1 #include "qemu-common.h"
2 #include "qemu-error.h"
3 #include "qemu-option.h"
4 #include "qemu-config.h"
8 static QemuOptsList qemu_drive_opts = {
10 .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
14 .type = QEMU_OPT_NUMBER,
18 .type = QEMU_OPT_NUMBER,
19 .help = "unit number (i.e. lun for scsi)",
22 .type = QEMU_OPT_STRING,
23 .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
26 .type = QEMU_OPT_NUMBER,
27 .help = "index number",
30 .type = QEMU_OPT_NUMBER,
31 .help = "number of cylinders (ide disk geometry)",
34 .type = QEMU_OPT_NUMBER,
35 .help = "number of heads (ide disk geometry)",
38 .type = QEMU_OPT_NUMBER,
39 .help = "number of sectors (ide disk geometry)",
42 .type = QEMU_OPT_STRING,
43 .help = "chs translation (auto, lba. none)",
46 .type = QEMU_OPT_STRING,
47 .help = "media type (disk, cdrom)",
50 .type = QEMU_OPT_BOOL,
51 .help = "enable/disable snapshot mode",
54 .type = QEMU_OPT_STRING,
58 .type = QEMU_OPT_STRING,
59 .help = "host cache usage (none, writeback, writethrough, "
60 "directsync, unsafe)",
63 .type = QEMU_OPT_STRING,
64 .help = "host AIO implementation (threads, native)",
67 .type = QEMU_OPT_STRING,
68 .help = "disk format (raw, qcow2, ...)",
71 .type = QEMU_OPT_STRING,
72 .help = "disk serial number",
75 .type = QEMU_OPT_STRING,
76 .help = "read error action",
79 .type = QEMU_OPT_STRING,
80 .help = "write error action",
83 .type = QEMU_OPT_STRING,
84 .help = "pci address (virtio only)",
87 .type = QEMU_OPT_BOOL,
88 .help = "open drive file as read-only",
91 .type = QEMU_OPT_NUMBER,
92 .help = "limit total I/O operations per second",
95 .type = QEMU_OPT_NUMBER,
96 .help = "limit read operations per second",
99 .type = QEMU_OPT_NUMBER,
100 .help = "limit write operations per second",
103 .type = QEMU_OPT_NUMBER,
104 .help = "limit total bytes per second",
107 .type = QEMU_OPT_NUMBER,
108 .help = "limit read bytes per second",
111 .type = QEMU_OPT_NUMBER,
112 .help = "limit write bytes per second",
114 .name = "copy-on-read",
115 .type = QEMU_OPT_BOOL,
116 .help = "copy read data from backing file into image file",
119 .type = QEMU_OPT_BOOL,
120 .help = "(deprecated, ignored)",
122 { /* end of list */ }
126 static QemuOptsList qemu_iscsi_opts = {
128 .head = QTAILQ_HEAD_INITIALIZER(qemu_iscsi_opts.head),
132 .type = QEMU_OPT_STRING,
133 .help = "username for CHAP authentication to target",
136 .type = QEMU_OPT_STRING,
137 .help = "password for CHAP authentication to target",
139 .name = "header-digest",
140 .type = QEMU_OPT_STRING,
141 .help = "HeaderDigest setting. "
142 "{CRC32C|CRC32C-NONE|NONE-CRC32C|NONE}",
144 .name = "initiator-name",
145 .type = QEMU_OPT_STRING,
146 .help = "Initiator iqn name to use when connecting",
148 { /* end of list */ }
152 static QemuOptsList qemu_chardev_opts = {
154 .implied_opt_name = "backend",
155 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
159 .type = QEMU_OPT_STRING,
162 .type = QEMU_OPT_STRING,
165 .type = QEMU_OPT_STRING,
168 .type = QEMU_OPT_STRING,
171 .type = QEMU_OPT_STRING,
174 .type = QEMU_OPT_STRING,
177 .type = QEMU_OPT_NUMBER,
180 .type = QEMU_OPT_BOOL,
183 .type = QEMU_OPT_BOOL,
186 .type = QEMU_OPT_BOOL,
189 .type = QEMU_OPT_BOOL,
192 .type = QEMU_OPT_BOOL,
195 .type = QEMU_OPT_BOOL,
198 .type = QEMU_OPT_NUMBER,
201 .type = QEMU_OPT_NUMBER,
204 .type = QEMU_OPT_NUMBER,
207 .type = QEMU_OPT_NUMBER,
210 .type = QEMU_OPT_BOOL,
213 .type = QEMU_OPT_BOOL,
216 .type = QEMU_OPT_STRING,
219 .type = QEMU_OPT_NUMBER,
221 { /* end of list */ }
225 QemuOptsList qemu_fsdev_opts = {
227 .implied_opt_name = "fsdriver",
228 .head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
232 .type = QEMU_OPT_STRING,
235 .type = QEMU_OPT_STRING,
237 .name = "security_model",
238 .type = QEMU_OPT_STRING,
241 .type = QEMU_OPT_STRING,
244 .type = QEMU_OPT_BOOL,
248 .type = QEMU_OPT_STRING,
251 .type = QEMU_OPT_NUMBER,
258 QemuOptsList qemu_virtfs_opts = {
260 .implied_opt_name = "fsdriver",
261 .head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
265 .type = QEMU_OPT_STRING,
268 .type = QEMU_OPT_STRING,
271 .type = QEMU_OPT_STRING,
273 .name = "security_model",
274 .type = QEMU_OPT_STRING,
277 .type = QEMU_OPT_STRING,
280 .type = QEMU_OPT_BOOL,
283 .type = QEMU_OPT_STRING,
286 .type = QEMU_OPT_NUMBER,
293 static QemuOptsList qemu_device_opts = {
295 .implied_opt_name = "driver",
296 .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
299 * no elements => accept any
300 * sanity checking will happen later
301 * when setting device properties
303 { /* end of list */ }
307 static QemuOptsList qemu_netdev_opts = {
309 .implied_opt_name = "type",
310 .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head),
313 * no elements => accept any params
314 * validation will happen later
316 { /* end of list */ }
320 static QemuOptsList qemu_net_opts = {
322 .implied_opt_name = "type",
323 .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head),
326 * no elements => accept any params
327 * validation will happen later
329 { /* end of list */ }
333 static QemuOptsList qemu_rtc_opts = {
335 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
339 .type = QEMU_OPT_STRING,
342 .type = QEMU_OPT_STRING,
345 .type = QEMU_OPT_STRING,
347 { /* end of list */ }
351 static QemuOptsList qemu_global_opts = {
353 .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
357 .type = QEMU_OPT_STRING,
360 .type = QEMU_OPT_STRING,
363 .type = QEMU_OPT_STRING,
365 { /* end of list */ }
369 QemuOptsList qemu_sandbox_opts = {
371 .implied_opt_name = "enable",
372 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
376 .type = QEMU_OPT_BOOL,
378 { /* end of list */ }
382 static QemuOptsList qemu_mon_opts = {
384 .implied_opt_name = "chardev",
385 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
389 .type = QEMU_OPT_STRING,
392 .type = QEMU_OPT_STRING,
395 .type = QEMU_OPT_BOOL,
398 .type = QEMU_OPT_BOOL,
400 { /* end of list */ }
404 static QemuOptsList qemu_trace_opts = {
406 .implied_opt_name = "trace",
407 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
411 .type = QEMU_OPT_STRING,
414 .type = QEMU_OPT_STRING,
416 { /* end of list */ }
420 static QemuOptsList qemu_cpudef_opts = {
422 .head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head),
426 .type = QEMU_OPT_STRING,
429 .type = QEMU_OPT_NUMBER,
432 .type = QEMU_OPT_STRING,
435 .type = QEMU_OPT_NUMBER,
438 .type = QEMU_OPT_NUMBER,
441 .type = QEMU_OPT_NUMBER,
443 .name = "feature_edx", /* cpuid 0000_0001.edx */
444 .type = QEMU_OPT_STRING,
446 .name = "feature_ecx", /* cpuid 0000_0001.ecx */
447 .type = QEMU_OPT_STRING,
449 .name = "extfeature_edx", /* cpuid 8000_0001.edx */
450 .type = QEMU_OPT_STRING,
452 .name = "extfeature_ecx", /* cpuid 8000_0001.ecx */
453 .type = QEMU_OPT_STRING,
456 .type = QEMU_OPT_NUMBER,
459 .type = QEMU_OPT_STRING,
461 .name = "vendor_override",
462 .type = QEMU_OPT_NUMBER,
464 { /* end of list */ }
468 QemuOptsList qemu_spice_opts = {
470 .head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head),
474 .type = QEMU_OPT_NUMBER,
477 .type = QEMU_OPT_NUMBER,
480 .type = QEMU_OPT_STRING,
483 .type = QEMU_OPT_BOOL,
486 .type = QEMU_OPT_BOOL,
489 .type = QEMU_OPT_STRING,
491 .name = "disable-ticketing",
492 .type = QEMU_OPT_BOOL,
494 .name = "disable-copy-paste",
495 .type = QEMU_OPT_BOOL,
498 .type = QEMU_OPT_BOOL,
501 .type = QEMU_OPT_STRING,
503 .name = "x509-key-file",
504 .type = QEMU_OPT_STRING,
506 .name = "x509-key-password",
507 .type = QEMU_OPT_STRING,
509 .name = "x509-cert-file",
510 .type = QEMU_OPT_STRING,
512 .name = "x509-cacert-file",
513 .type = QEMU_OPT_STRING,
515 .name = "x509-dh-key-file",
516 .type = QEMU_OPT_STRING,
518 .name = "tls-ciphers",
519 .type = QEMU_OPT_STRING,
521 .name = "tls-channel",
522 .type = QEMU_OPT_STRING,
524 .name = "plaintext-channel",
525 .type = QEMU_OPT_STRING,
527 .name = "image-compression",
528 .type = QEMU_OPT_STRING,
530 .name = "jpeg-wan-compression",
531 .type = QEMU_OPT_STRING,
533 .name = "zlib-glz-wan-compression",
534 .type = QEMU_OPT_STRING,
536 .name = "streaming-video",
537 .type = QEMU_OPT_STRING,
539 .name = "agent-mouse",
540 .type = QEMU_OPT_BOOL,
542 .name = "playback-compression",
543 .type = QEMU_OPT_BOOL,
545 .name = "seamless-migration",
546 .type = QEMU_OPT_BOOL,
548 { /* end of list */ }
552 QemuOptsList qemu_option_rom_opts = {
553 .name = "option-rom",
554 .implied_opt_name = "romfile",
555 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
559 .type = QEMU_OPT_NUMBER,
562 .type = QEMU_OPT_STRING,
564 { /* end of list */ }
568 static QemuOptsList qemu_machine_opts = {
570 .implied_opt_name = "type",
572 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
576 .type = QEMU_OPT_STRING,
577 .help = "emulated machine"
580 .type = QEMU_OPT_STRING,
581 .help = "accelerator list",
583 .name = "kernel_irqchip",
584 .type = QEMU_OPT_BOOL,
585 .help = "use KVM in-kernel irqchip",
587 .name = "kvm_shadow_mem",
588 .type = QEMU_OPT_SIZE,
589 .help = "KVM shadow MMU size",
592 .type = QEMU_OPT_STRING,
593 .help = "Linux kernel image file",
596 .type = QEMU_OPT_STRING,
597 .help = "Linux initial ramdisk file",
600 .type = QEMU_OPT_STRING,
601 .help = "Linux kernel command line",
604 .type = QEMU_OPT_STRING,
605 .help = "Linux kernel device tree file",
608 .type = QEMU_OPT_STRING,
609 .help = "Dump current dtb to a file and quit",
611 .name = "phandle_start",
612 .type = QEMU_OPT_STRING,
613 .help = "The first phandle ID we may generate dynamically",
615 .name = "dt_compatible",
616 .type = QEMU_OPT_STRING,
617 .help = "Overrides the \"compatible\" property of the dt root node",
619 .name = "dump-guest-core",
620 .type = QEMU_OPT_BOOL,
621 .help = "Include guest memory in a core dump",
624 .type = QEMU_OPT_BOOL,
625 .help = "enable/disable memory merge support",
628 .type = QEMU_OPT_BOOL,
629 .help = "Set on/off to enable/disable usb",
631 { /* End of list */ }
635 QemuOptsList qemu_boot_opts = {
637 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
639 /* the three names below are not used now */
642 .type = QEMU_OPT_STRING,
645 .type = QEMU_OPT_STRING,
648 .type = QEMU_OPT_STRING,
649 /* following are really used */
652 .type = QEMU_OPT_STRING,
654 .name = "splash-time",
655 .type = QEMU_OPT_STRING,
657 .name = "reboot-timeout",
658 .type = QEMU_OPT_STRING,
664 static QemuOptsList qemu_add_fd_opts = {
666 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
670 .type = QEMU_OPT_NUMBER,
671 .help = "file descriptor of which a duplicate is added to fd set",
674 .type = QEMU_OPT_NUMBER,
675 .help = "ID of the fd set to add fd to",
678 .type = QEMU_OPT_STRING,
679 .help = "free-form string used to describe fd",
681 { /* end of list */ }
685 static QemuOptsList qemu_object_opts = {
687 .implied_opt_name = "qom-type",
688 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
694 static QemuOptsList *vm_config_groups[32] = {
705 &qemu_option_rom_opts,
715 static QemuOptsList *find_list(QemuOptsList **lists, const char *group,
720 for (i = 0; lists[i] != NULL; i++) {
721 if (strcmp(lists[i]->name, group) == 0)
724 if (lists[i] == NULL) {
725 error_set(errp, QERR_INVALID_OPTION_GROUP, group);
730 QemuOptsList *qemu_find_opts(const char *group)
733 Error *local_err = NULL;
735 ret = find_list(vm_config_groups, group, &local_err);
736 if (error_is_set(&local_err)) {
737 error_report("%s\n", error_get_pretty(local_err));
738 error_free(local_err);
744 QemuOptsList *qemu_find_opts_err(const char *group, Error **errp)
746 return find_list(vm_config_groups, group, errp);
749 void qemu_add_opts(QemuOptsList *list)
753 entries = ARRAY_SIZE(vm_config_groups);
754 entries--; /* keep list NULL terminated */
755 for (i = 0; i < entries; i++) {
756 if (vm_config_groups[i] == NULL) {
757 vm_config_groups[i] = list;
761 fprintf(stderr, "ran out of space in vm_config_groups");
765 int qemu_set_option(const char *str)
767 char group[64], id[64], arg[64];
772 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
773 if (rc < 3 || str[offset] != '=') {
774 error_report("can't parse: \"%s\"", str);
778 list = qemu_find_opts(group);
783 opts = qemu_opts_find(list, id);
785 error_report("there is no %s \"%s\" defined",
790 if (qemu_opt_set(opts, arg, str+offset+1) == -1) {
796 int qemu_global_option(const char *str)
798 char driver[64], property[64];
802 rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
803 if (rc < 2 || str[offset] != '=') {
804 error_report("can't parse: \"%s\"", str);
808 opts = qemu_opts_create(&qemu_global_opts, NULL, 0, NULL);
809 qemu_opt_set(opts, "driver", driver);
810 qemu_opt_set(opts, "property", property);
811 qemu_opt_set(opts, "value", str+offset+1);
815 struct ConfigWriteData {
820 static int config_write_opt(const char *name, const char *value, void *opaque)
822 struct ConfigWriteData *data = opaque;
824 fprintf(data->fp, " %s = \"%s\"\n", name, value);
828 static int config_write_opts(QemuOpts *opts, void *opaque)
830 struct ConfigWriteData *data = opaque;
831 const char *id = qemu_opts_id(opts);
834 fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
836 fprintf(data->fp, "[%s]\n", data->list->name);
838 qemu_opt_foreach(opts, config_write_opt, data, 0);
839 fprintf(data->fp, "\n");
843 void qemu_config_write(FILE *fp)
845 struct ConfigWriteData data = { .fp = fp };
846 QemuOptsList **lists = vm_config_groups;
849 fprintf(fp, "# qemu config file\n\n");
850 for (i = 0; lists[i] != NULL; i++) {
851 data.list = lists[i];
852 qemu_opts_foreach(data.list, config_write_opts, &data, 0);
856 int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
858 char line[1024], group[64], id[64], arg[64], value[1024];
860 QemuOptsList *list = NULL;
861 Error *local_err = NULL;
862 QemuOpts *opts = NULL;
863 int res = -1, lno = 0;
866 while (fgets(line, sizeof(line), fp) != NULL) {
867 loc_set_file(fname, ++lno);
868 if (line[0] == '\n') {
869 /* skip empty lines */
872 if (line[0] == '#') {
876 if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
878 list = find_list(lists, group, &local_err);
879 if (error_is_set(&local_err)) {
880 error_report("%s\n", error_get_pretty(local_err));
881 error_free(local_err);
884 opts = qemu_opts_create(list, id, 1, NULL);
887 if (sscanf(line, "[%63[^]]]", group) == 1) {
888 /* group without id */
889 list = find_list(lists, group, &local_err);
890 if (error_is_set(&local_err)) {
891 error_report("%s\n", error_get_pretty(local_err));
892 error_free(local_err);
895 opts = qemu_opts_create(list, NULL, 0, NULL);
898 if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) {
901 error_report("no group defined");
904 if (qemu_opt_set(opts, arg, value) != 0) {
909 error_report("parse error");
913 error_report("error reading file");
922 int qemu_read_config_file(const char *filename)
924 FILE *f = fopen(filename, "r");
931 ret = qemu_config_parse(f, vm_config_groups, filename);