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Merge tag 'v3.1.0-rc4'
[qemu/ar7.git] / vl.c
blobf0221c0ca4d5bc20ba2ea6eefbe07bb805f6b5c0
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qemu/units.h"
27 #include "qapi/error.h"
28 #include "qemu-version.h"
29 #include "qemu/cutils.h"
30 #include "qemu/help_option.h"
31 #include "qemu/uuid.h"
32 #include "sysemu/seccomp.h"
33
34 #ifdef CONFIG_SDL
35 #if defined(__APPLE__) || defined(main)
36 #define SDL_MAIN_HANDLED
37 #include <SDL.h>
38 #if SDL_MAJOR_VERSION == 1
39 int qemu_main(int argc, char **argv);
40 int main(int argc, char **argv)
41 {
42 return qemu_main(argc, argv);
43 }
44 #undef main
45 #define main qemu_main
46 #elif SDL_MAJOR_VERSION == 2
47 #undef main
48 #else
49 #error undefined SDL version
50 #endif
51 #endif
52 #endif /* CONFIG_SDL */
53
54 #ifdef CONFIG_COCOA
55 #undef main
56 #define main qemu_main
57 #endif /* CONFIG_COCOA */
58
59
60 #include "qemu/error-report.h"
61 #include "qemu/sockets.h"
62 #include "hw/hw.h"
63 #include "hw/boards.h"
64 #include "sysemu/accel.h"
65 #include "hw/usb.h"
66 #include "hw/isa/isa.h"
67 #include "hw/scsi/scsi.h"
68 #include "hw/display/vga.h"
69 #include "hw/bt.h"
70 #include "sysemu/watchdog.h"
71 #include "hw/smbios/smbios.h"
72 #include "hw/acpi/acpi.h"
73 #include "hw/xen/xen.h"
74 #include "hw/qdev.h"
75 #include "hw/loader.h"
76 #include "monitor/qdev.h"
77 #include "sysemu/bt.h"
78 #include "net/net.h"
79 #include "net/slirp.h"
80 #include "monitor/monitor.h"
81 #include "ui/console.h"
82 #include "ui/input.h"
83 #include "sysemu/sysemu.h"
84 #include "sysemu/numa.h"
85 #include "exec/gdbstub.h"
86 #include "qemu/timer.h"
87 #include "chardev/char.h"
88 #include "qemu/bitmap.h"
89 #include "qemu/log.h"
90 #include "sysemu/blockdev.h"
91 #include "hw/block/block.h"
92 #include "migration/misc.h"
93 #include "migration/snapshot.h"
94 #include "migration/global_state.h"
95 #include "sysemu/tpm.h"
96 #include "sysemu/dma.h"
97 #include "hw/audio/soundhw.h"
98 #include "audio/audio.h"
99 #include "sysemu/cpus.h"
100 #include "migration/colo.h"
101 #include "migration/postcopy-ram.h"
102 #include "sysemu/kvm.h"
103 #include "sysemu/hax.h"
104 #include "qapi/qobject-input-visitor.h"
105 #include "qemu/option.h"
106 #include "qemu/config-file.h"
107 #include "qemu-options.h"
108 #include "qemu/main-loop.h"
109 #ifdef CONFIG_VIRTFS
110 #include "fsdev/qemu-fsdev.h"
111 #endif
112 #include "sysemu/qtest.h"
113
114 #include "disas/disas.h"
115
116
117 #include "slirp/libslirp.h"
118
119 #include "trace-root.h"
120 #include "trace/control.h"
121 #include "qemu/queue.h"
122 #include "sysemu/arch_init.h"
123
124 #include "ui/qemu-spice.h"
125 #include "qapi/string-input-visitor.h"
126 #include "qapi/opts-visitor.h"
127 #include "qapi/clone-visitor.h"
128 #include "qom/object_interfaces.h"
129 #include "exec/semihost.h"
130 #include "crypto/init.h"
131 #include "sysemu/replay.h"
132 #include "qapi/qapi-events-run-state.h"
133 #include "qapi/qapi-visit-block-core.h"
134 #include "qapi/qapi-visit-ui.h"
135 #include "qapi/qapi-commands-block-core.h"
136 #include "qapi/qapi-commands-misc.h"
137 #include "qapi/qapi-commands-run-state.h"
138 #include "qapi/qapi-commands-ui.h"
139 #include "qapi/qmp/qerror.h"
140 #include "sysemu/iothread.h"
141
142 #define MAX_VIRTIO_CONSOLES 1
143
144 static const char *data_dir[16];
145 static int data_dir_idx;
146 const char *bios_name = NULL;
147 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
148 int display_opengl;
149 const char* keyboard_layout = NULL;
150 ram_addr_t ram_size;
151 const char *mem_path = NULL;
152 int mem_prealloc = 0; /* force preallocation of physical target memory */
153 bool enable_mlock = false;
154 bool enable_cpu_pm = false;
155 int nb_nics;
156 NICInfo nd_table[MAX_NICS];
157 int autostart;
158 static enum {
159 RTC_BASE_UTC,
160 RTC_BASE_LOCALTIME,
161 RTC_BASE_DATETIME,
162 } rtc_base_type = RTC_BASE_UTC;
163 static time_t rtc_ref_start_datetime;
164 static int rtc_realtime_clock_offset; /* used only with QEMU_CLOCK_REALTIME */
165 static int rtc_host_datetime_offset = -1; /* valid & used only with
166 RTC_BASE_DATETIME */
167 QEMUClockType rtc_clock;
168 int vga_interface_type = VGA_NONE;
169 static DisplayOptions dpy;
170 int no_frame;
171 static int num_serial_hds;
172 static Chardev **serial_hds;
173 Chardev *parallel_hds[MAX_PARALLEL_PORTS];
174 Chardev *virtcon_hds[MAX_VIRTIO_CONSOLES];
175 int win2k_install_hack = 0;
176 int singlestep = 0;
177 int smp_cpus;
178 unsigned int max_cpus;
179 int smp_cores = 1;
180 int smp_threads = 1;
181 int acpi_enabled = 1;
182 int no_hpet = 0;
183 int fd_bootchk = 1;
184 static int no_reboot;
185 int no_shutdown = 0;
186 int cursor_hide = 1;
187 int graphic_rotate = 0;
188 const char *watchdog;
189 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
190 int nb_option_roms;
191 int old_param = 0;
192 const char *qemu_name;
193 int alt_grab = 0;
194 int ctrl_grab = 0;
195 unsigned int nb_prom_envs = 0;
196 const char *prom_envs[MAX_PROM_ENVS];
197 int boot_menu;
198 bool boot_strict;
199 uint8_t *boot_splash_filedata;
200 size_t boot_splash_filedata_size;
201 uint8_t qemu_extra_params_fw[2];
202
203 int icount_align_option;
204
205 /* The bytes in qemu_uuid are in the order specified by RFC4122, _not_ in the
206 * little-endian "wire format" described in the SMBIOS 2.6 specification.
207 */
208 QemuUUID qemu_uuid;
209 bool qemu_uuid_set;
210
211 /* Trace unassigned memory or i/o accesses. */
212 bool trace_unassigned;
213
214 static NotifierList exit_notifiers =
215 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
216
217 static NotifierList machine_init_done_notifiers =
218 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
219
220 bool xen_allowed;
221 uint32_t xen_domid;
222 enum xen_mode xen_mode = XEN_EMULATE;
223 bool xen_domid_restrict;
224
225 static int has_defaults = 1;
226 static int default_serial = 1;
227 static int default_parallel = 1;
228 static int default_virtcon = 1;
229 static int default_monitor = 1;
230 static int default_floppy = 1;
231 static int default_cdrom = 1;
232 static int default_sdcard = 1;
233 static int default_vga = 1;
234 static int default_net = 1;
235
236 static struct {
237 const char *driver;
238 int *flag;
239 } default_list[] = {
240 { .driver = "isa-serial", .flag = &default_serial },
241 { .driver = "isa-parallel", .flag = &default_parallel },
242 { .driver = "isa-fdc", .flag = &default_floppy },
243 { .driver = "floppy", .flag = &default_floppy },
244 { .driver = "ide-cd", .flag = &default_cdrom },
245 { .driver = "ide-hd", .flag = &default_cdrom },
246 { .driver = "ide-drive", .flag = &default_cdrom },
247 { .driver = "scsi-cd", .flag = &default_cdrom },
248 { .driver = "scsi-hd", .flag = &default_cdrom },
249 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
250 { .driver = "virtio-serial", .flag = &default_virtcon },
251 { .driver = "VGA", .flag = &default_vga },
252 { .driver = "isa-vga", .flag = &default_vga },
253 { .driver = "cirrus-vga", .flag = &default_vga },
254 { .driver = "isa-cirrus-vga", .flag = &default_vga },
255 { .driver = "vmware-svga", .flag = &default_vga },
256 { .driver = "qxl-vga", .flag = &default_vga },
257 { .driver = "virtio-vga", .flag = &default_vga },
258 };
259
260 static QemuOptsList qemu_rtc_opts = {
261 .name = "rtc",
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
263 .merge_lists = true,
264 .desc = {
265 {
266 .name = "base",
267 .type = QEMU_OPT_STRING,
268 },{
269 .name = "clock",
270 .type = QEMU_OPT_STRING,
271 },{
272 .name = "driftfix",
273 .type = QEMU_OPT_STRING,
274 },
275 { /* end of list */ }
276 },
277 };
278
279 static QemuOptsList qemu_option_rom_opts = {
280 .name = "option-rom",
281 .implied_opt_name = "romfile",
282 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
283 .desc = {
284 {
285 .name = "bootindex",
286 .type = QEMU_OPT_NUMBER,
287 }, {
288 .name = "romfile",
289 .type = QEMU_OPT_STRING,
290 },
291 { /* end of list */ }
292 },
293 };
294
295 static QemuOptsList qemu_machine_opts = {
296 .name = "machine",
297 .implied_opt_name = "type",
298 .merge_lists = true,
299 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
300 .desc = {
301 /*
302 * no elements => accept any
303 * sanity checking will happen later
304 * when setting machine properties
305 */
306 { }
307 },
308 };
309
310 static QemuOptsList qemu_accel_opts = {
311 .name = "accel",
312 .implied_opt_name = "accel",
313 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
314 .merge_lists = true,
315 .desc = {
316 {
317 .name = "accel",
318 .type = QEMU_OPT_STRING,
319 .help = "Select the type of accelerator",
320 },
321 {
322 .name = "thread",
323 .type = QEMU_OPT_STRING,
324 .help = "Enable/disable multi-threaded TCG",
325 },
326 { /* end of list */ }
327 },
328 };
329
330 static QemuOptsList qemu_boot_opts = {
331 .name = "boot-opts",
332 .implied_opt_name = "order",
333 .merge_lists = true,
334 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
335 .desc = {
336 {
337 .name = "order",
338 .type = QEMU_OPT_STRING,
339 }, {
340 .name = "once",
341 .type = QEMU_OPT_STRING,
342 }, {
343 .name = "menu",
344 .type = QEMU_OPT_BOOL,
345 }, {
346 .name = "splash",
347 .type = QEMU_OPT_STRING,
348 }, {
349 .name = "splash-time",
350 .type = QEMU_OPT_STRING,
351 }, {
352 .name = "reboot-timeout",
353 .type = QEMU_OPT_STRING,
354 }, {
355 .name = "strict",
356 .type = QEMU_OPT_BOOL,
357 },
358 { /*End of list */ }
359 },
360 };
361
362 static QemuOptsList qemu_add_fd_opts = {
363 .name = "add-fd",
364 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
365 .desc = {
366 {
367 .name = "fd",
368 .type = QEMU_OPT_NUMBER,
369 .help = "file descriptor of which a duplicate is added to fd set",
370 },{
371 .name = "set",
372 .type = QEMU_OPT_NUMBER,
373 .help = "ID of the fd set to add fd to",
374 },{
375 .name = "opaque",
376 .type = QEMU_OPT_STRING,
377 .help = "free-form string used to describe fd",
378 },
379 { /* end of list */ }
380 },
381 };
382
383 static QemuOptsList qemu_object_opts = {
384 .name = "object",
385 .implied_opt_name = "qom-type",
386 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
387 .desc = {
388 { }
389 },
390 };
391
392 static QemuOptsList qemu_tpmdev_opts = {
393 .name = "tpmdev",
394 .implied_opt_name = "type",
395 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
396 .desc = {
397 /* options are defined in the TPM backends */
398 { /* end of list */ }
399 },
400 };
401
402 static QemuOptsList qemu_realtime_opts = {
403 .name = "realtime",
404 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
405 .desc = {
406 {
407 .name = "mlock",
408 .type = QEMU_OPT_BOOL,
409 },
410 { /* end of list */ }
411 },
412 };
413
414 static QemuOptsList qemu_overcommit_opts = {
415 .name = "overcommit",
416 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
417 .desc = {
418 {
419 .name = "mem-lock",
420 .type = QEMU_OPT_BOOL,
421 },
422 {
423 .name = "cpu-pm",
424 .type = QEMU_OPT_BOOL,
425 },
426 { /* end of list */ }
427 },
428 };
429
430 static QemuOptsList qemu_msg_opts = {
431 .name = "msg",
432 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
433 .desc = {
434 {
435 .name = "timestamp",
436 .type = QEMU_OPT_BOOL,
437 },
438 { /* end of list */ }
439 },
440 };
441
442 static QemuOptsList qemu_name_opts = {
443 .name = "name",
444 .implied_opt_name = "guest",
445 .merge_lists = true,
446 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
447 .desc = {
448 {
449 .name = "guest",
450 .type = QEMU_OPT_STRING,
451 .help = "Sets the name of the guest.\n"
452 "This name will be displayed in the SDL window caption.\n"
453 "The name will also be used for the VNC server",
454 }, {
455 .name = "process",
456 .type = QEMU_OPT_STRING,
457 .help = "Sets the name of the QEMU process, as shown in top etc",
458 }, {
459 .name = "debug-threads",
460 .type = QEMU_OPT_BOOL,
461 .help = "When enabled, name the individual threads; defaults off.\n"
462 "NOTE: The thread names are for debugging and not a\n"
463 "stable API.",
464 },
465 { /* End of list */ }
466 },
467 };
468
469 static QemuOptsList qemu_mem_opts = {
470 .name = "memory",
471 .implied_opt_name = "size",
472 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
473 .merge_lists = true,
474 .desc = {
475 {
476 .name = "size",
477 .type = QEMU_OPT_SIZE,
478 },
479 {
480 .name = "slots",
481 .type = QEMU_OPT_NUMBER,
482 },
483 {
484 .name = "maxmem",
485 .type = QEMU_OPT_SIZE,
486 },
487 { /* end of list */ }
488 },
489 };
490
491 static QemuOptsList qemu_icount_opts = {
492 .name = "icount",
493 .implied_opt_name = "shift",
494 .merge_lists = true,
495 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
496 .desc = {
497 {
498 .name = "shift",
499 .type = QEMU_OPT_STRING,
500 }, {
501 .name = "align",
502 .type = QEMU_OPT_BOOL,
503 }, {
504 .name = "sleep",
505 .type = QEMU_OPT_BOOL,
506 }, {
507 .name = "rr",
508 .type = QEMU_OPT_STRING,
509 }, {
510 .name = "rrfile",
511 .type = QEMU_OPT_STRING,
512 }, {
513 .name = "rrsnapshot",
514 .type = QEMU_OPT_STRING,
515 },
516 { /* end of list */ }
517 },
518 };
519
520 static QemuOptsList qemu_semihosting_config_opts = {
521 .name = "semihosting-config",
522 .implied_opt_name = "enable",
523 .head = QTAILQ_HEAD_INITIALIZER(qemu_semihosting_config_opts.head),
524 .desc = {
525 {
526 .name = "enable",
527 .type = QEMU_OPT_BOOL,
528 }, {
529 .name = "target",
530 .type = QEMU_OPT_STRING,
531 }, {
532 .name = "arg",
533 .type = QEMU_OPT_STRING,
534 },
535 { /* end of list */ }
536 },
537 };
538
539 static QemuOptsList qemu_fw_cfg_opts = {
540 .name = "fw_cfg",
541 .implied_opt_name = "name",
542 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
543 .desc = {
544 {
545 .name = "name",
546 .type = QEMU_OPT_STRING,
547 .help = "Sets the fw_cfg name of the blob to be inserted",
548 }, {
549 .name = "file",
550 .type = QEMU_OPT_STRING,
551 .help = "Sets the name of the file from which "
552 "the fw_cfg blob will be loaded",
553 }, {
554 .name = "string",
555 .type = QEMU_OPT_STRING,
556 .help = "Sets content of the blob to be inserted from a string",
557 },
558 { /* end of list */ }
559 },
560 };
561
562 /**
563 * Get machine options
564 *
565 * Returns: machine options (never null).
566 */
567 QemuOpts *qemu_get_machine_opts(void)
568 {
569 return qemu_find_opts_singleton("machine");
570 }
571
572 const char *qemu_get_vm_name(void)
573 {
574 return qemu_name;
575 }
576
577 static void res_free(void)
578 {
579 g_free(boot_splash_filedata);
580 boot_splash_filedata = NULL;
581 }
582
583 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
584 {
585 const char *driver = qemu_opt_get(opts, "driver");
586 int i;
587
588 if (!driver)
589 return 0;
590 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
591 if (strcmp(default_list[i].driver, driver) != 0)
592 continue;
593 *(default_list[i].flag) = 0;
594 }
595 return 0;
596 }
597
598 /***********************************************************/
599 /* QEMU state */
600
601 static RunState current_run_state = RUN_STATE_PRECONFIG;
602
603 /* We use RUN_STATE__MAX but any invalid value will do */
604 static RunState vmstop_requested = RUN_STATE__MAX;
605 static QemuMutex vmstop_lock;
606
607 typedef struct {
608 RunState from;
609 RunState to;
610 } RunStateTransition;
611
612 static const RunStateTransition runstate_transitions_def[] = {
613 /* from -> to */
614 { RUN_STATE_PRECONFIG, RUN_STATE_PRELAUNCH },
615 /* Early switch to inmigrate state to allow -incoming CLI option work
616 * as it used to. TODO: delay actual switching to inmigrate state to
617 * the point after machine is built and remove this hack.
618 */
619 { RUN_STATE_PRECONFIG, RUN_STATE_INMIGRATE },
620
621 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
622 { RUN_STATE_DEBUG, RUN_STATE_FINISH_MIGRATE },
623 { RUN_STATE_DEBUG, RUN_STATE_PRELAUNCH },
624
625 { RUN_STATE_INMIGRATE, RUN_STATE_INTERNAL_ERROR },
626 { RUN_STATE_INMIGRATE, RUN_STATE_IO_ERROR },
627 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
628 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
629 { RUN_STATE_INMIGRATE, RUN_STATE_SHUTDOWN },
630 { RUN_STATE_INMIGRATE, RUN_STATE_SUSPENDED },
631 { RUN_STATE_INMIGRATE, RUN_STATE_WATCHDOG },
632 { RUN_STATE_INMIGRATE, RUN_STATE_GUEST_PANICKED },
633 { RUN_STATE_INMIGRATE, RUN_STATE_FINISH_MIGRATE },
634 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
635 { RUN_STATE_INMIGRATE, RUN_STATE_POSTMIGRATE },
636 { RUN_STATE_INMIGRATE, RUN_STATE_COLO },
637
638 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
639 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
640 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PRELAUNCH },
641
642 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
643 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_IO_ERROR, RUN_STATE_PRELAUNCH },
645
646 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
647 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
648 { RUN_STATE_PAUSED, RUN_STATE_POSTMIGRATE },
649 { RUN_STATE_PAUSED, RUN_STATE_PRELAUNCH },
650 { RUN_STATE_PAUSED, RUN_STATE_COLO},
651
652 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
653 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
654 { RUN_STATE_POSTMIGRATE, RUN_STATE_PRELAUNCH },
655
656 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
657 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
658 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
659
660 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
661 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PAUSED },
662 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
663 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_PRELAUNCH },
664 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_COLO},
665
666 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
667 { RUN_STATE_RESTORE_VM, RUN_STATE_PRELAUNCH },
668
669 { RUN_STATE_COLO, RUN_STATE_RUNNING },
670
671 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
672 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
673 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
674 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
675 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
676 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
677 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
678 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
679 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
680 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
681 { RUN_STATE_RUNNING, RUN_STATE_COLO},
682
683 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
684
685 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
686 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
687 { RUN_STATE_SHUTDOWN, RUN_STATE_PRELAUNCH },
688
689 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
690 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
691 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
692 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
693 { RUN_STATE_SUSPENDED, RUN_STATE_PRELAUNCH },
694 { RUN_STATE_SUSPENDED, RUN_STATE_COLO},
695
696 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
697 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
698 { RUN_STATE_WATCHDOG, RUN_STATE_PRELAUNCH },
699 { RUN_STATE_WATCHDOG, RUN_STATE_COLO},
700
701 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
702 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
703 { RUN_STATE_GUEST_PANICKED, RUN_STATE_PRELAUNCH },
704
705 { RUN_STATE__MAX, RUN_STATE__MAX },
706 };
707
708 static bool runstate_valid_transitions[RUN_STATE__MAX][RUN_STATE__MAX];
709
710 bool runstate_check(RunState state)
711 {
712 return current_run_state == state;
713 }
714
715 bool runstate_store(char *str, size_t size)
716 {
717 const char *state = RunState_str(current_run_state);
718 size_t len = strlen(state) + 1;
719
720 if (len > size) {
721 return false;
722 }
723 memcpy(str, state, len);
724 return true;
725 }
726
727 static void runstate_init(void)
728 {
729 const RunStateTransition *p;
730
731 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
732 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE__MAX; p++) {
733 runstate_valid_transitions[p->from][p->to] = true;
734 }
735
736 qemu_mutex_init(&vmstop_lock);
737 }
738
739 /* This function will abort() on invalid state transitions */
740 void runstate_set(RunState new_state)
741 {
742 assert(new_state < RUN_STATE__MAX);
743
744 if (current_run_state == new_state) {
745 return;
746 }
747
748 if (!runstate_valid_transitions[current_run_state][new_state]) {
749 error_report("invalid runstate transition: '%s' -> '%s'",
750 RunState_str(current_run_state),
751 RunState_str(new_state));
752 abort();
753 }
754 trace_runstate_set(new_state);
755 current_run_state = new_state;
756 }
757
758 int runstate_is_running(void)
759 {
760 return runstate_check(RUN_STATE_RUNNING);
761 }
762
763 bool runstate_needs_reset(void)
764 {
765 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
766 runstate_check(RUN_STATE_SHUTDOWN);
767 }
768
769 StatusInfo *qmp_query_status(Error **errp)
770 {
771 StatusInfo *info = g_malloc0(sizeof(*info));
772
773 info->running = runstate_is_running();
774 info->singlestep = singlestep;
775 info->status = current_run_state;
776
777 return info;
778 }
779
780 bool qemu_vmstop_requested(RunState *r)
781 {
782 qemu_mutex_lock(&vmstop_lock);
783 *r = vmstop_requested;
784 vmstop_requested = RUN_STATE__MAX;
785 qemu_mutex_unlock(&vmstop_lock);
786 return *r < RUN_STATE__MAX;
787 }
788
789 void qemu_system_vmstop_request_prepare(void)
790 {
791 qemu_mutex_lock(&vmstop_lock);
792 }
793
794 void qemu_system_vmstop_request(RunState state)
795 {
796 vmstop_requested = state;
797 qemu_mutex_unlock(&vmstop_lock);
798 qemu_notify_event();
799 }
800
801 /***********************************************************/
802 /* RTC reference time/date access */
803 static time_t qemu_ref_timedate(QEMUClockType clock)
804 {
805 time_t value = qemu_clock_get_ms(clock) / 1000;
806 switch (clock) {
807 case QEMU_CLOCK_REALTIME:
808 value -= rtc_realtime_clock_offset;
809 /* no break */
810 case QEMU_CLOCK_VIRTUAL:
811 value += rtc_ref_start_datetime;
812 break;
813 case QEMU_CLOCK_HOST:
814 if (rtc_base_type == RTC_BASE_DATETIME) {
815 value -= rtc_host_datetime_offset;
816 }
817 break;
818 default:
819 assert(0);
820 }
821 return value;
822 }
823
824 void qemu_get_timedate(struct tm *tm, int offset)
825 {
826 time_t ti = qemu_ref_timedate(rtc_clock);
827
828 ti += offset;
829
830 switch (rtc_base_type) {
831 case RTC_BASE_DATETIME:
832 case RTC_BASE_UTC:
833 gmtime_r(&ti, tm);
834 break;
835 case RTC_BASE_LOCALTIME:
836 localtime_r(&ti, tm);
837 break;
838 }
839 }
840
841 int qemu_timedate_diff(struct tm *tm)
842 {
843 time_t seconds;
844
845 switch (rtc_base_type) {
846 case RTC_BASE_DATETIME:
847 case RTC_BASE_UTC:
848 seconds = mktimegm(tm);
849 break;
850 case RTC_BASE_LOCALTIME:
851 {
852 struct tm tmp = *tm;
853 tmp.tm_isdst = -1; /* use timezone to figure it out */
854 seconds = mktime(&tmp);
855 break;
856 }
857 default:
858 abort();
859 }
860
861 return seconds - qemu_ref_timedate(QEMU_CLOCK_HOST);
862 }
863
864 static void configure_rtc_base_datetime(const char *startdate)
865 {
866 time_t rtc_start_datetime;
867 struct tm tm;
868
869 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d", &tm.tm_year, &tm.tm_mon,
870 &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6) {
871 /* OK */
872 } else if (sscanf(startdate, "%d-%d-%d",
873 &tm.tm_year, &tm.tm_mon, &tm.tm_mday) == 3) {
874 tm.tm_hour = 0;
875 tm.tm_min = 0;
876 tm.tm_sec = 0;
877 } else {
878 goto date_fail;
879 }
880 tm.tm_year -= 1900;
881 tm.tm_mon--;
882 rtc_start_datetime = mktimegm(&tm);
883 if (rtc_start_datetime == -1) {
884 date_fail:
885 error_report("invalid datetime format");
886 error_printf("valid formats: "
887 "'2006-06-17T16:01:21' or '2006-06-17'\n");
888 exit(1);
889 }
890 rtc_host_datetime_offset = rtc_ref_start_datetime - rtc_start_datetime;
891 rtc_ref_start_datetime = rtc_start_datetime;
892 }
893
894 static void configure_rtc(QemuOpts *opts)
895 {
896 const char *value;
897
898 /* Set defaults */
899 rtc_clock = QEMU_CLOCK_HOST;
900 rtc_ref_start_datetime = qemu_clock_get_ms(QEMU_CLOCK_HOST) / 1000;
901 rtc_realtime_clock_offset = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) / 1000;
902
903 value = qemu_opt_get(opts, "base");
904 if (value) {
905 if (!strcmp(value, "utc")) {
906 rtc_base_type = RTC_BASE_UTC;
907 } else if (!strcmp(value, "localtime")) {
908 Error *blocker = NULL;
909 rtc_base_type = RTC_BASE_LOCALTIME;
910 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED,
911 "-rtc base=localtime");
912 replay_add_blocker(blocker);
913 } else {
914 rtc_base_type = RTC_BASE_DATETIME;
915 configure_rtc_base_datetime(value);
916 }
917 }
918 value = qemu_opt_get(opts, "clock");
919 if (value) {
920 if (!strcmp(value, "host")) {
921 rtc_clock = QEMU_CLOCK_HOST;
922 } else if (!strcmp(value, "rt")) {
923 rtc_clock = QEMU_CLOCK_REALTIME;
924 } else if (!strcmp(value, "vm")) {
925 rtc_clock = QEMU_CLOCK_VIRTUAL;
926 } else {
927 error_report("invalid option value '%s'", value);
928 exit(1);
929 }
930 }
931 value = qemu_opt_get(opts, "driftfix");
932 if (value) {
933 if (!strcmp(value, "slew")) {
934 static GlobalProperty slew_lost_ticks = {
935 .driver = "mc146818rtc",
936 .property = "lost_tick_policy",
937 .value = "slew",
938 };
939
940 qdev_prop_register_global(&slew_lost_ticks);
941 } else if (!strcmp(value, "none")) {
942 /* discard is default */
943 } else {
944 error_report("invalid option value '%s'", value);
945 exit(1);
946 }
947 }
948 }
949
950 /***********************************************************/
951 /* Bluetooth support */
952 static int nb_hcis;
953 static int cur_hci;
954 static struct HCIInfo *hci_table[MAX_NICS];
955
956 struct HCIInfo *qemu_next_hci(void)
957 {
958 if (cur_hci == nb_hcis)
959 return &null_hci;
960
961 return hci_table[cur_hci++];
962 }
963
964 static int bt_hci_parse(const char *str)
965 {
966 struct HCIInfo *hci;
967 bdaddr_t bdaddr;
968
969 if (nb_hcis >= MAX_NICS) {
970 error_report("too many bluetooth HCIs (max %i)", MAX_NICS);
971 return -1;
972 }
973
974 hci = hci_init(str);
975 if (!hci)
976 return -1;
977
978 bdaddr.b[0] = 0x52;
979 bdaddr.b[1] = 0x54;
980 bdaddr.b[2] = 0x00;
981 bdaddr.b[3] = 0x12;
982 bdaddr.b[4] = 0x34;
983 bdaddr.b[5] = 0x56 + nb_hcis;
984 hci->bdaddr_set(hci, bdaddr.b);
985
986 hci_table[nb_hcis++] = hci;
987
988 return 0;
989 }
990
991 static void bt_vhci_add(int vlan_id)
992 {
993 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
994
995 if (!vlan->slave)
996 warn_report("adding a VHCI to an empty scatternet %i",
997 vlan_id);
998
999 bt_vhci_init(bt_new_hci(vlan));
1000 }
1001
1002 static struct bt_device_s *bt_device_add(const char *opt)
1003 {
1004 struct bt_scatternet_s *vlan;
1005 int vlan_id = 0;
1006 char *endp = strstr(opt, ",vlan=");
1007 int len = (endp ? endp - opt : strlen(opt)) + 1;
1008 char devname[10];
1009
1010 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1011
1012 if (endp) {
1013 vlan_id = strtol(endp + 6, &endp, 0);
1014 if (*endp) {
1015 error_report("unrecognised bluetooth vlan Id");
1016 return 0;
1017 }
1018 }
1019
1020 vlan = qemu_find_bt_vlan(vlan_id);
1021
1022 if (!vlan->slave)
1023 warn_report("adding a slave device to an empty scatternet %i",
1024 vlan_id);
1025
1026 if (!strcmp(devname, "keyboard"))
1027 return bt_keyboard_init(vlan);
1028
1029 error_report("unsupported bluetooth device '%s'", devname);
1030 return 0;
1031 }
1032
1033 static int bt_parse(const char *opt)
1034 {
1035 const char *endp, *p;
1036 int vlan;
1037
1038 if (strstart(opt, "hci", &endp)) {
1039 if (!*endp || *endp == ',') {
1040 if (*endp)
1041 if (!strstart(endp, ",vlan=", 0))
1042 opt = endp + 1;
1043
1044 return bt_hci_parse(opt);
1045 }
1046 } else if (strstart(opt, "vhci", &endp)) {
1047 if (!*endp || *endp == ',') {
1048 if (*endp) {
1049 if (strstart(endp, ",vlan=", &p)) {
1050 vlan = strtol(p, (char **) &endp, 0);
1051 if (*endp) {
1052 error_report("bad scatternet '%s'", p);
1053 return 1;
1054 }
1055 } else {
1056 error_report("bad parameter '%s'", endp + 1);
1057 return 1;
1058 }
1059 } else
1060 vlan = 0;
1061
1062 bt_vhci_add(vlan);
1063 return 0;
1064 }
1065 } else if (strstart(opt, "device:", &endp))
1066 return !bt_device_add(endp);
1067
1068 error_report("bad bluetooth parameter '%s'", opt);
1069 return 1;
1070 }
1071
1072 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
1073 {
1074 const char *proc_name;
1075
1076 if (qemu_opt_get(opts, "debug-threads")) {
1077 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
1078 }
1079 qemu_name = qemu_opt_get(opts, "guest");
1080
1081 proc_name = qemu_opt_get(opts, "process");
1082 if (proc_name) {
1083 os_set_proc_name(proc_name);
1084 }
1085
1086 return 0;
1087 }
1088
1089 bool defaults_enabled(void)
1090 {
1091 return has_defaults;
1092 }
1093
1094 #ifndef _WIN32
1095 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1096 {
1097 int fd, dupfd, flags;
1098 int64_t fdset_id;
1099 const char *fd_opaque = NULL;
1100 AddfdInfo *fdinfo;
1101
1102 fd = qemu_opt_get_number(opts, "fd", -1);
1103 fdset_id = qemu_opt_get_number(opts, "set", -1);
1104 fd_opaque = qemu_opt_get(opts, "opaque");
1105
1106 if (fd < 0) {
1107 error_setg(errp, "fd option is required and must be non-negative");
1108 return -1;
1109 }
1110
1111 if (fd <= STDERR_FILENO) {
1112 error_setg(errp, "fd cannot be a standard I/O stream");
1113 return -1;
1114 }
1115
1116 /*
1117 * All fds inherited across exec() necessarily have FD_CLOEXEC
1118 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1119 */
1120 flags = fcntl(fd, F_GETFD);
1121 if (flags == -1 || (flags & FD_CLOEXEC)) {
1122 error_setg(errp, "fd is not valid or already in use");
1123 return -1;
1124 }
1125
1126 if (fdset_id < 0) {
1127 error_setg(errp, "set option is required and must be non-negative");
1128 return -1;
1129 }
1130
1131 #ifdef F_DUPFD_CLOEXEC
1132 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1133 #else
1134 dupfd = dup(fd);
1135 if (dupfd != -1) {
1136 qemu_set_cloexec(dupfd);
1137 }
1138 #endif
1139 if (dupfd == -1) {
1140 error_setg(errp, "error duplicating fd: %s", strerror(errno));
1141 return -1;
1142 }
1143
1144 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1145 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, !!fd_opaque, fd_opaque,
1146 &error_abort);
1147 g_free(fdinfo);
1148
1149 return 0;
1150 }
1151
1152 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
1153 {
1154 int fd;
1155
1156 fd = qemu_opt_get_number(opts, "fd", -1);
1157 close(fd);
1158
1159 return 0;
1160 }
1161 #endif
1162
1163 /***********************************************************/
1164 /* QEMU Block devices */
1165
1166 #define HD_OPTS "media=disk"
1167 #define CDROM_OPTS "media=cdrom"
1168 #define FD_OPTS ""
1169 #define PFLASH_OPTS ""
1170 #define MTD_OPTS ""
1171 #define SD_OPTS ""
1172
1173 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
1174 {
1175 BlockInterfaceType *block_default_type = opaque;
1176
1177 return drive_new(opts, *block_default_type, errp) == NULL;
1178 }
1179
1180 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
1181 {
1182 if (qemu_opt_get(opts, "snapshot") == NULL) {
1183 qemu_opt_set(opts, "snapshot", "on", &error_abort);
1184 }
1185 return 0;
1186 }
1187
1188 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1189 int index, const char *optstr)
1190 {
1191 QemuOpts *opts;
1192 DriveInfo *dinfo;
1193
1194 if (!enable || drive_get_by_index(type, index)) {
1195 return;
1196 }
1197
1198 opts = drive_add(type, index, NULL, optstr);
1199 if (snapshot) {
1200 drive_enable_snapshot(NULL, opts, NULL);
1201 }
1202
1203 dinfo = drive_new(opts, type, &error_abort);
1204 dinfo->is_default = true;
1205
1206 }
1207
1208 static QemuOptsList qemu_smp_opts = {
1209 .name = "smp-opts",
1210 .implied_opt_name = "cpus",
1211 .merge_lists = true,
1212 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1213 .desc = {
1214 {
1215 .name = "cpus",
1216 .type = QEMU_OPT_NUMBER,
1217 }, {
1218 .name = "sockets",
1219 .type = QEMU_OPT_NUMBER,
1220 }, {
1221 .name = "cores",
1222 .type = QEMU_OPT_NUMBER,
1223 }, {
1224 .name = "threads",
1225 .type = QEMU_OPT_NUMBER,
1226 }, {
1227 .name = "maxcpus",
1228 .type = QEMU_OPT_NUMBER,
1229 },
1230 { /*End of list */ }
1231 },
1232 };
1233
1234 static void smp_parse(QemuOpts *opts)
1235 {
1236 if (opts) {
1237 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1238 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1239 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1240 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1241
1242 /* compute missing values, prefer sockets over cores over threads */
1243 if (cpus == 0 || sockets == 0) {
1244 cores = cores > 0 ? cores : 1;
1245 threads = threads > 0 ? threads : 1;
1246 if (cpus == 0) {
1247 sockets = sockets > 0 ? sockets : 1;
1248 cpus = cores * threads * sockets;
1249 } else {
1250 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1251 sockets = max_cpus / (cores * threads);
1252 }
1253 } else if (cores == 0) {
1254 threads = threads > 0 ? threads : 1;
1255 cores = cpus / (sockets * threads);
1256 cores = cores > 0 ? cores : 1;
1257 } else if (threads == 0) {
1258 threads = cpus / (cores * sockets);
1259 threads = threads > 0 ? threads : 1;
1260 } else if (sockets * cores * threads < cpus) {
1261 error_report("cpu topology: "
1262 "sockets (%u) * cores (%u) * threads (%u) < "
1263 "smp_cpus (%u)",
1264 sockets, cores, threads, cpus);
1265 exit(1);
1266 }
1267
1268 max_cpus = qemu_opt_get_number(opts, "maxcpus", cpus);
1269
1270 if (max_cpus < cpus) {
1271 error_report("maxcpus must be equal to or greater than smp");
1272 exit(1);
1273 }
1274
1275 if (sockets * cores * threads > max_cpus) {
1276 error_report("cpu topology: "
1277 "sockets (%u) * cores (%u) * threads (%u) > "
1278 "maxcpus (%u)",
1279 sockets, cores, threads, max_cpus);
1280 exit(1);
1281 }
1282
1283 if (sockets * cores * threads != max_cpus) {
1284 warn_report("Invalid CPU topology deprecated: "
1285 "sockets (%u) * cores (%u) * threads (%u) "
1286 "!= maxcpus (%u)",
1287 sockets, cores, threads, max_cpus);
1288 }
1289
1290 smp_cpus = cpus;
1291 smp_cores = cores;
1292 smp_threads = threads;
1293 }
1294
1295 if (smp_cpus > 1) {
1296 Error *blocker = NULL;
1297 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
1298 replay_add_blocker(blocker);
1299 }
1300 }
1301
1302 static void realtime_init(void)
1303 {
1304 if (enable_mlock) {
1305 if (os_mlock() < 0) {
1306 error_report("locking memory failed");
1307 exit(1);
1308 }
1309 }
1310 }
1311
1312
1313 static void configure_msg(QemuOpts *opts)
1314 {
1315 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1316 }
1317
1318 /***********************************************************/
1319 /* Semihosting */
1320
1321 typedef struct SemihostingConfig {
1322 bool enabled;
1323 SemihostingTarget target;
1324 const char **argv;
1325 int argc;
1326 const char *cmdline; /* concatenated argv */
1327 } SemihostingConfig;
1328
1329 static SemihostingConfig semihosting;
1330
1331 bool semihosting_enabled(void)
1332 {
1333 return semihosting.enabled;
1334 }
1335
1336 SemihostingTarget semihosting_get_target(void)
1337 {
1338 return semihosting.target;
1339 }
1340
1341 const char *semihosting_get_arg(int i)
1342 {
1343 if (i >= semihosting.argc) {
1344 return NULL;
1345 }
1346 return semihosting.argv[i];
1347 }
1348
1349 int semihosting_get_argc(void)
1350 {
1351 return semihosting.argc;
1352 }
1353
1354 const char *semihosting_get_cmdline(void)
1355 {
1356 if (semihosting.cmdline == NULL && semihosting.argc > 0) {
1357 semihosting.cmdline = g_strjoinv(" ", (gchar **)semihosting.argv);
1358 }
1359 return semihosting.cmdline;
1360 }
1361
1362 static int add_semihosting_arg(void *opaque,
1363 const char *name, const char *val,
1364 Error **errp)
1365 {
1366 SemihostingConfig *s = opaque;
1367 if (strcmp(name, "arg") == 0) {
1368 s->argc++;
1369 /* one extra element as g_strjoinv() expects NULL-terminated array */
1370 s->argv = g_realloc(s->argv, (s->argc + 1) * sizeof(void *));
1371 s->argv[s->argc - 1] = val;
1372 s->argv[s->argc] = NULL;
1373 }
1374 return 0;
1375 }
1376
1377 /* Use strings passed via -kernel/-append to initialize semihosting.argv[] */
1378 static inline void semihosting_arg_fallback(const char *file, const char *cmd)
1379 {
1380 char *cmd_token;
1381
1382 /* argv[0] */
1383 add_semihosting_arg(&semihosting, "arg", file, NULL);
1384
1385 /* split -append and initialize argv[1..n] */
1386 cmd_token = strtok(g_strdup(cmd), " ");
1387 while (cmd_token) {
1388 add_semihosting_arg(&semihosting, "arg", cmd_token, NULL);
1389 cmd_token = strtok(NULL, " ");
1390 }
1391 }
1392
1393 /* Now we still need this for compatibility with XEN. */
1394 bool has_igd_gfx_passthru;
1395 static void igd_gfx_passthru(void)
1396 {
1397 has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
1398 }
1399
1400 /***********************************************************/
1401 /* USB devices */
1402
1403 static int usb_device_add(const char *devname)
1404 {
1405 USBDevice *dev = NULL;
1406
1407 if (!machine_usb(current_machine)) {
1408 return -1;
1409 }
1410
1411 dev = usbdevice_create(devname);
1412 if (!dev)
1413 return -1;
1414
1415 return 0;
1416 }
1417
1418 static int usb_parse(const char *cmdline)
1419 {
1420 int r;
1421 r = usb_device_add(cmdline);
1422 if (r < 0) {
1423 error_report("could not add USB device '%s'", cmdline);
1424 }
1425 return r;
1426 }
1427
1428 /***********************************************************/
1429 /* machine registration */
1430
1431 MachineState *current_machine;
1432
1433 static MachineClass *find_machine(const char *name)
1434 {
1435 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1436 MachineClass *mc = NULL;
1437
1438 for (el = machines; el; el = el->next) {
1439 MachineClass *temp = el->data;
1440
1441 if (!strcmp(temp->name, name)) {
1442 mc = temp;
1443 break;
1444 }
1445 if (temp->alias &&
1446 !strcmp(temp->alias, name)) {
1447 mc = temp;
1448 break;
1449 }
1450 }
1451
1452 g_slist_free(machines);
1453 return mc;
1454 }
1455
1456 MachineClass *find_default_machine(void)
1457 {
1458 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1459 MachineClass *mc = NULL;
1460
1461 for (el = machines; el; el = el->next) {
1462 MachineClass *temp = el->data;
1463
1464 if (temp->is_default) {
1465 mc = temp;
1466 break;
1467 }
1468 }
1469
1470 g_slist_free(machines);
1471 return mc;
1472 }
1473
1474 MachineInfoList *qmp_query_machines(Error **errp)
1475 {
1476 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
1477 MachineInfoList *mach_list = NULL;
1478
1479 for (el = machines; el; el = el->next) {
1480 MachineClass *mc = el->data;
1481 MachineInfoList *entry;
1482 MachineInfo *info;
1483
1484 info = g_malloc0(sizeof(*info));
1485 if (mc->is_default) {
1486 info->has_is_default = true;
1487 info->is_default = true;
1488 }
1489
1490 if (mc->alias) {
1491 info->has_alias = true;
1492 info->alias = g_strdup(mc->alias);
1493 }
1494
1495 info->name = g_strdup(mc->name);
1496 info->cpu_max = !mc->max_cpus ? 1 : mc->max_cpus;
1497 info->hotpluggable_cpus = mc->has_hotpluggable_cpus;
1498
1499 entry = g_malloc0(sizeof(*entry));
1500 entry->value = info;
1501 entry->next = mach_list;
1502 mach_list = entry;
1503 }
1504
1505 g_slist_free(machines);
1506 return mach_list;
1507 }
1508
1509 static int machine_help_func(QemuOpts *opts, MachineState *machine)
1510 {
1511 ObjectProperty *prop;
1512 ObjectPropertyIterator iter;
1513
1514 if (!qemu_opt_has_help_opt(opts)) {
1515 return 0;
1516 }
1517
1518 object_property_iter_init(&iter, OBJECT(machine));
1519 while ((prop = object_property_iter_next(&iter))) {
1520 if (!prop->set) {
1521 continue;
1522 }
1523
1524 error_printf("%s.%s=%s", MACHINE_GET_CLASS(machine)->name,
1525 prop->name, prop->type);
1526 if (prop->description) {
1527 error_printf(" (%s)\n", prop->description);
1528 } else {
1529 error_printf("\n");
1530 }
1531 }
1532
1533 return 1;
1534 }
1535
1536 struct vm_change_state_entry {
1537 VMChangeStateHandler *cb;
1538 void *opaque;
1539 QLIST_ENTRY (vm_change_state_entry) entries;
1540 };
1541
1542 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1543
1544 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1545 void *opaque)
1546 {
1547 VMChangeStateEntry *e;
1548
1549 e = g_malloc0(sizeof (*e));
1550
1551 e->cb = cb;
1552 e->opaque = opaque;
1553 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1554 return e;
1555 }
1556
1557 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1558 {
1559 QLIST_REMOVE (e, entries);
1560 g_free (e);
1561 }
1562
1563 void vm_state_notify(int running, RunState state)
1564 {
1565 VMChangeStateEntry *e, *next;
1566
1567 trace_vm_state_notify(running, state);
1568
1569 QLIST_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
1570 e->cb(e->opaque, running, state);
1571 }
1572 }
1573
1574 static ShutdownCause reset_requested;
1575 static ShutdownCause shutdown_requested;
1576 static int shutdown_signal;
1577 static pid_t shutdown_pid;
1578 static int powerdown_requested;
1579 static int debug_requested;
1580 static int suspend_requested;
1581 static bool preconfig_exit_requested = true;
1582 static WakeupReason wakeup_reason;
1583 static NotifierList powerdown_notifiers =
1584 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1585 static NotifierList suspend_notifiers =
1586 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1587 static NotifierList wakeup_notifiers =
1588 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1589 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1590
1591 ShutdownCause qemu_shutdown_requested_get(void)
1592 {
1593 return shutdown_requested;
1594 }
1595
1596 ShutdownCause qemu_reset_requested_get(void)
1597 {
1598 return reset_requested;
1599 }
1600
1601 static int qemu_shutdown_requested(void)
1602 {
1603 return atomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
1604 }
1605
1606 static void qemu_kill_report(void)
1607 {
1608 if (!qtest_driver() && shutdown_signal) {
1609 if (shutdown_pid == 0) {
1610 /* This happens for eg ^C at the terminal, so it's worth
1611 * avoiding printing an odd message in that case.
1612 */
1613 error_report("terminating on signal %d", shutdown_signal);
1614 } else {
1615 char *shutdown_cmd = qemu_get_pid_name(shutdown_pid);
1616
1617 error_report("terminating on signal %d from pid " FMT_pid " (%s)",
1618 shutdown_signal, shutdown_pid,
1619 shutdown_cmd ? shutdown_cmd : "<unknown process>");
1620 g_free(shutdown_cmd);
1621 }
1622 shutdown_signal = 0;
1623 }
1624 }
1625
1626 static ShutdownCause qemu_reset_requested(void)
1627 {
1628 ShutdownCause r = reset_requested;
1629
1630 if (r && replay_checkpoint(CHECKPOINT_RESET_REQUESTED)) {
1631 reset_requested = SHUTDOWN_CAUSE_NONE;
1632 return r;
1633 }
1634 return SHUTDOWN_CAUSE_NONE;
1635 }
1636
1637 static int qemu_suspend_requested(void)
1638 {
1639 int r = suspend_requested;
1640 if (r && replay_checkpoint(CHECKPOINT_SUSPEND_REQUESTED)) {
1641 suspend_requested = 0;
1642 return r;
1643 }
1644 return false;
1645 }
1646
1647 static WakeupReason qemu_wakeup_requested(void)
1648 {
1649 return wakeup_reason;
1650 }
1651
1652 static int qemu_powerdown_requested(void)
1653 {
1654 int r = powerdown_requested;
1655 powerdown_requested = 0;
1656 return r;
1657 }
1658
1659 static int qemu_debug_requested(void)
1660 {
1661 int r = debug_requested;
1662 debug_requested = 0;
1663 return r;
1664 }
1665
1666 void qemu_exit_preconfig_request(void)
1667 {
1668 preconfig_exit_requested = true;
1669 }
1670
1671 /*
1672 * Reset the VM. Issue an event unless @reason is SHUTDOWN_CAUSE_NONE.
1673 */
1674 void qemu_system_reset(ShutdownCause reason)
1675 {
1676 MachineClass *mc;
1677
1678 mc = current_machine ? MACHINE_GET_CLASS(current_machine) : NULL;
1679
1680 cpu_synchronize_all_states();
1681
1682 if (mc && mc->reset) {
1683 mc->reset();
1684 } else {
1685 qemu_devices_reset();
1686 }
1687 if (reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1688 qapi_event_send_reset(shutdown_caused_by_guest(reason));
1689 }
1690 cpu_synchronize_all_post_reset();
1691 }
1692
1693 void qemu_system_guest_panicked(GuestPanicInformation *info)
1694 {
1695 qemu_log_mask(LOG_GUEST_ERROR, "Guest crashed");
1696
1697 if (current_cpu) {
1698 current_cpu->crash_occurred = true;
1699 }
1700 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
1701 !!info, info);
1702 vm_stop(RUN_STATE_GUEST_PANICKED);
1703 if (!no_shutdown) {
1704 qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
1705 !!info, info);
1706 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_PANIC);
1707 }
1708
1709 if (info) {
1710 if (info->type == GUEST_PANIC_INFORMATION_TYPE_HYPER_V) {
1711 qemu_log_mask(LOG_GUEST_ERROR, "\nHV crash parameters: (%#"PRIx64
1712 " %#"PRIx64" %#"PRIx64" %#"PRIx64" %#"PRIx64")\n",
1713 info->u.hyper_v.arg1,
1714 info->u.hyper_v.arg2,
1715 info->u.hyper_v.arg3,
1716 info->u.hyper_v.arg4,
1717 info->u.hyper_v.arg5);
1718 } else if (info->type == GUEST_PANIC_INFORMATION_TYPE_S390) {
1719 qemu_log_mask(LOG_GUEST_ERROR, " on cpu %d: %s\n"
1720 "PSW: 0x%016" PRIx64 " 0x%016" PRIx64"\n",
1721 info->u.s390.core,
1722 S390CrashReason_str(info->u.s390.reason),
1723 info->u.s390.psw_mask,
1724 info->u.s390.psw_addr);
1725 }
1726 qapi_free_GuestPanicInformation(info);
1727 }
1728 }
1729
1730 void qemu_system_reset_request(ShutdownCause reason)
1731 {
1732 if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
1733 shutdown_requested = reason;
1734 } else {
1735 reset_requested = reason;
1736 }
1737 cpu_stop_current();
1738 qemu_notify_event();
1739 }
1740
1741 static void qemu_system_suspend(void)
1742 {
1743 pause_all_vcpus();
1744 notifier_list_notify(&suspend_notifiers, NULL);
1745 runstate_set(RUN_STATE_SUSPENDED);
1746 qapi_event_send_suspend();
1747 }
1748
1749 void qemu_system_suspend_request(void)
1750 {
1751 if (runstate_check(RUN_STATE_SUSPENDED)) {
1752 return;
1753 }
1754 suspend_requested = 1;
1755 cpu_stop_current();
1756 qemu_notify_event();
1757 }
1758
1759 void qemu_register_suspend_notifier(Notifier *notifier)
1760 {
1761 notifier_list_add(&suspend_notifiers, notifier);
1762 }
1763
1764 void qemu_system_wakeup_request(WakeupReason reason)
1765 {
1766 trace_system_wakeup_request(reason);
1767
1768 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1769 return;
1770 }
1771 if (!(wakeup_reason_mask & (1 << reason))) {
1772 return;
1773 }
1774 runstate_set(RUN_STATE_RUNNING);
1775 wakeup_reason = reason;
1776 qemu_notify_event();
1777 }
1778
1779 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1780 {
1781 if (enabled) {
1782 wakeup_reason_mask |= (1 << reason);
1783 } else {
1784 wakeup_reason_mask &= ~(1 << reason);
1785 }
1786 }
1787
1788 void qemu_register_wakeup_notifier(Notifier *notifier)
1789 {
1790 notifier_list_add(&wakeup_notifiers, notifier);
1791 }
1792
1793 void qemu_system_killed(int signal, pid_t pid)
1794 {
1795 shutdown_signal = signal;
1796 shutdown_pid = pid;
1797 no_shutdown = 0;
1798
1799 /* Cannot call qemu_system_shutdown_request directly because
1800 * we are in a signal handler.
1801 */
1802 shutdown_requested = SHUTDOWN_CAUSE_HOST_SIGNAL;
1803 qemu_notify_event();
1804 }
1805
1806 void qemu_system_shutdown_request(ShutdownCause reason)
1807 {
1808 trace_qemu_system_shutdown_request(reason);
1809 replay_shutdown_request(reason);
1810 shutdown_requested = reason;
1811 qemu_notify_event();
1812 }
1813
1814 static void qemu_system_powerdown(void)
1815 {
1816 qapi_event_send_powerdown();
1817 notifier_list_notify(&powerdown_notifiers, NULL);
1818 }
1819
1820 void qemu_system_powerdown_request(void)
1821 {
1822 trace_qemu_system_powerdown_request();
1823 powerdown_requested = 1;
1824 qemu_notify_event();
1825 }
1826
1827 void qemu_register_powerdown_notifier(Notifier *notifier)
1828 {
1829 notifier_list_add(&powerdown_notifiers, notifier);
1830 }
1831
1832 void qemu_system_debug_request(void)
1833 {
1834 debug_requested = 1;
1835 qemu_notify_event();
1836 }
1837
1838 static bool main_loop_should_exit(void)
1839 {
1840 RunState r;
1841 ShutdownCause request;
1842
1843 if (preconfig_exit_requested) {
1844 if (runstate_check(RUN_STATE_PRECONFIG)) {
1845 runstate_set(RUN_STATE_PRELAUNCH);
1846 }
1847 preconfig_exit_requested = false;
1848 return true;
1849 }
1850 if (qemu_debug_requested()) {
1851 vm_stop(RUN_STATE_DEBUG);
1852 }
1853 if (qemu_suspend_requested()) {
1854 qemu_system_suspend();
1855 }
1856 request = qemu_shutdown_requested();
1857 if (request) {
1858 qemu_kill_report();
1859 qapi_event_send_shutdown(shutdown_caused_by_guest(request));
1860 if (no_shutdown) {
1861 vm_stop(RUN_STATE_SHUTDOWN);
1862 } else {
1863 return true;
1864 }
1865 }
1866 request = qemu_reset_requested();
1867 if (request) {
1868 pause_all_vcpus();
1869 qemu_system_reset(request);
1870 resume_all_vcpus();
1871 if (!runstate_check(RUN_STATE_RUNNING) &&
1872 !runstate_check(RUN_STATE_INMIGRATE)) {
1873 runstate_set(RUN_STATE_PRELAUNCH);
1874 }
1875 }
1876 if (qemu_wakeup_requested()) {
1877 pause_all_vcpus();
1878 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
1879 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1880 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1881 resume_all_vcpus();
1882 qapi_event_send_wakeup();
1883 }
1884 if (qemu_powerdown_requested()) {
1885 qemu_system_powerdown();
1886 }
1887 if (qemu_vmstop_requested(&r)) {
1888 vm_stop(r);
1889 }
1890 return false;
1891 }
1892
1893 static void main_loop(void)
1894 {
1895 #ifdef CONFIG_PROFILER
1896 int64_t ti;
1897 #endif
1898 while (!main_loop_should_exit()) {
1899 #ifdef CONFIG_PROFILER
1900 ti = profile_getclock();
1901 #endif
1902 main_loop_wait(false);
1903 #ifdef CONFIG_PROFILER
1904 dev_time += profile_getclock() - ti;
1905 #endif
1906 }
1907 }
1908
1909 static void version(void)
1910 {
1911 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
1912 QEMU_COPYRIGHT "\n");
1913 }
1914
1915 static void QEMU_NORETURN help(int exitcode)
1916 {
1917 version();
1918 printf("usage: %s [options] [disk_image]\n\n"
1919 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
1920 error_get_progname());
1921
1922 #define QEMU_OPTIONS_GENERATE_HELP
1923 #include "qemu-options-wrapper.h"
1924
1925 printf("\nDuring emulation, the following keys are useful:\n"
1926 "ctrl-alt-f toggle full screen\n"
1927 "ctrl-alt-n switch to virtual console 'n'\n"
1928 "ctrl-alt toggle mouse and keyboard grab\n"
1929 "\n"
1930 "When using -nographic, press 'ctrl-a h' to get some help.\n"
1931 "\n"
1932 QEMU_HELP_BOTTOM "\n");
1933
1934 exit(exitcode);
1935 }
1936
1937 #define HAS_ARG 0x0001
1938
1939 typedef struct QEMUOption {
1940 const char *name;
1941 int flags;
1942 int index;
1943 uint32_t arch_mask;
1944 } QEMUOption;
1945
1946 static const QEMUOption qemu_options[] = {
1947 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1948 #define QEMU_OPTIONS_GENERATE_OPTIONS
1949 #include "qemu-options-wrapper.h"
1950 { NULL },
1951 };
1952
1953 typedef struct VGAInterfaceInfo {
1954 const char *opt_name; /* option name */
1955 const char *name; /* human-readable name */
1956 /* Class names indicating that support is available.
1957 * If no class is specified, the interface is always available */
1958 const char *class_names[2];
1959 } VGAInterfaceInfo;
1960
1961 static VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
1962 [VGA_NONE] = {
1963 .opt_name = "none",
1964 },
1965 [VGA_STD] = {
1966 .opt_name = "std",
1967 .name = "standard VGA",
1968 .class_names = { "VGA", "isa-vga" },
1969 },
1970 [VGA_CIRRUS] = {
1971 .opt_name = "cirrus",
1972 .name = "Cirrus VGA",
1973 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
1974 },
1975 [VGA_VMWARE] = {
1976 .opt_name = "vmware",
1977 .name = "VMWare SVGA",
1978 .class_names = { "vmware-svga" },
1979 },
1980 [VGA_VIRTIO] = {
1981 .opt_name = "virtio",
1982 .name = "Virtio VGA",
1983 .class_names = { "virtio-vga" },
1984 },
1985 [VGA_QXL] = {
1986 .opt_name = "qxl",
1987 .name = "QXL VGA",
1988 .class_names = { "qxl-vga" },
1989 },
1990 [VGA_TCX] = {
1991 .opt_name = "tcx",
1992 .name = "TCX framebuffer",
1993 .class_names = { "SUNW,tcx" },
1994 },
1995 [VGA_CG3] = {
1996 .opt_name = "cg3",
1997 .name = "CG3 framebuffer",
1998 .class_names = { "cgthree" },
1999 },
2000 [VGA_XENFB] = {
2001 .opt_name = "xenfb",
2002 },
2003 };
2004
2005 static bool vga_interface_available(VGAInterfaceType t)
2006 {
2007 VGAInterfaceInfo *ti = &vga_interfaces[t];
2008
2009 assert(t < VGA_TYPE_MAX);
2010 return !ti->class_names[0] ||
2011 object_class_by_name(ti->class_names[0]) ||
2012 object_class_by_name(ti->class_names[1]);
2013 }
2014
2015 static void select_vgahw(const char *p)
2016 {
2017 const char *opts;
2018 int t;
2019
2020 assert(vga_interface_type == VGA_NONE);
2021 for (t = 0; t < VGA_TYPE_MAX; t++) {
2022 VGAInterfaceInfo *ti = &vga_interfaces[t];
2023 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
2024 if (!vga_interface_available(t)) {
2025 error_report("%s not available", ti->name);
2026 exit(1);
2027 }
2028 vga_interface_type = t;
2029 break;
2030 }
2031 }
2032 if (t == VGA_TYPE_MAX) {
2033 invalid_vga:
2034 error_report("unknown vga type: %s", p);
2035 exit(1);
2036 }
2037 while (*opts) {
2038 const char *nextopt;
2039
2040 if (strstart(opts, ",retrace=", &nextopt)) {
2041 opts = nextopt;
2042 if (strstart(opts, "dumb", &nextopt))
2043 vga_retrace_method = VGA_RETRACE_DUMB;
2044 else if (strstart(opts, "precise", &nextopt))
2045 vga_retrace_method = VGA_RETRACE_PRECISE;
2046 else goto invalid_vga;
2047 } else goto invalid_vga;
2048 opts = nextopt;
2049 }
2050 }
2051
2052 static void parse_display_qapi(const char *optarg)
2053 {
2054 DisplayOptions *opts;
2055 Visitor *v;
2056
2057 v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
2058
2059 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
2060 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
2061
2062 qapi_free_DisplayOptions(opts);
2063 visit_free(v);
2064 }
2065
2066 DisplayOptions *qmp_query_display_options(Error **errp)
2067 {
2068 return QAPI_CLONE(DisplayOptions, &dpy);
2069 }
2070
2071 static void parse_display(const char *p)
2072 {
2073 const char *opts;
2074
2075 if (strstart(p, "sdl", &opts)) {
2076 /*
2077 * sdl DisplayType needs hand-crafted parser instead of
2078 * parse_display_qapi() due to some options not in
2079 * DisplayOptions, specifically:
2080 * - frame
2081 * Already deprecated.
2082 * - ctrl_grab + alt_grab
2083 * Not clear yet what happens to them long-term. Should
2084 * replaced by something better or deprecated and dropped.
2085 */
2086 dpy.type = DISPLAY_TYPE_SDL;
2087 while (*opts) {
2088 const char *nextopt;
2089
2090 if (strstart(opts, ",frame=", &nextopt)) {
2091 g_printerr("The frame= sdl option is deprecated, and will be\n"
2092 "removed in a future release.\n");
2093 opts = nextopt;
2094 if (strstart(opts, "on", &nextopt)) {
2095 no_frame = 0;
2096 } else if (strstart(opts, "off", &nextopt)) {
2097 no_frame = 1;
2098 } else {
2099 goto invalid_sdl_args;
2100 }
2101 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2102 opts = nextopt;
2103 if (strstart(opts, "on", &nextopt)) {
2104 alt_grab = 1;
2105 } else if (strstart(opts, "off", &nextopt)) {
2106 alt_grab = 0;
2107 } else {
2108 goto invalid_sdl_args;
2109 }
2110 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2111 opts = nextopt;
2112 if (strstart(opts, "on", &nextopt)) {
2113 ctrl_grab = 1;
2114 } else if (strstart(opts, "off", &nextopt)) {
2115 ctrl_grab = 0;
2116 } else {
2117 goto invalid_sdl_args;
2118 }
2119 } else if (strstart(opts, ",window_close=", &nextopt)) {
2120 opts = nextopt;
2121 dpy.has_window_close = true;
2122 if (strstart(opts, "on", &nextopt)) {
2123 dpy.window_close = true;
2124 } else if (strstart(opts, "off", &nextopt)) {
2125 dpy.window_close = false;
2126 } else {
2127 goto invalid_sdl_args;
2128 }
2129 } else if (strstart(opts, ",gl=", &nextopt)) {
2130 opts = nextopt;
2131 dpy.has_gl = true;
2132 if (strstart(opts, "on", &nextopt)) {
2133 dpy.gl = DISPLAYGL_MODE_ON;
2134 } else if (strstart(opts, "core", &nextopt)) {
2135 dpy.gl = DISPLAYGL_MODE_CORE;
2136 } else if (strstart(opts, "es", &nextopt)) {
2137 dpy.gl = DISPLAYGL_MODE_ES;
2138 } else if (strstart(opts, "off", &nextopt)) {
2139 dpy.gl = DISPLAYGL_MODE_OFF;
2140 } else {
2141 goto invalid_sdl_args;
2142 }
2143 } else {
2144 invalid_sdl_args:
2145 error_report("invalid SDL option string");
2146 exit(1);
2147 }
2148 opts = nextopt;
2149 }
2150 } else if (strstart(p, "vnc", &opts)) {
2151 /*
2152 * vnc isn't a (local) DisplayType but a protocol for remote
2153 * display access.
2154 */
2155 if (*opts == '=') {
2156 vnc_parse(opts + 1, &error_fatal);
2157 } else {
2158 error_report("VNC requires a display argument vnc=<display>");
2159 exit(1);
2160 }
2161 } else {
2162 parse_display_qapi(p);
2163 }
2164 }
2165
2166 char *qemu_find_file(int type, const char *name)
2167 {
2168 int i;
2169 const char *subdir;
2170 char *buf;
2171
2172 /* Try the name as a straight path first */
2173 if (access(name, R_OK) == 0) {
2174 trace_load_file(name, name);
2175 return g_strdup(name);
2176 }
2177
2178 switch (type) {
2179 case QEMU_FILE_TYPE_BIOS:
2180 subdir = "";
2181 break;
2182 case QEMU_FILE_TYPE_KEYMAP:
2183 subdir = "keymaps/";
2184 break;
2185 default:
2186 abort();
2187 }
2188
2189 for (i = 0; i < data_dir_idx; i++) {
2190 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2191 if (access(buf, R_OK) == 0) {
2192 trace_load_file(name, buf);
2193 return buf;
2194 }
2195 g_free(buf);
2196 }
2197 return NULL;
2198 }
2199
2200 static void qemu_add_data_dir(const char *path)
2201 {
2202 int i;
2203
2204 if (path == NULL) {
2205 return;
2206 }
2207 if (data_dir_idx == ARRAY_SIZE(data_dir)) {
2208 return;
2209 }
2210 for (i = 0; i < data_dir_idx; i++) {
2211 if (strcmp(data_dir[i], path) == 0) {
2212 return; /* duplicate */
2213 }
2214 }
2215 data_dir[data_dir_idx++] = g_strdup(path);
2216 }
2217
2218 static inline bool nonempty_str(const char *str)
2219 {
2220 return str && *str;
2221 }
2222
2223 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
2224 {
2225 gchar *buf;
2226 size_t size;
2227 const char *name, *file, *str;
2228 FWCfgState *fw_cfg = (FWCfgState *) opaque;
2229
2230 if (fw_cfg == NULL) {
2231 error_setg(errp, "fw_cfg device not available");
2232 return -1;
2233 }
2234 name = qemu_opt_get(opts, "name");
2235 file = qemu_opt_get(opts, "file");
2236 str = qemu_opt_get(opts, "string");
2237
2238 /* we need name and either a file or the content string */
2239 if (!(nonempty_str(name) && (nonempty_str(file) || nonempty_str(str)))) {
2240 error_setg(errp, "invalid argument(s)");
2241 return -1;
2242 }
2243 if (nonempty_str(file) && nonempty_str(str)) {
2244 error_setg(errp, "file and string are mutually exclusive");
2245 return -1;
2246 }
2247 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
2248 error_setg(errp, "name too long (max. %d char)",
2249 FW_CFG_MAX_FILE_PATH - 1);
2250 return -1;
2251 }
2252 if (strncmp(name, "opt/", 4) != 0) {
2253 warn_report("externally provided fw_cfg item names "
2254 "should be prefixed with \"opt/\"");
2255 }
2256 if (nonempty_str(str)) {
2257 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
2258 buf = g_memdup(str, size);
2259 } else {
2260 GError *err = NULL;
2261 if (!g_file_get_contents(file, &buf, &size, &err)) {
2262 error_setg(errp, "can't load %s: %s", file, err->message);
2263 g_error_free(err);
2264 return -1;
2265 }
2266 }
2267 /* For legacy, keep user files in a specific global order. */
2268 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
2269 fw_cfg_add_file(fw_cfg, name, buf, size);
2270 fw_cfg_reset_order_override(fw_cfg);
2271 return 0;
2272 }
2273
2274 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
2275 {
2276 return qdev_device_help(opts);
2277 }
2278
2279 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
2280 {
2281 DeviceState *dev;
2282
2283 dev = qdev_device_add(opts, errp);
2284 if (!dev) {
2285 return -1;
2286 }
2287 object_unref(OBJECT(dev));
2288 return 0;
2289 }
2290
2291 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2292 {
2293 Error *local_err = NULL;
2294
2295 if (!qemu_chr_new_from_opts(opts, &local_err)) {
2296 if (local_err) {
2297 error_propagate(errp, local_err);
2298 return -1;
2299 }
2300 exit(0);
2301 }
2302 return 0;
2303 }
2304
2305 #ifdef CONFIG_VIRTFS
2306 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
2307 {
2308 return qemu_fsdev_add(opts, errp);
2309 }
2310 #endif
2311
2312 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
2313 {
2314 Chardev *chr;
2315 const char *chardev;
2316 const char *mode;
2317 int flags;
2318
2319 mode = qemu_opt_get(opts, "mode");
2320 if (mode == NULL) {
2321 mode = "readline";
2322 }
2323 if (strcmp(mode, "readline") == 0) {
2324 flags = MONITOR_USE_READLINE;
2325 } else if (strcmp(mode, "control") == 0) {
2326 flags = MONITOR_USE_CONTROL;
2327 } else {
2328 error_setg(errp, "unknown monitor mode \"%s\"", mode);
2329 return -1;
2330 }
2331
2332 if (qemu_opt_get_bool(opts, "pretty", 0))
2333 flags |= MONITOR_USE_PRETTY;
2334
2335 /* OOB is off by default */
2336 if (qemu_opt_get_bool(opts, "x-oob", 0)) {
2337 flags |= MONITOR_USE_OOB;
2338 }
2339
2340 chardev = qemu_opt_get(opts, "chardev");
2341 if (!chardev) {
2342 error_report("chardev is required");
2343 exit(1);
2344 }
2345 chr = qemu_chr_find(chardev);
2346 if (chr == NULL) {
2347 error_setg(errp, "chardev \"%s\" not found", chardev);
2348 return -1;
2349 }
2350
2351 monitor_init(chr, flags);
2352 return 0;
2353 }
2354
2355 static void monitor_parse(const char *optarg, const char *mode, bool pretty)
2356 {
2357 static int monitor_device_index = 0;
2358 QemuOpts *opts;
2359 const char *p;
2360 char label[32];
2361
2362 if (strstart(optarg, "chardev:", &p)) {
2363 snprintf(label, sizeof(label), "%s", p);
2364 } else {
2365 snprintf(label, sizeof(label), "compat_monitor%d",
2366 monitor_device_index);
2367 opts = qemu_chr_parse_compat(label, optarg, true);
2368 if (!opts) {
2369 error_report("parse error: %s", optarg);
2370 exit(1);
2371 }
2372 }
2373
2374 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
2375 qemu_opt_set(opts, "mode", mode, &error_abort);
2376 qemu_opt_set(opts, "chardev", label, &error_abort);
2377 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
2378 monitor_device_index++;
2379 }
2380
2381 struct device_config {
2382 enum {
2383 DEV_USB, /* -usbdevice */
2384 DEV_BT, /* -bt */
2385 DEV_SERIAL, /* -serial */
2386 DEV_PARALLEL, /* -parallel */
2387 DEV_VIRTCON, /* -virtioconsole */
2388 DEV_DEBUGCON, /* -debugcon */
2389 DEV_GDB, /* -gdb, -s */
2390 DEV_SCLP, /* s390 sclp */
2391 } type;
2392 const char *cmdline;
2393 Location loc;
2394 QTAILQ_ENTRY(device_config) next;
2395 };
2396
2397 static QTAILQ_HEAD(, device_config) device_configs =
2398 QTAILQ_HEAD_INITIALIZER(device_configs);
2399
2400 static void add_device_config(int type, const char *cmdline)
2401 {
2402 struct device_config *conf;
2403
2404 conf = g_malloc0(sizeof(*conf));
2405 conf->type = type;
2406 conf->cmdline = cmdline;
2407 loc_save(&conf->loc);
2408 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2409 }
2410
2411 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2412 {
2413 struct device_config *conf;
2414 int rc;
2415
2416 QTAILQ_FOREACH(conf, &device_configs, next) {
2417 if (conf->type != type)
2418 continue;
2419 loc_push_restore(&conf->loc);
2420 rc = func(conf->cmdline);
2421 loc_pop(&conf->loc);
2422 if (rc) {
2423 return rc;
2424 }
2425 }
2426 return 0;
2427 }
2428
2429 static int serial_parse(const char *devname)
2430 {
2431 int index = num_serial_hds;
2432 char label[32];
2433
2434 if (strcmp(devname, "none") == 0)
2435 return 0;
2436 snprintf(label, sizeof(label), "serial%d", index);
2437 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
2438
2439 serial_hds[index] = qemu_chr_new_mux_mon(label, devname);
2440 if (!serial_hds[index]) {
2441 error_report("could not connect serial device"
2442 " to character backend '%s'", devname);
2443 return -1;
2444 }
2445 num_serial_hds++;
2446 return 0;
2447 }
2448
2449 Chardev *serial_hd(int i)
2450 {
2451 assert(i >= 0);
2452 if (i < num_serial_hds) {
2453 return serial_hds[i];
2454 }
2455 return NULL;
2456 }
2457
2458 int serial_max_hds(void)
2459 {
2460 return num_serial_hds;
2461 }
2462
2463 static int parallel_parse(const char *devname)
2464 {
2465 static int index = 0;
2466 char label[32];
2467
2468 if (strcmp(devname, "none") == 0)
2469 return 0;
2470 if (index == MAX_PARALLEL_PORTS) {
2471 error_report("too many parallel ports");
2472 exit(1);
2473 }
2474 snprintf(label, sizeof(label), "parallel%d", index);
2475 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname);
2476 if (!parallel_hds[index]) {
2477 error_report("could not connect parallel device"
2478 " to character backend '%s'", devname);
2479 return -1;
2480 }
2481 index++;
2482 return 0;
2483 }
2484
2485 static int virtcon_parse(const char *devname)
2486 {
2487 QemuOptsList *device = qemu_find_opts("device");
2488 static int index = 0;
2489 char label[32];
2490 QemuOpts *bus_opts, *dev_opts;
2491
2492 if (strcmp(devname, "none") == 0)
2493 return 0;
2494 if (index == MAX_VIRTIO_CONSOLES) {
2495 error_report("too many virtio consoles");
2496 exit(1);
2497 }
2498
2499 bus_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2500 qemu_opt_set(bus_opts, "driver", "virtio-serial", &error_abort);
2501
2502 dev_opts = qemu_opts_create(device, NULL, 0, &error_abort);
2503 qemu_opt_set(dev_opts, "driver", "virtconsole", &error_abort);
2504
2505 snprintf(label, sizeof(label), "virtcon%d", index);
2506 virtcon_hds[index] = qemu_chr_new_mux_mon(label, devname);
2507 if (!virtcon_hds[index]) {
2508 error_report("could not connect virtio console"
2509 " to character backend '%s'", devname);
2510 return -1;
2511 }
2512 qemu_opt_set(dev_opts, "chardev", label, &error_abort);
2513
2514 index++;
2515 return 0;
2516 }
2517
2518 static int debugcon_parse(const char *devname)
2519 {
2520 QemuOpts *opts;
2521
2522 if (!qemu_chr_new_mux_mon("debugcon", devname)) {
2523 error_report("invalid character backend '%s'", devname);
2524 exit(1);
2525 }
2526 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2527 if (!opts) {
2528 error_report("already have a debugcon device");
2529 exit(1);
2530 }
2531 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
2532 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
2533 return 0;
2534 }
2535
2536 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
2537 {
2538 const MachineClass *mc1 = a, *mc2 = b;
2539 int res;
2540
2541 if (mc1->family == NULL) {
2542 if (mc2->family == NULL) {
2543 /* Compare standalone machine types against each other; they sort
2544 * in increasing order.
2545 */
2546 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
2547 object_class_get_name(OBJECT_CLASS(mc2)));
2548 }
2549
2550 /* Standalone machine types sort after families. */
2551 return 1;
2552 }
2553
2554 if (mc2->family == NULL) {
2555 /* Families sort before standalone machine types. */
2556 return -1;
2557 }
2558
2559 /* Families sort between each other alphabetically increasingly. */
2560 res = strcmp(mc1->family, mc2->family);
2561 if (res != 0) {
2562 return res;
2563 }
2564
2565 /* Within the same family, machine types sort in decreasing order. */
2566 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
2567 object_class_get_name(OBJECT_CLASS(mc1)));
2568 }
2569
2570 static MachineClass *machine_parse(const char *name)
2571 {
2572 MachineClass *mc = NULL;
2573 GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
2574
2575 if (name) {
2576 mc = find_machine(name);
2577 }
2578 if (mc) {
2579 g_slist_free(machines);
2580 return mc;
2581 }
2582 if (name && !is_help_option(name)) {
2583 error_report("unsupported machine type");
2584 error_printf("Use -machine help to list supported machines\n");
2585 } else {
2586 printf("Supported machines are:\n");
2587 machines = g_slist_sort(machines, machine_class_cmp);
2588 for (el = machines; el; el = el->next) {
2589 MachineClass *mc = el->data;
2590 if (mc->alias) {
2591 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
2592 }
2593 printf("%-20s %s%s%s\n", mc->name, mc->desc,
2594 mc->is_default ? " (default)" : "",
2595 mc->deprecation_reason ? " (deprecated)" : "");
2596 }
2597 }
2598
2599 g_slist_free(machines);
2600 exit(!name || !is_help_option(name));
2601 }
2602
2603 void qemu_add_exit_notifier(Notifier *notify)
2604 {
2605 notifier_list_add(&exit_notifiers, notify);
2606 }
2607
2608 void qemu_remove_exit_notifier(Notifier *notify)
2609 {
2610 notifier_remove(notify);
2611 }
2612
2613 static void qemu_run_exit_notifiers(void)
2614 {
2615 notifier_list_notify(&exit_notifiers, NULL);
2616 }
2617
2618 static const char *pid_file;
2619 static Notifier qemu_unlink_pidfile_notifier;
2620
2621 static void qemu_unlink_pidfile(Notifier *n, void *data)
2622 {
2623 if (pid_file) {
2624 unlink(pid_file);
2625 }
2626 }
2627
2628 bool machine_init_done;
2629
2630 void qemu_add_machine_init_done_notifier(Notifier *notify)
2631 {
2632 notifier_list_add(&machine_init_done_notifiers, notify);
2633 if (machine_init_done) {
2634 notify->notify(notify, NULL);
2635 }
2636 }
2637
2638 void qemu_remove_machine_init_done_notifier(Notifier *notify)
2639 {
2640 notifier_remove(notify);
2641 }
2642
2643 static void qemu_run_machine_init_done_notifiers(void)
2644 {
2645 machine_init_done = true;
2646 notifier_list_notify(&machine_init_done_notifiers, NULL);
2647 }
2648
2649 static const QEMUOption *lookup_opt(int argc, char **argv,
2650 const char **poptarg, int *poptind)
2651 {
2652 const QEMUOption *popt;
2653 int optind = *poptind;
2654 char *r = argv[optind];
2655 const char *optarg;
2656
2657 loc_set_cmdline(argv, optind, 1);
2658 optind++;
2659 /* Treat --foo the same as -foo. */
2660 if (r[1] == '-')
2661 r++;
2662 popt = qemu_options;
2663 for(;;) {
2664 if (!popt->name) {
2665 error_report("invalid option");
2666 exit(1);
2667 }
2668 if (!strcmp(popt->name, r + 1))
2669 break;
2670 popt++;
2671 }
2672 if (popt->flags & HAS_ARG) {
2673 if (optind >= argc) {
2674 error_report("requires an argument");
2675 exit(1);
2676 }
2677 optarg = argv[optind++];
2678 loc_set_cmdline(argv, optind - 2, 2);
2679 } else {
2680 optarg = NULL;
2681 }
2682
2683 *poptarg = optarg;
2684 *poptind = optind;
2685
2686 return popt;
2687 }
2688
2689 static MachineClass *select_machine(void)
2690 {
2691 MachineClass *machine_class = find_default_machine();
2692 const char *optarg;
2693 QemuOpts *opts;
2694 Location loc;
2695
2696 loc_push_none(&loc);
2697
2698 opts = qemu_get_machine_opts();
2699 qemu_opts_loc_restore(opts);
2700
2701 optarg = qemu_opt_get(opts, "type");
2702 if (optarg) {
2703 machine_class = machine_parse(optarg);
2704 }
2705
2706 if (!machine_class) {
2707 error_report("No machine specified, and there is no default");
2708 error_printf("Use -machine help to list supported machines\n");
2709 exit(1);
2710 }
2711
2712 loc_pop(&loc);
2713 return machine_class;
2714 }
2715
2716 static int machine_set_property(void *opaque,
2717 const char *name, const char *value,
2718 Error **errp)
2719 {
2720 Object *obj = OBJECT(opaque);
2721 Error *local_err = NULL;
2722 char *p, *qom_name;
2723
2724 if (strcmp(name, "type") == 0) {
2725 return 0;
2726 }
2727
2728 qom_name = g_strdup(name);
2729 for (p = qom_name; *p; p++) {
2730 if (*p == '_') {
2731 *p = '-';
2732 }
2733 }
2734
2735 object_property_parse(obj, value, qom_name, &local_err);
2736 g_free(qom_name);
2737
2738 if (local_err) {
2739 error_propagate(errp, local_err);
2740 return -1;
2741 }
2742
2743 return 0;
2744 }
2745
2746
2747 /*
2748 * Initial object creation happens before all other
2749 * QEMU data types are created. The majority of objects
2750 * can be created at this point. The rng-egd object
2751 * cannot be created here, as it depends on the chardev
2752 * already existing.
2753 */
2754 static bool object_create_initial(const char *type, QemuOpts *opts)
2755 {
2756 ObjectClass *klass;
2757
2758 if (is_help_option(type)) {
2759 GSList *l, *list;
2760
2761 printf("List of user creatable objects:\n");
2762 list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
2763 for (l = list; l != NULL; l = l->next) {
2764 ObjectClass *oc = OBJECT_CLASS(l->data);
2765 printf(" %s\n", object_class_get_name(oc));
2766 }
2767 g_slist_free(list);
2768 exit(0);
2769 }
2770
2771 klass = object_class_by_name(type);
2772 if (klass && qemu_opt_has_help_opt(opts)) {
2773 ObjectPropertyIterator iter;
2774 ObjectProperty *prop;
2775 GPtrArray *array = g_ptr_array_new();
2776 int i;
2777
2778 object_class_property_iter_init(&iter, klass);
2779 while ((prop = object_property_iter_next(&iter))) {
2780 GString *str;
2781
2782 if (!prop->set) {
2783 continue;
2784 }
2785
2786 str = g_string_new(NULL);
2787 g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
2788 if (prop->description) {
2789 if (str->len < 24) {
2790 g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
2791 }
2792 g_string_append_printf(str, " - %s", prop->description);
2793 }
2794 g_ptr_array_add(array, g_string_free(str, false));
2795 }
2796 g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
2797 if (array->len > 0) {
2798 printf("%s options:\n", type);
2799 } else {
2800 printf("There are no options for %s.\n", type);
2801 }
2802 for (i = 0; i < array->len; i++) {
2803 printf("%s\n", (char *)array->pdata[i]);
2804 }
2805 g_ptr_array_set_free_func(array, g_free);
2806 g_ptr_array_free(array, true);
2807 exit(0);
2808 }
2809
2810 if (g_str_equal(type, "rng-egd") ||
2811 g_str_has_prefix(type, "pr-manager-")) {
2812 return false;
2813 }
2814
2815 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2816 if (g_str_equal(type, "cryptodev-vhost-user")) {
2817 return false;
2818 }
2819 #endif
2820
2821 /*
2822 * return false for concrete netfilters since
2823 * they depend on netdevs already existing
2824 */
2825 if (g_str_equal(type, "filter-buffer") ||
2826 g_str_equal(type, "filter-dump") ||
2827 g_str_equal(type, "filter-mirror") ||
2828 g_str_equal(type, "filter-redirector") ||
2829 g_str_equal(type, "colo-compare") ||
2830 g_str_equal(type, "filter-rewriter") ||
2831 g_str_equal(type, "filter-replay")) {
2832 return false;
2833 }
2834
2835 /* Memory allocation by backends needs to be done
2836 * after configure_accelerator() (due to the tcg_enabled()
2837 * checks at memory_region_init_*()).
2838 *
2839 * Also, allocation of large amounts of memory may delay
2840 * chardev initialization for too long, and trigger timeouts
2841 * on software that waits for a monitor socket to be created
2842 * (e.g. libvirt).
2843 */
2844 if (g_str_has_prefix(type, "memory-backend-")) {
2845 return false;
2846 }
2847
2848 return true;
2849 }
2850
2851
2852 /*
2853 * The remainder of object creation happens after the
2854 * creation of chardev, fsdev, net clients and device data types.
2855 */
2856 static bool object_create_delayed(const char *type, QemuOpts *opts)
2857 {
2858 return !object_create_initial(type, opts);
2859 }
2860
2861
2862 static void set_memory_options(uint64_t *ram_slots, ram_addr_t *maxram_size,
2863 MachineClass *mc)
2864 {
2865 uint64_t sz;
2866 const char *mem_str;
2867 const ram_addr_t default_ram_size = mc->default_ram_size;
2868 QemuOpts *opts = qemu_find_opts_singleton("memory");
2869 Location loc;
2870
2871 loc_push_none(&loc);
2872 qemu_opts_loc_restore(opts);
2873
2874 sz = 0;
2875 mem_str = qemu_opt_get(opts, "size");
2876 if (mem_str) {
2877 if (!*mem_str) {
2878 error_report("missing 'size' option value");
2879 exit(EXIT_FAILURE);
2880 }
2881
2882 sz = qemu_opt_get_size(opts, "size", ram_size);
2883
2884 /* Fix up legacy suffix-less format */
2885 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2886 uint64_t overflow_check = sz;
2887
2888 sz *= MiB;
2889 if (sz / MiB != overflow_check) {
2890 error_report("too large 'size' option value");
2891 exit(EXIT_FAILURE);
2892 }
2893 }
2894 }
2895
2896 /* backward compatibility behaviour for case "-m 0" */
2897 if (sz == 0) {
2898 sz = default_ram_size;
2899 }
2900
2901 sz = QEMU_ALIGN_UP(sz, 8192);
2902 ram_size = sz;
2903 if (ram_size != sz) {
2904 error_report("ram size too large");
2905 exit(EXIT_FAILURE);
2906 }
2907
2908 /* store value for the future use */
2909 qemu_opt_set_number(opts, "size", ram_size, &error_abort);
2910 *maxram_size = ram_size;
2911
2912 if (qemu_opt_get(opts, "maxmem")) {
2913 uint64_t slots;
2914
2915 sz = qemu_opt_get_size(opts, "maxmem", 0);
2916 slots = qemu_opt_get_number(opts, "slots", 0);
2917 if (sz < ram_size) {
2918 error_report("invalid value of -m option maxmem: "
2919 "maximum memory size (0x%" PRIx64 ") must be at least "
2920 "the initial memory size (0x" RAM_ADDR_FMT ")",
2921 sz, ram_size);
2922 exit(EXIT_FAILURE);
2923 } else if (slots && sz == ram_size) {
2924 error_report("invalid value of -m option maxmem: "
2925 "memory slots were specified but maximum memory size "
2926 "(0x%" PRIx64 ") is equal to the initial memory size "
2927 "(0x" RAM_ADDR_FMT ")", sz, ram_size);
2928 exit(EXIT_FAILURE);
2929 }
2930
2931 *maxram_size = sz;
2932 *ram_slots = slots;
2933 } else if (qemu_opt_get(opts, "slots")) {
2934 error_report("invalid -m option value: missing 'maxmem' option");
2935 exit(EXIT_FAILURE);
2936 }
2937
2938 loc_pop(&loc);
2939 }
2940
2941 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2942 {
2943 GlobalProperty *g;
2944
2945 g = g_malloc0(sizeof(*g));
2946 g->driver = qemu_opt_get(opts, "driver");
2947 g->property = qemu_opt_get(opts, "property");
2948 g->value = qemu_opt_get(opts, "value");
2949 g->user_provided = true;
2950 g->errp = &error_fatal;
2951 qdev_prop_register_global(g);
2952 return 0;
2953 }
2954
2955 static int qemu_read_default_config_file(void)
2956 {
2957 int ret;
2958
2959 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2960 if (ret < 0 && ret != -ENOENT) {
2961 return ret;
2962 }
2963
2964 return 0;
2965 }
2966
2967 static void user_register_global_props(void)
2968 {
2969 qemu_opts_foreach(qemu_find_opts("global"),
2970 global_init_func, NULL, NULL);
2971 }
2972
2973 /*
2974 * Note: we should see that these properties are actually having a
2975 * priority: accel < machine < user. This means e.g. when user
2976 * specifies something in "-global", it'll always be used with highest
2977 * priority than either machine/accelerator compat properties.
2978 */
2979 static void register_global_properties(MachineState *ms)
2980 {
2981 accel_register_compat_props(ms->accelerator);
2982 machine_register_compat_props(ms);
2983 user_register_global_props();
2984 }
2985
2986 int main(int argc, char **argv)
2987 {
2988 int i;
2989 int snapshot, linux_boot;
2990 const char *initrd_filename;
2991 const char *kernel_filename, *kernel_cmdline;
2992 const char *boot_order = NULL;
2993 const char *boot_once = NULL;
2994 DisplayState *ds;
2995 QemuOpts *opts, *machine_opts;
2996 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2997 QemuOptsList *olist;
2998 int optind;
2999 const char *optarg;
3000 const char *loadvm = NULL;
3001 MachineClass *machine_class;
3002 const char *cpu_model;
3003 const char *vga_model = NULL;
3004 const char *qtest_chrdev = NULL;
3005 const char *qtest_log = NULL;
3006 const char *incoming = NULL;
3007 bool userconfig = true;
3008 bool nographic = false;
3009 int display_remote = 0;
3010 const char *log_mask = NULL;
3011 const char *log_file = NULL;
3012 char *trace_file = NULL;
3013 ram_addr_t maxram_size;
3014 uint64_t ram_slots = 0;
3015 FILE *vmstate_dump_file = NULL;
3016 Error *main_loop_err = NULL;
3017 Error *err = NULL;
3018 bool list_data_dirs = false;
3019 char *dir, **dirs;
3020 typedef struct BlockdevOptions_queue {
3021 BlockdevOptions *bdo;
3022 Location loc;
3023 QSIMPLEQ_ENTRY(BlockdevOptions_queue) entry;
3024 } BlockdevOptions_queue;
3025 QSIMPLEQ_HEAD(, BlockdevOptions_queue) bdo_queue
3026 = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
3027
3028 module_call_init(MODULE_INIT_TRACE);
3029
3030 qemu_init_cpu_list();
3031 qemu_init_cpu_loop();
3032
3033 qemu_mutex_lock_iothread();
3034
3035 atexit(qemu_run_exit_notifiers);
3036 error_set_progname(argv[0]);
3037 qemu_init_exec_dir(argv[0]);
3038
3039 module_call_init(MODULE_INIT_QOM);
3040
3041 qemu_add_opts(&qemu_drive_opts);
3042 qemu_add_drive_opts(&qemu_legacy_drive_opts);
3043 qemu_add_drive_opts(&qemu_common_drive_opts);
3044 qemu_add_drive_opts(&qemu_drive_opts);
3045 qemu_add_drive_opts(&bdrv_runtime_opts);
3046 qemu_add_opts(&qemu_chardev_opts);
3047 qemu_add_opts(&qemu_device_opts);
3048 qemu_add_opts(&qemu_netdev_opts);
3049 qemu_add_opts(&qemu_nic_opts);
3050 qemu_add_opts(&qemu_net_opts);
3051 qemu_add_opts(&qemu_rtc_opts);
3052 qemu_add_opts(&qemu_global_opts);
3053 qemu_add_opts(&qemu_mon_opts);
3054 qemu_add_opts(&qemu_trace_opts);
3055 qemu_add_opts(&qemu_option_rom_opts);
3056 qemu_add_opts(&qemu_machine_opts);
3057 qemu_add_opts(&qemu_accel_opts);
3058 qemu_add_opts(&qemu_mem_opts);
3059 qemu_add_opts(&qemu_smp_opts);
3060 qemu_add_opts(&qemu_boot_opts);
3061 qemu_add_opts(&qemu_add_fd_opts);
3062 qemu_add_opts(&qemu_object_opts);
3063 qemu_add_opts(&qemu_tpmdev_opts);
3064 qemu_add_opts(&qemu_realtime_opts);
3065 qemu_add_opts(&qemu_overcommit_opts);
3066 qemu_add_opts(&qemu_msg_opts);
3067 qemu_add_opts(&qemu_name_opts);
3068 qemu_add_opts(&qemu_numa_opts);
3069 qemu_add_opts(&qemu_icount_opts);
3070 qemu_add_opts(&qemu_semihosting_config_opts);
3071 qemu_add_opts(&qemu_fw_cfg_opts);
3072 module_call_init(MODULE_INIT_OPTS);
3073
3074 runstate_init();
3075 postcopy_infrastructure_init();
3076 monitor_init_globals();
3077
3078 if (qcrypto_init(&err) < 0) {
3079 error_reportf_err(err, "cannot initialize crypto: ");
3080 exit(1);
3081 }
3082
3083 QLIST_INIT (&vm_change_state_head);
3084 os_setup_early_signal_handling();
3085
3086 cpu_model = NULL;
3087 snapshot = 0;
3088
3089 nb_nics = 0;
3090
3091 bdrv_init_with_whitelist();
3092
3093 autostart = 1;
3094
3095 /* first pass of option parsing */
3096 optind = 1;
3097 while (optind < argc) {
3098 if (argv[optind][0] != '-') {
3099 /* disk image */
3100 optind++;
3101 } else {
3102 const QEMUOption *popt;
3103
3104 popt = lookup_opt(argc, argv, &optarg, &optind);
3105 switch (popt->index) {
3106 case QEMU_OPTION_nouserconfig:
3107 userconfig = false;
3108 break;
3109 }
3110 }
3111 }
3112
3113 if (userconfig) {
3114 if (qemu_read_default_config_file() < 0) {
3115 exit(1);
3116 }
3117 }
3118
3119 /* second pass of option parsing */
3120 optind = 1;
3121 for(;;) {
3122 if (optind >= argc)
3123 break;
3124 if (argv[optind][0] != '-') {
3125 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
3126 } else {
3127 const QEMUOption *popt;
3128
3129 popt = lookup_opt(argc, argv, &optarg, &optind);
3130 if (!(popt->arch_mask & arch_type)) {
3131 error_report("Option not supported for this target");
3132 exit(1);
3133 }
3134 switch(popt->index) {
3135 case QEMU_OPTION_cpu:
3136 /* hw initialization will check this */
3137 cpu_model = optarg;
3138 break;
3139 case QEMU_OPTION_hda:
3140 case QEMU_OPTION_hdb:
3141 case QEMU_OPTION_hdc:
3142 case QEMU_OPTION_hdd:
3143 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
3144 HD_OPTS);
3145 break;
3146 case QEMU_OPTION_blockdev:
3147 {
3148 Visitor *v;
3149 BlockdevOptions_queue *bdo;
3150
3151 v = qobject_input_visitor_new_str(optarg, "driver", &err);
3152 if (!v) {
3153 error_report_err(err);
3154 exit(1);
3155 }
3156
3157 bdo = g_new(BlockdevOptions_queue, 1);
3158 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
3159 &error_fatal);
3160 visit_free(v);
3161 loc_save(&bdo->loc);
3162 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
3163 break;
3164 }
3165 case QEMU_OPTION_drive:
3166 if (drive_def(optarg) == NULL) {
3167 exit(1);
3168 }
3169 break;
3170 case QEMU_OPTION_set:
3171 if (qemu_set_option(optarg) != 0)
3172 exit(1);
3173 break;
3174 case QEMU_OPTION_global:
3175 if (qemu_global_option(optarg) != 0)
3176 exit(1);
3177 break;
3178 case QEMU_OPTION_mtdblock:
3179 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3180 break;
3181 case QEMU_OPTION_sd:
3182 drive_add(IF_SD, -1, optarg, SD_OPTS);
3183 break;
3184 case QEMU_OPTION_pflash:
3185 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3186 break;
3187 case QEMU_OPTION_snapshot:
3188 snapshot = 1;
3189 break;
3190 case QEMU_OPTION_numa:
3191 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
3192 optarg, true);
3193 if (!opts) {
3194 exit(1);
3195 }
3196 break;
3197 case QEMU_OPTION_display:
3198 parse_display(optarg);
3199 break;
3200 case QEMU_OPTION_nographic:
3201 olist = qemu_find_opts("machine");
3202 qemu_opts_parse_noisily(olist, "graphics=off", false);
3203 nographic = true;
3204 dpy.type = DISPLAY_TYPE_NONE;
3205 break;
3206 case QEMU_OPTION_curses:
3207 #ifdef CONFIG_CURSES
3208 dpy.type = DISPLAY_TYPE_CURSES;
3209 #else
3210 error_report("curses support is disabled");
3211 exit(1);
3212 #endif
3213 break;
3214 case QEMU_OPTION_portrait:
3215 graphic_rotate = 90;
3216 break;
3217 case QEMU_OPTION_rotate:
3218 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3219 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3220 graphic_rotate != 180 && graphic_rotate != 270) {
3221 error_report("only 90, 180, 270 deg rotation is available");
3222 exit(1);
3223 }
3224 break;
3225 case QEMU_OPTION_kernel:
3226 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg,
3227 &error_abort);
3228 break;
3229 case QEMU_OPTION_initrd:
3230 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg,
3231 &error_abort);
3232 break;
3233 case QEMU_OPTION_append:
3234 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg,
3235 &error_abort);
3236 break;
3237 case QEMU_OPTION_dtb:
3238 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg,
3239 &error_abort);
3240 break;
3241 case QEMU_OPTION_cdrom:
3242 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3243 break;
3244 case QEMU_OPTION_boot:
3245 opts = qemu_opts_parse_noisily(qemu_find_opts("boot-opts"),
3246 optarg, true);
3247 if (!opts) {
3248 exit(1);
3249 }
3250 break;
3251 case QEMU_OPTION_fda:
3252 case QEMU_OPTION_fdb:
3253 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3254 optarg, FD_OPTS);
3255 break;
3256 case QEMU_OPTION_no_fd_bootchk:
3257 fd_bootchk = 0;
3258 break;
3259 case QEMU_OPTION_netdev:
3260 default_net = 0;
3261 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3262 exit(1);
3263 }
3264 break;
3265 case QEMU_OPTION_nic:
3266 default_net = 0;
3267 if (net_client_parse(qemu_find_opts("nic"), optarg) == -1) {
3268 exit(1);
3269 }
3270 break;
3271 case QEMU_OPTION_net:
3272 default_net = 0;
3273 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3274 exit(1);
3275 }
3276 break;
3277 #ifdef CONFIG_LIBISCSI
3278 case QEMU_OPTION_iscsi:
3279 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
3280 optarg, false);
3281 if (!opts) {
3282 exit(1);
3283 }
3284 break;
3285 #endif
3286 case QEMU_OPTION_bt:
3287 warn_report("The bluetooth subsystem is deprecated and will "
3288 "be removed soon. If the bluetooth subsystem is "
3289 "still useful for you, please send a mail to "
3290 "qemu-devel@nongnu.org with your usecase.");
3291 add_device_config(DEV_BT, optarg);
3292 break;
3293 case QEMU_OPTION_audio_help:
3294 AUD_help ();
3295 exit (0);
3296 break;
3297 case QEMU_OPTION_soundhw:
3298 select_soundhw (optarg);
3299 break;
3300 case QEMU_OPTION_h:
3301 help(0);
3302 break;
3303 case QEMU_OPTION_version:
3304 version();
3305 exit(0);
3306 break;
3307 case QEMU_OPTION_m:
3308 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"),
3309 optarg, true);
3310 if (!opts) {
3311 exit(EXIT_FAILURE);
3312 }
3313 break;
3314 #ifdef CONFIG_TPM
3315 case QEMU_OPTION_tpmdev:
3316 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3317 exit(1);
3318 }
3319 break;
3320 #endif
3321 case QEMU_OPTION_mempath:
3322 mem_path = optarg;
3323 break;
3324 case QEMU_OPTION_mem_prealloc:
3325 mem_prealloc = 1;
3326 break;
3327 case QEMU_OPTION_d:
3328 log_mask = optarg;
3329 break;
3330 case QEMU_OPTION_D:
3331 log_file = optarg;
3332 break;
3333 case QEMU_OPTION_DFILTER:
3334 qemu_set_dfilter_ranges(optarg, &error_fatal);
3335 break;
3336 case QEMU_OPTION_s:
3337 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3338 break;
3339 case QEMU_OPTION_gdb:
3340 add_device_config(DEV_GDB, optarg);
3341 break;
3342 case QEMU_OPTION_L:
3343 if (is_help_option(optarg)) {
3344 list_data_dirs = true;
3345 } else {
3346 qemu_add_data_dir(optarg);
3347 }
3348 break;
3349 case QEMU_OPTION_bios:
3350 qemu_opts_set(qemu_find_opts("machine"), 0, "firmware", optarg,
3351 &error_abort);
3352 break;
3353 case QEMU_OPTION_singlestep:
3354 singlestep = 1;
3355 break;
3356 case QEMU_OPTION_S:
3357 autostart = 0;
3358 break;
3359 case QEMU_OPTION_k:
3360 keyboard_layout = optarg;
3361 break;
3362 case QEMU_OPTION_vga:
3363 vga_model = optarg;
3364 default_vga = 0;
3365 break;
3366 case QEMU_OPTION_g:
3367 {
3368 const char *p;
3369 int w, h, depth;
3370 p = optarg;
3371 w = strtol(p, (char **)&p, 10);
3372 if (w <= 0) {
3373 graphic_error:
3374 error_report("invalid resolution or depth");
3375 exit(1);
3376 }
3377 if (*p != 'x')
3378 goto graphic_error;
3379 p++;
3380 h = strtol(p, (char **)&p, 10);
3381 if (h <= 0)
3382 goto graphic_error;
3383 if (*p == 'x') {
3384 p++;
3385 depth = strtol(p, (char **)&p, 10);
3386 if (depth != 8 && depth != 15 && depth != 16 &&
3387 depth != 24 && depth != 32)
3388 goto graphic_error;
3389 } else if (*p == '\0') {
3390 depth = graphic_depth;
3391 } else {
3392 goto graphic_error;
3393 }
3394
3395 graphic_width = w;
3396 graphic_height = h;
3397 graphic_depth = depth;
3398 }
3399 break;
3400 case QEMU_OPTION_echr:
3401 {
3402 char *r;
3403 term_escape_char = strtol(optarg, &r, 0);
3404 if (r == optarg)
3405 printf("Bad argument to echr\n");
3406 break;
3407 }
3408 case QEMU_OPTION_monitor:
3409 default_monitor = 0;
3410 if (strncmp(optarg, "none", 4)) {
3411 monitor_parse(optarg, "readline", false);
3412 }
3413 break;
3414 case QEMU_OPTION_qmp:
3415 monitor_parse(optarg, "control", false);
3416 default_monitor = 0;
3417 break;
3418 case QEMU_OPTION_qmp_pretty:
3419 monitor_parse(optarg, "control", true);
3420 default_monitor = 0;
3421 break;
3422 case QEMU_OPTION_mon:
3423 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3424 true);
3425 if (!opts) {
3426 exit(1);
3427 }
3428 default_monitor = 0;
3429 break;
3430 case QEMU_OPTION_chardev:
3431 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3432 optarg, true);
3433 if (!opts) {
3434 exit(1);
3435 }
3436 break;
3437 case QEMU_OPTION_fsdev:
3438 olist = qemu_find_opts("fsdev");
3439 if (!olist) {
3440 error_report("fsdev support is disabled");
3441 exit(1);
3442 }
3443 opts = qemu_opts_parse_noisily(olist, optarg, true);
3444 if (!opts) {
3445 exit(1);
3446 }
3447 break;
3448 case QEMU_OPTION_virtfs: {
3449 QemuOpts *fsdev;
3450 QemuOpts *device;
3451 const char *writeout, *sock_fd, *socket, *path, *security_model;
3452
3453 olist = qemu_find_opts("virtfs");
3454 if (!olist) {
3455 error_report("virtfs support is disabled");
3456 exit(1);
3457 }
3458 opts = qemu_opts_parse_noisily(olist, optarg, true);
3459 if (!opts) {
3460 exit(1);
3461 }
3462
3463 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3464 qemu_opt_get(opts, "mount_tag") == NULL) {
3465 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3466 exit(1);
3467 }
3468 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3469 qemu_opts_id(opts) ?:
3470 qemu_opt_get(opts, "mount_tag"),
3471 1, NULL);
3472 if (!fsdev) {
3473 error_report("duplicate or invalid fsdev id: %s",
3474 qemu_opt_get(opts, "mount_tag"));
3475 exit(1);
3476 }
3477
3478 writeout = qemu_opt_get(opts, "writeout");
3479 if (writeout) {
3480 #ifdef CONFIG_SYNC_FILE_RANGE
3481 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3482 #else
3483 error_report("writeout=immediate not supported "
3484 "on this platform");
3485 exit(1);
3486 #endif
3487 }
3488 qemu_opt_set(fsdev, "fsdriver",
3489 qemu_opt_get(opts, "fsdriver"), &error_abort);
3490 path = qemu_opt_get(opts, "path");
3491 if (path) {
3492 qemu_opt_set(fsdev, "path", path, &error_abort);
3493 }
3494 security_model = qemu_opt_get(opts, "security_model");
3495 if (security_model) {
3496 qemu_opt_set(fsdev, "security_model", security_model,
3497 &error_abort);
3498 }
3499 socket = qemu_opt_get(opts, "socket");
3500 if (socket) {
3501 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3502 }
3503 sock_fd = qemu_opt_get(opts, "sock_fd");
3504 if (sock_fd) {
3505 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3506 }
3507
3508 qemu_opt_set_bool(fsdev, "readonly",
3509 qemu_opt_get_bool(opts, "readonly", 0),
3510 &error_abort);
3511 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3512 &error_abort);
3513 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3514 qemu_opt_set(device, "fsdev",
3515 qemu_opts_id(fsdev), &error_abort);
3516 qemu_opt_set(device, "mount_tag",
3517 qemu_opt_get(opts, "mount_tag"), &error_abort);
3518 break;
3519 }
3520 case QEMU_OPTION_virtfs_synth: {
3521 QemuOpts *fsdev;
3522 QemuOpts *device;
3523
3524 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3525 1, NULL);
3526 if (!fsdev) {
3527 error_report("duplicate option: %s", "virtfs_synth");
3528 exit(1);
3529 }
3530 qemu_opt_set(fsdev, "fsdriver", "synth", &error_abort);
3531
3532 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3533 &error_abort);
3534 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3535 qemu_opt_set(device, "fsdev", "v_synth", &error_abort);
3536 qemu_opt_set(device, "mount_tag", "v_synth", &error_abort);
3537 break;
3538 }
3539 case QEMU_OPTION_serial:
3540 add_device_config(DEV_SERIAL, optarg);
3541 default_serial = 0;
3542 if (strncmp(optarg, "mon:", 4) == 0) {
3543 default_monitor = 0;
3544 }
3545 break;
3546 case QEMU_OPTION_watchdog:
3547 if (watchdog) {
3548 error_report("only one watchdog option may be given");
3549 return 1;
3550 }
3551 watchdog = optarg;
3552 break;
3553 case QEMU_OPTION_watchdog_action:
3554 if (select_watchdog_action(optarg) == -1) {
3555 error_report("unknown -watchdog-action parameter");
3556 exit(1);
3557 }
3558 break;
3559 case QEMU_OPTION_virtiocon:
3560 warn_report("This option is deprecated, "
3561 "use '-device virtconsole' instead");
3562 add_device_config(DEV_VIRTCON, optarg);
3563 default_virtcon = 0;
3564 if (strncmp(optarg, "mon:", 4) == 0) {
3565 default_monitor = 0;
3566 }
3567 break;
3568 case QEMU_OPTION_parallel:
3569 add_device_config(DEV_PARALLEL, optarg);
3570 default_parallel = 0;
3571 if (strncmp(optarg, "mon:", 4) == 0) {
3572 default_monitor = 0;
3573 }
3574 break;
3575 case QEMU_OPTION_debugcon:
3576 add_device_config(DEV_DEBUGCON, optarg);
3577 break;
3578 case QEMU_OPTION_loadvm:
3579 loadvm = optarg;
3580 break;
3581 case QEMU_OPTION_full_screen:
3582 dpy.has_full_screen = true;
3583 dpy.full_screen = true;
3584 break;
3585 case QEMU_OPTION_no_frame:
3586 g_printerr("The -no-frame switch is deprecated, and will be\n"
3587 "removed in a future release.\n");
3588 no_frame = 1;
3589 break;
3590 case QEMU_OPTION_alt_grab:
3591 alt_grab = 1;
3592 break;
3593 case QEMU_OPTION_ctrl_grab:
3594 ctrl_grab = 1;
3595 break;
3596 case QEMU_OPTION_no_quit:
3597 dpy.has_window_close = true;
3598 dpy.window_close = false;
3599 break;
3600 case QEMU_OPTION_sdl:
3601 #ifdef CONFIG_SDL
3602 dpy.type = DISPLAY_TYPE_SDL;
3603 break;
3604 #else
3605 error_report("SDL support is disabled");
3606 exit(1);
3607 #endif
3608 case QEMU_OPTION_pidfile:
3609 pid_file = optarg;
3610 break;
3611 case QEMU_OPTION_win2k_hack:
3612 win2k_install_hack = 1;
3613 break;
3614 case QEMU_OPTION_acpitable:
3615 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3616 optarg, true);
3617 if (!opts) {
3618 exit(1);
3619 }
3620 acpi_table_add(opts, &error_fatal);
3621 break;
3622 case QEMU_OPTION_smbios:
3623 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3624 optarg, false);
3625 if (!opts) {
3626 exit(1);
3627 }
3628 smbios_entry_add(opts, &error_fatal);
3629 break;
3630 case QEMU_OPTION_fwcfg:
3631 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3632 optarg, true);
3633 if (opts == NULL) {
3634 exit(1);
3635 }
3636 break;
3637 case QEMU_OPTION_preconfig:
3638 preconfig_exit_requested = false;
3639 break;
3640 case QEMU_OPTION_enable_kvm:
3641 olist = qemu_find_opts("machine");
3642 qemu_opts_parse_noisily(olist, "accel=kvm", false);
3643 break;
3644 case QEMU_OPTION_enable_hax:
3645 warn_report("Option is deprecated, use '-accel hax' instead");
3646 olist = qemu_find_opts("machine");
3647 qemu_opts_parse_noisily(olist, "accel=hax", false);
3648 break;
3649 case QEMU_OPTION_M:
3650 case QEMU_OPTION_machine:
3651 olist = qemu_find_opts("machine");
3652 opts = qemu_opts_parse_noisily(olist, optarg, true);
3653 if (!opts) {
3654 exit(1);
3655 }
3656 break;
3657 case QEMU_OPTION_no_kvm:
3658 olist = qemu_find_opts("machine");
3659 qemu_opts_parse_noisily(olist, "accel=tcg", false);
3660 break;
3661 case QEMU_OPTION_accel:
3662 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3663 optarg, true);
3664 optarg = qemu_opt_get(accel_opts, "accel");
3665 if (!optarg || is_help_option(optarg)) {
3666 error_printf("Possible accelerators: kvm, xen, hax, tcg\n");
3667 exit(0);
3668 }
3669 opts = qemu_opts_create(qemu_find_opts("machine"), NULL,
3670 false, &error_abort);
3671 qemu_opt_set(opts, "accel", optarg, &error_abort);
3672 break;
3673 case QEMU_OPTION_usb:
3674 olist = qemu_find_opts("machine");
3675 qemu_opts_parse_noisily(olist, "usb=on", false);
3676 break;
3677 case QEMU_OPTION_usbdevice:
3678 error_report("'-usbdevice' is deprecated, please use "
3679 "'-device usb-...' instead");
3680 olist = qemu_find_opts("machine");
3681 qemu_opts_parse_noisily(olist, "usb=on", false);
3682 add_device_config(DEV_USB, optarg);
3683 break;
3684 case QEMU_OPTION_device:
3685 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3686 optarg, true)) {
3687 exit(1);
3688 }
3689 break;
3690 case QEMU_OPTION_smp:
3691 if (!qemu_opts_parse_noisily(qemu_find_opts("smp-opts"),
3692 optarg, true)) {
3693 exit(1);
3694 }
3695 break;
3696 case QEMU_OPTION_vnc:
3697 vnc_parse(optarg, &error_fatal);
3698 break;
3699 case QEMU_OPTION_no_acpi:
3700 acpi_enabled = 0;
3701 break;
3702 case QEMU_OPTION_no_hpet:
3703 no_hpet = 1;
3704 break;
3705 case QEMU_OPTION_no_reboot:
3706 no_reboot = 1;
3707 break;
3708 case QEMU_OPTION_no_shutdown:
3709 no_shutdown = 1;
3710 break;
3711 case QEMU_OPTION_show_cursor:
3712 cursor_hide = 0;
3713 break;
3714 case QEMU_OPTION_uuid:
3715 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3716 error_report("failed to parse UUID string: wrong format");
3717 exit(1);
3718 }
3719 qemu_uuid_set = true;
3720 break;
3721 case QEMU_OPTION_option_rom:
3722 if (nb_option_roms >= MAX_OPTION_ROMS) {
3723 error_report("too many option ROMs");
3724 exit(1);
3725 }
3726 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3727 optarg, true);
3728 if (!opts) {
3729 exit(1);
3730 }
3731 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3732 option_rom[nb_option_roms].bootindex =
3733 qemu_opt_get_number(opts, "bootindex", -1);
3734 if (!option_rom[nb_option_roms].name) {
3735 error_report("Option ROM file is not specified");
3736 exit(1);
3737 }
3738 nb_option_roms++;
3739 break;
3740 case QEMU_OPTION_semihosting:
3741 semihosting.enabled = true;
3742 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3743 break;
3744 case QEMU_OPTION_semihosting_config:
3745 semihosting.enabled = true;
3746 opts = qemu_opts_parse_noisily(qemu_find_opts("semihosting-config"),
3747 optarg, false);
3748 if (opts != NULL) {
3749 semihosting.enabled = qemu_opt_get_bool(opts, "enable",
3750 true);
3751 const char *target = qemu_opt_get(opts, "target");
3752 if (target != NULL) {
3753 if (strcmp("native", target) == 0) {
3754 semihosting.target = SEMIHOSTING_TARGET_NATIVE;
3755 } else if (strcmp("gdb", target) == 0) {
3756 semihosting.target = SEMIHOSTING_TARGET_GDB;
3757 } else if (strcmp("auto", target) == 0) {
3758 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3759 } else {
3760 error_report("unsupported semihosting-config %s",
3761 optarg);
3762 exit(1);
3763 }
3764 } else {
3765 semihosting.target = SEMIHOSTING_TARGET_AUTO;
3766 }
3767 /* Set semihosting argument count and vector */
3768 qemu_opt_foreach(opts, add_semihosting_arg,
3769 &semihosting, NULL);
3770 } else {
3771 error_report("unsupported semihosting-config %s", optarg);
3772 exit(1);
3773 }
3774 break;
3775 case QEMU_OPTION_name:
3776 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3777 optarg, true);
3778 if (!opts) {
3779 exit(1);
3780 }
3781 break;
3782 case QEMU_OPTION_prom_env:
3783 if (nb_prom_envs >= MAX_PROM_ENVS) {
3784 error_report("too many prom variables");
3785 exit(1);
3786 }
3787 prom_envs[nb_prom_envs] = optarg;
3788 nb_prom_envs++;
3789 break;
3790 case QEMU_OPTION_old_param:
3791 old_param = 1;
3792 break;
3793 case QEMU_OPTION_clock:
3794 /* Clock options no longer exist. Keep this option for
3795 * backward compatibility.
3796 */
3797 warn_report("This option is ignored and will be removed soon");
3798 break;
3799 case QEMU_OPTION_rtc:
3800 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3801 false);
3802 if (!opts) {
3803 exit(1);
3804 }
3805 break;
3806 case QEMU_OPTION_tb_size:
3807 #ifndef CONFIG_TCG
3808 error_report("TCG is disabled");
3809 exit(1);
3810 #endif
3811 if (qemu_strtoul(optarg, NULL, 0, &tcg_tb_size) < 0) {
3812 error_report("Invalid argument to -tb-size");
3813 exit(1);
3814 }
3815 break;
3816 case QEMU_OPTION_icount:
3817 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3818 optarg, true);
3819 if (!icount_opts) {
3820 exit(1);
3821 }
3822 break;
3823 case QEMU_OPTION_incoming:
3824 if (!incoming) {
3825 runstate_set(RUN_STATE_INMIGRATE);
3826 }
3827 incoming = optarg;
3828 break;
3829 case QEMU_OPTION_only_migratable:
3830 /*
3831 * TODO: we can remove this option one day, and we
3832 * should all use:
3833 *
3834 * "-global migration.only-migratable=true"
3835 */
3836 qemu_global_option("migration.only-migratable=true");
3837 break;
3838 case QEMU_OPTION_nodefaults:
3839 has_defaults = 0;
3840 break;
3841 case QEMU_OPTION_xen_domid:
3842 if (!(xen_available())) {
3843 error_report("Option not supported for this target");
3844 exit(1);
3845 }
3846 xen_domid = atoi(optarg);
3847 break;
3848 case QEMU_OPTION_xen_create:
3849 if (!(xen_available())) {
3850 error_report("Option not supported for this target");
3851 exit(1);
3852 }
3853 xen_mode = XEN_CREATE;
3854 break;
3855 case QEMU_OPTION_xen_attach:
3856 if (!(xen_available())) {
3857 error_report("Option not supported for this target");
3858 exit(1);
3859 }
3860 xen_mode = XEN_ATTACH;
3861 break;
3862 case QEMU_OPTION_xen_domid_restrict:
3863 if (!(xen_available())) {
3864 error_report("Option not supported for this target");
3865 exit(1);
3866 }
3867 xen_domid_restrict = true;
3868 break;
3869 case QEMU_OPTION_trace:
3870 g_free(trace_file);
3871 trace_file = trace_opt_parse(optarg);
3872 break;
3873 case QEMU_OPTION_trace_unassigned:
3874 trace_unassigned = true;
3875 break;
3876 case QEMU_OPTION_readconfig:
3877 {
3878 int ret = qemu_read_config_file(optarg);
3879 if (ret < 0) {
3880 error_report("read config %s: %s", optarg,
3881 strerror(-ret));
3882 exit(1);
3883 }
3884 break;
3885 }
3886 case QEMU_OPTION_spice:
3887 olist = qemu_find_opts("spice");
3888 if (!olist) {
3889 error_report("spice support is disabled");
3890 exit(1);
3891 }
3892 opts = qemu_opts_parse_noisily(olist, optarg, false);
3893 if (!opts) {
3894 exit(1);
3895 }
3896 display_remote++;
3897 break;
3898 case QEMU_OPTION_writeconfig:
3899 {
3900 FILE *fp;
3901 if (strcmp(optarg, "-") == 0) {
3902 fp = stdout;
3903 } else {
3904 fp = fopen(optarg, "w");
3905 if (fp == NULL) {
3906 error_report("open %s: %s", optarg,
3907 strerror(errno));
3908 exit(1);
3909 }
3910 }
3911 qemu_config_write(fp);
3912 if (fp != stdout) {
3913 fclose(fp);
3914 }
3915 break;
3916 }
3917 case QEMU_OPTION_qtest:
3918 qtest_chrdev = optarg;
3919 break;
3920 case QEMU_OPTION_qtest_log:
3921 qtest_log = optarg;
3922 break;
3923 case QEMU_OPTION_sandbox:
3924 #ifdef CONFIG_SECCOMP
3925 opts = qemu_opts_parse_noisily(qemu_find_opts("sandbox"),
3926 optarg, true);
3927 if (!opts) {
3928 exit(1);
3929 }
3930 #else
3931 error_report("-sandbox support is not enabled "
3932 "in this QEMU binary");
3933 exit(1);
3934 #endif
3935 break;
3936 case QEMU_OPTION_add_fd:
3937 #ifndef _WIN32
3938 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3939 optarg, false);
3940 if (!opts) {
3941 exit(1);
3942 }
3943 #else
3944 error_report("File descriptor passing is disabled on this "
3945 "platform");
3946 exit(1);
3947 #endif
3948 break;
3949 case QEMU_OPTION_object:
3950 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
3951 optarg, true);
3952 if (!opts) {
3953 exit(1);
3954 }
3955 break;
3956 case QEMU_OPTION_realtime:
3957 opts = qemu_opts_parse_noisily(qemu_find_opts("realtime"),
3958 optarg, false);
3959 if (!opts) {
3960 exit(1);
3961 }
3962 /* Don't override the -overcommit option if set */
3963 enable_mlock = enable_mlock ||
3964 qemu_opt_get_bool(opts, "mlock", true);
3965 break;
3966 case QEMU_OPTION_overcommit:
3967 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3968 optarg, false);
3969 if (!opts) {
3970 exit(1);
3971 }
3972 /* Don't override the -realtime option if set */
3973 enable_mlock = enable_mlock ||
3974 qemu_opt_get_bool(opts, "mem-lock", false);
3975 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3976 break;
3977 case QEMU_OPTION_msg:
3978 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3979 false);
3980 if (!opts) {
3981 exit(1);
3982 }
3983 configure_msg(opts);
3984 break;
3985 case QEMU_OPTION_dump_vmstate:
3986 if (vmstate_dump_file) {
3987 error_report("only one '-dump-vmstate' "
3988 "option may be given");
3989 exit(1);
3990 }
3991 vmstate_dump_file = fopen(optarg, "w");
3992 if (vmstate_dump_file == NULL) {
3993 error_report("open %s: %s", optarg, strerror(errno));
3994 exit(1);
3995 }
3996 break;
3997 case QEMU_OPTION_enable_sync_profile:
3998 qsp_enable();
3999 break;
4000 case QEMU_OPTION_nouserconfig:
4001 /* Nothing to be parsed here. Especially, do not error out below. */
4002 break;
4003 default:
4004 if (os_parse_cmd_args(popt->index, optarg)) {
4005 error_report("Option not supported in this build");
4006 exit(1);
4007 }
4008 }
4009 }
4010 }
4011 /*
4012 * Clear error location left behind by the loop.
4013 * Best done right after the loop. Do not insert code here!
4014 */
4015 loc_set_none();
4016
4017 replay_configure(icount_opts);
4018
4019 if (incoming && !preconfig_exit_requested) {
4020 error_report("'preconfig' and 'incoming' options are "
4021 "mutually exclusive");
4022 exit(EXIT_FAILURE);
4023 }
4024
4025 configure_rtc(qemu_find_opts_singleton("rtc"));
4026
4027 machine_class = select_machine();
4028
4029 set_memory_options(&ram_slots, &maxram_size, machine_class);
4030
4031 os_daemonize();
4032 rcu_disable_atfork();
4033
4034 if (pid_file && !qemu_write_pidfile(pid_file, &err)) {
4035 error_reportf_err(err, "cannot create PID file: ");
4036 exit(1);
4037 }
4038
4039 qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
4040 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
4041
4042 if (qemu_init_main_loop(&main_loop_err)) {
4043 error_report_err(main_loop_err);
4044 exit(1);
4045 }
4046
4047 #ifdef CONFIG_SECCOMP
4048 olist = qemu_find_opts_err("sandbox", NULL);
4049 if (olist) {
4050 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
4051 }
4052 #endif
4053
4054 qemu_opts_foreach(qemu_find_opts("name"),
4055 parse_name, NULL, &error_fatal);
4056
4057 #ifndef _WIN32
4058 qemu_opts_foreach(qemu_find_opts("add-fd"),
4059 parse_add_fd, NULL, &error_fatal);
4060
4061 qemu_opts_foreach(qemu_find_opts("add-fd"),
4062 cleanup_add_fd, NULL, &error_fatal);
4063 #endif
4064
4065 current_machine = MACHINE(object_new(object_class_get_name(
4066 OBJECT_CLASS(machine_class))));
4067 if (machine_help_func(qemu_get_machine_opts(), current_machine)) {
4068 exit(0);
4069 }
4070 object_property_add_child(object_get_root(), "machine",
4071 OBJECT(current_machine), &error_abort);
4072
4073 if (machine_class->minimum_page_bits) {
4074 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
4075 /* This would be a board error: specifying a minimum smaller than
4076 * a target's compile-time fixed setting.
4077 */
4078 g_assert_not_reached();
4079 }
4080 }
4081
4082 cpu_exec_init_all();
4083
4084 if (machine_class->hw_version) {
4085 qemu_set_hw_version(machine_class->hw_version);
4086 }
4087
4088 if (cpu_model && is_help_option(cpu_model)) {
4089 list_cpus(stdout, &fprintf, cpu_model);
4090 exit(0);
4091 }
4092
4093 if (!trace_init_backends()) {
4094 exit(1);
4095 }
4096 trace_init_file(trace_file);
4097
4098 /* Open the logfile at this point and set the log mask if necessary.
4099 */
4100 if (log_file) {
4101 qemu_set_log_filename(log_file, &error_fatal);
4102 }
4103
4104 if (log_mask) {
4105 int mask;
4106 mask = qemu_str_to_log_mask(log_mask);
4107 if (!mask) {
4108 qemu_print_log_usage(stdout);
4109 exit(1);
4110 }
4111 qemu_set_log(mask);
4112 } else {
4113 qemu_set_log(0);
4114 }
4115
4116 /* add configured firmware directories */
4117 dirs = g_strsplit(CONFIG_QEMU_FIRMWAREPATH, G_SEARCHPATH_SEPARATOR_S, 0);
4118 for (i = 0; dirs[i] != NULL; i++) {
4119 qemu_add_data_dir(dirs[i]);
4120 }
4121 g_strfreev(dirs);
4122
4123 /* try to find datadir relative to the executable path */
4124 dir = os_find_datadir();
4125 qemu_add_data_dir(dir);
4126 g_free(dir);
4127
4128 /* add the datadir specified when building */
4129 qemu_add_data_dir(CONFIG_QEMU_DATADIR);
4130
4131 /* -L help lists the data directories and exits. */
4132 if (list_data_dirs) {
4133 for (i = 0; i < data_dir_idx; i++) {
4134 printf("%s\n", data_dir[i]);
4135 }
4136 exit(0);
4137 }
4138
4139 /* machine_class: default to UP */
4140 machine_class->max_cpus = machine_class->max_cpus ?: 1;
4141 machine_class->min_cpus = machine_class->min_cpus ?: 1;
4142 machine_class->default_cpus = machine_class->default_cpus ?: 1;
4143
4144 /* default to machine_class->default_cpus */
4145 smp_cpus = machine_class->default_cpus;
4146 max_cpus = machine_class->default_cpus;
4147
4148 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
4149
4150 /* sanity-check smp_cpus and max_cpus against machine_class */
4151 if (smp_cpus < machine_class->min_cpus) {
4152 error_report("Invalid SMP CPUs %d. The min CPUs "
4153 "supported by machine '%s' is %d", smp_cpus,
4154 machine_class->name, machine_class->min_cpus);
4155 exit(1);
4156 }
4157 if (max_cpus > machine_class->max_cpus) {
4158 error_report("Invalid SMP CPUs %d. The max CPUs "
4159 "supported by machine '%s' is %d", max_cpus,
4160 machine_class->name, machine_class->max_cpus);
4161 exit(1);
4162 }
4163
4164 /*
4165 * Get the default machine options from the machine if it is not already
4166 * specified either by the configuration file or by the command line.
4167 */
4168 if (machine_class->default_machine_opts) {
4169 qemu_opts_set_defaults(qemu_find_opts("machine"),
4170 machine_class->default_machine_opts, 0);
4171 }
4172
4173 qemu_opts_foreach(qemu_find_opts("device"),
4174 default_driver_check, NULL, NULL);
4175 qemu_opts_foreach(qemu_find_opts("global"),
4176 default_driver_check, NULL, NULL);
4177
4178 if (!vga_model && !default_vga) {
4179 vga_interface_type = VGA_DEVICE;
4180 }
4181 if (!has_defaults || machine_class->no_serial) {
4182 default_serial = 0;
4183 }
4184 if (!has_defaults || machine_class->no_parallel) {
4185 default_parallel = 0;
4186 }
4187 if (!has_defaults || !machine_class->use_virtcon) {
4188 default_virtcon = 0;
4189 }
4190 if (!has_defaults || machine_class->no_floppy) {
4191 default_floppy = 0;
4192 }
4193 if (!has_defaults || machine_class->no_cdrom) {
4194 default_cdrom = 0;
4195 }
4196 if (!has_defaults || machine_class->no_sdcard) {
4197 default_sdcard = 0;
4198 }
4199 if (!has_defaults) {
4200 default_monitor = 0;
4201 default_net = 0;
4202 default_vga = 0;
4203 }
4204
4205 if (is_daemonized()) {
4206 if (!preconfig_exit_requested) {
4207 error_report("'preconfig' and 'daemonize' options are "
4208 "mutually exclusive");
4209 exit(EXIT_FAILURE);
4210 }
4211
4212 /* According to documentation and historically, -nographic redirects
4213 * serial port, parallel port and monitor to stdio, which does not work
4214 * with -daemonize. We can redirect these to null instead, but since
4215 * -nographic is legacy, let's just error out.
4216 * We disallow -nographic only if all other ports are not redirected
4217 * explicitly, to not break existing legacy setups which uses
4218 * -nographic _and_ redirects all ports explicitly - this is valid
4219 * usage, -nographic is just a no-op in this case.
4220 */
4221 if (nographic
4222 && (default_parallel || default_serial
4223 || default_monitor || default_virtcon)) {
4224 error_report("-nographic cannot be used with -daemonize");
4225 exit(1);
4226 }
4227 #ifdef CONFIG_CURSES
4228 if (dpy.type == DISPLAY_TYPE_CURSES) {
4229 error_report("curses display cannot be used with -daemonize");
4230 exit(1);
4231 }
4232 #endif
4233 }
4234
4235 if (nographic) {
4236 if (default_parallel)
4237 add_device_config(DEV_PARALLEL, "null");
4238 if (default_serial && default_monitor) {
4239 add_device_config(DEV_SERIAL, "mon:stdio");
4240 } else if (default_virtcon && default_monitor) {
4241 add_device_config(DEV_VIRTCON, "mon:stdio");
4242 } else {
4243 if (default_serial)
4244 add_device_config(DEV_SERIAL, "stdio");
4245 if (default_virtcon)
4246 add_device_config(DEV_VIRTCON, "stdio");
4247 if (default_monitor)
4248 monitor_parse("stdio", "readline", false);
4249 }
4250 } else {
4251 if (default_serial)
4252 add_device_config(DEV_SERIAL, "vc:80Cx24C");
4253 if (default_parallel)
4254 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
4255 if (default_monitor)
4256 monitor_parse("vc:80Cx24C", "readline", false);
4257 if (default_virtcon)
4258 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
4259 }
4260
4261 #if defined(CONFIG_VNC)
4262 if (!QTAILQ_EMPTY(&(qemu_find_opts("vnc")->head))) {
4263 display_remote++;
4264 }
4265 #endif
4266 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
4267 if (!qemu_display_find_default(&dpy)) {
4268 dpy.type = DISPLAY_TYPE_NONE;
4269 #if defined(CONFIG_VNC)
4270 vnc_parse("localhost:0,to=99,id=default", &error_abort);
4271 #endif
4272 }
4273 }
4274 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
4275 dpy.type = DISPLAY_TYPE_NONE;
4276 }
4277
4278 if ((no_frame || alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) {
4279 error_report("-no-frame, -alt-grab and -ctrl-grab are only valid "
4280 "for SDL, ignoring option");
4281 }
4282 if (dpy.has_window_close &&
4283 (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) {
4284 error_report("-no-quit is only valid for GTK and SDL, "
4285 "ignoring option");
4286 }
4287
4288 qemu_display_early_init(&dpy);
4289 qemu_console_early_init();
4290
4291 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
4292 #if defined(CONFIG_OPENGL)
4293 error_report("OpenGL is not supported by the display");
4294 #else
4295 error_report("OpenGL support is disabled");
4296 #endif
4297 exit(1);
4298 }
4299
4300 page_size_init();
4301 socket_init();
4302
4303 qemu_opts_foreach(qemu_find_opts("object"),
4304 user_creatable_add_opts_foreach,
4305 object_create_initial, &error_fatal);
4306
4307 qemu_opts_foreach(qemu_find_opts("chardev"),
4308 chardev_init_func, NULL, &error_fatal);
4309
4310 #ifdef CONFIG_VIRTFS
4311 qemu_opts_foreach(qemu_find_opts("fsdev"),
4312 fsdev_init_func, NULL, &error_fatal);
4313 #endif
4314
4315 if (qemu_opts_foreach(qemu_find_opts("device"),
4316 device_help_func, NULL, NULL)) {
4317 exit(0);
4318 }
4319
4320 machine_opts = qemu_get_machine_opts();
4321 qemu_opt_foreach(machine_opts, machine_set_property, current_machine,
4322 &error_fatal);
4323
4324 configure_accelerator(current_machine);
4325
4326 if (!qtest_enabled() && machine_class->deprecation_reason) {
4327 error_report("Machine type '%s' is deprecated: %s",
4328 machine_class->name, machine_class->deprecation_reason);
4329 }
4330
4331 /*
4332 * Register all the global properties, including accel properties,
4333 * machine properties, and user-specified ones.
4334 */
4335 register_global_properties(current_machine);
4336
4337 /*
4338 * Migration object can only be created after global properties
4339 * are applied correctly.
4340 */
4341 migration_object_init();
4342
4343 if (qtest_chrdev) {
4344 qtest_init(qtest_chrdev, qtest_log, &error_fatal);
4345 }
4346
4347 machine_opts = qemu_get_machine_opts();
4348 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4349 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4350 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4351 bios_name = qemu_opt_get(machine_opts, "firmware");
4352
4353 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4354 if (opts) {
4355 boot_order = qemu_opt_get(opts, "order");
4356 if (boot_order) {
4357 validate_bootdevices(boot_order, &error_fatal);
4358 }
4359
4360 boot_once = qemu_opt_get(opts, "once");
4361 if (boot_once) {
4362 validate_bootdevices(boot_once, &error_fatal);
4363 }
4364
4365 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4366 boot_strict = qemu_opt_get_bool(opts, "strict", false);
4367 }
4368
4369 if (!boot_order) {
4370 boot_order = machine_class->default_boot_order;
4371 }
4372
4373 if (!kernel_cmdline) {
4374 kernel_cmdline = "";
4375 current_machine->kernel_cmdline = (char *)kernel_cmdline;
4376 }
4377
4378 linux_boot = (kernel_filename != NULL);
4379
4380 if (!linux_boot && *kernel_cmdline != '\0') {
4381 error_report("-append only allowed with -kernel option");
4382 exit(1);
4383 }
4384
4385 if (!linux_boot && initrd_filename != NULL) {
4386 error_report("-initrd only allowed with -kernel option");
4387 exit(1);
4388 }
4389
4390 if (semihosting_enabled() && !semihosting_get_argc() && kernel_filename) {
4391 /* fall back to the -kernel/-append */
4392 semihosting_arg_fallback(kernel_filename, kernel_cmdline);
4393 }
4394
4395 os_set_line_buffering();
4396
4397 /* spice needs the timers to be initialized by this point */
4398 qemu_spice_init();
4399
4400 cpu_ticks_init();
4401 if (icount_opts) {
4402 if (!tcg_enabled()) {
4403 error_report("-icount is not allowed with hardware virtualization");
4404 exit(1);
4405 }
4406 configure_icount(icount_opts, &error_abort);
4407 qemu_opts_del(icount_opts);
4408 }
4409
4410 if (tcg_enabled()) {
4411 qemu_tcg_configure(accel_opts, &error_fatal);
4412 }
4413
4414 if (default_net) {
4415 QemuOptsList *net = qemu_find_opts("net");
4416 qemu_opts_set(net, NULL, "type", "nic", &error_abort);
4417 #ifdef CONFIG_SLIRP
4418 qemu_opts_set(net, NULL, "type", "user", &error_abort);
4419 #endif
4420 }
4421
4422 if (net_init_clients(&err) < 0) {
4423 error_report_err(err);
4424 exit(1);
4425 }
4426
4427 qemu_opts_foreach(qemu_find_opts("object"),
4428 user_creatable_add_opts_foreach,
4429 object_create_delayed, &error_fatal);
4430
4431 tpm_init();
4432
4433 /* init the bluetooth world */
4434 if (foreach_device_config(DEV_BT, bt_parse))
4435 exit(1);
4436
4437 if (!xen_enabled()) {
4438 /* On 32-bit hosts, QEMU is limited by virtual address space */
4439 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4440 error_report("at most 2047 MB RAM can be simulated");
4441 exit(1);
4442 }
4443 }
4444
4445 blk_mig_init();
4446 ram_mig_init();
4447 dirty_bitmap_mig_init();
4448
4449 /* If the currently selected machine wishes to override the units-per-bus
4450 * property of its default HBA interface type, do so now. */
4451 if (machine_class->units_per_default_bus) {
4452 override_max_devs(machine_class->block_default_type,
4453 machine_class->units_per_default_bus);
4454 }
4455
4456 /* open the virtual block devices */
4457 while (!QSIMPLEQ_EMPTY(&bdo_queue)) {
4458 BlockdevOptions_queue *bdo = QSIMPLEQ_FIRST(&bdo_queue);
4459
4460 QSIMPLEQ_REMOVE_HEAD(&bdo_queue, entry);
4461 loc_push_restore(&bdo->loc);
4462 qmp_blockdev_add(bdo->bdo, &error_fatal);
4463 loc_pop(&bdo->loc);
4464 qapi_free_BlockdevOptions(bdo->bdo);
4465 g_free(bdo);
4466 }
4467 if (snapshot || replay_mode != REPLAY_MODE_NONE) {
4468 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
4469 NULL, NULL);
4470 }
4471 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4472 &machine_class->block_default_type, &error_fatal)) {
4473 /* We printed help */
4474 exit(0);
4475 }
4476
4477 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
4478 CDROM_OPTS);
4479 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4480 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4481
4482 qemu_opts_foreach(qemu_find_opts("mon"),
4483 mon_init_func, NULL, &error_fatal);
4484
4485 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4486 exit(1);
4487 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4488 exit(1);
4489 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4490 exit(1);
4491 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4492 exit(1);
4493
4494 /* If no default VGA is requested, the default is "none". */
4495 if (default_vga) {
4496 if (machine_class->default_display) {
4497 vga_model = machine_class->default_display;
4498 } else if (vga_interface_available(VGA_CIRRUS)) {
4499 vga_model = "cirrus";
4500 } else if (vga_interface_available(VGA_STD)) {
4501 vga_model = "std";
4502 }
4503 }
4504 if (vga_model) {
4505 select_vgahw(vga_model);
4506 }
4507
4508 if (watchdog) {
4509 i = select_watchdog(watchdog);
4510 if (i > 0)
4511 exit (i == 1 ? 1 : 0);
4512 }
4513
4514 /* This checkpoint is required by replay to separate prior clock
4515 reading from the other reads, because timer polling functions query
4516 clock values from the log. */
4517 replay_checkpoint(CHECKPOINT_INIT);
4518 qdev_machine_init();
4519
4520 current_machine->ram_size = ram_size;
4521 current_machine->maxram_size = maxram_size;
4522 current_machine->ram_slots = ram_slots;
4523 current_machine->boot_order = boot_order;
4524
4525 /* parse features once if machine provides default cpu_type */
4526 current_machine->cpu_type = machine_class->default_cpu_type;
4527 if (cpu_model) {
4528 current_machine->cpu_type = parse_cpu_model(cpu_model);
4529 }
4530 parse_numa_opts(current_machine);
4531
4532 /* do monitor/qmp handling at preconfig state if requested */
4533 main_loop();
4534
4535 /* from here on runstate is RUN_STATE_PRELAUNCH */
4536 machine_run_board_init(current_machine);
4537
4538 realtime_init();
4539
4540 soundhw_init();
4541
4542 if (hax_enabled()) {
4543 hax_sync_vcpus();
4544 }
4545
4546 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
4547 parse_fw_cfg, fw_cfg_find(), &error_fatal);
4548
4549 /* init USB devices */
4550 if (machine_usb(current_machine)) {
4551 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4552 exit(1);
4553 }
4554
4555 /* Check if IGD GFX passthrough. */
4556 igd_gfx_passthru();
4557
4558 /* init generic devices */
4559 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
4560 qemu_opts_foreach(qemu_find_opts("device"),
4561 device_init_func, NULL, &error_fatal);
4562
4563 cpu_synchronize_all_post_init();
4564
4565 rom_reset_order_override();
4566
4567 /* Did we create any drives that we failed to create a device for? */
4568 drive_check_orphaned();
4569
4570 /* Don't warn about the default network setup that you get if
4571 * no command line -net or -netdev options are specified. There
4572 * are two cases that we would otherwise complain about:
4573 * (1) board doesn't support a NIC but the implicit "-net nic"
4574 * requested one
4575 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
4576 * sets up a nic that isn't connected to anything.
4577 */
4578 if (!default_net && (!qtest_enabled() || has_defaults)) {
4579 net_check_clients();
4580 }
4581
4582 if (boot_once) {
4583 qemu_boot_set(boot_once, &error_fatal);
4584 qemu_register_reset(restore_boot_order, g_strdup(boot_order));
4585 }
4586
4587 /* init local displays */
4588 ds = init_displaystate();
4589 qemu_display_init(ds, &dpy);
4590
4591 /* must be after terminal init, SDL library changes signal handlers */
4592 os_setup_signal_handling();
4593
4594 /* init remote displays */
4595 #ifdef CONFIG_VNC
4596 qemu_opts_foreach(qemu_find_opts("vnc"),
4597 vnc_init_func, NULL, &error_fatal);
4598 #endif
4599
4600 if (using_spice) {
4601 qemu_spice_display_init();
4602 }
4603
4604 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4605 exit(1);
4606 }
4607
4608 qdev_machine_creation_done();
4609
4610 /* TODO: once all bus devices are qdevified, this should be done
4611 * when bus is created by qdev.c */
4612 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4613 qemu_run_machine_init_done_notifiers();
4614
4615 if (rom_check_and_register_reset() != 0) {
4616 error_report("rom check and register reset failed");
4617 exit(1);
4618 }
4619
4620 replay_start();
4621
4622 /* This checkpoint is required by replay to separate prior clock
4623 reading from the other reads, because timer polling functions query
4624 clock values from the log. */
4625 replay_checkpoint(CHECKPOINT_RESET);
4626 qemu_system_reset(SHUTDOWN_CAUSE_NONE);
4627 register_global_state();
4628 if (loadvm) {
4629 Error *local_err = NULL;
4630 if (load_snapshot(loadvm, &local_err) < 0) {
4631 error_report_err(local_err);
4632 autostart = 0;
4633 exit(1);
4634 }
4635 }
4636 if (replay_mode != REPLAY_MODE_NONE) {
4637 replay_vmstate_init();
4638 }
4639
4640 qdev_prop_check_globals();
4641 if (vmstate_dump_file) {
4642 /* dump and exit */
4643 dump_vmstate_json_to_file(vmstate_dump_file);
4644 return 0;
4645 }
4646
4647 if (incoming) {
4648 Error *local_err = NULL;
4649 qemu_start_incoming_migration(incoming, &local_err);
4650 if (local_err) {
4651 error_reportf_err(local_err, "-incoming %s: ", incoming);
4652 exit(1);
4653 }
4654 } else if (autostart) {
4655 vm_start();
4656 }
4657
4658 accel_setup_post(current_machine);
4659 os_setup_post();
4660
4661 main_loop();
4662
4663 gdbserver_cleanup();
4664
4665 /* No more vcpu or device emulation activity beyond this point */
4666 vm_shutdown();
4667
4668 job_cancel_sync_all();
4669 bdrv_close_all();
4670
4671 res_free();
4672
4673 /* vhost-user must be cleaned up before chardevs. */
4674 tpm_cleanup();
4675 net_cleanup();
4676 audio_cleanup();
4677 monitor_cleanup();
4678 qemu_chr_cleanup();
4679 user_creatable_cleanup();
4680 migration_object_finalize();
4681 /* TODO: unref root container, check all devices are ok */
4682
4683 return 0;
4684 }
AR7 emulation for QEMU