From 36de860619c2c3e8bc9f974d1296eb81411049f1 Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Thu, 1 Dec 2011 06:08:25 +0000
Subject: [PATCH] Update the check condition to allows UINT64 and INT64 data
 types to be 32-bit aligned on IA32 system.

Signed-off-by: vanjeff
Reviewed-by: mdkinney




git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12808 6f19259b-4bc3-4df7-8a09-765794883524
---
 UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.c b/UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.c
index fd4b2e8524..802342caae 100644
--- a/UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.c
+++ b/UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.c
@@ -1,7 +1,7 @@
 /** @file
   Produces the CPU I/O 2 Protocol.
 
-Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials                          
 are licensed and made available under the terms and conditions of the BSD License         
 which accompanies this distribution.  The full text of the license may be found at        
@@ -175,8 +175,9 @@ CpuIoCheckParameter (
 
   //
   // Check to see if Buffer is aligned
+  // (IA-32 allows UINT64 and INT64 data types to be 32-bit aligned.)
   //
-  if (((UINTN)Buffer & (mInStride[Width] - 1)) != 0) {
+  if (((UINTN)Buffer & ((MIN (sizeof (UINTN), mInStride[Width])  - 1))) != 0) {
     return EFI_UNSUPPORTED;
   }