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Merge tag 'v2.12.0-rc0'
[qemu/ar7.git] / vl.c
bloba79229f68b987466f449e5f9f1fdb0c07a09522d
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
31
32 #ifdef CONFIG_SECCOMP
33 #include <sys/prctl.h>
34 #include "sysemu/seccomp.h"
35 #endif
36
37 #ifdef CONFIG_SDL
38 #if defined(__APPLE__) || defined(main)
39 #define SDL_MAIN_HANDLED
40 #include <SDL.h>
41 #if SDL_MAJOR_VERSION == 1
42 int qemu_main(int argc, char **argv);
43 int main(int argc, char **argv)
44 {
45 return qemu_main(argc, argv);
46 }
47 #undef main
48 #define main qemu_main
49 #elif SDL_MAJOR_VERSION == 2
50 #undef main
51 #else
52 #error undefined SDL version
53 #endif
54 #endif
55 #endif /* CONFIG_SDL */
56
57 #ifdef CONFIG_COCOA
58 #undef main
59 #define main qemu_main
60 #endif /* CONFIG_COCOA */
61
62
63 #include "qemu/error-report.h"
64 #include "qemu/sockets.h"
65 #include "hw/hw.h"
66 #include "hw/boards.h"
67 #include "sysemu/accel.h"
68 #include "hw/usb.h"
69 #include "hw/isa/isa.h"
70 #include "hw/scsi/scsi.h"
71 #include "hw/display/vga.h"
72 #include "hw/bt.h"
73 #include "sysemu/watchdog.h"
74 #include "hw/smbios/smbios.h"
75 #include "hw/acpi/acpi.h"
76 #include "hw/xen/xen.h"
77 #include "hw/qdev.h"
78 #include "hw/loader.h"
79 #include "monitor/qdev.h"
80 #include "sysemu/bt.h"
81 #include "net/net.h"
82 #include "net/slirp.h"
83 #include "monitor/monitor.h"
84 #include "ui/console.h"
85 #include "ui/input.h"
86 #include "sysemu/sysemu.h"
87 #include "sysemu/numa.h"
88 #include "exec/gdbstub.h"
89 #include "qemu/timer.h"
90 #include "chardev/char.h"
91 #include "qemu/bitmap.h"
92 #include "qemu/log.h"
93 #include "sysemu/blockdev.h"
94 #include "hw/block/block.h"
95 #include "migration/misc.h"
96 #include "migration/snapshot.h"
97 #include "migration/global_state.h"
98 #include "sysemu/tpm.h"
99 #include "sysemu/dma.h"
100 #include "hw/audio/soundhw.h"
101 #include "audio/audio.h"
102 #include "sysemu/cpus.h"
103 #include "migration/colo.h"
104 #include "migration/postcopy-ram.h"
105 #include "sysemu/kvm.h"
106 #include "sysemu/hax.h"
107 #include "qapi/qobject-input-visitor.h"
108 #include "qemu/option.h"
109 #include "qemu/config-file.h"
110 #include "qemu-options.h"
111 #include "qemu/main-loop.h"
112 #ifdef CONFIG_VIRTFS
113 #include "fsdev/qemu-fsdev.h"
114 #endif
115 #include "sysemu/qtest.h"
116
117 #include "disas/disas.h"
118
119
120 #include "slirp/libslirp.h"
121
122 #include "trace-root.h"
123 #include "trace/control.h"
124 #include "qemu/queue.h"
125 #include "sysemu/arch_init.h"
126
127 #include "ui/qemu-spice.h"
128 #include "qapi/string-input-visitor.h"
129 #include "qapi/opts-visitor.h"
130 #include "qom/object_interfaces.h"
131 #include "exec/semihost.h"
132 #include "crypto/init.h"
133 #include "sysemu/replay.h"
134 #include "qapi/qapi-events-run-state.h"
135 #include "qapi/qapi-visit-block-core.h"
136 #include "qapi/qapi-commands-block-core.h"
137 #include "qapi/qapi-commands-misc.h"
138 #include "qapi/qapi-commands-run-state.h"
139 #include "qapi/qmp/qerror.h"
140 #include "sysemu/iothread.h"
141
142 #define MAX_VIRTIO_CONSOLES 1
143 #define MAX_SCLP_CONSOLES 1
144
145 static const char *data_dir[16];
146 static int data_dir_idx;
147 const char *bios_name = NULL;
148 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
149 int display_opengl;
150 const char* keyboard_layout = NULL;
151 ram_addr_t ram_size;
152 const char *mem_path = NULL;
153 int mem_prealloc = 0; /* force preallocation of physical target memory */
154 bool enable_mlock = false;
155 int nb_nics;
156 NICInfo nd_table[MAX_NICS];
157 int autostart;
158 static int rtc_utc = 1;
159 static int rtc_date_offset = -1; /* -1 means no change */
160 QEMUClockType rtc_clock;
161 int vga_interface_type = VGA_NONE;
162 static DisplayOptions dpy;
163 int no_frame;
164 Chardev *serial_hds[MAX_SERIAL_PORTS];
165 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
166 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
167 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
168 int win2k_install_hack = 0;
169 int singlestep = 0;
170 int smp_cpus;
171 unsigned int max_cpus;
172 int smp_cores = 1;
173 int smp_threads = 1;
174 int acpi_enabled = 1;
175 int no_hpet = 0;
176 int fd_bootchk = 1;
177 static int no_reboot;
178 int no_shutdown = 0;
179 int cursor_hide = 1;
180 int graphic_rotate = 0;
181 const char *watchdog;
182 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
183 int nb_option_roms;
184 int old_param = 0;
185 const char *qemu_name;
186 int alt_grab = 0;
187 int ctrl_grab = 0;
188 unsigned int nb_prom_envs = 0;
189 const char *prom_envs[MAX_PROM_ENVS];
190 int boot_menu;
191 bool boot_strict;
192 uint8_t *boot_splash_filedata;
193 size_t boot_splash_filedata_size;
194 uint8_t qemu_extra_params_fw[2];
195
196 int icount_align_option;
197
198 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
199 * little-endian "wire format" described in the SMBIOS 2.6 specification.
200 */
201 QemuUUID qemu_uuid;
202 bool qemu_uuid_set;
203
204 /* Trace unassigned memory or i/o accesses. */
205 bool trace_unassigned;
206
207 static NotifierList exit_notifiers =
208 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
209
210 static NotifierList machine_init_done_notifiers =
211 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
212
213 bool xen_allowed;
214 uint32_t xen_domid;
215 enum xen_mode xen_mode = XEN_EMULATE;
216 bool xen_domid_restrict;
217
218 static int has_defaults = 1;
219 static int default_serial = 1;
220 static int default_parallel = 1;
221 static int default_virtcon = 1;
222 static int default_sclp = 1;
223 static int default_monitor = 1;
224 static int default_floppy = 1;
225 static int default_cdrom = 1;
226 static int default_sdcard = 1;
227 static int default_vga = 1;
228 static int default_net = 1;
229
230 static struct {
231 const char *driver;
232 int *flag;
233 } default_list[] = {
234 { .driver = "isa-serial", .flag = &default_serial },
235 { .driver = "isa-parallel", .flag = &default_parallel },
236 { .driver = "isa-fdc", .flag = &default_floppy },
237 { .driver = "floppy", .flag = &default_floppy },
238 { .driver = "ide-cd", .flag = &default_cdrom },
239 { .driver = "ide-hd", .flag = &default_cdrom },
240 { .driver = "ide-drive", .flag = &default_cdrom },
241 { .driver = "scsi-cd", .flag = &default_cdrom },
242 { .driver = "scsi-hd", .flag = &default_cdrom },
243 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
244 { .driver = "virtio-serial", .flag = &default_virtcon },
245 { .driver = "VGA", .flag = &default_vga },
246 { .driver = "isa-vga", .flag = &default_vga },
247 { .driver = "cirrus-vga", .flag = &default_vga },
248 { .driver = "isa-cirrus-vga", .flag = &default_vga },
249 { .driver = "vmware-svga", .flag = &default_vga },
250 { .driver = "qxl-vga", .flag = &default_vga },
251 { .driver = "virtio-vga", .flag = &default_vga },
252 };
253
254 static QemuOptsList qemu_rtc_opts = {
255 .name = "rtc",
256 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
257 .desc = {
258 {
259 .name = "base",
260 .type = QEMU_OPT_STRING,
261 },{
262 .name = "clock",
263 .type = QEMU_OPT_STRING,
264 },{
265 .name = "driftfix",
266 .type = QEMU_OPT_STRING,
267 },
268 { /* end of list */ }
269 },
270 };
271
272 static QemuOptsList qemu_sandbox_opts = {
273 .name = "sandbox",
274 .implied_opt_name = "enable",
275 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
276 .desc = {
277 {
278 .name = "enable",
279 .type = QEMU_OPT_BOOL,
280 },
281 {
282 .name = "obsolete",
283 .type = QEMU_OPT_STRING,
284 },
285 {
286 .name = "elevateprivileges",
287 .type = QEMU_OPT_STRING,
288 },
289 {
290 .name = "spawn",
291 .type = QEMU_OPT_STRING,
292 },
293 {
294 .name = "resourcecontrol",
295 .type = QEMU_OPT_STRING,
296 },
297 { /* end of list */ }
298 },
299 };
300
301 static QemuOptsList qemu_option_rom_opts = {
302 .name = "option-rom",
303 .implied_opt_name = "romfile",
304 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
305 .desc = {
306 {
307 .name = "bootindex",
308 .type = QEMU_OPT_NUMBER,
309 }, {
310 .name = "romfile",
311 .type = QEMU_OPT_STRING,
312 },
313 { /* end of list */ }
314 },
315 };
316
317 static QemuOptsList qemu_machine_opts = {
318 .name = "machine",
319 .implied_opt_name = "type",
320 .merge_lists = true,
321 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
322 .desc = {
323 /*
324 * no elements => accept any
325 * sanity checking will happen later
326 * when setting machine properties
327 */
328 { }
329 },
330 };
331
332 static QemuOptsList qemu_accel_opts = {
333 .name = "accel",
334 .implied_opt_name = "accel",
335 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
336 .merge_lists = true,
337 .desc = {
338 {
339 .name = "accel",
340 .type = QEMU_OPT_STRING,
341 .help = "Select the type of accelerator",
342 },
343 {
344 .name = "thread",
345 .type = QEMU_OPT_STRING,
346 .help = "Enable/disable multi-threaded TCG",
347 },
348 { /* end of list */ }
349 },
350 };
351
352 static QemuOptsList qemu_boot_opts = {
353 .name = "boot-opts",
354 .implied_opt_name = "order",
355 .merge_lists = true,
356 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
357 .desc = {
358 {
359 .name = "order",
360 .type = QEMU_OPT_STRING,
361 }, {
362 .name = "once",
363 .type = QEMU_OPT_STRING,
364 }, {
365 .name = "menu",
366 .type = QEMU_OPT_BOOL,
367 }, {
368 .name = "splash",
369 .type = QEMU_OPT_STRING,
370 }, {
371 .name = "splash-time",
372 .type = QEMU_OPT_STRING,
373 }, {
374 .name = "reboot-timeout",
375 .type = QEMU_OPT_STRING,
376 }, {
377 .name = "strict",
378 .type = QEMU_OPT_BOOL,
379 },
380 { /*End of list */ }
381 },
382 };
383
384 static QemuOptsList qemu_add_fd_opts = {
385 .name = "add-fd",
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
387 .desc = {
388 {
389 .name = "fd",
390 .type = QEMU_OPT_NUMBER,
391 .help = "file descriptor of which a duplicate is added to fd set",
392 },{
393 .name = "set",
394 .type = QEMU_OPT_NUMBER,
395 .help = "ID of the fd set to add fd to",
396 },{
397 .name = "opaque",
398 .type = QEMU_OPT_STRING,
399 .help = "free-form string used to describe fd",
400 },
401 { /* end of list */ }
402 },
403 };
404
405 static QemuOptsList qemu_object_opts = {
406 .name = "object",
407 .implied_opt_name = "qom-type",
408 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
409 .desc = {
410 { }
411 },
412 };
413
414 static QemuOptsList qemu_tpmdev_opts = {
415 .name = "tpmdev",
416 .implied_opt_name = "type",
417 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
418 .desc = {
419 /* options are defined in the TPM backends */
420 { /* end of list */ }
421 },
422 };
423
424 static QemuOptsList qemu_realtime_opts = {
425 .name = "realtime",
426 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
427 .desc = {
428 {
429 .name = "mlock",
430 .type = QEMU_OPT_BOOL,
431 },
432 { /* end of list */ }
433 },
434 };
435
436 static QemuOptsList qemu_msg_opts = {
437 .name = "msg",
438 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
439 .desc = {
440 {
441 .name = "timestamp",
442 .type = QEMU_OPT_BOOL,
443 },
444 { /* end of list */ }
445 },
446 };
447
448 static QemuOptsList qemu_name_opts = {
449 .name = "name",
450 .implied_opt_name = "guest",
451 .merge_lists = true,
452 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
453 .desc = {
454 {
455 .name = "guest",
456 .type = QEMU_OPT_STRING,
457 .help = "Sets the name of the guest.\n"
458 "This name will be displayed in the SDL window caption.\n"
459 "The name will also be used for the VNC server",
460 }, {
461 .name = "process",
462 .type = QEMU_OPT_STRING,
463 .help = "Sets the name of the QEMU process, as shown in top etc",
464 }, {
465 .name = "debug-threads",
466 .type = QEMU_OPT_BOOL,
467 .help = "When enabled, name the individual threads; defaults off.\n"
468 "NOTE: The thread names are for debugging and not a\n"
469 "stable API.",
470 },
471 { /* End of list */ }
472 },
473 };
474
475 static QemuOptsList qemu_mem_opts = {
476 .name = "memory",
477 .implied_opt_name = "size",
478 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
479 .merge_lists = true,
480 .desc = {
481 {
482 .name = "size",
483 .type = QEMU_OPT_SIZE,
484 },
485 {
486 .name = "slots",
487 .type = QEMU_OPT_NUMBER,
488 },
489 {
490 .name = "maxmem",
491 .type = QEMU_OPT_SIZE,
492 },
493 { /* end of list */ }
494 },
495 };
496
497 static QemuOptsList qemu_icount_opts = {
498 .name = "icount",
499 .implied_opt_name = "shift",
500 .merge_lists = true,
501 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
502 .desc = {
503 {
504 .name = "shift",
505 .type = QEMU_OPT_STRING,
506 }, {
507 .name = "align",
508 .type = QEMU_OPT_BOOL,
509 }, {
510 .name = "sleep",
511 .type = QEMU_OPT_BOOL,
512 }, {
513 .name = "rr",
514 .type = QEMU_OPT_STRING,
515 }, {
516 .name = "rrfile",
517 .type = QEMU_OPT_STRING,
518 }, {
519 .name = "rrsnapshot",
520 .type = QEMU_OPT_STRING,
521 },
522 { /* end of list */ }
523 },
524 };
525
526 static QemuOptsList qemu_semihosting_config_opts = {
527 .name = "semihosting-config",
528 .implied_opt_name = "enable",
529 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
530 .desc = {
531 {
532 .name = "enable",
533 .type = QEMU_OPT_BOOL,
534 }, {
535 .name = "target",
536 .type = QEMU_OPT_STRING,
537 }, {
538 .name = "arg",
539 .type = QEMU_OPT_STRING,
540 },
541 { /* end of list */ }
542 },
543 };
544
545 static QemuOptsList qemu_fw_cfg_opts = {
546 .name = "fw_cfg",
547 .implied_opt_name = "name",
548 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
549 .desc = {
550 {
551 .name = "name",
552 .type = QEMU_OPT_STRING,
553 .help = "Sets the fw_cfg name of the blob to be inserted",
554 }, {
555 .name = "file",
556 .type = QEMU_OPT_STRING,
557 .help = "Sets the name of the file from which\n"
558 "the fw_cfg blob will be loaded",
559 }, {
560 .name = "string",
561 .type = QEMU_OPT_STRING,
562 .help = "Sets content of the blob to be inserted from a string",
563 },
564 { /* end of list */ }
565 },
566 };
567
568 /**
569 * Get machine options
570 *
571 * Returns: machine options (never null).
572 */
573 QemuOpts *qemu_get_machine_opts(void)
574 {
575 return qemu_find_opts_singleton("machine");
576 }
577
578 const char *qemu_get_vm_name(void)
579 {
580 return qemu_name;
581 }
582
583 static void res_free(void)
584 {
585 g_free(boot_splash_filedata);
586 boot_splash_filedata = NULL;
587 }
588
589 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
590 {
591 const char *driver = qemu_opt_get(opts, "driver");
592 int i;
593
594 if (!driver)
595 return 0;
596 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
597 if (strcmp(default_list[i].driver, driver) != 0)
598 continue;
599 *(default_list[i].flag) = 0;
600 }
601 return 0;
602 }
603
604 /***********************************************************/
605 /* QEMU state */
606
607 static RunState current_run_state = RUN_STATE_PRELAUNCH;
608
609 /* We use RUN_STATE__MAX but any invalid value will do */
610 static RunState vmstop_requested = RUN_STATE__MAX;
611 static QemuMutex vmstop_lock;
612
613 typedef struct {
614 RunState from;
615 RunState to;
616 } RunStateTransition;
617
618 static const RunStateTransition runstate_transitions_def[] = {
619 /* from -> to */
620 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
621 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
623
624 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
625 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
626 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
627 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
628 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
629 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
630 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
631 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
632 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
634 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
635 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
636
637 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
638 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
640
641 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
642 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
644
645 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
646 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
647 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
648 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
649 { RUN_STATE_PAUSED, RUN_STATE_COLO},
650
651 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
652 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
653 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
654
655 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
656 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
657 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
658
659 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
660 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
661 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
662 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
663 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
664
665 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
666 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
667
668 { RUN_STATE_COLO, RUN_STATE_RUNNING },
669
670 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
671 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
672 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
673 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
674 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
675 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
676 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
677 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
678 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
679 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
680 { RUN_STATE_RUNNING, RUN_STATE_COLO},
681
682 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
683
684 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
685 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
686 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
687
688 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
689 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
690 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
691 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
692 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
693 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
694
695 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
696 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
697 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
698 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
699
700 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
701 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
702 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
703
704 { RUN_STATE__MAX, RUN_STATE__MAX },
705 };
706
707 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
708
709 bool runstate_check(RunState state)
710 {
711 return current_run_state == state;
712 }
713
714 bool runstate_store(char *str, size_t size)
715 {
716 const char *state = RunState_str(current_run_state);
717 size_t len = strlen(state) + 1;
718
719 if (len > size) {
720 return false;
721 }
722 memcpy(str, state, len);
723 return true;
724 }
725
726 static void runstate_init(void)
727 {
728 const RunStateTransition *p;
729
730 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
731 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
732 runstate_valid_transitions[p->from][p->to] = true;
733 }
734
735 qemu_mutex_init(&vmstop_lock);
736 }
737
738 /* This function will abort() on invalid state transitions */
739 void runstate_set(RunState new_state)
740 {
741 assert(new_state < RUN_STATE__MAX);
742
743 if (current_run_state == new_state) {
744 return;
745 }
746
747 if (!runstate_valid_transitions[current_run_state][new_state]) {
748 error_report("invalid runstate transition: '%s' -> '%s'",
749 RunState_str(current_run_state),
750 RunState_str(new_state));
751 abort();
752 }
753 trace_runstate_set(new_state);
754 current_run_state = new_state;
755 }
756
757 int runstate_is_running(void)
758 {
759 return runstate_check(RUN_STATE_RUNNING);
760 }
761
762 bool runstate_needs_reset(void)
763 {
764 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
765 runstate_check(RUN_STATE_SHUTDOWN);
766 }
767
768 StatusInfo *qmp_query_status(Error **errp)
769 {
770 StatusInfo *info = g_malloc0(sizeof(*info));
771
772 info->running = runstate_is_running();
773 info->singlestep = singlestep;
774 info->status = current_run_state;
775
776 return info;
777 }
778
779 bool qemu_vmstop_requested(RunState *r)
780 {
781 qemu_mutex_lock(&vmstop_lock);
782 *r = vmstop_requested;
783 vmstop_requested = RUN_STATE__MAX;
784 qemu_mutex_unlock(&vmstop_lock);
785 return *r < RUN_STATE__MAX;
786 }
787
788 void qemu_system_vmstop_request_prepare(void)
789 {
790 qemu_mutex_lock(&vmstop_lock);
791 }
792
793 void qemu_system_vmstop_request(RunState state)
794 {
795 vmstop_requested = state;
796 qemu_mutex_unlock(&vmstop_lock);
797 qemu_notify_event();
798 }
799
800 /***********************************************************/
801 /* real time host monotonic timer */
802
803 static time_t qemu_time(void)
804 {
805 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
806 }
807
808 /***********************************************************/
809 /* host time/date access */
810 void qemu_get_timedate(struct tm *tm, int offset)
811 {
812 time_t ti = qemu_time();
813
814 ti += offset;
815 if (rtc_date_offset == -1) {
816 if (rtc_utc)
817 gmtime_r(&ti, tm);
818 else
819 localtime_r(&ti, tm);
820 } else {
821 ti -= rtc_date_offset;
822 gmtime_r(&ti, tm);
823 }
824 }
825
826 int qemu_timedate_diff(struct tm *tm)
827 {
828 time_t seconds;
829
830 if (rtc_date_offset == -1)
831 if (rtc_utc)
832 seconds = mktimegm(tm);
833 else {
834 struct tm tmp = *tm;
835 tmp.tm_isdst = -1; /* use timezone to figure it out */
836 seconds = mktime(&tmp);
837 }
838 else
839 seconds = mktimegm(tm) + rtc_date_offset;
840
841 return seconds - qemu_time();
842 }
843
844 static void configure_rtc_date_offset(const char *startdate, int legacy)
845 {
846 time_t rtc_start_date;
847 struct tm tm;
848
849 if (!strcmp(startdate, "now") && legacy) {
850 rtc_date_offset = -1;
851 } else {
852 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
853 &tm.tm_year,
854 &tm.tm_mon,
855 &tm.tm_mday,
856 &tm.tm_hour,
857 &tm.tm_min,
858 &tm.tm_sec) == 6) {
859 /* OK */
860 } else if (sscanf(startdate, "%d-%d-%d",
861 &tm.tm_year,
862 &tm.tm_mon,
863 &tm.tm_mday) == 3) {
864 tm.tm_hour = 0;
865 tm.tm_min = 0;
866 tm.tm_sec = 0;
867 } else {
868 goto date_fail;
869 }
870 tm.tm_year -= 1900;
871 tm.tm_mon--;
872 rtc_start_date = mktimegm(&tm);
873 if (rtc_start_date == -1) {
874 date_fail:
875 error_report("invalid date format");
876 error_printf("valid formats: "
877 "'2006-06-17T16:01:21' or '2006-06-17'\n");
878 exit(1);
879 }
880 rtc_date_offset = qemu_time() - rtc_start_date;
881 }
882 }
883
884 static void configure_rtc(QemuOpts *opts)
885 {
886 const char *value;
887
888 value = qemu_opt_get(opts, "base");
889 if (value) {
890 if (!strcmp(value, "utc")) {
891 rtc_utc = 1;
892 } else if (!strcmp(value, "localtime")) {
893 Error *blocker = NULL;
894 rtc_utc = 0;
895 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
896 "-rtc base=localtime");
897 replay_add_blocker(blocker);
898 } else {
899 configure_rtc_date_offset(value, 0);
900 }
901 }
902 value = qemu_opt_get(opts, "clock");
903 if (value) {
904 if (!strcmp(value, "host")) {
905 rtc_clock = QEMU_CLOCK_HOST;
906 } else if (!strcmp(value, "rt")) {
907 rtc_clock = QEMU_CLOCK_REALTIME;
908 } else if (!strcmp(value, "vm")) {
909 rtc_clock = QEMU_CLOCK_VIRTUAL;
910 } else {
911 error_report("invalid option value '%s'", value);
912 exit(1);
913 }
914 }
915 value = qemu_opt_get(opts, "driftfix");
916 if (value) {
917 if (!strcmp(value, "slew")) {
918 static GlobalProperty slew_lost_ticks = {
919 .driver = "mc146818rtc",
920 .property = "lost_tick_policy",
921 .value = "slew",
922 };
923
924 qdev_prop_register_global(&slew_lost_ticks);
925 } else if (!strcmp(value, "none")) {
926 /* discard is default */
927 } else {
928 error_report("invalid option value '%s'", value);
929 exit(1);
930 }
931 }
932 }
933
934 /***********************************************************/
935 /* Bluetooth support */
936 static int nb_hcis;
937 static int cur_hci;
938 static struct HCIInfo *hci_table[MAX_NICS];
939
940 struct HCIInfo *qemu_next_hci(void)
941 {
942 if (cur_hci == nb_hcis)
943 return &null_hci;
944
945 return hci_table[cur_hci++];
946 }
947
948 static int bt_hci_parse(const char *str)
949 {
950 struct HCIInfo *hci;
951 bdaddr_t bdaddr;
952
953 if (nb_hcis >= MAX_NICS) {
954 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
955 return -1;
956 }
957
958 hci = hci_init(str);
959 if (!hci)
960 return -1;
961
962 bdaddr.b[0] = 0x52;
963 bdaddr.b[1] = 0x54;
964 bdaddr.b[2] = 0x00;
965 bdaddr.b[3] = 0x12;
966 bdaddr.b[4] = 0x34;
967 bdaddr.b[5] = 0x56 + nb_hcis;
968 hci->bdaddr_set(hci, bdaddr.b);
969
970 hci_table[nb_hcis++] = hci;
971
972 return 0;
973 }
974
975 static void bt_vhci_add(int vlan_id)
976 {
977 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
978
979 if (!vlan->slave)
980 warn_report("adding a VHCI to an empty scatternet %i",
981 vlan_id);
982
983 bt_vhci_init(bt_new_hci(vlan));
984 }
985
986 static struct bt_device_s *bt_device_add(const char *opt)
987 {
988 struct bt_scatternet_s *vlan;
989 int vlan_id = 0;
990 char *endp = strstr(opt, ",vlan=");
991 int len = (endp ? endp - opt : strlen(opt)) + 1;
992 char devname[10];
993
994 pstrcpy(devname, MIN(sizeof(devname), len), opt);
995
996 if (endp) {
997 vlan_id = strtol(endp + 6, &endp, 0);
998 if (*endp) {
999 error_report("unrecognised bluetooth vlan Id");
1000 return 0;
1001 }
1002 }
1003
1004 vlan = qemu_find_bt_vlan(vlan_id);
1005
1006 if (!vlan->slave)
1007 warn_report("adding a slave device to an empty scatternet %i",
1008 vlan_id);
1009
1010 if (!strcmp(devname, "keyboard"))
1011 return bt_keyboard_init(vlan);
1012
1013 error_report("unsupported bluetooth device '%s'", devname);
1014 return 0;
1015 }
1016
1017 static int bt_parse(const char *opt)
1018 {
1019 const char *endp, *p;
1020 int vlan;
1021
1022 if (strstart(opt, "hci", &endp)) {
1023 if (!*endp || *endp == ',') {
1024 if (*endp)
1025 if (!strstart(endp, ",vlan=", 0))
1026 opt = endp + 1;
1027
1028 return bt_hci_parse(opt);
1029 }
1030 } else if (strstart(opt, "vhci", &endp)) {
1031 if (!*endp || *endp == ',') {
1032 if (*endp) {
1033 if (strstart(endp, ",vlan=", &p)) {
1034 vlan = strtol(p, (char **) &endp, 0);
1035 if (*endp) {
1036 error_report("bad scatternet '%s'", p);
1037 return 1;
1038 }
1039 } else {
1040 error_report("bad parameter '%s'", endp + 1);
1041 return 1;
1042 }
1043 } else
1044 vlan = 0;
1045
1046 bt_vhci_add(vlan);
1047 return 0;
1048 }
1049 } else if (strstart(opt, "device:", &endp))
1050 return !bt_device_add(endp);
1051
1052 error_report("bad bluetooth parameter '%s'", opt);
1053 return 1;
1054 }
1055
1056 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1057 {
1058 if (qemu_opt_get_bool(opts, "enable", false)) {
1059 #ifdef CONFIG_SECCOMP
1060 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1061 | QEMU_SECCOMP_SET_OBSOLETE;
1062 const char *value = NULL;
1063
1064 value = qemu_opt_get(opts, "obsolete");
1065 if (value) {
1066 if (g_str_equal(value, "allow")) {
1067 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1068 } else if (g_str_equal(value, "deny")) {
1069 /* this is the default option, this if is here
1070 * to provide a little bit of consistency for
1071 * the command line */
1072 } else {
1073 error_report("invalid argument for obsolete");
1074 return -1;
1075 }
1076 }
1077
1078 value = qemu_opt_get(opts, "elevateprivileges");
1079 if (value) {
1080 if (g_str_equal(value, "deny")) {
1081 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1082 } else if (g_str_equal(value, "children")) {
1083 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1084
1085 /* calling prctl directly because we're
1086 * not sure if host has CAP_SYS_ADMIN set*/
1087 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1088 error_report("failed to set no_new_privs "
1089 "aborting");
1090 return -1;
1091 }
1092 } else if (g_str_equal(value, "allow")) {
1093 /* default value */
1094 } else {
1095 error_report("invalid argument for elevateprivileges");
1096 return -1;
1097 }
1098 }
1099
1100 value = qemu_opt_get(opts, "spawn");
1101 if (value) {
1102 if (g_str_equal(value, "deny")) {
1103 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1104 } else if (g_str_equal(value, "allow")) {
1105 /* default value */
1106 } else {
1107 error_report("invalid argument for spawn");
1108 return -1;
1109 }
1110 }
1111
1112 value = qemu_opt_get(opts, "resourcecontrol");
1113 if (value) {
1114 if (g_str_equal(value, "deny")) {
1115 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1116 } else if (g_str_equal(value, "allow")) {
1117 /* default value */
1118 } else {
1119 error_report("invalid argument for resourcecontrol");
1120 return -1;
1121 }
1122 }
1123
1124 if (seccomp_start(seccomp_opts) < 0) {
1125 error_report("failed to install seccomp syscall filter "
1126 "in the kernel");
1127 return -1;
1128 }
1129 #else
1130 error_report("seccomp support is disabled");
1131 return -1;
1132 #endif
1133 }
1134
1135 return 0;
1136 }
1137
1138 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1139 {
1140 const char *proc_name;
1141
1142 if (qemu_opt_get(opts, "debug-threads")) {
1143 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1144 }
1145 qemu_name = qemu_opt_get(opts, "guest");
1146
1147 proc_name = qemu_opt_get(opts, "process");
1148 if (proc_name) {
1149 os_set_proc_name(proc_name);
1150 }
1151
1152 return 0;
1153 }
1154
1155 bool defaults_enabled(void)
1156 {
1157 return has_defaults;
1158 }
1159
1160 #ifndef _WIN32
1161 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1162 {
1163 int fd, dupfd, flags;
1164 int64_t fdset_id;
1165 const char *fd_opaque = NULL;
1166 AddfdInfo *fdinfo;
1167
1168 fd = qemu_opt_get_number(opts, "fd", -1);
1169 fdset_id = qemu_opt_get_number(opts, "set", -1);
1170 fd_opaque = qemu_opt_get(opts, "opaque");
1171
1172 if (fd < 0) {
1173 error_report("fd option is required and must be non-negative");
1174 return -1;
1175 }
1176
1177 if (fd <= STDERR_FILENO) {
1178 error_report("fd cannot be a standard I/O stream");
1179 return -1;
1180 }
1181
1182 /*
1183 * All fds inherited across exec() necessarily have FD_CLOEXEC
1184 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1185 */
1186 flags = fcntl(fd, F_GETFD);
1187 if (flags == -1 || (flags & FD_CLOEXEC)) {
1188 error_report("fd is not valid or already in use");
1189 return -1;
1190 }
1191
1192 if (fdset_id < 0) {
1193 error_report("set option is required and must be non-negative");
1194 return -1;
1195 }
1196
1197 #ifdef F_DUPFD_CLOEXEC
1198 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1199 #else
1200 dupfd = dup(fd);
1201 if (dupfd != -1) {
1202 qemu_set_cloexec(dupfd);
1203 }
1204 #endif
1205 if (dupfd == -1) {
1206 error_report("error duplicating fd: %s", strerror(errno));
1207 return -1;
1208 }
1209
1210 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1211 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1212 &error_abort);
1213 g_free(fdinfo);
1214
1215 return 0;
1216 }
1217
1218 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1219 {
1220 int fd;
1221
1222 fd = qemu_opt_get_number(opts, "fd", -1);
1223 close(fd);
1224
1225 return 0;
1226 }
1227 #endif
1228
1229 /***********************************************************/
1230 /* QEMU Block devices */
1231
1232 #define HD_OPTS "media=disk"
1233 #define CDROM_OPTS "media=cdrom"
1234 #define FD_OPTS ""
1235 #define PFLASH_OPTS ""
1236 #define MTD_OPTS ""
1237 #define SD_OPTS ""
1238
1239 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1240 {
1241 BlockInterfaceType *block_default_type = opaque;
1242
1243 return drive_new(opts, *block_default_type) == NULL;
1244 }
1245
1246 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1247 {
1248 if (qemu_opt_get(opts, "snapshot") == NULL) {
1249 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1250 }
1251 return 0;
1252 }
1253
1254 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1255 int index, const char *optstr)
1256 {
1257 QemuOpts *opts;
1258 DriveInfo *dinfo;
1259
1260 if (!enable || drive_get_by_index(type, index)) {
1261 return;
1262 }
1263
1264 opts = drive_add(type, index, NULL, optstr);
1265 if (snapshot) {
1266 drive_enable_snapshot(NULL, opts, NULL);
1267 }
1268
1269 dinfo = drive_new(opts, type);
1270 if (!dinfo) {
1271 exit(1);
1272 }
1273 dinfo->is_default = true;
1274
1275 }
1276
1277 static QemuOptsList qemu_smp_opts = {
1278 .name = "smp-opts",
1279 .implied_opt_name = "cpus",
1280 .merge_lists = true,
1281 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1282 .desc = {
1283 {
1284 .name = "cpus",
1285 .type = QEMU_OPT_NUMBER,
1286 }, {
1287 .name = "sockets",
1288 .type = QEMU_OPT_NUMBER,
1289 }, {
1290 .name = "cores",
1291 .type = QEMU_OPT_NUMBER,
1292 }, {
1293 .name = "threads",
1294 .type = QEMU_OPT_NUMBER,
1295 }, {
1296 .name = "maxcpus",
1297 .type = QEMU_OPT_NUMBER,
1298 },
1299 { /*End of list */ }
1300 },
1301 };
1302
1303 static void smp_parse(QemuOpts *opts)
1304 {
1305 if (opts) {
1306 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1307 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1308 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1309 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1310
1311 /* compute missing values, prefer sockets over cores over threads */
1312 if (cpus == 0 || sockets == 0) {
1313 sockets = sockets > 0 ? sockets : 1;
1314 cores = cores > 0 ? cores : 1;
1315 threads = threads > 0 ? threads : 1;
1316 if (cpus == 0) {
1317 cpus = cores * threads * sockets;
1318 }
1319 } else if (cores == 0) {
1320 threads = threads > 0 ? threads : 1;
1321 cores = cpus / (sockets * threads);
1322 cores = cores > 0 ? cores : 1;
1323 } else if (threads == 0) {
1324 threads = cpus / (cores * sockets);
1325 threads = threads > 0 ? threads : 1;
1326 } else if (sockets * cores * threads < cpus) {
1327 error_report("cpu topology: "
1328 "sockets (%u) * cores (%u) * threads (%u) < "
1329 "smp_cpus (%u)",
1330 sockets, cores, threads, cpus);
1331 exit(1);
1332 }
1333
1334 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1335
1336 if (max_cpus < cpus) {
1337 error_report("maxcpus must be equal to or greater than smp");
1338 exit(1);
1339 }
1340
1341 if (sockets * cores * threads > max_cpus) {
1342 error_report("cpu topology: "
1343 "sockets (%u) * cores (%u) * threads (%u) > "
1344 "maxcpus (%u)",
1345 sockets, cores, threads, max_cpus);
1346 exit(1);
1347 }
1348
1349 smp_cpus = cpus;
1350 smp_cores = cores;
1351 smp_threads = threads;
1352 }
1353
1354 if (smp_cpus > 1) {
1355 Error *blocker = NULL;
1356 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1357 replay_add_blocker(blocker);
1358 }
1359 }
1360
1361 static void realtime_init(void)
1362 {
1363 if (enable_mlock) {
1364 if (os_mlock() < 0) {
1365 error_report("locking memory failed");
1366 exit(1);
1367 }
1368 }
1369 }
1370
1371
1372 static void configure_msg(QemuOpts *opts)
1373 {
1374 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1375 }
1376
1377 /***********************************************************/
1378 /* Semihosting */
1379
1380 typedef struct SemihostingConfig {
1381 bool enabled;
1382 SemihostingTarget target;
1383 const char **argv;
1384 int argc;
1385 const char *cmdline; /* concatenated argv */
1386 } SemihostingConfig;
1387
1388 static SemihostingConfig semihosting;
1389
1390 bool semihosting_enabled(void)
1391 {
1392 return semihosting.enabled;
1393 }
1394
1395 SemihostingTarget semihosting_get_target(void)
1396 {
1397 return semihosting.target;
1398 }
1399
1400 const char *semihosting_get_arg(int i)
1401 {
1402 if (i >= semihosting.argc) {
1403 return NULL;
1404 }
1405 return semihosting.argv[i];
1406 }
1407
1408 int semihosting_get_argc(void)
1409 {
1410 return semihosting.argc;
1411 }
1412
1413 const char *semihosting_get_cmdline(void)
1414 {
1415 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1416 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1417 }
1418 return semihosting.cmdline;
1419 }
1420
1421 static int add_semihosting_arg(void *opaque,
1422 const char *name, const char *val,
1423 Error **errp)
1424 {
1425 SemihostingConfig *s = opaque;
1426 if (strcmp(name, "arg") == 0) {
1427 s->argc++;
1428 /* one extra element as g_strjoinv() expects NULL-terminated array */
1429 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1430 s->argv[s->argc - 1] = val;
1431 s->argv[s->argc] = NULL;
1432 }
1433 return 0;
1434 }
1435
1436 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1437 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1438 {
1439 char *cmd_token;
1440
1441 /* argv[0] */
1442 add_semihosting_arg(&semihosting, "arg", file, NULL);
1443
1444 /* split -append and initialize argv[1..n] */
1445 cmd_token = strtok(g_strdup(cmd), " ");
1446 while (cmd_token) {
1447 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1448 cmd_token = strtok(NULL, " ");
1449 }
1450 }
1451
1452 /* Now we still need this for compatibility with XEN. */
1453 bool has_igd_gfx_passthru;
1454 static void igd_gfx_passthru(void)
1455 {
1456 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1457 }
1458
1459 /***********************************************************/
1460 /* USB devices */
1461
1462 static int usb_device_add(const char *devname)
1463 {
1464 USBDevice *dev = NULL;
1465
1466 if (!machine_usb(current_machine)) {
1467 return -1;
1468 }
1469
1470 dev = usbdevice_create(devname);
1471 if (!dev)
1472 return -1;
1473
1474 return 0;
1475 }
1476
1477 static int usb_parse(const char *cmdline)
1478 {
1479 int r;
1480 r = usb_device_add(cmdline);
1481 if (r < 0) {
1482 error_report("could not add USB device '%s'", cmdline);
1483 }
1484 return r;
1485 }
1486
1487 /***********************************************************/
1488 /* machine registration */
1489
1490 MachineState *current_machine;
1491
1492 static MachineClass *find_machine(const char *name)
1493 {
1494 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1495 MachineClass *mc = NULL;
1496
1497 for (el = machines; el; el = el->next) {
1498 MachineClass *temp = el->data;
1499
1500 if (!strcmp(temp->name, name)) {
1501 mc = temp;
1502 break;
1503 }
1504 if (temp->alias &&
1505 !strcmp(temp->alias, name)) {
1506 mc = temp;
1507 break;
1508 }
1509 }
1510
1511 g_slist_free(machines);
1512 return mc;
1513 }
1514
1515 MachineClass *find_default_machine(void)
1516 {
1517 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1518 MachineClass *mc = NULL;
1519
1520 for (el = machines; el; el = el->next) {
1521 MachineClass *temp = el->data;
1522
1523 if (temp->is_default) {
1524 mc = temp;
1525 break;
1526 }
1527 }
1528
1529 g_slist_free(machines);
1530 return mc;
1531 }
1532
1533 MachineInfoList *qmp_query_machines(Error **errp)
1534 {
1535 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1536 MachineInfoList *mach_list = NULL;
1537
1538 for (el = machines; el; el = el->next) {
1539 MachineClass *mc = el->data;
1540 MachineInfoList *entry;
1541 MachineInfo *info;
1542
1543 info = g_malloc0(sizeof(*info));
1544 if (mc->is_default) {
1545 info->has_is_default = true;
1546 info->is_default = true;
1547 }
1548
1549 if (mc->alias) {
1550 info->has_alias = true;
1551 info->alias = g_strdup(mc->alias);
1552 }
1553
1554 info->name = g_strdup(mc->name);
1555 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1556 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1557
1558 entry = g_malloc0(sizeof(*entry));
1559 entry->value = info;
1560 entry->next = mach_list;
1561 mach_list = entry;
1562 }
1563
1564 g_slist_free(machines);
1565 return mach_list;
1566 }
1567
1568 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1569 {
1570 ObjectProperty *prop;
1571 ObjectPropertyIterator iter;
1572
1573 if (!qemu_opt_has_help_opt(opts)) {
1574 return 0;
1575 }
1576
1577 object_property_iter_init(&iter, OBJECT(machine));
1578 while ((prop = object_property_iter_next(&iter))) {
1579 if (!prop->set) {
1580 continue;
1581 }
1582
1583 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1584 prop->name, prop->type);
1585 if (prop->description) {
1586 error_printf(" (%s)\n", prop->description);
1587 } else {
1588 error_printf("\n");
1589 }
1590 }
1591
1592 return 1;
1593 }
1594
1595 /***********************************************************/
1596 /* main execution loop */
1597
1598 struct vm_change_state_entry {
1599 VMChangeStateHandler *cb;
1600 void *opaque;
1601 QLIST_ENTRY (vm_change_state_entry) entries;
1602 };
1603
1604 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1605
1606 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1607 void *opaque)
1608 {
1609 VMChangeStateEntry *e;
1610
1611 e = g_malloc0(sizeof (*e));
1612
1613 e->cb = cb;
1614 e->opaque = opaque;
1615 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1616 return e;
1617 }
1618
1619 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1620 {
1621 QLIST_REMOVE (e, entries);
1622 g_free (e);
1623 }
1624
1625 void vm_state_notify(int running, RunState state)
1626 {
1627 VMChangeStateEntry *e, *next;
1628
1629 trace_vm_state_notify(running, state);
1630
1631 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1632 e->cb(e->opaque, running, state);
1633 }
1634 }
1635
1636 static ShutdownCause reset_requested;
1637 static ShutdownCause shutdown_requested;
1638 static int shutdown_signal;
1639 static pid_t shutdown_pid;
1640 static int powerdown_requested;
1641 static int debug_requested;
1642 static int suspend_requested;
1643 static WakeupReason wakeup_reason;
1644 static NotifierList powerdown_notifiers =
1645 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1646 static NotifierList suspend_notifiers =
1647 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1648 static NotifierList wakeup_notifiers =
1649 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1650 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1651
1652 ShutdownCause qemu_shutdown_requested_get(void)
1653 {
1654 return shutdown_requested;
1655 }
1656
1657 ShutdownCause qemu_reset_requested_get(void)
1658 {
1659 return reset_requested;
1660 }
1661
1662 static int qemu_shutdown_requested(void)
1663 {
1664 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1665 }
1666
1667 static void qemu_kill_report(void)
1668 {
1669 if (!qtest_driver() && shutdown_signal) {
1670 if (shutdown_pid == 0) {
1671 /* This happens for eg ^C at the terminal, so it's worth
1672 * avoiding printing an odd message in that case.
1673 */
1674 error_report("terminating on signal %d", shutdown_signal);
1675 } else {
1676 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1677
1678 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1679 shutdown_signal, shutdown_pid,
1680 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1681 g_free(shutdown_cmd);
1682 }
1683 shutdown_signal = 0;
1684 }
1685 }
1686
1687 static ShutdownCause qemu_reset_requested(void)
1688 {
1689 ShutdownCause r = reset_requested;
1690
1691 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1692 reset_requested = SHUTDOWN_CAUSE_NONE;
1693 return r;
1694 }
1695 return SHUTDOWN_CAUSE_NONE;
1696 }
1697
1698 static int qemu_suspend_requested(void)
1699 {
1700 int r = suspend_requested;
1701 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1702 suspend_requested = 0;
1703 return r;
1704 }
1705 return false;
1706 }
1707
1708 static WakeupReason qemu_wakeup_requested(void)
1709 {
1710 return wakeup_reason;
1711 }
1712
1713 static int qemu_powerdown_requested(void)
1714 {
1715 int r = powerdown_requested;
1716 powerdown_requested = 0;
1717 return r;
1718 }
1719
1720 static int qemu_debug_requested(void)
1721 {
1722 int r = debug_requested;
1723 debug_requested = 0;
1724 return r;
1725 }
1726
1727 /*
1728 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1729 */
1730 void qemu_system_reset(ShutdownCause reason)
1731 {
1732 MachineClass *mc;
1733
1734 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1735
1736 cpu_synchronize_all_states();
1737
1738 if (mc && mc->reset) {
1739 mc->reset();
1740 } else {
1741 qemu_devices_reset();
1742 }
1743 if (reason) {
1744 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1745 &error_abort);
1746 }
1747 cpu_synchronize_all_post_reset();
1748 }
1749
1750 void qemu_system_guest_panicked(GuestPanicInformation *info)
1751 {
1752 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1753
1754 if (current_cpu) {
1755 current_cpu->crash_occurred = true;
1756 }
1757 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1758 !!info, info, &error_abort);
1759 vm_stop(RUN_STATE_GUEST_PANICKED);
1760 if (!no_shutdown) {
1761 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1762 !!info, info, &error_abort);
1763 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1764 }
1765
1766 if (info) {
1767 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1768 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1769 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1770 info->u.hyper_v.arg1,
1771 info->u.hyper_v.arg2,
1772 info->u.hyper_v.arg3,
1773 info->u.hyper_v.arg4,
1774 info->u.hyper_v.arg5);
1775 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1776 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1777 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1778 info->u.s390.core,
1779 S390CrashReason_str(info->u.s390.reason),
1780 info->u.s390.psw_mask,
1781 info->u.s390.psw_addr);
1782 }
1783 qapi_free_GuestPanicInformation(info);
1784 }
1785 }
1786
1787 void qemu_system_reset_request(ShutdownCause reason)
1788 {
1789 if (no_reboot) {
1790 shutdown_requested = reason;
1791 } else {
1792 reset_requested = reason;
1793 }
1794 cpu_stop_current();
1795 qemu_notify_event();
1796 }
1797
1798 static void qemu_system_suspend(void)
1799 {
1800 pause_all_vcpus();
1801 notifier_list_notify(&suspend_notifiers, NULL);
1802 runstate_set(RUN_STATE_SUSPENDED);
1803 qapi_event_send_suspend(&error_abort);
1804 }
1805
1806 void qemu_system_suspend_request(void)
1807 {
1808 if (runstate_check(RUN_STATE_SUSPENDED)) {
1809 return;
1810 }
1811 suspend_requested = 1;
1812 cpu_stop_current();
1813 qemu_notify_event();
1814 }
1815
1816 void qemu_register_suspend_notifier(Notifier *notifier)
1817 {
1818 notifier_list_add(&suspend_notifiers, notifier);
1819 }
1820
1821 void qemu_system_wakeup_request(WakeupReason reason)
1822 {
1823 trace_system_wakeup_request(reason);
1824
1825 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1826 return;
1827 }
1828 if (!(wakeup_reason_mask & (1 << reason))) {
1829 return;
1830 }
1831 runstate_set(RUN_STATE_RUNNING);
1832 wakeup_reason = reason;
1833 qemu_notify_event();
1834 }
1835
1836 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1837 {
1838 if (enabled) {
1839 wakeup_reason_mask |= (1 << reason);
1840 } else {
1841 wakeup_reason_mask &= ~(1 << reason);
1842 }
1843 }
1844
1845 void qemu_register_wakeup_notifier(Notifier *notifier)
1846 {
1847 notifier_list_add(&wakeup_notifiers, notifier);
1848 }
1849
1850 void qemu_system_killed(int signal, pid_t pid)
1851 {
1852 shutdown_signal = signal;
1853 shutdown_pid = pid;
1854 no_shutdown = 0;
1855
1856 /* Cannot call qemu_system_shutdown_request directly because
1857 * we are in a signal handler.
1858 */
1859 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1860 qemu_notify_event();
1861 }
1862
1863 void qemu_system_shutdown_request(ShutdownCause reason)
1864 {
1865 trace_qemu_system_shutdown_request(reason);
1866 replay_shutdown_request(reason);
1867 shutdown_requested = reason;
1868 qemu_notify_event();
1869 }
1870
1871 static void qemu_system_powerdown(void)
1872 {
1873 qapi_event_send_powerdown(&error_abort);
1874 notifier_list_notify(&powerdown_notifiers, NULL);
1875 }
1876
1877 void qemu_system_powerdown_request(void)
1878 {
1879 trace_qemu_system_powerdown_request();
1880 powerdown_requested = 1;
1881 qemu_notify_event();
1882 }
1883
1884 void qemu_register_powerdown_notifier(Notifier *notifier)
1885 {
1886 notifier_list_add(&powerdown_notifiers, notifier);
1887 }
1888
1889 void qemu_system_debug_request(void)
1890 {
1891 debug_requested = 1;
1892 qemu_notify_event();
1893 }
1894
1895 static bool main_loop_should_exit(void)
1896 {
1897 RunState r;
1898 ShutdownCause request;
1899
1900 if (qemu_debug_requested()) {
1901 vm_stop(RUN_STATE_DEBUG);
1902 }
1903 if (qemu_suspend_requested()) {
1904 qemu_system_suspend();
1905 }
1906 request = qemu_shutdown_requested();
1907 if (request) {
1908 qemu_kill_report();
1909 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1910 &error_abort);
1911 if (no_shutdown) {
1912 vm_stop(RUN_STATE_SHUTDOWN);
1913 } else {
1914 return true;
1915 }
1916 }
1917 request = qemu_reset_requested();
1918 if (request) {
1919 pause_all_vcpus();
1920 qemu_system_reset(request);
1921 resume_all_vcpus();
1922 if (!runstate_check(RUN_STATE_RUNNING) &&
1923 !runstate_check(RUN_STATE_INMIGRATE)) {
1924 runstate_set(RUN_STATE_PRELAUNCH);
1925 }
1926 }
1927 if (qemu_wakeup_requested()) {
1928 pause_all_vcpus();
1929 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1930 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1931 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1932 resume_all_vcpus();
1933 qapi_event_send_wakeup(&error_abort);
1934 }
1935 if (qemu_powerdown_requested()) {
1936 qemu_system_powerdown();
1937 }
1938 if (qemu_vmstop_requested(&r)) {
1939 vm_stop(r);
1940 }
1941 return false;
1942 }
1943
1944 static void main_loop(void)
1945 {
1946 #ifdef CONFIG_PROFILER
1947 int64_t ti;
1948 #endif
1949 do {
1950 #ifdef CONFIG_PROFILER
1951 ti = profile_getclock();
1952 #endif
1953 main_loop_wait(false);
1954 #ifdef CONFIG_PROFILER
1955 dev_time += profile_getclock() - ti;
1956 #endif
1957 } while (!main_loop_should_exit());
1958 }
1959
1960 static void version(void)
1961 {
1962 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1963 QEMU_COPYRIGHT "\n");
1964 }
1965
1966 static void QEMU_NORETURN help(int exitcode)
1967 {
1968 version();
1969 printf("usage: %s [options] [disk_image]\n\n"
1970 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1971 error_get_progname());
1972
1973 #define QEMU_OPTIONS_GENERATE_HELP
1974 #include "qemu-options-wrapper.h"
1975
1976 printf("\nDuring emulation, the following keys are useful:\n"
1977 "ctrl-alt-f toggle full screen\n"
1978 "ctrl-alt-n switch to virtual console 'n'\n"
1979 "ctrl-alt toggle mouse and keyboard grab\n"
1980 "\n"
1981 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1982 "\n"
1983 QEMU_HELP_BOTTOM "\n");
1984
1985 exit(exitcode);
1986 }
1987
1988 #define HAS_ARG 0x0001
1989
1990 typedef struct QEMUOption {
1991 const char *name;
1992 int flags;
1993 int index;
1994 uint32_t arch_mask;
1995 } QEMUOption;
1996
1997 static const QEMUOption qemu_options[] = {
1998 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1999 #define QEMU_OPTIONS_GENERATE_OPTIONS
2000 #include "qemu-options-wrapper.h"
2001 { NULL },
2002 };
2003
2004 typedef struct VGAInterfaceInfo {
2005 const char *opt_name; /* option name */
2006 const char *name; /* human-readable name */
2007 /* Class names indicating that support is available.
2008 * If no class is specified, the interface is always available */
2009 const char *class_names[2];
2010 } VGAInterfaceInfo;
2011
2012 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2013 [VGA_NONE] = {
2014 .opt_name = "none",
2015 },
2016 [VGA_STD] = {
2017 .opt_name = "std",
2018 .name = "standard VGA",
2019 .class_names = { "VGA", "isa-vga" },
2020 },
2021 [VGA_CIRRUS] = {
2022 .opt_name = "cirrus",
2023 .name = "Cirrus VGA",
2024 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2025 },
2026 [VGA_VMWARE] = {
2027 .opt_name = "vmware",
2028 .name = "VMWare SVGA",
2029 .class_names = { "vmware-svga" },
2030 },
2031 [VGA_VIRTIO] = {
2032 .opt_name = "virtio",
2033 .name = "Virtio VGA",
2034 .class_names = { "virtio-vga" },
2035 },
2036 [VGA_QXL] = {
2037 .opt_name = "qxl",
2038 .name = "QXL VGA",
2039 .class_names = { "qxl-vga" },
2040 },
2041 [VGA_TCX] = {
2042 .opt_name = "tcx",
2043 .name = "TCX framebuffer",
2044 .class_names = { "SUNW,tcx" },
2045 },
2046 [VGA_CG3] = {
2047 .opt_name = "cg3",
2048 .name = "CG3 framebuffer",
2049 .class_names = { "cgthree" },
2050 },
2051 [VGA_XENFB] = {
2052 .opt_name = "xenfb",
2053 },
2054 };
2055
2056 static bool vga_interface_available(VGAInterfaceType t)
2057 {
2058 VGAInterfaceInfo *ti = &vga_interfaces[t];
2059
2060 assert(t < VGA_TYPE_MAX);
2061 return !ti->class_names[0] ||
2062 object_class_by_name(ti->class_names[0]) ||
2063 object_class_by_name(ti->class_names[1]);
2064 }
2065
2066 static void select_vgahw(const char *p)
2067 {
2068 const char *opts;
2069 int t;
2070
2071 assert(vga_interface_type == VGA_NONE);
2072 for (t = 0; t < VGA_TYPE_MAX; t++) {
2073 VGAInterfaceInfo *ti = &vga_interfaces[t];
2074 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2075 if (!vga_interface_available(t)) {
2076 error_report("%s not available", ti->name);
2077 exit(1);
2078 }
2079 vga_interface_type = t;
2080 break;
2081 }
2082 }
2083 if (t == VGA_TYPE_MAX) {
2084 invalid_vga:
2085 error_report("unknown vga type: %s", p);
2086 exit(1);
2087 }
2088 while (*opts) {
2089 const char *nextopt;
2090
2091 if (strstart(opts, ",retrace=", &nextopt)) {
2092 opts = nextopt;
2093 if (strstart(opts, "dumb", &nextopt))
2094 vga_retrace_method = VGA_RETRACE_DUMB;
2095 else if (strstart(opts, "precise", &nextopt))
2096 vga_retrace_method = VGA_RETRACE_PRECISE;
2097 else goto invalid_vga;
2098 } else goto invalid_vga;
2099 opts = nextopt;
2100 }
2101 }
2102
2103 static void parse_display(const char *p)
2104 {
2105 const char *opts;
2106
2107 if (strstart(p, "sdl", &opts)) {
2108 dpy.type = DISPLAY_TYPE_SDL;
2109 while (*opts) {
2110 const char *nextopt;
2111
2112 if (strstart(opts, ",frame=", &nextopt)) {
2113 g_printerr("The frame= sdl option is deprecated, and will be\n"
2114 "removed in a future release.\n");
2115 opts = nextopt;
2116 if (strstart(opts, "on", &nextopt)) {
2117 no_frame = 0;
2118 } else if (strstart(opts, "off", &nextopt)) {
2119 no_frame = 1;
2120 } else {
2121 goto invalid_sdl_args;
2122 }
2123 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2124 opts = nextopt;
2125 if (strstart(opts, "on", &nextopt)) {
2126 alt_grab = 1;
2127 } else if (strstart(opts, "off", &nextopt)) {
2128 alt_grab = 0;
2129 } else {
2130 goto invalid_sdl_args;
2131 }
2132 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2133 opts = nextopt;
2134 if (strstart(opts, "on", &nextopt)) {
2135 ctrl_grab = 1;
2136 } else if (strstart(opts, "off", &nextopt)) {
2137 ctrl_grab = 0;
2138 } else {
2139 goto invalid_sdl_args;
2140 }
2141 } else if (strstart(opts, ",window_close=", &nextopt)) {
2142 opts = nextopt;
2143 dpy.has_window_close = true;
2144 if (strstart(opts, "on", &nextopt)) {
2145 dpy.window_close = true;
2146 } else if (strstart(opts, "off", &nextopt)) {
2147 dpy.window_close = false;
2148 } else {
2149 goto invalid_sdl_args;
2150 }
2151 } else if (strstart(opts, ",gl=", &nextopt)) {
2152 opts = nextopt;
2153 dpy.has_gl = true;
2154 if (strstart(opts, "on", &nextopt)) {
2155 dpy.gl = true;
2156 } else if (strstart(opts, "off", &nextopt)) {
2157 dpy.gl = false;
2158 } else {
2159 goto invalid_sdl_args;
2160 }
2161 } else {
2162 invalid_sdl_args:
2163 error_report("invalid SDL option string");
2164 exit(1);
2165 }
2166 opts = nextopt;
2167 }
2168 } else if (strstart(p, "vnc", &opts)) {
2169 if (*opts == '=') {
2170 vnc_parse(opts + 1, &error_fatal);
2171 } else {
2172 error_report("VNC requires a display argument vnc=<display>");
2173 exit(1);
2174 }
2175 } else if (strstart(p, "egl-headless", &opts)) {
2176 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2177 } else if (strstart(p, "curses", &opts)) {
2178 dpy.type = DISPLAY_TYPE_CURSES;
2179 } else if (strstart(p, "gtk", &opts)) {
2180 dpy.type = DISPLAY_TYPE_GTK;
2181 while (*opts) {
2182 const char *nextopt;
2183
2184 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2185 opts = nextopt;
2186 dpy.u.gtk.has_grab_on_hover = true;
2187 if (strstart(opts, "on", &nextopt)) {
2188 dpy.u.gtk.grab_on_hover = true;
2189 } else if (strstart(opts, "off", &nextopt)) {
2190 dpy.u.gtk.grab_on_hover = false;
2191 } else {
2192 goto invalid_gtk_args;
2193 }
2194 } else if (strstart(opts, ",gl=", &nextopt)) {
2195 opts = nextopt;
2196 dpy.has_gl = true;
2197 if (strstart(opts, "on", &nextopt)) {
2198 dpy.gl = true;
2199 } else if (strstart(opts, "off", &nextopt)) {
2200 dpy.gl = false;
2201 } else {
2202 goto invalid_gtk_args;
2203 }
2204 } else {
2205 invalid_gtk_args:
2206 error_report("invalid GTK option string");
2207 exit(1);
2208 }
2209 opts = nextopt;
2210 }
2211 } else if (strstart(p, "none", &opts)) {
2212 dpy.type = DISPLAY_TYPE_NONE;
2213 } else {
2214 error_report("unknown display type");
2215 exit(1);
2216 }
2217 }
2218
2219 static int balloon_parse(const char *arg)
2220 {
2221 QemuOpts *opts;
2222
2223 warn_report("This option is deprecated. "
2224 "Use '--device virtio-balloon' to enable the balloon device.");
2225
2226 if (strcmp(arg, "none") == 0) {
2227 return 0;
2228 }
2229
2230 if (!strncmp(arg, "virtio", 6)) {
2231 if (arg[6] == ',') {
2232 /* have params -> parse them */
2233 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2234 false);
2235 if (!opts)
2236 return -1;
2237 } else {
2238 /* create empty opts */
2239 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2240 &error_abort);
2241 }
2242 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2243 return 0;
2244 }
2245
2246 return -1;
2247 }
2248
2249 #if defined(CONFIG_RUBY)
2250 /* Ruby interface for QEMU. See README.EXT for programming example. */
2251 #warning mit ruby
2252 #include <ruby.h>
2253
2254 static VALUE qemu_open(int argc, VALUE *argv, VALUE klass)
2255 {
2256 int i;
2257 for (i = 0; i < argc; i++) {
2258 argv[i] = StringValue(argv[i]);
2259 fprintf(stderr, "argv[%d] = %s\n", i, StringValuePtr(argv[i]));
2260 }
2261 //~ if (rb_scan_args(argc, argv, "11", &file, &vmode) == 1) {
2262 //~ mode = 0666; /* default value */
2263 //~ }
2264 return INT2FIX(argc);
2265 }
2266
2267 void Init_qemu(void)
2268 {
2269 printf("%s\n", __func__);
2270 VALUE cQEMU = rb_define_class("QEMU", rb_cObject);
2271 rb_define_singleton_method(cQEMU, "run", qemu_open, -1);
2272 #if 0
2273 rb_define_method();
2274 #endif
2275 }
2276 #endif /* CONFIG_RUBY */
2277
2278 #if defined(CONFIG_DLL)
2279 BOOL APIENTRY DllMain(HINSTANCE hModule, DWORD ul_reason_for_call, LPVOID data)
2280 {
2281 return FALSE;
2282 }
2283 #endif /* CONFIG_DLL */
2284
2285 char *qemu_find_file(int type, const char *name)
2286 {
2287 int i;
2288 const char *subdir;
2289 char *buf;
2290
2291 /* Try the name as a straight path first */
2292 if (access(name, R_OK) == 0) {
2293 trace_load_file(name, name);
2294 return g_strdup(name);
2295 }
2296
2297 switch (type) {
2298 case QEMU_FILE_TYPE_BIOS:
2299 subdir = "";
2300 break;
2301 case QEMU_FILE_TYPE_KEYMAP:
2302 subdir = "keymaps/";
2303 break;
2304 default:
2305 abort();
2306 }
2307
2308 for (i = 0; i < data_dir_idx; i++) {
2309 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2310 if (access(buf, R_OK) == 0) {
2311 trace_load_file(name, buf);
2312 return buf;
2313 }
2314 g_free(buf);
2315 }
2316 return NULL;
2317 }
2318
2319 static void qemu_add_data_dir(const char *path)
2320 {
2321 int i;
2322
2323 if (path == NULL) {
2324 return;
2325 }
2326 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2327 return;
2328 }
2329 for (i = 0; i < data_dir_idx; i++) {
2330 if (strcmp(data_dir[i], path) == 0) {
2331 return; /* duplicate */
2332 }
2333 }
2334 data_dir[data_dir_idx++] = g_strdup(path);
2335 }
2336
2337 static inline bool nonempty_str(const char *str)
2338 {
2339 return str && *str;
2340 }
2341
2342 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2343 {
2344 gchar *buf;
2345 size_t size;
2346 const char *name, *file, *str;
2347 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2348
2349 if (fw_cfg == NULL) {
2350 error_report("fw_cfg device not available");
2351 return -1;
2352 }
2353 name = qemu_opt_get(opts, "name");
2354 file = qemu_opt_get(opts, "file");
2355 str = qemu_opt_get(opts, "string");
2356
2357 /* we need name and either a file or the content string */
2358 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2359 error_report("invalid argument(s)");
2360 return -1;
2361 }
2362 if (nonempty_str(file) && nonempty_str(str)) {
2363 error_report("file and string are mutually exclusive");
2364 return -1;
2365 }
2366 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2367 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2368 return -1;
2369 }
2370 if (strncmp(name, "opt/", 4) != 0) {
2371 warn_report("externally provided fw_cfg item names "
2372 "should be prefixed with \"opt/\"");
2373 }
2374 if (nonempty_str(str)) {
2375 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2376 buf = g_memdup(str, size);
2377 } else {
2378 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2379 error_report("can't load %s", file);
2380 return -1;
2381 }
2382 }
2383 /* For legacy, keep user files in a specific global order. */
2384 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2385 fw_cfg_add_file(fw_cfg, name, buf, size);
2386 fw_cfg_reset_order_override(fw_cfg);
2387 return 0;
2388 }
2389
2390 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2391 {
2392 return qdev_device_help(opts);
2393 }
2394
2395 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2396 {
2397 Error *err = NULL;
2398 DeviceState *dev;
2399
2400 dev = qdev_device_add(opts, &err);
2401 if (!dev) {
2402 error_report_err(err);
2403 return -1;
2404 }
2405 object_unref(OBJECT(dev));
2406 return 0;
2407 }
2408
2409 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2410 {
2411 Error *local_err = NULL;
2412
2413 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2414 if (local_err) {
2415 error_report_err(local_err);
2416 return -1;
2417 }
2418 exit(0);
2419 }
2420 return 0;
2421 }
2422
2423 #ifdef CONFIG_VIRTFS
2424 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2425 {
2426 return qemu_fsdev_add(opts);
2427 }
2428 #endif
2429
2430 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2431 {
2432 Chardev *chr;
2433 const char *chardev;
2434 const char *mode;
2435 int flags;
2436
2437 mode = qemu_opt_get(opts, "mode");
2438 if (mode == NULL) {
2439 mode = "readline";
2440 }
2441 if (strcmp(mode, "readline") == 0) {
2442 flags = MONITOR_USE_READLINE;
2443 } else if (strcmp(mode, "control") == 0) {
2444 flags = MONITOR_USE_CONTROL;
2445 } else {
2446 error_report("unknown monitor mode \"%s\"", mode);
2447 exit(1);
2448 }
2449
2450 if (qemu_opt_get_bool(opts, "pretty", 0))
2451 flags |= MONITOR_USE_PRETTY;
2452
2453 chardev = qemu_opt_get(opts, "chardev");
2454 chr = qemu_chr_find(chardev);
2455 if (chr == NULL) {
2456 error_report("chardev \"%s\" not found", chardev);
2457 exit(1);
2458 }
2459
2460 monitor_init(chr, flags);
2461 return 0;
2462 }
2463
2464 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2465 {
2466 static int monitor_device_index = 0;
2467 QemuOpts *opts;
2468 const char *p;
2469 char label[32];
2470
2471 if (strstart(optarg, "chardev:", &p)) {
2472 snprintf(label, sizeof(label), "%s", p);
2473 } else {
2474 snprintf(label, sizeof(label), "compat_monitor%d",
2475 monitor_device_index);
2476 opts = qemu_chr_parse_compat(label, optarg);
2477 if (!opts) {
2478 error_report("parse error: %s", optarg);
2479 exit(1);
2480 }
2481 }
2482
2483 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2484 qemu_opt_set(opts, "mode", mode, &error_abort);
2485 qemu_opt_set(opts, "chardev", label, &error_abort);
2486 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2487 monitor_device_index++;
2488 }
2489
2490 struct device_config {
2491 enum {
2492 DEV_USB, /* -usbdevice */
2493 DEV_BT, /* -bt */
2494 DEV_SERIAL, /* -serial */
2495 DEV_PARALLEL, /* -parallel */
2496 DEV_VIRTCON, /* -virtioconsole */
2497 DEV_DEBUGCON, /* -debugcon */
2498 DEV_GDB, /* -gdb, -s */
2499 DEV_SCLP, /* s390 sclp */
2500 } type;
2501 const char *cmdline;
2502 Location loc;
2503 QTAILQ_ENTRY(device_config) next;
2504 };
2505
2506 static QTAILQ_HEAD(, device_config) device_configs =
2507 QTAILQ_HEAD_INITIALIZER(device_configs);
2508
2509 static void add_device_config(int type, const char *cmdline)
2510 {
2511 struct device_config *conf;
2512
2513 conf = g_malloc0(sizeof(*conf));
2514 conf->type = type;
2515 conf->cmdline = cmdline;
2516 loc_save(&conf->loc);
2517 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2518 }
2519
2520 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2521 {
2522 struct device_config *conf;
2523 int rc;
2524
2525 QTAILQ_FOREACH(conf, &device_configs, next) {
2526 if (conf->type != type)
2527 continue;
2528 loc_push_restore(&conf->loc);
2529 rc = func(conf->cmdline);
2530 loc_pop(&conf->loc);
2531 if (rc) {
2532 return rc;
2533 }
2534 }
2535 return 0;
2536 }
2537
2538 static int serial_parse(const char *devname)
2539 {
2540 static int index = 0;
2541 char label[32];
2542
2543 if (strcmp(devname, "none") == 0)
2544 return 0;
2545 if (index == MAX_SERIAL_PORTS) {
2546 error_report("too many serial ports");
2547 exit(1);
2548 }
2549 snprintf(label, sizeof(label), "serial%d", index);
2550 serial_hds[index] = qemu_chr_new(label, devname);
2551 if (!serial_hds[index]) {
2552 error_report("could not connect serial device"
2553 " to character backend '%s'", devname);
2554 return -1;
2555 }
2556 index++;
2557 return 0;
2558 }
2559
2560 static int parallel_parse(const char *devname)
2561 {
2562 static int index = 0;
2563 char label[32];
2564
2565 if (strcmp(devname, "none") == 0)
2566 return 0;
2567 if (index == MAX_PARALLEL_PORTS) {
2568 error_report("too many parallel ports");
2569 exit(1);
2570 }
2571 snprintf(label, sizeof(label), "parallel%d", index);
2572 parallel_hds[index] = qemu_chr_new(label, devname);
2573 if (!parallel_hds[index]) {
2574 error_report("could not connect parallel device"
2575 " to character backend '%s'", devname);
2576 return -1;
2577 }
2578 index++;
2579 return 0;
2580 }
2581
2582 static int virtcon_parse(const char *devname)
2583 {
2584 QemuOptsList *device = qemu_find_opts("device");
2585 static int index = 0;
2586 char label[32];
2587 QemuOpts *bus_opts, *dev_opts;
2588
2589 if (strcmp(devname, "none") == 0)
2590 return 0;
2591 if (index == MAX_VIRTIO_CONSOLES) {
2592 error_report("too many virtio consoles");
2593 exit(1);
2594 }
2595
2596 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2597 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2598
2599 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2600 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2601
2602 snprintf(label, sizeof(label), "virtcon%d", index);
2603 virtcon_hds[index] = qemu_chr_new(label, devname);
2604 if (!virtcon_hds[index]) {
2605 error_report("could not connect virtio console"
2606 " to character backend '%s'", devname);
2607 return -1;
2608 }
2609 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2610
2611 index++;
2612 return 0;
2613 }
2614
2615 static int sclp_parse(const char *devname)
2616 {
2617 QemuOptsList *device = qemu_find_opts("device");
2618 static int index = 0;
2619 char label[32];
2620 QemuOpts *dev_opts;
2621
2622 if (strcmp(devname, "none") == 0) {
2623 return 0;
2624 }
2625 if (index == MAX_SCLP_CONSOLES) {
2626 error_report("too many sclp consoles");
2627 exit(1);
2628 }
2629
2630 assert(arch_type == QEMU_ARCH_S390X);
2631
2632 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2633 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2634
2635 snprintf(label, sizeof(label), "sclpcon%d", index);
2636 sclp_hds[index] = qemu_chr_new(label, devname);
2637 if (!sclp_hds[index]) {
2638 error_report("could not connect sclp console"
2639 " to character backend '%s'", devname);
2640 return -1;
2641 }
2642 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2643
2644 index++;
2645 return 0;
2646 }
2647
2648 static int debugcon_parse(const char *devname)
2649 {
2650 QemuOpts *opts;
2651
2652 if (!qemu_chr_new("debugcon", devname)) {
2653 exit(1);
2654 }
2655 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2656 if (!opts) {
2657 error_report("already have a debugcon device");
2658 exit(1);
2659 }
2660 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2661 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2662 return 0;
2663 }
2664
2665 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2666 {
2667 const MachineClass *mc1 = a, *mc2 = b;
2668 int res;
2669
2670 if (mc1->family == NULL) {
2671 if (mc2->family == NULL) {
2672 /* Compare standalone machine types against each other; they sort
2673 * in increasing order.
2674 */
2675 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2676 object_class_get_name(OBJECT_CLASS(mc2)));
2677 }
2678
2679 /* Standalone machine types sort after families. */
2680 return 1;
2681 }
2682
2683 if (mc2->family == NULL) {
2684 /* Families sort before standalone machine types. */
2685 return -1;
2686 }
2687
2688 /* Families sort between each other alphabetically increasingly. */
2689 res = strcmp(mc1->family, mc2->family);
2690 if (res != 0) {
2691 return res;
2692 }
2693
2694 /* Within the same family, machine types sort in decreasing order. */
2695 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2696 object_class_get_name(OBJECT_CLASS(mc1)));
2697 }
2698
2699 static MachineClass *machine_parse(const char *name)
2700 {
2701 MachineClass *mc = NULL;
2702 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2703
2704 if (name) {
2705 mc = find_machine(name);
2706 }
2707 if (mc) {
2708 g_slist_free(machines);
2709 return mc;
2710 }
2711 if (name && !is_help_option(name)) {
2712 error_report("unsupported machine type");
2713 error_printf("Use -machine help to list supported machines\n");
2714 } else {
2715 printf("Supported machines are:\n");
2716 machines = g_slist_sort(machines, machine_class_cmp);
2717 for (el = machines; el; el = el->next) {
2718 MachineClass *mc = el->data;
2719 if (mc->alias) {
2720 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2721 }
2722 printf("%-20s %s%s\n", mc->name, mc->desc,
2723 mc->is_default ? " (default)" : "");
2724 }
2725 }
2726
2727 g_slist_free(machines);
2728 exit(!name || !is_help_option(name));
2729 }
2730
2731 void qemu_add_exit_notifier(Notifier *notify)
2732 {
2733 notifier_list_add(&exit_notifiers, notify);
2734 }
2735
2736 void qemu_remove_exit_notifier(Notifier *notify)
2737 {
2738 notifier_remove(notify);
2739 }
2740
2741 static void qemu_run_exit_notifiers(void)
2742 {
2743 notifier_list_notify(&exit_notifiers, NULL);
2744 }
2745
2746 bool machine_init_done;
2747
2748 void qemu_add_machine_init_done_notifier(Notifier *notify)
2749 {
2750 notifier_list_add(&machine_init_done_notifiers, notify);
2751 if (machine_init_done) {
2752 notify->notify(notify, NULL);
2753 }
2754 }
2755
2756 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2757 {
2758 notifier_remove(notify);
2759 }
2760
2761 static void qemu_run_machine_init_done_notifiers(void)
2762 {
2763 machine_init_done = true;
2764 notifier_list_notify(&machine_init_done_notifiers, NULL);
2765 }
2766
2767 static const QEMUOption *lookup_opt(int argc, char **argv,
2768 const char **poptarg, int *poptind)
2769 {
2770 const QEMUOption *popt;
2771 int optind = *poptind;
2772 char *r = argv[optind];
2773 const char *optarg;
2774
2775 loc_set_cmdline(argv, optind, 1);
2776 optind++;
2777 /* Treat --foo the same as -foo. */
2778 if (r[1] == '-')
2779 r++;
2780 popt = qemu_options;
2781 for(;;) {
2782 if (!popt->name) {
2783 error_report("invalid option");
2784 exit(1);
2785 }
2786 if (!strcmp(popt->name, r + 1))
2787 break;
2788 popt++;
2789 }
2790 if (popt->flags & HAS_ARG) {
2791 if (optind >= argc) {
2792 error_report("requires an argument");
2793 exit(1);
2794 }
2795 optarg = argv[optind++];
2796 loc_set_cmdline(argv, optind - 2, 2);
2797 } else {
2798 optarg = NULL;
2799 }
2800
2801 *poptarg = optarg;
2802 *poptind = optind;
2803
2804 return popt;
2805 }
2806
2807 static MachineClass *select_machine(void)
2808 {
2809 MachineClass *machine_class = find_default_machine();
2810 const char *optarg;
2811 QemuOpts *opts;
2812 Location loc;
2813
2814 loc_push_none(&loc);
2815
2816 opts = qemu_get_machine_opts();
2817 qemu_opts_loc_restore(opts);
2818
2819 optarg = qemu_opt_get(opts, "type");
2820 if (optarg) {
2821 machine_class = machine_parse(optarg);
2822 }
2823
2824 if (!machine_class) {
2825 error_report("No machine specified, and there is no default");
2826 error_printf("Use -machine help to list supported machines\n");
2827 exit(1);
2828 }
2829
2830 loc_pop(&loc);
2831 return machine_class;
2832 }
2833
2834 static int machine_set_property(void *opaque,
2835 const char *name, const char *value,
2836 Error **errp)
2837 {
2838 Object *obj = OBJECT(opaque);
2839 Error *local_err = NULL;
2840 char *p, *qom_name;
2841
2842 if (strcmp(name, "type") == 0) {
2843 return 0;
2844 }
2845
2846 qom_name = g_strdup(name);
2847 for (p = qom_name; *p; p++) {
2848 if (*p == '_') {
2849 *p = '-';
2850 }
2851 }
2852
2853 object_property_parse(obj, value, qom_name, &local_err);
2854 g_free(qom_name);
2855
2856 if (local_err) {
2857 error_report_err(local_err);
2858 return -1;
2859 }
2860
2861 return 0;
2862 }
2863
2864
2865 /*
2866 * Initial object creation happens before all other
2867 * QEMU data types are created. The majority of objects
2868 * can be created at this point. The rng-egd object
2869 * cannot be created here, as it depends on the chardev
2870 * already existing.
2871 */
2872 static bool object_create_initial(const char *type)
2873 {
2874 if (g_str_equal(type, "rng-egd") ||
2875 g_str_has_prefix(type, "pr-manager-")) {
2876 return false;
2877 }
2878
2879 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2880 if (g_str_equal(type, "cryptodev-vhost-user")) {
2881 return false;
2882 }
2883 #endif
2884
2885 /*
2886 * return false for concrete netfilters since
2887 * they depend on netdevs already existing
2888 */
2889 if (g_str_equal(type, "filter-buffer") ||
2890 g_str_equal(type, "filter-dump") ||
2891 g_str_equal(type, "filter-mirror") ||
2892 g_str_equal(type, "filter-redirector") ||
2893 g_str_equal(type, "colo-compare") ||
2894 g_str_equal(type, "filter-rewriter") ||
2895 g_str_equal(type, "filter-replay")) {
2896 return false;
2897 }
2898
2899 /* Memory allocation by backends needs to be done
2900 * after configure_accelerator() (due to the tcg_enabled()
2901 * checks at memory_region_init_*()).
2902 *
2903 * Also, allocation of large amounts of memory may delay
2904 * chardev initialization for too long, and trigger timeouts
2905 * on software that waits for a monitor socket to be created
2906 * (e.g. libvirt).
2907 */
2908 if (g_str_has_prefix(type, "memory-backend-")) {
2909 return false;
2910 }
2911
2912 return true;
2913 }
2914
2915
2916 /*
2917 * The remainder of object creation happens after the
2918 * creation of chardev, fsdev, net clients and device data types.
2919 */
2920 static bool object_create_delayed(const char *type)
2921 {
2922 return !object_create_initial(type);
2923 }
2924
2925
2926 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2927 MachineClass *mc)
2928 {
2929 uint64_t sz;
2930 const char *mem_str;
2931 const char *maxmem_str, *slots_str;
2932 const ram_addr_t default_ram_size = mc->default_ram_size;
2933 QemuOpts *opts = qemu_find_opts_singleton("memory");
2934 Location loc;
2935
2936 loc_push_none(&loc);
2937 qemu_opts_loc_restore(opts);
2938
2939 sz = 0;
2940 mem_str = qemu_opt_get(opts, "size");
2941 if (mem_str) {
2942 if (!*mem_str) {
2943 error_report("missing 'size' option value");
2944 exit(EXIT_FAILURE);
2945 }
2946
2947 sz = qemu_opt_get_size(opts, "size", ram_size);
2948
2949 /* Fix up legacy suffix-less format */
2950 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2951 uint64_t overflow_check = sz;
2952
2953 sz <<= 20;
2954 if ((sz >> 20) != overflow_check) {
2955 error_report("too large 'size' option value");
2956 exit(EXIT_FAILURE);
2957 }
2958 }
2959 }
2960
2961 /* backward compatibility behaviour for case "-m 0" */
2962 if (sz == 0) {
2963 sz = default_ram_size;
2964 }
2965
2966 sz = QEMU_ALIGN_UP(sz, 8192);
2967 ram_size = sz;
2968 if (ram_size != sz) {
2969 error_report("ram size too large");
2970 exit(EXIT_FAILURE);
2971 }
2972
2973 /* store value for the future use */
2974 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2975 *maxram_size = ram_size;
2976
2977 maxmem_str = qemu_opt_get(opts, "maxmem");
2978 slots_str = qemu_opt_get(opts, "slots");
2979 if (maxmem_str && slots_str) {
2980 uint64_t slots;
2981
2982 sz = qemu_opt_get_size(opts, "maxmem", 0);
2983 slots = qemu_opt_get_number(opts, "slots", 0);
2984 if (sz < ram_size) {
2985 error_report("invalid value of -m option maxmem: "
2986 "maximum memory size (0x%" PRIx64 ") must be at least "
2987 "the initial memory size (0x" RAM_ADDR_FMT ")",
2988 sz, ram_size);
2989 exit(EXIT_FAILURE);
2990 } else if (sz > ram_size) {
2991 if (!slots) {
2992 error_report("invalid value of -m option: maxmem was "
2993 "specified, but no hotplug slots were specified");
2994 exit(EXIT_FAILURE);
2995 }
2996 } else if (slots) {
2997 error_report("invalid value of -m option maxmem: "
2998 "memory slots were specified but maximum memory size "
2999 "(0x%" PRIx64 ") is equal to the initial memory size "
3000 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
3001 exit(EXIT_FAILURE);
3002 }
3003
3004 *maxram_size = sz;
3005 *ram_slots = slots;
3006 } else if ((!maxmem_str && slots_str) ||
3007 (maxmem_str && !slots_str)) {
3008 error_report("invalid -m option value: missing "
3009 "'%s' option", slots_str ? "maxmem" : "slots");
3010 exit(EXIT_FAILURE);
3011 }
3012
3013 loc_pop(&loc);
3014 }
3015
3016 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
3017 {
3018 GlobalProperty *g;
3019
3020 g = g_malloc0(sizeof(*g));
3021 g->driver = qemu_opt_get(opts, "driver");
3022 g->property = qemu_opt_get(opts, "property");
3023 g->value = qemu_opt_get(opts, "value");
3024 g->user_provided = true;
3025 g->errp = &error_fatal;
3026 qdev_prop_register_global(g);
3027 return 0;
3028 }
3029
3030 static int qemu_read_default_config_file(void)
3031 {
3032 int ret;
3033
3034 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3035 if (ret < 0 && ret != -ENOENT) {
3036 return ret;
3037 }
3038
3039 return 0;
3040 }
3041
3042 static void user_register_global_props(void)
3043 {
3044 qemu_opts_foreach(qemu_find_opts("global"),
3045 global_init_func, NULL, NULL);
3046 }
3047
3048 /*
3049 * Note: we should see that these properties are actually having a
3050 * priority: accel < machine < user. This means e.g. when user
3051 * specifies something in "-global", it'll always be used with highest
3052 * priority than either machine/accelerator compat properties.
3053 */
3054 static void register_global_properties(MachineState *ms)
3055 {
3056 accel_register_compat_props(ms->accelerator);
3057 machine_register_compat_props(ms);
3058 user_register_global_props();
3059 }
3060
3061 int main(int argc, char **argv)
3062 {
3063 int i;
3064 int snapshot, linux_boot;
3065 const char *initrd_filename;
3066 const char *kernel_filename, *kernel_cmdline;
3067 const char *boot_order = NULL;
3068 const char *boot_once = NULL;
3069 DisplayState *ds;
3070 QemuOpts *opts, *machine_opts;
3071 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3072 QemuOptsList *olist;
3073 int optind;
3074 const char *optarg;
3075 const char *loadvm = NULL;
3076 MachineClass *machine_class;
3077 const char *cpu_model;
3078 const char *vga_model = NULL;
3079 const char *qtest_chrdev = NULL;
3080 const char *qtest_log = NULL;
3081 const char *pid_file = NULL;
3082 const char *incoming = NULL;
3083 bool userconfig = true;
3084 bool nographic = false;
3085 int display_remote = 0;
3086 const char *log_mask = NULL;
3087 const char *log_file = NULL;
3088 char *trace_file = NULL;
3089 ram_addr_t maxram_size;
3090 uint64_t ram_slots = 0;
3091 FILE *vmstate_dump_file = NULL;
3092 Error *main_loop_err = NULL;
3093 Error *err = NULL;
3094 bool list_data_dirs = false;
3095 char *dir, **dirs;
3096 typedef struct BlockdevOptions_queue {
3097 BlockdevOptions *bdo;
3098 Location loc;
3099 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3100 } BlockdevOptions_queue;
3101 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3102 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3103
3104 module_call_init(MODULE_INIT_TRACE);
3105
3106 qemu_init_cpu_list();
3107 qemu_init_cpu_loop();
3108
3109 qemu_mutex_lock_iothread();
3110
3111 atexit(qemu_run_exit_notifiers);
3112 error_set_progname(argv[0]);
3113 qemu_init_exec_dir(argv[0]);
3114
3115 module_call_init(MODULE_INIT_QOM);
3116
3117 qemu_add_opts(&qemu_drive_opts);
3118 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3119 qemu_add_drive_opts(&qemu_common_drive_opts);
3120 qemu_add_drive_opts(&qemu_drive_opts);
3121 qemu_add_drive_opts(&bdrv_runtime_opts);
3122 qemu_add_opts(&qemu_chardev_opts);
3123 qemu_add_opts(&qemu_device_opts);
3124 qemu_add_opts(&qemu_netdev_opts);
3125 qemu_add_opts(&qemu_nic_opts);
3126 qemu_add_opts(&qemu_net_opts);
3127 qemu_add_opts(&qemu_rtc_opts);
3128 qemu_add_opts(&qemu_global_opts);
3129 qemu_add_opts(&qemu_mon_opts);
3130 qemu_add_opts(&qemu_trace_opts);
3131 qemu_add_opts(&qemu_option_rom_opts);
3132 qemu_add_opts(&qemu_machine_opts);
3133 qemu_add_opts(&qemu_accel_opts);
3134 qemu_add_opts(&qemu_mem_opts);
3135 qemu_add_opts(&qemu_smp_opts);
3136 qemu_add_opts(&qemu_boot_opts);
3137 qemu_add_opts(&qemu_sandbox_opts);
3138 qemu_add_opts(&qemu_add_fd_opts);
3139 qemu_add_opts(&qemu_object_opts);
3140 qemu_add_opts(&qemu_tpmdev_opts);
3141 qemu_add_opts(&qemu_realtime_opts);
3142 qemu_add_opts(&qemu_msg_opts);
3143 qemu_add_opts(&qemu_name_opts);
3144 qemu_add_opts(&qemu_numa_opts);
3145 qemu_add_opts(&qemu_icount_opts);
3146 qemu_add_opts(&qemu_semihosting_config_opts);
3147 qemu_add_opts(&qemu_fw_cfg_opts);
3148 module_call_init(MODULE_INIT_OPTS);
3149
3150 runstate_init();
3151 postcopy_infrastructure_init();
3152
3153 if (qcrypto_init(&err) < 0) {
3154 error_reportf_err(err, "cannot initialize crypto: ");
3155 exit(1);
3156 }
3157 rtc_clock = QEMU_CLOCK_HOST;
3158
3159 QLIST_INIT (&vm_change_state_head);
3160 os_setup_early_signal_handling();
3161
3162 cpu_model = NULL;
3163 snapshot = 0;
3164
3165 nb_nics = 0;
3166
3167 bdrv_init_with_whitelist();
3168
3169 autostart = 1;
3170
3171 /* first pass of option parsing */
3172 optind = 1;
3173 while (optind < argc) {
3174 if (argv[optind][0] != '-') {
3175 /* disk image */
3176 optind++;
3177 } else {
3178 const QEMUOption *popt;
3179
3180 popt = lookup_opt(argc, argv, &optarg, &optind);
3181 switch (popt->index) {
3182 case QEMU_OPTION_nodefconfig:
3183 case QEMU_OPTION_nouserconfig:
3184 userconfig = false;
3185 break;
3186 }
3187 }
3188 }
3189
3190 if (userconfig) {
3191 if (qemu_read_default_config_file() < 0) {
3192 exit(1);
3193 }
3194 }
3195
3196 /* second pass of option parsing */
3197 optind = 1;
3198 for(;;) {
3199 if (optind >= argc)
3200 break;
3201 if (argv[optind][0] != '-') {
3202 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3203 } else {
3204 const QEMUOption *popt;
3205
3206 popt = lookup_opt(argc, argv, &optarg, &optind);
3207 if (!(popt->arch_mask & arch_type)) {
3208 error_report("Option not supported for this target");
3209 exit(1);
3210 }
3211 switch(popt->index) {
3212 case QEMU_OPTION_no_kvm_irqchip: {
3213 olist = qemu_find_opts("machine");
3214 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3215 break;
3216 }
3217 case QEMU_OPTION_cpu:
3218 /* hw initialization will check this */
3219 cpu_model = optarg;
3220 break;
3221 case QEMU_OPTION_hda:
3222 case QEMU_OPTION_hdb:
3223 case QEMU_OPTION_hdc:
3224 case QEMU_OPTION_hdd:
3225 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3226 HD_OPTS);
3227 break;
3228 case QEMU_OPTION_blockdev:
3229 {
3230 Visitor *v;
3231 BlockdevOptions_queue *bdo;
3232
3233 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3234 if (!v) {
3235 error_report_err(err);
3236 exit(1);
3237 }
3238
3239 bdo = g_new(BlockdevOptions_queue, 1);
3240 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3241 &error_fatal);
3242 visit_free(v);
3243 loc_save(&bdo->loc);
3244 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3245 break;
3246 }
3247 case QEMU_OPTION_drive:
3248 if (drive_def(optarg) == NULL) {
3249 exit(1);
3250 }
3251 break;
3252 case QEMU_OPTION_set:
3253 if (qemu_set_option(optarg) != 0)
3254 exit(1);
3255 break;
3256 case QEMU_OPTION_global:
3257 if (qemu_global_option(optarg) != 0)
3258 exit(1);
3259 break;
3260 case QEMU_OPTION_mtdblock:
3261 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3262 break;
3263 case QEMU_OPTION_sd:
3264 drive_add(IF_SD, -1, optarg, SD_OPTS);
3265 break;
3266 case QEMU_OPTION_pflash:
3267 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3268 break;
3269 case QEMU_OPTION_snapshot:
3270 snapshot = 1;
3271 break;
3272 case QEMU_OPTION_numa:
3273 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3274 optarg, true);
3275 if (!opts) {
3276 exit(1);
3277 }
3278 break;
3279 case QEMU_OPTION_display:
3280 parse_display(optarg);
3281 break;
3282 case QEMU_OPTION_nographic:
3283 olist = qemu_find_opts("machine");
3284 qemu_opts_parse_noisily(olist, "graphics=off", false);
3285 nographic = true;
3286 dpy.type = DISPLAY_TYPE_NONE;
3287 break;
3288 case QEMU_OPTION_curses:
3289 #ifdef CONFIG_CURSES
3290 dpy.type = DISPLAY_TYPE_CURSES;
3291 #else
3292 error_report("curses support is disabled");
3293 exit(1);
3294 #endif
3295 break;
3296 case QEMU_OPTION_portrait:
3297 graphic_rotate = 90;
3298 break;
3299 case QEMU_OPTION_rotate:
3300 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3301 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3302 graphic_rotate != 180 && graphic_rotate != 270) {
3303 error_report("only 90, 180, 270 deg rotation is available");
3304 exit(1);
3305 }
3306 break;
3307 case QEMU_OPTION_kernel:
3308 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3309 &error_abort);
3310 break;
3311 case QEMU_OPTION_initrd:
3312 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3313 &error_abort);
3314 break;
3315 case QEMU_OPTION_append:
3316 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3317 &error_abort);
3318 break;
3319 case QEMU_OPTION_dtb:
3320 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3321 &error_abort);
3322 break;
3323 case QEMU_OPTION_cdrom:
3324 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3325 break;
3326 case QEMU_OPTION_boot:
3327 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3328 optarg, true);
3329 if (!opts) {
3330 exit(1);
3331 }
3332 break;
3333 case QEMU_OPTION_fda:
3334 case QEMU_OPTION_fdb:
3335 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3336 optarg, FD_OPTS);
3337 break;
3338 case QEMU_OPTION_no_fd_bootchk:
3339 fd_bootchk = 0;
3340 break;
3341 case QEMU_OPTION_netdev:
3342 default_net = 0;
3343 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3344 exit(1);
3345 }
3346 break;
3347 case QEMU_OPTION_nic:
3348 default_net = 0;
3349 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3350 exit(1);
3351 }
3352 break;
3353 case QEMU_OPTION_net:
3354 default_net = 0;
3355 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3356 exit(1);
3357 }
3358 break;
3359 #ifdef CONFIG_LIBISCSI
3360 case QEMU_OPTION_iscsi:
3361 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3362 optarg, false);
3363 if (!opts) {
3364 exit(1);
3365 }
3366 break;
3367 #endif
3368 #ifdef CONFIG_SLIRP
3369 case QEMU_OPTION_tftp:
3370 error_report("The -tftp option is deprecated. "
3371 "Please use '-netdev user,tftp=...' instead.");
3372 legacy_tftp_prefix = optarg;
3373 break;
3374 case QEMU_OPTION_bootp:
3375 error_report("The -bootp option is deprecated. "
3376 "Please use '-netdev user,bootfile=...' instead.");
3377 legacy_bootp_filename = optarg;
3378 break;
3379 case QEMU_OPTION_redir:
3380 error_report("The -redir option is deprecated. "
3381 "Please use '-netdev user,hostfwd=...' instead.");
3382 if (net_slirp_redir(optarg) < 0)
3383 exit(1);
3384 break;
3385 #endif
3386 case QEMU_OPTION_bt:
3387 add_device_config(DEV_BT, optarg);
3388 break;
3389 case QEMU_OPTION_audio_help:
3390 AUD_help ();
3391 exit (0);
3392 break;
3393 case QEMU_OPTION_soundhw:
3394 select_soundhw (optarg);
3395 break;
3396 case QEMU_OPTION_h:
3397 help(0);
3398 break;
3399 case QEMU_OPTION_version:
3400 version();
3401 exit(0);
3402 break;
3403 case QEMU_OPTION_m:
3404 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3405 optarg, true);
3406 if (!opts) {
3407 exit(EXIT_FAILURE);
3408 }
3409 break;
3410 #ifdef CONFIG_TPM
3411 case QEMU_OPTION_tpmdev:
3412 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3413 exit(1);
3414 }
3415 break;
3416 #endif
3417 case QEMU_OPTION_mempath:
3418 mem_path = optarg;
3419 break;
3420 case QEMU_OPTION_mem_prealloc:
3421 mem_prealloc = 1;
3422 break;
3423 case QEMU_OPTION_d:
3424 log_mask = optarg;
3425 break;
3426 case QEMU_OPTION_D:
3427 log_file = optarg;
3428 break;
3429 case QEMU_OPTION_DFILTER:
3430 qemu_set_dfilter_ranges(optarg, &error_fatal);
3431 break;
3432 case QEMU_OPTION_s:
3433 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3434 break;
3435 case QEMU_OPTION_gdb:
3436 add_device_config(DEV_GDB, optarg);
3437 break;
3438 case QEMU_OPTION_L:
3439 if (is_help_option(optarg)) {
3440 list_data_dirs = true;
3441 } else {
3442 qemu_add_data_dir(optarg);
3443 }
3444 break;
3445 case QEMU_OPTION_bios:
3446 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3447 &error_abort);
3448 break;
3449 case QEMU_OPTION_singlestep:
3450 singlestep = 1;
3451 break;
3452 case QEMU_OPTION_S:
3453 autostart = 0;
3454 break;
3455 case QEMU_OPTION_k:
3456 keyboard_layout = optarg;
3457 break;
3458 case QEMU_OPTION_localtime:
3459 rtc_utc = 0;
3460 warn_report("This option is deprecated, "
3461 "use '-rtc base=localtime' instead.");
3462 break;
3463 case QEMU_OPTION_vga:
3464 vga_model = optarg;
3465 default_vga = 0;
3466 break;
3467 case QEMU_OPTION_g:
3468 {
3469 const char *p;
3470 int w, h, depth;
3471 p = optarg;
3472 w = strtol(p, (char **)&p, 10);
3473 if (w <= 0) {
3474 graphic_error:
3475 error_report("invalid resolution or depth");
3476 exit(1);
3477 }
3478 if (*p != 'x')
3479 goto graphic_error;
3480 p++;
3481 h = strtol(p, (char **)&p, 10);
3482 if (h <= 0)
3483 goto graphic_error;
3484 if (*p == 'x') {
3485 p++;
3486 depth = strtol(p, (char **)&p, 10);
3487 if (depth != 8 && depth != 15 && depth != 16 &&
3488 depth != 24 && depth != 32)
3489 goto graphic_error;
3490 } else if (*p == '\0') {
3491 depth = graphic_depth;
3492 } else {
3493 goto graphic_error;
3494 }
3495
3496 graphic_width = w;
3497 graphic_height = h;
3498 graphic_depth = depth;
3499 }
3500 break;
3501 case QEMU_OPTION_echr:
3502 {
3503 char *r;
3504 term_escape_char = strtol(optarg, &r, 0);
3505 if (r == optarg)
3506 printf("Bad argument to echr\n");
3507 break;
3508 }
3509 case QEMU_OPTION_monitor:
3510 default_monitor = 0;
3511 if (strncmp(optarg, "none", 4)) {
3512 monitor_parse(optarg, "readline", false);
3513 }
3514 break;
3515 case QEMU_OPTION_qmp:
3516 monitor_parse(optarg, "control", false);
3517 default_monitor = 0;
3518 break;
3519 case QEMU_OPTION_qmp_pretty:
3520 monitor_parse(optarg, "control", true);
3521 default_monitor = 0;
3522 break;
3523 case QEMU_OPTION_mon:
3524 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3525 true);
3526 if (!opts) {
3527 exit(1);
3528 }
3529 default_monitor = 0;
3530 break;
3531 case QEMU_OPTION_chardev:
3532 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3533 optarg, true);
3534 if (!opts) {
3535 exit(1);
3536 }
3537 break;
3538 case QEMU_OPTION_fsdev:
3539 olist = qemu_find_opts("fsdev");
3540 if (!olist) {
3541 error_report("fsdev support is disabled");
3542 exit(1);
3543 }
3544 opts = qemu_opts_parse_noisily(olist, optarg, true);
3545 if (!opts) {
3546 exit(1);
3547 }
3548 break;
3549 case QEMU_OPTION_virtfs: {
3550 QemuOpts *fsdev;
3551 QemuOpts *device;
3552 const char *writeout, *sock_fd, *socket, *path, *security_model;
3553
3554 olist = qemu_find_opts("virtfs");
3555 if (!olist) {
3556 error_report("virtfs support is disabled");
3557 exit(1);
3558 }
3559 opts = qemu_opts_parse_noisily(olist, optarg, true);
3560 if (!opts) {
3561 exit(1);
3562 }
3563
3564 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3565 qemu_opt_get(opts, "mount_tag") == NULL) {
3566 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3567 exit(1);
3568 }
3569 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3570 qemu_opts_id(opts) ?:
3571 qemu_opt_get(opts, "mount_tag"),
3572 1, NULL);
3573 if (!fsdev) {
3574 error_report("duplicate or invalid fsdev id: %s",
3575 qemu_opt_get(opts, "mount_tag"));
3576 exit(1);
3577 }
3578
3579 writeout = qemu_opt_get(opts, "writeout");
3580 if (writeout) {
3581 #ifdef CONFIG_SYNC_FILE_RANGE
3582 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3583 #else
3584 error_report("writeout=immediate not supported "
3585 "on this platform");
3586 exit(1);
3587 #endif
3588 }
3589 qemu_opt_set(fsdev, "fsdriver",
3590 qemu_opt_get(opts, "fsdriver"), &error_abort);
3591 path = qemu_opt_get(opts, "path");
3592 if (path) {
3593 qemu_opt_set(fsdev, "path", path, &error_abort);
3594 }
3595 security_model = qemu_opt_get(opts, "security_model");
3596 if (security_model) {
3597 qemu_opt_set(fsdev, "security_model", security_model,
3598 &error_abort);
3599 }
3600 socket = qemu_opt_get(opts, "socket");
3601 if (socket) {
3602 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3603 }
3604 sock_fd = qemu_opt_get(opts, "sock_fd");
3605 if (sock_fd) {
3606 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3607 }
3608
3609 qemu_opt_set_bool(fsdev, "readonly",
3610 qemu_opt_get_bool(opts, "readonly", 0),
3611 &error_abort);
3612 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3613 &error_abort);
3614 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3615 qemu_opt_set(device, "fsdev",
3616 qemu_opts_id(fsdev), &error_abort);
3617 qemu_opt_set(device, "mount_tag",
3618 qemu_opt_get(opts, "mount_tag"), &error_abort);
3619 break;
3620 }
3621 case QEMU_OPTION_virtfs_synth: {
3622 QemuOpts *fsdev;
3623 QemuOpts *device;
3624
3625 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3626 1, NULL);
3627 if (!fsdev) {
3628 error_report("duplicate option: %s", "virtfs_synth");
3629 exit(1);
3630 }
3631 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3632
3633 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3634 &error_abort);
3635 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3636 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3637 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3638 break;
3639 }
3640 case QEMU_OPTION_serial:
3641 add_device_config(DEV_SERIAL, optarg);
3642 default_serial = 0;
3643 if (strncmp(optarg, "mon:", 4) == 0) {
3644 default_monitor = 0;
3645 }
3646 break;
3647 case QEMU_OPTION_watchdog:
3648 if (watchdog) {
3649 error_report("only one watchdog option may be given");
3650 return 1;
3651 }
3652 watchdog = optarg;
3653 break;
3654 case QEMU_OPTION_watchdog_action:
3655 if (select_watchdog_action(optarg) == -1) {
3656 error_report("unknown -watchdog-action parameter");
3657 exit(1);
3658 }
3659 break;
3660 case QEMU_OPTION_virtiocon:
3661 add_device_config(DEV_VIRTCON, optarg);
3662 default_virtcon = 0;
3663 if (strncmp(optarg, "mon:", 4) == 0) {
3664 default_monitor = 0;
3665 }
3666 break;
3667 case QEMU_OPTION_parallel:
3668 add_device_config(DEV_PARALLEL, optarg);
3669 default_parallel = 0;
3670 if (strncmp(optarg, "mon:", 4) == 0) {
3671 default_monitor = 0;
3672 }
3673 break;
3674 case QEMU_OPTION_debugcon:
3675 add_device_config(DEV_DEBUGCON, optarg);
3676 break;
3677 case QEMU_OPTION_loadvm:
3678 loadvm = optarg;
3679 break;
3680 case QEMU_OPTION_full_screen:
3681 dpy.has_full_screen = true;
3682 dpy.full_screen = true;
3683 break;
3684 case QEMU_OPTION_no_frame:
3685 g_printerr("The -no-frame switch is deprecated, and will be\n"
3686 "removed in a future release.\n");
3687 no_frame = 1;
3688 break;
3689 case QEMU_OPTION_alt_grab:
3690 alt_grab = 1;
3691 break;
3692 case QEMU_OPTION_ctrl_grab:
3693 ctrl_grab = 1;
3694 break;
3695 case QEMU_OPTION_no_quit:
3696 dpy.has_window_close = true;
3697 dpy.window_close = false;
3698 break;
3699 case QEMU_OPTION_sdl:
3700 #ifdef CONFIG_SDL
3701 dpy.type = DISPLAY_TYPE_SDL;
3702 break;
3703 #else
3704 error_report("SDL support is disabled");
3705 exit(1);
3706 #endif
3707 case QEMU_OPTION_pidfile:
3708 pid_file = optarg;
3709 break;
3710 case QEMU_OPTION_win2k_hack:
3711 win2k_install_hack = 1;
3712 break;
3713 case QEMU_OPTION_rtc_td_hack: {
3714 static GlobalProperty slew_lost_ticks = {
3715 .driver = "mc146818rtc",
3716 .property = "lost_tick_policy",
3717 .value = "slew",
3718 };
3719
3720 qdev_prop_register_global(&slew_lost_ticks);
3721 warn_report("This option is deprecated, "
3722 "use '-rtc driftfix=slew' instead.");
3723 break;
3724 }
3725 case QEMU_OPTION_acpitable:
3726 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3727 optarg, true);
3728 if (!opts) {
3729 exit(1);
3730 }
3731 acpi_table_add(opts, &error_fatal);
3732 break;
3733 case QEMU_OPTION_smbios:
3734 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3735 optarg, false);
3736 if (!opts) {
3737 exit(1);
3738 }
3739 smbios_entry_add(opts, &error_fatal);
3740 break;
3741 case QEMU_OPTION_fwcfg:
3742 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3743 optarg, true);
3744 if (opts == NULL) {
3745 exit(1);
3746 }
3747 break;
3748 case QEMU_OPTION_enable_kvm:
3749 olist = qemu_find_opts("machine");
3750 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3751 break;
3752 case QEMU_OPTION_enable_hax:
3753 olist = qemu_find_opts("machine");
3754 qemu_opts_parse_noisily(olist, "accel=hax", false);
3755 break;
3756 case QEMU_OPTION_M:
3757 case QEMU_OPTION_machine:
3758 olist = qemu_find_opts("machine");
3759 opts = qemu_opts_parse_noisily(olist, optarg, true);
3760 if (!opts) {
3761 exit(1);
3762 }
3763 break;
3764 case QEMU_OPTION_no_kvm:
3765 olist = qemu_find_opts("machine");
3766 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3767 break;
3768 case QEMU_OPTION_no_kvm_pit_reinjection: {
3769 static GlobalProperty kvm_pit_lost_tick_policy = {
3770 .driver = "kvm-pit",
3771 .property = "lost_tick_policy",
3772 .value = "discard",
3773 };
3774
3775 warn_report("deprecated, replaced by "
3776 "-global kvm-pit.lost_tick_policy=discard");
3777 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3778 break;
3779 }
3780 case QEMU_OPTION_accel:
3781 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3782 optarg, true);
3783 optarg = qemu_opt_get(accel_opts, "accel");
3784 if (!optarg || is_help_option(optarg)) {
3785 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3786 exit(0);
3787 }
3788 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3789 false, &error_abort);
3790 qemu_opt_set(opts, "accel", optarg, &error_abort);
3791 break;
3792 case QEMU_OPTION_usb:
3793 olist = qemu_find_opts("machine");
3794 qemu_opts_parse_noisily(olist, "usb=on", false);
3795 break;
3796 case QEMU_OPTION_usbdevice:
3797 error_report("'-usbdevice' is deprecated, please use "
3798 "'-device usb-...' instead");
3799 olist = qemu_find_opts("machine");
3800 qemu_opts_parse_noisily(olist, "usb=on", false);
3801 add_device_config(DEV_USB, optarg);
3802 break;
3803 case QEMU_OPTION_device:
3804 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3805 optarg, true)) {
3806 exit(1);
3807 }
3808 break;
3809 case QEMU_OPTION_smp:
3810 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3811 optarg, true)) {
3812 exit(1);
3813 }
3814 break;
3815 case QEMU_OPTION_vnc:
3816 vnc_parse(optarg, &error_fatal);
3817 break;
3818 case QEMU_OPTION_no_acpi:
3819 acpi_enabled = 0;
3820 break;
3821 case QEMU_OPTION_no_hpet:
3822 no_hpet = 1;
3823 break;
3824 case QEMU_OPTION_balloon:
3825 if (balloon_parse(optarg) < 0) {
3826 error_report("unknown -balloon argument %s", optarg);
3827 exit(1);
3828 }
3829 break;
3830 case QEMU_OPTION_no_reboot:
3831 no_reboot = 1;
3832 break;
3833 case QEMU_OPTION_no_shutdown:
3834 no_shutdown = 1;
3835 break;
3836 case QEMU_OPTION_show_cursor:
3837 cursor_hide = 0;
3838 break;
3839 case QEMU_OPTION_uuid:
3840 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3841 error_report("failed to parse UUID string: wrong format");
3842 exit(1);
3843 }
3844 qemu_uuid_set = true;
3845 break;
3846 case QEMU_OPTION_option_rom:
3847 if (nb_option_roms >= MAX_OPTION_ROMS) {
3848 error_report("too many option ROMs");
3849 exit(1);
3850 }
3851 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3852 optarg, true);
3853 if (!opts) {
3854 exit(1);
3855 }
3856 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3857 option_rom[nb_option_roms].bootindex =
3858 qemu_opt_get_number(opts, "bootindex", -1);
3859 if (!option_rom[nb_option_roms].name) {
3860 error_report("Option ROM file is not specified");
3861 exit(1);
3862 }
3863 nb_option_roms++;
3864 break;
3865 case QEMU_OPTION_semihosting:
3866 semihosting.enabled = true;
3867 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3868 break;
3869 case QEMU_OPTION_semihosting_config:
3870 semihosting.enabled = true;
3871 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3872 optarg, false);
3873 if (opts != NULL) {
3874 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3875 true);
3876 const char *target = qemu_opt_get(opts, "target");
3877 if (target != NULL) {
3878 if (strcmp("native", target) == 0) {
3879 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3880 } else if (strcmp("gdb", target) == 0) {
3881 semihosting.target = SEMIHOSTING_TARGET_GDB;
3882 } else if (strcmp("auto", target) == 0) {
3883 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3884 } else {
3885 error_report("unsupported semihosting-config %s",
3886 optarg);
3887 exit(1);
3888 }
3889 } else {
3890 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3891 }
3892 /* Set semihosting argument count and vector */
3893 qemu_opt_foreach(opts, add_semihosting_arg,
3894 &semihosting, NULL);
3895 } else {
3896 error_report("unsupported semihosting-config %s", optarg);
3897 exit(1);
3898 }
3899 break;
3900 case QEMU_OPTION_name:
3901 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3902 optarg, true);
3903 if (!opts) {
3904 exit(1);
3905 }
3906 break;
3907 case QEMU_OPTION_prom_env:
3908 if (nb_prom_envs >= MAX_PROM_ENVS) {
3909 error_report("too many prom variables");
3910 exit(1);
3911 }
3912 prom_envs[nb_prom_envs] = optarg;
3913 nb_prom_envs++;
3914 break;
3915 case QEMU_OPTION_old_param:
3916 old_param = 1;
3917 break;
3918 case QEMU_OPTION_clock:
3919 /* Clock options no longer exist. Keep this option for
3920 * backward compatibility.
3921 */
3922 break;
3923 case QEMU_OPTION_startdate:
3924 warn_report("This option is deprecated, use '-rtc base=' instead.");
3925 configure_rtc_date_offset(optarg, 1);
3926 break;
3927 case QEMU_OPTION_rtc:
3928 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3929 false);
3930 if (!opts) {
3931 exit(1);
3932 }
3933 configure_rtc(opts);
3934 break;
3935 case QEMU_OPTION_tb_size:
3936 #ifndef CONFIG_TCG
3937 error_report("TCG is disabled");
3938 exit(1);
3939 #endif
3940 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3941 error_report("Invalid argument to -tb-size");
3942 exit(1);
3943 }
3944 break;
3945 case QEMU_OPTION_icount:
3946 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3947 optarg, true);
3948 if (!icount_opts) {
3949 exit(1);
3950 }
3951 break;
3952 case QEMU_OPTION_incoming:
3953 if (!incoming) {
3954 runstate_set(RUN_STATE_INMIGRATE);
3955 }
3956 incoming = optarg;
3957 break;
3958 case QEMU_OPTION_only_migratable:
3959 /*
3960 * TODO: we can remove this option one day, and we
3961 * should all use:
3962 *
3963 * "-global migration.only-migratable=true"
3964 */
3965 qemu_global_option("migration.only-migratable=true");
3966 break;
3967 case QEMU_OPTION_nodefaults:
3968 has_defaults = 0;
3969 break;
3970 case QEMU_OPTION_xen_domid:
3971 if (!(xen_available())) {
3972 error_report("Option not supported for this target");
3973 exit(1);
3974 }
3975 xen_domid = atoi(optarg);
3976 break;
3977 case QEMU_OPTION_xen_create:
3978 if (!(xen_available())) {
3979 error_report("Option not supported for this target");
3980 exit(1);
3981 }
3982 xen_mode = XEN_CREATE;
3983 break;
3984 case QEMU_OPTION_xen_attach:
3985 if (!(xen_available())) {
3986 error_report("Option not supported for this target");
3987 exit(1);
3988 }
3989 xen_mode = XEN_ATTACH;
3990 break;
3991 case QEMU_OPTION_xen_domid_restrict:
3992 if (!(xen_available())) {
3993 error_report("Option not supported for this target");
3994 exit(1);
3995 }
3996 xen_domid_restrict = true;
3997 break;
3998 case QEMU_OPTION_trace:
3999 g_free(trace_file);
4000 trace_file = trace_opt_parse(optarg);
4001 break;
4002 case QEMU_OPTION_trace_unassigned:
4003 trace_unassigned = true;
4004 break;
4005 case QEMU_OPTION_readconfig:
4006 {
4007 int ret = qemu_read_config_file(optarg);
4008 if (ret < 0) {
4009 error_report("read config %s: %s", optarg,
4010 strerror(-ret));
4011 exit(1);
4012 }
4013 break;
4014 }
4015 case QEMU_OPTION_spice:
4016 olist = qemu_find_opts("spice");
4017 if (!olist) {
4018 error_report("spice support is disabled");
4019 exit(1);
4020 }
4021 opts = qemu_opts_parse_noisily(olist, optarg, false);
4022 if (!opts) {
4023 exit(1);
4024 }
4025 display_remote++;
4026 break;
4027 case QEMU_OPTION_writeconfig:
4028 {
4029 FILE *fp;
4030 if (strcmp(optarg, "-") == 0) {
4031 fp = stdout;
4032 } else {
4033 fp = fopen(optarg, "w");
4034 if (fp == NULL) {
4035 error_report("open %s: %s", optarg,
4036 strerror(errno));
4037 exit(1);
4038 }
4039 }
4040 qemu_config_write(fp);
4041 if (fp != stdout) {
4042 fclose(fp);
4043 }
4044 break;
4045 }
4046 case QEMU_OPTION_qtest:
4047 qtest_chrdev = optarg;
4048 break;
4049 case QEMU_OPTION_qtest_log:
4050 qtest_log = optarg;
4051 break;
4052 case QEMU_OPTION_sandbox:
4053 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4054 optarg, true);
4055 if (!opts) {
4056 exit(1);
4057 }
4058 break;
4059 case QEMU_OPTION_add_fd:
4060 #ifndef _WIN32
4061 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4062 optarg, false);
4063 if (!opts) {
4064 exit(1);
4065 }
4066 #else
4067 error_report("File descriptor passing is disabled on this "
4068 "platform");
4069 exit(1);
4070 #endif
4071 break;
4072 case QEMU_OPTION_object:
4073 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4074 optarg, true);
4075 if (!opts) {
4076 exit(1);
4077 }
4078 break;
4079 case QEMU_OPTION_realtime:
4080 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4081 optarg, false);
4082 if (!opts) {
4083 exit(1);
4084 }
4085 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4086 break;
4087 case QEMU_OPTION_msg:
4088 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4089 false);
4090 if (!opts) {
4091 exit(1);
4092 }
4093 configure_msg(opts);
4094 break;
4095 case QEMU_OPTION_dump_vmstate:
4096 if (vmstate_dump_file) {
4097 error_report("only one '-dump-vmstate' "
4098 "option may be given");
4099 exit(1);
4100 }
4101 vmstate_dump_file = fopen(optarg, "w");
4102 if (vmstate_dump_file == NULL) {
4103 error_report("open %s: %s", optarg, strerror(errno));
4104 exit(1);
4105 }
4106 break;
4107 default:
4108 os_parse_cmd_args(popt->index, optarg);
4109 }
4110 }
4111 }
4112 /*
4113 * Clear error location left behind by the loop.
4114 * Best done right after the loop. Do not insert code here!
4115 */
4116 loc_set_none();
4117
4118 replay_configure(icount_opts);
4119
4120 machine_class = select_machine();
4121
4122 set_memory_options(&ram_slots, &maxram_size, machine_class);
4123
4124 os_daemonize();
4125 rcu_disable_atfork();
4126
4127 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4128 error_report("could not acquire pid file: %s", strerror(errno));
4129 exit(1);
4130 }
4131
4132 if (qemu_init_main_loop(&main_loop_err)) {
4133 error_report_err(main_loop_err);
4134 exit(1);
4135 }
4136
4137 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4138 parse_sandbox, NULL, NULL)) {
4139 exit(1);
4140 }
4141
4142 if (qemu_opts_foreach(qemu_find_opts("name"),
4143 parse_name, NULL, NULL)) {
4144 exit(1);
4145 }
4146
4147 #ifndef _WIN32
4148 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4149 parse_add_fd, NULL, NULL)) {
4150 exit(1);
4151 }
4152
4153 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4154 cleanup_add_fd, NULL, NULL)) {
4155 exit(1);
4156 }
4157 #endif
4158
4159 current_machine = MACHINE(object_new(object_class_get_name(
4160 OBJECT_CLASS(machine_class))));
4161 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4162 exit(0);
4163 }
4164 object_property_add_child(object_get_root(), "machine",
4165 OBJECT(current_machine), &error_abort);
4166
4167 if (machine_class->minimum_page_bits) {
4168 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4169 /* This would be a board error: specifying a minimum smaller than
4170 * a target's compile-time fixed setting.
4171 */
4172 g_assert_not_reached();
4173 }
4174 }
4175
4176 cpu_exec_init_all();
4177
4178 if (machine_class->hw_version) {
4179 qemu_set_hw_version(machine_class->hw_version);
4180 }
4181
4182 if (cpu_model && is_help_option(cpu_model)) {
4183 list_cpus(stdout, &fprintf, cpu_model);
4184 exit(0);
4185 }
4186
4187 if (!trace_init_backends()) {
4188 exit(1);
4189 }
4190 trace_init_file(trace_file);
4191
4192 /* Open the logfile at this point and set the log mask if necessary.
4193 */
4194 if (log_file) {
4195 qemu_set_log_filename(log_file, &error_fatal);
4196 }
4197
4198 if (log_mask) {
4199 int mask;
4200 mask = qemu_str_to_log_mask(log_mask);
4201 if (!mask) {
4202 qemu_print_log_usage(stdout);
4203 exit(1);
4204 }
4205 qemu_set_log(mask);
4206 } else {
4207 qemu_set_log(0);
4208 }
4209
4210 /* add configured firmware directories */
4211 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4212 for (i = 0; dirs[i] != NULL; i++) {
4213 qemu_add_data_dir(dirs[i]);
4214 }
4215 g_strfreev(dirs);
4216
4217 /* try to find datadir relative to the executable path */
4218 dir = os_find_datadir();
4219 qemu_add_data_dir(dir);
4220 g_free(dir);
4221
4222 /* add the datadir specified when building */
4223 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4224
4225 /* -L help lists the data directories and exits. */
4226 if (list_data_dirs) {
4227 for (i = 0; i < data_dir_idx; i++) {
4228 printf("%s\n", data_dir[i]);
4229 }
4230 exit(0);
4231 }
4232
4233 /* machine_class: default to UP */
4234 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4235 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4236 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4237
4238 /* default to machine_class->default_cpus */
4239 smp_cpus = machine_class->default_cpus;
4240 max_cpus = machine_class->default_cpus;
4241
4242 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4243
4244 /* sanity-check smp_cpus and max_cpus against machine_class */
4245 if (smp_cpus < machine_class->min_cpus) {
4246 error_report("Invalid SMP CPUs %d. The min CPUs "
4247 "supported by machine '%s' is %d", smp_cpus,
4248 machine_class->name, machine_class->min_cpus);
4249 exit(1);
4250 }
4251 if (max_cpus > machine_class->max_cpus) {
4252 error_report("Invalid SMP CPUs %d. The max CPUs "
4253 "supported by machine '%s' is %d", max_cpus,
4254 machine_class->name, machine_class->max_cpus);
4255 exit(1);
4256 }
4257
4258 /*
4259 * Get the default machine options from the machine if it is not already
4260 * specified either by the configuration file or by the command line.
4261 */
4262 if (machine_class->default_machine_opts) {
4263 qemu_opts_set_defaults(qemu_find_opts("machine"),
4264 machine_class->default_machine_opts, 0);
4265 }
4266
4267 qemu_opts_foreach(qemu_find_opts("device"),
4268 default_driver_check, NULL, NULL);
4269 qemu_opts_foreach(qemu_find_opts("global"),
4270 default_driver_check, NULL, NULL);
4271
4272 if (!vga_model && !default_vga) {
4273 vga_interface_type = VGA_DEVICE;
4274 }
4275 if (!has_defaults || machine_class->no_serial) {
4276 default_serial = 0;
4277 }
4278 if (!has_defaults || machine_class->no_parallel) {
4279 default_parallel = 0;
4280 }
4281 if (!has_defaults || !machine_class->use_virtcon) {
4282 default_virtcon = 0;
4283 }
4284 if (!has_defaults || !machine_class->use_sclp) {
4285 default_sclp = 0;
4286 }
4287 if (!has_defaults || machine_class->no_floppy) {
4288 default_floppy = 0;
4289 }
4290 if (!has_defaults || machine_class->no_cdrom) {
4291 default_cdrom = 0;
4292 }
4293 if (!has_defaults || machine_class->no_sdcard) {
4294 default_sdcard = 0;
4295 }
4296 if (!has_defaults) {
4297 default_monitor = 0;
4298 default_net = 0;
4299 default_vga = 0;
4300 }
4301
4302 if (is_daemonized()) {
4303 /* According to documentation and historically, -nographic redirects
4304 * serial port, parallel port and monitor to stdio, which does not work
4305 * with -daemonize. We can redirect these to null instead, but since
4306 * -nographic is legacy, let's just error out.
4307 * We disallow -nographic only if all other ports are not redirected
4308 * explicitly, to not break existing legacy setups which uses
4309 * -nographic _and_ redirects all ports explicitly - this is valid
4310 * usage, -nographic is just a no-op in this case.
4311 */
4312 if (nographic
4313 && (default_parallel || default_serial
4314 || default_monitor || default_virtcon)) {
4315 error_report("-nographic cannot be used with -daemonize");
4316 exit(1);
4317 }
4318 #ifdef CONFIG_CURSES
4319 if (dpy.type == DISPLAY_TYPE_CURSES) {
4320 error_report("curses display cannot be used with -daemonize");
4321 exit(1);
4322 }
4323 #endif
4324 }
4325
4326 if (nographic) {
4327 if (default_parallel)
4328 add_device_config(DEV_PARALLEL, "null");
4329 if (default_serial && default_monitor) {
4330 add_device_config(DEV_SERIAL, "mon:stdio");
4331 } else if (default_virtcon && default_monitor) {
4332 add_device_config(DEV_VIRTCON, "mon:stdio");
4333 } else if (default_sclp && default_monitor) {
4334 add_device_config(DEV_SCLP, "mon:stdio");
4335 } else {
4336 if (default_serial)
4337 add_device_config(DEV_SERIAL, "stdio");
4338 if (default_virtcon)
4339 add_device_config(DEV_VIRTCON, "stdio");
4340 if (default_sclp) {
4341 add_device_config(DEV_SCLP, "stdio");
4342 }
4343 if (default_monitor)
4344 monitor_parse("stdio", "readline", false);
4345 }
4346 } else {
4347 if (default_serial)
4348 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4349 if (default_parallel)
4350 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4351 if (default_monitor)
4352 monitor_parse("vc:80Cx24C", "readline", false);
4353 if (default_virtcon)
4354 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4355 if (default_sclp) {
4356 add_device_config(DEV_SCLP, "vc:80Cx24C");
4357 }
4358 }
4359
4360 #if defined(CONFIG_VNC)
4361 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4362 display_remote++;
4363 }
4364 #endif
4365 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4366 if (!qemu_display_find_default(&dpy)) {
4367 dpy.type = DISPLAY_TYPE_NONE;
4368 #if defined(CONFIG_VNC)
4369 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4370 #endif
4371 }
4372 }
4373 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4374 dpy.type = DISPLAY_TYPE_NONE;
4375 }
4376
4377 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4378 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4379 "for SDL, ignoring option");
4380 }
4381 if (dpy.has_window_close &&
4382 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4383 error_report("-no-quit is only valid for GTK and SDL, "
4384 "ignoring option");
4385 }
4386
4387 qemu_display_early_init(&dpy);
4388 qemu_console_early_init();
4389
4390 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4391 #if defined(CONFIG_OPENGL)
4392 error_report("OpenGL is not supported by the display");
4393 #else
4394 error_report("OpenGL support is disabled");
4395 #endif
4396 exit(1);
4397 }
4398
4399 page_size_init();
4400 socket_init();
4401
4402 if (qemu_opts_foreach(qemu_find_opts("object"),
4403 user_creatable_add_opts_foreach,
4404 object_create_initial, NULL)) {
4405 exit(1);
4406 }
4407
4408 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4409 chardev_init_func, NULL, NULL)) {
4410 exit(1);
4411 }
4412
4413 #ifdef CONFIG_VIRTFS
4414 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4415 fsdev_init_func, NULL, NULL)) {
4416 exit(1);
4417 }
4418 #endif
4419
4420 if (qemu_opts_foreach(qemu_find_opts("device"),
4421 device_help_func, NULL, NULL)) {
4422 exit(0);
4423 }
4424
4425 machine_opts = qemu_get_machine_opts();
4426 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4427 NULL)) {
4428 object_unref(OBJECT(current_machine));
4429 exit(1);
4430 }
4431
4432 configure_accelerator(current_machine);
4433
4434 /*
4435 * Register all the global properties, including accel properties,
4436 * machine properties, and user-specified ones.
4437 */
4438 register_global_properties(current_machine);
4439
4440 /*
4441 * Migration object can only be created after global properties
4442 * are applied correctly.
4443 */
4444 migration_object_init();
4445
4446 if (qtest_chrdev) {
4447 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4448 }
4449
4450 machine_opts = qemu_get_machine_opts();
4451 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4452 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4453 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4454 bios_name = qemu_opt_get(machine_opts, "firmware");
4455
4456 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4457 if (opts) {
4458 boot_order = qemu_opt_get(opts, "order");
4459 if (boot_order) {
4460 validate_bootdevices(boot_order, &error_fatal);
4461 }
4462
4463 boot_once = qemu_opt_get(opts, "once");
4464 if (boot_once) {
4465 validate_bootdevices(boot_once, &error_fatal);
4466 }
4467
4468 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4469 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4470 }
4471
4472 if (!boot_order) {
4473 boot_order = machine_class->default_boot_order;
4474 }
4475
4476 if (!kernel_cmdline) {
4477 kernel_cmdline = "";
4478 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4479 }
4480
4481 linux_boot = (kernel_filename != NULL);
4482
4483 if (!linux_boot && *kernel_cmdline != '\0') {
4484 error_report("-append only allowed with -kernel option");
4485 exit(1);
4486 }
4487
4488 if (!linux_boot && initrd_filename != NULL) {
4489 error_report("-initrd only allowed with -kernel option");
4490 exit(1);
4491 }
4492
4493 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4494 /* fall back to the -kernel/-append */
4495 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4496 }
4497
4498 os_set_line_buffering();
4499
4500 /* spice needs the timers to be initialized by this point */
4501 qemu_spice_init();
4502
4503 cpu_ticks_init();
4504 if (icount_opts) {
4505 if (!tcg_enabled()) {
4506 error_report("-icount is not allowed with hardware virtualization");
4507 exit(1);
4508 }
4509 configure_icount(icount_opts, &error_abort);
4510 qemu_opts_del(icount_opts);
4511 }
4512
4513 if (tcg_enabled()) {
4514 qemu_tcg_configure(accel_opts, &error_fatal);
4515 }
4516
4517 if (default_net) {
4518 QemuOptsList *net = qemu_find_opts("net");
4519 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4520 #ifdef CONFIG_SLIRP
4521 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4522 #endif
4523 }
4524
4525 colo_info_init();
4526
4527 if (net_init_clients(&err) < 0) {
4528 error_report_err(err);
4529 exit(1);
4530 }
4531
4532 if (qemu_opts_foreach(qemu_find_opts("object"),
4533 user_creatable_add_opts_foreach,
4534 object_create_delayed, NULL)) {
4535 exit(1);
4536 }
4537
4538 if (tpm_init() < 0) {
4539 exit(1);
4540 }
4541
4542 /* init the bluetooth world */
4543 if (foreach_device_config(DEV_BT, bt_parse))
4544 exit(1);
4545
4546 if (!xen_enabled()) {
4547 /* On 32-bit hosts, QEMU is limited by virtual address space */
4548 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4549 error_report("at most 2047 MB RAM can be simulated");
4550 exit(1);
4551 }
4552 }
4553
4554 blk_mig_init();
4555 ram_mig_init();
4556 dirty_bitmap_mig_init();
4557
4558 /* If the currently selected machine wishes to override the units-per-bus
4559 * property of its default HBA interface type, do so now. */
4560 if (machine_class->units_per_default_bus) {
4561 override_max_devs(machine_class->block_default_type,
4562 machine_class->units_per_default_bus);
4563 }
4564
4565 /* open the virtual block devices */
4566 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4567 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4568
4569 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4570 loc_push_restore(&bdo->loc);
4571 qmp_blockdev_add(bdo->bdo, &error_fatal);
4572 loc_pop(&bdo->loc);
4573 qapi_free_BlockdevOptions(bdo->bdo);
4574 g_free(bdo);
4575 }
4576 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4577 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4578 NULL, NULL);
4579 }
4580 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4581 &machine_class->block_default_type, NULL)) {
4582 exit(1);
4583 }
4584
4585 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4586 CDROM_OPTS);
4587 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4588 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4589
4590 /*
4591 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4592 * depends on configure_accelerator() above.
4593 */
4594 monitor_init_globals();
4595
4596 if (qemu_opts_foreach(qemu_find_opts("mon"),
4597 mon_init_func, NULL, NULL)) {
4598 exit(1);
4599 }
4600
4601 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4602 exit(1);
4603 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4604 exit(1);
4605 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4606 exit(1);
4607 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4608 exit(1);
4609 }
4610 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4611 exit(1);
4612
4613 /* If no default VGA is requested, the default is "none". */
4614 if (default_vga) {
4615 if (machine_class->default_display) {
4616 vga_model = machine_class->default_display;
4617 } else if (vga_interface_available(VGA_CIRRUS)) {
4618 vga_model = "cirrus";
4619 } else if (vga_interface_available(VGA_STD)) {
4620 vga_model = "std";
4621 }
4622 }
4623 if (vga_model) {
4624 select_vgahw(vga_model);
4625 }
4626
4627 if (watchdog) {
4628 i = select_watchdog(watchdog);
4629 if (i > 0)
4630 exit (i == 1 ? 1 : 0);
4631 }
4632
4633 /* This checkpoint is required by replay to separate prior clock
4634 reading from the other reads, because timer polling functions query
4635 clock values from the log. */
4636 replay_checkpoint(CHECKPOINT_INIT);
4637 qdev_machine_init();
4638
4639 current_machine->ram_size = ram_size;
4640 current_machine->maxram_size = maxram_size;
4641 current_machine->ram_slots = ram_slots;
4642 current_machine->boot_order = boot_order;
4643
4644 /* parse features once if machine provides default cpu_type */
4645 current_machine->cpu_type = machine_class->default_cpu_type;
4646 if (cpu_model) {
4647 current_machine->cpu_type = parse_cpu_model(cpu_model);
4648 }
4649 parse_numa_opts(current_machine);
4650
4651 machine_run_board_init(current_machine);
4652
4653 realtime_init();
4654
4655 soundhw_init();
4656
4657 if (hax_enabled()) {
4658 hax_sync_vcpus();
4659 }
4660
4661 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4662 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4663 exit(1);
4664 }
4665
4666 /* init USB devices */
4667 if (machine_usb(current_machine)) {
4668 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4669 exit(1);
4670 }
4671
4672 /* Check if IGD GFX passthrough. */
4673 igd_gfx_passthru();
4674
4675 /* init generic devices */
4676 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4677 if (qemu_opts_foreach(qemu_find_opts("device"),
4678 device_init_func, NULL, NULL)) {
4679 exit(1);
4680 }
4681
4682 cpu_synchronize_all_post_init();
4683
4684 rom_reset_order_override();
4685
4686 /* Did we create any drives that we failed to create a device for? */
4687 drive_check_orphaned();
4688
4689 /* Don't warn about the default network setup that you get if
4690 * no command line -net or -netdev options are specified. There
4691 * are two cases that we would otherwise complain about:
4692 * (1) board doesn't support a NIC but the implicit "-net nic"
4693 * requested one
4694 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4695 * sets up a nic that isn't connected to anything.
4696 */
4697 if (!default_net) {
4698 net_check_clients();
4699 }
4700
4701
4702 if (boot_once) {
4703 qemu_boot_set(boot_once, &error_fatal);
4704 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4705 }
4706
4707 /* init local displays */
4708 ds = init_displaystate();
4709 qemu_display_init(ds, &dpy);
4710
4711 /* must be after terminal init, SDL library changes signal handlers */
4712 os_setup_signal_handling();
4713
4714 /* init remote displays */
4715 #ifdef CONFIG_VNC
4716 qemu_opts_foreach(qemu_find_opts("vnc"),
4717 vnc_init_func, NULL, NULL);
4718 #endif
4719
4720 if (using_spice) {
4721 qemu_spice_display_init();
4722 }
4723
4724 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4725 exit(1);
4726 }
4727
4728 qdev_machine_creation_done();
4729
4730 /* TODO: once all bus devices are qdevified, this should be done
4731 * when bus is created by qdev.c */
4732 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4733 qemu_run_machine_init_done_notifiers();
4734
4735 if (rom_check_and_register_reset() != 0) {
4736 error_report("rom check and register reset failed");
4737 exit(1);
4738 }
4739
4740 replay_start();
4741
4742 /* This checkpoint is required by replay to separate prior clock
4743 reading from the other reads, because timer polling functions query
4744 clock values from the log. */
4745 replay_checkpoint(CHECKPOINT_RESET);
4746 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4747 register_global_state();
4748 if (replay_mode != REPLAY_MODE_NONE) {
4749 replay_vmstate_init();
4750 } else if (loadvm) {
4751 Error *local_err = NULL;
4752 if (load_snapshot(loadvm, &local_err) < 0) {
4753 error_report_err(local_err);
4754 autostart = 0;
4755 }
4756 }
4757
4758 qdev_prop_check_globals();
4759 if (vmstate_dump_file) {
4760 /* dump and exit */
4761 dump_vmstate_json_to_file(vmstate_dump_file);
4762 return 0;
4763 }
4764
4765 if (incoming) {
4766 Error *local_err = NULL;
4767 qemu_start_incoming_migration(incoming, &local_err);
4768 if (local_err) {
4769 error_reportf_err(local_err, "-incoming %s: ", incoming);
4770 exit(1);
4771 }
4772 } else if (autostart) {
4773 vm_start();
4774 }
4775
4776 os_setup_post();
4777
4778 main_loop();
4779
4780 /* No more vcpu or device emulation activity beyond this point */
4781 vm_shutdown();
4782
4783 bdrv_close_all();
4784
4785 res_free();
4786
4787 /* vhost-user must be cleaned up before chardevs. */
4788 tpm_cleanup();
4789 net_cleanup();
4790 audio_cleanup();
4791 monitor_cleanup();
4792 qemu_chr_cleanup();
4793 user_creatable_cleanup();
4794 migration_object_finalize();
4795 /* TODO: unref root container, check all devices are ok */
4796
4797 return 0;
4798 }
AR7 emulation for QEMU