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Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-4.1-pull-request...
[qemu/ar7.git] / vl.c
blobddefa75c1d0579315996f648a64dc5516b457450
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu-common.h"
27 #include "qemu/units.h"
28 #include "qapi/error.h"
29 #include "qemu-version.h"
30 #include "qemu/cutils.h"
31 #include "qemu/help_option.h"
32 #include "qemu/uuid.h"
33 #include "sysemu/seccomp.h"
34 #include "sysemu/tcg.h"
35
36 #ifdef CONFIG_SDL
37 #if defined(__APPLE__) || defined(main)
38 #include <SDL.h>
39 int qemu_main(int argc, char **argv, char **envp);
40 int main(int argc, char **argv)
41 {
42 return qemu_main(argc, argv, NULL);
43 }
44 #undef main
45 #define main qemu_main
46 #endif
47 #endif /* CONFIG_SDL */
48
49 #ifdef CONFIG_COCOA
50 #undef main
51 #define main qemu_main
52 #endif /* CONFIG_COCOA */
53
54
55 #include "qemu/error-report.h"
56 #include "qemu/sockets.h"
57 #include "hw/hw.h"
58 #include "sysemu/accel.h"
59 #include "hw/usb.h"
60 #include "hw/isa/isa.h"
61 #include "hw/scsi/scsi.h"
62 #include "hw/display/vga.h"
63 #include "hw/bt.h"
64 #include "sysemu/watchdog.h"
65 #include "hw/firmware/smbios.h"
66 #include "hw/acpi/acpi.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 "chardev/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/misc.h"
87 #include "migration/snapshot.h"
88 #include "migration/global_state.h"
89 #include "sysemu/tpm.h"
90 #include "sysemu/dma.h"
91 #include "hw/audio/soundhw.h"
92 #include "audio/audio.h"
93 #include "sysemu/cpus.h"
94 #include "migration/colo.h"
95 #include "migration/postcopy-ram.h"
96 #include "sysemu/kvm.h"
97 #include "sysemu/hax.h"
98 #include "qapi/qobject-input-visitor.h"
99 #include "qemu/option.h"
100 #include "qemu/config-file.h"
101 #include "qemu-options.h"
102 #include "qemu/main-loop.h"
103 #ifdef CONFIG_VIRTFS
104 #include "fsdev/qemu-fsdev.h"
105 #endif
106 #include "sysemu/qtest.h"
107
108 #include "disas/disas.h"
109
110 #include "trace-root.h"
111 #include "trace/control.h"
112 #include "qemu/queue.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 "qapi/clone-visitor.h"
119 #include "qom/object_interfaces.h"
120 #include "hw/semihosting/semihost.h"
121 #include "crypto/init.h"
122 #include "sysemu/replay.h"
123 #include "qapi/qapi-events-run-state.h"
124 #include "qapi/qapi-visit-block-core.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-run-state.h"
128 #include "qapi/qapi-commands-ui.h"
129 #include "qapi/qmp/qerror.h"
130 #include "sysemu/iothread.h"
131 #include "qemu/guest-random.h"
132
133 #define MAX_VIRTIO_CONSOLES 1
134
135 static const char *data_dir[16];
136 static int data_dir_idx;
137 const char *bios_name = NULL;
138 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
139 int display_opengl;
140 const char* keyboard_layout = NULL;
141 ram_addr_t ram_size;
142 const char *mem_path = NULL;
143 int mem_prealloc = 0; /* force preallocation of physical target memory */
144 bool enable_mlock = false;
145 bool enable_cpu_pm = false;
146 int nb_nics;
147 NICInfo nd_table[MAX_NICS];
148 int autostart;
149 static enum {
150 RTC_BASE_UTC,
151 RTC_BASE_LOCALTIME,
152 RTC_BASE_DATETIME,
153 } rtc_base_type = RTC_BASE_UTC;
154 static time_t rtc_ref_start_datetime;
155 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
156 static int rtc_host_datetime_offset = -1; /* valid & used only with
157 RTC_BASE_DATETIME */
158 QEMUClockType rtc_clock;
159 int vga_interface_type = VGA_NONE;
160 static DisplayOptions dpy;
161 static int num_serial_hds;
162 static Chardev **serial_hds;
163 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
164 int win2k_install_hack = 0;
165 int singlestep = 0;
166 int smp_cpus;
167 unsigned int max_cpus;
168 int smp_cores = 1;
169 int smp_threads = 1;
170 int acpi_enabled = 1;
171 int no_hpet = 0;
172 int fd_bootchk = 1;
173 static int no_reboot;
174 int no_shutdown = 0;
175 int cursor_hide = 1;
176 int graphic_rotate = 0;
177 const char *watchdog;
178 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
179 int nb_option_roms;
180 int old_param = 0;
181 const char *qemu_name;
182 int alt_grab = 0;
183 int ctrl_grab = 0;
184 unsigned int nb_prom_envs = 0;
185 const char *prom_envs[MAX_PROM_ENVS];
186 int boot_menu;
187 bool boot_strict;
188 uint8_t *boot_splash_filedata;
189 int only_migratable; /* turn it off unless user states otherwise */
190 bool wakeup_suspend_enabled;
191
192 int icount_align_option;
193
194 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
195 * little-endian "wire format" described in the SMBIOS 2.6 specification.
196 */
197 QemuUUID qemu_uuid;
198 bool qemu_uuid_set;
199
200 static NotifierList exit_notifiers =
201 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
202
203 static NotifierList machine_init_done_notifiers =
204 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
205
206 bool xen_allowed;
207 uint32_t xen_domid;
208 enum xen_mode xen_mode = XEN_EMULATE;
209 bool xen_domid_restrict;
210
211 static int has_defaults = 1;
212 static int default_serial = 1;
213 static int default_parallel = 1;
214 static int default_monitor = 1;
215 static int default_floppy = 1;
216 static int default_cdrom = 1;
217 static int default_sdcard = 1;
218 static int default_vga = 1;
219 static int default_net = 1;
220
221 static struct {
222 const char *driver;
223 int *flag;
224 } default_list[] = {
225 { .driver = "isa-serial", .flag = &default_serial },
226 { .driver = "isa-parallel", .flag = &default_parallel },
227 { .driver = "isa-fdc", .flag = &default_floppy },
228 { .driver = "floppy", .flag = &default_floppy },
229 { .driver = "ide-cd", .flag = &default_cdrom },
230 { .driver = "ide-hd", .flag = &default_cdrom },
231 { .driver = "ide-drive", .flag = &default_cdrom },
232 { .driver = "scsi-cd", .flag = &default_cdrom },
233 { .driver = "scsi-hd", .flag = &default_cdrom },
234 { .driver = "VGA", .flag = &default_vga },
235 { .driver = "isa-vga", .flag = &default_vga },
236 { .driver = "cirrus-vga", .flag = &default_vga },
237 { .driver = "isa-cirrus-vga", .flag = &default_vga },
238 { .driver = "vmware-svga", .flag = &default_vga },
239 { .driver = "qxl-vga", .flag = &default_vga },
240 { .driver = "virtio-vga", .flag = &default_vga },
241 { .driver = "ati-vga", .flag = &default_vga },
242 { .driver = "vhost-user-vga", .flag = &default_vga },
243 };
244
245 static QemuOptsList qemu_rtc_opts = {
246 .name = "rtc",
247 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
248 .merge_lists = true,
249 .desc = {
250 {
251 .name = "base",
252 .type = QEMU_OPT_STRING,
253 },{
254 .name = "clock",
255 .type = QEMU_OPT_STRING,
256 },{
257 .name = "driftfix",
258 .type = QEMU_OPT_STRING,
259 },
260 { /* end of list */ }
261 },
262 };
263
264 static QemuOptsList qemu_option_rom_opts = {
265 .name = "option-rom",
266 .implied_opt_name = "romfile",
267 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
268 .desc = {
269 {
270 .name = "bootindex",
271 .type = QEMU_OPT_NUMBER,
272 }, {
273 .name = "romfile",
274 .type = QEMU_OPT_STRING,
275 },
276 { /* end of list */ }
277 },
278 };
279
280 static QemuOptsList qemu_machine_opts = {
281 .name = "machine",
282 .implied_opt_name = "type",
283 .merge_lists = true,
284 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
285 .desc = {
286 /*
287 * no elements => accept any
288 * sanity checking will happen later
289 * when setting machine properties
290 */
291 { }
292 },
293 };
294
295 static QemuOptsList qemu_accel_opts = {
296 .name = "accel",
297 .implied_opt_name = "accel",
298 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
299 .merge_lists = true,
300 .desc = {
301 {
302 .name = "accel",
303 .type = QEMU_OPT_STRING,
304 .help = "Select the type of accelerator",
305 },
306 {
307 .name = "thread",
308 .type = QEMU_OPT_STRING,
309 .help = "Enable/disable multi-threaded TCG",
310 },
311 { /* end of list */ }
312 },
313 };
314
315 static QemuOptsList qemu_boot_opts = {
316 .name = "boot-opts",
317 .implied_opt_name = "order",
318 .merge_lists = true,
319 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
320 .desc = {
321 {
322 .name = "order",
323 .type = QEMU_OPT_STRING,
324 }, {
325 .name = "once",
326 .type = QEMU_OPT_STRING,
327 }, {
328 .name = "menu",
329 .type = QEMU_OPT_BOOL,
330 }, {
331 .name = "splash",
332 .type = QEMU_OPT_STRING,
333 }, {
334 .name = "splash-time",
335 .type = QEMU_OPT_NUMBER,
336 }, {
337 .name = "reboot-timeout",
338 .type = QEMU_OPT_NUMBER,
339 }, {
340 .name = "strict",
341 .type = QEMU_OPT_BOOL,
342 },
343 { /*End of list */ }
344 },
345 };
346
347 static QemuOptsList qemu_add_fd_opts = {
348 .name = "add-fd",
349 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
350 .desc = {
351 {
352 .name = "fd",
353 .type = QEMU_OPT_NUMBER,
354 .help = "file descriptor of which a duplicate is added to fd set",
355 },{
356 .name = "set",
357 .type = QEMU_OPT_NUMBER,
358 .help = "ID of the fd set to add fd to",
359 },{
360 .name = "opaque",
361 .type = QEMU_OPT_STRING,
362 .help = "free-form string used to describe fd",
363 },
364 { /* end of list */ }
365 },
366 };
367
368 static QemuOptsList qemu_object_opts = {
369 .name = "object",
370 .implied_opt_name = "qom-type",
371 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
372 .desc = {
373 { }
374 },
375 };
376
377 static QemuOptsList qemu_tpmdev_opts = {
378 .name = "tpmdev",
379 .implied_opt_name = "type",
380 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
381 .desc = {
382 /* options are defined in the TPM backends */
383 { /* end of list */ }
384 },
385 };
386
387 static QemuOptsList qemu_realtime_opts = {
388 .name = "realtime",
389 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
390 .desc = {
391 {
392 .name = "mlock",
393 .type = QEMU_OPT_BOOL,
394 },
395 { /* end of list */ }
396 },
397 };
398
399 static QemuOptsList qemu_overcommit_opts = {
400 .name = "overcommit",
401 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
402 .desc = {
403 {
404 .name = "mem-lock",
405 .type = QEMU_OPT_BOOL,
406 },
407 {
408 .name = "cpu-pm",
409 .type = QEMU_OPT_BOOL,
410 },
411 { /* end of list */ }
412 },
413 };
414
415 static QemuOptsList qemu_msg_opts = {
416 .name = "msg",
417 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
418 .desc = {
419 {
420 .name = "timestamp",
421 .type = QEMU_OPT_BOOL,
422 },
423 { /* end of list */ }
424 },
425 };
426
427 static QemuOptsList qemu_name_opts = {
428 .name = "name",
429 .implied_opt_name = "guest",
430 .merge_lists = true,
431 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
432 .desc = {
433 {
434 .name = "guest",
435 .type = QEMU_OPT_STRING,
436 .help = "Sets the name of the guest.\n"
437 "This name will be displayed in the SDL window caption.\n"
438 "The name will also be used for the VNC server",
439 }, {
440 .name = "process",
441 .type = QEMU_OPT_STRING,
442 .help = "Sets the name of the QEMU process, as shown in top etc",
443 }, {
444 .name = "debug-threads",
445 .type = QEMU_OPT_BOOL,
446 .help = "When enabled, name the individual threads; defaults off.\n"
447 "NOTE: The thread names are for debugging and not a\n"
448 "stable API.",
449 },
450 { /* End of list */ }
451 },
452 };
453
454 static QemuOptsList qemu_mem_opts = {
455 .name = "memory",
456 .implied_opt_name = "size",
457 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
458 .merge_lists = true,
459 .desc = {
460 {
461 .name = "size",
462 .type = QEMU_OPT_SIZE,
463 },
464 {
465 .name = "slots",
466 .type = QEMU_OPT_NUMBER,
467 },
468 {
469 .name = "maxmem",
470 .type = QEMU_OPT_SIZE,
471 },
472 { /* end of list */ }
473 },
474 };
475
476 static QemuOptsList qemu_icount_opts = {
477 .name = "icount",
478 .implied_opt_name = "shift",
479 .merge_lists = true,
480 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
481 .desc = {
482 {
483 .name = "shift",
484 .type = QEMU_OPT_STRING,
485 }, {
486 .name = "align",
487 .type = QEMU_OPT_BOOL,
488 }, {
489 .name = "sleep",
490 .type = QEMU_OPT_BOOL,
491 }, {
492 .name = "rr",
493 .type = QEMU_OPT_STRING,
494 }, {
495 .name = "rrfile",
496 .type = QEMU_OPT_STRING,
497 }, {
498 .name = "rrsnapshot",
499 .type = QEMU_OPT_STRING,
500 },
501 { /* end of list */ }
502 },
503 };
504
505 static QemuOptsList qemu_fw_cfg_opts = {
506 .name = "fw_cfg",
507 .implied_opt_name = "name",
508 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
509 .desc = {
510 {
511 .name = "name",
512 .type = QEMU_OPT_STRING,
513 .help = "Sets the fw_cfg name of the blob to be inserted",
514 }, {
515 .name = "file",
516 .type = QEMU_OPT_STRING,
517 .help = "Sets the name of the file from which "
518 "the fw_cfg blob will be loaded",
519 }, {
520 .name = "string",
521 .type = QEMU_OPT_STRING,
522 .help = "Sets content of the blob to be inserted from a string",
523 },
524 { /* end of list */ }
525 },
526 };
527
528 /**
529 * Get machine options
530 *
531 * Returns: machine options (never null).
532 */
533 QemuOpts *qemu_get_machine_opts(void)
534 {
535 return qemu_find_opts_singleton("machine");
536 }
537
538 const char *qemu_get_vm_name(void)
539 {
540 return qemu_name;
541 }
542
543 static void res_free(void)
544 {
545 g_free(boot_splash_filedata);
546 boot_splash_filedata = NULL;
547 }
548
549 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
550 {
551 const char *driver = qemu_opt_get(opts, "driver");
552 int i;
553
554 if (!driver)
555 return 0;
556 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
557 if (strcmp(default_list[i].driver, driver) != 0)
558 continue;
559 *(default_list[i].flag) = 0;
560 }
561 return 0;
562 }
563
564 /***********************************************************/
565 /* QEMU state */
566
567 static RunState current_run_state = RUN_STATE_PRECONFIG;
568
569 /* We use RUN_STATE__MAX but any invalid value will do */
570 static RunState vmstop_requested = RUN_STATE__MAX;
571 static QemuMutex vmstop_lock;
572
573 typedef struct {
574 RunState from;
575 RunState to;
576 } RunStateTransition;
577
578 static const RunStateTransition runstate_transitions_def[] = {
579 /* from -> to */
580 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
581 /* Early switch to inmigrate state to allow -incoming CLI option work
582 * as it used to. TODO: delay actual switching to inmigrate state to
583 * the point after machine is built and remove this hack.
584 */
585 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
586
587 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
588 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
589 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
590
591 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
592 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
593 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
594 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
595 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
596 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
597 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
598 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
599 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
600 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
601 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
602 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
603
604 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
605 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
606 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
607
608 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
609 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
610 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
611
612 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
613 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
614 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
615 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
616 { RUN_STATE_PAUSED, RUN_STATE_COLO},
617
618 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
619 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
620 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
621
622 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
623 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
624 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
625
626 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
627 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
628 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
629 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
630 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
631
632 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
633 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
634
635 { RUN_STATE_COLO, RUN_STATE_RUNNING },
636
637 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
638 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
639 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
640 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
641 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
642 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
643 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
644 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
645 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
646 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
647 { RUN_STATE_RUNNING, RUN_STATE_COLO},
648
649 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
650
651 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
652 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
653 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
654
655 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
656 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
657 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
658 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
659 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
660 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
661
662 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
663 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
664 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
665 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
666
667 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
668 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
669 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
670
671 { RUN_STATE__MAX, RUN_STATE__MAX },
672 };
673
674 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
675
676 bool runstate_check(RunState state)
677 {
678 return current_run_state == state;
679 }
680
681 bool runstate_store(char *str, size_t size)
682 {
683 const char *state = RunState_str(current_run_state);
684 size_t len = strlen(state) + 1;
685
686 if (len > size) {
687 return false;
688 }
689 memcpy(str, state, len);
690 return true;
691 }
692
693 static void runstate_init(void)
694 {
695 const RunStateTransition *p;
696
697 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
698 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
699 runstate_valid_transitions[p->from][p->to] = true;
700 }
701
702 qemu_mutex_init(&vmstop_lock);
703 }
704
705 /* This function will abort() on invalid state transitions */
706 void runstate_set(RunState new_state)
707 {
708 assert(new_state < RUN_STATE__MAX);
709
710 trace_runstate_set(current_run_state, RunState_str(current_run_state),
711 new_state, RunState_str(new_state));
712
713 if (current_run_state == new_state) {
714 return;
715 }
716
717 if (!runstate_valid_transitions[current_run_state][new_state]) {
718 error_report("invalid runstate transition: '%s' -> '%s'",
719 RunState_str(current_run_state),
720 RunState_str(new_state));
721 abort();
722 }
723
724 current_run_state = new_state;
725 }
726
727 int runstate_is_running(void)
728 {
729 return runstate_check(RUN_STATE_RUNNING);
730 }
731
732 bool runstate_needs_reset(void)
733 {
734 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
735 runstate_check(RUN_STATE_SHUTDOWN);
736 }
737
738 StatusInfo *qmp_query_status(Error **errp)
739 {
740 StatusInfo *info = g_malloc0(sizeof(*info));
741
742 info->running = runstate_is_running();
743 info->singlestep = singlestep;
744 info->status = current_run_state;
745
746 return info;
747 }
748
749 bool qemu_vmstop_requested(RunState *r)
750 {
751 qemu_mutex_lock(&vmstop_lock);
752 *r = vmstop_requested;
753 vmstop_requested = RUN_STATE__MAX;
754 qemu_mutex_unlock(&vmstop_lock);
755 return *r < RUN_STATE__MAX;
756 }
757
758 void qemu_system_vmstop_request_prepare(void)
759 {
760 qemu_mutex_lock(&vmstop_lock);
761 }
762
763 void qemu_system_vmstop_request(RunState state)
764 {
765 vmstop_requested = state;
766 qemu_mutex_unlock(&vmstop_lock);
767 qemu_notify_event();
768 }
769
770 /***********************************************************/
771 /* RTC reference time/date access */
772 static time_t qemu_ref_timedate(QEMUClockType clock)
773 {
774 time_t value = qemu_clock_get_ms(clock) / 1000;
775 switch (clock) {
776 case QEMU_CLOCK_REALTIME:
777 value -= rtc_realtime_clock_offset;
778 /* no break */
779 case QEMU_CLOCK_VIRTUAL:
780 value += rtc_ref_start_datetime;
781 break;
782 case QEMU_CLOCK_HOST:
783 if (rtc_base_type == RTC_BASE_DATETIME) {
784 value -= rtc_host_datetime_offset;
785 }
786 break;
787 default:
788 assert(0);
789 }
790 return value;
791 }
792
793 void qemu_get_timedate(struct tm *tm, int offset)
794 {
795 time_t ti = qemu_ref_timedate(rtc_clock);
796
797 ti += offset;
798
799 switch (rtc_base_type) {
800 case RTC_BASE_DATETIME:
801 case RTC_BASE_UTC:
802 gmtime_r(&ti, tm);
803 break;
804 case RTC_BASE_LOCALTIME:
805 localtime_r(&ti, tm);
806 break;
807 }
808 }
809
810 int qemu_timedate_diff(struct tm *tm)
811 {
812 time_t seconds;
813
814 switch (rtc_base_type) {
815 case RTC_BASE_DATETIME:
816 case RTC_BASE_UTC:
817 seconds = mktimegm(tm);
818 break;
819 case RTC_BASE_LOCALTIME:
820 {
821 struct tm tmp = *tm;
822 tmp.tm_isdst = -1; /* use timezone to figure it out */
823 seconds = mktime(&tmp);
824 break;
825 }
826 default:
827 abort();
828 }
829
830 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
831 }
832
833 static void configure_rtc_base_datetime(const char *startdate)
834 {
835 time_t rtc_start_datetime;
836 struct tm tm;
837
838 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
839 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
840 /* OK */
841 } else if (sscanf(startdate, "%d-%d-%d",
842 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
843 tm.tm_hour = 0;
844 tm.tm_min = 0;
845 tm.tm_sec = 0;
846 } else {
847 goto date_fail;
848 }
849 tm.tm_year -= 1900;
850 tm.tm_mon--;
851 rtc_start_datetime = mktimegm(&tm);
852 if (rtc_start_datetime == -1) {
853 date_fail:
854 error_report("invalid datetime format");
855 error_printf("valid formats: "
856 "'2006-06-17T16:01:21' or '2006-06-17'\n");
857 exit(1);
858 }
859 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
860 rtc_ref_start_datetime = rtc_start_datetime;
861 }
862
863 static void configure_rtc(QemuOpts *opts)
864 {
865 const char *value;
866
867 /* Set defaults */
868 rtc_clock = QEMU_CLOCK_HOST;
869 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
870 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
871
872 value = qemu_opt_get(opts, "base");
873 if (value) {
874 if (!strcmp(value, "utc")) {
875 rtc_base_type = RTC_BASE_UTC;
876 } else if (!strcmp(value, "localtime")) {
877 Error *blocker = NULL;
878 rtc_base_type = RTC_BASE_LOCALTIME;
879 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
880 "-rtc base=localtime");
881 replay_add_blocker(blocker);
882 } else {
883 rtc_base_type = RTC_BASE_DATETIME;
884 configure_rtc_base_datetime(value);
885 }
886 }
887 value = qemu_opt_get(opts, "clock");
888 if (value) {
889 if (!strcmp(value, "host")) {
890 rtc_clock = QEMU_CLOCK_HOST;
891 } else if (!strcmp(value, "rt")) {
892 rtc_clock = QEMU_CLOCK_REALTIME;
893 } else if (!strcmp(value, "vm")) {
894 rtc_clock = QEMU_CLOCK_VIRTUAL;
895 } else {
896 error_report("invalid option value '%s'", value);
897 exit(1);
898 }
899 }
900 value = qemu_opt_get(opts, "driftfix");
901 if (value) {
902 if (!strcmp(value, "slew")) {
903 static GlobalProperty slew_lost_ticks = {
904 .driver = "mc146818rtc",
905 .property = "lost_tick_policy",
906 .value = "slew",
907 };
908
909 qdev_prop_register_global(&slew_lost_ticks);
910 } else if (!strcmp(value, "none")) {
911 /* discard is default */
912 } else {
913 error_report("invalid option value '%s'", value);
914 exit(1);
915 }
916 }
917 }
918
919 /***********************************************************/
920 /* Bluetooth support */
921 static int nb_hcis;
922 static int cur_hci;
923 static struct HCIInfo *hci_table[MAX_NICS];
924
925 struct HCIInfo *qemu_next_hci(void)
926 {
927 if (cur_hci == nb_hcis)
928 return &null_hci;
929
930 return hci_table[cur_hci++];
931 }
932
933 static int bt_hci_parse(const char *str)
934 {
935 struct HCIInfo *hci;
936 bdaddr_t bdaddr;
937
938 if (nb_hcis >= MAX_NICS) {
939 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
940 return -1;
941 }
942
943 hci = hci_init(str);
944 if (!hci)
945 return -1;
946
947 bdaddr.b[0] = 0x52;
948 bdaddr.b[1] = 0x54;
949 bdaddr.b[2] = 0x00;
950 bdaddr.b[3] = 0x12;
951 bdaddr.b[4] = 0x34;
952 bdaddr.b[5] = 0x56 + nb_hcis;
953 hci->bdaddr_set(hci, bdaddr.b);
954
955 hci_table[nb_hcis++] = hci;
956
957 return 0;
958 }
959
960 static void bt_vhci_add(int vlan_id)
961 {
962 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
963
964 if (!vlan->slave)
965 warn_report("adding a VHCI to an empty scatternet %i",
966 vlan_id);
967
968 bt_vhci_init(bt_new_hci(vlan));
969 }
970
971 static struct bt_device_s *bt_device_add(const char *opt)
972 {
973 struct bt_scatternet_s *vlan;
974 int vlan_id = 0;
975 char *endp = strstr(opt, ",vlan=");
976 int len = (endp ? endp - opt : strlen(opt)) + 1;
977 char devname[10];
978
979 pstrcpy(devname, MIN(sizeof(devname), len), opt);
980
981 if (endp) {
982 vlan_id = strtol(endp + 6, &endp, 0);
983 if (*endp) {
984 error_report("unrecognised bluetooth vlan Id");
985 return 0;
986 }
987 }
988
989 vlan = qemu_find_bt_vlan(vlan_id);
990
991 if (!vlan->slave)
992 warn_report("adding a slave device to an empty scatternet %i",
993 vlan_id);
994
995 if (!strcmp(devname, "keyboard"))
996 return bt_keyboard_init(vlan);
997
998 error_report("unsupported bluetooth device '%s'", devname);
999 return 0;
1000 }
1001
1002 static int bt_parse(const char *opt)
1003 {
1004 const char *endp, *p;
1005 int vlan;
1006
1007 if (strstart(opt, "hci", &endp)) {
1008 if (!*endp || *endp == ',') {
1009 if (*endp)
1010 if (!strstart(endp, ",vlan=", 0))
1011 opt = endp + 1;
1012
1013 return bt_hci_parse(opt);
1014 }
1015 } else if (strstart(opt, "vhci", &endp)) {
1016 if (!*endp || *endp == ',') {
1017 if (*endp) {
1018 if (strstart(endp, ",vlan=", &p)) {
1019 vlan = strtol(p, (char **) &endp, 0);
1020 if (*endp) {
1021 error_report("bad scatternet '%s'", p);
1022 return 1;
1023 }
1024 } else {
1025 error_report("bad parameter '%s'", endp + 1);
1026 return 1;
1027 }
1028 } else
1029 vlan = 0;
1030
1031 bt_vhci_add(vlan);
1032 return 0;
1033 }
1034 } else if (strstart(opt, "device:", &endp))
1035 return !bt_device_add(endp);
1036
1037 error_report("bad bluetooth parameter '%s'", opt);
1038 return 1;
1039 }
1040
1041 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1042 {
1043 const char *proc_name;
1044
1045 if (qemu_opt_get(opts, "debug-threads")) {
1046 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1047 }
1048 qemu_name = qemu_opt_get(opts, "guest");
1049
1050 proc_name = qemu_opt_get(opts, "process");
1051 if (proc_name) {
1052 os_set_proc_name(proc_name);
1053 }
1054
1055 return 0;
1056 }
1057
1058 bool defaults_enabled(void)
1059 {
1060 return has_defaults;
1061 }
1062
1063 #ifndef _WIN32
1064 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1065 {
1066 int fd, dupfd, flags;
1067 int64_t fdset_id;
1068 const char *fd_opaque = NULL;
1069 AddfdInfo *fdinfo;
1070
1071 fd = qemu_opt_get_number(opts, "fd", -1);
1072 fdset_id = qemu_opt_get_number(opts, "set", -1);
1073 fd_opaque = qemu_opt_get(opts, "opaque");
1074
1075 if (fd < 0) {
1076 error_setg(errp, "fd option is required and must be non-negative");
1077 return -1;
1078 }
1079
1080 if (fd <= STDERR_FILENO) {
1081 error_setg(errp, "fd cannot be a standard I/O stream");
1082 return -1;
1083 }
1084
1085 /*
1086 * All fds inherited across exec() necessarily have FD_CLOEXEC
1087 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1088 */
1089 flags = fcntl(fd, F_GETFD);
1090 if (flags == -1 || (flags & FD_CLOEXEC)) {
1091 error_setg(errp, "fd is not valid or already in use");
1092 return -1;
1093 }
1094
1095 if (fdset_id < 0) {
1096 error_setg(errp, "set option is required and must be non-negative");
1097 return -1;
1098 }
1099
1100 #ifdef F_DUPFD_CLOEXEC
1101 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1102 #else
1103 dupfd = dup(fd);
1104 if (dupfd != -1) {
1105 qemu_set_cloexec(dupfd);
1106 }
1107 #endif
1108 if (dupfd == -1) {
1109 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1110 return -1;
1111 }
1112
1113 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1114 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1115 &error_abort);
1116 g_free(fdinfo);
1117
1118 return 0;
1119 }
1120
1121 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1122 {
1123 int fd;
1124
1125 fd = qemu_opt_get_number(opts, "fd", -1);
1126 close(fd);
1127
1128 return 0;
1129 }
1130 #endif
1131
1132 /***********************************************************/
1133 /* QEMU Block devices */
1134
1135 #define HD_OPTS "media=disk"
1136 #define CDROM_OPTS "media=cdrom"
1137 #define FD_OPTS ""
1138 #define PFLASH_OPTS ""
1139 #define MTD_OPTS ""
1140 #define SD_OPTS ""
1141
1142 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1143 {
1144 BlockInterfaceType *block_default_type = opaque;
1145
1146 return drive_new(opts, *block_default_type, errp) == NULL;
1147 }
1148
1149 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1150 {
1151 if (qemu_opt_get(opts, "snapshot") == NULL) {
1152 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1153 }
1154 return 0;
1155 }
1156
1157 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1158 int index, const char *optstr)
1159 {
1160 QemuOpts *opts;
1161 DriveInfo *dinfo;
1162
1163 if (!enable || drive_get_by_index(type, index)) {
1164 return;
1165 }
1166
1167 opts = drive_add(type, index, NULL, optstr);
1168 if (snapshot) {
1169 drive_enable_snapshot(NULL, opts, NULL);
1170 }
1171
1172 dinfo = drive_new(opts, type, &error_abort);
1173 dinfo->is_default = true;
1174
1175 }
1176
1177 typedef struct BlockdevOptionsQueueEntry {
1178 BlockdevOptions *bdo;
1179 Location loc;
1180 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1181 } BlockdevOptionsQueueEntry;
1182
1183 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1184
1185 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1186 MachineClass *machine_class, int snapshot)
1187 {
1188 /*
1189 * If the currently selected machine wishes to override the
1190 * units-per-bus property of its default HBA interface type, do so
1191 * now.
1192 */
1193 if (machine_class->units_per_default_bus) {
1194 override_max_devs(machine_class->block_default_type,
1195 machine_class->units_per_default_bus);
1196 }
1197
1198 /* open the virtual block devices */
1199 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1200 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1201
1202 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1203 loc_push_restore(&bdo->loc);
1204 qmp_blockdev_add(bdo->bdo, &error_fatal);
1205 loc_pop(&bdo->loc);
1206 qapi_free_BlockdevOptions(bdo->bdo);
1207 g_free(bdo);
1208 }
1209 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1210 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1211 NULL, NULL);
1212 }
1213 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1214 &machine_class->block_default_type, &error_fatal)) {
1215 /* We printed help */
1216 exit(0);
1217 }
1218
1219 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1220 CDROM_OPTS);
1221 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1222 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1223
1224 }
1225
1226 static QemuOptsList qemu_smp_opts = {
1227 .name = "smp-opts",
1228 .implied_opt_name = "cpus",
1229 .merge_lists = true,
1230 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1231 .desc = {
1232 {
1233 .name = "cpus",
1234 .type = QEMU_OPT_NUMBER,
1235 }, {
1236 .name = "sockets",
1237 .type = QEMU_OPT_NUMBER,
1238 }, {
1239 .name = "cores",
1240 .type = QEMU_OPT_NUMBER,
1241 }, {
1242 .name = "threads",
1243 .type = QEMU_OPT_NUMBER,
1244 }, {
1245 .name = "maxcpus",
1246 .type = QEMU_OPT_NUMBER,
1247 },
1248 { /*End of list */ }
1249 },
1250 };
1251
1252 static void smp_parse(QemuOpts *opts)
1253 {
1254 if (opts) {
1255 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1256 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1257 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1258 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1259
1260 /* compute missing values, prefer sockets over cores over threads */
1261 if (cpus == 0 || sockets == 0) {
1262 cores = cores > 0 ? cores : 1;
1263 threads = threads > 0 ? threads : 1;
1264 if (cpus == 0) {
1265 sockets = sockets > 0 ? sockets : 1;
1266 cpus = cores * threads * sockets;
1267 } else {
1268 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1269 sockets = max_cpus / (cores * threads);
1270 }
1271 } else if (cores == 0) {
1272 threads = threads > 0 ? threads : 1;
1273 cores = cpus / (sockets * threads);
1274 cores = cores > 0 ? cores : 1;
1275 } else if (threads == 0) {
1276 threads = cpus / (cores * sockets);
1277 threads = threads > 0 ? threads : 1;
1278 } else if (sockets * cores * threads < cpus) {
1279 error_report("cpu topology: "
1280 "sockets (%u) * cores (%u) * threads (%u) < "
1281 "smp_cpus (%u)",
1282 sockets, cores, threads, cpus);
1283 exit(1);
1284 }
1285
1286 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1287
1288 if (max_cpus < cpus) {
1289 error_report("maxcpus must be equal to or greater than smp");
1290 exit(1);
1291 }
1292
1293 if (sockets * cores * threads > max_cpus) {
1294 error_report("cpu topology: "
1295 "sockets (%u) * cores (%u) * threads (%u) > "
1296 "maxcpus (%u)",
1297 sockets, cores, threads, max_cpus);
1298 exit(1);
1299 }
1300
1301 if (sockets * cores * threads != max_cpus) {
1302 warn_report("Invalid CPU topology deprecated: "
1303 "sockets (%u) * cores (%u) * threads (%u) "
1304 "!= maxcpus (%u)",
1305 sockets, cores, threads, max_cpus);
1306 }
1307
1308 smp_cpus = cpus;
1309 smp_cores = cores;
1310 smp_threads = threads;
1311 }
1312
1313 if (smp_cpus > 1) {
1314 Error *blocker = NULL;
1315 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1316 replay_add_blocker(blocker);
1317 }
1318 }
1319
1320 static void realtime_init(void)
1321 {
1322 if (enable_mlock) {
1323 if (os_mlock() < 0) {
1324 error_report("locking memory failed");
1325 exit(1);
1326 }
1327 }
1328 }
1329
1330
1331 static void configure_msg(QemuOpts *opts)
1332 {
1333 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1334 }
1335
1336
1337 /* Now we still need this for compatibility with XEN. */
1338 bool has_igd_gfx_passthru;
1339 static void igd_gfx_passthru(void)
1340 {
1341 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1342 }
1343
1344 /***********************************************************/
1345 /* USB devices */
1346
1347 static int usb_device_add(const char *devname)
1348 {
1349 USBDevice *dev = NULL;
1350
1351 if (!machine_usb(current_machine)) {
1352 return -1;
1353 }
1354
1355 dev = usbdevice_create(devname);
1356 if (!dev)
1357 return -1;
1358
1359 return 0;
1360 }
1361
1362 static int usb_parse(const char *cmdline)
1363 {
1364 int r;
1365 r = usb_device_add(cmdline);
1366 if (r < 0) {
1367 error_report("could not add USB device '%s'", cmdline);
1368 }
1369 return r;
1370 }
1371
1372 /***********************************************************/
1373 /* machine registration */
1374
1375 MachineState *current_machine;
1376
1377 static MachineClass *find_machine(const char *name, GSList *machines)
1378 {
1379 GSList *el;
1380
1381 for (el = machines; el; el = el->next) {
1382 MachineClass *mc = el->data;
1383
1384 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
1385 return mc;
1386 }
1387 }
1388
1389 return NULL;
1390 }
1391
1392 static MachineClass *find_default_machine(GSList *machines)
1393 {
1394 GSList *el;
1395
1396 for (el = machines; el; el = el->next) {
1397 MachineClass *mc = el->data;
1398
1399 if (mc->is_default) {
1400 return mc;
1401 }
1402 }
1403
1404 return NULL;
1405 }
1406
1407 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1408 {
1409 ObjectProperty *prop;
1410 ObjectPropertyIterator iter;
1411
1412 if (!qemu_opt_has_help_opt(opts)) {
1413 return 0;
1414 }
1415
1416 object_property_iter_init(&iter, OBJECT(machine));
1417 while ((prop = object_property_iter_next(&iter))) {
1418 if (!prop->set) {
1419 continue;
1420 }
1421
1422 printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1423 prop->name, prop->type);
1424 if (prop->description) {
1425 printf(" (%s)\n", prop->description);
1426 } else {
1427 printf("\n");
1428 }
1429 }
1430
1431 return 1;
1432 }
1433
1434 struct vm_change_state_entry {
1435 VMChangeStateHandler *cb;
1436 void *opaque;
1437 QLIST_ENTRY (vm_change_state_entry) entries;
1438 };
1439
1440 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1441
1442 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1443 void *opaque)
1444 {
1445 VMChangeStateEntry *e;
1446
1447 e = g_malloc0(sizeof (*e));
1448
1449 e->cb = cb;
1450 e->opaque = opaque;
1451 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1452 return e;
1453 }
1454
1455 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1456 {
1457 QLIST_REMOVE (e, entries);
1458 g_free (e);
1459 }
1460
1461 void vm_state_notify(int running, RunState state)
1462 {
1463 VMChangeStateEntry *e, *next;
1464
1465 trace_vm_state_notify(running, state, RunState_str(state));
1466
1467 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1468 e->cb(e->opaque, running, state);
1469 }
1470 }
1471
1472 static ShutdownCause reset_requested;
1473 static ShutdownCause shutdown_requested;
1474 static int shutdown_signal;
1475 static pid_t shutdown_pid;
1476 static int powerdown_requested;
1477 static int debug_requested;
1478 static int suspend_requested;
1479 static bool preconfig_exit_requested = true;
1480 static WakeupReason wakeup_reason;
1481 static NotifierList powerdown_notifiers =
1482 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1483 static NotifierList suspend_notifiers =
1484 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1485 static NotifierList wakeup_notifiers =
1486 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1487 static NotifierList shutdown_notifiers =
1488 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1489 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1490
1491 ShutdownCause qemu_shutdown_requested_get(void)
1492 {
1493 return shutdown_requested;
1494 }
1495
1496 ShutdownCause qemu_reset_requested_get(void)
1497 {
1498 return reset_requested;
1499 }
1500
1501 static int qemu_shutdown_requested(void)
1502 {
1503 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1504 }
1505
1506 static void qemu_kill_report(void)
1507 {
1508 if (!qtest_driver() && shutdown_signal) {
1509 if (shutdown_pid == 0) {
1510 /* This happens for eg ^C at the terminal, so it's worth
1511 * avoiding printing an odd message in that case.
1512 */
1513 error_report("terminating on signal %d", shutdown_signal);
1514 } else {
1515 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1516
1517 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1518 shutdown_signal, shutdown_pid,
1519 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1520 g_free(shutdown_cmd);
1521 }
1522 shutdown_signal = 0;
1523 }
1524 }
1525
1526 static ShutdownCause qemu_reset_requested(void)
1527 {
1528 ShutdownCause r = reset_requested;
1529
1530 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1531 reset_requested = SHUTDOWN_CAUSE_NONE;
1532 return r;
1533 }
1534 return SHUTDOWN_CAUSE_NONE;
1535 }
1536
1537 static int qemu_suspend_requested(void)
1538 {
1539 int r = suspend_requested;
1540 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1541 suspend_requested = 0;
1542 return r;
1543 }
1544 return false;
1545 }
1546
1547 static WakeupReason qemu_wakeup_requested(void)
1548 {
1549 return wakeup_reason;
1550 }
1551
1552 static int qemu_powerdown_requested(void)
1553 {
1554 int r = powerdown_requested;
1555 powerdown_requested = 0;
1556 return r;
1557 }
1558
1559 static int qemu_debug_requested(void)
1560 {
1561 int r = debug_requested;
1562 debug_requested = 0;
1563 return r;
1564 }
1565
1566 void qemu_exit_preconfig_request(void)
1567 {
1568 preconfig_exit_requested = true;
1569 }
1570
1571 /*
1572 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1573 */
1574 void qemu_system_reset(ShutdownCause reason)
1575 {
1576 MachineClass *mc;
1577
1578 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1579
1580 cpu_synchronize_all_states();
1581
1582 if (mc && mc->reset) {
1583 mc->reset();
1584 } else {
1585 qemu_devices_reset();
1586 }
1587 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1588 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1589 }
1590 cpu_synchronize_all_post_reset();
1591 }
1592
1593 void qemu_system_guest_panicked(GuestPanicInformation *info)
1594 {
1595 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1596
1597 if (current_cpu) {
1598 current_cpu->crash_occurred = true;
1599 }
1600 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1601 !!info, info);
1602 vm_stop(RUN_STATE_GUEST_PANICKED);
1603 if (!no_shutdown) {
1604 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1605 !!info, info);
1606 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1607 }
1608
1609 if (info) {
1610 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1611 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1612 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1613 info->u.hyper_v.arg1,
1614 info->u.hyper_v.arg2,
1615 info->u.hyper_v.arg3,
1616 info->u.hyper_v.arg4,
1617 info->u.hyper_v.arg5);
1618 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1619 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1620 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1621 info->u.s390.core,
1622 S390CrashReason_str(info->u.s390.reason),
1623 info->u.s390.psw_mask,
1624 info->u.s390.psw_addr);
1625 }
1626 qapi_free_GuestPanicInformation(info);
1627 }
1628 }
1629
1630 void qemu_system_reset_request(ShutdownCause reason)
1631 {
1632 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1633 shutdown_requested = reason;
1634 } else {
1635 reset_requested = reason;
1636 }
1637 cpu_stop_current();
1638 qemu_notify_event();
1639 }
1640
1641 static void qemu_system_suspend(void)
1642 {
1643 pause_all_vcpus();
1644 notifier_list_notify(&suspend_notifiers, NULL);
1645 runstate_set(RUN_STATE_SUSPENDED);
1646 qapi_event_send_suspend();
1647 }
1648
1649 void qemu_system_suspend_request(void)
1650 {
1651 if (runstate_check(RUN_STATE_SUSPENDED)) {
1652 return;
1653 }
1654 suspend_requested = 1;
1655 cpu_stop_current();
1656 qemu_notify_event();
1657 }
1658
1659 void qemu_register_suspend_notifier(Notifier *notifier)
1660 {
1661 notifier_list_add(&suspend_notifiers, notifier);
1662 }
1663
1664 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1665 {
1666 trace_system_wakeup_request(reason);
1667
1668 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1669 error_setg(errp,
1670 "Unable to wake up: guest is not in suspended state");
1671 return;
1672 }
1673 if (!(wakeup_reason_mask & (1 << reason))) {
1674 return;
1675 }
1676 runstate_set(RUN_STATE_RUNNING);
1677 wakeup_reason = reason;
1678 qemu_notify_event();
1679 }
1680
1681 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1682 {
1683 if (enabled) {
1684 wakeup_reason_mask |= (1 << reason);
1685 } else {
1686 wakeup_reason_mask &= ~(1 << reason);
1687 }
1688 }
1689
1690 void qemu_register_wakeup_notifier(Notifier *notifier)
1691 {
1692 notifier_list_add(&wakeup_notifiers, notifier);
1693 }
1694
1695 void qemu_register_wakeup_support(void)
1696 {
1697 wakeup_suspend_enabled = true;
1698 }
1699
1700 bool qemu_wakeup_suspend_enabled(void)
1701 {
1702 return wakeup_suspend_enabled;
1703 }
1704
1705 void qemu_system_killed(int signal, pid_t pid)
1706 {
1707 shutdown_signal = signal;
1708 shutdown_pid = pid;
1709 no_shutdown = 0;
1710
1711 /* Cannot call qemu_system_shutdown_request directly because
1712 * we are in a signal handler.
1713 */
1714 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1715 qemu_notify_event();
1716 }
1717
1718 void qemu_system_shutdown_request(ShutdownCause reason)
1719 {
1720 trace_qemu_system_shutdown_request(reason);
1721 replay_shutdown_request(reason);
1722 shutdown_requested = reason;
1723 qemu_notify_event();
1724 }
1725
1726 static void qemu_system_powerdown(void)
1727 {
1728 qapi_event_send_powerdown();
1729 notifier_list_notify(&powerdown_notifiers, NULL);
1730 }
1731
1732 static void qemu_system_shutdown(ShutdownCause cause)
1733 {
1734 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1735 notifier_list_notify(&shutdown_notifiers, &cause);
1736 }
1737
1738 void qemu_system_powerdown_request(void)
1739 {
1740 trace_qemu_system_powerdown_request();
1741 powerdown_requested = 1;
1742 qemu_notify_event();
1743 }
1744
1745 void qemu_register_powerdown_notifier(Notifier *notifier)
1746 {
1747 notifier_list_add(&powerdown_notifiers, notifier);
1748 }
1749
1750 void qemu_register_shutdown_notifier(Notifier *notifier)
1751 {
1752 notifier_list_add(&shutdown_notifiers, notifier);
1753 }
1754
1755 void qemu_system_debug_request(void)
1756 {
1757 debug_requested = 1;
1758 qemu_notify_event();
1759 }
1760
1761 static bool main_loop_should_exit(void)
1762 {
1763 RunState r;
1764 ShutdownCause request;
1765
1766 if (preconfig_exit_requested) {
1767 if (runstate_check(RUN_STATE_PRECONFIG)) {
1768 runstate_set(RUN_STATE_PRELAUNCH);
1769 }
1770 preconfig_exit_requested = false;
1771 return true;
1772 }
1773 if (qemu_debug_requested()) {
1774 vm_stop(RUN_STATE_DEBUG);
1775 }
1776 if (qemu_suspend_requested()) {
1777 qemu_system_suspend();
1778 }
1779 request = qemu_shutdown_requested();
1780 if (request) {
1781 qemu_kill_report();
1782 qemu_system_shutdown(request);
1783 if (no_shutdown) {
1784 vm_stop(RUN_STATE_SHUTDOWN);
1785 } else {
1786 return true;
1787 }
1788 }
1789 request = qemu_reset_requested();
1790 if (request) {
1791 pause_all_vcpus();
1792 qemu_system_reset(request);
1793 resume_all_vcpus();
1794 if (!runstate_check(RUN_STATE_RUNNING) &&
1795 !runstate_check(RUN_STATE_INMIGRATE)) {
1796 runstate_set(RUN_STATE_PRELAUNCH);
1797 }
1798 }
1799 if (qemu_wakeup_requested()) {
1800 pause_all_vcpus();
1801 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1802 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1803 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1804 resume_all_vcpus();
1805 qapi_event_send_wakeup();
1806 }
1807 if (qemu_powerdown_requested()) {
1808 qemu_system_powerdown();
1809 }
1810 if (qemu_vmstop_requested(&r)) {
1811 vm_stop(r);
1812 }
1813 return false;
1814 }
1815
1816 static void main_loop(void)
1817 {
1818 #ifdef CONFIG_PROFILER
1819 int64_t ti;
1820 #endif
1821 while (!main_loop_should_exit()) {
1822 #ifdef CONFIG_PROFILER
1823 ti = profile_getclock();
1824 #endif
1825 main_loop_wait(false);
1826 #ifdef CONFIG_PROFILER
1827 dev_time += profile_getclock() - ti;
1828 #endif
1829 }
1830 }
1831
1832 static void version(void)
1833 {
1834 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1835 QEMU_COPYRIGHT "\n");
1836 }
1837
1838 static void help(int exitcode)
1839 {
1840 version();
1841 printf("usage: %s [options] [disk_image]\n\n"
1842 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1843 error_get_progname());
1844
1845 #define QEMU_OPTIONS_GENERATE_HELP
1846 #include "qemu-options-wrapper.h"
1847
1848 printf("\nDuring emulation, the following keys are useful:\n"
1849 "ctrl-alt-f toggle full screen\n"
1850 "ctrl-alt-n switch to virtual console 'n'\n"
1851 "ctrl-alt toggle mouse and keyboard grab\n"
1852 "\n"
1853 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1854 "\n"
1855 QEMU_HELP_BOTTOM "\n");
1856
1857 exit(exitcode);
1858 }
1859
1860 #define HAS_ARG 0x0001
1861
1862 typedef struct QEMUOption {
1863 const char *name;
1864 int flags;
1865 int index;
1866 uint32_t arch_mask;
1867 } QEMUOption;
1868
1869 static const QEMUOption qemu_options[] = {
1870 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1871 #define QEMU_OPTIONS_GENERATE_OPTIONS
1872 #include "qemu-options-wrapper.h"
1873 { NULL },
1874 };
1875
1876 typedef struct VGAInterfaceInfo {
1877 const char *opt_name; /* option name */
1878 const char *name; /* human-readable name */
1879 /* Class names indicating that support is available.
1880 * If no class is specified, the interface is always available */
1881 const char *class_names[2];
1882 } VGAInterfaceInfo;
1883
1884 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1885 [VGA_NONE] = {
1886 .opt_name = "none",
1887 .name = "no graphic card",
1888 },
1889 [VGA_STD] = {
1890 .opt_name = "std",
1891 .name = "standard VGA",
1892 .class_names = { "VGA", "isa-vga" },
1893 },
1894 [VGA_CIRRUS] = {
1895 .opt_name = "cirrus",
1896 .name = "Cirrus VGA",
1897 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1898 },
1899 [VGA_VMWARE] = {
1900 .opt_name = "vmware",
1901 .name = "VMWare SVGA",
1902 .class_names = { "vmware-svga" },
1903 },
1904 [VGA_VIRTIO] = {
1905 .opt_name = "virtio",
1906 .name = "Virtio VGA",
1907 .class_names = { "virtio-vga" },
1908 },
1909 [VGA_QXL] = {
1910 .opt_name = "qxl",
1911 .name = "QXL VGA",
1912 .class_names = { "qxl-vga" },
1913 },
1914 [VGA_TCX] = {
1915 .opt_name = "tcx",
1916 .name = "TCX framebuffer",
1917 .class_names = { "SUNW,tcx" },
1918 },
1919 [VGA_CG3] = {
1920 .opt_name = "cg3",
1921 .name = "CG3 framebuffer",
1922 .class_names = { "cgthree" },
1923 },
1924 [VGA_XENFB] = {
1925 .opt_name = "xenfb",
1926 .name = "Xen paravirtualized framebuffer",
1927 },
1928 };
1929
1930 static bool vga_interface_available(VGAInterfaceType t)
1931 {
1932 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1933
1934 assert(t < VGA_TYPE_MAX);
1935 return !ti->class_names[0] ||
1936 object_class_by_name(ti->class_names[0]) ||
1937 object_class_by_name(ti->class_names[1]);
1938 }
1939
1940 static const char *
1941 get_default_vga_model(const MachineClass *machine_class)
1942 {
1943 if (machine_class->default_display) {
1944 return machine_class->default_display;
1945 } else if (vga_interface_available(VGA_CIRRUS)) {
1946 return "cirrus";
1947 } else if (vga_interface_available(VGA_STD)) {
1948 return "std";
1949 }
1950
1951 return NULL;
1952 }
1953
1954 static void select_vgahw(const MachineClass *machine_class, const char *p)
1955 {
1956 const char *opts;
1957 int t;
1958
1959 if (g_str_equal(p, "help")) {
1960 const char *def = get_default_vga_model(machine_class);
1961
1962 for (t = 0; t < VGA_TYPE_MAX; t++) {
1963 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1964
1965 if (vga_interface_available(t) && ti->opt_name) {
1966 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1967 g_str_equal(ti->opt_name, def) ? " (default)" : "");
1968 }
1969 }
1970 exit(0);
1971 }
1972
1973 assert(vga_interface_type == VGA_NONE);
1974 for (t = 0; t < VGA_TYPE_MAX; t++) {
1975 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1976 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1977 if (!vga_interface_available(t)) {
1978 error_report("%s not available", ti->name);
1979 exit(1);
1980 }
1981 vga_interface_type = t;
1982 break;
1983 }
1984 }
1985 if (t == VGA_TYPE_MAX) {
1986 invalid_vga:
1987 error_report("unknown vga type: %s", p);
1988 exit(1);
1989 }
1990 while (*opts) {
1991 const char *nextopt;
1992
1993 if (strstart(opts, ",retrace=", &nextopt)) {
1994 opts = nextopt;
1995 if (strstart(opts, "dumb", &nextopt))
1996 vga_retrace_method = VGA_RETRACE_DUMB;
1997 else if (strstart(opts, "precise", &nextopt))
1998 vga_retrace_method = VGA_RETRACE_PRECISE;
1999 else goto invalid_vga;
2000 } else goto invalid_vga;
2001 opts = nextopt;
2002 }
2003 }
2004
2005 static void parse_display_qapi(const char *optarg)
2006 {
2007 DisplayOptions *opts;
2008 Visitor *v;
2009
2010 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2011
2012 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2013 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2014
2015 qapi_free_DisplayOptions(opts);
2016 visit_free(v);
2017 }
2018
2019 DisplayOptions *qmp_query_display_options(Error **errp)
2020 {
2021 return QAPI_CLONE(DisplayOptions, &dpy);
2022 }
2023
2024 static void parse_display(const char *p)
2025 {
2026 const char *opts;
2027
2028 if (strstart(p, "sdl", &opts)) {
2029 /*
2030 * sdl DisplayType needs hand-crafted parser instead of
2031 * parse_display_qapi() due to some options not in
2032 * DisplayOptions, specifically:
2033 * - frame
2034 * Already deprecated.
2035 * - ctrl_grab + alt_grab
2036 * Not clear yet what happens to them long-term. Should
2037 * replaced by something better or deprecated and dropped.
2038 */
2039 dpy.type = DISPLAY_TYPE_SDL;
2040 while (*opts) {
2041 const char *nextopt;
2042
2043 if (strstart(opts, ",alt_grab=", &nextopt)) {
2044 opts = nextopt;
2045 if (strstart(opts, "on", &nextopt)) {
2046 alt_grab = 1;
2047 } else if (strstart(opts, "off", &nextopt)) {
2048 alt_grab = 0;
2049 } else {
2050 goto invalid_sdl_args;
2051 }
2052 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2053 opts = nextopt;
2054 if (strstart(opts, "on", &nextopt)) {
2055 ctrl_grab = 1;
2056 } else if (strstart(opts, "off", &nextopt)) {
2057 ctrl_grab = 0;
2058 } else {
2059 goto invalid_sdl_args;
2060 }
2061 } else if (strstart(opts, ",window_close=", &nextopt)) {
2062 opts = nextopt;
2063 dpy.has_window_close = true;
2064 if (strstart(opts, "on", &nextopt)) {
2065 dpy.window_close = true;
2066 } else if (strstart(opts, "off", &nextopt)) {
2067 dpy.window_close = false;
2068 } else {
2069 goto invalid_sdl_args;
2070 }
2071 } else if (strstart(opts, ",gl=", &nextopt)) {
2072 opts = nextopt;
2073 dpy.has_gl = true;
2074 if (strstart(opts, "on", &nextopt)) {
2075 dpy.gl = DISPLAYGL_MODE_ON;
2076 } else if (strstart(opts, "core", &nextopt)) {
2077 dpy.gl = DISPLAYGL_MODE_CORE;
2078 } else if (strstart(opts, "es", &nextopt)) {
2079 dpy.gl = DISPLAYGL_MODE_ES;
2080 } else if (strstart(opts, "off", &nextopt)) {
2081 dpy.gl = DISPLAYGL_MODE_OFF;
2082 } else {
2083 goto invalid_sdl_args;
2084 }
2085 } else {
2086 invalid_sdl_args:
2087 error_report("invalid SDL option string");
2088 exit(1);
2089 }
2090 opts = nextopt;
2091 }
2092 } else if (strstart(p, "vnc", &opts)) {
2093 /*
2094 * vnc isn't a (local) DisplayType but a protocol for remote
2095 * display access.
2096 */
2097 if (*opts == '=') {
2098 vnc_parse(opts + 1, &error_fatal);
2099 } else {
2100 error_report("VNC requires a display argument vnc=<display>");
2101 exit(1);
2102 }
2103 } else {
2104 parse_display_qapi(p);
2105 }
2106 }
2107
2108 char *qemu_find_file(int type, const char *name)
2109 {
2110 int i;
2111 const char *subdir;
2112 char *buf;
2113
2114 /* Try the name as a straight path first */
2115 if (access(name, R_OK) == 0) {
2116 trace_load_file(name, name);
2117 return g_strdup(name);
2118 }
2119
2120 switch (type) {
2121 case QEMU_FILE_TYPE_BIOS:
2122 subdir = "";
2123 break;
2124 case QEMU_FILE_TYPE_KEYMAP:
2125 subdir = "keymaps/";
2126 break;
2127 default:
2128 abort();
2129 }
2130
2131 for (i = 0; i < data_dir_idx; i++) {
2132 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2133 if (access(buf, R_OK) == 0) {
2134 trace_load_file(name, buf);
2135 return buf;
2136 }
2137 g_free(buf);
2138 }
2139 return NULL;
2140 }
2141
2142 static void qemu_add_data_dir(const char *path)
2143 {
2144 int i;
2145
2146 if (path == NULL) {
2147 return;
2148 }
2149 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2150 return;
2151 }
2152 for (i = 0; i < data_dir_idx; i++) {
2153 if (strcmp(data_dir[i], path) == 0) {
2154 return; /* duplicate */
2155 }
2156 }
2157 data_dir[data_dir_idx++] = g_strdup(path);
2158 }
2159
2160 static inline bool nonempty_str(const char *str)
2161 {
2162 return str && *str;
2163 }
2164
2165 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2166 {
2167 gchar *buf;
2168 size_t size;
2169 const char *name, *file, *str;
2170 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2171
2172 if (fw_cfg == NULL) {
2173 error_setg(errp, "fw_cfg device not available");
2174 return -1;
2175 }
2176 name = qemu_opt_get(opts, "name");
2177 file = qemu_opt_get(opts, "file");
2178 str = qemu_opt_get(opts, "string");
2179
2180 /* we need name and either a file or the content string */
2181 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2182 error_setg(errp, "invalid argument(s)");
2183 return -1;
2184 }
2185 if (nonempty_str(file) && nonempty_str(str)) {
2186 error_setg(errp, "file and string are mutually exclusive");
2187 return -1;
2188 }
2189 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2190 error_setg(errp, "name too long (max. %d char)",
2191 FW_CFG_MAX_FILE_PATH - 1);
2192 return -1;
2193 }
2194 if (strncmp(name, "opt/", 4) != 0) {
2195 warn_report("externally provided fw_cfg item names "
2196 "should be prefixed with \"opt/\"");
2197 }
2198 if (nonempty_str(str)) {
2199 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2200 buf = g_memdup(str, size);
2201 } else {
2202 GError *err = NULL;
2203 if (!g_file_get_contents(file, &buf, &size, &err)) {
2204 error_setg(errp, "can't load %s: %s", file, err->message);
2205 g_error_free(err);
2206 return -1;
2207 }
2208 }
2209 /* For legacy, keep user files in a specific global order. */
2210 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2211 fw_cfg_add_file(fw_cfg, name, buf, size);
2212 fw_cfg_reset_order_override(fw_cfg);
2213 return 0;
2214 }
2215
2216 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2217 {
2218 return qdev_device_help(opts);
2219 }
2220
2221 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2222 {
2223 DeviceState *dev;
2224
2225 dev = qdev_device_add(opts, errp);
2226 if (!dev) {
2227 return -1;
2228 }
2229 object_unref(OBJECT(dev));
2230 return 0;
2231 }
2232
2233 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2234 {
2235 Error *local_err = NULL;
2236
2237 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2238 if (local_err) {
2239 error_propagate(errp, local_err);
2240 return -1;
2241 }
2242 exit(0);
2243 }
2244 return 0;
2245 }
2246
2247 #ifdef CONFIG_VIRTFS
2248 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2249 {
2250 return qemu_fsdev_add(opts, errp);
2251 }
2252 #endif
2253
2254 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2255 {
2256 Chardev *chr;
2257 bool qmp;
2258 bool pretty = false;
2259 const char *chardev;
2260 const char *mode;
2261
2262 mode = qemu_opt_get(opts, "mode");
2263 if (mode == NULL) {
2264 mode = "readline";
2265 }
2266 if (strcmp(mode, "readline") == 0) {
2267 qmp = false;
2268 } else if (strcmp(mode, "control") == 0) {
2269 qmp = true;
2270 } else {
2271 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2272 return -1;
2273 }
2274
2275 if (!qmp && qemu_opt_get(opts, "pretty")) {
2276 warn_report("'pretty' is deprecated for HMP monitors, it has no effect "
2277 "and will be removed in future versions");
2278 }
2279 if (qemu_opt_get_bool(opts, "pretty", 0)) {
2280 pretty = true;
2281 }
2282
2283 chardev = qemu_opt_get(opts, "chardev");
2284 if (!chardev) {
2285 error_report("chardev is required");
2286 exit(1);
2287 }
2288 chr = qemu_chr_find(chardev);
2289 if (chr == NULL) {
2290 error_setg(errp, "chardev \"%s\" not found", chardev);
2291 return -1;
2292 }
2293
2294 if (qmp) {
2295 monitor_init_qmp(chr, pretty);
2296 } else {
2297 monitor_init_hmp(chr, true);
2298 }
2299 return 0;
2300 }
2301
2302 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2303 {
2304 static int monitor_device_index = 0;
2305 QemuOpts *opts;
2306 const char *p;
2307 char label[32];
2308
2309 if (strstart(optarg, "chardev:", &p)) {
2310 snprintf(label, sizeof(label), "%s", p);
2311 } else {
2312 snprintf(label, sizeof(label), "compat_monitor%d",
2313 monitor_device_index);
2314 opts = qemu_chr_parse_compat(label, optarg, true);
2315 if (!opts) {
2316 error_report("parse error: %s", optarg);
2317 exit(1);
2318 }
2319 }
2320
2321 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2322 qemu_opt_set(opts, "mode", mode, &error_abort);
2323 qemu_opt_set(opts, "chardev", label, &error_abort);
2324 if (!strcmp(mode, "control")) {
2325 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2326 } else {
2327 assert(pretty == false);
2328 }
2329 monitor_device_index++;
2330 }
2331
2332 struct device_config {
2333 enum {
2334 DEV_USB, /* -usbdevice */
2335 DEV_BT, /* -bt */
2336 DEV_SERIAL, /* -serial */
2337 DEV_PARALLEL, /* -parallel */
2338 DEV_DEBUGCON, /* -debugcon */
2339 DEV_GDB, /* -gdb, -s */
2340 DEV_SCLP, /* s390 sclp */
2341 } type;
2342 const char *cmdline;
2343 Location loc;
2344 QTAILQ_ENTRY(device_config) next;
2345 };
2346
2347 static QTAILQ_HEAD(, device_config) device_configs =
2348 QTAILQ_HEAD_INITIALIZER(device_configs);
2349
2350 static void add_device_config(int type, const char *cmdline)
2351 {
2352 struct device_config *conf;
2353
2354 conf = g_malloc0(sizeof(*conf));
2355 conf->type = type;
2356 conf->cmdline = cmdline;
2357 loc_save(&conf->loc);
2358 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2359 }
2360
2361 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2362 {
2363 struct device_config *conf;
2364 int rc;
2365
2366 QTAILQ_FOREACH(conf, &device_configs, next) {
2367 if (conf->type != type)
2368 continue;
2369 loc_push_restore(&conf->loc);
2370 rc = func(conf->cmdline);
2371 loc_pop(&conf->loc);
2372 if (rc) {
2373 return rc;
2374 }
2375 }
2376 return 0;
2377 }
2378
2379 static int serial_parse(const char *devname)
2380 {
2381 int index = num_serial_hds;
2382 char label[32];
2383
2384 if (strcmp(devname, "none") == 0)
2385 return 0;
2386 snprintf(label, sizeof(label), "serial%d", index);
2387 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2388
2389 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2390 if (!serial_hds[index]) {
2391 error_report("could not connect serial device"
2392 " to character backend '%s'", devname);
2393 return -1;
2394 }
2395 num_serial_hds++;
2396 return 0;
2397 }
2398
2399 Chardev *serial_hd(int i)
2400 {
2401 assert(i >= 0);
2402 if (i < num_serial_hds) {
2403 return serial_hds[i];
2404 }
2405 return NULL;
2406 }
2407
2408 int serial_max_hds(void)
2409 {
2410 return num_serial_hds;
2411 }
2412
2413 static int parallel_parse(const char *devname)
2414 {
2415 static int index = 0;
2416 char label[32];
2417
2418 if (strcmp(devname, "none") == 0)
2419 return 0;
2420 if (index == MAX_PARALLEL_PORTS) {
2421 error_report("too many parallel ports");
2422 exit(1);
2423 }
2424 snprintf(label, sizeof(label), "parallel%d", index);
2425 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2426 if (!parallel_hds[index]) {
2427 error_report("could not connect parallel device"
2428 " to character backend '%s'", devname);
2429 return -1;
2430 }
2431 index++;
2432 return 0;
2433 }
2434
2435 static int debugcon_parse(const char *devname)
2436 {
2437 QemuOpts *opts;
2438
2439 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2440 error_report("invalid character backend '%s'", devname);
2441 exit(1);
2442 }
2443 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2444 if (!opts) {
2445 error_report("already have a debugcon device");
2446 exit(1);
2447 }
2448 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2449 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2450 return 0;
2451 }
2452
2453 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2454 {
2455 const MachineClass *mc1 = a, *mc2 = b;
2456 int res;
2457
2458 if (mc1->family == NULL) {
2459 if (mc2->family == NULL) {
2460 /* Compare standalone machine types against each other; they sort
2461 * in increasing order.
2462 */
2463 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2464 object_class_get_name(OBJECT_CLASS(mc2)));
2465 }
2466
2467 /* Standalone machine types sort after families. */
2468 return 1;
2469 }
2470
2471 if (mc2->family == NULL) {
2472 /* Families sort before standalone machine types. */
2473 return -1;
2474 }
2475
2476 /* Families sort between each other alphabetically increasingly. */
2477 res = strcmp(mc1->family, mc2->family);
2478 if (res != 0) {
2479 return res;
2480 }
2481
2482 /* Within the same family, machine types sort in decreasing order. */
2483 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2484 object_class_get_name(OBJECT_CLASS(mc1)));
2485 }
2486
2487 static MachineClass *machine_parse(const char *name, GSList *machines)
2488 {
2489 MachineClass *mc;
2490 GSList *el;
2491
2492 if (is_help_option(name)) {
2493 printf("Supported machines are:\n");
2494 machines = g_slist_sort(machines, machine_class_cmp);
2495 for (el = machines; el; el = el->next) {
2496 MachineClass *mc = el->data;
2497 if (mc->alias) {
2498 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2499 }
2500 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2501 mc->is_default ? " (default)" : "",
2502 mc->deprecation_reason ? " (deprecated)" : "");
2503 }
2504 exit(0);
2505 }
2506
2507 mc = find_machine(name, machines);
2508 if (!mc) {
2509 error_report("unsupported machine type");
2510 error_printf("Use -machine help to list supported machines\n");
2511 exit(1);
2512 }
2513 return mc;
2514 }
2515
2516 void qemu_add_exit_notifier(Notifier *notify)
2517 {
2518 notifier_list_add(&exit_notifiers, notify);
2519 }
2520
2521 void qemu_remove_exit_notifier(Notifier *notify)
2522 {
2523 notifier_remove(notify);
2524 }
2525
2526 static void qemu_run_exit_notifiers(void)
2527 {
2528 notifier_list_notify(&exit_notifiers, NULL);
2529 }
2530
2531 static const char *pid_file;
2532 static Notifier qemu_unlink_pidfile_notifier;
2533
2534 static void qemu_unlink_pidfile(Notifier *n, void *data)
2535 {
2536 if (pid_file) {
2537 unlink(pid_file);
2538 }
2539 }
2540
2541 bool machine_init_done;
2542
2543 void qemu_add_machine_init_done_notifier(Notifier *notify)
2544 {
2545 notifier_list_add(&machine_init_done_notifiers, notify);
2546 if (machine_init_done) {
2547 notify->notify(notify, NULL);
2548 }
2549 }
2550
2551 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2552 {
2553 notifier_remove(notify);
2554 }
2555
2556 static void qemu_run_machine_init_done_notifiers(void)
2557 {
2558 machine_init_done = true;
2559 notifier_list_notify(&machine_init_done_notifiers, NULL);
2560 }
2561
2562 static const QEMUOption *lookup_opt(int argc, char **argv,
2563 const char **poptarg, int *poptind)
2564 {
2565 const QEMUOption *popt;
2566 int optind = *poptind;
2567 char *r = argv[optind];
2568 const char *optarg;
2569
2570 loc_set_cmdline(argv, optind, 1);
2571 optind++;
2572 /* Treat --foo the same as -foo. */
2573 if (r[1] == '-')
2574 r++;
2575 popt = qemu_options;
2576 for(;;) {
2577 if (!popt->name) {
2578 error_report("invalid option");
2579 exit(1);
2580 }
2581 if (!strcmp(popt->name, r + 1))
2582 break;
2583 popt++;
2584 }
2585 if (popt->flags & HAS_ARG) {
2586 if (optind >= argc) {
2587 error_report("requires an argument");
2588 exit(1);
2589 }
2590 optarg = argv[optind++];
2591 loc_set_cmdline(argv, optind - 2, 2);
2592 } else {
2593 optarg = NULL;
2594 }
2595
2596 *poptarg = optarg;
2597 *poptind = optind;
2598
2599 return popt;
2600 }
2601
2602 static MachineClass *select_machine(void)
2603 {
2604 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
2605 MachineClass *machine_class = find_default_machine(machines);
2606 const char *optarg;
2607 QemuOpts *opts;
2608 Location loc;
2609
2610 loc_push_none(&loc);
2611
2612 opts = qemu_get_machine_opts();
2613 qemu_opts_loc_restore(opts);
2614
2615 optarg = qemu_opt_get(opts, "type");
2616 if (optarg) {
2617 machine_class = machine_parse(optarg, machines);
2618 }
2619
2620 if (!machine_class) {
2621 error_report("No machine specified, and there is no default");
2622 error_printf("Use -machine help to list supported machines\n");
2623 exit(1);
2624 }
2625
2626 loc_pop(&loc);
2627 g_slist_free(machines);
2628 return machine_class;
2629 }
2630
2631 static int machine_set_property(void *opaque,
2632 const char *name, const char *value,
2633 Error **errp)
2634 {
2635 Object *obj = OBJECT(opaque);
2636 Error *local_err = NULL;
2637 char *p, *qom_name;
2638
2639 if (strcmp(name, "type") == 0) {
2640 return 0;
2641 }
2642
2643 qom_name = g_strdup(name);
2644 for (p = qom_name; *p; p++) {
2645 if (*p == '_') {
2646 *p = '-';
2647 }
2648 }
2649
2650 object_property_parse(obj, value, qom_name, &local_err);
2651 g_free(qom_name);
2652
2653 if (local_err) {
2654 error_propagate(errp, local_err);
2655 return -1;
2656 }
2657
2658 return 0;
2659 }
2660
2661
2662 /*
2663 * Initial object creation happens before all other
2664 * QEMU data types are created. The majority of objects
2665 * can be created at this point. The rng-egd object
2666 * cannot be created here, as it depends on the chardev
2667 * already existing.
2668 */
2669 static bool object_create_initial(const char *type, QemuOpts *opts)
2670 {
2671 ObjectClass *klass;
2672
2673 if (is_help_option(type)) {
2674 GSList *l, *list;
2675
2676 printf("List of user creatable objects:\n");
2677 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2678 for (l = list; l != NULL; l = l->next) {
2679 ObjectClass *oc = OBJECT_CLASS(l->data);
2680 printf(" %s\n", object_class_get_name(oc));
2681 }
2682 g_slist_free(list);
2683 exit(0);
2684 }
2685
2686 klass = object_class_by_name(type);
2687 if (klass && qemu_opt_has_help_opt(opts)) {
2688 ObjectPropertyIterator iter;
2689 ObjectProperty *prop;
2690 GPtrArray *array = g_ptr_array_new();
2691 int i;
2692
2693 object_class_property_iter_init(&iter, klass);
2694 while ((prop = object_property_iter_next(&iter))) {
2695 GString *str;
2696
2697 if (!prop->set) {
2698 continue;
2699 }
2700
2701 str = g_string_new(NULL);
2702 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2703 if (prop->description) {
2704 if (str->len < 24) {
2705 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2706 }
2707 g_string_append_printf(str, " - %s", prop->description);
2708 }
2709 g_ptr_array_add(array, g_string_free(str, false));
2710 }
2711 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2712 if (array->len > 0) {
2713 printf("%s options:\n", type);
2714 } else {
2715 printf("There are no options for %s.\n", type);
2716 }
2717 for (i = 0; i < array->len; i++) {
2718 printf("%s\n", (char *)array->pdata[i]);
2719 }
2720 g_ptr_array_set_free_func(array, g_free);
2721 g_ptr_array_free(array, true);
2722 exit(0);
2723 }
2724
2725 /*
2726 * Objects should not be made "delayed" without a reason. If you
2727 * add one, state the reason in a comment!
2728 */
2729
2730 /* Reason: rng-egd property "chardev" */
2731 if (g_str_equal(type, "rng-egd")) {
2732 return false;
2733 }
2734
2735 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2736 /* Reason: cryptodev-vhost-user property "chardev" */
2737 if (g_str_equal(type, "cryptodev-vhost-user")) {
2738 return false;
2739 }
2740 #endif
2741
2742 /*
2743 * Reason: filter-* property "netdev" etc.
2744 */
2745 if (g_str_equal(type, "filter-buffer") ||
2746 g_str_equal(type, "filter-dump") ||
2747 g_str_equal(type, "filter-mirror") ||
2748 g_str_equal(type, "filter-redirector") ||
2749 g_str_equal(type, "colo-compare") ||
2750 g_str_equal(type, "filter-rewriter") ||
2751 g_str_equal(type, "filter-replay")) {
2752 return false;
2753 }
2754
2755 /* Memory allocation by backends needs to be done
2756 * after configure_accelerator() (due to the tcg_enabled()
2757 * checks at memory_region_init_*()).
2758 *
2759 * Also, allocation of large amounts of memory may delay
2760 * chardev initialization for too long, and trigger timeouts
2761 * on software that waits for a monitor socket to be created
2762 * (e.g. libvirt).
2763 */
2764 if (g_str_has_prefix(type, "memory-backend-")) {
2765 return false;
2766 }
2767
2768 return true;
2769 }
2770
2771
2772 /*
2773 * The remainder of object creation happens after the
2774 * creation of chardev, fsdev, net clients and device data types.
2775 */
2776 static bool object_create_delayed(const char *type, QemuOpts *opts)
2777 {
2778 return !object_create_initial(type, opts);
2779 }
2780
2781
2782 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2783 MachineClass *mc)
2784 {
2785 uint64_t sz;
2786 const char *mem_str;
2787 const ram_addr_t default_ram_size = mc->default_ram_size;
2788 QemuOpts *opts = qemu_find_opts_singleton("memory");
2789 Location loc;
2790
2791 loc_push_none(&loc);
2792 qemu_opts_loc_restore(opts);
2793
2794 sz = 0;
2795 mem_str = qemu_opt_get(opts, "size");
2796 if (mem_str) {
2797 if (!*mem_str) {
2798 error_report("missing 'size' option value");
2799 exit(EXIT_FAILURE);
2800 }
2801
2802 sz = qemu_opt_get_size(opts, "size", ram_size);
2803
2804 /* Fix up legacy suffix-less format */
2805 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2806 uint64_t overflow_check = sz;
2807
2808 sz *= MiB;
2809 if (sz / MiB != overflow_check) {
2810 error_report("too large 'size' option value");
2811 exit(EXIT_FAILURE);
2812 }
2813 }
2814 }
2815
2816 /* backward compatibility behaviour for case "-m 0" */
2817 if (sz == 0) {
2818 sz = default_ram_size;
2819 }
2820
2821 sz = QEMU_ALIGN_UP(sz, 8192);
2822 ram_size = sz;
2823 if (ram_size != sz) {
2824 error_report("ram size too large");
2825 exit(EXIT_FAILURE);
2826 }
2827
2828 /* store value for the future use */
2829 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2830 *maxram_size = ram_size;
2831
2832 if (qemu_opt_get(opts, "maxmem")) {
2833 uint64_t slots;
2834
2835 sz = qemu_opt_get_size(opts, "maxmem", 0);
2836 slots = qemu_opt_get_number(opts, "slots", 0);
2837 if (sz < ram_size) {
2838 error_report("invalid value of -m option maxmem: "
2839 "maximum memory size (0x%" PRIx64 ") must be at least "
2840 "the initial memory size (0x" RAM_ADDR_FMT ")",
2841 sz, ram_size);
2842 exit(EXIT_FAILURE);
2843 } else if (slots && sz == ram_size) {
2844 error_report("invalid value of -m option maxmem: "
2845 "memory slots were specified but maximum memory size "
2846 "(0x%" PRIx64 ") is equal to the initial memory size "
2847 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2848 exit(EXIT_FAILURE);
2849 }
2850
2851 *maxram_size = sz;
2852 *ram_slots = slots;
2853 } else if (qemu_opt_get(opts, "slots")) {
2854 error_report("invalid -m option value: missing 'maxmem' option");
2855 exit(EXIT_FAILURE);
2856 }
2857
2858 loc_pop(&loc);
2859 }
2860
2861 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2862 {
2863 GlobalProperty *g;
2864
2865 g = g_malloc0(sizeof(*g));
2866 g->driver = qemu_opt_get(opts, "driver");
2867 g->property = qemu_opt_get(opts, "property");
2868 g->value = qemu_opt_get(opts, "value");
2869 qdev_prop_register_global(g);
2870 return 0;
2871 }
2872
2873 static int qemu_read_default_config_file(void)
2874 {
2875 int ret;
2876
2877 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2878 if (ret < 0 && ret != -ENOENT) {
2879 return ret;
2880 }
2881
2882 return 0;
2883 }
2884
2885 static void user_register_global_props(void)
2886 {
2887 qemu_opts_foreach(qemu_find_opts("global"),
2888 global_init_func, NULL, NULL);
2889 }
2890
2891 int main(int argc, char **argv, char **envp)
2892 {
2893 int i;
2894 int snapshot, linux_boot;
2895 const char *initrd_filename;
2896 const char *kernel_filename, *kernel_cmdline;
2897 const char *boot_order = NULL;
2898 const char *boot_once = NULL;
2899 DisplayState *ds;
2900 QemuOpts *opts, *machine_opts;
2901 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2902 QemuOptsList *olist;
2903 int optind;
2904 const char *optarg;
2905 const char *loadvm = NULL;
2906 MachineClass *machine_class;
2907 const char *cpu_option;
2908 const char *vga_model = NULL;
2909 const char *qtest_chrdev = NULL;
2910 const char *qtest_log = NULL;
2911 const char *incoming = NULL;
2912 bool userconfig = true;
2913 bool nographic = false;
2914 int display_remote = 0;
2915 const char *log_mask = NULL;
2916 const char *log_file = NULL;
2917 char *trace_file = NULL;
2918 ram_addr_t maxram_size;
2919 uint64_t ram_slots = 0;
2920 FILE *vmstate_dump_file = NULL;
2921 Error *main_loop_err = NULL;
2922 Error *err = NULL;
2923 bool list_data_dirs = false;
2924 char *dir, **dirs;
2925 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
2926
2927 error_init(argv[0]);
2928 module_call_init(MODULE_INIT_TRACE);
2929
2930 qemu_init_cpu_list();
2931 qemu_init_cpu_loop();
2932
2933 qemu_mutex_lock_iothread();
2934
2935 atexit(qemu_run_exit_notifiers);
2936 qemu_init_exec_dir(argv[0]);
2937
2938 module_call_init(MODULE_INIT_QOM);
2939
2940 qemu_add_opts(&qemu_drive_opts);
2941 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2942 qemu_add_drive_opts(&qemu_common_drive_opts);
2943 qemu_add_drive_opts(&qemu_drive_opts);
2944 qemu_add_drive_opts(&bdrv_runtime_opts);
2945 qemu_add_opts(&qemu_chardev_opts);
2946 qemu_add_opts(&qemu_device_opts);
2947 qemu_add_opts(&qemu_netdev_opts);
2948 qemu_add_opts(&qemu_nic_opts);
2949 qemu_add_opts(&qemu_net_opts);
2950 qemu_add_opts(&qemu_rtc_opts);
2951 qemu_add_opts(&qemu_global_opts);
2952 qemu_add_opts(&qemu_mon_opts);
2953 qemu_add_opts(&qemu_trace_opts);
2954 qemu_add_opts(&qemu_option_rom_opts);
2955 qemu_add_opts(&qemu_machine_opts);
2956 qemu_add_opts(&qemu_accel_opts);
2957 qemu_add_opts(&qemu_mem_opts);
2958 qemu_add_opts(&qemu_smp_opts);
2959 qemu_add_opts(&qemu_boot_opts);
2960 qemu_add_opts(&qemu_add_fd_opts);
2961 qemu_add_opts(&qemu_object_opts);
2962 qemu_add_opts(&qemu_tpmdev_opts);
2963 qemu_add_opts(&qemu_realtime_opts);
2964 qemu_add_opts(&qemu_overcommit_opts);
2965 qemu_add_opts(&qemu_msg_opts);
2966 qemu_add_opts(&qemu_name_opts);
2967 qemu_add_opts(&qemu_numa_opts);
2968 qemu_add_opts(&qemu_icount_opts);
2969 qemu_add_opts(&qemu_semihosting_config_opts);
2970 qemu_add_opts(&qemu_fw_cfg_opts);
2971 module_call_init(MODULE_INIT_OPTS);
2972
2973 runstate_init();
2974 precopy_infrastructure_init();
2975 postcopy_infrastructure_init();
2976 monitor_init_globals();
2977
2978 if (qcrypto_init(&err) < 0) {
2979 error_reportf_err(err, "cannot initialize crypto: ");
2980 exit(1);
2981 }
2982
2983 QLIST_INIT (&vm_change_state_head);
2984 os_setup_early_signal_handling();
2985
2986 cpu_option = NULL;
2987 snapshot = 0;
2988
2989 nb_nics = 0;
2990
2991 bdrv_init_with_whitelist();
2992
2993 autostart = 1;
2994
2995 /* first pass of option parsing */
2996 optind = 1;
2997 while (optind < argc) {
2998 if (argv[optind][0] != '-') {
2999 /* disk image */
3000 optind++;
3001 } else {
3002 const QEMUOption *popt;
3003
3004 popt = lookup_opt(argc, argv, &optarg, &optind);
3005 switch (popt->index) {
3006 case QEMU_OPTION_nouserconfig:
3007 userconfig = false;
3008 break;
3009 }
3010 }
3011 }
3012
3013 if (userconfig) {
3014 if (qemu_read_default_config_file() < 0) {
3015 exit(1);
3016 }
3017 }
3018
3019 /* second pass of option parsing */
3020 optind = 1;
3021 for(;;) {
3022 if (optind >= argc)
3023 break;
3024 if (argv[optind][0] != '-') {
3025 loc_set_cmdline(argv, optind, 1);
3026 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3027 } else {
3028 const QEMUOption *popt;
3029
3030 popt = lookup_opt(argc, argv, &optarg, &optind);
3031 if (!(popt->arch_mask & arch_type)) {
3032 error_report("Option not supported for this target");
3033 exit(1);
3034 }
3035 switch(popt->index) {
3036 case QEMU_OPTION_cpu:
3037 /* hw initialization will check this */
3038 cpu_option = optarg;
3039 break;
3040 case QEMU_OPTION_hda:
3041 case QEMU_OPTION_hdb:
3042 case QEMU_OPTION_hdc:
3043 case QEMU_OPTION_hdd:
3044 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3045 HD_OPTS);
3046 break;
3047 case QEMU_OPTION_blockdev:
3048 {
3049 Visitor *v;
3050 BlockdevOptionsQueueEntry *bdo;
3051
3052 v = qobject_input_visitor_new_str(optarg, "driver",
3053 &error_fatal);
3054
3055 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3056 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3057 &error_fatal);
3058 visit_free(v);
3059 loc_save(&bdo->loc);
3060 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3061 break;
3062 }
3063 case QEMU_OPTION_drive:
3064 if (drive_def(optarg) == NULL) {
3065 exit(1);
3066 }
3067 break;
3068 case QEMU_OPTION_set:
3069 if (qemu_set_option(optarg) != 0)
3070 exit(1);
3071 break;
3072 case QEMU_OPTION_global:
3073 if (qemu_global_option(optarg) != 0)
3074 exit(1);
3075 break;
3076 case QEMU_OPTION_mtdblock:
3077 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3078 break;
3079 case QEMU_OPTION_sd:
3080 drive_add(IF_SD, -1, optarg, SD_OPTS);
3081 break;
3082 case QEMU_OPTION_pflash:
3083 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3084 break;
3085 case QEMU_OPTION_snapshot:
3086 snapshot = 1;
3087 break;
3088 case QEMU_OPTION_numa:
3089 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3090 optarg, true);
3091 if (!opts) {
3092 exit(1);
3093 }
3094 break;
3095 case QEMU_OPTION_display:
3096 parse_display(optarg);
3097 break;
3098 case QEMU_OPTION_nographic:
3099 olist = qemu_find_opts("machine");
3100 qemu_opts_parse_noisily(olist, "graphics=off", false);
3101 nographic = true;
3102 dpy.type = DISPLAY_TYPE_NONE;
3103 break;
3104 case QEMU_OPTION_curses:
3105 #ifdef CONFIG_CURSES
3106 dpy.type = DISPLAY_TYPE_CURSES;
3107 #else
3108 error_report("curses or iconv support is disabled");
3109 exit(1);
3110 #endif
3111 break;
3112 case QEMU_OPTION_portrait:
3113 graphic_rotate = 90;
3114 break;
3115 case QEMU_OPTION_rotate:
3116 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3117 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3118 graphic_rotate != 180 && graphic_rotate != 270) {
3119 error_report("only 90, 180, 270 deg rotation is available");
3120 exit(1);
3121 }
3122 break;
3123 case QEMU_OPTION_kernel:
3124 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3125 &error_abort);
3126 break;
3127 case QEMU_OPTION_initrd:
3128 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3129 &error_abort);
3130 break;
3131 case QEMU_OPTION_append:
3132 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3133 &error_abort);
3134 break;
3135 case QEMU_OPTION_dtb:
3136 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3137 &error_abort);
3138 break;
3139 case QEMU_OPTION_cdrom:
3140 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3141 break;
3142 case QEMU_OPTION_boot:
3143 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3144 optarg, true);
3145 if (!opts) {
3146 exit(1);
3147 }
3148 break;
3149 case QEMU_OPTION_fda:
3150 case QEMU_OPTION_fdb:
3151 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3152 optarg, FD_OPTS);
3153 break;
3154 case QEMU_OPTION_no_fd_bootchk:
3155 fd_bootchk = 0;
3156 break;
3157 case QEMU_OPTION_netdev:
3158 default_net = 0;
3159 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3160 exit(1);
3161 }
3162 break;
3163 case QEMU_OPTION_nic:
3164 default_net = 0;
3165 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3166 exit(1);
3167 }
3168 break;
3169 case QEMU_OPTION_net:
3170 default_net = 0;
3171 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3172 exit(1);
3173 }
3174 break;
3175 #ifdef CONFIG_LIBISCSI
3176 case QEMU_OPTION_iscsi:
3177 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3178 optarg, false);
3179 if (!opts) {
3180 exit(1);
3181 }
3182 break;
3183 #endif
3184 case QEMU_OPTION_bt:
3185 warn_report("The bluetooth subsystem is deprecated and will "
3186 "be removed soon. If the bluetooth subsystem is "
3187 "still useful for you, please send a mail to "
3188 "qemu-devel@nongnu.org with your usecase.");
3189 add_device_config(DEV_BT, optarg);
3190 break;
3191 case QEMU_OPTION_audio_help:
3192 audio_legacy_help();
3193 exit (0);
3194 break;
3195 case QEMU_OPTION_audiodev:
3196 audio_parse_option(optarg);
3197 break;
3198 case QEMU_OPTION_soundhw:
3199 select_soundhw (optarg);
3200 break;
3201 case QEMU_OPTION_h:
3202 help(0);
3203 break;
3204 case QEMU_OPTION_version:
3205 version();
3206 exit(0);
3207 break;
3208 case QEMU_OPTION_m:
3209 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3210 optarg, true);
3211 if (!opts) {
3212 exit(EXIT_FAILURE);
3213 }
3214 break;
3215 #ifdef CONFIG_TPM
3216 case QEMU_OPTION_tpmdev:
3217 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3218 exit(1);
3219 }
3220 break;
3221 #endif
3222 case QEMU_OPTION_mempath:
3223 mem_path = optarg;
3224 break;
3225 case QEMU_OPTION_mem_prealloc:
3226 mem_prealloc = 1;
3227 break;
3228 case QEMU_OPTION_d:
3229 log_mask = optarg;
3230 break;
3231 case QEMU_OPTION_D:
3232 log_file = optarg;
3233 break;
3234 case QEMU_OPTION_DFILTER:
3235 qemu_set_dfilter_ranges(optarg, &error_fatal);
3236 break;
3237 case QEMU_OPTION_seed:
3238 qemu_guest_random_seed_main(optarg, &error_fatal);
3239 break;
3240 case QEMU_OPTION_s:
3241 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3242 break;
3243 case QEMU_OPTION_gdb:
3244 add_device_config(DEV_GDB, optarg);
3245 break;
3246 case QEMU_OPTION_L:
3247 if (is_help_option(optarg)) {
3248 list_data_dirs = true;
3249 } else {
3250 qemu_add_data_dir(optarg);
3251 }
3252 break;
3253 case QEMU_OPTION_bios:
3254 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3255 &error_abort);
3256 break;
3257 case QEMU_OPTION_singlestep:
3258 singlestep = 1;
3259 break;
3260 case QEMU_OPTION_S:
3261 autostart = 0;
3262 break;
3263 case QEMU_OPTION_k:
3264 keyboard_layout = optarg;
3265 break;
3266 case QEMU_OPTION_vga:
3267 vga_model = optarg;
3268 default_vga = 0;
3269 break;
3270 case QEMU_OPTION_g:
3271 {
3272 const char *p;
3273 int w, h, depth;
3274 p = optarg;
3275 w = strtol(p, (char **)&p, 10);
3276 if (w <= 0) {
3277 graphic_error:
3278 error_report("invalid resolution or depth");
3279 exit(1);
3280 }
3281 if (*p != 'x')
3282 goto graphic_error;
3283 p++;
3284 h = strtol(p, (char **)&p, 10);
3285 if (h <= 0)
3286 goto graphic_error;
3287 if (*p == 'x') {
3288 p++;
3289 depth = strtol(p, (char **)&p, 10);
3290 if (depth != 8 && depth != 15 && depth != 16 &&
3291 depth != 24 && depth != 32)
3292 goto graphic_error;
3293 } else if (*p == '\0') {
3294 depth = graphic_depth;
3295 } else {
3296 goto graphic_error;
3297 }
3298
3299 graphic_width = w;
3300 graphic_height = h;
3301 graphic_depth = depth;
3302 }
3303 break;
3304 case QEMU_OPTION_echr:
3305 {
3306 char *r;
3307 term_escape_char = strtol(optarg, &r, 0);
3308 if (r == optarg)
3309 printf("Bad argument to echr\n");
3310 break;
3311 }
3312 case QEMU_OPTION_monitor:
3313 default_monitor = 0;
3314 if (strncmp(optarg, "none", 4)) {
3315 monitor_parse(optarg, "readline", false);
3316 }
3317 break;
3318 case QEMU_OPTION_qmp:
3319 monitor_parse(optarg, "control", false);
3320 default_monitor = 0;
3321 break;
3322 case QEMU_OPTION_qmp_pretty:
3323 monitor_parse(optarg, "control", true);
3324 default_monitor = 0;
3325 break;
3326 case QEMU_OPTION_mon:
3327 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3328 true);
3329 if (!opts) {
3330 exit(1);
3331 }
3332 default_monitor = 0;
3333 break;
3334 case QEMU_OPTION_chardev:
3335 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3336 optarg, true);
3337 if (!opts) {
3338 exit(1);
3339 }
3340 break;
3341 case QEMU_OPTION_fsdev:
3342 olist = qemu_find_opts("fsdev");
3343 if (!olist) {
3344 error_report("fsdev support is disabled");
3345 exit(1);
3346 }
3347 opts = qemu_opts_parse_noisily(olist, optarg, true);
3348 if (!opts) {
3349 exit(1);
3350 }
3351 break;
3352 case QEMU_OPTION_virtfs: {
3353 QemuOpts *fsdev;
3354 QemuOpts *device;
3355 const char *writeout, *sock_fd, *socket, *path, *security_model;
3356
3357 olist = qemu_find_opts("virtfs");
3358 if (!olist) {
3359 error_report("virtfs support is disabled");
3360 exit(1);
3361 }
3362 opts = qemu_opts_parse_noisily(olist, optarg, true);
3363 if (!opts) {
3364 exit(1);
3365 }
3366
3367 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3368 qemu_opt_get(opts, "mount_tag") == NULL) {
3369 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3370 exit(1);
3371 }
3372 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3373 qemu_opts_id(opts) ?:
3374 qemu_opt_get(opts, "mount_tag"),
3375 1, NULL);
3376 if (!fsdev) {
3377 error_report("duplicate or invalid fsdev id: %s",
3378 qemu_opt_get(opts, "mount_tag"));
3379 exit(1);
3380 }
3381
3382 writeout = qemu_opt_get(opts, "writeout");
3383 if (writeout) {
3384 #ifdef CONFIG_SYNC_FILE_RANGE
3385 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3386 #else
3387 error_report("writeout=immediate not supported "
3388 "on this platform");
3389 exit(1);
3390 #endif
3391 }
3392 qemu_opt_set(fsdev, "fsdriver",
3393 qemu_opt_get(opts, "fsdriver"), &error_abort);
3394 path = qemu_opt_get(opts, "path");
3395 if (path) {
3396 qemu_opt_set(fsdev, "path", path, &error_abort);
3397 }
3398 security_model = qemu_opt_get(opts, "security_model");
3399 if (security_model) {
3400 qemu_opt_set(fsdev, "security_model", security_model,
3401 &error_abort);
3402 }
3403 socket = qemu_opt_get(opts, "socket");
3404 if (socket) {
3405 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3406 }
3407 sock_fd = qemu_opt_get(opts, "sock_fd");
3408 if (sock_fd) {
3409 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3410 }
3411
3412 qemu_opt_set_bool(fsdev, "readonly",
3413 qemu_opt_get_bool(opts, "readonly", 0),
3414 &error_abort);
3415 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3416 &error_abort);
3417 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3418 qemu_opt_set(device, "fsdev",
3419 qemu_opts_id(fsdev), &error_abort);
3420 qemu_opt_set(device, "mount_tag",
3421 qemu_opt_get(opts, "mount_tag"), &error_abort);
3422 break;
3423 }
3424 case QEMU_OPTION_virtfs_synth: {
3425 QemuOpts *fsdev;
3426 QemuOpts *device;
3427
3428 warn_report("'-virtfs_synth' is deprecated, please use "
3429 "'-fsdev synth' and '-device virtio-9p-...' "
3430 "instead");
3431
3432 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3433 1, NULL);
3434 if (!fsdev) {
3435 error_report("duplicate option: %s", "virtfs_synth");
3436 exit(1);
3437 }
3438 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3439
3440 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3441 &error_abort);
3442 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3443 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3444 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3445 break;
3446 }
3447 case QEMU_OPTION_serial:
3448 add_device_config(DEV_SERIAL, optarg);
3449 default_serial = 0;
3450 if (strncmp(optarg, "mon:", 4) == 0) {
3451 default_monitor = 0;
3452 }
3453 break;
3454 case QEMU_OPTION_watchdog:
3455 if (watchdog) {
3456 error_report("only one watchdog option may be given");
3457 return 1;
3458 }
3459 watchdog = optarg;
3460 break;
3461 case QEMU_OPTION_watchdog_action:
3462 if (select_watchdog_action(optarg) == -1) {
3463 error_report("unknown -watchdog-action parameter");
3464 exit(1);
3465 }
3466 break;
3467 case QEMU_OPTION_parallel:
3468 add_device_config(DEV_PARALLEL, optarg);
3469 default_parallel = 0;
3470 if (strncmp(optarg, "mon:", 4) == 0) {
3471 default_monitor = 0;
3472 }
3473 break;
3474 case QEMU_OPTION_debugcon:
3475 add_device_config(DEV_DEBUGCON, optarg);
3476 break;
3477 case QEMU_OPTION_loadvm:
3478 loadvm = optarg;
3479 break;
3480 case QEMU_OPTION_full_screen:
3481 dpy.has_full_screen = true;
3482 dpy.full_screen = true;
3483 break;
3484 case QEMU_OPTION_alt_grab:
3485 alt_grab = 1;
3486 break;
3487 case QEMU_OPTION_ctrl_grab:
3488 ctrl_grab = 1;
3489 break;
3490 case QEMU_OPTION_no_quit:
3491 dpy.has_window_close = true;
3492 dpy.window_close = false;
3493 break;
3494 case QEMU_OPTION_sdl:
3495 #ifdef CONFIG_SDL
3496 dpy.type = DISPLAY_TYPE_SDL;
3497 break;
3498 #else
3499 error_report("SDL support is disabled");
3500 exit(1);
3501 #endif
3502 case QEMU_OPTION_pidfile:
3503 pid_file = optarg;
3504 break;
3505 case QEMU_OPTION_win2k_hack:
3506 win2k_install_hack = 1;
3507 break;
3508 case QEMU_OPTION_acpitable:
3509 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3510 optarg, true);
3511 if (!opts) {
3512 exit(1);
3513 }
3514 acpi_table_add(opts, &error_fatal);
3515 break;
3516 case QEMU_OPTION_smbios:
3517 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3518 optarg, false);
3519 if (!opts) {
3520 exit(1);
3521 }
3522 smbios_entry_add(opts, &error_fatal);
3523 break;
3524 case QEMU_OPTION_fwcfg:
3525 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3526 optarg, true);
3527 if (opts == NULL) {
3528 exit(1);
3529 }
3530 break;
3531 case QEMU_OPTION_preconfig:
3532 preconfig_exit_requested = false;
3533 break;
3534 case QEMU_OPTION_enable_kvm:
3535 olist = qemu_find_opts("machine");
3536 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3537 break;
3538 case QEMU_OPTION_M:
3539 case QEMU_OPTION_machine:
3540 olist = qemu_find_opts("machine");
3541 opts = qemu_opts_parse_noisily(olist, optarg, true);
3542 if (!opts) {
3543 exit(1);
3544 }
3545 break;
3546 case QEMU_OPTION_no_kvm:
3547 olist = qemu_find_opts("machine");
3548 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3549 break;
3550 case QEMU_OPTION_accel:
3551 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3552 optarg, true);
3553 optarg = qemu_opt_get(accel_opts, "accel");
3554 if (!optarg || is_help_option(optarg)) {
3555 printf("Accelerators supported in QEMU binary:\n");
3556 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3557 false);
3558 for (el = accel_list; el; el = el->next) {
3559 gchar *typename = g_strdup(object_class_get_name(
3560 OBJECT_CLASS(el->data)));
3561 /* omit qtest which is used for tests only */
3562 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3563 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3564 gchar **optname = g_strsplit(typename,
3565 ACCEL_CLASS_SUFFIX, 0);
3566 printf("%s\n", optname[0]);
3567 g_free(optname);
3568 }
3569 g_free(typename);
3570 }
3571 g_slist_free(accel_list);
3572 exit(0);
3573 }
3574 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3575 false, &error_abort);
3576 qemu_opt_set(opts, "accel", optarg, &error_abort);
3577 break;
3578 case QEMU_OPTION_usb:
3579 olist = qemu_find_opts("machine");
3580 qemu_opts_parse_noisily(olist, "usb=on", false);
3581 break;
3582 case QEMU_OPTION_usbdevice:
3583 error_report("'-usbdevice' is deprecated, please use "
3584 "'-device usb-...' instead");
3585 olist = qemu_find_opts("machine");
3586 qemu_opts_parse_noisily(olist, "usb=on", false);
3587 add_device_config(DEV_USB, optarg);
3588 break;
3589 case QEMU_OPTION_device:
3590 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3591 optarg, true)) {
3592 exit(1);
3593 }
3594 break;
3595 case QEMU_OPTION_smp:
3596 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3597 optarg, true)) {
3598 exit(1);
3599 }
3600 break;
3601 case QEMU_OPTION_vnc:
3602 vnc_parse(optarg, &error_fatal);
3603 break;
3604 case QEMU_OPTION_no_acpi:
3605 acpi_enabled = 0;
3606 break;
3607 case QEMU_OPTION_no_hpet:
3608 no_hpet = 1;
3609 break;
3610 case QEMU_OPTION_no_reboot:
3611 no_reboot = 1;
3612 break;
3613 case QEMU_OPTION_no_shutdown:
3614 no_shutdown = 1;
3615 break;
3616 case QEMU_OPTION_show_cursor:
3617 cursor_hide = 0;
3618 break;
3619 case QEMU_OPTION_uuid:
3620 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3621 error_report("failed to parse UUID string: wrong format");
3622 exit(1);
3623 }
3624 qemu_uuid_set = true;
3625 break;
3626 case QEMU_OPTION_option_rom:
3627 if (nb_option_roms >= MAX_OPTION_ROMS) {
3628 error_report("too many option ROMs");
3629 exit(1);
3630 }
3631 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3632 optarg, true);
3633 if (!opts) {
3634 exit(1);
3635 }
3636 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3637 option_rom[nb_option_roms].bootindex =
3638 qemu_opt_get_number(opts, "bootindex", -1);
3639 if (!option_rom[nb_option_roms].name) {
3640 error_report("Option ROM file is not specified");
3641 exit(1);
3642 }
3643 nb_option_roms++;
3644 break;
3645 case QEMU_OPTION_semihosting:
3646 qemu_semihosting_enable();
3647 break;
3648 case QEMU_OPTION_semihosting_config:
3649 if (qemu_semihosting_config_options(optarg) != 0) {
3650 exit(1);
3651 }
3652 break;
3653 case QEMU_OPTION_name:
3654 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3655 optarg, true);
3656 if (!opts) {
3657 exit(1);
3658 }
3659 break;
3660 case QEMU_OPTION_prom_env:
3661 if (nb_prom_envs >= MAX_PROM_ENVS) {
3662 error_report("too many prom variables");
3663 exit(1);
3664 }
3665 prom_envs[nb_prom_envs] = optarg;
3666 nb_prom_envs++;
3667 break;
3668 case QEMU_OPTION_old_param:
3669 old_param = 1;
3670 break;
3671 case QEMU_OPTION_rtc:
3672 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3673 false);
3674 if (!opts) {
3675 exit(1);
3676 }
3677 break;
3678 case QEMU_OPTION_tb_size:
3679 #ifndef CONFIG_TCG
3680 error_report("TCG is disabled");
3681 exit(1);
3682 #endif
3683 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3684 error_report("Invalid argument to -tb-size");
3685 exit(1);
3686 }
3687 break;
3688 case QEMU_OPTION_icount:
3689 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3690 optarg, true);
3691 if (!icount_opts) {
3692 exit(1);
3693 }
3694 break;
3695 case QEMU_OPTION_incoming:
3696 if (!incoming) {
3697 runstate_set(RUN_STATE_INMIGRATE);
3698 }
3699 incoming = optarg;
3700 break;
3701 case QEMU_OPTION_only_migratable:
3702 only_migratable = 1;
3703 break;
3704 case QEMU_OPTION_nodefaults:
3705 has_defaults = 0;
3706 break;
3707 case QEMU_OPTION_xen_domid:
3708 if (!(xen_available())) {
3709 error_report("Option not supported for this target");
3710 exit(1);
3711 }
3712 xen_domid = atoi(optarg);
3713 break;
3714 case QEMU_OPTION_xen_attach:
3715 if (!(xen_available())) {
3716 error_report("Option not supported for this target");
3717 exit(1);
3718 }
3719 xen_mode = XEN_ATTACH;
3720 break;
3721 case QEMU_OPTION_xen_domid_restrict:
3722 if (!(xen_available())) {
3723 error_report("Option not supported for this target");
3724 exit(1);
3725 }
3726 xen_domid_restrict = true;
3727 break;
3728 case QEMU_OPTION_trace:
3729 g_free(trace_file);
3730 trace_file = trace_opt_parse(optarg);
3731 break;
3732 case QEMU_OPTION_readconfig:
3733 {
3734 int ret = qemu_read_config_file(optarg);
3735 if (ret < 0) {
3736 error_report("read config %s: %s", optarg,
3737 strerror(-ret));
3738 exit(1);
3739 }
3740 break;
3741 }
3742 case QEMU_OPTION_spice:
3743 olist = qemu_find_opts("spice");
3744 if (!olist) {
3745 error_report("spice support is disabled");
3746 exit(1);
3747 }
3748 opts = qemu_opts_parse_noisily(olist, optarg, false);
3749 if (!opts) {
3750 exit(1);
3751 }
3752 display_remote++;
3753 break;
3754 case QEMU_OPTION_writeconfig:
3755 {
3756 FILE *fp;
3757 if (strcmp(optarg, "-") == 0) {
3758 fp = stdout;
3759 } else {
3760 fp = fopen(optarg, "w");
3761 if (fp == NULL) {
3762 error_report("open %s: %s", optarg,
3763 strerror(errno));
3764 exit(1);
3765 }
3766 }
3767 qemu_config_write(fp);
3768 if (fp != stdout) {
3769 fclose(fp);
3770 }
3771 break;
3772 }
3773 case QEMU_OPTION_qtest:
3774 qtest_chrdev = optarg;
3775 break;
3776 case QEMU_OPTION_qtest_log:
3777 qtest_log = optarg;
3778 break;
3779 case QEMU_OPTION_sandbox:
3780 olist = qemu_find_opts("sandbox");
3781 if (!olist) {
3782 #ifndef CONFIG_SECCOMP
3783 error_report("-sandbox support is not enabled "
3784 "in this QEMU binary");
3785 #endif
3786 exit(1);
3787 }
3788
3789 opts = qemu_opts_parse_noisily(olist, optarg, true);
3790 if (!opts) {
3791 exit(1);
3792 }
3793 break;
3794 case QEMU_OPTION_add_fd:
3795 #ifndef _WIN32
3796 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3797 optarg, false);
3798 if (!opts) {
3799 exit(1);
3800 }
3801 #else
3802 error_report("File descriptor passing is disabled on this "
3803 "platform");
3804 exit(1);
3805 #endif
3806 break;
3807 case QEMU_OPTION_object:
3808 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3809 optarg, true);
3810 if (!opts) {
3811 exit(1);
3812 }
3813 break;
3814 case QEMU_OPTION_realtime:
3815 warn_report("'-realtime mlock=...' is deprecated, please use "
3816 "'-overcommit mem-lock=...' instead");
3817 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3818 optarg, false);
3819 if (!opts) {
3820 exit(1);
3821 }
3822 /* Don't override the -overcommit option if set */
3823 enable_mlock = enable_mlock ||
3824 qemu_opt_get_bool(opts, "mlock", true);
3825 break;
3826 case QEMU_OPTION_overcommit:
3827 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3828 optarg, false);
3829 if (!opts) {
3830 exit(1);
3831 }
3832 /* Don't override the -realtime option if set */
3833 enable_mlock = enable_mlock ||
3834 qemu_opt_get_bool(opts, "mem-lock", false);
3835 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3836 break;
3837 case QEMU_OPTION_msg:
3838 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3839 false);
3840 if (!opts) {
3841 exit(1);
3842 }
3843 configure_msg(opts);
3844 break;
3845 case QEMU_OPTION_dump_vmstate:
3846 if (vmstate_dump_file) {
3847 error_report("only one '-dump-vmstate' "
3848 "option may be given");
3849 exit(1);
3850 }
3851 vmstate_dump_file = fopen(optarg, "w");
3852 if (vmstate_dump_file == NULL) {
3853 error_report("open %s: %s", optarg, strerror(errno));
3854 exit(1);
3855 }
3856 break;
3857 case QEMU_OPTION_enable_sync_profile:
3858 qsp_enable();
3859 break;
3860 case QEMU_OPTION_nouserconfig:
3861 /* Nothing to be parsed here. Especially, do not error out below. */
3862 break;
3863 default:
3864 if (os_parse_cmd_args(popt->index, optarg)) {
3865 error_report("Option not supported in this build");
3866 exit(1);
3867 }
3868 }
3869 }
3870 }
3871 /*
3872 * Clear error location left behind by the loop.
3873 * Best done right after the loop. Do not insert code here!
3874 */
3875 loc_set_none();
3876
3877 user_register_global_props();
3878
3879 replay_configure(icount_opts);
3880
3881 if (incoming && !preconfig_exit_requested) {
3882 error_report("'preconfig' and 'incoming' options are "
3883 "mutually exclusive");
3884 exit(EXIT_FAILURE);
3885 }
3886
3887 configure_rtc(qemu_find_opts_singleton("rtc"));
3888
3889 machine_class = select_machine();
3890 object_set_machine_compat_props(machine_class->compat_props);
3891
3892 set_memory_options(&ram_slots, &maxram_size, machine_class);
3893
3894 os_daemonize();
3895 rcu_disable_atfork();
3896
3897 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
3898 error_reportf_err(err, "cannot create PID file: ");
3899 exit(1);
3900 }
3901
3902 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
3903 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
3904
3905 if (qemu_init_main_loop(&main_loop_err)) {
3906 error_report_err(main_loop_err);
3907 exit(1);
3908 }
3909
3910 #ifdef CONFIG_SECCOMP
3911 olist = qemu_find_opts_err("sandbox", NULL);
3912 if (olist) {
3913 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
3914 }
3915 #endif
3916
3917 qemu_opts_foreach(qemu_find_opts("name"),
3918 parse_name, NULL, &error_fatal);
3919
3920 #ifndef _WIN32
3921 qemu_opts_foreach(qemu_find_opts("add-fd"),
3922 parse_add_fd, NULL, &error_fatal);
3923
3924 qemu_opts_foreach(qemu_find_opts("add-fd"),
3925 cleanup_add_fd, NULL, &error_fatal);
3926 #endif
3927
3928 current_machine = MACHINE(object_new(object_class_get_name(
3929 OBJECT_CLASS(machine_class))));
3930 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
3931 exit(0);
3932 }
3933 object_property_add_child(object_get_root(), "machine",
3934 OBJECT(current_machine), &error_abort);
3935 object_property_add_child(container_get(OBJECT(current_machine),
3936 "/unattached"),
3937 "sysbus", OBJECT(sysbus_get_default()),
3938 NULL);
3939
3940 if (machine_class->minimum_page_bits) {
3941 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
3942 /* This would be a board error: specifying a minimum smaller than
3943 * a target's compile-time fixed setting.
3944 */
3945 g_assert_not_reached();
3946 }
3947 }
3948
3949 cpu_exec_init_all();
3950
3951 if (machine_class->hw_version) {
3952 qemu_set_hw_version(machine_class->hw_version);
3953 }
3954
3955 if (cpu_option && is_help_option(cpu_option)) {
3956 list_cpus(cpu_option);
3957 exit(0);
3958 }
3959
3960 if (!trace_init_backends()) {
3961 exit(1);
3962 }
3963 trace_init_file(trace_file);
3964
3965 /* Open the logfile at this point and set the log mask if necessary.
3966 */
3967 if (log_file) {
3968 qemu_set_log_filename(log_file, &error_fatal);
3969 }
3970
3971 if (log_mask) {
3972 int mask;
3973 mask = qemu_str_to_log_mask(log_mask);
3974 if (!mask) {
3975 qemu_print_log_usage(stdout);
3976 exit(1);
3977 }
3978 qemu_set_log(mask);
3979 } else {
3980 qemu_set_log(0);
3981 }
3982
3983 /* add configured firmware directories */
3984 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
3985 for (i = 0; dirs[i] != NULL; i++) {
3986 qemu_add_data_dir(dirs[i]);
3987 }
3988 g_strfreev(dirs);
3989
3990 /* try to find datadir relative to the executable path */
3991 dir = os_find_datadir();
3992 qemu_add_data_dir(dir);
3993 g_free(dir);
3994
3995 /* add the datadir specified when building */
3996 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
3997
3998 /* -L help lists the data directories and exits. */
3999 if (list_data_dirs) {
4000 for (i = 0; i < data_dir_idx; i++) {
4001 printf("%s\n", data_dir[i]);
4002 }
4003 exit(0);
4004 }
4005
4006 /* machine_class: default to UP */
4007 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4008 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4009 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4010
4011 /* default to machine_class->default_cpus */
4012 smp_cpus = machine_class->default_cpus;
4013 max_cpus = machine_class->default_cpus;
4014
4015 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4016
4017 /* sanity-check smp_cpus and max_cpus against machine_class */
4018 if (smp_cpus < machine_class->min_cpus) {
4019 error_report("Invalid SMP CPUs %d. The min CPUs "
4020 "supported by machine '%s' is %d", smp_cpus,
4021 machine_class->name, machine_class->min_cpus);
4022 exit(1);
4023 }
4024 if (max_cpus > machine_class->max_cpus) {
4025 error_report("Invalid SMP CPUs %d. The max CPUs "
4026 "supported by machine '%s' is %d", max_cpus,
4027 machine_class->name, machine_class->max_cpus);
4028 exit(1);
4029 }
4030
4031 /*
4032 * Get the default machine options from the machine if it is not already
4033 * specified either by the configuration file or by the command line.
4034 */
4035 if (machine_class->default_machine_opts) {
4036 qemu_opts_set_defaults(qemu_find_opts("machine"),
4037 machine_class->default_machine_opts, 0);
4038 }
4039
4040 qemu_opts_foreach(qemu_find_opts("device"),
4041 default_driver_check, NULL, NULL);
4042 qemu_opts_foreach(qemu_find_opts("global"),
4043 default_driver_check, NULL, NULL);
4044
4045 if (!vga_model && !default_vga) {
4046 vga_interface_type = VGA_DEVICE;
4047 }
4048 if (!has_defaults || machine_class->no_serial) {
4049 default_serial = 0;
4050 }
4051 if (!has_defaults || machine_class->no_parallel) {
4052 default_parallel = 0;
4053 }
4054 if (!has_defaults || machine_class->no_floppy) {
4055 default_floppy = 0;
4056 }
4057 if (!has_defaults || machine_class->no_cdrom) {
4058 default_cdrom = 0;
4059 }
4060 if (!has_defaults || machine_class->no_sdcard) {
4061 default_sdcard = 0;
4062 }
4063 if (!has_defaults) {
4064 default_monitor = 0;
4065 default_net = 0;
4066 default_vga = 0;
4067 }
4068
4069 if (is_daemonized()) {
4070 if (!preconfig_exit_requested) {
4071 error_report("'preconfig' and 'daemonize' options are "
4072 "mutually exclusive");
4073 exit(EXIT_FAILURE);
4074 }
4075
4076 /* According to documentation and historically, -nographic redirects
4077 * serial port, parallel port and monitor to stdio, which does not work
4078 * with -daemonize. We can redirect these to null instead, but since
4079 * -nographic is legacy, let's just error out.
4080 * We disallow -nographic only if all other ports are not redirected
4081 * explicitly, to not break existing legacy setups which uses
4082 * -nographic _and_ redirects all ports explicitly - this is valid
4083 * usage, -nographic is just a no-op in this case.
4084 */
4085 if (nographic
4086 && (default_parallel || default_serial || default_monitor)) {
4087 error_report("-nographic cannot be used with -daemonize");
4088 exit(1);
4089 }
4090 #ifdef CONFIG_CURSES
4091 if (dpy.type == DISPLAY_TYPE_CURSES) {
4092 error_report("curses display cannot be used with -daemonize");
4093 exit(1);
4094 }
4095 #endif
4096 }
4097
4098 if (nographic) {
4099 if (default_parallel)
4100 add_device_config(DEV_PARALLEL, "null");
4101 if (default_serial && default_monitor) {
4102 add_device_config(DEV_SERIAL, "mon:stdio");
4103 } else {
4104 if (default_serial)
4105 add_device_config(DEV_SERIAL, "stdio");
4106 if (default_monitor)
4107 monitor_parse("stdio", "readline", false);
4108 }
4109 } else {
4110 if (default_serial)
4111 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4112 if (default_parallel)
4113 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4114 if (default_monitor)
4115 monitor_parse("vc:80Cx24C", "readline", false);
4116 }
4117
4118 #if defined(CONFIG_VNC)
4119 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4120 display_remote++;
4121 }
4122 #endif
4123 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4124 if (!qemu_display_find_default(&dpy)) {
4125 dpy.type = DISPLAY_TYPE_NONE;
4126 #if defined(CONFIG_VNC)
4127 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4128 #endif
4129 }
4130 }
4131 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4132 dpy.type = DISPLAY_TYPE_NONE;
4133 }
4134
4135 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4136 error_report("-alt-grab and -ctrl-grab are only valid "
4137 "for SDL, ignoring option");
4138 }
4139 if (dpy.has_window_close &&
4140 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4141 error_report("-no-quit is only valid for GTK and SDL, "
4142 "ignoring option");
4143 }
4144
4145 qemu_display_early_init(&dpy);
4146 qemu_console_early_init();
4147
4148 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4149 #if defined(CONFIG_OPENGL)
4150 error_report("OpenGL is not supported by the display");
4151 #else
4152 error_report("OpenGL support is disabled");
4153 #endif
4154 exit(1);
4155 }
4156
4157 page_size_init();
4158 socket_init();
4159
4160 qemu_opts_foreach(qemu_find_opts("object"),
4161 user_creatable_add_opts_foreach,
4162 object_create_initial, &error_fatal);
4163
4164 qemu_opts_foreach(qemu_find_opts("chardev"),
4165 chardev_init_func, NULL, &error_fatal);
4166 /* now chardevs have been created we may have semihosting to connect */
4167 qemu_semihosting_connect_chardevs();
4168
4169 #ifdef CONFIG_VIRTFS
4170 qemu_opts_foreach(qemu_find_opts("fsdev"),
4171 fsdev_init_func, NULL, &error_fatal);
4172 #endif
4173
4174 if (qemu_opts_foreach(qemu_find_opts("device"),
4175 device_help_func, NULL, NULL)) {
4176 exit(0);
4177 }
4178
4179 /*
4180 * Note: we need to create block backends before
4181 * machine_set_property(), so machine properties can refer to
4182 * them.
4183 */
4184 configure_blockdev(&bdo_queue, machine_class, snapshot);
4185
4186 machine_opts = qemu_get_machine_opts();
4187 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4188 &error_fatal);
4189 current_machine->ram_size = ram_size;
4190 current_machine->maxram_size = maxram_size;
4191 current_machine->ram_slots = ram_slots;
4192
4193 /*
4194 * Note: uses machine properties such as kernel-irqchip, must run
4195 * after machine_set_property().
4196 */
4197 configure_accelerator(current_machine, argv[0]);
4198
4199 /*
4200 * Beware, QOM objects created before this point miss global and
4201 * compat properties.
4202 *
4203 * Global properties get set up by qdev_prop_register_global(),
4204 * called from user_register_global_props(), and certain option
4205 * desugaring. Also in CPU feature desugaring (buried in
4206 * parse_cpu_option()), which happens below this point, but may
4207 * only target the CPU type, which can only be created after
4208 * parse_cpu_option() returned the type.
4209 *
4210 * Machine compat properties: object_set_machine_compat_props().
4211 * Accelerator compat props: object_set_accelerator_compat_props(),
4212 * called from configure_accelerator().
4213 */
4214
4215 if (!qtest_enabled() && machine_class->deprecation_reason) {
4216 error_report("Machine type '%s' is deprecated: %s",
4217 machine_class->name, machine_class->deprecation_reason);
4218 }
4219
4220 /*
4221 * Note: creates a QOM object, must run only after global and
4222 * compat properties have been set up.
4223 */
4224 migration_object_init();
4225
4226 if (qtest_chrdev) {
4227 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4228 }
4229
4230 machine_opts = qemu_get_machine_opts();
4231 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4232 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4233 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4234 bios_name = qemu_opt_get(machine_opts, "firmware");
4235
4236 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4237 if (opts) {
4238 boot_order = qemu_opt_get(opts, "order");
4239 if (boot_order) {
4240 validate_bootdevices(boot_order, &error_fatal);
4241 }
4242
4243 boot_once = qemu_opt_get(opts, "once");
4244 if (boot_once) {
4245 validate_bootdevices(boot_once, &error_fatal);
4246 }
4247
4248 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4249 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4250 }
4251
4252 if (!boot_order) {
4253 boot_order = machine_class->default_boot_order;
4254 }
4255
4256 if (!kernel_cmdline) {
4257 kernel_cmdline = "";
4258 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4259 }
4260
4261 linux_boot = (kernel_filename != NULL);
4262
4263 if (!linux_boot && *kernel_cmdline != '\0') {
4264 error_report("-append only allowed with -kernel option");
4265 exit(1);
4266 }
4267
4268 if (!linux_boot && initrd_filename != NULL) {
4269 error_report("-initrd only allowed with -kernel option");
4270 exit(1);
4271 }
4272
4273 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4274 /* fall back to the -kernel/-append */
4275 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4276 }
4277
4278 os_set_line_buffering();
4279
4280 /* spice needs the timers to be initialized by this point */
4281 qemu_spice_init();
4282
4283 cpu_ticks_init();
4284 if (icount_opts) {
4285 if (!tcg_enabled()) {
4286 error_report("-icount is not allowed with hardware virtualization");
4287 exit(1);
4288 }
4289 configure_icount(icount_opts, &error_abort);
4290 qemu_opts_del(icount_opts);
4291 }
4292
4293 if (tcg_enabled()) {
4294 qemu_tcg_configure(accel_opts, &error_fatal);
4295 }
4296
4297 if (default_net) {
4298 QemuOptsList *net = qemu_find_opts("net");
4299 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4300 #ifdef CONFIG_SLIRP
4301 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4302 #endif
4303 }
4304
4305 if (net_init_clients(&err) < 0) {
4306 error_report_err(err);
4307 exit(1);
4308 }
4309
4310 qemu_opts_foreach(qemu_find_opts("object"),
4311 user_creatable_add_opts_foreach,
4312 object_create_delayed, &error_fatal);
4313
4314 tpm_init();
4315
4316 /* init the bluetooth world */
4317 if (foreach_device_config(DEV_BT, bt_parse))
4318 exit(1);
4319
4320 if (!xen_enabled()) {
4321 /* On 32-bit hosts, QEMU is limited by virtual address space */
4322 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4323 error_report("at most 2047 MB RAM can be simulated");
4324 exit(1);
4325 }
4326 }
4327
4328 blk_mig_init();
4329 ram_mig_init();
4330 dirty_bitmap_mig_init();
4331
4332 qemu_opts_foreach(qemu_find_opts("mon"),
4333 mon_init_func, NULL, &error_fatal);
4334
4335 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4336 exit(1);
4337 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4338 exit(1);
4339 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4340 exit(1);
4341
4342 /* If no default VGA is requested, the default is "none". */
4343 if (default_vga) {
4344 vga_model = get_default_vga_model(machine_class);
4345 }
4346 if (vga_model) {
4347 select_vgahw(machine_class, vga_model);
4348 }
4349
4350 if (watchdog) {
4351 i = select_watchdog(watchdog);
4352 if (i > 0)
4353 exit (i == 1 ? 1 : 0);
4354 }
4355
4356 /* This checkpoint is required by replay to separate prior clock
4357 reading from the other reads, because timer polling functions query
4358 clock values from the log. */
4359 replay_checkpoint(CHECKPOINT_INIT);
4360 qdev_machine_init();
4361
4362 current_machine->boot_order = boot_order;
4363
4364 /* parse features once if machine provides default cpu_type */
4365 current_machine->cpu_type = machine_class->default_cpu_type;
4366 if (cpu_option) {
4367 current_machine->cpu_type = parse_cpu_option(cpu_option);
4368 }
4369 parse_numa_opts(current_machine);
4370
4371 /* do monitor/qmp handling at preconfig state if requested */
4372 main_loop();
4373
4374 audio_init_audiodevs();
4375
4376 /* from here on runstate is RUN_STATE_PRELAUNCH */
4377 machine_run_board_init(current_machine);
4378
4379 realtime_init();
4380
4381 soundhw_init();
4382
4383 if (hax_enabled()) {
4384 hax_sync_vcpus();
4385 }
4386
4387 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4388 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4389
4390 /* init USB devices */
4391 if (machine_usb(current_machine)) {
4392 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4393 exit(1);
4394 }
4395
4396 /* Check if IGD GFX passthrough. */
4397 igd_gfx_passthru();
4398
4399 /* init generic devices */
4400 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4401 qemu_opts_foreach(qemu_find_opts("device"),
4402 device_init_func, NULL, &error_fatal);
4403
4404 cpu_synchronize_all_post_init();
4405
4406 rom_reset_order_override();
4407
4408 /* Did we create any drives that we failed to create a device for? */
4409 drive_check_orphaned();
4410
4411 /* Don't warn about the default network setup that you get if
4412 * no command line -net or -netdev options are specified. There
4413 * are two cases that we would otherwise complain about:
4414 * (1) board doesn't support a NIC but the implicit "-net nic"
4415 * requested one
4416 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4417 * sets up a nic that isn't connected to anything.
4418 */
4419 if (!default_net && (!qtest_enabled() || has_defaults)) {
4420 net_check_clients();
4421 }
4422
4423 if (boot_once) {
4424 qemu_boot_set(boot_once, &error_fatal);
4425 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4426 }
4427
4428 /* init local displays */
4429 ds = init_displaystate();
4430 qemu_display_init(ds, &dpy);
4431
4432 /* must be after terminal init, SDL library changes signal handlers */
4433 os_setup_signal_handling();
4434
4435 /* init remote displays */
4436 #ifdef CONFIG_VNC
4437 qemu_opts_foreach(qemu_find_opts("vnc"),
4438 vnc_init_func, NULL, &error_fatal);
4439 #endif
4440
4441 if (using_spice) {
4442 qemu_spice_display_init();
4443 }
4444
4445 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4446 exit(1);
4447 }
4448
4449 qdev_machine_creation_done();
4450
4451 /* TODO: once all bus devices are qdevified, this should be done
4452 * when bus is created by qdev.c */
4453 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4454 qemu_run_machine_init_done_notifiers();
4455
4456 if (rom_check_and_register_reset() != 0) {
4457 error_report("rom check and register reset failed");
4458 exit(1);
4459 }
4460
4461 replay_start();
4462
4463 /* This checkpoint is required by replay to separate prior clock
4464 reading from the other reads, because timer polling functions query
4465 clock values from the log. */
4466 replay_checkpoint(CHECKPOINT_RESET);
4467 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4468 register_global_state();
4469 if (loadvm) {
4470 Error *local_err = NULL;
4471 if (load_snapshot(loadvm, &local_err) < 0) {
4472 error_report_err(local_err);
4473 autostart = 0;
4474 exit(1);
4475 }
4476 }
4477 if (replay_mode != REPLAY_MODE_NONE) {
4478 replay_vmstate_init();
4479 }
4480
4481 qdev_prop_check_globals();
4482 if (vmstate_dump_file) {
4483 /* dump and exit */
4484 dump_vmstate_json_to_file(vmstate_dump_file);
4485 return 0;
4486 }
4487
4488 if (incoming) {
4489 Error *local_err = NULL;
4490 qemu_start_incoming_migration(incoming, &local_err);
4491 if (local_err) {
4492 error_reportf_err(local_err, "-incoming %s: ", incoming);
4493 exit(1);
4494 }
4495 } else if (autostart) {
4496 vm_start();
4497 }
4498
4499 accel_setup_post(current_machine);
4500 os_setup_post();
4501
4502 main_loop();
4503
4504 gdbserver_cleanup();
4505
4506 /*
4507 * cleaning up the migration object cancels any existing migration
4508 * try to do this early so that it also stops using devices.
4509 */
4510 migration_shutdown();
4511
4512 /* No more vcpu or device emulation activity beyond this point */
4513 vm_shutdown();
4514
4515 job_cancel_sync_all();
4516 bdrv_close_all();
4517
4518 res_free();
4519
4520 /* vhost-user must be cleaned up before chardevs. */
4521 tpm_cleanup();
4522 net_cleanup();
4523 audio_cleanup();
4524 monitor_cleanup();
4525 qemu_chr_cleanup();
4526 user_creatable_cleanup();
4527 /* TODO: unref root container, check all devices are ok */
4528
4529 return 0;
4530 }
AR7 emulation for QEMU