sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add BlockIO2 Protocol.

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11606 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qianouyang
2011-05-03 10:31:41 +00:00
parent c89ea31f52
commit 490b5ea10b
17 changed files with 2892 additions and 1188 deletions
Download Patch File Download Diff File Expand all files Collapse all files

59
MdeModulePkg/Universal/Disk/PartitionDxe/Mbr.c
View File

@@ -11,7 +11,7 @@
always on the first sector of a media. The first sector also contains
the legacy boot strap code.
Copyright (c) 2006 - 2009, 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
@@ -101,11 +101,12 @@ PartitionValidMbr (
/**
Install child handles if the Handle supports MBR format.
@param This Calling context.
@param Handle Parent Handle.
@param DiskIo Parent DiskIo interface.
@param BlockIo Parent BlockIo interface.
@param DevicePath Parent Device Path.
@param[in] This Calling context.
@param[in] Handle Parent Handle.
@param[in] DiskIo Parent DiskIo interface.
@param[in] BlockIo Parent BlockIo interface.
@param[in] BlockIo2 Parent BlockIo2 interface.
@param[in] DevicePath Parent Device Path.
@retval EFI_SUCCESS A child handle was added.
@retval EFI_MEDIA_CHANGED Media change was detected.
@@ -118,6 +119,7 @@ PartitionInstallMbrChildHandles (
IN EFI_HANDLE Handle,
IN EFI_DISK_IO_PROTOCOL *DiskIo,
IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
IN EFI_BLOCK_IO2_PROTOCOL *BlockIo2,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
)
{
@@ -131,26 +133,33 @@ PartitionInstallMbrChildHandles (
UINT32 PartitionNumber;
EFI_DEVICE_PATH_PROTOCOL *DevicePathNode;
EFI_DEVICE_PATH_PROTOCOL *LastDevicePathNode;
UINT32 BlockSize;
UINT32 MediaId;
EFI_LBA LastBlock;
Found = EFI_NOT_FOUND;
Mbr = AllocatePool (BlockIo->Media->BlockSize);
BlockSize = BlockIo->Media->BlockSize;
MediaId = BlockIo->Media->MediaId;
LastBlock = BlockIo->Media->LastBlock;
Mbr = AllocatePool (BlockSize);
if (Mbr == NULL) {
return Found;
}
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
MediaId,
0,
BlockIo->Media->BlockSize,
BlockSize,
Mbr
);
if (EFI_ERROR (Status)) {
Found = Status;
goto Done;
}
if (!PartitionValidMbr (Mbr, BlockIo->Media->LastBlock)) {
if (!PartitionValidMbr (Mbr, LastBlock)) {
goto Done;
}
//
@@ -218,6 +227,7 @@ PartitionInstallMbrChildHandles (
Handle,
DiskIo,
BlockIo,
BlockIo2,
DevicePath,
(EFI_DEVICE_PATH_PROTOCOL *) &HdDev,
HdDev.PartitionStart,
@@ -241,9 +251,9 @@ PartitionInstallMbrChildHandles (
Status = DiskIo->ReadDisk (
DiskIo,
BlockIo->Media->MediaId,
MultU64x32 (ExtMbrStartingLba, BlockIo->Media->BlockSize),
BlockIo->Media->BlockSize,
MediaId,
MultU64x32 (ExtMbrStartingLba, BlockSize),
BlockSize,
Mbr
);
if (EFI_ERROR (Status)) {
@@ -274,17 +284,18 @@ PartitionInstallMbrChildHandles (
*((UINT32 *) &HdDev.Signature[0]) = 0;
Status = PartitionInstallChildHandle (
This,
Handle,
DiskIo,
BlockIo,
DevicePath,
(EFI_DEVICE_PATH_PROTOCOL *) &HdDev,
HdDev.PartitionStart - ParentHdDev.PartitionStart,
HdDev.PartitionStart - ParentHdDev.PartitionStart + HdDev.PartitionSize - 1,
MBR_SIZE,
(BOOLEAN) (Mbr->Partition[0].OSIndicator == EFI_PARTITION)
);
This,
Handle,
DiskIo,
BlockIo,
BlockIo2,
DevicePath,
(EFI_DEVICE_PATH_PROTOCOL *) &HdDev,
HdDev.PartitionStart - ParentHdDev.PartitionStart,
HdDev.PartitionStart - ParentHdDev.PartitionStart + HdDev.PartitionSize - 1,
MBR_SIZE,
(BOOLEAN) (Mbr->Partition[0].OSIndicator == EFI_PARTITION)
);
if (!EFI_ERROR (Status)) {
Found = EFI_SUCCESS;
}