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ARM Packages: Fixed th 'NS' (Non Secure) bit in the MMU page Table Descriptor

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The 'NS' bit must only be set in Secure world to define the Non-Secure region
of the Non-Secure World.
This bit must not be set in Non-Secure World.

Signed-off-by: Olivier Martin <olivier.martin@arm.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13252 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2012-05-02 20:00:54 +00:00
parent 96a8bc1150
commit 7fffeef9be
10 changed files with 97 additions and 99 deletions
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15
ArmPkg/Include/Library/ArmLib.h
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@@ -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)