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Revert "armv7m: Guard against no -kernel argument"
[qemu/ar7.git] / vl.c
blob0db5ad02465757ec305ae6b9004865f19d93f772
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 "qemu/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
33
34 #ifdef CONFIG_SDL
35 #if defined(__APPLE__) || defined(main)
36 #include <SDL.h>
37 int qemu_main(int argc, char **argv, char **envp);
38 int main(int argc, char **argv)
39 {
40 return qemu_main(argc, argv, NULL);
41 }
42 #undef main
43 #define main qemu_main
44 #endif
45 #endif /* CONFIG_SDL */
46
47 #ifdef CONFIG_COCOA
48 #undef main
49 #define main qemu_main
50 #endif /* CONFIG_COCOA */
51
52
53 #include "qemu/error-report.h"
54 #include "qemu/sockets.h"
55 #include "hw/hw.h"
56 #include "hw/boards.h"
57 #include "sysemu/accel.h"
58 #include "hw/usb.h"
59 #include "hw/isa/isa.h"
60 #include "hw/scsi/scsi.h"
61 #include "hw/display/vga.h"
62 #include "hw/bt.h"
63 #include "sysemu/watchdog.h"
64 #include "hw/firmware/smbios.h"
65 #include "hw/acpi/acpi.h"
66 #include "hw/xen/xen.h"
67 #include "hw/qdev.h"
68 #include "hw/loader.h"
69 #include "monitor/qdev.h"
70 #include "sysemu/bt.h"
71 #include "net/net.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
75 #include "ui/input.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
82 #include "qemu/log.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
102 #ifdef CONFIG_VIRTFS
103 #include "fsdev/qemu-fsdev.h"
104 #endif
105 #include "sysemu/qtest.h"
106
107 #include "disas/disas.h"
108
109
110 #include "slirp/libslirp.h"
111
112 #include "trace-root.h"
113 #include "trace/control.h"
114 #include "qemu/queue.h"
115 #include "sysemu/arch_init.h"
116
117 #include "ui/qemu-spice.h"
118 #include "qapi/string-input-visitor.h"
119 #include "qapi/opts-visitor.h"
120 #include "qapi/clone-visitor.h"
121 #include "qom/object_interfaces.h"
122 #include "exec/semihost.h"
123 #include "crypto/init.h"
124 #include "sysemu/replay.h"
125 #include "qapi/qapi-events-run-state.h"
126 #include "qapi/qapi-visit-block-core.h"
127 #include "qapi/qapi-visit-ui.h"
128 #include "qapi/qapi-commands-block-core.h"
129 #include "qapi/qapi-commands-misc.h"
130 #include "qapi/qapi-commands-run-state.h"
131 #include "qapi/qapi-commands-ui.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134
135 #define MAX_VIRTIO_CONSOLES 1
136
137 static const char *data_dir[16];
138 static int data_dir_idx;
139 const char *bios_name = NULL;
140 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
141 int display_opengl;
142 const char* keyboard_layout = NULL;
143 ram_addr_t ram_size;
144 const char *mem_path = NULL;
145 int mem_prealloc = 0; /* force preallocation of physical target memory */
146 bool enable_mlock = false;
147 bool enable_cpu_pm = false;
148 int nb_nics;
149 NICInfo nd_table[MAX_NICS];
150 int autostart;
151 static enum {
152 RTC_BASE_UTC,
153 RTC_BASE_LOCALTIME,
154 RTC_BASE_DATETIME,
155 } rtc_base_type = RTC_BASE_UTC;
156 static time_t rtc_ref_start_datetime;
157 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
158 static int rtc_host_datetime_offset = -1; /* valid & used only with
159 RTC_BASE_DATETIME */
160 QEMUClockType rtc_clock;
161 int vga_interface_type = VGA_NONE;
162 static DisplayOptions dpy;
163 int no_frame;
164 static int num_serial_hds;
165 static Chardev **serial_hds;
166 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
167 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
168 int win2k_install_hack = 0;
169 int singlestep = 0;
170 int smp_cpus;
171 unsigned int max_cpus;
172 int smp_cores = 1;
173 int smp_threads = 1;
174 int acpi_enabled = 1;
175 int no_hpet = 0;
176 int fd_bootchk = 1;
177 static int no_reboot;
178 int no_shutdown = 0;
179 int cursor_hide = 1;
180 int graphic_rotate = 0;
181 const char *watchdog;
182 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
183 int nb_option_roms;
184 int old_param = 0;
185 const char *qemu_name;
186 int alt_grab = 0;
187 int ctrl_grab = 0;
188 unsigned int nb_prom_envs = 0;
189 const char *prom_envs[MAX_PROM_ENVS];
190 int boot_menu;
191 bool boot_strict;
192 uint8_t *boot_splash_filedata;
193 size_t boot_splash_filedata_size;
194 bool wakeup_suspend_enabled;
195
196 int icount_align_option;
197
198 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
199 * little-endian "wire format" described in the SMBIOS 2.6 specification.
200 */
201 QemuUUID qemu_uuid;
202 bool qemu_uuid_set;
203
204 static NotifierList exit_notifiers =
205 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
206
207 static NotifierList machine_init_done_notifiers =
208 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
209
210 bool xen_allowed;
211 uint32_t xen_domid;
212 enum xen_mode xen_mode = XEN_EMULATE;
213 bool xen_domid_restrict;
214
215 static int has_defaults = 1;
216 static int default_serial = 1;
217 static int default_parallel = 1;
218 static int default_virtcon = 1;
219 static int default_monitor = 1;
220 static int default_floppy = 1;
221 static int default_cdrom = 1;
222 static int default_sdcard = 1;
223 static int default_vga = 1;
224 static int default_net = 1;
225
226 static struct {
227 const char *driver;
228 int *flag;
229 } default_list[] = {
230 { .driver = "isa-serial", .flag = &default_serial },
231 { .driver = "isa-parallel", .flag = &default_parallel },
232 { .driver = "isa-fdc", .flag = &default_floppy },
233 { .driver = "floppy", .flag = &default_floppy },
234 { .driver = "ide-cd", .flag = &default_cdrom },
235 { .driver = "ide-hd", .flag = &default_cdrom },
236 { .driver = "ide-drive", .flag = &default_cdrom },
237 { .driver = "scsi-cd", .flag = &default_cdrom },
238 { .driver = "scsi-hd", .flag = &default_cdrom },
239 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
240 { .driver = "virtio-serial", .flag = &default_virtcon },
241 { .driver = "VGA", .flag = &default_vga },
242 { .driver = "isa-vga", .flag = &default_vga },
243 { .driver = "cirrus-vga", .flag = &default_vga },
244 { .driver = "isa-cirrus-vga", .flag = &default_vga },
245 { .driver = "vmware-svga", .flag = &default_vga },
246 { .driver = "qxl-vga", .flag = &default_vga },
247 { .driver = "virtio-vga", .flag = &default_vga },
248 };
249
250 static QemuOptsList qemu_rtc_opts = {
251 .name = "rtc",
252 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
253 .merge_lists = true,
254 .desc = {
255 {
256 .name = "base",
257 .type = QEMU_OPT_STRING,
258 },{
259 .name = "clock",
260 .type = QEMU_OPT_STRING,
261 },{
262 .name = "driftfix",
263 .type = QEMU_OPT_STRING,
264 },
265 { /* end of list */ }
266 },
267 };
268
269 static QemuOptsList qemu_option_rom_opts = {
270 .name = "option-rom",
271 .implied_opt_name = "romfile",
272 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
273 .desc = {
274 {
275 .name = "bootindex",
276 .type = QEMU_OPT_NUMBER,
277 }, {
278 .name = "romfile",
279 .type = QEMU_OPT_STRING,
280 },
281 { /* end of list */ }
282 },
283 };
284
285 static QemuOptsList qemu_machine_opts = {
286 .name = "machine",
287 .implied_opt_name = "type",
288 .merge_lists = true,
289 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
290 .desc = {
291 /*
292 * no elements => accept any
293 * sanity checking will happen later
294 * when setting machine properties
295 */
296 { }
297 },
298 };
299
300 static QemuOptsList qemu_accel_opts = {
301 .name = "accel",
302 .implied_opt_name = "accel",
303 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
304 .merge_lists = true,
305 .desc = {
306 {
307 .name = "accel",
308 .type = QEMU_OPT_STRING,
309 .help = "Select the type of accelerator",
310 },
311 {
312 .name = "thread",
313 .type = QEMU_OPT_STRING,
314 .help = "Enable/disable multi-threaded TCG",
315 },
316 { /* end of list */ }
317 },
318 };
319
320 static QemuOptsList qemu_boot_opts = {
321 .name = "boot-opts",
322 .implied_opt_name = "order",
323 .merge_lists = true,
324 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
325 .desc = {
326 {
327 .name = "order",
328 .type = QEMU_OPT_STRING,
329 }, {
330 .name = "once",
331 .type = QEMU_OPT_STRING,
332 }, {
333 .name = "menu",
334 .type = QEMU_OPT_BOOL,
335 }, {
336 .name = "splash",
337 .type = QEMU_OPT_STRING,
338 }, {
339 .name = "splash-time",
340 .type = QEMU_OPT_NUMBER,
341 }, {
342 .name = "reboot-timeout",
343 .type = QEMU_OPT_NUMBER,
344 }, {
345 .name = "strict",
346 .type = QEMU_OPT_BOOL,
347 },
348 { /*End of list */ }
349 },
350 };
351
352 static QemuOptsList qemu_add_fd_opts = {
353 .name = "add-fd",
354 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
355 .desc = {
356 {
357 .name = "fd",
358 .type = QEMU_OPT_NUMBER,
359 .help = "file descriptor of which a duplicate is added to fd set",
360 },{
361 .name = "set",
362 .type = QEMU_OPT_NUMBER,
363 .help = "ID of the fd set to add fd to",
364 },{
365 .name = "opaque",
366 .type = QEMU_OPT_STRING,
367 .help = "free-form string used to describe fd",
368 },
369 { /* end of list */ }
370 },
371 };
372
373 static QemuOptsList qemu_object_opts = {
374 .name = "object",
375 .implied_opt_name = "qom-type",
376 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
377 .desc = {
378 { }
379 },
380 };
381
382 static QemuOptsList qemu_tpmdev_opts = {
383 .name = "tpmdev",
384 .implied_opt_name = "type",
385 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
386 .desc = {
387 /* options are defined in the TPM backends */
388 { /* end of list */ }
389 },
390 };
391
392 static QemuOptsList qemu_realtime_opts = {
393 .name = "realtime",
394 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
395 .desc = {
396 {
397 .name = "mlock",
398 .type = QEMU_OPT_BOOL,
399 },
400 { /* end of list */ }
401 },
402 };
403
404 static QemuOptsList qemu_overcommit_opts = {
405 .name = "overcommit",
406 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
407 .desc = {
408 {
409 .name = "mem-lock",
410 .type = QEMU_OPT_BOOL,
411 },
412 {
413 .name = "cpu-pm",
414 .type = QEMU_OPT_BOOL,
415 },
416 { /* end of list */ }
417 },
418 };
419
420 static QemuOptsList qemu_msg_opts = {
421 .name = "msg",
422 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
423 .desc = {
424 {
425 .name = "timestamp",
426 .type = QEMU_OPT_BOOL,
427 },
428 { /* end of list */ }
429 },
430 };
431
432 static QemuOptsList qemu_name_opts = {
433 .name = "name",
434 .implied_opt_name = "guest",
435 .merge_lists = true,
436 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
437 .desc = {
438 {
439 .name = "guest",
440 .type = QEMU_OPT_STRING,
441 .help = "Sets the name of the guest.\n"
442 "This name will be displayed in the SDL window caption.\n"
443 "The name will also be used for the VNC server",
444 }, {
445 .name = "process",
446 .type = QEMU_OPT_STRING,
447 .help = "Sets the name of the QEMU process, as shown in top etc",
448 }, {
449 .name = "debug-threads",
450 .type = QEMU_OPT_BOOL,
451 .help = "When enabled, name the individual threads; defaults off.\n"
452 "NOTE: The thread names are for debugging and not a\n"
453 "stable API.",
454 },
455 { /* End of list */ }
456 },
457 };
458
459 static QemuOptsList qemu_mem_opts = {
460 .name = "memory",
461 .implied_opt_name = "size",
462 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
463 .merge_lists = true,
464 .desc = {
465 {
466 .name = "size",
467 .type = QEMU_OPT_SIZE,
468 },
469 {
470 .name = "slots",
471 .type = QEMU_OPT_NUMBER,
472 },
473 {
474 .name = "maxmem",
475 .type = QEMU_OPT_SIZE,
476 },
477 { /* end of list */ }
478 },
479 };
480
481 static QemuOptsList qemu_icount_opts = {
482 .name = "icount",
483 .implied_opt_name = "shift",
484 .merge_lists = true,
485 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
486 .desc = {
487 {
488 .name = "shift",
489 .type = QEMU_OPT_STRING,
490 }, {
491 .name = "align",
492 .type = QEMU_OPT_BOOL,
493 }, {
494 .name = "sleep",
495 .type = QEMU_OPT_BOOL,
496 }, {
497 .name = "rr",
498 .type = QEMU_OPT_STRING,
499 }, {
500 .name = "rrfile",
501 .type = QEMU_OPT_STRING,
502 }, {
503 .name = "rrsnapshot",
504 .type = QEMU_OPT_STRING,
505 },
506 { /* end of list */ }
507 },
508 };
509
510 static QemuOptsList qemu_semihosting_config_opts = {
511 .name = "semihosting-config",
512 .implied_opt_name = "enable",
513 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
514 .desc = {
515 {
516 .name = "enable",
517 .type = QEMU_OPT_BOOL,
518 }, {
519 .name = "target",
520 .type = QEMU_OPT_STRING,
521 }, {
522 .name = "arg",
523 .type = QEMU_OPT_STRING,
524 },
525 { /* end of list */ }
526 },
527 };
528
529 static QemuOptsList qemu_fw_cfg_opts = {
530 .name = "fw_cfg",
531 .implied_opt_name = "name",
532 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
533 .desc = {
534 {
535 .name = "name",
536 .type = QEMU_OPT_STRING,
537 .help = "Sets the fw_cfg name of the blob to be inserted",
538 }, {
539 .name = "file",
540 .type = QEMU_OPT_STRING,
541 .help = "Sets the name of the file from which "
542 "the fw_cfg blob will be loaded",
543 }, {
544 .name = "string",
545 .type = QEMU_OPT_STRING,
546 .help = "Sets content of the blob to be inserted from a string",
547 },
548 { /* end of list */ }
549 },
550 };
551
552 /**
553 * Get machine options
554 *
555 * Returns: machine options (never null).
556 */
557 QemuOpts *qemu_get_machine_opts(void)
558 {
559 return qemu_find_opts_singleton("machine");
560 }
561
562 const char *qemu_get_vm_name(void)
563 {
564 return qemu_name;
565 }
566
567 static void res_free(void)
568 {
569 g_free(boot_splash_filedata);
570 boot_splash_filedata = NULL;
571 }
572
573 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
574 {
575 const char *driver = qemu_opt_get(opts, "driver");
576 int i;
577
578 if (!driver)
579 return 0;
580 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
581 if (strcmp(default_list[i].driver, driver) != 0)
582 continue;
583 *(default_list[i].flag) = 0;
584 }
585 return 0;
586 }
587
588 /***********************************************************/
589 /* QEMU state */
590
591 static RunState current_run_state = RUN_STATE_PRECONFIG;
592
593 /* We use RUN_STATE__MAX but any invalid value will do */
594 static RunState vmstop_requested = RUN_STATE__MAX;
595 static QemuMutex vmstop_lock;
596
597 typedef struct {
598 RunState from;
599 RunState to;
600 } RunStateTransition;
601
602 static const RunStateTransition runstate_transitions_def[] = {
603 /* from -> to */
604 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
605 /* Early switch to inmigrate state to allow -incoming CLI option work
606 * as it used to. TODO: delay actual switching to inmigrate state to
607 * the point after machine is built and remove this hack.
608 */
609 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
610
611 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
612 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
613 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
614
615 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
616 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
617 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
618 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
619 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
620 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
621 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
622 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
623 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
624 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
625 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
626 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
627
628 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
629 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
630 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
631
632 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
633 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
635
636 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
637 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
638 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
639 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
640 { RUN_STATE_PAUSED, RUN_STATE_COLO},
641
642 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
643 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
645
646 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
647 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
648 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
649
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
652 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
653 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
654 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
655
656 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
657 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
658
659 { RUN_STATE_COLO, RUN_STATE_RUNNING },
660
661 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
662 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
663 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
664 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
665 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
666 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
667 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
668 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
669 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
670 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
671 { RUN_STATE_RUNNING, RUN_STATE_COLO},
672
673 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
674
675 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
676 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
677 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
678
679 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
680 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
681 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
682 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
683 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
684 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
685
686 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
687 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
688 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
689 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
690
691 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
692 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
693 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
694
695 { RUN_STATE__MAX, RUN_STATE__MAX },
696 };
697
698 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
699
700 bool runstate_check(RunState state)
701 {
702 return current_run_state == state;
703 }
704
705 bool runstate_store(char *str, size_t size)
706 {
707 const char *state = RunState_str(current_run_state);
708 size_t len = strlen(state) + 1;
709
710 if (len > size) {
711 return false;
712 }
713 memcpy(str, state, len);
714 return true;
715 }
716
717 static void runstate_init(void)
718 {
719 const RunStateTransition *p;
720
721 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
722 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
723 runstate_valid_transitions[p->from][p->to] = true;
724 }
725
726 qemu_mutex_init(&vmstop_lock);
727 }
728
729 /* This function will abort() on invalid state transitions */
730 void runstate_set(RunState new_state)
731 {
732 assert(new_state < RUN_STATE__MAX);
733
734 if (current_run_state == new_state) {
735 return;
736 }
737
738 if (!runstate_valid_transitions[current_run_state][new_state]) {
739 error_report("invalid runstate transition: '%s' -> '%s'",
740 RunState_str(current_run_state),
741 RunState_str(new_state));
742 abort();
743 }
744 trace_runstate_set(new_state);
745 current_run_state = new_state;
746 }
747
748 int runstate_is_running(void)
749 {
750 return runstate_check(RUN_STATE_RUNNING);
751 }
752
753 bool runstate_needs_reset(void)
754 {
755 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
756 runstate_check(RUN_STATE_SHUTDOWN);
757 }
758
759 StatusInfo *qmp_query_status(Error **errp)
760 {
761 StatusInfo *info = g_malloc0(sizeof(*info));
762
763 info->running = runstate_is_running();
764 info->singlestep = singlestep;
765 info->status = current_run_state;
766
767 return info;
768 }
769
770 bool qemu_vmstop_requested(RunState *r)
771 {
772 qemu_mutex_lock(&vmstop_lock);
773 *r = vmstop_requested;
774 vmstop_requested = RUN_STATE__MAX;
775 qemu_mutex_unlock(&vmstop_lock);
776 return *r < RUN_STATE__MAX;
777 }
778
779 void qemu_system_vmstop_request_prepare(void)
780 {
781 qemu_mutex_lock(&vmstop_lock);
782 }
783
784 void qemu_system_vmstop_request(RunState state)
785 {
786 vmstop_requested = state;
787 qemu_mutex_unlock(&vmstop_lock);
788 qemu_notify_event();
789 }
790
791 /***********************************************************/
792 /* RTC reference time/date access */
793 static time_t qemu_ref_timedate(QEMUClockType clock)
794 {
795 time_t value = qemu_clock_get_ms(clock) / 1000;
796 switch (clock) {
797 case QEMU_CLOCK_REALTIME:
798 value -= rtc_realtime_clock_offset;
799 /* no break */
800 case QEMU_CLOCK_VIRTUAL:
801 value += rtc_ref_start_datetime;
802 break;
803 case QEMU_CLOCK_HOST:
804 if (rtc_base_type == RTC_BASE_DATETIME) {
805 value -= rtc_host_datetime_offset;
806 }
807 break;
808 default:
809 assert(0);
810 }
811 return value;
812 }
813
814 void qemu_get_timedate(struct tm *tm, int offset)
815 {
816 time_t ti = qemu_ref_timedate(rtc_clock);
817
818 ti += offset;
819
820 switch (rtc_base_type) {
821 case RTC_BASE_DATETIME:
822 case RTC_BASE_UTC:
823 gmtime_r(&ti, tm);
824 break;
825 case RTC_BASE_LOCALTIME:
826 localtime_r(&ti, tm);
827 break;
828 }
829 }
830
831 int qemu_timedate_diff(struct tm *tm)
832 {
833 time_t seconds;
834
835 switch (rtc_base_type) {
836 case RTC_BASE_DATETIME:
837 case RTC_BASE_UTC:
838 seconds = mktimegm(tm);
839 break;
840 case RTC_BASE_LOCALTIME:
841 {
842 struct tm tmp = *tm;
843 tmp.tm_isdst = -1; /* use timezone to figure it out */
844 seconds = mktime(&tmp);
845 break;
846 }
847 default:
848 abort();
849 }
850
851 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
852 }
853
854 static void configure_rtc_base_datetime(const char *startdate)
855 {
856 time_t rtc_start_datetime;
857 struct tm tm;
858
859 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
860 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
861 /* OK */
862 } else if (sscanf(startdate, "%d-%d-%d",
863 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
864 tm.tm_hour = 0;
865 tm.tm_min = 0;
866 tm.tm_sec = 0;
867 } else {
868 goto date_fail;
869 }
870 tm.tm_year -= 1900;
871 tm.tm_mon--;
872 rtc_start_datetime = mktimegm(&tm);
873 if (rtc_start_datetime == -1) {
874 date_fail:
875 error_report("invalid datetime format");
876 error_printf("valid formats: "
877 "'2006-06-17T16:01:21' or '2006-06-17'\n");
878 exit(1);
879 }
880 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
881 rtc_ref_start_datetime = rtc_start_datetime;
882 }
883
884 static void configure_rtc(QemuOpts *opts)
885 {
886 const char *value;
887
888 /* Set defaults */
889 rtc_clock = QEMU_CLOCK_HOST;
890 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
891 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
892
893 value = qemu_opt_get(opts, "base");
894 if (value) {
895 if (!strcmp(value, "utc")) {
896 rtc_base_type = RTC_BASE_UTC;
897 } else if (!strcmp(value, "localtime")) {
898 Error *blocker = NULL;
899 rtc_base_type = RTC_BASE_LOCALTIME;
900 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
901 "-rtc base=localtime");
902 replay_add_blocker(blocker);
903 } else {
904 rtc_base_type = RTC_BASE_DATETIME;
905 configure_rtc_base_datetime(value);
906 }
907 }
908 value = qemu_opt_get(opts, "clock");
909 if (value) {
910 if (!strcmp(value, "host")) {
911 rtc_clock = QEMU_CLOCK_HOST;
912 } else if (!strcmp(value, "rt")) {
913 rtc_clock = QEMU_CLOCK_REALTIME;
914 } else if (!strcmp(value, "vm")) {
915 rtc_clock = QEMU_CLOCK_VIRTUAL;
916 } else {
917 error_report("invalid option value '%s'", value);
918 exit(1);
919 }
920 }
921 value = qemu_opt_get(opts, "driftfix");
922 if (value) {
923 if (!strcmp(value, "slew")) {
924 static GlobalProperty slew_lost_ticks = {
925 .driver = "mc146818rtc",
926 .property = "lost_tick_policy",
927 .value = "slew",
928 };
929
930 qdev_prop_register_global(&slew_lost_ticks);
931 } else if (!strcmp(value, "none")) {
932 /* discard is default */
933 } else {
934 error_report("invalid option value '%s'", value);
935 exit(1);
936 }
937 }
938 }
939
940 /***********************************************************/
941 /* Bluetooth support */
942 static int nb_hcis;
943 static int cur_hci;
944 static struct HCIInfo *hci_table[MAX_NICS];
945
946 struct HCIInfo *qemu_next_hci(void)
947 {
948 if (cur_hci == nb_hcis)
949 return &null_hci;
950
951 return hci_table[cur_hci++];
952 }
953
954 static int bt_hci_parse(const char *str)
955 {
956 struct HCIInfo *hci;
957 bdaddr_t bdaddr;
958
959 if (nb_hcis >= MAX_NICS) {
960 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
961 return -1;
962 }
963
964 hci = hci_init(str);
965 if (!hci)
966 return -1;
967
968 bdaddr.b[0] = 0x52;
969 bdaddr.b[1] = 0x54;
970 bdaddr.b[2] = 0x00;
971 bdaddr.b[3] = 0x12;
972 bdaddr.b[4] = 0x34;
973 bdaddr.b[5] = 0x56 + nb_hcis;
974 hci->bdaddr_set(hci, bdaddr.b);
975
976 hci_table[nb_hcis++] = hci;
977
978 return 0;
979 }
980
981 static void bt_vhci_add(int vlan_id)
982 {
983 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
984
985 if (!vlan->slave)
986 warn_report("adding a VHCI to an empty scatternet %i",
987 vlan_id);
988
989 bt_vhci_init(bt_new_hci(vlan));
990 }
991
992 static struct bt_device_s *bt_device_add(const char *opt)
993 {
994 struct bt_scatternet_s *vlan;
995 int vlan_id = 0;
996 char *endp = strstr(opt, ",vlan=");
997 int len = (endp ? endp - opt : strlen(opt)) + 1;
998 char devname[10];
999
1000 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1001
1002 if (endp) {
1003 vlan_id = strtol(endp + 6, &endp, 0);
1004 if (*endp) {
1005 error_report("unrecognised bluetooth vlan Id");
1006 return 0;
1007 }
1008 }
1009
1010 vlan = qemu_find_bt_vlan(vlan_id);
1011
1012 if (!vlan->slave)
1013 warn_report("adding a slave device to an empty scatternet %i",
1014 vlan_id);
1015
1016 if (!strcmp(devname, "keyboard"))
1017 return bt_keyboard_init(vlan);
1018
1019 error_report("unsupported bluetooth device '%s'", devname);
1020 return 0;
1021 }
1022
1023 static int bt_parse(const char *opt)
1024 {
1025 const char *endp, *p;
1026 int vlan;
1027
1028 if (strstart(opt, "hci", &endp)) {
1029 if (!*endp || *endp == ',') {
1030 if (*endp)
1031 if (!strstart(endp, ",vlan=", 0))
1032 opt = endp + 1;
1033
1034 return bt_hci_parse(opt);
1035 }
1036 } else if (strstart(opt, "vhci", &endp)) {
1037 if (!*endp || *endp == ',') {
1038 if (*endp) {
1039 if (strstart(endp, ",vlan=", &p)) {
1040 vlan = strtol(p, (char **) &endp, 0);
1041 if (*endp) {
1042 error_report("bad scatternet '%s'", p);
1043 return 1;
1044 }
1045 } else {
1046 error_report("bad parameter '%s'", endp + 1);
1047 return 1;
1048 }
1049 } else
1050 vlan = 0;
1051
1052 bt_vhci_add(vlan);
1053 return 0;
1054 }
1055 } else if (strstart(opt, "device:", &endp))
1056 return !bt_device_add(endp);
1057
1058 error_report("bad bluetooth parameter '%s'", opt);
1059 return 1;
1060 }
1061
1062 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1063 {
1064 const char *proc_name;
1065
1066 if (qemu_opt_get(opts, "debug-threads")) {
1067 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1068 }
1069 qemu_name = qemu_opt_get(opts, "guest");
1070
1071 proc_name = qemu_opt_get(opts, "process");
1072 if (proc_name) {
1073 os_set_proc_name(proc_name);
1074 }
1075
1076 return 0;
1077 }
1078
1079 bool defaults_enabled(void)
1080 {
1081 return has_defaults;
1082 }
1083
1084 #ifndef _WIN32
1085 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1086 {
1087 int fd, dupfd, flags;
1088 int64_t fdset_id;
1089 const char *fd_opaque = NULL;
1090 AddfdInfo *fdinfo;
1091
1092 fd = qemu_opt_get_number(opts, "fd", -1);
1093 fdset_id = qemu_opt_get_number(opts, "set", -1);
1094 fd_opaque = qemu_opt_get(opts, "opaque");
1095
1096 if (fd < 0) {
1097 error_setg(errp, "fd option is required and must be non-negative");
1098 return -1;
1099 }
1100
1101 if (fd <= STDERR_FILENO) {
1102 error_setg(errp, "fd cannot be a standard I/O stream");
1103 return -1;
1104 }
1105
1106 /*
1107 * All fds inherited across exec() necessarily have FD_CLOEXEC
1108 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1109 */
1110 flags = fcntl(fd, F_GETFD);
1111 if (flags == -1 || (flags & FD_CLOEXEC)) {
1112 error_setg(errp, "fd is not valid or already in use");
1113 return -1;
1114 }
1115
1116 if (fdset_id < 0) {
1117 error_setg(errp, "set option is required and must be non-negative");
1118 return -1;
1119 }
1120
1121 #ifdef F_DUPFD_CLOEXEC
1122 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1123 #else
1124 dupfd = dup(fd);
1125 if (dupfd != -1) {
1126 qemu_set_cloexec(dupfd);
1127 }
1128 #endif
1129 if (dupfd == -1) {
1130 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1131 return -1;
1132 }
1133
1134 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1135 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1136 &error_abort);
1137 g_free(fdinfo);
1138
1139 return 0;
1140 }
1141
1142 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1143 {
1144 int fd;
1145
1146 fd = qemu_opt_get_number(opts, "fd", -1);
1147 close(fd);
1148
1149 return 0;
1150 }
1151 #endif
1152
1153 /***********************************************************/
1154 /* QEMU Block devices */
1155
1156 #define HD_OPTS "media=disk"
1157 #define CDROM_OPTS "media=cdrom"
1158 #define FD_OPTS ""
1159 #define PFLASH_OPTS ""
1160 #define MTD_OPTS ""
1161 #define SD_OPTS ""
1162
1163 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1164 {
1165 BlockInterfaceType *block_default_type = opaque;
1166
1167 return drive_new(opts, *block_default_type, errp) == NULL;
1168 }
1169
1170 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1171 {
1172 if (qemu_opt_get(opts, "snapshot") == NULL) {
1173 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1174 }
1175 return 0;
1176 }
1177
1178 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1179 int index, const char *optstr)
1180 {
1181 QemuOpts *opts;
1182 DriveInfo *dinfo;
1183
1184 if (!enable || drive_get_by_index(type, index)) {
1185 return;
1186 }
1187
1188 opts = drive_add(type, index, NULL, optstr);
1189 if (snapshot) {
1190 drive_enable_snapshot(NULL, opts, NULL);
1191 }
1192
1193 dinfo = drive_new(opts, type, &error_abort);
1194 dinfo->is_default = true;
1195
1196 }
1197
1198 static QemuOptsList qemu_smp_opts = {
1199 .name = "smp-opts",
1200 .implied_opt_name = "cpus",
1201 .merge_lists = true,
1202 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1203 .desc = {
1204 {
1205 .name = "cpus",
1206 .type = QEMU_OPT_NUMBER,
1207 }, {
1208 .name = "sockets",
1209 .type = QEMU_OPT_NUMBER,
1210 }, {
1211 .name = "cores",
1212 .type = QEMU_OPT_NUMBER,
1213 }, {
1214 .name = "threads",
1215 .type = QEMU_OPT_NUMBER,
1216 }, {
1217 .name = "maxcpus",
1218 .type = QEMU_OPT_NUMBER,
1219 },
1220 { /*End of list */ }
1221 },
1222 };
1223
1224 static void smp_parse(QemuOpts *opts)
1225 {
1226 if (opts) {
1227 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1228 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1229 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1230 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1231
1232 /* compute missing values, prefer sockets over cores over threads */
1233 if (cpus == 0 || sockets == 0) {
1234 cores = cores > 0 ? cores : 1;
1235 threads = threads > 0 ? threads : 1;
1236 if (cpus == 0) {
1237 sockets = sockets > 0 ? sockets : 1;
1238 cpus = cores * threads * sockets;
1239 } else {
1240 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1241 sockets = max_cpus / (cores * threads);
1242 }
1243 } else if (cores == 0) {
1244 threads = threads > 0 ? threads : 1;
1245 cores = cpus / (sockets * threads);
1246 cores = cores > 0 ? cores : 1;
1247 } else if (threads == 0) {
1248 threads = cpus / (cores * sockets);
1249 threads = threads > 0 ? threads : 1;
1250 } else if (sockets * cores * threads < cpus) {
1251 error_report("cpu topology: "
1252 "sockets (%u) * cores (%u) * threads (%u) < "
1253 "smp_cpus (%u)",
1254 sockets, cores, threads, cpus);
1255 exit(1);
1256 }
1257
1258 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1259
1260 if (max_cpus < cpus) {
1261 error_report("maxcpus must be equal to or greater than smp");
1262 exit(1);
1263 }
1264
1265 if (sockets * cores * threads > max_cpus) {
1266 error_report("cpu topology: "
1267 "sockets (%u) * cores (%u) * threads (%u) > "
1268 "maxcpus (%u)",
1269 sockets, cores, threads, max_cpus);
1270 exit(1);
1271 }
1272
1273 if (sockets * cores * threads != max_cpus) {
1274 warn_report("Invalid CPU topology deprecated: "
1275 "sockets (%u) * cores (%u) * threads (%u) "
1276 "!= maxcpus (%u)",
1277 sockets, cores, threads, max_cpus);
1278 }
1279
1280 smp_cpus = cpus;
1281 smp_cores = cores;
1282 smp_threads = threads;
1283 }
1284
1285 if (smp_cpus > 1) {
1286 Error *blocker = NULL;
1287 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1288 replay_add_blocker(blocker);
1289 }
1290 }
1291
1292 static void realtime_init(void)
1293 {
1294 if (enable_mlock) {
1295 if (os_mlock() < 0) {
1296 error_report("locking memory failed");
1297 exit(1);
1298 }
1299 }
1300 }
1301
1302
1303 static void configure_msg(QemuOpts *opts)
1304 {
1305 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1306 }
1307
1308 /***********************************************************/
1309 /* Semihosting */
1310
1311 typedef struct SemihostingConfig {
1312 bool enabled;
1313 SemihostingTarget target;
1314 const char **argv;
1315 int argc;
1316 const char *cmdline; /* concatenated argv */
1317 } SemihostingConfig;
1318
1319 static SemihostingConfig semihosting;
1320
1321 bool semihosting_enabled(void)
1322 {
1323 return semihosting.enabled;
1324 }
1325
1326 SemihostingTarget semihosting_get_target(void)
1327 {
1328 return semihosting.target;
1329 }
1330
1331 const char *semihosting_get_arg(int i)
1332 {
1333 if (i >= semihosting.argc) {
1334 return NULL;
1335 }
1336 return semihosting.argv[i];
1337 }
1338
1339 int semihosting_get_argc(void)
1340 {
1341 return semihosting.argc;
1342 }
1343
1344 const char *semihosting_get_cmdline(void)
1345 {
1346 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1347 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1348 }
1349 return semihosting.cmdline;
1350 }
1351
1352 static int add_semihosting_arg(void *opaque,
1353 const char *name, const char *val,
1354 Error **errp)
1355 {
1356 SemihostingConfig *s = opaque;
1357 if (strcmp(name, "arg") == 0) {
1358 s->argc++;
1359 /* one extra element as g_strjoinv() expects NULL-terminated array */
1360 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1361 s->argv[s->argc - 1] = val;
1362 s->argv[s->argc] = NULL;
1363 }
1364 return 0;
1365 }
1366
1367 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1368 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1369 {
1370 char *cmd_token;
1371
1372 /* argv[0] */
1373 add_semihosting_arg(&semihosting, "arg", file, NULL);
1374
1375 /* split -append and initialize argv[1..n] */
1376 cmd_token = strtok(g_strdup(cmd), " ");
1377 while (cmd_token) {
1378 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1379 cmd_token = strtok(NULL, " ");
1380 }
1381 }
1382
1383 /* Now we still need this for compatibility with XEN. */
1384 bool has_igd_gfx_passthru;
1385 static void igd_gfx_passthru(void)
1386 {
1387 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1388 }
1389
1390 /***********************************************************/
1391 /* USB devices */
1392
1393 static int usb_device_add(const char *devname)
1394 {
1395 USBDevice *dev = NULL;
1396
1397 if (!machine_usb(current_machine)) {
1398 return -1;
1399 }
1400
1401 dev = usbdevice_create(devname);
1402 if (!dev)
1403 return -1;
1404
1405 return 0;
1406 }
1407
1408 static int usb_parse(const char *cmdline)
1409 {
1410 int r;
1411 r = usb_device_add(cmdline);
1412 if (r < 0) {
1413 error_report("could not add USB device '%s'", cmdline);
1414 }
1415 return r;
1416 }
1417
1418 /***********************************************************/
1419 /* machine registration */
1420
1421 MachineState *current_machine;
1422
1423 static MachineClass *find_machine(const char *name)
1424 {
1425 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1426 MachineClass *mc = NULL;
1427
1428 for (el = machines; el; el = el->next) {
1429 MachineClass *temp = el->data;
1430
1431 if (!strcmp(temp->name, name)) {
1432 mc = temp;
1433 break;
1434 }
1435 if (temp->alias &&
1436 !strcmp(temp->alias, name)) {
1437 mc = temp;
1438 break;
1439 }
1440 }
1441
1442 g_slist_free(machines);
1443 return mc;
1444 }
1445
1446 MachineClass *find_default_machine(void)
1447 {
1448 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1449 MachineClass *mc = NULL;
1450
1451 for (el = machines; el; el = el->next) {
1452 MachineClass *temp = el->data;
1453
1454 if (temp->is_default) {
1455 mc = temp;
1456 break;
1457 }
1458 }
1459
1460 g_slist_free(machines);
1461 return mc;
1462 }
1463
1464 MachineInfoList *qmp_query_machines(Error **errp)
1465 {
1466 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1467 MachineInfoList *mach_list = NULL;
1468
1469 for (el = machines; el; el = el->next) {
1470 MachineClass *mc = el->data;
1471 MachineInfoList *entry;
1472 MachineInfo *info;
1473
1474 info = g_malloc0(sizeof(*info));
1475 if (mc->is_default) {
1476 info->has_is_default = true;
1477 info->is_default = true;
1478 }
1479
1480 if (mc->alias) {
1481 info->has_alias = true;
1482 info->alias = g_strdup(mc->alias);
1483 }
1484
1485 info->name = g_strdup(mc->name);
1486 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1487 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1488
1489 entry = g_malloc0(sizeof(*entry));
1490 entry->value = info;
1491 entry->next = mach_list;
1492 mach_list = entry;
1493 }
1494
1495 g_slist_free(machines);
1496 return mach_list;
1497 }
1498
1499 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1500 {
1501 ObjectProperty *prop;
1502 ObjectPropertyIterator iter;
1503
1504 if (!qemu_opt_has_help_opt(opts)) {
1505 return 0;
1506 }
1507
1508 object_property_iter_init(&iter, OBJECT(machine));
1509 while ((prop = object_property_iter_next(&iter))) {
1510 if (!prop->set) {
1511 continue;
1512 }
1513
1514 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1515 prop->name, prop->type);
1516 if (prop->description) {
1517 error_printf(" (%s)\n", prop->description);
1518 } else {
1519 error_printf("\n");
1520 }
1521 }
1522
1523 return 1;
1524 }
1525
1526 struct vm_change_state_entry {
1527 VMChangeStateHandler *cb;
1528 void *opaque;
1529 QLIST_ENTRY (vm_change_state_entry) entries;
1530 };
1531
1532 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1533
1534 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1535 void *opaque)
1536 {
1537 VMChangeStateEntry *e;
1538
1539 e = g_malloc0(sizeof (*e));
1540
1541 e->cb = cb;
1542 e->opaque = opaque;
1543 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1544 return e;
1545 }
1546
1547 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1548 {
1549 QLIST_REMOVE (e, entries);
1550 g_free (e);
1551 }
1552
1553 void vm_state_notify(int running, RunState state)
1554 {
1555 VMChangeStateEntry *e, *next;
1556
1557 trace_vm_state_notify(running, state);
1558
1559 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1560 e->cb(e->opaque, running, state);
1561 }
1562 }
1563
1564 static ShutdownCause reset_requested;
1565 static ShutdownCause shutdown_requested;
1566 static int shutdown_signal;
1567 static pid_t shutdown_pid;
1568 static int powerdown_requested;
1569 static int debug_requested;
1570 static int suspend_requested;
1571 static bool preconfig_exit_requested = true;
1572 static WakeupReason wakeup_reason;
1573 static NotifierList powerdown_notifiers =
1574 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1575 static NotifierList suspend_notifiers =
1576 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1577 static NotifierList wakeup_notifiers =
1578 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1579 static NotifierList shutdown_notifiers =
1580 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1581 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1582
1583 ShutdownCause qemu_shutdown_requested_get(void)
1584 {
1585 return shutdown_requested;
1586 }
1587
1588 ShutdownCause qemu_reset_requested_get(void)
1589 {
1590 return reset_requested;
1591 }
1592
1593 static int qemu_shutdown_requested(void)
1594 {
1595 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1596 }
1597
1598 static void qemu_kill_report(void)
1599 {
1600 if (!qtest_driver() && shutdown_signal) {
1601 if (shutdown_pid == 0) {
1602 /* This happens for eg ^C at the terminal, so it's worth
1603 * avoiding printing an odd message in that case.
1604 */
1605 error_report("terminating on signal %d", shutdown_signal);
1606 } else {
1607 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1608
1609 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1610 shutdown_signal, shutdown_pid,
1611 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1612 g_free(shutdown_cmd);
1613 }
1614 shutdown_signal = 0;
1615 }
1616 }
1617
1618 static ShutdownCause qemu_reset_requested(void)
1619 {
1620 ShutdownCause r = reset_requested;
1621
1622 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1623 reset_requested = SHUTDOWN_CAUSE_NONE;
1624 return r;
1625 }
1626 return SHUTDOWN_CAUSE_NONE;
1627 }
1628
1629 static int qemu_suspend_requested(void)
1630 {
1631 int r = suspend_requested;
1632 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1633 suspend_requested = 0;
1634 return r;
1635 }
1636 return false;
1637 }
1638
1639 static WakeupReason qemu_wakeup_requested(void)
1640 {
1641 return wakeup_reason;
1642 }
1643
1644 static int qemu_powerdown_requested(void)
1645 {
1646 int r = powerdown_requested;
1647 powerdown_requested = 0;
1648 return r;
1649 }
1650
1651 static int qemu_debug_requested(void)
1652 {
1653 int r = debug_requested;
1654 debug_requested = 0;
1655 return r;
1656 }
1657
1658 void qemu_exit_preconfig_request(void)
1659 {
1660 preconfig_exit_requested = true;
1661 }
1662
1663 /*
1664 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1665 */
1666 void qemu_system_reset(ShutdownCause reason)
1667 {
1668 MachineClass *mc;
1669
1670 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1671
1672 cpu_synchronize_all_states();
1673
1674 if (mc && mc->reset) {
1675 mc->reset();
1676 } else {
1677 qemu_devices_reset();
1678 }
1679 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1680 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1681 }
1682 cpu_synchronize_all_post_reset();
1683 }
1684
1685 void qemu_system_guest_panicked(GuestPanicInformation *info)
1686 {
1687 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1688
1689 if (current_cpu) {
1690 current_cpu->crash_occurred = true;
1691 }
1692 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1693 !!info, info);
1694 vm_stop(RUN_STATE_GUEST_PANICKED);
1695 if (!no_shutdown) {
1696 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1697 !!info, info);
1698 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1699 }
1700
1701 if (info) {
1702 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1703 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1704 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1705 info->u.hyper_v.arg1,
1706 info->u.hyper_v.arg2,
1707 info->u.hyper_v.arg3,
1708 info->u.hyper_v.arg4,
1709 info->u.hyper_v.arg5);
1710 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1711 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1712 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1713 info->u.s390.core,
1714 S390CrashReason_str(info->u.s390.reason),
1715 info->u.s390.psw_mask,
1716 info->u.s390.psw_addr);
1717 }
1718 qapi_free_GuestPanicInformation(info);
1719 }
1720 }
1721
1722 void qemu_system_reset_request(ShutdownCause reason)
1723 {
1724 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1725 shutdown_requested = reason;
1726 } else {
1727 reset_requested = reason;
1728 }
1729 cpu_stop_current();
1730 qemu_notify_event();
1731 }
1732
1733 static void qemu_system_suspend(void)
1734 {
1735 pause_all_vcpus();
1736 notifier_list_notify(&suspend_notifiers, NULL);
1737 runstate_set(RUN_STATE_SUSPENDED);
1738 qapi_event_send_suspend();
1739 }
1740
1741 void qemu_system_suspend_request(void)
1742 {
1743 if (runstate_check(RUN_STATE_SUSPENDED)) {
1744 return;
1745 }
1746 suspend_requested = 1;
1747 cpu_stop_current();
1748 qemu_notify_event();
1749 }
1750
1751 void qemu_register_suspend_notifier(Notifier *notifier)
1752 {
1753 notifier_list_add(&suspend_notifiers, notifier);
1754 }
1755
1756 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1757 {
1758 trace_system_wakeup_request(reason);
1759
1760 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1761 error_setg(errp,
1762 "Unable to wake up: guest is not in suspended state");
1763 return;
1764 }
1765 if (!(wakeup_reason_mask & (1 << reason))) {
1766 return;
1767 }
1768 runstate_set(RUN_STATE_RUNNING);
1769 wakeup_reason = reason;
1770 qemu_notify_event();
1771 }
1772
1773 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1774 {
1775 if (enabled) {
1776 wakeup_reason_mask |= (1 << reason);
1777 } else {
1778 wakeup_reason_mask &= ~(1 << reason);
1779 }
1780 }
1781
1782 void qemu_register_wakeup_notifier(Notifier *notifier)
1783 {
1784 notifier_list_add(&wakeup_notifiers, notifier);
1785 }
1786
1787 void qemu_register_wakeup_support(void)
1788 {
1789 wakeup_suspend_enabled = true;
1790 }
1791
1792 bool qemu_wakeup_suspend_enabled(void)
1793 {
1794 return wakeup_suspend_enabled;
1795 }
1796
1797 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1798 {
1799 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1800 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1801
1802 return params;
1803 }
1804
1805 void qemu_system_killed(int signal, pid_t pid)
1806 {
1807 shutdown_signal = signal;
1808 shutdown_pid = pid;
1809 no_shutdown = 0;
1810
1811 /* Cannot call qemu_system_shutdown_request directly because
1812 * we are in a signal handler.
1813 */
1814 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1815 qemu_notify_event();
1816 }
1817
1818 void qemu_system_shutdown_request(ShutdownCause reason)
1819 {
1820 trace_qemu_system_shutdown_request(reason);
1821 replay_shutdown_request(reason);
1822 shutdown_requested = reason;
1823 qemu_notify_event();
1824 }
1825
1826 static void qemu_system_powerdown(void)
1827 {
1828 qapi_event_send_powerdown();
1829 notifier_list_notify(&powerdown_notifiers, NULL);
1830 }
1831
1832 static void qemu_system_shutdown(ShutdownCause cause)
1833 {
1834 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1835 notifier_list_notify(&shutdown_notifiers, &cause);
1836 }
1837
1838 void qemu_system_powerdown_request(void)
1839 {
1840 trace_qemu_system_powerdown_request();
1841 powerdown_requested = 1;
1842 qemu_notify_event();
1843 }
1844
1845 void qemu_register_powerdown_notifier(Notifier *notifier)
1846 {
1847 notifier_list_add(&powerdown_notifiers, notifier);
1848 }
1849
1850 void qemu_register_shutdown_notifier(Notifier *notifier)
1851 {
1852 notifier_list_add(&shutdown_notifiers, notifier);
1853 }
1854
1855 void qemu_system_debug_request(void)
1856 {
1857 debug_requested = 1;
1858 qemu_notify_event();
1859 }
1860
1861 static bool main_loop_should_exit(void)
1862 {
1863 RunState r;
1864 ShutdownCause request;
1865
1866 if (preconfig_exit_requested) {
1867 if (runstate_check(RUN_STATE_PRECONFIG)) {
1868 runstate_set(RUN_STATE_PRELAUNCH);
1869 }
1870 preconfig_exit_requested = false;
1871 return true;
1872 }
1873 if (qemu_debug_requested()) {
1874 vm_stop(RUN_STATE_DEBUG);
1875 }
1876 if (qemu_suspend_requested()) {
1877 qemu_system_suspend();
1878 }
1879 request = qemu_shutdown_requested();
1880 if (request) {
1881 qemu_kill_report();
1882 qemu_system_shutdown(request);
1883 if (no_shutdown) {
1884 vm_stop(RUN_STATE_SHUTDOWN);
1885 } else {
1886 return true;
1887 }
1888 }
1889 request = qemu_reset_requested();
1890 if (request) {
1891 pause_all_vcpus();
1892 qemu_system_reset(request);
1893 resume_all_vcpus();
1894 if (!runstate_check(RUN_STATE_RUNNING) &&
1895 !runstate_check(RUN_STATE_INMIGRATE)) {
1896 runstate_set(RUN_STATE_PRELAUNCH);
1897 }
1898 }
1899 if (qemu_wakeup_requested()) {
1900 pause_all_vcpus();
1901 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1902 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1903 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1904 resume_all_vcpus();
1905 qapi_event_send_wakeup();
1906 }
1907 if (qemu_powerdown_requested()) {
1908 qemu_system_powerdown();
1909 }
1910 if (qemu_vmstop_requested(&r)) {
1911 vm_stop(r);
1912 }
1913 return false;
1914 }
1915
1916 static void main_loop(void)
1917 {
1918 #ifdef CONFIG_PROFILER
1919 int64_t ti;
1920 #endif
1921 while (!main_loop_should_exit()) {
1922 #ifdef CONFIG_PROFILER
1923 ti = profile_getclock();
1924 #endif
1925 main_loop_wait(false);
1926 #ifdef CONFIG_PROFILER
1927 dev_time += profile_getclock() - ti;
1928 #endif
1929 }
1930 }
1931
1932 static void version(void)
1933 {
1934 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1935 QEMU_COPYRIGHT "\n");
1936 }
1937
1938 static void help(int exitcode)
1939 {
1940 version();
1941 printf("usage: %s [options] [disk_image]\n\n"
1942 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1943 error_get_progname());
1944
1945 #define QEMU_OPTIONS_GENERATE_HELP
1946 #include "qemu-options-wrapper.h"
1947
1948 printf("\nDuring emulation, the following keys are useful:\n"
1949 "ctrl-alt-f toggle full screen\n"
1950 "ctrl-alt-n switch to virtual console 'n'\n"
1951 "ctrl-alt toggle mouse and keyboard grab\n"
1952 "\n"
1953 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1954 "\n"
1955 QEMU_HELP_BOTTOM "\n");
1956
1957 exit(exitcode);
1958 }
1959
1960 #define HAS_ARG 0x0001
1961
1962 typedef struct QEMUOption {
1963 const char *name;
1964 int flags;
1965 int index;
1966 uint32_t arch_mask;
1967 } QEMUOption;
1968
1969 static const QEMUOption qemu_options[] = {
1970 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1971 #define QEMU_OPTIONS_GENERATE_OPTIONS
1972 #include "qemu-options-wrapper.h"
1973 { NULL },
1974 };
1975
1976 typedef struct VGAInterfaceInfo {
1977 const char *opt_name; /* option name */
1978 const char *name; /* human-readable name */
1979 /* Class names indicating that support is available.
1980 * If no class is specified, the interface is always available */
1981 const char *class_names[2];
1982 } VGAInterfaceInfo;
1983
1984 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1985 [VGA_NONE] = {
1986 .opt_name = "none",
1987 },
1988 [VGA_STD] = {
1989 .opt_name = "std",
1990 .name = "standard VGA",
1991 .class_names = { "VGA", "isa-vga" },
1992 },
1993 [VGA_CIRRUS] = {
1994 .opt_name = "cirrus",
1995 .name = "Cirrus VGA",
1996 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1997 },
1998 [VGA_VMWARE] = {
1999 .opt_name = "vmware",
2000 .name = "VMWare SVGA",
2001 .class_names = { "vmware-svga" },
2002 },
2003 [VGA_VIRTIO] = {
2004 .opt_name = "virtio",
2005 .name = "Virtio VGA",
2006 .class_names = { "virtio-vga" },
2007 },
2008 [VGA_QXL] = {
2009 .opt_name = "qxl",
2010 .name = "QXL VGA",
2011 .class_names = { "qxl-vga" },
2012 },
2013 [VGA_TCX] = {
2014 .opt_name = "tcx",
2015 .name = "TCX framebuffer",
2016 .class_names = { "SUNW,tcx" },
2017 },
2018 [VGA_CG3] = {
2019 .opt_name = "cg3",
2020 .name = "CG3 framebuffer",
2021 .class_names = { "cgthree" },
2022 },
2023 [VGA_XENFB] = {
2024 .opt_name = "xenfb",
2025 },
2026 };
2027
2028 static bool vga_interface_available(VGAInterfaceType t)
2029 {
2030 VGAInterfaceInfo *ti = &vga_interfaces[t];
2031
2032 assert(t < VGA_TYPE_MAX);
2033 return !ti->class_names[0] ||
2034 object_class_by_name(ti->class_names[0]) ||
2035 object_class_by_name(ti->class_names[1]);
2036 }
2037
2038 static void select_vgahw(const char *p)
2039 {
2040 const char *opts;
2041 int t;
2042
2043 assert(vga_interface_type == VGA_NONE);
2044 for (t = 0; t < VGA_TYPE_MAX; t++) {
2045 VGAInterfaceInfo *ti = &vga_interfaces[t];
2046 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2047 if (!vga_interface_available(t)) {
2048 error_report("%s not available", ti->name);
2049 exit(1);
2050 }
2051 vga_interface_type = t;
2052 break;
2053 }
2054 }
2055 if (t == VGA_TYPE_MAX) {
2056 invalid_vga:
2057 error_report("unknown vga type: %s", p);
2058 exit(1);
2059 }
2060 while (*opts) {
2061 const char *nextopt;
2062
2063 if (strstart(opts, ",retrace=", &nextopt)) {
2064 opts = nextopt;
2065 if (strstart(opts, "dumb", &nextopt))
2066 vga_retrace_method = VGA_RETRACE_DUMB;
2067 else if (strstart(opts, "precise", &nextopt))
2068 vga_retrace_method = VGA_RETRACE_PRECISE;
2069 else goto invalid_vga;
2070 } else goto invalid_vga;
2071 opts = nextopt;
2072 }
2073 }
2074
2075 static void parse_display_qapi(const char *optarg)
2076 {
2077 DisplayOptions *opts;
2078 Visitor *v;
2079
2080 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2081
2082 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2083 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2084
2085 qapi_free_DisplayOptions(opts);
2086 visit_free(v);
2087 }
2088
2089 DisplayOptions *qmp_query_display_options(Error **errp)
2090 {
2091 return QAPI_CLONE(DisplayOptions, &dpy);
2092 }
2093
2094 static void parse_display(const char *p)
2095 {
2096 const char *opts;
2097
2098 if (strstart(p, "sdl", &opts)) {
2099 /*
2100 * sdl DisplayType needs hand-crafted parser instead of
2101 * parse_display_qapi() due to some options not in
2102 * DisplayOptions, specifically:
2103 * - frame
2104 * Already deprecated.
2105 * - ctrl_grab + alt_grab
2106 * Not clear yet what happens to them long-term. Should
2107 * replaced by something better or deprecated and dropped.
2108 */
2109 dpy.type = DISPLAY_TYPE_SDL;
2110 while (*opts) {
2111 const char *nextopt;
2112
2113 if (strstart(opts, ",frame=", &nextopt)) {
2114 g_printerr("The frame= sdl option is deprecated, and will be\n"
2115 "removed in a future release.\n");
2116 opts = nextopt;
2117 if (strstart(opts, "on", &nextopt)) {
2118 no_frame = 0;
2119 } else if (strstart(opts, "off", &nextopt)) {
2120 no_frame = 1;
2121 } else {
2122 goto invalid_sdl_args;
2123 }
2124 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2125 opts = nextopt;
2126 if (strstart(opts, "on", &nextopt)) {
2127 alt_grab = 1;
2128 } else if (strstart(opts, "off", &nextopt)) {
2129 alt_grab = 0;
2130 } else {
2131 goto invalid_sdl_args;
2132 }
2133 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2134 opts = nextopt;
2135 if (strstart(opts, "on", &nextopt)) {
2136 ctrl_grab = 1;
2137 } else if (strstart(opts, "off", &nextopt)) {
2138 ctrl_grab = 0;
2139 } else {
2140 goto invalid_sdl_args;
2141 }
2142 } else if (strstart(opts, ",window_close=", &nextopt)) {
2143 opts = nextopt;
2144 dpy.has_window_close = true;
2145 if (strstart(opts, "on", &nextopt)) {
2146 dpy.window_close = true;
2147 } else if (strstart(opts, "off", &nextopt)) {
2148 dpy.window_close = false;
2149 } else {
2150 goto invalid_sdl_args;
2151 }
2152 } else if (strstart(opts, ",gl=", &nextopt)) {
2153 opts = nextopt;
2154 dpy.has_gl = true;
2155 if (strstart(opts, "on", &nextopt)) {
2156 dpy.gl = DISPLAYGL_MODE_ON;
2157 } else if (strstart(opts, "core", &nextopt)) {
2158 dpy.gl = DISPLAYGL_MODE_CORE;
2159 } else if (strstart(opts, "es", &nextopt)) {
2160 dpy.gl = DISPLAYGL_MODE_ES;
2161 } else if (strstart(opts, "off", &nextopt)) {
2162 dpy.gl = DISPLAYGL_MODE_OFF;
2163 } else {
2164 goto invalid_sdl_args;
2165 }
2166 } else {
2167 invalid_sdl_args:
2168 error_report("invalid SDL option string");
2169 exit(1);
2170 }
2171 opts = nextopt;
2172 }
2173 } else if (strstart(p, "vnc", &opts)) {
2174 /*
2175 * vnc isn't a (local) DisplayType but a protocol for remote
2176 * display access.
2177 */
2178 if (*opts == '=') {
2179 vnc_parse(opts + 1, &error_fatal);
2180 } else {
2181 error_report("VNC requires a display argument vnc=<display>");
2182 exit(1);
2183 }
2184 } else {
2185 parse_display_qapi(p);
2186 }
2187 }
2188
2189 char *qemu_find_file(int type, const char *name)
2190 {
2191 int i;
2192 const char *subdir;
2193 char *buf;
2194
2195 /* Try the name as a straight path first */
2196 if (access(name, R_OK) == 0) {
2197 trace_load_file(name, name);
2198 return g_strdup(name);
2199 }
2200
2201 switch (type) {
2202 case QEMU_FILE_TYPE_BIOS:
2203 subdir = "";
2204 break;
2205 case QEMU_FILE_TYPE_KEYMAP:
2206 subdir = "keymaps/";
2207 break;
2208 default:
2209 abort();
2210 }
2211
2212 for (i = 0; i < data_dir_idx; i++) {
2213 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2214 if (access(buf, R_OK) == 0) {
2215 trace_load_file(name, buf);
2216 return buf;
2217 }
2218 g_free(buf);
2219 }
2220 return NULL;
2221 }
2222
2223 static void qemu_add_data_dir(const char *path)
2224 {
2225 int i;
2226
2227 if (path == NULL) {
2228 return;
2229 }
2230 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2231 return;
2232 }
2233 for (i = 0; i < data_dir_idx; i++) {
2234 if (strcmp(data_dir[i], path) == 0) {
2235 return; /* duplicate */
2236 }
2237 }
2238 data_dir[data_dir_idx++] = g_strdup(path);
2239 }
2240
2241 static inline bool nonempty_str(const char *str)
2242 {
2243 return str && *str;
2244 }
2245
2246 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2247 {
2248 gchar *buf;
2249 size_t size;
2250 const char *name, *file, *str;
2251 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2252
2253 if (fw_cfg == NULL) {
2254 error_setg(errp, "fw_cfg device not available");
2255 return -1;
2256 }
2257 name = qemu_opt_get(opts, "name");
2258 file = qemu_opt_get(opts, "file");
2259 str = qemu_opt_get(opts, "string");
2260
2261 /* we need name and either a file or the content string */
2262 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2263 error_setg(errp, "invalid argument(s)");
2264 return -1;
2265 }
2266 if (nonempty_str(file) && nonempty_str(str)) {
2267 error_setg(errp, "file and string are mutually exclusive");
2268 return -1;
2269 }
2270 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2271 error_setg(errp, "name too long (max. %d char)",
2272 FW_CFG_MAX_FILE_PATH - 1);
2273 return -1;
2274 }
2275 if (strncmp(name, "opt/", 4) != 0) {
2276 warn_report("externally provided fw_cfg item names "
2277 "should be prefixed with \"opt/\"");
2278 }
2279 if (nonempty_str(str)) {
2280 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2281 buf = g_memdup(str, size);
2282 } else {
2283 GError *err = NULL;
2284 if (!g_file_get_contents(file, &buf, &size, &err)) {
2285 error_setg(errp, "can't load %s: %s", file, err->message);
2286 g_error_free(err);
2287 return -1;
2288 }
2289 }
2290 /* For legacy, keep user files in a specific global order. */
2291 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2292 fw_cfg_add_file(fw_cfg, name, buf, size);
2293 fw_cfg_reset_order_override(fw_cfg);
2294 return 0;
2295 }
2296
2297 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2298 {
2299 return qdev_device_help(opts);
2300 }
2301
2302 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2303 {
2304 DeviceState *dev;
2305
2306 dev = qdev_device_add(opts, errp);
2307 if (!dev) {
2308 return -1;
2309 }
2310 object_unref(OBJECT(dev));
2311 return 0;
2312 }
2313
2314 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2315 {
2316 Error *local_err = NULL;
2317
2318 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2319 if (local_err) {
2320 error_propagate(errp, local_err);
2321 return -1;
2322 }
2323 exit(0);
2324 }
2325 return 0;
2326 }
2327
2328 #ifdef CONFIG_VIRTFS
2329 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2330 {
2331 return qemu_fsdev_add(opts, errp);
2332 }
2333 #endif
2334
2335 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2336 {
2337 Chardev *chr;
2338 const char *chardev;
2339 const char *mode;
2340 int flags;
2341
2342 mode = qemu_opt_get(opts, "mode");
2343 if (mode == NULL) {
2344 mode = "readline";
2345 }
2346 if (strcmp(mode, "readline") == 0) {
2347 flags = MONITOR_USE_READLINE;
2348 } else if (strcmp(mode, "control") == 0) {
2349 flags = MONITOR_USE_CONTROL;
2350 } else {
2351 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2352 return -1;
2353 }
2354
2355 if (qemu_opt_get_bool(opts, "pretty", 0))
2356 flags |= MONITOR_USE_PRETTY;
2357
2358 chardev = qemu_opt_get(opts, "chardev");
2359 if (!chardev) {
2360 error_report("chardev is required");
2361 exit(1);
2362 }
2363 chr = qemu_chr_find(chardev);
2364 if (chr == NULL) {
2365 error_setg(errp, "chardev \"%s\" not found", chardev);
2366 return -1;
2367 }
2368
2369 monitor_init(chr, flags);
2370 return 0;
2371 }
2372
2373 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2374 {
2375 static int monitor_device_index = 0;
2376 QemuOpts *opts;
2377 const char *p;
2378 char label[32];
2379
2380 if (strstart(optarg, "chardev:", &p)) {
2381 snprintf(label, sizeof(label), "%s", p);
2382 } else {
2383 snprintf(label, sizeof(label), "compat_monitor%d",
2384 monitor_device_index);
2385 opts = qemu_chr_parse_compat(label, optarg, true);
2386 if (!opts) {
2387 error_report("parse error: %s", optarg);
2388 exit(1);
2389 }
2390 }
2391
2392 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2393 qemu_opt_set(opts, "mode", mode, &error_abort);
2394 qemu_opt_set(opts, "chardev", label, &error_abort);
2395 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2396 monitor_device_index++;
2397 }
2398
2399 struct device_config {
2400 enum {
2401 DEV_USB, /* -usbdevice */
2402 DEV_BT, /* -bt */
2403 DEV_SERIAL, /* -serial */
2404 DEV_PARALLEL, /* -parallel */
2405 DEV_VIRTCON, /* -virtioconsole */
2406 DEV_DEBUGCON, /* -debugcon */
2407 DEV_GDB, /* -gdb, -s */
2408 DEV_SCLP, /* s390 sclp */
2409 } type;
2410 const char *cmdline;
2411 Location loc;
2412 QTAILQ_ENTRY(device_config) next;
2413 };
2414
2415 static QTAILQ_HEAD(, device_config) device_configs =
2416 QTAILQ_HEAD_INITIALIZER(device_configs);
2417
2418 static void add_device_config(int type, const char *cmdline)
2419 {
2420 struct device_config *conf;
2421
2422 conf = g_malloc0(sizeof(*conf));
2423 conf->type = type;
2424 conf->cmdline = cmdline;
2425 loc_save(&conf->loc);
2426 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2427 }
2428
2429 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2430 {
2431 struct device_config *conf;
2432 int rc;
2433
2434 QTAILQ_FOREACH(conf, &device_configs, next) {
2435 if (conf->type != type)
2436 continue;
2437 loc_push_restore(&conf->loc);
2438 rc = func(conf->cmdline);
2439 loc_pop(&conf->loc);
2440 if (rc) {
2441 return rc;
2442 }
2443 }
2444 return 0;
2445 }
2446
2447 static int serial_parse(const char *devname)
2448 {
2449 int index = num_serial_hds;
2450 char label[32];
2451
2452 if (strcmp(devname, "none") == 0)
2453 return 0;
2454 snprintf(label, sizeof(label), "serial%d", index);
2455 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2456
2457 serial_hds[index] = qemu_chr_new_mux_mon(label, devname);
2458 if (!serial_hds[index]) {
2459 error_report("could not connect serial device"
2460 " to character backend '%s'", devname);
2461 return -1;
2462 }
2463 num_serial_hds++;
2464 return 0;
2465 }
2466
2467 Chardev *serial_hd(int i)
2468 {
2469 assert(i >= 0);
2470 if (i < num_serial_hds) {
2471 return serial_hds[i];
2472 }
2473 return NULL;
2474 }
2475
2476 int serial_max_hds(void)
2477 {
2478 return num_serial_hds;
2479 }
2480
2481 static int parallel_parse(const char *devname)
2482 {
2483 static int index = 0;
2484 char label[32];
2485
2486 if (strcmp(devname, "none") == 0)
2487 return 0;
2488 if (index == MAX_PARALLEL_PORTS) {
2489 error_report("too many parallel ports");
2490 exit(1);
2491 }
2492 snprintf(label, sizeof(label), "parallel%d", index);
2493 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname);
2494 if (!parallel_hds[index]) {
2495 error_report("could not connect parallel device"
2496 " to character backend '%s'", devname);
2497 return -1;
2498 }
2499 index++;
2500 return 0;
2501 }
2502
2503 static int virtcon_parse(const char *devname)
2504 {
2505 QemuOptsList *device = qemu_find_opts("device");
2506 static int index = 0;
2507 char label[32];
2508 QemuOpts *bus_opts, *dev_opts;
2509
2510 if (strcmp(devname, "none") == 0)
2511 return 0;
2512 if (index == MAX_VIRTIO_CONSOLES) {
2513 error_report("too many virtio consoles");
2514 exit(1);
2515 }
2516
2517 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2518 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2519
2520 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2521 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2522
2523 snprintf(label, sizeof(label), "virtcon%d", index);
2524 virtcon_hds[index] = qemu_chr_new_mux_mon(label, devname);
2525 if (!virtcon_hds[index]) {
2526 error_report("could not connect virtio console"
2527 " to character backend '%s'", devname);
2528 return -1;
2529 }
2530 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2531
2532 index++;
2533 return 0;
2534 }
2535
2536 static int debugcon_parse(const char *devname)
2537 {
2538 QemuOpts *opts;
2539
2540 if (!qemu_chr_new_mux_mon("debugcon", devname)) {
2541 error_report("invalid character backend '%s'", devname);
2542 exit(1);
2543 }
2544 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2545 if (!opts) {
2546 error_report("already have a debugcon device");
2547 exit(1);
2548 }
2549 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2550 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2551 return 0;
2552 }
2553
2554 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2555 {
2556 const MachineClass *mc1 = a, *mc2 = b;
2557 int res;
2558
2559 if (mc1->family == NULL) {
2560 if (mc2->family == NULL) {
2561 /* Compare standalone machine types against each other; they sort
2562 * in increasing order.
2563 */
2564 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2565 object_class_get_name(OBJECT_CLASS(mc2)));
2566 }
2567
2568 /* Standalone machine types sort after families. */
2569 return 1;
2570 }
2571
2572 if (mc2->family == NULL) {
2573 /* Families sort before standalone machine types. */
2574 return -1;
2575 }
2576
2577 /* Families sort between each other alphabetically increasingly. */
2578 res = strcmp(mc1->family, mc2->family);
2579 if (res != 0) {
2580 return res;
2581 }
2582
2583 /* Within the same family, machine types sort in decreasing order. */
2584 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2585 object_class_get_name(OBJECT_CLASS(mc1)));
2586 }
2587
2588 static MachineClass *machine_parse(const char *name)
2589 {
2590 MachineClass *mc = NULL;
2591 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2592
2593 if (name) {
2594 mc = find_machine(name);
2595 }
2596 if (mc) {
2597 g_slist_free(machines);
2598 return mc;
2599 }
2600 if (name && !is_help_option(name)) {
2601 error_report("unsupported machine type");
2602 error_printf("Use -machine help to list supported machines\n");
2603 } else {
2604 printf("Supported machines are:\n");
2605 machines = g_slist_sort(machines, machine_class_cmp);
2606 for (el = machines; el; el = el->next) {
2607 MachineClass *mc = el->data;
2608 if (mc->alias) {
2609 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2610 }
2611 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2612 mc->is_default ? " (default)" : "",
2613 mc->deprecation_reason ? " (deprecated)" : "");
2614 }
2615 }
2616
2617 g_slist_free(machines);
2618 exit(!name || !is_help_option(name));
2619 }
2620
2621 void qemu_add_exit_notifier(Notifier *notify)
2622 {
2623 notifier_list_add(&exit_notifiers, notify);
2624 }
2625
2626 void qemu_remove_exit_notifier(Notifier *notify)
2627 {
2628 notifier_remove(notify);
2629 }
2630
2631 static void qemu_run_exit_notifiers(void)
2632 {
2633 notifier_list_notify(&exit_notifiers, NULL);
2634 }
2635
2636 static const char *pid_file;
2637 static Notifier qemu_unlink_pidfile_notifier;
2638
2639 static void qemu_unlink_pidfile(Notifier *n, void *data)
2640 {
2641 if (pid_file) {
2642 unlink(pid_file);
2643 }
2644 }
2645
2646 bool machine_init_done;
2647
2648 void qemu_add_machine_init_done_notifier(Notifier *notify)
2649 {
2650 notifier_list_add(&machine_init_done_notifiers, notify);
2651 if (machine_init_done) {
2652 notify->notify(notify, NULL);
2653 }
2654 }
2655
2656 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2657 {
2658 notifier_remove(notify);
2659 }
2660
2661 static void qemu_run_machine_init_done_notifiers(void)
2662 {
2663 machine_init_done = true;
2664 notifier_list_notify(&machine_init_done_notifiers, NULL);
2665 }
2666
2667 static const QEMUOption *lookup_opt(int argc, char **argv,
2668 const char **poptarg, int *poptind)
2669 {
2670 const QEMUOption *popt;
2671 int optind = *poptind;
2672 char *r = argv[optind];
2673 const char *optarg;
2674
2675 loc_set_cmdline(argv, optind, 1);
2676 optind++;
2677 /* Treat --foo the same as -foo. */
2678 if (r[1] == '-')
2679 r++;
2680 popt = qemu_options;
2681 for(;;) {
2682 if (!popt->name) {
2683 error_report("invalid option");
2684 exit(1);
2685 }
2686 if (!strcmp(popt->name, r + 1))
2687 break;
2688 popt++;
2689 }
2690 if (popt->flags & HAS_ARG) {
2691 if (optind >= argc) {
2692 error_report("requires an argument");
2693 exit(1);
2694 }
2695 optarg = argv[optind++];
2696 loc_set_cmdline(argv, optind - 2, 2);
2697 } else {
2698 optarg = NULL;
2699 }
2700
2701 *poptarg = optarg;
2702 *poptind = optind;
2703
2704 return popt;
2705 }
2706
2707 static MachineClass *select_machine(void)
2708 {
2709 MachineClass *machine_class = find_default_machine();
2710 const char *optarg;
2711 QemuOpts *opts;
2712 Location loc;
2713
2714 loc_push_none(&loc);
2715
2716 opts = qemu_get_machine_opts();
2717 qemu_opts_loc_restore(opts);
2718
2719 optarg = qemu_opt_get(opts, "type");
2720 if (optarg) {
2721 machine_class = machine_parse(optarg);
2722 }
2723
2724 if (!machine_class) {
2725 error_report("No machine specified, and there is no default");
2726 error_printf("Use -machine help to list supported machines\n");
2727 exit(1);
2728 }
2729
2730 loc_pop(&loc);
2731 return machine_class;
2732 }
2733
2734 static int machine_set_property(void *opaque,
2735 const char *name, const char *value,
2736 Error **errp)
2737 {
2738 Object *obj = OBJECT(opaque);
2739 Error *local_err = NULL;
2740 char *p, *qom_name;
2741
2742 if (strcmp(name, "type") == 0) {
2743 return 0;
2744 }
2745
2746 qom_name = g_strdup(name);
2747 for (p = qom_name; *p; p++) {
2748 if (*p == '_') {
2749 *p = '-';
2750 }
2751 }
2752
2753 object_property_parse(obj, value, qom_name, &local_err);
2754 g_free(qom_name);
2755
2756 if (local_err) {
2757 error_propagate(errp, local_err);
2758 return -1;
2759 }
2760
2761 return 0;
2762 }
2763
2764
2765 /*
2766 * Initial object creation happens before all other
2767 * QEMU data types are created. The majority of objects
2768 * can be created at this point. The rng-egd object
2769 * cannot be created here, as it depends on the chardev
2770 * already existing.
2771 */
2772 static bool object_create_initial(const char *type, QemuOpts *opts)
2773 {
2774 ObjectClass *klass;
2775
2776 if (is_help_option(type)) {
2777 GSList *l, *list;
2778
2779 printf("List of user creatable objects:\n");
2780 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2781 for (l = list; l != NULL; l = l->next) {
2782 ObjectClass *oc = OBJECT_CLASS(l->data);
2783 printf(" %s\n", object_class_get_name(oc));
2784 }
2785 g_slist_free(list);
2786 exit(0);
2787 }
2788
2789 klass = object_class_by_name(type);
2790 if (klass && qemu_opt_has_help_opt(opts)) {
2791 ObjectPropertyIterator iter;
2792 ObjectProperty *prop;
2793 GPtrArray *array = g_ptr_array_new();
2794 int i;
2795
2796 object_class_property_iter_init(&iter, klass);
2797 while ((prop = object_property_iter_next(&iter))) {
2798 GString *str;
2799
2800 if (!prop->set) {
2801 continue;
2802 }
2803
2804 str = g_string_new(NULL);
2805 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2806 if (prop->description) {
2807 if (str->len < 24) {
2808 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2809 }
2810 g_string_append_printf(str, " - %s", prop->description);
2811 }
2812 g_ptr_array_add(array, g_string_free(str, false));
2813 }
2814 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2815 if (array->len > 0) {
2816 printf("%s options:\n", type);
2817 } else {
2818 printf("There are no options for %s.\n", type);
2819 }
2820 for (i = 0; i < array->len; i++) {
2821 printf("%s\n", (char *)array->pdata[i]);
2822 }
2823 g_ptr_array_set_free_func(array, g_free);
2824 g_ptr_array_free(array, true);
2825 exit(0);
2826 }
2827
2828 if (g_str_equal(type, "rng-egd") ||
2829 g_str_has_prefix(type, "pr-manager-")) {
2830 return false;
2831 }
2832
2833 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2834 if (g_str_equal(type, "cryptodev-vhost-user")) {
2835 return false;
2836 }
2837 #endif
2838
2839 /*
2840 * return false for concrete netfilters since
2841 * they depend on netdevs already existing
2842 */
2843 if (g_str_equal(type, "filter-buffer") ||
2844 g_str_equal(type, "filter-dump") ||
2845 g_str_equal(type, "filter-mirror") ||
2846 g_str_equal(type, "filter-redirector") ||
2847 g_str_equal(type, "colo-compare") ||
2848 g_str_equal(type, "filter-rewriter") ||
2849 g_str_equal(type, "filter-replay")) {
2850 return false;
2851 }
2852
2853 /* Memory allocation by backends needs to be done
2854 * after configure_accelerator() (due to the tcg_enabled()
2855 * checks at memory_region_init_*()).
2856 *
2857 * Also, allocation of large amounts of memory may delay
2858 * chardev initialization for too long, and trigger timeouts
2859 * on software that waits for a monitor socket to be created
2860 * (e.g. libvirt).
2861 */
2862 if (g_str_has_prefix(type, "memory-backend-")) {
2863 return false;
2864 }
2865
2866 return true;
2867 }
2868
2869
2870 /*
2871 * The remainder of object creation happens after the
2872 * creation of chardev, fsdev, net clients and device data types.
2873 */
2874 static bool object_create_delayed(const char *type, QemuOpts *opts)
2875 {
2876 return !object_create_initial(type, opts);
2877 }
2878
2879
2880 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2881 MachineClass *mc)
2882 {
2883 uint64_t sz;
2884 const char *mem_str;
2885 const ram_addr_t default_ram_size = mc->default_ram_size;
2886 QemuOpts *opts = qemu_find_opts_singleton("memory");
2887 Location loc;
2888
2889 loc_push_none(&loc);
2890 qemu_opts_loc_restore(opts);
2891
2892 sz = 0;
2893 mem_str = qemu_opt_get(opts, "size");
2894 if (mem_str) {
2895 if (!*mem_str) {
2896 error_report("missing 'size' option value");
2897 exit(EXIT_FAILURE);
2898 }
2899
2900 sz = qemu_opt_get_size(opts, "size", ram_size);
2901
2902 /* Fix up legacy suffix-less format */
2903 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2904 uint64_t overflow_check = sz;
2905
2906 sz *= MiB;
2907 if (sz / MiB != overflow_check) {
2908 error_report("too large 'size' option value");
2909 exit(EXIT_FAILURE);
2910 }
2911 }
2912 }
2913
2914 /* backward compatibility behaviour for case "-m 0" */
2915 if (sz == 0) {
2916 sz = default_ram_size;
2917 }
2918
2919 sz = QEMU_ALIGN_UP(sz, 8192);
2920 ram_size = sz;
2921 if (ram_size != sz) {
2922 error_report("ram size too large");
2923 exit(EXIT_FAILURE);
2924 }
2925
2926 /* store value for the future use */
2927 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2928 *maxram_size = ram_size;
2929
2930 if (qemu_opt_get(opts, "maxmem")) {
2931 uint64_t slots;
2932
2933 sz = qemu_opt_get_size(opts, "maxmem", 0);
2934 slots = qemu_opt_get_number(opts, "slots", 0);
2935 if (sz < ram_size) {
2936 error_report("invalid value of -m option maxmem: "
2937 "maximum memory size (0x%" PRIx64 ") must be at least "
2938 "the initial memory size (0x" RAM_ADDR_FMT ")",
2939 sz, ram_size);
2940 exit(EXIT_FAILURE);
2941 } else if (slots && sz == ram_size) {
2942 error_report("invalid value of -m option maxmem: "
2943 "memory slots were specified but maximum memory size "
2944 "(0x%" PRIx64 ") is equal to the initial memory size "
2945 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2946 exit(EXIT_FAILURE);
2947 }
2948
2949 *maxram_size = sz;
2950 *ram_slots = slots;
2951 } else if (qemu_opt_get(opts, "slots")) {
2952 error_report("invalid -m option value: missing 'maxmem' option");
2953 exit(EXIT_FAILURE);
2954 }
2955
2956 loc_pop(&loc);
2957 }
2958
2959 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2960 {
2961 GlobalProperty *g;
2962
2963 g = g_malloc0(sizeof(*g));
2964 g->driver = qemu_opt_get(opts, "driver");
2965 g->property = qemu_opt_get(opts, "property");
2966 g->value = qemu_opt_get(opts, "value");
2967 g->user_provided = true;
2968 g->errp = &error_fatal;
2969 qdev_prop_register_global(g);
2970 return 0;
2971 }
2972
2973 static int qemu_read_default_config_file(void)
2974 {
2975 int ret;
2976
2977 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2978 if (ret < 0 && ret != -ENOENT) {
2979 return ret;
2980 }
2981
2982 return 0;
2983 }
2984
2985 static void user_register_global_props(void)
2986 {
2987 qemu_opts_foreach(qemu_find_opts("global"),
2988 global_init_func, NULL, NULL);
2989 }
2990
2991 /*
2992 * Note: we should see that these properties are actually having a
2993 * priority: accel < machine < user. This means e.g. when user
2994 * specifies something in "-global", it'll always be used with highest
2995 * priority than either machine/accelerator compat properties.
2996 */
2997 static void register_global_properties(MachineState *ms)
2998 {
2999 accel_register_compat_props(ms->accelerator);
3000 machine_register_compat_props(ms);
3001 user_register_global_props();
3002 }
3003
3004 int main(int argc, char **argv, char **envp)
3005 {
3006 int i;
3007 int snapshot, linux_boot;
3008 const char *initrd_filename;
3009 const char *kernel_filename, *kernel_cmdline;
3010 const char *boot_order = NULL;
3011 const char *boot_once = NULL;
3012 DisplayState *ds;
3013 QemuOpts *opts, *machine_opts;
3014 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3015 QemuOptsList *olist;
3016 int optind;
3017 const char *optarg;
3018 const char *loadvm = NULL;
3019 MachineClass *machine_class;
3020 const char *cpu_model;
3021 const char *vga_model = NULL;
3022 const char *qtest_chrdev = NULL;
3023 const char *qtest_log = NULL;
3024 const char *incoming = NULL;
3025 bool userconfig = true;
3026 bool nographic = false;
3027 int display_remote = 0;
3028 const char *log_mask = NULL;
3029 const char *log_file = NULL;
3030 char *trace_file = NULL;
3031 ram_addr_t maxram_size;
3032 uint64_t ram_slots = 0;
3033 FILE *vmstate_dump_file = NULL;
3034 Error *main_loop_err = NULL;
3035 Error *err = NULL;
3036 bool list_data_dirs = false;
3037 char *dir, **dirs;
3038 typedef struct BlockdevOptions_queue {
3039 BlockdevOptions *bdo;
3040 Location loc;
3041 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3042 } BlockdevOptions_queue;
3043 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3044 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3045
3046 module_call_init(MODULE_INIT_TRACE);
3047
3048 qemu_init_cpu_list();
3049 qemu_init_cpu_loop();
3050
3051 qemu_mutex_lock_iothread();
3052
3053 atexit(qemu_run_exit_notifiers);
3054 error_set_progname(argv[0]);
3055 qemu_init_exec_dir(argv[0]);
3056
3057 module_call_init(MODULE_INIT_QOM);
3058
3059 qemu_add_opts(&qemu_drive_opts);
3060 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3061 qemu_add_drive_opts(&qemu_common_drive_opts);
3062 qemu_add_drive_opts(&qemu_drive_opts);
3063 qemu_add_drive_opts(&bdrv_runtime_opts);
3064 qemu_add_opts(&qemu_chardev_opts);
3065 qemu_add_opts(&qemu_device_opts);
3066 qemu_add_opts(&qemu_netdev_opts);
3067 qemu_add_opts(&qemu_nic_opts);
3068 qemu_add_opts(&qemu_net_opts);
3069 qemu_add_opts(&qemu_rtc_opts);
3070 qemu_add_opts(&qemu_global_opts);
3071 qemu_add_opts(&qemu_mon_opts);
3072 qemu_add_opts(&qemu_trace_opts);
3073 qemu_add_opts(&qemu_option_rom_opts);
3074 qemu_add_opts(&qemu_machine_opts);
3075 qemu_add_opts(&qemu_accel_opts);
3076 qemu_add_opts(&qemu_mem_opts);
3077 qemu_add_opts(&qemu_smp_opts);
3078 qemu_add_opts(&qemu_boot_opts);
3079 qemu_add_opts(&qemu_add_fd_opts);
3080 qemu_add_opts(&qemu_object_opts);
3081 qemu_add_opts(&qemu_tpmdev_opts);
3082 qemu_add_opts(&qemu_realtime_opts);
3083 qemu_add_opts(&qemu_overcommit_opts);
3084 qemu_add_opts(&qemu_msg_opts);
3085 qemu_add_opts(&qemu_name_opts);
3086 qemu_add_opts(&qemu_numa_opts);
3087 qemu_add_opts(&qemu_icount_opts);
3088 qemu_add_opts(&qemu_semihosting_config_opts);
3089 qemu_add_opts(&qemu_fw_cfg_opts);
3090 module_call_init(MODULE_INIT_OPTS);
3091
3092 runstate_init();
3093 postcopy_infrastructure_init();
3094 monitor_init_globals();
3095
3096 if (qcrypto_init(&err) < 0) {
3097 error_reportf_err(err, "cannot initialize crypto: ");
3098 exit(1);
3099 }
3100
3101 QLIST_INIT (&vm_change_state_head);
3102 os_setup_early_signal_handling();
3103
3104 cpu_model = NULL;
3105 snapshot = 0;
3106
3107 nb_nics = 0;
3108
3109 bdrv_init_with_whitelist();
3110
3111 autostart = 1;
3112
3113 /* first pass of option parsing */
3114 optind = 1;
3115 while (optind < argc) {
3116 if (argv[optind][0] != '-') {
3117 /* disk image */
3118 optind++;
3119 } else {
3120 const QEMUOption *popt;
3121
3122 popt = lookup_opt(argc, argv, &optarg, &optind);
3123 switch (popt->index) {
3124 case QEMU_OPTION_nouserconfig:
3125 userconfig = false;
3126 break;
3127 }
3128 }
3129 }
3130
3131 if (userconfig) {
3132 if (qemu_read_default_config_file() < 0) {
3133 exit(1);
3134 }
3135 }
3136
3137 /* second pass of option parsing */
3138 optind = 1;
3139 for(;;) {
3140 if (optind >= argc)
3141 break;
3142 if (argv[optind][0] != '-') {
3143 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3144 } else {
3145 const QEMUOption *popt;
3146
3147 popt = lookup_opt(argc, argv, &optarg, &optind);
3148 if (!(popt->arch_mask & arch_type)) {
3149 error_report("Option not supported for this target");
3150 exit(1);
3151 }
3152 switch(popt->index) {
3153 case QEMU_OPTION_cpu:
3154 /* hw initialization will check this */
3155 cpu_model = optarg;
3156 break;
3157 case QEMU_OPTION_hda:
3158 case QEMU_OPTION_hdb:
3159 case QEMU_OPTION_hdc:
3160 case QEMU_OPTION_hdd:
3161 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3162 HD_OPTS);
3163 break;
3164 case QEMU_OPTION_blockdev:
3165 {
3166 Visitor *v;
3167 BlockdevOptions_queue *bdo;
3168
3169 v = qobject_input_visitor_new_str(optarg, "driver",
3170 &error_fatal);
3171
3172 bdo = g_new(BlockdevOptions_queue, 1);
3173 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3174 &error_fatal);
3175 visit_free(v);
3176 loc_save(&bdo->loc);
3177 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3178 break;
3179 }
3180 case QEMU_OPTION_drive:
3181 if (drive_def(optarg) == NULL) {
3182 exit(1);
3183 }
3184 break;
3185 case QEMU_OPTION_set:
3186 if (qemu_set_option(optarg) != 0)
3187 exit(1);
3188 break;
3189 case QEMU_OPTION_global:
3190 if (qemu_global_option(optarg) != 0)
3191 exit(1);
3192 break;
3193 case QEMU_OPTION_mtdblock:
3194 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3195 break;
3196 case QEMU_OPTION_sd:
3197 drive_add(IF_SD, -1, optarg, SD_OPTS);
3198 break;
3199 case QEMU_OPTION_pflash:
3200 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3201 break;
3202 case QEMU_OPTION_snapshot:
3203 snapshot = 1;
3204 break;
3205 case QEMU_OPTION_numa:
3206 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3207 optarg, true);
3208 if (!opts) {
3209 exit(1);
3210 }
3211 break;
3212 case QEMU_OPTION_display:
3213 parse_display(optarg);
3214 break;
3215 case QEMU_OPTION_nographic:
3216 olist = qemu_find_opts("machine");
3217 qemu_opts_parse_noisily(olist, "graphics=off", false);
3218 nographic = true;
3219 dpy.type = DISPLAY_TYPE_NONE;
3220 break;
3221 case QEMU_OPTION_curses:
3222 #ifdef CONFIG_CURSES
3223 dpy.type = DISPLAY_TYPE_CURSES;
3224 #else
3225 error_report("curses support is disabled");
3226 exit(1);
3227 #endif
3228 break;
3229 case QEMU_OPTION_portrait:
3230 graphic_rotate = 90;
3231 break;
3232 case QEMU_OPTION_rotate:
3233 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3234 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3235 graphic_rotate != 180 && graphic_rotate != 270) {
3236 error_report("only 90, 180, 270 deg rotation is available");
3237 exit(1);
3238 }
3239 break;
3240 case QEMU_OPTION_kernel:
3241 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3242 &error_abort);
3243 break;
3244 case QEMU_OPTION_initrd:
3245 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3246 &error_abort);
3247 break;
3248 case QEMU_OPTION_append:
3249 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3250 &error_abort);
3251 break;
3252 case QEMU_OPTION_dtb:
3253 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3254 &error_abort);
3255 break;
3256 case QEMU_OPTION_cdrom:
3257 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3258 break;
3259 case QEMU_OPTION_boot:
3260 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3261 optarg, true);
3262 if (!opts) {
3263 exit(1);
3264 }
3265 break;
3266 case QEMU_OPTION_fda:
3267 case QEMU_OPTION_fdb:
3268 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3269 optarg, FD_OPTS);
3270 break;
3271 case QEMU_OPTION_no_fd_bootchk:
3272 fd_bootchk = 0;
3273 break;
3274 case QEMU_OPTION_netdev:
3275 default_net = 0;
3276 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3277 exit(1);
3278 }
3279 break;
3280 case QEMU_OPTION_nic:
3281 default_net = 0;
3282 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3283 exit(1);
3284 }
3285 break;
3286 case QEMU_OPTION_net:
3287 default_net = 0;
3288 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3289 exit(1);
3290 }
3291 break;
3292 #ifdef CONFIG_LIBISCSI
3293 case QEMU_OPTION_iscsi:
3294 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3295 optarg, false);
3296 if (!opts) {
3297 exit(1);
3298 }
3299 break;
3300 #endif
3301 case QEMU_OPTION_bt:
3302 warn_report("The bluetooth subsystem is deprecated and will "
3303 "be removed soon. If the bluetooth subsystem is "
3304 "still useful for you, please send a mail to "
3305 "qemu-devel@nongnu.org with your usecase.");
3306 add_device_config(DEV_BT, optarg);
3307 break;
3308 case QEMU_OPTION_audio_help:
3309 AUD_help ();
3310 exit (0);
3311 break;
3312 case QEMU_OPTION_soundhw:
3313 select_soundhw (optarg);
3314 break;
3315 case QEMU_OPTION_h:
3316 help(0);
3317 break;
3318 case QEMU_OPTION_version:
3319 version();
3320 exit(0);
3321 break;
3322 case QEMU_OPTION_m:
3323 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3324 optarg, true);
3325 if (!opts) {
3326 exit(EXIT_FAILURE);
3327 }
3328 break;
3329 #ifdef CONFIG_TPM
3330 case QEMU_OPTION_tpmdev:
3331 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3332 exit(1);
3333 }
3334 break;
3335 #endif
3336 case QEMU_OPTION_mempath:
3337 mem_path = optarg;
3338 break;
3339 case QEMU_OPTION_mem_prealloc:
3340 mem_prealloc = 1;
3341 break;
3342 case QEMU_OPTION_d:
3343 log_mask = optarg;
3344 break;
3345 case QEMU_OPTION_D:
3346 log_file = optarg;
3347 break;
3348 case QEMU_OPTION_DFILTER:
3349 qemu_set_dfilter_ranges(optarg, &error_fatal);
3350 break;
3351 case QEMU_OPTION_s:
3352 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3353 break;
3354 case QEMU_OPTION_gdb:
3355 add_device_config(DEV_GDB, optarg);
3356 break;
3357 case QEMU_OPTION_L:
3358 if (is_help_option(optarg)) {
3359 list_data_dirs = true;
3360 } else {
3361 qemu_add_data_dir(optarg);
3362 }
3363 break;
3364 case QEMU_OPTION_bios:
3365 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3366 &error_abort);
3367 break;
3368 case QEMU_OPTION_singlestep:
3369 singlestep = 1;
3370 break;
3371 case QEMU_OPTION_S:
3372 autostart = 0;
3373 break;
3374 case QEMU_OPTION_k:
3375 keyboard_layout = optarg;
3376 break;
3377 case QEMU_OPTION_vga:
3378 vga_model = optarg;
3379 default_vga = 0;
3380 break;
3381 case QEMU_OPTION_g:
3382 {
3383 const char *p;
3384 int w, h, depth;
3385 p = optarg;
3386 w = strtol(p, (char **)&p, 10);
3387 if (w <= 0) {
3388 graphic_error:
3389 error_report("invalid resolution or depth");
3390 exit(1);
3391 }
3392 if (*p != 'x')
3393 goto graphic_error;
3394 p++;
3395 h = strtol(p, (char **)&p, 10);
3396 if (h <= 0)
3397 goto graphic_error;
3398 if (*p == 'x') {
3399 p++;
3400 depth = strtol(p, (char **)&p, 10);
3401 if (depth != 8 && depth != 15 && depth != 16 &&
3402 depth != 24 && depth != 32)
3403 goto graphic_error;
3404 } else if (*p == '\0') {
3405 depth = graphic_depth;
3406 } else {
3407 goto graphic_error;
3408 }
3409
3410 graphic_width = w;
3411 graphic_height = h;
3412 graphic_depth = depth;
3413 }
3414 break;
3415 case QEMU_OPTION_echr:
3416 {
3417 char *r;
3418 term_escape_char = strtol(optarg, &r, 0);
3419 if (r == optarg)
3420 printf("Bad argument to echr\n");
3421 break;
3422 }
3423 case QEMU_OPTION_monitor:
3424 default_monitor = 0;
3425 if (strncmp(optarg, "none", 4)) {
3426 monitor_parse(optarg, "readline", false);
3427 }
3428 break;
3429 case QEMU_OPTION_qmp:
3430 monitor_parse(optarg, "control", false);
3431 default_monitor = 0;
3432 break;
3433 case QEMU_OPTION_qmp_pretty:
3434 monitor_parse(optarg, "control", true);
3435 default_monitor = 0;
3436 break;
3437 case QEMU_OPTION_mon:
3438 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3439 true);
3440 if (!opts) {
3441 exit(1);
3442 }
3443 default_monitor = 0;
3444 break;
3445 case QEMU_OPTION_chardev:
3446 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3447 optarg, true);
3448 if (!opts) {
3449 exit(1);
3450 }
3451 break;
3452 case QEMU_OPTION_fsdev:
3453 olist = qemu_find_opts("fsdev");
3454 if (!olist) {
3455 error_report("fsdev support is disabled");
3456 exit(1);
3457 }
3458 opts = qemu_opts_parse_noisily(olist, optarg, true);
3459 if (!opts) {
3460 exit(1);
3461 }
3462 break;
3463 case QEMU_OPTION_virtfs: {
3464 QemuOpts *fsdev;
3465 QemuOpts *device;
3466 const char *writeout, *sock_fd, *socket, *path, *security_model;
3467
3468 olist = qemu_find_opts("virtfs");
3469 if (!olist) {
3470 error_report("virtfs support is disabled");
3471 exit(1);
3472 }
3473 opts = qemu_opts_parse_noisily(olist, optarg, true);
3474 if (!opts) {
3475 exit(1);
3476 }
3477
3478 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3479 qemu_opt_get(opts, "mount_tag") == NULL) {
3480 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3481 exit(1);
3482 }
3483 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3484 qemu_opts_id(opts) ?:
3485 qemu_opt_get(opts, "mount_tag"),
3486 1, NULL);
3487 if (!fsdev) {
3488 error_report("duplicate or invalid fsdev id: %s",
3489 qemu_opt_get(opts, "mount_tag"));
3490 exit(1);
3491 }
3492
3493 writeout = qemu_opt_get(opts, "writeout");
3494 if (writeout) {
3495 #ifdef CONFIG_SYNC_FILE_RANGE
3496 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3497 #else
3498 error_report("writeout=immediate not supported "
3499 "on this platform");
3500 exit(1);
3501 #endif
3502 }
3503 qemu_opt_set(fsdev, "fsdriver",
3504 qemu_opt_get(opts, "fsdriver"), &error_abort);
3505 path = qemu_opt_get(opts, "path");
3506 if (path) {
3507 qemu_opt_set(fsdev, "path", path, &error_abort);
3508 }
3509 security_model = qemu_opt_get(opts, "security_model");
3510 if (security_model) {
3511 qemu_opt_set(fsdev, "security_model", security_model,
3512 &error_abort);
3513 }
3514 socket = qemu_opt_get(opts, "socket");
3515 if (socket) {
3516 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3517 }
3518 sock_fd = qemu_opt_get(opts, "sock_fd");
3519 if (sock_fd) {
3520 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3521 }
3522
3523 qemu_opt_set_bool(fsdev, "readonly",
3524 qemu_opt_get_bool(opts, "readonly", 0),
3525 &error_abort);
3526 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3527 &error_abort);
3528 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3529 qemu_opt_set(device, "fsdev",
3530 qemu_opts_id(fsdev), &error_abort);
3531 qemu_opt_set(device, "mount_tag",
3532 qemu_opt_get(opts, "mount_tag"), &error_abort);
3533 break;
3534 }
3535 case QEMU_OPTION_virtfs_synth: {
3536 QemuOpts *fsdev;
3537 QemuOpts *device;
3538
3539 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3540 1, NULL);
3541 if (!fsdev) {
3542 error_report("duplicate option: %s", "virtfs_synth");
3543 exit(1);
3544 }
3545 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3546
3547 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3548 &error_abort);
3549 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3550 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3551 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3552 break;
3553 }
3554 case QEMU_OPTION_serial:
3555 add_device_config(DEV_SERIAL, optarg);
3556 default_serial = 0;
3557 if (strncmp(optarg, "mon:", 4) == 0) {
3558 default_monitor = 0;
3559 }
3560 break;
3561 case QEMU_OPTION_watchdog:
3562 if (watchdog) {
3563 error_report("only one watchdog option may be given");
3564 return 1;
3565 }
3566 watchdog = optarg;
3567 break;
3568 case QEMU_OPTION_watchdog_action:
3569 if (select_watchdog_action(optarg) == -1) {
3570 error_report("unknown -watchdog-action parameter");
3571 exit(1);
3572 }
3573 break;
3574 case QEMU_OPTION_virtiocon:
3575 warn_report("This option is deprecated, "
3576 "use '-device virtconsole' instead");
3577 add_device_config(DEV_VIRTCON, optarg);
3578 default_virtcon = 0;
3579 if (strncmp(optarg, "mon:", 4) == 0) {
3580 default_monitor = 0;
3581 }
3582 break;
3583 case QEMU_OPTION_parallel:
3584 add_device_config(DEV_PARALLEL, optarg);
3585 default_parallel = 0;
3586 if (strncmp(optarg, "mon:", 4) == 0) {
3587 default_monitor = 0;
3588 }
3589 break;
3590 case QEMU_OPTION_debugcon:
3591 add_device_config(DEV_DEBUGCON, optarg);
3592 break;
3593 case QEMU_OPTION_loadvm:
3594 loadvm = optarg;
3595 break;
3596 case QEMU_OPTION_full_screen:
3597 dpy.has_full_screen = true;
3598 dpy.full_screen = true;
3599 break;
3600 case QEMU_OPTION_no_frame:
3601 g_printerr("The -no-frame switch is deprecated, and will be\n"
3602 "removed in a future release.\n");
3603 no_frame = 1;
3604 break;
3605 case QEMU_OPTION_alt_grab:
3606 alt_grab = 1;
3607 break;
3608 case QEMU_OPTION_ctrl_grab:
3609 ctrl_grab = 1;
3610 break;
3611 case QEMU_OPTION_no_quit:
3612 dpy.has_window_close = true;
3613 dpy.window_close = false;
3614 break;
3615 case QEMU_OPTION_sdl:
3616 #ifdef CONFIG_SDL
3617 dpy.type = DISPLAY_TYPE_SDL;
3618 break;
3619 #else
3620 error_report("SDL support is disabled");
3621 exit(1);
3622 #endif
3623 case QEMU_OPTION_pidfile:
3624 pid_file = optarg;
3625 break;
3626 case QEMU_OPTION_win2k_hack:
3627 win2k_install_hack = 1;
3628 break;
3629 case QEMU_OPTION_acpitable:
3630 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3631 optarg, true);
3632 if (!opts) {
3633 exit(1);
3634 }
3635 acpi_table_add(opts, &error_fatal);
3636 break;
3637 case QEMU_OPTION_smbios:
3638 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3639 optarg, false);
3640 if (!opts) {
3641 exit(1);
3642 }
3643 smbios_entry_add(opts, &error_fatal);
3644 break;
3645 case QEMU_OPTION_fwcfg:
3646 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3647 optarg, true);
3648 if (opts == NULL) {
3649 exit(1);
3650 }
3651 break;
3652 case QEMU_OPTION_preconfig:
3653 preconfig_exit_requested = false;
3654 break;
3655 case QEMU_OPTION_enable_kvm:
3656 olist = qemu_find_opts("machine");
3657 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3658 break;
3659 case QEMU_OPTION_enable_hax:
3660 warn_report("Option is deprecated, use '-accel hax' instead");
3661 olist = qemu_find_opts("machine");
3662 qemu_opts_parse_noisily(olist, "accel=hax", false);
3663 break;
3664 case QEMU_OPTION_M:
3665 case QEMU_OPTION_machine:
3666 olist = qemu_find_opts("machine");
3667 opts = qemu_opts_parse_noisily(olist, optarg, true);
3668 if (!opts) {
3669 exit(1);
3670 }
3671 break;
3672 case QEMU_OPTION_no_kvm:
3673 olist = qemu_find_opts("machine");
3674 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3675 break;
3676 case QEMU_OPTION_accel:
3677 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3678 optarg, true);
3679 optarg = qemu_opt_get(accel_opts, "accel");
3680 if (!optarg || is_help_option(optarg)) {
3681 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3682 exit(0);
3683 }
3684 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3685 false, &error_abort);
3686 qemu_opt_set(opts, "accel", optarg, &error_abort);
3687 break;
3688 case QEMU_OPTION_usb:
3689 olist = qemu_find_opts("machine");
3690 qemu_opts_parse_noisily(olist, "usb=on", false);
3691 break;
3692 case QEMU_OPTION_usbdevice:
3693 error_report("'-usbdevice' is deprecated, please use "
3694 "'-device usb-...' instead");
3695 olist = qemu_find_opts("machine");
3696 qemu_opts_parse_noisily(olist, "usb=on", false);
3697 add_device_config(DEV_USB, optarg);
3698 break;
3699 case QEMU_OPTION_device:
3700 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3701 optarg, true)) {
3702 exit(1);
3703 }
3704 break;
3705 case QEMU_OPTION_smp:
3706 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3707 optarg, true)) {
3708 exit(1);
3709 }
3710 break;
3711 case QEMU_OPTION_vnc:
3712 vnc_parse(optarg, &error_fatal);
3713 break;
3714 case QEMU_OPTION_no_acpi:
3715 acpi_enabled = 0;
3716 break;
3717 case QEMU_OPTION_no_hpet:
3718 no_hpet = 1;
3719 break;
3720 case QEMU_OPTION_no_reboot:
3721 no_reboot = 1;
3722 break;
3723 case QEMU_OPTION_no_shutdown:
3724 no_shutdown = 1;
3725 break;
3726 case QEMU_OPTION_show_cursor:
3727 cursor_hide = 0;
3728 break;
3729 case QEMU_OPTION_uuid:
3730 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3731 error_report("failed to parse UUID string: wrong format");
3732 exit(1);
3733 }
3734 qemu_uuid_set = true;
3735 break;
3736 case QEMU_OPTION_option_rom:
3737 if (nb_option_roms >= MAX_OPTION_ROMS) {
3738 error_report("too many option ROMs");
3739 exit(1);
3740 }
3741 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3742 optarg, true);
3743 if (!opts) {
3744 exit(1);
3745 }
3746 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3747 option_rom[nb_option_roms].bootindex =
3748 qemu_opt_get_number(opts, "bootindex", -1);
3749 if (!option_rom[nb_option_roms].name) {
3750 error_report("Option ROM file is not specified");
3751 exit(1);
3752 }
3753 nb_option_roms++;
3754 break;
3755 case QEMU_OPTION_semihosting:
3756 semihosting.enabled = true;
3757 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3758 break;
3759 case QEMU_OPTION_semihosting_config:
3760 semihosting.enabled = true;
3761 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3762 optarg, false);
3763 if (opts != NULL) {
3764 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3765 true);
3766 const char *target = qemu_opt_get(opts, "target");
3767 if (target != NULL) {
3768 if (strcmp("native", target) == 0) {
3769 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3770 } else if (strcmp("gdb", target) == 0) {
3771 semihosting.target = SEMIHOSTING_TARGET_GDB;
3772 } else if (strcmp("auto", target) == 0) {
3773 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3774 } else {
3775 error_report("unsupported semihosting-config %s",
3776 optarg);
3777 exit(1);
3778 }
3779 } else {
3780 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3781 }
3782 /* Set semihosting argument count and vector */
3783 qemu_opt_foreach(opts, add_semihosting_arg,
3784 &semihosting, NULL);
3785 } else {
3786 error_report("unsupported semihosting-config %s", optarg);
3787 exit(1);
3788 }
3789 break;
3790 case QEMU_OPTION_name:
3791 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3792 optarg, true);
3793 if (!opts) {
3794 exit(1);
3795 }
3796 break;
3797 case QEMU_OPTION_prom_env:
3798 if (nb_prom_envs >= MAX_PROM_ENVS) {
3799 error_report("too many prom variables");
3800 exit(1);
3801 }
3802 prom_envs[nb_prom_envs] = optarg;
3803 nb_prom_envs++;
3804 break;
3805 case QEMU_OPTION_old_param:
3806 old_param = 1;
3807 break;
3808 case QEMU_OPTION_clock:
3809 /* Clock options no longer exist. Keep this option for
3810 * backward compatibility.
3811 */
3812 warn_report("This option is ignored and will be removed soon");
3813 break;
3814 case QEMU_OPTION_rtc:
3815 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3816 false);
3817 if (!opts) {
3818 exit(1);
3819 }
3820 break;
3821 case QEMU_OPTION_tb_size:
3822 #ifndef CONFIG_TCG
3823 error_report("TCG is disabled");
3824 exit(1);
3825 #endif
3826 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3827 error_report("Invalid argument to -tb-size");
3828 exit(1);
3829 }
3830 break;
3831 case QEMU_OPTION_icount:
3832 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3833 optarg, true);
3834 if (!icount_opts) {
3835 exit(1);
3836 }
3837 break;
3838 case QEMU_OPTION_incoming:
3839 if (!incoming) {
3840 runstate_set(RUN_STATE_INMIGRATE);
3841 }
3842 incoming = optarg;
3843 break;
3844 case QEMU_OPTION_only_migratable:
3845 /*
3846 * TODO: we can remove this option one day, and we
3847 * should all use:
3848 *
3849 * "-global migration.only-migratable=true"
3850 */
3851 qemu_global_option("migration.only-migratable=true");
3852 break;
3853 case QEMU_OPTION_nodefaults:
3854 has_defaults = 0;
3855 break;
3856 case QEMU_OPTION_xen_domid:
3857 if (!(xen_available())) {
3858 error_report("Option not supported for this target");
3859 exit(1);
3860 }
3861 xen_domid = atoi(optarg);
3862 break;
3863 case QEMU_OPTION_xen_create:
3864 if (!(xen_available())) {
3865 error_report("Option not supported for this target");
3866 exit(1);
3867 }
3868 xen_mode = XEN_CREATE;
3869 break;
3870 case QEMU_OPTION_xen_attach:
3871 if (!(xen_available())) {
3872 error_report("Option not supported for this target");
3873 exit(1);
3874 }
3875 xen_mode = XEN_ATTACH;
3876 break;
3877 case QEMU_OPTION_xen_domid_restrict:
3878 if (!(xen_available())) {
3879 error_report("Option not supported for this target");
3880 exit(1);
3881 }
3882 xen_domid_restrict = true;
3883 break;
3884 case QEMU_OPTION_trace:
3885 g_free(trace_file);
3886 trace_file = trace_opt_parse(optarg);
3887 break;
3888 case QEMU_OPTION_readconfig:
3889 {
3890 int ret = qemu_read_config_file(optarg);
3891 if (ret < 0) {
3892 error_report("read config %s: %s", optarg,
3893 strerror(-ret));
3894 exit(1);
3895 }
3896 break;
3897 }
3898 case QEMU_OPTION_spice:
3899 olist = qemu_find_opts("spice");
3900 if (!olist) {
3901 error_report("spice support is disabled");
3902 exit(1);
3903 }
3904 opts = qemu_opts_parse_noisily(olist, optarg, false);
3905 if (!opts) {
3906 exit(1);
3907 }
3908 display_remote++;
3909 break;
3910 case QEMU_OPTION_writeconfig:
3911 {
3912 FILE *fp;
3913 if (strcmp(optarg, "-") == 0) {
3914 fp = stdout;
3915 } else {
3916 fp = fopen(optarg, "w");
3917 if (fp == NULL) {
3918 error_report("open %s: %s", optarg,
3919 strerror(errno));
3920 exit(1);
3921 }
3922 }
3923 qemu_config_write(fp);
3924 if (fp != stdout) {
3925 fclose(fp);
3926 }
3927 break;
3928 }
3929 case QEMU_OPTION_qtest:
3930 qtest_chrdev = optarg;
3931 break;
3932 case QEMU_OPTION_qtest_log:
3933 qtest_log = optarg;
3934 break;
3935 case QEMU_OPTION_sandbox:
3936 #ifdef CONFIG_SECCOMP
3937 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3938 optarg, true);
3939 if (!opts) {
3940 exit(1);
3941 }
3942 #else
3943 error_report("-sandbox support is not enabled "
3944 "in this QEMU binary");
3945 exit(1);
3946 #endif
3947 break;
3948 case QEMU_OPTION_add_fd:
3949 #ifndef _WIN32
3950 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3951 optarg, false);
3952 if (!opts) {
3953 exit(1);
3954 }
3955 #else
3956 error_report("File descriptor passing is disabled on this "
3957 "platform");
3958 exit(1);
3959 #endif
3960 break;
3961 case QEMU_OPTION_object:
3962 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3963 optarg, true);
3964 if (!opts) {
3965 exit(1);
3966 }
3967 break;
3968 case QEMU_OPTION_realtime:
3969 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3970 optarg, false);
3971 if (!opts) {
3972 exit(1);
3973 }
3974 /* Don't override the -overcommit option if set */
3975 enable_mlock = enable_mlock ||
3976 qemu_opt_get_bool(opts, "mlock", true);
3977 break;
3978 case QEMU_OPTION_overcommit:
3979 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3980 optarg, false);
3981 if (!opts) {
3982 exit(1);
3983 }
3984 /* Don't override the -realtime option if set */
3985 enable_mlock = enable_mlock ||
3986 qemu_opt_get_bool(opts, "mem-lock", false);
3987 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3988 break;
3989 case QEMU_OPTION_msg:
3990 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3991 false);
3992 if (!opts) {
3993 exit(1);
3994 }
3995 configure_msg(opts);
3996 break;
3997 case QEMU_OPTION_dump_vmstate:
3998 if (vmstate_dump_file) {
3999 error_report("only one '-dump-vmstate' "
4000 "option may be given");
4001 exit(1);
4002 }
4003 vmstate_dump_file = fopen(optarg, "w");
4004 if (vmstate_dump_file == NULL) {
4005 error_report("open %s: %s", optarg, strerror(errno));
4006 exit(1);
4007 }
4008 break;
4009 case QEMU_OPTION_enable_sync_profile:
4010 qsp_enable();
4011 break;
4012 case QEMU_OPTION_nouserconfig:
4013 /* Nothing to be parsed here. Especially, do not error out below. */
4014 break;
4015 default:
4016 if (os_parse_cmd_args(popt->index, optarg)) {
4017 error_report("Option not supported in this build");
4018 exit(1);
4019 }
4020 }
4021 }
4022 }
4023 /*
4024 * Clear error location left behind by the loop.
4025 * Best done right after the loop. Do not insert code here!
4026 */
4027 loc_set_none();
4028
4029 replay_configure(icount_opts);
4030
4031 if (incoming && !preconfig_exit_requested) {
4032 error_report("'preconfig' and 'incoming' options are "
4033 "mutually exclusive");
4034 exit(EXIT_FAILURE);
4035 }
4036
4037 configure_rtc(qemu_find_opts_singleton("rtc"));
4038
4039 machine_class = select_machine();
4040
4041 set_memory_options(&ram_slots, &maxram_size, machine_class);
4042
4043 os_daemonize();
4044 rcu_disable_atfork();
4045
4046 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
4047 error_reportf_err(err, "cannot create PID file: ");
4048 exit(1);
4049 }
4050
4051 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
4052 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4053
4054 if (qemu_init_main_loop(&main_loop_err)) {
4055 error_report_err(main_loop_err);
4056 exit(1);
4057 }
4058
4059 #ifdef CONFIG_SECCOMP
4060 olist = qemu_find_opts_err("sandbox", NULL);
4061 if (olist) {
4062 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4063 }
4064 #endif
4065
4066 qemu_opts_foreach(qemu_find_opts("name"),
4067 parse_name, NULL, &error_fatal);
4068
4069 #ifndef _WIN32
4070 qemu_opts_foreach(qemu_find_opts("add-fd"),
4071 parse_add_fd, NULL, &error_fatal);
4072
4073 qemu_opts_foreach(qemu_find_opts("add-fd"),
4074 cleanup_add_fd, NULL, &error_fatal);
4075 #endif
4076
4077 current_machine = MACHINE(object_new(object_class_get_name(
4078 OBJECT_CLASS(machine_class))));
4079 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4080 exit(0);
4081 }
4082 object_property_add_child(object_get_root(), "machine",
4083 OBJECT(current_machine), &error_abort);
4084
4085 if (machine_class->minimum_page_bits) {
4086 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4087 /* This would be a board error: specifying a minimum smaller than
4088 * a target's compile-time fixed setting.
4089 */
4090 g_assert_not_reached();
4091 }
4092 }
4093
4094 cpu_exec_init_all();
4095
4096 if (machine_class->hw_version) {
4097 qemu_set_hw_version(machine_class->hw_version);
4098 }
4099
4100 if (cpu_model && is_help_option(cpu_model)) {
4101 list_cpus(stdout, &fprintf, cpu_model);
4102 exit(0);
4103 }
4104
4105 if (!trace_init_backends()) {
4106 exit(1);
4107 }
4108 trace_init_file(trace_file);
4109
4110 /* Open the logfile at this point and set the log mask if necessary.
4111 */
4112 if (log_file) {
4113 qemu_set_log_filename(log_file, &error_fatal);
4114 }
4115
4116 if (log_mask) {
4117 int mask;
4118 mask = qemu_str_to_log_mask(log_mask);
4119 if (!mask) {
4120 qemu_print_log_usage(stdout);
4121 exit(1);
4122 }
4123 qemu_set_log(mask);
4124 } else {
4125 qemu_set_log(0);
4126 }
4127
4128 /* add configured firmware directories */
4129 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4130 for (i = 0; dirs[i] != NULL; i++) {
4131 qemu_add_data_dir(dirs[i]);
4132 }
4133 g_strfreev(dirs);
4134
4135 /* try to find datadir relative to the executable path */
4136 dir = os_find_datadir();
4137 qemu_add_data_dir(dir);
4138 g_free(dir);
4139
4140 /* add the datadir specified when building */
4141 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4142
4143 /* -L help lists the data directories and exits. */
4144 if (list_data_dirs) {
4145 for (i = 0; i < data_dir_idx; i++) {
4146 printf("%s\n", data_dir[i]);
4147 }
4148 exit(0);
4149 }
4150
4151 /* machine_class: default to UP */
4152 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4153 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4154 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4155
4156 /* default to machine_class->default_cpus */
4157 smp_cpus = machine_class->default_cpus;
4158 max_cpus = machine_class->default_cpus;
4159
4160 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4161
4162 /* sanity-check smp_cpus and max_cpus against machine_class */
4163 if (smp_cpus < machine_class->min_cpus) {
4164 error_report("Invalid SMP CPUs %d. The min CPUs "
4165 "supported by machine '%s' is %d", smp_cpus,
4166 machine_class->name, machine_class->min_cpus);
4167 exit(1);
4168 }
4169 if (max_cpus > machine_class->max_cpus) {
4170 error_report("Invalid SMP CPUs %d. The max CPUs "
4171 "supported by machine '%s' is %d", max_cpus,
4172 machine_class->name, machine_class->max_cpus);
4173 exit(1);
4174 }
4175
4176 /*
4177 * Get the default machine options from the machine if it is not already
4178 * specified either by the configuration file or by the command line.
4179 */
4180 if (machine_class->default_machine_opts) {
4181 qemu_opts_set_defaults(qemu_find_opts("machine"),
4182 machine_class->default_machine_opts, 0);
4183 }
4184
4185 qemu_opts_foreach(qemu_find_opts("device"),
4186 default_driver_check, NULL, NULL);
4187 qemu_opts_foreach(qemu_find_opts("global"),
4188 default_driver_check, NULL, NULL);
4189
4190 if (!vga_model && !default_vga) {
4191 vga_interface_type = VGA_DEVICE;
4192 }
4193 if (!has_defaults || machine_class->no_serial) {
4194 default_serial = 0;
4195 }
4196 if (!has_defaults || machine_class->no_parallel) {
4197 default_parallel = 0;
4198 }
4199 if (!has_defaults || !machine_class->use_virtcon) {
4200 default_virtcon = 0;
4201 }
4202 if (!has_defaults || machine_class->no_floppy) {
4203 default_floppy = 0;
4204 }
4205 if (!has_defaults || machine_class->no_cdrom) {
4206 default_cdrom = 0;
4207 }
4208 if (!has_defaults || machine_class->no_sdcard) {
4209 default_sdcard = 0;
4210 }
4211 if (!has_defaults) {
4212 default_monitor = 0;
4213 default_net = 0;
4214 default_vga = 0;
4215 }
4216
4217 if (is_daemonized()) {
4218 if (!preconfig_exit_requested) {
4219 error_report("'preconfig' and 'daemonize' options are "
4220 "mutually exclusive");
4221 exit(EXIT_FAILURE);
4222 }
4223
4224 /* According to documentation and historically, -nographic redirects
4225 * serial port, parallel port and monitor to stdio, which does not work
4226 * with -daemonize. We can redirect these to null instead, but since
4227 * -nographic is legacy, let's just error out.
4228 * We disallow -nographic only if all other ports are not redirected
4229 * explicitly, to not break existing legacy setups which uses
4230 * -nographic _and_ redirects all ports explicitly - this is valid
4231 * usage, -nographic is just a no-op in this case.
4232 */
4233 if (nographic
4234 && (default_parallel || default_serial
4235 || default_monitor || default_virtcon)) {
4236 error_report("-nographic cannot be used with -daemonize");
4237 exit(1);
4238 }
4239 #ifdef CONFIG_CURSES
4240 if (dpy.type == DISPLAY_TYPE_CURSES) {
4241 error_report("curses display cannot be used with -daemonize");
4242 exit(1);
4243 }
4244 #endif
4245 }
4246
4247 if (nographic) {
4248 if (default_parallel)
4249 add_device_config(DEV_PARALLEL, "null");
4250 if (default_serial && default_monitor) {
4251 add_device_config(DEV_SERIAL, "mon:stdio");
4252 } else if (default_virtcon && default_monitor) {
4253 add_device_config(DEV_VIRTCON, "mon:stdio");
4254 } else {
4255 if (default_serial)
4256 add_device_config(DEV_SERIAL, "stdio");
4257 if (default_virtcon)
4258 add_device_config(DEV_VIRTCON, "stdio");
4259 if (default_monitor)
4260 monitor_parse("stdio", "readline", false);
4261 }
4262 } else {
4263 if (default_serial)
4264 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4265 if (default_parallel)
4266 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4267 if (default_monitor)
4268 monitor_parse("vc:80Cx24C", "readline", false);
4269 if (default_virtcon)
4270 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4271 }
4272
4273 #if defined(CONFIG_VNC)
4274 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4275 display_remote++;
4276 }
4277 #endif
4278 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4279 if (!qemu_display_find_default(&dpy)) {
4280 dpy.type = DISPLAY_TYPE_NONE;
4281 #if defined(CONFIG_VNC)
4282 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4283 #endif
4284 }
4285 }
4286 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4287 dpy.type = DISPLAY_TYPE_NONE;
4288 }
4289
4290 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4291 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4292 "for SDL, ignoring option");
4293 }
4294 if (dpy.has_window_close &&
4295 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4296 error_report("-no-quit is only valid for GTK and SDL, "
4297 "ignoring option");
4298 }
4299
4300 qemu_display_early_init(&dpy);
4301 qemu_console_early_init();
4302
4303 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4304 #if defined(CONFIG_OPENGL)
4305 error_report("OpenGL is not supported by the display");
4306 #else
4307 error_report("OpenGL support is disabled");
4308 #endif
4309 exit(1);
4310 }
4311
4312 page_size_init();
4313 socket_init();
4314
4315 qemu_opts_foreach(qemu_find_opts("object"),
4316 user_creatable_add_opts_foreach,
4317 object_create_initial, &error_fatal);
4318
4319 qemu_opts_foreach(qemu_find_opts("chardev"),
4320 chardev_init_func, NULL, &error_fatal);
4321
4322 #ifdef CONFIG_VIRTFS
4323 qemu_opts_foreach(qemu_find_opts("fsdev"),
4324 fsdev_init_func, NULL, &error_fatal);
4325 #endif
4326
4327 if (qemu_opts_foreach(qemu_find_opts("device"),
4328 device_help_func, NULL, NULL)) {
4329 exit(0);
4330 }
4331
4332 machine_opts = qemu_get_machine_opts();
4333 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4334 &error_fatal);
4335
4336 configure_accelerator(current_machine);
4337
4338 if (!qtest_enabled() && machine_class->deprecation_reason) {
4339 error_report("Machine type '%s' is deprecated: %s",
4340 machine_class->name, machine_class->deprecation_reason);
4341 }
4342
4343 /*
4344 * Register all the global properties, including accel properties,
4345 * machine properties, and user-specified ones.
4346 */
4347 register_global_properties(current_machine);
4348
4349 /*
4350 * Migration object can only be created after global properties
4351 * are applied correctly.
4352 */
4353 migration_object_init();
4354
4355 if (qtest_chrdev) {
4356 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4357 }
4358
4359 machine_opts = qemu_get_machine_opts();
4360 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4361 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4362 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4363 bios_name = qemu_opt_get(machine_opts, "firmware");
4364
4365 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4366 if (opts) {
4367 boot_order = qemu_opt_get(opts, "order");
4368 if (boot_order) {
4369 validate_bootdevices(boot_order, &error_fatal);
4370 }
4371
4372 boot_once = qemu_opt_get(opts, "once");
4373 if (boot_once) {
4374 validate_bootdevices(boot_once, &error_fatal);
4375 }
4376
4377 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4378 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4379 }
4380
4381 if (!boot_order) {
4382 boot_order = machine_class->default_boot_order;
4383 }
4384
4385 if (!kernel_cmdline) {
4386 kernel_cmdline = "";
4387 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4388 }
4389
4390 linux_boot = (kernel_filename != NULL);
4391
4392 if (!linux_boot && *kernel_cmdline != '\0') {
4393 error_report("-append only allowed with -kernel option");
4394 exit(1);
4395 }
4396
4397 if (!linux_boot && initrd_filename != NULL) {
4398 error_report("-initrd only allowed with -kernel option");
4399 exit(1);
4400 }
4401
4402 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4403 /* fall back to the -kernel/-append */
4404 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4405 }
4406
4407 os_set_line_buffering();
4408
4409 /* spice needs the timers to be initialized by this point */
4410 qemu_spice_init();
4411
4412 cpu_ticks_init();
4413 if (icount_opts) {
4414 if (!tcg_enabled()) {
4415 error_report("-icount is not allowed with hardware virtualization");
4416 exit(1);
4417 }
4418 configure_icount(icount_opts, &error_abort);
4419 qemu_opts_del(icount_opts);
4420 }
4421
4422 if (tcg_enabled()) {
4423 qemu_tcg_configure(accel_opts, &error_fatal);
4424 }
4425
4426 if (default_net) {
4427 QemuOptsList *net = qemu_find_opts("net");
4428 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4429 #ifdef CONFIG_SLIRP
4430 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4431 #endif
4432 }
4433
4434 if (net_init_clients(&err) < 0) {
4435 error_report_err(err);
4436 exit(1);
4437 }
4438
4439 qemu_opts_foreach(qemu_find_opts("object"),
4440 user_creatable_add_opts_foreach,
4441 object_create_delayed, &error_fatal);
4442
4443 tpm_init();
4444
4445 /* init the bluetooth world */
4446 if (foreach_device_config(DEV_BT, bt_parse))
4447 exit(1);
4448
4449 if (!xen_enabled()) {
4450 /* On 32-bit hosts, QEMU is limited by virtual address space */
4451 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4452 error_report("at most 2047 MB RAM can be simulated");
4453 exit(1);
4454 }
4455 }
4456
4457 blk_mig_init();
4458 ram_mig_init();
4459 dirty_bitmap_mig_init();
4460
4461 /* If the currently selected machine wishes to override the units-per-bus
4462 * property of its default HBA interface type, do so now. */
4463 if (machine_class->units_per_default_bus) {
4464 override_max_devs(machine_class->block_default_type,
4465 machine_class->units_per_default_bus);
4466 }
4467
4468 /* open the virtual block devices */
4469 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4470 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4471
4472 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4473 loc_push_restore(&bdo->loc);
4474 qmp_blockdev_add(bdo->bdo, &error_fatal);
4475 loc_pop(&bdo->loc);
4476 qapi_free_BlockdevOptions(bdo->bdo);
4477 g_free(bdo);
4478 }
4479 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4480 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4481 NULL, NULL);
4482 }
4483 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4484 &machine_class->block_default_type, &error_fatal)) {
4485 /* We printed help */
4486 exit(0);
4487 }
4488
4489 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4490 CDROM_OPTS);
4491 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4492 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4493
4494 qemu_opts_foreach(qemu_find_opts("mon"),
4495 mon_init_func, NULL, &error_fatal);
4496
4497 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4498 exit(1);
4499 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4500 exit(1);
4501 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4502 exit(1);
4503 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4504 exit(1);
4505
4506 /* If no default VGA is requested, the default is "none". */
4507 if (default_vga) {
4508 if (machine_class->default_display) {
4509 vga_model = machine_class->default_display;
4510 } else if (vga_interface_available(VGA_CIRRUS)) {
4511 vga_model = "cirrus";
4512 } else if (vga_interface_available(VGA_STD)) {
4513 vga_model = "std";
4514 }
4515 }
4516 if (vga_model) {
4517 select_vgahw(vga_model);
4518 }
4519
4520 if (watchdog) {
4521 i = select_watchdog(watchdog);
4522 if (i > 0)
4523 exit (i == 1 ? 1 : 0);
4524 }
4525
4526 /* This checkpoint is required by replay to separate prior clock
4527 reading from the other reads, because timer polling functions query
4528 clock values from the log. */
4529 replay_checkpoint(CHECKPOINT_INIT);
4530 qdev_machine_init();
4531
4532 current_machine->ram_size = ram_size;
4533 current_machine->maxram_size = maxram_size;
4534 current_machine->ram_slots = ram_slots;
4535 current_machine->boot_order = boot_order;
4536
4537 /* parse features once if machine provides default cpu_type */
4538 current_machine->cpu_type = machine_class->default_cpu_type;
4539 if (cpu_model) {
4540 current_machine->cpu_type = parse_cpu_model(cpu_model);
4541 }
4542 parse_numa_opts(current_machine);
4543
4544 /* do monitor/qmp handling at preconfig state if requested */
4545 main_loop();
4546
4547 /* from here on runstate is RUN_STATE_PRELAUNCH */
4548 machine_run_board_init(current_machine);
4549
4550 realtime_init();
4551
4552 soundhw_init();
4553
4554 if (hax_enabled()) {
4555 hax_sync_vcpus();
4556 }
4557
4558 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4559 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4560
4561 /* init USB devices */
4562 if (machine_usb(current_machine)) {
4563 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4564 exit(1);
4565 }
4566
4567 /* Check if IGD GFX passthrough. */
4568 igd_gfx_passthru();
4569
4570 /* init generic devices */
4571 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4572 qemu_opts_foreach(qemu_find_opts("device"),
4573 device_init_func, NULL, &error_fatal);
4574
4575 cpu_synchronize_all_post_init();
4576
4577 rom_reset_order_override();
4578
4579 /* Did we create any drives that we failed to create a device for? */
4580 drive_check_orphaned();
4581
4582 /* Don't warn about the default network setup that you get if
4583 * no command line -net or -netdev options are specified. There
4584 * are two cases that we would otherwise complain about:
4585 * (1) board doesn't support a NIC but the implicit "-net nic"
4586 * requested one
4587 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4588 * sets up a nic that isn't connected to anything.
4589 */
4590 if (!default_net && (!qtest_enabled() || has_defaults)) {
4591 net_check_clients();
4592 }
4593
4594 if (boot_once) {
4595 qemu_boot_set(boot_once, &error_fatal);
4596 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4597 }
4598
4599 /* init local displays */
4600 ds = init_displaystate();
4601 qemu_display_init(ds, &dpy);
4602
4603 /* must be after terminal init, SDL library changes signal handlers */
4604 os_setup_signal_handling();
4605
4606 /* init remote displays */
4607 #ifdef CONFIG_VNC
4608 qemu_opts_foreach(qemu_find_opts("vnc"),
4609 vnc_init_func, NULL, &error_fatal);
4610 #endif
4611
4612 if (using_spice) {
4613 qemu_spice_display_init();
4614 }
4615
4616 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4617 exit(1);
4618 }
4619
4620 qdev_machine_creation_done();
4621
4622 /* TODO: once all bus devices are qdevified, this should be done
4623 * when bus is created by qdev.c */
4624 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4625 qemu_run_machine_init_done_notifiers();
4626
4627 if (rom_check_and_register_reset() != 0) {
4628 error_report("rom check and register reset failed");
4629 exit(1);
4630 }
4631
4632 replay_start();
4633
4634 /* This checkpoint is required by replay to separate prior clock
4635 reading from the other reads, because timer polling functions query
4636 clock values from the log. */
4637 replay_checkpoint(CHECKPOINT_RESET);
4638 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4639 register_global_state();
4640 if (loadvm) {
4641 Error *local_err = NULL;
4642 if (load_snapshot(loadvm, &local_err) < 0) {
4643 error_report_err(local_err);
4644 autostart = 0;
4645 exit(1);
4646 }
4647 }
4648 if (replay_mode != REPLAY_MODE_NONE) {
4649 replay_vmstate_init();
4650 }
4651
4652 qdev_prop_check_globals();
4653 if (vmstate_dump_file) {
4654 /* dump and exit */
4655 dump_vmstate_json_to_file(vmstate_dump_file);
4656 return 0;
4657 }
4658
4659 if (incoming) {
4660 Error *local_err = NULL;
4661 qemu_start_incoming_migration(incoming, &local_err);
4662 if (local_err) {
4663 error_reportf_err(local_err, "-incoming %s: ", incoming);
4664 exit(1);
4665 }
4666 } else if (autostart) {
4667 vm_start();
4668 }
4669
4670 accel_setup_post(current_machine);
4671 os_setup_post();
4672
4673 main_loop();
4674
4675 gdbserver_cleanup();
4676
4677 /* No more vcpu or device emulation activity beyond this point */
4678 vm_shutdown();
4679
4680 job_cancel_sync_all();
4681 bdrv_close_all();
4682
4683 res_free();
4684
4685 /* vhost-user must be cleaned up before chardevs. */
4686 tpm_cleanup();
4687 net_cleanup();
4688 audio_cleanup();
4689 monitor_cleanup();
4690 qemu_chr_cleanup();
4691 user_creatable_cleanup();
4692 migration_object_finalize();
4693 /* TODO: unref root container, check all devices are ok */
4694
4695 return 0;
4696 }
AR7 emulation for QEMU