diff -up LVM2.2.02.33/lib/filters/filter.c.vio LVM2.2.02.33/lib/filters/filter.c
--- LVM2.2.02.33/lib/filters/filter.c.vio 2008-03-05 10:47:06.000000000 -0500
+++ LVM2.2.02.33/lib/filters/filter.c 2008-03-05 10:49:43.000000000 -0500
@@ -77,6 +77,7 @@ static const device_info_t device_info[]
{"xvd", 16}, /* Xen virtual block device */
{"vdisk", 8}, /* SUN's LDOM virtual block device */
{"ps3disk", 16}, /* PlayStation 3 internal disk */
+ {"virtblk", 8}, /* VirtIO disk */
{NULL, 0}
};