On Mon, Aug 19, 2024 at 02:19:12PM +0100, Steven Price wrote: > +static inline bool arm64_is_iomem_private(phys_addr_t phys_addr, size_t size) > +{ > + if (unlikely(is_realm_world())) > + return arm64_rsi_is_protected_mmio(phys_addr, size); > + return false; > +} I was wondering whether to return true in non-realm world. It doesn't matter since the pgprot_decrypted() wouldn't do anything. Anyway: Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>