diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-02 20:00:54 +0000 |
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| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-02 20:00:54 +0000 |
| commit | 7fffeef9bece37fe48341fcf47edb474f954e690 (patch) | |
| tree | 11fbb17e2f70b8b63898410480b247f2cae44ce8 /ArmPkg/Include/Library | |
| parent | 96a8bc11507ee060ccb8be56f69e1d1a7cf52792 (diff) | |
| download | edk2-platforms-7fffeef9bece37fe48341fcf47edb474f954e690.tar.xz | |
ARM Packages: Fixed th 'NS' (Non Secure) bit in the MMU page Table Descriptor
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
Diffstat (limited to 'ArmPkg/Include/Library')
| -rw-r--r-- | ArmPkg/Include/Library/ArmLib.h | 15 |
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) |