of the raw block devices media. Currently "El Torito CD-ROM", Legacy\r
MBR, and GPT partition schemes are supported.\r
\r
- Copyright (c) 2006 - 2007, Intel Corporation \r
- All rights reserved. This program and the accompanying materials \r
- are licensed and made available under the terms and conditions of the BSD License \r
- which accompanies this distribution. The full text of the license may be found at \r
- http://opensource.org/licenses/bsd-license.php \r
+Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "Partition.h"\r
\r
//\r
-// Partition Driver Global Variables\r
+// Partition Driver Global Variables.\r
//\r
EFI_DRIVER_BINDING_PROTOCOL gPartitionDriverBinding = {\r
PartitionDriverBindingSupported,\r
NULL\r
};\r
\r
-STATIC \r
+//\r
+// Prioritized function list to detect partition table. \r
+//\r
PARTITION_DETECT_ROUTINE mPartitionDetectRoutineTable[] = {\r
PartitionInstallGptChildHandles,\r
PartitionInstallElToritoChildHandles,\r
NULL\r
};\r
\r
-\r
-\r
/**\r
Test to see if this driver supports ControllerHandle. Any ControllerHandle\r
- than contains a BlockIo and DiskIo protocol can be supported.\r
+ than contains a BlockIo and DiskIo protocol or a BlockIo2 protocol can be\r
+ supported.\r
\r
- @param This Protocol instance pointer.\r
- @param ControllerHandle Handle of device to test\r
- @param RemainingDevicePath Optional parameter use to pick a specific child\r
- device to start.\r
+ @param[in] This Protocol instance pointer.\r
+ @param[in] ControllerHandle Handle of device to test.\r
+ @param[in] RemainingDevicePath Optional parameter use to pick a specific child\r
+ device to start.\r
\r
@retval EFI_SUCCESS This driver supports this device\r
@retval EFI_ALREADY_STARTED This driver is already running on this device\r
EFI_DISK_IO_PROTOCOL *DiskIo;\r
EFI_DEV_PATH *Node;\r
\r
+ //\r
+ // Check RemainingDevicePath validation\r
+ //\r
if (RemainingDevicePath != NULL) {\r
- Node = (EFI_DEV_PATH *) RemainingDevicePath;\r
- if (Node->DevPath.Type != MEDIA_DEVICE_PATH ||\r
+ //\r
+ // Check if RemainingDevicePath is the End of Device Path Node, \r
+ // if yes, go on checking other conditions\r
+ //\r
+ if (!IsDevicePathEnd (RemainingDevicePath)) {\r
+ //\r
+ // If RemainingDevicePath isn't the End of Device Path Node,\r
+ // check its validation\r
+ //\r
+ Node = (EFI_DEV_PATH *) RemainingDevicePath;\r
+ if (Node->DevPath.Type != MEDIA_DEVICE_PATH ||\r
Node->DevPath.SubType != MEDIA_HARDDRIVE_DP ||\r
- DevicePathNodeLength (&Node->DevPath) != sizeof (HARDDRIVE_DEVICE_PATH)\r
- ) {\r
- return EFI_UNSUPPORTED;\r
+ DevicePathNodeLength (&Node->DevPath) != sizeof (HARDDRIVE_DEVICE_PATH)) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
}\r
}\r
+\r
//\r
// Open the IO Abstraction(s) needed to perform the supported test\r
//\r
Status = gBS->OpenProtocol (\r
ControllerHandle,\r
- &gEfiDevicePathProtocolGuid,\r
- (VOID **) &ParentDevicePath,\r
+ &gEfiDiskIoProtocolGuid,\r
+ (VOID **) &DiskIo,\r
This->DriverBindingHandle,\r
ControllerHandle,\r
EFI_OPEN_PROTOCOL_BY_DRIVER\r
if (Status == EFI_ALREADY_STARTED) {\r
return EFI_SUCCESS;\r
}\r
-\r
if (EFI_ERROR (Status)) {\r
return Status;\r
}\r
// Close the I/O Abstraction(s) used to perform the supported test\r
//\r
gBS->CloseProtocol (\r
- ControllerHandle,\r
- &gEfiDevicePathProtocolGuid,\r
- This->DriverBindingHandle,\r
- ControllerHandle\r
- );\r
+ ControllerHandle,\r
+ &gEfiDiskIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
\r
//\r
- // Open the IO Abstraction(s) needed to perform the supported test\r
+ // Open the EFI Device Path protocol needed to perform the supported test\r
//\r
Status = gBS->OpenProtocol (\r
ControllerHandle,\r
- &gEfiDiskIoProtocolGuid,\r
- (VOID **) &DiskIo,\r
+ &gEfiDevicePathProtocolGuid,\r
+ (VOID **) &ParentDevicePath,\r
This->DriverBindingHandle,\r
ControllerHandle,\r
EFI_OPEN_PROTOCOL_BY_DRIVER\r
if (EFI_ERROR (Status)) {\r
return Status;\r
}\r
+\r
//\r
- // Close the I/O Abstraction(s) used to perform the supported test\r
+ // Close protocol, don't use device path protocol in the Support() function\r
//\r
gBS->CloseProtocol (\r
ControllerHandle,\r
- &gEfiDiskIoProtocolGuid,\r
+ &gEfiDevicePathProtocolGuid,\r
This->DriverBindingHandle,\r
ControllerHandle\r
);\r
ControllerHandle,\r
EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r
);\r
-\r
- return Status;\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ \r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiBlockIo2ProtocolGuid,\r
+ NULL,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ //\r
+ // According to UEFI Spec 2.3.1, if a driver is written for a disk device, \r
+ // then the EFI_BLOCK_IO_PROTOCOL and EFI_BLOCK_IO2_PROTOCOAL must be implemented.\r
+ // Currently, SCSI disk driver only produce the EFI_BLOCK_IO_PROTOCOL, it will\r
+ // not be updated until the non blocking SCSI Pass Thru Protocol is provided.\r
+ // If there is no EFI_BLOCK_IO2_PROTOCOL, skip here.\r
+ // \r
+ } \r
+ return EFI_SUCCESS; \r
}\r
\r
-\r
/**\r
- Start this driver on ControllerHandle by opening a Block IO and Disk IO\r
- protocol, reading Device Path, and creating a child handle with a\r
- Disk IO and device path protocol.\r
+ Start this driver on ControllerHandle by opening a Block IO or a Block IO2\r
+ or both, and Disk IO protocol, reading Device Path, and creating a child\r
+ handle with a Disk IO and device path protocol.\r
\r
- @param This Protocol instance pointer.\r
- @param ControllerHandle Handle of device to bind driver to\r
- @param RemainingDevicePath Optional parameter use to pick a specific child\r
- device to start.\r
+ @param[in] This Protocol instance pointer.\r
+ @param[in] ControllerHandle Handle of device to bind driver to\r
+ @param[in] RemainingDevicePath Optional parameter use to pick a specific child\r
+ device to start.\r
\r
@retval EFI_SUCCESS This driver is added to ControllerHandle\r
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle\r
EFI_STATUS Status;\r
EFI_STATUS OpenStatus;\r
EFI_BLOCK_IO_PROTOCOL *BlockIo;\r
+ EFI_BLOCK_IO2_PROTOCOL *BlockIo2;\r
EFI_DISK_IO_PROTOCOL *DiskIo;\r
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r
PARTITION_DETECT_ROUTINE *Routine;\r
+ BOOLEAN MediaPresent;\r
+ EFI_TPL OldTpl;\r
+\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK); \r
+ //\r
+ // Check RemainingDevicePath validation\r
+ //\r
+ if (RemainingDevicePath != NULL) {\r
+ //\r
+ // Check if RemainingDevicePath is the End of Device Path Node, \r
+ // if yes, return EFI_SUCCESS\r
+ //\r
+ if (IsDevicePathEnd (RemainingDevicePath)) {\r
+ Status = EFI_SUCCESS;\r
+ goto Exit;\r
+ }\r
+ }\r
\r
+ //\r
+ // Try to open BlockIO and BlockIO2. If BlockIO would be opened, continue,\r
+ // otherwise, return error.\r
+ //\r
Status = gBS->OpenProtocol (\r
ControllerHandle,\r
&gEfiBlockIoProtocolGuid,\r
EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
);\r
if (EFI_ERROR (Status)) {\r
- return Status;\r
+ goto Exit;\r
}\r
+\r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiBlockIo2ProtocolGuid,\r
+ (VOID **) &BlockIo2,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ //\r
+ // According to UEFI Spec 2.3.1, if a driver is written for a disk device, \r
+ // then the EFI_BLOCK_IO_PROTOCOL and EFI_BLOCK_IO2_PROTOCOAL must be implemented.\r
+ // Currently, SCSI disk driver only produce the EFI_BLOCK_IO_PROTOCOL, it will\r
+ // not be updated until the non blocking SCSI Pass Thru Protocol is provided.\r
+ // If there is no EFI_BLOCK_IO2_PROTOCOL, skip here.\r
+ //\r
+ }\r
+\r
//\r
- // Get the Device Path Protocol on ControllerHandle's handle\r
+ // Get the Device Path Protocol on ControllerHandle's handle.\r
//\r
Status = gBS->OpenProtocol (\r
ControllerHandle,\r
EFI_OPEN_PROTOCOL_BY_DRIVER\r
);\r
if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {\r
- return Status;\r
+ goto Exit;\r
}\r
\r
Status = gBS->OpenProtocol (\r
This->DriverBindingHandle,\r
ControllerHandle\r
);\r
- return Status;\r
+ goto Exit;\r
}\r
\r
OpenStatus = Status;\r
\r
//\r
- // If no media is present, do nothing here.\r
+ // Try to read blocks when there's media or it is removable physical partition.\r
//\r
- Status = EFI_UNSUPPORTED;\r
- if (BlockIo->Media->MediaPresent) {\r
+ Status = EFI_UNSUPPORTED;\r
+ MediaPresent = BlockIo->Media->MediaPresent;\r
+ if (BlockIo->Media->MediaPresent ||\r
+ (BlockIo->Media->RemovableMedia && !BlockIo->Media->LogicalPartition)) {\r
//\r
// Try for GPT, then El Torito, and then legacy MBR partition types. If the\r
// media supports a given partition type install child handles to represent\r
ControllerHandle,\r
DiskIo,\r
BlockIo,\r
+ BlockIo2,\r
ParentDevicePath\r
);\r
- if (!EFI_ERROR (Status) || Status == EFI_MEDIA_CHANGED) {\r
+ if (!EFI_ERROR (Status) || Status == EFI_MEDIA_CHANGED || Status == EFI_NO_MEDIA) {\r
break;\r
}\r
Routine++;\r
// driver. So don't try to close them. Otherwise, we will break the dependency\r
// between the controller and the driver set up before.\r
//\r
- if (EFI_ERROR (Status) && !EFI_ERROR (OpenStatus) && Status != EFI_MEDIA_CHANGED) {\r
+ // In the case that when the media changes on a device it will Reinstall the \r
+ // BlockIo interaface. This will cause a call to our Stop(), and a subsequent\r
+ // reentrant call to our Start() successfully. We should leave the device open\r
+ // when this happen. The "media change" case includes either the status is\r
+ // EFI_MEDIA_CHANGED or it is a "media" to "no media" change. \r
+ // \r
+ if (EFI_ERROR (Status) &&\r
+ !EFI_ERROR (OpenStatus) &&\r
+ Status != EFI_MEDIA_CHANGED &&\r
+ !(MediaPresent && Status == EFI_NO_MEDIA)) {\r
gBS->CloseProtocol (\r
ControllerHandle,\r
&gEfiDiskIoProtocolGuid,\r
This->DriverBindingHandle,\r
ControllerHandle\r
);\r
+ //\r
+ // Close Parent BlockIO2 if has.\r
+ // \r
+ gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiBlockIo2ProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
\r
gBS->CloseProtocol (\r
ControllerHandle,\r
);\r
}\r
\r
+Exit:\r
+ gBS->RestoreTPL (OldTpl);\r
return Status;\r
}\r
\r
-\r
/**\r
- Stop this driver on ControllerHandle. Support stoping any child handles\r
+ Stop this driver on ControllerHandle. Support stopping any child handles\r
created by this driver.\r
\r
@param This Protocol instance pointer.\r
EFI_STATUS Status;\r
UINTN Index;\r
EFI_BLOCK_IO_PROTOCOL *BlockIo;\r
+ EFI_BLOCK_IO2_PROTOCOL *BlockIo2;\r
BOOLEAN AllChildrenStopped;\r
PARTITION_PRIVATE_DATA *Private;\r
EFI_DISK_IO_PROTOCOL *DiskIo;\r
\r
+ BlockIo = NULL;\r
+ BlockIo2 = NULL;\r
+ Private = NULL;\r
+\r
if (NumberOfChildren == 0) {\r
//\r
// Close the bus driver\r
This->DriverBindingHandle,\r
ControllerHandle\r
);\r
+ //\r
+ // Close Parent BlockIO2 if has.\r
+ // \r
+ gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiBlockIo2ProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
\r
gBS->CloseProtocol (\r
ControllerHandle,\r
This->DriverBindingHandle,\r
ControllerHandle\r
);\r
-\r
return EFI_SUCCESS;\r
}\r
\r
AllChildrenStopped = TRUE;\r
for (Index = 0; Index < NumberOfChildren; Index++) {\r
- Status = gBS->OpenProtocol (\r
- ChildHandleBuffer[Index],\r
- &gEfiBlockIoProtocolGuid,\r
- (VOID **) &BlockIo,\r
- This->DriverBindingHandle,\r
- ControllerHandle,\r
- EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
- );\r
- if (!EFI_ERROR (Status)) {\r
-\r
- Private = PARTITION_DEVICE_FROM_BLOCK_IO_THIS (BlockIo);\r
+ gBS->OpenProtocol (\r
+ ChildHandleBuffer[Index],\r
+ &gEfiBlockIoProtocolGuid,\r
+ (VOID **) &BlockIo,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
+ );\r
+ //\r
+ // Try to locate BlockIo2.\r
+ //\r
+ gBS->OpenProtocol (\r
+ ChildHandleBuffer[Index],\r
+ &gEfiBlockIo2ProtocolGuid,\r
+ (VOID **) &BlockIo2,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
+ ); \r
\r
- //\r
- // All Software protocols have be freed from the handle so remove it.\r
- //\r
- BlockIo->FlushBlocks (BlockIo);\r
\r
- Status = gBS->CloseProtocol (\r
- ControllerHandle,\r
- &gEfiDiskIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- ChildHandleBuffer[Index]\r
- );\r
+ Private = PARTITION_DEVICE_FROM_BLOCK_IO_THIS (BlockIo);\r
\r
+ Status = gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiDiskIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ChildHandleBuffer[Index]\r
+ );\r
+ //\r
+ // All Software protocols have be freed from the handle so remove it.\r
+ // Remove the BlockIo Protocol if has.\r
+ // Remove the BlockIo2 Protocol if has.\r
+ //\r
+ if (BlockIo2 != NULL) {\r
+ BlockIo->FlushBlocks (BlockIo);\r
+ BlockIo2->FlushBlocksEx (BlockIo2, NULL);\r
Status = gBS->UninstallMultipleProtocolInterfaces (\r
- ChildHandleBuffer[Index],\r
- &gEfiDevicePathProtocolGuid,\r
- Private->DevicePath,\r
- &gEfiBlockIoProtocolGuid,\r
- &Private->BlockIo,\r
- Private->EspGuid,\r
- NULL,\r
- NULL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- gBS->OpenProtocol (\r
- ControllerHandle,\r
- &gEfiDiskIoProtocolGuid,\r
- (VOID **) &DiskIo,\r
- This->DriverBindingHandle,\r
- ChildHandleBuffer[Index],\r
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
- );\r
- } else {\r
- FreePool (Private->DevicePath);\r
- FreePool (Private);\r
- }\r
+ ChildHandleBuffer[Index],\r
+ &gEfiDevicePathProtocolGuid,\r
+ Private->DevicePath,\r
+ &gEfiBlockIoProtocolGuid,\r
+ &Private->BlockIo,\r
+ &gEfiBlockIo2ProtocolGuid,\r
+ &Private->BlockIo2,\r
+ Private->EspGuid,\r
+ NULL,\r
+ NULL\r
+ );\r
+ } else {\r
+ BlockIo->FlushBlocks (BlockIo);\r
+ Status = gBS->UninstallMultipleProtocolInterfaces (\r
+ ChildHandleBuffer[Index],\r
+ &gEfiDevicePathProtocolGuid,\r
+ Private->DevicePath,\r
+ &gEfiBlockIoProtocolGuid,\r
+ &Private->BlockIo,\r
+ Private->EspGuid,\r
+ NULL,\r
+ NULL\r
+ );\r
+ }\r
\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiDiskIoProtocolGuid,\r
+ (VOID **) &DiskIo,\r
+ This->DriverBindingHandle,\r
+ ChildHandleBuffer[Index],\r
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
+ );\r
+ } else {\r
+ FreePool (Private->DevicePath);\r
+ FreePool (Private);\r
}\r
\r
if (EFI_ERROR (Status)) {\r
not be reset.\r
\r
**/\r
-STATIC\r
EFI_STATUS\r
EFIAPI\r
PartitionReset (\r
);\r
}\r
\r
+/**\r
+ Probe the media status and return EFI_NO_MEDIA or EFI_MEDIA_CHANGED\r
+ for no media or media change case. Otherwise DefaultStatus is returned.\r
+\r
+ @param DiskIo Pointer to the DiskIo instance.\r
+ @param MediaId Id of the media, changes every time the media is replaced.\r
+ @param DefaultStatus The default status to return when it's not the no media\r
+ or media change case.\r
+\r
+ @retval EFI_NO_MEDIA There is no media.\r
+ @retval EFI_MEDIA_CHANGED The media was changed.\r
+ @retval others The default status to return.\r
+**/\r
+EFI_STATUS\r
+ProbeMediaStatus (\r
+ IN EFI_DISK_IO_PROTOCOL *DiskIo,\r
+ IN UINT32 MediaId,\r
+ IN EFI_STATUS DefaultStatus\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+\r
+ //\r
+ // Read 1 byte from offset 0 but passing NULL as buffer pointer\r
+ //\r
+ Status = DiskIo->ReadDisk (DiskIo, MediaId, 0, 1, NULL);\r
+ if ((Status == EFI_NO_MEDIA) || (Status == EFI_MEDIA_CHANGED)) {\r
+ return Status;\r
+ }\r
+ return DefaultStatus;\r
+}\r
\r
/**\r
Read by using the Disk IO protocol on the parent device. Lba addresses\r
valid for the device.\r
\r
**/\r
-STATIC\r
EFI_STATUS\r
EFIAPI\r
PartitionReadBlocks (\r
Private = PARTITION_DEVICE_FROM_BLOCK_IO_THIS (This);\r
\r
if (BufferSize % Private->BlockSize != 0) {\r
- return EFI_BAD_BUFFER_SIZE;\r
+ return ProbeMediaStatus (Private->DiskIo, MediaId, EFI_BAD_BUFFER_SIZE);\r
}\r
\r
Offset = MultU64x32 (Lba, Private->BlockSize) + Private->Start;\r
if (Offset + BufferSize > Private->End) {\r
- return EFI_INVALID_PARAMETER;\r
+ return ProbeMediaStatus (Private->DiskIo, MediaId, EFI_INVALID_PARAMETER);\r
}\r
//\r
// Because some kinds of partition have different block size from their parent\r
Write by using the Disk IO protocol on the parent device. Lba addresses\r
must be converted to byte offsets.\r
\r
- @param This Protocol instance pointer.\r
- @param MediaId Id of the media, changes every time the media is replaced.\r
- @param Lba The starting Logical Block Address to read from\r
- @param BufferSize Size of Buffer, must be a multiple of device block size.\r
- @param Buffer Buffer containing read data\r
+ @param[in] This Protocol instance pointer.\r
+ @param[in] MediaId Id of the media, changes every time the media is replaced.\r
+ @param[in] Lba The starting Logical Block Address to read from\r
+ @param[in] BufferSize Size of Buffer, must be a multiple of device block size.\r
+ @param[in] Buffer Buffer containing data to be written to device.\r
\r
@retval EFI_SUCCESS The data was written correctly to the device.\r
@retval EFI_WRITE_PROTECTED The device can not be written to.\r
valid for the device.\r
\r
**/\r
-STATIC\r
EFI_STATUS\r
EFIAPI\r
PartitionWriteBlocks (\r
IN UINT32 MediaId,\r
IN EFI_LBA Lba,\r
IN UINTN BufferSize,\r
- OUT VOID *Buffer\r
+ IN VOID *Buffer\r
)\r
{\r
PARTITION_PRIVATE_DATA *Private;\r
Private = PARTITION_DEVICE_FROM_BLOCK_IO_THIS (This);\r
\r
if (BufferSize % Private->BlockSize != 0) {\r
- return EFI_BAD_BUFFER_SIZE;\r
+ return ProbeMediaStatus (Private->DiskIo, MediaId, EFI_BAD_BUFFER_SIZE);\r
}\r
\r
Offset = MultU64x32 (Lba, Private->BlockSize) + Private->Start;\r
if (Offset + BufferSize > Private->End) {\r
- return EFI_INVALID_PARAMETER;\r
+ return ProbeMediaStatus (Private->DiskIo, MediaId, EFI_INVALID_PARAMETER);\r
}\r
//\r
// Because some kinds of partition have different block size from their parent\r
@retval EFI_NO_MEDIA There is no media in the device.\r
\r
**/\r
-STATIC\r
EFI_STATUS\r
EFIAPI\r
PartitionFlushBlocks (\r
return Private->ParentBlockIo->FlushBlocks (Private->ParentBlockIo);\r
}\r
\r
+/**\r
+ Reset the Block Device throught Block I/O2 protocol.\r
+\r
+ @param This Protocol instance pointer.\r
+ @param ExtendedVerification Driver may perform diagnostics on reset.\r
+\r
+ @retval EFI_SUCCESS The device was reset.\r
+ @retval EFI_DEVICE_ERROR The device is not functioning properly and could\r
+ not be reset.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PartitionResetEx (\r
+ IN EFI_BLOCK_IO2_PROTOCOL *This,\r
+ IN BOOLEAN ExtendedVerification\r
+ )\r
+{\r
+ PARTITION_PRIVATE_DATA *Private;\r
+\r
+ Private = PARTITION_DEVICE_FROM_BLOCK_IO2_THIS (This);\r
+\r
+ return Private->ParentBlockIo2->Reset (\r
+ Private->ParentBlockIo2,\r
+ ExtendedVerification\r
+ );\r
+}\r
+\r
+/**\r
+ Read BufferSize bytes from Lba into Buffer.\r
+ \r
+ This function reads the requested number of blocks from the device. All the\r
+ blocks are read, or an error is returned.\r
+ If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_or EFI_MEDIA_CHANGED is returned and\r
+ non-blocking I/O is being used, the Event associated with this request will\r
+ not be signaled.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[in] MediaId Id of the media, changes every time the media is \r
+ replaced.\r
+ @param[in] Lba The starting Logical Block Address to read from.\r
+ @param[in, out] Token A pointer to the token associated with the transaction.\r
+ @param[in] BufferSize Size of Buffer, must be a multiple of device block size. \r
+ @param[out] Buffer A pointer to the destination buffer for the data. The \r
+ caller is responsible for either having implicit or \r
+ explicit ownership of the buffer.\r
+\r
+ @retval EFI_SUCCESS The read request was queued if Token->Event is\r
+ not NULL.The data was read correctly from the\r
+ device if the Token->Event is NULL.\r
+ @retval EFI_DEVICE_ERROR The device reported an error while performing\r
+ the read.\r
+ @retval EFI_NO_MEDIA There is no media in the device.\r
+ @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the\r
+ intrinsic block size of the device.\r
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid, \r
+ or the buffer is not on proper alignment.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r
+ of resources.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PartitionReadBlocksEx (\r
+ IN EFI_BLOCK_IO2_PROTOCOL *This,\r
+ IN UINT32 MediaId,\r
+ IN EFI_LBA Lba,\r
+ IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r
+ IN UINTN BufferSize,\r
+ OUT VOID *Buffer\r
+ )\r
+{\r
+ PARTITION_PRIVATE_DATA *Private;\r
+ UINT64 Offset;\r
+ UINT32 UnderRun;\r
+\r
+ if (Token == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ Private = PARTITION_DEVICE_FROM_BLOCK_IO2_THIS (This);\r
+ if (BufferSize % Private->BlockSize != 0) {\r
+ return EFI_BAD_BUFFER_SIZE;\r
+ }\r
+\r
+ Offset = MultU64x32 (Lba, Private->BlockSize) + Private->Start;\r
+ if (Offset + BufferSize > Private->End) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ //\r
+ // Since the BlockIO2 call Parent BlockIO2 directly, so here the offset must\r
+ // be multiple of BlockSize. If the Spec will be updated the DiskIO to support\r
+ // BlockIO2, this limitation will be removed and call DiskIO here.\r
+ //\r
+ Lba = DivU64x32Remainder (Offset, Private->BlockSize, &UnderRun);\r
+ if (UnderRun != 0) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Because some partitions have different block size from their parent\r
+ // device, in that case the Block I/O2 couldn't be called.\r
+ //\r
+ if (Private->BlockSize != Private->ParentBlockIo->Media->BlockSize) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ return Private->ParentBlockIo2->ReadBlocksEx (Private->ParentBlockIo2, MediaId, Lba, Token, BufferSize, Buffer);\r
+}\r
+\r
+/**\r
+ Write BufferSize bytes from Lba into Buffer.\r
+\r
+ This function writes the requested number of blocks to the device. All blocks\r
+ are written, or an error is returned.If EFI_DEVICE_ERROR, EFI_NO_MEDIA,\r
+ EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is\r
+ being used, the Event associated with this request will not be signaled.\r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[in] MediaId The media ID that the write request is for.\r
+ @param[in] Lba The starting logical block address to be written. The\r
+ caller is responsible for writing to only legitimate\r
+ locations.\r
+ @param[in, out] Token A pointer to the token associated with the transaction.\r
+ @param[in] BufferSize Size of Buffer, must be a multiple of device block size.\r
+ @param[in] Buffer A pointer to the source buffer for the data.\r
+\r
+ @retval EFI_SUCCESS The write request was queued if Event is not NULL.\r
+ The data was written correctly to the device if\r
+ the Event is NULL.\r
+ @retval EFI_WRITE_PROTECTED The device can not be written to.\r
+ @retval EFI_NO_MEDIA There is no media in the device.\r
+ @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device.\r
+ @retval EFI_DEVICE_ERROR The device reported an error while performing the write.\r
+ @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.\r
+ @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid, \r
+ or the buffer is not on proper alignment.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r
+ of resources.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PartitionWriteBlocksEx (\r
+ IN EFI_BLOCK_IO2_PROTOCOL *This,\r
+ IN UINT32 MediaId,\r
+ IN EFI_LBA Lba,\r
+ IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r
+ IN UINTN BufferSize,\r
+ IN VOID *Buffer\r
+ )\r
+{\r
+ PARTITION_PRIVATE_DATA *Private;\r
+ UINT64 Offset;\r
+ UINT32 UnderRun;\r
+\r
+ if (Token == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ Private = PARTITION_DEVICE_FROM_BLOCK_IO2_THIS (This);\r
+ if (BufferSize % Private->BlockSize != 0) {\r
+ return EFI_BAD_BUFFER_SIZE;\r
+ }\r
+\r
+ Offset = MultU64x32 (Lba, Private->BlockSize) + Private->Start;\r
+ if (Offset + BufferSize > Private->End) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ //\r
+ // Since the BlockIO2 call Parent BlockIO2 directly, so here the offset must\r
+ // be multiple of BlockSize. If the Spec will be updated the DiskIO to support\r
+ // BlockIO2, this limitation will be removed and call DiskIO here.\r
+ //\r
+ Lba = DivU64x32Remainder (Offset, Private->BlockSize, &UnderRun);\r
+ if (UnderRun != 0) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // Because some kinds of partition have different block size from their parent,\r
+ // in that case it couldn't call parent Block I/O2. \r
+ //\r
+ if (Private->BlockSize != Private->ParentBlockIo->Media->BlockSize) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ return Private->ParentBlockIo2->WriteBlocksEx (Private->ParentBlockIo2, MediaId, Lba, Token, BufferSize, Buffer);\r
+}\r
+\r
+/**\r
+ Flush the Block Device.\r
+ \r
+ If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED\r
+ is returned and non-blocking I/O is being used, the Event associated with\r
+ this request will not be signaled. \r
+\r
+ @param[in] This Indicates a pointer to the calling context.\r
+ @param[in,out] Token A pointer to the token associated with the transaction\r
+\r
+ @retval EFI_SUCCESS The flush request was queued if Event is not NULL.\r
+ All outstanding data was written correctly to the\r
+ device if the Event is NULL.\r
+ @retval EFI_DEVICE_ERROR The device reported an error while writting back\r
+ the data.\r
+ @retval EFI_WRITE_PROTECTED The device cannot be written to.\r
+ @retval EFI_NO_MEDIA There is no media in the device.\r
+ @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r
+ of resources.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PartitionFlushBlocksEx (\r
+ IN EFI_BLOCK_IO2_PROTOCOL *This,\r
+ IN OUT EFI_BLOCK_IO2_TOKEN *Token\r
+ )\r
+{\r
+ PARTITION_PRIVATE_DATA *Private;\r
+\r
+ Private = PARTITION_DEVICE_FROM_BLOCK_IO2_THIS (This);\r
+\r
+ //\r
+ // Because some kinds of partition have different block size from their parent,\r
+ // in that case it couldn't call parent Block I/O2. \r
+ //\r
+ if (Private->BlockSize != Private->ParentBlockIo->Media->BlockSize) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ return Private->ParentBlockIo2->FlushBlocksEx (Private->ParentBlockIo2, Token);\r
+}\r
\r
\r
/**\r
bytes Start to End of the Parent Block IO device.\r
\r
@param[in] This Protocol instance pointer.\r
- @param[in] This Calling context.\r
- @param[in] ParentHandle Parent Handle for new child\r
- @param[in] ParentDiskIo Parent DiskIo interface\r
- @param[in] ParentBlockIo Parent BlockIo interface\r
- @param[in] ParentDevicePath Parent Device Path\r
- @param[in] DevicePathNode Child Device Path node\r
- @param[in] Start Start Block\r
- @param[in] End End Block\r
- @param[in] BlockSize Child block size\r
- @param[in] InstallEspGuid Flag to install EFI System Partition GUID on handle\r
-\r
- @retval EFI_SUCCESS A child handle was added\r
- @retval other A child handle was not added\r
+ @param[in] ParentHandle Parent Handle for new child.\r
+ @param[in] ParentDiskIo Parent DiskIo interface.\r
+ @param[in] ParentBlockIo Parent BlockIo interface.\r
+ @param[in] ParentBlockIo2 Parent BlockIo2 interface.\r
+ @param[in] ParentDevicePath Parent Device Path.\r
+ @param[in] DevicePathNode Child Device Path node.\r
+ @param[in] Start Start Block.\r
+ @param[in] End End Block.\r
+ @param[in] BlockSize Child block size.\r
+ @param[in] InstallEspGuid Flag to install EFI System Partition GUID on handle.\r
+\r
+ @retval EFI_SUCCESS A child handle was added.\r
+ @retval other A child handle was not added.\r
\r
**/\r
EFI_STATUS\r
IN EFI_HANDLE ParentHandle,\r
IN EFI_DISK_IO_PROTOCOL *ParentDiskIo,\r
IN EFI_BLOCK_IO_PROTOCOL *ParentBlockIo,\r
+ IN EFI_BLOCK_IO2_PROTOCOL *ParentBlockIo2,\r
IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,\r
IN EFI_DEVICE_PATH_PROTOCOL *DevicePathNode,\r
IN EFI_LBA Start,\r
EFI_STATUS Status;\r
PARTITION_PRIVATE_DATA *Private;\r
\r
+ Status = EFI_SUCCESS;\r
Private = AllocateZeroPool (sizeof (PARTITION_PRIVATE_DATA));\r
if (Private == NULL) {\r
return EFI_OUT_OF_RESOURCES;\r
\r
Private->BlockSize = BlockSize;\r
Private->ParentBlockIo = ParentBlockIo;\r
+ Private->ParentBlockIo2 = ParentBlockIo2;\r
Private->DiskIo = ParentDiskIo;\r
\r
- Private->BlockIo.Revision = EFI_BLOCK_IO_PROTOCOL_REVISION;\r
-\r
+ //\r
+ // Set the BlockIO into Private Data.\r
+ //\r
+ Private->BlockIo.Revision = ParentBlockIo->Revision;\r
+ \r
Private->BlockIo.Media = &Private->Media;\r
CopyMem (Private->BlockIo.Media, ParentBlockIo->Media, sizeof (EFI_BLOCK_IO_MEDIA));\r
+\r
+ Private->BlockIo.Reset = PartitionReset;\r
+ Private->BlockIo.ReadBlocks = PartitionReadBlocks;\r
+ Private->BlockIo.WriteBlocks = PartitionWriteBlocks;\r
+ Private->BlockIo.FlushBlocks = PartitionFlushBlocks;\r
+\r
+ //\r
+ // Set the BlockIO2 into Private Data.\r
+ //\r
+ if (Private->ParentBlockIo2 != NULL) {\r
+ Private->BlockIo2.Media = &Private->Media2;\r
+ CopyMem (Private->BlockIo2.Media, ParentBlockIo2->Media, sizeof (EFI_BLOCK_IO_MEDIA));\r
+\r
+ Private->BlockIo2.Reset = PartitionResetEx;\r
+ Private->BlockIo2.ReadBlocksEx = PartitionReadBlocksEx;\r
+ Private->BlockIo2.WriteBlocksEx = PartitionWriteBlocksEx;\r
+ Private->BlockIo2.FlushBlocksEx = PartitionFlushBlocksEx; \r
+ }\r
+\r
+ Private->Media.IoAlign = 0;\r
Private->Media.LogicalPartition = TRUE;\r
Private->Media.LastBlock = DivU64x32 (\r
MultU64x32 (\r
End - Start + 1,\r
ParentBlockIo->Media->BlockSize\r
),\r
- BlockSize\r
+ BlockSize\r
) - 1;\r
\r
- Private->Media.BlockSize = (UINT32) BlockSize;\r
+ Private->Media.BlockSize = (UINT32) BlockSize;\r
\r
- Private->BlockIo.Reset = PartitionReset;\r
- Private->BlockIo.ReadBlocks = PartitionReadBlocks;\r
- Private->BlockIo.WriteBlocks = PartitionWriteBlocks;\r
- Private->BlockIo.FlushBlocks = PartitionFlushBlocks;\r
+ //\r
+ // For BlockIO2, it should keep the same alignment with the parent BlockIO2's.\r
+ //\r
+ Private->Media2.LogicalPartition = TRUE;\r
+ Private->Media2.LastBlock = Private->Media.LastBlock;\r
+ Private->Media2.BlockSize = (UINT32) BlockSize;\r
+\r
+ //\r
+ // Per UEFI Spec, LowestAlignedLba and LogicalBlocksPerPhysicalBlock must be 0\r
+ // for logical partitions.\r
+ //\r
+ if (Private->BlockIo.Revision >= EFI_BLOCK_IO_PROTOCOL_REVISION2) {\r
+ Private->BlockIo.Media->LowestAlignedLba = 0;\r
+ Private->BlockIo.Media->LogicalBlocksPerPhysicalBlock = 0;\r
+ }\r
\r
- Private->DevicePath = AppendDevicePathNode (ParentDevicePath, DevicePathNode);\r
+ Private->DevicePath = AppendDevicePathNode (ParentDevicePath, DevicePathNode);\r
\r
if (Private->DevicePath == NULL) {\r
FreePool (Private);\r
//\r
Private->EspGuid = NULL;\r
}\r
+\r
//\r
- // Create the new handle\r
+ // Create the new handle. \r
+ // BlockIO2 will be installed on the condition that the blocksize of parent BlockIO \r
+ // is same with the child BlockIO's. Instead of calling the DiskIO, the child BlockIO2 \r
+ // directly call the parent BlockIO and doesn't handle the different block size issue.\r
+ // If SPEC will update the DiskIO to support the Non-Blocking model, the BlockIO2 will call\r
+ // DiskIO to handle the blocksize unequal issue and the limitation will be remove from\r
+ // here.\r
//\r
Private->Handle = NULL;\r
- Status = gBS->InstallMultipleProtocolInterfaces (\r
- &Private->Handle,\r
- &gEfiDevicePathProtocolGuid,\r
- Private->DevicePath,\r
- &gEfiBlockIoProtocolGuid,\r
- &Private->BlockIo,\r
- Private->EspGuid,\r
- NULL,\r
- NULL\r
- );\r
+ if ((Private->ParentBlockIo2 != NULL) &&\r
+ (Private->ParentBlockIo2->Media->BlockSize == BlockSize)\r
+ ) {\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &Private->Handle,\r
+ &gEfiDevicePathProtocolGuid,\r
+ Private->DevicePath,\r
+ &gEfiBlockIoProtocolGuid,\r
+ &Private->BlockIo,\r
+ &gEfiBlockIo2ProtocolGuid,\r
+ &Private->BlockIo2,\r
+ Private->EspGuid,\r
+ NULL,\r
+ NULL\r
+ );\r
+ } else { \r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &Private->Handle,\r
+ &gEfiDevicePathProtocolGuid,\r
+ Private->DevicePath,\r
+ &gEfiBlockIoProtocolGuid,\r
+ &Private->BlockIo,\r
+ Private->EspGuid,\r
+ NULL,\r
+ NULL\r
+ );\r
+ }\r
\r
if (!EFI_ERROR (Status)) {\r
//\r
//\r
// Install driver model protocol(s).\r
//\r
- Status = EfiLibInstallAllDriverProtocols (\r
+ Status = EfiLibInstallDriverBindingComponentName2 (\r
ImageHandle,\r
SystemTable,\r
&gPartitionDriverBinding,\r
ImageHandle,\r
&gPartitionComponentName,\r
- NULL,\r
- NULL\r
+ &gPartitionComponentName2\r
);\r
ASSERT_EFI_ERROR (Status);\r
\r