PAGE_S2_DEVICE    103 arch/arm/include/asm/pgtable.h #define PAGE_S2_DEVICE		_MOD_PROT(pgprot_s2_device, L_PTE_S2_RDONLY | L_PTE_XN)
PAGE_S2_DEVICE     80 arch/arm64/include/asm/pgtable-prot.h #define PAGE_S2_DEVICE		__pgprot(_PROT_DEFAULT | PAGE_S2_MEMATTR(DEVICE_nGnRE) | PTE_S2_RDONLY | PTE_S2_XN)