Set the BlockIo.Media.IoAlign to 0 because the BlockIo produced by Partition driver consumes DiskIo for read/write operation which doesn't have IO alignment requirement.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11493 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 7 insertions, 2 deletions

diff --git a/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c b/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c
index 1b0c3b36eb..0a5d3d28f0 100644
--- a/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c
+++ b/MdeModulePkg/Universal/Disk/PartitionDxe/Partition.c
@@ -4,7 +4,7 @@
   of the raw block devices media. Currently "El Torito CD-ROM", Legacy

   MBR, and GPT partition schemes are supported.

 

-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>

+Copyright (c) 2006 - 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

@@ -648,6 +648,11 @@ PartitionInstallChildHandle (
   Private->BlockIo.Media    = &Private->Media;

   CopyMem (Private->BlockIo.Media, ParentBlockIo->Media, sizeof (EFI_BLOCK_IO_MEDIA));

   Private->Media.LogicalPartition = TRUE;

+

+  //

+  // Logical BlockIo instance doesn't have IoAlign restriction because it implements block io operation based on DiskIo

+  //

+  Private->Media.IoAlign   = 0;

   Private->Media.LastBlock = DivU64x32 (

                                MultU64x32 (

                                  End - Start + 1,

@@ -656,7 +661,7 @@ PartitionInstallChildHandle (
                                BlockSize

                                ) - 1;

 

-  Private->Media.BlockSize      = (UINT32) BlockSize;

+  Private->Media.BlockSize = (UINT32) BlockSize;

 

   //

   // Per UEFI Spec, LowestAlignedLba and LogicalBlocksPerPhysicalBlock must be 0