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hw/rdma: Fix possible munmap call on a NULL pointer
[qemu/ar7.git] / vl.c
blob7487535dca35d597a03e3a537244388b17b24987
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 "migration/postcopy-ram.h"
98 #include "sysemu/kvm.h"
99 #include "sysemu/hax.h"
100 #include "qapi/qobject-input-visitor.h"
101 #include "qemu/option.h"
102 #include "qemu/config-file.h"
103 #include "qemu-options.h"
104 #include "qemu/main-loop.h"
105 #ifdef CONFIG_VIRTFS
106 #include "fsdev/qemu-fsdev.h"
107 #endif
108 #include "sysemu/qtest.h"
109
110 #include "disas/disas.h"
111
112
113 #include "slirp/libslirp.h"
114
115 #include "trace-root.h"
116 #include "trace/control.h"
117 #include "qemu/queue.h"
118 #include "sysemu/arch_init.h"
119
120 #include "ui/qemu-spice.h"
121 #include "qapi/string-input-visitor.h"
122 #include "qapi/opts-visitor.h"
123 #include "qom/object_interfaces.h"
124 #include "exec/semihost.h"
125 #include "crypto/init.h"
126 #include "sysemu/replay.h"
127 #include "qapi/qapi-events-run-state.h"
128 #include "qapi/qapi-visit-block-core.h"
129 #include "qapi/qapi-commands-block-core.h"
130 #include "qapi/qapi-commands-misc.h"
131 #include "qapi/qapi-commands-run-state.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134
135 #define MAX_VIRTIO_CONSOLES 1
136 #define MAX_SCLP_CONSOLES 1
137
138 static const char *data_dir[16];
139 static int data_dir_idx;
140 const char *bios_name = NULL;
141 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
142 int display_opengl;
143 const char* keyboard_layout = NULL;
144 ram_addr_t ram_size;
145 const char *mem_path = NULL;
146 int mem_prealloc = 0; /* force preallocation of physical target memory */
147 bool enable_mlock = false;
148 int nb_nics;
149 NICInfo nd_table[MAX_NICS];
150 int autostart;
151 static int rtc_utc = 1;
152 static int rtc_date_offset = -1; /* -1 means no change */
153 QEMUClockType rtc_clock;
154 int vga_interface_type = VGA_NONE;
155 static DisplayOptions dpy;
156 int no_frame;
157 static int num_serial_hds = 0;
158 static Chardev **serial_hds = NULL;
159 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
160 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
161 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
162 int win2k_install_hack = 0;
163 int singlestep = 0;
164 int smp_cpus;
165 unsigned int max_cpus;
166 int smp_cores = 1;
167 int smp_threads = 1;
168 int acpi_enabled = 1;
169 int no_hpet = 0;
170 int fd_bootchk = 1;
171 static int no_reboot;
172 int no_shutdown = 0;
173 int cursor_hide = 1;
174 int graphic_rotate = 0;
175 const char *watchdog;
176 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
177 int nb_option_roms;
178 int old_param = 0;
179 const char *qemu_name;
180 int alt_grab = 0;
181 int ctrl_grab = 0;
182 unsigned int nb_prom_envs = 0;
183 const char *prom_envs[MAX_PROM_ENVS];
184 int boot_menu;
185 bool boot_strict;
186 uint8_t *boot_splash_filedata;
187 size_t boot_splash_filedata_size;
188 uint8_t qemu_extra_params_fw[2];
189
190 int icount_align_option;
191
192 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
193 * little-endian "wire format" described in the SMBIOS 2.6 specification.
194 */
195 QemuUUID qemu_uuid;
196 bool qemu_uuid_set;
197
198 static NotifierList exit_notifiers =
199 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
200
201 static NotifierList machine_init_done_notifiers =
202 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
203
204 bool xen_allowed;
205 uint32_t xen_domid;
206 enum xen_mode xen_mode = XEN_EMULATE;
207 bool xen_domid_restrict;
208
209 static int has_defaults = 1;
210 static int default_serial = 1;
211 static int default_parallel = 1;
212 static int default_virtcon = 1;
213 static int default_sclp = 1;
214 static int default_monitor = 1;
215 static int default_floppy = 1;
216 static int default_cdrom = 1;
217 static int default_sdcard = 1;
218 static int default_vga = 1;
219 static int default_net = 1;
220
221 static struct {
222 const char *driver;
223 int *flag;
224 } default_list[] = {
225 { .driver = "isa-serial", .flag = &default_serial },
226 { .driver = "isa-parallel", .flag = &default_parallel },
227 { .driver = "isa-fdc", .flag = &default_floppy },
228 { .driver = "floppy", .flag = &default_floppy },
229 { .driver = "ide-cd", .flag = &default_cdrom },
230 { .driver = "ide-hd", .flag = &default_cdrom },
231 { .driver = "ide-drive", .flag = &default_cdrom },
232 { .driver = "scsi-cd", .flag = &default_cdrom },
233 { .driver = "scsi-hd", .flag = &default_cdrom },
234 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
235 { .driver = "virtio-serial", .flag = &default_virtcon },
236 { .driver = "VGA", .flag = &default_vga },
237 { .driver = "isa-vga", .flag = &default_vga },
238 { .driver = "cirrus-vga", .flag = &default_vga },
239 { .driver = "isa-cirrus-vga", .flag = &default_vga },
240 { .driver = "vmware-svga", .flag = &default_vga },
241 { .driver = "qxl-vga", .flag = &default_vga },
242 { .driver = "virtio-vga", .flag = &default_vga },
243 };
244
245 static QemuOptsList qemu_rtc_opts = {
246 .name = "rtc",
247 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
248 .desc = {
249 {
250 .name = "base",
251 .type = QEMU_OPT_STRING,
252 },{
253 .name = "clock",
254 .type = QEMU_OPT_STRING,
255 },{
256 .name = "driftfix",
257 .type = QEMU_OPT_STRING,
258 },
259 { /* end of list */ }
260 },
261 };
262
263 static QemuOptsList qemu_sandbox_opts = {
264 .name = "sandbox",
265 .implied_opt_name = "enable",
266 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
267 .desc = {
268 {
269 .name = "enable",
270 .type = QEMU_OPT_BOOL,
271 },
272 {
273 .name = "obsolete",
274 .type = QEMU_OPT_STRING,
275 },
276 {
277 .name = "elevateprivileges",
278 .type = QEMU_OPT_STRING,
279 },
280 {
281 .name = "spawn",
282 .type = QEMU_OPT_STRING,
283 },
284 {
285 .name = "resourcecontrol",
286 .type = QEMU_OPT_STRING,
287 },
288 { /* end of list */ }
289 },
290 };
291
292 static QemuOptsList qemu_option_rom_opts = {
293 .name = "option-rom",
294 .implied_opt_name = "romfile",
295 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
296 .desc = {
297 {
298 .name = "bootindex",
299 .type = QEMU_OPT_NUMBER,
300 }, {
301 .name = "romfile",
302 .type = QEMU_OPT_STRING,
303 },
304 { /* end of list */ }
305 },
306 };
307
308 static QemuOptsList qemu_machine_opts = {
309 .name = "machine",
310 .implied_opt_name = "type",
311 .merge_lists = true,
312 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
313 .desc = {
314 /*
315 * no elements => accept any
316 * sanity checking will happen later
317 * when setting machine properties
318 */
319 { }
320 },
321 };
322
323 static QemuOptsList qemu_accel_opts = {
324 .name = "accel",
325 .implied_opt_name = "accel",
326 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
327 .merge_lists = true,
328 .desc = {
329 {
330 .name = "accel",
331 .type = QEMU_OPT_STRING,
332 .help = "Select the type of accelerator",
333 },
334 {
335 .name = "thread",
336 .type = QEMU_OPT_STRING,
337 .help = "Enable/disable multi-threaded TCG",
338 },
339 { /* end of list */ }
340 },
341 };
342
343 static QemuOptsList qemu_boot_opts = {
344 .name = "boot-opts",
345 .implied_opt_name = "order",
346 .merge_lists = true,
347 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
348 .desc = {
349 {
350 .name = "order",
351 .type = QEMU_OPT_STRING,
352 }, {
353 .name = "once",
354 .type = QEMU_OPT_STRING,
355 }, {
356 .name = "menu",
357 .type = QEMU_OPT_BOOL,
358 }, {
359 .name = "splash",
360 .type = QEMU_OPT_STRING,
361 }, {
362 .name = "splash-time",
363 .type = QEMU_OPT_STRING,
364 }, {
365 .name = "reboot-timeout",
366 .type = QEMU_OPT_STRING,
367 }, {
368 .name = "strict",
369 .type = QEMU_OPT_BOOL,
370 },
371 { /*End of list */ }
372 },
373 };
374
375 static QemuOptsList qemu_add_fd_opts = {
376 .name = "add-fd",
377 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
378 .desc = {
379 {
380 .name = "fd",
381 .type = QEMU_OPT_NUMBER,
382 .help = "file descriptor of which a duplicate is added to fd set",
383 },{
384 .name = "set",
385 .type = QEMU_OPT_NUMBER,
386 .help = "ID of the fd set to add fd to",
387 },{
388 .name = "opaque",
389 .type = QEMU_OPT_STRING,
390 .help = "free-form string used to describe fd",
391 },
392 { /* end of list */ }
393 },
394 };
395
396 static QemuOptsList qemu_object_opts = {
397 .name = "object",
398 .implied_opt_name = "qom-type",
399 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
400 .desc = {
401 { }
402 },
403 };
404
405 static QemuOptsList qemu_tpmdev_opts = {
406 .name = "tpmdev",
407 .implied_opt_name = "type",
408 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
409 .desc = {
410 /* options are defined in the TPM backends */
411 { /* end of list */ }
412 },
413 };
414
415 static QemuOptsList qemu_realtime_opts = {
416 .name = "realtime",
417 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
418 .desc = {
419 {
420 .name = "mlock",
421 .type = QEMU_OPT_BOOL,
422 },
423 { /* end of list */ }
424 },
425 };
426
427 static QemuOptsList qemu_msg_opts = {
428 .name = "msg",
429 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
430 .desc = {
431 {
432 .name = "timestamp",
433 .type = QEMU_OPT_BOOL,
434 },
435 { /* end of list */ }
436 },
437 };
438
439 static QemuOptsList qemu_name_opts = {
440 .name = "name",
441 .implied_opt_name = "guest",
442 .merge_lists = true,
443 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
444 .desc = {
445 {
446 .name = "guest",
447 .type = QEMU_OPT_STRING,
448 .help = "Sets the name of the guest.\n"
449 "This name will be displayed in the SDL window caption.\n"
450 "The name will also be used for the VNC server",
451 }, {
452 .name = "process",
453 .type = QEMU_OPT_STRING,
454 .help = "Sets the name of the QEMU process, as shown in top etc",
455 }, {
456 .name = "debug-threads",
457 .type = QEMU_OPT_BOOL,
458 .help = "When enabled, name the individual threads; defaults off.\n"
459 "NOTE: The thread names are for debugging and not a\n"
460 "stable API.",
461 },
462 { /* End of list */ }
463 },
464 };
465
466 static QemuOptsList qemu_mem_opts = {
467 .name = "memory",
468 .implied_opt_name = "size",
469 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
470 .merge_lists = true,
471 .desc = {
472 {
473 .name = "size",
474 .type = QEMU_OPT_SIZE,
475 },
476 {
477 .name = "slots",
478 .type = QEMU_OPT_NUMBER,
479 },
480 {
481 .name = "maxmem",
482 .type = QEMU_OPT_SIZE,
483 },
484 { /* end of list */ }
485 },
486 };
487
488 static QemuOptsList qemu_icount_opts = {
489 .name = "icount",
490 .implied_opt_name = "shift",
491 .merge_lists = true,
492 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
493 .desc = {
494 {
495 .name = "shift",
496 .type = QEMU_OPT_STRING,
497 }, {
498 .name = "align",
499 .type = QEMU_OPT_BOOL,
500 }, {
501 .name = "sleep",
502 .type = QEMU_OPT_BOOL,
503 }, {
504 .name = "rr",
505 .type = QEMU_OPT_STRING,
506 }, {
507 .name = "rrfile",
508 .type = QEMU_OPT_STRING,
509 }, {
510 .name = "rrsnapshot",
511 .type = QEMU_OPT_STRING,
512 },
513 { /* end of list */ }
514 },
515 };
516
517 static QemuOptsList qemu_semihosting_config_opts = {
518 .name = "semihosting-config",
519 .implied_opt_name = "enable",
520 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
521 .desc = {
522 {
523 .name = "enable",
524 .type = QEMU_OPT_BOOL,
525 }, {
526 .name = "target",
527 .type = QEMU_OPT_STRING,
528 }, {
529 .name = "arg",
530 .type = QEMU_OPT_STRING,
531 },
532 { /* end of list */ }
533 },
534 };
535
536 static QemuOptsList qemu_fw_cfg_opts = {
537 .name = "fw_cfg",
538 .implied_opt_name = "name",
539 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
540 .desc = {
541 {
542 .name = "name",
543 .type = QEMU_OPT_STRING,
544 .help = "Sets the fw_cfg name of the blob to be inserted",
545 }, {
546 .name = "file",
547 .type = QEMU_OPT_STRING,
548 .help = "Sets the name of the file from which\n"
549 "the fw_cfg blob will be loaded",
550 }, {
551 .name = "string",
552 .type = QEMU_OPT_STRING,
553 .help = "Sets content of the blob to be inserted from a string",
554 },
555 { /* end of list */ }
556 },
557 };
558
559 /**
560 * Get machine options
561 *
562 * Returns: machine options (never null).
563 */
564 QemuOpts *qemu_get_machine_opts(void)
565 {
566 return qemu_find_opts_singleton("machine");
567 }
568
569 const char *qemu_get_vm_name(void)
570 {
571 return qemu_name;
572 }
573
574 static void res_free(void)
575 {
576 g_free(boot_splash_filedata);
577 boot_splash_filedata = NULL;
578 }
579
580 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
581 {
582 const char *driver = qemu_opt_get(opts, "driver");
583 int i;
584
585 if (!driver)
586 return 0;
587 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
588 if (strcmp(default_list[i].driver, driver) != 0)
589 continue;
590 *(default_list[i].flag) = 0;
591 }
592 return 0;
593 }
594
595 /***********************************************************/
596 /* QEMU state */
597
598 static RunState current_run_state = RUN_STATE_PRELAUNCH;
599
600 /* We use RUN_STATE__MAX but any invalid value will do */
601 static RunState vmstop_requested = RUN_STATE__MAX;
602 static QemuMutex vmstop_lock;
603
604 typedef struct {
605 RunState from;
606 RunState to;
607 } RunStateTransition;
608
609 static const RunStateTransition runstate_transitions_def[] = {
610 /* from -> to */
611 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
612 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
613 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
614
615 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
616 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
617 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
618 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
619 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
620 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
621 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
622 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
623 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
624 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
625 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
626 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
627
628 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
629 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
630 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
631
632 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
633 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
635
636 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
637 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
638 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
639 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
640 { RUN_STATE_PAUSED, RUN_STATE_COLO},
641
642 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
643 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
645
646 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
647 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
648 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
649
650 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
651 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
652 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
653 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
654 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
655
656 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
657 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
658
659 { RUN_STATE_COLO, RUN_STATE_RUNNING },
660
661 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
662 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
663 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
664 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
665 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
666 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
667 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
668 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
669 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
670 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
671 { RUN_STATE_RUNNING, RUN_STATE_COLO},
672
673 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
674
675 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
676 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
677 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
678
679 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
680 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
681 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
682 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
683 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
684 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
685
686 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
687 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
688 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
689 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
690
691 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
692 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
693 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
694
695 { RUN_STATE__MAX, RUN_STATE__MAX },
696 };
697
698 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
699
700 bool runstate_check(RunState state)
701 {
702 return current_run_state == state;
703 }
704
705 bool runstate_store(char *str, size_t size)
706 {
707 const char *state = RunState_str(current_run_state);
708 size_t len = strlen(state) + 1;
709
710 if (len > size) {
711 return false;
712 }
713 memcpy(str, state, len);
714 return true;
715 }
716
717 static void runstate_init(void)
718 {
719 const RunStateTransition *p;
720
721 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
722 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
723 runstate_valid_transitions[p->from][p->to] = true;
724 }
725
726 qemu_mutex_init(&vmstop_lock);
727 }
728
729 /* This function will abort() on invalid state transitions */
730 void runstate_set(RunState new_state)
731 {
732 assert(new_state < RUN_STATE__MAX);
733
734 if (current_run_state == new_state) {
735 return;
736 }
737
738 if (!runstate_valid_transitions[current_run_state][new_state]) {
739 error_report("invalid runstate transition: '%s' -> '%s'",
740 RunState_str(current_run_state),
741 RunState_str(new_state));
742 abort();
743 }
744 trace_runstate_set(new_state);
745 current_run_state = new_state;
746 }
747
748 int runstate_is_running(void)
749 {
750 return runstate_check(RUN_STATE_RUNNING);
751 }
752
753 bool runstate_needs_reset(void)
754 {
755 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
756 runstate_check(RUN_STATE_SHUTDOWN);
757 }
758
759 StatusInfo *qmp_query_status(Error **errp)
760 {
761 StatusInfo *info = g_malloc0(sizeof(*info));
762
763 info->running = runstate_is_running();
764 info->singlestep = singlestep;
765 info->status = current_run_state;
766
767 return info;
768 }
769
770 bool qemu_vmstop_requested(RunState *r)
771 {
772 qemu_mutex_lock(&vmstop_lock);
773 *r = vmstop_requested;
774 vmstop_requested = RUN_STATE__MAX;
775 qemu_mutex_unlock(&vmstop_lock);
776 return *r < RUN_STATE__MAX;
777 }
778
779 void qemu_system_vmstop_request_prepare(void)
780 {
781 qemu_mutex_lock(&vmstop_lock);
782 }
783
784 void qemu_system_vmstop_request(RunState state)
785 {
786 vmstop_requested = state;
787 qemu_mutex_unlock(&vmstop_lock);
788 qemu_notify_event();
789 }
790
791 /***********************************************************/
792 /* real time host monotonic timer */
793
794 static time_t qemu_time(void)
795 {
796 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
797 }
798
799 /***********************************************************/
800 /* host time/date access */
801 void qemu_get_timedate(struct tm *tm, int offset)
802 {
803 time_t ti = qemu_time();
804
805 ti += offset;
806 if (rtc_date_offset == -1) {
807 if (rtc_utc)
808 gmtime_r(&ti, tm);
809 else
810 localtime_r(&ti, tm);
811 } else {
812 ti -= rtc_date_offset;
813 gmtime_r(&ti, tm);
814 }
815 }
816
817 int qemu_timedate_diff(struct tm *tm)
818 {
819 time_t seconds;
820
821 if (rtc_date_offset == -1)
822 if (rtc_utc)
823 seconds = mktimegm(tm);
824 else {
825 struct tm tmp = *tm;
826 tmp.tm_isdst = -1; /* use timezone to figure it out */
827 seconds = mktime(&tmp);
828 }
829 else
830 seconds = mktimegm(tm) + rtc_date_offset;
831
832 return seconds - qemu_time();
833 }
834
835 static void configure_rtc_date_offset(const char *startdate, int legacy)
836 {
837 time_t rtc_start_date;
838 struct tm tm;
839
840 if (!strcmp(startdate, "now") && legacy) {
841 rtc_date_offset = -1;
842 } else {
843 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
844 &tm.tm_year,
845 &tm.tm_mon,
846 &tm.tm_mday,
847 &tm.tm_hour,
848 &tm.tm_min,
849 &tm.tm_sec) == 6) {
850 /* OK */
851 } else if (sscanf(startdate, "%d-%d-%d",
852 &tm.tm_year,
853 &tm.tm_mon,
854 &tm.tm_mday) == 3) {
855 tm.tm_hour = 0;
856 tm.tm_min = 0;
857 tm.tm_sec = 0;
858 } else {
859 goto date_fail;
860 }
861 tm.tm_year -= 1900;
862 tm.tm_mon--;
863 rtc_start_date = mktimegm(&tm);
864 if (rtc_start_date == -1) {
865 date_fail:
866 error_report("invalid date format");
867 error_printf("valid formats: "
868 "'2006-06-17T16:01:21' or '2006-06-17'\n");
869 exit(1);
870 }
871 rtc_date_offset = qemu_time() - rtc_start_date;
872 }
873 }
874
875 static void configure_rtc(QemuOpts *opts)
876 {
877 const char *value;
878
879 value = qemu_opt_get(opts, "base");
880 if (value) {
881 if (!strcmp(value, "utc")) {
882 rtc_utc = 1;
883 } else if (!strcmp(value, "localtime")) {
884 Error *blocker = NULL;
885 rtc_utc = 0;
886 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
887 "-rtc base=localtime");
888 replay_add_blocker(blocker);
889 } else {
890 configure_rtc_date_offset(value, 0);
891 }
892 }
893 value = qemu_opt_get(opts, "clock");
894 if (value) {
895 if (!strcmp(value, "host")) {
896 rtc_clock = QEMU_CLOCK_HOST;
897 } else if (!strcmp(value, "rt")) {
898 rtc_clock = QEMU_CLOCK_REALTIME;
899 } else if (!strcmp(value, "vm")) {
900 rtc_clock = QEMU_CLOCK_VIRTUAL;
901 } else {
902 error_report("invalid option value '%s'", value);
903 exit(1);
904 }
905 }
906 value = qemu_opt_get(opts, "driftfix");
907 if (value) {
908 if (!strcmp(value, "slew")) {
909 static GlobalProperty slew_lost_ticks = {
910 .driver = "mc146818rtc",
911 .property = "lost_tick_policy",
912 .value = "slew",
913 };
914
915 qdev_prop_register_global(&slew_lost_ticks);
916 } else if (!strcmp(value, "none")) {
917 /* discard is default */
918 } else {
919 error_report("invalid option value '%s'", value);
920 exit(1);
921 }
922 }
923 }
924
925 /***********************************************************/
926 /* Bluetooth support */
927 static int nb_hcis;
928 static int cur_hci;
929 static struct HCIInfo *hci_table[MAX_NICS];
930
931 struct HCIInfo *qemu_next_hci(void)
932 {
933 if (cur_hci == nb_hcis)
934 return &null_hci;
935
936 return hci_table[cur_hci++];
937 }
938
939 static int bt_hci_parse(const char *str)
940 {
941 struct HCIInfo *hci;
942 bdaddr_t bdaddr;
943
944 if (nb_hcis >= MAX_NICS) {
945 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
946 return -1;
947 }
948
949 hci = hci_init(str);
950 if (!hci)
951 return -1;
952
953 bdaddr.b[0] = 0x52;
954 bdaddr.b[1] = 0x54;
955 bdaddr.b[2] = 0x00;
956 bdaddr.b[3] = 0x12;
957 bdaddr.b[4] = 0x34;
958 bdaddr.b[5] = 0x56 + nb_hcis;
959 hci->bdaddr_set(hci, bdaddr.b);
960
961 hci_table[nb_hcis++] = hci;
962
963 return 0;
964 }
965
966 static void bt_vhci_add(int vlan_id)
967 {
968 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
969
970 if (!vlan->slave)
971 warn_report("adding a VHCI to an empty scatternet %i",
972 vlan_id);
973
974 bt_vhci_init(bt_new_hci(vlan));
975 }
976
977 static struct bt_device_s *bt_device_add(const char *opt)
978 {
979 struct bt_scatternet_s *vlan;
980 int vlan_id = 0;
981 char *endp = strstr(opt, ",vlan=");
982 int len = (endp ? endp - opt : strlen(opt)) + 1;
983 char devname[10];
984
985 pstrcpy(devname, MIN(sizeof(devname), len), opt);
986
987 if (endp) {
988 vlan_id = strtol(endp + 6, &endp, 0);
989 if (*endp) {
990 error_report("unrecognised bluetooth vlan Id");
991 return 0;
992 }
993 }
994
995 vlan = qemu_find_bt_vlan(vlan_id);
996
997 if (!vlan->slave)
998 warn_report("adding a slave device to an empty scatternet %i",
999 vlan_id);
1000
1001 if (!strcmp(devname, "keyboard"))
1002 return bt_keyboard_init(vlan);
1003
1004 error_report("unsupported bluetooth device '%s'", devname);
1005 return 0;
1006 }
1007
1008 static int bt_parse(const char *opt)
1009 {
1010 const char *endp, *p;
1011 int vlan;
1012
1013 if (strstart(opt, "hci", &endp)) {
1014 if (!*endp || *endp == ',') {
1015 if (*endp)
1016 if (!strstart(endp, ",vlan=", 0))
1017 opt = endp + 1;
1018
1019 return bt_hci_parse(opt);
1020 }
1021 } else if (strstart(opt, "vhci", &endp)) {
1022 if (!*endp || *endp == ',') {
1023 if (*endp) {
1024 if (strstart(endp, ",vlan=", &p)) {
1025 vlan = strtol(p, (char **) &endp, 0);
1026 if (*endp) {
1027 error_report("bad scatternet '%s'", p);
1028 return 1;
1029 }
1030 } else {
1031 error_report("bad parameter '%s'", endp + 1);
1032 return 1;
1033 }
1034 } else
1035 vlan = 0;
1036
1037 bt_vhci_add(vlan);
1038 return 0;
1039 }
1040 } else if (strstart(opt, "device:", &endp))
1041 return !bt_device_add(endp);
1042
1043 error_report("bad bluetooth parameter '%s'", opt);
1044 return 1;
1045 }
1046
1047 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1048 {
1049 if (qemu_opt_get_bool(opts, "enable", false)) {
1050 #ifdef CONFIG_SECCOMP
1051 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1052 | QEMU_SECCOMP_SET_OBSOLETE;
1053 const char *value = NULL;
1054
1055 value = qemu_opt_get(opts, "obsolete");
1056 if (value) {
1057 if (g_str_equal(value, "allow")) {
1058 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1059 } else if (g_str_equal(value, "deny")) {
1060 /* this is the default option, this if is here
1061 * to provide a little bit of consistency for
1062 * the command line */
1063 } else {
1064 error_report("invalid argument for obsolete");
1065 return -1;
1066 }
1067 }
1068
1069 value = qemu_opt_get(opts, "elevateprivileges");
1070 if (value) {
1071 if (g_str_equal(value, "deny")) {
1072 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1073 } else if (g_str_equal(value, "children")) {
1074 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1075
1076 /* calling prctl directly because we're
1077 * not sure if host has CAP_SYS_ADMIN set*/
1078 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1079 error_report("failed to set no_new_privs "
1080 "aborting");
1081 return -1;
1082 }
1083 } else if (g_str_equal(value, "allow")) {
1084 /* default value */
1085 } else {
1086 error_report("invalid argument for elevateprivileges");
1087 return -1;
1088 }
1089 }
1090
1091 value = qemu_opt_get(opts, "spawn");
1092 if (value) {
1093 if (g_str_equal(value, "deny")) {
1094 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1095 } else if (g_str_equal(value, "allow")) {
1096 /* default value */
1097 } else {
1098 error_report("invalid argument for spawn");
1099 return -1;
1100 }
1101 }
1102
1103 value = qemu_opt_get(opts, "resourcecontrol");
1104 if (value) {
1105 if (g_str_equal(value, "deny")) {
1106 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1107 } else if (g_str_equal(value, "allow")) {
1108 /* default value */
1109 } else {
1110 error_report("invalid argument for resourcecontrol");
1111 return -1;
1112 }
1113 }
1114
1115 if (seccomp_start(seccomp_opts) < 0) {
1116 error_report("failed to install seccomp syscall filter "
1117 "in the kernel");
1118 return -1;
1119 }
1120 #else
1121 error_report("seccomp support is disabled");
1122 return -1;
1123 #endif
1124 }
1125
1126 return 0;
1127 }
1128
1129 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1130 {
1131 const char *proc_name;
1132
1133 if (qemu_opt_get(opts, "debug-threads")) {
1134 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1135 }
1136 qemu_name = qemu_opt_get(opts, "guest");
1137
1138 proc_name = qemu_opt_get(opts, "process");
1139 if (proc_name) {
1140 os_set_proc_name(proc_name);
1141 }
1142
1143 return 0;
1144 }
1145
1146 bool defaults_enabled(void)
1147 {
1148 return has_defaults;
1149 }
1150
1151 #ifndef _WIN32
1152 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1153 {
1154 int fd, dupfd, flags;
1155 int64_t fdset_id;
1156 const char *fd_opaque = NULL;
1157 AddfdInfo *fdinfo;
1158
1159 fd = qemu_opt_get_number(opts, "fd", -1);
1160 fdset_id = qemu_opt_get_number(opts, "set", -1);
1161 fd_opaque = qemu_opt_get(opts, "opaque");
1162
1163 if (fd < 0) {
1164 error_report("fd option is required and must be non-negative");
1165 return -1;
1166 }
1167
1168 if (fd <= STDERR_FILENO) {
1169 error_report("fd cannot be a standard I/O stream");
1170 return -1;
1171 }
1172
1173 /*
1174 * All fds inherited across exec() necessarily have FD_CLOEXEC
1175 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1176 */
1177 flags = fcntl(fd, F_GETFD);
1178 if (flags == -1 || (flags & FD_CLOEXEC)) {
1179 error_report("fd is not valid or already in use");
1180 return -1;
1181 }
1182
1183 if (fdset_id < 0) {
1184 error_report("set option is required and must be non-negative");
1185 return -1;
1186 }
1187
1188 #ifdef F_DUPFD_CLOEXEC
1189 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1190 #else
1191 dupfd = dup(fd);
1192 if (dupfd != -1) {
1193 qemu_set_cloexec(dupfd);
1194 }
1195 #endif
1196 if (dupfd == -1) {
1197 error_report("error duplicating fd: %s", strerror(errno));
1198 return -1;
1199 }
1200
1201 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1202 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1203 &error_abort);
1204 g_free(fdinfo);
1205
1206 return 0;
1207 }
1208
1209 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1210 {
1211 int fd;
1212
1213 fd = qemu_opt_get_number(opts, "fd", -1);
1214 close(fd);
1215
1216 return 0;
1217 }
1218 #endif
1219
1220 /***********************************************************/
1221 /* QEMU Block devices */
1222
1223 #define HD_OPTS "media=disk"
1224 #define CDROM_OPTS "media=cdrom"
1225 #define FD_OPTS ""
1226 #define PFLASH_OPTS ""
1227 #define MTD_OPTS ""
1228 #define SD_OPTS ""
1229
1230 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1231 {
1232 BlockInterfaceType *block_default_type = opaque;
1233
1234 return drive_new(opts, *block_default_type) == NULL;
1235 }
1236
1237 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1238 {
1239 if (qemu_opt_get(opts, "snapshot") == NULL) {
1240 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1241 }
1242 return 0;
1243 }
1244
1245 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1246 int index, const char *optstr)
1247 {
1248 QemuOpts *opts;
1249 DriveInfo *dinfo;
1250
1251 if (!enable || drive_get_by_index(type, index)) {
1252 return;
1253 }
1254
1255 opts = drive_add(type, index, NULL, optstr);
1256 if (snapshot) {
1257 drive_enable_snapshot(NULL, opts, NULL);
1258 }
1259
1260 dinfo = drive_new(opts, type);
1261 if (!dinfo) {
1262 exit(1);
1263 }
1264 dinfo->is_default = true;
1265
1266 }
1267
1268 static QemuOptsList qemu_smp_opts = {
1269 .name = "smp-opts",
1270 .implied_opt_name = "cpus",
1271 .merge_lists = true,
1272 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1273 .desc = {
1274 {
1275 .name = "cpus",
1276 .type = QEMU_OPT_NUMBER,
1277 }, {
1278 .name = "sockets",
1279 .type = QEMU_OPT_NUMBER,
1280 }, {
1281 .name = "cores",
1282 .type = QEMU_OPT_NUMBER,
1283 }, {
1284 .name = "threads",
1285 .type = QEMU_OPT_NUMBER,
1286 }, {
1287 .name = "maxcpus",
1288 .type = QEMU_OPT_NUMBER,
1289 },
1290 { /*End of list */ }
1291 },
1292 };
1293
1294 static void smp_parse(QemuOpts *opts)
1295 {
1296 if (opts) {
1297 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1298 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1299 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1300 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1301
1302 /* compute missing values, prefer sockets over cores over threads */
1303 if (cpus == 0 || sockets == 0) {
1304 sockets = sockets > 0 ? sockets : 1;
1305 cores = cores > 0 ? cores : 1;
1306 threads = threads > 0 ? threads : 1;
1307 if (cpus == 0) {
1308 cpus = cores * threads * sockets;
1309 }
1310 } else if (cores == 0) {
1311 threads = threads > 0 ? threads : 1;
1312 cores = cpus / (sockets * threads);
1313 cores = cores > 0 ? cores : 1;
1314 } else if (threads == 0) {
1315 threads = cpus / (cores * sockets);
1316 threads = threads > 0 ? threads : 1;
1317 } else if (sockets * cores * threads < cpus) {
1318 error_report("cpu topology: "
1319 "sockets (%u) * cores (%u) * threads (%u) < "
1320 "smp_cpus (%u)",
1321 sockets, cores, threads, cpus);
1322 exit(1);
1323 }
1324
1325 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1326
1327 if (max_cpus < cpus) {
1328 error_report("maxcpus must be equal to or greater than smp");
1329 exit(1);
1330 }
1331
1332 if (sockets * cores * threads > max_cpus) {
1333 error_report("cpu topology: "
1334 "sockets (%u) * cores (%u) * threads (%u) > "
1335 "maxcpus (%u)",
1336 sockets, cores, threads, max_cpus);
1337 exit(1);
1338 }
1339
1340 smp_cpus = cpus;
1341 smp_cores = cores;
1342 smp_threads = threads;
1343 }
1344
1345 if (smp_cpus > 1) {
1346 Error *blocker = NULL;
1347 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1348 replay_add_blocker(blocker);
1349 }
1350 }
1351
1352 static void realtime_init(void)
1353 {
1354 if (enable_mlock) {
1355 if (os_mlock() < 0) {
1356 error_report("locking memory failed");
1357 exit(1);
1358 }
1359 }
1360 }
1361
1362
1363 static void configure_msg(QemuOpts *opts)
1364 {
1365 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1366 }
1367
1368 /***********************************************************/
1369 /* Semihosting */
1370
1371 typedef struct SemihostingConfig {
1372 bool enabled;
1373 SemihostingTarget target;
1374 const char **argv;
1375 int argc;
1376 const char *cmdline; /* concatenated argv */
1377 } SemihostingConfig;
1378
1379 static SemihostingConfig semihosting;
1380
1381 bool semihosting_enabled(void)
1382 {
1383 return semihosting.enabled;
1384 }
1385
1386 SemihostingTarget semihosting_get_target(void)
1387 {
1388 return semihosting.target;
1389 }
1390
1391 const char *semihosting_get_arg(int i)
1392 {
1393 if (i >= semihosting.argc) {
1394 return NULL;
1395 }
1396 return semihosting.argv[i];
1397 }
1398
1399 int semihosting_get_argc(void)
1400 {
1401 return semihosting.argc;
1402 }
1403
1404 const char *semihosting_get_cmdline(void)
1405 {
1406 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1407 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1408 }
1409 return semihosting.cmdline;
1410 }
1411
1412 static int add_semihosting_arg(void *opaque,
1413 const char *name, const char *val,
1414 Error **errp)
1415 {
1416 SemihostingConfig *s = opaque;
1417 if (strcmp(name, "arg") == 0) {
1418 s->argc++;
1419 /* one extra element as g_strjoinv() expects NULL-terminated array */
1420 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1421 s->argv[s->argc - 1] = val;
1422 s->argv[s->argc] = NULL;
1423 }
1424 return 0;
1425 }
1426
1427 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1428 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1429 {
1430 char *cmd_token;
1431
1432 /* argv[0] */
1433 add_semihosting_arg(&semihosting, "arg", file, NULL);
1434
1435 /* split -append and initialize argv[1..n] */
1436 cmd_token = strtok(g_strdup(cmd), " ");
1437 while (cmd_token) {
1438 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1439 cmd_token = strtok(NULL, " ");
1440 }
1441 }
1442
1443 /* Now we still need this for compatibility with XEN. */
1444 bool has_igd_gfx_passthru;
1445 static void igd_gfx_passthru(void)
1446 {
1447 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1448 }
1449
1450 /***********************************************************/
1451 /* USB devices */
1452
1453 static int usb_device_add(const char *devname)
1454 {
1455 USBDevice *dev = NULL;
1456
1457 if (!machine_usb(current_machine)) {
1458 return -1;
1459 }
1460
1461 dev = usbdevice_create(devname);
1462 if (!dev)
1463 return -1;
1464
1465 return 0;
1466 }
1467
1468 static int usb_parse(const char *cmdline)
1469 {
1470 int r;
1471 r = usb_device_add(cmdline);
1472 if (r < 0) {
1473 error_report("could not add USB device '%s'", cmdline);
1474 }
1475 return r;
1476 }
1477
1478 /***********************************************************/
1479 /* machine registration */
1480
1481 MachineState *current_machine;
1482
1483 static MachineClass *find_machine(const char *name)
1484 {
1485 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1486 MachineClass *mc = NULL;
1487
1488 for (el = machines; el; el = el->next) {
1489 MachineClass *temp = el->data;
1490
1491 if (!strcmp(temp->name, name)) {
1492 mc = temp;
1493 break;
1494 }
1495 if (temp->alias &&
1496 !strcmp(temp->alias, name)) {
1497 mc = temp;
1498 break;
1499 }
1500 }
1501
1502 g_slist_free(machines);
1503 return mc;
1504 }
1505
1506 MachineClass *find_default_machine(void)
1507 {
1508 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1509 MachineClass *mc = NULL;
1510
1511 for (el = machines; el; el = el->next) {
1512 MachineClass *temp = el->data;
1513
1514 if (temp->is_default) {
1515 mc = temp;
1516 break;
1517 }
1518 }
1519
1520 g_slist_free(machines);
1521 return mc;
1522 }
1523
1524 MachineInfoList *qmp_query_machines(Error **errp)
1525 {
1526 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1527 MachineInfoList *mach_list = NULL;
1528
1529 for (el = machines; el; el = el->next) {
1530 MachineClass *mc = el->data;
1531 MachineInfoList *entry;
1532 MachineInfo *info;
1533
1534 info = g_malloc0(sizeof(*info));
1535 if (mc->is_default) {
1536 info->has_is_default = true;
1537 info->is_default = true;
1538 }
1539
1540 if (mc->alias) {
1541 info->has_alias = true;
1542 info->alias = g_strdup(mc->alias);
1543 }
1544
1545 info->name = g_strdup(mc->name);
1546 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1547 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1548
1549 entry = g_malloc0(sizeof(*entry));
1550 entry->value = info;
1551 entry->next = mach_list;
1552 mach_list = entry;
1553 }
1554
1555 g_slist_free(machines);
1556 return mach_list;
1557 }
1558
1559 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1560 {
1561 ObjectProperty *prop;
1562 ObjectPropertyIterator iter;
1563
1564 if (!qemu_opt_has_help_opt(opts)) {
1565 return 0;
1566 }
1567
1568 object_property_iter_init(&iter, OBJECT(machine));
1569 while ((prop = object_property_iter_next(&iter))) {
1570 if (!prop->set) {
1571 continue;
1572 }
1573
1574 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1575 prop->name, prop->type);
1576 if (prop->description) {
1577 error_printf(" (%s)\n", prop->description);
1578 } else {
1579 error_printf("\n");
1580 }
1581 }
1582
1583 return 1;
1584 }
1585
1586 /***********************************************************/
1587 /* main execution loop */
1588
1589 struct vm_change_state_entry {
1590 VMChangeStateHandler *cb;
1591 void *opaque;
1592 QLIST_ENTRY (vm_change_state_entry) entries;
1593 };
1594
1595 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1596
1597 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1598 void *opaque)
1599 {
1600 VMChangeStateEntry *e;
1601
1602 e = g_malloc0(sizeof (*e));
1603
1604 e->cb = cb;
1605 e->opaque = opaque;
1606 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1607 return e;
1608 }
1609
1610 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1611 {
1612 QLIST_REMOVE (e, entries);
1613 g_free (e);
1614 }
1615
1616 void vm_state_notify(int running, RunState state)
1617 {
1618 VMChangeStateEntry *e, *next;
1619
1620 trace_vm_state_notify(running, state);
1621
1622 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1623 e->cb(e->opaque, running, state);
1624 }
1625 }
1626
1627 static ShutdownCause reset_requested;
1628 static ShutdownCause shutdown_requested;
1629 static int shutdown_signal;
1630 static pid_t shutdown_pid;
1631 static int powerdown_requested;
1632 static int debug_requested;
1633 static int suspend_requested;
1634 static WakeupReason wakeup_reason;
1635 static NotifierList powerdown_notifiers =
1636 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1637 static NotifierList suspend_notifiers =
1638 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1639 static NotifierList wakeup_notifiers =
1640 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1641 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1642
1643 ShutdownCause qemu_shutdown_requested_get(void)
1644 {
1645 return shutdown_requested;
1646 }
1647
1648 ShutdownCause qemu_reset_requested_get(void)
1649 {
1650 return reset_requested;
1651 }
1652
1653 static int qemu_shutdown_requested(void)
1654 {
1655 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1656 }
1657
1658 static void qemu_kill_report(void)
1659 {
1660 if (!qtest_driver() && shutdown_signal) {
1661 if (shutdown_pid == 0) {
1662 /* This happens for eg ^C at the terminal, so it's worth
1663 * avoiding printing an odd message in that case.
1664 */
1665 error_report("terminating on signal %d", shutdown_signal);
1666 } else {
1667 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1668
1669 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1670 shutdown_signal, shutdown_pid,
1671 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1672 g_free(shutdown_cmd);
1673 }
1674 shutdown_signal = 0;
1675 }
1676 }
1677
1678 static ShutdownCause qemu_reset_requested(void)
1679 {
1680 ShutdownCause r = reset_requested;
1681
1682 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1683 reset_requested = SHUTDOWN_CAUSE_NONE;
1684 return r;
1685 }
1686 return SHUTDOWN_CAUSE_NONE;
1687 }
1688
1689 static int qemu_suspend_requested(void)
1690 {
1691 int r = suspend_requested;
1692 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1693 suspend_requested = 0;
1694 return r;
1695 }
1696 return false;
1697 }
1698
1699 static WakeupReason qemu_wakeup_requested(void)
1700 {
1701 return wakeup_reason;
1702 }
1703
1704 static int qemu_powerdown_requested(void)
1705 {
1706 int r = powerdown_requested;
1707 powerdown_requested = 0;
1708 return r;
1709 }
1710
1711 static int qemu_debug_requested(void)
1712 {
1713 int r = debug_requested;
1714 debug_requested = 0;
1715 return r;
1716 }
1717
1718 /*
1719 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1720 */
1721 void qemu_system_reset(ShutdownCause reason)
1722 {
1723 MachineClass *mc;
1724
1725 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1726
1727 cpu_synchronize_all_states();
1728
1729 if (mc && mc->reset) {
1730 mc->reset();
1731 } else {
1732 qemu_devices_reset();
1733 }
1734 if (reason) {
1735 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1736 &error_abort);
1737 }
1738 cpu_synchronize_all_post_reset();
1739 }
1740
1741 void qemu_system_guest_panicked(GuestPanicInformation *info)
1742 {
1743 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1744
1745 if (current_cpu) {
1746 current_cpu->crash_occurred = true;
1747 }
1748 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1749 !!info, info, &error_abort);
1750 vm_stop(RUN_STATE_GUEST_PANICKED);
1751 if (!no_shutdown) {
1752 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1753 !!info, info, &error_abort);
1754 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1755 }
1756
1757 if (info) {
1758 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1759 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1760 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1761 info->u.hyper_v.arg1,
1762 info->u.hyper_v.arg2,
1763 info->u.hyper_v.arg3,
1764 info->u.hyper_v.arg4,
1765 info->u.hyper_v.arg5);
1766 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1767 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1768 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1769 info->u.s390.core,
1770 S390CrashReason_str(info->u.s390.reason),
1771 info->u.s390.psw_mask,
1772 info->u.s390.psw_addr);
1773 }
1774 qapi_free_GuestPanicInformation(info);
1775 }
1776 }
1777
1778 void qemu_system_reset_request(ShutdownCause reason)
1779 {
1780 if (no_reboot) {
1781 shutdown_requested = reason;
1782 } else {
1783 reset_requested = reason;
1784 }
1785 cpu_stop_current();
1786 qemu_notify_event();
1787 }
1788
1789 static void qemu_system_suspend(void)
1790 {
1791 pause_all_vcpus();
1792 notifier_list_notify(&suspend_notifiers, NULL);
1793 runstate_set(RUN_STATE_SUSPENDED);
1794 qapi_event_send_suspend(&error_abort);
1795 }
1796
1797 void qemu_system_suspend_request(void)
1798 {
1799 if (runstate_check(RUN_STATE_SUSPENDED)) {
1800 return;
1801 }
1802 suspend_requested = 1;
1803 cpu_stop_current();
1804 qemu_notify_event();
1805 }
1806
1807 void qemu_register_suspend_notifier(Notifier *notifier)
1808 {
1809 notifier_list_add(&suspend_notifiers, notifier);
1810 }
1811
1812 void qemu_system_wakeup_request(WakeupReason reason)
1813 {
1814 trace_system_wakeup_request(reason);
1815
1816 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1817 return;
1818 }
1819 if (!(wakeup_reason_mask & (1 << reason))) {
1820 return;
1821 }
1822 runstate_set(RUN_STATE_RUNNING);
1823 wakeup_reason = reason;
1824 qemu_notify_event();
1825 }
1826
1827 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1828 {
1829 if (enabled) {
1830 wakeup_reason_mask |= (1 << reason);
1831 } else {
1832 wakeup_reason_mask &= ~(1 << reason);
1833 }
1834 }
1835
1836 void qemu_register_wakeup_notifier(Notifier *notifier)
1837 {
1838 notifier_list_add(&wakeup_notifiers, notifier);
1839 }
1840
1841 void qemu_system_killed(int signal, pid_t pid)
1842 {
1843 shutdown_signal = signal;
1844 shutdown_pid = pid;
1845 no_shutdown = 0;
1846
1847 /* Cannot call qemu_system_shutdown_request directly because
1848 * we are in a signal handler.
1849 */
1850 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1851 qemu_notify_event();
1852 }
1853
1854 void qemu_system_shutdown_request(ShutdownCause reason)
1855 {
1856 trace_qemu_system_shutdown_request(reason);
1857 replay_shutdown_request(reason);
1858 shutdown_requested = reason;
1859 qemu_notify_event();
1860 }
1861
1862 static void qemu_system_powerdown(void)
1863 {
1864 qapi_event_send_powerdown(&error_abort);
1865 notifier_list_notify(&powerdown_notifiers, NULL);
1866 }
1867
1868 void qemu_system_powerdown_request(void)
1869 {
1870 trace_qemu_system_powerdown_request();
1871 powerdown_requested = 1;
1872 qemu_notify_event();
1873 }
1874
1875 void qemu_register_powerdown_notifier(Notifier *notifier)
1876 {
1877 notifier_list_add(&powerdown_notifiers, notifier);
1878 }
1879
1880 void qemu_system_debug_request(void)
1881 {
1882 debug_requested = 1;
1883 qemu_notify_event();
1884 }
1885
1886 static bool main_loop_should_exit(void)
1887 {
1888 RunState r;
1889 ShutdownCause request;
1890
1891 if (qemu_debug_requested()) {
1892 vm_stop(RUN_STATE_DEBUG);
1893 }
1894 if (qemu_suspend_requested()) {
1895 qemu_system_suspend();
1896 }
1897 request = qemu_shutdown_requested();
1898 if (request) {
1899 qemu_kill_report();
1900 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1901 &error_abort);
1902 if (no_shutdown) {
1903 vm_stop(RUN_STATE_SHUTDOWN);
1904 } else {
1905 return true;
1906 }
1907 }
1908 request = qemu_reset_requested();
1909 if (request) {
1910 pause_all_vcpus();
1911 qemu_system_reset(request);
1912 resume_all_vcpus();
1913 if (!runstate_check(RUN_STATE_RUNNING) &&
1914 !runstate_check(RUN_STATE_INMIGRATE)) {
1915 runstate_set(RUN_STATE_PRELAUNCH);
1916 }
1917 }
1918 if (qemu_wakeup_requested()) {
1919 pause_all_vcpus();
1920 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1921 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1922 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1923 resume_all_vcpus();
1924 qapi_event_send_wakeup(&error_abort);
1925 }
1926 if (qemu_powerdown_requested()) {
1927 qemu_system_powerdown();
1928 }
1929 if (qemu_vmstop_requested(&r)) {
1930 vm_stop(r);
1931 }
1932 return false;
1933 }
1934
1935 static void main_loop(void)
1936 {
1937 #ifdef CONFIG_PROFILER
1938 int64_t ti;
1939 #endif
1940 do {
1941 #ifdef CONFIG_PROFILER
1942 ti = profile_getclock();
1943 #endif
1944 main_loop_wait(false);
1945 #ifdef CONFIG_PROFILER
1946 dev_time += profile_getclock() - ti;
1947 #endif
1948 } while (!main_loop_should_exit());
1949 }
1950
1951 static void version(void)
1952 {
1953 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1954 QEMU_COPYRIGHT "\n");
1955 }
1956
1957 static void help(int exitcode)
1958 {
1959 version();
1960 printf("usage: %s [options] [disk_image]\n\n"
1961 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1962 error_get_progname());
1963
1964 #define QEMU_OPTIONS_GENERATE_HELP
1965 #include "qemu-options-wrapper.h"
1966
1967 printf("\nDuring emulation, the following keys are useful:\n"
1968 "ctrl-alt-f toggle full screen\n"
1969 "ctrl-alt-n switch to virtual console 'n'\n"
1970 "ctrl-alt toggle mouse and keyboard grab\n"
1971 "\n"
1972 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1973 "\n"
1974 QEMU_HELP_BOTTOM "\n");
1975
1976 exit(exitcode);
1977 }
1978
1979 #define HAS_ARG 0x0001
1980
1981 typedef struct QEMUOption {
1982 const char *name;
1983 int flags;
1984 int index;
1985 uint32_t arch_mask;
1986 } QEMUOption;
1987
1988 static const QEMUOption qemu_options[] = {
1989 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1990 #define QEMU_OPTIONS_GENERATE_OPTIONS
1991 #include "qemu-options-wrapper.h"
1992 { NULL },
1993 };
1994
1995 typedef struct VGAInterfaceInfo {
1996 const char *opt_name; /* option name */
1997 const char *name; /* human-readable name */
1998 /* Class names indicating that support is available.
1999 * If no class is specified, the interface is always available */
2000 const char *class_names[2];
2001 } VGAInterfaceInfo;
2002
2003 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2004 [VGA_NONE] = {
2005 .opt_name = "none",
2006 },
2007 [VGA_STD] = {
2008 .opt_name = "std",
2009 .name = "standard VGA",
2010 .class_names = { "VGA", "isa-vga" },
2011 },
2012 [VGA_CIRRUS] = {
2013 .opt_name = "cirrus",
2014 .name = "Cirrus VGA",
2015 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2016 },
2017 [VGA_VMWARE] = {
2018 .opt_name = "vmware",
2019 .name = "VMWare SVGA",
2020 .class_names = { "vmware-svga" },
2021 },
2022 [VGA_VIRTIO] = {
2023 .opt_name = "virtio",
2024 .name = "Virtio VGA",
2025 .class_names = { "virtio-vga" },
2026 },
2027 [VGA_QXL] = {
2028 .opt_name = "qxl",
2029 .name = "QXL VGA",
2030 .class_names = { "qxl-vga" },
2031 },
2032 [VGA_TCX] = {
2033 .opt_name = "tcx",
2034 .name = "TCX framebuffer",
2035 .class_names = { "SUNW,tcx" },
2036 },
2037 [VGA_CG3] = {
2038 .opt_name = "cg3",
2039 .name = "CG3 framebuffer",
2040 .class_names = { "cgthree" },
2041 },
2042 [VGA_XENFB] = {
2043 .opt_name = "xenfb",
2044 },
2045 };
2046
2047 static bool vga_interface_available(VGAInterfaceType t)
2048 {
2049 VGAInterfaceInfo *ti = &vga_interfaces[t];
2050
2051 assert(t < VGA_TYPE_MAX);
2052 return !ti->class_names[0] ||
2053 object_class_by_name(ti->class_names[0]) ||
2054 object_class_by_name(ti->class_names[1]);
2055 }
2056
2057 static void select_vgahw(const char *p)
2058 {
2059 const char *opts;
2060 int t;
2061
2062 assert(vga_interface_type == VGA_NONE);
2063 for (t = 0; t < VGA_TYPE_MAX; t++) {
2064 VGAInterfaceInfo *ti = &vga_interfaces[t];
2065 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2066 if (!vga_interface_available(t)) {
2067 error_report("%s not available", ti->name);
2068 exit(1);
2069 }
2070 vga_interface_type = t;
2071 break;
2072 }
2073 }
2074 if (t == VGA_TYPE_MAX) {
2075 invalid_vga:
2076 error_report("unknown vga type: %s", p);
2077 exit(1);
2078 }
2079 while (*opts) {
2080 const char *nextopt;
2081
2082 if (strstart(opts, ",retrace=", &nextopt)) {
2083 opts = nextopt;
2084 if (strstart(opts, "dumb", &nextopt))
2085 vga_retrace_method = VGA_RETRACE_DUMB;
2086 else if (strstart(opts, "precise", &nextopt))
2087 vga_retrace_method = VGA_RETRACE_PRECISE;
2088 else goto invalid_vga;
2089 } else goto invalid_vga;
2090 opts = nextopt;
2091 }
2092 }
2093
2094 static void parse_display(const char *p)
2095 {
2096 const char *opts;
2097
2098 if (strstart(p, "sdl", &opts)) {
2099 dpy.type = DISPLAY_TYPE_SDL;
2100 while (*opts) {
2101 const char *nextopt;
2102
2103 if (strstart(opts, ",frame=", &nextopt)) {
2104 g_printerr("The frame= sdl option is deprecated, and will be\n"
2105 "removed in a future release.\n");
2106 opts = nextopt;
2107 if (strstart(opts, "on", &nextopt)) {
2108 no_frame = 0;
2109 } else if (strstart(opts, "off", &nextopt)) {
2110 no_frame = 1;
2111 } else {
2112 goto invalid_sdl_args;
2113 }
2114 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2115 opts = nextopt;
2116 if (strstart(opts, "on", &nextopt)) {
2117 alt_grab = 1;
2118 } else if (strstart(opts, "off", &nextopt)) {
2119 alt_grab = 0;
2120 } else {
2121 goto invalid_sdl_args;
2122 }
2123 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2124 opts = nextopt;
2125 if (strstart(opts, "on", &nextopt)) {
2126 ctrl_grab = 1;
2127 } else if (strstart(opts, "off", &nextopt)) {
2128 ctrl_grab = 0;
2129 } else {
2130 goto invalid_sdl_args;
2131 }
2132 } else if (strstart(opts, ",window_close=", &nextopt)) {
2133 opts = nextopt;
2134 dpy.has_window_close = true;
2135 if (strstart(opts, "on", &nextopt)) {
2136 dpy.window_close = true;
2137 } else if (strstart(opts, "off", &nextopt)) {
2138 dpy.window_close = false;
2139 } else {
2140 goto invalid_sdl_args;
2141 }
2142 } else if (strstart(opts, ",gl=", &nextopt)) {
2143 opts = nextopt;
2144 dpy.has_gl = true;
2145 if (strstart(opts, "on", &nextopt)) {
2146 dpy.gl = DISPLAYGL_MODE_ON;
2147 } else if (strstart(opts, "core", &nextopt)) {
2148 dpy.gl = DISPLAYGL_MODE_CORE;
2149 } else if (strstart(opts, "es", &nextopt)) {
2150 dpy.gl = DISPLAYGL_MODE_ES;
2151 } else if (strstart(opts, "off", &nextopt)) {
2152 dpy.gl = DISPLAYGL_MODE_OFF;
2153 } else {
2154 goto invalid_sdl_args;
2155 }
2156 } else {
2157 invalid_sdl_args:
2158 error_report("invalid SDL option string");
2159 exit(1);
2160 }
2161 opts = nextopt;
2162 }
2163 } else if (strstart(p, "vnc", &opts)) {
2164 if (*opts == '=') {
2165 vnc_parse(opts + 1, &error_fatal);
2166 } else {
2167 error_report("VNC requires a display argument vnc=<display>");
2168 exit(1);
2169 }
2170 } else if (strstart(p, "egl-headless", &opts)) {
2171 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2172 } else if (strstart(p, "curses", &opts)) {
2173 dpy.type = DISPLAY_TYPE_CURSES;
2174 } else if (strstart(p, "gtk", &opts)) {
2175 dpy.type = DISPLAY_TYPE_GTK;
2176 while (*opts) {
2177 const char *nextopt;
2178
2179 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2180 opts = nextopt;
2181 dpy.u.gtk.has_grab_on_hover = true;
2182 if (strstart(opts, "on", &nextopt)) {
2183 dpy.u.gtk.grab_on_hover = true;
2184 } else if (strstart(opts, "off", &nextopt)) {
2185 dpy.u.gtk.grab_on_hover = false;
2186 } else {
2187 goto invalid_gtk_args;
2188 }
2189 } else if (strstart(opts, ",gl=", &nextopt)) {
2190 opts = nextopt;
2191 dpy.has_gl = true;
2192 if (strstart(opts, "on", &nextopt)) {
2193 dpy.gl = DISPLAYGL_MODE_ON;
2194 } else if (strstart(opts, "off", &nextopt)) {
2195 dpy.gl = DISPLAYGL_MODE_OFF;
2196 } else {
2197 goto invalid_gtk_args;
2198 }
2199 } else {
2200 invalid_gtk_args:
2201 error_report("invalid GTK option string");
2202 exit(1);
2203 }
2204 opts = nextopt;
2205 }
2206 } else if (strstart(p, "none", &opts)) {
2207 dpy.type = DISPLAY_TYPE_NONE;
2208 } else {
2209 error_report("unknown display type");
2210 exit(1);
2211 }
2212 }
2213
2214 static int balloon_parse(const char *arg)
2215 {
2216 QemuOpts *opts;
2217
2218 warn_report("This option is deprecated. "
2219 "Use '--device virtio-balloon' to enable the balloon device.");
2220
2221 if (strcmp(arg, "none") == 0) {
2222 return 0;
2223 }
2224
2225 if (!strncmp(arg, "virtio", 6)) {
2226 if (arg[6] == ',') {
2227 /* have params -> parse them */
2228 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2229 false);
2230 if (!opts)
2231 return -1;
2232 } else {
2233 /* create empty opts */
2234 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2235 &error_abort);
2236 }
2237 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2238 return 0;
2239 }
2240
2241 return -1;
2242 }
2243
2244 char *qemu_find_file(int type, const char *name)
2245 {
2246 int i;
2247 const char *subdir;
2248 char *buf;
2249
2250 /* Try the name as a straight path first */
2251 if (access(name, R_OK) == 0) {
2252 trace_load_file(name, name);
2253 return g_strdup(name);
2254 }
2255
2256 switch (type) {
2257 case QEMU_FILE_TYPE_BIOS:
2258 subdir = "";
2259 break;
2260 case QEMU_FILE_TYPE_KEYMAP:
2261 subdir = "keymaps/";
2262 break;
2263 default:
2264 abort();
2265 }
2266
2267 for (i = 0; i < data_dir_idx; i++) {
2268 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2269 if (access(buf, R_OK) == 0) {
2270 trace_load_file(name, buf);
2271 return buf;
2272 }
2273 g_free(buf);
2274 }
2275 return NULL;
2276 }
2277
2278 static void qemu_add_data_dir(const char *path)
2279 {
2280 int i;
2281
2282 if (path == NULL) {
2283 return;
2284 }
2285 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2286 return;
2287 }
2288 for (i = 0; i < data_dir_idx; i++) {
2289 if (strcmp(data_dir[i], path) == 0) {
2290 return; /* duplicate */
2291 }
2292 }
2293 data_dir[data_dir_idx++] = g_strdup(path);
2294 }
2295
2296 static inline bool nonempty_str(const char *str)
2297 {
2298 return str && *str;
2299 }
2300
2301 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2302 {
2303 gchar *buf;
2304 size_t size;
2305 const char *name, *file, *str;
2306 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2307
2308 if (fw_cfg == NULL) {
2309 error_report("fw_cfg device not available");
2310 return -1;
2311 }
2312 name = qemu_opt_get(opts, "name");
2313 file = qemu_opt_get(opts, "file");
2314 str = qemu_opt_get(opts, "string");
2315
2316 /* we need name and either a file or the content string */
2317 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2318 error_report("invalid argument(s)");
2319 return -1;
2320 }
2321 if (nonempty_str(file) && nonempty_str(str)) {
2322 error_report("file and string are mutually exclusive");
2323 return -1;
2324 }
2325 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2326 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2327 return -1;
2328 }
2329 if (strncmp(name, "opt/", 4) != 0) {
2330 warn_report("externally provided fw_cfg item names "
2331 "should be prefixed with \"opt/\"");
2332 }
2333 if (nonempty_str(str)) {
2334 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2335 buf = g_memdup(str, size);
2336 } else {
2337 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2338 error_report("can't load %s", file);
2339 return -1;
2340 }
2341 }
2342 /* For legacy, keep user files in a specific global order. */
2343 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2344 fw_cfg_add_file(fw_cfg, name, buf, size);
2345 fw_cfg_reset_order_override(fw_cfg);
2346 return 0;
2347 }
2348
2349 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2350 {
2351 return qdev_device_help(opts);
2352 }
2353
2354 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2355 {
2356 Error *err = NULL;
2357 DeviceState *dev;
2358
2359 dev = qdev_device_add(opts, &err);
2360 if (!dev) {
2361 error_report_err(err);
2362 return -1;
2363 }
2364 object_unref(OBJECT(dev));
2365 return 0;
2366 }
2367
2368 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2369 {
2370 Error *local_err = NULL;
2371
2372 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2373 if (local_err) {
2374 error_report_err(local_err);
2375 return -1;
2376 }
2377 exit(0);
2378 }
2379 return 0;
2380 }
2381
2382 #ifdef CONFIG_VIRTFS
2383 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2384 {
2385 return qemu_fsdev_add(opts);
2386 }
2387 #endif
2388
2389 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2390 {
2391 Chardev *chr;
2392 const char *chardev;
2393 const char *mode;
2394 int flags;
2395
2396 mode = qemu_opt_get(opts, "mode");
2397 if (mode == NULL) {
2398 mode = "readline";
2399 }
2400 if (strcmp(mode, "readline") == 0) {
2401 flags = MONITOR_USE_READLINE;
2402 } else if (strcmp(mode, "control") == 0) {
2403 flags = MONITOR_USE_CONTROL;
2404 } else {
2405 error_report("unknown monitor mode \"%s\"", mode);
2406 exit(1);
2407 }
2408
2409 if (qemu_opt_get_bool(opts, "pretty", 0))
2410 flags |= MONITOR_USE_PRETTY;
2411
2412 /* OOB is off by default */
2413 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2414 flags |= MONITOR_USE_OOB;
2415 }
2416
2417 chardev = qemu_opt_get(opts, "chardev");
2418 chr = qemu_chr_find(chardev);
2419 if (chr == NULL) {
2420 error_report("chardev \"%s\" not found", chardev);
2421 exit(1);
2422 }
2423
2424 monitor_init(chr, flags);
2425 return 0;
2426 }
2427
2428 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2429 {
2430 static int monitor_device_index = 0;
2431 QemuOpts *opts;
2432 const char *p;
2433 char label[32];
2434
2435 if (strstart(optarg, "chardev:", &p)) {
2436 snprintf(label, sizeof(label), "%s", p);
2437 } else {
2438 snprintf(label, sizeof(label), "compat_monitor%d",
2439 monitor_device_index);
2440 opts = qemu_chr_parse_compat(label, optarg);
2441 if (!opts) {
2442 error_report("parse error: %s", optarg);
2443 exit(1);
2444 }
2445 }
2446
2447 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2448 qemu_opt_set(opts, "mode", mode, &error_abort);
2449 qemu_opt_set(opts, "chardev", label, &error_abort);
2450 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2451 monitor_device_index++;
2452 }
2453
2454 struct device_config {
2455 enum {
2456 DEV_USB, /* -usbdevice */
2457 DEV_BT, /* -bt */
2458 DEV_SERIAL, /* -serial */
2459 DEV_PARALLEL, /* -parallel */
2460 DEV_VIRTCON, /* -virtioconsole */
2461 DEV_DEBUGCON, /* -debugcon */
2462 DEV_GDB, /* -gdb, -s */
2463 DEV_SCLP, /* s390 sclp */
2464 } type;
2465 const char *cmdline;
2466 Location loc;
2467 QTAILQ_ENTRY(device_config) next;
2468 };
2469
2470 static QTAILQ_HEAD(, device_config) device_configs =
2471 QTAILQ_HEAD_INITIALIZER(device_configs);
2472
2473 static void add_device_config(int type, const char *cmdline)
2474 {
2475 struct device_config *conf;
2476
2477 conf = g_malloc0(sizeof(*conf));
2478 conf->type = type;
2479 conf->cmdline = cmdline;
2480 loc_save(&conf->loc);
2481 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2482 }
2483
2484 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2485 {
2486 struct device_config *conf;
2487 int rc;
2488
2489 QTAILQ_FOREACH(conf, &device_configs, next) {
2490 if (conf->type != type)
2491 continue;
2492 loc_push_restore(&conf->loc);
2493 rc = func(conf->cmdline);
2494 loc_pop(&conf->loc);
2495 if (rc) {
2496 return rc;
2497 }
2498 }
2499 return 0;
2500 }
2501
2502 static int serial_parse(const char *devname)
2503 {
2504 int index = num_serial_hds;
2505 char label[32];
2506
2507 if (strcmp(devname, "none") == 0)
2508 return 0;
2509 snprintf(label, sizeof(label), "serial%d", index);
2510 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2511
2512 serial_hds[index] = qemu_chr_new(label, devname);
2513 if (!serial_hds[index]) {
2514 error_report("could not connect serial device"
2515 " to character backend '%s'", devname);
2516 return -1;
2517 }
2518 num_serial_hds++;
2519 return 0;
2520 }
2521
2522 Chardev *serial_hd(int i)
2523 {
2524 assert(i >= 0);
2525 if (i < num_serial_hds) {
2526 return serial_hds[i];
2527 }
2528 return NULL;
2529 }
2530
2531 int serial_max_hds(void)
2532 {
2533 return num_serial_hds;
2534 }
2535
2536 static int parallel_parse(const char *devname)
2537 {
2538 static int index = 0;
2539 char label[32];
2540
2541 if (strcmp(devname, "none") == 0)
2542 return 0;
2543 if (index == MAX_PARALLEL_PORTS) {
2544 error_report("too many parallel ports");
2545 exit(1);
2546 }
2547 snprintf(label, sizeof(label), "parallel%d", index);
2548 parallel_hds[index] = qemu_chr_new(label, devname);
2549 if (!parallel_hds[index]) {
2550 error_report("could not connect parallel device"
2551 " to character backend '%s'", devname);
2552 return -1;
2553 }
2554 index++;
2555 return 0;
2556 }
2557
2558 static int virtcon_parse(const char *devname)
2559 {
2560 QemuOptsList *device = qemu_find_opts("device");
2561 static int index = 0;
2562 char label[32];
2563 QemuOpts *bus_opts, *dev_opts;
2564
2565 if (strcmp(devname, "none") == 0)
2566 return 0;
2567 if (index == MAX_VIRTIO_CONSOLES) {
2568 error_report("too many virtio consoles");
2569 exit(1);
2570 }
2571
2572 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2573 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2574
2575 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2576 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2577
2578 snprintf(label, sizeof(label), "virtcon%d", index);
2579 virtcon_hds[index] = qemu_chr_new(label, devname);
2580 if (!virtcon_hds[index]) {
2581 error_report("could not connect virtio console"
2582 " to character backend '%s'", devname);
2583 return -1;
2584 }
2585 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2586
2587 index++;
2588 return 0;
2589 }
2590
2591 static int sclp_parse(const char *devname)
2592 {
2593 QemuOptsList *device = qemu_find_opts("device");
2594 static int index = 0;
2595 char label[32];
2596 QemuOpts *dev_opts;
2597
2598 if (strcmp(devname, "none") == 0) {
2599 return 0;
2600 }
2601 if (index == MAX_SCLP_CONSOLES) {
2602 error_report("too many sclp consoles");
2603 exit(1);
2604 }
2605
2606 assert(arch_type == QEMU_ARCH_S390X);
2607
2608 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2609 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2610
2611 snprintf(label, sizeof(label), "sclpcon%d", index);
2612 sclp_hds[index] = qemu_chr_new(label, devname);
2613 if (!sclp_hds[index]) {
2614 error_report("could not connect sclp console"
2615 " to character backend '%s'", devname);
2616 return -1;
2617 }
2618 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2619
2620 index++;
2621 return 0;
2622 }
2623
2624 static int debugcon_parse(const char *devname)
2625 {
2626 QemuOpts *opts;
2627
2628 if (!qemu_chr_new("debugcon", devname)) {
2629 exit(1);
2630 }
2631 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2632 if (!opts) {
2633 error_report("already have a debugcon device");
2634 exit(1);
2635 }
2636 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2637 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2638 return 0;
2639 }
2640
2641 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2642 {
2643 const MachineClass *mc1 = a, *mc2 = b;
2644 int res;
2645
2646 if (mc1->family == NULL) {
2647 if (mc2->family == NULL) {
2648 /* Compare standalone machine types against each other; they sort
2649 * in increasing order.
2650 */
2651 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2652 object_class_get_name(OBJECT_CLASS(mc2)));
2653 }
2654
2655 /* Standalone machine types sort after families. */
2656 return 1;
2657 }
2658
2659 if (mc2->family == NULL) {
2660 /* Families sort before standalone machine types. */
2661 return -1;
2662 }
2663
2664 /* Families sort between each other alphabetically increasingly. */
2665 res = strcmp(mc1->family, mc2->family);
2666 if (res != 0) {
2667 return res;
2668 }
2669
2670 /* Within the same family, machine types sort in decreasing order. */
2671 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2672 object_class_get_name(OBJECT_CLASS(mc1)));
2673 }
2674
2675 static MachineClass *machine_parse(const char *name)
2676 {
2677 MachineClass *mc = NULL;
2678 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2679
2680 if (name) {
2681 mc = find_machine(name);
2682 }
2683 if (mc) {
2684 g_slist_free(machines);
2685 return mc;
2686 }
2687 if (name && !is_help_option(name)) {
2688 error_report("unsupported machine type");
2689 error_printf("Use -machine help to list supported machines\n");
2690 } else {
2691 printf("Supported machines are:\n");
2692 machines = g_slist_sort(machines, machine_class_cmp);
2693 for (el = machines; el; el = el->next) {
2694 MachineClass *mc = el->data;
2695 if (mc->alias) {
2696 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2697 }
2698 printf("%-20s %s%s\n", mc->name, mc->desc,
2699 mc->is_default ? " (default)" : "");
2700 }
2701 }
2702
2703 g_slist_free(machines);
2704 exit(!name || !is_help_option(name));
2705 }
2706
2707 void qemu_add_exit_notifier(Notifier *notify)
2708 {
2709 notifier_list_add(&exit_notifiers, notify);
2710 }
2711
2712 void qemu_remove_exit_notifier(Notifier *notify)
2713 {
2714 notifier_remove(notify);
2715 }
2716
2717 static void qemu_run_exit_notifiers(void)
2718 {
2719 notifier_list_notify(&exit_notifiers, NULL);
2720 }
2721
2722 bool machine_init_done;
2723
2724 void qemu_add_machine_init_done_notifier(Notifier *notify)
2725 {
2726 notifier_list_add(&machine_init_done_notifiers, notify);
2727 if (machine_init_done) {
2728 notify->notify(notify, NULL);
2729 }
2730 }
2731
2732 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2733 {
2734 notifier_remove(notify);
2735 }
2736
2737 static void qemu_run_machine_init_done_notifiers(void)
2738 {
2739 machine_init_done = true;
2740 notifier_list_notify(&machine_init_done_notifiers, NULL);
2741 }
2742
2743 static const QEMUOption *lookup_opt(int argc, char **argv,
2744 const char **poptarg, int *poptind)
2745 {
2746 const QEMUOption *popt;
2747 int optind = *poptind;
2748 char *r = argv[optind];
2749 const char *optarg;
2750
2751 loc_set_cmdline(argv, optind, 1);
2752 optind++;
2753 /* Treat --foo the same as -foo. */
2754 if (r[1] == '-')
2755 r++;
2756 popt = qemu_options;
2757 for(;;) {
2758 if (!popt->name) {
2759 error_report("invalid option");
2760 exit(1);
2761 }
2762 if (!strcmp(popt->name, r + 1))
2763 break;
2764 popt++;
2765 }
2766 if (popt->flags & HAS_ARG) {
2767 if (optind >= argc) {
2768 error_report("requires an argument");
2769 exit(1);
2770 }
2771 optarg = argv[optind++];
2772 loc_set_cmdline(argv, optind - 2, 2);
2773 } else {
2774 optarg = NULL;
2775 }
2776
2777 *poptarg = optarg;
2778 *poptind = optind;
2779
2780 return popt;
2781 }
2782
2783 static MachineClass *select_machine(void)
2784 {
2785 MachineClass *machine_class = find_default_machine();
2786 const char *optarg;
2787 QemuOpts *opts;
2788 Location loc;
2789
2790 loc_push_none(&loc);
2791
2792 opts = qemu_get_machine_opts();
2793 qemu_opts_loc_restore(opts);
2794
2795 optarg = qemu_opt_get(opts, "type");
2796 if (optarg) {
2797 machine_class = machine_parse(optarg);
2798 }
2799
2800 if (!machine_class) {
2801 error_report("No machine specified, and there is no default");
2802 error_printf("Use -machine help to list supported machines\n");
2803 exit(1);
2804 }
2805
2806 loc_pop(&loc);
2807 return machine_class;
2808 }
2809
2810 static int machine_set_property(void *opaque,
2811 const char *name, const char *value,
2812 Error **errp)
2813 {
2814 Object *obj = OBJECT(opaque);
2815 Error *local_err = NULL;
2816 char *p, *qom_name;
2817
2818 if (strcmp(name, "type") == 0) {
2819 return 0;
2820 }
2821
2822 qom_name = g_strdup(name);
2823 for (p = qom_name; *p; p++) {
2824 if (*p == '_') {
2825 *p = '-';
2826 }
2827 }
2828
2829 object_property_parse(obj, value, qom_name, &local_err);
2830 g_free(qom_name);
2831
2832 if (local_err) {
2833 error_report_err(local_err);
2834 return -1;
2835 }
2836
2837 return 0;
2838 }
2839
2840
2841 /*
2842 * Initial object creation happens before all other
2843 * QEMU data types are created. The majority of objects
2844 * can be created at this point. The rng-egd object
2845 * cannot be created here, as it depends on the chardev
2846 * already existing.
2847 */
2848 static bool object_create_initial(const char *type)
2849 {
2850 if (g_str_equal(type, "rng-egd") ||
2851 g_str_has_prefix(type, "pr-manager-")) {
2852 return false;
2853 }
2854
2855 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2856 if (g_str_equal(type, "cryptodev-vhost-user")) {
2857 return false;
2858 }
2859 #endif
2860
2861 /*
2862 * return false for concrete netfilters since
2863 * they depend on netdevs already existing
2864 */
2865 if (g_str_equal(type, "filter-buffer") ||
2866 g_str_equal(type, "filter-dump") ||
2867 g_str_equal(type, "filter-mirror") ||
2868 g_str_equal(type, "filter-redirector") ||
2869 g_str_equal(type, "colo-compare") ||
2870 g_str_equal(type, "filter-rewriter") ||
2871 g_str_equal(type, "filter-replay")) {
2872 return false;
2873 }
2874
2875 /* Memory allocation by backends needs to be done
2876 * after configure_accelerator() (due to the tcg_enabled()
2877 * checks at memory_region_init_*()).
2878 *
2879 * Also, allocation of large amounts of memory may delay
2880 * chardev initialization for too long, and trigger timeouts
2881 * on software that waits for a monitor socket to be created
2882 * (e.g. libvirt).
2883 */
2884 if (g_str_has_prefix(type, "memory-backend-")) {
2885 return false;
2886 }
2887
2888 return true;
2889 }
2890
2891
2892 /*
2893 * The remainder of object creation happens after the
2894 * creation of chardev, fsdev, net clients and device data types.
2895 */
2896 static bool object_create_delayed(const char *type)
2897 {
2898 return !object_create_initial(type);
2899 }
2900
2901
2902 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2903 MachineClass *mc)
2904 {
2905 uint64_t sz;
2906 const char *mem_str;
2907 const char *maxmem_str, *slots_str;
2908 const ram_addr_t default_ram_size = mc->default_ram_size;
2909 QemuOpts *opts = qemu_find_opts_singleton("memory");
2910 Location loc;
2911
2912 loc_push_none(&loc);
2913 qemu_opts_loc_restore(opts);
2914
2915 sz = 0;
2916 mem_str = qemu_opt_get(opts, "size");
2917 if (mem_str) {
2918 if (!*mem_str) {
2919 error_report("missing 'size' option value");
2920 exit(EXIT_FAILURE);
2921 }
2922
2923 sz = qemu_opt_get_size(opts, "size", ram_size);
2924
2925 /* Fix up legacy suffix-less format */
2926 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2927 uint64_t overflow_check = sz;
2928
2929 sz <<= 20;
2930 if ((sz >> 20) != overflow_check) {
2931 error_report("too large 'size' option value");
2932 exit(EXIT_FAILURE);
2933 }
2934 }
2935 }
2936
2937 /* backward compatibility behaviour for case "-m 0" */
2938 if (sz == 0) {
2939 sz = default_ram_size;
2940 }
2941
2942 sz = QEMU_ALIGN_UP(sz, 8192);
2943 ram_size = sz;
2944 if (ram_size != sz) {
2945 error_report("ram size too large");
2946 exit(EXIT_FAILURE);
2947 }
2948
2949 /* store value for the future use */
2950 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2951 *maxram_size = ram_size;
2952
2953 maxmem_str = qemu_opt_get(opts, "maxmem");
2954 slots_str = qemu_opt_get(opts, "slots");
2955 if (maxmem_str && slots_str) {
2956 uint64_t slots;
2957
2958 sz = qemu_opt_get_size(opts, "maxmem", 0);
2959 slots = qemu_opt_get_number(opts, "slots", 0);
2960 if (sz < ram_size) {
2961 error_report("invalid value of -m option maxmem: "
2962 "maximum memory size (0x%" PRIx64 ") must be at least "
2963 "the initial memory size (0x" RAM_ADDR_FMT ")",
2964 sz, ram_size);
2965 exit(EXIT_FAILURE);
2966 } else if (sz > ram_size) {
2967 if (!slots) {
2968 error_report("invalid value of -m option: maxmem was "
2969 "specified, but no hotplug slots were specified");
2970 exit(EXIT_FAILURE);
2971 }
2972 } else if (slots) {
2973 error_report("invalid value of -m option maxmem: "
2974 "memory slots were specified but maximum memory size "
2975 "(0x%" PRIx64 ") is equal to the initial memory size "
2976 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2977 exit(EXIT_FAILURE);
2978 }
2979
2980 *maxram_size = sz;
2981 *ram_slots = slots;
2982 } else if ((!maxmem_str && slots_str) ||
2983 (maxmem_str && !slots_str)) {
2984 error_report("invalid -m option value: missing "
2985 "'%s' option", slots_str ? "maxmem" : "slots");
2986 exit(EXIT_FAILURE);
2987 }
2988
2989 loc_pop(&loc);
2990 }
2991
2992 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2993 {
2994 GlobalProperty *g;
2995
2996 g = g_malloc0(sizeof(*g));
2997 g->driver = qemu_opt_get(opts, "driver");
2998 g->property = qemu_opt_get(opts, "property");
2999 g->value = qemu_opt_get(opts, "value");
3000 g->user_provided = true;
3001 g->errp = &error_fatal;
3002 qdev_prop_register_global(g);
3003 return 0;
3004 }
3005
3006 static int qemu_read_default_config_file(void)
3007 {
3008 int ret;
3009
3010 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3011 if (ret < 0 && ret != -ENOENT) {
3012 return ret;
3013 }
3014
3015 return 0;
3016 }
3017
3018 static void user_register_global_props(void)
3019 {
3020 qemu_opts_foreach(qemu_find_opts("global"),
3021 global_init_func, NULL, NULL);
3022 }
3023
3024 /*
3025 * Note: we should see that these properties are actually having a
3026 * priority: accel < machine < user. This means e.g. when user
3027 * specifies something in "-global", it'll always be used with highest
3028 * priority than either machine/accelerator compat properties.
3029 */
3030 static void register_global_properties(MachineState *ms)
3031 {
3032 accel_register_compat_props(ms->accelerator);
3033 machine_register_compat_props(ms);
3034 user_register_global_props();
3035 }
3036
3037 int main(int argc, char **argv, char **envp)
3038 {
3039 int i;
3040 int snapshot, linux_boot;
3041 const char *initrd_filename;
3042 const char *kernel_filename, *kernel_cmdline;
3043 const char *boot_order = NULL;
3044 const char *boot_once = NULL;
3045 DisplayState *ds;
3046 QemuOpts *opts, *machine_opts;
3047 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3048 QemuOptsList *olist;
3049 int optind;
3050 const char *optarg;
3051 const char *loadvm = NULL;
3052 MachineClass *machine_class;
3053 const char *cpu_model;
3054 const char *vga_model = NULL;
3055 const char *qtest_chrdev = NULL;
3056 const char *qtest_log = NULL;
3057 const char *pid_file = NULL;
3058 const char *incoming = NULL;
3059 bool userconfig = true;
3060 bool nographic = false;
3061 int display_remote = 0;
3062 const char *log_mask = NULL;
3063 const char *log_file = NULL;
3064 char *trace_file = NULL;
3065 ram_addr_t maxram_size;
3066 uint64_t ram_slots = 0;
3067 FILE *vmstate_dump_file = NULL;
3068 Error *main_loop_err = NULL;
3069 Error *err = NULL;
3070 bool list_data_dirs = false;
3071 char *dir, **dirs;
3072 typedef struct BlockdevOptions_queue {
3073 BlockdevOptions *bdo;
3074 Location loc;
3075 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3076 } BlockdevOptions_queue;
3077 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3078 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3079
3080 module_call_init(MODULE_INIT_TRACE);
3081
3082 qemu_init_cpu_list();
3083 qemu_init_cpu_loop();
3084
3085 qemu_mutex_lock_iothread();
3086
3087 atexit(qemu_run_exit_notifiers);
3088 error_set_progname(argv[0]);
3089 qemu_init_exec_dir(argv[0]);
3090
3091 module_call_init(MODULE_INIT_QOM);
3092
3093 qemu_add_opts(&qemu_drive_opts);
3094 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3095 qemu_add_drive_opts(&qemu_common_drive_opts);
3096 qemu_add_drive_opts(&qemu_drive_opts);
3097 qemu_add_drive_opts(&bdrv_runtime_opts);
3098 qemu_add_opts(&qemu_chardev_opts);
3099 qemu_add_opts(&qemu_device_opts);
3100 qemu_add_opts(&qemu_netdev_opts);
3101 qemu_add_opts(&qemu_nic_opts);
3102 qemu_add_opts(&qemu_net_opts);
3103 qemu_add_opts(&qemu_rtc_opts);
3104 qemu_add_opts(&qemu_global_opts);
3105 qemu_add_opts(&qemu_mon_opts);
3106 qemu_add_opts(&qemu_trace_opts);
3107 qemu_add_opts(&qemu_option_rom_opts);
3108 qemu_add_opts(&qemu_machine_opts);
3109 qemu_add_opts(&qemu_accel_opts);
3110 qemu_add_opts(&qemu_mem_opts);
3111 qemu_add_opts(&qemu_smp_opts);
3112 qemu_add_opts(&qemu_boot_opts);
3113 qemu_add_opts(&qemu_sandbox_opts);
3114 qemu_add_opts(&qemu_add_fd_opts);
3115 qemu_add_opts(&qemu_object_opts);
3116 qemu_add_opts(&qemu_tpmdev_opts);
3117 qemu_add_opts(&qemu_realtime_opts);
3118 qemu_add_opts(&qemu_msg_opts);
3119 qemu_add_opts(&qemu_name_opts);
3120 qemu_add_opts(&qemu_numa_opts);
3121 qemu_add_opts(&qemu_icount_opts);
3122 qemu_add_opts(&qemu_semihosting_config_opts);
3123 qemu_add_opts(&qemu_fw_cfg_opts);
3124 module_call_init(MODULE_INIT_OPTS);
3125
3126 runstate_init();
3127 postcopy_infrastructure_init();
3128
3129 if (qcrypto_init(&err) < 0) {
3130 error_reportf_err(err, "cannot initialize crypto: ");
3131 exit(1);
3132 }
3133 rtc_clock = QEMU_CLOCK_HOST;
3134
3135 QLIST_INIT (&vm_change_state_head);
3136 os_setup_early_signal_handling();
3137
3138 cpu_model = NULL;
3139 snapshot = 0;
3140
3141 nb_nics = 0;
3142
3143 bdrv_init_with_whitelist();
3144
3145 autostart = 1;
3146
3147 /* first pass of option parsing */
3148 optind = 1;
3149 while (optind < argc) {
3150 if (argv[optind][0] != '-') {
3151 /* disk image */
3152 optind++;
3153 } else {
3154 const QEMUOption *popt;
3155
3156 popt = lookup_opt(argc, argv, &optarg, &optind);
3157 switch (popt->index) {
3158 case QEMU_OPTION_nodefconfig:
3159 case QEMU_OPTION_nouserconfig:
3160 userconfig = false;
3161 break;
3162 }
3163 }
3164 }
3165
3166 if (userconfig) {
3167 if (qemu_read_default_config_file() < 0) {
3168 exit(1);
3169 }
3170 }
3171
3172 /* second pass of option parsing */
3173 optind = 1;
3174 for(;;) {
3175 if (optind >= argc)
3176 break;
3177 if (argv[optind][0] != '-') {
3178 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3179 } else {
3180 const QEMUOption *popt;
3181
3182 popt = lookup_opt(argc, argv, &optarg, &optind);
3183 if (!(popt->arch_mask & arch_type)) {
3184 error_report("Option not supported for this target");
3185 exit(1);
3186 }
3187 switch(popt->index) {
3188 case QEMU_OPTION_no_kvm_irqchip: {
3189 olist = qemu_find_opts("machine");
3190 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3191 break;
3192 }
3193 case QEMU_OPTION_cpu:
3194 /* hw initialization will check this */
3195 cpu_model = optarg;
3196 break;
3197 case QEMU_OPTION_hda:
3198 case QEMU_OPTION_hdb:
3199 case QEMU_OPTION_hdc:
3200 case QEMU_OPTION_hdd:
3201 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3202 HD_OPTS);
3203 break;
3204 case QEMU_OPTION_blockdev:
3205 {
3206 Visitor *v;
3207 BlockdevOptions_queue *bdo;
3208
3209 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3210 if (!v) {
3211 error_report_err(err);
3212 exit(1);
3213 }
3214
3215 bdo = g_new(BlockdevOptions_queue, 1);
3216 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3217 &error_fatal);
3218 visit_free(v);
3219 loc_save(&bdo->loc);
3220 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3221 break;
3222 }
3223 case QEMU_OPTION_drive:
3224 if (drive_def(optarg) == NULL) {
3225 exit(1);
3226 }
3227 break;
3228 case QEMU_OPTION_set:
3229 if (qemu_set_option(optarg) != 0)
3230 exit(1);
3231 break;
3232 case QEMU_OPTION_global:
3233 if (qemu_global_option(optarg) != 0)
3234 exit(1);
3235 break;
3236 case QEMU_OPTION_mtdblock:
3237 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3238 break;
3239 case QEMU_OPTION_sd:
3240 drive_add(IF_SD, -1, optarg, SD_OPTS);
3241 break;
3242 case QEMU_OPTION_pflash:
3243 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3244 break;
3245 case QEMU_OPTION_snapshot:
3246 snapshot = 1;
3247 break;
3248 case QEMU_OPTION_numa:
3249 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3250 optarg, true);
3251 if (!opts) {
3252 exit(1);
3253 }
3254 break;
3255 case QEMU_OPTION_display:
3256 parse_display(optarg);
3257 break;
3258 case QEMU_OPTION_nographic:
3259 olist = qemu_find_opts("machine");
3260 qemu_opts_parse_noisily(olist, "graphics=off", false);
3261 nographic = true;
3262 dpy.type = DISPLAY_TYPE_NONE;
3263 break;
3264 case QEMU_OPTION_curses:
3265 #ifdef CONFIG_CURSES
3266 dpy.type = DISPLAY_TYPE_CURSES;
3267 #else
3268 error_report("curses support is disabled");
3269 exit(1);
3270 #endif
3271 break;
3272 case QEMU_OPTION_portrait:
3273 graphic_rotate = 90;
3274 break;
3275 case QEMU_OPTION_rotate:
3276 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3277 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3278 graphic_rotate != 180 && graphic_rotate != 270) {
3279 error_report("only 90, 180, 270 deg rotation is available");
3280 exit(1);
3281 }
3282 break;
3283 case QEMU_OPTION_kernel:
3284 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3285 &error_abort);
3286 break;
3287 case QEMU_OPTION_initrd:
3288 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3289 &error_abort);
3290 break;
3291 case QEMU_OPTION_append:
3292 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3293 &error_abort);
3294 break;
3295 case QEMU_OPTION_dtb:
3296 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3297 &error_abort);
3298 break;
3299 case QEMU_OPTION_cdrom:
3300 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3301 break;
3302 case QEMU_OPTION_boot:
3303 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3304 optarg, true);
3305 if (!opts) {
3306 exit(1);
3307 }
3308 break;
3309 case QEMU_OPTION_fda:
3310 case QEMU_OPTION_fdb:
3311 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3312 optarg, FD_OPTS);
3313 break;
3314 case QEMU_OPTION_no_fd_bootchk:
3315 fd_bootchk = 0;
3316 break;
3317 case QEMU_OPTION_netdev:
3318 default_net = 0;
3319 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3320 exit(1);
3321 }
3322 break;
3323 case QEMU_OPTION_nic:
3324 default_net = 0;
3325 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3326 exit(1);
3327 }
3328 break;
3329 case QEMU_OPTION_net:
3330 default_net = 0;
3331 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3332 exit(1);
3333 }
3334 break;
3335 #ifdef CONFIG_LIBISCSI
3336 case QEMU_OPTION_iscsi:
3337 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3338 optarg, false);
3339 if (!opts) {
3340 exit(1);
3341 }
3342 break;
3343 #endif
3344 #ifdef CONFIG_SLIRP
3345 case QEMU_OPTION_tftp:
3346 error_report("The -tftp option is deprecated. "
3347 "Please use '-netdev user,tftp=...' instead.");
3348 legacy_tftp_prefix = optarg;
3349 break;
3350 case QEMU_OPTION_bootp:
3351 error_report("The -bootp option is deprecated. "
3352 "Please use '-netdev user,bootfile=...' instead.");
3353 legacy_bootp_filename = optarg;
3354 break;
3355 case QEMU_OPTION_redir:
3356 error_report("The -redir option is deprecated. "
3357 "Please use '-netdev user,hostfwd=...' instead.");
3358 if (net_slirp_redir(optarg) < 0)
3359 exit(1);
3360 break;
3361 #endif
3362 case QEMU_OPTION_bt:
3363 add_device_config(DEV_BT, optarg);
3364 break;
3365 case QEMU_OPTION_audio_help:
3366 AUD_help ();
3367 exit (0);
3368 break;
3369 case QEMU_OPTION_soundhw:
3370 select_soundhw (optarg);
3371 break;
3372 case QEMU_OPTION_h:
3373 help(0);
3374 break;
3375 case QEMU_OPTION_version:
3376 version();
3377 exit(0);
3378 break;
3379 case QEMU_OPTION_m:
3380 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3381 optarg, true);
3382 if (!opts) {
3383 exit(EXIT_FAILURE);
3384 }
3385 break;
3386 #ifdef CONFIG_TPM
3387 case QEMU_OPTION_tpmdev:
3388 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3389 exit(1);
3390 }
3391 break;
3392 #endif
3393 case QEMU_OPTION_mempath:
3394 mem_path = optarg;
3395 break;
3396 case QEMU_OPTION_mem_prealloc:
3397 mem_prealloc = 1;
3398 break;
3399 case QEMU_OPTION_d:
3400 log_mask = optarg;
3401 break;
3402 case QEMU_OPTION_D:
3403 log_file = optarg;
3404 break;
3405 case QEMU_OPTION_DFILTER:
3406 qemu_set_dfilter_ranges(optarg, &error_fatal);
3407 break;
3408 case QEMU_OPTION_s:
3409 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3410 break;
3411 case QEMU_OPTION_gdb:
3412 add_device_config(DEV_GDB, optarg);
3413 break;
3414 case QEMU_OPTION_L:
3415 if (is_help_option(optarg)) {
3416 list_data_dirs = true;
3417 } else {
3418 qemu_add_data_dir(optarg);
3419 }
3420 break;
3421 case QEMU_OPTION_bios:
3422 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3423 &error_abort);
3424 break;
3425 case QEMU_OPTION_singlestep:
3426 singlestep = 1;
3427 break;
3428 case QEMU_OPTION_S:
3429 autostart = 0;
3430 break;
3431 case QEMU_OPTION_k:
3432 keyboard_layout = optarg;
3433 break;
3434 case QEMU_OPTION_localtime:
3435 rtc_utc = 0;
3436 warn_report("This option is deprecated, "
3437 "use '-rtc base=localtime' instead.");
3438 break;
3439 case QEMU_OPTION_vga:
3440 vga_model = optarg;
3441 default_vga = 0;
3442 break;
3443 case QEMU_OPTION_g:
3444 {
3445 const char *p;
3446 int w, h, depth;
3447 p = optarg;
3448 w = strtol(p, (char **)&p, 10);
3449 if (w <= 0) {
3450 graphic_error:
3451 error_report("invalid resolution or depth");
3452 exit(1);
3453 }
3454 if (*p != 'x')
3455 goto graphic_error;
3456 p++;
3457 h = strtol(p, (char **)&p, 10);
3458 if (h <= 0)
3459 goto graphic_error;
3460 if (*p == 'x') {
3461 p++;
3462 depth = strtol(p, (char **)&p, 10);
3463 if (depth != 8 && depth != 15 && depth != 16 &&
3464 depth != 24 && depth != 32)
3465 goto graphic_error;
3466 } else if (*p == '\0') {
3467 depth = graphic_depth;
3468 } else {
3469 goto graphic_error;
3470 }
3471
3472 graphic_width = w;
3473 graphic_height = h;
3474 graphic_depth = depth;
3475 }
3476 break;
3477 case QEMU_OPTION_echr:
3478 {
3479 char *r;
3480 term_escape_char = strtol(optarg, &r, 0);
3481 if (r == optarg)
3482 printf("Bad argument to echr\n");
3483 break;
3484 }
3485 case QEMU_OPTION_monitor:
3486 default_monitor = 0;
3487 if (strncmp(optarg, "none", 4)) {
3488 monitor_parse(optarg, "readline", false);
3489 }
3490 break;
3491 case QEMU_OPTION_qmp:
3492 monitor_parse(optarg, "control", false);
3493 default_monitor = 0;
3494 break;
3495 case QEMU_OPTION_qmp_pretty:
3496 monitor_parse(optarg, "control", true);
3497 default_monitor = 0;
3498 break;
3499 case QEMU_OPTION_mon:
3500 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3501 true);
3502 if (!opts) {
3503 exit(1);
3504 }
3505 default_monitor = 0;
3506 break;
3507 case QEMU_OPTION_chardev:
3508 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3509 optarg, true);
3510 if (!opts) {
3511 exit(1);
3512 }
3513 break;
3514 case QEMU_OPTION_fsdev:
3515 olist = qemu_find_opts("fsdev");
3516 if (!olist) {
3517 error_report("fsdev support is disabled");
3518 exit(1);
3519 }
3520 opts = qemu_opts_parse_noisily(olist, optarg, true);
3521 if (!opts) {
3522 exit(1);
3523 }
3524 break;
3525 case QEMU_OPTION_virtfs: {
3526 QemuOpts *fsdev;
3527 QemuOpts *device;
3528 const char *writeout, *sock_fd, *socket, *path, *security_model;
3529
3530 olist = qemu_find_opts("virtfs");
3531 if (!olist) {
3532 error_report("virtfs support is disabled");
3533 exit(1);
3534 }
3535 opts = qemu_opts_parse_noisily(olist, optarg, true);
3536 if (!opts) {
3537 exit(1);
3538 }
3539
3540 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3541 qemu_opt_get(opts, "mount_tag") == NULL) {
3542 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3543 exit(1);
3544 }
3545 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3546 qemu_opts_id(opts) ?:
3547 qemu_opt_get(opts, "mount_tag"),
3548 1, NULL);
3549 if (!fsdev) {
3550 error_report("duplicate or invalid fsdev id: %s",
3551 qemu_opt_get(opts, "mount_tag"));
3552 exit(1);
3553 }
3554
3555 writeout = qemu_opt_get(opts, "writeout");
3556 if (writeout) {
3557 #ifdef CONFIG_SYNC_FILE_RANGE
3558 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3559 #else
3560 error_report("writeout=immediate not supported "
3561 "on this platform");
3562 exit(1);
3563 #endif
3564 }
3565 qemu_opt_set(fsdev, "fsdriver",
3566 qemu_opt_get(opts, "fsdriver"), &error_abort);
3567 path = qemu_opt_get(opts, "path");
3568 if (path) {
3569 qemu_opt_set(fsdev, "path", path, &error_abort);
3570 }
3571 security_model = qemu_opt_get(opts, "security_model");
3572 if (security_model) {
3573 qemu_opt_set(fsdev, "security_model", security_model,
3574 &error_abort);
3575 }
3576 socket = qemu_opt_get(opts, "socket");
3577 if (socket) {
3578 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3579 }
3580 sock_fd = qemu_opt_get(opts, "sock_fd");
3581 if (sock_fd) {
3582 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3583 }
3584
3585 qemu_opt_set_bool(fsdev, "readonly",
3586 qemu_opt_get_bool(opts, "readonly", 0),
3587 &error_abort);
3588 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3589 &error_abort);
3590 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3591 qemu_opt_set(device, "fsdev",
3592 qemu_opts_id(fsdev), &error_abort);
3593 qemu_opt_set(device, "mount_tag",
3594 qemu_opt_get(opts, "mount_tag"), &error_abort);
3595 break;
3596 }
3597 case QEMU_OPTION_virtfs_synth: {
3598 QemuOpts *fsdev;
3599 QemuOpts *device;
3600
3601 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3602 1, NULL);
3603 if (!fsdev) {
3604 error_report("duplicate option: %s", "virtfs_synth");
3605 exit(1);
3606 }
3607 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3608
3609 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3610 &error_abort);
3611 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3612 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3613 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3614 break;
3615 }
3616 case QEMU_OPTION_serial:
3617 add_device_config(DEV_SERIAL, optarg);
3618 default_serial = 0;
3619 if (strncmp(optarg, "mon:", 4) == 0) {
3620 default_monitor = 0;
3621 }
3622 break;
3623 case QEMU_OPTION_watchdog:
3624 if (watchdog) {
3625 error_report("only one watchdog option may be given");
3626 return 1;
3627 }
3628 watchdog = optarg;
3629 break;
3630 case QEMU_OPTION_watchdog_action:
3631 if (select_watchdog_action(optarg) == -1) {
3632 error_report("unknown -watchdog-action parameter");
3633 exit(1);
3634 }
3635 break;
3636 case QEMU_OPTION_virtiocon:
3637 add_device_config(DEV_VIRTCON, optarg);
3638 default_virtcon = 0;
3639 if (strncmp(optarg, "mon:", 4) == 0) {
3640 default_monitor = 0;
3641 }
3642 break;
3643 case QEMU_OPTION_parallel:
3644 add_device_config(DEV_PARALLEL, optarg);
3645 default_parallel = 0;
3646 if (strncmp(optarg, "mon:", 4) == 0) {
3647 default_monitor = 0;
3648 }
3649 break;
3650 case QEMU_OPTION_debugcon:
3651 add_device_config(DEV_DEBUGCON, optarg);
3652 break;
3653 case QEMU_OPTION_loadvm:
3654 loadvm = optarg;
3655 break;
3656 case QEMU_OPTION_full_screen:
3657 dpy.has_full_screen = true;
3658 dpy.full_screen = true;
3659 break;
3660 case QEMU_OPTION_no_frame:
3661 g_printerr("The -no-frame switch is deprecated, and will be\n"
3662 "removed in a future release.\n");
3663 no_frame = 1;
3664 break;
3665 case QEMU_OPTION_alt_grab:
3666 alt_grab = 1;
3667 break;
3668 case QEMU_OPTION_ctrl_grab:
3669 ctrl_grab = 1;
3670 break;
3671 case QEMU_OPTION_no_quit:
3672 dpy.has_window_close = true;
3673 dpy.window_close = false;
3674 break;
3675 case QEMU_OPTION_sdl:
3676 #ifdef CONFIG_SDL
3677 dpy.type = DISPLAY_TYPE_SDL;
3678 break;
3679 #else
3680 error_report("SDL support is disabled");
3681 exit(1);
3682 #endif
3683 case QEMU_OPTION_pidfile:
3684 pid_file = optarg;
3685 break;
3686 case QEMU_OPTION_win2k_hack:
3687 win2k_install_hack = 1;
3688 break;
3689 case QEMU_OPTION_rtc_td_hack: {
3690 static GlobalProperty slew_lost_ticks = {
3691 .driver = "mc146818rtc",
3692 .property = "lost_tick_policy",
3693 .value = "slew",
3694 };
3695
3696 qdev_prop_register_global(&slew_lost_ticks);
3697 warn_report("This option is deprecated, "
3698 "use '-rtc driftfix=slew' instead.");
3699 break;
3700 }
3701 case QEMU_OPTION_acpitable:
3702 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3703 optarg, true);
3704 if (!opts) {
3705 exit(1);
3706 }
3707 acpi_table_add(opts, &error_fatal);
3708 break;
3709 case QEMU_OPTION_smbios:
3710 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3711 optarg, false);
3712 if (!opts) {
3713 exit(1);
3714 }
3715 smbios_entry_add(opts, &error_fatal);
3716 break;
3717 case QEMU_OPTION_fwcfg:
3718 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3719 optarg, true);
3720 if (opts == NULL) {
3721 exit(1);
3722 }
3723 break;
3724 case QEMU_OPTION_enable_kvm:
3725 olist = qemu_find_opts("machine");
3726 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3727 break;
3728 case QEMU_OPTION_enable_hax:
3729 olist = qemu_find_opts("machine");
3730 qemu_opts_parse_noisily(olist, "accel=hax", false);
3731 break;
3732 case QEMU_OPTION_M:
3733 case QEMU_OPTION_machine:
3734 olist = qemu_find_opts("machine");
3735 opts = qemu_opts_parse_noisily(olist, optarg, true);
3736 if (!opts) {
3737 exit(1);
3738 }
3739 break;
3740 case QEMU_OPTION_no_kvm:
3741 olist = qemu_find_opts("machine");
3742 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3743 break;
3744 case QEMU_OPTION_no_kvm_pit_reinjection: {
3745 static GlobalProperty kvm_pit_lost_tick_policy = {
3746 .driver = "kvm-pit",
3747 .property = "lost_tick_policy",
3748 .value = "discard",
3749 };
3750
3751 warn_report("deprecated, replaced by "
3752 "-global kvm-pit.lost_tick_policy=discard");
3753 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3754 break;
3755 }
3756 case QEMU_OPTION_accel:
3757 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3758 optarg, true);
3759 optarg = qemu_opt_get(accel_opts, "accel");
3760 if (!optarg || is_help_option(optarg)) {
3761 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3762 exit(0);
3763 }
3764 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3765 false, &error_abort);
3766 qemu_opt_set(opts, "accel", optarg, &error_abort);
3767 break;
3768 case QEMU_OPTION_usb:
3769 olist = qemu_find_opts("machine");
3770 qemu_opts_parse_noisily(olist, "usb=on", false);
3771 break;
3772 case QEMU_OPTION_usbdevice:
3773 error_report("'-usbdevice' is deprecated, please use "
3774 "'-device usb-...' instead");
3775 olist = qemu_find_opts("machine");
3776 qemu_opts_parse_noisily(olist, "usb=on", false);
3777 add_device_config(DEV_USB, optarg);
3778 break;
3779 case QEMU_OPTION_device:
3780 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3781 optarg, true)) {
3782 exit(1);
3783 }
3784 break;
3785 case QEMU_OPTION_smp:
3786 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3787 optarg, true)) {
3788 exit(1);
3789 }
3790 break;
3791 case QEMU_OPTION_vnc:
3792 vnc_parse(optarg, &error_fatal);
3793 break;
3794 case QEMU_OPTION_no_acpi:
3795 acpi_enabled = 0;
3796 break;
3797 case QEMU_OPTION_no_hpet:
3798 no_hpet = 1;
3799 break;
3800 case QEMU_OPTION_balloon:
3801 if (balloon_parse(optarg) < 0) {
3802 error_report("unknown -balloon argument %s", optarg);
3803 exit(1);
3804 }
3805 break;
3806 case QEMU_OPTION_no_reboot:
3807 no_reboot = 1;
3808 break;
3809 case QEMU_OPTION_no_shutdown:
3810 no_shutdown = 1;
3811 break;
3812 case QEMU_OPTION_show_cursor:
3813 cursor_hide = 0;
3814 break;
3815 case QEMU_OPTION_uuid:
3816 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3817 error_report("failed to parse UUID string: wrong format");
3818 exit(1);
3819 }
3820 qemu_uuid_set = true;
3821 break;
3822 case QEMU_OPTION_option_rom:
3823 if (nb_option_roms >= MAX_OPTION_ROMS) {
3824 error_report("too many option ROMs");
3825 exit(1);
3826 }
3827 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3828 optarg, true);
3829 if (!opts) {
3830 exit(1);
3831 }
3832 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3833 option_rom[nb_option_roms].bootindex =
3834 qemu_opt_get_number(opts, "bootindex", -1);
3835 if (!option_rom[nb_option_roms].name) {
3836 error_report("Option ROM file is not specified");
3837 exit(1);
3838 }
3839 nb_option_roms++;
3840 break;
3841 case QEMU_OPTION_semihosting:
3842 semihosting.enabled = true;
3843 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3844 break;
3845 case QEMU_OPTION_semihosting_config:
3846 semihosting.enabled = true;
3847 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3848 optarg, false);
3849 if (opts != NULL) {
3850 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3851 true);
3852 const char *target = qemu_opt_get(opts, "target");
3853 if (target != NULL) {
3854 if (strcmp("native", target) == 0) {
3855 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3856 } else if (strcmp("gdb", target) == 0) {
3857 semihosting.target = SEMIHOSTING_TARGET_GDB;
3858 } else if (strcmp("auto", target) == 0) {
3859 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3860 } else {
3861 error_report("unsupported semihosting-config %s",
3862 optarg);
3863 exit(1);
3864 }
3865 } else {
3866 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3867 }
3868 /* Set semihosting argument count and vector */
3869 qemu_opt_foreach(opts, add_semihosting_arg,
3870 &semihosting, NULL);
3871 } else {
3872 error_report("unsupported semihosting-config %s", optarg);
3873 exit(1);
3874 }
3875 break;
3876 case QEMU_OPTION_name:
3877 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3878 optarg, true);
3879 if (!opts) {
3880 exit(1);
3881 }
3882 break;
3883 case QEMU_OPTION_prom_env:
3884 if (nb_prom_envs >= MAX_PROM_ENVS) {
3885 error_report("too many prom variables");
3886 exit(1);
3887 }
3888 prom_envs[nb_prom_envs] = optarg;
3889 nb_prom_envs++;
3890 break;
3891 case QEMU_OPTION_old_param:
3892 old_param = 1;
3893 break;
3894 case QEMU_OPTION_clock:
3895 /* Clock options no longer exist. Keep this option for
3896 * backward compatibility.
3897 */
3898 break;
3899 case QEMU_OPTION_startdate:
3900 warn_report("This option is deprecated, use '-rtc base=' instead.");
3901 configure_rtc_date_offset(optarg, 1);
3902 break;
3903 case QEMU_OPTION_rtc:
3904 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3905 false);
3906 if (!opts) {
3907 exit(1);
3908 }
3909 configure_rtc(opts);
3910 break;
3911 case QEMU_OPTION_tb_size:
3912 #ifndef CONFIG_TCG
3913 error_report("TCG is disabled");
3914 exit(1);
3915 #endif
3916 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3917 error_report("Invalid argument to -tb-size");
3918 exit(1);
3919 }
3920 break;
3921 case QEMU_OPTION_icount:
3922 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3923 optarg, true);
3924 if (!icount_opts) {
3925 exit(1);
3926 }
3927 break;
3928 case QEMU_OPTION_incoming:
3929 if (!incoming) {
3930 runstate_set(RUN_STATE_INMIGRATE);
3931 }
3932 incoming = optarg;
3933 break;
3934 case QEMU_OPTION_only_migratable:
3935 /*
3936 * TODO: we can remove this option one day, and we
3937 * should all use:
3938 *
3939 * "-global migration.only-migratable=true"
3940 */
3941 qemu_global_option("migration.only-migratable=true");
3942 break;
3943 case QEMU_OPTION_nodefaults:
3944 has_defaults = 0;
3945 break;
3946 case QEMU_OPTION_xen_domid:
3947 if (!(xen_available())) {
3948 error_report("Option not supported for this target");
3949 exit(1);
3950 }
3951 xen_domid = atoi(optarg);
3952 break;
3953 case QEMU_OPTION_xen_create:
3954 if (!(xen_available())) {
3955 error_report("Option not supported for this target");
3956 exit(1);
3957 }
3958 xen_mode = XEN_CREATE;
3959 break;
3960 case QEMU_OPTION_xen_attach:
3961 if (!(xen_available())) {
3962 error_report("Option not supported for this target");
3963 exit(1);
3964 }
3965 xen_mode = XEN_ATTACH;
3966 break;
3967 case QEMU_OPTION_xen_domid_restrict:
3968 if (!(xen_available())) {
3969 error_report("Option not supported for this target");
3970 exit(1);
3971 }
3972 xen_domid_restrict = true;
3973 break;
3974 case QEMU_OPTION_trace:
3975 g_free(trace_file);
3976 trace_file = trace_opt_parse(optarg);
3977 break;
3978 case QEMU_OPTION_readconfig:
3979 {
3980 int ret = qemu_read_config_file(optarg);
3981 if (ret < 0) {
3982 error_report("read config %s: %s", optarg,
3983 strerror(-ret));
3984 exit(1);
3985 }
3986 break;
3987 }
3988 case QEMU_OPTION_spice:
3989 olist = qemu_find_opts("spice");
3990 if (!olist) {
3991 error_report("spice support is disabled");
3992 exit(1);
3993 }
3994 opts = qemu_opts_parse_noisily(olist, optarg, false);
3995 if (!opts) {
3996 exit(1);
3997 }
3998 display_remote++;
3999 break;
4000 case QEMU_OPTION_writeconfig:
4001 {
4002 FILE *fp;
4003 if (strcmp(optarg, "-") == 0) {
4004 fp = stdout;
4005 } else {
4006 fp = fopen(optarg, "w");
4007 if (fp == NULL) {
4008 error_report("open %s: %s", optarg,
4009 strerror(errno));
4010 exit(1);
4011 }
4012 }
4013 qemu_config_write(fp);
4014 if (fp != stdout) {
4015 fclose(fp);
4016 }
4017 break;
4018 }
4019 case QEMU_OPTION_qtest:
4020 qtest_chrdev = optarg;
4021 break;
4022 case QEMU_OPTION_qtest_log:
4023 qtest_log = optarg;
4024 break;
4025 case QEMU_OPTION_sandbox:
4026 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4027 optarg, true);
4028 if (!opts) {
4029 exit(1);
4030 }
4031 break;
4032 case QEMU_OPTION_add_fd:
4033 #ifndef _WIN32
4034 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4035 optarg, false);
4036 if (!opts) {
4037 exit(1);
4038 }
4039 #else
4040 error_report("File descriptor passing is disabled on this "
4041 "platform");
4042 exit(1);
4043 #endif
4044 break;
4045 case QEMU_OPTION_object:
4046 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4047 optarg, true);
4048 if (!opts) {
4049 exit(1);
4050 }
4051 break;
4052 case QEMU_OPTION_realtime:
4053 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4054 optarg, false);
4055 if (!opts) {
4056 exit(1);
4057 }
4058 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4059 break;
4060 case QEMU_OPTION_msg:
4061 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4062 false);
4063 if (!opts) {
4064 exit(1);
4065 }
4066 configure_msg(opts);
4067 break;
4068 case QEMU_OPTION_dump_vmstate:
4069 if (vmstate_dump_file) {
4070 error_report("only one '-dump-vmstate' "
4071 "option may be given");
4072 exit(1);
4073 }
4074 vmstate_dump_file = fopen(optarg, "w");
4075 if (vmstate_dump_file == NULL) {
4076 error_report("open %s: %s", optarg, strerror(errno));
4077 exit(1);
4078 }
4079 break;
4080 default:
4081 os_parse_cmd_args(popt->index, optarg);
4082 }
4083 }
4084 }
4085 /*
4086 * Clear error location left behind by the loop.
4087 * Best done right after the loop. Do not insert code here!
4088 */
4089 loc_set_none();
4090
4091 replay_configure(icount_opts);
4092
4093 machine_class = select_machine();
4094
4095 set_memory_options(&ram_slots, &maxram_size, machine_class);
4096
4097 os_daemonize();
4098 rcu_disable_atfork();
4099
4100 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4101 error_report("could not acquire pid file: %s", strerror(errno));
4102 exit(1);
4103 }
4104
4105 if (qemu_init_main_loop(&main_loop_err)) {
4106 error_report_err(main_loop_err);
4107 exit(1);
4108 }
4109
4110 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4111 parse_sandbox, NULL, NULL)) {
4112 exit(1);
4113 }
4114
4115 if (qemu_opts_foreach(qemu_find_opts("name"),
4116 parse_name, NULL, NULL)) {
4117 exit(1);
4118 }
4119
4120 #ifndef _WIN32
4121 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4122 parse_add_fd, NULL, NULL)) {
4123 exit(1);
4124 }
4125
4126 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4127 cleanup_add_fd, NULL, NULL)) {
4128 exit(1);
4129 }
4130 #endif
4131
4132 current_machine = MACHINE(object_new(object_class_get_name(
4133 OBJECT_CLASS(machine_class))));
4134 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4135 exit(0);
4136 }
4137 object_property_add_child(object_get_root(), "machine",
4138 OBJECT(current_machine), &error_abort);
4139
4140 if (machine_class->minimum_page_bits) {
4141 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4142 /* This would be a board error: specifying a minimum smaller than
4143 * a target's compile-time fixed setting.
4144 */
4145 g_assert_not_reached();
4146 }
4147 }
4148
4149 cpu_exec_init_all();
4150
4151 if (machine_class->hw_version) {
4152 qemu_set_hw_version(machine_class->hw_version);
4153 }
4154
4155 if (cpu_model && is_help_option(cpu_model)) {
4156 list_cpus(stdout, &fprintf, cpu_model);
4157 exit(0);
4158 }
4159
4160 if (!trace_init_backends()) {
4161 exit(1);
4162 }
4163 trace_init_file(trace_file);
4164
4165 /* Open the logfile at this point and set the log mask if necessary.
4166 */
4167 if (log_file) {
4168 qemu_set_log_filename(log_file, &error_fatal);
4169 }
4170
4171 if (log_mask) {
4172 int mask;
4173 mask = qemu_str_to_log_mask(log_mask);
4174 if (!mask) {
4175 qemu_print_log_usage(stdout);
4176 exit(1);
4177 }
4178 qemu_set_log(mask);
4179 } else {
4180 qemu_set_log(0);
4181 }
4182
4183 /* add configured firmware directories */
4184 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4185 for (i = 0; dirs[i] != NULL; i++) {
4186 qemu_add_data_dir(dirs[i]);
4187 }
4188 g_strfreev(dirs);
4189
4190 /* try to find datadir relative to the executable path */
4191 dir = os_find_datadir();
4192 qemu_add_data_dir(dir);
4193 g_free(dir);
4194
4195 /* add the datadir specified when building */
4196 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4197
4198 /* -L help lists the data directories and exits. */
4199 if (list_data_dirs) {
4200 for (i = 0; i < data_dir_idx; i++) {
4201 printf("%s\n", data_dir[i]);
4202 }
4203 exit(0);
4204 }
4205
4206 /* machine_class: default to UP */
4207 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4208 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4209 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4210
4211 /* default to machine_class->default_cpus */
4212 smp_cpus = machine_class->default_cpus;
4213 max_cpus = machine_class->default_cpus;
4214
4215 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4216
4217 /* sanity-check smp_cpus and max_cpus against machine_class */
4218 if (smp_cpus < machine_class->min_cpus) {
4219 error_report("Invalid SMP CPUs %d. The min CPUs "
4220 "supported by machine '%s' is %d", smp_cpus,
4221 machine_class->name, machine_class->min_cpus);
4222 exit(1);
4223 }
4224 if (max_cpus > machine_class->max_cpus) {
4225 error_report("Invalid SMP CPUs %d. The max CPUs "
4226 "supported by machine '%s' is %d", max_cpus,
4227 machine_class->name, machine_class->max_cpus);
4228 exit(1);
4229 }
4230
4231 /*
4232 * Get the default machine options from the machine if it is not already
4233 * specified either by the configuration file or by the command line.
4234 */
4235 if (machine_class->default_machine_opts) {
4236 qemu_opts_set_defaults(qemu_find_opts("machine"),
4237 machine_class->default_machine_opts, 0);
4238 }
4239
4240 qemu_opts_foreach(qemu_find_opts("device"),
4241 default_driver_check, NULL, NULL);
4242 qemu_opts_foreach(qemu_find_opts("global"),
4243 default_driver_check, NULL, NULL);
4244
4245 if (!vga_model && !default_vga) {
4246 vga_interface_type = VGA_DEVICE;
4247 }
4248 if (!has_defaults || machine_class->no_serial) {
4249 default_serial = 0;
4250 }
4251 if (!has_defaults || machine_class->no_parallel) {
4252 default_parallel = 0;
4253 }
4254 if (!has_defaults || !machine_class->use_virtcon) {
4255 default_virtcon = 0;
4256 }
4257 if (!has_defaults || !machine_class->use_sclp) {
4258 default_sclp = 0;
4259 }
4260 if (!has_defaults || machine_class->no_floppy) {
4261 default_floppy = 0;
4262 }
4263 if (!has_defaults || machine_class->no_cdrom) {
4264 default_cdrom = 0;
4265 }
4266 if (!has_defaults || machine_class->no_sdcard) {
4267 default_sdcard = 0;
4268 }
4269 if (!has_defaults) {
4270 default_monitor = 0;
4271 default_net = 0;
4272 default_vga = 0;
4273 }
4274
4275 if (is_daemonized()) {
4276 /* According to documentation and historically, -nographic redirects
4277 * serial port, parallel port and monitor to stdio, which does not work
4278 * with -daemonize. We can redirect these to null instead, but since
4279 * -nographic is legacy, let's just error out.
4280 * We disallow -nographic only if all other ports are not redirected
4281 * explicitly, to not break existing legacy setups which uses
4282 * -nographic _and_ redirects all ports explicitly - this is valid
4283 * usage, -nographic is just a no-op in this case.
4284 */
4285 if (nographic
4286 && (default_parallel || default_serial
4287 || default_monitor || default_virtcon)) {
4288 error_report("-nographic cannot be used with -daemonize");
4289 exit(1);
4290 }
4291 #ifdef CONFIG_CURSES
4292 if (dpy.type == DISPLAY_TYPE_CURSES) {
4293 error_report("curses display cannot be used with -daemonize");
4294 exit(1);
4295 }
4296 #endif
4297 }
4298
4299 if (nographic) {
4300 if (default_parallel)
4301 add_device_config(DEV_PARALLEL, "null");
4302 if (default_serial && default_monitor) {
4303 add_device_config(DEV_SERIAL, "mon:stdio");
4304 } else if (default_virtcon && default_monitor) {
4305 add_device_config(DEV_VIRTCON, "mon:stdio");
4306 } else if (default_sclp && default_monitor) {
4307 add_device_config(DEV_SCLP, "mon:stdio");
4308 } else {
4309 if (default_serial)
4310 add_device_config(DEV_SERIAL, "stdio");
4311 if (default_virtcon)
4312 add_device_config(DEV_VIRTCON, "stdio");
4313 if (default_sclp) {
4314 add_device_config(DEV_SCLP, "stdio");
4315 }
4316 if (default_monitor)
4317 monitor_parse("stdio", "readline", false);
4318 }
4319 } else {
4320 if (default_serial)
4321 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4322 if (default_parallel)
4323 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4324 if (default_monitor)
4325 monitor_parse("vc:80Cx24C", "readline", false);
4326 if (default_virtcon)
4327 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4328 if (default_sclp) {
4329 add_device_config(DEV_SCLP, "vc:80Cx24C");
4330 }
4331 }
4332
4333 #if defined(CONFIG_VNC)
4334 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4335 display_remote++;
4336 }
4337 #endif
4338 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4339 if (!qemu_display_find_default(&dpy)) {
4340 dpy.type = DISPLAY_TYPE_NONE;
4341 #if defined(CONFIG_VNC)
4342 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4343 #endif
4344 }
4345 }
4346 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4347 dpy.type = DISPLAY_TYPE_NONE;
4348 }
4349
4350 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4351 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4352 "for SDL, ignoring option");
4353 }
4354 if (dpy.has_window_close &&
4355 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4356 error_report("-no-quit is only valid for GTK and SDL, "
4357 "ignoring option");
4358 }
4359
4360 qemu_display_early_init(&dpy);
4361 qemu_console_early_init();
4362
4363 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4364 #if defined(CONFIG_OPENGL)
4365 error_report("OpenGL is not supported by the display");
4366 #else
4367 error_report("OpenGL support is disabled");
4368 #endif
4369 exit(1);
4370 }
4371
4372 page_size_init();
4373 socket_init();
4374
4375 if (qemu_opts_foreach(qemu_find_opts("object"),
4376 user_creatable_add_opts_foreach,
4377 object_create_initial, NULL)) {
4378 exit(1);
4379 }
4380
4381 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4382 chardev_init_func, NULL, NULL)) {
4383 exit(1);
4384 }
4385
4386 #ifdef CONFIG_VIRTFS
4387 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4388 fsdev_init_func, NULL, NULL)) {
4389 exit(1);
4390 }
4391 #endif
4392
4393 if (qemu_opts_foreach(qemu_find_opts("device"),
4394 device_help_func, NULL, NULL)) {
4395 exit(0);
4396 }
4397
4398 machine_opts = qemu_get_machine_opts();
4399 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4400 NULL)) {
4401 object_unref(OBJECT(current_machine));
4402 exit(1);
4403 }
4404
4405 configure_accelerator(current_machine);
4406
4407 /*
4408 * Register all the global properties, including accel properties,
4409 * machine properties, and user-specified ones.
4410 */
4411 register_global_properties(current_machine);
4412
4413 /*
4414 * Migration object can only be created after global properties
4415 * are applied correctly.
4416 */
4417 migration_object_init();
4418
4419 if (qtest_chrdev) {
4420 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4421 }
4422
4423 machine_opts = qemu_get_machine_opts();
4424 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4425 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4426 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4427 bios_name = qemu_opt_get(machine_opts, "firmware");
4428
4429 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4430 if (opts) {
4431 boot_order = qemu_opt_get(opts, "order");
4432 if (boot_order) {
4433 validate_bootdevices(boot_order, &error_fatal);
4434 }
4435
4436 boot_once = qemu_opt_get(opts, "once");
4437 if (boot_once) {
4438 validate_bootdevices(boot_once, &error_fatal);
4439 }
4440
4441 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4442 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4443 }
4444
4445 if (!boot_order) {
4446 boot_order = machine_class->default_boot_order;
4447 }
4448
4449 if (!kernel_cmdline) {
4450 kernel_cmdline = "";
4451 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4452 }
4453
4454 linux_boot = (kernel_filename != NULL);
4455
4456 if (!linux_boot && *kernel_cmdline != '\0') {
4457 error_report("-append only allowed with -kernel option");
4458 exit(1);
4459 }
4460
4461 if (!linux_boot && initrd_filename != NULL) {
4462 error_report("-initrd only allowed with -kernel option");
4463 exit(1);
4464 }
4465
4466 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4467 /* fall back to the -kernel/-append */
4468 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4469 }
4470
4471 os_set_line_buffering();
4472
4473 /* spice needs the timers to be initialized by this point */
4474 qemu_spice_init();
4475
4476 cpu_ticks_init();
4477 if (icount_opts) {
4478 if (!tcg_enabled()) {
4479 error_report("-icount is not allowed with hardware virtualization");
4480 exit(1);
4481 }
4482 configure_icount(icount_opts, &error_abort);
4483 qemu_opts_del(icount_opts);
4484 }
4485
4486 if (tcg_enabled()) {
4487 qemu_tcg_configure(accel_opts, &error_fatal);
4488 }
4489
4490 if (default_net) {
4491 QemuOptsList *net = qemu_find_opts("net");
4492 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4493 #ifdef CONFIG_SLIRP
4494 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4495 #endif
4496 }
4497
4498 colo_info_init();
4499
4500 if (net_init_clients(&err) < 0) {
4501 error_report_err(err);
4502 exit(1);
4503 }
4504
4505 if (qemu_opts_foreach(qemu_find_opts("object"),
4506 user_creatable_add_opts_foreach,
4507 object_create_delayed, NULL)) {
4508 exit(1);
4509 }
4510
4511 if (tpm_init() < 0) {
4512 exit(1);
4513 }
4514
4515 /* init the bluetooth world */
4516 if (foreach_device_config(DEV_BT, bt_parse))
4517 exit(1);
4518
4519 if (!xen_enabled()) {
4520 /* On 32-bit hosts, QEMU is limited by virtual address space */
4521 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4522 error_report("at most 2047 MB RAM can be simulated");
4523 exit(1);
4524 }
4525 }
4526
4527 blk_mig_init();
4528 ram_mig_init();
4529 dirty_bitmap_mig_init();
4530
4531 /* If the currently selected machine wishes to override the units-per-bus
4532 * property of its default HBA interface type, do so now. */
4533 if (machine_class->units_per_default_bus) {
4534 override_max_devs(machine_class->block_default_type,
4535 machine_class->units_per_default_bus);
4536 }
4537
4538 /* open the virtual block devices */
4539 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4540 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4541
4542 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4543 loc_push_restore(&bdo->loc);
4544 qmp_blockdev_add(bdo->bdo, &error_fatal);
4545 loc_pop(&bdo->loc);
4546 qapi_free_BlockdevOptions(bdo->bdo);
4547 g_free(bdo);
4548 }
4549 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4550 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4551 NULL, NULL);
4552 }
4553 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4554 &machine_class->block_default_type, NULL)) {
4555 exit(1);
4556 }
4557
4558 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4559 CDROM_OPTS);
4560 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4561 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4562
4563 /*
4564 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4565 * depends on configure_accelerator() above.
4566 */
4567 monitor_init_globals();
4568
4569 if (qemu_opts_foreach(qemu_find_opts("mon"),
4570 mon_init_func, NULL, NULL)) {
4571 exit(1);
4572 }
4573
4574 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4575 exit(1);
4576 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4577 exit(1);
4578 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4579 exit(1);
4580 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4581 exit(1);
4582 }
4583 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4584 exit(1);
4585
4586 /* If no default VGA is requested, the default is "none". */
4587 if (default_vga) {
4588 if (machine_class->default_display) {
4589 vga_model = machine_class->default_display;
4590 } else if (vga_interface_available(VGA_CIRRUS)) {
4591 vga_model = "cirrus";
4592 } else if (vga_interface_available(VGA_STD)) {
4593 vga_model = "std";
4594 }
4595 }
4596 if (vga_model) {
4597 select_vgahw(vga_model);
4598 }
4599
4600 if (watchdog) {
4601 i = select_watchdog(watchdog);
4602 if (i > 0)
4603 exit (i == 1 ? 1 : 0);
4604 }
4605
4606 /* This checkpoint is required by replay to separate prior clock
4607 reading from the other reads, because timer polling functions query
4608 clock values from the log. */
4609 replay_checkpoint(CHECKPOINT_INIT);
4610 qdev_machine_init();
4611
4612 current_machine->ram_size = ram_size;
4613 current_machine->maxram_size = maxram_size;
4614 current_machine->ram_slots = ram_slots;
4615 current_machine->boot_order = boot_order;
4616
4617 /* parse features once if machine provides default cpu_type */
4618 current_machine->cpu_type = machine_class->default_cpu_type;
4619 if (cpu_model) {
4620 current_machine->cpu_type = parse_cpu_model(cpu_model);
4621 }
4622 parse_numa_opts(current_machine);
4623
4624 machine_run_board_init(current_machine);
4625
4626 realtime_init();
4627
4628 soundhw_init();
4629
4630 if (hax_enabled()) {
4631 hax_sync_vcpus();
4632 }
4633
4634 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4635 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4636 exit(1);
4637 }
4638
4639 /* init USB devices */
4640 if (machine_usb(current_machine)) {
4641 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4642 exit(1);
4643 }
4644
4645 /* Check if IGD GFX passthrough. */
4646 igd_gfx_passthru();
4647
4648 /* init generic devices */
4649 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4650 if (qemu_opts_foreach(qemu_find_opts("device"),
4651 device_init_func, NULL, NULL)) {
4652 exit(1);
4653 }
4654
4655 cpu_synchronize_all_post_init();
4656
4657 rom_reset_order_override();
4658
4659 /* Did we create any drives that we failed to create a device for? */
4660 drive_check_orphaned();
4661
4662 /* Don't warn about the default network setup that you get if
4663 * no command line -net or -netdev options are specified. There
4664 * are two cases that we would otherwise complain about:
4665 * (1) board doesn't support a NIC but the implicit "-net nic"
4666 * requested one
4667 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4668 * sets up a nic that isn't connected to anything.
4669 */
4670 if (!default_net) {
4671 net_check_clients();
4672 }
4673
4674
4675 if (boot_once) {
4676 qemu_boot_set(boot_once, &error_fatal);
4677 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4678 }
4679
4680 /* init local displays */
4681 ds = init_displaystate();
4682 qemu_display_init(ds, &dpy);
4683
4684 /* must be after terminal init, SDL library changes signal handlers */
4685 os_setup_signal_handling();
4686
4687 /* init remote displays */
4688 #ifdef CONFIG_VNC
4689 qemu_opts_foreach(qemu_find_opts("vnc"),
4690 vnc_init_func, NULL, NULL);
4691 #endif
4692
4693 if (using_spice) {
4694 qemu_spice_display_init();
4695 }
4696
4697 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4698 exit(1);
4699 }
4700
4701 qdev_machine_creation_done();
4702
4703 /* TODO: once all bus devices are qdevified, this should be done
4704 * when bus is created by qdev.c */
4705 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4706 qemu_run_machine_init_done_notifiers();
4707
4708 if (rom_check_and_register_reset() != 0) {
4709 error_report("rom check and register reset failed");
4710 exit(1);
4711 }
4712
4713 replay_start();
4714
4715 /* This checkpoint is required by replay to separate prior clock
4716 reading from the other reads, because timer polling functions query
4717 clock values from the log. */
4718 replay_checkpoint(CHECKPOINT_RESET);
4719 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4720 register_global_state();
4721 if (replay_mode != REPLAY_MODE_NONE) {
4722 replay_vmstate_init();
4723 } else if (loadvm) {
4724 Error *local_err = NULL;
4725 if (load_snapshot(loadvm, &local_err) < 0) {
4726 error_report_err(local_err);
4727 autostart = 0;
4728 }
4729 }
4730
4731 qdev_prop_check_globals();
4732 if (vmstate_dump_file) {
4733 /* dump and exit */
4734 dump_vmstate_json_to_file(vmstate_dump_file);
4735 return 0;
4736 }
4737
4738 if (incoming) {
4739 Error *local_err = NULL;
4740 qemu_start_incoming_migration(incoming, &local_err);
4741 if (local_err) {
4742 error_reportf_err(local_err, "-incoming %s: ", incoming);
4743 exit(1);
4744 }
4745 } else if (autostart) {
4746 vm_start();
4747 }
4748
4749 accel_setup_post(current_machine);
4750 os_setup_post();
4751
4752 main_loop();
4753
4754 gdbserver_cleanup();
4755
4756 /* No more vcpu or device emulation activity beyond this point */
4757 vm_shutdown();
4758
4759 bdrv_close_all();
4760
4761 res_free();
4762
4763 /* vhost-user must be cleaned up before chardevs. */
4764 tpm_cleanup();
4765 net_cleanup();
4766 audio_cleanup();
4767 monitor_cleanup();
4768 qemu_chr_cleanup();
4769 user_creatable_cleanup();
4770 migration_object_finalize();
4771 /* TODO: unref root container, check all devices are ok */
4772
4773 return 0;
4774 }
AR7 emulation for QEMU