CONFIG_PPC_BOOK3E_64 is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

Embedded processors

modulename: exceptions-64e.ko

configname: CONFIG_PPC_BOOK3E_64

Processor Type
└─>Embedded processors
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
source code:
arch/powerpc/kernel/
selects
CONFIG_PPC_FPU