CONFIG_HIGHPTE is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Allocate 2nd-level pagetables from highmem
configname: CONFIG_HIGHPTE
Linux Kernel Configuration
└─>Kernel Features
└─>Allocate 2nd-level pagetables from highmem
In linux kernel since version 2.6.12
The VM uses one page of physical memory for each page table.
For systems with a lot of processes, this can use a lot of
precious low memory, eventually leading to low memory being
consumed by page tables. Setting this option will allow
user-space 2nd level page tables to reside in high memory.
For systems with a lot of processes, this can use a lot of
precious low memory, eventually leading to low memory being
consumed by page tables. Setting this option will allow
user-space 2nd level page tables to reside in high memory.