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block/iscsi: allow caching of the allocation map
[qemu/kevin.git] / vl.c
blobd3ec5320ead21b1aa9003ecf9bbaa791049f9fc8
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 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2679 {
2680 notifier_remove(notify);
2681 }
2682
2683 static void qemu_run_machine_init_done_notifiers(void)
2684 {
2685 notifier_list_notify(&machine_init_done_notifiers, NULL);
2686 machine_init_done = true;
2687 }
2688
2689 static const QEMUOption *lookup_opt(int argc, char **argv,
2690 const char **poptarg, int *poptind)
2691 {
2692 const QEMUOption *popt;
2693 int optind = *poptind;
2694 char *r = argv[optind];
2695 const char *optarg;
2696
2697 loc_set_cmdline(argv, optind, 1);
2698 optind++;
2699 /* Treat --foo the same as -foo. */
2700 if (r[1] == '-')
2701 r++;
2702 popt = qemu_options;
2703 for(;;) {
2704 if (!popt->name) {
2705 error_report("invalid option");
2706 exit(1);
2707 }
2708 if (!strcmp(popt->name, r + 1))
2709 break;
2710 popt++;
2711 }
2712 if (popt->flags & HAS_ARG) {
2713 if (optind >= argc) {
2714 error_report("requires an argument");
2715 exit(1);
2716 }
2717 optarg = argv[optind++];
2718 loc_set_cmdline(argv, optind - 2, 2);
2719 } else {
2720 optarg = NULL;
2721 }
2722
2723 *poptarg = optarg;
2724 *poptind = optind;
2725
2726 return popt;
2727 }
2728
2729 static MachineClass *select_machine(void)
2730 {
2731 MachineClass *machine_class = find_default_machine();
2732 const char *optarg;
2733 QemuOpts *opts;
2734 Location loc;
2735
2736 loc_push_none(&loc);
2737
2738 opts = qemu_get_machine_opts();
2739 qemu_opts_loc_restore(opts);
2740
2741 optarg = qemu_opt_get(opts, "type");
2742 if (optarg) {
2743 machine_class = machine_parse(optarg);
2744 }
2745
2746 if (!machine_class) {
2747 error_report("No machine specified, and there is no default");
2748 error_printf("Use -machine help to list supported machines\n");
2749 exit(1);
2750 }
2751
2752 loc_pop(&loc);
2753 return machine_class;
2754 }
2755
2756 static int machine_set_property(void *opaque,
2757 const char *name, const char *value,
2758 Error **errp)
2759 {
2760 Object *obj = OBJECT(opaque);
2761 Error *local_err = NULL;
2762 char *c, *qom_name;
2763
2764 if (strcmp(name, "type") == 0) {
2765 return 0;
2766 }
2767
2768 qom_name = g_strdup(name);
2769 c = qom_name;
2770 while (*c++) {
2771 if (*c == '_') {
2772 *c = '-';
2773 }
2774 }
2775
2776 object_property_parse(obj, value, qom_name, &local_err);
2777 g_free(qom_name);
2778
2779 if (local_err) {
2780 error_report_err(local_err);
2781 return -1;
2782 }
2783
2784 return 0;
2785 }
2786
2787
2788 /*
2789 * Initial object creation happens before all other
2790 * QEMU data types are created. The majority of objects
2791 * can be created at this point. The rng-egd object
2792 * cannot be created here, as it depends on the chardev
2793 * already existing.
2794 */
2795 static bool object_create_initial(const char *type)
2796 {
2797 if (g_str_equal(type, "rng-egd")) {
2798 return false;
2799 }
2800
2801 /*
2802 * return false for concrete netfilters since
2803 * they depend on netdevs already existing
2804 */
2805 if (g_str_equal(type, "filter-buffer") ||
2806 g_str_equal(type, "filter-dump") ||
2807 g_str_equal(type, "filter-mirror") ||
2808 g_str_equal(type, "filter-redirector")) {
2809 return false;
2810 }
2811
2812 return true;
2813 }
2814
2815
2816 /*
2817 * The remainder of object creation happens after the
2818 * creation of chardev, fsdev, net clients and device data types.
2819 */
2820 static bool object_create_delayed(const char *type)
2821 {
2822 return !object_create_initial(type);
2823 }
2824
2825
2826 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2827 MachineClass *mc)
2828 {
2829 uint64_t sz;
2830 const char *mem_str;
2831 const char *maxmem_str, *slots_str;
2832 const ram_addr_t default_ram_size = mc->default_ram_size;
2833 QemuOpts *opts = qemu_find_opts_singleton("memory");
2834 Location loc;
2835
2836 loc_push_none(&loc);
2837 qemu_opts_loc_restore(opts);
2838
2839 sz = 0;
2840 mem_str = qemu_opt_get(opts, "size");
2841 if (mem_str) {
2842 if (!*mem_str) {
2843 error_report("missing 'size' option value");
2844 exit(EXIT_FAILURE);
2845 }
2846
2847 sz = qemu_opt_get_size(opts, "size", ram_size);
2848
2849 /* Fix up legacy suffix-less format */
2850 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2851 uint64_t overflow_check = sz;
2852
2853 sz <<= 20;
2854 if ((sz >> 20) != overflow_check) {
2855 error_report("too large 'size' option value");
2856 exit(EXIT_FAILURE);
2857 }
2858 }
2859 }
2860
2861 /* backward compatibility behaviour for case "-m 0" */
2862 if (sz == 0) {
2863 sz = default_ram_size;
2864 }
2865
2866 sz = QEMU_ALIGN_UP(sz, 8192);
2867 ram_size = sz;
2868 if (ram_size != sz) {
2869 error_report("ram size too large");
2870 exit(EXIT_FAILURE);
2871 }
2872
2873 /* store value for the future use */
2874 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2875 *maxram_size = ram_size;
2876
2877 maxmem_str = qemu_opt_get(opts, "maxmem");
2878 slots_str = qemu_opt_get(opts, "slots");
2879 if (maxmem_str && slots_str) {
2880 uint64_t slots;
2881
2882 sz = qemu_opt_get_size(opts, "maxmem", 0);
2883 slots = qemu_opt_get_number(opts, "slots", 0);
2884 if (sz < ram_size) {
2885 error_report("invalid value of -m option maxmem: "
2886 "maximum memory size (0x%" PRIx64 ") must be at least "
2887 "the initial memory size (0x" RAM_ADDR_FMT ")",
2888 sz, ram_size);
2889 exit(EXIT_FAILURE);
2890 } else if (sz > ram_size) {
2891 if (!slots) {
2892 error_report("invalid value of -m option: maxmem was "
2893 "specified, but no hotplug slots were specified");
2894 exit(EXIT_FAILURE);
2895 }
2896 } else if (slots) {
2897 error_report("invalid value of -m option maxmem: "
2898 "memory slots were specified but maximum memory size "
2899 "(0x%" PRIx64 ") is equal to the initial memory size "
2900 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2901 exit(EXIT_FAILURE);
2902 }
2903
2904 *maxram_size = sz;
2905 *ram_slots = slots;
2906 } else if ((!maxmem_str && slots_str) ||
2907 (maxmem_str && !slots_str)) {
2908 error_report("invalid -m option value: missing "
2909 "'%s' option", slots_str ? "maxmem" : "slots");
2910 exit(EXIT_FAILURE);
2911 }
2912
2913 loc_pop(&loc);
2914 }
2915
2916 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2917 {
2918 GlobalProperty *g;
2919
2920 g = g_malloc0(sizeof(*g));
2921 g->driver = qemu_opt_get(opts, "driver");
2922 g->property = qemu_opt_get(opts, "property");
2923 g->value = qemu_opt_get(opts, "value");
2924 g->user_provided = true;
2925 qdev_prop_register_global(g);
2926 return 0;
2927 }
2928
2929 int main(int argc, char **argv, char **envp)
2930 {
2931 int i;
2932 int snapshot, linux_boot;
2933 const char *initrd_filename;
2934 const char *kernel_filename, *kernel_cmdline;
2935 const char *boot_order = NULL;
2936 const char *boot_once = NULL;
2937 DisplayState *ds;
2938 int cyls, heads, secs, translation;
2939 QemuOpts *hda_opts = NULL, *opts, *machine_opts, *icount_opts = NULL;
2940 QemuOptsList *olist;
2941 int optind;
2942 const char *optarg;
2943 const char *loadvm = NULL;
2944 MachineClass *machine_class;
2945 const char *cpu_model;
2946 const char *vga_model = NULL;
2947 const char *qtest_chrdev = NULL;
2948 const char *qtest_log = NULL;
2949 const char *pid_file = NULL;
2950 const char *incoming = NULL;
2951 bool defconfig = true;
2952 bool userconfig = true;
2953 bool nographic = false;
2954 DisplayType display_type = DT_DEFAULT;
2955 int display_remote = 0;
2956 const char *log_mask = NULL;
2957 const char *log_file = NULL;
2958 char *trace_file = NULL;
2959 ram_addr_t maxram_size;
2960 uint64_t ram_slots = 0;
2961 FILE *vmstate_dump_file = NULL;
2962 Error *main_loop_err = NULL;
2963 Error *err = NULL;
2964 bool list_data_dirs = false;
2965
2966 qemu_init_cpu_loop();
2967 qemu_mutex_lock_iothread();
2968
2969 atexit(qemu_run_exit_notifiers);
2970 error_set_progname(argv[0]);
2971 qemu_init_exec_dir(argv[0]);
2972
2973 module_call_init(MODULE_INIT_QOM);
2974
2975 qemu_add_opts(&qemu_drive_opts);
2976 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2977 qemu_add_drive_opts(&qemu_common_drive_opts);
2978 qemu_add_drive_opts(&qemu_drive_opts);
2979 qemu_add_opts(&qemu_chardev_opts);
2980 qemu_add_opts(&qemu_device_opts);
2981 qemu_add_opts(&qemu_netdev_opts);
2982 qemu_add_opts(&qemu_net_opts);
2983 qemu_add_opts(&qemu_rtc_opts);
2984 qemu_add_opts(&qemu_global_opts);
2985 qemu_add_opts(&qemu_mon_opts);
2986 qemu_add_opts(&qemu_trace_opts);
2987 qemu_add_opts(&qemu_option_rom_opts);
2988 qemu_add_opts(&qemu_machine_opts);
2989 qemu_add_opts(&qemu_mem_opts);
2990 qemu_add_opts(&qemu_smp_opts);
2991 qemu_add_opts(&qemu_boot_opts);
2992 qemu_add_opts(&qemu_sandbox_opts);
2993 qemu_add_opts(&qemu_add_fd_opts);
2994 qemu_add_opts(&qemu_object_opts);
2995 qemu_add_opts(&qemu_tpmdev_opts);
2996 qemu_add_opts(&qemu_realtime_opts);
2997 qemu_add_opts(&qemu_msg_opts);
2998 qemu_add_opts(&qemu_name_opts);
2999 qemu_add_opts(&qemu_numa_opts);
3000 qemu_add_opts(&qemu_icount_opts);
3001 qemu_add_opts(&qemu_semihosting_config_opts);
3002 qemu_add_opts(&qemu_fw_cfg_opts);
3003 module_call_init(MODULE_INIT_OPTS);
3004
3005 runstate_init();
3006
3007 if (qcrypto_init(&err) < 0) {
3008 error_reportf_err(err, "cannot initialize crypto: ");
3009 exit(1);
3010 }
3011 rtc_clock = QEMU_CLOCK_HOST;
3012
3013 QLIST_INIT (&vm_change_state_head);
3014 os_setup_early_signal_handling();
3015
3016 cpu_model = NULL;
3017 snapshot = 0;
3018 cyls = heads = secs = 0;
3019 translation = BIOS_ATA_TRANSLATION_AUTO;
3020
3021 nb_nics = 0;
3022
3023 bdrv_init_with_whitelist();
3024
3025 autostart = 1;
3026
3027 /* first pass of option parsing */
3028 optind = 1;
3029 while (optind < argc) {
3030 if (argv[optind][0] != '-') {
3031 /* disk image */
3032 optind++;
3033 } else {
3034 const QEMUOption *popt;
3035
3036 popt = lookup_opt(argc, argv, &optarg, &optind);
3037 switch (popt->index) {
3038 case QEMU_OPTION_nodefconfig:
3039 defconfig = false;
3040 break;
3041 case QEMU_OPTION_nouserconfig:
3042 userconfig = false;
3043 break;
3044 }
3045 }
3046 }
3047
3048 if (defconfig) {
3049 int ret;
3050 ret = qemu_read_default_config_files(userconfig);
3051 if (ret < 0) {
3052 exit(1);
3053 }
3054 }
3055
3056 /* second pass of option parsing */
3057 optind = 1;
3058 for(;;) {
3059 if (optind >= argc)
3060 break;
3061 if (argv[optind][0] != '-') {
3062 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3063 } else {
3064 const QEMUOption *popt;
3065
3066 popt = lookup_opt(argc, argv, &optarg, &optind);
3067 if (!(popt->arch_mask & arch_type)) {
3068 error_report("Option not supported for this target");
3069 exit(1);
3070 }
3071 switch(popt->index) {
3072 case QEMU_OPTION_no_kvm_irqchip: {
3073 olist = qemu_find_opts("machine");
3074 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3075 break;
3076 }
3077 case QEMU_OPTION_cpu:
3078 /* hw initialization will check this */
3079 cpu_model = optarg;
3080 break;
3081 case QEMU_OPTION_hda:
3082 {
3083 char buf[256];
3084 if (cyls == 0)
3085 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
3086 else
3087 snprintf(buf, sizeof(buf),
3088 "%s,cyls=%d,heads=%d,secs=%d%s",
3089 HD_OPTS , cyls, heads, secs,
3090 translation == BIOS_ATA_TRANSLATION_LBA ?
3091 ",trans=lba" :
3092 translation == BIOS_ATA_TRANSLATION_NONE ?
3093 ",trans=none" : "");
3094 drive_add(IF_DEFAULT, 0, optarg, buf);
3095 break;
3096 }
3097 case QEMU_OPTION_hdb:
3098 case QEMU_OPTION_hdc:
3099 case QEMU_OPTION_hdd:
3100 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3101 HD_OPTS);
3102 break;
3103 case QEMU_OPTION_drive:
3104 if (drive_def(optarg) == NULL) {
3105 exit(1);
3106 }
3107 break;
3108 case QEMU_OPTION_set:
3109 if (qemu_set_option(optarg) != 0)
3110 exit(1);
3111 break;
3112 case QEMU_OPTION_global:
3113 if (qemu_global_option(optarg) != 0)
3114 exit(1);
3115 break;
3116 case QEMU_OPTION_mtdblock:
3117 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3118 break;
3119 case QEMU_OPTION_sd:
3120 drive_add(IF_SD, -1, optarg, SD_OPTS);
3121 break;
3122 case QEMU_OPTION_pflash:
3123 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3124 break;
3125 case QEMU_OPTION_snapshot:
3126 snapshot = 1;
3127 break;
3128 case QEMU_OPTION_hdachs:
3129 {
3130 const char *p;
3131 p = optarg;
3132 cyls = strtol(p, (char **)&p, 0);
3133 if (cyls < 1 || cyls > 16383)
3134 goto chs_fail;
3135 if (*p != ',')
3136 goto chs_fail;
3137 p++;
3138 heads = strtol(p, (char **)&p, 0);
3139 if (heads < 1 || heads > 16)
3140 goto chs_fail;
3141 if (*p != ',')
3142 goto chs_fail;
3143 p++;
3144 secs = strtol(p, (char **)&p, 0);
3145 if (secs < 1 || secs > 63)
3146 goto chs_fail;
3147 if (*p == ',') {
3148 p++;
3149 if (!strcmp(p, "large")) {
3150 translation = BIOS_ATA_TRANSLATION_LARGE;
3151 } else if (!strcmp(p, "rechs")) {
3152 translation = BIOS_ATA_TRANSLATION_RECHS;
3153 } else if (!strcmp(p, "none")) {
3154 translation = BIOS_ATA_TRANSLATION_NONE;
3155 } else if (!strcmp(p, "lba")) {
3156 translation = BIOS_ATA_TRANSLATION_LBA;
3157 } else if (!strcmp(p, "auto")) {
3158 translation = BIOS_ATA_TRANSLATION_AUTO;
3159 } else {
3160 goto chs_fail;
3161 }
3162 } else if (*p != '\0') {
3163 chs_fail:
3164 error_report("invalid physical CHS format");
3165 exit(1);
3166 }
3167 if (hda_opts != NULL) {
3168 qemu_opt_set_number(hda_opts, "cyls", cyls,
3169 &error_abort);
3170 qemu_opt_set_number(hda_opts, "heads", heads,
3171 &error_abort);
3172 qemu_opt_set_number(hda_opts, "secs", secs,
3173 &error_abort);
3174 if (translation == BIOS_ATA_TRANSLATION_LARGE) {
3175 qemu_opt_set(hda_opts, "trans", "large",
3176 &error_abort);
3177 } else if (translation == BIOS_ATA_TRANSLATION_RECHS) {
3178 qemu_opt_set(hda_opts, "trans", "rechs",
3179 &error_abort);
3180 } else if (translation == BIOS_ATA_TRANSLATION_LBA) {
3181 qemu_opt_set(hda_opts, "trans", "lba",
3182 &error_abort);
3183 } else if (translation == BIOS_ATA_TRANSLATION_NONE) {
3184 qemu_opt_set(hda_opts, "trans", "none",
3185 &error_abort);
3186 }
3187 }
3188 }
3189 break;
3190 case QEMU_OPTION_numa:
3191 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3192 optarg, true);
3193 if (!opts) {
3194 exit(1);
3195 }
3196 break;
3197 case QEMU_OPTION_display:
3198 display_type = select_display(optarg);
3199 break;
3200 case QEMU_OPTION_nographic:
3201 olist = qemu_find_opts("machine");
3202 qemu_opts_parse_noisily(olist, "graphics=off", false);
3203 nographic = true;
3204 display_type = DT_NONE;
3205 break;
3206 case QEMU_OPTION_curses:
3207 #ifdef CONFIG_CURSES
3208 display_type = DT_CURSES;
3209 #else
3210 error_report("curses support is disabled");
3211 exit(1);
3212 #endif
3213 break;
3214 case QEMU_OPTION_portrait:
3215 graphic_rotate = 90;
3216 break;
3217 case QEMU_OPTION_rotate:
3218 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3219 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3220 graphic_rotate != 180 && graphic_rotate != 270) {
3221 error_report("only 90, 180, 270 deg rotation is available");
3222 exit(1);
3223 }
3224 break;
3225 case QEMU_OPTION_kernel:
3226 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3227 &error_abort);
3228 break;
3229 case QEMU_OPTION_initrd:
3230 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3231 &error_abort);
3232 break;
3233 case QEMU_OPTION_append:
3234 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3235 &error_abort);
3236 break;
3237 case QEMU_OPTION_dtb:
3238 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3239 &error_abort);
3240 break;
3241 case QEMU_OPTION_cdrom:
3242 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3243 break;
3244 case QEMU_OPTION_boot:
3245 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3246 optarg, true);
3247 if (!opts) {
3248 exit(1);
3249 }
3250 break;
3251 case QEMU_OPTION_fda:
3252 case QEMU_OPTION_fdb:
3253 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3254 optarg, FD_OPTS);
3255 break;
3256 case QEMU_OPTION_no_fd_bootchk:
3257 fd_bootchk = 0;
3258 break;
3259 case QEMU_OPTION_netdev:
3260 default_net = 0;
3261 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3262 exit(1);
3263 }
3264 break;
3265 case QEMU_OPTION_net:
3266 default_net = 0;
3267 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3268 exit(1);
3269 }
3270 break;
3271 #ifdef CONFIG_LIBISCSI
3272 case QEMU_OPTION_iscsi:
3273 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3274 optarg, false);
3275 if (!opts) {
3276 exit(1);
3277 }
3278 break;
3279 #endif
3280 #ifdef CONFIG_SLIRP
3281 case QEMU_OPTION_tftp:
3282 error_report("The -tftp option is deprecated. "
3283 "Please use '-netdev user,tftp=...' instead.");
3284 legacy_tftp_prefix = optarg;
3285 break;
3286 case QEMU_OPTION_bootp:
3287 error_report("The -bootp option is deprecated. "
3288 "Please use '-netdev user,bootfile=...' instead.");
3289 legacy_bootp_filename = optarg;
3290 break;
3291 case QEMU_OPTION_redir:
3292 error_report("The -redir option is deprecated. "
3293 "Please use '-netdev user,hostfwd=...' instead.");
3294 if (net_slirp_redir(optarg) < 0)
3295 exit(1);
3296 break;
3297 #endif
3298 case QEMU_OPTION_bt:
3299 add_device_config(DEV_BT, optarg);
3300 break;
3301 case QEMU_OPTION_audio_help:
3302 AUD_help ();
3303 exit (0);
3304 break;
3305 case QEMU_OPTION_soundhw:
3306 select_soundhw (optarg);
3307 break;
3308 case QEMU_OPTION_h:
3309 help(0);
3310 break;
3311 case QEMU_OPTION_version:
3312 version();
3313 exit(0);
3314 break;
3315 case QEMU_OPTION_m:
3316 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3317 optarg, true);
3318 if (!opts) {
3319 exit(EXIT_FAILURE);
3320 }
3321 break;
3322 #ifdef CONFIG_TPM
3323 case QEMU_OPTION_tpmdev:
3324 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3325 exit(1);
3326 }
3327 break;
3328 #endif
3329 case QEMU_OPTION_mempath:
3330 mem_path = optarg;
3331 break;
3332 case QEMU_OPTION_mem_prealloc:
3333 mem_prealloc = 1;
3334 break;
3335 case QEMU_OPTION_d:
3336 log_mask = optarg;
3337 break;
3338 case QEMU_OPTION_D:
3339 log_file = optarg;
3340 break;
3341 case QEMU_OPTION_DFILTER:
3342 qemu_set_dfilter_ranges(optarg, &error_fatal);
3343 break;
3344 case QEMU_OPTION_s:
3345 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3346 break;
3347 case QEMU_OPTION_gdb:
3348 add_device_config(DEV_GDB, optarg);
3349 break;
3350 case QEMU_OPTION_L:
3351 if (is_help_option(optarg)) {
3352 list_data_dirs = true;
3353 } else if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3354 data_dir[data_dir_idx++] = optarg;
3355 }
3356 break;
3357 case QEMU_OPTION_bios:
3358 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3359 &error_abort);
3360 break;
3361 case QEMU_OPTION_singlestep:
3362 singlestep = 1;
3363 break;
3364 case QEMU_OPTION_S:
3365 autostart = 0;
3366 break;
3367 case QEMU_OPTION_k:
3368 keyboard_layout = optarg;
3369 break;
3370 case QEMU_OPTION_localtime:
3371 rtc_utc = 0;
3372 break;
3373 case QEMU_OPTION_vga:
3374 vga_model = optarg;
3375 default_vga = 0;
3376 break;
3377 case QEMU_OPTION_g:
3378 {
3379 const char *p;
3380 int w, h, depth;
3381 p = optarg;
3382 w = strtol(p, (char **)&p, 10);
3383 if (w <= 0) {
3384 graphic_error:
3385 error_report("invalid resolution or depth");
3386 exit(1);
3387 }
3388 if (*p != 'x')
3389 goto graphic_error;
3390 p++;
3391 h = strtol(p, (char **)&p, 10);
3392 if (h <= 0)
3393 goto graphic_error;
3394 if (*p == 'x') {
3395 p++;
3396 depth = strtol(p, (char **)&p, 10);
3397 if (depth != 8 && depth != 15 && depth != 16 &&
3398 depth != 24 && depth != 32)
3399 goto graphic_error;
3400 } else if (*p == '\0') {
3401 depth = graphic_depth;
3402 } else {
3403 goto graphic_error;
3404 }
3405
3406 graphic_width = w;
3407 graphic_height = h;
3408 graphic_depth = depth;
3409 }
3410 break;
3411 case QEMU_OPTION_echr:
3412 {
3413 char *r;
3414 term_escape_char = strtol(optarg, &r, 0);
3415 if (r == optarg)
3416 printf("Bad argument to echr\n");
3417 break;
3418 }
3419 case QEMU_OPTION_monitor:
3420 default_monitor = 0;
3421 if (strncmp(optarg, "none", 4)) {
3422 monitor_parse(optarg, "readline", false);
3423 }
3424 break;
3425 case QEMU_OPTION_qmp:
3426 monitor_parse(optarg, "control", false);
3427 default_monitor = 0;
3428 break;
3429 case QEMU_OPTION_qmp_pretty:
3430 monitor_parse(optarg, "control", true);
3431 default_monitor = 0;
3432 break;
3433 case QEMU_OPTION_mon:
3434 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3435 true);
3436 if (!opts) {
3437 exit(1);
3438 }
3439 default_monitor = 0;
3440 break;
3441 case QEMU_OPTION_chardev:
3442 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3443 optarg, true);
3444 if (!opts) {
3445 exit(1);
3446 }
3447 break;
3448 case QEMU_OPTION_fsdev:
3449 olist = qemu_find_opts("fsdev");
3450 if (!olist) {
3451 error_report("fsdev support is disabled");
3452 exit(1);
3453 }
3454 opts = qemu_opts_parse_noisily(olist, optarg, true);
3455 if (!opts) {
3456 exit(1);
3457 }
3458 break;
3459 case QEMU_OPTION_virtfs: {
3460 QemuOpts *fsdev;
3461 QemuOpts *device;
3462 const char *writeout, *sock_fd, *socket;
3463
3464 olist = qemu_find_opts("virtfs");
3465 if (!olist) {
3466 error_report("virtfs support is disabled");
3467 exit(1);
3468 }
3469 opts = qemu_opts_parse_noisily(olist, optarg, true);
3470 if (!opts) {
3471 exit(1);
3472 }
3473
3474 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3475 qemu_opt_get(opts, "mount_tag") == NULL) {
3476 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3477 exit(1);
3478 }
3479 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3480 qemu_opt_get(opts, "mount_tag"),
3481 1, NULL);
3482 if (!fsdev) {
3483 error_report("duplicate fsdev id: %s",
3484 qemu_opt_get(opts, "mount_tag"));
3485 exit(1);
3486 }
3487
3488 writeout = qemu_opt_get(opts, "writeout");
3489 if (writeout) {
3490 #ifdef CONFIG_SYNC_FILE_RANGE
3491 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3492 #else
3493 error_report("writeout=immediate not supported "
3494 "on this platform");
3495 exit(1);
3496 #endif
3497 }
3498 qemu_opt_set(fsdev, "fsdriver",
3499 qemu_opt_get(opts, "fsdriver"), &error_abort);
3500 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"),
3501 &error_abort);
3502 qemu_opt_set(fsdev, "security_model",
3503 qemu_opt_get(opts, "security_model"),
3504 &error_abort);
3505 socket = qemu_opt_get(opts, "socket");
3506 if (socket) {
3507 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3508 }
3509 sock_fd = qemu_opt_get(opts, "sock_fd");
3510 if (sock_fd) {
3511 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3512 }
3513
3514 qemu_opt_set_bool(fsdev, "readonly",
3515 qemu_opt_get_bool(opts, "readonly", 0),
3516 &error_abort);
3517 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3518 &error_abort);
3519 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3520 qemu_opt_set(device, "fsdev",
3521 qemu_opt_get(opts, "mount_tag"), &error_abort);
3522 qemu_opt_set(device, "mount_tag",
3523 qemu_opt_get(opts, "mount_tag"), &error_abort);
3524 break;
3525 }
3526 case QEMU_OPTION_virtfs_synth: {
3527 QemuOpts *fsdev;
3528 QemuOpts *device;
3529
3530 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3531 1, NULL);
3532 if (!fsdev) {
3533 error_report("duplicate option: %s", "virtfs_synth");
3534 exit(1);
3535 }
3536 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3537
3538 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3539 &error_abort);
3540 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3541 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3542 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3543 break;
3544 }
3545 case QEMU_OPTION_serial:
3546 add_device_config(DEV_SERIAL, optarg);
3547 default_serial = 0;
3548 if (strncmp(optarg, "mon:", 4) == 0) {
3549 default_monitor = 0;
3550 }
3551 break;
3552 case QEMU_OPTION_watchdog:
3553 if (watchdog) {
3554 error_report("only one watchdog option may be given");
3555 return 1;
3556 }
3557 watchdog = optarg;
3558 break;
3559 case QEMU_OPTION_watchdog_action:
3560 if (select_watchdog_action(optarg) == -1) {
3561 error_report("unknown -watchdog-action parameter");
3562 exit(1);
3563 }
3564 break;
3565 case QEMU_OPTION_virtiocon:
3566 add_device_config(DEV_VIRTCON, optarg);
3567 default_virtcon = 0;
3568 if (strncmp(optarg, "mon:", 4) == 0) {
3569 default_monitor = 0;
3570 }
3571 break;
3572 case QEMU_OPTION_parallel:
3573 add_device_config(DEV_PARALLEL, optarg);
3574 default_parallel = 0;
3575 if (strncmp(optarg, "mon:", 4) == 0) {
3576 default_monitor = 0;
3577 }
3578 break;
3579 case QEMU_OPTION_debugcon:
3580 add_device_config(DEV_DEBUGCON, optarg);
3581 break;
3582 case QEMU_OPTION_loadvm:
3583 loadvm = optarg;
3584 break;
3585 case QEMU_OPTION_full_screen:
3586 full_screen = 1;
3587 break;
3588 case QEMU_OPTION_no_frame:
3589 no_frame = 1;
3590 break;
3591 case QEMU_OPTION_alt_grab:
3592 alt_grab = 1;
3593 break;
3594 case QEMU_OPTION_ctrl_grab:
3595 ctrl_grab = 1;
3596 break;
3597 case QEMU_OPTION_no_quit:
3598 no_quit = 1;
3599 break;
3600 case QEMU_OPTION_sdl:
3601 #ifdef CONFIG_SDL
3602 display_type = DT_SDL;
3603 break;
3604 #else
3605 error_report("SDL support is disabled");
3606 exit(1);
3607 #endif
3608 case QEMU_OPTION_pidfile:
3609 pid_file = optarg;
3610 break;
3611 case QEMU_OPTION_win2k_hack:
3612 win2k_install_hack = 1;
3613 break;
3614 case QEMU_OPTION_rtc_td_hack: {
3615 static GlobalProperty slew_lost_ticks = {
3616 .driver = "mc146818rtc",
3617 .property = "lost_tick_policy",
3618 .value = "slew",
3619 };
3620
3621 qdev_prop_register_global(&slew_lost_ticks);
3622 break;
3623 }
3624 case QEMU_OPTION_acpitable:
3625 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3626 optarg, true);
3627 if (!opts) {
3628 exit(1);
3629 }
3630 do_acpitable_option(opts);
3631 break;
3632 case QEMU_OPTION_smbios:
3633 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3634 optarg, false);
3635 if (!opts) {
3636 exit(1);
3637 }
3638 do_smbios_option(opts);
3639 break;
3640 case QEMU_OPTION_fwcfg:
3641 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3642 optarg, true);
3643 if (opts == NULL) {
3644 exit(1);
3645 }
3646 break;
3647 case QEMU_OPTION_enable_kvm:
3648 olist = qemu_find_opts("machine");
3649 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3650 break;
3651 case QEMU_OPTION_M:
3652 case QEMU_OPTION_machine:
3653 olist = qemu_find_opts("machine");
3654 opts = qemu_opts_parse_noisily(olist, optarg, true);
3655 if (!opts) {
3656 exit(1);
3657 }
3658 break;
3659 case QEMU_OPTION_no_kvm:
3660 olist = qemu_find_opts("machine");
3661 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3662 break;
3663 case QEMU_OPTION_no_kvm_pit: {
3664 error_report("warning: ignoring deprecated option");
3665 break;
3666 }
3667 case QEMU_OPTION_no_kvm_pit_reinjection: {
3668 static GlobalProperty kvm_pit_lost_tick_policy = {
3669 .driver = "kvm-pit",
3670 .property = "lost_tick_policy",
3671 .value = "discard",
3672 };
3673
3674 error_report("warning: deprecated, replaced by "
3675 "-global kvm-pit.lost_tick_policy=discard");
3676 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3677 break;
3678 }
3679 case QEMU_OPTION_usb:
3680 olist = qemu_find_opts("machine");
3681 qemu_opts_parse_noisily(olist, "usb=on", false);
3682 break;
3683 case QEMU_OPTION_usbdevice:
3684 olist = qemu_find_opts("machine");
3685 qemu_opts_parse_noisily(olist, "usb=on", false);
3686 add_device_config(DEV_USB, optarg);
3687 break;
3688 case QEMU_OPTION_device:
3689 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3690 optarg, true)) {
3691 exit(1);
3692 }
3693 break;
3694 case QEMU_OPTION_smp:
3695 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3696 optarg, true)) {
3697 exit(1);
3698 }
3699 break;
3700 case QEMU_OPTION_vnc:
3701 vnc_parse(optarg, &error_fatal);
3702 break;
3703 case QEMU_OPTION_no_acpi:
3704 acpi_enabled = 0;
3705 break;
3706 case QEMU_OPTION_no_hpet:
3707 no_hpet = 1;
3708 break;
3709 case QEMU_OPTION_balloon:
3710 if (balloon_parse(optarg) < 0) {
3711 error_report("unknown -balloon argument %s", optarg);
3712 exit(1);
3713 }
3714 break;
3715 case QEMU_OPTION_no_reboot:
3716 no_reboot = 1;
3717 break;
3718 case QEMU_OPTION_no_shutdown:
3719 no_shutdown = 1;
3720 break;
3721 case QEMU_OPTION_show_cursor:
3722 cursor_hide = 0;
3723 break;
3724 case QEMU_OPTION_uuid:
3725 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3726 error_report("failed to parse UUID string: wrong format");
3727 exit(1);
3728 }
3729 qemu_uuid_set = true;
3730 break;
3731 case QEMU_OPTION_option_rom:
3732 if (nb_option_roms >= MAX_OPTION_ROMS) {
3733 error_report("too many option ROMs");
3734 exit(1);
3735 }
3736 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3737 optarg, true);
3738 if (!opts) {
3739 exit(1);
3740 }
3741 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3742 option_rom[nb_option_roms].bootindex =
3743 qemu_opt_get_number(opts, "bootindex", -1);
3744 if (!option_rom[nb_option_roms].name) {
3745 error_report("Option ROM file is not specified");
3746 exit(1);
3747 }
3748 nb_option_roms++;
3749 break;
3750 case QEMU_OPTION_semihosting:
3751 semihosting.enabled = true;
3752 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3753 break;
3754 case QEMU_OPTION_semihosting_config:
3755 semihosting.enabled = true;
3756 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3757 optarg, false);
3758 if (opts != NULL) {
3759 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3760 true);
3761 const char *target = qemu_opt_get(opts, "target");
3762 if (target != NULL) {
3763 if (strcmp("native", target) == 0) {
3764 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3765 } else if (strcmp("gdb", target) == 0) {
3766 semihosting.target = SEMIHOSTING_TARGET_GDB;
3767 } else if (strcmp("auto", target) == 0) {
3768 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3769 } else {
3770 error_report("unsupported semihosting-config %s",
3771 optarg);
3772 exit(1);
3773 }
3774 } else {
3775 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3776 }
3777 /* Set semihosting argument count and vector */
3778 qemu_opt_foreach(opts, add_semihosting_arg,
3779 &semihosting, NULL);
3780 } else {
3781 error_report("unsupported semihosting-config %s", optarg);
3782 exit(1);
3783 }
3784 break;
3785 case QEMU_OPTION_tdf:
3786 error_report("warning: ignoring deprecated option");
3787 break;
3788 case QEMU_OPTION_name:
3789 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3790 optarg, true);
3791 if (!opts) {
3792 exit(1);
3793 }
3794 break;
3795 case QEMU_OPTION_prom_env:
3796 if (nb_prom_envs >= MAX_PROM_ENVS) {
3797 error_report("too many prom variables");
3798 exit(1);
3799 }
3800 prom_envs[nb_prom_envs] = optarg;
3801 nb_prom_envs++;
3802 break;
3803 case QEMU_OPTION_old_param:
3804 old_param = 1;
3805 break;
3806 case QEMU_OPTION_clock:
3807 /* Clock options no longer exist. Keep this option for
3808 * backward compatibility.
3809 */
3810 break;
3811 case QEMU_OPTION_startdate:
3812 configure_rtc_date_offset(optarg, 1);
3813 break;
3814 case QEMU_OPTION_rtc:
3815 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3816 false);
3817 if (!opts) {
3818 exit(1);
3819 }
3820 configure_rtc(opts);
3821 break;
3822 case QEMU_OPTION_tb_size:
3823 tcg_tb_size = strtol(optarg, NULL, 0);
3824 if (tcg_tb_size < 0) {
3825 tcg_tb_size = 0;
3826 }
3827 break;
3828 case QEMU_OPTION_icount:
3829 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3830 optarg, true);
3831 if (!icount_opts) {
3832 exit(1);
3833 }
3834 break;
3835 case QEMU_OPTION_incoming:
3836 if (!incoming) {
3837 runstate_set(RUN_STATE_INMIGRATE);
3838 }
3839 incoming = optarg;
3840 break;
3841 case QEMU_OPTION_nodefaults:
3842 has_defaults = 0;
3843 break;
3844 case QEMU_OPTION_xen_domid:
3845 if (!(xen_available())) {
3846 error_report("Option not supported for this target");
3847 exit(1);
3848 }
3849 xen_domid = atoi(optarg);
3850 break;
3851 case QEMU_OPTION_xen_create:
3852 if (!(xen_available())) {
3853 error_report("Option not supported for this target");
3854 exit(1);
3855 }
3856 xen_mode = XEN_CREATE;
3857 break;
3858 case QEMU_OPTION_xen_attach:
3859 if (!(xen_available())) {
3860 error_report("Option not supported for this target");
3861 exit(1);
3862 }
3863 xen_mode = XEN_ATTACH;
3864 break;
3865 case QEMU_OPTION_trace:
3866 g_free(trace_file);
3867 trace_file = trace_opt_parse(optarg);
3868 break;
3869 case QEMU_OPTION_readconfig:
3870 {
3871 int ret = qemu_read_config_file(optarg);
3872 if (ret < 0) {
3873 error_report("read config %s: %s", optarg,
3874 strerror(-ret));
3875 exit(1);
3876 }
3877 break;
3878 }
3879 case QEMU_OPTION_spice:
3880 olist = qemu_find_opts("spice");
3881 if (!olist) {
3882 error_report("spice support is disabled");
3883 exit(1);
3884 }
3885 opts = qemu_opts_parse_noisily(olist, optarg, false);
3886 if (!opts) {
3887 exit(1);
3888 }
3889 display_remote++;
3890 break;
3891 case QEMU_OPTION_writeconfig:
3892 {
3893 FILE *fp;
3894 if (strcmp(optarg, "-") == 0) {
3895 fp = stdout;
3896 } else {
3897 fp = fopen(optarg, "w");
3898 if (fp == NULL) {
3899 error_report("open %s: %s", optarg,
3900 strerror(errno));
3901 exit(1);
3902 }
3903 }
3904 qemu_config_write(fp);
3905 if (fp != stdout) {
3906 fclose(fp);
3907 }
3908 break;
3909 }
3910 case QEMU_OPTION_qtest:
3911 qtest_chrdev = optarg;
3912 break;
3913 case QEMU_OPTION_qtest_log:
3914 qtest_log = optarg;
3915 break;
3916 case QEMU_OPTION_sandbox:
3917 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3918 optarg, true);
3919 if (!opts) {
3920 exit(1);
3921 }
3922 break;
3923 case QEMU_OPTION_add_fd:
3924 #ifndef _WIN32
3925 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3926 optarg, false);
3927 if (!opts) {
3928 exit(1);
3929 }
3930 #else
3931 error_report("File descriptor passing is disabled on this "
3932 "platform");
3933 exit(1);
3934 #endif
3935 break;
3936 case QEMU_OPTION_object:
3937 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3938 optarg, true);
3939 if (!opts) {
3940 exit(1);
3941 }
3942 break;
3943 case QEMU_OPTION_realtime:
3944 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3945 optarg, false);
3946 if (!opts) {
3947 exit(1);
3948 }
3949 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
3950 break;
3951 case QEMU_OPTION_msg:
3952 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3953 false);
3954 if (!opts) {
3955 exit(1);
3956 }
3957 configure_msg(opts);
3958 break;
3959 case QEMU_OPTION_dump_vmstate:
3960 if (vmstate_dump_file) {
3961 error_report("only one '-dump-vmstate' "
3962 "option may be given");
3963 exit(1);
3964 }
3965 vmstate_dump_file = fopen(optarg, "w");
3966 if (vmstate_dump_file == NULL) {
3967 error_report("open %s: %s", optarg, strerror(errno));
3968 exit(1);
3969 }
3970 break;
3971 default:
3972 os_parse_cmd_args(popt->index, optarg);
3973 }
3974 }
3975 }
3976 /*
3977 * Clear error location left behind by the loop.
3978 * Best done right after the loop. Do not insert code here!
3979 */
3980 loc_set_none();
3981
3982 replay_configure(icount_opts);
3983
3984 machine_class = select_machine();
3985
3986 set_memory_options(&ram_slots, &maxram_size, machine_class);
3987
3988 os_daemonize();
3989
3990 if (qemu_init_main_loop(&main_loop_err)) {
3991 error_report_err(main_loop_err);
3992 exit(1);
3993 }
3994
3995 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
3996 parse_sandbox, NULL, NULL)) {
3997 exit(1);
3998 }
3999
4000 if (qemu_opts_foreach(qemu_find_opts("name"),
4001 parse_name, NULL, NULL)) {
4002 exit(1);
4003 }
4004
4005 #ifndef _WIN32
4006 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4007 parse_add_fd, NULL, NULL)) {
4008 exit(1);
4009 }
4010
4011 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4012 cleanup_add_fd, NULL, NULL)) {
4013 exit(1);
4014 }
4015 #endif
4016
4017 current_machine = MACHINE(object_new(object_class_get_name(
4018 OBJECT_CLASS(machine_class))));
4019 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4020 exit(0);
4021 }
4022 object_property_add_child(object_get_root(), "machine",
4023 OBJECT(current_machine), &error_abort);
4024 cpu_exec_init_all();
4025
4026 if (machine_class->hw_version) {
4027 qemu_set_hw_version(machine_class->hw_version);
4028 }
4029
4030 if (cpu_model && is_help_option(cpu_model)) {
4031 list_cpus(stdout, &fprintf, cpu_model);
4032 exit(0);
4033 }
4034
4035 if (!trace_init_backends()) {
4036 exit(1);
4037 }
4038 trace_init_file(trace_file);
4039
4040 /* Open the logfile at this point and set the log mask if necessary.
4041 */
4042 if (log_file) {
4043 qemu_set_log_filename(log_file, &error_fatal);
4044 }
4045
4046 if (log_mask) {
4047 int mask;
4048 mask = qemu_str_to_log_mask(log_mask);
4049 if (!mask) {
4050 qemu_print_log_usage(stdout);
4051 exit(1);
4052 }
4053 qemu_set_log(mask);
4054 } else {
4055 qemu_set_log(0);
4056 }
4057
4058 /* If no data_dir is specified then try to find it relative to the
4059 executable path. */
4060 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4061 data_dir[data_dir_idx] = os_find_datadir();
4062 if (data_dir[data_dir_idx] != NULL) {
4063 data_dir_idx++;
4064 }
4065 }
4066 /* If all else fails use the install path specified when building. */
4067 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
4068 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
4069 }
4070
4071 /* -L help lists the data directories and exits. */
4072 if (list_data_dirs) {
4073 for (i = 0; i < data_dir_idx; i++) {
4074 printf("%s\n", data_dir[i]);
4075 }
4076 exit(0);
4077 }
4078
4079 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4080
4081 machine_class->max_cpus = machine_class->max_cpus ?: 1; /* Default to UP */
4082 if (max_cpus > machine_class->max_cpus) {
4083 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs "
4084 "supported by machine '%s' (%d)", max_cpus,
4085 machine_class->name, machine_class->max_cpus);
4086 exit(1);
4087 }
4088
4089 /*
4090 * Get the default machine options from the machine if it is not already
4091 * specified either by the configuration file or by the command line.
4092 */
4093 if (machine_class->default_machine_opts) {
4094 qemu_opts_set_defaults(qemu_find_opts("machine"),
4095 machine_class->default_machine_opts, 0);
4096 }
4097
4098 qemu_opts_foreach(qemu_find_opts("device"),
4099 default_driver_check, NULL, NULL);
4100 qemu_opts_foreach(qemu_find_opts("global"),
4101 default_driver_check, NULL, NULL);
4102
4103 if (!vga_model && !default_vga) {
4104 vga_interface_type = VGA_DEVICE;
4105 }
4106 if (!has_defaults || machine_class->no_serial) {
4107 default_serial = 0;
4108 }
4109 if (!has_defaults || machine_class->no_parallel) {
4110 default_parallel = 0;
4111 }
4112 if (!has_defaults || !machine_class->use_virtcon) {
4113 default_virtcon = 0;
4114 }
4115 if (!has_defaults || !machine_class->use_sclp) {
4116 default_sclp = 0;
4117 }
4118 if (!has_defaults || machine_class->no_floppy) {
4119 default_floppy = 0;
4120 }
4121 if (!has_defaults || machine_class->no_cdrom) {
4122 default_cdrom = 0;
4123 }
4124 if (!has_defaults || machine_class->no_sdcard) {
4125 default_sdcard = 0;
4126 }
4127 if (!has_defaults) {
4128 default_monitor = 0;
4129 default_net = 0;
4130 default_vga = 0;
4131 }
4132
4133 if (is_daemonized()) {
4134 /* According to documentation and historically, -nographic redirects
4135 * serial port, parallel port and monitor to stdio, which does not work
4136 * with -daemonize. We can redirect these to null instead, but since
4137 * -nographic is legacy, let's just error out.
4138 * We disallow -nographic only if all other ports are not redirected
4139 * explicitly, to not break existing legacy setups which uses
4140 * -nographic _and_ redirects all ports explicitly - this is valid
4141 * usage, -nographic is just a no-op in this case.
4142 */
4143 if (nographic
4144 && (default_parallel || default_serial
4145 || default_monitor || default_virtcon)) {
4146 error_report("-nographic cannot be used with -daemonize");
4147 exit(1);
4148 }
4149 #ifdef CONFIG_CURSES
4150 if (display_type == DT_CURSES) {
4151 error_report("curses display cannot be used with -daemonize");
4152 exit(1);
4153 }
4154 #endif
4155 }
4156
4157 if (nographic) {
4158 if (default_parallel)
4159 add_device_config(DEV_PARALLEL, "null");
4160 if (default_serial && default_monitor) {
4161 add_device_config(DEV_SERIAL, "mon:stdio");
4162 } else if (default_virtcon && default_monitor) {
4163 add_device_config(DEV_VIRTCON, "mon:stdio");
4164 } else if (default_sclp && default_monitor) {
4165 add_device_config(DEV_SCLP, "mon:stdio");
4166 } else {
4167 if (default_serial)
4168 add_device_config(DEV_SERIAL, "stdio");
4169 if (default_virtcon)
4170 add_device_config(DEV_VIRTCON, "stdio");
4171 if (default_sclp) {
4172 add_device_config(DEV_SCLP, "stdio");
4173 }
4174 if (default_monitor)
4175 monitor_parse("stdio", "readline", false);
4176 }
4177 } else {
4178 if (default_serial)
4179 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4180 if (default_parallel)
4181 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4182 if (default_monitor)
4183 monitor_parse("vc:80Cx24C", "readline", false);
4184 if (default_virtcon)
4185 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4186 if (default_sclp) {
4187 add_device_config(DEV_SCLP, "vc:80Cx24C");
4188 }
4189 }
4190
4191 #if defined(CONFIG_VNC)
4192 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4193 display_remote++;
4194 }
4195 #endif
4196 if (display_type == DT_DEFAULT && !display_remote) {
4197 #if defined(CONFIG_GTK)
4198 display_type = DT_GTK;
4199 #elif defined(CONFIG_SDL)
4200 display_type = DT_SDL;
4201 #elif defined(CONFIG_COCOA)
4202 display_type = DT_COCOA;
4203 #elif defined(CONFIG_VNC)
4204 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4205 #else
4206 display_type = DT_NONE;
4207 #endif
4208 }
4209
4210 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
4211 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4212 "for SDL, ignoring option");
4213 }
4214 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4215 error_report("-no-quit is only valid for GTK and SDL, "
4216 "ignoring option");
4217 }
4218
4219 if (display_type == DT_GTK) {
4220 early_gtk_display_init(request_opengl);
4221 }
4222
4223 if (display_type == DT_SDL) {
4224 sdl_display_early_init(request_opengl);
4225 }
4226
4227 if (request_opengl == 1 && display_opengl == 0) {
4228 #if defined(CONFIG_OPENGL)
4229 error_report("OpenGL is not supported by the display");
4230 #else
4231 error_report("OpenGL support is disabled");
4232 #endif
4233 exit(1);
4234 }
4235
4236 page_size_init();
4237 socket_init();
4238
4239 if (qemu_opts_foreach(qemu_find_opts("object"),
4240 user_creatable_add_opts_foreach,
4241 object_create_initial, NULL)) {
4242 exit(1);
4243 }
4244
4245 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4246 chardev_init_func, NULL, NULL)) {
4247 exit(1);
4248 }
4249
4250 #ifdef CONFIG_VIRTFS
4251 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4252 fsdev_init_func, NULL, NULL)) {
4253 exit(1);
4254 }
4255 #endif
4256
4257 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4258 error_report("could not acquire pid file: %s", strerror(errno));
4259 exit(1);
4260 }
4261
4262 if (qemu_opts_foreach(qemu_find_opts("device"),
4263 device_help_func, NULL, NULL)) {
4264 exit(0);
4265 }
4266
4267 machine_opts = qemu_get_machine_opts();
4268 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4269 NULL)) {
4270 object_unref(OBJECT(current_machine));
4271 exit(1);
4272 }
4273
4274 configure_accelerator(current_machine);
4275
4276 if (qtest_chrdev) {
4277 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4278 }
4279
4280 machine_opts = qemu_get_machine_opts();
4281 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4282 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4283 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4284 bios_name = qemu_opt_get(machine_opts, "firmware");
4285
4286 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4287 if (opts) {
4288 boot_order = qemu_opt_get(opts, "order");
4289 if (boot_order) {
4290 validate_bootdevices(boot_order, &error_fatal);
4291 }
4292
4293 boot_once = qemu_opt_get(opts, "once");
4294 if (boot_once) {
4295 validate_bootdevices(boot_once, &error_fatal);
4296 }
4297
4298 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4299 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4300 }
4301
4302 if (!boot_order) {
4303 boot_order = machine_class->default_boot_order;
4304 }
4305
4306 if (!kernel_cmdline) {
4307 kernel_cmdline = "";
4308 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4309 }
4310
4311 linux_boot = (kernel_filename != NULL);
4312
4313 if (!linux_boot && *kernel_cmdline != '\0') {
4314 error_report("-append only allowed with -kernel option");
4315 exit(1);
4316 }
4317
4318 if (!linux_boot && initrd_filename != NULL) {
4319 error_report("-initrd only allowed with -kernel option");
4320 exit(1);
4321 }
4322
4323 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4324 error_report("-dtb only allowed with -kernel option");
4325 exit(1);
4326 }
4327
4328 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4329 /* fall back to the -kernel/-append */
4330 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4331 }
4332
4333 os_set_line_buffering();
4334
4335 /* spice needs the timers to be initialized by this point */
4336 qemu_spice_init();
4337
4338 cpu_ticks_init();
4339 if (icount_opts) {
4340 if (kvm_enabled() || xen_enabled()) {
4341 error_report("-icount is not allowed with kvm or xen");
4342 exit(1);
4343 }
4344 configure_icount(icount_opts, &error_abort);
4345 qemu_opts_del(icount_opts);
4346 }
4347
4348 if (default_net) {
4349 QemuOptsList *net = qemu_find_opts("net");
4350 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4351 #ifdef CONFIG_SLIRP
4352 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4353 #endif
4354 }
4355
4356 if (net_init_clients() < 0) {
4357 exit(1);
4358 }
4359
4360 if (qemu_opts_foreach(qemu_find_opts("object"),
4361 user_creatable_add_opts_foreach,
4362 object_create_delayed, NULL)) {
4363 exit(1);
4364 }
4365
4366 #ifdef CONFIG_TPM
4367 if (tpm_init() < 0) {
4368 exit(1);
4369 }
4370 #endif
4371
4372 /* init the bluetooth world */
4373 if (foreach_device_config(DEV_BT, bt_parse))
4374 exit(1);
4375
4376 if (!xen_enabled()) {
4377 /* On 32-bit hosts, QEMU is limited by virtual address space */
4378 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4379 error_report("at most 2047 MB RAM can be simulated");
4380 exit(1);
4381 }
4382 }
4383
4384 blk_mig_init();
4385 ram_mig_init();
4386
4387 /* If the currently selected machine wishes to override the units-per-bus
4388 * property of its default HBA interface type, do so now. */
4389 if (machine_class->units_per_default_bus) {
4390 override_max_devs(machine_class->block_default_type,
4391 machine_class->units_per_default_bus);
4392 }
4393
4394 /* open the virtual block devices */
4395 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4396 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4397 NULL, NULL);
4398 }
4399 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4400 &machine_class->block_default_type, NULL)) {
4401 exit(1);
4402 }
4403
4404 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4405 CDROM_OPTS);
4406 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4407 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4408
4409 parse_numa_opts(machine_class);
4410
4411 if (qemu_opts_foreach(qemu_find_opts("mon"),
4412 mon_init_func, NULL, NULL)) {
4413 exit(1);
4414 }
4415
4416 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4417 exit(1);
4418 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4419 exit(1);
4420 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4421 exit(1);
4422 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4423 exit(1);
4424 }
4425 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4426 exit(1);
4427
4428 /* If no default VGA is requested, the default is "none". */
4429 if (default_vga) {
4430 if (machine_class->default_display) {
4431 vga_model = machine_class->default_display;
4432 } else if (vga_interface_available(VGA_CIRRUS)) {
4433 vga_model = "cirrus";
4434 } else if (vga_interface_available(VGA_STD)) {
4435 vga_model = "std";
4436 }
4437 }
4438 if (vga_model) {
4439 select_vgahw(vga_model);
4440 }
4441
4442 if (watchdog) {
4443 i = select_watchdog(watchdog);
4444 if (i > 0)
4445 exit (i == 1 ? 1 : 0);
4446 }
4447
4448 machine_register_compat_props(current_machine);
4449
4450 qemu_opts_foreach(qemu_find_opts("global"),
4451 global_init_func, NULL, NULL);
4452
4453 /* This checkpoint is required by replay to separate prior clock
4454 reading from the other reads, because timer polling functions query
4455 clock values from the log. */
4456 replay_checkpoint(CHECKPOINT_INIT);
4457 qdev_machine_init();
4458
4459 current_machine->ram_size = ram_size;
4460 current_machine->maxram_size = maxram_size;
4461 current_machine->ram_slots = ram_slots;
4462 current_machine->boot_order = boot_order;
4463 current_machine->cpu_model = cpu_model;
4464
4465 machine_class->init(current_machine);
4466
4467 realtime_init();
4468
4469 audio_init();
4470
4471 cpu_synchronize_all_post_init();
4472
4473 numa_post_machine_init();
4474
4475 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4476 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4477 exit(1);
4478 }
4479
4480 /* init USB devices */
4481 if (machine_usb(current_machine)) {
4482 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4483 exit(1);
4484 }
4485
4486 /* Check if IGD GFX passthrough. */
4487 igd_gfx_passthru();
4488
4489 /* init generic devices */
4490 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4491 if (qemu_opts_foreach(qemu_find_opts("device"),
4492 device_init_func, NULL, NULL)) {
4493 exit(1);
4494 }
4495 rom_reset_order_override();
4496
4497 /* Did we create any drives that we failed to create a device for? */
4498 drive_check_orphaned();
4499
4500 /* Don't warn about the default network setup that you get if
4501 * no command line -net or -netdev options are specified. There
4502 * are two cases that we would otherwise complain about:
4503 * (1) board doesn't support a NIC but the implicit "-net nic"
4504 * requested one
4505 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4506 * sets up a nic that isn't connected to anything.
4507 */
4508 if (!default_net) {
4509 net_check_clients();
4510 }
4511
4512
4513 if (boot_once) {
4514 qemu_boot_set(boot_once, &error_fatal);
4515 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4516 }
4517
4518 ds = init_displaystate();
4519
4520 /* init local displays */
4521 switch (display_type) {
4522 case DT_CURSES:
4523 curses_display_init(ds, full_screen);
4524 break;
4525 case DT_SDL:
4526 sdl_display_init(ds, full_screen, no_frame);
4527 break;
4528 case DT_COCOA:
4529 cocoa_display_init(ds, full_screen);
4530 break;
4531 case DT_GTK:
4532 gtk_display_init(ds, full_screen, grab_on_hover);
4533 break;
4534 default:
4535 break;
4536 }
4537
4538 /* must be after terminal init, SDL library changes signal handlers */
4539 os_setup_signal_handling();
4540
4541 /* init remote displays */
4542 #ifdef CONFIG_VNC
4543 qemu_opts_foreach(qemu_find_opts("vnc"),
4544 vnc_init_func, NULL, NULL);
4545 #endif
4546
4547 if (using_spice) {
4548 qemu_spice_display_init();
4549 }
4550
4551 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4552 exit(1);
4553 }
4554
4555 qdev_machine_creation_done();
4556
4557 /* TODO: once all bus devices are qdevified, this should be done
4558 * when bus is created by qdev.c */
4559 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4560 qemu_run_machine_init_done_notifiers();
4561
4562 if (rom_check_and_register_reset() != 0) {
4563 error_report("rom check and register reset failed");
4564 exit(1);
4565 }
4566
4567 replay_start();
4568
4569 /* This checkpoint is required by replay to separate prior clock
4570 reading from the other reads, because timer polling functions query
4571 clock values from the log. */
4572 replay_checkpoint(CHECKPOINT_RESET);
4573 qemu_system_reset(VMRESET_SILENT);
4574 register_global_state();
4575 if (loadvm) {
4576 if (load_vmstate(loadvm) < 0) {
4577 autostart = 0;
4578 }
4579 }
4580
4581 qdev_prop_check_globals();
4582 if (vmstate_dump_file) {
4583 /* dump and exit */
4584 dump_vmstate_json_to_file(vmstate_dump_file);
4585 return 0;
4586 }
4587
4588 if (incoming) {
4589 Error *local_err = NULL;
4590 qemu_start_incoming_migration(incoming, &local_err);
4591 if (local_err) {
4592 error_reportf_err(local_err, "-incoming %s: ", incoming);
4593 exit(1);
4594 }
4595 } else if (autostart) {
4596 vm_start();
4597 }
4598
4599 os_setup_post();
4600
4601 main_loop();
4602 replay_disable_events();
4603
4604 bdrv_close_all();
4605 pause_all_vcpus();
4606 res_free();
4607 #ifdef CONFIG_TPM
4608 tpm_cleanup();
4609 #endif
4610
4611 /* vhost-user must be cleaned up before chardevs. */
4612 net_cleanup();
4613 qemu_chr_cleanup();
4614
4615 return 0;
4616 }
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