CONFIG_CPU_HAS_PTEAEX is not available for thedefaultarchitecture x86.
Result is shown for architecture sh

CONFIG_CPU_HAS_PTEAEX (not configurable)

configname: CONFIG_CPU_HAS_PTEAEX

Linux Kernel Configuration
└─>Processor features
└─>CPU_HAS_PTEAEX
In linux kernel since version 2.6.30 (release Date: 2009-06-09)