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virtio/pci/migration: Convert to VMState
[qemu.git] / vl.c
blobd7c349233fed4a31a0c30cc308bd1d8ac7aa39c0
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 #include "qemu/osdep.h"
25 #include "qemu-version.h"
26 #include "qemu/cutils.h"
27 #include "qemu/help_option.h"
28 #include "qemu/uuid.h"
29
30 #ifdef CONFIG_SECCOMP
31 #include "sysemu/seccomp.h"
32 #include "sys/prctl.h"
33 #endif
34
35 #ifdef CONFIG_SDL
36 #if defined(__APPLE__) || defined(main)
37 #include <SDL.h>
38 int qemu_main(int argc, char **argv, char **envp);
39 int main(int argc, char **argv)
40 {
41 return qemu_main(argc, argv, NULL);
42 }
43 #undef main
44 #define main qemu_main
45 #endif
46 #endif /* CONFIG_SDL */
47
48 #ifdef CONFIG_COCOA
49 #undef main
50 #define main qemu_main
51 #endif /* CONFIG_COCOA */
52
53
54 #include "qemu/error-report.h"
55 #include "qemu/sockets.h"
56 #include "hw/hw.h"
57 #include "hw/boards.h"
58 #include "sysemu/accel.h"
59 #include "hw/usb.h"
60 #include "hw/i386/pc.h"
61 #include "hw/isa/isa.h"
62 #include "hw/scsi/scsi.h"
63 #include "hw/bt.h"
64 #include "sysemu/watchdog.h"
65 #include "hw/smbios/smbios.h"
66 #include "hw/acpi/acpi.h"
67 #include "hw/xen/xen.h"
68 #include "hw/qdev.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "sysemu/bt.h"
72 #include "net/net.h"
73 #include "net/slirp.h"
74 #include "monitor/monitor.h"
75 #include "ui/console.h"
76 #include "ui/input.h"
77 #include "sysemu/sysemu.h"
78 #include "sysemu/numa.h"
79 #include "exec/gdbstub.h"
80 #include "qemu/timer.h"
81 #include "chardev/char.h"
82 #include "qemu/bitmap.h"
83 #include "qemu/log.h"
84 #include "sysemu/blockdev.h"
85 #include "hw/block/block.h"
86 #include "migration/misc.h"
87 #include "migration/snapshot.h"
88 #include "migration/global_state.h"
89 #include "sysemu/tpm.h"
90 #include "sysemu/dma.h"
91 #include "hw/audio/soundhw.h"
92 #include "audio/audio.h"
93 #include "sysemu/cpus.h"
94 #include "migration/colo.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qapi/qobject-input-visitor.h"
99 #include "qapi-visit.h"
100 #include "qapi/qmp/qjson.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qmp-commands.h"
105 #include "qemu/main-loop.h"
106 #ifdef CONFIG_VIRTFS
107 #include "fsdev/qemu-fsdev.h"
108 #endif
109 #include "sysemu/qtest.h"
110
111 #include "disas/disas.h"
112
113
114 #include "slirp/libslirp.h"
115
116 #include "trace-root.h"
117 #include "trace/control.h"
118 #include "qemu/queue.h"
119 #include "sysemu/arch_init.h"
120
121 #include "ui/qemu-spice.h"
122 #include "qapi/string-input-visitor.h"
123 #include "qapi/opts-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "qapi-event.h"
126 #include "exec/semihost.h"
127 #include "crypto/init.h"
128 #include "sysemu/replay.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133 #define MAX_SCLP_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int request_opengl = -1;
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 int nb_nics;
147 NICInfo nd_table[MAX_NICS];
148 int autostart;
149 static int rtc_utc = 1;
150 static int rtc_date_offset = -1; /* -1 means no change */
151 QEMUClockType rtc_clock;
152 int vga_interface_type = VGA_NONE;
153 static int full_screen = 0;
154 static int no_frame = 0;
155 int no_quit = 0;
156 static bool grab_on_hover;
157 Chardev *serial_hds[MAX_SERIAL_PORTS];
158 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
159 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
160 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
161 int win2k_install_hack = 0;
162 int singlestep = 0;
163 int smp_cpus = 1;
164 unsigned int max_cpus = 1;
165 int smp_cores = 1;
166 int smp_threads = 1;
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 cursor_hide = 1;
173 int graphic_rotate = 0;
174 const char *watchdog;
175 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
176 int nb_option_roms;
177 int old_param = 0;
178 const char *qemu_name;
179 int alt_grab = 0;
180 int ctrl_grab = 0;
181 unsigned int nb_prom_envs = 0;
182 const char *prom_envs[MAX_PROM_ENVS];
183 int boot_menu;
184 bool boot_strict;
185 uint8_t *boot_splash_filedata;
186 size_t boot_splash_filedata_size;
187 uint8_t qemu_extra_params_fw[2];
188
189 int icount_align_option;
190
191 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
192 * little-endian "wire format" described in the SMBIOS 2.6 specification.
193 */
194 QemuUUID qemu_uuid;
195 bool qemu_uuid_set;
196
197 static NotifierList exit_notifiers =
198 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
199
200 static NotifierList machine_init_done_notifiers =
201 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
202
203 bool xen_allowed;
204 uint32_t xen_domid;
205 enum xen_mode xen_mode = XEN_EMULATE;
206 bool xen_domid_restrict;
207
208 static int has_defaults = 1;
209 static int default_serial = 1;
210 static int default_parallel = 1;
211 static int default_virtcon = 1;
212 static int default_sclp = 1;
213 static int default_monitor = 1;
214 static int default_floppy = 1;
215 static int default_cdrom = 1;
216 static int default_sdcard = 1;
217 static int default_vga = 1;
218 static int default_net = 1;
219
220 static struct {
221 const char *driver;
222 int *flag;
223 } default_list[] = {
224 { .driver = "isa-serial", .flag = &default_serial },
225 { .driver = "isa-parallel", .flag = &default_parallel },
226 { .driver = "isa-fdc", .flag = &default_floppy },
227 { .driver = "floppy", .flag = &default_floppy },
228 { .driver = "ide-cd", .flag = &default_cdrom },
229 { .driver = "ide-hd", .flag = &default_cdrom },
230 { .driver = "ide-drive", .flag = &default_cdrom },
231 { .driver = "scsi-cd", .flag = &default_cdrom },
232 { .driver = "scsi-hd", .flag = &default_cdrom },
233 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
234 { .driver = "virtio-serial", .flag = &default_virtcon },
235 { .driver = "VGA", .flag = &default_vga },
236 { .driver = "isa-vga", .flag = &default_vga },
237 { .driver = "cirrus-vga", .flag = &default_vga },
238 { .driver = "isa-cirrus-vga", .flag = &default_vga },
239 { .driver = "vmware-svga", .flag = &default_vga },
240 { .driver = "qxl-vga", .flag = &default_vga },
241 { .driver = "virtio-vga", .flag = &default_vga },
242 };
243
244 static QemuOptsList qemu_rtc_opts = {
245 .name = "rtc",
246 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
247 .desc = {
248 {
249 .name = "base",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "clock",
253 .type = QEMU_OPT_STRING,
254 },{
255 .name = "driftfix",
256 .type = QEMU_OPT_STRING,
257 },
258 { /* end of list */ }
259 },
260 };
261
262 static QemuOptsList qemu_sandbox_opts = {
263 .name = "sandbox",
264 .implied_opt_name = "enable",
265 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
266 .desc = {
267 {
268 .name = "enable",
269 .type = QEMU_OPT_BOOL,
270 },
271 {
272 .name = "obsolete",
273 .type = QEMU_OPT_STRING,
274 },
275 {
276 .name = "elevateprivileges",
277 .type = QEMU_OPT_STRING,
278 },
279 {
280 .name = "spawn",
281 .type = QEMU_OPT_STRING,
282 },
283 {
284 .name = "resourcecontrol",
285 .type = QEMU_OPT_STRING,
286 },
287 { /* end of list */ }
288 },
289 };
290
291 static QemuOptsList qemu_option_rom_opts = {
292 .name = "option-rom",
293 .implied_opt_name = "romfile",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
295 .desc = {
296 {
297 .name = "bootindex",
298 .type = QEMU_OPT_NUMBER,
299 }, {
300 .name = "romfile",
301 .type = QEMU_OPT_STRING,
302 },
303 { /* end of list */ }
304 },
305 };
306
307 static QemuOptsList qemu_machine_opts = {
308 .name = "machine",
309 .implied_opt_name = "type",
310 .merge_lists = true,
311 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
312 .desc = {
313 /*
314 * no elements => accept any
315 * sanity checking will happen later
316 * when setting machine properties
317 */
318 { }
319 },
320 };
321
322 static QemuOptsList qemu_accel_opts = {
323 .name = "accel",
324 .implied_opt_name = "accel",
325 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
326 .merge_lists = true,
327 .desc = {
328 {
329 .name = "accel",
330 .type = QEMU_OPT_STRING,
331 .help = "Select the type of accelerator",
332 },
333 {
334 .name = "thread",
335 .type = QEMU_OPT_STRING,
336 .help = "Enable/disable multi-threaded TCG",
337 },
338 { /* end of list */ }
339 },
340 };
341
342 static QemuOptsList qemu_boot_opts = {
343 .name = "boot-opts",
344 .implied_opt_name = "order",
345 .merge_lists = true,
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
347 .desc = {
348 {
349 .name = "order",
350 .type = QEMU_OPT_STRING,
351 }, {
352 .name = "once",
353 .type = QEMU_OPT_STRING,
354 }, {
355 .name = "menu",
356 .type = QEMU_OPT_BOOL,
357 }, {
358 .name = "splash",
359 .type = QEMU_OPT_STRING,
360 }, {
361 .name = "splash-time",
362 .type = QEMU_OPT_STRING,
363 }, {
364 .name = "reboot-timeout",
365 .type = QEMU_OPT_STRING,
366 }, {
367 .name = "strict",
368 .type = QEMU_OPT_BOOL,
369 },
370 { /*End of list */ }
371 },
372 };
373
374 static QemuOptsList qemu_add_fd_opts = {
375 .name = "add-fd",
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
377 .desc = {
378 {
379 .name = "fd",
380 .type = QEMU_OPT_NUMBER,
381 .help = "file descriptor of which a duplicate is added to fd set",
382 },{
383 .name = "set",
384 .type = QEMU_OPT_NUMBER,
385 .help = "ID of the fd set to add fd to",
386 },{
387 .name = "opaque",
388 .type = QEMU_OPT_STRING,
389 .help = "free-form string used to describe fd",
390 },
391 { /* end of list */ }
392 },
393 };
394
395 static QemuOptsList qemu_object_opts = {
396 .name = "object",
397 .implied_opt_name = "qom-type",
398 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
399 .desc = {
400 { }
401 },
402 };
403
404 static QemuOptsList qemu_tpmdev_opts = {
405 .name = "tpmdev",
406 .implied_opt_name = "type",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
408 .desc = {
409 /* options are defined in the TPM backends */
410 { /* end of list */ }
411 },
412 };
413
414 static QemuOptsList qemu_realtime_opts = {
415 .name = "realtime",
416 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
417 .desc = {
418 {
419 .name = "mlock",
420 .type = QEMU_OPT_BOOL,
421 },
422 { /* end of list */ }
423 },
424 };
425
426 static QemuOptsList qemu_msg_opts = {
427 .name = "msg",
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
429 .desc = {
430 {
431 .name = "timestamp",
432 .type = QEMU_OPT_BOOL,
433 },
434 { /* end of list */ }
435 },
436 };
437
438 static QemuOptsList qemu_name_opts = {
439 .name = "name",
440 .implied_opt_name = "guest",
441 .merge_lists = true,
442 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
443 .desc = {
444 {
445 .name = "guest",
446 .type = QEMU_OPT_STRING,
447 .help = "Sets the name of the guest.\n"
448 "This name will be displayed in the SDL window caption.\n"
449 "The name will also be used for the VNC server",
450 }, {
451 .name = "process",
452 .type = QEMU_OPT_STRING,
453 .help = "Sets the name of the QEMU process, as shown in top etc",
454 }, {
455 .name = "debug-threads",
456 .type = QEMU_OPT_BOOL,
457 .help = "When enabled, name the individual threads; defaults off.\n"
458 "NOTE: The thread names are for debugging and not a\n"
459 "stable API.",
460 },
461 { /* End of list */ }
462 },
463 };
464
465 static QemuOptsList qemu_mem_opts = {
466 .name = "memory",
467 .implied_opt_name = "size",
468 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
469 .merge_lists = true,
470 .desc = {
471 {
472 .name = "size",
473 .type = QEMU_OPT_SIZE,
474 },
475 {
476 .name = "slots",
477 .type = QEMU_OPT_NUMBER,
478 },
479 {
480 .name = "maxmem",
481 .type = QEMU_OPT_SIZE,
482 },
483 { /* end of list */ }
484 },
485 };
486
487 static QemuOptsList qemu_icount_opts = {
488 .name = "icount",
489 .implied_opt_name = "shift",
490 .merge_lists = true,
491 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
492 .desc = {
493 {
494 .name = "shift",
495 .type = QEMU_OPT_STRING,
496 }, {
497 .name = "align",
498 .type = QEMU_OPT_BOOL,
499 }, {
500 .name = "sleep",
501 .type = QEMU_OPT_BOOL,
502 }, {
503 .name = "rr",
504 .type = QEMU_OPT_STRING,
505 }, {
506 .name = "rrfile",
507 .type = QEMU_OPT_STRING,
508 }, {
509 .name = "rrsnapshot",
510 .type = QEMU_OPT_STRING,
511 },
512 { /* end of list */ }
513 },
514 };
515
516 static QemuOptsList qemu_semihosting_config_opts = {
517 .name = "semihosting-config",
518 .implied_opt_name = "enable",
519 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
520 .desc = {
521 {
522 .name = "enable",
523 .type = QEMU_OPT_BOOL,
524 }, {
525 .name = "target",
526 .type = QEMU_OPT_STRING,
527 }, {
528 .name = "arg",
529 .type = QEMU_OPT_STRING,
530 },
531 { /* end of list */ }
532 },
533 };
534
535 static QemuOptsList qemu_fw_cfg_opts = {
536 .name = "fw_cfg",
537 .implied_opt_name = "name",
538 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
539 .desc = {
540 {
541 .name = "name",
542 .type = QEMU_OPT_STRING,
543 .help = "Sets the fw_cfg name of the blob to be inserted",
544 }, {
545 .name = "file",
546 .type = QEMU_OPT_STRING,
547 .help = "Sets the name of the file from which\n"
548 "the fw_cfg blob will be loaded",
549 }, {
550 .name = "string",
551 .type = QEMU_OPT_STRING,
552 .help = "Sets content of the blob to be inserted from a string",
553 },
554 { /* end of list */ }
555 },
556 };
557
558 /**
559 * Get machine options
560 *
561 * Returns: machine options (never null).
562 */
563 QemuOpts *qemu_get_machine_opts(void)
564 {
565 return qemu_find_opts_singleton("machine");
566 }
567
568 const char *qemu_get_vm_name(void)
569 {
570 return qemu_name;
571 }
572
573 static void res_free(void)
574 {
575 g_free(boot_splash_filedata);
576 boot_splash_filedata = NULL;
577 }
578
579 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
580 {
581 const char *driver = qemu_opt_get(opts, "driver");
582 int i;
583
584 if (!driver)
585 return 0;
586 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
587 if (strcmp(default_list[i].driver, driver) != 0)
588 continue;
589 *(default_list[i].flag) = 0;
590 }
591 return 0;
592 }
593
594 /***********************************************************/
595 /* QEMU state */
596
597 static RunState current_run_state = RUN_STATE_PRELAUNCH;
598
599 /* We use RUN_STATE__MAX but any invalid value will do */
600 static RunState vmstop_requested = RUN_STATE__MAX;
601 static QemuMutex vmstop_lock;
602
603 typedef struct {
604 RunState from;
605 RunState to;
606 } RunStateTransition;
607
608 static const RunStateTransition runstate_transitions_def[] = {
609 /* from -> to */
610 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
611 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
612 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
613
614 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
615 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
616 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
617 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
618 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
619 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
620 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
621 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
622 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
624 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
625 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
626
627 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
628 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
630
631 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
632 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
634
635 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
636 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
638 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
639 { RUN_STATE_PAUSED, RUN_STATE_COLO},
640
641 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
642 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
644
645 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
646 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
647 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
648
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
652 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
653 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
654
655 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
656 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
657
658 { RUN_STATE_COLO, RUN_STATE_RUNNING },
659
660 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
661 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
662 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
663 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
664 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
665 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
666 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
667 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
668 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
669 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
670 { RUN_STATE_RUNNING, RUN_STATE_COLO},
671
672 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
673
674 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
675 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
677
678 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
679 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
680 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
681 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
682 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
683 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
684
685 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
686 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
687 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
688 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
689
690 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
691 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
692 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
693
694 { RUN_STATE__MAX, RUN_STATE__MAX },
695 };
696
697 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
698
699 bool runstate_check(RunState state)
700 {
701 return current_run_state == state;
702 }
703
704 bool runstate_store(char *str, size_t size)
705 {
706 const char *state = RunState_str(current_run_state);
707 size_t len = strlen(state) + 1;
708
709 if (len > size) {
710 return false;
711 }
712 memcpy(str, state, len);
713 return true;
714 }
715
716 static void runstate_init(void)
717 {
718 const RunStateTransition *p;
719
720 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
721 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
722 runstate_valid_transitions[p->from][p->to] = true;
723 }
724
725 qemu_mutex_init(&vmstop_lock);
726 }
727
728 /* This function will abort() on invalid state transitions */
729 void runstate_set(RunState new_state)
730 {
731 assert(new_state < RUN_STATE__MAX);
732
733 if (current_run_state == new_state) {
734 return;
735 }
736
737 if (!runstate_valid_transitions[current_run_state][new_state]) {
738 error_report("invalid runstate transition: '%s' -> '%s'",
739 RunState_str(current_run_state),
740 RunState_str(new_state));
741 abort();
742 }
743 trace_runstate_set(new_state);
744 current_run_state = new_state;
745 }
746
747 int runstate_is_running(void)
748 {
749 return runstate_check(RUN_STATE_RUNNING);
750 }
751
752 bool runstate_needs_reset(void)
753 {
754 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
755 runstate_check(RUN_STATE_SHUTDOWN);
756 }
757
758 StatusInfo *qmp_query_status(Error **errp)
759 {
760 StatusInfo *info = g_malloc0(sizeof(*info));
761
762 info->running = runstate_is_running();
763 info->singlestep = singlestep;
764 info->status = current_run_state;
765
766 return info;
767 }
768
769 bool qemu_vmstop_requested(RunState *r)
770 {
771 qemu_mutex_lock(&vmstop_lock);
772 *r = vmstop_requested;
773 vmstop_requested = RUN_STATE__MAX;
774 qemu_mutex_unlock(&vmstop_lock);
775 return *r < RUN_STATE__MAX;
776 }
777
778 void qemu_system_vmstop_request_prepare(void)
779 {
780 qemu_mutex_lock(&vmstop_lock);
781 }
782
783 void qemu_system_vmstop_request(RunState state)
784 {
785 vmstop_requested = state;
786 qemu_mutex_unlock(&vmstop_lock);
787 qemu_notify_event();
788 }
789
790 /***********************************************************/
791 /* real time host monotonic timer */
792
793 static time_t qemu_time(void)
794 {
795 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
796 }
797
798 /***********************************************************/
799 /* host time/date access */
800 void qemu_get_timedate(struct tm *tm, int offset)
801 {
802 time_t ti = qemu_time();
803
804 ti += offset;
805 if (rtc_date_offset == -1) {
806 if (rtc_utc)
807 gmtime_r(&ti, tm);
808 else
809 localtime_r(&ti, tm);
810 } else {
811 ti -= rtc_date_offset;
812 gmtime_r(&ti, tm);
813 }
814 }
815
816 int qemu_timedate_diff(struct tm *tm)
817 {
818 time_t seconds;
819
820 if (rtc_date_offset == -1)
821 if (rtc_utc)
822 seconds = mktimegm(tm);
823 else {
824 struct tm tmp = *tm;
825 tmp.tm_isdst = -1; /* use timezone to figure it out */
826 seconds = mktime(&tmp);
827 }
828 else
829 seconds = mktimegm(tm) + rtc_date_offset;
830
831 return seconds - qemu_time();
832 }
833
834 static void configure_rtc_date_offset(const char *startdate, int legacy)
835 {
836 time_t rtc_start_date;
837 struct tm tm;
838
839 if (!strcmp(startdate, "now") && legacy) {
840 rtc_date_offset = -1;
841 } else {
842 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
843 &tm.tm_year,
844 &tm.tm_mon,
845 &tm.tm_mday,
846 &tm.tm_hour,
847 &tm.tm_min,
848 &tm.tm_sec) == 6) {
849 /* OK */
850 } else if (sscanf(startdate, "%d-%d-%d",
851 &tm.tm_year,
852 &tm.tm_mon,
853 &tm.tm_mday) == 3) {
854 tm.tm_hour = 0;
855 tm.tm_min = 0;
856 tm.tm_sec = 0;
857 } else {
858 goto date_fail;
859 }
860 tm.tm_year -= 1900;
861 tm.tm_mon--;
862 rtc_start_date = mktimegm(&tm);
863 if (rtc_start_date == -1) {
864 date_fail:
865 error_report("invalid date format");
866 error_printf("valid formats: "
867 "'2006-06-17T16:01:21' or '2006-06-17'\n");
868 exit(1);
869 }
870 rtc_date_offset = qemu_time() - rtc_start_date;
871 }
872 }
873
874 static void configure_rtc(QemuOpts *opts)
875 {
876 const char *value;
877
878 value = qemu_opt_get(opts, "base");
879 if (value) {
880 if (!strcmp(value, "utc")) {
881 rtc_utc = 1;
882 } else if (!strcmp(value, "localtime")) {
883 Error *blocker = NULL;
884 rtc_utc = 0;
885 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
886 "-rtc base=localtime");
887 replay_add_blocker(blocker);
888 } else {
889 configure_rtc_date_offset(value, 0);
890 }
891 }
892 value = qemu_opt_get(opts, "clock");
893 if (value) {
894 if (!strcmp(value, "host")) {
895 rtc_clock = QEMU_CLOCK_HOST;
896 } else if (!strcmp(value, "rt")) {
897 rtc_clock = QEMU_CLOCK_REALTIME;
898 } else if (!strcmp(value, "vm")) {
899 rtc_clock = QEMU_CLOCK_VIRTUAL;
900 } else {
901 error_report("invalid option value '%s'", value);
902 exit(1);
903 }
904 }
905 value = qemu_opt_get(opts, "driftfix");
906 if (value) {
907 if (!strcmp(value, "slew")) {
908 static GlobalProperty slew_lost_ticks = {
909 .driver = "mc146818rtc",
910 .property = "lost_tick_policy",
911 .value = "slew",
912 };
913
914 qdev_prop_register_global(&slew_lost_ticks);
915 } else if (!strcmp(value, "none")) {
916 /* discard is default */
917 } else {
918 error_report("invalid option value '%s'", value);
919 exit(1);
920 }
921 }
922 }
923
924 /***********************************************************/
925 /* Bluetooth support */
926 static int nb_hcis;
927 static int cur_hci;
928 static struct HCIInfo *hci_table[MAX_NICS];
929
930 struct HCIInfo *qemu_next_hci(void)
931 {
932 if (cur_hci == nb_hcis)
933 return &null_hci;
934
935 return hci_table[cur_hci++];
936 }
937
938 static int bt_hci_parse(const char *str)
939 {
940 struct HCIInfo *hci;
941 bdaddr_t bdaddr;
942
943 if (nb_hcis >= MAX_NICS) {
944 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
945 return -1;
946 }
947
948 hci = hci_init(str);
949 if (!hci)
950 return -1;
951
952 bdaddr.b[0] = 0x52;
953 bdaddr.b[1] = 0x54;
954 bdaddr.b[2] = 0x00;
955 bdaddr.b[3] = 0x12;
956 bdaddr.b[4] = 0x34;
957 bdaddr.b[5] = 0x56 + nb_hcis;
958 hci->bdaddr_set(hci, bdaddr.b);
959
960 hci_table[nb_hcis++] = hci;
961
962 return 0;
963 }
964
965 static void bt_vhci_add(int vlan_id)
966 {
967 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
968
969 if (!vlan->slave)
970 warn_report("adding a VHCI to an empty scatternet %i",
971 vlan_id);
972
973 bt_vhci_init(bt_new_hci(vlan));
974 }
975
976 static struct bt_device_s *bt_device_add(const char *opt)
977 {
978 struct bt_scatternet_s *vlan;
979 int vlan_id = 0;
980 char *endp = strstr(opt, ",vlan=");
981 int len = (endp ? endp - opt : strlen(opt)) + 1;
982 char devname[10];
983
984 pstrcpy(devname, MIN(sizeof(devname), len), opt);
985
986 if (endp) {
987 vlan_id = strtol(endp + 6, &endp, 0);
988 if (*endp) {
989 error_report("unrecognised bluetooth vlan Id");
990 return 0;
991 }
992 }
993
994 vlan = qemu_find_bt_vlan(vlan_id);
995
996 if (!vlan->slave)
997 warn_report("adding a slave device to an empty scatternet %i",
998 vlan_id);
999
1000 if (!strcmp(devname, "keyboard"))
1001 return bt_keyboard_init(vlan);
1002
1003 error_report("unsupported bluetooth device '%s'", devname);
1004 return 0;
1005 }
1006
1007 static int bt_parse(const char *opt)
1008 {
1009 const char *endp, *p;
1010 int vlan;
1011
1012 if (strstart(opt, "hci", &endp)) {
1013 if (!*endp || *endp == ',') {
1014 if (*endp)
1015 if (!strstart(endp, ",vlan=", 0))
1016 opt = endp + 1;
1017
1018 return bt_hci_parse(opt);
1019 }
1020 } else if (strstart(opt, "vhci", &endp)) {
1021 if (!*endp || *endp == ',') {
1022 if (*endp) {
1023 if (strstart(endp, ",vlan=", &p)) {
1024 vlan = strtol(p, (char **) &endp, 0);
1025 if (*endp) {
1026 error_report("bad scatternet '%s'", p);
1027 return 1;
1028 }
1029 } else {
1030 error_report("bad parameter '%s'", endp + 1);
1031 return 1;
1032 }
1033 } else
1034 vlan = 0;
1035
1036 bt_vhci_add(vlan);
1037 return 0;
1038 }
1039 } else if (strstart(opt, "device:", &endp))
1040 return !bt_device_add(endp);
1041
1042 error_report("bad bluetooth parameter '%s'", opt);
1043 return 1;
1044 }
1045
1046 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1047 {
1048 if (qemu_opt_get_bool(opts, "enable", false)) {
1049 #ifdef CONFIG_SECCOMP
1050 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1051 | QEMU_SECCOMP_SET_OBSOLETE;
1052 const char *value = NULL;
1053
1054 value = qemu_opt_get(opts, "obsolete");
1055 if (value) {
1056 if (g_str_equal(value, "allow")) {
1057 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1058 } else if (g_str_equal(value, "deny")) {
1059 /* this is the default option, this if is here
1060 * to provide a little bit of consistency for
1061 * the command line */
1062 } else {
1063 error_report("invalid argument for obsolete");
1064 return -1;
1065 }
1066 }
1067
1068 value = qemu_opt_get(opts, "elevateprivileges");
1069 if (value) {
1070 if (g_str_equal(value, "deny")) {
1071 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1072 } else if (g_str_equal(value, "children")) {
1073 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1074
1075 /* calling prctl directly because we're
1076 * not sure if host has CAP_SYS_ADMIN set*/
1077 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1078 error_report("failed to set no_new_privs "
1079 "aborting");
1080 return -1;
1081 }
1082 } else if (g_str_equal(value, "allow")) {
1083 /* default value */
1084 } else {
1085 error_report("invalid argument for elevateprivileges");
1086 return -1;
1087 }
1088 }
1089
1090 value = qemu_opt_get(opts, "spawn");
1091 if (value) {
1092 if (g_str_equal(value, "deny")) {
1093 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1094 } else if (g_str_equal(value, "allow")) {
1095 /* default value */
1096 } else {
1097 error_report("invalid argument for spawn");
1098 return -1;
1099 }
1100 }
1101
1102 value = qemu_opt_get(opts, "resourcecontrol");
1103 if (value) {
1104 if (g_str_equal(value, "deny")) {
1105 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1106 } else if (g_str_equal(value, "allow")) {
1107 /* default value */
1108 } else {
1109 error_report("invalid argument for resourcecontrol");
1110 return -1;
1111 }
1112 }
1113
1114 if (seccomp_start(seccomp_opts) < 0) {
1115 error_report("failed to install seccomp syscall filter "
1116 "in the kernel");
1117 return -1;
1118 }
1119 #else
1120 error_report("seccomp support is disabled");
1121 return -1;
1122 #endif
1123 }
1124
1125 return 0;
1126 }
1127
1128 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1129 {
1130 const char *proc_name;
1131
1132 if (qemu_opt_get(opts, "debug-threads")) {
1133 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1134 }
1135 qemu_name = qemu_opt_get(opts, "guest");
1136
1137 proc_name = qemu_opt_get(opts, "process");
1138 if (proc_name) {
1139 os_set_proc_name(proc_name);
1140 }
1141
1142 return 0;
1143 }
1144
1145 bool defaults_enabled(void)
1146 {
1147 return has_defaults;
1148 }
1149
1150 #ifndef _WIN32
1151 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1152 {
1153 int fd, dupfd, flags;
1154 int64_t fdset_id;
1155 const char *fd_opaque = NULL;
1156 AddfdInfo *fdinfo;
1157
1158 fd = qemu_opt_get_number(opts, "fd", -1);
1159 fdset_id = qemu_opt_get_number(opts, "set", -1);
1160 fd_opaque = qemu_opt_get(opts, "opaque");
1161
1162 if (fd < 0) {
1163 error_report("fd option is required and must be non-negative");
1164 return -1;
1165 }
1166
1167 if (fd <= STDERR_FILENO) {
1168 error_report("fd cannot be a standard I/O stream");
1169 return -1;
1170 }
1171
1172 /*
1173 * All fds inherited across exec() necessarily have FD_CLOEXEC
1174 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1175 */
1176 flags = fcntl(fd, F_GETFD);
1177 if (flags == -1 || (flags & FD_CLOEXEC)) {
1178 error_report("fd is not valid or already in use");
1179 return -1;
1180 }
1181
1182 if (fdset_id < 0) {
1183 error_report("set option is required and must be non-negative");
1184 return -1;
1185 }
1186
1187 #ifdef F_DUPFD_CLOEXEC
1188 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1189 #else
1190 dupfd = dup(fd);
1191 if (dupfd != -1) {
1192 qemu_set_cloexec(dupfd);
1193 }
1194 #endif
1195 if (dupfd == -1) {
1196 error_report("error duplicating fd: %s", strerror(errno));
1197 return -1;
1198 }
1199
1200 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1201 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1202 &error_abort);
1203 g_free(fdinfo);
1204
1205 return 0;
1206 }
1207
1208 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1209 {
1210 int fd;
1211
1212 fd = qemu_opt_get_number(opts, "fd", -1);
1213 close(fd);
1214
1215 return 0;
1216 }
1217 #endif
1218
1219 /***********************************************************/
1220 /* QEMU Block devices */
1221
1222 #define HD_OPTS "media=disk"
1223 #define CDROM_OPTS "media=cdrom"
1224 #define FD_OPTS ""
1225 #define PFLASH_OPTS ""
1226 #define MTD_OPTS ""
1227 #define SD_OPTS ""
1228
1229 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1230 {
1231 BlockInterfaceType *block_default_type = opaque;
1232
1233 return drive_new(opts, *block_default_type) == NULL;
1234 }
1235
1236 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1237 {
1238 if (qemu_opt_get(opts, "snapshot") == NULL) {
1239 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1240 }
1241 return 0;
1242 }
1243
1244 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1245 int index, const char *optstr)
1246 {
1247 QemuOpts *opts;
1248 DriveInfo *dinfo;
1249
1250 if (!enable || drive_get_by_index(type, index)) {
1251 return;
1252 }
1253
1254 opts = drive_add(type, index, NULL, optstr);
1255 if (snapshot) {
1256 drive_enable_snapshot(NULL, opts, NULL);
1257 }
1258
1259 dinfo = drive_new(opts, type);
1260 if (!dinfo) {
1261 exit(1);
1262 }
1263 dinfo->is_default = true;
1264
1265 }
1266
1267 static QemuOptsList qemu_smp_opts = {
1268 .name = "smp-opts",
1269 .implied_opt_name = "cpus",
1270 .merge_lists = true,
1271 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1272 .desc = {
1273 {
1274 .name = "cpus",
1275 .type = QEMU_OPT_NUMBER,
1276 }, {
1277 .name = "sockets",
1278 .type = QEMU_OPT_NUMBER,
1279 }, {
1280 .name = "cores",
1281 .type = QEMU_OPT_NUMBER,
1282 }, {
1283 .name = "threads",
1284 .type = QEMU_OPT_NUMBER,
1285 }, {
1286 .name = "maxcpus",
1287 .type = QEMU_OPT_NUMBER,
1288 },
1289 { /*End of list */ }
1290 },
1291 };
1292
1293 static void smp_parse(QemuOpts *opts)
1294 {
1295 if (opts) {
1296 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1297 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1298 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1299 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1300
1301 /* compute missing values, prefer sockets over cores over threads */
1302 if (cpus == 0 || sockets == 0) {
1303 sockets = sockets > 0 ? sockets : 1;
1304 cores = cores > 0 ? cores : 1;
1305 threads = threads > 0 ? threads : 1;
1306 if (cpus == 0) {
1307 cpus = cores * threads * sockets;
1308 }
1309 } else if (cores == 0) {
1310 threads = threads > 0 ? threads : 1;
1311 cores = cpus / (sockets * threads);
1312 cores = cores > 0 ? cores : 1;
1313 } else if (threads == 0) {
1314 threads = cpus / (cores * sockets);
1315 threads = threads > 0 ? threads : 1;
1316 } else if (sockets * cores * threads < cpus) {
1317 error_report("cpu topology: "
1318 "sockets (%u) * cores (%u) * threads (%u) < "
1319 "smp_cpus (%u)",
1320 sockets, cores, threads, cpus);
1321 exit(1);
1322 }
1323
1324 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1325
1326 if (max_cpus < cpus) {
1327 error_report("maxcpus must be equal to or greater than smp");
1328 exit(1);
1329 }
1330
1331 if (sockets * cores * threads > max_cpus) {
1332 error_report("cpu topology: "
1333 "sockets (%u) * cores (%u) * threads (%u) > "
1334 "maxcpus (%u)",
1335 sockets, cores, threads, max_cpus);
1336 exit(1);
1337 }
1338
1339 smp_cpus = cpus;
1340 smp_cores = cores;
1341 smp_threads = threads;
1342 }
1343
1344 if (smp_cpus > 1) {
1345 Error *blocker = NULL;
1346 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1347 replay_add_blocker(blocker);
1348 }
1349 }
1350
1351 static void realtime_init(void)
1352 {
1353 if (enable_mlock) {
1354 if (os_mlock() < 0) {
1355 error_report("locking memory failed");
1356 exit(1);
1357 }
1358 }
1359 }
1360
1361
1362 static void configure_msg(QemuOpts *opts)
1363 {
1364 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1365 }
1366
1367 /***********************************************************/
1368 /* Semihosting */
1369
1370 typedef struct SemihostingConfig {
1371 bool enabled;
1372 SemihostingTarget target;
1373 const char **argv;
1374 int argc;
1375 const char *cmdline; /* concatenated argv */
1376 } SemihostingConfig;
1377
1378 static SemihostingConfig semihosting;
1379
1380 bool semihosting_enabled(void)
1381 {
1382 return semihosting.enabled;
1383 }
1384
1385 SemihostingTarget semihosting_get_target(void)
1386 {
1387 return semihosting.target;
1388 }
1389
1390 const char *semihosting_get_arg(int i)
1391 {
1392 if (i >= semihosting.argc) {
1393 return NULL;
1394 }
1395 return semihosting.argv[i];
1396 }
1397
1398 int semihosting_get_argc(void)
1399 {
1400 return semihosting.argc;
1401 }
1402
1403 const char *semihosting_get_cmdline(void)
1404 {
1405 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1406 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1407 }
1408 return semihosting.cmdline;
1409 }
1410
1411 static int add_semihosting_arg(void *opaque,
1412 const char *name, const char *val,
1413 Error **errp)
1414 {
1415 SemihostingConfig *s = opaque;
1416 if (strcmp(name, "arg") == 0) {
1417 s->argc++;
1418 /* one extra element as g_strjoinv() expects NULL-terminated array */
1419 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1420 s->argv[s->argc - 1] = val;
1421 s->argv[s->argc] = NULL;
1422 }
1423 return 0;
1424 }
1425
1426 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1427 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1428 {
1429 char *cmd_token;
1430
1431 /* argv[0] */
1432 add_semihosting_arg(&semihosting, "arg", file, NULL);
1433
1434 /* split -append and initialize argv[1..n] */
1435 cmd_token = strtok(g_strdup(cmd), " ");
1436 while (cmd_token) {
1437 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1438 cmd_token = strtok(NULL, " ");
1439 }
1440 }
1441
1442 /* Now we still need this for compatibility with XEN. */
1443 bool has_igd_gfx_passthru;
1444 static void igd_gfx_passthru(void)
1445 {
1446 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1447 }
1448
1449 /***********************************************************/
1450 /* USB devices */
1451
1452 static int usb_device_add(const char *devname)
1453 {
1454 USBDevice *dev = NULL;
1455 #ifndef CONFIG_LINUX
1456 const char *p;
1457 #endif
1458
1459 if (!machine_usb(current_machine)) {
1460 return -1;
1461 }
1462
1463 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1464 dev = usbdevice_create(devname);
1465 if (dev)
1466 goto done;
1467
1468 /* the other ones */
1469 #ifndef CONFIG_LINUX
1470 /* only the linux version is qdev-ified, usb-bsd still needs this */
1471 if (strstart(devname, "host:", &p)) {
1472 dev = usb_host_device_open(usb_bus_find(-1), p);
1473 }
1474 #endif
1475 if (!dev)
1476 return -1;
1477
1478 done:
1479 return 0;
1480 }
1481
1482 static int usb_device_del(const char *devname)
1483 {
1484 int bus_num, addr;
1485 const char *p;
1486
1487 if (strstart(devname, "host:", &p)) {
1488 return -1;
1489 }
1490
1491 if (!machine_usb(current_machine)) {
1492 return -1;
1493 }
1494
1495 p = strchr(devname, '.');
1496 if (!p)
1497 return -1;
1498 bus_num = strtoul(devname, NULL, 0);
1499 addr = strtoul(p + 1, NULL, 0);
1500
1501 return usb_device_delete_addr(bus_num, addr);
1502 }
1503
1504 static int usb_parse(const char *cmdline)
1505 {
1506 int r;
1507 r = usb_device_add(cmdline);
1508 if (r < 0) {
1509 error_report("could not add USB device '%s'", cmdline);
1510 }
1511 return r;
1512 }
1513
1514 void hmp_usb_add(Monitor *mon, const QDict *qdict)
1515 {
1516 const char *devname = qdict_get_str(qdict, "devname");
1517
1518 error_report("usb_add is deprecated, please use device_add instead");
1519
1520 if (usb_device_add(devname) < 0) {
1521 error_report("could not add USB device '%s'", devname);
1522 }
1523 }
1524
1525 void hmp_usb_del(Monitor *mon, const QDict *qdict)
1526 {
1527 const char *devname = qdict_get_str(qdict, "devname");
1528
1529 error_report("usb_del is deprecated, please use device_del instead");
1530
1531 if (usb_device_del(devname) < 0) {
1532 error_report("could not delete USB device '%s'", devname);
1533 }
1534 }
1535
1536 /***********************************************************/
1537 /* machine registration */
1538
1539 MachineState *current_machine;
1540
1541 static MachineClass *find_machine(const char *name)
1542 {
1543 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1544 MachineClass *mc = NULL;
1545
1546 for (el = machines; el; el = el->next) {
1547 MachineClass *temp = el->data;
1548
1549 if (!strcmp(temp->name, name)) {
1550 mc = temp;
1551 break;
1552 }
1553 if (temp->alias &&
1554 !strcmp(temp->alias, name)) {
1555 mc = temp;
1556 break;
1557 }
1558 }
1559
1560 g_slist_free(machines);
1561 return mc;
1562 }
1563
1564 MachineClass *find_default_machine(void)
1565 {
1566 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1567 MachineClass *mc = NULL;
1568
1569 for (el = machines; el; el = el->next) {
1570 MachineClass *temp = el->data;
1571
1572 if (temp->is_default) {
1573 mc = temp;
1574 break;
1575 }
1576 }
1577
1578 g_slist_free(machines);
1579 return mc;
1580 }
1581
1582 MachineInfoList *qmp_query_machines(Error **errp)
1583 {
1584 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1585 MachineInfoList *mach_list = NULL;
1586
1587 for (el = machines; el; el = el->next) {
1588 MachineClass *mc = el->data;
1589 MachineInfoList *entry;
1590 MachineInfo *info;
1591
1592 info = g_malloc0(sizeof(*info));
1593 if (mc->is_default) {
1594 info->has_is_default = true;
1595 info->is_default = true;
1596 }
1597
1598 if (mc->alias) {
1599 info->has_alias = true;
1600 info->alias = g_strdup(mc->alias);
1601 }
1602
1603 info->name = g_strdup(mc->name);
1604 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1605 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1606
1607 entry = g_malloc0(sizeof(*entry));
1608 entry->value = info;
1609 entry->next = mach_list;
1610 mach_list = entry;
1611 }
1612
1613 g_slist_free(machines);
1614 return mach_list;
1615 }
1616
1617 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1618 {
1619 ObjectProperty *prop;
1620 ObjectPropertyIterator iter;
1621
1622 if (!qemu_opt_has_help_opt(opts)) {
1623 return 0;
1624 }
1625
1626 object_property_iter_init(&iter, OBJECT(machine));
1627 while ((prop = object_property_iter_next(&iter))) {
1628 if (!prop->set) {
1629 continue;
1630 }
1631
1632 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1633 prop->name, prop->type);
1634 if (prop->description) {
1635 error_printf(" (%s)\n", prop->description);
1636 } else {
1637 error_printf("\n");
1638 }
1639 }
1640
1641 return 1;
1642 }
1643
1644 /***********************************************************/
1645 /* main execution loop */
1646
1647 struct vm_change_state_entry {
1648 VMChangeStateHandler *cb;
1649 void *opaque;
1650 QLIST_ENTRY (vm_change_state_entry) entries;
1651 };
1652
1653 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1654
1655 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1656 void *opaque)
1657 {
1658 VMChangeStateEntry *e;
1659
1660 e = g_malloc0(sizeof (*e));
1661
1662 e->cb = cb;
1663 e->opaque = opaque;
1664 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1665 return e;
1666 }
1667
1668 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1669 {
1670 QLIST_REMOVE (e, entries);
1671 g_free (e);
1672 }
1673
1674 void vm_state_notify(int running, RunState state)
1675 {
1676 VMChangeStateEntry *e, *next;
1677
1678 trace_vm_state_notify(running, state);
1679
1680 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1681 e->cb(e->opaque, running, state);
1682 }
1683 }
1684
1685 static ShutdownCause reset_requested;
1686 static ShutdownCause shutdown_requested;
1687 static int shutdown_signal;
1688 static pid_t shutdown_pid;
1689 static int powerdown_requested;
1690 static int debug_requested;
1691 static int suspend_requested;
1692 static WakeupReason wakeup_reason;
1693 static NotifierList powerdown_notifiers =
1694 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1695 static NotifierList suspend_notifiers =
1696 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1697 static NotifierList wakeup_notifiers =
1698 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1699 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1700
1701 ShutdownCause qemu_shutdown_requested_get(void)
1702 {
1703 return shutdown_requested;
1704 }
1705
1706 ShutdownCause qemu_reset_requested_get(void)
1707 {
1708 return reset_requested;
1709 }
1710
1711 static int qemu_shutdown_requested(void)
1712 {
1713 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1714 }
1715
1716 static void qemu_kill_report(void)
1717 {
1718 if (!qtest_driver() && shutdown_signal) {
1719 if (shutdown_pid == 0) {
1720 /* This happens for eg ^C at the terminal, so it's worth
1721 * avoiding printing an odd message in that case.
1722 */
1723 error_report("terminating on signal %d", shutdown_signal);
1724 } else {
1725 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1726
1727 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1728 shutdown_signal, shutdown_pid,
1729 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1730 g_free(shutdown_cmd);
1731 }
1732 shutdown_signal = 0;
1733 }
1734 }
1735
1736 static ShutdownCause qemu_reset_requested(void)
1737 {
1738 ShutdownCause r = reset_requested;
1739
1740 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1741 reset_requested = SHUTDOWN_CAUSE_NONE;
1742 return r;
1743 }
1744 return SHUTDOWN_CAUSE_NONE;
1745 }
1746
1747 static int qemu_suspend_requested(void)
1748 {
1749 int r = suspend_requested;
1750 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1751 suspend_requested = 0;
1752 return r;
1753 }
1754 return false;
1755 }
1756
1757 static WakeupReason qemu_wakeup_requested(void)
1758 {
1759 return wakeup_reason;
1760 }
1761
1762 static int qemu_powerdown_requested(void)
1763 {
1764 int r = powerdown_requested;
1765 powerdown_requested = 0;
1766 return r;
1767 }
1768
1769 static int qemu_debug_requested(void)
1770 {
1771 int r = debug_requested;
1772 debug_requested = 0;
1773 return r;
1774 }
1775
1776 /*
1777 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1778 */
1779 void qemu_system_reset(ShutdownCause reason)
1780 {
1781 MachineClass *mc;
1782
1783 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1784
1785 cpu_synchronize_all_states();
1786
1787 if (mc && mc->reset) {
1788 mc->reset();
1789 } else {
1790 qemu_devices_reset();
1791 }
1792 if (reason) {
1793 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1794 &error_abort);
1795 }
1796 cpu_synchronize_all_post_reset();
1797 }
1798
1799 void qemu_system_guest_panicked(GuestPanicInformation *info)
1800 {
1801 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed\n");
1802
1803 if (current_cpu) {
1804 current_cpu->crash_occurred = true;
1805 }
1806 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1807 !!info, info, &error_abort);
1808 vm_stop(RUN_STATE_GUEST_PANICKED);
1809 if (!no_shutdown) {
1810 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1811 !!info, info, &error_abort);
1812 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1813 }
1814
1815 if (info) {
1816 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1817 qemu_log_mask(LOG_GUEST_ERROR, "HV crash parameters: (%#"PRIx64
1818 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1819 info->u.hyper_v.arg1,
1820 info->u.hyper_v.arg2,
1821 info->u.hyper_v.arg3,
1822 info->u.hyper_v.arg4,
1823 info->u.hyper_v.arg5);
1824 }
1825 qapi_free_GuestPanicInformation(info);
1826 }
1827 }
1828
1829 void qemu_system_reset_request(ShutdownCause reason)
1830 {
1831 if (no_reboot) {
1832 shutdown_requested = reason;
1833 } else {
1834 reset_requested = reason;
1835 }
1836 cpu_stop_current();
1837 qemu_notify_event();
1838 }
1839
1840 static void qemu_system_suspend(void)
1841 {
1842 pause_all_vcpus();
1843 notifier_list_notify(&suspend_notifiers, NULL);
1844 runstate_set(RUN_STATE_SUSPENDED);
1845 qapi_event_send_suspend(&error_abort);
1846 }
1847
1848 void qemu_system_suspend_request(void)
1849 {
1850 if (runstate_check(RUN_STATE_SUSPENDED)) {
1851 return;
1852 }
1853 suspend_requested = 1;
1854 cpu_stop_current();
1855 qemu_notify_event();
1856 }
1857
1858 void qemu_register_suspend_notifier(Notifier *notifier)
1859 {
1860 notifier_list_add(&suspend_notifiers, notifier);
1861 }
1862
1863 void qemu_system_wakeup_request(WakeupReason reason)
1864 {
1865 trace_system_wakeup_request(reason);
1866
1867 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1868 return;
1869 }
1870 if (!(wakeup_reason_mask & (1 << reason))) {
1871 return;
1872 }
1873 runstate_set(RUN_STATE_RUNNING);
1874 wakeup_reason = reason;
1875 qemu_notify_event();
1876 }
1877
1878 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1879 {
1880 if (enabled) {
1881 wakeup_reason_mask |= (1 << reason);
1882 } else {
1883 wakeup_reason_mask &= ~(1 << reason);
1884 }
1885 }
1886
1887 void qemu_register_wakeup_notifier(Notifier *notifier)
1888 {
1889 notifier_list_add(&wakeup_notifiers, notifier);
1890 }
1891
1892 void qemu_system_killed(int signal, pid_t pid)
1893 {
1894 shutdown_signal = signal;
1895 shutdown_pid = pid;
1896 no_shutdown = 0;
1897
1898 /* Cannot call qemu_system_shutdown_request directly because
1899 * we are in a signal handler.
1900 */
1901 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1902 qemu_notify_event();
1903 }
1904
1905 void qemu_system_shutdown_request(ShutdownCause reason)
1906 {
1907 trace_qemu_system_shutdown_request(reason);
1908 replay_shutdown_request(reason);
1909 shutdown_requested = reason;
1910 qemu_notify_event();
1911 }
1912
1913 static void qemu_system_powerdown(void)
1914 {
1915 qapi_event_send_powerdown(&error_abort);
1916 notifier_list_notify(&powerdown_notifiers, NULL);
1917 }
1918
1919 void qemu_system_powerdown_request(void)
1920 {
1921 trace_qemu_system_powerdown_request();
1922 powerdown_requested = 1;
1923 qemu_notify_event();
1924 }
1925
1926 void qemu_register_powerdown_notifier(Notifier *notifier)
1927 {
1928 notifier_list_add(&powerdown_notifiers, notifier);
1929 }
1930
1931 void qemu_system_debug_request(void)
1932 {
1933 debug_requested = 1;
1934 qemu_notify_event();
1935 }
1936
1937 static bool main_loop_should_exit(void)
1938 {
1939 RunState r;
1940 ShutdownCause request;
1941
1942 if (qemu_debug_requested()) {
1943 vm_stop(RUN_STATE_DEBUG);
1944 }
1945 if (qemu_suspend_requested()) {
1946 qemu_system_suspend();
1947 }
1948 request = qemu_shutdown_requested();
1949 if (request) {
1950 qemu_kill_report();
1951 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1952 &error_abort);
1953 if (no_shutdown) {
1954 vm_stop(RUN_STATE_SHUTDOWN);
1955 } else {
1956 return true;
1957 }
1958 }
1959 request = qemu_reset_requested();
1960 if (request) {
1961 pause_all_vcpus();
1962 qemu_system_reset(request);
1963 resume_all_vcpus();
1964 if (!runstate_check(RUN_STATE_RUNNING) &&
1965 !runstate_check(RUN_STATE_INMIGRATE)) {
1966 runstate_set(RUN_STATE_PRELAUNCH);
1967 }
1968 }
1969 if (qemu_wakeup_requested()) {
1970 pause_all_vcpus();
1971 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1972 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1973 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1974 resume_all_vcpus();
1975 qapi_event_send_wakeup(&error_abort);
1976 }
1977 if (qemu_powerdown_requested()) {
1978 qemu_system_powerdown();
1979 }
1980 if (qemu_vmstop_requested(&r)) {
1981 vm_stop(r);
1982 }
1983 return false;
1984 }
1985
1986 static void main_loop(void)
1987 {
1988 #ifdef CONFIG_PROFILER
1989 int64_t ti;
1990 #endif
1991 do {
1992 #ifdef CONFIG_PROFILER
1993 ti = profile_getclock();
1994 #endif
1995 main_loop_wait(false);
1996 #ifdef CONFIG_PROFILER
1997 dev_time += profile_getclock() - ti;
1998 #endif
1999 } while (!main_loop_should_exit());
2000 }
2001
2002 static void version(void)
2003 {
2004 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
2005 QEMU_COPYRIGHT "\n");
2006 }
2007
2008 static void help(int exitcode)
2009 {
2010 version();
2011 printf("usage: %s [options] [disk_image]\n\n"
2012 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
2013 error_get_progname());
2014
2015 #define QEMU_OPTIONS_GENERATE_HELP
2016 #include "qemu-options-wrapper.h"
2017
2018 printf("\nDuring emulation, the following keys are useful:\n"
2019 "ctrl-alt-f toggle full screen\n"
2020 "ctrl-alt-n switch to virtual console 'n'\n"
2021 "ctrl-alt toggle mouse and keyboard grab\n"
2022 "\n"
2023 "When using -nographic, press 'ctrl-a h' to get some help.\n"
2024 "\n"
2025 QEMU_HELP_BOTTOM "\n");
2026
2027 exit(exitcode);
2028 }
2029
2030 #define HAS_ARG 0x0001
2031
2032 typedef struct QEMUOption {
2033 const char *name;
2034 int flags;
2035 int index;
2036 uint32_t arch_mask;
2037 } QEMUOption;
2038
2039 static const QEMUOption qemu_options[] = {
2040 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2041 #define QEMU_OPTIONS_GENERATE_OPTIONS
2042 #include "qemu-options-wrapper.h"
2043 { NULL },
2044 };
2045
2046 typedef struct VGAInterfaceInfo {
2047 const char *opt_name; /* option name */
2048 const char *name; /* human-readable name */
2049 /* Class names indicating that support is available.
2050 * If no class is specified, the interface is always available */
2051 const char *class_names[2];
2052 } VGAInterfaceInfo;
2053
2054 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2055 [VGA_NONE] = {
2056 .opt_name = "none",
2057 },
2058 [VGA_STD] = {
2059 .opt_name = "std",
2060 .name = "standard VGA",
2061 .class_names = { "VGA", "isa-vga" },
2062 },
2063 [VGA_CIRRUS] = {
2064 .opt_name = "cirrus",
2065 .name = "Cirrus VGA",
2066 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2067 },
2068 [VGA_VMWARE] = {
2069 .opt_name = "vmware",
2070 .name = "VMWare SVGA",
2071 .class_names = { "vmware-svga" },
2072 },
2073 [VGA_VIRTIO] = {
2074 .opt_name = "virtio",
2075 .name = "Virtio VGA",
2076 .class_names = { "virtio-vga" },
2077 },
2078 [VGA_QXL] = {
2079 .opt_name = "qxl",
2080 .name = "QXL VGA",
2081 .class_names = { "qxl-vga" },
2082 },
2083 [VGA_TCX] = {
2084 .opt_name = "tcx",
2085 .name = "TCX framebuffer",
2086 .class_names = { "SUNW,tcx" },
2087 },
2088 [VGA_CG3] = {
2089 .opt_name = "cg3",
2090 .name = "CG3 framebuffer",
2091 .class_names = { "cgthree" },
2092 },
2093 [VGA_XENFB] = {
2094 .opt_name = "xenfb",
2095 },
2096 };
2097
2098 static bool vga_interface_available(VGAInterfaceType t)
2099 {
2100 VGAInterfaceInfo *ti = &vga_interfaces[t];
2101
2102 assert(t < VGA_TYPE_MAX);
2103 return !ti->class_names[0] ||
2104 object_class_by_name(ti->class_names[0]) ||
2105 object_class_by_name(ti->class_names[1]);
2106 }
2107
2108 static void select_vgahw(const char *p)
2109 {
2110 const char *opts;
2111 int t;
2112
2113 assert(vga_interface_type == VGA_NONE);
2114 for (t = 0; t < VGA_TYPE_MAX; t++) {
2115 VGAInterfaceInfo *ti = &vga_interfaces[t];
2116 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2117 if (!vga_interface_available(t)) {
2118 error_report("%s not available", ti->name);
2119 exit(1);
2120 }
2121 vga_interface_type = t;
2122 break;
2123 }
2124 }
2125 if (t == VGA_TYPE_MAX) {
2126 invalid_vga:
2127 error_report("unknown vga type: %s", p);
2128 exit(1);
2129 }
2130 while (*opts) {
2131 const char *nextopt;
2132
2133 if (strstart(opts, ",retrace=", &nextopt)) {
2134 opts = nextopt;
2135 if (strstart(opts, "dumb", &nextopt))
2136 vga_retrace_method = VGA_RETRACE_DUMB;
2137 else if (strstart(opts, "precise", &nextopt))
2138 vga_retrace_method = VGA_RETRACE_PRECISE;
2139 else goto invalid_vga;
2140 } else goto invalid_vga;
2141 opts = nextopt;
2142 }
2143 }
2144
2145 typedef enum DisplayType {
2146 DT_DEFAULT,
2147 DT_CURSES,
2148 DT_SDL,
2149 DT_COCOA,
2150 DT_GTK,
2151 DT_EGL,
2152 DT_NONE,
2153 } DisplayType;
2154
2155 static DisplayType select_display(const char *p)
2156 {
2157 const char *opts;
2158 DisplayType display = DT_DEFAULT;
2159
2160 if (strstart(p, "sdl", &opts)) {
2161 #ifdef CONFIG_SDL
2162 display = DT_SDL;
2163 while (*opts) {
2164 const char *nextopt;
2165
2166 if (strstart(opts, ",frame=", &nextopt)) {
2167 opts = nextopt;
2168 if (strstart(opts, "on", &nextopt)) {
2169 no_frame = 0;
2170 } else if (strstart(opts, "off", &nextopt)) {
2171 no_frame = 1;
2172 } else {
2173 goto invalid_sdl_args;
2174 }
2175 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2176 opts = nextopt;
2177 if (strstart(opts, "on", &nextopt)) {
2178 alt_grab = 1;
2179 } else if (strstart(opts, "off", &nextopt)) {
2180 alt_grab = 0;
2181 } else {
2182 goto invalid_sdl_args;
2183 }
2184 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2185 opts = nextopt;
2186 if (strstart(opts, "on", &nextopt)) {
2187 ctrl_grab = 1;
2188 } else if (strstart(opts, "off", &nextopt)) {
2189 ctrl_grab = 0;
2190 } else {
2191 goto invalid_sdl_args;
2192 }
2193 } else if (strstart(opts, ",window_close=", &nextopt)) {
2194 opts = nextopt;
2195 if (strstart(opts, "on", &nextopt)) {
2196 no_quit = 0;
2197 } else if (strstart(opts, "off", &nextopt)) {
2198 no_quit = 1;
2199 } else {
2200 goto invalid_sdl_args;
2201 }
2202 } else if (strstart(opts, ",gl=", &nextopt)) {
2203 opts = nextopt;
2204 if (strstart(opts, "on", &nextopt)) {
2205 request_opengl = 1;
2206 } else if (strstart(opts, "off", &nextopt)) {
2207 request_opengl = 0;
2208 } else {
2209 goto invalid_sdl_args;
2210 }
2211 } else {
2212 invalid_sdl_args:
2213 error_report("invalid SDL option string");
2214 exit(1);
2215 }
2216 opts = nextopt;
2217 }
2218 #else
2219 error_report("SDL support is disabled");
2220 exit(1);
2221 #endif
2222 } else if (strstart(p, "vnc", &opts)) {
2223 if (*opts == '=') {
2224 vnc_parse(opts + 1, &error_fatal);
2225 } else {
2226 error_report("VNC requires a display argument vnc=<display>");
2227 exit(1);
2228 }
2229 } else if (strstart(p, "egl-headless", &opts)) {
2230 #ifdef CONFIG_OPENGL_DMABUF
2231 request_opengl = 1;
2232 display_opengl = 1;
2233 display = DT_EGL;
2234 #else
2235 fprintf(stderr, "egl support is disabled\n");
2236 exit(1);
2237 #endif
2238 } else if (strstart(p, "curses", &opts)) {
2239 #ifdef CONFIG_CURSES
2240 display = DT_CURSES;
2241 #else
2242 error_report("curses support is disabled");
2243 exit(1);
2244 #endif
2245 } else if (strstart(p, "gtk", &opts)) {
2246 #ifdef CONFIG_GTK
2247 display = DT_GTK;
2248 while (*opts) {
2249 const char *nextopt;
2250
2251 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2252 opts = nextopt;
2253 if (strstart(opts, "on", &nextopt)) {
2254 grab_on_hover = true;
2255 } else if (strstart(opts, "off", &nextopt)) {
2256 grab_on_hover = false;
2257 } else {
2258 goto invalid_gtk_args;
2259 }
2260 } else if (strstart(opts, ",gl=", &nextopt)) {
2261 opts = nextopt;
2262 if (strstart(opts, "on", &nextopt)) {
2263 request_opengl = 1;
2264 } else if (strstart(opts, "off", &nextopt)) {
2265 request_opengl = 0;
2266 } else {
2267 goto invalid_gtk_args;
2268 }
2269 } else {
2270 invalid_gtk_args:
2271 error_report("invalid GTK option string");
2272 exit(1);
2273 }
2274 opts = nextopt;
2275 }
2276 #else
2277 error_report("GTK support is disabled");
2278 exit(1);
2279 #endif
2280 } else if (strstart(p, "none", &opts)) {
2281 display = DT_NONE;
2282 } else {
2283 error_report("unknown display type");
2284 exit(1);
2285 }
2286
2287 return display;
2288 }
2289
2290 static int balloon_parse(const char *arg)
2291 {
2292 QemuOpts *opts;
2293
2294 if (strcmp(arg, "none") == 0) {
2295 return 0;
2296 }
2297
2298 if (!strncmp(arg, "virtio", 6)) {
2299 if (arg[6] == ',') {
2300 /* have params -> parse them */
2301 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2302 false);
2303 if (!opts)
2304 return -1;
2305 } else {
2306 /* create empty opts */
2307 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2308 &error_abort);
2309 }
2310 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2311 return 0;
2312 }
2313
2314 return -1;
2315 }
2316
2317 char *qemu_find_file(int type, const char *name)
2318 {
2319 int i;
2320 const char *subdir;
2321 char *buf;
2322
2323 /* Try the name as a straight path first */
2324 if (access(name, R_OK) == 0) {
2325 trace_load_file(name, name);
2326 return g_strdup(name);
2327 }
2328
2329 switch (type) {
2330 case QEMU_FILE_TYPE_BIOS:
2331 subdir = "";
2332 break;
2333 case QEMU_FILE_TYPE_KEYMAP:
2334 subdir = "keymaps/";
2335 break;
2336 default:
2337 abort();
2338 }
2339
2340 for (i = 0; i < data_dir_idx; i++) {
2341 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2342 if (access(buf, R_OK) == 0) {
2343 trace_load_file(name, buf);
2344 return buf;
2345 }
2346 g_free(buf);
2347 }
2348 return NULL;
2349 }
2350
2351 static void qemu_add_data_dir(const char *path)
2352 {
2353 int i;
2354
2355 if (path == NULL) {
2356 return;
2357 }
2358 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2359 return;
2360 }
2361 for (i = 0; i < data_dir_idx; i++) {
2362 if (strcmp(data_dir[i], path) == 0) {
2363 return; /* duplicate */
2364 }
2365 }
2366 data_dir[data_dir_idx++] = path;
2367 }
2368
2369 static inline bool nonempty_str(const char *str)
2370 {
2371 return str && *str;
2372 }
2373
2374 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2375 {
2376 gchar *buf;
2377 size_t size;
2378 const char *name, *file, *str;
2379 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2380
2381 if (fw_cfg == NULL) {
2382 error_report("fw_cfg device not available");
2383 return -1;
2384 }
2385 name = qemu_opt_get(opts, "name");
2386 file = qemu_opt_get(opts, "file");
2387 str = qemu_opt_get(opts, "string");
2388
2389 /* we need name and either a file or the content string */
2390 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2391 error_report("invalid argument(s)");
2392 return -1;
2393 }
2394 if (nonempty_str(file) && nonempty_str(str)) {
2395 error_report("file and string are mutually exclusive");
2396 return -1;
2397 }
2398 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2399 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2400 return -1;
2401 }
2402 if (strncmp(name, "opt/", 4) != 0) {
2403 warn_report("externally provided fw_cfg item names "
2404 "should be prefixed with \"opt/\"");
2405 }
2406 if (nonempty_str(str)) {
2407 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2408 buf = g_memdup(str, size);
2409 } else {
2410 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2411 error_report("can't load %s", file);
2412 return -1;
2413 }
2414 }
2415 /* For legacy, keep user files in a specific global order. */
2416 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2417 fw_cfg_add_file(fw_cfg, name, buf, size);
2418 fw_cfg_reset_order_override(fw_cfg);
2419 return 0;
2420 }
2421
2422 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2423 {
2424 return qdev_device_help(opts);
2425 }
2426
2427 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2428 {
2429 Error *err = NULL;
2430 DeviceState *dev;
2431
2432 dev = qdev_device_add(opts, &err);
2433 if (!dev) {
2434 error_report_err(err);
2435 return -1;
2436 }
2437 object_unref(OBJECT(dev));
2438 return 0;
2439 }
2440
2441 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2442 {
2443 Error *local_err = NULL;
2444
2445 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2446 if (local_err) {
2447 error_report_err(local_err);
2448 return -1;
2449 }
2450 exit(0);
2451 }
2452 return 0;
2453 }
2454
2455 #ifdef CONFIG_VIRTFS
2456 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2457 {
2458 return qemu_fsdev_add(opts);
2459 }
2460 #endif
2461
2462 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2463 {
2464 Chardev *chr;
2465 const char *chardev;
2466 const char *mode;
2467 int flags;
2468
2469 mode = qemu_opt_get(opts, "mode");
2470 if (mode == NULL) {
2471 mode = "readline";
2472 }
2473 if (strcmp(mode, "readline") == 0) {
2474 flags = MONITOR_USE_READLINE;
2475 } else if (strcmp(mode, "control") == 0) {
2476 flags = MONITOR_USE_CONTROL;
2477 } else {
2478 error_report("unknown monitor mode \"%s\"", mode);
2479 exit(1);
2480 }
2481
2482 if (qemu_opt_get_bool(opts, "pretty", 0))
2483 flags |= MONITOR_USE_PRETTY;
2484
2485 if (qemu_opt_get_bool(opts, "default", 0)) {
2486 error_report("option 'default' does nothing and is deprecated");
2487 }
2488
2489 chardev = qemu_opt_get(opts, "chardev");
2490 chr = qemu_chr_find(chardev);
2491 if (chr == NULL) {
2492 error_report("chardev \"%s\" not found", chardev);
2493 exit(1);
2494 }
2495
2496 monitor_init(chr, flags);
2497 return 0;
2498 }
2499
2500 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2501 {
2502 static int monitor_device_index = 0;
2503 QemuOpts *opts;
2504 const char *p;
2505 char label[32];
2506
2507 if (strstart(optarg, "chardev:", &p)) {
2508 snprintf(label, sizeof(label), "%s", p);
2509 } else {
2510 snprintf(label, sizeof(label), "compat_monitor%d",
2511 monitor_device_index);
2512 opts = qemu_chr_parse_compat(label, optarg);
2513 if (!opts) {
2514 error_report("parse error: %s", optarg);
2515 exit(1);
2516 }
2517 }
2518
2519 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2520 qemu_opt_set(opts, "mode", mode, &error_abort);
2521 qemu_opt_set(opts, "chardev", label, &error_abort);
2522 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2523 monitor_device_index++;
2524 }
2525
2526 struct device_config {
2527 enum {
2528 DEV_USB, /* -usbdevice */
2529 DEV_BT, /* -bt */
2530 DEV_SERIAL, /* -serial */
2531 DEV_PARALLEL, /* -parallel */
2532 DEV_VIRTCON, /* -virtioconsole */
2533 DEV_DEBUGCON, /* -debugcon */
2534 DEV_GDB, /* -gdb, -s */
2535 DEV_SCLP, /* s390 sclp */
2536 } type;
2537 const char *cmdline;
2538 Location loc;
2539 QTAILQ_ENTRY(device_config) next;
2540 };
2541
2542 static QTAILQ_HEAD(, device_config) device_configs =
2543 QTAILQ_HEAD_INITIALIZER(device_configs);
2544
2545 static void add_device_config(int type, const char *cmdline)
2546 {
2547 struct device_config *conf;
2548
2549 conf = g_malloc0(sizeof(*conf));
2550 conf->type = type;
2551 conf->cmdline = cmdline;
2552 loc_save(&conf->loc);
2553 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2554 }
2555
2556 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2557 {
2558 struct device_config *conf;
2559 int rc;
2560
2561 QTAILQ_FOREACH(conf, &device_configs, next) {
2562 if (conf->type != type)
2563 continue;
2564 loc_push_restore(&conf->loc);
2565 rc = func(conf->cmdline);
2566 loc_pop(&conf->loc);
2567 if (rc) {
2568 return rc;
2569 }
2570 }
2571 return 0;
2572 }
2573
2574 static int serial_parse(const char *devname)
2575 {
2576 static int index = 0;
2577 char label[32];
2578
2579 if (strcmp(devname, "none") == 0)
2580 return 0;
2581 if (index == MAX_SERIAL_PORTS) {
2582 error_report("too many serial ports");
2583 exit(1);
2584 }
2585 snprintf(label, sizeof(label), "serial%d", index);
2586 serial_hds[index] = qemu_chr_new(label, devname);
2587 if (!serial_hds[index]) {
2588 error_report("could not connect serial device"
2589 " to character backend '%s'", devname);
2590 return -1;
2591 }
2592 index++;
2593 return 0;
2594 }
2595
2596 static int parallel_parse(const char *devname)
2597 {
2598 static int index = 0;
2599 char label[32];
2600
2601 if (strcmp(devname, "none") == 0)
2602 return 0;
2603 if (index == MAX_PARALLEL_PORTS) {
2604 error_report("too many parallel ports");
2605 exit(1);
2606 }
2607 snprintf(label, sizeof(label), "parallel%d", index);
2608 parallel_hds[index] = qemu_chr_new(label, devname);
2609 if (!parallel_hds[index]) {
2610 error_report("could not connect parallel device"
2611 " to character backend '%s'", devname);
2612 return -1;
2613 }
2614 index++;
2615 return 0;
2616 }
2617
2618 static int virtcon_parse(const char *devname)
2619 {
2620 QemuOptsList *device = qemu_find_opts("device");
2621 static int index = 0;
2622 char label[32];
2623 QemuOpts *bus_opts, *dev_opts;
2624
2625 if (strcmp(devname, "none") == 0)
2626 return 0;
2627 if (index == MAX_VIRTIO_CONSOLES) {
2628 error_report("too many virtio consoles");
2629 exit(1);
2630 }
2631
2632 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2633 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2634
2635 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2636 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2637
2638 snprintf(label, sizeof(label), "virtcon%d", index);
2639 virtcon_hds[index] = qemu_chr_new(label, devname);
2640 if (!virtcon_hds[index]) {
2641 error_report("could not connect virtio console"
2642 " to character backend '%s'", devname);
2643 return -1;
2644 }
2645 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2646
2647 index++;
2648 return 0;
2649 }
2650
2651 static int sclp_parse(const char *devname)
2652 {
2653 QemuOptsList *device = qemu_find_opts("device");
2654 static int index = 0;
2655 char label[32];
2656 QemuOpts *dev_opts;
2657
2658 if (strcmp(devname, "none") == 0) {
2659 return 0;
2660 }
2661 if (index == MAX_SCLP_CONSOLES) {
2662 error_report("too many sclp consoles");
2663 exit(1);
2664 }
2665
2666 assert(arch_type == QEMU_ARCH_S390X);
2667
2668 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2669 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2670
2671 snprintf(label, sizeof(label), "sclpcon%d", index);
2672 sclp_hds[index] = qemu_chr_new(label, devname);
2673 if (!sclp_hds[index]) {
2674 error_report("could not connect sclp console"
2675 " to character backend '%s'", devname);
2676 return -1;
2677 }
2678 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2679
2680 index++;
2681 return 0;
2682 }
2683
2684 static int debugcon_parse(const char *devname)
2685 {
2686 QemuOpts *opts;
2687
2688 if (!qemu_chr_new("debugcon", devname)) {
2689 exit(1);
2690 }
2691 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2692 if (!opts) {
2693 error_report("already have a debugcon device");
2694 exit(1);
2695 }
2696 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2697 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2698 return 0;
2699 }
2700
2701 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2702 {
2703 const MachineClass *mc1 = a, *mc2 = b;
2704 int res;
2705
2706 if (mc1->family == NULL) {
2707 if (mc2->family == NULL) {
2708 /* Compare standalone machine types against each other; they sort
2709 * in increasing order.
2710 */
2711 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2712 object_class_get_name(OBJECT_CLASS(mc2)));
2713 }
2714
2715 /* Standalone machine types sort after families. */
2716 return 1;
2717 }
2718
2719 if (mc2->family == NULL) {
2720 /* Families sort before standalone machine types. */
2721 return -1;
2722 }
2723
2724 /* Families sort between each other alphabetically increasingly. */
2725 res = strcmp(mc1->family, mc2->family);
2726 if (res != 0) {
2727 return res;
2728 }
2729
2730 /* Within the same family, machine types sort in decreasing order. */
2731 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2732 object_class_get_name(OBJECT_CLASS(mc1)));
2733 }
2734
2735 static MachineClass *machine_parse(const char *name)
2736 {
2737 MachineClass *mc = NULL;
2738 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2739
2740 if (name) {
2741 mc = find_machine(name);
2742 }
2743 if (mc) {
2744 g_slist_free(machines);
2745 return mc;
2746 }
2747 if (name && !is_help_option(name)) {
2748 error_report("unsupported machine type");
2749 error_printf("Use -machine help to list supported machines\n");
2750 } else {
2751 printf("Supported machines are:\n");
2752 machines = g_slist_sort(machines, machine_class_cmp);
2753 for (el = machines; el; el = el->next) {
2754 MachineClass *mc = el->data;
2755 if (mc->alias) {
2756 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2757 }
2758 printf("%-20s %s%s\n", mc->name, mc->desc,
2759 mc->is_default ? " (default)" : "");
2760 }
2761 }
2762
2763 g_slist_free(machines);
2764 exit(!name || !is_help_option(name));
2765 }
2766
2767 void qemu_add_exit_notifier(Notifier *notify)
2768 {
2769 notifier_list_add(&exit_notifiers, notify);
2770 }
2771
2772 void qemu_remove_exit_notifier(Notifier *notify)
2773 {
2774 notifier_remove(notify);
2775 }
2776
2777 static void qemu_run_exit_notifiers(void)
2778 {
2779 notifier_list_notify(&exit_notifiers, NULL);
2780 }
2781
2782 static bool machine_init_done;
2783
2784 void qemu_add_machine_init_done_notifier(Notifier *notify)
2785 {
2786 notifier_list_add(&machine_init_done_notifiers, notify);
2787 if (machine_init_done) {
2788 notify->notify(notify, NULL);
2789 }
2790 }
2791
2792 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2793 {
2794 notifier_remove(notify);
2795 }
2796
2797 static void qemu_run_machine_init_done_notifiers(void)
2798 {
2799 notifier_list_notify(&machine_init_done_notifiers, NULL);
2800 machine_init_done = true;
2801 }
2802
2803 static const QEMUOption *lookup_opt(int argc, char **argv,
2804 const char **poptarg, int *poptind)
2805 {
2806 const QEMUOption *popt;
2807 int optind = *poptind;
2808 char *r = argv[optind];
2809 const char *optarg;
2810
2811 loc_set_cmdline(argv, optind, 1);
2812 optind++;
2813 /* Treat --foo the same as -foo. */
2814 if (r[1] == '-')
2815 r++;
2816 popt = qemu_options;
2817 for(;;) {
2818 if (!popt->name) {
2819 error_report("invalid option");
2820 exit(1);
2821 }
2822 if (!strcmp(popt->name, r + 1))
2823 break;
2824 popt++;
2825 }
2826 if (popt->flags & HAS_ARG) {
2827 if (optind >= argc) {
2828 error_report("requires an argument");
2829 exit(1);
2830 }
2831 optarg = argv[optind++];
2832 loc_set_cmdline(argv, optind - 2, 2);
2833 } else {
2834 optarg = NULL;
2835 }
2836
2837 *poptarg = optarg;
2838 *poptind = optind;
2839
2840 return popt;
2841 }
2842
2843 static MachineClass *select_machine(void)
2844 {
2845 MachineClass *machine_class = find_default_machine();
2846 const char *optarg;
2847 QemuOpts *opts;
2848 Location loc;
2849
2850 loc_push_none(&loc);
2851
2852 opts = qemu_get_machine_opts();
2853 qemu_opts_loc_restore(opts);
2854
2855 optarg = qemu_opt_get(opts, "type");
2856 if (optarg) {
2857 machine_class = machine_parse(optarg);
2858 }
2859
2860 if (!machine_class) {
2861 error_report("No machine specified, and there is no default");
2862 error_printf("Use -machine help to list supported machines\n");
2863 exit(1);
2864 }
2865
2866 loc_pop(&loc);
2867 return machine_class;
2868 }
2869
2870 static int machine_set_property(void *opaque,
2871 const char *name, const char *value,
2872 Error **errp)
2873 {
2874 Object *obj = OBJECT(opaque);
2875 Error *local_err = NULL;
2876 char *p, *qom_name;
2877
2878 if (strcmp(name, "type") == 0) {
2879 return 0;
2880 }
2881
2882 qom_name = g_strdup(name);
2883 for (p = qom_name; *p; p++) {
2884 if (*p == '_') {
2885 *p = '-';
2886 }
2887 }
2888
2889 object_property_parse(obj, value, qom_name, &local_err);
2890 g_free(qom_name);
2891
2892 if (local_err) {
2893 error_report_err(local_err);
2894 return -1;
2895 }
2896
2897 return 0;
2898 }
2899
2900
2901 /*
2902 * Initial object creation happens before all other
2903 * QEMU data types are created. The majority of objects
2904 * can be created at this point. The rng-egd object
2905 * cannot be created here, as it depends on the chardev
2906 * already existing.
2907 */
2908 static bool object_create_initial(const char *type)
2909 {
2910 if (g_str_equal(type, "rng-egd") ||
2911 g_str_has_prefix(type, "pr-manager-")) {
2912 return false;
2913 }
2914
2915 /*
2916 * return false for concrete netfilters since
2917 * they depend on netdevs already existing
2918 */
2919 if (g_str_equal(type, "filter-buffer") ||
2920 g_str_equal(type, "filter-dump") ||
2921 g_str_equal(type, "filter-mirror") ||
2922 g_str_equal(type, "filter-redirector") ||
2923 g_str_equal(type, "colo-compare") ||
2924 g_str_equal(type, "filter-rewriter") ||
2925 g_str_equal(type, "filter-replay")) {
2926 return false;
2927 }
2928
2929 /* Memory allocation by backends needs to be done
2930 * after configure_accelerator() (due to the tcg_enabled()
2931 * checks at memory_region_init_*()).
2932 *
2933 * Also, allocation of large amounts of memory may delay
2934 * chardev initialization for too long, and trigger timeouts
2935 * on software that waits for a monitor socket to be created
2936 * (e.g. libvirt).
2937 */
2938 if (g_str_has_prefix(type, "memory-backend-")) {
2939 return false;
2940 }
2941
2942 return true;
2943 }
2944
2945
2946 /*
2947 * The remainder of object creation happens after the
2948 * creation of chardev, fsdev, net clients and device data types.
2949 */
2950 static bool object_create_delayed(const char *type)
2951 {
2952 return !object_create_initial(type);
2953 }
2954
2955
2956 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2957 MachineClass *mc)
2958 {
2959 uint64_t sz;
2960 const char *mem_str;
2961 const char *maxmem_str, *slots_str;
2962 const ram_addr_t default_ram_size = mc->default_ram_size;
2963 QemuOpts *opts = qemu_find_opts_singleton("memory");
2964 Location loc;
2965
2966 loc_push_none(&loc);
2967 qemu_opts_loc_restore(opts);
2968
2969 sz = 0;
2970 mem_str = qemu_opt_get(opts, "size");
2971 if (mem_str) {
2972 if (!*mem_str) {
2973 error_report("missing 'size' option value");
2974 exit(EXIT_FAILURE);
2975 }
2976
2977 sz = qemu_opt_get_size(opts, "size", ram_size);
2978
2979 /* Fix up legacy suffix-less format */
2980 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2981 uint64_t overflow_check = sz;
2982
2983 sz <<= 20;
2984 if ((sz >> 20) != overflow_check) {
2985 error_report("too large 'size' option value");
2986 exit(EXIT_FAILURE);
2987 }
2988 }
2989 }
2990
2991 /* backward compatibility behaviour for case "-m 0" */
2992 if (sz == 0) {
2993 sz = default_ram_size;
2994 }
2995
2996 sz = QEMU_ALIGN_UP(sz, 8192);
2997 ram_size = sz;
2998 if (ram_size != sz) {
2999 error_report("ram size too large");
3000 exit(EXIT_FAILURE);
3001 }
3002
3003 /* store value for the future use */
3004 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
3005 *maxram_size = ram_size;
3006
3007 maxmem_str = qemu_opt_get(opts, "maxmem");
3008 slots_str = qemu_opt_get(opts, "slots");
3009 if (maxmem_str && slots_str) {
3010 uint64_t slots;
3011
3012 sz = qemu_opt_get_size(opts, "maxmem", 0);
3013 slots = qemu_opt_get_number(opts, "slots", 0);
3014 if (sz < ram_size) {
3015 error_report("invalid value of -m option maxmem: "
3016 "maximum memory size (0x%" PRIx64 ") must be at least "
3017 "the initial memory size (0x" RAM_ADDR_FMT ")",
3018 sz, ram_size);
3019 exit(EXIT_FAILURE);
3020 } else if (sz > ram_size) {
3021 if (!slots) {
3022 error_report("invalid value of -m option: maxmem was "
3023 "specified, but no hotplug slots were specified");
3024 exit(EXIT_FAILURE);
3025 }
3026 } else if (slots) {
3027 error_report("invalid value of -m option maxmem: "
3028 "memory slots were specified but maximum memory size "
3029 "(0x%" PRIx64 ") is equal to the initial memory size "
3030 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
3031 exit(EXIT_FAILURE);
3032 }
3033
3034 *maxram_size = sz;
3035 *ram_slots = slots;
3036 } else if ((!maxmem_str && slots_str) ||
3037 (maxmem_str && !slots_str)) {
3038 error_report("invalid -m option value: missing "
3039 "'%s' option", slots_str ? "maxmem" : "slots");
3040 exit(EXIT_FAILURE);
3041 }
3042
3043 loc_pop(&loc);
3044 }
3045
3046 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
3047 {
3048 GlobalProperty *g;
3049
3050 g = g_malloc0(sizeof(*g));
3051 g->driver = qemu_opt_get(opts, "driver");
3052 g->property = qemu_opt_get(opts, "property");
3053 g->value = qemu_opt_get(opts, "value");
3054 g->user_provided = true;
3055 g->errp = &error_fatal;
3056 qdev_prop_register_global(g);
3057 return 0;
3058 }
3059
3060 static int qemu_read_default_config_file(void)
3061 {
3062 int ret;
3063
3064 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3065 if (ret < 0 && ret != -ENOENT) {
3066 return ret;
3067 }
3068
3069 return 0;
3070 }
3071
3072 static void user_register_global_props(void)
3073 {
3074 qemu_opts_foreach(qemu_find_opts("global"),
3075 global_init_func, NULL, NULL);
3076 }
3077
3078 /*
3079 * Note: we should see that these properties are actually having a
3080 * priority: accel < machine < user. This means e.g. when user
3081 * specifies something in "-global", it'll always be used with highest
3082 * priority than either machine/accelerator compat properties.
3083 */
3084 static void register_global_properties(MachineState *ms)
3085 {
3086 accel_register_compat_props(ms->accelerator);
3087 machine_register_compat_props(ms);
3088 user_register_global_props();
3089 }
3090
3091 int main(int argc, char **argv, char **envp)
3092 {
3093 int i;
3094 int snapshot, linux_boot;
3095 const char *initrd_filename;
3096 const char *kernel_filename, *kernel_cmdline;
3097 const char *boot_order = NULL;
3098 const char *boot_once = NULL;
3099 DisplayState *ds;
3100 int cyls, heads, secs, translation;
3101 QemuOpts *opts, *machine_opts;
3102 QemuOpts *hda_opts = NULL, *icount_opts = NULL, *accel_opts = NULL;
3103 QemuOptsList *olist;
3104 int optind;
3105 const char *optarg;
3106 const char *loadvm = NULL;
3107 MachineClass *machine_class;
3108 const char *cpu_model;
3109 const char *vga_model = NULL;
3110 const char *qtest_chrdev = NULL;
3111 const char *qtest_log = NULL;
3112 const char *pid_file = NULL;
3113 const char *incoming = NULL;
3114 bool userconfig = true;
3115 bool nographic = false;
3116 DisplayType display_type = DT_DEFAULT;
3117 int display_remote = 0;
3118 const char *log_mask = NULL;
3119 const char *log_file = NULL;
3120 char *trace_file = NULL;
3121 ram_addr_t maxram_size;
3122 uint64_t ram_slots = 0;
3123 FILE *vmstate_dump_file = NULL;
3124 Error *main_loop_err = NULL;
3125 Error *err = NULL;
3126 bool list_data_dirs = false;
3127 char **dirs;
3128 typedef struct BlockdevOptions_queue {
3129 BlockdevOptions *bdo;
3130 Location loc;
3131 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3132 } BlockdevOptions_queue;
3133 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3134 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3135
3136 module_call_init(MODULE_INIT_TRACE);
3137
3138 qemu_init_cpu_list();
3139 qemu_init_cpu_loop();
3140 qemu_mutex_lock_iothread();
3141
3142 atexit(qemu_run_exit_notifiers);
3143 error_set_progname(argv[0]);
3144 qemu_init_exec_dir(argv[0]);
3145
3146 module_call_init(MODULE_INIT_QOM);
3147 monitor_init_qmp_commands();
3148
3149 qemu_add_opts(&qemu_drive_opts);
3150 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3151 qemu_add_drive_opts(&qemu_common_drive_opts);
3152 qemu_add_drive_opts(&qemu_drive_opts);
3153 qemu_add_drive_opts(&bdrv_runtime_opts);
3154 qemu_add_opts(&qemu_chardev_opts);
3155 qemu_add_opts(&qemu_device_opts);
3156 qemu_add_opts(&qemu_netdev_opts);
3157 qemu_add_opts(&qemu_net_opts);
3158 qemu_add_opts(&qemu_rtc_opts);
3159 qemu_add_opts(&qemu_global_opts);
3160 qemu_add_opts(&qemu_mon_opts);
3161 qemu_add_opts(&qemu_trace_opts);
3162 qemu_add_opts(&qemu_option_rom_opts);
3163 qemu_add_opts(&qemu_machine_opts);
3164 qemu_add_opts(&qemu_accel_opts);
3165 qemu_add_opts(&qemu_mem_opts);
3166 qemu_add_opts(&qemu_smp_opts);
3167 qemu_add_opts(&qemu_boot_opts);
3168 qemu_add_opts(&qemu_sandbox_opts);
3169 qemu_add_opts(&qemu_add_fd_opts);
3170 qemu_add_opts(&qemu_object_opts);
3171 qemu_add_opts(&qemu_tpmdev_opts);
3172 qemu_add_opts(&qemu_realtime_opts);
3173 qemu_add_opts(&qemu_msg_opts);
3174 qemu_add_opts(&qemu_name_opts);
3175 qemu_add_opts(&qemu_numa_opts);
3176 qemu_add_opts(&qemu_icount_opts);
3177 qemu_add_opts(&qemu_semihosting_config_opts);
3178 qemu_add_opts(&qemu_fw_cfg_opts);
3179 module_call_init(MODULE_INIT_OPTS);
3180
3181 runstate_init();
3182
3183 if (qcrypto_init(&err) < 0) {
3184 error_reportf_err(err, "cannot initialize crypto: ");
3185 exit(1);
3186 }
3187 rtc_clock = QEMU_CLOCK_HOST;
3188
3189 QLIST_INIT (&vm_change_state_head);
3190 os_setup_early_signal_handling();
3191
3192 cpu_model = NULL;
3193 snapshot = 0;
3194 cyls = heads = secs = 0;
3195 translation = BIOS_ATA_TRANSLATION_AUTO;
3196
3197 nb_nics = 0;
3198
3199 bdrv_init_with_whitelist();
3200
3201 autostart = 1;
3202
3203 /* first pass of option parsing */
3204 optind = 1;
3205 while (optind < argc) {
3206 if (argv[optind][0] != '-') {
3207 /* disk image */
3208 optind++;
3209 } else {
3210 const QEMUOption *popt;
3211
3212 popt = lookup_opt(argc, argv, &optarg, &optind);
3213 switch (popt->index) {
3214 case QEMU_OPTION_nodefconfig:
3215 case QEMU_OPTION_nouserconfig:
3216 userconfig = false;
3217 break;
3218 }
3219 }
3220 }
3221
3222 if (userconfig) {
3223 if (qemu_read_default_config_file() < 0) {
3224 exit(1);
3225 }
3226 }
3227
3228 /* second pass of option parsing */
3229 optind = 1;
3230 for(;;) {
3231 if (optind >= argc)
3232 break;
3233 if (argv[optind][0] != '-') {
3234 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3235 } else {
3236 const QEMUOption *popt;
3237
3238 popt = lookup_opt(argc, argv, &optarg, &optind);
3239 if (!(popt->arch_mask & arch_type)) {
3240 error_report("Option not supported for this target");
3241 exit(1);
3242 }
3243 switch(popt->index) {
3244 case QEMU_OPTION_no_kvm_irqchip: {
3245 olist = qemu_find_opts("machine");
3246 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3247 break;
3248 }
3249 case QEMU_OPTION_cpu:
3250 /* hw initialization will check this */
3251 cpu_model = optarg;
3252 break;
3253 case QEMU_OPTION_hda:
3254 {
3255 char buf[256];
3256 if (cyls == 0)
3257 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3258 else
3259 snprintf(buf, sizeof(buf),
3260 "%s,cyls=%d,heads=%d,secs=%d%s",
3261 HD_OPTS , cyls, heads, secs,
3262 translation == BIOS_ATA_TRANSLATION_LBA ?
3263 ",trans=lba" :
3264 translation == BIOS_ATA_TRANSLATION_NONE ?
3265 ",trans=none" : "");
3266 drive_add(IF_DEFAULT, 0, optarg, buf);
3267 break;
3268 }
3269 case QEMU_OPTION_hdb:
3270 case QEMU_OPTION_hdc:
3271 case QEMU_OPTION_hdd:
3272 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3273 HD_OPTS);
3274 break;
3275 case QEMU_OPTION_blockdev:
3276 {
3277 Visitor *v;
3278 BlockdevOptions_queue *bdo;
3279
3280 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3281 if (!v) {
3282 error_report_err(err);
3283 exit(1);
3284 }
3285
3286 bdo = g_new(BlockdevOptions_queue, 1);
3287 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3288 &error_fatal);
3289 visit_free(v);
3290 loc_save(&bdo->loc);
3291 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3292 break;
3293 }
3294 case QEMU_OPTION_drive:
3295 if (drive_def(optarg) == NULL) {
3296 exit(1);
3297 }
3298 break;
3299 case QEMU_OPTION_set:
3300 if (qemu_set_option(optarg) != 0)
3301 exit(1);
3302 break;
3303 case QEMU_OPTION_global:
3304 if (qemu_global_option(optarg) != 0)
3305 exit(1);
3306 break;
3307 case QEMU_OPTION_mtdblock:
3308 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3309 break;
3310 case QEMU_OPTION_sd:
3311 drive_add(IF_SD, -1, optarg, SD_OPTS);
3312 break;
3313 case QEMU_OPTION_pflash:
3314 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3315 break;
3316 case QEMU_OPTION_snapshot:
3317 snapshot = 1;
3318 break;
3319 case QEMU_OPTION_hdachs:
3320 {
3321 const char *p;
3322 p = optarg;
3323 cyls = strtol(p, (char **)&p, 0);
3324 if (cyls < 1 || cyls > 16383)
3325 goto chs_fail;
3326 if (*p != ',')
3327 goto chs_fail;
3328 p++;
3329 heads = strtol(p, (char **)&p, 0);
3330 if (heads < 1 || heads > 16)
3331 goto chs_fail;
3332 if (*p != ',')
3333 goto chs_fail;
3334 p++;
3335 secs = strtol(p, (char **)&p, 0);
3336 if (secs < 1 || secs > 63)
3337 goto chs_fail;
3338 if (*p == ',') {
3339 p++;
3340 if (!strcmp(p, "large")) {
3341 translation = BIOS_ATA_TRANSLATION_LARGE;
3342 } else if (!strcmp(p, "rechs")) {
3343 translation = BIOS_ATA_TRANSLATION_RECHS;
3344 } else if (!strcmp(p, "none")) {
3345 translation = BIOS_ATA_TRANSLATION_NONE;
3346 } else if (!strcmp(p, "lba")) {
3347 translation = BIOS_ATA_TRANSLATION_LBA;
3348 } else if (!strcmp(p, "auto")) {
3349 translation = BIOS_ATA_TRANSLATION_AUTO;
3350 } else {
3351 goto chs_fail;
3352 }
3353 } else if (*p != '\0') {
3354 chs_fail:
3355 error_report("invalid physical CHS format");
3356 exit(1);
3357 }
3358 if (hda_opts != NULL) {
3359 qemu_opt_set_number(hda_opts, "cyls", cyls,
3360 &error_abort);
3361 qemu_opt_set_number(hda_opts, "heads", heads,
3362 &error_abort);
3363 qemu_opt_set_number(hda_opts, "secs", secs,
3364 &error_abort);
3365 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3366 qemu_opt_set(hda_opts, "trans", "large",
3367 &error_abort);
3368 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3369 qemu_opt_set(hda_opts, "trans", "rechs",
3370 &error_abort);
3371 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3372 qemu_opt_set(hda_opts, "trans", "lba",
3373 &error_abort);
3374 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3375 qemu_opt_set(hda_opts, "trans", "none",
3376 &error_abort);
3377 }
3378 }
3379 }
3380 error_report("'-hdachs' is deprecated, please use '-device"
3381 " ide-hd,cyls=c,heads=h,secs=s,...' instead");
3382 break;
3383 case QEMU_OPTION_numa:
3384 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3385 optarg, true);
3386 if (!opts) {
3387 exit(1);
3388 }
3389 break;
3390 case QEMU_OPTION_display:
3391 display_type = select_display(optarg);
3392 break;
3393 case QEMU_OPTION_nographic:
3394 olist = qemu_find_opts("machine");
3395 qemu_opts_parse_noisily(olist, "graphics=off", false);
3396 nographic = true;
3397 display_type = DT_NONE;
3398 break;
3399 case QEMU_OPTION_curses:
3400 #ifdef CONFIG_CURSES
3401 display_type = DT_CURSES;
3402 #else
3403 error_report("curses support is disabled");
3404 exit(1);
3405 #endif
3406 break;
3407 case QEMU_OPTION_portrait:
3408 graphic_rotate = 90;
3409 break;
3410 case QEMU_OPTION_rotate:
3411 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3412 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3413 graphic_rotate != 180 && graphic_rotate != 270) {
3414 error_report("only 90, 180, 270 deg rotation is available");
3415 exit(1);
3416 }
3417 break;
3418 case QEMU_OPTION_kernel:
3419 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3420 &error_abort);
3421 break;
3422 case QEMU_OPTION_initrd:
3423 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3424 &error_abort);
3425 break;
3426 case QEMU_OPTION_append:
3427 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3428 &error_abort);
3429 break;
3430 case QEMU_OPTION_dtb:
3431 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3432 &error_abort);
3433 break;
3434 case QEMU_OPTION_cdrom:
3435 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3436 break;
3437 case QEMU_OPTION_boot:
3438 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3439 optarg, true);
3440 if (!opts) {
3441 exit(1);
3442 }
3443 break;
3444 case QEMU_OPTION_fda:
3445 case QEMU_OPTION_fdb:
3446 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3447 optarg, FD_OPTS);
3448 break;
3449 case QEMU_OPTION_no_fd_bootchk:
3450 fd_bootchk = 0;
3451 break;
3452 case QEMU_OPTION_netdev:
3453 default_net = 0;
3454 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3455 exit(1);
3456 }
3457 break;
3458 case QEMU_OPTION_net:
3459 default_net = 0;
3460 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3461 exit(1);
3462 }
3463 break;
3464 #ifdef CONFIG_LIBISCSI
3465 case QEMU_OPTION_iscsi:
3466 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3467 optarg, false);
3468 if (!opts) {
3469 exit(1);
3470 }
3471 break;
3472 #endif
3473 #ifdef CONFIG_SLIRP
3474 case QEMU_OPTION_tftp:
3475 error_report("The -tftp option is deprecated. "
3476 "Please use '-netdev user,tftp=...' instead.");
3477 legacy_tftp_prefix = optarg;
3478 break;
3479 case QEMU_OPTION_bootp:
3480 error_report("The -bootp option is deprecated. "
3481 "Please use '-netdev user,bootfile=...' instead.");
3482 legacy_bootp_filename = optarg;
3483 break;
3484 case QEMU_OPTION_redir:
3485 error_report("The -redir option is deprecated. "
3486 "Please use '-netdev user,hostfwd=...' instead.");
3487 if (net_slirp_redir(optarg) < 0)
3488 exit(1);
3489 break;
3490 #endif
3491 case QEMU_OPTION_bt:
3492 add_device_config(DEV_BT, optarg);
3493 break;
3494 case QEMU_OPTION_audio_help:
3495 AUD_help ();
3496 exit (0);
3497 break;
3498 case QEMU_OPTION_soundhw:
3499 select_soundhw (optarg);
3500 break;
3501 case QEMU_OPTION_h:
3502 help(0);
3503 break;
3504 case QEMU_OPTION_version:
3505 version();
3506 exit(0);
3507 break;
3508 case QEMU_OPTION_m:
3509 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3510 optarg, true);
3511 if (!opts) {
3512 exit(EXIT_FAILURE);
3513 }
3514 break;
3515 #ifdef CONFIG_TPM
3516 case QEMU_OPTION_tpmdev:
3517 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3518 exit(1);
3519 }
3520 break;
3521 #endif
3522 case QEMU_OPTION_mempath:
3523 mem_path = optarg;
3524 break;
3525 case QEMU_OPTION_mem_prealloc:
3526 mem_prealloc = 1;
3527 break;
3528 case QEMU_OPTION_d:
3529 log_mask = optarg;
3530 break;
3531 case QEMU_OPTION_D:
3532 log_file = optarg;
3533 break;
3534 case QEMU_OPTION_DFILTER:
3535 qemu_set_dfilter_ranges(optarg, &error_fatal);
3536 break;
3537 case QEMU_OPTION_s:
3538 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3539 break;
3540 case QEMU_OPTION_gdb:
3541 add_device_config(DEV_GDB, optarg);
3542 break;
3543 case QEMU_OPTION_L:
3544 if (is_help_option(optarg)) {
3545 list_data_dirs = true;
3546 } else {
3547 qemu_add_data_dir(optarg);
3548 }
3549 break;
3550 case QEMU_OPTION_bios:
3551 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3552 &error_abort);
3553 break;
3554 case QEMU_OPTION_singlestep:
3555 singlestep = 1;
3556 break;
3557 case QEMU_OPTION_S:
3558 autostart = 0;
3559 break;
3560 case QEMU_OPTION_k:
3561 keyboard_layout = optarg;
3562 break;
3563 case QEMU_OPTION_localtime:
3564 rtc_utc = 0;
3565 break;
3566 case QEMU_OPTION_vga:
3567 vga_model = optarg;
3568 default_vga = 0;
3569 break;
3570 case QEMU_OPTION_g:
3571 {
3572 const char *p;
3573 int w, h, depth;
3574 p = optarg;
3575 w = strtol(p, (char **)&p, 10);
3576 if (w <= 0) {
3577 graphic_error:
3578 error_report("invalid resolution or depth");
3579 exit(1);
3580 }
3581 if (*p != 'x')
3582 goto graphic_error;
3583 p++;
3584 h = strtol(p, (char **)&p, 10);
3585 if (h <= 0)
3586 goto graphic_error;
3587 if (*p == 'x') {
3588 p++;
3589 depth = strtol(p, (char **)&p, 10);
3590 if (depth != 8 && depth != 15 && depth != 16 &&
3591 depth != 24 && depth != 32)
3592 goto graphic_error;
3593 } else if (*p == '\0') {
3594 depth = graphic_depth;
3595 } else {
3596 goto graphic_error;
3597 }
3598
3599 graphic_width = w;
3600 graphic_height = h;
3601 graphic_depth = depth;
3602 }
3603 break;
3604 case QEMU_OPTION_echr:
3605 {
3606 char *r;
3607 term_escape_char = strtol(optarg, &r, 0);
3608 if (r == optarg)
3609 printf("Bad argument to echr\n");
3610 break;
3611 }
3612 case QEMU_OPTION_monitor:
3613 default_monitor = 0;
3614 if (strncmp(optarg, "none", 4)) {
3615 monitor_parse(optarg, "readline", false);
3616 }
3617 break;
3618 case QEMU_OPTION_qmp:
3619 monitor_parse(optarg, "control", false);
3620 default_monitor = 0;
3621 break;
3622 case QEMU_OPTION_qmp_pretty:
3623 monitor_parse(optarg, "control", true);
3624 default_monitor = 0;
3625 break;
3626 case QEMU_OPTION_mon:
3627 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3628 true);
3629 if (!opts) {
3630 exit(1);
3631 }
3632 default_monitor = 0;
3633 break;
3634 case QEMU_OPTION_chardev:
3635 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3636 optarg, true);
3637 if (!opts) {
3638 exit(1);
3639 }
3640 break;
3641 case QEMU_OPTION_fsdev:
3642 olist = qemu_find_opts("fsdev");
3643 if (!olist) {
3644 error_report("fsdev support is disabled");
3645 exit(1);
3646 }
3647 opts = qemu_opts_parse_noisily(olist, optarg, true);
3648 if (!opts) {
3649 exit(1);
3650 }
3651 break;
3652 case QEMU_OPTION_virtfs: {
3653 QemuOpts *fsdev;
3654 QemuOpts *device;
3655 const char *writeout, *sock_fd, *socket, *path, *security_model;
3656
3657 olist = qemu_find_opts("virtfs");
3658 if (!olist) {
3659 error_report("virtfs support is disabled");
3660 exit(1);
3661 }
3662 opts = qemu_opts_parse_noisily(olist, optarg, true);
3663 if (!opts) {
3664 exit(1);
3665 }
3666
3667 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3668 qemu_opt_get(opts, "mount_tag") == NULL) {
3669 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3670 exit(1);
3671 }
3672 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3673 qemu_opts_id(opts) ?:
3674 qemu_opt_get(opts, "mount_tag"),
3675 1, NULL);
3676 if (!fsdev) {
3677 error_report("duplicate or invalid fsdev id: %s",
3678 qemu_opt_get(opts, "mount_tag"));
3679 exit(1);
3680 }
3681
3682 writeout = qemu_opt_get(opts, "writeout");
3683 if (writeout) {
3684 #ifdef CONFIG_SYNC_FILE_RANGE
3685 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3686 #else
3687 error_report("writeout=immediate not supported "
3688 "on this platform");
3689 exit(1);
3690 #endif
3691 }
3692 qemu_opt_set(fsdev, "fsdriver",
3693 qemu_opt_get(opts, "fsdriver"), &error_abort);
3694 path = qemu_opt_get(opts, "path");
3695 if (path) {
3696 qemu_opt_set(fsdev, "path", path, &error_abort);
3697 }
3698 security_model = qemu_opt_get(opts, "security_model");
3699 if (security_model) {
3700 qemu_opt_set(fsdev, "security_model", security_model,
3701 &error_abort);
3702 }
3703 socket = qemu_opt_get(opts, "socket");
3704 if (socket) {
3705 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3706 }
3707 sock_fd = qemu_opt_get(opts, "sock_fd");
3708 if (sock_fd) {
3709 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3710 }
3711
3712 qemu_opt_set_bool(fsdev, "readonly",
3713 qemu_opt_get_bool(opts, "readonly", 0),
3714 &error_abort);
3715 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3716 &error_abort);
3717 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3718 qemu_opt_set(device, "fsdev",
3719 qemu_opts_id(fsdev), &error_abort);
3720 qemu_opt_set(device, "mount_tag",
3721 qemu_opt_get(opts, "mount_tag"), &error_abort);
3722 break;
3723 }
3724 case QEMU_OPTION_virtfs_synth: {
3725 QemuOpts *fsdev;
3726 QemuOpts *device;
3727
3728 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3729 1, NULL);
3730 if (!fsdev) {
3731 error_report("duplicate option: %s", "virtfs_synth");
3732 exit(1);
3733 }
3734 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3735
3736 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3737 &error_abort);
3738 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3739 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3740 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3741 break;
3742 }
3743 case QEMU_OPTION_serial:
3744 add_device_config(DEV_SERIAL, optarg);
3745 default_serial = 0;
3746 if (strncmp(optarg, "mon:", 4) == 0) {
3747 default_monitor = 0;
3748 }
3749 break;
3750 case QEMU_OPTION_watchdog:
3751 if (watchdog) {
3752 error_report("only one watchdog option may be given");
3753 return 1;
3754 }
3755 watchdog = optarg;
3756 break;
3757 case QEMU_OPTION_watchdog_action:
3758 if (select_watchdog_action(optarg) == -1) {
3759 error_report("unknown -watchdog-action parameter");
3760 exit(1);
3761 }
3762 break;
3763 case QEMU_OPTION_virtiocon:
3764 add_device_config(DEV_VIRTCON, optarg);
3765 default_virtcon = 0;
3766 if (strncmp(optarg, "mon:", 4) == 0) {
3767 default_monitor = 0;
3768 }
3769 break;
3770 case QEMU_OPTION_parallel:
3771 add_device_config(DEV_PARALLEL, optarg);
3772 default_parallel = 0;
3773 if (strncmp(optarg, "mon:", 4) == 0) {
3774 default_monitor = 0;
3775 }
3776 break;
3777 case QEMU_OPTION_debugcon:
3778 add_device_config(DEV_DEBUGCON, optarg);
3779 break;
3780 case QEMU_OPTION_loadvm:
3781 loadvm = optarg;
3782 break;
3783 case QEMU_OPTION_full_screen:
3784 full_screen = 1;
3785 break;
3786 case QEMU_OPTION_no_frame:
3787 no_frame = 1;
3788 break;
3789 case QEMU_OPTION_alt_grab:
3790 alt_grab = 1;
3791 break;
3792 case QEMU_OPTION_ctrl_grab:
3793 ctrl_grab = 1;
3794 break;
3795 case QEMU_OPTION_no_quit:
3796 no_quit = 1;
3797 break;
3798 case QEMU_OPTION_sdl:
3799 #ifdef CONFIG_SDL
3800 display_type = DT_SDL;
3801 break;
3802 #else
3803 error_report("SDL support is disabled");
3804 exit(1);
3805 #endif
3806 case QEMU_OPTION_pidfile:
3807 pid_file = optarg;
3808 break;
3809 case QEMU_OPTION_win2k_hack:
3810 win2k_install_hack = 1;
3811 break;
3812 case QEMU_OPTION_rtc_td_hack: {
3813 static GlobalProperty slew_lost_ticks = {
3814 .driver = "mc146818rtc",
3815 .property = "lost_tick_policy",
3816 .value = "slew",
3817 };
3818
3819 qdev_prop_register_global(&slew_lost_ticks);
3820 break;
3821 }
3822 case QEMU_OPTION_acpitable:
3823 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3824 optarg, true);
3825 if (!opts) {
3826 exit(1);
3827 }
3828 acpi_table_add(opts, &error_fatal);
3829 break;
3830 case QEMU_OPTION_smbios:
3831 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3832 optarg, false);
3833 if (!opts) {
3834 exit(1);
3835 }
3836 smbios_entry_add(opts, &error_fatal);
3837 break;
3838 case QEMU_OPTION_fwcfg:
3839 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3840 optarg, true);
3841 if (opts == NULL) {
3842 exit(1);
3843 }
3844 break;
3845 case QEMU_OPTION_enable_kvm:
3846 olist = qemu_find_opts("machine");
3847 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3848 break;
3849 case QEMU_OPTION_enable_hax:
3850 olist = qemu_find_opts("machine");
3851 qemu_opts_parse_noisily(olist, "accel=hax", false);
3852 break;
3853 case QEMU_OPTION_M:
3854 case QEMU_OPTION_machine:
3855 olist = qemu_find_opts("machine");
3856 opts = qemu_opts_parse_noisily(olist, optarg, true);
3857 if (!opts) {
3858 exit(1);
3859 }
3860 break;
3861 case QEMU_OPTION_no_kvm:
3862 olist = qemu_find_opts("machine");
3863 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3864 break;
3865 case QEMU_OPTION_no_kvm_pit: {
3866 warn_report("ignoring deprecated option");
3867 break;
3868 }
3869 case QEMU_OPTION_no_kvm_pit_reinjection: {
3870 static GlobalProperty kvm_pit_lost_tick_policy = {
3871 .driver = "kvm-pit",
3872 .property = "lost_tick_policy",
3873 .value = "discard",
3874 };
3875
3876 warn_report("deprecated, replaced by "
3877 "-global kvm-pit.lost_tick_policy=discard");
3878 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3879 break;
3880 }
3881 case QEMU_OPTION_accel:
3882 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3883 optarg, true);
3884 optarg = qemu_opt_get(accel_opts, "accel");
3885 if (!optarg || is_help_option(optarg)) {
3886 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3887 exit(0);
3888 }
3889 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3890 false, &error_abort);
3891 qemu_opt_set(opts, "accel", optarg, &error_abort);
3892 break;
3893 case QEMU_OPTION_usb:
3894 olist = qemu_find_opts("machine");
3895 qemu_opts_parse_noisily(olist, "usb=on", false);
3896 break;
3897 case QEMU_OPTION_usbdevice:
3898 error_report("'-usbdevice' is deprecated, please use "
3899 "'-device usb-...' instead");
3900 olist = qemu_find_opts("machine");
3901 qemu_opts_parse_noisily(olist, "usb=on", false);
3902 add_device_config(DEV_USB, optarg);
3903 break;
3904 case QEMU_OPTION_device:
3905 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3906 optarg, true)) {
3907 exit(1);
3908 }
3909 break;
3910 case QEMU_OPTION_smp:
3911 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3912 optarg, true)) {
3913 exit(1);
3914 }
3915 break;
3916 case QEMU_OPTION_vnc:
3917 vnc_parse(optarg, &error_fatal);
3918 break;
3919 case QEMU_OPTION_no_acpi:
3920 acpi_enabled = 0;
3921 break;
3922 case QEMU_OPTION_no_hpet:
3923 no_hpet = 1;
3924 break;
3925 case QEMU_OPTION_balloon:
3926 if (balloon_parse(optarg) < 0) {
3927 error_report("unknown -balloon argument %s", optarg);
3928 exit(1);
3929 }
3930 break;
3931 case QEMU_OPTION_no_reboot:
3932 no_reboot = 1;
3933 break;
3934 case QEMU_OPTION_no_shutdown:
3935 no_shutdown = 1;
3936 break;
3937 case QEMU_OPTION_show_cursor:
3938 cursor_hide = 0;
3939 break;
3940 case QEMU_OPTION_uuid:
3941 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3942 error_report("failed to parse UUID string: wrong format");
3943 exit(1);
3944 }
3945 qemu_uuid_set = true;
3946 break;
3947 case QEMU_OPTION_option_rom:
3948 if (nb_option_roms >= MAX_OPTION_ROMS) {
3949 error_report("too many option ROMs");
3950 exit(1);
3951 }
3952 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3953 optarg, true);
3954 if (!opts) {
3955 exit(1);
3956 }
3957 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3958 option_rom[nb_option_roms].bootindex =
3959 qemu_opt_get_number(opts, "bootindex", -1);
3960 if (!option_rom[nb_option_roms].name) {
3961 error_report("Option ROM file is not specified");
3962 exit(1);
3963 }
3964 nb_option_roms++;
3965 break;
3966 case QEMU_OPTION_semihosting:
3967 semihosting.enabled = true;
3968 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3969 break;
3970 case QEMU_OPTION_semihosting_config:
3971 semihosting.enabled = true;
3972 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3973 optarg, false);
3974 if (opts != NULL) {
3975 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3976 true);
3977 const char *target = qemu_opt_get(opts, "target");
3978 if (target != NULL) {
3979 if (strcmp("native", target) == 0) {
3980 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3981 } else if (strcmp("gdb", target) == 0) {
3982 semihosting.target = SEMIHOSTING_TARGET_GDB;
3983 } else if (strcmp("auto", target) == 0) {
3984 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3985 } else {
3986 error_report("unsupported semihosting-config %s",
3987 optarg);
3988 exit(1);
3989 }
3990 } else {
3991 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3992 }
3993 /* Set semihosting argument count and vector */
3994 qemu_opt_foreach(opts, add_semihosting_arg,
3995 &semihosting, NULL);
3996 } else {
3997 error_report("unsupported semihosting-config %s", optarg);
3998 exit(1);
3999 }
4000 break;
4001 case QEMU_OPTION_tdf:
4002 warn_report("ignoring deprecated option");
4003 break;
4004 case QEMU_OPTION_name:
4005 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
4006 optarg, true);
4007 if (!opts) {
4008 exit(1);
4009 }
4010 break;
4011 case QEMU_OPTION_prom_env:
4012 if (nb_prom_envs >= MAX_PROM_ENVS) {
4013 error_report("too many prom variables");
4014 exit(1);
4015 }
4016 prom_envs[nb_prom_envs] = optarg;
4017 nb_prom_envs++;
4018 break;
4019 case QEMU_OPTION_old_param:
4020 old_param = 1;
4021 break;
4022 case QEMU_OPTION_clock:
4023 /* Clock options no longer exist. Keep this option for
4024 * backward compatibility.
4025 */
4026 break;
4027 case QEMU_OPTION_startdate:
4028 configure_rtc_date_offset(optarg, 1);
4029 break;
4030 case QEMU_OPTION_rtc:
4031 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
4032 false);
4033 if (!opts) {
4034 exit(1);
4035 }
4036 configure_rtc(opts);
4037 break;
4038 case QEMU_OPTION_tb_size:
4039 #ifndef CONFIG_TCG
4040 error_report("TCG is disabled");
4041 exit(1);
4042 #endif
4043 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
4044 error_report("Invalid argument to -tb-size");
4045 exit(1);
4046 }
4047 break;
4048 case QEMU_OPTION_icount:
4049 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
4050 optarg, true);
4051 if (!icount_opts) {
4052 exit(1);
4053 }
4054 break;
4055 case QEMU_OPTION_incoming:
4056 if (!incoming) {
4057 runstate_set(RUN_STATE_INMIGRATE);
4058 }
4059 incoming = optarg;
4060 break;
4061 case QEMU_OPTION_only_migratable:
4062 /*
4063 * TODO: we can remove this option one day, and we
4064 * should all use:
4065 *
4066 * "-global migration.only-migratable=true"
4067 */
4068 qemu_global_option("migration.only-migratable=true");
4069 break;
4070 case QEMU_OPTION_nodefaults:
4071 has_defaults = 0;
4072 break;
4073 case QEMU_OPTION_xen_domid:
4074 if (!(xen_available())) {
4075 error_report("Option not supported for this target");
4076 exit(1);
4077 }
4078 xen_domid = atoi(optarg);
4079 break;
4080 case QEMU_OPTION_xen_create:
4081 if (!(xen_available())) {
4082 error_report("Option not supported for this target");
4083 exit(1);
4084 }
4085 xen_mode = XEN_CREATE;
4086 break;
4087 case QEMU_OPTION_xen_attach:
4088 if (!(xen_available())) {
4089 error_report("Option not supported for this target");
4090 exit(1);
4091 }
4092 xen_mode = XEN_ATTACH;
4093 break;
4094 case QEMU_OPTION_xen_domid_restrict:
4095 if (!(xen_available())) {
4096 error_report("Option not supported for this target");
4097 exit(1);
4098 }
4099 xen_domid_restrict = true;
4100 break;
4101 case QEMU_OPTION_trace:
4102 g_free(trace_file);
4103 trace_file = trace_opt_parse(optarg);
4104 break;
4105 case QEMU_OPTION_readconfig:
4106 {
4107 int ret = qemu_read_config_file(optarg);
4108 if (ret < 0) {
4109 error_report("read config %s: %s", optarg,
4110 strerror(-ret));
4111 exit(1);
4112 }
4113 break;
4114 }
4115 case QEMU_OPTION_spice:
4116 olist = qemu_find_opts("spice");
4117 if (!olist) {
4118 error_report("spice support is disabled");
4119 exit(1);
4120 }
4121 opts = qemu_opts_parse_noisily(olist, optarg, false);
4122 if (!opts) {
4123 exit(1);
4124 }
4125 display_remote++;
4126 break;
4127 case QEMU_OPTION_writeconfig:
4128 {
4129 FILE *fp;
4130 if (strcmp(optarg, "-") == 0) {
4131 fp = stdout;
4132 } else {
4133 fp = fopen(optarg, "w");
4134 if (fp == NULL) {
4135 error_report("open %s: %s", optarg,
4136 strerror(errno));
4137 exit(1);
4138 }
4139 }
4140 qemu_config_write(fp);
4141 if (fp != stdout) {
4142 fclose(fp);
4143 }
4144 break;
4145 }
4146 case QEMU_OPTION_qtest:
4147 qtest_chrdev = optarg;
4148 break;
4149 case QEMU_OPTION_qtest_log:
4150 qtest_log = optarg;
4151 break;
4152 case QEMU_OPTION_sandbox:
4153 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4154 optarg, true);
4155 if (!opts) {
4156 exit(1);
4157 }
4158 break;
4159 case QEMU_OPTION_add_fd:
4160 #ifndef _WIN32
4161 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4162 optarg, false);
4163 if (!opts) {
4164 exit(1);
4165 }
4166 #else
4167 error_report("File descriptor passing is disabled on this "
4168 "platform");
4169 exit(1);
4170 #endif
4171 break;
4172 case QEMU_OPTION_object:
4173 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4174 optarg, true);
4175 if (!opts) {
4176 exit(1);
4177 }
4178 break;
4179 case QEMU_OPTION_realtime:
4180 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4181 optarg, false);
4182 if (!opts) {
4183 exit(1);
4184 }
4185 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4186 break;
4187 case QEMU_OPTION_msg:
4188 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4189 false);
4190 if (!opts) {
4191 exit(1);
4192 }
4193 configure_msg(opts);
4194 break;
4195 case QEMU_OPTION_dump_vmstate:
4196 if (vmstate_dump_file) {
4197 error_report("only one '-dump-vmstate' "
4198 "option may be given");
4199 exit(1);
4200 }
4201 vmstate_dump_file = fopen(optarg, "w");
4202 if (vmstate_dump_file == NULL) {
4203 error_report("open %s: %s", optarg, strerror(errno));
4204 exit(1);
4205 }
4206 break;
4207 default:
4208 os_parse_cmd_args(popt->index, optarg);
4209 }
4210 }
4211 }
4212 /*
4213 * Clear error location left behind by the loop.
4214 * Best done right after the loop. Do not insert code here!
4215 */
4216 loc_set_none();
4217
4218 replay_configure(icount_opts);
4219
4220 machine_class = select_machine();
4221
4222 set_memory_options(&ram_slots, &maxram_size, machine_class);
4223
4224 os_daemonize();
4225 rcu_disable_atfork();
4226
4227 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4228 error_report("could not acquire pid file: %s", strerror(errno));
4229 exit(1);
4230 }
4231
4232 if (qemu_init_main_loop(&main_loop_err)) {
4233 error_report_err(main_loop_err);
4234 exit(1);
4235 }
4236
4237 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4238 parse_sandbox, NULL, NULL)) {
4239 exit(1);
4240 }
4241
4242 if (qemu_opts_foreach(qemu_find_opts("name"),
4243 parse_name, NULL, NULL)) {
4244 exit(1);
4245 }
4246
4247 #ifndef _WIN32
4248 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4249 parse_add_fd, NULL, NULL)) {
4250 exit(1);
4251 }
4252
4253 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4254 cleanup_add_fd, NULL, NULL)) {
4255 exit(1);
4256 }
4257 #endif
4258
4259 current_machine = MACHINE(object_new(object_class_get_name(
4260 OBJECT_CLASS(machine_class))));
4261 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4262 exit(0);
4263 }
4264 object_property_add_child(object_get_root(), "machine",
4265 OBJECT(current_machine), &error_abort);
4266
4267 if (machine_class->minimum_page_bits) {
4268 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4269 /* This would be a board error: specifying a minimum smaller than
4270 * a target's compile-time fixed setting.
4271 */
4272 g_assert_not_reached();
4273 }
4274 }
4275
4276 cpu_exec_init_all();
4277
4278 if (machine_class->hw_version) {
4279 qemu_set_hw_version(machine_class->hw_version);
4280 }
4281
4282 if (cpu_model && is_help_option(cpu_model)) {
4283 list_cpus(stdout, &fprintf, cpu_model);
4284 exit(0);
4285 }
4286
4287 if (!trace_init_backends()) {
4288 exit(1);
4289 }
4290 trace_init_file(trace_file);
4291
4292 /* Open the logfile at this point and set the log mask if necessary.
4293 */
4294 if (log_file) {
4295 qemu_set_log_filename(log_file, &error_fatal);
4296 }
4297
4298 if (log_mask) {
4299 int mask;
4300 mask = qemu_str_to_log_mask(log_mask);
4301 if (!mask) {
4302 qemu_print_log_usage(stdout);
4303 exit(1);
4304 }
4305 qemu_set_log(mask);
4306 } else {
4307 qemu_set_log(0);
4308 }
4309
4310 /* add configured firmware directories */
4311 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4312 for (i = 0; dirs[i] != NULL; i++) {
4313 qemu_add_data_dir(dirs[i]);
4314 }
4315
4316 /* try to find datadir relative to the executable path */
4317 qemu_add_data_dir(os_find_datadir());
4318
4319 /* add the datadir specified when building */
4320 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4321
4322 /* -L help lists the data directories and exits. */
4323 if (list_data_dirs) {
4324 for (i = 0; i < data_dir_idx; i++) {
4325 printf("%s\n", data_dir[i]);
4326 }
4327 exit(0);
4328 }
4329
4330 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4331
4332 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4333 if (max_cpus > machine_class->max_cpus) {
4334 error_report("Invalid SMP CPUs %d. The max CPUs "
4335 "supported by machine '%s' is %d", max_cpus,
4336 machine_class->name, machine_class->max_cpus);
4337 exit(1);
4338 }
4339
4340 /*
4341 * Get the default machine options from the machine if it is not already
4342 * specified either by the configuration file or by the command line.
4343 */
4344 if (machine_class->default_machine_opts) {
4345 qemu_opts_set_defaults(qemu_find_opts("machine"),
4346 machine_class->default_machine_opts, 0);
4347 }
4348
4349 qemu_opts_foreach(qemu_find_opts("device"),
4350 default_driver_check, NULL, NULL);
4351 qemu_opts_foreach(qemu_find_opts("global"),
4352 default_driver_check, NULL, NULL);
4353
4354 if (!vga_model && !default_vga) {
4355 vga_interface_type = VGA_DEVICE;
4356 }
4357 if (!has_defaults || machine_class->no_serial) {
4358 default_serial = 0;
4359 }
4360 if (!has_defaults || machine_class->no_parallel) {
4361 default_parallel = 0;
4362 }
4363 if (!has_defaults || !machine_class->use_virtcon) {
4364 default_virtcon = 0;
4365 }
4366 if (!has_defaults || !machine_class->use_sclp) {
4367 default_sclp = 0;
4368 }
4369 if (!has_defaults || machine_class->no_floppy) {
4370 default_floppy = 0;
4371 }
4372 if (!has_defaults || machine_class->no_cdrom) {
4373 default_cdrom = 0;
4374 }
4375 if (!has_defaults || machine_class->no_sdcard) {
4376 default_sdcard = 0;
4377 }
4378 if (!has_defaults) {
4379 default_monitor = 0;
4380 default_net = 0;
4381 default_vga = 0;
4382 }
4383
4384 if (is_daemonized()) {
4385 /* According to documentation and historically, -nographic redirects
4386 * serial port, parallel port and monitor to stdio, which does not work
4387 * with -daemonize. We can redirect these to null instead, but since
4388 * -nographic is legacy, let's just error out.
4389 * We disallow -nographic only if all other ports are not redirected
4390 * explicitly, to not break existing legacy setups which uses
4391 * -nographic _and_ redirects all ports explicitly - this is valid
4392 * usage, -nographic is just a no-op in this case.
4393 */
4394 if (nographic
4395 && (default_parallel || default_serial
4396 || default_monitor || default_virtcon)) {
4397 error_report("-nographic cannot be used with -daemonize");
4398 exit(1);
4399 }
4400 #ifdef CONFIG_CURSES
4401 if (display_type == DT_CURSES) {
4402 error_report("curses display cannot be used with -daemonize");
4403 exit(1);
4404 }
4405 #endif
4406 }
4407
4408 if (nographic) {
4409 if (default_parallel)
4410 add_device_config(DEV_PARALLEL, "null");
4411 if (default_serial && default_monitor) {
4412 add_device_config(DEV_SERIAL, "mon:stdio");
4413 } else if (default_virtcon && default_monitor) {
4414 add_device_config(DEV_VIRTCON, "mon:stdio");
4415 } else if (default_sclp && default_monitor) {
4416 add_device_config(DEV_SCLP, "mon:stdio");
4417 } else {
4418 if (default_serial)
4419 add_device_config(DEV_SERIAL, "stdio");
4420 if (default_virtcon)
4421 add_device_config(DEV_VIRTCON, "stdio");
4422 if (default_sclp) {
4423 add_device_config(DEV_SCLP, "stdio");
4424 }
4425 if (default_monitor)
4426 monitor_parse("stdio", "readline", false);
4427 }
4428 } else {
4429 if (default_serial)
4430 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4431 if (default_parallel)
4432 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4433 if (default_monitor)
4434 monitor_parse("vc:80Cx24C", "readline", false);
4435 if (default_virtcon)
4436 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4437 if (default_sclp) {
4438 add_device_config(DEV_SCLP, "vc:80Cx24C");
4439 }
4440 }
4441
4442 #if defined(CONFIG_VNC)
4443 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4444 display_remote++;
4445 }
4446 #endif
4447 if (display_type == DT_DEFAULT && !display_remote) {
4448 #if defined(CONFIG_GTK)
4449 display_type = DT_GTK;
4450 #elif defined(CONFIG_SDL)
4451 display_type = DT_SDL;
4452 #elif defined(CONFIG_COCOA)
4453 display_type = DT_COCOA;
4454 #elif defined(CONFIG_VNC)
4455 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4456 #else
4457 display_type = DT_NONE;
4458 #endif
4459 }
4460
4461 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4462 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4463 "for SDL, ignoring option");
4464 }
4465 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4466 error_report("-no-quit is only valid for GTK and SDL, "
4467 "ignoring option");
4468 }
4469
4470 if (display_type == DT_GTK) {
4471 early_gtk_display_init(request_opengl);
4472 }
4473
4474 if (display_type == DT_SDL) {
4475 sdl_display_early_init(request_opengl);
4476 }
4477
4478 qemu_console_early_init();
4479
4480 if (request_opengl == 1 && display_opengl == 0) {
4481 #if defined(CONFIG_OPENGL)
4482 error_report("OpenGL is not supported by the display");
4483 #else
4484 error_report("OpenGL support is disabled");
4485 #endif
4486 exit(1);
4487 }
4488
4489 page_size_init();
4490 socket_init();
4491
4492 if (qemu_opts_foreach(qemu_find_opts("object"),
4493 user_creatable_add_opts_foreach,
4494 object_create_initial, NULL)) {
4495 exit(1);
4496 }
4497
4498 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4499 chardev_init_func, NULL, NULL)) {
4500 exit(1);
4501 }
4502
4503 #ifdef CONFIG_VIRTFS
4504 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4505 fsdev_init_func, NULL, NULL)) {
4506 exit(1);
4507 }
4508 #endif
4509
4510 if (qemu_opts_foreach(qemu_find_opts("device"),
4511 device_help_func, NULL, NULL)) {
4512 exit(0);
4513 }
4514
4515 machine_opts = qemu_get_machine_opts();
4516 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4517 NULL)) {
4518 object_unref(OBJECT(current_machine));
4519 exit(1);
4520 }
4521
4522 configure_accelerator(current_machine);
4523
4524 /*
4525 * Register all the global properties, including accel properties,
4526 * machine properties, and user-specified ones.
4527 */
4528 register_global_properties(current_machine);
4529
4530 /*
4531 * Migration object can only be created after global properties
4532 * are applied correctly.
4533 */
4534 migration_object_init();
4535
4536 if (qtest_chrdev) {
4537 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4538 }
4539
4540 machine_opts = qemu_get_machine_opts();
4541 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4542 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4543 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4544 bios_name = qemu_opt_get(machine_opts, "firmware");
4545
4546 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4547 if (opts) {
4548 boot_order = qemu_opt_get(opts, "order");
4549 if (boot_order) {
4550 validate_bootdevices(boot_order, &error_fatal);
4551 }
4552
4553 boot_once = qemu_opt_get(opts, "once");
4554 if (boot_once) {
4555 validate_bootdevices(boot_once, &error_fatal);
4556 }
4557
4558 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4559 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4560 }
4561
4562 if (!boot_order) {
4563 boot_order = machine_class->default_boot_order;
4564 }
4565
4566 if (!kernel_cmdline) {
4567 kernel_cmdline = "";
4568 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4569 }
4570
4571 linux_boot = (kernel_filename != NULL);
4572
4573 if (!linux_boot && *kernel_cmdline != '\0') {
4574 error_report("-append only allowed with -kernel option");
4575 exit(1);
4576 }
4577
4578 if (!linux_boot && initrd_filename != NULL) {
4579 error_report("-initrd only allowed with -kernel option");
4580 exit(1);
4581 }
4582
4583 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4584 /* fall back to the -kernel/-append */
4585 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4586 }
4587
4588 os_set_line_buffering();
4589
4590 /* spice needs the timers to be initialized by this point */
4591 qemu_spice_init();
4592
4593 cpu_ticks_init();
4594 if (icount_opts) {
4595 if (!tcg_enabled()) {
4596 error_report("-icount is not allowed with hardware virtualization");
4597 exit(1);
4598 }
4599 configure_icount(icount_opts, &error_abort);
4600 qemu_opts_del(icount_opts);
4601 }
4602
4603 if (tcg_enabled()) {
4604 qemu_tcg_configure(accel_opts, &error_fatal);
4605 }
4606
4607 if (default_net) {
4608 QemuOptsList *net = qemu_find_opts("net");
4609 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4610 #ifdef CONFIG_SLIRP
4611 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4612 #endif
4613 }
4614
4615 colo_info_init();
4616
4617 if (net_init_clients() < 0) {
4618 exit(1);
4619 }
4620
4621 if (qemu_opts_foreach(qemu_find_opts("object"),
4622 user_creatable_add_opts_foreach,
4623 object_create_delayed, NULL)) {
4624 exit(1);
4625 }
4626
4627 #ifdef CONFIG_TPM
4628 if (tpm_init() < 0) {
4629 exit(1);
4630 }
4631 #endif
4632
4633 /* init the bluetooth world */
4634 if (foreach_device_config(DEV_BT, bt_parse))
4635 exit(1);
4636
4637 if (!xen_enabled()) {
4638 /* On 32-bit hosts, QEMU is limited by virtual address space */
4639 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4640 error_report("at most 2047 MB RAM can be simulated");
4641 exit(1);
4642 }
4643 }
4644
4645 blk_mig_init();
4646 ram_mig_init();
4647
4648 /* If the currently selected machine wishes to override the units-per-bus
4649 * property of its default HBA interface type, do so now. */
4650 if (machine_class->units_per_default_bus) {
4651 override_max_devs(machine_class->block_default_type,
4652 machine_class->units_per_default_bus);
4653 }
4654
4655 /* open the virtual block devices */
4656 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4657 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4658
4659 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4660 loc_push_restore(&bdo->loc);
4661 qmp_blockdev_add(bdo->bdo, &error_fatal);
4662 loc_pop(&bdo->loc);
4663 qapi_free_BlockdevOptions(bdo->bdo);
4664 g_free(bdo);
4665 }
4666 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4667 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4668 NULL, NULL);
4669 }
4670 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4671 &machine_class->block_default_type, NULL)) {
4672 exit(1);
4673 }
4674
4675 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4676 CDROM_OPTS);
4677 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4678 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4679
4680 parse_numa_opts(current_machine);
4681
4682 if (qemu_opts_foreach(qemu_find_opts("mon"),
4683 mon_init_func, NULL, NULL)) {
4684 exit(1);
4685 }
4686
4687 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4688 exit(1);
4689 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4690 exit(1);
4691 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4692 exit(1);
4693 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4694 exit(1);
4695 }
4696 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4697 exit(1);
4698
4699 /* If no default VGA is requested, the default is "none". */
4700 if (default_vga) {
4701 if (machine_class->default_display) {
4702 vga_model = machine_class->default_display;
4703 } else if (vga_interface_available(VGA_CIRRUS)) {
4704 vga_model = "cirrus";
4705 } else if (vga_interface_available(VGA_STD)) {
4706 vga_model = "std";
4707 }
4708 }
4709 if (vga_model) {
4710 select_vgahw(vga_model);
4711 }
4712
4713 if (watchdog) {
4714 i = select_watchdog(watchdog);
4715 if (i > 0)
4716 exit (i == 1 ? 1 : 0);
4717 }
4718
4719 /* This checkpoint is required by replay to separate prior clock
4720 reading from the other reads, because timer polling functions query
4721 clock values from the log. */
4722 replay_checkpoint(CHECKPOINT_INIT);
4723 qdev_machine_init();
4724
4725 current_machine->ram_size = ram_size;
4726 current_machine->maxram_size = maxram_size;
4727 current_machine->ram_slots = ram_slots;
4728 current_machine->boot_order = boot_order;
4729 current_machine->cpu_model = cpu_model;
4730
4731
4732 /* parse features once if machine provides default cpu_type */
4733 if (machine_class->default_cpu_type) {
4734 current_machine->cpu_type = machine_class->default_cpu_type;
4735 if (cpu_model) {
4736 current_machine->cpu_type =
4737 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4738 }
4739 }
4740
4741 machine_run_board_init(current_machine);
4742
4743 realtime_init();
4744
4745 soundhw_init();
4746
4747 if (hax_enabled()) {
4748 hax_sync_vcpus();
4749 }
4750
4751 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4752 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4753 exit(1);
4754 }
4755
4756 /* init USB devices */
4757 if (machine_usb(current_machine)) {
4758 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4759 exit(1);
4760 }
4761
4762 /* Check if IGD GFX passthrough. */
4763 igd_gfx_passthru();
4764
4765 /* init generic devices */
4766 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4767 if (qemu_opts_foreach(qemu_find_opts("device"),
4768 device_init_func, NULL, NULL)) {
4769 exit(1);
4770 }
4771
4772 cpu_synchronize_all_post_init();
4773
4774 rom_reset_order_override();
4775
4776 /*
4777 * Create frontends for -drive if=scsi leftovers.
4778 * Normally, frontends for -drive get created by machine
4779 * initialization for onboard SCSI HBAs. However, we create a few
4780 * more ever since SCSI qdevification, but this is pretty much an
4781 * implementation accident, and deprecated.
4782 */
4783 scsi_legacy_handle_cmdline();
4784
4785 /* Did we create any drives that we failed to create a device for? */
4786 drive_check_orphaned();
4787
4788 /* Don't warn about the default network setup that you get if
4789 * no command line -net or -netdev options are specified. There
4790 * are two cases that we would otherwise complain about:
4791 * (1) board doesn't support a NIC but the implicit "-net nic"
4792 * requested one
4793 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4794 * sets up a nic that isn't connected to anything.
4795 */
4796 if (!default_net) {
4797 net_check_clients();
4798 }
4799
4800
4801 if (boot_once) {
4802 qemu_boot_set(boot_once, &error_fatal);
4803 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4804 }
4805
4806 ds = init_displaystate();
4807
4808 /* init local displays */
4809 switch (display_type) {
4810 case DT_CURSES:
4811 curses_display_init(ds, full_screen);
4812 break;
4813 case DT_SDL:
4814 sdl_display_init(ds, full_screen, no_frame);
4815 break;
4816 case DT_COCOA:
4817 cocoa_display_init(ds, full_screen);
4818 break;
4819 case DT_GTK:
4820 gtk_display_init(ds, full_screen, grab_on_hover);
4821 break;
4822 default:
4823 break;
4824 }
4825
4826 /* must be after terminal init, SDL library changes signal handlers */
4827 os_setup_signal_handling();
4828
4829 /* init remote displays */
4830 #ifdef CONFIG_VNC
4831 qemu_opts_foreach(qemu_find_opts("vnc"),
4832 vnc_init_func, NULL, NULL);
4833 #endif
4834
4835 if (using_spice) {
4836 qemu_spice_display_init();
4837 }
4838
4839 #ifdef CONFIG_OPENGL_DMABUF
4840 if (display_type == DT_EGL) {
4841 egl_headless_init();
4842 }
4843 #endif
4844
4845 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4846 exit(1);
4847 }
4848
4849 qdev_machine_creation_done();
4850
4851 /* TODO: once all bus devices are qdevified, this should be done
4852 * when bus is created by qdev.c */
4853 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4854 qemu_run_machine_init_done_notifiers();
4855
4856 if (rom_check_and_register_reset() != 0) {
4857 error_report("rom check and register reset failed");
4858 exit(1);
4859 }
4860
4861 replay_start();
4862
4863 /* This checkpoint is required by replay to separate prior clock
4864 reading from the other reads, because timer polling functions query
4865 clock values from the log. */
4866 replay_checkpoint(CHECKPOINT_RESET);
4867 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4868 register_global_state();
4869 if (replay_mode != REPLAY_MODE_NONE) {
4870 replay_vmstate_init();
4871 } else if (loadvm) {
4872 Error *local_err = NULL;
4873 if (load_snapshot(loadvm, &local_err) < 0) {
4874 error_report_err(local_err);
4875 autostart = 0;
4876 }
4877 }
4878
4879 qdev_prop_check_globals();
4880 if (vmstate_dump_file) {
4881 /* dump and exit */
4882 dump_vmstate_json_to_file(vmstate_dump_file);
4883 return 0;
4884 }
4885
4886 if (incoming) {
4887 Error *local_err = NULL;
4888 qemu_start_incoming_migration(incoming, &local_err);
4889 if (local_err) {
4890 error_reportf_err(local_err, "-incoming %s: ", incoming);
4891 exit(1);
4892 }
4893 } else if (autostart) {
4894 vm_start();
4895 }
4896
4897 os_setup_post();
4898
4899 main_loop();
4900 replay_disable_events();
4901 iothread_stop_all();
4902
4903 pause_all_vcpus();
4904 bdrv_close_all();
4905 res_free();
4906
4907 /* vhost-user must be cleaned up before chardevs. */
4908 net_cleanup();
4909 audio_cleanup();
4910 monitor_cleanup();
4911 qemu_chr_cleanup();
4912 user_creatable_cleanup();
4913 /* TODO: unref root container, check all devices are ok */
4914
4915 return 0;
4916 }
QEmu