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MdePkg/BaseCacheMaintenanceLib: Support IA32 processors without CLFLUSH

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Use CPUID Leaf 01 to detect support for CLFLUSH instruction.  
If CLFLUSH is supported, use CPUID to determine the cache line size to use with CLFLUSH.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17211 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Michael Kinney
2015-04-27 19:35:32 +00:00
committed by mdkinney
parent ff6955afb5
commit d2660fe32d
2 changed files with 25 additions and 13 deletions
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4
MdePkg/Library/BaseCacheMaintenanceLib/BaseCacheMaintenanceLib.inf
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@@ -4,7 +4,7 @@
# Cache Maintenance Library that uses Base Library services to maintain caches.
# This library assumes there are no chipset dependencies required to maintain caches.
#
# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
#
# This program and the accompanying materials
@@ -23,7 +23,7 @@
MODULE_UNI_FILE = BaseCacheMaintenanceLib.uni
FILE_GUID = 123dd843-57c9-4158-8418-ce68b3944ce7
MODULE_TYPE = BASE
VERSION_STRING = 1.0
VERSION_STRING = 1.1
LIBRARY_CLASS = CacheMaintenanceLib