diff --git a/include/efi.h b/include/efi.h
index 503fbf060b..6417a9b8c5 100644
--- a/include/efi.h
+++ b/include/efi.h
@@ -180,9 +180,13 @@ enum efi_mem_type {
 	 */
 	EFI_PAL_CODE,
 	/*
-	 * Non-volatile memory.
+	 * Byte addressable non-volatile memory.
 	 */
 	EFI_PERSISTENT_MEMORY_TYPE,
+	/*
+	 * Unaccepted memory must be accepted by boot target before usage.
+	 */
+	EFI_UNACCEPTED_MEMORY_TYPE,
 
 	EFI_MAX_MEMORY_TYPE,
 };
@@ -201,6 +205,7 @@ enum efi_mem_type {
 				((u64)0x0000000000010000ULL)	/* higher reliability */
 #define EFI_MEMORY_RO		((u64)0x0000000000020000ULL)	/* read-only */
 #define EFI_MEMORY_SP		((u64)0x0000000000040000ULL)	/* specific-purpose memory (SPM) */
+#define EFI_MEMORY_CPU_CRYPTO	((u64)0x0000000000080000ULL)	/* cryptographically protectable */
 #define EFI_MEMORY_RUNTIME	((u64)0x8000000000000000ULL)	/* range requires runtime mapping */
 #define EFI_MEM_DESC_VERSION	1