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authorvanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>2011-12-01 06:08:25 +0000
committervanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>2011-12-01 06:08:25 +0000
commit36de860619c2c3e8bc9f974d1296eb81411049f1 (patch)
tree2fc754a895835404bcf72ec24b24af99fc0ada1f /UefiCpuPkg
parent209e6e3174d5889640c2e906f343799fd067cd55 (diff)
downloadedk2-platforms-36de860619c2c3e8bc9f974d1296eb81411049f1.tar.xz
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
Diffstat (limited to 'UefiCpuPkg')
-rw-r--r--UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.c5
1 files 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;
}