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1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
31
32 #ifdef CONFIG_SECCOMP
33 #include <sys/prctl.h>
34 #include "sysemu/seccomp.h"
35 #endif
36
37 #ifdef CONFIG_SDL
38 #if defined(__APPLE__) || defined(main)
39 #include <SDL.h>
40 int qemu_main(int argc, char **argv, char **envp);
41 int main(int argc, char **argv)
42 {
43 return qemu_main(argc, argv, NULL);
44 }
45 #undef main
46 #define main qemu_main
47 #endif
48 #endif /* CONFIG_SDL */
49
50 #ifdef CONFIG_COCOA
51 #undef main
52 #define main qemu_main
53 #endif /* CONFIG_COCOA */
54
55
56 #include "qemu/error-report.h"
57 #include "qemu/sockets.h"
58 #include "hw/hw.h"
59 #include "hw/boards.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "hw/bt.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/smbios/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
70 #include "hw/qdev.h"
71 #include "hw/loader.h"
72 #include "monitor/qdev.h"
73 #include "sysemu/bt.h"
74 #include "net/net.h"
75 #include "net/slirp.h"
76 #include "monitor/monitor.h"
77 #include "ui/console.h"
78 #include "ui/input.h"
79 #include "sysemu/sysemu.h"
80 #include "sysemu/numa.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "chardev/char.h"
84 #include "qemu/bitmap.h"
85 #include "qemu/log.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/misc.h"
89 #include "migration/snapshot.h"
90 #include "migration/global_state.h"
91 #include "sysemu/tpm.h"
92 #include "sysemu/dma.h"
93 #include "hw/audio/soundhw.h"
94 #include "audio/audio.h"
95 #include "sysemu/cpus.h"
96 #include "migration/colo.h"
97 #include "sysemu/kvm.h"
98 #include "sysemu/hax.h"
99 #include "qapi/qobject-input-visitor.h"
100 #include "qapi-visit.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qmp-commands.h"
105 #include "qemu/main-loop.h"
106 #ifdef CONFIG_VIRTFS
107 #include "fsdev/qemu-fsdev.h"
108 #endif
109 #include "sysemu/qtest.h"
110
111 #include "disas/disas.h"
112
113
114 #include "slirp/libslirp.h"
115
116 #include "trace-root.h"
117 #include "trace/control.h"
118 #include "qemu/queue.h"
119 #include "sysemu/arch_init.h"
120
121 #include "ui/qemu-spice.h"
122 #include "qapi/string-input-visitor.h"
123 #include "qapi/opts-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "qapi-event.h"
126 #include "exec/semihost.h"
127 #include "crypto/init.h"
128 #include "sysemu/replay.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133 #define MAX_SCLP_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int 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");
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, "\nHV 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 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1763 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1764 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1765 info->u.s390.core,
1766 S390CrashReason_str(info->u.s390.reason),
1767 info->u.s390.psw_mask,
1768 info->u.s390.psw_addr);
1769 }
1770 qapi_free_GuestPanicInformation(info);
1771 }
1772 }
1773
1774 void qemu_system_reset_request(ShutdownCause reason)
1775 {
1776 if (no_reboot) {
1777 shutdown_requested = reason;
1778 } else {
1779 reset_requested = reason;
1780 }
1781 cpu_stop_current();
1782 qemu_notify_event();
1783 }
1784
1785 static void qemu_system_suspend(void)
1786 {
1787 pause_all_vcpus();
1788 notifier_list_notify(&suspend_notifiers, NULL);
1789 runstate_set(RUN_STATE_SUSPENDED);
1790 qapi_event_send_suspend(&error_abort);
1791 }
1792
1793 void qemu_system_suspend_request(void)
1794 {
1795 if (runstate_check(RUN_STATE_SUSPENDED)) {
1796 return;
1797 }
1798 suspend_requested = 1;
1799 cpu_stop_current();
1800 qemu_notify_event();
1801 }
1802
1803 void qemu_register_suspend_notifier(Notifier *notifier)
1804 {
1805 notifier_list_add(&suspend_notifiers, notifier);
1806 }
1807
1808 void qemu_system_wakeup_request(WakeupReason reason)
1809 {
1810 trace_system_wakeup_request(reason);
1811
1812 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1813 return;
1814 }
1815 if (!(wakeup_reason_mask & (1 << reason))) {
1816 return;
1817 }
1818 runstate_set(RUN_STATE_RUNNING);
1819 wakeup_reason = reason;
1820 qemu_notify_event();
1821 }
1822
1823 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1824 {
1825 if (enabled) {
1826 wakeup_reason_mask |= (1 << reason);
1827 } else {
1828 wakeup_reason_mask &= ~(1 << reason);
1829 }
1830 }
1831
1832 void qemu_register_wakeup_notifier(Notifier *notifier)
1833 {
1834 notifier_list_add(&wakeup_notifiers, notifier);
1835 }
1836
1837 void qemu_system_killed(int signal, pid_t pid)
1838 {
1839 shutdown_signal = signal;
1840 shutdown_pid = pid;
1841 no_shutdown = 0;
1842
1843 /* Cannot call qemu_system_shutdown_request directly because
1844 * we are in a signal handler.
1845 */
1846 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1847 qemu_notify_event();
1848 }
1849
1850 void qemu_system_shutdown_request(ShutdownCause reason)
1851 {
1852 trace_qemu_system_shutdown_request(reason);
1853 replay_shutdown_request(reason);
1854 shutdown_requested = reason;
1855 qemu_notify_event();
1856 }
1857
1858 static void qemu_system_powerdown(void)
1859 {
1860 qapi_event_send_powerdown(&error_abort);
1861 notifier_list_notify(&powerdown_notifiers, NULL);
1862 }
1863
1864 void qemu_system_powerdown_request(void)
1865 {
1866 trace_qemu_system_powerdown_request();
1867 powerdown_requested = 1;
1868 qemu_notify_event();
1869 }
1870
1871 void qemu_register_powerdown_notifier(Notifier *notifier)
1872 {
1873 notifier_list_add(&powerdown_notifiers, notifier);
1874 }
1875
1876 void qemu_system_debug_request(void)
1877 {
1878 debug_requested = 1;
1879 qemu_notify_event();
1880 }
1881
1882 static bool main_loop_should_exit(void)
1883 {
1884 RunState r;
1885 ShutdownCause request;
1886
1887 if (qemu_debug_requested()) {
1888 vm_stop(RUN_STATE_DEBUG);
1889 }
1890 if (qemu_suspend_requested()) {
1891 qemu_system_suspend();
1892 }
1893 request = qemu_shutdown_requested();
1894 if (request) {
1895 qemu_kill_report();
1896 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1897 &error_abort);
1898 if (no_shutdown) {
1899 vm_stop(RUN_STATE_SHUTDOWN);
1900 } else {
1901 return true;
1902 }
1903 }
1904 request = qemu_reset_requested();
1905 if (request) {
1906 pause_all_vcpus();
1907 qemu_system_reset(request);
1908 resume_all_vcpus();
1909 if (!runstate_check(RUN_STATE_RUNNING) &&
1910 !runstate_check(RUN_STATE_INMIGRATE)) {
1911 runstate_set(RUN_STATE_PRELAUNCH);
1912 }
1913 }
1914 if (qemu_wakeup_requested()) {
1915 pause_all_vcpus();
1916 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1917 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1918 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1919 resume_all_vcpus();
1920 qapi_event_send_wakeup(&error_abort);
1921 }
1922 if (qemu_powerdown_requested()) {
1923 qemu_system_powerdown();
1924 }
1925 if (qemu_vmstop_requested(&r)) {
1926 vm_stop(r);
1927 }
1928 return false;
1929 }
1930
1931 static void main_loop(void)
1932 {
1933 #ifdef CONFIG_PROFILER
1934 int64_t ti;
1935 #endif
1936 do {
1937 #ifdef CONFIG_PROFILER
1938 ti = profile_getclock();
1939 #endif
1940 main_loop_wait(false);
1941 #ifdef CONFIG_PROFILER
1942 dev_time += profile_getclock() - ti;
1943 #endif
1944 } while (!main_loop_should_exit());
1945 }
1946
1947 static void version(void)
1948 {
1949 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1950 QEMU_COPYRIGHT "\n");
1951 }
1952
1953 static void help(int exitcode)
1954 {
1955 version();
1956 printf("usage: %s [options] [disk_image]\n\n"
1957 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1958 error_get_progname());
1959
1960 #define QEMU_OPTIONS_GENERATE_HELP
1961 #include "qemu-options-wrapper.h"
1962
1963 printf("\nDuring emulation, the following keys are useful:\n"
1964 "ctrl-alt-f toggle full screen\n"
1965 "ctrl-alt-n switch to virtual console 'n'\n"
1966 "ctrl-alt toggle mouse and keyboard grab\n"
1967 "\n"
1968 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1969 "\n"
1970 QEMU_HELP_BOTTOM "\n");
1971
1972 exit(exitcode);
1973 }
1974
1975 #define HAS_ARG 0x0001
1976
1977 typedef struct QEMUOption {
1978 const char *name;
1979 int flags;
1980 int index;
1981 uint32_t arch_mask;
1982 } QEMUOption;
1983
1984 static const QEMUOption qemu_options[] = {
1985 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1986 #define QEMU_OPTIONS_GENERATE_OPTIONS
1987 #include "qemu-options-wrapper.h"
1988 { NULL },
1989 };
1990
1991 typedef struct VGAInterfaceInfo {
1992 const char *opt_name; /* option name */
1993 const char *name; /* human-readable name */
1994 /* Class names indicating that support is available.
1995 * If no class is specified, the interface is always available */
1996 const char *class_names[2];
1997 } VGAInterfaceInfo;
1998
1999 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2000 [VGA_NONE] = {
2001 .opt_name = "none",
2002 },
2003 [VGA_STD] = {
2004 .opt_name = "std",
2005 .name = "standard VGA",
2006 .class_names = { "VGA", "isa-vga" },
2007 },
2008 [VGA_CIRRUS] = {
2009 .opt_name = "cirrus",
2010 .name = "Cirrus VGA",
2011 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2012 },
2013 [VGA_VMWARE] = {
2014 .opt_name = "vmware",
2015 .name = "VMWare SVGA",
2016 .class_names = { "vmware-svga" },
2017 },
2018 [VGA_VIRTIO] = {
2019 .opt_name = "virtio",
2020 .name = "Virtio VGA",
2021 .class_names = { "virtio-vga" },
2022 },
2023 [VGA_QXL] = {
2024 .opt_name = "qxl",
2025 .name = "QXL VGA",
2026 .class_names = { "qxl-vga" },
2027 },
2028 [VGA_TCX] = {
2029 .opt_name = "tcx",
2030 .name = "TCX framebuffer",
2031 .class_names = { "SUNW,tcx" },
2032 },
2033 [VGA_CG3] = {
2034 .opt_name = "cg3",
2035 .name = "CG3 framebuffer",
2036 .class_names = { "cgthree" },
2037 },
2038 [VGA_XENFB] = {
2039 .opt_name = "xenfb",
2040 },
2041 };
2042
2043 static bool vga_interface_available(VGAInterfaceType t)
2044 {
2045 VGAInterfaceInfo *ti = &vga_interfaces[t];
2046
2047 assert(t < VGA_TYPE_MAX);
2048 return !ti->class_names[0] ||
2049 object_class_by_name(ti->class_names[0]) ||
2050 object_class_by_name(ti->class_names[1]);
2051 }
2052
2053 static void select_vgahw(const char *p)
2054 {
2055 const char *opts;
2056 int t;
2057
2058 assert(vga_interface_type == VGA_NONE);
2059 for (t = 0; t < VGA_TYPE_MAX; t++) {
2060 VGAInterfaceInfo *ti = &vga_interfaces[t];
2061 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2062 if (!vga_interface_available(t)) {
2063 error_report("%s not available", ti->name);
2064 exit(1);
2065 }
2066 vga_interface_type = t;
2067 break;
2068 }
2069 }
2070 if (t == VGA_TYPE_MAX) {
2071 invalid_vga:
2072 error_report("unknown vga type: %s", p);
2073 exit(1);
2074 }
2075 while (*opts) {
2076 const char *nextopt;
2077
2078 if (strstart(opts, ",retrace=", &nextopt)) {
2079 opts = nextopt;
2080 if (strstart(opts, "dumb", &nextopt))
2081 vga_retrace_method = VGA_RETRACE_DUMB;
2082 else if (strstart(opts, "precise", &nextopt))
2083 vga_retrace_method = VGA_RETRACE_PRECISE;
2084 else goto invalid_vga;
2085 } else goto invalid_vga;
2086 opts = nextopt;
2087 }
2088 }
2089
2090 static void parse_display(const char *p)
2091 {
2092 const char *opts;
2093
2094 if (strstart(p, "sdl", &opts)) {
2095 dpy.type = DISPLAY_TYPE_SDL;
2096 while (*opts) {
2097 const char *nextopt;
2098
2099 if (strstart(opts, ",frame=", &nextopt)) {
2100 g_printerr("The frame= sdl option is deprecated, and will be\n"
2101 "removed in a future release.\n");
2102 opts = nextopt;
2103 if (strstart(opts, "on", &nextopt)) {
2104 no_frame = 0;
2105 } else if (strstart(opts, "off", &nextopt)) {
2106 no_frame = 1;
2107 } else {
2108 goto invalid_sdl_args;
2109 }
2110 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2111 opts = nextopt;
2112 if (strstart(opts, "on", &nextopt)) {
2113 alt_grab = 1;
2114 } else if (strstart(opts, "off", &nextopt)) {
2115 alt_grab = 0;
2116 } else {
2117 goto invalid_sdl_args;
2118 }
2119 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2120 opts = nextopt;
2121 if (strstart(opts, "on", &nextopt)) {
2122 ctrl_grab = 1;
2123 } else if (strstart(opts, "off", &nextopt)) {
2124 ctrl_grab = 0;
2125 } else {
2126 goto invalid_sdl_args;
2127 }
2128 } else if (strstart(opts, ",window_close=", &nextopt)) {
2129 opts = nextopt;
2130 dpy.has_window_close = true;
2131 if (strstart(opts, "on", &nextopt)) {
2132 dpy.window_close = true;
2133 } else if (strstart(opts, "off", &nextopt)) {
2134 dpy.window_close = false;
2135 } else {
2136 goto invalid_sdl_args;
2137 }
2138 } else if (strstart(opts, ",gl=", &nextopt)) {
2139 opts = nextopt;
2140 dpy.has_gl = true;
2141 if (strstart(opts, "on", &nextopt)) {
2142 dpy.gl = true;
2143 } else if (strstart(opts, "off", &nextopt)) {
2144 dpy.gl = false;
2145 } else {
2146 goto invalid_sdl_args;
2147 }
2148 } else {
2149 invalid_sdl_args:
2150 error_report("invalid SDL option string");
2151 exit(1);
2152 }
2153 opts = nextopt;
2154 }
2155 } else if (strstart(p, "vnc", &opts)) {
2156 if (*opts == '=') {
2157 vnc_parse(opts + 1, &error_fatal);
2158 } else {
2159 error_report("VNC requires a display argument vnc=<display>");
2160 exit(1);
2161 }
2162 } else if (strstart(p, "egl-headless", &opts)) {
2163 #ifdef CONFIG_OPENGL_DMABUF
2164 display_opengl = 1;
2165 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2166 #else
2167 error_report("egl support is disabled");
2168 exit(1);
2169 #endif
2170 } else if (strstart(p, "curses", &opts)) {
2171 dpy.type = DISPLAY_TYPE_CURSES;
2172 } else if (strstart(p, "gtk", &opts)) {
2173 dpy.type = DISPLAY_TYPE_GTK;
2174 while (*opts) {
2175 const char *nextopt;
2176
2177 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2178 opts = nextopt;
2179 dpy.u.gtk.has_grab_on_hover = true;
2180 if (strstart(opts, "on", &nextopt)) {
2181 dpy.u.gtk.grab_on_hover = true;
2182 } else if (strstart(opts, "off", &nextopt)) {
2183 dpy.u.gtk.grab_on_hover = false;
2184 } else {
2185 goto invalid_gtk_args;
2186 }
2187 } else if (strstart(opts, ",gl=", &nextopt)) {
2188 opts = nextopt;
2189 dpy.has_gl = true;
2190 if (strstart(opts, "on", &nextopt)) {
2191 dpy.gl = true;
2192 } else if (strstart(opts, "off", &nextopt)) {
2193 dpy.gl = false;
2194 } else {
2195 goto invalid_gtk_args;
2196 }
2197 } else {
2198 invalid_gtk_args:
2199 error_report("invalid GTK option string");
2200 exit(1);
2201 }
2202 opts = nextopt;
2203 }
2204 } else if (strstart(p, "none", &opts)) {
2205 dpy.type = DISPLAY_TYPE_NONE;
2206 } else {
2207 error_report("unknown display type");
2208 exit(1);
2209 }
2210 }
2211
2212 static int balloon_parse(const char *arg)
2213 {
2214 QemuOpts *opts;
2215
2216 if (strcmp(arg, "none") == 0) {
2217 return 0;
2218 }
2219
2220 if (!strncmp(arg, "virtio", 6)) {
2221 if (arg[6] == ',') {
2222 /* have params -> parse them */
2223 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2224 false);
2225 if (!opts)
2226 return -1;
2227 } else {
2228 /* create empty opts */
2229 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2230 &error_abort);
2231 }
2232 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2233 return 0;
2234 }
2235
2236 return -1;
2237 }
2238
2239 char *qemu_find_file(int type, const char *name)
2240 {
2241 int i;
2242 const char *subdir;
2243 char *buf;
2244
2245 /* Try the name as a straight path first */
2246 if (access(name, R_OK) == 0) {
2247 trace_load_file(name, name);
2248 return g_strdup(name);
2249 }
2250
2251 switch (type) {
2252 case QEMU_FILE_TYPE_BIOS:
2253 subdir = "";
2254 break;
2255 case QEMU_FILE_TYPE_KEYMAP:
2256 subdir = "keymaps/";
2257 break;
2258 default:
2259 abort();
2260 }
2261
2262 for (i = 0; i < data_dir_idx; i++) {
2263 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2264 if (access(buf, R_OK) == 0) {
2265 trace_load_file(name, buf);
2266 return buf;
2267 }
2268 g_free(buf);
2269 }
2270 return NULL;
2271 }
2272
2273 static void qemu_add_data_dir(const char *path)
2274 {
2275 int i;
2276
2277 if (path == NULL) {
2278 return;
2279 }
2280 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2281 return;
2282 }
2283 for (i = 0; i < data_dir_idx; i++) {
2284 if (strcmp(data_dir[i], path) == 0) {
2285 return; /* duplicate */
2286 }
2287 }
2288 data_dir[data_dir_idx++] = g_strdup(path);
2289 }
2290
2291 static inline bool nonempty_str(const char *str)
2292 {
2293 return str && *str;
2294 }
2295
2296 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2297 {
2298 gchar *buf;
2299 size_t size;
2300 const char *name, *file, *str;
2301 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2302
2303 if (fw_cfg == NULL) {
2304 error_report("fw_cfg device not available");
2305 return -1;
2306 }
2307 name = qemu_opt_get(opts, "name");
2308 file = qemu_opt_get(opts, "file");
2309 str = qemu_opt_get(opts, "string");
2310
2311 /* we need name and either a file or the content string */
2312 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2313 error_report("invalid argument(s)");
2314 return -1;
2315 }
2316 if (nonempty_str(file) && nonempty_str(str)) {
2317 error_report("file and string are mutually exclusive");
2318 return -1;
2319 }
2320 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2321 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2322 return -1;
2323 }
2324 if (strncmp(name, "opt/", 4) != 0) {
2325 warn_report("externally provided fw_cfg item names "
2326 "should be prefixed with \"opt/\"");
2327 }
2328 if (nonempty_str(str)) {
2329 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2330 buf = g_memdup(str, size);
2331 } else {
2332 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2333 error_report("can't load %s", file);
2334 return -1;
2335 }
2336 }
2337 /* For legacy, keep user files in a specific global order. */
2338 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2339 fw_cfg_add_file(fw_cfg, name, buf, size);
2340 fw_cfg_reset_order_override(fw_cfg);
2341 return 0;
2342 }
2343
2344 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2345 {
2346 return qdev_device_help(opts);
2347 }
2348
2349 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2350 {
2351 Error *err = NULL;
2352 DeviceState *dev;
2353
2354 dev = qdev_device_add(opts, &err);
2355 if (!dev) {
2356 error_report_err(err);
2357 return -1;
2358 }
2359 object_unref(OBJECT(dev));
2360 return 0;
2361 }
2362
2363 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2364 {
2365 Error *local_err = NULL;
2366
2367 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2368 if (local_err) {
2369 error_report_err(local_err);
2370 return -1;
2371 }
2372 exit(0);
2373 }
2374 return 0;
2375 }
2376
2377 #ifdef CONFIG_VIRTFS
2378 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2379 {
2380 return qemu_fsdev_add(opts);
2381 }
2382 #endif
2383
2384 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2385 {
2386 Chardev *chr;
2387 const char *chardev;
2388 const char *mode;
2389 int flags;
2390
2391 mode = qemu_opt_get(opts, "mode");
2392 if (mode == NULL) {
2393 mode = "readline";
2394 }
2395 if (strcmp(mode, "readline") == 0) {
2396 flags = MONITOR_USE_READLINE;
2397 } else if (strcmp(mode, "control") == 0) {
2398 flags = MONITOR_USE_CONTROL;
2399 } else {
2400 error_report("unknown monitor mode \"%s\"", mode);
2401 exit(1);
2402 }
2403
2404 if (qemu_opt_get_bool(opts, "pretty", 0))
2405 flags |= MONITOR_USE_PRETTY;
2406
2407 chardev = qemu_opt_get(opts, "chardev");
2408 chr = qemu_chr_find(chardev);
2409 if (chr == NULL) {
2410 error_report("chardev \"%s\" not found", chardev);
2411 exit(1);
2412 }
2413
2414 monitor_init(chr, flags);
2415 return 0;
2416 }
2417
2418 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2419 {
2420 static int monitor_device_index = 0;
2421 QemuOpts *opts;
2422 const char *p;
2423 char label[32];
2424
2425 if (strstart(optarg, "chardev:", &p)) {
2426 snprintf(label, sizeof(label), "%s", p);
2427 } else {
2428 snprintf(label, sizeof(label), "compat_monitor%d",
2429 monitor_device_index);
2430 opts = qemu_chr_parse_compat(label, optarg);
2431 if (!opts) {
2432 error_report("parse error: %s", optarg);
2433 exit(1);
2434 }
2435 }
2436
2437 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2438 qemu_opt_set(opts, "mode", mode, &error_abort);
2439 qemu_opt_set(opts, "chardev", label, &error_abort);
2440 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2441 monitor_device_index++;
2442 }
2443
2444 struct device_config {
2445 enum {
2446 DEV_USB, /* -usbdevice */
2447 DEV_BT, /* -bt */
2448 DEV_SERIAL, /* -serial */
2449 DEV_PARALLEL, /* -parallel */
2450 DEV_VIRTCON, /* -virtioconsole */
2451 DEV_DEBUGCON, /* -debugcon */
2452 DEV_GDB, /* -gdb, -s */
2453 DEV_SCLP, /* s390 sclp */
2454 } type;
2455 const char *cmdline;
2456 Location loc;
2457 QTAILQ_ENTRY(device_config) next;
2458 };
2459
2460 static QTAILQ_HEAD(, device_config) device_configs =
2461 QTAILQ_HEAD_INITIALIZER(device_configs);
2462
2463 static void add_device_config(int type, const char *cmdline)
2464 {
2465 struct device_config *conf;
2466
2467 conf = g_malloc0(sizeof(*conf));
2468 conf->type = type;
2469 conf->cmdline = cmdline;
2470 loc_save(&conf->loc);
2471 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2472 }
2473
2474 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2475 {
2476 struct device_config *conf;
2477 int rc;
2478
2479 QTAILQ_FOREACH(conf, &device_configs, next) {
2480 if (conf->type != type)
2481 continue;
2482 loc_push_restore(&conf->loc);
2483 rc = func(conf->cmdline);
2484 loc_pop(&conf->loc);
2485 if (rc) {
2486 return rc;
2487 }
2488 }
2489 return 0;
2490 }
2491
2492 static int serial_parse(const char *devname)
2493 {
2494 static int index = 0;
2495 char label[32];
2496
2497 if (strcmp(devname, "none") == 0)
2498 return 0;
2499 if (index == MAX_SERIAL_PORTS) {
2500 error_report("too many serial ports");
2501 exit(1);
2502 }
2503 snprintf(label, sizeof(label), "serial%d", index);
2504 serial_hds[index] = qemu_chr_new(label, devname);
2505 if (!serial_hds[index]) {
2506 error_report("could not connect serial device"
2507 " to character backend '%s'", devname);
2508 return -1;
2509 }
2510 index++;
2511 return 0;
2512 }
2513
2514 static int parallel_parse(const char *devname)
2515 {
2516 static int index = 0;
2517 char label[32];
2518
2519 if (strcmp(devname, "none") == 0)
2520 return 0;
2521 if (index == MAX_PARALLEL_PORTS) {
2522 error_report("too many parallel ports");
2523 exit(1);
2524 }
2525 snprintf(label, sizeof(label), "parallel%d", index);
2526 parallel_hds[index] = qemu_chr_new(label, devname);
2527 if (!parallel_hds[index]) {
2528 error_report("could not connect parallel device"
2529 " to character backend '%s'", devname);
2530 return -1;
2531 }
2532 index++;
2533 return 0;
2534 }
2535
2536 static int virtcon_parse(const char *devname)
2537 {
2538 QemuOptsList *device = qemu_find_opts("device");
2539 static int index = 0;
2540 char label[32];
2541 QemuOpts *bus_opts, *dev_opts;
2542
2543 if (strcmp(devname, "none") == 0)
2544 return 0;
2545 if (index == MAX_VIRTIO_CONSOLES) {
2546 error_report("too many virtio consoles");
2547 exit(1);
2548 }
2549
2550 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2551 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2552
2553 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2554 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2555
2556 snprintf(label, sizeof(label), "virtcon%d", index);
2557 virtcon_hds[index] = qemu_chr_new(label, devname);
2558 if (!virtcon_hds[index]) {
2559 error_report("could not connect virtio console"
2560 " to character backend '%s'", devname);
2561 return -1;
2562 }
2563 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2564
2565 index++;
2566 return 0;
2567 }
2568
2569 static int sclp_parse(const char *devname)
2570 {
2571 QemuOptsList *device = qemu_find_opts("device");
2572 static int index = 0;
2573 char label[32];
2574 QemuOpts *dev_opts;
2575
2576 if (strcmp(devname, "none") == 0) {
2577 return 0;
2578 }
2579 if (index == MAX_SCLP_CONSOLES) {
2580 error_report("too many sclp consoles");
2581 exit(1);
2582 }
2583
2584 assert(arch_type == QEMU_ARCH_S390X);
2585
2586 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2587 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2588
2589 snprintf(label, sizeof(label), "sclpcon%d", index);
2590 sclp_hds[index] = qemu_chr_new(label, devname);
2591 if (!sclp_hds[index]) {
2592 error_report("could not connect sclp console"
2593 " to character backend '%s'", devname);
2594 return -1;
2595 }
2596 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2597
2598 index++;
2599 return 0;
2600 }
2601
2602 static int debugcon_parse(const char *devname)
2603 {
2604 QemuOpts *opts;
2605
2606 if (!qemu_chr_new("debugcon", devname)) {
2607 exit(1);
2608 }
2609 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2610 if (!opts) {
2611 error_report("already have a debugcon device");
2612 exit(1);
2613 }
2614 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2615 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2616 return 0;
2617 }
2618
2619 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2620 {
2621 const MachineClass *mc1 = a, *mc2 = b;
2622 int res;
2623
2624 if (mc1->family == NULL) {
2625 if (mc2->family == NULL) {
2626 /* Compare standalone machine types against each other; they sort
2627 * in increasing order.
2628 */
2629 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2630 object_class_get_name(OBJECT_CLASS(mc2)));
2631 }
2632
2633 /* Standalone machine types sort after families. */
2634 return 1;
2635 }
2636
2637 if (mc2->family == NULL) {
2638 /* Families sort before standalone machine types. */
2639 return -1;
2640 }
2641
2642 /* Families sort between each other alphabetically increasingly. */
2643 res = strcmp(mc1->family, mc2->family);
2644 if (res != 0) {
2645 return res;
2646 }
2647
2648 /* Within the same family, machine types sort in decreasing order. */
2649 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2650 object_class_get_name(OBJECT_CLASS(mc1)));
2651 }
2652
2653 static MachineClass *machine_parse(const char *name)
2654 {
2655 MachineClass *mc = NULL;
2656 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2657
2658 if (name) {
2659 mc = find_machine(name);
2660 }
2661 if (mc) {
2662 g_slist_free(machines);
2663 return mc;
2664 }
2665 if (name && !is_help_option(name)) {
2666 error_report("unsupported machine type");
2667 error_printf("Use -machine help to list supported machines\n");
2668 } else {
2669 printf("Supported machines are:\n");
2670 machines = g_slist_sort(machines, machine_class_cmp);
2671 for (el = machines; el; el = el->next) {
2672 MachineClass *mc = el->data;
2673 if (mc->alias) {
2674 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2675 }
2676 printf("%-20s %s%s\n", mc->name, mc->desc,
2677 mc->is_default ? " (default)" : "");
2678 }
2679 }
2680
2681 g_slist_free(machines);
2682 exit(!name || !is_help_option(name));
2683 }
2684
2685 void qemu_add_exit_notifier(Notifier *notify)
2686 {
2687 notifier_list_add(&exit_notifiers, notify);
2688 }
2689
2690 void qemu_remove_exit_notifier(Notifier *notify)
2691 {
2692 notifier_remove(notify);
2693 }
2694
2695 static void qemu_run_exit_notifiers(void)
2696 {
2697 notifier_list_notify(&exit_notifiers, NULL);
2698 }
2699
2700 static bool machine_init_done;
2701
2702 void qemu_add_machine_init_done_notifier(Notifier *notify)
2703 {
2704 notifier_list_add(&machine_init_done_notifiers, notify);
2705 if (machine_init_done) {
2706 notify->notify(notify, NULL);
2707 }
2708 }
2709
2710 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2711 {
2712 notifier_remove(notify);
2713 }
2714
2715 static void qemu_run_machine_init_done_notifiers(void)
2716 {
2717 notifier_list_notify(&machine_init_done_notifiers, NULL);
2718 machine_init_done = true;
2719 }
2720
2721 static const QEMUOption *lookup_opt(int argc, char **argv,
2722 const char **poptarg, int *poptind)
2723 {
2724 const QEMUOption *popt;
2725 int optind = *poptind;
2726 char *r = argv[optind];
2727 const char *optarg;
2728
2729 loc_set_cmdline(argv, optind, 1);
2730 optind++;
2731 /* Treat --foo the same as -foo. */
2732 if (r[1] == '-')
2733 r++;
2734 popt = qemu_options;
2735 for(;;) {
2736 if (!popt->name) {
2737 error_report("invalid option");
2738 exit(1);
2739 }
2740 if (!strcmp(popt->name, r + 1))
2741 break;
2742 popt++;
2743 }
2744 if (popt->flags & HAS_ARG) {
2745 if (optind >= argc) {
2746 error_report("requires an argument");
2747 exit(1);
2748 }
2749 optarg = argv[optind++];
2750 loc_set_cmdline(argv, optind - 2, 2);
2751 } else {
2752 optarg = NULL;
2753 }
2754
2755 *poptarg = optarg;
2756 *poptind = optind;
2757
2758 return popt;
2759 }
2760
2761 static MachineClass *select_machine(void)
2762 {
2763 MachineClass *machine_class = find_default_machine();
2764 const char *optarg;
2765 QemuOpts *opts;
2766 Location loc;
2767
2768 loc_push_none(&loc);
2769
2770 opts = qemu_get_machine_opts();
2771 qemu_opts_loc_restore(opts);
2772
2773 optarg = qemu_opt_get(opts, "type");
2774 if (optarg) {
2775 machine_class = machine_parse(optarg);
2776 }
2777
2778 if (!machine_class) {
2779 error_report("No machine specified, and there is no default");
2780 error_printf("Use -machine help to list supported machines\n");
2781 exit(1);
2782 }
2783
2784 loc_pop(&loc);
2785 return machine_class;
2786 }
2787
2788 static int machine_set_property(void *opaque,
2789 const char *name, const char *value,
2790 Error **errp)
2791 {
2792 Object *obj = OBJECT(opaque);
2793 Error *local_err = NULL;
2794 char *p, *qom_name;
2795
2796 if (strcmp(name, "type") == 0) {
2797 return 0;
2798 }
2799
2800 qom_name = g_strdup(name);
2801 for (p = qom_name; *p; p++) {
2802 if (*p == '_') {
2803 *p = '-';
2804 }
2805 }
2806
2807 object_property_parse(obj, value, qom_name, &local_err);
2808 g_free(qom_name);
2809
2810 if (local_err) {
2811 error_report_err(local_err);
2812 return -1;
2813 }
2814
2815 return 0;
2816 }
2817
2818
2819 /*
2820 * Initial object creation happens before all other
2821 * QEMU data types are created. The majority of objects
2822 * can be created at this point. The rng-egd object
2823 * cannot be created here, as it depends on the chardev
2824 * already existing.
2825 */
2826 static bool object_create_initial(const char *type)
2827 {
2828 if (g_str_equal(type, "rng-egd") ||
2829 g_str_has_prefix(type, "pr-manager-")) {
2830 return false;
2831 }
2832
2833 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2834 if (g_str_equal(type, "cryptodev-vhost-user")) {
2835 return false;
2836 }
2837 #endif
2838
2839 /*
2840 * return false for concrete netfilters since
2841 * they depend on netdevs already existing
2842 */
2843 if (g_str_equal(type, "filter-buffer") ||
2844 g_str_equal(type, "filter-dump") ||
2845 g_str_equal(type, "filter-mirror") ||
2846 g_str_equal(type, "filter-redirector") ||
2847 g_str_equal(type, "colo-compare") ||
2848 g_str_equal(type, "filter-rewriter") ||
2849 g_str_equal(type, "filter-replay")) {
2850 return false;
2851 }
2852
2853 /* Memory allocation by backends needs to be done
2854 * after configure_accelerator() (due to the tcg_enabled()
2855 * checks at memory_region_init_*()).
2856 *
2857 * Also, allocation of large amounts of memory may delay
2858 * chardev initialization for too long, and trigger timeouts
2859 * on software that waits for a monitor socket to be created
2860 * (e.g. libvirt).
2861 */
2862 if (g_str_has_prefix(type, "memory-backend-")) {
2863 return false;
2864 }
2865
2866 return true;
2867 }
2868
2869
2870 /*
2871 * The remainder of object creation happens after the
2872 * creation of chardev, fsdev, net clients and device data types.
2873 */
2874 static bool object_create_delayed(const char *type)
2875 {
2876 return !object_create_initial(type);
2877 }
2878
2879
2880 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2881 MachineClass *mc)
2882 {
2883 uint64_t sz;
2884 const char *mem_str;
2885 const char *maxmem_str, *slots_str;
2886 const ram_addr_t default_ram_size = mc->default_ram_size;
2887 QemuOpts *opts = qemu_find_opts_singleton("memory");
2888 Location loc;
2889
2890 loc_push_none(&loc);
2891 qemu_opts_loc_restore(opts);
2892
2893 sz = 0;
2894 mem_str = qemu_opt_get(opts, "size");
2895 if (mem_str) {
2896 if (!*mem_str) {
2897 error_report("missing 'size' option value");
2898 exit(EXIT_FAILURE);
2899 }
2900
2901 sz = qemu_opt_get_size(opts, "size", ram_size);
2902
2903 /* Fix up legacy suffix-less format */
2904 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2905 uint64_t overflow_check = sz;
2906
2907 sz <<= 20;
2908 if ((sz >> 20) != overflow_check) {
2909 error_report("too large 'size' option value");
2910 exit(EXIT_FAILURE);
2911 }
2912 }
2913 }
2914
2915 /* backward compatibility behaviour for case "-m 0" */
2916 if (sz == 0) {
2917 sz = default_ram_size;
2918 }
2919
2920 sz = QEMU_ALIGN_UP(sz, 8192);
2921 ram_size = sz;
2922 if (ram_size != sz) {
2923 error_report("ram size too large");
2924 exit(EXIT_FAILURE);
2925 }
2926
2927 /* store value for the future use */
2928 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2929 *maxram_size = ram_size;
2930
2931 maxmem_str = qemu_opt_get(opts, "maxmem");
2932 slots_str = qemu_opt_get(opts, "slots");
2933 if (maxmem_str && slots_str) {
2934 uint64_t slots;
2935
2936 sz = qemu_opt_get_size(opts, "maxmem", 0);
2937 slots = qemu_opt_get_number(opts, "slots", 0);
2938 if (sz < ram_size) {
2939 error_report("invalid value of -m option maxmem: "
2940 "maximum memory size (0x%" PRIx64 ") must be at least "
2941 "the initial memory size (0x" RAM_ADDR_FMT ")",
2942 sz, ram_size);
2943 exit(EXIT_FAILURE);
2944 } else if (sz > ram_size) {
2945 if (!slots) {
2946 error_report("invalid value of -m option: maxmem was "
2947 "specified, but no hotplug slots were specified");
2948 exit(EXIT_FAILURE);
2949 }
2950 } else if (slots) {
2951 error_report("invalid value of -m option maxmem: "
2952 "memory slots were specified but maximum memory size "
2953 "(0x%" PRIx64 ") is equal to the initial memory size "
2954 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2955 exit(EXIT_FAILURE);
2956 }
2957
2958 *maxram_size = sz;
2959 *ram_slots = slots;
2960 } else if ((!maxmem_str && slots_str) ||
2961 (maxmem_str && !slots_str)) {
2962 error_report("invalid -m option value: missing "
2963 "'%s' option", slots_str ? "maxmem" : "slots");
2964 exit(EXIT_FAILURE);
2965 }
2966
2967 loc_pop(&loc);
2968 }
2969
2970 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2971 {
2972 GlobalProperty *g;
2973
2974 g = g_malloc0(sizeof(*g));
2975 g->driver = qemu_opt_get(opts, "driver");
2976 g->property = qemu_opt_get(opts, "property");
2977 g->value = qemu_opt_get(opts, "value");
2978 g->user_provided = true;
2979 g->errp = &error_fatal;
2980 qdev_prop_register_global(g);
2981 return 0;
2982 }
2983
2984 static int qemu_read_default_config_file(void)
2985 {
2986 int ret;
2987
2988 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2989 if (ret < 0 && ret != -ENOENT) {
2990 return ret;
2991 }
2992
2993 return 0;
2994 }
2995
2996 static void user_register_global_props(void)
2997 {
2998 qemu_opts_foreach(qemu_find_opts("global"),
2999 global_init_func, NULL, NULL);
3000 }
3001
3002 /*
3003 * Note: we should see that these properties are actually having a
3004 * priority: accel < machine < user. This means e.g. when user
3005 * specifies something in "-global", it'll always be used with highest
3006 * priority than either machine/accelerator compat properties.
3007 */
3008 static void register_global_properties(MachineState *ms)
3009 {
3010 accel_register_compat_props(ms->accelerator);
3011 machine_register_compat_props(ms);
3012 user_register_global_props();
3013 }
3014
3015 int main(int argc, char **argv, char **envp)
3016 {
3017 int i;
3018 int snapshot, linux_boot;
3019 const char *initrd_filename;
3020 const char *kernel_filename, *kernel_cmdline;
3021 const char *boot_order = NULL;
3022 const char *boot_once = NULL;
3023 DisplayState *ds;
3024 QemuOpts *opts, *machine_opts;
3025 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3026 QemuOptsList *olist;
3027 int optind;
3028 const char *optarg;
3029 const char *loadvm = NULL;
3030 MachineClass *machine_class;
3031 const char *cpu_model;
3032 const char *vga_model = NULL;
3033 const char *qtest_chrdev = NULL;
3034 const char *qtest_log = NULL;
3035 const char *pid_file = NULL;
3036 const char *incoming = NULL;
3037 bool userconfig = true;
3038 bool nographic = false;
3039 int display_remote = 0;
3040 const char *log_mask = NULL;
3041 const char *log_file = NULL;
3042 char *trace_file = NULL;
3043 ram_addr_t maxram_size;
3044 uint64_t ram_slots = 0;
3045 FILE *vmstate_dump_file = NULL;
3046 Error *main_loop_err = NULL;
3047 Error *err = NULL;
3048 bool list_data_dirs = false;
3049 char *dir, **dirs;
3050 typedef struct BlockdevOptions_queue {
3051 BlockdevOptions *bdo;
3052 Location loc;
3053 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3054 } BlockdevOptions_queue;
3055 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3056 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3057
3058 module_call_init(MODULE_INIT_TRACE);
3059
3060 qemu_init_cpu_list();
3061 qemu_init_cpu_loop();
3062 qemu_mutex_lock_iothread();
3063
3064 atexit(qemu_run_exit_notifiers);
3065 error_set_progname(argv[0]);
3066 qemu_init_exec_dir(argv[0]);
3067
3068 module_call_init(MODULE_INIT_QOM);
3069 monitor_init_qmp_commands();
3070
3071 qemu_add_opts(&qemu_drive_opts);
3072 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3073 qemu_add_drive_opts(&qemu_common_drive_opts);
3074 qemu_add_drive_opts(&qemu_drive_opts);
3075 qemu_add_drive_opts(&bdrv_runtime_opts);
3076 qemu_add_opts(&qemu_chardev_opts);
3077 qemu_add_opts(&qemu_device_opts);
3078 qemu_add_opts(&qemu_netdev_opts);
3079 qemu_add_opts(&qemu_net_opts);
3080 qemu_add_opts(&qemu_rtc_opts);
3081 qemu_add_opts(&qemu_global_opts);
3082 qemu_add_opts(&qemu_mon_opts);
3083 qemu_add_opts(&qemu_trace_opts);
3084 qemu_add_opts(&qemu_option_rom_opts);
3085 qemu_add_opts(&qemu_machine_opts);
3086 qemu_add_opts(&qemu_accel_opts);
3087 qemu_add_opts(&qemu_mem_opts);
3088 qemu_add_opts(&qemu_smp_opts);
3089 qemu_add_opts(&qemu_boot_opts);
3090 qemu_add_opts(&qemu_sandbox_opts);
3091 qemu_add_opts(&qemu_add_fd_opts);
3092 qemu_add_opts(&qemu_object_opts);
3093 qemu_add_opts(&qemu_tpmdev_opts);
3094 qemu_add_opts(&qemu_realtime_opts);
3095 qemu_add_opts(&qemu_msg_opts);
3096 qemu_add_opts(&qemu_name_opts);
3097 qemu_add_opts(&qemu_numa_opts);
3098 qemu_add_opts(&qemu_icount_opts);
3099 qemu_add_opts(&qemu_semihosting_config_opts);
3100 qemu_add_opts(&qemu_fw_cfg_opts);
3101 module_call_init(MODULE_INIT_OPTS);
3102
3103 runstate_init();
3104
3105 if (qcrypto_init(&err) < 0) {
3106 error_reportf_err(err, "cannot initialize crypto: ");
3107 exit(1);
3108 }
3109 rtc_clock = QEMU_CLOCK_HOST;
3110
3111 QLIST_INIT (&vm_change_state_head);
3112 os_setup_early_signal_handling();
3113
3114 cpu_model = NULL;
3115 snapshot = 0;
3116
3117 nb_nics = 0;
3118
3119 bdrv_init_with_whitelist();
3120
3121 autostart = 1;
3122
3123 /* first pass of option parsing */
3124 optind = 1;
3125 while (optind < argc) {
3126 if (argv[optind][0] != '-') {
3127 /* disk image */
3128 optind++;
3129 } else {
3130 const QEMUOption *popt;
3131
3132 popt = lookup_opt(argc, argv, &optarg, &optind);
3133 switch (popt->index) {
3134 case QEMU_OPTION_nodefconfig:
3135 case QEMU_OPTION_nouserconfig:
3136 userconfig = false;
3137 break;
3138 }
3139 }
3140 }
3141
3142 if (userconfig) {
3143 if (qemu_read_default_config_file() < 0) {
3144 exit(1);
3145 }
3146 }
3147
3148 /* second pass of option parsing */
3149 optind = 1;
3150 for(;;) {
3151 if (optind >= argc)
3152 break;
3153 if (argv[optind][0] != '-') {
3154 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3155 } else {
3156 const QEMUOption *popt;
3157
3158 popt = lookup_opt(argc, argv, &optarg, &optind);
3159 if (!(popt->arch_mask & arch_type)) {
3160 error_report("Option not supported for this target");
3161 exit(1);
3162 }
3163 switch(popt->index) {
3164 case QEMU_OPTION_no_kvm_irqchip: {
3165 olist = qemu_find_opts("machine");
3166 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3167 break;
3168 }
3169 case QEMU_OPTION_cpu:
3170 /* hw initialization will check this */
3171 cpu_model = optarg;
3172 break;
3173 case QEMU_OPTION_hda:
3174 case QEMU_OPTION_hdb:
3175 case QEMU_OPTION_hdc:
3176 case QEMU_OPTION_hdd:
3177 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3178 HD_OPTS);
3179 break;
3180 case QEMU_OPTION_blockdev:
3181 {
3182 Visitor *v;
3183 BlockdevOptions_queue *bdo;
3184
3185 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3186 if (!v) {
3187 error_report_err(err);
3188 exit(1);
3189 }
3190
3191 bdo = g_new(BlockdevOptions_queue, 1);
3192 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3193 &error_fatal);
3194 visit_free(v);
3195 loc_save(&bdo->loc);
3196 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3197 break;
3198 }
3199 case QEMU_OPTION_drive:
3200 if (drive_def(optarg) == NULL) {
3201 exit(1);
3202 }
3203 break;
3204 case QEMU_OPTION_set:
3205 if (qemu_set_option(optarg) != 0)
3206 exit(1);
3207 break;
3208 case QEMU_OPTION_global:
3209 if (qemu_global_option(optarg) != 0)
3210 exit(1);
3211 break;
3212 case QEMU_OPTION_mtdblock:
3213 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3214 break;
3215 case QEMU_OPTION_sd:
3216 drive_add(IF_SD, -1, optarg, SD_OPTS);
3217 break;
3218 case QEMU_OPTION_pflash:
3219 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3220 break;
3221 case QEMU_OPTION_snapshot:
3222 snapshot = 1;
3223 break;
3224 case QEMU_OPTION_numa:
3225 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3226 optarg, true);
3227 if (!opts) {
3228 exit(1);
3229 }
3230 break;
3231 case QEMU_OPTION_display:
3232 parse_display(optarg);
3233 break;
3234 case QEMU_OPTION_nographic:
3235 olist = qemu_find_opts("machine");
3236 qemu_opts_parse_noisily(olist, "graphics=off", false);
3237 nographic = true;
3238 dpy.type = DISPLAY_TYPE_NONE;
3239 break;
3240 case QEMU_OPTION_curses:
3241 #ifdef CONFIG_CURSES
3242 dpy.type = DISPLAY_TYPE_CURSES;
3243 #else
3244 error_report("curses support is disabled");
3245 exit(1);
3246 #endif
3247 break;
3248 case QEMU_OPTION_portrait:
3249 graphic_rotate = 90;
3250 break;
3251 case QEMU_OPTION_rotate:
3252 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3253 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3254 graphic_rotate != 180 && graphic_rotate != 270) {
3255 error_report("only 90, 180, 270 deg rotation is available");
3256 exit(1);
3257 }
3258 break;
3259 case QEMU_OPTION_kernel:
3260 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3261 &error_abort);
3262 break;
3263 case QEMU_OPTION_initrd:
3264 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3265 &error_abort);
3266 break;
3267 case QEMU_OPTION_append:
3268 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3269 &error_abort);
3270 break;
3271 case QEMU_OPTION_dtb:
3272 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3273 &error_abort);
3274 break;
3275 case QEMU_OPTION_cdrom:
3276 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3277 break;
3278 case QEMU_OPTION_boot:
3279 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3280 optarg, true);
3281 if (!opts) {
3282 exit(1);
3283 }
3284 break;
3285 case QEMU_OPTION_fda:
3286 case QEMU_OPTION_fdb:
3287 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3288 optarg, FD_OPTS);
3289 break;
3290 case QEMU_OPTION_no_fd_bootchk:
3291 fd_bootchk = 0;
3292 break;
3293 case QEMU_OPTION_netdev:
3294 default_net = 0;
3295 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3296 exit(1);
3297 }
3298 break;
3299 case QEMU_OPTION_net:
3300 default_net = 0;
3301 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3302 exit(1);
3303 }
3304 break;
3305 #ifdef CONFIG_LIBISCSI
3306 case QEMU_OPTION_iscsi:
3307 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3308 optarg, false);
3309 if (!opts) {
3310 exit(1);
3311 }
3312 break;
3313 #endif
3314 #ifdef CONFIG_SLIRP
3315 case QEMU_OPTION_tftp:
3316 error_report("The -tftp option is deprecated. "
3317 "Please use '-netdev user,tftp=...' instead.");
3318 legacy_tftp_prefix = optarg;
3319 break;
3320 case QEMU_OPTION_bootp:
3321 error_report("The -bootp option is deprecated. "
3322 "Please use '-netdev user,bootfile=...' instead.");
3323 legacy_bootp_filename = optarg;
3324 break;
3325 case QEMU_OPTION_redir:
3326 error_report("The -redir option is deprecated. "
3327 "Please use '-netdev user,hostfwd=...' instead.");
3328 if (net_slirp_redir(optarg) < 0)
3329 exit(1);
3330 break;
3331 #endif
3332 case QEMU_OPTION_bt:
3333 add_device_config(DEV_BT, optarg);
3334 break;
3335 case QEMU_OPTION_audio_help:
3336 AUD_help ();
3337 exit (0);
3338 break;
3339 case QEMU_OPTION_soundhw:
3340 select_soundhw (optarg);
3341 break;
3342 case QEMU_OPTION_h:
3343 help(0);
3344 break;
3345 case QEMU_OPTION_version:
3346 version();
3347 exit(0);
3348 break;
3349 case QEMU_OPTION_m:
3350 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3351 optarg, true);
3352 if (!opts) {
3353 exit(EXIT_FAILURE);
3354 }
3355 break;
3356 #ifdef CONFIG_TPM
3357 case QEMU_OPTION_tpmdev:
3358 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3359 exit(1);
3360 }
3361 break;
3362 #endif
3363 case QEMU_OPTION_mempath:
3364 mem_path = optarg;
3365 break;
3366 case QEMU_OPTION_mem_prealloc:
3367 mem_prealloc = 1;
3368 break;
3369 case QEMU_OPTION_d:
3370 log_mask = optarg;
3371 break;
3372 case QEMU_OPTION_D:
3373 log_file = optarg;
3374 break;
3375 case QEMU_OPTION_DFILTER:
3376 qemu_set_dfilter_ranges(optarg, &error_fatal);
3377 break;
3378 case QEMU_OPTION_s:
3379 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3380 break;
3381 case QEMU_OPTION_gdb:
3382 add_device_config(DEV_GDB, optarg);
3383 break;
3384 case QEMU_OPTION_L:
3385 if (is_help_option(optarg)) {
3386 list_data_dirs = true;
3387 } else {
3388 qemu_add_data_dir(optarg);
3389 }
3390 break;
3391 case QEMU_OPTION_bios:
3392 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3393 &error_abort);
3394 break;
3395 case QEMU_OPTION_singlestep:
3396 singlestep = 1;
3397 break;
3398 case QEMU_OPTION_S:
3399 autostart = 0;
3400 break;
3401 case QEMU_OPTION_k:
3402 keyboard_layout = optarg;
3403 break;
3404 case QEMU_OPTION_localtime:
3405 rtc_utc = 0;
3406 break;
3407 case QEMU_OPTION_vga:
3408 vga_model = optarg;
3409 default_vga = 0;
3410 break;
3411 case QEMU_OPTION_g:
3412 {
3413 const char *p;
3414 int w, h, depth;
3415 p = optarg;
3416 w = strtol(p, (char **)&p, 10);
3417 if (w <= 0) {
3418 graphic_error:
3419 error_report("invalid resolution or depth");
3420 exit(1);
3421 }
3422 if (*p != 'x')
3423 goto graphic_error;
3424 p++;
3425 h = strtol(p, (char **)&p, 10);
3426 if (h <= 0)
3427 goto graphic_error;
3428 if (*p == 'x') {
3429 p++;
3430 depth = strtol(p, (char **)&p, 10);
3431 if (depth != 8 && depth != 15 && depth != 16 &&
3432 depth != 24 && depth != 32)
3433 goto graphic_error;
3434 } else if (*p == '\0') {
3435 depth = graphic_depth;
3436 } else {
3437 goto graphic_error;
3438 }
3439
3440 graphic_width = w;
3441 graphic_height = h;
3442 graphic_depth = depth;
3443 }
3444 break;
3445 case QEMU_OPTION_echr:
3446 {
3447 char *r;
3448 term_escape_char = strtol(optarg, &r, 0);
3449 if (r == optarg)
3450 printf("Bad argument to echr\n");
3451 break;
3452 }
3453 case QEMU_OPTION_monitor:
3454 default_monitor = 0;
3455 if (strncmp(optarg, "none", 4)) {
3456 monitor_parse(optarg, "readline", false);
3457 }
3458 break;
3459 case QEMU_OPTION_qmp:
3460 monitor_parse(optarg, "control", false);
3461 default_monitor = 0;
3462 break;
3463 case QEMU_OPTION_qmp_pretty:
3464 monitor_parse(optarg, "control", true);
3465 default_monitor = 0;
3466 break;
3467 case QEMU_OPTION_mon:
3468 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3469 true);
3470 if (!opts) {
3471 exit(1);
3472 }
3473 default_monitor = 0;
3474 break;
3475 case QEMU_OPTION_chardev:
3476 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3477 optarg, true);
3478 if (!opts) {
3479 exit(1);
3480 }
3481 break;
3482 case QEMU_OPTION_fsdev:
3483 olist = qemu_find_opts("fsdev");
3484 if (!olist) {
3485 error_report("fsdev support is disabled");
3486 exit(1);
3487 }
3488 opts = qemu_opts_parse_noisily(olist, optarg, true);
3489 if (!opts) {
3490 exit(1);
3491 }
3492 break;
3493 case QEMU_OPTION_virtfs: {
3494 QemuOpts *fsdev;
3495 QemuOpts *device;
3496 const char *writeout, *sock_fd, *socket, *path, *security_model;
3497
3498 olist = qemu_find_opts("virtfs");
3499 if (!olist) {
3500 error_report("virtfs support is disabled");
3501 exit(1);
3502 }
3503 opts = qemu_opts_parse_noisily(olist, optarg, true);
3504 if (!opts) {
3505 exit(1);
3506 }
3507
3508 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3509 qemu_opt_get(opts, "mount_tag") == NULL) {
3510 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3511 exit(1);
3512 }
3513 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3514 qemu_opts_id(opts) ?:
3515 qemu_opt_get(opts, "mount_tag"),
3516 1, NULL);
3517 if (!fsdev) {
3518 error_report("duplicate or invalid fsdev id: %s",
3519 qemu_opt_get(opts, "mount_tag"));
3520 exit(1);
3521 }
3522
3523 writeout = qemu_opt_get(opts, "writeout");
3524 if (writeout) {
3525 #ifdef CONFIG_SYNC_FILE_RANGE
3526 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3527 #else
3528 error_report("writeout=immediate not supported "
3529 "on this platform");
3530 exit(1);
3531 #endif
3532 }
3533 qemu_opt_set(fsdev, "fsdriver",
3534 qemu_opt_get(opts, "fsdriver"), &error_abort);
3535 path = qemu_opt_get(opts, "path");
3536 if (path) {
3537 qemu_opt_set(fsdev, "path", path, &error_abort);
3538 }
3539 security_model = qemu_opt_get(opts, "security_model");
3540 if (security_model) {
3541 qemu_opt_set(fsdev, "security_model", security_model,
3542 &error_abort);
3543 }
3544 socket = qemu_opt_get(opts, "socket");
3545 if (socket) {
3546 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3547 }
3548 sock_fd = qemu_opt_get(opts, "sock_fd");
3549 if (sock_fd) {
3550 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3551 }
3552
3553 qemu_opt_set_bool(fsdev, "readonly",
3554 qemu_opt_get_bool(opts, "readonly", 0),
3555 &error_abort);
3556 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3557 &error_abort);
3558 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3559 qemu_opt_set(device, "fsdev",
3560 qemu_opts_id(fsdev), &error_abort);
3561 qemu_opt_set(device, "mount_tag",
3562 qemu_opt_get(opts, "mount_tag"), &error_abort);
3563 break;
3564 }
3565 case QEMU_OPTION_virtfs_synth: {
3566 QemuOpts *fsdev;
3567 QemuOpts *device;
3568
3569 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3570 1, NULL);
3571 if (!fsdev) {
3572 error_report("duplicate option: %s", "virtfs_synth");
3573 exit(1);
3574 }
3575 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3576
3577 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3578 &error_abort);
3579 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3580 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3581 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3582 break;
3583 }
3584 case QEMU_OPTION_serial:
3585 add_device_config(DEV_SERIAL, optarg);
3586 default_serial = 0;
3587 if (strncmp(optarg, "mon:", 4) == 0) {
3588 default_monitor = 0;
3589 }
3590 break;
3591 case QEMU_OPTION_watchdog:
3592 if (watchdog) {
3593 error_report("only one watchdog option may be given");
3594 return 1;
3595 }
3596 watchdog = optarg;
3597 break;
3598 case QEMU_OPTION_watchdog_action:
3599 if (select_watchdog_action(optarg) == -1) {
3600 error_report("unknown -watchdog-action parameter");
3601 exit(1);
3602 }
3603 break;
3604 case QEMU_OPTION_virtiocon:
3605 add_device_config(DEV_VIRTCON, optarg);
3606 default_virtcon = 0;
3607 if (strncmp(optarg, "mon:", 4) == 0) {
3608 default_monitor = 0;
3609 }
3610 break;
3611 case QEMU_OPTION_parallel:
3612 add_device_config(DEV_PARALLEL, optarg);
3613 default_parallel = 0;
3614 if (strncmp(optarg, "mon:", 4) == 0) {
3615 default_monitor = 0;
3616 }
3617 break;
3618 case QEMU_OPTION_debugcon:
3619 add_device_config(DEV_DEBUGCON, optarg);
3620 break;
3621 case QEMU_OPTION_loadvm:
3622 loadvm = optarg;
3623 break;
3624 case QEMU_OPTION_full_screen:
3625 dpy.has_full_screen = true;
3626 dpy.full_screen = true;
3627 break;
3628 case QEMU_OPTION_no_frame:
3629 g_printerr("The -no-frame switch is deprecated, and will be\n"
3630 "removed in a future release.\n");
3631 no_frame = 1;
3632 break;
3633 case QEMU_OPTION_alt_grab:
3634 alt_grab = 1;
3635 break;
3636 case QEMU_OPTION_ctrl_grab:
3637 ctrl_grab = 1;
3638 break;
3639 case QEMU_OPTION_no_quit:
3640 dpy.has_window_close = true;
3641 dpy.window_close = false;
3642 break;
3643 case QEMU_OPTION_sdl:
3644 #ifdef CONFIG_SDL
3645 dpy.type = DISPLAY_TYPE_SDL;
3646 break;
3647 #else
3648 error_report("SDL support is disabled");
3649 exit(1);
3650 #endif
3651 case QEMU_OPTION_pidfile:
3652 pid_file = optarg;
3653 break;
3654 case QEMU_OPTION_win2k_hack:
3655 win2k_install_hack = 1;
3656 break;
3657 case QEMU_OPTION_rtc_td_hack: {
3658 static GlobalProperty slew_lost_ticks = {
3659 .driver = "mc146818rtc",
3660 .property = "lost_tick_policy",
3661 .value = "slew",
3662 };
3663
3664 qdev_prop_register_global(&slew_lost_ticks);
3665 break;
3666 }
3667 case QEMU_OPTION_acpitable:
3668 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3669 optarg, true);
3670 if (!opts) {
3671 exit(1);
3672 }
3673 acpi_table_add(opts, &error_fatal);
3674 break;
3675 case QEMU_OPTION_smbios:
3676 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3677 optarg, false);
3678 if (!opts) {
3679 exit(1);
3680 }
3681 smbios_entry_add(opts, &error_fatal);
3682 break;
3683 case QEMU_OPTION_fwcfg:
3684 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3685 optarg, true);
3686 if (opts == NULL) {
3687 exit(1);
3688 }
3689 break;
3690 case QEMU_OPTION_enable_kvm:
3691 olist = qemu_find_opts("machine");
3692 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3693 break;
3694 case QEMU_OPTION_enable_hax:
3695 olist = qemu_find_opts("machine");
3696 qemu_opts_parse_noisily(olist, "accel=hax", false);
3697 break;
3698 case QEMU_OPTION_M:
3699 case QEMU_OPTION_machine:
3700 olist = qemu_find_opts("machine");
3701 opts = qemu_opts_parse_noisily(olist, optarg, true);
3702 if (!opts) {
3703 exit(1);
3704 }
3705 break;
3706 case QEMU_OPTION_no_kvm:
3707 olist = qemu_find_opts("machine");
3708 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3709 break;
3710 case QEMU_OPTION_no_kvm_pit_reinjection: {
3711 static GlobalProperty kvm_pit_lost_tick_policy = {
3712 .driver = "kvm-pit",
3713 .property = "lost_tick_policy",
3714 .value = "discard",
3715 };
3716
3717 warn_report("deprecated, replaced by "
3718 "-global kvm-pit.lost_tick_policy=discard");
3719 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3720 break;
3721 }
3722 case QEMU_OPTION_accel:
3723 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3724 optarg, true);
3725 optarg = qemu_opt_get(accel_opts, "accel");
3726 if (!optarg || is_help_option(optarg)) {
3727 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3728 exit(0);
3729 }
3730 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3731 false, &error_abort);
3732 qemu_opt_set(opts, "accel", optarg, &error_abort);
3733 break;
3734 case QEMU_OPTION_usb:
3735 olist = qemu_find_opts("machine");
3736 qemu_opts_parse_noisily(olist, "usb=on", false);
3737 break;
3738 case QEMU_OPTION_usbdevice:
3739 error_report("'-usbdevice' is deprecated, please use "
3740 "'-device usb-...' instead");
3741 olist = qemu_find_opts("machine");
3742 qemu_opts_parse_noisily(olist, "usb=on", false);
3743 add_device_config(DEV_USB, optarg);
3744 break;
3745 case QEMU_OPTION_device:
3746 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3747 optarg, true)) {
3748 exit(1);
3749 }
3750 break;
3751 case QEMU_OPTION_smp:
3752 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3753 optarg, true)) {
3754 exit(1);
3755 }
3756 break;
3757 case QEMU_OPTION_vnc:
3758 vnc_parse(optarg, &error_fatal);
3759 break;
3760 case QEMU_OPTION_no_acpi:
3761 acpi_enabled = 0;
3762 break;
3763 case QEMU_OPTION_no_hpet:
3764 no_hpet = 1;
3765 break;
3766 case QEMU_OPTION_balloon:
3767 if (balloon_parse(optarg) < 0) {
3768 error_report("unknown -balloon argument %s", optarg);
3769 exit(1);
3770 }
3771 break;
3772 case QEMU_OPTION_no_reboot:
3773 no_reboot = 1;
3774 break;
3775 case QEMU_OPTION_no_shutdown:
3776 no_shutdown = 1;
3777 break;
3778 case QEMU_OPTION_show_cursor:
3779 cursor_hide = 0;
3780 break;
3781 case QEMU_OPTION_uuid:
3782 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3783 error_report("failed to parse UUID string: wrong format");
3784 exit(1);
3785 }
3786 qemu_uuid_set = true;
3787 break;
3788 case QEMU_OPTION_option_rom:
3789 if (nb_option_roms >= MAX_OPTION_ROMS) {
3790 error_report("too many option ROMs");
3791 exit(1);
3792 }
3793 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3794 optarg, true);
3795 if (!opts) {
3796 exit(1);
3797 }
3798 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3799 option_rom[nb_option_roms].bootindex =
3800 qemu_opt_get_number(opts, "bootindex", -1);
3801 if (!option_rom[nb_option_roms].name) {
3802 error_report("Option ROM file is not specified");
3803 exit(1);
3804 }
3805 nb_option_roms++;
3806 break;
3807 case QEMU_OPTION_semihosting:
3808 semihosting.enabled = true;
3809 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3810 break;
3811 case QEMU_OPTION_semihosting_config:
3812 semihosting.enabled = true;
3813 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3814 optarg, false);
3815 if (opts != NULL) {
3816 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3817 true);
3818 const char *target = qemu_opt_get(opts, "target");
3819 if (target != NULL) {
3820 if (strcmp("native", target) == 0) {
3821 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3822 } else if (strcmp("gdb", target) == 0) {
3823 semihosting.target = SEMIHOSTING_TARGET_GDB;
3824 } else if (strcmp("auto", target) == 0) {
3825 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3826 } else {
3827 error_report("unsupported semihosting-config %s",
3828 optarg);
3829 exit(1);
3830 }
3831 } else {
3832 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3833 }
3834 /* Set semihosting argument count and vector */
3835 qemu_opt_foreach(opts, add_semihosting_arg,
3836 &semihosting, NULL);
3837 } else {
3838 error_report("unsupported semihosting-config %s", optarg);
3839 exit(1);
3840 }
3841 break;
3842 case QEMU_OPTION_tdf:
3843 warn_report("ignoring deprecated option");
3844 break;
3845 case QEMU_OPTION_name:
3846 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3847 optarg, true);
3848 if (!opts) {
3849 exit(1);
3850 }
3851 break;
3852 case QEMU_OPTION_prom_env:
3853 if (nb_prom_envs >= MAX_PROM_ENVS) {
3854 error_report("too many prom variables");
3855 exit(1);
3856 }
3857 prom_envs[nb_prom_envs] = optarg;
3858 nb_prom_envs++;
3859 break;
3860 case QEMU_OPTION_old_param:
3861 old_param = 1;
3862 break;
3863 case QEMU_OPTION_clock:
3864 /* Clock options no longer exist. Keep this option for
3865 * backward compatibility.
3866 */
3867 break;
3868 case QEMU_OPTION_startdate:
3869 configure_rtc_date_offset(optarg, 1);
3870 break;
3871 case QEMU_OPTION_rtc:
3872 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3873 false);
3874 if (!opts) {
3875 exit(1);
3876 }
3877 configure_rtc(opts);
3878 break;
3879 case QEMU_OPTION_tb_size:
3880 #ifndef CONFIG_TCG
3881 error_report("TCG is disabled");
3882 exit(1);
3883 #endif
3884 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3885 error_report("Invalid argument to -tb-size");
3886 exit(1);
3887 }
3888 break;
3889 case QEMU_OPTION_icount:
3890 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3891 optarg, true);
3892 if (!icount_opts) {
3893 exit(1);
3894 }
3895 break;
3896 case QEMU_OPTION_incoming:
3897 if (!incoming) {
3898 runstate_set(RUN_STATE_INMIGRATE);
3899 }
3900 incoming = optarg;
3901 break;
3902 case QEMU_OPTION_only_migratable:
3903 /*
3904 * TODO: we can remove this option one day, and we
3905 * should all use:
3906 *
3907 * "-global migration.only-migratable=true"
3908 */
3909 qemu_global_option("migration.only-migratable=true");
3910 break;
3911 case QEMU_OPTION_nodefaults:
3912 has_defaults = 0;
3913 break;
3914 case QEMU_OPTION_xen_domid:
3915 if (!(xen_available())) {
3916 error_report("Option not supported for this target");
3917 exit(1);
3918 }
3919 xen_domid = atoi(optarg);
3920 break;
3921 case QEMU_OPTION_xen_create:
3922 if (!(xen_available())) {
3923 error_report("Option not supported for this target");
3924 exit(1);
3925 }
3926 xen_mode = XEN_CREATE;
3927 break;
3928 case QEMU_OPTION_xen_attach:
3929 if (!(xen_available())) {
3930 error_report("Option not supported for this target");
3931 exit(1);
3932 }
3933 xen_mode = XEN_ATTACH;
3934 break;
3935 case QEMU_OPTION_xen_domid_restrict:
3936 if (!(xen_available())) {
3937 error_report("Option not supported for this target");
3938 exit(1);
3939 }
3940 xen_domid_restrict = true;
3941 break;
3942 case QEMU_OPTION_trace:
3943 g_free(trace_file);
3944 trace_file = trace_opt_parse(optarg);
3945 break;
3946 case QEMU_OPTION_readconfig:
3947 {
3948 int ret = qemu_read_config_file(optarg);
3949 if (ret < 0) {
3950 error_report("read config %s: %s", optarg,
3951 strerror(-ret));
3952 exit(1);
3953 }
3954 break;
3955 }
3956 case QEMU_OPTION_spice:
3957 olist = qemu_find_opts("spice");
3958 if (!olist) {
3959 error_report("spice support is disabled");
3960 exit(1);
3961 }
3962 opts = qemu_opts_parse_noisily(olist, optarg, false);
3963 if (!opts) {
3964 exit(1);
3965 }
3966 display_remote++;
3967 break;
3968 case QEMU_OPTION_writeconfig:
3969 {
3970 FILE *fp;
3971 if (strcmp(optarg, "-") == 0) {
3972 fp = stdout;
3973 } else {
3974 fp = fopen(optarg, "w");
3975 if (fp == NULL) {
3976 error_report("open %s: %s", optarg,
3977 strerror(errno));
3978 exit(1);
3979 }
3980 }
3981 qemu_config_write(fp);
3982 if (fp != stdout) {
3983 fclose(fp);
3984 }
3985 break;
3986 }
3987 case QEMU_OPTION_qtest:
3988 qtest_chrdev = optarg;
3989 break;
3990 case QEMU_OPTION_qtest_log:
3991 qtest_log = optarg;
3992 break;
3993 case QEMU_OPTION_sandbox:
3994 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3995 optarg, true);
3996 if (!opts) {
3997 exit(1);
3998 }
3999 break;
4000 case QEMU_OPTION_add_fd:
4001 #ifndef _WIN32
4002 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4003 optarg, false);
4004 if (!opts) {
4005 exit(1);
4006 }
4007 #else
4008 error_report("File descriptor passing is disabled on this "
4009 "platform");
4010 exit(1);
4011 #endif
4012 break;
4013 case QEMU_OPTION_object:
4014 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4015 optarg, true);
4016 if (!opts) {
4017 exit(1);
4018 }
4019 break;
4020 case QEMU_OPTION_realtime:
4021 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4022 optarg, false);
4023 if (!opts) {
4024 exit(1);
4025 }
4026 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4027 break;
4028 case QEMU_OPTION_msg:
4029 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4030 false);
4031 if (!opts) {
4032 exit(1);
4033 }
4034 configure_msg(opts);
4035 break;
4036 case QEMU_OPTION_dump_vmstate:
4037 if (vmstate_dump_file) {
4038 error_report("only one '-dump-vmstate' "
4039 "option may be given");
4040 exit(1);
4041 }
4042 vmstate_dump_file = fopen(optarg, "w");
4043 if (vmstate_dump_file == NULL) {
4044 error_report("open %s: %s", optarg, strerror(errno));
4045 exit(1);
4046 }
4047 break;
4048 default:
4049 os_parse_cmd_args(popt->index, optarg);
4050 }
4051 }
4052 }
4053 /*
4054 * Clear error location left behind by the loop.
4055 * Best done right after the loop. Do not insert code here!
4056 */
4057 loc_set_none();
4058
4059 replay_configure(icount_opts);
4060
4061 machine_class = select_machine();
4062
4063 set_memory_options(&ram_slots, &maxram_size, machine_class);
4064
4065 os_daemonize();
4066 rcu_disable_atfork();
4067
4068 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4069 error_report("could not acquire pid file: %s", strerror(errno));
4070 exit(1);
4071 }
4072
4073 if (qemu_init_main_loop(&main_loop_err)) {
4074 error_report_err(main_loop_err);
4075 exit(1);
4076 }
4077
4078 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4079 parse_sandbox, NULL, NULL)) {
4080 exit(1);
4081 }
4082
4083 if (qemu_opts_foreach(qemu_find_opts("name"),
4084 parse_name, NULL, NULL)) {
4085 exit(1);
4086 }
4087
4088 #ifndef _WIN32
4089 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4090 parse_add_fd, NULL, NULL)) {
4091 exit(1);
4092 }
4093
4094 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4095 cleanup_add_fd, NULL, NULL)) {
4096 exit(1);
4097 }
4098 #endif
4099
4100 current_machine = MACHINE(object_new(object_class_get_name(
4101 OBJECT_CLASS(machine_class))));
4102 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4103 exit(0);
4104 }
4105 object_property_add_child(object_get_root(), "machine",
4106 OBJECT(current_machine), &error_abort);
4107
4108 if (machine_class->minimum_page_bits) {
4109 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4110 /* This would be a board error: specifying a minimum smaller than
4111 * a target's compile-time fixed setting.
4112 */
4113 g_assert_not_reached();
4114 }
4115 }
4116
4117 cpu_exec_init_all();
4118
4119 if (machine_class->hw_version) {
4120 qemu_set_hw_version(machine_class->hw_version);
4121 }
4122
4123 if (cpu_model && is_help_option(cpu_model)) {
4124 list_cpus(stdout, &fprintf, cpu_model);
4125 exit(0);
4126 }
4127
4128 if (!trace_init_backends()) {
4129 exit(1);
4130 }
4131 trace_init_file(trace_file);
4132
4133 /* Open the logfile at this point and set the log mask if necessary.
4134 */
4135 if (log_file) {
4136 qemu_set_log_filename(log_file, &error_fatal);
4137 }
4138
4139 if (log_mask) {
4140 int mask;
4141 mask = qemu_str_to_log_mask(log_mask);
4142 if (!mask) {
4143 qemu_print_log_usage(stdout);
4144 exit(1);
4145 }
4146 qemu_set_log(mask);
4147 } else {
4148 qemu_set_log(0);
4149 }
4150
4151 /* add configured firmware directories */
4152 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4153 for (i = 0; dirs[i] != NULL; i++) {
4154 qemu_add_data_dir(dirs[i]);
4155 }
4156 g_strfreev(dirs);
4157
4158 /* try to find datadir relative to the executable path */
4159 dir = os_find_datadir();
4160 qemu_add_data_dir(dir);
4161 g_free(dir);
4162
4163 /* add the datadir specified when building */
4164 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4165
4166 /* -L help lists the data directories and exits. */
4167 if (list_data_dirs) {
4168 for (i = 0; i < data_dir_idx; i++) {
4169 printf("%s\n", data_dir[i]);
4170 }
4171 exit(0);
4172 }
4173
4174 /* machine_class: default to UP */
4175 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4176 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4177 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4178
4179 /* default to machine_class->default_cpus */
4180 smp_cpus = machine_class->default_cpus;
4181 max_cpus = machine_class->default_cpus;
4182
4183 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4184
4185 /* sanity-check smp_cpus and max_cpus against machine_class */
4186 if (smp_cpus < machine_class->min_cpus) {
4187 error_report("Invalid SMP CPUs %d. The min CPUs "
4188 "supported by machine '%s' is %d", smp_cpus,
4189 machine_class->name, machine_class->min_cpus);
4190 exit(1);
4191 }
4192 if (max_cpus > machine_class->max_cpus) {
4193 error_report("Invalid SMP CPUs %d. The max CPUs "
4194 "supported by machine '%s' is %d", max_cpus,
4195 machine_class->name, machine_class->max_cpus);
4196 exit(1);
4197 }
4198
4199 /*
4200 * Get the default machine options from the machine if it is not already
4201 * specified either by the configuration file or by the command line.
4202 */
4203 if (machine_class->default_machine_opts) {
4204 qemu_opts_set_defaults(qemu_find_opts("machine"),
4205 machine_class->default_machine_opts, 0);
4206 }
4207
4208 qemu_opts_foreach(qemu_find_opts("device"),
4209 default_driver_check, NULL, NULL);
4210 qemu_opts_foreach(qemu_find_opts("global"),
4211 default_driver_check, NULL, NULL);
4212
4213 if (!vga_model && !default_vga) {
4214 vga_interface_type = VGA_DEVICE;
4215 }
4216 if (!has_defaults || machine_class->no_serial) {
4217 default_serial = 0;
4218 }
4219 if (!has_defaults || machine_class->no_parallel) {
4220 default_parallel = 0;
4221 }
4222 if (!has_defaults || !machine_class->use_virtcon) {
4223 default_virtcon = 0;
4224 }
4225 if (!has_defaults || !machine_class->use_sclp) {
4226 default_sclp = 0;
4227 }
4228 if (!has_defaults || machine_class->no_floppy) {
4229 default_floppy = 0;
4230 }
4231 if (!has_defaults || machine_class->no_cdrom) {
4232 default_cdrom = 0;
4233 }
4234 if (!has_defaults || machine_class->no_sdcard) {
4235 default_sdcard = 0;
4236 }
4237 if (!has_defaults) {
4238 default_monitor = 0;
4239 default_net = 0;
4240 default_vga = 0;
4241 }
4242
4243 if (is_daemonized()) {
4244 /* According to documentation and historically, -nographic redirects
4245 * serial port, parallel port and monitor to stdio, which does not work
4246 * with -daemonize. We can redirect these to null instead, but since
4247 * -nographic is legacy, let's just error out.
4248 * We disallow -nographic only if all other ports are not redirected
4249 * explicitly, to not break existing legacy setups which uses
4250 * -nographic _and_ redirects all ports explicitly - this is valid
4251 * usage, -nographic is just a no-op in this case.
4252 */
4253 if (nographic
4254 && (default_parallel || default_serial
4255 || default_monitor || default_virtcon)) {
4256 error_report("-nographic cannot be used with -daemonize");
4257 exit(1);
4258 }
4259 #ifdef CONFIG_CURSES
4260 if (dpy.type == DISPLAY_TYPE_CURSES) {
4261 error_report("curses display cannot be used with -daemonize");
4262 exit(1);
4263 }
4264 #endif
4265 }
4266
4267 if (nographic) {
4268 if (default_parallel)
4269 add_device_config(DEV_PARALLEL, "null");
4270 if (default_serial && default_monitor) {
4271 add_device_config(DEV_SERIAL, "mon:stdio");
4272 } else if (default_virtcon && default_monitor) {
4273 add_device_config(DEV_VIRTCON, "mon:stdio");
4274 } else if (default_sclp && default_monitor) {
4275 add_device_config(DEV_SCLP, "mon:stdio");
4276 } else {
4277 if (default_serial)
4278 add_device_config(DEV_SERIAL, "stdio");
4279 if (default_virtcon)
4280 add_device_config(DEV_VIRTCON, "stdio");
4281 if (default_sclp) {
4282 add_device_config(DEV_SCLP, "stdio");
4283 }
4284 if (default_monitor)
4285 monitor_parse("stdio", "readline", false);
4286 }
4287 } else {
4288 if (default_serial)
4289 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4290 if (default_parallel)
4291 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4292 if (default_monitor)
4293 monitor_parse("vc:80Cx24C", "readline", false);
4294 if (default_virtcon)
4295 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4296 if (default_sclp) {
4297 add_device_config(DEV_SCLP, "vc:80Cx24C");
4298 }
4299 }
4300
4301 #if defined(CONFIG_VNC)
4302 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4303 display_remote++;
4304 }
4305 #endif
4306 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4307 #if defined(CONFIG_GTK)
4308 dpy.type = DISPLAY_TYPE_GTK;
4309 #elif defined(CONFIG_SDL)
4310 dpy.type = DISPLAY_TYPE_SDL;
4311 #elif defined(CONFIG_COCOA)
4312 dpy.type = DISPLAY_TYPE_COCOA;
4313 #elif defined(CONFIG_VNC)
4314 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4315 #else
4316 dpy.type = DISPLAY_TYPE_NONE;
4317 #endif
4318 }
4319 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4320 dpy.type = DISPLAY_TYPE_NONE;
4321 }
4322
4323 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4324 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4325 "for SDL, ignoring option");
4326 }
4327 if (dpy.has_window_close &&
4328 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4329 error_report("-no-quit is only valid for GTK and SDL, "
4330 "ignoring option");
4331 }
4332
4333 qemu_display_early_init(&dpy);
4334 qemu_console_early_init();
4335
4336 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4337 #if defined(CONFIG_OPENGL)
4338 error_report("OpenGL is not supported by the display");
4339 #else
4340 error_report("OpenGL support is disabled");
4341 #endif
4342 exit(1);
4343 }
4344
4345 page_size_init();
4346 socket_init();
4347
4348 if (qemu_opts_foreach(qemu_find_opts("object"),
4349 user_creatable_add_opts_foreach,
4350 object_create_initial, NULL)) {
4351 exit(1);
4352 }
4353
4354 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4355 chardev_init_func, NULL, NULL)) {
4356 exit(1);
4357 }
4358
4359 #ifdef CONFIG_VIRTFS
4360 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4361 fsdev_init_func, NULL, NULL)) {
4362 exit(1);
4363 }
4364 #endif
4365
4366 if (qemu_opts_foreach(qemu_find_opts("device"),
4367 device_help_func, NULL, NULL)) {
4368 exit(0);
4369 }
4370
4371 machine_opts = qemu_get_machine_opts();
4372 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4373 NULL)) {
4374 object_unref(OBJECT(current_machine));
4375 exit(1);
4376 }
4377
4378 configure_accelerator(current_machine);
4379
4380 /*
4381 * Register all the global properties, including accel properties,
4382 * machine properties, and user-specified ones.
4383 */
4384 register_global_properties(current_machine);
4385
4386 /*
4387 * Migration object can only be created after global properties
4388 * are applied correctly.
4389 */
4390 migration_object_init();
4391
4392 if (qtest_chrdev) {
4393 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4394 }
4395
4396 machine_opts = qemu_get_machine_opts();
4397 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4398 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4399 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4400 bios_name = qemu_opt_get(machine_opts, "firmware");
4401
4402 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4403 if (opts) {
4404 boot_order = qemu_opt_get(opts, "order");
4405 if (boot_order) {
4406 validate_bootdevices(boot_order, &error_fatal);
4407 }
4408
4409 boot_once = qemu_opt_get(opts, "once");
4410 if (boot_once) {
4411 validate_bootdevices(boot_once, &error_fatal);
4412 }
4413
4414 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4415 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4416 }
4417
4418 if (!boot_order) {
4419 boot_order = machine_class->default_boot_order;
4420 }
4421
4422 if (!kernel_cmdline) {
4423 kernel_cmdline = "";
4424 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4425 }
4426
4427 linux_boot = (kernel_filename != NULL);
4428
4429 if (!linux_boot && *kernel_cmdline != '\0') {
4430 error_report("-append only allowed with -kernel option");
4431 exit(1);
4432 }
4433
4434 if (!linux_boot && initrd_filename != NULL) {
4435 error_report("-initrd only allowed with -kernel option");
4436 exit(1);
4437 }
4438
4439 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4440 /* fall back to the -kernel/-append */
4441 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4442 }
4443
4444 os_set_line_buffering();
4445
4446 /* spice needs the timers to be initialized by this point */
4447 qemu_spice_init();
4448
4449 cpu_ticks_init();
4450 if (icount_opts) {
4451 if (!tcg_enabled()) {
4452 error_report("-icount is not allowed with hardware virtualization");
4453 exit(1);
4454 }
4455 configure_icount(icount_opts, &error_abort);
4456 qemu_opts_del(icount_opts);
4457 }
4458
4459 if (tcg_enabled()) {
4460 qemu_tcg_configure(accel_opts, &error_fatal);
4461 }
4462
4463 if (default_net) {
4464 QemuOptsList *net = qemu_find_opts("net");
4465 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4466 #ifdef CONFIG_SLIRP
4467 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4468 #endif
4469 }
4470
4471 colo_info_init();
4472
4473 if (net_init_clients() < 0) {
4474 exit(1);
4475 }
4476
4477 if (qemu_opts_foreach(qemu_find_opts("object"),
4478 user_creatable_add_opts_foreach,
4479 object_create_delayed, NULL)) {
4480 exit(1);
4481 }
4482
4483 if (tpm_init() < 0) {
4484 exit(1);
4485 }
4486
4487 /* init the bluetooth world */
4488 if (foreach_device_config(DEV_BT, bt_parse))
4489 exit(1);
4490
4491 if (!xen_enabled()) {
4492 /* On 32-bit hosts, QEMU is limited by virtual address space */
4493 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4494 error_report("at most 2047 MB RAM can be simulated");
4495 exit(1);
4496 }
4497 }
4498
4499 blk_mig_init();
4500 ram_mig_init();
4501
4502 /* If the currently selected machine wishes to override the units-per-bus
4503 * property of its default HBA interface type, do so now. */
4504 if (machine_class->units_per_default_bus) {
4505 override_max_devs(machine_class->block_default_type,
4506 machine_class->units_per_default_bus);
4507 }
4508
4509 /* open the virtual block devices */
4510 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4511 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4512
4513 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4514 loc_push_restore(&bdo->loc);
4515 qmp_blockdev_add(bdo->bdo, &error_fatal);
4516 loc_pop(&bdo->loc);
4517 qapi_free_BlockdevOptions(bdo->bdo);
4518 g_free(bdo);
4519 }
4520 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4521 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4522 NULL, NULL);
4523 }
4524 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4525 &machine_class->block_default_type, NULL)) {
4526 exit(1);
4527 }
4528
4529 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4530 CDROM_OPTS);
4531 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4532 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4533
4534 if (qemu_opts_foreach(qemu_find_opts("mon"),
4535 mon_init_func, NULL, NULL)) {
4536 exit(1);
4537 }
4538
4539 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4540 exit(1);
4541 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4542 exit(1);
4543 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4544 exit(1);
4545 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4546 exit(1);
4547 }
4548 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4549 exit(1);
4550
4551 /* If no default VGA is requested, the default is "none". */
4552 if (default_vga) {
4553 if (machine_class->default_display) {
4554 vga_model = machine_class->default_display;
4555 } else if (vga_interface_available(VGA_CIRRUS)) {
4556 vga_model = "cirrus";
4557 } else if (vga_interface_available(VGA_STD)) {
4558 vga_model = "std";
4559 }
4560 }
4561 if (vga_model) {
4562 select_vgahw(vga_model);
4563 }
4564
4565 if (watchdog) {
4566 i = select_watchdog(watchdog);
4567 if (i > 0)
4568 exit (i == 1 ? 1 : 0);
4569 }
4570
4571 /* This checkpoint is required by replay to separate prior clock
4572 reading from the other reads, because timer polling functions query
4573 clock values from the log. */
4574 replay_checkpoint(CHECKPOINT_INIT);
4575 qdev_machine_init();
4576
4577 current_machine->ram_size = ram_size;
4578 current_machine->maxram_size = maxram_size;
4579 current_machine->ram_slots = ram_slots;
4580 current_machine->boot_order = boot_order;
4581 current_machine->cpu_model = cpu_model;
4582
4583 /* parse features once if machine provides default cpu_type */
4584 if (machine_class->default_cpu_type) {
4585 current_machine->cpu_type = machine_class->default_cpu_type;
4586 if (cpu_model) {
4587 current_machine->cpu_type =
4588 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4589 }
4590 }
4591 parse_numa_opts(current_machine);
4592
4593 machine_run_board_init(current_machine);
4594
4595 realtime_init();
4596
4597 soundhw_init();
4598
4599 if (hax_enabled()) {
4600 hax_sync_vcpus();
4601 }
4602
4603 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4604 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4605 exit(1);
4606 }
4607
4608 /* init USB devices */
4609 if (machine_usb(current_machine)) {
4610 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4611 exit(1);
4612 }
4613
4614 /* Check if IGD GFX passthrough. */
4615 igd_gfx_passthru();
4616
4617 /* init generic devices */
4618 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4619 if (qemu_opts_foreach(qemu_find_opts("device"),
4620 device_init_func, NULL, NULL)) {
4621 exit(1);
4622 }
4623
4624 cpu_synchronize_all_post_init();
4625
4626 rom_reset_order_override();
4627
4628 /*
4629 * Create frontends for -drive if=scsi leftovers.
4630 * Normally, frontends for -drive get created by machine
4631 * initialization for onboard SCSI HBAs. However, we create a few
4632 * more ever since SCSI qdevification, but this is pretty much an
4633 * implementation accident, and deprecated.
4634 */
4635 scsi_legacy_handle_cmdline();
4636
4637 /* Did we create any drives that we failed to create a device for? */
4638 drive_check_orphaned();
4639
4640 /* Don't warn about the default network setup that you get if
4641 * no command line -net or -netdev options are specified. There
4642 * are two cases that we would otherwise complain about:
4643 * (1) board doesn't support a NIC but the implicit "-net nic"
4644 * requested one
4645 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4646 * sets up a nic that isn't connected to anything.
4647 */
4648 if (!default_net) {
4649 net_check_clients();
4650 }
4651
4652
4653 if (boot_once) {
4654 qemu_boot_set(boot_once, &error_fatal);
4655 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4656 }
4657
4658 /* init local displays */
4659 ds = init_displaystate();
4660 qemu_display_init(ds, &dpy);
4661
4662 /* must be after terminal init, SDL library changes signal handlers */
4663 os_setup_signal_handling();
4664
4665 /* init remote displays */
4666 #ifdef CONFIG_VNC
4667 qemu_opts_foreach(qemu_find_opts("vnc"),
4668 vnc_init_func, NULL, NULL);
4669 #endif
4670
4671 if (using_spice) {
4672 qemu_spice_display_init();
4673 }
4674
4675 #ifdef CONFIG_OPENGL_DMABUF
4676 if (dpy.type == DISPLAY_TYPE_EGL_HEADLESS) {
4677 egl_headless_init(&dpy);
4678 }
4679 #endif
4680
4681 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4682 exit(1);
4683 }
4684
4685 qdev_machine_creation_done();
4686
4687 /* TODO: once all bus devices are qdevified, this should be done
4688 * when bus is created by qdev.c */
4689 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4690 qemu_run_machine_init_done_notifiers();
4691
4692 if (rom_check_and_register_reset() != 0) {
4693 error_report("rom check and register reset failed");
4694 exit(1);
4695 }
4696
4697 replay_start();
4698
4699 /* This checkpoint is required by replay to separate prior clock
4700 reading from the other reads, because timer polling functions query
4701 clock values from the log. */
4702 replay_checkpoint(CHECKPOINT_RESET);
4703 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4704 register_global_state();
4705 if (replay_mode != REPLAY_MODE_NONE) {
4706 replay_vmstate_init();
4707 } else if (loadvm) {
4708 Error *local_err = NULL;
4709 if (load_snapshot(loadvm, &local_err) < 0) {
4710 error_report_err(local_err);
4711 autostart = 0;
4712 }
4713 }
4714
4715 qdev_prop_check_globals();
4716 if (vmstate_dump_file) {
4717 /* dump and exit */
4718 dump_vmstate_json_to_file(vmstate_dump_file);
4719 return 0;
4720 }
4721
4722 if (incoming) {
4723 Error *local_err = NULL;
4724 qemu_start_incoming_migration(incoming, &local_err);
4725 if (local_err) {
4726 error_reportf_err(local_err, "-incoming %s: ", incoming);
4727 exit(1);
4728 }
4729 } else if (autostart) {
4730 vm_start();
4731 }
4732
4733 os_setup_post();
4734
4735 main_loop();
4736 replay_disable_events();
4737
4738 /* The ordering of the following is delicate. Stop vcpus to prevent new
4739 * I/O requests being queued by the guest. Then stop IOThreads (this
4740 * includes a drain operation and completes all request processing). At
4741 * this point emulated devices are still associated with their IOThreads
4742 * (if any) but no longer have any work to do. Only then can we close
4743 * block devices safely because we know there is no more I/O coming.
4744 */
4745 pause_all_vcpus();
4746 iothread_stop_all();
4747 bdrv_close_all();
4748
4749 res_free();
4750
4751 /* vhost-user must be cleaned up before chardevs. */
4752 tpm_cleanup();
4753 net_cleanup();
4754 audio_cleanup();
4755 monitor_cleanup();
4756 qemu_chr_cleanup();
4757 user_creatable_cleanup();
4758 migration_object_finalize();
4759 /* TODO: unref root container, check all devices are ok */
4760
4761 return 0;
4762 }
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