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tpm: convert tpm_crb.c to use trace-events
[mirror_qemu.git] / vl.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
31
32 #ifdef CONFIG_SECCOMP
33 #include <sys/prctl.h>
34 #include "sysemu/seccomp.h"
35 #endif
36
37 #ifdef CONFIG_SDL
38 #if defined(__APPLE__) || defined(main)
39 #include <SDL.h>
40 int qemu_main(int argc, char **argv, char **envp);
41 int main(int argc, char **argv)
42 {
43 return qemu_main(argc, argv, NULL);
44 }
45 #undef main
46 #define main qemu_main
47 #endif
48 #endif /* CONFIG_SDL */
49
50 #ifdef CONFIG_COCOA
51 #undef main
52 #define main qemu_main
53 #endif /* CONFIG_COCOA */
54
55
56 #include "qemu/error-report.h"
57 #include "qemu/sockets.h"
58 #include "hw/hw.h"
59 #include "hw/boards.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "hw/bt.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/smbios/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
70 #include "hw/qdev.h"
71 #include "hw/loader.h"
72 #include "monitor/qdev.h"
73 #include "sysemu/bt.h"
74 #include "net/net.h"
75 #include "net/slirp.h"
76 #include "monitor/monitor.h"
77 #include "ui/console.h"
78 #include "ui/input.h"
79 #include "sysemu/sysemu.h"
80 #include "sysemu/numa.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "chardev/char.h"
84 #include "qemu/bitmap.h"
85 #include "qemu/log.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/misc.h"
89 #include "migration/snapshot.h"
90 #include "migration/global_state.h"
91 #include "sysemu/tpm.h"
92 #include "sysemu/dma.h"
93 #include "hw/audio/soundhw.h"
94 #include "audio/audio.h"
95 #include "sysemu/cpus.h"
96 #include "migration/colo.h"
97 #include "sysemu/kvm.h"
98 #include "sysemu/hax.h"
99 #include "qapi/qobject-input-visitor.h"
100 #include "qapi-visit.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qmp-commands.h"
105 #include "qemu/main-loop.h"
106 #ifdef CONFIG_VIRTFS
107 #include "fsdev/qemu-fsdev.h"
108 #endif
109 #include "sysemu/qtest.h"
110
111 #include "disas/disas.h"
112
113
114 #include "slirp/libslirp.h"
115
116 #include "trace-root.h"
117 #include "trace/control.h"
118 #include "qemu/queue.h"
119 #include "sysemu/arch_init.h"
120
121 #include "ui/qemu-spice.h"
122 #include "qapi/string-input-visitor.h"
123 #include "qapi/opts-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "qapi-event.h"
126 #include "exec/semihost.h"
127 #include "crypto/init.h"
128 #include "sysemu/replay.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133 #define MAX_SCLP_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int display_opengl;
140 const char* keyboard_layout = NULL;
141 ram_addr_t ram_size;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 int nb_nics;
146 NICInfo nd_table[MAX_NICS];
147 int autostart;
148 static int rtc_utc = 1;
149 static int rtc_date_offset = -1; /* -1 means no change */
150 QEMUClockType rtc_clock;
151 int vga_interface_type = VGA_NONE;
152 static DisplayOptions dpy;
153 int no_frame;
154 Chardev *serial_hds[MAX_SERIAL_PORTS];
155 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
156 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
157 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
158 int win2k_install_hack = 0;
159 int singlestep = 0;
160 int smp_cpus;
161 unsigned int max_cpus;
162 int smp_cores = 1;
163 int smp_threads = 1;
164 int acpi_enabled = 1;
165 int no_hpet = 0;
166 int fd_bootchk = 1;
167 static int no_reboot;
168 int no_shutdown = 0;
169 int cursor_hide = 1;
170 int graphic_rotate = 0;
171 const char *watchdog;
172 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
173 int nb_option_roms;
174 int old_param = 0;
175 const char *qemu_name;
176 int alt_grab = 0;
177 int ctrl_grab = 0;
178 unsigned int nb_prom_envs = 0;
179 const char *prom_envs[MAX_PROM_ENVS];
180 int boot_menu;
181 bool boot_strict;
182 uint8_t *boot_splash_filedata;
183 size_t boot_splash_filedata_size;
184 uint8_t qemu_extra_params_fw[2];
185
186 int icount_align_option;
187
188 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
189 * little-endian "wire format" described in the SMBIOS 2.6 specification.
190 */
191 QemuUUID qemu_uuid;
192 bool qemu_uuid_set;
193
194 static NotifierList exit_notifiers =
195 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
196
197 static NotifierList machine_init_done_notifiers =
198 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
199
200 bool xen_allowed;
201 uint32_t xen_domid;
202 enum xen_mode xen_mode = XEN_EMULATE;
203 bool xen_domid_restrict;
204
205 static int has_defaults = 1;
206 static int default_serial = 1;
207 static int default_parallel = 1;
208 static int default_virtcon = 1;
209 static int default_sclp = 1;
210 static int default_monitor = 1;
211 static int default_floppy = 1;
212 static int default_cdrom = 1;
213 static int default_sdcard = 1;
214 static int default_vga = 1;
215 static int default_net = 1;
216
217 static struct {
218 const char *driver;
219 int *flag;
220 } default_list[] = {
221 { .driver = "isa-serial", .flag = &default_serial },
222 { .driver = "isa-parallel", .flag = &default_parallel },
223 { .driver = "isa-fdc", .flag = &default_floppy },
224 { .driver = "floppy", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .flag = &default_cdrom },
229 { .driver = "scsi-hd", .flag = &default_cdrom },
230 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
231 { .driver = "virtio-serial", .flag = &default_virtcon },
232 { .driver = "VGA", .flag = &default_vga },
233 { .driver = "isa-vga", .flag = &default_vga },
234 { .driver = "cirrus-vga", .flag = &default_vga },
235 { .driver = "isa-cirrus-vga", .flag = &default_vga },
236 { .driver = "vmware-svga", .flag = &default_vga },
237 { .driver = "qxl-vga", .flag = &default_vga },
238 { .driver = "virtio-vga", .flag = &default_vga },
239 };
240
241 static QemuOptsList qemu_rtc_opts = {
242 .name = "rtc",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
244 .desc = {
245 {
246 .name = "base",
247 .type = QEMU_OPT_STRING,
248 },{
249 .name = "clock",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "driftfix",
253 .type = QEMU_OPT_STRING,
254 },
255 { /* end of list */ }
256 },
257 };
258
259 static QemuOptsList qemu_sandbox_opts = {
260 .name = "sandbox",
261 .implied_opt_name = "enable",
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
263 .desc = {
264 {
265 .name = "enable",
266 .type = QEMU_OPT_BOOL,
267 },
268 {
269 .name = "obsolete",
270 .type = QEMU_OPT_STRING,
271 },
272 {
273 .name = "elevateprivileges",
274 .type = QEMU_OPT_STRING,
275 },
276 {
277 .name = "spawn",
278 .type = QEMU_OPT_STRING,
279 },
280 {
281 .name = "resourcecontrol",
282 .type = QEMU_OPT_STRING,
283 },
284 { /* end of list */ }
285 },
286 };
287
288 static QemuOptsList qemu_option_rom_opts = {
289 .name = "option-rom",
290 .implied_opt_name = "romfile",
291 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
292 .desc = {
293 {
294 .name = "bootindex",
295 .type = QEMU_OPT_NUMBER,
296 }, {
297 .name = "romfile",
298 .type = QEMU_OPT_STRING,
299 },
300 { /* end of list */ }
301 },
302 };
303
304 static QemuOptsList qemu_machine_opts = {
305 .name = "machine",
306 .implied_opt_name = "type",
307 .merge_lists = true,
308 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
309 .desc = {
310 /*
311 * no elements => accept any
312 * sanity checking will happen later
313 * when setting machine properties
314 */
315 { }
316 },
317 };
318
319 static QemuOptsList qemu_accel_opts = {
320 .name = "accel",
321 .implied_opt_name = "accel",
322 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
323 .merge_lists = true,
324 .desc = {
325 {
326 .name = "accel",
327 .type = QEMU_OPT_STRING,
328 .help = "Select the type of accelerator",
329 },
330 {
331 .name = "thread",
332 .type = QEMU_OPT_STRING,
333 .help = "Enable/disable multi-threaded TCG",
334 },
335 { /* end of list */ }
336 },
337 };
338
339 static QemuOptsList qemu_boot_opts = {
340 .name = "boot-opts",
341 .implied_opt_name = "order",
342 .merge_lists = true,
343 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
344 .desc = {
345 {
346 .name = "order",
347 .type = QEMU_OPT_STRING,
348 }, {
349 .name = "once",
350 .type = QEMU_OPT_STRING,
351 }, {
352 .name = "menu",
353 .type = QEMU_OPT_BOOL,
354 }, {
355 .name = "splash",
356 .type = QEMU_OPT_STRING,
357 }, {
358 .name = "splash-time",
359 .type = QEMU_OPT_STRING,
360 }, {
361 .name = "reboot-timeout",
362 .type = QEMU_OPT_STRING,
363 }, {
364 .name = "strict",
365 .type = QEMU_OPT_BOOL,
366 },
367 { /*End of list */ }
368 },
369 };
370
371 static QemuOptsList qemu_add_fd_opts = {
372 .name = "add-fd",
373 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
374 .desc = {
375 {
376 .name = "fd",
377 .type = QEMU_OPT_NUMBER,
378 .help = "file descriptor of which a duplicate is added to fd set",
379 },{
380 .name = "set",
381 .type = QEMU_OPT_NUMBER,
382 .help = "ID of the fd set to add fd to",
383 },{
384 .name = "opaque",
385 .type = QEMU_OPT_STRING,
386 .help = "free-form string used to describe fd",
387 },
388 { /* end of list */ }
389 },
390 };
391
392 static QemuOptsList qemu_object_opts = {
393 .name = "object",
394 .implied_opt_name = "qom-type",
395 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
396 .desc = {
397 { }
398 },
399 };
400
401 static QemuOptsList qemu_tpmdev_opts = {
402 .name = "tpmdev",
403 .implied_opt_name = "type",
404 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
405 .desc = {
406 /* options are defined in the TPM backends */
407 { /* end of list */ }
408 },
409 };
410
411 static QemuOptsList qemu_realtime_opts = {
412 .name = "realtime",
413 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
414 .desc = {
415 {
416 .name = "mlock",
417 .type = QEMU_OPT_BOOL,
418 },
419 { /* end of list */ }
420 },
421 };
422
423 static QemuOptsList qemu_msg_opts = {
424 .name = "msg",
425 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
426 .desc = {
427 {
428 .name = "timestamp",
429 .type = QEMU_OPT_BOOL,
430 },
431 { /* end of list */ }
432 },
433 };
434
435 static QemuOptsList qemu_name_opts = {
436 .name = "name",
437 .implied_opt_name = "guest",
438 .merge_lists = true,
439 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
440 .desc = {
441 {
442 .name = "guest",
443 .type = QEMU_OPT_STRING,
444 .help = "Sets the name of the guest.\n"
445 "This name will be displayed in the SDL window caption.\n"
446 "The name will also be used for the VNC server",
447 }, {
448 .name = "process",
449 .type = QEMU_OPT_STRING,
450 .help = "Sets the name of the QEMU process, as shown in top etc",
451 }, {
452 .name = "debug-threads",
453 .type = QEMU_OPT_BOOL,
454 .help = "When enabled, name the individual threads; defaults off.\n"
455 "NOTE: The thread names are for debugging and not a\n"
456 "stable API.",
457 },
458 { /* End of list */ }
459 },
460 };
461
462 static QemuOptsList qemu_mem_opts = {
463 .name = "memory",
464 .implied_opt_name = "size",
465 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
466 .merge_lists = true,
467 .desc = {
468 {
469 .name = "size",
470 .type = QEMU_OPT_SIZE,
471 },
472 {
473 .name = "slots",
474 .type = QEMU_OPT_NUMBER,
475 },
476 {
477 .name = "maxmem",
478 .type = QEMU_OPT_SIZE,
479 },
480 { /* end of list */ }
481 },
482 };
483
484 static QemuOptsList qemu_icount_opts = {
485 .name = "icount",
486 .implied_opt_name = "shift",
487 .merge_lists = true,
488 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
489 .desc = {
490 {
491 .name = "shift",
492 .type = QEMU_OPT_STRING,
493 }, {
494 .name = "align",
495 .type = QEMU_OPT_BOOL,
496 }, {
497 .name = "sleep",
498 .type = QEMU_OPT_BOOL,
499 }, {
500 .name = "rr",
501 .type = QEMU_OPT_STRING,
502 }, {
503 .name = "rrfile",
504 .type = QEMU_OPT_STRING,
505 }, {
506 .name = "rrsnapshot",
507 .type = QEMU_OPT_STRING,
508 },
509 { /* end of list */ }
510 },
511 };
512
513 static QemuOptsList qemu_semihosting_config_opts = {
514 .name = "semihosting-config",
515 .implied_opt_name = "enable",
516 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
517 .desc = {
518 {
519 .name = "enable",
520 .type = QEMU_OPT_BOOL,
521 }, {
522 .name = "target",
523 .type = QEMU_OPT_STRING,
524 }, {
525 .name = "arg",
526 .type = QEMU_OPT_STRING,
527 },
528 { /* end of list */ }
529 },
530 };
531
532 static QemuOptsList qemu_fw_cfg_opts = {
533 .name = "fw_cfg",
534 .implied_opt_name = "name",
535 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
536 .desc = {
537 {
538 .name = "name",
539 .type = QEMU_OPT_STRING,
540 .help = "Sets the fw_cfg name of the blob to be inserted",
541 }, {
542 .name = "file",
543 .type = QEMU_OPT_STRING,
544 .help = "Sets the name of the file from which\n"
545 "the fw_cfg blob will be loaded",
546 }, {
547 .name = "string",
548 .type = QEMU_OPT_STRING,
549 .help = "Sets content of the blob to be inserted from a string",
550 },
551 { /* end of list */ }
552 },
553 };
554
555 /**
556 * Get machine options
557 *
558 * Returns: machine options (never null).
559 */
560 QemuOpts *qemu_get_machine_opts(void)
561 {
562 return qemu_find_opts_singleton("machine");
563 }
564
565 const char *qemu_get_vm_name(void)
566 {
567 return qemu_name;
568 }
569
570 static void res_free(void)
571 {
572 g_free(boot_splash_filedata);
573 boot_splash_filedata = NULL;
574 }
575
576 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
577 {
578 const char *driver = qemu_opt_get(opts, "driver");
579 int i;
580
581 if (!driver)
582 return 0;
583 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
584 if (strcmp(default_list[i].driver, driver) != 0)
585 continue;
586 *(default_list[i].flag) = 0;
587 }
588 return 0;
589 }
590
591 /***********************************************************/
592 /* QEMU state */
593
594 static RunState current_run_state = RUN_STATE_PRELAUNCH;
595
596 /* We use RUN_STATE__MAX but any invalid value will do */
597 static RunState vmstop_requested = RUN_STATE__MAX;
598 static QemuMutex vmstop_lock;
599
600 typedef struct {
601 RunState from;
602 RunState to;
603 } RunStateTransition;
604
605 static const RunStateTransition runstate_transitions_def[] = {
606 /* from -> to */
607 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
608 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
609 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
610
611 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
612 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
613 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
615 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
616 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
617 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
618 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
619 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
621 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
622 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
623
624 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
625 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
626 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
627
628 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
629 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
630 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
631
632 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
633 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
635 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
636 { RUN_STATE_PAUSED, RUN_STATE_COLO},
637
638 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
639 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
640 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
641
642 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
643 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
645
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
648 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
651
652 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
653 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
654
655 { RUN_STATE_COLO, RUN_STATE_RUNNING },
656
657 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
658 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
659 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
660 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
661 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
662 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
663 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
664 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
665 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
666 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
667 { RUN_STATE_RUNNING, RUN_STATE_COLO},
668
669 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
670
671 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
672 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
673 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
674
675 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
676 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
677 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
678 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
679 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
680 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
681
682 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
683 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
684 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
685 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
686
687 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
688 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
689 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
690
691 { RUN_STATE__MAX, RUN_STATE__MAX },
692 };
693
694 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
695
696 bool runstate_check(RunState state)
697 {
698 return current_run_state == state;
699 }
700
701 bool runstate_store(char *str, size_t size)
702 {
703 const char *state = RunState_str(current_run_state);
704 size_t len = strlen(state) + 1;
705
706 if (len > size) {
707 return false;
708 }
709 memcpy(str, state, len);
710 return true;
711 }
712
713 static void runstate_init(void)
714 {
715 const RunStateTransition *p;
716
717 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
718 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
719 runstate_valid_transitions[p->from][p->to] = true;
720 }
721
722 qemu_mutex_init(&vmstop_lock);
723 }
724
725 /* This function will abort() on invalid state transitions */
726 void runstate_set(RunState new_state)
727 {
728 assert(new_state < RUN_STATE__MAX);
729
730 if (current_run_state == new_state) {
731 return;
732 }
733
734 if (!runstate_valid_transitions[current_run_state][new_state]) {
735 error_report("invalid runstate transition: '%s' -> '%s'",
736 RunState_str(current_run_state),
737 RunState_str(new_state));
738 abort();
739 }
740 trace_runstate_set(new_state);
741 current_run_state = new_state;
742 }
743
744 int runstate_is_running(void)
745 {
746 return runstate_check(RUN_STATE_RUNNING);
747 }
748
749 bool runstate_needs_reset(void)
750 {
751 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
752 runstate_check(RUN_STATE_SHUTDOWN);
753 }
754
755 StatusInfo *qmp_query_status(Error **errp)
756 {
757 StatusInfo *info = g_malloc0(sizeof(*info));
758
759 info->running = runstate_is_running();
760 info->singlestep = singlestep;
761 info->status = current_run_state;
762
763 return info;
764 }
765
766 bool qemu_vmstop_requested(RunState *r)
767 {
768 qemu_mutex_lock(&vmstop_lock);
769 *r = vmstop_requested;
770 vmstop_requested = RUN_STATE__MAX;
771 qemu_mutex_unlock(&vmstop_lock);
772 return *r < RUN_STATE__MAX;
773 }
774
775 void qemu_system_vmstop_request_prepare(void)
776 {
777 qemu_mutex_lock(&vmstop_lock);
778 }
779
780 void qemu_system_vmstop_request(RunState state)
781 {
782 vmstop_requested = state;
783 qemu_mutex_unlock(&vmstop_lock);
784 qemu_notify_event();
785 }
786
787 /***********************************************************/
788 /* real time host monotonic timer */
789
790 static time_t qemu_time(void)
791 {
792 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
793 }
794
795 /***********************************************************/
796 /* host time/date access */
797 void qemu_get_timedate(struct tm *tm, int offset)
798 {
799 time_t ti = qemu_time();
800
801 ti += offset;
802 if (rtc_date_offset == -1) {
803 if (rtc_utc)
804 gmtime_r(&ti, tm);
805 else
806 localtime_r(&ti, tm);
807 } else {
808 ti -= rtc_date_offset;
809 gmtime_r(&ti, tm);
810 }
811 }
812
813 int qemu_timedate_diff(struct tm *tm)
814 {
815 time_t seconds;
816
817 if (rtc_date_offset == -1)
818 if (rtc_utc)
819 seconds = mktimegm(tm);
820 else {
821 struct tm tmp = *tm;
822 tmp.tm_isdst = -1; /* use timezone to figure it out */
823 seconds = mktime(&tmp);
824 }
825 else
826 seconds = mktimegm(tm) + rtc_date_offset;
827
828 return seconds - qemu_time();
829 }
830
831 static void configure_rtc_date_offset(const char *startdate, int legacy)
832 {
833 time_t rtc_start_date;
834 struct tm tm;
835
836 if (!strcmp(startdate, "now") && legacy) {
837 rtc_date_offset = -1;
838 } else {
839 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
840 &tm.tm_year,
841 &tm.tm_mon,
842 &tm.tm_mday,
843 &tm.tm_hour,
844 &tm.tm_min,
845 &tm.tm_sec) == 6) {
846 /* OK */
847 } else if (sscanf(startdate, "%d-%d-%d",
848 &tm.tm_year,
849 &tm.tm_mon,
850 &tm.tm_mday) == 3) {
851 tm.tm_hour = 0;
852 tm.tm_min = 0;
853 tm.tm_sec = 0;
854 } else {
855 goto date_fail;
856 }
857 tm.tm_year -= 1900;
858 tm.tm_mon--;
859 rtc_start_date = mktimegm(&tm);
860 if (rtc_start_date == -1) {
861 date_fail:
862 error_report("invalid date format");
863 error_printf("valid formats: "
864 "'2006-06-17T16:01:21' or '2006-06-17'\n");
865 exit(1);
866 }
867 rtc_date_offset = qemu_time() - rtc_start_date;
868 }
869 }
870
871 static void configure_rtc(QemuOpts *opts)
872 {
873 const char *value;
874
875 value = qemu_opt_get(opts, "base");
876 if (value) {
877 if (!strcmp(value, "utc")) {
878 rtc_utc = 1;
879 } else if (!strcmp(value, "localtime")) {
880 Error *blocker = NULL;
881 rtc_utc = 0;
882 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
883 "-rtc base=localtime");
884 replay_add_blocker(blocker);
885 } else {
886 configure_rtc_date_offset(value, 0);
887 }
888 }
889 value = qemu_opt_get(opts, "clock");
890 if (value) {
891 if (!strcmp(value, "host")) {
892 rtc_clock = QEMU_CLOCK_HOST;
893 } else if (!strcmp(value, "rt")) {
894 rtc_clock = QEMU_CLOCK_REALTIME;
895 } else if (!strcmp(value, "vm")) {
896 rtc_clock = QEMU_CLOCK_VIRTUAL;
897 } else {
898 error_report("invalid option value '%s'", value);
899 exit(1);
900 }
901 }
902 value = qemu_opt_get(opts, "driftfix");
903 if (value) {
904 if (!strcmp(value, "slew")) {
905 static GlobalProperty slew_lost_ticks = {
906 .driver = "mc146818rtc",
907 .property = "lost_tick_policy",
908 .value = "slew",
909 };
910
911 qdev_prop_register_global(&slew_lost_ticks);
912 } else if (!strcmp(value, "none")) {
913 /* discard is default */
914 } else {
915 error_report("invalid option value '%s'", value);
916 exit(1);
917 }
918 }
919 }
920
921 /***********************************************************/
922 /* Bluetooth support */
923 static int nb_hcis;
924 static int cur_hci;
925 static struct HCIInfo *hci_table[MAX_NICS];
926
927 struct HCIInfo *qemu_next_hci(void)
928 {
929 if (cur_hci == nb_hcis)
930 return &null_hci;
931
932 return hci_table[cur_hci++];
933 }
934
935 static int bt_hci_parse(const char *str)
936 {
937 struct HCIInfo *hci;
938 bdaddr_t bdaddr;
939
940 if (nb_hcis >= MAX_NICS) {
941 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
942 return -1;
943 }
944
945 hci = hci_init(str);
946 if (!hci)
947 return -1;
948
949 bdaddr.b[0] = 0x52;
950 bdaddr.b[1] = 0x54;
951 bdaddr.b[2] = 0x00;
952 bdaddr.b[3] = 0x12;
953 bdaddr.b[4] = 0x34;
954 bdaddr.b[5] = 0x56 + nb_hcis;
955 hci->bdaddr_set(hci, bdaddr.b);
956
957 hci_table[nb_hcis++] = hci;
958
959 return 0;
960 }
961
962 static void bt_vhci_add(int vlan_id)
963 {
964 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
965
966 if (!vlan->slave)
967 warn_report("adding a VHCI to an empty scatternet %i",
968 vlan_id);
969
970 bt_vhci_init(bt_new_hci(vlan));
971 }
972
973 static struct bt_device_s *bt_device_add(const char *opt)
974 {
975 struct bt_scatternet_s *vlan;
976 int vlan_id = 0;
977 char *endp = strstr(opt, ",vlan=");
978 int len = (endp ? endp - opt : strlen(opt)) + 1;
979 char devname[10];
980
981 pstrcpy(devname, MIN(sizeof(devname), len), opt);
982
983 if (endp) {
984 vlan_id = strtol(endp + 6, &endp, 0);
985 if (*endp) {
986 error_report("unrecognised bluetooth vlan Id");
987 return 0;
988 }
989 }
990
991 vlan = qemu_find_bt_vlan(vlan_id);
992
993 if (!vlan->slave)
994 warn_report("adding a slave device to an empty scatternet %i",
995 vlan_id);
996
997 if (!strcmp(devname, "keyboard"))
998 return bt_keyboard_init(vlan);
999
1000 error_report("unsupported bluetooth device '%s'", devname);
1001 return 0;
1002 }
1003
1004 static int bt_parse(const char *opt)
1005 {
1006 const char *endp, *p;
1007 int vlan;
1008
1009 if (strstart(opt, "hci", &endp)) {
1010 if (!*endp || *endp == ',') {
1011 if (*endp)
1012 if (!strstart(endp, ",vlan=", 0))
1013 opt = endp + 1;
1014
1015 return bt_hci_parse(opt);
1016 }
1017 } else if (strstart(opt, "vhci", &endp)) {
1018 if (!*endp || *endp == ',') {
1019 if (*endp) {
1020 if (strstart(endp, ",vlan=", &p)) {
1021 vlan = strtol(p, (char **) &endp, 0);
1022 if (*endp) {
1023 error_report("bad scatternet '%s'", p);
1024 return 1;
1025 }
1026 } else {
1027 error_report("bad parameter '%s'", endp + 1);
1028 return 1;
1029 }
1030 } else
1031 vlan = 0;
1032
1033 bt_vhci_add(vlan);
1034 return 0;
1035 }
1036 } else if (strstart(opt, "device:", &endp))
1037 return !bt_device_add(endp);
1038
1039 error_report("bad bluetooth parameter '%s'", opt);
1040 return 1;
1041 }
1042
1043 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1044 {
1045 if (qemu_opt_get_bool(opts, "enable", false)) {
1046 #ifdef CONFIG_SECCOMP
1047 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1048 | QEMU_SECCOMP_SET_OBSOLETE;
1049 const char *value = NULL;
1050
1051 value = qemu_opt_get(opts, "obsolete");
1052 if (value) {
1053 if (g_str_equal(value, "allow")) {
1054 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1055 } else if (g_str_equal(value, "deny")) {
1056 /* this is the default option, this if is here
1057 * to provide a little bit of consistency for
1058 * the command line */
1059 } else {
1060 error_report("invalid argument for obsolete");
1061 return -1;
1062 }
1063 }
1064
1065 value = qemu_opt_get(opts, "elevateprivileges");
1066 if (value) {
1067 if (g_str_equal(value, "deny")) {
1068 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1069 } else if (g_str_equal(value, "children")) {
1070 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1071
1072 /* calling prctl directly because we're
1073 * not sure if host has CAP_SYS_ADMIN set*/
1074 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1075 error_report("failed to set no_new_privs "
1076 "aborting");
1077 return -1;
1078 }
1079 } else if (g_str_equal(value, "allow")) {
1080 /* default value */
1081 } else {
1082 error_report("invalid argument for elevateprivileges");
1083 return -1;
1084 }
1085 }
1086
1087 value = qemu_opt_get(opts, "spawn");
1088 if (value) {
1089 if (g_str_equal(value, "deny")) {
1090 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1091 } else if (g_str_equal(value, "allow")) {
1092 /* default value */
1093 } else {
1094 error_report("invalid argument for spawn");
1095 return -1;
1096 }
1097 }
1098
1099 value = qemu_opt_get(opts, "resourcecontrol");
1100 if (value) {
1101 if (g_str_equal(value, "deny")) {
1102 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1103 } else if (g_str_equal(value, "allow")) {
1104 /* default value */
1105 } else {
1106 error_report("invalid argument for resourcecontrol");
1107 return -1;
1108 }
1109 }
1110
1111 if (seccomp_start(seccomp_opts) < 0) {
1112 error_report("failed to install seccomp syscall filter "
1113 "in the kernel");
1114 return -1;
1115 }
1116 #else
1117 error_report("seccomp support is disabled");
1118 return -1;
1119 #endif
1120 }
1121
1122 return 0;
1123 }
1124
1125 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1126 {
1127 const char *proc_name;
1128
1129 if (qemu_opt_get(opts, "debug-threads")) {
1130 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1131 }
1132 qemu_name = qemu_opt_get(opts, "guest");
1133
1134 proc_name = qemu_opt_get(opts, "process");
1135 if (proc_name) {
1136 os_set_proc_name(proc_name);
1137 }
1138
1139 return 0;
1140 }
1141
1142 bool defaults_enabled(void)
1143 {
1144 return has_defaults;
1145 }
1146
1147 #ifndef _WIN32
1148 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1149 {
1150 int fd, dupfd, flags;
1151 int64_t fdset_id;
1152 const char *fd_opaque = NULL;
1153 AddfdInfo *fdinfo;
1154
1155 fd = qemu_opt_get_number(opts, "fd", -1);
1156 fdset_id = qemu_opt_get_number(opts, "set", -1);
1157 fd_opaque = qemu_opt_get(opts, "opaque");
1158
1159 if (fd < 0) {
1160 error_report("fd option is required and must be non-negative");
1161 return -1;
1162 }
1163
1164 if (fd <= STDERR_FILENO) {
1165 error_report("fd cannot be a standard I/O stream");
1166 return -1;
1167 }
1168
1169 /*
1170 * All fds inherited across exec() necessarily have FD_CLOEXEC
1171 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1172 */
1173 flags = fcntl(fd, F_GETFD);
1174 if (flags == -1 || (flags & FD_CLOEXEC)) {
1175 error_report("fd is not valid or already in use");
1176 return -1;
1177 }
1178
1179 if (fdset_id < 0) {
1180 error_report("set option is required and must be non-negative");
1181 return -1;
1182 }
1183
1184 #ifdef F_DUPFD_CLOEXEC
1185 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1186 #else
1187 dupfd = dup(fd);
1188 if (dupfd != -1) {
1189 qemu_set_cloexec(dupfd);
1190 }
1191 #endif
1192 if (dupfd == -1) {
1193 error_report("error duplicating fd: %s", strerror(errno));
1194 return -1;
1195 }
1196
1197 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1198 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1199 &error_abort);
1200 g_free(fdinfo);
1201
1202 return 0;
1203 }
1204
1205 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1206 {
1207 int fd;
1208
1209 fd = qemu_opt_get_number(opts, "fd", -1);
1210 close(fd);
1211
1212 return 0;
1213 }
1214 #endif
1215
1216 /***********************************************************/
1217 /* QEMU Block devices */
1218
1219 #define HD_OPTS "media=disk"
1220 #define CDROM_OPTS "media=cdrom"
1221 #define FD_OPTS ""
1222 #define PFLASH_OPTS ""
1223 #define MTD_OPTS ""
1224 #define SD_OPTS ""
1225
1226 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1227 {
1228 BlockInterfaceType *block_default_type = opaque;
1229
1230 return drive_new(opts, *block_default_type) == NULL;
1231 }
1232
1233 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1234 {
1235 if (qemu_opt_get(opts, "snapshot") == NULL) {
1236 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1237 }
1238 return 0;
1239 }
1240
1241 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1242 int index, const char *optstr)
1243 {
1244 QemuOpts *opts;
1245 DriveInfo *dinfo;
1246
1247 if (!enable || drive_get_by_index(type, index)) {
1248 return;
1249 }
1250
1251 opts = drive_add(type, index, NULL, optstr);
1252 if (snapshot) {
1253 drive_enable_snapshot(NULL, opts, NULL);
1254 }
1255
1256 dinfo = drive_new(opts, type);
1257 if (!dinfo) {
1258 exit(1);
1259 }
1260 dinfo->is_default = true;
1261
1262 }
1263
1264 static QemuOptsList qemu_smp_opts = {
1265 .name = "smp-opts",
1266 .implied_opt_name = "cpus",
1267 .merge_lists = true,
1268 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1269 .desc = {
1270 {
1271 .name = "cpus",
1272 .type = QEMU_OPT_NUMBER,
1273 }, {
1274 .name = "sockets",
1275 .type = QEMU_OPT_NUMBER,
1276 }, {
1277 .name = "cores",
1278 .type = QEMU_OPT_NUMBER,
1279 }, {
1280 .name = "threads",
1281 .type = QEMU_OPT_NUMBER,
1282 }, {
1283 .name = "maxcpus",
1284 .type = QEMU_OPT_NUMBER,
1285 },
1286 { /*End of list */ }
1287 },
1288 };
1289
1290 static void smp_parse(QemuOpts *opts)
1291 {
1292 if (opts) {
1293 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1294 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1295 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1296 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1297
1298 /* compute missing values, prefer sockets over cores over threads */
1299 if (cpus == 0 || sockets == 0) {
1300 sockets = sockets > 0 ? sockets : 1;
1301 cores = cores > 0 ? cores : 1;
1302 threads = threads > 0 ? threads : 1;
1303 if (cpus == 0) {
1304 cpus = cores * threads * sockets;
1305 }
1306 } else if (cores == 0) {
1307 threads = threads > 0 ? threads : 1;
1308 cores = cpus / (sockets * threads);
1309 cores = cores > 0 ? cores : 1;
1310 } else if (threads == 0) {
1311 threads = cpus / (cores * sockets);
1312 threads = threads > 0 ? threads : 1;
1313 } else if (sockets * cores * threads < cpus) {
1314 error_report("cpu topology: "
1315 "sockets (%u) * cores (%u) * threads (%u) < "
1316 "smp_cpus (%u)",
1317 sockets, cores, threads, cpus);
1318 exit(1);
1319 }
1320
1321 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1322
1323 if (max_cpus < cpus) {
1324 error_report("maxcpus must be equal to or greater than smp");
1325 exit(1);
1326 }
1327
1328 if (sockets * cores * threads > max_cpus) {
1329 error_report("cpu topology: "
1330 "sockets (%u) * cores (%u) * threads (%u) > "
1331 "maxcpus (%u)",
1332 sockets, cores, threads, max_cpus);
1333 exit(1);
1334 }
1335
1336 smp_cpus = cpus;
1337 smp_cores = cores;
1338 smp_threads = threads;
1339 }
1340
1341 if (smp_cpus > 1) {
1342 Error *blocker = NULL;
1343 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1344 replay_add_blocker(blocker);
1345 }
1346 }
1347
1348 static void realtime_init(void)
1349 {
1350 if (enable_mlock) {
1351 if (os_mlock() < 0) {
1352 error_report("locking memory failed");
1353 exit(1);
1354 }
1355 }
1356 }
1357
1358
1359 static void configure_msg(QemuOpts *opts)
1360 {
1361 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1362 }
1363
1364 /***********************************************************/
1365 /* Semihosting */
1366
1367 typedef struct SemihostingConfig {
1368 bool enabled;
1369 SemihostingTarget target;
1370 const char **argv;
1371 int argc;
1372 const char *cmdline; /* concatenated argv */
1373 } SemihostingConfig;
1374
1375 static SemihostingConfig semihosting;
1376
1377 bool semihosting_enabled(void)
1378 {
1379 return semihosting.enabled;
1380 }
1381
1382 SemihostingTarget semihosting_get_target(void)
1383 {
1384 return semihosting.target;
1385 }
1386
1387 const char *semihosting_get_arg(int i)
1388 {
1389 if (i >= semihosting.argc) {
1390 return NULL;
1391 }
1392 return semihosting.argv[i];
1393 }
1394
1395 int semihosting_get_argc(void)
1396 {
1397 return semihosting.argc;
1398 }
1399
1400 const char *semihosting_get_cmdline(void)
1401 {
1402 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1403 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1404 }
1405 return semihosting.cmdline;
1406 }
1407
1408 static int add_semihosting_arg(void *opaque,
1409 const char *name, const char *val,
1410 Error **errp)
1411 {
1412 SemihostingConfig *s = opaque;
1413 if (strcmp(name, "arg") == 0) {
1414 s->argc++;
1415 /* one extra element as g_strjoinv() expects NULL-terminated array */
1416 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1417 s->argv[s->argc - 1] = val;
1418 s->argv[s->argc] = NULL;
1419 }
1420 return 0;
1421 }
1422
1423 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1424 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1425 {
1426 char *cmd_token;
1427
1428 /* argv[0] */
1429 add_semihosting_arg(&semihosting, "arg", file, NULL);
1430
1431 /* split -append and initialize argv[1..n] */
1432 cmd_token = strtok(g_strdup(cmd), " ");
1433 while (cmd_token) {
1434 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1435 cmd_token = strtok(NULL, " ");
1436 }
1437 }
1438
1439 /* Now we still need this for compatibility with XEN. */
1440 bool has_igd_gfx_passthru;
1441 static void igd_gfx_passthru(void)
1442 {
1443 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1444 }
1445
1446 /***********************************************************/
1447 /* USB devices */
1448
1449 static int usb_device_add(const char *devname)
1450 {
1451 USBDevice *dev = NULL;
1452
1453 if (!machine_usb(current_machine)) {
1454 return -1;
1455 }
1456
1457 dev = usbdevice_create(devname);
1458 if (!dev)
1459 return -1;
1460
1461 return 0;
1462 }
1463
1464 static int usb_parse(const char *cmdline)
1465 {
1466 int r;
1467 r = usb_device_add(cmdline);
1468 if (r < 0) {
1469 error_report("could not add USB device '%s'", cmdline);
1470 }
1471 return r;
1472 }
1473
1474 /***********************************************************/
1475 /* machine registration */
1476
1477 MachineState *current_machine;
1478
1479 static MachineClass *find_machine(const char *name)
1480 {
1481 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1482 MachineClass *mc = NULL;
1483
1484 for (el = machines; el; el = el->next) {
1485 MachineClass *temp = el->data;
1486
1487 if (!strcmp(temp->name, name)) {
1488 mc = temp;
1489 break;
1490 }
1491 if (temp->alias &&
1492 !strcmp(temp->alias, name)) {
1493 mc = temp;
1494 break;
1495 }
1496 }
1497
1498 g_slist_free(machines);
1499 return mc;
1500 }
1501
1502 MachineClass *find_default_machine(void)
1503 {
1504 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1505 MachineClass *mc = NULL;
1506
1507 for (el = machines; el; el = el->next) {
1508 MachineClass *temp = el->data;
1509
1510 if (temp->is_default) {
1511 mc = temp;
1512 break;
1513 }
1514 }
1515
1516 g_slist_free(machines);
1517 return mc;
1518 }
1519
1520 MachineInfoList *qmp_query_machines(Error **errp)
1521 {
1522 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1523 MachineInfoList *mach_list = NULL;
1524
1525 for (el = machines; el; el = el->next) {
1526 MachineClass *mc = el->data;
1527 MachineInfoList *entry;
1528 MachineInfo *info;
1529
1530 info = g_malloc0(sizeof(*info));
1531 if (mc->is_default) {
1532 info->has_is_default = true;
1533 info->is_default = true;
1534 }
1535
1536 if (mc->alias) {
1537 info->has_alias = true;
1538 info->alias = g_strdup(mc->alias);
1539 }
1540
1541 info->name = g_strdup(mc->name);
1542 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1543 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1544
1545 entry = g_malloc0(sizeof(*entry));
1546 entry->value = info;
1547 entry->next = mach_list;
1548 mach_list = entry;
1549 }
1550
1551 g_slist_free(machines);
1552 return mach_list;
1553 }
1554
1555 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1556 {
1557 ObjectProperty *prop;
1558 ObjectPropertyIterator iter;
1559
1560 if (!qemu_opt_has_help_opt(opts)) {
1561 return 0;
1562 }
1563
1564 object_property_iter_init(&iter, OBJECT(machine));
1565 while ((prop = object_property_iter_next(&iter))) {
1566 if (!prop->set) {
1567 continue;
1568 }
1569
1570 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1571 prop->name, prop->type);
1572 if (prop->description) {
1573 error_printf(" (%s)\n", prop->description);
1574 } else {
1575 error_printf("\n");
1576 }
1577 }
1578
1579 return 1;
1580 }
1581
1582 /***********************************************************/
1583 /* main execution loop */
1584
1585 struct vm_change_state_entry {
1586 VMChangeStateHandler *cb;
1587 void *opaque;
1588 QLIST_ENTRY (vm_change_state_entry) entries;
1589 };
1590
1591 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1592
1593 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1594 void *opaque)
1595 {
1596 VMChangeStateEntry *e;
1597
1598 e = g_malloc0(sizeof (*e));
1599
1600 e->cb = cb;
1601 e->opaque = opaque;
1602 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1603 return e;
1604 }
1605
1606 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1607 {
1608 QLIST_REMOVE (e, entries);
1609 g_free (e);
1610 }
1611
1612 void vm_state_notify(int running, RunState state)
1613 {
1614 VMChangeStateEntry *e, *next;
1615
1616 trace_vm_state_notify(running, state);
1617
1618 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1619 e->cb(e->opaque, running, state);
1620 }
1621 }
1622
1623 static ShutdownCause reset_requested;
1624 static ShutdownCause shutdown_requested;
1625 static int shutdown_signal;
1626 static pid_t shutdown_pid;
1627 static int powerdown_requested;
1628 static int debug_requested;
1629 static int suspend_requested;
1630 static WakeupReason wakeup_reason;
1631 static NotifierList powerdown_notifiers =
1632 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1633 static NotifierList suspend_notifiers =
1634 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1635 static NotifierList wakeup_notifiers =
1636 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1637 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1638
1639 ShutdownCause qemu_shutdown_requested_get(void)
1640 {
1641 return shutdown_requested;
1642 }
1643
1644 ShutdownCause qemu_reset_requested_get(void)
1645 {
1646 return reset_requested;
1647 }
1648
1649 static int qemu_shutdown_requested(void)
1650 {
1651 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1652 }
1653
1654 static void qemu_kill_report(void)
1655 {
1656 if (!qtest_driver() && shutdown_signal) {
1657 if (shutdown_pid == 0) {
1658 /* This happens for eg ^C at the terminal, so it's worth
1659 * avoiding printing an odd message in that case.
1660 */
1661 error_report("terminating on signal %d", shutdown_signal);
1662 } else {
1663 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1664
1665 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1666 shutdown_signal, shutdown_pid,
1667 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1668 g_free(shutdown_cmd);
1669 }
1670 shutdown_signal = 0;
1671 }
1672 }
1673
1674 static ShutdownCause qemu_reset_requested(void)
1675 {
1676 ShutdownCause r = reset_requested;
1677
1678 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1679 reset_requested = SHUTDOWN_CAUSE_NONE;
1680 return r;
1681 }
1682 return SHUTDOWN_CAUSE_NONE;
1683 }
1684
1685 static int qemu_suspend_requested(void)
1686 {
1687 int r = suspend_requested;
1688 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1689 suspend_requested = 0;
1690 return r;
1691 }
1692 return false;
1693 }
1694
1695 static WakeupReason qemu_wakeup_requested(void)
1696 {
1697 return wakeup_reason;
1698 }
1699
1700 static int qemu_powerdown_requested(void)
1701 {
1702 int r = powerdown_requested;
1703 powerdown_requested = 0;
1704 return r;
1705 }
1706
1707 static int qemu_debug_requested(void)
1708 {
1709 int r = debug_requested;
1710 debug_requested = 0;
1711 return r;
1712 }
1713
1714 /*
1715 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1716 */
1717 void qemu_system_reset(ShutdownCause reason)
1718 {
1719 MachineClass *mc;
1720
1721 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1722
1723 cpu_synchronize_all_states();
1724
1725 if (mc && mc->reset) {
1726 mc->reset();
1727 } else {
1728 qemu_devices_reset();
1729 }
1730 if (reason) {
1731 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1732 &error_abort);
1733 }
1734 cpu_synchronize_all_post_reset();
1735 }
1736
1737 void qemu_system_guest_panicked(GuestPanicInformation *info)
1738 {
1739 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed\n");
1740
1741 if (current_cpu) {
1742 current_cpu->crash_occurred = true;
1743 }
1744 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1745 !!info, info, &error_abort);
1746 vm_stop(RUN_STATE_GUEST_PANICKED);
1747 if (!no_shutdown) {
1748 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1749 !!info, info, &error_abort);
1750 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1751 }
1752
1753 if (info) {
1754 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1755 qemu_log_mask(LOG_GUEST_ERROR, "HV crash parameters: (%#"PRIx64
1756 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1757 info->u.hyper_v.arg1,
1758 info->u.hyper_v.arg2,
1759 info->u.hyper_v.arg3,
1760 info->u.hyper_v.arg4,
1761 info->u.hyper_v.arg5);
1762 }
1763 qapi_free_GuestPanicInformation(info);
1764 }
1765 }
1766
1767 void qemu_system_reset_request(ShutdownCause reason)
1768 {
1769 if (no_reboot) {
1770 shutdown_requested = reason;
1771 } else {
1772 reset_requested = reason;
1773 }
1774 cpu_stop_current();
1775 qemu_notify_event();
1776 }
1777
1778 static void qemu_system_suspend(void)
1779 {
1780 pause_all_vcpus();
1781 notifier_list_notify(&suspend_notifiers, NULL);
1782 runstate_set(RUN_STATE_SUSPENDED);
1783 qapi_event_send_suspend(&error_abort);
1784 }
1785
1786 void qemu_system_suspend_request(void)
1787 {
1788 if (runstate_check(RUN_STATE_SUSPENDED)) {
1789 return;
1790 }
1791 suspend_requested = 1;
1792 cpu_stop_current();
1793 qemu_notify_event();
1794 }
1795
1796 void qemu_register_suspend_notifier(Notifier *notifier)
1797 {
1798 notifier_list_add(&suspend_notifiers, notifier);
1799 }
1800
1801 void qemu_system_wakeup_request(WakeupReason reason)
1802 {
1803 trace_system_wakeup_request(reason);
1804
1805 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1806 return;
1807 }
1808 if (!(wakeup_reason_mask & (1 << reason))) {
1809 return;
1810 }
1811 runstate_set(RUN_STATE_RUNNING);
1812 wakeup_reason = reason;
1813 qemu_notify_event();
1814 }
1815
1816 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1817 {
1818 if (enabled) {
1819 wakeup_reason_mask |= (1 << reason);
1820 } else {
1821 wakeup_reason_mask &= ~(1 << reason);
1822 }
1823 }
1824
1825 void qemu_register_wakeup_notifier(Notifier *notifier)
1826 {
1827 notifier_list_add(&wakeup_notifiers, notifier);
1828 }
1829
1830 void qemu_system_killed(int signal, pid_t pid)
1831 {
1832 shutdown_signal = signal;
1833 shutdown_pid = pid;
1834 no_shutdown = 0;
1835
1836 /* Cannot call qemu_system_shutdown_request directly because
1837 * we are in a signal handler.
1838 */
1839 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1840 qemu_notify_event();
1841 }
1842
1843 void qemu_system_shutdown_request(ShutdownCause reason)
1844 {
1845 trace_qemu_system_shutdown_request(reason);
1846 replay_shutdown_request(reason);
1847 shutdown_requested = reason;
1848 qemu_notify_event();
1849 }
1850
1851 static void qemu_system_powerdown(void)
1852 {
1853 qapi_event_send_powerdown(&error_abort);
1854 notifier_list_notify(&powerdown_notifiers, NULL);
1855 }
1856
1857 void qemu_system_powerdown_request(void)
1858 {
1859 trace_qemu_system_powerdown_request();
1860 powerdown_requested = 1;
1861 qemu_notify_event();
1862 }
1863
1864 void qemu_register_powerdown_notifier(Notifier *notifier)
1865 {
1866 notifier_list_add(&powerdown_notifiers, notifier);
1867 }
1868
1869 void qemu_system_debug_request(void)
1870 {
1871 debug_requested = 1;
1872 qemu_notify_event();
1873 }
1874
1875 static bool main_loop_should_exit(void)
1876 {
1877 RunState r;
1878 ShutdownCause request;
1879
1880 if (qemu_debug_requested()) {
1881 vm_stop(RUN_STATE_DEBUG);
1882 }
1883 if (qemu_suspend_requested()) {
1884 qemu_system_suspend();
1885 }
1886 request = qemu_shutdown_requested();
1887 if (request) {
1888 qemu_kill_report();
1889 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1890 &error_abort);
1891 if (no_shutdown) {
1892 vm_stop(RUN_STATE_SHUTDOWN);
1893 } else {
1894 return true;
1895 }
1896 }
1897 request = qemu_reset_requested();
1898 if (request) {
1899 pause_all_vcpus();
1900 qemu_system_reset(request);
1901 resume_all_vcpus();
1902 if (!runstate_check(RUN_STATE_RUNNING) &&
1903 !runstate_check(RUN_STATE_INMIGRATE)) {
1904 runstate_set(RUN_STATE_PRELAUNCH);
1905 }
1906 }
1907 if (qemu_wakeup_requested()) {
1908 pause_all_vcpus();
1909 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1910 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1911 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1912 resume_all_vcpus();
1913 qapi_event_send_wakeup(&error_abort);
1914 }
1915 if (qemu_powerdown_requested()) {
1916 qemu_system_powerdown();
1917 }
1918 if (qemu_vmstop_requested(&r)) {
1919 vm_stop(r);
1920 }
1921 return false;
1922 }
1923
1924 static void main_loop(void)
1925 {
1926 #ifdef CONFIG_PROFILER
1927 int64_t ti;
1928 #endif
1929 do {
1930 #ifdef CONFIG_PROFILER
1931 ti = profile_getclock();
1932 #endif
1933 main_loop_wait(false);
1934 #ifdef CONFIG_PROFILER
1935 dev_time += profile_getclock() - ti;
1936 #endif
1937 } while (!main_loop_should_exit());
1938 }
1939
1940 static void version(void)
1941 {
1942 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1943 QEMU_COPYRIGHT "\n");
1944 }
1945
1946 static void help(int exitcode)
1947 {
1948 version();
1949 printf("usage: %s [options] [disk_image]\n\n"
1950 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1951 error_get_progname());
1952
1953 #define QEMU_OPTIONS_GENERATE_HELP
1954 #include "qemu-options-wrapper.h"
1955
1956 printf("\nDuring emulation, the following keys are useful:\n"
1957 "ctrl-alt-f toggle full screen\n"
1958 "ctrl-alt-n switch to virtual console 'n'\n"
1959 "ctrl-alt toggle mouse and keyboard grab\n"
1960 "\n"
1961 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1962 "\n"
1963 QEMU_HELP_BOTTOM "\n");
1964
1965 exit(exitcode);
1966 }
1967
1968 #define HAS_ARG 0x0001
1969
1970 typedef struct QEMUOption {
1971 const char *name;
1972 int flags;
1973 int index;
1974 uint32_t arch_mask;
1975 } QEMUOption;
1976
1977 static const QEMUOption qemu_options[] = {
1978 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1979 #define QEMU_OPTIONS_GENERATE_OPTIONS
1980 #include "qemu-options-wrapper.h"
1981 { NULL },
1982 };
1983
1984 typedef struct VGAInterfaceInfo {
1985 const char *opt_name; /* option name */
1986 const char *name; /* human-readable name */
1987 /* Class names indicating that support is available.
1988 * If no class is specified, the interface is always available */
1989 const char *class_names[2];
1990 } VGAInterfaceInfo;
1991
1992 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1993 [VGA_NONE] = {
1994 .opt_name = "none",
1995 },
1996 [VGA_STD] = {
1997 .opt_name = "std",
1998 .name = "standard VGA",
1999 .class_names = { "VGA", "isa-vga" },
2000 },
2001 [VGA_CIRRUS] = {
2002 .opt_name = "cirrus",
2003 .name = "Cirrus VGA",
2004 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2005 },
2006 [VGA_VMWARE] = {
2007 .opt_name = "vmware",
2008 .name = "VMWare SVGA",
2009 .class_names = { "vmware-svga" },
2010 },
2011 [VGA_VIRTIO] = {
2012 .opt_name = "virtio",
2013 .name = "Virtio VGA",
2014 .class_names = { "virtio-vga" },
2015 },
2016 [VGA_QXL] = {
2017 .opt_name = "qxl",
2018 .name = "QXL VGA",
2019 .class_names = { "qxl-vga" },
2020 },
2021 [VGA_TCX] = {
2022 .opt_name = "tcx",
2023 .name = "TCX framebuffer",
2024 .class_names = { "SUNW,tcx" },
2025 },
2026 [VGA_CG3] = {
2027 .opt_name = "cg3",
2028 .name = "CG3 framebuffer",
2029 .class_names = { "cgthree" },
2030 },
2031 [VGA_XENFB] = {
2032 .opt_name = "xenfb",
2033 },
2034 };
2035
2036 static bool vga_interface_available(VGAInterfaceType t)
2037 {
2038 VGAInterfaceInfo *ti = &vga_interfaces[t];
2039
2040 assert(t < VGA_TYPE_MAX);
2041 return !ti->class_names[0] ||
2042 object_class_by_name(ti->class_names[0]) ||
2043 object_class_by_name(ti->class_names[1]);
2044 }
2045
2046 static void select_vgahw(const char *p)
2047 {
2048 const char *opts;
2049 int t;
2050
2051 assert(vga_interface_type == VGA_NONE);
2052 for (t = 0; t < VGA_TYPE_MAX; t++) {
2053 VGAInterfaceInfo *ti = &vga_interfaces[t];
2054 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2055 if (!vga_interface_available(t)) {
2056 error_report("%s not available", ti->name);
2057 exit(1);
2058 }
2059 vga_interface_type = t;
2060 break;
2061 }
2062 }
2063 if (t == VGA_TYPE_MAX) {
2064 invalid_vga:
2065 error_report("unknown vga type: %s", p);
2066 exit(1);
2067 }
2068 while (*opts) {
2069 const char *nextopt;
2070
2071 if (strstart(opts, ",retrace=", &nextopt)) {
2072 opts = nextopt;
2073 if (strstart(opts, "dumb", &nextopt))
2074 vga_retrace_method = VGA_RETRACE_DUMB;
2075 else if (strstart(opts, "precise", &nextopt))
2076 vga_retrace_method = VGA_RETRACE_PRECISE;
2077 else goto invalid_vga;
2078 } else goto invalid_vga;
2079 opts = nextopt;
2080 }
2081 }
2082
2083 static void parse_display(const char *p)
2084 {
2085 const char *opts;
2086
2087 if (strstart(p, "sdl", &opts)) {
2088 #ifdef CONFIG_SDL
2089 dpy.type = DISPLAY_TYPE_SDL;
2090 while (*opts) {
2091 const char *nextopt;
2092
2093 if (strstart(opts, ",frame=", &nextopt)) {
2094 g_printerr("The frame= sdl option is deprecated, and will be\n"
2095 "removed in a future release.\n");
2096 opts = nextopt;
2097 if (strstart(opts, "on", &nextopt)) {
2098 no_frame = 0;
2099 } else if (strstart(opts, "off", &nextopt)) {
2100 no_frame = 1;
2101 } else {
2102 goto invalid_sdl_args;
2103 }
2104 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2105 opts = nextopt;
2106 if (strstart(opts, "on", &nextopt)) {
2107 alt_grab = 1;
2108 } else if (strstart(opts, "off", &nextopt)) {
2109 alt_grab = 0;
2110 } else {
2111 goto invalid_sdl_args;
2112 }
2113 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2114 opts = nextopt;
2115 if (strstart(opts, "on", &nextopt)) {
2116 ctrl_grab = 1;
2117 } else if (strstart(opts, "off", &nextopt)) {
2118 ctrl_grab = 0;
2119 } else {
2120 goto invalid_sdl_args;
2121 }
2122 } else if (strstart(opts, ",window_close=", &nextopt)) {
2123 opts = nextopt;
2124 dpy.has_window_close = true;
2125 if (strstart(opts, "on", &nextopt)) {
2126 dpy.window_close = true;
2127 } else if (strstart(opts, "off", &nextopt)) {
2128 dpy.window_close = false;
2129 } else {
2130 goto invalid_sdl_args;
2131 }
2132 } else if (strstart(opts, ",gl=", &nextopt)) {
2133 opts = nextopt;
2134 dpy.has_gl = true;
2135 if (strstart(opts, "on", &nextopt)) {
2136 dpy.gl = true;
2137 } else if (strstart(opts, "off", &nextopt)) {
2138 dpy.gl = false;
2139 } else {
2140 goto invalid_sdl_args;
2141 }
2142 } else {
2143 invalid_sdl_args:
2144 error_report("invalid SDL option string");
2145 exit(1);
2146 }
2147 opts = nextopt;
2148 }
2149 #else
2150 error_report("SDL support is disabled");
2151 exit(1);
2152 #endif
2153 } else if (strstart(p, "vnc", &opts)) {
2154 if (*opts == '=') {
2155 vnc_parse(opts + 1, &error_fatal);
2156 } else {
2157 error_report("VNC requires a display argument vnc=<display>");
2158 exit(1);
2159 }
2160 } else if (strstart(p, "egl-headless", &opts)) {
2161 #ifdef CONFIG_OPENGL_DMABUF
2162 display_opengl = 1;
2163 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2164 #else
2165 error_report("egl support is disabled");
2166 exit(1);
2167 #endif
2168 } else if (strstart(p, "curses", &opts)) {
2169 #ifdef CONFIG_CURSES
2170 dpy.type = DISPLAY_TYPE_CURSES;
2171 #else
2172 error_report("curses support is disabled");
2173 exit(1);
2174 #endif
2175 } else if (strstart(p, "gtk", &opts)) {
2176 #ifdef CONFIG_GTK
2177 dpy.type = DISPLAY_TYPE_GTK;
2178 while (*opts) {
2179 const char *nextopt;
2180
2181 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2182 opts = nextopt;
2183 dpy.u.gtk.has_grab_on_hover = true;
2184 if (strstart(opts, "on", &nextopt)) {
2185 dpy.u.gtk.grab_on_hover = true;
2186 } else if (strstart(opts, "off", &nextopt)) {
2187 dpy.u.gtk.grab_on_hover = false;
2188 } else {
2189 goto invalid_gtk_args;
2190 }
2191 } else if (strstart(opts, ",gl=", &nextopt)) {
2192 opts = nextopt;
2193 dpy.has_gl = true;
2194 if (strstart(opts, "on", &nextopt)) {
2195 dpy.gl = true;
2196 } else if (strstart(opts, "off", &nextopt)) {
2197 dpy.gl = false;
2198 } else {
2199 goto invalid_gtk_args;
2200 }
2201 } else {
2202 invalid_gtk_args:
2203 error_report("invalid GTK option string");
2204 exit(1);
2205 }
2206 opts = nextopt;
2207 }
2208 #else
2209 error_report("GTK support is disabled");
2210 exit(1);
2211 #endif
2212 } else if (strstart(p, "none", &opts)) {
2213 dpy.type = DISPLAY_TYPE_NONE;
2214 } else {
2215 error_report("unknown display type");
2216 exit(1);
2217 }
2218 }
2219
2220 static int balloon_parse(const char *arg)
2221 {
2222 QemuOpts *opts;
2223
2224 if (strcmp(arg, "none") == 0) {
2225 return 0;
2226 }
2227
2228 if (!strncmp(arg, "virtio", 6)) {
2229 if (arg[6] == ',') {
2230 /* have params -> parse them */
2231 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2232 false);
2233 if (!opts)
2234 return -1;
2235 } else {
2236 /* create empty opts */
2237 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2238 &error_abort);
2239 }
2240 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2241 return 0;
2242 }
2243
2244 return -1;
2245 }
2246
2247 char *qemu_find_file(int type, const char *name)
2248 {
2249 int i;
2250 const char *subdir;
2251 char *buf;
2252
2253 /* Try the name as a straight path first */
2254 if (access(name, R_OK) == 0) {
2255 trace_load_file(name, name);
2256 return g_strdup(name);
2257 }
2258
2259 switch (type) {
2260 case QEMU_FILE_TYPE_BIOS:
2261 subdir = "";
2262 break;
2263 case QEMU_FILE_TYPE_KEYMAP:
2264 subdir = "keymaps/";
2265 break;
2266 default:
2267 abort();
2268 }
2269
2270 for (i = 0; i < data_dir_idx; i++) {
2271 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2272 if (access(buf, R_OK) == 0) {
2273 trace_load_file(name, buf);
2274 return buf;
2275 }
2276 g_free(buf);
2277 }
2278 return NULL;
2279 }
2280
2281 static void qemu_add_data_dir(const char *path)
2282 {
2283 int i;
2284
2285 if (path == NULL) {
2286 return;
2287 }
2288 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2289 return;
2290 }
2291 for (i = 0; i < data_dir_idx; i++) {
2292 if (strcmp(data_dir[i], path) == 0) {
2293 return; /* duplicate */
2294 }
2295 }
2296 data_dir[data_dir_idx++] = g_strdup(path);
2297 }
2298
2299 static inline bool nonempty_str(const char *str)
2300 {
2301 return str && *str;
2302 }
2303
2304 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2305 {
2306 gchar *buf;
2307 size_t size;
2308 const char *name, *file, *str;
2309 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2310
2311 if (fw_cfg == NULL) {
2312 error_report("fw_cfg device not available");
2313 return -1;
2314 }
2315 name = qemu_opt_get(opts, "name");
2316 file = qemu_opt_get(opts, "file");
2317 str = qemu_opt_get(opts, "string");
2318
2319 /* we need name and either a file or the content string */
2320 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2321 error_report("invalid argument(s)");
2322 return -1;
2323 }
2324 if (nonempty_str(file) && nonempty_str(str)) {
2325 error_report("file and string are mutually exclusive");
2326 return -1;
2327 }
2328 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2329 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2330 return -1;
2331 }
2332 if (strncmp(name, "opt/", 4) != 0) {
2333 warn_report("externally provided fw_cfg item names "
2334 "should be prefixed with \"opt/\"");
2335 }
2336 if (nonempty_str(str)) {
2337 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2338 buf = g_memdup(str, size);
2339 } else {
2340 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2341 error_report("can't load %s", file);
2342 return -1;
2343 }
2344 }
2345 /* For legacy, keep user files in a specific global order. */
2346 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2347 fw_cfg_add_file(fw_cfg, name, buf, size);
2348 fw_cfg_reset_order_override(fw_cfg);
2349 return 0;
2350 }
2351
2352 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2353 {
2354 return qdev_device_help(opts);
2355 }
2356
2357 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2358 {
2359 Error *err = NULL;
2360 DeviceState *dev;
2361
2362 dev = qdev_device_add(opts, &err);
2363 if (!dev) {
2364 error_report_err(err);
2365 return -1;
2366 }
2367 object_unref(OBJECT(dev));
2368 return 0;
2369 }
2370
2371 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2372 {
2373 Error *local_err = NULL;
2374
2375 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2376 if (local_err) {
2377 error_report_err(local_err);
2378 return -1;
2379 }
2380 exit(0);
2381 }
2382 return 0;
2383 }
2384
2385 #ifdef CONFIG_VIRTFS
2386 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2387 {
2388 return qemu_fsdev_add(opts);
2389 }
2390 #endif
2391
2392 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2393 {
2394 Chardev *chr;
2395 const char *chardev;
2396 const char *mode;
2397 int flags;
2398
2399 mode = qemu_opt_get(opts, "mode");
2400 if (mode == NULL) {
2401 mode = "readline";
2402 }
2403 if (strcmp(mode, "readline") == 0) {
2404 flags = MONITOR_USE_READLINE;
2405 } else if (strcmp(mode, "control") == 0) {
2406 flags = MONITOR_USE_CONTROL;
2407 } else {
2408 error_report("unknown monitor mode \"%s\"", mode);
2409 exit(1);
2410 }
2411
2412 if (qemu_opt_get_bool(opts, "pretty", 0))
2413 flags |= MONITOR_USE_PRETTY;
2414
2415 chardev = qemu_opt_get(opts, "chardev");
2416 chr = qemu_chr_find(chardev);
2417 if (chr == NULL) {
2418 error_report("chardev \"%s\" not found", chardev);
2419 exit(1);
2420 }
2421
2422 monitor_init(chr, flags);
2423 return 0;
2424 }
2425
2426 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2427 {
2428 static int monitor_device_index = 0;
2429 QemuOpts *opts;
2430 const char *p;
2431 char label[32];
2432
2433 if (strstart(optarg, "chardev:", &p)) {
2434 snprintf(label, sizeof(label), "%s", p);
2435 } else {
2436 snprintf(label, sizeof(label), "compat_monitor%d",
2437 monitor_device_index);
2438 opts = qemu_chr_parse_compat(label, optarg);
2439 if (!opts) {
2440 error_report("parse error: %s", optarg);
2441 exit(1);
2442 }
2443 }
2444
2445 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2446 qemu_opt_set(opts, "mode", mode, &error_abort);
2447 qemu_opt_set(opts, "chardev", label, &error_abort);
2448 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2449 monitor_device_index++;
2450 }
2451
2452 struct device_config {
2453 enum {
2454 DEV_USB, /* -usbdevice */
2455 DEV_BT, /* -bt */
2456 DEV_SERIAL, /* -serial */
2457 DEV_PARALLEL, /* -parallel */
2458 DEV_VIRTCON, /* -virtioconsole */
2459 DEV_DEBUGCON, /* -debugcon */
2460 DEV_GDB, /* -gdb, -s */
2461 DEV_SCLP, /* s390 sclp */
2462 } type;
2463 const char *cmdline;
2464 Location loc;
2465 QTAILQ_ENTRY(device_config) next;
2466 };
2467
2468 static QTAILQ_HEAD(, device_config) device_configs =
2469 QTAILQ_HEAD_INITIALIZER(device_configs);
2470
2471 static void add_device_config(int type, const char *cmdline)
2472 {
2473 struct device_config *conf;
2474
2475 conf = g_malloc0(sizeof(*conf));
2476 conf->type = type;
2477 conf->cmdline = cmdline;
2478 loc_save(&conf->loc);
2479 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2480 }
2481
2482 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2483 {
2484 struct device_config *conf;
2485 int rc;
2486
2487 QTAILQ_FOREACH(conf, &device_configs, next) {
2488 if (conf->type != type)
2489 continue;
2490 loc_push_restore(&conf->loc);
2491 rc = func(conf->cmdline);
2492 loc_pop(&conf->loc);
2493 if (rc) {
2494 return rc;
2495 }
2496 }
2497 return 0;
2498 }
2499
2500 static int serial_parse(const char *devname)
2501 {
2502 static int index = 0;
2503 char label[32];
2504
2505 if (strcmp(devname, "none") == 0)
2506 return 0;
2507 if (index == MAX_SERIAL_PORTS) {
2508 error_report("too many serial ports");
2509 exit(1);
2510 }
2511 snprintf(label, sizeof(label), "serial%d", index);
2512 serial_hds[index] = qemu_chr_new(label, devname);
2513 if (!serial_hds[index]) {
2514 error_report("could not connect serial device"
2515 " to character backend '%s'", devname);
2516 return -1;
2517 }
2518 index++;
2519 return 0;
2520 }
2521
2522 static int parallel_parse(const char *devname)
2523 {
2524 static int index = 0;
2525 char label[32];
2526
2527 if (strcmp(devname, "none") == 0)
2528 return 0;
2529 if (index == MAX_PARALLEL_PORTS) {
2530 error_report("too many parallel ports");
2531 exit(1);
2532 }
2533 snprintf(label, sizeof(label), "parallel%d", index);
2534 parallel_hds[index] = qemu_chr_new(label, devname);
2535 if (!parallel_hds[index]) {
2536 error_report("could not connect parallel device"
2537 " to character backend '%s'", devname);
2538 return -1;
2539 }
2540 index++;
2541 return 0;
2542 }
2543
2544 static int virtcon_parse(const char *devname)
2545 {
2546 QemuOptsList *device = qemu_find_opts("device");
2547 static int index = 0;
2548 char label[32];
2549 QemuOpts *bus_opts, *dev_opts;
2550
2551 if (strcmp(devname, "none") == 0)
2552 return 0;
2553 if (index == MAX_VIRTIO_CONSOLES) {
2554 error_report("too many virtio consoles");
2555 exit(1);
2556 }
2557
2558 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2559 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2560
2561 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2562 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2563
2564 snprintf(label, sizeof(label), "virtcon%d", index);
2565 virtcon_hds[index] = qemu_chr_new(label, devname);
2566 if (!virtcon_hds[index]) {
2567 error_report("could not connect virtio console"
2568 " to character backend '%s'", devname);
2569 return -1;
2570 }
2571 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2572
2573 index++;
2574 return 0;
2575 }
2576
2577 static int sclp_parse(const char *devname)
2578 {
2579 QemuOptsList *device = qemu_find_opts("device");
2580 static int index = 0;
2581 char label[32];
2582 QemuOpts *dev_opts;
2583
2584 if (strcmp(devname, "none") == 0) {
2585 return 0;
2586 }
2587 if (index == MAX_SCLP_CONSOLES) {
2588 error_report("too many sclp consoles");
2589 exit(1);
2590 }
2591
2592 assert(arch_type == QEMU_ARCH_S390X);
2593
2594 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2595 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2596
2597 snprintf(label, sizeof(label), "sclpcon%d", index);
2598 sclp_hds[index] = qemu_chr_new(label, devname);
2599 if (!sclp_hds[index]) {
2600 error_report("could not connect sclp console"
2601 " to character backend '%s'", devname);
2602 return -1;
2603 }
2604 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2605
2606 index++;
2607 return 0;
2608 }
2609
2610 static int debugcon_parse(const char *devname)
2611 {
2612 QemuOpts *opts;
2613
2614 if (!qemu_chr_new("debugcon", devname)) {
2615 exit(1);
2616 }
2617 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2618 if (!opts) {
2619 error_report("already have a debugcon device");
2620 exit(1);
2621 }
2622 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2623 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2624 return 0;
2625 }
2626
2627 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2628 {
2629 const MachineClass *mc1 = a, *mc2 = b;
2630 int res;
2631
2632 if (mc1->family == NULL) {
2633 if (mc2->family == NULL) {
2634 /* Compare standalone machine types against each other; they sort
2635 * in increasing order.
2636 */
2637 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2638 object_class_get_name(OBJECT_CLASS(mc2)));
2639 }
2640
2641 /* Standalone machine types sort after families. */
2642 return 1;
2643 }
2644
2645 if (mc2->family == NULL) {
2646 /* Families sort before standalone machine types. */
2647 return -1;
2648 }
2649
2650 /* Families sort between each other alphabetically increasingly. */
2651 res = strcmp(mc1->family, mc2->family);
2652 if (res != 0) {
2653 return res;
2654 }
2655
2656 /* Within the same family, machine types sort in decreasing order. */
2657 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2658 object_class_get_name(OBJECT_CLASS(mc1)));
2659 }
2660
2661 static MachineClass *machine_parse(const char *name)
2662 {
2663 MachineClass *mc = NULL;
2664 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2665
2666 if (name) {
2667 mc = find_machine(name);
2668 }
2669 if (mc) {
2670 g_slist_free(machines);
2671 return mc;
2672 }
2673 if (name && !is_help_option(name)) {
2674 error_report("unsupported machine type");
2675 error_printf("Use -machine help to list supported machines\n");
2676 } else {
2677 printf("Supported machines are:\n");
2678 machines = g_slist_sort(machines, machine_class_cmp);
2679 for (el = machines; el; el = el->next) {
2680 MachineClass *mc = el->data;
2681 if (mc->alias) {
2682 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2683 }
2684 printf("%-20s %s%s\n", mc->name, mc->desc,
2685 mc->is_default ? " (default)" : "");
2686 }
2687 }
2688
2689 g_slist_free(machines);
2690 exit(!name || !is_help_option(name));
2691 }
2692
2693 void qemu_add_exit_notifier(Notifier *notify)
2694 {
2695 notifier_list_add(&exit_notifiers, notify);
2696 }
2697
2698 void qemu_remove_exit_notifier(Notifier *notify)
2699 {
2700 notifier_remove(notify);
2701 }
2702
2703 static void qemu_run_exit_notifiers(void)
2704 {
2705 notifier_list_notify(&exit_notifiers, NULL);
2706 }
2707
2708 static bool machine_init_done;
2709
2710 void qemu_add_machine_init_done_notifier(Notifier *notify)
2711 {
2712 notifier_list_add(&machine_init_done_notifiers, notify);
2713 if (machine_init_done) {
2714 notify->notify(notify, NULL);
2715 }
2716 }
2717
2718 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2719 {
2720 notifier_remove(notify);
2721 }
2722
2723 static void qemu_run_machine_init_done_notifiers(void)
2724 {
2725 notifier_list_notify(&machine_init_done_notifiers, NULL);
2726 machine_init_done = true;
2727 }
2728
2729 static const QEMUOption *lookup_opt(int argc, char **argv,
2730 const char **poptarg, int *poptind)
2731 {
2732 const QEMUOption *popt;
2733 int optind = *poptind;
2734 char *r = argv[optind];
2735 const char *optarg;
2736
2737 loc_set_cmdline(argv, optind, 1);
2738 optind++;
2739 /* Treat --foo the same as -foo. */
2740 if (r[1] == '-')
2741 r++;
2742 popt = qemu_options;
2743 for(;;) {
2744 if (!popt->name) {
2745 error_report("invalid option");
2746 exit(1);
2747 }
2748 if (!strcmp(popt->name, r + 1))
2749 break;
2750 popt++;
2751 }
2752 if (popt->flags & HAS_ARG) {
2753 if (optind >= argc) {
2754 error_report("requires an argument");
2755 exit(1);
2756 }
2757 optarg = argv[optind++];
2758 loc_set_cmdline(argv, optind - 2, 2);
2759 } else {
2760 optarg = NULL;
2761 }
2762
2763 *poptarg = optarg;
2764 *poptind = optind;
2765
2766 return popt;
2767 }
2768
2769 static MachineClass *select_machine(void)
2770 {
2771 MachineClass *machine_class = find_default_machine();
2772 const char *optarg;
2773 QemuOpts *opts;
2774 Location loc;
2775
2776 loc_push_none(&loc);
2777
2778 opts = qemu_get_machine_opts();
2779 qemu_opts_loc_restore(opts);
2780
2781 optarg = qemu_opt_get(opts, "type");
2782 if (optarg) {
2783 machine_class = machine_parse(optarg);
2784 }
2785
2786 if (!machine_class) {
2787 error_report("No machine specified, and there is no default");
2788 error_printf("Use -machine help to list supported machines\n");
2789 exit(1);
2790 }
2791
2792 loc_pop(&loc);
2793 return machine_class;
2794 }
2795
2796 static int machine_set_property(void *opaque,
2797 const char *name, const char *value,
2798 Error **errp)
2799 {
2800 Object *obj = OBJECT(opaque);
2801 Error *local_err = NULL;
2802 char *p, *qom_name;
2803
2804 if (strcmp(name, "type") == 0) {
2805 return 0;
2806 }
2807
2808 qom_name = g_strdup(name);
2809 for (p = qom_name; *p; p++) {
2810 if (*p == '_') {
2811 *p = '-';
2812 }
2813 }
2814
2815 object_property_parse(obj, value, qom_name, &local_err);
2816 g_free(qom_name);
2817
2818 if (local_err) {
2819 error_report_err(local_err);
2820 return -1;
2821 }
2822
2823 return 0;
2824 }
2825
2826
2827 /*
2828 * Initial object creation happens before all other
2829 * QEMU data types are created. The majority of objects
2830 * can be created at this point. The rng-egd object
2831 * cannot be created here, as it depends on the chardev
2832 * already existing.
2833 */
2834 static bool object_create_initial(const char *type)
2835 {
2836 if (g_str_equal(type, "rng-egd") ||
2837 g_str_has_prefix(type, "pr-manager-")) {
2838 return false;
2839 }
2840
2841 /*
2842 * return false for concrete netfilters since
2843 * they depend on netdevs already existing
2844 */
2845 if (g_str_equal(type, "filter-buffer") ||
2846 g_str_equal(type, "filter-dump") ||
2847 g_str_equal(type, "filter-mirror") ||
2848 g_str_equal(type, "filter-redirector") ||
2849 g_str_equal(type, "colo-compare") ||
2850 g_str_equal(type, "filter-rewriter") ||
2851 g_str_equal(type, "filter-replay")) {
2852 return false;
2853 }
2854
2855 /* Memory allocation by backends needs to be done
2856 * after configure_accelerator() (due to the tcg_enabled()
2857 * checks at memory_region_init_*()).
2858 *
2859 * Also, allocation of large amounts of memory may delay
2860 * chardev initialization for too long, and trigger timeouts
2861 * on software that waits for a monitor socket to be created
2862 * (e.g. libvirt).
2863 */
2864 if (g_str_has_prefix(type, "memory-backend-")) {
2865 return false;
2866 }
2867
2868 return true;
2869 }
2870
2871
2872 /*
2873 * The remainder of object creation happens after the
2874 * creation of chardev, fsdev, net clients and device data types.
2875 */
2876 static bool object_create_delayed(const char *type)
2877 {
2878 return !object_create_initial(type);
2879 }
2880
2881
2882 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2883 MachineClass *mc)
2884 {
2885 uint64_t sz;
2886 const char *mem_str;
2887 const char *maxmem_str, *slots_str;
2888 const ram_addr_t default_ram_size = mc->default_ram_size;
2889 QemuOpts *opts = qemu_find_opts_singleton("memory");
2890 Location loc;
2891
2892 loc_push_none(&loc);
2893 qemu_opts_loc_restore(opts);
2894
2895 sz = 0;
2896 mem_str = qemu_opt_get(opts, "size");
2897 if (mem_str) {
2898 if (!*mem_str) {
2899 error_report("missing 'size' option value");
2900 exit(EXIT_FAILURE);
2901 }
2902
2903 sz = qemu_opt_get_size(opts, "size", ram_size);
2904
2905 /* Fix up legacy suffix-less format */
2906 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2907 uint64_t overflow_check = sz;
2908
2909 sz <<= 20;
2910 if ((sz >> 20) != overflow_check) {
2911 error_report("too large 'size' option value");
2912 exit(EXIT_FAILURE);
2913 }
2914 }
2915 }
2916
2917 /* backward compatibility behaviour for case "-m 0" */
2918 if (sz == 0) {
2919 sz = default_ram_size;
2920 }
2921
2922 sz = QEMU_ALIGN_UP(sz, 8192);
2923 ram_size = sz;
2924 if (ram_size != sz) {
2925 error_report("ram size too large");
2926 exit(EXIT_FAILURE);
2927 }
2928
2929 /* store value for the future use */
2930 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2931 *maxram_size = ram_size;
2932
2933 maxmem_str = qemu_opt_get(opts, "maxmem");
2934 slots_str = qemu_opt_get(opts, "slots");
2935 if (maxmem_str && slots_str) {
2936 uint64_t slots;
2937
2938 sz = qemu_opt_get_size(opts, "maxmem", 0);
2939 slots = qemu_opt_get_number(opts, "slots", 0);
2940 if (sz < ram_size) {
2941 error_report("invalid value of -m option maxmem: "
2942 "maximum memory size (0x%" PRIx64 ") must be at least "
2943 "the initial memory size (0x" RAM_ADDR_FMT ")",
2944 sz, ram_size);
2945 exit(EXIT_FAILURE);
2946 } else if (sz > ram_size) {
2947 if (!slots) {
2948 error_report("invalid value of -m option: maxmem was "
2949 "specified, but no hotplug slots were specified");
2950 exit(EXIT_FAILURE);
2951 }
2952 } else if (slots) {
2953 error_report("invalid value of -m option maxmem: "
2954 "memory slots were specified but maximum memory size "
2955 "(0x%" PRIx64 ") is equal to the initial memory size "
2956 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2957 exit(EXIT_FAILURE);
2958 }
2959
2960 *maxram_size = sz;
2961 *ram_slots = slots;
2962 } else if ((!maxmem_str && slots_str) ||
2963 (maxmem_str && !slots_str)) {
2964 error_report("invalid -m option value: missing "
2965 "'%s' option", slots_str ? "maxmem" : "slots");
2966 exit(EXIT_FAILURE);
2967 }
2968
2969 loc_pop(&loc);
2970 }
2971
2972 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2973 {
2974 GlobalProperty *g;
2975
2976 g = g_malloc0(sizeof(*g));
2977 g->driver = qemu_opt_get(opts, "driver");
2978 g->property = qemu_opt_get(opts, "property");
2979 g->value = qemu_opt_get(opts, "value");
2980 g->user_provided = true;
2981 g->errp = &error_fatal;
2982 qdev_prop_register_global(g);
2983 return 0;
2984 }
2985
2986 static int qemu_read_default_config_file(void)
2987 {
2988 int ret;
2989
2990 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2991 if (ret < 0 && ret != -ENOENT) {
2992 return ret;
2993 }
2994
2995 return 0;
2996 }
2997
2998 static void user_register_global_props(void)
2999 {
3000 qemu_opts_foreach(qemu_find_opts("global"),
3001 global_init_func, NULL, NULL);
3002 }
3003
3004 /*
3005 * Note: we should see that these properties are actually having a
3006 * priority: accel < machine < user. This means e.g. when user
3007 * specifies something in "-global", it'll always be used with highest
3008 * priority than either machine/accelerator compat properties.
3009 */
3010 static void register_global_properties(MachineState *ms)
3011 {
3012 accel_register_compat_props(ms->accelerator);
3013 machine_register_compat_props(ms);
3014 user_register_global_props();
3015 }
3016
3017 int main(int argc, char **argv, char **envp)
3018 {
3019 int i;
3020 int snapshot, linux_boot;
3021 const char *initrd_filename;
3022 const char *kernel_filename, *kernel_cmdline;
3023 const char *boot_order = NULL;
3024 const char *boot_once = NULL;
3025 DisplayState *ds;
3026 QemuOpts *opts, *machine_opts;
3027 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3028 QemuOptsList *olist;
3029 int optind;
3030 const char *optarg;
3031 const char *loadvm = NULL;
3032 MachineClass *machine_class;
3033 const char *cpu_model;
3034 const char *vga_model = NULL;
3035 const char *qtest_chrdev = NULL;
3036 const char *qtest_log = NULL;
3037 const char *pid_file = NULL;
3038 const char *incoming = NULL;
3039 bool userconfig = true;
3040 bool nographic = false;
3041 int display_remote = 0;
3042 const char *log_mask = NULL;
3043 const char *log_file = NULL;
3044 char *trace_file = NULL;
3045 ram_addr_t maxram_size;
3046 uint64_t ram_slots = 0;
3047 FILE *vmstate_dump_file = NULL;
3048 Error *main_loop_err = NULL;
3049 Error *err = NULL;
3050 bool list_data_dirs = false;
3051 char *dir, **dirs;
3052 typedef struct BlockdevOptions_queue {
3053 BlockdevOptions *bdo;
3054 Location loc;
3055 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3056 } BlockdevOptions_queue;
3057 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3058 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3059
3060 module_call_init(MODULE_INIT_TRACE);
3061
3062 qemu_init_cpu_list();
3063 qemu_init_cpu_loop();
3064 qemu_mutex_lock_iothread();
3065
3066 atexit(qemu_run_exit_notifiers);
3067 error_set_progname(argv[0]);
3068 qemu_init_exec_dir(argv[0]);
3069
3070 module_call_init(MODULE_INIT_QOM);
3071 monitor_init_qmp_commands();
3072
3073 qemu_add_opts(&qemu_drive_opts);
3074 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3075 qemu_add_drive_opts(&qemu_common_drive_opts);
3076 qemu_add_drive_opts(&qemu_drive_opts);
3077 qemu_add_drive_opts(&bdrv_runtime_opts);
3078 qemu_add_opts(&qemu_chardev_opts);
3079 qemu_add_opts(&qemu_device_opts);
3080 qemu_add_opts(&qemu_netdev_opts);
3081 qemu_add_opts(&qemu_net_opts);
3082 qemu_add_opts(&qemu_rtc_opts);
3083 qemu_add_opts(&qemu_global_opts);
3084 qemu_add_opts(&qemu_mon_opts);
3085 qemu_add_opts(&qemu_trace_opts);
3086 qemu_add_opts(&qemu_option_rom_opts);
3087 qemu_add_opts(&qemu_machine_opts);
3088 qemu_add_opts(&qemu_accel_opts);
3089 qemu_add_opts(&qemu_mem_opts);
3090 qemu_add_opts(&qemu_smp_opts);
3091 qemu_add_opts(&qemu_boot_opts);
3092 qemu_add_opts(&qemu_sandbox_opts);
3093 qemu_add_opts(&qemu_add_fd_opts);
3094 qemu_add_opts(&qemu_object_opts);
3095 qemu_add_opts(&qemu_tpmdev_opts);
3096 qemu_add_opts(&qemu_realtime_opts);
3097 qemu_add_opts(&qemu_msg_opts);
3098 qemu_add_opts(&qemu_name_opts);
3099 qemu_add_opts(&qemu_numa_opts);
3100 qemu_add_opts(&qemu_icount_opts);
3101 qemu_add_opts(&qemu_semihosting_config_opts);
3102 qemu_add_opts(&qemu_fw_cfg_opts);
3103 module_call_init(MODULE_INIT_OPTS);
3104
3105 runstate_init();
3106
3107 if (qcrypto_init(&err) < 0) {
3108 error_reportf_err(err, "cannot initialize crypto: ");
3109 exit(1);
3110 }
3111 rtc_clock = QEMU_CLOCK_HOST;
3112
3113 QLIST_INIT (&vm_change_state_head);
3114 os_setup_early_signal_handling();
3115
3116 cpu_model = NULL;
3117 snapshot = 0;
3118
3119 nb_nics = 0;
3120
3121 bdrv_init_with_whitelist();
3122
3123 autostart = 1;
3124
3125 /* first pass of option parsing */
3126 optind = 1;
3127 while (optind < argc) {
3128 if (argv[optind][0] != '-') {
3129 /* disk image */
3130 optind++;
3131 } else {
3132 const QEMUOption *popt;
3133
3134 popt = lookup_opt(argc, argv, &optarg, &optind);
3135 switch (popt->index) {
3136 case QEMU_OPTION_nodefconfig:
3137 case QEMU_OPTION_nouserconfig:
3138 userconfig = false;
3139 break;
3140 }
3141 }
3142 }
3143
3144 if (userconfig) {
3145 if (qemu_read_default_config_file() < 0) {
3146 exit(1);
3147 }
3148 }
3149
3150 /* second pass of option parsing */
3151 optind = 1;
3152 for(;;) {
3153 if (optind >= argc)
3154 break;
3155 if (argv[optind][0] != '-') {
3156 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3157 } else {
3158 const QEMUOption *popt;
3159
3160 popt = lookup_opt(argc, argv, &optarg, &optind);
3161 if (!(popt->arch_mask & arch_type)) {
3162 error_report("Option not supported for this target");
3163 exit(1);
3164 }
3165 switch(popt->index) {
3166 case QEMU_OPTION_no_kvm_irqchip: {
3167 olist = qemu_find_opts("machine");
3168 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3169 break;
3170 }
3171 case QEMU_OPTION_cpu:
3172 /* hw initialization will check this */
3173 cpu_model = optarg;
3174 break;
3175 case QEMU_OPTION_hda:
3176 case QEMU_OPTION_hdb:
3177 case QEMU_OPTION_hdc:
3178 case QEMU_OPTION_hdd:
3179 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3180 HD_OPTS);
3181 break;
3182 case QEMU_OPTION_blockdev:
3183 {
3184 Visitor *v;
3185 BlockdevOptions_queue *bdo;
3186
3187 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3188 if (!v) {
3189 error_report_err(err);
3190 exit(1);
3191 }
3192
3193 bdo = g_new(BlockdevOptions_queue, 1);
3194 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3195 &error_fatal);
3196 visit_free(v);
3197 loc_save(&bdo->loc);
3198 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3199 break;
3200 }
3201 case QEMU_OPTION_drive:
3202 if (drive_def(optarg) == NULL) {
3203 exit(1);
3204 }
3205 break;
3206 case QEMU_OPTION_set:
3207 if (qemu_set_option(optarg) != 0)
3208 exit(1);
3209 break;
3210 case QEMU_OPTION_global:
3211 if (qemu_global_option(optarg) != 0)
3212 exit(1);
3213 break;
3214 case QEMU_OPTION_mtdblock:
3215 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3216 break;
3217 case QEMU_OPTION_sd:
3218 drive_add(IF_SD, -1, optarg, SD_OPTS);
3219 break;
3220 case QEMU_OPTION_pflash:
3221 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3222 break;
3223 case QEMU_OPTION_snapshot:
3224 snapshot = 1;
3225 break;
3226 case QEMU_OPTION_numa:
3227 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3228 optarg, true);
3229 if (!opts) {
3230 exit(1);
3231 }
3232 break;
3233 case QEMU_OPTION_display:
3234 parse_display(optarg);
3235 break;
3236 case QEMU_OPTION_nographic:
3237 olist = qemu_find_opts("machine");
3238 qemu_opts_parse_noisily(olist, "graphics=off", false);
3239 nographic = true;
3240 dpy.type = DISPLAY_TYPE_NONE;
3241 break;
3242 case QEMU_OPTION_curses:
3243 #ifdef CONFIG_CURSES
3244 dpy.type = DISPLAY_TYPE_CURSES;
3245 #else
3246 error_report("curses support is disabled");
3247 exit(1);
3248 #endif
3249 break;
3250 case QEMU_OPTION_portrait:
3251 graphic_rotate = 90;
3252 break;
3253 case QEMU_OPTION_rotate:
3254 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3255 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3256 graphic_rotate != 180 && graphic_rotate != 270) {
3257 error_report("only 90, 180, 270 deg rotation is available");
3258 exit(1);
3259 }
3260 break;
3261 case QEMU_OPTION_kernel:
3262 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3263 &error_abort);
3264 break;
3265 case QEMU_OPTION_initrd:
3266 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3267 &error_abort);
3268 break;
3269 case QEMU_OPTION_append:
3270 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3271 &error_abort);
3272 break;
3273 case QEMU_OPTION_dtb:
3274 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3275 &error_abort);
3276 break;
3277 case QEMU_OPTION_cdrom:
3278 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3279 break;
3280 case QEMU_OPTION_boot:
3281 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3282 optarg, true);
3283 if (!opts) {
3284 exit(1);
3285 }
3286 break;
3287 case QEMU_OPTION_fda:
3288 case QEMU_OPTION_fdb:
3289 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3290 optarg, FD_OPTS);
3291 break;
3292 case QEMU_OPTION_no_fd_bootchk:
3293 fd_bootchk = 0;
3294 break;
3295 case QEMU_OPTION_netdev:
3296 default_net = 0;
3297 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3298 exit(1);
3299 }
3300 break;
3301 case QEMU_OPTION_net:
3302 default_net = 0;
3303 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3304 exit(1);
3305 }
3306 break;
3307 #ifdef CONFIG_LIBISCSI
3308 case QEMU_OPTION_iscsi:
3309 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3310 optarg, false);
3311 if (!opts) {
3312 exit(1);
3313 }
3314 break;
3315 #endif
3316 #ifdef CONFIG_SLIRP
3317 case QEMU_OPTION_tftp:
3318 error_report("The -tftp option is deprecated. "
3319 "Please use '-netdev user,tftp=...' instead.");
3320 legacy_tftp_prefix = optarg;
3321 break;
3322 case QEMU_OPTION_bootp:
3323 error_report("The -bootp option is deprecated. "
3324 "Please use '-netdev user,bootfile=...' instead.");
3325 legacy_bootp_filename = optarg;
3326 break;
3327 case QEMU_OPTION_redir:
3328 error_report("The -redir option is deprecated. "
3329 "Please use '-netdev user,hostfwd=...' instead.");
3330 if (net_slirp_redir(optarg) < 0)
3331 exit(1);
3332 break;
3333 #endif
3334 case QEMU_OPTION_bt:
3335 add_device_config(DEV_BT, optarg);
3336 break;
3337 case QEMU_OPTION_audio_help:
3338 AUD_help ();
3339 exit (0);
3340 break;
3341 case QEMU_OPTION_soundhw:
3342 select_soundhw (optarg);
3343 break;
3344 case QEMU_OPTION_h:
3345 help(0);
3346 break;
3347 case QEMU_OPTION_version:
3348 version();
3349 exit(0);
3350 break;
3351 case QEMU_OPTION_m:
3352 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3353 optarg, true);
3354 if (!opts) {
3355 exit(EXIT_FAILURE);
3356 }
3357 break;
3358 #ifdef CONFIG_TPM
3359 case QEMU_OPTION_tpmdev:
3360 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3361 exit(1);
3362 }
3363 break;
3364 #endif
3365 case QEMU_OPTION_mempath:
3366 mem_path = optarg;
3367 break;
3368 case QEMU_OPTION_mem_prealloc:
3369 mem_prealloc = 1;
3370 break;
3371 case QEMU_OPTION_d:
3372 log_mask = optarg;
3373 break;
3374 case QEMU_OPTION_D:
3375 log_file = optarg;
3376 break;
3377 case QEMU_OPTION_DFILTER:
3378 qemu_set_dfilter_ranges(optarg, &error_fatal);
3379 break;
3380 case QEMU_OPTION_s:
3381 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3382 break;
3383 case QEMU_OPTION_gdb:
3384 add_device_config(DEV_GDB, optarg);
3385 break;
3386 case QEMU_OPTION_L:
3387 if (is_help_option(optarg)) {
3388 list_data_dirs = true;
3389 } else {
3390 qemu_add_data_dir(optarg);
3391 }
3392 break;
3393 case QEMU_OPTION_bios:
3394 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3395 &error_abort);
3396 break;
3397 case QEMU_OPTION_singlestep:
3398 singlestep = 1;
3399 break;
3400 case QEMU_OPTION_S:
3401 autostart = 0;
3402 break;
3403 case QEMU_OPTION_k:
3404 keyboard_layout = optarg;
3405 break;
3406 case QEMU_OPTION_localtime:
3407 rtc_utc = 0;
3408 break;
3409 case QEMU_OPTION_vga:
3410 vga_model = optarg;
3411 default_vga = 0;
3412 break;
3413 case QEMU_OPTION_g:
3414 {
3415 const char *p;
3416 int w, h, depth;
3417 p = optarg;
3418 w = strtol(p, (char **)&p, 10);
3419 if (w <= 0) {
3420 graphic_error:
3421 error_report("invalid resolution or depth");
3422 exit(1);
3423 }
3424 if (*p != 'x')
3425 goto graphic_error;
3426 p++;
3427 h = strtol(p, (char **)&p, 10);
3428 if (h <= 0)
3429 goto graphic_error;
3430 if (*p == 'x') {
3431 p++;
3432 depth = strtol(p, (char **)&p, 10);
3433 if (depth != 8 && depth != 15 && depth != 16 &&
3434 depth != 24 && depth != 32)
3435 goto graphic_error;
3436 } else if (*p == '\0') {
3437 depth = graphic_depth;
3438 } else {
3439 goto graphic_error;
3440 }
3441
3442 graphic_width = w;
3443 graphic_height = h;
3444 graphic_depth = depth;
3445 }
3446 break;
3447 case QEMU_OPTION_echr:
3448 {
3449 char *r;
3450 term_escape_char = strtol(optarg, &r, 0);
3451 if (r == optarg)
3452 printf("Bad argument to echr\n");
3453 break;
3454 }
3455 case QEMU_OPTION_monitor:
3456 default_monitor = 0;
3457 if (strncmp(optarg, "none", 4)) {
3458 monitor_parse(optarg, "readline", false);
3459 }
3460 break;
3461 case QEMU_OPTION_qmp:
3462 monitor_parse(optarg, "control", false);
3463 default_monitor = 0;
3464 break;
3465 case QEMU_OPTION_qmp_pretty:
3466 monitor_parse(optarg, "control", true);
3467 default_monitor = 0;
3468 break;
3469 case QEMU_OPTION_mon:
3470 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3471 true);
3472 if (!opts) {
3473 exit(1);
3474 }
3475 default_monitor = 0;
3476 break;
3477 case QEMU_OPTION_chardev:
3478 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3479 optarg, true);
3480 if (!opts) {
3481 exit(1);
3482 }
3483 break;
3484 case QEMU_OPTION_fsdev:
3485 olist = qemu_find_opts("fsdev");
3486 if (!olist) {
3487 error_report("fsdev support is disabled");
3488 exit(1);
3489 }
3490 opts = qemu_opts_parse_noisily(olist, optarg, true);
3491 if (!opts) {
3492 exit(1);
3493 }
3494 break;
3495 case QEMU_OPTION_virtfs: {
3496 QemuOpts *fsdev;
3497 QemuOpts *device;
3498 const char *writeout, *sock_fd, *socket, *path, *security_model;
3499
3500 olist = qemu_find_opts("virtfs");
3501 if (!olist) {
3502 error_report("virtfs support is disabled");
3503 exit(1);
3504 }
3505 opts = qemu_opts_parse_noisily(olist, optarg, true);
3506 if (!opts) {
3507 exit(1);
3508 }
3509
3510 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3511 qemu_opt_get(opts, "mount_tag") == NULL) {
3512 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3513 exit(1);
3514 }
3515 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3516 qemu_opts_id(opts) ?:
3517 qemu_opt_get(opts, "mount_tag"),
3518 1, NULL);
3519 if (!fsdev) {
3520 error_report("duplicate or invalid fsdev id: %s",
3521 qemu_opt_get(opts, "mount_tag"));
3522 exit(1);
3523 }
3524
3525 writeout = qemu_opt_get(opts, "writeout");
3526 if (writeout) {
3527 #ifdef CONFIG_SYNC_FILE_RANGE
3528 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3529 #else
3530 error_report("writeout=immediate not supported "
3531 "on this platform");
3532 exit(1);
3533 #endif
3534 }
3535 qemu_opt_set(fsdev, "fsdriver",
3536 qemu_opt_get(opts, "fsdriver"), &error_abort);
3537 path = qemu_opt_get(opts, "path");
3538 if (path) {
3539 qemu_opt_set(fsdev, "path", path, &error_abort);
3540 }
3541 security_model = qemu_opt_get(opts, "security_model");
3542 if (security_model) {
3543 qemu_opt_set(fsdev, "security_model", security_model,
3544 &error_abort);
3545 }
3546 socket = qemu_opt_get(opts, "socket");
3547 if (socket) {
3548 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3549 }
3550 sock_fd = qemu_opt_get(opts, "sock_fd");
3551 if (sock_fd) {
3552 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3553 }
3554
3555 qemu_opt_set_bool(fsdev, "readonly",
3556 qemu_opt_get_bool(opts, "readonly", 0),
3557 &error_abort);
3558 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3559 &error_abort);
3560 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3561 qemu_opt_set(device, "fsdev",
3562 qemu_opts_id(fsdev), &error_abort);
3563 qemu_opt_set(device, "mount_tag",
3564 qemu_opt_get(opts, "mount_tag"), &error_abort);
3565 break;
3566 }
3567 case QEMU_OPTION_virtfs_synth: {
3568 QemuOpts *fsdev;
3569 QemuOpts *device;
3570
3571 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3572 1, NULL);
3573 if (!fsdev) {
3574 error_report("duplicate option: %s", "virtfs_synth");
3575 exit(1);
3576 }
3577 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3578
3579 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3580 &error_abort);
3581 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3582 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3583 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3584 break;
3585 }
3586 case QEMU_OPTION_serial:
3587 add_device_config(DEV_SERIAL, optarg);
3588 default_serial = 0;
3589 if (strncmp(optarg, "mon:", 4) == 0) {
3590 default_monitor = 0;
3591 }
3592 break;
3593 case QEMU_OPTION_watchdog:
3594 if (watchdog) {
3595 error_report("only one watchdog option may be given");
3596 return 1;
3597 }
3598 watchdog = optarg;
3599 break;
3600 case QEMU_OPTION_watchdog_action:
3601 if (select_watchdog_action(optarg) == -1) {
3602 error_report("unknown -watchdog-action parameter");
3603 exit(1);
3604 }
3605 break;
3606 case QEMU_OPTION_virtiocon:
3607 add_device_config(DEV_VIRTCON, optarg);
3608 default_virtcon = 0;
3609 if (strncmp(optarg, "mon:", 4) == 0) {
3610 default_monitor = 0;
3611 }
3612 break;
3613 case QEMU_OPTION_parallel:
3614 add_device_config(DEV_PARALLEL, optarg);
3615 default_parallel = 0;
3616 if (strncmp(optarg, "mon:", 4) == 0) {
3617 default_monitor = 0;
3618 }
3619 break;
3620 case QEMU_OPTION_debugcon:
3621 add_device_config(DEV_DEBUGCON, optarg);
3622 break;
3623 case QEMU_OPTION_loadvm:
3624 loadvm = optarg;
3625 break;
3626 case QEMU_OPTION_full_screen:
3627 dpy.has_full_screen = true;
3628 dpy.full_screen = true;
3629 break;
3630 case QEMU_OPTION_no_frame:
3631 g_printerr("The -no-frame switch is deprecated, and will be\n"
3632 "removed in a future release.\n");
3633 no_frame = 1;
3634 break;
3635 case QEMU_OPTION_alt_grab:
3636 alt_grab = 1;
3637 break;
3638 case QEMU_OPTION_ctrl_grab:
3639 ctrl_grab = 1;
3640 break;
3641 case QEMU_OPTION_no_quit:
3642 dpy.has_window_close = true;
3643 dpy.window_close = false;
3644 break;
3645 case QEMU_OPTION_sdl:
3646 #ifdef CONFIG_SDL
3647 dpy.type = DISPLAY_TYPE_SDL;
3648 break;
3649 #else
3650 error_report("SDL support is disabled");
3651 exit(1);
3652 #endif
3653 case QEMU_OPTION_pidfile:
3654 pid_file = optarg;
3655 break;
3656 case QEMU_OPTION_win2k_hack:
3657 win2k_install_hack = 1;
3658 break;
3659 case QEMU_OPTION_rtc_td_hack: {
3660 static GlobalProperty slew_lost_ticks = {
3661 .driver = "mc146818rtc",
3662 .property = "lost_tick_policy",
3663 .value = "slew",
3664 };
3665
3666 qdev_prop_register_global(&slew_lost_ticks);
3667 break;
3668 }
3669 case QEMU_OPTION_acpitable:
3670 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3671 optarg, true);
3672 if (!opts) {
3673 exit(1);
3674 }
3675 acpi_table_add(opts, &error_fatal);
3676 break;
3677 case QEMU_OPTION_smbios:
3678 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3679 optarg, false);
3680 if (!opts) {
3681 exit(1);
3682 }
3683 smbios_entry_add(opts, &error_fatal);
3684 break;
3685 case QEMU_OPTION_fwcfg:
3686 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3687 optarg, true);
3688 if (opts == NULL) {
3689 exit(1);
3690 }
3691 break;
3692 case QEMU_OPTION_enable_kvm:
3693 olist = qemu_find_opts("machine");
3694 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3695 break;
3696 case QEMU_OPTION_enable_hax:
3697 olist = qemu_find_opts("machine");
3698 qemu_opts_parse_noisily(olist, "accel=hax", false);
3699 break;
3700 case QEMU_OPTION_M:
3701 case QEMU_OPTION_machine:
3702 olist = qemu_find_opts("machine");
3703 opts = qemu_opts_parse_noisily(olist, optarg, true);
3704 if (!opts) {
3705 exit(1);
3706 }
3707 break;
3708 case QEMU_OPTION_no_kvm:
3709 olist = qemu_find_opts("machine");
3710 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3711 break;
3712 case QEMU_OPTION_no_kvm_pit_reinjection: {
3713 static GlobalProperty kvm_pit_lost_tick_policy = {
3714 .driver = "kvm-pit",
3715 .property = "lost_tick_policy",
3716 .value = "discard",
3717 };
3718
3719 warn_report("deprecated, replaced by "
3720 "-global kvm-pit.lost_tick_policy=discard");
3721 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3722 break;
3723 }
3724 case QEMU_OPTION_accel:
3725 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3726 optarg, true);
3727 optarg = qemu_opt_get(accel_opts, "accel");
3728 if (!optarg || is_help_option(optarg)) {
3729 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3730 exit(0);
3731 }
3732 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3733 false, &error_abort);
3734 qemu_opt_set(opts, "accel", optarg, &error_abort);
3735 break;
3736 case QEMU_OPTION_usb:
3737 olist = qemu_find_opts("machine");
3738 qemu_opts_parse_noisily(olist, "usb=on", false);
3739 break;
3740 case QEMU_OPTION_usbdevice:
3741 error_report("'-usbdevice' is deprecated, please use "
3742 "'-device usb-...' instead");
3743 olist = qemu_find_opts("machine");
3744 qemu_opts_parse_noisily(olist, "usb=on", false);
3745 add_device_config(DEV_USB, optarg);
3746 break;
3747 case QEMU_OPTION_device:
3748 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3749 optarg, true)) {
3750 exit(1);
3751 }
3752 break;
3753 case QEMU_OPTION_smp:
3754 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3755 optarg, true)) {
3756 exit(1);
3757 }
3758 break;
3759 case QEMU_OPTION_vnc:
3760 vnc_parse(optarg, &error_fatal);
3761 break;
3762 case QEMU_OPTION_no_acpi:
3763 acpi_enabled = 0;
3764 break;
3765 case QEMU_OPTION_no_hpet:
3766 no_hpet = 1;
3767 break;
3768 case QEMU_OPTION_balloon:
3769 if (balloon_parse(optarg) < 0) {
3770 error_report("unknown -balloon argument %s", optarg);
3771 exit(1);
3772 }
3773 break;
3774 case QEMU_OPTION_no_reboot:
3775 no_reboot = 1;
3776 break;
3777 case QEMU_OPTION_no_shutdown:
3778 no_shutdown = 1;
3779 break;
3780 case QEMU_OPTION_show_cursor:
3781 cursor_hide = 0;
3782 break;
3783 case QEMU_OPTION_uuid:
3784 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3785 error_report("failed to parse UUID string: wrong format");
3786 exit(1);
3787 }
3788 qemu_uuid_set = true;
3789 break;
3790 case QEMU_OPTION_option_rom:
3791 if (nb_option_roms >= MAX_OPTION_ROMS) {
3792 error_report("too many option ROMs");
3793 exit(1);
3794 }
3795 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3796 optarg, true);
3797 if (!opts) {
3798 exit(1);
3799 }
3800 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3801 option_rom[nb_option_roms].bootindex =
3802 qemu_opt_get_number(opts, "bootindex", -1);
3803 if (!option_rom[nb_option_roms].name) {
3804 error_report("Option ROM file is not specified");
3805 exit(1);
3806 }
3807 nb_option_roms++;
3808 break;
3809 case QEMU_OPTION_semihosting:
3810 semihosting.enabled = true;
3811 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3812 break;
3813 case QEMU_OPTION_semihosting_config:
3814 semihosting.enabled = true;
3815 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3816 optarg, false);
3817 if (opts != NULL) {
3818 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3819 true);
3820 const char *target = qemu_opt_get(opts, "target");
3821 if (target != NULL) {
3822 if (strcmp("native", target) == 0) {
3823 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3824 } else if (strcmp("gdb", target) == 0) {
3825 semihosting.target = SEMIHOSTING_TARGET_GDB;
3826 } else if (strcmp("auto", target) == 0) {
3827 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3828 } else {
3829 error_report("unsupported semihosting-config %s",
3830 optarg);
3831 exit(1);
3832 }
3833 } else {
3834 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3835 }
3836 /* Set semihosting argument count and vector */
3837 qemu_opt_foreach(opts, add_semihosting_arg,
3838 &semihosting, NULL);
3839 } else {
3840 error_report("unsupported semihosting-config %s", optarg);
3841 exit(1);
3842 }
3843 break;
3844 case QEMU_OPTION_tdf:
3845 warn_report("ignoring deprecated option");
3846 break;
3847 case QEMU_OPTION_name:
3848 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3849 optarg, true);
3850 if (!opts) {
3851 exit(1);
3852 }
3853 break;
3854 case QEMU_OPTION_prom_env:
3855 if (nb_prom_envs >= MAX_PROM_ENVS) {
3856 error_report("too many prom variables");
3857 exit(1);
3858 }
3859 prom_envs[nb_prom_envs] = optarg;
3860 nb_prom_envs++;
3861 break;
3862 case QEMU_OPTION_old_param:
3863 old_param = 1;
3864 break;
3865 case QEMU_OPTION_clock:
3866 /* Clock options no longer exist. Keep this option for
3867 * backward compatibility.
3868 */
3869 break;
3870 case QEMU_OPTION_startdate:
3871 configure_rtc_date_offset(optarg, 1);
3872 break;
3873 case QEMU_OPTION_rtc:
3874 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3875 false);
3876 if (!opts) {
3877 exit(1);
3878 }
3879 configure_rtc(opts);
3880 break;
3881 case QEMU_OPTION_tb_size:
3882 #ifndef CONFIG_TCG
3883 error_report("TCG is disabled");
3884 exit(1);
3885 #endif
3886 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3887 error_report("Invalid argument to -tb-size");
3888 exit(1);
3889 }
3890 break;
3891 case QEMU_OPTION_icount:
3892 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3893 optarg, true);
3894 if (!icount_opts) {
3895 exit(1);
3896 }
3897 break;
3898 case QEMU_OPTION_incoming:
3899 if (!incoming) {
3900 runstate_set(RUN_STATE_INMIGRATE);
3901 }
3902 incoming = optarg;
3903 break;
3904 case QEMU_OPTION_only_migratable:
3905 /*
3906 * TODO: we can remove this option one day, and we
3907 * should all use:
3908 *
3909 * "-global migration.only-migratable=true"
3910 */
3911 qemu_global_option("migration.only-migratable=true");
3912 break;
3913 case QEMU_OPTION_nodefaults:
3914 has_defaults = 0;
3915 break;
3916 case QEMU_OPTION_xen_domid:
3917 if (!(xen_available())) {
3918 error_report("Option not supported for this target");
3919 exit(1);
3920 }
3921 xen_domid = atoi(optarg);
3922 break;
3923 case QEMU_OPTION_xen_create:
3924 if (!(xen_available())) {
3925 error_report("Option not supported for this target");
3926 exit(1);
3927 }
3928 xen_mode = XEN_CREATE;
3929 break;
3930 case QEMU_OPTION_xen_attach:
3931 if (!(xen_available())) {
3932 error_report("Option not supported for this target");
3933 exit(1);
3934 }
3935 xen_mode = XEN_ATTACH;
3936 break;
3937 case QEMU_OPTION_xen_domid_restrict:
3938 if (!(xen_available())) {
3939 error_report("Option not supported for this target");
3940 exit(1);
3941 }
3942 xen_domid_restrict = true;
3943 break;
3944 case QEMU_OPTION_trace:
3945 g_free(trace_file);
3946 trace_file = trace_opt_parse(optarg);
3947 break;
3948 case QEMU_OPTION_readconfig:
3949 {
3950 int ret = qemu_read_config_file(optarg);
3951 if (ret < 0) {
3952 error_report("read config %s: %s", optarg,
3953 strerror(-ret));
3954 exit(1);
3955 }
3956 break;
3957 }
3958 case QEMU_OPTION_spice:
3959 olist = qemu_find_opts("spice");
3960 if (!olist) {
3961 error_report("spice support is disabled");
3962 exit(1);
3963 }
3964 opts = qemu_opts_parse_noisily(olist, optarg, false);
3965 if (!opts) {
3966 exit(1);
3967 }
3968 display_remote++;
3969 break;
3970 case QEMU_OPTION_writeconfig:
3971 {
3972 FILE *fp;
3973 if (strcmp(optarg, "-") == 0) {
3974 fp = stdout;
3975 } else {
3976 fp = fopen(optarg, "w");
3977 if (fp == NULL) {
3978 error_report("open %s: %s", optarg,
3979 strerror(errno));
3980 exit(1);
3981 }
3982 }
3983 qemu_config_write(fp);
3984 if (fp != stdout) {
3985 fclose(fp);
3986 }
3987 break;
3988 }
3989 case QEMU_OPTION_qtest:
3990 qtest_chrdev = optarg;
3991 break;
3992 case QEMU_OPTION_qtest_log:
3993 qtest_log = optarg;
3994 break;
3995 case QEMU_OPTION_sandbox:
3996 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3997 optarg, true);
3998 if (!opts) {
3999 exit(1);
4000 }
4001 break;
4002 case QEMU_OPTION_add_fd:
4003 #ifndef _WIN32
4004 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4005 optarg, false);
4006 if (!opts) {
4007 exit(1);
4008 }
4009 #else
4010 error_report("File descriptor passing is disabled on this "
4011 "platform");
4012 exit(1);
4013 #endif
4014 break;
4015 case QEMU_OPTION_object:
4016 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4017 optarg, true);
4018 if (!opts) {
4019 exit(1);
4020 }
4021 break;
4022 case QEMU_OPTION_realtime:
4023 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4024 optarg, false);
4025 if (!opts) {
4026 exit(1);
4027 }
4028 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4029 break;
4030 case QEMU_OPTION_msg:
4031 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4032 false);
4033 if (!opts) {
4034 exit(1);
4035 }
4036 configure_msg(opts);
4037 break;
4038 case QEMU_OPTION_dump_vmstate:
4039 if (vmstate_dump_file) {
4040 error_report("only one '-dump-vmstate' "
4041 "option may be given");
4042 exit(1);
4043 }
4044 vmstate_dump_file = fopen(optarg, "w");
4045 if (vmstate_dump_file == NULL) {
4046 error_report("open %s: %s", optarg, strerror(errno));
4047 exit(1);
4048 }
4049 break;
4050 default:
4051 os_parse_cmd_args(popt->index, optarg);
4052 }
4053 }
4054 }
4055 /*
4056 * Clear error location left behind by the loop.
4057 * Best done right after the loop. Do not insert code here!
4058 */
4059 loc_set_none();
4060
4061 replay_configure(icount_opts);
4062
4063 machine_class = select_machine();
4064
4065 set_memory_options(&ram_slots, &maxram_size, machine_class);
4066
4067 os_daemonize();
4068 rcu_disable_atfork();
4069
4070 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4071 error_report("could not acquire pid file: %s", strerror(errno));
4072 exit(1);
4073 }
4074
4075 if (qemu_init_main_loop(&main_loop_err)) {
4076 error_report_err(main_loop_err);
4077 exit(1);
4078 }
4079
4080 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4081 parse_sandbox, NULL, NULL)) {
4082 exit(1);
4083 }
4084
4085 if (qemu_opts_foreach(qemu_find_opts("name"),
4086 parse_name, NULL, NULL)) {
4087 exit(1);
4088 }
4089
4090 #ifndef _WIN32
4091 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4092 parse_add_fd, NULL, NULL)) {
4093 exit(1);
4094 }
4095
4096 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4097 cleanup_add_fd, NULL, NULL)) {
4098 exit(1);
4099 }
4100 #endif
4101
4102 current_machine = MACHINE(object_new(object_class_get_name(
4103 OBJECT_CLASS(machine_class))));
4104 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4105 exit(0);
4106 }
4107 object_property_add_child(object_get_root(), "machine",
4108 OBJECT(current_machine), &error_abort);
4109
4110 if (machine_class->minimum_page_bits) {
4111 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4112 /* This would be a board error: specifying a minimum smaller than
4113 * a target's compile-time fixed setting.
4114 */
4115 g_assert_not_reached();
4116 }
4117 }
4118
4119 cpu_exec_init_all();
4120
4121 if (machine_class->hw_version) {
4122 qemu_set_hw_version(machine_class->hw_version);
4123 }
4124
4125 if (cpu_model && is_help_option(cpu_model)) {
4126 list_cpus(stdout, &fprintf, cpu_model);
4127 exit(0);
4128 }
4129
4130 if (!trace_init_backends()) {
4131 exit(1);
4132 }
4133 trace_init_file(trace_file);
4134
4135 /* Open the logfile at this point and set the log mask if necessary.
4136 */
4137 if (log_file) {
4138 qemu_set_log_filename(log_file, &error_fatal);
4139 }
4140
4141 if (log_mask) {
4142 int mask;
4143 mask = qemu_str_to_log_mask(log_mask);
4144 if (!mask) {
4145 qemu_print_log_usage(stdout);
4146 exit(1);
4147 }
4148 qemu_set_log(mask);
4149 } else {
4150 qemu_set_log(0);
4151 }
4152
4153 /* add configured firmware directories */
4154 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4155 for (i = 0; dirs[i] != NULL; i++) {
4156 qemu_add_data_dir(dirs[i]);
4157 }
4158 g_strfreev(dirs);
4159
4160 /* try to find datadir relative to the executable path */
4161 dir = os_find_datadir();
4162 qemu_add_data_dir(dir);
4163 g_free(dir);
4164
4165 /* add the datadir specified when building */
4166 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4167
4168 /* -L help lists the data directories and exits. */
4169 if (list_data_dirs) {
4170 for (i = 0; i < data_dir_idx; i++) {
4171 printf("%s\n", data_dir[i]);
4172 }
4173 exit(0);
4174 }
4175
4176 /* machine_class: default to UP */
4177 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4178 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4179 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4180
4181 /* default to machine_class->default_cpus */
4182 smp_cpus = machine_class->default_cpus;
4183 max_cpus = machine_class->default_cpus;
4184
4185 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4186
4187 /* sanity-check smp_cpus and max_cpus against machine_class */
4188 if (smp_cpus < machine_class->min_cpus) {
4189 error_report("Invalid SMP CPUs %d. The min CPUs "
4190 "supported by machine '%s' is %d", smp_cpus,
4191 machine_class->name, machine_class->min_cpus);
4192 exit(1);
4193 }
4194 if (max_cpus > machine_class->max_cpus) {
4195 error_report("Invalid SMP CPUs %d. The max CPUs "
4196 "supported by machine '%s' is %d", max_cpus,
4197 machine_class->name, machine_class->max_cpus);
4198 exit(1);
4199 }
4200
4201 /*
4202 * Get the default machine options from the machine if it is not already
4203 * specified either by the configuration file or by the command line.
4204 */
4205 if (machine_class->default_machine_opts) {
4206 qemu_opts_set_defaults(qemu_find_opts("machine"),
4207 machine_class->default_machine_opts, 0);
4208 }
4209
4210 qemu_opts_foreach(qemu_find_opts("device"),
4211 default_driver_check, NULL, NULL);
4212 qemu_opts_foreach(qemu_find_opts("global"),
4213 default_driver_check, NULL, NULL);
4214
4215 if (!vga_model && !default_vga) {
4216 vga_interface_type = VGA_DEVICE;
4217 }
4218 if (!has_defaults || machine_class->no_serial) {
4219 default_serial = 0;
4220 }
4221 if (!has_defaults || machine_class->no_parallel) {
4222 default_parallel = 0;
4223 }
4224 if (!has_defaults || !machine_class->use_virtcon) {
4225 default_virtcon = 0;
4226 }
4227 if (!has_defaults || !machine_class->use_sclp) {
4228 default_sclp = 0;
4229 }
4230 if (!has_defaults || machine_class->no_floppy) {
4231 default_floppy = 0;
4232 }
4233 if (!has_defaults || machine_class->no_cdrom) {
4234 default_cdrom = 0;
4235 }
4236 if (!has_defaults || machine_class->no_sdcard) {
4237 default_sdcard = 0;
4238 }
4239 if (!has_defaults) {
4240 default_monitor = 0;
4241 default_net = 0;
4242 default_vga = 0;
4243 }
4244
4245 if (is_daemonized()) {
4246 /* According to documentation and historically, -nographic redirects
4247 * serial port, parallel port and monitor to stdio, which does not work
4248 * with -daemonize. We can redirect these to null instead, but since
4249 * -nographic is legacy, let's just error out.
4250 * We disallow -nographic only if all other ports are not redirected
4251 * explicitly, to not break existing legacy setups which uses
4252 * -nographic _and_ redirects all ports explicitly - this is valid
4253 * usage, -nographic is just a no-op in this case.
4254 */
4255 if (nographic
4256 && (default_parallel || default_serial
4257 || default_monitor || default_virtcon)) {
4258 error_report("-nographic cannot be used with -daemonize");
4259 exit(1);
4260 }
4261 #ifdef CONFIG_CURSES
4262 if (dpy.type == DISPLAY_TYPE_CURSES) {
4263 error_report("curses display cannot be used with -daemonize");
4264 exit(1);
4265 }
4266 #endif
4267 }
4268
4269 if (nographic) {
4270 if (default_parallel)
4271 add_device_config(DEV_PARALLEL, "null");
4272 if (default_serial && default_monitor) {
4273 add_device_config(DEV_SERIAL, "mon:stdio");
4274 } else if (default_virtcon && default_monitor) {
4275 add_device_config(DEV_VIRTCON, "mon:stdio");
4276 } else if (default_sclp && default_monitor) {
4277 add_device_config(DEV_SCLP, "mon:stdio");
4278 } else {
4279 if (default_serial)
4280 add_device_config(DEV_SERIAL, "stdio");
4281 if (default_virtcon)
4282 add_device_config(DEV_VIRTCON, "stdio");
4283 if (default_sclp) {
4284 add_device_config(DEV_SCLP, "stdio");
4285 }
4286 if (default_monitor)
4287 monitor_parse("stdio", "readline", false);
4288 }
4289 } else {
4290 if (default_serial)
4291 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4292 if (default_parallel)
4293 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4294 if (default_monitor)
4295 monitor_parse("vc:80Cx24C", "readline", false);
4296 if (default_virtcon)
4297 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4298 if (default_sclp) {
4299 add_device_config(DEV_SCLP, "vc:80Cx24C");
4300 }
4301 }
4302
4303 #if defined(CONFIG_VNC)
4304 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4305 display_remote++;
4306 }
4307 #endif
4308 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4309 #if defined(CONFIG_GTK)
4310 dpy.type = DISPLAY_TYPE_GTK;
4311 #elif defined(CONFIG_SDL)
4312 dpy.type = DISPLAY_TYPE_SDL;
4313 #elif defined(CONFIG_COCOA)
4314 dpy.type = DISPLAY_TYPE_COCOA;
4315 #elif defined(CONFIG_VNC)
4316 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4317 #else
4318 dpy.type = DISPLAY_TYPE_NONE;
4319 #endif
4320 }
4321
4322 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4323 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4324 "for SDL, ignoring option");
4325 }
4326 if (dpy.has_window_close &&
4327 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4328 error_report("-no-quit is only valid for GTK and SDL, "
4329 "ignoring option");
4330 }
4331
4332 if (dpy.type == DISPLAY_TYPE_GTK) {
4333 early_gtk_display_init(&dpy);
4334 }
4335
4336 if (dpy.type == DISPLAY_TYPE_SDL) {
4337 sdl_display_early_init(&dpy);
4338 }
4339
4340 qemu_console_early_init();
4341
4342 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4343 #if defined(CONFIG_OPENGL)
4344 error_report("OpenGL is not supported by the display");
4345 #else
4346 error_report("OpenGL support is disabled");
4347 #endif
4348 exit(1);
4349 }
4350
4351 page_size_init();
4352 socket_init();
4353
4354 if (qemu_opts_foreach(qemu_find_opts("object"),
4355 user_creatable_add_opts_foreach,
4356 object_create_initial, NULL)) {
4357 exit(1);
4358 }
4359
4360 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4361 chardev_init_func, NULL, NULL)) {
4362 exit(1);
4363 }
4364
4365 #ifdef CONFIG_VIRTFS
4366 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4367 fsdev_init_func, NULL, NULL)) {
4368 exit(1);
4369 }
4370 #endif
4371
4372 if (qemu_opts_foreach(qemu_find_opts("device"),
4373 device_help_func, NULL, NULL)) {
4374 exit(0);
4375 }
4376
4377 machine_opts = qemu_get_machine_opts();
4378 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4379 NULL)) {
4380 object_unref(OBJECT(current_machine));
4381 exit(1);
4382 }
4383
4384 configure_accelerator(current_machine);
4385
4386 /*
4387 * Register all the global properties, including accel properties,
4388 * machine properties, and user-specified ones.
4389 */
4390 register_global_properties(current_machine);
4391
4392 /*
4393 * Migration object can only be created after global properties
4394 * are applied correctly.
4395 */
4396 migration_object_init();
4397
4398 if (qtest_chrdev) {
4399 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4400 }
4401
4402 machine_opts = qemu_get_machine_opts();
4403 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4404 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4405 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4406 bios_name = qemu_opt_get(machine_opts, "firmware");
4407
4408 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4409 if (opts) {
4410 boot_order = qemu_opt_get(opts, "order");
4411 if (boot_order) {
4412 validate_bootdevices(boot_order, &error_fatal);
4413 }
4414
4415 boot_once = qemu_opt_get(opts, "once");
4416 if (boot_once) {
4417 validate_bootdevices(boot_once, &error_fatal);
4418 }
4419
4420 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4421 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4422 }
4423
4424 if (!boot_order) {
4425 boot_order = machine_class->default_boot_order;
4426 }
4427
4428 if (!kernel_cmdline) {
4429 kernel_cmdline = "";
4430 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4431 }
4432
4433 linux_boot = (kernel_filename != NULL);
4434
4435 if (!linux_boot && *kernel_cmdline != '\0') {
4436 error_report("-append only allowed with -kernel option");
4437 exit(1);
4438 }
4439
4440 if (!linux_boot && initrd_filename != NULL) {
4441 error_report("-initrd only allowed with -kernel option");
4442 exit(1);
4443 }
4444
4445 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4446 /* fall back to the -kernel/-append */
4447 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4448 }
4449
4450 os_set_line_buffering();
4451
4452 /* spice needs the timers to be initialized by this point */
4453 qemu_spice_init();
4454
4455 cpu_ticks_init();
4456 if (icount_opts) {
4457 if (!tcg_enabled()) {
4458 error_report("-icount is not allowed with hardware virtualization");
4459 exit(1);
4460 }
4461 configure_icount(icount_opts, &error_abort);
4462 qemu_opts_del(icount_opts);
4463 }
4464
4465 if (tcg_enabled()) {
4466 qemu_tcg_configure(accel_opts, &error_fatal);
4467 }
4468
4469 if (default_net) {
4470 QemuOptsList *net = qemu_find_opts("net");
4471 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4472 #ifdef CONFIG_SLIRP
4473 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4474 #endif
4475 }
4476
4477 colo_info_init();
4478
4479 if (net_init_clients() < 0) {
4480 exit(1);
4481 }
4482
4483 if (qemu_opts_foreach(qemu_find_opts("object"),
4484 user_creatable_add_opts_foreach,
4485 object_create_delayed, NULL)) {
4486 exit(1);
4487 }
4488
4489 if (tpm_init() < 0) {
4490 exit(1);
4491 }
4492
4493 /* init the bluetooth world */
4494 if (foreach_device_config(DEV_BT, bt_parse))
4495 exit(1);
4496
4497 if (!xen_enabled()) {
4498 /* On 32-bit hosts, QEMU is limited by virtual address space */
4499 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4500 error_report("at most 2047 MB RAM can be simulated");
4501 exit(1);
4502 }
4503 }
4504
4505 blk_mig_init();
4506 ram_mig_init();
4507
4508 /* If the currently selected machine wishes to override the units-per-bus
4509 * property of its default HBA interface type, do so now. */
4510 if (machine_class->units_per_default_bus) {
4511 override_max_devs(machine_class->block_default_type,
4512 machine_class->units_per_default_bus);
4513 }
4514
4515 /* open the virtual block devices */
4516 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4517 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4518
4519 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4520 loc_push_restore(&bdo->loc);
4521 qmp_blockdev_add(bdo->bdo, &error_fatal);
4522 loc_pop(&bdo->loc);
4523 qapi_free_BlockdevOptions(bdo->bdo);
4524 g_free(bdo);
4525 }
4526 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4527 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4528 NULL, NULL);
4529 }
4530 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4531 &machine_class->block_default_type, NULL)) {
4532 exit(1);
4533 }
4534
4535 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4536 CDROM_OPTS);
4537 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4538 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4539
4540 if (qemu_opts_foreach(qemu_find_opts("mon"),
4541 mon_init_func, NULL, NULL)) {
4542 exit(1);
4543 }
4544
4545 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4546 exit(1);
4547 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4548 exit(1);
4549 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4550 exit(1);
4551 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4552 exit(1);
4553 }
4554 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4555 exit(1);
4556
4557 /* If no default VGA is requested, the default is "none". */
4558 if (default_vga) {
4559 if (machine_class->default_display) {
4560 vga_model = machine_class->default_display;
4561 } else if (vga_interface_available(VGA_CIRRUS)) {
4562 vga_model = "cirrus";
4563 } else if (vga_interface_available(VGA_STD)) {
4564 vga_model = "std";
4565 }
4566 }
4567 if (vga_model) {
4568 select_vgahw(vga_model);
4569 }
4570
4571 if (watchdog) {
4572 i = select_watchdog(watchdog);
4573 if (i > 0)
4574 exit (i == 1 ? 1 : 0);
4575 }
4576
4577 /* This checkpoint is required by replay to separate prior clock
4578 reading from the other reads, because timer polling functions query
4579 clock values from the log. */
4580 replay_checkpoint(CHECKPOINT_INIT);
4581 qdev_machine_init();
4582
4583 current_machine->ram_size = ram_size;
4584 current_machine->maxram_size = maxram_size;
4585 current_machine->ram_slots = ram_slots;
4586 current_machine->boot_order = boot_order;
4587 current_machine->cpu_model = cpu_model;
4588
4589 /* parse features once if machine provides default cpu_type */
4590 if (machine_class->default_cpu_type) {
4591 current_machine->cpu_type = machine_class->default_cpu_type;
4592 if (cpu_model) {
4593 current_machine->cpu_type =
4594 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4595 }
4596 }
4597 parse_numa_opts(current_machine);
4598
4599 machine_run_board_init(current_machine);
4600
4601 realtime_init();
4602
4603 soundhw_init();
4604
4605 if (hax_enabled()) {
4606 hax_sync_vcpus();
4607 }
4608
4609 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4610 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4611 exit(1);
4612 }
4613
4614 /* init USB devices */
4615 if (machine_usb(current_machine)) {
4616 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4617 exit(1);
4618 }
4619
4620 /* Check if IGD GFX passthrough. */
4621 igd_gfx_passthru();
4622
4623 /* init generic devices */
4624 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4625 if (qemu_opts_foreach(qemu_find_opts("device"),
4626 device_init_func, NULL, NULL)) {
4627 exit(1);
4628 }
4629
4630 cpu_synchronize_all_post_init();
4631
4632 rom_reset_order_override();
4633
4634 /*
4635 * Create frontends for -drive if=scsi leftovers.
4636 * Normally, frontends for -drive get created by machine
4637 * initialization for onboard SCSI HBAs. However, we create a few
4638 * more ever since SCSI qdevification, but this is pretty much an
4639 * implementation accident, and deprecated.
4640 */
4641 scsi_legacy_handle_cmdline();
4642
4643 /* Did we create any drives that we failed to create a device for? */
4644 drive_check_orphaned();
4645
4646 /* Don't warn about the default network setup that you get if
4647 * no command line -net or -netdev options are specified. There
4648 * are two cases that we would otherwise complain about:
4649 * (1) board doesn't support a NIC but the implicit "-net nic"
4650 * requested one
4651 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4652 * sets up a nic that isn't connected to anything.
4653 */
4654 if (!default_net) {
4655 net_check_clients();
4656 }
4657
4658
4659 if (boot_once) {
4660 qemu_boot_set(boot_once, &error_fatal);
4661 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4662 }
4663
4664 ds = init_displaystate();
4665
4666 /* init local displays */
4667 switch (dpy.type) {
4668 case DISPLAY_TYPE_CURSES:
4669 curses_display_init(ds, &dpy);
4670 break;
4671 case DISPLAY_TYPE_SDL:
4672 sdl_display_init(ds, &dpy);
4673 break;
4674 case DISPLAY_TYPE_COCOA:
4675 cocoa_display_init(ds, &dpy);
4676 break;
4677 case DISPLAY_TYPE_GTK:
4678 gtk_display_init(ds, &dpy);
4679 break;
4680 default:
4681 break;
4682 }
4683
4684 /* must be after terminal init, SDL library changes signal handlers */
4685 os_setup_signal_handling();
4686
4687 /* init remote displays */
4688 #ifdef CONFIG_VNC
4689 qemu_opts_foreach(qemu_find_opts("vnc"),
4690 vnc_init_func, NULL, NULL);
4691 #endif
4692
4693 if (using_spice) {
4694 qemu_spice_display_init();
4695 }
4696
4697 #ifdef CONFIG_OPENGL_DMABUF
4698 if (dpy.type == DISPLAY_TYPE_EGL_HEADLESS) {
4699 egl_headless_init(&dpy);
4700 }
4701 #endif
4702
4703 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4704 exit(1);
4705 }
4706
4707 qdev_machine_creation_done();
4708
4709 /* TODO: once all bus devices are qdevified, this should be done
4710 * when bus is created by qdev.c */
4711 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4712 qemu_run_machine_init_done_notifiers();
4713
4714 if (rom_check_and_register_reset() != 0) {
4715 error_report("rom check and register reset failed");
4716 exit(1);
4717 }
4718
4719 replay_start();
4720
4721 /* This checkpoint is required by replay to separate prior clock
4722 reading from the other reads, because timer polling functions query
4723 clock values from the log. */
4724 replay_checkpoint(CHECKPOINT_RESET);
4725 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4726 register_global_state();
4727 if (replay_mode != REPLAY_MODE_NONE) {
4728 replay_vmstate_init();
4729 } else if (loadvm) {
4730 Error *local_err = NULL;
4731 if (load_snapshot(loadvm, &local_err) < 0) {
4732 error_report_err(local_err);
4733 autostart = 0;
4734 }
4735 }
4736
4737 qdev_prop_check_globals();
4738 if (vmstate_dump_file) {
4739 /* dump and exit */
4740 dump_vmstate_json_to_file(vmstate_dump_file);
4741 return 0;
4742 }
4743
4744 if (incoming) {
4745 Error *local_err = NULL;
4746 qemu_start_incoming_migration(incoming, &local_err);
4747 if (local_err) {
4748 error_reportf_err(local_err, "-incoming %s: ", incoming);
4749 exit(1);
4750 }
4751 } else if (autostart) {
4752 vm_start();
4753 }
4754
4755 os_setup_post();
4756
4757 main_loop();
4758 replay_disable_events();
4759
4760 /* The ordering of the following is delicate. Stop vcpus to prevent new
4761 * I/O requests being queued by the guest. Then stop IOThreads (this
4762 * includes a drain operation and completes all request processing). At
4763 * this point emulated devices are still associated with their IOThreads
4764 * (if any) but no longer have any work to do. Only then can we close
4765 * block devices safely because we know there is no more I/O coming.
4766 */
4767 pause_all_vcpus();
4768 iothread_stop_all();
4769 bdrv_close_all();
4770
4771 res_free();
4772
4773 /* vhost-user must be cleaned up before chardevs. */
4774 tpm_cleanup();
4775 net_cleanup();
4776 audio_cleanup();
4777 monitor_cleanup();
4778 qemu_chr_cleanup();
4779 user_creatable_cleanup();
4780 migration_object_finalize();
4781 /* TODO: unref root container, check all devices are ok */
4782
4783 return 0;
4784 }
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