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#include "qemu-common.h"
#include "qemu-option.h"
#include "qemu-config.h"
QemuOptsList qemu_drive_opts = {
.name = "drive",
.head = TAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),
.desc = {
{
.name = "bus",
.type = QEMU_OPT_NUMBER,
.help = "bus number",
},{
.name = "unit",
.type = QEMU_OPT_NUMBER,
.help = "unit number (i.e. lun for scsi)",
},{
.name = "if",
.type = QEMU_OPT_STRING,
.help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
},{
.name = "index",
.type = QEMU_OPT_NUMBER,
},{
.name = "cyls",
.type = QEMU_OPT_NUMBER,
.help = "number of cylinders (ide disk geometry)",
},{
.name = "heads",
.type = QEMU_OPT_NUMBER,
.help = "number of heads (ide disk geometry)",
},{
.name = "secs",
.type = QEMU_OPT_NUMBER,
.help = "number of sectors (ide disk geometry)",
},{
.name = "trans",
.type = QEMU_OPT_STRING,
.help = "chs translation (auto, lba. none)",
},{
.name = "media",
.type = QEMU_OPT_STRING,
.help = "media type (disk, cdrom)",
},{
.name = "snapshot",
.type = QEMU_OPT_BOOL,
},{
.name = "file",
.type = QEMU_OPT_STRING,
.help = "disk image",
},{
.name = "cache",
.type = QEMU_OPT_STRING,
.help = "host cache usage (none, writeback, writethrough)",
},{
.name = "aio",
.type = QEMU_OPT_STRING,
.help = "host AIO implementation (threads, native)",
},{
.name = "format",
.type = QEMU_OPT_STRING,
.help = "disk format (raw, qcow2, ...)",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
},{
.name = "werror",
.type = QEMU_OPT_STRING,
},{
.name = "addr",
.type = QEMU_OPT_STRING,
.help = "pci address (virtio only)",
},
{ /* end if list */ }
},
};
QemuOptsList qemu_chardev_opts = {
.name = "chardev",
.head = TAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
.desc = {
{
.name = "backend",
.type = QEMU_OPT_STRING,
},{
.name = "path",
.type = QEMU_OPT_STRING,
},
{ /* end if list */ }
},
};
QemuOptsList qemu_device_opts = {
.name = "device",
.head = TAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
.desc = {
/*
* no elements => accept any
* sanity checking will happen later
* when setting device properties
*/
{ /* end if list */ }
},
};
static QemuOptsList *lists[] = {
&qemu_drive_opts,
&qemu_chardev_opts,
&qemu_device_opts,
NULL,
};
int qemu_set_option(const char *str)
{
char group[64], id[64], arg[64];
QemuOpts *opts;
int i, rc, offset;
rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
if (rc < 3 || str[offset] != '=') {
fprintf(stderr, "can't parse: \"%s\"\n", str);
return -1;
}
for (i = 0; lists[i] != NULL; i++) {
if (strcmp(lists[i]->name, group) == 0)
break;
}
if (lists[i] == NULL) {
fprintf(stderr, "there is no option group \"%s\"\n", group);
return -1;
}
opts = qemu_opts_find(lists[i], id);
if (!opts) {
fprintf(stderr, "there is no %s \"%s\" defined\n",
lists[i]->name, id);
return -1;
}
if (-1 == qemu_opt_set(opts, arg, str+offset+1)) {
fprintf(stderr, "failed to set \"%s\" for %s \"%s\"\n",
arg, lists[i]->name, id);
return -1;
}
return 0;
}
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