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s390x/tcg: add various alignment checks
[qemu.git] / vl.c
blob3018433706e8158fe74c374907af11a91b96b13b
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 /*
2849 * return false for concrete netfilters since
2850 * they depend on netdevs already existing
2851 */
2852 if (g_str_equal(type, "filter-buffer") ||
2853 g_str_equal(type, "filter-dump") ||
2854 g_str_equal(type, "filter-mirror") ||
2855 g_str_equal(type, "filter-redirector") ||
2856 g_str_equal(type, "colo-compare") ||
2857 g_str_equal(type, "filter-rewriter") ||
2858 g_str_equal(type, "filter-replay")) {
2859 return false;
2860 }
2861
2862 /* Memory allocation by backends needs to be done
2863 * after configure_accelerator() (due to the tcg_enabled()
2864 * checks at memory_region_init_*()).
2865 *
2866 * Also, allocation of large amounts of memory may delay
2867 * chardev initialization for too long, and trigger timeouts
2868 * on software that waits for a monitor socket to be created
2869 * (e.g. libvirt).
2870 */
2871 if (g_str_has_prefix(type, "memory-backend-")) {
2872 return false;
2873 }
2874
2875 return true;
2876 }
2877
2878
2879 /*
2880 * The remainder of object creation happens after the
2881 * creation of chardev, fsdev, net clients and device data types.
2882 */
2883 static bool object_create_delayed(const char *type)
2884 {
2885 return !object_create_initial(type);
2886 }
2887
2888
2889 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2890 MachineClass *mc)
2891 {
2892 uint64_t sz;
2893 const char *mem_str;
2894 const char *maxmem_str, *slots_str;
2895 const ram_addr_t default_ram_size = mc->default_ram_size;
2896 QemuOpts *opts = qemu_find_opts_singleton("memory");
2897 Location loc;
2898
2899 loc_push_none(&loc);
2900 qemu_opts_loc_restore(opts);
2901
2902 sz = 0;
2903 mem_str = qemu_opt_get(opts, "size");
2904 if (mem_str) {
2905 if (!*mem_str) {
2906 error_report("missing 'size' option value");
2907 exit(EXIT_FAILURE);
2908 }
2909
2910 sz = qemu_opt_get_size(opts, "size", ram_size);
2911
2912 /* Fix up legacy suffix-less format */
2913 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2914 uint64_t overflow_check = sz;
2915
2916 sz <<= 20;
2917 if ((sz >> 20) != overflow_check) {
2918 error_report("too large 'size' option value");
2919 exit(EXIT_FAILURE);
2920 }
2921 }
2922 }
2923
2924 /* backward compatibility behaviour for case "-m 0" */
2925 if (sz == 0) {
2926 sz = default_ram_size;
2927 }
2928
2929 sz = QEMU_ALIGN_UP(sz, 8192);
2930 ram_size = sz;
2931 if (ram_size != sz) {
2932 error_report("ram size too large");
2933 exit(EXIT_FAILURE);
2934 }
2935
2936 /* store value for the future use */
2937 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2938 *maxram_size = ram_size;
2939
2940 maxmem_str = qemu_opt_get(opts, "maxmem");
2941 slots_str = qemu_opt_get(opts, "slots");
2942 if (maxmem_str && slots_str) {
2943 uint64_t slots;
2944
2945 sz = qemu_opt_get_size(opts, "maxmem", 0);
2946 slots = qemu_opt_get_number(opts, "slots", 0);
2947 if (sz < ram_size) {
2948 error_report("invalid value of -m option maxmem: "
2949 "maximum memory size (0x%" PRIx64 ") must be at least "
2950 "the initial memory size (0x" RAM_ADDR_FMT ")",
2951 sz, ram_size);
2952 exit(EXIT_FAILURE);
2953 } else if (sz > ram_size) {
2954 if (!slots) {
2955 error_report("invalid value of -m option: maxmem was "
2956 "specified, but no hotplug slots were specified");
2957 exit(EXIT_FAILURE);
2958 }
2959 } else if (slots) {
2960 error_report("invalid value of -m option maxmem: "
2961 "memory slots were specified but maximum memory size "
2962 "(0x%" PRIx64 ") is equal to the initial memory size "
2963 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2964 exit(EXIT_FAILURE);
2965 }
2966
2967 *maxram_size = sz;
2968 *ram_slots = slots;
2969 } else if ((!maxmem_str && slots_str) ||
2970 (maxmem_str && !slots_str)) {
2971 error_report("invalid -m option value: missing "
2972 "'%s' option", slots_str ? "maxmem" : "slots");
2973 exit(EXIT_FAILURE);
2974 }
2975
2976 loc_pop(&loc);
2977 }
2978
2979 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2980 {
2981 GlobalProperty *g;
2982
2983 g = g_malloc0(sizeof(*g));
2984 g->driver = qemu_opt_get(opts, "driver");
2985 g->property = qemu_opt_get(opts, "property");
2986 g->value = qemu_opt_get(opts, "value");
2987 g->user_provided = true;
2988 g->errp = &error_fatal;
2989 qdev_prop_register_global(g);
2990 return 0;
2991 }
2992
2993 static int qemu_read_default_config_file(void)
2994 {
2995 int ret;
2996
2997 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2998 if (ret < 0 && ret != -ENOENT) {
2999 return ret;
3000 }
3001
3002 return 0;
3003 }
3004
3005 static void user_register_global_props(void)
3006 {
3007 qemu_opts_foreach(qemu_find_opts("global"),
3008 global_init_func, NULL, NULL);
3009 }
3010
3011 /*
3012 * Note: we should see that these properties are actually having a
3013 * priority: accel < machine < user. This means e.g. when user
3014 * specifies something in "-global", it'll always be used with highest
3015 * priority than either machine/accelerator compat properties.
3016 */
3017 static void register_global_properties(MachineState *ms)
3018 {
3019 accel_register_compat_props(ms->accelerator);
3020 machine_register_compat_props(ms);
3021 user_register_global_props();
3022 }
3023
3024 int main(int argc, char **argv, char **envp)
3025 {
3026 int i;
3027 int snapshot, linux_boot;
3028 const char *initrd_filename;
3029 const char *kernel_filename, *kernel_cmdline;
3030 const char *boot_order = NULL;
3031 const char *boot_once = NULL;
3032 DisplayState *ds;
3033 QemuOpts *opts, *machine_opts;
3034 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3035 QemuOptsList *olist;
3036 int optind;
3037 const char *optarg;
3038 const char *loadvm = NULL;
3039 MachineClass *machine_class;
3040 const char *cpu_model;
3041 const char *vga_model = NULL;
3042 const char *qtest_chrdev = NULL;
3043 const char *qtest_log = NULL;
3044 const char *pid_file = NULL;
3045 const char *incoming = NULL;
3046 bool userconfig = true;
3047 bool nographic = false;
3048 int display_remote = 0;
3049 const char *log_mask = NULL;
3050 const char *log_file = NULL;
3051 char *trace_file = NULL;
3052 ram_addr_t maxram_size;
3053 uint64_t ram_slots = 0;
3054 FILE *vmstate_dump_file = NULL;
3055 Error *main_loop_err = NULL;
3056 Error *err = NULL;
3057 bool list_data_dirs = false;
3058 char *dir, **dirs;
3059 typedef struct BlockdevOptions_queue {
3060 BlockdevOptions *bdo;
3061 Location loc;
3062 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3063 } BlockdevOptions_queue;
3064 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3065 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3066
3067 module_call_init(MODULE_INIT_TRACE);
3068
3069 qemu_init_cpu_list();
3070 qemu_init_cpu_loop();
3071 qemu_mutex_lock_iothread();
3072
3073 atexit(qemu_run_exit_notifiers);
3074 error_set_progname(argv[0]);
3075 qemu_init_exec_dir(argv[0]);
3076
3077 module_call_init(MODULE_INIT_QOM);
3078 monitor_init_qmp_commands();
3079
3080 qemu_add_opts(&qemu_drive_opts);
3081 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3082 qemu_add_drive_opts(&qemu_common_drive_opts);
3083 qemu_add_drive_opts(&qemu_drive_opts);
3084 qemu_add_drive_opts(&bdrv_runtime_opts);
3085 qemu_add_opts(&qemu_chardev_opts);
3086 qemu_add_opts(&qemu_device_opts);
3087 qemu_add_opts(&qemu_netdev_opts);
3088 qemu_add_opts(&qemu_net_opts);
3089 qemu_add_opts(&qemu_rtc_opts);
3090 qemu_add_opts(&qemu_global_opts);
3091 qemu_add_opts(&qemu_mon_opts);
3092 qemu_add_opts(&qemu_trace_opts);
3093 qemu_add_opts(&qemu_option_rom_opts);
3094 qemu_add_opts(&qemu_machine_opts);
3095 qemu_add_opts(&qemu_accel_opts);
3096 qemu_add_opts(&qemu_mem_opts);
3097 qemu_add_opts(&qemu_smp_opts);
3098 qemu_add_opts(&qemu_boot_opts);
3099 qemu_add_opts(&qemu_sandbox_opts);
3100 qemu_add_opts(&qemu_add_fd_opts);
3101 qemu_add_opts(&qemu_object_opts);
3102 qemu_add_opts(&qemu_tpmdev_opts);
3103 qemu_add_opts(&qemu_realtime_opts);
3104 qemu_add_opts(&qemu_msg_opts);
3105 qemu_add_opts(&qemu_name_opts);
3106 qemu_add_opts(&qemu_numa_opts);
3107 qemu_add_opts(&qemu_icount_opts);
3108 qemu_add_opts(&qemu_semihosting_config_opts);
3109 qemu_add_opts(&qemu_fw_cfg_opts);
3110 module_call_init(MODULE_INIT_OPTS);
3111
3112 runstate_init();
3113
3114 if (qcrypto_init(&err) < 0) {
3115 error_reportf_err(err, "cannot initialize crypto: ");
3116 exit(1);
3117 }
3118 rtc_clock = QEMU_CLOCK_HOST;
3119
3120 QLIST_INIT (&vm_change_state_head);
3121 os_setup_early_signal_handling();
3122
3123 cpu_model = NULL;
3124 snapshot = 0;
3125
3126 nb_nics = 0;
3127
3128 bdrv_init_with_whitelist();
3129
3130 autostart = 1;
3131
3132 /* first pass of option parsing */
3133 optind = 1;
3134 while (optind < argc) {
3135 if (argv[optind][0] != '-') {
3136 /* disk image */
3137 optind++;
3138 } else {
3139 const QEMUOption *popt;
3140
3141 popt = lookup_opt(argc, argv, &optarg, &optind);
3142 switch (popt->index) {
3143 case QEMU_OPTION_nodefconfig:
3144 case QEMU_OPTION_nouserconfig:
3145 userconfig = false;
3146 break;
3147 }
3148 }
3149 }
3150
3151 if (userconfig) {
3152 if (qemu_read_default_config_file() < 0) {
3153 exit(1);
3154 }
3155 }
3156
3157 /* second pass of option parsing */
3158 optind = 1;
3159 for(;;) {
3160 if (optind >= argc)
3161 break;
3162 if (argv[optind][0] != '-') {
3163 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3164 } else {
3165 const QEMUOption *popt;
3166
3167 popt = lookup_opt(argc, argv, &optarg, &optind);
3168 if (!(popt->arch_mask & arch_type)) {
3169 error_report("Option not supported for this target");
3170 exit(1);
3171 }
3172 switch(popt->index) {
3173 case QEMU_OPTION_no_kvm_irqchip: {
3174 olist = qemu_find_opts("machine");
3175 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3176 break;
3177 }
3178 case QEMU_OPTION_cpu:
3179 /* hw initialization will check this */
3180 cpu_model = optarg;
3181 break;
3182 case QEMU_OPTION_hda:
3183 case QEMU_OPTION_hdb:
3184 case QEMU_OPTION_hdc:
3185 case QEMU_OPTION_hdd:
3186 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3187 HD_OPTS);
3188 break;
3189 case QEMU_OPTION_blockdev:
3190 {
3191 Visitor *v;
3192 BlockdevOptions_queue *bdo;
3193
3194 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3195 if (!v) {
3196 error_report_err(err);
3197 exit(1);
3198 }
3199
3200 bdo = g_new(BlockdevOptions_queue, 1);
3201 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3202 &error_fatal);
3203 visit_free(v);
3204 loc_save(&bdo->loc);
3205 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3206 break;
3207 }
3208 case QEMU_OPTION_drive:
3209 if (drive_def(optarg) == NULL) {
3210 exit(1);
3211 }
3212 break;
3213 case QEMU_OPTION_set:
3214 if (qemu_set_option(optarg) != 0)
3215 exit(1);
3216 break;
3217 case QEMU_OPTION_global:
3218 if (qemu_global_option(optarg) != 0)
3219 exit(1);
3220 break;
3221 case QEMU_OPTION_mtdblock:
3222 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3223 break;
3224 case QEMU_OPTION_sd:
3225 drive_add(IF_SD, -1, optarg, SD_OPTS);
3226 break;
3227 case QEMU_OPTION_pflash:
3228 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3229 break;
3230 case QEMU_OPTION_snapshot:
3231 snapshot = 1;
3232 break;
3233 case QEMU_OPTION_numa:
3234 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3235 optarg, true);
3236 if (!opts) {
3237 exit(1);
3238 }
3239 break;
3240 case QEMU_OPTION_display:
3241 parse_display(optarg);
3242 break;
3243 case QEMU_OPTION_nographic:
3244 olist = qemu_find_opts("machine");
3245 qemu_opts_parse_noisily(olist, "graphics=off", false);
3246 nographic = true;
3247 dpy.type = DISPLAY_TYPE_NONE;
3248 break;
3249 case QEMU_OPTION_curses:
3250 #ifdef CONFIG_CURSES
3251 dpy.type = DISPLAY_TYPE_CURSES;
3252 #else
3253 error_report("curses support is disabled");
3254 exit(1);
3255 #endif
3256 break;
3257 case QEMU_OPTION_portrait:
3258 graphic_rotate = 90;
3259 break;
3260 case QEMU_OPTION_rotate:
3261 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3262 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3263 graphic_rotate != 180 && graphic_rotate != 270) {
3264 error_report("only 90, 180, 270 deg rotation is available");
3265 exit(1);
3266 }
3267 break;
3268 case QEMU_OPTION_kernel:
3269 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3270 &error_abort);
3271 break;
3272 case QEMU_OPTION_initrd:
3273 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3274 &error_abort);
3275 break;
3276 case QEMU_OPTION_append:
3277 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3278 &error_abort);
3279 break;
3280 case QEMU_OPTION_dtb:
3281 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3282 &error_abort);
3283 break;
3284 case QEMU_OPTION_cdrom:
3285 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3286 break;
3287 case QEMU_OPTION_boot:
3288 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3289 optarg, true);
3290 if (!opts) {
3291 exit(1);
3292 }
3293 break;
3294 case QEMU_OPTION_fda:
3295 case QEMU_OPTION_fdb:
3296 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3297 optarg, FD_OPTS);
3298 break;
3299 case QEMU_OPTION_no_fd_bootchk:
3300 fd_bootchk = 0;
3301 break;
3302 case QEMU_OPTION_netdev:
3303 default_net = 0;
3304 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3305 exit(1);
3306 }
3307 break;
3308 case QEMU_OPTION_net:
3309 default_net = 0;
3310 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3311 exit(1);
3312 }
3313 break;
3314 #ifdef CONFIG_LIBISCSI
3315 case QEMU_OPTION_iscsi:
3316 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3317 optarg, false);
3318 if (!opts) {
3319 exit(1);
3320 }
3321 break;
3322 #endif
3323 #ifdef CONFIG_SLIRP
3324 case QEMU_OPTION_tftp:
3325 error_report("The -tftp option is deprecated. "
3326 "Please use '-netdev user,tftp=...' instead.");
3327 legacy_tftp_prefix = optarg;
3328 break;
3329 case QEMU_OPTION_bootp:
3330 error_report("The -bootp option is deprecated. "
3331 "Please use '-netdev user,bootfile=...' instead.");
3332 legacy_bootp_filename = optarg;
3333 break;
3334 case QEMU_OPTION_redir:
3335 error_report("The -redir option is deprecated. "
3336 "Please use '-netdev user,hostfwd=...' instead.");
3337 if (net_slirp_redir(optarg) < 0)
3338 exit(1);
3339 break;
3340 #endif
3341 case QEMU_OPTION_bt:
3342 add_device_config(DEV_BT, optarg);
3343 break;
3344 case QEMU_OPTION_audio_help:
3345 AUD_help ();
3346 exit (0);
3347 break;
3348 case QEMU_OPTION_soundhw:
3349 select_soundhw (optarg);
3350 break;
3351 case QEMU_OPTION_h:
3352 help(0);
3353 break;
3354 case QEMU_OPTION_version:
3355 version();
3356 exit(0);
3357 break;
3358 case QEMU_OPTION_m:
3359 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3360 optarg, true);
3361 if (!opts) {
3362 exit(EXIT_FAILURE);
3363 }
3364 break;
3365 #ifdef CONFIG_TPM
3366 case QEMU_OPTION_tpmdev:
3367 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3368 exit(1);
3369 }
3370 break;
3371 #endif
3372 case QEMU_OPTION_mempath:
3373 mem_path = optarg;
3374 break;
3375 case QEMU_OPTION_mem_prealloc:
3376 mem_prealloc = 1;
3377 break;
3378 case QEMU_OPTION_d:
3379 log_mask = optarg;
3380 break;
3381 case QEMU_OPTION_D:
3382 log_file = optarg;
3383 break;
3384 case QEMU_OPTION_DFILTER:
3385 qemu_set_dfilter_ranges(optarg, &error_fatal);
3386 break;
3387 case QEMU_OPTION_s:
3388 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3389 break;
3390 case QEMU_OPTION_gdb:
3391 add_device_config(DEV_GDB, optarg);
3392 break;
3393 case QEMU_OPTION_L:
3394 if (is_help_option(optarg)) {
3395 list_data_dirs = true;
3396 } else {
3397 qemu_add_data_dir(optarg);
3398 }
3399 break;
3400 case QEMU_OPTION_bios:
3401 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3402 &error_abort);
3403 break;
3404 case QEMU_OPTION_singlestep:
3405 singlestep = 1;
3406 break;
3407 case QEMU_OPTION_S:
3408 autostart = 0;
3409 break;
3410 case QEMU_OPTION_k:
3411 keyboard_layout = optarg;
3412 break;
3413 case QEMU_OPTION_localtime:
3414 rtc_utc = 0;
3415 break;
3416 case QEMU_OPTION_vga:
3417 vga_model = optarg;
3418 default_vga = 0;
3419 break;
3420 case QEMU_OPTION_g:
3421 {
3422 const char *p;
3423 int w, h, depth;
3424 p = optarg;
3425 w = strtol(p, (char **)&p, 10);
3426 if (w <= 0) {
3427 graphic_error:
3428 error_report("invalid resolution or depth");
3429 exit(1);
3430 }
3431 if (*p != 'x')
3432 goto graphic_error;
3433 p++;
3434 h = strtol(p, (char **)&p, 10);
3435 if (h <= 0)
3436 goto graphic_error;
3437 if (*p == 'x') {
3438 p++;
3439 depth = strtol(p, (char **)&p, 10);
3440 if (depth != 8 && depth != 15 && depth != 16 &&
3441 depth != 24 && depth != 32)
3442 goto graphic_error;
3443 } else if (*p == '\0') {
3444 depth = graphic_depth;
3445 } else {
3446 goto graphic_error;
3447 }
3448
3449 graphic_width = w;
3450 graphic_height = h;
3451 graphic_depth = depth;
3452 }
3453 break;
3454 case QEMU_OPTION_echr:
3455 {
3456 char *r;
3457 term_escape_char = strtol(optarg, &r, 0);
3458 if (r == optarg)
3459 printf("Bad argument to echr\n");
3460 break;
3461 }
3462 case QEMU_OPTION_monitor:
3463 default_monitor = 0;
3464 if (strncmp(optarg, "none", 4)) {
3465 monitor_parse(optarg, "readline", false);
3466 }
3467 break;
3468 case QEMU_OPTION_qmp:
3469 monitor_parse(optarg, "control", false);
3470 default_monitor = 0;
3471 break;
3472 case QEMU_OPTION_qmp_pretty:
3473 monitor_parse(optarg, "control", true);
3474 default_monitor = 0;
3475 break;
3476 case QEMU_OPTION_mon:
3477 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3478 true);
3479 if (!opts) {
3480 exit(1);
3481 }
3482 default_monitor = 0;
3483 break;
3484 case QEMU_OPTION_chardev:
3485 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3486 optarg, true);
3487 if (!opts) {
3488 exit(1);
3489 }
3490 break;
3491 case QEMU_OPTION_fsdev:
3492 olist = qemu_find_opts("fsdev");
3493 if (!olist) {
3494 error_report("fsdev support is disabled");
3495 exit(1);
3496 }
3497 opts = qemu_opts_parse_noisily(olist, optarg, true);
3498 if (!opts) {
3499 exit(1);
3500 }
3501 break;
3502 case QEMU_OPTION_virtfs: {
3503 QemuOpts *fsdev;
3504 QemuOpts *device;
3505 const char *writeout, *sock_fd, *socket, *path, *security_model;
3506
3507 olist = qemu_find_opts("virtfs");
3508 if (!olist) {
3509 error_report("virtfs support is disabled");
3510 exit(1);
3511 }
3512 opts = qemu_opts_parse_noisily(olist, optarg, true);
3513 if (!opts) {
3514 exit(1);
3515 }
3516
3517 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3518 qemu_opt_get(opts, "mount_tag") == NULL) {
3519 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3520 exit(1);
3521 }
3522 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3523 qemu_opts_id(opts) ?:
3524 qemu_opt_get(opts, "mount_tag"),
3525 1, NULL);
3526 if (!fsdev) {
3527 error_report("duplicate or invalid fsdev id: %s",
3528 qemu_opt_get(opts, "mount_tag"));
3529 exit(1);
3530 }
3531
3532 writeout = qemu_opt_get(opts, "writeout");
3533 if (writeout) {
3534 #ifdef CONFIG_SYNC_FILE_RANGE
3535 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3536 #else
3537 error_report("writeout=immediate not supported "
3538 "on this platform");
3539 exit(1);
3540 #endif
3541 }
3542 qemu_opt_set(fsdev, "fsdriver",
3543 qemu_opt_get(opts, "fsdriver"), &error_abort);
3544 path = qemu_opt_get(opts, "path");
3545 if (path) {
3546 qemu_opt_set(fsdev, "path", path, &error_abort);
3547 }
3548 security_model = qemu_opt_get(opts, "security_model");
3549 if (security_model) {
3550 qemu_opt_set(fsdev, "security_model", security_model,
3551 &error_abort);
3552 }
3553 socket = qemu_opt_get(opts, "socket");
3554 if (socket) {
3555 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3556 }
3557 sock_fd = qemu_opt_get(opts, "sock_fd");
3558 if (sock_fd) {
3559 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3560 }
3561
3562 qemu_opt_set_bool(fsdev, "readonly",
3563 qemu_opt_get_bool(opts, "readonly", 0),
3564 &error_abort);
3565 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3566 &error_abort);
3567 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3568 qemu_opt_set(device, "fsdev",
3569 qemu_opts_id(fsdev), &error_abort);
3570 qemu_opt_set(device, "mount_tag",
3571 qemu_opt_get(opts, "mount_tag"), &error_abort);
3572 break;
3573 }
3574 case QEMU_OPTION_virtfs_synth: {
3575 QemuOpts *fsdev;
3576 QemuOpts *device;
3577
3578 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3579 1, NULL);
3580 if (!fsdev) {
3581 error_report("duplicate option: %s", "virtfs_synth");
3582 exit(1);
3583 }
3584 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3585
3586 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3587 &error_abort);
3588 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3589 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3590 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3591 break;
3592 }
3593 case QEMU_OPTION_serial:
3594 add_device_config(DEV_SERIAL, optarg);
3595 default_serial = 0;
3596 if (strncmp(optarg, "mon:", 4) == 0) {
3597 default_monitor = 0;
3598 }
3599 break;
3600 case QEMU_OPTION_watchdog:
3601 if (watchdog) {
3602 error_report("only one watchdog option may be given");
3603 return 1;
3604 }
3605 watchdog = optarg;
3606 break;
3607 case QEMU_OPTION_watchdog_action:
3608 if (select_watchdog_action(optarg) == -1) {
3609 error_report("unknown -watchdog-action parameter");
3610 exit(1);
3611 }
3612 break;
3613 case QEMU_OPTION_virtiocon:
3614 add_device_config(DEV_VIRTCON, optarg);
3615 default_virtcon = 0;
3616 if (strncmp(optarg, "mon:", 4) == 0) {
3617 default_monitor = 0;
3618 }
3619 break;
3620 case QEMU_OPTION_parallel:
3621 add_device_config(DEV_PARALLEL, optarg);
3622 default_parallel = 0;
3623 if (strncmp(optarg, "mon:", 4) == 0) {
3624 default_monitor = 0;
3625 }
3626 break;
3627 case QEMU_OPTION_debugcon:
3628 add_device_config(DEV_DEBUGCON, optarg);
3629 break;
3630 case QEMU_OPTION_loadvm:
3631 loadvm = optarg;
3632 break;
3633 case QEMU_OPTION_full_screen:
3634 dpy.has_full_screen = true;
3635 dpy.full_screen = true;
3636 break;
3637 case QEMU_OPTION_no_frame:
3638 g_printerr("The -no-frame switch is deprecated, and will be\n"
3639 "removed in a future release.\n");
3640 no_frame = 1;
3641 break;
3642 case QEMU_OPTION_alt_grab:
3643 alt_grab = 1;
3644 break;
3645 case QEMU_OPTION_ctrl_grab:
3646 ctrl_grab = 1;
3647 break;
3648 case QEMU_OPTION_no_quit:
3649 dpy.has_window_close = true;
3650 dpy.window_close = false;
3651 break;
3652 case QEMU_OPTION_sdl:
3653 #ifdef CONFIG_SDL
3654 dpy.type = DISPLAY_TYPE_SDL;
3655 break;
3656 #else
3657 error_report("SDL support is disabled");
3658 exit(1);
3659 #endif
3660 case QEMU_OPTION_pidfile:
3661 pid_file = optarg;
3662 break;
3663 case QEMU_OPTION_win2k_hack:
3664 win2k_install_hack = 1;
3665 break;
3666 case QEMU_OPTION_rtc_td_hack: {
3667 static GlobalProperty slew_lost_ticks = {
3668 .driver = "mc146818rtc",
3669 .property = "lost_tick_policy",
3670 .value = "slew",
3671 };
3672
3673 qdev_prop_register_global(&slew_lost_ticks);
3674 break;
3675 }
3676 case QEMU_OPTION_acpitable:
3677 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3678 optarg, true);
3679 if (!opts) {
3680 exit(1);
3681 }
3682 acpi_table_add(opts, &error_fatal);
3683 break;
3684 case QEMU_OPTION_smbios:
3685 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3686 optarg, false);
3687 if (!opts) {
3688 exit(1);
3689 }
3690 smbios_entry_add(opts, &error_fatal);
3691 break;
3692 case QEMU_OPTION_fwcfg:
3693 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3694 optarg, true);
3695 if (opts == NULL) {
3696 exit(1);
3697 }
3698 break;
3699 case QEMU_OPTION_enable_kvm:
3700 olist = qemu_find_opts("machine");
3701 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3702 break;
3703 case QEMU_OPTION_enable_hax:
3704 olist = qemu_find_opts("machine");
3705 qemu_opts_parse_noisily(olist, "accel=hax", false);
3706 break;
3707 case QEMU_OPTION_M:
3708 case QEMU_OPTION_machine:
3709 olist = qemu_find_opts("machine");
3710 opts = qemu_opts_parse_noisily(olist, optarg, true);
3711 if (!opts) {
3712 exit(1);
3713 }
3714 break;
3715 case QEMU_OPTION_no_kvm:
3716 olist = qemu_find_opts("machine");
3717 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3718 break;
3719 case QEMU_OPTION_no_kvm_pit_reinjection: {
3720 static GlobalProperty kvm_pit_lost_tick_policy = {
3721 .driver = "kvm-pit",
3722 .property = "lost_tick_policy",
3723 .value = "discard",
3724 };
3725
3726 warn_report("deprecated, replaced by "
3727 "-global kvm-pit.lost_tick_policy=discard");
3728 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3729 break;
3730 }
3731 case QEMU_OPTION_accel:
3732 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3733 optarg, true);
3734 optarg = qemu_opt_get(accel_opts, "accel");
3735 if (!optarg || is_help_option(optarg)) {
3736 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3737 exit(0);
3738 }
3739 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3740 false, &error_abort);
3741 qemu_opt_set(opts, "accel", optarg, &error_abort);
3742 break;
3743 case QEMU_OPTION_usb:
3744 olist = qemu_find_opts("machine");
3745 qemu_opts_parse_noisily(olist, "usb=on", false);
3746 break;
3747 case QEMU_OPTION_usbdevice:
3748 error_report("'-usbdevice' is deprecated, please use "
3749 "'-device usb-...' instead");
3750 olist = qemu_find_opts("machine");
3751 qemu_opts_parse_noisily(olist, "usb=on", false);
3752 add_device_config(DEV_USB, optarg);
3753 break;
3754 case QEMU_OPTION_device:
3755 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3756 optarg, true)) {
3757 exit(1);
3758 }
3759 break;
3760 case QEMU_OPTION_smp:
3761 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3762 optarg, true)) {
3763 exit(1);
3764 }
3765 break;
3766 case QEMU_OPTION_vnc:
3767 vnc_parse(optarg, &error_fatal);
3768 break;
3769 case QEMU_OPTION_no_acpi:
3770 acpi_enabled = 0;
3771 break;
3772 case QEMU_OPTION_no_hpet:
3773 no_hpet = 1;
3774 break;
3775 case QEMU_OPTION_balloon:
3776 if (balloon_parse(optarg) < 0) {
3777 error_report("unknown -balloon argument %s", optarg);
3778 exit(1);
3779 }
3780 break;
3781 case QEMU_OPTION_no_reboot:
3782 no_reboot = 1;
3783 break;
3784 case QEMU_OPTION_no_shutdown:
3785 no_shutdown = 1;
3786 break;
3787 case QEMU_OPTION_show_cursor:
3788 cursor_hide = 0;
3789 break;
3790 case QEMU_OPTION_uuid:
3791 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3792 error_report("failed to parse UUID string: wrong format");
3793 exit(1);
3794 }
3795 qemu_uuid_set = true;
3796 break;
3797 case QEMU_OPTION_option_rom:
3798 if (nb_option_roms >= MAX_OPTION_ROMS) {
3799 error_report("too many option ROMs");
3800 exit(1);
3801 }
3802 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3803 optarg, true);
3804 if (!opts) {
3805 exit(1);
3806 }
3807 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3808 option_rom[nb_option_roms].bootindex =
3809 qemu_opt_get_number(opts, "bootindex", -1);
3810 if (!option_rom[nb_option_roms].name) {
3811 error_report("Option ROM file is not specified");
3812 exit(1);
3813 }
3814 nb_option_roms++;
3815 break;
3816 case QEMU_OPTION_semihosting:
3817 semihosting.enabled = true;
3818 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3819 break;
3820 case QEMU_OPTION_semihosting_config:
3821 semihosting.enabled = true;
3822 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3823 optarg, false);
3824 if (opts != NULL) {
3825 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3826 true);
3827 const char *target = qemu_opt_get(opts, "target");
3828 if (target != NULL) {
3829 if (strcmp("native", target) == 0) {
3830 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3831 } else if (strcmp("gdb", target) == 0) {
3832 semihosting.target = SEMIHOSTING_TARGET_GDB;
3833 } else if (strcmp("auto", target) == 0) {
3834 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3835 } else {
3836 error_report("unsupported semihosting-config %s",
3837 optarg);
3838 exit(1);
3839 }
3840 } else {
3841 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3842 }
3843 /* Set semihosting argument count and vector */
3844 qemu_opt_foreach(opts, add_semihosting_arg,
3845 &semihosting, NULL);
3846 } else {
3847 error_report("unsupported semihosting-config %s", optarg);
3848 exit(1);
3849 }
3850 break;
3851 case QEMU_OPTION_tdf:
3852 warn_report("ignoring deprecated option");
3853 break;
3854 case QEMU_OPTION_name:
3855 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3856 optarg, true);
3857 if (!opts) {
3858 exit(1);
3859 }
3860 break;
3861 case QEMU_OPTION_prom_env:
3862 if (nb_prom_envs >= MAX_PROM_ENVS) {
3863 error_report("too many prom variables");
3864 exit(1);
3865 }
3866 prom_envs[nb_prom_envs] = optarg;
3867 nb_prom_envs++;
3868 break;
3869 case QEMU_OPTION_old_param:
3870 old_param = 1;
3871 break;
3872 case QEMU_OPTION_clock:
3873 /* Clock options no longer exist. Keep this option for
3874 * backward compatibility.
3875 */
3876 break;
3877 case QEMU_OPTION_startdate:
3878 configure_rtc_date_offset(optarg, 1);
3879 break;
3880 case QEMU_OPTION_rtc:
3881 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3882 false);
3883 if (!opts) {
3884 exit(1);
3885 }
3886 configure_rtc(opts);
3887 break;
3888 case QEMU_OPTION_tb_size:
3889 #ifndef CONFIG_TCG
3890 error_report("TCG is disabled");
3891 exit(1);
3892 #endif
3893 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3894 error_report("Invalid argument to -tb-size");
3895 exit(1);
3896 }
3897 break;
3898 case QEMU_OPTION_icount:
3899 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3900 optarg, true);
3901 if (!icount_opts) {
3902 exit(1);
3903 }
3904 break;
3905 case QEMU_OPTION_incoming:
3906 if (!incoming) {
3907 runstate_set(RUN_STATE_INMIGRATE);
3908 }
3909 incoming = optarg;
3910 break;
3911 case QEMU_OPTION_only_migratable:
3912 /*
3913 * TODO: we can remove this option one day, and we
3914 * should all use:
3915 *
3916 * "-global migration.only-migratable=true"
3917 */
3918 qemu_global_option("migration.only-migratable=true");
3919 break;
3920 case QEMU_OPTION_nodefaults:
3921 has_defaults = 0;
3922 break;
3923 case QEMU_OPTION_xen_domid:
3924 if (!(xen_available())) {
3925 error_report("Option not supported for this target");
3926 exit(1);
3927 }
3928 xen_domid = atoi(optarg);
3929 break;
3930 case QEMU_OPTION_xen_create:
3931 if (!(xen_available())) {
3932 error_report("Option not supported for this target");
3933 exit(1);
3934 }
3935 xen_mode = XEN_CREATE;
3936 break;
3937 case QEMU_OPTION_xen_attach:
3938 if (!(xen_available())) {
3939 error_report("Option not supported for this target");
3940 exit(1);
3941 }
3942 xen_mode = XEN_ATTACH;
3943 break;
3944 case QEMU_OPTION_xen_domid_restrict:
3945 if (!(xen_available())) {
3946 error_report("Option not supported for this target");
3947 exit(1);
3948 }
3949 xen_domid_restrict = true;
3950 break;
3951 case QEMU_OPTION_trace:
3952 g_free(trace_file);
3953 trace_file = trace_opt_parse(optarg);
3954 break;
3955 case QEMU_OPTION_readconfig:
3956 {
3957 int ret = qemu_read_config_file(optarg);
3958 if (ret < 0) {
3959 error_report("read config %s: %s", optarg,
3960 strerror(-ret));
3961 exit(1);
3962 }
3963 break;
3964 }
3965 case QEMU_OPTION_spice:
3966 olist = qemu_find_opts("spice");
3967 if (!olist) {
3968 error_report("spice support is disabled");
3969 exit(1);
3970 }
3971 opts = qemu_opts_parse_noisily(olist, optarg, false);
3972 if (!opts) {
3973 exit(1);
3974 }
3975 display_remote++;
3976 break;
3977 case QEMU_OPTION_writeconfig:
3978 {
3979 FILE *fp;
3980 if (strcmp(optarg, "-") == 0) {
3981 fp = stdout;
3982 } else {
3983 fp = fopen(optarg, "w");
3984 if (fp == NULL) {
3985 error_report("open %s: %s", optarg,
3986 strerror(errno));
3987 exit(1);
3988 }
3989 }
3990 qemu_config_write(fp);
3991 if (fp != stdout) {
3992 fclose(fp);
3993 }
3994 break;
3995 }
3996 case QEMU_OPTION_qtest:
3997 qtest_chrdev = optarg;
3998 break;
3999 case QEMU_OPTION_qtest_log:
4000 qtest_log = optarg;
4001 break;
4002 case QEMU_OPTION_sandbox:
4003 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4004 optarg, true);
4005 if (!opts) {
4006 exit(1);
4007 }
4008 break;
4009 case QEMU_OPTION_add_fd:
4010 #ifndef _WIN32
4011 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4012 optarg, false);
4013 if (!opts) {
4014 exit(1);
4015 }
4016 #else
4017 error_report("File descriptor passing is disabled on this "
4018 "platform");
4019 exit(1);
4020 #endif
4021 break;
4022 case QEMU_OPTION_object:
4023 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4024 optarg, true);
4025 if (!opts) {
4026 exit(1);
4027 }
4028 break;
4029 case QEMU_OPTION_realtime:
4030 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4031 optarg, false);
4032 if (!opts) {
4033 exit(1);
4034 }
4035 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4036 break;
4037 case QEMU_OPTION_msg:
4038 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4039 false);
4040 if (!opts) {
4041 exit(1);
4042 }
4043 configure_msg(opts);
4044 break;
4045 case QEMU_OPTION_dump_vmstate:
4046 if (vmstate_dump_file) {
4047 error_report("only one '-dump-vmstate' "
4048 "option may be given");
4049 exit(1);
4050 }
4051 vmstate_dump_file = fopen(optarg, "w");
4052 if (vmstate_dump_file == NULL) {
4053 error_report("open %s: %s", optarg, strerror(errno));
4054 exit(1);
4055 }
4056 break;
4057 default:
4058 os_parse_cmd_args(popt->index, optarg);
4059 }
4060 }
4061 }
4062 /*
4063 * Clear error location left behind by the loop.
4064 * Best done right after the loop. Do not insert code here!
4065 */
4066 loc_set_none();
4067
4068 replay_configure(icount_opts);
4069
4070 machine_class = select_machine();
4071
4072 set_memory_options(&ram_slots, &maxram_size, machine_class);
4073
4074 os_daemonize();
4075 rcu_disable_atfork();
4076
4077 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4078 error_report("could not acquire pid file: %s", strerror(errno));
4079 exit(1);
4080 }
4081
4082 if (qemu_init_main_loop(&main_loop_err)) {
4083 error_report_err(main_loop_err);
4084 exit(1);
4085 }
4086
4087 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4088 parse_sandbox, NULL, NULL)) {
4089 exit(1);
4090 }
4091
4092 if (qemu_opts_foreach(qemu_find_opts("name"),
4093 parse_name, NULL, NULL)) {
4094 exit(1);
4095 }
4096
4097 #ifndef _WIN32
4098 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4099 parse_add_fd, NULL, NULL)) {
4100 exit(1);
4101 }
4102
4103 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4104 cleanup_add_fd, NULL, NULL)) {
4105 exit(1);
4106 }
4107 #endif
4108
4109 current_machine = MACHINE(object_new(object_class_get_name(
4110 OBJECT_CLASS(machine_class))));
4111 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4112 exit(0);
4113 }
4114 object_property_add_child(object_get_root(), "machine",
4115 OBJECT(current_machine), &error_abort);
4116
4117 if (machine_class->minimum_page_bits) {
4118 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4119 /* This would be a board error: specifying a minimum smaller than
4120 * a target's compile-time fixed setting.
4121 */
4122 g_assert_not_reached();
4123 }
4124 }
4125
4126 cpu_exec_init_all();
4127
4128 if (machine_class->hw_version) {
4129 qemu_set_hw_version(machine_class->hw_version);
4130 }
4131
4132 if (cpu_model && is_help_option(cpu_model)) {
4133 list_cpus(stdout, &fprintf, cpu_model);
4134 exit(0);
4135 }
4136
4137 if (!trace_init_backends()) {
4138 exit(1);
4139 }
4140 trace_init_file(trace_file);
4141
4142 /* Open the logfile at this point and set the log mask if necessary.
4143 */
4144 if (log_file) {
4145 qemu_set_log_filename(log_file, &error_fatal);
4146 }
4147
4148 if (log_mask) {
4149 int mask;
4150 mask = qemu_str_to_log_mask(log_mask);
4151 if (!mask) {
4152 qemu_print_log_usage(stdout);
4153 exit(1);
4154 }
4155 qemu_set_log(mask);
4156 } else {
4157 qemu_set_log(0);
4158 }
4159
4160 /* add configured firmware directories */
4161 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4162 for (i = 0; dirs[i] != NULL; i++) {
4163 qemu_add_data_dir(dirs[i]);
4164 }
4165 g_strfreev(dirs);
4166
4167 /* try to find datadir relative to the executable path */
4168 dir = os_find_datadir();
4169 qemu_add_data_dir(dir);
4170 g_free(dir);
4171
4172 /* add the datadir specified when building */
4173 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4174
4175 /* -L help lists the data directories and exits. */
4176 if (list_data_dirs) {
4177 for (i = 0; i < data_dir_idx; i++) {
4178 printf("%s\n", data_dir[i]);
4179 }
4180 exit(0);
4181 }
4182
4183 /* machine_class: default to UP */
4184 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4185 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4186 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4187
4188 /* default to machine_class->default_cpus */
4189 smp_cpus = machine_class->default_cpus;
4190 max_cpus = machine_class->default_cpus;
4191
4192 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4193
4194 /* sanity-check smp_cpus and max_cpus against machine_class */
4195 if (smp_cpus < machine_class->min_cpus) {
4196 error_report("Invalid SMP CPUs %d. The min CPUs "
4197 "supported by machine '%s' is %d", smp_cpus,
4198 machine_class->name, machine_class->min_cpus);
4199 exit(1);
4200 }
4201 if (max_cpus > machine_class->max_cpus) {
4202 error_report("Invalid SMP CPUs %d. The max CPUs "
4203 "supported by machine '%s' is %d", max_cpus,
4204 machine_class->name, machine_class->max_cpus);
4205 exit(1);
4206 }
4207
4208 /*
4209 * Get the default machine options from the machine if it is not already
4210 * specified either by the configuration file or by the command line.
4211 */
4212 if (machine_class->default_machine_opts) {
4213 qemu_opts_set_defaults(qemu_find_opts("machine"),
4214 machine_class->default_machine_opts, 0);
4215 }
4216
4217 qemu_opts_foreach(qemu_find_opts("device"),
4218 default_driver_check, NULL, NULL);
4219 qemu_opts_foreach(qemu_find_opts("global"),
4220 default_driver_check, NULL, NULL);
4221
4222 if (!vga_model && !default_vga) {
4223 vga_interface_type = VGA_DEVICE;
4224 }
4225 if (!has_defaults || machine_class->no_serial) {
4226 default_serial = 0;
4227 }
4228 if (!has_defaults || machine_class->no_parallel) {
4229 default_parallel = 0;
4230 }
4231 if (!has_defaults || !machine_class->use_virtcon) {
4232 default_virtcon = 0;
4233 }
4234 if (!has_defaults || !machine_class->use_sclp) {
4235 default_sclp = 0;
4236 }
4237 if (!has_defaults || machine_class->no_floppy) {
4238 default_floppy = 0;
4239 }
4240 if (!has_defaults || machine_class->no_cdrom) {
4241 default_cdrom = 0;
4242 }
4243 if (!has_defaults || machine_class->no_sdcard) {
4244 default_sdcard = 0;
4245 }
4246 if (!has_defaults) {
4247 default_monitor = 0;
4248 default_net = 0;
4249 default_vga = 0;
4250 }
4251
4252 if (is_daemonized()) {
4253 /* According to documentation and historically, -nographic redirects
4254 * serial port, parallel port and monitor to stdio, which does not work
4255 * with -daemonize. We can redirect these to null instead, but since
4256 * -nographic is legacy, let's just error out.
4257 * We disallow -nographic only if all other ports are not redirected
4258 * explicitly, to not break existing legacy setups which uses
4259 * -nographic _and_ redirects all ports explicitly - this is valid
4260 * usage, -nographic is just a no-op in this case.
4261 */
4262 if (nographic
4263 && (default_parallel || default_serial
4264 || default_monitor || default_virtcon)) {
4265 error_report("-nographic cannot be used with -daemonize");
4266 exit(1);
4267 }
4268 #ifdef CONFIG_CURSES
4269 if (dpy.type == DISPLAY_TYPE_CURSES) {
4270 error_report("curses display cannot be used with -daemonize");
4271 exit(1);
4272 }
4273 #endif
4274 }
4275
4276 if (nographic) {
4277 if (default_parallel)
4278 add_device_config(DEV_PARALLEL, "null");
4279 if (default_serial && default_monitor) {
4280 add_device_config(DEV_SERIAL, "mon:stdio");
4281 } else if (default_virtcon && default_monitor) {
4282 add_device_config(DEV_VIRTCON, "mon:stdio");
4283 } else if (default_sclp && default_monitor) {
4284 add_device_config(DEV_SCLP, "mon:stdio");
4285 } else {
4286 if (default_serial)
4287 add_device_config(DEV_SERIAL, "stdio");
4288 if (default_virtcon)
4289 add_device_config(DEV_VIRTCON, "stdio");
4290 if (default_sclp) {
4291 add_device_config(DEV_SCLP, "stdio");
4292 }
4293 if (default_monitor)
4294 monitor_parse("stdio", "readline", false);
4295 }
4296 } else {
4297 if (default_serial)
4298 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4299 if (default_parallel)
4300 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4301 if (default_monitor)
4302 monitor_parse("vc:80Cx24C", "readline", false);
4303 if (default_virtcon)
4304 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4305 if (default_sclp) {
4306 add_device_config(DEV_SCLP, "vc:80Cx24C");
4307 }
4308 }
4309
4310 #if defined(CONFIG_VNC)
4311 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4312 display_remote++;
4313 }
4314 #endif
4315 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4316 #if defined(CONFIG_GTK)
4317 dpy.type = DISPLAY_TYPE_GTK;
4318 #elif defined(CONFIG_SDL)
4319 dpy.type = DISPLAY_TYPE_SDL;
4320 #elif defined(CONFIG_COCOA)
4321 dpy.type = DISPLAY_TYPE_COCOA;
4322 #elif defined(CONFIG_VNC)
4323 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4324 #else
4325 dpy.type = DISPLAY_TYPE_NONE;
4326 #endif
4327 }
4328
4329 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4330 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4331 "for SDL, ignoring option");
4332 }
4333 if (dpy.has_window_close &&
4334 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4335 error_report("-no-quit is only valid for GTK and SDL, "
4336 "ignoring option");
4337 }
4338
4339 if (dpy.type == DISPLAY_TYPE_GTK) {
4340 early_gtk_display_init(&dpy);
4341 }
4342
4343 if (dpy.type == DISPLAY_TYPE_SDL) {
4344 sdl_display_early_init(&dpy);
4345 }
4346
4347 qemu_console_early_init();
4348
4349 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4350 #if defined(CONFIG_OPENGL)
4351 error_report("OpenGL is not supported by the display");
4352 #else
4353 error_report("OpenGL support is disabled");
4354 #endif
4355 exit(1);
4356 }
4357
4358 page_size_init();
4359 socket_init();
4360
4361 if (qemu_opts_foreach(qemu_find_opts("object"),
4362 user_creatable_add_opts_foreach,
4363 object_create_initial, NULL)) {
4364 exit(1);
4365 }
4366
4367 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4368 chardev_init_func, NULL, NULL)) {
4369 exit(1);
4370 }
4371
4372 #ifdef CONFIG_VIRTFS
4373 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4374 fsdev_init_func, NULL, NULL)) {
4375 exit(1);
4376 }
4377 #endif
4378
4379 if (qemu_opts_foreach(qemu_find_opts("device"),
4380 device_help_func, NULL, NULL)) {
4381 exit(0);
4382 }
4383
4384 machine_opts = qemu_get_machine_opts();
4385 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4386 NULL)) {
4387 object_unref(OBJECT(current_machine));
4388 exit(1);
4389 }
4390
4391 configure_accelerator(current_machine);
4392
4393 /*
4394 * Register all the global properties, including accel properties,
4395 * machine properties, and user-specified ones.
4396 */
4397 register_global_properties(current_machine);
4398
4399 /*
4400 * Migration object can only be created after global properties
4401 * are applied correctly.
4402 */
4403 migration_object_init();
4404
4405 if (qtest_chrdev) {
4406 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4407 }
4408
4409 machine_opts = qemu_get_machine_opts();
4410 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4411 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4412 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4413 bios_name = qemu_opt_get(machine_opts, "firmware");
4414
4415 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4416 if (opts) {
4417 boot_order = qemu_opt_get(opts, "order");
4418 if (boot_order) {
4419 validate_bootdevices(boot_order, &error_fatal);
4420 }
4421
4422 boot_once = qemu_opt_get(opts, "once");
4423 if (boot_once) {
4424 validate_bootdevices(boot_once, &error_fatal);
4425 }
4426
4427 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4428 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4429 }
4430
4431 if (!boot_order) {
4432 boot_order = machine_class->default_boot_order;
4433 }
4434
4435 if (!kernel_cmdline) {
4436 kernel_cmdline = "";
4437 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4438 }
4439
4440 linux_boot = (kernel_filename != NULL);
4441
4442 if (!linux_boot && *kernel_cmdline != '\0') {
4443 error_report("-append only allowed with -kernel option");
4444 exit(1);
4445 }
4446
4447 if (!linux_boot && initrd_filename != NULL) {
4448 error_report("-initrd only allowed with -kernel option");
4449 exit(1);
4450 }
4451
4452 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4453 /* fall back to the -kernel/-append */
4454 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4455 }
4456
4457 os_set_line_buffering();
4458
4459 /* spice needs the timers to be initialized by this point */
4460 qemu_spice_init();
4461
4462 cpu_ticks_init();
4463 if (icount_opts) {
4464 if (!tcg_enabled()) {
4465 error_report("-icount is not allowed with hardware virtualization");
4466 exit(1);
4467 }
4468 configure_icount(icount_opts, &error_abort);
4469 qemu_opts_del(icount_opts);
4470 }
4471
4472 if (tcg_enabled()) {
4473 qemu_tcg_configure(accel_opts, &error_fatal);
4474 }
4475
4476 if (default_net) {
4477 QemuOptsList *net = qemu_find_opts("net");
4478 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4479 #ifdef CONFIG_SLIRP
4480 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4481 #endif
4482 }
4483
4484 colo_info_init();
4485
4486 if (net_init_clients() < 0) {
4487 exit(1);
4488 }
4489
4490 if (qemu_opts_foreach(qemu_find_opts("object"),
4491 user_creatable_add_opts_foreach,
4492 object_create_delayed, NULL)) {
4493 exit(1);
4494 }
4495
4496 if (tpm_init() < 0) {
4497 exit(1);
4498 }
4499
4500 /* init the bluetooth world */
4501 if (foreach_device_config(DEV_BT, bt_parse))
4502 exit(1);
4503
4504 if (!xen_enabled()) {
4505 /* On 32-bit hosts, QEMU is limited by virtual address space */
4506 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4507 error_report("at most 2047 MB RAM can be simulated");
4508 exit(1);
4509 }
4510 }
4511
4512 blk_mig_init();
4513 ram_mig_init();
4514
4515 /* If the currently selected machine wishes to override the units-per-bus
4516 * property of its default HBA interface type, do so now. */
4517 if (machine_class->units_per_default_bus) {
4518 override_max_devs(machine_class->block_default_type,
4519 machine_class->units_per_default_bus);
4520 }
4521
4522 /* open the virtual block devices */
4523 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4524 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4525
4526 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4527 loc_push_restore(&bdo->loc);
4528 qmp_blockdev_add(bdo->bdo, &error_fatal);
4529 loc_pop(&bdo->loc);
4530 qapi_free_BlockdevOptions(bdo->bdo);
4531 g_free(bdo);
4532 }
4533 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4534 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4535 NULL, NULL);
4536 }
4537 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4538 &machine_class->block_default_type, NULL)) {
4539 exit(1);
4540 }
4541
4542 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4543 CDROM_OPTS);
4544 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4545 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4546
4547 if (qemu_opts_foreach(qemu_find_opts("mon"),
4548 mon_init_func, NULL, NULL)) {
4549 exit(1);
4550 }
4551
4552 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4553 exit(1);
4554 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4555 exit(1);
4556 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4557 exit(1);
4558 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4559 exit(1);
4560 }
4561 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4562 exit(1);
4563
4564 /* If no default VGA is requested, the default is "none". */
4565 if (default_vga) {
4566 if (machine_class->default_display) {
4567 vga_model = machine_class->default_display;
4568 } else if (vga_interface_available(VGA_CIRRUS)) {
4569 vga_model = "cirrus";
4570 } else if (vga_interface_available(VGA_STD)) {
4571 vga_model = "std";
4572 }
4573 }
4574 if (vga_model) {
4575 select_vgahw(vga_model);
4576 }
4577
4578 if (watchdog) {
4579 i = select_watchdog(watchdog);
4580 if (i > 0)
4581 exit (i == 1 ? 1 : 0);
4582 }
4583
4584 /* This checkpoint is required by replay to separate prior clock
4585 reading from the other reads, because timer polling functions query
4586 clock values from the log. */
4587 replay_checkpoint(CHECKPOINT_INIT);
4588 qdev_machine_init();
4589
4590 current_machine->ram_size = ram_size;
4591 current_machine->maxram_size = maxram_size;
4592 current_machine->ram_slots = ram_slots;
4593 current_machine->boot_order = boot_order;
4594 current_machine->cpu_model = cpu_model;
4595
4596 /* parse features once if machine provides default cpu_type */
4597 if (machine_class->default_cpu_type) {
4598 current_machine->cpu_type = machine_class->default_cpu_type;
4599 if (cpu_model) {
4600 current_machine->cpu_type =
4601 cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model);
4602 }
4603 }
4604 parse_numa_opts(current_machine);
4605
4606 machine_run_board_init(current_machine);
4607
4608 realtime_init();
4609
4610 soundhw_init();
4611
4612 if (hax_enabled()) {
4613 hax_sync_vcpus();
4614 }
4615
4616 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4617 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4618 exit(1);
4619 }
4620
4621 /* init USB devices */
4622 if (machine_usb(current_machine)) {
4623 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4624 exit(1);
4625 }
4626
4627 /* Check if IGD GFX passthrough. */
4628 igd_gfx_passthru();
4629
4630 /* init generic devices */
4631 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4632 if (qemu_opts_foreach(qemu_find_opts("device"),
4633 device_init_func, NULL, NULL)) {
4634 exit(1);
4635 }
4636
4637 cpu_synchronize_all_post_init();
4638
4639 rom_reset_order_override();
4640
4641 /*
4642 * Create frontends for -drive if=scsi leftovers.
4643 * Normally, frontends for -drive get created by machine
4644 * initialization for onboard SCSI HBAs. However, we create a few
4645 * more ever since SCSI qdevification, but this is pretty much an
4646 * implementation accident, and deprecated.
4647 */
4648 scsi_legacy_handle_cmdline();
4649
4650 /* Did we create any drives that we failed to create a device for? */
4651 drive_check_orphaned();
4652
4653 /* Don't warn about the default network setup that you get if
4654 * no command line -net or -netdev options are specified. There
4655 * are two cases that we would otherwise complain about:
4656 * (1) board doesn't support a NIC but the implicit "-net nic"
4657 * requested one
4658 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4659 * sets up a nic that isn't connected to anything.
4660 */
4661 if (!default_net) {
4662 net_check_clients();
4663 }
4664
4665
4666 if (boot_once) {
4667 qemu_boot_set(boot_once, &error_fatal);
4668 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4669 }
4670
4671 ds = init_displaystate();
4672
4673 /* init local displays */
4674 switch (dpy.type) {
4675 case DISPLAY_TYPE_CURSES:
4676 curses_display_init(ds, &dpy);
4677 break;
4678 case DISPLAY_TYPE_SDL:
4679 sdl_display_init(ds, &dpy);
4680 break;
4681 case DISPLAY_TYPE_COCOA:
4682 cocoa_display_init(ds, &dpy);
4683 break;
4684 case DISPLAY_TYPE_GTK:
4685 gtk_display_init(ds, &dpy);
4686 break;
4687 default:
4688 break;
4689 }
4690
4691 /* must be after terminal init, SDL library changes signal handlers */
4692 os_setup_signal_handling();
4693
4694 /* init remote displays */
4695 #ifdef CONFIG_VNC
4696 qemu_opts_foreach(qemu_find_opts("vnc"),
4697 vnc_init_func, NULL, NULL);
4698 #endif
4699
4700 if (using_spice) {
4701 qemu_spice_display_init();
4702 }
4703
4704 #ifdef CONFIG_OPENGL_DMABUF
4705 if (dpy.type == DISPLAY_TYPE_EGL_HEADLESS) {
4706 egl_headless_init(&dpy);
4707 }
4708 #endif
4709
4710 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4711 exit(1);
4712 }
4713
4714 qdev_machine_creation_done();
4715
4716 /* TODO: once all bus devices are qdevified, this should be done
4717 * when bus is created by qdev.c */
4718 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4719 qemu_run_machine_init_done_notifiers();
4720
4721 if (rom_check_and_register_reset() != 0) {
4722 error_report("rom check and register reset failed");
4723 exit(1);
4724 }
4725
4726 replay_start();
4727
4728 /* This checkpoint is required by replay to separate prior clock
4729 reading from the other reads, because timer polling functions query
4730 clock values from the log. */
4731 replay_checkpoint(CHECKPOINT_RESET);
4732 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4733 register_global_state();
4734 if (replay_mode != REPLAY_MODE_NONE) {
4735 replay_vmstate_init();
4736 } else if (loadvm) {
4737 Error *local_err = NULL;
4738 if (load_snapshot(loadvm, &local_err) < 0) {
4739 error_report_err(local_err);
4740 autostart = 0;
4741 }
4742 }
4743
4744 qdev_prop_check_globals();
4745 if (vmstate_dump_file) {
4746 /* dump and exit */
4747 dump_vmstate_json_to_file(vmstate_dump_file);
4748 return 0;
4749 }
4750
4751 if (incoming) {
4752 Error *local_err = NULL;
4753 qemu_start_incoming_migration(incoming, &local_err);
4754 if (local_err) {
4755 error_reportf_err(local_err, "-incoming %s: ", incoming);
4756 exit(1);
4757 }
4758 } else if (autostart) {
4759 vm_start();
4760 }
4761
4762 os_setup_post();
4763
4764 main_loop();
4765 replay_disable_events();
4766
4767 /* The ordering of the following is delicate. Stop vcpus to prevent new
4768 * I/O requests being queued by the guest. Then stop IOThreads (this
4769 * includes a drain operation and completes all request processing). At
4770 * this point emulated devices are still associated with their IOThreads
4771 * (if any) but no longer have any work to do. Only then can we close
4772 * block devices safely because we know there is no more I/O coming.
4773 */
4774 pause_all_vcpus();
4775 iothread_stop_all();
4776 bdrv_close_all();
4777
4778 res_free();
4779
4780 /* vhost-user must be cleaned up before chardevs. */
4781 tpm_cleanup();
4782 net_cleanup();
4783 audio_cleanup();
4784 monitor_cleanup();
4785 qemu_chr_cleanup();
4786 user_creatable_cleanup();
4787 migration_object_finalize();
4788 /* TODO: unref root container, check all devices are ok */
4789
4790 return 0;
4791 }
QEmu