From: Jason <yun.lou@intel.com>
Date: Fri, 13 Aug 2021 02:05:28 +0000 (+0800)
Subject: UefiCpuPkg/CpuCacheInfoLib: Correct logical for identifying cache type
X-Git-Tag: edk2-stable202108~1
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=8dd4fc5be6189666b37e5b00131a4173c6a2b085

UefiCpuPkg/CpuCacheInfoLib: Correct logical for identifying cache type

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3265

Correct the logical for identifying "Direct mapped" cache type.

Signed-off-by: Jason Lou <yun.lou@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
---

diff --git a/UefiCpuPkg/Library/CpuCacheInfoLib/CpuCacheInfoLib.c b/UefiCpuPkg/Library/CpuCacheInfoLib/CpuCacheInfoLib.c
index ae81ea9ce2..c0077d6770 100644
--- a/UefiCpuPkg/Library/CpuCacheInfoLib/CpuCacheInfoLib.c
+++ b/UefiCpuPkg/Library/CpuCacheInfoLib/CpuCacheInfoLib.c
@@ -237,7 +237,7 @@ CpuCacheInfoCollectCoreAndCacheData (
     CacheData[CacheParamLeafIndex].CacheType             = (UINT8)CacheParamEax.Bits.CacheType;
     CacheData[CacheParamLeafIndex].CacheWays             = (UINT16)CacheParamEbx.Bits.Ways;
     CacheData[CacheParamLeafIndex].FullyAssociativeCache = (UINT8)CacheParamEax.Bits.FullyAssociativeCache;
-    CacheData[CacheParamLeafIndex].DirectMappedCache     = (UINT8)CacheParamEdx.Bits.ComplexCacheIndexing;
+    CacheData[CacheParamLeafIndex].DirectMappedCache     = (UINT8)(CacheParamEdx.Bits.ComplexCacheIndexing == 0);
     CacheData[CacheParamLeafIndex].CacheShareBits        = (UINT16)CacheParamEax.Bits.MaximumAddressableIdsForLogicalProcessors;
     CacheData[CacheParamLeafIndex].CacheSizeinKB         = (CacheParamEbx.Bits.Ways + 1) *
         (CacheParamEbx.Bits.LinePartitions + 1) * (CacheParamEbx.Bits.LineSize + 1) * (CacheParamEcx + 1) / SIZE_1KB;