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Update the check condition to allows 64-bit operation's data buffer not to be 64-bit aligned on IA32 system. 

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




git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12809 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff 2011-12-01 06:12:28 +00:00
parent 36de860619
commit 20f6ac147c
1 changed files with 3 additions and 2 deletions
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5
IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.c
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@ -1,7 +1,7 @@
/** @file
Uses the services of the I/O Library to produce the CPU I/O Protocol
Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 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;
}