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gluster: Switch to .bdrv_co_block_status()
[qemu/ericb.git] / vl.c
bloba33ac008fb5edd663d2d87b4138fa2066d4eb064
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 #include <SDL.h>
40 int qemu_main(int argc, char **argv, char **envp);
41 int main(int argc, char **argv)
42 {
43 return qemu_main(argc, argv, NULL);
44 }
45 #undef main
46 #define main qemu_main
47 #endif
48 #endif /* CONFIG_SDL */
49
50 #ifdef CONFIG_COCOA
51 #undef main
52 #define main qemu_main
53 #endif /* CONFIG_COCOA */
54
55
56 #include "qemu/error-report.h"
57 #include "qemu/sockets.h"
58 #include "hw/hw.h"
59 #include "hw/boards.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/isa/isa.h"
63 #include "hw/scsi/scsi.h"
64 #include "hw/display/vga.h"
65 #include "hw/bt.h"
66 #include "sysemu/watchdog.h"
67 #include "hw/smbios/smbios.h"
68 #include "hw/acpi/acpi.h"
69 #include "hw/xen/xen.h"
70 #include "hw/qdev.h"
71 #include "hw/loader.h"
72 #include "monitor/qdev.h"
73 #include "sysemu/bt.h"
74 #include "net/net.h"
75 #include "net/slirp.h"
76 #include "monitor/monitor.h"
77 #include "ui/console.h"
78 #include "ui/input.h"
79 #include "sysemu/sysemu.h"
80 #include "sysemu/numa.h"
81 #include "exec/gdbstub.h"
82 #include "qemu/timer.h"
83 #include "chardev/char.h"
84 #include "qemu/bitmap.h"
85 #include "qemu/log.h"
86 #include "sysemu/blockdev.h"
87 #include "hw/block/block.h"
88 #include "migration/misc.h"
89 #include "migration/snapshot.h"
90 #include "migration/global_state.h"
91 #include "sysemu/tpm.h"
92 #include "sysemu/dma.h"
93 #include "hw/audio/soundhw.h"
94 #include "audio/audio.h"
95 #include "sysemu/cpus.h"
96 #include "migration/colo.h"
97 #include "sysemu/kvm.h"
98 #include "sysemu/hax.h"
99 #include "qapi/qobject-input-visitor.h"
100 #include "qapi-visit.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qmp-commands.h"
105 #include "qemu/main-loop.h"
106 #ifdef CONFIG_VIRTFS
107 #include "fsdev/qemu-fsdev.h"
108 #endif
109 #include "sysemu/qtest.h"
110
111 #include "disas/disas.h"
112
113
114 #include "slirp/libslirp.h"
115
116 #include "trace-root.h"
117 #include "trace/control.h"
118 #include "qemu/queue.h"
119 #include "sysemu/arch_init.h"
120
121 #include "ui/qemu-spice.h"
122 #include "qapi/string-input-visitor.h"
123 #include "qapi/opts-visitor.h"
124 #include "qom/object_interfaces.h"
125 #include "qapi-event.h"
126 #include "exec/semihost.h"
127 #include "crypto/init.h"
128 #include "sysemu/replay.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131
132 #define MAX_VIRTIO_CONSOLES 1
133 #define MAX_SCLP_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int display_opengl;
140 const char* keyboard_layout = NULL;
141 ram_addr_t ram_size;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 int nb_nics;
146 NICInfo nd_table[MAX_NICS];
147 int autostart;
148 static int rtc_utc = 1;
149 static int rtc_date_offset = -1; /* -1 means no change */
150 QEMUClockType rtc_clock;
151 int vga_interface_type = VGA_NONE;
152 static DisplayOptions dpy;
153 int no_frame;
154 Chardev *serial_hds[MAX_SERIAL_PORTS];
155 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
156 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
157 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
158 int win2k_install_hack = 0;
159 int singlestep = 0;
160 int smp_cpus;
161 unsigned int max_cpus;
162 int smp_cores = 1;
163 int smp_threads = 1;
164 int acpi_enabled = 1;
165 int no_hpet = 0;
166 int fd_bootchk = 1;
167 static int no_reboot;
168 int no_shutdown = 0;
169 int cursor_hide = 1;
170 int graphic_rotate = 0;
171 const char *watchdog;
172 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
173 int nb_option_roms;
174 int old_param = 0;
175 const char *qemu_name;
176 int alt_grab = 0;
177 int ctrl_grab = 0;
178 unsigned int nb_prom_envs = 0;
179 const char *prom_envs[MAX_PROM_ENVS];
180 int boot_menu;
181 bool boot_strict;
182 uint8_t *boot_splash_filedata;
183 size_t boot_splash_filedata_size;
184 uint8_t qemu_extra_params_fw[2];
185
186 int icount_align_option;
187
188 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
189 * little-endian "wire format" described in the SMBIOS 2.6 specification.
190 */
191 QemuUUID qemu_uuid;
192 bool qemu_uuid_set;
193
194 static NotifierList exit_notifiers =
195 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
196
197 static NotifierList machine_init_done_notifiers =
198 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
199
200 bool xen_allowed;
201 uint32_t xen_domid;
202 enum xen_mode xen_mode = XEN_EMULATE;
203 bool xen_domid_restrict;
204
205 static int has_defaults = 1;
206 static int default_serial = 1;
207 static int default_parallel = 1;
208 static int default_virtcon = 1;
209 static int default_sclp = 1;
210 static int default_monitor = 1;
211 static int default_floppy = 1;
212 static int default_cdrom = 1;
213 static int default_sdcard = 1;
214 static int default_vga = 1;
215 static int default_net = 1;
216
217 static struct {
218 const char *driver;
219 int *flag;
220 } default_list[] = {
221 { .driver = "isa-serial", .flag = &default_serial },
222 { .driver = "isa-parallel", .flag = &default_parallel },
223 { .driver = "isa-fdc", .flag = &default_floppy },
224 { .driver = "floppy", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .flag = &default_cdrom },
229 { .driver = "scsi-hd", .flag = &default_cdrom },
230 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
231 { .driver = "virtio-serial", .flag = &default_virtcon },
232 { .driver = "VGA", .flag = &default_vga },
233 { .driver = "isa-vga", .flag = &default_vga },
234 { .driver = "cirrus-vga", .flag = &default_vga },
235 { .driver = "isa-cirrus-vga", .flag = &default_vga },
236 { .driver = "vmware-svga", .flag = &default_vga },
237 { .driver = "qxl-vga", .flag = &default_vga },
238 { .driver = "virtio-vga", .flag = &default_vga },
239 };
240
241 static QemuOptsList qemu_rtc_opts = {
242 .name = "rtc",
243 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
244 .desc = {
245 {
246 .name = "base",
247 .type = QEMU_OPT_STRING,
248 },{
249 .name = "clock",
250 .type = QEMU_OPT_STRING,
251 },{
252 .name = "driftfix",
253 .type = QEMU_OPT_STRING,
254 },
255 { /* end of list */ }
256 },
257 };
258
259 static QemuOptsList qemu_sandbox_opts = {
260 .name = "sandbox",
261 .implied_opt_name = "enable",
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
263 .desc = {
264 {
265 .name = "enable",
266 .type = QEMU_OPT_BOOL,
267 },
268 {
269 .name = "obsolete",
270 .type = QEMU_OPT_STRING,
271 },
272 {
273 .name = "elevateprivileges",
274 .type = QEMU_OPT_STRING,
275 },
276 {
277 .name = "spawn",
278 .type = QEMU_OPT_STRING,
279 },
280 {
281 .name = "resourcecontrol",
282 .type = QEMU_OPT_STRING,
283 },
284 { /* end of list */ }
285 },
286 };
287
288 static QemuOptsList qemu_option_rom_opts = {
289 .name = "option-rom",
290 .implied_opt_name = "romfile",
291 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
292 .desc = {
293 {
294 .name = "bootindex",
295 .type = QEMU_OPT_NUMBER,
296 }, {
297 .name = "romfile",
298 .type = QEMU_OPT_STRING,
299 },
300 { /* end of list */ }
301 },
302 };
303
304 static QemuOptsList qemu_machine_opts = {
305 .name = "machine",
306 .implied_opt_name = "type",
307 .merge_lists = true,
308 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
309 .desc = {
310 /*
311 * no elements => accept any
312 * sanity checking will happen later
313 * when setting machine properties
314 */
315 { }
316 },
317 };
318
319 static QemuOptsList qemu_accel_opts = {
320 .name = "accel",
321 .implied_opt_name = "accel",
322 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
323 .merge_lists = true,
324 .desc = {
325 {
326 .name = "accel",
327 .type = QEMU_OPT_STRING,
328 .help = "Select the type of accelerator",
329 },
330 {
331 .name = "thread",
332 .type = QEMU_OPT_STRING,
333 .help = "Enable/disable multi-threaded TCG",
334 },
335 { /* end of list */ }
336 },
337 };
338
339 static QemuOptsList qemu_boot_opts = {
340 .name = "boot-opts",
341 .implied_opt_name = "order",
342 .merge_lists = true,
343 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
344 .desc = {
345 {
346 .name = "order",
347 .type = QEMU_OPT_STRING,
348 }, {
349 .name = "once",
350 .type = QEMU_OPT_STRING,
351 }, {
352 .name = "menu",
353 .type = QEMU_OPT_BOOL,
354 }, {
355 .name = "splash",
356 .type = QEMU_OPT_STRING,
357 }, {
358 .name = "splash-time",
359 .type = QEMU_OPT_STRING,
360 }, {
361 .name = "reboot-timeout",
362 .type = QEMU_OPT_STRING,
363 }, {
364 .name = "strict",
365 .type = QEMU_OPT_BOOL,
366 },
367 { /*End of list */ }
368 },
369 };
370
371 static QemuOptsList qemu_add_fd_opts = {
372 .name = "add-fd",
373 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
374 .desc = {
375 {
376 .name = "fd",
377 .type = QEMU_OPT_NUMBER,
378 .help = "file descriptor of which a duplicate is added to fd set",
379 },{
380 .name = "set",
381 .type = QEMU_OPT_NUMBER,
382 .help = "ID of the fd set to add fd to",
383 },{
384 .name = "opaque",
385 .type = QEMU_OPT_STRING,
386 .help = "free-form string used to describe fd",
387 },
388 { /* end of list */ }
389 },
390 };
391
392 static QemuOptsList qemu_object_opts = {
393 .name = "object",
394 .implied_opt_name = "qom-type",
395 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
396 .desc = {
397 { }
398 },
399 };
400
401 static QemuOptsList qemu_tpmdev_opts = {
402 .name = "tpmdev",
403 .implied_opt_name = "type",
404 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
405 .desc = {
406 /* options are defined in the TPM backends */
407 { /* end of list */ }
408 },
409 };
410
411 static QemuOptsList qemu_realtime_opts = {
412 .name = "realtime",
413 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
414 .desc = {
415 {
416 .name = "mlock",
417 .type = QEMU_OPT_BOOL,
418 },
419 { /* end of list */ }
420 },
421 };
422
423 static QemuOptsList qemu_msg_opts = {
424 .name = "msg",
425 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
426 .desc = {
427 {
428 .name = "timestamp",
429 .type = QEMU_OPT_BOOL,
430 },
431 { /* end of list */ }
432 },
433 };
434
435 static QemuOptsList qemu_name_opts = {
436 .name = "name",
437 .implied_opt_name = "guest",
438 .merge_lists = true,
439 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
440 .desc = {
441 {
442 .name = "guest",
443 .type = QEMU_OPT_STRING,
444 .help = "Sets the name of the guest.\n"
445 "This name will be displayed in the SDL window caption.\n"
446 "The name will also be used for the VNC server",
447 }, {
448 .name = "process",
449 .type = QEMU_OPT_STRING,
450 .help = "Sets the name of the QEMU process, as shown in top etc",
451 }, {
452 .name = "debug-threads",
453 .type = QEMU_OPT_BOOL,
454 .help = "When enabled, name the individual threads; defaults off.\n"
455 "NOTE: The thread names are for debugging and not a\n"
456 "stable API.",
457 },
458 { /* End of list */ }
459 },
460 };
461
462 static QemuOptsList qemu_mem_opts = {
463 .name = "memory",
464 .implied_opt_name = "size",
465 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
466 .merge_lists = true,
467 .desc = {
468 {
469 .name = "size",
470 .type = QEMU_OPT_SIZE,
471 },
472 {
473 .name = "slots",
474 .type = QEMU_OPT_NUMBER,
475 },
476 {
477 .name = "maxmem",
478 .type = QEMU_OPT_SIZE,
479 },
480 { /* end of list */ }
481 },
482 };
483
484 static QemuOptsList qemu_icount_opts = {
485 .name = "icount",
486 .implied_opt_name = "shift",
487 .merge_lists = true,
488 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
489 .desc = {
490 {
491 .name = "shift",
492 .type = QEMU_OPT_STRING,
493 }, {
494 .name = "align",
495 .type = QEMU_OPT_BOOL,
496 }, {
497 .name = "sleep",
498 .type = QEMU_OPT_BOOL,
499 }, {
500 .name = "rr",
501 .type = QEMU_OPT_STRING,
502 }, {
503 .name = "rrfile",
504 .type = QEMU_OPT_STRING,
505 }, {
506 .name = "rrsnapshot",
507 .type = QEMU_OPT_STRING,
508 },
509 { /* end of list */ }
510 },
511 };
512
513 static QemuOptsList qemu_semihosting_config_opts = {
514 .name = "semihosting-config",
515 .implied_opt_name = "enable",
516 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
517 .desc = {
518 {
519 .name = "enable",
520 .type = QEMU_OPT_BOOL,
521 }, {
522 .name = "target",
523 .type = QEMU_OPT_STRING,
524 }, {
525 .name = "arg",
526 .type = QEMU_OPT_STRING,
527 },
528 { /* end of list */ }
529 },
530 };
531
532 static QemuOptsList qemu_fw_cfg_opts = {
533 .name = "fw_cfg",
534 .implied_opt_name = "name",
535 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
536 .desc = {
537 {
538 .name = "name",
539 .type = QEMU_OPT_STRING,
540 .help = "Sets the fw_cfg name of the blob to be inserted",
541 }, {
542 .name = "file",
543 .type = QEMU_OPT_STRING,
544 .help = "Sets the name of the file from which\n"
545 "the fw_cfg blob will be loaded",
546 }, {
547 .name = "string",
548 .type = QEMU_OPT_STRING,
549 .help = "Sets content of the blob to be inserted from a string",
550 },
551 { /* end of list */ }
552 },
553 };
554
555 /**
556 * Get machine options
557 *
558 * Returns: machine options (never null).
559 */
560 QemuOpts *qemu_get_machine_opts(void)
561 {
562 return qemu_find_opts_singleton("machine");
563 }
564
565 const char *qemu_get_vm_name(void)
566 {
567 return qemu_name;
568 }
569
570 static void res_free(void)
571 {
572 g_free(boot_splash_filedata);
573 boot_splash_filedata = NULL;
574 }
575
576 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
577 {
578 const char *driver = qemu_opt_get(opts, "driver");
579 int i;
580
581 if (!driver)
582 return 0;
583 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
584 if (strcmp(default_list[i].driver, driver) != 0)
585 continue;
586 *(default_list[i].flag) = 0;
587 }
588 return 0;
589 }
590
591 /***********************************************************/
592 /* QEMU state */
593
594 static RunState current_run_state = RUN_STATE_PRELAUNCH;
595
596 /* We use RUN_STATE__MAX but any invalid value will do */
597 static RunState vmstop_requested = RUN_STATE__MAX;
598 static QemuMutex vmstop_lock;
599
600 typedef struct {
601 RunState from;
602 RunState to;
603 } RunStateTransition;
604
605 static const RunStateTransition runstate_transitions_def[] = {
606 /* from -> to */
607 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
608 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
609 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
610
611 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
612 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
613 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
614 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
615 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
616 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
617 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
618 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
619 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
621 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
622 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
623
624 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
625 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
626 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
627
628 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
629 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
630 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
631
632 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
633 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
635 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
636 { RUN_STATE_PAUSED, RUN_STATE_COLO},
637
638 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
639 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
640 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
641
642 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
643 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
645
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
647 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
648 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
649 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
651
652 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
653 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
654
655 { RUN_STATE_COLO, RUN_STATE_RUNNING },
656
657 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
658 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
659 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
660 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
661 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
662 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
663 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
664 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
665 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
666 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
667 { RUN_STATE_RUNNING, RUN_STATE_COLO},
668
669 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
670
671 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
672 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
673 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
674
675 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
676 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
677 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
678 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
679 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
680 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
681
682 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
683 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
684 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
685 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
686
687 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
688 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
689 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
690
691 { RUN_STATE__MAX, RUN_STATE__MAX },
692 };
693
694 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
695
696 bool runstate_check(RunState state)
697 {
698 return current_run_state == state;
699 }
700
701 bool runstate_store(char *str, size_t size)
702 {
703 const char *state = RunState_str(current_run_state);
704 size_t len = strlen(state) + 1;
705
706 if (len > size) {
707 return false;
708 }
709 memcpy(str, state, len);
710 return true;
711 }
712
713 static void runstate_init(void)
714 {
715 const RunStateTransition *p;
716
717 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
718 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
719 runstate_valid_transitions[p->from][p->to] = true;
720 }
721
722 qemu_mutex_init(&vmstop_lock);
723 }
724
725 /* This function will abort() on invalid state transitions */
726 void runstate_set(RunState new_state)
727 {
728 assert(new_state < RUN_STATE__MAX);
729
730 if (current_run_state == new_state) {
731 return;
732 }
733
734 if (!runstate_valid_transitions[current_run_state][new_state]) {
735 error_report("invalid runstate transition: '%s' -> '%s'",
736 RunState_str(current_run_state),
737 RunState_str(new_state));
738 abort();
739 }
740 trace_runstate_set(new_state);
741 current_run_state = new_state;
742 }
743
744 int runstate_is_running(void)
745 {
746 return runstate_check(RUN_STATE_RUNNING);
747 }
748
749 bool runstate_needs_reset(void)
750 {
751 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
752 runstate_check(RUN_STATE_SHUTDOWN);
753 }
754
755 StatusInfo *qmp_query_status(Error **errp)
756 {
757 StatusInfo *info = g_malloc0(sizeof(*info));
758
759 info->running = runstate_is_running();
760 info->singlestep = singlestep;
761 info->status = current_run_state;
762
763 return info;
764 }
765
766 bool qemu_vmstop_requested(RunState *r)
767 {
768 qemu_mutex_lock(&vmstop_lock);
769 *r = vmstop_requested;
770 vmstop_requested = RUN_STATE__MAX;
771 qemu_mutex_unlock(&vmstop_lock);
772 return *r < RUN_STATE__MAX;
773 }
774
775 void qemu_system_vmstop_request_prepare(void)
776 {
777 qemu_mutex_lock(&vmstop_lock);
778 }
779
780 void qemu_system_vmstop_request(RunState state)
781 {
782 vmstop_requested = state;
783 qemu_mutex_unlock(&vmstop_lock);
784 qemu_notify_event();
785 }
786
787 /***********************************************************/
788 /* real time host monotonic timer */
789
790 static time_t qemu_time(void)
791 {
792 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
793 }
794
795 /***********************************************************/
796 /* host time/date access */
797 void qemu_get_timedate(struct tm *tm, int offset)
798 {
799 time_t ti = qemu_time();
800
801 ti += offset;
802 if (rtc_date_offset == -1) {
803 if (rtc_utc)
804 gmtime_r(&ti, tm);
805 else
806 localtime_r(&ti, tm);
807 } else {
808 ti -= rtc_date_offset;
809 gmtime_r(&ti, tm);
810 }
811 }
812
813 int qemu_timedate_diff(struct tm *tm)
814 {
815 time_t seconds;
816
817 if (rtc_date_offset == -1)
818 if (rtc_utc)
819 seconds = mktimegm(tm);
820 else {
821 struct tm tmp = *tm;
822 tmp.tm_isdst = -1; /* use timezone to figure it out */
823 seconds = mktime(&tmp);
824 }
825 else
826 seconds = mktimegm(tm) + rtc_date_offset;
827
828 return seconds - qemu_time();
829 }
830
831 static void configure_rtc_date_offset(const char *startdate, int legacy)
832 {
833 time_t rtc_start_date;
834 struct tm tm;
835
836 if (!strcmp(startdate, "now") && legacy) {
837 rtc_date_offset = -1;
838 } else {
839 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
840 &tm.tm_year,
841 &tm.tm_mon,
842 &tm.tm_mday,
843 &tm.tm_hour,
844 &tm.tm_min,
845 &tm.tm_sec) == 6) {
846 /* OK */
847 } else if (sscanf(startdate, "%d-%d-%d",
848 &tm.tm_year,
849 &tm.tm_mon,
850 &tm.tm_mday) == 3) {
851 tm.tm_hour = 0;
852 tm.tm_min = 0;
853 tm.tm_sec = 0;
854 } else {
855 goto date_fail;
856 }
857 tm.tm_year -= 1900;
858 tm.tm_mon--;
859 rtc_start_date = mktimegm(&tm);
860 if (rtc_start_date == -1) {
861 date_fail:
862 error_report("invalid date format");
863 error_printf("valid formats: "
864 "'2006-06-17T16:01:21' or '2006-06-17'\n");
865 exit(1);
866 }
867 rtc_date_offset = qemu_time() - rtc_start_date;
868 }
869 }
870
871 static void configure_rtc(QemuOpts *opts)
872 {
873 const char *value;
874
875 value = qemu_opt_get(opts, "base");
876 if (value) {
877 if (!strcmp(value, "utc")) {
878 rtc_utc = 1;
879 } else if (!strcmp(value, "localtime")) {
880 Error *blocker = NULL;
881 rtc_utc = 0;
882 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
883 "-rtc base=localtime");
884 replay_add_blocker(blocker);
885 } else {
886 configure_rtc_date_offset(value, 0);
887 }
888 }
889 value = qemu_opt_get(opts, "clock");
890 if (value) {
891 if (!strcmp(value, "host")) {
892 rtc_clock = QEMU_CLOCK_HOST;
893 } else if (!strcmp(value, "rt")) {
894 rtc_clock = QEMU_CLOCK_REALTIME;
895 } else if (!strcmp(value, "vm")) {
896 rtc_clock = QEMU_CLOCK_VIRTUAL;
897 } else {
898 error_report("invalid option value '%s'", value);
899 exit(1);
900 }
901 }
902 value = qemu_opt_get(opts, "driftfix");
903 if (value) {
904 if (!strcmp(value, "slew")) {
905 static GlobalProperty slew_lost_ticks = {
906 .driver = "mc146818rtc",
907 .property = "lost_tick_policy",
908 .value = "slew",
909 };
910
911 qdev_prop_register_global(&slew_lost_ticks);
912 } else if (!strcmp(value, "none")) {
913 /* discard is default */
914 } else {
915 error_report("invalid option value '%s'", value);
916 exit(1);
917 }
918 }
919 }
920
921 /***********************************************************/
922 /* Bluetooth support */
923 static int nb_hcis;
924 static int cur_hci;
925 static struct HCIInfo *hci_table[MAX_NICS];
926
927 struct HCIInfo *qemu_next_hci(void)
928 {
929 if (cur_hci == nb_hcis)
930 return &null_hci;
931
932 return hci_table[cur_hci++];
933 }
934
935 static int bt_hci_parse(const char *str)
936 {
937 struct HCIInfo *hci;
938 bdaddr_t bdaddr;
939
940 if (nb_hcis >= MAX_NICS) {
941 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
942 return -1;
943 }
944
945 hci = hci_init(str);
946 if (!hci)
947 return -1;
948
949 bdaddr.b[0] = 0x52;
950 bdaddr.b[1] = 0x54;
951 bdaddr.b[2] = 0x00;
952 bdaddr.b[3] = 0x12;
953 bdaddr.b[4] = 0x34;
954 bdaddr.b[5] = 0x56 + nb_hcis;
955 hci->bdaddr_set(hci, bdaddr.b);
956
957 hci_table[nb_hcis++] = hci;
958
959 return 0;
960 }
961
962 static void bt_vhci_add(int vlan_id)
963 {
964 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
965
966 if (!vlan->slave)
967 warn_report("adding a VHCI to an empty scatternet %i",
968 vlan_id);
969
970 bt_vhci_init(bt_new_hci(vlan));
971 }
972
973 static struct bt_device_s *bt_device_add(const char *opt)
974 {
975 struct bt_scatternet_s *vlan;
976 int vlan_id = 0;
977 char *endp = strstr(opt, ",vlan=");
978 int len = (endp ? endp - opt : strlen(opt)) + 1;
979 char devname[10];
980
981 pstrcpy(devname, MIN(sizeof(devname), len), opt);
982
983 if (endp) {
984 vlan_id = strtol(endp + 6, &endp, 0);
985 if (*endp) {
986 error_report("unrecognised bluetooth vlan Id");
987 return 0;
988 }
989 }
990
991 vlan = qemu_find_bt_vlan(vlan_id);
992
993 if (!vlan->slave)
994 warn_report("adding a slave device to an empty scatternet %i",
995 vlan_id);
996
997 if (!strcmp(devname, "keyboard"))
998 return bt_keyboard_init(vlan);
999
1000 error_report("unsupported bluetooth device '%s'", devname);
1001 return 0;
1002 }
1003
1004 static int bt_parse(const char *opt)
1005 {
1006 const char *endp, *p;
1007 int vlan;
1008
1009 if (strstart(opt, "hci", &endp)) {
1010 if (!*endp || *endp == ',') {
1011 if (*endp)
1012 if (!strstart(endp, ",vlan=", 0))
1013 opt = endp + 1;
1014
1015 return bt_hci_parse(opt);
1016 }
1017 } else if (strstart(opt, "vhci", &endp)) {
1018 if (!*endp || *endp == ',') {
1019 if (*endp) {
1020 if (strstart(endp, ",vlan=", &p)) {
1021 vlan = strtol(p, (char **) &endp, 0);
1022 if (*endp) {
1023 error_report("bad scatternet '%s'", p);
1024 return 1;
1025 }
1026 } else {
1027 error_report("bad parameter '%s'", endp + 1);
1028 return 1;
1029 }
1030 } else
1031 vlan = 0;
1032
1033 bt_vhci_add(vlan);
1034 return 0;
1035 }
1036 } else if (strstart(opt, "device:", &endp))
1037 return !bt_device_add(endp);
1038
1039 error_report("bad bluetooth parameter '%s'", opt);
1040 return 1;
1041 }
1042
1043 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1044 {
1045 if (qemu_opt_get_bool(opts, "enable", false)) {
1046 #ifdef CONFIG_SECCOMP
1047 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1048 | QEMU_SECCOMP_SET_OBSOLETE;
1049 const char *value = NULL;
1050
1051 value = qemu_opt_get(opts, "obsolete");
1052 if (value) {
1053 if (g_str_equal(value, "allow")) {
1054 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1055 } else if (g_str_equal(value, "deny")) {
1056 /* this is the default option, this if is here
1057 * to provide a little bit of consistency for
1058 * the command line */
1059 } else {
1060 error_report("invalid argument for obsolete");
1061 return -1;
1062 }
1063 }
1064
1065 value = qemu_opt_get(opts, "elevateprivileges");
1066 if (value) {
1067 if (g_str_equal(value, "deny")) {
1068 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1069 } else if (g_str_equal(value, "children")) {
1070 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1071
1072 /* calling prctl directly because we're
1073 * not sure if host has CAP_SYS_ADMIN set*/
1074 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1075 error_report("failed to set no_new_privs "
1076 "aborting");
1077 return -1;
1078 }
1079 } else if (g_str_equal(value, "allow")) {
1080 /* default value */
1081 } else {
1082 error_report("invalid argument for elevateprivileges");
1083 return -1;
1084 }
1085 }
1086
1087 value = qemu_opt_get(opts, "spawn");
1088 if (value) {
1089 if (g_str_equal(value, "deny")) {
1090 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1091 } else if (g_str_equal(value, "allow")) {
1092 /* default value */
1093 } else {
1094 error_report("invalid argument for spawn");
1095 return -1;
1096 }
1097 }
1098
1099 value = qemu_opt_get(opts, "resourcecontrol");
1100 if (value) {
1101 if (g_str_equal(value, "deny")) {
1102 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1103 } else if (g_str_equal(value, "allow")) {
1104 /* default value */
1105 } else {
1106 error_report("invalid argument for resourcecontrol");
1107 return -1;
1108 }
1109 }
1110
1111 if (seccomp_start(seccomp_opts) < 0) {
1112 error_report("failed to install seccomp syscall filter "
1113 "in the kernel");
1114 return -1;
1115 }
1116 #else
1117 error_report("seccomp support is disabled");
1118 return -1;
1119 #endif
1120 }
1121
1122 return 0;
1123 }
1124
1125 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1126 {
1127 const char *proc_name;
1128
1129 if (qemu_opt_get(opts, "debug-threads")) {
1130 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1131 }
1132 qemu_name = qemu_opt_get(opts, "guest");
1133
1134 proc_name = qemu_opt_get(opts, "process");
1135 if (proc_name) {
1136 os_set_proc_name(proc_name);
1137 }
1138
1139 return 0;
1140 }
1141
1142 bool defaults_enabled(void)
1143 {
1144 return has_defaults;
1145 }
1146
1147 #ifndef _WIN32
1148 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1149 {
1150 int fd, dupfd, flags;
1151 int64_t fdset_id;
1152 const char *fd_opaque = NULL;
1153 AddfdInfo *fdinfo;
1154
1155 fd = qemu_opt_get_number(opts, "fd", -1);
1156 fdset_id = qemu_opt_get_number(opts, "set", -1);
1157 fd_opaque = qemu_opt_get(opts, "opaque");
1158
1159 if (fd < 0) {
1160 error_report("fd option is required and must be non-negative");
1161 return -1;
1162 }
1163
1164 if (fd <= STDERR_FILENO) {
1165 error_report("fd cannot be a standard I/O stream");
1166 return -1;
1167 }
1168
1169 /*
1170 * All fds inherited across exec() necessarily have FD_CLOEXEC
1171 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1172 */
1173 flags = fcntl(fd, F_GETFD);
1174 if (flags == -1 || (flags & FD_CLOEXEC)) {
1175 error_report("fd is not valid or already in use");
1176 return -1;
1177 }
1178
1179 if (fdset_id < 0) {
1180 error_report("set option is required and must be non-negative");
1181 return -1;
1182 }
1183
1184 #ifdef F_DUPFD_CLOEXEC
1185 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1186 #else
1187 dupfd = dup(fd);
1188 if (dupfd != -1) {
1189 qemu_set_cloexec(dupfd);
1190 }
1191 #endif
1192 if (dupfd == -1) {
1193 error_report("error duplicating fd: %s", strerror(errno));
1194 return -1;
1195 }
1196
1197 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1198 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1199 &error_abort);
1200 g_free(fdinfo);
1201
1202 return 0;
1203 }
1204
1205 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1206 {
1207 int fd;
1208
1209 fd = qemu_opt_get_number(opts, "fd", -1);
1210 close(fd);
1211
1212 return 0;
1213 }
1214 #endif
1215
1216 /***********************************************************/
1217 /* QEMU Block devices */
1218
1219 #define HD_OPTS "media=disk"
1220 #define CDROM_OPTS "media=cdrom"
1221 #define FD_OPTS ""
1222 #define PFLASH_OPTS ""
1223 #define MTD_OPTS ""
1224 #define SD_OPTS ""
1225
1226 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1227 {
1228 BlockInterfaceType *block_default_type = opaque;
1229
1230 return drive_new(opts, *block_default_type) == NULL;
1231 }
1232
1233 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1234 {
1235 if (qemu_opt_get(opts, "snapshot") == NULL) {
1236 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1237 }
1238 return 0;
1239 }
1240
1241 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1242 int index, const char *optstr)
1243 {
1244 QemuOpts *opts;
1245 DriveInfo *dinfo;
1246
1247 if (!enable || drive_get_by_index(type, index)) {
1248 return;
1249 }
1250
1251 opts = drive_add(type, index, NULL, optstr);
1252 if (snapshot) {
1253 drive_enable_snapshot(NULL, opts, NULL);
1254 }
1255
1256 dinfo = drive_new(opts, type);
1257 if (!dinfo) {
1258 exit(1);
1259 }
1260 dinfo->is_default = true;
1261
1262 }
1263
1264 static QemuOptsList qemu_smp_opts = {
1265 .name = "smp-opts",
1266 .implied_opt_name = "cpus",
1267 .merge_lists = true,
1268 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1269 .desc = {
1270 {
1271 .name = "cpus",
1272 .type = QEMU_OPT_NUMBER,
1273 }, {
1274 .name = "sockets",
1275 .type = QEMU_OPT_NUMBER,
1276 }, {
1277 .name = "cores",
1278 .type = QEMU_OPT_NUMBER,
1279 }, {
1280 .name = "threads",
1281 .type = QEMU_OPT_NUMBER,
1282 }, {
1283 .name = "maxcpus",
1284 .type = QEMU_OPT_NUMBER,
1285 },
1286 { /*End of list */ }
1287 },
1288 };
1289
1290 static void smp_parse(QemuOpts *opts)
1291 {
1292 if (opts) {
1293 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1294 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1295 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1296 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1297
1298 /* compute missing values, prefer sockets over cores over threads */
1299 if (cpus == 0 || sockets == 0) {
1300 sockets = sockets > 0 ? sockets : 1;
1301 cores = cores > 0 ? cores : 1;
1302 threads = threads > 0 ? threads : 1;
1303 if (cpus == 0) {
1304 cpus = cores * threads * sockets;
1305 }
1306 } else if (cores == 0) {
1307 threads = threads > 0 ? threads : 1;
1308 cores = cpus / (sockets * threads);
1309 cores = cores > 0 ? cores : 1;
1310 } else if (threads == 0) {
1311 threads = cpus / (cores * sockets);
1312 threads = threads > 0 ? threads : 1;
1313 } else if (sockets * cores * threads < cpus) {
1314 error_report("cpu topology: "
1315 "sockets (%u) * cores (%u) * threads (%u) < "
1316 "smp_cpus (%u)",
1317 sockets, cores, threads, cpus);
1318 exit(1);
1319 }
1320
1321 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1322
1323 if (max_cpus < cpus) {
1324 error_report("maxcpus must be equal to or greater than smp");
1325 exit(1);
1326 }
1327
1328 if (sockets * cores * threads > max_cpus) {
1329 error_report("cpu topology: "
1330 "sockets (%u) * cores (%u) * threads (%u) > "
1331 "maxcpus (%u)",
1332 sockets, cores, threads, max_cpus);
1333 exit(1);
1334 }
1335
1336 smp_cpus = cpus;
1337 smp_cores = cores;
1338 smp_threads = threads;
1339 }
1340
1341 if (smp_cpus > 1) {
1342 Error *blocker = NULL;
1343 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1344 replay_add_blocker(blocker);
1345 }
1346 }
1347
1348 static void realtime_init(void)
1349 {
1350 if (enable_mlock) {
1351 if (os_mlock() < 0) {
1352 error_report("locking memory failed");
1353 exit(1);
1354 }
1355 }
1356 }
1357
1358
1359 static void configure_msg(QemuOpts *opts)
1360 {
1361 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1362 }
1363
1364 /***********************************************************/
1365 /* Semihosting */
1366
1367 typedef struct SemihostingConfig {
1368 bool enabled;
1369 SemihostingTarget target;
1370 const char **argv;
1371 int argc;
1372 const char *cmdline; /* concatenated argv */
1373 } SemihostingConfig;
1374
1375 static SemihostingConfig semihosting;
1376
1377 bool semihosting_enabled(void)
1378 {
1379 return semihosting.enabled;
1380 }
1381
1382 SemihostingTarget semihosting_get_target(void)
1383 {
1384 return semihosting.target;
1385 }
1386
1387 const char *semihosting_get_arg(int i)
1388 {
1389 if (i >= semihosting.argc) {
1390 return NULL;
1391 }
1392 return semihosting.argv[i];
1393 }
1394
1395 int semihosting_get_argc(void)
1396 {
1397 return semihosting.argc;
1398 }
1399
1400 const char *semihosting_get_cmdline(void)
1401 {
1402 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1403 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1404 }
1405 return semihosting.cmdline;
1406 }
1407
1408 static int add_semihosting_arg(void *opaque,
1409 const char *name, const char *val,
1410 Error **errp)
1411 {
1412 SemihostingConfig *s = opaque;
1413 if (strcmp(name, "arg") == 0) {
1414 s->argc++;
1415 /* one extra element as g_strjoinv() expects NULL-terminated array */
1416 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1417 s->argv[s->argc - 1] = val;
1418 s->argv[s->argc] = NULL;
1419 }
1420 return 0;
1421 }
1422
1423 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1424 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1425 {
1426 char *cmd_token;
1427
1428 /* argv[0] */
1429 add_semihosting_arg(&semihosting, "arg", file, NULL);
1430
1431 /* split -append and initialize argv[1..n] */
1432 cmd_token = strtok(g_strdup(cmd), " ");
1433 while (cmd_token) {
1434 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1435 cmd_token = strtok(NULL, " ");
1436 }
1437 }
1438
1439 /* Now we still need this for compatibility with XEN. */
1440 bool has_igd_gfx_passthru;
1441 static void igd_gfx_passthru(void)
1442 {
1443 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1444 }
1445
1446 /***********************************************************/
1447 /* USB devices */
1448
1449 static int usb_device_add(const char *devname)
1450 {
1451 USBDevice *dev = NULL;
1452
1453 if (!machine_usb(current_machine)) {
1454 return -1;
1455 }
1456
1457 dev = usbdevice_create(devname);
1458 if (!dev)
1459 return -1;
1460
1461 return 0;
1462 }
1463
1464 static int usb_parse(const char *cmdline)
1465 {
1466 int r;
1467 r = usb_device_add(cmdline);
1468 if (r < 0) {
1469 error_report("could not add USB device '%s'", cmdline);
1470 }
1471 return r;
1472 }
1473
1474 /***********************************************************/
1475 /* machine registration */
1476
1477 MachineState *current_machine;
1478
1479 static MachineClass *find_machine(const char *name)
1480 {
1481 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1482 MachineClass *mc = NULL;
1483
1484 for (el = machines; el; el = el->next) {
1485 MachineClass *temp = el->data;
1486
1487 if (!strcmp(temp->name, name)) {
1488 mc = temp;
1489 break;
1490 }
1491 if (temp->alias &&
1492 !strcmp(temp->alias, name)) {
1493 mc = temp;
1494 break;
1495 }
1496 }
1497
1498 g_slist_free(machines);
1499 return mc;
1500 }
1501
1502 MachineClass *find_default_machine(void)
1503 {
1504 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1505 MachineClass *mc = NULL;
1506
1507 for (el = machines; el; el = el->next) {
1508 MachineClass *temp = el->data;
1509
1510 if (temp->is_default) {
1511 mc = temp;
1512 break;
1513 }
1514 }
1515
1516 g_slist_free(machines);
1517 return mc;
1518 }
1519
1520 MachineInfoList *qmp_query_machines(Error **errp)
1521 {
1522 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1523 MachineInfoList *mach_list = NULL;
1524
1525 for (el = machines; el; el = el->next) {
1526 MachineClass *mc = el->data;
1527 MachineInfoList *entry;
1528 MachineInfo *info;
1529
1530 info = g_malloc0(sizeof(*info));
1531 if (mc->is_default) {
1532 info->has_is_default = true;
1533 info->is_default = true;
1534 }
1535
1536 if (mc->alias) {
1537 info->has_alias = true;
1538 info->alias = g_strdup(mc->alias);
1539 }
1540
1541 info->name = g_strdup(mc->name);
1542 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1543 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1544
1545 entry = g_malloc0(sizeof(*entry));
1546 entry->value = info;
1547 entry->next = mach_list;
1548 mach_list = entry;
1549 }
1550
1551 g_slist_free(machines);
1552 return mach_list;
1553 }
1554
1555 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1556 {
1557 ObjectProperty *prop;
1558 ObjectPropertyIterator iter;
1559
1560 if (!qemu_opt_has_help_opt(opts)) {
1561 return 0;
1562 }
1563
1564 object_property_iter_init(&iter, OBJECT(machine));
1565 while ((prop = object_property_iter_next(&iter))) {
1566 if (!prop->set) {
1567 continue;
1568 }
1569
1570 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1571 prop->name, prop->type);
1572 if (prop->description) {
1573 error_printf(" (%s)\n", prop->description);
1574 } else {
1575 error_printf("\n");
1576 }
1577 }
1578
1579 return 1;
1580 }
1581
1582 /***********************************************************/
1583 /* main execution loop */
1584
1585 struct vm_change_state_entry {
1586 VMChangeStateHandler *cb;
1587 void *opaque;
1588 QLIST_ENTRY (vm_change_state_entry) entries;
1589 };
1590
1591 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1592
1593 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1594 void *opaque)
1595 {
1596 VMChangeStateEntry *e;
1597
1598 e = g_malloc0(sizeof (*e));
1599
1600 e->cb = cb;
1601 e->opaque = opaque;
1602 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1603 return e;
1604 }
1605
1606 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1607 {
1608 QLIST_REMOVE (e, entries);
1609 g_free (e);
1610 }
1611
1612 void vm_state_notify(int running, RunState state)
1613 {
1614 VMChangeStateEntry *e, *next;
1615
1616 trace_vm_state_notify(running, state);
1617
1618 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1619 e->cb(e->opaque, running, state);
1620 }
1621 }
1622
1623 static ShutdownCause reset_requested;
1624 static ShutdownCause shutdown_requested;
1625 static int shutdown_signal;
1626 static pid_t shutdown_pid;
1627 static int powerdown_requested;
1628 static int debug_requested;
1629 static int suspend_requested;
1630 static WakeupReason wakeup_reason;
1631 static NotifierList powerdown_notifiers =
1632 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1633 static NotifierList suspend_notifiers =
1634 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1635 static NotifierList wakeup_notifiers =
1636 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1637 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1638
1639 ShutdownCause qemu_shutdown_requested_get(void)
1640 {
1641 return shutdown_requested;
1642 }
1643
1644 ShutdownCause qemu_reset_requested_get(void)
1645 {
1646 return reset_requested;
1647 }
1648
1649 static int qemu_shutdown_requested(void)
1650 {
1651 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1652 }
1653
1654 static void qemu_kill_report(void)
1655 {
1656 if (!qtest_driver() && shutdown_signal) {
1657 if (shutdown_pid == 0) {
1658 /* This happens for eg ^C at the terminal, so it's worth
1659 * avoiding printing an odd message in that case.
1660 */
1661 error_report("terminating on signal %d", shutdown_signal);
1662 } else {
1663 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1664
1665 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1666 shutdown_signal, shutdown_pid,
1667 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1668 g_free(shutdown_cmd);
1669 }
1670 shutdown_signal = 0;
1671 }
1672 }
1673
1674 static ShutdownCause qemu_reset_requested(void)
1675 {
1676 ShutdownCause r = reset_requested;
1677
1678 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1679 reset_requested = SHUTDOWN_CAUSE_NONE;
1680 return r;
1681 }
1682 return SHUTDOWN_CAUSE_NONE;
1683 }
1684
1685 static int qemu_suspend_requested(void)
1686 {
1687 int r = suspend_requested;
1688 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1689 suspend_requested = 0;
1690 return r;
1691 }
1692 return false;
1693 }
1694
1695 static WakeupReason qemu_wakeup_requested(void)
1696 {
1697 return wakeup_reason;
1698 }
1699
1700 static int qemu_powerdown_requested(void)
1701 {
1702 int r = powerdown_requested;
1703 powerdown_requested = 0;
1704 return r;
1705 }
1706
1707 static int qemu_debug_requested(void)
1708 {
1709 int r = debug_requested;
1710 debug_requested = 0;
1711 return r;
1712 }
1713
1714 /*
1715 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1716 */
1717 void qemu_system_reset(ShutdownCause reason)
1718 {
1719 MachineClass *mc;
1720
1721 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1722
1723 cpu_synchronize_all_states();
1724
1725 if (mc && mc->reset) {
1726 mc->reset();
1727 } else {
1728 qemu_devices_reset();
1729 }
1730 if (reason) {
1731 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1732 &error_abort);
1733 }
1734 cpu_synchronize_all_post_reset();
1735 }
1736
1737 void qemu_system_guest_panicked(GuestPanicInformation *info)
1738 {
1739 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1740
1741 if (current_cpu) {
1742 current_cpu->crash_occurred = true;
1743 }
1744 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1745 !!info, info, &error_abort);
1746 vm_stop(RUN_STATE_GUEST_PANICKED);
1747 if (!no_shutdown) {
1748 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1749 !!info, info, &error_abort);
1750 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1751 }
1752
1753 if (info) {
1754 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1755 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1756 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1757 info->u.hyper_v.arg1,
1758 info->u.hyper_v.arg2,
1759 info->u.hyper_v.arg3,
1760 info->u.hyper_v.arg4,
1761 info->u.hyper_v.arg5);
1762 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1763 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1764 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1765 info->u.s390.core,
1766 S390CrashReason_str(info->u.s390.reason),
1767 info->u.s390.psw_mask,
1768 info->u.s390.psw_addr);
1769 }
1770 qapi_free_GuestPanicInformation(info);
1771 }
1772 }
1773
1774 void qemu_system_reset_request(ShutdownCause reason)
1775 {
1776 if (no_reboot) {
1777 shutdown_requested = reason;
1778 } else {
1779 reset_requested = reason;
1780 }
1781 cpu_stop_current();
1782 qemu_notify_event();
1783 }
1784
1785 static void qemu_system_suspend(void)
1786 {
1787 pause_all_vcpus();
1788 notifier_list_notify(&suspend_notifiers, NULL);
1789 runstate_set(RUN_STATE_SUSPENDED);
1790 qapi_event_send_suspend(&error_abort);
1791 }
1792
1793 void qemu_system_suspend_request(void)
1794 {
1795 if (runstate_check(RUN_STATE_SUSPENDED)) {
1796 return;
1797 }
1798 suspend_requested = 1;
1799 cpu_stop_current();
1800 qemu_notify_event();
1801 }
1802
1803 void qemu_register_suspend_notifier(Notifier *notifier)
1804 {
1805 notifier_list_add(&suspend_notifiers, notifier);
1806 }
1807
1808 void qemu_system_wakeup_request(WakeupReason reason)
1809 {
1810 trace_system_wakeup_request(reason);
1811
1812 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1813 return;
1814 }
1815 if (!(wakeup_reason_mask & (1 << reason))) {
1816 return;
1817 }
1818 runstate_set(RUN_STATE_RUNNING);
1819 wakeup_reason = reason;
1820 qemu_notify_event();
1821 }
1822
1823 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1824 {
1825 if (enabled) {
1826 wakeup_reason_mask |= (1 << reason);
1827 } else {
1828 wakeup_reason_mask &= ~(1 << reason);
1829 }
1830 }
1831
1832 void qemu_register_wakeup_notifier(Notifier *notifier)
1833 {
1834 notifier_list_add(&wakeup_notifiers, notifier);
1835 }
1836
1837 void qemu_system_killed(int signal, pid_t pid)
1838 {
1839 shutdown_signal = signal;
1840 shutdown_pid = pid;
1841 no_shutdown = 0;
1842
1843 /* Cannot call qemu_system_shutdown_request directly because
1844 * we are in a signal handler.
1845 */
1846 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1847 qemu_notify_event();
1848 }
1849
1850 void qemu_system_shutdown_request(ShutdownCause reason)
1851 {
1852 trace_qemu_system_shutdown_request(reason);
1853 replay_shutdown_request(reason);
1854 shutdown_requested = reason;
1855 qemu_notify_event();
1856 }
1857
1858 static void qemu_system_powerdown(void)
1859 {
1860 qapi_event_send_powerdown(&error_abort);
1861 notifier_list_notify(&powerdown_notifiers, NULL);
1862 }
1863
1864 void qemu_system_powerdown_request(void)
1865 {
1866 trace_qemu_system_powerdown_request();
1867 powerdown_requested = 1;
1868 qemu_notify_event();
1869 }
1870
1871 void qemu_register_powerdown_notifier(Notifier *notifier)
1872 {
1873 notifier_list_add(&powerdown_notifiers, notifier);
1874 }
1875
1876 void qemu_system_debug_request(void)
1877 {
1878 debug_requested = 1;
1879 qemu_notify_event();
1880 }
1881
1882 static bool main_loop_should_exit(void)
1883 {
1884 RunState r;
1885 ShutdownCause request;
1886
1887 if (qemu_debug_requested()) {
1888 vm_stop(RUN_STATE_DEBUG);
1889 }
1890 if (qemu_suspend_requested()) {
1891 qemu_system_suspend();
1892 }
1893 request = qemu_shutdown_requested();
1894 if (request) {
1895 qemu_kill_report();
1896 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1897 &error_abort);
1898 if (no_shutdown) {
1899 vm_stop(RUN_STATE_SHUTDOWN);
1900 } else {
1901 return true;
1902 }
1903 }
1904 request = qemu_reset_requested();
1905 if (request) {
1906 pause_all_vcpus();
1907 qemu_system_reset(request);
1908 resume_all_vcpus();
1909 if (!runstate_check(RUN_STATE_RUNNING) &&
1910 !runstate_check(RUN_STATE_INMIGRATE)) {
1911 runstate_set(RUN_STATE_PRELAUNCH);
1912 }
1913 }
1914 if (qemu_wakeup_requested()) {
1915 pause_all_vcpus();
1916 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1917 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1918 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1919 resume_all_vcpus();
1920 qapi_event_send_wakeup(&error_abort);
1921 }
1922 if (qemu_powerdown_requested()) {
1923 qemu_system_powerdown();
1924 }
1925 if (qemu_vmstop_requested(&r)) {
1926 vm_stop(r);
1927 }
1928 return false;
1929 }
1930
1931 static void main_loop(void)
1932 {
1933 #ifdef CONFIG_PROFILER
1934 int64_t ti;
1935 #endif
1936 do {
1937 #ifdef CONFIG_PROFILER
1938 ti = profile_getclock();
1939 #endif
1940 main_loop_wait(false);
1941 #ifdef CONFIG_PROFILER
1942 dev_time += profile_getclock() - ti;
1943 #endif
1944 } while (!main_loop_should_exit());
1945 }
1946
1947 static void version(void)
1948 {
1949 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION "\n"
1950 QEMU_COPYRIGHT "\n");
1951 }
1952
1953 static void help(int exitcode)
1954 {
1955 version();
1956 printf("usage: %s [options] [disk_image]\n\n"
1957 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1958 error_get_progname());
1959
1960 #define QEMU_OPTIONS_GENERATE_HELP
1961 #include "qemu-options-wrapper.h"
1962
1963 printf("\nDuring emulation, the following keys are useful:\n"
1964 "ctrl-alt-f toggle full screen\n"
1965 "ctrl-alt-n switch to virtual console 'n'\n"
1966 "ctrl-alt toggle mouse and keyboard grab\n"
1967 "\n"
1968 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1969 "\n"
1970 QEMU_HELP_BOTTOM "\n");
1971
1972 exit(exitcode);
1973 }
1974
1975 #define HAS_ARG 0x0001
1976
1977 typedef struct QEMUOption {
1978 const char *name;
1979 int flags;
1980 int index;
1981 uint32_t arch_mask;
1982 } QEMUOption;
1983
1984 static const QEMUOption qemu_options[] = {
1985 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1986 #define QEMU_OPTIONS_GENERATE_OPTIONS
1987 #include "qemu-options-wrapper.h"
1988 { NULL },
1989 };
1990
1991 typedef struct VGAInterfaceInfo {
1992 const char *opt_name; /* option name */
1993 const char *name; /* human-readable name */
1994 /* Class names indicating that support is available.
1995 * If no class is specified, the interface is always available */
1996 const char *class_names[2];
1997 } VGAInterfaceInfo;
1998
1999 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2000 [VGA_NONE] = {
2001 .opt_name = "none",
2002 },
2003 [VGA_STD] = {
2004 .opt_name = "std",
2005 .name = "standard VGA",
2006 .class_names = { "VGA", "isa-vga" },
2007 },
2008 [VGA_CIRRUS] = {
2009 .opt_name = "cirrus",
2010 .name = "Cirrus VGA",
2011 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2012 },
2013 [VGA_VMWARE] = {
2014 .opt_name = "vmware",
2015 .name = "VMWare SVGA",
2016 .class_names = { "vmware-svga" },
2017 },
2018 [VGA_VIRTIO] = {
2019 .opt_name = "virtio",
2020 .name = "Virtio VGA",
2021 .class_names = { "virtio-vga" },
2022 },
2023 [VGA_QXL] = {
2024 .opt_name = "qxl",
2025 .name = "QXL VGA",
2026 .class_names = { "qxl-vga" },
2027 },
2028 [VGA_TCX] = {
2029 .opt_name = "tcx",
2030 .name = "TCX framebuffer",
2031 .class_names = { "SUNW,tcx" },
2032 },
2033 [VGA_CG3] = {
2034 .opt_name = "cg3",
2035 .name = "CG3 framebuffer",
2036 .class_names = { "cgthree" },
2037 },
2038 [VGA_XENFB] = {
2039 .opt_name = "xenfb",
2040 },
2041 };
2042
2043 static bool vga_interface_available(VGAInterfaceType t)
2044 {
2045 VGAInterfaceInfo *ti = &vga_interfaces[t];
2046
2047 assert(t < VGA_TYPE_MAX);
2048 return !ti->class_names[0] ||
2049 object_class_by_name(ti->class_names[0]) ||
2050 object_class_by_name(ti->class_names[1]);
2051 }
2052
2053 static void select_vgahw(const char *p)
2054 {
2055 const char *opts;
2056 int t;
2057
2058 assert(vga_interface_type == VGA_NONE);
2059 for (t = 0; t < VGA_TYPE_MAX; t++) {
2060 VGAInterfaceInfo *ti = &vga_interfaces[t];
2061 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2062 if (!vga_interface_available(t)) {
2063 error_report("%s not available", ti->name);
2064 exit(1);
2065 }
2066 vga_interface_type = t;
2067 break;
2068 }
2069 }
2070 if (t == VGA_TYPE_MAX) {
2071 invalid_vga:
2072 error_report("unknown vga type: %s", p);
2073 exit(1);
2074 }
2075 while (*opts) {
2076 const char *nextopt;
2077
2078 if (strstart(opts, ",retrace=", &nextopt)) {
2079 opts = nextopt;
2080 if (strstart(opts, "dumb", &nextopt))
2081 vga_retrace_method = VGA_RETRACE_DUMB;
2082 else if (strstart(opts, "precise", &nextopt))
2083 vga_retrace_method = VGA_RETRACE_PRECISE;
2084 else goto invalid_vga;
2085 } else goto invalid_vga;
2086 opts = nextopt;
2087 }
2088 }
2089
2090 static void parse_display(const char *p)
2091 {
2092 const char *opts;
2093
2094 if (strstart(p, "sdl", &opts)) {
2095 #ifdef CONFIG_SDL
2096 dpy.type = DISPLAY_TYPE_SDL;
2097 while (*opts) {
2098 const char *nextopt;
2099
2100 if (strstart(opts, ",frame=", &nextopt)) {
2101 g_printerr("The frame= sdl option is deprecated, and will be\n"
2102 "removed in a future release.\n");
2103 opts = nextopt;
2104 if (strstart(opts, "on", &nextopt)) {
2105 no_frame = 0;
2106 } else if (strstart(opts, "off", &nextopt)) {
2107 no_frame = 1;
2108 } else {
2109 goto invalid_sdl_args;
2110 }
2111 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2112 opts = nextopt;
2113 if (strstart(opts, "on", &nextopt)) {
2114 alt_grab = 1;
2115 } else if (strstart(opts, "off", &nextopt)) {
2116 alt_grab = 0;
2117 } else {
2118 goto invalid_sdl_args;
2119 }
2120 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2121 opts = nextopt;
2122 if (strstart(opts, "on", &nextopt)) {
2123 ctrl_grab = 1;
2124 } else if (strstart(opts, "off", &nextopt)) {
2125 ctrl_grab = 0;
2126 } else {
2127 goto invalid_sdl_args;
2128 }
2129 } else if (strstart(opts, ",window_close=", &nextopt)) {
2130 opts = nextopt;
2131 dpy.has_window_close = true;
2132 if (strstart(opts, "on", &nextopt)) {
2133 dpy.window_close = true;
2134 } else if (strstart(opts, "off", &nextopt)) {
2135 dpy.window_close = false;
2136 } else {
2137 goto invalid_sdl_args;
2138 }
2139 } else if (strstart(opts, ",gl=", &nextopt)) {
2140 opts = nextopt;
2141 dpy.has_gl = true;
2142 if (strstart(opts, "on", &nextopt)) {
2143 dpy.gl = true;
2144 } else if (strstart(opts, "off", &nextopt)) {
2145 dpy.gl = false;
2146 } else {
2147 goto invalid_sdl_args;
2148 }
2149 } else {
2150 invalid_sdl_args:
2151 error_report("invalid SDL option string");
2152 exit(1);
2153 }
2154 opts = nextopt;
2155 }
2156 #else
2157 error_report("SDL support is disabled");
2158 exit(1);
2159 #endif
2160 } else if (strstart(p, "vnc", &opts)) {
2161 if (*opts == '=') {
2162 vnc_parse(opts + 1, &error_fatal);
2163 } else {
2164 error_report("VNC requires a display argument vnc=<display>");
2165 exit(1);
2166 }
2167 } else if (strstart(p, "egl-headless", &opts)) {
2168 #ifdef CONFIG_OPENGL_DMABUF
2169 display_opengl = 1;
2170 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2171 #else
2172 error_report("egl support is disabled");
2173 exit(1);
2174 #endif
2175 } else if (strstart(p, "curses", &opts)) {
2176 #ifdef CONFIG_CURSES
2177 dpy.type = DISPLAY_TYPE_CURSES;
2178 #else
2179 error_report("curses support is disabled");
2180 exit(1);
2181 #endif
2182 } else if (strstart(p, "gtk", &opts)) {
2183 #ifdef CONFIG_GTK
2184 dpy.type = DISPLAY_TYPE_GTK;
2185 while (*opts) {
2186 const char *nextopt;
2187
2188 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2189 opts = nextopt;
2190 dpy.u.gtk.has_grab_on_hover = true;
2191 if (strstart(opts, "on", &nextopt)) {
2192 dpy.u.gtk.grab_on_hover = true;
2193 } else if (strstart(opts, "off", &nextopt)) {
2194 dpy.u.gtk.grab_on_hover = false;
2195 } else {
2196 goto invalid_gtk_args;
2197 }
2198 } else if (strstart(opts, ",gl=", &nextopt)) {
2199 opts = nextopt;
2200 dpy.has_gl = true;
2201 if (strstart(opts, "on", &nextopt)) {
2202 dpy.gl = true;
2203 } else if (strstart(opts, "off", &nextopt)) {
2204 dpy.gl = false;
2205 } else {
2206 goto invalid_gtk_args;
2207 }
2208 } else {
2209 invalid_gtk_args:
2210 error_report("invalid GTK option string");
2211 exit(1);
2212 }
2213 opts = nextopt;
2214 }
2215 #else
2216 error_report("GTK support is disabled");
2217 exit(1);
2218 #endif
2219 } else if (strstart(p, "none", &opts)) {
2220 dpy.type = DISPLAY_TYPE_NONE;
2221 } else {
2222 error_report("unknown display type");
2223 exit(1);
2224 }
2225 }
2226
2227 static int balloon_parse(const char *arg)
2228 {
2229 QemuOpts *opts;
2230
2231 if (strcmp(arg, "none") == 0) {
2232 return 0;
2233 }
2234
2235 if (!strncmp(arg, "virtio", 6)) {
2236 if (arg[6] == ',') {
2237 /* have params -> parse them */
2238 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2239 false);
2240 if (!opts)
2241 return -1;
2242 } else {
2243 /* create empty opts */
2244 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2245 &error_abort);
2246 }
2247 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2248 return 0;
2249 }
2250
2251 return -1;
2252 }
2253
2254 char *qemu_find_file(int type, const char *name)
2255 {
2256 int i;
2257 const char *subdir;
2258 char *buf;
2259
2260 /* Try the name as a straight path first */
2261 if (access(name, R_OK) == 0) {
2262 trace_load_file(name, name);
2263 return g_strdup(name);
2264 }
2265
2266 switch (type) {
2267 case QEMU_FILE_TYPE_BIOS:
2268 subdir = "";
2269 break;
2270 case QEMU_FILE_TYPE_KEYMAP:
2271 subdir = "keymaps/";
2272 break;
2273 default:
2274 abort();
2275 }
2276
2277 for (i = 0; i < data_dir_idx; i++) {
2278 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2279 if (access(buf, R_OK) == 0) {
2280 trace_load_file(name, buf);
2281 return buf;
2282 }
2283 g_free(buf);
2284 }
2285 return NULL;
2286 }
2287
2288 static void qemu_add_data_dir(const char *path)
2289 {
2290 int i;
2291
2292 if (path == NULL) {
2293 return;
2294 }
2295 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2296 return;
2297 }
2298 for (i = 0; i < data_dir_idx; i++) {
2299 if (strcmp(data_dir[i], path) == 0) {
2300 return; /* duplicate */
2301 }
2302 }
2303 data_dir[data_dir_idx++] = g_strdup(path);
2304 }
2305
2306 static inline bool nonempty_str(const char *str)
2307 {
2308 return str && *str;
2309 }
2310
2311 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2312 {
2313 gchar *buf;
2314 size_t size;
2315 const char *name, *file, *str;
2316 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2317
2318 if (fw_cfg == NULL) {
2319 error_report("fw_cfg device not available");
2320 return -1;
2321 }
2322 name = qemu_opt_get(opts, "name");
2323 file = qemu_opt_get(opts, "file");
2324 str = qemu_opt_get(opts, "string");
2325
2326 /* we need name and either a file or the content string */
2327 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2328 error_report("invalid argument(s)");
2329 return -1;
2330 }
2331 if (nonempty_str(file) && nonempty_str(str)) {
2332 error_report("file and string are mutually exclusive");
2333 return -1;
2334 }
2335 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2336 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2337 return -1;
2338 }
2339 if (strncmp(name, "opt/", 4) != 0) {
2340 warn_report("externally provided fw_cfg item names "
2341 "should be prefixed with \"opt/\"");
2342 }
2343 if (nonempty_str(str)) {
2344 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2345 buf = g_memdup(str, size);
2346 } else {
2347 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2348 error_report("can't load %s", file);
2349 return -1;
2350 }
2351 }
2352 /* For legacy, keep user files in a specific global order. */
2353 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2354 fw_cfg_add_file(fw_cfg, name, buf, size);
2355 fw_cfg_reset_order_override(fw_cfg);
2356 return 0;
2357 }
2358
2359 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2360 {
2361 return qdev_device_help(opts);
2362 }
2363
2364 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2365 {
2366 Error *err = NULL;
2367 DeviceState *dev;
2368
2369 dev = qdev_device_add(opts, &err);
2370 if (!dev) {
2371 error_report_err(err);
2372 return -1;
2373 }
2374 object_unref(OBJECT(dev));
2375 return 0;
2376 }
2377
2378 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2379 {
2380 Error *local_err = NULL;
2381
2382 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2383 if (local_err) {
2384 error_report_err(local_err);
2385 return -1;
2386 }
2387 exit(0);
2388 }
2389 return 0;
2390 }
2391
2392 #ifdef CONFIG_VIRTFS
2393 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2394 {
2395 return qemu_fsdev_add(opts);
2396 }
2397 #endif
2398
2399 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2400 {
2401 Chardev *chr;
2402 const char *chardev;
2403 const char *mode;
2404 int flags;
2405
2406 mode = qemu_opt_get(opts, "mode");
2407 if (mode == NULL) {
2408 mode = "readline";
2409 }
2410 if (strcmp(mode, "readline") == 0) {
2411 flags = MONITOR_USE_READLINE;
2412 } else if (strcmp(mode, "control") == 0) {
2413 flags = MONITOR_USE_CONTROL;
2414 } else {
2415 error_report("unknown monitor mode \"%s\"", mode);
2416 exit(1);
2417 }
2418
2419 if (qemu_opt_get_bool(opts, "pretty", 0))
2420 flags |= MONITOR_USE_PRETTY;
2421
2422 chardev = qemu_opt_get(opts, "chardev");
2423 chr = qemu_chr_find(chardev);
2424 if (chr == NULL) {
2425 error_report("chardev \"%s\" not found", chardev);
2426 exit(1);
2427 }
2428
2429 monitor_init(chr, flags);
2430 return 0;
2431 }
2432
2433 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2434 {
2435 static int monitor_device_index = 0;
2436 QemuOpts *opts;
2437 const char *p;
2438 char label[32];
2439
2440 if (strstart(optarg, "chardev:", &p)) {
2441 snprintf(label, sizeof(label), "%s", p);
2442 } else {
2443 snprintf(label, sizeof(label), "compat_monitor%d",
2444 monitor_device_index);
2445 opts = qemu_chr_parse_compat(label, optarg);
2446 if (!opts) {
2447 error_report("parse error: %s", optarg);
2448 exit(1);
2449 }
2450 }
2451
2452 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2453 qemu_opt_set(opts, "mode", mode, &error_abort);
2454 qemu_opt_set(opts, "chardev", label, &error_abort);
2455 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2456 monitor_device_index++;
2457 }
2458
2459 struct device_config {
2460 enum {
2461 DEV_USB, /* -usbdevice */
2462 DEV_BT, /* -bt */
2463 DEV_SERIAL, /* -serial */
2464 DEV_PARALLEL, /* -parallel */
2465 DEV_VIRTCON, /* -virtioconsole */
2466 DEV_DEBUGCON, /* -debugcon */
2467 DEV_GDB, /* -gdb, -s */
2468 DEV_SCLP, /* s390 sclp */
2469 } type;
2470 const char *cmdline;
2471 Location loc;
2472 QTAILQ_ENTRY(device_config) next;
2473 };
2474
2475 static QTAILQ_HEAD(, device_config) device_configs =
2476 QTAILQ_HEAD_INITIALIZER(device_configs);
2477
2478 static void add_device_config(int type, const char *cmdline)
2479 {
2480 struct device_config *conf;
2481
2482 conf = g_malloc0(sizeof(*conf));
2483 conf->type = type;
2484 conf->cmdline = cmdline;
2485 loc_save(&conf->loc);
2486 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2487 }
2488
2489 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2490 {
2491 struct device_config *conf;
2492 int rc;
2493
2494 QTAILQ_FOREACH(conf, &device_configs, next) {
2495 if (conf->type != type)
2496 continue;
2497 loc_push_restore(&conf->loc);
2498 rc = func(conf->cmdline);
2499 loc_pop(&conf->loc);
2500 if (rc) {
2501 return rc;
2502 }
2503 }
2504 return 0;
2505 }
2506
2507 static int serial_parse(const char *devname)
2508 {
2509 static int index = 0;
2510 char label[32];
2511
2512 if (strcmp(devname, "none") == 0)
2513 return 0;
2514 if (index == MAX_SERIAL_PORTS) {
2515 error_report("too many serial ports");
2516 exit(1);
2517 }
2518 snprintf(label, sizeof(label), "serial%d", index);
2519 serial_hds[index] = qemu_chr_new(label, devname);
2520 if (!serial_hds[index]) {
2521 error_report("could not connect serial device"
2522 " to character backend '%s'", devname);
2523 return -1;
2524 }
2525 index++;
2526 return 0;
2527 }
2528
2529 static int parallel_parse(const char *devname)
2530 {
2531 static int index = 0;
2532 char label[32];
2533
2534 if (strcmp(devname, "none") == 0)
2535 return 0;
2536 if (index == MAX_PARALLEL_PORTS) {
2537 error_report("too many parallel ports");
2538 exit(1);
2539 }
2540 snprintf(label, sizeof(label), "parallel%d", index);
2541 parallel_hds[index] = qemu_chr_new(label, devname);
2542 if (!parallel_hds[index]) {
2543 error_report("could not connect parallel device"
2544 " to character backend '%s'", devname);
2545 return -1;
2546 }
2547 index++;
2548 return 0;
2549 }
2550
2551 static int virtcon_parse(const char *devname)
2552 {
2553 QemuOptsList *device = qemu_find_opts("device");
2554 static int index = 0;
2555 char label[32];
2556 QemuOpts *bus_opts, *dev_opts;
2557
2558 if (strcmp(devname, "none") == 0)
2559 return 0;
2560 if (index == MAX_VIRTIO_CONSOLES) {
2561 error_report("too many virtio consoles");
2562 exit(1);
2563 }
2564
2565 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2566 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2567
2568 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2569 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2570
2571 snprintf(label, sizeof(label), "virtcon%d", index);
2572 virtcon_hds[index] = qemu_chr_new(label, devname);
2573 if (!virtcon_hds[index]) {
2574 error_report("could not connect virtio console"
2575 " to character backend '%s'", devname);
2576 return -1;
2577 }
2578 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2579
2580 index++;
2581 return 0;
2582 }
2583
2584 static int sclp_parse(const char *devname)
2585 {
2586 QemuOptsList *device = qemu_find_opts("device");
2587 static int index = 0;
2588 char label[32];
2589 QemuOpts *dev_opts;
2590
2591 if (strcmp(devname, "none") == 0) {
2592 return 0;
2593 }
2594 if (index == MAX_SCLP_CONSOLES) {
2595 error_report("too many sclp consoles");
2596 exit(1);
2597 }
2598
2599 assert(arch_type == QEMU_ARCH_S390X);
2600
2601 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2602 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2603
2604 snprintf(label, sizeof(label), "sclpcon%d", index);
2605 sclp_hds[index] = qemu_chr_new(label, devname);
2606 if (!sclp_hds[index]) {
2607 error_report("could not connect sclp console"
2608 " to character backend '%s'", devname);
2609 return -1;
2610 }
2611 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2612
2613 index++;
2614 return 0;
2615 }
2616
2617 static int debugcon_parse(const char *devname)
2618 {
2619 QemuOpts *opts;
2620
2621 if (!qemu_chr_new("debugcon", devname)) {
2622 exit(1);
2623 }
2624 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2625 if (!opts) {
2626 error_report("already have a debugcon device");
2627 exit(1);
2628 }
2629 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2630 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2631 return 0;
2632 }
2633
2634 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2635 {
2636 const MachineClass *mc1 = a, *mc2 = b;
2637 int res;
2638
2639 if (mc1->family == NULL) {
2640 if (mc2->family == NULL) {
2641 /* Compare standalone machine types against each other; they sort
2642 * in increasing order.
2643 */
2644 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2645 object_class_get_name(OBJECT_CLASS(mc2)));
2646 }
2647
2648 /* Standalone machine types sort after families. */
2649 return 1;
2650 }
2651
2652 if (mc2->family == NULL) {
2653 /* Families sort before standalone machine types. */
2654 return -1;
2655 }
2656
2657 /* Families sort between each other alphabetically increasingly. */
2658 res = strcmp(mc1->family, mc2->family);
2659 if (res != 0) {
2660 return res;
2661 }
2662
2663 /* Within the same family, machine types sort in decreasing order. */
2664 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2665 object_class_get_name(OBJECT_CLASS(mc1)));
2666 }
2667
2668 static MachineClass *machine_parse(const char *name)
2669 {
2670 MachineClass *mc = NULL;
2671 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2672
2673 if (name) {
2674 mc = find_machine(name);
2675 }
2676 if (mc) {
2677 g_slist_free(machines);
2678 return mc;
2679 }
2680 if (name && !is_help_option(name)) {
2681 error_report("unsupported machine type");
2682 error_printf("Use -machine help to list supported machines\n");
2683 } else {
2684 printf("Supported machines are:\n");
2685 machines = g_slist_sort(machines, machine_class_cmp);
2686 for (el = machines; el; el = el->next) {
2687 MachineClass *mc = el->data;
2688 if (mc->alias) {
2689 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2690 }
2691 printf("%-20s %s%s\n", mc->name, mc->desc,
2692 mc->is_default ? " (default)" : "");
2693 }
2694 }
2695
2696 g_slist_free(machines);
2697 exit(!name || !is_help_option(name));
2698 }
2699
2700 void qemu_add_exit_notifier(Notifier *notify)
2701 {
2702 notifier_list_add(&exit_notifiers, notify);
2703 }
2704
2705 void qemu_remove_exit_notifier(Notifier *notify)
2706 {
2707 notifier_remove(notify);
2708 }
2709
2710 static void qemu_run_exit_notifiers(void)
2711 {
2712 notifier_list_notify(&exit_notifiers, NULL);
2713 }
2714
2715 static bool machine_init_done;
2716
2717 void qemu_add_machine_init_done_notifier(Notifier *notify)
2718 {
2719 notifier_list_add(&machine_init_done_notifiers, notify);
2720 if (machine_init_done) {
2721 notify->notify(notify, NULL);
2722 }
2723 }
2724
2725 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2726 {
2727 notifier_remove(notify);
2728 }
2729
2730 static void qemu_run_machine_init_done_notifiers(void)
2731 {
2732 notifier_list_notify(&machine_init_done_notifiers, NULL);
2733 machine_init_done = true;
2734 }
2735
2736 static const QEMUOption *lookup_opt(int argc, char **argv,
2737 const char **poptarg, int *poptind)
2738 {
2739 const QEMUOption *popt;
2740 int optind = *poptind;
2741 char *r = argv[optind];
2742 const char *optarg;
2743
2744 loc_set_cmdline(argv, optind, 1);
2745 optind++;
2746 /* Treat --foo the same as -foo. */
2747 if (r[1] == '-')
2748 r++;
2749 popt = qemu_options;
2750 for(;;) {
2751 if (!popt->name) {
2752 error_report("invalid option");
2753 exit(1);
2754 }
2755 if (!strcmp(popt->name, r + 1))
2756 break;
2757 popt++;
2758 }
2759 if (popt->flags & HAS_ARG) {
2760 if (optind >= argc) {
2761 error_report("requires an argument");
2762 exit(1);
2763 }
2764 optarg = argv[optind++];
2765 loc_set_cmdline(argv, optind - 2, 2);
2766 } else {
2767 optarg = NULL;
2768 }
2769
2770 *poptarg = optarg;
2771 *poptind = optind;
2772
2773 return popt;
2774 }
2775
2776 static MachineClass *select_machine(void)
2777 {
2778 MachineClass *machine_class = find_default_machine();
2779 const char *optarg;
2780 QemuOpts *opts;
2781 Location loc;
2782
2783 loc_push_none(&loc);
2784
2785 opts = qemu_get_machine_opts();
2786 qemu_opts_loc_restore(opts);
2787
2788 optarg = qemu_opt_get(opts, "type");
2789 if (optarg) {
2790 machine_class = machine_parse(optarg);
2791 }
2792
2793 if (!machine_class) {
2794 error_report("No machine specified, and there is no default");
2795 error_printf("Use -machine help to list supported machines\n");
2796 exit(1);
2797 }
2798
2799 loc_pop(&loc);
2800 return machine_class;
2801 }
2802
2803 static int machine_set_property(void *opaque,
2804 const char *name, const char *value,
2805 Error **errp)
2806 {
2807 Object *obj = OBJECT(opaque);
2808 Error *local_err = NULL;
2809 char *p, *qom_name;
2810
2811 if (strcmp(name, "type") == 0) {
2812 return 0;
2813 }
2814
2815 qom_name = g_strdup(name);
2816 for (p = qom_name; *p; p++) {
2817 if (*p == '_') {
2818 *p = '-';
2819 }
2820 }
2821
2822 object_property_parse(obj, value, qom_name, &local_err);
2823 g_free(qom_name);
2824
2825 if (local_err) {
2826 error_report_err(local_err);
2827 return -1;
2828 }
2829
2830 return 0;
2831 }
2832
2833
2834 /*
2835 * Initial object creation happens before all other
2836 * QEMU data types are created. The majority of objects
2837 * can be created at this point. The rng-egd object
2838 * cannot be created here, as it depends on the chardev
2839 * already existing.
2840 */
2841 static bool object_create_initial(const char *type)
2842 {
2843 if (g_str_equal(type, "rng-egd") ||
2844 g_str_has_prefix(type, "pr-manager-")) {
2845 return false;
2846 }
2847
2848 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2849 if (g_str_equal(type, "cryptodev-vhost-user")) {
2850 return false;
2851 }
2852 #endif
2853
2854 /*
2855 * return false for concrete netfilters since
2856 * they depend on netdevs already existing
2857 */
2858 if (g_str_equal(type, "filter-buffer") ||
2859 g_str_equal(type, "filter-dump") ||
2860 g_str_equal(type, "filter-mirror") ||
2861 g_str_equal(type, "filter-redirector") ||
2862 g_str_equal(type, "colo-compare") ||
2863 g_str_equal(type, "filter-rewriter") ||
2864 g_str_equal(type, "filter-replay")) {
2865 return false;
2866 }
2867
2868 /* Memory allocation by backends needs to be done
2869 * after configure_accelerator() (due to the tcg_enabled()
2870 * checks at memory_region_init_*()).
2871 *
2872 * Also, allocation of large amounts of memory may delay
2873 * chardev initialization for too long, and trigger timeouts
2874 * on software that waits for a monitor socket to be created
2875 * (e.g. libvirt).
2876 */
2877 if (g_str_has_prefix(type, "memory-backend-")) {
2878 return false;
2879 }
2880
2881 return true;
2882 }
2883
2884
2885 /*
2886 * The remainder of object creation happens after the
2887 * creation of chardev, fsdev, net clients and device data types.
2888 */
2889 static bool object_create_delayed(const char *type)
2890 {
2891 return !object_create_initial(type);
2892 }
2893
2894
2895 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2896 MachineClass *mc)
2897 {
2898 uint64_t sz;
2899 const char *mem_str;
2900 const char *maxmem_str, *slots_str;
2901 const ram_addr_t default_ram_size = mc->default_ram_size;
2902 QemuOpts *opts = qemu_find_opts_singleton("memory");
2903 Location loc;
2904
2905 loc_push_none(&loc);
2906 qemu_opts_loc_restore(opts);
2907
2908 sz = 0;
2909 mem_str = qemu_opt_get(opts, "size");
2910 if (mem_str) {
2911 if (!*mem_str) {
2912 error_report("missing 'size' option value");
2913 exit(EXIT_FAILURE);
2914 }
2915
2916 sz = qemu_opt_get_size(opts, "size", ram_size);
2917
2918 /* Fix up legacy suffix-less format */
2919 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2920 uint64_t overflow_check = sz;
2921
2922 sz <<= 20;
2923 if ((sz >> 20) != overflow_check) {
2924 error_report("too large 'size' option value");
2925 exit(EXIT_FAILURE);
2926 }
2927 }
2928 }
2929
2930 /* backward compatibility behaviour for case "-m 0" */
2931 if (sz == 0) {
2932 sz = default_ram_size;
2933 }
2934
2935 sz = QEMU_ALIGN_UP(sz, 8192);
2936 ram_size = sz;
2937 if (ram_size != sz) {
2938 error_report("ram size too large");
2939 exit(EXIT_FAILURE);
2940 }
2941
2942 /* store value for the future use */
2943 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2944 *maxram_size = ram_size;
2945
2946 maxmem_str = qemu_opt_get(opts, "maxmem");
2947 slots_str = qemu_opt_get(opts, "slots");
2948 if (maxmem_str && slots_str) {
2949 uint64_t slots;
2950
2951 sz = qemu_opt_get_size(opts, "maxmem", 0);
2952 slots = qemu_opt_get_number(opts, "slots", 0);
2953 if (sz < ram_size) {
2954 error_report("invalid value of -m option maxmem: "
2955 "maximum memory size (0x%" PRIx64 ") must be at least "
2956 "the initial memory size (0x" RAM_ADDR_FMT ")",
2957 sz, ram_size);
2958 exit(EXIT_FAILURE);
2959 } else if (sz > ram_size) {
2960 if (!slots) {
2961 error_report("invalid value of -m option: maxmem was "
2962 "specified, but no hotplug slots were specified");
2963 exit(EXIT_FAILURE);
2964 }
2965 } else if (slots) {
2966 error_report("invalid value of -m option maxmem: "
2967 "memory slots were specified but maximum memory size "
2968 "(0x%" PRIx64 ") is equal to the initial memory size "
2969 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2970 exit(EXIT_FAILURE);
2971 }
2972
2973 *maxram_size = sz;
2974 *ram_slots = slots;
2975 } else if ((!maxmem_str && slots_str) ||
2976 (maxmem_str && !slots_str)) {
2977 error_report("invalid -m option value: missing "
2978 "'%s' option", slots_str ? "maxmem" : "slots");
2979 exit(EXIT_FAILURE);
2980 }
2981
2982 loc_pop(&loc);
2983 }
2984
2985 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2986 {
2987 GlobalProperty *g;
2988
2989 g = g_malloc0(sizeof(*g));
2990 g->driver = qemu_opt_get(opts, "driver");
2991 g->property = qemu_opt_get(opts, "property");
2992 g->value = qemu_opt_get(opts, "value");
2993 g->user_provided = true;
2994 g->errp = &error_fatal;
2995 qdev_prop_register_global(g);
2996 return 0;
2997 }
2998
2999 static int qemu_read_default_config_file(void)
3000 {
3001 int ret;
3002
3003 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3004 if (ret < 0 && ret != -ENOENT) {
3005 return ret;
3006 }
3007
3008 return 0;
3009 }
3010
3011 static void user_register_global_props(void)
3012 {
3013 qemu_opts_foreach(qemu_find_opts("global"),
3014 global_init_func, NULL, NULL);
3015 }
3016
3017 /*
3018 * Note: we should see that these properties are actually having a
3019 * priority: accel < machine < user. This means e.g. when user
3020 * specifies something in "-global", it'll always be used with highest
3021 * priority than either machine/accelerator compat properties.
3022 */
3023 static void register_global_properties(MachineState *ms)
3024 {
3025 accel_register_compat_props(ms->accelerator);
3026 machine_register_compat_props(ms);
3027 user_register_global_props();
3028 }
3029
3030 int main(int argc, char **argv, char **envp)
3031 {
3032 int i;
3033 int snapshot, linux_boot;
3034 const char *initrd_filename;
3035 const char *kernel_filename, *kernel_cmdline;
3036 const char *boot_order = NULL;
3037 const char *boot_once = NULL;
3038 DisplayState *ds;
3039 QemuOpts *opts, *machine_opts;
3040 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3041 QemuOptsList *olist;
3042 int optind;
3043 const char *optarg;
3044 const char *loadvm = NULL;
3045 MachineClass *machine_class;
3046 const char *cpu_model;
3047 const char *vga_model = NULL;
3048 const char *qtest_chrdev = NULL;
3049 const char *qtest_log = NULL;
3050 const char *pid_file = NULL;
3051 const char *incoming = NULL;
3052 bool userconfig = true;
3053 bool nographic = false;
3054 int display_remote = 0;
3055 const char *log_mask = NULL;
3056 const char *log_file = NULL;
3057 char *trace_file = NULL;
3058 ram_addr_t maxram_size;
3059 uint64_t ram_slots = 0;
3060 FILE *vmstate_dump_file = NULL;
3061 Error *main_loop_err = NULL;
3062 Error *err = NULL;
3063 bool list_data_dirs = false;
3064 char *dir, **dirs;
3065 typedef struct BlockdevOptions_queue {
3066 BlockdevOptions *bdo;
3067 Location loc;
3068 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3069 } BlockdevOptions_queue;
3070 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3071 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3072
3073 module_call_init(MODULE_INIT_TRACE);
3074
3075 qemu_init_cpu_list();
3076 qemu_init_cpu_loop();
3077 qemu_mutex_lock_iothread();
3078
3079 atexit(qemu_run_exit_notifiers);
3080 error_set_progname(argv[0]);
3081 qemu_init_exec_dir(argv[0]);
3082
3083 module_call_init(MODULE_INIT_QOM);
3084 monitor_init_qmp_commands();
3085
3086 qemu_add_opts(&qemu_drive_opts);
3087 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3088 qemu_add_drive_opts(&qemu_common_drive_opts);
3089 qemu_add_drive_opts(&qemu_drive_opts);
3090 qemu_add_drive_opts(&bdrv_runtime_opts);
3091 qemu_add_opts(&qemu_chardev_opts);
3092 qemu_add_opts(&qemu_device_opts);
3093 qemu_add_opts(&qemu_netdev_opts);
3094 qemu_add_opts(&qemu_net_opts);
3095 qemu_add_opts(&qemu_rtc_opts);
3096 qemu_add_opts(&qemu_global_opts);
3097 qemu_add_opts(&qemu_mon_opts);
3098 qemu_add_opts(&qemu_trace_opts);
3099 qemu_add_opts(&qemu_option_rom_opts);
3100 qemu_add_opts(&qemu_machine_opts);
3101 qemu_add_opts(&qemu_accel_opts);
3102 qemu_add_opts(&qemu_mem_opts);
3103 qemu_add_opts(&qemu_smp_opts);
3104 qemu_add_opts(&qemu_boot_opts);
3105 qemu_add_opts(&qemu_sandbox_opts);
3106 qemu_add_opts(&qemu_add_fd_opts);
3107 qemu_add_opts(&qemu_object_opts);
3108 qemu_add_opts(&qemu_tpmdev_opts);
3109 qemu_add_opts(&qemu_realtime_opts);
3110 qemu_add_opts(&qemu_msg_opts);
3111 qemu_add_opts(&qemu_name_opts);
3112 qemu_add_opts(&qemu_numa_opts);
3113 qemu_add_opts(&qemu_icount_opts);
3114 qemu_add_opts(&qemu_semihosting_config_opts);
3115 qemu_add_opts(&qemu_fw_cfg_opts);
3116 module_call_init(MODULE_INIT_OPTS);
3117
3118 runstate_init();
3119
3120 if (qcrypto_init(&err) < 0) {
3121 error_reportf_err(err, "cannot initialize crypto: ");
3122 exit(1);
3123 }
3124 rtc_clock = QEMU_CLOCK_HOST;
3125
3126 QLIST_INIT (&vm_change_state_head);
3127 os_setup_early_signal_handling();
3128
3129 cpu_model = NULL;
3130 snapshot = 0;
3131
3132 nb_nics = 0;
3133
3134 bdrv_init_with_whitelist();
3135
3136 autostart = 1;
3137
3138 /* first pass of option parsing */
3139 optind = 1;
3140 while (optind < argc) {
3141 if (argv[optind][0] != '-') {
3142 /* disk image */
3143 optind++;
3144 } else {
3145 const QEMUOption *popt;
3146
3147 popt = lookup_opt(argc, argv, &optarg, &optind);
3148 switch (popt->index) {
3149 case QEMU_OPTION_nodefconfig:
3150 case QEMU_OPTION_nouserconfig:
3151 userconfig = false;
3152 break;
3153 }
3154 }
3155 }
3156
3157 if (userconfig) {
3158 if (qemu_read_default_config_file() < 0) {
3159 exit(1);
3160 }
3161 }
3162
3163 /* second pass of option parsing */
3164 optind = 1;
3165 for(;;) {
3166 if (optind >= argc)
3167 break;
3168 if (argv[optind][0] != '-') {
3169 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3170 } else {
3171 const QEMUOption *popt;
3172
3173 popt = lookup_opt(argc, argv, &optarg, &optind);
3174 if (!(popt->arch_mask & arch_type)) {
3175 error_report("Option not supported for this target");
3176 exit(1);
3177 }
3178 switch(popt->index) {
3179 case QEMU_OPTION_no_kvm_irqchip: {
3180 olist = qemu_find_opts("machine");
3181 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3182 break;
3183 }
3184 case QEMU_OPTION_cpu:
3185 /* hw initialization will check this */
3186 cpu_model = optarg;
3187 break;
3188 case QEMU_OPTION_hda:
3189 case QEMU_OPTION_hdb:
3190 case QEMU_OPTION_hdc:
3191 case QEMU_OPTION_hdd:
3192 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3193 HD_OPTS);
3194 break;
3195 case QEMU_OPTION_blockdev:
3196 {
3197 Visitor *v;
3198 BlockdevOptions_queue *bdo;
3199
3200 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3201 if (!v) {
3202 error_report_err(err);
3203 exit(1);
3204 }
3205
3206 bdo = g_new(BlockdevOptions_queue, 1);
3207 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3208 &error_fatal);
3209 visit_free(v);
3210 loc_save(&bdo->loc);
3211 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3212 break;
3213 }
3214 case QEMU_OPTION_drive:
3215 if (drive_def(optarg) == NULL) {
3216 exit(1);
3217 }
3218 break;
3219 case QEMU_OPTION_set:
3220 if (qemu_set_option(optarg) != 0)
3221 exit(1);
3222 break;
3223 case QEMU_OPTION_global:
3224 if (qemu_global_option(optarg) != 0)
3225 exit(1);
3226 break;
3227 case QEMU_OPTION_mtdblock:
3228 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3229 break;
3230 case QEMU_OPTION_sd:
3231 drive_add(IF_SD, -1, optarg, SD_OPTS);
3232 break;
3233 case QEMU_OPTION_pflash:
3234 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3235 break;
3236 case QEMU_OPTION_snapshot:
3237 snapshot = 1;
3238 break;
3239 case QEMU_OPTION_numa:
3240 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3241 optarg, true);
3242 if (!opts) {
3243 exit(1);
3244 }
3245 break;
3246 case QEMU_OPTION_display:
3247 parse_display(optarg);
3248 break;
3249 case QEMU_OPTION_nographic:
3250 olist = qemu_find_opts("machine");
3251 qemu_opts_parse_noisily(olist, "graphics=off", false);
3252 nographic = true;
3253 dpy.type = DISPLAY_TYPE_NONE;
3254 break;
3255 case QEMU_OPTION_curses:
3256 #ifdef CONFIG_CURSES
3257 dpy.type = DISPLAY_TYPE_CURSES;
3258 #else
3259 error_report("curses support is disabled");
3260 exit(1);
3261 #endif
3262 break;
3263 case QEMU_OPTION_portrait:
3264 graphic_rotate = 90;
3265 break;
3266 case QEMU_OPTION_rotate:
3267 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3268 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3269 graphic_rotate != 180 && graphic_rotate != 270) {
3270 error_report("only 90, 180, 270 deg rotation is available");
3271 exit(1);
3272 }
3273 break;
3274 case QEMU_OPTION_kernel:
3275 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3276 &error_abort);
3277 break;
3278 case QEMU_OPTION_initrd:
3279 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3280 &error_abort);
3281 break;
3282 case QEMU_OPTION_append:
3283 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3284 &error_abort);
3285 break;
3286 case QEMU_OPTION_dtb:
3287 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3288 &error_abort);
3289 break;
3290 case QEMU_OPTION_cdrom:
3291 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3292 break;
3293 case QEMU_OPTION_boot:
3294 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3295 optarg, true);
3296 if (!opts) {
3297 exit(1);
3298 }
3299 break;
3300 case QEMU_OPTION_fda:
3301 case QEMU_OPTION_fdb:
3302 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3303 optarg, FD_OPTS);
3304 break;
3305 case QEMU_OPTION_no_fd_bootchk:
3306 fd_bootchk = 0;
3307 break;
3308 case QEMU_OPTION_netdev:
3309 default_net = 0;
3310 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3311 exit(1);
3312 }
3313 break;
3314 case QEMU_OPTION_net:
3315 default_net = 0;
3316 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3317 exit(1);
3318 }
3319 break;
3320 #ifdef CONFIG_LIBISCSI
3321 case QEMU_OPTION_iscsi:
3322 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3323 optarg, false);
3324 if (!opts) {
3325 exit(1);
3326 }
3327 break;
3328 #endif
3329 #ifdef CONFIG_SLIRP
3330 case QEMU_OPTION_tftp:
3331 error_report("The -tftp option is deprecated. "
3332 "Please use '-netdev user,tftp=...' instead.");
3333 legacy_tftp_prefix = optarg;
3334 break;
3335 case QEMU_OPTION_bootp:
3336 error_report("The -bootp option is deprecated. "
3337 "Please use '-netdev user,bootfile=...' instead.");
3338 legacy_bootp_filename = optarg;
3339 break;
3340 case QEMU_OPTION_redir:
3341 error_report("The -redir option is deprecated. "
3342 "Please use '-netdev user,hostfwd=...' instead.");
3343 if (net_slirp_redir(optarg) < 0)
3344 exit(1);
3345 break;
3346 #endif
3347 case QEMU_OPTION_bt:
3348 add_device_config(DEV_BT, optarg);
3349 break;
3350 case QEMU_OPTION_audio_help:
3351 AUD_help ();
3352 exit (0);
3353 break;
3354 case QEMU_OPTION_soundhw:
3355 select_soundhw (optarg);
3356 break;
3357 case QEMU_OPTION_h:
3358 help(0);
3359 break;
3360 case QEMU_OPTION_version:
3361 version();
3362 exit(0);
3363 break;
3364 case QEMU_OPTION_m:
3365 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3366 optarg, true);
3367 if (!opts) {
3368 exit(EXIT_FAILURE);
3369 }
3370 break;
3371 #ifdef CONFIG_TPM
3372 case QEMU_OPTION_tpmdev:
3373 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3374 exit(1);
3375 }
3376 break;
3377 #endif
3378 case QEMU_OPTION_mempath:
3379 mem_path = optarg;
3380 break;
3381 case QEMU_OPTION_mem_prealloc:
3382 mem_prealloc = 1;
3383 break;
3384 case QEMU_OPTION_d:
3385 log_mask = optarg;
3386 break;
3387 case QEMU_OPTION_D:
3388 log_file = optarg;
3389 break;
3390 case QEMU_OPTION_DFILTER:
3391 qemu_set_dfilter_ranges(optarg, &error_fatal);
3392 break;
3393 case QEMU_OPTION_s:
3394 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3395 break;
3396 case QEMU_OPTION_gdb:
3397 add_device_config(DEV_GDB, optarg);
3398 break;
3399 case QEMU_OPTION_L:
3400 if (is_help_option(optarg)) {
3401 list_data_dirs = true;
3402 } else {
3403 qemu_add_data_dir(optarg);
3404 }
3405 break;
3406 case QEMU_OPTION_bios:
3407 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3408 &error_abort);
3409 break;
3410 case QEMU_OPTION_singlestep:
3411 singlestep = 1;
3412 break;
3413 case QEMU_OPTION_S:
3414 autostart = 0;
3415 break;
3416 case QEMU_OPTION_k:
3417 keyboard_layout = optarg;
3418 break;
3419 case QEMU_OPTION_localtime:
3420 rtc_utc = 0;
3421 break;
3422 case QEMU_OPTION_vga:
3423 vga_model = optarg;
3424 default_vga = 0;
3425 break;
3426 case QEMU_OPTION_g:
3427 {
3428 const char *p;
3429 int w, h, depth;
3430 p = optarg;
3431 w = strtol(p, (char **)&p, 10);
3432 if (w <= 0) {
3433 graphic_error:
3434 error_report("invalid resolution or depth");
3435 exit(1);
3436 }
3437 if (*p != 'x')
3438 goto graphic_error;
3439 p++;
3440 h = strtol(p, (char **)&p, 10);
3441 if (h <= 0)
3442 goto graphic_error;
3443 if (*p == 'x') {
3444 p++;
3445 depth = strtol(p, (char **)&p, 10);
3446 if (depth != 8 && depth != 15 && depth != 16 &&
3447 depth != 24 && depth != 32)
3448 goto graphic_error;
3449 } else if (*p == '\0') {
3450 depth = graphic_depth;
3451 } else {
3452 goto graphic_error;
3453 }
3454
3455 graphic_width = w;
3456 graphic_height = h;
3457 graphic_depth = depth;
3458 }
3459 break;
3460 case QEMU_OPTION_echr:
3461 {
3462 char *r;
3463 term_escape_char = strtol(optarg, &r, 0);
3464 if (r == optarg)
3465 printf("Bad argument to echr\n");
3466 break;
3467 }
3468 case QEMU_OPTION_monitor:
3469 default_monitor = 0;
3470 if (strncmp(optarg, "none", 4)) {
3471 monitor_parse(optarg, "readline", false);
3472 }
3473 break;
3474 case QEMU_OPTION_qmp:
3475 monitor_parse(optarg, "control", false);
3476 default_monitor = 0;
3477 break;
3478 case QEMU_OPTION_qmp_pretty:
3479 monitor_parse(optarg, "control", true);
3480 default_monitor = 0;
3481 break;
3482 case QEMU_OPTION_mon:
3483 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3484 true);
3485 if (!opts) {
3486 exit(1);
3487 }
3488 default_monitor = 0;
3489 break;
3490 case QEMU_OPTION_chardev:
3491 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3492 optarg, true);
3493 if (!opts) {
3494 exit(1);
3495 }
3496 break;
3497 case QEMU_OPTION_fsdev:
3498 olist = qemu_find_opts("fsdev");
3499 if (!olist) {
3500 error_report("fsdev support is disabled");
3501 exit(1);
3502 }
3503 opts = qemu_opts_parse_noisily(olist, optarg, true);
3504 if (!opts) {
3505 exit(1);
3506 }
3507 break;
3508 case QEMU_OPTION_virtfs: {
3509 QemuOpts *fsdev;
3510 QemuOpts *device;
3511 const char *writeout, *sock_fd, *socket, *path, *security_model;
3512
3513 olist = qemu_find_opts("virtfs");
3514 if (!olist) {
3515 error_report("virtfs support is disabled");
3516 exit(1);
3517 }
3518 opts = qemu_opts_parse_noisily(olist, optarg, true);
3519 if (!opts) {
3520 exit(1);
3521 }
3522
3523 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3524 qemu_opt_get(opts, "mount_tag") == NULL) {
3525 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3526 exit(1);
3527 }
3528 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3529 qemu_opts_id(opts) ?:
3530 qemu_opt_get(opts, "mount_tag"),
3531 1, NULL);
3532 if (!fsdev) {
3533 error_report("duplicate or invalid fsdev id: %s",
3534 qemu_opt_get(opts, "mount_tag"));
3535 exit(1);
3536 }
3537
3538 writeout = qemu_opt_get(opts, "writeout");
3539 if (writeout) {
3540 #ifdef CONFIG_SYNC_FILE_RANGE
3541 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3542 #else
3543 error_report("writeout=immediate not supported "
3544 "on this platform");
3545 exit(1);
3546 #endif
3547 }
3548 qemu_opt_set(fsdev, "fsdriver",
3549 qemu_opt_get(opts, "fsdriver"), &error_abort);
3550 path = qemu_opt_get(opts, "path");
3551 if (path) {
3552 qemu_opt_set(fsdev, "path", path, &error_abort);
3553 }
3554 security_model = qemu_opt_get(opts, "security_model");
3555 if (security_model) {
3556 qemu_opt_set(fsdev, "security_model", security_model,
3557 &error_abort);
3558 }
3559 socket = qemu_opt_get(opts, "socket");
3560 if (socket) {
3561 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3562 }
3563 sock_fd = qemu_opt_get(opts, "sock_fd");
3564 if (sock_fd) {
3565 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3566 }
3567
3568 qemu_opt_set_bool(fsdev, "readonly",
3569 qemu_opt_get_bool(opts, "readonly", 0),
3570 &error_abort);
3571 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3572 &error_abort);
3573 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3574 qemu_opt_set(device, "fsdev",
3575 qemu_opts_id(fsdev), &error_abort);
3576 qemu_opt_set(device, "mount_tag",
3577 qemu_opt_get(opts, "mount_tag"), &error_abort);
3578 break;
3579 }
3580 case QEMU_OPTION_virtfs_synth: {
3581 QemuOpts *fsdev;
3582 QemuOpts *device;
3583
3584 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3585 1, NULL);
3586 if (!fsdev) {
3587 error_report("duplicate option: %s", "virtfs_synth");
3588 exit(1);
3589 }
3590 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3591
3592 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3593 &error_abort);
3594 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3595 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3596 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3597 break;
3598 }
3599 case QEMU_OPTION_serial:
3600 add_device_config(DEV_SERIAL, optarg);
3601 default_serial = 0;
3602 if (strncmp(optarg, "mon:", 4) == 0) {
3603 default_monitor = 0;
3604 }
3605 break;
3606 case QEMU_OPTION_watchdog:
3607 if (watchdog) {
3608 error_report("only one watchdog option may be given");
3609 return 1;
3610 }
3611 watchdog = optarg;
3612 break;
3613 case QEMU_OPTION_watchdog_action:
3614 if (select_watchdog_action(optarg) == -1) {
3615 error_report("unknown -watchdog-action parameter");
3616 exit(1);
3617 }
3618 break;
3619 case QEMU_OPTION_virtiocon:
3620 add_device_config(DEV_VIRTCON, optarg);
3621 default_virtcon = 0;
3622 if (strncmp(optarg, "mon:", 4) == 0) {
3623 default_monitor = 0;
3624 }
3625 break;
3626 case QEMU_OPTION_parallel:
3627 add_device_config(DEV_PARALLEL, optarg);
3628 default_parallel = 0;
3629 if (strncmp(optarg, "mon:", 4) == 0) {
3630 default_monitor = 0;
3631 }
3632 break;
3633 case QEMU_OPTION_debugcon:
3634 add_device_config(DEV_DEBUGCON, optarg);
3635 break;
3636 case QEMU_OPTION_loadvm:
3637 loadvm = optarg;
3638 break;
3639 case QEMU_OPTION_full_screen:
3640 dpy.has_full_screen = true;
3641 dpy.full_screen = true;
3642 break;
3643 case QEMU_OPTION_no_frame:
3644 g_printerr("The -no-frame switch is deprecated, and will be\n"
3645 "removed in a future release.\n");
3646 no_frame = 1;
3647 break;
3648 case QEMU_OPTION_alt_grab:
3649 alt_grab = 1;
3650 break;
3651 case QEMU_OPTION_ctrl_grab:
3652 ctrl_grab = 1;
3653 break;
3654 case QEMU_OPTION_no_quit:
3655 dpy.has_window_close = true;
3656 dpy.window_close = false;
3657 break;
3658 case QEMU_OPTION_sdl:
3659 #ifdef CONFIG_SDL
3660 dpy.type = DISPLAY_TYPE_SDL;
3661 break;
3662 #else
3663 error_report("SDL support is disabled");
3664 exit(1);
3665 #endif
3666 case QEMU_OPTION_pidfile:
3667 pid_file = optarg;
3668 break;
3669 case QEMU_OPTION_win2k_hack:
3670 win2k_install_hack = 1;
3671 break;
3672 case QEMU_OPTION_rtc_td_hack: {
3673 static GlobalProperty slew_lost_ticks = {
3674 .driver = "mc146818rtc",
3675 .property = "lost_tick_policy",
3676 .value = "slew",
3677 };
3678
3679 qdev_prop_register_global(&slew_lost_ticks);
3680 break;
3681 }
3682 case QEMU_OPTION_acpitable:
3683 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3684 optarg, true);
3685 if (!opts) {
3686 exit(1);
3687 }
3688 acpi_table_add(opts, &error_fatal);
3689 break;
3690 case QEMU_OPTION_smbios:
3691 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3692 optarg, false);
3693 if (!opts) {
3694 exit(1);
3695 }
3696 smbios_entry_add(opts, &error_fatal);
3697 break;
3698 case QEMU_OPTION_fwcfg:
3699 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3700 optarg, true);
3701 if (opts == NULL) {
3702 exit(1);
3703 }
3704 break;
3705 case QEMU_OPTION_enable_kvm:
3706 olist = qemu_find_opts("machine");
3707 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3708 break;
3709 case QEMU_OPTION_enable_hax:
3710 olist = qemu_find_opts("machine");
3711 qemu_opts_parse_noisily(olist, "accel=hax", false);
3712 break;
3713 case QEMU_OPTION_M:
3714 case QEMU_OPTION_machine:
3715 olist = qemu_find_opts("machine");
3716 opts = qemu_opts_parse_noisily(olist, optarg, true);
3717 if (!opts) {
3718 exit(1);
3719 }
3720 break;
3721 case QEMU_OPTION_no_kvm:
3722 olist = qemu_find_opts("machine");
3723 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3724 break;
3725 case QEMU_OPTION_no_kvm_pit_reinjection: {
3726 static GlobalProperty kvm_pit_lost_tick_policy = {
3727 .driver = "kvm-pit",
3728 .property = "lost_tick_policy",
3729 .value = "discard",
3730 };
3731
3732 warn_report("deprecated, replaced by "
3733 "-global kvm-pit.lost_tick_policy=discard");
3734 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3735 break;
3736 }
3737 case QEMU_OPTION_accel:
3738 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3739 optarg, true);
3740 optarg = qemu_opt_get(accel_opts, "accel");
3741 if (!optarg || is_help_option(optarg)) {
3742 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3743 exit(0);
3744 }
3745 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3746 false, &error_abort);
3747 qemu_opt_set(opts, "accel", optarg, &error_abort);
3748 break;
3749 case QEMU_OPTION_usb:
3750 olist = qemu_find_opts("machine");
3751 qemu_opts_parse_noisily(olist, "usb=on", false);
3752 break;
3753 case QEMU_OPTION_usbdevice:
3754 error_report("'-usbdevice' is deprecated, please use "
3755 "'-device usb-...' instead");
3756 olist = qemu_find_opts("machine");
3757 qemu_opts_parse_noisily(olist, "usb=on", false);
3758 add_device_config(DEV_USB, optarg);
3759 break;
3760 case QEMU_OPTION_device:
3761 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3762 optarg, true)) {
3763 exit(1);
3764 }
3765 break;
3766 case QEMU_OPTION_smp:
3767 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3768 optarg, true)) {
3769 exit(1);
3770 }
3771 break;
3772 case QEMU_OPTION_vnc:
3773 vnc_parse(optarg, &error_fatal);
3774 break;
3775 case QEMU_OPTION_no_acpi:
3776 acpi_enabled = 0;
3777 break;
3778 case QEMU_OPTION_no_hpet:
3779 no_hpet = 1;
3780 break;
3781 case QEMU_OPTION_balloon:
3782 if (balloon_parse(optarg) < 0) {
3783 error_report("unknown -balloon argument %s", optarg);
3784 exit(1);
3785 }
3786 break;
3787 case QEMU_OPTION_no_reboot:
3788 no_reboot = 1;
3789 break;
3790 case QEMU_OPTION_no_shutdown:
3791 no_shutdown = 1;
3792 break;
3793 case QEMU_OPTION_show_cursor:
3794 cursor_hide = 0;
3795 break;
3796 case QEMU_OPTION_uuid:
3797 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3798 error_report("failed to parse UUID string: wrong format");
3799 exit(1);
3800 }
3801 qemu_uuid_set = true;
3802 break;
3803 case QEMU_OPTION_option_rom:
3804 if (nb_option_roms >= MAX_OPTION_ROMS) {
3805 error_report("too many option ROMs");
3806 exit(1);
3807 }
3808 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3809 optarg, true);
3810 if (!opts) {
3811 exit(1);
3812 }
3813 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3814 option_rom[nb_option_roms].bootindex =
3815 qemu_opt_get_number(opts, "bootindex", -1);
3816 if (!option_rom[nb_option_roms].name) {
3817 error_report("Option ROM file is not specified");
3818 exit(1);
3819 }
3820 nb_option_roms++;
3821 break;
3822 case QEMU_OPTION_semihosting:
3823 semihosting.enabled = true;
3824 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3825 break;
3826 case QEMU_OPTION_semihosting_config:
3827 semihosting.enabled = true;
3828 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3829 optarg, false);
3830 if (opts != NULL) {
3831 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3832 true);
3833 const char *target = qemu_opt_get(opts, "target");
3834 if (target != NULL) {
3835 if (strcmp("native", target) == 0) {
3836 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3837 } else if (strcmp("gdb", target) == 0) {
3838 semihosting.target = SEMIHOSTING_TARGET_GDB;
3839 } else if (strcmp("auto", target) == 0) {
3840 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3841 } else {
3842 error_report("unsupported semihosting-config %s",
3843 optarg);
3844 exit(1);
3845 }
3846 } else {
3847 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3848 }
3849 /* Set semihosting argument count and vector */
3850 qemu_opt_foreach(opts, add_semihosting_arg,
3851 &semihosting, NULL);
3852 } else {
3853 error_report("unsupported semihosting-config %s", optarg);
3854 exit(1);
3855 }
3856 break;
3857 case QEMU_OPTION_tdf:
3858 warn_report("ignoring deprecated option");
3859 break;
3860 case QEMU_OPTION_name:
3861 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3862 optarg, true);
3863 if (!opts) {
3864 exit(1);
3865 }
3866 break;
3867 case QEMU_OPTION_prom_env:
3868 if (nb_prom_envs >= MAX_PROM_ENVS) {
3869 error_report("too many prom variables");
3870 exit(1);
3871 }
3872 prom_envs[nb_prom_envs] = optarg;
3873 nb_prom_envs++;
3874 break;
3875 case QEMU_OPTION_old_param:
3876 old_param = 1;
3877 break;
3878 case QEMU_OPTION_clock:
3879 /* Clock options no longer exist. Keep this option for
3880 * backward compatibility.
3881 */
3882 break;
3883 case QEMU_OPTION_startdate:
3884 configure_rtc_date_offset(optarg, 1);
3885 break;
3886 case QEMU_OPTION_rtc:
3887 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3888 false);
3889 if (!opts) {
3890 exit(1);
3891 }
3892 configure_rtc(opts);
3893 break;
3894 case QEMU_OPTION_tb_size:
3895 #ifndef CONFIG_TCG
3896 error_report("TCG is disabled");
3897 exit(1);
3898 #endif
3899 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3900 error_report("Invalid argument to -tb-size");
3901 exit(1);
3902 }
3903 break;
3904 case QEMU_OPTION_icount:
3905 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3906 optarg, true);
3907 if (!icount_opts) {
3908 exit(1);
3909 }
3910 break;
3911 case QEMU_OPTION_incoming:
3912 if (!incoming) {
3913 runstate_set(RUN_STATE_INMIGRATE);
3914 }
3915 incoming = optarg;
3916 break;
3917 case QEMU_OPTION_only_migratable:
3918 /*
3919 * TODO: we can remove this option one day, and we
3920 * should all use:
3921 *
3922 * "-global migration.only-migratable=true"
3923 */
3924 qemu_global_option("migration.only-migratable=true");
3925 break;
3926 case QEMU_OPTION_nodefaults:
3927 has_defaults = 0;
3928 break;
3929 case QEMU_OPTION_xen_domid:
3930 if (!(xen_available())) {
3931 error_report("Option not supported for this target");
3932 exit(1);
3933 }
3934 xen_domid = atoi(optarg);
3935 break;
3936 case QEMU_OPTION_xen_create:
3937 if (!(xen_available())) {
3938 error_report("Option not supported for this target");
3939 exit(1);
3940 }
3941 xen_mode = XEN_CREATE;
3942 break;
3943 case QEMU_OPTION_xen_attach:
3944 if (!(xen_available())) {
3945 error_report("Option not supported for this target");
3946 exit(1);
3947 }
3948 xen_mode = XEN_ATTACH;
3949 break;
3950 case QEMU_OPTION_xen_domid_restrict:
3951 if (!(xen_available())) {
3952 error_report("Option not supported for this target");
3953 exit(1);
3954 }
3955 xen_domid_restrict = true;
3956 break;
3957 case QEMU_OPTION_trace:
3958 g_free(trace_file);
3959 trace_file = trace_opt_parse(optarg);
3960 break;
3961 case QEMU_OPTION_readconfig:
3962 {
3963 int ret = qemu_read_config_file(optarg);
3964 if (ret < 0) {
3965 error_report("read config %s: %s", optarg,
3966 strerror(-ret));
3967 exit(1);
3968 }
3969 break;
3970 }
3971 case QEMU_OPTION_spice:
3972 olist = qemu_find_opts("spice");
3973 if (!olist) {
3974 error_report("spice support is disabled");
3975 exit(1);
3976 }
3977 opts = qemu_opts_parse_noisily(olist, optarg, false);
3978 if (!opts) {
3979 exit(1);
3980 }
3981 display_remote++;
3982 break;
3983 case QEMU_OPTION_writeconfig:
3984 {
3985 FILE *fp;
3986 if (strcmp(optarg, "-") == 0) {
3987 fp = stdout;
3988 } else {
3989 fp = fopen(optarg, "w");
3990 if (fp == NULL) {
3991 error_report("open %s: %s", optarg,
3992 strerror(errno));
3993 exit(1);
3994 }
3995 }
3996 qemu_config_write(fp);
3997 if (fp != stdout) {
3998 fclose(fp);
3999 }
4000 break;
4001 }
4002 case QEMU_OPTION_qtest:
4003 qtest_chrdev = optarg;
4004 break;
4005 case QEMU_OPTION_qtest_log:
4006 qtest_log = optarg;
4007 break;
4008 case QEMU_OPTION_sandbox:
4009 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4010 optarg, true);
4011 if (!opts) {
4012 exit(1);
4013 }
4014 break;
4015 case QEMU_OPTION_add_fd:
4016 #ifndef _WIN32
4017 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4018 optarg, false);
4019 if (!opts) {
4020 exit(1);
4021 }
4022 #else
4023 error_report("File descriptor passing is disabled on this "
4024 "platform");
4025 exit(1);
4026 #endif
4027 break;
4028 case QEMU_OPTION_object:
4029 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4030 optarg, true);
4031 if (!opts) {
4032 exit(1);
4033 }
4034 break;
4035 case QEMU_OPTION_realtime:
4036 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4037 optarg, false);
4038 if (!opts) {
4039 exit(1);
4040 }
4041 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4042 break;
4043 case QEMU_OPTION_msg:
4044 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4045 false);
4046 if (!opts) {
4047 exit(1);
4048 }
4049 configure_msg(opts);
4050 break;
4051 case QEMU_OPTION_dump_vmstate:
4052 if (vmstate_dump_file) {
4053 error_report("only one '-dump-vmstate' "
4054 "option may be given");
4055 exit(1);
4056 }
4057 vmstate_dump_file = fopen(optarg, "w");
4058 if (vmstate_dump_file == NULL) {
4059 error_report("open %s: %s", optarg, strerror(errno));
4060 exit(1);
4061 }
4062 break;
4063 default:
4064 os_parse_cmd_args(popt->index, optarg);
4065 }
4066 }
4067 }
4068 /*
4069 * Clear error location left behind by the loop.
4070 * Best done right after the loop. Do not insert code here!
4071 */
4072 loc_set_none();
4073
4074 replay_configure(icount_opts);
4075
4076 machine_class = select_machine();
4077
4078 set_memory_options(&ram_slots, &maxram_size, machine_class);
4079
4080 os_daemonize();
4081 rcu_disable_atfork();
4082
4083 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4084 error_report("could not acquire pid file: %s", strerror(errno));
4085 exit(1);
4086 }
4087
4088 if (qemu_init_main_loop(&main_loop_err)) {
4089 error_report_err(main_loop_err);
4090 exit(1);
4091 }
4092
4093 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4094 parse_sandbox, NULL, NULL)) {
4095 exit(1);
4096 }
4097
4098 if (qemu_opts_foreach(qemu_find_opts("name"),
4099 parse_name, NULL, NULL)) {
4100 exit(1);
4101 }
4102
4103 #ifndef _WIN32
4104 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4105 parse_add_fd, NULL, NULL)) {
4106 exit(1);
4107 }
4108
4109 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4110 cleanup_add_fd, NULL, NULL)) {
4111 exit(1);
4112 }
4113 #endif
4114
4115 current_machine = MACHINE(object_new(object_class_get_name(
4116 OBJECT_CLASS(machine_class))));
4117 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4118 exit(0);
4119 }
4120 object_property_add_child(object_get_root(), "machine",
4121 OBJECT(current_machine), &error_abort);
4122
4123 if (machine_class->minimum_page_bits) {
4124 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4125 /* This would be a board error: specifying a minimum smaller than
4126 * a target's compile-time fixed setting.
4127 */
4128 g_assert_not_reached();
4129 }
4130 }
4131
4132 cpu_exec_init_all();
4133
4134 if (machine_class->hw_version) {
4135 qemu_set_hw_version(machine_class->hw_version);
4136 }
4137
4138 if (cpu_model && is_help_option(cpu_model)) {
4139 list_cpus(stdout, &fprintf, cpu_model);
4140 exit(0);
4141 }
4142
4143 if (!trace_init_backends()) {
4144 exit(1);
4145 }
4146 trace_init_file(trace_file);
4147
4148 /* Open the logfile at this point and set the log mask if necessary.
4149 */
4150 if (log_file) {
4151 qemu_set_log_filename(log_file, &error_fatal);
4152 }
4153
4154 if (log_mask) {
4155 int mask;
4156 mask = qemu_str_to_log_mask(log_mask);
4157 if (!mask) {
4158 qemu_print_log_usage(stdout);
4159 exit(1);
4160 }
4161 qemu_set_log(mask);
4162 } else {
4163 qemu_set_log(0);
4164 }
4165
4166 /* add configured firmware directories */
4167 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4168 for (i = 0; dirs[i] != NULL; i++) {
4169 qemu_add_data_dir(dirs[i]);
4170 }
4171 g_strfreev(dirs);
4172
4173 /* try to find datadir relative to the executable path */
4174 dir = os_find_datadir();
4175 qemu_add_data_dir(dir);
4176 g_free(dir);
4177
4178 /* add the datadir specified when building */
4179 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4180
4181 /* -L help lists the data directories and exits. */
4182 if (list_data_dirs) {
4183 for (i = 0; i < data_dir_idx; i++) {
4184 printf("%s\n", data_dir[i]);
4185 }
4186 exit(0);
4187 }
4188
4189 /* machine_class: default to UP */
4190 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4191 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4192 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4193
4194 /* default to machine_class->default_cpus */
4195 smp_cpus = machine_class->default_cpus;
4196 max_cpus = machine_class->default_cpus;
4197
4198 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4199
4200 /* sanity-check smp_cpus and max_cpus against machine_class */
4201 if (smp_cpus < machine_class->min_cpus) {
4202 error_report("Invalid SMP CPUs %d. The min CPUs "
4203 "supported by machine '%s' is %d", smp_cpus,
4204 machine_class->name, machine_class->min_cpus);
4205 exit(1);
4206 }
4207 if (max_cpus > machine_class->max_cpus) {
4208 error_report("Invalid SMP CPUs %d. The max CPUs "
4209 "supported by machine '%s' is %d", max_cpus,
4210 machine_class->name, machine_class->max_cpus);
4211 exit(1);
4212 }
4213
4214 /*
4215 * Get the default machine options from the machine if it is not already
4216 * specified either by the configuration file or by the command line.
4217 */
4218 if (machine_class->default_machine_opts) {
4219 qemu_opts_set_defaults(qemu_find_opts("machine"),
4220 machine_class->default_machine_opts, 0);
4221 }
4222
4223 qemu_opts_foreach(qemu_find_opts("device"),
4224 default_driver_check, NULL, NULL);
4225 qemu_opts_foreach(qemu_find_opts("global"),
4226 default_driver_check, NULL, NULL);
4227
4228 if (!vga_model && !default_vga) {
4229 vga_interface_type = VGA_DEVICE;
4230 }
4231 if (!has_defaults || machine_class->no_serial) {
4232 default_serial = 0;
4233 }
4234 if (!has_defaults || machine_class->no_parallel) {
4235 default_parallel = 0;
4236 }
4237 if (!has_defaults || !machine_class->use_virtcon) {
4238 default_virtcon = 0;
4239 }
4240 if (!has_defaults || !machine_class->use_sclp) {
4241 default_sclp = 0;
4242 }
4243 if (!has_defaults || machine_class->no_floppy) {
4244 default_floppy = 0;
4245 }
4246 if (!has_defaults || machine_class->no_cdrom) {
4247 default_cdrom = 0;
4248 }
4249 if (!has_defaults || machine_class->no_sdcard) {
4250 default_sdcard = 0;
4251 }
4252 if (!has_defaults) {
4253 default_monitor = 0;
4254 default_net = 0;
4255 default_vga = 0;
4256 }
4257
4258 if (is_daemonized()) {
4259 /* According to documentation and historically, -nographic redirects
4260 * serial port, parallel port and monitor to stdio, which does not work
4261 * with -daemonize. We can redirect these to null instead, but since
4262 * -nographic is legacy, let's just error out.
4263 * We disallow -nographic only if all other ports are not redirected
4264 * explicitly, to not break existing legacy setups which uses
4265 * -nographic _and_ redirects all ports explicitly - this is valid
4266 * usage, -nographic is just a no-op in this case.
4267 */
4268 if (nographic
4269 && (default_parallel || default_serial
4270 || default_monitor || default_virtcon)) {
4271 error_report("-nographic cannot be used with -daemonize");
4272 exit(1);
4273 }
4274 #ifdef CONFIG_CURSES
4275 if (dpy.type == DISPLAY_TYPE_CURSES) {
4276 error_report("curses display cannot be used with -daemonize");
4277 exit(1);
4278 }
4279 #endif
4280 }
4281
4282 if (nographic) {
4283 if (default_parallel)
4284 add_device_config(DEV_PARALLEL, "null");
4285 if (default_serial && default_monitor) {
4286 add_device_config(DEV_SERIAL, "mon:stdio");
4287 } else if (default_virtcon && default_monitor) {
4288 add_device_config(DEV_VIRTCON, "mon:stdio");
4289 } else if (default_sclp && default_monitor) {
4290 add_device_config(DEV_SCLP, "mon:stdio");
4291 } else {
4292 if (default_serial)
4293 add_device_config(DEV_SERIAL, "stdio");
4294 if (default_virtcon)
4295 add_device_config(DEV_VIRTCON, "stdio");
4296 if (default_sclp) {
4297 add_device_config(DEV_SCLP, "stdio");
4298 }
4299 if (default_monitor)
4300 monitor_parse("stdio", "readline", false);
4301 }
4302 } else {
4303 if (default_serial)
4304 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4305 if (default_parallel)
4306 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4307 if (default_monitor)
4308 monitor_parse("vc:80Cx24C", "readline", false);
4309 if (default_virtcon)
4310 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4311 if (default_sclp) {
4312 add_device_config(DEV_SCLP, "vc:80Cx24C");
4313 }
4314 }
4315
4316 #if defined(CONFIG_VNC)
4317 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4318 display_remote++;
4319 }
4320 #endif
4321 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4322 #if defined(CONFIG_GTK)
4323 dpy.type = DISPLAY_TYPE_GTK;
4324 #elif defined(CONFIG_SDL)
4325 dpy.type = DISPLAY_TYPE_SDL;
4326 #elif defined(CONFIG_COCOA)
4327 dpy.type = DISPLAY_TYPE_COCOA;
4328 #elif defined(CONFIG_VNC)
4329 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4330 #else
4331 dpy.type = DISPLAY_TYPE_NONE;
4332 #endif
4333 }
4334
4335 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4336 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4337 "for SDL, ignoring option");
4338 }
4339 if (dpy.has_window_close &&
4340 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4341 error_report("-no-quit is only valid for GTK and SDL, "
4342 "ignoring option");
4343 }
4344
4345 if (dpy.type == DISPLAY_TYPE_GTK) {
4346 early_gtk_display_init(&dpy);
4347 }
4348
4349 if (dpy.type == DISPLAY_TYPE_SDL) {
4350 sdl_display_early_init(&dpy);
4351 }
4352
4353 qemu_console_early_init();
4354
4355 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4356 #if defined(CONFIG_OPENGL)
4357 error_report("OpenGL is not supported by the display");
4358 #else
4359 error_report("OpenGL support is disabled");
4360 #endif
4361 exit(1);
4362 }
4363
4364 page_size_init();
4365 socket_init();
4366
4367 if (qemu_opts_foreach(qemu_find_opts("object"),
4368 user_creatable_add_opts_foreach,
4369 object_create_initial, NULL)) {
4370 exit(1);
4371 }
4372
4373 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4374 chardev_init_func, NULL, NULL)) {
4375 exit(1);
4376 }
4377
4378 #ifdef CONFIG_VIRTFS
4379 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4380 fsdev_init_func, NULL, NULL)) {
4381 exit(1);
4382 }
4383 #endif
4384
4385 if (qemu_opts_foreach(qemu_find_opts("device"),
4386 device_help_func, NULL, NULL)) {
4387 exit(0);
4388 }
4389
4390 machine_opts = qemu_get_machine_opts();
4391 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4392 NULL)) {
4393 object_unref(OBJECT(current_machine));
4394 exit(1);
4395 }
4396
4397 configure_accelerator(current_machine);
4398
4399 /*
4400 * Register all the global properties, including accel properties,
4401 * machine properties, and user-specified ones.
4402 */
4403 register_global_properties(current_machine);
4404
4405 /*
4406 * Migration object can only be created after global properties
4407 * are applied correctly.
4408 */
4409 migration_object_init();
4410
4411 if (qtest_chrdev) {
4412 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4413 }
4414
4415 machine_opts = qemu_get_machine_opts();
4416 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4417 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4418 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4419 bios_name = qemu_opt_get(machine_opts, "firmware");
4420
4421 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4422 if (opts) {
4423 boot_order = qemu_opt_get(opts, "order");
4424 if (boot_order) {
4425 validate_bootdevices(boot_order, &error_fatal);
4426 }
4427
4428 boot_once = qemu_opt_get(opts, "once");
4429 if (boot_once) {
4430 validate_bootdevices(boot_once, &error_fatal);
4431 }
4432
4433 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4434 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4435 }
4436
4437 if (!boot_order) {
4438 boot_order = machine_class->default_boot_order;
4439 }
4440
4441 if (!kernel_cmdline) {
4442 kernel_cmdline = "";
4443 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4444 }
4445
4446 linux_boot = (kernel_filename != NULL);
4447
4448 if (!linux_boot && *kernel_cmdline != '\0') {
4449 error_report("-append only allowed with -kernel option");
4450 exit(1);
4451 }
4452
4453 if (!linux_boot && initrd_filename != NULL) {
4454 error_report("-initrd only allowed with -kernel option");
4455 exit(1);
4456 }
4457
4458 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4459 /* fall back to the -kernel/-append */
4460 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4461 }
4462
4463 os_set_line_buffering();
4464
4465 /* spice needs the timers to be initialized by this point */
4466 qemu_spice_init();
4467
4468 cpu_ticks_init();
4469 if (icount_opts) {
4470 if (!tcg_enabled()) {
4471 error_report("-icount is not allowed with hardware virtualization");
4472 exit(1);
4473 }
4474 configure_icount(icount_opts, &error_abort);
4475 qemu_opts_del(icount_opts);
4476 }
4477
4478 if (tcg_enabled()) {
4479 qemu_tcg_configure(accel_opts, &error_fatal);
4480 }
4481
4482 if (default_net) {
4483 QemuOptsList *net = qemu_find_opts("net");
4484 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4485 #ifdef CONFIG_SLIRP
4486 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4487 #endif
4488 }
4489
4490 colo_info_init();
4491
4492 if (net_init_clients() < 0) {
4493 exit(1);
4494 }
4495
4496 if (qemu_opts_foreach(qemu_find_opts("object"),
4497 user_creatable_add_opts_foreach,
4498 object_create_delayed, NULL)) {
4499 exit(1);
4500 }
4501
4502 if (tpm_init() < 0) {
4503 exit(1);
4504 }
4505
4506 /* init the bluetooth world */
4507 if (foreach_device_config(DEV_BT, bt_parse))
4508 exit(1);
4509
4510 if (!xen_enabled()) {
4511 /* On 32-bit hosts, QEMU is limited by virtual address space */
4512 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4513 error_report("at most 2047 MB RAM can be simulated");
4514 exit(1);
4515 }
4516 }
4517
4518 blk_mig_init();
4519 ram_mig_init();
4520
4521 /* If the currently selected machine wishes to override the units-per-bus
4522 * property of its default HBA interface type, do so now. */
4523 if (machine_class->units_per_default_bus) {
4524 override_max_devs(machine_class->block_default_type,
4525 machine_class->units_per_default_bus);
4526 }
4527
4528 /* open the virtual block devices */
4529 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4530 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4531
4532 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4533 loc_push_restore(&bdo->loc);
4534 qmp_blockdev_add(bdo->bdo, &error_fatal);
4535 loc_pop(&bdo->loc);
4536 qapi_free_BlockdevOptions(bdo->bdo);
4537 g_free(bdo);
4538 }
4539 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4540 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4541 NULL, NULL);
4542 }
4543 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4544 &machine_class->block_default_type, NULL)) {
4545 exit(1);
4546 }
4547
4548 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4549 CDROM_OPTS);
4550 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4551 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4552
4553 if (qemu_opts_foreach(qemu_find_opts("mon"),
4554 mon_init_func, NULL, NULL)) {
4555 exit(1);
4556 }
4557
4558 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4559 exit(1);
4560 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4561 exit(1);
4562 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4563 exit(1);
4564 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4565 exit(1);
4566 }
4567 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4568 exit(1);
4569
4570 /* If no default VGA is requested, the default is "none". */
4571 if (default_vga) {
4572 if (machine_class->default_display) {
4573 vga_model = machine_class->default_display;
4574 } else if (vga_interface_available(VGA_CIRRUS)) {
4575 vga_model = "cirrus";
4576 } else if (vga_interface_available(VGA_STD)) {
4577 vga_model = "std";
4578 }
4579 }
4580 if (vga_model) {
4581 select_vgahw(vga_model);
4582 }
4583
4584 if (watchdog) {
4585 i = select_watchdog(watchdog);
4586 if (i > 0)
4587 exit (i == 1 ? 1 : 0);
4588 }
4589
4590 /* This checkpoint is required by replay to separate prior clock
4591 reading from the other reads, because timer polling functions query
4592 clock values from the log. */
4593 replay_checkpoint(CHECKPOINT_INIT);
4594 qdev_machine_init();
4595
4596 current_machine->ram_size = ram_size;
4597 current_machine->maxram_size = maxram_size;
4598 current_machine->ram_slots = ram_slots;
4599 current_machine->boot_order = boot_order;
4600 current_machine->cpu_model = cpu_model;
4601
4602 /* parse features once if machine provides default cpu_type */
4603 if (machine_class->default_cpu_type) {
4604 current_machine->cpu_type = machine_class->default_cpu_type;
4605 if (cpu_model) {
4606 current_machine->cpu_type =
4607 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4608 }
4609 }
4610 parse_numa_opts(current_machine);
4611
4612 machine_run_board_init(current_machine);
4613
4614 realtime_init();
4615
4616 soundhw_init();
4617
4618 if (hax_enabled()) {
4619 hax_sync_vcpus();
4620 }
4621
4622 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4623 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4624 exit(1);
4625 }
4626
4627 /* init USB devices */
4628 if (machine_usb(current_machine)) {
4629 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4630 exit(1);
4631 }
4632
4633 /* Check if IGD GFX passthrough. */
4634 igd_gfx_passthru();
4635
4636 /* init generic devices */
4637 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4638 if (qemu_opts_foreach(qemu_find_opts("device"),
4639 device_init_func, NULL, NULL)) {
4640 exit(1);
4641 }
4642
4643 cpu_synchronize_all_post_init();
4644
4645 rom_reset_order_override();
4646
4647 /*
4648 * Create frontends for -drive if=scsi leftovers.
4649 * Normally, frontends for -drive get created by machine
4650 * initialization for onboard SCSI HBAs. However, we create a few
4651 * more ever since SCSI qdevification, but this is pretty much an
4652 * implementation accident, and deprecated.
4653 */
4654 scsi_legacy_handle_cmdline();
4655
4656 /* Did we create any drives that we failed to create a device for? */
4657 drive_check_orphaned();
4658
4659 /* Don't warn about the default network setup that you get if
4660 * no command line -net or -netdev options are specified. There
4661 * are two cases that we would otherwise complain about:
4662 * (1) board doesn't support a NIC but the implicit "-net nic"
4663 * requested one
4664 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4665 * sets up a nic that isn't connected to anything.
4666 */
4667 if (!default_net) {
4668 net_check_clients();
4669 }
4670
4671
4672 if (boot_once) {
4673 qemu_boot_set(boot_once, &error_fatal);
4674 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4675 }
4676
4677 ds = init_displaystate();
4678
4679 /* init local displays */
4680 switch (dpy.type) {
4681 case DISPLAY_TYPE_CURSES:
4682 curses_display_init(ds, &dpy);
4683 break;
4684 case DISPLAY_TYPE_SDL:
4685 sdl_display_init(ds, &dpy);
4686 break;
4687 case DISPLAY_TYPE_COCOA:
4688 cocoa_display_init(ds, &dpy);
4689 break;
4690 case DISPLAY_TYPE_GTK:
4691 gtk_display_init(ds, &dpy);
4692 break;
4693 default:
4694 break;
4695 }
4696
4697 /* must be after terminal init, SDL library changes signal handlers */
4698 os_setup_signal_handling();
4699
4700 /* init remote displays */
4701 #ifdef CONFIG_VNC
4702 qemu_opts_foreach(qemu_find_opts("vnc"),
4703 vnc_init_func, NULL, NULL);
4704 #endif
4705
4706 if (using_spice) {
4707 qemu_spice_display_init();
4708 }
4709
4710 #ifdef CONFIG_OPENGL_DMABUF
4711 if (dpy.type == DISPLAY_TYPE_EGL_HEADLESS) {
4712 egl_headless_init(&dpy);
4713 }
4714 #endif
4715
4716 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4717 exit(1);
4718 }
4719
4720 qdev_machine_creation_done();
4721
4722 /* TODO: once all bus devices are qdevified, this should be done
4723 * when bus is created by qdev.c */
4724 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4725 qemu_run_machine_init_done_notifiers();
4726
4727 if (rom_check_and_register_reset() != 0) {
4728 error_report("rom check and register reset failed");
4729 exit(1);
4730 }
4731
4732 replay_start();
4733
4734 /* This checkpoint is required by replay to separate prior clock
4735 reading from the other reads, because timer polling functions query
4736 clock values from the log. */
4737 replay_checkpoint(CHECKPOINT_RESET);
4738 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4739 register_global_state();
4740 if (replay_mode != REPLAY_MODE_NONE) {
4741 replay_vmstate_init();
4742 } else if (loadvm) {
4743 Error *local_err = NULL;
4744 if (load_snapshot(loadvm, &local_err) < 0) {
4745 error_report_err(local_err);
4746 autostart = 0;
4747 }
4748 }
4749
4750 qdev_prop_check_globals();
4751 if (vmstate_dump_file) {
4752 /* dump and exit */
4753 dump_vmstate_json_to_file(vmstate_dump_file);
4754 return 0;
4755 }
4756
4757 if (incoming) {
4758 Error *local_err = NULL;
4759 qemu_start_incoming_migration(incoming, &local_err);
4760 if (local_err) {
4761 error_reportf_err(local_err, "-incoming %s: ", incoming);
4762 exit(1);
4763 }
4764 } else if (autostart) {
4765 vm_start();
4766 }
4767
4768 os_setup_post();
4769
4770 main_loop();
4771 replay_disable_events();
4772
4773 /* The ordering of the following is delicate. Stop vcpus to prevent new
4774 * I/O requests being queued by the guest. Then stop IOThreads (this
4775 * includes a drain operation and completes all request processing). At
4776 * this point emulated devices are still associated with their IOThreads
4777 * (if any) but no longer have any work to do. Only then can we close
4778 * block devices safely because we know there is no more I/O coming.
4779 */
4780 pause_all_vcpus();
4781 iothread_stop_all();
4782 bdrv_close_all();
4783
4784 res_free();
4785
4786 /* vhost-user must be cleaned up before chardevs. */
4787 tpm_cleanup();
4788 net_cleanup();
4789 audio_cleanup();
4790 monitor_cleanup();
4791 qemu_chr_cleanup();
4792 user_creatable_cleanup();
4793 migration_object_finalize();
4794 /* TODO: unref root container, check all devices are ok */
4795
4796 return 0;
4797 }
Eric Blake's pending patches to qemu