commit 8e2018f944ed18400f468fd9380284d665535481
author Jian J Wang <jian.j.wang@intel.com> Sat Sep 08 10:43:00 2018 +0800
committer Jian J Wang <jian.j.wang@intel.com> Mon Sep 10 17:08:22 2018 +0800
tree 87860e86e632575d2ab29879a5b873e2cdb95b7d
parent 51d0100b3c711554f28ff990f484e79e053fd518

UefiCpuPkg/CpuDxe: fix an incorrect bit-wise operation

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1164

The left operand is 64-bit but right operand could be 32-bit.
A typecast is a must because of '~' op before it.

Cc: Hao A Wu <hao.a.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>

UefiCpuPkg/CpuDxe/CpuPageTable.c

diff --git a/UefiCpuPkg/CpuDxe/CpuPageTable.c b/UefiCpuPkg/CpuDxe/CpuPageTable.c
index ef6e080..0a980b9 100644
--- a/UefiCpuPkg/CpuDxe/CpuPageTable.c
+++ b/UefiCpuPkg/CpuDxe/CpuPageTable.c
@@ -1181,7 +1181,7 @@
 

   for (PFEntry = 0; PFEntry < mPFEntryCount[CpuIndex]; PFEntry++) {

     if (mLastPFEntryPointer[CpuIndex][PFEntry] != NULL) {

-      *mLastPFEntryPointer[CpuIndex][PFEntry] &= ~IA32_PG_P;

+      *mLastPFEntryPointer[CpuIndex][PFEntry] &= ~(UINT64)IA32_PG_P;

     }

   }