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backup: use copy_bitmap in incremental backup
[qemu/ar7.git] / vl.c
blobfc8bd9372f8f9ae6c380817e26c9592b2083cd20
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 #include "qemu/osdep.h"
25 #include "qemu-version.h"
26 #include "qemu/cutils.h"
27 #include "qemu/help_option.h"
28 #include "qemu/uuid.h"
29
30 #ifdef CONFIG_SECCOMP
31 #include "sysemu/seccomp.h"
32 #include "sys/prctl.h"
33 #endif
34
35 #ifdef CONFIG_SDL
36 #if defined(__APPLE__) || defined(main)
37 #include <SDL.h>
38 int qemu_main(int argc, char **argv, char **envp);
39 int main(int argc, char **argv)
40 {
41 return qemu_main(argc, argv, NULL);
42 }
43 #undef main
44 #define main qemu_main
45 #endif
46 #endif /* CONFIG_SDL */
47
48 #ifdef CONFIG_COCOA
49 #undef main
50 #define main qemu_main
51 #endif /* CONFIG_COCOA */
52
53
54 #include "qemu/error-report.h"
55 #include "qemu/sockets.h"
56 #include "hw/hw.h"
57 #include "hw/boards.h"
58 #include "sysemu/accel.h"
59 #include "hw/usb.h"
60 #include "hw/i386/pc.h"
61 #include "hw/isa/isa.h"
62 #include "hw/scsi/scsi.h"
63 #include "hw/bt.h"
64 #include "sysemu/watchdog.h"
65 #include "hw/smbios/smbios.h"
66 #include "hw/acpi/acpi.h"
67 #include "hw/xen/xen.h"
68 #include "hw/qdev.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "sysemu/bt.h"
72 #include "net/net.h"
73 #include "net/slirp.h"
74 #include "monitor/monitor.h"
75 #include "ui/console.h"
76 #include "ui/input.h"
77 #include "sysemu/sysemu.h"
78 #include "sysemu/numa.h"
79 #include "exec/gdbstub.h"
80 #include "qemu/timer.h"
81 #include "chardev/char.h"
82 #include "qemu/bitmap.h"
83 #include "qemu/log.h"
84 #include "sysemu/blockdev.h"
85 #include "hw/block/block.h"
86 #include "migration/misc.h"
87 #include "migration/snapshot.h"
88 #include "migration/global_state.h"
89 #include "sysemu/tpm.h"
90 #include "sysemu/dma.h"
91 #include "hw/audio/soundhw.h"
92 #include "audio/audio.h"
93 #include "sysemu/cpus.h"
94 #include "migration/colo.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qapi/qobject-input-visitor.h"
99 #include "qapi-visit.h"
100 #include "qapi/qmp/qjson.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qmp-commands.h"
105 #include "qemu/main-loop.h"
106 #ifdef CONFIG_VIRTFS
107 #include "fsdev/qemu-fsdev.h"
108 #endif
109 #include "sysemu/qtest.h"
110
111 #include "disas/disas.h"
112
113
114 #include "slirp/libslirp.h"
115
116 #include "trace-root.h"
117 #include "trace/control.h"
118 #include "qemu/queue.h"
119 #include "sysemu/arch_init.h"
120
121 #include "ui/qemu-spice.h"
122 #include "qapi/string-input-visitor.h"
123 #include "qapi/opts-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "qapi-event.h"
126 #include "exec/semihost.h"
127 #include "crypto/init.h"
128 #include "sysemu/replay.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133 #define MAX_SCLP_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int request_opengl = -1;
140 int display_opengl;
141 const char* keyboard_layout = NULL;
142 ram_addr_t ram_size;
143 const char *mem_path = NULL;
144 int mem_prealloc = 0; /* force preallocation of physical target memory */
145 bool enable_mlock = false;
146 int nb_nics;
147 NICInfo nd_table[MAX_NICS];
148 int autostart;
149 static int rtc_utc = 1;
150 static int rtc_date_offset = -1; /* -1 means no change */
151 QEMUClockType rtc_clock;
152 int vga_interface_type = VGA_NONE;
153 static int full_screen = 0;
154 static int no_frame = 0;
155 int no_quit = 0;
156 static bool grab_on_hover;
157 Chardev *serial_hds[MAX_SERIAL_PORTS];
158 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
159 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
160 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
161 int win2k_install_hack = 0;
162 int singlestep = 0;
163 int smp_cpus;
164 unsigned int max_cpus;
165 int smp_cores = 1;
166 int smp_threads = 1;
167 int acpi_enabled = 1;
168 int no_hpet = 0;
169 int fd_bootchk = 1;
170 static int no_reboot;
171 int no_shutdown = 0;
172 int cursor_hide = 1;
173 int graphic_rotate = 0;
174 const char *watchdog;
175 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
176 int nb_option_roms;
177 int old_param = 0;
178 const char *qemu_name;
179 int alt_grab = 0;
180 int ctrl_grab = 0;
181 unsigned int nb_prom_envs = 0;
182 const char *prom_envs[MAX_PROM_ENVS];
183 int boot_menu;
184 bool boot_strict;
185 uint8_t *boot_splash_filedata;
186 size_t boot_splash_filedata_size;
187 uint8_t qemu_extra_params_fw[2];
188
189 int icount_align_option;
190
191 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
192 * little-endian "wire format" described in the SMBIOS 2.6 specification.
193 */
194 QemuUUID qemu_uuid;
195 bool qemu_uuid_set;
196
197 static NotifierList exit_notifiers =
198 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
199
200 static NotifierList machine_init_done_notifiers =
201 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
202
203 bool xen_allowed;
204 uint32_t xen_domid;
205 enum xen_mode xen_mode = XEN_EMULATE;
206 bool xen_domid_restrict;
207
208 static int has_defaults = 1;
209 static int default_serial = 1;
210 static int default_parallel = 1;
211 static int default_virtcon = 1;
212 static int default_sclp = 1;
213 static int default_monitor = 1;
214 static int default_floppy = 1;
215 static int default_cdrom = 1;
216 static int default_sdcard = 1;
217 static int default_vga = 1;
218 static int default_net = 1;
219
220 static struct {
221 const char *driver;
222 int *flag;
223 } default_list[] = {
224 { .driver = "isa-serial", .flag = &default_serial },
225 { .driver = "isa-parallel", .flag = &default_parallel },
226 { .driver = "isa-fdc", .flag = &default_floppy },
227 { .driver = "floppy", .flag = &default_floppy },
228 { .driver = "ide-cd", .flag = &default_cdrom },
229 { .driver = "ide-hd", .flag = &default_cdrom },
230 { .driver = "ide-drive", .flag = &default_cdrom },
231 { .driver = "scsi-cd", .flag = &default_cdrom },
232 { .driver = "scsi-hd", .flag = &default_cdrom },
233 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
234 { .driver = "virtio-serial", .flag = &default_virtcon },
235 { .driver = "VGA", .flag = &default_vga },
236 { .driver = "isa-vga", .flag = &default_vga },
237 { .driver = "cirrus-vga", .flag = &default_vga },
238 { .driver = "isa-cirrus-vga", .flag = &default_vga },
239 { .driver = "vmware-svga", .flag = &default_vga },
240 { .driver = "qxl-vga", .flag = &default_vga },
241 { .driver = "virtio-vga", .flag = &default_vga },
242 };
243
244 static QemuOptsList qemu_rtc_opts = {
245 .name = "rtc",
246 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
247 .desc = {
248 {
249 .name = "base",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "clock",
253 .type = QEMU_OPT_STRING,
254 },{
255 .name = "driftfix",
256 .type = QEMU_OPT_STRING,
257 },
258 { /* end of list */ }
259 },
260 };
261
262 static QemuOptsList qemu_sandbox_opts = {
263 .name = "sandbox",
264 .implied_opt_name = "enable",
265 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
266 .desc = {
267 {
268 .name = "enable",
269 .type = QEMU_OPT_BOOL,
270 },
271 {
272 .name = "obsolete",
273 .type = QEMU_OPT_STRING,
274 },
275 {
276 .name = "elevateprivileges",
277 .type = QEMU_OPT_STRING,
278 },
279 {
280 .name = "spawn",
281 .type = QEMU_OPT_STRING,
282 },
283 {
284 .name = "resourcecontrol",
285 .type = QEMU_OPT_STRING,
286 },
287 { /* end of list */ }
288 },
289 };
290
291 static QemuOptsList qemu_option_rom_opts = {
292 .name = "option-rom",
293 .implied_opt_name = "romfile",
294 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
295 .desc = {
296 {
297 .name = "bootindex",
298 .type = QEMU_OPT_NUMBER,
299 }, {
300 .name = "romfile",
301 .type = QEMU_OPT_STRING,
302 },
303 { /* end of list */ }
304 },
305 };
306
307 static QemuOptsList qemu_machine_opts = {
308 .name = "machine",
309 .implied_opt_name = "type",
310 .merge_lists = true,
311 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
312 .desc = {
313 /*
314 * no elements => accept any
315 * sanity checking will happen later
316 * when setting machine properties
317 */
318 { }
319 },
320 };
321
322 static QemuOptsList qemu_accel_opts = {
323 .name = "accel",
324 .implied_opt_name = "accel",
325 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
326 .merge_lists = true,
327 .desc = {
328 {
329 .name = "accel",
330 .type = QEMU_OPT_STRING,
331 .help = "Select the type of accelerator",
332 },
333 {
334 .name = "thread",
335 .type = QEMU_OPT_STRING,
336 .help = "Enable/disable multi-threaded TCG",
337 },
338 { /* end of list */ }
339 },
340 };
341
342 static QemuOptsList qemu_boot_opts = {
343 .name = "boot-opts",
344 .implied_opt_name = "order",
345 .merge_lists = true,
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
347 .desc = {
348 {
349 .name = "order",
350 .type = QEMU_OPT_STRING,
351 }, {
352 .name = "once",
353 .type = QEMU_OPT_STRING,
354 }, {
355 .name = "menu",
356 .type = QEMU_OPT_BOOL,
357 }, {
358 .name = "splash",
359 .type = QEMU_OPT_STRING,
360 }, {
361 .name = "splash-time",
362 .type = QEMU_OPT_STRING,
363 }, {
364 .name = "reboot-timeout",
365 .type = QEMU_OPT_STRING,
366 }, {
367 .name = "strict",
368 .type = QEMU_OPT_BOOL,
369 },
370 { /*End of list */ }
371 },
372 };
373
374 static QemuOptsList qemu_add_fd_opts = {
375 .name = "add-fd",
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
377 .desc = {
378 {
379 .name = "fd",
380 .type = QEMU_OPT_NUMBER,
381 .help = "file descriptor of which a duplicate is added to fd set",
382 },{
383 .name = "set",
384 .type = QEMU_OPT_NUMBER,
385 .help = "ID of the fd set to add fd to",
386 },{
387 .name = "opaque",
388 .type = QEMU_OPT_STRING,
389 .help = "free-form string used to describe fd",
390 },
391 { /* end of list */ }
392 },
393 };
394
395 static QemuOptsList qemu_object_opts = {
396 .name = "object",
397 .implied_opt_name = "qom-type",
398 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
399 .desc = {
400 { }
401 },
402 };
403
404 static QemuOptsList qemu_tpmdev_opts = {
405 .name = "tpmdev",
406 .implied_opt_name = "type",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
408 .desc = {
409 /* options are defined in the TPM backends */
410 { /* end of list */ }
411 },
412 };
413
414 static QemuOptsList qemu_realtime_opts = {
415 .name = "realtime",
416 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
417 .desc = {
418 {
419 .name = "mlock",
420 .type = QEMU_OPT_BOOL,
421 },
422 { /* end of list */ }
423 },
424 };
425
426 static QemuOptsList qemu_msg_opts = {
427 .name = "msg",
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
429 .desc = {
430 {
431 .name = "timestamp",
432 .type = QEMU_OPT_BOOL,
433 },
434 { /* end of list */ }
435 },
436 };
437
438 static QemuOptsList qemu_name_opts = {
439 .name = "name",
440 .implied_opt_name = "guest",
441 .merge_lists = true,
442 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
443 .desc = {
444 {
445 .name = "guest",
446 .type = QEMU_OPT_STRING,
447 .help = "Sets the name of the guest.\n"
448 "This name will be displayed in the SDL window caption.\n"
449 "The name will also be used for the VNC server",
450 }, {
451 .name = "process",
452 .type = QEMU_OPT_STRING,
453 .help = "Sets the name of the QEMU process, as shown in top etc",
454 }, {
455 .name = "debug-threads",
456 .type = QEMU_OPT_BOOL,
457 .help = "When enabled, name the individual threads; defaults off.\n"
458 "NOTE: The thread names are for debugging and not a\n"
459 "stable API.",
460 },
461 { /* End of list */ }
462 },
463 };
464
465 static QemuOptsList qemu_mem_opts = {
466 .name = "memory",
467 .implied_opt_name = "size",
468 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
469 .merge_lists = true,
470 .desc = {
471 {
472 .name = "size",
473 .type = QEMU_OPT_SIZE,
474 },
475 {
476 .name = "slots",
477 .type = QEMU_OPT_NUMBER,
478 },
479 {
480 .name = "maxmem",
481 .type = QEMU_OPT_SIZE,
482 },
483 { /* end of list */ }
484 },
485 };
486
487 static QemuOptsList qemu_icount_opts = {
488 .name = "icount",
489 .implied_opt_name = "shift",
490 .merge_lists = true,
491 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
492 .desc = {
493 {
494 .name = "shift",
495 .type = QEMU_OPT_STRING,
496 }, {
497 .name = "align",
498 .type = QEMU_OPT_BOOL,
499 }, {
500 .name = "sleep",
501 .type = QEMU_OPT_BOOL,
502 }, {
503 .name = "rr",
504 .type = QEMU_OPT_STRING,
505 }, {
506 .name = "rrfile",
507 .type = QEMU_OPT_STRING,
508 }, {
509 .name = "rrsnapshot",
510 .type = QEMU_OPT_STRING,
511 },
512 { /* end of list */ }
513 },
514 };
515
516 static QemuOptsList qemu_semihosting_config_opts = {
517 .name = "semihosting-config",
518 .implied_opt_name = "enable",
519 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
520 .desc = {
521 {
522 .name = "enable",
523 .type = QEMU_OPT_BOOL,
524 }, {
525 .name = "target",
526 .type = QEMU_OPT_STRING,
527 }, {
528 .name = "arg",
529 .type = QEMU_OPT_STRING,
530 },
531 { /* end of list */ }
532 },
533 };
534
535 static QemuOptsList qemu_fw_cfg_opts = {
536 .name = "fw_cfg",
537 .implied_opt_name = "name",
538 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
539 .desc = {
540 {
541 .name = "name",
542 .type = QEMU_OPT_STRING,
543 .help = "Sets the fw_cfg name of the blob to be inserted",
544 }, {
545 .name = "file",
546 .type = QEMU_OPT_STRING,
547 .help = "Sets the name of the file from which\n"
548 "the fw_cfg blob will be loaded",
549 }, {
550 .name = "string",
551 .type = QEMU_OPT_STRING,
552 .help = "Sets content of the blob to be inserted from a string",
553 },
554 { /* end of list */ }
555 },
556 };
557
558 /**
559 * Get machine options
560 *
561 * Returns: machine options (never null).
562 */
563 QemuOpts *qemu_get_machine_opts(void)
564 {
565 return qemu_find_opts_singleton("machine");
566 }
567
568 const char *qemu_get_vm_name(void)
569 {
570 return qemu_name;
571 }
572
573 static void res_free(void)
574 {
575 g_free(boot_splash_filedata);
576 boot_splash_filedata = NULL;
577 }
578
579 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
580 {
581 const char *driver = qemu_opt_get(opts, "driver");
582 int i;
583
584 if (!driver)
585 return 0;
586 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
587 if (strcmp(default_list[i].driver, driver) != 0)
588 continue;
589 *(default_list[i].flag) = 0;
590 }
591 return 0;
592 }
593
594 /***********************************************************/
595 /* QEMU state */
596
597 static RunState current_run_state = RUN_STATE_PRELAUNCH;
598
599 /* We use RUN_STATE__MAX but any invalid value will do */
600 static RunState vmstop_requested = RUN_STATE__MAX;
601 static QemuMutex vmstop_lock;
602
603 typedef struct {
604 RunState from;
605 RunState to;
606 } RunStateTransition;
607
608 static const RunStateTransition runstate_transitions_def[] = {
609 /* from -> to */
610 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
611 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
612 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
613
614 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
615 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
616 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
617 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
618 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
619 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
620 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
621 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
622 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
624 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
625 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
626
627 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
628 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
630
631 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
632 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
634
635 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
636 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
637 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
638 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
639 { RUN_STATE_PAUSED, RUN_STATE_COLO},
640
641 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
642 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
644
645 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
646 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
647 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
648
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
652 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
653 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
654
655 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
656 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
657
658 { RUN_STATE_COLO, RUN_STATE_RUNNING },
659
660 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
661 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
662 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
663 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
664 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
665 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
666 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
667 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
668 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
669 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
670 { RUN_STATE_RUNNING, RUN_STATE_COLO},
671
672 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
673
674 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
675 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
677
678 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
679 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
680 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
681 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
682 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
683 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
684
685 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
686 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
687 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
688 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
689
690 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
691 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
692 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
693
694 { RUN_STATE__MAX, RUN_STATE__MAX },
695 };
696
697 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
698
699 bool runstate_check(RunState state)
700 {
701 return current_run_state == state;
702 }
703
704 bool runstate_store(char *str, size_t size)
705 {
706 const char *state = RunState_str(current_run_state);
707 size_t len = strlen(state) + 1;
708
709 if (len > size) {
710 return false;
711 }
712 memcpy(str, state, len);
713 return true;
714 }
715
716 static void runstate_init(void)
717 {
718 const RunStateTransition *p;
719
720 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
721 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
722 runstate_valid_transitions[p->from][p->to] = true;
723 }
724
725 qemu_mutex_init(&vmstop_lock);
726 }
727
728 /* This function will abort() on invalid state transitions */
729 void runstate_set(RunState new_state)
730 {
731 assert(new_state < RUN_STATE__MAX);
732
733 if (current_run_state == new_state) {
734 return;
735 }
736
737 if (!runstate_valid_transitions[current_run_state][new_state]) {
738 error_report("invalid runstate transition: '%s' -> '%s'",
739 RunState_str(current_run_state),
740 RunState_str(new_state));
741 abort();
742 }
743 trace_runstate_set(new_state);
744 current_run_state = new_state;
745 }
746
747 int runstate_is_running(void)
748 {
749 return runstate_check(RUN_STATE_RUNNING);
750 }
751
752 bool runstate_needs_reset(void)
753 {
754 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
755 runstate_check(RUN_STATE_SHUTDOWN);
756 }
757
758 StatusInfo *qmp_query_status(Error **errp)
759 {
760 StatusInfo *info = g_malloc0(sizeof(*info));
761
762 info->running = runstate_is_running();
763 info->singlestep = singlestep;
764 info->status = current_run_state;
765
766 return info;
767 }
768
769 bool qemu_vmstop_requested(RunState *r)
770 {
771 qemu_mutex_lock(&vmstop_lock);
772 *r = vmstop_requested;
773 vmstop_requested = RUN_STATE__MAX;
774 qemu_mutex_unlock(&vmstop_lock);
775 return *r < RUN_STATE__MAX;
776 }
777
778 void qemu_system_vmstop_request_prepare(void)
779 {
780 qemu_mutex_lock(&vmstop_lock);
781 }
782
783 void qemu_system_vmstop_request(RunState state)
784 {
785 vmstop_requested = state;
786 qemu_mutex_unlock(&vmstop_lock);
787 qemu_notify_event();
788 }
789
790 /***********************************************************/
791 /* real time host monotonic timer */
792
793 static time_t qemu_time(void)
794 {
795 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
796 }
797
798 /***********************************************************/
799 /* host time/date access */
800 void qemu_get_timedate(struct tm *tm, int offset)
801 {
802 time_t ti = qemu_time();
803
804 ti += offset;
805 if (rtc_date_offset == -1) {
806 if (rtc_utc)
807 gmtime_r(&ti, tm);
808 else
809 localtime_r(&ti, tm);
810 } else {
811 ti -= rtc_date_offset;
812 gmtime_r(&ti, tm);
813 }
814 }
815
816 int qemu_timedate_diff(struct tm *tm)
817 {
818 time_t seconds;
819
820 if (rtc_date_offset == -1)
821 if (rtc_utc)
822 seconds = mktimegm(tm);
823 else {
824 struct tm tmp = *tm;
825 tmp.tm_isdst = -1; /* use timezone to figure it out */
826 seconds = mktime(&tmp);
827 }
828 else
829 seconds = mktimegm(tm) + rtc_date_offset;
830
831 return seconds - qemu_time();
832 }
833
834 static void configure_rtc_date_offset(const char *startdate, int legacy)
835 {
836 time_t rtc_start_date;
837 struct tm tm;
838
839 if (!strcmp(startdate, "now") && legacy) {
840 rtc_date_offset = -1;
841 } else {
842 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
843 &tm.tm_year,
844 &tm.tm_mon,
845 &tm.tm_mday,
846 &tm.tm_hour,
847 &tm.tm_min,
848 &tm.tm_sec) == 6) {
849 /* OK */
850 } else if (sscanf(startdate, "%d-%d-%d",
851 &tm.tm_year,
852 &tm.tm_mon,
853 &tm.tm_mday) == 3) {
854 tm.tm_hour = 0;
855 tm.tm_min = 0;
856 tm.tm_sec = 0;
857 } else {
858 goto date_fail;
859 }
860 tm.tm_year -= 1900;
861 tm.tm_mon--;
862 rtc_start_date = mktimegm(&tm);
863 if (rtc_start_date == -1) {
864 date_fail:
865 error_report("invalid date format");
866 error_printf("valid formats: "
867 "'2006-06-17T16:01:21' or '2006-06-17'\n");
868 exit(1);
869 }
870 rtc_date_offset = qemu_time() - rtc_start_date;
871 }
872 }
873
874 static void configure_rtc(QemuOpts *opts)
875 {
876 const char *value;
877
878 value = qemu_opt_get(opts, "base");
879 if (value) {
880 if (!strcmp(value, "utc")) {
881 rtc_utc = 1;
882 } else if (!strcmp(value, "localtime")) {
883 Error *blocker = NULL;
884 rtc_utc = 0;
885 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
886 "-rtc base=localtime");
887 replay_add_blocker(blocker);
888 } else {
889 configure_rtc_date_offset(value, 0);
890 }
891 }
892 value = qemu_opt_get(opts, "clock");
893 if (value) {
894 if (!strcmp(value, "host")) {
895 rtc_clock = QEMU_CLOCK_HOST;
896 } else if (!strcmp(value, "rt")) {
897 rtc_clock = QEMU_CLOCK_REALTIME;
898 } else if (!strcmp(value, "vm")) {
899 rtc_clock = QEMU_CLOCK_VIRTUAL;
900 } else {
901 error_report("invalid option value '%s'", value);
902 exit(1);
903 }
904 }
905 value = qemu_opt_get(opts, "driftfix");
906 if (value) {
907 if (!strcmp(value, "slew")) {
908 static GlobalProperty slew_lost_ticks = {
909 .driver = "mc146818rtc",
910 .property = "lost_tick_policy",
911 .value = "slew",
912 };
913
914 qdev_prop_register_global(&slew_lost_ticks);
915 } else if (!strcmp(value, "none")) {
916 /* discard is default */
917 } else {
918 error_report("invalid option value '%s'", value);
919 exit(1);
920 }
921 }
922 }
923
924 /***********************************************************/
925 /* Bluetooth support */
926 static int nb_hcis;
927 static int cur_hci;
928 static struct HCIInfo *hci_table[MAX_NICS];
929
930 struct HCIInfo *qemu_next_hci(void)
931 {
932 if (cur_hci == nb_hcis)
933 return &null_hci;
934
935 return hci_table[cur_hci++];
936 }
937
938 static int bt_hci_parse(const char *str)
939 {
940 struct HCIInfo *hci;
941 bdaddr_t bdaddr;
942
943 if (nb_hcis >= MAX_NICS) {
944 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
945 return -1;
946 }
947
948 hci = hci_init(str);
949 if (!hci)
950 return -1;
951
952 bdaddr.b[0] = 0x52;
953 bdaddr.b[1] = 0x54;
954 bdaddr.b[2] = 0x00;
955 bdaddr.b[3] = 0x12;
956 bdaddr.b[4] = 0x34;
957 bdaddr.b[5] = 0x56 + nb_hcis;
958 hci->bdaddr_set(hci, bdaddr.b);
959
960 hci_table[nb_hcis++] = hci;
961
962 return 0;
963 }
964
965 static void bt_vhci_add(int vlan_id)
966 {
967 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
968
969 if (!vlan->slave)
970 warn_report("adding a VHCI to an empty scatternet %i",
971 vlan_id);
972
973 bt_vhci_init(bt_new_hci(vlan));
974 }
975
976 static struct bt_device_s *bt_device_add(const char *opt)
977 {
978 struct bt_scatternet_s *vlan;
979 int vlan_id = 0;
980 char *endp = strstr(opt, ",vlan=");
981 int len = (endp ? endp - opt : strlen(opt)) + 1;
982 char devname[10];
983
984 pstrcpy(devname, MIN(sizeof(devname), len), opt);
985
986 if (endp) {
987 vlan_id = strtol(endp + 6, &endp, 0);
988 if (*endp) {
989 error_report("unrecognised bluetooth vlan Id");
990 return 0;
991 }
992 }
993
994 vlan = qemu_find_bt_vlan(vlan_id);
995
996 if (!vlan->slave)
997 warn_report("adding a slave device to an empty scatternet %i",
998 vlan_id);
999
1000 if (!strcmp(devname, "keyboard"))
1001 return bt_keyboard_init(vlan);
1002
1003 error_report("unsupported bluetooth device '%s'", devname);
1004 return 0;
1005 }
1006
1007 static int bt_parse(const char *opt)
1008 {
1009 const char *endp, *p;
1010 int vlan;
1011
1012 if (strstart(opt, "hci", &endp)) {
1013 if (!*endp || *endp == ',') {
1014 if (*endp)
1015 if (!strstart(endp, ",vlan=", 0))
1016 opt = endp + 1;
1017
1018 return bt_hci_parse(opt);
1019 }
1020 } else if (strstart(opt, "vhci", &endp)) {
1021 if (!*endp || *endp == ',') {
1022 if (*endp) {
1023 if (strstart(endp, ",vlan=", &p)) {
1024 vlan = strtol(p, (char **) &endp, 0);
1025 if (*endp) {
1026 error_report("bad scatternet '%s'", p);
1027 return 1;
1028 }
1029 } else {
1030 error_report("bad parameter '%s'", endp + 1);
1031 return 1;
1032 }
1033 } else
1034 vlan = 0;
1035
1036 bt_vhci_add(vlan);
1037 return 0;
1038 }
1039 } else if (strstart(opt, "device:", &endp))
1040 return !bt_device_add(endp);
1041
1042 error_report("bad bluetooth parameter '%s'", opt);
1043 return 1;
1044 }
1045
1046 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1047 {
1048 if (qemu_opt_get_bool(opts, "enable", false)) {
1049 #ifdef CONFIG_SECCOMP
1050 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1051 | QEMU_SECCOMP_SET_OBSOLETE;
1052 const char *value = NULL;
1053
1054 value = qemu_opt_get(opts, "obsolete");
1055 if (value) {
1056 if (g_str_equal(value, "allow")) {
1057 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1058 } else if (g_str_equal(value, "deny")) {
1059 /* this is the default option, this if is here
1060 * to provide a little bit of consistency for
1061 * the command line */
1062 } else {
1063 error_report("invalid argument for obsolete");
1064 return -1;
1065 }
1066 }
1067
1068 value = qemu_opt_get(opts, "elevateprivileges");
1069 if (value) {
1070 if (g_str_equal(value, "deny")) {
1071 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1072 } else if (g_str_equal(value, "children")) {
1073 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1074
1075 /* calling prctl directly because we're
1076 * not sure if host has CAP_SYS_ADMIN set*/
1077 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1078 error_report("failed to set no_new_privs "
1079 "aborting");
1080 return -1;
1081 }
1082 } else if (g_str_equal(value, "allow")) {
1083 /* default value */
1084 } else {
1085 error_report("invalid argument for elevateprivileges");
1086 return -1;
1087 }
1088 }
1089
1090 value = qemu_opt_get(opts, "spawn");
1091 if (value) {
1092 if (g_str_equal(value, "deny")) {
1093 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1094 } else if (g_str_equal(value, "allow")) {
1095 /* default value */
1096 } else {
1097 error_report("invalid argument for spawn");
1098 return -1;
1099 }
1100 }
1101
1102 value = qemu_opt_get(opts, "resourcecontrol");
1103 if (value) {
1104 if (g_str_equal(value, "deny")) {
1105 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1106 } else if (g_str_equal(value, "allow")) {
1107 /* default value */
1108 } else {
1109 error_report("invalid argument for resourcecontrol");
1110 return -1;
1111 }
1112 }
1113
1114 if (seccomp_start(seccomp_opts) < 0) {
1115 error_report("failed to install seccomp syscall filter "
1116 "in the kernel");
1117 return -1;
1118 }
1119 #else
1120 error_report("seccomp support is disabled");
1121 return -1;
1122 #endif
1123 }
1124
1125 return 0;
1126 }
1127
1128 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1129 {
1130 const char *proc_name;
1131
1132 if (qemu_opt_get(opts, "debug-threads")) {
1133 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1134 }
1135 qemu_name = qemu_opt_get(opts, "guest");
1136
1137 proc_name = qemu_opt_get(opts, "process");
1138 if (proc_name) {
1139 os_set_proc_name(proc_name);
1140 }
1141
1142 return 0;
1143 }
1144
1145 bool defaults_enabled(void)
1146 {
1147 return has_defaults;
1148 }
1149
1150 #ifndef _WIN32
1151 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1152 {
1153 int fd, dupfd, flags;
1154 int64_t fdset_id;
1155 const char *fd_opaque = NULL;
1156 AddfdInfo *fdinfo;
1157
1158 fd = qemu_opt_get_number(opts, "fd", -1);
1159 fdset_id = qemu_opt_get_number(opts, "set", -1);
1160 fd_opaque = qemu_opt_get(opts, "opaque");
1161
1162 if (fd < 0) {
1163 error_report("fd option is required and must be non-negative");
1164 return -1;
1165 }
1166
1167 if (fd <= STDERR_FILENO) {
1168 error_report("fd cannot be a standard I/O stream");
1169 return -1;
1170 }
1171
1172 /*
1173 * All fds inherited across exec() necessarily have FD_CLOEXEC
1174 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1175 */
1176 flags = fcntl(fd, F_GETFD);
1177 if (flags == -1 || (flags & FD_CLOEXEC)) {
1178 error_report("fd is not valid or already in use");
1179 return -1;
1180 }
1181
1182 if (fdset_id < 0) {
1183 error_report("set option is required and must be non-negative");
1184 return -1;
1185 }
1186
1187 #ifdef F_DUPFD_CLOEXEC
1188 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1189 #else
1190 dupfd = dup(fd);
1191 if (dupfd != -1) {
1192 qemu_set_cloexec(dupfd);
1193 }
1194 #endif
1195 if (dupfd == -1) {
1196 error_report("error duplicating fd: %s", strerror(errno));
1197 return -1;
1198 }
1199
1200 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1201 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1202 &error_abort);
1203 g_free(fdinfo);
1204
1205 return 0;
1206 }
1207
1208 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1209 {
1210 int fd;
1211
1212 fd = qemu_opt_get_number(opts, "fd", -1);
1213 close(fd);
1214
1215 return 0;
1216 }
1217 #endif
1218
1219 /***********************************************************/
1220 /* QEMU Block devices */
1221
1222 #define HD_OPTS "media=disk"
1223 #define CDROM_OPTS "media=cdrom"
1224 #define FD_OPTS ""
1225 #define PFLASH_OPTS ""
1226 #define MTD_OPTS ""
1227 #define SD_OPTS ""
1228
1229 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1230 {
1231 BlockInterfaceType *block_default_type = opaque;
1232
1233 return drive_new(opts, *block_default_type) == NULL;
1234 }
1235
1236 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1237 {
1238 if (qemu_opt_get(opts, "snapshot") == NULL) {
1239 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1240 }
1241 return 0;
1242 }
1243
1244 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1245 int index, const char *optstr)
1246 {
1247 QemuOpts *opts;
1248 DriveInfo *dinfo;
1249
1250 if (!enable || drive_get_by_index(type, index)) {
1251 return;
1252 }
1253
1254 opts = drive_add(type, index, NULL, optstr);
1255 if (snapshot) {
1256 drive_enable_snapshot(NULL, opts, NULL);
1257 }
1258
1259 dinfo = drive_new(opts, type);
1260 if (!dinfo) {
1261 exit(1);
1262 }
1263 dinfo->is_default = true;
1264
1265 }
1266
1267 static QemuOptsList qemu_smp_opts = {
1268 .name = "smp-opts",
1269 .implied_opt_name = "cpus",
1270 .merge_lists = true,
1271 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1272 .desc = {
1273 {
1274 .name = "cpus",
1275 .type = QEMU_OPT_NUMBER,
1276 }, {
1277 .name = "sockets",
1278 .type = QEMU_OPT_NUMBER,
1279 }, {
1280 .name = "cores",
1281 .type = QEMU_OPT_NUMBER,
1282 }, {
1283 .name = "threads",
1284 .type = QEMU_OPT_NUMBER,
1285 }, {
1286 .name = "maxcpus",
1287 .type = QEMU_OPT_NUMBER,
1288 },
1289 { /*End of list */ }
1290 },
1291 };
1292
1293 static void smp_parse(QemuOpts *opts)
1294 {
1295 if (opts) {
1296 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1297 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1298 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1299 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1300
1301 /* compute missing values, prefer sockets over cores over threads */
1302 if (cpus == 0 || sockets == 0) {
1303 sockets = sockets > 0 ? sockets : 1;
1304 cores = cores > 0 ? cores : 1;
1305 threads = threads > 0 ? threads : 1;
1306 if (cpus == 0) {
1307 cpus = cores * threads * sockets;
1308 }
1309 } else if (cores == 0) {
1310 threads = threads > 0 ? threads : 1;
1311 cores = cpus / (sockets * threads);
1312 cores = cores > 0 ? cores : 1;
1313 } else if (threads == 0) {
1314 threads = cpus / (cores * sockets);
1315 threads = threads > 0 ? threads : 1;
1316 } else if (sockets * cores * threads < cpus) {
1317 error_report("cpu topology: "
1318 "sockets (%u) * cores (%u) * threads (%u) < "
1319 "smp_cpus (%u)",
1320 sockets, cores, threads, cpus);
1321 exit(1);
1322 }
1323
1324 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1325
1326 if (max_cpus < cpus) {
1327 error_report("maxcpus must be equal to or greater than smp");
1328 exit(1);
1329 }
1330
1331 if (sockets * cores * threads > max_cpus) {
1332 error_report("cpu topology: "
1333 "sockets (%u) * cores (%u) * threads (%u) > "
1334 "maxcpus (%u)",
1335 sockets, cores, threads, max_cpus);
1336 exit(1);
1337 }
1338
1339 smp_cpus = cpus;
1340 smp_cores = cores;
1341 smp_threads = threads;
1342 }
1343
1344 if (smp_cpus > 1) {
1345 Error *blocker = NULL;
1346 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1347 replay_add_blocker(blocker);
1348 }
1349 }
1350
1351 static void realtime_init(void)
1352 {
1353 if (enable_mlock) {
1354 if (os_mlock() < 0) {
1355 error_report("locking memory failed");
1356 exit(1);
1357 }
1358 }
1359 }
1360
1361
1362 static void configure_msg(QemuOpts *opts)
1363 {
1364 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1365 }
1366
1367 /***********************************************************/
1368 /* Semihosting */
1369
1370 typedef struct SemihostingConfig {
1371 bool enabled;
1372 SemihostingTarget target;
1373 const char **argv;
1374 int argc;
1375 const char *cmdline; /* concatenated argv */
1376 } SemihostingConfig;
1377
1378 static SemihostingConfig semihosting;
1379
1380 bool semihosting_enabled(void)
1381 {
1382 return semihosting.enabled;
1383 }
1384
1385 SemihostingTarget semihosting_get_target(void)
1386 {
1387 return semihosting.target;
1388 }
1389
1390 const char *semihosting_get_arg(int i)
1391 {
1392 if (i >= semihosting.argc) {
1393 return NULL;
1394 }
1395 return semihosting.argv[i];
1396 }
1397
1398 int semihosting_get_argc(void)
1399 {
1400 return semihosting.argc;
1401 }
1402
1403 const char *semihosting_get_cmdline(void)
1404 {
1405 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1406 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1407 }
1408 return semihosting.cmdline;
1409 }
1410
1411 static int add_semihosting_arg(void *opaque,
1412 const char *name, const char *val,
1413 Error **errp)
1414 {
1415 SemihostingConfig *s = opaque;
1416 if (strcmp(name, "arg") == 0) {
1417 s->argc++;
1418 /* one extra element as g_strjoinv() expects NULL-terminated array */
1419 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1420 s->argv[s->argc - 1] = val;
1421 s->argv[s->argc] = NULL;
1422 }
1423 return 0;
1424 }
1425
1426 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1427 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1428 {
1429 char *cmd_token;
1430
1431 /* argv[0] */
1432 add_semihosting_arg(&semihosting, "arg", file, NULL);
1433
1434 /* split -append and initialize argv[1..n] */
1435 cmd_token = strtok(g_strdup(cmd), " ");
1436 while (cmd_token) {
1437 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1438 cmd_token = strtok(NULL, " ");
1439 }
1440 }
1441
1442 /* Now we still need this for compatibility with XEN. */
1443 bool has_igd_gfx_passthru;
1444 static void igd_gfx_passthru(void)
1445 {
1446 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1447 }
1448
1449 /***********************************************************/
1450 /* USB devices */
1451
1452 static int usb_device_add(const char *devname)
1453 {
1454 USBDevice *dev = NULL;
1455 #ifndef CONFIG_LINUX
1456 const char *p;
1457 #endif
1458
1459 if (!machine_usb(current_machine)) {
1460 return -1;
1461 }
1462
1463 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1464 dev = usbdevice_create(devname);
1465 if (dev)
1466 goto done;
1467
1468 /* the other ones */
1469 #ifndef CONFIG_LINUX
1470 /* only the linux version is qdev-ified, usb-bsd still needs this */
1471 if (strstart(devname, "host:", &p)) {
1472 dev = usb_host_device_open(usb_bus_find(-1), p);
1473 }
1474 #endif
1475 if (!dev)
1476 return -1;
1477
1478 done:
1479 return 0;
1480 }
1481
1482 static int usb_parse(const char *cmdline)
1483 {
1484 int r;
1485 r = usb_device_add(cmdline);
1486 if (r < 0) {
1487 error_report("could not add USB device '%s'", cmdline);
1488 }
1489 return r;
1490 }
1491
1492 /***********************************************************/
1493 /* machine registration */
1494
1495 MachineState *current_machine;
1496
1497 static MachineClass *find_machine(const char *name)
1498 {
1499 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1500 MachineClass *mc = NULL;
1501
1502 for (el = machines; el; el = el->next) {
1503 MachineClass *temp = el->data;
1504
1505 if (!strcmp(temp->name, name)) {
1506 mc = temp;
1507 break;
1508 }
1509 if (temp->alias &&
1510 !strcmp(temp->alias, name)) {
1511 mc = temp;
1512 break;
1513 }
1514 }
1515
1516 g_slist_free(machines);
1517 return mc;
1518 }
1519
1520 MachineClass *find_default_machine(void)
1521 {
1522 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1523 MachineClass *mc = NULL;
1524
1525 for (el = machines; el; el = el->next) {
1526 MachineClass *temp = el->data;
1527
1528 if (temp->is_default) {
1529 mc = temp;
1530 break;
1531 }
1532 }
1533
1534 g_slist_free(machines);
1535 return mc;
1536 }
1537
1538 MachineInfoList *qmp_query_machines(Error **errp)
1539 {
1540 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1541 MachineInfoList *mach_list = NULL;
1542
1543 for (el = machines; el; el = el->next) {
1544 MachineClass *mc = el->data;
1545 MachineInfoList *entry;
1546 MachineInfo *info;
1547
1548 info = g_malloc0(sizeof(*info));
1549 if (mc->is_default) {
1550 info->has_is_default = true;
1551 info->is_default = true;
1552 }
1553
1554 if (mc->alias) {
1555 info->has_alias = true;
1556 info->alias = g_strdup(mc->alias);
1557 }
1558
1559 info->name = g_strdup(mc->name);
1560 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1561 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1562
1563 entry = g_malloc0(sizeof(*entry));
1564 entry->value = info;
1565 entry->next = mach_list;
1566 mach_list = entry;
1567 }
1568
1569 g_slist_free(machines);
1570 return mach_list;
1571 }
1572
1573 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1574 {
1575 ObjectProperty *prop;
1576 ObjectPropertyIterator iter;
1577
1578 if (!qemu_opt_has_help_opt(opts)) {
1579 return 0;
1580 }
1581
1582 object_property_iter_init(&iter, OBJECT(machine));
1583 while ((prop = object_property_iter_next(&iter))) {
1584 if (!prop->set) {
1585 continue;
1586 }
1587
1588 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1589 prop->name, prop->type);
1590 if (prop->description) {
1591 error_printf(" (%s)\n", prop->description);
1592 } else {
1593 error_printf("\n");
1594 }
1595 }
1596
1597 return 1;
1598 }
1599
1600 /***********************************************************/
1601 /* main execution loop */
1602
1603 struct vm_change_state_entry {
1604 VMChangeStateHandler *cb;
1605 void *opaque;
1606 QLIST_ENTRY (vm_change_state_entry) entries;
1607 };
1608
1609 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1610
1611 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1612 void *opaque)
1613 {
1614 VMChangeStateEntry *e;
1615
1616 e = g_malloc0(sizeof (*e));
1617
1618 e->cb = cb;
1619 e->opaque = opaque;
1620 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1621 return e;
1622 }
1623
1624 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1625 {
1626 QLIST_REMOVE (e, entries);
1627 g_free (e);
1628 }
1629
1630 void vm_state_notify(int running, RunState state)
1631 {
1632 VMChangeStateEntry *e, *next;
1633
1634 trace_vm_state_notify(running, state);
1635
1636 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1637 e->cb(e->opaque, running, state);
1638 }
1639 }
1640
1641 static ShutdownCause reset_requested;
1642 static ShutdownCause shutdown_requested;
1643 static int shutdown_signal;
1644 static pid_t shutdown_pid;
1645 static int powerdown_requested;
1646 static int debug_requested;
1647 static int suspend_requested;
1648 static WakeupReason wakeup_reason;
1649 static NotifierList powerdown_notifiers =
1650 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1651 static NotifierList suspend_notifiers =
1652 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1653 static NotifierList wakeup_notifiers =
1654 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1655 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1656
1657 ShutdownCause qemu_shutdown_requested_get(void)
1658 {
1659 return shutdown_requested;
1660 }
1661
1662 ShutdownCause qemu_reset_requested_get(void)
1663 {
1664 return reset_requested;
1665 }
1666
1667 static int qemu_shutdown_requested(void)
1668 {
1669 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1670 }
1671
1672 static void qemu_kill_report(void)
1673 {
1674 if (!qtest_driver() && shutdown_signal) {
1675 if (shutdown_pid == 0) {
1676 /* This happens for eg ^C at the terminal, so it's worth
1677 * avoiding printing an odd message in that case.
1678 */
1679 error_report("terminating on signal %d", shutdown_signal);
1680 } else {
1681 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1682
1683 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1684 shutdown_signal, shutdown_pid,
1685 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1686 g_free(shutdown_cmd);
1687 }
1688 shutdown_signal = 0;
1689 }
1690 }
1691
1692 static ShutdownCause qemu_reset_requested(void)
1693 {
1694 ShutdownCause r = reset_requested;
1695
1696 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1697 reset_requested = SHUTDOWN_CAUSE_NONE;
1698 return r;
1699 }
1700 return SHUTDOWN_CAUSE_NONE;
1701 }
1702
1703 static int qemu_suspend_requested(void)
1704 {
1705 int r = suspend_requested;
1706 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1707 suspend_requested = 0;
1708 return r;
1709 }
1710 return false;
1711 }
1712
1713 static WakeupReason qemu_wakeup_requested(void)
1714 {
1715 return wakeup_reason;
1716 }
1717
1718 static int qemu_powerdown_requested(void)
1719 {
1720 int r = powerdown_requested;
1721 powerdown_requested = 0;
1722 return r;
1723 }
1724
1725 static int qemu_debug_requested(void)
1726 {
1727 int r = debug_requested;
1728 debug_requested = 0;
1729 return r;
1730 }
1731
1732 /*
1733 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1734 */
1735 void qemu_system_reset(ShutdownCause reason)
1736 {
1737 MachineClass *mc;
1738
1739 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1740
1741 cpu_synchronize_all_states();
1742
1743 if (mc && mc->reset) {
1744 mc->reset();
1745 } else {
1746 qemu_devices_reset();
1747 }
1748 if (reason) {
1749 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1750 &error_abort);
1751 }
1752 cpu_synchronize_all_post_reset();
1753 }
1754
1755 void qemu_system_guest_panicked(GuestPanicInformation *info)
1756 {
1757 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed\n");
1758
1759 if (current_cpu) {
1760 current_cpu->crash_occurred = true;
1761 }
1762 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1763 !!info, info, &error_abort);
1764 vm_stop(RUN_STATE_GUEST_PANICKED);
1765 if (!no_shutdown) {
1766 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1767 !!info, info, &error_abort);
1768 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1769 }
1770
1771 if (info) {
1772 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1773 qemu_log_mask(LOG_GUEST_ERROR, "HV crash parameters: (%#"PRIx64
1774 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1775 info->u.hyper_v.arg1,
1776 info->u.hyper_v.arg2,
1777 info->u.hyper_v.arg3,
1778 info->u.hyper_v.arg4,
1779 info->u.hyper_v.arg5);
1780 }
1781 qapi_free_GuestPanicInformation(info);
1782 }
1783 }
1784
1785 void qemu_system_reset_request(ShutdownCause reason)
1786 {
1787 if (no_reboot) {
1788 shutdown_requested = reason;
1789 } else {
1790 reset_requested = reason;
1791 }
1792 cpu_stop_current();
1793 qemu_notify_event();
1794 }
1795
1796 static void qemu_system_suspend(void)
1797 {
1798 pause_all_vcpus();
1799 notifier_list_notify(&suspend_notifiers, NULL);
1800 runstate_set(RUN_STATE_SUSPENDED);
1801 qapi_event_send_suspend(&error_abort);
1802 }
1803
1804 void qemu_system_suspend_request(void)
1805 {
1806 if (runstate_check(RUN_STATE_SUSPENDED)) {
1807 return;
1808 }
1809 suspend_requested = 1;
1810 cpu_stop_current();
1811 qemu_notify_event();
1812 }
1813
1814 void qemu_register_suspend_notifier(Notifier *notifier)
1815 {
1816 notifier_list_add(&suspend_notifiers, notifier);
1817 }
1818
1819 void qemu_system_wakeup_request(WakeupReason reason)
1820 {
1821 trace_system_wakeup_request(reason);
1822
1823 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1824 return;
1825 }
1826 if (!(wakeup_reason_mask & (1 << reason))) {
1827 return;
1828 }
1829 runstate_set(RUN_STATE_RUNNING);
1830 wakeup_reason = reason;
1831 qemu_notify_event();
1832 }
1833
1834 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1835 {
1836 if (enabled) {
1837 wakeup_reason_mask |= (1 << reason);
1838 } else {
1839 wakeup_reason_mask &= ~(1 << reason);
1840 }
1841 }
1842
1843 void qemu_register_wakeup_notifier(Notifier *notifier)
1844 {
1845 notifier_list_add(&wakeup_notifiers, notifier);
1846 }
1847
1848 void qemu_system_killed(int signal, pid_t pid)
1849 {
1850 shutdown_signal = signal;
1851 shutdown_pid = pid;
1852 no_shutdown = 0;
1853
1854 /* Cannot call qemu_system_shutdown_request directly because
1855 * we are in a signal handler.
1856 */
1857 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1858 qemu_notify_event();
1859 }
1860
1861 void qemu_system_shutdown_request(ShutdownCause reason)
1862 {
1863 trace_qemu_system_shutdown_request(reason);
1864 replay_shutdown_request(reason);
1865 shutdown_requested = reason;
1866 qemu_notify_event();
1867 }
1868
1869 static void qemu_system_powerdown(void)
1870 {
1871 qapi_event_send_powerdown(&error_abort);
1872 notifier_list_notify(&powerdown_notifiers, NULL);
1873 }
1874
1875 void qemu_system_powerdown_request(void)
1876 {
1877 trace_qemu_system_powerdown_request();
1878 powerdown_requested = 1;
1879 qemu_notify_event();
1880 }
1881
1882 void qemu_register_powerdown_notifier(Notifier *notifier)
1883 {
1884 notifier_list_add(&powerdown_notifiers, notifier);
1885 }
1886
1887 void qemu_system_debug_request(void)
1888 {
1889 debug_requested = 1;
1890 qemu_notify_event();
1891 }
1892
1893 static bool main_loop_should_exit(void)
1894 {
1895 RunState r;
1896 ShutdownCause request;
1897
1898 if (qemu_debug_requested()) {
1899 vm_stop(RUN_STATE_DEBUG);
1900 }
1901 if (qemu_suspend_requested()) {
1902 qemu_system_suspend();
1903 }
1904 request = qemu_shutdown_requested();
1905 if (request) {
1906 qemu_kill_report();
1907 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1908 &error_abort);
1909 if (no_shutdown) {
1910 vm_stop(RUN_STATE_SHUTDOWN);
1911 } else {
1912 return true;
1913 }
1914 }
1915 request = qemu_reset_requested();
1916 if (request) {
1917 pause_all_vcpus();
1918 qemu_system_reset(request);
1919 resume_all_vcpus();
1920 if (!runstate_check(RUN_STATE_RUNNING) &&
1921 !runstate_check(RUN_STATE_INMIGRATE)) {
1922 runstate_set(RUN_STATE_PRELAUNCH);
1923 }
1924 }
1925 if (qemu_wakeup_requested()) {
1926 pause_all_vcpus();
1927 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1928 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1929 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1930 resume_all_vcpus();
1931 qapi_event_send_wakeup(&error_abort);
1932 }
1933 if (qemu_powerdown_requested()) {
1934 qemu_system_powerdown();
1935 }
1936 if (qemu_vmstop_requested(&r)) {
1937 vm_stop(r);
1938 }
1939 return false;
1940 }
1941
1942 static void main_loop(void)
1943 {
1944 #ifdef CONFIG_PROFILER
1945 int64_t ti;
1946 #endif
1947 do {
1948 #ifdef CONFIG_PROFILER
1949 ti = profile_getclock();
1950 #endif
1951 main_loop_wait(false);
1952 #ifdef CONFIG_PROFILER
1953 dev_time += profile_getclock() - ti;
1954 #endif
1955 } while (!main_loop_should_exit());
1956 }
1957
1958 static void version(void)
1959 {
1960 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1961 QEMU_COPYRIGHT "\n");
1962 }
1963
1964 static void help(int exitcode)
1965 {
1966 version();
1967 printf("usage: %s [options] [disk_image]\n\n"
1968 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1969 error_get_progname());
1970
1971 #define QEMU_OPTIONS_GENERATE_HELP
1972 #include "qemu-options-wrapper.h"
1973
1974 printf("\nDuring emulation, the following keys are useful:\n"
1975 "ctrl-alt-f toggle full screen\n"
1976 "ctrl-alt-n switch to virtual console 'n'\n"
1977 "ctrl-alt toggle mouse and keyboard grab\n"
1978 "\n"
1979 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1980 "\n"
1981 QEMU_HELP_BOTTOM "\n");
1982
1983 exit(exitcode);
1984 }
1985
1986 #define HAS_ARG 0x0001
1987
1988 typedef struct QEMUOption {
1989 const char *name;
1990 int flags;
1991 int index;
1992 uint32_t arch_mask;
1993 } QEMUOption;
1994
1995 static const QEMUOption qemu_options[] = {
1996 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1997 #define QEMU_OPTIONS_GENERATE_OPTIONS
1998 #include "qemu-options-wrapper.h"
1999 { NULL },
2000 };
2001
2002 typedef struct VGAInterfaceInfo {
2003 const char *opt_name; /* option name */
2004 const char *name; /* human-readable name */
2005 /* Class names indicating that support is available.
2006 * If no class is specified, the interface is always available */
2007 const char *class_names[2];
2008 } VGAInterfaceInfo;
2009
2010 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2011 [VGA_NONE] = {
2012 .opt_name = "none",
2013 },
2014 [VGA_STD] = {
2015 .opt_name = "std",
2016 .name = "standard VGA",
2017 .class_names = { "VGA", "isa-vga" },
2018 },
2019 [VGA_CIRRUS] = {
2020 .opt_name = "cirrus",
2021 .name = "Cirrus VGA",
2022 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2023 },
2024 [VGA_VMWARE] = {
2025 .opt_name = "vmware",
2026 .name = "VMWare SVGA",
2027 .class_names = { "vmware-svga" },
2028 },
2029 [VGA_VIRTIO] = {
2030 .opt_name = "virtio",
2031 .name = "Virtio VGA",
2032 .class_names = { "virtio-vga" },
2033 },
2034 [VGA_QXL] = {
2035 .opt_name = "qxl",
2036 .name = "QXL VGA",
2037 .class_names = { "qxl-vga" },
2038 },
2039 [VGA_TCX] = {
2040 .opt_name = "tcx",
2041 .name = "TCX framebuffer",
2042 .class_names = { "SUNW,tcx" },
2043 },
2044 [VGA_CG3] = {
2045 .opt_name = "cg3",
2046 .name = "CG3 framebuffer",
2047 .class_names = { "cgthree" },
2048 },
2049 [VGA_XENFB] = {
2050 .opt_name = "xenfb",
2051 },
2052 };
2053
2054 static bool vga_interface_available(VGAInterfaceType t)
2055 {
2056 VGAInterfaceInfo *ti = &vga_interfaces[t];
2057
2058 assert(t < VGA_TYPE_MAX);
2059 return !ti->class_names[0] ||
2060 object_class_by_name(ti->class_names[0]) ||
2061 object_class_by_name(ti->class_names[1]);
2062 }
2063
2064 static void select_vgahw(const char *p)
2065 {
2066 const char *opts;
2067 int t;
2068
2069 assert(vga_interface_type == VGA_NONE);
2070 for (t = 0; t < VGA_TYPE_MAX; t++) {
2071 VGAInterfaceInfo *ti = &vga_interfaces[t];
2072 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2073 if (!vga_interface_available(t)) {
2074 error_report("%s not available", ti->name);
2075 exit(1);
2076 }
2077 vga_interface_type = t;
2078 break;
2079 }
2080 }
2081 if (t == VGA_TYPE_MAX) {
2082 invalid_vga:
2083 error_report("unknown vga type: %s", p);
2084 exit(1);
2085 }
2086 while (*opts) {
2087 const char *nextopt;
2088
2089 if (strstart(opts, ",retrace=", &nextopt)) {
2090 opts = nextopt;
2091 if (strstart(opts, "dumb", &nextopt))
2092 vga_retrace_method = VGA_RETRACE_DUMB;
2093 else if (strstart(opts, "precise", &nextopt))
2094 vga_retrace_method = VGA_RETRACE_PRECISE;
2095 else goto invalid_vga;
2096 } else goto invalid_vga;
2097 opts = nextopt;
2098 }
2099 }
2100
2101 typedef enum DisplayType {
2102 DT_DEFAULT,
2103 DT_CURSES,
2104 DT_SDL,
2105 DT_COCOA,
2106 DT_GTK,
2107 DT_EGL,
2108 DT_NONE,
2109 } DisplayType;
2110
2111 static DisplayType select_display(const char *p)
2112 {
2113 const char *opts;
2114 DisplayType display = DT_DEFAULT;
2115
2116 if (strstart(p, "sdl", &opts)) {
2117 #ifdef CONFIG_SDL
2118 display = DT_SDL;
2119 while (*opts) {
2120 const char *nextopt;
2121
2122 if (strstart(opts, ",frame=", &nextopt)) {
2123 opts = nextopt;
2124 if (strstart(opts, "on", &nextopt)) {
2125 no_frame = 0;
2126 } else if (strstart(opts, "off", &nextopt)) {
2127 no_frame = 1;
2128 } else {
2129 goto invalid_sdl_args;
2130 }
2131 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2132 opts = nextopt;
2133 if (strstart(opts, "on", &nextopt)) {
2134 alt_grab = 1;
2135 } else if (strstart(opts, "off", &nextopt)) {
2136 alt_grab = 0;
2137 } else {
2138 goto invalid_sdl_args;
2139 }
2140 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2141 opts = nextopt;
2142 if (strstart(opts, "on", &nextopt)) {
2143 ctrl_grab = 1;
2144 } else if (strstart(opts, "off", &nextopt)) {
2145 ctrl_grab = 0;
2146 } else {
2147 goto invalid_sdl_args;
2148 }
2149 } else if (strstart(opts, ",window_close=", &nextopt)) {
2150 opts = nextopt;
2151 if (strstart(opts, "on", &nextopt)) {
2152 no_quit = 0;
2153 } else if (strstart(opts, "off", &nextopt)) {
2154 no_quit = 1;
2155 } else {
2156 goto invalid_sdl_args;
2157 }
2158 } else if (strstart(opts, ",gl=", &nextopt)) {
2159 opts = nextopt;
2160 if (strstart(opts, "on", &nextopt)) {
2161 request_opengl = 1;
2162 } else if (strstart(opts, "off", &nextopt)) {
2163 request_opengl = 0;
2164 } else {
2165 goto invalid_sdl_args;
2166 }
2167 } else {
2168 invalid_sdl_args:
2169 error_report("invalid SDL option string");
2170 exit(1);
2171 }
2172 opts = nextopt;
2173 }
2174 #else
2175 error_report("SDL support is disabled");
2176 exit(1);
2177 #endif
2178 } else if (strstart(p, "vnc", &opts)) {
2179 if (*opts == '=') {
2180 vnc_parse(opts + 1, &error_fatal);
2181 } else {
2182 error_report("VNC requires a display argument vnc=<display>");
2183 exit(1);
2184 }
2185 } else if (strstart(p, "egl-headless", &opts)) {
2186 #ifdef CONFIG_OPENGL_DMABUF
2187 request_opengl = 1;
2188 display_opengl = 1;
2189 display = DT_EGL;
2190 #else
2191 fprintf(stderr, "egl support is disabled\n");
2192 exit(1);
2193 #endif
2194 } else if (strstart(p, "curses", &opts)) {
2195 #ifdef CONFIG_CURSES
2196 display = DT_CURSES;
2197 #else
2198 error_report("curses support is disabled");
2199 exit(1);
2200 #endif
2201 } else if (strstart(p, "gtk", &opts)) {
2202 #ifdef CONFIG_GTK
2203 display = DT_GTK;
2204 while (*opts) {
2205 const char *nextopt;
2206
2207 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2208 opts = nextopt;
2209 if (strstart(opts, "on", &nextopt)) {
2210 grab_on_hover = true;
2211 } else if (strstart(opts, "off", &nextopt)) {
2212 grab_on_hover = false;
2213 } else {
2214 goto invalid_gtk_args;
2215 }
2216 } else if (strstart(opts, ",gl=", &nextopt)) {
2217 opts = nextopt;
2218 if (strstart(opts, "on", &nextopt)) {
2219 request_opengl = 1;
2220 } else if (strstart(opts, "off", &nextopt)) {
2221 request_opengl = 0;
2222 } else {
2223 goto invalid_gtk_args;
2224 }
2225 } else {
2226 invalid_gtk_args:
2227 error_report("invalid GTK option string");
2228 exit(1);
2229 }
2230 opts = nextopt;
2231 }
2232 #else
2233 error_report("GTK support is disabled");
2234 exit(1);
2235 #endif
2236 } else if (strstart(p, "none", &opts)) {
2237 display = DT_NONE;
2238 } else {
2239 error_report("unknown display type");
2240 exit(1);
2241 }
2242
2243 return display;
2244 }
2245
2246 static int balloon_parse(const char *arg)
2247 {
2248 QemuOpts *opts;
2249
2250 if (strcmp(arg, "none") == 0) {
2251 return 0;
2252 }
2253
2254 if (!strncmp(arg, "virtio", 6)) {
2255 if (arg[6] == ',') {
2256 /* have params -> parse them */
2257 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2258 false);
2259 if (!opts)
2260 return -1;
2261 } else {
2262 /* create empty opts */
2263 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2264 &error_abort);
2265 }
2266 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2267 return 0;
2268 }
2269
2270 return -1;
2271 }
2272
2273 char *qemu_find_file(int type, const char *name)
2274 {
2275 int i;
2276 const char *subdir;
2277 char *buf;
2278
2279 /* Try the name as a straight path first */
2280 if (access(name, R_OK) == 0) {
2281 trace_load_file(name, name);
2282 return g_strdup(name);
2283 }
2284
2285 switch (type) {
2286 case QEMU_FILE_TYPE_BIOS:
2287 subdir = "";
2288 break;
2289 case QEMU_FILE_TYPE_KEYMAP:
2290 subdir = "keymaps/";
2291 break;
2292 default:
2293 abort();
2294 }
2295
2296 for (i = 0; i < data_dir_idx; i++) {
2297 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2298 if (access(buf, R_OK) == 0) {
2299 trace_load_file(name, buf);
2300 return buf;
2301 }
2302 g_free(buf);
2303 }
2304 return NULL;
2305 }
2306
2307 static void qemu_add_data_dir(const char *path)
2308 {
2309 int i;
2310
2311 if (path == NULL) {
2312 return;
2313 }
2314 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2315 return;
2316 }
2317 for (i = 0; i < data_dir_idx; i++) {
2318 if (strcmp(data_dir[i], path) == 0) {
2319 return; /* duplicate */
2320 }
2321 }
2322 data_dir[data_dir_idx++] = path;
2323 }
2324
2325 static inline bool nonempty_str(const char *str)
2326 {
2327 return str && *str;
2328 }
2329
2330 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2331 {
2332 gchar *buf;
2333 size_t size;
2334 const char *name, *file, *str;
2335 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2336
2337 if (fw_cfg == NULL) {
2338 error_report("fw_cfg device not available");
2339 return -1;
2340 }
2341 name = qemu_opt_get(opts, "name");
2342 file = qemu_opt_get(opts, "file");
2343 str = qemu_opt_get(opts, "string");
2344
2345 /* we need name and either a file or the content string */
2346 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2347 error_report("invalid argument(s)");
2348 return -1;
2349 }
2350 if (nonempty_str(file) && nonempty_str(str)) {
2351 error_report("file and string are mutually exclusive");
2352 return -1;
2353 }
2354 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2355 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2356 return -1;
2357 }
2358 if (strncmp(name, "opt/", 4) != 0) {
2359 warn_report("externally provided fw_cfg item names "
2360 "should be prefixed with \"opt/\"");
2361 }
2362 if (nonempty_str(str)) {
2363 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2364 buf = g_memdup(str, size);
2365 } else {
2366 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2367 error_report("can't load %s", file);
2368 return -1;
2369 }
2370 }
2371 /* For legacy, keep user files in a specific global order. */
2372 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2373 fw_cfg_add_file(fw_cfg, name, buf, size);
2374 fw_cfg_reset_order_override(fw_cfg);
2375 return 0;
2376 }
2377
2378 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2379 {
2380 return qdev_device_help(opts);
2381 }
2382
2383 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2384 {
2385 Error *err = NULL;
2386 DeviceState *dev;
2387
2388 dev = qdev_device_add(opts, &err);
2389 if (!dev) {
2390 error_report_err(err);
2391 return -1;
2392 }
2393 object_unref(OBJECT(dev));
2394 return 0;
2395 }
2396
2397 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2398 {
2399 Error *local_err = NULL;
2400
2401 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2402 if (local_err) {
2403 error_report_err(local_err);
2404 return -1;
2405 }
2406 exit(0);
2407 }
2408 return 0;
2409 }
2410
2411 #ifdef CONFIG_VIRTFS
2412 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2413 {
2414 return qemu_fsdev_add(opts);
2415 }
2416 #endif
2417
2418 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2419 {
2420 Chardev *chr;
2421 const char *chardev;
2422 const char *mode;
2423 int flags;
2424
2425 mode = qemu_opt_get(opts, "mode");
2426 if (mode == NULL) {
2427 mode = "readline";
2428 }
2429 if (strcmp(mode, "readline") == 0) {
2430 flags = MONITOR_USE_READLINE;
2431 } else if (strcmp(mode, "control") == 0) {
2432 flags = MONITOR_USE_CONTROL;
2433 } else {
2434 error_report("unknown monitor mode \"%s\"", mode);
2435 exit(1);
2436 }
2437
2438 if (qemu_opt_get_bool(opts, "pretty", 0))
2439 flags |= MONITOR_USE_PRETTY;
2440
2441 if (qemu_opt_get_bool(opts, "default", 0)) {
2442 error_report("option 'default' does nothing and is deprecated");
2443 }
2444
2445 chardev = qemu_opt_get(opts, "chardev");
2446 chr = qemu_chr_find(chardev);
2447 if (chr == NULL) {
2448 error_report("chardev \"%s\" not found", chardev);
2449 exit(1);
2450 }
2451
2452 monitor_init(chr, flags);
2453 return 0;
2454 }
2455
2456 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2457 {
2458 static int monitor_device_index = 0;
2459 QemuOpts *opts;
2460 const char *p;
2461 char label[32];
2462
2463 if (strstart(optarg, "chardev:", &p)) {
2464 snprintf(label, sizeof(label), "%s", p);
2465 } else {
2466 snprintf(label, sizeof(label), "compat_monitor%d",
2467 monitor_device_index);
2468 opts = qemu_chr_parse_compat(label, optarg);
2469 if (!opts) {
2470 error_report("parse error: %s", optarg);
2471 exit(1);
2472 }
2473 }
2474
2475 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2476 qemu_opt_set(opts, "mode", mode, &error_abort);
2477 qemu_opt_set(opts, "chardev", label, &error_abort);
2478 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2479 monitor_device_index++;
2480 }
2481
2482 struct device_config {
2483 enum {
2484 DEV_USB, /* -usbdevice */
2485 DEV_BT, /* -bt */
2486 DEV_SERIAL, /* -serial */
2487 DEV_PARALLEL, /* -parallel */
2488 DEV_VIRTCON, /* -virtioconsole */
2489 DEV_DEBUGCON, /* -debugcon */
2490 DEV_GDB, /* -gdb, -s */
2491 DEV_SCLP, /* s390 sclp */
2492 } type;
2493 const char *cmdline;
2494 Location loc;
2495 QTAILQ_ENTRY(device_config) next;
2496 };
2497
2498 static QTAILQ_HEAD(, device_config) device_configs =
2499 QTAILQ_HEAD_INITIALIZER(device_configs);
2500
2501 static void add_device_config(int type, const char *cmdline)
2502 {
2503 struct device_config *conf;
2504
2505 conf = g_malloc0(sizeof(*conf));
2506 conf->type = type;
2507 conf->cmdline = cmdline;
2508 loc_save(&conf->loc);
2509 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2510 }
2511
2512 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2513 {
2514 struct device_config *conf;
2515 int rc;
2516
2517 QTAILQ_FOREACH(conf, &device_configs, next) {
2518 if (conf->type != type)
2519 continue;
2520 loc_push_restore(&conf->loc);
2521 rc = func(conf->cmdline);
2522 loc_pop(&conf->loc);
2523 if (rc) {
2524 return rc;
2525 }
2526 }
2527 return 0;
2528 }
2529
2530 static int serial_parse(const char *devname)
2531 {
2532 static int index = 0;
2533 char label[32];
2534
2535 if (strcmp(devname, "none") == 0)
2536 return 0;
2537 if (index == MAX_SERIAL_PORTS) {
2538 error_report("too many serial ports");
2539 exit(1);
2540 }
2541 snprintf(label, sizeof(label), "serial%d", index);
2542 serial_hds[index] = qemu_chr_new(label, devname);
2543 if (!serial_hds[index]) {
2544 error_report("could not connect serial device"
2545 " to character backend '%s'", devname);
2546 return -1;
2547 }
2548 index++;
2549 return 0;
2550 }
2551
2552 static int parallel_parse(const char *devname)
2553 {
2554 static int index = 0;
2555 char label[32];
2556
2557 if (strcmp(devname, "none") == 0)
2558 return 0;
2559 if (index == MAX_PARALLEL_PORTS) {
2560 error_report("too many parallel ports");
2561 exit(1);
2562 }
2563 snprintf(label, sizeof(label), "parallel%d", index);
2564 parallel_hds[index] = qemu_chr_new(label, devname);
2565 if (!parallel_hds[index]) {
2566 error_report("could not connect parallel device"
2567 " to character backend '%s'", devname);
2568 return -1;
2569 }
2570 index++;
2571 return 0;
2572 }
2573
2574 static int virtcon_parse(const char *devname)
2575 {
2576 QemuOptsList *device = qemu_find_opts("device");
2577 static int index = 0;
2578 char label[32];
2579 QemuOpts *bus_opts, *dev_opts;
2580
2581 if (strcmp(devname, "none") == 0)
2582 return 0;
2583 if (index == MAX_VIRTIO_CONSOLES) {
2584 error_report("too many virtio consoles");
2585 exit(1);
2586 }
2587
2588 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2589 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2590
2591 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2592 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2593
2594 snprintf(label, sizeof(label), "virtcon%d", index);
2595 virtcon_hds[index] = qemu_chr_new(label, devname);
2596 if (!virtcon_hds[index]) {
2597 error_report("could not connect virtio console"
2598 " to character backend '%s'", devname);
2599 return -1;
2600 }
2601 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2602
2603 index++;
2604 return 0;
2605 }
2606
2607 static int sclp_parse(const char *devname)
2608 {
2609 QemuOptsList *device = qemu_find_opts("device");
2610 static int index = 0;
2611 char label[32];
2612 QemuOpts *dev_opts;
2613
2614 if (strcmp(devname, "none") == 0) {
2615 return 0;
2616 }
2617 if (index == MAX_SCLP_CONSOLES) {
2618 error_report("too many sclp consoles");
2619 exit(1);
2620 }
2621
2622 assert(arch_type == QEMU_ARCH_S390X);
2623
2624 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2625 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2626
2627 snprintf(label, sizeof(label), "sclpcon%d", index);
2628 sclp_hds[index] = qemu_chr_new(label, devname);
2629 if (!sclp_hds[index]) {
2630 error_report("could not connect sclp console"
2631 " to character backend '%s'", devname);
2632 return -1;
2633 }
2634 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2635
2636 index++;
2637 return 0;
2638 }
2639
2640 static int debugcon_parse(const char *devname)
2641 {
2642 QemuOpts *opts;
2643
2644 if (!qemu_chr_new("debugcon", devname)) {
2645 exit(1);
2646 }
2647 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2648 if (!opts) {
2649 error_report("already have a debugcon device");
2650 exit(1);
2651 }
2652 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2653 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2654 return 0;
2655 }
2656
2657 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2658 {
2659 const MachineClass *mc1 = a, *mc2 = b;
2660 int res;
2661
2662 if (mc1->family == NULL) {
2663 if (mc2->family == NULL) {
2664 /* Compare standalone machine types against each other; they sort
2665 * in increasing order.
2666 */
2667 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2668 object_class_get_name(OBJECT_CLASS(mc2)));
2669 }
2670
2671 /* Standalone machine types sort after families. */
2672 return 1;
2673 }
2674
2675 if (mc2->family == NULL) {
2676 /* Families sort before standalone machine types. */
2677 return -1;
2678 }
2679
2680 /* Families sort between each other alphabetically increasingly. */
2681 res = strcmp(mc1->family, mc2->family);
2682 if (res != 0) {
2683 return res;
2684 }
2685
2686 /* Within the same family, machine types sort in decreasing order. */
2687 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2688 object_class_get_name(OBJECT_CLASS(mc1)));
2689 }
2690
2691 static MachineClass *machine_parse(const char *name)
2692 {
2693 MachineClass *mc = NULL;
2694 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2695
2696 if (name) {
2697 mc = find_machine(name);
2698 }
2699 if (mc) {
2700 g_slist_free(machines);
2701 return mc;
2702 }
2703 if (name && !is_help_option(name)) {
2704 error_report("unsupported machine type");
2705 error_printf("Use -machine help to list supported machines\n");
2706 } else {
2707 printf("Supported machines are:\n");
2708 machines = g_slist_sort(machines, machine_class_cmp);
2709 for (el = machines; el; el = el->next) {
2710 MachineClass *mc = el->data;
2711 if (mc->alias) {
2712 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2713 }
2714 printf("%-20s %s%s\n", mc->name, mc->desc,
2715 mc->is_default ? " (default)" : "");
2716 }
2717 }
2718
2719 g_slist_free(machines);
2720 exit(!name || !is_help_option(name));
2721 }
2722
2723 void qemu_add_exit_notifier(Notifier *notify)
2724 {
2725 notifier_list_add(&exit_notifiers, notify);
2726 }
2727
2728 void qemu_remove_exit_notifier(Notifier *notify)
2729 {
2730 notifier_remove(notify);
2731 }
2732
2733 static void qemu_run_exit_notifiers(void)
2734 {
2735 notifier_list_notify(&exit_notifiers, NULL);
2736 }
2737
2738 static bool machine_init_done;
2739
2740 void qemu_add_machine_init_done_notifier(Notifier *notify)
2741 {
2742 notifier_list_add(&machine_init_done_notifiers, notify);
2743 if (machine_init_done) {
2744 notify->notify(notify, NULL);
2745 }
2746 }
2747
2748 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2749 {
2750 notifier_remove(notify);
2751 }
2752
2753 static void qemu_run_machine_init_done_notifiers(void)
2754 {
2755 notifier_list_notify(&machine_init_done_notifiers, NULL);
2756 machine_init_done = true;
2757 }
2758
2759 static const QEMUOption *lookup_opt(int argc, char **argv,
2760 const char **poptarg, int *poptind)
2761 {
2762 const QEMUOption *popt;
2763 int optind = *poptind;
2764 char *r = argv[optind];
2765 const char *optarg;
2766
2767 loc_set_cmdline(argv, optind, 1);
2768 optind++;
2769 /* Treat --foo the same as -foo. */
2770 if (r[1] == '-')
2771 r++;
2772 popt = qemu_options;
2773 for(;;) {
2774 if (!popt->name) {
2775 error_report("invalid option");
2776 exit(1);
2777 }
2778 if (!strcmp(popt->name, r + 1))
2779 break;
2780 popt++;
2781 }
2782 if (popt->flags & HAS_ARG) {
2783 if (optind >= argc) {
2784 error_report("requires an argument");
2785 exit(1);
2786 }
2787 optarg = argv[optind++];
2788 loc_set_cmdline(argv, optind - 2, 2);
2789 } else {
2790 optarg = NULL;
2791 }
2792
2793 *poptarg = optarg;
2794 *poptind = optind;
2795
2796 return popt;
2797 }
2798
2799 static MachineClass *select_machine(void)
2800 {
2801 MachineClass *machine_class = find_default_machine();
2802 const char *optarg;
2803 QemuOpts *opts;
2804 Location loc;
2805
2806 loc_push_none(&loc);
2807
2808 opts = qemu_get_machine_opts();
2809 qemu_opts_loc_restore(opts);
2810
2811 optarg = qemu_opt_get(opts, "type");
2812 if (optarg) {
2813 machine_class = machine_parse(optarg);
2814 }
2815
2816 if (!machine_class) {
2817 error_report("No machine specified, and there is no default");
2818 error_printf("Use -machine help to list supported machines\n");
2819 exit(1);
2820 }
2821
2822 loc_pop(&loc);
2823 return machine_class;
2824 }
2825
2826 static int machine_set_property(void *opaque,
2827 const char *name, const char *value,
2828 Error **errp)
2829 {
2830 Object *obj = OBJECT(opaque);
2831 Error *local_err = NULL;
2832 char *p, *qom_name;
2833
2834 if (strcmp(name, "type") == 0) {
2835 return 0;
2836 }
2837
2838 qom_name = g_strdup(name);
2839 for (p = qom_name; *p; p++) {
2840 if (*p == '_') {
2841 *p = '-';
2842 }
2843 }
2844
2845 object_property_parse(obj, value, qom_name, &local_err);
2846 g_free(qom_name);
2847
2848 if (local_err) {
2849 error_report_err(local_err);
2850 return -1;
2851 }
2852
2853 return 0;
2854 }
2855
2856
2857 /*
2858 * Initial object creation happens before all other
2859 * QEMU data types are created. The majority of objects
2860 * can be created at this point. The rng-egd object
2861 * cannot be created here, as it depends on the chardev
2862 * already existing.
2863 */
2864 static bool object_create_initial(const char *type)
2865 {
2866 if (g_str_equal(type, "rng-egd") ||
2867 g_str_has_prefix(type, "pr-manager-")) {
2868 return false;
2869 }
2870
2871 /*
2872 * return false for concrete netfilters since
2873 * they depend on netdevs already existing
2874 */
2875 if (g_str_equal(type, "filter-buffer") ||
2876 g_str_equal(type, "filter-dump") ||
2877 g_str_equal(type, "filter-mirror") ||
2878 g_str_equal(type, "filter-redirector") ||
2879 g_str_equal(type, "colo-compare") ||
2880 g_str_equal(type, "filter-rewriter") ||
2881 g_str_equal(type, "filter-replay")) {
2882 return false;
2883 }
2884
2885 /* Memory allocation by backends needs to be done
2886 * after configure_accelerator() (due to the tcg_enabled()
2887 * checks at memory_region_init_*()).
2888 *
2889 * Also, allocation of large amounts of memory may delay
2890 * chardev initialization for too long, and trigger timeouts
2891 * on software that waits for a monitor socket to be created
2892 * (e.g. libvirt).
2893 */
2894 if (g_str_has_prefix(type, "memory-backend-")) {
2895 return false;
2896 }
2897
2898 return true;
2899 }
2900
2901
2902 /*
2903 * The remainder of object creation happens after the
2904 * creation of chardev, fsdev, net clients and device data types.
2905 */
2906 static bool object_create_delayed(const char *type)
2907 {
2908 return !object_create_initial(type);
2909 }
2910
2911
2912 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2913 MachineClass *mc)
2914 {
2915 uint64_t sz;
2916 const char *mem_str;
2917 const char *maxmem_str, *slots_str;
2918 const ram_addr_t default_ram_size = mc->default_ram_size;
2919 QemuOpts *opts = qemu_find_opts_singleton("memory");
2920 Location loc;
2921
2922 loc_push_none(&loc);
2923 qemu_opts_loc_restore(opts);
2924
2925 sz = 0;
2926 mem_str = qemu_opt_get(opts, "size");
2927 if (mem_str) {
2928 if (!*mem_str) {
2929 error_report("missing 'size' option value");
2930 exit(EXIT_FAILURE);
2931 }
2932
2933 sz = qemu_opt_get_size(opts, "size", ram_size);
2934
2935 /* Fix up legacy suffix-less format */
2936 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2937 uint64_t overflow_check = sz;
2938
2939 sz <<= 20;
2940 if ((sz >> 20) != overflow_check) {
2941 error_report("too large 'size' option value");
2942 exit(EXIT_FAILURE);
2943 }
2944 }
2945 }
2946
2947 /* backward compatibility behaviour for case "-m 0" */
2948 if (sz == 0) {
2949 sz = default_ram_size;
2950 }
2951
2952 sz = QEMU_ALIGN_UP(sz, 8192);
2953 ram_size = sz;
2954 if (ram_size != sz) {
2955 error_report("ram size too large");
2956 exit(EXIT_FAILURE);
2957 }
2958
2959 /* store value for the future use */
2960 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2961 *maxram_size = ram_size;
2962
2963 maxmem_str = qemu_opt_get(opts, "maxmem");
2964 slots_str = qemu_opt_get(opts, "slots");
2965 if (maxmem_str && slots_str) {
2966 uint64_t slots;
2967
2968 sz = qemu_opt_get_size(opts, "maxmem", 0);
2969 slots = qemu_opt_get_number(opts, "slots", 0);
2970 if (sz < ram_size) {
2971 error_report("invalid value of -m option maxmem: "
2972 "maximum memory size (0x%" PRIx64 ") must be at least "
2973 "the initial memory size (0x" RAM_ADDR_FMT ")",
2974 sz, ram_size);
2975 exit(EXIT_FAILURE);
2976 } else if (sz > ram_size) {
2977 if (!slots) {
2978 error_report("invalid value of -m option: maxmem was "
2979 "specified, but no hotplug slots were specified");
2980 exit(EXIT_FAILURE);
2981 }
2982 } else if (slots) {
2983 error_report("invalid value of -m option maxmem: "
2984 "memory slots were specified but maximum memory size "
2985 "(0x%" PRIx64 ") is equal to the initial memory size "
2986 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2987 exit(EXIT_FAILURE);
2988 }
2989
2990 *maxram_size = sz;
2991 *ram_slots = slots;
2992 } else if ((!maxmem_str && slots_str) ||
2993 (maxmem_str && !slots_str)) {
2994 error_report("invalid -m option value: missing "
2995 "'%s' option", slots_str ? "maxmem" : "slots");
2996 exit(EXIT_FAILURE);
2997 }
2998
2999 loc_pop(&loc);
3000 }
3001
3002 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
3003 {
3004 GlobalProperty *g;
3005
3006 g = g_malloc0(sizeof(*g));
3007 g->driver = qemu_opt_get(opts, "driver");
3008 g->property = qemu_opt_get(opts, "property");
3009 g->value = qemu_opt_get(opts, "value");
3010 g->user_provided = true;
3011 g->errp = &error_fatal;
3012 qdev_prop_register_global(g);
3013 return 0;
3014 }
3015
3016 static int qemu_read_default_config_file(void)
3017 {
3018 int ret;
3019
3020 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3021 if (ret < 0 && ret != -ENOENT) {
3022 return ret;
3023 }
3024
3025 return 0;
3026 }
3027
3028 static void user_register_global_props(void)
3029 {
3030 qemu_opts_foreach(qemu_find_opts("global"),
3031 global_init_func, NULL, NULL);
3032 }
3033
3034 /*
3035 * Note: we should see that these properties are actually having a
3036 * priority: accel < machine < user. This means e.g. when user
3037 * specifies something in "-global", it'll always be used with highest
3038 * priority than either machine/accelerator compat properties.
3039 */
3040 static void register_global_properties(MachineState *ms)
3041 {
3042 accel_register_compat_props(ms->accelerator);
3043 machine_register_compat_props(ms);
3044 user_register_global_props();
3045 }
3046
3047 int main(int argc, char **argv, char **envp)
3048 {
3049 int i;
3050 int snapshot, linux_boot;
3051 const char *initrd_filename;
3052 const char *kernel_filename, *kernel_cmdline;
3053 const char *boot_order = NULL;
3054 const char *boot_once = NULL;
3055 DisplayState *ds;
3056 int cyls, heads, secs, translation;
3057 QemuOpts *opts, *machine_opts;
3058 QemuOpts *hda_opts = NULL, *icount_opts = NULL, *accel_opts = NULL;
3059 QemuOptsList *olist;
3060 int optind;
3061 const char *optarg;
3062 const char *loadvm = NULL;
3063 MachineClass *machine_class;
3064 const char *cpu_model;
3065 const char *vga_model = NULL;
3066 const char *qtest_chrdev = NULL;
3067 const char *qtest_log = NULL;
3068 const char *pid_file = NULL;
3069 const char *incoming = NULL;
3070 bool userconfig = true;
3071 bool nographic = false;
3072 DisplayType display_type = DT_DEFAULT;
3073 int display_remote = 0;
3074 const char *log_mask = NULL;
3075 const char *log_file = NULL;
3076 char *trace_file = NULL;
3077 ram_addr_t maxram_size;
3078 uint64_t ram_slots = 0;
3079 FILE *vmstate_dump_file = NULL;
3080 Error *main_loop_err = NULL;
3081 Error *err = NULL;
3082 bool list_data_dirs = false;
3083 char **dirs;
3084 typedef struct BlockdevOptions_queue {
3085 BlockdevOptions *bdo;
3086 Location loc;
3087 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3088 } BlockdevOptions_queue;
3089 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3090 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3091
3092 module_call_init(MODULE_INIT_TRACE);
3093
3094 qemu_init_cpu_list();
3095 qemu_init_cpu_loop();
3096 qemu_mutex_lock_iothread();
3097
3098 atexit(qemu_run_exit_notifiers);
3099 error_set_progname(argv[0]);
3100 qemu_init_exec_dir(argv[0]);
3101
3102 module_call_init(MODULE_INIT_QOM);
3103 monitor_init_qmp_commands();
3104
3105 qemu_add_opts(&qemu_drive_opts);
3106 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3107 qemu_add_drive_opts(&qemu_common_drive_opts);
3108 qemu_add_drive_opts(&qemu_drive_opts);
3109 qemu_add_drive_opts(&bdrv_runtime_opts);
3110 qemu_add_opts(&qemu_chardev_opts);
3111 qemu_add_opts(&qemu_device_opts);
3112 qemu_add_opts(&qemu_netdev_opts);
3113 qemu_add_opts(&qemu_net_opts);
3114 qemu_add_opts(&qemu_rtc_opts);
3115 qemu_add_opts(&qemu_global_opts);
3116 qemu_add_opts(&qemu_mon_opts);
3117 qemu_add_opts(&qemu_trace_opts);
3118 qemu_add_opts(&qemu_option_rom_opts);
3119 qemu_add_opts(&qemu_machine_opts);
3120 qemu_add_opts(&qemu_accel_opts);
3121 qemu_add_opts(&qemu_mem_opts);
3122 qemu_add_opts(&qemu_smp_opts);
3123 qemu_add_opts(&qemu_boot_opts);
3124 qemu_add_opts(&qemu_sandbox_opts);
3125 qemu_add_opts(&qemu_add_fd_opts);
3126 qemu_add_opts(&qemu_object_opts);
3127 qemu_add_opts(&qemu_tpmdev_opts);
3128 qemu_add_opts(&qemu_realtime_opts);
3129 qemu_add_opts(&qemu_msg_opts);
3130 qemu_add_opts(&qemu_name_opts);
3131 qemu_add_opts(&qemu_numa_opts);
3132 qemu_add_opts(&qemu_icount_opts);
3133 qemu_add_opts(&qemu_semihosting_config_opts);
3134 qemu_add_opts(&qemu_fw_cfg_opts);
3135 module_call_init(MODULE_INIT_OPTS);
3136
3137 runstate_init();
3138
3139 if (qcrypto_init(&err) < 0) {
3140 error_reportf_err(err, "cannot initialize crypto: ");
3141 exit(1);
3142 }
3143 rtc_clock = QEMU_CLOCK_HOST;
3144
3145 QLIST_INIT (&vm_change_state_head);
3146 os_setup_early_signal_handling();
3147
3148 cpu_model = NULL;
3149 snapshot = 0;
3150 cyls = heads = secs = 0;
3151 translation = BIOS_ATA_TRANSLATION_AUTO;
3152
3153 nb_nics = 0;
3154
3155 bdrv_init_with_whitelist();
3156
3157 autostart = 1;
3158
3159 /* first pass of option parsing */
3160 optind = 1;
3161 while (optind < argc) {
3162 if (argv[optind][0] != '-') {
3163 /* disk image */
3164 optind++;
3165 } else {
3166 const QEMUOption *popt;
3167
3168 popt = lookup_opt(argc, argv, &optarg, &optind);
3169 switch (popt->index) {
3170 case QEMU_OPTION_nodefconfig:
3171 case QEMU_OPTION_nouserconfig:
3172 userconfig = false;
3173 break;
3174 }
3175 }
3176 }
3177
3178 if (userconfig) {
3179 if (qemu_read_default_config_file() < 0) {
3180 exit(1);
3181 }
3182 }
3183
3184 /* second pass of option parsing */
3185 optind = 1;
3186 for(;;) {
3187 if (optind >= argc)
3188 break;
3189 if (argv[optind][0] != '-') {
3190 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3191 } else {
3192 const QEMUOption *popt;
3193
3194 popt = lookup_opt(argc, argv, &optarg, &optind);
3195 if (!(popt->arch_mask & arch_type)) {
3196 error_report("Option not supported for this target");
3197 exit(1);
3198 }
3199 switch(popt->index) {
3200 case QEMU_OPTION_no_kvm_irqchip: {
3201 olist = qemu_find_opts("machine");
3202 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3203 break;
3204 }
3205 case QEMU_OPTION_cpu:
3206 /* hw initialization will check this */
3207 cpu_model = optarg;
3208 break;
3209 case QEMU_OPTION_hda:
3210 {
3211 char buf[256];
3212 if (cyls == 0)
3213 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3214 else
3215 snprintf(buf, sizeof(buf),
3216 "%s,cyls=%d,heads=%d,secs=%d%s",
3217 HD_OPTS , cyls, heads, secs,
3218 translation == BIOS_ATA_TRANSLATION_LBA ?
3219 ",trans=lba" :
3220 translation == BIOS_ATA_TRANSLATION_NONE ?
3221 ",trans=none" : "");
3222 drive_add(IF_DEFAULT, 0, optarg, buf);
3223 break;
3224 }
3225 case QEMU_OPTION_hdb:
3226 case QEMU_OPTION_hdc:
3227 case QEMU_OPTION_hdd:
3228 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3229 HD_OPTS);
3230 break;
3231 case QEMU_OPTION_blockdev:
3232 {
3233 Visitor *v;
3234 BlockdevOptions_queue *bdo;
3235
3236 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3237 if (!v) {
3238 error_report_err(err);
3239 exit(1);
3240 }
3241
3242 bdo = g_new(BlockdevOptions_queue, 1);
3243 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3244 &error_fatal);
3245 visit_free(v);
3246 loc_save(&bdo->loc);
3247 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3248 break;
3249 }
3250 case QEMU_OPTION_drive:
3251 if (drive_def(optarg) == NULL) {
3252 exit(1);
3253 }
3254 break;
3255 case QEMU_OPTION_set:
3256 if (qemu_set_option(optarg) != 0)
3257 exit(1);
3258 break;
3259 case QEMU_OPTION_global:
3260 if (qemu_global_option(optarg) != 0)
3261 exit(1);
3262 break;
3263 case QEMU_OPTION_mtdblock:
3264 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3265 break;
3266 case QEMU_OPTION_sd:
3267 drive_add(IF_SD, -1, optarg, SD_OPTS);
3268 break;
3269 case QEMU_OPTION_pflash:
3270 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3271 break;
3272 case QEMU_OPTION_snapshot:
3273 snapshot = 1;
3274 break;
3275 case QEMU_OPTION_hdachs:
3276 {
3277 const char *p;
3278 p = optarg;
3279 cyls = strtol(p, (char **)&p, 0);
3280 if (cyls < 1 || cyls > 16383)
3281 goto chs_fail;
3282 if (*p != ',')
3283 goto chs_fail;
3284 p++;
3285 heads = strtol(p, (char **)&p, 0);
3286 if (heads < 1 || heads > 16)
3287 goto chs_fail;
3288 if (*p != ',')
3289 goto chs_fail;
3290 p++;
3291 secs = strtol(p, (char **)&p, 0);
3292 if (secs < 1 || secs > 63)
3293 goto chs_fail;
3294 if (*p == ',') {
3295 p++;
3296 if (!strcmp(p, "large")) {
3297 translation = BIOS_ATA_TRANSLATION_LARGE;
3298 } else if (!strcmp(p, "rechs")) {
3299 translation = BIOS_ATA_TRANSLATION_RECHS;
3300 } else if (!strcmp(p, "none")) {
3301 translation = BIOS_ATA_TRANSLATION_NONE;
3302 } else if (!strcmp(p, "lba")) {
3303 translation = BIOS_ATA_TRANSLATION_LBA;
3304 } else if (!strcmp(p, "auto")) {
3305 translation = BIOS_ATA_TRANSLATION_AUTO;
3306 } else {
3307 goto chs_fail;
3308 }
3309 } else if (*p != '\0') {
3310 chs_fail:
3311 error_report("invalid physical CHS format");
3312 exit(1);
3313 }
3314 if (hda_opts != NULL) {
3315 qemu_opt_set_number(hda_opts, "cyls", cyls,
3316 &error_abort);
3317 qemu_opt_set_number(hda_opts, "heads", heads,
3318 &error_abort);
3319 qemu_opt_set_number(hda_opts, "secs", secs,
3320 &error_abort);
3321 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3322 qemu_opt_set(hda_opts, "trans", "large",
3323 &error_abort);
3324 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3325 qemu_opt_set(hda_opts, "trans", "rechs",
3326 &error_abort);
3327 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3328 qemu_opt_set(hda_opts, "trans", "lba",
3329 &error_abort);
3330 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3331 qemu_opt_set(hda_opts, "trans", "none",
3332 &error_abort);
3333 }
3334 }
3335 }
3336 error_report("'-hdachs' is deprecated, please use '-device"
3337 " ide-hd,cyls=c,heads=h,secs=s,...' instead");
3338 break;
3339 case QEMU_OPTION_numa:
3340 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3341 optarg, true);
3342 if (!opts) {
3343 exit(1);
3344 }
3345 break;
3346 case QEMU_OPTION_display:
3347 display_type = select_display(optarg);
3348 break;
3349 case QEMU_OPTION_nographic:
3350 olist = qemu_find_opts("machine");
3351 qemu_opts_parse_noisily(olist, "graphics=off", false);
3352 nographic = true;
3353 display_type = DT_NONE;
3354 break;
3355 case QEMU_OPTION_curses:
3356 #ifdef CONFIG_CURSES
3357 display_type = DT_CURSES;
3358 #else
3359 error_report("curses support is disabled");
3360 exit(1);
3361 #endif
3362 break;
3363 case QEMU_OPTION_portrait:
3364 graphic_rotate = 90;
3365 break;
3366 case QEMU_OPTION_rotate:
3367 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3368 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3369 graphic_rotate != 180 && graphic_rotate != 270) {
3370 error_report("only 90, 180, 270 deg rotation is available");
3371 exit(1);
3372 }
3373 break;
3374 case QEMU_OPTION_kernel:
3375 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3376 &error_abort);
3377 break;
3378 case QEMU_OPTION_initrd:
3379 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3380 &error_abort);
3381 break;
3382 case QEMU_OPTION_append:
3383 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3384 &error_abort);
3385 break;
3386 case QEMU_OPTION_dtb:
3387 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3388 &error_abort);
3389 break;
3390 case QEMU_OPTION_cdrom:
3391 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3392 break;
3393 case QEMU_OPTION_boot:
3394 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3395 optarg, true);
3396 if (!opts) {
3397 exit(1);
3398 }
3399 break;
3400 case QEMU_OPTION_fda:
3401 case QEMU_OPTION_fdb:
3402 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3403 optarg, FD_OPTS);
3404 break;
3405 case QEMU_OPTION_no_fd_bootchk:
3406 fd_bootchk = 0;
3407 break;
3408 case QEMU_OPTION_netdev:
3409 default_net = 0;
3410 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3411 exit(1);
3412 }
3413 break;
3414 case QEMU_OPTION_net:
3415 default_net = 0;
3416 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3417 exit(1);
3418 }
3419 break;
3420 #ifdef CONFIG_LIBISCSI
3421 case QEMU_OPTION_iscsi:
3422 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3423 optarg, false);
3424 if (!opts) {
3425 exit(1);
3426 }
3427 break;
3428 #endif
3429 #ifdef CONFIG_SLIRP
3430 case QEMU_OPTION_tftp:
3431 error_report("The -tftp option is deprecated. "
3432 "Please use '-netdev user,tftp=...' instead.");
3433 legacy_tftp_prefix = optarg;
3434 break;
3435 case QEMU_OPTION_bootp:
3436 error_report("The -bootp option is deprecated. "
3437 "Please use '-netdev user,bootfile=...' instead.");
3438 legacy_bootp_filename = optarg;
3439 break;
3440 case QEMU_OPTION_redir:
3441 error_report("The -redir option is deprecated. "
3442 "Please use '-netdev user,hostfwd=...' instead.");
3443 if (net_slirp_redir(optarg) < 0)
3444 exit(1);
3445 break;
3446 #endif
3447 case QEMU_OPTION_bt:
3448 add_device_config(DEV_BT, optarg);
3449 break;
3450 case QEMU_OPTION_audio_help:
3451 AUD_help ();
3452 exit (0);
3453 break;
3454 case QEMU_OPTION_soundhw:
3455 select_soundhw (optarg);
3456 break;
3457 case QEMU_OPTION_h:
3458 help(0);
3459 break;
3460 case QEMU_OPTION_version:
3461 version();
3462 exit(0);
3463 break;
3464 case QEMU_OPTION_m:
3465 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3466 optarg, true);
3467 if (!opts) {
3468 exit(EXIT_FAILURE);
3469 }
3470 break;
3471 #ifdef CONFIG_TPM
3472 case QEMU_OPTION_tpmdev:
3473 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3474 exit(1);
3475 }
3476 break;
3477 #endif
3478 case QEMU_OPTION_mempath:
3479 mem_path = optarg;
3480 break;
3481 case QEMU_OPTION_mem_prealloc:
3482 mem_prealloc = 1;
3483 break;
3484 case QEMU_OPTION_d:
3485 log_mask = optarg;
3486 break;
3487 case QEMU_OPTION_D:
3488 log_file = optarg;
3489 break;
3490 case QEMU_OPTION_DFILTER:
3491 qemu_set_dfilter_ranges(optarg, &error_fatal);
3492 break;
3493 case QEMU_OPTION_s:
3494 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3495 break;
3496 case QEMU_OPTION_gdb:
3497 add_device_config(DEV_GDB, optarg);
3498 break;
3499 case QEMU_OPTION_L:
3500 if (is_help_option(optarg)) {
3501 list_data_dirs = true;
3502 } else {
3503 qemu_add_data_dir(optarg);
3504 }
3505 break;
3506 case QEMU_OPTION_bios:
3507 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3508 &error_abort);
3509 break;
3510 case QEMU_OPTION_singlestep:
3511 singlestep = 1;
3512 break;
3513 case QEMU_OPTION_S:
3514 autostart = 0;
3515 break;
3516 case QEMU_OPTION_k:
3517 keyboard_layout = optarg;
3518 break;
3519 case QEMU_OPTION_localtime:
3520 rtc_utc = 0;
3521 break;
3522 case QEMU_OPTION_vga:
3523 vga_model = optarg;
3524 default_vga = 0;
3525 break;
3526 case QEMU_OPTION_g:
3527 {
3528 const char *p;
3529 int w, h, depth;
3530 p = optarg;
3531 w = strtol(p, (char **)&p, 10);
3532 if (w <= 0) {
3533 graphic_error:
3534 error_report("invalid resolution or depth");
3535 exit(1);
3536 }
3537 if (*p != 'x')
3538 goto graphic_error;
3539 p++;
3540 h = strtol(p, (char **)&p, 10);
3541 if (h <= 0)
3542 goto graphic_error;
3543 if (*p == 'x') {
3544 p++;
3545 depth = strtol(p, (char **)&p, 10);
3546 if (depth != 8 && depth != 15 && depth != 16 &&
3547 depth != 24 && depth != 32)
3548 goto graphic_error;
3549 } else if (*p == '\0') {
3550 depth = graphic_depth;
3551 } else {
3552 goto graphic_error;
3553 }
3554
3555 graphic_width = w;
3556 graphic_height = h;
3557 graphic_depth = depth;
3558 }
3559 break;
3560 case QEMU_OPTION_echr:
3561 {
3562 char *r;
3563 term_escape_char = strtol(optarg, &r, 0);
3564 if (r == optarg)
3565 printf("Bad argument to echr\n");
3566 break;
3567 }
3568 case QEMU_OPTION_monitor:
3569 default_monitor = 0;
3570 if (strncmp(optarg, "none", 4)) {
3571 monitor_parse(optarg, "readline", false);
3572 }
3573 break;
3574 case QEMU_OPTION_qmp:
3575 monitor_parse(optarg, "control", false);
3576 default_monitor = 0;
3577 break;
3578 case QEMU_OPTION_qmp_pretty:
3579 monitor_parse(optarg, "control", true);
3580 default_monitor = 0;
3581 break;
3582 case QEMU_OPTION_mon:
3583 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3584 true);
3585 if (!opts) {
3586 exit(1);
3587 }
3588 default_monitor = 0;
3589 break;
3590 case QEMU_OPTION_chardev:
3591 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3592 optarg, true);
3593 if (!opts) {
3594 exit(1);
3595 }
3596 break;
3597 case QEMU_OPTION_fsdev:
3598 olist = qemu_find_opts("fsdev");
3599 if (!olist) {
3600 error_report("fsdev support is disabled");
3601 exit(1);
3602 }
3603 opts = qemu_opts_parse_noisily(olist, optarg, true);
3604 if (!opts) {
3605 exit(1);
3606 }
3607 break;
3608 case QEMU_OPTION_virtfs: {
3609 QemuOpts *fsdev;
3610 QemuOpts *device;
3611 const char *writeout, *sock_fd, *socket, *path, *security_model;
3612
3613 olist = qemu_find_opts("virtfs");
3614 if (!olist) {
3615 error_report("virtfs support is disabled");
3616 exit(1);
3617 }
3618 opts = qemu_opts_parse_noisily(olist, optarg, true);
3619 if (!opts) {
3620 exit(1);
3621 }
3622
3623 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3624 qemu_opt_get(opts, "mount_tag") == NULL) {
3625 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3626 exit(1);
3627 }
3628 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3629 qemu_opts_id(opts) ?:
3630 qemu_opt_get(opts, "mount_tag"),
3631 1, NULL);
3632 if (!fsdev) {
3633 error_report("duplicate or invalid fsdev id: %s",
3634 qemu_opt_get(opts, "mount_tag"));
3635 exit(1);
3636 }
3637
3638 writeout = qemu_opt_get(opts, "writeout");
3639 if (writeout) {
3640 #ifdef CONFIG_SYNC_FILE_RANGE
3641 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3642 #else
3643 error_report("writeout=immediate not supported "
3644 "on this platform");
3645 exit(1);
3646 #endif
3647 }
3648 qemu_opt_set(fsdev, "fsdriver",
3649 qemu_opt_get(opts, "fsdriver"), &error_abort);
3650 path = qemu_opt_get(opts, "path");
3651 if (path) {
3652 qemu_opt_set(fsdev, "path", path, &error_abort);
3653 }
3654 security_model = qemu_opt_get(opts, "security_model");
3655 if (security_model) {
3656 qemu_opt_set(fsdev, "security_model", security_model,
3657 &error_abort);
3658 }
3659 socket = qemu_opt_get(opts, "socket");
3660 if (socket) {
3661 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3662 }
3663 sock_fd = qemu_opt_get(opts, "sock_fd");
3664 if (sock_fd) {
3665 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3666 }
3667
3668 qemu_opt_set_bool(fsdev, "readonly",
3669 qemu_opt_get_bool(opts, "readonly", 0),
3670 &error_abort);
3671 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3672 &error_abort);
3673 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3674 qemu_opt_set(device, "fsdev",
3675 qemu_opts_id(fsdev), &error_abort);
3676 qemu_opt_set(device, "mount_tag",
3677 qemu_opt_get(opts, "mount_tag"), &error_abort);
3678 break;
3679 }
3680 case QEMU_OPTION_virtfs_synth: {
3681 QemuOpts *fsdev;
3682 QemuOpts *device;
3683
3684 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3685 1, NULL);
3686 if (!fsdev) {
3687 error_report("duplicate option: %s", "virtfs_synth");
3688 exit(1);
3689 }
3690 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3691
3692 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3693 &error_abort);
3694 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3695 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3696 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3697 break;
3698 }
3699 case QEMU_OPTION_serial:
3700 add_device_config(DEV_SERIAL, optarg);
3701 default_serial = 0;
3702 if (strncmp(optarg, "mon:", 4) == 0) {
3703 default_monitor = 0;
3704 }
3705 break;
3706 case QEMU_OPTION_watchdog:
3707 if (watchdog) {
3708 error_report("only one watchdog option may be given");
3709 return 1;
3710 }
3711 watchdog = optarg;
3712 break;
3713 case QEMU_OPTION_watchdog_action:
3714 if (select_watchdog_action(optarg) == -1) {
3715 error_report("unknown -watchdog-action parameter");
3716 exit(1);
3717 }
3718 break;
3719 case QEMU_OPTION_virtiocon:
3720 add_device_config(DEV_VIRTCON, optarg);
3721 default_virtcon = 0;
3722 if (strncmp(optarg, "mon:", 4) == 0) {
3723 default_monitor = 0;
3724 }
3725 break;
3726 case QEMU_OPTION_parallel:
3727 add_device_config(DEV_PARALLEL, optarg);
3728 default_parallel = 0;
3729 if (strncmp(optarg, "mon:", 4) == 0) {
3730 default_monitor = 0;
3731 }
3732 break;
3733 case QEMU_OPTION_debugcon:
3734 add_device_config(DEV_DEBUGCON, optarg);
3735 break;
3736 case QEMU_OPTION_loadvm:
3737 loadvm = optarg;
3738 break;
3739 case QEMU_OPTION_full_screen:
3740 full_screen = 1;
3741 break;
3742 case QEMU_OPTION_no_frame:
3743 no_frame = 1;
3744 break;
3745 case QEMU_OPTION_alt_grab:
3746 alt_grab = 1;
3747 break;
3748 case QEMU_OPTION_ctrl_grab:
3749 ctrl_grab = 1;
3750 break;
3751 case QEMU_OPTION_no_quit:
3752 no_quit = 1;
3753 break;
3754 case QEMU_OPTION_sdl:
3755 #ifdef CONFIG_SDL
3756 display_type = DT_SDL;
3757 break;
3758 #else
3759 error_report("SDL support is disabled");
3760 exit(1);
3761 #endif
3762 case QEMU_OPTION_pidfile:
3763 pid_file = optarg;
3764 break;
3765 case QEMU_OPTION_win2k_hack:
3766 win2k_install_hack = 1;
3767 break;
3768 case QEMU_OPTION_rtc_td_hack: {
3769 static GlobalProperty slew_lost_ticks = {
3770 .driver = "mc146818rtc",
3771 .property = "lost_tick_policy",
3772 .value = "slew",
3773 };
3774
3775 qdev_prop_register_global(&slew_lost_ticks);
3776 break;
3777 }
3778 case QEMU_OPTION_acpitable:
3779 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3780 optarg, true);
3781 if (!opts) {
3782 exit(1);
3783 }
3784 acpi_table_add(opts, &error_fatal);
3785 break;
3786 case QEMU_OPTION_smbios:
3787 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3788 optarg, false);
3789 if (!opts) {
3790 exit(1);
3791 }
3792 smbios_entry_add(opts, &error_fatal);
3793 break;
3794 case QEMU_OPTION_fwcfg:
3795 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3796 optarg, true);
3797 if (opts == NULL) {
3798 exit(1);
3799 }
3800 break;
3801 case QEMU_OPTION_enable_kvm:
3802 olist = qemu_find_opts("machine");
3803 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3804 break;
3805 case QEMU_OPTION_enable_hax:
3806 olist = qemu_find_opts("machine");
3807 qemu_opts_parse_noisily(olist, "accel=hax", false);
3808 break;
3809 case QEMU_OPTION_M:
3810 case QEMU_OPTION_machine:
3811 olist = qemu_find_opts("machine");
3812 opts = qemu_opts_parse_noisily(olist, optarg, true);
3813 if (!opts) {
3814 exit(1);
3815 }
3816 break;
3817 case QEMU_OPTION_no_kvm:
3818 olist = qemu_find_opts("machine");
3819 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3820 break;
3821 case QEMU_OPTION_no_kvm_pit: {
3822 warn_report("ignoring deprecated option");
3823 break;
3824 }
3825 case QEMU_OPTION_no_kvm_pit_reinjection: {
3826 static GlobalProperty kvm_pit_lost_tick_policy = {
3827 .driver = "kvm-pit",
3828 .property = "lost_tick_policy",
3829 .value = "discard",
3830 };
3831
3832 warn_report("deprecated, replaced by "
3833 "-global kvm-pit.lost_tick_policy=discard");
3834 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3835 break;
3836 }
3837 case QEMU_OPTION_accel:
3838 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3839 optarg, true);
3840 optarg = qemu_opt_get(accel_opts, "accel");
3841 if (!optarg || is_help_option(optarg)) {
3842 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3843 exit(0);
3844 }
3845 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3846 false, &error_abort);
3847 qemu_opt_set(opts, "accel", optarg, &error_abort);
3848 break;
3849 case QEMU_OPTION_usb:
3850 olist = qemu_find_opts("machine");
3851 qemu_opts_parse_noisily(olist, "usb=on", false);
3852 break;
3853 case QEMU_OPTION_usbdevice:
3854 error_report("'-usbdevice' is deprecated, please use "
3855 "'-device usb-...' instead");
3856 olist = qemu_find_opts("machine");
3857 qemu_opts_parse_noisily(olist, "usb=on", false);
3858 add_device_config(DEV_USB, optarg);
3859 break;
3860 case QEMU_OPTION_device:
3861 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3862 optarg, true)) {
3863 exit(1);
3864 }
3865 break;
3866 case QEMU_OPTION_smp:
3867 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3868 optarg, true)) {
3869 exit(1);
3870 }
3871 break;
3872 case QEMU_OPTION_vnc:
3873 vnc_parse(optarg, &error_fatal);
3874 break;
3875 case QEMU_OPTION_no_acpi:
3876 acpi_enabled = 0;
3877 break;
3878 case QEMU_OPTION_no_hpet:
3879 no_hpet = 1;
3880 break;
3881 case QEMU_OPTION_balloon:
3882 if (balloon_parse(optarg) < 0) {
3883 error_report("unknown -balloon argument %s", optarg);
3884 exit(1);
3885 }
3886 break;
3887 case QEMU_OPTION_no_reboot:
3888 no_reboot = 1;
3889 break;
3890 case QEMU_OPTION_no_shutdown:
3891 no_shutdown = 1;
3892 break;
3893 case QEMU_OPTION_show_cursor:
3894 cursor_hide = 0;
3895 break;
3896 case QEMU_OPTION_uuid:
3897 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3898 error_report("failed to parse UUID string: wrong format");
3899 exit(1);
3900 }
3901 qemu_uuid_set = true;
3902 break;
3903 case QEMU_OPTION_option_rom:
3904 if (nb_option_roms >= MAX_OPTION_ROMS) {
3905 error_report("too many option ROMs");
3906 exit(1);
3907 }
3908 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3909 optarg, true);
3910 if (!opts) {
3911 exit(1);
3912 }
3913 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3914 option_rom[nb_option_roms].bootindex =
3915 qemu_opt_get_number(opts, "bootindex", -1);
3916 if (!option_rom[nb_option_roms].name) {
3917 error_report("Option ROM file is not specified");
3918 exit(1);
3919 }
3920 nb_option_roms++;
3921 break;
3922 case QEMU_OPTION_semihosting:
3923 semihosting.enabled = true;
3924 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3925 break;
3926 case QEMU_OPTION_semihosting_config:
3927 semihosting.enabled = true;
3928 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3929 optarg, false);
3930 if (opts != NULL) {
3931 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3932 true);
3933 const char *target = qemu_opt_get(opts, "target");
3934 if (target != NULL) {
3935 if (strcmp("native", target) == 0) {
3936 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3937 } else if (strcmp("gdb", target) == 0) {
3938 semihosting.target = SEMIHOSTING_TARGET_GDB;
3939 } else if (strcmp("auto", target) == 0) {
3940 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3941 } else {
3942 error_report("unsupported semihosting-config %s",
3943 optarg);
3944 exit(1);
3945 }
3946 } else {
3947 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3948 }
3949 /* Set semihosting argument count and vector */
3950 qemu_opt_foreach(opts, add_semihosting_arg,
3951 &semihosting, NULL);
3952 } else {
3953 error_report("unsupported semihosting-config %s", optarg);
3954 exit(1);
3955 }
3956 break;
3957 case QEMU_OPTION_tdf:
3958 warn_report("ignoring deprecated option");
3959 break;
3960 case QEMU_OPTION_name:
3961 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3962 optarg, true);
3963 if (!opts) {
3964 exit(1);
3965 }
3966 break;
3967 case QEMU_OPTION_prom_env:
3968 if (nb_prom_envs >= MAX_PROM_ENVS) {
3969 error_report("too many prom variables");
3970 exit(1);
3971 }
3972 prom_envs[nb_prom_envs] = optarg;
3973 nb_prom_envs++;
3974 break;
3975 case QEMU_OPTION_old_param:
3976 old_param = 1;
3977 break;
3978 case QEMU_OPTION_clock:
3979 /* Clock options no longer exist. Keep this option for
3980 * backward compatibility.
3981 */
3982 break;
3983 case QEMU_OPTION_startdate:
3984 configure_rtc_date_offset(optarg, 1);
3985 break;
3986 case QEMU_OPTION_rtc:
3987 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3988 false);
3989 if (!opts) {
3990 exit(1);
3991 }
3992 configure_rtc(opts);
3993 break;
3994 case QEMU_OPTION_tb_size:
3995 #ifndef CONFIG_TCG
3996 error_report("TCG is disabled");
3997 exit(1);
3998 #endif
3999 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
4000 error_report("Invalid argument to -tb-size");
4001 exit(1);
4002 }
4003 break;
4004 case QEMU_OPTION_icount:
4005 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
4006 optarg, true);
4007 if (!icount_opts) {
4008 exit(1);
4009 }
4010 break;
4011 case QEMU_OPTION_incoming:
4012 if (!incoming) {
4013 runstate_set(RUN_STATE_INMIGRATE);
4014 }
4015 incoming = optarg;
4016 break;
4017 case QEMU_OPTION_only_migratable:
4018 /*
4019 * TODO: we can remove this option one day, and we
4020 * should all use:
4021 *
4022 * "-global migration.only-migratable=true"
4023 */
4024 qemu_global_option("migration.only-migratable=true");
4025 break;
4026 case QEMU_OPTION_nodefaults:
4027 has_defaults = 0;
4028 break;
4029 case QEMU_OPTION_xen_domid:
4030 if (!(xen_available())) {
4031 error_report("Option not supported for this target");
4032 exit(1);
4033 }
4034 xen_domid = atoi(optarg);
4035 break;
4036 case QEMU_OPTION_xen_create:
4037 if (!(xen_available())) {
4038 error_report("Option not supported for this target");
4039 exit(1);
4040 }
4041 xen_mode = XEN_CREATE;
4042 break;
4043 case QEMU_OPTION_xen_attach:
4044 if (!(xen_available())) {
4045 error_report("Option not supported for this target");
4046 exit(1);
4047 }
4048 xen_mode = XEN_ATTACH;
4049 break;
4050 case QEMU_OPTION_xen_domid_restrict:
4051 if (!(xen_available())) {
4052 error_report("Option not supported for this target");
4053 exit(1);
4054 }
4055 xen_domid_restrict = true;
4056 break;
4057 case QEMU_OPTION_trace:
4058 g_free(trace_file);
4059 trace_file = trace_opt_parse(optarg);
4060 break;
4061 case QEMU_OPTION_readconfig:
4062 {
4063 int ret = qemu_read_config_file(optarg);
4064 if (ret < 0) {
4065 error_report("read config %s: %s", optarg,
4066 strerror(-ret));
4067 exit(1);
4068 }
4069 break;
4070 }
4071 case QEMU_OPTION_spice:
4072 olist = qemu_find_opts("spice");
4073 if (!olist) {
4074 error_report("spice support is disabled");
4075 exit(1);
4076 }
4077 opts = qemu_opts_parse_noisily(olist, optarg, false);
4078 if (!opts) {
4079 exit(1);
4080 }
4081 display_remote++;
4082 break;
4083 case QEMU_OPTION_writeconfig:
4084 {
4085 FILE *fp;
4086 if (strcmp(optarg, "-") == 0) {
4087 fp = stdout;
4088 } else {
4089 fp = fopen(optarg, "w");
4090 if (fp == NULL) {
4091 error_report("open %s: %s", optarg,
4092 strerror(errno));
4093 exit(1);
4094 }
4095 }
4096 qemu_config_write(fp);
4097 if (fp != stdout) {
4098 fclose(fp);
4099 }
4100 break;
4101 }
4102 case QEMU_OPTION_qtest:
4103 qtest_chrdev = optarg;
4104 break;
4105 case QEMU_OPTION_qtest_log:
4106 qtest_log = optarg;
4107 break;
4108 case QEMU_OPTION_sandbox:
4109 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4110 optarg, true);
4111 if (!opts) {
4112 exit(1);
4113 }
4114 break;
4115 case QEMU_OPTION_add_fd:
4116 #ifndef _WIN32
4117 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4118 optarg, false);
4119 if (!opts) {
4120 exit(1);
4121 }
4122 #else
4123 error_report("File descriptor passing is disabled on this "
4124 "platform");
4125 exit(1);
4126 #endif
4127 break;
4128 case QEMU_OPTION_object:
4129 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4130 optarg, true);
4131 if (!opts) {
4132 exit(1);
4133 }
4134 break;
4135 case QEMU_OPTION_realtime:
4136 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4137 optarg, false);
4138 if (!opts) {
4139 exit(1);
4140 }
4141 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4142 break;
4143 case QEMU_OPTION_msg:
4144 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4145 false);
4146 if (!opts) {
4147 exit(1);
4148 }
4149 configure_msg(opts);
4150 break;
4151 case QEMU_OPTION_dump_vmstate:
4152 if (vmstate_dump_file) {
4153 error_report("only one '-dump-vmstate' "
4154 "option may be given");
4155 exit(1);
4156 }
4157 vmstate_dump_file = fopen(optarg, "w");
4158 if (vmstate_dump_file == NULL) {
4159 error_report("open %s: %s", optarg, strerror(errno));
4160 exit(1);
4161 }
4162 break;
4163 default:
4164 os_parse_cmd_args(popt->index, optarg);
4165 }
4166 }
4167 }
4168 /*
4169 * Clear error location left behind by the loop.
4170 * Best done right after the loop. Do not insert code here!
4171 */
4172 loc_set_none();
4173
4174 replay_configure(icount_opts);
4175
4176 machine_class = select_machine();
4177
4178 set_memory_options(&ram_slots, &maxram_size, machine_class);
4179
4180 os_daemonize();
4181 rcu_disable_atfork();
4182
4183 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4184 error_report("could not acquire pid file: %s", strerror(errno));
4185 exit(1);
4186 }
4187
4188 if (qemu_init_main_loop(&main_loop_err)) {
4189 error_report_err(main_loop_err);
4190 exit(1);
4191 }
4192
4193 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4194 parse_sandbox, NULL, NULL)) {
4195 exit(1);
4196 }
4197
4198 if (qemu_opts_foreach(qemu_find_opts("name"),
4199 parse_name, NULL, NULL)) {
4200 exit(1);
4201 }
4202
4203 #ifndef _WIN32
4204 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4205 parse_add_fd, NULL, NULL)) {
4206 exit(1);
4207 }
4208
4209 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4210 cleanup_add_fd, NULL, NULL)) {
4211 exit(1);
4212 }
4213 #endif
4214
4215 current_machine = MACHINE(object_new(object_class_get_name(
4216 OBJECT_CLASS(machine_class))));
4217 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4218 exit(0);
4219 }
4220 object_property_add_child(object_get_root(), "machine",
4221 OBJECT(current_machine), &error_abort);
4222
4223 if (machine_class->minimum_page_bits) {
4224 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4225 /* This would be a board error: specifying a minimum smaller than
4226 * a target's compile-time fixed setting.
4227 */
4228 g_assert_not_reached();
4229 }
4230 }
4231
4232 cpu_exec_init_all();
4233
4234 if (machine_class->hw_version) {
4235 qemu_set_hw_version(machine_class->hw_version);
4236 }
4237
4238 if (cpu_model && is_help_option(cpu_model)) {
4239 list_cpus(stdout, &fprintf, cpu_model);
4240 exit(0);
4241 }
4242
4243 if (!trace_init_backends()) {
4244 exit(1);
4245 }
4246 trace_init_file(trace_file);
4247
4248 /* Open the logfile at this point and set the log mask if necessary.
4249 */
4250 if (log_file) {
4251 qemu_set_log_filename(log_file, &error_fatal);
4252 }
4253
4254 if (log_mask) {
4255 int mask;
4256 mask = qemu_str_to_log_mask(log_mask);
4257 if (!mask) {
4258 qemu_print_log_usage(stdout);
4259 exit(1);
4260 }
4261 qemu_set_log(mask);
4262 } else {
4263 qemu_set_log(0);
4264 }
4265
4266 /* add configured firmware directories */
4267 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4268 for (i = 0; dirs[i] != NULL; i++) {
4269 qemu_add_data_dir(dirs[i]);
4270 }
4271
4272 /* try to find datadir relative to the executable path */
4273 qemu_add_data_dir(os_find_datadir());
4274
4275 /* add the datadir specified when building */
4276 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4277
4278 /* -L help lists the data directories and exits. */
4279 if (list_data_dirs) {
4280 for (i = 0; i < data_dir_idx; i++) {
4281 printf("%s\n", data_dir[i]);
4282 }
4283 exit(0);
4284 }
4285
4286 /* machine_class: default to UP */
4287 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4288 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4289 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4290
4291 /* default to machine_class->default_cpus */
4292 smp_cpus = machine_class->default_cpus;
4293 max_cpus = machine_class->default_cpus;
4294
4295 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4296
4297 /* sanity-check smp_cpus and max_cpus against machine_class */
4298 if (smp_cpus < machine_class->min_cpus) {
4299 error_report("Invalid SMP CPUs %d. The min CPUs "
4300 "supported by machine '%s' is %d", smp_cpus,
4301 machine_class->name, machine_class->min_cpus);
4302 exit(1);
4303 }
4304 if (max_cpus > machine_class->max_cpus) {
4305 error_report("Invalid SMP CPUs %d. The max CPUs "
4306 "supported by machine '%s' is %d", max_cpus,
4307 machine_class->name, machine_class->max_cpus);
4308 exit(1);
4309 }
4310
4311 /*
4312 * Get the default machine options from the machine if it is not already
4313 * specified either by the configuration file or by the command line.
4314 */
4315 if (machine_class->default_machine_opts) {
4316 qemu_opts_set_defaults(qemu_find_opts("machine"),
4317 machine_class->default_machine_opts, 0);
4318 }
4319
4320 qemu_opts_foreach(qemu_find_opts("device"),
4321 default_driver_check, NULL, NULL);
4322 qemu_opts_foreach(qemu_find_opts("global"),
4323 default_driver_check, NULL, NULL);
4324
4325 if (!vga_model && !default_vga) {
4326 vga_interface_type = VGA_DEVICE;
4327 }
4328 if (!has_defaults || machine_class->no_serial) {
4329 default_serial = 0;
4330 }
4331 if (!has_defaults || machine_class->no_parallel) {
4332 default_parallel = 0;
4333 }
4334 if (!has_defaults || !machine_class->use_virtcon) {
4335 default_virtcon = 0;
4336 }
4337 if (!has_defaults || !machine_class->use_sclp) {
4338 default_sclp = 0;
4339 }
4340 if (!has_defaults || machine_class->no_floppy) {
4341 default_floppy = 0;
4342 }
4343 if (!has_defaults || machine_class->no_cdrom) {
4344 default_cdrom = 0;
4345 }
4346 if (!has_defaults || machine_class->no_sdcard) {
4347 default_sdcard = 0;
4348 }
4349 if (!has_defaults) {
4350 default_monitor = 0;
4351 default_net = 0;
4352 default_vga = 0;
4353 }
4354
4355 if (is_daemonized()) {
4356 /* According to documentation and historically, -nographic redirects
4357 * serial port, parallel port and monitor to stdio, which does not work
4358 * with -daemonize. We can redirect these to null instead, but since
4359 * -nographic is legacy, let's just error out.
4360 * We disallow -nographic only if all other ports are not redirected
4361 * explicitly, to not break existing legacy setups which uses
4362 * -nographic _and_ redirects all ports explicitly - this is valid
4363 * usage, -nographic is just a no-op in this case.
4364 */
4365 if (nographic
4366 && (default_parallel || default_serial
4367 || default_monitor || default_virtcon)) {
4368 error_report("-nographic cannot be used with -daemonize");
4369 exit(1);
4370 }
4371 #ifdef CONFIG_CURSES
4372 if (display_type == DT_CURSES) {
4373 error_report("curses display cannot be used with -daemonize");
4374 exit(1);
4375 }
4376 #endif
4377 }
4378
4379 if (nographic) {
4380 if (default_parallel)
4381 add_device_config(DEV_PARALLEL, "null");
4382 if (default_serial && default_monitor) {
4383 add_device_config(DEV_SERIAL, "mon:stdio");
4384 } else if (default_virtcon && default_monitor) {
4385 add_device_config(DEV_VIRTCON, "mon:stdio");
4386 } else if (default_sclp && default_monitor) {
4387 add_device_config(DEV_SCLP, "mon:stdio");
4388 } else {
4389 if (default_serial)
4390 add_device_config(DEV_SERIAL, "stdio");
4391 if (default_virtcon)
4392 add_device_config(DEV_VIRTCON, "stdio");
4393 if (default_sclp) {
4394 add_device_config(DEV_SCLP, "stdio");
4395 }
4396 if (default_monitor)
4397 monitor_parse("stdio", "readline", false);
4398 }
4399 } else {
4400 if (default_serial)
4401 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4402 if (default_parallel)
4403 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4404 if (default_monitor)
4405 monitor_parse("vc:80Cx24C", "readline", false);
4406 if (default_virtcon)
4407 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4408 if (default_sclp) {
4409 add_device_config(DEV_SCLP, "vc:80Cx24C");
4410 }
4411 }
4412
4413 #if defined(CONFIG_VNC)
4414 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4415 display_remote++;
4416 }
4417 #endif
4418 if (display_type == DT_DEFAULT && !display_remote) {
4419 #if defined(CONFIG_GTK)
4420 display_type = DT_GTK;
4421 #elif defined(CONFIG_SDL)
4422 display_type = DT_SDL;
4423 #elif defined(CONFIG_COCOA)
4424 display_type = DT_COCOA;
4425 #elif defined(CONFIG_VNC)
4426 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4427 #else
4428 display_type = DT_NONE;
4429 #endif
4430 }
4431
4432 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4433 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4434 "for SDL, ignoring option");
4435 }
4436 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4437 error_report("-no-quit is only valid for GTK and SDL, "
4438 "ignoring option");
4439 }
4440
4441 if (display_type == DT_GTK) {
4442 early_gtk_display_init(request_opengl);
4443 }
4444
4445 if (display_type == DT_SDL) {
4446 sdl_display_early_init(request_opengl);
4447 }
4448
4449 qemu_console_early_init();
4450
4451 if (request_opengl == 1 && display_opengl == 0) {
4452 #if defined(CONFIG_OPENGL)
4453 error_report("OpenGL is not supported by the display");
4454 #else
4455 error_report("OpenGL support is disabled");
4456 #endif
4457 exit(1);
4458 }
4459
4460 page_size_init();
4461 socket_init();
4462
4463 if (qemu_opts_foreach(qemu_find_opts("object"),
4464 user_creatable_add_opts_foreach,
4465 object_create_initial, NULL)) {
4466 exit(1);
4467 }
4468
4469 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4470 chardev_init_func, NULL, NULL)) {
4471 exit(1);
4472 }
4473
4474 #ifdef CONFIG_VIRTFS
4475 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4476 fsdev_init_func, NULL, NULL)) {
4477 exit(1);
4478 }
4479 #endif
4480
4481 if (qemu_opts_foreach(qemu_find_opts("device"),
4482 device_help_func, NULL, NULL)) {
4483 exit(0);
4484 }
4485
4486 machine_opts = qemu_get_machine_opts();
4487 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4488 NULL)) {
4489 object_unref(OBJECT(current_machine));
4490 exit(1);
4491 }
4492
4493 configure_accelerator(current_machine);
4494
4495 /*
4496 * Register all the global properties, including accel properties,
4497 * machine properties, and user-specified ones.
4498 */
4499 register_global_properties(current_machine);
4500
4501 /*
4502 * Migration object can only be created after global properties
4503 * are applied correctly.
4504 */
4505 migration_object_init();
4506
4507 if (qtest_chrdev) {
4508 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4509 }
4510
4511 machine_opts = qemu_get_machine_opts();
4512 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4513 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4514 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4515 bios_name = qemu_opt_get(machine_opts, "firmware");
4516
4517 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4518 if (opts) {
4519 boot_order = qemu_opt_get(opts, "order");
4520 if (boot_order) {
4521 validate_bootdevices(boot_order, &error_fatal);
4522 }
4523
4524 boot_once = qemu_opt_get(opts, "once");
4525 if (boot_once) {
4526 validate_bootdevices(boot_once, &error_fatal);
4527 }
4528
4529 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4530 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4531 }
4532
4533 if (!boot_order) {
4534 boot_order = machine_class->default_boot_order;
4535 }
4536
4537 if (!kernel_cmdline) {
4538 kernel_cmdline = "";
4539 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4540 }
4541
4542 linux_boot = (kernel_filename != NULL);
4543
4544 if (!linux_boot && *kernel_cmdline != '\0') {
4545 error_report("-append only allowed with -kernel option");
4546 exit(1);
4547 }
4548
4549 if (!linux_boot && initrd_filename != NULL) {
4550 error_report("-initrd only allowed with -kernel option");
4551 exit(1);
4552 }
4553
4554 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4555 /* fall back to the -kernel/-append */
4556 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4557 }
4558
4559 os_set_line_buffering();
4560
4561 /* spice needs the timers to be initialized by this point */
4562 qemu_spice_init();
4563
4564 cpu_ticks_init();
4565 if (icount_opts) {
4566 if (!tcg_enabled()) {
4567 error_report("-icount is not allowed with hardware virtualization");
4568 exit(1);
4569 }
4570 configure_icount(icount_opts, &error_abort);
4571 qemu_opts_del(icount_opts);
4572 }
4573
4574 if (tcg_enabled()) {
4575 qemu_tcg_configure(accel_opts, &error_fatal);
4576 }
4577
4578 if (default_net) {
4579 QemuOptsList *net = qemu_find_opts("net");
4580 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4581 #ifdef CONFIG_SLIRP
4582 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4583 #endif
4584 }
4585
4586 colo_info_init();
4587
4588 if (net_init_clients() < 0) {
4589 exit(1);
4590 }
4591
4592 if (qemu_opts_foreach(qemu_find_opts("object"),
4593 user_creatable_add_opts_foreach,
4594 object_create_delayed, NULL)) {
4595 exit(1);
4596 }
4597
4598 if (tpm_init() < 0) {
4599 exit(1);
4600 }
4601
4602 /* init the bluetooth world */
4603 if (foreach_device_config(DEV_BT, bt_parse))
4604 exit(1);
4605
4606 if (!xen_enabled()) {
4607 /* On 32-bit hosts, QEMU is limited by virtual address space */
4608 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4609 error_report("at most 2047 MB RAM can be simulated");
4610 exit(1);
4611 }
4612 }
4613
4614 blk_mig_init();
4615 ram_mig_init();
4616
4617 /* If the currently selected machine wishes to override the units-per-bus
4618 * property of its default HBA interface type, do so now. */
4619 if (machine_class->units_per_default_bus) {
4620 override_max_devs(machine_class->block_default_type,
4621 machine_class->units_per_default_bus);
4622 }
4623
4624 /* open the virtual block devices */
4625 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4626 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4627
4628 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4629 loc_push_restore(&bdo->loc);
4630 qmp_blockdev_add(bdo->bdo, &error_fatal);
4631 loc_pop(&bdo->loc);
4632 qapi_free_BlockdevOptions(bdo->bdo);
4633 g_free(bdo);
4634 }
4635 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4636 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4637 NULL, NULL);
4638 }
4639 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4640 &machine_class->block_default_type, NULL)) {
4641 exit(1);
4642 }
4643
4644 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4645 CDROM_OPTS);
4646 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4647 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4648
4649 if (qemu_opts_foreach(qemu_find_opts("mon"),
4650 mon_init_func, NULL, NULL)) {
4651 exit(1);
4652 }
4653
4654 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4655 exit(1);
4656 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4657 exit(1);
4658 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4659 exit(1);
4660 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4661 exit(1);
4662 }
4663 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4664 exit(1);
4665
4666 /* If no default VGA is requested, the default is "none". */
4667 if (default_vga) {
4668 if (machine_class->default_display) {
4669 vga_model = machine_class->default_display;
4670 } else if (vga_interface_available(VGA_CIRRUS)) {
4671 vga_model = "cirrus";
4672 } else if (vga_interface_available(VGA_STD)) {
4673 vga_model = "std";
4674 }
4675 }
4676 if (vga_model) {
4677 select_vgahw(vga_model);
4678 }
4679
4680 if (watchdog) {
4681 i = select_watchdog(watchdog);
4682 if (i > 0)
4683 exit (i == 1 ? 1 : 0);
4684 }
4685
4686 /* This checkpoint is required by replay to separate prior clock
4687 reading from the other reads, because timer polling functions query
4688 clock values from the log. */
4689 replay_checkpoint(CHECKPOINT_INIT);
4690 qdev_machine_init();
4691
4692 current_machine->ram_size = ram_size;
4693 current_machine->maxram_size = maxram_size;
4694 current_machine->ram_slots = ram_slots;
4695 current_machine->boot_order = boot_order;
4696 current_machine->cpu_model = cpu_model;
4697
4698 parse_numa_opts(current_machine);
4699
4700 /* parse features once if machine provides default cpu_type */
4701 if (machine_class->default_cpu_type) {
4702 current_machine->cpu_type = machine_class->default_cpu_type;
4703 if (cpu_model) {
4704 current_machine->cpu_type =
4705 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4706 }
4707 }
4708
4709 machine_run_board_init(current_machine);
4710
4711 realtime_init();
4712
4713 soundhw_init();
4714
4715 if (hax_enabled()) {
4716 hax_sync_vcpus();
4717 }
4718
4719 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4720 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4721 exit(1);
4722 }
4723
4724 /* init USB devices */
4725 if (machine_usb(current_machine)) {
4726 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4727 exit(1);
4728 }
4729
4730 /* Check if IGD GFX passthrough. */
4731 igd_gfx_passthru();
4732
4733 /* init generic devices */
4734 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4735 if (qemu_opts_foreach(qemu_find_opts("device"),
4736 device_init_func, NULL, NULL)) {
4737 exit(1);
4738 }
4739
4740 cpu_synchronize_all_post_init();
4741
4742 rom_reset_order_override();
4743
4744 /*
4745 * Create frontends for -drive if=scsi leftovers.
4746 * Normally, frontends for -drive get created by machine
4747 * initialization for onboard SCSI HBAs. However, we create a few
4748 * more ever since SCSI qdevification, but this is pretty much an
4749 * implementation accident, and deprecated.
4750 */
4751 scsi_legacy_handle_cmdline();
4752
4753 /* Did we create any drives that we failed to create a device for? */
4754 drive_check_orphaned();
4755
4756 /* Don't warn about the default network setup that you get if
4757 * no command line -net or -netdev options are specified. There
4758 * are two cases that we would otherwise complain about:
4759 * (1) board doesn't support a NIC but the implicit "-net nic"
4760 * requested one
4761 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4762 * sets up a nic that isn't connected to anything.
4763 */
4764 if (!default_net) {
4765 net_check_clients();
4766 }
4767
4768
4769 if (boot_once) {
4770 qemu_boot_set(boot_once, &error_fatal);
4771 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4772 }
4773
4774 ds = init_displaystate();
4775
4776 /* init local displays */
4777 switch (display_type) {
4778 case DT_CURSES:
4779 curses_display_init(ds, full_screen);
4780 break;
4781 case DT_SDL:
4782 sdl_display_init(ds, full_screen, no_frame);
4783 break;
4784 case DT_COCOA:
4785 cocoa_display_init(ds, full_screen);
4786 break;
4787 case DT_GTK:
4788 gtk_display_init(ds, full_screen, grab_on_hover);
4789 break;
4790 default:
4791 break;
4792 }
4793
4794 /* must be after terminal init, SDL library changes signal handlers */
4795 os_setup_signal_handling();
4796
4797 /* init remote displays */
4798 #ifdef CONFIG_VNC
4799 qemu_opts_foreach(qemu_find_opts("vnc"),
4800 vnc_init_func, NULL, NULL);
4801 #endif
4802
4803 if (using_spice) {
4804 qemu_spice_display_init();
4805 }
4806
4807 #ifdef CONFIG_OPENGL_DMABUF
4808 if (display_type == DT_EGL) {
4809 egl_headless_init();
4810 }
4811 #endif
4812
4813 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4814 exit(1);
4815 }
4816
4817 qdev_machine_creation_done();
4818
4819 /* TODO: once all bus devices are qdevified, this should be done
4820 * when bus is created by qdev.c */
4821 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4822 qemu_run_machine_init_done_notifiers();
4823
4824 if (rom_check_and_register_reset() != 0) {
4825 error_report("rom check and register reset failed");
4826 exit(1);
4827 }
4828
4829 replay_start();
4830
4831 /* This checkpoint is required by replay to separate prior clock
4832 reading from the other reads, because timer polling functions query
4833 clock values from the log. */
4834 replay_checkpoint(CHECKPOINT_RESET);
4835 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4836 register_global_state();
4837 if (replay_mode != REPLAY_MODE_NONE) {
4838 replay_vmstate_init();
4839 } else if (loadvm) {
4840 Error *local_err = NULL;
4841 if (load_snapshot(loadvm, &local_err) < 0) {
4842 error_report_err(local_err);
4843 autostart = 0;
4844 }
4845 }
4846
4847 qdev_prop_check_globals();
4848 if (vmstate_dump_file) {
4849 /* dump and exit */
4850 dump_vmstate_json_to_file(vmstate_dump_file);
4851 return 0;
4852 }
4853
4854 if (incoming) {
4855 Error *local_err = NULL;
4856 qemu_start_incoming_migration(incoming, &local_err);
4857 if (local_err) {
4858 error_reportf_err(local_err, "-incoming %s: ", incoming);
4859 exit(1);
4860 }
4861 } else if (autostart) {
4862 vm_start();
4863 }
4864
4865 os_setup_post();
4866
4867 main_loop();
4868 replay_disable_events();
4869 iothread_stop_all();
4870
4871 pause_all_vcpus();
4872 bdrv_close_all();
4873 res_free();
4874
4875 /* vhost-user must be cleaned up before chardevs. */
4876 tpm_cleanup();
4877 net_cleanup();
4878 audio_cleanup();
4879 monitor_cleanup();
4880 qemu_chr_cleanup();
4881 user_creatable_cleanup();
4882 /* TODO: unref root container, check all devices are ok */
4883
4884 return 0;
4885 }
AR7 emulation for QEMU