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/help-texts.h"
27 #include "qemu/datadir.h"
28 #include "qemu/units.h"
29 #include "exec/cpu-common.h"
30 #include "exec/page-vary.h"
31 #include "hw/qdev-properties.h"
32 #include "qapi/compat-policy.h"
33 #include "qapi/error.h"
34 #include "qapi/qmp/qdict.h"
35 #include "qapi/qmp/qstring.h"
36 #include "qapi/qmp/qjson.h"
37 #include "qemu-version.h"
38 #include "qemu/cutils.h"
39 #include "qemu/help_option.h"
40 #include "qemu/hw-version.h"
41 #include "qemu/uuid.h"
42 #include "sysemu/reset.h"
43 #include "sysemu/runstate.h"
44 #include "sysemu/runstate-action.h"
45 #include "sysemu/seccomp.h"
46 #include "sysemu/tcg.h"
47 #include "sysemu/xen.h"
48
49 #include "qemu/error-report.h"
50 #include "qemu/sockets.h"
51 #include "qemu/accel.h"
52 #include "qemu/async-teardown.h"
53 #include "hw/usb.h"
54 #include "hw/isa/isa.h"
55 #include "hw/scsi/scsi.h"
56 #include "hw/display/vga.h"
57 #include "hw/firmware/smbios.h"
58 #include "hw/acpi/acpi.h"
59 #include "hw/xen/xen.h"
60 #include "hw/loader.h"
61 #include "monitor/qdev.h"
62 #include "net/net.h"
63 #include "net/slirp.h"
64 #include "monitor/monitor.h"
65 #include "ui/console.h"
66 #include "ui/input.h"
67 #include "sysemu/sysemu.h"
68 #include "sysemu/numa.h"
69 #include "sysemu/hostmem.h"
70 #include "exec/gdbstub.h"
71 #include "qemu/timer.h"
72 #include "chardev/char.h"
73 #include "qemu/bitmap.h"
74 #include "qemu/log.h"
75 #include "sysemu/blockdev.h"
76 #include "hw/block/block.h"
77 #include "hw/i386/x86.h"
78 #include "hw/i386/pc.h"
79 #include "migration/misc.h"
80 #include "migration/snapshot.h"
81 #include "sysemu/tpm.h"
82 #include "sysemu/dma.h"
83 #include "hw/audio/soundhw.h"
84 #include "audio/audio.h"
85 #include "sysemu/cpus.h"
86 #include "sysemu/cpu-timers.h"
87 #include "migration/colo.h"
88 #include "migration/postcopy-ram.h"
89 #include "sysemu/kvm.h"
90 #include "qapi/qobject-input-visitor.h"
91 #include "qemu/option.h"
92 #include "qemu/config-file.h"
93 #include "qemu/main-loop.h"
94 #ifdef CONFIG_VIRTFS
95 #include "fsdev/qemu-fsdev.h"
96 #endif
97 #include "sysemu/qtest.h"
98 #ifdef CONFIG_TCG
99 #include "accel/tcg/perf.h"
100 #endif
101
102 #include "disas/disas.h"
103
104 #include "trace.h"
105 #include "trace/control.h"
106 #include "qemu/plugin.h"
107 #include "qemu/queue.h"
108 #include "sysemu/arch_init.h"
109 #include "exec/confidential-guest-support.h"
110
111 #include "ui/qemu-spice.h"
112 #include "qapi/string-input-visitor.h"
113 #include "qapi/opts-visitor.h"
114 #include "qapi/clone-visitor.h"
115 #include "qom/object_interfaces.h"
116 #include "semihosting/semihost.h"
117 #include "crypto/init.h"
118 #include "sysemu/replay.h"
119 #include "qapi/qapi-events-run-state.h"
120 #include "qapi/qapi-types-audio.h"
121 #include "qapi/qapi-visit-audio.h"
122 #include "qapi/qapi-visit-block-core.h"
123 #include "qapi/qapi-visit-compat.h"
124 #include "qapi/qapi-visit-machine.h"
125 #include "qapi/qapi-visit-ui.h"
126 #include "qapi/qapi-commands-block-core.h"
127 #include "qapi/qapi-commands-migration.h"
128 #include "qapi/qapi-commands-misc.h"
129 #include "qapi/qapi-visit-qom.h"
130 #include "qapi/qapi-commands-ui.h"
131 #include "block/qdict.h"
132 #include "qapi/qmp/qerror.h"
133 #include "sysemu/iothread.h"
134 #include "qemu/guest-random.h"
135 #include "qemu/keyval.h"
136
137 #define MAX_VIRTIO_CONSOLES 1
138
139 typedef struct BlockdevOptionsQueueEntry {
140 BlockdevOptions *bdo;
141 Location loc;
142 QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry;
143 } BlockdevOptionsQueueEntry;
144
145 typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue;
146
147 typedef struct ObjectOption {
148 ObjectOptions *opts;
149 QTAILQ_ENTRY(ObjectOption) next;
150 } ObjectOption;
151
152 typedef struct DeviceOption {
153 QDict *opts;
154 Location loc;
155 QTAILQ_ENTRY(DeviceOption) next;
156 } DeviceOption;
157
158 static const char *cpu_option;
159 static const char *mem_path;
160 static const char *incoming;
161 static const char *loadvm;
162 static const char *accelerators;
163 static bool have_custom_ram_size;
164 static const char *ram_memdev_id;
165 static QDict *machine_opts_dict;
166 static QTAILQ_HEAD(, ObjectOption) object_opts = QTAILQ_HEAD_INITIALIZER(object_opts);
167 static QTAILQ_HEAD(, DeviceOption) device_opts = QTAILQ_HEAD_INITIALIZER(device_opts);
168 static int display_remote;
169 static int snapshot;
170 static bool preconfig_requested;
171 static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
172 static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
173 static bool nographic = false;
174 static int mem_prealloc; /* force preallocation of physical target memory */
175 static const char *vga_model = NULL;
176 static DisplayOptions dpy;
177 static int num_serial_hds;
178 static Chardev **serial_hds;
179 static const char *log_mask;
180 static const char *log_file;
181 static bool list_data_dirs;
182 static const char *qtest_chrdev;
183 static const char *qtest_log;
184 static bool opt_one_insn_per_tb;
185
186 static int has_defaults = 1;
187 static int default_audio = 1;
188 static int default_serial = 1;
189 static int default_parallel = 1;
190 static int default_monitor = 1;
191 static int default_floppy = 1;
192 static int default_cdrom = 1;
193 static int default_sdcard = 1;
194 static int default_vga = 1;
195 static int default_net = 1;
196
197 static const struct {
198 const char *driver;
199 int *flag;
200 } default_list[] = {
201 { .driver = "xen-console", .flag = &default_serial },
202 { .driver = "isa-serial", .flag = &default_serial },
203 { .driver = "isa-parallel", .flag = &default_parallel },
204 { .driver = "isa-fdc", .flag = &default_floppy },
205 { .driver = "floppy", .flag = &default_floppy },
206 { .driver = "ide-cd", .flag = &default_cdrom },
207 { .driver = "ide-hd", .flag = &default_cdrom },
208 { .driver = "scsi-cd", .flag = &default_cdrom },
209 { .driver = "scsi-hd", .flag = &default_cdrom },
210 { .driver = "VGA", .flag = &default_vga },
211 { .driver = "isa-vga", .flag = &default_vga },
212 { .driver = "cirrus-vga", .flag = &default_vga },
213 { .driver = "isa-cirrus-vga", .flag = &default_vga },
214 { .driver = "vmware-svga", .flag = &default_vga },
215 { .driver = "qxl-vga", .flag = &default_vga },
216 { .driver = "virtio-vga", .flag = &default_vga },
217 { .driver = "ati-vga", .flag = &default_vga },
218 { .driver = "vhost-user-vga", .flag = &default_vga },
219 { .driver = "virtio-vga-gl", .flag = &default_vga },
220 { .driver = "virtio-vga-rutabaga", .flag = &default_vga },
221 };
222
223 static QemuOptsList qemu_rtc_opts = {
224 .name = "rtc",
225 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
226 .merge_lists = true,
227 .desc = {
228 {
229 .name = "base",
230 .type = QEMU_OPT_STRING,
231 },{
232 .name = "clock",
233 .type = QEMU_OPT_STRING,
234 },{
235 .name = "driftfix",
236 .type = QEMU_OPT_STRING,
237 },
238 { /* end of list */ }
239 },
240 };
241
242 static QemuOptsList qemu_option_rom_opts = {
243 .name = "option-rom",
244 .implied_opt_name = "romfile",
245 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
246 .desc = {
247 {
248 .name = "bootindex",
249 .type = QEMU_OPT_NUMBER,
250 }, {
251 .name = "romfile",
252 .type = QEMU_OPT_STRING,
253 },
254 { /* end of list */ }
255 },
256 };
257
258 static QemuOptsList qemu_accel_opts = {
259 .name = "accel",
260 .implied_opt_name = "accel",
261 .head = QTAILQ_HEAD_INITIALIZER(qemu_accel_opts.head),
262 .desc = {
263 /*
264 * no elements => accept any
265 * sanity checking will happen later
266 * when setting accelerator properties
267 */
268 { }
269 },
270 };
271
272 static QemuOptsList qemu_boot_opts = {
273 .name = "boot-opts",
274 .implied_opt_name = "order",
275 .merge_lists = true,
276 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
277 .desc = {
278 {
279 .name = "order",
280 .type = QEMU_OPT_STRING,
281 }, {
282 .name = "once",
283 .type = QEMU_OPT_STRING,
284 }, {
285 .name = "menu",
286 .type = QEMU_OPT_BOOL,
287 }, {
288 .name = "splash",
289 .type = QEMU_OPT_STRING,
290 }, {
291 .name = "splash-time",
292 .type = QEMU_OPT_NUMBER,
293 }, {
294 .name = "reboot-timeout",
295 .type = QEMU_OPT_NUMBER,
296 }, {
297 .name = "strict",
298 .type = QEMU_OPT_BOOL,
299 },
300 { /*End of list */ }
301 },
302 };
303
304 static QemuOptsList qemu_add_fd_opts = {
305 .name = "add-fd",
306 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
307 .desc = {
308 {
309 .name = "fd",
310 .type = QEMU_OPT_NUMBER,
311 .help = "file descriptor of which a duplicate is added to fd set",
312 },{
313 .name = "set",
314 .type = QEMU_OPT_NUMBER,
315 .help = "ID of the fd set to add fd to",
316 },{
317 .name = "opaque",
318 .type = QEMU_OPT_STRING,
319 .help = "free-form string used to describe fd",
320 },
321 { /* end of list */ }
322 },
323 };
324
325 static QemuOptsList qemu_object_opts = {
326 .name = "object",
327 .implied_opt_name = "qom-type",
328 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
329 .desc = {
330 { }
331 },
332 };
333
334 static QemuOptsList qemu_tpmdev_opts = {
335 .name = "tpmdev",
336 .implied_opt_name = "type",
337 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
338 .desc = {
339 /* options are defined in the TPM backends */
340 { /* end of list */ }
341 },
342 };
343
344 static QemuOptsList qemu_overcommit_opts = {
345 .name = "overcommit",
346 .head = QTAILQ_HEAD_INITIALIZER(qemu_overcommit_opts.head),
347 .desc = {
348 {
349 .name = "mem-lock",
350 .type = QEMU_OPT_BOOL,
351 },
352 {
353 .name = "cpu-pm",
354 .type = QEMU_OPT_BOOL,
355 },
356 { /* end of list */ }
357 },
358 };
359
360 static QemuOptsList qemu_msg_opts = {
361 .name = "msg",
362 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
363 .desc = {
364 {
365 .name = "timestamp",
366 .type = QEMU_OPT_BOOL,
367 },
368 {
369 .name = "guest-name",
370 .type = QEMU_OPT_BOOL,
371 .help = "Prepends guest name for error messages but only if "
372 "-name guest is set otherwise option is ignored\n",
373 },
374 { /* end of list */ }
375 },
376 };
377
378 static QemuOptsList qemu_name_opts = {
379 .name = "name",
380 .implied_opt_name = "guest",
381 .merge_lists = true,
382 .head = QTAILQ_HEAD_INITIALIZER(qemu_name_opts.head),
383 .desc = {
384 {
385 .name = "guest",
386 .type = QEMU_OPT_STRING,
387 .help = "Sets the name of the guest.\n"
388 "This name will be displayed in the SDL window caption.\n"
389 "The name will also be used for the VNC server",
390 }, {
391 .name = "process",
392 .type = QEMU_OPT_STRING,
393 .help = "Sets the name of the QEMU process, as shown in top etc",
394 }, {
395 .name = "debug-threads",
396 .type = QEMU_OPT_BOOL,
397 .help = "When enabled, name the individual threads; defaults off.\n"
398 "NOTE: The thread names are for debugging and not a\n"
399 "stable API.",
400 },
401 { /* End of list */ }
402 },
403 };
404
405 static QemuOptsList qemu_mem_opts = {
406 .name = "memory",
407 .implied_opt_name = "size",
408 .head = QTAILQ_HEAD_INITIALIZER(qemu_mem_opts.head),
409 .merge_lists = true,
410 .desc = {
411 {
412 .name = "size",
413 .type = QEMU_OPT_SIZE,
414 },
415 {
416 .name = "slots",
417 .type = QEMU_OPT_NUMBER,
418 },
419 {
420 .name = "maxmem",
421 .type = QEMU_OPT_SIZE,
422 },
423 { /* end of list */ }
424 },
425 };
426
427 static QemuOptsList qemu_icount_opts = {
428 .name = "icount",
429 .implied_opt_name = "shift",
430 .merge_lists = true,
431 .head = QTAILQ_HEAD_INITIALIZER(qemu_icount_opts.head),
432 .desc = {
433 {
434 .name = "shift",
435 .type = QEMU_OPT_STRING,
436 }, {
437 .name = "align",
438 .type = QEMU_OPT_BOOL,
439 }, {
440 .name = "sleep",
441 .type = QEMU_OPT_BOOL,
442 }, {
443 .name = "rr",
444 .type = QEMU_OPT_STRING,
445 }, {
446 .name = "rrfile",
447 .type = QEMU_OPT_STRING,
448 }, {
449 .name = "rrsnapshot",
450 .type = QEMU_OPT_STRING,
451 },
452 { /* end of list */ }
453 },
454 };
455
456 static QemuOptsList qemu_fw_cfg_opts = {
457 .name = "fw_cfg",
458 .implied_opt_name = "name",
459 .head = QTAILQ_HEAD_INITIALIZER(qemu_fw_cfg_opts.head),
460 .desc = {
461 {
462 .name = "name",
463 .type = QEMU_OPT_STRING,
464 .help = "Sets the fw_cfg name of the blob to be inserted",
465 }, {
466 .name = "file",
467 .type = QEMU_OPT_STRING,
468 .help = "Sets the name of the file from which "
469 "the fw_cfg blob will be loaded",
470 }, {
471 .name = "string",
472 .type = QEMU_OPT_STRING,
473 .help = "Sets content of the blob to be inserted from a string",
474 }, {
475 .name = "gen_id",
476 .type = QEMU_OPT_STRING,
477 .help = "Sets id of the object generating the fw_cfg blob "
478 "to be inserted",
479 },
480 { /* end of list */ }
481 },
482 };
483
484 static QemuOptsList qemu_action_opts = {
485 .name = "action",
486 .merge_lists = true,
487 .head = QTAILQ_HEAD_INITIALIZER(qemu_action_opts.head),
488 .desc = {
489 {
490 .name = "shutdown",
491 .type = QEMU_OPT_STRING,
492 },{
493 .name = "reboot",
494 .type = QEMU_OPT_STRING,
495 },{
496 .name = "panic",
497 .type = QEMU_OPT_STRING,
498 },{
499 .name = "watchdog",
500 .type = QEMU_OPT_STRING,
501 },
502 { /* end of list */ }
503 },
504 };
505
qemu_get_vm_name(void)506 const char *qemu_get_vm_name(void)
507 {
508 return qemu_name;
509 }
510
default_driver_disable(const char * driver)511 static void default_driver_disable(const char *driver)
512 {
513 int i;
514
515 if (!driver) {
516 return;
517 }
518
519 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
520 if (strcmp(default_list[i].driver, driver) != 0)
521 continue;
522 *(default_list[i].flag) = 0;
523 }
524 }
525
default_driver_check(void * opaque,QemuOpts * opts,Error ** errp)526 static int default_driver_check(void *opaque, QemuOpts *opts, Error **errp)
527 {
528 const char *driver = qemu_opt_get(opts, "driver");
529
530 default_driver_disable(driver);
531 return 0;
532 }
533
default_driver_check_json(void)534 static void default_driver_check_json(void)
535 {
536 DeviceOption *opt;
537
538 QTAILQ_FOREACH(opt, &device_opts, next) {
539 const char *driver = qdict_get_try_str(opt->opts, "driver");
540 default_driver_disable(driver);
541 }
542 }
543
parse_name(void * opaque,QemuOpts * opts,Error ** errp)544 static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
545 {
546 const char *proc_name;
547
548 if (qemu_opt_get(opts, "debug-threads")) {
549 qemu_thread_naming(qemu_opt_get_bool(opts, "debug-threads", false));
550 }
551 qemu_name = qemu_opt_get(opts, "guest");
552
553 proc_name = qemu_opt_get(opts, "process");
554 if (proc_name) {
555 os_set_proc_name(proc_name);
556 }
557
558 return 0;
559 }
560
defaults_enabled(void)561 bool defaults_enabled(void)
562 {
563 return has_defaults;
564 }
565
566 #ifndef _WIN32
parse_add_fd(void * opaque,QemuOpts * opts,Error ** errp)567 static int parse_add_fd(void *opaque, QemuOpts *opts, Error **errp)
568 {
569 int fd, dupfd, flags;
570 int64_t fdset_id;
571 const char *fd_opaque = NULL;
572 AddfdInfo *fdinfo;
573
574 fd = qemu_opt_get_number(opts, "fd", -1);
575 fdset_id = qemu_opt_get_number(opts, "set", -1);
576 fd_opaque = qemu_opt_get(opts, "opaque");
577
578 if (fd < 0) {
579 error_setg(errp, "fd option is required and must be non-negative");
580 return -1;
581 }
582
583 if (fd <= STDERR_FILENO) {
584 error_setg(errp, "fd cannot be a standard I/O stream");
585 return -1;
586 }
587
588 /*
589 * All fds inherited across exec() necessarily have FD_CLOEXEC
590 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
591 */
592 flags = fcntl(fd, F_GETFD);
593 if (flags == -1 || (flags & FD_CLOEXEC)) {
594 error_setg(errp, "fd is not valid or already in use");
595 return -1;
596 }
597
598 if (fdset_id < 0) {
599 error_setg(errp, "set option is required and must be non-negative");
600 return -1;
601 }
602
603 #ifdef F_DUPFD_CLOEXEC
604 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
605 #else
606 dupfd = dup(fd);
607 if (dupfd != -1) {
608 qemu_set_cloexec(dupfd);
609 }
610 #endif
611 if (dupfd == -1) {
612 error_setg(errp, "error duplicating fd: %s", strerror(errno));
613 return -1;
614 }
615
616 /* add the duplicate fd, and optionally the opaque string, to the fd set */
617 fdinfo = monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque,
618 &error_abort);
619 g_free(fdinfo);
620
621 return 0;
622 }
623
cleanup_add_fd(void * opaque,QemuOpts * opts,Error ** errp)624 static int cleanup_add_fd(void *opaque, QemuOpts *opts, Error **errp)
625 {
626 int fd;
627
628 fd = qemu_opt_get_number(opts, "fd", -1);
629 close(fd);
630
631 return 0;
632 }
633 #endif
634
635 /***********************************************************/
636 /* QEMU Block devices */
637
638 #define HD_OPTS "media=disk"
639 #define CDROM_OPTS "media=cdrom"
640 #define FD_OPTS ""
641 #define PFLASH_OPTS ""
642 #define MTD_OPTS ""
643 #define SD_OPTS ""
644
drive_init_func(void * opaque,QemuOpts * opts,Error ** errp)645 static int drive_init_func(void *opaque, QemuOpts *opts, Error **errp)
646 {
647 BlockInterfaceType *block_default_type = opaque;
648
649 return drive_new(opts, *block_default_type, errp) == NULL;
650 }
651
drive_enable_snapshot(void * opaque,QemuOpts * opts,Error ** errp)652 static int drive_enable_snapshot(void *opaque, QemuOpts *opts, Error **errp)
653 {
654 if (qemu_opt_get(opts, "snapshot") == NULL) {
655 qemu_opt_set(opts, "snapshot", "on", &error_abort);
656 }
657 return 0;
658 }
659
default_drive(int enable,int snapshot,BlockInterfaceType type,int index,const char * optstr)660 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
661 int index, const char *optstr)
662 {
663 QemuOpts *opts;
664 DriveInfo *dinfo;
665
666 if (!enable || drive_get_by_index(type, index)) {
667 return;
668 }
669
670 opts = drive_add(type, index, NULL, optstr);
671 if (snapshot) {
672 drive_enable_snapshot(NULL, opts, NULL);
673 }
674
675 dinfo = drive_new(opts, type, &error_abort);
676 dinfo->is_default = true;
677
678 }
679
configure_blockdev(BlockdevOptionsQueue * bdo_queue,MachineClass * machine_class,int snapshot)680 static void configure_blockdev(BlockdevOptionsQueue *bdo_queue,
681 MachineClass *machine_class, int snapshot)
682 {
683 /*
684 * If the currently selected machine wishes to override the
685 * units-per-bus property of its default HBA interface type, do so
686 * now.
687 */
688 if (machine_class->units_per_default_bus) {
689 override_max_devs(machine_class->block_default_type,
690 machine_class->units_per_default_bus);
691 }
692
693 /* open the virtual block devices */
694 while (!QSIMPLEQ_EMPTY(bdo_queue)) {
695 BlockdevOptionsQueueEntry *bdo = QSIMPLEQ_FIRST(bdo_queue);
696
697 QSIMPLEQ_REMOVE_HEAD(bdo_queue, entry);
698 loc_push_restore(&bdo->loc);
699 qmp_blockdev_add(bdo->bdo, &error_fatal);
700 loc_pop(&bdo->loc);
701 qapi_free_BlockdevOptions(bdo->bdo);
702 g_free(bdo);
703 }
704 if (snapshot) {
705 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot,
706 NULL, NULL);
707 }
708 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
709 &machine_class->block_default_type, &error_fatal)) {
710 /* We printed help */
711 exit(0);
712 }
713
714 default_drive(default_cdrom, snapshot, machine_class->block_default_type, 2,
715 CDROM_OPTS);
716 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
717 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
718
719 }
720
721 static QemuOptsList qemu_smp_opts = {
722 .name = "smp-opts",
723 .implied_opt_name = "cpus",
724 .merge_lists = true,
725 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
726 .desc = {
727 {
728 .name = "cpus",
729 .type = QEMU_OPT_NUMBER,
730 }, {
731 .name = "drawers",
732 .type = QEMU_OPT_NUMBER,
733 }, {
734 .name = "books",
735 .type = QEMU_OPT_NUMBER,
736 }, {
737 .name = "sockets",
738 .type = QEMU_OPT_NUMBER,
739 }, {
740 .name = "dies",
741 .type = QEMU_OPT_NUMBER,
742 }, {
743 .name = "clusters",
744 .type = QEMU_OPT_NUMBER,
745 }, {
746 .name = "cores",
747 .type = QEMU_OPT_NUMBER,
748 }, {
749 .name = "threads",
750 .type = QEMU_OPT_NUMBER,
751 }, {
752 .name = "maxcpus",
753 .type = QEMU_OPT_NUMBER,
754 },
755 { /*End of list */ }
756 },
757 };
758
759 #if defined(CONFIG_POSIX)
760 static QemuOptsList qemu_run_with_opts = {
761 .name = "run-with",
762 .head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
763 .desc = {
764 #if defined(CONFIG_LINUX)
765 {
766 .name = "async-teardown",
767 .type = QEMU_OPT_BOOL,
768 },
769 #endif
770 {
771 .name = "chroot",
772 .type = QEMU_OPT_STRING,
773 },
774 { /* end of list */ }
775 },
776 };
777
778 #define qemu_add_run_with_opts() qemu_add_opts(&qemu_run_with_opts)
779
780 #else
781
782 #define qemu_add_run_with_opts()
783
784 #endif /* CONFIG_POSIX */
785
realtime_init(void)786 static void realtime_init(void)
787 {
788 if (enable_mlock) {
789 if (os_mlock() < 0) {
790 error_report("locking memory failed");
791 exit(1);
792 }
793 }
794 }
795
796
configure_msg(QemuOpts * opts)797 static void configure_msg(QemuOpts *opts)
798 {
799 message_with_timestamp = qemu_opt_get_bool(opts, "timestamp", false);
800 error_with_guestname = qemu_opt_get_bool(opts, "guest-name", false);
801 }
802
803
804 /***********************************************************/
805 /* USB devices */
806
usb_device_add(const char * devname)807 static int usb_device_add(const char *devname)
808 {
809 USBDevice *dev = NULL;
810
811 if (!machine_usb(current_machine)) {
812 return -1;
813 }
814
815 dev = usbdevice_create(devname);
816 if (!dev)
817 return -1;
818
819 return 0;
820 }
821
usb_parse(const char * cmdline)822 static int usb_parse(const char *cmdline)
823 {
824 int r;
825 r = usb_device_add(cmdline);
826 if (r < 0) {
827 error_report("could not add USB device '%s'", cmdline);
828 }
829 return r;
830 }
831
832 /***********************************************************/
833 /* machine registration */
834
find_machine(const char * name,GSList * machines)835 static MachineClass *find_machine(const char *name, GSList *machines)
836 {
837 GSList *el;
838
839 for (el = machines; el; el = el->next) {
840 MachineClass *mc = el->data;
841
842 if (!strcmp(mc->name, name) || !g_strcmp0(mc->alias, name)) {
843 return mc;
844 }
845 }
846
847 return NULL;
848 }
849
find_default_machine(GSList * machines)850 static MachineClass *find_default_machine(GSList *machines)
851 {
852 GSList *el;
853 MachineClass *default_machineclass = NULL;
854
855 for (el = machines; el; el = el->next) {
856 MachineClass *mc = el->data;
857
858 if (mc->is_default) {
859 assert(default_machineclass == NULL && "Multiple default machines");
860 default_machineclass = mc;
861 }
862 }
863
864 return default_machineclass;
865 }
866
version(void)867 static void version(void)
868 {
869 printf("QEMU emulator version " QEMU_FULL_VERSION "\n"
870 QEMU_COPYRIGHT "\n");
871 }
872
help(int exitcode)873 static void help(int exitcode)
874 {
875 version();
876 printf("usage: %s [options] [disk_image]\n\n"
877 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
878 g_get_prgname());
879
880 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
881 if ((arch_mask) & arch_type) \
882 fputs(opt_help, stdout);
883
884 #define ARCHHEADING(text, arch_mask) \
885 if ((arch_mask) & arch_type) \
886 puts(stringify(text));
887
888 #define DEFHEADING(text) ARCHHEADING(text, QEMU_ARCH_ALL)
889
890 #include "qemu-options.def"
891
892 printf("\nDuring emulation, the following keys are useful:\n"
893 "ctrl-alt-f toggle full screen\n"
894 "ctrl-alt-n switch to virtual console 'n'\n"
895 "ctrl-alt-g toggle mouse and keyboard grab\n"
896 "\n"
897 "When using -nographic, press 'ctrl-a h' to get some help.\n"
898 "\n"
899 QEMU_HELP_BOTTOM "\n");
900
901 exit(exitcode);
902 }
903
904 enum {
905
906 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
907 opt_enum,
908 #define DEFHEADING(text)
909 #define ARCHHEADING(text, arch_mask)
910
911 #include "qemu-options.def"
912 };
913
914 #define HAS_ARG 0x0001
915
916 typedef struct QEMUOption {
917 const char *name;
918 int flags;
919 int index;
920 uint32_t arch_mask;
921 } QEMUOption;
922
923 static const QEMUOption qemu_options[] = {
924 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
925
926 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
927 { option, opt_arg, opt_enum, arch_mask },
928 #define DEFHEADING(text)
929 #define ARCHHEADING(text, arch_mask)
930
931 #include "qemu-options.def"
932 { /* end of list */ }
933 };
934
935 typedef struct VGAInterfaceInfo {
936 const char *opt_name; /* option name */
937 const char *name; /* human-readable name */
938 /* Class names indicating that support is available.
939 * If no class is specified, the interface is always available */
940 const char *class_names[2];
941 } VGAInterfaceInfo;
942
943 static const VGAInterfaceInfo vga_interfaces[VGA_TYPE_MAX] = {
944 [VGA_NONE] = {
945 .opt_name = "none",
946 .name = "no graphic card",
947 },
948 [VGA_STD] = {
949 .opt_name = "std",
950 .name = "standard VGA",
951 .class_names = { "VGA", "isa-vga" },
952 },
953 [VGA_CIRRUS] = {
954 .opt_name = "cirrus",
955 .name = "Cirrus VGA",
956 .class_names = { "cirrus-vga", "isa-cirrus-vga" },
957 },
958 [VGA_VMWARE] = {
959 .opt_name = "vmware",
960 .name = "VMWare SVGA",
961 .class_names = { "vmware-svga" },
962 },
963 [VGA_VIRTIO] = {
964 .opt_name = "virtio",
965 .name = "Virtio VGA",
966 .class_names = { "virtio-vga" },
967 },
968 [VGA_QXL] = {
969 .opt_name = "qxl",
970 .name = "QXL VGA",
971 .class_names = { "qxl-vga" },
972 },
973 [VGA_TCX] = {
974 .opt_name = "tcx",
975 .name = "TCX framebuffer",
976 .class_names = { "sun-tcx" },
977 },
978 [VGA_CG3] = {
979 .opt_name = "cg3",
980 .name = "CG3 framebuffer",
981 .class_names = { "cgthree" },
982 },
983 #ifdef CONFIG_XEN_BACKEND
984 [VGA_XENFB] = {
985 .opt_name = "xenfb",
986 .name = "Xen paravirtualized framebuffer",
987 },
988 #endif
989 };
990
vga_interface_available(VGAInterfaceType t)991 static bool vga_interface_available(VGAInterfaceType t)
992 {
993 const VGAInterfaceInfo *ti = &vga_interfaces[t];
994
995 assert(t < VGA_TYPE_MAX);
996 return !ti->class_names[0] ||
997 module_object_class_by_name(ti->class_names[0]) ||
998 module_object_class_by_name(ti->class_names[1]);
999 }
1000
1001 static const char *
get_default_vga_model(const MachineClass * machine_class)1002 get_default_vga_model(const MachineClass *machine_class)
1003 {
1004 if (machine_class->default_display) {
1005 for (int t = 0; t < VGA_TYPE_MAX; t++) {
1006 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1007
1008 if (ti->opt_name && vga_interface_available(t) &&
1009 g_str_equal(ti->opt_name, machine_class->default_display)) {
1010 return machine_class->default_display;
1011 }
1012 }
1013
1014 warn_report_once("Default display '%s' is not available in this binary",
1015 machine_class->default_display);
1016 return NULL;
1017 } else if (vga_interface_available(VGA_CIRRUS)) {
1018 return "cirrus";
1019 } else if (vga_interface_available(VGA_STD)) {
1020 return "std";
1021 }
1022
1023 return NULL;
1024 }
1025
select_vgahw(const MachineClass * machine_class,const char * p)1026 static void select_vgahw(const MachineClass *machine_class, const char *p)
1027 {
1028 const char *opts;
1029 int t;
1030
1031 if (g_str_equal(p, "help")) {
1032 const char *def = get_default_vga_model(machine_class);
1033
1034 for (t = 0; t < VGA_TYPE_MAX; t++) {
1035 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1036
1037 if (vga_interface_available(t) && ti->opt_name) {
1038 printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
1039 (def && g_str_equal(ti->opt_name, def)) ?
1040 " (default)" : "");
1041 }
1042 }
1043 exit(0);
1044 }
1045
1046 assert(vga_interface_type == VGA_NONE);
1047 for (t = 0; t < VGA_TYPE_MAX; t++) {
1048 const VGAInterfaceInfo *ti = &vga_interfaces[t];
1049 if (ti->opt_name && strstart(p, ti->opt_name, &opts)) {
1050 if (!vga_interface_available(t)) {
1051 error_report("%s not available", ti->name);
1052 exit(1);
1053 }
1054 vga_interface_type = t;
1055 break;
1056 }
1057 }
1058 if (t == VGA_TYPE_MAX) {
1059 invalid_vga:
1060 error_report("unknown vga type: %s", p);
1061 exit(1);
1062 }
1063 while (*opts) {
1064 const char *nextopt;
1065
1066 if (strstart(opts, ",retrace=", &nextopt)) {
1067 opts = nextopt;
1068 if (strstart(opts, "dumb", &nextopt))
1069 vga_retrace_method = VGA_RETRACE_DUMB;
1070 else if (strstart(opts, "precise", &nextopt))
1071 vga_retrace_method = VGA_RETRACE_PRECISE;
1072 else goto invalid_vga;
1073 } else goto invalid_vga;
1074 opts = nextopt;
1075 }
1076 }
1077
parse_display_qapi(const char * str)1078 static void parse_display_qapi(const char *str)
1079 {
1080 DisplayOptions *opts;
1081 Visitor *v;
1082
1083 v = qobject_input_visitor_new_str(str, "type", &error_fatal);
1084
1085 visit_type_DisplayOptions(v, NULL, &opts, &error_fatal);
1086 QAPI_CLONE_MEMBERS(DisplayOptions, &dpy, opts);
1087
1088 qapi_free_DisplayOptions(opts);
1089 visit_free(v);
1090 }
1091
qmp_query_display_options(Error ** errp)1092 DisplayOptions *qmp_query_display_options(Error **errp)
1093 {
1094 return QAPI_CLONE(DisplayOptions, &dpy);
1095 }
1096
parse_display(const char * p)1097 static void parse_display(const char *p)
1098 {
1099 if (is_help_option(p)) {
1100 qemu_display_help();
1101 exit(0);
1102 }
1103
1104 #ifdef CONFIG_VNC
1105 const char *opts;
1106
1107 if (strstart(p, "vnc", &opts)) {
1108 /*
1109 * vnc isn't a (local) DisplayType but a protocol for remote
1110 * display access.
1111 */
1112 if (*opts == '=') {
1113 vnc_parse(opts + 1);
1114 display_remote++;
1115 } else {
1116 error_report("VNC requires a display argument vnc=<display>");
1117 exit(1);
1118 }
1119 return;
1120 }
1121 #endif
1122
1123 parse_display_qapi(p);
1124 }
1125
nonempty_str(const char * str)1126 static inline bool nonempty_str(const char *str)
1127 {
1128 return str && *str;
1129 }
1130
parse_fw_cfg(void * opaque,QemuOpts * opts,Error ** errp)1131 static int parse_fw_cfg(void *opaque, QemuOpts *opts, Error **errp)
1132 {
1133 gchar *buf;
1134 size_t size;
1135 const char *name, *file, *str, *gen_id;
1136 FWCfgState *fw_cfg = (FWCfgState *) opaque;
1137
1138 if (fw_cfg == NULL) {
1139 error_setg(errp, "fw_cfg device not available");
1140 return -1;
1141 }
1142 name = qemu_opt_get(opts, "name");
1143 file = qemu_opt_get(opts, "file");
1144 str = qemu_opt_get(opts, "string");
1145 gen_id = qemu_opt_get(opts, "gen_id");
1146
1147 /* we need the name, and exactly one of: file, content string, gen_id */
1148 if (!nonempty_str(name) ||
1149 nonempty_str(file) + nonempty_str(str) + nonempty_str(gen_id) != 1) {
1150 error_setg(errp, "name, plus exactly one of file,"
1151 " string and gen_id, are needed");
1152 return -1;
1153 }
1154 if (strlen(name) > FW_CFG_MAX_FILE_PATH - 1) {
1155 error_setg(errp, "name too long (max. %d char)",
1156 FW_CFG_MAX_FILE_PATH - 1);
1157 return -1;
1158 }
1159 if (nonempty_str(gen_id)) {
1160 /*
1161 * In this particular case where the content is populated
1162 * internally, the "etc/" namespace protection is relaxed,
1163 * so do not emit a warning.
1164 */
1165 } else if (strncmp(name, "opt/", 4) != 0) {
1166 warn_report("externally provided fw_cfg item names "
1167 "should be prefixed with \"opt/\"");
1168 }
1169 if (nonempty_str(str)) {
1170 size = strlen(str); /* NUL terminator NOT included in fw_cfg blob */
1171 buf = g_memdup(str, size);
1172 } else if (nonempty_str(gen_id)) {
1173 if (!fw_cfg_add_from_generator(fw_cfg, name, gen_id, errp)) {
1174 return -1;
1175 }
1176 return 0;
1177 } else {
1178 GError *err = NULL;
1179 if (!g_file_get_contents(file, &buf, &size, &err)) {
1180 error_setg(errp, "can't load %s: %s", file, err->message);
1181 g_error_free(err);
1182 return -1;
1183 }
1184 }
1185 /* For legacy, keep user files in a specific global order. */
1186 fw_cfg_set_order_override(fw_cfg, FW_CFG_ORDER_OVERRIDE_USER);
1187 fw_cfg_add_file(fw_cfg, name, buf, size);
1188 fw_cfg_reset_order_override(fw_cfg);
1189 return 0;
1190 }
1191
device_help_func(void * opaque,QemuOpts * opts,Error ** errp)1192 static int device_help_func(void *opaque, QemuOpts *opts, Error **errp)
1193 {
1194 return qdev_device_help(opts);
1195 }
1196
device_init_func(void * opaque,QemuOpts * opts,Error ** errp)1197 static int device_init_func(void *opaque, QemuOpts *opts, Error **errp)
1198 {
1199 DeviceState *dev;
1200
1201 dev = qdev_device_add(opts, errp);
1202 if (!dev && *errp) {
1203 error_report_err(*errp);
1204 return -1;
1205 } else if (dev) {
1206 object_unref(OBJECT(dev));
1207 }
1208 return 0;
1209 }
1210
chardev_init_func(void * opaque,QemuOpts * opts,Error ** errp)1211 static int chardev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1212 {
1213 Error *local_err = NULL;
1214
1215 if (!qemu_chr_new_from_opts(opts, NULL, &local_err)) {
1216 if (local_err) {
1217 error_propagate(errp, local_err);
1218 return -1;
1219 }
1220 exit(0);
1221 }
1222 return 0;
1223 }
1224
1225 #ifdef CONFIG_VIRTFS
fsdev_init_func(void * opaque,QemuOpts * opts,Error ** errp)1226 static int fsdev_init_func(void *opaque, QemuOpts *opts, Error **errp)
1227 {
1228 return qemu_fsdev_add(opts, errp);
1229 }
1230 #endif
1231
mon_init_func(void * opaque,QemuOpts * opts,Error ** errp)1232 static int mon_init_func(void *opaque, QemuOpts *opts, Error **errp)
1233 {
1234 return monitor_init_opts(opts, errp);
1235 }
1236
monitor_parse(const char * str,const char * mode,bool pretty)1237 static void monitor_parse(const char *str, const char *mode, bool pretty)
1238 {
1239 static int monitor_device_index = 0;
1240 QemuOpts *opts;
1241 const char *p;
1242 char label[32];
1243
1244 if (strstart(str, "chardev:", &p)) {
1245 snprintf(label, sizeof(label), "%s", p);
1246 } else {
1247 snprintf(label, sizeof(label), "compat_monitor%d",
1248 monitor_device_index);
1249 opts = qemu_chr_parse_compat(label, str, true);
1250 if (!opts) {
1251 error_report("parse error: %s", str);
1252 exit(1);
1253 }
1254 }
1255
1256 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, &error_fatal);
1257 qemu_opt_set(opts, "mode", mode, &error_abort);
1258 qemu_opt_set(opts, "chardev", label, &error_abort);
1259 if (!strcmp(mode, "control")) {
1260 qemu_opt_set_bool(opts, "pretty", pretty, &error_abort);
1261 } else {
1262 assert(pretty == false);
1263 }
1264 monitor_device_index++;
1265 }
1266
1267 struct device_config {
1268 enum {
1269 DEV_USB, /* -usbdevice */
1270 DEV_SERIAL, /* -serial */
1271 DEV_PARALLEL, /* -parallel */
1272 DEV_DEBUGCON, /* -debugcon */
1273 DEV_GDB, /* -gdb, -s */
1274 DEV_SCLP, /* s390 sclp */
1275 } type;
1276 const char *cmdline;
1277 Location loc;
1278 QTAILQ_ENTRY(device_config) next;
1279 };
1280
1281 static QTAILQ_HEAD(, device_config) device_configs =
1282 QTAILQ_HEAD_INITIALIZER(device_configs);
1283
add_device_config(int type,const char * cmdline)1284 static void add_device_config(int type, const char *cmdline)
1285 {
1286 struct device_config *conf;
1287
1288 conf = g_malloc0(sizeof(*conf));
1289 conf->type = type;
1290 conf->cmdline = cmdline;
1291 loc_save(&conf->loc);
1292 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1293 }
1294
foreach_device_config(int type,int (* func)(const char * cmdline))1295 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1296 {
1297 struct device_config *conf;
1298 int rc;
1299
1300 QTAILQ_FOREACH(conf, &device_configs, next) {
1301 if (conf->type != type)
1302 continue;
1303 loc_push_restore(&conf->loc);
1304 rc = func(conf->cmdline);
1305 loc_pop(&conf->loc);
1306 if (rc) {
1307 return rc;
1308 }
1309 }
1310 return 0;
1311 }
1312
qemu_disable_default_devices(void)1313 static void qemu_disable_default_devices(void)
1314 {
1315 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1316
1317 default_driver_check_json();
1318 qemu_opts_foreach(qemu_find_opts("device"),
1319 default_driver_check, NULL, NULL);
1320 qemu_opts_foreach(qemu_find_opts("global"),
1321 default_driver_check, NULL, NULL);
1322
1323 if (!vga_model && !default_vga) {
1324 vga_interface_type = VGA_DEVICE;
1325 vga_interface_created = true;
1326 }
1327 if (!has_defaults || machine_class->no_serial) {
1328 default_serial = 0;
1329 }
1330 if (!has_defaults || machine_class->no_parallel) {
1331 default_parallel = 0;
1332 }
1333 if (!has_defaults || machine_class->no_floppy) {
1334 default_floppy = 0;
1335 }
1336 if (!has_defaults || machine_class->no_cdrom) {
1337 default_cdrom = 0;
1338 }
1339 if (!has_defaults || machine_class->no_sdcard) {
1340 default_sdcard = 0;
1341 }
1342 if (!has_defaults) {
1343 default_audio = 0;
1344 default_monitor = 0;
1345 default_net = 0;
1346 default_vga = 0;
1347 } else {
1348 if (default_net && machine_class->default_nic &&
1349 !module_object_class_by_name(machine_class->default_nic)) {
1350 warn_report("Default NIC '%s' is not available in this binary",
1351 machine_class->default_nic);
1352 default_net = 0;
1353 }
1354 }
1355 }
1356
qemu_setup_display(void)1357 static void qemu_setup_display(void)
1358 {
1359 if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
1360 if (!qemu_display_find_default(&dpy)) {
1361 dpy.type = DISPLAY_TYPE_NONE;
1362 #if defined(CONFIG_VNC)
1363 vnc_parse("localhost:0,to=99,id=default");
1364 display_remote++;
1365 #endif
1366 }
1367 }
1368 if (dpy.type == DISPLAY_TYPE_DEFAULT) {
1369 dpy.type = DISPLAY_TYPE_NONE;
1370 }
1371
1372 qemu_display_early_init(&dpy);
1373 }
1374
qemu_create_default_devices(void)1375 static void qemu_create_default_devices(void)
1376 {
1377 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1378 const char *vc = qemu_display_get_vc(&dpy);
1379
1380 if (is_daemonized()) {
1381 /* According to documentation and historically, -nographic redirects
1382 * serial port, parallel port and monitor to stdio, which does not work
1383 * with -daemonize. We can redirect these to null instead, but since
1384 * -nographic is legacy, let's just error out.
1385 * We disallow -nographic only if all other ports are not redirected
1386 * explicitly, to not break existing legacy setups which uses
1387 * -nographic _and_ redirects all ports explicitly - this is valid
1388 * usage, -nographic is just a no-op in this case.
1389 */
1390 if (nographic
1391 && (default_parallel || default_serial || default_monitor)) {
1392 error_report("-nographic cannot be used with -daemonize");
1393 exit(1);
1394 }
1395 }
1396
1397 if (nographic) {
1398 if (default_parallel) {
1399 add_device_config(DEV_PARALLEL, "null");
1400 }
1401 if (default_serial && default_monitor) {
1402 add_device_config(DEV_SERIAL, "mon:stdio");
1403 } else {
1404 if (default_serial) {
1405 add_device_config(DEV_SERIAL, "stdio");
1406 }
1407 if (default_monitor) {
1408 monitor_parse("stdio", "readline", false);
1409 }
1410 }
1411 } else {
1412 if (default_serial) {
1413 add_device_config(DEV_SERIAL, vc ?: "null");
1414 }
1415 if (default_parallel) {
1416 add_device_config(DEV_PARALLEL, vc ?: "null");
1417 }
1418 if (default_monitor && vc) {
1419 monitor_parse(vc, "readline", false);
1420 }
1421 }
1422
1423 if (default_net) {
1424 QemuOptsList *net = qemu_find_opts("net");
1425 qemu_opts_parse(net, "nic", true, &error_abort);
1426 #ifdef CONFIG_SLIRP
1427 qemu_opts_parse(net, "user", true, &error_abort);
1428 #endif
1429 }
1430
1431 /* If no default VGA is requested, the default is "none". */
1432 if (default_vga) {
1433 vga_model = get_default_vga_model(machine_class);
1434 }
1435 if (vga_model) {
1436 select_vgahw(machine_class, vga_model);
1437 }
1438 }
1439
serial_parse(const char * devname)1440 static int serial_parse(const char *devname)
1441 {
1442 int index = num_serial_hds;
1443
1444 serial_hds = g_renew(Chardev *, serial_hds, index + 1);
1445
1446 if (strcmp(devname, "none") == 0) {
1447 /* Don't allocate a serial device for this index */
1448 serial_hds[index] = NULL;
1449 } else {
1450 char label[32];
1451 snprintf(label, sizeof(label), "serial%d", index);
1452
1453 serial_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1454 if (!serial_hds[index]) {
1455 error_report("could not connect serial device"
1456 " to character backend '%s'", devname);
1457 return -1;
1458 }
1459 }
1460 num_serial_hds++;
1461 return 0;
1462 }
1463
serial_hd(int i)1464 Chardev *serial_hd(int i)
1465 {
1466 assert(i >= 0);
1467 if (i < num_serial_hds) {
1468 return serial_hds[i];
1469 }
1470 return NULL;
1471 }
1472
parallel_parse(const char * devname)1473 static int parallel_parse(const char *devname)
1474 {
1475 static int index = 0;
1476 char label[32];
1477
1478 if (strcmp(devname, "none") == 0)
1479 return 0;
1480 if (index == MAX_PARALLEL_PORTS) {
1481 error_report("too many parallel ports");
1482 exit(1);
1483 }
1484 snprintf(label, sizeof(label), "parallel%d", index);
1485 parallel_hds[index] = qemu_chr_new_mux_mon(label, devname, NULL);
1486 if (!parallel_hds[index]) {
1487 error_report("could not connect parallel device"
1488 " to character backend '%s'", devname);
1489 return -1;
1490 }
1491 index++;
1492 return 0;
1493 }
1494
debugcon_parse(const char * devname)1495 static int debugcon_parse(const char *devname)
1496 {
1497 QemuOpts *opts;
1498
1499 if (!qemu_chr_new_mux_mon("debugcon", devname, NULL)) {
1500 error_report("invalid character backend '%s'", devname);
1501 exit(1);
1502 }
1503 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
1504 if (!opts) {
1505 error_report("already have a debugcon device");
1506 exit(1);
1507 }
1508 qemu_opt_set(opts, "driver", "isa-debugcon", &error_abort);
1509 qemu_opt_set(opts, "chardev", "debugcon", &error_abort);
1510 return 0;
1511 }
1512
machine_class_cmp(gconstpointer a,gconstpointer b)1513 static gint machine_class_cmp(gconstpointer a, gconstpointer b)
1514 {
1515 const MachineClass *mc1 = a, *mc2 = b;
1516 int res;
1517
1518 if (mc1->family == NULL) {
1519 if (mc2->family == NULL) {
1520 /* Compare standalone machine types against each other; they sort
1521 * in increasing order.
1522 */
1523 return strcmp(object_class_get_name(OBJECT_CLASS(mc1)),
1524 object_class_get_name(OBJECT_CLASS(mc2)));
1525 }
1526
1527 /* Standalone machine types sort after families. */
1528 return 1;
1529 }
1530
1531 if (mc2->family == NULL) {
1532 /* Families sort before standalone machine types. */
1533 return -1;
1534 }
1535
1536 /* Families sort between each other alphabetically increasingly. */
1537 res = strcmp(mc1->family, mc2->family);
1538 if (res != 0) {
1539 return res;
1540 }
1541
1542 /* Within the same family, machine types sort in decreasing order. */
1543 return strcmp(object_class_get_name(OBJECT_CLASS(mc2)),
1544 object_class_get_name(OBJECT_CLASS(mc1)));
1545 }
1546
machine_help_func(const QDict * qdict)1547 static void machine_help_func(const QDict *qdict)
1548 {
1549 g_autoptr(GSList) machines = NULL;
1550 GSList *el;
1551 const char *type = qdict_get_try_str(qdict, "type");
1552
1553 machines = object_class_get_list(TYPE_MACHINE, false);
1554 if (type) {
1555 ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
1556 if (machine_class) {
1557 type_print_class_properties(object_class_get_name(machine_class));
1558 return;
1559 }
1560 }
1561
1562 printf("Supported machines are:\n");
1563 machines = g_slist_sort(machines, machine_class_cmp);
1564 for (el = machines; el; el = el->next) {
1565 MachineClass *mc = el->data;
1566 if (mc->alias) {
1567 printf("%-20s %s (alias of %s)\n", mc->alias, mc->desc, mc->name);
1568 }
1569 printf("%-20s %s%s%s\n", mc->name, mc->desc,
1570 mc->is_default ? " (default)" : "",
1571 mc->deprecation_reason ? " (deprecated)" : "");
1572 }
1573 }
1574
1575 static void
machine_merge_property(const char * propname,QDict * prop,Error ** errp)1576 machine_merge_property(const char *propname, QDict *prop, Error **errp)
1577 {
1578 QDict *opts;
1579
1580 opts = qdict_new();
1581 /* Preserve the caller's reference to prop. */
1582 qobject_ref(prop);
1583 qdict_put(opts, propname, prop);
1584 keyval_merge(machine_opts_dict, opts, errp);
1585 qobject_unref(opts);
1586 }
1587
1588 static void
machine_parse_property_opt(QemuOptsList * opts_list,const char * propname,const char * arg)1589 machine_parse_property_opt(QemuOptsList *opts_list, const char *propname,
1590 const char *arg)
1591 {
1592 QDict *prop = NULL;
1593 bool help = false;
1594
1595 prop = keyval_parse(arg, opts_list->implied_opt_name, &help, &error_fatal);
1596 if (help) {
1597 qemu_opts_print_help(opts_list, true);
1598 exit(0);
1599 }
1600 machine_merge_property(propname, prop, &error_fatal);
1601 qobject_unref(prop);
1602 }
1603
1604 static const char *pid_file;
1605 struct UnlinkPidfileNotifier {
1606 Notifier notifier;
1607 char *pid_file_realpath;
1608 };
1609 static struct UnlinkPidfileNotifier qemu_unlink_pidfile_notifier;
1610
qemu_unlink_pidfile(Notifier * n,void * data)1611 static void qemu_unlink_pidfile(Notifier *n, void *data)
1612 {
1613 struct UnlinkPidfileNotifier *upn;
1614
1615 upn = DO_UPCAST(struct UnlinkPidfileNotifier, notifier, n);
1616 unlink(upn->pid_file_realpath);
1617 }
1618
lookup_opt(int argc,char ** argv,const char ** poptarg,int * poptind)1619 static const QEMUOption *lookup_opt(int argc, char **argv,
1620 const char **poptarg, int *poptind)
1621 {
1622 const QEMUOption *popt;
1623 int optind = *poptind;
1624 char *r = argv[optind];
1625 const char *optarg;
1626
1627 loc_set_cmdline(argv, optind, 1);
1628 optind++;
1629 /* Treat --foo the same as -foo. */
1630 if (r[1] == '-')
1631 r++;
1632 popt = qemu_options;
1633 for(;;) {
1634 if (!popt->name) {
1635 error_report("invalid option");
1636 exit(1);
1637 }
1638 if (!strcmp(popt->name, r + 1))
1639 break;
1640 popt++;
1641 }
1642 if (popt->flags & HAS_ARG) {
1643 if (optind >= argc) {
1644 error_report("requires an argument");
1645 exit(1);
1646 }
1647 optarg = argv[optind++];
1648 loc_set_cmdline(argv, optind - 2, 2);
1649 } else {
1650 optarg = NULL;
1651 }
1652
1653 *poptarg = optarg;
1654 *poptind = optind;
1655
1656 return popt;
1657 }
1658
select_machine(QDict * qdict,Error ** errp)1659 static MachineClass *select_machine(QDict *qdict, Error **errp)
1660 {
1661 const char *machine_type = qdict_get_try_str(qdict, "type");
1662 GSList *machines = object_class_get_list(TYPE_MACHINE, false);
1663 MachineClass *machine_class;
1664 Error *local_err = NULL;
1665
1666 if (machine_type) {
1667 machine_class = find_machine(machine_type, machines);
1668 qdict_del(qdict, "type");
1669 if (!machine_class) {
1670 error_setg(&local_err, "unsupported machine type");
1671 }
1672 } else {
1673 machine_class = find_default_machine(machines);
1674 if (!machine_class) {
1675 error_setg(&local_err, "No machine specified, and there is no default");
1676 }
1677 }
1678
1679 g_slist_free(machines);
1680 if (local_err) {
1681 error_append_hint(&local_err, "Use -machine help to list supported machines\n");
1682 error_propagate(errp, local_err);
1683 }
1684 return machine_class;
1685 }
1686
object_parse_property_opt(Object * obj,const char * name,const char * value,const char * skip,Error ** errp)1687 static int object_parse_property_opt(Object *obj,
1688 const char *name, const char *value,
1689 const char *skip, Error **errp)
1690 {
1691 if (g_str_equal(name, skip)) {
1692 return 0;
1693 }
1694
1695 if (!object_property_parse(obj, name, value, errp)) {
1696 return -1;
1697 }
1698
1699 return 0;
1700 }
1701
1702 /* *Non*recursively replace underscores with dashes in QDict keys. */
keyval_dashify(QDict * qdict,Error ** errp)1703 static void keyval_dashify(QDict *qdict, Error **errp)
1704 {
1705 const QDictEntry *ent, *next;
1706 char *p;
1707
1708 for (ent = qdict_first(qdict); ent; ent = next) {
1709 g_autofree char *new_key = NULL;
1710
1711 next = qdict_next(qdict, ent);
1712 if (!strchr(ent->key, '_')) {
1713 continue;
1714 }
1715 new_key = g_strdup(ent->key);
1716 for (p = new_key; *p; p++) {
1717 if (*p == '_') {
1718 *p = '-';
1719 }
1720 }
1721 if (qdict_haskey(qdict, new_key)) {
1722 error_setg(errp, "Conflict between '%s' and '%s'", ent->key, new_key);
1723 return;
1724 }
1725 qobject_ref(ent->value);
1726 qdict_put_obj(qdict, new_key, ent->value);
1727 qdict_del(qdict, ent->key);
1728 }
1729 }
1730
qemu_apply_legacy_machine_options(QDict * qdict)1731 static void qemu_apply_legacy_machine_options(QDict *qdict)
1732 {
1733 const char *value;
1734 QObject *prop;
1735
1736 keyval_dashify(qdict, &error_fatal);
1737
1738 /* Legacy options do not correspond to MachineState properties. */
1739 value = qdict_get_try_str(qdict, "accel");
1740 if (value) {
1741 accelerators = g_strdup(value);
1742 qdict_del(qdict, "accel");
1743 }
1744
1745 value = qdict_get_try_str(qdict, "igd-passthru");
1746 if (value) {
1747 object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru", value,
1748 false);
1749 qdict_del(qdict, "igd-passthru");
1750 }
1751
1752 value = qdict_get_try_str(qdict, "kvm-shadow-mem");
1753 if (value) {
1754 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-mem", value,
1755 false);
1756 qdict_del(qdict, "kvm-shadow-mem");
1757 }
1758
1759 value = qdict_get_try_str(qdict, "kernel-irqchip");
1760 if (value) {
1761 object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchip", value,
1762 false);
1763 object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqchip", value,
1764 false);
1765 qdict_del(qdict, "kernel-irqchip");
1766 }
1767
1768 value = qdict_get_try_str(qdict, "memory-backend");
1769 if (value) {
1770 if (mem_path) {
1771 error_report("'-mem-path' can't be used together with"
1772 "'-machine memory-backend'");
1773 exit(EXIT_FAILURE);
1774 }
1775
1776 /* Resolved later. */
1777 ram_memdev_id = g_strdup(value);
1778 qdict_del(qdict, "memory-backend");
1779 }
1780
1781 prop = qdict_get(qdict, "memory");
1782 if (prop) {
1783 have_custom_ram_size =
1784 qobject_type(prop) == QTYPE_QDICT &&
1785 qdict_haskey(qobject_to(QDict, prop), "size");
1786 }
1787 }
1788
object_option_foreach_add(bool (* type_opt_predicate)(const char *))1789 static void object_option_foreach_add(bool (*type_opt_predicate)(const char *))
1790 {
1791 ObjectOption *opt, *next;
1792
1793 QTAILQ_FOREACH_SAFE(opt, &object_opts, next, next) {
1794 const char *type = ObjectType_str(opt->opts->qom_type);
1795 if (type_opt_predicate(type)) {
1796 user_creatable_add_qapi(opt->opts, &error_fatal);
1797 qapi_free_ObjectOptions(opt->opts);
1798 QTAILQ_REMOVE(&object_opts, opt, next);
1799 g_free(opt);
1800 }
1801 }
1802 }
1803
object_option_add_visitor(Visitor * v)1804 static void object_option_add_visitor(Visitor *v)
1805 {
1806 ObjectOption *opt = g_new0(ObjectOption, 1);
1807 visit_type_ObjectOptions(v, NULL, &opt->opts, &error_fatal);
1808 QTAILQ_INSERT_TAIL(&object_opts, opt, next);
1809 }
1810
object_option_parse(const char * str)1811 static void object_option_parse(const char *str)
1812 {
1813 QemuOpts *opts;
1814 const char *type;
1815 Visitor *v;
1816
1817 if (str[0] == '{') {
1818 QObject *obj = qobject_from_json(str, &error_fatal);
1819
1820 v = qobject_input_visitor_new(obj);
1821 qobject_unref(obj);
1822 } else {
1823 opts = qemu_opts_parse_noisily(qemu_find_opts("object"),
1824 str, true);
1825 if (!opts) {
1826 exit(1);
1827 }
1828
1829 type = qemu_opt_get(opts, "qom-type");
1830 if (!type) {
1831 error_setg(&error_fatal, QERR_MISSING_PARAMETER, "qom-type");
1832 }
1833 if (user_creatable_print_help(type, opts)) {
1834 exit(0);
1835 }
1836
1837 v = opts_visitor_new(opts);
1838 }
1839
1840 object_option_add_visitor(v);
1841 visit_free(v);
1842 }
1843
1844 /*
1845 * Very early object creation, before the sandbox options have been activated.
1846 */
object_create_pre_sandbox(const char * type)1847 static bool object_create_pre_sandbox(const char *type)
1848 {
1849 /*
1850 * Objects should in general not get initialized "too early" without
1851 * a reason. If you add one, state the reason in a comment!
1852 */
1853
1854 /*
1855 * Reason: -sandbox on,resourcecontrol=deny disallows setting CPU
1856 * affinity of threads.
1857 */
1858 if (g_str_equal(type, "thread-context")) {
1859 return true;
1860 }
1861
1862 return false;
1863 }
1864
1865 /*
1866 * Initial object creation happens before all other
1867 * QEMU data types are created. The majority of objects
1868 * can be created at this point. The rng-egd object
1869 * cannot be created here, as it depends on the chardev
1870 * already existing.
1871 */
object_create_early(const char * type)1872 static bool object_create_early(const char *type)
1873 {
1874 /*
1875 * Objects should not be made "delayed" without a reason. If you
1876 * add one, state the reason in a comment!
1877 */
1878
1879 /* Reason: already created. */
1880 if (object_create_pre_sandbox(type)) {
1881 return false;
1882 }
1883
1884 /* Reason: property "chardev" */
1885 if (g_str_equal(type, "rng-egd") ||
1886 g_str_equal(type, "qtest")) {
1887 return false;
1888 }
1889
1890 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1891 /* Reason: cryptodev-vhost-user property "chardev" */
1892 if (g_str_equal(type, "cryptodev-vhost-user")) {
1893 return false;
1894 }
1895 #endif
1896
1897 /* Reason: vhost-user-blk-server property "node-name" */
1898 if (g_str_equal(type, "vhost-user-blk-server")) {
1899 return false;
1900 }
1901 /*
1902 * Reason: filter-* property "netdev" etc.
1903 */
1904 if (g_str_equal(type, "filter-buffer") ||
1905 g_str_equal(type, "filter-dump") ||
1906 g_str_equal(type, "filter-mirror") ||
1907 g_str_equal(type, "filter-redirector") ||
1908 g_str_equal(type, "colo-compare") ||
1909 g_str_equal(type, "filter-rewriter") ||
1910 g_str_equal(type, "filter-replay")) {
1911 return false;
1912 }
1913
1914 /*
1915 * Allocation of large amounts of memory may delay
1916 * chardev initialization for too long, and trigger timeouts
1917 * on software that waits for a monitor socket to be created
1918 * (e.g. libvirt).
1919 */
1920 if (g_str_has_prefix(type, "memory-backend-")) {
1921 return false;
1922 }
1923
1924 return true;
1925 }
1926
qemu_apply_machine_options(QDict * qdict)1927 static void qemu_apply_machine_options(QDict *qdict)
1928 {
1929 object_set_properties_from_keyval(OBJECT(current_machine), qdict, false, &error_fatal);
1930
1931 if (semihosting_enabled(false) && !semihosting_get_argc()) {
1932 /* fall back to the -kernel/-append */
1933 semihosting_arg_fallback(current_machine->kernel_filename, current_machine->kernel_cmdline);
1934 }
1935
1936 if (current_machine->smp.cpus > 1) {
1937 replay_add_blocker("smp");
1938 }
1939 }
1940
qemu_create_early_backends(void)1941 static void qemu_create_early_backends(void)
1942 {
1943 MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
1944 #if defined(CONFIG_SDL)
1945 const bool use_sdl = (dpy.type == DISPLAY_TYPE_SDL);
1946 #else
1947 const bool use_sdl = false;
1948 #endif
1949 #if defined(CONFIG_GTK)
1950 const bool use_gtk = (dpy.type == DISPLAY_TYPE_GTK);
1951 #else
1952 const bool use_gtk = false;
1953 #endif
1954
1955 if (dpy.has_window_close && !use_gtk && !use_sdl) {
1956 error_report("window-close is only valid for GTK and SDL, "
1957 "ignoring option");
1958 }
1959
1960 qemu_console_early_init();
1961
1962 if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) {
1963 #if defined(CONFIG_OPENGL)
1964 error_report("OpenGL is not supported by the display");
1965 #else
1966 error_report("OpenGL support is disabled");
1967 #endif
1968 exit(1);
1969 }
1970
1971 object_option_foreach_add(object_create_early);
1972
1973 /* spice needs the timers to be initialized by this point */
1974 /* spice must initialize before audio as it changes the default audiodev */
1975 /* spice must initialize before chardevs (for spicevmc and spiceport) */
1976 qemu_spice.init();
1977
1978 qemu_opts_foreach(qemu_find_opts("chardev"),
1979 chardev_init_func, NULL, &error_fatal);
1980
1981 #ifdef CONFIG_VIRTFS
1982 qemu_opts_foreach(qemu_find_opts("fsdev"),
1983 fsdev_init_func, NULL, &error_fatal);
1984 #endif
1985
1986 /*
1987 * Note: we need to create audio and block backends before
1988 * setting machine properties, so they can be referred to.
1989 */
1990 configure_blockdev(&bdo_queue, machine_class, snapshot);
1991 audio_init_audiodevs();
1992 if (default_audio) {
1993 audio_create_default_audiodevs();
1994 }
1995 }
1996
1997
1998 /*
1999 * The remainder of object creation happens after the
2000 * creation of chardev, fsdev, net clients and device data types.
2001 */
object_create_late(const char * type)2002 static bool object_create_late(const char *type)
2003 {
2004 return !object_create_early(type) && !object_create_pre_sandbox(type);
2005 }
2006
qemu_create_late_backends(void)2007 static void qemu_create_late_backends(void)
2008 {
2009 if (qtest_chrdev) {
2010 qtest_server_init(qtest_chrdev, qtest_log, &error_fatal);
2011 }
2012
2013 net_init_clients();
2014
2015 object_option_foreach_add(object_create_late);
2016
2017 if (tpm_init() < 0) {
2018 exit(1);
2019 }
2020
2021 qemu_opts_foreach(qemu_find_opts("mon"),
2022 mon_init_func, NULL, &error_fatal);
2023
2024 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
2025 exit(1);
2026 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
2027 exit(1);
2028 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
2029 exit(1);
2030
2031 /* now chardevs have been created we may have semihosting to connect */
2032 qemu_semihosting_chardev_init();
2033 }
2034
qemu_resolve_machine_memdev(void)2035 static void qemu_resolve_machine_memdev(void)
2036 {
2037 if (ram_memdev_id) {
2038 Object *backend;
2039 ram_addr_t backend_size;
2040
2041 backend = object_resolve_path_type(ram_memdev_id,
2042 TYPE_MEMORY_BACKEND, NULL);
2043 if (!backend) {
2044 error_report("Memory backend '%s' not found", ram_memdev_id);
2045 exit(EXIT_FAILURE);
2046 }
2047 if (!have_custom_ram_size) {
2048 backend_size = object_property_get_uint(backend, "size", &error_abort);
2049 current_machine->ram_size = backend_size;
2050 }
2051 object_property_set_link(OBJECT(current_machine),
2052 "memory-backend", backend, &error_fatal);
2053 }
2054 }
2055
parse_memory_options(void)2056 static void parse_memory_options(void)
2057 {
2058 QemuOpts *opts = qemu_find_opts_singleton("memory");
2059 QDict *dict, *prop;
2060 const char *mem_str;
2061 Location loc;
2062
2063 loc_push_none(&loc);
2064 qemu_opts_loc_restore(opts);
2065
2066 prop = qdict_new();
2067
2068 if (qemu_opt_get_size(opts, "size", 0) != 0) {
2069 /* Fix up legacy suffix-less format */
2070 mem_str = qemu_opt_get(opts, "size");
2071 if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
2072 g_autofree char *mib_str = g_strdup_printf("%sM", mem_str);
2073 qdict_put_str(prop, "size", mib_str);
2074 } else {
2075 qdict_put_str(prop, "size", mem_str);
2076 }
2077 }
2078
2079 if (qemu_opt_get(opts, "maxmem")) {
2080 qdict_put_str(prop, "max-size", qemu_opt_get(opts, "maxmem"));
2081 }
2082 if (qemu_opt_get(opts, "slots")) {
2083 qdict_put_str(prop, "slots", qemu_opt_get(opts, "slots"));
2084 }
2085
2086 dict = qdict_new();
2087 qdict_put(dict, "memory", prop);
2088 keyval_merge(machine_opts_dict, dict, &error_fatal);
2089 qobject_unref(dict);
2090 loc_pop(&loc);
2091 }
2092
qemu_create_machine(QDict * qdict)2093 static void qemu_create_machine(QDict *qdict)
2094 {
2095 MachineClass *machine_class = select_machine(qdict, &error_fatal);
2096 object_set_machine_compat_props(machine_class->compat_props);
2097
2098 current_machine = MACHINE(object_new_with_class(OBJECT_CLASS(machine_class)));
2099 object_property_add_child(object_get_root(), "machine",
2100 OBJECT(current_machine));
2101 object_property_add_child(container_get(OBJECT(current_machine),
2102 "/unattached"),
2103 "sysbus", OBJECT(sysbus_get_default()));
2104
2105 if (machine_class->minimum_page_bits) {
2106 if (!set_preferred_target_page_bits(machine_class->minimum_page_bits)) {
2107 /* This would be a board error: specifying a minimum smaller than
2108 * a target's compile-time fixed setting.
2109 */
2110 g_assert_not_reached();
2111 }
2112 }
2113
2114 cpu_exec_init_all();
2115 page_size_init();
2116
2117 if (machine_class->hw_version) {
2118 qemu_set_hw_version(machine_class->hw_version);
2119 }
2120
2121 /*
2122 * Get the default machine options from the machine if it is not already
2123 * specified either by the configuration file or by the command line.
2124 */
2125 if (machine_class->default_machine_opts) {
2126 QDict *default_opts =
2127 keyval_parse(machine_class->default_machine_opts, NULL, NULL,
2128 &error_abort);
2129 qemu_apply_legacy_machine_options(default_opts);
2130 object_set_properties_from_keyval(OBJECT(current_machine), default_opts,
2131 false, &error_abort);
2132 qobject_unref(default_opts);
2133 }
2134 }
2135
global_init_func(void * opaque,QemuOpts * opts,Error ** errp)2136 static int global_init_func(void *opaque, QemuOpts *opts, Error **errp)
2137 {
2138 GlobalProperty *g;
2139
2140 g = g_malloc0(sizeof(*g));
2141 g->driver = qemu_opt_get(opts, "driver");
2142 g->property = qemu_opt_get(opts, "property");
2143 g->value = qemu_opt_get(opts, "value");
2144 qdev_prop_register_global(g);
2145 return 0;
2146 }
2147
2148 /*
2149 * Return whether configuration group @group is stored in QemuOpts, or
2150 * recorded as one or more QDicts by qemu_record_config_group.
2151 */
is_qemuopts_group(const char * group)2152 static bool is_qemuopts_group(const char *group)
2153 {
2154 if (g_str_equal(group, "object") ||
2155 g_str_equal(group, "audiodev") ||
2156 g_str_equal(group, "machine") ||
2157 g_str_equal(group, "smp-opts") ||
2158 g_str_equal(group, "boot-opts")) {
2159 return false;
2160 }
2161 return true;
2162 }
2163
qemu_record_config_group(const char * group,QDict * dict,bool from_json,Error ** errp)2164 static void qemu_record_config_group(const char *group, QDict *dict,
2165 bool from_json, Error **errp)
2166 {
2167 if (g_str_equal(group, "object")) {
2168 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2169 object_option_add_visitor(v);
2170 visit_free(v);
2171
2172 } else if (g_str_equal(group, "audiodev")) {
2173 Audiodev *dev = NULL;
2174 Visitor *v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2175 if (visit_type_Audiodev(v, NULL, &dev, errp)) {
2176 audio_define(dev);
2177 }
2178 visit_free(v);
2179
2180 } else if (g_str_equal(group, "machine")) {
2181 /*
2182 * Cannot merge string-valued and type-safe dictionaries, so JSON
2183 * is not accepted yet for -M.
2184 */
2185 assert(!from_json);
2186 keyval_merge(machine_opts_dict, dict, errp);
2187 } else if (g_str_equal(group, "smp-opts")) {
2188 machine_merge_property("smp", dict, &error_fatal);
2189 } else if (g_str_equal(group, "boot-opts")) {
2190 machine_merge_property("boot", dict, &error_fatal);
2191 } else {
2192 abort();
2193 }
2194 }
2195
2196 /*
2197 * Parse non-QemuOpts config file groups, pass the rest to
2198 * qemu_config_do_parse.
2199 */
qemu_parse_config_group(const char * group,QDict * qdict,void * opaque,Error ** errp)2200 static void qemu_parse_config_group(const char *group, QDict *qdict,
2201 void *opaque, Error **errp)
2202 {
2203 QObject *crumpled;
2204 if (is_qemuopts_group(group)) {
2205 qemu_config_do_parse(group, qdict, opaque, errp);
2206 return;
2207 }
2208
2209 crumpled = qdict_crumple(qdict, errp);
2210 if (!crumpled) {
2211 return;
2212 }
2213 switch (qobject_type(crumpled)) {
2214 case QTYPE_QDICT:
2215 qemu_record_config_group(group, qobject_to(QDict, crumpled), false, errp);
2216 break;
2217 case QTYPE_QLIST:
2218 error_setg(errp, "Lists cannot be at top level of a configuration section");
2219 break;
2220 default:
2221 g_assert_not_reached();
2222 }
2223 qobject_unref(crumpled);
2224 }
2225
qemu_read_default_config_file(Error ** errp)2226 static void qemu_read_default_config_file(Error **errp)
2227 {
2228 ERRP_GUARD();
2229 int ret;
2230 g_autofree char *file = get_relocated_path(CONFIG_QEMU_CONFDIR "/qemu.conf");
2231
2232 ret = qemu_read_config_file(file, qemu_parse_config_group, errp);
2233 if (ret < 0) {
2234 if (ret == -ENOENT) {
2235 error_free(*errp);
2236 *errp = NULL;
2237 }
2238 }
2239 }
2240
qemu_set_option(const char * str,Error ** errp)2241 static void qemu_set_option(const char *str, Error **errp)
2242 {
2243 char group[64], id[64], arg[64];
2244 QemuOptsList *list;
2245 QemuOpts *opts;
2246 int rc, offset;
2247
2248 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
2249 if (rc < 3 || str[offset] != '=') {
2250 error_setg(errp, "can't parse: \"%s\"", str);
2251 return;
2252 }
2253
2254 if (!is_qemuopts_group(group)) {
2255 error_setg(errp, "-set is not supported with %s", group);
2256 } else {
2257 list = qemu_find_opts_err(group, errp);
2258 if (list) {
2259 opts = qemu_opts_find(list, id);
2260 if (!opts) {
2261 error_setg(errp, "there is no %s \"%s\" defined", group, id);
2262 return;
2263 }
2264 qemu_opt_set(opts, arg, str + offset + 1, errp);
2265 }
2266 }
2267 }
2268
user_register_global_props(void)2269 static void user_register_global_props(void)
2270 {
2271 qemu_opts_foreach(qemu_find_opts("global"),
2272 global_init_func, NULL, NULL);
2273 }
2274
do_configure_icount(void * opaque,QemuOpts * opts,Error ** errp)2275 static int do_configure_icount(void *opaque, QemuOpts *opts, Error **errp)
2276 {
2277 icount_configure(opts, errp);
2278 return 0;
2279 }
2280
accelerator_set_property(void * opaque,const char * name,const char * value,Error ** errp)2281 static int accelerator_set_property(void *opaque,
2282 const char *name, const char *value,
2283 Error **errp)
2284 {
2285 return object_parse_property_opt(opaque, name, value, "accel", errp);
2286 }
2287
do_configure_accelerator(void * opaque,QemuOpts * opts,Error ** errp)2288 static int do_configure_accelerator(void *opaque, QemuOpts *opts, Error **errp)
2289 {
2290 bool *p_init_failed = opaque;
2291 const char *acc = qemu_opt_get(opts, "accel");
2292 AccelClass *ac = accel_find(acc);
2293 AccelState *accel;
2294 int ret;
2295 bool qtest_with_kvm;
2296
2297 if (!acc) {
2298 error_setg(errp, QERR_MISSING_PARAMETER, "accel");
2299 goto bad;
2300 }
2301
2302 qtest_with_kvm = g_str_equal(acc, "kvm") && qtest_chrdev != NULL;
2303
2304 if (!ac) {
2305 if (!qtest_with_kvm) {
2306 error_report("invalid accelerator %s", acc);
2307 }
2308 goto bad;
2309 }
2310 accel = ACCEL(object_new_with_class(OBJECT_CLASS(ac)));
2311 object_apply_compat_props(OBJECT(accel));
2312 qemu_opt_foreach(opts, accelerator_set_property,
2313 accel,
2314 &error_fatal);
2315 /*
2316 * If legacy -singlestep option is set, honour it for TCG and
2317 * silently ignore for any other accelerator (which is how this
2318 * option has always behaved).
2319 */
2320 if (opt_one_insn_per_tb) {
2321 /*
2322 * This will always succeed for TCG, and we want to ignore
2323 * the error from trying to set a nonexistent property
2324 * on any other accelerator.
2325 */
2326 object_property_set_bool(OBJECT(accel), "one-insn-per-tb", true, NULL);
2327 }
2328 ret = accel_init_machine(accel, current_machine);
2329 if (ret < 0) {
2330 if (!qtest_with_kvm || ret != -ENOENT) {
2331 error_report("failed to initialize %s: %s", acc, strerror(-ret));
2332 }
2333 goto bad;
2334 }
2335
2336 return 1;
2337
2338 bad:
2339 *p_init_failed = true;
2340 return 0;
2341 }
2342
configure_accelerators(const char * progname)2343 static void configure_accelerators(const char *progname)
2344 {
2345 bool init_failed = false;
2346
2347 qemu_opts_foreach(qemu_find_opts("icount"),
2348 do_configure_icount, NULL, &error_fatal);
2349
2350 if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
2351 char **accel_list, **tmp;
2352
2353 if (accelerators == NULL) {
2354 /* Select the default accelerator */
2355 bool have_tcg = accel_find("tcg");
2356 bool have_kvm = accel_find("kvm");
2357
2358 if (have_tcg && have_kvm) {
2359 if (g_str_has_suffix(progname, "kvm")) {
2360 /* If the program name ends with "kvm", we prefer KVM */
2361 accelerators = "kvm:tcg";
2362 } else {
2363 accelerators = "tcg:kvm";
2364 }
2365 } else if (have_kvm) {
2366 accelerators = "kvm";
2367 } else if (have_tcg) {
2368 accelerators = "tcg";
2369 } else {
2370 error_report("No accelerator selected and"
2371 " no default accelerator available");
2372 exit(1);
2373 }
2374 }
2375 accel_list = g_strsplit(accelerators, ":", 0);
2376
2377 for (tmp = accel_list; *tmp; tmp++) {
2378 /*
2379 * Filter invalid accelerators here, to prevent obscenities
2380 * such as "-machine accel=tcg,,thread=single".
2381 */
2382 if (accel_find(*tmp)) {
2383 qemu_opts_parse_noisily(qemu_find_opts("accel"), *tmp, true);
2384 } else {
2385 init_failed = true;
2386 error_report("invalid accelerator %s", *tmp);
2387 }
2388 }
2389 g_strfreev(accel_list);
2390 } else {
2391 if (accelerators != NULL) {
2392 error_report("The -accel and \"-machine accel=\" options are incompatible");
2393 exit(1);
2394 }
2395 }
2396
2397 if (!qemu_opts_foreach(qemu_find_opts("accel"),
2398 do_configure_accelerator, &init_failed, &error_fatal)) {
2399 if (!init_failed) {
2400 error_report("no accelerator found");
2401 }
2402 exit(1);
2403 }
2404
2405 if (init_failed && !qtest_chrdev) {
2406 error_report("falling back to %s", current_accel_name());
2407 }
2408
2409 if (icount_enabled() && !tcg_enabled()) {
2410 error_report("-icount is not allowed with hardware virtualization");
2411 exit(1);
2412 }
2413 }
2414
qemu_validate_options(const QDict * machine_opts)2415 static void qemu_validate_options(const QDict *machine_opts)
2416 {
2417 const char *kernel_filename = qdict_get_try_str(machine_opts, "kernel");
2418 const char *initrd_filename = qdict_get_try_str(machine_opts, "initrd");
2419 const char *kernel_cmdline = qdict_get_try_str(machine_opts, "append");
2420
2421 if (kernel_filename == NULL) {
2422 if (kernel_cmdline != NULL) {
2423 error_report("-append only allowed with -kernel option");
2424 exit(1);
2425 }
2426
2427 if (initrd_filename != NULL) {
2428 error_report("-initrd only allowed with -kernel option");
2429 exit(1);
2430 }
2431 }
2432
2433 if (loadvm && incoming) {
2434 error_report("'incoming' and 'loadvm' options are mutually exclusive");
2435 exit(EXIT_FAILURE);
2436 }
2437 if (loadvm && preconfig_requested) {
2438 error_report("'preconfig' and 'loadvm' options are "
2439 "mutually exclusive");
2440 exit(EXIT_FAILURE);
2441 }
2442 if (incoming && preconfig_requested && strcmp(incoming, "defer") != 0) {
2443 error_report("'preconfig' supports '-incoming defer' only");
2444 exit(EXIT_FAILURE);
2445 }
2446
2447 #ifdef CONFIG_CURSES
2448 if (is_daemonized() && dpy.type == DISPLAY_TYPE_CURSES) {
2449 error_report("curses display cannot be used with -daemonize");
2450 exit(1);
2451 }
2452 #endif
2453 }
2454
qemu_process_sugar_options(void)2455 static void qemu_process_sugar_options(void)
2456 {
2457 if (mem_prealloc) {
2458 QObject *smp = qdict_get(machine_opts_dict, "smp");
2459 if (smp && qobject_type(smp) == QTYPE_QDICT) {
2460 QObject *cpus = qdict_get(qobject_to(QDict, smp), "cpus");
2461 if (cpus && qobject_type(cpus) == QTYPE_QSTRING) {
2462 const char *val = qstring_get_str(qobject_to(QString, cpus));
2463 object_register_sugar_prop("memory-backend", "prealloc-threads",
2464 val, false);
2465 }
2466 }
2467 object_register_sugar_prop("memory-backend", "prealloc", "on", false);
2468 }
2469 }
2470
2471 /* -action processing */
2472
2473 /*
2474 * Process all the -action parameters parsed from cmdline.
2475 */
process_runstate_actions(void * opaque,QemuOpts * opts,Error ** errp)2476 static int process_runstate_actions(void *opaque, QemuOpts *opts, Error **errp)
2477 {
2478 Error *local_err = NULL;
2479 QDict *qdict = qemu_opts_to_qdict(opts, NULL);
2480 QObject *ret = NULL;
2481 qmp_marshal_set_action(qdict, &ret, &local_err);
2482 qobject_unref(ret);
2483 qobject_unref(qdict);
2484 if (local_err) {
2485 error_propagate(errp, local_err);
2486 return 1;
2487 }
2488 return 0;
2489 }
2490
qemu_process_early_options(void)2491 static void qemu_process_early_options(void)
2492 {
2493 qemu_opts_foreach(qemu_find_opts("name"),
2494 parse_name, NULL, &error_fatal);
2495
2496 object_option_foreach_add(object_create_pre_sandbox);
2497
2498 #ifdef CONFIG_SECCOMP
2499 QemuOptsList *olist = qemu_find_opts_err("sandbox", NULL);
2500 if (olist) {
2501 qemu_opts_foreach(olist, parse_sandbox, NULL, &error_fatal);
2502 }
2503 #endif
2504
2505 if (qemu_opts_foreach(qemu_find_opts("action"),
2506 process_runstate_actions, NULL, &error_fatal)) {
2507 exit(1);
2508 }
2509
2510 #ifndef _WIN32
2511 qemu_opts_foreach(qemu_find_opts("add-fd"),
2512 parse_add_fd, NULL, &error_fatal);
2513
2514 qemu_opts_foreach(qemu_find_opts("add-fd"),
2515 cleanup_add_fd, NULL, &error_fatal);
2516 #endif
2517
2518 /* Open the logfile at this point and set the log mask if necessary. */
2519 {
2520 int mask = 0;
2521 if (log_mask) {
2522 mask = qemu_str_to_log_mask(log_mask);
2523 if (!mask) {
2524 qemu_print_log_usage(stdout);
2525 exit(1);
2526 }
2527 }
2528 qemu_set_log_filename_flags(log_file, mask, &error_fatal);
2529 }
2530
2531 qemu_add_default_firmwarepath();
2532 }
2533
qemu_process_help_options(void)2534 static void qemu_process_help_options(void)
2535 {
2536 /*
2537 * Check for -cpu help and -device help before we call select_machine(),
2538 * which will return an error if the architecture has no default machine
2539 * type and the user did not specify one, so that the user doesn't need
2540 * to say '-cpu help -machine something'.
2541 */
2542 if (cpu_option && is_help_option(cpu_option)) {
2543 list_cpus();
2544 exit(0);
2545 }
2546
2547 if (qemu_opts_foreach(qemu_find_opts("device"),
2548 device_help_func, NULL, NULL)) {
2549 exit(0);
2550 }
2551
2552 /* -L help lists the data directories and exits. */
2553 if (list_data_dirs) {
2554 qemu_list_data_dirs();
2555 exit(0);
2556 }
2557 }
2558
qemu_maybe_daemonize(const char * pid_file)2559 static void qemu_maybe_daemonize(const char *pid_file)
2560 {
2561 Error *err = NULL;
2562
2563 os_daemonize();
2564 rcu_disable_atfork();
2565
2566 if (pid_file) {
2567 char *pid_file_realpath = NULL;
2568
2569 if (!qemu_write_pidfile(pid_file, &err)) {
2570 error_reportf_err(err, "cannot create PID file: ");
2571 exit(1);
2572 }
2573
2574 pid_file_realpath = g_malloc0(PATH_MAX);
2575 if (!realpath(pid_file, pid_file_realpath)) {
2576 if (errno != ENOENT) {
2577 warn_report("not removing PID file on exit: cannot resolve PID "
2578 "file path: %s: %s", pid_file, strerror(errno));
2579 }
2580 return;
2581 }
2582
2583 qemu_unlink_pidfile_notifier = (struct UnlinkPidfileNotifier) {
2584 .notifier = {
2585 .notify = qemu_unlink_pidfile,
2586 },
2587 .pid_file_realpath = pid_file_realpath,
2588 };
2589 qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier.notifier);
2590 }
2591 }
2592
qemu_init_displays(void)2593 static void qemu_init_displays(void)
2594 {
2595 DisplayState *ds;
2596
2597 /* init local displays */
2598 ds = init_displaystate();
2599 qemu_display_init(ds, &dpy);
2600
2601 /* must be after terminal init, SDL library changes signal handlers */
2602 os_setup_signal_handling();
2603
2604 /* init remote displays */
2605 #ifdef CONFIG_VNC
2606 qemu_opts_foreach(qemu_find_opts("vnc"),
2607 vnc_init_func, NULL, &error_fatal);
2608 #endif
2609
2610 if (using_spice) {
2611 qemu_spice.display_init();
2612 }
2613 }
2614
qemu_init_board(void)2615 static void qemu_init_board(void)
2616 {
2617 /* process plugin before CPUs are created, but once -smp has been parsed */
2618 qemu_plugin_load_list(&plugin_list, &error_fatal);
2619
2620 /* From here on we enter MACHINE_PHASE_INITIALIZED. */
2621 machine_run_board_init(current_machine, mem_path, &error_fatal);
2622
2623 drive_check_orphaned();
2624
2625 realtime_init();
2626 }
2627
qemu_create_cli_devices(void)2628 static void qemu_create_cli_devices(void)
2629 {
2630 DeviceOption *opt;
2631
2632 soundhw_init();
2633
2634 qemu_opts_foreach(qemu_find_opts("fw_cfg"),
2635 parse_fw_cfg, fw_cfg_find(), &error_fatal);
2636
2637 /* init USB devices */
2638 if (machine_usb(current_machine)) {
2639 if (foreach_device_config(DEV_USB, usb_parse) < 0)
2640 exit(1);
2641 }
2642
2643 /* init generic devices */
2644 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
2645 qemu_opts_foreach(qemu_find_opts("device"),
2646 device_init_func, NULL, &error_fatal);
2647 QTAILQ_FOREACH(opt, &device_opts, next) {
2648 DeviceState *dev;
2649 loc_push_restore(&opt->loc);
2650 /*
2651 * TODO Eventually we should call qmp_device_add() here to make sure it
2652 * behaves the same, but QMP still has to accept incorrectly typed
2653 * options until libvirt is fixed and we want to be strict on the CLI
2654 * from the start, so call qdev_device_add_from_qdict() directly for
2655 * now.
2656 */
2657 dev = qdev_device_add_from_qdict(opt->opts, true, &error_fatal);
2658 object_unref(OBJECT(dev));
2659 loc_pop(&opt->loc);
2660 }
2661 rom_reset_order_override();
2662 }
2663
qemu_machine_creation_done(void)2664 static void qemu_machine_creation_done(void)
2665 {
2666 MachineState *machine = MACHINE(qdev_get_machine());
2667
2668 /* Did we create any drives that we failed to create a device for? */
2669 drive_check_orphaned();
2670
2671 /* Don't warn about the default network setup that you get if
2672 * no command line -net or -netdev options are specified. There
2673 * are two cases that we would otherwise complain about:
2674 * (1) board doesn't support a NIC but the implicit "-net nic"
2675 * requested one
2676 * (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
2677 * sets up a nic that isn't connected to anything.
2678 */
2679 if (!default_net && (!qtest_enabled() || has_defaults)) {
2680 net_check_clients();
2681 }
2682
2683 qdev_prop_check_globals();
2684
2685 qdev_machine_creation_done();
2686
2687 if (machine->cgs) {
2688 /*
2689 * Verify that Confidential Guest Support has actually been initialized
2690 */
2691 assert(machine->cgs->ready);
2692 }
2693
2694 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
2695 exit(1);
2696 }
2697 if (!vga_interface_created && !default_vga &&
2698 vga_interface_type != VGA_NONE) {
2699 warn_report("A -vga option was passed but this machine "
2700 "type does not use that option; "
2701 "No VGA device has been created");
2702 }
2703 }
2704
qmp_x_exit_preconfig(Error ** errp)2705 void qmp_x_exit_preconfig(Error **errp)
2706 {
2707 if (phase_check(PHASE_MACHINE_INITIALIZED)) {
2708 error_setg(errp, "The command is permitted only before machine initialization");
2709 return;
2710 }
2711
2712 qemu_init_board();
2713 qemu_create_cli_devices();
2714 qemu_machine_creation_done();
2715
2716 if (loadvm) {
2717 load_snapshot(loadvm, NULL, false, NULL, &error_fatal);
2718 }
2719 if (replay_mode != REPLAY_MODE_NONE) {
2720 replay_vmstate_init();
2721 }
2722
2723 if (incoming) {
2724 Error *local_err = NULL;
2725 if (strcmp(incoming, "defer") != 0) {
2726 qmp_migrate_incoming(incoming, false, NULL, &local_err);
2727 if (local_err) {
2728 error_reportf_err(local_err, "-incoming %s: ", incoming);
2729 exit(1);
2730 }
2731 }
2732 } else if (autostart) {
2733 qmp_cont(NULL);
2734 }
2735 }
2736
qemu_init(int argc,char ** argv)2737 void qemu_init(int argc, char **argv)
2738 {
2739 QemuOpts *opts;
2740 QemuOpts *icount_opts = NULL, *accel_opts = NULL;
2741 QemuOptsList *olist;
2742 int optind;
2743 const char *optarg;
2744 MachineClass *machine_class;
2745 bool userconfig = true;
2746 FILE *vmstate_dump_file = NULL;
2747
2748 qemu_add_opts(&qemu_drive_opts);
2749 qemu_add_drive_opts(&qemu_legacy_drive_opts);
2750 qemu_add_drive_opts(&qemu_common_drive_opts);
2751 qemu_add_drive_opts(&qemu_drive_opts);
2752 qemu_add_drive_opts(&bdrv_runtime_opts);
2753 qemu_add_opts(&qemu_chardev_opts);
2754 qemu_add_opts(&qemu_device_opts);
2755 qemu_add_opts(&qemu_netdev_opts);
2756 qemu_add_opts(&qemu_nic_opts);
2757 qemu_add_opts(&qemu_net_opts);
2758 qemu_add_opts(&qemu_rtc_opts);
2759 qemu_add_opts(&qemu_global_opts);
2760 qemu_add_opts(&qemu_mon_opts);
2761 qemu_add_opts(&qemu_trace_opts);
2762 qemu_plugin_add_opts();
2763 qemu_add_opts(&qemu_option_rom_opts);
2764 qemu_add_opts(&qemu_accel_opts);
2765 qemu_add_opts(&qemu_mem_opts);
2766 qemu_add_opts(&qemu_smp_opts);
2767 qemu_add_opts(&qemu_boot_opts);
2768 qemu_add_opts(&qemu_add_fd_opts);
2769 qemu_add_opts(&qemu_object_opts);
2770 qemu_add_opts(&qemu_tpmdev_opts);
2771 qemu_add_opts(&qemu_overcommit_opts);
2772 qemu_add_opts(&qemu_msg_opts);
2773 qemu_add_opts(&qemu_name_opts);
2774 qemu_add_opts(&qemu_numa_opts);
2775 qemu_add_opts(&qemu_icount_opts);
2776 qemu_add_opts(&qemu_semihosting_config_opts);
2777 qemu_add_opts(&qemu_fw_cfg_opts);
2778 qemu_add_opts(&qemu_action_opts);
2779 qemu_add_run_with_opts();
2780 module_call_init(MODULE_INIT_OPTS);
2781
2782 error_init(argv[0]);
2783 qemu_init_exec_dir(argv[0]);
2784
2785 qemu_init_arch_modules();
2786
2787 qemu_init_subsystems();
2788
2789 /* first pass of option parsing */
2790 optind = 1;
2791 while (optind < argc) {
2792 if (argv[optind][0] != '-') {
2793 /* disk image */
2794 optind++;
2795 } else {
2796 const QEMUOption *popt;
2797
2798 popt = lookup_opt(argc, argv, &optarg, &optind);
2799 switch (popt->index) {
2800 case QEMU_OPTION_nouserconfig:
2801 userconfig = false;
2802 break;
2803 }
2804 }
2805 }
2806
2807 machine_opts_dict = qdict_new();
2808 if (userconfig) {
2809 qemu_read_default_config_file(&error_fatal);
2810 }
2811
2812 /* second pass of option parsing */
2813 optind = 1;
2814 for(;;) {
2815 if (optind >= argc)
2816 break;
2817 if (argv[optind][0] != '-') {
2818 loc_set_cmdline(argv, optind, 1);
2819 drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2820 } else {
2821 const QEMUOption *popt;
2822
2823 popt = lookup_opt(argc, argv, &optarg, &optind);
2824 if (!(popt->arch_mask & arch_type)) {
2825 error_report("Option not supported for this target");
2826 exit(1);
2827 }
2828 switch(popt->index) {
2829 case QEMU_OPTION_cpu:
2830 /* hw initialization will check this */
2831 cpu_option = optarg;
2832 break;
2833 case QEMU_OPTION_hda:
2834 case QEMU_OPTION_hdb:
2835 case QEMU_OPTION_hdc:
2836 case QEMU_OPTION_hdd:
2837 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2838 HD_OPTS);
2839 break;
2840 case QEMU_OPTION_blockdev:
2841 {
2842 Visitor *v;
2843 BlockdevOptionsQueueEntry *bdo;
2844
2845 v = qobject_input_visitor_new_str(optarg, "driver",
2846 &error_fatal);
2847
2848 bdo = g_new(BlockdevOptionsQueueEntry, 1);
2849 visit_type_BlockdevOptions(v, NULL, &bdo->bdo,
2850 &error_fatal);
2851 visit_free(v);
2852 loc_save(&bdo->loc);
2853 QSIMPLEQ_INSERT_TAIL(&bdo_queue, bdo, entry);
2854 break;
2855 }
2856 case QEMU_OPTION_drive:
2857 opts = qemu_opts_parse_noisily(qemu_find_opts("drive"),
2858 optarg, false);
2859 if (opts == NULL) {
2860 exit(1);
2861 }
2862 break;
2863 case QEMU_OPTION_set:
2864 qemu_set_option(optarg, &error_fatal);
2865 break;
2866 case QEMU_OPTION_global:
2867 if (qemu_global_option(optarg) != 0)
2868 exit(1);
2869 break;
2870 case QEMU_OPTION_mtdblock:
2871 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2872 break;
2873 case QEMU_OPTION_sd:
2874 drive_add(IF_SD, -1, optarg, SD_OPTS);
2875 break;
2876 case QEMU_OPTION_pflash:
2877 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2878 break;
2879 case QEMU_OPTION_snapshot:
2880 snapshot = 1;
2881 replay_add_blocker("-snapshot");
2882 break;
2883 case QEMU_OPTION_numa:
2884 opts = qemu_opts_parse_noisily(qemu_find_opts("numa"),
2885 optarg, true);
2886 if (!opts) {
2887 exit(1);
2888 }
2889 break;
2890 case QEMU_OPTION_display:
2891 parse_display(optarg);
2892 break;
2893 case QEMU_OPTION_nographic:
2894 qdict_put_str(machine_opts_dict, "graphics", "off");
2895 nographic = true;
2896 dpy.type = DISPLAY_TYPE_NONE;
2897 break;
2898 case QEMU_OPTION_portrait:
2899 graphic_rotate = 90;
2900 break;
2901 case QEMU_OPTION_rotate:
2902 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2903 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2904 graphic_rotate != 180 && graphic_rotate != 270) {
2905 error_report("only 90, 180, 270 deg rotation is available");
2906 exit(1);
2907 }
2908 break;
2909 case QEMU_OPTION_kernel:
2910 qdict_put_str(machine_opts_dict, "kernel", optarg);
2911 break;
2912 case QEMU_OPTION_initrd:
2913 qdict_put_str(machine_opts_dict, "initrd", optarg);
2914 break;
2915 case QEMU_OPTION_append:
2916 qdict_put_str(machine_opts_dict, "append", optarg);
2917 break;
2918 case QEMU_OPTION_dtb:
2919 qdict_put_str(machine_opts_dict, "dtb", optarg);
2920 break;
2921 case QEMU_OPTION_cdrom:
2922 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2923 break;
2924 case QEMU_OPTION_boot:
2925 machine_parse_property_opt(qemu_find_opts("boot-opts"), "boot", optarg);
2926 break;
2927 case QEMU_OPTION_fda:
2928 case QEMU_OPTION_fdb:
2929 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2930 optarg, FD_OPTS);
2931 break;
2932 case QEMU_OPTION_no_fd_bootchk:
2933 fd_bootchk = 0;
2934 break;
2935 case QEMU_OPTION_netdev:
2936 default_net = 0;
2937 if (netdev_is_modern(optarg)) {
2938 netdev_parse_modern(optarg);
2939 } else {
2940 net_client_parse(qemu_find_opts("netdev"), optarg);
2941 }
2942 break;
2943 case QEMU_OPTION_nic:
2944 default_net = 0;
2945 net_client_parse(qemu_find_opts("nic"), optarg);
2946 break;
2947 case QEMU_OPTION_net:
2948 default_net = 0;
2949 net_client_parse(qemu_find_opts("net"), optarg);
2950 break;
2951 #ifdef CONFIG_LIBISCSI
2952 case QEMU_OPTION_iscsi:
2953 opts = qemu_opts_parse_noisily(qemu_find_opts("iscsi"),
2954 optarg, false);
2955 if (!opts) {
2956 exit(1);
2957 }
2958 break;
2959 #endif
2960 case QEMU_OPTION_audiodev:
2961 default_audio = 0;
2962 audio_parse_option(optarg);
2963 break;
2964 case QEMU_OPTION_audio: {
2965 bool help;
2966 char *model = NULL;
2967 Audiodev *dev = NULL;
2968 Visitor *v;
2969 QDict *dict = keyval_parse(optarg, "driver", &help, &error_fatal);
2970 default_audio = 0;
2971 if (help || (qdict_haskey(dict, "driver") &&
2972 is_help_option(qdict_get_str(dict, "driver")))) {
2973 audio_help();
2974 exit(EXIT_SUCCESS);
2975 }
2976 if (!qdict_haskey(dict, "id")) {
2977 qdict_put_str(dict, "id", "audiodev0");
2978 }
2979 if (qdict_haskey(dict, "model")) {
2980 model = g_strdup(qdict_get_str(dict, "model"));
2981 qdict_del(dict, "model");
2982 if (is_help_option(model)) {
2983 show_valid_soundhw();
2984 exit(0);
2985 }
2986 }
2987 v = qobject_input_visitor_new_keyval(QOBJECT(dict));
2988 qobject_unref(dict);
2989 visit_type_Audiodev(v, NULL, &dev, &error_fatal);
2990 visit_free(v);
2991 if (model) {
2992 audio_define(dev);
2993 select_soundhw(model, dev->id);
2994 g_free(model);
2995 } else {
2996 audio_define_default(dev, &error_fatal);
2997 }
2998 break;
2999 }
3000 case QEMU_OPTION_h:
3001 help(0);
3002 break;
3003 case QEMU_OPTION_version:
3004 version();
3005 exit(0);
3006 break;
3007 case QEMU_OPTION_m:
3008 opts = qemu_opts_parse_noisily(qemu_find_opts("memory"), optarg, true);
3009 if (opts == NULL) {
3010 exit(1);
3011 }
3012 break;
3013 #ifdef CONFIG_TPM
3014 case QEMU_OPTION_tpmdev:
3015 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3016 exit(1);
3017 }
3018 break;
3019 #endif
3020 case QEMU_OPTION_mempath:
3021 mem_path = optarg;
3022 break;
3023 case QEMU_OPTION_mem_prealloc:
3024 mem_prealloc = 1;
3025 break;
3026 case QEMU_OPTION_d:
3027 log_mask = optarg;
3028 break;
3029 case QEMU_OPTION_D:
3030 log_file = optarg;
3031 break;
3032 case QEMU_OPTION_DFILTER:
3033 qemu_set_dfilter_ranges(optarg, &error_fatal);
3034 break;
3035 #if defined(CONFIG_TCG) && defined(CONFIG_LINUX)
3036 case QEMU_OPTION_perfmap:
3037 perf_enable_perfmap();
3038 break;
3039 case QEMU_OPTION_jitdump:
3040 perf_enable_jitdump();
3041 break;
3042 #endif
3043 case QEMU_OPTION_seed:
3044 qemu_guest_random_seed_main(optarg, &error_fatal);
3045 break;
3046 case QEMU_OPTION_s:
3047 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3048 break;
3049 case QEMU_OPTION_gdb:
3050 add_device_config(DEV_GDB, optarg);
3051 break;
3052 case QEMU_OPTION_L:
3053 if (is_help_option(optarg)) {
3054 list_data_dirs = true;
3055 } else {
3056 qemu_add_data_dir(g_strdup(optarg));
3057 }
3058 break;
3059 case QEMU_OPTION_bios:
3060 qdict_put_str(machine_opts_dict, "firmware", optarg);
3061 break;
3062 case QEMU_OPTION_singlestep:
3063 opt_one_insn_per_tb = true;
3064 break;
3065 case QEMU_OPTION_S:
3066 autostart = 0;
3067 break;
3068 case QEMU_OPTION_k:
3069 keyboard_layout = optarg;
3070 break;
3071 case QEMU_OPTION_vga:
3072 vga_model = optarg;
3073 default_vga = 0;
3074 break;
3075 case QEMU_OPTION_g:
3076 {
3077 const char *p;
3078 int w, h, depth;
3079 p = optarg;
3080 w = strtol(p, (char **)&p, 10);
3081 if (w <= 0) {
3082 graphic_error:
3083 error_report("invalid resolution or depth");
3084 exit(1);
3085 }
3086 if (*p != 'x')
3087 goto graphic_error;
3088 p++;
3089 h = strtol(p, (char **)&p, 10);
3090 if (h <= 0)
3091 goto graphic_error;
3092 if (*p == 'x') {
3093 p++;
3094 depth = strtol(p, (char **)&p, 10);
3095 if (depth != 1 && depth != 2 && depth != 4 &&
3096 depth != 8 && depth != 15 && depth != 16 &&
3097 depth != 24 && depth != 32)
3098 goto graphic_error;
3099 } else if (*p == '\0') {
3100 depth = graphic_depth;
3101 } else {
3102 goto graphic_error;
3103 }
3104
3105 graphic_width = w;
3106 graphic_height = h;
3107 graphic_depth = depth;
3108 }
3109 break;
3110 case QEMU_OPTION_echr:
3111 {
3112 char *r;
3113 term_escape_char = strtol(optarg, &r, 0);
3114 if (r == optarg)
3115 printf("Bad argument to echr\n");
3116 break;
3117 }
3118 case QEMU_OPTION_monitor:
3119 default_monitor = 0;
3120 if (strncmp(optarg, "none", 4)) {
3121 monitor_parse(optarg, "readline", false);
3122 }
3123 break;
3124 case QEMU_OPTION_qmp:
3125 monitor_parse(optarg, "control", false);
3126 default_monitor = 0;
3127 break;
3128 case QEMU_OPTION_qmp_pretty:
3129 monitor_parse(optarg, "control", true);
3130 default_monitor = 0;
3131 break;
3132 case QEMU_OPTION_mon:
3133 opts = qemu_opts_parse_noisily(qemu_find_opts("mon"), optarg,
3134 true);
3135 if (!opts) {
3136 exit(1);
3137 }
3138 default_monitor = 0;
3139 break;
3140 case QEMU_OPTION_chardev:
3141 opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"),
3142 optarg, true);
3143 if (!opts) {
3144 exit(1);
3145 }
3146 break;
3147 case QEMU_OPTION_fsdev:
3148 olist = qemu_find_opts("fsdev");
3149 if (!olist) {
3150 error_report("fsdev support is disabled");
3151 exit(1);
3152 }
3153 opts = qemu_opts_parse_noisily(olist, optarg, true);
3154 if (!opts) {
3155 exit(1);
3156 }
3157 break;
3158 case QEMU_OPTION_virtfs: {
3159 QemuOpts *fsdev;
3160 QemuOpts *device;
3161 const char *writeout, *sock_fd, *socket, *path, *security_model,
3162 *multidevs;
3163
3164 olist = qemu_find_opts("virtfs");
3165 if (!olist) {
3166 error_report("virtfs support is disabled");
3167 exit(1);
3168 }
3169 opts = qemu_opts_parse_noisily(olist, optarg, true);
3170 if (!opts) {
3171 exit(1);
3172 }
3173
3174 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3175 qemu_opt_get(opts, "mount_tag") == NULL) {
3176 error_report("Usage: -virtfs fsdriver,mount_tag=tag");
3177 exit(1);
3178 }
3179 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3180 qemu_opts_id(opts) ?:
3181 qemu_opt_get(opts, "mount_tag"),
3182 1, NULL);
3183 if (!fsdev) {
3184 error_report("duplicate or invalid fsdev id: %s",
3185 qemu_opt_get(opts, "mount_tag"));
3186 exit(1);
3187 }
3188
3189 writeout = qemu_opt_get(opts, "writeout");
3190 if (writeout) {
3191 #ifdef CONFIG_SYNC_FILE_RANGE
3192 qemu_opt_set(fsdev, "writeout", writeout, &error_abort);
3193 #else
3194 error_report("writeout=immediate not supported "
3195 "on this platform");
3196 exit(1);
3197 #endif
3198 }
3199 qemu_opt_set(fsdev, "fsdriver",
3200 qemu_opt_get(opts, "fsdriver"), &error_abort);
3201 path = qemu_opt_get(opts, "path");
3202 if (path) {
3203 qemu_opt_set(fsdev, "path", path, &error_abort);
3204 }
3205 security_model = qemu_opt_get(opts, "security_model");
3206 if (security_model) {
3207 qemu_opt_set(fsdev, "security_model", security_model,
3208 &error_abort);
3209 }
3210 socket = qemu_opt_get(opts, "socket");
3211 if (socket) {
3212 qemu_opt_set(fsdev, "socket", socket, &error_abort);
3213 }
3214 sock_fd = qemu_opt_get(opts, "sock_fd");
3215 if (sock_fd) {
3216 qemu_opt_set(fsdev, "sock_fd", sock_fd, &error_abort);
3217 }
3218
3219 qemu_opt_set_bool(fsdev, "readonly",
3220 qemu_opt_get_bool(opts, "readonly", 0),
3221 &error_abort);
3222 multidevs = qemu_opt_get(opts, "multidevs");
3223 if (multidevs) {
3224 qemu_opt_set(fsdev, "multidevs", multidevs, &error_abort);
3225 }
3226 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0,
3227 &error_abort);
3228 qemu_opt_set(device, "driver", "virtio-9p-pci", &error_abort);
3229 qemu_opt_set(device, "fsdev",
3230 qemu_opts_id(fsdev), &error_abort);
3231 qemu_opt_set(device, "mount_tag",
3232 qemu_opt_get(opts, "mount_tag"), &error_abort);
3233 break;
3234 }
3235 case QEMU_OPTION_serial:
3236 add_device_config(DEV_SERIAL, optarg);
3237 default_serial = 0;
3238 if (strncmp(optarg, "mon:", 4) == 0) {
3239 default_monitor = 0;
3240 }
3241 break;
3242 case QEMU_OPTION_action:
3243 olist = qemu_find_opts("action");
3244 if (!qemu_opts_parse_noisily(olist, optarg, false)) {
3245 exit(1);
3246 }
3247 break;
3248 case QEMU_OPTION_watchdog_action: {
3249 opts = qemu_opts_create(qemu_find_opts("action"), NULL, 0, &error_abort);
3250 qemu_opt_set(opts, "watchdog", optarg, &error_abort);
3251 break;
3252 }
3253 case QEMU_OPTION_parallel:
3254 add_device_config(DEV_PARALLEL, optarg);
3255 default_parallel = 0;
3256 if (strncmp(optarg, "mon:", 4) == 0) {
3257 default_monitor = 0;
3258 }
3259 break;
3260 case QEMU_OPTION_debugcon:
3261 add_device_config(DEV_DEBUGCON, optarg);
3262 break;
3263 case QEMU_OPTION_loadvm:
3264 loadvm = optarg;
3265 break;
3266 case QEMU_OPTION_full_screen:
3267 dpy.has_full_screen = true;
3268 dpy.full_screen = true;
3269 break;
3270 case QEMU_OPTION_pidfile:
3271 pid_file = optarg;
3272 break;
3273 case QEMU_OPTION_win2k_hack:
3274 win2k_install_hack = 1;
3275 break;
3276 case QEMU_OPTION_acpitable:
3277 opts = qemu_opts_parse_noisily(qemu_find_opts("acpi"),
3278 optarg, true);
3279 if (!opts) {
3280 exit(1);
3281 }
3282 acpi_table_add(opts, &error_fatal);
3283 break;
3284 case QEMU_OPTION_smbios:
3285 opts = qemu_opts_parse_noisily(qemu_find_opts("smbios"),
3286 optarg, false);
3287 if (!opts) {
3288 exit(1);
3289 }
3290 smbios_entry_add(opts, &error_fatal);
3291 break;
3292 case QEMU_OPTION_fwcfg:
3293 opts = qemu_opts_parse_noisily(qemu_find_opts("fw_cfg"),
3294 optarg, true);
3295 if (opts == NULL) {
3296 exit(1);
3297 }
3298 break;
3299 case QEMU_OPTION_preconfig:
3300 preconfig_requested = true;
3301 break;
3302 case QEMU_OPTION_enable_kvm:
3303 qdict_put_str(machine_opts_dict, "accel", "kvm");
3304 break;
3305 case QEMU_OPTION_M:
3306 case QEMU_OPTION_machine:
3307 {
3308 bool help;
3309
3310 keyval_parse_into(machine_opts_dict, optarg, "type", &help, &error_fatal);
3311 if (help) {
3312 machine_help_func(machine_opts_dict);
3313 exit(EXIT_SUCCESS);
3314 }
3315 break;
3316 }
3317 case QEMU_OPTION_accel:
3318 accel_opts = qemu_opts_parse_noisily(qemu_find_opts("accel"),
3319 optarg, true);
3320 optarg = qemu_opt_get(accel_opts, "accel");
3321 if (!optarg || is_help_option(optarg)) {
3322 printf("Accelerators supported in QEMU binary:\n");
3323 GSList *el, *accel_list = object_class_get_list(TYPE_ACCEL,
3324 false);
3325 for (el = accel_list; el; el = el->next) {
3326 gchar *typename = g_strdup(object_class_get_name(
3327 OBJECT_CLASS(el->data)));
3328 /* omit qtest which is used for tests only */
3329 if (g_strcmp0(typename, ACCEL_CLASS_NAME("qtest")) &&
3330 g_str_has_suffix(typename, ACCEL_CLASS_SUFFIX)) {
3331 gchar **optname = g_strsplit(typename,
3332 ACCEL_CLASS_SUFFIX, 0);
3333 printf("%s\n", optname[0]);
3334 g_strfreev(optname);
3335 }
3336 g_free(typename);
3337 }
3338 g_slist_free(accel_list);
3339 exit(0);
3340 }
3341 break;
3342 case QEMU_OPTION_usb:
3343 qdict_put_str(machine_opts_dict, "usb", "on");
3344 break;
3345 case QEMU_OPTION_usbdevice:
3346 qdict_put_str(machine_opts_dict, "usb", "on");
3347 add_device_config(DEV_USB, optarg);
3348 break;
3349 case QEMU_OPTION_device:
3350 if (optarg[0] == '{') {
3351 QObject *obj = qobject_from_json(optarg, &error_fatal);
3352 DeviceOption *opt = g_new0(DeviceOption, 1);
3353 opt->opts = qobject_to(QDict, obj);
3354 loc_save(&opt->loc);
3355 assert(opt->opts != NULL);
3356 QTAILQ_INSERT_TAIL(&device_opts, opt, next);
3357 } else {
3358 if (!qemu_opts_parse_noisily(qemu_find_opts("device"),
3359 optarg, true)) {
3360 exit(1);
3361 }
3362 }
3363 break;
3364 case QEMU_OPTION_smp:
3365 machine_parse_property_opt(qemu_find_opts("smp-opts"),
3366 "smp", optarg);
3367 break;
3368 #ifdef CONFIG_VNC
3369 case QEMU_OPTION_vnc:
3370 vnc_parse(optarg);
3371 display_remote++;
3372 break;
3373 #endif
3374 case QEMU_OPTION_no_acpi:
3375 warn_report("-no-acpi is deprecated, use '-machine acpi=off' instead");
3376 qdict_put_str(machine_opts_dict, "acpi", "off");
3377 break;
3378 case QEMU_OPTION_no_hpet:
3379 warn_report("-no-hpet is deprecated, use '-machine hpet=off' instead");
3380 qdict_put_str(machine_opts_dict, "hpet", "off");
3381 break;
3382 case QEMU_OPTION_no_reboot:
3383 olist = qemu_find_opts("action");
3384 qemu_opts_parse_noisily(olist, "reboot=shutdown", false);
3385 break;
3386 case QEMU_OPTION_no_shutdown:
3387 olist = qemu_find_opts("action");
3388 qemu_opts_parse_noisily(olist, "shutdown=pause", false);
3389 break;
3390 case QEMU_OPTION_uuid:
3391 if (qemu_uuid_parse(optarg, &qemu_uuid) < 0) {
3392 error_report("failed to parse UUID string: wrong format");
3393 exit(1);
3394 }
3395 qemu_uuid_set = true;
3396 break;
3397 case QEMU_OPTION_option_rom:
3398 if (nb_option_roms >= MAX_OPTION_ROMS) {
3399 error_report("too many option ROMs");
3400 exit(1);
3401 }
3402 opts = qemu_opts_parse_noisily(qemu_find_opts("option-rom"),
3403 optarg, true);
3404 if (!opts) {
3405 exit(1);
3406 }
3407 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3408 option_rom[nb_option_roms].bootindex =
3409 qemu_opt_get_number(opts, "bootindex", -1);
3410 if (!option_rom[nb_option_roms].name) {
3411 error_report("Option ROM file is not specified");
3412 exit(1);
3413 }
3414 nb_option_roms++;
3415 break;
3416 case QEMU_OPTION_semihosting:
3417 qemu_semihosting_enable();
3418 break;
3419 case QEMU_OPTION_semihosting_config:
3420 if (qemu_semihosting_config_options(optarg) != 0) {
3421 exit(1);
3422 }
3423 break;
3424 case QEMU_OPTION_name:
3425 opts = qemu_opts_parse_noisily(qemu_find_opts("name"),
3426 optarg, true);
3427 if (!opts) {
3428 exit(1);
3429 }
3430 /* Capture guest name if -msg guest-name is used later */
3431 error_guest_name = qemu_opt_get(opts, "guest");
3432 break;
3433 case QEMU_OPTION_prom_env:
3434 if (nb_prom_envs >= MAX_PROM_ENVS) {
3435 error_report("too many prom variables");
3436 exit(1);
3437 }
3438 prom_envs[nb_prom_envs] = optarg;
3439 nb_prom_envs++;
3440 break;
3441 case QEMU_OPTION_old_param:
3442 old_param = 1;
3443 break;
3444 case QEMU_OPTION_rtc:
3445 opts = qemu_opts_parse_noisily(qemu_find_opts("rtc"), optarg,
3446 false);
3447 if (!opts) {
3448 exit(1);
3449 }
3450 break;
3451 case QEMU_OPTION_icount:
3452 icount_opts = qemu_opts_parse_noisily(qemu_find_opts("icount"),
3453 optarg, true);
3454 if (!icount_opts) {
3455 exit(1);
3456 }
3457 break;
3458 case QEMU_OPTION_incoming:
3459 if (!incoming) {
3460 runstate_set(RUN_STATE_INMIGRATE);
3461 }
3462 incoming = optarg;
3463 break;
3464 case QEMU_OPTION_only_migratable:
3465 only_migratable = 1;
3466 break;
3467 case QEMU_OPTION_nodefaults:
3468 has_defaults = 0;
3469 break;
3470 case QEMU_OPTION_xen_domid:
3471 if (!(accel_find("xen")) && !(accel_find("kvm"))) {
3472 error_report("Option not supported for this target");
3473 exit(1);
3474 }
3475 xen_domid = atoi(optarg);
3476 break;
3477 case QEMU_OPTION_xen_attach:
3478 if (!(accel_find("xen"))) {
3479 error_report("Option not supported for this target");
3480 exit(1);
3481 }
3482 xen_mode = XEN_ATTACH;
3483 break;
3484 case QEMU_OPTION_xen_domid_restrict:
3485 if (!(accel_find("xen"))) {
3486 error_report("Option not supported for this target");
3487 exit(1);
3488 }
3489 xen_domid_restrict = true;
3490 break;
3491 case QEMU_OPTION_trace:
3492 trace_opt_parse(optarg);
3493 break;
3494 case QEMU_OPTION_plugin:
3495 qemu_plugin_opt_parse(optarg, &plugin_list);
3496 break;
3497 case QEMU_OPTION_readconfig:
3498 qemu_read_config_file(optarg, qemu_parse_config_group, &error_fatal);
3499 break;
3500 #ifdef CONFIG_SPICE
3501 case QEMU_OPTION_spice:
3502 opts = qemu_opts_parse_noisily(qemu_find_opts("spice"), optarg, false);
3503 if (!opts) {
3504 exit(1);
3505 }
3506 display_remote++;
3507 break;
3508 #endif
3509 case QEMU_OPTION_qtest:
3510 qtest_chrdev = optarg;
3511 break;
3512 case QEMU_OPTION_qtest_log:
3513 qtest_log = optarg;
3514 break;
3515 case QEMU_OPTION_sandbox:
3516 olist = qemu_find_opts("sandbox");
3517 if (!olist) {
3518 #ifndef CONFIG_SECCOMP
3519 error_report("-sandbox support is not enabled "
3520 "in this QEMU binary");
3521 #endif
3522 exit(1);
3523 }
3524
3525 opts = qemu_opts_parse_noisily(olist, optarg, true);
3526 if (!opts) {
3527 exit(1);
3528 }
3529 break;
3530 case QEMU_OPTION_add_fd:
3531 #ifndef _WIN32
3532 opts = qemu_opts_parse_noisily(qemu_find_opts("add-fd"),
3533 optarg, false);
3534 if (!opts) {
3535 exit(1);
3536 }
3537 #else
3538 error_report("File descriptor passing is disabled on this "
3539 "platform");
3540 exit(1);
3541 #endif
3542 break;
3543 case QEMU_OPTION_object:
3544 object_option_parse(optarg);
3545 break;
3546 case QEMU_OPTION_overcommit:
3547 opts = qemu_opts_parse_noisily(qemu_find_opts("overcommit"),
3548 optarg, false);
3549 if (!opts) {
3550 exit(1);
3551 }
3552 enable_mlock = qemu_opt_get_bool(opts, "mem-lock", false);
3553 enable_cpu_pm = qemu_opt_get_bool(opts, "cpu-pm", false);
3554 break;
3555 case QEMU_OPTION_compat:
3556 {
3557 CompatPolicy *opts_policy;
3558 Visitor *v;
3559
3560 v = qobject_input_visitor_new_str(optarg, NULL,
3561 &error_fatal);
3562
3563 visit_type_CompatPolicy(v, NULL, &opts_policy, &error_fatal);
3564 QAPI_CLONE_MEMBERS(CompatPolicy, &compat_policy, opts_policy);
3565
3566 qapi_free_CompatPolicy(opts_policy);
3567 visit_free(v);
3568 break;
3569 }
3570 case QEMU_OPTION_msg:
3571 opts = qemu_opts_parse_noisily(qemu_find_opts("msg"), optarg,
3572 false);
3573 if (!opts) {
3574 exit(1);
3575 }
3576 configure_msg(opts);
3577 break;
3578 case QEMU_OPTION_dump_vmstate:
3579 if (vmstate_dump_file) {
3580 error_report("only one '-dump-vmstate' "
3581 "option may be given");
3582 exit(1);
3583 }
3584 vmstate_dump_file = fopen(optarg, "w");
3585 if (vmstate_dump_file == NULL) {
3586 error_report("open %s: %s", optarg, strerror(errno));
3587 exit(1);
3588 }
3589 break;
3590 case QEMU_OPTION_enable_sync_profile:
3591 qsp_enable();
3592 break;
3593 case QEMU_OPTION_nouserconfig:
3594 /* Nothing to be parsed here. Especially, do not error out below. */
3595 break;
3596 #if defined(CONFIG_POSIX)
3597 case QEMU_OPTION_runas:
3598 if (!os_set_runas(optarg)) {
3599 error_report("User \"%s\" doesn't exist"
3600 " (and is not <uid>:<gid>)",
3601 optarg);
3602 exit(1);
3603 }
3604 break;
3605 case QEMU_OPTION_chroot:
3606 warn_report("option is deprecated,"
3607 " use '-run-with chroot=...' instead");
3608 os_set_chroot(optarg);
3609 break;
3610 case QEMU_OPTION_daemonize:
3611 os_set_daemonize(true);
3612 break;
3613 #if defined(CONFIG_LINUX)
3614 /* deprecated */
3615 case QEMU_OPTION_asyncteardown:
3616 init_async_teardown();
3617 break;
3618 #endif
3619 case QEMU_OPTION_run_with: {
3620 const char *str;
3621 opts = qemu_opts_parse_noisily(qemu_find_opts("run-with"),
3622 optarg, false);
3623 if (!opts) {
3624 exit(1);
3625 }
3626 #if defined(CONFIG_LINUX)
3627 if (qemu_opt_get_bool(opts, "async-teardown", false)) {
3628 init_async_teardown();
3629 }
3630 #endif
3631 str = qemu_opt_get(opts, "chroot");
3632 if (str) {
3633 os_set_chroot(str);
3634 }
3635 break;
3636 }
3637 #endif /* CONFIG_POSIX */
3638
3639 default:
3640 error_report("Option not supported in this build");
3641 exit(1);
3642 }
3643 }
3644 }
3645 /*
3646 * Clear error location left behind by the loop.
3647 * Best done right after the loop. Do not insert code here!
3648 */
3649 loc_set_none();
3650
3651 qemu_validate_options(machine_opts_dict);
3652 qemu_process_sugar_options();
3653
3654 /*
3655 * These options affect everything else and should be processed
3656 * before daemonizing.
3657 */
3658 qemu_process_early_options();
3659
3660 qemu_process_help_options();
3661 qemu_maybe_daemonize(pid_file);
3662
3663 /*
3664 * The trace backend must be initialized after daemonizing.
3665 * trace_init_backends() will call st_init(), which will create the
3666 * trace thread in the parent, and also register st_flush_trace_buffer()
3667 * in atexit(). This function will force the parent to wait for the
3668 * writeout thread to finish, which will not occur, and the parent
3669 * process will be left in the host.
3670 */
3671 if (!trace_init_backends()) {
3672 exit(1);
3673 }
3674 trace_init_file();
3675
3676 qemu_init_main_loop(&error_fatal);
3677 cpu_timers_init();
3678
3679 user_register_global_props();
3680 replay_configure(icount_opts);
3681
3682 configure_rtc(qemu_find_opts_singleton("rtc"));
3683
3684 /* Transfer QemuOpts options into machine options */
3685 parse_memory_options();
3686
3687 qemu_create_machine(machine_opts_dict);
3688
3689 suspend_mux_open();
3690
3691 qemu_disable_default_devices();
3692 qemu_setup_display();
3693 qemu_create_default_devices();
3694 qemu_create_early_backends();
3695
3696 qemu_apply_legacy_machine_options(machine_opts_dict);
3697 qemu_apply_machine_options(machine_opts_dict);
3698 qobject_unref(machine_opts_dict);
3699 phase_advance(PHASE_MACHINE_CREATED);
3700
3701 /*
3702 * Note: uses machine properties such as kernel-irqchip, must run
3703 * after qemu_apply_machine_options.
3704 */
3705 configure_accelerators(argv[0]);
3706 phase_advance(PHASE_ACCEL_CREATED);
3707
3708 /*
3709 * Beware, QOM objects created before this point miss global and
3710 * compat properties.
3711 *
3712 * Global properties get set up by qdev_prop_register_global(),
3713 * called from user_register_global_props(), and certain option
3714 * desugaring. Also in CPU feature desugaring (buried in
3715 * parse_cpu_option()), which happens below this point, but may
3716 * only target the CPU type, which can only be created after
3717 * parse_cpu_option() returned the type.
3718 *
3719 * Machine compat properties: object_set_machine_compat_props().
3720 * Accelerator compat props: object_set_accelerator_compat_props(),
3721 * called from do_configure_accelerator().
3722 */
3723
3724 machine_class = MACHINE_GET_CLASS(current_machine);
3725 if (!qtest_enabled() && machine_class->deprecation_reason) {
3726 warn_report("Machine type '%s' is deprecated: %s",
3727 machine_class->name, machine_class->deprecation_reason);
3728 }
3729
3730 /*
3731 * Create backends before creating migration objects, so that it can
3732 * check against compatibilities on the backend memories (e.g. postcopy
3733 * over memory-backend-file objects).
3734 */
3735 qemu_create_late_backends();
3736
3737 /*
3738 * Note: creates a QOM object, must run only after global and
3739 * compat properties have been set up.
3740 */
3741 migration_object_init();
3742
3743 /* parse features once if machine provides default cpu_type */
3744 current_machine->cpu_type = machine_class->default_cpu_type;
3745 if (cpu_option) {
3746 current_machine->cpu_type = parse_cpu_option(cpu_option);
3747 }
3748 /* NB: for machine none cpu_type could STILL be NULL here! */
3749
3750 qemu_resolve_machine_memdev();
3751 parse_numa_opts(current_machine);
3752
3753 if (vmstate_dump_file) {
3754 /* dump and exit */
3755 module_load_qom_all();
3756 dump_vmstate_json_to_file(vmstate_dump_file);
3757 exit(0);
3758 }
3759
3760 if (!preconfig_requested) {
3761 qmp_x_exit_preconfig(&error_fatal);
3762 }
3763 qemu_init_displays();
3764 accel_setup_post(current_machine);
3765 os_setup_post();
3766 resume_mux_open();
3767 }
3768