CONFIG_XILINX_VIRTEX_II_PRO is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

CONFIG_XILINX_VIRTEX_II_PRO (not configurable)

configname: CONFIG_XILINX_VIRTEX_II_PRO

Linux Kernel Configuration
└─>XILINX_VIRTEX_II_PRO
In linux kernel since version 2.6.20 (release Date: 2007-02-04)