L_PTE_XN          123 arch/arm/include/asm/pgtable-2level.h #define L_PTE_XN		(_AT(pteval_t, 1) << 9)
L_PTE_XN           71 arch/arm/include/asm/pgtable-3level.h #define L_PTE_XN		(_AT(pteval_t, 1) << 54)	/* XN */