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ShellPkg/dblk: Honor the BlockIo alignment requirement. 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Huajing Li <huajing.li@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
This commit is contained in:
HuajingLi 2017-08-01 12:30:18 +08:00 committed by Ruiyu Ni
parent 91ec57c448
commit f11a7a5552
1 changed files with 12 additions and 5 deletions
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17
ShellPkg/Library/UefiShellDebug1CommandsLib/Dblk.c
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@ -2,7 +2,7 @@
Main file for Dblk shell Debug1 function.
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2017, 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
@ -37,6 +37,7 @@ DisplayTheBlocks(
EFI_STATUS Status;
SHELL_STATUS ShellStatus;
UINT8 *Buffer;
UINT8 *OriginalBuffer;
UINTN BufferSize;
ShellStatus = SHELL_SUCCESS;
@ -52,11 +53,17 @@ DisplayTheBlocks(
}
BufferSize = BlockIo->Media->BlockSize * BlockCount;
if(BlockIo->Media->IoAlign == 0) {
BlockIo->Media->IoAlign = 1;
}
if (BufferSize > 0) {
Buffer = AllocateZeroPool(BufferSize);
OriginalBuffer = AllocateZeroPool(BufferSize + BlockIo->Media->IoAlign);
Buffer = ALIGN_POINTER (OriginalBuffer,BlockIo->Media->IoAlign);
} else {
ShellPrintEx(-1,-1,L" BlockSize: 0x%08x, BlockCount: 0x%08x\r\n", BlockIo->Media->BlockSize, BlockCount);
Buffer = NULL;
OriginalBuffer = NULL;
Buffer = NULL;
}
Status = BlockIo->ReadBlocks(BlockIo, BlockIo->Media->MediaId, Lba, BufferSize, Buffer);
@ -78,8 +85,8 @@ DisplayTheBlocks(
ShellStatus = SHELL_DEVICE_ERROR;
}
if (Buffer != NULL) {
FreePool(Buffer);
if (OriginalBuffer != NULL) {
FreePool (OriginalBuffer);
}
gBS->CloseProtocol(BlockIoHandle, &gEfiBlockIoProtocolGuid, gImageHandle, NULL);