_PAGE_BIT_NX      104 include/asm-mn10300/pgtable.h #define _PAGE_BIT_NX		xPTEL_UNUSED2_BIT	/* mustn't be loaded into IPTEL/DPTEL */
_PAGE_BIT_NX       23 include/asm-x86/pgtable.h #define _PAGE_BIT_NX           63       /* No execute: only valid after cpuid check */