PROT_SECT_DEFAULT 41 arch/arm64/include/asm/pgtable-prot.h #define PROT_SECT_DEVICE_nGnRE (PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_DEVICE_nGnRE)) PROT_SECT_DEFAULT 42 arch/arm64/include/asm/pgtable-prot.h #define PROT_SECT_NORMAL (PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_NORMAL)) PROT_SECT_DEFAULT 43 arch/arm64/include/asm/pgtable-prot.h #define PROT_SECT_NORMAL_EXEC (PROT_SECT_DEFAULT | PMD_SECT_UXN | PMD_ATTRINDX(MT_NORMAL))