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qapi: Pass '-u' when doing non-silent diff
[qemu.git] / vl.c
blob518ba43ab66728cf32d78de2e39e98d75c80de03
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 "qemu/option.h"
101 #include "qemu/config-file.h"
102 #include "qemu-options.h"
103 #include "qemu/main-loop.h"
104 #ifdef CONFIG_VIRTFS
105 #include "fsdev/qemu-fsdev.h"
106 #endif
107 #include "sysemu/qtest.h"
108
109 #include "disas/disas.h"
110
111
112 #include "slirp/libslirp.h"
113
114 #include "trace-root.h"
115 #include "trace/control.h"
116 #include "qemu/queue.h"
117 #include "sysemu/arch_init.h"
118
119 #include "ui/qemu-spice.h"
120 #include "qapi/string-input-visitor.h"
121 #include "qapi/opts-visitor.h"
122 #include "qom/object_interfaces.h"
123 #include "exec/semihost.h"
124 #include "crypto/init.h"
125 #include "sysemu/replay.h"
126 #include "qapi/qapi-events-run-state.h"
127 #include "qapi/qapi-visit-block-core.h"
128 #include "qapi/qapi-commands-block-core.h"
129 #include "qapi/qapi-commands-misc.h"
130 #include "qapi/qapi-commands-run-state.h"
131 #include "qapi/qmp/qerror.h"
132 #include "sysemu/iothread.h"
133
134 #define MAX_VIRTIO_CONSOLES 1
135 #define MAX_SCLP_CONSOLES 1
136
137 static const char *data_dir[16];
138 static int data_dir_idx;
139 const char *bios_name = NULL;
140 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
141 int display_opengl;
142 const char* keyboard_layout = NULL;
143 ram_addr_t ram_size;
144 const char *mem_path = NULL;
145 int mem_prealloc = 0; /* force preallocation of physical target memory */
146 bool enable_mlock = false;
147 int nb_nics;
148 NICInfo nd_table[MAX_NICS];
149 int autostart;
150 static int rtc_utc = 1;
151 static int rtc_date_offset = -1; /* -1 means no change */
152 QEMUClockType rtc_clock;
153 int vga_interface_type = VGA_NONE;
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");
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, "\nHV 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 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1765 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1766 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1767 info->u.s390.core,
1768 S390CrashReason_str(info->u.s390.reason),
1769 info->u.s390.psw_mask,
1770 info->u.s390.psw_addr);
1771 }
1772 qapi_free_GuestPanicInformation(info);
1773 }
1774 }
1775
1776 void qemu_system_reset_request(ShutdownCause reason)
1777 {
1778 if (no_reboot) {
1779 shutdown_requested = reason;
1780 } else {
1781 reset_requested = reason;
1782 }
1783 cpu_stop_current();
1784 qemu_notify_event();
1785 }
1786
1787 static void qemu_system_suspend(void)
1788 {
1789 pause_all_vcpus();
1790 notifier_list_notify(&suspend_notifiers, NULL);
1791 runstate_set(RUN_STATE_SUSPENDED);
1792 qapi_event_send_suspend(&error_abort);
1793 }
1794
1795 void qemu_system_suspend_request(void)
1796 {
1797 if (runstate_check(RUN_STATE_SUSPENDED)) {
1798 return;
1799 }
1800 suspend_requested = 1;
1801 cpu_stop_current();
1802 qemu_notify_event();
1803 }
1804
1805 void qemu_register_suspend_notifier(Notifier *notifier)
1806 {
1807 notifier_list_add(&suspend_notifiers, notifier);
1808 }
1809
1810 void qemu_system_wakeup_request(WakeupReason reason)
1811 {
1812 trace_system_wakeup_request(reason);
1813
1814 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1815 return;
1816 }
1817 if (!(wakeup_reason_mask & (1 << reason))) {
1818 return;
1819 }
1820 runstate_set(RUN_STATE_RUNNING);
1821 wakeup_reason = reason;
1822 qemu_notify_event();
1823 }
1824
1825 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1826 {
1827 if (enabled) {
1828 wakeup_reason_mask |= (1 << reason);
1829 } else {
1830 wakeup_reason_mask &= ~(1 << reason);
1831 }
1832 }
1833
1834 void qemu_register_wakeup_notifier(Notifier *notifier)
1835 {
1836 notifier_list_add(&wakeup_notifiers, notifier);
1837 }
1838
1839 void qemu_system_killed(int signal, pid_t pid)
1840 {
1841 shutdown_signal = signal;
1842 shutdown_pid = pid;
1843 no_shutdown = 0;
1844
1845 /* Cannot call qemu_system_shutdown_request directly because
1846 * we are in a signal handler.
1847 */
1848 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1849 qemu_notify_event();
1850 }
1851
1852 void qemu_system_shutdown_request(ShutdownCause reason)
1853 {
1854 trace_qemu_system_shutdown_request(reason);
1855 replay_shutdown_request(reason);
1856 shutdown_requested = reason;
1857 qemu_notify_event();
1858 }
1859
1860 static void qemu_system_powerdown(void)
1861 {
1862 qapi_event_send_powerdown(&error_abort);
1863 notifier_list_notify(&powerdown_notifiers, NULL);
1864 }
1865
1866 void qemu_system_powerdown_request(void)
1867 {
1868 trace_qemu_system_powerdown_request();
1869 powerdown_requested = 1;
1870 qemu_notify_event();
1871 }
1872
1873 void qemu_register_powerdown_notifier(Notifier *notifier)
1874 {
1875 notifier_list_add(&powerdown_notifiers, notifier);
1876 }
1877
1878 void qemu_system_debug_request(void)
1879 {
1880 debug_requested = 1;
1881 qemu_notify_event();
1882 }
1883
1884 static bool main_loop_should_exit(void)
1885 {
1886 RunState r;
1887 ShutdownCause request;
1888
1889 if (qemu_debug_requested()) {
1890 vm_stop(RUN_STATE_DEBUG);
1891 }
1892 if (qemu_suspend_requested()) {
1893 qemu_system_suspend();
1894 }
1895 request = qemu_shutdown_requested();
1896 if (request) {
1897 qemu_kill_report();
1898 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1899 &error_abort);
1900 if (no_shutdown) {
1901 vm_stop(RUN_STATE_SHUTDOWN);
1902 } else {
1903 return true;
1904 }
1905 }
1906 request = qemu_reset_requested();
1907 if (request) {
1908 pause_all_vcpus();
1909 qemu_system_reset(request);
1910 resume_all_vcpus();
1911 if (!runstate_check(RUN_STATE_RUNNING) &&
1912 !runstate_check(RUN_STATE_INMIGRATE)) {
1913 runstate_set(RUN_STATE_PRELAUNCH);
1914 }
1915 }
1916 if (qemu_wakeup_requested()) {
1917 pause_all_vcpus();
1918 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1919 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1920 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1921 resume_all_vcpus();
1922 qapi_event_send_wakeup(&error_abort);
1923 }
1924 if (qemu_powerdown_requested()) {
1925 qemu_system_powerdown();
1926 }
1927 if (qemu_vmstop_requested(&r)) {
1928 vm_stop(r);
1929 }
1930 return false;
1931 }
1932
1933 static void main_loop(void)
1934 {
1935 #ifdef CONFIG_PROFILER
1936 int64_t ti;
1937 #endif
1938 do {
1939 #ifdef CONFIG_PROFILER
1940 ti = profile_getclock();
1941 #endif
1942 main_loop_wait(false);
1943 #ifdef CONFIG_PROFILER
1944 dev_time += profile_getclock() - ti;
1945 #endif
1946 } while (!main_loop_should_exit());
1947 }
1948
1949 static void version(void)
1950 {
1951 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1952 QEMU_COPYRIGHT "\n");
1953 }
1954
1955 static void help(int exitcode)
1956 {
1957 version();
1958 printf("usage: %s [options] [disk_image]\n\n"
1959 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1960 error_get_progname());
1961
1962 #define QEMU_OPTIONS_GENERATE_HELP
1963 #include "qemu-options-wrapper.h"
1964
1965 printf("\nDuring emulation, the following keys are useful:\n"
1966 "ctrl-alt-f toggle full screen\n"
1967 "ctrl-alt-n switch to virtual console 'n'\n"
1968 "ctrl-alt toggle mouse and keyboard grab\n"
1969 "\n"
1970 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1971 "\n"
1972 QEMU_HELP_BOTTOM "\n");
1973
1974 exit(exitcode);
1975 }
1976
1977 #define HAS_ARG 0x0001
1978
1979 typedef struct QEMUOption {
1980 const char *name;
1981 int flags;
1982 int index;
1983 uint32_t arch_mask;
1984 } QEMUOption;
1985
1986 static const QEMUOption qemu_options[] = {
1987 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1988 #define QEMU_OPTIONS_GENERATE_OPTIONS
1989 #include "qemu-options-wrapper.h"
1990 { NULL },
1991 };
1992
1993 typedef struct VGAInterfaceInfo {
1994 const char *opt_name; /* option name */
1995 const char *name; /* human-readable name */
1996 /* Class names indicating that support is available.
1997 * If no class is specified, the interface is always available */
1998 const char *class_names[2];
1999 } VGAInterfaceInfo;
2000
2001 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2002 [VGA_NONE] = {
2003 .opt_name = "none",
2004 },
2005 [VGA_STD] = {
2006 .opt_name = "std",
2007 .name = "standard VGA",
2008 .class_names = { "VGA", "isa-vga" },
2009 },
2010 [VGA_CIRRUS] = {
2011 .opt_name = "cirrus",
2012 .name = "Cirrus VGA",
2013 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2014 },
2015 [VGA_VMWARE] = {
2016 .opt_name = "vmware",
2017 .name = "VMWare SVGA",
2018 .class_names = { "vmware-svga" },
2019 },
2020 [VGA_VIRTIO] = {
2021 .opt_name = "virtio",
2022 .name = "Virtio VGA",
2023 .class_names = { "virtio-vga" },
2024 },
2025 [VGA_QXL] = {
2026 .opt_name = "qxl",
2027 .name = "QXL VGA",
2028 .class_names = { "qxl-vga" },
2029 },
2030 [VGA_TCX] = {
2031 .opt_name = "tcx",
2032 .name = "TCX framebuffer",
2033 .class_names = { "SUNW,tcx" },
2034 },
2035 [VGA_CG3] = {
2036 .opt_name = "cg3",
2037 .name = "CG3 framebuffer",
2038 .class_names = { "cgthree" },
2039 },
2040 [VGA_XENFB] = {
2041 .opt_name = "xenfb",
2042 },
2043 };
2044
2045 static bool vga_interface_available(VGAInterfaceType t)
2046 {
2047 VGAInterfaceInfo *ti = &vga_interfaces[t];
2048
2049 assert(t < VGA_TYPE_MAX);
2050 return !ti->class_names[0] ||
2051 object_class_by_name(ti->class_names[0]) ||
2052 object_class_by_name(ti->class_names[1]);
2053 }
2054
2055 static void select_vgahw(const char *p)
2056 {
2057 const char *opts;
2058 int t;
2059
2060 assert(vga_interface_type == VGA_NONE);
2061 for (t = 0; t < VGA_TYPE_MAX; t++) {
2062 VGAInterfaceInfo *ti = &vga_interfaces[t];
2063 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2064 if (!vga_interface_available(t)) {
2065 error_report("%s not available", ti->name);
2066 exit(1);
2067 }
2068 vga_interface_type = t;
2069 break;
2070 }
2071 }
2072 if (t == VGA_TYPE_MAX) {
2073 invalid_vga:
2074 error_report("unknown vga type: %s", p);
2075 exit(1);
2076 }
2077 while (*opts) {
2078 const char *nextopt;
2079
2080 if (strstart(opts, ",retrace=", &nextopt)) {
2081 opts = nextopt;
2082 if (strstart(opts, "dumb", &nextopt))
2083 vga_retrace_method = VGA_RETRACE_DUMB;
2084 else if (strstart(opts, "precise", &nextopt))
2085 vga_retrace_method = VGA_RETRACE_PRECISE;
2086 else goto invalid_vga;
2087 } else goto invalid_vga;
2088 opts = nextopt;
2089 }
2090 }
2091
2092 static void parse_display(const char *p)
2093 {
2094 const char *opts;
2095
2096 if (strstart(p, "sdl", &opts)) {
2097 dpy.type = DISPLAY_TYPE_SDL;
2098 while (*opts) {
2099 const char *nextopt;
2100
2101 if (strstart(opts, ",frame=", &nextopt)) {
2102 g_printerr("The frame= sdl option is deprecated, and will be\n"
2103 "removed in a future release.\n");
2104 opts = nextopt;
2105 if (strstart(opts, "on", &nextopt)) {
2106 no_frame = 0;
2107 } else if (strstart(opts, "off", &nextopt)) {
2108 no_frame = 1;
2109 } else {
2110 goto invalid_sdl_args;
2111 }
2112 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2113 opts = nextopt;
2114 if (strstart(opts, "on", &nextopt)) {
2115 alt_grab = 1;
2116 } else if (strstart(opts, "off", &nextopt)) {
2117 alt_grab = 0;
2118 } else {
2119 goto invalid_sdl_args;
2120 }
2121 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2122 opts = nextopt;
2123 if (strstart(opts, "on", &nextopt)) {
2124 ctrl_grab = 1;
2125 } else if (strstart(opts, "off", &nextopt)) {
2126 ctrl_grab = 0;
2127 } else {
2128 goto invalid_sdl_args;
2129 }
2130 } else if (strstart(opts, ",window_close=", &nextopt)) {
2131 opts = nextopt;
2132 dpy.has_window_close = true;
2133 if (strstart(opts, "on", &nextopt)) {
2134 dpy.window_close = true;
2135 } else if (strstart(opts, "off", &nextopt)) {
2136 dpy.window_close = false;
2137 } else {
2138 goto invalid_sdl_args;
2139 }
2140 } else if (strstart(opts, ",gl=", &nextopt)) {
2141 opts = nextopt;
2142 dpy.has_gl = true;
2143 if (strstart(opts, "on", &nextopt)) {
2144 dpy.gl = true;
2145 } else if (strstart(opts, "off", &nextopt)) {
2146 dpy.gl = false;
2147 } else {
2148 goto invalid_sdl_args;
2149 }
2150 } else {
2151 invalid_sdl_args:
2152 error_report("invalid SDL option string");
2153 exit(1);
2154 }
2155 opts = nextopt;
2156 }
2157 } else if (strstart(p, "vnc", &opts)) {
2158 if (*opts == '=') {
2159 vnc_parse(opts + 1, &error_fatal);
2160 } else {
2161 error_report("VNC requires a display argument vnc=<display>");
2162 exit(1);
2163 }
2164 } else if (strstart(p, "egl-headless", &opts)) {
2165 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2166 } else if (strstart(p, "curses", &opts)) {
2167 dpy.type = DISPLAY_TYPE_CURSES;
2168 } else if (strstart(p, "gtk", &opts)) {
2169 dpy.type = DISPLAY_TYPE_GTK;
2170 while (*opts) {
2171 const char *nextopt;
2172
2173 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2174 opts = nextopt;
2175 dpy.u.gtk.has_grab_on_hover = true;
2176 if (strstart(opts, "on", &nextopt)) {
2177 dpy.u.gtk.grab_on_hover = true;
2178 } else if (strstart(opts, "off", &nextopt)) {
2179 dpy.u.gtk.grab_on_hover = false;
2180 } else {
2181 goto invalid_gtk_args;
2182 }
2183 } else if (strstart(opts, ",gl=", &nextopt)) {
2184 opts = nextopt;
2185 dpy.has_gl = true;
2186 if (strstart(opts, "on", &nextopt)) {
2187 dpy.gl = true;
2188 } else if (strstart(opts, "off", &nextopt)) {
2189 dpy.gl = false;
2190 } else {
2191 goto invalid_gtk_args;
2192 }
2193 } else {
2194 invalid_gtk_args:
2195 error_report("invalid GTK option string");
2196 exit(1);
2197 }
2198 opts = nextopt;
2199 }
2200 } else if (strstart(p, "none", &opts)) {
2201 dpy.type = DISPLAY_TYPE_NONE;
2202 } else {
2203 error_report("unknown display type");
2204 exit(1);
2205 }
2206 }
2207
2208 static int balloon_parse(const char *arg)
2209 {
2210 QemuOpts *opts;
2211
2212 warn_report("This option is deprecated. "
2213 "Use '--device virtio-balloon' to enable the balloon device.");
2214
2215 if (strcmp(arg, "none") == 0) {
2216 return 0;
2217 }
2218
2219 if (!strncmp(arg, "virtio", 6)) {
2220 if (arg[6] == ',') {
2221 /* have params -> parse them */
2222 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2223 false);
2224 if (!opts)
2225 return -1;
2226 } else {
2227 /* create empty opts */
2228 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2229 &error_abort);
2230 }
2231 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2232 return 0;
2233 }
2234
2235 return -1;
2236 }
2237
2238 char *qemu_find_file(int type, const char *name)
2239 {
2240 int i;
2241 const char *subdir;
2242 char *buf;
2243
2244 /* Try the name as a straight path first */
2245 if (access(name, R_OK) == 0) {
2246 trace_load_file(name, name);
2247 return g_strdup(name);
2248 }
2249
2250 switch (type) {
2251 case QEMU_FILE_TYPE_BIOS:
2252 subdir = "";
2253 break;
2254 case QEMU_FILE_TYPE_KEYMAP:
2255 subdir = "keymaps/";
2256 break;
2257 default:
2258 abort();
2259 }
2260
2261 for (i = 0; i < data_dir_idx; i++) {
2262 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2263 if (access(buf, R_OK) == 0) {
2264 trace_load_file(name, buf);
2265 return buf;
2266 }
2267 g_free(buf);
2268 }
2269 return NULL;
2270 }
2271
2272 static void qemu_add_data_dir(const char *path)
2273 {
2274 int i;
2275
2276 if (path == NULL) {
2277 return;
2278 }
2279 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2280 return;
2281 }
2282 for (i = 0; i < data_dir_idx; i++) {
2283 if (strcmp(data_dir[i], path) == 0) {
2284 return; /* duplicate */
2285 }
2286 }
2287 data_dir[data_dir_idx++] = g_strdup(path);
2288 }
2289
2290 static inline bool nonempty_str(const char *str)
2291 {
2292 return str && *str;
2293 }
2294
2295 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2296 {
2297 gchar *buf;
2298 size_t size;
2299 const char *name, *file, *str;
2300 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2301
2302 if (fw_cfg == NULL) {
2303 error_report("fw_cfg device not available");
2304 return -1;
2305 }
2306 name = qemu_opt_get(opts, "name");
2307 file = qemu_opt_get(opts, "file");
2308 str = qemu_opt_get(opts, "string");
2309
2310 /* we need name and either a file or the content string */
2311 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2312 error_report("invalid argument(s)");
2313 return -1;
2314 }
2315 if (nonempty_str(file) && nonempty_str(str)) {
2316 error_report("file and string are mutually exclusive");
2317 return -1;
2318 }
2319 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2320 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2321 return -1;
2322 }
2323 if (strncmp(name, "opt/", 4) != 0) {
2324 warn_report("externally provided fw_cfg item names "
2325 "should be prefixed with \"opt/\"");
2326 }
2327 if (nonempty_str(str)) {
2328 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2329 buf = g_memdup(str, size);
2330 } else {
2331 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2332 error_report("can't load %s", file);
2333 return -1;
2334 }
2335 }
2336 /* For legacy, keep user files in a specific global order. */
2337 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2338 fw_cfg_add_file(fw_cfg, name, buf, size);
2339 fw_cfg_reset_order_override(fw_cfg);
2340 return 0;
2341 }
2342
2343 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2344 {
2345 return qdev_device_help(opts);
2346 }
2347
2348 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2349 {
2350 Error *err = NULL;
2351 DeviceState *dev;
2352
2353 dev = qdev_device_add(opts, &err);
2354 if (!dev) {
2355 error_report_err(err);
2356 return -1;
2357 }
2358 object_unref(OBJECT(dev));
2359 return 0;
2360 }
2361
2362 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2363 {
2364 Error *local_err = NULL;
2365
2366 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2367 if (local_err) {
2368 error_report_err(local_err);
2369 return -1;
2370 }
2371 exit(0);
2372 }
2373 return 0;
2374 }
2375
2376 #ifdef CONFIG_VIRTFS
2377 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2378 {
2379 return qemu_fsdev_add(opts);
2380 }
2381 #endif
2382
2383 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2384 {
2385 Chardev *chr;
2386 const char *chardev;
2387 const char *mode;
2388 int flags;
2389
2390 mode = qemu_opt_get(opts, "mode");
2391 if (mode == NULL) {
2392 mode = "readline";
2393 }
2394 if (strcmp(mode, "readline") == 0) {
2395 flags = MONITOR_USE_READLINE;
2396 } else if (strcmp(mode, "control") == 0) {
2397 flags = MONITOR_USE_CONTROL;
2398 } else {
2399 error_report("unknown monitor mode \"%s\"", mode);
2400 exit(1);
2401 }
2402
2403 if (qemu_opt_get_bool(opts, "pretty", 0))
2404 flags |= MONITOR_USE_PRETTY;
2405
2406 chardev = qemu_opt_get(opts, "chardev");
2407 chr = qemu_chr_find(chardev);
2408 if (chr == NULL) {
2409 error_report("chardev \"%s\" not found", chardev);
2410 exit(1);
2411 }
2412
2413 monitor_init(chr, flags);
2414 return 0;
2415 }
2416
2417 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2418 {
2419 static int monitor_device_index = 0;
2420 QemuOpts *opts;
2421 const char *p;
2422 char label[32];
2423
2424 if (strstart(optarg, "chardev:", &p)) {
2425 snprintf(label, sizeof(label), "%s", p);
2426 } else {
2427 snprintf(label, sizeof(label), "compat_monitor%d",
2428 monitor_device_index);
2429 opts = qemu_chr_parse_compat(label, optarg);
2430 if (!opts) {
2431 error_report("parse error: %s", optarg);
2432 exit(1);
2433 }
2434 }
2435
2436 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2437 qemu_opt_set(opts, "mode", mode, &error_abort);
2438 qemu_opt_set(opts, "chardev", label, &error_abort);
2439 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2440 monitor_device_index++;
2441 }
2442
2443 struct device_config {
2444 enum {
2445 DEV_USB, /* -usbdevice */
2446 DEV_BT, /* -bt */
2447 DEV_SERIAL, /* -serial */
2448 DEV_PARALLEL, /* -parallel */
2449 DEV_VIRTCON, /* -virtioconsole */
2450 DEV_DEBUGCON, /* -debugcon */
2451 DEV_GDB, /* -gdb, -s */
2452 DEV_SCLP, /* s390 sclp */
2453 } type;
2454 const char *cmdline;
2455 Location loc;
2456 QTAILQ_ENTRY(device_config) next;
2457 };
2458
2459 static QTAILQ_HEAD(, device_config) device_configs =
2460 QTAILQ_HEAD_INITIALIZER(device_configs);
2461
2462 static void add_device_config(int type, const char *cmdline)
2463 {
2464 struct device_config *conf;
2465
2466 conf = g_malloc0(sizeof(*conf));
2467 conf->type = type;
2468 conf->cmdline = cmdline;
2469 loc_save(&conf->loc);
2470 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2471 }
2472
2473 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2474 {
2475 struct device_config *conf;
2476 int rc;
2477
2478 QTAILQ_FOREACH(conf, &device_configs, next) {
2479 if (conf->type != type)
2480 continue;
2481 loc_push_restore(&conf->loc);
2482 rc = func(conf->cmdline);
2483 loc_pop(&conf->loc);
2484 if (rc) {
2485 return rc;
2486 }
2487 }
2488 return 0;
2489 }
2490
2491 static int serial_parse(const char *devname)
2492 {
2493 static int index = 0;
2494 char label[32];
2495
2496 if (strcmp(devname, "none") == 0)
2497 return 0;
2498 if (index == MAX_SERIAL_PORTS) {
2499 error_report("too many serial ports");
2500 exit(1);
2501 }
2502 snprintf(label, sizeof(label), "serial%d", index);
2503 serial_hds[index] = qemu_chr_new(label, devname);
2504 if (!serial_hds[index]) {
2505 error_report("could not connect serial device"
2506 " to character backend '%s'", devname);
2507 return -1;
2508 }
2509 index++;
2510 return 0;
2511 }
2512
2513 static int parallel_parse(const char *devname)
2514 {
2515 static int index = 0;
2516 char label[32];
2517
2518 if (strcmp(devname, "none") == 0)
2519 return 0;
2520 if (index == MAX_PARALLEL_PORTS) {
2521 error_report("too many parallel ports");
2522 exit(1);
2523 }
2524 snprintf(label, sizeof(label), "parallel%d", index);
2525 parallel_hds[index] = qemu_chr_new(label, devname);
2526 if (!parallel_hds[index]) {
2527 error_report("could not connect parallel device"
2528 " to character backend '%s'", devname);
2529 return -1;
2530 }
2531 index++;
2532 return 0;
2533 }
2534
2535 static int virtcon_parse(const char *devname)
2536 {
2537 QemuOptsList *device = qemu_find_opts("device");
2538 static int index = 0;
2539 char label[32];
2540 QemuOpts *bus_opts, *dev_opts;
2541
2542 if (strcmp(devname, "none") == 0)
2543 return 0;
2544 if (index == MAX_VIRTIO_CONSOLES) {
2545 error_report("too many virtio consoles");
2546 exit(1);
2547 }
2548
2549 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2550 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2551
2552 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2553 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2554
2555 snprintf(label, sizeof(label), "virtcon%d", index);
2556 virtcon_hds[index] = qemu_chr_new(label, devname);
2557 if (!virtcon_hds[index]) {
2558 error_report("could not connect virtio console"
2559 " to character backend '%s'", devname);
2560 return -1;
2561 }
2562 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2563
2564 index++;
2565 return 0;
2566 }
2567
2568 static int sclp_parse(const char *devname)
2569 {
2570 QemuOptsList *device = qemu_find_opts("device");
2571 static int index = 0;
2572 char label[32];
2573 QemuOpts *dev_opts;
2574
2575 if (strcmp(devname, "none") == 0) {
2576 return 0;
2577 }
2578 if (index == MAX_SCLP_CONSOLES) {
2579 error_report("too many sclp consoles");
2580 exit(1);
2581 }
2582
2583 assert(arch_type == QEMU_ARCH_S390X);
2584
2585 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2586 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2587
2588 snprintf(label, sizeof(label), "sclpcon%d", index);
2589 sclp_hds[index] = qemu_chr_new(label, devname);
2590 if (!sclp_hds[index]) {
2591 error_report("could not connect sclp console"
2592 " to character backend '%s'", devname);
2593 return -1;
2594 }
2595 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2596
2597 index++;
2598 return 0;
2599 }
2600
2601 static int debugcon_parse(const char *devname)
2602 {
2603 QemuOpts *opts;
2604
2605 if (!qemu_chr_new("debugcon", devname)) {
2606 exit(1);
2607 }
2608 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2609 if (!opts) {
2610 error_report("already have a debugcon device");
2611 exit(1);
2612 }
2613 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2614 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2615 return 0;
2616 }
2617
2618 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2619 {
2620 const MachineClass *mc1 = a, *mc2 = b;
2621 int res;
2622
2623 if (mc1->family == NULL) {
2624 if (mc2->family == NULL) {
2625 /* Compare standalone machine types against each other; they sort
2626 * in increasing order.
2627 */
2628 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2629 object_class_get_name(OBJECT_CLASS(mc2)));
2630 }
2631
2632 /* Standalone machine types sort after families. */
2633 return 1;
2634 }
2635
2636 if (mc2->family == NULL) {
2637 /* Families sort before standalone machine types. */
2638 return -1;
2639 }
2640
2641 /* Families sort between each other alphabetically increasingly. */
2642 res = strcmp(mc1->family, mc2->family);
2643 if (res != 0) {
2644 return res;
2645 }
2646
2647 /* Within the same family, machine types sort in decreasing order. */
2648 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2649 object_class_get_name(OBJECT_CLASS(mc1)));
2650 }
2651
2652 static MachineClass *machine_parse(const char *name)
2653 {
2654 MachineClass *mc = NULL;
2655 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2656
2657 if (name) {
2658 mc = find_machine(name);
2659 }
2660 if (mc) {
2661 g_slist_free(machines);
2662 return mc;
2663 }
2664 if (name && !is_help_option(name)) {
2665 error_report("unsupported machine type");
2666 error_printf("Use -machine help to list supported machines\n");
2667 } else {
2668 printf("Supported machines are:\n");
2669 machines = g_slist_sort(machines, machine_class_cmp);
2670 for (el = machines; el; el = el->next) {
2671 MachineClass *mc = el->data;
2672 if (mc->alias) {
2673 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2674 }
2675 printf("%-20s %s%s\n", mc->name, mc->desc,
2676 mc->is_default ? " (default)" : "");
2677 }
2678 }
2679
2680 g_slist_free(machines);
2681 exit(!name || !is_help_option(name));
2682 }
2683
2684 void qemu_add_exit_notifier(Notifier *notify)
2685 {
2686 notifier_list_add(&exit_notifiers, notify);
2687 }
2688
2689 void qemu_remove_exit_notifier(Notifier *notify)
2690 {
2691 notifier_remove(notify);
2692 }
2693
2694 static void qemu_run_exit_notifiers(void)
2695 {
2696 notifier_list_notify(&exit_notifiers, NULL);
2697 }
2698
2699 bool machine_init_done;
2700
2701 void qemu_add_machine_init_done_notifier(Notifier *notify)
2702 {
2703 notifier_list_add(&machine_init_done_notifiers, notify);
2704 if (machine_init_done) {
2705 notify->notify(notify, NULL);
2706 }
2707 }
2708
2709 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2710 {
2711 notifier_remove(notify);
2712 }
2713
2714 static void qemu_run_machine_init_done_notifiers(void)
2715 {
2716 machine_init_done = true;
2717 notifier_list_notify(&machine_init_done_notifiers, NULL);
2718 }
2719
2720 static const QEMUOption *lookup_opt(int argc, char **argv,
2721 const char **poptarg, int *poptind)
2722 {
2723 const QEMUOption *popt;
2724 int optind = *poptind;
2725 char *r = argv[optind];
2726 const char *optarg;
2727
2728 loc_set_cmdline(argv, optind, 1);
2729 optind++;
2730 /* Treat --foo the same as -foo. */
2731 if (r[1] == '-')
2732 r++;
2733 popt = qemu_options;
2734 for(;;) {
2735 if (!popt->name) {
2736 error_report("invalid option");
2737 exit(1);
2738 }
2739 if (!strcmp(popt->name, r + 1))
2740 break;
2741 popt++;
2742 }
2743 if (popt->flags & HAS_ARG) {
2744 if (optind >= argc) {
2745 error_report("requires an argument");
2746 exit(1);
2747 }
2748 optarg = argv[optind++];
2749 loc_set_cmdline(argv, optind - 2, 2);
2750 } else {
2751 optarg = NULL;
2752 }
2753
2754 *poptarg = optarg;
2755 *poptind = optind;
2756
2757 return popt;
2758 }
2759
2760 static MachineClass *select_machine(void)
2761 {
2762 MachineClass *machine_class = find_default_machine();
2763 const char *optarg;
2764 QemuOpts *opts;
2765 Location loc;
2766
2767 loc_push_none(&loc);
2768
2769 opts = qemu_get_machine_opts();
2770 qemu_opts_loc_restore(opts);
2771
2772 optarg = qemu_opt_get(opts, "type");
2773 if (optarg) {
2774 machine_class = machine_parse(optarg);
2775 }
2776
2777 if (!machine_class) {
2778 error_report("No machine specified, and there is no default");
2779 error_printf("Use -machine help to list supported machines\n");
2780 exit(1);
2781 }
2782
2783 loc_pop(&loc);
2784 return machine_class;
2785 }
2786
2787 static int machine_set_property(void *opaque,
2788 const char *name, const char *value,
2789 Error **errp)
2790 {
2791 Object *obj = OBJECT(opaque);
2792 Error *local_err = NULL;
2793 char *p, *qom_name;
2794
2795 if (strcmp(name, "type") == 0) {
2796 return 0;
2797 }
2798
2799 qom_name = g_strdup(name);
2800 for (p = qom_name; *p; p++) {
2801 if (*p == '_') {
2802 *p = '-';
2803 }
2804 }
2805
2806 object_property_parse(obj, value, qom_name, &local_err);
2807 g_free(qom_name);
2808
2809 if (local_err) {
2810 error_report_err(local_err);
2811 return -1;
2812 }
2813
2814 return 0;
2815 }
2816
2817
2818 /*
2819 * Initial object creation happens before all other
2820 * QEMU data types are created. The majority of objects
2821 * can be created at this point. The rng-egd object
2822 * cannot be created here, as it depends on the chardev
2823 * already existing.
2824 */
2825 static bool object_create_initial(const char *type)
2826 {
2827 if (g_str_equal(type, "rng-egd") ||
2828 g_str_has_prefix(type, "pr-manager-")) {
2829 return false;
2830 }
2831
2832 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2833 if (g_str_equal(type, "cryptodev-vhost-user")) {
2834 return false;
2835 }
2836 #endif
2837
2838 /*
2839 * return false for concrete netfilters since
2840 * they depend on netdevs already existing
2841 */
2842 if (g_str_equal(type, "filter-buffer") ||
2843 g_str_equal(type, "filter-dump") ||
2844 g_str_equal(type, "filter-mirror") ||
2845 g_str_equal(type, "filter-redirector") ||
2846 g_str_equal(type, "colo-compare") ||
2847 g_str_equal(type, "filter-rewriter") ||
2848 g_str_equal(type, "filter-replay")) {
2849 return false;
2850 }
2851
2852 /* Memory allocation by backends needs to be done
2853 * after configure_accelerator() (due to the tcg_enabled()
2854 * checks at memory_region_init_*()).
2855 *
2856 * Also, allocation of large amounts of memory may delay
2857 * chardev initialization for too long, and trigger timeouts
2858 * on software that waits for a monitor socket to be created
2859 * (e.g. libvirt).
2860 */
2861 if (g_str_has_prefix(type, "memory-backend-")) {
2862 return false;
2863 }
2864
2865 return true;
2866 }
2867
2868
2869 /*
2870 * The remainder of object creation happens after the
2871 * creation of chardev, fsdev, net clients and device data types.
2872 */
2873 static bool object_create_delayed(const char *type)
2874 {
2875 return !object_create_initial(type);
2876 }
2877
2878
2879 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2880 MachineClass *mc)
2881 {
2882 uint64_t sz;
2883 const char *mem_str;
2884 const char *maxmem_str, *slots_str;
2885 const ram_addr_t default_ram_size = mc->default_ram_size;
2886 QemuOpts *opts = qemu_find_opts_singleton("memory");
2887 Location loc;
2888
2889 loc_push_none(&loc);
2890 qemu_opts_loc_restore(opts);
2891
2892 sz = 0;
2893 mem_str = qemu_opt_get(opts, "size");
2894 if (mem_str) {
2895 if (!*mem_str) {
2896 error_report("missing 'size' option value");
2897 exit(EXIT_FAILURE);
2898 }
2899
2900 sz = qemu_opt_get_size(opts, "size", ram_size);
2901
2902 /* Fix up legacy suffix-less format */
2903 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2904 uint64_t overflow_check = sz;
2905
2906 sz <<= 20;
2907 if ((sz >> 20) != overflow_check) {
2908 error_report("too large 'size' option value");
2909 exit(EXIT_FAILURE);
2910 }
2911 }
2912 }
2913
2914 /* backward compatibility behaviour for case "-m 0" */
2915 if (sz == 0) {
2916 sz = default_ram_size;
2917 }
2918
2919 sz = QEMU_ALIGN_UP(sz, 8192);
2920 ram_size = sz;
2921 if (ram_size != sz) {
2922 error_report("ram size too large");
2923 exit(EXIT_FAILURE);
2924 }
2925
2926 /* store value for the future use */
2927 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2928 *maxram_size = ram_size;
2929
2930 maxmem_str = qemu_opt_get(opts, "maxmem");
2931 slots_str = qemu_opt_get(opts, "slots");
2932 if (maxmem_str && slots_str) {
2933 uint64_t slots;
2934
2935 sz = qemu_opt_get_size(opts, "maxmem", 0);
2936 slots = qemu_opt_get_number(opts, "slots", 0);
2937 if (sz < ram_size) {
2938 error_report("invalid value of -m option maxmem: "
2939 "maximum memory size (0x%" PRIx64 ") must be at least "
2940 "the initial memory size (0x" RAM_ADDR_FMT ")",
2941 sz, ram_size);
2942 exit(EXIT_FAILURE);
2943 } else if (sz > ram_size) {
2944 if (!slots) {
2945 error_report("invalid value of -m option: maxmem was "
2946 "specified, but no hotplug slots were specified");
2947 exit(EXIT_FAILURE);
2948 }
2949 } else if (slots) {
2950 error_report("invalid value of -m option maxmem: "
2951 "memory slots were specified but maximum memory size "
2952 "(0x%" PRIx64 ") is equal to the initial memory size "
2953 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2954 exit(EXIT_FAILURE);
2955 }
2956
2957 *maxram_size = sz;
2958 *ram_slots = slots;
2959 } else if ((!maxmem_str && slots_str) ||
2960 (maxmem_str && !slots_str)) {
2961 error_report("invalid -m option value: missing "
2962 "'%s' option", slots_str ? "maxmem" : "slots");
2963 exit(EXIT_FAILURE);
2964 }
2965
2966 loc_pop(&loc);
2967 }
2968
2969 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2970 {
2971 GlobalProperty *g;
2972
2973 g = g_malloc0(sizeof(*g));
2974 g->driver = qemu_opt_get(opts, "driver");
2975 g->property = qemu_opt_get(opts, "property");
2976 g->value = qemu_opt_get(opts, "value");
2977 g->user_provided = true;
2978 g->errp = &error_fatal;
2979 qdev_prop_register_global(g);
2980 return 0;
2981 }
2982
2983 static int qemu_read_default_config_file(void)
2984 {
2985 int ret;
2986
2987 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2988 if (ret < 0 && ret != -ENOENT) {
2989 return ret;
2990 }
2991
2992 return 0;
2993 }
2994
2995 static void user_register_global_props(void)
2996 {
2997 qemu_opts_foreach(qemu_find_opts("global"),
2998 global_init_func, NULL, NULL);
2999 }
3000
3001 /*
3002 * Note: we should see that these properties are actually having a
3003 * priority: accel < machine < user. This means e.g. when user
3004 * specifies something in "-global", it'll always be used with highest
3005 * priority than either machine/accelerator compat properties.
3006 */
3007 static void register_global_properties(MachineState *ms)
3008 {
3009 accel_register_compat_props(ms->accelerator);
3010 machine_register_compat_props(ms);
3011 user_register_global_props();
3012 }
3013
3014 int main(int argc, char **argv, char **envp)
3015 {
3016 int i;
3017 int snapshot, linux_boot;
3018 const char *initrd_filename;
3019 const char *kernel_filename, *kernel_cmdline;
3020 const char *boot_order = NULL;
3021 const char *boot_once = NULL;
3022 DisplayState *ds;
3023 QemuOpts *opts, *machine_opts;
3024 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3025 QemuOptsList *olist;
3026 int optind;
3027 const char *optarg;
3028 const char *loadvm = NULL;
3029 MachineClass *machine_class;
3030 const char *cpu_model;
3031 const char *vga_model = NULL;
3032 const char *qtest_chrdev = NULL;
3033 const char *qtest_log = NULL;
3034 const char *pid_file = NULL;
3035 const char *incoming = NULL;
3036 bool userconfig = true;
3037 bool nographic = false;
3038 int display_remote = 0;
3039 const char *log_mask = NULL;
3040 const char *log_file = NULL;
3041 char *trace_file = NULL;
3042 ram_addr_t maxram_size;
3043 uint64_t ram_slots = 0;
3044 FILE *vmstate_dump_file = NULL;
3045 Error *main_loop_err = NULL;
3046 Error *err = NULL;
3047 bool list_data_dirs = false;
3048 char *dir, **dirs;
3049 typedef struct BlockdevOptions_queue {
3050 BlockdevOptions *bdo;
3051 Location loc;
3052 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3053 } BlockdevOptions_queue;
3054 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3055 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3056
3057 module_call_init(MODULE_INIT_TRACE);
3058
3059 qemu_init_cpu_list();
3060 qemu_init_cpu_loop();
3061
3062 qemu_mutex_lock_iothread();
3063
3064 atexit(qemu_run_exit_notifiers);
3065 error_set_progname(argv[0]);
3066 qemu_init_exec_dir(argv[0]);
3067
3068 module_call_init(MODULE_INIT_QOM);
3069
3070 qemu_add_opts(&qemu_drive_opts);
3071 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3072 qemu_add_drive_opts(&qemu_common_drive_opts);
3073 qemu_add_drive_opts(&qemu_drive_opts);
3074 qemu_add_drive_opts(&bdrv_runtime_opts);
3075 qemu_add_opts(&qemu_chardev_opts);
3076 qemu_add_opts(&qemu_device_opts);
3077 qemu_add_opts(&qemu_netdev_opts);
3078 qemu_add_opts(&qemu_nic_opts);
3079 qemu_add_opts(&qemu_net_opts);
3080 qemu_add_opts(&qemu_rtc_opts);
3081 qemu_add_opts(&qemu_global_opts);
3082 qemu_add_opts(&qemu_mon_opts);
3083 qemu_add_opts(&qemu_trace_opts);
3084 qemu_add_opts(&qemu_option_rom_opts);
3085 qemu_add_opts(&qemu_machine_opts);
3086 qemu_add_opts(&qemu_accel_opts);
3087 qemu_add_opts(&qemu_mem_opts);
3088 qemu_add_opts(&qemu_smp_opts);
3089 qemu_add_opts(&qemu_boot_opts);
3090 qemu_add_opts(&qemu_sandbox_opts);
3091 qemu_add_opts(&qemu_add_fd_opts);
3092 qemu_add_opts(&qemu_object_opts);
3093 qemu_add_opts(&qemu_tpmdev_opts);
3094 qemu_add_opts(&qemu_realtime_opts);
3095 qemu_add_opts(&qemu_msg_opts);
3096 qemu_add_opts(&qemu_name_opts);
3097 qemu_add_opts(&qemu_numa_opts);
3098 qemu_add_opts(&qemu_icount_opts);
3099 qemu_add_opts(&qemu_semihosting_config_opts);
3100 qemu_add_opts(&qemu_fw_cfg_opts);
3101 module_call_init(MODULE_INIT_OPTS);
3102
3103 runstate_init();
3104
3105 if (qcrypto_init(&err) < 0) {
3106 error_reportf_err(err, "cannot initialize crypto: ");
3107 exit(1);
3108 }
3109 rtc_clock = QEMU_CLOCK_HOST;
3110
3111 QLIST_INIT (&vm_change_state_head);
3112 os_setup_early_signal_handling();
3113
3114 cpu_model = NULL;
3115 snapshot = 0;
3116
3117 nb_nics = 0;
3118
3119 bdrv_init_with_whitelist();
3120
3121 autostart = 1;
3122
3123 /* first pass of option parsing */
3124 optind = 1;
3125 while (optind < argc) {
3126 if (argv[optind][0] != '-') {
3127 /* disk image */
3128 optind++;
3129 } else {
3130 const QEMUOption *popt;
3131
3132 popt = lookup_opt(argc, argv, &optarg, &optind);
3133 switch (popt->index) {
3134 case QEMU_OPTION_nodefconfig:
3135 case QEMU_OPTION_nouserconfig:
3136 userconfig = false;
3137 break;
3138 }
3139 }
3140 }
3141
3142 if (userconfig) {
3143 if (qemu_read_default_config_file() < 0) {
3144 exit(1);
3145 }
3146 }
3147
3148 /* second pass of option parsing */
3149 optind = 1;
3150 for(;;) {
3151 if (optind >= argc)
3152 break;
3153 if (argv[optind][0] != '-') {
3154 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3155 } else {
3156 const QEMUOption *popt;
3157
3158 popt = lookup_opt(argc, argv, &optarg, &optind);
3159 if (!(popt->arch_mask & arch_type)) {
3160 error_report("Option not supported for this target");
3161 exit(1);
3162 }
3163 switch(popt->index) {
3164 case QEMU_OPTION_no_kvm_irqchip: {
3165 olist = qemu_find_opts("machine");
3166 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3167 break;
3168 }
3169 case QEMU_OPTION_cpu:
3170 /* hw initialization will check this */
3171 cpu_model = optarg;
3172 break;
3173 case QEMU_OPTION_hda:
3174 case QEMU_OPTION_hdb:
3175 case QEMU_OPTION_hdc:
3176 case QEMU_OPTION_hdd:
3177 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3178 HD_OPTS);
3179 break;
3180 case QEMU_OPTION_blockdev:
3181 {
3182 Visitor *v;
3183 BlockdevOptions_queue *bdo;
3184
3185 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3186 if (!v) {
3187 error_report_err(err);
3188 exit(1);
3189 }
3190
3191 bdo = g_new(BlockdevOptions_queue, 1);
3192 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3193 &error_fatal);
3194 visit_free(v);
3195 loc_save(&bdo->loc);
3196 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3197 break;
3198 }
3199 case QEMU_OPTION_drive:
3200 if (drive_def(optarg) == NULL) {
3201 exit(1);
3202 }
3203 break;
3204 case QEMU_OPTION_set:
3205 if (qemu_set_option(optarg) != 0)
3206 exit(1);
3207 break;
3208 case QEMU_OPTION_global:
3209 if (qemu_global_option(optarg) != 0)
3210 exit(1);
3211 break;
3212 case QEMU_OPTION_mtdblock:
3213 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3214 break;
3215 case QEMU_OPTION_sd:
3216 drive_add(IF_SD, -1, optarg, SD_OPTS);
3217 break;
3218 case QEMU_OPTION_pflash:
3219 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3220 break;
3221 case QEMU_OPTION_snapshot:
3222 snapshot = 1;
3223 break;
3224 case QEMU_OPTION_numa:
3225 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3226 optarg, true);
3227 if (!opts) {
3228 exit(1);
3229 }
3230 break;
3231 case QEMU_OPTION_display:
3232 parse_display(optarg);
3233 break;
3234 case QEMU_OPTION_nographic:
3235 olist = qemu_find_opts("machine");
3236 qemu_opts_parse_noisily(olist, "graphics=off", false);
3237 nographic = true;
3238 dpy.type = DISPLAY_TYPE_NONE;
3239 break;
3240 case QEMU_OPTION_curses:
3241 #ifdef CONFIG_CURSES
3242 dpy.type = DISPLAY_TYPE_CURSES;
3243 #else
3244 error_report("curses support is disabled");
3245 exit(1);
3246 #endif
3247 break;
3248 case QEMU_OPTION_portrait:
3249 graphic_rotate = 90;
3250 break;
3251 case QEMU_OPTION_rotate:
3252 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3253 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3254 graphic_rotate != 180 && graphic_rotate != 270) {
3255 error_report("only 90, 180, 270 deg rotation is available");
3256 exit(1);
3257 }
3258 break;
3259 case QEMU_OPTION_kernel:
3260 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3261 &error_abort);
3262 break;
3263 case QEMU_OPTION_initrd:
3264 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3265 &error_abort);
3266 break;
3267 case QEMU_OPTION_append:
3268 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3269 &error_abort);
3270 break;
3271 case QEMU_OPTION_dtb:
3272 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3273 &error_abort);
3274 break;
3275 case QEMU_OPTION_cdrom:
3276 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3277 break;
3278 case QEMU_OPTION_boot:
3279 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3280 optarg, true);
3281 if (!opts) {
3282 exit(1);
3283 }
3284 break;
3285 case QEMU_OPTION_fda:
3286 case QEMU_OPTION_fdb:
3287 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3288 optarg, FD_OPTS);
3289 break;
3290 case QEMU_OPTION_no_fd_bootchk:
3291 fd_bootchk = 0;
3292 break;
3293 case QEMU_OPTION_netdev:
3294 default_net = 0;
3295 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3296 exit(1);
3297 }
3298 break;
3299 case QEMU_OPTION_nic:
3300 default_net = 0;
3301 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3302 exit(1);
3303 }
3304 break;
3305 case QEMU_OPTION_net:
3306 default_net = 0;
3307 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3308 exit(1);
3309 }
3310 break;
3311 #ifdef CONFIG_LIBISCSI
3312 case QEMU_OPTION_iscsi:
3313 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3314 optarg, false);
3315 if (!opts) {
3316 exit(1);
3317 }
3318 break;
3319 #endif
3320 #ifdef CONFIG_SLIRP
3321 case QEMU_OPTION_tftp:
3322 error_report("The -tftp option is deprecated. "
3323 "Please use '-netdev user,tftp=...' instead.");
3324 legacy_tftp_prefix = optarg;
3325 break;
3326 case QEMU_OPTION_bootp:
3327 error_report("The -bootp option is deprecated. "
3328 "Please use '-netdev user,bootfile=...' instead.");
3329 legacy_bootp_filename = optarg;
3330 break;
3331 case QEMU_OPTION_redir:
3332 error_report("The -redir option is deprecated. "
3333 "Please use '-netdev user,hostfwd=...' instead.");
3334 if (net_slirp_redir(optarg) < 0)
3335 exit(1);
3336 break;
3337 #endif
3338 case QEMU_OPTION_bt:
3339 add_device_config(DEV_BT, optarg);
3340 break;
3341 case QEMU_OPTION_audio_help:
3342 AUD_help ();
3343 exit (0);
3344 break;
3345 case QEMU_OPTION_soundhw:
3346 select_soundhw (optarg);
3347 break;
3348 case QEMU_OPTION_h:
3349 help(0);
3350 break;
3351 case QEMU_OPTION_version:
3352 version();
3353 exit(0);
3354 break;
3355 case QEMU_OPTION_m:
3356 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3357 optarg, true);
3358 if (!opts) {
3359 exit(EXIT_FAILURE);
3360 }
3361 break;
3362 #ifdef CONFIG_TPM
3363 case QEMU_OPTION_tpmdev:
3364 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3365 exit(1);
3366 }
3367 break;
3368 #endif
3369 case QEMU_OPTION_mempath:
3370 mem_path = optarg;
3371 break;
3372 case QEMU_OPTION_mem_prealloc:
3373 mem_prealloc = 1;
3374 break;
3375 case QEMU_OPTION_d:
3376 log_mask = optarg;
3377 break;
3378 case QEMU_OPTION_D:
3379 log_file = optarg;
3380 break;
3381 case QEMU_OPTION_DFILTER:
3382 qemu_set_dfilter_ranges(optarg, &error_fatal);
3383 break;
3384 case QEMU_OPTION_s:
3385 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3386 break;
3387 case QEMU_OPTION_gdb:
3388 add_device_config(DEV_GDB, optarg);
3389 break;
3390 case QEMU_OPTION_L:
3391 if (is_help_option(optarg)) {
3392 list_data_dirs = true;
3393 } else {
3394 qemu_add_data_dir(optarg);
3395 }
3396 break;
3397 case QEMU_OPTION_bios:
3398 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3399 &error_abort);
3400 break;
3401 case QEMU_OPTION_singlestep:
3402 singlestep = 1;
3403 break;
3404 case QEMU_OPTION_S:
3405 autostart = 0;
3406 break;
3407 case QEMU_OPTION_k:
3408 keyboard_layout = optarg;
3409 break;
3410 case QEMU_OPTION_localtime:
3411 rtc_utc = 0;
3412 warn_report("This option is deprecated, "
3413 "use '-rtc base=localtime' instead.");
3414 break;
3415 case QEMU_OPTION_vga:
3416 vga_model = optarg;
3417 default_vga = 0;
3418 break;
3419 case QEMU_OPTION_g:
3420 {
3421 const char *p;
3422 int w, h, depth;
3423 p = optarg;
3424 w = strtol(p, (char **)&p, 10);
3425 if (w <= 0) {
3426 graphic_error:
3427 error_report("invalid resolution or depth");
3428 exit(1);
3429 }
3430 if (*p != 'x')
3431 goto graphic_error;
3432 p++;
3433 h = strtol(p, (char **)&p, 10);
3434 if (h <= 0)
3435 goto graphic_error;
3436 if (*p == 'x') {
3437 p++;
3438 depth = strtol(p, (char **)&p, 10);
3439 if (depth != 8 && depth != 15 && depth != 16 &&
3440 depth != 24 && depth != 32)
3441 goto graphic_error;
3442 } else if (*p == '\0') {
3443 depth = graphic_depth;
3444 } else {
3445 goto graphic_error;
3446 }
3447
3448 graphic_width = w;
3449 graphic_height = h;
3450 graphic_depth = depth;
3451 }
3452 break;
3453 case QEMU_OPTION_echr:
3454 {
3455 char *r;
3456 term_escape_char = strtol(optarg, &r, 0);
3457 if (r == optarg)
3458 printf("Bad argument to echr\n");
3459 break;
3460 }
3461 case QEMU_OPTION_monitor:
3462 default_monitor = 0;
3463 if (strncmp(optarg, "none", 4)) {
3464 monitor_parse(optarg, "readline", false);
3465 }
3466 break;
3467 case QEMU_OPTION_qmp:
3468 monitor_parse(optarg, "control", false);
3469 default_monitor = 0;
3470 break;
3471 case QEMU_OPTION_qmp_pretty:
3472 monitor_parse(optarg, "control", true);
3473 default_monitor = 0;
3474 break;
3475 case QEMU_OPTION_mon:
3476 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3477 true);
3478 if (!opts) {
3479 exit(1);
3480 }
3481 default_monitor = 0;
3482 break;
3483 case QEMU_OPTION_chardev:
3484 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3485 optarg, true);
3486 if (!opts) {
3487 exit(1);
3488 }
3489 break;
3490 case QEMU_OPTION_fsdev:
3491 olist = qemu_find_opts("fsdev");
3492 if (!olist) {
3493 error_report("fsdev support is disabled");
3494 exit(1);
3495 }
3496 opts = qemu_opts_parse_noisily(olist, optarg, true);
3497 if (!opts) {
3498 exit(1);
3499 }
3500 break;
3501 case QEMU_OPTION_virtfs: {
3502 QemuOpts *fsdev;
3503 QemuOpts *device;
3504 const char *writeout, *sock_fd, *socket, *path, *security_model;
3505
3506 olist = qemu_find_opts("virtfs");
3507 if (!olist) {
3508 error_report("virtfs support is disabled");
3509 exit(1);
3510 }
3511 opts = qemu_opts_parse_noisily(olist, optarg, true);
3512 if (!opts) {
3513 exit(1);
3514 }
3515
3516 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3517 qemu_opt_get(opts, "mount_tag") == NULL) {
3518 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3519 exit(1);
3520 }
3521 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3522 qemu_opts_id(opts) ?:
3523 qemu_opt_get(opts, "mount_tag"),
3524 1, NULL);
3525 if (!fsdev) {
3526 error_report("duplicate or invalid fsdev id: %s",
3527 qemu_opt_get(opts, "mount_tag"));
3528 exit(1);
3529 }
3530
3531 writeout = qemu_opt_get(opts, "writeout");
3532 if (writeout) {
3533 #ifdef CONFIG_SYNC_FILE_RANGE
3534 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3535 #else
3536 error_report("writeout=immediate not supported "
3537 "on this platform");
3538 exit(1);
3539 #endif
3540 }
3541 qemu_opt_set(fsdev, "fsdriver",
3542 qemu_opt_get(opts, "fsdriver"), &error_abort);
3543 path = qemu_opt_get(opts, "path");
3544 if (path) {
3545 qemu_opt_set(fsdev, "path", path, &error_abort);
3546 }
3547 security_model = qemu_opt_get(opts, "security_model");
3548 if (security_model) {
3549 qemu_opt_set(fsdev, "security_model", security_model,
3550 &error_abort);
3551 }
3552 socket = qemu_opt_get(opts, "socket");
3553 if (socket) {
3554 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3555 }
3556 sock_fd = qemu_opt_get(opts, "sock_fd");
3557 if (sock_fd) {
3558 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3559 }
3560
3561 qemu_opt_set_bool(fsdev, "readonly",
3562 qemu_opt_get_bool(opts, "readonly", 0),
3563 &error_abort);
3564 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3565 &error_abort);
3566 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3567 qemu_opt_set(device, "fsdev",
3568 qemu_opts_id(fsdev), &error_abort);
3569 qemu_opt_set(device, "mount_tag",
3570 qemu_opt_get(opts, "mount_tag"), &error_abort);
3571 break;
3572 }
3573 case QEMU_OPTION_virtfs_synth: {
3574 QemuOpts *fsdev;
3575 QemuOpts *device;
3576
3577 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3578 1, NULL);
3579 if (!fsdev) {
3580 error_report("duplicate option: %s", "virtfs_synth");
3581 exit(1);
3582 }
3583 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3584
3585 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3586 &error_abort);
3587 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3588 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3589 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3590 break;
3591 }
3592 case QEMU_OPTION_serial:
3593 add_device_config(DEV_SERIAL, optarg);
3594 default_serial = 0;
3595 if (strncmp(optarg, "mon:", 4) == 0) {
3596 default_monitor = 0;
3597 }
3598 break;
3599 case QEMU_OPTION_watchdog:
3600 if (watchdog) {
3601 error_report("only one watchdog option may be given");
3602 return 1;
3603 }
3604 watchdog = optarg;
3605 break;
3606 case QEMU_OPTION_watchdog_action:
3607 if (select_watchdog_action(optarg) == -1) {
3608 error_report("unknown -watchdog-action parameter");
3609 exit(1);
3610 }
3611 break;
3612 case QEMU_OPTION_virtiocon:
3613 add_device_config(DEV_VIRTCON, optarg);
3614 default_virtcon = 0;
3615 if (strncmp(optarg, "mon:", 4) == 0) {
3616 default_monitor = 0;
3617 }
3618 break;
3619 case QEMU_OPTION_parallel:
3620 add_device_config(DEV_PARALLEL, optarg);
3621 default_parallel = 0;
3622 if (strncmp(optarg, "mon:", 4) == 0) {
3623 default_monitor = 0;
3624 }
3625 break;
3626 case QEMU_OPTION_debugcon:
3627 add_device_config(DEV_DEBUGCON, optarg);
3628 break;
3629 case QEMU_OPTION_loadvm:
3630 loadvm = optarg;
3631 break;
3632 case QEMU_OPTION_full_screen:
3633 dpy.has_full_screen = true;
3634 dpy.full_screen = true;
3635 break;
3636 case QEMU_OPTION_no_frame:
3637 g_printerr("The -no-frame switch is deprecated, and will be\n"
3638 "removed in a future release.\n");
3639 no_frame = 1;
3640 break;
3641 case QEMU_OPTION_alt_grab:
3642 alt_grab = 1;
3643 break;
3644 case QEMU_OPTION_ctrl_grab:
3645 ctrl_grab = 1;
3646 break;
3647 case QEMU_OPTION_no_quit:
3648 dpy.has_window_close = true;
3649 dpy.window_close = false;
3650 break;
3651 case QEMU_OPTION_sdl:
3652 #ifdef CONFIG_SDL
3653 dpy.type = DISPLAY_TYPE_SDL;
3654 break;
3655 #else
3656 error_report("SDL support is disabled");
3657 exit(1);
3658 #endif
3659 case QEMU_OPTION_pidfile:
3660 pid_file = optarg;
3661 break;
3662 case QEMU_OPTION_win2k_hack:
3663 win2k_install_hack = 1;
3664 break;
3665 case QEMU_OPTION_rtc_td_hack: {
3666 static GlobalProperty slew_lost_ticks = {
3667 .driver = "mc146818rtc",
3668 .property = "lost_tick_policy",
3669 .value = "slew",
3670 };
3671
3672 qdev_prop_register_global(&slew_lost_ticks);
3673 warn_report("This option is deprecated, "
3674 "use '-rtc driftfix=slew' instead.");
3675 break;
3676 }
3677 case QEMU_OPTION_acpitable:
3678 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3679 optarg, true);
3680 if (!opts) {
3681 exit(1);
3682 }
3683 acpi_table_add(opts, &error_fatal);
3684 break;
3685 case QEMU_OPTION_smbios:
3686 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3687 optarg, false);
3688 if (!opts) {
3689 exit(1);
3690 }
3691 smbios_entry_add(opts, &error_fatal);
3692 break;
3693 case QEMU_OPTION_fwcfg:
3694 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3695 optarg, true);
3696 if (opts == NULL) {
3697 exit(1);
3698 }
3699 break;
3700 case QEMU_OPTION_enable_kvm:
3701 olist = qemu_find_opts("machine");
3702 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3703 break;
3704 case QEMU_OPTION_enable_hax:
3705 olist = qemu_find_opts("machine");
3706 qemu_opts_parse_noisily(olist, "accel=hax", false);
3707 break;
3708 case QEMU_OPTION_M:
3709 case QEMU_OPTION_machine:
3710 olist = qemu_find_opts("machine");
3711 opts = qemu_opts_parse_noisily(olist, optarg, true);
3712 if (!opts) {
3713 exit(1);
3714 }
3715 break;
3716 case QEMU_OPTION_no_kvm:
3717 olist = qemu_find_opts("machine");
3718 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3719 break;
3720 case QEMU_OPTION_no_kvm_pit_reinjection: {
3721 static GlobalProperty kvm_pit_lost_tick_policy = {
3722 .driver = "kvm-pit",
3723 .property = "lost_tick_policy",
3724 .value = "discard",
3725 };
3726
3727 warn_report("deprecated, replaced by "
3728 "-global kvm-pit.lost_tick_policy=discard");
3729 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3730 break;
3731 }
3732 case QEMU_OPTION_accel:
3733 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3734 optarg, true);
3735 optarg = qemu_opt_get(accel_opts, "accel");
3736 if (!optarg || is_help_option(optarg)) {
3737 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3738 exit(0);
3739 }
3740 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3741 false, &error_abort);
3742 qemu_opt_set(opts, "accel", optarg, &error_abort);
3743 break;
3744 case QEMU_OPTION_usb:
3745 olist = qemu_find_opts("machine");
3746 qemu_opts_parse_noisily(olist, "usb=on", false);
3747 break;
3748 case QEMU_OPTION_usbdevice:
3749 error_report("'-usbdevice' is deprecated, please use "
3750 "'-device usb-...' instead");
3751 olist = qemu_find_opts("machine");
3752 qemu_opts_parse_noisily(olist, "usb=on", false);
3753 add_device_config(DEV_USB, optarg);
3754 break;
3755 case QEMU_OPTION_device:
3756 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3757 optarg, true)) {
3758 exit(1);
3759 }
3760 break;
3761 case QEMU_OPTION_smp:
3762 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3763 optarg, true)) {
3764 exit(1);
3765 }
3766 break;
3767 case QEMU_OPTION_vnc:
3768 vnc_parse(optarg, &error_fatal);
3769 break;
3770 case QEMU_OPTION_no_acpi:
3771 acpi_enabled = 0;
3772 break;
3773 case QEMU_OPTION_no_hpet:
3774 no_hpet = 1;
3775 break;
3776 case QEMU_OPTION_balloon:
3777 if (balloon_parse(optarg) < 0) {
3778 error_report("unknown -balloon argument %s", optarg);
3779 exit(1);
3780 }
3781 break;
3782 case QEMU_OPTION_no_reboot:
3783 no_reboot = 1;
3784 break;
3785 case QEMU_OPTION_no_shutdown:
3786 no_shutdown = 1;
3787 break;
3788 case QEMU_OPTION_show_cursor:
3789 cursor_hide = 0;
3790 break;
3791 case QEMU_OPTION_uuid:
3792 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3793 error_report("failed to parse UUID string: wrong format");
3794 exit(1);
3795 }
3796 qemu_uuid_set = true;
3797 break;
3798 case QEMU_OPTION_option_rom:
3799 if (nb_option_roms >= MAX_OPTION_ROMS) {
3800 error_report("too many option ROMs");
3801 exit(1);
3802 }
3803 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3804 optarg, true);
3805 if (!opts) {
3806 exit(1);
3807 }
3808 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3809 option_rom[nb_option_roms].bootindex =
3810 qemu_opt_get_number(opts, "bootindex", -1);
3811 if (!option_rom[nb_option_roms].name) {
3812 error_report("Option ROM file is not specified");
3813 exit(1);
3814 }
3815 nb_option_roms++;
3816 break;
3817 case QEMU_OPTION_semihosting:
3818 semihosting.enabled = true;
3819 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3820 break;
3821 case QEMU_OPTION_semihosting_config:
3822 semihosting.enabled = true;
3823 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3824 optarg, false);
3825 if (opts != NULL) {
3826 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3827 true);
3828 const char *target = qemu_opt_get(opts, "target");
3829 if (target != NULL) {
3830 if (strcmp("native", target) == 0) {
3831 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3832 } else if (strcmp("gdb", target) == 0) {
3833 semihosting.target = SEMIHOSTING_TARGET_GDB;
3834 } else if (strcmp("auto", target) == 0) {
3835 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3836 } else {
3837 error_report("unsupported semihosting-config %s",
3838 optarg);
3839 exit(1);
3840 }
3841 } else {
3842 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3843 }
3844 /* Set semihosting argument count and vector */
3845 qemu_opt_foreach(opts, add_semihosting_arg,
3846 &semihosting, NULL);
3847 } else {
3848 error_report("unsupported semihosting-config %s", optarg);
3849 exit(1);
3850 }
3851 break;
3852 case QEMU_OPTION_name:
3853 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3854 optarg, true);
3855 if (!opts) {
3856 exit(1);
3857 }
3858 break;
3859 case QEMU_OPTION_prom_env:
3860 if (nb_prom_envs >= MAX_PROM_ENVS) {
3861 error_report("too many prom variables");
3862 exit(1);
3863 }
3864 prom_envs[nb_prom_envs] = optarg;
3865 nb_prom_envs++;
3866 break;
3867 case QEMU_OPTION_old_param:
3868 old_param = 1;
3869 break;
3870 case QEMU_OPTION_clock:
3871 /* Clock options no longer exist. Keep this option for
3872 * backward compatibility.
3873 */
3874 break;
3875 case QEMU_OPTION_startdate:
3876 warn_report("This option is deprecated, use '-rtc base=' instead.");
3877 configure_rtc_date_offset(optarg, 1);
3878 break;
3879 case QEMU_OPTION_rtc:
3880 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3881 false);
3882 if (!opts) {
3883 exit(1);
3884 }
3885 configure_rtc(opts);
3886 break;
3887 case QEMU_OPTION_tb_size:
3888 #ifndef CONFIG_TCG
3889 error_report("TCG is disabled");
3890 exit(1);
3891 #endif
3892 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3893 error_report("Invalid argument to -tb-size");
3894 exit(1);
3895 }
3896 break;
3897 case QEMU_OPTION_icount:
3898 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3899 optarg, true);
3900 if (!icount_opts) {
3901 exit(1);
3902 }
3903 break;
3904 case QEMU_OPTION_incoming:
3905 if (!incoming) {
3906 runstate_set(RUN_STATE_INMIGRATE);
3907 }
3908 incoming = optarg;
3909 break;
3910 case QEMU_OPTION_only_migratable:
3911 /*
3912 * TODO: we can remove this option one day, and we
3913 * should all use:
3914 *
3915 * "-global migration.only-migratable=true"
3916 */
3917 qemu_global_option("migration.only-migratable=true");
3918 break;
3919 case QEMU_OPTION_nodefaults:
3920 has_defaults = 0;
3921 break;
3922 case QEMU_OPTION_xen_domid:
3923 if (!(xen_available())) {
3924 error_report("Option not supported for this target");
3925 exit(1);
3926 }
3927 xen_domid = atoi(optarg);
3928 break;
3929 case QEMU_OPTION_xen_create:
3930 if (!(xen_available())) {
3931 error_report("Option not supported for this target");
3932 exit(1);
3933 }
3934 xen_mode = XEN_CREATE;
3935 break;
3936 case QEMU_OPTION_xen_attach:
3937 if (!(xen_available())) {
3938 error_report("Option not supported for this target");
3939 exit(1);
3940 }
3941 xen_mode = XEN_ATTACH;
3942 break;
3943 case QEMU_OPTION_xen_domid_restrict:
3944 if (!(xen_available())) {
3945 error_report("Option not supported for this target");
3946 exit(1);
3947 }
3948 xen_domid_restrict = true;
3949 break;
3950 case QEMU_OPTION_trace:
3951 g_free(trace_file);
3952 trace_file = trace_opt_parse(optarg);
3953 break;
3954 case QEMU_OPTION_readconfig:
3955 {
3956 int ret = qemu_read_config_file(optarg);
3957 if (ret < 0) {
3958 error_report("read config %s: %s", optarg,
3959 strerror(-ret));
3960 exit(1);
3961 }
3962 break;
3963 }
3964 case QEMU_OPTION_spice:
3965 olist = qemu_find_opts("spice");
3966 if (!olist) {
3967 error_report("spice support is disabled");
3968 exit(1);
3969 }
3970 opts = qemu_opts_parse_noisily(olist, optarg, false);
3971 if (!opts) {
3972 exit(1);
3973 }
3974 display_remote++;
3975 break;
3976 case QEMU_OPTION_writeconfig:
3977 {
3978 FILE *fp;
3979 if (strcmp(optarg, "-") == 0) {
3980 fp = stdout;
3981 } else {
3982 fp = fopen(optarg, "w");
3983 if (fp == NULL) {
3984 error_report("open %s: %s", optarg,
3985 strerror(errno));
3986 exit(1);
3987 }
3988 }
3989 qemu_config_write(fp);
3990 if (fp != stdout) {
3991 fclose(fp);
3992 }
3993 break;
3994 }
3995 case QEMU_OPTION_qtest:
3996 qtest_chrdev = optarg;
3997 break;
3998 case QEMU_OPTION_qtest_log:
3999 qtest_log = optarg;
4000 break;
4001 case QEMU_OPTION_sandbox:
4002 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4003 optarg, true);
4004 if (!opts) {
4005 exit(1);
4006 }
4007 break;
4008 case QEMU_OPTION_add_fd:
4009 #ifndef _WIN32
4010 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4011 optarg, false);
4012 if (!opts) {
4013 exit(1);
4014 }
4015 #else
4016 error_report("File descriptor passing is disabled on this "
4017 "platform");
4018 exit(1);
4019 #endif
4020 break;
4021 case QEMU_OPTION_object:
4022 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4023 optarg, true);
4024 if (!opts) {
4025 exit(1);
4026 }
4027 break;
4028 case QEMU_OPTION_realtime:
4029 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4030 optarg, false);
4031 if (!opts) {
4032 exit(1);
4033 }
4034 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4035 break;
4036 case QEMU_OPTION_msg:
4037 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4038 false);
4039 if (!opts) {
4040 exit(1);
4041 }
4042 configure_msg(opts);
4043 break;
4044 case QEMU_OPTION_dump_vmstate:
4045 if (vmstate_dump_file) {
4046 error_report("only one '-dump-vmstate' "
4047 "option may be given");
4048 exit(1);
4049 }
4050 vmstate_dump_file = fopen(optarg, "w");
4051 if (vmstate_dump_file == NULL) {
4052 error_report("open %s: %s", optarg, strerror(errno));
4053 exit(1);
4054 }
4055 break;
4056 default:
4057 os_parse_cmd_args(popt->index, optarg);
4058 }
4059 }
4060 }
4061 /*
4062 * Clear error location left behind by the loop.
4063 * Best done right after the loop. Do not insert code here!
4064 */
4065 loc_set_none();
4066
4067 replay_configure(icount_opts);
4068
4069 machine_class = select_machine();
4070
4071 set_memory_options(&ram_slots, &maxram_size, machine_class);
4072
4073 os_daemonize();
4074 rcu_disable_atfork();
4075
4076 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4077 error_report("could not acquire pid file: %s", strerror(errno));
4078 exit(1);
4079 }
4080
4081 if (qemu_init_main_loop(&main_loop_err)) {
4082 error_report_err(main_loop_err);
4083 exit(1);
4084 }
4085
4086 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4087 parse_sandbox, NULL, NULL)) {
4088 exit(1);
4089 }
4090
4091 if (qemu_opts_foreach(qemu_find_opts("name"),
4092 parse_name, NULL, NULL)) {
4093 exit(1);
4094 }
4095
4096 #ifndef _WIN32
4097 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4098 parse_add_fd, NULL, NULL)) {
4099 exit(1);
4100 }
4101
4102 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4103 cleanup_add_fd, NULL, NULL)) {
4104 exit(1);
4105 }
4106 #endif
4107
4108 current_machine = MACHINE(object_new(object_class_get_name(
4109 OBJECT_CLASS(machine_class))));
4110 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4111 exit(0);
4112 }
4113 object_property_add_child(object_get_root(), "machine",
4114 OBJECT(current_machine), &error_abort);
4115
4116 if (machine_class->minimum_page_bits) {
4117 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4118 /* This would be a board error: specifying a minimum smaller than
4119 * a target's compile-time fixed setting.
4120 */
4121 g_assert_not_reached();
4122 }
4123 }
4124
4125 cpu_exec_init_all();
4126
4127 if (machine_class->hw_version) {
4128 qemu_set_hw_version(machine_class->hw_version);
4129 }
4130
4131 if (cpu_model && is_help_option(cpu_model)) {
4132 list_cpus(stdout, &fprintf, cpu_model);
4133 exit(0);
4134 }
4135
4136 if (!trace_init_backends()) {
4137 exit(1);
4138 }
4139 trace_init_file(trace_file);
4140
4141 /* Open the logfile at this point and set the log mask if necessary.
4142 */
4143 if (log_file) {
4144 qemu_set_log_filename(log_file, &error_fatal);
4145 }
4146
4147 if (log_mask) {
4148 int mask;
4149 mask = qemu_str_to_log_mask(log_mask);
4150 if (!mask) {
4151 qemu_print_log_usage(stdout);
4152 exit(1);
4153 }
4154 qemu_set_log(mask);
4155 } else {
4156 qemu_set_log(0);
4157 }
4158
4159 /* add configured firmware directories */
4160 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4161 for (i = 0; dirs[i] != NULL; i++) {
4162 qemu_add_data_dir(dirs[i]);
4163 }
4164 g_strfreev(dirs);
4165
4166 /* try to find datadir relative to the executable path */
4167 dir = os_find_datadir();
4168 qemu_add_data_dir(dir);
4169 g_free(dir);
4170
4171 /* add the datadir specified when building */
4172 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4173
4174 /* -L help lists the data directories and exits. */
4175 if (list_data_dirs) {
4176 for (i = 0; i < data_dir_idx; i++) {
4177 printf("%s\n", data_dir[i]);
4178 }
4179 exit(0);
4180 }
4181
4182 /* machine_class: default to UP */
4183 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4184 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4185 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4186
4187 /* default to machine_class->default_cpus */
4188 smp_cpus = machine_class->default_cpus;
4189 max_cpus = machine_class->default_cpus;
4190
4191 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4192
4193 /* sanity-check smp_cpus and max_cpus against machine_class */
4194 if (smp_cpus < machine_class->min_cpus) {
4195 error_report("Invalid SMP CPUs %d. The min CPUs "
4196 "supported by machine '%s' is %d", smp_cpus,
4197 machine_class->name, machine_class->min_cpus);
4198 exit(1);
4199 }
4200 if (max_cpus > machine_class->max_cpus) {
4201 error_report("Invalid SMP CPUs %d. The max CPUs "
4202 "supported by machine '%s' is %d", max_cpus,
4203 machine_class->name, machine_class->max_cpus);
4204 exit(1);
4205 }
4206
4207 /*
4208 * Get the default machine options from the machine if it is not already
4209 * specified either by the configuration file or by the command line.
4210 */
4211 if (machine_class->default_machine_opts) {
4212 qemu_opts_set_defaults(qemu_find_opts("machine"),
4213 machine_class->default_machine_opts, 0);
4214 }
4215
4216 qemu_opts_foreach(qemu_find_opts("device"),
4217 default_driver_check, NULL, NULL);
4218 qemu_opts_foreach(qemu_find_opts("global"),
4219 default_driver_check, NULL, NULL);
4220
4221 if (!vga_model && !default_vga) {
4222 vga_interface_type = VGA_DEVICE;
4223 }
4224 if (!has_defaults || machine_class->no_serial) {
4225 default_serial = 0;
4226 }
4227 if (!has_defaults || machine_class->no_parallel) {
4228 default_parallel = 0;
4229 }
4230 if (!has_defaults || !machine_class->use_virtcon) {
4231 default_virtcon = 0;
4232 }
4233 if (!has_defaults || !machine_class->use_sclp) {
4234 default_sclp = 0;
4235 }
4236 if (!has_defaults || machine_class->no_floppy) {
4237 default_floppy = 0;
4238 }
4239 if (!has_defaults || machine_class->no_cdrom) {
4240 default_cdrom = 0;
4241 }
4242 if (!has_defaults || machine_class->no_sdcard) {
4243 default_sdcard = 0;
4244 }
4245 if (!has_defaults) {
4246 default_monitor = 0;
4247 default_net = 0;
4248 default_vga = 0;
4249 }
4250
4251 if (is_daemonized()) {
4252 /* According to documentation and historically, -nographic redirects
4253 * serial port, parallel port and monitor to stdio, which does not work
4254 * with -daemonize. We can redirect these to null instead, but since
4255 * -nographic is legacy, let's just error out.
4256 * We disallow -nographic only if all other ports are not redirected
4257 * explicitly, to not break existing legacy setups which uses
4258 * -nographic _and_ redirects all ports explicitly - this is valid
4259 * usage, -nographic is just a no-op in this case.
4260 */
4261 if (nographic
4262 && (default_parallel || default_serial
4263 || default_monitor || default_virtcon)) {
4264 error_report("-nographic cannot be used with -daemonize");
4265 exit(1);
4266 }
4267 #ifdef CONFIG_CURSES
4268 if (dpy.type == DISPLAY_TYPE_CURSES) {
4269 error_report("curses display cannot be used with -daemonize");
4270 exit(1);
4271 }
4272 #endif
4273 }
4274
4275 if (nographic) {
4276 if (default_parallel)
4277 add_device_config(DEV_PARALLEL, "null");
4278 if (default_serial && default_monitor) {
4279 add_device_config(DEV_SERIAL, "mon:stdio");
4280 } else if (default_virtcon && default_monitor) {
4281 add_device_config(DEV_VIRTCON, "mon:stdio");
4282 } else if (default_sclp && default_monitor) {
4283 add_device_config(DEV_SCLP, "mon:stdio");
4284 } else {
4285 if (default_serial)
4286 add_device_config(DEV_SERIAL, "stdio");
4287 if (default_virtcon)
4288 add_device_config(DEV_VIRTCON, "stdio");
4289 if (default_sclp) {
4290 add_device_config(DEV_SCLP, "stdio");
4291 }
4292 if (default_monitor)
4293 monitor_parse("stdio", "readline", false);
4294 }
4295 } else {
4296 if (default_serial)
4297 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4298 if (default_parallel)
4299 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4300 if (default_monitor)
4301 monitor_parse("vc:80Cx24C", "readline", false);
4302 if (default_virtcon)
4303 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4304 if (default_sclp) {
4305 add_device_config(DEV_SCLP, "vc:80Cx24C");
4306 }
4307 }
4308
4309 #if defined(CONFIG_VNC)
4310 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4311 display_remote++;
4312 }
4313 #endif
4314 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4315 if (!qemu_display_find_default(&dpy)) {
4316 dpy.type = DISPLAY_TYPE_NONE;
4317 #if defined(CONFIG_VNC)
4318 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4319 #endif
4320 }
4321 }
4322 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4323 dpy.type = DISPLAY_TYPE_NONE;
4324 }
4325
4326 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4327 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4328 "for SDL, ignoring option");
4329 }
4330 if (dpy.has_window_close &&
4331 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4332 error_report("-no-quit is only valid for GTK and SDL, "
4333 "ignoring option");
4334 }
4335
4336 qemu_display_early_init(&dpy);
4337 qemu_console_early_init();
4338
4339 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4340 #if defined(CONFIG_OPENGL)
4341 error_report("OpenGL is not supported by the display");
4342 #else
4343 error_report("OpenGL support is disabled");
4344 #endif
4345 exit(1);
4346 }
4347
4348 page_size_init();
4349 socket_init();
4350
4351 if (qemu_opts_foreach(qemu_find_opts("object"),
4352 user_creatable_add_opts_foreach,
4353 object_create_initial, NULL)) {
4354 exit(1);
4355 }
4356
4357 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4358 chardev_init_func, NULL, NULL)) {
4359 exit(1);
4360 }
4361
4362 #ifdef CONFIG_VIRTFS
4363 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4364 fsdev_init_func, NULL, NULL)) {
4365 exit(1);
4366 }
4367 #endif
4368
4369 if (qemu_opts_foreach(qemu_find_opts("device"),
4370 device_help_func, NULL, NULL)) {
4371 exit(0);
4372 }
4373
4374 machine_opts = qemu_get_machine_opts();
4375 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4376 NULL)) {
4377 object_unref(OBJECT(current_machine));
4378 exit(1);
4379 }
4380
4381 configure_accelerator(current_machine);
4382
4383 /*
4384 * Register all the global properties, including accel properties,
4385 * machine properties, and user-specified ones.
4386 */
4387 register_global_properties(current_machine);
4388
4389 /*
4390 * Migration object can only be created after global properties
4391 * are applied correctly.
4392 */
4393 migration_object_init();
4394
4395 if (qtest_chrdev) {
4396 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4397 }
4398
4399 machine_opts = qemu_get_machine_opts();
4400 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4401 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4402 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4403 bios_name = qemu_opt_get(machine_opts, "firmware");
4404
4405 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4406 if (opts) {
4407 boot_order = qemu_opt_get(opts, "order");
4408 if (boot_order) {
4409 validate_bootdevices(boot_order, &error_fatal);
4410 }
4411
4412 boot_once = qemu_opt_get(opts, "once");
4413 if (boot_once) {
4414 validate_bootdevices(boot_once, &error_fatal);
4415 }
4416
4417 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4418 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4419 }
4420
4421 if (!boot_order) {
4422 boot_order = machine_class->default_boot_order;
4423 }
4424
4425 if (!kernel_cmdline) {
4426 kernel_cmdline = "";
4427 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4428 }
4429
4430 linux_boot = (kernel_filename != NULL);
4431
4432 if (!linux_boot && *kernel_cmdline != '\0') {
4433 error_report("-append only allowed with -kernel option");
4434 exit(1);
4435 }
4436
4437 if (!linux_boot && initrd_filename != NULL) {
4438 error_report("-initrd only allowed with -kernel option");
4439 exit(1);
4440 }
4441
4442 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4443 /* fall back to the -kernel/-append */
4444 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4445 }
4446
4447 os_set_line_buffering();
4448
4449 /* spice needs the timers to be initialized by this point */
4450 qemu_spice_init();
4451
4452 cpu_ticks_init();
4453 if (icount_opts) {
4454 if (!tcg_enabled()) {
4455 error_report("-icount is not allowed with hardware virtualization");
4456 exit(1);
4457 }
4458 configure_icount(icount_opts, &error_abort);
4459 qemu_opts_del(icount_opts);
4460 }
4461
4462 if (tcg_enabled()) {
4463 qemu_tcg_configure(accel_opts, &error_fatal);
4464 }
4465
4466 if (default_net) {
4467 QemuOptsList *net = qemu_find_opts("net");
4468 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4469 #ifdef CONFIG_SLIRP
4470 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4471 #endif
4472 }
4473
4474 colo_info_init();
4475
4476 if (net_init_clients(&err) < 0) {
4477 error_report_err(err);
4478 exit(1);
4479 }
4480
4481 if (qemu_opts_foreach(qemu_find_opts("object"),
4482 user_creatable_add_opts_foreach,
4483 object_create_delayed, NULL)) {
4484 exit(1);
4485 }
4486
4487 if (tpm_init() < 0) {
4488 exit(1);
4489 }
4490
4491 /* init the bluetooth world */
4492 if (foreach_device_config(DEV_BT, bt_parse))
4493 exit(1);
4494
4495 if (!xen_enabled()) {
4496 /* On 32-bit hosts, QEMU is limited by virtual address space */
4497 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4498 error_report("at most 2047 MB RAM can be simulated");
4499 exit(1);
4500 }
4501 }
4502
4503 blk_mig_init();
4504 ram_mig_init();
4505 dirty_bitmap_mig_init();
4506
4507 /* If the currently selected machine wishes to override the units-per-bus
4508 * property of its default HBA interface type, do so now. */
4509 if (machine_class->units_per_default_bus) {
4510 override_max_devs(machine_class->block_default_type,
4511 machine_class->units_per_default_bus);
4512 }
4513
4514 /* open the virtual block devices */
4515 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4516 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4517
4518 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4519 loc_push_restore(&bdo->loc);
4520 qmp_blockdev_add(bdo->bdo, &error_fatal);
4521 loc_pop(&bdo->loc);
4522 qapi_free_BlockdevOptions(bdo->bdo);
4523 g_free(bdo);
4524 }
4525 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4526 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4527 NULL, NULL);
4528 }
4529 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4530 &machine_class->block_default_type, NULL)) {
4531 exit(1);
4532 }
4533
4534 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4535 CDROM_OPTS);
4536 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4537 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4538
4539 /*
4540 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4541 * depends on configure_accelerator() above.
4542 */
4543 monitor_init_globals();
4544
4545 if (qemu_opts_foreach(qemu_find_opts("mon"),
4546 mon_init_func, NULL, NULL)) {
4547 exit(1);
4548 }
4549
4550 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4551 exit(1);
4552 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4553 exit(1);
4554 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4555 exit(1);
4556 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4557 exit(1);
4558 }
4559 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4560 exit(1);
4561
4562 /* If no default VGA is requested, the default is "none". */
4563 if (default_vga) {
4564 if (machine_class->default_display) {
4565 vga_model = machine_class->default_display;
4566 } else if (vga_interface_available(VGA_CIRRUS)) {
4567 vga_model = "cirrus";
4568 } else if (vga_interface_available(VGA_STD)) {
4569 vga_model = "std";
4570 }
4571 }
4572 if (vga_model) {
4573 select_vgahw(vga_model);
4574 }
4575
4576 if (watchdog) {
4577 i = select_watchdog(watchdog);
4578 if (i > 0)
4579 exit (i == 1 ? 1 : 0);
4580 }
4581
4582 /* This checkpoint is required by replay to separate prior clock
4583 reading from the other reads, because timer polling functions query
4584 clock values from the log. */
4585 replay_checkpoint(CHECKPOINT_INIT);
4586 qdev_machine_init();
4587
4588 current_machine->ram_size = ram_size;
4589 current_machine->maxram_size = maxram_size;
4590 current_machine->ram_slots = ram_slots;
4591 current_machine->boot_order = boot_order;
4592 current_machine->cpu_model = cpu_model;
4593
4594 /* parse features once if machine provides default cpu_type */
4595 if (machine_class->default_cpu_type) {
4596 current_machine->cpu_type = machine_class->default_cpu_type;
4597 if (cpu_model) {
4598 current_machine->cpu_type =
4599 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4600 }
4601 }
4602 parse_numa_opts(current_machine);
4603
4604 machine_run_board_init(current_machine);
4605
4606 realtime_init();
4607
4608 soundhw_init();
4609
4610 if (hax_enabled()) {
4611 hax_sync_vcpus();
4612 }
4613
4614 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4615 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4616 exit(1);
4617 }
4618
4619 /* init USB devices */
4620 if (machine_usb(current_machine)) {
4621 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4622 exit(1);
4623 }
4624
4625 /* Check if IGD GFX passthrough. */
4626 igd_gfx_passthru();
4627
4628 /* init generic devices */
4629 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4630 if (qemu_opts_foreach(qemu_find_opts("device"),
4631 device_init_func, NULL, NULL)) {
4632 exit(1);
4633 }
4634
4635 cpu_synchronize_all_post_init();
4636
4637 rom_reset_order_override();
4638
4639 /* Did we create any drives that we failed to create a device for? */
4640 drive_check_orphaned();
4641
4642 /* Don't warn about the default network setup that you get if
4643 * no command line -net or -netdev options are specified. There
4644 * are two cases that we would otherwise complain about:
4645 * (1) board doesn't support a NIC but the implicit "-net nic"
4646 * requested one
4647 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4648 * sets up a nic that isn't connected to anything.
4649 */
4650 if (!default_net) {
4651 net_check_clients();
4652 }
4653
4654
4655 if (boot_once) {
4656 qemu_boot_set(boot_once, &error_fatal);
4657 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4658 }
4659
4660 /* init local displays */
4661 ds = init_displaystate();
4662 qemu_display_init(ds, &dpy);
4663
4664 /* must be after terminal init, SDL library changes signal handlers */
4665 os_setup_signal_handling();
4666
4667 /* init remote displays */
4668 #ifdef CONFIG_VNC
4669 qemu_opts_foreach(qemu_find_opts("vnc"),
4670 vnc_init_func, NULL, NULL);
4671 #endif
4672
4673 if (using_spice) {
4674 qemu_spice_display_init();
4675 }
4676
4677 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4678 exit(1);
4679 }
4680
4681 qdev_machine_creation_done();
4682
4683 /* TODO: once all bus devices are qdevified, this should be done
4684 * when bus is created by qdev.c */
4685 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4686 qemu_run_machine_init_done_notifiers();
4687
4688 if (rom_check_and_register_reset() != 0) {
4689 error_report("rom check and register reset failed");
4690 exit(1);
4691 }
4692
4693 replay_start();
4694
4695 /* This checkpoint is required by replay to separate prior clock
4696 reading from the other reads, because timer polling functions query
4697 clock values from the log. */
4698 replay_checkpoint(CHECKPOINT_RESET);
4699 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4700 register_global_state();
4701 if (replay_mode != REPLAY_MODE_NONE) {
4702 replay_vmstate_init();
4703 } else if (loadvm) {
4704 Error *local_err = NULL;
4705 if (load_snapshot(loadvm, &local_err) < 0) {
4706 error_report_err(local_err);
4707 autostart = 0;
4708 }
4709 }
4710
4711 qdev_prop_check_globals();
4712 if (vmstate_dump_file) {
4713 /* dump and exit */
4714 dump_vmstate_json_to_file(vmstate_dump_file);
4715 return 0;
4716 }
4717
4718 if (incoming) {
4719 Error *local_err = NULL;
4720 qemu_start_incoming_migration(incoming, &local_err);
4721 if (local_err) {
4722 error_reportf_err(local_err, "-incoming %s: ", incoming);
4723 exit(1);
4724 }
4725 } else if (autostart) {
4726 vm_start();
4727 }
4728
4729 os_setup_post();
4730
4731 main_loop();
4732
4733 /* No more vcpu or device emulation activity beyond this point */
4734 vm_shutdown();
4735
4736 bdrv_close_all();
4737
4738 res_free();
4739
4740 /* vhost-user must be cleaned up before chardevs. */
4741 tpm_cleanup();
4742 net_cleanup();
4743 audio_cleanup();
4744 monitor_cleanup();
4745 qemu_chr_cleanup();
4746 user_creatable_cleanup();
4747 migration_object_finalize();
4748 /* TODO: unref root container, check all devices are ok */
4749
4750 return 0;
4751 }
QEmu