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xen-hvm: Clean up xen_ram_alloc() error handling
[qemu.git] / vl.c
blobb7a083eb5683e045f3f4d944c661b9e98255403f
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 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
30
31 #include "config-host.h"
32
33 #ifdef CONFIG_SECCOMP
34 #include "sysemu/seccomp.h"
35 #endif
36
37 #if defined(CONFIG_VDE)
38 #include <libvdeplug.h>
39 #endif
40
41 #ifdef CONFIG_SDL
42 #if defined(__APPLE__) || defined(main)
43 #include <SDL.h>
44 int qemu_main(int argc, char **argv, char **envp);
45 int main(int argc, char **argv)
46 {
47 return qemu_main(argc, argv, NULL);
48 }
49 #undef main
50 #define main qemu_main
51 #endif
52 #endif /* CONFIG_SDL */
53
54 #ifdef CONFIG_COCOA
55 #undef main
56 #define main qemu_main
57 #endif /* CONFIG_COCOA */
58
59 #include <glib.h>
60
61 #include "qemu/error-report.h"
62 #include "qemu/sockets.h"
63 #include "hw/hw.h"
64 #include "hw/boards.h"
65 #include "sysemu/accel.h"
66 #include "hw/usb.h"
67 #include "hw/i386/pc.h"
68 #include "hw/isa/isa.h"
69 #include "hw/bt.h"
70 #include "sysemu/watchdog.h"
71 #include "hw/smbios/smbios.h"
72 #include "hw/xen/xen.h"
73 #include "hw/qdev.h"
74 #include "hw/loader.h"
75 #include "monitor/qdev.h"
76 #include "sysemu/bt.h"
77 #include "net/net.h"
78 #include "net/slirp.h"
79 #include "monitor/monitor.h"
80 #include "ui/console.h"
81 #include "sysemu/sysemu.h"
82 #include "sysemu/numa.h"
83 #include "exec/gdbstub.h"
84 #include "qemu/timer.h"
85 #include "sysemu/char.h"
86 #include "qemu/bitmap.h"
87 #include "sysemu/blockdev.h"
88 #include "hw/block/block.h"
89 #include "migration/block.h"
90 #include "sysemu/tpm.h"
91 #include "sysemu/dma.h"
92 #include "audio/audio.h"
93 #include "migration/migration.h"
94 #include "sysemu/kvm.h"
95 #include "qapi/qmp/qjson.h"
96 #include "qemu/option.h"
97 #include "qemu/config-file.h"
98 #include "qemu-options.h"
99 #include "qmp-commands.h"
100 #include "qemu/main-loop.h"
101 #ifdef CONFIG_VIRTFS
102 #include "fsdev/qemu-fsdev.h"
103 #endif
104 #include "sysemu/qtest.h"
105
106 #include "disas/disas.h"
107
108
109 #include "slirp/libslirp.h"
110
111 #include "trace.h"
112 #include "trace/control.h"
113 #include "qemu/queue.h"
114 #include "sysemu/cpus.h"
115 #include "sysemu/arch_init.h"
116 #include "qemu/osdep.h"
117
118 #include "ui/qemu-spice.h"
119 #include "qapi/string-input-visitor.h"
120 #include "qapi/opts-visitor.h"
121 #include "qom/object_interfaces.h"
122 #include "qapi-event.h"
123 #include "exec/semihost.h"
124 #include "crypto/init.h"
125 #include "sysemu/replay.h"
126 #include "qapi/qmp/qerror.h"
127
128 #define MAX_VIRTIO_CONSOLES 1
129 #define MAX_SCLP_CONSOLES 1
130
131 static const char *data_dir[16];
132 static int data_dir_idx;
133 const char *bios_name = NULL;
134 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
135 DisplayType display_type = DT_DEFAULT;
136 int request_opengl = -1;
137 int display_opengl;
138 static int display_remote;
139 const char* keyboard_layout = NULL;
140 ram_addr_t ram_size;
141 const char *mem_path = NULL;
142 int mem_prealloc = 0; /* force preallocation of physical target memory */
143 bool enable_mlock = false;
144 int nb_nics;
145 NICInfo nd_table[MAX_NICS];
146 int autostart;
147 static int rtc_utc = 1;
148 static int rtc_date_offset = -1; /* -1 means no change */
149 QEMUClockType rtc_clock;
150 int vga_interface_type = VGA_NONE;
151 static int full_screen = 0;
152 static int no_frame = 0;
153 int no_quit = 0;
154 #ifdef CONFIG_GTK
155 static bool grab_on_hover;
156 #endif
157 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
158 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
159 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
160 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
161 int win2k_install_hack = 0;
162 int singlestep = 0;
163 int smp_cpus = 1;
164 int max_cpus = 0;
165 int smp_cores = 1;
166 int smp_threads = 1;
167 int acpi_enabled = 1;
168 int no_hpet = 0;
169 int fd_bootchk = 1;
170 static int no_reboot;
171 int no_shutdown = 0;
172 int cursor_hide = 1;
173 int graphic_rotate = 0;
174 const char *watchdog;
175 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
176 int nb_option_roms;
177 int old_param = 0;
178 const char *qemu_name;
179 int alt_grab = 0;
180 int ctrl_grab = 0;
181 unsigned int nb_prom_envs = 0;
182 const char *prom_envs[MAX_PROM_ENVS];
183 int boot_menu;
184 bool boot_strict;
185 uint8_t *boot_splash_filedata;
186 size_t boot_splash_filedata_size;
187 uint8_t qemu_extra_params_fw[2];
188
189 int icount_align_option;
190
191 /* The bytes in qemu_uuid[] are in the order specified by RFC4122, _not_ in the
192 * little-endian "wire format" described in the SMBIOS 2.6 specification.
193 */
194 uint8_t qemu_uuid[16];
195 bool qemu_uuid_set;
196
197 static NotifierList exit_notifiers =
198 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
199
200 static NotifierList machine_init_done_notifiers =
201 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
202
203 bool xen_allowed;
204 uint32_t xen_domid;
205 enum xen_mode xen_mode = XEN_EMULATE;
206
207 static int has_defaults = 1;
208 static int default_serial = 1;
209 static int default_parallel = 1;
210 static int default_virtcon = 1;
211 static int default_sclp = 1;
212 static int default_monitor = 1;
213 static int default_floppy = 1;
214 static int default_cdrom = 1;
215 static int default_sdcard = 1;
216 static int default_vga = 1;
217
218 static struct {
219 const char *driver;
220 int *flag;
221 } default_list[] = {
222 { .driver = "isa-serial", .flag = &default_serial },
223 { .driver = "isa-parallel", .flag = &default_parallel },
224 { .driver = "isa-fdc", .flag = &default_floppy },
225 { .driver = "ide-cd", .flag = &default_cdrom },
226 { .driver = "ide-hd", .flag = &default_cdrom },
227 { .driver = "ide-drive", .flag = &default_cdrom },
228 { .driver = "scsi-cd", .flag = &default_cdrom },
229 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
230 { .driver = "virtio-serial", .flag = &default_virtcon },
231 { .driver = "VGA", .flag = &default_vga },
232 { .driver = "isa-vga", .flag = &default_vga },
233 { .driver = "cirrus-vga", .flag = &default_vga },
234 { .driver = "isa-cirrus-vga", .flag = &default_vga },
235 { .driver = "vmware-svga", .flag = &default_vga },
236 { .driver = "qxl-vga", .flag = &default_vga },
237 { .driver = "virtio-vga", .flag = &default_vga },
238 };
239
240 static QemuOptsList qemu_rtc_opts = {
241 .name = "rtc",
242 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
243 .desc = {
244 {
245 .name = "base",
246 .type = QEMU_OPT_STRING,
247 },{
248 .name = "clock",
249 .type = QEMU_OPT_STRING,
250 },{
251 .name = "driftfix",
252 .type = QEMU_OPT_STRING,
253 },
254 { /* end of list */ }
255 },
256 };
257
258 static QemuOptsList qemu_sandbox_opts = {
259 .name = "sandbox",
260 .implied_opt_name = "enable",
261 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
262 .desc = {
263 {
264 .name = "enable",
265 .type = QEMU_OPT_BOOL,
266 },
267 { /* end of list */ }
268 },
269 };
270
271 static QemuOptsList qemu_trace_opts = {
272 .name = "trace",
273 .implied_opt_name = "trace",
274 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
275 .desc = {
276 {
277 .name = "events",
278 .type = QEMU_OPT_STRING,
279 },{
280 .name = "file",
281 .type = QEMU_OPT_STRING,
282 },
283 { /* end of list */ }
284 },
285 };
286
287 static QemuOptsList qemu_option_rom_opts = {
288 .name = "option-rom",
289 .implied_opt_name = "romfile",
290 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
291 .desc = {
292 {
293 .name = "bootindex",
294 .type = QEMU_OPT_NUMBER,
295 }, {
296 .name = "romfile",
297 .type = QEMU_OPT_STRING,
298 },
299 { /* end of list */ }
300 },
301 };
302
303 static QemuOptsList qemu_machine_opts = {
304 .name = "machine",
305 .implied_opt_name = "type",
306 .merge_lists = true,
307 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
308 .desc = {
309 /*
310 * no elements => accept any
311 * sanity checking will happen later
312 * when setting machine properties
313 */
314 { }
315 },
316 };
317
318 static QemuOptsList qemu_boot_opts = {
319 .name = "boot-opts",
320 .implied_opt_name = "order",
321 .merge_lists = true,
322 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
323 .desc = {
324 {
325 .name = "order",
326 .type = QEMU_OPT_STRING,
327 }, {
328 .name = "once",
329 .type = QEMU_OPT_STRING,
330 }, {
331 .name = "menu",
332 .type = QEMU_OPT_BOOL,
333 }, {
334 .name = "splash",
335 .type = QEMU_OPT_STRING,
336 }, {
337 .name = "splash-time",
338 .type = QEMU_OPT_STRING,
339 }, {
340 .name = "reboot-timeout",
341 .type = QEMU_OPT_STRING,
342 }, {
343 .name = "strict",
344 .type = QEMU_OPT_BOOL,
345 },
346 { /*End of list */ }
347 },
348 };
349
350 static QemuOptsList qemu_add_fd_opts = {
351 .name = "add-fd",
352 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
353 .desc = {
354 {
355 .name = "fd",
356 .type = QEMU_OPT_NUMBER,
357 .help = "file descriptor of which a duplicate is added to fd set",
358 },{
359 .name = "set",
360 .type = QEMU_OPT_NUMBER,
361 .help = "ID of the fd set to add fd to",
362 },{
363 .name = "opaque",
364 .type = QEMU_OPT_STRING,
365 .help = "free-form string used to describe fd",
366 },
367 { /* end of list */ }
368 },
369 };
370
371 static QemuOptsList qemu_object_opts = {
372 .name = "object",
373 .implied_opt_name = "qom-type",
374 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
375 .desc = {
376 { }
377 },
378 };
379
380 static QemuOptsList qemu_tpmdev_opts = {
381 .name = "tpmdev",
382 .implied_opt_name = "type",
383 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
384 .desc = {
385 /* options are defined in the TPM backends */
386 { /* end of list */ }
387 },
388 };
389
390 static QemuOptsList qemu_realtime_opts = {
391 .name = "realtime",
392 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
393 .desc = {
394 {
395 .name = "mlock",
396 .type = QEMU_OPT_BOOL,
397 },
398 { /* end of list */ }
399 },
400 };
401
402 static QemuOptsList qemu_msg_opts = {
403 .name = "msg",
404 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
405 .desc = {
406 {
407 .name = "timestamp",
408 .type = QEMU_OPT_BOOL,
409 },
410 { /* end of list */ }
411 },
412 };
413
414 static QemuOptsList qemu_name_opts = {
415 .name = "name",
416 .implied_opt_name = "guest",
417 .merge_lists = true,
418 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
419 .desc = {
420 {
421 .name = "guest",
422 .type = QEMU_OPT_STRING,
423 .help = "Sets the name of the guest.\n"
424 "This name will be displayed in the SDL window caption.\n"
425 "The name will also be used for the VNC server",
426 }, {
427 .name = "process",
428 .type = QEMU_OPT_STRING,
429 .help = "Sets the name of the QEMU process, as shown in top etc",
430 }, {
431 .name = "debug-threads",
432 .type = QEMU_OPT_BOOL,
433 .help = "When enabled, name the individual threads; defaults off.\n"
434 "NOTE: The thread names are for debugging and not a\n"
435 "stable API.",
436 },
437 { /* End of list */ }
438 },
439 };
440
441 static QemuOptsList qemu_mem_opts = {
442 .name = "memory",
443 .implied_opt_name = "size",
444 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
445 .merge_lists = true,
446 .desc = {
447 {
448 .name = "size",
449 .type = QEMU_OPT_SIZE,
450 },
451 {
452 .name = "slots",
453 .type = QEMU_OPT_NUMBER,
454 },
455 {
456 .name = "maxmem",
457 .type = QEMU_OPT_SIZE,
458 },
459 { /* end of list */ }
460 },
461 };
462
463 static QemuOptsList qemu_icount_opts = {
464 .name = "icount",
465 .implied_opt_name = "shift",
466 .merge_lists = true,
467 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
468 .desc = {
469 {
470 .name = "shift",
471 .type = QEMU_OPT_STRING,
472 }, {
473 .name = "align",
474 .type = QEMU_OPT_BOOL,
475 }, {
476 .name = "sleep",
477 .type = QEMU_OPT_BOOL,
478 }, {
479 .name = "rr",
480 .type = QEMU_OPT_STRING,
481 }, {
482 .name = "rrfile",
483 .type = QEMU_OPT_STRING,
484 },
485 { /* end of list */ }
486 },
487 };
488
489 static QemuOptsList qemu_semihosting_config_opts = {
490 .name = "semihosting-config",
491 .implied_opt_name = "enable",
492 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
493 .desc = {
494 {
495 .name = "enable",
496 .type = QEMU_OPT_BOOL,
497 }, {
498 .name = "target",
499 .type = QEMU_OPT_STRING,
500 }, {
501 .name = "arg",
502 .type = QEMU_OPT_STRING,
503 },
504 { /* end of list */ }
505 },
506 };
507
508 static QemuOptsList qemu_fw_cfg_opts = {
509 .name = "fw_cfg",
510 .implied_opt_name = "name",
511 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
512 .desc = {
513 {
514 .name = "name",
515 .type = QEMU_OPT_STRING,
516 .help = "Sets the fw_cfg name of the blob to be inserted",
517 }, {
518 .name = "file",
519 .type = QEMU_OPT_STRING,
520 .help = "Sets the name of the file from which\n"
521 "the fw_cfg blob will be loaded",
522 }, {
523 .name = "string",
524 .type = QEMU_OPT_STRING,
525 .help = "Sets content of the blob to be inserted from a string",
526 },
527 { /* end of list */ }
528 },
529 };
530
531 /**
532 * Get machine options
533 *
534 * Returns: machine options (never null).
535 */
536 QemuOpts *qemu_get_machine_opts(void)
537 {
538 return qemu_find_opts_singleton("machine");
539 }
540
541 const char *qemu_get_vm_name(void)
542 {
543 return qemu_name;
544 }
545
546 static void res_free(void)
547 {
548 g_free(boot_splash_filedata);
549 boot_splash_filedata = NULL;
550 }
551
552 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
553 {
554 const char *driver = qemu_opt_get(opts, "driver");
555 int i;
556
557 if (!driver)
558 return 0;
559 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
560 if (strcmp(default_list[i].driver, driver) != 0)
561 continue;
562 *(default_list[i].flag) = 0;
563 }
564 return 0;
565 }
566
567 /***********************************************************/
568 /* QEMU state */
569
570 static RunState current_run_state = RUN_STATE_PRELAUNCH;
571
572 /* We use RUN_STATE__MAX but any invalid value will do */
573 static RunState vmstop_requested = RUN_STATE__MAX;
574 static QemuMutex vmstop_lock;
575
576 typedef struct {
577 RunState from;
578 RunState to;
579 } RunStateTransition;
580
581 static const RunStateTransition runstate_transitions_def[] = {
582 /* from -> to */
583 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
584 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
585
586 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
587 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
588 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
589 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
590 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
591 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
592 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
593 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
594 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
595
596 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
597 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
598
599 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
600 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
601
602 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
603 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
604
605 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
606 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
607
608 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
609 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
610 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
611
612 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
613 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
614
615 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
616
617 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
618 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
619 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
620 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
621 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
623 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
624 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
625 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
626 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
627
628 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
629
630 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
631 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
632
633 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
634 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
635 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
636 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
637
638 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
639 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
640
641 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
642 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
643
644 { RUN_STATE__MAX, RUN_STATE__MAX },
645 };
646
647 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
648
649 bool runstate_check(RunState state)
650 {
651 return current_run_state == state;
652 }
653
654 bool runstate_store(char *str, size_t size)
655 {
656 const char *state = RunState_lookup[current_run_state];
657 size_t len = strlen(state) + 1;
658
659 if (len > size) {
660 return false;
661 }
662 memcpy(str, state, len);
663 return true;
664 }
665
666 static void runstate_init(void)
667 {
668 const RunStateTransition *p;
669
670 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
671 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
672 runstate_valid_transitions[p->from][p->to] = true;
673 }
674
675 qemu_mutex_init(&vmstop_lock);
676 }
677
678 /* This function will abort() on invalid state transitions */
679 void runstate_set(RunState new_state)
680 {
681 assert(new_state < RUN_STATE__MAX);
682
683 if (!runstate_valid_transitions[current_run_state][new_state]) {
684 error_report("invalid runstate transition: '%s' -> '%s'",
685 RunState_lookup[current_run_state],
686 RunState_lookup[new_state]);
687 abort();
688 }
689 trace_runstate_set(new_state);
690 current_run_state = new_state;
691 }
692
693 int runstate_is_running(void)
694 {
695 return runstate_check(RUN_STATE_RUNNING);
696 }
697
698 bool runstate_needs_reset(void)
699 {
700 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
701 runstate_check(RUN_STATE_SHUTDOWN);
702 }
703
704 StatusInfo *qmp_query_status(Error **errp)
705 {
706 StatusInfo *info = g_malloc0(sizeof(*info));
707
708 info->running = runstate_is_running();
709 info->singlestep = singlestep;
710 info->status = current_run_state;
711
712 return info;
713 }
714
715 static bool qemu_vmstop_requested(RunState *r)
716 {
717 qemu_mutex_lock(&vmstop_lock);
718 *r = vmstop_requested;
719 vmstop_requested = RUN_STATE__MAX;
720 qemu_mutex_unlock(&vmstop_lock);
721 return *r < RUN_STATE__MAX;
722 }
723
724 void qemu_system_vmstop_request_prepare(void)
725 {
726 qemu_mutex_lock(&vmstop_lock);
727 }
728
729 void qemu_system_vmstop_request(RunState state)
730 {
731 vmstop_requested = state;
732 qemu_mutex_unlock(&vmstop_lock);
733 qemu_notify_event();
734 }
735
736 void vm_start(void)
737 {
738 RunState requested;
739
740 qemu_vmstop_requested(&requested);
741 if (runstate_is_running() && requested == RUN_STATE__MAX) {
742 return;
743 }
744
745 /* Ensure that a STOP/RESUME pair of events is emitted if a
746 * vmstop request was pending. The BLOCK_IO_ERROR event, for
747 * example, according to documentation is always followed by
748 * the STOP event.
749 */
750 if (runstate_is_running()) {
751 qapi_event_send_stop(&error_abort);
752 } else {
753 cpu_enable_ticks();
754 runstate_set(RUN_STATE_RUNNING);
755 vm_state_notify(1, RUN_STATE_RUNNING);
756 resume_all_vcpus();
757 }
758
759 qapi_event_send_resume(&error_abort);
760 }
761
762
763 /***********************************************************/
764 /* real time host monotonic timer */
765
766 static time_t qemu_time(void)
767 {
768 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
769 }
770
771 /***********************************************************/
772 /* host time/date access */
773 void qemu_get_timedate(struct tm *tm, int offset)
774 {
775 time_t ti = qemu_time();
776
777 ti += offset;
778 if (rtc_date_offset == -1) {
779 if (rtc_utc)
780 gmtime_r(&ti, tm);
781 else
782 localtime_r(&ti, tm);
783 } else {
784 ti -= rtc_date_offset;
785 gmtime_r(&ti, tm);
786 }
787 }
788
789 int qemu_timedate_diff(struct tm *tm)
790 {
791 time_t seconds;
792
793 if (rtc_date_offset == -1)
794 if (rtc_utc)
795 seconds = mktimegm(tm);
796 else {
797 struct tm tmp = *tm;
798 tmp.tm_isdst = -1; /* use timezone to figure it out */
799 seconds = mktime(&tmp);
800 }
801 else
802 seconds = mktimegm(tm) + rtc_date_offset;
803
804 return seconds - qemu_time();
805 }
806
807 static void configure_rtc_date_offset(const char *startdate, int legacy)
808 {
809 time_t rtc_start_date;
810 struct tm tm;
811
812 if (!strcmp(startdate, "now") && legacy) {
813 rtc_date_offset = -1;
814 } else {
815 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
816 &tm.tm_year,
817 &tm.tm_mon,
818 &tm.tm_mday,
819 &tm.tm_hour,
820 &tm.tm_min,
821 &tm.tm_sec) == 6) {
822 /* OK */
823 } else if (sscanf(startdate, "%d-%d-%d",
824 &tm.tm_year,
825 &tm.tm_mon,
826 &tm.tm_mday) == 3) {
827 tm.tm_hour = 0;
828 tm.tm_min = 0;
829 tm.tm_sec = 0;
830 } else {
831 goto date_fail;
832 }
833 tm.tm_year -= 1900;
834 tm.tm_mon--;
835 rtc_start_date = mktimegm(&tm);
836 if (rtc_start_date == -1) {
837 date_fail:
838 error_report("invalid date format");
839 error_printf("valid formats: "
840 "'2006-06-17T16:01:21' or '2006-06-17'\n");
841 exit(1);
842 }
843 rtc_date_offset = qemu_time() - rtc_start_date;
844 }
845 }
846
847 static void configure_rtc(QemuOpts *opts)
848 {
849 const char *value;
850
851 value = qemu_opt_get(opts, "base");
852 if (value) {
853 if (!strcmp(value, "utc")) {
854 rtc_utc = 1;
855 } else if (!strcmp(value, "localtime")) {
856 Error *blocker = NULL;
857 rtc_utc = 0;
858 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
859 "-rtc base=localtime");
860 replay_add_blocker(blocker);
861 } else {
862 configure_rtc_date_offset(value, 0);
863 }
864 }
865 value = qemu_opt_get(opts, "clock");
866 if (value) {
867 if (!strcmp(value, "host")) {
868 rtc_clock = QEMU_CLOCK_HOST;
869 } else if (!strcmp(value, "rt")) {
870 rtc_clock = QEMU_CLOCK_REALTIME;
871 } else if (!strcmp(value, "vm")) {
872 rtc_clock = QEMU_CLOCK_VIRTUAL;
873 } else {
874 error_report("invalid option value '%s'", value);
875 exit(1);
876 }
877 }
878 value = qemu_opt_get(opts, "driftfix");
879 if (value) {
880 if (!strcmp(value, "slew")) {
881 static GlobalProperty slew_lost_ticks[] = {
882 {
883 .driver = "mc146818rtc",
884 .property = "lost_tick_policy",
885 .value = "slew",
886 },
887 { /* end of list */ }
888 };
889
890 qdev_prop_register_global_list(slew_lost_ticks);
891 } else if (!strcmp(value, "none")) {
892 /* discard is default */
893 } else {
894 error_report("invalid option value '%s'", value);
895 exit(1);
896 }
897 }
898 }
899
900 /***********************************************************/
901 /* Bluetooth support */
902 static int nb_hcis;
903 static int cur_hci;
904 static struct HCIInfo *hci_table[MAX_NICS];
905
906 struct HCIInfo *qemu_next_hci(void)
907 {
908 if (cur_hci == nb_hcis)
909 return &null_hci;
910
911 return hci_table[cur_hci++];
912 }
913
914 static int bt_hci_parse(const char *str)
915 {
916 struct HCIInfo *hci;
917 bdaddr_t bdaddr;
918
919 if (nb_hcis >= MAX_NICS) {
920 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
921 return -1;
922 }
923
924 hci = hci_init(str);
925 if (!hci)
926 return -1;
927
928 bdaddr.b[0] = 0x52;
929 bdaddr.b[1] = 0x54;
930 bdaddr.b[2] = 0x00;
931 bdaddr.b[3] = 0x12;
932 bdaddr.b[4] = 0x34;
933 bdaddr.b[5] = 0x56 + nb_hcis;
934 hci->bdaddr_set(hci, bdaddr.b);
935
936 hci_table[nb_hcis++] = hci;
937
938 return 0;
939 }
940
941 static void bt_vhci_add(int vlan_id)
942 {
943 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
944
945 if (!vlan->slave)
946 error_report("warning: adding a VHCI to an empty scatternet %i",
947 vlan_id);
948
949 bt_vhci_init(bt_new_hci(vlan));
950 }
951
952 static struct bt_device_s *bt_device_add(const char *opt)
953 {
954 struct bt_scatternet_s *vlan;
955 int vlan_id = 0;
956 char *endp = strstr(opt, ",vlan=");
957 int len = (endp ? endp - opt : strlen(opt)) + 1;
958 char devname[10];
959
960 pstrcpy(devname, MIN(sizeof(devname), len), opt);
961
962 if (endp) {
963 vlan_id = strtol(endp + 6, &endp, 0);
964 if (*endp) {
965 error_report("unrecognised bluetooth vlan Id");
966 return 0;
967 }
968 }
969
970 vlan = qemu_find_bt_vlan(vlan_id);
971
972 if (!vlan->slave)
973 error_report("warning: adding a slave device to an empty scatternet %i",
974 vlan_id);
975
976 if (!strcmp(devname, "keyboard"))
977 return bt_keyboard_init(vlan);
978
979 error_report("unsupported bluetooth device '%s'", devname);
980 return 0;
981 }
982
983 static int bt_parse(const char *opt)
984 {
985 const char *endp, *p;
986 int vlan;
987
988 if (strstart(opt, "hci", &endp)) {
989 if (!*endp || *endp == ',') {
990 if (*endp)
991 if (!strstart(endp, ",vlan=", 0))
992 opt = endp + 1;
993
994 return bt_hci_parse(opt);
995 }
996 } else if (strstart(opt, "vhci", &endp)) {
997 if (!*endp || *endp == ',') {
998 if (*endp) {
999 if (strstart(endp, ",vlan=", &p)) {
1000 vlan = strtol(p, (char **) &endp, 0);
1001 if (*endp) {
1002 error_report("bad scatternet '%s'", p);
1003 return 1;
1004 }
1005 } else {
1006 error_report("bad parameter '%s'", endp + 1);
1007 return 1;
1008 }
1009 } else
1010 vlan = 0;
1011
1012 bt_vhci_add(vlan);
1013 return 0;
1014 }
1015 } else if (strstart(opt, "device:", &endp))
1016 return !bt_device_add(endp);
1017
1018 error_report("bad bluetooth parameter '%s'", opt);
1019 return 1;
1020 }
1021
1022 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1023 {
1024 /* FIXME: change this to true for 1.3 */
1025 if (qemu_opt_get_bool(opts, "enable", false)) {
1026 #ifdef CONFIG_SECCOMP
1027 if (seccomp_start() < 0) {
1028 error_report("failed to install seccomp syscall filter "
1029 "in the kernel");
1030 return -1;
1031 }
1032 #else
1033 error_report("seccomp support is disabled");
1034 return -1;
1035 #endif
1036 }
1037
1038 return 0;
1039 }
1040
1041 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1042 {
1043 const char *proc_name;
1044
1045 if (qemu_opt_get(opts, "debug-threads")) {
1046 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1047 }
1048 qemu_name = qemu_opt_get(opts, "guest");
1049
1050 proc_name = qemu_opt_get(opts, "process");
1051 if (proc_name) {
1052 os_set_proc_name(proc_name);
1053 }
1054
1055 return 0;
1056 }
1057
1058 bool defaults_enabled(void)
1059 {
1060 return has_defaults;
1061 }
1062
1063 bool usb_enabled(void)
1064 {
1065 return machine_usb(current_machine);
1066 }
1067
1068 #ifndef _WIN32
1069 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1070 {
1071 int fd, dupfd, flags;
1072 int64_t fdset_id;
1073 const char *fd_opaque = NULL;
1074 AddfdInfo *fdinfo;
1075
1076 fd = qemu_opt_get_number(opts, "fd", -1);
1077 fdset_id = qemu_opt_get_number(opts, "set", -1);
1078 fd_opaque = qemu_opt_get(opts, "opaque");
1079
1080 if (fd < 0) {
1081 error_report("fd option is required and must be non-negative");
1082 return -1;
1083 }
1084
1085 if (fd <= STDERR_FILENO) {
1086 error_report("fd cannot be a standard I/O stream");
1087 return -1;
1088 }
1089
1090 /*
1091 * All fds inherited across exec() necessarily have FD_CLOEXEC
1092 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1093 */
1094 flags = fcntl(fd, F_GETFD);
1095 if (flags == -1 || (flags & FD_CLOEXEC)) {
1096 error_report("fd is not valid or already in use");
1097 return -1;
1098 }
1099
1100 if (fdset_id < 0) {
1101 error_report("set option is required and must be non-negative");
1102 return -1;
1103 }
1104
1105 #ifdef F_DUPFD_CLOEXEC
1106 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1107 #else
1108 dupfd = dup(fd);
1109 if (dupfd != -1) {
1110 qemu_set_cloexec(dupfd);
1111 }
1112 #endif
1113 if (dupfd == -1) {
1114 error_report("error duplicating fd: %s", strerror(errno));
1115 return -1;
1116 }
1117
1118 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1119 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1120 &error_abort);
1121 g_free(fdinfo);
1122
1123 return 0;
1124 }
1125
1126 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1127 {
1128 int fd;
1129
1130 fd = qemu_opt_get_number(opts, "fd", -1);
1131 close(fd);
1132
1133 return 0;
1134 }
1135 #endif
1136
1137 /***********************************************************/
1138 /* QEMU Block devices */
1139
1140 #define HD_OPTS "media=disk"
1141 #define CDROM_OPTS "media=cdrom"
1142 #define FD_OPTS ""
1143 #define PFLASH_OPTS ""
1144 #define MTD_OPTS ""
1145 #define SD_OPTS ""
1146
1147 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1148 {
1149 BlockInterfaceType *block_default_type = opaque;
1150
1151 return drive_new(opts, *block_default_type) == NULL;
1152 }
1153
1154 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1155 {
1156 if (qemu_opt_get(opts, "snapshot") == NULL) {
1157 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1158 }
1159 return 0;
1160 }
1161
1162 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1163 int index, const char *optstr)
1164 {
1165 QemuOpts *opts;
1166 DriveInfo *dinfo;
1167
1168 if (!enable || drive_get_by_index(type, index)) {
1169 return;
1170 }
1171
1172 opts = drive_add(type, index, NULL, optstr);
1173 if (snapshot) {
1174 drive_enable_snapshot(NULL, opts, NULL);
1175 }
1176
1177 dinfo = drive_new(opts, type);
1178 if (!dinfo) {
1179 exit(1);
1180 }
1181 dinfo->is_default = true;
1182
1183 }
1184
1185 static QemuOptsList qemu_smp_opts = {
1186 .name = "smp-opts",
1187 .implied_opt_name = "cpus",
1188 .merge_lists = true,
1189 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1190 .desc = {
1191 {
1192 .name = "cpus",
1193 .type = QEMU_OPT_NUMBER,
1194 }, {
1195 .name = "sockets",
1196 .type = QEMU_OPT_NUMBER,
1197 }, {
1198 .name = "cores",
1199 .type = QEMU_OPT_NUMBER,
1200 }, {
1201 .name = "threads",
1202 .type = QEMU_OPT_NUMBER,
1203 }, {
1204 .name = "maxcpus",
1205 .type = QEMU_OPT_NUMBER,
1206 },
1207 { /*End of list */ }
1208 },
1209 };
1210
1211 static void smp_parse(QemuOpts *opts)
1212 {
1213 if (opts) {
1214
1215 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1216 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1217 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1218 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1219
1220 /* compute missing values, prefer sockets over cores over threads */
1221 if (cpus == 0 || sockets == 0) {
1222 sockets = sockets > 0 ? sockets : 1;
1223 cores = cores > 0 ? cores : 1;
1224 threads = threads > 0 ? threads : 1;
1225 if (cpus == 0) {
1226 cpus = cores * threads * sockets;
1227 }
1228 } else if (cores == 0) {
1229 threads = threads > 0 ? threads : 1;
1230 cores = cpus / (sockets * threads);
1231 } else if (threads == 0) {
1232 threads = cpus / (cores * sockets);
1233 } else if (sockets * cores * threads < cpus) {
1234 error_report("cpu topology: "
1235 "sockets (%u) * cores (%u) * threads (%u) < "
1236 "smp_cpus (%u)",
1237 sockets, cores, threads, cpus);
1238 exit(1);
1239 }
1240
1241 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1242 if (sockets * cores * threads > max_cpus) {
1243 error_report("cpu topology: "
1244 "sockets (%u) * cores (%u) * threads (%u) > "
1245 "maxcpus (%u)",
1246 sockets, cores, threads, max_cpus);
1247 exit(1);
1248 }
1249
1250 smp_cpus = cpus;
1251 smp_cores = cores > 0 ? cores : 1;
1252 smp_threads = threads > 0 ? threads : 1;
1253
1254 }
1255
1256 if (max_cpus == 0) {
1257 max_cpus = smp_cpus;
1258 }
1259
1260 if (max_cpus > MAX_CPUMASK_BITS) {
1261 error_report("unsupported number of maxcpus");
1262 exit(1);
1263 }
1264 if (max_cpus < smp_cpus) {
1265 error_report("maxcpus must be equal to or greater than smp");
1266 exit(1);
1267 }
1268
1269 if (smp_cpus > 1 || smp_cores > 1 || smp_threads > 1) {
1270 Error *blocker = NULL;
1271 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1272 replay_add_blocker(blocker);
1273 }
1274 }
1275
1276 static void realtime_init(void)
1277 {
1278 if (enable_mlock) {
1279 if (os_mlock() < 0) {
1280 error_report("locking memory failed");
1281 exit(1);
1282 }
1283 }
1284 }
1285
1286
1287 static void configure_msg(QemuOpts *opts)
1288 {
1289 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1290 }
1291
1292 /***********************************************************/
1293 /* Semihosting */
1294
1295 typedef struct SemihostingConfig {
1296 bool enabled;
1297 SemihostingTarget target;
1298 const char **argv;
1299 int argc;
1300 const char *cmdline; /* concatenated argv */
1301 } SemihostingConfig;
1302
1303 static SemihostingConfig semihosting;
1304
1305 bool semihosting_enabled(void)
1306 {
1307 return semihosting.enabled;
1308 }
1309
1310 SemihostingTarget semihosting_get_target(void)
1311 {
1312 return semihosting.target;
1313 }
1314
1315 const char *semihosting_get_arg(int i)
1316 {
1317 if (i >= semihosting.argc) {
1318 return NULL;
1319 }
1320 return semihosting.argv[i];
1321 }
1322
1323 int semihosting_get_argc(void)
1324 {
1325 return semihosting.argc;
1326 }
1327
1328 const char *semihosting_get_cmdline(void)
1329 {
1330 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1331 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1332 }
1333 return semihosting.cmdline;
1334 }
1335
1336 static int add_semihosting_arg(void *opaque,
1337 const char *name, const char *val,
1338 Error **errp)
1339 {
1340 SemihostingConfig *s = opaque;
1341 if (strcmp(name, "arg") == 0) {
1342 s->argc++;
1343 /* one extra element as g_strjoinv() expects NULL-terminated array */
1344 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1345 s->argv[s->argc - 1] = val;
1346 s->argv[s->argc] = NULL;
1347 }
1348 return 0;
1349 }
1350
1351 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1352 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1353 {
1354 char *cmd_token;
1355
1356 /* argv[0] */
1357 add_semihosting_arg(&semihosting, "arg", file, NULL);
1358
1359 /* split -append and initialize argv[1..n] */
1360 cmd_token = strtok(g_strdup(cmd), " ");
1361 while (cmd_token) {
1362 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1363 cmd_token = strtok(NULL, " ");
1364 }
1365 }
1366
1367 /* Now we still need this for compatibility with XEN. */
1368 bool has_igd_gfx_passthru;
1369 static void igd_gfx_passthru(void)
1370 {
1371 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1372 }
1373
1374 /***********************************************************/
1375 /* USB devices */
1376
1377 static int usb_device_add(const char *devname)
1378 {
1379 USBDevice *dev = NULL;
1380 #ifndef CONFIG_LINUX
1381 const char *p;
1382 #endif
1383
1384 if (!usb_enabled()) {
1385 return -1;
1386 }
1387
1388 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1389 dev = usbdevice_create(devname);
1390 if (dev)
1391 goto done;
1392
1393 /* the other ones */
1394 #ifndef CONFIG_LINUX
1395 /* only the linux version is qdev-ified, usb-bsd still needs this */
1396 if (strstart(devname, "host:", &p)) {
1397 dev = usb_host_device_open(usb_bus_find(-1), p);
1398 }
1399 #endif
1400 if (!dev)
1401 return -1;
1402
1403 done:
1404 return 0;
1405 }
1406
1407 static int usb_device_del(const char *devname)
1408 {
1409 int bus_num, addr;
1410 const char *p;
1411
1412 if (strstart(devname, "host:", &p)) {
1413 return -1;
1414 }
1415
1416 if (!usb_enabled()) {
1417 return -1;
1418 }
1419
1420 p = strchr(devname, '.');
1421 if (!p)
1422 return -1;
1423 bus_num = strtoul(devname, NULL, 0);
1424 addr = strtoul(p + 1, NULL, 0);
1425
1426 return usb_device_delete_addr(bus_num, addr);
1427 }
1428
1429 static int usb_parse(const char *cmdline)
1430 {
1431 int r;
1432 r = usb_device_add(cmdline);
1433 if (r < 0) {
1434 error_report("could not add USB device '%s'", cmdline);
1435 }
1436 return r;
1437 }
1438
1439 void hmp_usb_add(Monitor *mon, const QDict *qdict)
1440 {
1441 const char *devname = qdict_get_str(qdict, "devname");
1442 if (usb_device_add(devname) < 0) {
1443 error_report("could not add USB device '%s'", devname);
1444 }
1445 }
1446
1447 void hmp_usb_del(Monitor *mon, const QDict *qdict)
1448 {
1449 const char *devname = qdict_get_str(qdict, "devname");
1450 if (usb_device_del(devname) < 0) {
1451 error_report("could not delete USB device '%s'", devname);
1452 }
1453 }
1454
1455 /***********************************************************/
1456 /* machine registration */
1457
1458 MachineState *current_machine;
1459
1460 static MachineClass *find_machine(const char *name)
1461 {
1462 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1463 MachineClass *mc = NULL;
1464
1465 for (el = machines; el; el = el->next) {
1466 MachineClass *temp = el->data;
1467
1468 if (!strcmp(temp->name, name)) {
1469 mc = temp;
1470 break;
1471 }
1472 if (temp->alias &&
1473 !strcmp(temp->alias, name)) {
1474 mc = temp;
1475 break;
1476 }
1477 }
1478
1479 g_slist_free(machines);
1480 return mc;
1481 }
1482
1483 MachineClass *find_default_machine(void)
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 (temp->is_default) {
1492 mc = temp;
1493 break;
1494 }
1495 }
1496
1497 g_slist_free(machines);
1498 return mc;
1499 }
1500
1501 MachineInfoList *qmp_query_machines(Error **errp)
1502 {
1503 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1504 MachineInfoList *mach_list = NULL;
1505
1506 for (el = machines; el; el = el->next) {
1507 MachineClass *mc = el->data;
1508 MachineInfoList *entry;
1509 MachineInfo *info;
1510
1511 info = g_malloc0(sizeof(*info));
1512 if (mc->is_default) {
1513 info->has_is_default = true;
1514 info->is_default = true;
1515 }
1516
1517 if (mc->alias) {
1518 info->has_alias = true;
1519 info->alias = g_strdup(mc->alias);
1520 }
1521
1522 info->name = g_strdup(mc->name);
1523 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1524
1525 entry = g_malloc0(sizeof(*entry));
1526 entry->value = info;
1527 entry->next = mach_list;
1528 mach_list = entry;
1529 }
1530
1531 g_slist_free(machines);
1532 return mach_list;
1533 }
1534
1535 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1536 {
1537 ObjectProperty *prop;
1538 ObjectPropertyIterator *iter;
1539
1540 if (!qemu_opt_has_help_opt(opts)) {
1541 return 0;
1542 }
1543
1544 iter = object_property_iter_init(OBJECT(machine));
1545 while ((prop = object_property_iter_next(iter))) {
1546 if (!prop->set) {
1547 continue;
1548 }
1549
1550 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1551 prop->name, prop->type);
1552 if (prop->description) {
1553 error_printf(" (%s)\n", prop->description);
1554 } else {
1555 error_printf("\n");
1556 }
1557 }
1558 object_property_iter_free(iter);
1559
1560 return 1;
1561 }
1562
1563 /***********************************************************/
1564 /* main execution loop */
1565
1566 struct vm_change_state_entry {
1567 VMChangeStateHandler *cb;
1568 void *opaque;
1569 QLIST_ENTRY (vm_change_state_entry) entries;
1570 };
1571
1572 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1573
1574 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1575 void *opaque)
1576 {
1577 VMChangeStateEntry *e;
1578
1579 e = g_malloc0(sizeof (*e));
1580
1581 e->cb = cb;
1582 e->opaque = opaque;
1583 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1584 return e;
1585 }
1586
1587 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1588 {
1589 QLIST_REMOVE (e, entries);
1590 g_free (e);
1591 }
1592
1593 void vm_state_notify(int running, RunState state)
1594 {
1595 VMChangeStateEntry *e, *next;
1596
1597 trace_vm_state_notify(running, state);
1598
1599 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1600 e->cb(e->opaque, running, state);
1601 }
1602 }
1603
1604 /* reset/shutdown handler */
1605
1606 typedef struct QEMUResetEntry {
1607 QTAILQ_ENTRY(QEMUResetEntry) entry;
1608 QEMUResetHandler *func;
1609 void *opaque;
1610 } QEMUResetEntry;
1611
1612 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1613 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1614 static int reset_requested;
1615 static int shutdown_requested, shutdown_signal = -1;
1616 static pid_t shutdown_pid;
1617 static int powerdown_requested;
1618 static int debug_requested;
1619 static int suspend_requested;
1620 static WakeupReason wakeup_reason;
1621 static NotifierList powerdown_notifiers =
1622 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1623 static NotifierList suspend_notifiers =
1624 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1625 static NotifierList wakeup_notifiers =
1626 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1627 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1628
1629 int qemu_shutdown_requested_get(void)
1630 {
1631 return shutdown_requested;
1632 }
1633
1634 int qemu_reset_requested_get(void)
1635 {
1636 return reset_requested;
1637 }
1638
1639 static int qemu_shutdown_requested(void)
1640 {
1641 return atomic_xchg(&shutdown_requested, 0);
1642 }
1643
1644 static void qemu_kill_report(void)
1645 {
1646 if (!qtest_driver() && shutdown_signal != -1) {
1647 if (shutdown_pid == 0) {
1648 /* This happens for eg ^C at the terminal, so it's worth
1649 * avoiding printing an odd message in that case.
1650 */
1651 error_report("terminating on signal %d", shutdown_signal);
1652 } else {
1653 error_report("terminating on signal %d from pid " FMT_pid,
1654 shutdown_signal, shutdown_pid);
1655 }
1656 shutdown_signal = -1;
1657 }
1658 }
1659
1660 static int qemu_reset_requested(void)
1661 {
1662 int r = reset_requested;
1663 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1664 reset_requested = 0;
1665 return r;
1666 }
1667 return false;
1668 }
1669
1670 static int qemu_suspend_requested(void)
1671 {
1672 int r = suspend_requested;
1673 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1674 suspend_requested = 0;
1675 return r;
1676 }
1677 return false;
1678 }
1679
1680 static WakeupReason qemu_wakeup_requested(void)
1681 {
1682 return wakeup_reason;
1683 }
1684
1685 static int qemu_powerdown_requested(void)
1686 {
1687 int r = powerdown_requested;
1688 powerdown_requested = 0;
1689 return r;
1690 }
1691
1692 static int qemu_debug_requested(void)
1693 {
1694 int r = debug_requested;
1695 debug_requested = 0;
1696 return r;
1697 }
1698
1699 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1700 {
1701 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1702
1703 re->func = func;
1704 re->opaque = opaque;
1705 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1706 }
1707
1708 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1709 {
1710 QEMUResetEntry *re;
1711
1712 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1713 if (re->func == func && re->opaque == opaque) {
1714 QTAILQ_REMOVE(&reset_handlers, re, entry);
1715 g_free(re);
1716 return;
1717 }
1718 }
1719 }
1720
1721 void qemu_devices_reset(void)
1722 {
1723 QEMUResetEntry *re, *nre;
1724
1725 /* reset all devices */
1726 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1727 re->func(re->opaque);
1728 }
1729 }
1730
1731 void qemu_system_reset(bool report)
1732 {
1733 MachineClass *mc;
1734
1735 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1736
1737 if (mc && mc->reset) {
1738 mc->reset();
1739 } else {
1740 qemu_devices_reset();
1741 }
1742 if (report) {
1743 qapi_event_send_reset(&error_abort);
1744 }
1745 cpu_synchronize_all_post_reset();
1746 }
1747
1748 void qemu_system_guest_panicked(void)
1749 {
1750 if (current_cpu) {
1751 current_cpu->crash_occurred = true;
1752 }
1753 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, &error_abort);
1754 vm_stop(RUN_STATE_GUEST_PANICKED);
1755 }
1756
1757 void qemu_system_reset_request(void)
1758 {
1759 if (no_reboot) {
1760 shutdown_requested = 1;
1761 } else {
1762 reset_requested = 1;
1763 }
1764 cpu_stop_current();
1765 qemu_notify_event();
1766 }
1767
1768 static void qemu_system_suspend(void)
1769 {
1770 pause_all_vcpus();
1771 notifier_list_notify(&suspend_notifiers, NULL);
1772 runstate_set(RUN_STATE_SUSPENDED);
1773 qapi_event_send_suspend(&error_abort);
1774 }
1775
1776 void qemu_system_suspend_request(void)
1777 {
1778 if (runstate_check(RUN_STATE_SUSPENDED)) {
1779 return;
1780 }
1781 suspend_requested = 1;
1782 cpu_stop_current();
1783 qemu_notify_event();
1784 }
1785
1786 void qemu_register_suspend_notifier(Notifier *notifier)
1787 {
1788 notifier_list_add(&suspend_notifiers, notifier);
1789 }
1790
1791 void qemu_system_wakeup_request(WakeupReason reason)
1792 {
1793 trace_system_wakeup_request(reason);
1794
1795 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1796 return;
1797 }
1798 if (!(wakeup_reason_mask & (1 << reason))) {
1799 return;
1800 }
1801 runstate_set(RUN_STATE_RUNNING);
1802 wakeup_reason = reason;
1803 qemu_notify_event();
1804 }
1805
1806 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1807 {
1808 if (enabled) {
1809 wakeup_reason_mask |= (1 << reason);
1810 } else {
1811 wakeup_reason_mask &= ~(1 << reason);
1812 }
1813 }
1814
1815 void qemu_register_wakeup_notifier(Notifier *notifier)
1816 {
1817 notifier_list_add(&wakeup_notifiers, notifier);
1818 }
1819
1820 void qemu_system_killed(int signal, pid_t pid)
1821 {
1822 shutdown_signal = signal;
1823 shutdown_pid = pid;
1824 no_shutdown = 0;
1825
1826 /* Cannot call qemu_system_shutdown_request directly because
1827 * we are in a signal handler.
1828 */
1829 shutdown_requested = 1;
1830 qemu_notify_event();
1831 }
1832
1833 void qemu_system_shutdown_request(void)
1834 {
1835 trace_qemu_system_shutdown_request();
1836 replay_shutdown_request();
1837 shutdown_requested = 1;
1838 qemu_notify_event();
1839 }
1840
1841 static void qemu_system_powerdown(void)
1842 {
1843 qapi_event_send_powerdown(&error_abort);
1844 notifier_list_notify(&powerdown_notifiers, NULL);
1845 }
1846
1847 void qemu_system_powerdown_request(void)
1848 {
1849 trace_qemu_system_powerdown_request();
1850 powerdown_requested = 1;
1851 qemu_notify_event();
1852 }
1853
1854 void qemu_register_powerdown_notifier(Notifier *notifier)
1855 {
1856 notifier_list_add(&powerdown_notifiers, notifier);
1857 }
1858
1859 void qemu_system_debug_request(void)
1860 {
1861 debug_requested = 1;
1862 qemu_notify_event();
1863 }
1864
1865 static bool main_loop_should_exit(void)
1866 {
1867 RunState r;
1868 if (qemu_debug_requested()) {
1869 vm_stop(RUN_STATE_DEBUG);
1870 }
1871 if (qemu_suspend_requested()) {
1872 qemu_system_suspend();
1873 }
1874 if (qemu_shutdown_requested()) {
1875 qemu_kill_report();
1876 qapi_event_send_shutdown(&error_abort);
1877 if (no_shutdown) {
1878 vm_stop(RUN_STATE_SHUTDOWN);
1879 } else {
1880 return true;
1881 }
1882 }
1883 if (qemu_reset_requested()) {
1884 pause_all_vcpus();
1885 cpu_synchronize_all_states();
1886 qemu_system_reset(VMRESET_REPORT);
1887 resume_all_vcpus();
1888 if (runstate_needs_reset()) {
1889 runstate_set(RUN_STATE_PAUSED);
1890 }
1891 }
1892 if (qemu_wakeup_requested()) {
1893 pause_all_vcpus();
1894 cpu_synchronize_all_states();
1895 qemu_system_reset(VMRESET_SILENT);
1896 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1897 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1898 resume_all_vcpus();
1899 qapi_event_send_wakeup(&error_abort);
1900 }
1901 if (qemu_powerdown_requested()) {
1902 qemu_system_powerdown();
1903 }
1904 if (qemu_vmstop_requested(&r)) {
1905 vm_stop(r);
1906 }
1907 return false;
1908 }
1909
1910 static void main_loop(void)
1911 {
1912 bool nonblocking;
1913 int last_io = 0;
1914 #ifdef CONFIG_PROFILER
1915 int64_t ti;
1916 #endif
1917 do {
1918 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1919 #ifdef CONFIG_PROFILER
1920 ti = profile_getclock();
1921 #endif
1922 last_io = main_loop_wait(nonblocking);
1923 #ifdef CONFIG_PROFILER
1924 dev_time += profile_getclock() - ti;
1925 #endif
1926 } while (!main_loop_should_exit());
1927 }
1928
1929 static void version(void)
1930 {
1931 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1932 }
1933
1934 static void help(int exitcode)
1935 {
1936 version();
1937 printf("usage: %s [options] [disk_image]\n\n"
1938 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1939 error_get_progname());
1940
1941 #define QEMU_OPTIONS_GENERATE_HELP
1942 #include "qemu-options-wrapper.h"
1943
1944 printf("\nDuring emulation, the following keys are useful:\n"
1945 "ctrl-alt-f toggle full screen\n"
1946 "ctrl-alt-n switch to virtual console 'n'\n"
1947 "ctrl-alt toggle mouse and keyboard grab\n"
1948 "\n"
1949 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1950
1951 exit(exitcode);
1952 }
1953
1954 #define HAS_ARG 0x0001
1955
1956 typedef struct QEMUOption {
1957 const char *name;
1958 int flags;
1959 int index;
1960 uint32_t arch_mask;
1961 } QEMUOption;
1962
1963 static const QEMUOption qemu_options[] = {
1964 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1965 #define QEMU_OPTIONS_GENERATE_OPTIONS
1966 #include "qemu-options-wrapper.h"
1967 { NULL },
1968 };
1969
1970 static bool vga_available(void)
1971 {
1972 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
1973 }
1974
1975 static bool cirrus_vga_available(void)
1976 {
1977 return object_class_by_name("cirrus-vga")
1978 || object_class_by_name("isa-cirrus-vga");
1979 }
1980
1981 static bool vmware_vga_available(void)
1982 {
1983 return object_class_by_name("vmware-svga");
1984 }
1985
1986 static bool qxl_vga_available(void)
1987 {
1988 return object_class_by_name("qxl-vga");
1989 }
1990
1991 static bool tcx_vga_available(void)
1992 {
1993 return object_class_by_name("SUNW,tcx");
1994 }
1995
1996 static bool cg3_vga_available(void)
1997 {
1998 return object_class_by_name("cgthree");
1999 }
2000
2001 static bool virtio_vga_available(void)
2002 {
2003 return object_class_by_name("virtio-vga");
2004 }
2005
2006 static void select_vgahw (const char *p)
2007 {
2008 const char *opts;
2009
2010 assert(vga_interface_type == VGA_NONE);
2011 if (strstart(p, "std", &opts)) {
2012 if (vga_available()) {
2013 vga_interface_type = VGA_STD;
2014 } else {
2015 error_report("standard VGA not available");
2016 exit(0);
2017 }
2018 } else if (strstart(p, "cirrus", &opts)) {
2019 if (cirrus_vga_available()) {
2020 vga_interface_type = VGA_CIRRUS;
2021 } else {
2022 error_report("Cirrus VGA not available");
2023 exit(0);
2024 }
2025 } else if (strstart(p, "vmware", &opts)) {
2026 if (vmware_vga_available()) {
2027 vga_interface_type = VGA_VMWARE;
2028 } else {
2029 error_report("VMWare SVGA not available");
2030 exit(0);
2031 }
2032 } else if (strstart(p, "virtio", &opts)) {
2033 if (virtio_vga_available()) {
2034 vga_interface_type = VGA_VIRTIO;
2035 } else {
2036 error_report("Virtio VGA not available");
2037 exit(0);
2038 }
2039 } else if (strstart(p, "xenfb", &opts)) {
2040 vga_interface_type = VGA_XENFB;
2041 } else if (strstart(p, "qxl", &opts)) {
2042 if (qxl_vga_available()) {
2043 vga_interface_type = VGA_QXL;
2044 } else {
2045 error_report("QXL VGA not available");
2046 exit(0);
2047 }
2048 } else if (strstart(p, "tcx", &opts)) {
2049 if (tcx_vga_available()) {
2050 vga_interface_type = VGA_TCX;
2051 } else {
2052 error_report("TCX framebuffer not available");
2053 exit(0);
2054 }
2055 } else if (strstart(p, "cg3", &opts)) {
2056 if (cg3_vga_available()) {
2057 vga_interface_type = VGA_CG3;
2058 } else {
2059 error_report("CG3 framebuffer not available");
2060 exit(0);
2061 }
2062 } else if (!strstart(p, "none", &opts)) {
2063 invalid_vga:
2064 error_report("unknown vga type: %s", p);
2065 exit(1);
2066 }
2067 while (*opts) {
2068 const char *nextopt;
2069
2070 if (strstart(opts, ",retrace=", &nextopt)) {
2071 opts = nextopt;
2072 if (strstart(opts, "dumb", &nextopt))
2073 vga_retrace_method = VGA_RETRACE_DUMB;
2074 else if (strstart(opts, "precise", &nextopt))
2075 vga_retrace_method = VGA_RETRACE_PRECISE;
2076 else goto invalid_vga;
2077 } else goto invalid_vga;
2078 opts = nextopt;
2079 }
2080 }
2081
2082 static DisplayType select_display(const char *p)
2083 {
2084 const char *opts;
2085 DisplayType display = DT_DEFAULT;
2086
2087 if (strstart(p, "sdl", &opts)) {
2088 #ifdef CONFIG_SDL
2089 display = DT_SDL;
2090 while (*opts) {
2091 const char *nextopt;
2092
2093 if (strstart(opts, ",frame=", &nextopt)) {
2094 opts = nextopt;
2095 if (strstart(opts, "on", &nextopt)) {
2096 no_frame = 0;
2097 } else if (strstart(opts, "off", &nextopt)) {
2098 no_frame = 1;
2099 } else {
2100 goto invalid_sdl_args;
2101 }
2102 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2103 opts = nextopt;
2104 if (strstart(opts, "on", &nextopt)) {
2105 alt_grab = 1;
2106 } else if (strstart(opts, "off", &nextopt)) {
2107 alt_grab = 0;
2108 } else {
2109 goto invalid_sdl_args;
2110 }
2111 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2112 opts = nextopt;
2113 if (strstart(opts, "on", &nextopt)) {
2114 ctrl_grab = 1;
2115 } else if (strstart(opts, "off", &nextopt)) {
2116 ctrl_grab = 0;
2117 } else {
2118 goto invalid_sdl_args;
2119 }
2120 } else if (strstart(opts, ",window_close=", &nextopt)) {
2121 opts = nextopt;
2122 if (strstart(opts, "on", &nextopt)) {
2123 no_quit = 0;
2124 } else if (strstart(opts, "off", &nextopt)) {
2125 no_quit = 1;
2126 } else {
2127 goto invalid_sdl_args;
2128 }
2129 } else if (strstart(opts, ",gl=", &nextopt)) {
2130 opts = nextopt;
2131 if (strstart(opts, "on", &nextopt)) {
2132 request_opengl = 1;
2133 } else if (strstart(opts, "off", &nextopt)) {
2134 request_opengl = 0;
2135 } else {
2136 goto invalid_sdl_args;
2137 }
2138 } else {
2139 invalid_sdl_args:
2140 error_report("invalid SDL option string");
2141 exit(1);
2142 }
2143 opts = nextopt;
2144 }
2145 #else
2146 error_report("SDL support is disabled");
2147 exit(1);
2148 #endif
2149 } else if (strstart(p, "vnc", &opts)) {
2150 #ifdef CONFIG_VNC
2151 if (*opts == '=') {
2152 Error *err = NULL;
2153 if (vnc_parse(opts + 1, &err) == NULL) {
2154 error_report_err(err);
2155 exit(1);
2156 }
2157 } else {
2158 error_report("VNC requires a display argument vnc=<display>");
2159 exit(1);
2160 }
2161 #else
2162 error_report("VNC support is disabled");
2163 exit(1);
2164 #endif
2165 } else if (strstart(p, "curses", &opts)) {
2166 #ifdef CONFIG_CURSES
2167 display = DT_CURSES;
2168 #else
2169 error_report("curses support is disabled");
2170 exit(1);
2171 #endif
2172 } else if (strstart(p, "gtk", &opts)) {
2173 #ifdef CONFIG_GTK
2174 display = DT_GTK;
2175 while (*opts) {
2176 const char *nextopt;
2177
2178 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2179 opts = nextopt;
2180 if (strstart(opts, "on", &nextopt)) {
2181 grab_on_hover = true;
2182 } else if (strstart(opts, "off", &nextopt)) {
2183 grab_on_hover = false;
2184 } else {
2185 goto invalid_gtk_args;
2186 }
2187 } else if (strstart(opts, ",gl=", &nextopt)) {
2188 opts = nextopt;
2189 if (strstart(opts, "on", &nextopt)) {
2190 request_opengl = 1;
2191 } else if (strstart(opts, "off", &nextopt)) {
2192 request_opengl = 0;
2193 } else {
2194 goto invalid_gtk_args;
2195 }
2196 } else {
2197 invalid_gtk_args:
2198 error_report("invalid GTK option string");
2199 exit(1);
2200 }
2201 opts = nextopt;
2202 }
2203 #else
2204 error_report("GTK support is disabled");
2205 exit(1);
2206 #endif
2207 } else if (strstart(p, "none", &opts)) {
2208 display = DT_NONE;
2209 } else {
2210 error_report("unknown display type");
2211 exit(1);
2212 }
2213
2214 return display;
2215 }
2216
2217 static int balloon_parse(const char *arg)
2218 {
2219 QemuOpts *opts;
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 inline bool nonempty_str(const char *str)
2279 {
2280 return str && *str;
2281 }
2282
2283 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2284 {
2285 gchar *buf;
2286 size_t size;
2287 const char *name, *file, *str;
2288
2289 if (opaque == NULL) {
2290 error_report("fw_cfg device not available");
2291 return -1;
2292 }
2293 name = qemu_opt_get(opts, "name");
2294 file = qemu_opt_get(opts, "file");
2295 str = qemu_opt_get(opts, "string");
2296
2297 /* we need name and either a file or the content string */
2298 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2299 error_report("invalid argument(s)");
2300 return -1;
2301 }
2302 if (nonempty_str(file) && nonempty_str(str)) {
2303 error_report("file and string are mutually exclusive");
2304 return -1;
2305 }
2306 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2307 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2308 return -1;
2309 }
2310 if (strncmp(name, "opt/", 4) != 0) {
2311 error_report("warning: externally provided fw_cfg item names "
2312 "should be prefixed with \"opt/\"");
2313 }
2314 if (nonempty_str(str)) {
2315 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2316 buf = g_memdup(str, size);
2317 } else {
2318 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2319 error_report("can't load %s", file);
2320 return -1;
2321 }
2322 }
2323 fw_cfg_add_file((FWCfgState *)opaque, name, buf, size);
2324 return 0;
2325 }
2326
2327 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2328 {
2329 return qdev_device_help(opts);
2330 }
2331
2332 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2333 {
2334 Error *err = NULL;
2335 DeviceState *dev;
2336
2337 dev = qdev_device_add(opts, &err);
2338 if (!dev) {
2339 error_report_err(err);
2340 return -1;
2341 }
2342 object_unref(OBJECT(dev));
2343 return 0;
2344 }
2345
2346 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2347 {
2348 Error *local_err = NULL;
2349
2350 qemu_chr_new_from_opts(opts, NULL, &local_err);
2351 if (local_err) {
2352 error_report_err(local_err);
2353 return -1;
2354 }
2355 return 0;
2356 }
2357
2358 #ifdef CONFIG_VIRTFS
2359 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2360 {
2361 int ret;
2362 ret = qemu_fsdev_add(opts);
2363
2364 return ret;
2365 }
2366 #endif
2367
2368 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2369 {
2370 CharDriverState *chr;
2371 const char *chardev;
2372 const char *mode;
2373 int flags;
2374
2375 mode = qemu_opt_get(opts, "mode");
2376 if (mode == NULL) {
2377 mode = "readline";
2378 }
2379 if (strcmp(mode, "readline") == 0) {
2380 flags = MONITOR_USE_READLINE;
2381 } else if (strcmp(mode, "control") == 0) {
2382 flags = MONITOR_USE_CONTROL;
2383 } else {
2384 error_report("unknown monitor mode \"%s\"", mode);
2385 exit(1);
2386 }
2387
2388 if (qemu_opt_get_bool(opts, "pretty", 0))
2389 flags |= MONITOR_USE_PRETTY;
2390
2391 if (qemu_opt_get_bool(opts, "default", 0))
2392 flags |= MONITOR_IS_DEFAULT;
2393
2394 chardev = qemu_opt_get(opts, "chardev");
2395 chr = qemu_chr_find(chardev);
2396 if (chr == NULL) {
2397 error_report("chardev \"%s\" not found", chardev);
2398 exit(1);
2399 }
2400
2401 qemu_chr_fe_claim_no_fail(chr);
2402 monitor_init(chr, flags);
2403 return 0;
2404 }
2405
2406 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2407 {
2408 static int monitor_device_index = 0;
2409 Error *local_err = NULL;
2410 QemuOpts *opts;
2411 const char *p;
2412 char label[32];
2413 int def = 0;
2414
2415 if (strstart(optarg, "chardev:", &p)) {
2416 snprintf(label, sizeof(label), "%s", p);
2417 } else {
2418 snprintf(label, sizeof(label), "compat_monitor%d",
2419 monitor_device_index);
2420 if (monitor_device_index == 0) {
2421 def = 1;
2422 }
2423 opts = qemu_chr_parse_compat(label, optarg);
2424 if (!opts) {
2425 error_report("parse error: %s", optarg);
2426 exit(1);
2427 }
2428 }
2429
2430 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &local_err);
2431 if (!opts) {
2432 error_report_err(local_err);
2433 exit(1);
2434 }
2435 qemu_opt_set(opts, "mode", mode, &error_abort);
2436 qemu_opt_set(opts, "chardev", label, &error_abort);
2437 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2438 if (def)
2439 qemu_opt_set(opts, "default", "on", &error_abort);
2440 monitor_device_index++;
2441 }
2442
2443 struct device_config {
2444 enum {
2445 DEV_USB, /* -usbdevice */
2446 DEV_BT, /* -bt */
2447 DEV_SERIAL, /* -serial */
2448 DEV_PARALLEL, /* -parallel */
2449 DEV_VIRTCON, /* -virtioconsole */
2450 DEV_DEBUGCON, /* -debugcon */
2451 DEV_GDB, /* -gdb, -s */
2452 DEV_SCLP, /* s390 sclp */
2453 } type;
2454 const char *cmdline;
2455 Location loc;
2456 QTAILQ_ENTRY(device_config) next;
2457 };
2458
2459 static QTAILQ_HEAD(, device_config) device_configs =
2460 QTAILQ_HEAD_INITIALIZER(device_configs);
2461
2462 static void add_device_config(int type, const char *cmdline)
2463 {
2464 struct device_config *conf;
2465
2466 conf = g_malloc0(sizeof(*conf));
2467 conf->type = type;
2468 conf->cmdline = cmdline;
2469 loc_save(&conf->loc);
2470 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2471 }
2472
2473 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2474 {
2475 struct device_config *conf;
2476 int rc;
2477
2478 QTAILQ_FOREACH(conf, &device_configs, next) {
2479 if (conf->type != type)
2480 continue;
2481 loc_push_restore(&conf->loc);
2482 rc = func(conf->cmdline);
2483 loc_pop(&conf->loc);
2484 if (rc) {
2485 return rc;
2486 }
2487 }
2488 return 0;
2489 }
2490
2491 static int serial_parse(const char *devname)
2492 {
2493 static int index = 0;
2494 char label[32];
2495
2496 if (strcmp(devname, "none") == 0)
2497 return 0;
2498 if (index == MAX_SERIAL_PORTS) {
2499 error_report("too many serial ports");
2500 exit(1);
2501 }
2502 snprintf(label, sizeof(label), "serial%d", index);
2503 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2504 if (!serial_hds[index]) {
2505 error_report("could not connect serial device"
2506 " to character backend '%s'", devname);
2507 return -1;
2508 }
2509 index++;
2510 return 0;
2511 }
2512
2513 static int parallel_parse(const char *devname)
2514 {
2515 static int index = 0;
2516 char label[32];
2517
2518 if (strcmp(devname, "none") == 0)
2519 return 0;
2520 if (index == MAX_PARALLEL_PORTS) {
2521 error_report("too many parallel ports");
2522 exit(1);
2523 }
2524 snprintf(label, sizeof(label), "parallel%d", index);
2525 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2526 if (!parallel_hds[index]) {
2527 error_report("could not connect parallel device"
2528 " to character backend '%s'", devname);
2529 return -1;
2530 }
2531 index++;
2532 return 0;
2533 }
2534
2535 static int virtcon_parse(const char *devname)
2536 {
2537 QemuOptsList *device = qemu_find_opts("device");
2538 static int index = 0;
2539 char label[32];
2540 QemuOpts *bus_opts, *dev_opts;
2541
2542 if (strcmp(devname, "none") == 0)
2543 return 0;
2544 if (index == MAX_VIRTIO_CONSOLES) {
2545 error_report("too many virtio consoles");
2546 exit(1);
2547 }
2548
2549 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2550 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2551
2552 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2553 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2554
2555 snprintf(label, sizeof(label), "virtcon%d", index);
2556 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2557 if (!virtcon_hds[index]) {
2558 error_report("could not connect virtio console"
2559 " to character backend '%s'", devname);
2560 return -1;
2561 }
2562 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2563
2564 index++;
2565 return 0;
2566 }
2567
2568 static int sclp_parse(const char *devname)
2569 {
2570 QemuOptsList *device = qemu_find_opts("device");
2571 static int index = 0;
2572 char label[32];
2573 QemuOpts *dev_opts;
2574
2575 if (strcmp(devname, "none") == 0) {
2576 return 0;
2577 }
2578 if (index == MAX_SCLP_CONSOLES) {
2579 error_report("too many sclp consoles");
2580 exit(1);
2581 }
2582
2583 assert(arch_type == QEMU_ARCH_S390X);
2584
2585 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2586 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2587
2588 snprintf(label, sizeof(label), "sclpcon%d", index);
2589 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2590 if (!sclp_hds[index]) {
2591 error_report("could not connect sclp console"
2592 " to character backend '%s'", devname);
2593 return -1;
2594 }
2595 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2596
2597 index++;
2598 return 0;
2599 }
2600
2601 static int debugcon_parse(const char *devname)
2602 {
2603 QemuOpts *opts;
2604
2605 if (!qemu_chr_new("debugcon", devname, NULL)) {
2606 exit(1);
2607 }
2608 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2609 if (!opts) {
2610 error_report("already have a debugcon device");
2611 exit(1);
2612 }
2613 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2614 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2615 return 0;
2616 }
2617
2618 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2619 {
2620 const MachineClass *mc1 = a, *mc2 = b;
2621 int res;
2622
2623 if (mc1->family == NULL) {
2624 if (mc2->family == NULL) {
2625 /* Compare standalone machine types against each other; they sort
2626 * in increasing order.
2627 */
2628 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2629 object_class_get_name(OBJECT_CLASS(mc2)));
2630 }
2631
2632 /* Standalone machine types sort after families. */
2633 return 1;
2634 }
2635
2636 if (mc2->family == NULL) {
2637 /* Families sort before standalone machine types. */
2638 return -1;
2639 }
2640
2641 /* Families sort between each other alphabetically increasingly. */
2642 res = strcmp(mc1->family, mc2->family);
2643 if (res != 0) {
2644 return res;
2645 }
2646
2647 /* Within the same family, machine types sort in decreasing order. */
2648 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2649 object_class_get_name(OBJECT_CLASS(mc1)));
2650 }
2651
2652 static MachineClass *machine_parse(const char *name)
2653 {
2654 MachineClass *mc = NULL;
2655 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2656
2657 if (name) {
2658 mc = find_machine(name);
2659 }
2660 if (mc) {
2661 g_slist_free(machines);
2662 return mc;
2663 }
2664 if (name && !is_help_option(name)) {
2665 error_report("unsupported machine type");
2666 error_printf("Use -machine help to list supported machines\n");
2667 } else {
2668 printf("Supported machines are:\n");
2669 machines = g_slist_sort(machines, machine_class_cmp);
2670 for (el = machines; el; el = el->next) {
2671 MachineClass *mc = el->data;
2672 if (mc->alias) {
2673 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2674 }
2675 printf("%-20s %s%s\n", mc->name, mc->desc,
2676 mc->is_default ? " (default)" : "");
2677 }
2678 }
2679
2680 g_slist_free(machines);
2681 exit(!name || !is_help_option(name));
2682 }
2683
2684 void qemu_add_exit_notifier(Notifier *notify)
2685 {
2686 notifier_list_add(&exit_notifiers, notify);
2687 }
2688
2689 void qemu_remove_exit_notifier(Notifier *notify)
2690 {
2691 notifier_remove(notify);
2692 }
2693
2694 static void qemu_run_exit_notifiers(void)
2695 {
2696 notifier_list_notify(&exit_notifiers, NULL);
2697 }
2698
2699 static bool machine_init_done;
2700
2701 void qemu_add_machine_init_done_notifier(Notifier *notify)
2702 {
2703 notifier_list_add(&machine_init_done_notifiers, notify);
2704 if (machine_init_done) {
2705 notify->notify(notify, NULL);
2706 }
2707 }
2708
2709 static void qemu_run_machine_init_done_notifiers(void)
2710 {
2711 notifier_list_notify(&machine_init_done_notifiers, NULL);
2712 machine_init_done = true;
2713 }
2714
2715 static const QEMUOption *lookup_opt(int argc, char **argv,
2716 const char **poptarg, int *poptind)
2717 {
2718 const QEMUOption *popt;
2719 int optind = *poptind;
2720 char *r = argv[optind];
2721 const char *optarg;
2722
2723 loc_set_cmdline(argv, optind, 1);
2724 optind++;
2725 /* Treat --foo the same as -foo. */
2726 if (r[1] == '-')
2727 r++;
2728 popt = qemu_options;
2729 for(;;) {
2730 if (!popt->name) {
2731 error_report("invalid option");
2732 exit(1);
2733 }
2734 if (!strcmp(popt->name, r + 1))
2735 break;
2736 popt++;
2737 }
2738 if (popt->flags & HAS_ARG) {
2739 if (optind >= argc) {
2740 error_report("requires an argument");
2741 exit(1);
2742 }
2743 optarg = argv[optind++];
2744 loc_set_cmdline(argv, optind - 2, 2);
2745 } else {
2746 optarg = NULL;
2747 }
2748
2749 *poptarg = optarg;
2750 *poptind = optind;
2751
2752 return popt;
2753 }
2754
2755 static int machine_set_property(void *opaque,
2756 const char *name, const char *value,
2757 Error **errp)
2758 {
2759 Object *obj = OBJECT(opaque);
2760 Error *local_err = NULL;
2761 char *c, *qom_name;
2762
2763 if (strcmp(name, "type") == 0) {
2764 return 0;
2765 }
2766
2767 qom_name = g_strdup(name);
2768 c = qom_name;
2769 while (*c++) {
2770 if (*c == '_') {
2771 *c = '-';
2772 }
2773 }
2774
2775 object_property_parse(obj, value, qom_name, &local_err);
2776 g_free(qom_name);
2777
2778 if (local_err) {
2779 error_report_err(local_err);
2780 return -1;
2781 }
2782
2783 return 0;
2784 }
2785
2786
2787 /*
2788 * Initial object creation happens before all other
2789 * QEMU data types are created. The majority of objects
2790 * can be created at this point. The rng-egd object
2791 * cannot be created here, as it depends on the chardev
2792 * already existing.
2793 */
2794 static bool object_create_initial(const char *type)
2795 {
2796 if (g_str_equal(type, "rng-egd")) {
2797 return false;
2798 }
2799
2800 /*
2801 * return false for concrete netfilters since
2802 * they depend on netdevs already existing
2803 */
2804 if (g_str_equal(type, "filter-buffer") ||
2805 g_str_equal(type, "filter-dump")) {
2806 return false;
2807 }
2808
2809 return true;
2810 }
2811
2812
2813 /*
2814 * The remainder of object creation happens after the
2815 * creation of chardev, fsdev, net clients and device data types.
2816 */
2817 static bool object_create_delayed(const char *type)
2818 {
2819 return !object_create_initial(type);
2820 }
2821
2822
2823 static int object_create(void *opaque, QemuOpts *opts, Error **errp)
2824 {
2825 Error *err = NULL;
2826 char *type = NULL;
2827 char *id = NULL;
2828 void *dummy = NULL;
2829 OptsVisitor *ov;
2830 QDict *pdict;
2831 bool (*type_predicate)(const char *) = opaque;
2832
2833 ov = opts_visitor_new(opts);
2834 pdict = qemu_opts_to_qdict(opts, NULL);
2835
2836 visit_start_struct(opts_get_visitor(ov), &dummy, NULL, NULL, 0, &err);
2837 if (err) {
2838 goto out;
2839 }
2840
2841 qdict_del(pdict, "qom-type");
2842 visit_type_str(opts_get_visitor(ov), &type, "qom-type", &err);
2843 if (err) {
2844 goto out;
2845 }
2846 if (!type_predicate(type)) {
2847 goto out;
2848 }
2849
2850 qdict_del(pdict, "id");
2851 visit_type_str(opts_get_visitor(ov), &id, "id", &err);
2852 if (err) {
2853 goto out;
2854 }
2855
2856 object_add(type, id, pdict, opts_get_visitor(ov), &err);
2857 if (err) {
2858 goto out;
2859 }
2860 visit_end_struct(opts_get_visitor(ov), &err);
2861 if (err) {
2862 qmp_object_del(id, NULL);
2863 }
2864
2865 out:
2866 opts_visitor_cleanup(ov);
2867
2868 QDECREF(pdict);
2869 g_free(id);
2870 g_free(type);
2871 g_free(dummy);
2872 if (err) {
2873 error_report_err(err);
2874 return -1;
2875 }
2876 return 0;
2877 }
2878
2879 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2880 MachineClass *mc)
2881 {
2882 uint64_t sz;
2883 const char *mem_str;
2884 const char *maxmem_str, *slots_str;
2885 const ram_addr_t default_ram_size = mc->default_ram_size;
2886 QemuOpts *opts = qemu_find_opts_singleton("memory");
2887
2888 sz = 0;
2889 mem_str = qemu_opt_get(opts, "size");
2890 if (mem_str) {
2891 if (!*mem_str) {
2892 error_report("missing 'size' option value");
2893 exit(EXIT_FAILURE);
2894 }
2895
2896 sz = qemu_opt_get_size(opts, "size", ram_size);
2897
2898 /* Fix up legacy suffix-less format */
2899 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2900 uint64_t overflow_check = sz;
2901
2902 sz <<= 20;
2903 if ((sz >> 20) != overflow_check) {
2904 error_report("too large 'size' option value");
2905 exit(EXIT_FAILURE);
2906 }
2907 }
2908 }
2909
2910 /* backward compatibility behaviour for case "-m 0" */
2911 if (sz == 0) {
2912 sz = default_ram_size;
2913 }
2914
2915 sz = QEMU_ALIGN_UP(sz, 8192);
2916 ram_size = sz;
2917 if (ram_size != sz) {
2918 error_report("ram size too large");
2919 exit(EXIT_FAILURE);
2920 }
2921
2922 /* store value for the future use */
2923 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2924 *maxram_size = ram_size;
2925
2926 maxmem_str = qemu_opt_get(opts, "maxmem");
2927 slots_str = qemu_opt_get(opts, "slots");
2928 if (maxmem_str && slots_str) {
2929 uint64_t slots;
2930
2931 sz = qemu_opt_get_size(opts, "maxmem", 0);
2932 slots = qemu_opt_get_number(opts, "slots", 0);
2933 if (sz < ram_size) {
2934 error_report("invalid value of -m option maxmem: "
2935 "maximum memory size (0x%" PRIx64 ") must be at least "
2936 "the initial memory size (0x" RAM_ADDR_FMT ")",
2937 sz, ram_size);
2938 exit(EXIT_FAILURE);
2939 } else if (sz > ram_size) {
2940 if (!slots) {
2941 error_report("invalid value of -m option: maxmem was "
2942 "specified, but no hotplug slots were specified");
2943 exit(EXIT_FAILURE);
2944 }
2945 } else if (slots) {
2946 error_report("invalid value of -m option maxmem: "
2947 "memory slots were specified but maximum memory size "
2948 "(0x%" PRIx64 ") is equal to the initial memory size "
2949 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2950 exit(EXIT_FAILURE);
2951 }
2952
2953 *maxram_size = sz;
2954 *ram_slots = slots;
2955 } else if ((!maxmem_str && slots_str) ||
2956 (maxmem_str && !slots_str)) {
2957 error_report("invalid -m option value: missing "
2958 "'%s' option", slots_str ? "maxmem" : "slots");
2959 exit(EXIT_FAILURE);
2960 }
2961 }
2962
2963 int main(int argc, char **argv, char **envp)
2964 {
2965 int i;
2966 int snapshot, linux_boot;
2967 const char *initrd_filename;
2968 const char *kernel_filename, *kernel_cmdline;
2969 const char *boot_order = NULL;
2970 const char *boot_once = NULL;
2971 DisplayState *ds;
2972 int cyls, heads, secs, translation;
2973 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
2974 QemuOptsList *olist;
2975 int optind;
2976 const char *optarg;
2977 const char *loadvm = NULL;
2978 MachineClass *machine_class;
2979 const char *cpu_model;
2980 const char *vga_model = NULL;
2981 const char *qtest_chrdev = NULL;
2982 const char *qtest_log = NULL;
2983 const char *pid_file = NULL;
2984 const char *incoming = NULL;
2985 #ifdef CONFIG_VNC
2986 int show_vnc_port = 0;
2987 #endif
2988 bool defconfig = true;
2989 bool userconfig = true;
2990 const char *log_mask = NULL;
2991 const char *log_file = NULL;
2992 const char *trace_events = NULL;
2993 const char *trace_file = NULL;
2994 ram_addr_t maxram_size;
2995 uint64_t ram_slots = 0;
2996 FILE *vmstate_dump_file = NULL;
2997 Error *main_loop_err = NULL;
2998 Error *err = NULL;
2999
3000 qemu_init_cpu_loop();
3001 qemu_mutex_lock_iothread();
3002
3003 atexit(qemu_run_exit_notifiers);
3004 error_set_progname(argv[0]);
3005 qemu_init_exec_dir(argv[0]);
3006
3007 module_call_init(MODULE_INIT_QOM);
3008
3009 qemu_add_opts(&qemu_drive_opts);
3010 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3011 qemu_add_drive_opts(&qemu_common_drive_opts);
3012 qemu_add_drive_opts(&qemu_drive_opts);
3013 qemu_add_opts(&qemu_chardev_opts);
3014 qemu_add_opts(&qemu_device_opts);
3015 qemu_add_opts(&qemu_netdev_opts);
3016 qemu_add_opts(&qemu_net_opts);
3017 qemu_add_opts(&qemu_rtc_opts);
3018 qemu_add_opts(&qemu_global_opts);
3019 qemu_add_opts(&qemu_mon_opts);
3020 qemu_add_opts(&qemu_trace_opts);
3021 qemu_add_opts(&qemu_option_rom_opts);
3022 qemu_add_opts(&qemu_machine_opts);
3023 qemu_add_opts(&qemu_mem_opts);
3024 qemu_add_opts(&qemu_smp_opts);
3025 qemu_add_opts(&qemu_boot_opts);
3026 qemu_add_opts(&qemu_sandbox_opts);
3027 qemu_add_opts(&qemu_add_fd_opts);
3028 qemu_add_opts(&qemu_object_opts);
3029 qemu_add_opts(&qemu_tpmdev_opts);
3030 qemu_add_opts(&qemu_realtime_opts);
3031 qemu_add_opts(&qemu_msg_opts);
3032 qemu_add_opts(&qemu_name_opts);
3033 qemu_add_opts(&qemu_numa_opts);
3034 qemu_add_opts(&qemu_icount_opts);
3035 qemu_add_opts(&qemu_semihosting_config_opts);
3036 qemu_add_opts(&qemu_fw_cfg_opts);
3037
3038 runstate_init();
3039
3040 if (qcrypto_init(&err) < 0) {
3041 error_reportf_err(err, "cannot initialize crypto: ");
3042 exit(1);
3043 }
3044 rtc_clock = QEMU_CLOCK_HOST;
3045
3046 QLIST_INIT (&vm_change_state_head);
3047 os_setup_early_signal_handling();
3048
3049 module_call_init(MODULE_INIT_MACHINE);
3050 machine_class = find_default_machine();
3051 cpu_model = NULL;
3052 snapshot = 0;
3053 cyls = heads = secs = 0;
3054 translation = BIOS_ATA_TRANSLATION_AUTO;
3055
3056 nb_nics = 0;
3057
3058 bdrv_init_with_whitelist();
3059
3060 autostart = 1;
3061
3062 /* first pass of option parsing */
3063 optind = 1;
3064 while (optind < argc) {
3065 if (argv[optind][0] != '-') {
3066 /* disk image */
3067 optind++;
3068 } else {
3069 const QEMUOption *popt;
3070
3071 popt = lookup_opt(argc, argv, &optarg, &optind);
3072 switch (popt->index) {
3073 case QEMU_OPTION_nodefconfig:
3074 defconfig = false;
3075 break;
3076 case QEMU_OPTION_nouserconfig:
3077 userconfig = false;
3078 break;
3079 }
3080 }
3081 }
3082
3083 if (defconfig) {
3084 int ret;
3085 ret = qemu_read_default_config_files(userconfig);
3086 if (ret < 0) {
3087 exit(1);
3088 }
3089 }
3090
3091 /* second pass of option parsing */
3092 optind = 1;
3093 for(;;) {
3094 if (optind >= argc)
3095 break;
3096 if (argv[optind][0] != '-') {
3097 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3098 } else {
3099 const QEMUOption *popt;
3100
3101 popt = lookup_opt(argc, argv, &optarg, &optind);
3102 if (!(popt->arch_mask & arch_type)) {
3103 printf("Option %s not supported for this target\n", popt->name);
3104 exit(1);
3105 }
3106 switch(popt->index) {
3107 case QEMU_OPTION_no_kvm_irqchip: {
3108 olist = qemu_find_opts("machine");
3109 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3110 break;
3111 }
3112 case QEMU_OPTION_cpu:
3113 /* hw initialization will check this */
3114 cpu_model = optarg;
3115 break;
3116 case QEMU_OPTION_hda:
3117 {
3118 char buf[256];
3119 if (cyls == 0)
3120 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3121 else
3122 snprintf(buf, sizeof(buf),
3123 "%s,cyls=%d,heads=%d,secs=%d%s",
3124 HD_OPTS , cyls, heads, secs,
3125 translation == BIOS_ATA_TRANSLATION_LBA ?
3126 ",trans=lba" :
3127 translation == BIOS_ATA_TRANSLATION_NONE ?
3128 ",trans=none" : "");
3129 drive_add(IF_DEFAULT, 0, optarg, buf);
3130 break;
3131 }
3132 case QEMU_OPTION_hdb:
3133 case QEMU_OPTION_hdc:
3134 case QEMU_OPTION_hdd:
3135 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3136 HD_OPTS);
3137 break;
3138 case QEMU_OPTION_drive:
3139 if (drive_def(optarg) == NULL) {
3140 exit(1);
3141 }
3142 break;
3143 case QEMU_OPTION_set:
3144 if (qemu_set_option(optarg) != 0)
3145 exit(1);
3146 break;
3147 case QEMU_OPTION_global:
3148 if (qemu_global_option(optarg) != 0)
3149 exit(1);
3150 break;
3151 case QEMU_OPTION_mtdblock:
3152 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3153 break;
3154 case QEMU_OPTION_sd:
3155 drive_add(IF_SD, -1, optarg, SD_OPTS);
3156 break;
3157 case QEMU_OPTION_pflash:
3158 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3159 break;
3160 case QEMU_OPTION_snapshot:
3161 snapshot = 1;
3162 break;
3163 case QEMU_OPTION_hdachs:
3164 {
3165 const char *p;
3166 p = optarg;
3167 cyls = strtol(p, (char **)&p, 0);
3168 if (cyls < 1 || cyls > 16383)
3169 goto chs_fail;
3170 if (*p != ',')
3171 goto chs_fail;
3172 p++;
3173 heads = strtol(p, (char **)&p, 0);
3174 if (heads < 1 || heads > 16)
3175 goto chs_fail;
3176 if (*p != ',')
3177 goto chs_fail;
3178 p++;
3179 secs = strtol(p, (char **)&p, 0);
3180 if (secs < 1 || secs > 63)
3181 goto chs_fail;
3182 if (*p == ',') {
3183 p++;
3184 if (!strcmp(p, "large")) {
3185 translation = BIOS_ATA_TRANSLATION_LARGE;
3186 } else if (!strcmp(p, "rechs")) {
3187 translation = BIOS_ATA_TRANSLATION_RECHS;
3188 } else if (!strcmp(p, "none")) {
3189 translation = BIOS_ATA_TRANSLATION_NONE;
3190 } else if (!strcmp(p, "lba")) {
3191 translation = BIOS_ATA_TRANSLATION_LBA;
3192 } else if (!strcmp(p, "auto")) {
3193 translation = BIOS_ATA_TRANSLATION_AUTO;
3194 } else {
3195 goto chs_fail;
3196 }
3197 } else if (*p != '\0') {
3198 chs_fail:
3199 error_report("invalid physical CHS format");
3200 exit(1);
3201 }
3202 if (hda_opts != NULL) {
3203 qemu_opt_set_number(hda_opts, "cyls", cyls,
3204 &error_abort);
3205 qemu_opt_set_number(hda_opts, "heads", heads,
3206 &error_abort);
3207 qemu_opt_set_number(hda_opts, "secs", secs,
3208 &error_abort);
3209 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3210 qemu_opt_set(hda_opts, "trans", "large",
3211 &error_abort);
3212 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3213 qemu_opt_set(hda_opts, "trans", "rechs",
3214 &error_abort);
3215 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3216 qemu_opt_set(hda_opts, "trans", "lba",
3217 &error_abort);
3218 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3219 qemu_opt_set(hda_opts, "trans", "none",
3220 &error_abort);
3221 }
3222 }
3223 }
3224 break;
3225 case QEMU_OPTION_numa:
3226 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3227 optarg, true);
3228 if (!opts) {
3229 exit(1);
3230 }
3231 break;
3232 case QEMU_OPTION_display:
3233 display_type = select_display(optarg);
3234 break;
3235 case QEMU_OPTION_nographic:
3236 display_type = DT_NOGRAPHIC;
3237 break;
3238 case QEMU_OPTION_curses:
3239 #ifdef CONFIG_CURSES
3240 display_type = DT_CURSES;
3241 #else
3242 error_report("curses support is disabled");
3243 exit(1);
3244 #endif
3245 break;
3246 case QEMU_OPTION_portrait:
3247 graphic_rotate = 90;
3248 break;
3249 case QEMU_OPTION_rotate:
3250 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3251 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3252 graphic_rotate != 180 && graphic_rotate != 270) {
3253 error_report("only 90, 180, 270 deg rotation is available");
3254 exit(1);
3255 }
3256 break;
3257 case QEMU_OPTION_kernel:
3258 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3259 &error_abort);
3260 break;
3261 case QEMU_OPTION_initrd:
3262 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3263 &error_abort);
3264 break;
3265 case QEMU_OPTION_append:
3266 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3267 &error_abort);
3268 break;
3269 case QEMU_OPTION_dtb:
3270 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3271 &error_abort);
3272 break;
3273 case QEMU_OPTION_cdrom:
3274 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3275 break;
3276 case QEMU_OPTION_boot:
3277 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3278 optarg, true);
3279 if (!opts) {
3280 exit(1);
3281 }
3282 break;
3283 case QEMU_OPTION_fda:
3284 case QEMU_OPTION_fdb:
3285 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3286 optarg, FD_OPTS);
3287 break;
3288 case QEMU_OPTION_no_fd_bootchk:
3289 fd_bootchk = 0;
3290 break;
3291 case QEMU_OPTION_netdev:
3292 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3293 exit(1);
3294 }
3295 break;
3296 case QEMU_OPTION_net:
3297 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3298 exit(1);
3299 }
3300 break;
3301 #ifdef CONFIG_LIBISCSI
3302 case QEMU_OPTION_iscsi:
3303 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3304 optarg, false);
3305 if (!opts) {
3306 exit(1);
3307 }
3308 break;
3309 #endif
3310 #ifdef CONFIG_SLIRP
3311 case QEMU_OPTION_tftp:
3312 legacy_tftp_prefix = optarg;
3313 break;
3314 case QEMU_OPTION_bootp:
3315 legacy_bootp_filename = optarg;
3316 break;
3317 case QEMU_OPTION_redir:
3318 if (net_slirp_redir(optarg) < 0)
3319 exit(1);
3320 break;
3321 #endif
3322 case QEMU_OPTION_bt:
3323 add_device_config(DEV_BT, optarg);
3324 break;
3325 case QEMU_OPTION_audio_help:
3326 AUD_help ();
3327 exit (0);
3328 break;
3329 case QEMU_OPTION_soundhw:
3330 select_soundhw (optarg);
3331 break;
3332 case QEMU_OPTION_h:
3333 help(0);
3334 break;
3335 case QEMU_OPTION_version:
3336 version();
3337 exit(0);
3338 break;
3339 case QEMU_OPTION_m:
3340 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3341 optarg, true);
3342 if (!opts) {
3343 exit(EXIT_FAILURE);
3344 }
3345 break;
3346 #ifdef CONFIG_TPM
3347 case QEMU_OPTION_tpmdev:
3348 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3349 exit(1);
3350 }
3351 break;
3352 #endif
3353 case QEMU_OPTION_mempath:
3354 mem_path = optarg;
3355 break;
3356 case QEMU_OPTION_mem_prealloc:
3357 mem_prealloc = 1;
3358 break;
3359 case QEMU_OPTION_d:
3360 log_mask = optarg;
3361 break;
3362 case QEMU_OPTION_D:
3363 log_file = optarg;
3364 break;
3365 case QEMU_OPTION_s:
3366 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3367 break;
3368 case QEMU_OPTION_gdb:
3369 add_device_config(DEV_GDB, optarg);
3370 break;
3371 case QEMU_OPTION_L:
3372 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3373 data_dir[data_dir_idx++] = optarg;
3374 }
3375 break;
3376 case QEMU_OPTION_bios:
3377 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3378 &error_abort);
3379 break;
3380 case QEMU_OPTION_singlestep:
3381 singlestep = 1;
3382 break;
3383 case QEMU_OPTION_S:
3384 autostart = 0;
3385 break;
3386 case QEMU_OPTION_k:
3387 keyboard_layout = optarg;
3388 break;
3389 case QEMU_OPTION_localtime:
3390 rtc_utc = 0;
3391 break;
3392 case QEMU_OPTION_vga:
3393 vga_model = optarg;
3394 default_vga = 0;
3395 break;
3396 case QEMU_OPTION_g:
3397 {
3398 const char *p;
3399 int w, h, depth;
3400 p = optarg;
3401 w = strtol(p, (char **)&p, 10);
3402 if (w <= 0) {
3403 graphic_error:
3404 error_report("invalid resolution or depth");
3405 exit(1);
3406 }
3407 if (*p != 'x')
3408 goto graphic_error;
3409 p++;
3410 h = strtol(p, (char **)&p, 10);
3411 if (h <= 0)
3412 goto graphic_error;
3413 if (*p == 'x') {
3414 p++;
3415 depth = strtol(p, (char **)&p, 10);
3416 if (depth != 8 && depth != 15 && depth != 16 &&
3417 depth != 24 && depth != 32)
3418 goto graphic_error;
3419 } else if (*p == '\0') {
3420 depth = graphic_depth;
3421 } else {
3422 goto graphic_error;
3423 }
3424
3425 graphic_width = w;
3426 graphic_height = h;
3427 graphic_depth = depth;
3428 }
3429 break;
3430 case QEMU_OPTION_echr:
3431 {
3432 char *r;
3433 term_escape_char = strtol(optarg, &r, 0);
3434 if (r == optarg)
3435 printf("Bad argument to echr\n");
3436 break;
3437 }
3438 case QEMU_OPTION_monitor:
3439 default_monitor = 0;
3440 if (strncmp(optarg, "none", 4)) {
3441 monitor_parse(optarg, "readline", false);
3442 }
3443 break;
3444 case QEMU_OPTION_qmp:
3445 monitor_parse(optarg, "control", false);
3446 default_monitor = 0;
3447 break;
3448 case QEMU_OPTION_qmp_pretty:
3449 monitor_parse(optarg, "control", true);
3450 default_monitor = 0;
3451 break;
3452 case QEMU_OPTION_mon:
3453 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3454 true);
3455 if (!opts) {
3456 exit(1);
3457 }
3458 default_monitor = 0;
3459 break;
3460 case QEMU_OPTION_chardev:
3461 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3462 optarg, true);
3463 if (!opts) {
3464 exit(1);
3465 }
3466 break;
3467 case QEMU_OPTION_fsdev:
3468 olist = qemu_find_opts("fsdev");
3469 if (!olist) {
3470 error_report("fsdev support is disabled");
3471 exit(1);
3472 }
3473 opts = qemu_opts_parse_noisily(olist, optarg, true);
3474 if (!opts) {
3475 exit(1);
3476 }
3477 break;
3478 case QEMU_OPTION_virtfs: {
3479 QemuOpts *fsdev;
3480 QemuOpts *device;
3481 const char *writeout, *sock_fd, *socket;
3482
3483 olist = qemu_find_opts("virtfs");
3484 if (!olist) {
3485 error_report("virtfs support is disabled");
3486 exit(1);
3487 }
3488 opts = qemu_opts_parse_noisily(olist, optarg, true);
3489 if (!opts) {
3490 exit(1);
3491 }
3492
3493 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3494 qemu_opt_get(opts, "mount_tag") == NULL) {
3495 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3496 exit(1);
3497 }
3498 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3499 qemu_opt_get(opts, "mount_tag"),
3500 1, NULL);
3501 if (!fsdev) {
3502 error_report("duplicate fsdev id: %s",
3503 qemu_opt_get(opts, "mount_tag"));
3504 exit(1);
3505 }
3506
3507 writeout = qemu_opt_get(opts, "writeout");
3508 if (writeout) {
3509 #ifdef CONFIG_SYNC_FILE_RANGE
3510 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3511 #else
3512 error_report("writeout=immediate not supported "
3513 "on this platform");
3514 exit(1);
3515 #endif
3516 }
3517 qemu_opt_set(fsdev, "fsdriver",
3518 qemu_opt_get(opts, "fsdriver"), &error_abort);
3519 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"),
3520 &error_abort);
3521 qemu_opt_set(fsdev, "security_model",
3522 qemu_opt_get(opts, "security_model"),
3523 &error_abort);
3524 socket = qemu_opt_get(opts, "socket");
3525 if (socket) {
3526 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3527 }
3528 sock_fd = qemu_opt_get(opts, "sock_fd");
3529 if (sock_fd) {
3530 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3531 }
3532
3533 qemu_opt_set_bool(fsdev, "readonly",
3534 qemu_opt_get_bool(opts, "readonly", 0),
3535 &error_abort);
3536 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3537 &error_abort);
3538 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3539 qemu_opt_set(device, "fsdev",
3540 qemu_opt_get(opts, "mount_tag"), &error_abort);
3541 qemu_opt_set(device, "mount_tag",
3542 qemu_opt_get(opts, "mount_tag"), &error_abort);
3543 break;
3544 }
3545 case QEMU_OPTION_virtfs_synth: {
3546 QemuOpts *fsdev;
3547 QemuOpts *device;
3548
3549 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3550 1, NULL);
3551 if (!fsdev) {
3552 error_report("duplicate option: %s", "virtfs_synth");
3553 exit(1);
3554 }
3555 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3556
3557 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3558 &error_abort);
3559 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3560 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3561 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3562 break;
3563 }
3564 case QEMU_OPTION_serial:
3565 add_device_config(DEV_SERIAL, optarg);
3566 default_serial = 0;
3567 if (strncmp(optarg, "mon:", 4) == 0) {
3568 default_monitor = 0;
3569 }
3570 break;
3571 case QEMU_OPTION_watchdog:
3572 if (watchdog) {
3573 error_report("only one watchdog option may be given");
3574 return 1;
3575 }
3576 watchdog = optarg;
3577 break;
3578 case QEMU_OPTION_watchdog_action:
3579 if (select_watchdog_action(optarg) == -1) {
3580 error_report("unknown -watchdog-action parameter");
3581 exit(1);
3582 }
3583 break;
3584 case QEMU_OPTION_virtiocon:
3585 add_device_config(DEV_VIRTCON, optarg);
3586 default_virtcon = 0;
3587 if (strncmp(optarg, "mon:", 4) == 0) {
3588 default_monitor = 0;
3589 }
3590 break;
3591 case QEMU_OPTION_parallel:
3592 add_device_config(DEV_PARALLEL, optarg);
3593 default_parallel = 0;
3594 if (strncmp(optarg, "mon:", 4) == 0) {
3595 default_monitor = 0;
3596 }
3597 break;
3598 case QEMU_OPTION_debugcon:
3599 add_device_config(DEV_DEBUGCON, optarg);
3600 break;
3601 case QEMU_OPTION_loadvm:
3602 loadvm = optarg;
3603 break;
3604 case QEMU_OPTION_full_screen:
3605 full_screen = 1;
3606 break;
3607 case QEMU_OPTION_no_frame:
3608 no_frame = 1;
3609 break;
3610 case QEMU_OPTION_alt_grab:
3611 alt_grab = 1;
3612 break;
3613 case QEMU_OPTION_ctrl_grab:
3614 ctrl_grab = 1;
3615 break;
3616 case QEMU_OPTION_no_quit:
3617 no_quit = 1;
3618 break;
3619 case QEMU_OPTION_sdl:
3620 #ifdef CONFIG_SDL
3621 display_type = DT_SDL;
3622 break;
3623 #else
3624 error_report("SDL support is disabled");
3625 exit(1);
3626 #endif
3627 case QEMU_OPTION_pidfile:
3628 pid_file = optarg;
3629 break;
3630 case QEMU_OPTION_win2k_hack:
3631 win2k_install_hack = 1;
3632 break;
3633 case QEMU_OPTION_rtc_td_hack: {
3634 static GlobalProperty slew_lost_ticks[] = {
3635 {
3636 .driver = "mc146818rtc",
3637 .property = "lost_tick_policy",
3638 .value = "slew",
3639 },
3640 { /* end of list */ }
3641 };
3642
3643 qdev_prop_register_global_list(slew_lost_ticks);
3644 break;
3645 }
3646 case QEMU_OPTION_acpitable:
3647 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3648 optarg, true);
3649 if (!opts) {
3650 exit(1);
3651 }
3652 do_acpitable_option(opts);
3653 break;
3654 case QEMU_OPTION_smbios:
3655 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3656 optarg, false);
3657 if (!opts) {
3658 exit(1);
3659 }
3660 do_smbios_option(opts);
3661 break;
3662 case QEMU_OPTION_fwcfg:
3663 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3664 optarg, true);
3665 if (opts == NULL) {
3666 exit(1);
3667 }
3668 break;
3669 case QEMU_OPTION_enable_kvm:
3670 olist = qemu_find_opts("machine");
3671 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3672 break;
3673 case QEMU_OPTION_M:
3674 case QEMU_OPTION_machine:
3675 olist = qemu_find_opts("machine");
3676 opts = qemu_opts_parse_noisily(olist, optarg, true);
3677 if (!opts) {
3678 exit(1);
3679 }
3680 break;
3681 case QEMU_OPTION_no_kvm:
3682 olist = qemu_find_opts("machine");
3683 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3684 break;
3685 case QEMU_OPTION_no_kvm_pit: {
3686 error_report("warning: ignoring deprecated option");
3687 break;
3688 }
3689 case QEMU_OPTION_no_kvm_pit_reinjection: {
3690 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3691 {
3692 .driver = "kvm-pit",
3693 .property = "lost_tick_policy",
3694 .value = "discard",
3695 },
3696 { /* end of list */ }
3697 };
3698
3699 error_report("warning: deprecated, replaced by "
3700 "-global kvm-pit.lost_tick_policy=discard");
3701 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3702 break;
3703 }
3704 case QEMU_OPTION_usb:
3705 olist = qemu_find_opts("machine");
3706 qemu_opts_parse_noisily(olist, "usb=on", false);
3707 break;
3708 case QEMU_OPTION_usbdevice:
3709 olist = qemu_find_opts("machine");
3710 qemu_opts_parse_noisily(olist, "usb=on", false);
3711 add_device_config(DEV_USB, optarg);
3712 break;
3713 case QEMU_OPTION_device:
3714 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3715 optarg, true)) {
3716 exit(1);
3717 }
3718 break;
3719 case QEMU_OPTION_smp:
3720 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3721 optarg, true)) {
3722 exit(1);
3723 }
3724 break;
3725 case QEMU_OPTION_vnc:
3726 {
3727 #ifdef CONFIG_VNC
3728 Error *local_err = NULL;
3729
3730 if (vnc_parse(optarg, &local_err) == NULL) {
3731 error_report_err(local_err);
3732 exit(1);
3733 }
3734 #else
3735 error_report("VNC support is disabled");
3736 exit(1);
3737 #endif
3738 break;
3739 }
3740 case QEMU_OPTION_no_acpi:
3741 acpi_enabled = 0;
3742 break;
3743 case QEMU_OPTION_no_hpet:
3744 no_hpet = 1;
3745 break;
3746 case QEMU_OPTION_balloon:
3747 if (balloon_parse(optarg) < 0) {
3748 error_report("unknown -balloon argument %s", optarg);
3749 exit(1);
3750 }
3751 break;
3752 case QEMU_OPTION_no_reboot:
3753 no_reboot = 1;
3754 break;
3755 case QEMU_OPTION_no_shutdown:
3756 no_shutdown = 1;
3757 break;
3758 case QEMU_OPTION_show_cursor:
3759 cursor_hide = 0;
3760 break;
3761 case QEMU_OPTION_uuid:
3762 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3763 error_report("failed to parse UUID string: wrong format");
3764 exit(1);
3765 }
3766 qemu_uuid_set = true;
3767 break;
3768 case QEMU_OPTION_option_rom:
3769 if (nb_option_roms >= MAX_OPTION_ROMS) {
3770 error_report("too many option ROMs");
3771 exit(1);
3772 }
3773 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3774 optarg, true);
3775 if (!opts) {
3776 exit(1);
3777 }
3778 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3779 option_rom[nb_option_roms].bootindex =
3780 qemu_opt_get_number(opts, "bootindex", -1);
3781 if (!option_rom[nb_option_roms].name) {
3782 error_report("Option ROM file is not specified");
3783 exit(1);
3784 }
3785 nb_option_roms++;
3786 break;
3787 case QEMU_OPTION_semihosting:
3788 semihosting.enabled = true;
3789 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3790 break;
3791 case QEMU_OPTION_semihosting_config:
3792 semihosting.enabled = true;
3793 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3794 optarg, false);
3795 if (opts != NULL) {
3796 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3797 true);
3798 const char *target = qemu_opt_get(opts, "target");
3799 if (target != NULL) {
3800 if (strcmp("native", target) == 0) {
3801 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3802 } else if (strcmp("gdb", target) == 0) {
3803 semihosting.target = SEMIHOSTING_TARGET_GDB;
3804 } else if (strcmp("auto", target) == 0) {
3805 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3806 } else {
3807 error_report("unsupported semihosting-config %s",
3808 optarg);
3809 exit(1);
3810 }
3811 } else {
3812 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3813 }
3814 /* Set semihosting argument count and vector */
3815 qemu_opt_foreach(opts, add_semihosting_arg,
3816 &semihosting, NULL);
3817 } else {
3818 error_report("unsupported semihosting-config %s", optarg);
3819 exit(1);
3820 }
3821 break;
3822 case QEMU_OPTION_tdf:
3823 error_report("warning: ignoring deprecated option");
3824 break;
3825 case QEMU_OPTION_name:
3826 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3827 optarg, true);
3828 if (!opts) {
3829 exit(1);
3830 }
3831 break;
3832 case QEMU_OPTION_prom_env:
3833 if (nb_prom_envs >= MAX_PROM_ENVS) {
3834 error_report("too many prom variables");
3835 exit(1);
3836 }
3837 prom_envs[nb_prom_envs] = optarg;
3838 nb_prom_envs++;
3839 break;
3840 case QEMU_OPTION_old_param:
3841 old_param = 1;
3842 break;
3843 case QEMU_OPTION_clock:
3844 /* Clock options no longer exist. Keep this option for
3845 * backward compatibility.
3846 */
3847 break;
3848 case QEMU_OPTION_startdate:
3849 configure_rtc_date_offset(optarg, 1);
3850 break;
3851 case QEMU_OPTION_rtc:
3852 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3853 false);
3854 if (!opts) {
3855 exit(1);
3856 }
3857 configure_rtc(opts);
3858 break;
3859 case QEMU_OPTION_tb_size:
3860 tcg_tb_size = strtol(optarg, NULL, 0);
3861 if (tcg_tb_size < 0) {
3862 tcg_tb_size = 0;
3863 }
3864 break;
3865 case QEMU_OPTION_icount:
3866 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3867 optarg, true);
3868 if (!icount_opts) {
3869 exit(1);
3870 }
3871 break;
3872 case QEMU_OPTION_incoming:
3873 if (!incoming) {
3874 runstate_set(RUN_STATE_INMIGRATE);
3875 }
3876 incoming = optarg;
3877 break;
3878 case QEMU_OPTION_nodefaults:
3879 has_defaults = 0;
3880 break;
3881 case QEMU_OPTION_xen_domid:
3882 if (!(xen_available())) {
3883 printf("Option %s not supported for this target\n", popt->name);
3884 exit(1);
3885 }
3886 xen_domid = atoi(optarg);
3887 break;
3888 case QEMU_OPTION_xen_create:
3889 if (!(xen_available())) {
3890 printf("Option %s not supported for this target\n", popt->name);
3891 exit(1);
3892 }
3893 xen_mode = XEN_CREATE;
3894 break;
3895 case QEMU_OPTION_xen_attach:
3896 if (!(xen_available())) {
3897 printf("Option %s not supported for this target\n", popt->name);
3898 exit(1);
3899 }
3900 xen_mode = XEN_ATTACH;
3901 break;
3902 case QEMU_OPTION_trace:
3903 {
3904 opts = qemu_opts_parse_noisily(qemu_find_opts("trace"),
3905 optarg, false);
3906 if (!opts) {
3907 exit(1);
3908 }
3909 trace_events = qemu_opt_get(opts, "events");
3910 trace_file = qemu_opt_get(opts, "file");
3911 break;
3912 }
3913 case QEMU_OPTION_readconfig:
3914 {
3915 int ret = qemu_read_config_file(optarg);
3916 if (ret < 0) {
3917 error_report("read config %s: %s", optarg,
3918 strerror(-ret));
3919 exit(1);
3920 }
3921 break;
3922 }
3923 case QEMU_OPTION_spice:
3924 olist = qemu_find_opts("spice");
3925 if (!olist) {
3926 error_report("spice support is disabled");
3927 exit(1);
3928 }
3929 opts = qemu_opts_parse_noisily(olist, optarg, false);
3930 if (!opts) {
3931 exit(1);
3932 }
3933 display_remote++;
3934 break;
3935 case QEMU_OPTION_writeconfig:
3936 {
3937 FILE *fp;
3938 if (strcmp(optarg, "-") == 0) {
3939 fp = stdout;
3940 } else {
3941 fp = fopen(optarg, "w");
3942 if (fp == NULL) {
3943 error_report("open %s: %s", optarg,
3944 strerror(errno));
3945 exit(1);
3946 }
3947 }
3948 qemu_config_write(fp);
3949 if (fp != stdout) {
3950 fclose(fp);
3951 }
3952 break;
3953 }
3954 case QEMU_OPTION_qtest:
3955 qtest_chrdev = optarg;
3956 break;
3957 case QEMU_OPTION_qtest_log:
3958 qtest_log = optarg;
3959 break;
3960 case QEMU_OPTION_sandbox:
3961 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3962 optarg, true);
3963 if (!opts) {
3964 exit(1);
3965 }
3966 break;
3967 case QEMU_OPTION_add_fd:
3968 #ifndef _WIN32
3969 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3970 optarg, false);
3971 if (!opts) {
3972 exit(1);
3973 }
3974 #else
3975 error_report("File descriptor passing is disabled on this "
3976 "platform");
3977 exit(1);
3978 #endif
3979 break;
3980 case QEMU_OPTION_object:
3981 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3982 optarg, true);
3983 if (!opts) {
3984 exit(1);
3985 }
3986 break;
3987 case QEMU_OPTION_realtime:
3988 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3989 optarg, false);
3990 if (!opts) {
3991 exit(1);
3992 }
3993 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3994 break;
3995 case QEMU_OPTION_msg:
3996 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3997 false);
3998 if (!opts) {
3999 exit(1);
4000 }
4001 configure_msg(opts);
4002 break;
4003 case QEMU_OPTION_dump_vmstate:
4004 if (vmstate_dump_file) {
4005 error_report("only one '-dump-vmstate' "
4006 "option may be given");
4007 exit(1);
4008 }
4009 vmstate_dump_file = fopen(optarg, "w");
4010 if (vmstate_dump_file == NULL) {
4011 error_report("open %s: %s", optarg, strerror(errno));
4012 exit(1);
4013 }
4014 break;
4015 default:
4016 os_parse_cmd_args(popt->index, optarg);
4017 }
4018 }
4019 }
4020
4021 replay_configure(icount_opts);
4022
4023 opts = qemu_get_machine_opts();
4024 optarg = qemu_opt_get(opts, "type");
4025 if (optarg) {
4026 machine_class = machine_parse(optarg);
4027 }
4028
4029 if (machine_class == NULL) {
4030 error_report("No machine specified, and there is no default");
4031 error_printf("Use -machine help to list supported machines\n");
4032 exit(1);
4033 }
4034
4035 set_memory_options(&ram_slots, &maxram_size, machine_class);
4036
4037 loc_set_none();
4038
4039 os_daemonize();
4040
4041 if (qemu_init_main_loop(&main_loop_err)) {
4042 error_report_err(main_loop_err);
4043 exit(1);
4044 }
4045
4046 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4047 parse_sandbox, NULL, NULL)) {
4048 exit(1);
4049 }
4050
4051 if (qemu_opts_foreach(qemu_find_opts("name"),
4052 parse_name, NULL, NULL)) {
4053 exit(1);
4054 }
4055
4056 #ifndef _WIN32
4057 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4058 parse_add_fd, NULL, NULL)) {
4059 exit(1);
4060 }
4061
4062 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4063 cleanup_add_fd, NULL, NULL)) {
4064 exit(1);
4065 }
4066 #endif
4067
4068 current_machine = MACHINE(object_new(object_class_get_name(
4069 OBJECT_CLASS(machine_class))));
4070 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4071 exit(0);
4072 }
4073 object_property_add_child(object_get_root(), "machine",
4074 OBJECT(current_machine), &error_abort);
4075 cpu_exec_init_all();
4076
4077 if (machine_class->hw_version) {
4078 qemu_set_hw_version(machine_class->hw_version);
4079 }
4080
4081 /* Init CPU def lists, based on config
4082 * - Must be called after all the qemu_read_config_file() calls
4083 * - Must be called before list_cpus()
4084 * - Must be called before machine->init()
4085 */
4086 cpudef_init();
4087
4088 if (cpu_model && is_help_option(cpu_model)) {
4089 list_cpus(stdout, &fprintf, cpu_model);
4090 exit(0);
4091 }
4092
4093 /* Open the logfile at this point and set the log mask if necessary.
4094 */
4095 if (log_file) {
4096 qemu_set_log_filename(log_file);
4097 }
4098
4099 if (log_mask) {
4100 int mask;
4101 mask = qemu_str_to_log_mask(log_mask);
4102 if (!mask) {
4103 qemu_print_log_usage(stdout);
4104 exit(1);
4105 }
4106 qemu_set_log(mask);
4107 }
4108
4109 if (!is_daemonized()) {
4110 if (!trace_init_backends(trace_events, trace_file)) {
4111 exit(1);
4112 }
4113 }
4114
4115 /* If no data_dir is specified then try to find it relative to the
4116 executable path. */
4117 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4118 data_dir[data_dir_idx] = os_find_datadir();
4119 if (data_dir[data_dir_idx] != NULL) {
4120 data_dir_idx++;
4121 }
4122 }
4123 /* If all else fails use the install path specified when building. */
4124 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4125 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
4126 }
4127
4128 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4129
4130 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4131 if (max_cpus > machine_class->max_cpus) {
4132 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs "
4133 "supported by machine '%s' (%d)", max_cpus,
4134 machine_class->name, machine_class->max_cpus);
4135 exit(1);
4136 }
4137
4138 /*
4139 * Get the default machine options from the machine if it is not already
4140 * specified either by the configuration file or by the command line.
4141 */
4142 if (machine_class->default_machine_opts) {
4143 qemu_opts_set_defaults(qemu_find_opts("machine"),
4144 machine_class->default_machine_opts, 0);
4145 }
4146
4147 qemu_opts_foreach(qemu_find_opts("device"),
4148 default_driver_check, NULL, NULL);
4149 qemu_opts_foreach(qemu_find_opts("global"),
4150 default_driver_check, NULL, NULL);
4151
4152 if (!vga_model && !default_vga) {
4153 vga_interface_type = VGA_DEVICE;
4154 }
4155 if (!has_defaults || machine_class->no_serial) {
4156 default_serial = 0;
4157 }
4158 if (!has_defaults || machine_class->no_parallel) {
4159 default_parallel = 0;
4160 }
4161 if (!has_defaults || !machine_class->use_virtcon) {
4162 default_virtcon = 0;
4163 }
4164 if (!has_defaults || !machine_class->use_sclp) {
4165 default_sclp = 0;
4166 }
4167 if (!has_defaults || machine_class->no_floppy) {
4168 default_floppy = 0;
4169 }
4170 if (!has_defaults || machine_class->no_cdrom) {
4171 default_cdrom = 0;
4172 }
4173 if (!has_defaults || machine_class->no_sdcard) {
4174 default_sdcard = 0;
4175 }
4176 if (!has_defaults) {
4177 default_monitor = 0;
4178 default_net = 0;
4179 default_vga = 0;
4180 }
4181
4182 if (is_daemonized()) {
4183 /* According to documentation and historically, -nographic redirects
4184 * serial port, parallel port and monitor to stdio, which does not work
4185 * with -daemonize. We can redirect these to null instead, but since
4186 * -nographic is legacy, let's just error out.
4187 * We disallow -nographic only if all other ports are not redirected
4188 * explicitly, to not break existing legacy setups which uses
4189 * -nographic _and_ redirects all ports explicitly - this is valid
4190 * usage, -nographic is just a no-op in this case.
4191 */
4192 if (display_type == DT_NOGRAPHIC
4193 && (default_parallel || default_serial
4194 || default_monitor || default_virtcon)) {
4195 error_report("-nographic cannot be used with -daemonize");
4196 exit(1);
4197 }
4198 #ifdef CONFIG_CURSES
4199 if (display_type == DT_CURSES) {
4200 error_report("curses display cannot be used with -daemonize");
4201 exit(1);
4202 }
4203 #endif
4204 }
4205
4206 if (display_type == DT_NOGRAPHIC) {
4207 if (default_parallel)
4208 add_device_config(DEV_PARALLEL, "null");
4209 if (default_serial && default_monitor) {
4210 add_device_config(DEV_SERIAL, "mon:stdio");
4211 } else if (default_virtcon && default_monitor) {
4212 add_device_config(DEV_VIRTCON, "mon:stdio");
4213 } else if (default_sclp && default_monitor) {
4214 add_device_config(DEV_SCLP, "mon:stdio");
4215 } else {
4216 if (default_serial)
4217 add_device_config(DEV_SERIAL, "stdio");
4218 if (default_virtcon)
4219 add_device_config(DEV_VIRTCON, "stdio");
4220 if (default_sclp) {
4221 add_device_config(DEV_SCLP, "stdio");
4222 }
4223 if (default_monitor)
4224 monitor_parse("stdio", "readline", false);
4225 }
4226 } else {
4227 if (default_serial)
4228 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4229 if (default_parallel)
4230 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4231 if (default_monitor)
4232 monitor_parse("vc:80Cx24C", "readline", false);
4233 if (default_virtcon)
4234 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4235 if (default_sclp) {
4236 add_device_config(DEV_SCLP, "vc:80Cx24C");
4237 }
4238 }
4239
4240 #if defined(CONFIG_VNC)
4241 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4242 display_remote++;
4243 }
4244 #endif
4245 if (display_type == DT_DEFAULT && !display_remote) {
4246 #if defined(CONFIG_GTK)
4247 display_type = DT_GTK;
4248 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
4249 display_type = DT_SDL;
4250 #elif defined(CONFIG_VNC)
4251 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4252 show_vnc_port = 1;
4253 #else
4254 display_type = DT_NONE;
4255 #endif
4256 }
4257
4258 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4259 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4260 "for SDL, ignoring option");
4261 }
4262 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4263 error_report("-no-quit is only valid for GTK and SDL, "
4264 "ignoring option");
4265 }
4266
4267 #if defined(CONFIG_GTK)
4268 if (display_type == DT_GTK) {
4269 early_gtk_display_init(request_opengl);
4270 }
4271 #endif
4272 #if defined(CONFIG_SDL)
4273 if (display_type == DT_SDL) {
4274 sdl_display_early_init(request_opengl);
4275 }
4276 #endif
4277 if (request_opengl == 1 && display_opengl == 0) {
4278 #if defined(CONFIG_OPENGL)
4279 error_report("OpenGL is not supported by the display");
4280 #else
4281 error_report("OpenGL support is disabled");
4282 #endif
4283 exit(1);
4284 }
4285
4286 page_size_init();
4287 socket_init();
4288
4289 if (qemu_opts_foreach(qemu_find_opts("object"),
4290 object_create,
4291 object_create_initial, NULL)) {
4292 exit(1);
4293 }
4294
4295 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4296 chardev_init_func, NULL, NULL)) {
4297 exit(1);
4298 }
4299
4300 #ifdef CONFIG_VIRTFS
4301 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4302 fsdev_init_func, NULL, NULL)) {
4303 exit(1);
4304 }
4305 #endif
4306
4307 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4308 error_report("could not acquire pid file: %s", strerror(errno));
4309 exit(1);
4310 }
4311
4312 if (qemu_opts_foreach(qemu_find_opts("device"),
4313 device_help_func, NULL, NULL)) {
4314 exit(0);
4315 }
4316
4317 machine_opts = qemu_get_machine_opts();
4318 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4319 NULL)) {
4320 object_unref(OBJECT(current_machine));
4321 exit(1);
4322 }
4323
4324 configure_accelerator(current_machine);
4325
4326 if (qtest_chrdev) {
4327 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4328 }
4329
4330 machine_opts = qemu_get_machine_opts();
4331 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4332 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4333 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4334 bios_name = qemu_opt_get(machine_opts, "firmware");
4335
4336 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4337 if (opts) {
4338 boot_order = qemu_opt_get(opts, "order");
4339 if (boot_order) {
4340 validate_bootdevices(boot_order, &error_fatal);
4341 }
4342
4343 boot_once = qemu_opt_get(opts, "once");
4344 if (boot_once) {
4345 validate_bootdevices(boot_once, &error_fatal);
4346 }
4347
4348 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4349 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4350 }
4351
4352 if (!boot_order) {
4353 boot_order = machine_class->default_boot_order;
4354 }
4355
4356 if (!kernel_cmdline) {
4357 kernel_cmdline = "";
4358 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4359 }
4360
4361 linux_boot = (kernel_filename != NULL);
4362
4363 if (!linux_boot && *kernel_cmdline != '\0') {
4364 error_report("-append only allowed with -kernel option");
4365 exit(1);
4366 }
4367
4368 if (!linux_boot && initrd_filename != NULL) {
4369 error_report("-initrd only allowed with -kernel option");
4370 exit(1);
4371 }
4372
4373 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4374 error_report("-dtb only allowed with -kernel option");
4375 exit(1);
4376 }
4377
4378 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4379 /* fall back to the -kernel/-append */
4380 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4381 }
4382
4383 os_set_line_buffering();
4384
4385 #ifdef CONFIG_SPICE
4386 /* spice needs the timers to be initialized by this point */
4387 qemu_spice_init();
4388 #endif
4389
4390 cpu_ticks_init();
4391 if (icount_opts) {
4392 if (kvm_enabled() || xen_enabled()) {
4393 error_report("-icount is not allowed with kvm or xen");
4394 exit(1);
4395 }
4396 configure_icount(icount_opts, &error_abort);
4397 qemu_opts_del(icount_opts);
4398 }
4399
4400 /* clean up network at qemu process termination */
4401 atexit(&net_cleanup);
4402
4403 if (net_init_clients() < 0) {
4404 exit(1);
4405 }
4406
4407 if (qemu_opts_foreach(qemu_find_opts("object"),
4408 object_create,
4409 object_create_delayed, NULL)) {
4410 exit(1);
4411 }
4412
4413 #ifdef CONFIG_TPM
4414 if (tpm_init() < 0) {
4415 exit(1);
4416 }
4417 #endif
4418
4419 /* init the bluetooth world */
4420 if (foreach_device_config(DEV_BT, bt_parse))
4421 exit(1);
4422
4423 if (!xen_enabled()) {
4424 /* On 32-bit hosts, QEMU is limited by virtual address space */
4425 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4426 error_report("at most 2047 MB RAM can be simulated");
4427 exit(1);
4428 }
4429 }
4430
4431 blk_mig_init();
4432 ram_mig_init();
4433
4434 /* If the currently selected machine wishes to override the units-per-bus
4435 * property of its default HBA interface type, do so now. */
4436 if (machine_class->units_per_default_bus) {
4437 override_max_devs(machine_class->block_default_type,
4438 machine_class->units_per_default_bus);
4439 }
4440
4441 /* open the virtual block devices */
4442 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4443 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4444 NULL, NULL);
4445 }
4446 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4447 &machine_class->block_default_type, NULL)) {
4448 exit(1);
4449 }
4450
4451 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4452 CDROM_OPTS);
4453 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4454 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4455
4456 parse_numa_opts(machine_class);
4457
4458 if (qemu_opts_foreach(qemu_find_opts("mon"),
4459 mon_init_func, NULL, NULL)) {
4460 exit(1);
4461 }
4462
4463 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4464 exit(1);
4465 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4466 exit(1);
4467 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4468 exit(1);
4469 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4470 exit(1);
4471 }
4472 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4473 exit(1);
4474
4475 /* If no default VGA is requested, the default is "none". */
4476 if (default_vga) {
4477 if (machine_class->default_display) {
4478 vga_model = machine_class->default_display;
4479 } else if (cirrus_vga_available()) {
4480 vga_model = "cirrus";
4481 } else if (vga_available()) {
4482 vga_model = "std";
4483 }
4484 }
4485 if (vga_model) {
4486 select_vgahw(vga_model);
4487 }
4488
4489 if (watchdog) {
4490 i = select_watchdog(watchdog);
4491 if (i > 0)
4492 exit (i == 1 ? 1 : 0);
4493 }
4494
4495 if (machine_class->compat_props) {
4496 qdev_prop_register_global_list(machine_class->compat_props);
4497 }
4498 qemu_add_globals();
4499
4500 /* This checkpoint is required by replay to separate prior clock
4501 reading from the other reads, because timer polling functions query
4502 clock values from the log. */
4503 replay_checkpoint(CHECKPOINT_INIT);
4504 qdev_machine_init();
4505
4506 current_machine->ram_size = ram_size;
4507 current_machine->maxram_size = maxram_size;
4508 current_machine->ram_slots = ram_slots;
4509 current_machine->boot_order = boot_order;
4510 current_machine->cpu_model = cpu_model;
4511
4512 machine_class->init(current_machine);
4513
4514 realtime_init();
4515
4516 audio_init();
4517
4518 cpu_synchronize_all_post_init();
4519
4520 numa_post_machine_init();
4521
4522 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4523 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4524 exit(1);
4525 }
4526
4527 /* init USB devices */
4528 if (usb_enabled()) {
4529 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4530 exit(1);
4531 }
4532
4533 /* Check if IGD GFX passthrough. */
4534 igd_gfx_passthru();
4535
4536 /* init generic devices */
4537 if (qemu_opts_foreach(qemu_find_opts("device"),
4538 device_init_func, NULL, NULL)) {
4539 exit(1);
4540 }
4541
4542 /* Did we create any drives that we failed to create a device for? */
4543 drive_check_orphaned();
4544
4545 net_check_clients();
4546
4547 if (boot_once) {
4548 Error *local_err = NULL;
4549 qemu_boot_set(boot_once, &local_err);
4550 if (local_err) {
4551 error_report_err(local_err);
4552 exit(1);
4553 }
4554 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4555 }
4556
4557 ds = init_displaystate();
4558
4559 /* init local displays */
4560 switch (display_type) {
4561 case DT_NOGRAPHIC:
4562 (void)ds; /* avoid warning if no display is configured */
4563 break;
4564 #if defined(CONFIG_CURSES)
4565 case DT_CURSES:
4566 curses_display_init(ds, full_screen);
4567 break;
4568 #endif
4569 #if defined(CONFIG_SDL)
4570 case DT_SDL:
4571 sdl_display_init(ds, full_screen, no_frame);
4572 break;
4573 #elif defined(CONFIG_COCOA)
4574 case DT_SDL:
4575 cocoa_display_init(ds, full_screen);
4576 break;
4577 #endif
4578 #if defined(CONFIG_GTK)
4579 case DT_GTK:
4580 gtk_display_init(ds, full_screen, grab_on_hover);
4581 break;
4582 #endif
4583 default:
4584 break;
4585 }
4586
4587 /* must be after terminal init, SDL library changes signal handlers */
4588 os_setup_signal_handling();
4589
4590 #ifdef CONFIG_VNC
4591 /* init remote displays */
4592 qemu_opts_foreach(qemu_find_opts("vnc"),
4593 vnc_init_func, NULL, NULL);
4594 if (show_vnc_port) {
4595 char *ret = vnc_display_local_addr("default");
4596 printf("VNC server running on '%s'\n", ret);
4597 g_free(ret);
4598 }
4599 #endif
4600 #ifdef CONFIG_SPICE
4601 if (using_spice) {
4602 qemu_spice_display_init();
4603 }
4604 #endif
4605
4606 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4607 exit(1);
4608 }
4609
4610 qdev_machine_creation_done();
4611
4612 /* TODO: once all bus devices are qdevified, this should be done
4613 * when bus is created by qdev.c */
4614 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4615 qemu_run_machine_init_done_notifiers();
4616
4617 if (rom_check_and_register_reset() != 0) {
4618 error_report("rom check and register reset failed");
4619 exit(1);
4620 }
4621
4622 replay_start();
4623
4624 /* This checkpoint is required by replay to separate prior clock
4625 reading from the other reads, because timer polling functions query
4626 clock values from the log. */
4627 replay_checkpoint(CHECKPOINT_RESET);
4628 qemu_system_reset(VMRESET_SILENT);
4629 register_global_state();
4630 if (loadvm) {
4631 if (load_vmstate(loadvm) < 0) {
4632 autostart = 0;
4633 }
4634 }
4635
4636 qdev_prop_check_globals();
4637 if (vmstate_dump_file) {
4638 /* dump and exit */
4639 dump_vmstate_json_to_file(vmstate_dump_file);
4640 return 0;
4641 }
4642
4643 if (incoming) {
4644 Error *local_err = NULL;
4645 qemu_start_incoming_migration(incoming, &local_err);
4646 if (local_err) {
4647 error_reportf_err(local_err, "-incoming %s: ", incoming);
4648 exit(1);
4649 }
4650 } else if (autostart) {
4651 vm_start();
4652 }
4653
4654 os_setup_post();
4655
4656 if (is_daemonized()) {
4657 if (!trace_init_backends(trace_events, trace_file)) {
4658 exit(1);
4659 }
4660 }
4661
4662 main_loop();
4663 replay_disable_events();
4664
4665 bdrv_close_all();
4666 pause_all_vcpus();
4667 res_free();
4668 #ifdef CONFIG_TPM
4669 tpm_cleanup();
4670 #endif
4671
4672 return 0;
4673 }
QEmu