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ui/gtk: build as module
[qemu/ar7.git] / vl.c
blobe5f6de1843489e37e6f8b3f6a52de506d8768dff
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
31
32 #ifdef CONFIG_SECCOMP
33 #include <sys/prctl.h>
34 #include "sysemu/seccomp.h"
35 #endif
36
37 #ifdef CONFIG_SDL
38 #if defined(__APPLE__) || defined(main)
39 #include <SDL.h>
40 int qemu_main(int argc, char **argv, char **envp);
41 int main(int argc, char **argv)
42 {
43 return qemu_main(argc, argv, NULL);
44 }
45 #undef main
46 #define main qemu_main
47 #endif
48 #endif /* CONFIG_SDL */
49
50 #ifdef CONFIG_COCOA
51 #undef main
52 #define main qemu_main
53 #endif /* CONFIG_COCOA */
54
55
56 #include "qemu/error-report.h"
57 #include "qemu/sockets.h"
58 #include "hw/hw.h"
59 #include "hw/boards.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "hw/bt.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/smbios/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
70 #include "hw/qdev.h"
71 #include "hw/loader.h"
72 #include "monitor/qdev.h"
73 #include "sysemu/bt.h"
74 #include "net/net.h"
75 #include "net/slirp.h"
76 #include "monitor/monitor.h"
77 #include "ui/console.h"
78 #include "ui/input.h"
79 #include "sysemu/sysemu.h"
80 #include "sysemu/numa.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "chardev/char.h"
84 #include "qemu/bitmap.h"
85 #include "qemu/log.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/misc.h"
89 #include "migration/snapshot.h"
90 #include "migration/global_state.h"
91 #include "sysemu/tpm.h"
92 #include "sysemu/dma.h"
93 #include "hw/audio/soundhw.h"
94 #include "audio/audio.h"
95 #include "sysemu/cpus.h"
96 #include "migration/colo.h"
97 #include "sysemu/kvm.h"
98 #include "sysemu/hax.h"
99 #include "qapi/qobject-input-visitor.h"
100 #include "qapi-visit.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qmp-commands.h"
105 #include "qemu/main-loop.h"
106 #ifdef CONFIG_VIRTFS
107 #include "fsdev/qemu-fsdev.h"
108 #endif
109 #include "sysemu/qtest.h"
110
111 #include "disas/disas.h"
112
113
114 #include "slirp/libslirp.h"
115
116 #include "trace-root.h"
117 #include "trace/control.h"
118 #include "qemu/queue.h"
119 #include "sysemu/arch_init.h"
120
121 #include "ui/qemu-spice.h"
122 #include "qapi/string-input-visitor.h"
123 #include "qapi/opts-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "qapi-event.h"
126 #include "exec/semihost.h"
127 #include "crypto/init.h"
128 #include "sysemu/replay.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133 #define MAX_SCLP_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int display_opengl;
140 const char* keyboard_layout = NULL;
141 ram_addr_t ram_size;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 int nb_nics;
146 NICInfo nd_table[MAX_NICS];
147 int autostart;
148 static int rtc_utc = 1;
149 static int rtc_date_offset = -1; /* -1 means no change */
150 QEMUClockType rtc_clock;
151 int vga_interface_type = VGA_NONE;
152 static DisplayOptions dpy;
153 int no_frame;
154 Chardev *serial_hds[MAX_SERIAL_PORTS];
155 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
156 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
157 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
158 int win2k_install_hack = 0;
159 int singlestep = 0;
160 int smp_cpus;
161 unsigned int max_cpus;
162 int smp_cores = 1;
163 int smp_threads = 1;
164 int acpi_enabled = 1;
165 int no_hpet = 0;
166 int fd_bootchk = 1;
167 static int no_reboot;
168 int no_shutdown = 0;
169 int cursor_hide = 1;
170 int graphic_rotate = 0;
171 const char *watchdog;
172 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
173 int nb_option_roms;
174 int old_param = 0;
175 const char *qemu_name;
176 int alt_grab = 0;
177 int ctrl_grab = 0;
178 unsigned int nb_prom_envs = 0;
179 const char *prom_envs[MAX_PROM_ENVS];
180 int boot_menu;
181 bool boot_strict;
182 uint8_t *boot_splash_filedata;
183 size_t boot_splash_filedata_size;
184 uint8_t qemu_extra_params_fw[2];
185
186 int icount_align_option;
187
188 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
189 * little-endian "wire format" described in the SMBIOS 2.6 specification.
190 */
191 QemuUUID qemu_uuid;
192 bool qemu_uuid_set;
193
194 static NotifierList exit_notifiers =
195 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
196
197 static NotifierList machine_init_done_notifiers =
198 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
199
200 bool xen_allowed;
201 uint32_t xen_domid;
202 enum xen_mode xen_mode = XEN_EMULATE;
203 bool xen_domid_restrict;
204
205 static int has_defaults = 1;
206 static int default_serial = 1;
207 static int default_parallel = 1;
208 static int default_virtcon = 1;
209 static int default_sclp = 1;
210 static int default_monitor = 1;
211 static int default_floppy = 1;
212 static int default_cdrom = 1;
213 static int default_sdcard = 1;
214 static int default_vga = 1;
215 static int default_net = 1;
216
217 static struct {
218 const char *driver;
219 int *flag;
220 } default_list[] = {
221 { .driver = "isa-serial", .flag = &default_serial },
222 { .driver = "isa-parallel", .flag = &default_parallel },
223 { .driver = "isa-fdc", .flag = &default_floppy },
224 { .driver = "floppy", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .flag = &default_cdrom },
229 { .driver = "scsi-hd", .flag = &default_cdrom },
230 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
231 { .driver = "virtio-serial", .flag = &default_virtcon },
232 { .driver = "VGA", .flag = &default_vga },
233 { .driver = "isa-vga", .flag = &default_vga },
234 { .driver = "cirrus-vga", .flag = &default_vga },
235 { .driver = "isa-cirrus-vga", .flag = &default_vga },
236 { .driver = "vmware-svga", .flag = &default_vga },
237 { .driver = "qxl-vga", .flag = &default_vga },
238 { .driver = "virtio-vga", .flag = &default_vga },
239 };
240
241 static QemuOptsList qemu_rtc_opts = {
242 .name = "rtc",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
244 .desc = {
245 {
246 .name = "base",
247 .type = QEMU_OPT_STRING,
248 },{
249 .name = "clock",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "driftfix",
253 .type = QEMU_OPT_STRING,
254 },
255 { /* end of list */ }
256 },
257 };
258
259 static QemuOptsList qemu_sandbox_opts = {
260 .name = "sandbox",
261 .implied_opt_name = "enable",
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
263 .desc = {
264 {
265 .name = "enable",
266 .type = QEMU_OPT_BOOL,
267 },
268 {
269 .name = "obsolete",
270 .type = QEMU_OPT_STRING,
271 },
272 {
273 .name = "elevateprivileges",
274 .type = QEMU_OPT_STRING,
275 },
276 {
277 .name = "spawn",
278 .type = QEMU_OPT_STRING,
279 },
280 {
281 .name = "resourcecontrol",
282 .type = QEMU_OPT_STRING,
283 },
284 { /* end of list */ }
285 },
286 };
287
288 static QemuOptsList qemu_option_rom_opts = {
289 .name = "option-rom",
290 .implied_opt_name = "romfile",
291 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
292 .desc = {
293 {
294 .name = "bootindex",
295 .type = QEMU_OPT_NUMBER,
296 }, {
297 .name = "romfile",
298 .type = QEMU_OPT_STRING,
299 },
300 { /* end of list */ }
301 },
302 };
303
304 static QemuOptsList qemu_machine_opts = {
305 .name = "machine",
306 .implied_opt_name = "type",
307 .merge_lists = true,
308 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
309 .desc = {
310 /*
311 * no elements => accept any
312 * sanity checking will happen later
313 * when setting machine properties
314 */
315 { }
316 },
317 };
318
319 static QemuOptsList qemu_accel_opts = {
320 .name = "accel",
321 .implied_opt_name = "accel",
322 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
323 .merge_lists = true,
324 .desc = {
325 {
326 .name = "accel",
327 .type = QEMU_OPT_STRING,
328 .help = "Select the type of accelerator",
329 },
330 {
331 .name = "thread",
332 .type = QEMU_OPT_STRING,
333 .help = "Enable/disable multi-threaded TCG",
334 },
335 { /* end of list */ }
336 },
337 };
338
339 static QemuOptsList qemu_boot_opts = {
340 .name = "boot-opts",
341 .implied_opt_name = "order",
342 .merge_lists = true,
343 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
344 .desc = {
345 {
346 .name = "order",
347 .type = QEMU_OPT_STRING,
348 }, {
349 .name = "once",
350 .type = QEMU_OPT_STRING,
351 }, {
352 .name = "menu",
353 .type = QEMU_OPT_BOOL,
354 }, {
355 .name = "splash",
356 .type = QEMU_OPT_STRING,
357 }, {
358 .name = "splash-time",
359 .type = QEMU_OPT_STRING,
360 }, {
361 .name = "reboot-timeout",
362 .type = QEMU_OPT_STRING,
363 }, {
364 .name = "strict",
365 .type = QEMU_OPT_BOOL,
366 },
367 { /*End of list */ }
368 },
369 };
370
371 static QemuOptsList qemu_add_fd_opts = {
372 .name = "add-fd",
373 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
374 .desc = {
375 {
376 .name = "fd",
377 .type = QEMU_OPT_NUMBER,
378 .help = "file descriptor of which a duplicate is added to fd set",
379 },{
380 .name = "set",
381 .type = QEMU_OPT_NUMBER,
382 .help = "ID of the fd set to add fd to",
383 },{
384 .name = "opaque",
385 .type = QEMU_OPT_STRING,
386 .help = "free-form string used to describe fd",
387 },
388 { /* end of list */ }
389 },
390 };
391
392 static QemuOptsList qemu_object_opts = {
393 .name = "object",
394 .implied_opt_name = "qom-type",
395 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
396 .desc = {
397 { }
398 },
399 };
400
401 static QemuOptsList qemu_tpmdev_opts = {
402 .name = "tpmdev",
403 .implied_opt_name = "type",
404 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
405 .desc = {
406 /* options are defined in the TPM backends */
407 { /* end of list */ }
408 },
409 };
410
411 static QemuOptsList qemu_realtime_opts = {
412 .name = "realtime",
413 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
414 .desc = {
415 {
416 .name = "mlock",
417 .type = QEMU_OPT_BOOL,
418 },
419 { /* end of list */ }
420 },
421 };
422
423 static QemuOptsList qemu_msg_opts = {
424 .name = "msg",
425 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
426 .desc = {
427 {
428 .name = "timestamp",
429 .type = QEMU_OPT_BOOL,
430 },
431 { /* end of list */ }
432 },
433 };
434
435 static QemuOptsList qemu_name_opts = {
436 .name = "name",
437 .implied_opt_name = "guest",
438 .merge_lists = true,
439 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
440 .desc = {
441 {
442 .name = "guest",
443 .type = QEMU_OPT_STRING,
444 .help = "Sets the name of the guest.\n"
445 "This name will be displayed in the SDL window caption.\n"
446 "The name will also be used for the VNC server",
447 }, {
448 .name = "process",
449 .type = QEMU_OPT_STRING,
450 .help = "Sets the name of the QEMU process, as shown in top etc",
451 }, {
452 .name = "debug-threads",
453 .type = QEMU_OPT_BOOL,
454 .help = "When enabled, name the individual threads; defaults off.\n"
455 "NOTE: The thread names are for debugging and not a\n"
456 "stable API.",
457 },
458 { /* End of list */ }
459 },
460 };
461
462 static QemuOptsList qemu_mem_opts = {
463 .name = "memory",
464 .implied_opt_name = "size",
465 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
466 .merge_lists = true,
467 .desc = {
468 {
469 .name = "size",
470 .type = QEMU_OPT_SIZE,
471 },
472 {
473 .name = "slots",
474 .type = QEMU_OPT_NUMBER,
475 },
476 {
477 .name = "maxmem",
478 .type = QEMU_OPT_SIZE,
479 },
480 { /* end of list */ }
481 },
482 };
483
484 static QemuOptsList qemu_icount_opts = {
485 .name = "icount",
486 .implied_opt_name = "shift",
487 .merge_lists = true,
488 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
489 .desc = {
490 {
491 .name = "shift",
492 .type = QEMU_OPT_STRING,
493 }, {
494 .name = "align",
495 .type = QEMU_OPT_BOOL,
496 }, {
497 .name = "sleep",
498 .type = QEMU_OPT_BOOL,
499 }, {
500 .name = "rr",
501 .type = QEMU_OPT_STRING,
502 }, {
503 .name = "rrfile",
504 .type = QEMU_OPT_STRING,
505 }, {
506 .name = "rrsnapshot",
507 .type = QEMU_OPT_STRING,
508 },
509 { /* end of list */ }
510 },
511 };
512
513 static QemuOptsList qemu_semihosting_config_opts = {
514 .name = "semihosting-config",
515 .implied_opt_name = "enable",
516 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
517 .desc = {
518 {
519 .name = "enable",
520 .type = QEMU_OPT_BOOL,
521 }, {
522 .name = "target",
523 .type = QEMU_OPT_STRING,
524 }, {
525 .name = "arg",
526 .type = QEMU_OPT_STRING,
527 },
528 { /* end of list */ }
529 },
530 };
531
532 static QemuOptsList qemu_fw_cfg_opts = {
533 .name = "fw_cfg",
534 .implied_opt_name = "name",
535 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
536 .desc = {
537 {
538 .name = "name",
539 .type = QEMU_OPT_STRING,
540 .help = "Sets the fw_cfg name of the blob to be inserted",
541 }, {
542 .name = "file",
543 .type = QEMU_OPT_STRING,
544 .help = "Sets the name of the file from which\n"
545 "the fw_cfg blob will be loaded",
546 }, {
547 .name = "string",
548 .type = QEMU_OPT_STRING,
549 .help = "Sets content of the blob to be inserted from a string",
550 },
551 { /* end of list */ }
552 },
553 };
554
555 /**
556 * Get machine options
557 *
558 * Returns: machine options (never null).
559 */
560 QemuOpts *qemu_get_machine_opts(void)
561 {
562 return qemu_find_opts_singleton("machine");
563 }
564
565 const char *qemu_get_vm_name(void)
566 {
567 return qemu_name;
568 }
569
570 static void res_free(void)
571 {
572 g_free(boot_splash_filedata);
573 boot_splash_filedata = NULL;
574 }
575
576 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
577 {
578 const char *driver = qemu_opt_get(opts, "driver");
579 int i;
580
581 if (!driver)
582 return 0;
583 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
584 if (strcmp(default_list[i].driver, driver) != 0)
585 continue;
586 *(default_list[i].flag) = 0;
587 }
588 return 0;
589 }
590
591 /***********************************************************/
592 /* QEMU state */
593
594 static RunState current_run_state = RUN_STATE_PRELAUNCH;
595
596 /* We use RUN_STATE__MAX but any invalid value will do */
597 static RunState vmstop_requested = RUN_STATE__MAX;
598 static QemuMutex vmstop_lock;
599
600 typedef struct {
601 RunState from;
602 RunState to;
603 } RunStateTransition;
604
605 static const RunStateTransition runstate_transitions_def[] = {
606 /* from -> to */
607 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
608 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
609 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
610
611 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
612 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
613 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
615 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
616 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
617 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
618 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
619 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
621 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
622 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
623
624 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
625 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
626 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
627
628 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
629 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
630 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
631
632 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
633 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
635 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
636 { RUN_STATE_PAUSED, RUN_STATE_COLO},
637
638 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
639 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
640 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
641
642 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
643 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
645
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
648 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
651
652 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
653 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
654
655 { RUN_STATE_COLO, RUN_STATE_RUNNING },
656
657 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
658 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
659 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
660 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
661 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
662 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
663 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
664 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
665 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
666 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
667 { RUN_STATE_RUNNING, RUN_STATE_COLO},
668
669 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
670
671 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
672 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
673 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
674
675 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
676 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
677 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
678 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
679 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
680 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
681
682 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
683 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
684 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
685 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
686
687 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
688 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
689 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
690
691 { RUN_STATE__MAX, RUN_STATE__MAX },
692 };
693
694 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
695
696 bool runstate_check(RunState state)
697 {
698 return current_run_state == state;
699 }
700
701 bool runstate_store(char *str, size_t size)
702 {
703 const char *state = RunState_str(current_run_state);
704 size_t len = strlen(state) + 1;
705
706 if (len > size) {
707 return false;
708 }
709 memcpy(str, state, len);
710 return true;
711 }
712
713 static void runstate_init(void)
714 {
715 const RunStateTransition *p;
716
717 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
718 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
719 runstate_valid_transitions[p->from][p->to] = true;
720 }
721
722 qemu_mutex_init(&vmstop_lock);
723 }
724
725 /* This function will abort() on invalid state transitions */
726 void runstate_set(RunState new_state)
727 {
728 assert(new_state < RUN_STATE__MAX);
729
730 if (current_run_state == new_state) {
731 return;
732 }
733
734 if (!runstate_valid_transitions[current_run_state][new_state]) {
735 error_report("invalid runstate transition: '%s' -> '%s'",
736 RunState_str(current_run_state),
737 RunState_str(new_state));
738 abort();
739 }
740 trace_runstate_set(new_state);
741 current_run_state = new_state;
742 }
743
744 int runstate_is_running(void)
745 {
746 return runstate_check(RUN_STATE_RUNNING);
747 }
748
749 bool runstate_needs_reset(void)
750 {
751 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
752 runstate_check(RUN_STATE_SHUTDOWN);
753 }
754
755 StatusInfo *qmp_query_status(Error **errp)
756 {
757 StatusInfo *info = g_malloc0(sizeof(*info));
758
759 info->running = runstate_is_running();
760 info->singlestep = singlestep;
761 info->status = current_run_state;
762
763 return info;
764 }
765
766 bool qemu_vmstop_requested(RunState *r)
767 {
768 qemu_mutex_lock(&vmstop_lock);
769 *r = vmstop_requested;
770 vmstop_requested = RUN_STATE__MAX;
771 qemu_mutex_unlock(&vmstop_lock);
772 return *r < RUN_STATE__MAX;
773 }
774
775 void qemu_system_vmstop_request_prepare(void)
776 {
777 qemu_mutex_lock(&vmstop_lock);
778 }
779
780 void qemu_system_vmstop_request(RunState state)
781 {
782 vmstop_requested = state;
783 qemu_mutex_unlock(&vmstop_lock);
784 qemu_notify_event();
785 }
786
787 /***********************************************************/
788 /* real time host monotonic timer */
789
790 static time_t qemu_time(void)
791 {
792 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
793 }
794
795 /***********************************************************/
796 /* host time/date access */
797 void qemu_get_timedate(struct tm *tm, int offset)
798 {
799 time_t ti = qemu_time();
800
801 ti += offset;
802 if (rtc_date_offset == -1) {
803 if (rtc_utc)
804 gmtime_r(&ti, tm);
805 else
806 localtime_r(&ti, tm);
807 } else {
808 ti -= rtc_date_offset;
809 gmtime_r(&ti, tm);
810 }
811 }
812
813 int qemu_timedate_diff(struct tm *tm)
814 {
815 time_t seconds;
816
817 if (rtc_date_offset == -1)
818 if (rtc_utc)
819 seconds = mktimegm(tm);
820 else {
821 struct tm tmp = *tm;
822 tmp.tm_isdst = -1; /* use timezone to figure it out */
823 seconds = mktime(&tmp);
824 }
825 else
826 seconds = mktimegm(tm) + rtc_date_offset;
827
828 return seconds - qemu_time();
829 }
830
831 static void configure_rtc_date_offset(const char *startdate, int legacy)
832 {
833 time_t rtc_start_date;
834 struct tm tm;
835
836 if (!strcmp(startdate, "now") && legacy) {
837 rtc_date_offset = -1;
838 } else {
839 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
840 &tm.tm_year,
841 &tm.tm_mon,
842 &tm.tm_mday,
843 &tm.tm_hour,
844 &tm.tm_min,
845 &tm.tm_sec) == 6) {
846 /* OK */
847 } else if (sscanf(startdate, "%d-%d-%d",
848 &tm.tm_year,
849 &tm.tm_mon,
850 &tm.tm_mday) == 3) {
851 tm.tm_hour = 0;
852 tm.tm_min = 0;
853 tm.tm_sec = 0;
854 } else {
855 goto date_fail;
856 }
857 tm.tm_year -= 1900;
858 tm.tm_mon--;
859 rtc_start_date = mktimegm(&tm);
860 if (rtc_start_date == -1) {
861 date_fail:
862 error_report("invalid date format");
863 error_printf("valid formats: "
864 "'2006-06-17T16:01:21' or '2006-06-17'\n");
865 exit(1);
866 }
867 rtc_date_offset = qemu_time() - rtc_start_date;
868 }
869 }
870
871 static void configure_rtc(QemuOpts *opts)
872 {
873 const char *value;
874
875 value = qemu_opt_get(opts, "base");
876 if (value) {
877 if (!strcmp(value, "utc")) {
878 rtc_utc = 1;
879 } else if (!strcmp(value, "localtime")) {
880 Error *blocker = NULL;
881 rtc_utc = 0;
882 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
883 "-rtc base=localtime");
884 replay_add_blocker(blocker);
885 } else {
886 configure_rtc_date_offset(value, 0);
887 }
888 }
889 value = qemu_opt_get(opts, "clock");
890 if (value) {
891 if (!strcmp(value, "host")) {
892 rtc_clock = QEMU_CLOCK_HOST;
893 } else if (!strcmp(value, "rt")) {
894 rtc_clock = QEMU_CLOCK_REALTIME;
895 } else if (!strcmp(value, "vm")) {
896 rtc_clock = QEMU_CLOCK_VIRTUAL;
897 } else {
898 error_report("invalid option value '%s'", value);
899 exit(1);
900 }
901 }
902 value = qemu_opt_get(opts, "driftfix");
903 if (value) {
904 if (!strcmp(value, "slew")) {
905 static GlobalProperty slew_lost_ticks = {
906 .driver = "mc146818rtc",
907 .property = "lost_tick_policy",
908 .value = "slew",
909 };
910
911 qdev_prop_register_global(&slew_lost_ticks);
912 } else if (!strcmp(value, "none")) {
913 /* discard is default */
914 } else {
915 error_report("invalid option value '%s'", value);
916 exit(1);
917 }
918 }
919 }
920
921 /***********************************************************/
922 /* Bluetooth support */
923 static int nb_hcis;
924 static int cur_hci;
925 static struct HCIInfo *hci_table[MAX_NICS];
926
927 struct HCIInfo *qemu_next_hci(void)
928 {
929 if (cur_hci == nb_hcis)
930 return &null_hci;
931
932 return hci_table[cur_hci++];
933 }
934
935 static int bt_hci_parse(const char *str)
936 {
937 struct HCIInfo *hci;
938 bdaddr_t bdaddr;
939
940 if (nb_hcis >= MAX_NICS) {
941 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
942 return -1;
943 }
944
945 hci = hci_init(str);
946 if (!hci)
947 return -1;
948
949 bdaddr.b[0] = 0x52;
950 bdaddr.b[1] = 0x54;
951 bdaddr.b[2] = 0x00;
952 bdaddr.b[3] = 0x12;
953 bdaddr.b[4] = 0x34;
954 bdaddr.b[5] = 0x56 + nb_hcis;
955 hci->bdaddr_set(hci, bdaddr.b);
956
957 hci_table[nb_hcis++] = hci;
958
959 return 0;
960 }
961
962 static void bt_vhci_add(int vlan_id)
963 {
964 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
965
966 if (!vlan->slave)
967 warn_report("adding a VHCI to an empty scatternet %i",
968 vlan_id);
969
970 bt_vhci_init(bt_new_hci(vlan));
971 }
972
973 static struct bt_device_s *bt_device_add(const char *opt)
974 {
975 struct bt_scatternet_s *vlan;
976 int vlan_id = 0;
977 char *endp = strstr(opt, ",vlan=");
978 int len = (endp ? endp - opt : strlen(opt)) + 1;
979 char devname[10];
980
981 pstrcpy(devname, MIN(sizeof(devname), len), opt);
982
983 if (endp) {
984 vlan_id = strtol(endp + 6, &endp, 0);
985 if (*endp) {
986 error_report("unrecognised bluetooth vlan Id");
987 return 0;
988 }
989 }
990
991 vlan = qemu_find_bt_vlan(vlan_id);
992
993 if (!vlan->slave)
994 warn_report("adding a slave device to an empty scatternet %i",
995 vlan_id);
996
997 if (!strcmp(devname, "keyboard"))
998 return bt_keyboard_init(vlan);
999
1000 error_report("unsupported bluetooth device '%s'", devname);
1001 return 0;
1002 }
1003
1004 static int bt_parse(const char *opt)
1005 {
1006 const char *endp, *p;
1007 int vlan;
1008
1009 if (strstart(opt, "hci", &endp)) {
1010 if (!*endp || *endp == ',') {
1011 if (*endp)
1012 if (!strstart(endp, ",vlan=", 0))
1013 opt = endp + 1;
1014
1015 return bt_hci_parse(opt);
1016 }
1017 } else if (strstart(opt, "vhci", &endp)) {
1018 if (!*endp || *endp == ',') {
1019 if (*endp) {
1020 if (strstart(endp, ",vlan=", &p)) {
1021 vlan = strtol(p, (char **) &endp, 0);
1022 if (*endp) {
1023 error_report("bad scatternet '%s'", p);
1024 return 1;
1025 }
1026 } else {
1027 error_report("bad parameter '%s'", endp + 1);
1028 return 1;
1029 }
1030 } else
1031 vlan = 0;
1032
1033 bt_vhci_add(vlan);
1034 return 0;
1035 }
1036 } else if (strstart(opt, "device:", &endp))
1037 return !bt_device_add(endp);
1038
1039 error_report("bad bluetooth parameter '%s'", opt);
1040 return 1;
1041 }
1042
1043 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1044 {
1045 if (qemu_opt_get_bool(opts, "enable", false)) {
1046 #ifdef CONFIG_SECCOMP
1047 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1048 | QEMU_SECCOMP_SET_OBSOLETE;
1049 const char *value = NULL;
1050
1051 value = qemu_opt_get(opts, "obsolete");
1052 if (value) {
1053 if (g_str_equal(value, "allow")) {
1054 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1055 } else if (g_str_equal(value, "deny")) {
1056 /* this is the default option, this if is here
1057 * to provide a little bit of consistency for
1058 * the command line */
1059 } else {
1060 error_report("invalid argument for obsolete");
1061 return -1;
1062 }
1063 }
1064
1065 value = qemu_opt_get(opts, "elevateprivileges");
1066 if (value) {
1067 if (g_str_equal(value, "deny")) {
1068 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1069 } else if (g_str_equal(value, "children")) {
1070 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1071
1072 /* calling prctl directly because we're
1073 * not sure if host has CAP_SYS_ADMIN set*/
1074 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1075 error_report("failed to set no_new_privs "
1076 "aborting");
1077 return -1;
1078 }
1079 } else if (g_str_equal(value, "allow")) {
1080 /* default value */
1081 } else {
1082 error_report("invalid argument for elevateprivileges");
1083 return -1;
1084 }
1085 }
1086
1087 value = qemu_opt_get(opts, "spawn");
1088 if (value) {
1089 if (g_str_equal(value, "deny")) {
1090 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1091 } else if (g_str_equal(value, "allow")) {
1092 /* default value */
1093 } else {
1094 error_report("invalid argument for spawn");
1095 return -1;
1096 }
1097 }
1098
1099 value = qemu_opt_get(opts, "resourcecontrol");
1100 if (value) {
1101 if (g_str_equal(value, "deny")) {
1102 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1103 } else if (g_str_equal(value, "allow")) {
1104 /* default value */
1105 } else {
1106 error_report("invalid argument for resourcecontrol");
1107 return -1;
1108 }
1109 }
1110
1111 if (seccomp_start(seccomp_opts) < 0) {
1112 error_report("failed to install seccomp syscall filter "
1113 "in the kernel");
1114 return -1;
1115 }
1116 #else
1117 error_report("seccomp support is disabled");
1118 return -1;
1119 #endif
1120 }
1121
1122 return 0;
1123 }
1124
1125 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1126 {
1127 const char *proc_name;
1128
1129 if (qemu_opt_get(opts, "debug-threads")) {
1130 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1131 }
1132 qemu_name = qemu_opt_get(opts, "guest");
1133
1134 proc_name = qemu_opt_get(opts, "process");
1135 if (proc_name) {
1136 os_set_proc_name(proc_name);
1137 }
1138
1139 return 0;
1140 }
1141
1142 bool defaults_enabled(void)
1143 {
1144 return has_defaults;
1145 }
1146
1147 #ifndef _WIN32
1148 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1149 {
1150 int fd, dupfd, flags;
1151 int64_t fdset_id;
1152 const char *fd_opaque = NULL;
1153 AddfdInfo *fdinfo;
1154
1155 fd = qemu_opt_get_number(opts, "fd", -1);
1156 fdset_id = qemu_opt_get_number(opts, "set", -1);
1157 fd_opaque = qemu_opt_get(opts, "opaque");
1158
1159 if (fd < 0) {
1160 error_report("fd option is required and must be non-negative");
1161 return -1;
1162 }
1163
1164 if (fd <= STDERR_FILENO) {
1165 error_report("fd cannot be a standard I/O stream");
1166 return -1;
1167 }
1168
1169 /*
1170 * All fds inherited across exec() necessarily have FD_CLOEXEC
1171 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1172 */
1173 flags = fcntl(fd, F_GETFD);
1174 if (flags == -1 || (flags & FD_CLOEXEC)) {
1175 error_report("fd is not valid or already in use");
1176 return -1;
1177 }
1178
1179 if (fdset_id < 0) {
1180 error_report("set option is required and must be non-negative");
1181 return -1;
1182 }
1183
1184 #ifdef F_DUPFD_CLOEXEC
1185 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1186 #else
1187 dupfd = dup(fd);
1188 if (dupfd != -1) {
1189 qemu_set_cloexec(dupfd);
1190 }
1191 #endif
1192 if (dupfd == -1) {
1193 error_report("error duplicating fd: %s", strerror(errno));
1194 return -1;
1195 }
1196
1197 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1198 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1199 &error_abort);
1200 g_free(fdinfo);
1201
1202 return 0;
1203 }
1204
1205 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1206 {
1207 int fd;
1208
1209 fd = qemu_opt_get_number(opts, "fd", -1);
1210 close(fd);
1211
1212 return 0;
1213 }
1214 #endif
1215
1216 /***********************************************************/
1217 /* QEMU Block devices */
1218
1219 #define HD_OPTS "media=disk"
1220 #define CDROM_OPTS "media=cdrom"
1221 #define FD_OPTS ""
1222 #define PFLASH_OPTS ""
1223 #define MTD_OPTS ""
1224 #define SD_OPTS ""
1225
1226 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1227 {
1228 BlockInterfaceType *block_default_type = opaque;
1229
1230 return drive_new(opts, *block_default_type) == NULL;
1231 }
1232
1233 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1234 {
1235 if (qemu_opt_get(opts, "snapshot") == NULL) {
1236 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1237 }
1238 return 0;
1239 }
1240
1241 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1242 int index, const char *optstr)
1243 {
1244 QemuOpts *opts;
1245 DriveInfo *dinfo;
1246
1247 if (!enable || drive_get_by_index(type, index)) {
1248 return;
1249 }
1250
1251 opts = drive_add(type, index, NULL, optstr);
1252 if (snapshot) {
1253 drive_enable_snapshot(NULL, opts, NULL);
1254 }
1255
1256 dinfo = drive_new(opts, type);
1257 if (!dinfo) {
1258 exit(1);
1259 }
1260 dinfo->is_default = true;
1261
1262 }
1263
1264 static QemuOptsList qemu_smp_opts = {
1265 .name = "smp-opts",
1266 .implied_opt_name = "cpus",
1267 .merge_lists = true,
1268 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1269 .desc = {
1270 {
1271 .name = "cpus",
1272 .type = QEMU_OPT_NUMBER,
1273 }, {
1274 .name = "sockets",
1275 .type = QEMU_OPT_NUMBER,
1276 }, {
1277 .name = "cores",
1278 .type = QEMU_OPT_NUMBER,
1279 }, {
1280 .name = "threads",
1281 .type = QEMU_OPT_NUMBER,
1282 }, {
1283 .name = "maxcpus",
1284 .type = QEMU_OPT_NUMBER,
1285 },
1286 { /*End of list */ }
1287 },
1288 };
1289
1290 static void smp_parse(QemuOpts *opts)
1291 {
1292 if (opts) {
1293 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1294 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1295 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1296 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1297
1298 /* compute missing values, prefer sockets over cores over threads */
1299 if (cpus == 0 || sockets == 0) {
1300 sockets = sockets > 0 ? sockets : 1;
1301 cores = cores > 0 ? cores : 1;
1302 threads = threads > 0 ? threads : 1;
1303 if (cpus == 0) {
1304 cpus = cores * threads * sockets;
1305 }
1306 } else if (cores == 0) {
1307 threads = threads > 0 ? threads : 1;
1308 cores = cpus / (sockets * threads);
1309 cores = cores > 0 ? cores : 1;
1310 } else if (threads == 0) {
1311 threads = cpus / (cores * sockets);
1312 threads = threads > 0 ? threads : 1;
1313 } else if (sockets * cores * threads < cpus) {
1314 error_report("cpu topology: "
1315 "sockets (%u) * cores (%u) * threads (%u) < "
1316 "smp_cpus (%u)",
1317 sockets, cores, threads, cpus);
1318 exit(1);
1319 }
1320
1321 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1322
1323 if (max_cpus < cpus) {
1324 error_report("maxcpus must be equal to or greater than smp");
1325 exit(1);
1326 }
1327
1328 if (sockets * cores * threads > max_cpus) {
1329 error_report("cpu topology: "
1330 "sockets (%u) * cores (%u) * threads (%u) > "
1331 "maxcpus (%u)",
1332 sockets, cores, threads, max_cpus);
1333 exit(1);
1334 }
1335
1336 smp_cpus = cpus;
1337 smp_cores = cores;
1338 smp_threads = threads;
1339 }
1340
1341 if (smp_cpus > 1) {
1342 Error *blocker = NULL;
1343 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1344 replay_add_blocker(blocker);
1345 }
1346 }
1347
1348 static void realtime_init(void)
1349 {
1350 if (enable_mlock) {
1351 if (os_mlock() < 0) {
1352 error_report("locking memory failed");
1353 exit(1);
1354 }
1355 }
1356 }
1357
1358
1359 static void configure_msg(QemuOpts *opts)
1360 {
1361 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1362 }
1363
1364 /***********************************************************/
1365 /* Semihosting */
1366
1367 typedef struct SemihostingConfig {
1368 bool enabled;
1369 SemihostingTarget target;
1370 const char **argv;
1371 int argc;
1372 const char *cmdline; /* concatenated argv */
1373 } SemihostingConfig;
1374
1375 static SemihostingConfig semihosting;
1376
1377 bool semihosting_enabled(void)
1378 {
1379 return semihosting.enabled;
1380 }
1381
1382 SemihostingTarget semihosting_get_target(void)
1383 {
1384 return semihosting.target;
1385 }
1386
1387 const char *semihosting_get_arg(int i)
1388 {
1389 if (i >= semihosting.argc) {
1390 return NULL;
1391 }
1392 return semihosting.argv[i];
1393 }
1394
1395 int semihosting_get_argc(void)
1396 {
1397 return semihosting.argc;
1398 }
1399
1400 const char *semihosting_get_cmdline(void)
1401 {
1402 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1403 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1404 }
1405 return semihosting.cmdline;
1406 }
1407
1408 static int add_semihosting_arg(void *opaque,
1409 const char *name, const char *val,
1410 Error **errp)
1411 {
1412 SemihostingConfig *s = opaque;
1413 if (strcmp(name, "arg") == 0) {
1414 s->argc++;
1415 /* one extra element as g_strjoinv() expects NULL-terminated array */
1416 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1417 s->argv[s->argc - 1] = val;
1418 s->argv[s->argc] = NULL;
1419 }
1420 return 0;
1421 }
1422
1423 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1424 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1425 {
1426 char *cmd_token;
1427
1428 /* argv[0] */
1429 add_semihosting_arg(&semihosting, "arg", file, NULL);
1430
1431 /* split -append and initialize argv[1..n] */
1432 cmd_token = strtok(g_strdup(cmd), " ");
1433 while (cmd_token) {
1434 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1435 cmd_token = strtok(NULL, " ");
1436 }
1437 }
1438
1439 /* Now we still need this for compatibility with XEN. */
1440 bool has_igd_gfx_passthru;
1441 static void igd_gfx_passthru(void)
1442 {
1443 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1444 }
1445
1446 /***********************************************************/
1447 /* USB devices */
1448
1449 static int usb_device_add(const char *devname)
1450 {
1451 USBDevice *dev = NULL;
1452
1453 if (!machine_usb(current_machine)) {
1454 return -1;
1455 }
1456
1457 dev = usbdevice_create(devname);
1458 if (!dev)
1459 return -1;
1460
1461 return 0;
1462 }
1463
1464 static int usb_parse(const char *cmdline)
1465 {
1466 int r;
1467 r = usb_device_add(cmdline);
1468 if (r < 0) {
1469 error_report("could not add USB device '%s'", cmdline);
1470 }
1471 return r;
1472 }
1473
1474 /***********************************************************/
1475 /* machine registration */
1476
1477 MachineState *current_machine;
1478
1479 static MachineClass *find_machine(const char *name)
1480 {
1481 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1482 MachineClass *mc = NULL;
1483
1484 for (el = machines; el; el = el->next) {
1485 MachineClass *temp = el->data;
1486
1487 if (!strcmp(temp->name, name)) {
1488 mc = temp;
1489 break;
1490 }
1491 if (temp->alias &&
1492 !strcmp(temp->alias, name)) {
1493 mc = temp;
1494 break;
1495 }
1496 }
1497
1498 g_slist_free(machines);
1499 return mc;
1500 }
1501
1502 MachineClass *find_default_machine(void)
1503 {
1504 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1505 MachineClass *mc = NULL;
1506
1507 for (el = machines; el; el = el->next) {
1508 MachineClass *temp = el->data;
1509
1510 if (temp->is_default) {
1511 mc = temp;
1512 break;
1513 }
1514 }
1515
1516 g_slist_free(machines);
1517 return mc;
1518 }
1519
1520 MachineInfoList *qmp_query_machines(Error **errp)
1521 {
1522 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1523 MachineInfoList *mach_list = NULL;
1524
1525 for (el = machines; el; el = el->next) {
1526 MachineClass *mc = el->data;
1527 MachineInfoList *entry;
1528 MachineInfo *info;
1529
1530 info = g_malloc0(sizeof(*info));
1531 if (mc->is_default) {
1532 info->has_is_default = true;
1533 info->is_default = true;
1534 }
1535
1536 if (mc->alias) {
1537 info->has_alias = true;
1538 info->alias = g_strdup(mc->alias);
1539 }
1540
1541 info->name = g_strdup(mc->name);
1542 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1543 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1544
1545 entry = g_malloc0(sizeof(*entry));
1546 entry->value = info;
1547 entry->next = mach_list;
1548 mach_list = entry;
1549 }
1550
1551 g_slist_free(machines);
1552 return mach_list;
1553 }
1554
1555 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1556 {
1557 ObjectProperty *prop;
1558 ObjectPropertyIterator iter;
1559
1560 if (!qemu_opt_has_help_opt(opts)) {
1561 return 0;
1562 }
1563
1564 object_property_iter_init(&iter, OBJECT(machine));
1565 while ((prop = object_property_iter_next(&iter))) {
1566 if (!prop->set) {
1567 continue;
1568 }
1569
1570 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1571 prop->name, prop->type);
1572 if (prop->description) {
1573 error_printf(" (%s)\n", prop->description);
1574 } else {
1575 error_printf("\n");
1576 }
1577 }
1578
1579 return 1;
1580 }
1581
1582 /***********************************************************/
1583 /* main execution loop */
1584
1585 struct vm_change_state_entry {
1586 VMChangeStateHandler *cb;
1587 void *opaque;
1588 QLIST_ENTRY (vm_change_state_entry) entries;
1589 };
1590
1591 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1592
1593 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1594 void *opaque)
1595 {
1596 VMChangeStateEntry *e;
1597
1598 e = g_malloc0(sizeof (*e));
1599
1600 e->cb = cb;
1601 e->opaque = opaque;
1602 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1603 return e;
1604 }
1605
1606 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1607 {
1608 QLIST_REMOVE (e, entries);
1609 g_free (e);
1610 }
1611
1612 void vm_state_notify(int running, RunState state)
1613 {
1614 VMChangeStateEntry *e, *next;
1615
1616 trace_vm_state_notify(running, state);
1617
1618 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1619 e->cb(e->opaque, running, state);
1620 }
1621 }
1622
1623 static ShutdownCause reset_requested;
1624 static ShutdownCause shutdown_requested;
1625 static int shutdown_signal;
1626 static pid_t shutdown_pid;
1627 static int powerdown_requested;
1628 static int debug_requested;
1629 static int suspend_requested;
1630 static WakeupReason wakeup_reason;
1631 static NotifierList powerdown_notifiers =
1632 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1633 static NotifierList suspend_notifiers =
1634 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1635 static NotifierList wakeup_notifiers =
1636 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1637 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1638
1639 ShutdownCause qemu_shutdown_requested_get(void)
1640 {
1641 return shutdown_requested;
1642 }
1643
1644 ShutdownCause qemu_reset_requested_get(void)
1645 {
1646 return reset_requested;
1647 }
1648
1649 static int qemu_shutdown_requested(void)
1650 {
1651 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1652 }
1653
1654 static void qemu_kill_report(void)
1655 {
1656 if (!qtest_driver() && shutdown_signal) {
1657 if (shutdown_pid == 0) {
1658 /* This happens for eg ^C at the terminal, so it's worth
1659 * avoiding printing an odd message in that case.
1660 */
1661 error_report("terminating on signal %d", shutdown_signal);
1662 } else {
1663 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1664
1665 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1666 shutdown_signal, shutdown_pid,
1667 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1668 g_free(shutdown_cmd);
1669 }
1670 shutdown_signal = 0;
1671 }
1672 }
1673
1674 static ShutdownCause qemu_reset_requested(void)
1675 {
1676 ShutdownCause r = reset_requested;
1677
1678 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1679 reset_requested = SHUTDOWN_CAUSE_NONE;
1680 return r;
1681 }
1682 return SHUTDOWN_CAUSE_NONE;
1683 }
1684
1685 static int qemu_suspend_requested(void)
1686 {
1687 int r = suspend_requested;
1688 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1689 suspend_requested = 0;
1690 return r;
1691 }
1692 return false;
1693 }
1694
1695 static WakeupReason qemu_wakeup_requested(void)
1696 {
1697 return wakeup_reason;
1698 }
1699
1700 static int qemu_powerdown_requested(void)
1701 {
1702 int r = powerdown_requested;
1703 powerdown_requested = 0;
1704 return r;
1705 }
1706
1707 static int qemu_debug_requested(void)
1708 {
1709 int r = debug_requested;
1710 debug_requested = 0;
1711 return r;
1712 }
1713
1714 /*
1715 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1716 */
1717 void qemu_system_reset(ShutdownCause reason)
1718 {
1719 MachineClass *mc;
1720
1721 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1722
1723 cpu_synchronize_all_states();
1724
1725 if (mc && mc->reset) {
1726 mc->reset();
1727 } else {
1728 qemu_devices_reset();
1729 }
1730 if (reason) {
1731 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1732 &error_abort);
1733 }
1734 cpu_synchronize_all_post_reset();
1735 }
1736
1737 void qemu_system_guest_panicked(GuestPanicInformation *info)
1738 {
1739 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1740
1741 if (current_cpu) {
1742 current_cpu->crash_occurred = true;
1743 }
1744 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1745 !!info, info, &error_abort);
1746 vm_stop(RUN_STATE_GUEST_PANICKED);
1747 if (!no_shutdown) {
1748 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1749 !!info, info, &error_abort);
1750 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1751 }
1752
1753 if (info) {
1754 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1755 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1756 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1757 info->u.hyper_v.arg1,
1758 info->u.hyper_v.arg2,
1759 info->u.hyper_v.arg3,
1760 info->u.hyper_v.arg4,
1761 info->u.hyper_v.arg5);
1762 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1763 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1764 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1765 info->u.s390.core,
1766 S390CrashReason_str(info->u.s390.reason),
1767 info->u.s390.psw_mask,
1768 info->u.s390.psw_addr);
1769 }
1770 qapi_free_GuestPanicInformation(info);
1771 }
1772 }
1773
1774 void qemu_system_reset_request(ShutdownCause reason)
1775 {
1776 if (no_reboot) {
1777 shutdown_requested = reason;
1778 } else {
1779 reset_requested = reason;
1780 }
1781 cpu_stop_current();
1782 qemu_notify_event();
1783 }
1784
1785 static void qemu_system_suspend(void)
1786 {
1787 pause_all_vcpus();
1788 notifier_list_notify(&suspend_notifiers, NULL);
1789 runstate_set(RUN_STATE_SUSPENDED);
1790 qapi_event_send_suspend(&error_abort);
1791 }
1792
1793 void qemu_system_suspend_request(void)
1794 {
1795 if (runstate_check(RUN_STATE_SUSPENDED)) {
1796 return;
1797 }
1798 suspend_requested = 1;
1799 cpu_stop_current();
1800 qemu_notify_event();
1801 }
1802
1803 void qemu_register_suspend_notifier(Notifier *notifier)
1804 {
1805 notifier_list_add(&suspend_notifiers, notifier);
1806 }
1807
1808 void qemu_system_wakeup_request(WakeupReason reason)
1809 {
1810 trace_system_wakeup_request(reason);
1811
1812 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1813 return;
1814 }
1815 if (!(wakeup_reason_mask & (1 << reason))) {
1816 return;
1817 }
1818 runstate_set(RUN_STATE_RUNNING);
1819 wakeup_reason = reason;
1820 qemu_notify_event();
1821 }
1822
1823 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1824 {
1825 if (enabled) {
1826 wakeup_reason_mask |= (1 << reason);
1827 } else {
1828 wakeup_reason_mask &= ~(1 << reason);
1829 }
1830 }
1831
1832 void qemu_register_wakeup_notifier(Notifier *notifier)
1833 {
1834 notifier_list_add(&wakeup_notifiers, notifier);
1835 }
1836
1837 void qemu_system_killed(int signal, pid_t pid)
1838 {
1839 shutdown_signal = signal;
1840 shutdown_pid = pid;
1841 no_shutdown = 0;
1842
1843 /* Cannot call qemu_system_shutdown_request directly because
1844 * we are in a signal handler.
1845 */
1846 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1847 qemu_notify_event();
1848 }
1849
1850 void qemu_system_shutdown_request(ShutdownCause reason)
1851 {
1852 trace_qemu_system_shutdown_request(reason);
1853 replay_shutdown_request(reason);
1854 shutdown_requested = reason;
1855 qemu_notify_event();
1856 }
1857
1858 static void qemu_system_powerdown(void)
1859 {
1860 qapi_event_send_powerdown(&error_abort);
1861 notifier_list_notify(&powerdown_notifiers, NULL);
1862 }
1863
1864 void qemu_system_powerdown_request(void)
1865 {
1866 trace_qemu_system_powerdown_request();
1867 powerdown_requested = 1;
1868 qemu_notify_event();
1869 }
1870
1871 void qemu_register_powerdown_notifier(Notifier *notifier)
1872 {
1873 notifier_list_add(&powerdown_notifiers, notifier);
1874 }
1875
1876 void qemu_system_debug_request(void)
1877 {
1878 debug_requested = 1;
1879 qemu_notify_event();
1880 }
1881
1882 static bool main_loop_should_exit(void)
1883 {
1884 RunState r;
1885 ShutdownCause request;
1886
1887 if (qemu_debug_requested()) {
1888 vm_stop(RUN_STATE_DEBUG);
1889 }
1890 if (qemu_suspend_requested()) {
1891 qemu_system_suspend();
1892 }
1893 request = qemu_shutdown_requested();
1894 if (request) {
1895 qemu_kill_report();
1896 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1897 &error_abort);
1898 if (no_shutdown) {
1899 vm_stop(RUN_STATE_SHUTDOWN);
1900 } else {
1901 return true;
1902 }
1903 }
1904 request = qemu_reset_requested();
1905 if (request) {
1906 pause_all_vcpus();
1907 qemu_system_reset(request);
1908 resume_all_vcpus();
1909 if (!runstate_check(RUN_STATE_RUNNING) &&
1910 !runstate_check(RUN_STATE_INMIGRATE)) {
1911 runstate_set(RUN_STATE_PRELAUNCH);
1912 }
1913 }
1914 if (qemu_wakeup_requested()) {
1915 pause_all_vcpus();
1916 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1917 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1918 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1919 resume_all_vcpus();
1920 qapi_event_send_wakeup(&error_abort);
1921 }
1922 if (qemu_powerdown_requested()) {
1923 qemu_system_powerdown();
1924 }
1925 if (qemu_vmstop_requested(&r)) {
1926 vm_stop(r);
1927 }
1928 return false;
1929 }
1930
1931 static void main_loop(void)
1932 {
1933 #ifdef CONFIG_PROFILER
1934 int64_t ti;
1935 #endif
1936 do {
1937 #ifdef CONFIG_PROFILER
1938 ti = profile_getclock();
1939 #endif
1940 main_loop_wait(false);
1941 #ifdef CONFIG_PROFILER
1942 dev_time += profile_getclock() - ti;
1943 #endif
1944 } while (!main_loop_should_exit());
1945 }
1946
1947 static void version(void)
1948 {
1949 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1950 QEMU_COPYRIGHT "\n");
1951 }
1952
1953 static void help(int exitcode)
1954 {
1955 version();
1956 printf("usage: %s [options] [disk_image]\n\n"
1957 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1958 error_get_progname());
1959
1960 #define QEMU_OPTIONS_GENERATE_HELP
1961 #include "qemu-options-wrapper.h"
1962
1963 printf("\nDuring emulation, the following keys are useful:\n"
1964 "ctrl-alt-f toggle full screen\n"
1965 "ctrl-alt-n switch to virtual console 'n'\n"
1966 "ctrl-alt toggle mouse and keyboard grab\n"
1967 "\n"
1968 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1969 "\n"
1970 QEMU_HELP_BOTTOM "\n");
1971
1972 exit(exitcode);
1973 }
1974
1975 #define HAS_ARG 0x0001
1976
1977 typedef struct QEMUOption {
1978 const char *name;
1979 int flags;
1980 int index;
1981 uint32_t arch_mask;
1982 } QEMUOption;
1983
1984 static const QEMUOption qemu_options[] = {
1985 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1986 #define QEMU_OPTIONS_GENERATE_OPTIONS
1987 #include "qemu-options-wrapper.h"
1988 { NULL },
1989 };
1990
1991 typedef struct VGAInterfaceInfo {
1992 const char *opt_name; /* option name */
1993 const char *name; /* human-readable name */
1994 /* Class names indicating that support is available.
1995 * If no class is specified, the interface is always available */
1996 const char *class_names[2];
1997 } VGAInterfaceInfo;
1998
1999 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2000 [VGA_NONE] = {
2001 .opt_name = "none",
2002 },
2003 [VGA_STD] = {
2004 .opt_name = "std",
2005 .name = "standard VGA",
2006 .class_names = { "VGA", "isa-vga" },
2007 },
2008 [VGA_CIRRUS] = {
2009 .opt_name = "cirrus",
2010 .name = "Cirrus VGA",
2011 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2012 },
2013 [VGA_VMWARE] = {
2014 .opt_name = "vmware",
2015 .name = "VMWare SVGA",
2016 .class_names = { "vmware-svga" },
2017 },
2018 [VGA_VIRTIO] = {
2019 .opt_name = "virtio",
2020 .name = "Virtio VGA",
2021 .class_names = { "virtio-vga" },
2022 },
2023 [VGA_QXL] = {
2024 .opt_name = "qxl",
2025 .name = "QXL VGA",
2026 .class_names = { "qxl-vga" },
2027 },
2028 [VGA_TCX] = {
2029 .opt_name = "tcx",
2030 .name = "TCX framebuffer",
2031 .class_names = { "SUNW,tcx" },
2032 },
2033 [VGA_CG3] = {
2034 .opt_name = "cg3",
2035 .name = "CG3 framebuffer",
2036 .class_names = { "cgthree" },
2037 },
2038 [VGA_XENFB] = {
2039 .opt_name = "xenfb",
2040 },
2041 };
2042
2043 static bool vga_interface_available(VGAInterfaceType t)
2044 {
2045 VGAInterfaceInfo *ti = &vga_interfaces[t];
2046
2047 assert(t < VGA_TYPE_MAX);
2048 return !ti->class_names[0] ||
2049 object_class_by_name(ti->class_names[0]) ||
2050 object_class_by_name(ti->class_names[1]);
2051 }
2052
2053 static void select_vgahw(const char *p)
2054 {
2055 const char *opts;
2056 int t;
2057
2058 assert(vga_interface_type == VGA_NONE);
2059 for (t = 0; t < VGA_TYPE_MAX; t++) {
2060 VGAInterfaceInfo *ti = &vga_interfaces[t];
2061 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2062 if (!vga_interface_available(t)) {
2063 error_report("%s not available", ti->name);
2064 exit(1);
2065 }
2066 vga_interface_type = t;
2067 break;
2068 }
2069 }
2070 if (t == VGA_TYPE_MAX) {
2071 invalid_vga:
2072 error_report("unknown vga type: %s", p);
2073 exit(1);
2074 }
2075 while (*opts) {
2076 const char *nextopt;
2077
2078 if (strstart(opts, ",retrace=", &nextopt)) {
2079 opts = nextopt;
2080 if (strstart(opts, "dumb", &nextopt))
2081 vga_retrace_method = VGA_RETRACE_DUMB;
2082 else if (strstart(opts, "precise", &nextopt))
2083 vga_retrace_method = VGA_RETRACE_PRECISE;
2084 else goto invalid_vga;
2085 } else goto invalid_vga;
2086 opts = nextopt;
2087 }
2088 }
2089
2090 static void parse_display(const char *p)
2091 {
2092 const char *opts;
2093
2094 if (strstart(p, "sdl", &opts)) {
2095 dpy.type = DISPLAY_TYPE_SDL;
2096 while (*opts) {
2097 const char *nextopt;
2098
2099 if (strstart(opts, ",frame=", &nextopt)) {
2100 g_printerr("The frame= sdl option is deprecated, and will be\n"
2101 "removed in a future release.\n");
2102 opts = nextopt;
2103 if (strstart(opts, "on", &nextopt)) {
2104 no_frame = 0;
2105 } else if (strstart(opts, "off", &nextopt)) {
2106 no_frame = 1;
2107 } else {
2108 goto invalid_sdl_args;
2109 }
2110 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2111 opts = nextopt;
2112 if (strstart(opts, "on", &nextopt)) {
2113 alt_grab = 1;
2114 } else if (strstart(opts, "off", &nextopt)) {
2115 alt_grab = 0;
2116 } else {
2117 goto invalid_sdl_args;
2118 }
2119 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2120 opts = nextopt;
2121 if (strstart(opts, "on", &nextopt)) {
2122 ctrl_grab = 1;
2123 } else if (strstart(opts, "off", &nextopt)) {
2124 ctrl_grab = 0;
2125 } else {
2126 goto invalid_sdl_args;
2127 }
2128 } else if (strstart(opts, ",window_close=", &nextopt)) {
2129 opts = nextopt;
2130 dpy.has_window_close = true;
2131 if (strstart(opts, "on", &nextopt)) {
2132 dpy.window_close = true;
2133 } else if (strstart(opts, "off", &nextopt)) {
2134 dpy.window_close = false;
2135 } else {
2136 goto invalid_sdl_args;
2137 }
2138 } else if (strstart(opts, ",gl=", &nextopt)) {
2139 opts = nextopt;
2140 dpy.has_gl = true;
2141 if (strstart(opts, "on", &nextopt)) {
2142 dpy.gl = true;
2143 } else if (strstart(opts, "off", &nextopt)) {
2144 dpy.gl = false;
2145 } else {
2146 goto invalid_sdl_args;
2147 }
2148 } else {
2149 invalid_sdl_args:
2150 error_report("invalid SDL option string");
2151 exit(1);
2152 }
2153 opts = nextopt;
2154 }
2155 } else if (strstart(p, "vnc", &opts)) {
2156 if (*opts == '=') {
2157 vnc_parse(opts + 1, &error_fatal);
2158 } else {
2159 error_report("VNC requires a display argument vnc=<display>");
2160 exit(1);
2161 }
2162 } else if (strstart(p, "egl-headless", &opts)) {
2163 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2164 } else if (strstart(p, "curses", &opts)) {
2165 dpy.type = DISPLAY_TYPE_CURSES;
2166 } else if (strstart(p, "gtk", &opts)) {
2167 dpy.type = DISPLAY_TYPE_GTK;
2168 while (*opts) {
2169 const char *nextopt;
2170
2171 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2172 opts = nextopt;
2173 dpy.u.gtk.has_grab_on_hover = true;
2174 if (strstart(opts, "on", &nextopt)) {
2175 dpy.u.gtk.grab_on_hover = true;
2176 } else if (strstart(opts, "off", &nextopt)) {
2177 dpy.u.gtk.grab_on_hover = false;
2178 } else {
2179 goto invalid_gtk_args;
2180 }
2181 } else if (strstart(opts, ",gl=", &nextopt)) {
2182 opts = nextopt;
2183 dpy.has_gl = true;
2184 if (strstart(opts, "on", &nextopt)) {
2185 dpy.gl = true;
2186 } else if (strstart(opts, "off", &nextopt)) {
2187 dpy.gl = false;
2188 } else {
2189 goto invalid_gtk_args;
2190 }
2191 } else {
2192 invalid_gtk_args:
2193 error_report("invalid GTK option string");
2194 exit(1);
2195 }
2196 opts = nextopt;
2197 }
2198 } else if (strstart(p, "none", &opts)) {
2199 dpy.type = DISPLAY_TYPE_NONE;
2200 } else {
2201 error_report("unknown display type");
2202 exit(1);
2203 }
2204 }
2205
2206 static int balloon_parse(const char *arg)
2207 {
2208 QemuOpts *opts;
2209
2210 if (strcmp(arg, "none") == 0) {
2211 return 0;
2212 }
2213
2214 if (!strncmp(arg, "virtio", 6)) {
2215 if (arg[6] == ',') {
2216 /* have params -> parse them */
2217 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2218 false);
2219 if (!opts)
2220 return -1;
2221 } else {
2222 /* create empty opts */
2223 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2224 &error_abort);
2225 }
2226 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2227 return 0;
2228 }
2229
2230 return -1;
2231 }
2232
2233 char *qemu_find_file(int type, const char *name)
2234 {
2235 int i;
2236 const char *subdir;
2237 char *buf;
2238
2239 /* Try the name as a straight path first */
2240 if (access(name, R_OK) == 0) {
2241 trace_load_file(name, name);
2242 return g_strdup(name);
2243 }
2244
2245 switch (type) {
2246 case QEMU_FILE_TYPE_BIOS:
2247 subdir = "";
2248 break;
2249 case QEMU_FILE_TYPE_KEYMAP:
2250 subdir = "keymaps/";
2251 break;
2252 default:
2253 abort();
2254 }
2255
2256 for (i = 0; i < data_dir_idx; i++) {
2257 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2258 if (access(buf, R_OK) == 0) {
2259 trace_load_file(name, buf);
2260 return buf;
2261 }
2262 g_free(buf);
2263 }
2264 return NULL;
2265 }
2266
2267 static void qemu_add_data_dir(const char *path)
2268 {
2269 int i;
2270
2271 if (path == NULL) {
2272 return;
2273 }
2274 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2275 return;
2276 }
2277 for (i = 0; i < data_dir_idx; i++) {
2278 if (strcmp(data_dir[i], path) == 0) {
2279 return; /* duplicate */
2280 }
2281 }
2282 data_dir[data_dir_idx++] = g_strdup(path);
2283 }
2284
2285 static inline bool nonempty_str(const char *str)
2286 {
2287 return str && *str;
2288 }
2289
2290 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2291 {
2292 gchar *buf;
2293 size_t size;
2294 const char *name, *file, *str;
2295 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2296
2297 if (fw_cfg == NULL) {
2298 error_report("fw_cfg device not available");
2299 return -1;
2300 }
2301 name = qemu_opt_get(opts, "name");
2302 file = qemu_opt_get(opts, "file");
2303 str = qemu_opt_get(opts, "string");
2304
2305 /* we need name and either a file or the content string */
2306 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2307 error_report("invalid argument(s)");
2308 return -1;
2309 }
2310 if (nonempty_str(file) && nonempty_str(str)) {
2311 error_report("file and string are mutually exclusive");
2312 return -1;
2313 }
2314 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2315 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2316 return -1;
2317 }
2318 if (strncmp(name, "opt/", 4) != 0) {
2319 warn_report("externally provided fw_cfg item names "
2320 "should be prefixed with \"opt/\"");
2321 }
2322 if (nonempty_str(str)) {
2323 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2324 buf = g_memdup(str, size);
2325 } else {
2326 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2327 error_report("can't load %s", file);
2328 return -1;
2329 }
2330 }
2331 /* For legacy, keep user files in a specific global order. */
2332 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2333 fw_cfg_add_file(fw_cfg, name, buf, size);
2334 fw_cfg_reset_order_override(fw_cfg);
2335 return 0;
2336 }
2337
2338 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2339 {
2340 return qdev_device_help(opts);
2341 }
2342
2343 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2344 {
2345 Error *err = NULL;
2346 DeviceState *dev;
2347
2348 dev = qdev_device_add(opts, &err);
2349 if (!dev) {
2350 error_report_err(err);
2351 return -1;
2352 }
2353 object_unref(OBJECT(dev));
2354 return 0;
2355 }
2356
2357 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2358 {
2359 Error *local_err = NULL;
2360
2361 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2362 if (local_err) {
2363 error_report_err(local_err);
2364 return -1;
2365 }
2366 exit(0);
2367 }
2368 return 0;
2369 }
2370
2371 #ifdef CONFIG_VIRTFS
2372 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2373 {
2374 return qemu_fsdev_add(opts);
2375 }
2376 #endif
2377
2378 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2379 {
2380 Chardev *chr;
2381 const char *chardev;
2382 const char *mode;
2383 int flags;
2384
2385 mode = qemu_opt_get(opts, "mode");
2386 if (mode == NULL) {
2387 mode = "readline";
2388 }
2389 if (strcmp(mode, "readline") == 0) {
2390 flags = MONITOR_USE_READLINE;
2391 } else if (strcmp(mode, "control") == 0) {
2392 flags = MONITOR_USE_CONTROL;
2393 } else {
2394 error_report("unknown monitor mode \"%s\"", mode);
2395 exit(1);
2396 }
2397
2398 if (qemu_opt_get_bool(opts, "pretty", 0))
2399 flags |= MONITOR_USE_PRETTY;
2400
2401 chardev = qemu_opt_get(opts, "chardev");
2402 chr = qemu_chr_find(chardev);
2403 if (chr == NULL) {
2404 error_report("chardev \"%s\" not found", chardev);
2405 exit(1);
2406 }
2407
2408 monitor_init(chr, flags);
2409 return 0;
2410 }
2411
2412 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2413 {
2414 static int monitor_device_index = 0;
2415 QemuOpts *opts;
2416 const char *p;
2417 char label[32];
2418
2419 if (strstart(optarg, "chardev:", &p)) {
2420 snprintf(label, sizeof(label), "%s", p);
2421 } else {
2422 snprintf(label, sizeof(label), "compat_monitor%d",
2423 monitor_device_index);
2424 opts = qemu_chr_parse_compat(label, optarg);
2425 if (!opts) {
2426 error_report("parse error: %s", optarg);
2427 exit(1);
2428 }
2429 }
2430
2431 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2432 qemu_opt_set(opts, "mode", mode, &error_abort);
2433 qemu_opt_set(opts, "chardev", label, &error_abort);
2434 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2435 monitor_device_index++;
2436 }
2437
2438 struct device_config {
2439 enum {
2440 DEV_USB, /* -usbdevice */
2441 DEV_BT, /* -bt */
2442 DEV_SERIAL, /* -serial */
2443 DEV_PARALLEL, /* -parallel */
2444 DEV_VIRTCON, /* -virtioconsole */
2445 DEV_DEBUGCON, /* -debugcon */
2446 DEV_GDB, /* -gdb, -s */
2447 DEV_SCLP, /* s390 sclp */
2448 } type;
2449 const char *cmdline;
2450 Location loc;
2451 QTAILQ_ENTRY(device_config) next;
2452 };
2453
2454 static QTAILQ_HEAD(, device_config) device_configs =
2455 QTAILQ_HEAD_INITIALIZER(device_configs);
2456
2457 static void add_device_config(int type, const char *cmdline)
2458 {
2459 struct device_config *conf;
2460
2461 conf = g_malloc0(sizeof(*conf));
2462 conf->type = type;
2463 conf->cmdline = cmdline;
2464 loc_save(&conf->loc);
2465 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2466 }
2467
2468 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2469 {
2470 struct device_config *conf;
2471 int rc;
2472
2473 QTAILQ_FOREACH(conf, &device_configs, next) {
2474 if (conf->type != type)
2475 continue;
2476 loc_push_restore(&conf->loc);
2477 rc = func(conf->cmdline);
2478 loc_pop(&conf->loc);
2479 if (rc) {
2480 return rc;
2481 }
2482 }
2483 return 0;
2484 }
2485
2486 static int serial_parse(const char *devname)
2487 {
2488 static int index = 0;
2489 char label[32];
2490
2491 if (strcmp(devname, "none") == 0)
2492 return 0;
2493 if (index == MAX_SERIAL_PORTS) {
2494 error_report("too many serial ports");
2495 exit(1);
2496 }
2497 snprintf(label, sizeof(label), "serial%d", index);
2498 serial_hds[index] = qemu_chr_new(label, devname);
2499 if (!serial_hds[index]) {
2500 error_report("could not connect serial device"
2501 " to character backend '%s'", devname);
2502 return -1;
2503 }
2504 index++;
2505 return 0;
2506 }
2507
2508 static int parallel_parse(const char *devname)
2509 {
2510 static int index = 0;
2511 char label[32];
2512
2513 if (strcmp(devname, "none") == 0)
2514 return 0;
2515 if (index == MAX_PARALLEL_PORTS) {
2516 error_report("too many parallel ports");
2517 exit(1);
2518 }
2519 snprintf(label, sizeof(label), "parallel%d", index);
2520 parallel_hds[index] = qemu_chr_new(label, devname);
2521 if (!parallel_hds[index]) {
2522 error_report("could not connect parallel device"
2523 " to character backend '%s'", devname);
2524 return -1;
2525 }
2526 index++;
2527 return 0;
2528 }
2529
2530 static int virtcon_parse(const char *devname)
2531 {
2532 QemuOptsList *device = qemu_find_opts("device");
2533 static int index = 0;
2534 char label[32];
2535 QemuOpts *bus_opts, *dev_opts;
2536
2537 if (strcmp(devname, "none") == 0)
2538 return 0;
2539 if (index == MAX_VIRTIO_CONSOLES) {
2540 error_report("too many virtio consoles");
2541 exit(1);
2542 }
2543
2544 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2545 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2546
2547 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2548 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2549
2550 snprintf(label, sizeof(label), "virtcon%d", index);
2551 virtcon_hds[index] = qemu_chr_new(label, devname);
2552 if (!virtcon_hds[index]) {
2553 error_report("could not connect virtio console"
2554 " to character backend '%s'", devname);
2555 return -1;
2556 }
2557 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2558
2559 index++;
2560 return 0;
2561 }
2562
2563 static int sclp_parse(const char *devname)
2564 {
2565 QemuOptsList *device = qemu_find_opts("device");
2566 static int index = 0;
2567 char label[32];
2568 QemuOpts *dev_opts;
2569
2570 if (strcmp(devname, "none") == 0) {
2571 return 0;
2572 }
2573 if (index == MAX_SCLP_CONSOLES) {
2574 error_report("too many sclp consoles");
2575 exit(1);
2576 }
2577
2578 assert(arch_type == QEMU_ARCH_S390X);
2579
2580 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2581 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2582
2583 snprintf(label, sizeof(label), "sclpcon%d", index);
2584 sclp_hds[index] = qemu_chr_new(label, devname);
2585 if (!sclp_hds[index]) {
2586 error_report("could not connect sclp console"
2587 " to character backend '%s'", devname);
2588 return -1;
2589 }
2590 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2591
2592 index++;
2593 return 0;
2594 }
2595
2596 static int debugcon_parse(const char *devname)
2597 {
2598 QemuOpts *opts;
2599
2600 if (!qemu_chr_new("debugcon", devname)) {
2601 exit(1);
2602 }
2603 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2604 if (!opts) {
2605 error_report("already have a debugcon device");
2606 exit(1);
2607 }
2608 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2609 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2610 return 0;
2611 }
2612
2613 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2614 {
2615 const MachineClass *mc1 = a, *mc2 = b;
2616 int res;
2617
2618 if (mc1->family == NULL) {
2619 if (mc2->family == NULL) {
2620 /* Compare standalone machine types against each other; they sort
2621 * in increasing order.
2622 */
2623 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2624 object_class_get_name(OBJECT_CLASS(mc2)));
2625 }
2626
2627 /* Standalone machine types sort after families. */
2628 return 1;
2629 }
2630
2631 if (mc2->family == NULL) {
2632 /* Families sort before standalone machine types. */
2633 return -1;
2634 }
2635
2636 /* Families sort between each other alphabetically increasingly. */
2637 res = strcmp(mc1->family, mc2->family);
2638 if (res != 0) {
2639 return res;
2640 }
2641
2642 /* Within the same family, machine types sort in decreasing order. */
2643 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2644 object_class_get_name(OBJECT_CLASS(mc1)));
2645 }
2646
2647 static MachineClass *machine_parse(const char *name)
2648 {
2649 MachineClass *mc = NULL;
2650 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2651
2652 if (name) {
2653 mc = find_machine(name);
2654 }
2655 if (mc) {
2656 g_slist_free(machines);
2657 return mc;
2658 }
2659 if (name && !is_help_option(name)) {
2660 error_report("unsupported machine type");
2661 error_printf("Use -machine help to list supported machines\n");
2662 } else {
2663 printf("Supported machines are:\n");
2664 machines = g_slist_sort(machines, machine_class_cmp);
2665 for (el = machines; el; el = el->next) {
2666 MachineClass *mc = el->data;
2667 if (mc->alias) {
2668 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2669 }
2670 printf("%-20s %s%s\n", mc->name, mc->desc,
2671 mc->is_default ? " (default)" : "");
2672 }
2673 }
2674
2675 g_slist_free(machines);
2676 exit(!name || !is_help_option(name));
2677 }
2678
2679 void qemu_add_exit_notifier(Notifier *notify)
2680 {
2681 notifier_list_add(&exit_notifiers, notify);
2682 }
2683
2684 void qemu_remove_exit_notifier(Notifier *notify)
2685 {
2686 notifier_remove(notify);
2687 }
2688
2689 static void qemu_run_exit_notifiers(void)
2690 {
2691 notifier_list_notify(&exit_notifiers, NULL);
2692 }
2693
2694 static bool machine_init_done;
2695
2696 void qemu_add_machine_init_done_notifier(Notifier *notify)
2697 {
2698 notifier_list_add(&machine_init_done_notifiers, notify);
2699 if (machine_init_done) {
2700 notify->notify(notify, NULL);
2701 }
2702 }
2703
2704 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2705 {
2706 notifier_remove(notify);
2707 }
2708
2709 static void qemu_run_machine_init_done_notifiers(void)
2710 {
2711 notifier_list_notify(&machine_init_done_notifiers, NULL);
2712 machine_init_done = true;
2713 }
2714
2715 static const QEMUOption *lookup_opt(int argc, char **argv,
2716 const char **poptarg, int *poptind)
2717 {
2718 const QEMUOption *popt;
2719 int optind = *poptind;
2720 char *r = argv[optind];
2721 const char *optarg;
2722
2723 loc_set_cmdline(argv, optind, 1);
2724 optind++;
2725 /* Treat --foo the same as -foo. */
2726 if (r[1] == '-')
2727 r++;
2728 popt = qemu_options;
2729 for(;;) {
2730 if (!popt->name) {
2731 error_report("invalid option");
2732 exit(1);
2733 }
2734 if (!strcmp(popt->name, r + 1))
2735 break;
2736 popt++;
2737 }
2738 if (popt->flags & HAS_ARG) {
2739 if (optind >= argc) {
2740 error_report("requires an argument");
2741 exit(1);
2742 }
2743 optarg = argv[optind++];
2744 loc_set_cmdline(argv, optind - 2, 2);
2745 } else {
2746 optarg = NULL;
2747 }
2748
2749 *poptarg = optarg;
2750 *poptind = optind;
2751
2752 return popt;
2753 }
2754
2755 static MachineClass *select_machine(void)
2756 {
2757 MachineClass *machine_class = find_default_machine();
2758 const char *optarg;
2759 QemuOpts *opts;
2760 Location loc;
2761
2762 loc_push_none(&loc);
2763
2764 opts = qemu_get_machine_opts();
2765 qemu_opts_loc_restore(opts);
2766
2767 optarg = qemu_opt_get(opts, "type");
2768 if (optarg) {
2769 machine_class = machine_parse(optarg);
2770 }
2771
2772 if (!machine_class) {
2773 error_report("No machine specified, and there is no default");
2774 error_printf("Use -machine help to list supported machines\n");
2775 exit(1);
2776 }
2777
2778 loc_pop(&loc);
2779 return machine_class;
2780 }
2781
2782 static int machine_set_property(void *opaque,
2783 const char *name, const char *value,
2784 Error **errp)
2785 {
2786 Object *obj = OBJECT(opaque);
2787 Error *local_err = NULL;
2788 char *p, *qom_name;
2789
2790 if (strcmp(name, "type") == 0) {
2791 return 0;
2792 }
2793
2794 qom_name = g_strdup(name);
2795 for (p = qom_name; *p; p++) {
2796 if (*p == '_') {
2797 *p = '-';
2798 }
2799 }
2800
2801 object_property_parse(obj, value, qom_name, &local_err);
2802 g_free(qom_name);
2803
2804 if (local_err) {
2805 error_report_err(local_err);
2806 return -1;
2807 }
2808
2809 return 0;
2810 }
2811
2812
2813 /*
2814 * Initial object creation happens before all other
2815 * QEMU data types are created. The majority of objects
2816 * can be created at this point. The rng-egd object
2817 * cannot be created here, as it depends on the chardev
2818 * already existing.
2819 */
2820 static bool object_create_initial(const char *type)
2821 {
2822 if (g_str_equal(type, "rng-egd") ||
2823 g_str_has_prefix(type, "pr-manager-")) {
2824 return false;
2825 }
2826
2827 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2828 if (g_str_equal(type, "cryptodev-vhost-user")) {
2829 return false;
2830 }
2831 #endif
2832
2833 /*
2834 * return false for concrete netfilters since
2835 * they depend on netdevs already existing
2836 */
2837 if (g_str_equal(type, "filter-buffer") ||
2838 g_str_equal(type, "filter-dump") ||
2839 g_str_equal(type, "filter-mirror") ||
2840 g_str_equal(type, "filter-redirector") ||
2841 g_str_equal(type, "colo-compare") ||
2842 g_str_equal(type, "filter-rewriter") ||
2843 g_str_equal(type, "filter-replay")) {
2844 return false;
2845 }
2846
2847 /* Memory allocation by backends needs to be done
2848 * after configure_accelerator() (due to the tcg_enabled()
2849 * checks at memory_region_init_*()).
2850 *
2851 * Also, allocation of large amounts of memory may delay
2852 * chardev initialization for too long, and trigger timeouts
2853 * on software that waits for a monitor socket to be created
2854 * (e.g. libvirt).
2855 */
2856 if (g_str_has_prefix(type, "memory-backend-")) {
2857 return false;
2858 }
2859
2860 return true;
2861 }
2862
2863
2864 /*
2865 * The remainder of object creation happens after the
2866 * creation of chardev, fsdev, net clients and device data types.
2867 */
2868 static bool object_create_delayed(const char *type)
2869 {
2870 return !object_create_initial(type);
2871 }
2872
2873
2874 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2875 MachineClass *mc)
2876 {
2877 uint64_t sz;
2878 const char *mem_str;
2879 const char *maxmem_str, *slots_str;
2880 const ram_addr_t default_ram_size = mc->default_ram_size;
2881 QemuOpts *opts = qemu_find_opts_singleton("memory");
2882 Location loc;
2883
2884 loc_push_none(&loc);
2885 qemu_opts_loc_restore(opts);
2886
2887 sz = 0;
2888 mem_str = qemu_opt_get(opts, "size");
2889 if (mem_str) {
2890 if (!*mem_str) {
2891 error_report("missing 'size' option value");
2892 exit(EXIT_FAILURE);
2893 }
2894
2895 sz = qemu_opt_get_size(opts, "size", ram_size);
2896
2897 /* Fix up legacy suffix-less format */
2898 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2899 uint64_t overflow_check = sz;
2900
2901 sz <<= 20;
2902 if ((sz >> 20) != overflow_check) {
2903 error_report("too large 'size' option value");
2904 exit(EXIT_FAILURE);
2905 }
2906 }
2907 }
2908
2909 /* backward compatibility behaviour for case "-m 0" */
2910 if (sz == 0) {
2911 sz = default_ram_size;
2912 }
2913
2914 sz = QEMU_ALIGN_UP(sz, 8192);
2915 ram_size = sz;
2916 if (ram_size != sz) {
2917 error_report("ram size too large");
2918 exit(EXIT_FAILURE);
2919 }
2920
2921 /* store value for the future use */
2922 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2923 *maxram_size = ram_size;
2924
2925 maxmem_str = qemu_opt_get(opts, "maxmem");
2926 slots_str = qemu_opt_get(opts, "slots");
2927 if (maxmem_str && slots_str) {
2928 uint64_t slots;
2929
2930 sz = qemu_opt_get_size(opts, "maxmem", 0);
2931 slots = qemu_opt_get_number(opts, "slots", 0);
2932 if (sz < ram_size) {
2933 error_report("invalid value of -m option maxmem: "
2934 "maximum memory size (0x%" PRIx64 ") must be at least "
2935 "the initial memory size (0x" RAM_ADDR_FMT ")",
2936 sz, ram_size);
2937 exit(EXIT_FAILURE);
2938 } else if (sz > ram_size) {
2939 if (!slots) {
2940 error_report("invalid value of -m option: maxmem was "
2941 "specified, but no hotplug slots were specified");
2942 exit(EXIT_FAILURE);
2943 }
2944 } else if (slots) {
2945 error_report("invalid value of -m option maxmem: "
2946 "memory slots were specified but maximum memory size "
2947 "(0x%" PRIx64 ") is equal to the initial memory size "
2948 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2949 exit(EXIT_FAILURE);
2950 }
2951
2952 *maxram_size = sz;
2953 *ram_slots = slots;
2954 } else if ((!maxmem_str && slots_str) ||
2955 (maxmem_str && !slots_str)) {
2956 error_report("invalid -m option value: missing "
2957 "'%s' option", slots_str ? "maxmem" : "slots");
2958 exit(EXIT_FAILURE);
2959 }
2960
2961 loc_pop(&loc);
2962 }
2963
2964 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2965 {
2966 GlobalProperty *g;
2967
2968 g = g_malloc0(sizeof(*g));
2969 g->driver = qemu_opt_get(opts, "driver");
2970 g->property = qemu_opt_get(opts, "property");
2971 g->value = qemu_opt_get(opts, "value");
2972 g->user_provided = true;
2973 g->errp = &error_fatal;
2974 qdev_prop_register_global(g);
2975 return 0;
2976 }
2977
2978 static int qemu_read_default_config_file(void)
2979 {
2980 int ret;
2981
2982 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2983 if (ret < 0 && ret != -ENOENT) {
2984 return ret;
2985 }
2986
2987 return 0;
2988 }
2989
2990 static void user_register_global_props(void)
2991 {
2992 qemu_opts_foreach(qemu_find_opts("global"),
2993 global_init_func, NULL, NULL);
2994 }
2995
2996 /*
2997 * Note: we should see that these properties are actually having a
2998 * priority: accel < machine < user. This means e.g. when user
2999 * specifies something in "-global", it'll always be used with highest
3000 * priority than either machine/accelerator compat properties.
3001 */
3002 static void register_global_properties(MachineState *ms)
3003 {
3004 accel_register_compat_props(ms->accelerator);
3005 machine_register_compat_props(ms);
3006 user_register_global_props();
3007 }
3008
3009 int main(int argc, char **argv, char **envp)
3010 {
3011 int i;
3012 int snapshot, linux_boot;
3013 const char *initrd_filename;
3014 const char *kernel_filename, *kernel_cmdline;
3015 const char *boot_order = NULL;
3016 const char *boot_once = NULL;
3017 DisplayState *ds;
3018 QemuOpts *opts, *machine_opts;
3019 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3020 QemuOptsList *olist;
3021 int optind;
3022 const char *optarg;
3023 const char *loadvm = NULL;
3024 MachineClass *machine_class;
3025 const char *cpu_model;
3026 const char *vga_model = NULL;
3027 const char *qtest_chrdev = NULL;
3028 const char *qtest_log = NULL;
3029 const char *pid_file = NULL;
3030 const char *incoming = NULL;
3031 bool userconfig = true;
3032 bool nographic = false;
3033 int display_remote = 0;
3034 const char *log_mask = NULL;
3035 const char *log_file = NULL;
3036 char *trace_file = NULL;
3037 ram_addr_t maxram_size;
3038 uint64_t ram_slots = 0;
3039 FILE *vmstate_dump_file = NULL;
3040 Error *main_loop_err = NULL;
3041 Error *err = NULL;
3042 bool list_data_dirs = false;
3043 char *dir, **dirs;
3044 typedef struct BlockdevOptions_queue {
3045 BlockdevOptions *bdo;
3046 Location loc;
3047 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3048 } BlockdevOptions_queue;
3049 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3050 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3051
3052 module_call_init(MODULE_INIT_TRACE);
3053
3054 qemu_init_cpu_list();
3055 qemu_init_cpu_loop();
3056 qemu_mutex_lock_iothread();
3057
3058 atexit(qemu_run_exit_notifiers);
3059 error_set_progname(argv[0]);
3060 qemu_init_exec_dir(argv[0]);
3061
3062 module_call_init(MODULE_INIT_QOM);
3063 monitor_init_qmp_commands();
3064
3065 qemu_add_opts(&qemu_drive_opts);
3066 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3067 qemu_add_drive_opts(&qemu_common_drive_opts);
3068 qemu_add_drive_opts(&qemu_drive_opts);
3069 qemu_add_drive_opts(&bdrv_runtime_opts);
3070 qemu_add_opts(&qemu_chardev_opts);
3071 qemu_add_opts(&qemu_device_opts);
3072 qemu_add_opts(&qemu_netdev_opts);
3073 qemu_add_opts(&qemu_net_opts);
3074 qemu_add_opts(&qemu_rtc_opts);
3075 qemu_add_opts(&qemu_global_opts);
3076 qemu_add_opts(&qemu_mon_opts);
3077 qemu_add_opts(&qemu_trace_opts);
3078 qemu_add_opts(&qemu_option_rom_opts);
3079 qemu_add_opts(&qemu_machine_opts);
3080 qemu_add_opts(&qemu_accel_opts);
3081 qemu_add_opts(&qemu_mem_opts);
3082 qemu_add_opts(&qemu_smp_opts);
3083 qemu_add_opts(&qemu_boot_opts);
3084 qemu_add_opts(&qemu_sandbox_opts);
3085 qemu_add_opts(&qemu_add_fd_opts);
3086 qemu_add_opts(&qemu_object_opts);
3087 qemu_add_opts(&qemu_tpmdev_opts);
3088 qemu_add_opts(&qemu_realtime_opts);
3089 qemu_add_opts(&qemu_msg_opts);
3090 qemu_add_opts(&qemu_name_opts);
3091 qemu_add_opts(&qemu_numa_opts);
3092 qemu_add_opts(&qemu_icount_opts);
3093 qemu_add_opts(&qemu_semihosting_config_opts);
3094 qemu_add_opts(&qemu_fw_cfg_opts);
3095 module_call_init(MODULE_INIT_OPTS);
3096
3097 runstate_init();
3098
3099 if (qcrypto_init(&err) < 0) {
3100 error_reportf_err(err, "cannot initialize crypto: ");
3101 exit(1);
3102 }
3103 rtc_clock = QEMU_CLOCK_HOST;
3104
3105 QLIST_INIT (&vm_change_state_head);
3106 os_setup_early_signal_handling();
3107
3108 cpu_model = NULL;
3109 snapshot = 0;
3110
3111 nb_nics = 0;
3112
3113 bdrv_init_with_whitelist();
3114
3115 autostart = 1;
3116
3117 /* first pass of option parsing */
3118 optind = 1;
3119 while (optind < argc) {
3120 if (argv[optind][0] != '-') {
3121 /* disk image */
3122 optind++;
3123 } else {
3124 const QEMUOption *popt;
3125
3126 popt = lookup_opt(argc, argv, &optarg, &optind);
3127 switch (popt->index) {
3128 case QEMU_OPTION_nodefconfig:
3129 case QEMU_OPTION_nouserconfig:
3130 userconfig = false;
3131 break;
3132 }
3133 }
3134 }
3135
3136 if (userconfig) {
3137 if (qemu_read_default_config_file() < 0) {
3138 exit(1);
3139 }
3140 }
3141
3142 /* second pass of option parsing */
3143 optind = 1;
3144 for(;;) {
3145 if (optind >= argc)
3146 break;
3147 if (argv[optind][0] != '-') {
3148 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3149 } else {
3150 const QEMUOption *popt;
3151
3152 popt = lookup_opt(argc, argv, &optarg, &optind);
3153 if (!(popt->arch_mask & arch_type)) {
3154 error_report("Option not supported for this target");
3155 exit(1);
3156 }
3157 switch(popt->index) {
3158 case QEMU_OPTION_no_kvm_irqchip: {
3159 olist = qemu_find_opts("machine");
3160 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3161 break;
3162 }
3163 case QEMU_OPTION_cpu:
3164 /* hw initialization will check this */
3165 cpu_model = optarg;
3166 break;
3167 case QEMU_OPTION_hda:
3168 case QEMU_OPTION_hdb:
3169 case QEMU_OPTION_hdc:
3170 case QEMU_OPTION_hdd:
3171 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3172 HD_OPTS);
3173 break;
3174 case QEMU_OPTION_blockdev:
3175 {
3176 Visitor *v;
3177 BlockdevOptions_queue *bdo;
3178
3179 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3180 if (!v) {
3181 error_report_err(err);
3182 exit(1);
3183 }
3184
3185 bdo = g_new(BlockdevOptions_queue, 1);
3186 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3187 &error_fatal);
3188 visit_free(v);
3189 loc_save(&bdo->loc);
3190 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3191 break;
3192 }
3193 case QEMU_OPTION_drive:
3194 if (drive_def(optarg) == NULL) {
3195 exit(1);
3196 }
3197 break;
3198 case QEMU_OPTION_set:
3199 if (qemu_set_option(optarg) != 0)
3200 exit(1);
3201 break;
3202 case QEMU_OPTION_global:
3203 if (qemu_global_option(optarg) != 0)
3204 exit(1);
3205 break;
3206 case QEMU_OPTION_mtdblock:
3207 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3208 break;
3209 case QEMU_OPTION_sd:
3210 drive_add(IF_SD, -1, optarg, SD_OPTS);
3211 break;
3212 case QEMU_OPTION_pflash:
3213 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3214 break;
3215 case QEMU_OPTION_snapshot:
3216 snapshot = 1;
3217 break;
3218 case QEMU_OPTION_numa:
3219 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3220 optarg, true);
3221 if (!opts) {
3222 exit(1);
3223 }
3224 break;
3225 case QEMU_OPTION_display:
3226 parse_display(optarg);
3227 break;
3228 case QEMU_OPTION_nographic:
3229 olist = qemu_find_opts("machine");
3230 qemu_opts_parse_noisily(olist, "graphics=off", false);
3231 nographic = true;
3232 dpy.type = DISPLAY_TYPE_NONE;
3233 break;
3234 case QEMU_OPTION_curses:
3235 #ifdef CONFIG_CURSES
3236 dpy.type = DISPLAY_TYPE_CURSES;
3237 #else
3238 error_report("curses support is disabled");
3239 exit(1);
3240 #endif
3241 break;
3242 case QEMU_OPTION_portrait:
3243 graphic_rotate = 90;
3244 break;
3245 case QEMU_OPTION_rotate:
3246 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3247 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3248 graphic_rotate != 180 && graphic_rotate != 270) {
3249 error_report("only 90, 180, 270 deg rotation is available");
3250 exit(1);
3251 }
3252 break;
3253 case QEMU_OPTION_kernel:
3254 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3255 &error_abort);
3256 break;
3257 case QEMU_OPTION_initrd:
3258 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3259 &error_abort);
3260 break;
3261 case QEMU_OPTION_append:
3262 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3263 &error_abort);
3264 break;
3265 case QEMU_OPTION_dtb:
3266 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3267 &error_abort);
3268 break;
3269 case QEMU_OPTION_cdrom:
3270 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3271 break;
3272 case QEMU_OPTION_boot:
3273 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3274 optarg, true);
3275 if (!opts) {
3276 exit(1);
3277 }
3278 break;
3279 case QEMU_OPTION_fda:
3280 case QEMU_OPTION_fdb:
3281 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3282 optarg, FD_OPTS);
3283 break;
3284 case QEMU_OPTION_no_fd_bootchk:
3285 fd_bootchk = 0;
3286 break;
3287 case QEMU_OPTION_netdev:
3288 default_net = 0;
3289 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3290 exit(1);
3291 }
3292 break;
3293 case QEMU_OPTION_net:
3294 default_net = 0;
3295 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3296 exit(1);
3297 }
3298 break;
3299 #ifdef CONFIG_LIBISCSI
3300 case QEMU_OPTION_iscsi:
3301 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3302 optarg, false);
3303 if (!opts) {
3304 exit(1);
3305 }
3306 break;
3307 #endif
3308 #ifdef CONFIG_SLIRP
3309 case QEMU_OPTION_tftp:
3310 error_report("The -tftp option is deprecated. "
3311 "Please use '-netdev user,tftp=...' instead.");
3312 legacy_tftp_prefix = optarg;
3313 break;
3314 case QEMU_OPTION_bootp:
3315 error_report("The -bootp option is deprecated. "
3316 "Please use '-netdev user,bootfile=...' instead.");
3317 legacy_bootp_filename = optarg;
3318 break;
3319 case QEMU_OPTION_redir:
3320 error_report("The -redir option is deprecated. "
3321 "Please use '-netdev user,hostfwd=...' instead.");
3322 if (net_slirp_redir(optarg) < 0)
3323 exit(1);
3324 break;
3325 #endif
3326 case QEMU_OPTION_bt:
3327 add_device_config(DEV_BT, optarg);
3328 break;
3329 case QEMU_OPTION_audio_help:
3330 AUD_help ();
3331 exit (0);
3332 break;
3333 case QEMU_OPTION_soundhw:
3334 select_soundhw (optarg);
3335 break;
3336 case QEMU_OPTION_h:
3337 help(0);
3338 break;
3339 case QEMU_OPTION_version:
3340 version();
3341 exit(0);
3342 break;
3343 case QEMU_OPTION_m:
3344 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3345 optarg, true);
3346 if (!opts) {
3347 exit(EXIT_FAILURE);
3348 }
3349 break;
3350 #ifdef CONFIG_TPM
3351 case QEMU_OPTION_tpmdev:
3352 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3353 exit(1);
3354 }
3355 break;
3356 #endif
3357 case QEMU_OPTION_mempath:
3358 mem_path = optarg;
3359 break;
3360 case QEMU_OPTION_mem_prealloc:
3361 mem_prealloc = 1;
3362 break;
3363 case QEMU_OPTION_d:
3364 log_mask = optarg;
3365 break;
3366 case QEMU_OPTION_D:
3367 log_file = optarg;
3368 break;
3369 case QEMU_OPTION_DFILTER:
3370 qemu_set_dfilter_ranges(optarg, &error_fatal);
3371 break;
3372 case QEMU_OPTION_s:
3373 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3374 break;
3375 case QEMU_OPTION_gdb:
3376 add_device_config(DEV_GDB, optarg);
3377 break;
3378 case QEMU_OPTION_L:
3379 if (is_help_option(optarg)) {
3380 list_data_dirs = true;
3381 } else {
3382 qemu_add_data_dir(optarg);
3383 }
3384 break;
3385 case QEMU_OPTION_bios:
3386 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3387 &error_abort);
3388 break;
3389 case QEMU_OPTION_singlestep:
3390 singlestep = 1;
3391 break;
3392 case QEMU_OPTION_S:
3393 autostart = 0;
3394 break;
3395 case QEMU_OPTION_k:
3396 keyboard_layout = optarg;
3397 break;
3398 case QEMU_OPTION_localtime:
3399 rtc_utc = 0;
3400 break;
3401 case QEMU_OPTION_vga:
3402 vga_model = optarg;
3403 default_vga = 0;
3404 break;
3405 case QEMU_OPTION_g:
3406 {
3407 const char *p;
3408 int w, h, depth;
3409 p = optarg;
3410 w = strtol(p, (char **)&p, 10);
3411 if (w <= 0) {
3412 graphic_error:
3413 error_report("invalid resolution or depth");
3414 exit(1);
3415 }
3416 if (*p != 'x')
3417 goto graphic_error;
3418 p++;
3419 h = strtol(p, (char **)&p, 10);
3420 if (h <= 0)
3421 goto graphic_error;
3422 if (*p == 'x') {
3423 p++;
3424 depth = strtol(p, (char **)&p, 10);
3425 if (depth != 8 && depth != 15 && depth != 16 &&
3426 depth != 24 && depth != 32)
3427 goto graphic_error;
3428 } else if (*p == '\0') {
3429 depth = graphic_depth;
3430 } else {
3431 goto graphic_error;
3432 }
3433
3434 graphic_width = w;
3435 graphic_height = h;
3436 graphic_depth = depth;
3437 }
3438 break;
3439 case QEMU_OPTION_echr:
3440 {
3441 char *r;
3442 term_escape_char = strtol(optarg, &r, 0);
3443 if (r == optarg)
3444 printf("Bad argument to echr\n");
3445 break;
3446 }
3447 case QEMU_OPTION_monitor:
3448 default_monitor = 0;
3449 if (strncmp(optarg, "none", 4)) {
3450 monitor_parse(optarg, "readline", false);
3451 }
3452 break;
3453 case QEMU_OPTION_qmp:
3454 monitor_parse(optarg, "control", false);
3455 default_monitor = 0;
3456 break;
3457 case QEMU_OPTION_qmp_pretty:
3458 monitor_parse(optarg, "control", true);
3459 default_monitor = 0;
3460 break;
3461 case QEMU_OPTION_mon:
3462 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3463 true);
3464 if (!opts) {
3465 exit(1);
3466 }
3467 default_monitor = 0;
3468 break;
3469 case QEMU_OPTION_chardev:
3470 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3471 optarg, true);
3472 if (!opts) {
3473 exit(1);
3474 }
3475 break;
3476 case QEMU_OPTION_fsdev:
3477 olist = qemu_find_opts("fsdev");
3478 if (!olist) {
3479 error_report("fsdev support is disabled");
3480 exit(1);
3481 }
3482 opts = qemu_opts_parse_noisily(olist, optarg, true);
3483 if (!opts) {
3484 exit(1);
3485 }
3486 break;
3487 case QEMU_OPTION_virtfs: {
3488 QemuOpts *fsdev;
3489 QemuOpts *device;
3490 const char *writeout, *sock_fd, *socket, *path, *security_model;
3491
3492 olist = qemu_find_opts("virtfs");
3493 if (!olist) {
3494 error_report("virtfs support is disabled");
3495 exit(1);
3496 }
3497 opts = qemu_opts_parse_noisily(olist, optarg, true);
3498 if (!opts) {
3499 exit(1);
3500 }
3501
3502 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3503 qemu_opt_get(opts, "mount_tag") == NULL) {
3504 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3505 exit(1);
3506 }
3507 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3508 qemu_opts_id(opts) ?:
3509 qemu_opt_get(opts, "mount_tag"),
3510 1, NULL);
3511 if (!fsdev) {
3512 error_report("duplicate or invalid fsdev id: %s",
3513 qemu_opt_get(opts, "mount_tag"));
3514 exit(1);
3515 }
3516
3517 writeout = qemu_opt_get(opts, "writeout");
3518 if (writeout) {
3519 #ifdef CONFIG_SYNC_FILE_RANGE
3520 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3521 #else
3522 error_report("writeout=immediate not supported "
3523 "on this platform");
3524 exit(1);
3525 #endif
3526 }
3527 qemu_opt_set(fsdev, "fsdriver",
3528 qemu_opt_get(opts, "fsdriver"), &error_abort);
3529 path = qemu_opt_get(opts, "path");
3530 if (path) {
3531 qemu_opt_set(fsdev, "path", path, &error_abort);
3532 }
3533 security_model = qemu_opt_get(opts, "security_model");
3534 if (security_model) {
3535 qemu_opt_set(fsdev, "security_model", security_model,
3536 &error_abort);
3537 }
3538 socket = qemu_opt_get(opts, "socket");
3539 if (socket) {
3540 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3541 }
3542 sock_fd = qemu_opt_get(opts, "sock_fd");
3543 if (sock_fd) {
3544 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3545 }
3546
3547 qemu_opt_set_bool(fsdev, "readonly",
3548 qemu_opt_get_bool(opts, "readonly", 0),
3549 &error_abort);
3550 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3551 &error_abort);
3552 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3553 qemu_opt_set(device, "fsdev",
3554 qemu_opts_id(fsdev), &error_abort);
3555 qemu_opt_set(device, "mount_tag",
3556 qemu_opt_get(opts, "mount_tag"), &error_abort);
3557 break;
3558 }
3559 case QEMU_OPTION_virtfs_synth: {
3560 QemuOpts *fsdev;
3561 QemuOpts *device;
3562
3563 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3564 1, NULL);
3565 if (!fsdev) {
3566 error_report("duplicate option: %s", "virtfs_synth");
3567 exit(1);
3568 }
3569 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3570
3571 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3572 &error_abort);
3573 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3574 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3575 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3576 break;
3577 }
3578 case QEMU_OPTION_serial:
3579 add_device_config(DEV_SERIAL, optarg);
3580 default_serial = 0;
3581 if (strncmp(optarg, "mon:", 4) == 0) {
3582 default_monitor = 0;
3583 }
3584 break;
3585 case QEMU_OPTION_watchdog:
3586 if (watchdog) {
3587 error_report("only one watchdog option may be given");
3588 return 1;
3589 }
3590 watchdog = optarg;
3591 break;
3592 case QEMU_OPTION_watchdog_action:
3593 if (select_watchdog_action(optarg) == -1) {
3594 error_report("unknown -watchdog-action parameter");
3595 exit(1);
3596 }
3597 break;
3598 case QEMU_OPTION_virtiocon:
3599 add_device_config(DEV_VIRTCON, optarg);
3600 default_virtcon = 0;
3601 if (strncmp(optarg, "mon:", 4) == 0) {
3602 default_monitor = 0;
3603 }
3604 break;
3605 case QEMU_OPTION_parallel:
3606 add_device_config(DEV_PARALLEL, optarg);
3607 default_parallel = 0;
3608 if (strncmp(optarg, "mon:", 4) == 0) {
3609 default_monitor = 0;
3610 }
3611 break;
3612 case QEMU_OPTION_debugcon:
3613 add_device_config(DEV_DEBUGCON, optarg);
3614 break;
3615 case QEMU_OPTION_loadvm:
3616 loadvm = optarg;
3617 break;
3618 case QEMU_OPTION_full_screen:
3619 dpy.has_full_screen = true;
3620 dpy.full_screen = true;
3621 break;
3622 case QEMU_OPTION_no_frame:
3623 g_printerr("The -no-frame switch is deprecated, and will be\n"
3624 "removed in a future release.\n");
3625 no_frame = 1;
3626 break;
3627 case QEMU_OPTION_alt_grab:
3628 alt_grab = 1;
3629 break;
3630 case QEMU_OPTION_ctrl_grab:
3631 ctrl_grab = 1;
3632 break;
3633 case QEMU_OPTION_no_quit:
3634 dpy.has_window_close = true;
3635 dpy.window_close = false;
3636 break;
3637 case QEMU_OPTION_sdl:
3638 #ifdef CONFIG_SDL
3639 dpy.type = DISPLAY_TYPE_SDL;
3640 break;
3641 #else
3642 error_report("SDL support is disabled");
3643 exit(1);
3644 #endif
3645 case QEMU_OPTION_pidfile:
3646 pid_file = optarg;
3647 break;
3648 case QEMU_OPTION_win2k_hack:
3649 win2k_install_hack = 1;
3650 break;
3651 case QEMU_OPTION_rtc_td_hack: {
3652 static GlobalProperty slew_lost_ticks = {
3653 .driver = "mc146818rtc",
3654 .property = "lost_tick_policy",
3655 .value = "slew",
3656 };
3657
3658 qdev_prop_register_global(&slew_lost_ticks);
3659 break;
3660 }
3661 case QEMU_OPTION_acpitable:
3662 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3663 optarg, true);
3664 if (!opts) {
3665 exit(1);
3666 }
3667 acpi_table_add(opts, &error_fatal);
3668 break;
3669 case QEMU_OPTION_smbios:
3670 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3671 optarg, false);
3672 if (!opts) {
3673 exit(1);
3674 }
3675 smbios_entry_add(opts, &error_fatal);
3676 break;
3677 case QEMU_OPTION_fwcfg:
3678 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3679 optarg, true);
3680 if (opts == NULL) {
3681 exit(1);
3682 }
3683 break;
3684 case QEMU_OPTION_enable_kvm:
3685 olist = qemu_find_opts("machine");
3686 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3687 break;
3688 case QEMU_OPTION_enable_hax:
3689 olist = qemu_find_opts("machine");
3690 qemu_opts_parse_noisily(olist, "accel=hax", false);
3691 break;
3692 case QEMU_OPTION_M:
3693 case QEMU_OPTION_machine:
3694 olist = qemu_find_opts("machine");
3695 opts = qemu_opts_parse_noisily(olist, optarg, true);
3696 if (!opts) {
3697 exit(1);
3698 }
3699 break;
3700 case QEMU_OPTION_no_kvm:
3701 olist = qemu_find_opts("machine");
3702 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3703 break;
3704 case QEMU_OPTION_no_kvm_pit_reinjection: {
3705 static GlobalProperty kvm_pit_lost_tick_policy = {
3706 .driver = "kvm-pit",
3707 .property = "lost_tick_policy",
3708 .value = "discard",
3709 };
3710
3711 warn_report("deprecated, replaced by "
3712 "-global kvm-pit.lost_tick_policy=discard");
3713 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3714 break;
3715 }
3716 case QEMU_OPTION_accel:
3717 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3718 optarg, true);
3719 optarg = qemu_opt_get(accel_opts, "accel");
3720 if (!optarg || is_help_option(optarg)) {
3721 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3722 exit(0);
3723 }
3724 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3725 false, &error_abort);
3726 qemu_opt_set(opts, "accel", optarg, &error_abort);
3727 break;
3728 case QEMU_OPTION_usb:
3729 olist = qemu_find_opts("machine");
3730 qemu_opts_parse_noisily(olist, "usb=on", false);
3731 break;
3732 case QEMU_OPTION_usbdevice:
3733 error_report("'-usbdevice' is deprecated, please use "
3734 "'-device usb-...' instead");
3735 olist = qemu_find_opts("machine");
3736 qemu_opts_parse_noisily(olist, "usb=on", false);
3737 add_device_config(DEV_USB, optarg);
3738 break;
3739 case QEMU_OPTION_device:
3740 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3741 optarg, true)) {
3742 exit(1);
3743 }
3744 break;
3745 case QEMU_OPTION_smp:
3746 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3747 optarg, true)) {
3748 exit(1);
3749 }
3750 break;
3751 case QEMU_OPTION_vnc:
3752 vnc_parse(optarg, &error_fatal);
3753 break;
3754 case QEMU_OPTION_no_acpi:
3755 acpi_enabled = 0;
3756 break;
3757 case QEMU_OPTION_no_hpet:
3758 no_hpet = 1;
3759 break;
3760 case QEMU_OPTION_balloon:
3761 if (balloon_parse(optarg) < 0) {
3762 error_report("unknown -balloon argument %s", optarg);
3763 exit(1);
3764 }
3765 break;
3766 case QEMU_OPTION_no_reboot:
3767 no_reboot = 1;
3768 break;
3769 case QEMU_OPTION_no_shutdown:
3770 no_shutdown = 1;
3771 break;
3772 case QEMU_OPTION_show_cursor:
3773 cursor_hide = 0;
3774 break;
3775 case QEMU_OPTION_uuid:
3776 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3777 error_report("failed to parse UUID string: wrong format");
3778 exit(1);
3779 }
3780 qemu_uuid_set = true;
3781 break;
3782 case QEMU_OPTION_option_rom:
3783 if (nb_option_roms >= MAX_OPTION_ROMS) {
3784 error_report("too many option ROMs");
3785 exit(1);
3786 }
3787 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3788 optarg, true);
3789 if (!opts) {
3790 exit(1);
3791 }
3792 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3793 option_rom[nb_option_roms].bootindex =
3794 qemu_opt_get_number(opts, "bootindex", -1);
3795 if (!option_rom[nb_option_roms].name) {
3796 error_report("Option ROM file is not specified");
3797 exit(1);
3798 }
3799 nb_option_roms++;
3800 break;
3801 case QEMU_OPTION_semihosting:
3802 semihosting.enabled = true;
3803 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3804 break;
3805 case QEMU_OPTION_semihosting_config:
3806 semihosting.enabled = true;
3807 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3808 optarg, false);
3809 if (opts != NULL) {
3810 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3811 true);
3812 const char *target = qemu_opt_get(opts, "target");
3813 if (target != NULL) {
3814 if (strcmp("native", target) == 0) {
3815 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3816 } else if (strcmp("gdb", target) == 0) {
3817 semihosting.target = SEMIHOSTING_TARGET_GDB;
3818 } else if (strcmp("auto", target) == 0) {
3819 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3820 } else {
3821 error_report("unsupported semihosting-config %s",
3822 optarg);
3823 exit(1);
3824 }
3825 } else {
3826 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3827 }
3828 /* Set semihosting argument count and vector */
3829 qemu_opt_foreach(opts, add_semihosting_arg,
3830 &semihosting, NULL);
3831 } else {
3832 error_report("unsupported semihosting-config %s", optarg);
3833 exit(1);
3834 }
3835 break;
3836 case QEMU_OPTION_tdf:
3837 warn_report("ignoring deprecated option");
3838 break;
3839 case QEMU_OPTION_name:
3840 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3841 optarg, true);
3842 if (!opts) {
3843 exit(1);
3844 }
3845 break;
3846 case QEMU_OPTION_prom_env:
3847 if (nb_prom_envs >= MAX_PROM_ENVS) {
3848 error_report("too many prom variables");
3849 exit(1);
3850 }
3851 prom_envs[nb_prom_envs] = optarg;
3852 nb_prom_envs++;
3853 break;
3854 case QEMU_OPTION_old_param:
3855 old_param = 1;
3856 break;
3857 case QEMU_OPTION_clock:
3858 /* Clock options no longer exist. Keep this option for
3859 * backward compatibility.
3860 */
3861 break;
3862 case QEMU_OPTION_startdate:
3863 configure_rtc_date_offset(optarg, 1);
3864 break;
3865 case QEMU_OPTION_rtc:
3866 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3867 false);
3868 if (!opts) {
3869 exit(1);
3870 }
3871 configure_rtc(opts);
3872 break;
3873 case QEMU_OPTION_tb_size:
3874 #ifndef CONFIG_TCG
3875 error_report("TCG is disabled");
3876 exit(1);
3877 #endif
3878 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3879 error_report("Invalid argument to -tb-size");
3880 exit(1);
3881 }
3882 break;
3883 case QEMU_OPTION_icount:
3884 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3885 optarg, true);
3886 if (!icount_opts) {
3887 exit(1);
3888 }
3889 break;
3890 case QEMU_OPTION_incoming:
3891 if (!incoming) {
3892 runstate_set(RUN_STATE_INMIGRATE);
3893 }
3894 incoming = optarg;
3895 break;
3896 case QEMU_OPTION_only_migratable:
3897 /*
3898 * TODO: we can remove this option one day, and we
3899 * should all use:
3900 *
3901 * "-global migration.only-migratable=true"
3902 */
3903 qemu_global_option("migration.only-migratable=true");
3904 break;
3905 case QEMU_OPTION_nodefaults:
3906 has_defaults = 0;
3907 break;
3908 case QEMU_OPTION_xen_domid:
3909 if (!(xen_available())) {
3910 error_report("Option not supported for this target");
3911 exit(1);
3912 }
3913 xen_domid = atoi(optarg);
3914 break;
3915 case QEMU_OPTION_xen_create:
3916 if (!(xen_available())) {
3917 error_report("Option not supported for this target");
3918 exit(1);
3919 }
3920 xen_mode = XEN_CREATE;
3921 break;
3922 case QEMU_OPTION_xen_attach:
3923 if (!(xen_available())) {
3924 error_report("Option not supported for this target");
3925 exit(1);
3926 }
3927 xen_mode = XEN_ATTACH;
3928 break;
3929 case QEMU_OPTION_xen_domid_restrict:
3930 if (!(xen_available())) {
3931 error_report("Option not supported for this target");
3932 exit(1);
3933 }
3934 xen_domid_restrict = true;
3935 break;
3936 case QEMU_OPTION_trace:
3937 g_free(trace_file);
3938 trace_file = trace_opt_parse(optarg);
3939 break;
3940 case QEMU_OPTION_readconfig:
3941 {
3942 int ret = qemu_read_config_file(optarg);
3943 if (ret < 0) {
3944 error_report("read config %s: %s", optarg,
3945 strerror(-ret));
3946 exit(1);
3947 }
3948 break;
3949 }
3950 case QEMU_OPTION_spice:
3951 olist = qemu_find_opts("spice");
3952 if (!olist) {
3953 error_report("spice support is disabled");
3954 exit(1);
3955 }
3956 opts = qemu_opts_parse_noisily(olist, optarg, false);
3957 if (!opts) {
3958 exit(1);
3959 }
3960 display_remote++;
3961 break;
3962 case QEMU_OPTION_writeconfig:
3963 {
3964 FILE *fp;
3965 if (strcmp(optarg, "-") == 0) {
3966 fp = stdout;
3967 } else {
3968 fp = fopen(optarg, "w");
3969 if (fp == NULL) {
3970 error_report("open %s: %s", optarg,
3971 strerror(errno));
3972 exit(1);
3973 }
3974 }
3975 qemu_config_write(fp);
3976 if (fp != stdout) {
3977 fclose(fp);
3978 }
3979 break;
3980 }
3981 case QEMU_OPTION_qtest:
3982 qtest_chrdev = optarg;
3983 break;
3984 case QEMU_OPTION_qtest_log:
3985 qtest_log = optarg;
3986 break;
3987 case QEMU_OPTION_sandbox:
3988 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3989 optarg, true);
3990 if (!opts) {
3991 exit(1);
3992 }
3993 break;
3994 case QEMU_OPTION_add_fd:
3995 #ifndef _WIN32
3996 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3997 optarg, false);
3998 if (!opts) {
3999 exit(1);
4000 }
4001 #else
4002 error_report("File descriptor passing is disabled on this "
4003 "platform");
4004 exit(1);
4005 #endif
4006 break;
4007 case QEMU_OPTION_object:
4008 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4009 optarg, true);
4010 if (!opts) {
4011 exit(1);
4012 }
4013 break;
4014 case QEMU_OPTION_realtime:
4015 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4016 optarg, false);
4017 if (!opts) {
4018 exit(1);
4019 }
4020 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4021 break;
4022 case QEMU_OPTION_msg:
4023 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4024 false);
4025 if (!opts) {
4026 exit(1);
4027 }
4028 configure_msg(opts);
4029 break;
4030 case QEMU_OPTION_dump_vmstate:
4031 if (vmstate_dump_file) {
4032 error_report("only one '-dump-vmstate' "
4033 "option may be given");
4034 exit(1);
4035 }
4036 vmstate_dump_file = fopen(optarg, "w");
4037 if (vmstate_dump_file == NULL) {
4038 error_report("open %s: %s", optarg, strerror(errno));
4039 exit(1);
4040 }
4041 break;
4042 default:
4043 os_parse_cmd_args(popt->index, optarg);
4044 }
4045 }
4046 }
4047 /*
4048 * Clear error location left behind by the loop.
4049 * Best done right after the loop. Do not insert code here!
4050 */
4051 loc_set_none();
4052
4053 replay_configure(icount_opts);
4054
4055 machine_class = select_machine();
4056
4057 set_memory_options(&ram_slots, &maxram_size, machine_class);
4058
4059 os_daemonize();
4060 rcu_disable_atfork();
4061
4062 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4063 error_report("could not acquire pid file: %s", strerror(errno));
4064 exit(1);
4065 }
4066
4067 if (qemu_init_main_loop(&main_loop_err)) {
4068 error_report_err(main_loop_err);
4069 exit(1);
4070 }
4071
4072 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4073 parse_sandbox, NULL, NULL)) {
4074 exit(1);
4075 }
4076
4077 if (qemu_opts_foreach(qemu_find_opts("name"),
4078 parse_name, NULL, NULL)) {
4079 exit(1);
4080 }
4081
4082 #ifndef _WIN32
4083 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4084 parse_add_fd, NULL, NULL)) {
4085 exit(1);
4086 }
4087
4088 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4089 cleanup_add_fd, NULL, NULL)) {
4090 exit(1);
4091 }
4092 #endif
4093
4094 current_machine = MACHINE(object_new(object_class_get_name(
4095 OBJECT_CLASS(machine_class))));
4096 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4097 exit(0);
4098 }
4099 object_property_add_child(object_get_root(), "machine",
4100 OBJECT(current_machine), &error_abort);
4101
4102 if (machine_class->minimum_page_bits) {
4103 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4104 /* This would be a board error: specifying a minimum smaller than
4105 * a target's compile-time fixed setting.
4106 */
4107 g_assert_not_reached();
4108 }
4109 }
4110
4111 cpu_exec_init_all();
4112
4113 if (machine_class->hw_version) {
4114 qemu_set_hw_version(machine_class->hw_version);
4115 }
4116
4117 if (cpu_model && is_help_option(cpu_model)) {
4118 list_cpus(stdout, &fprintf, cpu_model);
4119 exit(0);
4120 }
4121
4122 if (!trace_init_backends()) {
4123 exit(1);
4124 }
4125 trace_init_file(trace_file);
4126
4127 /* Open the logfile at this point and set the log mask if necessary.
4128 */
4129 if (log_file) {
4130 qemu_set_log_filename(log_file, &error_fatal);
4131 }
4132
4133 if (log_mask) {
4134 int mask;
4135 mask = qemu_str_to_log_mask(log_mask);
4136 if (!mask) {
4137 qemu_print_log_usage(stdout);
4138 exit(1);
4139 }
4140 qemu_set_log(mask);
4141 } else {
4142 qemu_set_log(0);
4143 }
4144
4145 /* add configured firmware directories */
4146 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4147 for (i = 0; dirs[i] != NULL; i++) {
4148 qemu_add_data_dir(dirs[i]);
4149 }
4150 g_strfreev(dirs);
4151
4152 /* try to find datadir relative to the executable path */
4153 dir = os_find_datadir();
4154 qemu_add_data_dir(dir);
4155 g_free(dir);
4156
4157 /* add the datadir specified when building */
4158 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4159
4160 /* -L help lists the data directories and exits. */
4161 if (list_data_dirs) {
4162 for (i = 0; i < data_dir_idx; i++) {
4163 printf("%s\n", data_dir[i]);
4164 }
4165 exit(0);
4166 }
4167
4168 /* machine_class: default to UP */
4169 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4170 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4171 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4172
4173 /* default to machine_class->default_cpus */
4174 smp_cpus = machine_class->default_cpus;
4175 max_cpus = machine_class->default_cpus;
4176
4177 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4178
4179 /* sanity-check smp_cpus and max_cpus against machine_class */
4180 if (smp_cpus < machine_class->min_cpus) {
4181 error_report("Invalid SMP CPUs %d. The min CPUs "
4182 "supported by machine '%s' is %d", smp_cpus,
4183 machine_class->name, machine_class->min_cpus);
4184 exit(1);
4185 }
4186 if (max_cpus > machine_class->max_cpus) {
4187 error_report("Invalid SMP CPUs %d. The max CPUs "
4188 "supported by machine '%s' is %d", max_cpus,
4189 machine_class->name, machine_class->max_cpus);
4190 exit(1);
4191 }
4192
4193 /*
4194 * Get the default machine options from the machine if it is not already
4195 * specified either by the configuration file or by the command line.
4196 */
4197 if (machine_class->default_machine_opts) {
4198 qemu_opts_set_defaults(qemu_find_opts("machine"),
4199 machine_class->default_machine_opts, 0);
4200 }
4201
4202 qemu_opts_foreach(qemu_find_opts("device"),
4203 default_driver_check, NULL, NULL);
4204 qemu_opts_foreach(qemu_find_opts("global"),
4205 default_driver_check, NULL, NULL);
4206
4207 if (!vga_model && !default_vga) {
4208 vga_interface_type = VGA_DEVICE;
4209 }
4210 if (!has_defaults || machine_class->no_serial) {
4211 default_serial = 0;
4212 }
4213 if (!has_defaults || machine_class->no_parallel) {
4214 default_parallel = 0;
4215 }
4216 if (!has_defaults || !machine_class->use_virtcon) {
4217 default_virtcon = 0;
4218 }
4219 if (!has_defaults || !machine_class->use_sclp) {
4220 default_sclp = 0;
4221 }
4222 if (!has_defaults || machine_class->no_floppy) {
4223 default_floppy = 0;
4224 }
4225 if (!has_defaults || machine_class->no_cdrom) {
4226 default_cdrom = 0;
4227 }
4228 if (!has_defaults || machine_class->no_sdcard) {
4229 default_sdcard = 0;
4230 }
4231 if (!has_defaults) {
4232 default_monitor = 0;
4233 default_net = 0;
4234 default_vga = 0;
4235 }
4236
4237 if (is_daemonized()) {
4238 /* According to documentation and historically, -nographic redirects
4239 * serial port, parallel port and monitor to stdio, which does not work
4240 * with -daemonize. We can redirect these to null instead, but since
4241 * -nographic is legacy, let's just error out.
4242 * We disallow -nographic only if all other ports are not redirected
4243 * explicitly, to not break existing legacy setups which uses
4244 * -nographic _and_ redirects all ports explicitly - this is valid
4245 * usage, -nographic is just a no-op in this case.
4246 */
4247 if (nographic
4248 && (default_parallel || default_serial
4249 || default_monitor || default_virtcon)) {
4250 error_report("-nographic cannot be used with -daemonize");
4251 exit(1);
4252 }
4253 #ifdef CONFIG_CURSES
4254 if (dpy.type == DISPLAY_TYPE_CURSES) {
4255 error_report("curses display cannot be used with -daemonize");
4256 exit(1);
4257 }
4258 #endif
4259 }
4260
4261 if (nographic) {
4262 if (default_parallel)
4263 add_device_config(DEV_PARALLEL, "null");
4264 if (default_serial && default_monitor) {
4265 add_device_config(DEV_SERIAL, "mon:stdio");
4266 } else if (default_virtcon && default_monitor) {
4267 add_device_config(DEV_VIRTCON, "mon:stdio");
4268 } else if (default_sclp && default_monitor) {
4269 add_device_config(DEV_SCLP, "mon:stdio");
4270 } else {
4271 if (default_serial)
4272 add_device_config(DEV_SERIAL, "stdio");
4273 if (default_virtcon)
4274 add_device_config(DEV_VIRTCON, "stdio");
4275 if (default_sclp) {
4276 add_device_config(DEV_SCLP, "stdio");
4277 }
4278 if (default_monitor)
4279 monitor_parse("stdio", "readline", false);
4280 }
4281 } else {
4282 if (default_serial)
4283 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4284 if (default_parallel)
4285 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4286 if (default_monitor)
4287 monitor_parse("vc:80Cx24C", "readline", false);
4288 if (default_virtcon)
4289 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4290 if (default_sclp) {
4291 add_device_config(DEV_SCLP, "vc:80Cx24C");
4292 }
4293 }
4294
4295 #if defined(CONFIG_VNC)
4296 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4297 display_remote++;
4298 }
4299 #endif
4300 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4301 if (!qemu_display_find_default(&dpy)) {
4302 dpy.type = DISPLAY_TYPE_NONE;
4303 #if defined(CONFIG_VNC)
4304 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4305 #endif
4306 }
4307 }
4308 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4309 dpy.type = DISPLAY_TYPE_NONE;
4310 }
4311
4312 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4313 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4314 "for SDL, ignoring option");
4315 }
4316 if (dpy.has_window_close &&
4317 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4318 error_report("-no-quit is only valid for GTK and SDL, "
4319 "ignoring option");
4320 }
4321
4322 qemu_display_early_init(&dpy);
4323 qemu_console_early_init();
4324
4325 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4326 #if defined(CONFIG_OPENGL)
4327 error_report("OpenGL is not supported by the display");
4328 #else
4329 error_report("OpenGL support is disabled");
4330 #endif
4331 exit(1);
4332 }
4333
4334 page_size_init();
4335 socket_init();
4336
4337 if (qemu_opts_foreach(qemu_find_opts("object"),
4338 user_creatable_add_opts_foreach,
4339 object_create_initial, NULL)) {
4340 exit(1);
4341 }
4342
4343 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4344 chardev_init_func, NULL, NULL)) {
4345 exit(1);
4346 }
4347
4348 #ifdef CONFIG_VIRTFS
4349 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4350 fsdev_init_func, NULL, NULL)) {
4351 exit(1);
4352 }
4353 #endif
4354
4355 if (qemu_opts_foreach(qemu_find_opts("device"),
4356 device_help_func, NULL, NULL)) {
4357 exit(0);
4358 }
4359
4360 machine_opts = qemu_get_machine_opts();
4361 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4362 NULL)) {
4363 object_unref(OBJECT(current_machine));
4364 exit(1);
4365 }
4366
4367 configure_accelerator(current_machine);
4368
4369 /*
4370 * Register all the global properties, including accel properties,
4371 * machine properties, and user-specified ones.
4372 */
4373 register_global_properties(current_machine);
4374
4375 /*
4376 * Migration object can only be created after global properties
4377 * are applied correctly.
4378 */
4379 migration_object_init();
4380
4381 if (qtest_chrdev) {
4382 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4383 }
4384
4385 machine_opts = qemu_get_machine_opts();
4386 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4387 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4388 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4389 bios_name = qemu_opt_get(machine_opts, "firmware");
4390
4391 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4392 if (opts) {
4393 boot_order = qemu_opt_get(opts, "order");
4394 if (boot_order) {
4395 validate_bootdevices(boot_order, &error_fatal);
4396 }
4397
4398 boot_once = qemu_opt_get(opts, "once");
4399 if (boot_once) {
4400 validate_bootdevices(boot_once, &error_fatal);
4401 }
4402
4403 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4404 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4405 }
4406
4407 if (!boot_order) {
4408 boot_order = machine_class->default_boot_order;
4409 }
4410
4411 if (!kernel_cmdline) {
4412 kernel_cmdline = "";
4413 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4414 }
4415
4416 linux_boot = (kernel_filename != NULL);
4417
4418 if (!linux_boot && *kernel_cmdline != '\0') {
4419 error_report("-append only allowed with -kernel option");
4420 exit(1);
4421 }
4422
4423 if (!linux_boot && initrd_filename != NULL) {
4424 error_report("-initrd only allowed with -kernel option");
4425 exit(1);
4426 }
4427
4428 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4429 /* fall back to the -kernel/-append */
4430 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4431 }
4432
4433 os_set_line_buffering();
4434
4435 /* spice needs the timers to be initialized by this point */
4436 qemu_spice_init();
4437
4438 cpu_ticks_init();
4439 if (icount_opts) {
4440 if (!tcg_enabled()) {
4441 error_report("-icount is not allowed with hardware virtualization");
4442 exit(1);
4443 }
4444 configure_icount(icount_opts, &error_abort);
4445 qemu_opts_del(icount_opts);
4446 }
4447
4448 if (tcg_enabled()) {
4449 qemu_tcg_configure(accel_opts, &error_fatal);
4450 }
4451
4452 if (default_net) {
4453 QemuOptsList *net = qemu_find_opts("net");
4454 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4455 #ifdef CONFIG_SLIRP
4456 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4457 #endif
4458 }
4459
4460 colo_info_init();
4461
4462 if (net_init_clients() < 0) {
4463 exit(1);
4464 }
4465
4466 if (qemu_opts_foreach(qemu_find_opts("object"),
4467 user_creatable_add_opts_foreach,
4468 object_create_delayed, NULL)) {
4469 exit(1);
4470 }
4471
4472 if (tpm_init() < 0) {
4473 exit(1);
4474 }
4475
4476 /* init the bluetooth world */
4477 if (foreach_device_config(DEV_BT, bt_parse))
4478 exit(1);
4479
4480 if (!xen_enabled()) {
4481 /* On 32-bit hosts, QEMU is limited by virtual address space */
4482 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4483 error_report("at most 2047 MB RAM can be simulated");
4484 exit(1);
4485 }
4486 }
4487
4488 blk_mig_init();
4489 ram_mig_init();
4490
4491 /* If the currently selected machine wishes to override the units-per-bus
4492 * property of its default HBA interface type, do so now. */
4493 if (machine_class->units_per_default_bus) {
4494 override_max_devs(machine_class->block_default_type,
4495 machine_class->units_per_default_bus);
4496 }
4497
4498 /* open the virtual block devices */
4499 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4500 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4501
4502 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4503 loc_push_restore(&bdo->loc);
4504 qmp_blockdev_add(bdo->bdo, &error_fatal);
4505 loc_pop(&bdo->loc);
4506 qapi_free_BlockdevOptions(bdo->bdo);
4507 g_free(bdo);
4508 }
4509 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4510 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4511 NULL, NULL);
4512 }
4513 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4514 &machine_class->block_default_type, NULL)) {
4515 exit(1);
4516 }
4517
4518 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4519 CDROM_OPTS);
4520 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4521 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4522
4523 if (qemu_opts_foreach(qemu_find_opts("mon"),
4524 mon_init_func, NULL, NULL)) {
4525 exit(1);
4526 }
4527
4528 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4529 exit(1);
4530 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4531 exit(1);
4532 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4533 exit(1);
4534 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4535 exit(1);
4536 }
4537 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4538 exit(1);
4539
4540 /* If no default VGA is requested, the default is "none". */
4541 if (default_vga) {
4542 if (machine_class->default_display) {
4543 vga_model = machine_class->default_display;
4544 } else if (vga_interface_available(VGA_CIRRUS)) {
4545 vga_model = "cirrus";
4546 } else if (vga_interface_available(VGA_STD)) {
4547 vga_model = "std";
4548 }
4549 }
4550 if (vga_model) {
4551 select_vgahw(vga_model);
4552 }
4553
4554 if (watchdog) {
4555 i = select_watchdog(watchdog);
4556 if (i > 0)
4557 exit (i == 1 ? 1 : 0);
4558 }
4559
4560 /* This checkpoint is required by replay to separate prior clock
4561 reading from the other reads, because timer polling functions query
4562 clock values from the log. */
4563 replay_checkpoint(CHECKPOINT_INIT);
4564 qdev_machine_init();
4565
4566 current_machine->ram_size = ram_size;
4567 current_machine->maxram_size = maxram_size;
4568 current_machine->ram_slots = ram_slots;
4569 current_machine->boot_order = boot_order;
4570 current_machine->cpu_model = cpu_model;
4571
4572 /* parse features once if machine provides default cpu_type */
4573 if (machine_class->default_cpu_type) {
4574 current_machine->cpu_type = machine_class->default_cpu_type;
4575 if (cpu_model) {
4576 current_machine->cpu_type =
4577 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4578 }
4579 }
4580 parse_numa_opts(current_machine);
4581
4582 machine_run_board_init(current_machine);
4583
4584 realtime_init();
4585
4586 soundhw_init();
4587
4588 if (hax_enabled()) {
4589 hax_sync_vcpus();
4590 }
4591
4592 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4593 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4594 exit(1);
4595 }
4596
4597 /* init USB devices */
4598 if (machine_usb(current_machine)) {
4599 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4600 exit(1);
4601 }
4602
4603 /* Check if IGD GFX passthrough. */
4604 igd_gfx_passthru();
4605
4606 /* init generic devices */
4607 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4608 if (qemu_opts_foreach(qemu_find_opts("device"),
4609 device_init_func, NULL, NULL)) {
4610 exit(1);
4611 }
4612
4613 cpu_synchronize_all_post_init();
4614
4615 rom_reset_order_override();
4616
4617 /*
4618 * Create frontends for -drive if=scsi leftovers.
4619 * Normally, frontends for -drive get created by machine
4620 * initialization for onboard SCSI HBAs. However, we create a few
4621 * more ever since SCSI qdevification, but this is pretty much an
4622 * implementation accident, and deprecated.
4623 */
4624 scsi_legacy_handle_cmdline();
4625
4626 /* Did we create any drives that we failed to create a device for? */
4627 drive_check_orphaned();
4628
4629 /* Don't warn about the default network setup that you get if
4630 * no command line -net or -netdev options are specified. There
4631 * are two cases that we would otherwise complain about:
4632 * (1) board doesn't support a NIC but the implicit "-net nic"
4633 * requested one
4634 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4635 * sets up a nic that isn't connected to anything.
4636 */
4637 if (!default_net) {
4638 net_check_clients();
4639 }
4640
4641
4642 if (boot_once) {
4643 qemu_boot_set(boot_once, &error_fatal);
4644 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4645 }
4646
4647 /* init local displays */
4648 ds = init_displaystate();
4649 qemu_display_init(ds, &dpy);
4650
4651 /* must be after terminal init, SDL library changes signal handlers */
4652 os_setup_signal_handling();
4653
4654 /* init remote displays */
4655 #ifdef CONFIG_VNC
4656 qemu_opts_foreach(qemu_find_opts("vnc"),
4657 vnc_init_func, NULL, NULL);
4658 #endif
4659
4660 if (using_spice) {
4661 qemu_spice_display_init();
4662 }
4663
4664 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4665 exit(1);
4666 }
4667
4668 qdev_machine_creation_done();
4669
4670 /* TODO: once all bus devices are qdevified, this should be done
4671 * when bus is created by qdev.c */
4672 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4673 qemu_run_machine_init_done_notifiers();
4674
4675 if (rom_check_and_register_reset() != 0) {
4676 error_report("rom check and register reset failed");
4677 exit(1);
4678 }
4679
4680 replay_start();
4681
4682 /* This checkpoint is required by replay to separate prior clock
4683 reading from the other reads, because timer polling functions query
4684 clock values from the log. */
4685 replay_checkpoint(CHECKPOINT_RESET);
4686 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4687 register_global_state();
4688 if (replay_mode != REPLAY_MODE_NONE) {
4689 replay_vmstate_init();
4690 } else if (loadvm) {
4691 Error *local_err = NULL;
4692 if (load_snapshot(loadvm, &local_err) < 0) {
4693 error_report_err(local_err);
4694 autostart = 0;
4695 }
4696 }
4697
4698 qdev_prop_check_globals();
4699 if (vmstate_dump_file) {
4700 /* dump and exit */
4701 dump_vmstate_json_to_file(vmstate_dump_file);
4702 return 0;
4703 }
4704
4705 if (incoming) {
4706 Error *local_err = NULL;
4707 qemu_start_incoming_migration(incoming, &local_err);
4708 if (local_err) {
4709 error_reportf_err(local_err, "-incoming %s: ", incoming);
4710 exit(1);
4711 }
4712 } else if (autostart) {
4713 vm_start();
4714 }
4715
4716 os_setup_post();
4717
4718 main_loop();
4719 replay_disable_events();
4720
4721 /* The ordering of the following is delicate. Stop vcpus to prevent new
4722 * I/O requests being queued by the guest. Then stop IOThreads (this
4723 * includes a drain operation and completes all request processing). At
4724 * this point emulated devices are still associated with their IOThreads
4725 * (if any) but no longer have any work to do. Only then can we close
4726 * block devices safely because we know there is no more I/O coming.
4727 */
4728 pause_all_vcpus();
4729 iothread_stop_all();
4730 bdrv_close_all();
4731
4732 res_free();
4733
4734 /* vhost-user must be cleaned up before chardevs. */
4735 tpm_cleanup();
4736 net_cleanup();
4737 audio_cleanup();
4738 monitor_cleanup();
4739 qemu_chr_cleanup();
4740 user_creatable_cleanup();
4741 migration_object_finalize();
4742 /* TODO: unref root container, check all devices are ok */
4743
4744 return 0;
4745 }
AR7 emulation for QEMU