CONFIG_ARM64_PA_BITS_52 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64
52-bit (ARMv8.2)
configname: CONFIG_ARM64_PA_BITS_52
Physical address space size
└─>52-bit (ARMv8.2)
In linux kernel since version 3.10 (release Date: 2013-06-30)
Enable support for a 52-bit physical address space, introduced as
part of the ARMv8.2-LPA extension.
With this enabled, the kernel will also continue to work on CPUs that
do not support ARMv8.2-LPA, but with some added memory overhead (and
minor performance overhead).
part of the ARMv8.2-LPA extension.
With this enabled, the kernel will also continue to work on CPUs that
do not support ARMv8.2-LPA, but with some added memory overhead (and
minor performance overhead).