Use a better algorithm to calculate MTRR

[edk2] [PATCH 02/10] UefiCpuPkg/MtrrLib: Add CacheInvalid enum type to MtrrLib.h

Posted by Ruiyu Ni 7 years, 7 months ago

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jeff Fan <jeff.fan@intel.com>
---
 UefiCpuPkg/Include/Library/MtrrLib.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/UefiCpuPkg/Include/Library/MtrrLib.h b/UefiCpuPkg/Include/Library/MtrrLib.h
index a769279..573c14c 100644
--- a/UefiCpuPkg/Include/Library/MtrrLib.h
+++ b/UefiCpuPkg/Include/Library/MtrrLib.h
@@ -119,7 +119,8 @@ typedef enum {
   CacheWriteCombining = 1,
   CacheWriteThrough   = 4,
   CacheWriteProtected = 5,
-  CacheWriteBack      = 6
+  CacheWriteBack      = 6,
+  CacheInvalid        = 7
 } MTRR_MEMORY_CACHE_TYPE;
 
 #define  MTRR_CACHE_UNCACHEABLE      0
-- 
2.9.0.windows.1

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