Enable statistic for Change Page Attribute
configname: CONFIG_X86_CPA_STATISTICS
Linux Kernel Configuration
└─>Processor type and features
└─>Enable statistic for Change Page Attribute
In linux kernel since version 4.2 (release Date: 2015-08-30)
Expose statistics about the Change Page Attribute mechanism, which
helps to determine the effectiveness of preserving large and huge
page mappings when mapping protections are changed.
helps to determine the effectiveness of preserving large and huge
page mappings when mapping protections are changed.