The goal behind this patch is to be able to write userland tests for the
VPHN parsing code.
Suggested-by: NMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: NGreg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>