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qcow2: try load bitmaps only once
[qemu/kevin.git] / vl.c
blobfce1fd12d8b73ad45d072b5dd47aee88b310a88a
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
31
32 #ifdef CONFIG_SECCOMP
33 #include <sys/prctl.h>
34 #include "sysemu/seccomp.h"
35 #endif
36
37 #ifdef CONFIG_SDL
38 #if defined(__APPLE__) || defined(main)
39 #include <SDL.h>
40 int qemu_main(int argc, char **argv, char **envp);
41 int main(int argc, char **argv)
42 {
43 return qemu_main(argc, argv, NULL);
44 }
45 #undef main
46 #define main qemu_main
47 #endif
48 #endif /* CONFIG_SDL */
49
50 #ifdef CONFIG_COCOA
51 #undef main
52 #define main qemu_main
53 #endif /* CONFIG_COCOA */
54
55
56 #include "qemu/error-report.h"
57 #include "qemu/sockets.h"
58 #include "hw/hw.h"
59 #include "hw/boards.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "hw/bt.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/smbios/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
70 #include "hw/qdev.h"
71 #include "hw/loader.h"
72 #include "monitor/qdev.h"
73 #include "sysemu/bt.h"
74 #include "net/net.h"
75 #include "net/slirp.h"
76 #include "monitor/monitor.h"
77 #include "ui/console.h"
78 #include "ui/input.h"
79 #include "sysemu/sysemu.h"
80 #include "sysemu/numa.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "chardev/char.h"
84 #include "qemu/bitmap.h"
85 #include "qemu/log.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/misc.h"
89 #include "migration/snapshot.h"
90 #include "migration/global_state.h"
91 #include "sysemu/tpm.h"
92 #include "sysemu/dma.h"
93 #include "hw/audio/soundhw.h"
94 #include "audio/audio.h"
95 #include "sysemu/cpus.h"
96 #include "migration/colo.h"
97 #include "migration/postcopy-ram.h"
98 #include "sysemu/kvm.h"
99 #include "sysemu/hax.h"
100 #include "qapi/qobject-input-visitor.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qemu/main-loop.h"
105 #ifdef CONFIG_VIRTFS
106 #include "fsdev/qemu-fsdev.h"
107 #endif
108 #include "sysemu/qtest.h"
109
110 #include "disas/disas.h"
111
112
113 #include "slirp/libslirp.h"
114
115 #include "trace-root.h"
116 #include "trace/control.h"
117 #include "qemu/queue.h"
118 #include "sysemu/arch_init.h"
119
120 #include "ui/qemu-spice.h"
121 #include "qapi/string-input-visitor.h"
122 #include "qapi/opts-visitor.h"
123 #include "qom/object_interfaces.h"
124 #include "exec/semihost.h"
125 #include "crypto/init.h"
126 #include "sysemu/replay.h"
127 #include "qapi/qapi-events-run-state.h"
128 #include "qapi/qapi-visit-block-core.h"
129 #include "qapi/qapi-commands-block-core.h"
130 #include "qapi/qapi-commands-misc.h"
131 #include "qapi/qapi-commands-run-state.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134
135 #define MAX_VIRTIO_CONSOLES 1
136 #define MAX_SCLP_CONSOLES 1
137
138 static const char *data_dir[16];
139 static int data_dir_idx;
140 const char *bios_name = NULL;
141 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
142 int display_opengl;
143 const char* keyboard_layout = NULL;
144 ram_addr_t ram_size;
145 const char *mem_path = NULL;
146 int mem_prealloc = 0; /* force preallocation of physical target memory */
147 bool enable_mlock = false;
148 int nb_nics;
149 NICInfo nd_table[MAX_NICS];
150 int autostart;
151 static int rtc_utc = 1;
152 static int rtc_date_offset = -1; /* -1 means no change */
153 QEMUClockType rtc_clock;
154 int vga_interface_type = VGA_NONE;
155 static DisplayOptions dpy;
156 int no_frame;
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;
164 unsigned int max_cpus;
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
1456 if (!machine_usb(current_machine)) {
1457 return -1;
1458 }
1459
1460 dev = usbdevice_create(devname);
1461 if (!dev)
1462 return -1;
1463
1464 return 0;
1465 }
1466
1467 static int usb_parse(const char *cmdline)
1468 {
1469 int r;
1470 r = usb_device_add(cmdline);
1471 if (r < 0) {
1472 error_report("could not add USB device '%s'", cmdline);
1473 }
1474 return r;
1475 }
1476
1477 /***********************************************************/
1478 /* machine registration */
1479
1480 MachineState *current_machine;
1481
1482 static MachineClass *find_machine(const char *name)
1483 {
1484 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1485 MachineClass *mc = NULL;
1486
1487 for (el = machines; el; el = el->next) {
1488 MachineClass *temp = el->data;
1489
1490 if (!strcmp(temp->name, name)) {
1491 mc = temp;
1492 break;
1493 }
1494 if (temp->alias &&
1495 !strcmp(temp->alias, name)) {
1496 mc = temp;
1497 break;
1498 }
1499 }
1500
1501 g_slist_free(machines);
1502 return mc;
1503 }
1504
1505 MachineClass *find_default_machine(void)
1506 {
1507 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1508 MachineClass *mc = NULL;
1509
1510 for (el = machines; el; el = el->next) {
1511 MachineClass *temp = el->data;
1512
1513 if (temp->is_default) {
1514 mc = temp;
1515 break;
1516 }
1517 }
1518
1519 g_slist_free(machines);
1520 return mc;
1521 }
1522
1523 MachineInfoList *qmp_query_machines(Error **errp)
1524 {
1525 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1526 MachineInfoList *mach_list = NULL;
1527
1528 for (el = machines; el; el = el->next) {
1529 MachineClass *mc = el->data;
1530 MachineInfoList *entry;
1531 MachineInfo *info;
1532
1533 info = g_malloc0(sizeof(*info));
1534 if (mc->is_default) {
1535 info->has_is_default = true;
1536 info->is_default = true;
1537 }
1538
1539 if (mc->alias) {
1540 info->has_alias = true;
1541 info->alias = g_strdup(mc->alias);
1542 }
1543
1544 info->name = g_strdup(mc->name);
1545 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1546 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1547
1548 entry = g_malloc0(sizeof(*entry));
1549 entry->value = info;
1550 entry->next = mach_list;
1551 mach_list = entry;
1552 }
1553
1554 g_slist_free(machines);
1555 return mach_list;
1556 }
1557
1558 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1559 {
1560 ObjectProperty *prop;
1561 ObjectPropertyIterator iter;
1562
1563 if (!qemu_opt_has_help_opt(opts)) {
1564 return 0;
1565 }
1566
1567 object_property_iter_init(&iter, OBJECT(machine));
1568 while ((prop = object_property_iter_next(&iter))) {
1569 if (!prop->set) {
1570 continue;
1571 }
1572
1573 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1574 prop->name, prop->type);
1575 if (prop->description) {
1576 error_printf(" (%s)\n", prop->description);
1577 } else {
1578 error_printf("\n");
1579 }
1580 }
1581
1582 return 1;
1583 }
1584
1585 /***********************************************************/
1586 /* main execution loop */
1587
1588 struct vm_change_state_entry {
1589 VMChangeStateHandler *cb;
1590 void *opaque;
1591 QLIST_ENTRY (vm_change_state_entry) entries;
1592 };
1593
1594 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1595
1596 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1597 void *opaque)
1598 {
1599 VMChangeStateEntry *e;
1600
1601 e = g_malloc0(sizeof (*e));
1602
1603 e->cb = cb;
1604 e->opaque = opaque;
1605 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1606 return e;
1607 }
1608
1609 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1610 {
1611 QLIST_REMOVE (e, entries);
1612 g_free (e);
1613 }
1614
1615 void vm_state_notify(int running, RunState state)
1616 {
1617 VMChangeStateEntry *e, *next;
1618
1619 trace_vm_state_notify(running, state);
1620
1621 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1622 e->cb(e->opaque, running, state);
1623 }
1624 }
1625
1626 static ShutdownCause reset_requested;
1627 static ShutdownCause shutdown_requested;
1628 static int shutdown_signal;
1629 static pid_t shutdown_pid;
1630 static int powerdown_requested;
1631 static int debug_requested;
1632 static int suspend_requested;
1633 static WakeupReason wakeup_reason;
1634 static NotifierList powerdown_notifiers =
1635 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1636 static NotifierList suspend_notifiers =
1637 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1638 static NotifierList wakeup_notifiers =
1639 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1640 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1641
1642 ShutdownCause qemu_shutdown_requested_get(void)
1643 {
1644 return shutdown_requested;
1645 }
1646
1647 ShutdownCause qemu_reset_requested_get(void)
1648 {
1649 return reset_requested;
1650 }
1651
1652 static int qemu_shutdown_requested(void)
1653 {
1654 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1655 }
1656
1657 static void qemu_kill_report(void)
1658 {
1659 if (!qtest_driver() && shutdown_signal) {
1660 if (shutdown_pid == 0) {
1661 /* This happens for eg ^C at the terminal, so it's worth
1662 * avoiding printing an odd message in that case.
1663 */
1664 error_report("terminating on signal %d", shutdown_signal);
1665 } else {
1666 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1667
1668 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1669 shutdown_signal, shutdown_pid,
1670 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1671 g_free(shutdown_cmd);
1672 }
1673 shutdown_signal = 0;
1674 }
1675 }
1676
1677 static ShutdownCause qemu_reset_requested(void)
1678 {
1679 ShutdownCause r = reset_requested;
1680
1681 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1682 reset_requested = SHUTDOWN_CAUSE_NONE;
1683 return r;
1684 }
1685 return SHUTDOWN_CAUSE_NONE;
1686 }
1687
1688 static int qemu_suspend_requested(void)
1689 {
1690 int r = suspend_requested;
1691 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1692 suspend_requested = 0;
1693 return r;
1694 }
1695 return false;
1696 }
1697
1698 static WakeupReason qemu_wakeup_requested(void)
1699 {
1700 return wakeup_reason;
1701 }
1702
1703 static int qemu_powerdown_requested(void)
1704 {
1705 int r = powerdown_requested;
1706 powerdown_requested = 0;
1707 return r;
1708 }
1709
1710 static int qemu_debug_requested(void)
1711 {
1712 int r = debug_requested;
1713 debug_requested = 0;
1714 return r;
1715 }
1716
1717 /*
1718 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1719 */
1720 void qemu_system_reset(ShutdownCause reason)
1721 {
1722 MachineClass *mc;
1723
1724 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1725
1726 cpu_synchronize_all_states();
1727
1728 if (mc && mc->reset) {
1729 mc->reset();
1730 } else {
1731 qemu_devices_reset();
1732 }
1733 if (reason) {
1734 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1735 &error_abort);
1736 }
1737 cpu_synchronize_all_post_reset();
1738 }
1739
1740 void qemu_system_guest_panicked(GuestPanicInformation *info)
1741 {
1742 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1743
1744 if (current_cpu) {
1745 current_cpu->crash_occurred = true;
1746 }
1747 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1748 !!info, info, &error_abort);
1749 vm_stop(RUN_STATE_GUEST_PANICKED);
1750 if (!no_shutdown) {
1751 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1752 !!info, info, &error_abort);
1753 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1754 }
1755
1756 if (info) {
1757 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1758 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1759 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1760 info->u.hyper_v.arg1,
1761 info->u.hyper_v.arg2,
1762 info->u.hyper_v.arg3,
1763 info->u.hyper_v.arg4,
1764 info->u.hyper_v.arg5);
1765 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1766 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1767 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1768 info->u.s390.core,
1769 S390CrashReason_str(info->u.s390.reason),
1770 info->u.s390.psw_mask,
1771 info->u.s390.psw_addr);
1772 }
1773 qapi_free_GuestPanicInformation(info);
1774 }
1775 }
1776
1777 void qemu_system_reset_request(ShutdownCause reason)
1778 {
1779 if (no_reboot) {
1780 shutdown_requested = reason;
1781 } else {
1782 reset_requested = reason;
1783 }
1784 cpu_stop_current();
1785 qemu_notify_event();
1786 }
1787
1788 static void qemu_system_suspend(void)
1789 {
1790 pause_all_vcpus();
1791 notifier_list_notify(&suspend_notifiers, NULL);
1792 runstate_set(RUN_STATE_SUSPENDED);
1793 qapi_event_send_suspend(&error_abort);
1794 }
1795
1796 void qemu_system_suspend_request(void)
1797 {
1798 if (runstate_check(RUN_STATE_SUSPENDED)) {
1799 return;
1800 }
1801 suspend_requested = 1;
1802 cpu_stop_current();
1803 qemu_notify_event();
1804 }
1805
1806 void qemu_register_suspend_notifier(Notifier *notifier)
1807 {
1808 notifier_list_add(&suspend_notifiers, notifier);
1809 }
1810
1811 void qemu_system_wakeup_request(WakeupReason reason)
1812 {
1813 trace_system_wakeup_request(reason);
1814
1815 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1816 return;
1817 }
1818 if (!(wakeup_reason_mask & (1 << reason))) {
1819 return;
1820 }
1821 runstate_set(RUN_STATE_RUNNING);
1822 wakeup_reason = reason;
1823 qemu_notify_event();
1824 }
1825
1826 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1827 {
1828 if (enabled) {
1829 wakeup_reason_mask |= (1 << reason);
1830 } else {
1831 wakeup_reason_mask &= ~(1 << reason);
1832 }
1833 }
1834
1835 void qemu_register_wakeup_notifier(Notifier *notifier)
1836 {
1837 notifier_list_add(&wakeup_notifiers, notifier);
1838 }
1839
1840 void qemu_system_killed(int signal, pid_t pid)
1841 {
1842 shutdown_signal = signal;
1843 shutdown_pid = pid;
1844 no_shutdown = 0;
1845
1846 /* Cannot call qemu_system_shutdown_request directly because
1847 * we are in a signal handler.
1848 */
1849 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1850 qemu_notify_event();
1851 }
1852
1853 void qemu_system_shutdown_request(ShutdownCause reason)
1854 {
1855 trace_qemu_system_shutdown_request(reason);
1856 replay_shutdown_request(reason);
1857 shutdown_requested = reason;
1858 qemu_notify_event();
1859 }
1860
1861 static void qemu_system_powerdown(void)
1862 {
1863 qapi_event_send_powerdown(&error_abort);
1864 notifier_list_notify(&powerdown_notifiers, NULL);
1865 }
1866
1867 void qemu_system_powerdown_request(void)
1868 {
1869 trace_qemu_system_powerdown_request();
1870 powerdown_requested = 1;
1871 qemu_notify_event();
1872 }
1873
1874 void qemu_register_powerdown_notifier(Notifier *notifier)
1875 {
1876 notifier_list_add(&powerdown_notifiers, notifier);
1877 }
1878
1879 void qemu_system_debug_request(void)
1880 {
1881 debug_requested = 1;
1882 qemu_notify_event();
1883 }
1884
1885 static bool main_loop_should_exit(void)
1886 {
1887 RunState r;
1888 ShutdownCause request;
1889
1890 if (qemu_debug_requested()) {
1891 vm_stop(RUN_STATE_DEBUG);
1892 }
1893 if (qemu_suspend_requested()) {
1894 qemu_system_suspend();
1895 }
1896 request = qemu_shutdown_requested();
1897 if (request) {
1898 qemu_kill_report();
1899 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1900 &error_abort);
1901 if (no_shutdown) {
1902 vm_stop(RUN_STATE_SHUTDOWN);
1903 } else {
1904 return true;
1905 }
1906 }
1907 request = qemu_reset_requested();
1908 if (request) {
1909 pause_all_vcpus();
1910 qemu_system_reset(request);
1911 resume_all_vcpus();
1912 if (!runstate_check(RUN_STATE_RUNNING) &&
1913 !runstate_check(RUN_STATE_INMIGRATE)) {
1914 runstate_set(RUN_STATE_PRELAUNCH);
1915 }
1916 }
1917 if (qemu_wakeup_requested()) {
1918 pause_all_vcpus();
1919 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1920 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1921 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1922 resume_all_vcpus();
1923 qapi_event_send_wakeup(&error_abort);
1924 }
1925 if (qemu_powerdown_requested()) {
1926 qemu_system_powerdown();
1927 }
1928 if (qemu_vmstop_requested(&r)) {
1929 vm_stop(r);
1930 }
1931 return false;
1932 }
1933
1934 static void main_loop(void)
1935 {
1936 #ifdef CONFIG_PROFILER
1937 int64_t ti;
1938 #endif
1939 do {
1940 #ifdef CONFIG_PROFILER
1941 ti = profile_getclock();
1942 #endif
1943 main_loop_wait(false);
1944 #ifdef CONFIG_PROFILER
1945 dev_time += profile_getclock() - ti;
1946 #endif
1947 } while (!main_loop_should_exit());
1948 }
1949
1950 static void version(void)
1951 {
1952 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1953 QEMU_COPYRIGHT "\n");
1954 }
1955
1956 static void help(int exitcode)
1957 {
1958 version();
1959 printf("usage: %s [options] [disk_image]\n\n"
1960 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1961 error_get_progname());
1962
1963 #define QEMU_OPTIONS_GENERATE_HELP
1964 #include "qemu-options-wrapper.h"
1965
1966 printf("\nDuring emulation, the following keys are useful:\n"
1967 "ctrl-alt-f toggle full screen\n"
1968 "ctrl-alt-n switch to virtual console 'n'\n"
1969 "ctrl-alt toggle mouse and keyboard grab\n"
1970 "\n"
1971 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1972 "\n"
1973 QEMU_HELP_BOTTOM "\n");
1974
1975 exit(exitcode);
1976 }
1977
1978 #define HAS_ARG 0x0001
1979
1980 typedef struct QEMUOption {
1981 const char *name;
1982 int flags;
1983 int index;
1984 uint32_t arch_mask;
1985 } QEMUOption;
1986
1987 static const QEMUOption qemu_options[] = {
1988 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1989 #define QEMU_OPTIONS_GENERATE_OPTIONS
1990 #include "qemu-options-wrapper.h"
1991 { NULL },
1992 };
1993
1994 typedef struct VGAInterfaceInfo {
1995 const char *opt_name; /* option name */
1996 const char *name; /* human-readable name */
1997 /* Class names indicating that support is available.
1998 * If no class is specified, the interface is always available */
1999 const char *class_names[2];
2000 } VGAInterfaceInfo;
2001
2002 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2003 [VGA_NONE] = {
2004 .opt_name = "none",
2005 },
2006 [VGA_STD] = {
2007 .opt_name = "std",
2008 .name = "standard VGA",
2009 .class_names = { "VGA", "isa-vga" },
2010 },
2011 [VGA_CIRRUS] = {
2012 .opt_name = "cirrus",
2013 .name = "Cirrus VGA",
2014 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2015 },
2016 [VGA_VMWARE] = {
2017 .opt_name = "vmware",
2018 .name = "VMWare SVGA",
2019 .class_names = { "vmware-svga" },
2020 },
2021 [VGA_VIRTIO] = {
2022 .opt_name = "virtio",
2023 .name = "Virtio VGA",
2024 .class_names = { "virtio-vga" },
2025 },
2026 [VGA_QXL] = {
2027 .opt_name = "qxl",
2028 .name = "QXL VGA",
2029 .class_names = { "qxl-vga" },
2030 },
2031 [VGA_TCX] = {
2032 .opt_name = "tcx",
2033 .name = "TCX framebuffer",
2034 .class_names = { "SUNW,tcx" },
2035 },
2036 [VGA_CG3] = {
2037 .opt_name = "cg3",
2038 .name = "CG3 framebuffer",
2039 .class_names = { "cgthree" },
2040 },
2041 [VGA_XENFB] = {
2042 .opt_name = "xenfb",
2043 },
2044 };
2045
2046 static bool vga_interface_available(VGAInterfaceType t)
2047 {
2048 VGAInterfaceInfo *ti = &vga_interfaces[t];
2049
2050 assert(t < VGA_TYPE_MAX);
2051 return !ti->class_names[0] ||
2052 object_class_by_name(ti->class_names[0]) ||
2053 object_class_by_name(ti->class_names[1]);
2054 }
2055
2056 static void select_vgahw(const char *p)
2057 {
2058 const char *opts;
2059 int t;
2060
2061 assert(vga_interface_type == VGA_NONE);
2062 for (t = 0; t < VGA_TYPE_MAX; t++) {
2063 VGAInterfaceInfo *ti = &vga_interfaces[t];
2064 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2065 if (!vga_interface_available(t)) {
2066 error_report("%s not available", ti->name);
2067 exit(1);
2068 }
2069 vga_interface_type = t;
2070 break;
2071 }
2072 }
2073 if (t == VGA_TYPE_MAX) {
2074 invalid_vga:
2075 error_report("unknown vga type: %s", p);
2076 exit(1);
2077 }
2078 while (*opts) {
2079 const char *nextopt;
2080
2081 if (strstart(opts, ",retrace=", &nextopt)) {
2082 opts = nextopt;
2083 if (strstart(opts, "dumb", &nextopt))
2084 vga_retrace_method = VGA_RETRACE_DUMB;
2085 else if (strstart(opts, "precise", &nextopt))
2086 vga_retrace_method = VGA_RETRACE_PRECISE;
2087 else goto invalid_vga;
2088 } else goto invalid_vga;
2089 opts = nextopt;
2090 }
2091 }
2092
2093 static void parse_display(const char *p)
2094 {
2095 const char *opts;
2096
2097 if (strstart(p, "sdl", &opts)) {
2098 dpy.type = DISPLAY_TYPE_SDL;
2099 while (*opts) {
2100 const char *nextopt;
2101
2102 if (strstart(opts, ",frame=", &nextopt)) {
2103 g_printerr("The frame= sdl option is deprecated, and will be\n"
2104 "removed in a future release.\n");
2105 opts = nextopt;
2106 if (strstart(opts, "on", &nextopt)) {
2107 no_frame = 0;
2108 } else if (strstart(opts, "off", &nextopt)) {
2109 no_frame = 1;
2110 } else {
2111 goto invalid_sdl_args;
2112 }
2113 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2114 opts = nextopt;
2115 if (strstart(opts, "on", &nextopt)) {
2116 alt_grab = 1;
2117 } else if (strstart(opts, "off", &nextopt)) {
2118 alt_grab = 0;
2119 } else {
2120 goto invalid_sdl_args;
2121 }
2122 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2123 opts = nextopt;
2124 if (strstart(opts, "on", &nextopt)) {
2125 ctrl_grab = 1;
2126 } else if (strstart(opts, "off", &nextopt)) {
2127 ctrl_grab = 0;
2128 } else {
2129 goto invalid_sdl_args;
2130 }
2131 } else if (strstart(opts, ",window_close=", &nextopt)) {
2132 opts = nextopt;
2133 dpy.has_window_close = true;
2134 if (strstart(opts, "on", &nextopt)) {
2135 dpy.window_close = true;
2136 } else if (strstart(opts, "off", &nextopt)) {
2137 dpy.window_close = false;
2138 } else {
2139 goto invalid_sdl_args;
2140 }
2141 } else if (strstart(opts, ",gl=", &nextopt)) {
2142 opts = nextopt;
2143 dpy.has_gl = true;
2144 if (strstart(opts, "on", &nextopt)) {
2145 dpy.gl = true;
2146 } else if (strstart(opts, "off", &nextopt)) {
2147 dpy.gl = false;
2148 } else {
2149 goto invalid_sdl_args;
2150 }
2151 } else {
2152 invalid_sdl_args:
2153 error_report("invalid SDL option string");
2154 exit(1);
2155 }
2156 opts = nextopt;
2157 }
2158 } else if (strstart(p, "vnc", &opts)) {
2159 if (*opts == '=') {
2160 vnc_parse(opts + 1, &error_fatal);
2161 } else {
2162 error_report("VNC requires a display argument vnc=<display>");
2163 exit(1);
2164 }
2165 } else if (strstart(p, "egl-headless", &opts)) {
2166 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2167 } else if (strstart(p, "curses", &opts)) {
2168 dpy.type = DISPLAY_TYPE_CURSES;
2169 } else if (strstart(p, "gtk", &opts)) {
2170 dpy.type = DISPLAY_TYPE_GTK;
2171 while (*opts) {
2172 const char *nextopt;
2173
2174 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2175 opts = nextopt;
2176 dpy.u.gtk.has_grab_on_hover = true;
2177 if (strstart(opts, "on", &nextopt)) {
2178 dpy.u.gtk.grab_on_hover = true;
2179 } else if (strstart(opts, "off", &nextopt)) {
2180 dpy.u.gtk.grab_on_hover = false;
2181 } else {
2182 goto invalid_gtk_args;
2183 }
2184 } else if (strstart(opts, ",gl=", &nextopt)) {
2185 opts = nextopt;
2186 dpy.has_gl = true;
2187 if (strstart(opts, "on", &nextopt)) {
2188 dpy.gl = true;
2189 } else if (strstart(opts, "off", &nextopt)) {
2190 dpy.gl = false;
2191 } else {
2192 goto invalid_gtk_args;
2193 }
2194 } else {
2195 invalid_gtk_args:
2196 error_report("invalid GTK option string");
2197 exit(1);
2198 }
2199 opts = nextopt;
2200 }
2201 } else if (strstart(p, "none", &opts)) {
2202 dpy.type = DISPLAY_TYPE_NONE;
2203 } else {
2204 error_report("unknown display type");
2205 exit(1);
2206 }
2207 }
2208
2209 static int balloon_parse(const char *arg)
2210 {
2211 QemuOpts *opts;
2212
2213 warn_report("This option is deprecated. "
2214 "Use '--device virtio-balloon' to enable the balloon device.");
2215
2216 if (strcmp(arg, "none") == 0) {
2217 return 0;
2218 }
2219
2220 if (!strncmp(arg, "virtio", 6)) {
2221 if (arg[6] == ',') {
2222 /* have params -> parse them */
2223 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2224 false);
2225 if (!opts)
2226 return -1;
2227 } else {
2228 /* create empty opts */
2229 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2230 &error_abort);
2231 }
2232 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2233 return 0;
2234 }
2235
2236 return -1;
2237 }
2238
2239 char *qemu_find_file(int type, const char *name)
2240 {
2241 int i;
2242 const char *subdir;
2243 char *buf;
2244
2245 /* Try the name as a straight path first */
2246 if (access(name, R_OK) == 0) {
2247 trace_load_file(name, name);
2248 return g_strdup(name);
2249 }
2250
2251 switch (type) {
2252 case QEMU_FILE_TYPE_BIOS:
2253 subdir = "";
2254 break;
2255 case QEMU_FILE_TYPE_KEYMAP:
2256 subdir = "keymaps/";
2257 break;
2258 default:
2259 abort();
2260 }
2261
2262 for (i = 0; i < data_dir_idx; i++) {
2263 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2264 if (access(buf, R_OK) == 0) {
2265 trace_load_file(name, buf);
2266 return buf;
2267 }
2268 g_free(buf);
2269 }
2270 return NULL;
2271 }
2272
2273 static void qemu_add_data_dir(const char *path)
2274 {
2275 int i;
2276
2277 if (path == NULL) {
2278 return;
2279 }
2280 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2281 return;
2282 }
2283 for (i = 0; i < data_dir_idx; i++) {
2284 if (strcmp(data_dir[i], path) == 0) {
2285 return; /* duplicate */
2286 }
2287 }
2288 data_dir[data_dir_idx++] = g_strdup(path);
2289 }
2290
2291 static inline bool nonempty_str(const char *str)
2292 {
2293 return str && *str;
2294 }
2295
2296 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2297 {
2298 gchar *buf;
2299 size_t size;
2300 const char *name, *file, *str;
2301 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2302
2303 if (fw_cfg == NULL) {
2304 error_report("fw_cfg device not available");
2305 return -1;
2306 }
2307 name = qemu_opt_get(opts, "name");
2308 file = qemu_opt_get(opts, "file");
2309 str = qemu_opt_get(opts, "string");
2310
2311 /* we need name and either a file or the content string */
2312 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2313 error_report("invalid argument(s)");
2314 return -1;
2315 }
2316 if (nonempty_str(file) && nonempty_str(str)) {
2317 error_report("file and string are mutually exclusive");
2318 return -1;
2319 }
2320 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2321 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2322 return -1;
2323 }
2324 if (strncmp(name, "opt/", 4) != 0) {
2325 warn_report("externally provided fw_cfg item names "
2326 "should be prefixed with \"opt/\"");
2327 }
2328 if (nonempty_str(str)) {
2329 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2330 buf = g_memdup(str, size);
2331 } else {
2332 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2333 error_report("can't load %s", file);
2334 return -1;
2335 }
2336 }
2337 /* For legacy, keep user files in a specific global order. */
2338 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2339 fw_cfg_add_file(fw_cfg, name, buf, size);
2340 fw_cfg_reset_order_override(fw_cfg);
2341 return 0;
2342 }
2343
2344 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2345 {
2346 return qdev_device_help(opts);
2347 }
2348
2349 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2350 {
2351 Error *err = NULL;
2352 DeviceState *dev;
2353
2354 dev = qdev_device_add(opts, &err);
2355 if (!dev) {
2356 error_report_err(err);
2357 return -1;
2358 }
2359 object_unref(OBJECT(dev));
2360 return 0;
2361 }
2362
2363 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2364 {
2365 Error *local_err = NULL;
2366
2367 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2368 if (local_err) {
2369 error_report_err(local_err);
2370 return -1;
2371 }
2372 exit(0);
2373 }
2374 return 0;
2375 }
2376
2377 #ifdef CONFIG_VIRTFS
2378 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2379 {
2380 return qemu_fsdev_add(opts);
2381 }
2382 #endif
2383
2384 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2385 {
2386 Chardev *chr;
2387 const char *chardev;
2388 const char *mode;
2389 int flags;
2390
2391 mode = qemu_opt_get(opts, "mode");
2392 if (mode == NULL) {
2393 mode = "readline";
2394 }
2395 if (strcmp(mode, "readline") == 0) {
2396 flags = MONITOR_USE_READLINE;
2397 } else if (strcmp(mode, "control") == 0) {
2398 flags = MONITOR_USE_CONTROL;
2399 } else {
2400 error_report("unknown monitor mode \"%s\"", mode);
2401 exit(1);
2402 }
2403
2404 if (qemu_opt_get_bool(opts, "pretty", 0))
2405 flags |= MONITOR_USE_PRETTY;
2406
2407 /* OOB is off by default */
2408 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2409 flags |= MONITOR_USE_OOB;
2410 }
2411
2412 chardev = qemu_opt_get(opts, "chardev");
2413 chr = qemu_chr_find(chardev);
2414 if (chr == NULL) {
2415 error_report("chardev \"%s\" not found", chardev);
2416 exit(1);
2417 }
2418
2419 monitor_init(chr, flags);
2420 return 0;
2421 }
2422
2423 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2424 {
2425 static int monitor_device_index = 0;
2426 QemuOpts *opts;
2427 const char *p;
2428 char label[32];
2429
2430 if (strstart(optarg, "chardev:", &p)) {
2431 snprintf(label, sizeof(label), "%s", p);
2432 } else {
2433 snprintf(label, sizeof(label), "compat_monitor%d",
2434 monitor_device_index);
2435 opts = qemu_chr_parse_compat(label, optarg);
2436 if (!opts) {
2437 error_report("parse error: %s", optarg);
2438 exit(1);
2439 }
2440 }
2441
2442 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2443 qemu_opt_set(opts, "mode", mode, &error_abort);
2444 qemu_opt_set(opts, "chardev", label, &error_abort);
2445 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2446 monitor_device_index++;
2447 }
2448
2449 struct device_config {
2450 enum {
2451 DEV_USB, /* -usbdevice */
2452 DEV_BT, /* -bt */
2453 DEV_SERIAL, /* -serial */
2454 DEV_PARALLEL, /* -parallel */
2455 DEV_VIRTCON, /* -virtioconsole */
2456 DEV_DEBUGCON, /* -debugcon */
2457 DEV_GDB, /* -gdb, -s */
2458 DEV_SCLP, /* s390 sclp */
2459 } type;
2460 const char *cmdline;
2461 Location loc;
2462 QTAILQ_ENTRY(device_config) next;
2463 };
2464
2465 static QTAILQ_HEAD(, device_config) device_configs =
2466 QTAILQ_HEAD_INITIALIZER(device_configs);
2467
2468 static void add_device_config(int type, const char *cmdline)
2469 {
2470 struct device_config *conf;
2471
2472 conf = g_malloc0(sizeof(*conf));
2473 conf->type = type;
2474 conf->cmdline = cmdline;
2475 loc_save(&conf->loc);
2476 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2477 }
2478
2479 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2480 {
2481 struct device_config *conf;
2482 int rc;
2483
2484 QTAILQ_FOREACH(conf, &device_configs, next) {
2485 if (conf->type != type)
2486 continue;
2487 loc_push_restore(&conf->loc);
2488 rc = func(conf->cmdline);
2489 loc_pop(&conf->loc);
2490 if (rc) {
2491 return rc;
2492 }
2493 }
2494 return 0;
2495 }
2496
2497 static int serial_parse(const char *devname)
2498 {
2499 static int index = 0;
2500 char label[32];
2501
2502 if (strcmp(devname, "none") == 0)
2503 return 0;
2504 if (index == MAX_SERIAL_PORTS) {
2505 error_report("too many serial ports");
2506 exit(1);
2507 }
2508 snprintf(label, sizeof(label), "serial%d", index);
2509 serial_hds[index] = qemu_chr_new(label, devname);
2510 if (!serial_hds[index]) {
2511 error_report("could not connect serial device"
2512 " to character backend '%s'", devname);
2513 return -1;
2514 }
2515 index++;
2516 return 0;
2517 }
2518
2519 static int parallel_parse(const char *devname)
2520 {
2521 static int index = 0;
2522 char label[32];
2523
2524 if (strcmp(devname, "none") == 0)
2525 return 0;
2526 if (index == MAX_PARALLEL_PORTS) {
2527 error_report("too many parallel ports");
2528 exit(1);
2529 }
2530 snprintf(label, sizeof(label), "parallel%d", index);
2531 parallel_hds[index] = qemu_chr_new(label, devname);
2532 if (!parallel_hds[index]) {
2533 error_report("could not connect parallel device"
2534 " to character backend '%s'", devname);
2535 return -1;
2536 }
2537 index++;
2538 return 0;
2539 }
2540
2541 static int virtcon_parse(const char *devname)
2542 {
2543 QemuOptsList *device = qemu_find_opts("device");
2544 static int index = 0;
2545 char label[32];
2546 QemuOpts *bus_opts, *dev_opts;
2547
2548 if (strcmp(devname, "none") == 0)
2549 return 0;
2550 if (index == MAX_VIRTIO_CONSOLES) {
2551 error_report("too many virtio consoles");
2552 exit(1);
2553 }
2554
2555 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2556 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2557
2558 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2559 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2560
2561 snprintf(label, sizeof(label), "virtcon%d", index);
2562 virtcon_hds[index] = qemu_chr_new(label, devname);
2563 if (!virtcon_hds[index]) {
2564 error_report("could not connect virtio console"
2565 " to character backend '%s'", devname);
2566 return -1;
2567 }
2568 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2569
2570 index++;
2571 return 0;
2572 }
2573
2574 static int sclp_parse(const char *devname)
2575 {
2576 QemuOptsList *device = qemu_find_opts("device");
2577 static int index = 0;
2578 char label[32];
2579 QemuOpts *dev_opts;
2580
2581 if (strcmp(devname, "none") == 0) {
2582 return 0;
2583 }
2584 if (index == MAX_SCLP_CONSOLES) {
2585 error_report("too many sclp consoles");
2586 exit(1);
2587 }
2588
2589 assert(arch_type == QEMU_ARCH_S390X);
2590
2591 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2592 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2593
2594 snprintf(label, sizeof(label), "sclpcon%d", index);
2595 sclp_hds[index] = qemu_chr_new(label, devname);
2596 if (!sclp_hds[index]) {
2597 error_report("could not connect sclp console"
2598 " to character backend '%s'", devname);
2599 return -1;
2600 }
2601 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2602
2603 index++;
2604 return 0;
2605 }
2606
2607 static int debugcon_parse(const char *devname)
2608 {
2609 QemuOpts *opts;
2610
2611 if (!qemu_chr_new("debugcon", devname)) {
2612 exit(1);
2613 }
2614 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2615 if (!opts) {
2616 error_report("already have a debugcon device");
2617 exit(1);
2618 }
2619 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2620 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2621 return 0;
2622 }
2623
2624 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2625 {
2626 const MachineClass *mc1 = a, *mc2 = b;
2627 int res;
2628
2629 if (mc1->family == NULL) {
2630 if (mc2->family == NULL) {
2631 /* Compare standalone machine types against each other; they sort
2632 * in increasing order.
2633 */
2634 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2635 object_class_get_name(OBJECT_CLASS(mc2)));
2636 }
2637
2638 /* Standalone machine types sort after families. */
2639 return 1;
2640 }
2641
2642 if (mc2->family == NULL) {
2643 /* Families sort before standalone machine types. */
2644 return -1;
2645 }
2646
2647 /* Families sort between each other alphabetically increasingly. */
2648 res = strcmp(mc1->family, mc2->family);
2649 if (res != 0) {
2650 return res;
2651 }
2652
2653 /* Within the same family, machine types sort in decreasing order. */
2654 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2655 object_class_get_name(OBJECT_CLASS(mc1)));
2656 }
2657
2658 static MachineClass *machine_parse(const char *name)
2659 {
2660 MachineClass *mc = NULL;
2661 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2662
2663 if (name) {
2664 mc = find_machine(name);
2665 }
2666 if (mc) {
2667 g_slist_free(machines);
2668 return mc;
2669 }
2670 if (name && !is_help_option(name)) {
2671 error_report("unsupported machine type");
2672 error_printf("Use -machine help to list supported machines\n");
2673 } else {
2674 printf("Supported machines are:\n");
2675 machines = g_slist_sort(machines, machine_class_cmp);
2676 for (el = machines; el; el = el->next) {
2677 MachineClass *mc = el->data;
2678 if (mc->alias) {
2679 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2680 }
2681 printf("%-20s %s%s\n", mc->name, mc->desc,
2682 mc->is_default ? " (default)" : "");
2683 }
2684 }
2685
2686 g_slist_free(machines);
2687 exit(!name || !is_help_option(name));
2688 }
2689
2690 void qemu_add_exit_notifier(Notifier *notify)
2691 {
2692 notifier_list_add(&exit_notifiers, notify);
2693 }
2694
2695 void qemu_remove_exit_notifier(Notifier *notify)
2696 {
2697 notifier_remove(notify);
2698 }
2699
2700 static void qemu_run_exit_notifiers(void)
2701 {
2702 notifier_list_notify(&exit_notifiers, NULL);
2703 }
2704
2705 bool machine_init_done;
2706
2707 void qemu_add_machine_init_done_notifier(Notifier *notify)
2708 {
2709 notifier_list_add(&machine_init_done_notifiers, notify);
2710 if (machine_init_done) {
2711 notify->notify(notify, NULL);
2712 }
2713 }
2714
2715 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2716 {
2717 notifier_remove(notify);
2718 }
2719
2720 static void qemu_run_machine_init_done_notifiers(void)
2721 {
2722 machine_init_done = true;
2723 notifier_list_notify(&machine_init_done_notifiers, NULL);
2724 }
2725
2726 static const QEMUOption *lookup_opt(int argc, char **argv,
2727 const char **poptarg, int *poptind)
2728 {
2729 const QEMUOption *popt;
2730 int optind = *poptind;
2731 char *r = argv[optind];
2732 const char *optarg;
2733
2734 loc_set_cmdline(argv, optind, 1);
2735 optind++;
2736 /* Treat --foo the same as -foo. */
2737 if (r[1] == '-')
2738 r++;
2739 popt = qemu_options;
2740 for(;;) {
2741 if (!popt->name) {
2742 error_report("invalid option");
2743 exit(1);
2744 }
2745 if (!strcmp(popt->name, r + 1))
2746 break;
2747 popt++;
2748 }
2749 if (popt->flags & HAS_ARG) {
2750 if (optind >= argc) {
2751 error_report("requires an argument");
2752 exit(1);
2753 }
2754 optarg = argv[optind++];
2755 loc_set_cmdline(argv, optind - 2, 2);
2756 } else {
2757 optarg = NULL;
2758 }
2759
2760 *poptarg = optarg;
2761 *poptind = optind;
2762
2763 return popt;
2764 }
2765
2766 static MachineClass *select_machine(void)
2767 {
2768 MachineClass *machine_class = find_default_machine();
2769 const char *optarg;
2770 QemuOpts *opts;
2771 Location loc;
2772
2773 loc_push_none(&loc);
2774
2775 opts = qemu_get_machine_opts();
2776 qemu_opts_loc_restore(opts);
2777
2778 optarg = qemu_opt_get(opts, "type");
2779 if (optarg) {
2780 machine_class = machine_parse(optarg);
2781 }
2782
2783 if (!machine_class) {
2784 error_report("No machine specified, and there is no default");
2785 error_printf("Use -machine help to list supported machines\n");
2786 exit(1);
2787 }
2788
2789 loc_pop(&loc);
2790 return machine_class;
2791 }
2792
2793 static int machine_set_property(void *opaque,
2794 const char *name, const char *value,
2795 Error **errp)
2796 {
2797 Object *obj = OBJECT(opaque);
2798 Error *local_err = NULL;
2799 char *p, *qom_name;
2800
2801 if (strcmp(name, "type") == 0) {
2802 return 0;
2803 }
2804
2805 qom_name = g_strdup(name);
2806 for (p = qom_name; *p; p++) {
2807 if (*p == '_') {
2808 *p = '-';
2809 }
2810 }
2811
2812 object_property_parse(obj, value, qom_name, &local_err);
2813 g_free(qom_name);
2814
2815 if (local_err) {
2816 error_report_err(local_err);
2817 return -1;
2818 }
2819
2820 return 0;
2821 }
2822
2823
2824 /*
2825 * Initial object creation happens before all other
2826 * QEMU data types are created. The majority of objects
2827 * can be created at this point. The rng-egd object
2828 * cannot be created here, as it depends on the chardev
2829 * already existing.
2830 */
2831 static bool object_create_initial(const char *type)
2832 {
2833 if (g_str_equal(type, "rng-egd") ||
2834 g_str_has_prefix(type, "pr-manager-")) {
2835 return false;
2836 }
2837
2838 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2839 if (g_str_equal(type, "cryptodev-vhost-user")) {
2840 return false;
2841 }
2842 #endif
2843
2844 /*
2845 * return false for concrete netfilters since
2846 * they depend on netdevs already existing
2847 */
2848 if (g_str_equal(type, "filter-buffer") ||
2849 g_str_equal(type, "filter-dump") ||
2850 g_str_equal(type, "filter-mirror") ||
2851 g_str_equal(type, "filter-redirector") ||
2852 g_str_equal(type, "colo-compare") ||
2853 g_str_equal(type, "filter-rewriter") ||
2854 g_str_equal(type, "filter-replay")) {
2855 return false;
2856 }
2857
2858 /* Memory allocation by backends needs to be done
2859 * after configure_accelerator() (due to the tcg_enabled()
2860 * checks at memory_region_init_*()).
2861 *
2862 * Also, allocation of large amounts of memory may delay
2863 * chardev initialization for too long, and trigger timeouts
2864 * on software that waits for a monitor socket to be created
2865 * (e.g. libvirt).
2866 */
2867 if (g_str_has_prefix(type, "memory-backend-")) {
2868 return false;
2869 }
2870
2871 return true;
2872 }
2873
2874
2875 /*
2876 * The remainder of object creation happens after the
2877 * creation of chardev, fsdev, net clients and device data types.
2878 */
2879 static bool object_create_delayed(const char *type)
2880 {
2881 return !object_create_initial(type);
2882 }
2883
2884
2885 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2886 MachineClass *mc)
2887 {
2888 uint64_t sz;
2889 const char *mem_str;
2890 const char *maxmem_str, *slots_str;
2891 const ram_addr_t default_ram_size = mc->default_ram_size;
2892 QemuOpts *opts = qemu_find_opts_singleton("memory");
2893 Location loc;
2894
2895 loc_push_none(&loc);
2896 qemu_opts_loc_restore(opts);
2897
2898 sz = 0;
2899 mem_str = qemu_opt_get(opts, "size");
2900 if (mem_str) {
2901 if (!*mem_str) {
2902 error_report("missing 'size' option value");
2903 exit(EXIT_FAILURE);
2904 }
2905
2906 sz = qemu_opt_get_size(opts, "size", ram_size);
2907
2908 /* Fix up legacy suffix-less format */
2909 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2910 uint64_t overflow_check = sz;
2911
2912 sz <<= 20;
2913 if ((sz >> 20) != overflow_check) {
2914 error_report("too large 'size' option value");
2915 exit(EXIT_FAILURE);
2916 }
2917 }
2918 }
2919
2920 /* backward compatibility behaviour for case "-m 0" */
2921 if (sz == 0) {
2922 sz = default_ram_size;
2923 }
2924
2925 sz = QEMU_ALIGN_UP(sz, 8192);
2926 ram_size = sz;
2927 if (ram_size != sz) {
2928 error_report("ram size too large");
2929 exit(EXIT_FAILURE);
2930 }
2931
2932 /* store value for the future use */
2933 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2934 *maxram_size = ram_size;
2935
2936 maxmem_str = qemu_opt_get(opts, "maxmem");
2937 slots_str = qemu_opt_get(opts, "slots");
2938 if (maxmem_str && slots_str) {
2939 uint64_t slots;
2940
2941 sz = qemu_opt_get_size(opts, "maxmem", 0);
2942 slots = qemu_opt_get_number(opts, "slots", 0);
2943 if (sz < ram_size) {
2944 error_report("invalid value of -m option maxmem: "
2945 "maximum memory size (0x%" PRIx64 ") must be at least "
2946 "the initial memory size (0x" RAM_ADDR_FMT ")",
2947 sz, ram_size);
2948 exit(EXIT_FAILURE);
2949 } else if (sz > ram_size) {
2950 if (!slots) {
2951 error_report("invalid value of -m option: maxmem was "
2952 "specified, but no hotplug slots were specified");
2953 exit(EXIT_FAILURE);
2954 }
2955 } else if (slots) {
2956 error_report("invalid value of -m option maxmem: "
2957 "memory slots were specified but maximum memory size "
2958 "(0x%" PRIx64 ") is equal to the initial memory size "
2959 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2960 exit(EXIT_FAILURE);
2961 }
2962
2963 *maxram_size = sz;
2964 *ram_slots = slots;
2965 } else if ((!maxmem_str && slots_str) ||
2966 (maxmem_str && !slots_str)) {
2967 error_report("invalid -m option value: missing "
2968 "'%s' option", slots_str ? "maxmem" : "slots");
2969 exit(EXIT_FAILURE);
2970 }
2971
2972 loc_pop(&loc);
2973 }
2974
2975 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2976 {
2977 GlobalProperty *g;
2978
2979 g = g_malloc0(sizeof(*g));
2980 g->driver = qemu_opt_get(opts, "driver");
2981 g->property = qemu_opt_get(opts, "property");
2982 g->value = qemu_opt_get(opts, "value");
2983 g->user_provided = true;
2984 g->errp = &error_fatal;
2985 qdev_prop_register_global(g);
2986 return 0;
2987 }
2988
2989 static int qemu_read_default_config_file(void)
2990 {
2991 int ret;
2992
2993 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2994 if (ret < 0 && ret != -ENOENT) {
2995 return ret;
2996 }
2997
2998 return 0;
2999 }
3000
3001 static void user_register_global_props(void)
3002 {
3003 qemu_opts_foreach(qemu_find_opts("global"),
3004 global_init_func, NULL, NULL);
3005 }
3006
3007 /*
3008 * Note: we should see that these properties are actually having a
3009 * priority: accel < machine < user. This means e.g. when user
3010 * specifies something in "-global", it'll always be used with highest
3011 * priority than either machine/accelerator compat properties.
3012 */
3013 static void register_global_properties(MachineState *ms)
3014 {
3015 accel_register_compat_props(ms->accelerator);
3016 machine_register_compat_props(ms);
3017 user_register_global_props();
3018 }
3019
3020 int main(int argc, char **argv, char **envp)
3021 {
3022 int i;
3023 int snapshot, linux_boot;
3024 const char *initrd_filename;
3025 const char *kernel_filename, *kernel_cmdline;
3026 const char *boot_order = NULL;
3027 const char *boot_once = NULL;
3028 DisplayState *ds;
3029 QemuOpts *opts, *machine_opts;
3030 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3031 QemuOptsList *olist;
3032 int optind;
3033 const char *optarg;
3034 const char *loadvm = NULL;
3035 MachineClass *machine_class;
3036 const char *cpu_model;
3037 const char *vga_model = NULL;
3038 const char *qtest_chrdev = NULL;
3039 const char *qtest_log = NULL;
3040 const char *pid_file = NULL;
3041 const char *incoming = NULL;
3042 bool userconfig = true;
3043 bool nographic = false;
3044 int display_remote = 0;
3045 const char *log_mask = NULL;
3046 const char *log_file = NULL;
3047 char *trace_file = NULL;
3048 ram_addr_t maxram_size;
3049 uint64_t ram_slots = 0;
3050 FILE *vmstate_dump_file = NULL;
3051 Error *main_loop_err = NULL;
3052 Error *err = NULL;
3053 bool list_data_dirs = false;
3054 char *dir, **dirs;
3055 typedef struct BlockdevOptions_queue {
3056 BlockdevOptions *bdo;
3057 Location loc;
3058 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3059 } BlockdevOptions_queue;
3060 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3061 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3062
3063 module_call_init(MODULE_INIT_TRACE);
3064
3065 qemu_init_cpu_list();
3066 qemu_init_cpu_loop();
3067
3068 qemu_mutex_lock_iothread();
3069
3070 atexit(qemu_run_exit_notifiers);
3071 error_set_progname(argv[0]);
3072 qemu_init_exec_dir(argv[0]);
3073
3074 module_call_init(MODULE_INIT_QOM);
3075
3076 qemu_add_opts(&qemu_drive_opts);
3077 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3078 qemu_add_drive_opts(&qemu_common_drive_opts);
3079 qemu_add_drive_opts(&qemu_drive_opts);
3080 qemu_add_drive_opts(&bdrv_runtime_opts);
3081 qemu_add_opts(&qemu_chardev_opts);
3082 qemu_add_opts(&qemu_device_opts);
3083 qemu_add_opts(&qemu_netdev_opts);
3084 qemu_add_opts(&qemu_nic_opts);
3085 qemu_add_opts(&qemu_net_opts);
3086 qemu_add_opts(&qemu_rtc_opts);
3087 qemu_add_opts(&qemu_global_opts);
3088 qemu_add_opts(&qemu_mon_opts);
3089 qemu_add_opts(&qemu_trace_opts);
3090 qemu_add_opts(&qemu_option_rom_opts);
3091 qemu_add_opts(&qemu_machine_opts);
3092 qemu_add_opts(&qemu_accel_opts);
3093 qemu_add_opts(&qemu_mem_opts);
3094 qemu_add_opts(&qemu_smp_opts);
3095 qemu_add_opts(&qemu_boot_opts);
3096 qemu_add_opts(&qemu_sandbox_opts);
3097 qemu_add_opts(&qemu_add_fd_opts);
3098 qemu_add_opts(&qemu_object_opts);
3099 qemu_add_opts(&qemu_tpmdev_opts);
3100 qemu_add_opts(&qemu_realtime_opts);
3101 qemu_add_opts(&qemu_msg_opts);
3102 qemu_add_opts(&qemu_name_opts);
3103 qemu_add_opts(&qemu_numa_opts);
3104 qemu_add_opts(&qemu_icount_opts);
3105 qemu_add_opts(&qemu_semihosting_config_opts);
3106 qemu_add_opts(&qemu_fw_cfg_opts);
3107 module_call_init(MODULE_INIT_OPTS);
3108
3109 runstate_init();
3110 postcopy_infrastructure_init();
3111
3112 if (qcrypto_init(&err) < 0) {
3113 error_reportf_err(err, "cannot initialize crypto: ");
3114 exit(1);
3115 }
3116 rtc_clock = QEMU_CLOCK_HOST;
3117
3118 QLIST_INIT (&vm_change_state_head);
3119 os_setup_early_signal_handling();
3120
3121 cpu_model = NULL;
3122 snapshot = 0;
3123
3124 nb_nics = 0;
3125
3126 bdrv_init_with_whitelist();
3127
3128 autostart = 1;
3129
3130 /* first pass of option parsing */
3131 optind = 1;
3132 while (optind < argc) {
3133 if (argv[optind][0] != '-') {
3134 /* disk image */
3135 optind++;
3136 } else {
3137 const QEMUOption *popt;
3138
3139 popt = lookup_opt(argc, argv, &optarg, &optind);
3140 switch (popt->index) {
3141 case QEMU_OPTION_nodefconfig:
3142 case QEMU_OPTION_nouserconfig:
3143 userconfig = false;
3144 break;
3145 }
3146 }
3147 }
3148
3149 if (userconfig) {
3150 if (qemu_read_default_config_file() < 0) {
3151 exit(1);
3152 }
3153 }
3154
3155 /* second pass of option parsing */
3156 optind = 1;
3157 for(;;) {
3158 if (optind >= argc)
3159 break;
3160 if (argv[optind][0] != '-') {
3161 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3162 } else {
3163 const QEMUOption *popt;
3164
3165 popt = lookup_opt(argc, argv, &optarg, &optind);
3166 if (!(popt->arch_mask & arch_type)) {
3167 error_report("Option not supported for this target");
3168 exit(1);
3169 }
3170 switch(popt->index) {
3171 case QEMU_OPTION_no_kvm_irqchip: {
3172 olist = qemu_find_opts("machine");
3173 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3174 break;
3175 }
3176 case QEMU_OPTION_cpu:
3177 /* hw initialization will check this */
3178 cpu_model = optarg;
3179 break;
3180 case QEMU_OPTION_hda:
3181 case QEMU_OPTION_hdb:
3182 case QEMU_OPTION_hdc:
3183 case QEMU_OPTION_hdd:
3184 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3185 HD_OPTS);
3186 break;
3187 case QEMU_OPTION_blockdev:
3188 {
3189 Visitor *v;
3190 BlockdevOptions_queue *bdo;
3191
3192 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3193 if (!v) {
3194 error_report_err(err);
3195 exit(1);
3196 }
3197
3198 bdo = g_new(BlockdevOptions_queue, 1);
3199 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3200 &error_fatal);
3201 visit_free(v);
3202 loc_save(&bdo->loc);
3203 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3204 break;
3205 }
3206 case QEMU_OPTION_drive:
3207 if (drive_def(optarg) == NULL) {
3208 exit(1);
3209 }
3210 break;
3211 case QEMU_OPTION_set:
3212 if (qemu_set_option(optarg) != 0)
3213 exit(1);
3214 break;
3215 case QEMU_OPTION_global:
3216 if (qemu_global_option(optarg) != 0)
3217 exit(1);
3218 break;
3219 case QEMU_OPTION_mtdblock:
3220 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3221 break;
3222 case QEMU_OPTION_sd:
3223 drive_add(IF_SD, -1, optarg, SD_OPTS);
3224 break;
3225 case QEMU_OPTION_pflash:
3226 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3227 break;
3228 case QEMU_OPTION_snapshot:
3229 snapshot = 1;
3230 break;
3231 case QEMU_OPTION_numa:
3232 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3233 optarg, true);
3234 if (!opts) {
3235 exit(1);
3236 }
3237 break;
3238 case QEMU_OPTION_display:
3239 parse_display(optarg);
3240 break;
3241 case QEMU_OPTION_nographic:
3242 olist = qemu_find_opts("machine");
3243 qemu_opts_parse_noisily(olist, "graphics=off", false);
3244 nographic = true;
3245 dpy.type = DISPLAY_TYPE_NONE;
3246 break;
3247 case QEMU_OPTION_curses:
3248 #ifdef CONFIG_CURSES
3249 dpy.type = DISPLAY_TYPE_CURSES;
3250 #else
3251 error_report("curses support is disabled");
3252 exit(1);
3253 #endif
3254 break;
3255 case QEMU_OPTION_portrait:
3256 graphic_rotate = 90;
3257 break;
3258 case QEMU_OPTION_rotate:
3259 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3260 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3261 graphic_rotate != 180 && graphic_rotate != 270) {
3262 error_report("only 90, 180, 270 deg rotation is available");
3263 exit(1);
3264 }
3265 break;
3266 case QEMU_OPTION_kernel:
3267 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3268 &error_abort);
3269 break;
3270 case QEMU_OPTION_initrd:
3271 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3272 &error_abort);
3273 break;
3274 case QEMU_OPTION_append:
3275 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3276 &error_abort);
3277 break;
3278 case QEMU_OPTION_dtb:
3279 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3280 &error_abort);
3281 break;
3282 case QEMU_OPTION_cdrom:
3283 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3284 break;
3285 case QEMU_OPTION_boot:
3286 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3287 optarg, true);
3288 if (!opts) {
3289 exit(1);
3290 }
3291 break;
3292 case QEMU_OPTION_fda:
3293 case QEMU_OPTION_fdb:
3294 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3295 optarg, FD_OPTS);
3296 break;
3297 case QEMU_OPTION_no_fd_bootchk:
3298 fd_bootchk = 0;
3299 break;
3300 case QEMU_OPTION_netdev:
3301 default_net = 0;
3302 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3303 exit(1);
3304 }
3305 break;
3306 case QEMU_OPTION_nic:
3307 default_net = 0;
3308 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3309 exit(1);
3310 }
3311 break;
3312 case QEMU_OPTION_net:
3313 default_net = 0;
3314 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3315 exit(1);
3316 }
3317 break;
3318 #ifdef CONFIG_LIBISCSI
3319 case QEMU_OPTION_iscsi:
3320 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3321 optarg, false);
3322 if (!opts) {
3323 exit(1);
3324 }
3325 break;
3326 #endif
3327 #ifdef CONFIG_SLIRP
3328 case QEMU_OPTION_tftp:
3329 error_report("The -tftp option is deprecated. "
3330 "Please use '-netdev user,tftp=...' instead.");
3331 legacy_tftp_prefix = optarg;
3332 break;
3333 case QEMU_OPTION_bootp:
3334 error_report("The -bootp option is deprecated. "
3335 "Please use '-netdev user,bootfile=...' instead.");
3336 legacy_bootp_filename = optarg;
3337 break;
3338 case QEMU_OPTION_redir:
3339 error_report("The -redir option is deprecated. "
3340 "Please use '-netdev user,hostfwd=...' instead.");
3341 if (net_slirp_redir(optarg) < 0)
3342 exit(1);
3343 break;
3344 #endif
3345 case QEMU_OPTION_bt:
3346 add_device_config(DEV_BT, optarg);
3347 break;
3348 case QEMU_OPTION_audio_help:
3349 AUD_help ();
3350 exit (0);
3351 break;
3352 case QEMU_OPTION_soundhw:
3353 select_soundhw (optarg);
3354 break;
3355 case QEMU_OPTION_h:
3356 help(0);
3357 break;
3358 case QEMU_OPTION_version:
3359 version();
3360 exit(0);
3361 break;
3362 case QEMU_OPTION_m:
3363 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3364 optarg, true);
3365 if (!opts) {
3366 exit(EXIT_FAILURE);
3367 }
3368 break;
3369 #ifdef CONFIG_TPM
3370 case QEMU_OPTION_tpmdev:
3371 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3372 exit(1);
3373 }
3374 break;
3375 #endif
3376 case QEMU_OPTION_mempath:
3377 mem_path = optarg;
3378 break;
3379 case QEMU_OPTION_mem_prealloc:
3380 mem_prealloc = 1;
3381 break;
3382 case QEMU_OPTION_d:
3383 log_mask = optarg;
3384 break;
3385 case QEMU_OPTION_D:
3386 log_file = optarg;
3387 break;
3388 case QEMU_OPTION_DFILTER:
3389 qemu_set_dfilter_ranges(optarg, &error_fatal);
3390 break;
3391 case QEMU_OPTION_s:
3392 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3393 break;
3394 case QEMU_OPTION_gdb:
3395 add_device_config(DEV_GDB, optarg);
3396 break;
3397 case QEMU_OPTION_L:
3398 if (is_help_option(optarg)) {
3399 list_data_dirs = true;
3400 } else {
3401 qemu_add_data_dir(optarg);
3402 }
3403 break;
3404 case QEMU_OPTION_bios:
3405 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3406 &error_abort);
3407 break;
3408 case QEMU_OPTION_singlestep:
3409 singlestep = 1;
3410 break;
3411 case QEMU_OPTION_S:
3412 autostart = 0;
3413 break;
3414 case QEMU_OPTION_k:
3415 keyboard_layout = optarg;
3416 break;
3417 case QEMU_OPTION_localtime:
3418 rtc_utc = 0;
3419 warn_report("This option is deprecated, "
3420 "use '-rtc base=localtime' instead.");
3421 break;
3422 case QEMU_OPTION_vga:
3423 vga_model = optarg;
3424 default_vga = 0;
3425 break;
3426 case QEMU_OPTION_g:
3427 {
3428 const char *p;
3429 int w, h, depth;
3430 p = optarg;
3431 w = strtol(p, (char **)&p, 10);
3432 if (w <= 0) {
3433 graphic_error:
3434 error_report("invalid resolution or depth");
3435 exit(1);
3436 }
3437 if (*p != 'x')
3438 goto graphic_error;
3439 p++;
3440 h = strtol(p, (char **)&p, 10);
3441 if (h <= 0)
3442 goto graphic_error;
3443 if (*p == 'x') {
3444 p++;
3445 depth = strtol(p, (char **)&p, 10);
3446 if (depth != 8 && depth != 15 && depth != 16 &&
3447 depth != 24 && depth != 32)
3448 goto graphic_error;
3449 } else if (*p == '\0') {
3450 depth = graphic_depth;
3451 } else {
3452 goto graphic_error;
3453 }
3454
3455 graphic_width = w;
3456 graphic_height = h;
3457 graphic_depth = depth;
3458 }
3459 break;
3460 case QEMU_OPTION_echr:
3461 {
3462 char *r;
3463 term_escape_char = strtol(optarg, &r, 0);
3464 if (r == optarg)
3465 printf("Bad argument to echr\n");
3466 break;
3467 }
3468 case QEMU_OPTION_monitor:
3469 default_monitor = 0;
3470 if (strncmp(optarg, "none", 4)) {
3471 monitor_parse(optarg, "readline", false);
3472 }
3473 break;
3474 case QEMU_OPTION_qmp:
3475 monitor_parse(optarg, "control", false);
3476 default_monitor = 0;
3477 break;
3478 case QEMU_OPTION_qmp_pretty:
3479 monitor_parse(optarg, "control", true);
3480 default_monitor = 0;
3481 break;
3482 case QEMU_OPTION_mon:
3483 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3484 true);
3485 if (!opts) {
3486 exit(1);
3487 }
3488 default_monitor = 0;
3489 break;
3490 case QEMU_OPTION_chardev:
3491 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3492 optarg, true);
3493 if (!opts) {
3494 exit(1);
3495 }
3496 break;
3497 case QEMU_OPTION_fsdev:
3498 olist = qemu_find_opts("fsdev");
3499 if (!olist) {
3500 error_report("fsdev support is disabled");
3501 exit(1);
3502 }
3503 opts = qemu_opts_parse_noisily(olist, optarg, true);
3504 if (!opts) {
3505 exit(1);
3506 }
3507 break;
3508 case QEMU_OPTION_virtfs: {
3509 QemuOpts *fsdev;
3510 QemuOpts *device;
3511 const char *writeout, *sock_fd, *socket, *path, *security_model;
3512
3513 olist = qemu_find_opts("virtfs");
3514 if (!olist) {
3515 error_report("virtfs support is disabled");
3516 exit(1);
3517 }
3518 opts = qemu_opts_parse_noisily(olist, optarg, true);
3519 if (!opts) {
3520 exit(1);
3521 }
3522
3523 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3524 qemu_opt_get(opts, "mount_tag") == NULL) {
3525 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3526 exit(1);
3527 }
3528 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3529 qemu_opts_id(opts) ?:
3530 qemu_opt_get(opts, "mount_tag"),
3531 1, NULL);
3532 if (!fsdev) {
3533 error_report("duplicate or invalid fsdev id: %s",
3534 qemu_opt_get(opts, "mount_tag"));
3535 exit(1);
3536 }
3537
3538 writeout = qemu_opt_get(opts, "writeout");
3539 if (writeout) {
3540 #ifdef CONFIG_SYNC_FILE_RANGE
3541 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3542 #else
3543 error_report("writeout=immediate not supported "
3544 "on this platform");
3545 exit(1);
3546 #endif
3547 }
3548 qemu_opt_set(fsdev, "fsdriver",
3549 qemu_opt_get(opts, "fsdriver"), &error_abort);
3550 path = qemu_opt_get(opts, "path");
3551 if (path) {
3552 qemu_opt_set(fsdev, "path", path, &error_abort);
3553 }
3554 security_model = qemu_opt_get(opts, "security_model");
3555 if (security_model) {
3556 qemu_opt_set(fsdev, "security_model", security_model,
3557 &error_abort);
3558 }
3559 socket = qemu_opt_get(opts, "socket");
3560 if (socket) {
3561 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3562 }
3563 sock_fd = qemu_opt_get(opts, "sock_fd");
3564 if (sock_fd) {
3565 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3566 }
3567
3568 qemu_opt_set_bool(fsdev, "readonly",
3569 qemu_opt_get_bool(opts, "readonly", 0),
3570 &error_abort);
3571 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3572 &error_abort);
3573 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3574 qemu_opt_set(device, "fsdev",
3575 qemu_opts_id(fsdev), &error_abort);
3576 qemu_opt_set(device, "mount_tag",
3577 qemu_opt_get(opts, "mount_tag"), &error_abort);
3578 break;
3579 }
3580 case QEMU_OPTION_virtfs_synth: {
3581 QemuOpts *fsdev;
3582 QemuOpts *device;
3583
3584 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3585 1, NULL);
3586 if (!fsdev) {
3587 error_report("duplicate option: %s", "virtfs_synth");
3588 exit(1);
3589 }
3590 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3591
3592 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3593 &error_abort);
3594 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3595 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3596 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3597 break;
3598 }
3599 case QEMU_OPTION_serial:
3600 add_device_config(DEV_SERIAL, optarg);
3601 default_serial = 0;
3602 if (strncmp(optarg, "mon:", 4) == 0) {
3603 default_monitor = 0;
3604 }
3605 break;
3606 case QEMU_OPTION_watchdog:
3607 if (watchdog) {
3608 error_report("only one watchdog option may be given");
3609 return 1;
3610 }
3611 watchdog = optarg;
3612 break;
3613 case QEMU_OPTION_watchdog_action:
3614 if (select_watchdog_action(optarg) == -1) {
3615 error_report("unknown -watchdog-action parameter");
3616 exit(1);
3617 }
3618 break;
3619 case QEMU_OPTION_virtiocon:
3620 add_device_config(DEV_VIRTCON, optarg);
3621 default_virtcon = 0;
3622 if (strncmp(optarg, "mon:", 4) == 0) {
3623 default_monitor = 0;
3624 }
3625 break;
3626 case QEMU_OPTION_parallel:
3627 add_device_config(DEV_PARALLEL, optarg);
3628 default_parallel = 0;
3629 if (strncmp(optarg, "mon:", 4) == 0) {
3630 default_monitor = 0;
3631 }
3632 break;
3633 case QEMU_OPTION_debugcon:
3634 add_device_config(DEV_DEBUGCON, optarg);
3635 break;
3636 case QEMU_OPTION_loadvm:
3637 loadvm = optarg;
3638 break;
3639 case QEMU_OPTION_full_screen:
3640 dpy.has_full_screen = true;
3641 dpy.full_screen = true;
3642 break;
3643 case QEMU_OPTION_no_frame:
3644 g_printerr("The -no-frame switch is deprecated, and will be\n"
3645 "removed in a future release.\n");
3646 no_frame = 1;
3647 break;
3648 case QEMU_OPTION_alt_grab:
3649 alt_grab = 1;
3650 break;
3651 case QEMU_OPTION_ctrl_grab:
3652 ctrl_grab = 1;
3653 break;
3654 case QEMU_OPTION_no_quit:
3655 dpy.has_window_close = true;
3656 dpy.window_close = false;
3657 break;
3658 case QEMU_OPTION_sdl:
3659 #ifdef CONFIG_SDL
3660 dpy.type = DISPLAY_TYPE_SDL;
3661 break;
3662 #else
3663 error_report("SDL support is disabled");
3664 exit(1);
3665 #endif
3666 case QEMU_OPTION_pidfile:
3667 pid_file = optarg;
3668 break;
3669 case QEMU_OPTION_win2k_hack:
3670 win2k_install_hack = 1;
3671 break;
3672 case QEMU_OPTION_rtc_td_hack: {
3673 static GlobalProperty slew_lost_ticks = {
3674 .driver = "mc146818rtc",
3675 .property = "lost_tick_policy",
3676 .value = "slew",
3677 };
3678
3679 qdev_prop_register_global(&slew_lost_ticks);
3680 warn_report("This option is deprecated, "
3681 "use '-rtc driftfix=slew' instead.");
3682 break;
3683 }
3684 case QEMU_OPTION_acpitable:
3685 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3686 optarg, true);
3687 if (!opts) {
3688 exit(1);
3689 }
3690 acpi_table_add(opts, &error_fatal);
3691 break;
3692 case QEMU_OPTION_smbios:
3693 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3694 optarg, false);
3695 if (!opts) {
3696 exit(1);
3697 }
3698 smbios_entry_add(opts, &error_fatal);
3699 break;
3700 case QEMU_OPTION_fwcfg:
3701 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3702 optarg, true);
3703 if (opts == NULL) {
3704 exit(1);
3705 }
3706 break;
3707 case QEMU_OPTION_enable_kvm:
3708 olist = qemu_find_opts("machine");
3709 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3710 break;
3711 case QEMU_OPTION_enable_hax:
3712 olist = qemu_find_opts("machine");
3713 qemu_opts_parse_noisily(olist, "accel=hax", false);
3714 break;
3715 case QEMU_OPTION_M:
3716 case QEMU_OPTION_machine:
3717 olist = qemu_find_opts("machine");
3718 opts = qemu_opts_parse_noisily(olist, optarg, true);
3719 if (!opts) {
3720 exit(1);
3721 }
3722 break;
3723 case QEMU_OPTION_no_kvm:
3724 olist = qemu_find_opts("machine");
3725 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3726 break;
3727 case QEMU_OPTION_no_kvm_pit_reinjection: {
3728 static GlobalProperty kvm_pit_lost_tick_policy = {
3729 .driver = "kvm-pit",
3730 .property = "lost_tick_policy",
3731 .value = "discard",
3732 };
3733
3734 warn_report("deprecated, replaced by "
3735 "-global kvm-pit.lost_tick_policy=discard");
3736 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3737 break;
3738 }
3739 case QEMU_OPTION_accel:
3740 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3741 optarg, true);
3742 optarg = qemu_opt_get(accel_opts, "accel");
3743 if (!optarg || is_help_option(optarg)) {
3744 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3745 exit(0);
3746 }
3747 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3748 false, &error_abort);
3749 qemu_opt_set(opts, "accel", optarg, &error_abort);
3750 break;
3751 case QEMU_OPTION_usb:
3752 olist = qemu_find_opts("machine");
3753 qemu_opts_parse_noisily(olist, "usb=on", false);
3754 break;
3755 case QEMU_OPTION_usbdevice:
3756 error_report("'-usbdevice' is deprecated, please use "
3757 "'-device usb-...' instead");
3758 olist = qemu_find_opts("machine");
3759 qemu_opts_parse_noisily(olist, "usb=on", false);
3760 add_device_config(DEV_USB, optarg);
3761 break;
3762 case QEMU_OPTION_device:
3763 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3764 optarg, true)) {
3765 exit(1);
3766 }
3767 break;
3768 case QEMU_OPTION_smp:
3769 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3770 optarg, true)) {
3771 exit(1);
3772 }
3773 break;
3774 case QEMU_OPTION_vnc:
3775 vnc_parse(optarg, &error_fatal);
3776 break;
3777 case QEMU_OPTION_no_acpi:
3778 acpi_enabled = 0;
3779 break;
3780 case QEMU_OPTION_no_hpet:
3781 no_hpet = 1;
3782 break;
3783 case QEMU_OPTION_balloon:
3784 if (balloon_parse(optarg) < 0) {
3785 error_report("unknown -balloon argument %s", optarg);
3786 exit(1);
3787 }
3788 break;
3789 case QEMU_OPTION_no_reboot:
3790 no_reboot = 1;
3791 break;
3792 case QEMU_OPTION_no_shutdown:
3793 no_shutdown = 1;
3794 break;
3795 case QEMU_OPTION_show_cursor:
3796 cursor_hide = 0;
3797 break;
3798 case QEMU_OPTION_uuid:
3799 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3800 error_report("failed to parse UUID string: wrong format");
3801 exit(1);
3802 }
3803 qemu_uuid_set = true;
3804 break;
3805 case QEMU_OPTION_option_rom:
3806 if (nb_option_roms >= MAX_OPTION_ROMS) {
3807 error_report("too many option ROMs");
3808 exit(1);
3809 }
3810 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3811 optarg, true);
3812 if (!opts) {
3813 exit(1);
3814 }
3815 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3816 option_rom[nb_option_roms].bootindex =
3817 qemu_opt_get_number(opts, "bootindex", -1);
3818 if (!option_rom[nb_option_roms].name) {
3819 error_report("Option ROM file is not specified");
3820 exit(1);
3821 }
3822 nb_option_roms++;
3823 break;
3824 case QEMU_OPTION_semihosting:
3825 semihosting.enabled = true;
3826 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3827 break;
3828 case QEMU_OPTION_semihosting_config:
3829 semihosting.enabled = true;
3830 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3831 optarg, false);
3832 if (opts != NULL) {
3833 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3834 true);
3835 const char *target = qemu_opt_get(opts, "target");
3836 if (target != NULL) {
3837 if (strcmp("native", target) == 0) {
3838 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3839 } else if (strcmp("gdb", target) == 0) {
3840 semihosting.target = SEMIHOSTING_TARGET_GDB;
3841 } else if (strcmp("auto", target) == 0) {
3842 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3843 } else {
3844 error_report("unsupported semihosting-config %s",
3845 optarg);
3846 exit(1);
3847 }
3848 } else {
3849 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3850 }
3851 /* Set semihosting argument count and vector */
3852 qemu_opt_foreach(opts, add_semihosting_arg,
3853 &semihosting, NULL);
3854 } else {
3855 error_report("unsupported semihosting-config %s", optarg);
3856 exit(1);
3857 }
3858 break;
3859 case QEMU_OPTION_name:
3860 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3861 optarg, true);
3862 if (!opts) {
3863 exit(1);
3864 }
3865 break;
3866 case QEMU_OPTION_prom_env:
3867 if (nb_prom_envs >= MAX_PROM_ENVS) {
3868 error_report("too many prom variables");
3869 exit(1);
3870 }
3871 prom_envs[nb_prom_envs] = optarg;
3872 nb_prom_envs++;
3873 break;
3874 case QEMU_OPTION_old_param:
3875 old_param = 1;
3876 break;
3877 case QEMU_OPTION_clock:
3878 /* Clock options no longer exist. Keep this option for
3879 * backward compatibility.
3880 */
3881 break;
3882 case QEMU_OPTION_startdate:
3883 warn_report("This option is deprecated, use '-rtc base=' instead.");
3884 configure_rtc_date_offset(optarg, 1);
3885 break;
3886 case QEMU_OPTION_rtc:
3887 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3888 false);
3889 if (!opts) {
3890 exit(1);
3891 }
3892 configure_rtc(opts);
3893 break;
3894 case QEMU_OPTION_tb_size:
3895 #ifndef CONFIG_TCG
3896 error_report("TCG is disabled");
3897 exit(1);
3898 #endif
3899 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3900 error_report("Invalid argument to -tb-size");
3901 exit(1);
3902 }
3903 break;
3904 case QEMU_OPTION_icount:
3905 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3906 optarg, true);
3907 if (!icount_opts) {
3908 exit(1);
3909 }
3910 break;
3911 case QEMU_OPTION_incoming:
3912 if (!incoming) {
3913 runstate_set(RUN_STATE_INMIGRATE);
3914 }
3915 incoming = optarg;
3916 break;
3917 case QEMU_OPTION_only_migratable:
3918 /*
3919 * TODO: we can remove this option one day, and we
3920 * should all use:
3921 *
3922 * "-global migration.only-migratable=true"
3923 */
3924 qemu_global_option("migration.only-migratable=true");
3925 break;
3926 case QEMU_OPTION_nodefaults:
3927 has_defaults = 0;
3928 break;
3929 case QEMU_OPTION_xen_domid:
3930 if (!(xen_available())) {
3931 error_report("Option not supported for this target");
3932 exit(1);
3933 }
3934 xen_domid = atoi(optarg);
3935 break;
3936 case QEMU_OPTION_xen_create:
3937 if (!(xen_available())) {
3938 error_report("Option not supported for this target");
3939 exit(1);
3940 }
3941 xen_mode = XEN_CREATE;
3942 break;
3943 case QEMU_OPTION_xen_attach:
3944 if (!(xen_available())) {
3945 error_report("Option not supported for this target");
3946 exit(1);
3947 }
3948 xen_mode = XEN_ATTACH;
3949 break;
3950 case QEMU_OPTION_xen_domid_restrict:
3951 if (!(xen_available())) {
3952 error_report("Option not supported for this target");
3953 exit(1);
3954 }
3955 xen_domid_restrict = true;
3956 break;
3957 case QEMU_OPTION_trace:
3958 g_free(trace_file);
3959 trace_file = trace_opt_parse(optarg);
3960 break;
3961 case QEMU_OPTION_readconfig:
3962 {
3963 int ret = qemu_read_config_file(optarg);
3964 if (ret < 0) {
3965 error_report("read config %s: %s", optarg,
3966 strerror(-ret));
3967 exit(1);
3968 }
3969 break;
3970 }
3971 case QEMU_OPTION_spice:
3972 olist = qemu_find_opts("spice");
3973 if (!olist) {
3974 error_report("spice support is disabled");
3975 exit(1);
3976 }
3977 opts = qemu_opts_parse_noisily(olist, optarg, false);
3978 if (!opts) {
3979 exit(1);
3980 }
3981 display_remote++;
3982 break;
3983 case QEMU_OPTION_writeconfig:
3984 {
3985 FILE *fp;
3986 if (strcmp(optarg, "-") == 0) {
3987 fp = stdout;
3988 } else {
3989 fp = fopen(optarg, "w");
3990 if (fp == NULL) {
3991 error_report("open %s: %s", optarg,
3992 strerror(errno));
3993 exit(1);
3994 }
3995 }
3996 qemu_config_write(fp);
3997 if (fp != stdout) {
3998 fclose(fp);
3999 }
4000 break;
4001 }
4002 case QEMU_OPTION_qtest:
4003 qtest_chrdev = optarg;
4004 break;
4005 case QEMU_OPTION_qtest_log:
4006 qtest_log = optarg;
4007 break;
4008 case QEMU_OPTION_sandbox:
4009 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4010 optarg, true);
4011 if (!opts) {
4012 exit(1);
4013 }
4014 break;
4015 case QEMU_OPTION_add_fd:
4016 #ifndef _WIN32
4017 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4018 optarg, false);
4019 if (!opts) {
4020 exit(1);
4021 }
4022 #else
4023 error_report("File descriptor passing is disabled on this "
4024 "platform");
4025 exit(1);
4026 #endif
4027 break;
4028 case QEMU_OPTION_object:
4029 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4030 optarg, true);
4031 if (!opts) {
4032 exit(1);
4033 }
4034 break;
4035 case QEMU_OPTION_realtime:
4036 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4037 optarg, false);
4038 if (!opts) {
4039 exit(1);
4040 }
4041 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4042 break;
4043 case QEMU_OPTION_msg:
4044 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4045 false);
4046 if (!opts) {
4047 exit(1);
4048 }
4049 configure_msg(opts);
4050 break;
4051 case QEMU_OPTION_dump_vmstate:
4052 if (vmstate_dump_file) {
4053 error_report("only one '-dump-vmstate' "
4054 "option may be given");
4055 exit(1);
4056 }
4057 vmstate_dump_file = fopen(optarg, "w");
4058 if (vmstate_dump_file == NULL) {
4059 error_report("open %s: %s", optarg, strerror(errno));
4060 exit(1);
4061 }
4062 break;
4063 default:
4064 os_parse_cmd_args(popt->index, optarg);
4065 }
4066 }
4067 }
4068 /*
4069 * Clear error location left behind by the loop.
4070 * Best done right after the loop. Do not insert code here!
4071 */
4072 loc_set_none();
4073
4074 replay_configure(icount_opts);
4075
4076 machine_class = select_machine();
4077
4078 set_memory_options(&ram_slots, &maxram_size, machine_class);
4079
4080 os_daemonize();
4081 rcu_disable_atfork();
4082
4083 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4084 error_report("could not acquire pid file: %s", strerror(errno));
4085 exit(1);
4086 }
4087
4088 if (qemu_init_main_loop(&main_loop_err)) {
4089 error_report_err(main_loop_err);
4090 exit(1);
4091 }
4092
4093 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4094 parse_sandbox, NULL, NULL)) {
4095 exit(1);
4096 }
4097
4098 if (qemu_opts_foreach(qemu_find_opts("name"),
4099 parse_name, NULL, NULL)) {
4100 exit(1);
4101 }
4102
4103 #ifndef _WIN32
4104 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4105 parse_add_fd, NULL, NULL)) {
4106 exit(1);
4107 }
4108
4109 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4110 cleanup_add_fd, NULL, NULL)) {
4111 exit(1);
4112 }
4113 #endif
4114
4115 current_machine = MACHINE(object_new(object_class_get_name(
4116 OBJECT_CLASS(machine_class))));
4117 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4118 exit(0);
4119 }
4120 object_property_add_child(object_get_root(), "machine",
4121 OBJECT(current_machine), &error_abort);
4122
4123 if (machine_class->minimum_page_bits) {
4124 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4125 /* This would be a board error: specifying a minimum smaller than
4126 * a target's compile-time fixed setting.
4127 */
4128 g_assert_not_reached();
4129 }
4130 }
4131
4132 cpu_exec_init_all();
4133
4134 if (machine_class->hw_version) {
4135 qemu_set_hw_version(machine_class->hw_version);
4136 }
4137
4138 if (cpu_model && is_help_option(cpu_model)) {
4139 list_cpus(stdout, &fprintf, cpu_model);
4140 exit(0);
4141 }
4142
4143 if (!trace_init_backends()) {
4144 exit(1);
4145 }
4146 trace_init_file(trace_file);
4147
4148 /* Open the logfile at this point and set the log mask if necessary.
4149 */
4150 if (log_file) {
4151 qemu_set_log_filename(log_file, &error_fatal);
4152 }
4153
4154 if (log_mask) {
4155 int mask;
4156 mask = qemu_str_to_log_mask(log_mask);
4157 if (!mask) {
4158 qemu_print_log_usage(stdout);
4159 exit(1);
4160 }
4161 qemu_set_log(mask);
4162 } else {
4163 qemu_set_log(0);
4164 }
4165
4166 /* add configured firmware directories */
4167 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4168 for (i = 0; dirs[i] != NULL; i++) {
4169 qemu_add_data_dir(dirs[i]);
4170 }
4171 g_strfreev(dirs);
4172
4173 /* try to find datadir relative to the executable path */
4174 dir = os_find_datadir();
4175 qemu_add_data_dir(dir);
4176 g_free(dir);
4177
4178 /* add the datadir specified when building */
4179 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4180
4181 /* -L help lists the data directories and exits. */
4182 if (list_data_dirs) {
4183 for (i = 0; i < data_dir_idx; i++) {
4184 printf("%s\n", data_dir[i]);
4185 }
4186 exit(0);
4187 }
4188
4189 /* machine_class: default to UP */
4190 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4191 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4192 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4193
4194 /* default to machine_class->default_cpus */
4195 smp_cpus = machine_class->default_cpus;
4196 max_cpus = machine_class->default_cpus;
4197
4198 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4199
4200 /* sanity-check smp_cpus and max_cpus against machine_class */
4201 if (smp_cpus < machine_class->min_cpus) {
4202 error_report("Invalid SMP CPUs %d. The min CPUs "
4203 "supported by machine '%s' is %d", smp_cpus,
4204 machine_class->name, machine_class->min_cpus);
4205 exit(1);
4206 }
4207 if (max_cpus > machine_class->max_cpus) {
4208 error_report("Invalid SMP CPUs %d. The max CPUs "
4209 "supported by machine '%s' is %d", max_cpus,
4210 machine_class->name, machine_class->max_cpus);
4211 exit(1);
4212 }
4213
4214 /*
4215 * Get the default machine options from the machine if it is not already
4216 * specified either by the configuration file or by the command line.
4217 */
4218 if (machine_class->default_machine_opts) {
4219 qemu_opts_set_defaults(qemu_find_opts("machine"),
4220 machine_class->default_machine_opts, 0);
4221 }
4222
4223 qemu_opts_foreach(qemu_find_opts("device"),
4224 default_driver_check, NULL, NULL);
4225 qemu_opts_foreach(qemu_find_opts("global"),
4226 default_driver_check, NULL, NULL);
4227
4228 if (!vga_model && !default_vga) {
4229 vga_interface_type = VGA_DEVICE;
4230 }
4231 if (!has_defaults || machine_class->no_serial) {
4232 default_serial = 0;
4233 }
4234 if (!has_defaults || machine_class->no_parallel) {
4235 default_parallel = 0;
4236 }
4237 if (!has_defaults || !machine_class->use_virtcon) {
4238 default_virtcon = 0;
4239 }
4240 if (!has_defaults || !machine_class->use_sclp) {
4241 default_sclp = 0;
4242 }
4243 if (!has_defaults || machine_class->no_floppy) {
4244 default_floppy = 0;
4245 }
4246 if (!has_defaults || machine_class->no_cdrom) {
4247 default_cdrom = 0;
4248 }
4249 if (!has_defaults || machine_class->no_sdcard) {
4250 default_sdcard = 0;
4251 }
4252 if (!has_defaults) {
4253 default_monitor = 0;
4254 default_net = 0;
4255 default_vga = 0;
4256 }
4257
4258 if (is_daemonized()) {
4259 /* According to documentation and historically, -nographic redirects
4260 * serial port, parallel port and monitor to stdio, which does not work
4261 * with -daemonize. We can redirect these to null instead, but since
4262 * -nographic is legacy, let's just error out.
4263 * We disallow -nographic only if all other ports are not redirected
4264 * explicitly, to not break existing legacy setups which uses
4265 * -nographic _and_ redirects all ports explicitly - this is valid
4266 * usage, -nographic is just a no-op in this case.
4267 */
4268 if (nographic
4269 && (default_parallel || default_serial
4270 || default_monitor || default_virtcon)) {
4271 error_report("-nographic cannot be used with -daemonize");
4272 exit(1);
4273 }
4274 #ifdef CONFIG_CURSES
4275 if (dpy.type == DISPLAY_TYPE_CURSES) {
4276 error_report("curses display cannot be used with -daemonize");
4277 exit(1);
4278 }
4279 #endif
4280 }
4281
4282 if (nographic) {
4283 if (default_parallel)
4284 add_device_config(DEV_PARALLEL, "null");
4285 if (default_serial && default_monitor) {
4286 add_device_config(DEV_SERIAL, "mon:stdio");
4287 } else if (default_virtcon && default_monitor) {
4288 add_device_config(DEV_VIRTCON, "mon:stdio");
4289 } else if (default_sclp && default_monitor) {
4290 add_device_config(DEV_SCLP, "mon:stdio");
4291 } else {
4292 if (default_serial)
4293 add_device_config(DEV_SERIAL, "stdio");
4294 if (default_virtcon)
4295 add_device_config(DEV_VIRTCON, "stdio");
4296 if (default_sclp) {
4297 add_device_config(DEV_SCLP, "stdio");
4298 }
4299 if (default_monitor)
4300 monitor_parse("stdio", "readline", false);
4301 }
4302 } else {
4303 if (default_serial)
4304 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4305 if (default_parallel)
4306 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4307 if (default_monitor)
4308 monitor_parse("vc:80Cx24C", "readline", false);
4309 if (default_virtcon)
4310 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4311 if (default_sclp) {
4312 add_device_config(DEV_SCLP, "vc:80Cx24C");
4313 }
4314 }
4315
4316 #if defined(CONFIG_VNC)
4317 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4318 display_remote++;
4319 }
4320 #endif
4321 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4322 if (!qemu_display_find_default(&dpy)) {
4323 dpy.type = DISPLAY_TYPE_NONE;
4324 #if defined(CONFIG_VNC)
4325 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4326 #endif
4327 }
4328 }
4329 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4330 dpy.type = DISPLAY_TYPE_NONE;
4331 }
4332
4333 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4334 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4335 "for SDL, ignoring option");
4336 }
4337 if (dpy.has_window_close &&
4338 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4339 error_report("-no-quit is only valid for GTK and SDL, "
4340 "ignoring option");
4341 }
4342
4343 qemu_display_early_init(&dpy);
4344 qemu_console_early_init();
4345
4346 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4347 #if defined(CONFIG_OPENGL)
4348 error_report("OpenGL is not supported by the display");
4349 #else
4350 error_report("OpenGL support is disabled");
4351 #endif
4352 exit(1);
4353 }
4354
4355 page_size_init();
4356 socket_init();
4357
4358 if (qemu_opts_foreach(qemu_find_opts("object"),
4359 user_creatable_add_opts_foreach,
4360 object_create_initial, NULL)) {
4361 exit(1);
4362 }
4363
4364 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4365 chardev_init_func, NULL, NULL)) {
4366 exit(1);
4367 }
4368
4369 #ifdef CONFIG_VIRTFS
4370 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4371 fsdev_init_func, NULL, NULL)) {
4372 exit(1);
4373 }
4374 #endif
4375
4376 if (qemu_opts_foreach(qemu_find_opts("device"),
4377 device_help_func, NULL, NULL)) {
4378 exit(0);
4379 }
4380
4381 machine_opts = qemu_get_machine_opts();
4382 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4383 NULL)) {
4384 object_unref(OBJECT(current_machine));
4385 exit(1);
4386 }
4387
4388 configure_accelerator(current_machine);
4389
4390 /*
4391 * Register all the global properties, including accel properties,
4392 * machine properties, and user-specified ones.
4393 */
4394 register_global_properties(current_machine);
4395
4396 /*
4397 * Migration object can only be created after global properties
4398 * are applied correctly.
4399 */
4400 migration_object_init();
4401
4402 if (qtest_chrdev) {
4403 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4404 }
4405
4406 machine_opts = qemu_get_machine_opts();
4407 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4408 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4409 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4410 bios_name = qemu_opt_get(machine_opts, "firmware");
4411
4412 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4413 if (opts) {
4414 boot_order = qemu_opt_get(opts, "order");
4415 if (boot_order) {
4416 validate_bootdevices(boot_order, &error_fatal);
4417 }
4418
4419 boot_once = qemu_opt_get(opts, "once");
4420 if (boot_once) {
4421 validate_bootdevices(boot_once, &error_fatal);
4422 }
4423
4424 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4425 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4426 }
4427
4428 if (!boot_order) {
4429 boot_order = machine_class->default_boot_order;
4430 }
4431
4432 if (!kernel_cmdline) {
4433 kernel_cmdline = "";
4434 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4435 }
4436
4437 linux_boot = (kernel_filename != NULL);
4438
4439 if (!linux_boot && *kernel_cmdline != '\0') {
4440 error_report("-append only allowed with -kernel option");
4441 exit(1);
4442 }
4443
4444 if (!linux_boot && initrd_filename != NULL) {
4445 error_report("-initrd only allowed with -kernel option");
4446 exit(1);
4447 }
4448
4449 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4450 /* fall back to the -kernel/-append */
4451 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4452 }
4453
4454 os_set_line_buffering();
4455
4456 /* spice needs the timers to be initialized by this point */
4457 qemu_spice_init();
4458
4459 cpu_ticks_init();
4460 if (icount_opts) {
4461 if (!tcg_enabled()) {
4462 error_report("-icount is not allowed with hardware virtualization");
4463 exit(1);
4464 }
4465 configure_icount(icount_opts, &error_abort);
4466 qemu_opts_del(icount_opts);
4467 }
4468
4469 if (tcg_enabled()) {
4470 qemu_tcg_configure(accel_opts, &error_fatal);
4471 }
4472
4473 if (default_net) {
4474 QemuOptsList *net = qemu_find_opts("net");
4475 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4476 #ifdef CONFIG_SLIRP
4477 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4478 #endif
4479 }
4480
4481 colo_info_init();
4482
4483 if (net_init_clients(&err) < 0) {
4484 error_report_err(err);
4485 exit(1);
4486 }
4487
4488 if (qemu_opts_foreach(qemu_find_opts("object"),
4489 user_creatable_add_opts_foreach,
4490 object_create_delayed, NULL)) {
4491 exit(1);
4492 }
4493
4494 if (tpm_init() < 0) {
4495 exit(1);
4496 }
4497
4498 /* init the bluetooth world */
4499 if (foreach_device_config(DEV_BT, bt_parse))
4500 exit(1);
4501
4502 if (!xen_enabled()) {
4503 /* On 32-bit hosts, QEMU is limited by virtual address space */
4504 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4505 error_report("at most 2047 MB RAM can be simulated");
4506 exit(1);
4507 }
4508 }
4509
4510 blk_mig_init();
4511 ram_mig_init();
4512 dirty_bitmap_mig_init();
4513
4514 /* If the currently selected machine wishes to override the units-per-bus
4515 * property of its default HBA interface type, do so now. */
4516 if (machine_class->units_per_default_bus) {
4517 override_max_devs(machine_class->block_default_type,
4518 machine_class->units_per_default_bus);
4519 }
4520
4521 /* open the virtual block devices */
4522 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4523 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4524
4525 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4526 loc_push_restore(&bdo->loc);
4527 qmp_blockdev_add(bdo->bdo, &error_fatal);
4528 loc_pop(&bdo->loc);
4529 qapi_free_BlockdevOptions(bdo->bdo);
4530 g_free(bdo);
4531 }
4532 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4533 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4534 NULL, NULL);
4535 }
4536 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4537 &machine_class->block_default_type, NULL)) {
4538 exit(1);
4539 }
4540
4541 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4542 CDROM_OPTS);
4543 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4544 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4545
4546 /*
4547 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4548 * depends on configure_accelerator() above.
4549 */
4550 monitor_init_globals();
4551
4552 if (qemu_opts_foreach(qemu_find_opts("mon"),
4553 mon_init_func, NULL, NULL)) {
4554 exit(1);
4555 }
4556
4557 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4558 exit(1);
4559 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4560 exit(1);
4561 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4562 exit(1);
4563 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4564 exit(1);
4565 }
4566 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4567 exit(1);
4568
4569 /* If no default VGA is requested, the default is "none". */
4570 if (default_vga) {
4571 if (machine_class->default_display) {
4572 vga_model = machine_class->default_display;
4573 } else if (vga_interface_available(VGA_CIRRUS)) {
4574 vga_model = "cirrus";
4575 } else if (vga_interface_available(VGA_STD)) {
4576 vga_model = "std";
4577 }
4578 }
4579 if (vga_model) {
4580 select_vgahw(vga_model);
4581 }
4582
4583 if (watchdog) {
4584 i = select_watchdog(watchdog);
4585 if (i > 0)
4586 exit (i == 1 ? 1 : 0);
4587 }
4588
4589 /* This checkpoint is required by replay to separate prior clock
4590 reading from the other reads, because timer polling functions query
4591 clock values from the log. */
4592 replay_checkpoint(CHECKPOINT_INIT);
4593 qdev_machine_init();
4594
4595 current_machine->ram_size = ram_size;
4596 current_machine->maxram_size = maxram_size;
4597 current_machine->ram_slots = ram_slots;
4598 current_machine->boot_order = boot_order;
4599
4600 /* parse features once if machine provides default cpu_type */
4601 current_machine->cpu_type = machine_class->default_cpu_type;
4602 if (cpu_model) {
4603 current_machine->cpu_type = parse_cpu_model(cpu_model);
4604 }
4605 parse_numa_opts(current_machine);
4606
4607 machine_run_board_init(current_machine);
4608
4609 realtime_init();
4610
4611 soundhw_init();
4612
4613 if (hax_enabled()) {
4614 hax_sync_vcpus();
4615 }
4616
4617 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4618 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4619 exit(1);
4620 }
4621
4622 /* init USB devices */
4623 if (machine_usb(current_machine)) {
4624 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4625 exit(1);
4626 }
4627
4628 /* Check if IGD GFX passthrough. */
4629 igd_gfx_passthru();
4630
4631 /* init generic devices */
4632 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4633 if (qemu_opts_foreach(qemu_find_opts("device"),
4634 device_init_func, NULL, NULL)) {
4635 exit(1);
4636 }
4637
4638 cpu_synchronize_all_post_init();
4639
4640 rom_reset_order_override();
4641
4642 /* Did we create any drives that we failed to create a device for? */
4643 drive_check_orphaned();
4644
4645 /* Don't warn about the default network setup that you get if
4646 * no command line -net or -netdev options are specified. There
4647 * are two cases that we would otherwise complain about:
4648 * (1) board doesn't support a NIC but the implicit "-net nic"
4649 * requested one
4650 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4651 * sets up a nic that isn't connected to anything.
4652 */
4653 if (!default_net) {
4654 net_check_clients();
4655 }
4656
4657
4658 if (boot_once) {
4659 qemu_boot_set(boot_once, &error_fatal);
4660 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4661 }
4662
4663 /* init local displays */
4664 ds = init_displaystate();
4665 qemu_display_init(ds, &dpy);
4666
4667 /* must be after terminal init, SDL library changes signal handlers */
4668 os_setup_signal_handling();
4669
4670 /* init remote displays */
4671 #ifdef CONFIG_VNC
4672 qemu_opts_foreach(qemu_find_opts("vnc"),
4673 vnc_init_func, NULL, NULL);
4674 #endif
4675
4676 if (using_spice) {
4677 qemu_spice_display_init();
4678 }
4679
4680 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4681 exit(1);
4682 }
4683
4684 qdev_machine_creation_done();
4685
4686 /* TODO: once all bus devices are qdevified, this should be done
4687 * when bus is created by qdev.c */
4688 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4689 qemu_run_machine_init_done_notifiers();
4690
4691 if (rom_check_and_register_reset() != 0) {
4692 error_report("rom check and register reset failed");
4693 exit(1);
4694 }
4695
4696 replay_start();
4697
4698 /* This checkpoint is required by replay to separate prior clock
4699 reading from the other reads, because timer polling functions query
4700 clock values from the log. */
4701 replay_checkpoint(CHECKPOINT_RESET);
4702 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4703 register_global_state();
4704 if (replay_mode != REPLAY_MODE_NONE) {
4705 replay_vmstate_init();
4706 } else if (loadvm) {
4707 Error *local_err = NULL;
4708 if (load_snapshot(loadvm, &local_err) < 0) {
4709 error_report_err(local_err);
4710 autostart = 0;
4711 }
4712 }
4713
4714 qdev_prop_check_globals();
4715 if (vmstate_dump_file) {
4716 /* dump and exit */
4717 dump_vmstate_json_to_file(vmstate_dump_file);
4718 return 0;
4719 }
4720
4721 if (incoming) {
4722 Error *local_err = NULL;
4723 qemu_start_incoming_migration(incoming, &local_err);
4724 if (local_err) {
4725 error_reportf_err(local_err, "-incoming %s: ", incoming);
4726 exit(1);
4727 }
4728 } else if (autostart) {
4729 vm_start();
4730 }
4731
4732 os_setup_post();
4733
4734 main_loop();
4735
4736 gdbserver_cleanup();
4737
4738 /* No more vcpu or device emulation activity beyond this point */
4739 vm_shutdown();
4740
4741 bdrv_close_all();
4742
4743 res_free();
4744
4745 /* vhost-user must be cleaned up before chardevs. */
4746 tpm_cleanup();
4747 net_cleanup();
4748 audio_cleanup();
4749 monitor_cleanup();
4750 qemu_chr_cleanup();
4751 user_creatable_cleanup();
4752 migration_object_finalize();
4753 /* TODO: unref root container, check all devices are ok */
4754
4755 return 0;
4756 }
Random patches