Question about skipping virDomainDiskDefAssignAddress

Hi, is there any existing way for skipping virDomainDiskDefAssignAddress for disk configuration? I want to send the following XML to libvirt, but I got the error "virDomainDiskDefAssignAddress:7642 : XML error: Unknown disk name '0A80' and no address specified". <disk type='file'> <source file='/volumes_qcow2/DMRES1.qcow2'/> <target dev='0A80' /> </disk> According to the source code, target device must be one of {"fd", "hd", "vd", "sd", "xvd", "ubd"} + alphabet (+ number). Our guest OS is not Linux, so I'd like to skip this limitation. Actually, I want to specify 4-digits hexadecimal number in target device. Is there any hypervisor driver for Windows? I guess that it also has the same problem. Motohiro Kawahito, Commercial Systems, IBM Research - Tokyo 19-21 Nihonbashi, Hakozaki-cho Chuo-ku, Tokyo 103-8510, Japan