The default device id of hard disk on the s390 platform is "virtio0"
which differs to the "ide0-hd0" for the x86 platform. Setting id in
the drive definition, ie:"qemu -drive id=testdisk", will be the same
on all platforms.
Reviewed-by: NMax Reitz <mreitz@redhat.com>
Signed-off-by: NBo Tu <tubo@linux.vnet.ibm.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>