CONFIG_X2TLB is not available for thedefaultarchitecture x86.
Result is shown for architecture sh
Enable extended TLB mode
configname: CONFIG_X2TLB
Linux Kernel Configuration
└─>Memory management options
└─>Enable extended TLB mode
In linux kernel since version 2.6.20 (release Date: 2007-02-04)
Selecting this option will enable the extended mode of the SH-X2
TLB. For legacy SH-X behaviour and interoperability, say N. For
all of the fun new features and a willingless to submit bug reports,
say Y.
TLB. For legacy SH-X behaviour and interoperability, say N. For
all of the fun new features and a willingless to submit bug reports,
say Y.