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