diff --git a/sys/arm64/arm64/machdep.c b/sys/arm64/arm64/machdep.c
--- a/sys/arm64/arm64/machdep.c
+++ b/sys/arm64/arm64/machdep.c
@@ -461,9 +461,15 @@
 		 * We're allowed to use any entry with these types.
 		 */
 		break;
-	default:
+	case EFI_MD_TYPE_RECLAIM:
+	case EFI_MD_TYPE_RT_CODE:
+	case EFI_MD_TYPE_RT_DATA:
 		physmem_exclude_region(p->md_phys, p->md_pages * EFI_PAGE_SIZE,
 		    EXFLAG_NOALLOC);
+		break;
+	default:
+		/* Other non-memory types shall not be handled by physmem. */
+		break;
 	}
 }
 
@@ -507,6 +513,9 @@
 		physmem_hardware_region(p->md_phys,
 		    p->md_pages * EFI_PAGE_SIZE);
 		break;
+	default:
+		/* Other non-memory types shall not be handled by physmem. */
+		break;
 	}
 }