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,
29 .type = QEMU_OPT_NUMBER,
30 .help = "number of cylinders (ide disk geometry)",
33 .type = QEMU_OPT_NUMBER,
34 .help = "number of heads (ide disk geometry)",
37 .type = QEMU_OPT_NUMBER,
38 .help = "number of sectors (ide disk geometry)",
41 .type = QEMU_OPT_STRING,
42 .help = "chs translation (auto, lba. none)",
45 .type = QEMU_OPT_STRING,
46 .help = "media type (disk, cdrom)",
49 .type = QEMU_OPT_BOOL,
52 .type = QEMU_OPT_STRING,
56 .type = QEMU_OPT_STRING,
57 .help = "host cache usage (none, writeback, writethrough, unsafe)",
60 .type = QEMU_OPT_STRING,
61 .help = "host AIO implementation (threads, native)",
64 .type = QEMU_OPT_STRING,
65 .help = "disk format (raw, qcow2, ...)",
68 .type = QEMU_OPT_STRING,
71 .type = QEMU_OPT_STRING,
74 .type = QEMU_OPT_STRING,
77 .type = QEMU_OPT_STRING,
78 .help = "pci address (virtio only)",
81 .type = QEMU_OPT_BOOL,
87 static QemuOptsList qemu_chardev_opts = {
89 .implied_opt_name = "backend",
90 .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
94 .type = QEMU_OPT_STRING,
97 .type = QEMU_OPT_STRING,
100 .type = QEMU_OPT_STRING,
103 .type = QEMU_OPT_STRING,
106 .type = QEMU_OPT_STRING,
109 .type = QEMU_OPT_STRING,
112 .type = QEMU_OPT_NUMBER,
115 .type = QEMU_OPT_BOOL,
118 .type = QEMU_OPT_BOOL,
121 .type = QEMU_OPT_BOOL,
124 .type = QEMU_OPT_BOOL,
127 .type = QEMU_OPT_BOOL,
130 .type = QEMU_OPT_BOOL,
133 .type = QEMU_OPT_NUMBER,
136 .type = QEMU_OPT_NUMBER,
139 .type = QEMU_OPT_NUMBER,
142 .type = QEMU_OPT_NUMBER,
145 .type = QEMU_OPT_BOOL,
148 .type = QEMU_OPT_BOOL,
151 .type = QEMU_OPT_STRING,
154 .type = QEMU_OPT_NUMBER,
156 { /* end of list */ }
160 QemuOptsList qemu_fsdev_opts = {
162 .implied_opt_name = "fstype",
163 .head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
167 .type = QEMU_OPT_STRING,
170 .type = QEMU_OPT_STRING,
172 .name = "security_model",
173 .type = QEMU_OPT_STRING,
179 QemuOptsList qemu_virtfs_opts = {
181 .implied_opt_name = "fstype",
182 .head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
186 .type = QEMU_OPT_STRING,
189 .type = QEMU_OPT_STRING,
192 .type = QEMU_OPT_STRING,
194 .name = "security_model",
195 .type = QEMU_OPT_STRING,
202 static QemuOptsList qemu_device_opts = {
204 .implied_opt_name = "driver",
205 .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
208 * no elements => accept any
209 * sanity checking will happen later
210 * when setting device properties
212 { /* end of list */ }
216 static QemuOptsList qemu_netdev_opts = {
218 .implied_opt_name = "type",
219 .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head),
222 * no elements => accept any params
223 * validation will happen later
225 { /* end of list */ }
229 static QemuOptsList qemu_net_opts = {
231 .implied_opt_name = "type",
232 .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head),
235 * no elements => accept any params
236 * validation will happen later
238 { /* end of list */ }
242 static QemuOptsList qemu_rtc_opts = {
244 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
248 .type = QEMU_OPT_STRING,
251 .type = QEMU_OPT_STRING,
254 .type = QEMU_OPT_STRING,
256 { /* end of list */ }
260 static QemuOptsList qemu_global_opts = {
262 .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
266 .type = QEMU_OPT_STRING,
269 .type = QEMU_OPT_STRING,
272 .type = QEMU_OPT_STRING,
274 { /* end of list */ }
278 static QemuOptsList qemu_mon_opts = {
280 .implied_opt_name = "chardev",
281 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
285 .type = QEMU_OPT_STRING,
288 .type = QEMU_OPT_STRING,
291 .type = QEMU_OPT_BOOL,
294 .type = QEMU_OPT_BOOL,
296 { /* end of list */ }
300 #ifdef CONFIG_SIMPLE_TRACE
301 static QemuOptsList qemu_trace_opts = {
303 .implied_opt_name = "trace",
304 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
308 .type = QEMU_OPT_STRING,
310 { /* end if list */ }
315 static QemuOptsList qemu_cpudef_opts = {
317 .head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head),
321 .type = QEMU_OPT_STRING,
324 .type = QEMU_OPT_NUMBER,
327 .type = QEMU_OPT_STRING,
330 .type = QEMU_OPT_NUMBER,
333 .type = QEMU_OPT_NUMBER,
336 .type = QEMU_OPT_NUMBER,
338 .name = "feature_edx", /* cpuid 0000_0001.edx */
339 .type = QEMU_OPT_STRING,
341 .name = "feature_ecx", /* cpuid 0000_0001.ecx */
342 .type = QEMU_OPT_STRING,
344 .name = "extfeature_edx", /* cpuid 8000_0001.edx */
345 .type = QEMU_OPT_STRING,
347 .name = "extfeature_ecx", /* cpuid 8000_0001.ecx */
348 .type = QEMU_OPT_STRING,
351 .type = QEMU_OPT_NUMBER,
354 .type = QEMU_OPT_STRING,
356 .name = "vendor_override",
357 .type = QEMU_OPT_NUMBER,
359 { /* end of list */ }
363 QemuOptsList qemu_spice_opts = {
365 .head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head),
369 .type = QEMU_OPT_NUMBER,
372 .type = QEMU_OPT_NUMBER,
375 .type = QEMU_OPT_STRING,
378 .type = QEMU_OPT_BOOL,
381 .type = QEMU_OPT_BOOL,
384 .type = QEMU_OPT_STRING,
386 .name = "disable-ticketing",
387 .type = QEMU_OPT_BOOL,
390 .type = QEMU_OPT_STRING,
392 .name = "x509-key-file",
393 .type = QEMU_OPT_STRING,
395 .name = "x509-key-password",
396 .type = QEMU_OPT_STRING,
398 .name = "x509-cert-file",
399 .type = QEMU_OPT_STRING,
401 .name = "x509-cacert-file",
402 .type = QEMU_OPT_STRING,
404 .name = "x509-dh-key-file",
405 .type = QEMU_OPT_STRING,
407 .name = "tls-ciphers",
408 .type = QEMU_OPT_STRING,
410 .name = "tls-channel",
411 .type = QEMU_OPT_STRING,
413 .name = "plaintext-channel",
414 .type = QEMU_OPT_STRING,
416 .name = "image-compression",
417 .type = QEMU_OPT_STRING,
419 .name = "jpeg-wan-compression",
420 .type = QEMU_OPT_STRING,
422 .name = "zlib-glz-wan-compression",
423 .type = QEMU_OPT_STRING,
425 .name = "streaming-video",
426 .type = QEMU_OPT_STRING,
428 .name = "agent-mouse",
429 .type = QEMU_OPT_BOOL,
431 .name = "playback-compression",
432 .type = QEMU_OPT_BOOL,
434 { /* end if list */ }
438 QemuOptsList qemu_option_rom_opts = {
439 .name = "option-rom",
440 .implied_opt_name = "romfile",
441 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
445 .type = QEMU_OPT_NUMBER,
448 .type = QEMU_OPT_STRING,
450 { /* end if list */ }
454 static QemuOptsList *vm_config_groups[32] = {
464 #ifdef CONFIG_SIMPLE_TRACE
467 &qemu_option_rom_opts,
471 static QemuOptsList *find_list(QemuOptsList **lists, const char *group)
475 for (i = 0; lists[i] != NULL; i++) {
476 if (strcmp(lists[i]->name, group) == 0)
479 if (lists[i] == NULL) {
480 error_report("there is no option group \"%s\"", group);
485 QemuOptsList *qemu_find_opts(const char *group)
487 return find_list(vm_config_groups, group);
490 void qemu_add_opts(QemuOptsList *list)
494 entries = ARRAY_SIZE(vm_config_groups);
495 entries--; /* keep list NULL terminated */
496 for (i = 0; i < entries; i++) {
497 if (vm_config_groups[i] == NULL) {
498 vm_config_groups[i] = list;
502 fprintf(stderr, "ran out of space in vm_config_groups");
506 int qemu_set_option(const char *str)
508 char group[64], id[64], arg[64];
513 rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
514 if (rc < 3 || str[offset] != '=') {
515 error_report("can't parse: \"%s\"", str);
519 list = qemu_find_opts(group);
524 opts = qemu_opts_find(list, id);
526 error_report("there is no %s \"%s\" defined",
531 if (qemu_opt_set(opts, arg, str+offset+1) == -1) {
537 int qemu_global_option(const char *str)
539 char driver[64], property[64];
543 rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
544 if (rc < 2 || str[offset] != '=') {
545 error_report("can't parse: \"%s\"", str);
549 opts = qemu_opts_create(&qemu_global_opts, NULL, 0);
550 qemu_opt_set(opts, "driver", driver);
551 qemu_opt_set(opts, "property", property);
552 qemu_opt_set(opts, "value", str+offset+1);
556 struct ConfigWriteData {
561 static int config_write_opt(const char *name, const char *value, void *opaque)
563 struct ConfigWriteData *data = opaque;
565 fprintf(data->fp, " %s = \"%s\"\n", name, value);
569 static int config_write_opts(QemuOpts *opts, void *opaque)
571 struct ConfigWriteData *data = opaque;
572 const char *id = qemu_opts_id(opts);
575 fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
577 fprintf(data->fp, "[%s]\n", data->list->name);
579 qemu_opt_foreach(opts, config_write_opt, data, 0);
580 fprintf(data->fp, "\n");
584 void qemu_config_write(FILE *fp)
586 struct ConfigWriteData data = { .fp = fp };
587 QemuOptsList **lists = vm_config_groups;
590 fprintf(fp, "# qemu config file\n\n");
591 for (i = 0; lists[i] != NULL; i++) {
592 data.list = lists[i];
593 qemu_opts_foreach(data.list, config_write_opts, &data, 0);
597 int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
599 char line[1024], group[64], id[64], arg[64], value[1024];
601 QemuOptsList *list = NULL;
602 QemuOpts *opts = NULL;
603 int res = -1, lno = 0;
606 while (fgets(line, sizeof(line), fp) != NULL) {
607 loc_set_file(fname, ++lno);
608 if (line[0] == '\n') {
609 /* skip empty lines */
612 if (line[0] == '#') {
616 if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
618 list = find_list(lists, group);
621 opts = qemu_opts_create(list, id, 1);
624 if (sscanf(line, "[%63[^]]]", group) == 1) {
625 /* group without id */
626 list = find_list(lists, group);
629 opts = qemu_opts_create(list, NULL, 0);
632 if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) {
635 error_report("no group defined");
638 if (qemu_opt_set(opts, arg, value) != 0) {
643 error_report("parse error");
647 error_report("error reading file");
656 int qemu_read_config_file(const char *filename)
658 FILE *f = fopen(filename, "r");
665 ret = qemu_config_parse(f, vm_config_groups, filename);