int xen_config_dev_blk(DriveInfo *disk) { char fe[256], be[256]; int vdev = 202 * 256 + 16 * disk->unit; int cdrom = disk->bdrv->type == BDRV_TYPE_CDROM; const char *devtype = cdrom ? "cdrom" : "disk"; const char *mode = cdrom ? "r" : "w"; snprintf(disk->bdrv->device_name, sizeof(disk->bdrv->device_name), "xvd%c", 'a' + disk->unit); xen_be_printf(NULL, 1, "config disk %d [%s]: %s\n", disk->unit, disk->bdrv->device_name, disk->bdrv->filename); xen_config_dev_dirs("vbd", "qdisk", vdev, fe, be, sizeof(fe)); /* frontend */ xenstore_write_int(fe, "virtual-device", vdev); xenstore_write_str(fe, "device-type", devtype); /* backend */ xenstore_write_str(be, "dev", disk->bdrv->device_name); xenstore_write_str(be, "type", "file"); xenstore_write_str(be, "params", disk->bdrv->filename); xenstore_write_str(be, "mode", mode); /* common stuff */ return xen_config_dev_all(fe, be); }