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intel_iommu: add scalable-mode option to make scalable mode work
[qemu.git] / vl.c
blob027b853d9250f55a600e88146c30b9435f21a62e
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/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
33
34 #ifdef CONFIG_SDL
35 #if defined(__APPLE__) || defined(main)
36 #include <SDL.h>
37 int qemu_main(int argc, char **argv, char **envp);
38 int main(int argc, char **argv)
39 {
40 return qemu_main(argc, argv, NULL);
41 }
42 #undef main
43 #define main qemu_main
44 #endif
45 #endif /* CONFIG_SDL */
46
47 #ifdef CONFIG_COCOA
48 #undef main
49 #define main qemu_main
50 #endif /* CONFIG_COCOA */
51
52
53 #include "qemu/error-report.h"
54 #include "qemu/sockets.h"
55 #include "hw/hw.h"
56 #include "hw/boards.h"
57 #include "sysemu/accel.h"
58 #include "hw/usb.h"
59 #include "hw/isa/isa.h"
60 #include "hw/scsi/scsi.h"
61 #include "hw/display/vga.h"
62 #include "hw/bt.h"
63 #include "sysemu/watchdog.h"
64 #include "hw/firmware/smbios.h"
65 #include "hw/acpi/acpi.h"
66 #include "hw/xen/xen.h"
67 #include "hw/qdev.h"
68 #include "hw/loader.h"
69 #include "monitor/qdev.h"
70 #include "sysemu/bt.h"
71 #include "net/net.h"
72 #include "net/slirp.h"
73 #include "monitor/monitor.h"
74 #include "ui/console.h"
75 #include "ui/input.h"
76 #include "sysemu/sysemu.h"
77 #include "sysemu/numa.h"
78 #include "exec/gdbstub.h"
79 #include "qemu/timer.h"
80 #include "chardev/char.h"
81 #include "qemu/bitmap.h"
82 #include "qemu/log.h"
83 #include "sysemu/blockdev.h"
84 #include "hw/block/block.h"
85 #include "migration/misc.h"
86 #include "migration/snapshot.h"
87 #include "migration/global_state.h"
88 #include "sysemu/tpm.h"
89 #include "sysemu/dma.h"
90 #include "hw/audio/soundhw.h"
91 #include "audio/audio.h"
92 #include "sysemu/cpus.h"
93 #include "migration/colo.h"
94 #include "migration/postcopy-ram.h"
95 #include "sysemu/kvm.h"
96 #include "sysemu/hax.h"
97 #include "qapi/qobject-input-visitor.h"
98 #include "qemu/option.h"
99 #include "qemu/config-file.h"
100 #include "qemu-options.h"
101 #include "qemu/main-loop.h"
102 #ifdef CONFIG_VIRTFS
103 #include "fsdev/qemu-fsdev.h"
104 #endif
105 #include "sysemu/qtest.h"
106
107 #include "disas/disas.h"
108
109 #include "trace-root.h"
110 #include "trace/control.h"
111 #include "qemu/queue.h"
112 #include "sysemu/arch_init.h"
113
114 #include "ui/qemu-spice.h"
115 #include "qapi/string-input-visitor.h"
116 #include "qapi/opts-visitor.h"
117 #include "qapi/clone-visitor.h"
118 #include "qom/object_interfaces.h"
119 #include "exec/semihost.h"
120 #include "crypto/init.h"
121 #include "sysemu/replay.h"
122 #include "qapi/qapi-events-run-state.h"
123 #include "qapi/qapi-visit-block-core.h"
124 #include "qapi/qapi-visit-ui.h"
125 #include "qapi/qapi-commands-block-core.h"
126 #include "qapi/qapi-commands-misc.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
132 #define MAX_VIRTIO_CONSOLES 1
133
134 static const char *data_dir[16];
135 static int data_dir_idx;
136 const char *bios_name = NULL;
137 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
138 int display_opengl;
139 const char* keyboard_layout = NULL;
140 ram_addr_t ram_size;
141 const char *mem_path = NULL;
142 int mem_prealloc = 0; /* force preallocation of physical target memory */
143 bool enable_mlock = false;
144 bool enable_cpu_pm = false;
145 int nb_nics;
146 NICInfo nd_table[MAX_NICS];
147 int autostart;
148 static enum {
149 RTC_BASE_UTC,
150 RTC_BASE_LOCALTIME,
151 RTC_BASE_DATETIME,
152 } rtc_base_type = RTC_BASE_UTC;
153 static time_t rtc_ref_start_datetime;
154 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
155 static int rtc_host_datetime_offset = -1; /* valid & used only with
156 RTC_BASE_DATETIME */
157 QEMUClockType rtc_clock;
158 int vga_interface_type = VGA_NONE;
159 static DisplayOptions dpy;
160 static int num_serial_hds;
161 static Chardev **serial_hds;
162 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
163 int win2k_install_hack = 0;
164 int singlestep = 0;
165 int smp_cpus;
166 unsigned int max_cpus;
167 int smp_cores = 1;
168 int smp_threads = 1;
169 int acpi_enabled = 1;
170 int no_hpet = 0;
171 int fd_bootchk = 1;
172 static int no_reboot;
173 int no_shutdown = 0;
174 int cursor_hide = 1;
175 int graphic_rotate = 0;
176 const char *watchdog;
177 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
178 int nb_option_roms;
179 int old_param = 0;
180 const char *qemu_name;
181 int alt_grab = 0;
182 int ctrl_grab = 0;
183 unsigned int nb_prom_envs = 0;
184 const char *prom_envs[MAX_PROM_ENVS];
185 int boot_menu;
186 bool boot_strict;
187 uint8_t *boot_splash_filedata;
188 bool wakeup_suspend_enabled;
189
190 int icount_align_option;
191
192 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
193 * little-endian "wire format" described in the SMBIOS 2.6 specification.
194 */
195 QemuUUID qemu_uuid;
196 bool qemu_uuid_set;
197
198 static NotifierList exit_notifiers =
199 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
200
201 static NotifierList machine_init_done_notifiers =
202 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
203
204 bool xen_allowed;
205 uint32_t xen_domid;
206 enum xen_mode xen_mode = XEN_EMULATE;
207 bool xen_domid_restrict;
208
209 static int has_defaults = 1;
210 static int default_serial = 1;
211 static int default_parallel = 1;
212 static int default_monitor = 1;
213 static int default_floppy = 1;
214 static int default_cdrom = 1;
215 static int default_sdcard = 1;
216 static int default_vga = 1;
217 static int default_net = 1;
218
219 static struct {
220 const char *driver;
221 int *flag;
222 } default_list[] = {
223 { .driver = "isa-serial", .flag = &default_serial },
224 { .driver = "isa-parallel", .flag = &default_parallel },
225 { .driver = "isa-fdc", .flag = &default_floppy },
226 { .driver = "floppy", .flag = &default_floppy },
227 { .driver = "ide-cd", .flag = &default_cdrom },
228 { .driver = "ide-hd", .flag = &default_cdrom },
229 { .driver = "ide-drive", .flag = &default_cdrom },
230 { .driver = "scsi-cd", .flag = &default_cdrom },
231 { .driver = "scsi-hd", .flag = &default_cdrom },
232 { .driver = "VGA", .flag = &default_vga },
233 { .driver = "isa-vga", .flag = &default_vga },
234 { .driver = "cirrus-vga", .flag = &default_vga },
235 { .driver = "isa-cirrus-vga", .flag = &default_vga },
236 { .driver = "vmware-svga", .flag = &default_vga },
237 { .driver = "qxl-vga", .flag = &default_vga },
238 { .driver = "virtio-vga", .flag = &default_vga },
239 { .driver = "ati-vga", .flag = &default_vga },
240 };
241
242 static QemuOptsList qemu_rtc_opts = {
243 .name = "rtc",
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
245 .merge_lists = true,
246 .desc = {
247 {
248 .name = "base",
249 .type = QEMU_OPT_STRING,
250 },{
251 .name = "clock",
252 .type = QEMU_OPT_STRING,
253 },{
254 .name = "driftfix",
255 .type = QEMU_OPT_STRING,
256 },
257 { /* end of list */ }
258 },
259 };
260
261 static QemuOptsList qemu_option_rom_opts = {
262 .name = "option-rom",
263 .implied_opt_name = "romfile",
264 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
265 .desc = {
266 {
267 .name = "bootindex",
268 .type = QEMU_OPT_NUMBER,
269 }, {
270 .name = "romfile",
271 .type = QEMU_OPT_STRING,
272 },
273 { /* end of list */ }
274 },
275 };
276
277 static QemuOptsList qemu_machine_opts = {
278 .name = "machine",
279 .implied_opt_name = "type",
280 .merge_lists = true,
281 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
282 .desc = {
283 /*
284 * no elements => accept any
285 * sanity checking will happen later
286 * when setting machine properties
287 */
288 { }
289 },
290 };
291
292 static QemuOptsList qemu_accel_opts = {
293 .name = "accel",
294 .implied_opt_name = "accel",
295 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
296 .merge_lists = true,
297 .desc = {
298 {
299 .name = "accel",
300 .type = QEMU_OPT_STRING,
301 .help = "Select the type of accelerator",
302 },
303 {
304 .name = "thread",
305 .type = QEMU_OPT_STRING,
306 .help = "Enable/disable multi-threaded TCG",
307 },
308 { /* end of list */ }
309 },
310 };
311
312 static QemuOptsList qemu_boot_opts = {
313 .name = "boot-opts",
314 .implied_opt_name = "order",
315 .merge_lists = true,
316 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
317 .desc = {
318 {
319 .name = "order",
320 .type = QEMU_OPT_STRING,
321 }, {
322 .name = "once",
323 .type = QEMU_OPT_STRING,
324 }, {
325 .name = "menu",
326 .type = QEMU_OPT_BOOL,
327 }, {
328 .name = "splash",
329 .type = QEMU_OPT_STRING,
330 }, {
331 .name = "splash-time",
332 .type = QEMU_OPT_NUMBER,
333 }, {
334 .name = "reboot-timeout",
335 .type = QEMU_OPT_NUMBER,
336 }, {
337 .name = "strict",
338 .type = QEMU_OPT_BOOL,
339 },
340 { /*End of list */ }
341 },
342 };
343
344 static QemuOptsList qemu_add_fd_opts = {
345 .name = "add-fd",
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
347 .desc = {
348 {
349 .name = "fd",
350 .type = QEMU_OPT_NUMBER,
351 .help = "file descriptor of which a duplicate is added to fd set",
352 },{
353 .name = "set",
354 .type = QEMU_OPT_NUMBER,
355 .help = "ID of the fd set to add fd to",
356 },{
357 .name = "opaque",
358 .type = QEMU_OPT_STRING,
359 .help = "free-form string used to describe fd",
360 },
361 { /* end of list */ }
362 },
363 };
364
365 static QemuOptsList qemu_object_opts = {
366 .name = "object",
367 .implied_opt_name = "qom-type",
368 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
369 .desc = {
370 { }
371 },
372 };
373
374 static QemuOptsList qemu_tpmdev_opts = {
375 .name = "tpmdev",
376 .implied_opt_name = "type",
377 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
378 .desc = {
379 /* options are defined in the TPM backends */
380 { /* end of list */ }
381 },
382 };
383
384 static QemuOptsList qemu_realtime_opts = {
385 .name = "realtime",
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
387 .desc = {
388 {
389 .name = "mlock",
390 .type = QEMU_OPT_BOOL,
391 },
392 { /* end of list */ }
393 },
394 };
395
396 static QemuOptsList qemu_overcommit_opts = {
397 .name = "overcommit",
398 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
399 .desc = {
400 {
401 .name = "mem-lock",
402 .type = QEMU_OPT_BOOL,
403 },
404 {
405 .name = "cpu-pm",
406 .type = QEMU_OPT_BOOL,
407 },
408 { /* end of list */ }
409 },
410 };
411
412 static QemuOptsList qemu_msg_opts = {
413 .name = "msg",
414 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
415 .desc = {
416 {
417 .name = "timestamp",
418 .type = QEMU_OPT_BOOL,
419 },
420 { /* end of list */ }
421 },
422 };
423
424 static QemuOptsList qemu_name_opts = {
425 .name = "name",
426 .implied_opt_name = "guest",
427 .merge_lists = true,
428 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
429 .desc = {
430 {
431 .name = "guest",
432 .type = QEMU_OPT_STRING,
433 .help = "Sets the name of the guest.\n"
434 "This name will be displayed in the SDL window caption.\n"
435 "The name will also be used for the VNC server",
436 }, {
437 .name = "process",
438 .type = QEMU_OPT_STRING,
439 .help = "Sets the name of the QEMU process, as shown in top etc",
440 }, {
441 .name = "debug-threads",
442 .type = QEMU_OPT_BOOL,
443 .help = "When enabled, name the individual threads; defaults off.\n"
444 "NOTE: The thread names are for debugging and not a\n"
445 "stable API.",
446 },
447 { /* End of list */ }
448 },
449 };
450
451 static QemuOptsList qemu_mem_opts = {
452 .name = "memory",
453 .implied_opt_name = "size",
454 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
455 .merge_lists = true,
456 .desc = {
457 {
458 .name = "size",
459 .type = QEMU_OPT_SIZE,
460 },
461 {
462 .name = "slots",
463 .type = QEMU_OPT_NUMBER,
464 },
465 {
466 .name = "maxmem",
467 .type = QEMU_OPT_SIZE,
468 },
469 { /* end of list */ }
470 },
471 };
472
473 static QemuOptsList qemu_icount_opts = {
474 .name = "icount",
475 .implied_opt_name = "shift",
476 .merge_lists = true,
477 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
478 .desc = {
479 {
480 .name = "shift",
481 .type = QEMU_OPT_STRING,
482 }, {
483 .name = "align",
484 .type = QEMU_OPT_BOOL,
485 }, {
486 .name = "sleep",
487 .type = QEMU_OPT_BOOL,
488 }, {
489 .name = "rr",
490 .type = QEMU_OPT_STRING,
491 }, {
492 .name = "rrfile",
493 .type = QEMU_OPT_STRING,
494 }, {
495 .name = "rrsnapshot",
496 .type = QEMU_OPT_STRING,
497 },
498 { /* end of list */ }
499 },
500 };
501
502 static QemuOptsList qemu_semihosting_config_opts = {
503 .name = "semihosting-config",
504 .implied_opt_name = "enable",
505 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
506 .desc = {
507 {
508 .name = "enable",
509 .type = QEMU_OPT_BOOL,
510 }, {
511 .name = "target",
512 .type = QEMU_OPT_STRING,
513 }, {
514 .name = "arg",
515 .type = QEMU_OPT_STRING,
516 },
517 { /* end of list */ }
518 },
519 };
520
521 static QemuOptsList qemu_fw_cfg_opts = {
522 .name = "fw_cfg",
523 .implied_opt_name = "name",
524 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
525 .desc = {
526 {
527 .name = "name",
528 .type = QEMU_OPT_STRING,
529 .help = "Sets the fw_cfg name of the blob to be inserted",
530 }, {
531 .name = "file",
532 .type = QEMU_OPT_STRING,
533 .help = "Sets the name of the file from which "
534 "the fw_cfg blob will be loaded",
535 }, {
536 .name = "string",
537 .type = QEMU_OPT_STRING,
538 .help = "Sets content of the blob to be inserted from a string",
539 },
540 { /* end of list */ }
541 },
542 };
543
544 /**
545 * Get machine options
546 *
547 * Returns: machine options (never null).
548 */
549 QemuOpts *qemu_get_machine_opts(void)
550 {
551 return qemu_find_opts_singleton("machine");
552 }
553
554 const char *qemu_get_vm_name(void)
555 {
556 return qemu_name;
557 }
558
559 static void res_free(void)
560 {
561 g_free(boot_splash_filedata);
562 boot_splash_filedata = NULL;
563 }
564
565 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
566 {
567 const char *driver = qemu_opt_get(opts, "driver");
568 int i;
569
570 if (!driver)
571 return 0;
572 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
573 if (strcmp(default_list[i].driver, driver) != 0)
574 continue;
575 *(default_list[i].flag) = 0;
576 }
577 return 0;
578 }
579
580 /***********************************************************/
581 /* QEMU state */
582
583 static RunState current_run_state = RUN_STATE_PRECONFIG;
584
585 /* We use RUN_STATE__MAX but any invalid value will do */
586 static RunState vmstop_requested = RUN_STATE__MAX;
587 static QemuMutex vmstop_lock;
588
589 typedef struct {
590 RunState from;
591 RunState to;
592 } RunStateTransition;
593
594 static const RunStateTransition runstate_transitions_def[] = {
595 /* from -> to */
596 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
597 /* Early switch to inmigrate state to allow -incoming CLI option work
598 * as it used to. TODO: delay actual switching to inmigrate state to
599 * the point after machine is built and remove this hack.
600 */
601 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
602
603 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
604 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
605 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
606
607 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
608 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
609 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
610 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
611 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
612 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
613 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
614 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
615 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
616 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
617 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
618 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
619
620 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
621 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
623
624 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
625 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
626 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
627
628 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
629 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
630 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
631 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
632 { RUN_STATE_PAUSED, RUN_STATE_COLO},
633
634 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
635 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
636 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
637
638 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
639 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
640 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
641
642 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
643 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
644 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
645 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
646 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
647
648 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
649 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
650
651 { RUN_STATE_COLO, RUN_STATE_RUNNING },
652
653 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
654 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
655 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
656 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
657 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
658 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
659 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
660 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
661 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
662 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
663 { RUN_STATE_RUNNING, RUN_STATE_COLO},
664
665 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
666
667 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
668 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
669 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
670
671 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
672 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
673 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
674 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
675 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
676 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
677
678 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
679 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
680 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
681 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
682
683 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
684 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
685 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
686
687 { RUN_STATE__MAX, RUN_STATE__MAX },
688 };
689
690 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
691
692 bool runstate_check(RunState state)
693 {
694 return current_run_state == state;
695 }
696
697 bool runstate_store(char *str, size_t size)
698 {
699 const char *state = RunState_str(current_run_state);
700 size_t len = strlen(state) + 1;
701
702 if (len > size) {
703 return false;
704 }
705 memcpy(str, state, len);
706 return true;
707 }
708
709 static void runstate_init(void)
710 {
711 const RunStateTransition *p;
712
713 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
714 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
715 runstate_valid_transitions[p->from][p->to] = true;
716 }
717
718 qemu_mutex_init(&vmstop_lock);
719 }
720
721 /* This function will abort() on invalid state transitions */
722 void runstate_set(RunState new_state)
723 {
724 assert(new_state < RUN_STATE__MAX);
725
726 trace_runstate_set(current_run_state, RunState_str(current_run_state),
727 new_state, RunState_str(current_run_state));
728
729 if (current_run_state == new_state) {
730 return;
731 }
732
733 if (!runstate_valid_transitions[current_run_state][new_state]) {
734 error_report("invalid runstate transition: '%s' -> '%s'",
735 RunState_str(current_run_state),
736 RunState_str(new_state));
737 abort();
738 }
739
740 current_run_state = new_state;
741 }
742
743 int runstate_is_running(void)
744 {
745 return runstate_check(RUN_STATE_RUNNING);
746 }
747
748 bool runstate_needs_reset(void)
749 {
750 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
751 runstate_check(RUN_STATE_SHUTDOWN);
752 }
753
754 StatusInfo *qmp_query_status(Error **errp)
755 {
756 StatusInfo *info = g_malloc0(sizeof(*info));
757
758 info->running = runstate_is_running();
759 info->singlestep = singlestep;
760 info->status = current_run_state;
761
762 return info;
763 }
764
765 bool qemu_vmstop_requested(RunState *r)
766 {
767 qemu_mutex_lock(&vmstop_lock);
768 *r = vmstop_requested;
769 vmstop_requested = RUN_STATE__MAX;
770 qemu_mutex_unlock(&vmstop_lock);
771 return *r < RUN_STATE__MAX;
772 }
773
774 void qemu_system_vmstop_request_prepare(void)
775 {
776 qemu_mutex_lock(&vmstop_lock);
777 }
778
779 void qemu_system_vmstop_request(RunState state)
780 {
781 vmstop_requested = state;
782 qemu_mutex_unlock(&vmstop_lock);
783 qemu_notify_event();
784 }
785
786 /***********************************************************/
787 /* RTC reference time/date access */
788 static time_t qemu_ref_timedate(QEMUClockType clock)
789 {
790 time_t value = qemu_clock_get_ms(clock) / 1000;
791 switch (clock) {
792 case QEMU_CLOCK_REALTIME:
793 value -= rtc_realtime_clock_offset;
794 /* no break */
795 case QEMU_CLOCK_VIRTUAL:
796 value += rtc_ref_start_datetime;
797 break;
798 case QEMU_CLOCK_HOST:
799 if (rtc_base_type == RTC_BASE_DATETIME) {
800 value -= rtc_host_datetime_offset;
801 }
802 break;
803 default:
804 assert(0);
805 }
806 return value;
807 }
808
809 void qemu_get_timedate(struct tm *tm, int offset)
810 {
811 time_t ti = qemu_ref_timedate(rtc_clock);
812
813 ti += offset;
814
815 switch (rtc_base_type) {
816 case RTC_BASE_DATETIME:
817 case RTC_BASE_UTC:
818 gmtime_r(&ti, tm);
819 break;
820 case RTC_BASE_LOCALTIME:
821 localtime_r(&ti, tm);
822 break;
823 }
824 }
825
826 int qemu_timedate_diff(struct tm *tm)
827 {
828 time_t seconds;
829
830 switch (rtc_base_type) {
831 case RTC_BASE_DATETIME:
832 case RTC_BASE_UTC:
833 seconds = mktimegm(tm);
834 break;
835 case RTC_BASE_LOCALTIME:
836 {
837 struct tm tmp = *tm;
838 tmp.tm_isdst = -1; /* use timezone to figure it out */
839 seconds = mktime(&tmp);
840 break;
841 }
842 default:
843 abort();
844 }
845
846 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
847 }
848
849 static void configure_rtc_base_datetime(const char *startdate)
850 {
851 time_t rtc_start_datetime;
852 struct tm tm;
853
854 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
855 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
856 /* OK */
857 } else if (sscanf(startdate, "%d-%d-%d",
858 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
859 tm.tm_hour = 0;
860 tm.tm_min = 0;
861 tm.tm_sec = 0;
862 } else {
863 goto date_fail;
864 }
865 tm.tm_year -= 1900;
866 tm.tm_mon--;
867 rtc_start_datetime = mktimegm(&tm);
868 if (rtc_start_datetime == -1) {
869 date_fail:
870 error_report("invalid datetime format");
871 error_printf("valid formats: "
872 "'2006-06-17T16:01:21' or '2006-06-17'\n");
873 exit(1);
874 }
875 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
876 rtc_ref_start_datetime = rtc_start_datetime;
877 }
878
879 static void configure_rtc(QemuOpts *opts)
880 {
881 const char *value;
882
883 /* Set defaults */
884 rtc_clock = QEMU_CLOCK_HOST;
885 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
886 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
887
888 value = qemu_opt_get(opts, "base");
889 if (value) {
890 if (!strcmp(value, "utc")) {
891 rtc_base_type = RTC_BASE_UTC;
892 } else if (!strcmp(value, "localtime")) {
893 Error *blocker = NULL;
894 rtc_base_type = RTC_BASE_LOCALTIME;
895 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
896 "-rtc base=localtime");
897 replay_add_blocker(blocker);
898 } else {
899 rtc_base_type = RTC_BASE_DATETIME;
900 configure_rtc_base_datetime(value);
901 }
902 }
903 value = qemu_opt_get(opts, "clock");
904 if (value) {
905 if (!strcmp(value, "host")) {
906 rtc_clock = QEMU_CLOCK_HOST;
907 } else if (!strcmp(value, "rt")) {
908 rtc_clock = QEMU_CLOCK_REALTIME;
909 } else if (!strcmp(value, "vm")) {
910 rtc_clock = QEMU_CLOCK_VIRTUAL;
911 } else {
912 error_report("invalid option value '%s'", value);
913 exit(1);
914 }
915 }
916 value = qemu_opt_get(opts, "driftfix");
917 if (value) {
918 if (!strcmp(value, "slew")) {
919 static GlobalProperty slew_lost_ticks = {
920 .driver = "mc146818rtc",
921 .property = "lost_tick_policy",
922 .value = "slew",
923 };
924
925 qdev_prop_register_global(&slew_lost_ticks);
926 } else if (!strcmp(value, "none")) {
927 /* discard is default */
928 } else {
929 error_report("invalid option value '%s'", value);
930 exit(1);
931 }
932 }
933 }
934
935 /***********************************************************/
936 /* Bluetooth support */
937 static int nb_hcis;
938 static int cur_hci;
939 static struct HCIInfo *hci_table[MAX_NICS];
940
941 struct HCIInfo *qemu_next_hci(void)
942 {
943 if (cur_hci == nb_hcis)
944 return &null_hci;
945
946 return hci_table[cur_hci++];
947 }
948
949 static int bt_hci_parse(const char *str)
950 {
951 struct HCIInfo *hci;
952 bdaddr_t bdaddr;
953
954 if (nb_hcis >= MAX_NICS) {
955 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
956 return -1;
957 }
958
959 hci = hci_init(str);
960 if (!hci)
961 return -1;
962
963 bdaddr.b[0] = 0x52;
964 bdaddr.b[1] = 0x54;
965 bdaddr.b[2] = 0x00;
966 bdaddr.b[3] = 0x12;
967 bdaddr.b[4] = 0x34;
968 bdaddr.b[5] = 0x56 + nb_hcis;
969 hci->bdaddr_set(hci, bdaddr.b);
970
971 hci_table[nb_hcis++] = hci;
972
973 return 0;
974 }
975
976 static void bt_vhci_add(int vlan_id)
977 {
978 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
979
980 if (!vlan->slave)
981 warn_report("adding a VHCI to an empty scatternet %i",
982 vlan_id);
983
984 bt_vhci_init(bt_new_hci(vlan));
985 }
986
987 static struct bt_device_s *bt_device_add(const char *opt)
988 {
989 struct bt_scatternet_s *vlan;
990 int vlan_id = 0;
991 char *endp = strstr(opt, ",vlan=");
992 int len = (endp ? endp - opt : strlen(opt)) + 1;
993 char devname[10];
994
995 pstrcpy(devname, MIN(sizeof(devname), len), opt);
996
997 if (endp) {
998 vlan_id = strtol(endp + 6, &endp, 0);
999 if (*endp) {
1000 error_report("unrecognised bluetooth vlan Id");
1001 return 0;
1002 }
1003 }
1004
1005 vlan = qemu_find_bt_vlan(vlan_id);
1006
1007 if (!vlan->slave)
1008 warn_report("adding a slave device to an empty scatternet %i",
1009 vlan_id);
1010
1011 if (!strcmp(devname, "keyboard"))
1012 return bt_keyboard_init(vlan);
1013
1014 error_report("unsupported bluetooth device '%s'", devname);
1015 return 0;
1016 }
1017
1018 static int bt_parse(const char *opt)
1019 {
1020 const char *endp, *p;
1021 int vlan;
1022
1023 if (strstart(opt, "hci", &endp)) {
1024 if (!*endp || *endp == ',') {
1025 if (*endp)
1026 if (!strstart(endp, ",vlan=", 0))
1027 opt = endp + 1;
1028
1029 return bt_hci_parse(opt);
1030 }
1031 } else if (strstart(opt, "vhci", &endp)) {
1032 if (!*endp || *endp == ',') {
1033 if (*endp) {
1034 if (strstart(endp, ",vlan=", &p)) {
1035 vlan = strtol(p, (char **) &endp, 0);
1036 if (*endp) {
1037 error_report("bad scatternet '%s'", p);
1038 return 1;
1039 }
1040 } else {
1041 error_report("bad parameter '%s'", endp + 1);
1042 return 1;
1043 }
1044 } else
1045 vlan = 0;
1046
1047 bt_vhci_add(vlan);
1048 return 0;
1049 }
1050 } else if (strstart(opt, "device:", &endp))
1051 return !bt_device_add(endp);
1052
1053 error_report("bad bluetooth parameter '%s'", opt);
1054 return 1;
1055 }
1056
1057 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1058 {
1059 const char *proc_name;
1060
1061 if (qemu_opt_get(opts, "debug-threads")) {
1062 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1063 }
1064 qemu_name = qemu_opt_get(opts, "guest");
1065
1066 proc_name = qemu_opt_get(opts, "process");
1067 if (proc_name) {
1068 os_set_proc_name(proc_name);
1069 }
1070
1071 return 0;
1072 }
1073
1074 bool defaults_enabled(void)
1075 {
1076 return has_defaults;
1077 }
1078
1079 #ifndef _WIN32
1080 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1081 {
1082 int fd, dupfd, flags;
1083 int64_t fdset_id;
1084 const char *fd_opaque = NULL;
1085 AddfdInfo *fdinfo;
1086
1087 fd = qemu_opt_get_number(opts, "fd", -1);
1088 fdset_id = qemu_opt_get_number(opts, "set", -1);
1089 fd_opaque = qemu_opt_get(opts, "opaque");
1090
1091 if (fd < 0) {
1092 error_setg(errp, "fd option is required and must be non-negative");
1093 return -1;
1094 }
1095
1096 if (fd <= STDERR_FILENO) {
1097 error_setg(errp, "fd cannot be a standard I/O stream");
1098 return -1;
1099 }
1100
1101 /*
1102 * All fds inherited across exec() necessarily have FD_CLOEXEC
1103 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1104 */
1105 flags = fcntl(fd, F_GETFD);
1106 if (flags == -1 || (flags & FD_CLOEXEC)) {
1107 error_setg(errp, "fd is not valid or already in use");
1108 return -1;
1109 }
1110
1111 if (fdset_id < 0) {
1112 error_setg(errp, "set option is required and must be non-negative");
1113 return -1;
1114 }
1115
1116 #ifdef F_DUPFD_CLOEXEC
1117 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1118 #else
1119 dupfd = dup(fd);
1120 if (dupfd != -1) {
1121 qemu_set_cloexec(dupfd);
1122 }
1123 #endif
1124 if (dupfd == -1) {
1125 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1126 return -1;
1127 }
1128
1129 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1130 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1131 &error_abort);
1132 g_free(fdinfo);
1133
1134 return 0;
1135 }
1136
1137 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1138 {
1139 int fd;
1140
1141 fd = qemu_opt_get_number(opts, "fd", -1);
1142 close(fd);
1143
1144 return 0;
1145 }
1146 #endif
1147
1148 /***********************************************************/
1149 /* QEMU Block devices */
1150
1151 #define HD_OPTS "media=disk"
1152 #define CDROM_OPTS "media=cdrom"
1153 #define FD_OPTS ""
1154 #define PFLASH_OPTS ""
1155 #define MTD_OPTS ""
1156 #define SD_OPTS ""
1157
1158 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1159 {
1160 BlockInterfaceType *block_default_type = opaque;
1161
1162 return drive_new(opts, *block_default_type, errp) == NULL;
1163 }
1164
1165 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1166 {
1167 if (qemu_opt_get(opts, "snapshot") == NULL) {
1168 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1169 }
1170 return 0;
1171 }
1172
1173 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1174 int index, const char *optstr)
1175 {
1176 QemuOpts *opts;
1177 DriveInfo *dinfo;
1178
1179 if (!enable || drive_get_by_index(type, index)) {
1180 return;
1181 }
1182
1183 opts = drive_add(type, index, NULL, optstr);
1184 if (snapshot) {
1185 drive_enable_snapshot(NULL, opts, NULL);
1186 }
1187
1188 dinfo = drive_new(opts, type, &error_abort);
1189 dinfo->is_default = true;
1190
1191 }
1192
1193 typedef struct BlockdevOptionsQueueEntry {
1194 BlockdevOptions *bdo;
1195 Location loc;
1196 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
1197 } BlockdevOptionsQueueEntry;
1198
1199 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
1200
1201 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
1202 MachineClass *machine_class, int snapshot)
1203 {
1204 /*
1205 * If the currently selected machine wishes to override the
1206 * units-per-bus property of its default HBA interface type, do so
1207 * now.
1208 */
1209 if (machine_class->units_per_default_bus) {
1210 override_max_devs(machine_class->block_default_type,
1211 machine_class->units_per_default_bus);
1212 }
1213
1214 /* open the virtual block devices */
1215 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
1216 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
1217
1218 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
1219 loc_push_restore(&bdo->loc);
1220 qmp_blockdev_add(bdo->bdo, &error_fatal);
1221 loc_pop(&bdo->loc);
1222 qapi_free_BlockdevOptions(bdo->bdo);
1223 g_free(bdo);
1224 }
1225 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
1226 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
1227 NULL, NULL);
1228 }
1229 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
1230 &machine_class->block_default_type, &error_fatal)) {
1231 /* We printed help */
1232 exit(0);
1233 }
1234
1235 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
1236 CDROM_OPTS);
1237 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
1238 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
1239
1240 }
1241
1242 static QemuOptsList qemu_smp_opts = {
1243 .name = "smp-opts",
1244 .implied_opt_name = "cpus",
1245 .merge_lists = true,
1246 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1247 .desc = {
1248 {
1249 .name = "cpus",
1250 .type = QEMU_OPT_NUMBER,
1251 }, {
1252 .name = "sockets",
1253 .type = QEMU_OPT_NUMBER,
1254 }, {
1255 .name = "cores",
1256 .type = QEMU_OPT_NUMBER,
1257 }, {
1258 .name = "threads",
1259 .type = QEMU_OPT_NUMBER,
1260 }, {
1261 .name = "maxcpus",
1262 .type = QEMU_OPT_NUMBER,
1263 },
1264 { /*End of list */ }
1265 },
1266 };
1267
1268 static void smp_parse(QemuOpts *opts)
1269 {
1270 if (opts) {
1271 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1272 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1273 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1274 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1275
1276 /* compute missing values, prefer sockets over cores over threads */
1277 if (cpus == 0 || sockets == 0) {
1278 cores = cores > 0 ? cores : 1;
1279 threads = threads > 0 ? threads : 1;
1280 if (cpus == 0) {
1281 sockets = sockets > 0 ? sockets : 1;
1282 cpus = cores * threads * sockets;
1283 } else {
1284 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1285 sockets = max_cpus / (cores * threads);
1286 }
1287 } else if (cores == 0) {
1288 threads = threads > 0 ? threads : 1;
1289 cores = cpus / (sockets * threads);
1290 cores = cores > 0 ? cores : 1;
1291 } else if (threads == 0) {
1292 threads = cpus / (cores * sockets);
1293 threads = threads > 0 ? threads : 1;
1294 } else if (sockets * cores * threads < cpus) {
1295 error_report("cpu topology: "
1296 "sockets (%u) * cores (%u) * threads (%u) < "
1297 "smp_cpus (%u)",
1298 sockets, cores, threads, cpus);
1299 exit(1);
1300 }
1301
1302 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1303
1304 if (max_cpus < cpus) {
1305 error_report("maxcpus must be equal to or greater than smp");
1306 exit(1);
1307 }
1308
1309 if (sockets * cores * threads > max_cpus) {
1310 error_report("cpu topology: "
1311 "sockets (%u) * cores (%u) * threads (%u) > "
1312 "maxcpus (%u)",
1313 sockets, cores, threads, max_cpus);
1314 exit(1);
1315 }
1316
1317 if (sockets * cores * threads != max_cpus) {
1318 warn_report("Invalid CPU topology deprecated: "
1319 "sockets (%u) * cores (%u) * threads (%u) "
1320 "!= maxcpus (%u)",
1321 sockets, cores, threads, max_cpus);
1322 }
1323
1324 smp_cpus = cpus;
1325 smp_cores = cores;
1326 smp_threads = threads;
1327 }
1328
1329 if (smp_cpus > 1) {
1330 Error *blocker = NULL;
1331 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1332 replay_add_blocker(blocker);
1333 }
1334 }
1335
1336 static void realtime_init(void)
1337 {
1338 if (enable_mlock) {
1339 if (os_mlock() < 0) {
1340 error_report("locking memory failed");
1341 exit(1);
1342 }
1343 }
1344 }
1345
1346
1347 static void configure_msg(QemuOpts *opts)
1348 {
1349 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1350 }
1351
1352 /***********************************************************/
1353 /* Semihosting */
1354
1355 typedef struct SemihostingConfig {
1356 bool enabled;
1357 SemihostingTarget target;
1358 const char **argv;
1359 int argc;
1360 const char *cmdline; /* concatenated argv */
1361 } SemihostingConfig;
1362
1363 static SemihostingConfig semihosting;
1364
1365 bool semihosting_enabled(void)
1366 {
1367 return semihosting.enabled;
1368 }
1369
1370 SemihostingTarget semihosting_get_target(void)
1371 {
1372 return semihosting.target;
1373 }
1374
1375 const char *semihosting_get_arg(int i)
1376 {
1377 if (i >= semihosting.argc) {
1378 return NULL;
1379 }
1380 return semihosting.argv[i];
1381 }
1382
1383 int semihosting_get_argc(void)
1384 {
1385 return semihosting.argc;
1386 }
1387
1388 const char *semihosting_get_cmdline(void)
1389 {
1390 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1391 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1392 }
1393 return semihosting.cmdline;
1394 }
1395
1396 static int add_semihosting_arg(void *opaque,
1397 const char *name, const char *val,
1398 Error **errp)
1399 {
1400 SemihostingConfig *s = opaque;
1401 if (strcmp(name, "arg") == 0) {
1402 s->argc++;
1403 /* one extra element as g_strjoinv() expects NULL-terminated array */
1404 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1405 s->argv[s->argc - 1] = val;
1406 s->argv[s->argc] = NULL;
1407 }
1408 return 0;
1409 }
1410
1411 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1412 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1413 {
1414 char *cmd_token;
1415
1416 /* argv[0] */
1417 add_semihosting_arg(&semihosting, "arg", file, NULL);
1418
1419 /* split -append and initialize argv[1..n] */
1420 cmd_token = strtok(g_strdup(cmd), " ");
1421 while (cmd_token) {
1422 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1423 cmd_token = strtok(NULL, " ");
1424 }
1425 }
1426
1427 /* Now we still need this for compatibility with XEN. */
1428 bool has_igd_gfx_passthru;
1429 static void igd_gfx_passthru(void)
1430 {
1431 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1432 }
1433
1434 /***********************************************************/
1435 /* USB devices */
1436
1437 static int usb_device_add(const char *devname)
1438 {
1439 USBDevice *dev = NULL;
1440
1441 if (!machine_usb(current_machine)) {
1442 return -1;
1443 }
1444
1445 dev = usbdevice_create(devname);
1446 if (!dev)
1447 return -1;
1448
1449 return 0;
1450 }
1451
1452 static int usb_parse(const char *cmdline)
1453 {
1454 int r;
1455 r = usb_device_add(cmdline);
1456 if (r < 0) {
1457 error_report("could not add USB device '%s'", cmdline);
1458 }
1459 return r;
1460 }
1461
1462 /***********************************************************/
1463 /* machine registration */
1464
1465 MachineState *current_machine;
1466
1467 static MachineClass *find_machine(const char *name)
1468 {
1469 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1470 MachineClass *mc = NULL;
1471
1472 for (el = machines; el; el = el->next) {
1473 MachineClass *temp = el->data;
1474
1475 if (!strcmp(temp->name, name)) {
1476 mc = temp;
1477 break;
1478 }
1479 if (temp->alias &&
1480 !strcmp(temp->alias, name)) {
1481 mc = temp;
1482 break;
1483 }
1484 }
1485
1486 g_slist_free(machines);
1487 return mc;
1488 }
1489
1490 MachineClass *find_default_machine(void)
1491 {
1492 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1493 MachineClass *mc = NULL;
1494
1495 for (el = machines; el; el = el->next) {
1496 MachineClass *temp = el->data;
1497
1498 if (temp->is_default) {
1499 mc = temp;
1500 break;
1501 }
1502 }
1503
1504 g_slist_free(machines);
1505 return mc;
1506 }
1507
1508 MachineInfoList *qmp_query_machines(Error **errp)
1509 {
1510 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1511 MachineInfoList *mach_list = NULL;
1512
1513 for (el = machines; el; el = el->next) {
1514 MachineClass *mc = el->data;
1515 MachineInfoList *entry;
1516 MachineInfo *info;
1517
1518 info = g_malloc0(sizeof(*info));
1519 if (mc->is_default) {
1520 info->has_is_default = true;
1521 info->is_default = true;
1522 }
1523
1524 if (mc->alias) {
1525 info->has_alias = true;
1526 info->alias = g_strdup(mc->alias);
1527 }
1528
1529 info->name = g_strdup(mc->name);
1530 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1531 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1532
1533 entry = g_malloc0(sizeof(*entry));
1534 entry->value = info;
1535 entry->next = mach_list;
1536 mach_list = entry;
1537 }
1538
1539 g_slist_free(machines);
1540 return mach_list;
1541 }
1542
1543 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1544 {
1545 ObjectProperty *prop;
1546 ObjectPropertyIterator iter;
1547
1548 if (!qemu_opt_has_help_opt(opts)) {
1549 return 0;
1550 }
1551
1552 object_property_iter_init(&iter, OBJECT(machine));
1553 while ((prop = object_property_iter_next(&iter))) {
1554 if (!prop->set) {
1555 continue;
1556 }
1557
1558 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1559 prop->name, prop->type);
1560 if (prop->description) {
1561 error_printf(" (%s)\n", prop->description);
1562 } else {
1563 error_printf("\n");
1564 }
1565 }
1566
1567 return 1;
1568 }
1569
1570 struct vm_change_state_entry {
1571 VMChangeStateHandler *cb;
1572 void *opaque;
1573 QLIST_ENTRY (vm_change_state_entry) entries;
1574 };
1575
1576 static QLIST_HEAD(, vm_change_state_entry) vm_change_state_head;
1577
1578 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1579 void *opaque)
1580 {
1581 VMChangeStateEntry *e;
1582
1583 e = g_malloc0(sizeof (*e));
1584
1585 e->cb = cb;
1586 e->opaque = opaque;
1587 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1588 return e;
1589 }
1590
1591 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1592 {
1593 QLIST_REMOVE (e, entries);
1594 g_free (e);
1595 }
1596
1597 void vm_state_notify(int running, RunState state)
1598 {
1599 VMChangeStateEntry *e, *next;
1600
1601 trace_vm_state_notify(running, state, RunState_str(state));
1602
1603 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1604 e->cb(e->opaque, running, state);
1605 }
1606 }
1607
1608 static ShutdownCause reset_requested;
1609 static ShutdownCause shutdown_requested;
1610 static int shutdown_signal;
1611 static pid_t shutdown_pid;
1612 static int powerdown_requested;
1613 static int debug_requested;
1614 static int suspend_requested;
1615 static bool preconfig_exit_requested = true;
1616 static WakeupReason wakeup_reason;
1617 static NotifierList powerdown_notifiers =
1618 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1619 static NotifierList suspend_notifiers =
1620 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1621 static NotifierList wakeup_notifiers =
1622 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1623 static NotifierList shutdown_notifiers =
1624 NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
1625 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1626
1627 ShutdownCause qemu_shutdown_requested_get(void)
1628 {
1629 return shutdown_requested;
1630 }
1631
1632 ShutdownCause qemu_reset_requested_get(void)
1633 {
1634 return reset_requested;
1635 }
1636
1637 static int qemu_shutdown_requested(void)
1638 {
1639 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1640 }
1641
1642 static void qemu_kill_report(void)
1643 {
1644 if (!qtest_driver() && shutdown_signal) {
1645 if (shutdown_pid == 0) {
1646 /* This happens for eg ^C at the terminal, so it's worth
1647 * avoiding printing an odd message in that case.
1648 */
1649 error_report("terminating on signal %d", shutdown_signal);
1650 } else {
1651 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1652
1653 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1654 shutdown_signal, shutdown_pid,
1655 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1656 g_free(shutdown_cmd);
1657 }
1658 shutdown_signal = 0;
1659 }
1660 }
1661
1662 static ShutdownCause qemu_reset_requested(void)
1663 {
1664 ShutdownCause r = reset_requested;
1665
1666 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1667 reset_requested = SHUTDOWN_CAUSE_NONE;
1668 return r;
1669 }
1670 return SHUTDOWN_CAUSE_NONE;
1671 }
1672
1673 static int qemu_suspend_requested(void)
1674 {
1675 int r = suspend_requested;
1676 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1677 suspend_requested = 0;
1678 return r;
1679 }
1680 return false;
1681 }
1682
1683 static WakeupReason qemu_wakeup_requested(void)
1684 {
1685 return wakeup_reason;
1686 }
1687
1688 static int qemu_powerdown_requested(void)
1689 {
1690 int r = powerdown_requested;
1691 powerdown_requested = 0;
1692 return r;
1693 }
1694
1695 static int qemu_debug_requested(void)
1696 {
1697 int r = debug_requested;
1698 debug_requested = 0;
1699 return r;
1700 }
1701
1702 void qemu_exit_preconfig_request(void)
1703 {
1704 preconfig_exit_requested = true;
1705 }
1706
1707 /*
1708 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1709 */
1710 void qemu_system_reset(ShutdownCause reason)
1711 {
1712 MachineClass *mc;
1713
1714 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1715
1716 cpu_synchronize_all_states();
1717
1718 if (mc && mc->reset) {
1719 mc->reset();
1720 } else {
1721 qemu_devices_reset();
1722 }
1723 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1724 qapi_event_send_reset(shutdown_caused_by_guest(reason), reason);
1725 }
1726 cpu_synchronize_all_post_reset();
1727 }
1728
1729 void qemu_system_guest_panicked(GuestPanicInformation *info)
1730 {
1731 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1732
1733 if (current_cpu) {
1734 current_cpu->crash_occurred = true;
1735 }
1736 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1737 !!info, info);
1738 vm_stop(RUN_STATE_GUEST_PANICKED);
1739 if (!no_shutdown) {
1740 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1741 !!info, info);
1742 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1743 }
1744
1745 if (info) {
1746 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1747 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1748 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1749 info->u.hyper_v.arg1,
1750 info->u.hyper_v.arg2,
1751 info->u.hyper_v.arg3,
1752 info->u.hyper_v.arg4,
1753 info->u.hyper_v.arg5);
1754 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1755 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1756 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1757 info->u.s390.core,
1758 S390CrashReason_str(info->u.s390.reason),
1759 info->u.s390.psw_mask,
1760 info->u.s390.psw_addr);
1761 }
1762 qapi_free_GuestPanicInformation(info);
1763 }
1764 }
1765
1766 void qemu_system_reset_request(ShutdownCause reason)
1767 {
1768 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1769 shutdown_requested = reason;
1770 } else {
1771 reset_requested = reason;
1772 }
1773 cpu_stop_current();
1774 qemu_notify_event();
1775 }
1776
1777 static void qemu_system_suspend(void)
1778 {
1779 pause_all_vcpus();
1780 notifier_list_notify(&suspend_notifiers, NULL);
1781 runstate_set(RUN_STATE_SUSPENDED);
1782 qapi_event_send_suspend();
1783 }
1784
1785 void qemu_system_suspend_request(void)
1786 {
1787 if (runstate_check(RUN_STATE_SUSPENDED)) {
1788 return;
1789 }
1790 suspend_requested = 1;
1791 cpu_stop_current();
1792 qemu_notify_event();
1793 }
1794
1795 void qemu_register_suspend_notifier(Notifier *notifier)
1796 {
1797 notifier_list_add(&suspend_notifiers, notifier);
1798 }
1799
1800 void qemu_system_wakeup_request(WakeupReason reason, Error **errp)
1801 {
1802 trace_system_wakeup_request(reason);
1803
1804 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1805 error_setg(errp,
1806 "Unable to wake up: guest is not in suspended state");
1807 return;
1808 }
1809 if (!(wakeup_reason_mask & (1 << reason))) {
1810 return;
1811 }
1812 runstate_set(RUN_STATE_RUNNING);
1813 wakeup_reason = reason;
1814 qemu_notify_event();
1815 }
1816
1817 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1818 {
1819 if (enabled) {
1820 wakeup_reason_mask |= (1 << reason);
1821 } else {
1822 wakeup_reason_mask &= ~(1 << reason);
1823 }
1824 }
1825
1826 void qemu_register_wakeup_notifier(Notifier *notifier)
1827 {
1828 notifier_list_add(&wakeup_notifiers, notifier);
1829 }
1830
1831 void qemu_register_wakeup_support(void)
1832 {
1833 wakeup_suspend_enabled = true;
1834 }
1835
1836 bool qemu_wakeup_suspend_enabled(void)
1837 {
1838 return wakeup_suspend_enabled;
1839 }
1840
1841 CurrentMachineParams *qmp_query_current_machine(Error **errp)
1842 {
1843 CurrentMachineParams *params = g_malloc0(sizeof(*params));
1844 params->wakeup_suspend_support = qemu_wakeup_suspend_enabled();
1845
1846 return params;
1847 }
1848
1849 void qemu_system_killed(int signal, pid_t pid)
1850 {
1851 shutdown_signal = signal;
1852 shutdown_pid = pid;
1853 no_shutdown = 0;
1854
1855 /* Cannot call qemu_system_shutdown_request directly because
1856 * we are in a signal handler.
1857 */
1858 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1859 qemu_notify_event();
1860 }
1861
1862 void qemu_system_shutdown_request(ShutdownCause reason)
1863 {
1864 trace_qemu_system_shutdown_request(reason);
1865 replay_shutdown_request(reason);
1866 shutdown_requested = reason;
1867 qemu_notify_event();
1868 }
1869
1870 static void qemu_system_powerdown(void)
1871 {
1872 qapi_event_send_powerdown();
1873 notifier_list_notify(&powerdown_notifiers, NULL);
1874 }
1875
1876 static void qemu_system_shutdown(ShutdownCause cause)
1877 {
1878 qapi_event_send_shutdown(shutdown_caused_by_guest(cause), cause);
1879 notifier_list_notify(&shutdown_notifiers, &cause);
1880 }
1881
1882 void qemu_system_powerdown_request(void)
1883 {
1884 trace_qemu_system_powerdown_request();
1885 powerdown_requested = 1;
1886 qemu_notify_event();
1887 }
1888
1889 void qemu_register_powerdown_notifier(Notifier *notifier)
1890 {
1891 notifier_list_add(&powerdown_notifiers, notifier);
1892 }
1893
1894 void qemu_register_shutdown_notifier(Notifier *notifier)
1895 {
1896 notifier_list_add(&shutdown_notifiers, notifier);
1897 }
1898
1899 void qemu_system_debug_request(void)
1900 {
1901 debug_requested = 1;
1902 qemu_notify_event();
1903 }
1904
1905 static bool main_loop_should_exit(void)
1906 {
1907 RunState r;
1908 ShutdownCause request;
1909
1910 if (preconfig_exit_requested) {
1911 if (runstate_check(RUN_STATE_PRECONFIG)) {
1912 runstate_set(RUN_STATE_PRELAUNCH);
1913 }
1914 preconfig_exit_requested = false;
1915 return true;
1916 }
1917 if (qemu_debug_requested()) {
1918 vm_stop(RUN_STATE_DEBUG);
1919 }
1920 if (qemu_suspend_requested()) {
1921 qemu_system_suspend();
1922 }
1923 request = qemu_shutdown_requested();
1924 if (request) {
1925 qemu_kill_report();
1926 qemu_system_shutdown(request);
1927 if (no_shutdown) {
1928 vm_stop(RUN_STATE_SHUTDOWN);
1929 } else {
1930 return true;
1931 }
1932 }
1933 request = qemu_reset_requested();
1934 if (request) {
1935 pause_all_vcpus();
1936 qemu_system_reset(request);
1937 resume_all_vcpus();
1938 if (!runstate_check(RUN_STATE_RUNNING) &&
1939 !runstate_check(RUN_STATE_INMIGRATE)) {
1940 runstate_set(RUN_STATE_PRELAUNCH);
1941 }
1942 }
1943 if (qemu_wakeup_requested()) {
1944 pause_all_vcpus();
1945 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1946 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1947 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1948 resume_all_vcpus();
1949 qapi_event_send_wakeup();
1950 }
1951 if (qemu_powerdown_requested()) {
1952 qemu_system_powerdown();
1953 }
1954 if (qemu_vmstop_requested(&r)) {
1955 vm_stop(r);
1956 }
1957 return false;
1958 }
1959
1960 static void main_loop(void)
1961 {
1962 #ifdef CONFIG_PROFILER
1963 int64_t ti;
1964 #endif
1965 while (!main_loop_should_exit()) {
1966 #ifdef CONFIG_PROFILER
1967 ti = profile_getclock();
1968 #endif
1969 main_loop_wait(false);
1970 #ifdef CONFIG_PROFILER
1971 dev_time += profile_getclock() - ti;
1972 #endif
1973 }
1974 }
1975
1976 static void version(void)
1977 {
1978 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1979 QEMU_COPYRIGHT "\n");
1980 }
1981
1982 static void help(int exitcode)
1983 {
1984 version();
1985 printf("usage: %s [options] [disk_image]\n\n"
1986 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1987 error_get_progname());
1988
1989 #define QEMU_OPTIONS_GENERATE_HELP
1990 #include "qemu-options-wrapper.h"
1991
1992 printf("\nDuring emulation, the following keys are useful:\n"
1993 "ctrl-alt-f toggle full screen\n"
1994 "ctrl-alt-n switch to virtual console 'n'\n"
1995 "ctrl-alt toggle mouse and keyboard grab\n"
1996 "\n"
1997 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1998 "\n"
1999 QEMU_HELP_BOTTOM "\n");
2000
2001 exit(exitcode);
2002 }
2003
2004 #define HAS_ARG 0x0001
2005
2006 typedef struct QEMUOption {
2007 const char *name;
2008 int flags;
2009 int index;
2010 uint32_t arch_mask;
2011 } QEMUOption;
2012
2013 static const QEMUOption qemu_options[] = {
2014 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2015 #define QEMU_OPTIONS_GENERATE_OPTIONS
2016 #include "qemu-options-wrapper.h"
2017 { NULL },
2018 };
2019
2020 typedef struct VGAInterfaceInfo {
2021 const char *opt_name; /* option name */
2022 const char *name; /* human-readable name */
2023 /* Class names indicating that support is available.
2024 * If no class is specified, the interface is always available */
2025 const char *class_names[2];
2026 } VGAInterfaceInfo;
2027
2028 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2029 [VGA_NONE] = {
2030 .opt_name = "none",
2031 },
2032 [VGA_STD] = {
2033 .opt_name = "std",
2034 .name = "standard VGA",
2035 .class_names = { "VGA", "isa-vga" },
2036 },
2037 [VGA_CIRRUS] = {
2038 .opt_name = "cirrus",
2039 .name = "Cirrus VGA",
2040 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2041 },
2042 [VGA_VMWARE] = {
2043 .opt_name = "vmware",
2044 .name = "VMWare SVGA",
2045 .class_names = { "vmware-svga" },
2046 },
2047 [VGA_VIRTIO] = {
2048 .opt_name = "virtio",
2049 .name = "Virtio VGA",
2050 .class_names = { "virtio-vga" },
2051 },
2052 [VGA_QXL] = {
2053 .opt_name = "qxl",
2054 .name = "QXL VGA",
2055 .class_names = { "qxl-vga" },
2056 },
2057 [VGA_TCX] = {
2058 .opt_name = "tcx",
2059 .name = "TCX framebuffer",
2060 .class_names = { "SUNW,tcx" },
2061 },
2062 [VGA_CG3] = {
2063 .opt_name = "cg3",
2064 .name = "CG3 framebuffer",
2065 .class_names = { "cgthree" },
2066 },
2067 [VGA_XENFB] = {
2068 .opt_name = "xenfb",
2069 },
2070 };
2071
2072 static bool vga_interface_available(VGAInterfaceType t)
2073 {
2074 VGAInterfaceInfo *ti = &vga_interfaces[t];
2075
2076 assert(t < VGA_TYPE_MAX);
2077 return !ti->class_names[0] ||
2078 object_class_by_name(ti->class_names[0]) ||
2079 object_class_by_name(ti->class_names[1]);
2080 }
2081
2082 static void select_vgahw(const char *p)
2083 {
2084 const char *opts;
2085 int t;
2086
2087 assert(vga_interface_type == VGA_NONE);
2088 for (t = 0; t < VGA_TYPE_MAX; t++) {
2089 VGAInterfaceInfo *ti = &vga_interfaces[t];
2090 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2091 if (!vga_interface_available(t)) {
2092 error_report("%s not available", ti->name);
2093 exit(1);
2094 }
2095 vga_interface_type = t;
2096 break;
2097 }
2098 }
2099 if (t == VGA_TYPE_MAX) {
2100 invalid_vga:
2101 error_report("unknown vga type: %s", p);
2102 exit(1);
2103 }
2104 while (*opts) {
2105 const char *nextopt;
2106
2107 if (strstart(opts, ",retrace=", &nextopt)) {
2108 opts = nextopt;
2109 if (strstart(opts, "dumb", &nextopt))
2110 vga_retrace_method = VGA_RETRACE_DUMB;
2111 else if (strstart(opts, "precise", &nextopt))
2112 vga_retrace_method = VGA_RETRACE_PRECISE;
2113 else goto invalid_vga;
2114 } else goto invalid_vga;
2115 opts = nextopt;
2116 }
2117 }
2118
2119 static void parse_display_qapi(const char *optarg)
2120 {
2121 DisplayOptions *opts;
2122 Visitor *v;
2123
2124 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2125
2126 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2127 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2128
2129 qapi_free_DisplayOptions(opts);
2130 visit_free(v);
2131 }
2132
2133 DisplayOptions *qmp_query_display_options(Error **errp)
2134 {
2135 return QAPI_CLONE(DisplayOptions, &dpy);
2136 }
2137
2138 static void parse_display(const char *p)
2139 {
2140 const char *opts;
2141
2142 if (strstart(p, "sdl", &opts)) {
2143 /*
2144 * sdl DisplayType needs hand-crafted parser instead of
2145 * parse_display_qapi() due to some options not in
2146 * DisplayOptions, specifically:
2147 * - frame
2148 * Already deprecated.
2149 * - ctrl_grab + alt_grab
2150 * Not clear yet what happens to them long-term. Should
2151 * replaced by something better or deprecated and dropped.
2152 */
2153 dpy.type = DISPLAY_TYPE_SDL;
2154 while (*opts) {
2155 const char *nextopt;
2156
2157 if (strstart(opts, ",alt_grab=", &nextopt)) {
2158 opts = nextopt;
2159 if (strstart(opts, "on", &nextopt)) {
2160 alt_grab = 1;
2161 } else if (strstart(opts, "off", &nextopt)) {
2162 alt_grab = 0;
2163 } else {
2164 goto invalid_sdl_args;
2165 }
2166 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2167 opts = nextopt;
2168 if (strstart(opts, "on", &nextopt)) {
2169 ctrl_grab = 1;
2170 } else if (strstart(opts, "off", &nextopt)) {
2171 ctrl_grab = 0;
2172 } else {
2173 goto invalid_sdl_args;
2174 }
2175 } else if (strstart(opts, ",window_close=", &nextopt)) {
2176 opts = nextopt;
2177 dpy.has_window_close = true;
2178 if (strstart(opts, "on", &nextopt)) {
2179 dpy.window_close = true;
2180 } else if (strstart(opts, "off", &nextopt)) {
2181 dpy.window_close = false;
2182 } else {
2183 goto invalid_sdl_args;
2184 }
2185 } else if (strstart(opts, ",gl=", &nextopt)) {
2186 opts = nextopt;
2187 dpy.has_gl = true;
2188 if (strstart(opts, "on", &nextopt)) {
2189 dpy.gl = DISPLAYGL_MODE_ON;
2190 } else if (strstart(opts, "core", &nextopt)) {
2191 dpy.gl = DISPLAYGL_MODE_CORE;
2192 } else if (strstart(opts, "es", &nextopt)) {
2193 dpy.gl = DISPLAYGL_MODE_ES;
2194 } else if (strstart(opts, "off", &nextopt)) {
2195 dpy.gl = DISPLAYGL_MODE_OFF;
2196 } else {
2197 goto invalid_sdl_args;
2198 }
2199 } else {
2200 invalid_sdl_args:
2201 error_report("invalid SDL option string");
2202 exit(1);
2203 }
2204 opts = nextopt;
2205 }
2206 } else if (strstart(p, "vnc", &opts)) {
2207 /*
2208 * vnc isn't a (local) DisplayType but a protocol for remote
2209 * display access.
2210 */
2211 if (*opts == '=') {
2212 vnc_parse(opts + 1, &error_fatal);
2213 } else {
2214 error_report("VNC requires a display argument vnc=<display>");
2215 exit(1);
2216 }
2217 } else {
2218 parse_display_qapi(p);
2219 }
2220 }
2221
2222 char *qemu_find_file(int type, const char *name)
2223 {
2224 int i;
2225 const char *subdir;
2226 char *buf;
2227
2228 /* Try the name as a straight path first */
2229 if (access(name, R_OK) == 0) {
2230 trace_load_file(name, name);
2231 return g_strdup(name);
2232 }
2233
2234 switch (type) {
2235 case QEMU_FILE_TYPE_BIOS:
2236 subdir = "";
2237 break;
2238 case QEMU_FILE_TYPE_KEYMAP:
2239 subdir = "keymaps/";
2240 break;
2241 default:
2242 abort();
2243 }
2244
2245 for (i = 0; i < data_dir_idx; i++) {
2246 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2247 if (access(buf, R_OK) == 0) {
2248 trace_load_file(name, buf);
2249 return buf;
2250 }
2251 g_free(buf);
2252 }
2253 return NULL;
2254 }
2255
2256 static void qemu_add_data_dir(const char *path)
2257 {
2258 int i;
2259
2260 if (path == NULL) {
2261 return;
2262 }
2263 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2264 return;
2265 }
2266 for (i = 0; i < data_dir_idx; i++) {
2267 if (strcmp(data_dir[i], path) == 0) {
2268 return; /* duplicate */
2269 }
2270 }
2271 data_dir[data_dir_idx++] = g_strdup(path);
2272 }
2273
2274 static inline bool nonempty_str(const char *str)
2275 {
2276 return str && *str;
2277 }
2278
2279 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2280 {
2281 gchar *buf;
2282 size_t size;
2283 const char *name, *file, *str;
2284 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2285
2286 if (fw_cfg == NULL) {
2287 error_setg(errp, "fw_cfg device not available");
2288 return -1;
2289 }
2290 name = qemu_opt_get(opts, "name");
2291 file = qemu_opt_get(opts, "file");
2292 str = qemu_opt_get(opts, "string");
2293
2294 /* we need name and either a file or the content string */
2295 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2296 error_setg(errp, "invalid argument(s)");
2297 return -1;
2298 }
2299 if (nonempty_str(file) && nonempty_str(str)) {
2300 error_setg(errp, "file and string are mutually exclusive");
2301 return -1;
2302 }
2303 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2304 error_setg(errp, "name too long (max. %d char)",
2305 FW_CFG_MAX_FILE_PATH - 1);
2306 return -1;
2307 }
2308 if (strncmp(name, "opt/", 4) != 0) {
2309 warn_report("externally provided fw_cfg item names "
2310 "should be prefixed with \"opt/\"");
2311 }
2312 if (nonempty_str(str)) {
2313 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2314 buf = g_memdup(str, size);
2315 } else {
2316 GError *err = NULL;
2317 if (!g_file_get_contents(file, &buf, &size, &err)) {
2318 error_setg(errp, "can't load %s: %s", file, err->message);
2319 g_error_free(err);
2320 return -1;
2321 }
2322 }
2323 /* For legacy, keep user files in a specific global order. */
2324 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2325 fw_cfg_add_file(fw_cfg, name, buf, size);
2326 fw_cfg_reset_order_override(fw_cfg);
2327 return 0;
2328 }
2329
2330 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2331 {
2332 return qdev_device_help(opts);
2333 }
2334
2335 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2336 {
2337 DeviceState *dev;
2338
2339 dev = qdev_device_add(opts, errp);
2340 if (!dev) {
2341 return -1;
2342 }
2343 object_unref(OBJECT(dev));
2344 return 0;
2345 }
2346
2347 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2348 {
2349 Error *local_err = NULL;
2350
2351 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
2352 if (local_err) {
2353 error_propagate(errp, local_err);
2354 return -1;
2355 }
2356 exit(0);
2357 }
2358 return 0;
2359 }
2360
2361 #ifdef CONFIG_VIRTFS
2362 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2363 {
2364 return qemu_fsdev_add(opts, errp);
2365 }
2366 #endif
2367
2368 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2369 {
2370 Chardev *chr;
2371 const char *chardev;
2372 const char *mode;
2373 int flags;
2374
2375 mode = qemu_opt_get(opts, "mode");
2376 if (mode == NULL) {
2377 mode = "readline";
2378 }
2379 if (strcmp(mode, "readline") == 0) {
2380 flags = MONITOR_USE_READLINE;
2381 } else if (strcmp(mode, "control") == 0) {
2382 flags = MONITOR_USE_CONTROL;
2383 } else {
2384 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2385 return -1;
2386 }
2387
2388 if (qemu_opt_get_bool(opts, "pretty", 0))
2389 flags |= MONITOR_USE_PRETTY;
2390
2391 chardev = qemu_opt_get(opts, "chardev");
2392 if (!chardev) {
2393 error_report("chardev is required");
2394 exit(1);
2395 }
2396 chr = qemu_chr_find(chardev);
2397 if (chr == NULL) {
2398 error_setg(errp, "chardev \"%s\" not found", chardev);
2399 return -1;
2400 }
2401
2402 monitor_init(chr, flags);
2403 return 0;
2404 }
2405
2406 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2407 {
2408 static int monitor_device_index = 0;
2409 QemuOpts *opts;
2410 const char *p;
2411 char label[32];
2412
2413 if (strstart(optarg, "chardev:", &p)) {
2414 snprintf(label, sizeof(label), "%s", p);
2415 } else {
2416 snprintf(label, sizeof(label), "compat_monitor%d",
2417 monitor_device_index);
2418 opts = qemu_chr_parse_compat(label, optarg, true);
2419 if (!opts) {
2420 error_report("parse error: %s", optarg);
2421 exit(1);
2422 }
2423 }
2424
2425 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2426 qemu_opt_set(opts, "mode", mode, &error_abort);
2427 qemu_opt_set(opts, "chardev", label, &error_abort);
2428 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2429 monitor_device_index++;
2430 }
2431
2432 struct device_config {
2433 enum {
2434 DEV_USB, /* -usbdevice */
2435 DEV_BT, /* -bt */
2436 DEV_SERIAL, /* -serial */
2437 DEV_PARALLEL, /* -parallel */
2438 DEV_DEBUGCON, /* -debugcon */
2439 DEV_GDB, /* -gdb, -s */
2440 DEV_SCLP, /* s390 sclp */
2441 } type;
2442 const char *cmdline;
2443 Location loc;
2444 QTAILQ_ENTRY(device_config) next;
2445 };
2446
2447 static QTAILQ_HEAD(, device_config) device_configs =
2448 QTAILQ_HEAD_INITIALIZER(device_configs);
2449
2450 static void add_device_config(int type, const char *cmdline)
2451 {
2452 struct device_config *conf;
2453
2454 conf = g_malloc0(sizeof(*conf));
2455 conf->type = type;
2456 conf->cmdline = cmdline;
2457 loc_save(&conf->loc);
2458 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2459 }
2460
2461 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2462 {
2463 struct device_config *conf;
2464 int rc;
2465
2466 QTAILQ_FOREACH(conf, &device_configs, next) {
2467 if (conf->type != type)
2468 continue;
2469 loc_push_restore(&conf->loc);
2470 rc = func(conf->cmdline);
2471 loc_pop(&conf->loc);
2472 if (rc) {
2473 return rc;
2474 }
2475 }
2476 return 0;
2477 }
2478
2479 static int serial_parse(const char *devname)
2480 {
2481 int index = num_serial_hds;
2482 char label[32];
2483
2484 if (strcmp(devname, "none") == 0)
2485 return 0;
2486 snprintf(label, sizeof(label), "serial%d", index);
2487 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2488
2489 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2490 if (!serial_hds[index]) {
2491 error_report("could not connect serial device"
2492 " to character backend '%s'", devname);
2493 return -1;
2494 }
2495 num_serial_hds++;
2496 return 0;
2497 }
2498
2499 Chardev *serial_hd(int i)
2500 {
2501 assert(i >= 0);
2502 if (i < num_serial_hds) {
2503 return serial_hds[i];
2504 }
2505 return NULL;
2506 }
2507
2508 int serial_max_hds(void)
2509 {
2510 return num_serial_hds;
2511 }
2512
2513 static int parallel_parse(const char *devname)
2514 {
2515 static int index = 0;
2516 char label[32];
2517
2518 if (strcmp(devname, "none") == 0)
2519 return 0;
2520 if (index == MAX_PARALLEL_PORTS) {
2521 error_report("too many parallel ports");
2522 exit(1);
2523 }
2524 snprintf(label, sizeof(label), "parallel%d", index);
2525 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
2526 if (!parallel_hds[index]) {
2527 error_report("could not connect parallel device"
2528 " to character backend '%s'", devname);
2529 return -1;
2530 }
2531 index++;
2532 return 0;
2533 }
2534
2535 static int debugcon_parse(const char *devname)
2536 {
2537 QemuOpts *opts;
2538
2539 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
2540 error_report("invalid character backend '%s'", devname);
2541 exit(1);
2542 }
2543 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2544 if (!opts) {
2545 error_report("already have a debugcon device");
2546 exit(1);
2547 }
2548 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2549 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2550 return 0;
2551 }
2552
2553 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2554 {
2555 const MachineClass *mc1 = a, *mc2 = b;
2556 int res;
2557
2558 if (mc1->family == NULL) {
2559 if (mc2->family == NULL) {
2560 /* Compare standalone machine types against each other; they sort
2561 * in increasing order.
2562 */
2563 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2564 object_class_get_name(OBJECT_CLASS(mc2)));
2565 }
2566
2567 /* Standalone machine types sort after families. */
2568 return 1;
2569 }
2570
2571 if (mc2->family == NULL) {
2572 /* Families sort before standalone machine types. */
2573 return -1;
2574 }
2575
2576 /* Families sort between each other alphabetically increasingly. */
2577 res = strcmp(mc1->family, mc2->family);
2578 if (res != 0) {
2579 return res;
2580 }
2581
2582 /* Within the same family, machine types sort in decreasing order. */
2583 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2584 object_class_get_name(OBJECT_CLASS(mc1)));
2585 }
2586
2587 static MachineClass *machine_parse(const char *name)
2588 {
2589 MachineClass *mc = NULL;
2590 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2591
2592 if (name) {
2593 mc = find_machine(name);
2594 }
2595 if (mc) {
2596 g_slist_free(machines);
2597 return mc;
2598 }
2599 if (name && !is_help_option(name)) {
2600 error_report("unsupported machine type");
2601 error_printf("Use -machine help to list supported machines\n");
2602 } else {
2603 printf("Supported machines are:\n");
2604 machines = g_slist_sort(machines, machine_class_cmp);
2605 for (el = machines; el; el = el->next) {
2606 MachineClass *mc = el->data;
2607 if (mc->alias) {
2608 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2609 }
2610 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2611 mc->is_default ? " (default)" : "",
2612 mc->deprecation_reason ? " (deprecated)" : "");
2613 }
2614 }
2615
2616 g_slist_free(machines);
2617 exit(!name || !is_help_option(name));
2618 }
2619
2620 void qemu_add_exit_notifier(Notifier *notify)
2621 {
2622 notifier_list_add(&exit_notifiers, notify);
2623 }
2624
2625 void qemu_remove_exit_notifier(Notifier *notify)
2626 {
2627 notifier_remove(notify);
2628 }
2629
2630 static void qemu_run_exit_notifiers(void)
2631 {
2632 notifier_list_notify(&exit_notifiers, NULL);
2633 }
2634
2635 static const char *pid_file;
2636 static Notifier qemu_unlink_pidfile_notifier;
2637
2638 static void qemu_unlink_pidfile(Notifier *n, void *data)
2639 {
2640 if (pid_file) {
2641 unlink(pid_file);
2642 }
2643 }
2644
2645 bool machine_init_done;
2646
2647 void qemu_add_machine_init_done_notifier(Notifier *notify)
2648 {
2649 notifier_list_add(&machine_init_done_notifiers, notify);
2650 if (machine_init_done) {
2651 notify->notify(notify, NULL);
2652 }
2653 }
2654
2655 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2656 {
2657 notifier_remove(notify);
2658 }
2659
2660 static void qemu_run_machine_init_done_notifiers(void)
2661 {
2662 machine_init_done = true;
2663 notifier_list_notify(&machine_init_done_notifiers, NULL);
2664 }
2665
2666 static const QEMUOption *lookup_opt(int argc, char **argv,
2667 const char **poptarg, int *poptind)
2668 {
2669 const QEMUOption *popt;
2670 int optind = *poptind;
2671 char *r = argv[optind];
2672 const char *optarg;
2673
2674 loc_set_cmdline(argv, optind, 1);
2675 optind++;
2676 /* Treat --foo the same as -foo. */
2677 if (r[1] == '-')
2678 r++;
2679 popt = qemu_options;
2680 for(;;) {
2681 if (!popt->name) {
2682 error_report("invalid option");
2683 exit(1);
2684 }
2685 if (!strcmp(popt->name, r + 1))
2686 break;
2687 popt++;
2688 }
2689 if (popt->flags & HAS_ARG) {
2690 if (optind >= argc) {
2691 error_report("requires an argument");
2692 exit(1);
2693 }
2694 optarg = argv[optind++];
2695 loc_set_cmdline(argv, optind - 2, 2);
2696 } else {
2697 optarg = NULL;
2698 }
2699
2700 *poptarg = optarg;
2701 *poptind = optind;
2702
2703 return popt;
2704 }
2705
2706 static MachineClass *select_machine(void)
2707 {
2708 MachineClass *machine_class = find_default_machine();
2709 const char *optarg;
2710 QemuOpts *opts;
2711 Location loc;
2712
2713 loc_push_none(&loc);
2714
2715 opts = qemu_get_machine_opts();
2716 qemu_opts_loc_restore(opts);
2717
2718 optarg = qemu_opt_get(opts, "type");
2719 if (optarg) {
2720 machine_class = machine_parse(optarg);
2721 }
2722
2723 if (!machine_class) {
2724 error_report("No machine specified, and there is no default");
2725 error_printf("Use -machine help to list supported machines\n");
2726 exit(1);
2727 }
2728
2729 loc_pop(&loc);
2730 return machine_class;
2731 }
2732
2733 static int machine_set_property(void *opaque,
2734 const char *name, const char *value,
2735 Error **errp)
2736 {
2737 Object *obj = OBJECT(opaque);
2738 Error *local_err = NULL;
2739 char *p, *qom_name;
2740
2741 if (strcmp(name, "type") == 0) {
2742 return 0;
2743 }
2744
2745 qom_name = g_strdup(name);
2746 for (p = qom_name; *p; p++) {
2747 if (*p == '_') {
2748 *p = '-';
2749 }
2750 }
2751
2752 object_property_parse(obj, value, qom_name, &local_err);
2753 g_free(qom_name);
2754
2755 if (local_err) {
2756 error_propagate(errp, local_err);
2757 return -1;
2758 }
2759
2760 return 0;
2761 }
2762
2763
2764 /*
2765 * Initial object creation happens before all other
2766 * QEMU data types are created. The majority of objects
2767 * can be created at this point. The rng-egd object
2768 * cannot be created here, as it depends on the chardev
2769 * already existing.
2770 */
2771 static bool object_create_initial(const char *type, QemuOpts *opts)
2772 {
2773 ObjectClass *klass;
2774
2775 if (is_help_option(type)) {
2776 GSList *l, *list;
2777
2778 printf("List of user creatable objects:\n");
2779 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2780 for (l = list; l != NULL; l = l->next) {
2781 ObjectClass *oc = OBJECT_CLASS(l->data);
2782 printf(" %s\n", object_class_get_name(oc));
2783 }
2784 g_slist_free(list);
2785 exit(0);
2786 }
2787
2788 klass = object_class_by_name(type);
2789 if (klass && qemu_opt_has_help_opt(opts)) {
2790 ObjectPropertyIterator iter;
2791 ObjectProperty *prop;
2792 GPtrArray *array = g_ptr_array_new();
2793 int i;
2794
2795 object_class_property_iter_init(&iter, klass);
2796 while ((prop = object_property_iter_next(&iter))) {
2797 GString *str;
2798
2799 if (!prop->set) {
2800 continue;
2801 }
2802
2803 str = g_string_new(NULL);
2804 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2805 if (prop->description) {
2806 if (str->len < 24) {
2807 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2808 }
2809 g_string_append_printf(str, " - %s", prop->description);
2810 }
2811 g_ptr_array_add(array, g_string_free(str, false));
2812 }
2813 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2814 if (array->len > 0) {
2815 printf("%s options:\n", type);
2816 } else {
2817 printf("There are no options for %s.\n", type);
2818 }
2819 for (i = 0; i < array->len; i++) {
2820 printf("%s\n", (char *)array->pdata[i]);
2821 }
2822 g_ptr_array_set_free_func(array, g_free);
2823 g_ptr_array_free(array, true);
2824 exit(0);
2825 }
2826
2827 if (g_str_equal(type, "rng-egd") ||
2828 g_str_has_prefix(type, "pr-manager-")) {
2829 return false;
2830 }
2831
2832 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2833 if (g_str_equal(type, "cryptodev-vhost-user")) {
2834 return false;
2835 }
2836 #endif
2837
2838 /*
2839 * return false for concrete netfilters since
2840 * they depend on netdevs already existing
2841 */
2842 if (g_str_equal(type, "filter-buffer") ||
2843 g_str_equal(type, "filter-dump") ||
2844 g_str_equal(type, "filter-mirror") ||
2845 g_str_equal(type, "filter-redirector") ||
2846 g_str_equal(type, "colo-compare") ||
2847 g_str_equal(type, "filter-rewriter") ||
2848 g_str_equal(type, "filter-replay")) {
2849 return false;
2850 }
2851
2852 /* Memory allocation by backends needs to be done
2853 * after configure_accelerator() (due to the tcg_enabled()
2854 * checks at memory_region_init_*()).
2855 *
2856 * Also, allocation of large amounts of memory may delay
2857 * chardev initialization for too long, and trigger timeouts
2858 * on software that waits for a monitor socket to be created
2859 * (e.g. libvirt).
2860 */
2861 if (g_str_has_prefix(type, "memory-backend-")) {
2862 return false;
2863 }
2864
2865 return true;
2866 }
2867
2868
2869 /*
2870 * The remainder of object creation happens after the
2871 * creation of chardev, fsdev, net clients and device data types.
2872 */
2873 static bool object_create_delayed(const char *type, QemuOpts *opts)
2874 {
2875 return !object_create_initial(type, opts);
2876 }
2877
2878
2879 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2880 MachineClass *mc)
2881 {
2882 uint64_t sz;
2883 const char *mem_str;
2884 const ram_addr_t default_ram_size = mc->default_ram_size;
2885 QemuOpts *opts = qemu_find_opts_singleton("memory");
2886 Location loc;
2887
2888 loc_push_none(&loc);
2889 qemu_opts_loc_restore(opts);
2890
2891 sz = 0;
2892 mem_str = qemu_opt_get(opts, "size");
2893 if (mem_str) {
2894 if (!*mem_str) {
2895 error_report("missing 'size' option value");
2896 exit(EXIT_FAILURE);
2897 }
2898
2899 sz = qemu_opt_get_size(opts, "size", ram_size);
2900
2901 /* Fix up legacy suffix-less format */
2902 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2903 uint64_t overflow_check = sz;
2904
2905 sz *= MiB;
2906 if (sz / MiB != overflow_check) {
2907 error_report("too large 'size' option value");
2908 exit(EXIT_FAILURE);
2909 }
2910 }
2911 }
2912
2913 /* backward compatibility behaviour for case "-m 0" */
2914 if (sz == 0) {
2915 sz = default_ram_size;
2916 }
2917
2918 sz = QEMU_ALIGN_UP(sz, 8192);
2919 ram_size = sz;
2920 if (ram_size != sz) {
2921 error_report("ram size too large");
2922 exit(EXIT_FAILURE);
2923 }
2924
2925 /* store value for the future use */
2926 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2927 *maxram_size = ram_size;
2928
2929 if (qemu_opt_get(opts, "maxmem")) {
2930 uint64_t slots;
2931
2932 sz = qemu_opt_get_size(opts, "maxmem", 0);
2933 slots = qemu_opt_get_number(opts, "slots", 0);
2934 if (sz < ram_size) {
2935 error_report("invalid value of -m option maxmem: "
2936 "maximum memory size (0x%" PRIx64 ") must be at least "
2937 "the initial memory size (0x" RAM_ADDR_FMT ")",
2938 sz, ram_size);
2939 exit(EXIT_FAILURE);
2940 } else if (slots && sz == ram_size) {
2941 error_report("invalid value of -m option maxmem: "
2942 "memory slots were specified but maximum memory size "
2943 "(0x%" PRIx64 ") is equal to the initial memory size "
2944 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2945 exit(EXIT_FAILURE);
2946 }
2947
2948 *maxram_size = sz;
2949 *ram_slots = slots;
2950 } else if (qemu_opt_get(opts, "slots")) {
2951 error_report("invalid -m option value: missing 'maxmem' option");
2952 exit(EXIT_FAILURE);
2953 }
2954
2955 loc_pop(&loc);
2956 }
2957
2958 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2959 {
2960 GlobalProperty *g;
2961
2962 g = g_malloc0(sizeof(*g));
2963 g->driver = qemu_opt_get(opts, "driver");
2964 g->property = qemu_opt_get(opts, "property");
2965 g->value = qemu_opt_get(opts, "value");
2966 qdev_prop_register_global(g);
2967 return 0;
2968 }
2969
2970 static int qemu_read_default_config_file(void)
2971 {
2972 int ret;
2973
2974 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2975 if (ret < 0 && ret != -ENOENT) {
2976 return ret;
2977 }
2978
2979 return 0;
2980 }
2981
2982 static void user_register_global_props(void)
2983 {
2984 qemu_opts_foreach(qemu_find_opts("global"),
2985 global_init_func, NULL, NULL);
2986 }
2987
2988 int main(int argc, char **argv, char **envp)
2989 {
2990 int i;
2991 int snapshot, linux_boot;
2992 const char *initrd_filename;
2993 const char *kernel_filename, *kernel_cmdline;
2994 const char *boot_order = NULL;
2995 const char *boot_once = NULL;
2996 DisplayState *ds;
2997 QemuOpts *opts, *machine_opts;
2998 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2999 QemuOptsList *olist;
3000 int optind;
3001 const char *optarg;
3002 const char *loadvm = NULL;
3003 MachineClass *machine_class;
3004 const char *cpu_model;
3005 const char *vga_model = NULL;
3006 const char *qtest_chrdev = NULL;
3007 const char *qtest_log = NULL;
3008 const char *incoming = NULL;
3009 bool userconfig = true;
3010 bool nographic = false;
3011 int display_remote = 0;
3012 const char *log_mask = NULL;
3013 const char *log_file = NULL;
3014 char *trace_file = NULL;
3015 ram_addr_t maxram_size;
3016 uint64_t ram_slots = 0;
3017 FILE *vmstate_dump_file = NULL;
3018 Error *main_loop_err = NULL;
3019 Error *err = NULL;
3020 bool list_data_dirs = false;
3021 char *dir, **dirs;
3022 BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3023
3024 module_call_init(MODULE_INIT_TRACE);
3025
3026 qemu_init_cpu_list();
3027 qemu_init_cpu_loop();
3028
3029 qemu_mutex_lock_iothread();
3030
3031 atexit(qemu_run_exit_notifiers);
3032 error_set_progname(argv[0]);
3033 qemu_init_exec_dir(argv[0]);
3034
3035 module_call_init(MODULE_INIT_QOM);
3036
3037 qemu_add_opts(&qemu_drive_opts);
3038 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3039 qemu_add_drive_opts(&qemu_common_drive_opts);
3040 qemu_add_drive_opts(&qemu_drive_opts);
3041 qemu_add_drive_opts(&bdrv_runtime_opts);
3042 qemu_add_opts(&qemu_chardev_opts);
3043 qemu_add_opts(&qemu_device_opts);
3044 qemu_add_opts(&qemu_netdev_opts);
3045 qemu_add_opts(&qemu_nic_opts);
3046 qemu_add_opts(&qemu_net_opts);
3047 qemu_add_opts(&qemu_rtc_opts);
3048 qemu_add_opts(&qemu_global_opts);
3049 qemu_add_opts(&qemu_mon_opts);
3050 qemu_add_opts(&qemu_trace_opts);
3051 qemu_add_opts(&qemu_option_rom_opts);
3052 qemu_add_opts(&qemu_machine_opts);
3053 qemu_add_opts(&qemu_accel_opts);
3054 qemu_add_opts(&qemu_mem_opts);
3055 qemu_add_opts(&qemu_smp_opts);
3056 qemu_add_opts(&qemu_boot_opts);
3057 qemu_add_opts(&qemu_add_fd_opts);
3058 qemu_add_opts(&qemu_object_opts);
3059 qemu_add_opts(&qemu_tpmdev_opts);
3060 qemu_add_opts(&qemu_realtime_opts);
3061 qemu_add_opts(&qemu_overcommit_opts);
3062 qemu_add_opts(&qemu_msg_opts);
3063 qemu_add_opts(&qemu_name_opts);
3064 qemu_add_opts(&qemu_numa_opts);
3065 qemu_add_opts(&qemu_icount_opts);
3066 qemu_add_opts(&qemu_semihosting_config_opts);
3067 qemu_add_opts(&qemu_fw_cfg_opts);
3068 module_call_init(MODULE_INIT_OPTS);
3069
3070 runstate_init();
3071 precopy_infrastructure_init();
3072 postcopy_infrastructure_init();
3073 monitor_init_globals();
3074
3075 if (qcrypto_init(&err) < 0) {
3076 error_reportf_err(err, "cannot initialize crypto: ");
3077 exit(1);
3078 }
3079
3080 QLIST_INIT (&vm_change_state_head);
3081 os_setup_early_signal_handling();
3082
3083 cpu_model = NULL;
3084 snapshot = 0;
3085
3086 nb_nics = 0;
3087
3088 bdrv_init_with_whitelist();
3089
3090 autostart = 1;
3091
3092 /* first pass of option parsing */
3093 optind = 1;
3094 while (optind < argc) {
3095 if (argv[optind][0] != '-') {
3096 /* disk image */
3097 optind++;
3098 } else {
3099 const QEMUOption *popt;
3100
3101 popt = lookup_opt(argc, argv, &optarg, &optind);
3102 switch (popt->index) {
3103 case QEMU_OPTION_nouserconfig:
3104 userconfig = false;
3105 break;
3106 }
3107 }
3108 }
3109
3110 if (userconfig) {
3111 if (qemu_read_default_config_file() < 0) {
3112 exit(1);
3113 }
3114 }
3115
3116 /* second pass of option parsing */
3117 optind = 1;
3118 for(;;) {
3119 if (optind >= argc)
3120 break;
3121 if (argv[optind][0] != '-') {
3122 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3123 } else {
3124 const QEMUOption *popt;
3125
3126 popt = lookup_opt(argc, argv, &optarg, &optind);
3127 if (!(popt->arch_mask & arch_type)) {
3128 error_report("Option not supported for this target");
3129 exit(1);
3130 }
3131 switch(popt->index) {
3132 case QEMU_OPTION_cpu:
3133 /* hw initialization will check this */
3134 cpu_model = optarg;
3135 break;
3136 case QEMU_OPTION_hda:
3137 case QEMU_OPTION_hdb:
3138 case QEMU_OPTION_hdc:
3139 case QEMU_OPTION_hdd:
3140 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3141 HD_OPTS);
3142 break;
3143 case QEMU_OPTION_blockdev:
3144 {
3145 Visitor *v;
3146 BlockdevOptionsQueueEntry *bdo;
3147
3148 v = qobject_input_visitor_new_str(optarg, "driver",
3149 &error_fatal);
3150
3151 bdo = g_new(BlockdevOptionsQueueEntry, 1);
3152 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3153 &error_fatal);
3154 visit_free(v);
3155 loc_save(&bdo->loc);
3156 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3157 break;
3158 }
3159 case QEMU_OPTION_drive:
3160 if (drive_def(optarg) == NULL) {
3161 exit(1);
3162 }
3163 break;
3164 case QEMU_OPTION_set:
3165 if (qemu_set_option(optarg) != 0)
3166 exit(1);
3167 break;
3168 case QEMU_OPTION_global:
3169 if (qemu_global_option(optarg) != 0)
3170 exit(1);
3171 break;
3172 case QEMU_OPTION_mtdblock:
3173 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3174 break;
3175 case QEMU_OPTION_sd:
3176 drive_add(IF_SD, -1, optarg, SD_OPTS);
3177 break;
3178 case QEMU_OPTION_pflash:
3179 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3180 break;
3181 case QEMU_OPTION_snapshot:
3182 snapshot = 1;
3183 break;
3184 case QEMU_OPTION_numa:
3185 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3186 optarg, true);
3187 if (!opts) {
3188 exit(1);
3189 }
3190 break;
3191 case QEMU_OPTION_display:
3192 parse_display(optarg);
3193 break;
3194 case QEMU_OPTION_nographic:
3195 olist = qemu_find_opts("machine");
3196 qemu_opts_parse_noisily(olist, "graphics=off", false);
3197 nographic = true;
3198 dpy.type = DISPLAY_TYPE_NONE;
3199 break;
3200 case QEMU_OPTION_curses:
3201 #ifdef CONFIG_CURSES
3202 dpy.type = DISPLAY_TYPE_CURSES;
3203 #else
3204 error_report("curses support is disabled");
3205 exit(1);
3206 #endif
3207 break;
3208 case QEMU_OPTION_portrait:
3209 graphic_rotate = 90;
3210 break;
3211 case QEMU_OPTION_rotate:
3212 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3213 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3214 graphic_rotate != 180 && graphic_rotate != 270) {
3215 error_report("only 90, 180, 270 deg rotation is available");
3216 exit(1);
3217 }
3218 break;
3219 case QEMU_OPTION_kernel:
3220 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3221 &error_abort);
3222 break;
3223 case QEMU_OPTION_initrd:
3224 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3225 &error_abort);
3226 break;
3227 case QEMU_OPTION_append:
3228 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3229 &error_abort);
3230 break;
3231 case QEMU_OPTION_dtb:
3232 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3233 &error_abort);
3234 break;
3235 case QEMU_OPTION_cdrom:
3236 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3237 break;
3238 case QEMU_OPTION_boot:
3239 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3240 optarg, true);
3241 if (!opts) {
3242 exit(1);
3243 }
3244 break;
3245 case QEMU_OPTION_fda:
3246 case QEMU_OPTION_fdb:
3247 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3248 optarg, FD_OPTS);
3249 break;
3250 case QEMU_OPTION_no_fd_bootchk:
3251 fd_bootchk = 0;
3252 break;
3253 case QEMU_OPTION_netdev:
3254 default_net = 0;
3255 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3256 exit(1);
3257 }
3258 break;
3259 case QEMU_OPTION_nic:
3260 default_net = 0;
3261 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3262 exit(1);
3263 }
3264 break;
3265 case QEMU_OPTION_net:
3266 default_net = 0;
3267 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3268 exit(1);
3269 }
3270 break;
3271 #ifdef CONFIG_LIBISCSI
3272 case QEMU_OPTION_iscsi:
3273 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3274 optarg, false);
3275 if (!opts) {
3276 exit(1);
3277 }
3278 break;
3279 #endif
3280 case QEMU_OPTION_bt:
3281 warn_report("The bluetooth subsystem is deprecated and will "
3282 "be removed soon. If the bluetooth subsystem is "
3283 "still useful for you, please send a mail to "
3284 "qemu-devel@nongnu.org with your usecase.");
3285 add_device_config(DEV_BT, optarg);
3286 break;
3287 case QEMU_OPTION_audio_help:
3288 audio_legacy_help();
3289 exit (0);
3290 break;
3291 case QEMU_OPTION_audiodev:
3292 audio_parse_option(optarg);
3293 break;
3294 case QEMU_OPTION_soundhw:
3295 select_soundhw (optarg);
3296 break;
3297 case QEMU_OPTION_h:
3298 help(0);
3299 break;
3300 case QEMU_OPTION_version:
3301 version();
3302 exit(0);
3303 break;
3304 case QEMU_OPTION_m:
3305 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3306 optarg, true);
3307 if (!opts) {
3308 exit(EXIT_FAILURE);
3309 }
3310 break;
3311 #ifdef CONFIG_TPM
3312 case QEMU_OPTION_tpmdev:
3313 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3314 exit(1);
3315 }
3316 break;
3317 #endif
3318 case QEMU_OPTION_mempath:
3319 mem_path = optarg;
3320 break;
3321 case QEMU_OPTION_mem_prealloc:
3322 mem_prealloc = 1;
3323 break;
3324 case QEMU_OPTION_d:
3325 log_mask = optarg;
3326 break;
3327 case QEMU_OPTION_D:
3328 log_file = optarg;
3329 break;
3330 case QEMU_OPTION_DFILTER:
3331 qemu_set_dfilter_ranges(optarg, &error_fatal);
3332 break;
3333 case QEMU_OPTION_s:
3334 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3335 break;
3336 case QEMU_OPTION_gdb:
3337 add_device_config(DEV_GDB, optarg);
3338 break;
3339 case QEMU_OPTION_L:
3340 if (is_help_option(optarg)) {
3341 list_data_dirs = true;
3342 } else {
3343 qemu_add_data_dir(optarg);
3344 }
3345 break;
3346 case QEMU_OPTION_bios:
3347 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3348 &error_abort);
3349 break;
3350 case QEMU_OPTION_singlestep:
3351 singlestep = 1;
3352 break;
3353 case QEMU_OPTION_S:
3354 autostart = 0;
3355 break;
3356 case QEMU_OPTION_k:
3357 keyboard_layout = optarg;
3358 break;
3359 case QEMU_OPTION_vga:
3360 vga_model = optarg;
3361 default_vga = 0;
3362 break;
3363 case QEMU_OPTION_g:
3364 {
3365 const char *p;
3366 int w, h, depth;
3367 p = optarg;
3368 w = strtol(p, (char **)&p, 10);
3369 if (w <= 0) {
3370 graphic_error:
3371 error_report("invalid resolution or depth");
3372 exit(1);
3373 }
3374 if (*p != 'x')
3375 goto graphic_error;
3376 p++;
3377 h = strtol(p, (char **)&p, 10);
3378 if (h <= 0)
3379 goto graphic_error;
3380 if (*p == 'x') {
3381 p++;
3382 depth = strtol(p, (char **)&p, 10);
3383 if (depth != 8 && depth != 15 && depth != 16 &&
3384 depth != 24 && depth != 32)
3385 goto graphic_error;
3386 } else if (*p == '\0') {
3387 depth = graphic_depth;
3388 } else {
3389 goto graphic_error;
3390 }
3391
3392 graphic_width = w;
3393 graphic_height = h;
3394 graphic_depth = depth;
3395 }
3396 break;
3397 case QEMU_OPTION_echr:
3398 {
3399 char *r;
3400 term_escape_char = strtol(optarg, &r, 0);
3401 if (r == optarg)
3402 printf("Bad argument to echr\n");
3403 break;
3404 }
3405 case QEMU_OPTION_monitor:
3406 default_monitor = 0;
3407 if (strncmp(optarg, "none", 4)) {
3408 monitor_parse(optarg, "readline", false);
3409 }
3410 break;
3411 case QEMU_OPTION_qmp:
3412 monitor_parse(optarg, "control", false);
3413 default_monitor = 0;
3414 break;
3415 case QEMU_OPTION_qmp_pretty:
3416 monitor_parse(optarg, "control", true);
3417 default_monitor = 0;
3418 break;
3419 case QEMU_OPTION_mon:
3420 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3421 true);
3422 if (!opts) {
3423 exit(1);
3424 }
3425 default_monitor = 0;
3426 break;
3427 case QEMU_OPTION_chardev:
3428 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3429 optarg, true);
3430 if (!opts) {
3431 exit(1);
3432 }
3433 break;
3434 case QEMU_OPTION_fsdev:
3435 olist = qemu_find_opts("fsdev");
3436 if (!olist) {
3437 error_report("fsdev support is disabled");
3438 exit(1);
3439 }
3440 opts = qemu_opts_parse_noisily(olist, optarg, true);
3441 if (!opts) {
3442 exit(1);
3443 }
3444 break;
3445 case QEMU_OPTION_virtfs: {
3446 QemuOpts *fsdev;
3447 QemuOpts *device;
3448 const char *writeout, *sock_fd, *socket, *path, *security_model;
3449
3450 olist = qemu_find_opts("virtfs");
3451 if (!olist) {
3452 error_report("virtfs support is disabled");
3453 exit(1);
3454 }
3455 opts = qemu_opts_parse_noisily(olist, optarg, true);
3456 if (!opts) {
3457 exit(1);
3458 }
3459
3460 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3461 qemu_opt_get(opts, "mount_tag") == NULL) {
3462 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3463 exit(1);
3464 }
3465 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3466 qemu_opts_id(opts) ?:
3467 qemu_opt_get(opts, "mount_tag"),
3468 1, NULL);
3469 if (!fsdev) {
3470 error_report("duplicate or invalid fsdev id: %s",
3471 qemu_opt_get(opts, "mount_tag"));
3472 exit(1);
3473 }
3474
3475 writeout = qemu_opt_get(opts, "writeout");
3476 if (writeout) {
3477 #ifdef CONFIG_SYNC_FILE_RANGE
3478 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3479 #else
3480 error_report("writeout=immediate not supported "
3481 "on this platform");
3482 exit(1);
3483 #endif
3484 }
3485 qemu_opt_set(fsdev, "fsdriver",
3486 qemu_opt_get(opts, "fsdriver"), &error_abort);
3487 path = qemu_opt_get(opts, "path");
3488 if (path) {
3489 qemu_opt_set(fsdev, "path", path, &error_abort);
3490 }
3491 security_model = qemu_opt_get(opts, "security_model");
3492 if (security_model) {
3493 qemu_opt_set(fsdev, "security_model", security_model,
3494 &error_abort);
3495 }
3496 socket = qemu_opt_get(opts, "socket");
3497 if (socket) {
3498 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3499 }
3500 sock_fd = qemu_opt_get(opts, "sock_fd");
3501 if (sock_fd) {
3502 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3503 }
3504
3505 qemu_opt_set_bool(fsdev, "readonly",
3506 qemu_opt_get_bool(opts, "readonly", 0),
3507 &error_abort);
3508 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3509 &error_abort);
3510 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3511 qemu_opt_set(device, "fsdev",
3512 qemu_opts_id(fsdev), &error_abort);
3513 qemu_opt_set(device, "mount_tag",
3514 qemu_opt_get(opts, "mount_tag"), &error_abort);
3515 break;
3516 }
3517 case QEMU_OPTION_virtfs_synth: {
3518 QemuOpts *fsdev;
3519 QemuOpts *device;
3520
3521 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3522 1, NULL);
3523 if (!fsdev) {
3524 error_report("duplicate option: %s", "virtfs_synth");
3525 exit(1);
3526 }
3527 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3528
3529 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3530 &error_abort);
3531 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3532 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3533 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3534 break;
3535 }
3536 case QEMU_OPTION_serial:
3537 add_device_config(DEV_SERIAL, optarg);
3538 default_serial = 0;
3539 if (strncmp(optarg, "mon:", 4) == 0) {
3540 default_monitor = 0;
3541 }
3542 break;
3543 case QEMU_OPTION_watchdog:
3544 if (watchdog) {
3545 error_report("only one watchdog option may be given");
3546 return 1;
3547 }
3548 watchdog = optarg;
3549 break;
3550 case QEMU_OPTION_watchdog_action:
3551 if (select_watchdog_action(optarg) == -1) {
3552 error_report("unknown -watchdog-action parameter");
3553 exit(1);
3554 }
3555 break;
3556 case QEMU_OPTION_parallel:
3557 add_device_config(DEV_PARALLEL, optarg);
3558 default_parallel = 0;
3559 if (strncmp(optarg, "mon:", 4) == 0) {
3560 default_monitor = 0;
3561 }
3562 break;
3563 case QEMU_OPTION_debugcon:
3564 add_device_config(DEV_DEBUGCON, optarg);
3565 break;
3566 case QEMU_OPTION_loadvm:
3567 loadvm = optarg;
3568 break;
3569 case QEMU_OPTION_full_screen:
3570 dpy.has_full_screen = true;
3571 dpy.full_screen = true;
3572 break;
3573 case QEMU_OPTION_alt_grab:
3574 alt_grab = 1;
3575 break;
3576 case QEMU_OPTION_ctrl_grab:
3577 ctrl_grab = 1;
3578 break;
3579 case QEMU_OPTION_no_quit:
3580 dpy.has_window_close = true;
3581 dpy.window_close = false;
3582 break;
3583 case QEMU_OPTION_sdl:
3584 #ifdef CONFIG_SDL
3585 dpy.type = DISPLAY_TYPE_SDL;
3586 break;
3587 #else
3588 error_report("SDL support is disabled");
3589 exit(1);
3590 #endif
3591 case QEMU_OPTION_pidfile:
3592 pid_file = optarg;
3593 break;
3594 case QEMU_OPTION_win2k_hack:
3595 win2k_install_hack = 1;
3596 break;
3597 case QEMU_OPTION_acpitable:
3598 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3599 optarg, true);
3600 if (!opts) {
3601 exit(1);
3602 }
3603 acpi_table_add(opts, &error_fatal);
3604 break;
3605 case QEMU_OPTION_smbios:
3606 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3607 optarg, false);
3608 if (!opts) {
3609 exit(1);
3610 }
3611 smbios_entry_add(opts, &error_fatal);
3612 break;
3613 case QEMU_OPTION_fwcfg:
3614 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3615 optarg, true);
3616 if (opts == NULL) {
3617 exit(1);
3618 }
3619 break;
3620 case QEMU_OPTION_preconfig:
3621 preconfig_exit_requested = false;
3622 break;
3623 case QEMU_OPTION_enable_kvm:
3624 olist = qemu_find_opts("machine");
3625 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3626 break;
3627 case QEMU_OPTION_M:
3628 case QEMU_OPTION_machine:
3629 olist = qemu_find_opts("machine");
3630 opts = qemu_opts_parse_noisily(olist, optarg, true);
3631 if (!opts) {
3632 exit(1);
3633 }
3634 break;
3635 case QEMU_OPTION_no_kvm:
3636 olist = qemu_find_opts("machine");
3637 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3638 break;
3639 case QEMU_OPTION_accel:
3640 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3641 optarg, true);
3642 optarg = qemu_opt_get(accel_opts, "accel");
3643 if (!optarg || is_help_option(optarg)) {
3644 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3645 exit(0);
3646 }
3647 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3648 false, &error_abort);
3649 qemu_opt_set(opts, "accel", optarg, &error_abort);
3650 break;
3651 case QEMU_OPTION_usb:
3652 olist = qemu_find_opts("machine");
3653 qemu_opts_parse_noisily(olist, "usb=on", false);
3654 break;
3655 case QEMU_OPTION_usbdevice:
3656 error_report("'-usbdevice' is deprecated, please use "
3657 "'-device usb-...' instead");
3658 olist = qemu_find_opts("machine");
3659 qemu_opts_parse_noisily(olist, "usb=on", false);
3660 add_device_config(DEV_USB, optarg);
3661 break;
3662 case QEMU_OPTION_device:
3663 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3664 optarg, true)) {
3665 exit(1);
3666 }
3667 break;
3668 case QEMU_OPTION_smp:
3669 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3670 optarg, true)) {
3671 exit(1);
3672 }
3673 break;
3674 case QEMU_OPTION_vnc:
3675 vnc_parse(optarg, &error_fatal);
3676 break;
3677 case QEMU_OPTION_no_acpi:
3678 acpi_enabled = 0;
3679 break;
3680 case QEMU_OPTION_no_hpet:
3681 no_hpet = 1;
3682 break;
3683 case QEMU_OPTION_no_reboot:
3684 no_reboot = 1;
3685 break;
3686 case QEMU_OPTION_no_shutdown:
3687 no_shutdown = 1;
3688 break;
3689 case QEMU_OPTION_show_cursor:
3690 cursor_hide = 0;
3691 break;
3692 case QEMU_OPTION_uuid:
3693 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3694 error_report("failed to parse UUID string: wrong format");
3695 exit(1);
3696 }
3697 qemu_uuid_set = true;
3698 break;
3699 case QEMU_OPTION_option_rom:
3700 if (nb_option_roms >= MAX_OPTION_ROMS) {
3701 error_report("too many option ROMs");
3702 exit(1);
3703 }
3704 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3705 optarg, true);
3706 if (!opts) {
3707 exit(1);
3708 }
3709 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3710 option_rom[nb_option_roms].bootindex =
3711 qemu_opt_get_number(opts, "bootindex", -1);
3712 if (!option_rom[nb_option_roms].name) {
3713 error_report("Option ROM file is not specified");
3714 exit(1);
3715 }
3716 nb_option_roms++;
3717 break;
3718 case QEMU_OPTION_semihosting:
3719 semihosting.enabled = true;
3720 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3721 break;
3722 case QEMU_OPTION_semihosting_config:
3723 semihosting.enabled = true;
3724 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3725 optarg, false);
3726 if (opts != NULL) {
3727 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3728 true);
3729 const char *target = qemu_opt_get(opts, "target");
3730 if (target != NULL) {
3731 if (strcmp("native", target) == 0) {
3732 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3733 } else if (strcmp("gdb", target) == 0) {
3734 semihosting.target = SEMIHOSTING_TARGET_GDB;
3735 } else if (strcmp("auto", target) == 0) {
3736 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3737 } else {
3738 error_report("unsupported semihosting-config %s",
3739 optarg);
3740 exit(1);
3741 }
3742 } else {
3743 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3744 }
3745 /* Set semihosting argument count and vector */
3746 qemu_opt_foreach(opts, add_semihosting_arg,
3747 &semihosting, NULL);
3748 } else {
3749 error_report("unsupported semihosting-config %s", optarg);
3750 exit(1);
3751 }
3752 break;
3753 case QEMU_OPTION_name:
3754 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3755 optarg, true);
3756 if (!opts) {
3757 exit(1);
3758 }
3759 break;
3760 case QEMU_OPTION_prom_env:
3761 if (nb_prom_envs >= MAX_PROM_ENVS) {
3762 error_report("too many prom variables");
3763 exit(1);
3764 }
3765 prom_envs[nb_prom_envs] = optarg;
3766 nb_prom_envs++;
3767 break;
3768 case QEMU_OPTION_old_param:
3769 old_param = 1;
3770 break;
3771 case QEMU_OPTION_rtc:
3772 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3773 false);
3774 if (!opts) {
3775 exit(1);
3776 }
3777 break;
3778 case QEMU_OPTION_tb_size:
3779 #ifndef CONFIG_TCG
3780 error_report("TCG is disabled");
3781 exit(1);
3782 #endif
3783 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3784 error_report("Invalid argument to -tb-size");
3785 exit(1);
3786 }
3787 break;
3788 case QEMU_OPTION_icount:
3789 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3790 optarg, true);
3791 if (!icount_opts) {
3792 exit(1);
3793 }
3794 break;
3795 case QEMU_OPTION_incoming:
3796 if (!incoming) {
3797 runstate_set(RUN_STATE_INMIGRATE);
3798 }
3799 incoming = optarg;
3800 break;
3801 case QEMU_OPTION_only_migratable:
3802 /*
3803 * TODO: we can remove this option one day, and we
3804 * should all use:
3805 *
3806 * "-global migration.only-migratable=true"
3807 */
3808 qemu_global_option("migration.only-migratable=true");
3809 break;
3810 case QEMU_OPTION_nodefaults:
3811 has_defaults = 0;
3812 break;
3813 case QEMU_OPTION_xen_domid:
3814 if (!(xen_available())) {
3815 error_report("Option not supported for this target");
3816 exit(1);
3817 }
3818 xen_domid = atoi(optarg);
3819 break;
3820 case QEMU_OPTION_xen_attach:
3821 if (!(xen_available())) {
3822 error_report("Option not supported for this target");
3823 exit(1);
3824 }
3825 xen_mode = XEN_ATTACH;
3826 break;
3827 case QEMU_OPTION_xen_domid_restrict:
3828 if (!(xen_available())) {
3829 error_report("Option not supported for this target");
3830 exit(1);
3831 }
3832 xen_domid_restrict = true;
3833 break;
3834 case QEMU_OPTION_trace:
3835 g_free(trace_file);
3836 trace_file = trace_opt_parse(optarg);
3837 break;
3838 case QEMU_OPTION_readconfig:
3839 {
3840 int ret = qemu_read_config_file(optarg);
3841 if (ret < 0) {
3842 error_report("read config %s: %s", optarg,
3843 strerror(-ret));
3844 exit(1);
3845 }
3846 break;
3847 }
3848 case QEMU_OPTION_spice:
3849 olist = qemu_find_opts("spice");
3850 if (!olist) {
3851 error_report("spice support is disabled");
3852 exit(1);
3853 }
3854 opts = qemu_opts_parse_noisily(olist, optarg, false);
3855 if (!opts) {
3856 exit(1);
3857 }
3858 display_remote++;
3859 break;
3860 case QEMU_OPTION_writeconfig:
3861 {
3862 FILE *fp;
3863 if (strcmp(optarg, "-") == 0) {
3864 fp = stdout;
3865 } else {
3866 fp = fopen(optarg, "w");
3867 if (fp == NULL) {
3868 error_report("open %s: %s", optarg,
3869 strerror(errno));
3870 exit(1);
3871 }
3872 }
3873 qemu_config_write(fp);
3874 if (fp != stdout) {
3875 fclose(fp);
3876 }
3877 break;
3878 }
3879 case QEMU_OPTION_qtest:
3880 qtest_chrdev = optarg;
3881 break;
3882 case QEMU_OPTION_qtest_log:
3883 qtest_log = optarg;
3884 break;
3885 case QEMU_OPTION_sandbox:
3886 #ifdef CONFIG_SECCOMP
3887 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3888 optarg, true);
3889 if (!opts) {
3890 exit(1);
3891 }
3892 #else
3893 error_report("-sandbox support is not enabled "
3894 "in this QEMU binary");
3895 exit(1);
3896 #endif
3897 break;
3898 case QEMU_OPTION_add_fd:
3899 #ifndef _WIN32
3900 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3901 optarg, false);
3902 if (!opts) {
3903 exit(1);
3904 }
3905 #else
3906 error_report("File descriptor passing is disabled on this "
3907 "platform");
3908 exit(1);
3909 #endif
3910 break;
3911 case QEMU_OPTION_object:
3912 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3913 optarg, true);
3914 if (!opts) {
3915 exit(1);
3916 }
3917 break;
3918 case QEMU_OPTION_realtime:
3919 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3920 optarg, false);
3921 if (!opts) {
3922 exit(1);
3923 }
3924 /* Don't override the -overcommit option if set */
3925 enable_mlock = enable_mlock ||
3926 qemu_opt_get_bool(opts, "mlock", true);
3927 break;
3928 case QEMU_OPTION_overcommit:
3929 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3930 optarg, false);
3931 if (!opts) {
3932 exit(1);
3933 }
3934 /* Don't override the -realtime option if set */
3935 enable_mlock = enable_mlock ||
3936 qemu_opt_get_bool(opts, "mem-lock", false);
3937 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3938 break;
3939 case QEMU_OPTION_msg:
3940 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3941 false);
3942 if (!opts) {
3943 exit(1);
3944 }
3945 configure_msg(opts);
3946 break;
3947 case QEMU_OPTION_dump_vmstate:
3948 if (vmstate_dump_file) {
3949 error_report("only one '-dump-vmstate' "
3950 "option may be given");
3951 exit(1);
3952 }
3953 vmstate_dump_file = fopen(optarg, "w");
3954 if (vmstate_dump_file == NULL) {
3955 error_report("open %s: %s", optarg, strerror(errno));
3956 exit(1);
3957 }
3958 break;
3959 case QEMU_OPTION_enable_sync_profile:
3960 qsp_enable();
3961 break;
3962 case QEMU_OPTION_nouserconfig:
3963 /* Nothing to be parsed here. Especially, do not error out below. */
3964 break;
3965 default:
3966 if (os_parse_cmd_args(popt->index, optarg)) {
3967 error_report("Option not supported in this build");
3968 exit(1);
3969 }
3970 }
3971 }
3972 }
3973 /*
3974 * Clear error location left behind by the loop.
3975 * Best done right after the loop. Do not insert code here!
3976 */
3977 loc_set_none();
3978
3979 user_register_global_props();
3980
3981 replay_configure(icount_opts);
3982
3983 if (incoming && !preconfig_exit_requested) {
3984 error_report("'preconfig' and 'incoming' options are "
3985 "mutually exclusive");
3986 exit(EXIT_FAILURE);
3987 }
3988
3989 configure_rtc(qemu_find_opts_singleton("rtc"));
3990
3991 machine_class = select_machine();
3992 object_set_machine_compat_props(machine_class->compat_props);
3993
3994 set_memory_options(&ram_slots, &maxram_size, machine_class);
3995
3996 os_daemonize();
3997 rcu_disable_atfork();
3998
3999 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
4000 error_reportf_err(err, "cannot create PID file: ");
4001 exit(1);
4002 }
4003
4004 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
4005 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4006
4007 if (qemu_init_main_loop(&main_loop_err)) {
4008 error_report_err(main_loop_err);
4009 exit(1);
4010 }
4011
4012 #ifdef CONFIG_SECCOMP
4013 olist = qemu_find_opts_err("sandbox", NULL);
4014 if (olist) {
4015 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4016 }
4017 #endif
4018
4019 qemu_opts_foreach(qemu_find_opts("name"),
4020 parse_name, NULL, &error_fatal);
4021
4022 #ifndef _WIN32
4023 qemu_opts_foreach(qemu_find_opts("add-fd"),
4024 parse_add_fd, NULL, &error_fatal);
4025
4026 qemu_opts_foreach(qemu_find_opts("add-fd"),
4027 cleanup_add_fd, NULL, &error_fatal);
4028 #endif
4029
4030 current_machine = MACHINE(object_new(object_class_get_name(
4031 OBJECT_CLASS(machine_class))));
4032 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4033 exit(0);
4034 }
4035 object_property_add_child(object_get_root(), "machine",
4036 OBJECT(current_machine), &error_abort);
4037 object_property_add_child(container_get(OBJECT(current_machine),
4038 "/unattached"),
4039 "sysbus", OBJECT(sysbus_get_default()),
4040 NULL);
4041
4042 if (machine_class->minimum_page_bits) {
4043 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4044 /* This would be a board error: specifying a minimum smaller than
4045 * a target's compile-time fixed setting.
4046 */
4047 g_assert_not_reached();
4048 }
4049 }
4050
4051 cpu_exec_init_all();
4052
4053 if (machine_class->hw_version) {
4054 qemu_set_hw_version(machine_class->hw_version);
4055 }
4056
4057 if (cpu_model && is_help_option(cpu_model)) {
4058 list_cpus(stdout, &fprintf, cpu_model);
4059 exit(0);
4060 }
4061
4062 if (!trace_init_backends()) {
4063 exit(1);
4064 }
4065 trace_init_file(trace_file);
4066
4067 /* Open the logfile at this point and set the log mask if necessary.
4068 */
4069 if (log_file) {
4070 qemu_set_log_filename(log_file, &error_fatal);
4071 }
4072
4073 if (log_mask) {
4074 int mask;
4075 mask = qemu_str_to_log_mask(log_mask);
4076 if (!mask) {
4077 qemu_print_log_usage(stdout);
4078 exit(1);
4079 }
4080 qemu_set_log(mask);
4081 } else {
4082 qemu_set_log(0);
4083 }
4084
4085 /* add configured firmware directories */
4086 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4087 for (i = 0; dirs[i] != NULL; i++) {
4088 qemu_add_data_dir(dirs[i]);
4089 }
4090 g_strfreev(dirs);
4091
4092 /* try to find datadir relative to the executable path */
4093 dir = os_find_datadir();
4094 qemu_add_data_dir(dir);
4095 g_free(dir);
4096
4097 /* add the datadir specified when building */
4098 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4099
4100 /* -L help lists the data directories and exits. */
4101 if (list_data_dirs) {
4102 for (i = 0; i < data_dir_idx; i++) {
4103 printf("%s\n", data_dir[i]);
4104 }
4105 exit(0);
4106 }
4107
4108 /* machine_class: default to UP */
4109 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4110 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4111 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4112
4113 /* default to machine_class->default_cpus */
4114 smp_cpus = machine_class->default_cpus;
4115 max_cpus = machine_class->default_cpus;
4116
4117 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4118
4119 /* sanity-check smp_cpus and max_cpus against machine_class */
4120 if (smp_cpus < machine_class->min_cpus) {
4121 error_report("Invalid SMP CPUs %d. The min CPUs "
4122 "supported by machine '%s' is %d", smp_cpus,
4123 machine_class->name, machine_class->min_cpus);
4124 exit(1);
4125 }
4126 if (max_cpus > machine_class->max_cpus) {
4127 error_report("Invalid SMP CPUs %d. The max CPUs "
4128 "supported by machine '%s' is %d", max_cpus,
4129 machine_class->name, machine_class->max_cpus);
4130 exit(1);
4131 }
4132
4133 /*
4134 * Get the default machine options from the machine if it is not already
4135 * specified either by the configuration file or by the command line.
4136 */
4137 if (machine_class->default_machine_opts) {
4138 qemu_opts_set_defaults(qemu_find_opts("machine"),
4139 machine_class->default_machine_opts, 0);
4140 }
4141
4142 qemu_opts_foreach(qemu_find_opts("device"),
4143 default_driver_check, NULL, NULL);
4144 qemu_opts_foreach(qemu_find_opts("global"),
4145 default_driver_check, NULL, NULL);
4146
4147 if (!vga_model && !default_vga) {
4148 vga_interface_type = VGA_DEVICE;
4149 }
4150 if (!has_defaults || machine_class->no_serial) {
4151 default_serial = 0;
4152 }
4153 if (!has_defaults || machine_class->no_parallel) {
4154 default_parallel = 0;
4155 }
4156 if (!has_defaults || machine_class->no_floppy) {
4157 default_floppy = 0;
4158 }
4159 if (!has_defaults || machine_class->no_cdrom) {
4160 default_cdrom = 0;
4161 }
4162 if (!has_defaults || machine_class->no_sdcard) {
4163 default_sdcard = 0;
4164 }
4165 if (!has_defaults) {
4166 default_monitor = 0;
4167 default_net = 0;
4168 default_vga = 0;
4169 }
4170
4171 if (is_daemonized()) {
4172 if (!preconfig_exit_requested) {
4173 error_report("'preconfig' and 'daemonize' options are "
4174 "mutually exclusive");
4175 exit(EXIT_FAILURE);
4176 }
4177
4178 /* According to documentation and historically, -nographic redirects
4179 * serial port, parallel port and monitor to stdio, which does not work
4180 * with -daemonize. We can redirect these to null instead, but since
4181 * -nographic is legacy, let's just error out.
4182 * We disallow -nographic only if all other ports are not redirected
4183 * explicitly, to not break existing legacy setups which uses
4184 * -nographic _and_ redirects all ports explicitly - this is valid
4185 * usage, -nographic is just a no-op in this case.
4186 */
4187 if (nographic
4188 && (default_parallel || default_serial || default_monitor)) {
4189 error_report("-nographic cannot be used with -daemonize");
4190 exit(1);
4191 }
4192 #ifdef CONFIG_CURSES
4193 if (dpy.type == DISPLAY_TYPE_CURSES) {
4194 error_report("curses display cannot be used with -daemonize");
4195 exit(1);
4196 }
4197 #endif
4198 }
4199
4200 if (nographic) {
4201 if (default_parallel)
4202 add_device_config(DEV_PARALLEL, "null");
4203 if (default_serial && default_monitor) {
4204 add_device_config(DEV_SERIAL, "mon:stdio");
4205 } else {
4206 if (default_serial)
4207 add_device_config(DEV_SERIAL, "stdio");
4208 if (default_monitor)
4209 monitor_parse("stdio", "readline", false);
4210 }
4211 } else {
4212 if (default_serial)
4213 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4214 if (default_parallel)
4215 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4216 if (default_monitor)
4217 monitor_parse("vc:80Cx24C", "readline", false);
4218 }
4219
4220 #if defined(CONFIG_VNC)
4221 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4222 display_remote++;
4223 }
4224 #endif
4225 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4226 if (!qemu_display_find_default(&dpy)) {
4227 dpy.type = DISPLAY_TYPE_NONE;
4228 #if defined(CONFIG_VNC)
4229 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4230 #endif
4231 }
4232 }
4233 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4234 dpy.type = DISPLAY_TYPE_NONE;
4235 }
4236
4237 if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4238 error_report("-alt-grab and -ctrl-grab are only valid "
4239 "for SDL, ignoring option");
4240 }
4241 if (dpy.has_window_close &&
4242 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4243 error_report("-no-quit is only valid for GTK and SDL, "
4244 "ignoring option");
4245 }
4246
4247 qemu_display_early_init(&dpy);
4248 qemu_console_early_init();
4249
4250 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4251 #if defined(CONFIG_OPENGL)
4252 error_report("OpenGL is not supported by the display");
4253 #else
4254 error_report("OpenGL support is disabled");
4255 #endif
4256 exit(1);
4257 }
4258
4259 page_size_init();
4260 socket_init();
4261
4262 qemu_opts_foreach(qemu_find_opts("object"),
4263 user_creatable_add_opts_foreach,
4264 object_create_initial, &error_fatal);
4265
4266 qemu_opts_foreach(qemu_find_opts("chardev"),
4267 chardev_init_func, NULL, &error_fatal);
4268
4269 #ifdef CONFIG_VIRTFS
4270 qemu_opts_foreach(qemu_find_opts("fsdev"),
4271 fsdev_init_func, NULL, &error_fatal);
4272 #endif
4273
4274 if (qemu_opts_foreach(qemu_find_opts("device"),
4275 device_help_func, NULL, NULL)) {
4276 exit(0);
4277 }
4278
4279 /*
4280 * Note: we need to create block backends before
4281 * machine_set_property(), so machine properties can refer to
4282 * them.
4283 */
4284 configure_blockdev(&bdo_queue, machine_class, snapshot);
4285
4286 machine_opts = qemu_get_machine_opts();
4287 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4288 &error_fatal);
4289 current_machine->ram_size = ram_size;
4290 current_machine->maxram_size = maxram_size;
4291 current_machine->ram_slots = ram_slots;
4292
4293 configure_accelerator(current_machine, argv[0]);
4294
4295 if (!qtest_enabled() && machine_class->deprecation_reason) {
4296 error_report("Machine type '%s' is deprecated: %s",
4297 machine_class->name, machine_class->deprecation_reason);
4298 }
4299
4300 /*
4301 * Migration object can only be created after global properties
4302 * are applied correctly.
4303 */
4304 migration_object_init();
4305
4306 if (qtest_chrdev) {
4307 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4308 }
4309
4310 machine_opts = qemu_get_machine_opts();
4311 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4312 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4313 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4314 bios_name = qemu_opt_get(machine_opts, "firmware");
4315
4316 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4317 if (opts) {
4318 boot_order = qemu_opt_get(opts, "order");
4319 if (boot_order) {
4320 validate_bootdevices(boot_order, &error_fatal);
4321 }
4322
4323 boot_once = qemu_opt_get(opts, "once");
4324 if (boot_once) {
4325 validate_bootdevices(boot_once, &error_fatal);
4326 }
4327
4328 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4329 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4330 }
4331
4332 if (!boot_order) {
4333 boot_order = machine_class->default_boot_order;
4334 }
4335
4336 if (!kernel_cmdline) {
4337 kernel_cmdline = "";
4338 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4339 }
4340
4341 linux_boot = (kernel_filename != NULL);
4342
4343 if (!linux_boot && *kernel_cmdline != '\0') {
4344 error_report("-append only allowed with -kernel option");
4345 exit(1);
4346 }
4347
4348 if (!linux_boot && initrd_filename != NULL) {
4349 error_report("-initrd only allowed with -kernel option");
4350 exit(1);
4351 }
4352
4353 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4354 /* fall back to the -kernel/-append */
4355 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4356 }
4357
4358 os_set_line_buffering();
4359
4360 /* spice needs the timers to be initialized by this point */
4361 qemu_spice_init();
4362
4363 cpu_ticks_init();
4364 if (icount_opts) {
4365 if (!tcg_enabled()) {
4366 error_report("-icount is not allowed with hardware virtualization");
4367 exit(1);
4368 }
4369 configure_icount(icount_opts, &error_abort);
4370 qemu_opts_del(icount_opts);
4371 }
4372
4373 if (tcg_enabled()) {
4374 qemu_tcg_configure(accel_opts, &error_fatal);
4375 }
4376
4377 if (default_net) {
4378 QemuOptsList *net = qemu_find_opts("net");
4379 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4380 #ifdef CONFIG_SLIRP
4381 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4382 #endif
4383 }
4384
4385 if (net_init_clients(&err) < 0) {
4386 error_report_err(err);
4387 exit(1);
4388 }
4389
4390 qemu_opts_foreach(qemu_find_opts("object"),
4391 user_creatable_add_opts_foreach,
4392 object_create_delayed, &error_fatal);
4393
4394 tpm_init();
4395
4396 /* init the bluetooth world */
4397 if (foreach_device_config(DEV_BT, bt_parse))
4398 exit(1);
4399
4400 if (!xen_enabled()) {
4401 /* On 32-bit hosts, QEMU is limited by virtual address space */
4402 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4403 error_report("at most 2047 MB RAM can be simulated");
4404 exit(1);
4405 }
4406 }
4407
4408 blk_mig_init();
4409 ram_mig_init();
4410 dirty_bitmap_mig_init();
4411
4412 qemu_opts_foreach(qemu_find_opts("mon"),
4413 mon_init_func, NULL, &error_fatal);
4414
4415 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4416 exit(1);
4417 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4418 exit(1);
4419 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4420 exit(1);
4421
4422 /* If no default VGA is requested, the default is "none". */
4423 if (default_vga) {
4424 if (machine_class->default_display) {
4425 vga_model = machine_class->default_display;
4426 } else if (vga_interface_available(VGA_CIRRUS)) {
4427 vga_model = "cirrus";
4428 } else if (vga_interface_available(VGA_STD)) {
4429 vga_model = "std";
4430 }
4431 }
4432 if (vga_model) {
4433 select_vgahw(vga_model);
4434 }
4435
4436 if (watchdog) {
4437 i = select_watchdog(watchdog);
4438 if (i > 0)
4439 exit (i == 1 ? 1 : 0);
4440 }
4441
4442 /* This checkpoint is required by replay to separate prior clock
4443 reading from the other reads, because timer polling functions query
4444 clock values from the log. */
4445 replay_checkpoint(CHECKPOINT_INIT);
4446 qdev_machine_init();
4447
4448 current_machine->boot_order = boot_order;
4449
4450 /* parse features once if machine provides default cpu_type */
4451 current_machine->cpu_type = machine_class->default_cpu_type;
4452 if (cpu_model) {
4453 current_machine->cpu_type = parse_cpu_model(cpu_model);
4454 }
4455 parse_numa_opts(current_machine);
4456
4457 /* do monitor/qmp handling at preconfig state if requested */
4458 main_loop();
4459
4460 audio_init_audiodevs();
4461
4462 /* from here on runstate is RUN_STATE_PRELAUNCH */
4463 machine_run_board_init(current_machine);
4464
4465 realtime_init();
4466
4467 soundhw_init();
4468
4469 if (hax_enabled()) {
4470 hax_sync_vcpus();
4471 }
4472
4473 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4474 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4475
4476 /* init USB devices */
4477 if (machine_usb(current_machine)) {
4478 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4479 exit(1);
4480 }
4481
4482 /* Check if IGD GFX passthrough. */
4483 igd_gfx_passthru();
4484
4485 /* init generic devices */
4486 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4487 qemu_opts_foreach(qemu_find_opts("device"),
4488 device_init_func, NULL, &error_fatal);
4489
4490 cpu_synchronize_all_post_init();
4491
4492 rom_reset_order_override();
4493
4494 /* Did we create any drives that we failed to create a device for? */
4495 drive_check_orphaned();
4496
4497 /* Don't warn about the default network setup that you get if
4498 * no command line -net or -netdev options are specified. There
4499 * are two cases that we would otherwise complain about:
4500 * (1) board doesn't support a NIC but the implicit "-net nic"
4501 * requested one
4502 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4503 * sets up a nic that isn't connected to anything.
4504 */
4505 if (!default_net && (!qtest_enabled() || has_defaults)) {
4506 net_check_clients();
4507 }
4508
4509 if (boot_once) {
4510 qemu_boot_set(boot_once, &error_fatal);
4511 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4512 }
4513
4514 /* init local displays */
4515 ds = init_displaystate();
4516 qemu_display_init(ds, &dpy);
4517
4518 /* must be after terminal init, SDL library changes signal handlers */
4519 os_setup_signal_handling();
4520
4521 /* init remote displays */
4522 #ifdef CONFIG_VNC
4523 qemu_opts_foreach(qemu_find_opts("vnc"),
4524 vnc_init_func, NULL, &error_fatal);
4525 #endif
4526
4527 if (using_spice) {
4528 qemu_spice_display_init();
4529 }
4530
4531 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4532 exit(1);
4533 }
4534
4535 qdev_machine_creation_done();
4536
4537 /* TODO: once all bus devices are qdevified, this should be done
4538 * when bus is created by qdev.c */
4539 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4540 qemu_run_machine_init_done_notifiers();
4541
4542 if (rom_check_and_register_reset() != 0) {
4543 error_report("rom check and register reset failed");
4544 exit(1);
4545 }
4546
4547 replay_start();
4548
4549 /* This checkpoint is required by replay to separate prior clock
4550 reading from the other reads, because timer polling functions query
4551 clock values from the log. */
4552 replay_checkpoint(CHECKPOINT_RESET);
4553 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4554 register_global_state();
4555 if (loadvm) {
4556 Error *local_err = NULL;
4557 if (load_snapshot(loadvm, &local_err) < 0) {
4558 error_report_err(local_err);
4559 autostart = 0;
4560 exit(1);
4561 }
4562 }
4563 if (replay_mode != REPLAY_MODE_NONE) {
4564 replay_vmstate_init();
4565 }
4566
4567 qdev_prop_check_globals();
4568 if (vmstate_dump_file) {
4569 /* dump and exit */
4570 dump_vmstate_json_to_file(vmstate_dump_file);
4571 return 0;
4572 }
4573
4574 if (incoming) {
4575 Error *local_err = NULL;
4576 qemu_start_incoming_migration(incoming, &local_err);
4577 if (local_err) {
4578 error_reportf_err(local_err, "-incoming %s: ", incoming);
4579 exit(1);
4580 }
4581 } else if (autostart) {
4582 vm_start();
4583 }
4584
4585 accel_setup_post(current_machine);
4586 os_setup_post();
4587
4588 main_loop();
4589
4590 gdbserver_cleanup();
4591
4592 /*
4593 * cleaning up the migration object cancels any existing migration
4594 * try to do this early so that it also stops using devices.
4595 */
4596 migration_shutdown();
4597
4598 /* No more vcpu or device emulation activity beyond this point */
4599 vm_shutdown();
4600
4601 job_cancel_sync_all();
4602 bdrv_close_all();
4603
4604 res_free();
4605
4606 /* vhost-user must be cleaned up before chardevs. */
4607 tpm_cleanup();
4608 net_cleanup();
4609 audio_cleanup();
4610 monitor_cleanup();
4611 qemu_chr_cleanup();
4612 user_creatable_cleanup();
4613 /* TODO: unref root container, check all devices are ok */
4614
4615 return 0;
4616 }
QEmu