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block: adding lzfse decompressing support as a module.
[mirror_qemu.git] / vl.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "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/smbios/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 uint8_t qemu_extra_params_fw[2];
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_STRING,
341 }, {
342 .name = "reboot-timeout",
343 .type = QEMU_OPT_STRING,
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 uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1580
1581 ShutdownCause qemu_shutdown_requested_get(void)
1582 {
1583 return shutdown_requested;
1584 }
1585
1586 ShutdownCause qemu_reset_requested_get(void)
1587 {
1588 return reset_requested;
1589 }
1590
1591 static int qemu_shutdown_requested(void)
1592 {
1593 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1594 }
1595
1596 static void qemu_kill_report(void)
1597 {
1598 if (!qtest_driver() && shutdown_signal) {
1599 if (shutdown_pid == 0) {
1600 /* This happens for eg ^C at the terminal, so it's worth
1601 * avoiding printing an odd message in that case.
1602 */
1603 error_report("terminating on signal %d", shutdown_signal);
1604 } else {
1605 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1606
1607 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1608 shutdown_signal, shutdown_pid,
1609 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1610 g_free(shutdown_cmd);
1611 }
1612 shutdown_signal = 0;
1613 }
1614 }
1615
1616 static ShutdownCause qemu_reset_requested(void)
1617 {
1618 ShutdownCause r = reset_requested;
1619
1620 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1621 reset_requested = SHUTDOWN_CAUSE_NONE;
1622 return r;
1623 }
1624 return SHUTDOWN_CAUSE_NONE;
1625 }
1626
1627 static int qemu_suspend_requested(void)
1628 {
1629 int r = suspend_requested;
1630 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1631 suspend_requested = 0;
1632 return r;
1633 }
1634 return false;
1635 }
1636
1637 static WakeupReason qemu_wakeup_requested(void)
1638 {
1639 return wakeup_reason;
1640 }
1641
1642 static int qemu_powerdown_requested(void)
1643 {
1644 int r = powerdown_requested;
1645 powerdown_requested = 0;
1646 return r;
1647 }
1648
1649 static int qemu_debug_requested(void)
1650 {
1651 int r = debug_requested;
1652 debug_requested = 0;
1653 return r;
1654 }
1655
1656 void qemu_exit_preconfig_request(void)
1657 {
1658 preconfig_exit_requested = true;
1659 }
1660
1661 /*
1662 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1663 */
1664 void qemu_system_reset(ShutdownCause reason)
1665 {
1666 MachineClass *mc;
1667
1668 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1669
1670 cpu_synchronize_all_states();
1671
1672 if (mc && mc->reset) {
1673 mc->reset();
1674 } else {
1675 qemu_devices_reset();
1676 }
1677 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1678 qapi_event_send_reset(shutdown_caused_by_guest(reason));
1679 }
1680 cpu_synchronize_all_post_reset();
1681 }
1682
1683 void qemu_system_guest_panicked(GuestPanicInformation *info)
1684 {
1685 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1686
1687 if (current_cpu) {
1688 current_cpu->crash_occurred = true;
1689 }
1690 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1691 !!info, info);
1692 vm_stop(RUN_STATE_GUEST_PANICKED);
1693 if (!no_shutdown) {
1694 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1695 !!info, info);
1696 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1697 }
1698
1699 if (info) {
1700 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1701 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1702 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1703 info->u.hyper_v.arg1,
1704 info->u.hyper_v.arg2,
1705 info->u.hyper_v.arg3,
1706 info->u.hyper_v.arg4,
1707 info->u.hyper_v.arg5);
1708 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1709 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1710 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1711 info->u.s390.core,
1712 S390CrashReason_str(info->u.s390.reason),
1713 info->u.s390.psw_mask,
1714 info->u.s390.psw_addr);
1715 }
1716 qapi_free_GuestPanicInformation(info);
1717 }
1718 }
1719
1720 void qemu_system_reset_request(ShutdownCause reason)
1721 {
1722 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1723 shutdown_requested = reason;
1724 } else {
1725 reset_requested = reason;
1726 }
1727 cpu_stop_current();
1728 qemu_notify_event();
1729 }
1730
1731 static void qemu_system_suspend(void)
1732 {
1733 pause_all_vcpus();
1734 notifier_list_notify(&suspend_notifiers, NULL);
1735 runstate_set(RUN_STATE_SUSPENDED);
1736 qapi_event_send_suspend();
1737 }
1738
1739 void qemu_system_suspend_request(void)
1740 {
1741 if (runstate_check(RUN_STATE_SUSPENDED)) {
1742 return;
1743 }
1744 suspend_requested = 1;
1745 cpu_stop_current();
1746 qemu_notify_event();
1747 }
1748
1749 void qemu_register_suspend_notifier(Notifier *notifier)
1750 {
1751 notifier_list_add(&suspend_notifiers, notifier);
1752 }
1753
1754 void qemu_system_wakeup_request(WakeupReason reason)
1755 {
1756 trace_system_wakeup_request(reason);
1757
1758 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1759 return;
1760 }
1761 if (!(wakeup_reason_mask & (1 << reason))) {
1762 return;
1763 }
1764 runstate_set(RUN_STATE_RUNNING);
1765 wakeup_reason = reason;
1766 qemu_notify_event();
1767 }
1768
1769 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1770 {
1771 if (enabled) {
1772 wakeup_reason_mask |= (1 << reason);
1773 } else {
1774 wakeup_reason_mask &= ~(1 << reason);
1775 }
1776 }
1777
1778 void qemu_register_wakeup_notifier(Notifier *notifier)
1779 {
1780 notifier_list_add(&wakeup_notifiers, notifier);
1781 }
1782
1783 void qemu_system_killed(int signal, pid_t pid)
1784 {
1785 shutdown_signal = signal;
1786 shutdown_pid = pid;
1787 no_shutdown = 0;
1788
1789 /* Cannot call qemu_system_shutdown_request directly because
1790 * we are in a signal handler.
1791 */
1792 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1793 qemu_notify_event();
1794 }
1795
1796 void qemu_system_shutdown_request(ShutdownCause reason)
1797 {
1798 trace_qemu_system_shutdown_request(reason);
1799 replay_shutdown_request(reason);
1800 shutdown_requested = reason;
1801 qemu_notify_event();
1802 }
1803
1804 static void qemu_system_powerdown(void)
1805 {
1806 qapi_event_send_powerdown();
1807 notifier_list_notify(&powerdown_notifiers, NULL);
1808 }
1809
1810 void qemu_system_powerdown_request(void)
1811 {
1812 trace_qemu_system_powerdown_request();
1813 powerdown_requested = 1;
1814 qemu_notify_event();
1815 }
1816
1817 void qemu_register_powerdown_notifier(Notifier *notifier)
1818 {
1819 notifier_list_add(&powerdown_notifiers, notifier);
1820 }
1821
1822 void qemu_system_debug_request(void)
1823 {
1824 debug_requested = 1;
1825 qemu_notify_event();
1826 }
1827
1828 static bool main_loop_should_exit(void)
1829 {
1830 RunState r;
1831 ShutdownCause request;
1832
1833 if (preconfig_exit_requested) {
1834 if (runstate_check(RUN_STATE_PRECONFIG)) {
1835 runstate_set(RUN_STATE_PRELAUNCH);
1836 }
1837 preconfig_exit_requested = false;
1838 return true;
1839 }
1840 if (qemu_debug_requested()) {
1841 vm_stop(RUN_STATE_DEBUG);
1842 }
1843 if (qemu_suspend_requested()) {
1844 qemu_system_suspend();
1845 }
1846 request = qemu_shutdown_requested();
1847 if (request) {
1848 qemu_kill_report();
1849 qapi_event_send_shutdown(shutdown_caused_by_guest(request));
1850 if (no_shutdown) {
1851 vm_stop(RUN_STATE_SHUTDOWN);
1852 } else {
1853 return true;
1854 }
1855 }
1856 request = qemu_reset_requested();
1857 if (request) {
1858 pause_all_vcpus();
1859 qemu_system_reset(request);
1860 resume_all_vcpus();
1861 if (!runstate_check(RUN_STATE_RUNNING) &&
1862 !runstate_check(RUN_STATE_INMIGRATE)) {
1863 runstate_set(RUN_STATE_PRELAUNCH);
1864 }
1865 }
1866 if (qemu_wakeup_requested()) {
1867 pause_all_vcpus();
1868 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1869 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1870 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1871 resume_all_vcpus();
1872 qapi_event_send_wakeup();
1873 }
1874 if (qemu_powerdown_requested()) {
1875 qemu_system_powerdown();
1876 }
1877 if (qemu_vmstop_requested(&r)) {
1878 vm_stop(r);
1879 }
1880 return false;
1881 }
1882
1883 static void main_loop(void)
1884 {
1885 #ifdef CONFIG_PROFILER
1886 int64_t ti;
1887 #endif
1888 while (!main_loop_should_exit()) {
1889 #ifdef CONFIG_PROFILER
1890 ti = profile_getclock();
1891 #endif
1892 main_loop_wait(false);
1893 #ifdef CONFIG_PROFILER
1894 dev_time += profile_getclock() - ti;
1895 #endif
1896 }
1897 }
1898
1899 static void version(void)
1900 {
1901 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1902 QEMU_COPYRIGHT "\n");
1903 }
1904
1905 static void help(int exitcode)
1906 {
1907 version();
1908 printf("usage: %s [options] [disk_image]\n\n"
1909 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1910 error_get_progname());
1911
1912 #define QEMU_OPTIONS_GENERATE_HELP
1913 #include "qemu-options-wrapper.h"
1914
1915 printf("\nDuring emulation, the following keys are useful:\n"
1916 "ctrl-alt-f toggle full screen\n"
1917 "ctrl-alt-n switch to virtual console 'n'\n"
1918 "ctrl-alt toggle mouse and keyboard grab\n"
1919 "\n"
1920 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1921 "\n"
1922 QEMU_HELP_BOTTOM "\n");
1923
1924 exit(exitcode);
1925 }
1926
1927 #define HAS_ARG 0x0001
1928
1929 typedef struct QEMUOption {
1930 const char *name;
1931 int flags;
1932 int index;
1933 uint32_t arch_mask;
1934 } QEMUOption;
1935
1936 static const QEMUOption qemu_options[] = {
1937 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1938 #define QEMU_OPTIONS_GENERATE_OPTIONS
1939 #include "qemu-options-wrapper.h"
1940 { NULL },
1941 };
1942
1943 typedef struct VGAInterfaceInfo {
1944 const char *opt_name; /* option name */
1945 const char *name; /* human-readable name */
1946 /* Class names indicating that support is available.
1947 * If no class is specified, the interface is always available */
1948 const char *class_names[2];
1949 } VGAInterfaceInfo;
1950
1951 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1952 [VGA_NONE] = {
1953 .opt_name = "none",
1954 },
1955 [VGA_STD] = {
1956 .opt_name = "std",
1957 .name = "standard VGA",
1958 .class_names = { "VGA", "isa-vga" },
1959 },
1960 [VGA_CIRRUS] = {
1961 .opt_name = "cirrus",
1962 .name = "Cirrus VGA",
1963 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1964 },
1965 [VGA_VMWARE] = {
1966 .opt_name = "vmware",
1967 .name = "VMWare SVGA",
1968 .class_names = { "vmware-svga" },
1969 },
1970 [VGA_VIRTIO] = {
1971 .opt_name = "virtio",
1972 .name = "Virtio VGA",
1973 .class_names = { "virtio-vga" },
1974 },
1975 [VGA_QXL] = {
1976 .opt_name = "qxl",
1977 .name = "QXL VGA",
1978 .class_names = { "qxl-vga" },
1979 },
1980 [VGA_TCX] = {
1981 .opt_name = "tcx",
1982 .name = "TCX framebuffer",
1983 .class_names = { "SUNW,tcx" },
1984 },
1985 [VGA_CG3] = {
1986 .opt_name = "cg3",
1987 .name = "CG3 framebuffer",
1988 .class_names = { "cgthree" },
1989 },
1990 [VGA_XENFB] = {
1991 .opt_name = "xenfb",
1992 },
1993 };
1994
1995 static bool vga_interface_available(VGAInterfaceType t)
1996 {
1997 VGAInterfaceInfo *ti = &vga_interfaces[t];
1998
1999 assert(t < VGA_TYPE_MAX);
2000 return !ti->class_names[0] ||
2001 object_class_by_name(ti->class_names[0]) ||
2002 object_class_by_name(ti->class_names[1]);
2003 }
2004
2005 static void select_vgahw(const char *p)
2006 {
2007 const char *opts;
2008 int t;
2009
2010 assert(vga_interface_type == VGA_NONE);
2011 for (t = 0; t < VGA_TYPE_MAX; t++) {
2012 VGAInterfaceInfo *ti = &vga_interfaces[t];
2013 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2014 if (!vga_interface_available(t)) {
2015 error_report("%s not available", ti->name);
2016 exit(1);
2017 }
2018 vga_interface_type = t;
2019 break;
2020 }
2021 }
2022 if (t == VGA_TYPE_MAX) {
2023 invalid_vga:
2024 error_report("unknown vga type: %s", p);
2025 exit(1);
2026 }
2027 while (*opts) {
2028 const char *nextopt;
2029
2030 if (strstart(opts, ",retrace=", &nextopt)) {
2031 opts = nextopt;
2032 if (strstart(opts, "dumb", &nextopt))
2033 vga_retrace_method = VGA_RETRACE_DUMB;
2034 else if (strstart(opts, "precise", &nextopt))
2035 vga_retrace_method = VGA_RETRACE_PRECISE;
2036 else goto invalid_vga;
2037 } else goto invalid_vga;
2038 opts = nextopt;
2039 }
2040 }
2041
2042 static void parse_display_qapi(const char *optarg)
2043 {
2044 DisplayOptions *opts;
2045 Visitor *v;
2046
2047 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2048
2049 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2050 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2051
2052 qapi_free_DisplayOptions(opts);
2053 visit_free(v);
2054 }
2055
2056 DisplayOptions *qmp_query_display_options(Error **errp)
2057 {
2058 return QAPI_CLONE(DisplayOptions, &dpy);
2059 }
2060
2061 static void parse_display(const char *p)
2062 {
2063 const char *opts;
2064
2065 if (strstart(p, "sdl", &opts)) {
2066 /*
2067 * sdl DisplayType needs hand-crafted parser instead of
2068 * parse_display_qapi() due to some options not in
2069 * DisplayOptions, specifically:
2070 * - frame
2071 * Already deprecated.
2072 * - ctrl_grab + alt_grab
2073 * Not clear yet what happens to them long-term. Should
2074 * replaced by something better or deprecated and dropped.
2075 */
2076 dpy.type = DISPLAY_TYPE_SDL;
2077 while (*opts) {
2078 const char *nextopt;
2079
2080 if (strstart(opts, ",frame=", &nextopt)) {
2081 g_printerr("The frame= sdl option is deprecated, and will be\n"
2082 "removed in a future release.\n");
2083 opts = nextopt;
2084 if (strstart(opts, "on", &nextopt)) {
2085 no_frame = 0;
2086 } else if (strstart(opts, "off", &nextopt)) {
2087 no_frame = 1;
2088 } else {
2089 goto invalid_sdl_args;
2090 }
2091 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2092 opts = nextopt;
2093 if (strstart(opts, "on", &nextopt)) {
2094 alt_grab = 1;
2095 } else if (strstart(opts, "off", &nextopt)) {
2096 alt_grab = 0;
2097 } else {
2098 goto invalid_sdl_args;
2099 }
2100 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2101 opts = nextopt;
2102 if (strstart(opts, "on", &nextopt)) {
2103 ctrl_grab = 1;
2104 } else if (strstart(opts, "off", &nextopt)) {
2105 ctrl_grab = 0;
2106 } else {
2107 goto invalid_sdl_args;
2108 }
2109 } else if (strstart(opts, ",window_close=", &nextopt)) {
2110 opts = nextopt;
2111 dpy.has_window_close = true;
2112 if (strstart(opts, "on", &nextopt)) {
2113 dpy.window_close = true;
2114 } else if (strstart(opts, "off", &nextopt)) {
2115 dpy.window_close = false;
2116 } else {
2117 goto invalid_sdl_args;
2118 }
2119 } else if (strstart(opts, ",gl=", &nextopt)) {
2120 opts = nextopt;
2121 dpy.has_gl = true;
2122 if (strstart(opts, "on", &nextopt)) {
2123 dpy.gl = DISPLAYGL_MODE_ON;
2124 } else if (strstart(opts, "core", &nextopt)) {
2125 dpy.gl = DISPLAYGL_MODE_CORE;
2126 } else if (strstart(opts, "es", &nextopt)) {
2127 dpy.gl = DISPLAYGL_MODE_ES;
2128 } else if (strstart(opts, "off", &nextopt)) {
2129 dpy.gl = DISPLAYGL_MODE_OFF;
2130 } else {
2131 goto invalid_sdl_args;
2132 }
2133 } else {
2134 invalid_sdl_args:
2135 error_report("invalid SDL option string");
2136 exit(1);
2137 }
2138 opts = nextopt;
2139 }
2140 } else if (strstart(p, "vnc", &opts)) {
2141 /*
2142 * vnc isn't a (local) DisplayType but a protocol for remote
2143 * display access.
2144 */
2145 if (*opts == '=') {
2146 vnc_parse(opts + 1, &error_fatal);
2147 } else {
2148 error_report("VNC requires a display argument vnc=<display>");
2149 exit(1);
2150 }
2151 } else {
2152 parse_display_qapi(p);
2153 }
2154 }
2155
2156 char *qemu_find_file(int type, const char *name)
2157 {
2158 int i;
2159 const char *subdir;
2160 char *buf;
2161
2162 /* Try the name as a straight path first */
2163 if (access(name, R_OK) == 0) {
2164 trace_load_file(name, name);
2165 return g_strdup(name);
2166 }
2167
2168 switch (type) {
2169 case QEMU_FILE_TYPE_BIOS:
2170 subdir = "";
2171 break;
2172 case QEMU_FILE_TYPE_KEYMAP:
2173 subdir = "keymaps/";
2174 break;
2175 default:
2176 abort();
2177 }
2178
2179 for (i = 0; i < data_dir_idx; i++) {
2180 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2181 if (access(buf, R_OK) == 0) {
2182 trace_load_file(name, buf);
2183 return buf;
2184 }
2185 g_free(buf);
2186 }
2187 return NULL;
2188 }
2189
2190 static void qemu_add_data_dir(const char *path)
2191 {
2192 int i;
2193
2194 if (path == NULL) {
2195 return;
2196 }
2197 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2198 return;
2199 }
2200 for (i = 0; i < data_dir_idx; i++) {
2201 if (strcmp(data_dir[i], path) == 0) {
2202 return; /* duplicate */
2203 }
2204 }
2205 data_dir[data_dir_idx++] = g_strdup(path);
2206 }
2207
2208 static inline bool nonempty_str(const char *str)
2209 {
2210 return str && *str;
2211 }
2212
2213 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2214 {
2215 gchar *buf;
2216 size_t size;
2217 const char *name, *file, *str;
2218 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2219
2220 if (fw_cfg == NULL) {
2221 error_setg(errp, "fw_cfg device not available");
2222 return -1;
2223 }
2224 name = qemu_opt_get(opts, "name");
2225 file = qemu_opt_get(opts, "file");
2226 str = qemu_opt_get(opts, "string");
2227
2228 /* we need name and either a file or the content string */
2229 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2230 error_setg(errp, "invalid argument(s)");
2231 return -1;
2232 }
2233 if (nonempty_str(file) && nonempty_str(str)) {
2234 error_setg(errp, "file and string are mutually exclusive");
2235 return -1;
2236 }
2237 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2238 error_setg(errp, "name too long (max. %d char)",
2239 FW_CFG_MAX_FILE_PATH - 1);
2240 return -1;
2241 }
2242 if (strncmp(name, "opt/", 4) != 0) {
2243 warn_report("externally provided fw_cfg item names "
2244 "should be prefixed with \"opt/\"");
2245 }
2246 if (nonempty_str(str)) {
2247 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2248 buf = g_memdup(str, size);
2249 } else {
2250 GError *err = NULL;
2251 if (!g_file_get_contents(file, &buf, &size, &err)) {
2252 error_setg(errp, "can't load %s: %s", file, err->message);
2253 g_error_free(err);
2254 return -1;
2255 }
2256 }
2257 /* For legacy, keep user files in a specific global order. */
2258 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2259 fw_cfg_add_file(fw_cfg, name, buf, size);
2260 fw_cfg_reset_order_override(fw_cfg);
2261 return 0;
2262 }
2263
2264 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2265 {
2266 return qdev_device_help(opts);
2267 }
2268
2269 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2270 {
2271 DeviceState *dev;
2272
2273 dev = qdev_device_add(opts, errp);
2274 if (!dev) {
2275 return -1;
2276 }
2277 object_unref(OBJECT(dev));
2278 return 0;
2279 }
2280
2281 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2282 {
2283 Error *local_err = NULL;
2284
2285 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2286 if (local_err) {
2287 error_propagate(errp, local_err);
2288 return -1;
2289 }
2290 exit(0);
2291 }
2292 return 0;
2293 }
2294
2295 #ifdef CONFIG_VIRTFS
2296 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2297 {
2298 return qemu_fsdev_add(opts, errp);
2299 }
2300 #endif
2301
2302 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2303 {
2304 Chardev *chr;
2305 const char *chardev;
2306 const char *mode;
2307 int flags;
2308
2309 mode = qemu_opt_get(opts, "mode");
2310 if (mode == NULL) {
2311 mode = "readline";
2312 }
2313 if (strcmp(mode, "readline") == 0) {
2314 flags = MONITOR_USE_READLINE;
2315 } else if (strcmp(mode, "control") == 0) {
2316 flags = MONITOR_USE_CONTROL;
2317 } else {
2318 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2319 return -1;
2320 }
2321
2322 if (qemu_opt_get_bool(opts, "pretty", 0))
2323 flags |= MONITOR_USE_PRETTY;
2324
2325 chardev = qemu_opt_get(opts, "chardev");
2326 if (!chardev) {
2327 error_report("chardev is required");
2328 exit(1);
2329 }
2330 chr = qemu_chr_find(chardev);
2331 if (chr == NULL) {
2332 error_setg(errp, "chardev \"%s\" not found", chardev);
2333 return -1;
2334 }
2335
2336 monitor_init(chr, flags);
2337 return 0;
2338 }
2339
2340 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2341 {
2342 static int monitor_device_index = 0;
2343 QemuOpts *opts;
2344 const char *p;
2345 char label[32];
2346
2347 if (strstart(optarg, "chardev:", &p)) {
2348 snprintf(label, sizeof(label), "%s", p);
2349 } else {
2350 snprintf(label, sizeof(label), "compat_monitor%d",
2351 monitor_device_index);
2352 opts = qemu_chr_parse_compat(label, optarg, true);
2353 if (!opts) {
2354 error_report("parse error: %s", optarg);
2355 exit(1);
2356 }
2357 }
2358
2359 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2360 qemu_opt_set(opts, "mode", mode, &error_abort);
2361 qemu_opt_set(opts, "chardev", label, &error_abort);
2362 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2363 monitor_device_index++;
2364 }
2365
2366 struct device_config {
2367 enum {
2368 DEV_USB, /* -usbdevice */
2369 DEV_BT, /* -bt */
2370 DEV_SERIAL, /* -serial */
2371 DEV_PARALLEL, /* -parallel */
2372 DEV_VIRTCON, /* -virtioconsole */
2373 DEV_DEBUGCON, /* -debugcon */
2374 DEV_GDB, /* -gdb, -s */
2375 DEV_SCLP, /* s390 sclp */
2376 } type;
2377 const char *cmdline;
2378 Location loc;
2379 QTAILQ_ENTRY(device_config) next;
2380 };
2381
2382 static QTAILQ_HEAD(, device_config) device_configs =
2383 QTAILQ_HEAD_INITIALIZER(device_configs);
2384
2385 static void add_device_config(int type, const char *cmdline)
2386 {
2387 struct device_config *conf;
2388
2389 conf = g_malloc0(sizeof(*conf));
2390 conf->type = type;
2391 conf->cmdline = cmdline;
2392 loc_save(&conf->loc);
2393 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2394 }
2395
2396 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2397 {
2398 struct device_config *conf;
2399 int rc;
2400
2401 QTAILQ_FOREACH(conf, &device_configs, next) {
2402 if (conf->type != type)
2403 continue;
2404 loc_push_restore(&conf->loc);
2405 rc = func(conf->cmdline);
2406 loc_pop(&conf->loc);
2407 if (rc) {
2408 return rc;
2409 }
2410 }
2411 return 0;
2412 }
2413
2414 static int serial_parse(const char *devname)
2415 {
2416 int index = num_serial_hds;
2417 char label[32];
2418
2419 if (strcmp(devname, "none") == 0)
2420 return 0;
2421 snprintf(label, sizeof(label), "serial%d", index);
2422 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2423
2424 serial_hds[index] = qemu_chr_new_mux_mon(label, devname);
2425 if (!serial_hds[index]) {
2426 error_report("could not connect serial device"
2427 " to character backend '%s'", devname);
2428 return -1;
2429 }
2430 num_serial_hds++;
2431 return 0;
2432 }
2433
2434 Chardev *serial_hd(int i)
2435 {
2436 assert(i >= 0);
2437 if (i < num_serial_hds) {
2438 return serial_hds[i];
2439 }
2440 return NULL;
2441 }
2442
2443 int serial_max_hds(void)
2444 {
2445 return num_serial_hds;
2446 }
2447
2448 static int parallel_parse(const char *devname)
2449 {
2450 static int index = 0;
2451 char label[32];
2452
2453 if (strcmp(devname, "none") == 0)
2454 return 0;
2455 if (index == MAX_PARALLEL_PORTS) {
2456 error_report("too many parallel ports");
2457 exit(1);
2458 }
2459 snprintf(label, sizeof(label), "parallel%d", index);
2460 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname);
2461 if (!parallel_hds[index]) {
2462 error_report("could not connect parallel device"
2463 " to character backend '%s'", devname);
2464 return -1;
2465 }
2466 index++;
2467 return 0;
2468 }
2469
2470 static int virtcon_parse(const char *devname)
2471 {
2472 QemuOptsList *device = qemu_find_opts("device");
2473 static int index = 0;
2474 char label[32];
2475 QemuOpts *bus_opts, *dev_opts;
2476
2477 if (strcmp(devname, "none") == 0)
2478 return 0;
2479 if (index == MAX_VIRTIO_CONSOLES) {
2480 error_report("too many virtio consoles");
2481 exit(1);
2482 }
2483
2484 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2485 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2486
2487 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2488 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2489
2490 snprintf(label, sizeof(label), "virtcon%d", index);
2491 virtcon_hds[index] = qemu_chr_new_mux_mon(label, devname);
2492 if (!virtcon_hds[index]) {
2493 error_report("could not connect virtio console"
2494 " to character backend '%s'", devname);
2495 return -1;
2496 }
2497 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2498
2499 index++;
2500 return 0;
2501 }
2502
2503 static int debugcon_parse(const char *devname)
2504 {
2505 QemuOpts *opts;
2506
2507 if (!qemu_chr_new_mux_mon("debugcon", devname)) {
2508 error_report("invalid character backend '%s'", devname);
2509 exit(1);
2510 }
2511 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2512 if (!opts) {
2513 error_report("already have a debugcon device");
2514 exit(1);
2515 }
2516 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2517 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2518 return 0;
2519 }
2520
2521 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2522 {
2523 const MachineClass *mc1 = a, *mc2 = b;
2524 int res;
2525
2526 if (mc1->family == NULL) {
2527 if (mc2->family == NULL) {
2528 /* Compare standalone machine types against each other; they sort
2529 * in increasing order.
2530 */
2531 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2532 object_class_get_name(OBJECT_CLASS(mc2)));
2533 }
2534
2535 /* Standalone machine types sort after families. */
2536 return 1;
2537 }
2538
2539 if (mc2->family == NULL) {
2540 /* Families sort before standalone machine types. */
2541 return -1;
2542 }
2543
2544 /* Families sort between each other alphabetically increasingly. */
2545 res = strcmp(mc1->family, mc2->family);
2546 if (res != 0) {
2547 return res;
2548 }
2549
2550 /* Within the same family, machine types sort in decreasing order. */
2551 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2552 object_class_get_name(OBJECT_CLASS(mc1)));
2553 }
2554
2555 static MachineClass *machine_parse(const char *name)
2556 {
2557 MachineClass *mc = NULL;
2558 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2559
2560 if (name) {
2561 mc = find_machine(name);
2562 }
2563 if (mc) {
2564 g_slist_free(machines);
2565 return mc;
2566 }
2567 if (name && !is_help_option(name)) {
2568 error_report("unsupported machine type");
2569 error_printf("Use -machine help to list supported machines\n");
2570 } else {
2571 printf("Supported machines are:\n");
2572 machines = g_slist_sort(machines, machine_class_cmp);
2573 for (el = machines; el; el = el->next) {
2574 MachineClass *mc = el->data;
2575 if (mc->alias) {
2576 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2577 }
2578 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2579 mc->is_default ? " (default)" : "",
2580 mc->deprecation_reason ? " (deprecated)" : "");
2581 }
2582 }
2583
2584 g_slist_free(machines);
2585 exit(!name || !is_help_option(name));
2586 }
2587
2588 void qemu_add_exit_notifier(Notifier *notify)
2589 {
2590 notifier_list_add(&exit_notifiers, notify);
2591 }
2592
2593 void qemu_remove_exit_notifier(Notifier *notify)
2594 {
2595 notifier_remove(notify);
2596 }
2597
2598 static void qemu_run_exit_notifiers(void)
2599 {
2600 notifier_list_notify(&exit_notifiers, NULL);
2601 }
2602
2603 static const char *pid_file;
2604 static Notifier qemu_unlink_pidfile_notifier;
2605
2606 static void qemu_unlink_pidfile(Notifier *n, void *data)
2607 {
2608 if (pid_file) {
2609 unlink(pid_file);
2610 }
2611 }
2612
2613 bool machine_init_done;
2614
2615 void qemu_add_machine_init_done_notifier(Notifier *notify)
2616 {
2617 notifier_list_add(&machine_init_done_notifiers, notify);
2618 if (machine_init_done) {
2619 notify->notify(notify, NULL);
2620 }
2621 }
2622
2623 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2624 {
2625 notifier_remove(notify);
2626 }
2627
2628 static void qemu_run_machine_init_done_notifiers(void)
2629 {
2630 machine_init_done = true;
2631 notifier_list_notify(&machine_init_done_notifiers, NULL);
2632 }
2633
2634 static const QEMUOption *lookup_opt(int argc, char **argv,
2635 const char **poptarg, int *poptind)
2636 {
2637 const QEMUOption *popt;
2638 int optind = *poptind;
2639 char *r = argv[optind];
2640 const char *optarg;
2641
2642 loc_set_cmdline(argv, optind, 1);
2643 optind++;
2644 /* Treat --foo the same as -foo. */
2645 if (r[1] == '-')
2646 r++;
2647 popt = qemu_options;
2648 for(;;) {
2649 if (!popt->name) {
2650 error_report("invalid option");
2651 exit(1);
2652 }
2653 if (!strcmp(popt->name, r + 1))
2654 break;
2655 popt++;
2656 }
2657 if (popt->flags & HAS_ARG) {
2658 if (optind >= argc) {
2659 error_report("requires an argument");
2660 exit(1);
2661 }
2662 optarg = argv[optind++];
2663 loc_set_cmdline(argv, optind - 2, 2);
2664 } else {
2665 optarg = NULL;
2666 }
2667
2668 *poptarg = optarg;
2669 *poptind = optind;
2670
2671 return popt;
2672 }
2673
2674 static MachineClass *select_machine(void)
2675 {
2676 MachineClass *machine_class = find_default_machine();
2677 const char *optarg;
2678 QemuOpts *opts;
2679 Location loc;
2680
2681 loc_push_none(&loc);
2682
2683 opts = qemu_get_machine_opts();
2684 qemu_opts_loc_restore(opts);
2685
2686 optarg = qemu_opt_get(opts, "type");
2687 if (optarg) {
2688 machine_class = machine_parse(optarg);
2689 }
2690
2691 if (!machine_class) {
2692 error_report("No machine specified, and there is no default");
2693 error_printf("Use -machine help to list supported machines\n");
2694 exit(1);
2695 }
2696
2697 loc_pop(&loc);
2698 return machine_class;
2699 }
2700
2701 static int machine_set_property(void *opaque,
2702 const char *name, const char *value,
2703 Error **errp)
2704 {
2705 Object *obj = OBJECT(opaque);
2706 Error *local_err = NULL;
2707 char *p, *qom_name;
2708
2709 if (strcmp(name, "type") == 0) {
2710 return 0;
2711 }
2712
2713 qom_name = g_strdup(name);
2714 for (p = qom_name; *p; p++) {
2715 if (*p == '_') {
2716 *p = '-';
2717 }
2718 }
2719
2720 object_property_parse(obj, value, qom_name, &local_err);
2721 g_free(qom_name);
2722
2723 if (local_err) {
2724 error_propagate(errp, local_err);
2725 return -1;
2726 }
2727
2728 return 0;
2729 }
2730
2731
2732 /*
2733 * Initial object creation happens before all other
2734 * QEMU data types are created. The majority of objects
2735 * can be created at this point. The rng-egd object
2736 * cannot be created here, as it depends on the chardev
2737 * already existing.
2738 */
2739 static bool object_create_initial(const char *type, QemuOpts *opts)
2740 {
2741 ObjectClass *klass;
2742
2743 if (is_help_option(type)) {
2744 GSList *l, *list;
2745
2746 printf("List of user creatable objects:\n");
2747 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2748 for (l = list; l != NULL; l = l->next) {
2749 ObjectClass *oc = OBJECT_CLASS(l->data);
2750 printf(" %s\n", object_class_get_name(oc));
2751 }
2752 g_slist_free(list);
2753 exit(0);
2754 }
2755
2756 klass = object_class_by_name(type);
2757 if (klass && qemu_opt_has_help_opt(opts)) {
2758 ObjectPropertyIterator iter;
2759 ObjectProperty *prop;
2760 GPtrArray *array = g_ptr_array_new();
2761 int i;
2762
2763 object_class_property_iter_init(&iter, klass);
2764 while ((prop = object_property_iter_next(&iter))) {
2765 GString *str;
2766
2767 if (!prop->set) {
2768 continue;
2769 }
2770
2771 str = g_string_new(NULL);
2772 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2773 if (prop->description) {
2774 if (str->len < 24) {
2775 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2776 }
2777 g_string_append_printf(str, " - %s", prop->description);
2778 }
2779 g_ptr_array_add(array, g_string_free(str, false));
2780 }
2781 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2782 if (array->len > 0) {
2783 printf("%s options:\n", type);
2784 } else {
2785 printf("There are no options for %s.\n", type);
2786 }
2787 for (i = 0; i < array->len; i++) {
2788 printf("%s\n", (char *)array->pdata[i]);
2789 }
2790 g_ptr_array_set_free_func(array, g_free);
2791 g_ptr_array_free(array, true);
2792 exit(0);
2793 }
2794
2795 if (g_str_equal(type, "rng-egd") ||
2796 g_str_has_prefix(type, "pr-manager-")) {
2797 return false;
2798 }
2799
2800 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2801 if (g_str_equal(type, "cryptodev-vhost-user")) {
2802 return false;
2803 }
2804 #endif
2805
2806 /*
2807 * return false for concrete netfilters since
2808 * they depend on netdevs already existing
2809 */
2810 if (g_str_equal(type, "filter-buffer") ||
2811 g_str_equal(type, "filter-dump") ||
2812 g_str_equal(type, "filter-mirror") ||
2813 g_str_equal(type, "filter-redirector") ||
2814 g_str_equal(type, "colo-compare") ||
2815 g_str_equal(type, "filter-rewriter") ||
2816 g_str_equal(type, "filter-replay")) {
2817 return false;
2818 }
2819
2820 /* Memory allocation by backends needs to be done
2821 * after configure_accelerator() (due to the tcg_enabled()
2822 * checks at memory_region_init_*()).
2823 *
2824 * Also, allocation of large amounts of memory may delay
2825 * chardev initialization for too long, and trigger timeouts
2826 * on software that waits for a monitor socket to be created
2827 * (e.g. libvirt).
2828 */
2829 if (g_str_has_prefix(type, "memory-backend-")) {
2830 return false;
2831 }
2832
2833 return true;
2834 }
2835
2836
2837 /*
2838 * The remainder of object creation happens after the
2839 * creation of chardev, fsdev, net clients and device data types.
2840 */
2841 static bool object_create_delayed(const char *type, QemuOpts *opts)
2842 {
2843 return !object_create_initial(type, opts);
2844 }
2845
2846
2847 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2848 MachineClass *mc)
2849 {
2850 uint64_t sz;
2851 const char *mem_str;
2852 const ram_addr_t default_ram_size = mc->default_ram_size;
2853 QemuOpts *opts = qemu_find_opts_singleton("memory");
2854 Location loc;
2855
2856 loc_push_none(&loc);
2857 qemu_opts_loc_restore(opts);
2858
2859 sz = 0;
2860 mem_str = qemu_opt_get(opts, "size");
2861 if (mem_str) {
2862 if (!*mem_str) {
2863 error_report("missing 'size' option value");
2864 exit(EXIT_FAILURE);
2865 }
2866
2867 sz = qemu_opt_get_size(opts, "size", ram_size);
2868
2869 /* Fix up legacy suffix-less format */
2870 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2871 uint64_t overflow_check = sz;
2872
2873 sz *= MiB;
2874 if (sz / MiB != overflow_check) {
2875 error_report("too large 'size' option value");
2876 exit(EXIT_FAILURE);
2877 }
2878 }
2879 }
2880
2881 /* backward compatibility behaviour for case "-m 0" */
2882 if (sz == 0) {
2883 sz = default_ram_size;
2884 }
2885
2886 sz = QEMU_ALIGN_UP(sz, 8192);
2887 ram_size = sz;
2888 if (ram_size != sz) {
2889 error_report("ram size too large");
2890 exit(EXIT_FAILURE);
2891 }
2892
2893 /* store value for the future use */
2894 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2895 *maxram_size = ram_size;
2896
2897 if (qemu_opt_get(opts, "maxmem")) {
2898 uint64_t slots;
2899
2900 sz = qemu_opt_get_size(opts, "maxmem", 0);
2901 slots = qemu_opt_get_number(opts, "slots", 0);
2902 if (sz < ram_size) {
2903 error_report("invalid value of -m option maxmem: "
2904 "maximum memory size (0x%" PRIx64 ") must be at least "
2905 "the initial memory size (0x" RAM_ADDR_FMT ")",
2906 sz, ram_size);
2907 exit(EXIT_FAILURE);
2908 } else if (slots && sz == ram_size) {
2909 error_report("invalid value of -m option maxmem: "
2910 "memory slots were specified but maximum memory size "
2911 "(0x%" PRIx64 ") is equal to the initial memory size "
2912 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2913 exit(EXIT_FAILURE);
2914 }
2915
2916 *maxram_size = sz;
2917 *ram_slots = slots;
2918 } else if (qemu_opt_get(opts, "slots")) {
2919 error_report("invalid -m option value: missing 'maxmem' option");
2920 exit(EXIT_FAILURE);
2921 }
2922
2923 loc_pop(&loc);
2924 }
2925
2926 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2927 {
2928 GlobalProperty *g;
2929
2930 g = g_malloc0(sizeof(*g));
2931 g->driver = qemu_opt_get(opts, "driver");
2932 g->property = qemu_opt_get(opts, "property");
2933 g->value = qemu_opt_get(opts, "value");
2934 g->user_provided = true;
2935 g->errp = &error_fatal;
2936 qdev_prop_register_global(g);
2937 return 0;
2938 }
2939
2940 static int qemu_read_default_config_file(void)
2941 {
2942 int ret;
2943
2944 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2945 if (ret < 0 && ret != -ENOENT) {
2946 return ret;
2947 }
2948
2949 return 0;
2950 }
2951
2952 static void user_register_global_props(void)
2953 {
2954 qemu_opts_foreach(qemu_find_opts("global"),
2955 global_init_func, NULL, NULL);
2956 }
2957
2958 /*
2959 * Note: we should see that these properties are actually having a
2960 * priority: accel < machine < user. This means e.g. when user
2961 * specifies something in "-global", it'll always be used with highest
2962 * priority than either machine/accelerator compat properties.
2963 */
2964 static void register_global_properties(MachineState *ms)
2965 {
2966 accel_register_compat_props(ms->accelerator);
2967 machine_register_compat_props(ms);
2968 user_register_global_props();
2969 }
2970
2971 int main(int argc, char **argv, char **envp)
2972 {
2973 int i;
2974 int snapshot, linux_boot;
2975 const char *initrd_filename;
2976 const char *kernel_filename, *kernel_cmdline;
2977 const char *boot_order = NULL;
2978 const char *boot_once = NULL;
2979 DisplayState *ds;
2980 QemuOpts *opts, *machine_opts;
2981 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2982 QemuOptsList *olist;
2983 int optind;
2984 const char *optarg;
2985 const char *loadvm = NULL;
2986 MachineClass *machine_class;
2987 const char *cpu_model;
2988 const char *vga_model = NULL;
2989 const char *qtest_chrdev = NULL;
2990 const char *qtest_log = NULL;
2991 const char *incoming = NULL;
2992 bool userconfig = true;
2993 bool nographic = false;
2994 int display_remote = 0;
2995 const char *log_mask = NULL;
2996 const char *log_file = NULL;
2997 char *trace_file = NULL;
2998 ram_addr_t maxram_size;
2999 uint64_t ram_slots = 0;
3000 FILE *vmstate_dump_file = NULL;
3001 Error *main_loop_err = NULL;
3002 Error *err = NULL;
3003 bool list_data_dirs = false;
3004 char *dir, **dirs;
3005 typedef struct BlockdevOptions_queue {
3006 BlockdevOptions *bdo;
3007 Location loc;
3008 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3009 } BlockdevOptions_queue;
3010 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3011 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3012
3013 module_call_init(MODULE_INIT_TRACE);
3014
3015 qemu_init_cpu_list();
3016 qemu_init_cpu_loop();
3017
3018 qemu_mutex_lock_iothread();
3019
3020 atexit(qemu_run_exit_notifiers);
3021 error_set_progname(argv[0]);
3022 qemu_init_exec_dir(argv[0]);
3023
3024 module_call_init(MODULE_INIT_QOM);
3025
3026 qemu_add_opts(&qemu_drive_opts);
3027 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3028 qemu_add_drive_opts(&qemu_common_drive_opts);
3029 qemu_add_drive_opts(&qemu_drive_opts);
3030 qemu_add_drive_opts(&bdrv_runtime_opts);
3031 qemu_add_opts(&qemu_chardev_opts);
3032 qemu_add_opts(&qemu_device_opts);
3033 qemu_add_opts(&qemu_netdev_opts);
3034 qemu_add_opts(&qemu_nic_opts);
3035 qemu_add_opts(&qemu_net_opts);
3036 qemu_add_opts(&qemu_rtc_opts);
3037 qemu_add_opts(&qemu_global_opts);
3038 qemu_add_opts(&qemu_mon_opts);
3039 qemu_add_opts(&qemu_trace_opts);
3040 qemu_add_opts(&qemu_option_rom_opts);
3041 qemu_add_opts(&qemu_machine_opts);
3042 qemu_add_opts(&qemu_accel_opts);
3043 qemu_add_opts(&qemu_mem_opts);
3044 qemu_add_opts(&qemu_smp_opts);
3045 qemu_add_opts(&qemu_boot_opts);
3046 qemu_add_opts(&qemu_add_fd_opts);
3047 qemu_add_opts(&qemu_object_opts);
3048 qemu_add_opts(&qemu_tpmdev_opts);
3049 qemu_add_opts(&qemu_realtime_opts);
3050 qemu_add_opts(&qemu_overcommit_opts);
3051 qemu_add_opts(&qemu_msg_opts);
3052 qemu_add_opts(&qemu_name_opts);
3053 qemu_add_opts(&qemu_numa_opts);
3054 qemu_add_opts(&qemu_icount_opts);
3055 qemu_add_opts(&qemu_semihosting_config_opts);
3056 qemu_add_opts(&qemu_fw_cfg_opts);
3057 module_call_init(MODULE_INIT_OPTS);
3058
3059 runstate_init();
3060 postcopy_infrastructure_init();
3061 monitor_init_globals();
3062
3063 if (qcrypto_init(&err) < 0) {
3064 error_reportf_err(err, "cannot initialize crypto: ");
3065 exit(1);
3066 }
3067
3068 QLIST_INIT (&vm_change_state_head);
3069 os_setup_early_signal_handling();
3070
3071 cpu_model = NULL;
3072 snapshot = 0;
3073
3074 nb_nics = 0;
3075
3076 bdrv_init_with_whitelist();
3077
3078 autostart = 1;
3079
3080 /* first pass of option parsing */
3081 optind = 1;
3082 while (optind < argc) {
3083 if (argv[optind][0] != '-') {
3084 /* disk image */
3085 optind++;
3086 } else {
3087 const QEMUOption *popt;
3088
3089 popt = lookup_opt(argc, argv, &optarg, &optind);
3090 switch (popt->index) {
3091 case QEMU_OPTION_nouserconfig:
3092 userconfig = false;
3093 break;
3094 }
3095 }
3096 }
3097
3098 if (userconfig) {
3099 if (qemu_read_default_config_file() < 0) {
3100 exit(1);
3101 }
3102 }
3103
3104 /* second pass of option parsing */
3105 optind = 1;
3106 for(;;) {
3107 if (optind >= argc)
3108 break;
3109 if (argv[optind][0] != '-') {
3110 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3111 } else {
3112 const QEMUOption *popt;
3113
3114 popt = lookup_opt(argc, argv, &optarg, &optind);
3115 if (!(popt->arch_mask & arch_type)) {
3116 error_report("Option not supported for this target");
3117 exit(1);
3118 }
3119 switch(popt->index) {
3120 case QEMU_OPTION_cpu:
3121 /* hw initialization will check this */
3122 cpu_model = optarg;
3123 break;
3124 case QEMU_OPTION_hda:
3125 case QEMU_OPTION_hdb:
3126 case QEMU_OPTION_hdc:
3127 case QEMU_OPTION_hdd:
3128 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3129 HD_OPTS);
3130 break;
3131 case QEMU_OPTION_blockdev:
3132 {
3133 Visitor *v;
3134 BlockdevOptions_queue *bdo;
3135
3136 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3137 if (!v) {
3138 error_report_err(err);
3139 exit(1);
3140 }
3141
3142 bdo = g_new(BlockdevOptions_queue, 1);
3143 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3144 &error_fatal);
3145 visit_free(v);
3146 loc_save(&bdo->loc);
3147 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3148 break;
3149 }
3150 case QEMU_OPTION_drive:
3151 if (drive_def(optarg) == NULL) {
3152 exit(1);
3153 }
3154 break;
3155 case QEMU_OPTION_set:
3156 if (qemu_set_option(optarg) != 0)
3157 exit(1);
3158 break;
3159 case QEMU_OPTION_global:
3160 if (qemu_global_option(optarg) != 0)
3161 exit(1);
3162 break;
3163 case QEMU_OPTION_mtdblock:
3164 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3165 break;
3166 case QEMU_OPTION_sd:
3167 drive_add(IF_SD, -1, optarg, SD_OPTS);
3168 break;
3169 case QEMU_OPTION_pflash:
3170 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3171 break;
3172 case QEMU_OPTION_snapshot:
3173 snapshot = 1;
3174 break;
3175 case QEMU_OPTION_numa:
3176 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3177 optarg, true);
3178 if (!opts) {
3179 exit(1);
3180 }
3181 break;
3182 case QEMU_OPTION_display:
3183 parse_display(optarg);
3184 break;
3185 case QEMU_OPTION_nographic:
3186 olist = qemu_find_opts("machine");
3187 qemu_opts_parse_noisily(olist, "graphics=off", false);
3188 nographic = true;
3189 dpy.type = DISPLAY_TYPE_NONE;
3190 break;
3191 case QEMU_OPTION_curses:
3192 #ifdef CONFIG_CURSES
3193 dpy.type = DISPLAY_TYPE_CURSES;
3194 #else
3195 error_report("curses support is disabled");
3196 exit(1);
3197 #endif
3198 break;
3199 case QEMU_OPTION_portrait:
3200 graphic_rotate = 90;
3201 break;
3202 case QEMU_OPTION_rotate:
3203 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3204 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3205 graphic_rotate != 180 && graphic_rotate != 270) {
3206 error_report("only 90, 180, 270 deg rotation is available");
3207 exit(1);
3208 }
3209 break;
3210 case QEMU_OPTION_kernel:
3211 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3212 &error_abort);
3213 break;
3214 case QEMU_OPTION_initrd:
3215 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3216 &error_abort);
3217 break;
3218 case QEMU_OPTION_append:
3219 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3220 &error_abort);
3221 break;
3222 case QEMU_OPTION_dtb:
3223 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3224 &error_abort);
3225 break;
3226 case QEMU_OPTION_cdrom:
3227 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3228 break;
3229 case QEMU_OPTION_boot:
3230 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3231 optarg, true);
3232 if (!opts) {
3233 exit(1);
3234 }
3235 break;
3236 case QEMU_OPTION_fda:
3237 case QEMU_OPTION_fdb:
3238 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3239 optarg, FD_OPTS);
3240 break;
3241 case QEMU_OPTION_no_fd_bootchk:
3242 fd_bootchk = 0;
3243 break;
3244 case QEMU_OPTION_netdev:
3245 default_net = 0;
3246 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3247 exit(1);
3248 }
3249 break;
3250 case QEMU_OPTION_nic:
3251 default_net = 0;
3252 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3253 exit(1);
3254 }
3255 break;
3256 case QEMU_OPTION_net:
3257 default_net = 0;
3258 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3259 exit(1);
3260 }
3261 break;
3262 #ifdef CONFIG_LIBISCSI
3263 case QEMU_OPTION_iscsi:
3264 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3265 optarg, false);
3266 if (!opts) {
3267 exit(1);
3268 }
3269 break;
3270 #endif
3271 case QEMU_OPTION_bt:
3272 warn_report("The bluetooth subsystem is deprecated and will "
3273 "be removed soon. If the bluetooth subsystem is "
3274 "still useful for you, please send a mail to "
3275 "qemu-devel@nongnu.org with your usecase.");
3276 add_device_config(DEV_BT, optarg);
3277 break;
3278 case QEMU_OPTION_audio_help:
3279 AUD_help ();
3280 exit (0);
3281 break;
3282 case QEMU_OPTION_soundhw:
3283 select_soundhw (optarg);
3284 break;
3285 case QEMU_OPTION_h:
3286 help(0);
3287 break;
3288 case QEMU_OPTION_version:
3289 version();
3290 exit(0);
3291 break;
3292 case QEMU_OPTION_m:
3293 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3294 optarg, true);
3295 if (!opts) {
3296 exit(EXIT_FAILURE);
3297 }
3298 break;
3299 #ifdef CONFIG_TPM
3300 case QEMU_OPTION_tpmdev:
3301 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3302 exit(1);
3303 }
3304 break;
3305 #endif
3306 case QEMU_OPTION_mempath:
3307 mem_path = optarg;
3308 break;
3309 case QEMU_OPTION_mem_prealloc:
3310 mem_prealloc = 1;
3311 break;
3312 case QEMU_OPTION_d:
3313 log_mask = optarg;
3314 break;
3315 case QEMU_OPTION_D:
3316 log_file = optarg;
3317 break;
3318 case QEMU_OPTION_DFILTER:
3319 qemu_set_dfilter_ranges(optarg, &error_fatal);
3320 break;
3321 case QEMU_OPTION_s:
3322 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3323 break;
3324 case QEMU_OPTION_gdb:
3325 add_device_config(DEV_GDB, optarg);
3326 break;
3327 case QEMU_OPTION_L:
3328 if (is_help_option(optarg)) {
3329 list_data_dirs = true;
3330 } else {
3331 qemu_add_data_dir(optarg);
3332 }
3333 break;
3334 case QEMU_OPTION_bios:
3335 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3336 &error_abort);
3337 break;
3338 case QEMU_OPTION_singlestep:
3339 singlestep = 1;
3340 break;
3341 case QEMU_OPTION_S:
3342 autostart = 0;
3343 break;
3344 case QEMU_OPTION_k:
3345 keyboard_layout = optarg;
3346 break;
3347 case QEMU_OPTION_vga:
3348 vga_model = optarg;
3349 default_vga = 0;
3350 break;
3351 case QEMU_OPTION_g:
3352 {
3353 const char *p;
3354 int w, h, depth;
3355 p = optarg;
3356 w = strtol(p, (char **)&p, 10);
3357 if (w <= 0) {
3358 graphic_error:
3359 error_report("invalid resolution or depth");
3360 exit(1);
3361 }
3362 if (*p != 'x')
3363 goto graphic_error;
3364 p++;
3365 h = strtol(p, (char **)&p, 10);
3366 if (h <= 0)
3367 goto graphic_error;
3368 if (*p == 'x') {
3369 p++;
3370 depth = strtol(p, (char **)&p, 10);
3371 if (depth != 8 && depth != 15 && depth != 16 &&
3372 depth != 24 && depth != 32)
3373 goto graphic_error;
3374 } else if (*p == '\0') {
3375 depth = graphic_depth;
3376 } else {
3377 goto graphic_error;
3378 }
3379
3380 graphic_width = w;
3381 graphic_height = h;
3382 graphic_depth = depth;
3383 }
3384 break;
3385 case QEMU_OPTION_echr:
3386 {
3387 char *r;
3388 term_escape_char = strtol(optarg, &r, 0);
3389 if (r == optarg)
3390 printf("Bad argument to echr\n");
3391 break;
3392 }
3393 case QEMU_OPTION_monitor:
3394 default_monitor = 0;
3395 if (strncmp(optarg, "none", 4)) {
3396 monitor_parse(optarg, "readline", false);
3397 }
3398 break;
3399 case QEMU_OPTION_qmp:
3400 monitor_parse(optarg, "control", false);
3401 default_monitor = 0;
3402 break;
3403 case QEMU_OPTION_qmp_pretty:
3404 monitor_parse(optarg, "control", true);
3405 default_monitor = 0;
3406 break;
3407 case QEMU_OPTION_mon:
3408 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3409 true);
3410 if (!opts) {
3411 exit(1);
3412 }
3413 default_monitor = 0;
3414 break;
3415 case QEMU_OPTION_chardev:
3416 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3417 optarg, true);
3418 if (!opts) {
3419 exit(1);
3420 }
3421 break;
3422 case QEMU_OPTION_fsdev:
3423 olist = qemu_find_opts("fsdev");
3424 if (!olist) {
3425 error_report("fsdev support is disabled");
3426 exit(1);
3427 }
3428 opts = qemu_opts_parse_noisily(olist, optarg, true);
3429 if (!opts) {
3430 exit(1);
3431 }
3432 break;
3433 case QEMU_OPTION_virtfs: {
3434 QemuOpts *fsdev;
3435 QemuOpts *device;
3436 const char *writeout, *sock_fd, *socket, *path, *security_model;
3437
3438 olist = qemu_find_opts("virtfs");
3439 if (!olist) {
3440 error_report("virtfs support is disabled");
3441 exit(1);
3442 }
3443 opts = qemu_opts_parse_noisily(olist, optarg, true);
3444 if (!opts) {
3445 exit(1);
3446 }
3447
3448 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3449 qemu_opt_get(opts, "mount_tag") == NULL) {
3450 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3451 exit(1);
3452 }
3453 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3454 qemu_opts_id(opts) ?:
3455 qemu_opt_get(opts, "mount_tag"),
3456 1, NULL);
3457 if (!fsdev) {
3458 error_report("duplicate or invalid fsdev id: %s",
3459 qemu_opt_get(opts, "mount_tag"));
3460 exit(1);
3461 }
3462
3463 writeout = qemu_opt_get(opts, "writeout");
3464 if (writeout) {
3465 #ifdef CONFIG_SYNC_FILE_RANGE
3466 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3467 #else
3468 error_report("writeout=immediate not supported "
3469 "on this platform");
3470 exit(1);
3471 #endif
3472 }
3473 qemu_opt_set(fsdev, "fsdriver",
3474 qemu_opt_get(opts, "fsdriver"), &error_abort);
3475 path = qemu_opt_get(opts, "path");
3476 if (path) {
3477 qemu_opt_set(fsdev, "path", path, &error_abort);
3478 }
3479 security_model = qemu_opt_get(opts, "security_model");
3480 if (security_model) {
3481 qemu_opt_set(fsdev, "security_model", security_model,
3482 &error_abort);
3483 }
3484 socket = qemu_opt_get(opts, "socket");
3485 if (socket) {
3486 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3487 }
3488 sock_fd = qemu_opt_get(opts, "sock_fd");
3489 if (sock_fd) {
3490 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3491 }
3492
3493 qemu_opt_set_bool(fsdev, "readonly",
3494 qemu_opt_get_bool(opts, "readonly", 0),
3495 &error_abort);
3496 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3497 &error_abort);
3498 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3499 qemu_opt_set(device, "fsdev",
3500 qemu_opts_id(fsdev), &error_abort);
3501 qemu_opt_set(device, "mount_tag",
3502 qemu_opt_get(opts, "mount_tag"), &error_abort);
3503 break;
3504 }
3505 case QEMU_OPTION_virtfs_synth: {
3506 QemuOpts *fsdev;
3507 QemuOpts *device;
3508
3509 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3510 1, NULL);
3511 if (!fsdev) {
3512 error_report("duplicate option: %s", "virtfs_synth");
3513 exit(1);
3514 }
3515 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3516
3517 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3518 &error_abort);
3519 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3520 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3521 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3522 break;
3523 }
3524 case QEMU_OPTION_serial:
3525 add_device_config(DEV_SERIAL, optarg);
3526 default_serial = 0;
3527 if (strncmp(optarg, "mon:", 4) == 0) {
3528 default_monitor = 0;
3529 }
3530 break;
3531 case QEMU_OPTION_watchdog:
3532 if (watchdog) {
3533 error_report("only one watchdog option may be given");
3534 return 1;
3535 }
3536 watchdog = optarg;
3537 break;
3538 case QEMU_OPTION_watchdog_action:
3539 if (select_watchdog_action(optarg) == -1) {
3540 error_report("unknown -watchdog-action parameter");
3541 exit(1);
3542 }
3543 break;
3544 case QEMU_OPTION_virtiocon:
3545 warn_report("This option is deprecated, "
3546 "use '-device virtconsole' instead");
3547 add_device_config(DEV_VIRTCON, optarg);
3548 default_virtcon = 0;
3549 if (strncmp(optarg, "mon:", 4) == 0) {
3550 default_monitor = 0;
3551 }
3552 break;
3553 case QEMU_OPTION_parallel:
3554 add_device_config(DEV_PARALLEL, optarg);
3555 default_parallel = 0;
3556 if (strncmp(optarg, "mon:", 4) == 0) {
3557 default_monitor = 0;
3558 }
3559 break;
3560 case QEMU_OPTION_debugcon:
3561 add_device_config(DEV_DEBUGCON, optarg);
3562 break;
3563 case QEMU_OPTION_loadvm:
3564 loadvm = optarg;
3565 break;
3566 case QEMU_OPTION_full_screen:
3567 dpy.has_full_screen = true;
3568 dpy.full_screen = true;
3569 break;
3570 case QEMU_OPTION_no_frame:
3571 g_printerr("The -no-frame switch is deprecated, and will be\n"
3572 "removed in a future release.\n");
3573 no_frame = 1;
3574 break;
3575 case QEMU_OPTION_alt_grab:
3576 alt_grab = 1;
3577 break;
3578 case QEMU_OPTION_ctrl_grab:
3579 ctrl_grab = 1;
3580 break;
3581 case QEMU_OPTION_no_quit:
3582 dpy.has_window_close = true;
3583 dpy.window_close = false;
3584 break;
3585 case QEMU_OPTION_sdl:
3586 #ifdef CONFIG_SDL
3587 dpy.type = DISPLAY_TYPE_SDL;
3588 break;
3589 #else
3590 error_report("SDL support is disabled");
3591 exit(1);
3592 #endif
3593 case QEMU_OPTION_pidfile:
3594 pid_file = optarg;
3595 break;
3596 case QEMU_OPTION_win2k_hack:
3597 win2k_install_hack = 1;
3598 break;
3599 case QEMU_OPTION_acpitable:
3600 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3601 optarg, true);
3602 if (!opts) {
3603 exit(1);
3604 }
3605 acpi_table_add(opts, &error_fatal);
3606 break;
3607 case QEMU_OPTION_smbios:
3608 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3609 optarg, false);
3610 if (!opts) {
3611 exit(1);
3612 }
3613 smbios_entry_add(opts, &error_fatal);
3614 break;
3615 case QEMU_OPTION_fwcfg:
3616 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3617 optarg, true);
3618 if (opts == NULL) {
3619 exit(1);
3620 }
3621 break;
3622 case QEMU_OPTION_preconfig:
3623 preconfig_exit_requested = false;
3624 break;
3625 case QEMU_OPTION_enable_kvm:
3626 olist = qemu_find_opts("machine");
3627 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3628 break;
3629 case QEMU_OPTION_enable_hax:
3630 warn_report("Option is deprecated, use '-accel hax' instead");
3631 olist = qemu_find_opts("machine");
3632 qemu_opts_parse_noisily(olist, "accel=hax", false);
3633 break;
3634 case QEMU_OPTION_M:
3635 case QEMU_OPTION_machine:
3636 olist = qemu_find_opts("machine");
3637 opts = qemu_opts_parse_noisily(olist, optarg, true);
3638 if (!opts) {
3639 exit(1);
3640 }
3641 break;
3642 case QEMU_OPTION_no_kvm:
3643 olist = qemu_find_opts("machine");
3644 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3645 break;
3646 case QEMU_OPTION_accel:
3647 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3648 optarg, true);
3649 optarg = qemu_opt_get(accel_opts, "accel");
3650 if (!optarg || is_help_option(optarg)) {
3651 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3652 exit(0);
3653 }
3654 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3655 false, &error_abort);
3656 qemu_opt_set(opts, "accel", optarg, &error_abort);
3657 break;
3658 case QEMU_OPTION_usb:
3659 olist = qemu_find_opts("machine");
3660 qemu_opts_parse_noisily(olist, "usb=on", false);
3661 break;
3662 case QEMU_OPTION_usbdevice:
3663 error_report("'-usbdevice' is deprecated, please use "
3664 "'-device usb-...' instead");
3665 olist = qemu_find_opts("machine");
3666 qemu_opts_parse_noisily(olist, "usb=on", false);
3667 add_device_config(DEV_USB, optarg);
3668 break;
3669 case QEMU_OPTION_device:
3670 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3671 optarg, true)) {
3672 exit(1);
3673 }
3674 break;
3675 case QEMU_OPTION_smp:
3676 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3677 optarg, true)) {
3678 exit(1);
3679 }
3680 break;
3681 case QEMU_OPTION_vnc:
3682 vnc_parse(optarg, &error_fatal);
3683 break;
3684 case QEMU_OPTION_no_acpi:
3685 acpi_enabled = 0;
3686 break;
3687 case QEMU_OPTION_no_hpet:
3688 no_hpet = 1;
3689 break;
3690 case QEMU_OPTION_no_reboot:
3691 no_reboot = 1;
3692 break;
3693 case QEMU_OPTION_no_shutdown:
3694 no_shutdown = 1;
3695 break;
3696 case QEMU_OPTION_show_cursor:
3697 cursor_hide = 0;
3698 break;
3699 case QEMU_OPTION_uuid:
3700 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3701 error_report("failed to parse UUID string: wrong format");
3702 exit(1);
3703 }
3704 qemu_uuid_set = true;
3705 break;
3706 case QEMU_OPTION_option_rom:
3707 if (nb_option_roms >= MAX_OPTION_ROMS) {
3708 error_report("too many option ROMs");
3709 exit(1);
3710 }
3711 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3712 optarg, true);
3713 if (!opts) {
3714 exit(1);
3715 }
3716 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3717 option_rom[nb_option_roms].bootindex =
3718 qemu_opt_get_number(opts, "bootindex", -1);
3719 if (!option_rom[nb_option_roms].name) {
3720 error_report("Option ROM file is not specified");
3721 exit(1);
3722 }
3723 nb_option_roms++;
3724 break;
3725 case QEMU_OPTION_semihosting:
3726 semihosting.enabled = true;
3727 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3728 break;
3729 case QEMU_OPTION_semihosting_config:
3730 semihosting.enabled = true;
3731 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3732 optarg, false);
3733 if (opts != NULL) {
3734 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3735 true);
3736 const char *target = qemu_opt_get(opts, "target");
3737 if (target != NULL) {
3738 if (strcmp("native", target) == 0) {
3739 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3740 } else if (strcmp("gdb", target) == 0) {
3741 semihosting.target = SEMIHOSTING_TARGET_GDB;
3742 } else if (strcmp("auto", target) == 0) {
3743 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3744 } else {
3745 error_report("unsupported semihosting-config %s",
3746 optarg);
3747 exit(1);
3748 }
3749 } else {
3750 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3751 }
3752 /* Set semihosting argument count and vector */
3753 qemu_opt_foreach(opts, add_semihosting_arg,
3754 &semihosting, NULL);
3755 } else {
3756 error_report("unsupported semihosting-config %s", optarg);
3757 exit(1);
3758 }
3759 break;
3760 case QEMU_OPTION_name:
3761 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3762 optarg, true);
3763 if (!opts) {
3764 exit(1);
3765 }
3766 break;
3767 case QEMU_OPTION_prom_env:
3768 if (nb_prom_envs >= MAX_PROM_ENVS) {
3769 error_report("too many prom variables");
3770 exit(1);
3771 }
3772 prom_envs[nb_prom_envs] = optarg;
3773 nb_prom_envs++;
3774 break;
3775 case QEMU_OPTION_old_param:
3776 old_param = 1;
3777 break;
3778 case QEMU_OPTION_clock:
3779 /* Clock options no longer exist. Keep this option for
3780 * backward compatibility.
3781 */
3782 warn_report("This option is ignored and will be removed soon");
3783 break;
3784 case QEMU_OPTION_rtc:
3785 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3786 false);
3787 if (!opts) {
3788 exit(1);
3789 }
3790 break;
3791 case QEMU_OPTION_tb_size:
3792 #ifndef CONFIG_TCG
3793 error_report("TCG is disabled");
3794 exit(1);
3795 #endif
3796 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3797 error_report("Invalid argument to -tb-size");
3798 exit(1);
3799 }
3800 break;
3801 case QEMU_OPTION_icount:
3802 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3803 optarg, true);
3804 if (!icount_opts) {
3805 exit(1);
3806 }
3807 break;
3808 case QEMU_OPTION_incoming:
3809 if (!incoming) {
3810 runstate_set(RUN_STATE_INMIGRATE);
3811 }
3812 incoming = optarg;
3813 break;
3814 case QEMU_OPTION_only_migratable:
3815 /*
3816 * TODO: we can remove this option one day, and we
3817 * should all use:
3818 *
3819 * "-global migration.only-migratable=true"
3820 */
3821 qemu_global_option("migration.only-migratable=true");
3822 break;
3823 case QEMU_OPTION_nodefaults:
3824 has_defaults = 0;
3825 break;
3826 case QEMU_OPTION_xen_domid:
3827 if (!(xen_available())) {
3828 error_report("Option not supported for this target");
3829 exit(1);
3830 }
3831 xen_domid = atoi(optarg);
3832 break;
3833 case QEMU_OPTION_xen_create:
3834 if (!(xen_available())) {
3835 error_report("Option not supported for this target");
3836 exit(1);
3837 }
3838 xen_mode = XEN_CREATE;
3839 break;
3840 case QEMU_OPTION_xen_attach:
3841 if (!(xen_available())) {
3842 error_report("Option not supported for this target");
3843 exit(1);
3844 }
3845 xen_mode = XEN_ATTACH;
3846 break;
3847 case QEMU_OPTION_xen_domid_restrict:
3848 if (!(xen_available())) {
3849 error_report("Option not supported for this target");
3850 exit(1);
3851 }
3852 xen_domid_restrict = true;
3853 break;
3854 case QEMU_OPTION_trace:
3855 g_free(trace_file);
3856 trace_file = trace_opt_parse(optarg);
3857 break;
3858 case QEMU_OPTION_readconfig:
3859 {
3860 int ret = qemu_read_config_file(optarg);
3861 if (ret < 0) {
3862 error_report("read config %s: %s", optarg,
3863 strerror(-ret));
3864 exit(1);
3865 }
3866 break;
3867 }
3868 case QEMU_OPTION_spice:
3869 olist = qemu_find_opts("spice");
3870 if (!olist) {
3871 error_report("spice support is disabled");
3872 exit(1);
3873 }
3874 opts = qemu_opts_parse_noisily(olist, optarg, false);
3875 if (!opts) {
3876 exit(1);
3877 }
3878 display_remote++;
3879 break;
3880 case QEMU_OPTION_writeconfig:
3881 {
3882 FILE *fp;
3883 if (strcmp(optarg, "-") == 0) {
3884 fp = stdout;
3885 } else {
3886 fp = fopen(optarg, "w");
3887 if (fp == NULL) {
3888 error_report("open %s: %s", optarg,
3889 strerror(errno));
3890 exit(1);
3891 }
3892 }
3893 qemu_config_write(fp);
3894 if (fp != stdout) {
3895 fclose(fp);
3896 }
3897 break;
3898 }
3899 case QEMU_OPTION_qtest:
3900 qtest_chrdev = optarg;
3901 break;
3902 case QEMU_OPTION_qtest_log:
3903 qtest_log = optarg;
3904 break;
3905 case QEMU_OPTION_sandbox:
3906 #ifdef CONFIG_SECCOMP
3907 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3908 optarg, true);
3909 if (!opts) {
3910 exit(1);
3911 }
3912 #else
3913 error_report("-sandbox support is not enabled "
3914 "in this QEMU binary");
3915 exit(1);
3916 #endif
3917 break;
3918 case QEMU_OPTION_add_fd:
3919 #ifndef _WIN32
3920 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3921 optarg, false);
3922 if (!opts) {
3923 exit(1);
3924 }
3925 #else
3926 error_report("File descriptor passing is disabled on this "
3927 "platform");
3928 exit(1);
3929 #endif
3930 break;
3931 case QEMU_OPTION_object:
3932 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3933 optarg, true);
3934 if (!opts) {
3935 exit(1);
3936 }
3937 break;
3938 case QEMU_OPTION_realtime:
3939 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3940 optarg, false);
3941 if (!opts) {
3942 exit(1);
3943 }
3944 /* Don't override the -overcommit option if set */
3945 enable_mlock = enable_mlock ||
3946 qemu_opt_get_bool(opts, "mlock", true);
3947 break;
3948 case QEMU_OPTION_overcommit:
3949 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3950 optarg, false);
3951 if (!opts) {
3952 exit(1);
3953 }
3954 /* Don't override the -realtime option if set */
3955 enable_mlock = enable_mlock ||
3956 qemu_opt_get_bool(opts, "mem-lock", false);
3957 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3958 break;
3959 case QEMU_OPTION_msg:
3960 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3961 false);
3962 if (!opts) {
3963 exit(1);
3964 }
3965 configure_msg(opts);
3966 break;
3967 case QEMU_OPTION_dump_vmstate:
3968 if (vmstate_dump_file) {
3969 error_report("only one '-dump-vmstate' "
3970 "option may be given");
3971 exit(1);
3972 }
3973 vmstate_dump_file = fopen(optarg, "w");
3974 if (vmstate_dump_file == NULL) {
3975 error_report("open %s: %s", optarg, strerror(errno));
3976 exit(1);
3977 }
3978 break;
3979 case QEMU_OPTION_enable_sync_profile:
3980 qsp_enable();
3981 break;
3982 case QEMU_OPTION_nouserconfig:
3983 /* Nothing to be parsed here. Especially, do not error out below. */
3984 break;
3985 default:
3986 if (os_parse_cmd_args(popt->index, optarg)) {
3987 error_report("Option not supported in this build");
3988 exit(1);
3989 }
3990 }
3991 }
3992 }
3993 /*
3994 * Clear error location left behind by the loop.
3995 * Best done right after the loop. Do not insert code here!
3996 */
3997 loc_set_none();
3998
3999 replay_configure(icount_opts);
4000
4001 if (incoming && !preconfig_exit_requested) {
4002 error_report("'preconfig' and 'incoming' options are "
4003 "mutually exclusive");
4004 exit(EXIT_FAILURE);
4005 }
4006
4007 configure_rtc(qemu_find_opts_singleton("rtc"));
4008
4009 machine_class = select_machine();
4010
4011 set_memory_options(&ram_slots, &maxram_size, machine_class);
4012
4013 os_daemonize();
4014 rcu_disable_atfork();
4015
4016 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
4017 error_reportf_err(err, "cannot create PID file: ");
4018 exit(1);
4019 }
4020
4021 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
4022 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4023
4024 if (qemu_init_main_loop(&main_loop_err)) {
4025 error_report_err(main_loop_err);
4026 exit(1);
4027 }
4028
4029 #ifdef CONFIG_SECCOMP
4030 olist = qemu_find_opts_err("sandbox", NULL);
4031 if (olist) {
4032 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4033 }
4034 #endif
4035
4036 qemu_opts_foreach(qemu_find_opts("name"),
4037 parse_name, NULL, &error_fatal);
4038
4039 #ifndef _WIN32
4040 qemu_opts_foreach(qemu_find_opts("add-fd"),
4041 parse_add_fd, NULL, &error_fatal);
4042
4043 qemu_opts_foreach(qemu_find_opts("add-fd"),
4044 cleanup_add_fd, NULL, &error_fatal);
4045 #endif
4046
4047 current_machine = MACHINE(object_new(object_class_get_name(
4048 OBJECT_CLASS(machine_class))));
4049 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4050 exit(0);
4051 }
4052 object_property_add_child(object_get_root(), "machine",
4053 OBJECT(current_machine), &error_abort);
4054
4055 if (machine_class->minimum_page_bits) {
4056 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4057 /* This would be a board error: specifying a minimum smaller than
4058 * a target's compile-time fixed setting.
4059 */
4060 g_assert_not_reached();
4061 }
4062 }
4063
4064 cpu_exec_init_all();
4065
4066 if (machine_class->hw_version) {
4067 qemu_set_hw_version(machine_class->hw_version);
4068 }
4069
4070 if (cpu_model && is_help_option(cpu_model)) {
4071 list_cpus(stdout, &fprintf, cpu_model);
4072 exit(0);
4073 }
4074
4075 if (!trace_init_backends()) {
4076 exit(1);
4077 }
4078 trace_init_file(trace_file);
4079
4080 /* Open the logfile at this point and set the log mask if necessary.
4081 */
4082 if (log_file) {
4083 qemu_set_log_filename(log_file, &error_fatal);
4084 }
4085
4086 if (log_mask) {
4087 int mask;
4088 mask = qemu_str_to_log_mask(log_mask);
4089 if (!mask) {
4090 qemu_print_log_usage(stdout);
4091 exit(1);
4092 }
4093 qemu_set_log(mask);
4094 } else {
4095 qemu_set_log(0);
4096 }
4097
4098 /* add configured firmware directories */
4099 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4100 for (i = 0; dirs[i] != NULL; i++) {
4101 qemu_add_data_dir(dirs[i]);
4102 }
4103 g_strfreev(dirs);
4104
4105 /* try to find datadir relative to the executable path */
4106 dir = os_find_datadir();
4107 qemu_add_data_dir(dir);
4108 g_free(dir);
4109
4110 /* add the datadir specified when building */
4111 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4112
4113 /* -L help lists the data directories and exits. */
4114 if (list_data_dirs) {
4115 for (i = 0; i < data_dir_idx; i++) {
4116 printf("%s\n", data_dir[i]);
4117 }
4118 exit(0);
4119 }
4120
4121 /* machine_class: default to UP */
4122 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4123 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4124 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4125
4126 /* default to machine_class->default_cpus */
4127 smp_cpus = machine_class->default_cpus;
4128 max_cpus = machine_class->default_cpus;
4129
4130 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4131
4132 /* sanity-check smp_cpus and max_cpus against machine_class */
4133 if (smp_cpus < machine_class->min_cpus) {
4134 error_report("Invalid SMP CPUs %d. The min CPUs "
4135 "supported by machine '%s' is %d", smp_cpus,
4136 machine_class->name, machine_class->min_cpus);
4137 exit(1);
4138 }
4139 if (max_cpus > machine_class->max_cpus) {
4140 error_report("Invalid SMP CPUs %d. The max CPUs "
4141 "supported by machine '%s' is %d", max_cpus,
4142 machine_class->name, machine_class->max_cpus);
4143 exit(1);
4144 }
4145
4146 /*
4147 * Get the default machine options from the machine if it is not already
4148 * specified either by the configuration file or by the command line.
4149 */
4150 if (machine_class->default_machine_opts) {
4151 qemu_opts_set_defaults(qemu_find_opts("machine"),
4152 machine_class->default_machine_opts, 0);
4153 }
4154
4155 qemu_opts_foreach(qemu_find_opts("device"),
4156 default_driver_check, NULL, NULL);
4157 qemu_opts_foreach(qemu_find_opts("global"),
4158 default_driver_check, NULL, NULL);
4159
4160 if (!vga_model && !default_vga) {
4161 vga_interface_type = VGA_DEVICE;
4162 }
4163 if (!has_defaults || machine_class->no_serial) {
4164 default_serial = 0;
4165 }
4166 if (!has_defaults || machine_class->no_parallel) {
4167 default_parallel = 0;
4168 }
4169 if (!has_defaults || !machine_class->use_virtcon) {
4170 default_virtcon = 0;
4171 }
4172 if (!has_defaults || machine_class->no_floppy) {
4173 default_floppy = 0;
4174 }
4175 if (!has_defaults || machine_class->no_cdrom) {
4176 default_cdrom = 0;
4177 }
4178 if (!has_defaults || machine_class->no_sdcard) {
4179 default_sdcard = 0;
4180 }
4181 if (!has_defaults) {
4182 default_monitor = 0;
4183 default_net = 0;
4184 default_vga = 0;
4185 }
4186
4187 if (is_daemonized()) {
4188 if (!preconfig_exit_requested) {
4189 error_report("'preconfig' and 'daemonize' options are "
4190 "mutually exclusive");
4191 exit(EXIT_FAILURE);
4192 }
4193
4194 /* According to documentation and historically, -nographic redirects
4195 * serial port, parallel port and monitor to stdio, which does not work
4196 * with -daemonize. We can redirect these to null instead, but since
4197 * -nographic is legacy, let's just error out.
4198 * We disallow -nographic only if all other ports are not redirected
4199 * explicitly, to not break existing legacy setups which uses
4200 * -nographic _and_ redirects all ports explicitly - this is valid
4201 * usage, -nographic is just a no-op in this case.
4202 */
4203 if (nographic
4204 && (default_parallel || default_serial
4205 || default_monitor || default_virtcon)) {
4206 error_report("-nographic cannot be used with -daemonize");
4207 exit(1);
4208 }
4209 #ifdef CONFIG_CURSES
4210 if (dpy.type == DISPLAY_TYPE_CURSES) {
4211 error_report("curses display cannot be used with -daemonize");
4212 exit(1);
4213 }
4214 #endif
4215 }
4216
4217 if (nographic) {
4218 if (default_parallel)
4219 add_device_config(DEV_PARALLEL, "null");
4220 if (default_serial && default_monitor) {
4221 add_device_config(DEV_SERIAL, "mon:stdio");
4222 } else if (default_virtcon && default_monitor) {
4223 add_device_config(DEV_VIRTCON, "mon:stdio");
4224 } else {
4225 if (default_serial)
4226 add_device_config(DEV_SERIAL, "stdio");
4227 if (default_virtcon)
4228 add_device_config(DEV_VIRTCON, "stdio");
4229 if (default_monitor)
4230 monitor_parse("stdio", "readline", false);
4231 }
4232 } else {
4233 if (default_serial)
4234 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4235 if (default_parallel)
4236 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4237 if (default_monitor)
4238 monitor_parse("vc:80Cx24C", "readline", false);
4239 if (default_virtcon)
4240 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4241 }
4242
4243 #if defined(CONFIG_VNC)
4244 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4245 display_remote++;
4246 }
4247 #endif
4248 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4249 if (!qemu_display_find_default(&dpy)) {
4250 dpy.type = DISPLAY_TYPE_NONE;
4251 #if defined(CONFIG_VNC)
4252 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4253 #endif
4254 }
4255 }
4256 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4257 dpy.type = DISPLAY_TYPE_NONE;
4258 }
4259
4260 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4261 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4262 "for SDL, ignoring option");
4263 }
4264 if (dpy.has_window_close &&
4265 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4266 error_report("-no-quit is only valid for GTK and SDL, "
4267 "ignoring option");
4268 }
4269
4270 qemu_display_early_init(&dpy);
4271 qemu_console_early_init();
4272
4273 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4274 #if defined(CONFIG_OPENGL)
4275 error_report("OpenGL is not supported by the display");
4276 #else
4277 error_report("OpenGL support is disabled");
4278 #endif
4279 exit(1);
4280 }
4281
4282 page_size_init();
4283 socket_init();
4284
4285 qemu_opts_foreach(qemu_find_opts("object"),
4286 user_creatable_add_opts_foreach,
4287 object_create_initial, &error_fatal);
4288
4289 qemu_opts_foreach(qemu_find_opts("chardev"),
4290 chardev_init_func, NULL, &error_fatal);
4291
4292 #ifdef CONFIG_VIRTFS
4293 qemu_opts_foreach(qemu_find_opts("fsdev"),
4294 fsdev_init_func, NULL, &error_fatal);
4295 #endif
4296
4297 if (qemu_opts_foreach(qemu_find_opts("device"),
4298 device_help_func, NULL, NULL)) {
4299 exit(0);
4300 }
4301
4302 machine_opts = qemu_get_machine_opts();
4303 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4304 &error_fatal);
4305
4306 configure_accelerator(current_machine);
4307
4308 if (!qtest_enabled() && machine_class->deprecation_reason) {
4309 error_report("Machine type '%s' is deprecated: %s",
4310 machine_class->name, machine_class->deprecation_reason);
4311 }
4312
4313 /*
4314 * Register all the global properties, including accel properties,
4315 * machine properties, and user-specified ones.
4316 */
4317 register_global_properties(current_machine);
4318
4319 /*
4320 * Migration object can only be created after global properties
4321 * are applied correctly.
4322 */
4323 migration_object_init();
4324
4325 if (qtest_chrdev) {
4326 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4327 }
4328
4329 machine_opts = qemu_get_machine_opts();
4330 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4331 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4332 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4333 bios_name = qemu_opt_get(machine_opts, "firmware");
4334
4335 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4336 if (opts) {
4337 boot_order = qemu_opt_get(opts, "order");
4338 if (boot_order) {
4339 validate_bootdevices(boot_order, &error_fatal);
4340 }
4341
4342 boot_once = qemu_opt_get(opts, "once");
4343 if (boot_once) {
4344 validate_bootdevices(boot_once, &error_fatal);
4345 }
4346
4347 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4348 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4349 }
4350
4351 if (!boot_order) {
4352 boot_order = machine_class->default_boot_order;
4353 }
4354
4355 if (!kernel_cmdline) {
4356 kernel_cmdline = "";
4357 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4358 }
4359
4360 linux_boot = (kernel_filename != NULL);
4361
4362 if (!linux_boot && *kernel_cmdline != '\0') {
4363 error_report("-append only allowed with -kernel option");
4364 exit(1);
4365 }
4366
4367 if (!linux_boot && initrd_filename != NULL) {
4368 error_report("-initrd only allowed with -kernel option");
4369 exit(1);
4370 }
4371
4372 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4373 /* fall back to the -kernel/-append */
4374 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4375 }
4376
4377 os_set_line_buffering();
4378
4379 /* spice needs the timers to be initialized by this point */
4380 qemu_spice_init();
4381
4382 cpu_ticks_init();
4383 if (icount_opts) {
4384 if (!tcg_enabled()) {
4385 error_report("-icount is not allowed with hardware virtualization");
4386 exit(1);
4387 }
4388 configure_icount(icount_opts, &error_abort);
4389 qemu_opts_del(icount_opts);
4390 }
4391
4392 if (tcg_enabled()) {
4393 qemu_tcg_configure(accel_opts, &error_fatal);
4394 }
4395
4396 if (default_net) {
4397 QemuOptsList *net = qemu_find_opts("net");
4398 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4399 #ifdef CONFIG_SLIRP
4400 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4401 #endif
4402 }
4403
4404 if (net_init_clients(&err) < 0) {
4405 error_report_err(err);
4406 exit(1);
4407 }
4408
4409 qemu_opts_foreach(qemu_find_opts("object"),
4410 user_creatable_add_opts_foreach,
4411 object_create_delayed, &error_fatal);
4412
4413 tpm_init();
4414
4415 /* init the bluetooth world */
4416 if (foreach_device_config(DEV_BT, bt_parse))
4417 exit(1);
4418
4419 if (!xen_enabled()) {
4420 /* On 32-bit hosts, QEMU is limited by virtual address space */
4421 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4422 error_report("at most 2047 MB RAM can be simulated");
4423 exit(1);
4424 }
4425 }
4426
4427 blk_mig_init();
4428 ram_mig_init();
4429 dirty_bitmap_mig_init();
4430
4431 /* If the currently selected machine wishes to override the units-per-bus
4432 * property of its default HBA interface type, do so now. */
4433 if (machine_class->units_per_default_bus) {
4434 override_max_devs(machine_class->block_default_type,
4435 machine_class->units_per_default_bus);
4436 }
4437
4438 /* open the virtual block devices */
4439 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4440 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4441
4442 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4443 loc_push_restore(&bdo->loc);
4444 qmp_blockdev_add(bdo->bdo, &error_fatal);
4445 loc_pop(&bdo->loc);
4446 qapi_free_BlockdevOptions(bdo->bdo);
4447 g_free(bdo);
4448 }
4449 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4450 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4451 NULL, NULL);
4452 }
4453 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4454 &machine_class->block_default_type, &error_fatal)) {
4455 /* We printed help */
4456 exit(0);
4457 }
4458
4459 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4460 CDROM_OPTS);
4461 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4462 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4463
4464 qemu_opts_foreach(qemu_find_opts("mon"),
4465 mon_init_func, NULL, &error_fatal);
4466
4467 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4468 exit(1);
4469 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4470 exit(1);
4471 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4472 exit(1);
4473 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4474 exit(1);
4475
4476 /* If no default VGA is requested, the default is "none". */
4477 if (default_vga) {
4478 if (machine_class->default_display) {
4479 vga_model = machine_class->default_display;
4480 } else if (vga_interface_available(VGA_CIRRUS)) {
4481 vga_model = "cirrus";
4482 } else if (vga_interface_available(VGA_STD)) {
4483 vga_model = "std";
4484 }
4485 }
4486 if (vga_model) {
4487 select_vgahw(vga_model);
4488 }
4489
4490 if (watchdog) {
4491 i = select_watchdog(watchdog);
4492 if (i > 0)
4493 exit (i == 1 ? 1 : 0);
4494 }
4495
4496 /* This checkpoint is required by replay to separate prior clock
4497 reading from the other reads, because timer polling functions query
4498 clock values from the log. */
4499 replay_checkpoint(CHECKPOINT_INIT);
4500 qdev_machine_init();
4501
4502 current_machine->ram_size = ram_size;
4503 current_machine->maxram_size = maxram_size;
4504 current_machine->ram_slots = ram_slots;
4505 current_machine->boot_order = boot_order;
4506
4507 /* parse features once if machine provides default cpu_type */
4508 current_machine->cpu_type = machine_class->default_cpu_type;
4509 if (cpu_model) {
4510 current_machine->cpu_type = parse_cpu_model(cpu_model);
4511 }
4512 parse_numa_opts(current_machine);
4513
4514 /* do monitor/qmp handling at preconfig state if requested */
4515 main_loop();
4516
4517 /* from here on runstate is RUN_STATE_PRELAUNCH */
4518 machine_run_board_init(current_machine);
4519
4520 realtime_init();
4521
4522 soundhw_init();
4523
4524 if (hax_enabled()) {
4525 hax_sync_vcpus();
4526 }
4527
4528 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4529 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4530
4531 /* init USB devices */
4532 if (machine_usb(current_machine)) {
4533 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4534 exit(1);
4535 }
4536
4537 /* Check if IGD GFX passthrough. */
4538 igd_gfx_passthru();
4539
4540 /* init generic devices */
4541 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4542 qemu_opts_foreach(qemu_find_opts("device"),
4543 device_init_func, NULL, &error_fatal);
4544
4545 cpu_synchronize_all_post_init();
4546
4547 rom_reset_order_override();
4548
4549 /* Did we create any drives that we failed to create a device for? */
4550 drive_check_orphaned();
4551
4552 /* Don't warn about the default network setup that you get if
4553 * no command line -net or -netdev options are specified. There
4554 * are two cases that we would otherwise complain about:
4555 * (1) board doesn't support a NIC but the implicit "-net nic"
4556 * requested one
4557 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4558 * sets up a nic that isn't connected to anything.
4559 */
4560 if (!default_net && (!qtest_enabled() || has_defaults)) {
4561 net_check_clients();
4562 }
4563
4564 if (boot_once) {
4565 qemu_boot_set(boot_once, &error_fatal);
4566 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4567 }
4568
4569 /* init local displays */
4570 ds = init_displaystate();
4571 qemu_display_init(ds, &dpy);
4572
4573 /* must be after terminal init, SDL library changes signal handlers */
4574 os_setup_signal_handling();
4575
4576 /* init remote displays */
4577 #ifdef CONFIG_VNC
4578 qemu_opts_foreach(qemu_find_opts("vnc"),
4579 vnc_init_func, NULL, &error_fatal);
4580 #endif
4581
4582 if (using_spice) {
4583 qemu_spice_display_init();
4584 }
4585
4586 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4587 exit(1);
4588 }
4589
4590 qdev_machine_creation_done();
4591
4592 /* TODO: once all bus devices are qdevified, this should be done
4593 * when bus is created by qdev.c */
4594 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4595 qemu_run_machine_init_done_notifiers();
4596
4597 if (rom_check_and_register_reset() != 0) {
4598 error_report("rom check and register reset failed");
4599 exit(1);
4600 }
4601
4602 replay_start();
4603
4604 /* This checkpoint is required by replay to separate prior clock
4605 reading from the other reads, because timer polling functions query
4606 clock values from the log. */
4607 replay_checkpoint(CHECKPOINT_RESET);
4608 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4609 register_global_state();
4610 if (loadvm) {
4611 Error *local_err = NULL;
4612 if (load_snapshot(loadvm, &local_err) < 0) {
4613 error_report_err(local_err);
4614 autostart = 0;
4615 exit(1);
4616 }
4617 }
4618 if (replay_mode != REPLAY_MODE_NONE) {
4619 replay_vmstate_init();
4620 }
4621
4622 qdev_prop_check_globals();
4623 if (vmstate_dump_file) {
4624 /* dump and exit */
4625 dump_vmstate_json_to_file(vmstate_dump_file);
4626 return 0;
4627 }
4628
4629 if (incoming) {
4630 Error *local_err = NULL;
4631 qemu_start_incoming_migration(incoming, &local_err);
4632 if (local_err) {
4633 error_reportf_err(local_err, "-incoming %s: ", incoming);
4634 exit(1);
4635 }
4636 } else if (autostart) {
4637 vm_start();
4638 }
4639
4640 accel_setup_post(current_machine);
4641 os_setup_post();
4642
4643 main_loop();
4644
4645 gdbserver_cleanup();
4646
4647 /* No more vcpu or device emulation activity beyond this point */
4648 vm_shutdown();
4649
4650 job_cancel_sync_all();
4651 bdrv_close_all();
4652
4653 res_free();
4654
4655 /* vhost-user must be cleaned up before chardevs. */
4656 tpm_cleanup();
4657 net_cleanup();
4658 audio_cleanup();
4659 monitor_cleanup();
4660 qemu_chr_cleanup();
4661 user_creatable_cleanup();
4662 migration_object_finalize();
4663 /* TODO: unref root container, check all devices are ok */
4664
4665 return 0;
4666 }
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