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