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-rw-r--r--ArmPkg/Include/Library/ArmLib.h15
1 files changed, 11 insertions, 4 deletions
diff --git a/ArmPkg/Include/Library/ArmLib.h b/ArmPkg/Include/Library/ArmLib.h
index 9b4a036bef..50cd50212f 100644
--- a/ArmPkg/Include/Library/ArmLib.h
+++ b/ArmPkg/Include/Library/ArmLib.h
@@ -1,6 +1,7 @@
/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+ Copyright (c) 2011 - 2012, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -47,15 +48,21 @@ typedef struct {
UINTN InstructionCacheLineLength;
} ARM_CACHE_INFO;
+/**
+ * The UEFI firmware must not use the ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_* attributes.
+ *
+ * The Non Secure memory attribute (ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_*) should only
+ * be used in Secure World to distinguished Secure to Non-Secure memory.
+ */
typedef enum {
ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED = 0,
- ARM_MEMORY_REGION_ATTRIBUTE_SECURE_UNCACHED_UNBUFFERED,
+ ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_UNCACHED_UNBUFFERED,
ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK,
- ARM_MEMORY_REGION_ATTRIBUTE_SECURE_WRITE_BACK,
+ ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_WRITE_BACK,
ARM_MEMORY_REGION_ATTRIBUTE_WRITE_THROUGH,
- ARM_MEMORY_REGION_ATTRIBUTE_SECURE_WRITE_THROUGH,
+ ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_WRITE_THROUGH,
ARM_MEMORY_REGION_ATTRIBUTE_DEVICE,
- ARM_MEMORY_REGION_ATTRIBUTE_SECURE_DEVICE
+ ARM_MEMORY_REGION_ATTRIBUTE_NONSECURE_DEVICE
} ARM_MEMORY_REGION_ATTRIBUTES;
#define IS_ARM_MEMORY_REGION_ATTRIBUTES_SECURE(attr) ((UINT32)(attr) & 1)