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block: Wording tweaks to write zeroes limits
[qemu/kevin.git] / vl.c
blob9bb7f4cd70372b73ae01bd5c69c0f5882284890e
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 "qemu/osdep.h"
25 #include "qemu-version.h"
26 #include "qemu/cutils.h"
27 #include "qemu/help_option.h"
28
29 #ifdef CONFIG_SECCOMP
30 #include "sysemu/seccomp.h"
31 #endif
32
33 #if defined(CONFIG_VDE)
34 #include <libvdeplug.h>
35 #endif
36
37 #ifdef CONFIG_SDL
38 #if defined(__APPLE__) || defined(main)
39 #include <SDL.h>
40 int qemu_main(int argc, char **argv, char **envp);
41 int main(int argc, char **argv)
42 {
43 return qemu_main(argc, argv, NULL);
44 }
45 #undef main
46 #define main qemu_main
47 #endif
48 #endif /* CONFIG_SDL */
49
50 #ifdef CONFIG_COCOA
51 #undef main
52 #define main qemu_main
53 #endif /* CONFIG_COCOA */
54
55
56 #include "qemu/error-report.h"
57 #include "qemu/sockets.h"
58 #include "hw/hw.h"
59 #include "hw/boards.h"
60 #include "sysemu/accel.h"
61 #include "hw/usb.h"
62 #include "hw/i386/pc.h"
63 #include "hw/isa/isa.h"
64 #include "hw/bt.h"
65 #include "sysemu/watchdog.h"
66 #include "hw/smbios/smbios.h"
67 #include "hw/xen/xen.h"
68 #include "hw/qdev.h"
69 #include "hw/loader.h"
70 #include "monitor/qdev.h"
71 #include "sysemu/bt.h"
72 #include "net/net.h"
73 #include "net/slirp.h"
74 #include "monitor/monitor.h"
75 #include "ui/console.h"
76 #include "ui/input.h"
77 #include "sysemu/sysemu.h"
78 #include "sysemu/numa.h"
79 #include "exec/gdbstub.h"
80 #include "qemu/timer.h"
81 #include "sysemu/char.h"
82 #include "qemu/bitmap.h"
83 #include "qemu/log.h"
84 #include "sysemu/blockdev.h"
85 #include "hw/block/block.h"
86 #include "migration/block.h"
87 #include "sysemu/tpm.h"
88 #include "sysemu/dma.h"
89 #include "audio/audio.h"
90 #include "migration/migration.h"
91 #include "sysemu/cpus.h"
92 #include "sysemu/kvm.h"
93 #include "qapi/qmp/qjson.h"
94 #include "qemu/option.h"
95 #include "qemu/config-file.h"
96 #include "qemu-options.h"
97 #include "qmp-commands.h"
98 #include "qemu/main-loop.h"
99 #ifdef CONFIG_VIRTFS
100 #include "fsdev/qemu-fsdev.h"
101 #endif
102 #include "sysemu/qtest.h"
103
104 #include "disas/disas.h"
105
106
107 #include "slirp/libslirp.h"
108
109 #include "trace.h"
110 #include "trace/control.h"
111 #include "qemu/queue.h"
112 #include "sysemu/cpus.h"
113 #include "sysemu/arch_init.h"
114
115 #include "ui/qemu-spice.h"
116 #include "qapi/string-input-visitor.h"
117 #include "qapi/opts-visitor.h"
118 #include "qom/object_interfaces.h"
119 #include "qapi-event.h"
120 #include "exec/semihost.h"
121 #include "crypto/init.h"
122 #include "sysemu/replay.h"
123 #include "qapi/qmp/qerror.h"
124
125 #define MAX_VIRTIO_CONSOLES 1
126 #define MAX_SCLP_CONSOLES 1
127
128 static const char *data_dir[16];
129 static int data_dir_idx;
130 const char *bios_name = NULL;
131 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
132 int request_opengl = -1;
133 int display_opengl;
134 const char* keyboard_layout = NULL;
135 ram_addr_t ram_size;
136 const char *mem_path = NULL;
137 int mem_prealloc = 0; /* force preallocation of physical target memory */
138 bool enable_mlock = false;
139 int nb_nics;
140 NICInfo nd_table[MAX_NICS];
141 int autostart;
142 static int rtc_utc = 1;
143 static int rtc_date_offset = -1; /* -1 means no change */
144 QEMUClockType rtc_clock;
145 int vga_interface_type = VGA_NONE;
146 static int full_screen = 0;
147 static int no_frame = 0;
148 int no_quit = 0;
149 static bool grab_on_hover;
150 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
151 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
152 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
153 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
154 int win2k_install_hack = 0;
155 int singlestep = 0;
156 int smp_cpus = 1;
157 int max_cpus = 1;
158 int smp_cores = 1;
159 int smp_threads = 1;
160 int acpi_enabled = 1;
161 int no_hpet = 0;
162 int fd_bootchk = 1;
163 static int no_reboot;
164 int no_shutdown = 0;
165 int cursor_hide = 1;
166 int graphic_rotate = 0;
167 const char *watchdog;
168 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
169 int nb_option_roms;
170 int old_param = 0;
171 const char *qemu_name;
172 int alt_grab = 0;
173 int ctrl_grab = 0;
174 unsigned int nb_prom_envs = 0;
175 const char *prom_envs[MAX_PROM_ENVS];
176 int boot_menu;
177 bool boot_strict;
178 uint8_t *boot_splash_filedata;
179 size_t boot_splash_filedata_size;
180 uint8_t qemu_extra_params_fw[2];
181
182 int icount_align_option;
183
184 /* The bytes in qemu_uuid[] are in the order specified by RFC4122, _not_ in the
185 * little-endian "wire format" described in the SMBIOS 2.6 specification.
186 */
187 uint8_t qemu_uuid[16];
188 bool qemu_uuid_set;
189
190 static NotifierList exit_notifiers =
191 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
192
193 static NotifierList machine_init_done_notifiers =
194 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
195
196 bool xen_allowed;
197 uint32_t xen_domid;
198 enum xen_mode xen_mode = XEN_EMULATE;
199
200 static int has_defaults = 1;
201 static int default_serial = 1;
202 static int default_parallel = 1;
203 static int default_virtcon = 1;
204 static int default_sclp = 1;
205 static int default_monitor = 1;
206 static int default_floppy = 1;
207 static int default_cdrom = 1;
208 static int default_sdcard = 1;
209 static int default_vga = 1;
210 static int default_net = 1;
211
212 static struct {
213 const char *driver;
214 int *flag;
215 } default_list[] = {
216 { .driver = "isa-serial", .flag = &default_serial },
217 { .driver = "isa-parallel", .flag = &default_parallel },
218 { .driver = "isa-fdc", .flag = &default_floppy },
219 { .driver = "ide-cd", .flag = &default_cdrom },
220 { .driver = "ide-hd", .flag = &default_cdrom },
221 { .driver = "ide-drive", .flag = &default_cdrom },
222 { .driver = "scsi-cd", .flag = &default_cdrom },
223 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
224 { .driver = "virtio-serial", .flag = &default_virtcon },
225 { .driver = "VGA", .flag = &default_vga },
226 { .driver = "isa-vga", .flag = &default_vga },
227 { .driver = "cirrus-vga", .flag = &default_vga },
228 { .driver = "isa-cirrus-vga", .flag = &default_vga },
229 { .driver = "vmware-svga", .flag = &default_vga },
230 { .driver = "qxl-vga", .flag = &default_vga },
231 { .driver = "virtio-vga", .flag = &default_vga },
232 };
233
234 static QemuOptsList qemu_rtc_opts = {
235 .name = "rtc",
236 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
237 .desc = {
238 {
239 .name = "base",
240 .type = QEMU_OPT_STRING,
241 },{
242 .name = "clock",
243 .type = QEMU_OPT_STRING,
244 },{
245 .name = "driftfix",
246 .type = QEMU_OPT_STRING,
247 },
248 { /* end of list */ }
249 },
250 };
251
252 static QemuOptsList qemu_sandbox_opts = {
253 .name = "sandbox",
254 .implied_opt_name = "enable",
255 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
256 .desc = {
257 {
258 .name = "enable",
259 .type = QEMU_OPT_BOOL,
260 },
261 { /* end of list */ }
262 },
263 };
264
265 static QemuOptsList qemu_option_rom_opts = {
266 .name = "option-rom",
267 .implied_opt_name = "romfile",
268 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
269 .desc = {
270 {
271 .name = "bootindex",
272 .type = QEMU_OPT_NUMBER,
273 }, {
274 .name = "romfile",
275 .type = QEMU_OPT_STRING,
276 },
277 { /* end of list */ }
278 },
279 };
280
281 static QemuOptsList qemu_machine_opts = {
282 .name = "machine",
283 .implied_opt_name = "type",
284 .merge_lists = true,
285 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
286 .desc = {
287 /*
288 * no elements => accept any
289 * sanity checking will happen later
290 * when setting machine properties
291 */
292 { }
293 },
294 };
295
296 static QemuOptsList qemu_boot_opts = {
297 .name = "boot-opts",
298 .implied_opt_name = "order",
299 .merge_lists = true,
300 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
301 .desc = {
302 {
303 .name = "order",
304 .type = QEMU_OPT_STRING,
305 }, {
306 .name = "once",
307 .type = QEMU_OPT_STRING,
308 }, {
309 .name = "menu",
310 .type = QEMU_OPT_BOOL,
311 }, {
312 .name = "splash",
313 .type = QEMU_OPT_STRING,
314 }, {
315 .name = "splash-time",
316 .type = QEMU_OPT_STRING,
317 }, {
318 .name = "reboot-timeout",
319 .type = QEMU_OPT_STRING,
320 }, {
321 .name = "strict",
322 .type = QEMU_OPT_BOOL,
323 },
324 { /*End of list */ }
325 },
326 };
327
328 static QemuOptsList qemu_add_fd_opts = {
329 .name = "add-fd",
330 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
331 .desc = {
332 {
333 .name = "fd",
334 .type = QEMU_OPT_NUMBER,
335 .help = "file descriptor of which a duplicate is added to fd set",
336 },{
337 .name = "set",
338 .type = QEMU_OPT_NUMBER,
339 .help = "ID of the fd set to add fd to",
340 },{
341 .name = "opaque",
342 .type = QEMU_OPT_STRING,
343 .help = "free-form string used to describe fd",
344 },
345 { /* end of list */ }
346 },
347 };
348
349 static QemuOptsList qemu_object_opts = {
350 .name = "object",
351 .implied_opt_name = "qom-type",
352 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
353 .desc = {
354 { }
355 },
356 };
357
358 static QemuOptsList qemu_tpmdev_opts = {
359 .name = "tpmdev",
360 .implied_opt_name = "type",
361 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
362 .desc = {
363 /* options are defined in the TPM backends */
364 { /* end of list */ }
365 },
366 };
367
368 static QemuOptsList qemu_realtime_opts = {
369 .name = "realtime",
370 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
371 .desc = {
372 {
373 .name = "mlock",
374 .type = QEMU_OPT_BOOL,
375 },
376 { /* end of list */ }
377 },
378 };
379
380 static QemuOptsList qemu_msg_opts = {
381 .name = "msg",
382 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
383 .desc = {
384 {
385 .name = "timestamp",
386 .type = QEMU_OPT_BOOL,
387 },
388 { /* end of list */ }
389 },
390 };
391
392 static QemuOptsList qemu_name_opts = {
393 .name = "name",
394 .implied_opt_name = "guest",
395 .merge_lists = true,
396 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
397 .desc = {
398 {
399 .name = "guest",
400 .type = QEMU_OPT_STRING,
401 .help = "Sets the name of the guest.\n"
402 "This name will be displayed in the SDL window caption.\n"
403 "The name will also be used for the VNC server",
404 }, {
405 .name = "process",
406 .type = QEMU_OPT_STRING,
407 .help = "Sets the name of the QEMU process, as shown in top etc",
408 }, {
409 .name = "debug-threads",
410 .type = QEMU_OPT_BOOL,
411 .help = "When enabled, name the individual threads; defaults off.\n"
412 "NOTE: The thread names are for debugging and not a\n"
413 "stable API.",
414 },
415 { /* End of list */ }
416 },
417 };
418
419 static QemuOptsList qemu_mem_opts = {
420 .name = "memory",
421 .implied_opt_name = "size",
422 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
423 .merge_lists = true,
424 .desc = {
425 {
426 .name = "size",
427 .type = QEMU_OPT_SIZE,
428 },
429 {
430 .name = "slots",
431 .type = QEMU_OPT_NUMBER,
432 },
433 {
434 .name = "maxmem",
435 .type = QEMU_OPT_SIZE,
436 },
437 { /* end of list */ }
438 },
439 };
440
441 static QemuOptsList qemu_icount_opts = {
442 .name = "icount",
443 .implied_opt_name = "shift",
444 .merge_lists = true,
445 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
446 .desc = {
447 {
448 .name = "shift",
449 .type = QEMU_OPT_STRING,
450 }, {
451 .name = "align",
452 .type = QEMU_OPT_BOOL,
453 }, {
454 .name = "sleep",
455 .type = QEMU_OPT_BOOL,
456 }, {
457 .name = "rr",
458 .type = QEMU_OPT_STRING,
459 }, {
460 .name = "rrfile",
461 .type = QEMU_OPT_STRING,
462 },
463 { /* end of list */ }
464 },
465 };
466
467 static QemuOptsList qemu_semihosting_config_opts = {
468 .name = "semihosting-config",
469 .implied_opt_name = "enable",
470 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
471 .desc = {
472 {
473 .name = "enable",
474 .type = QEMU_OPT_BOOL,
475 }, {
476 .name = "target",
477 .type = QEMU_OPT_STRING,
478 }, {
479 .name = "arg",
480 .type = QEMU_OPT_STRING,
481 },
482 { /* end of list */ }
483 },
484 };
485
486 static QemuOptsList qemu_fw_cfg_opts = {
487 .name = "fw_cfg",
488 .implied_opt_name = "name",
489 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
490 .desc = {
491 {
492 .name = "name",
493 .type = QEMU_OPT_STRING,
494 .help = "Sets the fw_cfg name of the blob to be inserted",
495 }, {
496 .name = "file",
497 .type = QEMU_OPT_STRING,
498 .help = "Sets the name of the file from which\n"
499 "the fw_cfg blob will be loaded",
500 }, {
501 .name = "string",
502 .type = QEMU_OPT_STRING,
503 .help = "Sets content of the blob to be inserted from a string",
504 },
505 { /* end of list */ }
506 },
507 };
508
509 /**
510 * Get machine options
511 *
512 * Returns: machine options (never null).
513 */
514 QemuOpts *qemu_get_machine_opts(void)
515 {
516 return qemu_find_opts_singleton("machine");
517 }
518
519 const char *qemu_get_vm_name(void)
520 {
521 return qemu_name;
522 }
523
524 static void res_free(void)
525 {
526 g_free(boot_splash_filedata);
527 boot_splash_filedata = NULL;
528 }
529
530 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
531 {
532 const char *driver = qemu_opt_get(opts, "driver");
533 int i;
534
535 if (!driver)
536 return 0;
537 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
538 if (strcmp(default_list[i].driver, driver) != 0)
539 continue;
540 *(default_list[i].flag) = 0;
541 }
542 return 0;
543 }
544
545 /***********************************************************/
546 /* QEMU state */
547
548 static RunState current_run_state = RUN_STATE_PRELAUNCH;
549
550 /* We use RUN_STATE__MAX but any invalid value will do */
551 static RunState vmstop_requested = RUN_STATE__MAX;
552 static QemuMutex vmstop_lock;
553
554 typedef struct {
555 RunState from;
556 RunState to;
557 } RunStateTransition;
558
559 static const RunStateTransition runstate_transitions_def[] = {
560 /* from -> to */
561 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
562 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
563 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
564
565 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
566 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
567 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
568 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
569 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
570 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
571 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
572 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
573 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
574 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
575 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
576
577 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
578 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
579 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
580
581 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
582 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
583 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
584
585 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
586 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
587 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
588
589 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
590 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
591 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
592
593 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
594 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
595 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
596
597 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
598 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
599 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
600
601 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
602 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
603
604 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
605 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
606 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
607 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
608 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
609 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
610 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
611 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
612 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
613 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
614
615 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
616
617 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
618 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
619 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
620
621 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
622 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
623 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
624 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
625 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
626
627 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
628 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
629 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
630
631 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
632 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
634
635 { RUN_STATE__MAX, RUN_STATE__MAX },
636 };
637
638 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
639
640 bool runstate_check(RunState state)
641 {
642 return current_run_state == state;
643 }
644
645 bool runstate_store(char *str, size_t size)
646 {
647 const char *state = RunState_lookup[current_run_state];
648 size_t len = strlen(state) + 1;
649
650 if (len > size) {
651 return false;
652 }
653 memcpy(str, state, len);
654 return true;
655 }
656
657 static void runstate_init(void)
658 {
659 const RunStateTransition *p;
660
661 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
662 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
663 runstate_valid_transitions[p->from][p->to] = true;
664 }
665
666 qemu_mutex_init(&vmstop_lock);
667 }
668
669 /* This function will abort() on invalid state transitions */
670 void runstate_set(RunState new_state)
671 {
672 assert(new_state < RUN_STATE__MAX);
673
674 if (current_run_state == new_state) {
675 return;
676 }
677
678 if (!runstate_valid_transitions[current_run_state][new_state]) {
679 error_report("invalid runstate transition: '%s' -> '%s'",
680 RunState_lookup[current_run_state],
681 RunState_lookup[new_state]);
682 abort();
683 }
684 trace_runstate_set(new_state);
685 current_run_state = new_state;
686 }
687
688 int runstate_is_running(void)
689 {
690 return runstate_check(RUN_STATE_RUNNING);
691 }
692
693 bool runstate_needs_reset(void)
694 {
695 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
696 runstate_check(RUN_STATE_SHUTDOWN);
697 }
698
699 StatusInfo *qmp_query_status(Error **errp)
700 {
701 StatusInfo *info = g_malloc0(sizeof(*info));
702
703 info->running = runstate_is_running();
704 info->singlestep = singlestep;
705 info->status = current_run_state;
706
707 return info;
708 }
709
710 static bool qemu_vmstop_requested(RunState *r)
711 {
712 qemu_mutex_lock(&vmstop_lock);
713 *r = vmstop_requested;
714 vmstop_requested = RUN_STATE__MAX;
715 qemu_mutex_unlock(&vmstop_lock);
716 return *r < RUN_STATE__MAX;
717 }
718
719 void qemu_system_vmstop_request_prepare(void)
720 {
721 qemu_mutex_lock(&vmstop_lock);
722 }
723
724 void qemu_system_vmstop_request(RunState state)
725 {
726 vmstop_requested = state;
727 qemu_mutex_unlock(&vmstop_lock);
728 qemu_notify_event();
729 }
730
731 void vm_start(void)
732 {
733 RunState requested;
734
735 qemu_vmstop_requested(&requested);
736 if (runstate_is_running() && requested == RUN_STATE__MAX) {
737 return;
738 }
739
740 /* Ensure that a STOP/RESUME pair of events is emitted if a
741 * vmstop request was pending. The BLOCK_IO_ERROR event, for
742 * example, according to documentation is always followed by
743 * the STOP event.
744 */
745 if (runstate_is_running()) {
746 qapi_event_send_stop(&error_abort);
747 } else {
748 cpu_enable_ticks();
749 runstate_set(RUN_STATE_RUNNING);
750 vm_state_notify(1, RUN_STATE_RUNNING);
751 resume_all_vcpus();
752 }
753
754 qapi_event_send_resume(&error_abort);
755 }
756
757
758 /***********************************************************/
759 /* real time host monotonic timer */
760
761 static time_t qemu_time(void)
762 {
763 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
764 }
765
766 /***********************************************************/
767 /* host time/date access */
768 void qemu_get_timedate(struct tm *tm, int offset)
769 {
770 time_t ti = qemu_time();
771
772 ti += offset;
773 if (rtc_date_offset == -1) {
774 if (rtc_utc)
775 gmtime_r(&ti, tm);
776 else
777 localtime_r(&ti, tm);
778 } else {
779 ti -= rtc_date_offset;
780 gmtime_r(&ti, tm);
781 }
782 }
783
784 int qemu_timedate_diff(struct tm *tm)
785 {
786 time_t seconds;
787
788 if (rtc_date_offset == -1)
789 if (rtc_utc)
790 seconds = mktimegm(tm);
791 else {
792 struct tm tmp = *tm;
793 tmp.tm_isdst = -1; /* use timezone to figure it out */
794 seconds = mktime(&tmp);
795 }
796 else
797 seconds = mktimegm(tm) + rtc_date_offset;
798
799 return seconds - qemu_time();
800 }
801
802 static void configure_rtc_date_offset(const char *startdate, int legacy)
803 {
804 time_t rtc_start_date;
805 struct tm tm;
806
807 if (!strcmp(startdate, "now") && legacy) {
808 rtc_date_offset = -1;
809 } else {
810 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
811 &tm.tm_year,
812 &tm.tm_mon,
813 &tm.tm_mday,
814 &tm.tm_hour,
815 &tm.tm_min,
816 &tm.tm_sec) == 6) {
817 /* OK */
818 } else if (sscanf(startdate, "%d-%d-%d",
819 &tm.tm_year,
820 &tm.tm_mon,
821 &tm.tm_mday) == 3) {
822 tm.tm_hour = 0;
823 tm.tm_min = 0;
824 tm.tm_sec = 0;
825 } else {
826 goto date_fail;
827 }
828 tm.tm_year -= 1900;
829 tm.tm_mon--;
830 rtc_start_date = mktimegm(&tm);
831 if (rtc_start_date == -1) {
832 date_fail:
833 error_report("invalid date format");
834 error_printf("valid formats: "
835 "'2006-06-17T16:01:21' or '2006-06-17'\n");
836 exit(1);
837 }
838 rtc_date_offset = qemu_time() - rtc_start_date;
839 }
840 }
841
842 static void configure_rtc(QemuOpts *opts)
843 {
844 const char *value;
845
846 value = qemu_opt_get(opts, "base");
847 if (value) {
848 if (!strcmp(value, "utc")) {
849 rtc_utc = 1;
850 } else if (!strcmp(value, "localtime")) {
851 Error *blocker = NULL;
852 rtc_utc = 0;
853 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
854 "-rtc base=localtime");
855 replay_add_blocker(blocker);
856 } else {
857 configure_rtc_date_offset(value, 0);
858 }
859 }
860 value = qemu_opt_get(opts, "clock");
861 if (value) {
862 if (!strcmp(value, "host")) {
863 rtc_clock = QEMU_CLOCK_HOST;
864 } else if (!strcmp(value, "rt")) {
865 rtc_clock = QEMU_CLOCK_REALTIME;
866 } else if (!strcmp(value, "vm")) {
867 rtc_clock = QEMU_CLOCK_VIRTUAL;
868 } else {
869 error_report("invalid option value '%s'", value);
870 exit(1);
871 }
872 }
873 value = qemu_opt_get(opts, "driftfix");
874 if (value) {
875 if (!strcmp(value, "slew")) {
876 static GlobalProperty slew_lost_ticks = {
877 .driver = "mc146818rtc",
878 .property = "lost_tick_policy",
879 .value = "slew",
880 };
881
882 qdev_prop_register_global(&slew_lost_ticks);
883 } else if (!strcmp(value, "none")) {
884 /* discard is default */
885 } else {
886 error_report("invalid option value '%s'", value);
887 exit(1);
888 }
889 }
890 }
891
892 /***********************************************************/
893 /* Bluetooth support */
894 static int nb_hcis;
895 static int cur_hci;
896 static struct HCIInfo *hci_table[MAX_NICS];
897
898 struct HCIInfo *qemu_next_hci(void)
899 {
900 if (cur_hci == nb_hcis)
901 return &null_hci;
902
903 return hci_table[cur_hci++];
904 }
905
906 static int bt_hci_parse(const char *str)
907 {
908 struct HCIInfo *hci;
909 bdaddr_t bdaddr;
910
911 if (nb_hcis >= MAX_NICS) {
912 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
913 return -1;
914 }
915
916 hci = hci_init(str);
917 if (!hci)
918 return -1;
919
920 bdaddr.b[0] = 0x52;
921 bdaddr.b[1] = 0x54;
922 bdaddr.b[2] = 0x00;
923 bdaddr.b[3] = 0x12;
924 bdaddr.b[4] = 0x34;
925 bdaddr.b[5] = 0x56 + nb_hcis;
926 hci->bdaddr_set(hci, bdaddr.b);
927
928 hci_table[nb_hcis++] = hci;
929
930 return 0;
931 }
932
933 static void bt_vhci_add(int vlan_id)
934 {
935 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
936
937 if (!vlan->slave)
938 error_report("warning: adding a VHCI to an empty scatternet %i",
939 vlan_id);
940
941 bt_vhci_init(bt_new_hci(vlan));
942 }
943
944 static struct bt_device_s *bt_device_add(const char *opt)
945 {
946 struct bt_scatternet_s *vlan;
947 int vlan_id = 0;
948 char *endp = strstr(opt, ",vlan=");
949 int len = (endp ? endp - opt : strlen(opt)) + 1;
950 char devname[10];
951
952 pstrcpy(devname, MIN(sizeof(devname), len), opt);
953
954 if (endp) {
955 vlan_id = strtol(endp + 6, &endp, 0);
956 if (*endp) {
957 error_report("unrecognised bluetooth vlan Id");
958 return 0;
959 }
960 }
961
962 vlan = qemu_find_bt_vlan(vlan_id);
963
964 if (!vlan->slave)
965 error_report("warning: adding a slave device to an empty scatternet %i",
966 vlan_id);
967
968 if (!strcmp(devname, "keyboard"))
969 return bt_keyboard_init(vlan);
970
971 error_report("unsupported bluetooth device '%s'", devname);
972 return 0;
973 }
974
975 static int bt_parse(const char *opt)
976 {
977 const char *endp, *p;
978 int vlan;
979
980 if (strstart(opt, "hci", &endp)) {
981 if (!*endp || *endp == ',') {
982 if (*endp)
983 if (!strstart(endp, ",vlan=", 0))
984 opt = endp + 1;
985
986 return bt_hci_parse(opt);
987 }
988 } else if (strstart(opt, "vhci", &endp)) {
989 if (!*endp || *endp == ',') {
990 if (*endp) {
991 if (strstart(endp, ",vlan=", &p)) {
992 vlan = strtol(p, (char **) &endp, 0);
993 if (*endp) {
994 error_report("bad scatternet '%s'", p);
995 return 1;
996 }
997 } else {
998 error_report("bad parameter '%s'", endp + 1);
999 return 1;
1000 }
1001 } else
1002 vlan = 0;
1003
1004 bt_vhci_add(vlan);
1005 return 0;
1006 }
1007 } else if (strstart(opt, "device:", &endp))
1008 return !bt_device_add(endp);
1009
1010 error_report("bad bluetooth parameter '%s'", opt);
1011 return 1;
1012 }
1013
1014 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1015 {
1016 /* FIXME: change this to true for 1.3 */
1017 if (qemu_opt_get_bool(opts, "enable", false)) {
1018 #ifdef CONFIG_SECCOMP
1019 if (seccomp_start() < 0) {
1020 error_report("failed to install seccomp syscall filter "
1021 "in the kernel");
1022 return -1;
1023 }
1024 #else
1025 error_report("seccomp support is disabled");
1026 return -1;
1027 #endif
1028 }
1029
1030 return 0;
1031 }
1032
1033 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1034 {
1035 const char *proc_name;
1036
1037 if (qemu_opt_get(opts, "debug-threads")) {
1038 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1039 }
1040 qemu_name = qemu_opt_get(opts, "guest");
1041
1042 proc_name = qemu_opt_get(opts, "process");
1043 if (proc_name) {
1044 os_set_proc_name(proc_name);
1045 }
1046
1047 return 0;
1048 }
1049
1050 bool defaults_enabled(void)
1051 {
1052 return has_defaults;
1053 }
1054
1055 #ifndef _WIN32
1056 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1057 {
1058 int fd, dupfd, flags;
1059 int64_t fdset_id;
1060 const char *fd_opaque = NULL;
1061 AddfdInfo *fdinfo;
1062
1063 fd = qemu_opt_get_number(opts, "fd", -1);
1064 fdset_id = qemu_opt_get_number(opts, "set", -1);
1065 fd_opaque = qemu_opt_get(opts, "opaque");
1066
1067 if (fd < 0) {
1068 error_report("fd option is required and must be non-negative");
1069 return -1;
1070 }
1071
1072 if (fd <= STDERR_FILENO) {
1073 error_report("fd cannot be a standard I/O stream");
1074 return -1;
1075 }
1076
1077 /*
1078 * All fds inherited across exec() necessarily have FD_CLOEXEC
1079 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1080 */
1081 flags = fcntl(fd, F_GETFD);
1082 if (flags == -1 || (flags & FD_CLOEXEC)) {
1083 error_report("fd is not valid or already in use");
1084 return -1;
1085 }
1086
1087 if (fdset_id < 0) {
1088 error_report("set option is required and must be non-negative");
1089 return -1;
1090 }
1091
1092 #ifdef F_DUPFD_CLOEXEC
1093 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1094 #else
1095 dupfd = dup(fd);
1096 if (dupfd != -1) {
1097 qemu_set_cloexec(dupfd);
1098 }
1099 #endif
1100 if (dupfd == -1) {
1101 error_report("error duplicating fd: %s", strerror(errno));
1102 return -1;
1103 }
1104
1105 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1106 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1107 &error_abort);
1108 g_free(fdinfo);
1109
1110 return 0;
1111 }
1112
1113 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1114 {
1115 int fd;
1116
1117 fd = qemu_opt_get_number(opts, "fd", -1);
1118 close(fd);
1119
1120 return 0;
1121 }
1122 #endif
1123
1124 /***********************************************************/
1125 /* QEMU Block devices */
1126
1127 #define HD_OPTS "media=disk"
1128 #define CDROM_OPTS "media=cdrom"
1129 #define FD_OPTS ""
1130 #define PFLASH_OPTS ""
1131 #define MTD_OPTS ""
1132 #define SD_OPTS ""
1133
1134 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1135 {
1136 BlockInterfaceType *block_default_type = opaque;
1137
1138 return drive_new(opts, *block_default_type) == NULL;
1139 }
1140
1141 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1142 {
1143 if (qemu_opt_get(opts, "snapshot") == NULL) {
1144 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1145 }
1146 return 0;
1147 }
1148
1149 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1150 int index, const char *optstr)
1151 {
1152 QemuOpts *opts;
1153 DriveInfo *dinfo;
1154
1155 if (!enable || drive_get_by_index(type, index)) {
1156 return;
1157 }
1158
1159 opts = drive_add(type, index, NULL, optstr);
1160 if (snapshot) {
1161 drive_enable_snapshot(NULL, opts, NULL);
1162 }
1163
1164 dinfo = drive_new(opts, type);
1165 if (!dinfo) {
1166 exit(1);
1167 }
1168 dinfo->is_default = true;
1169
1170 }
1171
1172 static QemuOptsList qemu_smp_opts = {
1173 .name = "smp-opts",
1174 .implied_opt_name = "cpus",
1175 .merge_lists = true,
1176 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1177 .desc = {
1178 {
1179 .name = "cpus",
1180 .type = QEMU_OPT_NUMBER,
1181 }, {
1182 .name = "sockets",
1183 .type = QEMU_OPT_NUMBER,
1184 }, {
1185 .name = "cores",
1186 .type = QEMU_OPT_NUMBER,
1187 }, {
1188 .name = "threads",
1189 .type = QEMU_OPT_NUMBER,
1190 }, {
1191 .name = "maxcpus",
1192 .type = QEMU_OPT_NUMBER,
1193 },
1194 { /*End of list */ }
1195 },
1196 };
1197
1198 static void smp_parse(QemuOpts *opts)
1199 {
1200 if (opts) {
1201 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1202 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1203 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1204 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1205
1206 /* compute missing values, prefer sockets over cores over threads */
1207 if (cpus == 0 || sockets == 0) {
1208 sockets = sockets > 0 ? sockets : 1;
1209 cores = cores > 0 ? cores : 1;
1210 threads = threads > 0 ? threads : 1;
1211 if (cpus == 0) {
1212 cpus = cores * threads * sockets;
1213 }
1214 } else if (cores == 0) {
1215 threads = threads > 0 ? threads : 1;
1216 cores = cpus / (sockets * threads);
1217 cores = cores > 0 ? cores : 1;
1218 } else if (threads == 0) {
1219 threads = cpus / (cores * sockets);
1220 threads = threads > 0 ? threads : 1;
1221 } else if (sockets * cores * threads < cpus) {
1222 error_report("cpu topology: "
1223 "sockets (%u) * cores (%u) * threads (%u) < "
1224 "smp_cpus (%u)",
1225 sockets, cores, threads, cpus);
1226 exit(1);
1227 }
1228
1229 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1230
1231 if (max_cpus > MAX_CPUMASK_BITS) {
1232 error_report("unsupported number of maxcpus");
1233 exit(1);
1234 }
1235
1236 if (max_cpus < cpus) {
1237 error_report("maxcpus must be equal to or greater than smp");
1238 exit(1);
1239 }
1240
1241 if (sockets * cores * threads > max_cpus) {
1242 error_report("cpu topology: "
1243 "sockets (%u) * cores (%u) * threads (%u) > "
1244 "maxcpus (%u)",
1245 sockets, cores, threads, max_cpus);
1246 exit(1);
1247 }
1248
1249 smp_cpus = cpus;
1250 smp_cores = cores;
1251 smp_threads = threads;
1252 }
1253
1254 if (smp_cpus > 1) {
1255 Error *blocker = NULL;
1256 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1257 replay_add_blocker(blocker);
1258 }
1259 }
1260
1261 static void realtime_init(void)
1262 {
1263 if (enable_mlock) {
1264 if (os_mlock() < 0) {
1265 error_report("locking memory failed");
1266 exit(1);
1267 }
1268 }
1269 }
1270
1271
1272 static void configure_msg(QemuOpts *opts)
1273 {
1274 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1275 }
1276
1277 /***********************************************************/
1278 /* Semihosting */
1279
1280 typedef struct SemihostingConfig {
1281 bool enabled;
1282 SemihostingTarget target;
1283 const char **argv;
1284 int argc;
1285 const char *cmdline; /* concatenated argv */
1286 } SemihostingConfig;
1287
1288 static SemihostingConfig semihosting;
1289
1290 bool semihosting_enabled(void)
1291 {
1292 return semihosting.enabled;
1293 }
1294
1295 SemihostingTarget semihosting_get_target(void)
1296 {
1297 return semihosting.target;
1298 }
1299
1300 const char *semihosting_get_arg(int i)
1301 {
1302 if (i >= semihosting.argc) {
1303 return NULL;
1304 }
1305 return semihosting.argv[i];
1306 }
1307
1308 int semihosting_get_argc(void)
1309 {
1310 return semihosting.argc;
1311 }
1312
1313 const char *semihosting_get_cmdline(void)
1314 {
1315 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1316 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1317 }
1318 return semihosting.cmdline;
1319 }
1320
1321 static int add_semihosting_arg(void *opaque,
1322 const char *name, const char *val,
1323 Error **errp)
1324 {
1325 SemihostingConfig *s = opaque;
1326 if (strcmp(name, "arg") == 0) {
1327 s->argc++;
1328 /* one extra element as g_strjoinv() expects NULL-terminated array */
1329 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1330 s->argv[s->argc - 1] = val;
1331 s->argv[s->argc] = NULL;
1332 }
1333 return 0;
1334 }
1335
1336 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1337 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1338 {
1339 char *cmd_token;
1340
1341 /* argv[0] */
1342 add_semihosting_arg(&semihosting, "arg", file, NULL);
1343
1344 /* split -append and initialize argv[1..n] */
1345 cmd_token = strtok(g_strdup(cmd), " ");
1346 while (cmd_token) {
1347 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1348 cmd_token = strtok(NULL, " ");
1349 }
1350 }
1351
1352 /* Now we still need this for compatibility with XEN. */
1353 bool has_igd_gfx_passthru;
1354 static void igd_gfx_passthru(void)
1355 {
1356 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1357 }
1358
1359 /***********************************************************/
1360 /* USB devices */
1361
1362 static int usb_device_add(const char *devname)
1363 {
1364 USBDevice *dev = NULL;
1365 #ifndef CONFIG_LINUX
1366 const char *p;
1367 #endif
1368
1369 if (!machine_usb(current_machine)) {
1370 return -1;
1371 }
1372
1373 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1374 dev = usbdevice_create(devname);
1375 if (dev)
1376 goto done;
1377
1378 /* the other ones */
1379 #ifndef CONFIG_LINUX
1380 /* only the linux version is qdev-ified, usb-bsd still needs this */
1381 if (strstart(devname, "host:", &p)) {
1382 dev = usb_host_device_open(usb_bus_find(-1), p);
1383 }
1384 #endif
1385 if (!dev)
1386 return -1;
1387
1388 done:
1389 return 0;
1390 }
1391
1392 static int usb_device_del(const char *devname)
1393 {
1394 int bus_num, addr;
1395 const char *p;
1396
1397 if (strstart(devname, "host:", &p)) {
1398 return -1;
1399 }
1400
1401 if (!machine_usb(current_machine)) {
1402 return -1;
1403 }
1404
1405 p = strchr(devname, '.');
1406 if (!p)
1407 return -1;
1408 bus_num = strtoul(devname, NULL, 0);
1409 addr = strtoul(p + 1, NULL, 0);
1410
1411 return usb_device_delete_addr(bus_num, addr);
1412 }
1413
1414 static int usb_parse(const char *cmdline)
1415 {
1416 int r;
1417 r = usb_device_add(cmdline);
1418 if (r < 0) {
1419 error_report("could not add USB device '%s'", cmdline);
1420 }
1421 return r;
1422 }
1423
1424 void hmp_usb_add(Monitor *mon, const QDict *qdict)
1425 {
1426 const char *devname = qdict_get_str(qdict, "devname");
1427 if (usb_device_add(devname) < 0) {
1428 error_report("could not add USB device '%s'", devname);
1429 }
1430 }
1431
1432 void hmp_usb_del(Monitor *mon, const QDict *qdict)
1433 {
1434 const char *devname = qdict_get_str(qdict, "devname");
1435 if (usb_device_del(devname) < 0) {
1436 error_report("could not delete USB device '%s'", devname);
1437 }
1438 }
1439
1440 /***********************************************************/
1441 /* machine registration */
1442
1443 MachineState *current_machine;
1444
1445 static MachineClass *find_machine(const char *name)
1446 {
1447 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1448 MachineClass *mc = NULL;
1449
1450 for (el = machines; el; el = el->next) {
1451 MachineClass *temp = el->data;
1452
1453 if (!strcmp(temp->name, name)) {
1454 mc = temp;
1455 break;
1456 }
1457 if (temp->alias &&
1458 !strcmp(temp->alias, name)) {
1459 mc = temp;
1460 break;
1461 }
1462 }
1463
1464 g_slist_free(machines);
1465 return mc;
1466 }
1467
1468 MachineClass *find_default_machine(void)
1469 {
1470 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1471 MachineClass *mc = NULL;
1472
1473 for (el = machines; el; el = el->next) {
1474 MachineClass *temp = el->data;
1475
1476 if (temp->is_default) {
1477 mc = temp;
1478 break;
1479 }
1480 }
1481
1482 g_slist_free(machines);
1483 return mc;
1484 }
1485
1486 MachineInfoList *qmp_query_machines(Error **errp)
1487 {
1488 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1489 MachineInfoList *mach_list = NULL;
1490
1491 for (el = machines; el; el = el->next) {
1492 MachineClass *mc = el->data;
1493 MachineInfoList *entry;
1494 MachineInfo *info;
1495
1496 info = g_malloc0(sizeof(*info));
1497 if (mc->is_default) {
1498 info->has_is_default = true;
1499 info->is_default = true;
1500 }
1501
1502 if (mc->alias) {
1503 info->has_alias = true;
1504 info->alias = g_strdup(mc->alias);
1505 }
1506
1507 info->name = g_strdup(mc->name);
1508 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1509 info->hotpluggable_cpus = !!mc->query_hotpluggable_cpus;
1510
1511 entry = g_malloc0(sizeof(*entry));
1512 entry->value = info;
1513 entry->next = mach_list;
1514 mach_list = entry;
1515 }
1516
1517 g_slist_free(machines);
1518 return mach_list;
1519 }
1520
1521 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1522 {
1523 ObjectProperty *prop;
1524 ObjectPropertyIterator iter;
1525
1526 if (!qemu_opt_has_help_opt(opts)) {
1527 return 0;
1528 }
1529
1530 object_property_iter_init(&iter, OBJECT(machine));
1531 while ((prop = object_property_iter_next(&iter))) {
1532 if (!prop->set) {
1533 continue;
1534 }
1535
1536 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1537 prop->name, prop->type);
1538 if (prop->description) {
1539 error_printf(" (%s)\n", prop->description);
1540 } else {
1541 error_printf("\n");
1542 }
1543 }
1544
1545 return 1;
1546 }
1547
1548 /***********************************************************/
1549 /* main execution loop */
1550
1551 struct vm_change_state_entry {
1552 VMChangeStateHandler *cb;
1553 void *opaque;
1554 QLIST_ENTRY (vm_change_state_entry) entries;
1555 };
1556
1557 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1558
1559 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1560 void *opaque)
1561 {
1562 VMChangeStateEntry *e;
1563
1564 e = g_malloc0(sizeof (*e));
1565
1566 e->cb = cb;
1567 e->opaque = opaque;
1568 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1569 return e;
1570 }
1571
1572 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1573 {
1574 QLIST_REMOVE (e, entries);
1575 g_free (e);
1576 }
1577
1578 void vm_state_notify(int running, RunState state)
1579 {
1580 VMChangeStateEntry *e, *next;
1581
1582 trace_vm_state_notify(running, state);
1583
1584 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1585 e->cb(e->opaque, running, state);
1586 }
1587 }
1588
1589 /* reset/shutdown handler */
1590
1591 typedef struct QEMUResetEntry {
1592 QTAILQ_ENTRY(QEMUResetEntry) entry;
1593 QEMUResetHandler *func;
1594 void *opaque;
1595 } QEMUResetEntry;
1596
1597 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1598 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1599 static int reset_requested;
1600 static int shutdown_requested, shutdown_signal = -1;
1601 static pid_t shutdown_pid;
1602 static int powerdown_requested;
1603 static int debug_requested;
1604 static int suspend_requested;
1605 static WakeupReason wakeup_reason;
1606 static NotifierList powerdown_notifiers =
1607 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1608 static NotifierList suspend_notifiers =
1609 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1610 static NotifierList wakeup_notifiers =
1611 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1612 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1613
1614 int qemu_shutdown_requested_get(void)
1615 {
1616 return shutdown_requested;
1617 }
1618
1619 int qemu_reset_requested_get(void)
1620 {
1621 return reset_requested;
1622 }
1623
1624 static int qemu_shutdown_requested(void)
1625 {
1626 return atomic_xchg(&shutdown_requested, 0);
1627 }
1628
1629 static void qemu_kill_report(void)
1630 {
1631 if (!qtest_driver() && shutdown_signal != -1) {
1632 if (shutdown_pid == 0) {
1633 /* This happens for eg ^C at the terminal, so it's worth
1634 * avoiding printing an odd message in that case.
1635 */
1636 error_report("terminating on signal %d", shutdown_signal);
1637 } else {
1638 error_report("terminating on signal %d from pid " FMT_pid,
1639 shutdown_signal, shutdown_pid);
1640 }
1641 shutdown_signal = -1;
1642 }
1643 }
1644
1645 static int qemu_reset_requested(void)
1646 {
1647 int r = reset_requested;
1648 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1649 reset_requested = 0;
1650 return r;
1651 }
1652 return false;
1653 }
1654
1655 static int qemu_suspend_requested(void)
1656 {
1657 int r = suspend_requested;
1658 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1659 suspend_requested = 0;
1660 return r;
1661 }
1662 return false;
1663 }
1664
1665 static WakeupReason qemu_wakeup_requested(void)
1666 {
1667 return wakeup_reason;
1668 }
1669
1670 static int qemu_powerdown_requested(void)
1671 {
1672 int r = powerdown_requested;
1673 powerdown_requested = 0;
1674 return r;
1675 }
1676
1677 static int qemu_debug_requested(void)
1678 {
1679 int r = debug_requested;
1680 debug_requested = 0;
1681 return r;
1682 }
1683
1684 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1685 {
1686 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1687
1688 re->func = func;
1689 re->opaque = opaque;
1690 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1691 }
1692
1693 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1694 {
1695 QEMUResetEntry *re;
1696
1697 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1698 if (re->func == func && re->opaque == opaque) {
1699 QTAILQ_REMOVE(&reset_handlers, re, entry);
1700 g_free(re);
1701 return;
1702 }
1703 }
1704 }
1705
1706 void qemu_devices_reset(void)
1707 {
1708 QEMUResetEntry *re, *nre;
1709
1710 /* reset all devices */
1711 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1712 re->func(re->opaque);
1713 }
1714 }
1715
1716 void qemu_system_reset(bool report)
1717 {
1718 MachineClass *mc;
1719
1720 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1721
1722 cpu_synchronize_all_states();
1723
1724 if (mc && mc->reset) {
1725 mc->reset();
1726 } else {
1727 qemu_devices_reset();
1728 }
1729 if (report) {
1730 qapi_event_send_reset(&error_abort);
1731 }
1732 cpu_synchronize_all_post_reset();
1733 }
1734
1735 void qemu_system_guest_panicked(void)
1736 {
1737 if (current_cpu) {
1738 current_cpu->crash_occurred = true;
1739 }
1740 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, &error_abort);
1741 vm_stop(RUN_STATE_GUEST_PANICKED);
1742 }
1743
1744 void qemu_system_reset_request(void)
1745 {
1746 if (no_reboot) {
1747 shutdown_requested = 1;
1748 } else {
1749 reset_requested = 1;
1750 }
1751 cpu_stop_current();
1752 qemu_notify_event();
1753 }
1754
1755 static void qemu_system_suspend(void)
1756 {
1757 pause_all_vcpus();
1758 notifier_list_notify(&suspend_notifiers, NULL);
1759 runstate_set(RUN_STATE_SUSPENDED);
1760 qapi_event_send_suspend(&error_abort);
1761 }
1762
1763 void qemu_system_suspend_request(void)
1764 {
1765 if (runstate_check(RUN_STATE_SUSPENDED)) {
1766 return;
1767 }
1768 suspend_requested = 1;
1769 cpu_stop_current();
1770 qemu_notify_event();
1771 }
1772
1773 void qemu_register_suspend_notifier(Notifier *notifier)
1774 {
1775 notifier_list_add(&suspend_notifiers, notifier);
1776 }
1777
1778 void qemu_system_wakeup_request(WakeupReason reason)
1779 {
1780 trace_system_wakeup_request(reason);
1781
1782 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1783 return;
1784 }
1785 if (!(wakeup_reason_mask & (1 << reason))) {
1786 return;
1787 }
1788 runstate_set(RUN_STATE_RUNNING);
1789 wakeup_reason = reason;
1790 qemu_notify_event();
1791 }
1792
1793 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1794 {
1795 if (enabled) {
1796 wakeup_reason_mask |= (1 << reason);
1797 } else {
1798 wakeup_reason_mask &= ~(1 << reason);
1799 }
1800 }
1801
1802 void qemu_register_wakeup_notifier(Notifier *notifier)
1803 {
1804 notifier_list_add(&wakeup_notifiers, notifier);
1805 }
1806
1807 void qemu_system_killed(int signal, pid_t pid)
1808 {
1809 shutdown_signal = signal;
1810 shutdown_pid = pid;
1811 no_shutdown = 0;
1812
1813 /* Cannot call qemu_system_shutdown_request directly because
1814 * we are in a signal handler.
1815 */
1816 shutdown_requested = 1;
1817 qemu_notify_event();
1818 }
1819
1820 void qemu_system_shutdown_request(void)
1821 {
1822 trace_qemu_system_shutdown_request();
1823 replay_shutdown_request();
1824 shutdown_requested = 1;
1825 qemu_notify_event();
1826 }
1827
1828 static void qemu_system_powerdown(void)
1829 {
1830 qapi_event_send_powerdown(&error_abort);
1831 notifier_list_notify(&powerdown_notifiers, NULL);
1832 }
1833
1834 void qemu_system_powerdown_request(void)
1835 {
1836 trace_qemu_system_powerdown_request();
1837 powerdown_requested = 1;
1838 qemu_notify_event();
1839 }
1840
1841 void qemu_register_powerdown_notifier(Notifier *notifier)
1842 {
1843 notifier_list_add(&powerdown_notifiers, notifier);
1844 }
1845
1846 void qemu_system_debug_request(void)
1847 {
1848 debug_requested = 1;
1849 qemu_notify_event();
1850 }
1851
1852 static bool main_loop_should_exit(void)
1853 {
1854 RunState r;
1855 if (qemu_debug_requested()) {
1856 vm_stop(RUN_STATE_DEBUG);
1857 }
1858 if (qemu_suspend_requested()) {
1859 qemu_system_suspend();
1860 }
1861 if (qemu_shutdown_requested()) {
1862 qemu_kill_report();
1863 qapi_event_send_shutdown(&error_abort);
1864 if (no_shutdown) {
1865 vm_stop(RUN_STATE_SHUTDOWN);
1866 } else {
1867 return true;
1868 }
1869 }
1870 if (qemu_reset_requested()) {
1871 pause_all_vcpus();
1872 qemu_system_reset(VMRESET_REPORT);
1873 resume_all_vcpus();
1874 if (!runstate_check(RUN_STATE_RUNNING) &&
1875 !runstate_check(RUN_STATE_INMIGRATE)) {
1876 runstate_set(RUN_STATE_PRELAUNCH);
1877 }
1878 }
1879 if (qemu_wakeup_requested()) {
1880 pause_all_vcpus();
1881 qemu_system_reset(VMRESET_SILENT);
1882 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1883 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1884 resume_all_vcpus();
1885 qapi_event_send_wakeup(&error_abort);
1886 }
1887 if (qemu_powerdown_requested()) {
1888 qemu_system_powerdown();
1889 }
1890 if (qemu_vmstop_requested(&r)) {
1891 vm_stop(r);
1892 }
1893 return false;
1894 }
1895
1896 static void main_loop(void)
1897 {
1898 bool nonblocking;
1899 int last_io = 0;
1900 #ifdef CONFIG_PROFILER
1901 int64_t ti;
1902 #endif
1903 do {
1904 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
1905 #ifdef CONFIG_PROFILER
1906 ti = profile_getclock();
1907 #endif
1908 last_io = main_loop_wait(nonblocking);
1909 #ifdef CONFIG_PROFILER
1910 dev_time += profile_getclock() - ti;
1911 #endif
1912 } while (!main_loop_should_exit());
1913 }
1914
1915 static void version(void)
1916 {
1917 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1918 }
1919
1920 static void help(int exitcode)
1921 {
1922 version();
1923 printf("usage: %s [options] [disk_image]\n\n"
1924 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1925 error_get_progname());
1926
1927 #define QEMU_OPTIONS_GENERATE_HELP
1928 #include "qemu-options-wrapper.h"
1929
1930 printf("\nDuring emulation, the following keys are useful:\n"
1931 "ctrl-alt-f toggle full screen\n"
1932 "ctrl-alt-n switch to virtual console 'n'\n"
1933 "ctrl-alt toggle mouse and keyboard grab\n"
1934 "\n"
1935 "When using -nographic, press 'ctrl-a h' to get some help.\n");
1936
1937 exit(exitcode);
1938 }
1939
1940 #define HAS_ARG 0x0001
1941
1942 typedef struct QEMUOption {
1943 const char *name;
1944 int flags;
1945 int index;
1946 uint32_t arch_mask;
1947 } QEMUOption;
1948
1949 static const QEMUOption qemu_options[] = {
1950 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1951 #define QEMU_OPTIONS_GENERATE_OPTIONS
1952 #include "qemu-options-wrapper.h"
1953 { NULL },
1954 };
1955
1956 typedef struct VGAInterfaceInfo {
1957 const char *opt_name; /* option name */
1958 const char *name; /* human-readable name */
1959 /* Class names indicating that support is available.
1960 * If no class is specified, the interface is always available */
1961 const char *class_names[2];
1962 } VGAInterfaceInfo;
1963
1964 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1965 [VGA_NONE] = {
1966 .opt_name = "none",
1967 },
1968 [VGA_STD] = {
1969 .opt_name = "std",
1970 .name = "standard VGA",
1971 .class_names = { "VGA", "isa-vga" },
1972 },
1973 [VGA_CIRRUS] = {
1974 .opt_name = "cirrus",
1975 .name = "Cirrus VGA",
1976 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1977 },
1978 [VGA_VMWARE] = {
1979 .opt_name = "vmware",
1980 .name = "VMWare SVGA",
1981 .class_names = { "vmware-svga" },
1982 },
1983 [VGA_VIRTIO] = {
1984 .opt_name = "virtio",
1985 .name = "Virtio VGA",
1986 .class_names = { "virtio-vga" },
1987 },
1988 [VGA_QXL] = {
1989 .opt_name = "qxl",
1990 .name = "QXL VGA",
1991 .class_names = { "qxl-vga" },
1992 },
1993 [VGA_TCX] = {
1994 .opt_name = "tcx",
1995 .name = "TCX framebuffer",
1996 .class_names = { "SUNW,tcx" },
1997 },
1998 [VGA_CG3] = {
1999 .opt_name = "cg3",
2000 .name = "CG3 framebuffer",
2001 .class_names = { "cgthree" },
2002 },
2003 [VGA_XENFB] = {
2004 .opt_name = "xenfb",
2005 },
2006 };
2007
2008 static bool vga_interface_available(VGAInterfaceType t)
2009 {
2010 VGAInterfaceInfo *ti = &vga_interfaces[t];
2011
2012 assert(t < VGA_TYPE_MAX);
2013 return !ti->class_names[0] ||
2014 object_class_by_name(ti->class_names[0]) ||
2015 object_class_by_name(ti->class_names[1]);
2016 }
2017
2018 static void select_vgahw(const char *p)
2019 {
2020 const char *opts;
2021 int t;
2022
2023 assert(vga_interface_type == VGA_NONE);
2024 for (t = 0; t < VGA_TYPE_MAX; t++) {
2025 VGAInterfaceInfo *ti = &vga_interfaces[t];
2026 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2027 if (!vga_interface_available(t)) {
2028 error_report("%s not available", ti->name);
2029 exit(1);
2030 }
2031 vga_interface_type = t;
2032 break;
2033 }
2034 }
2035 if (t == VGA_TYPE_MAX) {
2036 invalid_vga:
2037 error_report("unknown vga type: %s", p);
2038 exit(1);
2039 }
2040 while (*opts) {
2041 const char *nextopt;
2042
2043 if (strstart(opts, ",retrace=", &nextopt)) {
2044 opts = nextopt;
2045 if (strstart(opts, "dumb", &nextopt))
2046 vga_retrace_method = VGA_RETRACE_DUMB;
2047 else if (strstart(opts, "precise", &nextopt))
2048 vga_retrace_method = VGA_RETRACE_PRECISE;
2049 else goto invalid_vga;
2050 } else goto invalid_vga;
2051 opts = nextopt;
2052 }
2053 }
2054
2055 typedef enum DisplayType {
2056 DT_DEFAULT,
2057 DT_CURSES,
2058 DT_SDL,
2059 DT_COCOA,
2060 DT_GTK,
2061 DT_NONE,
2062 } DisplayType;
2063
2064 static DisplayType select_display(const char *p)
2065 {
2066 const char *opts;
2067 DisplayType display = DT_DEFAULT;
2068
2069 if (strstart(p, "sdl", &opts)) {
2070 #ifdef CONFIG_SDL
2071 display = DT_SDL;
2072 while (*opts) {
2073 const char *nextopt;
2074
2075 if (strstart(opts, ",frame=", &nextopt)) {
2076 opts = nextopt;
2077 if (strstart(opts, "on", &nextopt)) {
2078 no_frame = 0;
2079 } else if (strstart(opts, "off", &nextopt)) {
2080 no_frame = 1;
2081 } else {
2082 goto invalid_sdl_args;
2083 }
2084 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2085 opts = nextopt;
2086 if (strstart(opts, "on", &nextopt)) {
2087 alt_grab = 1;
2088 } else if (strstart(opts, "off", &nextopt)) {
2089 alt_grab = 0;
2090 } else {
2091 goto invalid_sdl_args;
2092 }
2093 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2094 opts = nextopt;
2095 if (strstart(opts, "on", &nextopt)) {
2096 ctrl_grab = 1;
2097 } else if (strstart(opts, "off", &nextopt)) {
2098 ctrl_grab = 0;
2099 } else {
2100 goto invalid_sdl_args;
2101 }
2102 } else if (strstart(opts, ",window_close=", &nextopt)) {
2103 opts = nextopt;
2104 if (strstart(opts, "on", &nextopt)) {
2105 no_quit = 0;
2106 } else if (strstart(opts, "off", &nextopt)) {
2107 no_quit = 1;
2108 } else {
2109 goto invalid_sdl_args;
2110 }
2111 } else if (strstart(opts, ",gl=", &nextopt)) {
2112 opts = nextopt;
2113 if (strstart(opts, "on", &nextopt)) {
2114 request_opengl = 1;
2115 } else if (strstart(opts, "off", &nextopt)) {
2116 request_opengl = 0;
2117 } else {
2118 goto invalid_sdl_args;
2119 }
2120 } else {
2121 invalid_sdl_args:
2122 error_report("invalid SDL option string");
2123 exit(1);
2124 }
2125 opts = nextopt;
2126 }
2127 #else
2128 error_report("SDL support is disabled");
2129 exit(1);
2130 #endif
2131 } else if (strstart(p, "vnc", &opts)) {
2132 if (*opts == '=') {
2133 vnc_parse(opts + 1, &error_fatal);
2134 } else {
2135 error_report("VNC requires a display argument vnc=<display>");
2136 exit(1);
2137 }
2138 } else if (strstart(p, "curses", &opts)) {
2139 #ifdef CONFIG_CURSES
2140 display = DT_CURSES;
2141 #else
2142 error_report("curses support is disabled");
2143 exit(1);
2144 #endif
2145 } else if (strstart(p, "gtk", &opts)) {
2146 #ifdef CONFIG_GTK
2147 display = DT_GTK;
2148 while (*opts) {
2149 const char *nextopt;
2150
2151 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2152 opts = nextopt;
2153 if (strstart(opts, "on", &nextopt)) {
2154 grab_on_hover = true;
2155 } else if (strstart(opts, "off", &nextopt)) {
2156 grab_on_hover = false;
2157 } else {
2158 goto invalid_gtk_args;
2159 }
2160 } else if (strstart(opts, ",gl=", &nextopt)) {
2161 opts = nextopt;
2162 if (strstart(opts, "on", &nextopt)) {
2163 request_opengl = 1;
2164 } else if (strstart(opts, "off", &nextopt)) {
2165 request_opengl = 0;
2166 } else {
2167 goto invalid_gtk_args;
2168 }
2169 } else {
2170 invalid_gtk_args:
2171 error_report("invalid GTK option string");
2172 exit(1);
2173 }
2174 opts = nextopt;
2175 }
2176 #else
2177 error_report("GTK support is disabled");
2178 exit(1);
2179 #endif
2180 } else if (strstart(p, "none", &opts)) {
2181 display = DT_NONE;
2182 } else {
2183 error_report("unknown display type");
2184 exit(1);
2185 }
2186
2187 return display;
2188 }
2189
2190 static int balloon_parse(const char *arg)
2191 {
2192 QemuOpts *opts;
2193
2194 if (strcmp(arg, "none") == 0) {
2195 return 0;
2196 }
2197
2198 if (!strncmp(arg, "virtio", 6)) {
2199 if (arg[6] == ',') {
2200 /* have params -> parse them */
2201 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2202 false);
2203 if (!opts)
2204 return -1;
2205 } else {
2206 /* create empty opts */
2207 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2208 &error_abort);
2209 }
2210 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2211 return 0;
2212 }
2213
2214 return -1;
2215 }
2216
2217 char *qemu_find_file(int type, const char *name)
2218 {
2219 int i;
2220 const char *subdir;
2221 char *buf;
2222
2223 /* Try the name as a straight path first */
2224 if (access(name, R_OK) == 0) {
2225 trace_load_file(name, name);
2226 return g_strdup(name);
2227 }
2228
2229 switch (type) {
2230 case QEMU_FILE_TYPE_BIOS:
2231 subdir = "";
2232 break;
2233 case QEMU_FILE_TYPE_KEYMAP:
2234 subdir = "keymaps/";
2235 break;
2236 default:
2237 abort();
2238 }
2239
2240 for (i = 0; i < data_dir_idx; i++) {
2241 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2242 if (access(buf, R_OK) == 0) {
2243 trace_load_file(name, buf);
2244 return buf;
2245 }
2246 g_free(buf);
2247 }
2248 return NULL;
2249 }
2250
2251 static inline bool nonempty_str(const char *str)
2252 {
2253 return str && *str;
2254 }
2255
2256 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2257 {
2258 gchar *buf;
2259 size_t size;
2260 const char *name, *file, *str;
2261 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2262
2263 if (fw_cfg == NULL) {
2264 error_report("fw_cfg device not available");
2265 return -1;
2266 }
2267 name = qemu_opt_get(opts, "name");
2268 file = qemu_opt_get(opts, "file");
2269 str = qemu_opt_get(opts, "string");
2270
2271 /* we need name and either a file or the content string */
2272 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2273 error_report("invalid argument(s)");
2274 return -1;
2275 }
2276 if (nonempty_str(file) && nonempty_str(str)) {
2277 error_report("file and string are mutually exclusive");
2278 return -1;
2279 }
2280 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2281 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2282 return -1;
2283 }
2284 if (strncmp(name, "opt/", 4) != 0) {
2285 error_report("warning: externally provided fw_cfg item names "
2286 "should be prefixed with \"opt/\"");
2287 }
2288 if (nonempty_str(str)) {
2289 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2290 buf = g_memdup(str, size);
2291 } else {
2292 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2293 error_report("can't load %s", file);
2294 return -1;
2295 }
2296 }
2297 /* For legacy, keep user files in a specific global order. */
2298 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2299 fw_cfg_add_file(fw_cfg, name, buf, size);
2300 fw_cfg_reset_order_override(fw_cfg);
2301 return 0;
2302 }
2303
2304 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2305 {
2306 return qdev_device_help(opts);
2307 }
2308
2309 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2310 {
2311 Error *err = NULL;
2312 DeviceState *dev;
2313
2314 dev = qdev_device_add(opts, &err);
2315 if (!dev) {
2316 error_report_err(err);
2317 return -1;
2318 }
2319 object_unref(OBJECT(dev));
2320 return 0;
2321 }
2322
2323 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2324 {
2325 Error *local_err = NULL;
2326
2327 qemu_chr_new_from_opts(opts, NULL, &local_err);
2328 if (local_err) {
2329 error_report_err(local_err);
2330 return -1;
2331 }
2332 return 0;
2333 }
2334
2335 #ifdef CONFIG_VIRTFS
2336 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2337 {
2338 return qemu_fsdev_add(opts);
2339 }
2340 #endif
2341
2342 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2343 {
2344 CharDriverState *chr;
2345 const char *chardev;
2346 const char *mode;
2347 int flags;
2348
2349 mode = qemu_opt_get(opts, "mode");
2350 if (mode == NULL) {
2351 mode = "readline";
2352 }
2353 if (strcmp(mode, "readline") == 0) {
2354 flags = MONITOR_USE_READLINE;
2355 } else if (strcmp(mode, "control") == 0) {
2356 flags = MONITOR_USE_CONTROL;
2357 } else {
2358 error_report("unknown monitor mode \"%s\"", mode);
2359 exit(1);
2360 }
2361
2362 if (qemu_opt_get_bool(opts, "pretty", 0))
2363 flags |= MONITOR_USE_PRETTY;
2364
2365 if (qemu_opt_get_bool(opts, "default", 0))
2366 flags |= MONITOR_IS_DEFAULT;
2367
2368 chardev = qemu_opt_get(opts, "chardev");
2369 chr = qemu_chr_find(chardev);
2370 if (chr == NULL) {
2371 error_report("chardev \"%s\" not found", chardev);
2372 exit(1);
2373 }
2374
2375 qemu_chr_fe_claim_no_fail(chr);
2376 monitor_init(chr, flags);
2377 return 0;
2378 }
2379
2380 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2381 {
2382 static int monitor_device_index = 0;
2383 QemuOpts *opts;
2384 const char *p;
2385 char label[32];
2386 int def = 0;
2387
2388 if (strstart(optarg, "chardev:", &p)) {
2389 snprintf(label, sizeof(label), "%s", p);
2390 } else {
2391 snprintf(label, sizeof(label), "compat_monitor%d",
2392 monitor_device_index);
2393 if (monitor_device_index == 0) {
2394 def = 1;
2395 }
2396 opts = qemu_chr_parse_compat(label, optarg);
2397 if (!opts) {
2398 error_report("parse error: %s", optarg);
2399 exit(1);
2400 }
2401 }
2402
2403 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2404 qemu_opt_set(opts, "mode", mode, &error_abort);
2405 qemu_opt_set(opts, "chardev", label, &error_abort);
2406 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2407 if (def)
2408 qemu_opt_set(opts, "default", "on", &error_abort);
2409 monitor_device_index++;
2410 }
2411
2412 struct device_config {
2413 enum {
2414 DEV_USB, /* -usbdevice */
2415 DEV_BT, /* -bt */
2416 DEV_SERIAL, /* -serial */
2417 DEV_PARALLEL, /* -parallel */
2418 DEV_VIRTCON, /* -virtioconsole */
2419 DEV_DEBUGCON, /* -debugcon */
2420 DEV_GDB, /* -gdb, -s */
2421 DEV_SCLP, /* s390 sclp */
2422 } type;
2423 const char *cmdline;
2424 Location loc;
2425 QTAILQ_ENTRY(device_config) next;
2426 };
2427
2428 static QTAILQ_HEAD(, device_config) device_configs =
2429 QTAILQ_HEAD_INITIALIZER(device_configs);
2430
2431 static void add_device_config(int type, const char *cmdline)
2432 {
2433 struct device_config *conf;
2434
2435 conf = g_malloc0(sizeof(*conf));
2436 conf->type = type;
2437 conf->cmdline = cmdline;
2438 loc_save(&conf->loc);
2439 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2440 }
2441
2442 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2443 {
2444 struct device_config *conf;
2445 int rc;
2446
2447 QTAILQ_FOREACH(conf, &device_configs, next) {
2448 if (conf->type != type)
2449 continue;
2450 loc_push_restore(&conf->loc);
2451 rc = func(conf->cmdline);
2452 loc_pop(&conf->loc);
2453 if (rc) {
2454 return rc;
2455 }
2456 }
2457 return 0;
2458 }
2459
2460 static int serial_parse(const char *devname)
2461 {
2462 static int index = 0;
2463 char label[32];
2464
2465 if (strcmp(devname, "none") == 0)
2466 return 0;
2467 if (index == MAX_SERIAL_PORTS) {
2468 error_report("too many serial ports");
2469 exit(1);
2470 }
2471 snprintf(label, sizeof(label), "serial%d", index);
2472 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2473 if (!serial_hds[index]) {
2474 error_report("could not connect serial device"
2475 " to character backend '%s'", devname);
2476 return -1;
2477 }
2478 index++;
2479 return 0;
2480 }
2481
2482 static int parallel_parse(const char *devname)
2483 {
2484 static int index = 0;
2485 char label[32];
2486
2487 if (strcmp(devname, "none") == 0)
2488 return 0;
2489 if (index == MAX_PARALLEL_PORTS) {
2490 error_report("too many parallel ports");
2491 exit(1);
2492 }
2493 snprintf(label, sizeof(label), "parallel%d", index);
2494 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2495 if (!parallel_hds[index]) {
2496 error_report("could not connect parallel device"
2497 " to character backend '%s'", devname);
2498 return -1;
2499 }
2500 index++;
2501 return 0;
2502 }
2503
2504 static int virtcon_parse(const char *devname)
2505 {
2506 QemuOptsList *device = qemu_find_opts("device");
2507 static int index = 0;
2508 char label[32];
2509 QemuOpts *bus_opts, *dev_opts;
2510
2511 if (strcmp(devname, "none") == 0)
2512 return 0;
2513 if (index == MAX_VIRTIO_CONSOLES) {
2514 error_report("too many virtio consoles");
2515 exit(1);
2516 }
2517
2518 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2519 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2520
2521 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2522 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2523
2524 snprintf(label, sizeof(label), "virtcon%d", index);
2525 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2526 if (!virtcon_hds[index]) {
2527 error_report("could not connect virtio console"
2528 " to character backend '%s'", devname);
2529 return -1;
2530 }
2531 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2532
2533 index++;
2534 return 0;
2535 }
2536
2537 static int sclp_parse(const char *devname)
2538 {
2539 QemuOptsList *device = qemu_find_opts("device");
2540 static int index = 0;
2541 char label[32];
2542 QemuOpts *dev_opts;
2543
2544 if (strcmp(devname, "none") == 0) {
2545 return 0;
2546 }
2547 if (index == MAX_SCLP_CONSOLES) {
2548 error_report("too many sclp consoles");
2549 exit(1);
2550 }
2551
2552 assert(arch_type == QEMU_ARCH_S390X);
2553
2554 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2555 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2556
2557 snprintf(label, sizeof(label), "sclpcon%d", index);
2558 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2559 if (!sclp_hds[index]) {
2560 error_report("could not connect sclp console"
2561 " to character backend '%s'", devname);
2562 return -1;
2563 }
2564 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2565
2566 index++;
2567 return 0;
2568 }
2569
2570 static int debugcon_parse(const char *devname)
2571 {
2572 QemuOpts *opts;
2573
2574 if (!qemu_chr_new("debugcon", devname, NULL)) {
2575 exit(1);
2576 }
2577 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2578 if (!opts) {
2579 error_report("already have a debugcon device");
2580 exit(1);
2581 }
2582 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2583 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2584 return 0;
2585 }
2586
2587 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2588 {
2589 const MachineClass *mc1 = a, *mc2 = b;
2590 int res;
2591
2592 if (mc1->family == NULL) {
2593 if (mc2->family == NULL) {
2594 /* Compare standalone machine types against each other; they sort
2595 * in increasing order.
2596 */
2597 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2598 object_class_get_name(OBJECT_CLASS(mc2)));
2599 }
2600
2601 /* Standalone machine types sort after families. */
2602 return 1;
2603 }
2604
2605 if (mc2->family == NULL) {
2606 /* Families sort before standalone machine types. */
2607 return -1;
2608 }
2609
2610 /* Families sort between each other alphabetically increasingly. */
2611 res = strcmp(mc1->family, mc2->family);
2612 if (res != 0) {
2613 return res;
2614 }
2615
2616 /* Within the same family, machine types sort in decreasing order. */
2617 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2618 object_class_get_name(OBJECT_CLASS(mc1)));
2619 }
2620
2621 static MachineClass *machine_parse(const char *name)
2622 {
2623 MachineClass *mc = NULL;
2624 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2625
2626 if (name) {
2627 mc = find_machine(name);
2628 }
2629 if (mc) {
2630 g_slist_free(machines);
2631 return mc;
2632 }
2633 if (name && !is_help_option(name)) {
2634 error_report("unsupported machine type");
2635 error_printf("Use -machine help to list supported machines\n");
2636 } else {
2637 printf("Supported machines are:\n");
2638 machines = g_slist_sort(machines, machine_class_cmp);
2639 for (el = machines; el; el = el->next) {
2640 MachineClass *mc = el->data;
2641 if (mc->alias) {
2642 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2643 }
2644 printf("%-20s %s%s\n", mc->name, mc->desc,
2645 mc->is_default ? " (default)" : "");
2646 }
2647 }
2648
2649 g_slist_free(machines);
2650 exit(!name || !is_help_option(name));
2651 }
2652
2653 void qemu_add_exit_notifier(Notifier *notify)
2654 {
2655 notifier_list_add(&exit_notifiers, notify);
2656 }
2657
2658 void qemu_remove_exit_notifier(Notifier *notify)
2659 {
2660 notifier_remove(notify);
2661 }
2662
2663 static void qemu_run_exit_notifiers(void)
2664 {
2665 notifier_list_notify(&exit_notifiers, NULL);
2666 }
2667
2668 static bool machine_init_done;
2669
2670 void qemu_add_machine_init_done_notifier(Notifier *notify)
2671 {
2672 notifier_list_add(&machine_init_done_notifiers, notify);
2673 if (machine_init_done) {
2674 notify->notify(notify, NULL);
2675 }
2676 }
2677
2678 static void qemu_run_machine_init_done_notifiers(void)
2679 {
2680 notifier_list_notify(&machine_init_done_notifiers, NULL);
2681 machine_init_done = true;
2682 }
2683
2684 static const QEMUOption *lookup_opt(int argc, char **argv,
2685 const char **poptarg, int *poptind)
2686 {
2687 const QEMUOption *popt;
2688 int optind = *poptind;
2689 char *r = argv[optind];
2690 const char *optarg;
2691
2692 loc_set_cmdline(argv, optind, 1);
2693 optind++;
2694 /* Treat --foo the same as -foo. */
2695 if (r[1] == '-')
2696 r++;
2697 popt = qemu_options;
2698 for(;;) {
2699 if (!popt->name) {
2700 error_report("invalid option");
2701 exit(1);
2702 }
2703 if (!strcmp(popt->name, r + 1))
2704 break;
2705 popt++;
2706 }
2707 if (popt->flags & HAS_ARG) {
2708 if (optind >= argc) {
2709 error_report("requires an argument");
2710 exit(1);
2711 }
2712 optarg = argv[optind++];
2713 loc_set_cmdline(argv, optind - 2, 2);
2714 } else {
2715 optarg = NULL;
2716 }
2717
2718 *poptarg = optarg;
2719 *poptind = optind;
2720
2721 return popt;
2722 }
2723
2724 static MachineClass *select_machine(void)
2725 {
2726 MachineClass *machine_class = find_default_machine();
2727 const char *optarg;
2728 QemuOpts *opts;
2729 Location loc;
2730
2731 loc_push_none(&loc);
2732
2733 opts = qemu_get_machine_opts();
2734 qemu_opts_loc_restore(opts);
2735
2736 optarg = qemu_opt_get(opts, "type");
2737 if (optarg) {
2738 machine_class = machine_parse(optarg);
2739 }
2740
2741 if (!machine_class) {
2742 error_report("No machine specified, and there is no default");
2743 error_printf("Use -machine help to list supported machines\n");
2744 exit(1);
2745 }
2746
2747 loc_pop(&loc);
2748 return machine_class;
2749 }
2750
2751 static int machine_set_property(void *opaque,
2752 const char *name, const char *value,
2753 Error **errp)
2754 {
2755 Object *obj = OBJECT(opaque);
2756 Error *local_err = NULL;
2757 char *c, *qom_name;
2758
2759 if (strcmp(name, "type") == 0) {
2760 return 0;
2761 }
2762
2763 qom_name = g_strdup(name);
2764 c = qom_name;
2765 while (*c++) {
2766 if (*c == '_') {
2767 *c = '-';
2768 }
2769 }
2770
2771 object_property_parse(obj, value, qom_name, &local_err);
2772 g_free(qom_name);
2773
2774 if (local_err) {
2775 error_report_err(local_err);
2776 return -1;
2777 }
2778
2779 return 0;
2780 }
2781
2782
2783 /*
2784 * Initial object creation happens before all other
2785 * QEMU data types are created. The majority of objects
2786 * can be created at this point. The rng-egd object
2787 * cannot be created here, as it depends on the chardev
2788 * already existing.
2789 */
2790 static bool object_create_initial(const char *type)
2791 {
2792 if (g_str_equal(type, "rng-egd")) {
2793 return false;
2794 }
2795
2796 /*
2797 * return false for concrete netfilters since
2798 * they depend on netdevs already existing
2799 */
2800 if (g_str_equal(type, "filter-buffer") ||
2801 g_str_equal(type, "filter-dump") ||
2802 g_str_equal(type, "filter-mirror") ||
2803 g_str_equal(type, "filter-redirector")) {
2804 return false;
2805 }
2806
2807 return true;
2808 }
2809
2810
2811 /*
2812 * The remainder of object creation happens after the
2813 * creation of chardev, fsdev, net clients and device data types.
2814 */
2815 static bool object_create_delayed(const char *type)
2816 {
2817 return !object_create_initial(type);
2818 }
2819
2820
2821 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2822 MachineClass *mc)
2823 {
2824 uint64_t sz;
2825 const char *mem_str;
2826 const char *maxmem_str, *slots_str;
2827 const ram_addr_t default_ram_size = mc->default_ram_size;
2828 QemuOpts *opts = qemu_find_opts_singleton("memory");
2829 Location loc;
2830
2831 loc_push_none(&loc);
2832 qemu_opts_loc_restore(opts);
2833
2834 sz = 0;
2835 mem_str = qemu_opt_get(opts, "size");
2836 if (mem_str) {
2837 if (!*mem_str) {
2838 error_report("missing 'size' option value");
2839 exit(EXIT_FAILURE);
2840 }
2841
2842 sz = qemu_opt_get_size(opts, "size", ram_size);
2843
2844 /* Fix up legacy suffix-less format */
2845 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2846 uint64_t overflow_check = sz;
2847
2848 sz <<= 20;
2849 if ((sz >> 20) != overflow_check) {
2850 error_report("too large 'size' option value");
2851 exit(EXIT_FAILURE);
2852 }
2853 }
2854 }
2855
2856 /* backward compatibility behaviour for case "-m 0" */
2857 if (sz == 0) {
2858 sz = default_ram_size;
2859 }
2860
2861 sz = QEMU_ALIGN_UP(sz, 8192);
2862 ram_size = sz;
2863 if (ram_size != sz) {
2864 error_report("ram size too large");
2865 exit(EXIT_FAILURE);
2866 }
2867
2868 /* store value for the future use */
2869 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2870 *maxram_size = ram_size;
2871
2872 maxmem_str = qemu_opt_get(opts, "maxmem");
2873 slots_str = qemu_opt_get(opts, "slots");
2874 if (maxmem_str && slots_str) {
2875 uint64_t slots;
2876
2877 sz = qemu_opt_get_size(opts, "maxmem", 0);
2878 slots = qemu_opt_get_number(opts, "slots", 0);
2879 if (sz < ram_size) {
2880 error_report("invalid value of -m option maxmem: "
2881 "maximum memory size (0x%" PRIx64 ") must be at least "
2882 "the initial memory size (0x" RAM_ADDR_FMT ")",
2883 sz, ram_size);
2884 exit(EXIT_FAILURE);
2885 } else if (sz > ram_size) {
2886 if (!slots) {
2887 error_report("invalid value of -m option: maxmem was "
2888 "specified, but no hotplug slots were specified");
2889 exit(EXIT_FAILURE);
2890 }
2891 } else if (slots) {
2892 error_report("invalid value of -m option maxmem: "
2893 "memory slots were specified but maximum memory size "
2894 "(0x%" PRIx64 ") is equal to the initial memory size "
2895 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2896 exit(EXIT_FAILURE);
2897 }
2898
2899 *maxram_size = sz;
2900 *ram_slots = slots;
2901 } else if ((!maxmem_str && slots_str) ||
2902 (maxmem_str && !slots_str)) {
2903 error_report("invalid -m option value: missing "
2904 "'%s' option", slots_str ? "maxmem" : "slots");
2905 exit(EXIT_FAILURE);
2906 }
2907
2908 loc_pop(&loc);
2909 }
2910
2911 int main(int argc, char **argv, char **envp)
2912 {
2913 int i;
2914 int snapshot, linux_boot;
2915 const char *initrd_filename;
2916 const char *kernel_filename, *kernel_cmdline;
2917 const char *boot_order = NULL;
2918 const char *boot_once = NULL;
2919 DisplayState *ds;
2920 int cyls, heads, secs, translation;
2921 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
2922 QemuOptsList *olist;
2923 int optind;
2924 const char *optarg;
2925 const char *loadvm = NULL;
2926 MachineClass *machine_class;
2927 const char *cpu_model;
2928 const char *vga_model = NULL;
2929 const char *qtest_chrdev = NULL;
2930 const char *qtest_log = NULL;
2931 const char *pid_file = NULL;
2932 const char *incoming = NULL;
2933 bool defconfig = true;
2934 bool userconfig = true;
2935 bool nographic = false;
2936 DisplayType display_type = DT_DEFAULT;
2937 int display_remote = 0;
2938 const char *log_mask = NULL;
2939 const char *log_file = NULL;
2940 char *trace_file = NULL;
2941 ram_addr_t maxram_size;
2942 uint64_t ram_slots = 0;
2943 FILE *vmstate_dump_file = NULL;
2944 Error *main_loop_err = NULL;
2945 Error *err = NULL;
2946 bool list_data_dirs = false;
2947
2948 qemu_init_cpu_loop();
2949 qemu_mutex_lock_iothread();
2950
2951 atexit(qemu_run_exit_notifiers);
2952 error_set_progname(argv[0]);
2953 qemu_init_exec_dir(argv[0]);
2954
2955 module_call_init(MODULE_INIT_QOM);
2956
2957 qemu_add_opts(&qemu_drive_opts);
2958 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2959 qemu_add_drive_opts(&qemu_common_drive_opts);
2960 qemu_add_drive_opts(&qemu_drive_opts);
2961 qemu_add_opts(&qemu_chardev_opts);
2962 qemu_add_opts(&qemu_device_opts);
2963 qemu_add_opts(&qemu_netdev_opts);
2964 qemu_add_opts(&qemu_net_opts);
2965 qemu_add_opts(&qemu_rtc_opts);
2966 qemu_add_opts(&qemu_global_opts);
2967 qemu_add_opts(&qemu_mon_opts);
2968 qemu_add_opts(&qemu_trace_opts);
2969 qemu_add_opts(&qemu_option_rom_opts);
2970 qemu_add_opts(&qemu_machine_opts);
2971 qemu_add_opts(&qemu_mem_opts);
2972 qemu_add_opts(&qemu_smp_opts);
2973 qemu_add_opts(&qemu_boot_opts);
2974 qemu_add_opts(&qemu_sandbox_opts);
2975 qemu_add_opts(&qemu_add_fd_opts);
2976 qemu_add_opts(&qemu_object_opts);
2977 qemu_add_opts(&qemu_tpmdev_opts);
2978 qemu_add_opts(&qemu_realtime_opts);
2979 qemu_add_opts(&qemu_msg_opts);
2980 qemu_add_opts(&qemu_name_opts);
2981 qemu_add_opts(&qemu_numa_opts);
2982 qemu_add_opts(&qemu_icount_opts);
2983 qemu_add_opts(&qemu_semihosting_config_opts);
2984 qemu_add_opts(&qemu_fw_cfg_opts);
2985 module_call_init(MODULE_INIT_OPTS);
2986
2987 runstate_init();
2988
2989 if (qcrypto_init(&err) < 0) {
2990 error_reportf_err(err, "cannot initialize crypto: ");
2991 exit(1);
2992 }
2993 rtc_clock = QEMU_CLOCK_HOST;
2994
2995 QLIST_INIT (&vm_change_state_head);
2996 os_setup_early_signal_handling();
2997
2998 cpu_model = NULL;
2999 snapshot = 0;
3000 cyls = heads = secs = 0;
3001 translation = BIOS_ATA_TRANSLATION_AUTO;
3002
3003 nb_nics = 0;
3004
3005 bdrv_init_with_whitelist();
3006
3007 autostart = 1;
3008
3009 /* first pass of option parsing */
3010 optind = 1;
3011 while (optind < argc) {
3012 if (argv[optind][0] != '-') {
3013 /* disk image */
3014 optind++;
3015 } else {
3016 const QEMUOption *popt;
3017
3018 popt = lookup_opt(argc, argv, &optarg, &optind);
3019 switch (popt->index) {
3020 case QEMU_OPTION_nodefconfig:
3021 defconfig = false;
3022 break;
3023 case QEMU_OPTION_nouserconfig:
3024 userconfig = false;
3025 break;
3026 }
3027 }
3028 }
3029
3030 if (defconfig) {
3031 int ret;
3032 ret = qemu_read_default_config_files(userconfig);
3033 if (ret < 0) {
3034 exit(1);
3035 }
3036 }
3037
3038 /* second pass of option parsing */
3039 optind = 1;
3040 for(;;) {
3041 if (optind >= argc)
3042 break;
3043 if (argv[optind][0] != '-') {
3044 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3045 } else {
3046 const QEMUOption *popt;
3047
3048 popt = lookup_opt(argc, argv, &optarg, &optind);
3049 if (!(popt->arch_mask & arch_type)) {
3050 error_report("Option not supported for this target");
3051 exit(1);
3052 }
3053 switch(popt->index) {
3054 case QEMU_OPTION_no_kvm_irqchip: {
3055 olist = qemu_find_opts("machine");
3056 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3057 break;
3058 }
3059 case QEMU_OPTION_cpu:
3060 /* hw initialization will check this */
3061 cpu_model = optarg;
3062 break;
3063 case QEMU_OPTION_hda:
3064 {
3065 char buf[256];
3066 if (cyls == 0)
3067 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3068 else
3069 snprintf(buf, sizeof(buf),
3070 "%s,cyls=%d,heads=%d,secs=%d%s",
3071 HD_OPTS , cyls, heads, secs,
3072 translation == BIOS_ATA_TRANSLATION_LBA ?
3073 ",trans=lba" :
3074 translation == BIOS_ATA_TRANSLATION_NONE ?
3075 ",trans=none" : "");
3076 drive_add(IF_DEFAULT, 0, optarg, buf);
3077 break;
3078 }
3079 case QEMU_OPTION_hdb:
3080 case QEMU_OPTION_hdc:
3081 case QEMU_OPTION_hdd:
3082 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3083 HD_OPTS);
3084 break;
3085 case QEMU_OPTION_drive:
3086 if (drive_def(optarg) == NULL) {
3087 exit(1);
3088 }
3089 break;
3090 case QEMU_OPTION_set:
3091 if (qemu_set_option(optarg) != 0)
3092 exit(1);
3093 break;
3094 case QEMU_OPTION_global:
3095 if (qemu_global_option(optarg) != 0)
3096 exit(1);
3097 break;
3098 case QEMU_OPTION_mtdblock:
3099 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3100 break;
3101 case QEMU_OPTION_sd:
3102 drive_add(IF_SD, -1, optarg, SD_OPTS);
3103 break;
3104 case QEMU_OPTION_pflash:
3105 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3106 break;
3107 case QEMU_OPTION_snapshot:
3108 snapshot = 1;
3109 break;
3110 case QEMU_OPTION_hdachs:
3111 {
3112 const char *p;
3113 p = optarg;
3114 cyls = strtol(p, (char **)&p, 0);
3115 if (cyls < 1 || cyls > 16383)
3116 goto chs_fail;
3117 if (*p != ',')
3118 goto chs_fail;
3119 p++;
3120 heads = strtol(p, (char **)&p, 0);
3121 if (heads < 1 || heads > 16)
3122 goto chs_fail;
3123 if (*p != ',')
3124 goto chs_fail;
3125 p++;
3126 secs = strtol(p, (char **)&p, 0);
3127 if (secs < 1 || secs > 63)
3128 goto chs_fail;
3129 if (*p == ',') {
3130 p++;
3131 if (!strcmp(p, "large")) {
3132 translation = BIOS_ATA_TRANSLATION_LARGE;
3133 } else if (!strcmp(p, "rechs")) {
3134 translation = BIOS_ATA_TRANSLATION_RECHS;
3135 } else if (!strcmp(p, "none")) {
3136 translation = BIOS_ATA_TRANSLATION_NONE;
3137 } else if (!strcmp(p, "lba")) {
3138 translation = BIOS_ATA_TRANSLATION_LBA;
3139 } else if (!strcmp(p, "auto")) {
3140 translation = BIOS_ATA_TRANSLATION_AUTO;
3141 } else {
3142 goto chs_fail;
3143 }
3144 } else if (*p != '\0') {
3145 chs_fail:
3146 error_report("invalid physical CHS format");
3147 exit(1);
3148 }
3149 if (hda_opts != NULL) {
3150 qemu_opt_set_number(hda_opts, "cyls", cyls,
3151 &error_abort);
3152 qemu_opt_set_number(hda_opts, "heads", heads,
3153 &error_abort);
3154 qemu_opt_set_number(hda_opts, "secs", secs,
3155 &error_abort);
3156 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3157 qemu_opt_set(hda_opts, "trans", "large",
3158 &error_abort);
3159 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3160 qemu_opt_set(hda_opts, "trans", "rechs",
3161 &error_abort);
3162 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3163 qemu_opt_set(hda_opts, "trans", "lba",
3164 &error_abort);
3165 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3166 qemu_opt_set(hda_opts, "trans", "none",
3167 &error_abort);
3168 }
3169 }
3170 }
3171 break;
3172 case QEMU_OPTION_numa:
3173 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3174 optarg, true);
3175 if (!opts) {
3176 exit(1);
3177 }
3178 break;
3179 case QEMU_OPTION_display:
3180 display_type = select_display(optarg);
3181 break;
3182 case QEMU_OPTION_nographic:
3183 olist = qemu_find_opts("machine");
3184 qemu_opts_parse_noisily(olist, "graphics=off", false);
3185 nographic = true;
3186 display_type = DT_NONE;
3187 break;
3188 case QEMU_OPTION_curses:
3189 #ifdef CONFIG_CURSES
3190 display_type = DT_CURSES;
3191 #else
3192 error_report("curses support is disabled");
3193 exit(1);
3194 #endif
3195 break;
3196 case QEMU_OPTION_portrait:
3197 graphic_rotate = 90;
3198 break;
3199 case QEMU_OPTION_rotate:
3200 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3201 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3202 graphic_rotate != 180 && graphic_rotate != 270) {
3203 error_report("only 90, 180, 270 deg rotation is available");
3204 exit(1);
3205 }
3206 break;
3207 case QEMU_OPTION_kernel:
3208 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3209 &error_abort);
3210 break;
3211 case QEMU_OPTION_initrd:
3212 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3213 &error_abort);
3214 break;
3215 case QEMU_OPTION_append:
3216 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3217 &error_abort);
3218 break;
3219 case QEMU_OPTION_dtb:
3220 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3221 &error_abort);
3222 break;
3223 case QEMU_OPTION_cdrom:
3224 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3225 break;
3226 case QEMU_OPTION_boot:
3227 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3228 optarg, true);
3229 if (!opts) {
3230 exit(1);
3231 }
3232 break;
3233 case QEMU_OPTION_fda:
3234 case QEMU_OPTION_fdb:
3235 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3236 optarg, FD_OPTS);
3237 break;
3238 case QEMU_OPTION_no_fd_bootchk:
3239 fd_bootchk = 0;
3240 break;
3241 case QEMU_OPTION_netdev:
3242 default_net = 0;
3243 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3244 exit(1);
3245 }
3246 break;
3247 case QEMU_OPTION_net:
3248 default_net = 0;
3249 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3250 exit(1);
3251 }
3252 break;
3253 #ifdef CONFIG_LIBISCSI
3254 case QEMU_OPTION_iscsi:
3255 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3256 optarg, false);
3257 if (!opts) {
3258 exit(1);
3259 }
3260 break;
3261 #endif
3262 #ifdef CONFIG_SLIRP
3263 case QEMU_OPTION_tftp:
3264 error_report("The -tftp option is deprecated. "
3265 "Please use '-netdev user,tftp=...' instead.");
3266 legacy_tftp_prefix = optarg;
3267 break;
3268 case QEMU_OPTION_bootp:
3269 error_report("The -bootp option is deprecated. "
3270 "Please use '-netdev user,bootfile=...' instead.");
3271 legacy_bootp_filename = optarg;
3272 break;
3273 case QEMU_OPTION_redir:
3274 error_report("The -redir option is deprecated. "
3275 "Please use '-netdev user,hostfwd=...' instead.");
3276 if (net_slirp_redir(optarg) < 0)
3277 exit(1);
3278 break;
3279 #endif
3280 case QEMU_OPTION_bt:
3281 add_device_config(DEV_BT, optarg);
3282 break;
3283 case QEMU_OPTION_audio_help:
3284 AUD_help ();
3285 exit (0);
3286 break;
3287 case QEMU_OPTION_soundhw:
3288 select_soundhw (optarg);
3289 break;
3290 case QEMU_OPTION_h:
3291 help(0);
3292 break;
3293 case QEMU_OPTION_version:
3294 version();
3295 exit(0);
3296 break;
3297 case QEMU_OPTION_m:
3298 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3299 optarg, true);
3300 if (!opts) {
3301 exit(EXIT_FAILURE);
3302 }
3303 break;
3304 #ifdef CONFIG_TPM
3305 case QEMU_OPTION_tpmdev:
3306 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3307 exit(1);
3308 }
3309 break;
3310 #endif
3311 case QEMU_OPTION_mempath:
3312 mem_path = optarg;
3313 break;
3314 case QEMU_OPTION_mem_prealloc:
3315 mem_prealloc = 1;
3316 break;
3317 case QEMU_OPTION_d:
3318 log_mask = optarg;
3319 break;
3320 case QEMU_OPTION_D:
3321 log_file = optarg;
3322 break;
3323 case QEMU_OPTION_DFILTER:
3324 qemu_set_dfilter_ranges(optarg, &error_fatal);
3325 break;
3326 case QEMU_OPTION_s:
3327 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3328 break;
3329 case QEMU_OPTION_gdb:
3330 add_device_config(DEV_GDB, optarg);
3331 break;
3332 case QEMU_OPTION_L:
3333 if (is_help_option(optarg)) {
3334 list_data_dirs = true;
3335 } else if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3336 data_dir[data_dir_idx++] = optarg;
3337 }
3338 break;
3339 case QEMU_OPTION_bios:
3340 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3341 &error_abort);
3342 break;
3343 case QEMU_OPTION_singlestep:
3344 singlestep = 1;
3345 break;
3346 case QEMU_OPTION_S:
3347 autostart = 0;
3348 break;
3349 case QEMU_OPTION_k:
3350 keyboard_layout = optarg;
3351 break;
3352 case QEMU_OPTION_localtime:
3353 rtc_utc = 0;
3354 break;
3355 case QEMU_OPTION_vga:
3356 vga_model = optarg;
3357 default_vga = 0;
3358 break;
3359 case QEMU_OPTION_g:
3360 {
3361 const char *p;
3362 int w, h, depth;
3363 p = optarg;
3364 w = strtol(p, (char **)&p, 10);
3365 if (w <= 0) {
3366 graphic_error:
3367 error_report("invalid resolution or depth");
3368 exit(1);
3369 }
3370 if (*p != 'x')
3371 goto graphic_error;
3372 p++;
3373 h = strtol(p, (char **)&p, 10);
3374 if (h <= 0)
3375 goto graphic_error;
3376 if (*p == 'x') {
3377 p++;
3378 depth = strtol(p, (char **)&p, 10);
3379 if (depth != 8 && depth != 15 && depth != 16 &&
3380 depth != 24 && depth != 32)
3381 goto graphic_error;
3382 } else if (*p == '\0') {
3383 depth = graphic_depth;
3384 } else {
3385 goto graphic_error;
3386 }
3387
3388 graphic_width = w;
3389 graphic_height = h;
3390 graphic_depth = depth;
3391 }
3392 break;
3393 case QEMU_OPTION_echr:
3394 {
3395 char *r;
3396 term_escape_char = strtol(optarg, &r, 0);
3397 if (r == optarg)
3398 printf("Bad argument to echr\n");
3399 break;
3400 }
3401 case QEMU_OPTION_monitor:
3402 default_monitor = 0;
3403 if (strncmp(optarg, "none", 4)) {
3404 monitor_parse(optarg, "readline", false);
3405 }
3406 break;
3407 case QEMU_OPTION_qmp:
3408 monitor_parse(optarg, "control", false);
3409 default_monitor = 0;
3410 break;
3411 case QEMU_OPTION_qmp_pretty:
3412 monitor_parse(optarg, "control", true);
3413 default_monitor = 0;
3414 break;
3415 case QEMU_OPTION_mon:
3416 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3417 true);
3418 if (!opts) {
3419 exit(1);
3420 }
3421 default_monitor = 0;
3422 break;
3423 case QEMU_OPTION_chardev:
3424 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3425 optarg, true);
3426 if (!opts) {
3427 exit(1);
3428 }
3429 break;
3430 case QEMU_OPTION_fsdev:
3431 olist = qemu_find_opts("fsdev");
3432 if (!olist) {
3433 error_report("fsdev support is disabled");
3434 exit(1);
3435 }
3436 opts = qemu_opts_parse_noisily(olist, optarg, true);
3437 if (!opts) {
3438 exit(1);
3439 }
3440 break;
3441 case QEMU_OPTION_virtfs: {
3442 QemuOpts *fsdev;
3443 QemuOpts *device;
3444 const char *writeout, *sock_fd, *socket;
3445
3446 olist = qemu_find_opts("virtfs");
3447 if (!olist) {
3448 error_report("virtfs support is disabled");
3449 exit(1);
3450 }
3451 opts = qemu_opts_parse_noisily(olist, optarg, true);
3452 if (!opts) {
3453 exit(1);
3454 }
3455
3456 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3457 qemu_opt_get(opts, "mount_tag") == NULL) {
3458 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3459 exit(1);
3460 }
3461 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3462 qemu_opt_get(opts, "mount_tag"),
3463 1, NULL);
3464 if (!fsdev) {
3465 error_report("duplicate fsdev id: %s",
3466 qemu_opt_get(opts, "mount_tag"));
3467 exit(1);
3468 }
3469
3470 writeout = qemu_opt_get(opts, "writeout");
3471 if (writeout) {
3472 #ifdef CONFIG_SYNC_FILE_RANGE
3473 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3474 #else
3475 error_report("writeout=immediate not supported "
3476 "on this platform");
3477 exit(1);
3478 #endif
3479 }
3480 qemu_opt_set(fsdev, "fsdriver",
3481 qemu_opt_get(opts, "fsdriver"), &error_abort);
3482 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"),
3483 &error_abort);
3484 qemu_opt_set(fsdev, "security_model",
3485 qemu_opt_get(opts, "security_model"),
3486 &error_abort);
3487 socket = qemu_opt_get(opts, "socket");
3488 if (socket) {
3489 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3490 }
3491 sock_fd = qemu_opt_get(opts, "sock_fd");
3492 if (sock_fd) {
3493 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3494 }
3495
3496 qemu_opt_set_bool(fsdev, "readonly",
3497 qemu_opt_get_bool(opts, "readonly", 0),
3498 &error_abort);
3499 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3500 &error_abort);
3501 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3502 qemu_opt_set(device, "fsdev",
3503 qemu_opt_get(opts, "mount_tag"), &error_abort);
3504 qemu_opt_set(device, "mount_tag",
3505 qemu_opt_get(opts, "mount_tag"), &error_abort);
3506 break;
3507 }
3508 case QEMU_OPTION_virtfs_synth: {
3509 QemuOpts *fsdev;
3510 QemuOpts *device;
3511
3512 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3513 1, NULL);
3514 if (!fsdev) {
3515 error_report("duplicate option: %s", "virtfs_synth");
3516 exit(1);
3517 }
3518 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3519
3520 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3521 &error_abort);
3522 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3523 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3524 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3525 break;
3526 }
3527 case QEMU_OPTION_serial:
3528 add_device_config(DEV_SERIAL, optarg);
3529 default_serial = 0;
3530 if (strncmp(optarg, "mon:", 4) == 0) {
3531 default_monitor = 0;
3532 }
3533 break;
3534 case QEMU_OPTION_watchdog:
3535 if (watchdog) {
3536 error_report("only one watchdog option may be given");
3537 return 1;
3538 }
3539 watchdog = optarg;
3540 break;
3541 case QEMU_OPTION_watchdog_action:
3542 if (select_watchdog_action(optarg) == -1) {
3543 error_report("unknown -watchdog-action parameter");
3544 exit(1);
3545 }
3546 break;
3547 case QEMU_OPTION_virtiocon:
3548 add_device_config(DEV_VIRTCON, optarg);
3549 default_virtcon = 0;
3550 if (strncmp(optarg, "mon:", 4) == 0) {
3551 default_monitor = 0;
3552 }
3553 break;
3554 case QEMU_OPTION_parallel:
3555 add_device_config(DEV_PARALLEL, optarg);
3556 default_parallel = 0;
3557 if (strncmp(optarg, "mon:", 4) == 0) {
3558 default_monitor = 0;
3559 }
3560 break;
3561 case QEMU_OPTION_debugcon:
3562 add_device_config(DEV_DEBUGCON, optarg);
3563 break;
3564 case QEMU_OPTION_loadvm:
3565 loadvm = optarg;
3566 break;
3567 case QEMU_OPTION_full_screen:
3568 full_screen = 1;
3569 break;
3570 case QEMU_OPTION_no_frame:
3571 no_frame = 1;
3572 break;
3573 case QEMU_OPTION_alt_grab:
3574 alt_grab = 1;
3575 break;
3576 case QEMU_OPTION_ctrl_grab:
3577 ctrl_grab = 1;
3578 break;
3579 case QEMU_OPTION_no_quit:
3580 no_quit = 1;
3581 break;
3582 case QEMU_OPTION_sdl:
3583 #ifdef CONFIG_SDL
3584 display_type = DT_SDL;
3585 break;
3586 #else
3587 error_report("SDL support is disabled");
3588 exit(1);
3589 #endif
3590 case QEMU_OPTION_pidfile:
3591 pid_file = optarg;
3592 break;
3593 case QEMU_OPTION_win2k_hack:
3594 win2k_install_hack = 1;
3595 break;
3596 case QEMU_OPTION_rtc_td_hack: {
3597 static GlobalProperty slew_lost_ticks = {
3598 .driver = "mc146818rtc",
3599 .property = "lost_tick_policy",
3600 .value = "slew",
3601 };
3602
3603 qdev_prop_register_global(&slew_lost_ticks);
3604 break;
3605 }
3606 case QEMU_OPTION_acpitable:
3607 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3608 optarg, true);
3609 if (!opts) {
3610 exit(1);
3611 }
3612 do_acpitable_option(opts);
3613 break;
3614 case QEMU_OPTION_smbios:
3615 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3616 optarg, false);
3617 if (!opts) {
3618 exit(1);
3619 }
3620 do_smbios_option(opts);
3621 break;
3622 case QEMU_OPTION_fwcfg:
3623 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3624 optarg, true);
3625 if (opts == NULL) {
3626 exit(1);
3627 }
3628 break;
3629 case QEMU_OPTION_enable_kvm:
3630 olist = qemu_find_opts("machine");
3631 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3632 break;
3633 case QEMU_OPTION_M:
3634 case QEMU_OPTION_machine:
3635 olist = qemu_find_opts("machine");
3636 opts = qemu_opts_parse_noisily(olist, optarg, true);
3637 if (!opts) {
3638 exit(1);
3639 }
3640 break;
3641 case QEMU_OPTION_no_kvm:
3642 olist = qemu_find_opts("machine");
3643 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3644 break;
3645 case QEMU_OPTION_no_kvm_pit: {
3646 error_report("warning: ignoring deprecated option");
3647 break;
3648 }
3649 case QEMU_OPTION_no_kvm_pit_reinjection: {
3650 static GlobalProperty kvm_pit_lost_tick_policy = {
3651 .driver = "kvm-pit",
3652 .property = "lost_tick_policy",
3653 .value = "discard",
3654 };
3655
3656 error_report("warning: deprecated, replaced by "
3657 "-global kvm-pit.lost_tick_policy=discard");
3658 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3659 break;
3660 }
3661 case QEMU_OPTION_usb:
3662 olist = qemu_find_opts("machine");
3663 qemu_opts_parse_noisily(olist, "usb=on", false);
3664 break;
3665 case QEMU_OPTION_usbdevice:
3666 olist = qemu_find_opts("machine");
3667 qemu_opts_parse_noisily(olist, "usb=on", false);
3668 add_device_config(DEV_USB, optarg);
3669 break;
3670 case QEMU_OPTION_device:
3671 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3672 optarg, true)) {
3673 exit(1);
3674 }
3675 break;
3676 case QEMU_OPTION_smp:
3677 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3678 optarg, true)) {
3679 exit(1);
3680 }
3681 break;
3682 case QEMU_OPTION_vnc:
3683 vnc_parse(optarg, &error_fatal);
3684 break;
3685 case QEMU_OPTION_no_acpi:
3686 acpi_enabled = 0;
3687 break;
3688 case QEMU_OPTION_no_hpet:
3689 no_hpet = 1;
3690 break;
3691 case QEMU_OPTION_balloon:
3692 if (balloon_parse(optarg) < 0) {
3693 error_report("unknown -balloon argument %s", optarg);
3694 exit(1);
3695 }
3696 break;
3697 case QEMU_OPTION_no_reboot:
3698 no_reboot = 1;
3699 break;
3700 case QEMU_OPTION_no_shutdown:
3701 no_shutdown = 1;
3702 break;
3703 case QEMU_OPTION_show_cursor:
3704 cursor_hide = 0;
3705 break;
3706 case QEMU_OPTION_uuid:
3707 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3708 error_report("failed to parse UUID string: wrong format");
3709 exit(1);
3710 }
3711 qemu_uuid_set = true;
3712 break;
3713 case QEMU_OPTION_option_rom:
3714 if (nb_option_roms >= MAX_OPTION_ROMS) {
3715 error_report("too many option ROMs");
3716 exit(1);
3717 }
3718 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3719 optarg, true);
3720 if (!opts) {
3721 exit(1);
3722 }
3723 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3724 option_rom[nb_option_roms].bootindex =
3725 qemu_opt_get_number(opts, "bootindex", -1);
3726 if (!option_rom[nb_option_roms].name) {
3727 error_report("Option ROM file is not specified");
3728 exit(1);
3729 }
3730 nb_option_roms++;
3731 break;
3732 case QEMU_OPTION_semihosting:
3733 semihosting.enabled = true;
3734 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3735 break;
3736 case QEMU_OPTION_semihosting_config:
3737 semihosting.enabled = true;
3738 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3739 optarg, false);
3740 if (opts != NULL) {
3741 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3742 true);
3743 const char *target = qemu_opt_get(opts, "target");
3744 if (target != NULL) {
3745 if (strcmp("native", target) == 0) {
3746 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3747 } else if (strcmp("gdb", target) == 0) {
3748 semihosting.target = SEMIHOSTING_TARGET_GDB;
3749 } else if (strcmp("auto", target) == 0) {
3750 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3751 } else {
3752 error_report("unsupported semihosting-config %s",
3753 optarg);
3754 exit(1);
3755 }
3756 } else {
3757 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3758 }
3759 /* Set semihosting argument count and vector */
3760 qemu_opt_foreach(opts, add_semihosting_arg,
3761 &semihosting, NULL);
3762 } else {
3763 error_report("unsupported semihosting-config %s", optarg);
3764 exit(1);
3765 }
3766 break;
3767 case QEMU_OPTION_tdf:
3768 error_report("warning: ignoring deprecated option");
3769 break;
3770 case QEMU_OPTION_name:
3771 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3772 optarg, true);
3773 if (!opts) {
3774 exit(1);
3775 }
3776 break;
3777 case QEMU_OPTION_prom_env:
3778 if (nb_prom_envs >= MAX_PROM_ENVS) {
3779 error_report("too many prom variables");
3780 exit(1);
3781 }
3782 prom_envs[nb_prom_envs] = optarg;
3783 nb_prom_envs++;
3784 break;
3785 case QEMU_OPTION_old_param:
3786 old_param = 1;
3787 break;
3788 case QEMU_OPTION_clock:
3789 /* Clock options no longer exist. Keep this option for
3790 * backward compatibility.
3791 */
3792 break;
3793 case QEMU_OPTION_startdate:
3794 configure_rtc_date_offset(optarg, 1);
3795 break;
3796 case QEMU_OPTION_rtc:
3797 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3798 false);
3799 if (!opts) {
3800 exit(1);
3801 }
3802 configure_rtc(opts);
3803 break;
3804 case QEMU_OPTION_tb_size:
3805 tcg_tb_size = strtol(optarg, NULL, 0);
3806 if (tcg_tb_size < 0) {
3807 tcg_tb_size = 0;
3808 }
3809 break;
3810 case QEMU_OPTION_icount:
3811 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3812 optarg, true);
3813 if (!icount_opts) {
3814 exit(1);
3815 }
3816 break;
3817 case QEMU_OPTION_incoming:
3818 if (!incoming) {
3819 runstate_set(RUN_STATE_INMIGRATE);
3820 }
3821 incoming = optarg;
3822 break;
3823 case QEMU_OPTION_nodefaults:
3824 has_defaults = 0;
3825 break;
3826 case QEMU_OPTION_xen_domid:
3827 if (!(xen_available())) {
3828 error_report("Option not supported for this target");
3829 exit(1);
3830 }
3831 xen_domid = atoi(optarg);
3832 break;
3833 case QEMU_OPTION_xen_create:
3834 if (!(xen_available())) {
3835 error_report("Option not supported for this target");
3836 exit(1);
3837 }
3838 xen_mode = XEN_CREATE;
3839 break;
3840 case QEMU_OPTION_xen_attach:
3841 if (!(xen_available())) {
3842 error_report("Option not supported for this target");
3843 exit(1);
3844 }
3845 xen_mode = XEN_ATTACH;
3846 break;
3847 case QEMU_OPTION_trace:
3848 g_free(trace_file);
3849 trace_file = trace_opt_parse(optarg);
3850 break;
3851 case QEMU_OPTION_readconfig:
3852 {
3853 int ret = qemu_read_config_file(optarg);
3854 if (ret < 0) {
3855 error_report("read config %s: %s", optarg,
3856 strerror(-ret));
3857 exit(1);
3858 }
3859 break;
3860 }
3861 case QEMU_OPTION_spice:
3862 olist = qemu_find_opts("spice");
3863 if (!olist) {
3864 error_report("spice support is disabled");
3865 exit(1);
3866 }
3867 opts = qemu_opts_parse_noisily(olist, optarg, false);
3868 if (!opts) {
3869 exit(1);
3870 }
3871 display_remote++;
3872 break;
3873 case QEMU_OPTION_writeconfig:
3874 {
3875 FILE *fp;
3876 if (strcmp(optarg, "-") == 0) {
3877 fp = stdout;
3878 } else {
3879 fp = fopen(optarg, "w");
3880 if (fp == NULL) {
3881 error_report("open %s: %s", optarg,
3882 strerror(errno));
3883 exit(1);
3884 }
3885 }
3886 qemu_config_write(fp);
3887 if (fp != stdout) {
3888 fclose(fp);
3889 }
3890 break;
3891 }
3892 case QEMU_OPTION_qtest:
3893 qtest_chrdev = optarg;
3894 break;
3895 case QEMU_OPTION_qtest_log:
3896 qtest_log = optarg;
3897 break;
3898 case QEMU_OPTION_sandbox:
3899 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3900 optarg, true);
3901 if (!opts) {
3902 exit(1);
3903 }
3904 break;
3905 case QEMU_OPTION_add_fd:
3906 #ifndef _WIN32
3907 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3908 optarg, false);
3909 if (!opts) {
3910 exit(1);
3911 }
3912 #else
3913 error_report("File descriptor passing is disabled on this "
3914 "platform");
3915 exit(1);
3916 #endif
3917 break;
3918 case QEMU_OPTION_object:
3919 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3920 optarg, true);
3921 if (!opts) {
3922 exit(1);
3923 }
3924 break;
3925 case QEMU_OPTION_realtime:
3926 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3927 optarg, false);
3928 if (!opts) {
3929 exit(1);
3930 }
3931 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3932 break;
3933 case QEMU_OPTION_msg:
3934 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3935 false);
3936 if (!opts) {
3937 exit(1);
3938 }
3939 configure_msg(opts);
3940 break;
3941 case QEMU_OPTION_dump_vmstate:
3942 if (vmstate_dump_file) {
3943 error_report("only one '-dump-vmstate' "
3944 "option may be given");
3945 exit(1);
3946 }
3947 vmstate_dump_file = fopen(optarg, "w");
3948 if (vmstate_dump_file == NULL) {
3949 error_report("open %s: %s", optarg, strerror(errno));
3950 exit(1);
3951 }
3952 break;
3953 default:
3954 os_parse_cmd_args(popt->index, optarg);
3955 }
3956 }
3957 }
3958 /*
3959 * Clear error location left behind by the loop.
3960 * Best done right after the loop. Do not insert code here!
3961 */
3962 loc_set_none();
3963
3964 replay_configure(icount_opts);
3965
3966 machine_class = select_machine();
3967
3968 set_memory_options(&ram_slots, &maxram_size, machine_class);
3969
3970 os_daemonize();
3971
3972 if (qemu_init_main_loop(&main_loop_err)) {
3973 error_report_err(main_loop_err);
3974 exit(1);
3975 }
3976
3977 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
3978 parse_sandbox, NULL, NULL)) {
3979 exit(1);
3980 }
3981
3982 if (qemu_opts_foreach(qemu_find_opts("name"),
3983 parse_name, NULL, NULL)) {
3984 exit(1);
3985 }
3986
3987 #ifndef _WIN32
3988 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
3989 parse_add_fd, NULL, NULL)) {
3990 exit(1);
3991 }
3992
3993 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
3994 cleanup_add_fd, NULL, NULL)) {
3995 exit(1);
3996 }
3997 #endif
3998
3999 current_machine = MACHINE(object_new(object_class_get_name(
4000 OBJECT_CLASS(machine_class))));
4001 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4002 exit(0);
4003 }
4004 object_property_add_child(object_get_root(), "machine",
4005 OBJECT(current_machine), &error_abort);
4006 cpu_exec_init_all();
4007
4008 if (machine_class->hw_version) {
4009 qemu_set_hw_version(machine_class->hw_version);
4010 }
4011
4012 if (cpu_model && is_help_option(cpu_model)) {
4013 list_cpus(stdout, &fprintf, cpu_model);
4014 exit(0);
4015 }
4016
4017 if (!trace_init_backends()) {
4018 exit(1);
4019 }
4020 trace_init_file(trace_file);
4021
4022 /* Open the logfile at this point and set the log mask if necessary.
4023 */
4024 if (log_file) {
4025 qemu_set_log_filename(log_file, &error_fatal);
4026 }
4027
4028 if (log_mask) {
4029 int mask;
4030 mask = qemu_str_to_log_mask(log_mask);
4031 if (!mask) {
4032 qemu_print_log_usage(stdout);
4033 exit(1);
4034 }
4035 qemu_set_log(mask);
4036 } else {
4037 qemu_set_log(0);
4038 }
4039
4040 /* If no data_dir is specified then try to find it relative to the
4041 executable path. */
4042 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4043 data_dir[data_dir_idx] = os_find_datadir();
4044 if (data_dir[data_dir_idx] != NULL) {
4045 data_dir_idx++;
4046 }
4047 }
4048 /* If all else fails use the install path specified when building. */
4049 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4050 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
4051 }
4052
4053 /* -L help lists the data directories and exits. */
4054 if (list_data_dirs) {
4055 for (i = 0; i < data_dir_idx; i++) {
4056 printf("%s\n", data_dir[i]);
4057 }
4058 exit(0);
4059 }
4060
4061 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4062
4063 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4064 if (max_cpus > machine_class->max_cpus) {
4065 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs "
4066 "supported by machine '%s' (%d)", max_cpus,
4067 machine_class->name, machine_class->max_cpus);
4068 exit(1);
4069 }
4070
4071 /*
4072 * Get the default machine options from the machine if it is not already
4073 * specified either by the configuration file or by the command line.
4074 */
4075 if (machine_class->default_machine_opts) {
4076 qemu_opts_set_defaults(qemu_find_opts("machine"),
4077 machine_class->default_machine_opts, 0);
4078 }
4079
4080 qemu_opts_foreach(qemu_find_opts("device"),
4081 default_driver_check, NULL, NULL);
4082 qemu_opts_foreach(qemu_find_opts("global"),
4083 default_driver_check, NULL, NULL);
4084
4085 if (!vga_model && !default_vga) {
4086 vga_interface_type = VGA_DEVICE;
4087 }
4088 if (!has_defaults || machine_class->no_serial) {
4089 default_serial = 0;
4090 }
4091 if (!has_defaults || machine_class->no_parallel) {
4092 default_parallel = 0;
4093 }
4094 if (!has_defaults || !machine_class->use_virtcon) {
4095 default_virtcon = 0;
4096 }
4097 if (!has_defaults || !machine_class->use_sclp) {
4098 default_sclp = 0;
4099 }
4100 if (!has_defaults || machine_class->no_floppy) {
4101 default_floppy = 0;
4102 }
4103 if (!has_defaults || machine_class->no_cdrom) {
4104 default_cdrom = 0;
4105 }
4106 if (!has_defaults || machine_class->no_sdcard) {
4107 default_sdcard = 0;
4108 }
4109 if (!has_defaults) {
4110 default_monitor = 0;
4111 default_net = 0;
4112 default_vga = 0;
4113 }
4114
4115 if (is_daemonized()) {
4116 /* According to documentation and historically, -nographic redirects
4117 * serial port, parallel port and monitor to stdio, which does not work
4118 * with -daemonize. We can redirect these to null instead, but since
4119 * -nographic is legacy, let's just error out.
4120 * We disallow -nographic only if all other ports are not redirected
4121 * explicitly, to not break existing legacy setups which uses
4122 * -nographic _and_ redirects all ports explicitly - this is valid
4123 * usage, -nographic is just a no-op in this case.
4124 */
4125 if (nographic
4126 && (default_parallel || default_serial
4127 || default_monitor || default_virtcon)) {
4128 error_report("-nographic cannot be used with -daemonize");
4129 exit(1);
4130 }
4131 #ifdef CONFIG_CURSES
4132 if (display_type == DT_CURSES) {
4133 error_report("curses display cannot be used with -daemonize");
4134 exit(1);
4135 }
4136 #endif
4137 }
4138
4139 if (nographic) {
4140 if (default_parallel)
4141 add_device_config(DEV_PARALLEL, "null");
4142 if (default_serial && default_monitor) {
4143 add_device_config(DEV_SERIAL, "mon:stdio");
4144 } else if (default_virtcon && default_monitor) {
4145 add_device_config(DEV_VIRTCON, "mon:stdio");
4146 } else if (default_sclp && default_monitor) {
4147 add_device_config(DEV_SCLP, "mon:stdio");
4148 } else {
4149 if (default_serial)
4150 add_device_config(DEV_SERIAL, "stdio");
4151 if (default_virtcon)
4152 add_device_config(DEV_VIRTCON, "stdio");
4153 if (default_sclp) {
4154 add_device_config(DEV_SCLP, "stdio");
4155 }
4156 if (default_monitor)
4157 monitor_parse("stdio", "readline", false);
4158 }
4159 } else {
4160 if (default_serial)
4161 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4162 if (default_parallel)
4163 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4164 if (default_monitor)
4165 monitor_parse("vc:80Cx24C", "readline", false);
4166 if (default_virtcon)
4167 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4168 if (default_sclp) {
4169 add_device_config(DEV_SCLP, "vc:80Cx24C");
4170 }
4171 }
4172
4173 #if defined(CONFIG_VNC)
4174 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4175 display_remote++;
4176 }
4177 #endif
4178 if (display_type == DT_DEFAULT && !display_remote) {
4179 #if defined(CONFIG_GTK)
4180 display_type = DT_GTK;
4181 #elif defined(CONFIG_SDL)
4182 display_type = DT_SDL;
4183 #elif defined(CONFIG_COCOA)
4184 display_type = DT_COCOA;
4185 #elif defined(CONFIG_VNC)
4186 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4187 #else
4188 display_type = DT_NONE;
4189 #endif
4190 }
4191
4192 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4193 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4194 "for SDL, ignoring option");
4195 }
4196 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4197 error_report("-no-quit is only valid for GTK and SDL, "
4198 "ignoring option");
4199 }
4200
4201 if (display_type == DT_GTK) {
4202 early_gtk_display_init(request_opengl);
4203 }
4204
4205 if (display_type == DT_SDL) {
4206 sdl_display_early_init(request_opengl);
4207 }
4208
4209 if (request_opengl == 1 && display_opengl == 0) {
4210 #if defined(CONFIG_OPENGL)
4211 error_report("OpenGL is not supported by the display");
4212 #else
4213 error_report("OpenGL support is disabled");
4214 #endif
4215 exit(1);
4216 }
4217
4218 page_size_init();
4219 socket_init();
4220
4221 if (qemu_opts_foreach(qemu_find_opts("object"),
4222 user_creatable_add_opts_foreach,
4223 object_create_initial, NULL)) {
4224 exit(1);
4225 }
4226
4227 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4228 chardev_init_func, NULL, NULL)) {
4229 exit(1);
4230 }
4231
4232 #ifdef CONFIG_VIRTFS
4233 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4234 fsdev_init_func, NULL, NULL)) {
4235 exit(1);
4236 }
4237 #endif
4238
4239 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4240 error_report("could not acquire pid file: %s", strerror(errno));
4241 exit(1);
4242 }
4243
4244 if (qemu_opts_foreach(qemu_find_opts("device"),
4245 device_help_func, NULL, NULL)) {
4246 exit(0);
4247 }
4248
4249 machine_opts = qemu_get_machine_opts();
4250 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4251 NULL)) {
4252 object_unref(OBJECT(current_machine));
4253 exit(1);
4254 }
4255
4256 configure_accelerator(current_machine);
4257
4258 if (qtest_chrdev) {
4259 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4260 }
4261
4262 machine_opts = qemu_get_machine_opts();
4263 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4264 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4265 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4266 bios_name = qemu_opt_get(machine_opts, "firmware");
4267
4268 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4269 if (opts) {
4270 boot_order = qemu_opt_get(opts, "order");
4271 if (boot_order) {
4272 validate_bootdevices(boot_order, &error_fatal);
4273 }
4274
4275 boot_once = qemu_opt_get(opts, "once");
4276 if (boot_once) {
4277 validate_bootdevices(boot_once, &error_fatal);
4278 }
4279
4280 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4281 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4282 }
4283
4284 if (!boot_order) {
4285 boot_order = machine_class->default_boot_order;
4286 }
4287
4288 if (!kernel_cmdline) {
4289 kernel_cmdline = "";
4290 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4291 }
4292
4293 linux_boot = (kernel_filename != NULL);
4294
4295 if (!linux_boot && *kernel_cmdline != '\0') {
4296 error_report("-append only allowed with -kernel option");
4297 exit(1);
4298 }
4299
4300 if (!linux_boot && initrd_filename != NULL) {
4301 error_report("-initrd only allowed with -kernel option");
4302 exit(1);
4303 }
4304
4305 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4306 error_report("-dtb only allowed with -kernel option");
4307 exit(1);
4308 }
4309
4310 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4311 /* fall back to the -kernel/-append */
4312 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4313 }
4314
4315 os_set_line_buffering();
4316
4317 /* spice needs the timers to be initialized by this point */
4318 qemu_spice_init();
4319
4320 cpu_ticks_init();
4321 if (icount_opts) {
4322 if (kvm_enabled() || xen_enabled()) {
4323 error_report("-icount is not allowed with kvm or xen");
4324 exit(1);
4325 }
4326 configure_icount(icount_opts, &error_abort);
4327 qemu_opts_del(icount_opts);
4328 }
4329
4330 /* clean up network at qemu process termination */
4331 atexit(&net_cleanup);
4332
4333 if (default_net) {
4334 QemuOptsList *net = qemu_find_opts("net");
4335 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4336 #ifdef CONFIG_SLIRP
4337 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4338 #endif
4339 }
4340
4341 if (net_init_clients() < 0) {
4342 exit(1);
4343 }
4344
4345 if (qemu_opts_foreach(qemu_find_opts("object"),
4346 user_creatable_add_opts_foreach,
4347 object_create_delayed, NULL)) {
4348 exit(1);
4349 }
4350
4351 #ifdef CONFIG_TPM
4352 if (tpm_init() < 0) {
4353 exit(1);
4354 }
4355 #endif
4356
4357 /* init the bluetooth world */
4358 if (foreach_device_config(DEV_BT, bt_parse))
4359 exit(1);
4360
4361 if (!xen_enabled()) {
4362 /* On 32-bit hosts, QEMU is limited by virtual address space */
4363 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4364 error_report("at most 2047 MB RAM can be simulated");
4365 exit(1);
4366 }
4367 }
4368
4369 blk_mig_init();
4370 ram_mig_init();
4371
4372 /* If the currently selected machine wishes to override the units-per-bus
4373 * property of its default HBA interface type, do so now. */
4374 if (machine_class->units_per_default_bus) {
4375 override_max_devs(machine_class->block_default_type,
4376 machine_class->units_per_default_bus);
4377 }
4378
4379 /* open the virtual block devices */
4380 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4381 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4382 NULL, NULL);
4383 }
4384 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4385 &machine_class->block_default_type, NULL)) {
4386 exit(1);
4387 }
4388
4389 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4390 CDROM_OPTS);
4391 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4392 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4393
4394 parse_numa_opts(machine_class);
4395
4396 if (qemu_opts_foreach(qemu_find_opts("mon"),
4397 mon_init_func, NULL, NULL)) {
4398 exit(1);
4399 }
4400
4401 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4402 exit(1);
4403 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4404 exit(1);
4405 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4406 exit(1);
4407 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4408 exit(1);
4409 }
4410 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4411 exit(1);
4412
4413 /* If no default VGA is requested, the default is "none". */
4414 if (default_vga) {
4415 if (machine_class->default_display) {
4416 vga_model = machine_class->default_display;
4417 } else if (vga_interface_available(VGA_CIRRUS)) {
4418 vga_model = "cirrus";
4419 } else if (vga_interface_available(VGA_STD)) {
4420 vga_model = "std";
4421 }
4422 }
4423 if (vga_model) {
4424 select_vgahw(vga_model);
4425 }
4426
4427 if (watchdog) {
4428 i = select_watchdog(watchdog);
4429 if (i > 0)
4430 exit (i == 1 ? 1 : 0);
4431 }
4432
4433 if (machine_class->compat_props) {
4434 GlobalProperty *p;
4435 for (i = 0; i < machine_class->compat_props->len; i++) {
4436 p = g_array_index(machine_class->compat_props, GlobalProperty *, i);
4437 qdev_prop_register_global(p);
4438 }
4439 }
4440 qemu_add_globals();
4441
4442 /* This checkpoint is required by replay to separate prior clock
4443 reading from the other reads, because timer polling functions query
4444 clock values from the log. */
4445 replay_checkpoint(CHECKPOINT_INIT);
4446 qdev_machine_init();
4447
4448 current_machine->ram_size = ram_size;
4449 current_machine->maxram_size = maxram_size;
4450 current_machine->ram_slots = ram_slots;
4451 current_machine->boot_order = boot_order;
4452 current_machine->cpu_model = cpu_model;
4453
4454 machine_class->init(current_machine);
4455
4456 realtime_init();
4457
4458 audio_init();
4459
4460 cpu_synchronize_all_post_init();
4461
4462 numa_post_machine_init();
4463
4464 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4465 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4466 exit(1);
4467 }
4468
4469 /* init USB devices */
4470 if (machine_usb(current_machine)) {
4471 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4472 exit(1);
4473 }
4474
4475 /* Check if IGD GFX passthrough. */
4476 igd_gfx_passthru();
4477
4478 /* init generic devices */
4479 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4480 if (qemu_opts_foreach(qemu_find_opts("device"),
4481 device_init_func, NULL, NULL)) {
4482 exit(1);
4483 }
4484 rom_reset_order_override();
4485
4486 /* Did we create any drives that we failed to create a device for? */
4487 drive_check_orphaned();
4488
4489 /* Don't warn about the default network setup that you get if
4490 * no command line -net or -netdev options are specified. There
4491 * are two cases that we would otherwise complain about:
4492 * (1) board doesn't support a NIC but the implicit "-net nic"
4493 * requested one
4494 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4495 * sets up a nic that isn't connected to anything.
4496 */
4497 if (!default_net) {
4498 net_check_clients();
4499 }
4500
4501
4502 if (boot_once) {
4503 qemu_boot_set(boot_once, &error_fatal);
4504 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4505 }
4506
4507 ds = init_displaystate();
4508
4509 /* init local displays */
4510 switch (display_type) {
4511 case DT_CURSES:
4512 curses_display_init(ds, full_screen);
4513 break;
4514 case DT_SDL:
4515 sdl_display_init(ds, full_screen, no_frame);
4516 break;
4517 case DT_COCOA:
4518 cocoa_display_init(ds, full_screen);
4519 break;
4520 case DT_GTK:
4521 gtk_display_init(ds, full_screen, grab_on_hover);
4522 break;
4523 default:
4524 break;
4525 }
4526
4527 /* must be after terminal init, SDL library changes signal handlers */
4528 os_setup_signal_handling();
4529
4530 /* init remote displays */
4531 #ifdef CONFIG_VNC
4532 qemu_opts_foreach(qemu_find_opts("vnc"),
4533 vnc_init_func, NULL, NULL);
4534 #endif
4535
4536 if (using_spice) {
4537 qemu_spice_display_init();
4538 }
4539
4540 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4541 exit(1);
4542 }
4543
4544 qdev_machine_creation_done();
4545
4546 /* TODO: once all bus devices are qdevified, this should be done
4547 * when bus is created by qdev.c */
4548 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4549 qemu_run_machine_init_done_notifiers();
4550
4551 if (rom_check_and_register_reset() != 0) {
4552 error_report("rom check and register reset failed");
4553 exit(1);
4554 }
4555
4556 replay_start();
4557
4558 /* This checkpoint is required by replay to separate prior clock
4559 reading from the other reads, because timer polling functions query
4560 clock values from the log. */
4561 replay_checkpoint(CHECKPOINT_RESET);
4562 qemu_system_reset(VMRESET_SILENT);
4563 register_global_state();
4564 if (loadvm) {
4565 if (load_vmstate(loadvm) < 0) {
4566 autostart = 0;
4567 }
4568 }
4569
4570 qdev_prop_check_globals();
4571 if (vmstate_dump_file) {
4572 /* dump and exit */
4573 dump_vmstate_json_to_file(vmstate_dump_file);
4574 return 0;
4575 }
4576
4577 if (incoming) {
4578 Error *local_err = NULL;
4579 qemu_start_incoming_migration(incoming, &local_err);
4580 if (local_err) {
4581 error_reportf_err(local_err, "-incoming %s: ", incoming);
4582 exit(1);
4583 }
4584 } else if (autostart) {
4585 vm_start();
4586 }
4587
4588 os_setup_post();
4589
4590 main_loop();
4591 replay_disable_events();
4592
4593 bdrv_close_all();
4594 pause_all_vcpus();
4595 res_free();
4596 #ifdef CONFIG_TPM
4597 tpm_cleanup();
4598 #endif
4599
4600 return 0;
4601 }
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