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tcg: Add TCG_OPF_BB_EXIT
[qemu/ar7.git] / vl.c
blob8353d3c718500bed5eae080ee87f70a8afb9524b
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 uint8_t qemu_extra_params_fw[2];
195 bool wakeup_suspend_enabled;
196
197 int icount_align_option;
198
199 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
200 * little-endian "wire format" described in the SMBIOS 2.6 specification.
201 */
202 QemuUUID qemu_uuid;
203 bool qemu_uuid_set;
204
205 static NotifierList exit_notifiers =
206 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
207
208 static NotifierList machine_init_done_notifiers =
209 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
210
211 bool xen_allowed;
212 uint32_t xen_domid;
213 enum xen_mode xen_mode = XEN_EMULATE;
214 bool xen_domid_restrict;
215
216 static int has_defaults = 1;
217 static int default_serial = 1;
218 static int default_parallel = 1;
219 static int default_virtcon = 1;
220 static int default_monitor = 1;
221 static int default_floppy = 1;
222 static int default_cdrom = 1;
223 static int default_sdcard = 1;
224 static int default_vga = 1;
225 static int default_net = 1;
226
227 static struct {
228 const char *driver;
229 int *flag;
230 } default_list[] = {
231 { .driver = "isa-serial", .flag = &default_serial },
232 { .driver = "isa-parallel", .flag = &default_parallel },
233 { .driver = "isa-fdc", .flag = &default_floppy },
234 { .driver = "floppy", .flag = &default_floppy },
235 { .driver = "ide-cd", .flag = &default_cdrom },
236 { .driver = "ide-hd", .flag = &default_cdrom },
237 { .driver = "ide-drive", .flag = &default_cdrom },
238 { .driver = "scsi-cd", .flag = &default_cdrom },
239 { .driver = "scsi-hd", .flag = &default_cdrom },
240 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
241 { .driver = "virtio-serial", .flag = &default_virtcon },
242 { .driver = "VGA", .flag = &default_vga },
243 { .driver = "isa-vga", .flag = &default_vga },
244 { .driver = "cirrus-vga", .flag = &default_vga },
245 { .driver = "isa-cirrus-vga", .flag = &default_vga },
246 { .driver = "vmware-svga", .flag = &default_vga },
247 { .driver = "qxl-vga", .flag = &default_vga },
248 { .driver = "virtio-vga", .flag = &default_vga },
249 };
250
251 static QemuOptsList qemu_rtc_opts = {
252 .name = "rtc",
253 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
254 .merge_lists = true,
255 .desc = {
256 {
257 .name = "base",
258 .type = QEMU_OPT_STRING,
259 },{
260 .name = "clock",
261 .type = QEMU_OPT_STRING,
262 },{
263 .name = "driftfix",
264 .type = QEMU_OPT_STRING,
265 },
266 { /* end of list */ }
267 },
268 };
269
270 static QemuOptsList qemu_option_rom_opts = {
271 .name = "option-rom",
272 .implied_opt_name = "romfile",
273 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
274 .desc = {
275 {
276 .name = "bootindex",
277 .type = QEMU_OPT_NUMBER,
278 }, {
279 .name = "romfile",
280 .type = QEMU_OPT_STRING,
281 },
282 { /* end of list */ }
283 },
284 };
285
286 static QemuOptsList qemu_machine_opts = {
287 .name = "machine",
288 .implied_opt_name = "type",
289 .merge_lists = true,
290 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
291 .desc = {
292 /*
293 * no elements => accept any
294 * sanity checking will happen later
295 * when setting machine properties
296 */
297 { }
298 },
299 };
300
301 static QemuOptsList qemu_accel_opts = {
302 .name = "accel",
303 .implied_opt_name = "accel",
304 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
305 .merge_lists = true,
306 .desc = {
307 {
308 .name = "accel",
309 .type = QEMU_OPT_STRING,
310 .help = "Select the type of accelerator",
311 },
312 {
313 .name = "thread",
314 .type = QEMU_OPT_STRING,
315 .help = "Enable/disable multi-threaded TCG",
316 },
317 { /* end of list */ }
318 },
319 };
320
321 static QemuOptsList qemu_boot_opts = {
322 .name = "boot-opts",
323 .implied_opt_name = "order",
324 .merge_lists = true,
325 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
326 .desc = {
327 {
328 .name = "order",
329 .type = QEMU_OPT_STRING,
330 }, {
331 .name = "once",
332 .type = QEMU_OPT_STRING,
333 }, {
334 .name = "menu",
335 .type = QEMU_OPT_BOOL,
336 }, {
337 .name = "splash",
338 .type = QEMU_OPT_STRING,
339 }, {
340 .name = "splash-time",
341 .type = QEMU_OPT_STRING,
342 }, {
343 .name = "reboot-timeout",
344 .type = QEMU_OPT_STRING,
345 }, {
346 .name = "strict",
347 .type = QEMU_OPT_BOOL,
348 },
349 { /*End of list */ }
350 },
351 };
352
353 static QemuOptsList qemu_add_fd_opts = {
354 .name = "add-fd",
355 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
356 .desc = {
357 {
358 .name = "fd",
359 .type = QEMU_OPT_NUMBER,
360 .help = "file descriptor of which a duplicate is added to fd set",
361 },{
362 .name = "set",
363 .type = QEMU_OPT_NUMBER,
364 .help = "ID of the fd set to add fd to",
365 },{
366 .name = "opaque",
367 .type = QEMU_OPT_STRING,
368 .help = "free-form string used to describe fd",
369 },
370 { /* end of list */ }
371 },
372 };
373
374 static QemuOptsList qemu_object_opts = {
375 .name = "object",
376 .implied_opt_name = "qom-type",
377 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
378 .desc = {
379 { }
380 },
381 };
382
383 static QemuOptsList qemu_tpmdev_opts = {
384 .name = "tpmdev",
385 .implied_opt_name = "type",
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
387 .desc = {
388 /* options are defined in the TPM backends */
389 { /* end of list */ }
390 },
391 };
392
393 static QemuOptsList qemu_realtime_opts = {
394 .name = "realtime",
395 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
396 .desc = {
397 {
398 .name = "mlock",
399 .type = QEMU_OPT_BOOL,
400 },
401 { /* end of list */ }
402 },
403 };
404
405 static QemuOptsList qemu_overcommit_opts = {
406 .name = "overcommit",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
408 .desc = {
409 {
410 .name = "mem-lock",
411 .type = QEMU_OPT_BOOL,
412 },
413 {
414 .name = "cpu-pm",
415 .type = QEMU_OPT_BOOL,
416 },
417 { /* end of list */ }
418 },
419 };
420
421 static QemuOptsList qemu_msg_opts = {
422 .name = "msg",
423 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
424 .desc = {
425 {
426 .name = "timestamp",
427 .type = QEMU_OPT_BOOL,
428 },
429 { /* end of list */ }
430 },
431 };
432
433 static QemuOptsList qemu_name_opts = {
434 .name = "name",
435 .implied_opt_name = "guest",
436 .merge_lists = true,
437 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
438 .desc = {
439 {
440 .name = "guest",
441 .type = QEMU_OPT_STRING,
442 .help = "Sets the name of the guest.\n"
443 "This name will be displayed in the SDL window caption.\n"
444 "The name will also be used for the VNC server",
445 }, {
446 .name = "process",
447 .type = QEMU_OPT_STRING,
448 .help = "Sets the name of the QEMU process, as shown in top etc",
449 }, {
450 .name = "debug-threads",
451 .type = QEMU_OPT_BOOL,
452 .help = "When enabled, name the individual threads; defaults off.\n"
453 "NOTE: The thread names are for debugging and not a\n"
454 "stable API.",
455 },
456 { /* End of list */ }
457 },
458 };
459
460 static QemuOptsList qemu_mem_opts = {
461 .name = "memory",
462 .implied_opt_name = "size",
463 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
464 .merge_lists = true,
465 .desc = {
466 {
467 .name = "size",
468 .type = QEMU_OPT_SIZE,
469 },
470 {
471 .name = "slots",
472 .type = QEMU_OPT_NUMBER,
473 },
474 {
475 .name = "maxmem",
476 .type = QEMU_OPT_SIZE,
477 },
478 { /* end of list */ }
479 },
480 };
481
482 static QemuOptsList qemu_icount_opts = {
483 .name = "icount",
484 .implied_opt_name = "shift",
485 .merge_lists = true,
486 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
487 .desc = {
488 {
489 .name = "shift",
490 .type = QEMU_OPT_STRING,
491 }, {
492 .name = "align",
493 .type = QEMU_OPT_BOOL,
494 }, {
495 .name = "sleep",
496 .type = QEMU_OPT_BOOL,
497 }, {
498 .name = "rr",
499 .type = QEMU_OPT_STRING,
500 }, {
501 .name = "rrfile",
502 .type = QEMU_OPT_STRING,
503 }, {
504 .name = "rrsnapshot",
505 .type = QEMU_OPT_STRING,
506 },
507 { /* end of list */ }
508 },
509 };
510
511 static QemuOptsList qemu_semihosting_config_opts = {
512 .name = "semihosting-config",
513 .implied_opt_name = "enable",
514 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
515 .desc = {
516 {
517 .name = "enable",
518 .type = QEMU_OPT_BOOL,
519 }, {
520 .name = "target",
521 .type = QEMU_OPT_STRING,
522 }, {
523 .name = "arg",
524 .type = QEMU_OPT_STRING,
525 },
526 { /* end of list */ }
527 },
528 };
529
530 static QemuOptsList qemu_fw_cfg_opts = {
531 .name = "fw_cfg",
532 .implied_opt_name = "name",
533 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
534 .desc = {
535 {
536 .name = "name",
537 .type = QEMU_OPT_STRING,
538 .help = "Sets the fw_cfg name of the blob to be inserted",
539 }, {
540 .name = "file",
541 .type = QEMU_OPT_STRING,
542 .help = "Sets the name of the file from which "
543 "the fw_cfg blob will be loaded",
544 }, {
545 .name = "string",
546 .type = QEMU_OPT_STRING,
547 .help = "Sets content of the blob to be inserted from a string",
548 },
549 { /* end of list */ }
550 },
551 };
552
553 /**
554 * Get machine options
555 *
556 * Returns: machine options (never null).
557 */
558 QemuOpts *qemu_get_machine_opts(void)
559 {
560 return qemu_find_opts_singleton("machine");
561 }
562
563 const char *qemu_get_vm_name(void)
564 {
565 return qemu_name;
566 }
567
568 static void res_free(void)
569 {
570 g_free(boot_splash_filedata);
571 boot_splash_filedata = NULL;
572 }
573
574 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
575 {
576 const char *driver = qemu_opt_get(opts, "driver");
577 int i;
578
579 if (!driver)
580 return 0;
581 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
582 if (strcmp(default_list[i].driver, driver) != 0)
583 continue;
584 *(default_list[i].flag) = 0;
585 }
586 return 0;
587 }
588
589 /***********************************************************/
590 /* QEMU state */
591
592 static RunState current_run_state = RUN_STATE_PRECONFIG;
593
594 /* We use RUN_STATE__MAX but any invalid value will do */
595 static RunState vmstop_requested = RUN_STATE__MAX;
596 static QemuMutex vmstop_lock;
597
598 typedef struct {
599 RunState from;
600 RunState to;
601 } RunStateTransition;
602
603 static const RunStateTransition runstate_transitions_def[] = {
604 /* from -> to */
605 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
606 /* Early switch to inmigrate state to allow -incoming CLI option work
607 * as it used to. TODO: delay actual switching to inmigrate state to
608 * the point after machine is built and remove this hack.
609 */
610 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
611
612 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
613 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
614 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
615
616 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
617 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
618 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
619 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
620 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
621 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
622 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
623 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
624 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
625 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
626 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
627 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
628
629 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
630 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
631 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
632
633 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
634 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
635 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
636
637 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
638 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
640 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
641 { RUN_STATE_PAUSED, RUN_STATE_COLO},
642
643 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
644 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
645 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
646
647 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
648 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
649 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
650
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
652 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
653 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
654 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
655 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
656
657 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
658 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
659
660 { RUN_STATE_COLO, RUN_STATE_RUNNING },
661
662 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
663 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
664 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
665 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
666 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
667 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
668 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
669 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
670 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
671 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
672 { RUN_STATE_RUNNING, RUN_STATE_COLO},
673
674 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
675
676 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
677 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
678 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
679
680 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
681 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
682 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
683 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
684 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
685 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
686
687 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
688 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
689 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
690 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
691
692 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
693 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
694 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
695
696 { RUN_STATE__MAX, RUN_STATE__MAX },
697 };
698
699 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
700
701 bool runstate_check(RunState state)
702 {
703 return current_run_state == state;
704 }
705
706 bool runstate_store(char *str, size_t size)
707 {
708 const char *state = RunState_str(current_run_state);
709 size_t len = strlen(state) + 1;
710
711 if (len > size) {
712 return false;
713 }
714 memcpy(str, state, len);
715 return true;
716 }
717
718 static void runstate_init(void)
719 {
720 const RunStateTransition *p;
721
722 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
723 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
724 runstate_valid_transitions[p->from][p->to] = true;
725 }
726
727 qemu_mutex_init(&vmstop_lock);
728 }
729
730 /* This function will abort() on invalid state transitions */
731 void runstate_set(RunState new_state)
732 {
733 assert(new_state < RUN_STATE__MAX);
734
735 if (current_run_state == new_state) {
736 return;
737 }
738
739 if (!runstate_valid_transitions[current_run_state][new_state]) {
740 error_report("invalid runstate transition: '%s' -> '%s'",
741 RunState_str(current_run_state),
742 RunState_str(new_state));
743 abort();
744 }
745 trace_runstate_set(new_state);
746 current_run_state = new_state;
747 }
748
749 int runstate_is_running(void)
750 {
751 return runstate_check(RUN_STATE_RUNNING);
752 }
753
754 bool runstate_needs_reset(void)
755 {
756 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
757 runstate_check(RUN_STATE_SHUTDOWN);
758 }
759
760 StatusInfo *qmp_query_status(Error **errp)
761 {
762 StatusInfo *info = g_malloc0(sizeof(*info));
763
764 info->running = runstate_is_running();
765 info->singlestep = singlestep;
766 info->status = current_run_state;
767
768 return info;
769 }
770
771 bool qemu_vmstop_requested(RunState *r)
772 {
773 qemu_mutex_lock(&vmstop_lock);
774 *r = vmstop_requested;
775 vmstop_requested = RUN_STATE__MAX;
776 qemu_mutex_unlock(&vmstop_lock);
777 return *r < RUN_STATE__MAX;
778 }
779
780 void qemu_system_vmstop_request_prepare(void)
781 {
782 qemu_mutex_lock(&vmstop_lock);
783 }
784
785 void qemu_system_vmstop_request(RunState state)
786 {
787 vmstop_requested = state;
788 qemu_mutex_unlock(&vmstop_lock);
789 qemu_notify_event();
790 }
791
792 /***********************************************************/
793 /* RTC reference time/date access */
794 static time_t qemu_ref_timedate(QEMUClockType clock)
795 {
796 time_t value = qemu_clock_get_ms(clock) / 1000;
797 switch (clock) {
798 case QEMU_CLOCK_REALTIME:
799 value -= rtc_realtime_clock_offset;
800 /* no break */
801 case QEMU_CLOCK_VIRTUAL:
802 value += rtc_ref_start_datetime;
803 break;
804 case QEMU_CLOCK_HOST:
805 if (rtc_base_type == RTC_BASE_DATETIME) {
806 value -= rtc_host_datetime_offset;
807 }
808 break;
809 default:
810 assert(0);
811 }
812 return value;
813 }
814
815 void qemu_get_timedate(struct tm *tm, int offset)
816 {
817 time_t ti = qemu_ref_timedate(rtc_clock);
818
819 ti += offset;
820
821 switch (rtc_base_type) {
822 case RTC_BASE_DATETIME:
823 case RTC_BASE_UTC:
824 gmtime_r(&ti, tm);
825 break;
826 case RTC_BASE_LOCALTIME:
827 localtime_r(&ti, tm);
828 break;
829 }
830 }
831
832 int qemu_timedate_diff(struct tm *tm)
833 {
834 time_t seconds;
835
836 switch (rtc_base_type) {
837 case RTC_BASE_DATETIME:
838 case RTC_BASE_UTC:
839 seconds = mktimegm(tm);
840 break;
841 case RTC_BASE_LOCALTIME:
842 {
843 struct tm tmp = *tm;
844 tmp.tm_isdst = -1; /* use timezone to figure it out */
845 seconds = mktime(&tmp);
846 break;
847 }
848 default:
849 abort();
850 }
851
852 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
853 }
854
855 static void configure_rtc_base_datetime(const char *startdate)
856 {
857 time_t rtc_start_datetime;
858 struct tm tm;
859
860 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
861 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
862 /* OK */
863 } else if (sscanf(startdate, "%d-%d-%d",
864 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
865 tm.tm_hour = 0;
866 tm.tm_min = 0;
867 tm.tm_sec = 0;
868 } else {
869 goto date_fail;
870 }
871 tm.tm_year -= 1900;
872 tm.tm_mon--;
873 rtc_start_datetime = mktimegm(&tm);
874 if (rtc_start_datetime == -1) {
875 date_fail:
876 error_report("invalid datetime format");
877 error_printf("valid formats: "
878 "'2006-06-17T16:01:21' or '2006-06-17'\n");
879 exit(1);
880 }
881 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
882 rtc_ref_start_datetime = rtc_start_datetime;
883 }
884
885 static void configure_rtc(QemuOpts *opts)
886 {
887 const char *value;
888
889 /* Set defaults */
890 rtc_clock = QEMU_CLOCK_HOST;
891 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
892 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
893
894 value = qemu_opt_get(opts, "base");
895 if (value) {
896 if (!strcmp(value, "utc")) {
897 rtc_base_type = RTC_BASE_UTC;
898 } else if (!strcmp(value, "localtime")) {
899 Error *blocker = NULL;
900 rtc_base_type = RTC_BASE_LOCALTIME;
901 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
902 "-rtc base=localtime");
903 replay_add_blocker(blocker);
904 } else {
905 rtc_base_type = RTC_BASE_DATETIME;
906 configure_rtc_base_datetime(value);
907 }
908 }
909 value = qemu_opt_get(opts, "clock");
910 if (value) {
911 if (!strcmp(value, "host")) {
912 rtc_clock = QEMU_CLOCK_HOST;
913 } else if (!strcmp(value, "rt")) {
914 rtc_clock = QEMU_CLOCK_REALTIME;
915 } else if (!strcmp(value, "vm")) {
916 rtc_clock = QEMU_CLOCK_VIRTUAL;
917 } else {
918 error_report("invalid option value '%s'", value);
919 exit(1);
920 }
921 }
922 value = qemu_opt_get(opts, "driftfix");
923 if (value) {
924 if (!strcmp(value, "slew")) {
925 static GlobalProperty slew_lost_ticks = {
926 .driver = "mc146818rtc",
927 .property = "lost_tick_policy",
928 .value = "slew",
929 };
930
931 qdev_prop_register_global(&slew_lost_ticks);
932 } else if (!strcmp(value, "none")) {
933 /* discard is default */
934 } else {
935 error_report("invalid option value '%s'", value);
936 exit(1);
937 }
938 }
939 }
940
941 /***********************************************************/
942 /* Bluetooth support */
943 static int nb_hcis;
944 static int cur_hci;
945 static struct HCIInfo *hci_table[MAX_NICS];
946
947 struct HCIInfo *qemu_next_hci(void)
948 {
949 if (cur_hci == nb_hcis)
950 return &null_hci;
951
952 return hci_table[cur_hci++];
953 }
954
955 static int bt_hci_parse(const char *str)
956 {
957 struct HCIInfo *hci;
958 bdaddr_t bdaddr;
959
960 if (nb_hcis >= MAX_NICS) {
961 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
962 return -1;
963 }
964
965 hci = hci_init(str);
966 if (!hci)
967 return -1;
968
969 bdaddr.b[0] = 0x52;
970 bdaddr.b[1] = 0x54;
971 bdaddr.b[2] = 0x00;
972 bdaddr.b[3] = 0x12;
973 bdaddr.b[4] = 0x34;
974 bdaddr.b[5] = 0x56 + nb_hcis;
975 hci->bdaddr_set(hci, bdaddr.b);
976
977 hci_table[nb_hcis++] = hci;
978
979 return 0;
980 }
981
982 static void bt_vhci_add(int vlan_id)
983 {
984 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
985
986 if (!vlan->slave)
987 warn_report("adding a VHCI to an empty scatternet %i",
988 vlan_id);
989
990 bt_vhci_init(bt_new_hci(vlan));
991 }
992
993 static struct bt_device_s *bt_device_add(const char *opt)
994 {
995 struct bt_scatternet_s *vlan;
996 int vlan_id = 0;
997 char *endp = strstr(opt, ",vlan=");
998 int len = (endp ? endp - opt : strlen(opt)) + 1;
999 char devname[10];
1000
1001 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1002
1003 if (endp) {
1004 vlan_id = strtol(endp + 6, &endp, 0);
1005 if (*endp) {
1006 error_report("unrecognised bluetooth vlan Id");
1007 return 0;
1008 }
1009 }
1010
1011 vlan = qemu_find_bt_vlan(vlan_id);
1012
1013 if (!vlan->slave)
1014 warn_report("adding a slave device to an empty scatternet %i",
1015 vlan_id);
1016
1017 if (!strcmp(devname, "keyboard"))
1018 return bt_keyboard_init(vlan);
1019
1020 error_report("unsupported bluetooth device '%s'", devname);
1021 return 0;
1022 }
1023
1024 static int bt_parse(const char *opt)
1025 {
1026 const char *endp, *p;
1027 int vlan;
1028
1029 if (strstart(opt, "hci", &endp)) {
1030 if (!*endp || *endp == ',') {
1031 if (*endp)
1032 if (!strstart(endp, ",vlan=", 0))
1033 opt = endp + 1;
1034
1035 return bt_hci_parse(opt);
1036 }
1037 } else if (strstart(opt, "vhci", &endp)) {
1038 if (!*endp || *endp == ',') {
1039 if (*endp) {
1040 if (strstart(endp, ",vlan=", &p)) {
1041 vlan = strtol(p, (char **) &endp, 0);
1042 if (*endp) {
1043 error_report("bad scatternet '%s'", p);
1044 return 1;
1045 }
1046 } else {
1047 error_report("bad parameter '%s'", endp + 1);
1048 return 1;
1049 }
1050 } else
1051 vlan = 0;
1052
1053 bt_vhci_add(vlan);
1054 return 0;
1055 }
1056 } else if (strstart(opt, "device:", &endp))
1057 return !bt_device_add(endp);
1058
1059 error_report("bad bluetooth parameter '%s'", opt);
1060 return 1;
1061 }
1062
1063 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1064 {
1065 const char *proc_name;
1066
1067 if (qemu_opt_get(opts, "debug-threads")) {
1068 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1069 }
1070 qemu_name = qemu_opt_get(opts, "guest");
1071
1072 proc_name = qemu_opt_get(opts, "process");
1073 if (proc_name) {
1074 os_set_proc_name(proc_name);
1075 }
1076
1077 return 0;
1078 }
1079
1080 bool defaults_enabled(void)
1081 {
1082 return has_defaults;
1083 }
1084
1085 #ifndef _WIN32
1086 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1087 {
1088 int fd, dupfd, flags;
1089 int64_t fdset_id;
1090 const char *fd_opaque = NULL;
1091 AddfdInfo *fdinfo;
1092
1093 fd = qemu_opt_get_number(opts, "fd", -1);
1094 fdset_id = qemu_opt_get_number(opts, "set", -1);
1095 fd_opaque = qemu_opt_get(opts, "opaque");
1096
1097 if (fd < 0) {
1098 error_setg(errp, "fd option is required and must be non-negative");
1099 return -1;
1100 }
1101
1102 if (fd <= STDERR_FILENO) {
1103 error_setg(errp, "fd cannot be a standard I/O stream");
1104 return -1;
1105 }
1106
1107 /*
1108 * All fds inherited across exec() necessarily have FD_CLOEXEC
1109 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1110 */
1111 flags = fcntl(fd, F_GETFD);
1112 if (flags == -1 || (flags & FD_CLOEXEC)) {
1113 error_setg(errp, "fd is not valid or already in use");
1114 return -1;
1115 }
1116
1117 if (fdset_id < 0) {
1118 error_setg(errp, "set option is required and must be non-negative");
1119 return -1;
1120 }
1121
1122 #ifdef F_DUPFD_CLOEXEC
1123 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1124 #else
1125 dupfd = dup(fd);
1126 if (dupfd != -1) {
1127 qemu_set_cloexec(dupfd);
1128 }
1129 #endif
1130 if (dupfd == -1) {
1131 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1132 return -1;
1133 }
1134
1135 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1136 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1137 &error_abort);
1138 g_free(fdinfo);
1139
1140 return 0;
1141 }
1142
1143 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1144 {
1145 int fd;
1146
1147 fd = qemu_opt_get_number(opts, "fd", -1);
1148 close(fd);
1149
1150 return 0;
1151 }
1152 #endif
1153
1154 /***********************************************************/
1155 /* QEMU Block devices */
1156
1157 #define HD_OPTS "media=disk"
1158 #define CDROM_OPTS "media=cdrom"
1159 #define FD_OPTS ""
1160 #define PFLASH_OPTS ""
1161 #define MTD_OPTS ""
1162 #define SD_OPTS ""
1163
1164 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1165 {
1166 BlockInterfaceType *block_default_type = opaque;
1167
1168 return drive_new(opts, *block_default_type, errp) == NULL;
1169 }
1170
1171 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1172 {
1173 if (qemu_opt_get(opts, "snapshot") == NULL) {
1174 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1175 }
1176 return 0;
1177 }
1178
1179 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1180 int index, const char *optstr)
1181 {
1182 QemuOpts *opts;
1183 DriveInfo *dinfo;
1184
1185 if (!enable || drive_get_by_index(type, index)) {
1186 return;
1187 }
1188
1189 opts = drive_add(type, index, NULL, optstr);
1190 if (snapshot) {
1191 drive_enable_snapshot(NULL, opts, NULL);
1192 }
1193
1194 dinfo = drive_new(opts, type, &error_abort);
1195 dinfo->is_default = true;
1196
1197 }
1198
1199 static QemuOptsList qemu_smp_opts = {
1200 .name = "smp-opts",
1201 .implied_opt_name = "cpus",
1202 .merge_lists = true,
1203 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1204 .desc = {
1205 {
1206 .name = "cpus",
1207 .type = QEMU_OPT_NUMBER,
1208 }, {
1209 .name = "sockets",
1210 .type = QEMU_OPT_NUMBER,
1211 }, {
1212 .name = "cores",
1213 .type = QEMU_OPT_NUMBER,
1214 }, {
1215 .name = "threads",
1216 .type = QEMU_OPT_NUMBER,
1217 }, {
1218 .name = "maxcpus",
1219 .type = QEMU_OPT_NUMBER,
1220 },
1221 { /*End of list */ }
1222 },
1223 };
1224
1225 static void smp_parse(QemuOpts *opts)
1226 {
1227 if (opts) {
1228 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1229 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1230 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1231 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1232
1233 /* compute missing values, prefer sockets over cores over threads */
1234 if (cpus == 0 || sockets == 0) {
1235 cores = cores > 0 ? cores : 1;
1236 threads = threads > 0 ? threads : 1;
1237 if (cpus == 0) {
1238 sockets = sockets > 0 ? sockets : 1;
1239 cpus = cores * threads * sockets;
1240 } else {
1241 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1242 sockets = max_cpus / (cores * threads);
1243 }
1244 } else if (cores == 0) {
1245 threads = threads > 0 ? threads : 1;
1246 cores = cpus / (sockets * threads);
1247 cores = cores > 0 ? cores : 1;
1248 } else if (threads == 0) {
1249 threads = cpus / (cores * sockets);
1250 threads = threads > 0 ? threads : 1;
1251 } else if (sockets * cores * threads < cpus) {
1252 error_report("cpu topology: "
1253 "sockets (%u) * cores (%u) * threads (%u) < "
1254 "smp_cpus (%u)",
1255 sockets, cores, threads, cpus);
1256 exit(1);
1257 }
1258
1259 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1260
1261 if (max_cpus < cpus) {
1262 error_report("maxcpus must be equal to or greater than smp");
1263 exit(1);
1264 }
1265
1266 if (sockets * cores * threads > max_cpus) {
1267 error_report("cpu topology: "
1268 "sockets (%u) * cores (%u) * threads (%u) > "
1269 "maxcpus (%u)",
1270 sockets, cores, threads, max_cpus);
1271 exit(1);
1272 }
1273
1274 if (sockets * cores * threads != max_cpus) {
1275 warn_report("Invalid CPU topology deprecated: "
1276 "sockets (%u) * cores (%u) * threads (%u) "
1277 "!= maxcpus (%u)",
1278 sockets, cores, threads, max_cpus);
1279 }
1280
1281 smp_cpus = cpus;
1282 smp_cores = cores;
1283 smp_threads = threads;
1284 }
1285
1286 if (smp_cpus > 1) {
1287 Error *blocker = NULL;
1288 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1289 replay_add_blocker(blocker);
1290 }
1291 }
1292
1293 static void realtime_init(void)
1294 {
1295 if (enable_mlock) {
1296 if (os_mlock() < 0) {
1297 error_report("locking memory failed");
1298 exit(1);
1299 }
1300 }
1301 }
1302
1303
1304 static void configure_msg(QemuOpts *opts)
1305 {
1306 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1307 }
1308
1309 /***********************************************************/
1310 /* Semihosting */
1311
1312 typedef struct SemihostingConfig {
1313 bool enabled;
1314 SemihostingTarget target;
1315 const char **argv;
1316 int argc;
1317 const char *cmdline; /* concatenated argv */
1318 } SemihostingConfig;
1319
1320 static SemihostingConfig semihosting;
1321
1322 bool semihosting_enabled(void)
1323 {
1324 return semihosting.enabled;
1325 }
1326
1327 SemihostingTarget semihosting_get_target(void)
1328 {
1329 return semihosting.target;
1330 }
1331
1332 const char *semihosting_get_arg(int i)
1333 {
1334 if (i >= semihosting.argc) {
1335 return NULL;
1336 }
1337 return semihosting.argv[i];
1338 }
1339
1340 int semihosting_get_argc(void)
1341 {
1342 return semihosting.argc;
1343 }
1344
1345 const char *semihosting_get_cmdline(void)
1346 {
1347 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1348 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1349 }
1350 return semihosting.cmdline;
1351 }
1352
1353 static int add_semihosting_arg(void *opaque,
1354 const char *name, const char *val,
1355 Error **errp)
1356 {
1357 SemihostingConfig *s = opaque;
1358 if (strcmp(name, "arg") == 0) {
1359 s->argc++;
1360 /* one extra element as g_strjoinv() expects NULL-terminated array */
1361 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1362 s->argv[s->argc - 1] = val;
1363 s->argv[s->argc] = NULL;
1364 }
1365 return 0;
1366 }
1367
1368 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1369 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1370 {
1371 char *cmd_token;
1372
1373 /* argv[0] */
1374 add_semihosting_arg(&semihosting, "arg", file, NULL);
1375
1376 /* split -append and initialize argv[1..n] */
1377 cmd_token = strtok(g_strdup(cmd), " ");
1378 while (cmd_token) {
1379 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1380 cmd_token = strtok(NULL, " ");
1381 }
1382 }
1383
1384 /* Now we still need this for compatibility with XEN. */
1385 bool has_igd_gfx_passthru;
1386 static void igd_gfx_passthru(void)
1387 {
1388 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1389 }
1390
1391 /***********************************************************/
1392 /* USB devices */
1393
1394 static int usb_device_add(const char *devname)
1395 {
1396 USBDevice *dev = NULL;
1397
1398 if (!machine_usb(current_machine)) {
1399 return -1;
1400 }
1401
1402 dev = usbdevice_create(devname);
1403 if (!dev)
1404 return -1;
1405
1406 return 0;
1407 }
1408
1409 static int usb_parse(const char *cmdline)
1410 {
1411 int r;
1412 r = usb_device_add(cmdline);
1413 if (r < 0) {
1414 error_report("could not add USB device '%s'", cmdline);
1415 }
1416 return r;
1417 }
1418
1419 /***********************************************************/
1420 /* machine registration */
1421
1422 MachineState *current_machine;
1423
1424 static MachineClass *find_machine(const char *name)
1425 {
1426 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1427 MachineClass *mc = NULL;
1428
1429 for (el = machines; el; el = el->next) {
1430 MachineClass *temp = el->data;
1431
1432 if (!strcmp(temp->name, name)) {
1433 mc = temp;
1434 break;
1435 }
1436 if (temp->alias &&
1437 !strcmp(temp->alias, name)) {
1438 mc = temp;
1439 break;
1440 }
1441 }
1442
1443 g_slist_free(machines);
1444 return mc;
1445 }
1446
1447 MachineClass *find_default_machine(void)
1448 {
1449 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1450 MachineClass *mc = NULL;
1451
1452 for (el = machines; el; el = el->next) {
1453 MachineClass *temp = el->data;
1454
1455 if (temp->is_default) {
1456 mc = temp;
1457 break;
1458 }
1459 }
1460
1461 g_slist_free(machines);
1462 return mc;
1463 }
1464
1465 MachineInfoList *qmp_query_machines(Error **errp)
1466 {
1467 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1468 MachineInfoList *mach_list = NULL;
1469
1470 for (el = machines; el; el = el->next) {
1471 MachineClass *mc = el->data;
1472 MachineInfoList *entry;
1473 MachineInfo *info;
1474
1475 info = g_malloc0(sizeof(*info));
1476 if (mc->is_default) {
1477 info->has_is_default = true;
1478 info->is_default = true;
1479 }
1480
1481 if (mc->alias) {
1482 info->has_alias = true;
1483 info->alias = g_strdup(mc->alias);
1484 }
1485
1486 info->name = g_strdup(mc->name);
1487 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1488 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1489
1490 entry = g_malloc0(sizeof(*entry));
1491 entry->value = info;
1492 entry->next = mach_list;
1493 mach_list = entry;
1494 }
1495
1496 g_slist_free(machines);
1497 return mach_list;
1498 }
1499
1500 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1501 {
1502 ObjectProperty *prop;
1503 ObjectPropertyIterator iter;
1504
1505 if (!qemu_opt_has_help_opt(opts)) {
1506 return 0;
1507 }
1508
1509 object_property_iter_init(&iter, OBJECT(machine));
1510 while ((prop = object_property_iter_next(&iter))) {
1511 if (!prop->set) {
1512 continue;
1513 }
1514
1515 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1516 prop->name, prop->type);
1517 if (prop->description) {
1518 error_printf(" (%s)\n", prop->description);
1519 } else {
1520 error_printf("\n");
1521 }
1522 }
1523
1524 return 1;
1525 }
1526
1527 struct vm_change_state_entry {
1528 VMChangeStateHandler *cb;
1529 void *opaque;
1530 QLIST_ENTRY (vm_change_state_entry) entries;
1531 };
1532
1533 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1534
1535 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1536 void *opaque)
1537 {
1538 VMChangeStateEntry *e;
1539
1540 e = g_malloc0(sizeof (*e));
1541
1542 e->cb = cb;
1543 e->opaque = opaque;
1544 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1545 return e;
1546 }
1547
1548 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1549 {
1550 QLIST_REMOVE (e, entries);
1551 g_free (e);
1552 }
1553
1554 void vm_state_notify(int running, RunState state)
1555 {
1556 VMChangeStateEntry *e, *next;
1557
1558 trace_vm_state_notify(running, state);
1559
1560 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1561 e->cb(e->opaque, running, state);
1562 }
1563 }
1564
1565 static ShutdownCause reset_requested;
1566 static ShutdownCause shutdown_requested;
1567 static int shutdown_signal;
1568 static pid_t shutdown_pid;
1569 static int powerdown_requested;
1570 static int debug_requested;
1571 static int suspend_requested;
1572 static bool preconfig_exit_requested = true;
1573 static WakeupReason wakeup_reason;
1574 static NotifierList powerdown_notifiers =
1575 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1576 static NotifierList suspend_notifiers =
1577 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1578 static NotifierList wakeup_notifiers =
1579 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1580 static NotifierList shutdown_notifiers =
1581 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1582 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1583
1584 ShutdownCause qemu_shutdown_requested_get(void)
1585 {
1586 return shutdown_requested;
1587 }
1588
1589 ShutdownCause qemu_reset_requested_get(void)
1590 {
1591 return reset_requested;
1592 }
1593
1594 static int qemu_shutdown_requested(void)
1595 {
1596 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1597 }
1598
1599 static void qemu_kill_report(void)
1600 {
1601 if (!qtest_driver() && shutdown_signal) {
1602 if (shutdown_pid == 0) {
1603 /* This happens for eg ^C at the terminal, so it's worth
1604 * avoiding printing an odd message in that case.
1605 */
1606 error_report("terminating on signal %d", shutdown_signal);
1607 } else {
1608 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1609
1610 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1611 shutdown_signal, shutdown_pid,
1612 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1613 g_free(shutdown_cmd);
1614 }
1615 shutdown_signal = 0;
1616 }
1617 }
1618
1619 static ShutdownCause qemu_reset_requested(void)
1620 {
1621 ShutdownCause r = reset_requested;
1622
1623 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1624 reset_requested = SHUTDOWN_CAUSE_NONE;
1625 return r;
1626 }
1627 return SHUTDOWN_CAUSE_NONE;
1628 }
1629
1630 static int qemu_suspend_requested(void)
1631 {
1632 int r = suspend_requested;
1633 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1634 suspend_requested = 0;
1635 return r;
1636 }
1637 return false;
1638 }
1639
1640 static WakeupReason qemu_wakeup_requested(void)
1641 {
1642 return wakeup_reason;
1643 }
1644
1645 static int qemu_powerdown_requested(void)
1646 {
1647 int r = powerdown_requested;
1648 powerdown_requested = 0;
1649 return r;
1650 }
1651
1652 static int qemu_debug_requested(void)
1653 {
1654 int r = debug_requested;
1655 debug_requested = 0;
1656 return r;
1657 }
1658
1659 void qemu_exit_preconfig_request(void)
1660 {
1661 preconfig_exit_requested = true;
1662 }
1663
1664 /*
1665 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1666 */
1667 void qemu_system_reset(ShutdownCause reason)
1668 {
1669 MachineClass *mc;
1670
1671 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1672
1673 cpu_synchronize_all_states();
1674
1675 if (mc && mc->reset) {
1676 mc->reset();
1677 } else {
1678 qemu_devices_reset();
1679 }
1680 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1681 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1682 }
1683 cpu_synchronize_all_post_reset();
1684 }
1685
1686 void qemu_system_guest_panicked(GuestPanicInformation *info)
1687 {
1688 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1689
1690 if (current_cpu) {
1691 current_cpu->crash_occurred = true;
1692 }
1693 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1694 !!info, info);
1695 vm_stop(RUN_STATE_GUEST_PANICKED);
1696 if (!no_shutdown) {
1697 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1698 !!info, info);
1699 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1700 }
1701
1702 if (info) {
1703 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1704 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1705 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1706 info->u.hyper_v.arg1,
1707 info->u.hyper_v.arg2,
1708 info->u.hyper_v.arg3,
1709 info->u.hyper_v.arg4,
1710 info->u.hyper_v.arg5);
1711 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1712 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1713 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1714 info->u.s390.core,
1715 S390CrashReason_str(info->u.s390.reason),
1716 info->u.s390.psw_mask,
1717 info->u.s390.psw_addr);
1718 }
1719 qapi_free_GuestPanicInformation(info);
1720 }
1721 }
1722
1723 void qemu_system_reset_request(ShutdownCause reason)
1724 {
1725 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1726 shutdown_requested = reason;
1727 } else {
1728 reset_requested = reason;
1729 }
1730 cpu_stop_current();
1731 qemu_notify_event();
1732 }
1733
1734 static void qemu_system_suspend(void)
1735 {
1736 pause_all_vcpus();
1737 notifier_list_notify(&suspend_notifiers, NULL);
1738 runstate_set(RUN_STATE_SUSPENDED);
1739 qapi_event_send_suspend();
1740 }
1741
1742 void qemu_system_suspend_request(void)
1743 {
1744 if (runstate_check(RUN_STATE_SUSPENDED)) {
1745 return;
1746 }
1747 suspend_requested = 1;
1748 cpu_stop_current();
1749 qemu_notify_event();
1750 }
1751
1752 void qemu_register_suspend_notifier(Notifier *notifier)
1753 {
1754 notifier_list_add(&suspend_notifiers, notifier);
1755 }
1756
1757 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1758 {
1759 trace_system_wakeup_request(reason);
1760
1761 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1762 error_setg(errp,
1763 "Unable to wake up: guest is not in suspended state");
1764 return;
1765 }
1766 if (!(wakeup_reason_mask & (1 << reason))) {
1767 return;
1768 }
1769 runstate_set(RUN_STATE_RUNNING);
1770 wakeup_reason = reason;
1771 qemu_notify_event();
1772 }
1773
1774 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1775 {
1776 if (enabled) {
1777 wakeup_reason_mask |= (1 << reason);
1778 } else {
1779 wakeup_reason_mask &= ~(1 << reason);
1780 }
1781 }
1782
1783 void qemu_register_wakeup_notifier(Notifier *notifier)
1784 {
1785 notifier_list_add(&wakeup_notifiers, notifier);
1786 }
1787
1788 void qemu_register_wakeup_support(void)
1789 {
1790 wakeup_suspend_enabled = true;
1791 }
1792
1793 bool qemu_wakeup_suspend_enabled(void)
1794 {
1795 return wakeup_suspend_enabled;
1796 }
1797
1798 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1799 {
1800 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1801 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1802
1803 return params;
1804 }
1805
1806 void qemu_system_killed(int signal, pid_t pid)
1807 {
1808 shutdown_signal = signal;
1809 shutdown_pid = pid;
1810 no_shutdown = 0;
1811
1812 /* Cannot call qemu_system_shutdown_request directly because
1813 * we are in a signal handler.
1814 */
1815 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1816 qemu_notify_event();
1817 }
1818
1819 void qemu_system_shutdown_request(ShutdownCause reason)
1820 {
1821 trace_qemu_system_shutdown_request(reason);
1822 replay_shutdown_request(reason);
1823 shutdown_requested = reason;
1824 qemu_notify_event();
1825 }
1826
1827 static void qemu_system_powerdown(void)
1828 {
1829 qapi_event_send_powerdown();
1830 notifier_list_notify(&powerdown_notifiers, NULL);
1831 }
1832
1833 static void qemu_system_shutdown(ShutdownCause cause)
1834 {
1835 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1836 notifier_list_notify(&shutdown_notifiers, &cause);
1837 }
1838
1839 void qemu_system_powerdown_request(void)
1840 {
1841 trace_qemu_system_powerdown_request();
1842 powerdown_requested = 1;
1843 qemu_notify_event();
1844 }
1845
1846 void qemu_register_powerdown_notifier(Notifier *notifier)
1847 {
1848 notifier_list_add(&powerdown_notifiers, notifier);
1849 }
1850
1851 void qemu_register_shutdown_notifier(Notifier *notifier)
1852 {
1853 notifier_list_add(&shutdown_notifiers, notifier);
1854 }
1855
1856 void qemu_system_debug_request(void)
1857 {
1858 debug_requested = 1;
1859 qemu_notify_event();
1860 }
1861
1862 static bool main_loop_should_exit(void)
1863 {
1864 RunState r;
1865 ShutdownCause request;
1866
1867 if (preconfig_exit_requested) {
1868 if (runstate_check(RUN_STATE_PRECONFIG)) {
1869 runstate_set(RUN_STATE_PRELAUNCH);
1870 }
1871 preconfig_exit_requested = false;
1872 return true;
1873 }
1874 if (qemu_debug_requested()) {
1875 vm_stop(RUN_STATE_DEBUG);
1876 }
1877 if (qemu_suspend_requested()) {
1878 qemu_system_suspend();
1879 }
1880 request = qemu_shutdown_requested();
1881 if (request) {
1882 qemu_kill_report();
1883 qemu_system_shutdown(request);
1884 if (no_shutdown) {
1885 vm_stop(RUN_STATE_SHUTDOWN);
1886 } else {
1887 return true;
1888 }
1889 }
1890 request = qemu_reset_requested();
1891 if (request) {
1892 pause_all_vcpus();
1893 qemu_system_reset(request);
1894 resume_all_vcpus();
1895 if (!runstate_check(RUN_STATE_RUNNING) &&
1896 !runstate_check(RUN_STATE_INMIGRATE)) {
1897 runstate_set(RUN_STATE_PRELAUNCH);
1898 }
1899 }
1900 if (qemu_wakeup_requested()) {
1901 pause_all_vcpus();
1902 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1903 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1904 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1905 resume_all_vcpus();
1906 qapi_event_send_wakeup();
1907 }
1908 if (qemu_powerdown_requested()) {
1909 qemu_system_powerdown();
1910 }
1911 if (qemu_vmstop_requested(&r)) {
1912 vm_stop(r);
1913 }
1914 return false;
1915 }
1916
1917 static void main_loop(void)
1918 {
1919 #ifdef CONFIG_PROFILER
1920 int64_t ti;
1921 #endif
1922 while (!main_loop_should_exit()) {
1923 #ifdef CONFIG_PROFILER
1924 ti = profile_getclock();
1925 #endif
1926 main_loop_wait(false);
1927 #ifdef CONFIG_PROFILER
1928 dev_time += profile_getclock() - ti;
1929 #endif
1930 }
1931 }
1932
1933 static void version(void)
1934 {
1935 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1936 QEMU_COPYRIGHT "\n");
1937 }
1938
1939 static void help(int exitcode)
1940 {
1941 version();
1942 printf("usage: %s [options] [disk_image]\n\n"
1943 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1944 error_get_progname());
1945
1946 #define QEMU_OPTIONS_GENERATE_HELP
1947 #include "qemu-options-wrapper.h"
1948
1949 printf("\nDuring emulation, the following keys are useful:\n"
1950 "ctrl-alt-f toggle full screen\n"
1951 "ctrl-alt-n switch to virtual console 'n'\n"
1952 "ctrl-alt toggle mouse and keyboard grab\n"
1953 "\n"
1954 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1955 "\n"
1956 QEMU_HELP_BOTTOM "\n");
1957
1958 exit(exitcode);
1959 }
1960
1961 #define HAS_ARG 0x0001
1962
1963 typedef struct QEMUOption {
1964 const char *name;
1965 int flags;
1966 int index;
1967 uint32_t arch_mask;
1968 } QEMUOption;
1969
1970 static const QEMUOption qemu_options[] = {
1971 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1972 #define QEMU_OPTIONS_GENERATE_OPTIONS
1973 #include "qemu-options-wrapper.h"
1974 { NULL },
1975 };
1976
1977 typedef struct VGAInterfaceInfo {
1978 const char *opt_name; /* option name */
1979 const char *name; /* human-readable name */
1980 /* Class names indicating that support is available.
1981 * If no class is specified, the interface is always available */
1982 const char *class_names[2];
1983 } VGAInterfaceInfo;
1984
1985 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1986 [VGA_NONE] = {
1987 .opt_name = "none",
1988 },
1989 [VGA_STD] = {
1990 .opt_name = "std",
1991 .name = "standard VGA",
1992 .class_names = { "VGA", "isa-vga" },
1993 },
1994 [VGA_CIRRUS] = {
1995 .opt_name = "cirrus",
1996 .name = "Cirrus VGA",
1997 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1998 },
1999 [VGA_VMWARE] = {
2000 .opt_name = "vmware",
2001 .name = "VMWare SVGA",
2002 .class_names = { "vmware-svga" },
2003 },
2004 [VGA_VIRTIO] = {
2005 .opt_name = "virtio",
2006 .name = "Virtio VGA",
2007 .class_names = { "virtio-vga" },
2008 },
2009 [VGA_QXL] = {
2010 .opt_name = "qxl",
2011 .name = "QXL VGA",
2012 .class_names = { "qxl-vga" },
2013 },
2014 [VGA_TCX] = {
2015 .opt_name = "tcx",
2016 .name = "TCX framebuffer",
2017 .class_names = { "SUNW,tcx" },
2018 },
2019 [VGA_CG3] = {
2020 .opt_name = "cg3",
2021 .name = "CG3 framebuffer",
2022 .class_names = { "cgthree" },
2023 },
2024 [VGA_XENFB] = {
2025 .opt_name = "xenfb",
2026 },
2027 };
2028
2029 static bool vga_interface_available(VGAInterfaceType t)
2030 {
2031 VGAInterfaceInfo *ti = &vga_interfaces[t];
2032
2033 assert(t < VGA_TYPE_MAX);
2034 return !ti->class_names[0] ||
2035 object_class_by_name(ti->class_names[0]) ||
2036 object_class_by_name(ti->class_names[1]);
2037 }
2038
2039 static void select_vgahw(const char *p)
2040 {
2041 const char *opts;
2042 int t;
2043
2044 assert(vga_interface_type == VGA_NONE);
2045 for (t = 0; t < VGA_TYPE_MAX; t++) {
2046 VGAInterfaceInfo *ti = &vga_interfaces[t];
2047 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2048 if (!vga_interface_available(t)) {
2049 error_report("%s not available", ti->name);
2050 exit(1);
2051 }
2052 vga_interface_type = t;
2053 break;
2054 }
2055 }
2056 if (t == VGA_TYPE_MAX) {
2057 invalid_vga:
2058 error_report("unknown vga type: %s", p);
2059 exit(1);
2060 }
2061 while (*opts) {
2062 const char *nextopt;
2063
2064 if (strstart(opts, ",retrace=", &nextopt)) {
2065 opts = nextopt;
2066 if (strstart(opts, "dumb", &nextopt))
2067 vga_retrace_method = VGA_RETRACE_DUMB;
2068 else if (strstart(opts, "precise", &nextopt))
2069 vga_retrace_method = VGA_RETRACE_PRECISE;
2070 else goto invalid_vga;
2071 } else goto invalid_vga;
2072 opts = nextopt;
2073 }
2074 }
2075
2076 static void parse_display_qapi(const char *optarg)
2077 {
2078 DisplayOptions *opts;
2079 Visitor *v;
2080
2081 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2082
2083 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2084 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2085
2086 qapi_free_DisplayOptions(opts);
2087 visit_free(v);
2088 }
2089
2090 DisplayOptions *qmp_query_display_options(Error **errp)
2091 {
2092 return QAPI_CLONE(DisplayOptions, &dpy);
2093 }
2094
2095 static void parse_display(const char *p)
2096 {
2097 const char *opts;
2098
2099 if (strstart(p, "sdl", &opts)) {
2100 /*
2101 * sdl DisplayType needs hand-crafted parser instead of
2102 * parse_display_qapi() due to some options not in
2103 * DisplayOptions, specifically:
2104 * - frame
2105 * Already deprecated.
2106 * - ctrl_grab + alt_grab
2107 * Not clear yet what happens to them long-term. Should
2108 * replaced by something better or deprecated and dropped.
2109 */
2110 dpy.type = DISPLAY_TYPE_SDL;
2111 while (*opts) {
2112 const char *nextopt;
2113
2114 if (strstart(opts, ",frame=", &nextopt)) {
2115 g_printerr("The frame= sdl option is deprecated, and will be\n"
2116 "removed in a future release.\n");
2117 opts = nextopt;
2118 if (strstart(opts, "on", &nextopt)) {
2119 no_frame = 0;
2120 } else if (strstart(opts, "off", &nextopt)) {
2121 no_frame = 1;
2122 } else {
2123 goto invalid_sdl_args;
2124 }
2125 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2126 opts = nextopt;
2127 if (strstart(opts, "on", &nextopt)) {
2128 alt_grab = 1;
2129 } else if (strstart(opts, "off", &nextopt)) {
2130 alt_grab = 0;
2131 } else {
2132 goto invalid_sdl_args;
2133 }
2134 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2135 opts = nextopt;
2136 if (strstart(opts, "on", &nextopt)) {
2137 ctrl_grab = 1;
2138 } else if (strstart(opts, "off", &nextopt)) {
2139 ctrl_grab = 0;
2140 } else {
2141 goto invalid_sdl_args;
2142 }
2143 } else if (strstart(opts, ",window_close=", &nextopt)) {
2144 opts = nextopt;
2145 dpy.has_window_close = true;
2146 if (strstart(opts, "on", &nextopt)) {
2147 dpy.window_close = true;
2148 } else if (strstart(opts, "off", &nextopt)) {
2149 dpy.window_close = false;
2150 } else {
2151 goto invalid_sdl_args;
2152 }
2153 } else if (strstart(opts, ",gl=", &nextopt)) {
2154 opts = nextopt;
2155 dpy.has_gl = true;
2156 if (strstart(opts, "on", &nextopt)) {
2157 dpy.gl = DISPLAYGL_MODE_ON;
2158 } else if (strstart(opts, "core", &nextopt)) {
2159 dpy.gl = DISPLAYGL_MODE_CORE;
2160 } else if (strstart(opts, "es", &nextopt)) {
2161 dpy.gl = DISPLAYGL_MODE_ES;
2162 } else if (strstart(opts, "off", &nextopt)) {
2163 dpy.gl = DISPLAYGL_MODE_OFF;
2164 } else {
2165 goto invalid_sdl_args;
2166 }
2167 } else {
2168 invalid_sdl_args:
2169 error_report("invalid SDL option string");
2170 exit(1);
2171 }
2172 opts = nextopt;
2173 }
2174 } else if (strstart(p, "vnc", &opts)) {
2175 /*
2176 * vnc isn't a (local) DisplayType but a protocol for remote
2177 * display access.
2178 */
2179 if (*opts == '=') {
2180 vnc_parse(opts + 1, &error_fatal);
2181 } else {
2182 error_report("VNC requires a display argument vnc=<display>");
2183 exit(1);
2184 }
2185 } else {
2186 parse_display_qapi(p);
2187 }
2188 }
2189
2190 char *qemu_find_file(int type, const char *name)
2191 {
2192 int i;
2193 const char *subdir;
2194 char *buf;
2195
2196 /* Try the name as a straight path first */
2197 if (access(name, R_OK) == 0) {
2198 trace_load_file(name, name);
2199 return g_strdup(name);
2200 }
2201
2202 switch (type) {
2203 case QEMU_FILE_TYPE_BIOS:
2204 subdir = "";
2205 break;
2206 case QEMU_FILE_TYPE_KEYMAP:
2207 subdir = "keymaps/";
2208 break;
2209 default:
2210 abort();
2211 }
2212
2213 for (i = 0; i < data_dir_idx; i++) {
2214 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2215 if (access(buf, R_OK) == 0) {
2216 trace_load_file(name, buf);
2217 return buf;
2218 }
2219 g_free(buf);
2220 }
2221 return NULL;
2222 }
2223
2224 static void qemu_add_data_dir(const char *path)
2225 {
2226 int i;
2227
2228 if (path == NULL) {
2229 return;
2230 }
2231 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2232 return;
2233 }
2234 for (i = 0; i < data_dir_idx; i++) {
2235 if (strcmp(data_dir[i], path) == 0) {
2236 return; /* duplicate */
2237 }
2238 }
2239 data_dir[data_dir_idx++] = g_strdup(path);
2240 }
2241
2242 static inline bool nonempty_str(const char *str)
2243 {
2244 return str && *str;
2245 }
2246
2247 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2248 {
2249 gchar *buf;
2250 size_t size;
2251 const char *name, *file, *str;
2252 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2253
2254 if (fw_cfg == NULL) {
2255 error_setg(errp, "fw_cfg device not available");
2256 return -1;
2257 }
2258 name = qemu_opt_get(opts, "name");
2259 file = qemu_opt_get(opts, "file");
2260 str = qemu_opt_get(opts, "string");
2261
2262 /* we need name and either a file or the content string */
2263 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2264 error_setg(errp, "invalid argument(s)");
2265 return -1;
2266 }
2267 if (nonempty_str(file) && nonempty_str(str)) {
2268 error_setg(errp, "file and string are mutually exclusive");
2269 return -1;
2270 }
2271 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2272 error_setg(errp, "name too long (max. %d char)",
2273 FW_CFG_MAX_FILE_PATH - 1);
2274 return -1;
2275 }
2276 if (strncmp(name, "opt/", 4) != 0) {
2277 warn_report("externally provided fw_cfg item names "
2278 "should be prefixed with \"opt/\"");
2279 }
2280 if (nonempty_str(str)) {
2281 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2282 buf = g_memdup(str, size);
2283 } else {
2284 GError *err = NULL;
2285 if (!g_file_get_contents(file, &buf, &size, &err)) {
2286 error_setg(errp, "can't load %s: %s", file, err->message);
2287 g_error_free(err);
2288 return -1;
2289 }
2290 }
2291 /* For legacy, keep user files in a specific global order. */
2292 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2293 fw_cfg_add_file(fw_cfg, name, buf, size);
2294 fw_cfg_reset_order_override(fw_cfg);
2295 return 0;
2296 }
2297
2298 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2299 {
2300 return qdev_device_help(opts);
2301 }
2302
2303 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2304 {
2305 DeviceState *dev;
2306
2307 dev = qdev_device_add(opts, errp);
2308 if (!dev) {
2309 return -1;
2310 }
2311 object_unref(OBJECT(dev));
2312 return 0;
2313 }
2314
2315 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2316 {
2317 Error *local_err = NULL;
2318
2319 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2320 if (local_err) {
2321 error_propagate(errp, local_err);
2322 return -1;
2323 }
2324 exit(0);
2325 }
2326 return 0;
2327 }
2328
2329 #ifdef CONFIG_VIRTFS
2330 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2331 {
2332 return qemu_fsdev_add(opts, errp);
2333 }
2334 #endif
2335
2336 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2337 {
2338 Chardev *chr;
2339 const char *chardev;
2340 const char *mode;
2341 int flags;
2342
2343 mode = qemu_opt_get(opts, "mode");
2344 if (mode == NULL) {
2345 mode = "readline";
2346 }
2347 if (strcmp(mode, "readline") == 0) {
2348 flags = MONITOR_USE_READLINE;
2349 } else if (strcmp(mode, "control") == 0) {
2350 flags = MONITOR_USE_CONTROL;
2351 } else {
2352 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2353 return -1;
2354 }
2355
2356 if (qemu_opt_get_bool(opts, "pretty", 0))
2357 flags |= MONITOR_USE_PRETTY;
2358
2359 chardev = qemu_opt_get(opts, "chardev");
2360 if (!chardev) {
2361 error_report("chardev is required");
2362 exit(1);
2363 }
2364 chr = qemu_chr_find(chardev);
2365 if (chr == NULL) {
2366 error_setg(errp, "chardev \"%s\" not found", chardev);
2367 return -1;
2368 }
2369
2370 monitor_init(chr, flags);
2371 return 0;
2372 }
2373
2374 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2375 {
2376 static int monitor_device_index = 0;
2377 QemuOpts *opts;
2378 const char *p;
2379 char label[32];
2380
2381 if (strstart(optarg, "chardev:", &p)) {
2382 snprintf(label, sizeof(label), "%s", p);
2383 } else {
2384 snprintf(label, sizeof(label), "compat_monitor%d",
2385 monitor_device_index);
2386 opts = qemu_chr_parse_compat(label, optarg, true);
2387 if (!opts) {
2388 error_report("parse error: %s", optarg);
2389 exit(1);
2390 }
2391 }
2392
2393 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2394 qemu_opt_set(opts, "mode", mode, &error_abort);
2395 qemu_opt_set(opts, "chardev", label, &error_abort);
2396 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2397 monitor_device_index++;
2398 }
2399
2400 struct device_config {
2401 enum {
2402 DEV_USB, /* -usbdevice */
2403 DEV_BT, /* -bt */
2404 DEV_SERIAL, /* -serial */
2405 DEV_PARALLEL, /* -parallel */
2406 DEV_VIRTCON, /* -virtioconsole */
2407 DEV_DEBUGCON, /* -debugcon */
2408 DEV_GDB, /* -gdb, -s */
2409 DEV_SCLP, /* s390 sclp */
2410 } type;
2411 const char *cmdline;
2412 Location loc;
2413 QTAILQ_ENTRY(device_config) next;
2414 };
2415
2416 static QTAILQ_HEAD(, device_config) device_configs =
2417 QTAILQ_HEAD_INITIALIZER(device_configs);
2418
2419 static void add_device_config(int type, const char *cmdline)
2420 {
2421 struct device_config *conf;
2422
2423 conf = g_malloc0(sizeof(*conf));
2424 conf->type = type;
2425 conf->cmdline = cmdline;
2426 loc_save(&conf->loc);
2427 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2428 }
2429
2430 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2431 {
2432 struct device_config *conf;
2433 int rc;
2434
2435 QTAILQ_FOREACH(conf, &device_configs, next) {
2436 if (conf->type != type)
2437 continue;
2438 loc_push_restore(&conf->loc);
2439 rc = func(conf->cmdline);
2440 loc_pop(&conf->loc);
2441 if (rc) {
2442 return rc;
2443 }
2444 }
2445 return 0;
2446 }
2447
2448 static int serial_parse(const char *devname)
2449 {
2450 int index = num_serial_hds;
2451 char label[32];
2452
2453 if (strcmp(devname, "none") == 0)
2454 return 0;
2455 snprintf(label, sizeof(label), "serial%d", index);
2456 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2457
2458 serial_hds[index] = qemu_chr_new_mux_mon(label, devname);
2459 if (!serial_hds[index]) {
2460 error_report("could not connect serial device"
2461 " to character backend '%s'", devname);
2462 return -1;
2463 }
2464 num_serial_hds++;
2465 return 0;
2466 }
2467
2468 Chardev *serial_hd(int i)
2469 {
2470 assert(i >= 0);
2471 if (i < num_serial_hds) {
2472 return serial_hds[i];
2473 }
2474 return NULL;
2475 }
2476
2477 int serial_max_hds(void)
2478 {
2479 return num_serial_hds;
2480 }
2481
2482 static int parallel_parse(const char *devname)
2483 {
2484 static int index = 0;
2485 char label[32];
2486
2487 if (strcmp(devname, "none") == 0)
2488 return 0;
2489 if (index == MAX_PARALLEL_PORTS) {
2490 error_report("too many parallel ports");
2491 exit(1);
2492 }
2493 snprintf(label, sizeof(label), "parallel%d", index);
2494 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname);
2495 if (!parallel_hds[index]) {
2496 error_report("could not connect parallel device"
2497 " to character backend '%s'", devname);
2498 return -1;
2499 }
2500 index++;
2501 return 0;
2502 }
2503
2504 static int virtcon_parse(const char *devname)
2505 {
2506 QemuOptsList *device = qemu_find_opts("device");
2507 static int index = 0;
2508 char label[32];
2509 QemuOpts *bus_opts, *dev_opts;
2510
2511 if (strcmp(devname, "none") == 0)
2512 return 0;
2513 if (index == MAX_VIRTIO_CONSOLES) {
2514 error_report("too many virtio consoles");
2515 exit(1);
2516 }
2517
2518 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2519 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2520
2521 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2522 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2523
2524 snprintf(label, sizeof(label), "virtcon%d", index);
2525 virtcon_hds[index] = qemu_chr_new_mux_mon(label, devname);
2526 if (!virtcon_hds[index]) {
2527 error_report("could not connect virtio console"
2528 " to character backend '%s'", devname);
2529 return -1;
2530 }
2531 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2532
2533 index++;
2534 return 0;
2535 }
2536
2537 static int debugcon_parse(const char *devname)
2538 {
2539 QemuOpts *opts;
2540
2541 if (!qemu_chr_new_mux_mon("debugcon", devname)) {
2542 error_report("invalid character backend '%s'", devname);
2543 exit(1);
2544 }
2545 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2546 if (!opts) {
2547 error_report("already have a debugcon device");
2548 exit(1);
2549 }
2550 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2551 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2552 return 0;
2553 }
2554
2555 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2556 {
2557 const MachineClass *mc1 = a, *mc2 = b;
2558 int res;
2559
2560 if (mc1->family == NULL) {
2561 if (mc2->family == NULL) {
2562 /* Compare standalone machine types against each other; they sort
2563 * in increasing order.
2564 */
2565 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2566 object_class_get_name(OBJECT_CLASS(mc2)));
2567 }
2568
2569 /* Standalone machine types sort after families. */
2570 return 1;
2571 }
2572
2573 if (mc2->family == NULL) {
2574 /* Families sort before standalone machine types. */
2575 return -1;
2576 }
2577
2578 /* Families sort between each other alphabetically increasingly. */
2579 res = strcmp(mc1->family, mc2->family);
2580 if (res != 0) {
2581 return res;
2582 }
2583
2584 /* Within the same family, machine types sort in decreasing order. */
2585 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2586 object_class_get_name(OBJECT_CLASS(mc1)));
2587 }
2588
2589 static MachineClass *machine_parse(const char *name)
2590 {
2591 MachineClass *mc = NULL;
2592 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2593
2594 if (name) {
2595 mc = find_machine(name);
2596 }
2597 if (mc) {
2598 g_slist_free(machines);
2599 return mc;
2600 }
2601 if (name && !is_help_option(name)) {
2602 error_report("unsupported machine type");
2603 error_printf("Use -machine help to list supported machines\n");
2604 } else {
2605 printf("Supported machines are:\n");
2606 machines = g_slist_sort(machines, machine_class_cmp);
2607 for (el = machines; el; el = el->next) {
2608 MachineClass *mc = el->data;
2609 if (mc->alias) {
2610 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2611 }
2612 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2613 mc->is_default ? " (default)" : "",
2614 mc->deprecation_reason ? " (deprecated)" : "");
2615 }
2616 }
2617
2618 g_slist_free(machines);
2619 exit(!name || !is_help_option(name));
2620 }
2621
2622 void qemu_add_exit_notifier(Notifier *notify)
2623 {
2624 notifier_list_add(&exit_notifiers, notify);
2625 }
2626
2627 void qemu_remove_exit_notifier(Notifier *notify)
2628 {
2629 notifier_remove(notify);
2630 }
2631
2632 static void qemu_run_exit_notifiers(void)
2633 {
2634 notifier_list_notify(&exit_notifiers, NULL);
2635 }
2636
2637 static const char *pid_file;
2638 static Notifier qemu_unlink_pidfile_notifier;
2639
2640 static void qemu_unlink_pidfile(Notifier *n, void *data)
2641 {
2642 if (pid_file) {
2643 unlink(pid_file);
2644 }
2645 }
2646
2647 bool machine_init_done;
2648
2649 void qemu_add_machine_init_done_notifier(Notifier *notify)
2650 {
2651 notifier_list_add(&machine_init_done_notifiers, notify);
2652 if (machine_init_done) {
2653 notify->notify(notify, NULL);
2654 }
2655 }
2656
2657 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2658 {
2659 notifier_remove(notify);
2660 }
2661
2662 static void qemu_run_machine_init_done_notifiers(void)
2663 {
2664 machine_init_done = true;
2665 notifier_list_notify(&machine_init_done_notifiers, NULL);
2666 }
2667
2668 static const QEMUOption *lookup_opt(int argc, char **argv,
2669 const char **poptarg, int *poptind)
2670 {
2671 const QEMUOption *popt;
2672 int optind = *poptind;
2673 char *r = argv[optind];
2674 const char *optarg;
2675
2676 loc_set_cmdline(argv, optind, 1);
2677 optind++;
2678 /* Treat --foo the same as -foo. */
2679 if (r[1] == '-')
2680 r++;
2681 popt = qemu_options;
2682 for(;;) {
2683 if (!popt->name) {
2684 error_report("invalid option");
2685 exit(1);
2686 }
2687 if (!strcmp(popt->name, r + 1))
2688 break;
2689 popt++;
2690 }
2691 if (popt->flags & HAS_ARG) {
2692 if (optind >= argc) {
2693 error_report("requires an argument");
2694 exit(1);
2695 }
2696 optarg = argv[optind++];
2697 loc_set_cmdline(argv, optind - 2, 2);
2698 } else {
2699 optarg = NULL;
2700 }
2701
2702 *poptarg = optarg;
2703 *poptind = optind;
2704
2705 return popt;
2706 }
2707
2708 static MachineClass *select_machine(void)
2709 {
2710 MachineClass *machine_class = find_default_machine();
2711 const char *optarg;
2712 QemuOpts *opts;
2713 Location loc;
2714
2715 loc_push_none(&loc);
2716
2717 opts = qemu_get_machine_opts();
2718 qemu_opts_loc_restore(opts);
2719
2720 optarg = qemu_opt_get(opts, "type");
2721 if (optarg) {
2722 machine_class = machine_parse(optarg);
2723 }
2724
2725 if (!machine_class) {
2726 error_report("No machine specified, and there is no default");
2727 error_printf("Use -machine help to list supported machines\n");
2728 exit(1);
2729 }
2730
2731 loc_pop(&loc);
2732 return machine_class;
2733 }
2734
2735 static int machine_set_property(void *opaque,
2736 const char *name, const char *value,
2737 Error **errp)
2738 {
2739 Object *obj = OBJECT(opaque);
2740 Error *local_err = NULL;
2741 char *p, *qom_name;
2742
2743 if (strcmp(name, "type") == 0) {
2744 return 0;
2745 }
2746
2747 qom_name = g_strdup(name);
2748 for (p = qom_name; *p; p++) {
2749 if (*p == '_') {
2750 *p = '-';
2751 }
2752 }
2753
2754 object_property_parse(obj, value, qom_name, &local_err);
2755 g_free(qom_name);
2756
2757 if (local_err) {
2758 error_propagate(errp, local_err);
2759 return -1;
2760 }
2761
2762 return 0;
2763 }
2764
2765
2766 /*
2767 * Initial object creation happens before all other
2768 * QEMU data types are created. The majority of objects
2769 * can be created at this point. The rng-egd object
2770 * cannot be created here, as it depends on the chardev
2771 * already existing.
2772 */
2773 static bool object_create_initial(const char *type, QemuOpts *opts)
2774 {
2775 ObjectClass *klass;
2776
2777 if (is_help_option(type)) {
2778 GSList *l, *list;
2779
2780 printf("List of user creatable objects:\n");
2781 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2782 for (l = list; l != NULL; l = l->next) {
2783 ObjectClass *oc = OBJECT_CLASS(l->data);
2784 printf(" %s\n", object_class_get_name(oc));
2785 }
2786 g_slist_free(list);
2787 exit(0);
2788 }
2789
2790 klass = object_class_by_name(type);
2791 if (klass && qemu_opt_has_help_opt(opts)) {
2792 ObjectPropertyIterator iter;
2793 ObjectProperty *prop;
2794 GPtrArray *array = g_ptr_array_new();
2795 int i;
2796
2797 object_class_property_iter_init(&iter, klass);
2798 while ((prop = object_property_iter_next(&iter))) {
2799 GString *str;
2800
2801 if (!prop->set) {
2802 continue;
2803 }
2804
2805 str = g_string_new(NULL);
2806 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2807 if (prop->description) {
2808 if (str->len < 24) {
2809 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2810 }
2811 g_string_append_printf(str, " - %s", prop->description);
2812 }
2813 g_ptr_array_add(array, g_string_free(str, false));
2814 }
2815 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2816 if (array->len > 0) {
2817 printf("%s options:\n", type);
2818 } else {
2819 printf("There are no options for %s.\n", type);
2820 }
2821 for (i = 0; i < array->len; i++) {
2822 printf("%s\n", (char *)array->pdata[i]);
2823 }
2824 g_ptr_array_set_free_func(array, g_free);
2825 g_ptr_array_free(array, true);
2826 exit(0);
2827 }
2828
2829 if (g_str_equal(type, "rng-egd") ||
2830 g_str_has_prefix(type, "pr-manager-")) {
2831 return false;
2832 }
2833
2834 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2835 if (g_str_equal(type, "cryptodev-vhost-user")) {
2836 return false;
2837 }
2838 #endif
2839
2840 /*
2841 * return false for concrete netfilters since
2842 * they depend on netdevs already existing
2843 */
2844 if (g_str_equal(type, "filter-buffer") ||
2845 g_str_equal(type, "filter-dump") ||
2846 g_str_equal(type, "filter-mirror") ||
2847 g_str_equal(type, "filter-redirector") ||
2848 g_str_equal(type, "colo-compare") ||
2849 g_str_equal(type, "filter-rewriter") ||
2850 g_str_equal(type, "filter-replay")) {
2851 return false;
2852 }
2853
2854 /* Memory allocation by backends needs to be done
2855 * after configure_accelerator() (due to the tcg_enabled()
2856 * checks at memory_region_init_*()).
2857 *
2858 * Also, allocation of large amounts of memory may delay
2859 * chardev initialization for too long, and trigger timeouts
2860 * on software that waits for a monitor socket to be created
2861 * (e.g. libvirt).
2862 */
2863 if (g_str_has_prefix(type, "memory-backend-")) {
2864 return false;
2865 }
2866
2867 return true;
2868 }
2869
2870
2871 /*
2872 * The remainder of object creation happens after the
2873 * creation of chardev, fsdev, net clients and device data types.
2874 */
2875 static bool object_create_delayed(const char *type, QemuOpts *opts)
2876 {
2877 return !object_create_initial(type, opts);
2878 }
2879
2880
2881 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2882 MachineClass *mc)
2883 {
2884 uint64_t sz;
2885 const char *mem_str;
2886 const ram_addr_t default_ram_size = mc->default_ram_size;
2887 QemuOpts *opts = qemu_find_opts_singleton("memory");
2888 Location loc;
2889
2890 loc_push_none(&loc);
2891 qemu_opts_loc_restore(opts);
2892
2893 sz = 0;
2894 mem_str = qemu_opt_get(opts, "size");
2895 if (mem_str) {
2896 if (!*mem_str) {
2897 error_report("missing 'size' option value");
2898 exit(EXIT_FAILURE);
2899 }
2900
2901 sz = qemu_opt_get_size(opts, "size", ram_size);
2902
2903 /* Fix up legacy suffix-less format */
2904 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2905 uint64_t overflow_check = sz;
2906
2907 sz *= MiB;
2908 if (sz / MiB != overflow_check) {
2909 error_report("too large 'size' option value");
2910 exit(EXIT_FAILURE);
2911 }
2912 }
2913 }
2914
2915 /* backward compatibility behaviour for case "-m 0" */
2916 if (sz == 0) {
2917 sz = default_ram_size;
2918 }
2919
2920 sz = QEMU_ALIGN_UP(sz, 8192);
2921 ram_size = sz;
2922 if (ram_size != sz) {
2923 error_report("ram size too large");
2924 exit(EXIT_FAILURE);
2925 }
2926
2927 /* store value for the future use */
2928 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2929 *maxram_size = ram_size;
2930
2931 if (qemu_opt_get(opts, "maxmem")) {
2932 uint64_t slots;
2933
2934 sz = qemu_opt_get_size(opts, "maxmem", 0);
2935 slots = qemu_opt_get_number(opts, "slots", 0);
2936 if (sz < ram_size) {
2937 error_report("invalid value of -m option maxmem: "
2938 "maximum memory size (0x%" PRIx64 ") must be at least "
2939 "the initial memory size (0x" RAM_ADDR_FMT ")",
2940 sz, ram_size);
2941 exit(EXIT_FAILURE);
2942 } else if (slots && sz == ram_size) {
2943 error_report("invalid value of -m option maxmem: "
2944 "memory slots were specified but maximum memory size "
2945 "(0x%" PRIx64 ") is equal to the initial memory size "
2946 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2947 exit(EXIT_FAILURE);
2948 }
2949
2950 *maxram_size = sz;
2951 *ram_slots = slots;
2952 } else if (qemu_opt_get(opts, "slots")) {
2953 error_report("invalid -m option value: missing 'maxmem' option");
2954 exit(EXIT_FAILURE);
2955 }
2956
2957 loc_pop(&loc);
2958 }
2959
2960 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2961 {
2962 GlobalProperty *g;
2963
2964 g = g_malloc0(sizeof(*g));
2965 g->driver = qemu_opt_get(opts, "driver");
2966 g->property = qemu_opt_get(opts, "property");
2967 g->value = qemu_opt_get(opts, "value");
2968 g->user_provided = true;
2969 g->errp = &error_fatal;
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 accel_register_compat_props(ms->accelerator);
3001 machine_register_compat_props(ms);
3002 user_register_global_props();
3003 }
3004
3005 int main(int argc, char **argv, char **envp)
3006 {
3007 int i;
3008 int snapshot, linux_boot;
3009 const char *initrd_filename;
3010 const char *kernel_filename, *kernel_cmdline;
3011 const char *boot_order = NULL;
3012 const char *boot_once = NULL;
3013 DisplayState *ds;
3014 QemuOpts *opts, *machine_opts;
3015 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3016 QemuOptsList *olist;
3017 int optind;
3018 const char *optarg;
3019 const char *loadvm = NULL;
3020 MachineClass *machine_class;
3021 const char *cpu_model;
3022 const char *vga_model = NULL;
3023 const char *qtest_chrdev = NULL;
3024 const char *qtest_log = NULL;
3025 const char *incoming = NULL;
3026 bool userconfig = true;
3027 bool nographic = false;
3028 int display_remote = 0;
3029 const char *log_mask = NULL;
3030 const char *log_file = NULL;
3031 char *trace_file = NULL;
3032 ram_addr_t maxram_size;
3033 uint64_t ram_slots = 0;
3034 FILE *vmstate_dump_file = NULL;
3035 Error *main_loop_err = NULL;
3036 Error *err = NULL;
3037 bool list_data_dirs = false;
3038 char *dir, **dirs;
3039 typedef struct BlockdevOptions_queue {
3040 BlockdevOptions *bdo;
3041 Location loc;
3042 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3043 } BlockdevOptions_queue;
3044 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3045 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3046
3047 module_call_init(MODULE_INIT_TRACE);
3048
3049 qemu_init_cpu_list();
3050 qemu_init_cpu_loop();
3051
3052 qemu_mutex_lock_iothread();
3053
3054 atexit(qemu_run_exit_notifiers);
3055 error_set_progname(argv[0]);
3056 qemu_init_exec_dir(argv[0]);
3057
3058 module_call_init(MODULE_INIT_QOM);
3059
3060 qemu_add_opts(&qemu_drive_opts);
3061 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3062 qemu_add_drive_opts(&qemu_common_drive_opts);
3063 qemu_add_drive_opts(&qemu_drive_opts);
3064 qemu_add_drive_opts(&bdrv_runtime_opts);
3065 qemu_add_opts(&qemu_chardev_opts);
3066 qemu_add_opts(&qemu_device_opts);
3067 qemu_add_opts(&qemu_netdev_opts);
3068 qemu_add_opts(&qemu_nic_opts);
3069 qemu_add_opts(&qemu_net_opts);
3070 qemu_add_opts(&qemu_rtc_opts);
3071 qemu_add_opts(&qemu_global_opts);
3072 qemu_add_opts(&qemu_mon_opts);
3073 qemu_add_opts(&qemu_trace_opts);
3074 qemu_add_opts(&qemu_option_rom_opts);
3075 qemu_add_opts(&qemu_machine_opts);
3076 qemu_add_opts(&qemu_accel_opts);
3077 qemu_add_opts(&qemu_mem_opts);
3078 qemu_add_opts(&qemu_smp_opts);
3079 qemu_add_opts(&qemu_boot_opts);
3080 qemu_add_opts(&qemu_add_fd_opts);
3081 qemu_add_opts(&qemu_object_opts);
3082 qemu_add_opts(&qemu_tpmdev_opts);
3083 qemu_add_opts(&qemu_realtime_opts);
3084 qemu_add_opts(&qemu_overcommit_opts);
3085 qemu_add_opts(&qemu_msg_opts);
3086 qemu_add_opts(&qemu_name_opts);
3087 qemu_add_opts(&qemu_numa_opts);
3088 qemu_add_opts(&qemu_icount_opts);
3089 qemu_add_opts(&qemu_semihosting_config_opts);
3090 qemu_add_opts(&qemu_fw_cfg_opts);
3091 module_call_init(MODULE_INIT_OPTS);
3092
3093 runstate_init();
3094 postcopy_infrastructure_init();
3095 monitor_init_globals();
3096
3097 if (qcrypto_init(&err) < 0) {
3098 error_reportf_err(err, "cannot initialize crypto: ");
3099 exit(1);
3100 }
3101
3102 QLIST_INIT (&vm_change_state_head);
3103 os_setup_early_signal_handling();
3104
3105 cpu_model = NULL;
3106 snapshot = 0;
3107
3108 nb_nics = 0;
3109
3110 bdrv_init_with_whitelist();
3111
3112 autostart = 1;
3113
3114 /* first pass of option parsing */
3115 optind = 1;
3116 while (optind < argc) {
3117 if (argv[optind][0] != '-') {
3118 /* disk image */
3119 optind++;
3120 } else {
3121 const QEMUOption *popt;
3122
3123 popt = lookup_opt(argc, argv, &optarg, &optind);
3124 switch (popt->index) {
3125 case QEMU_OPTION_nouserconfig:
3126 userconfig = false;
3127 break;
3128 }
3129 }
3130 }
3131
3132 if (userconfig) {
3133 if (qemu_read_default_config_file() < 0) {
3134 exit(1);
3135 }
3136 }
3137
3138 /* second pass of option parsing */
3139 optind = 1;
3140 for(;;) {
3141 if (optind >= argc)
3142 break;
3143 if (argv[optind][0] != '-') {
3144 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3145 } else {
3146 const QEMUOption *popt;
3147
3148 popt = lookup_opt(argc, argv, &optarg, &optind);
3149 if (!(popt->arch_mask & arch_type)) {
3150 error_report("Option not supported for this target");
3151 exit(1);
3152 }
3153 switch(popt->index) {
3154 case QEMU_OPTION_cpu:
3155 /* hw initialization will check this */
3156 cpu_model = optarg;
3157 break;
3158 case QEMU_OPTION_hda:
3159 case QEMU_OPTION_hdb:
3160 case QEMU_OPTION_hdc:
3161 case QEMU_OPTION_hdd:
3162 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3163 HD_OPTS);
3164 break;
3165 case QEMU_OPTION_blockdev:
3166 {
3167 Visitor *v;
3168 BlockdevOptions_queue *bdo;
3169
3170 v = qobject_input_visitor_new_str(optarg, "driver",
3171 &error_fatal);
3172
3173 bdo = g_new(BlockdevOptions_queue, 1);
3174 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3175 &error_fatal);
3176 visit_free(v);
3177 loc_save(&bdo->loc);
3178 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3179 break;
3180 }
3181 case QEMU_OPTION_drive:
3182 if (drive_def(optarg) == NULL) {
3183 exit(1);
3184 }
3185 break;
3186 case QEMU_OPTION_set:
3187 if (qemu_set_option(optarg) != 0)
3188 exit(1);
3189 break;
3190 case QEMU_OPTION_global:
3191 if (qemu_global_option(optarg) != 0)
3192 exit(1);
3193 break;
3194 case QEMU_OPTION_mtdblock:
3195 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3196 break;
3197 case QEMU_OPTION_sd:
3198 drive_add(IF_SD, -1, optarg, SD_OPTS);
3199 break;
3200 case QEMU_OPTION_pflash:
3201 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3202 break;
3203 case QEMU_OPTION_snapshot:
3204 snapshot = 1;
3205 break;
3206 case QEMU_OPTION_numa:
3207 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3208 optarg, true);
3209 if (!opts) {
3210 exit(1);
3211 }
3212 break;
3213 case QEMU_OPTION_display:
3214 parse_display(optarg);
3215 break;
3216 case QEMU_OPTION_nographic:
3217 olist = qemu_find_opts("machine");
3218 qemu_opts_parse_noisily(olist, "graphics=off", false);
3219 nographic = true;
3220 dpy.type = DISPLAY_TYPE_NONE;
3221 break;
3222 case QEMU_OPTION_curses:
3223 #ifdef CONFIG_CURSES
3224 dpy.type = DISPLAY_TYPE_CURSES;
3225 #else
3226 error_report("curses support is disabled");
3227 exit(1);
3228 #endif
3229 break;
3230 case QEMU_OPTION_portrait:
3231 graphic_rotate = 90;
3232 break;
3233 case QEMU_OPTION_rotate:
3234 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3235 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3236 graphic_rotate != 180 && graphic_rotate != 270) {
3237 error_report("only 90, 180, 270 deg rotation is available");
3238 exit(1);
3239 }
3240 break;
3241 case QEMU_OPTION_kernel:
3242 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3243 &error_abort);
3244 break;
3245 case QEMU_OPTION_initrd:
3246 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3247 &error_abort);
3248 break;
3249 case QEMU_OPTION_append:
3250 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3251 &error_abort);
3252 break;
3253 case QEMU_OPTION_dtb:
3254 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3255 &error_abort);
3256 break;
3257 case QEMU_OPTION_cdrom:
3258 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3259 break;
3260 case QEMU_OPTION_boot:
3261 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3262 optarg, true);
3263 if (!opts) {
3264 exit(1);
3265 }
3266 break;
3267 case QEMU_OPTION_fda:
3268 case QEMU_OPTION_fdb:
3269 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3270 optarg, FD_OPTS);
3271 break;
3272 case QEMU_OPTION_no_fd_bootchk:
3273 fd_bootchk = 0;
3274 break;
3275 case QEMU_OPTION_netdev:
3276 default_net = 0;
3277 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3278 exit(1);
3279 }
3280 break;
3281 case QEMU_OPTION_nic:
3282 default_net = 0;
3283 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3284 exit(1);
3285 }
3286 break;
3287 case QEMU_OPTION_net:
3288 default_net = 0;
3289 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3290 exit(1);
3291 }
3292 break;
3293 #ifdef CONFIG_LIBISCSI
3294 case QEMU_OPTION_iscsi:
3295 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3296 optarg, false);
3297 if (!opts) {
3298 exit(1);
3299 }
3300 break;
3301 #endif
3302 case QEMU_OPTION_bt:
3303 warn_report("The bluetooth subsystem is deprecated and will "
3304 "be removed soon. If the bluetooth subsystem is "
3305 "still useful for you, please send a mail to "
3306 "qemu-devel@nongnu.org with your usecase.");
3307 add_device_config(DEV_BT, optarg);
3308 break;
3309 case QEMU_OPTION_audio_help:
3310 AUD_help ();
3311 exit (0);
3312 break;
3313 case QEMU_OPTION_soundhw:
3314 select_soundhw (optarg);
3315 break;
3316 case QEMU_OPTION_h:
3317 help(0);
3318 break;
3319 case QEMU_OPTION_version:
3320 version();
3321 exit(0);
3322 break;
3323 case QEMU_OPTION_m:
3324 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3325 optarg, true);
3326 if (!opts) {
3327 exit(EXIT_FAILURE);
3328 }
3329 break;
3330 #ifdef CONFIG_TPM
3331 case QEMU_OPTION_tpmdev:
3332 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3333 exit(1);
3334 }
3335 break;
3336 #endif
3337 case QEMU_OPTION_mempath:
3338 mem_path = optarg;
3339 break;
3340 case QEMU_OPTION_mem_prealloc:
3341 mem_prealloc = 1;
3342 break;
3343 case QEMU_OPTION_d:
3344 log_mask = optarg;
3345 break;
3346 case QEMU_OPTION_D:
3347 log_file = optarg;
3348 break;
3349 case QEMU_OPTION_DFILTER:
3350 qemu_set_dfilter_ranges(optarg, &error_fatal);
3351 break;
3352 case QEMU_OPTION_s:
3353 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3354 break;
3355 case QEMU_OPTION_gdb:
3356 add_device_config(DEV_GDB, optarg);
3357 break;
3358 case QEMU_OPTION_L:
3359 if (is_help_option(optarg)) {
3360 list_data_dirs = true;
3361 } else {
3362 qemu_add_data_dir(optarg);
3363 }
3364 break;
3365 case QEMU_OPTION_bios:
3366 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3367 &error_abort);
3368 break;
3369 case QEMU_OPTION_singlestep:
3370 singlestep = 1;
3371 break;
3372 case QEMU_OPTION_S:
3373 autostart = 0;
3374 break;
3375 case QEMU_OPTION_k:
3376 keyboard_layout = optarg;
3377 break;
3378 case QEMU_OPTION_vga:
3379 vga_model = optarg;
3380 default_vga = 0;
3381 break;
3382 case QEMU_OPTION_g:
3383 {
3384 const char *p;
3385 int w, h, depth;
3386 p = optarg;
3387 w = strtol(p, (char **)&p, 10);
3388 if (w <= 0) {
3389 graphic_error:
3390 error_report("invalid resolution or depth");
3391 exit(1);
3392 }
3393 if (*p != 'x')
3394 goto graphic_error;
3395 p++;
3396 h = strtol(p, (char **)&p, 10);
3397 if (h <= 0)
3398 goto graphic_error;
3399 if (*p == 'x') {
3400 p++;
3401 depth = strtol(p, (char **)&p, 10);
3402 if (depth != 8 && depth != 15 && depth != 16 &&
3403 depth != 24 && depth != 32)
3404 goto graphic_error;
3405 } else if (*p == '\0') {
3406 depth = graphic_depth;
3407 } else {
3408 goto graphic_error;
3409 }
3410
3411 graphic_width = w;
3412 graphic_height = h;
3413 graphic_depth = depth;
3414 }
3415 break;
3416 case QEMU_OPTION_echr:
3417 {
3418 char *r;
3419 term_escape_char = strtol(optarg, &r, 0);
3420 if (r == optarg)
3421 printf("Bad argument to echr\n");
3422 break;
3423 }
3424 case QEMU_OPTION_monitor:
3425 default_monitor = 0;
3426 if (strncmp(optarg, "none", 4)) {
3427 monitor_parse(optarg, "readline", false);
3428 }
3429 break;
3430 case QEMU_OPTION_qmp:
3431 monitor_parse(optarg, "control", false);
3432 default_monitor = 0;
3433 break;
3434 case QEMU_OPTION_qmp_pretty:
3435 monitor_parse(optarg, "control", true);
3436 default_monitor = 0;
3437 break;
3438 case QEMU_OPTION_mon:
3439 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3440 true);
3441 if (!opts) {
3442 exit(1);
3443 }
3444 default_monitor = 0;
3445 break;
3446 case QEMU_OPTION_chardev:
3447 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3448 optarg, true);
3449 if (!opts) {
3450 exit(1);
3451 }
3452 break;
3453 case QEMU_OPTION_fsdev:
3454 olist = qemu_find_opts("fsdev");
3455 if (!olist) {
3456 error_report("fsdev support is disabled");
3457 exit(1);
3458 }
3459 opts = qemu_opts_parse_noisily(olist, optarg, true);
3460 if (!opts) {
3461 exit(1);
3462 }
3463 break;
3464 case QEMU_OPTION_virtfs: {
3465 QemuOpts *fsdev;
3466 QemuOpts *device;
3467 const char *writeout, *sock_fd, *socket, *path, *security_model;
3468
3469 olist = qemu_find_opts("virtfs");
3470 if (!olist) {
3471 error_report("virtfs support is disabled");
3472 exit(1);
3473 }
3474 opts = qemu_opts_parse_noisily(olist, optarg, true);
3475 if (!opts) {
3476 exit(1);
3477 }
3478
3479 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3480 qemu_opt_get(opts, "mount_tag") == NULL) {
3481 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3482 exit(1);
3483 }
3484 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3485 qemu_opts_id(opts) ?:
3486 qemu_opt_get(opts, "mount_tag"),
3487 1, NULL);
3488 if (!fsdev) {
3489 error_report("duplicate or invalid fsdev id: %s",
3490 qemu_opt_get(opts, "mount_tag"));
3491 exit(1);
3492 }
3493
3494 writeout = qemu_opt_get(opts, "writeout");
3495 if (writeout) {
3496 #ifdef CONFIG_SYNC_FILE_RANGE
3497 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3498 #else
3499 error_report("writeout=immediate not supported "
3500 "on this platform");
3501 exit(1);
3502 #endif
3503 }
3504 qemu_opt_set(fsdev, "fsdriver",
3505 qemu_opt_get(opts, "fsdriver"), &error_abort);
3506 path = qemu_opt_get(opts, "path");
3507 if (path) {
3508 qemu_opt_set(fsdev, "path", path, &error_abort);
3509 }
3510 security_model = qemu_opt_get(opts, "security_model");
3511 if (security_model) {
3512 qemu_opt_set(fsdev, "security_model", security_model,
3513 &error_abort);
3514 }
3515 socket = qemu_opt_get(opts, "socket");
3516 if (socket) {
3517 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3518 }
3519 sock_fd = qemu_opt_get(opts, "sock_fd");
3520 if (sock_fd) {
3521 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3522 }
3523
3524 qemu_opt_set_bool(fsdev, "readonly",
3525 qemu_opt_get_bool(opts, "readonly", 0),
3526 &error_abort);
3527 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3528 &error_abort);
3529 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3530 qemu_opt_set(device, "fsdev",
3531 qemu_opts_id(fsdev), &error_abort);
3532 qemu_opt_set(device, "mount_tag",
3533 qemu_opt_get(opts, "mount_tag"), &error_abort);
3534 break;
3535 }
3536 case QEMU_OPTION_virtfs_synth: {
3537 QemuOpts *fsdev;
3538 QemuOpts *device;
3539
3540 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3541 1, NULL);
3542 if (!fsdev) {
3543 error_report("duplicate option: %s", "virtfs_synth");
3544 exit(1);
3545 }
3546 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3547
3548 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3549 &error_abort);
3550 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3551 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3552 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3553 break;
3554 }
3555 case QEMU_OPTION_serial:
3556 add_device_config(DEV_SERIAL, optarg);
3557 default_serial = 0;
3558 if (strncmp(optarg, "mon:", 4) == 0) {
3559 default_monitor = 0;
3560 }
3561 break;
3562 case QEMU_OPTION_watchdog:
3563 if (watchdog) {
3564 error_report("only one watchdog option may be given");
3565 return 1;
3566 }
3567 watchdog = optarg;
3568 break;
3569 case QEMU_OPTION_watchdog_action:
3570 if (select_watchdog_action(optarg) == -1) {
3571 error_report("unknown -watchdog-action parameter");
3572 exit(1);
3573 }
3574 break;
3575 case QEMU_OPTION_virtiocon:
3576 warn_report("This option is deprecated, "
3577 "use '-device virtconsole' instead");
3578 add_device_config(DEV_VIRTCON, optarg);
3579 default_virtcon = 0;
3580 if (strncmp(optarg, "mon:", 4) == 0) {
3581 default_monitor = 0;
3582 }
3583 break;
3584 case QEMU_OPTION_parallel:
3585 add_device_config(DEV_PARALLEL, optarg);
3586 default_parallel = 0;
3587 if (strncmp(optarg, "mon:", 4) == 0) {
3588 default_monitor = 0;
3589 }
3590 break;
3591 case QEMU_OPTION_debugcon:
3592 add_device_config(DEV_DEBUGCON, optarg);
3593 break;
3594 case QEMU_OPTION_loadvm:
3595 loadvm = optarg;
3596 break;
3597 case QEMU_OPTION_full_screen:
3598 dpy.has_full_screen = true;
3599 dpy.full_screen = true;
3600 break;
3601 case QEMU_OPTION_no_frame:
3602 g_printerr("The -no-frame switch is deprecated, and will be\n"
3603 "removed in a future release.\n");
3604 no_frame = 1;
3605 break;
3606 case QEMU_OPTION_alt_grab:
3607 alt_grab = 1;
3608 break;
3609 case QEMU_OPTION_ctrl_grab:
3610 ctrl_grab = 1;
3611 break;
3612 case QEMU_OPTION_no_quit:
3613 dpy.has_window_close = true;
3614 dpy.window_close = false;
3615 break;
3616 case QEMU_OPTION_sdl:
3617 #ifdef CONFIG_SDL
3618 dpy.type = DISPLAY_TYPE_SDL;
3619 break;
3620 #else
3621 error_report("SDL support is disabled");
3622 exit(1);
3623 #endif
3624 case QEMU_OPTION_pidfile:
3625 pid_file = optarg;
3626 break;
3627 case QEMU_OPTION_win2k_hack:
3628 win2k_install_hack = 1;
3629 break;
3630 case QEMU_OPTION_acpitable:
3631 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3632 optarg, true);
3633 if (!opts) {
3634 exit(1);
3635 }
3636 acpi_table_add(opts, &error_fatal);
3637 break;
3638 case QEMU_OPTION_smbios:
3639 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3640 optarg, false);
3641 if (!opts) {
3642 exit(1);
3643 }
3644 smbios_entry_add(opts, &error_fatal);
3645 break;
3646 case QEMU_OPTION_fwcfg:
3647 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3648 optarg, true);
3649 if (opts == NULL) {
3650 exit(1);
3651 }
3652 break;
3653 case QEMU_OPTION_preconfig:
3654 preconfig_exit_requested = false;
3655 break;
3656 case QEMU_OPTION_enable_kvm:
3657 olist = qemu_find_opts("machine");
3658 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3659 break;
3660 case QEMU_OPTION_enable_hax:
3661 warn_report("Option is deprecated, use '-accel hax' instead");
3662 olist = qemu_find_opts("machine");
3663 qemu_opts_parse_noisily(olist, "accel=hax", false);
3664 break;
3665 case QEMU_OPTION_M:
3666 case QEMU_OPTION_machine:
3667 olist = qemu_find_opts("machine");
3668 opts = qemu_opts_parse_noisily(olist, optarg, true);
3669 if (!opts) {
3670 exit(1);
3671 }
3672 break;
3673 case QEMU_OPTION_no_kvm:
3674 olist = qemu_find_opts("machine");
3675 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3676 break;
3677 case QEMU_OPTION_accel:
3678 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3679 optarg, true);
3680 optarg = qemu_opt_get(accel_opts, "accel");
3681 if (!optarg || is_help_option(optarg)) {
3682 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3683 exit(0);
3684 }
3685 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3686 false, &error_abort);
3687 qemu_opt_set(opts, "accel", optarg, &error_abort);
3688 break;
3689 case QEMU_OPTION_usb:
3690 olist = qemu_find_opts("machine");
3691 qemu_opts_parse_noisily(olist, "usb=on", false);
3692 break;
3693 case QEMU_OPTION_usbdevice:
3694 error_report("'-usbdevice' is deprecated, please use "
3695 "'-device usb-...' instead");
3696 olist = qemu_find_opts("machine");
3697 qemu_opts_parse_noisily(olist, "usb=on", false);
3698 add_device_config(DEV_USB, optarg);
3699 break;
3700 case QEMU_OPTION_device:
3701 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3702 optarg, true)) {
3703 exit(1);
3704 }
3705 break;
3706 case QEMU_OPTION_smp:
3707 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3708 optarg, true)) {
3709 exit(1);
3710 }
3711 break;
3712 case QEMU_OPTION_vnc:
3713 vnc_parse(optarg, &error_fatal);
3714 break;
3715 case QEMU_OPTION_no_acpi:
3716 acpi_enabled = 0;
3717 break;
3718 case QEMU_OPTION_no_hpet:
3719 no_hpet = 1;
3720 break;
3721 case QEMU_OPTION_no_reboot:
3722 no_reboot = 1;
3723 break;
3724 case QEMU_OPTION_no_shutdown:
3725 no_shutdown = 1;
3726 break;
3727 case QEMU_OPTION_show_cursor:
3728 cursor_hide = 0;
3729 break;
3730 case QEMU_OPTION_uuid:
3731 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3732 error_report("failed to parse UUID string: wrong format");
3733 exit(1);
3734 }
3735 qemu_uuid_set = true;
3736 break;
3737 case QEMU_OPTION_option_rom:
3738 if (nb_option_roms >= MAX_OPTION_ROMS) {
3739 error_report("too many option ROMs");
3740 exit(1);
3741 }
3742 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3743 optarg, true);
3744 if (!opts) {
3745 exit(1);
3746 }
3747 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3748 option_rom[nb_option_roms].bootindex =
3749 qemu_opt_get_number(opts, "bootindex", -1);
3750 if (!option_rom[nb_option_roms].name) {
3751 error_report("Option ROM file is not specified");
3752 exit(1);
3753 }
3754 nb_option_roms++;
3755 break;
3756 case QEMU_OPTION_semihosting:
3757 semihosting.enabled = true;
3758 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3759 break;
3760 case QEMU_OPTION_semihosting_config:
3761 semihosting.enabled = true;
3762 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3763 optarg, false);
3764 if (opts != NULL) {
3765 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3766 true);
3767 const char *target = qemu_opt_get(opts, "target");
3768 if (target != NULL) {
3769 if (strcmp("native", target) == 0) {
3770 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3771 } else if (strcmp("gdb", target) == 0) {
3772 semihosting.target = SEMIHOSTING_TARGET_GDB;
3773 } else if (strcmp("auto", target) == 0) {
3774 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3775 } else {
3776 error_report("unsupported semihosting-config %s",
3777 optarg);
3778 exit(1);
3779 }
3780 } else {
3781 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3782 }
3783 /* Set semihosting argument count and vector */
3784 qemu_opt_foreach(opts, add_semihosting_arg,
3785 &semihosting, NULL);
3786 } else {
3787 error_report("unsupported semihosting-config %s", optarg);
3788 exit(1);
3789 }
3790 break;
3791 case QEMU_OPTION_name:
3792 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3793 optarg, true);
3794 if (!opts) {
3795 exit(1);
3796 }
3797 break;
3798 case QEMU_OPTION_prom_env:
3799 if (nb_prom_envs >= MAX_PROM_ENVS) {
3800 error_report("too many prom variables");
3801 exit(1);
3802 }
3803 prom_envs[nb_prom_envs] = optarg;
3804 nb_prom_envs++;
3805 break;
3806 case QEMU_OPTION_old_param:
3807 old_param = 1;
3808 break;
3809 case QEMU_OPTION_clock:
3810 /* Clock options no longer exist. Keep this option for
3811 * backward compatibility.
3812 */
3813 warn_report("This option is ignored and will be removed soon");
3814 break;
3815 case QEMU_OPTION_rtc:
3816 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3817 false);
3818 if (!opts) {
3819 exit(1);
3820 }
3821 break;
3822 case QEMU_OPTION_tb_size:
3823 #ifndef CONFIG_TCG
3824 error_report("TCG is disabled");
3825 exit(1);
3826 #endif
3827 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3828 error_report("Invalid argument to -tb-size");
3829 exit(1);
3830 }
3831 break;
3832 case QEMU_OPTION_icount:
3833 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3834 optarg, true);
3835 if (!icount_opts) {
3836 exit(1);
3837 }
3838 break;
3839 case QEMU_OPTION_incoming:
3840 if (!incoming) {
3841 runstate_set(RUN_STATE_INMIGRATE);
3842 }
3843 incoming = optarg;
3844 break;
3845 case QEMU_OPTION_only_migratable:
3846 /*
3847 * TODO: we can remove this option one day, and we
3848 * should all use:
3849 *
3850 * "-global migration.only-migratable=true"
3851 */
3852 qemu_global_option("migration.only-migratable=true");
3853 break;
3854 case QEMU_OPTION_nodefaults:
3855 has_defaults = 0;
3856 break;
3857 case QEMU_OPTION_xen_domid:
3858 if (!(xen_available())) {
3859 error_report("Option not supported for this target");
3860 exit(1);
3861 }
3862 xen_domid = atoi(optarg);
3863 break;
3864 case QEMU_OPTION_xen_create:
3865 if (!(xen_available())) {
3866 error_report("Option not supported for this target");
3867 exit(1);
3868 }
3869 xen_mode = XEN_CREATE;
3870 break;
3871 case QEMU_OPTION_xen_attach:
3872 if (!(xen_available())) {
3873 error_report("Option not supported for this target");
3874 exit(1);
3875 }
3876 xen_mode = XEN_ATTACH;
3877 break;
3878 case QEMU_OPTION_xen_domid_restrict:
3879 if (!(xen_available())) {
3880 error_report("Option not supported for this target");
3881 exit(1);
3882 }
3883 xen_domid_restrict = true;
3884 break;
3885 case QEMU_OPTION_trace:
3886 g_free(trace_file);
3887 trace_file = trace_opt_parse(optarg);
3888 break;
3889 case QEMU_OPTION_readconfig:
3890 {
3891 int ret = qemu_read_config_file(optarg);
3892 if (ret < 0) {
3893 error_report("read config %s: %s", optarg,
3894 strerror(-ret));
3895 exit(1);
3896 }
3897 break;
3898 }
3899 case QEMU_OPTION_spice:
3900 olist = qemu_find_opts("spice");
3901 if (!olist) {
3902 error_report("spice support is disabled");
3903 exit(1);
3904 }
3905 opts = qemu_opts_parse_noisily(olist, optarg, false);
3906 if (!opts) {
3907 exit(1);
3908 }
3909 display_remote++;
3910 break;
3911 case QEMU_OPTION_writeconfig:
3912 {
3913 FILE *fp;
3914 if (strcmp(optarg, "-") == 0) {
3915 fp = stdout;
3916 } else {
3917 fp = fopen(optarg, "w");
3918 if (fp == NULL) {
3919 error_report("open %s: %s", optarg,
3920 strerror(errno));
3921 exit(1);
3922 }
3923 }
3924 qemu_config_write(fp);
3925 if (fp != stdout) {
3926 fclose(fp);
3927 }
3928 break;
3929 }
3930 case QEMU_OPTION_qtest:
3931 qtest_chrdev = optarg;
3932 break;
3933 case QEMU_OPTION_qtest_log:
3934 qtest_log = optarg;
3935 break;
3936 case QEMU_OPTION_sandbox:
3937 #ifdef CONFIG_SECCOMP
3938 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3939 optarg, true);
3940 if (!opts) {
3941 exit(1);
3942 }
3943 #else
3944 error_report("-sandbox support is not enabled "
3945 "in this QEMU binary");
3946 exit(1);
3947 #endif
3948 break;
3949 case QEMU_OPTION_add_fd:
3950 #ifndef _WIN32
3951 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3952 optarg, false);
3953 if (!opts) {
3954 exit(1);
3955 }
3956 #else
3957 error_report("File descriptor passing is disabled on this "
3958 "platform");
3959 exit(1);
3960 #endif
3961 break;
3962 case QEMU_OPTION_object:
3963 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3964 optarg, true);
3965 if (!opts) {
3966 exit(1);
3967 }
3968 break;
3969 case QEMU_OPTION_realtime:
3970 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3971 optarg, false);
3972 if (!opts) {
3973 exit(1);
3974 }
3975 /* Don't override the -overcommit option if set */
3976 enable_mlock = enable_mlock ||
3977 qemu_opt_get_bool(opts, "mlock", true);
3978 break;
3979 case QEMU_OPTION_overcommit:
3980 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3981 optarg, false);
3982 if (!opts) {
3983 exit(1);
3984 }
3985 /* Don't override the -realtime option if set */
3986 enable_mlock = enable_mlock ||
3987 qemu_opt_get_bool(opts, "mem-lock", false);
3988 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3989 break;
3990 case QEMU_OPTION_msg:
3991 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3992 false);
3993 if (!opts) {
3994 exit(1);
3995 }
3996 configure_msg(opts);
3997 break;
3998 case QEMU_OPTION_dump_vmstate:
3999 if (vmstate_dump_file) {
4000 error_report("only one '-dump-vmstate' "
4001 "option may be given");
4002 exit(1);
4003 }
4004 vmstate_dump_file = fopen(optarg, "w");
4005 if (vmstate_dump_file == NULL) {
4006 error_report("open %s: %s", optarg, strerror(errno));
4007 exit(1);
4008 }
4009 break;
4010 case QEMU_OPTION_enable_sync_profile:
4011 qsp_enable();
4012 break;
4013 case QEMU_OPTION_nouserconfig:
4014 /* Nothing to be parsed here. Especially, do not error out below. */
4015 break;
4016 default:
4017 if (os_parse_cmd_args(popt->index, optarg)) {
4018 error_report("Option not supported in this build");
4019 exit(1);
4020 }
4021 }
4022 }
4023 }
4024 /*
4025 * Clear error location left behind by the loop.
4026 * Best done right after the loop. Do not insert code here!
4027 */
4028 loc_set_none();
4029
4030 replay_configure(icount_opts);
4031
4032 if (incoming && !preconfig_exit_requested) {
4033 error_report("'preconfig' and 'incoming' options are "
4034 "mutually exclusive");
4035 exit(EXIT_FAILURE);
4036 }
4037
4038 configure_rtc(qemu_find_opts_singleton("rtc"));
4039
4040 machine_class = select_machine();
4041
4042 set_memory_options(&ram_slots, &maxram_size, machine_class);
4043
4044 os_daemonize();
4045 rcu_disable_atfork();
4046
4047 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
4048 error_reportf_err(err, "cannot create PID file: ");
4049 exit(1);
4050 }
4051
4052 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
4053 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4054
4055 if (qemu_init_main_loop(&main_loop_err)) {
4056 error_report_err(main_loop_err);
4057 exit(1);
4058 }
4059
4060 #ifdef CONFIG_SECCOMP
4061 olist = qemu_find_opts_err("sandbox", NULL);
4062 if (olist) {
4063 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4064 }
4065 #endif
4066
4067 qemu_opts_foreach(qemu_find_opts("name"),
4068 parse_name, NULL, &error_fatal);
4069
4070 #ifndef _WIN32
4071 qemu_opts_foreach(qemu_find_opts("add-fd"),
4072 parse_add_fd, NULL, &error_fatal);
4073
4074 qemu_opts_foreach(qemu_find_opts("add-fd"),
4075 cleanup_add_fd, NULL, &error_fatal);
4076 #endif
4077
4078 current_machine = MACHINE(object_new(object_class_get_name(
4079 OBJECT_CLASS(machine_class))));
4080 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4081 exit(0);
4082 }
4083 object_property_add_child(object_get_root(), "machine",
4084 OBJECT(current_machine), &error_abort);
4085
4086 if (machine_class->minimum_page_bits) {
4087 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4088 /* This would be a board error: specifying a minimum smaller than
4089 * a target's compile-time fixed setting.
4090 */
4091 g_assert_not_reached();
4092 }
4093 }
4094
4095 cpu_exec_init_all();
4096
4097 if (machine_class->hw_version) {
4098 qemu_set_hw_version(machine_class->hw_version);
4099 }
4100
4101 if (cpu_model && is_help_option(cpu_model)) {
4102 list_cpus(stdout, &fprintf, cpu_model);
4103 exit(0);
4104 }
4105
4106 if (!trace_init_backends()) {
4107 exit(1);
4108 }
4109 trace_init_file(trace_file);
4110
4111 /* Open the logfile at this point and set the log mask if necessary.
4112 */
4113 if (log_file) {
4114 qemu_set_log_filename(log_file, &error_fatal);
4115 }
4116
4117 if (log_mask) {
4118 int mask;
4119 mask = qemu_str_to_log_mask(log_mask);
4120 if (!mask) {
4121 qemu_print_log_usage(stdout);
4122 exit(1);
4123 }
4124 qemu_set_log(mask);
4125 } else {
4126 qemu_set_log(0);
4127 }
4128
4129 /* add configured firmware directories */
4130 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4131 for (i = 0; dirs[i] != NULL; i++) {
4132 qemu_add_data_dir(dirs[i]);
4133 }
4134 g_strfreev(dirs);
4135
4136 /* try to find datadir relative to the executable path */
4137 dir = os_find_datadir();
4138 qemu_add_data_dir(dir);
4139 g_free(dir);
4140
4141 /* add the datadir specified when building */
4142 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4143
4144 /* -L help lists the data directories and exits. */
4145 if (list_data_dirs) {
4146 for (i = 0; i < data_dir_idx; i++) {
4147 printf("%s\n", data_dir[i]);
4148 }
4149 exit(0);
4150 }
4151
4152 /* machine_class: default to UP */
4153 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4154 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4155 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4156
4157 /* default to machine_class->default_cpus */
4158 smp_cpus = machine_class->default_cpus;
4159 max_cpus = machine_class->default_cpus;
4160
4161 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4162
4163 /* sanity-check smp_cpus and max_cpus against machine_class */
4164 if (smp_cpus < machine_class->min_cpus) {
4165 error_report("Invalid SMP CPUs %d. The min CPUs "
4166 "supported by machine '%s' is %d", smp_cpus,
4167 machine_class->name, machine_class->min_cpus);
4168 exit(1);
4169 }
4170 if (max_cpus > machine_class->max_cpus) {
4171 error_report("Invalid SMP CPUs %d. The max CPUs "
4172 "supported by machine '%s' is %d", max_cpus,
4173 machine_class->name, machine_class->max_cpus);
4174 exit(1);
4175 }
4176
4177 /*
4178 * Get the default machine options from the machine if it is not already
4179 * specified either by the configuration file or by the command line.
4180 */
4181 if (machine_class->default_machine_opts) {
4182 qemu_opts_set_defaults(qemu_find_opts("machine"),
4183 machine_class->default_machine_opts, 0);
4184 }
4185
4186 qemu_opts_foreach(qemu_find_opts("device"),
4187 default_driver_check, NULL, NULL);
4188 qemu_opts_foreach(qemu_find_opts("global"),
4189 default_driver_check, NULL, NULL);
4190
4191 if (!vga_model && !default_vga) {
4192 vga_interface_type = VGA_DEVICE;
4193 }
4194 if (!has_defaults || machine_class->no_serial) {
4195 default_serial = 0;
4196 }
4197 if (!has_defaults || machine_class->no_parallel) {
4198 default_parallel = 0;
4199 }
4200 if (!has_defaults || !machine_class->use_virtcon) {
4201 default_virtcon = 0;
4202 }
4203 if (!has_defaults || machine_class->no_floppy) {
4204 default_floppy = 0;
4205 }
4206 if (!has_defaults || machine_class->no_cdrom) {
4207 default_cdrom = 0;
4208 }
4209 if (!has_defaults || machine_class->no_sdcard) {
4210 default_sdcard = 0;
4211 }
4212 if (!has_defaults) {
4213 default_monitor = 0;
4214 default_net = 0;
4215 default_vga = 0;
4216 }
4217
4218 if (is_daemonized()) {
4219 if (!preconfig_exit_requested) {
4220 error_report("'preconfig' and 'daemonize' options are "
4221 "mutually exclusive");
4222 exit(EXIT_FAILURE);
4223 }
4224
4225 /* According to documentation and historically, -nographic redirects
4226 * serial port, parallel port and monitor to stdio, which does not work
4227 * with -daemonize. We can redirect these to null instead, but since
4228 * -nographic is legacy, let's just error out.
4229 * We disallow -nographic only if all other ports are not redirected
4230 * explicitly, to not break existing legacy setups which uses
4231 * -nographic _and_ redirects all ports explicitly - this is valid
4232 * usage, -nographic is just a no-op in this case.
4233 */
4234 if (nographic
4235 && (default_parallel || default_serial
4236 || default_monitor || default_virtcon)) {
4237 error_report("-nographic cannot be used with -daemonize");
4238 exit(1);
4239 }
4240 #ifdef CONFIG_CURSES
4241 if (dpy.type == DISPLAY_TYPE_CURSES) {
4242 error_report("curses display cannot be used with -daemonize");
4243 exit(1);
4244 }
4245 #endif
4246 }
4247
4248 if (nographic) {
4249 if (default_parallel)
4250 add_device_config(DEV_PARALLEL, "null");
4251 if (default_serial && default_monitor) {
4252 add_device_config(DEV_SERIAL, "mon:stdio");
4253 } else if (default_virtcon && default_monitor) {
4254 add_device_config(DEV_VIRTCON, "mon:stdio");
4255 } else {
4256 if (default_serial)
4257 add_device_config(DEV_SERIAL, "stdio");
4258 if (default_virtcon)
4259 add_device_config(DEV_VIRTCON, "stdio");
4260 if (default_monitor)
4261 monitor_parse("stdio", "readline", false);
4262 }
4263 } else {
4264 if (default_serial)
4265 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4266 if (default_parallel)
4267 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4268 if (default_monitor)
4269 monitor_parse("vc:80Cx24C", "readline", false);
4270 if (default_virtcon)
4271 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4272 }
4273
4274 #if defined(CONFIG_VNC)
4275 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4276 display_remote++;
4277 }
4278 #endif
4279 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4280 if (!qemu_display_find_default(&dpy)) {
4281 dpy.type = DISPLAY_TYPE_NONE;
4282 #if defined(CONFIG_VNC)
4283 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4284 #endif
4285 }
4286 }
4287 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4288 dpy.type = DISPLAY_TYPE_NONE;
4289 }
4290
4291 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4292 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4293 "for SDL, ignoring option");
4294 }
4295 if (dpy.has_window_close &&
4296 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4297 error_report("-no-quit is only valid for GTK and SDL, "
4298 "ignoring option");
4299 }
4300
4301 qemu_display_early_init(&dpy);
4302 qemu_console_early_init();
4303
4304 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4305 #if defined(CONFIG_OPENGL)
4306 error_report("OpenGL is not supported by the display");
4307 #else
4308 error_report("OpenGL support is disabled");
4309 #endif
4310 exit(1);
4311 }
4312
4313 page_size_init();
4314 socket_init();
4315
4316 qemu_opts_foreach(qemu_find_opts("object"),
4317 user_creatable_add_opts_foreach,
4318 object_create_initial, &error_fatal);
4319
4320 qemu_opts_foreach(qemu_find_opts("chardev"),
4321 chardev_init_func, NULL, &error_fatal);
4322
4323 #ifdef CONFIG_VIRTFS
4324 qemu_opts_foreach(qemu_find_opts("fsdev"),
4325 fsdev_init_func, NULL, &error_fatal);
4326 #endif
4327
4328 if (qemu_opts_foreach(qemu_find_opts("device"),
4329 device_help_func, NULL, NULL)) {
4330 exit(0);
4331 }
4332
4333 machine_opts = qemu_get_machine_opts();
4334 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4335 &error_fatal);
4336
4337 configure_accelerator(current_machine);
4338
4339 if (!qtest_enabled() && machine_class->deprecation_reason) {
4340 error_report("Machine type '%s' is deprecated: %s",
4341 machine_class->name, machine_class->deprecation_reason);
4342 }
4343
4344 /*
4345 * Register all the global properties, including accel properties,
4346 * machine properties, and user-specified ones.
4347 */
4348 register_global_properties(current_machine);
4349
4350 /*
4351 * Migration object can only be created after global properties
4352 * are applied correctly.
4353 */
4354 migration_object_init();
4355
4356 if (qtest_chrdev) {
4357 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4358 }
4359
4360 machine_opts = qemu_get_machine_opts();
4361 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4362 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4363 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4364 bios_name = qemu_opt_get(machine_opts, "firmware");
4365
4366 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4367 if (opts) {
4368 boot_order = qemu_opt_get(opts, "order");
4369 if (boot_order) {
4370 validate_bootdevices(boot_order, &error_fatal);
4371 }
4372
4373 boot_once = qemu_opt_get(opts, "once");
4374 if (boot_once) {
4375 validate_bootdevices(boot_once, &error_fatal);
4376 }
4377
4378 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4379 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4380 }
4381
4382 if (!boot_order) {
4383 boot_order = machine_class->default_boot_order;
4384 }
4385
4386 if (!kernel_cmdline) {
4387 kernel_cmdline = "";
4388 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4389 }
4390
4391 linux_boot = (kernel_filename != NULL);
4392
4393 if (!linux_boot && *kernel_cmdline != '\0') {
4394 error_report("-append only allowed with -kernel option");
4395 exit(1);
4396 }
4397
4398 if (!linux_boot && initrd_filename != NULL) {
4399 error_report("-initrd only allowed with -kernel option");
4400 exit(1);
4401 }
4402
4403 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4404 /* fall back to the -kernel/-append */
4405 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4406 }
4407
4408 os_set_line_buffering();
4409
4410 /* spice needs the timers to be initialized by this point */
4411 qemu_spice_init();
4412
4413 cpu_ticks_init();
4414 if (icount_opts) {
4415 if (!tcg_enabled()) {
4416 error_report("-icount is not allowed with hardware virtualization");
4417 exit(1);
4418 }
4419 configure_icount(icount_opts, &error_abort);
4420 qemu_opts_del(icount_opts);
4421 }
4422
4423 if (tcg_enabled()) {
4424 qemu_tcg_configure(accel_opts, &error_fatal);
4425 }
4426
4427 if (default_net) {
4428 QemuOptsList *net = qemu_find_opts("net");
4429 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4430 #ifdef CONFIG_SLIRP
4431 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4432 #endif
4433 }
4434
4435 if (net_init_clients(&err) < 0) {
4436 error_report_err(err);
4437 exit(1);
4438 }
4439
4440 qemu_opts_foreach(qemu_find_opts("object"),
4441 user_creatable_add_opts_foreach,
4442 object_create_delayed, &error_fatal);
4443
4444 tpm_init();
4445
4446 /* init the bluetooth world */
4447 if (foreach_device_config(DEV_BT, bt_parse))
4448 exit(1);
4449
4450 if (!xen_enabled()) {
4451 /* On 32-bit hosts, QEMU is limited by virtual address space */
4452 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4453 error_report("at most 2047 MB RAM can be simulated");
4454 exit(1);
4455 }
4456 }
4457
4458 blk_mig_init();
4459 ram_mig_init();
4460 dirty_bitmap_mig_init();
4461
4462 /* If the currently selected machine wishes to override the units-per-bus
4463 * property of its default HBA interface type, do so now. */
4464 if (machine_class->units_per_default_bus) {
4465 override_max_devs(machine_class->block_default_type,
4466 machine_class->units_per_default_bus);
4467 }
4468
4469 /* open the virtual block devices */
4470 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4471 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4472
4473 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4474 loc_push_restore(&bdo->loc);
4475 qmp_blockdev_add(bdo->bdo, &error_fatal);
4476 loc_pop(&bdo->loc);
4477 qapi_free_BlockdevOptions(bdo->bdo);
4478 g_free(bdo);
4479 }
4480 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4481 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4482 NULL, NULL);
4483 }
4484 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4485 &machine_class->block_default_type, &error_fatal)) {
4486 /* We printed help */
4487 exit(0);
4488 }
4489
4490 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4491 CDROM_OPTS);
4492 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4493 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4494
4495 qemu_opts_foreach(qemu_find_opts("mon"),
4496 mon_init_func, NULL, &error_fatal);
4497
4498 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4499 exit(1);
4500 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4501 exit(1);
4502 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4503 exit(1);
4504 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4505 exit(1);
4506
4507 /* If no default VGA is requested, the default is "none". */
4508 if (default_vga) {
4509 if (machine_class->default_display) {
4510 vga_model = machine_class->default_display;
4511 } else if (vga_interface_available(VGA_CIRRUS)) {
4512 vga_model = "cirrus";
4513 } else if (vga_interface_available(VGA_STD)) {
4514 vga_model = "std";
4515 }
4516 }
4517 if (vga_model) {
4518 select_vgahw(vga_model);
4519 }
4520
4521 if (watchdog) {
4522 i = select_watchdog(watchdog);
4523 if (i > 0)
4524 exit (i == 1 ? 1 : 0);
4525 }
4526
4527 /* This checkpoint is required by replay to separate prior clock
4528 reading from the other reads, because timer polling functions query
4529 clock values from the log. */
4530 replay_checkpoint(CHECKPOINT_INIT);
4531 qdev_machine_init();
4532
4533 current_machine->ram_size = ram_size;
4534 current_machine->maxram_size = maxram_size;
4535 current_machine->ram_slots = ram_slots;
4536 current_machine->boot_order = boot_order;
4537
4538 /* parse features once if machine provides default cpu_type */
4539 current_machine->cpu_type = machine_class->default_cpu_type;
4540 if (cpu_model) {
4541 current_machine->cpu_type = parse_cpu_model(cpu_model);
4542 }
4543 parse_numa_opts(current_machine);
4544
4545 /* do monitor/qmp handling at preconfig state if requested */
4546 main_loop();
4547
4548 /* from here on runstate is RUN_STATE_PRELAUNCH */
4549 machine_run_board_init(current_machine);
4550
4551 realtime_init();
4552
4553 soundhw_init();
4554
4555 if (hax_enabled()) {
4556 hax_sync_vcpus();
4557 }
4558
4559 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4560 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4561
4562 /* init USB devices */
4563 if (machine_usb(current_machine)) {
4564 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4565 exit(1);
4566 }
4567
4568 /* Check if IGD GFX passthrough. */
4569 igd_gfx_passthru();
4570
4571 /* init generic devices */
4572 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4573 qemu_opts_foreach(qemu_find_opts("device"),
4574 device_init_func, NULL, &error_fatal);
4575
4576 cpu_synchronize_all_post_init();
4577
4578 rom_reset_order_override();
4579
4580 /* Did we create any drives that we failed to create a device for? */
4581 drive_check_orphaned();
4582
4583 /* Don't warn about the default network setup that you get if
4584 * no command line -net or -netdev options are specified. There
4585 * are two cases that we would otherwise complain about:
4586 * (1) board doesn't support a NIC but the implicit "-net nic"
4587 * requested one
4588 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4589 * sets up a nic that isn't connected to anything.
4590 */
4591 if (!default_net && (!qtest_enabled() || has_defaults)) {
4592 net_check_clients();
4593 }
4594
4595 if (boot_once) {
4596 qemu_boot_set(boot_once, &error_fatal);
4597 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4598 }
4599
4600 /* init local displays */
4601 ds = init_displaystate();
4602 qemu_display_init(ds, &dpy);
4603
4604 /* must be after terminal init, SDL library changes signal handlers */
4605 os_setup_signal_handling();
4606
4607 /* init remote displays */
4608 #ifdef CONFIG_VNC
4609 qemu_opts_foreach(qemu_find_opts("vnc"),
4610 vnc_init_func, NULL, &error_fatal);
4611 #endif
4612
4613 if (using_spice) {
4614 qemu_spice_display_init();
4615 }
4616
4617 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4618 exit(1);
4619 }
4620
4621 qdev_machine_creation_done();
4622
4623 /* TODO: once all bus devices are qdevified, this should be done
4624 * when bus is created by qdev.c */
4625 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4626 qemu_run_machine_init_done_notifiers();
4627
4628 if (rom_check_and_register_reset() != 0) {
4629 error_report("rom check and register reset failed");
4630 exit(1);
4631 }
4632
4633 replay_start();
4634
4635 /* This checkpoint is required by replay to separate prior clock
4636 reading from the other reads, because timer polling functions query
4637 clock values from the log. */
4638 replay_checkpoint(CHECKPOINT_RESET);
4639 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4640 register_global_state();
4641 if (loadvm) {
4642 Error *local_err = NULL;
4643 if (load_snapshot(loadvm, &local_err) < 0) {
4644 error_report_err(local_err);
4645 autostart = 0;
4646 exit(1);
4647 }
4648 }
4649 if (replay_mode != REPLAY_MODE_NONE) {
4650 replay_vmstate_init();
4651 }
4652
4653 qdev_prop_check_globals();
4654 if (vmstate_dump_file) {
4655 /* dump and exit */
4656 dump_vmstate_json_to_file(vmstate_dump_file);
4657 return 0;
4658 }
4659
4660 if (incoming) {
4661 Error *local_err = NULL;
4662 qemu_start_incoming_migration(incoming, &local_err);
4663 if (local_err) {
4664 error_reportf_err(local_err, "-incoming %s: ", incoming);
4665 exit(1);
4666 }
4667 } else if (autostart) {
4668 vm_start();
4669 }
4670
4671 accel_setup_post(current_machine);
4672 os_setup_post();
4673
4674 main_loop();
4675
4676 gdbserver_cleanup();
4677
4678 /* No more vcpu or device emulation activity beyond this point */
4679 vm_shutdown();
4680
4681 job_cancel_sync_all();
4682 bdrv_close_all();
4683
4684 res_free();
4685
4686 /* vhost-user must be cleaned up before chardevs. */
4687 tpm_cleanup();
4688 net_cleanup();
4689 audio_cleanup();
4690 monitor_cleanup();
4691 qemu_chr_cleanup();
4692 user_creatable_cleanup();
4693 migration_object_finalize();
4694 /* TODO: unref root container, check all devices are ok */
4695
4696 return 0;
4697 }
AR7 emulation for QEMU