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Remove empty dummy file "loaders.cache" during uninstall (bug #1766841)
[qemu/ar7.git] / vl.c
blob4371477bd9cd645b8ea548cbe2f0330f2c8d5c6f
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 "qapi/error.h"
27 #include "qemu-version.h"
28 #include "qemu/cutils.h"
29 #include "qemu/help_option.h"
30 #include "qemu/uuid.h"
31
32 #ifdef CONFIG_SECCOMP
33 #include <sys/prctl.h>
34 #include "sysemu/seccomp.h"
35 #endif
36
37 #ifdef CONFIG_SDL
38 #if defined(__APPLE__) || defined(main)
39 #define SDL_MAIN_HANDLED
40 #include <SDL.h>
41 #if SDL_MAJOR_VERSION == 1
42 int qemu_main(int argc, char **argv);
43 int main(int argc, char **argv)
44 {
45 return qemu_main(argc, argv);
46 }
47 #undef main
48 #define main qemu_main
49 #elif SDL_MAJOR_VERSION == 2
50 #undef main
51 #else
52 #error undefined SDL version
53 #endif
54 #endif
55 #endif /* CONFIG_SDL */
56
57 #ifdef CONFIG_COCOA
58 #undef main
59 #define main qemu_main
60 #endif /* CONFIG_COCOA */
61
62
63 #include "qemu/error-report.h"
64 #include "qemu/sockets.h"
65 #include "hw/hw.h"
66 #include "hw/boards.h"
67 #include "sysemu/accel.h"
68 #include "hw/usb.h"
69 #include "hw/isa/isa.h"
70 #include "hw/scsi/scsi.h"
71 #include "hw/display/vga.h"
72 #include "hw/bt.h"
73 #include "sysemu/watchdog.h"
74 #include "hw/smbios/smbios.h"
75 #include "hw/acpi/acpi.h"
76 #include "hw/xen/xen.h"
77 #include "hw/qdev.h"
78 #include "hw/loader.h"
79 #include "monitor/qdev.h"
80 #include "sysemu/bt.h"
81 #include "net/net.h"
82 #include "net/slirp.h"
83 #include "monitor/monitor.h"
84 #include "ui/console.h"
85 #include "ui/input.h"
86 #include "sysemu/sysemu.h"
87 #include "sysemu/numa.h"
88 #include "exec/gdbstub.h"
89 #include "qemu/timer.h"
90 #include "chardev/char.h"
91 #include "qemu/bitmap.h"
92 #include "qemu/log.h"
93 #include "sysemu/blockdev.h"
94 #include "hw/block/block.h"
95 #include "migration/misc.h"
96 #include "migration/snapshot.h"
97 #include "migration/global_state.h"
98 #include "sysemu/tpm.h"
99 #include "sysemu/dma.h"
100 #include "hw/audio/soundhw.h"
101 #include "audio/audio.h"
102 #include "sysemu/cpus.h"
103 #include "migration/colo.h"
104 #include "migration/postcopy-ram.h"
105 #include "sysemu/kvm.h"
106 #include "sysemu/hax.h"
107 #include "qapi/qobject-input-visitor.h"
108 #include "qemu/option.h"
109 #include "qemu/config-file.h"
110 #include "qemu-options.h"
111 #include "qemu/main-loop.h"
112 #ifdef CONFIG_VIRTFS
113 #include "fsdev/qemu-fsdev.h"
114 #endif
115 #include "sysemu/qtest.h"
116
117 #include "disas/disas.h"
118
119
120 #include "slirp/libslirp.h"
121
122 #include "trace-root.h"
123 #include "trace/control.h"
124 #include "qemu/queue.h"
125 #include "sysemu/arch_init.h"
126
127 #include "ui/qemu-spice.h"
128 #include "qapi/string-input-visitor.h"
129 #include "qapi/opts-visitor.h"
130 #include "qom/object_interfaces.h"
131 #include "exec/semihost.h"
132 #include "crypto/init.h"
133 #include "sysemu/replay.h"
134 #include "qapi/qapi-events-run-state.h"
135 #include "qapi/qapi-visit-block-core.h"
136 #include "qapi/qapi-commands-block-core.h"
137 #include "qapi/qapi-commands-misc.h"
138 #include "qapi/qapi-commands-run-state.h"
139 #include "qapi/qmp/qerror.h"
140 #include "sysemu/iothread.h"
141
142 #define MAX_VIRTIO_CONSOLES 1
143 #define MAX_SCLP_CONSOLES 1
144
145 static const char *data_dir[16];
146 static int data_dir_idx;
147 const char *bios_name = NULL;
148 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
149 int display_opengl;
150 const char* keyboard_layout = NULL;
151 ram_addr_t ram_size;
152 const char *mem_path = NULL;
153 int mem_prealloc = 0; /* force preallocation of physical target memory */
154 bool enable_mlock = false;
155 int nb_nics;
156 NICInfo nd_table[MAX_NICS];
157 int autostart;
158 static int rtc_utc = 1;
159 static int rtc_date_offset = -1; /* -1 means no change */
160 QEMUClockType rtc_clock;
161 int vga_interface_type = VGA_NONE;
162 static DisplayOptions dpy;
163 int no_frame;
164 Chardev *serial_hds[MAX_SERIAL_PORTS];
165 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
166 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
167 Chardev *sclp_hds[MAX_SCLP_CONSOLES];
168 int win2k_install_hack = 0;
169 int singlestep = 0;
170 int smp_cpus;
171 unsigned int max_cpus;
172 int smp_cores = 1;
173 int smp_threads = 1;
174 int acpi_enabled = 1;
175 int no_hpet = 0;
176 int fd_bootchk = 1;
177 static int no_reboot;
178 int no_shutdown = 0;
179 int cursor_hide = 1;
180 int graphic_rotate = 0;
181 const char *watchdog;
182 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
183 int nb_option_roms;
184 int old_param = 0;
185 const char *qemu_name;
186 int alt_grab = 0;
187 int ctrl_grab = 0;
188 unsigned int nb_prom_envs = 0;
189 const char *prom_envs[MAX_PROM_ENVS];
190 int boot_menu;
191 bool boot_strict;
192 uint8_t *boot_splash_filedata;
193 size_t boot_splash_filedata_size;
194 uint8_t qemu_extra_params_fw[2];
195
196 int icount_align_option;
197
198 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
199 * little-endian "wire format" described in the SMBIOS 2.6 specification.
200 */
201 QemuUUID qemu_uuid;
202 bool qemu_uuid_set;
203
204 /* Trace unassigned memory or i/o accesses. */
205 bool trace_unassigned;
206
207 static NotifierList exit_notifiers =
208 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
209
210 static NotifierList machine_init_done_notifiers =
211 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
212
213 bool xen_allowed;
214 uint32_t xen_domid;
215 enum xen_mode xen_mode = XEN_EMULATE;
216 bool xen_domid_restrict;
217
218 static int has_defaults = 1;
219 static int default_serial = 1;
220 static int default_parallel = 1;
221 static int default_virtcon = 1;
222 static int default_sclp = 1;
223 static int default_monitor = 1;
224 static int default_floppy = 1;
225 static int default_cdrom = 1;
226 static int default_sdcard = 1;
227 static int default_vga = 1;
228 static int default_net = 1;
229
230 static struct {
231 const char *driver;
232 int *flag;
233 } default_list[] = {
234 { .driver = "isa-serial", .flag = &default_serial },
235 { .driver = "isa-parallel", .flag = &default_parallel },
236 { .driver = "isa-fdc", .flag = &default_floppy },
237 { .driver = "floppy", .flag = &default_floppy },
238 { .driver = "ide-cd", .flag = &default_cdrom },
239 { .driver = "ide-hd", .flag = &default_cdrom },
240 { .driver = "ide-drive", .flag = &default_cdrom },
241 { .driver = "scsi-cd", .flag = &default_cdrom },
242 { .driver = "scsi-hd", .flag = &default_cdrom },
243 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
244 { .driver = "virtio-serial", .flag = &default_virtcon },
245 { .driver = "VGA", .flag = &default_vga },
246 { .driver = "isa-vga", .flag = &default_vga },
247 { .driver = "cirrus-vga", .flag = &default_vga },
248 { .driver = "isa-cirrus-vga", .flag = &default_vga },
249 { .driver = "vmware-svga", .flag = &default_vga },
250 { .driver = "qxl-vga", .flag = &default_vga },
251 { .driver = "virtio-vga", .flag = &default_vga },
252 };
253
254 static QemuOptsList qemu_rtc_opts = {
255 .name = "rtc",
256 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
257 .desc = {
258 {
259 .name = "base",
260 .type = QEMU_OPT_STRING,
261 },{
262 .name = "clock",
263 .type = QEMU_OPT_STRING,
264 },{
265 .name = "driftfix",
266 .type = QEMU_OPT_STRING,
267 },
268 { /* end of list */ }
269 },
270 };
271
272 static QemuOptsList qemu_sandbox_opts = {
273 .name = "sandbox",
274 .implied_opt_name = "enable",
275 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
276 .desc = {
277 {
278 .name = "enable",
279 .type = QEMU_OPT_BOOL,
280 },
281 {
282 .name = "obsolete",
283 .type = QEMU_OPT_STRING,
284 },
285 {
286 .name = "elevateprivileges",
287 .type = QEMU_OPT_STRING,
288 },
289 {
290 .name = "spawn",
291 .type = QEMU_OPT_STRING,
292 },
293 {
294 .name = "resourcecontrol",
295 .type = QEMU_OPT_STRING,
296 },
297 { /* end of list */ }
298 },
299 };
300
301 static QemuOptsList qemu_option_rom_opts = {
302 .name = "option-rom",
303 .implied_opt_name = "romfile",
304 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
305 .desc = {
306 {
307 .name = "bootindex",
308 .type = QEMU_OPT_NUMBER,
309 }, {
310 .name = "romfile",
311 .type = QEMU_OPT_STRING,
312 },
313 { /* end of list */ }
314 },
315 };
316
317 static QemuOptsList qemu_machine_opts = {
318 .name = "machine",
319 .implied_opt_name = "type",
320 .merge_lists = true,
321 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
322 .desc = {
323 /*
324 * no elements => accept any
325 * sanity checking will happen later
326 * when setting machine properties
327 */
328 { }
329 },
330 };
331
332 static QemuOptsList qemu_accel_opts = {
333 .name = "accel",
334 .implied_opt_name = "accel",
335 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
336 .merge_lists = true,
337 .desc = {
338 {
339 .name = "accel",
340 .type = QEMU_OPT_STRING,
341 .help = "Select the type of accelerator",
342 },
343 {
344 .name = "thread",
345 .type = QEMU_OPT_STRING,
346 .help = "Enable/disable multi-threaded TCG",
347 },
348 { /* end of list */ }
349 },
350 };
351
352 static QemuOptsList qemu_boot_opts = {
353 .name = "boot-opts",
354 .implied_opt_name = "order",
355 .merge_lists = true,
356 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
357 .desc = {
358 {
359 .name = "order",
360 .type = QEMU_OPT_STRING,
361 }, {
362 .name = "once",
363 .type = QEMU_OPT_STRING,
364 }, {
365 .name = "menu",
366 .type = QEMU_OPT_BOOL,
367 }, {
368 .name = "splash",
369 .type = QEMU_OPT_STRING,
370 }, {
371 .name = "splash-time",
372 .type = QEMU_OPT_STRING,
373 }, {
374 .name = "reboot-timeout",
375 .type = QEMU_OPT_STRING,
376 }, {
377 .name = "strict",
378 .type = QEMU_OPT_BOOL,
379 },
380 { /*End of list */ }
381 },
382 };
383
384 static QemuOptsList qemu_add_fd_opts = {
385 .name = "add-fd",
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
387 .desc = {
388 {
389 .name = "fd",
390 .type = QEMU_OPT_NUMBER,
391 .help = "file descriptor of which a duplicate is added to fd set",
392 },{
393 .name = "set",
394 .type = QEMU_OPT_NUMBER,
395 .help = "ID of the fd set to add fd to",
396 },{
397 .name = "opaque",
398 .type = QEMU_OPT_STRING,
399 .help = "free-form string used to describe fd",
400 },
401 { /* end of list */ }
402 },
403 };
404
405 static QemuOptsList qemu_object_opts = {
406 .name = "object",
407 .implied_opt_name = "qom-type",
408 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
409 .desc = {
410 { }
411 },
412 };
413
414 static QemuOptsList qemu_tpmdev_opts = {
415 .name = "tpmdev",
416 .implied_opt_name = "type",
417 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
418 .desc = {
419 /* options are defined in the TPM backends */
420 { /* end of list */ }
421 },
422 };
423
424 static QemuOptsList qemu_realtime_opts = {
425 .name = "realtime",
426 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
427 .desc = {
428 {
429 .name = "mlock",
430 .type = QEMU_OPT_BOOL,
431 },
432 { /* end of list */ }
433 },
434 };
435
436 static QemuOptsList qemu_msg_opts = {
437 .name = "msg",
438 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
439 .desc = {
440 {
441 .name = "timestamp",
442 .type = QEMU_OPT_BOOL,
443 },
444 { /* end of list */ }
445 },
446 };
447
448 static QemuOptsList qemu_name_opts = {
449 .name = "name",
450 .implied_opt_name = "guest",
451 .merge_lists = true,
452 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
453 .desc = {
454 {
455 .name = "guest",
456 .type = QEMU_OPT_STRING,
457 .help = "Sets the name of the guest.\n"
458 "This name will be displayed in the SDL window caption.\n"
459 "The name will also be used for the VNC server",
460 }, {
461 .name = "process",
462 .type = QEMU_OPT_STRING,
463 .help = "Sets the name of the QEMU process, as shown in top etc",
464 }, {
465 .name = "debug-threads",
466 .type = QEMU_OPT_BOOL,
467 .help = "When enabled, name the individual threads; defaults off.\n"
468 "NOTE: The thread names are for debugging and not a\n"
469 "stable API.",
470 },
471 { /* End of list */ }
472 },
473 };
474
475 static QemuOptsList qemu_mem_opts = {
476 .name = "memory",
477 .implied_opt_name = "size",
478 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
479 .merge_lists = true,
480 .desc = {
481 {
482 .name = "size",
483 .type = QEMU_OPT_SIZE,
484 },
485 {
486 .name = "slots",
487 .type = QEMU_OPT_NUMBER,
488 },
489 {
490 .name = "maxmem",
491 .type = QEMU_OPT_SIZE,
492 },
493 { /* end of list */ }
494 },
495 };
496
497 static QemuOptsList qemu_icount_opts = {
498 .name = "icount",
499 .implied_opt_name = "shift",
500 .merge_lists = true,
501 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
502 .desc = {
503 {
504 .name = "shift",
505 .type = QEMU_OPT_STRING,
506 }, {
507 .name = "align",
508 .type = QEMU_OPT_BOOL,
509 }, {
510 .name = "sleep",
511 .type = QEMU_OPT_BOOL,
512 }, {
513 .name = "rr",
514 .type = QEMU_OPT_STRING,
515 }, {
516 .name = "rrfile",
517 .type = QEMU_OPT_STRING,
518 }, {
519 .name = "rrsnapshot",
520 .type = QEMU_OPT_STRING,
521 },
522 { /* end of list */ }
523 },
524 };
525
526 static QemuOptsList qemu_semihosting_config_opts = {
527 .name = "semihosting-config",
528 .implied_opt_name = "enable",
529 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
530 .desc = {
531 {
532 .name = "enable",
533 .type = QEMU_OPT_BOOL,
534 }, {
535 .name = "target",
536 .type = QEMU_OPT_STRING,
537 }, {
538 .name = "arg",
539 .type = QEMU_OPT_STRING,
540 },
541 { /* end of list */ }
542 },
543 };
544
545 static QemuOptsList qemu_fw_cfg_opts = {
546 .name = "fw_cfg",
547 .implied_opt_name = "name",
548 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
549 .desc = {
550 {
551 .name = "name",
552 .type = QEMU_OPT_STRING,
553 .help = "Sets the fw_cfg name of the blob to be inserted",
554 }, {
555 .name = "file",
556 .type = QEMU_OPT_STRING,
557 .help = "Sets the name of the file from which\n"
558 "the fw_cfg blob will be loaded",
559 }, {
560 .name = "string",
561 .type = QEMU_OPT_STRING,
562 .help = "Sets content of the blob to be inserted from a string",
563 },
564 { /* end of list */ }
565 },
566 };
567
568 /**
569 * Get machine options
570 *
571 * Returns: machine options (never null).
572 */
573 QemuOpts *qemu_get_machine_opts(void)
574 {
575 return qemu_find_opts_singleton("machine");
576 }
577
578 const char *qemu_get_vm_name(void)
579 {
580 return qemu_name;
581 }
582
583 static void res_free(void)
584 {
585 g_free(boot_splash_filedata);
586 boot_splash_filedata = NULL;
587 }
588
589 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
590 {
591 const char *driver = qemu_opt_get(opts, "driver");
592 int i;
593
594 if (!driver)
595 return 0;
596 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
597 if (strcmp(default_list[i].driver, driver) != 0)
598 continue;
599 *(default_list[i].flag) = 0;
600 }
601 return 0;
602 }
603
604 /***********************************************************/
605 /* QEMU state */
606
607 static RunState current_run_state = RUN_STATE_PRELAUNCH;
608
609 /* We use RUN_STATE__MAX but any invalid value will do */
610 static RunState vmstop_requested = RUN_STATE__MAX;
611 static QemuMutex vmstop_lock;
612
613 typedef struct {
614 RunState from;
615 RunState to;
616 } RunStateTransition;
617
618 static const RunStateTransition runstate_transitions_def[] = {
619 /* from -> to */
620 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
621 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
623
624 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
625 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
626 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
627 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
628 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
629 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
630 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
631 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
632 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
634 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
635 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
636
637 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
638 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
639 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
640
641 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
642 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
643 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
644
645 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
646 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
647 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
648 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
649 { RUN_STATE_PAUSED, RUN_STATE_COLO},
650
651 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
652 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
653 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
654
655 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
656 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
657 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
658
659 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
660 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
661 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
662 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
663 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
664
665 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
666 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
667
668 { RUN_STATE_COLO, RUN_STATE_RUNNING },
669
670 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
671 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
672 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
673 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
674 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
675 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
676 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
677 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
678 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
679 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
680 { RUN_STATE_RUNNING, RUN_STATE_COLO},
681
682 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
683
684 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
685 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
686 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
687
688 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
689 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
690 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
691 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
692 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
693 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
694
695 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
696 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
697 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
698 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
699
700 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
701 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
702 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
703
704 { RUN_STATE__MAX, RUN_STATE__MAX },
705 };
706
707 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
708
709 bool runstate_check(RunState state)
710 {
711 return current_run_state == state;
712 }
713
714 bool runstate_store(char *str, size_t size)
715 {
716 const char *state = RunState_str(current_run_state);
717 size_t len = strlen(state) + 1;
718
719 if (len > size) {
720 return false;
721 }
722 memcpy(str, state, len);
723 return true;
724 }
725
726 static void runstate_init(void)
727 {
728 const RunStateTransition *p;
729
730 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
731 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
732 runstate_valid_transitions[p->from][p->to] = true;
733 }
734
735 qemu_mutex_init(&vmstop_lock);
736 }
737
738 /* This function will abort() on invalid state transitions */
739 void runstate_set(RunState new_state)
740 {
741 assert(new_state < RUN_STATE__MAX);
742
743 if (current_run_state == new_state) {
744 return;
745 }
746
747 if (!runstate_valid_transitions[current_run_state][new_state]) {
748 error_report("invalid runstate transition: '%s' -> '%s'",
749 RunState_str(current_run_state),
750 RunState_str(new_state));
751 abort();
752 }
753 trace_runstate_set(new_state);
754 current_run_state = new_state;
755 }
756
757 int runstate_is_running(void)
758 {
759 return runstate_check(RUN_STATE_RUNNING);
760 }
761
762 bool runstate_needs_reset(void)
763 {
764 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
765 runstate_check(RUN_STATE_SHUTDOWN);
766 }
767
768 StatusInfo *qmp_query_status(Error **errp)
769 {
770 StatusInfo *info = g_malloc0(sizeof(*info));
771
772 info->running = runstate_is_running();
773 info->singlestep = singlestep;
774 info->status = current_run_state;
775
776 return info;
777 }
778
779 bool qemu_vmstop_requested(RunState *r)
780 {
781 qemu_mutex_lock(&vmstop_lock);
782 *r = vmstop_requested;
783 vmstop_requested = RUN_STATE__MAX;
784 qemu_mutex_unlock(&vmstop_lock);
785 return *r < RUN_STATE__MAX;
786 }
787
788 void qemu_system_vmstop_request_prepare(void)
789 {
790 qemu_mutex_lock(&vmstop_lock);
791 }
792
793 void qemu_system_vmstop_request(RunState state)
794 {
795 vmstop_requested = state;
796 qemu_mutex_unlock(&vmstop_lock);
797 qemu_notify_event();
798 }
799
800 /***********************************************************/
801 /* real time host monotonic timer */
802
803 static time_t qemu_time(void)
804 {
805 return qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
806 }
807
808 /***********************************************************/
809 /* host time/date access */
810 void qemu_get_timedate(struct tm *tm, int offset)
811 {
812 time_t ti = qemu_time();
813
814 ti += offset;
815 if (rtc_date_offset == -1) {
816 if (rtc_utc)
817 gmtime_r(&ti, tm);
818 else
819 localtime_r(&ti, tm);
820 } else {
821 ti -= rtc_date_offset;
822 gmtime_r(&ti, tm);
823 }
824 }
825
826 int qemu_timedate_diff(struct tm *tm)
827 {
828 time_t seconds;
829
830 if (rtc_date_offset == -1)
831 if (rtc_utc)
832 seconds = mktimegm(tm);
833 else {
834 struct tm tmp = *tm;
835 tmp.tm_isdst = -1; /* use timezone to figure it out */
836 seconds = mktime(&tmp);
837 }
838 else
839 seconds = mktimegm(tm) + rtc_date_offset;
840
841 return seconds - qemu_time();
842 }
843
844 static void configure_rtc_date_offset(const char *startdate, int legacy)
845 {
846 time_t rtc_start_date;
847 struct tm tm;
848
849 if (!strcmp(startdate, "now") && legacy) {
850 rtc_date_offset = -1;
851 } else {
852 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
853 &tm.tm_year,
854 &tm.tm_mon,
855 &tm.tm_mday,
856 &tm.tm_hour,
857 &tm.tm_min,
858 &tm.tm_sec) == 6) {
859 /* OK */
860 } else if (sscanf(startdate, "%d-%d-%d",
861 &tm.tm_year,
862 &tm.tm_mon,
863 &tm.tm_mday) == 3) {
864 tm.tm_hour = 0;
865 tm.tm_min = 0;
866 tm.tm_sec = 0;
867 } else {
868 goto date_fail;
869 }
870 tm.tm_year -= 1900;
871 tm.tm_mon--;
872 rtc_start_date = mktimegm(&tm);
873 if (rtc_start_date == -1) {
874 date_fail:
875 error_report("invalid date format");
876 error_printf("valid formats: "
877 "'2006-06-17T16:01:21' or '2006-06-17'\n");
878 exit(1);
879 }
880 rtc_date_offset = qemu_time() - rtc_start_date;
881 }
882 }
883
884 static void configure_rtc(QemuOpts *opts)
885 {
886 const char *value;
887
888 value = qemu_opt_get(opts, "base");
889 if (value) {
890 if (!strcmp(value, "utc")) {
891 rtc_utc = 1;
892 } else if (!strcmp(value, "localtime")) {
893 Error *blocker = NULL;
894 rtc_utc = 0;
895 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
896 "-rtc base=localtime");
897 replay_add_blocker(blocker);
898 } else {
899 configure_rtc_date_offset(value, 0);
900 }
901 }
902 value = qemu_opt_get(opts, "clock");
903 if (value) {
904 if (!strcmp(value, "host")) {
905 rtc_clock = QEMU_CLOCK_HOST;
906 } else if (!strcmp(value, "rt")) {
907 rtc_clock = QEMU_CLOCK_REALTIME;
908 } else if (!strcmp(value, "vm")) {
909 rtc_clock = QEMU_CLOCK_VIRTUAL;
910 } else {
911 error_report("invalid option value '%s'", value);
912 exit(1);
913 }
914 }
915 value = qemu_opt_get(opts, "driftfix");
916 if (value) {
917 if (!strcmp(value, "slew")) {
918 static GlobalProperty slew_lost_ticks = {
919 .driver = "mc146818rtc",
920 .property = "lost_tick_policy",
921 .value = "slew",
922 };
923
924 qdev_prop_register_global(&slew_lost_ticks);
925 } else if (!strcmp(value, "none")) {
926 /* discard is default */
927 } else {
928 error_report("invalid option value '%s'", value);
929 exit(1);
930 }
931 }
932 }
933
934 /***********************************************************/
935 /* Bluetooth support */
936 static int nb_hcis;
937 static int cur_hci;
938 static struct HCIInfo *hci_table[MAX_NICS];
939
940 struct HCIInfo *qemu_next_hci(void)
941 {
942 if (cur_hci == nb_hcis)
943 return &null_hci;
944
945 return hci_table[cur_hci++];
946 }
947
948 static int bt_hci_parse(const char *str)
949 {
950 struct HCIInfo *hci;
951 bdaddr_t bdaddr;
952
953 if (nb_hcis >= MAX_NICS) {
954 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
955 return -1;
956 }
957
958 hci = hci_init(str);
959 if (!hci)
960 return -1;
961
962 bdaddr.b[0] = 0x52;
963 bdaddr.b[1] = 0x54;
964 bdaddr.b[2] = 0x00;
965 bdaddr.b[3] = 0x12;
966 bdaddr.b[4] = 0x34;
967 bdaddr.b[5] = 0x56 + nb_hcis;
968 hci->bdaddr_set(hci, bdaddr.b);
969
970 hci_table[nb_hcis++] = hci;
971
972 return 0;
973 }
974
975 static void bt_vhci_add(int vlan_id)
976 {
977 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
978
979 if (!vlan->slave)
980 warn_report("adding a VHCI to an empty scatternet %i",
981 vlan_id);
982
983 bt_vhci_init(bt_new_hci(vlan));
984 }
985
986 static struct bt_device_s *bt_device_add(const char *opt)
987 {
988 struct bt_scatternet_s *vlan;
989 int vlan_id = 0;
990 char *endp = strstr(opt, ",vlan=");
991 int len = (endp ? endp - opt : strlen(opt)) + 1;
992 char devname[10];
993
994 pstrcpy(devname, MIN(sizeof(devname), len), opt);
995
996 if (endp) {
997 vlan_id = strtol(endp + 6, &endp, 0);
998 if (*endp) {
999 error_report("unrecognised bluetooth vlan Id");
1000 return 0;
1001 }
1002 }
1003
1004 vlan = qemu_find_bt_vlan(vlan_id);
1005
1006 if (!vlan->slave)
1007 warn_report("adding a slave device to an empty scatternet %i",
1008 vlan_id);
1009
1010 if (!strcmp(devname, "keyboard"))
1011 return bt_keyboard_init(vlan);
1012
1013 error_report("unsupported bluetooth device '%s'", devname);
1014 return 0;
1015 }
1016
1017 static int bt_parse(const char *opt)
1018 {
1019 const char *endp, *p;
1020 int vlan;
1021
1022 if (strstart(opt, "hci", &endp)) {
1023 if (!*endp || *endp == ',') {
1024 if (*endp)
1025 if (!strstart(endp, ",vlan=", 0))
1026 opt = endp + 1;
1027
1028 return bt_hci_parse(opt);
1029 }
1030 } else if (strstart(opt, "vhci", &endp)) {
1031 if (!*endp || *endp == ',') {
1032 if (*endp) {
1033 if (strstart(endp, ",vlan=", &p)) {
1034 vlan = strtol(p, (char **) &endp, 0);
1035 if (*endp) {
1036 error_report("bad scatternet '%s'", p);
1037 return 1;
1038 }
1039 } else {
1040 error_report("bad parameter '%s'", endp + 1);
1041 return 1;
1042 }
1043 } else
1044 vlan = 0;
1045
1046 bt_vhci_add(vlan);
1047 return 0;
1048 }
1049 } else if (strstart(opt, "device:", &endp))
1050 return !bt_device_add(endp);
1051
1052 error_report("bad bluetooth parameter '%s'", opt);
1053 return 1;
1054 }
1055
1056 static int parse_sandbox(void *opaque, QemuOpts *opts, Error **errp)
1057 {
1058 if (qemu_opt_get_bool(opts, "enable", false)) {
1059 #ifdef CONFIG_SECCOMP
1060 uint32_t seccomp_opts = QEMU_SECCOMP_SET_DEFAULT
1061 | QEMU_SECCOMP_SET_OBSOLETE;
1062 const char *value = NULL;
1063
1064 value = qemu_opt_get(opts, "obsolete");
1065 if (value) {
1066 if (g_str_equal(value, "allow")) {
1067 seccomp_opts &= ~QEMU_SECCOMP_SET_OBSOLETE;
1068 } else if (g_str_equal(value, "deny")) {
1069 /* this is the default option, this if is here
1070 * to provide a little bit of consistency for
1071 * the command line */
1072 } else {
1073 error_report("invalid argument for obsolete");
1074 return -1;
1075 }
1076 }
1077
1078 value = qemu_opt_get(opts, "elevateprivileges");
1079 if (value) {
1080 if (g_str_equal(value, "deny")) {
1081 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1082 } else if (g_str_equal(value, "children")) {
1083 seccomp_opts |= QEMU_SECCOMP_SET_PRIVILEGED;
1084
1085 /* calling prctl directly because we're
1086 * not sure if host has CAP_SYS_ADMIN set*/
1087 if (prctl(PR_SET_NO_NEW_PRIVS, 1)) {
1088 error_report("failed to set no_new_privs "
1089 "aborting");
1090 return -1;
1091 }
1092 } else if (g_str_equal(value, "allow")) {
1093 /* default value */
1094 } else {
1095 error_report("invalid argument for elevateprivileges");
1096 return -1;
1097 }
1098 }
1099
1100 value = qemu_opt_get(opts, "spawn");
1101 if (value) {
1102 if (g_str_equal(value, "deny")) {
1103 seccomp_opts |= QEMU_SECCOMP_SET_SPAWN;
1104 } else if (g_str_equal(value, "allow")) {
1105 /* default value */
1106 } else {
1107 error_report("invalid argument for spawn");
1108 return -1;
1109 }
1110 }
1111
1112 value = qemu_opt_get(opts, "resourcecontrol");
1113 if (value) {
1114 if (g_str_equal(value, "deny")) {
1115 seccomp_opts |= QEMU_SECCOMP_SET_RESOURCECTL;
1116 } else if (g_str_equal(value, "allow")) {
1117 /* default value */
1118 } else {
1119 error_report("invalid argument for resourcecontrol");
1120 return -1;
1121 }
1122 }
1123
1124 if (seccomp_start(seccomp_opts) < 0) {
1125 error_report("failed to install seccomp syscall filter "
1126 "in the kernel");
1127 return -1;
1128 }
1129 #else
1130 error_report("seccomp support is disabled");
1131 return -1;
1132 #endif
1133 }
1134
1135 return 0;
1136 }
1137
1138 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1139 {
1140 const char *proc_name;
1141
1142 if (qemu_opt_get(opts, "debug-threads")) {
1143 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1144 }
1145 qemu_name = qemu_opt_get(opts, "guest");
1146
1147 proc_name = qemu_opt_get(opts, "process");
1148 if (proc_name) {
1149 os_set_proc_name(proc_name);
1150 }
1151
1152 return 0;
1153 }
1154
1155 bool defaults_enabled(void)
1156 {
1157 return has_defaults;
1158 }
1159
1160 #ifndef _WIN32
1161 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1162 {
1163 int fd, dupfd, flags;
1164 int64_t fdset_id;
1165 const char *fd_opaque = NULL;
1166 AddfdInfo *fdinfo;
1167
1168 fd = qemu_opt_get_number(opts, "fd", -1);
1169 fdset_id = qemu_opt_get_number(opts, "set", -1);
1170 fd_opaque = qemu_opt_get(opts, "opaque");
1171
1172 if (fd < 0) {
1173 error_report("fd option is required and must be non-negative");
1174 return -1;
1175 }
1176
1177 if (fd <= STDERR_FILENO) {
1178 error_report("fd cannot be a standard I/O stream");
1179 return -1;
1180 }
1181
1182 /*
1183 * All fds inherited across exec() necessarily have FD_CLOEXEC
1184 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1185 */
1186 flags = fcntl(fd, F_GETFD);
1187 if (flags == -1 || (flags & FD_CLOEXEC)) {
1188 error_report("fd is not valid or already in use");
1189 return -1;
1190 }
1191
1192 if (fdset_id < 0) {
1193 error_report("set option is required and must be non-negative");
1194 return -1;
1195 }
1196
1197 #ifdef F_DUPFD_CLOEXEC
1198 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1199 #else
1200 dupfd = dup(fd);
1201 if (dupfd != -1) {
1202 qemu_set_cloexec(dupfd);
1203 }
1204 #endif
1205 if (dupfd == -1) {
1206 error_report("error duplicating fd: %s", strerror(errno));
1207 return -1;
1208 }
1209
1210 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1211 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1212 &error_abort);
1213 g_free(fdinfo);
1214
1215 return 0;
1216 }
1217
1218 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1219 {
1220 int fd;
1221
1222 fd = qemu_opt_get_number(opts, "fd", -1);
1223 close(fd);
1224
1225 return 0;
1226 }
1227 #endif
1228
1229 /***********************************************************/
1230 /* QEMU Block devices */
1231
1232 #define HD_OPTS "media=disk"
1233 #define CDROM_OPTS "media=cdrom"
1234 #define FD_OPTS ""
1235 #define PFLASH_OPTS ""
1236 #define MTD_OPTS ""
1237 #define SD_OPTS ""
1238
1239 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1240 {
1241 BlockInterfaceType *block_default_type = opaque;
1242
1243 return drive_new(opts, *block_default_type) == NULL;
1244 }
1245
1246 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1247 {
1248 if (qemu_opt_get(opts, "snapshot") == NULL) {
1249 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1250 }
1251 return 0;
1252 }
1253
1254 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1255 int index, const char *optstr)
1256 {
1257 QemuOpts *opts;
1258 DriveInfo *dinfo;
1259
1260 if (!enable || drive_get_by_index(type, index)) {
1261 return;
1262 }
1263
1264 opts = drive_add(type, index, NULL, optstr);
1265 if (snapshot) {
1266 drive_enable_snapshot(NULL, opts, NULL);
1267 }
1268
1269 dinfo = drive_new(opts, type);
1270 if (!dinfo) {
1271 exit(1);
1272 }
1273 dinfo->is_default = true;
1274
1275 }
1276
1277 static QemuOptsList qemu_smp_opts = {
1278 .name = "smp-opts",
1279 .implied_opt_name = "cpus",
1280 .merge_lists = true,
1281 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1282 .desc = {
1283 {
1284 .name = "cpus",
1285 .type = QEMU_OPT_NUMBER,
1286 }, {
1287 .name = "sockets",
1288 .type = QEMU_OPT_NUMBER,
1289 }, {
1290 .name = "cores",
1291 .type = QEMU_OPT_NUMBER,
1292 }, {
1293 .name = "threads",
1294 .type = QEMU_OPT_NUMBER,
1295 }, {
1296 .name = "maxcpus",
1297 .type = QEMU_OPT_NUMBER,
1298 },
1299 { /*End of list */ }
1300 },
1301 };
1302
1303 static void smp_parse(QemuOpts *opts)
1304 {
1305 if (opts) {
1306 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1307 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1308 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1309 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1310
1311 /* compute missing values, prefer sockets over cores over threads */
1312 if (cpus == 0 || sockets == 0) {
1313 sockets = sockets > 0 ? sockets : 1;
1314 cores = cores > 0 ? cores : 1;
1315 threads = threads > 0 ? threads : 1;
1316 if (cpus == 0) {
1317 cpus = cores * threads * sockets;
1318 }
1319 } else if (cores == 0) {
1320 threads = threads > 0 ? threads : 1;
1321 cores = cpus / (sockets * threads);
1322 cores = cores > 0 ? cores : 1;
1323 } else if (threads == 0) {
1324 threads = cpus / (cores * sockets);
1325 threads = threads > 0 ? threads : 1;
1326 } else if (sockets * cores * threads < cpus) {
1327 error_report("cpu topology: "
1328 "sockets (%u) * cores (%u) * threads (%u) < "
1329 "smp_cpus (%u)",
1330 sockets, cores, threads, cpus);
1331 exit(1);
1332 }
1333
1334 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1335
1336 if (max_cpus < cpus) {
1337 error_report("maxcpus must be equal to or greater than smp");
1338 exit(1);
1339 }
1340
1341 if (sockets * cores * threads > max_cpus) {
1342 error_report("cpu topology: "
1343 "sockets (%u) * cores (%u) * threads (%u) > "
1344 "maxcpus (%u)",
1345 sockets, cores, threads, max_cpus);
1346 exit(1);
1347 }
1348
1349 smp_cpus = cpus;
1350 smp_cores = cores;
1351 smp_threads = threads;
1352 }
1353
1354 if (smp_cpus > 1) {
1355 Error *blocker = NULL;
1356 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1357 replay_add_blocker(blocker);
1358 }
1359 }
1360
1361 static void realtime_init(void)
1362 {
1363 if (enable_mlock) {
1364 if (os_mlock() < 0) {
1365 error_report("locking memory failed");
1366 exit(1);
1367 }
1368 }
1369 }
1370
1371
1372 static void configure_msg(QemuOpts *opts)
1373 {
1374 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1375 }
1376
1377 /***********************************************************/
1378 /* Semihosting */
1379
1380 typedef struct SemihostingConfig {
1381 bool enabled;
1382 SemihostingTarget target;
1383 const char **argv;
1384 int argc;
1385 const char *cmdline; /* concatenated argv */
1386 } SemihostingConfig;
1387
1388 static SemihostingConfig semihosting;
1389
1390 bool semihosting_enabled(void)
1391 {
1392 return semihosting.enabled;
1393 }
1394
1395 SemihostingTarget semihosting_get_target(void)
1396 {
1397 return semihosting.target;
1398 }
1399
1400 const char *semihosting_get_arg(int i)
1401 {
1402 if (i >= semihosting.argc) {
1403 return NULL;
1404 }
1405 return semihosting.argv[i];
1406 }
1407
1408 int semihosting_get_argc(void)
1409 {
1410 return semihosting.argc;
1411 }
1412
1413 const char *semihosting_get_cmdline(void)
1414 {
1415 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1416 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1417 }
1418 return semihosting.cmdline;
1419 }
1420
1421 static int add_semihosting_arg(void *opaque,
1422 const char *name, const char *val,
1423 Error **errp)
1424 {
1425 SemihostingConfig *s = opaque;
1426 if (strcmp(name, "arg") == 0) {
1427 s->argc++;
1428 /* one extra element as g_strjoinv() expects NULL-terminated array */
1429 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1430 s->argv[s->argc - 1] = val;
1431 s->argv[s->argc] = NULL;
1432 }
1433 return 0;
1434 }
1435
1436 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1437 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1438 {
1439 char *cmd_token;
1440
1441 /* argv[0] */
1442 add_semihosting_arg(&semihosting, "arg", file, NULL);
1443
1444 /* split -append and initialize argv[1..n] */
1445 cmd_token = strtok(g_strdup(cmd), " ");
1446 while (cmd_token) {
1447 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1448 cmd_token = strtok(NULL, " ");
1449 }
1450 }
1451
1452 /* Now we still need this for compatibility with XEN. */
1453 bool has_igd_gfx_passthru;
1454 static void igd_gfx_passthru(void)
1455 {
1456 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1457 }
1458
1459 /***********************************************************/
1460 /* USB devices */
1461
1462 static int usb_device_add(const char *devname)
1463 {
1464 USBDevice *dev = NULL;
1465
1466 if (!machine_usb(current_machine)) {
1467 return -1;
1468 }
1469
1470 dev = usbdevice_create(devname);
1471 if (!dev)
1472 return -1;
1473
1474 return 0;
1475 }
1476
1477 static int usb_parse(const char *cmdline)
1478 {
1479 int r;
1480 r = usb_device_add(cmdline);
1481 if (r < 0) {
1482 error_report("could not add USB device '%s'", cmdline);
1483 }
1484 return r;
1485 }
1486
1487 /***********************************************************/
1488 /* machine registration */
1489
1490 MachineState *current_machine;
1491
1492 static MachineClass *find_machine(const char *name)
1493 {
1494 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1495 MachineClass *mc = NULL;
1496
1497 for (el = machines; el; el = el->next) {
1498 MachineClass *temp = el->data;
1499
1500 if (!strcmp(temp->name, name)) {
1501 mc = temp;
1502 break;
1503 }
1504 if (temp->alias &&
1505 !strcmp(temp->alias, name)) {
1506 mc = temp;
1507 break;
1508 }
1509 }
1510
1511 g_slist_free(machines);
1512 return mc;
1513 }
1514
1515 MachineClass *find_default_machine(void)
1516 {
1517 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1518 MachineClass *mc = NULL;
1519
1520 for (el = machines; el; el = el->next) {
1521 MachineClass *temp = el->data;
1522
1523 if (temp->is_default) {
1524 mc = temp;
1525 break;
1526 }
1527 }
1528
1529 g_slist_free(machines);
1530 return mc;
1531 }
1532
1533 MachineInfoList *qmp_query_machines(Error **errp)
1534 {
1535 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1536 MachineInfoList *mach_list = NULL;
1537
1538 for (el = machines; el; el = el->next) {
1539 MachineClass *mc = el->data;
1540 MachineInfoList *entry;
1541 MachineInfo *info;
1542
1543 info = g_malloc0(sizeof(*info));
1544 if (mc->is_default) {
1545 info->has_is_default = true;
1546 info->is_default = true;
1547 }
1548
1549 if (mc->alias) {
1550 info->has_alias = true;
1551 info->alias = g_strdup(mc->alias);
1552 }
1553
1554 info->name = g_strdup(mc->name);
1555 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1556 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1557
1558 entry = g_malloc0(sizeof(*entry));
1559 entry->value = info;
1560 entry->next = mach_list;
1561 mach_list = entry;
1562 }
1563
1564 g_slist_free(machines);
1565 return mach_list;
1566 }
1567
1568 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1569 {
1570 ObjectProperty *prop;
1571 ObjectPropertyIterator iter;
1572
1573 if (!qemu_opt_has_help_opt(opts)) {
1574 return 0;
1575 }
1576
1577 object_property_iter_init(&iter, OBJECT(machine));
1578 while ((prop = object_property_iter_next(&iter))) {
1579 if (!prop->set) {
1580 continue;
1581 }
1582
1583 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1584 prop->name, prop->type);
1585 if (prop->description) {
1586 error_printf(" (%s)\n", prop->description);
1587 } else {
1588 error_printf("\n");
1589 }
1590 }
1591
1592 return 1;
1593 }
1594
1595 /***********************************************************/
1596 /* main execution loop */
1597
1598 struct vm_change_state_entry {
1599 VMChangeStateHandler *cb;
1600 void *opaque;
1601 QLIST_ENTRY (vm_change_state_entry) entries;
1602 };
1603
1604 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1605
1606 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1607 void *opaque)
1608 {
1609 VMChangeStateEntry *e;
1610
1611 e = g_malloc0(sizeof (*e));
1612
1613 e->cb = cb;
1614 e->opaque = opaque;
1615 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1616 return e;
1617 }
1618
1619 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1620 {
1621 QLIST_REMOVE (e, entries);
1622 g_free (e);
1623 }
1624
1625 void vm_state_notify(int running, RunState state)
1626 {
1627 VMChangeStateEntry *e, *next;
1628
1629 trace_vm_state_notify(running, state);
1630
1631 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1632 e->cb(e->opaque, running, state);
1633 }
1634 }
1635
1636 static ShutdownCause reset_requested;
1637 static ShutdownCause shutdown_requested;
1638 static int shutdown_signal;
1639 static pid_t shutdown_pid;
1640 static int powerdown_requested;
1641 static int debug_requested;
1642 static int suspend_requested;
1643 static WakeupReason wakeup_reason;
1644 static NotifierList powerdown_notifiers =
1645 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1646 static NotifierList suspend_notifiers =
1647 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1648 static NotifierList wakeup_notifiers =
1649 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1650 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1651
1652 ShutdownCause qemu_shutdown_requested_get(void)
1653 {
1654 return shutdown_requested;
1655 }
1656
1657 ShutdownCause qemu_reset_requested_get(void)
1658 {
1659 return reset_requested;
1660 }
1661
1662 static int qemu_shutdown_requested(void)
1663 {
1664 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1665 }
1666
1667 static void qemu_kill_report(void)
1668 {
1669 if (!qtest_driver() && shutdown_signal) {
1670 if (shutdown_pid == 0) {
1671 /* This happens for eg ^C at the terminal, so it's worth
1672 * avoiding printing an odd message in that case.
1673 */
1674 error_report("terminating on signal %d", shutdown_signal);
1675 } else {
1676 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1677
1678 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1679 shutdown_signal, shutdown_pid,
1680 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1681 g_free(shutdown_cmd);
1682 }
1683 shutdown_signal = 0;
1684 }
1685 }
1686
1687 static ShutdownCause qemu_reset_requested(void)
1688 {
1689 ShutdownCause r = reset_requested;
1690
1691 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1692 reset_requested = SHUTDOWN_CAUSE_NONE;
1693 return r;
1694 }
1695 return SHUTDOWN_CAUSE_NONE;
1696 }
1697
1698 static int qemu_suspend_requested(void)
1699 {
1700 int r = suspend_requested;
1701 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1702 suspend_requested = 0;
1703 return r;
1704 }
1705 return false;
1706 }
1707
1708 static WakeupReason qemu_wakeup_requested(void)
1709 {
1710 return wakeup_reason;
1711 }
1712
1713 static int qemu_powerdown_requested(void)
1714 {
1715 int r = powerdown_requested;
1716 powerdown_requested = 0;
1717 return r;
1718 }
1719
1720 static int qemu_debug_requested(void)
1721 {
1722 int r = debug_requested;
1723 debug_requested = 0;
1724 return r;
1725 }
1726
1727 /*
1728 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1729 */
1730 void qemu_system_reset(ShutdownCause reason)
1731 {
1732 MachineClass *mc;
1733
1734 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1735
1736 cpu_synchronize_all_states();
1737
1738 if (mc && mc->reset) {
1739 mc->reset();
1740 } else {
1741 qemu_devices_reset();
1742 }
1743 if (reason) {
1744 qapi_event_send_reset(shutdown_caused_by_guest(reason),
1745 &error_abort);
1746 }
1747 cpu_synchronize_all_post_reset();
1748 }
1749
1750 void qemu_system_guest_panicked(GuestPanicInformation *info)
1751 {
1752 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1753
1754 if (current_cpu) {
1755 current_cpu->crash_occurred = true;
1756 }
1757 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1758 !!info, info, &error_abort);
1759 vm_stop(RUN_STATE_GUEST_PANICKED);
1760 if (!no_shutdown) {
1761 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1762 !!info, info, &error_abort);
1763 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1764 }
1765
1766 if (info) {
1767 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1768 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1769 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1770 info->u.hyper_v.arg1,
1771 info->u.hyper_v.arg2,
1772 info->u.hyper_v.arg3,
1773 info->u.hyper_v.arg4,
1774 info->u.hyper_v.arg5);
1775 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1776 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1777 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1778 info->u.s390.core,
1779 S390CrashReason_str(info->u.s390.reason),
1780 info->u.s390.psw_mask,
1781 info->u.s390.psw_addr);
1782 }
1783 qapi_free_GuestPanicInformation(info);
1784 }
1785 }
1786
1787 void qemu_system_reset_request(ShutdownCause reason)
1788 {
1789 if (no_reboot) {
1790 shutdown_requested = reason;
1791 } else {
1792 reset_requested = reason;
1793 }
1794 cpu_stop_current();
1795 qemu_notify_event();
1796 }
1797
1798 static void qemu_system_suspend(void)
1799 {
1800 pause_all_vcpus();
1801 notifier_list_notify(&suspend_notifiers, NULL);
1802 runstate_set(RUN_STATE_SUSPENDED);
1803 qapi_event_send_suspend(&error_abort);
1804 }
1805
1806 void qemu_system_suspend_request(void)
1807 {
1808 if (runstate_check(RUN_STATE_SUSPENDED)) {
1809 return;
1810 }
1811 suspend_requested = 1;
1812 cpu_stop_current();
1813 qemu_notify_event();
1814 }
1815
1816 void qemu_register_suspend_notifier(Notifier *notifier)
1817 {
1818 notifier_list_add(&suspend_notifiers, notifier);
1819 }
1820
1821 void qemu_system_wakeup_request(WakeupReason reason)
1822 {
1823 trace_system_wakeup_request(reason);
1824
1825 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1826 return;
1827 }
1828 if (!(wakeup_reason_mask & (1 << reason))) {
1829 return;
1830 }
1831 runstate_set(RUN_STATE_RUNNING);
1832 wakeup_reason = reason;
1833 qemu_notify_event();
1834 }
1835
1836 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1837 {
1838 if (enabled) {
1839 wakeup_reason_mask |= (1 << reason);
1840 } else {
1841 wakeup_reason_mask &= ~(1 << reason);
1842 }
1843 }
1844
1845 void qemu_register_wakeup_notifier(Notifier *notifier)
1846 {
1847 notifier_list_add(&wakeup_notifiers, notifier);
1848 }
1849
1850 void qemu_system_killed(int signal, pid_t pid)
1851 {
1852 shutdown_signal = signal;
1853 shutdown_pid = pid;
1854 no_shutdown = 0;
1855
1856 /* Cannot call qemu_system_shutdown_request directly because
1857 * we are in a signal handler.
1858 */
1859 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1860 qemu_notify_event();
1861 }
1862
1863 void qemu_system_shutdown_request(ShutdownCause reason)
1864 {
1865 trace_qemu_system_shutdown_request(reason);
1866 replay_shutdown_request(reason);
1867 shutdown_requested = reason;
1868 qemu_notify_event();
1869 }
1870
1871 static void qemu_system_powerdown(void)
1872 {
1873 qapi_event_send_powerdown(&error_abort);
1874 notifier_list_notify(&powerdown_notifiers, NULL);
1875 }
1876
1877 void qemu_system_powerdown_request(void)
1878 {
1879 trace_qemu_system_powerdown_request();
1880 powerdown_requested = 1;
1881 qemu_notify_event();
1882 }
1883
1884 void qemu_register_powerdown_notifier(Notifier *notifier)
1885 {
1886 notifier_list_add(&powerdown_notifiers, notifier);
1887 }
1888
1889 void qemu_system_debug_request(void)
1890 {
1891 debug_requested = 1;
1892 qemu_notify_event();
1893 }
1894
1895 static bool main_loop_should_exit(void)
1896 {
1897 RunState r;
1898 ShutdownCause request;
1899
1900 if (qemu_debug_requested()) {
1901 vm_stop(RUN_STATE_DEBUG);
1902 }
1903 if (qemu_suspend_requested()) {
1904 qemu_system_suspend();
1905 }
1906 request = qemu_shutdown_requested();
1907 if (request) {
1908 qemu_kill_report();
1909 qapi_event_send_shutdown(shutdown_caused_by_guest(request),
1910 &error_abort);
1911 if (no_shutdown) {
1912 vm_stop(RUN_STATE_SHUTDOWN);
1913 } else {
1914 return true;
1915 }
1916 }
1917 request = qemu_reset_requested();
1918 if (request) {
1919 pause_all_vcpus();
1920 qemu_system_reset(request);
1921 resume_all_vcpus();
1922 if (!runstate_check(RUN_STATE_RUNNING) &&
1923 !runstate_check(RUN_STATE_INMIGRATE)) {
1924 runstate_set(RUN_STATE_PRELAUNCH);
1925 }
1926 }
1927 if (qemu_wakeup_requested()) {
1928 pause_all_vcpus();
1929 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1930 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1931 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1932 resume_all_vcpus();
1933 qapi_event_send_wakeup(&error_abort);
1934 }
1935 if (qemu_powerdown_requested()) {
1936 qemu_system_powerdown();
1937 }
1938 if (qemu_vmstop_requested(&r)) {
1939 vm_stop(r);
1940 }
1941 return false;
1942 }
1943
1944 static void main_loop(void)
1945 {
1946 #ifdef CONFIG_PROFILER
1947 int64_t ti;
1948 #endif
1949 do {
1950 #ifdef CONFIG_PROFILER
1951 ti = profile_getclock();
1952 #endif
1953 main_loop_wait(false);
1954 #ifdef CONFIG_PROFILER
1955 dev_time += profile_getclock() - ti;
1956 #endif
1957 } while (!main_loop_should_exit());
1958 }
1959
1960 static void version(void)
1961 {
1962 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1963 QEMU_COPYRIGHT "\n");
1964 }
1965
1966 static void QEMU_NORETURN help(int exitcode)
1967 {
1968 version();
1969 printf("usage: %s [options] [disk_image]\n\n"
1970 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1971 error_get_progname());
1972
1973 #define QEMU_OPTIONS_GENERATE_HELP
1974 #include "qemu-options-wrapper.h"
1975
1976 printf("\nDuring emulation, the following keys are useful:\n"
1977 "ctrl-alt-f toggle full screen\n"
1978 "ctrl-alt-n switch to virtual console 'n'\n"
1979 "ctrl-alt toggle mouse and keyboard grab\n"
1980 "\n"
1981 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1982 "\n"
1983 QEMU_HELP_BOTTOM "\n");
1984
1985 exit(exitcode);
1986 }
1987
1988 #define HAS_ARG 0x0001
1989
1990 typedef struct QEMUOption {
1991 const char *name;
1992 int flags;
1993 int index;
1994 uint32_t arch_mask;
1995 } QEMUOption;
1996
1997 static const QEMUOption qemu_options[] = {
1998 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1999 #define QEMU_OPTIONS_GENERATE_OPTIONS
2000 #include "qemu-options-wrapper.h"
2001 { NULL },
2002 };
2003
2004 typedef struct VGAInterfaceInfo {
2005 const char *opt_name; /* option name */
2006 const char *name; /* human-readable name */
2007 /* Class names indicating that support is available.
2008 * If no class is specified, the interface is always available */
2009 const char *class_names[2];
2010 } VGAInterfaceInfo;
2011
2012 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
2013 [VGA_NONE] = {
2014 .opt_name = "none",
2015 },
2016 [VGA_STD] = {
2017 .opt_name = "std",
2018 .name = "standard VGA",
2019 .class_names = { "VGA", "isa-vga" },
2020 },
2021 [VGA_CIRRUS] = {
2022 .opt_name = "cirrus",
2023 .name = "Cirrus VGA",
2024 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
2025 },
2026 [VGA_VMWARE] = {
2027 .opt_name = "vmware",
2028 .name = "VMWare SVGA",
2029 .class_names = { "vmware-svga" },
2030 },
2031 [VGA_VIRTIO] = {
2032 .opt_name = "virtio",
2033 .name = "Virtio VGA",
2034 .class_names = { "virtio-vga" },
2035 },
2036 [VGA_QXL] = {
2037 .opt_name = "qxl",
2038 .name = "QXL VGA",
2039 .class_names = { "qxl-vga" },
2040 },
2041 [VGA_TCX] = {
2042 .opt_name = "tcx",
2043 .name = "TCX framebuffer",
2044 .class_names = { "SUNW,tcx" },
2045 },
2046 [VGA_CG3] = {
2047 .opt_name = "cg3",
2048 .name = "CG3 framebuffer",
2049 .class_names = { "cgthree" },
2050 },
2051 [VGA_XENFB] = {
2052 .opt_name = "xenfb",
2053 },
2054 };
2055
2056 static bool vga_interface_available(VGAInterfaceType t)
2057 {
2058 VGAInterfaceInfo *ti = &vga_interfaces[t];
2059
2060 assert(t < VGA_TYPE_MAX);
2061 return !ti->class_names[0] ||
2062 object_class_by_name(ti->class_names[0]) ||
2063 object_class_by_name(ti->class_names[1]);
2064 }
2065
2066 static void select_vgahw(const char *p)
2067 {
2068 const char *opts;
2069 int t;
2070
2071 assert(vga_interface_type == VGA_NONE);
2072 for (t = 0; t < VGA_TYPE_MAX; t++) {
2073 VGAInterfaceInfo *ti = &vga_interfaces[t];
2074 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2075 if (!vga_interface_available(t)) {
2076 error_report("%s not available", ti->name);
2077 exit(1);
2078 }
2079 vga_interface_type = t;
2080 break;
2081 }
2082 }
2083 if (t == VGA_TYPE_MAX) {
2084 invalid_vga:
2085 error_report("unknown vga type: %s", p);
2086 exit(1);
2087 }
2088 while (*opts) {
2089 const char *nextopt;
2090
2091 if (strstart(opts, ",retrace=", &nextopt)) {
2092 opts = nextopt;
2093 if (strstart(opts, "dumb", &nextopt))
2094 vga_retrace_method = VGA_RETRACE_DUMB;
2095 else if (strstart(opts, "precise", &nextopt))
2096 vga_retrace_method = VGA_RETRACE_PRECISE;
2097 else goto invalid_vga;
2098 } else goto invalid_vga;
2099 opts = nextopt;
2100 }
2101 }
2102
2103 static void parse_display(const char *p)
2104 {
2105 const char *opts;
2106
2107 if (strstart(p, "sdl", &opts)) {
2108 dpy.type = DISPLAY_TYPE_SDL;
2109 while (*opts) {
2110 const char *nextopt;
2111
2112 if (strstart(opts, ",frame=", &nextopt)) {
2113 g_printerr("The frame= sdl option is deprecated, and will be\n"
2114 "removed in a future release.\n");
2115 opts = nextopt;
2116 if (strstart(opts, "on", &nextopt)) {
2117 no_frame = 0;
2118 } else if (strstart(opts, "off", &nextopt)) {
2119 no_frame = 1;
2120 } else {
2121 goto invalid_sdl_args;
2122 }
2123 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2124 opts = nextopt;
2125 if (strstart(opts, "on", &nextopt)) {
2126 alt_grab = 1;
2127 } else if (strstart(opts, "off", &nextopt)) {
2128 alt_grab = 0;
2129 } else {
2130 goto invalid_sdl_args;
2131 }
2132 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2133 opts = nextopt;
2134 if (strstart(opts, "on", &nextopt)) {
2135 ctrl_grab = 1;
2136 } else if (strstart(opts, "off", &nextopt)) {
2137 ctrl_grab = 0;
2138 } else {
2139 goto invalid_sdl_args;
2140 }
2141 } else if (strstart(opts, ",window_close=", &nextopt)) {
2142 opts = nextopt;
2143 dpy.has_window_close = true;
2144 if (strstart(opts, "on", &nextopt)) {
2145 dpy.window_close = true;
2146 } else if (strstart(opts, "off", &nextopt)) {
2147 dpy.window_close = false;
2148 } else {
2149 goto invalid_sdl_args;
2150 }
2151 } else if (strstart(opts, ",gl=", &nextopt)) {
2152 opts = nextopt;
2153 dpy.has_gl = true;
2154 if (strstart(opts, "on", &nextopt)) {
2155 dpy.gl = true;
2156 } else if (strstart(opts, "off", &nextopt)) {
2157 dpy.gl = false;
2158 } else {
2159 goto invalid_sdl_args;
2160 }
2161 } else {
2162 invalid_sdl_args:
2163 error_report("invalid SDL option string");
2164 exit(1);
2165 }
2166 opts = nextopt;
2167 }
2168 } else if (strstart(p, "vnc", &opts)) {
2169 if (*opts == '=') {
2170 vnc_parse(opts + 1, &error_fatal);
2171 } else {
2172 error_report("VNC requires a display argument vnc=<display>");
2173 exit(1);
2174 }
2175 } else if (strstart(p, "egl-headless", &opts)) {
2176 dpy.type = DISPLAY_TYPE_EGL_HEADLESS;
2177 } else if (strstart(p, "curses", &opts)) {
2178 dpy.type = DISPLAY_TYPE_CURSES;
2179 } else if (strstart(p, "gtk", &opts)) {
2180 dpy.type = DISPLAY_TYPE_GTK;
2181 while (*opts) {
2182 const char *nextopt;
2183
2184 if (strstart(opts, ",grab_on_hover=", &nextopt)) {
2185 opts = nextopt;
2186 dpy.u.gtk.has_grab_on_hover = true;
2187 if (strstart(opts, "on", &nextopt)) {
2188 dpy.u.gtk.grab_on_hover = true;
2189 } else if (strstart(opts, "off", &nextopt)) {
2190 dpy.u.gtk.grab_on_hover = false;
2191 } else {
2192 goto invalid_gtk_args;
2193 }
2194 } else if (strstart(opts, ",gl=", &nextopt)) {
2195 opts = nextopt;
2196 dpy.has_gl = true;
2197 if (strstart(opts, "on", &nextopt)) {
2198 dpy.gl = true;
2199 } else if (strstart(opts, "off", &nextopt)) {
2200 dpy.gl = false;
2201 } else {
2202 goto invalid_gtk_args;
2203 }
2204 } else {
2205 invalid_gtk_args:
2206 error_report("invalid GTK option string");
2207 exit(1);
2208 }
2209 opts = nextopt;
2210 }
2211 } else if (strstart(p, "none", &opts)) {
2212 dpy.type = DISPLAY_TYPE_NONE;
2213 } else {
2214 error_report("unknown display type");
2215 exit(1);
2216 }
2217 }
2218
2219 static int balloon_parse(const char *arg)
2220 {
2221 QemuOpts *opts;
2222
2223 warn_report("This option is deprecated. "
2224 "Use '--device virtio-balloon' to enable the balloon device.");
2225
2226 if (strcmp(arg, "none") == 0) {
2227 return 0;
2228 }
2229
2230 if (!strncmp(arg, "virtio", 6)) {
2231 if (arg[6] == ',') {
2232 /* have params -> parse them */
2233 opts = qemu_opts_parse_noisily(qemu_find_opts("device"), arg + 7,
2234 false);
2235 if (!opts)
2236 return -1;
2237 } else {
2238 /* create empty opts */
2239 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
2240 &error_abort);
2241 }
2242 qemu_opt_set(opts, "driver", "virtio-balloon", &error_abort);
2243 return 0;
2244 }
2245
2246 return -1;
2247 }
2248
2249 #if defined(CONFIG_RUBY)
2250 /* Ruby interface for QEMU. See README.EXT for programming example. */
2251 #warning mit ruby
2252 #include <ruby.h>
2253
2254 static VALUE qemu_open(int argc, VALUE *argv, VALUE klass)
2255 {
2256 int i;
2257 for (i = 0; i < argc; i++) {
2258 argv[i] = StringValue(argv[i]);
2259 fprintf(stderr, "argv[%d] = %s\n", i, StringValuePtr(argv[i]));
2260 }
2261 //~ if (rb_scan_args(argc, argv, "11", &file, &vmode) == 1) {
2262 //~ mode = 0666; /* default value */
2263 //~ }
2264 return INT2FIX(argc);
2265 }
2266
2267 void Init_qemu(void)
2268 {
2269 printf("%s\n", __func__);
2270 VALUE cQEMU = rb_define_class("QEMU", rb_cObject);
2271 rb_define_singleton_method(cQEMU, "run", qemu_open, -1);
2272 #if 0
2273 rb_define_method();
2274 #endif
2275 }
2276 #endif /* CONFIG_RUBY */
2277
2278 #if defined(CONFIG_DLL)
2279 BOOL APIENTRY DllMain(HINSTANCE hModule, DWORD ul_reason_for_call, LPVOID data)
2280 {
2281 return FALSE;
2282 }
2283 #endif /* CONFIG_DLL */
2284
2285 char *qemu_find_file(int type, const char *name)
2286 {
2287 int i;
2288 const char *subdir;
2289 char *buf;
2290
2291 /* Try the name as a straight path first */
2292 if (access(name, R_OK) == 0) {
2293 trace_load_file(name, name);
2294 return g_strdup(name);
2295 }
2296
2297 switch (type) {
2298 case QEMU_FILE_TYPE_BIOS:
2299 subdir = "";
2300 break;
2301 case QEMU_FILE_TYPE_KEYMAP:
2302 subdir = "keymaps/";
2303 break;
2304 default:
2305 abort();
2306 }
2307
2308 for (i = 0; i < data_dir_idx; i++) {
2309 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2310 if (access(buf, R_OK) == 0) {
2311 trace_load_file(name, buf);
2312 return buf;
2313 }
2314 g_free(buf);
2315 }
2316 return NULL;
2317 }
2318
2319 static void qemu_add_data_dir(const char *path)
2320 {
2321 int i;
2322
2323 if (path == NULL) {
2324 return;
2325 }
2326 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2327 return;
2328 }
2329 for (i = 0; i < data_dir_idx; i++) {
2330 if (strcmp(data_dir[i], path) == 0) {
2331 return; /* duplicate */
2332 }
2333 }
2334 data_dir[data_dir_idx++] = g_strdup(path);
2335 }
2336
2337 static inline bool nonempty_str(const char *str)
2338 {
2339 return str && *str;
2340 }
2341
2342 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2343 {
2344 gchar *buf;
2345 size_t size;
2346 const char *name, *file, *str;
2347 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2348
2349 if (fw_cfg == NULL) {
2350 error_report("fw_cfg device not available");
2351 return -1;
2352 }
2353 name = qemu_opt_get(opts, "name");
2354 file = qemu_opt_get(opts, "file");
2355 str = qemu_opt_get(opts, "string");
2356
2357 /* we need name and either a file or the content string */
2358 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2359 error_report("invalid argument(s)");
2360 return -1;
2361 }
2362 if (nonempty_str(file) && nonempty_str(str)) {
2363 error_report("file and string are mutually exclusive");
2364 return -1;
2365 }
2366 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2367 error_report("name too long (max. %d char)", FW_CFG_MAX_FILE_PATH - 1);
2368 return -1;
2369 }
2370 if (strncmp(name, "opt/", 4) != 0) {
2371 warn_report("externally provided fw_cfg item names "
2372 "should be prefixed with \"opt/\"");
2373 }
2374 if (nonempty_str(str)) {
2375 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2376 buf = g_memdup(str, size);
2377 } else {
2378 if (!g_file_get_contents(file, &buf, &size, NULL)) {
2379 error_report("can't load %s", file);
2380 return -1;
2381 }
2382 }
2383 /* For legacy, keep user files in a specific global order. */
2384 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2385 fw_cfg_add_file(fw_cfg, name, buf, size);
2386 fw_cfg_reset_order_override(fw_cfg);
2387 return 0;
2388 }
2389
2390 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2391 {
2392 return qdev_device_help(opts);
2393 }
2394
2395 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2396 {
2397 Error *err = NULL;
2398 DeviceState *dev;
2399
2400 dev = qdev_device_add(opts, &err);
2401 if (!dev) {
2402 error_report_err(err);
2403 return -1;
2404 }
2405 object_unref(OBJECT(dev));
2406 return 0;
2407 }
2408
2409 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2410 {
2411 Error *local_err = NULL;
2412
2413 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2414 if (local_err) {
2415 error_report_err(local_err);
2416 return -1;
2417 }
2418 exit(0);
2419 }
2420 return 0;
2421 }
2422
2423 #ifdef CONFIG_VIRTFS
2424 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2425 {
2426 return qemu_fsdev_add(opts);
2427 }
2428 #endif
2429
2430 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2431 {
2432 Chardev *chr;
2433 const char *chardev;
2434 const char *mode;
2435 int flags;
2436
2437 mode = qemu_opt_get(opts, "mode");
2438 if (mode == NULL) {
2439 mode = "readline";
2440 }
2441 if (strcmp(mode, "readline") == 0) {
2442 flags = MONITOR_USE_READLINE;
2443 } else if (strcmp(mode, "control") == 0) {
2444 flags = MONITOR_USE_CONTROL;
2445 } else {
2446 error_report("unknown monitor mode \"%s\"", mode);
2447 exit(1);
2448 }
2449
2450 if (qemu_opt_get_bool(opts, "pretty", 0))
2451 flags |= MONITOR_USE_PRETTY;
2452
2453 /* OOB is off by default */
2454 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2455 flags |= MONITOR_USE_OOB;
2456 }
2457
2458 chardev = qemu_opt_get(opts, "chardev");
2459 chr = qemu_chr_find(chardev);
2460 if (chr == NULL) {
2461 error_report("chardev \"%s\" not found", chardev);
2462 exit(1);
2463 }
2464
2465 monitor_init(chr, flags);
2466 return 0;
2467 }
2468
2469 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2470 {
2471 static int monitor_device_index = 0;
2472 QemuOpts *opts;
2473 const char *p;
2474 char label[32];
2475
2476 if (strstart(optarg, "chardev:", &p)) {
2477 snprintf(label, sizeof(label), "%s", p);
2478 } else {
2479 snprintf(label, sizeof(label), "compat_monitor%d",
2480 monitor_device_index);
2481 opts = qemu_chr_parse_compat(label, optarg);
2482 if (!opts) {
2483 error_report("parse error: %s", optarg);
2484 exit(1);
2485 }
2486 }
2487
2488 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2489 qemu_opt_set(opts, "mode", mode, &error_abort);
2490 qemu_opt_set(opts, "chardev", label, &error_abort);
2491 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2492 monitor_device_index++;
2493 }
2494
2495 struct device_config {
2496 enum {
2497 DEV_USB, /* -usbdevice */
2498 DEV_BT, /* -bt */
2499 DEV_SERIAL, /* -serial */
2500 DEV_PARALLEL, /* -parallel */
2501 DEV_VIRTCON, /* -virtioconsole */
2502 DEV_DEBUGCON, /* -debugcon */
2503 DEV_GDB, /* -gdb, -s */
2504 DEV_SCLP, /* s390 sclp */
2505 } type;
2506 const char *cmdline;
2507 Location loc;
2508 QTAILQ_ENTRY(device_config) next;
2509 };
2510
2511 static QTAILQ_HEAD(, device_config) device_configs =
2512 QTAILQ_HEAD_INITIALIZER(device_configs);
2513
2514 static void add_device_config(int type, const char *cmdline)
2515 {
2516 struct device_config *conf;
2517
2518 conf = g_malloc0(sizeof(*conf));
2519 conf->type = type;
2520 conf->cmdline = cmdline;
2521 loc_save(&conf->loc);
2522 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2523 }
2524
2525 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2526 {
2527 struct device_config *conf;
2528 int rc;
2529
2530 QTAILQ_FOREACH(conf, &device_configs, next) {
2531 if (conf->type != type)
2532 continue;
2533 loc_push_restore(&conf->loc);
2534 rc = func(conf->cmdline);
2535 loc_pop(&conf->loc);
2536 if (rc) {
2537 return rc;
2538 }
2539 }
2540 return 0;
2541 }
2542
2543 static int serial_parse(const char *devname)
2544 {
2545 static int index = 0;
2546 char label[32];
2547
2548 if (strcmp(devname, "none") == 0)
2549 return 0;
2550 if (index == MAX_SERIAL_PORTS) {
2551 error_report("too many serial ports");
2552 exit(1);
2553 }
2554 snprintf(label, sizeof(label), "serial%d", index);
2555 serial_hds[index] = qemu_chr_new(label, devname);
2556 if (!serial_hds[index]) {
2557 error_report("could not connect serial device"
2558 " to character backend '%s'", devname);
2559 return -1;
2560 }
2561 index++;
2562 return 0;
2563 }
2564
2565 static int parallel_parse(const char *devname)
2566 {
2567 static int index = 0;
2568 char label[32];
2569
2570 if (strcmp(devname, "none") == 0)
2571 return 0;
2572 if (index == MAX_PARALLEL_PORTS) {
2573 error_report("too many parallel ports");
2574 exit(1);
2575 }
2576 snprintf(label, sizeof(label), "parallel%d", index);
2577 parallel_hds[index] = qemu_chr_new(label, devname);
2578 if (!parallel_hds[index]) {
2579 error_report("could not connect parallel device"
2580 " to character backend '%s'", devname);
2581 return -1;
2582 }
2583 index++;
2584 return 0;
2585 }
2586
2587 static int virtcon_parse(const char *devname)
2588 {
2589 QemuOptsList *device = qemu_find_opts("device");
2590 static int index = 0;
2591 char label[32];
2592 QemuOpts *bus_opts, *dev_opts;
2593
2594 if (strcmp(devname, "none") == 0)
2595 return 0;
2596 if (index == MAX_VIRTIO_CONSOLES) {
2597 error_report("too many virtio consoles");
2598 exit(1);
2599 }
2600
2601 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2602 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2603
2604 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2605 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2606
2607 snprintf(label, sizeof(label), "virtcon%d", index);
2608 virtcon_hds[index] = qemu_chr_new(label, devname);
2609 if (!virtcon_hds[index]) {
2610 error_report("could not connect virtio console"
2611 " to character backend '%s'", devname);
2612 return -1;
2613 }
2614 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2615
2616 index++;
2617 return 0;
2618 }
2619
2620 static int sclp_parse(const char *devname)
2621 {
2622 QemuOptsList *device = qemu_find_opts("device");
2623 static int index = 0;
2624 char label[32];
2625 QemuOpts *dev_opts;
2626
2627 if (strcmp(devname, "none") == 0) {
2628 return 0;
2629 }
2630 if (index == MAX_SCLP_CONSOLES) {
2631 error_report("too many sclp consoles");
2632 exit(1);
2633 }
2634
2635 assert(arch_type == QEMU_ARCH_S390X);
2636
2637 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2638 qemu_opt_set(dev_opts, "driver", "sclpconsole", &error_abort);
2639
2640 snprintf(label, sizeof(label), "sclpcon%d", index);
2641 sclp_hds[index] = qemu_chr_new(label, devname);
2642 if (!sclp_hds[index]) {
2643 error_report("could not connect sclp console"
2644 " to character backend '%s'", devname);
2645 return -1;
2646 }
2647 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2648
2649 index++;
2650 return 0;
2651 }
2652
2653 static int debugcon_parse(const char *devname)
2654 {
2655 QemuOpts *opts;
2656
2657 if (!qemu_chr_new("debugcon", devname)) {
2658 exit(1);
2659 }
2660 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2661 if (!opts) {
2662 error_report("already have a debugcon device");
2663 exit(1);
2664 }
2665 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2666 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2667 return 0;
2668 }
2669
2670 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2671 {
2672 const MachineClass *mc1 = a, *mc2 = b;
2673 int res;
2674
2675 if (mc1->family == NULL) {
2676 if (mc2->family == NULL) {
2677 /* Compare standalone machine types against each other; they sort
2678 * in increasing order.
2679 */
2680 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2681 object_class_get_name(OBJECT_CLASS(mc2)));
2682 }
2683
2684 /* Standalone machine types sort after families. */
2685 return 1;
2686 }
2687
2688 if (mc2->family == NULL) {
2689 /* Families sort before standalone machine types. */
2690 return -1;
2691 }
2692
2693 /* Families sort between each other alphabetically increasingly. */
2694 res = strcmp(mc1->family, mc2->family);
2695 if (res != 0) {
2696 return res;
2697 }
2698
2699 /* Within the same family, machine types sort in decreasing order. */
2700 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2701 object_class_get_name(OBJECT_CLASS(mc1)));
2702 }
2703
2704 static MachineClass *machine_parse(const char *name)
2705 {
2706 MachineClass *mc = NULL;
2707 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2708
2709 if (name) {
2710 mc = find_machine(name);
2711 }
2712 if (mc) {
2713 g_slist_free(machines);
2714 return mc;
2715 }
2716 if (name && !is_help_option(name)) {
2717 error_report("unsupported machine type");
2718 error_printf("Use -machine help to list supported machines\n");
2719 } else {
2720 printf("Supported machines are:\n");
2721 machines = g_slist_sort(machines, machine_class_cmp);
2722 for (el = machines; el; el = el->next) {
2723 MachineClass *mc = el->data;
2724 if (mc->alias) {
2725 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2726 }
2727 printf("%-20s %s%s\n", mc->name, mc->desc,
2728 mc->is_default ? " (default)" : "");
2729 }
2730 }
2731
2732 g_slist_free(machines);
2733 exit(!name || !is_help_option(name));
2734 }
2735
2736 void qemu_add_exit_notifier(Notifier *notify)
2737 {
2738 notifier_list_add(&exit_notifiers, notify);
2739 }
2740
2741 void qemu_remove_exit_notifier(Notifier *notify)
2742 {
2743 notifier_remove(notify);
2744 }
2745
2746 static void qemu_run_exit_notifiers(void)
2747 {
2748 notifier_list_notify(&exit_notifiers, NULL);
2749 }
2750
2751 bool machine_init_done;
2752
2753 void qemu_add_machine_init_done_notifier(Notifier *notify)
2754 {
2755 notifier_list_add(&machine_init_done_notifiers, notify);
2756 if (machine_init_done) {
2757 notify->notify(notify, NULL);
2758 }
2759 }
2760
2761 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2762 {
2763 notifier_remove(notify);
2764 }
2765
2766 static void qemu_run_machine_init_done_notifiers(void)
2767 {
2768 machine_init_done = true;
2769 notifier_list_notify(&machine_init_done_notifiers, NULL);
2770 }
2771
2772 static const QEMUOption *lookup_opt(int argc, char **argv,
2773 const char **poptarg, int *poptind)
2774 {
2775 const QEMUOption *popt;
2776 int optind = *poptind;
2777 char *r = argv[optind];
2778 const char *optarg;
2779
2780 loc_set_cmdline(argv, optind, 1);
2781 optind++;
2782 /* Treat --foo the same as -foo. */
2783 if (r[1] == '-')
2784 r++;
2785 popt = qemu_options;
2786 for(;;) {
2787 if (!popt->name) {
2788 error_report("invalid option");
2789 exit(1);
2790 }
2791 if (!strcmp(popt->name, r + 1))
2792 break;
2793 popt++;
2794 }
2795 if (popt->flags & HAS_ARG) {
2796 if (optind >= argc) {
2797 error_report("requires an argument");
2798 exit(1);
2799 }
2800 optarg = argv[optind++];
2801 loc_set_cmdline(argv, optind - 2, 2);
2802 } else {
2803 optarg = NULL;
2804 }
2805
2806 *poptarg = optarg;
2807 *poptind = optind;
2808
2809 return popt;
2810 }
2811
2812 static MachineClass *select_machine(void)
2813 {
2814 MachineClass *machine_class = find_default_machine();
2815 const char *optarg;
2816 QemuOpts *opts;
2817 Location loc;
2818
2819 loc_push_none(&loc);
2820
2821 opts = qemu_get_machine_opts();
2822 qemu_opts_loc_restore(opts);
2823
2824 optarg = qemu_opt_get(opts, "type");
2825 if (optarg) {
2826 machine_class = machine_parse(optarg);
2827 }
2828
2829 if (!machine_class) {
2830 error_report("No machine specified, and there is no default");
2831 error_printf("Use -machine help to list supported machines\n");
2832 exit(1);
2833 }
2834
2835 loc_pop(&loc);
2836 return machine_class;
2837 }
2838
2839 static int machine_set_property(void *opaque,
2840 const char *name, const char *value,
2841 Error **errp)
2842 {
2843 Object *obj = OBJECT(opaque);
2844 Error *local_err = NULL;
2845 char *p, *qom_name;
2846
2847 if (strcmp(name, "type") == 0) {
2848 return 0;
2849 }
2850
2851 qom_name = g_strdup(name);
2852 for (p = qom_name; *p; p++) {
2853 if (*p == '_') {
2854 *p = '-';
2855 }
2856 }
2857
2858 object_property_parse(obj, value, qom_name, &local_err);
2859 g_free(qom_name);
2860
2861 if (local_err) {
2862 error_report_err(local_err);
2863 return -1;
2864 }
2865
2866 return 0;
2867 }
2868
2869
2870 /*
2871 * Initial object creation happens before all other
2872 * QEMU data types are created. The majority of objects
2873 * can be created at this point. The rng-egd object
2874 * cannot be created here, as it depends on the chardev
2875 * already existing.
2876 */
2877 static bool object_create_initial(const char *type)
2878 {
2879 if (g_str_equal(type, "rng-egd") ||
2880 g_str_has_prefix(type, "pr-manager-")) {
2881 return false;
2882 }
2883
2884 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2885 if (g_str_equal(type, "cryptodev-vhost-user")) {
2886 return false;
2887 }
2888 #endif
2889
2890 /*
2891 * return false for concrete netfilters since
2892 * they depend on netdevs already existing
2893 */
2894 if (g_str_equal(type, "filter-buffer") ||
2895 g_str_equal(type, "filter-dump") ||
2896 g_str_equal(type, "filter-mirror") ||
2897 g_str_equal(type, "filter-redirector") ||
2898 g_str_equal(type, "colo-compare") ||
2899 g_str_equal(type, "filter-rewriter") ||
2900 g_str_equal(type, "filter-replay")) {
2901 return false;
2902 }
2903
2904 /* Memory allocation by backends needs to be done
2905 * after configure_accelerator() (due to the tcg_enabled()
2906 * checks at memory_region_init_*()).
2907 *
2908 * Also, allocation of large amounts of memory may delay
2909 * chardev initialization for too long, and trigger timeouts
2910 * on software that waits for a monitor socket to be created
2911 * (e.g. libvirt).
2912 */
2913 if (g_str_has_prefix(type, "memory-backend-")) {
2914 return false;
2915 }
2916
2917 return true;
2918 }
2919
2920
2921 /*
2922 * The remainder of object creation happens after the
2923 * creation of chardev, fsdev, net clients and device data types.
2924 */
2925 static bool object_create_delayed(const char *type)
2926 {
2927 return !object_create_initial(type);
2928 }
2929
2930
2931 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2932 MachineClass *mc)
2933 {
2934 uint64_t sz;
2935 const char *mem_str;
2936 const char *maxmem_str, *slots_str;
2937 const ram_addr_t default_ram_size = mc->default_ram_size;
2938 QemuOpts *opts = qemu_find_opts_singleton("memory");
2939 Location loc;
2940
2941 loc_push_none(&loc);
2942 qemu_opts_loc_restore(opts);
2943
2944 sz = 0;
2945 mem_str = qemu_opt_get(opts, "size");
2946 if (mem_str) {
2947 if (!*mem_str) {
2948 error_report("missing 'size' option value");
2949 exit(EXIT_FAILURE);
2950 }
2951
2952 sz = qemu_opt_get_size(opts, "size", ram_size);
2953
2954 /* Fix up legacy suffix-less format */
2955 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2956 uint64_t overflow_check = sz;
2957
2958 sz <<= 20;
2959 if ((sz >> 20) != overflow_check) {
2960 error_report("too large 'size' option value");
2961 exit(EXIT_FAILURE);
2962 }
2963 }
2964 }
2965
2966 /* backward compatibility behaviour for case "-m 0" */
2967 if (sz == 0) {
2968 sz = default_ram_size;
2969 }
2970
2971 sz = QEMU_ALIGN_UP(sz, 8192);
2972 ram_size = sz;
2973 if (ram_size != sz) {
2974 error_report("ram size too large");
2975 exit(EXIT_FAILURE);
2976 }
2977
2978 /* store value for the future use */
2979 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2980 *maxram_size = ram_size;
2981
2982 maxmem_str = qemu_opt_get(opts, "maxmem");
2983 slots_str = qemu_opt_get(opts, "slots");
2984 if (maxmem_str && slots_str) {
2985 uint64_t slots;
2986
2987 sz = qemu_opt_get_size(opts, "maxmem", 0);
2988 slots = qemu_opt_get_number(opts, "slots", 0);
2989 if (sz < ram_size) {
2990 error_report("invalid value of -m option maxmem: "
2991 "maximum memory size (0x%" PRIx64 ") must be at least "
2992 "the initial memory size (0x" RAM_ADDR_FMT ")",
2993 sz, ram_size);
2994 exit(EXIT_FAILURE);
2995 } else if (sz > ram_size) {
2996 if (!slots) {
2997 error_report("invalid value of -m option: maxmem was "
2998 "specified, but no hotplug slots were specified");
2999 exit(EXIT_FAILURE);
3000 }
3001 } else if (slots) {
3002 error_report("invalid value of -m option maxmem: "
3003 "memory slots were specified but maximum memory size "
3004 "(0x%" PRIx64 ") is equal to the initial memory size "
3005 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
3006 exit(EXIT_FAILURE);
3007 }
3008
3009 *maxram_size = sz;
3010 *ram_slots = slots;
3011 } else if ((!maxmem_str && slots_str) ||
3012 (maxmem_str && !slots_str)) {
3013 error_report("invalid -m option value: missing "
3014 "'%s' option", slots_str ? "maxmem" : "slots");
3015 exit(EXIT_FAILURE);
3016 }
3017
3018 loc_pop(&loc);
3019 }
3020
3021 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
3022 {
3023 GlobalProperty *g;
3024
3025 g = g_malloc0(sizeof(*g));
3026 g->driver = qemu_opt_get(opts, "driver");
3027 g->property = qemu_opt_get(opts, "property");
3028 g->value = qemu_opt_get(opts, "value");
3029 g->user_provided = true;
3030 g->errp = &error_fatal;
3031 qdev_prop_register_global(g);
3032 return 0;
3033 }
3034
3035 static int qemu_read_default_config_file(void)
3036 {
3037 int ret;
3038
3039 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
3040 if (ret < 0 && ret != -ENOENT) {
3041 return ret;
3042 }
3043
3044 return 0;
3045 }
3046
3047 static void user_register_global_props(void)
3048 {
3049 qemu_opts_foreach(qemu_find_opts("global"),
3050 global_init_func, NULL, NULL);
3051 }
3052
3053 /*
3054 * Note: we should see that these properties are actually having a
3055 * priority: accel < machine < user. This means e.g. when user
3056 * specifies something in "-global", it'll always be used with highest
3057 * priority than either machine/accelerator compat properties.
3058 */
3059 static void register_global_properties(MachineState *ms)
3060 {
3061 accel_register_compat_props(ms->accelerator);
3062 machine_register_compat_props(ms);
3063 user_register_global_props();
3064 }
3065
3066 int main(int argc, char **argv)
3067 {
3068 int i;
3069 int snapshot, linux_boot;
3070 const char *initrd_filename;
3071 const char *kernel_filename, *kernel_cmdline;
3072 const char *boot_order = NULL;
3073 const char *boot_once = NULL;
3074 DisplayState *ds;
3075 QemuOpts *opts, *machine_opts;
3076 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
3077 QemuOptsList *olist;
3078 int optind;
3079 const char *optarg;
3080 const char *loadvm = NULL;
3081 MachineClass *machine_class;
3082 const char *cpu_model;
3083 const char *vga_model = NULL;
3084 const char *qtest_chrdev = NULL;
3085 const char *qtest_log = NULL;
3086 const char *pid_file = NULL;
3087 const char *incoming = NULL;
3088 bool userconfig = true;
3089 bool nographic = false;
3090 int display_remote = 0;
3091 const char *log_mask = NULL;
3092 const char *log_file = NULL;
3093 char *trace_file = NULL;
3094 ram_addr_t maxram_size;
3095 uint64_t ram_slots = 0;
3096 FILE *vmstate_dump_file = NULL;
3097 Error *main_loop_err = NULL;
3098 Error *err = NULL;
3099 bool list_data_dirs = false;
3100 char *dir, **dirs;
3101 typedef struct BlockdevOptions_queue {
3102 BlockdevOptions *bdo;
3103 Location loc;
3104 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3105 } BlockdevOptions_queue;
3106 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3107 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3108
3109 module_call_init(MODULE_INIT_TRACE);
3110
3111 qemu_init_cpu_list();
3112 qemu_init_cpu_loop();
3113
3114 qemu_mutex_lock_iothread();
3115
3116 atexit(qemu_run_exit_notifiers);
3117 error_set_progname(argv[0]);
3118 qemu_init_exec_dir(argv[0]);
3119
3120 module_call_init(MODULE_INIT_QOM);
3121
3122 qemu_add_opts(&qemu_drive_opts);
3123 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3124 qemu_add_drive_opts(&qemu_common_drive_opts);
3125 qemu_add_drive_opts(&qemu_drive_opts);
3126 qemu_add_drive_opts(&bdrv_runtime_opts);
3127 qemu_add_opts(&qemu_chardev_opts);
3128 qemu_add_opts(&qemu_device_opts);
3129 qemu_add_opts(&qemu_netdev_opts);
3130 qemu_add_opts(&qemu_nic_opts);
3131 qemu_add_opts(&qemu_net_opts);
3132 qemu_add_opts(&qemu_rtc_opts);
3133 qemu_add_opts(&qemu_global_opts);
3134 qemu_add_opts(&qemu_mon_opts);
3135 qemu_add_opts(&qemu_trace_opts);
3136 qemu_add_opts(&qemu_option_rom_opts);
3137 qemu_add_opts(&qemu_machine_opts);
3138 qemu_add_opts(&qemu_accel_opts);
3139 qemu_add_opts(&qemu_mem_opts);
3140 qemu_add_opts(&qemu_smp_opts);
3141 qemu_add_opts(&qemu_boot_opts);
3142 qemu_add_opts(&qemu_sandbox_opts);
3143 qemu_add_opts(&qemu_add_fd_opts);
3144 qemu_add_opts(&qemu_object_opts);
3145 qemu_add_opts(&qemu_tpmdev_opts);
3146 qemu_add_opts(&qemu_realtime_opts);
3147 qemu_add_opts(&qemu_msg_opts);
3148 qemu_add_opts(&qemu_name_opts);
3149 qemu_add_opts(&qemu_numa_opts);
3150 qemu_add_opts(&qemu_icount_opts);
3151 qemu_add_opts(&qemu_semihosting_config_opts);
3152 qemu_add_opts(&qemu_fw_cfg_opts);
3153 module_call_init(MODULE_INIT_OPTS);
3154
3155 runstate_init();
3156 postcopy_infrastructure_init();
3157
3158 if (qcrypto_init(&err) < 0) {
3159 error_reportf_err(err, "cannot initialize crypto: ");
3160 exit(1);
3161 }
3162 rtc_clock = QEMU_CLOCK_HOST;
3163
3164 QLIST_INIT (&vm_change_state_head);
3165 os_setup_early_signal_handling();
3166
3167 cpu_model = NULL;
3168 snapshot = 0;
3169
3170 nb_nics = 0;
3171
3172 bdrv_init_with_whitelist();
3173
3174 autostart = 1;
3175
3176 /* first pass of option parsing */
3177 optind = 1;
3178 while (optind < argc) {
3179 if (argv[optind][0] != '-') {
3180 /* disk image */
3181 optind++;
3182 } else {
3183 const QEMUOption *popt;
3184
3185 popt = lookup_opt(argc, argv, &optarg, &optind);
3186 switch (popt->index) {
3187 case QEMU_OPTION_nodefconfig:
3188 case QEMU_OPTION_nouserconfig:
3189 userconfig = false;
3190 break;
3191 }
3192 }
3193 }
3194
3195 if (userconfig) {
3196 if (qemu_read_default_config_file() < 0) {
3197 exit(1);
3198 }
3199 }
3200
3201 /* second pass of option parsing */
3202 optind = 1;
3203 for(;;) {
3204 if (optind >= argc)
3205 break;
3206 if (argv[optind][0] != '-') {
3207 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3208 } else {
3209 const QEMUOption *popt;
3210
3211 popt = lookup_opt(argc, argv, &optarg, &optind);
3212 if (!(popt->arch_mask & arch_type)) {
3213 error_report("Option not supported for this target");
3214 exit(1);
3215 }
3216 switch(popt->index) {
3217 case QEMU_OPTION_no_kvm_irqchip: {
3218 olist = qemu_find_opts("machine");
3219 qemu_opts_parse_noisily(olist, "kernel_irqchip=off", false);
3220 break;
3221 }
3222 case QEMU_OPTION_cpu:
3223 /* hw initialization will check this */
3224 cpu_model = optarg;
3225 break;
3226 case QEMU_OPTION_hda:
3227 case QEMU_OPTION_hdb:
3228 case QEMU_OPTION_hdc:
3229 case QEMU_OPTION_hdd:
3230 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3231 HD_OPTS);
3232 break;
3233 case QEMU_OPTION_blockdev:
3234 {
3235 Visitor *v;
3236 BlockdevOptions_queue *bdo;
3237
3238 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3239 if (!v) {
3240 error_report_err(err);
3241 exit(1);
3242 }
3243
3244 bdo = g_new(BlockdevOptions_queue, 1);
3245 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3246 &error_fatal);
3247 visit_free(v);
3248 loc_save(&bdo->loc);
3249 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3250 break;
3251 }
3252 case QEMU_OPTION_drive:
3253 if (drive_def(optarg) == NULL) {
3254 exit(1);
3255 }
3256 break;
3257 case QEMU_OPTION_set:
3258 if (qemu_set_option(optarg) != 0)
3259 exit(1);
3260 break;
3261 case QEMU_OPTION_global:
3262 if (qemu_global_option(optarg) != 0)
3263 exit(1);
3264 break;
3265 case QEMU_OPTION_mtdblock:
3266 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3267 break;
3268 case QEMU_OPTION_sd:
3269 drive_add(IF_SD, -1, optarg, SD_OPTS);
3270 break;
3271 case QEMU_OPTION_pflash:
3272 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3273 break;
3274 case QEMU_OPTION_snapshot:
3275 snapshot = 1;
3276 break;
3277 case QEMU_OPTION_numa:
3278 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3279 optarg, true);
3280 if (!opts) {
3281 exit(1);
3282 }
3283 break;
3284 case QEMU_OPTION_display:
3285 parse_display(optarg);
3286 break;
3287 case QEMU_OPTION_nographic:
3288 olist = qemu_find_opts("machine");
3289 qemu_opts_parse_noisily(olist, "graphics=off", false);
3290 nographic = true;
3291 dpy.type = DISPLAY_TYPE_NONE;
3292 break;
3293 case QEMU_OPTION_curses:
3294 #ifdef CONFIG_CURSES
3295 dpy.type = DISPLAY_TYPE_CURSES;
3296 #else
3297 error_report("curses support is disabled");
3298 exit(1);
3299 #endif
3300 break;
3301 case QEMU_OPTION_portrait:
3302 graphic_rotate = 90;
3303 break;
3304 case QEMU_OPTION_rotate:
3305 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3306 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3307 graphic_rotate != 180 && graphic_rotate != 270) {
3308 error_report("only 90, 180, 270 deg rotation is available");
3309 exit(1);
3310 }
3311 break;
3312 case QEMU_OPTION_kernel:
3313 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3314 &error_abort);
3315 break;
3316 case QEMU_OPTION_initrd:
3317 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3318 &error_abort);
3319 break;
3320 case QEMU_OPTION_append:
3321 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3322 &error_abort);
3323 break;
3324 case QEMU_OPTION_dtb:
3325 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3326 &error_abort);
3327 break;
3328 case QEMU_OPTION_cdrom:
3329 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3330 break;
3331 case QEMU_OPTION_boot:
3332 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3333 optarg, true);
3334 if (!opts) {
3335 exit(1);
3336 }
3337 break;
3338 case QEMU_OPTION_fda:
3339 case QEMU_OPTION_fdb:
3340 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3341 optarg, FD_OPTS);
3342 break;
3343 case QEMU_OPTION_no_fd_bootchk:
3344 fd_bootchk = 0;
3345 break;
3346 case QEMU_OPTION_netdev:
3347 default_net = 0;
3348 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3349 exit(1);
3350 }
3351 break;
3352 case QEMU_OPTION_nic:
3353 default_net = 0;
3354 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3355 exit(1);
3356 }
3357 break;
3358 case QEMU_OPTION_net:
3359 default_net = 0;
3360 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3361 exit(1);
3362 }
3363 break;
3364 #ifdef CONFIG_LIBISCSI
3365 case QEMU_OPTION_iscsi:
3366 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3367 optarg, false);
3368 if (!opts) {
3369 exit(1);
3370 }
3371 break;
3372 #endif
3373 #ifdef CONFIG_SLIRP
3374 case QEMU_OPTION_tftp:
3375 error_report("The -tftp option is deprecated. "
3376 "Please use '-netdev user,tftp=...' instead.");
3377 legacy_tftp_prefix = optarg;
3378 break;
3379 case QEMU_OPTION_bootp:
3380 error_report("The -bootp option is deprecated. "
3381 "Please use '-netdev user,bootfile=...' instead.");
3382 legacy_bootp_filename = optarg;
3383 break;
3384 case QEMU_OPTION_redir:
3385 error_report("The -redir option is deprecated. "
3386 "Please use '-netdev user,hostfwd=...' instead.");
3387 if (net_slirp_redir(optarg) < 0)
3388 exit(1);
3389 break;
3390 #endif
3391 case QEMU_OPTION_bt:
3392 add_device_config(DEV_BT, optarg);
3393 break;
3394 case QEMU_OPTION_audio_help:
3395 AUD_help ();
3396 exit (0);
3397 break;
3398 case QEMU_OPTION_soundhw:
3399 select_soundhw (optarg);
3400 break;
3401 case QEMU_OPTION_h:
3402 help(0);
3403 break;
3404 case QEMU_OPTION_version:
3405 version();
3406 exit(0);
3407 break;
3408 case QEMU_OPTION_m:
3409 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3410 optarg, true);
3411 if (!opts) {
3412 exit(EXIT_FAILURE);
3413 }
3414 break;
3415 #ifdef CONFIG_TPM
3416 case QEMU_OPTION_tpmdev:
3417 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3418 exit(1);
3419 }
3420 break;
3421 #endif
3422 case QEMU_OPTION_mempath:
3423 mem_path = optarg;
3424 break;
3425 case QEMU_OPTION_mem_prealloc:
3426 mem_prealloc = 1;
3427 break;
3428 case QEMU_OPTION_d:
3429 log_mask = optarg;
3430 break;
3431 case QEMU_OPTION_D:
3432 log_file = optarg;
3433 break;
3434 case QEMU_OPTION_DFILTER:
3435 qemu_set_dfilter_ranges(optarg, &error_fatal);
3436 break;
3437 case QEMU_OPTION_s:
3438 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3439 break;
3440 case QEMU_OPTION_gdb:
3441 add_device_config(DEV_GDB, optarg);
3442 break;
3443 case QEMU_OPTION_L:
3444 if (is_help_option(optarg)) {
3445 list_data_dirs = true;
3446 } else {
3447 qemu_add_data_dir(optarg);
3448 }
3449 break;
3450 case QEMU_OPTION_bios:
3451 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3452 &error_abort);
3453 break;
3454 case QEMU_OPTION_singlestep:
3455 singlestep = 1;
3456 break;
3457 case QEMU_OPTION_S:
3458 autostart = 0;
3459 break;
3460 case QEMU_OPTION_k:
3461 keyboard_layout = optarg;
3462 break;
3463 case QEMU_OPTION_localtime:
3464 rtc_utc = 0;
3465 warn_report("This option is deprecated, "
3466 "use '-rtc base=localtime' instead.");
3467 break;
3468 case QEMU_OPTION_vga:
3469 vga_model = optarg;
3470 default_vga = 0;
3471 break;
3472 case QEMU_OPTION_g:
3473 {
3474 const char *p;
3475 int w, h, depth;
3476 p = optarg;
3477 w = strtol(p, (char **)&p, 10);
3478 if (w <= 0) {
3479 graphic_error:
3480 error_report("invalid resolution or depth");
3481 exit(1);
3482 }
3483 if (*p != 'x')
3484 goto graphic_error;
3485 p++;
3486 h = strtol(p, (char **)&p, 10);
3487 if (h <= 0)
3488 goto graphic_error;
3489 if (*p == 'x') {
3490 p++;
3491 depth = strtol(p, (char **)&p, 10);
3492 if (depth != 8 && depth != 15 && depth != 16 &&
3493 depth != 24 && depth != 32)
3494 goto graphic_error;
3495 } else if (*p == '\0') {
3496 depth = graphic_depth;
3497 } else {
3498 goto graphic_error;
3499 }
3500
3501 graphic_width = w;
3502 graphic_height = h;
3503 graphic_depth = depth;
3504 }
3505 break;
3506 case QEMU_OPTION_echr:
3507 {
3508 char *r;
3509 term_escape_char = strtol(optarg, &r, 0);
3510 if (r == optarg)
3511 printf("Bad argument to echr\n");
3512 break;
3513 }
3514 case QEMU_OPTION_monitor:
3515 default_monitor = 0;
3516 if (strncmp(optarg, "none", 4)) {
3517 monitor_parse(optarg, "readline", false);
3518 }
3519 break;
3520 case QEMU_OPTION_qmp:
3521 monitor_parse(optarg, "control", false);
3522 default_monitor = 0;
3523 break;
3524 case QEMU_OPTION_qmp_pretty:
3525 monitor_parse(optarg, "control", true);
3526 default_monitor = 0;
3527 break;
3528 case QEMU_OPTION_mon:
3529 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3530 true);
3531 if (!opts) {
3532 exit(1);
3533 }
3534 default_monitor = 0;
3535 break;
3536 case QEMU_OPTION_chardev:
3537 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3538 optarg, true);
3539 if (!opts) {
3540 exit(1);
3541 }
3542 break;
3543 case QEMU_OPTION_fsdev:
3544 olist = qemu_find_opts("fsdev");
3545 if (!olist) {
3546 error_report("fsdev support is disabled");
3547 exit(1);
3548 }
3549 opts = qemu_opts_parse_noisily(olist, optarg, true);
3550 if (!opts) {
3551 exit(1);
3552 }
3553 break;
3554 case QEMU_OPTION_virtfs: {
3555 QemuOpts *fsdev;
3556 QemuOpts *device;
3557 const char *writeout, *sock_fd, *socket, *path, *security_model;
3558
3559 olist = qemu_find_opts("virtfs");
3560 if (!olist) {
3561 error_report("virtfs support is disabled");
3562 exit(1);
3563 }
3564 opts = qemu_opts_parse_noisily(olist, optarg, true);
3565 if (!opts) {
3566 exit(1);
3567 }
3568
3569 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3570 qemu_opt_get(opts, "mount_tag") == NULL) {
3571 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3572 exit(1);
3573 }
3574 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3575 qemu_opts_id(opts) ?:
3576 qemu_opt_get(opts, "mount_tag"),
3577 1, NULL);
3578 if (!fsdev) {
3579 error_report("duplicate or invalid fsdev id: %s",
3580 qemu_opt_get(opts, "mount_tag"));
3581 exit(1);
3582 }
3583
3584 writeout = qemu_opt_get(opts, "writeout");
3585 if (writeout) {
3586 #ifdef CONFIG_SYNC_FILE_RANGE
3587 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3588 #else
3589 error_report("writeout=immediate not supported "
3590 "on this platform");
3591 exit(1);
3592 #endif
3593 }
3594 qemu_opt_set(fsdev, "fsdriver",
3595 qemu_opt_get(opts, "fsdriver"), &error_abort);
3596 path = qemu_opt_get(opts, "path");
3597 if (path) {
3598 qemu_opt_set(fsdev, "path", path, &error_abort);
3599 }
3600 security_model = qemu_opt_get(opts, "security_model");
3601 if (security_model) {
3602 qemu_opt_set(fsdev, "security_model", security_model,
3603 &error_abort);
3604 }
3605 socket = qemu_opt_get(opts, "socket");
3606 if (socket) {
3607 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3608 }
3609 sock_fd = qemu_opt_get(opts, "sock_fd");
3610 if (sock_fd) {
3611 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3612 }
3613
3614 qemu_opt_set_bool(fsdev, "readonly",
3615 qemu_opt_get_bool(opts, "readonly", 0),
3616 &error_abort);
3617 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3618 &error_abort);
3619 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3620 qemu_opt_set(device, "fsdev",
3621 qemu_opts_id(fsdev), &error_abort);
3622 qemu_opt_set(device, "mount_tag",
3623 qemu_opt_get(opts, "mount_tag"), &error_abort);
3624 break;
3625 }
3626 case QEMU_OPTION_virtfs_synth: {
3627 QemuOpts *fsdev;
3628 QemuOpts *device;
3629
3630 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3631 1, NULL);
3632 if (!fsdev) {
3633 error_report("duplicate option: %s", "virtfs_synth");
3634 exit(1);
3635 }
3636 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3637
3638 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3639 &error_abort);
3640 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3641 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3642 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3643 break;
3644 }
3645 case QEMU_OPTION_serial:
3646 add_device_config(DEV_SERIAL, optarg);
3647 default_serial = 0;
3648 if (strncmp(optarg, "mon:", 4) == 0) {
3649 default_monitor = 0;
3650 }
3651 break;
3652 case QEMU_OPTION_watchdog:
3653 if (watchdog) {
3654 error_report("only one watchdog option may be given");
3655 return 1;
3656 }
3657 watchdog = optarg;
3658 break;
3659 case QEMU_OPTION_watchdog_action:
3660 if (select_watchdog_action(optarg) == -1) {
3661 error_report("unknown -watchdog-action parameter");
3662 exit(1);
3663 }
3664 break;
3665 case QEMU_OPTION_virtiocon:
3666 add_device_config(DEV_VIRTCON, optarg);
3667 default_virtcon = 0;
3668 if (strncmp(optarg, "mon:", 4) == 0) {
3669 default_monitor = 0;
3670 }
3671 break;
3672 case QEMU_OPTION_parallel:
3673 add_device_config(DEV_PARALLEL, optarg);
3674 default_parallel = 0;
3675 if (strncmp(optarg, "mon:", 4) == 0) {
3676 default_monitor = 0;
3677 }
3678 break;
3679 case QEMU_OPTION_debugcon:
3680 add_device_config(DEV_DEBUGCON, optarg);
3681 break;
3682 case QEMU_OPTION_loadvm:
3683 loadvm = optarg;
3684 break;
3685 case QEMU_OPTION_full_screen:
3686 dpy.has_full_screen = true;
3687 dpy.full_screen = true;
3688 break;
3689 case QEMU_OPTION_no_frame:
3690 g_printerr("The -no-frame switch is deprecated, and will be\n"
3691 "removed in a future release.\n");
3692 no_frame = 1;
3693 break;
3694 case QEMU_OPTION_alt_grab:
3695 alt_grab = 1;
3696 break;
3697 case QEMU_OPTION_ctrl_grab:
3698 ctrl_grab = 1;
3699 break;
3700 case QEMU_OPTION_no_quit:
3701 dpy.has_window_close = true;
3702 dpy.window_close = false;
3703 break;
3704 case QEMU_OPTION_sdl:
3705 #ifdef CONFIG_SDL
3706 dpy.type = DISPLAY_TYPE_SDL;
3707 break;
3708 #else
3709 error_report("SDL support is disabled");
3710 exit(1);
3711 #endif
3712 case QEMU_OPTION_pidfile:
3713 pid_file = optarg;
3714 break;
3715 case QEMU_OPTION_win2k_hack:
3716 win2k_install_hack = 1;
3717 break;
3718 case QEMU_OPTION_rtc_td_hack: {
3719 static GlobalProperty slew_lost_ticks = {
3720 .driver = "mc146818rtc",
3721 .property = "lost_tick_policy",
3722 .value = "slew",
3723 };
3724
3725 qdev_prop_register_global(&slew_lost_ticks);
3726 warn_report("This option is deprecated, "
3727 "use '-rtc driftfix=slew' instead.");
3728 break;
3729 }
3730 case QEMU_OPTION_acpitable:
3731 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3732 optarg, true);
3733 if (!opts) {
3734 exit(1);
3735 }
3736 acpi_table_add(opts, &error_fatal);
3737 break;
3738 case QEMU_OPTION_smbios:
3739 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3740 optarg, false);
3741 if (!opts) {
3742 exit(1);
3743 }
3744 smbios_entry_add(opts, &error_fatal);
3745 break;
3746 case QEMU_OPTION_fwcfg:
3747 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3748 optarg, true);
3749 if (opts == NULL) {
3750 exit(1);
3751 }
3752 break;
3753 case QEMU_OPTION_enable_kvm:
3754 olist = qemu_find_opts("machine");
3755 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3756 break;
3757 case QEMU_OPTION_enable_hax:
3758 olist = qemu_find_opts("machine");
3759 qemu_opts_parse_noisily(olist, "accel=hax", false);
3760 break;
3761 case QEMU_OPTION_M:
3762 case QEMU_OPTION_machine:
3763 olist = qemu_find_opts("machine");
3764 opts = qemu_opts_parse_noisily(olist, optarg, true);
3765 if (!opts) {
3766 exit(1);
3767 }
3768 break;
3769 case QEMU_OPTION_no_kvm:
3770 olist = qemu_find_opts("machine");
3771 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3772 break;
3773 case QEMU_OPTION_no_kvm_pit_reinjection: {
3774 static GlobalProperty kvm_pit_lost_tick_policy = {
3775 .driver = "kvm-pit",
3776 .property = "lost_tick_policy",
3777 .value = "discard",
3778 };
3779
3780 warn_report("deprecated, replaced by "
3781 "-global kvm-pit.lost_tick_policy=discard");
3782 qdev_prop_register_global(&kvm_pit_lost_tick_policy);
3783 break;
3784 }
3785 case QEMU_OPTION_accel:
3786 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3787 optarg, true);
3788 optarg = qemu_opt_get(accel_opts, "accel");
3789 if (!optarg || is_help_option(optarg)) {
3790 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3791 exit(0);
3792 }
3793 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3794 false, &error_abort);
3795 qemu_opt_set(opts, "accel", optarg, &error_abort);
3796 break;
3797 case QEMU_OPTION_usb:
3798 olist = qemu_find_opts("machine");
3799 qemu_opts_parse_noisily(olist, "usb=on", false);
3800 break;
3801 case QEMU_OPTION_usbdevice:
3802 error_report("'-usbdevice' is deprecated, please use "
3803 "'-device usb-...' instead");
3804 olist = qemu_find_opts("machine");
3805 qemu_opts_parse_noisily(olist, "usb=on", false);
3806 add_device_config(DEV_USB, optarg);
3807 break;
3808 case QEMU_OPTION_device:
3809 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3810 optarg, true)) {
3811 exit(1);
3812 }
3813 break;
3814 case QEMU_OPTION_smp:
3815 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3816 optarg, true)) {
3817 exit(1);
3818 }
3819 break;
3820 case QEMU_OPTION_vnc:
3821 vnc_parse(optarg, &error_fatal);
3822 break;
3823 case QEMU_OPTION_no_acpi:
3824 acpi_enabled = 0;
3825 break;
3826 case QEMU_OPTION_no_hpet:
3827 no_hpet = 1;
3828 break;
3829 case QEMU_OPTION_balloon:
3830 if (balloon_parse(optarg) < 0) {
3831 error_report("unknown -balloon argument %s", optarg);
3832 exit(1);
3833 }
3834 break;
3835 case QEMU_OPTION_no_reboot:
3836 no_reboot = 1;
3837 break;
3838 case QEMU_OPTION_no_shutdown:
3839 no_shutdown = 1;
3840 break;
3841 case QEMU_OPTION_show_cursor:
3842 cursor_hide = 0;
3843 break;
3844 case QEMU_OPTION_uuid:
3845 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3846 error_report("failed to parse UUID string: wrong format");
3847 exit(1);
3848 }
3849 qemu_uuid_set = true;
3850 break;
3851 case QEMU_OPTION_option_rom:
3852 if (nb_option_roms >= MAX_OPTION_ROMS) {
3853 error_report("too many option ROMs");
3854 exit(1);
3855 }
3856 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3857 optarg, true);
3858 if (!opts) {
3859 exit(1);
3860 }
3861 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3862 option_rom[nb_option_roms].bootindex =
3863 qemu_opt_get_number(opts, "bootindex", -1);
3864 if (!option_rom[nb_option_roms].name) {
3865 error_report("Option ROM file is not specified");
3866 exit(1);
3867 }
3868 nb_option_roms++;
3869 break;
3870 case QEMU_OPTION_semihosting:
3871 semihosting.enabled = true;
3872 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3873 break;
3874 case QEMU_OPTION_semihosting_config:
3875 semihosting.enabled = true;
3876 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3877 optarg, false);
3878 if (opts != NULL) {
3879 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3880 true);
3881 const char *target = qemu_opt_get(opts, "target");
3882 if (target != NULL) {
3883 if (strcmp("native", target) == 0) {
3884 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3885 } else if (strcmp("gdb", target) == 0) {
3886 semihosting.target = SEMIHOSTING_TARGET_GDB;
3887 } else if (strcmp("auto", target) == 0) {
3888 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3889 } else {
3890 error_report("unsupported semihosting-config %s",
3891 optarg);
3892 exit(1);
3893 }
3894 } else {
3895 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3896 }
3897 /* Set semihosting argument count and vector */
3898 qemu_opt_foreach(opts, add_semihosting_arg,
3899 &semihosting, NULL);
3900 } else {
3901 error_report("unsupported semihosting-config %s", optarg);
3902 exit(1);
3903 }
3904 break;
3905 case QEMU_OPTION_name:
3906 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3907 optarg, true);
3908 if (!opts) {
3909 exit(1);
3910 }
3911 break;
3912 case QEMU_OPTION_prom_env:
3913 if (nb_prom_envs >= MAX_PROM_ENVS) {
3914 error_report("too many prom variables");
3915 exit(1);
3916 }
3917 prom_envs[nb_prom_envs] = optarg;
3918 nb_prom_envs++;
3919 break;
3920 case QEMU_OPTION_old_param:
3921 old_param = 1;
3922 break;
3923 case QEMU_OPTION_clock:
3924 /* Clock options no longer exist. Keep this option for
3925 * backward compatibility.
3926 */
3927 break;
3928 case QEMU_OPTION_startdate:
3929 warn_report("This option is deprecated, use '-rtc base=' instead.");
3930 configure_rtc_date_offset(optarg, 1);
3931 break;
3932 case QEMU_OPTION_rtc:
3933 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3934 false);
3935 if (!opts) {
3936 exit(1);
3937 }
3938 configure_rtc(opts);
3939 break;
3940 case QEMU_OPTION_tb_size:
3941 #ifndef CONFIG_TCG
3942 error_report("TCG is disabled");
3943 exit(1);
3944 #endif
3945 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3946 error_report("Invalid argument to -tb-size");
3947 exit(1);
3948 }
3949 break;
3950 case QEMU_OPTION_icount:
3951 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3952 optarg, true);
3953 if (!icount_opts) {
3954 exit(1);
3955 }
3956 break;
3957 case QEMU_OPTION_incoming:
3958 if (!incoming) {
3959 runstate_set(RUN_STATE_INMIGRATE);
3960 }
3961 incoming = optarg;
3962 break;
3963 case QEMU_OPTION_only_migratable:
3964 /*
3965 * TODO: we can remove this option one day, and we
3966 * should all use:
3967 *
3968 * "-global migration.only-migratable=true"
3969 */
3970 qemu_global_option("migration.only-migratable=true");
3971 break;
3972 case QEMU_OPTION_nodefaults:
3973 has_defaults = 0;
3974 break;
3975 case QEMU_OPTION_xen_domid:
3976 if (!(xen_available())) {
3977 error_report("Option not supported for this target");
3978 exit(1);
3979 }
3980 xen_domid = atoi(optarg);
3981 break;
3982 case QEMU_OPTION_xen_create:
3983 if (!(xen_available())) {
3984 error_report("Option not supported for this target");
3985 exit(1);
3986 }
3987 xen_mode = XEN_CREATE;
3988 break;
3989 case QEMU_OPTION_xen_attach:
3990 if (!(xen_available())) {
3991 error_report("Option not supported for this target");
3992 exit(1);
3993 }
3994 xen_mode = XEN_ATTACH;
3995 break;
3996 case QEMU_OPTION_xen_domid_restrict:
3997 if (!(xen_available())) {
3998 error_report("Option not supported for this target");
3999 exit(1);
4000 }
4001 xen_domid_restrict = true;
4002 break;
4003 case QEMU_OPTION_trace:
4004 g_free(trace_file);
4005 trace_file = trace_opt_parse(optarg);
4006 break;
4007 case QEMU_OPTION_trace_unassigned:
4008 trace_unassigned = true;
4009 break;
4010 case QEMU_OPTION_readconfig:
4011 {
4012 int ret = qemu_read_config_file(optarg);
4013 if (ret < 0) {
4014 error_report("read config %s: %s", optarg,
4015 strerror(-ret));
4016 exit(1);
4017 }
4018 break;
4019 }
4020 case QEMU_OPTION_spice:
4021 olist = qemu_find_opts("spice");
4022 if (!olist) {
4023 error_report("spice support is disabled");
4024 exit(1);
4025 }
4026 opts = qemu_opts_parse_noisily(olist, optarg, false);
4027 if (!opts) {
4028 exit(1);
4029 }
4030 display_remote++;
4031 break;
4032 case QEMU_OPTION_writeconfig:
4033 {
4034 FILE *fp;
4035 if (strcmp(optarg, "-") == 0) {
4036 fp = stdout;
4037 } else {
4038 fp = fopen(optarg, "w");
4039 if (fp == NULL) {
4040 error_report("open %s: %s", optarg,
4041 strerror(errno));
4042 exit(1);
4043 }
4044 }
4045 qemu_config_write(fp);
4046 if (fp != stdout) {
4047 fclose(fp);
4048 }
4049 break;
4050 }
4051 case QEMU_OPTION_qtest:
4052 qtest_chrdev = optarg;
4053 break;
4054 case QEMU_OPTION_qtest_log:
4055 qtest_log = optarg;
4056 break;
4057 case QEMU_OPTION_sandbox:
4058 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
4059 optarg, true);
4060 if (!opts) {
4061 exit(1);
4062 }
4063 break;
4064 case QEMU_OPTION_add_fd:
4065 #ifndef _WIN32
4066 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
4067 optarg, false);
4068 if (!opts) {
4069 exit(1);
4070 }
4071 #else
4072 error_report("File descriptor passing is disabled on this "
4073 "platform");
4074 exit(1);
4075 #endif
4076 break;
4077 case QEMU_OPTION_object:
4078 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
4079 optarg, true);
4080 if (!opts) {
4081 exit(1);
4082 }
4083 break;
4084 case QEMU_OPTION_realtime:
4085 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
4086 optarg, false);
4087 if (!opts) {
4088 exit(1);
4089 }
4090 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
4091 break;
4092 case QEMU_OPTION_msg:
4093 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
4094 false);
4095 if (!opts) {
4096 exit(1);
4097 }
4098 configure_msg(opts);
4099 break;
4100 case QEMU_OPTION_dump_vmstate:
4101 if (vmstate_dump_file) {
4102 error_report("only one '-dump-vmstate' "
4103 "option may be given");
4104 exit(1);
4105 }
4106 vmstate_dump_file = fopen(optarg, "w");
4107 if (vmstate_dump_file == NULL) {
4108 error_report("open %s: %s", optarg, strerror(errno));
4109 exit(1);
4110 }
4111 break;
4112 default:
4113 os_parse_cmd_args(popt->index, optarg);
4114 }
4115 }
4116 }
4117 /*
4118 * Clear error location left behind by the loop.
4119 * Best done right after the loop. Do not insert code here!
4120 */
4121 loc_set_none();
4122
4123 replay_configure(icount_opts);
4124
4125 machine_class = select_machine();
4126
4127 set_memory_options(&ram_slots, &maxram_size, machine_class);
4128
4129 os_daemonize();
4130 rcu_disable_atfork();
4131
4132 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4133 error_report("could not acquire pid file: %s", strerror(errno));
4134 exit(1);
4135 }
4136
4137 if (qemu_init_main_loop(&main_loop_err)) {
4138 error_report_err(main_loop_err);
4139 exit(1);
4140 }
4141
4142 if (qemu_opts_foreach(qemu_find_opts("sandbox"),
4143 parse_sandbox, NULL, NULL)) {
4144 exit(1);
4145 }
4146
4147 if (qemu_opts_foreach(qemu_find_opts("name"),
4148 parse_name, NULL, NULL)) {
4149 exit(1);
4150 }
4151
4152 #ifndef _WIN32
4153 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4154 parse_add_fd, NULL, NULL)) {
4155 exit(1);
4156 }
4157
4158 if (qemu_opts_foreach(qemu_find_opts("add-fd"),
4159 cleanup_add_fd, NULL, NULL)) {
4160 exit(1);
4161 }
4162 #endif
4163
4164 current_machine = MACHINE(object_new(object_class_get_name(
4165 OBJECT_CLASS(machine_class))));
4166 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4167 exit(0);
4168 }
4169 object_property_add_child(object_get_root(), "machine",
4170 OBJECT(current_machine), &error_abort);
4171
4172 if (machine_class->minimum_page_bits) {
4173 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4174 /* This would be a board error: specifying a minimum smaller than
4175 * a target's compile-time fixed setting.
4176 */
4177 g_assert_not_reached();
4178 }
4179 }
4180
4181 cpu_exec_init_all();
4182
4183 if (machine_class->hw_version) {
4184 qemu_set_hw_version(machine_class->hw_version);
4185 }
4186
4187 if (cpu_model && is_help_option(cpu_model)) {
4188 list_cpus(stdout, &fprintf, cpu_model);
4189 exit(0);
4190 }
4191
4192 if (!trace_init_backends()) {
4193 exit(1);
4194 }
4195 trace_init_file(trace_file);
4196
4197 /* Open the logfile at this point and set the log mask if necessary.
4198 */
4199 if (log_file) {
4200 qemu_set_log_filename(log_file, &error_fatal);
4201 }
4202
4203 if (log_mask) {
4204 int mask;
4205 mask = qemu_str_to_log_mask(log_mask);
4206 if (!mask) {
4207 qemu_print_log_usage(stdout);
4208 exit(1);
4209 }
4210 qemu_set_log(mask);
4211 } else {
4212 qemu_set_log(0);
4213 }
4214
4215 /* add configured firmware directories */
4216 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4217 for (i = 0; dirs[i] != NULL; i++) {
4218 qemu_add_data_dir(dirs[i]);
4219 }
4220 g_strfreev(dirs);
4221
4222 /* try to find datadir relative to the executable path */
4223 dir = os_find_datadir();
4224 qemu_add_data_dir(dir);
4225 g_free(dir);
4226
4227 /* add the datadir specified when building */
4228 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4229
4230 /* -L help lists the data directories and exits. */
4231 if (list_data_dirs) {
4232 for (i = 0; i < data_dir_idx; i++) {
4233 printf("%s\n", data_dir[i]);
4234 }
4235 exit(0);
4236 }
4237
4238 /* machine_class: default to UP */
4239 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4240 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4241 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4242
4243 /* default to machine_class->default_cpus */
4244 smp_cpus = machine_class->default_cpus;
4245 max_cpus = machine_class->default_cpus;
4246
4247 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4248
4249 /* sanity-check smp_cpus and max_cpus against machine_class */
4250 if (smp_cpus < machine_class->min_cpus) {
4251 error_report("Invalid SMP CPUs %d. The min CPUs "
4252 "supported by machine '%s' is %d", smp_cpus,
4253 machine_class->name, machine_class->min_cpus);
4254 exit(1);
4255 }
4256 if (max_cpus > machine_class->max_cpus) {
4257 error_report("Invalid SMP CPUs %d. The max CPUs "
4258 "supported by machine '%s' is %d", max_cpus,
4259 machine_class->name, machine_class->max_cpus);
4260 exit(1);
4261 }
4262
4263 /*
4264 * Get the default machine options from the machine if it is not already
4265 * specified either by the configuration file or by the command line.
4266 */
4267 if (machine_class->default_machine_opts) {
4268 qemu_opts_set_defaults(qemu_find_opts("machine"),
4269 machine_class->default_machine_opts, 0);
4270 }
4271
4272 qemu_opts_foreach(qemu_find_opts("device"),
4273 default_driver_check, NULL, NULL);
4274 qemu_opts_foreach(qemu_find_opts("global"),
4275 default_driver_check, NULL, NULL);
4276
4277 if (!vga_model && !default_vga) {
4278 vga_interface_type = VGA_DEVICE;
4279 }
4280 if (!has_defaults || machine_class->no_serial) {
4281 default_serial = 0;
4282 }
4283 if (!has_defaults || machine_class->no_parallel) {
4284 default_parallel = 0;
4285 }
4286 if (!has_defaults || !machine_class->use_virtcon) {
4287 default_virtcon = 0;
4288 }
4289 if (!has_defaults || !machine_class->use_sclp) {
4290 default_sclp = 0;
4291 }
4292 if (!has_defaults || machine_class->no_floppy) {
4293 default_floppy = 0;
4294 }
4295 if (!has_defaults || machine_class->no_cdrom) {
4296 default_cdrom = 0;
4297 }
4298 if (!has_defaults || machine_class->no_sdcard) {
4299 default_sdcard = 0;
4300 }
4301 if (!has_defaults) {
4302 default_monitor = 0;
4303 default_net = 0;
4304 default_vga = 0;
4305 }
4306
4307 if (is_daemonized()) {
4308 /* According to documentation and historically, -nographic redirects
4309 * serial port, parallel port and monitor to stdio, which does not work
4310 * with -daemonize. We can redirect these to null instead, but since
4311 * -nographic is legacy, let's just error out.
4312 * We disallow -nographic only if all other ports are not redirected
4313 * explicitly, to not break existing legacy setups which uses
4314 * -nographic _and_ redirects all ports explicitly - this is valid
4315 * usage, -nographic is just a no-op in this case.
4316 */
4317 if (nographic
4318 && (default_parallel || default_serial
4319 || default_monitor || default_virtcon)) {
4320 error_report("-nographic cannot be used with -daemonize");
4321 exit(1);
4322 }
4323 #ifdef CONFIG_CURSES
4324 if (dpy.type == DISPLAY_TYPE_CURSES) {
4325 error_report("curses display cannot be used with -daemonize");
4326 exit(1);
4327 }
4328 #endif
4329 }
4330
4331 if (nographic) {
4332 if (default_parallel)
4333 add_device_config(DEV_PARALLEL, "null");
4334 if (default_serial && default_monitor) {
4335 add_device_config(DEV_SERIAL, "mon:stdio");
4336 } else if (default_virtcon && default_monitor) {
4337 add_device_config(DEV_VIRTCON, "mon:stdio");
4338 } else if (default_sclp && default_monitor) {
4339 add_device_config(DEV_SCLP, "mon:stdio");
4340 } else {
4341 if (default_serial)
4342 add_device_config(DEV_SERIAL, "stdio");
4343 if (default_virtcon)
4344 add_device_config(DEV_VIRTCON, "stdio");
4345 if (default_sclp) {
4346 add_device_config(DEV_SCLP, "stdio");
4347 }
4348 if (default_monitor)
4349 monitor_parse("stdio", "readline", false);
4350 }
4351 } else {
4352 if (default_serial)
4353 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4354 if (default_parallel)
4355 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4356 if (default_monitor)
4357 monitor_parse("vc:80Cx24C", "readline", false);
4358 if (default_virtcon)
4359 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4360 if (default_sclp) {
4361 add_device_config(DEV_SCLP, "vc:80Cx24C");
4362 }
4363 }
4364
4365 #if defined(CONFIG_VNC)
4366 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4367 display_remote++;
4368 }
4369 #endif
4370 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4371 if (!qemu_display_find_default(&dpy)) {
4372 dpy.type = DISPLAY_TYPE_NONE;
4373 #if defined(CONFIG_VNC)
4374 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4375 #endif
4376 }
4377 }
4378 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4379 dpy.type = DISPLAY_TYPE_NONE;
4380 }
4381
4382 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4383 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4384 "for SDL, ignoring option");
4385 }
4386 if (dpy.has_window_close &&
4387 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4388 error_report("-no-quit is only valid for GTK and SDL, "
4389 "ignoring option");
4390 }
4391
4392 qemu_display_early_init(&dpy);
4393 qemu_console_early_init();
4394
4395 if (dpy.has_gl && dpy.gl && display_opengl == 0) {
4396 #if defined(CONFIG_OPENGL)
4397 error_report("OpenGL is not supported by the display");
4398 #else
4399 error_report("OpenGL support is disabled");
4400 #endif
4401 exit(1);
4402 }
4403
4404 page_size_init();
4405 socket_init();
4406
4407 if (qemu_opts_foreach(qemu_find_opts("object"),
4408 user_creatable_add_opts_foreach,
4409 object_create_initial, NULL)) {
4410 exit(1);
4411 }
4412
4413 if (qemu_opts_foreach(qemu_find_opts("chardev"),
4414 chardev_init_func, NULL, NULL)) {
4415 exit(1);
4416 }
4417
4418 #ifdef CONFIG_VIRTFS
4419 if (qemu_opts_foreach(qemu_find_opts("fsdev"),
4420 fsdev_init_func, NULL, NULL)) {
4421 exit(1);
4422 }
4423 #endif
4424
4425 if (qemu_opts_foreach(qemu_find_opts("device"),
4426 device_help_func, NULL, NULL)) {
4427 exit(0);
4428 }
4429
4430 machine_opts = qemu_get_machine_opts();
4431 if (qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4432 NULL)) {
4433 object_unref(OBJECT(current_machine));
4434 exit(1);
4435 }
4436
4437 configure_accelerator(current_machine);
4438
4439 /*
4440 * Register all the global properties, including accel properties,
4441 * machine properties, and user-specified ones.
4442 */
4443 register_global_properties(current_machine);
4444
4445 /*
4446 * Migration object can only be created after global properties
4447 * are applied correctly.
4448 */
4449 migration_object_init();
4450
4451 if (qtest_chrdev) {
4452 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4453 }
4454
4455 machine_opts = qemu_get_machine_opts();
4456 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4457 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4458 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4459 bios_name = qemu_opt_get(machine_opts, "firmware");
4460
4461 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4462 if (opts) {
4463 boot_order = qemu_opt_get(opts, "order");
4464 if (boot_order) {
4465 validate_bootdevices(boot_order, &error_fatal);
4466 }
4467
4468 boot_once = qemu_opt_get(opts, "once");
4469 if (boot_once) {
4470 validate_bootdevices(boot_once, &error_fatal);
4471 }
4472
4473 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4474 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4475 }
4476
4477 if (!boot_order) {
4478 boot_order = machine_class->default_boot_order;
4479 }
4480
4481 if (!kernel_cmdline) {
4482 kernel_cmdline = "";
4483 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4484 }
4485
4486 linux_boot = (kernel_filename != NULL);
4487
4488 if (!linux_boot && *kernel_cmdline != '\0') {
4489 error_report("-append only allowed with -kernel option");
4490 exit(1);
4491 }
4492
4493 if (!linux_boot && initrd_filename != NULL) {
4494 error_report("-initrd only allowed with -kernel option");
4495 exit(1);
4496 }
4497
4498 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4499 /* fall back to the -kernel/-append */
4500 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4501 }
4502
4503 os_set_line_buffering();
4504
4505 /* spice needs the timers to be initialized by this point */
4506 qemu_spice_init();
4507
4508 cpu_ticks_init();
4509 if (icount_opts) {
4510 if (!tcg_enabled()) {
4511 error_report("-icount is not allowed with hardware virtualization");
4512 exit(1);
4513 }
4514 configure_icount(icount_opts, &error_abort);
4515 qemu_opts_del(icount_opts);
4516 }
4517
4518 if (tcg_enabled()) {
4519 qemu_tcg_configure(accel_opts, &error_fatal);
4520 }
4521
4522 if (default_net) {
4523 QemuOptsList *net = qemu_find_opts("net");
4524 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4525 #ifdef CONFIG_SLIRP
4526 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4527 #endif
4528 }
4529
4530 colo_info_init();
4531
4532 if (net_init_clients(&err) < 0) {
4533 error_report_err(err);
4534 exit(1);
4535 }
4536
4537 if (qemu_opts_foreach(qemu_find_opts("object"),
4538 user_creatable_add_opts_foreach,
4539 object_create_delayed, NULL)) {
4540 exit(1);
4541 }
4542
4543 if (tpm_init() < 0) {
4544 exit(1);
4545 }
4546
4547 /* init the bluetooth world */
4548 if (foreach_device_config(DEV_BT, bt_parse))
4549 exit(1);
4550
4551 if (!xen_enabled()) {
4552 /* On 32-bit hosts, QEMU is limited by virtual address space */
4553 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4554 error_report("at most 2047 MB RAM can be simulated");
4555 exit(1);
4556 }
4557 }
4558
4559 blk_mig_init();
4560 ram_mig_init();
4561 dirty_bitmap_mig_init();
4562
4563 /* If the currently selected machine wishes to override the units-per-bus
4564 * property of its default HBA interface type, do so now. */
4565 if (machine_class->units_per_default_bus) {
4566 override_max_devs(machine_class->block_default_type,
4567 machine_class->units_per_default_bus);
4568 }
4569
4570 /* open the virtual block devices */
4571 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4572 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4573
4574 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4575 loc_push_restore(&bdo->loc);
4576 qmp_blockdev_add(bdo->bdo, &error_fatal);
4577 loc_pop(&bdo->loc);
4578 qapi_free_BlockdevOptions(bdo->bdo);
4579 g_free(bdo);
4580 }
4581 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4582 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4583 NULL, NULL);
4584 }
4585 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4586 &machine_class->block_default_type, NULL)) {
4587 exit(1);
4588 }
4589
4590 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4591 CDROM_OPTS);
4592 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4593 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4594
4595 /*
4596 * Note: qtest_enabled() (which is used in monitor_qapi_event_init())
4597 * depends on configure_accelerator() above.
4598 */
4599 monitor_init_globals();
4600
4601 if (qemu_opts_foreach(qemu_find_opts("mon"),
4602 mon_init_func, NULL, NULL)) {
4603 exit(1);
4604 }
4605
4606 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4607 exit(1);
4608 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4609 exit(1);
4610 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4611 exit(1);
4612 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4613 exit(1);
4614 }
4615 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4616 exit(1);
4617
4618 /* If no default VGA is requested, the default is "none". */
4619 if (default_vga) {
4620 if (machine_class->default_display) {
4621 vga_model = machine_class->default_display;
4622 } else if (vga_interface_available(VGA_CIRRUS)) {
4623 vga_model = "cirrus";
4624 } else if (vga_interface_available(VGA_STD)) {
4625 vga_model = "std";
4626 }
4627 }
4628 if (vga_model) {
4629 select_vgahw(vga_model);
4630 }
4631
4632 if (watchdog) {
4633 i = select_watchdog(watchdog);
4634 if (i > 0)
4635 exit (i == 1 ? 1 : 0);
4636 }
4637
4638 /* This checkpoint is required by replay to separate prior clock
4639 reading from the other reads, because timer polling functions query
4640 clock values from the log. */
4641 replay_checkpoint(CHECKPOINT_INIT);
4642 qdev_machine_init();
4643
4644 current_machine->ram_size = ram_size;
4645 current_machine->maxram_size = maxram_size;
4646 current_machine->ram_slots = ram_slots;
4647 current_machine->boot_order = boot_order;
4648
4649 /* parse features once if machine provides default cpu_type */
4650 current_machine->cpu_type = machine_class->default_cpu_type;
4651 if (cpu_model) {
4652 current_machine->cpu_type = parse_cpu_model(cpu_model);
4653 }
4654 parse_numa_opts(current_machine);
4655
4656 machine_run_board_init(current_machine);
4657
4658 realtime_init();
4659
4660 soundhw_init();
4661
4662 if (hax_enabled()) {
4663 hax_sync_vcpus();
4664 }
4665
4666 if (qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4667 parse_fw_cfg, fw_cfg_find(), NULL) != 0) {
4668 exit(1);
4669 }
4670
4671 /* init USB devices */
4672 if (machine_usb(current_machine)) {
4673 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4674 exit(1);
4675 }
4676
4677 /* Check if IGD GFX passthrough. */
4678 igd_gfx_passthru();
4679
4680 /* init generic devices */
4681 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4682 if (qemu_opts_foreach(qemu_find_opts("device"),
4683 device_init_func, NULL, NULL)) {
4684 exit(1);
4685 }
4686
4687 cpu_synchronize_all_post_init();
4688
4689 rom_reset_order_override();
4690
4691 /* Did we create any drives that we failed to create a device for? */
4692 drive_check_orphaned();
4693
4694 /* Don't warn about the default network setup that you get if
4695 * no command line -net or -netdev options are specified. There
4696 * are two cases that we would otherwise complain about:
4697 * (1) board doesn't support a NIC but the implicit "-net nic"
4698 * requested one
4699 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4700 * sets up a nic that isn't connected to anything.
4701 */
4702 if (!default_net) {
4703 net_check_clients();
4704 }
4705
4706
4707 if (boot_once) {
4708 qemu_boot_set(boot_once, &error_fatal);
4709 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4710 }
4711
4712 /* init local displays */
4713 ds = init_displaystate();
4714 qemu_display_init(ds, &dpy);
4715
4716 /* must be after terminal init, SDL library changes signal handlers */
4717 os_setup_signal_handling();
4718
4719 /* init remote displays */
4720 #ifdef CONFIG_VNC
4721 qemu_opts_foreach(qemu_find_opts("vnc"),
4722 vnc_init_func, NULL, NULL);
4723 #endif
4724
4725 if (using_spice) {
4726 qemu_spice_display_init();
4727 }
4728
4729 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4730 exit(1);
4731 }
4732
4733 qdev_machine_creation_done();
4734
4735 /* TODO: once all bus devices are qdevified, this should be done
4736 * when bus is created by qdev.c */
4737 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4738 qemu_run_machine_init_done_notifiers();
4739
4740 if (rom_check_and_register_reset() != 0) {
4741 error_report("rom check and register reset failed");
4742 exit(1);
4743 }
4744
4745 replay_start();
4746
4747 /* This checkpoint is required by replay to separate prior clock
4748 reading from the other reads, because timer polling functions query
4749 clock values from the log. */
4750 replay_checkpoint(CHECKPOINT_RESET);
4751 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4752 register_global_state();
4753 if (replay_mode != REPLAY_MODE_NONE) {
4754 replay_vmstate_init();
4755 } else if (loadvm) {
4756 Error *local_err = NULL;
4757 if (load_snapshot(loadvm, &local_err) < 0) {
4758 error_report_err(local_err);
4759 autostart = 0;
4760 }
4761 }
4762
4763 qdev_prop_check_globals();
4764 if (vmstate_dump_file) {
4765 /* dump and exit */
4766 dump_vmstate_json_to_file(vmstate_dump_file);
4767 return 0;
4768 }
4769
4770 if (incoming) {
4771 Error *local_err = NULL;
4772 qemu_start_incoming_migration(incoming, &local_err);
4773 if (local_err) {
4774 error_reportf_err(local_err, "-incoming %s: ", incoming);
4775 exit(1);
4776 }
4777 } else if (autostart) {
4778 vm_start();
4779 }
4780
4781 os_setup_post();
4782
4783 main_loop();
4784
4785 gdbserver_cleanup();
4786
4787 /* No more vcpu or device emulation activity beyond this point */
4788 vm_shutdown();
4789
4790 bdrv_close_all();
4791
4792 res_free();
4793
4794 /* vhost-user must be cleaned up before chardevs. */
4795 tpm_cleanup();
4796 net_cleanup();
4797 audio_cleanup();
4798 monitor_cleanup();
4799 qemu_chr_cleanup();
4800 user_creatable_cleanup();
4801 migration_object_finalize();
4802 /* TODO: unref root container, check all devices are ok */
4803
4804 return 0;
4805 }
AR7 emulation for QEMU