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include/standard-headers: add pvrdma related headers
[qemu.git] / vl.c
blob81724f5f17894fae378a0490da3aa8eb94053834
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 "sysemu/kvm.h"
98 #include "sysemu/hax.h"
99 #include "qapi/qobject-input-visitor.h"
100 #include "qapi-visit.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qmp-commands.h"
105 #include "qemu/main-loop.h"
106 #ifdef CONFIG_VIRTFS
107 #include "fsdev/qemu-fsdev.h"
108 #endif
109 #include "sysemu/qtest.h"
110
111 #include "disas/disas.h"
112
113
114 #include "slirp/libslirp.h"
115
116 #include "trace-root.h"
117 #include "trace/control.h"
118 #include "qemu/queue.h"
119 #include "sysemu/arch_init.h"
120
121 #include "ui/qemu-spice.h"
122 #include "qapi/string-input-visitor.h"
123 #include "qapi/opts-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "qapi-event.h"
126 #include "exec/semihost.h"
127 #include "crypto/init.h"
128 #include "sysemu/replay.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133 #define MAX_SCLP_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int request_opengl = -1;
140 int display_opengl;
141 const char* keyboard_layout = NULL;
142 ram_addr_t ram_size;
143 const char *mem_path = NULL;
144 int mem_prealloc = 0; /* force preallocation of physical target memory */
145 bool enable_mlock = false;
146 int nb_nics;
147 NICInfo nd_table[MAX_NICS];
148 int autostart;
149 static int rtc_utc = 1;
150 static int rtc_date_offset = -1; /* -1 means no change */
151 QEMUClockType rtc_clock;
152 int vga_interface_type = VGA_NONE;
153 static int full_screen = 0;
154 int no_frame;
155 int no_quit = 0;
156 static bool grab_on_hover;
157 Chardev *serial_hds[MAX_SERIAL_PORTS];
158 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
159 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
160 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
161 int win2k_install_hack = 0;
162 int singlestep = 0;
163 int smp_cpus;
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\n");
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, "HV 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 }
1766 qapi_free_GuestPanicInformation(info);
1767 }
1768 }
1769
1770 void qemu_system_reset_request(ShutdownCause reason)
1771 {
1772 if (no_reboot) {
1773 shutdown_requested = reason;
1774 } else {
1775 reset_requested = reason;
1776 }
1777 cpu_stop_current();
1778 qemu_notify_event();
1779 }
1780
1781 static void qemu_system_suspend(void)
1782 {
1783 pause_all_vcpus();
1784 notifier_list_notify(&suspend_notifiers, NULL);
1785 runstate_set(RUN_STATE_SUSPENDED);
1786 qapi_event_send_suspend(&error_abort);
1787 }
1788
1789 void qemu_system_suspend_request(void)
1790 {
1791 if (runstate_check(RUN_STATE_SUSPENDED)) {
1792 return;
1793 }
1794 suspend_requested = 1;
1795 cpu_stop_current();
1796 qemu_notify_event();
1797 }
1798
1799 void qemu_register_suspend_notifier(Notifier *notifier)
1800 {
1801 notifier_list_add(&suspend_notifiers, notifier);
1802 }
1803
1804 void qemu_system_wakeup_request(WakeupReason reason)
1805 {
1806 trace_system_wakeup_request(reason);
1807
1808 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1809 return;
1810 }
1811 if (!(wakeup_reason_mask & (1 << reason))) {
1812 return;
1813 }
1814 runstate_set(RUN_STATE_RUNNING);
1815 wakeup_reason = reason;
1816 qemu_notify_event();
1817 }
1818
1819 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1820 {
1821 if (enabled) {
1822 wakeup_reason_mask |= (1 << reason);
1823 } else {
1824 wakeup_reason_mask &= ~(1 << reason);
1825 }
1826 }
1827
1828 void qemu_register_wakeup_notifier(Notifier *notifier)
1829 {
1830 notifier_list_add(&wakeup_notifiers, notifier);
1831 }
1832
1833 void qemu_system_killed(int signal, pid_t pid)
1834 {
1835 shutdown_signal = signal;
1836 shutdown_pid = pid;
1837 no_shutdown = 0;
1838
1839 /* Cannot call qemu_system_shutdown_request directly because
1840 * we are in a signal handler.
1841 */
1842 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1843 qemu_notify_event();
1844 }
1845
1846 void qemu_system_shutdown_request(ShutdownCause reason)
1847 {
1848 trace_qemu_system_shutdown_request(reason);
1849 replay_shutdown_request(reason);
1850 shutdown_requested = reason;
1851 qemu_notify_event();
1852 }
1853
1854 static void qemu_system_powerdown(void)
1855 {
1856 qapi_event_send_powerdown(&error_abort);
1857 notifier_list_notify(&powerdown_notifiers, NULL);
1858 }
1859
1860 void qemu_system_powerdown_request(void)
1861 {
1862 trace_qemu_system_powerdown_request();
1863 powerdown_requested = 1;
1864 qemu_notify_event();
1865 }
1866
1867 void qemu_register_powerdown_notifier(Notifier *notifier)
1868 {
1869 notifier_list_add(&powerdown_notifiers, notifier);
1870 }
1871
1872 void qemu_system_debug_request(void)
1873 {
1874 debug_requested = 1;
1875 qemu_notify_event();
1876 }
1877
1878 static bool main_loop_should_exit(void)
1879 {
1880 RunState r;
1881 ShutdownCause request;
1882
1883 if (qemu_debug_requested()) {
1884 vm_stop(RUN_STATE_DEBUG);
1885 }
1886 if (qemu_suspend_requested()) {
1887 qemu_system_suspend();
1888 }
1889 request = qemu_shutdown_requested();
1890 if (request) {
1891 qemu_kill_report();
1892 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1893 &error_abort);
1894 if (no_shutdown) {
1895 vm_stop(RUN_STATE_SHUTDOWN);
1896 } else {
1897 return true;
1898 }
1899 }
1900 request = qemu_reset_requested();
1901 if (request) {
1902 pause_all_vcpus();
1903 qemu_system_reset(request);
1904 resume_all_vcpus();
1905 if (!runstate_check(RUN_STATE_RUNNING) &&
1906 !runstate_check(RUN_STATE_INMIGRATE)) {
1907 runstate_set(RUN_STATE_PRELAUNCH);
1908 }
1909 }
1910 if (qemu_wakeup_requested()) {
1911 pause_all_vcpus();
1912 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1913 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1914 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1915 resume_all_vcpus();
1916 qapi_event_send_wakeup(&error_abort);
1917 }
1918 if (qemu_powerdown_requested()) {
1919 qemu_system_powerdown();
1920 }
1921 if (qemu_vmstop_requested(&r)) {
1922 vm_stop(r);
1923 }
1924 return false;
1925 }
1926
1927 static void main_loop(void)
1928 {
1929 #ifdef CONFIG_PROFILER
1930 int64_t ti;
1931 #endif
1932 do {
1933 #ifdef CONFIG_PROFILER
1934 ti = profile_getclock();
1935 #endif
1936 main_loop_wait(false);
1937 #ifdef CONFIG_PROFILER
1938 dev_time += profile_getclock() - ti;
1939 #endif
1940 } while (!main_loop_should_exit());
1941 }
1942
1943 static void version(void)
1944 {
1945 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1946 QEMU_COPYRIGHT "\n");
1947 }
1948
1949 static void help(int exitcode)
1950 {
1951 version();
1952 printf("usage: %s [options] [disk_image]\n\n"
1953 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1954 error_get_progname());
1955
1956 #define QEMU_OPTIONS_GENERATE_HELP
1957 #include "qemu-options-wrapper.h"
1958
1959 printf("\nDuring emulation, the following keys are useful:\n"
1960 "ctrl-alt-f toggle full screen\n"
1961 "ctrl-alt-n switch to virtual console 'n'\n"
1962 "ctrl-alt toggle mouse and keyboard grab\n"
1963 "\n"
1964 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1965 "\n"
1966 QEMU_HELP_BOTTOM "\n");
1967
1968 exit(exitcode);
1969 }
1970
1971 #define HAS_ARG 0x0001
1972
1973 typedef struct QEMUOption {
1974 const char *name;
1975 int flags;
1976 int index;
1977 uint32_t arch_mask;
1978 } QEMUOption;
1979
1980 static const QEMUOption qemu_options[] = {
1981 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1982 #define QEMU_OPTIONS_GENERATE_OPTIONS
1983 #include "qemu-options-wrapper.h"
1984 { NULL },
1985 };
1986
1987 typedef struct VGAInterfaceInfo {
1988 const char *opt_name; /* option name */
1989 const char *name; /* human-readable name */
1990 /* Class names indicating that support is available.
1991 * If no class is specified, the interface is always available */
1992 const char *class_names[2];
1993 } VGAInterfaceInfo;
1994
1995 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1996 [VGA_NONE] = {
1997 .opt_name = "none",
1998 },
1999 [VGA_STD] = {
2000 .opt_name = "std",
2001 .name = "standard VGA",
2002 .class_names = { "VGA", "isa-vga" },
2003 },
2004 [VGA_CIRRUS] = {
2005 .opt_name = "cirrus",
2006 .name = "Cirrus VGA",
2007 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2008 },
2009 [VGA_VMWARE] = {
2010 .opt_name = "vmware",
2011 .name = "VMWare SVGA",
2012 .class_names = { "vmware-svga" },
2013 },
2014 [VGA_VIRTIO] = {
2015 .opt_name = "virtio",
2016 .name = "Virtio VGA",
2017 .class_names = { "virtio-vga" },
2018 },
2019 [VGA_QXL] = {
2020 .opt_name = "qxl",
2021 .name = "QXL VGA",
2022 .class_names = { "qxl-vga" },
2023 },
2024 [VGA_TCX] = {
2025 .opt_name = "tcx",
2026 .name = "TCX framebuffer",
2027 .class_names = { "SUNW,tcx" },
2028 },
2029 [VGA_CG3] = {
2030 .opt_name = "cg3",
2031 .name = "CG3 framebuffer",
2032 .class_names = { "cgthree" },
2033 },
2034 [VGA_XENFB] = {
2035 .opt_name = "xenfb",
2036 },
2037 };
2038
2039 static bool vga_interface_available(VGAInterfaceType t)
2040 {
2041 VGAInterfaceInfo *ti = &vga_interfaces[t];
2042
2043 assert(t < VGA_TYPE_MAX);
2044 return !ti->class_names[0] ||
2045 object_class_by_name(ti->class_names[0]) ||
2046 object_class_by_name(ti->class_names[1]);
2047 }
2048
2049 static void select_vgahw(const char *p)
2050 {
2051 const char *opts;
2052 int t;
2053
2054 assert(vga_interface_type == VGA_NONE);
2055 for (t = 0; t < VGA_TYPE_MAX; t++) {
2056 VGAInterfaceInfo *ti = &vga_interfaces[t];
2057 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2058 if (!vga_interface_available(t)) {
2059 error_report("%s not available", ti->name);
2060 exit(1);
2061 }
2062 vga_interface_type = t;
2063 break;
2064 }
2065 }
2066 if (t == VGA_TYPE_MAX) {
2067 invalid_vga:
2068 error_report("unknown vga type: %s", p);
2069 exit(1);
2070 }
2071 while (*opts) {
2072 const char *nextopt;
2073
2074 if (strstart(opts, ",retrace=", &nextopt)) {
2075 opts = nextopt;
2076 if (strstart(opts, "dumb", &nextopt))
2077 vga_retrace_method = VGA_RETRACE_DUMB;
2078 else if (strstart(opts, "precise", &nextopt))
2079 vga_retrace_method = VGA_RETRACE_PRECISE;
2080 else goto invalid_vga;
2081 } else goto invalid_vga;
2082 opts = nextopt;
2083 }
2084 }
2085
2086 typedef enum DisplayType {
2087 DT_DEFAULT,
2088 DT_CURSES,
2089 DT_SDL,
2090 DT_COCOA,
2091 DT_GTK,
2092 DT_EGL,
2093 DT_NONE,
2094 } DisplayType;
2095
2096 static DisplayType select_display(const char *p)
2097 {
2098 const char *opts;
2099 DisplayType display = DT_DEFAULT;
2100
2101 if (strstart(p, "sdl", &opts)) {
2102 #ifdef CONFIG_SDL
2103 display = DT_SDL;
2104 while (*opts) {
2105 const char *nextopt;
2106
2107 if (strstart(opts, ",frame=", &nextopt)) {
2108 opts = nextopt;
2109 if (strstart(opts, "on", &nextopt)) {
2110 no_frame = 0;
2111 } else if (strstart(opts, "off", &nextopt)) {
2112 no_frame = 1;
2113 } else {
2114 goto invalid_sdl_args;
2115 }
2116 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2117 opts = nextopt;
2118 if (strstart(opts, "on", &nextopt)) {
2119 alt_grab = 1;
2120 } else if (strstart(opts, "off", &nextopt)) {
2121 alt_grab = 0;
2122 } else {
2123 goto invalid_sdl_args;
2124 }
2125 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2126 opts = nextopt;
2127 if (strstart(opts, "on", &nextopt)) {
2128 ctrl_grab = 1;
2129 } else if (strstart(opts, "off", &nextopt)) {
2130 ctrl_grab = 0;
2131 } else {
2132 goto invalid_sdl_args;
2133 }
2134 } else if (strstart(opts, ",window_close=", &nextopt)) {
2135 opts = nextopt;
2136 if (strstart(opts, "on", &nextopt)) {
2137 no_quit = 0;
2138 } else if (strstart(opts, "off", &nextopt)) {
2139 no_quit = 1;
2140 } else {
2141 goto invalid_sdl_args;
2142 }
2143 } else if (strstart(opts, ",gl=", &nextopt)) {
2144 opts = nextopt;
2145 if (strstart(opts, "on", &nextopt)) {
2146 request_opengl = 1;
2147 } else if (strstart(opts, "off", &nextopt)) {
2148 request_opengl = 0;
2149 } else {
2150 goto invalid_sdl_args;
2151 }
2152 } else {
2153 invalid_sdl_args:
2154 error_report("invalid SDL option string");
2155 exit(1);
2156 }
2157 opts = nextopt;
2158 }
2159 #else
2160 error_report("SDL support is disabled");
2161 exit(1);
2162 #endif
2163 } else if (strstart(p, "vnc", &opts)) {
2164 if (*opts == '=') {
2165 vnc_parse(opts + 1, &error_fatal);
2166 } else {
2167 error_report("VNC requires a display argument vnc=<display>");
2168 exit(1);
2169 }
2170 } else if (strstart(p, "egl-headless", &opts)) {
2171 #ifdef CONFIG_OPENGL_DMABUF
2172 request_opengl = 1;
2173 display_opengl = 1;
2174 display = DT_EGL;
2175 #else
2176 error_report("egl support is disabled");
2177 exit(1);
2178 #endif
2179 } else if (strstart(p, "curses", &opts)) {
2180 #ifdef CONFIG_CURSES
2181 display = DT_CURSES;
2182 #else
2183 error_report("curses support is disabled");
2184 exit(1);
2185 #endif
2186 } else if (strstart(p, "gtk", &opts)) {
2187 #ifdef CONFIG_GTK
2188 display = DT_GTK;
2189 while (*opts) {
2190 const char *nextopt;
2191
2192 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2193 opts = nextopt;
2194 if (strstart(opts, "on", &nextopt)) {
2195 grab_on_hover = true;
2196 } else if (strstart(opts, "off", &nextopt)) {
2197 grab_on_hover = false;
2198 } else {
2199 goto invalid_gtk_args;
2200 }
2201 } else if (strstart(opts, ",gl=", &nextopt)) {
2202 opts = nextopt;
2203 if (strstart(opts, "on", &nextopt)) {
2204 request_opengl = 1;
2205 } else if (strstart(opts, "off", &nextopt)) {
2206 request_opengl = 0;
2207 } else {
2208 goto invalid_gtk_args;
2209 }
2210 } else {
2211 invalid_gtk_args:
2212 error_report("invalid GTK option string");
2213 exit(1);
2214 }
2215 opts = nextopt;
2216 }
2217 #else
2218 error_report("GTK support is disabled");
2219 exit(1);
2220 #endif
2221 } else if (strstart(p, "none", &opts)) {
2222 display = DT_NONE;
2223 } else {
2224 error_report("unknown display type");
2225 exit(1);
2226 }
2227
2228 return display;
2229 }
2230
2231 static int balloon_parse(const char *arg)
2232 {
2233 QemuOpts *opts;
2234
2235 if (strcmp(arg, "none") == 0) {
2236 return 0;
2237 }
2238
2239 if (!strncmp(arg, "virtio", 6)) {
2240 if (arg[6] == ',') {
2241 /* have params -> parse them */
2242 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2243 false);
2244 if (!opts)
2245 return -1;
2246 } else {
2247 /* create empty opts */
2248 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2249 &error_abort);
2250 }
2251 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2252 return 0;
2253 }
2254
2255 return -1;
2256 }
2257
2258 char *qemu_find_file(int type, const char *name)
2259 {
2260 int i;
2261 const char *subdir;
2262 char *buf;
2263
2264 /* Try the name as a straight path first */
2265 if (access(name, R_OK) == 0) {
2266 trace_load_file(name, name);
2267 return g_strdup(name);
2268 }
2269
2270 switch (type) {
2271 case QEMU_FILE_TYPE_BIOS:
2272 subdir = "";
2273 break;
2274 case QEMU_FILE_TYPE_KEYMAP:
2275 subdir = "keymaps/";
2276 break;
2277 default:
2278 abort();
2279 }
2280
2281 for (i = 0; i < data_dir_idx; i++) {
2282 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2283 if (access(buf, R_OK) == 0) {
2284 trace_load_file(name, buf);
2285 return buf;
2286 }
2287 g_free(buf);
2288 }
2289 return NULL;
2290 }
2291
2292 static void qemu_add_data_dir(const char *path)
2293 {
2294 int i;
2295
2296 if (path == NULL) {
2297 return;
2298 }
2299 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2300 return;
2301 }
2302 for (i = 0; i < data_dir_idx; i++) {
2303 if (strcmp(data_dir[i], path) == 0) {
2304 return; /* duplicate */
2305 }
2306 }
2307 data_dir[data_dir_idx++] = g_strdup(path);
2308 }
2309
2310 static inline bool nonempty_str(const char *str)
2311 {
2312 return str && *str;
2313 }
2314
2315 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2316 {
2317 gchar *buf;
2318 size_t size;
2319 const char *name, *file, *str;
2320 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2321
2322 if (fw_cfg == NULL) {
2323 error_report("fw_cfg device not available");
2324 return -1;
2325 }
2326 name = qemu_opt_get(opts, "name");
2327 file = qemu_opt_get(opts, "file");
2328 str = qemu_opt_get(opts, "string");
2329
2330 /* we need name and either a file or the content string */
2331 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2332 error_report("invalid argument(s)");
2333 return -1;
2334 }
2335 if (nonempty_str(file) && nonempty_str(str)) {
2336 error_report("file and string are mutually exclusive");
2337 return -1;
2338 }
2339 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2340 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2341 return -1;
2342 }
2343 if (strncmp(name, "opt/", 4) != 0) {
2344 warn_report("externally provided fw_cfg item names "
2345 "should be prefixed with \"opt/\"");
2346 }
2347 if (nonempty_str(str)) {
2348 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2349 buf = g_memdup(str, size);
2350 } else {
2351 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2352 error_report("can't load %s", file);
2353 return -1;
2354 }
2355 }
2356 /* For legacy, keep user files in a specific global order. */
2357 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2358 fw_cfg_add_file(fw_cfg, name, buf, size);
2359 fw_cfg_reset_order_override(fw_cfg);
2360 return 0;
2361 }
2362
2363 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2364 {
2365 return qdev_device_help(opts);
2366 }
2367
2368 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2369 {
2370 Error *err = NULL;
2371 DeviceState *dev;
2372
2373 dev = qdev_device_add(opts, &err);
2374 if (!dev) {
2375 error_report_err(err);
2376 return -1;
2377 }
2378 object_unref(OBJECT(dev));
2379 return 0;
2380 }
2381
2382 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2383 {
2384 Error *local_err = NULL;
2385
2386 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2387 if (local_err) {
2388 error_report_err(local_err);
2389 return -1;
2390 }
2391 exit(0);
2392 }
2393 return 0;
2394 }
2395
2396 #ifdef CONFIG_VIRTFS
2397 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2398 {
2399 return qemu_fsdev_add(opts);
2400 }
2401 #endif
2402
2403 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2404 {
2405 Chardev *chr;
2406 const char *chardev;
2407 const char *mode;
2408 int flags;
2409
2410 mode = qemu_opt_get(opts, "mode");
2411 if (mode == NULL) {
2412 mode = "readline";
2413 }
2414 if (strcmp(mode, "readline") == 0) {
2415 flags = MONITOR_USE_READLINE;
2416 } else if (strcmp(mode, "control") == 0) {
2417 flags = MONITOR_USE_CONTROL;
2418 } else {
2419 error_report("unknown monitor mode \"%s\"", mode);
2420 exit(1);
2421 }
2422
2423 if (qemu_opt_get_bool(opts, "pretty", 0))
2424 flags |= MONITOR_USE_PRETTY;
2425
2426 chardev = qemu_opt_get(opts, "chardev");
2427 chr = qemu_chr_find(chardev);
2428 if (chr == NULL) {
2429 error_report("chardev \"%s\" not found", chardev);
2430 exit(1);
2431 }
2432
2433 monitor_init(chr, flags);
2434 return 0;
2435 }
2436
2437 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2438 {
2439 static int monitor_device_index = 0;
2440 QemuOpts *opts;
2441 const char *p;
2442 char label[32];
2443
2444 if (strstart(optarg, "chardev:", &p)) {
2445 snprintf(label, sizeof(label), "%s", p);
2446 } else {
2447 snprintf(label, sizeof(label), "compat_monitor%d",
2448 monitor_device_index);
2449 opts = qemu_chr_parse_compat(label, optarg);
2450 if (!opts) {
2451 error_report("parse error: %s", optarg);
2452 exit(1);
2453 }
2454 }
2455
2456 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2457 qemu_opt_set(opts, "mode", mode, &error_abort);
2458 qemu_opt_set(opts, "chardev", label, &error_abort);
2459 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2460 monitor_device_index++;
2461 }
2462
2463 struct device_config {
2464 enum {
2465 DEV_USB, /* -usbdevice */
2466 DEV_BT, /* -bt */
2467 DEV_SERIAL, /* -serial */
2468 DEV_PARALLEL, /* -parallel */
2469 DEV_VIRTCON, /* -virtioconsole */
2470 DEV_DEBUGCON, /* -debugcon */
2471 DEV_GDB, /* -gdb, -s */
2472 DEV_SCLP, /* s390 sclp */
2473 } type;
2474 const char *cmdline;
2475 Location loc;
2476 QTAILQ_ENTRY(device_config) next;
2477 };
2478
2479 static QTAILQ_HEAD(, device_config) device_configs =
2480 QTAILQ_HEAD_INITIALIZER(device_configs);
2481
2482 static void add_device_config(int type, const char *cmdline)
2483 {
2484 struct device_config *conf;
2485
2486 conf = g_malloc0(sizeof(*conf));
2487 conf->type = type;
2488 conf->cmdline = cmdline;
2489 loc_save(&conf->loc);
2490 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2491 }
2492
2493 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2494 {
2495 struct device_config *conf;
2496 int rc;
2497
2498 QTAILQ_FOREACH(conf, &device_configs, next) {
2499 if (conf->type != type)
2500 continue;
2501 loc_push_restore(&conf->loc);
2502 rc = func(conf->cmdline);
2503 loc_pop(&conf->loc);
2504 if (rc) {
2505 return rc;
2506 }
2507 }
2508 return 0;
2509 }
2510
2511 static int serial_parse(const char *devname)
2512 {
2513 static int index = 0;
2514 char label[32];
2515
2516 if (strcmp(devname, "none") == 0)
2517 return 0;
2518 if (index == MAX_SERIAL_PORTS) {
2519 error_report("too many serial ports");
2520 exit(1);
2521 }
2522 snprintf(label, sizeof(label), "serial%d", index);
2523 serial_hds[index] = qemu_chr_new(label, devname);
2524 if (!serial_hds[index]) {
2525 error_report("could not connect serial device"
2526 " to character backend '%s'", devname);
2527 return -1;
2528 }
2529 index++;
2530 return 0;
2531 }
2532
2533 static int parallel_parse(const char *devname)
2534 {
2535 static int index = 0;
2536 char label[32];
2537
2538 if (strcmp(devname, "none") == 0)
2539 return 0;
2540 if (index == MAX_PARALLEL_PORTS) {
2541 error_report("too many parallel ports");
2542 exit(1);
2543 }
2544 snprintf(label, sizeof(label), "parallel%d", index);
2545 parallel_hds[index] = qemu_chr_new(label, devname);
2546 if (!parallel_hds[index]) {
2547 error_report("could not connect parallel device"
2548 " to character backend '%s'", devname);
2549 return -1;
2550 }
2551 index++;
2552 return 0;
2553 }
2554
2555 static int virtcon_parse(const char *devname)
2556 {
2557 QemuOptsList *device = qemu_find_opts("device");
2558 static int index = 0;
2559 char label[32];
2560 QemuOpts *bus_opts, *dev_opts;
2561
2562 if (strcmp(devname, "none") == 0)
2563 return 0;
2564 if (index == MAX_VIRTIO_CONSOLES) {
2565 error_report("too many virtio consoles");
2566 exit(1);
2567 }
2568
2569 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2570 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2571
2572 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2573 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2574
2575 snprintf(label, sizeof(label), "virtcon%d", index);
2576 virtcon_hds[index] = qemu_chr_new(label, devname);
2577 if (!virtcon_hds[index]) {
2578 error_report("could not connect virtio console"
2579 " to character backend '%s'", devname);
2580 return -1;
2581 }
2582 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2583
2584 index++;
2585 return 0;
2586 }
2587
2588 static int sclp_parse(const char *devname)
2589 {
2590 QemuOptsList *device = qemu_find_opts("device");
2591 static int index = 0;
2592 char label[32];
2593 QemuOpts *dev_opts;
2594
2595 if (strcmp(devname, "none") == 0) {
2596 return 0;
2597 }
2598 if (index == MAX_SCLP_CONSOLES) {
2599 error_report("too many sclp consoles");
2600 exit(1);
2601 }
2602
2603 assert(arch_type == QEMU_ARCH_S390X);
2604
2605 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2606 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2607
2608 snprintf(label, sizeof(label), "sclpcon%d", index);
2609 sclp_hds[index] = qemu_chr_new(label, devname);
2610 if (!sclp_hds[index]) {
2611 error_report("could not connect sclp console"
2612 " to character backend '%s'", devname);
2613 return -1;
2614 }
2615 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2616
2617 index++;
2618 return 0;
2619 }
2620
2621 static int debugcon_parse(const char *devname)
2622 {
2623 QemuOpts *opts;
2624
2625 if (!qemu_chr_new("debugcon", devname)) {
2626 exit(1);
2627 }
2628 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2629 if (!opts) {
2630 error_report("already have a debugcon device");
2631 exit(1);
2632 }
2633 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2634 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2635 return 0;
2636 }
2637
2638 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2639 {
2640 const MachineClass *mc1 = a, *mc2 = b;
2641 int res;
2642
2643 if (mc1->family == NULL) {
2644 if (mc2->family == NULL) {
2645 /* Compare standalone machine types against each other; they sort
2646 * in increasing order.
2647 */
2648 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2649 object_class_get_name(OBJECT_CLASS(mc2)));
2650 }
2651
2652 /* Standalone machine types sort after families. */
2653 return 1;
2654 }
2655
2656 if (mc2->family == NULL) {
2657 /* Families sort before standalone machine types. */
2658 return -1;
2659 }
2660
2661 /* Families sort between each other alphabetically increasingly. */
2662 res = strcmp(mc1->family, mc2->family);
2663 if (res != 0) {
2664 return res;
2665 }
2666
2667 /* Within the same family, machine types sort in decreasing order. */
2668 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2669 object_class_get_name(OBJECT_CLASS(mc1)));
2670 }
2671
2672 static MachineClass *machine_parse(const char *name)
2673 {
2674 MachineClass *mc = NULL;
2675 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2676
2677 if (name) {
2678 mc = find_machine(name);
2679 }
2680 if (mc) {
2681 g_slist_free(machines);
2682 return mc;
2683 }
2684 if (name && !is_help_option(name)) {
2685 error_report("unsupported machine type");
2686 error_printf("Use -machine help to list supported machines\n");
2687 } else {
2688 printf("Supported machines are:\n");
2689 machines = g_slist_sort(machines, machine_class_cmp);
2690 for (el = machines; el; el = el->next) {
2691 MachineClass *mc = el->data;
2692 if (mc->alias) {
2693 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2694 }
2695 printf("%-20s %s%s\n", mc->name, mc->desc,
2696 mc->is_default ? " (default)" : "");
2697 }
2698 }
2699
2700 g_slist_free(machines);
2701 exit(!name || !is_help_option(name));
2702 }
2703
2704 void qemu_add_exit_notifier(Notifier *notify)
2705 {
2706 notifier_list_add(&exit_notifiers, notify);
2707 }
2708
2709 void qemu_remove_exit_notifier(Notifier *notify)
2710 {
2711 notifier_remove(notify);
2712 }
2713
2714 static void qemu_run_exit_notifiers(void)
2715 {
2716 notifier_list_notify(&exit_notifiers, NULL);
2717 }
2718
2719 static bool machine_init_done;
2720
2721 void qemu_add_machine_init_done_notifier(Notifier *notify)
2722 {
2723 notifier_list_add(&machine_init_done_notifiers, notify);
2724 if (machine_init_done) {
2725 notify->notify(notify, NULL);
2726 }
2727 }
2728
2729 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2730 {
2731 notifier_remove(notify);
2732 }
2733
2734 static void qemu_run_machine_init_done_notifiers(void)
2735 {
2736 notifier_list_notify(&machine_init_done_notifiers, NULL);
2737 machine_init_done = true;
2738 }
2739
2740 static const QEMUOption *lookup_opt(int argc, char **argv,
2741 const char **poptarg, int *poptind)
2742 {
2743 const QEMUOption *popt;
2744 int optind = *poptind;
2745 char *r = argv[optind];
2746 const char *optarg;
2747
2748 loc_set_cmdline(argv, optind, 1);
2749 optind++;
2750 /* Treat --foo the same as -foo. */
2751 if (r[1] == '-')
2752 r++;
2753 popt = qemu_options;
2754 for(;;) {
2755 if (!popt->name) {
2756 error_report("invalid option");
2757 exit(1);
2758 }
2759 if (!strcmp(popt->name, r + 1))
2760 break;
2761 popt++;
2762 }
2763 if (popt->flags & HAS_ARG) {
2764 if (optind >= argc) {
2765 error_report("requires an argument");
2766 exit(1);
2767 }
2768 optarg = argv[optind++];
2769 loc_set_cmdline(argv, optind - 2, 2);
2770 } else {
2771 optarg = NULL;
2772 }
2773
2774 *poptarg = optarg;
2775 *poptind = optind;
2776
2777 return popt;
2778 }
2779
2780 static MachineClass *select_machine(void)
2781 {
2782 MachineClass *machine_class = find_default_machine();
2783 const char *optarg;
2784 QemuOpts *opts;
2785 Location loc;
2786
2787 loc_push_none(&loc);
2788
2789 opts = qemu_get_machine_opts();
2790 qemu_opts_loc_restore(opts);
2791
2792 optarg = qemu_opt_get(opts, "type");
2793 if (optarg) {
2794 machine_class = machine_parse(optarg);
2795 }
2796
2797 if (!machine_class) {
2798 error_report("No machine specified, and there is no default");
2799 error_printf("Use -machine help to list supported machines\n");
2800 exit(1);
2801 }
2802
2803 loc_pop(&loc);
2804 return machine_class;
2805 }
2806
2807 static int machine_set_property(void *opaque,
2808 const char *name, const char *value,
2809 Error **errp)
2810 {
2811 Object *obj = OBJECT(opaque);
2812 Error *local_err = NULL;
2813 char *p, *qom_name;
2814
2815 if (strcmp(name, "type") == 0) {
2816 return 0;
2817 }
2818
2819 qom_name = g_strdup(name);
2820 for (p = qom_name; *p; p++) {
2821 if (*p == '_') {
2822 *p = '-';
2823 }
2824 }
2825
2826 object_property_parse(obj, value, qom_name, &local_err);
2827 g_free(qom_name);
2828
2829 if (local_err) {
2830 error_report_err(local_err);
2831 return -1;
2832 }
2833
2834 return 0;
2835 }
2836
2837
2838 /*
2839 * Initial object creation happens before all other
2840 * QEMU data types are created. The majority of objects
2841 * can be created at this point. The rng-egd object
2842 * cannot be created here, as it depends on the chardev
2843 * already existing.
2844 */
2845 static bool object_create_initial(const char *type)
2846 {
2847 if (g_str_equal(type, "rng-egd") ||
2848 g_str_has_prefix(type, "pr-manager-")) {
2849 return false;
2850 }
2851
2852 /*
2853 * return false for concrete netfilters since
2854 * they depend on netdevs already existing
2855 */
2856 if (g_str_equal(type, "filter-buffer") ||
2857 g_str_equal(type, "filter-dump") ||
2858 g_str_equal(type, "filter-mirror") ||
2859 g_str_equal(type, "filter-redirector") ||
2860 g_str_equal(type, "colo-compare") ||
2861 g_str_equal(type, "filter-rewriter") ||
2862 g_str_equal(type, "filter-replay")) {
2863 return false;
2864 }
2865
2866 /* Memory allocation by backends needs to be done
2867 * after configure_accelerator() (due to the tcg_enabled()
2868 * checks at memory_region_init_*()).
2869 *
2870 * Also, allocation of large amounts of memory may delay
2871 * chardev initialization for too long, and trigger timeouts
2872 * on software that waits for a monitor socket to be created
2873 * (e.g. libvirt).
2874 */
2875 if (g_str_has_prefix(type, "memory-backend-")) {
2876 return false;
2877 }
2878
2879 return true;
2880 }
2881
2882
2883 /*
2884 * The remainder of object creation happens after the
2885 * creation of chardev, fsdev, net clients and device data types.
2886 */
2887 static bool object_create_delayed(const char *type)
2888 {
2889 return !object_create_initial(type);
2890 }
2891
2892
2893 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2894 MachineClass *mc)
2895 {
2896 uint64_t sz;
2897 const char *mem_str;
2898 const char *maxmem_str, *slots_str;
2899 const ram_addr_t default_ram_size = mc->default_ram_size;
2900 QemuOpts *opts = qemu_find_opts_singleton("memory");
2901 Location loc;
2902
2903 loc_push_none(&loc);
2904 qemu_opts_loc_restore(opts);
2905
2906 sz = 0;
2907 mem_str = qemu_opt_get(opts, "size");
2908 if (mem_str) {
2909 if (!*mem_str) {
2910 error_report("missing 'size' option value");
2911 exit(EXIT_FAILURE);
2912 }
2913
2914 sz = qemu_opt_get_size(opts, "size", ram_size);
2915
2916 /* Fix up legacy suffix-less format */
2917 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2918 uint64_t overflow_check = sz;
2919
2920 sz <<= 20;
2921 if ((sz >> 20) != overflow_check) {
2922 error_report("too large 'size' option value");
2923 exit(EXIT_FAILURE);
2924 }
2925 }
2926 }
2927
2928 /* backward compatibility behaviour for case "-m 0" */
2929 if (sz == 0) {
2930 sz = default_ram_size;
2931 }
2932
2933 sz = QEMU_ALIGN_UP(sz, 8192);
2934 ram_size = sz;
2935 if (ram_size != sz) {
2936 error_report("ram size too large");
2937 exit(EXIT_FAILURE);
2938 }
2939
2940 /* store value for the future use */
2941 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2942 *maxram_size = ram_size;
2943
2944 maxmem_str = qemu_opt_get(opts, "maxmem");
2945 slots_str = qemu_opt_get(opts, "slots");
2946 if (maxmem_str && slots_str) {
2947 uint64_t slots;
2948
2949 sz = qemu_opt_get_size(opts, "maxmem", 0);
2950 slots = qemu_opt_get_number(opts, "slots", 0);
2951 if (sz < ram_size) {
2952 error_report("invalid value of -m option maxmem: "
2953 "maximum memory size (0x%" PRIx64 ") must be at least "
2954 "the initial memory size (0x" RAM_ADDR_FMT ")",
2955 sz, ram_size);
2956 exit(EXIT_FAILURE);
2957 } else if (sz > ram_size) {
2958 if (!slots) {
2959 error_report("invalid value of -m option: maxmem was "
2960 "specified, but no hotplug slots were specified");
2961 exit(EXIT_FAILURE);
2962 }
2963 } else if (slots) {
2964 error_report("invalid value of -m option maxmem: "
2965 "memory slots were specified but maximum memory size "
2966 "(0x%" PRIx64 ") is equal to the initial memory size "
2967 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2968 exit(EXIT_FAILURE);
2969 }
2970
2971 *maxram_size = sz;
2972 *ram_slots = slots;
2973 } else if ((!maxmem_str && slots_str) ||
2974 (maxmem_str && !slots_str)) {
2975 error_report("invalid -m option value: missing "
2976 "'%s' option", slots_str ? "maxmem" : "slots");
2977 exit(EXIT_FAILURE);
2978 }
2979
2980 loc_pop(&loc);
2981 }
2982
2983 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2984 {
2985 GlobalProperty *g;
2986
2987 g = g_malloc0(sizeof(*g));
2988 g->driver = qemu_opt_get(opts, "driver");
2989 g->property = qemu_opt_get(opts, "property");
2990 g->value = qemu_opt_get(opts, "value");
2991 g->user_provided = true;
2992 g->errp = &error_fatal;
2993 qdev_prop_register_global(g);
2994 return 0;
2995 }
2996
2997 static int qemu_read_default_config_file(void)
2998 {
2999 int ret;
3000
3001 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3002 if (ret < 0 && ret != -ENOENT) {
3003 return ret;
3004 }
3005
3006 return 0;
3007 }
3008
3009 static void user_register_global_props(void)
3010 {
3011 qemu_opts_foreach(qemu_find_opts("global"),
3012 global_init_func, NULL, NULL);
3013 }
3014
3015 /*
3016 * Note: we should see that these properties are actually having a
3017 * priority: accel < machine < user. This means e.g. when user
3018 * specifies something in "-global", it'll always be used with highest
3019 * priority than either machine/accelerator compat properties.
3020 */
3021 static void register_global_properties(MachineState *ms)
3022 {
3023 accel_register_compat_props(ms->accelerator);
3024 machine_register_compat_props(ms);
3025 user_register_global_props();
3026 }
3027
3028 int main(int argc, char **argv, char **envp)
3029 {
3030 int i;
3031 int snapshot, linux_boot;
3032 const char *initrd_filename;
3033 const char *kernel_filename, *kernel_cmdline;
3034 const char *boot_order = NULL;
3035 const char *boot_once = NULL;
3036 DisplayState *ds;
3037 QemuOpts *opts, *machine_opts;
3038 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3039 QemuOptsList *olist;
3040 int optind;
3041 const char *optarg;
3042 const char *loadvm = NULL;
3043 MachineClass *machine_class;
3044 const char *cpu_model;
3045 const char *vga_model = NULL;
3046 const char *qtest_chrdev = NULL;
3047 const char *qtest_log = NULL;
3048 const char *pid_file = NULL;
3049 const char *incoming = NULL;
3050 bool userconfig = true;
3051 bool nographic = false;
3052 DisplayType display_type = DT_DEFAULT;
3053 int display_remote = 0;
3054 const char *log_mask = NULL;
3055 const char *log_file = NULL;
3056 char *trace_file = NULL;
3057 ram_addr_t maxram_size;
3058 uint64_t ram_slots = 0;
3059 FILE *vmstate_dump_file = NULL;
3060 Error *main_loop_err = NULL;
3061 Error *err = NULL;
3062 bool list_data_dirs = false;
3063 char *dir, **dirs;
3064 typedef struct BlockdevOptions_queue {
3065 BlockdevOptions *bdo;
3066 Location loc;
3067 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3068 } BlockdevOptions_queue;
3069 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3070 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3071
3072 module_call_init(MODULE_INIT_TRACE);
3073
3074 qemu_init_cpu_list();
3075 qemu_init_cpu_loop();
3076 qemu_mutex_lock_iothread();
3077
3078 atexit(qemu_run_exit_notifiers);
3079 error_set_progname(argv[0]);
3080 qemu_init_exec_dir(argv[0]);
3081
3082 module_call_init(MODULE_INIT_QOM);
3083 monitor_init_qmp_commands();
3084
3085 qemu_add_opts(&qemu_drive_opts);
3086 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3087 qemu_add_drive_opts(&qemu_common_drive_opts);
3088 qemu_add_drive_opts(&qemu_drive_opts);
3089 qemu_add_drive_opts(&bdrv_runtime_opts);
3090 qemu_add_opts(&qemu_chardev_opts);
3091 qemu_add_opts(&qemu_device_opts);
3092 qemu_add_opts(&qemu_netdev_opts);
3093 qemu_add_opts(&qemu_net_opts);
3094 qemu_add_opts(&qemu_rtc_opts);
3095 qemu_add_opts(&qemu_global_opts);
3096 qemu_add_opts(&qemu_mon_opts);
3097 qemu_add_opts(&qemu_trace_opts);
3098 qemu_add_opts(&qemu_option_rom_opts);
3099 qemu_add_opts(&qemu_machine_opts);
3100 qemu_add_opts(&qemu_accel_opts);
3101 qemu_add_opts(&qemu_mem_opts);
3102 qemu_add_opts(&qemu_smp_opts);
3103 qemu_add_opts(&qemu_boot_opts);
3104 qemu_add_opts(&qemu_sandbox_opts);
3105 qemu_add_opts(&qemu_add_fd_opts);
3106 qemu_add_opts(&qemu_object_opts);
3107 qemu_add_opts(&qemu_tpmdev_opts);
3108 qemu_add_opts(&qemu_realtime_opts);
3109 qemu_add_opts(&qemu_msg_opts);
3110 qemu_add_opts(&qemu_name_opts);
3111 qemu_add_opts(&qemu_numa_opts);
3112 qemu_add_opts(&qemu_icount_opts);
3113 qemu_add_opts(&qemu_semihosting_config_opts);
3114 qemu_add_opts(&qemu_fw_cfg_opts);
3115 module_call_init(MODULE_INIT_OPTS);
3116
3117 runstate_init();
3118
3119 if (qcrypto_init(&err) < 0) {
3120 error_reportf_err(err, "cannot initialize crypto: ");
3121 exit(1);
3122 }
3123 rtc_clock = QEMU_CLOCK_HOST;
3124
3125 QLIST_INIT (&vm_change_state_head);
3126 os_setup_early_signal_handling();
3127
3128 cpu_model = NULL;
3129 snapshot = 0;
3130
3131 nb_nics = 0;
3132
3133 bdrv_init_with_whitelist();
3134
3135 autostart = 1;
3136
3137 /* first pass of option parsing */
3138 optind = 1;
3139 while (optind < argc) {
3140 if (argv[optind][0] != '-') {
3141 /* disk image */
3142 optind++;
3143 } else {
3144 const QEMUOption *popt;
3145
3146 popt = lookup_opt(argc, argv, &optarg, &optind);
3147 switch (popt->index) {
3148 case QEMU_OPTION_nodefconfig:
3149 case QEMU_OPTION_nouserconfig:
3150 userconfig = false;
3151 break;
3152 }
3153 }
3154 }
3155
3156 if (userconfig) {
3157 if (qemu_read_default_config_file() < 0) {
3158 exit(1);
3159 }
3160 }
3161
3162 /* second pass of option parsing */
3163 optind = 1;
3164 for(;;) {
3165 if (optind >= argc)
3166 break;
3167 if (argv[optind][0] != '-') {
3168 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3169 } else {
3170 const QEMUOption *popt;
3171
3172 popt = lookup_opt(argc, argv, &optarg, &optind);
3173 if (!(popt->arch_mask & arch_type)) {
3174 error_report("Option not supported for this target");
3175 exit(1);
3176 }
3177 switch(popt->index) {
3178 case QEMU_OPTION_no_kvm_irqchip: {
3179 olist = qemu_find_opts("machine");
3180 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3181 break;
3182 }
3183 case QEMU_OPTION_cpu:
3184 /* hw initialization will check this */
3185 cpu_model = optarg;
3186 break;
3187 case QEMU_OPTION_hda:
3188 case QEMU_OPTION_hdb:
3189 case QEMU_OPTION_hdc:
3190 case QEMU_OPTION_hdd:
3191 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3192 HD_OPTS);
3193 break;
3194 case QEMU_OPTION_blockdev:
3195 {
3196 Visitor *v;
3197 BlockdevOptions_queue *bdo;
3198
3199 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3200 if (!v) {
3201 error_report_err(err);
3202 exit(1);
3203 }
3204
3205 bdo = g_new(BlockdevOptions_queue, 1);
3206 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3207 &error_fatal);
3208 visit_free(v);
3209 loc_save(&bdo->loc);
3210 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3211 break;
3212 }
3213 case QEMU_OPTION_drive:
3214 if (drive_def(optarg) == NULL) {
3215 exit(1);
3216 }
3217 break;
3218 case QEMU_OPTION_set:
3219 if (qemu_set_option(optarg) != 0)
3220 exit(1);
3221 break;
3222 case QEMU_OPTION_global:
3223 if (qemu_global_option(optarg) != 0)
3224 exit(1);
3225 break;
3226 case QEMU_OPTION_mtdblock:
3227 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3228 break;
3229 case QEMU_OPTION_sd:
3230 drive_add(IF_SD, -1, optarg, SD_OPTS);
3231 break;
3232 case QEMU_OPTION_pflash:
3233 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3234 break;
3235 case QEMU_OPTION_snapshot:
3236 snapshot = 1;
3237 break;
3238 case QEMU_OPTION_numa:
3239 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3240 optarg, true);
3241 if (!opts) {
3242 exit(1);
3243 }
3244 break;
3245 case QEMU_OPTION_display:
3246 display_type = select_display(optarg);
3247 break;
3248 case QEMU_OPTION_nographic:
3249 olist = qemu_find_opts("machine");
3250 qemu_opts_parse_noisily(olist, "graphics=off", false);
3251 nographic = true;
3252 display_type = DT_NONE;
3253 break;
3254 case QEMU_OPTION_curses:
3255 #ifdef CONFIG_CURSES
3256 display_type = DT_CURSES;
3257 #else
3258 error_report("curses support is disabled");
3259 exit(1);
3260 #endif
3261 break;
3262 case QEMU_OPTION_portrait:
3263 graphic_rotate = 90;
3264 break;
3265 case QEMU_OPTION_rotate:
3266 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3267 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3268 graphic_rotate != 180 && graphic_rotate != 270) {
3269 error_report("only 90, 180, 270 deg rotation is available");
3270 exit(1);
3271 }
3272 break;
3273 case QEMU_OPTION_kernel:
3274 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3275 &error_abort);
3276 break;
3277 case QEMU_OPTION_initrd:
3278 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3279 &error_abort);
3280 break;
3281 case QEMU_OPTION_append:
3282 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3283 &error_abort);
3284 break;
3285 case QEMU_OPTION_dtb:
3286 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3287 &error_abort);
3288 break;
3289 case QEMU_OPTION_cdrom:
3290 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3291 break;
3292 case QEMU_OPTION_boot:
3293 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3294 optarg, true);
3295 if (!opts) {
3296 exit(1);
3297 }
3298 break;
3299 case QEMU_OPTION_fda:
3300 case QEMU_OPTION_fdb:
3301 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3302 optarg, FD_OPTS);
3303 break;
3304 case QEMU_OPTION_no_fd_bootchk:
3305 fd_bootchk = 0;
3306 break;
3307 case QEMU_OPTION_netdev:
3308 default_net = 0;
3309 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3310 exit(1);
3311 }
3312 break;
3313 case QEMU_OPTION_net:
3314 default_net = 0;
3315 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3316 exit(1);
3317 }
3318 break;
3319 #ifdef CONFIG_LIBISCSI
3320 case QEMU_OPTION_iscsi:
3321 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3322 optarg, false);
3323 if (!opts) {
3324 exit(1);
3325 }
3326 break;
3327 #endif
3328 #ifdef CONFIG_SLIRP
3329 case QEMU_OPTION_tftp:
3330 error_report("The -tftp option is deprecated. "
3331 "Please use '-netdev user,tftp=...' instead.");
3332 legacy_tftp_prefix = optarg;
3333 break;
3334 case QEMU_OPTION_bootp:
3335 error_report("The -bootp option is deprecated. "
3336 "Please use '-netdev user,bootfile=...' instead.");
3337 legacy_bootp_filename = optarg;
3338 break;
3339 case QEMU_OPTION_redir:
3340 error_report("The -redir option is deprecated. "
3341 "Please use '-netdev user,hostfwd=...' instead.");
3342 if (net_slirp_redir(optarg) < 0)
3343 exit(1);
3344 break;
3345 #endif
3346 case QEMU_OPTION_bt:
3347 add_device_config(DEV_BT, optarg);
3348 break;
3349 case QEMU_OPTION_audio_help:
3350 AUD_help ();
3351 exit (0);
3352 break;
3353 case QEMU_OPTION_soundhw:
3354 select_soundhw (optarg);
3355 break;
3356 case QEMU_OPTION_h:
3357 help(0);
3358 break;
3359 case QEMU_OPTION_version:
3360 version();
3361 exit(0);
3362 break;
3363 case QEMU_OPTION_m:
3364 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3365 optarg, true);
3366 if (!opts) {
3367 exit(EXIT_FAILURE);
3368 }
3369 break;
3370 #ifdef CONFIG_TPM
3371 case QEMU_OPTION_tpmdev:
3372 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3373 exit(1);
3374 }
3375 break;
3376 #endif
3377 case QEMU_OPTION_mempath:
3378 mem_path = optarg;
3379 break;
3380 case QEMU_OPTION_mem_prealloc:
3381 mem_prealloc = 1;
3382 break;
3383 case QEMU_OPTION_d:
3384 log_mask = optarg;
3385 break;
3386 case QEMU_OPTION_D:
3387 log_file = optarg;
3388 break;
3389 case QEMU_OPTION_DFILTER:
3390 qemu_set_dfilter_ranges(optarg, &error_fatal);
3391 break;
3392 case QEMU_OPTION_s:
3393 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3394 break;
3395 case QEMU_OPTION_gdb:
3396 add_device_config(DEV_GDB, optarg);
3397 break;
3398 case QEMU_OPTION_L:
3399 if (is_help_option(optarg)) {
3400 list_data_dirs = true;
3401 } else {
3402 qemu_add_data_dir(optarg);
3403 }
3404 break;
3405 case QEMU_OPTION_bios:
3406 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3407 &error_abort);
3408 break;
3409 case QEMU_OPTION_singlestep:
3410 singlestep = 1;
3411 break;
3412 case QEMU_OPTION_S:
3413 autostart = 0;
3414 break;
3415 case QEMU_OPTION_k:
3416 keyboard_layout = optarg;
3417 break;
3418 case QEMU_OPTION_localtime:
3419 rtc_utc = 0;
3420 break;
3421 case QEMU_OPTION_vga:
3422 vga_model = optarg;
3423 default_vga = 0;
3424 break;
3425 case QEMU_OPTION_g:
3426 {
3427 const char *p;
3428 int w, h, depth;
3429 p = optarg;
3430 w = strtol(p, (char **)&p, 10);
3431 if (w <= 0) {
3432 graphic_error:
3433 error_report("invalid resolution or depth");
3434 exit(1);
3435 }
3436 if (*p != 'x')
3437 goto graphic_error;
3438 p++;
3439 h = strtol(p, (char **)&p, 10);
3440 if (h <= 0)
3441 goto graphic_error;
3442 if (*p == 'x') {
3443 p++;
3444 depth = strtol(p, (char **)&p, 10);
3445 if (depth != 8 && depth != 15 && depth != 16 &&
3446 depth != 24 && depth != 32)
3447 goto graphic_error;
3448 } else if (*p == '\0') {
3449 depth = graphic_depth;
3450 } else {
3451 goto graphic_error;
3452 }
3453
3454 graphic_width = w;
3455 graphic_height = h;
3456 graphic_depth = depth;
3457 }
3458 break;
3459 case QEMU_OPTION_echr:
3460 {
3461 char *r;
3462 term_escape_char = strtol(optarg, &r, 0);
3463 if (r == optarg)
3464 printf("Bad argument to echr\n");
3465 break;
3466 }
3467 case QEMU_OPTION_monitor:
3468 default_monitor = 0;
3469 if (strncmp(optarg, "none", 4)) {
3470 monitor_parse(optarg, "readline", false);
3471 }
3472 break;
3473 case QEMU_OPTION_qmp:
3474 monitor_parse(optarg, "control", false);
3475 default_monitor = 0;
3476 break;
3477 case QEMU_OPTION_qmp_pretty:
3478 monitor_parse(optarg, "control", true);
3479 default_monitor = 0;
3480 break;
3481 case QEMU_OPTION_mon:
3482 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3483 true);
3484 if (!opts) {
3485 exit(1);
3486 }
3487 default_monitor = 0;
3488 break;
3489 case QEMU_OPTION_chardev:
3490 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3491 optarg, true);
3492 if (!opts) {
3493 exit(1);
3494 }
3495 break;
3496 case QEMU_OPTION_fsdev:
3497 olist = qemu_find_opts("fsdev");
3498 if (!olist) {
3499 error_report("fsdev support is disabled");
3500 exit(1);
3501 }
3502 opts = qemu_opts_parse_noisily(olist, optarg, true);
3503 if (!opts) {
3504 exit(1);
3505 }
3506 break;
3507 case QEMU_OPTION_virtfs: {
3508 QemuOpts *fsdev;
3509 QemuOpts *device;
3510 const char *writeout, *sock_fd, *socket, *path, *security_model;
3511
3512 olist = qemu_find_opts("virtfs");
3513 if (!olist) {
3514 error_report("virtfs support is disabled");
3515 exit(1);
3516 }
3517 opts = qemu_opts_parse_noisily(olist, optarg, true);
3518 if (!opts) {
3519 exit(1);
3520 }
3521
3522 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3523 qemu_opt_get(opts, "mount_tag") == NULL) {
3524 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3525 exit(1);
3526 }
3527 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3528 qemu_opts_id(opts) ?:
3529 qemu_opt_get(opts, "mount_tag"),
3530 1, NULL);
3531 if (!fsdev) {
3532 error_report("duplicate or invalid fsdev id: %s",
3533 qemu_opt_get(opts, "mount_tag"));
3534 exit(1);
3535 }
3536
3537 writeout = qemu_opt_get(opts, "writeout");
3538 if (writeout) {
3539 #ifdef CONFIG_SYNC_FILE_RANGE
3540 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3541 #else
3542 error_report("writeout=immediate not supported "
3543 "on this platform");
3544 exit(1);
3545 #endif
3546 }
3547 qemu_opt_set(fsdev, "fsdriver",
3548 qemu_opt_get(opts, "fsdriver"), &error_abort);
3549 path = qemu_opt_get(opts, "path");
3550 if (path) {
3551 qemu_opt_set(fsdev, "path", path, &error_abort);
3552 }
3553 security_model = qemu_opt_get(opts, "security_model");
3554 if (security_model) {
3555 qemu_opt_set(fsdev, "security_model", security_model,
3556 &error_abort);
3557 }
3558 socket = qemu_opt_get(opts, "socket");
3559 if (socket) {
3560 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3561 }
3562 sock_fd = qemu_opt_get(opts, "sock_fd");
3563 if (sock_fd) {
3564 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3565 }
3566
3567 qemu_opt_set_bool(fsdev, "readonly",
3568 qemu_opt_get_bool(opts, "readonly", 0),
3569 &error_abort);
3570 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3571 &error_abort);
3572 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3573 qemu_opt_set(device, "fsdev",
3574 qemu_opts_id(fsdev), &error_abort);
3575 qemu_opt_set(device, "mount_tag",
3576 qemu_opt_get(opts, "mount_tag"), &error_abort);
3577 break;
3578 }
3579 case QEMU_OPTION_virtfs_synth: {
3580 QemuOpts *fsdev;
3581 QemuOpts *device;
3582
3583 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3584 1, NULL);
3585 if (!fsdev) {
3586 error_report("duplicate option: %s", "virtfs_synth");
3587 exit(1);
3588 }
3589 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3590
3591 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3592 &error_abort);
3593 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3594 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3595 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3596 break;
3597 }
3598 case QEMU_OPTION_serial:
3599 add_device_config(DEV_SERIAL, optarg);
3600 default_serial = 0;
3601 if (strncmp(optarg, "mon:", 4) == 0) {
3602 default_monitor = 0;
3603 }
3604 break;
3605 case QEMU_OPTION_watchdog:
3606 if (watchdog) {
3607 error_report("only one watchdog option may be given");
3608 return 1;
3609 }
3610 watchdog = optarg;
3611 break;
3612 case QEMU_OPTION_watchdog_action:
3613 if (select_watchdog_action(optarg) == -1) {
3614 error_report("unknown -watchdog-action parameter");
3615 exit(1);
3616 }
3617 break;
3618 case QEMU_OPTION_virtiocon:
3619 add_device_config(DEV_VIRTCON, optarg);
3620 default_virtcon = 0;
3621 if (strncmp(optarg, "mon:", 4) == 0) {
3622 default_monitor = 0;
3623 }
3624 break;
3625 case QEMU_OPTION_parallel:
3626 add_device_config(DEV_PARALLEL, optarg);
3627 default_parallel = 0;
3628 if (strncmp(optarg, "mon:", 4) == 0) {
3629 default_monitor = 0;
3630 }
3631 break;
3632 case QEMU_OPTION_debugcon:
3633 add_device_config(DEV_DEBUGCON, optarg);
3634 break;
3635 case QEMU_OPTION_loadvm:
3636 loadvm = optarg;
3637 break;
3638 case QEMU_OPTION_full_screen:
3639 full_screen = 1;
3640 break;
3641 case QEMU_OPTION_no_frame:
3642 no_frame = 1;
3643 break;
3644 case QEMU_OPTION_alt_grab:
3645 alt_grab = 1;
3646 break;
3647 case QEMU_OPTION_ctrl_grab:
3648 ctrl_grab = 1;
3649 break;
3650 case QEMU_OPTION_no_quit:
3651 no_quit = 1;
3652 break;
3653 case QEMU_OPTION_sdl:
3654 #ifdef CONFIG_SDL
3655 display_type = DT_SDL;
3656 break;
3657 #else
3658 error_report("SDL support is disabled");
3659 exit(1);
3660 #endif
3661 case QEMU_OPTION_pidfile:
3662 pid_file = optarg;
3663 break;
3664 case QEMU_OPTION_win2k_hack:
3665 win2k_install_hack = 1;
3666 break;
3667 case QEMU_OPTION_rtc_td_hack: {
3668 static GlobalProperty slew_lost_ticks = {
3669 .driver = "mc146818rtc",
3670 .property = "lost_tick_policy",
3671 .value = "slew",
3672 };
3673
3674 qdev_prop_register_global(&slew_lost_ticks);
3675 break;
3676 }
3677 case QEMU_OPTION_acpitable:
3678 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3679 optarg, true);
3680 if (!opts) {
3681 exit(1);
3682 }
3683 acpi_table_add(opts, &error_fatal);
3684 break;
3685 case QEMU_OPTION_smbios:
3686 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3687 optarg, false);
3688 if (!opts) {
3689 exit(1);
3690 }
3691 smbios_entry_add(opts, &error_fatal);
3692 break;
3693 case QEMU_OPTION_fwcfg:
3694 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3695 optarg, true);
3696 if (opts == NULL) {
3697 exit(1);
3698 }
3699 break;
3700 case QEMU_OPTION_enable_kvm:
3701 olist = qemu_find_opts("machine");
3702 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3703 break;
3704 case QEMU_OPTION_enable_hax:
3705 olist = qemu_find_opts("machine");
3706 qemu_opts_parse_noisily(olist, "accel=hax", false);
3707 break;
3708 case QEMU_OPTION_M:
3709 case QEMU_OPTION_machine:
3710 olist = qemu_find_opts("machine");
3711 opts = qemu_opts_parse_noisily(olist, optarg, true);
3712 if (!opts) {
3713 exit(1);
3714 }
3715 break;
3716 case QEMU_OPTION_no_kvm:
3717 olist = qemu_find_opts("machine");
3718 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3719 break;
3720 case QEMU_OPTION_no_kvm_pit_reinjection: {
3721 static GlobalProperty kvm_pit_lost_tick_policy = {
3722 .driver = "kvm-pit",
3723 .property = "lost_tick_policy",
3724 .value = "discard",
3725 };
3726
3727 warn_report("deprecated, replaced by "
3728 "-global kvm-pit.lost_tick_policy=discard");
3729 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3730 break;
3731 }
3732 case QEMU_OPTION_accel:
3733 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3734 optarg, true);
3735 optarg = qemu_opt_get(accel_opts, "accel");
3736 if (!optarg || is_help_option(optarg)) {
3737 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3738 exit(0);
3739 }
3740 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3741 false, &error_abort);
3742 qemu_opt_set(opts, "accel", optarg, &error_abort);
3743 break;
3744 case QEMU_OPTION_usb:
3745 olist = qemu_find_opts("machine");
3746 qemu_opts_parse_noisily(olist, "usb=on", false);
3747 break;
3748 case QEMU_OPTION_usbdevice:
3749 error_report("'-usbdevice' is deprecated, please use "
3750 "'-device usb-...' instead");
3751 olist = qemu_find_opts("machine");
3752 qemu_opts_parse_noisily(olist, "usb=on", false);
3753 add_device_config(DEV_USB, optarg);
3754 break;
3755 case QEMU_OPTION_device:
3756 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3757 optarg, true)) {
3758 exit(1);
3759 }
3760 break;
3761 case QEMU_OPTION_smp:
3762 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3763 optarg, true)) {
3764 exit(1);
3765 }
3766 break;
3767 case QEMU_OPTION_vnc:
3768 vnc_parse(optarg, &error_fatal);
3769 break;
3770 case QEMU_OPTION_no_acpi:
3771 acpi_enabled = 0;
3772 break;
3773 case QEMU_OPTION_no_hpet:
3774 no_hpet = 1;
3775 break;
3776 case QEMU_OPTION_balloon:
3777 if (balloon_parse(optarg) < 0) {
3778 error_report("unknown -balloon argument %s", optarg);
3779 exit(1);
3780 }
3781 break;
3782 case QEMU_OPTION_no_reboot:
3783 no_reboot = 1;
3784 break;
3785 case QEMU_OPTION_no_shutdown:
3786 no_shutdown = 1;
3787 break;
3788 case QEMU_OPTION_show_cursor:
3789 cursor_hide = 0;
3790 break;
3791 case QEMU_OPTION_uuid:
3792 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3793 error_report("failed to parse UUID string: wrong format");
3794 exit(1);
3795 }
3796 qemu_uuid_set = true;
3797 break;
3798 case QEMU_OPTION_option_rom:
3799 if (nb_option_roms >= MAX_OPTION_ROMS) {
3800 error_report("too many option ROMs");
3801 exit(1);
3802 }
3803 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3804 optarg, true);
3805 if (!opts) {
3806 exit(1);
3807 }
3808 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3809 option_rom[nb_option_roms].bootindex =
3810 qemu_opt_get_number(opts, "bootindex", -1);
3811 if (!option_rom[nb_option_roms].name) {
3812 error_report("Option ROM file is not specified");
3813 exit(1);
3814 }
3815 nb_option_roms++;
3816 break;
3817 case QEMU_OPTION_semihosting:
3818 semihosting.enabled = true;
3819 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3820 break;
3821 case QEMU_OPTION_semihosting_config:
3822 semihosting.enabled = true;
3823 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3824 optarg, false);
3825 if (opts != NULL) {
3826 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3827 true);
3828 const char *target = qemu_opt_get(opts, "target");
3829 if (target != NULL) {
3830 if (strcmp("native", target) == 0) {
3831 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3832 } else if (strcmp("gdb", target) == 0) {
3833 semihosting.target = SEMIHOSTING_TARGET_GDB;
3834 } else if (strcmp("auto", target) == 0) {
3835 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3836 } else {
3837 error_report("unsupported semihosting-config %s",
3838 optarg);
3839 exit(1);
3840 }
3841 } else {
3842 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3843 }
3844 /* Set semihosting argument count and vector */
3845 qemu_opt_foreach(opts, add_semihosting_arg,
3846 &semihosting, NULL);
3847 } else {
3848 error_report("unsupported semihosting-config %s", optarg);
3849 exit(1);
3850 }
3851 break;
3852 case QEMU_OPTION_tdf:
3853 warn_report("ignoring deprecated option");
3854 break;
3855 case QEMU_OPTION_name:
3856 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3857 optarg, true);
3858 if (!opts) {
3859 exit(1);
3860 }
3861 break;
3862 case QEMU_OPTION_prom_env:
3863 if (nb_prom_envs >= MAX_PROM_ENVS) {
3864 error_report("too many prom variables");
3865 exit(1);
3866 }
3867 prom_envs[nb_prom_envs] = optarg;
3868 nb_prom_envs++;
3869 break;
3870 case QEMU_OPTION_old_param:
3871 old_param = 1;
3872 break;
3873 case QEMU_OPTION_clock:
3874 /* Clock options no longer exist. Keep this option for
3875 * backward compatibility.
3876 */
3877 break;
3878 case QEMU_OPTION_startdate:
3879 configure_rtc_date_offset(optarg, 1);
3880 break;
3881 case QEMU_OPTION_rtc:
3882 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3883 false);
3884 if (!opts) {
3885 exit(1);
3886 }
3887 configure_rtc(opts);
3888 break;
3889 case QEMU_OPTION_tb_size:
3890 #ifndef CONFIG_TCG
3891 error_report("TCG is disabled");
3892 exit(1);
3893 #endif
3894 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3895 error_report("Invalid argument to -tb-size");
3896 exit(1);
3897 }
3898 break;
3899 case QEMU_OPTION_icount:
3900 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3901 optarg, true);
3902 if (!icount_opts) {
3903 exit(1);
3904 }
3905 break;
3906 case QEMU_OPTION_incoming:
3907 if (!incoming) {
3908 runstate_set(RUN_STATE_INMIGRATE);
3909 }
3910 incoming = optarg;
3911 break;
3912 case QEMU_OPTION_only_migratable:
3913 /*
3914 * TODO: we can remove this option one day, and we
3915 * should all use:
3916 *
3917 * "-global migration.only-migratable=true"
3918 */
3919 qemu_global_option("migration.only-migratable=true");
3920 break;
3921 case QEMU_OPTION_nodefaults:
3922 has_defaults = 0;
3923 break;
3924 case QEMU_OPTION_xen_domid:
3925 if (!(xen_available())) {
3926 error_report("Option not supported for this target");
3927 exit(1);
3928 }
3929 xen_domid = atoi(optarg);
3930 break;
3931 case QEMU_OPTION_xen_create:
3932 if (!(xen_available())) {
3933 error_report("Option not supported for this target");
3934 exit(1);
3935 }
3936 xen_mode = XEN_CREATE;
3937 break;
3938 case QEMU_OPTION_xen_attach:
3939 if (!(xen_available())) {
3940 error_report("Option not supported for this target");
3941 exit(1);
3942 }
3943 xen_mode = XEN_ATTACH;
3944 break;
3945 case QEMU_OPTION_xen_domid_restrict:
3946 if (!(xen_available())) {
3947 error_report("Option not supported for this target");
3948 exit(1);
3949 }
3950 xen_domid_restrict = true;
3951 break;
3952 case QEMU_OPTION_trace:
3953 g_free(trace_file);
3954 trace_file = trace_opt_parse(optarg);
3955 break;
3956 case QEMU_OPTION_readconfig:
3957 {
3958 int ret = qemu_read_config_file(optarg);
3959 if (ret < 0) {
3960 error_report("read config %s: %s", optarg,
3961 strerror(-ret));
3962 exit(1);
3963 }
3964 break;
3965 }
3966 case QEMU_OPTION_spice:
3967 olist = qemu_find_opts("spice");
3968 if (!olist) {
3969 error_report("spice support is disabled");
3970 exit(1);
3971 }
3972 opts = qemu_opts_parse_noisily(olist, optarg, false);
3973 if (!opts) {
3974 exit(1);
3975 }
3976 display_remote++;
3977 break;
3978 case QEMU_OPTION_writeconfig:
3979 {
3980 FILE *fp;
3981 if (strcmp(optarg, "-") == 0) {
3982 fp = stdout;
3983 } else {
3984 fp = fopen(optarg, "w");
3985 if (fp == NULL) {
3986 error_report("open %s: %s", optarg,
3987 strerror(errno));
3988 exit(1);
3989 }
3990 }
3991 qemu_config_write(fp);
3992 if (fp != stdout) {
3993 fclose(fp);
3994 }
3995 break;
3996 }
3997 case QEMU_OPTION_qtest:
3998 qtest_chrdev = optarg;
3999 break;
4000 case QEMU_OPTION_qtest_log:
4001 qtest_log = optarg;
4002 break;
4003 case QEMU_OPTION_sandbox:
4004 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4005 optarg, true);
4006 if (!opts) {
4007 exit(1);
4008 }
4009 break;
4010 case QEMU_OPTION_add_fd:
4011 #ifndef _WIN32
4012 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4013 optarg, false);
4014 if (!opts) {
4015 exit(1);
4016 }
4017 #else
4018 error_report("File descriptor passing is disabled on this "
4019 "platform");
4020 exit(1);
4021 #endif
4022 break;
4023 case QEMU_OPTION_object:
4024 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4025 optarg, true);
4026 if (!opts) {
4027 exit(1);
4028 }
4029 break;
4030 case QEMU_OPTION_realtime:
4031 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4032 optarg, false);
4033 if (!opts) {
4034 exit(1);
4035 }
4036 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4037 break;
4038 case QEMU_OPTION_msg:
4039 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4040 false);
4041 if (!opts) {
4042 exit(1);
4043 }
4044 configure_msg(opts);
4045 break;
4046 case QEMU_OPTION_dump_vmstate:
4047 if (vmstate_dump_file) {
4048 error_report("only one '-dump-vmstate' "
4049 "option may be given");
4050 exit(1);
4051 }
4052 vmstate_dump_file = fopen(optarg, "w");
4053 if (vmstate_dump_file == NULL) {
4054 error_report("open %s: %s", optarg, strerror(errno));
4055 exit(1);
4056 }
4057 break;
4058 default:
4059 os_parse_cmd_args(popt->index, optarg);
4060 }
4061 }
4062 }
4063 /*
4064 * Clear error location left behind by the loop.
4065 * Best done right after the loop. Do not insert code here!
4066 */
4067 loc_set_none();
4068
4069 replay_configure(icount_opts);
4070
4071 machine_class = select_machine();
4072
4073 set_memory_options(&ram_slots, &maxram_size, machine_class);
4074
4075 os_daemonize();
4076 rcu_disable_atfork();
4077
4078 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4079 error_report("could not acquire pid file: %s", strerror(errno));
4080 exit(1);
4081 }
4082
4083 if (qemu_init_main_loop(&main_loop_err)) {
4084 error_report_err(main_loop_err);
4085 exit(1);
4086 }
4087
4088 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4089 parse_sandbox, NULL, NULL)) {
4090 exit(1);
4091 }
4092
4093 if (qemu_opts_foreach(qemu_find_opts("name"),
4094 parse_name, NULL, NULL)) {
4095 exit(1);
4096 }
4097
4098 #ifndef _WIN32
4099 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4100 parse_add_fd, NULL, NULL)) {
4101 exit(1);
4102 }
4103
4104 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4105 cleanup_add_fd, NULL, NULL)) {
4106 exit(1);
4107 }
4108 #endif
4109
4110 current_machine = MACHINE(object_new(object_class_get_name(
4111 OBJECT_CLASS(machine_class))));
4112 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4113 exit(0);
4114 }
4115 object_property_add_child(object_get_root(), "machine",
4116 OBJECT(current_machine), &error_abort);
4117
4118 if (machine_class->minimum_page_bits) {
4119 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4120 /* This would be a board error: specifying a minimum smaller than
4121 * a target's compile-time fixed setting.
4122 */
4123 g_assert_not_reached();
4124 }
4125 }
4126
4127 cpu_exec_init_all();
4128
4129 if (machine_class->hw_version) {
4130 qemu_set_hw_version(machine_class->hw_version);
4131 }
4132
4133 if (cpu_model && is_help_option(cpu_model)) {
4134 list_cpus(stdout, &fprintf, cpu_model);
4135 exit(0);
4136 }
4137
4138 if (!trace_init_backends()) {
4139 exit(1);
4140 }
4141 trace_init_file(trace_file);
4142
4143 /* Open the logfile at this point and set the log mask if necessary.
4144 */
4145 if (log_file) {
4146 qemu_set_log_filename(log_file, &error_fatal);
4147 }
4148
4149 if (log_mask) {
4150 int mask;
4151 mask = qemu_str_to_log_mask(log_mask);
4152 if (!mask) {
4153 qemu_print_log_usage(stdout);
4154 exit(1);
4155 }
4156 qemu_set_log(mask);
4157 } else {
4158 qemu_set_log(0);
4159 }
4160
4161 /* add configured firmware directories */
4162 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4163 for (i = 0; dirs[i] != NULL; i++) {
4164 qemu_add_data_dir(dirs[i]);
4165 }
4166 g_strfreev(dirs);
4167
4168 /* try to find datadir relative to the executable path */
4169 dir = os_find_datadir();
4170 qemu_add_data_dir(dir);
4171 g_free(dir);
4172
4173 /* add the datadir specified when building */
4174 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4175
4176 /* -L help lists the data directories and exits. */
4177 if (list_data_dirs) {
4178 for (i = 0; i < data_dir_idx; i++) {
4179 printf("%s\n", data_dir[i]);
4180 }
4181 exit(0);
4182 }
4183
4184 /* machine_class: default to UP */
4185 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4186 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4187 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4188
4189 /* default to machine_class->default_cpus */
4190 smp_cpus = machine_class->default_cpus;
4191 max_cpus = machine_class->default_cpus;
4192
4193 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4194
4195 /* sanity-check smp_cpus and max_cpus against machine_class */
4196 if (smp_cpus < machine_class->min_cpus) {
4197 error_report("Invalid SMP CPUs %d. The min CPUs "
4198 "supported by machine '%s' is %d", smp_cpus,
4199 machine_class->name, machine_class->min_cpus);
4200 exit(1);
4201 }
4202 if (max_cpus > machine_class->max_cpus) {
4203 error_report("Invalid SMP CPUs %d. The max CPUs "
4204 "supported by machine '%s' is %d", max_cpus,
4205 machine_class->name, machine_class->max_cpus);
4206 exit(1);
4207 }
4208
4209 /*
4210 * Get the default machine options from the machine if it is not already
4211 * specified either by the configuration file or by the command line.
4212 */
4213 if (machine_class->default_machine_opts) {
4214 qemu_opts_set_defaults(qemu_find_opts("machine"),
4215 machine_class->default_machine_opts, 0);
4216 }
4217
4218 qemu_opts_foreach(qemu_find_opts("device"),
4219 default_driver_check, NULL, NULL);
4220 qemu_opts_foreach(qemu_find_opts("global"),
4221 default_driver_check, NULL, NULL);
4222
4223 if (!vga_model && !default_vga) {
4224 vga_interface_type = VGA_DEVICE;
4225 }
4226 if (!has_defaults || machine_class->no_serial) {
4227 default_serial = 0;
4228 }
4229 if (!has_defaults || machine_class->no_parallel) {
4230 default_parallel = 0;
4231 }
4232 if (!has_defaults || !machine_class->use_virtcon) {
4233 default_virtcon = 0;
4234 }
4235 if (!has_defaults || !machine_class->use_sclp) {
4236 default_sclp = 0;
4237 }
4238 if (!has_defaults || machine_class->no_floppy) {
4239 default_floppy = 0;
4240 }
4241 if (!has_defaults || machine_class->no_cdrom) {
4242 default_cdrom = 0;
4243 }
4244 if (!has_defaults || machine_class->no_sdcard) {
4245 default_sdcard = 0;
4246 }
4247 if (!has_defaults) {
4248 default_monitor = 0;
4249 default_net = 0;
4250 default_vga = 0;
4251 }
4252
4253 if (is_daemonized()) {
4254 /* According to documentation and historically, -nographic redirects
4255 * serial port, parallel port and monitor to stdio, which does not work
4256 * with -daemonize. We can redirect these to null instead, but since
4257 * -nographic is legacy, let's just error out.
4258 * We disallow -nographic only if all other ports are not redirected
4259 * explicitly, to not break existing legacy setups which uses
4260 * -nographic _and_ redirects all ports explicitly - this is valid
4261 * usage, -nographic is just a no-op in this case.
4262 */
4263 if (nographic
4264 && (default_parallel || default_serial
4265 || default_monitor || default_virtcon)) {
4266 error_report("-nographic cannot be used with -daemonize");
4267 exit(1);
4268 }
4269 #ifdef CONFIG_CURSES
4270 if (display_type == DT_CURSES) {
4271 error_report("curses display cannot be used with -daemonize");
4272 exit(1);
4273 }
4274 #endif
4275 }
4276
4277 if (nographic) {
4278 if (default_parallel)
4279 add_device_config(DEV_PARALLEL, "null");
4280 if (default_serial && default_monitor) {
4281 add_device_config(DEV_SERIAL, "mon:stdio");
4282 } else if (default_virtcon && default_monitor) {
4283 add_device_config(DEV_VIRTCON, "mon:stdio");
4284 } else if (default_sclp && default_monitor) {
4285 add_device_config(DEV_SCLP, "mon:stdio");
4286 } else {
4287 if (default_serial)
4288 add_device_config(DEV_SERIAL, "stdio");
4289 if (default_virtcon)
4290 add_device_config(DEV_VIRTCON, "stdio");
4291 if (default_sclp) {
4292 add_device_config(DEV_SCLP, "stdio");
4293 }
4294 if (default_monitor)
4295 monitor_parse("stdio", "readline", false);
4296 }
4297 } else {
4298 if (default_serial)
4299 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4300 if (default_parallel)
4301 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4302 if (default_monitor)
4303 monitor_parse("vc:80Cx24C", "readline", false);
4304 if (default_virtcon)
4305 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4306 if (default_sclp) {
4307 add_device_config(DEV_SCLP, "vc:80Cx24C");
4308 }
4309 }
4310
4311 #if defined(CONFIG_VNC)
4312 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4313 display_remote++;
4314 }
4315 #endif
4316 if (display_type == DT_DEFAULT && !display_remote) {
4317 #if defined(CONFIG_GTK)
4318 display_type = DT_GTK;
4319 #elif defined(CONFIG_SDL)
4320 display_type = DT_SDL;
4321 #elif defined(CONFIG_COCOA)
4322 display_type = DT_COCOA;
4323 #elif defined(CONFIG_VNC)
4324 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4325 #else
4326 display_type = DT_NONE;
4327 #endif
4328 }
4329
4330 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4331 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4332 "for SDL, ignoring option");
4333 }
4334 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4335 error_report("-no-quit is only valid for GTK and SDL, "
4336 "ignoring option");
4337 }
4338
4339 if (display_type == DT_GTK) {
4340 early_gtk_display_init(request_opengl);
4341 }
4342
4343 if (display_type == DT_SDL) {
4344 sdl_display_early_init(request_opengl);
4345 }
4346
4347 qemu_console_early_init();
4348
4349 if (request_opengl == 1 && display_opengl == 0) {
4350 #if defined(CONFIG_OPENGL)
4351 error_report("OpenGL is not supported by the display");
4352 #else
4353 error_report("OpenGL support is disabled");
4354 #endif
4355 exit(1);
4356 }
4357
4358 page_size_init();
4359 socket_init();
4360
4361 if (qemu_opts_foreach(qemu_find_opts("object"),
4362 user_creatable_add_opts_foreach,
4363 object_create_initial, NULL)) {
4364 exit(1);
4365 }
4366
4367 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4368 chardev_init_func, NULL, NULL)) {
4369 exit(1);
4370 }
4371
4372 #ifdef CONFIG_VIRTFS
4373 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4374 fsdev_init_func, NULL, NULL)) {
4375 exit(1);
4376 }
4377 #endif
4378
4379 if (qemu_opts_foreach(qemu_find_opts("device"),
4380 device_help_func, NULL, NULL)) {
4381 exit(0);
4382 }
4383
4384 machine_opts = qemu_get_machine_opts();
4385 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4386 NULL)) {
4387 object_unref(OBJECT(current_machine));
4388 exit(1);
4389 }
4390
4391 configure_accelerator(current_machine);
4392
4393 /*
4394 * Register all the global properties, including accel properties,
4395 * machine properties, and user-specified ones.
4396 */
4397 register_global_properties(current_machine);
4398
4399 /*
4400 * Migration object can only be created after global properties
4401 * are applied correctly.
4402 */
4403 migration_object_init();
4404
4405 if (qtest_chrdev) {
4406 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4407 }
4408
4409 machine_opts = qemu_get_machine_opts();
4410 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4411 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4412 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4413 bios_name = qemu_opt_get(machine_opts, "firmware");
4414
4415 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4416 if (opts) {
4417 boot_order = qemu_opt_get(opts, "order");
4418 if (boot_order) {
4419 validate_bootdevices(boot_order, &error_fatal);
4420 }
4421
4422 boot_once = qemu_opt_get(opts, "once");
4423 if (boot_once) {
4424 validate_bootdevices(boot_once, &error_fatal);
4425 }
4426
4427 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4428 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4429 }
4430
4431 if (!boot_order) {
4432 boot_order = machine_class->default_boot_order;
4433 }
4434
4435 if (!kernel_cmdline) {
4436 kernel_cmdline = "";
4437 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4438 }
4439
4440 linux_boot = (kernel_filename != NULL);
4441
4442 if (!linux_boot && *kernel_cmdline != '\0') {
4443 error_report("-append only allowed with -kernel option");
4444 exit(1);
4445 }
4446
4447 if (!linux_boot && initrd_filename != NULL) {
4448 error_report("-initrd only allowed with -kernel option");
4449 exit(1);
4450 }
4451
4452 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4453 /* fall back to the -kernel/-append */
4454 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4455 }
4456
4457 os_set_line_buffering();
4458
4459 /* spice needs the timers to be initialized by this point */
4460 qemu_spice_init();
4461
4462 cpu_ticks_init();
4463 if (icount_opts) {
4464 if (!tcg_enabled()) {
4465 error_report("-icount is not allowed with hardware virtualization");
4466 exit(1);
4467 }
4468 configure_icount(icount_opts, &error_abort);
4469 qemu_opts_del(icount_opts);
4470 }
4471
4472 if (tcg_enabled()) {
4473 qemu_tcg_configure(accel_opts, &error_fatal);
4474 }
4475
4476 if (default_net) {
4477 QemuOptsList *net = qemu_find_opts("net");
4478 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4479 #ifdef CONFIG_SLIRP
4480 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4481 #endif
4482 }
4483
4484 colo_info_init();
4485
4486 if (net_init_clients() < 0) {
4487 exit(1);
4488 }
4489
4490 if (qemu_opts_foreach(qemu_find_opts("object"),
4491 user_creatable_add_opts_foreach,
4492 object_create_delayed, NULL)) {
4493 exit(1);
4494 }
4495
4496 if (tpm_init() < 0) {
4497 exit(1);
4498 }
4499
4500 /* init the bluetooth world */
4501 if (foreach_device_config(DEV_BT, bt_parse))
4502 exit(1);
4503
4504 if (!xen_enabled()) {
4505 /* On 32-bit hosts, QEMU is limited by virtual address space */
4506 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4507 error_report("at most 2047 MB RAM can be simulated");
4508 exit(1);
4509 }
4510 }
4511
4512 blk_mig_init();
4513 ram_mig_init();
4514
4515 /* If the currently selected machine wishes to override the units-per-bus
4516 * property of its default HBA interface type, do so now. */
4517 if (machine_class->units_per_default_bus) {
4518 override_max_devs(machine_class->block_default_type,
4519 machine_class->units_per_default_bus);
4520 }
4521
4522 /* open the virtual block devices */
4523 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4524 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4525
4526 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4527 loc_push_restore(&bdo->loc);
4528 qmp_blockdev_add(bdo->bdo, &error_fatal);
4529 loc_pop(&bdo->loc);
4530 qapi_free_BlockdevOptions(bdo->bdo);
4531 g_free(bdo);
4532 }
4533 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4534 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4535 NULL, NULL);
4536 }
4537 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4538 &machine_class->block_default_type, NULL)) {
4539 exit(1);
4540 }
4541
4542 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4543 CDROM_OPTS);
4544 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4545 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4546
4547 if (qemu_opts_foreach(qemu_find_opts("mon"),
4548 mon_init_func, NULL, NULL)) {
4549 exit(1);
4550 }
4551
4552 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4553 exit(1);
4554 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4555 exit(1);
4556 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4557 exit(1);
4558 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4559 exit(1);
4560 }
4561 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4562 exit(1);
4563
4564 /* If no default VGA is requested, the default is "none". */
4565 if (default_vga) {
4566 if (machine_class->default_display) {
4567 vga_model = machine_class->default_display;
4568 } else if (vga_interface_available(VGA_CIRRUS)) {
4569 vga_model = "cirrus";
4570 } else if (vga_interface_available(VGA_STD)) {
4571 vga_model = "std";
4572 }
4573 }
4574 if (vga_model) {
4575 select_vgahw(vga_model);
4576 }
4577
4578 if (watchdog) {
4579 i = select_watchdog(watchdog);
4580 if (i > 0)
4581 exit (i == 1 ? 1 : 0);
4582 }
4583
4584 /* This checkpoint is required by replay to separate prior clock
4585 reading from the other reads, because timer polling functions query
4586 clock values from the log. */
4587 replay_checkpoint(CHECKPOINT_INIT);
4588 qdev_machine_init();
4589
4590 current_machine->ram_size = ram_size;
4591 current_machine->maxram_size = maxram_size;
4592 current_machine->ram_slots = ram_slots;
4593 current_machine->boot_order = boot_order;
4594 current_machine->cpu_model = cpu_model;
4595
4596 /* parse features once if machine provides default cpu_type */
4597 if (machine_class->default_cpu_type) {
4598 current_machine->cpu_type = machine_class->default_cpu_type;
4599 if (cpu_model) {
4600 current_machine->cpu_type =
4601 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4602 }
4603 }
4604 parse_numa_opts(current_machine);
4605
4606 machine_run_board_init(current_machine);
4607
4608 realtime_init();
4609
4610 soundhw_init();
4611
4612 if (hax_enabled()) {
4613 hax_sync_vcpus();
4614 }
4615
4616 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4617 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4618 exit(1);
4619 }
4620
4621 /* init USB devices */
4622 if (machine_usb(current_machine)) {
4623 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4624 exit(1);
4625 }
4626
4627 /* Check if IGD GFX passthrough. */
4628 igd_gfx_passthru();
4629
4630 /* init generic devices */
4631 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4632 if (qemu_opts_foreach(qemu_find_opts("device"),
4633 device_init_func, NULL, NULL)) {
4634 exit(1);
4635 }
4636
4637 cpu_synchronize_all_post_init();
4638
4639 rom_reset_order_override();
4640
4641 /*
4642 * Create frontends for -drive if=scsi leftovers.
4643 * Normally, frontends for -drive get created by machine
4644 * initialization for onboard SCSI HBAs. However, we create a few
4645 * more ever since SCSI qdevification, but this is pretty much an
4646 * implementation accident, and deprecated.
4647 */
4648 scsi_legacy_handle_cmdline();
4649
4650 /* Did we create any drives that we failed to create a device for? */
4651 drive_check_orphaned();
4652
4653 /* Don't warn about the default network setup that you get if
4654 * no command line -net or -netdev options are specified. There
4655 * are two cases that we would otherwise complain about:
4656 * (1) board doesn't support a NIC but the implicit "-net nic"
4657 * requested one
4658 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4659 * sets up a nic that isn't connected to anything.
4660 */
4661 if (!default_net) {
4662 net_check_clients();
4663 }
4664
4665
4666 if (boot_once) {
4667 qemu_boot_set(boot_once, &error_fatal);
4668 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4669 }
4670
4671 ds = init_displaystate();
4672
4673 /* init local displays */
4674 switch (display_type) {
4675 case DT_CURSES:
4676 curses_display_init(ds, full_screen);
4677 break;
4678 case DT_SDL:
4679 sdl_display_init(ds, full_screen);
4680 break;
4681 case DT_COCOA:
4682 cocoa_display_init(ds, full_screen);
4683 break;
4684 case DT_GTK:
4685 gtk_display_init(ds, full_screen, grab_on_hover);
4686 break;
4687 default:
4688 break;
4689 }
4690
4691 /* must be after terminal init, SDL library changes signal handlers */
4692 os_setup_signal_handling();
4693
4694 /* init remote displays */
4695 #ifdef CONFIG_VNC
4696 qemu_opts_foreach(qemu_find_opts("vnc"),
4697 vnc_init_func, NULL, NULL);
4698 #endif
4699
4700 if (using_spice) {
4701 qemu_spice_display_init();
4702 }
4703
4704 #ifdef CONFIG_OPENGL_DMABUF
4705 if (display_type == DT_EGL) {
4706 egl_headless_init();
4707 }
4708 #endif
4709
4710 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4711 exit(1);
4712 }
4713
4714 qdev_machine_creation_done();
4715
4716 /* TODO: once all bus devices are qdevified, this should be done
4717 * when bus is created by qdev.c */
4718 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4719 qemu_run_machine_init_done_notifiers();
4720
4721 if (rom_check_and_register_reset() != 0) {
4722 error_report("rom check and register reset failed");
4723 exit(1);
4724 }
4725
4726 replay_start();
4727
4728 /* This checkpoint is required by replay to separate prior clock
4729 reading from the other reads, because timer polling functions query
4730 clock values from the log. */
4731 replay_checkpoint(CHECKPOINT_RESET);
4732 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4733 register_global_state();
4734 if (replay_mode != REPLAY_MODE_NONE) {
4735 replay_vmstate_init();
4736 } else if (loadvm) {
4737 Error *local_err = NULL;
4738 if (load_snapshot(loadvm, &local_err) < 0) {
4739 error_report_err(local_err);
4740 autostart = 0;
4741 }
4742 }
4743
4744 qdev_prop_check_globals();
4745 if (vmstate_dump_file) {
4746 /* dump and exit */
4747 dump_vmstate_json_to_file(vmstate_dump_file);
4748 return 0;
4749 }
4750
4751 if (incoming) {
4752 Error *local_err = NULL;
4753 qemu_start_incoming_migration(incoming, &local_err);
4754 if (local_err) {
4755 error_reportf_err(local_err, "-incoming %s: ", incoming);
4756 exit(1);
4757 }
4758 } else if (autostart) {
4759 vm_start();
4760 }
4761
4762 os_setup_post();
4763
4764 main_loop();
4765 replay_disable_events();
4766
4767 /* The ordering of the following is delicate. Stop vcpus to prevent new
4768 * I/O requests being queued by the guest. Then stop IOThreads (this
4769 * includes a drain operation and completes all request processing). At
4770 * this point emulated devices are still associated with their IOThreads
4771 * (if any) but no longer have any work to do. Only then can we close
4772 * block devices safely because we know there is no more I/O coming.
4773 */
4774 pause_all_vcpus();
4775 iothread_stop_all();
4776 bdrv_close_all();
4777
4778 res_free();
4779
4780 /* vhost-user must be cleaned up before chardevs. */
4781 tpm_cleanup();
4782 net_cleanup();
4783 audio_cleanup();
4784 monitor_cleanup();
4785 qemu_chr_cleanup();
4786 user_creatable_cleanup();
4787 migration_object_finalize();
4788 /* TODO: unref root container, check all devices are ok */
4789
4790 return 0;
4791 }
QEmu