CONFIG_KERNEL_4M_PAGES is not available for thedefaultarchitecture x86.
Result is shown for architecture metag
default or selected kernelversion does not have config value CONFIG_KERNEL_4M_PAGES.
Result is shown for kernelversion 6.7-rc3

Map kernel with 4MB pages

configname: CONFIG_KERNEL_4M_PAGES

Linux Kernel Configuration
└─>Map kernel with 4MB pages
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Map the kernel with large pages to reduce TLB pressure.