221 {
2222 Chardev *chr;
2223 bool qmp;
2224 bool pretty = false;
2225 const char *chardev;
2226 const char *mode;
2227
2228 mode = qemu_opt_get(opts, "mode");
2229 if (mode == NULL) {
2230 mode = "readline";
2231 }
2232 if (strcmp(mode, "readline") == 0) {
2233 qmp = false;
2234 } else if (strcmp(mode, "control") == 0) {
2235 qmp = true;
2236 } else {
2237 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2238 return -1;
2239 }
2240
2241 if (!qmp && qemu_opt_get(opts, "pretty")) {
2242 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2243 "and will be removed in future versions");
2244 }
2245 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2246 pretty = true;
2247 }
2248
2249 chardev = qemu_opt_get(opts, "chardev");
2250 if (!chardev) {
2251 error_report("chardev is required");
2252 exit(1);
2253 }
2254 chr = qemu_chr_find(chardev);
2255 if (chr == NULL) {
2256 error_setg(errp, "chardev \"%s\" not found", chardev);
2257 return -1;
2258 }
2259
2260 if (qmp) {
2261 monitor_init_qmp(chr, pretty);
2262 } else {
2263 monitor_init_hmp(chr, true);
2264 }
2265 return 0;
2266 }
2267
2268 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2269 {
2270 static int monitor_device_index = 0;
2271 QemuOpts *opts;
2272 const char *p;
2273 char label[32];
2274
2275 if (strstart(optarg, "chardev:", &p)) {
2276 snprintf(label, sizeof(label), "%s", p);
2277 } else {
2278 snprintf(label, sizeof(label), "compat_monitor%d",
2279 monitor_device_index);
2280 opts = qemu_chr_parse_compat(label, optarg, true);
2281 if (!opts) {
2282 error_report("parse error: %s", optarg);
2283 exit(1);
2284 }
2285 }
2286
2287 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2288 qemu_opt_set(opts, "mode", mode, &error_abort);
2289 qemu_opt_set(opts, "chardev", label, &error_abort);
2290 if (!strcmp(mode, "control")) {
2291 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2292 } else {
2293 assert(pretty == false);
2294 }
2295 monitor_device_index++;
2296 }
2297
2298 struct device_config {
2299 enum {
2300 DEV_USB, /* -usbdevice */
2301 DEV_BT, /* -bt */
2302 DEV_SERIAL, /* -serial */
2303 DEV_PARALLEL, /* -parallel */
2304 DEV_DEBUGCON, /* -debugcon */
2305 DEV_GDB, /* -gdb, -s */
2306 DEV_SCLP, /* s390 sclp */
2307 } type;
2308 const char *cmdline;
2309 Location loc;
2310 QTAILQ_ENTRY(device_config) next;
2311 };
2312
2313 static QTAILQ_HEAD(, device_config) device_configs =
2314 QTAILQ_HEAD_INITIALIZER(device_configs);
2315
2316 static void add_device_config(int type, const char *cmdline)
2317 {
2318 struct device_config *conf;
2319
2320 conf = g_malloc0(sizeof(*conf));
2321 conf->type = type;
2322 conf->cmdline = cmdline;
2323 loc_save(&conf->loc);
2324 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2325 }
2326
2327 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2328 {
2329 struct device_config *conf;
2330 int rc;
2331
2332 QTAILQ_FOREACH(conf, &device_configs, next) {
2333 if (conf->type != type)
2334 continue;
2335 loc_push_restore(&conf->loc);
2336 rc = func(conf->cmdline);
2337 loc_pop(&conf->loc);
2338 if (rc) {
2339 return rc;
2340 }
2341 }
2342 return 0;
2343 }
2344
2345 static int serial_parse(const char *devname)
2346 {
2347 int index = num_serial_hds;
2348 char label[32];
2349
2350 if (strcmp(devname, "none") == 0)
2351 return 0;
2352 snprintf(label, sizeof(label), "serial%d", index);
2353 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2354
2355 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2356 if (!serial_hds[index]) {
2357 error_report("could not connect serial device"
2358 " to character backend '%s'", devname);
2359 return -1;
2360 }
2361 num_serial_hds++;
2362 return 0;
2363 }
2364
2365 Chardev *serial_hd(int i)
2366 {
2367 assert(i >= 0);
2368 if (i < num_serial_hds) {
2369 return serial_hds[i];
2370 }
2371 return NULL;
2372 }
2373
2374 int serial_max_hds(void)
2375 {
2376 return num_serial_hds;
2377 }
2378
2379 static int parallel_parse(const char *devname)
2380 {
2381 static int index = 0;
2382 char label[32];
2383
2384 if (strcmp(devname, "none") == 0)
2385 return 0;
2386 if (index == MAX_PARALLEL_PORTS) {
2387 error_report("too many parallel ports");
2388 exit(1);
2389 }
2390 snprintf(label, sizeof(label), "parallel%d", index);
2391 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2392 if (!parallel_hds[index]) {
2393 error_report("could not connect parallel device"
2394 " to character backend '%s'", devname);
2395 return -1;
2396 }
2397 index++;
2398 return 0;
2399 }
2400
2401 static int debugcon_parse(const char *devname)
2402 {
2403 QemuOpts *opts;
2404
2405 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2406 error_report("invalid character backend '%s'", devname);
2407 exit(1);
2408 }
2409 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2410 if (!opts) {
2411 error_report("already have a debugcon device");
2412 exit(1);
2413 }
2414 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2415 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2416 return 0;
2417 }
2418
2419 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2420 {
2421 const MachineClass *mc1 = a, *mc2 = b;
2422 int res;
2423
2424 if (mc1->family == NULL) {
2425 if (mc2->family == NULL) {
2426 /* Compare standalone machine types against each other; they sort
2427 * in increasing order.
2428 */
2429 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2430 object_class_get_name(OBJECT_CLASS(mc2)));
2431 }
2432
2433 /* Standalone machine types sort after families. */
2434 return 1;
2435 }
2436
2437 if (mc2->family == NULL) {
2438 /* Families sort before standalone machine types. */
2439 return -1;
2440 }
2441
2442 /* Families sort between each other alphabetically increasingly. */
2443 res = strcmp(mc1->family, mc2->family);
2444 if (res != 0) {
2445 return res;
2446 }
2447
2448 /* Within the same family, machine types sort in decreasing order. */
2449 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2450 object_class_get_name(OBJECT_CLASS(mc1)));
2451 }
2452
2453 static MachineClass *machine_parse(const char *name, GSList *machines)
2454 {
2455 MachineClass *mc;
2456 GSList *el;
2457
2458 if (is_help_option(name)) {
2459 printf("Supported machines are:\n");
2460 machines = g_slist_sort(machines, machine_class_cmp);
2461 for (el = machines; el; el = el->next) {
2462 MachineClass *mc = el->data;
2463 if (mc->alias) {
2464 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2465 }
2466 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2467 mc->is_default ? " (default)" : "",
2468 mc->deprecation_reason ? " (deprecated)" : "");
2469 }
2470 exit(0);
2471 }
2472
2473 mc = find_machine(name, machines);
2474 if (!mc) {
2475 error_report("unsupported machine type");
2476 error_printf("Use -machine help to list supported machines\n");
2477 exit(1);
2478 }
2479 return mc;
2480 }
2481
2482 void qemu_add_exit_notifier(Notifier *notify)
2483 {
2484 notifier_list_add(&exit_notifiers, notify);
2485 }
2486
2487 void qemu_remove_exit_notifier(Notifier *notify)
2488 {
2489 notifier_remove(notify);
2490 }
2491
2492 static void qemu_run_exit_notifiers(void)
2493 {
2494 notifier_list_notify(&exit_notifiers, NULL);
2495 }
2496
2497 static const char *pid_file;
2498 static Notifier qemu_unlink_pidfile_notifier;
2499
2500 static void qemu_unlink_pidfile(Notifier *n, void *data)
2501 {
2502 if (pid_file) {
2503 unlink(pid_file);
2504 }
2505 }
2506
2507 bool machine_init_done;
2508
2509 void qemu_add_machine_init_done_notifier(Notifier *notify)
2510 {
2511 notifier_list_add(&machine_init_done_notifiers, notify);
2512 if (machine_init_done) {
2513 notify->notify(notify, NULL);
2514 }
2515 }
2516
2517 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2518 {
2519 notifier_remove(notify);
2520 }
2521
2522 static void qemu_run_machine_init_done_notifiers(void)
2523 {
2524 machine_init_done = true;
2525 notifier_list_notify(&machine_init_done_notifiers, NULL);
2526 }
2527
2528 static const QEMUOption *lookup_opt(int argc, char **argv,
2529 const char **poptarg, int *poptind)
2530 {
2531 const QEMUOption *popt;
2532 int optind = *poptind;
2533 char *r = argv[optind];
2534 const char *optarg;
2535
2536 loc_set_cmdline(argv, optind, 1);
2537 optind++;
2538 /* Treat --foo the same as -foo. */
2539 if (r[1] == '-')
2540 r++;
2541 popt = qemu_options;
2542 for(;;) {
2543 if (!popt->name) {
2544 error_report("invalid option");
2545 exit(1);
2546 }
2547 if (!strcmp(popt->name, r + 1))
2548 break;
2549 popt++;
2550 }
2551 if (popt->flags & HAS_ARG) {
2552 if (optind >= argc) {
2553 error_report("requires an argument");
2554 exit(1);
2555 }
2556 optarg = argv[optind++];
2557 loc_set_cmdline(argv, optind - 2, 2);
2558 } else {
2559 optarg = NULL;
2560 }
2561
2562 *poptarg = optarg;
2563 *poptind = optind;
2564
2565 return popt;
2566 }
2567
2568 static MachineClass *select_machine(void)
2569 {
2570 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2571 MachineClass *machine_class = find_default_machine(machines);
2572 const char *optarg;
2573 QemuOpts *opts;
2574 Location loc;
2575
2576 loc_push_none(&loc);
2577
2578 opts = qemu_get_machine_opts();
2579 qemu_opts_loc_restore(opts);
2580
2581 optarg = qemu_opt_get(opts, "type");
2582 if (optarg) {
2583 machine_class = machine_parse(optarg, machines);
2584 }
2585
2586 if (!machine_class) {
2587 error_report("No machine specified, and there is no default");
2588 error_printf("Use -machine help to list supported machines\n");
2589 exit(1);
2590 }
2591
2592 loc_pop(&loc);
2593 g_slist_free(machines);
2594 return machine_class;
2595 }
2596
2597 static int machine_set_property(void *opaque,
2598 const char *name, const char *value,
2599 Error **errp)
2600 {
2601 Object *obj = OBJECT(opaque);
2602 Error *local_err = NULL;
2603 char *p, *qom_name;
2604
2605 if (strcmp(name, "type") == 0) {
2606 return 0;
2607 }
2608
2609 qom_name = g_strdup(name);
2610 for (p = qom_name; *p; p++) {
2611 if (*p == '_') {
2612 *p = '-';
2613 }
2614 }
2615
2616 object_property_parse(obj, value, qom_name, &local_err);
2617 g_free(qom_name);
2618
2619 if (local_err) {
2620 error_propagate(errp, local_err);
2621 return -1;
2622 }
2623
2624 return 0;
2625 }
2626
2627
2628 /*
2629 * Initial object creation happens before all other
2630 * QEMU data types are created. The majority of objects
2631 * can be created at this point. The rng-egd object
2632 * cannot be created here, as it depends on the chardev
2633 * already existing.
2634 */
2635 static bool object_create_initial(const char *type, QemuOpts *opts)
2636 {
2637 ObjectClass *klass;
2638
2639 if (is_help_option(type)) {
2640 GSList *l, *list;
2641
2642 printf("List of user creatable objects:\n");
2643 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2644 for (l = list; l != NULL; l = l->next) {
2645 ObjectClass *oc = OBJECT_CLASS(l->data);
2646 printf(" %s\n", object_class_get_name(oc));
2647 }
2648 g_slist_free(list);
2649 exit(0);
2650 }
2651
2652 klass = object_class_by_name(type);
2653 if (klass && qemu_opt_has_help_opt(opts)) {
2654 ObjectPropertyIterator iter;
2655 ObjectProperty *prop;
2656 GPtrArray *array = g_ptr_array_new();
2657 int i;
2658
2659 object_class_property_iter_init(&iter, klass);
2660 while ((prop = object_property_iter_next(&iter))) {
2661 GString *str;
2662
2663 if (!prop->set) {
2664 continue;
2665 }
2666
2667 str = g_string_new(NULL);
2668 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2669 if (prop->description) {
2670 if (str->len < 24) {
2671 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2672 }
2673 g_string_append_printf(str, " - %s", prop->description);
2674 }
2675 g_ptr_array_add(array, g_string_free(str, false));
2676 }
2677 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2678 if (array->len > 0) {
2679 printf("%s options:\n", type);
2680 } else {
2681 printf("There are no options for %s.\n", type);
2682 }
2683 for (i = 0; i < array->len; i++) {
2684 printf("%s\n", (char *)array->pdata[i]);
2685 }
2686 g_ptr_array_set_free_func(array, g_free);
2687 g_ptr_array_free(array, true);
2688 exit(0);
2689 }
2690
2691 /*
2692 * Objects should not be made "delayed" without a reason. If you
2693 * add one, state the reason in a comment!
2694 */
2695
2696 /* Reason: rng-egd property "chardev" */
2697 if (g_str_equal(type, "rng-egd")) {
2698 return false;
2699 }
2700
2701 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2702 /* Reason: cryptodev-vhost-user property "chardev" */
2703 if (g_str_equal(type, "cryptodev-vhost-user")) {
2704 return false;
2705 }
2706 #endif
2707
2708 /*
2709 * Reason: filter-* property "netdev" etc.
2710 */
2711 if (g_str_equal(type, "filter-buffer") ||
2712 g_str_equal(type, "filter-dump") ||
2713 g_str_equal(type, "filter-mirror") ||
2714 g_str_equal(type, "filter-redirector") ||
2715 g_str_equal(type, "colo-compare") ||
2716 g_str_equal(type, "filter-rewriter") ||
2717 g_str_equal(type, "filter-replay")) {
2718 return false;
2719 }
2720
2721 /* Memory allocation by backends needs to be done
2722 * after configure_accelerator() (due to the tcg_enabled()
2723 * checks at memory_region_init_*()).
2724 *
2725 * Also, allocation of large amounts of memory may delay
2726 * chardev initialization for too long, and trigger timeouts
2727 * on software that waits for a monitor socket to be created
2728 * (e.g. libvirt).
2729 */
2730 if (g_str_has_prefix(type, "memory-backend-")) {
2731 return false;
2732 }
2733
2734 return true;
2735 }
2736
2737
2738 /*
2739 * The remainder of object creation happens after the
2740 * creation of chardev, fsdev, net clients and device data types.
2741 */
2742 static bool object_create_delayed(const char *type, QemuOpts *opts)
2743 {
2744 return !object_create_initial(type, opts);
2745 }
2746
2747
2748 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2749 MachineClass *mc)
2750 {
2751 uint64_t sz;
2752 const char *mem_str;
2753 const ram_addr_t default_ram_size = mc->default_ram_size;
2754 QemuOpts *opts = qemu_find_opts_singleton("memory");
2755 Location loc;
2756
2757 loc_push_none(&loc);
2758 qemu_opts_loc_restore(opts);
2759
2760 sz = 0;
2761 mem_str = qemu_opt_get(opts, "size");
2762 if (mem_str) {
2763 if (!*mem_str) {
2764 error_report("missing 'size' option value");
2765 exit(EXIT_FAILURE);
2766 }
2767
2768 sz = qemu_opt_get_size(opts, "size", ram_size);
2769
2770 /* Fix up legacy suffix-less format */
2771 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2772 uint64_t overflow_check = sz;
2773
2774 sz *= MiB;
2775 if (sz / MiB != overflow_check) {
2776 error_report("too large 'size' option value");
2777 exit(EXIT_FAILURE);
2778 }
2779 }
2780 }
2781
2782 /* backward compatibility behaviour for case "-m 0" */
2783 if (sz == 0) {
2784 sz = default_ram_size;
2785 }
2786
2787 sz = QEMU_ALIGN_UP(sz, 8192);
2788 ram_size = sz;
2789 if (ram_size != sz) {
2790 error_report("ram size too large");
2791 exit(EXIT_FAILURE);
2792 }
2793
2794 /* store value for the future use */
2795 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2796 *maxram_size = ram_size;
2797
2798 if (qemu_opt_get(opts, "maxmem")) {
2799 uint64_t slots;
2800
2801 sz = qemu_opt_get_size(opts, "maxmem", 0);
2802 slots = qemu_opt_get_number(opts, "slots", 0);
2803 if (sz < ram_size) {
2804 error_report("invalid value of -m option maxmem: "
2805 "maximum memory size (0x%" PRIx64 ") must be at least "
2806 "the initial memory size (0x" RAM_ADDR_FMT ")",
2807 sz, ram_size);
2808 exit(EXIT_FAILURE);
2809 } else if (slots && sz == ram_size) {
2810 error_report("invalid value of -m option maxmem: "
2811 "memory slots were specified but maximum memory size "
2812 "(0x%" PRIx64 ") is equal to the initial memory size "
2813 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2814 exit(EXIT_FAILURE);
2815 }
2816
2817 *maxram_size = sz;
2818 *ram_slots = slots;
2819 } else if (qemu_opt_get(opts, "slots")) {
2820 error_report("invalid -m option value: missing 'maxmem' option");
2821 exit(EXIT_FAILURE);
2822 }
2823
2824 loc_pop(&loc);
2825 }
2826
2827 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2828 {
2829 GlobalProperty *g;
2830
2831 g = g_malloc0(sizeof(*g));
2832 g->driver = qemu_opt_get(opts, "driver");
2833 g->property = qemu_opt_get(opts, "property");
2834 g->value = qemu_opt_get(opts, "value");
2835 qdev_prop_register_global(g);
2836 return 0;
2837 }
2838
2839 static int qemu_read_default_config_file(void)
2840 {
2841 int ret;
2842
2843 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2844 if (ret < 0 && ret != -ENOENT) {
2845 return ret;
2846 }
2847
2848 return 0;
2849 }
2850
2851 static void user_register_global_props(void)
2852 {
2853 qemu_opts_foreach(qemu_find_opts("global"),
2854 global_init_func, NULL, NULL);
2855 }
2856
2857 int main(int argc, char **argv, char **envp)
2858 {
2859 int i;
2860 int snapshot, linux_boot;
2861 const char *initrd_filename;
2862 const char *kernel_filename, *kernel_cmdline;
2863 const char *boot_order = NULL;
2864 const char *boot_once = NULL;
2865 DisplayState *ds;
2866 QemuOpts *opts, *machine_opts;
2867 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2868 QemuOptsList *olist;
2869 int optind;
2870 const char *optarg;
2871 const char *loadvm = NULL;
2872 MachineClass *machine_class;
2873 const char *cpu_option;
2874 const char *vga_model = NULL;
2875 const char *qtest_chrdev = NULL;
2876 const char *qtest_log = NULL;
2877 const char *incoming = NULL;
2878 bool userconfig = true;
2879 bool nographic = false;
2880 int display_remote = 0;
2881 const char *log_mask = NULL;
2882 const char *log_file = NULL;
2883 char *trace_file = NULL;
2884 ram_addr_t maxram_size;
2885 uint64_t ram_slots = 0;
2886 FILE *vmstate_dump_file = NULL;
2887 Error *main_loop_err = NULL;
2888 Error *err = NULL;
2889 bool list_data_dirs = false;
2890 char *dir, **dirs;
2891 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2892
2893 os_set_line_buffering();
2894
2895 error_init(argv[0]);
2896 module_call_init(MODULE_INIT_TRACE);
2897
2898 qemu_init_cpu_list();
2899 qemu_init_cpu_loop();
2900
2901 qemu_mutex_lock_iothread();
2902
2903 atexit(qemu_run_exit_notifiers);
2904 qemu_init_exec_dir(argv[0]);
2905
2906 module_call_init(MODULE_INIT_QOM);
2907
2908 qemu_add_opts(&qemu_drive_opts);
2909 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2910 qemu_add_drive_opts(&qemu_common_drive_opts);
2911 qemu_add_drive_opts(&qemu_drive_opts);
2912 qemu_add_drive_opts(&bdrv_runtime_opts);
2913 qemu_add_opts(&qemu_chardev_opts);
2914 qemu_add_opts(&qemu_device_opts);
2915 qemu_add_opts(&qemu_netdev_opts);
2916 qemu_add_opts(&qemu_nic_opts);
2917 qemu_add_opts(&qemu_net_opts);
2918 qemu_add_opts(&qemu_rtc_opts);
2919 qemu_add_opts(&qemu_global_opts);
2920 qemu_add_opts(&qemu_mon_opts);
2921 qemu_add_opts(&qemu_trace_opts);
2922 qemu_add_opts(&qemu_option_rom_opts);
2923 qemu_add_opts(&qemu_machine_opts);
2924 qemu_add_opts(&qemu_accel_opts);
2925 qemu_add_opts(&qemu_mem_opts);
2926 qemu_add_opts(&qemu_smp_opts);
2927 qemu_add_opts(&qemu_boot_opts);
2928 qemu_add_opts(&qemu_add_fd_opts);
2929 qemu_add_opts(&qemu_object_opts);
2930 qemu_add_opts(&qemu_tpmdev_opts);
2931 qemu_add_opts(&qemu_realtime_opts);
2932 qemu_add_opts(&qemu_overcommit_opts);
2933 qemu_add_opts(&qemu_msg_opts);
2934 qemu_add_opts(&qemu_name_opts);
2935 qemu_add_opts(&qemu_numa_opts);
2936 qemu_add_opts(&qemu_icount_opts);
2937 qemu_add_opts(&qemu_semihosting_config_opts);
2938 qemu_add_opts(&qemu_fw_cfg_opts);
2939 module_call_init(MODULE_INIT_OPTS);
2940
2941 runstate_init();
2942 precopy_infrastructure_init();
2943 postcopy_infrastructure_init();
2944 monitor_init_globals();
2945
2946 if (qcrypto_init(&err) < 0) {
2947 error_reportf_err(err, "cannot initialize crypto: ");
2948 exit(1);
2949 }
2950
2951 QTAILQ_INIT(&vm_change_state_head);
2952 os_setup_early_signal_handling();
2953
2954 cpu_option = NULL;
2955 snapshot = 0;
2956
2957 nb_nics = 0;
2958
2959 bdrv_init_with_whitelist();
2960
2961 autostart = 1;
2962
2963 /* first pass of option parsing */
2964 optind = 1;
2965 while (optind < argc) {
2966 if (argv[optind][0] != '-') {
2967 /* disk image */
2968 optind++;
2969 } else {
2970 const QEMUOption *popt;
2971
2972 popt = lookup_opt(argc, argv, &optarg, &optind);
2973 switch (popt->index) {
2974 case QEMU_OPTION_nouserconfig:
2975 userconfig = false;
2976 break;
2977 }
2978 }
2979 }
2980
2981 if (userconfig) {
2982 if (qemu_read_default_config_file() < 0) {
2983 exit(1);
2984 }
2985 }
2986
2987 /* second pass of option parsing */
2988 optind = 1;
2989 for(;;) {
2990 if (optind >= argc)
2991 break;
2992 if (argv[optind][0] != '-') {
2993 loc_set_cmdline(argv, optind, 1);
2994 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2995 } else {
2996 const QEMUOption *popt;
2997
2998 popt = lookup_opt(argc, argv, &optarg, &optind);
2999 if (!(popt->arch_mask & arch_type)) {
3000 error_report("Option not supported for this target");
3001 exit(1);
3002 }
3003 switch(popt->index) {
3004 case QEMU_OPTION_cpu:
3005 /* hw initialization will check this */
3006 cpu_option = optarg;
3007 break;
3008 case QEMU_OPTION_hda:
3009 case QEMU_OPTION_hdb:
3010 case QEMU_OPTION_hdc:
3011 case QEMU_OPTION_hdd:
3012 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3013 HD_OPTS);
3014 break;
3015 case QEMU_OPTION_blockdev:
3016 {
3017 Visitor *v;
3018 BlockdevOptionsQueueEntry *bdo;
3019
3020 v = qobject_input_visitor_new_str(optarg, "driver",
3021 &error_fatal);
3022
3023 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3024 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3025 &error_fatal);
3026 visit_free(v);
3027 loc_save(&bdo->loc);
3028 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3029 break;
3030 }
3031 case QEMU_OPTION_drive:
3032 if (drive_def(optarg) == NULL) {
3033 exit(1);
3034 }
3035 break;
3036 case QEMU_OPTION_set:
3037 if (qemu_set_option(optarg) != 0)
3038 exit(1);
3039 break;
3040 case QEMU_OPTION_global:
3041 if (qemu_global_option(optarg) != 0)
3042 exit(1);
3043 break;
3044 case QEMU_OPTION_mtdblock:
3045 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3046 break;
3047 case QEMU_OPTION_sd:
3048 drive_add(IF_SD, -1, optarg, SD_OPTS);
3049 break;
3050 case QEMU_OPTION_pflash:
3051 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3052 break;
3053 case QEMU_OPTION_snapshot:
3054 snapshot = 1;
3055 break;
3056 case QEMU_OPTION_numa:
3057 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3058 optarg, true);
3059 if (!opts) {
3060 exit(1);
3061 }
3062 break;
3063 case QEMU_OPTION_display:
3064 parse_display(optarg);
3065 break;
3066 case QEMU_OPTION_nographic:
3067 olist = qemu_find_opts("machine");
3068 qemu_opts_parse_noisily(olist, "graphics=off", false);
3069 nographic = true;
3070 dpy.type = DISPLAY_TYPE_NONE;
3071 break;
3072 case QEMU_OPTION_curses:
3073 #ifdef CONFIG_CURSES
3074 dpy.type = DISPLAY_TYPE_CURSES;
3075 #else
3076 error_report("curses or iconv support is disabled");
3077 exit(1);
3078 #endif
3079 break;
3080 case QEMU_OPTION_portrait:
3081 graphic_rotate = 90;
3082 break;
3083 case QEMU_OPTION_rotate:
3084 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3085 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3086 graphic_rotate != 180 && graphic_rotate != 270) {
3087 error_report("only 90, 180, 270 deg rotation is available");
3088 exit(1);
3089 }
3090 break;
3091 case QEMU_OPTION_kernel:
3092 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3093 &error_abort);
3094 break;
3095 case QEMU_OPTION_initrd:
3096 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3097 &error_abort);
3098 break;
3099 case QEMU_OPTION_append:
3100 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3101 &error_abort);
3102 break;
3103 case QEMU_OPTION_dtb:
3104 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3105 &error_abort);
3106 break;
3107 case QEMU_OPTION_cdrom:
3108 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3109 break;
3110 case QEMU_OPTION_boot:
3111 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3112 optarg, true);
3113 if (!opts) {
3114 exit(1);
3115 }
3116 break;
3117 case QEMU_OPTION_fda:
3118 case QEMU_OPTION_fdb:
3119 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3120 optarg, FD_OPTS);
3121 break;
3122 case QEMU_OPTION_no_fd_bootchk:
3123 fd_bootchk = 0;
3124 break;
3125 case QEMU_OPTION_netdev:
3126 default_net = 0;
3127 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3128 exit(1);
3129 }
3130 break;
3131 case QEMU_OPTION_nic:
3132 default_net = 0;
3133 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3134 exit(1);
3135 }
3136 break;
3137 case QEMU_OPTION_net:
3138 default_net = 0;
3139 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3140 exit(1);
3141 }
3142 break;
3143 #ifdef CONFIG_LIBISCSI
3144 case QEMU_OPTION_iscsi:
3145 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3146 optarg, false);
3147 if (!opts) {
3148 exit(1);
3149 }
3150 break;
3151 #endif
3152 case QEMU_OPTION_bt:
3153 warn_report("The bluetooth subsystem is deprecated and will "
3154 "be removed soon. If the bluetooth subsystem is "
3155 "still useful for you, please send a mail to "
3156 "qemu-devel@nongnu.org with your usecase.");
3157 add_device_config(DEV_BT, optarg);
3158 break;
3159 case QEMU_OPTION_audio_help:
3160 audio_legacy_help();
3161 exit (0);
3162 break;
3163 case QEMU_OPTION_audiodev:
3164 audio_parse_option(optarg);
3165 break;
3166 case QEMU_OPTION_soundhw:
3167 select_soundhw (optarg);
3168 break;
3169 case QEMU_OPTION_h:
3170 help(0);
3171 break;
3172 case QEMU_OPTION_version:
3173 version();
3174 exit(0);
3175 break;
3176 case QEMU_OPTION_m:
3177 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3178 optarg, true);
3179 if (!opts) {
3180 exit(EXIT_FAILURE);
3181 }
3182 break;
3183 #ifdef CONFIG_TPM
3184 case QEMU_OPTION_tpmdev:
3185 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3186 exit(1);
3187 }
3188 break;
3189 #endif
3190 case QEMU_OPTION_mempath:
3191 mem_path = optarg;
3192 break;
3193 case QEMU_OPTION_mem_prealloc:
3194 mem_prealloc = 1;
3195 break;
3196 case QEMU_OPTION_d:
3197 log_mask = optarg;
3198 break;
3199 case QEMU_OPTION_D:
3200 log_file = optarg;
3201 break;
3202 case QEMU_OPTION_DFILTER:
3203 qemu_set_dfilter_ranges(optarg, &error_fatal);
3204 break;
3205 case QEMU_OPTION_seed:
3206 qemu_guest_random_seed_main(optarg, &error_fatal);
3207 break;
3208 case QEMU_OPTION_s:
3209 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3210 break;
3211 case QEMU_OPTION_gdb:
3212 add_device_config(DEV_GDB, optarg);
3213 break;
3214 case QEMU_OPTION_L:
3215 if (is_help_option(optarg)) {
3216 list_data_dirs = true;
3217 } else {
3218 qemu_add_data_dir(optarg);
3219 }
3220 break;
3221 case QEMU_OPTION_bios:
3222 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3223 &error_abort);
3224 break;
3225 case QEMU_OPTION_singlestep:
3226 singlestep = 1;
3227 break;
3228 case QEMU_OPTION_S:
3229 autostart = 0;
3230 break;
3231 case QEMU_OPTION_k:
3232 keyboard_layout = optarg;
3233 break;
3234 case QEMU_OPTION_vga:
3235 vga_model = optarg;
3236 default_vga = 0;
3237 break;
3238 case QEMU_OPTION_g:
3239 {
3240 const char *p;
3241 int w, h, depth;
3242 p = optarg;
3243 w = strtol(p, (char **)&p, 10);
3244 if (w <= 0) {
3245 graphic_error:
3246 error_report("invalid resolution or depth");
3247 exit(1);
3248 }
3249 if (*p != 'x')
3250 goto graphic_error;
3251 p++;
3252 h = strtol(p, (char **)&p, 10);
3253 if (h <= 0)
3254 goto graphic_error;
3255 if (*p == 'x') {
3256 p++;
3257 depth = strtol(p, (char **)&p, 10);
3258 if (depth != 8 && depth != 15 && depth != 16 &&
3259 depth != 24 && depth != 32)
3260 goto graphic_error;
3261 } else if (*p == '\0') {
3262 depth = graphic_depth;
3263 } else {
3264 goto graphic_error;
3265 }
3266
3267 graphic_width = w;
3268 graphic_height = h;
3269 graphic_depth = depth;
3270 }
3271 break;
3272 case QEMU_OPTION_echr:
3273 {
3274 char *r;
3275 term_escape_char = strtol(optarg, &r, 0);
3276 if (r == optarg)
3277 printf("Bad argument to echr\n");
3278 break;
3279 }
3280 case QEMU_OPTION_monitor:
3281 default_monitor = 0;
3282 if (strncmp(optarg, "none", 4)) {
3283 monitor_parse(optarg, "readline", false);
3284 }
3285 break;
3286 case QEMU_OPTION_qmp:
3287 monitor_parse(optarg, "control", false);
3288 default_monitor = 0;
3289 break;
3290 case QEMU_OPTION_qmp_pretty:
3291 monitor_parse(optarg, "control", true);
3292 default_monitor = 0;
3293 break;
3294 case QEMU_OPTION_mon:
3295 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3296 true);
3297 if (!opts) {
3298 exit(1);
3299 }
3300 default_monitor = 0;
3301 break;
3302 case QEMU_OPTION_chardev:
3303 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3304 optarg, true);
3305 if (!opts) {
3306 exit(1);
3307 }
3308 break;
3309 case QEMU_OPTION_fsdev:
3310 olist = qemu_find_opts("fsdev");
3311 if (!olist) {
3312 error_report("fsdev support is disabled");
3313 exit(1);
3314 }
3315 opts = qemu_opts_parse_noisily(olist, optarg, true);
3316 if (!opts) {
3317 exit(1);
3318 }
3319 break;
3320 case QEMU_OPTION_virtfs: {
3321 QemuOpts *fsdev;
3322 QemuOpts *device;
3323 const char *writeout, *sock_fd, *socket, *path, *security_model;
3324
3325 olist = qemu_find_opts("virtfs");
3326 if (!olist) {
3327 error_report("virtfs support is disabled");
3328 exit(1);
3329 }
3330 opts = qemu_opts_parse_noisily(olist, optarg, true);
3331 if (!opts) {
3332 exit(1);
3333 }
3334
3335 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3336 qemu_opt_get(opts, "mount_tag") == NULL) {
3337 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3338 exit(1);
3339 }
3340 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3341 qemu_opts_id(opts) ?:
3342 qemu_opt_get(opts, "mount_tag"),
3343 1, NULL);
3344 if (!fsdev) {
3345 error_report("duplicate or invalid fsdev id: %s",
3346 qemu_opt_get(opts, "mount_tag"));
3347 exit(1);
3348 }
3349
3350 writeout = qemu_opt_get(opts, "writeout");
3351 if (writeout) {
3352 #ifdef CONFIG_SYNC_FILE_RANGE
3353 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3354 #else
3355 error_report("writeout=immediate not supported "
3356 "on this platform");
3357 exit(1);
3358 #endif
3359 }
3360 qemu_opt_set(fsdev, "fsdriver",
3361 qemu_opt_get(opts, "fsdriver"), &error_abort);
3362 path = qemu_opt_get(opts, "path");
3363 if (path) {
3364 qemu_opt_set(fsdev, "path", path, &error_abort);
3365 }
3366 security_model = qemu_opt_get(opts, "security_model");
3367 if (security_model) {
3368 qemu_opt_set(fsdev, "security_model", security_model,
3369 &error_abort);
3370 }
3371 socket = qemu_opt_get(opts, "socket");
3372 if (socket) {
3373 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3374 }
3375 sock_fd = qemu_opt_get(opts, "sock_fd");
3376 if (sock_fd) {
3377 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3378 }
3379
3380 qemu_opt_set_bool(fsdev, "readonly",
3381 qemu_opt_get_bool(opts, "readonly", 0),
3382 &error_abort);
3383 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3384 &error_abort);
3385 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3386 qemu_opt_set(device, "fsdev",
3387 qemu_opts_id(fsdev), &error_abort);
3388 qemu_opt_set(device, "mount_tag",
3389 qemu_opt_get(opts, "mount_tag"), &error_abort);
3390 break;
3391 }
3392 case QEMU_OPTION_virtfs_synth: {
3393 QemuOpts *fsdev;
3394 QemuOpts *device;
3395
3396 warn_report("'-virtfs_synth' is deprecated, please use "
3397 "'-fsdev synth' and '-device virtio-9p-...' "
3398 "instead");
3399
3400 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3401 1, NULL);
3402 if (!fsdev) {
3403 error_report("duplicate option: %s", "virtfs_synth");
3404 exit(1);
3405 }
3406 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3407
3408 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3409 &error_abort);
3410 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3411 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3412 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3413 break;
3414 }
3415 case QEMU_OPTION_serial:
3416 add_device_config(DEV_SERIAL, optarg);
3417 default_serial = 0;
3418 if (strncmp(optarg, "mon:", 4) == 0) {
3419 default_monitor = 0;
3420 }
3421 break;
3422 case QEMU_OPTION_watchdog:
3423 if (watchdog) {
3424 error_report("only one watchdog option may be given");
3425 return 1;
3426 }
3427 watchdog = optarg;
3428 break;
3429 case QEMU_OPTION_watchdog_action:
3430 if (select_watchdog_action(optarg) == -1) {
3431 error_report("unknown -watchdog-action parameter");
3432 exit(1);
3433 }
3434 break;
3435 case QEMU_OPTION_parallel:
3436 add_device_config(DEV_PARALLEL, optarg);
3437 default_parallel = 0;
3438 if (strncmp(optarg, "mon:", 4) == 0) {
3439 default_monitor = 0;
3440 }
3441 break;
3442 case QEMU_OPTION_debugcon:
3443 add_device_config(DEV_DEBUGCON, optarg);
3444 break;
3445 case QEMU_OPTION_loadvm:
3446 loadvm = optarg;
3447 break;
3448 case QEMU_OPTION_full_screen:
3449 dpy.has_full_screen = true;
3450 dpy.full_screen = true;
3451 break;
3452 case QEMU_OPTION_alt_grab:
3453 alt_grab = 1;
3454 break;
3455 case QEMU_OPTION_ctrl_grab:
3456 ctrl_grab = 1;
3457 break;
3458 case QEMU_OPTION_no_quit:
3459 dpy.has_window_close = true;
3460 dpy.window_close = false;
3461 break;
3462 case QEMU_OPTION_sdl:
3463 #ifdef CONFIG_SDL
3464 dpy.type = DISPLAY_TYPE_SDL;
3465 break;
3466 #else
3467 error_report("SDL support is disabled");
3468 exit(1);
3469 #endif
3470 case QEMU_OPTION_pidfile:
3471 pid_file = optarg;
3472 break;
3473 case QEMU_OPTION_win2k_hack:
3474 win2k_install_hack = 1;
3475 break;
3476 case QEMU_OPTION_acpitable:
3477 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3478 optarg, true);
3479 if (!opts) {
3480 exit(1);
3481 }
3482 acpi_table_add(opts, &error_fatal);
3483 break;
3484 case QEMU_OPTION_smbios:
3485 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3486 optarg, false);
3487 if (!opts) {
3488 exit(1);
3489 }
3490 smbios_entry_add(opts, &error_fatal);
3491 break;
3492 case QEMU_OPTION_fwcfg:
3493 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3494 optarg, true);
3495 if (opts == NULL) {
3496 exit(1);
3497 }
3498 break;
3499 case QEMU_OPTION_preconfig:
3500 preconfig_exit_requested = false;
3501 break;
3502 case QEMU_OPTION_enable_kvm:
3503 olist = qemu_find_opts("machine");
3504 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3505 break;
3506 case QEMU_OPTION_M:
3507 case QEMU_OPTION_machine:
3508 olist = qemu_find_opts("machine");
3509 opts = qemu_opts_parse_noisily(olist, optarg, true);
3510 if (!opts) {
3511 exit(1);
3512 }
3513 break;
3514 case QEMU_OPTION_no_kvm:
3515 olist = qemu_find_opts("machine");
3516 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3517 break;
3518 case QEMU_OPTION_accel:
3519 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3520 optarg, true);
3521 optarg = qemu_opt_get(accel_opts, "accel");
3522 if (!optarg || is_help_option(optarg)) {
3523 printf("Accelerators supported in QEMU binary:\n");
3524 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3525 false);
3526 for (el = accel_list; el; el = el->next) {
3527 gchar *typename = g_strdup(object_class_get_name(
3528 OBJECT_CLASS(el->data)));
3529 /* omit qtest which is used for tests only */
3530 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3531 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3532 gchar **optname = g_strsplit(typename,
3533 ACCEL_CLASS_SUFFIX, 0);
3534 printf("%s\n", optname[0]);
3535 g_free(optname);
3536 }
3537 g_free(typename);
3538 }
3539 g_slist_free(accel_list);
3540 exit(0);
3541 }
3542 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3543 false, &error_abort);
3544 qemu_opt_set(opts, "accel", optarg, &error_abort);
3545 break;
3546 case QEMU_OPTION_usb:
3547 olist = qemu_find_opts("machine");
3548 qemu_opts_parse_noisily(olist, "usb=on", false);
3549 break;
3550 case QEMU_OPTION_usbdevice:
3551 error_report("'-usbdevice' is deprecated, please use "
3552 "'-device usb-...' instead");
3553 olist = qemu_find_opts("machine");
3554 qemu_opts_parse_noisily(olist, "usb=on", false);
3555 add_device_config(DEV_USB, optarg);
3556 break;
3557 case QEMU_OPTION_device:
3558 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3559 optarg, true)) {
3560 exit(1);
3561 }
3562 break;
3563 case QEMU_OPTION_smp:
3564 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3565 optarg, true)) {
3566 exit(1);
3567 }
3568 break;
3569 case QEMU_OPTION_vnc:
3570 vnc_parse(optarg, &error_fatal);
3571 break;
3572 case QEMU_OPTION_no_acpi:
3573 acpi_enabled = 0;
3574 break;
3575 case QEMU_OPTION_no_hpet:
3576 no_hpet = 1;
3577 break;
3578 case QEMU_OPTION_no_reboot:
3579 no_reboot = 1;
3580 break;
3581 case QEMU_OPTION_no_shutdown:
3582 no_shutdown = 1;
3583 break;
3584 case QEMU_OPTION_show_cursor:
3585 cursor_hide = 0;
3586 break;
3587 case QEMU_OPTION_uuid:
3588 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3589 error_report("failed to parse UUID string: wrong format");
3590 exit(1);
3591 }
3592 qemu_uuid_set = true;
3593 break;
3594 case QEMU_OPTION_option_rom:
3595 if (nb_option_roms >= MAX_OPTION_ROMS) {
3596 error_report("too many option ROMs");
3597 exit(1);
3598 }
3599 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3600 optarg, true);
3601 if (!opts) {
3602 exit(1);
3603 }
3604 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3605 option_rom[nb_option_roms].bootindex =
3606 qemu_opt_get_number(opts, "bootindex", -1);
3607 if (!option_rom[nb_option_roms].name) {
3608 error_report("Option ROM file is not specified");
3609 exit(1);
3610 }
3611 nb_option_roms++;
3612 break;
3613 case QEMU_OPTION_semihosting:
3614 qemu_semihosting_enable();
3615 break;
3616 case QEMU_OPTION_semihosting_config:
3617 if (qemu_semihosting_config_options(optarg) != 0) {
3618 exit(1);
3619 }
3620 break;
3621 case QEMU_OPTION_name:
3622 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3623 optarg, true);
3624 if (!opts) {
3625 exit(1);
3626 }
3627 break;
3628 case QEMU_OPTION_prom_env:
3629 if (nb_prom_envs >= MAX_PROM_ENVS) {
3630 error_report("too many prom variables");
3631 exit(1);
3632 }
3633 prom_envs[nb_prom_envs] = optarg;
3634 nb_prom_envs++;
3635 break;
3636 case QEMU_OPTION_old_param:
3637 old_param = 1;
3638 break;
3639 case QEMU_OPTION_rtc:
3640 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3641 false);
3642 if (!opts) {
3643 exit(1);
3644 }
3645 break;
3646 case QEMU_OPTION_tb_size:
3647 #ifndef CONFIG_TCG
3648 error_report("TCG is disabled");
3649 exit(1);
3650 #endif
3651 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3652 error_report("Invalid argument to -tb-size");
3653 exit(1);
3654 }
3655 break;
3656 case QEMU_OPTION_icount:
3657 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3658 optarg, true);
3659 if (!icount_opts) {
3660 exit(1);
3661 }
3662 break;
3663 case QEMU_OPTION_incoming:
3664 if (!incoming) {
3665 runstate_set(RUN_STATE_INMIGRATE);
3666 }
3667 incoming = optarg;
3668 break;
3669 case QEMU_OPTION_only_migratable:
3670 only_migratable = 1;
3671 break;
3672 case QEMU_OPTION_nodefaults:
3673 has_defaults = 0;
3674 break;
3675 case QEMU_OPTION_xen_domid:
3676 if (!(xen_available())) {
3677 error_report("Option not supported for this target");
3678 exit(1);
3679 }
3680 xen_domid = atoi(optarg);
3681 break;
3682 case QEMU_OPTION_xen_attach:
3683 if (!(xen_available())) {
3684 error_report("Option not supported for this target");
3685 exit(1);
3686 }
3687 xen_mode = XEN_ATTACH;
3688 break;
3689 case QEMU_OPTION_xen_domid_restrict:
3690 if (!(xen_available())) {
3691 error_report("Option not supported for this target");
3692 exit(1);
3693 }
3694 xen_domid_restrict = true;
3695 break;
3696 case QEMU_OPTION_trace:
3697 g_free(trace_file);
3698 trace_file = trace_opt_parse(optarg);
3699 break;
3700 case QEMU_OPTION_readconfig:
3701 {
3702 int ret = qemu_read_config_file(optarg);
3703 if (ret < 0) {
3704 error_report("read config %s: %s", optarg,
3705 strerror(-ret));
3706 exit(1);
3707 }
3708 break;
3709 }
3710 case QEMU_OPTION_spice:
3711 olist = qemu_find_opts("spice");
3712 if (!olist) {
3713 error_report("spice support is disabled");
3714 exit(1);
3715 }
3716 opts = qemu_opts_parse_noisily(olist, optarg, false);
3717 if (!opts) {
3718 exit(1);
3719 }
3720 display_remote++;
3721 break;
3722 case QEMU_OPTION_writeconfig:
3723 {
3724 FILE *fp;
3725 if (strcmp(optarg, "-") == 0) {
3726 fp = stdout;
3727 } else {
3728 fp = fopen(optarg, "w");
3729 if (fp == NULL) {
3730 error_report("open %s: %s", optarg,
3731 strerror(errno));
3732 exit(1);
3733 }
3734 }
3735 qemu_config_write(fp);
3736 if (fp != stdout) {
3737 fclose(fp);
3738 }
3739 break;
3740 }
3741 case QEMU_OPTION_qtest:
3742 qtest_chrdev = optarg;
3743 break;
3744 case QEMU_OPTION_qtest_log:
3745 qtest_log = optarg;
3746 break;
3747 case QEMU_OPTION_sandbox:
3748 olist = qemu_find_opts("sandbox");
3749 if (!olist) {
3750 #ifndef CONFIG_SECCOMP
3751 error_report("-sandbox support is not enabled "
3752 "in this QEMU binary");
3753 #endif
3754 exit(1);
3755 }
3756
3757 opts = qemu_opts_parse_noisily(olist, optarg, true);
3758 if (!opts) {
3759 exit(1);
3760 }
3761 break;
3762 case QEMU_OPTION_add_fd:
3763 #ifndef _WIN32
3764 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3765 optarg, false);
3766 if (!opts) {
3767 exit(1);
3768 }
3769 #else
3770 error_report("File descriptor passing is disabled on this "
3771 "platform");
3772 exit(1);
3773 #endif
3774 break;
3775 case QEMU_OPTION_object:
3776 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3777 optarg, true);
3778 if (!opts) {
3779 exit(1);
3780 }
3781 break;
3782 case QEMU_OPTION_realtime:
3783 warn_report("'-realtime mlock=...' is deprecated, please use "
3784 "'-overcommit mem-lock=...' instead");
3785 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3786 optarg, false);
3787 if (!opts) {
3788 exit(1);
3789 }
3790 /* Don't override the -overcommit option if set */
3791 enable_mlock = enable_mlock ||
3792 qemu_opt_get_bool(opts, "mlock", true);
3793 break;
3794 case QEMU_OPTION_overcommit:
3795 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3796 optarg, false);
3797 if (!opts) {
3798 exit(1);
3799 }
3800 /* Don't override the -realtime option if set */
3801 enable_mlock = enable_mlock ||
3802 qemu_opt_get_bool(opts, "mem-lock", false);
3803 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3804 break;
3805 case QEMU_OPTION_msg:
3806 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3807 false);
3808 if (!opts) {
3809 exit(1);
3810 }
3811 configure_msg(opts);
3812 break;
3813 case QEMU_OPTION_dump_vmstate:
3814 if (vmstate_dump_file) {
3815 error_report("only one '-dump-vmstate' "
3816 "option may be given");
3817 exit(1);
3818 }
3819 vmstate_dump_file = fopen(optarg, "w");
3820 if (vmstate_dump_file == NULL) {
3821 error_report("open %s: %s", optarg, strerror(errno));
3822 exit(1);
3823 }
3824 break;
3825 case QEMU_OPTION_enable_sync_profile:
3826 qsp_enable();
3827 break;
3828 case QEMU_OPTION_nouserconfig:
3829 /* Nothing to be parsed here. Especially, do not error out below. */
3830 break;
3831 default:
3832 if (os_parse_cmd_args(popt->index, optarg)) {
3833 error_report("Option not supported in this build");
3834 exit(1);
3835 }
3836 }
3837 }
3838 }
3839 /*
3840 * Clear error location left behind by the loop.
3841 * Best done right after the loop. Do not insert code here!
3842 */
3843 loc_set_none();
3844
3845 user_register_global_props();
3846
3847 replay_configure(icount_opts);
3848
3849 if (incoming && !preconfig_exit_requested) {
3850 error_report("'preconfig' and 'incoming' options are "
3851 "mutually exclusive");
3852 exit(EXIT_FAILURE);
3853 }
3854
3855 configure_rtc(qemu_find_opts_singleton("rtc"));
3856
3857 machine_class = select_machine();
3858 object_set_machine_compat_props(machine_class->compat_props);
3859
3860 set_memory_options(&ram_slots, &maxram_size, machine_class);
3861
3862 os_daemonize();
3863 rcu_disable_atfork();
3864
3865 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3866 error_reportf_err(err, "cannot create PID file: ");
3867 exit(1);
3868 }
3869
3870 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3871 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3872
3873 if (qemu_init_main_loop(&main_loop_err)) {
3874 error_report_err(main_loop_err);
3875 exit(1);
3876 }
3877
3878 #ifdef CONFIG_SECCOMP
3879 olist = qemu_find_opts_err("sandbox", NULL);
3880 if (olist) {
3881 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3882 }
3883 #endif
3884
3885 qemu_opts_foreach(qemu_find_opts("name"),
3886 parse_name, NULL, &error_fatal);
3887
3888 #ifndef _WIN32
3889 qemu_opts_foreach(qemu_find_opts("add-fd"),
3890 parse_add_fd, NULL, &error_fatal);
3891
3892 qemu_opts_foreach(qemu_find_opts("add-fd"),
3893 cleanup_add_fd, NULL, &error_fatal);
3894 #endif
3895
3896 current_machine = MACHINE(object_new(object_class_get_name(
3897 OBJECT_CLASS(machine_class))));
3898 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3899 exit(0);
3900 }
3901 object_property_add_child(object_get_root(), "machine",
3902 OBJECT(current_machine), &error_abort);
3903 object_property_add_child(container_get(OBJECT(current_machine),
3904 "/unattached"),
3905 "sysbus", OBJECT(sysbus_get_default()),
3906 NULL);
3907
3908 if (machine_class->minimum_page_bits) {
3909 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3910 /* This would be a board error: specifying a minimum smaller than
3911 * a target's compile-time fixed setting.
3912 */
3913 g_assert_not_reached();
3914 }
3915 }
3916
3917 cpu_exec_init_all();
3918
3919 if (machine_class->hw_version) {
3920 qemu_set_hw_version(machine_class->hw_version);
3921 }
3922
3923 if (cpu_option && is_help_option(cpu_option)) {
3924 list_cpus(cpu_option);
3925 exit(0);
3926 }
3927
3928 if (!trace_init_backends()) {
3929 exit(1);
3930 }
3931 trace_init_file(trace_file);
3932
3933 /* Open the logfile at this point and set the log mask if necessary.
3934 */
3935 if (log_file) {
3936 qemu_set_log_filename(log_file, &error_fatal);
3937 }
3938
3939 if (log_mask) {
3940 int mask;
3941 mask = qemu_str_to_log_mask(log_mask);
3942 if (!mask) {
3943 qemu_print_log_usage(stdout);
3944 exit(1);
3945 }
3946 qemu_set_log(mask);
3947 } else {
3948 qemu_set_log(0);
3949 }
3950
3951 /* add configured firmware directories */
3952 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3953 for (i = 0; dirs[i] != NULL; i++) {
3954 qemu_add_data_dir(dirs[i]);
3955 }
3956 g_strfreev(dirs);
3957
3958 /* try to find datadir relative to the executable path */
3959 dir = os_find_datadir();
3960 qemu_add_data_dir(dir);
3961 g_free(dir);
3962
3963 /* add the datadir specified when building */
3964 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3965
3966 /* -L help lists the data directories and exits. */
3967 if (list_data_dirs) {
3968 for (i = 0; i < data_dir_idx; i++) {
3969 printf("%s\n", data_dir[i]);
3970 }
3971 exit(0);
3972 }
3973
3974 /* machine_class: default to UP */
3975 machine_class->max_cpus = machine_class->max_cpus ?: 1;
3976 machine_class->min_cpus = machine_class->min_cpus ?: 1;
3977 machine_class->default_cpus = machine_class->default_cpus ?: 1;
3978
3979 /* default to machine_class->default_cpus */
3980 current_machine->smp.cpus = machine_class->default_cpus;
3981 current_machine->smp.max_cpus = machine_class->default_cpus;
3982 current_machine->smp.cores = 1;
3983 current_machine->smp.threads = 1;
3984
3985 machine_class->smp_parse(current_machine,
3986 qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3987
3988 /* sanity-check smp_cpus and max_cpus against machine_class */
3989 if (current_machine->smp.cpus < machine_class->min_cpus) {
3990 error_report("Invalid SMP CPUs %d. The min CPUs "
3991 "supported by machine '%s' is %d",
3992 current_machine->smp.cpus,
3993 machine_class->name, machine_class->min_cpus);
3994 exit(1);
3995 }
3996 if (current_machine->smp.max_cpus > machine_class->max_cpus) {
3997 error_report("Invalid SMP CPUs %d. The max CPUs "
3998 "supported by machine '%s' is %d",
3999 current_machine->smp.max_cpus,
4000 machine_class->name, machine_class->max_cpus);
4001 exit(1);
4002 }
4003
4004 /*
4005 * Get the default machine options from the machine if it is not already
4006 * specified either by the configuration file or by the command line.
4007 */
4008 if (machine_class->default_machine_opts) {
4009 qemu_opts_set_defaults(qemu_find_opts("machine"),
4010 machine_class->default_machine_opts, 0);
4011 }
4012
4013 qemu_opts_foreach(qemu_find_opts("device"),
4014 default_driver_check, NULL, NULL);
4015 qemu_opts_foreach(qemu_find_opts("global"),
4016 default_driver_check, NULL, NULL);
4017
4018 if (!vga_model && !default_vga) {
4019 vga_interface_type = VGA_DEVICE;
4020 }
4021 if (!has_defaults || machine_class->no_serial) {
4022 default_serial = 0;
4023 }
4024 if (!has_defaults || machine_class->no_parallel) {
4025 default_parallel = 0;
4026 }
4027 if (!has_defaults || machine_class->no_floppy) {
4028 default_floppy = 0;
4029 }
4030 if (!has_defaults || machine_class->no_cdrom) {
4031 default_cdrom = 0;
4032 }
4033 if (!has_defaults || machine_class->no_sdcard) {
4034 default_sdcard = 0;
4035 }
4036 if (!has_defaults) {
4037 default_monitor = 0;
4038 default_net = 0;
4039 default_vga = 0;
4040 }
4041
4042 if (is_daemonized()) {
4043 if (!preconfig_exit_requested) {
4044 error_report("'preconfig' and 'daemonize' options are "
4045 "mutually exclusive");
4046 exit(EXIT_FAILURE);
4047 }
4048
4049 /* According to documentation and historically, -nographic redirects
4050 * serial port, parallel port and monitor to stdio, which does not work
4051 * with -daemonize. We can redirect these to null instead, but since
4052 * -nographic is legacy, let's just error out.
4053 * We disallow -nographic only if all other ports are not redirected
4054 * explicitly, to not break existing legacy setups which uses
4055 * -nographic _and_ redirects all ports explicitly - this is valid
4056 * usage, -nographic is just a no-op in this case.
4057 */
4058 if (nographic
4059 && (default_parallel || default_serial || default_monitor)) {
4060 error_report("-nographic cannot be used with -daemonize");
4061 exit(1);
4062 }
4063 #ifdef CONFIG_CURSES
4064 if (dpy.type == DISPLAY_TYPE_CURSES) {
4065 error_report("curses display cannot be used with -daemonize");
4066 exit(1);
4067 }
4068 #endif
4069 }
4070
4071 if (nographic) {
4072 if (default_parallel)
4073 add_device_config(DEV_PARALLEL, "null");
4074 if (default_serial && default_monitor) {
4075 add_device_config(DEV_SERIAL, "mon:stdio");
4076 } else {
4077 if (default_serial)
4078 add_device_config(DEV_SERIAL, "stdio");
4079 if (default_monitor)
4080 monitor_parse("stdio", "readline", false);
4081 }
4082 } else {
4083 if (default_serial)
4084 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4085 if (default_parallel)
4086 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4087 if (default_monitor)
4088 monitor_parse("vc:80Cx24C", "readline", false);
4089 }
4090
4091 #if defined(CONFIG_VNC)
4092 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4093 display_remote++;
4094 }
4095 #endif
4096 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4097 if (!qemu_display_find_default(&dpy)) {
4098 dpy.type = DISPLAY_TYPE_NONE;
4099 #if defined(CONFIG_VNC)
4100 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4101 #endif
4102 }
4103 }
4104 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4105 dpy.type = DISPLAY_TYPE_NONE;
4106 }
4107
4108 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4109 error_report("-alt-grab and -ctrl-grab are only valid "
4110 "for SDL, ignoring option");
4111 }
4112 if (dpy.has_window_close &&
4113 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4114 error_report("-no-quit is only valid for GTK and SDL, "
4115 "ignoring option");
4116 }
4117
4118 qemu_display_early_init(&dpy);
4119 qemu_console_early_init();
4120
4121 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4122 #if defined(CONFIG_OPENGL)
4123 error_report("OpenGL is not supported by the display");
4124 #else
4125 error_report("OpenGL support is disabled");
4126 #endif
4127 exit(1);
4128 }
4129
4130 page_size_init();
4131 socket_init();
4132
4133 qemu_opts_foreach(qemu_find_opts("object"),
4134 user_creatable_add_opts_foreach,
4135 object_create_initial, &error_fatal);
4136
4137 qemu_opts_foreach(qemu_find_opts("chardev"),
4138 chardev_init_func, NULL, &error_fatal);
4139 /* now chardevs have been created we may have semihosting to connect */
4140 qemu_semihosting_connect_chardevs();
4141
4142 #ifdef CONFIG_VIRTFS
4143 qemu_opts_foreach(qemu_find_opts("fsdev"),
4144 fsdev_init_func, NULL, &error_fatal);
4145 #endif
4146
4147 if (qemu_opts_foreach(qemu_find_opts("device"),
4148 device_help_func, NULL, NULL)) {
4149 exit(0);
4150 }
4151
4152 /*
4153 * Note: we need to create block backends before
4154 * machine_set_property(), so machine properties can refer to
4155 * them.
4156 */
4157 configure_blockdev(&bdo_queue, machine_class, snapshot);
4158
4159 machine_opts = qemu_get_machine_opts();
4160 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4161 &error_fatal);
4162 current_machine->ram_size = ram_size;
4163 current_machine->maxram_size = maxram_size;
4164 current_machine->ram_slots = ram_slots;
4165
4166 /*
4167 * Note: uses machine properties such as kernel-irqchip, must run
4168 * after machine_set_property().
4169 */
4170 configure_accelerator(current_machine, argv[0]);
4171
4172 /*
4173 * Beware, QOM objects created before this point miss global and
4174 * compat properties.
4175 *
4176 * Global properties get set up by qdev_prop_register_global(),
4177 * called from user_register_global_props(), and certain option
4178 * desugaring. Also in CPU feature desugaring (buried in
4179 * parse_cpu_option()), which happens below this point, but may
4180 * only target the CPU type, which can only be created after
4181 * parse_cpu_option() returned the type.
4182 *
4183 * Machine compat properties: object_set_machine_compat_props().
4184 * Accelerator compat props: object_set_accelerator_compat_props(),
4185 * called from configure_accelerator().
4186 */
4187
4188 if (!qtest_enabled() && machine_class->deprecation_reason) {
4189 error_report("Machine type '%s' is deprecated: %s",
4190 machine_class->name, machine_class->deprecation_reason);
4191 }
4192
4193 /*
4194 * Note: creates a QOM object, must run only after global and
4195 * compat properties have been set up.
4196 */
4197 migration_object_init();
4198
4199 if (qtest_chrdev) {
4200 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4201 }
4202
4203 machine_opts = qemu_get_machine_opts();
4204 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4205 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4206 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4207 bios_name = qemu_opt_get(machine_opts, "firmware");
4208
4209 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4210 if (opts) {
4211 boot_order = qemu_opt_get(opts, "order");
4212 if (boot_order) {
4213 validate_bootdevices(boot_order, &error_fatal);
4214 }
4215
4216 boot_once = qemu_opt_get(opts, "once");
4217 if (boot_once) {
4218 validate_bootdevices(boot_once, &error_fatal);
4219 }
4220
4221 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4222 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4223 }
4224
4225 if (!boot_order) {
4226 boot_order = machine_class->default_boot_order;
4227 }
4228
4229 if (!kernel_cmdline) {
4230 kernel_cmdline = "";
4231 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4232 }
4233
4234 linux_boot = (kernel_filename != NULL);
4235
4236 if (!linux_boot && *kernel_cmdline != '\0') {
4237 error_report("-append only allowed with -kernel option");
4238 exit(1);
4239 }
4240
4241 if (!linux_boot && initrd_filename != NULL) {
4242 error_report("-initrd only allowed with -kernel option");
4243 exit(1);
4244 }
4245
4246 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4247 /* fall back to the -kernel/-append */
4248 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4249 }
4250
4251 /* spice needs the timers to be initialized by this point */
4252 qemu_spice_init();
4253
4254 cpu_ticks_init();
4255 if (icount_opts) {
4256 if (!tcg_enabled()) {
4257 error_report("-icount is not allowed with hardware virtualization");
4258 exit(1);
4259 }
4260 configure_icount(icount_opts, &error_abort);
4261 qemu_opts_del(icount_opts);
4262 }
4263
4264 if (tcg_enabled()) {
4265 qemu_tcg_configure(accel_opts, &error_fatal);
4266 }
4267
4268 if (default_net) {
4269 QemuOptsList *net = qemu_find_opts("net");
4270 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4271 #ifdef CONFIG_SLIRP
4272 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4273 #endif
4274 }
4275
4276 if (net_init_clients(&err) < 0) {
4277 error_report_err(err);
4278 exit(1);
4279 }
4280
4281 qemu_opts_foreach(qemu_find_opts("object"),
4282 user_creatable_add_opts_foreach,
4283 object_create_delayed, &error_fatal);
4284
4285 tpm_init();
4286
4287 /* init the bluetooth world */
4288 if (foreach_device_config(DEV_BT, bt_parse))
4289 exit(1);
4290
4291 if (!xen_enabled()) {
4292 /* On 32-bit hosts, QEMU is limited by virtual address space */
4293 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4294 error_report("at most 2047 MB RAM can be simulated");
4295 exit(1);
4296 }
4297 }
4298
4299 blk_mig_init();
4300 ram_mig_init();
4301 dirty_bitmap_mig_init();
4302
4303 qemu_opts_foreach(qemu_find_opts("mon"),
4304 mon_init_func, NULL, &error_fatal);
4305
4306 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4307 exit(1);
4308 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4309 exit(1);
4310 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4311 exit(1);
4312
4313 /* If no default VGA is requested, the default is "none". */
4314 if (default_vga) {
4315 vga_model = get_default_vga_model(machine_class);
4316 }
4317 if (vga_model) {
4318 select_vgahw(machine_class, vga_model);
4319 }
4320
4321 if (watchdog) {
4322 i = select_watchdog(watchdog);
4323 if (i > 0)
4324 exit (i == 1 ? 1 : 0);
4325 }
4326
4327 /* This checkpoint is required by replay to separate prior clock
4328 reading from the other reads, because timer polling functions query
4329 clock values from the log. */
4330 replay_checkpoint(CHECKPOINT_INIT);
4331 qdev_machine_init();
4332
4333 current_machine->boot_order = boot_order;
4334
4335 /* parse features once if machine provides default cpu_type */
4336 current_machine->cpu_type = machine_class->default_cpu_type;
4337 if (cpu_option) {
4338 current_machine->cpu_type = parse_cpu_option(cpu_option);
4339 }
4340 parse_numa_opts(current_machine);
4341
4342 /* do monitor/qmp handling at preconfig state if requested */
4343 main_loop();
4344
4345 audio_init_audiodevs();
4346
4347 /* from here on runstate is RUN_STATE_PRELAUNCH */
4348 machine_run_board_init(current_machine);
4349
4350 realtime_init();
4351
4352 soundhw_init();
4353
4354 if (hax_enabled()) {
4355 hax_sync_vcpus();
4356 }
4357
4358 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4359 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4360
4361 /* init USB devices */
4362 if (machine_usb(current_machine)) {
4363 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4364 exit(1);
4365 }
4366
4367 /* Check if IGD GFX passthrough. */
4368 igd_gfx_passthru();
4369
4370 /* init generic devices */
4371 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4372 qemu_opts_foreach(qemu_find_opts("device"),
4373 device_init_func, NULL, &error_fatal);
4374
4375 cpu_synchronize_all_post_init();
4376
4377 rom_reset_order_override();
4378
4379 /* Did we create any drives that we failed to create a device for? */
4380 drive_check_orphaned();
4381
4382 /* Don't warn about the default network setup that you get if
4383 * no command line -net or -netdev options are specified. There
4384 * are two cases that we would otherwise complain about:
4385 * (1) board doesn't support a NIC but the implicit "-net nic"
4386 * requested one
4387 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4388 * sets up a nic that isn't connected to anything.
4389 */
4390 if (!default_net && (!qtest_enabled() || has_defaults)) {
4391 net_check_clients();
4392 }
4393
4394 if (boot_once) {
4395 qemu_boot_set(boot_once, &error_fatal);
4396 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4397 }
4398
4399 /* init local displays */
4400 ds = init_displaystate();
4401 qemu_display_init(ds, &dpy);
4402
4403 /* must be after terminal init, SDL library changes signal handlers */
4404 os_setup_signal_handling();
4405
4406 /* init remote displays */
4407 #ifdef CONFIG_VNC
4408 qemu_opts_foreach(qemu_find_opts("vnc"),
4409 vnc_init_func, NULL, &error_fatal);
4410 #endif
4411
4412 if (using_spice) {
4413 qemu_spice_display_init();
4414 }
4415
4416 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4417 exit(1);
4418 }
4419
4420 qdev_machine_creation_done();
4421
4422 /* TODO: once all bus devices are qdevified, this should be done
4423 * when bus is created by qdev.c */
4424 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4425 qemu_run_machine_init_done_notifiers();
4426
4427 if (rom_check_and_register_reset() != 0) {
4428 error_report("rom check and register reset failed");
4429 exit(1);
4430 }
4431
4432 replay_start();
4433
4434 /* This checkpoint is required by replay to separate prior clock
4435 reading from the other reads, because timer polling functions query
4436 clock values from the log. */
4437 replay_checkpoint(CHECKPOINT_RESET);
4438 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4439 register_global_state();
4440 if (loadvm) {
4441 Error *local_err = NULL;
4442 if (load_snapshot(loadvm, &local_err) < 0) {
4443 error_report_err(local_err);
4444 autostart = 0;
4445 exit(1);
4446 }
4447 }
4448 if (replay_mode != REPLAY_MODE_NONE) {
4449 replay_vmstate_init();
4450 }
4451
4452 qdev_prop_check_globals();
4453 if (vmstate_dump_file) {
4454 /* dump and exit */
4455 dump_vmstate_json_to_file(vmstate_dump_file);
4456 return 0;
4457 }
4458
4459 if (incoming) {
4460 Error *local_err = NULL;
4461 qemu_start_incoming_migration(incoming, &local_err);
4462 if (local_err) {
4463 error_reportf_err(local_err, "-incoming %s: ", incoming);
4464 exit(1);
4465 }
4466 } else if (autostart) {
4467 vm_start();
4468 }
4469
4470 accel_setup_post(current_machine);
4471 os_setup_post();
4472
4473 main_loop();
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
4497 job_cancel_sync_all();
4498 bdrv_close_all();
4499
4500 res_free();
4501
4502 /* vhost-user must be cleaned up before chardevs. */
4503 tpm_cleanup();
4504 net_cleanup();
4505 audio_cleanup();
4506 monitor_cleanup();
4507 qemu_chr_cleanup();
4508 user_creatable_cleanup();
4509 /* TODO: unref root container, check all devices are ok */
4510
4511 return 0;
4512 }
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