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