/** @file\r
Partition driver that produces logical BlockIo devices from a physical\r
BlockIo device. The logical BlockIo devices are based on the format\r
- of the raw block devices media. Currently "El Torito CD-ROM", Legacy\r
+ of the raw block devices media. Currently "El Torito CD-ROM", UDF, Legacy\r
MBR, and GPT partition schemes are supported.\r
\r
-Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2018 Qualcomm Datacenter Technologies, Inc.\r
+Copyright (c) 2006 - 2018, 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
PartitionDriverBindingSupported,\r
PartitionDriverBindingStart,\r
PartitionDriverBindingStop,\r
- 0xa,\r
+ //\r
+ // Grub4Dos copies the BPB of the first partition to the MBR. If the\r
+ // DriverBindingStart() of the Fat driver gets run before that of Partition\r
+ // driver only the first partition can be recognized.\r
+ // Let the driver binding version of Partition driver be higher than that of\r
+ // Fat driver to make sure the DriverBindingStart() of the Partition driver\r
+ // gets run before that of Fat driver so that all the partitions can be recognized.\r
+ //\r
+ 0xb,\r
NULL,\r
NULL\r
};\r
\r
//\r
-// Prioritized function list to detect partition table. \r
+// Prioritized function list to detect partition table.\r
//\r
PARTITION_DETECT_ROUTINE mPartitionDetectRoutineTable[] = {\r
PartitionInstallGptChildHandles,\r
- PartitionInstallElToritoChildHandles,\r
PartitionInstallMbrChildHandles,\r
+ PartitionInstallUdfChildHandles,\r
NULL\r
};\r
\r
//\r
if (RemainingDevicePath != NULL) {\r
//\r
- // Check if RemainingDevicePath is the End of Device Path Node, \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
ControllerHandle,\r
EFI_OPEN_PROTOCOL_TEST_PROTOCOL\r
);\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
+ return Status;\r
}\r
\r
/**\r
EFI_BLOCK_IO_PROTOCOL *BlockIo;\r
EFI_BLOCK_IO2_PROTOCOL *BlockIo2;\r
EFI_DISK_IO_PROTOCOL *DiskIo;\r
+ EFI_DISK_IO2_PROTOCOL *DiskIo2;\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
+ BlockIo2 = NULL;\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
+ // Check if RemainingDevicePath is the End of Device Path Node,\r
// if yes, return EFI_SUCCESS\r
//\r
if (IsDevicePathEnd (RemainingDevicePath)) {\r
(VOID **) &BlockIo2,\r
This->DriverBindingHandle,\r
ControllerHandle,\r
- EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ EFI_OPEN_PROTOCOL_GET_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
+ BlockIo2 = NULL;\r
}\r
\r
//\r
goto Exit;\r
}\r
\r
+ //\r
+ // Get the DiskIo and DiskIo2.\r
+ //\r
Status = gBS->OpenProtocol (\r
ControllerHandle,\r
&gEfiDiskIoProtocolGuid,\r
\r
OpenStatus = Status;\r
\r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiDiskIo2ProtocolGuid,\r
+ (VOID **) &DiskIo2,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {\r
+ DiskIo2 = NULL;\r
+ }\r
+\r
//\r
// Try to read blocks when there's media or it is removable physical partition.\r
//\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
- // the partitions described by the media.\r
+ // Try for GPT, then legacy MBR partition types, and then UDF and El Torito.\r
+ // If the media supports a given partition type install child handles to\r
+ // represent the partitions described by the media.\r
//\r
Routine = &mPartitionDetectRoutineTable[0];\r
while (*Routine != NULL) {\r
This,\r
ControllerHandle,\r
DiskIo,\r
+ DiskIo2,\r
BlockIo,\r
BlockIo2,\r
ParentDevicePath\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
- // In the case that when the media changes on a device it will Reinstall the \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
+ // 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
ControllerHandle\r
);\r
//\r
- // Close Parent BlockIO2 if has.\r
- // \r
+ // Close Parent DiskIo2 if has.\r
+ //\r
gBS->CloseProtocol (\r
ControllerHandle,\r
- &gEfiBlockIo2ProtocolGuid,\r
+ &gEfiDiskIo2ProtocolGuid,\r
This->DriverBindingHandle,\r
ControllerHandle\r
);\r
BOOLEAN AllChildrenStopped;\r
PARTITION_PRIVATE_DATA *Private;\r
EFI_DISK_IO_PROTOCOL *DiskIo;\r
+ EFI_GUID *TypeGuid;\r
\r
BlockIo = NULL;\r
BlockIo2 = NULL;\r
Private = NULL;\r
\r
if (NumberOfChildren == 0) {\r
+ //\r
+ // In the case of re-entry of the PartitionDriverBindingStop, the\r
+ // NumberOfChildren may not reflect the actual number of children on the\r
+ // bus driver. Hence, additional check is needed here.\r
+ //\r
+ if (HasChildren (ControllerHandle)) {\r
+ DEBUG((EFI_D_ERROR, "PartitionDriverBindingStop: Still has child.\n"));\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
//\r
// Close the bus driver\r
//\r
);\r
//\r
// Close Parent BlockIO2 if has.\r
- // \r
+ //\r
gBS->CloseProtocol (\r
ControllerHandle,\r
- &gEfiBlockIo2ProtocolGuid,\r
+ &gEfiDiskIo2ProtocolGuid,\r
This->DriverBindingHandle,\r
ControllerHandle\r
);\r
This->DriverBindingHandle,\r
ControllerHandle,\r
EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
- ); \r
+ );\r
\r
\r
Private = PARTITION_DEVICE_FROM_BLOCK_IO_THIS (BlockIo);\r
+ if (Private->InStop) {\r
+ //\r
+ // If the child handle is going to be stopped again during the re-entry\r
+ // of DriverBindingStop, just do nothing.\r
+ //\r
+ break;\r
+ }\r
+ Private->InStop = TRUE;\r
+\r
+ BlockIo->FlushBlocks (BlockIo);\r
+\r
+ if (BlockIo2 != NULL) {\r
+ Status = BlockIo2->FlushBlocksEx (BlockIo2, NULL);\r
+ DEBUG((EFI_D_ERROR, "PartitionDriverBindingStop: FlushBlocksEx returned with %r\n", Status));\r
+ } else {\r
+ Status = EFI_SUCCESS;\r
+ }\r
+\r
+ gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiDiskIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ChildHandleBuffer[Index]\r
+ );\r
+\r
+ if (IsZeroGuid (&Private->TypeGuid)) {\r
+ TypeGuid = NULL;\r
+ } else {\r
+ TypeGuid = &Private->TypeGuid;\r
+ }\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
- &gEfiBlockIo2ProtocolGuid,\r
- &Private->BlockIo2,\r
- Private->EspGuid,\r
- NULL,\r
- NULL\r
- );\r
+ //\r
+ // Some device drivers might re-install the BlockIO(2) protocols for a\r
+ // media change condition. Therefore, if the FlushBlocksEx returned with\r
+ // EFI_MEDIA_CHANGED, just let the BindingStop fail to avoid potential\r
+ // reference of already stopped child handle.\r
+ //\r
+ if (Status != EFI_MEDIA_CHANGED) {\r
+ Status = gBS->UninstallMultipleProtocolInterfaces (\r
+ ChildHandleBuffer[Index],\r
+ &gEfiDevicePathProtocolGuid,\r
+ Private->DevicePath,\r
+ &gEfiBlockIoProtocolGuid,\r
+ &Private->BlockIo,\r
+ &gEfiBlockIo2ProtocolGuid,\r
+ &Private->BlockIo2,\r
+ &gEfiPartitionInfoProtocolGuid,\r
+ &Private->PartitionInfo,\r
+ TypeGuid,\r
+ NULL,\r
+ NULL\r
+ );\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
+ &gEfiPartitionInfoProtocolGuid,\r
+ &Private->PartitionInfo,\r
+ TypeGuid,\r
NULL,\r
NULL\r
);\r
}\r
\r
if (EFI_ERROR (Status)) {\r
+ Private->InStop = FALSE;\r
gBS->OpenProtocol (\r
ControllerHandle,\r
&gEfiDiskIoProtocolGuid,\r
\r
if (EFI_ERROR (Status)) {\r
AllChildrenStopped = FALSE;\r
+ if (Status == EFI_MEDIA_CHANGED) {\r
+ break;\r
+ }\r
}\r
}\r
\r
)\r
{\r
EFI_STATUS Status;\r
+ UINT8 Buffer[1];\r
\r
//\r
- // Read 1 byte from offset 0 but passing NULL as buffer pointer\r
+ // Read 1 byte from offset 0 to check if the MediaId is still valid.\r
+ // The reading operation is synchronious thus it is not worth it to\r
+ // allocate a buffer from the pool. The destination buffer for the\r
+ // data is in the stack.\r
//\r
- Status = DiskIo->ReadDisk (DiskIo, MediaId, 0, 1, NULL);\r
+ Status = DiskIo->ReadDisk (DiskIo, MediaId, 0, 1, (VOID*)Buffer);\r
if ((Status == EFI_NO_MEDIA) || (Status == EFI_MEDIA_CHANGED)) {\r
return Status;\r
}\r
return Private->ParentBlockIo->FlushBlocks (Private->ParentBlockIo);\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 DiskIo2 Pointer to the DiskIo2 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
+ProbeMediaStatusEx (\r
+ IN EFI_DISK_IO2_PROTOCOL *DiskIo2,\r
+ IN UINT32 MediaId,\r
+ IN EFI_STATUS DefaultStatus\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINT8 Buffer[1];\r
+\r
+ //\r
+ // Read 1 byte from offset 0 to check if the MediaId is still valid.\r
+ // The reading operation is synchronious thus it is not worth it to\r
+ // allocate a buffer from the pool. The destination buffer for the\r
+ // data is in the stack.\r
+ //\r
+ Status = DiskIo2->ReadDiskEx (DiskIo2, MediaId, 0, NULL, 1, (VOID*)Buffer);\r
+ if ((Status == EFI_NO_MEDIA) || (Status == EFI_MEDIA_CHANGED)) {\r
+ return Status;\r
+ }\r
+ return DefaultStatus;\r
+}\r
+\r
/**\r
Reset the Block Device throught Block I/O2 protocol.\r
\r
);\r
}\r
\r
+/**\r
+ The general callback for the DiskIo2 interfaces.\r
+ @param Event Event whose notification function is being invoked.\r
+ @param Context The pointer to the notification function's context,\r
+ which points to the PARTITION_ACCESS_TASK instance.\r
+**/\r
+VOID\r
+EFIAPI\r
+PartitionOnAccessComplete (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ )\r
+{\r
+ PARTITION_ACCESS_TASK *Task;\r
+\r
+ Task = (PARTITION_ACCESS_TASK *) Context;\r
+\r
+ gBS->CloseEvent (Event);\r
+\r
+ Task->BlockIo2Token->TransactionStatus = Task->DiskIo2Token.TransactionStatus;\r
+ gBS->SignalEvent (Task->BlockIo2Token->Event);\r
+\r
+ FreePool (Task);\r
+}\r
+\r
+/**\r
+ Create a new PARTITION_ACCESS_TASK instance.\r
+\r
+ @param Token Pointer to the EFI_BLOCK_IO2_TOKEN.\r
+\r
+ @return Pointer to the created PARTITION_ACCESS_TASK instance or NULL upon failure.\r
+**/\r
+PARTITION_ACCESS_TASK *\r
+PartitionCreateAccessTask (\r
+ IN EFI_BLOCK_IO2_TOKEN *Token\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ PARTITION_ACCESS_TASK *Task;\r
+\r
+ Task = AllocatePool (sizeof (*Task));\r
+ if (Task == NULL) {\r
+ return NULL;\r
+ }\r
+\r
+ Status = gBS->CreateEvent (\r
+ EVT_NOTIFY_SIGNAL,\r
+ TPL_NOTIFY,\r
+ PartitionOnAccessComplete,\r
+ Task,\r
+ &Task->DiskIo2Token.Event\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ FreePool (Task);\r
+ return NULL;\r
+ }\r
+\r
+ Task->BlockIo2Token = Token;\r
+\r
+ return Task;\r
+}\r
+\r
/**\r
Read BufferSize bytes from Lba into Buffer.\r
- \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
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
+ @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
+ @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
@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
+ @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
OUT VOID *Buffer\r
)\r
{\r
+ EFI_STATUS Status;\r
PARTITION_PRIVATE_DATA *Private;\r
UINT64 Offset;\r
- UINT32 UnderRun;\r
-\r
- if (Token == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
+ PARTITION_ACCESS_TASK *Task;\r
\r
Private = PARTITION_DEVICE_FROM_BLOCK_IO2_THIS (This);\r
+\r
if (BufferSize % Private->BlockSize != 0) {\r
- return EFI_BAD_BUFFER_SIZE;\r
+ return ProbeMediaStatusEx (Private->DiskIo2, 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 ProbeMediaStatusEx (Private->DiskIo2, MediaId, 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
+ if ((Token != NULL) && (Token->Event != NULL)) {\r
+ Task = PartitionCreateAccessTask (Token);\r
+ if (Task == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\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
+ Status = Private->DiskIo2->ReadDiskEx (Private->DiskIo2, MediaId, Offset, &Task->DiskIo2Token, BufferSize, Buffer);\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->CloseEvent (Task->DiskIo2Token.Event);\r
+ FreePool (Task);\r
+ }\r
+ } else {\r
+ Status = Private->DiskIo2->ReadDiskEx (Private->DiskIo2, MediaId, Offset, NULL, BufferSize, Buffer);\r
}\r
\r
- return Private->ParentBlockIo2->ReadBlocksEx (Private->ParentBlockIo2, MediaId, Lba, Token, BufferSize, Buffer);\r
+ return Status;\r
}\r
\r
/**\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
+ @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
IN VOID *Buffer\r
)\r
{\r
+ EFI_STATUS Status;\r
PARTITION_PRIVATE_DATA *Private;\r
UINT64 Offset;\r
- UINT32 UnderRun;\r
-\r
- if (Token == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
+ PARTITION_ACCESS_TASK *Task;\r
\r
Private = PARTITION_DEVICE_FROM_BLOCK_IO2_THIS (This);\r
+\r
if (BufferSize % Private->BlockSize != 0) {\r
- return EFI_BAD_BUFFER_SIZE;\r
+ return ProbeMediaStatusEx (Private->DiskIo2, 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 ProbeMediaStatusEx (Private->DiskIo2, MediaId, 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
+ if ((Token != NULL) && (Token->Event != NULL)) {\r
+ Task = PartitionCreateAccessTask (Token);\r
+ if (Task == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\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
+ Status = Private->DiskIo2->WriteDiskEx (Private->DiskIo2, MediaId, Offset, &Task->DiskIo2Token, BufferSize, Buffer);\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->CloseEvent (Task->DiskIo2Token.Event);\r
+ FreePool (Task);\r
+ }\r
+ } else {\r
+ Status = Private->DiskIo2->WriteDiskEx (Private->DiskIo2, MediaId, Offset, NULL, BufferSize, Buffer);\r
}\r
-\r
- return Private->ParentBlockIo2->WriteBlocksEx (Private->ParentBlockIo2, MediaId, Lba, Token, BufferSize, Buffer);\r
+ return Status;\r
}\r
\r
/**\r
Flush the Block Device.\r
- \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
+ 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
IN OUT EFI_BLOCK_IO2_TOKEN *Token\r
)\r
{\r
+ EFI_STATUS Status;\r
PARTITION_PRIVATE_DATA *Private;\r
+ PARTITION_ACCESS_TASK *Task;\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
+ if ((Token != NULL) && (Token->Event != NULL)) {\r
+ Task = PartitionCreateAccessTask (Token);\r
+ if (Task == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
\r
- return Private->ParentBlockIo2->FlushBlocksEx (Private->ParentBlockIo2, Token);\r
+ Status = Private->DiskIo2->FlushDiskEx (Private->DiskIo2, &Task->DiskIo2Token);\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->CloseEvent (Task->DiskIo2Token.Event);\r
+ FreePool (Task);\r
+ }\r
+ } else {\r
+ Status = Private->DiskIo2->FlushDiskEx (Private->DiskIo2, NULL);\r
+ }\r
+ return Status;\r
}\r
\r
\r
@param[in] This Protocol instance pointer.\r
@param[in] ParentHandle Parent Handle for new child.\r
@param[in] ParentDiskIo Parent DiskIo interface.\r
+ @param[in] ParentDiskIo2 Parent DiskIo2 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] PartitionInfo Child Partition Information interface.\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
+ @param[in] TypeGuid Partition GUID Type.\r
\r
@retval EFI_SUCCESS A child handle was added.\r
@retval other A child handle was not added.\r
IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
IN EFI_HANDLE ParentHandle,\r
IN EFI_DISK_IO_PROTOCOL *ParentDiskIo,\r
+ IN EFI_DISK_IO2_PROTOCOL *ParentDiskIo2,\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_PARTITION_INFO_PROTOCOL *PartitionInfo,\r
IN EFI_LBA Start,\r
IN EFI_LBA End,\r
IN UINT32 BlockSize,\r
- IN BOOLEAN InstallEspGuid\r
+ IN EFI_GUID *TypeGuid\r
)\r
{\r
EFI_STATUS Status;\r
Private->ParentBlockIo = ParentBlockIo;\r
Private->ParentBlockIo2 = ParentBlockIo2;\r
Private->DiskIo = ParentDiskIo;\r
+ Private->DiskIo2 = ParentDiskIo2;\r
\r
//\r
// Set the BlockIO into Private Data.\r
//\r
Private->BlockIo.Revision = ParentBlockIo->Revision;\r
- \r
+\r
Private->BlockIo.Media = &Private->Media;\r
CopyMem (Private->BlockIo.Media, ParentBlockIo->Media, sizeof (EFI_BLOCK_IO_MEDIA));\r
\r
//\r
// Set the BlockIO2 into Private Data.\r
//\r
- if (Private->ParentBlockIo2 != NULL) {\r
+ if (Private->DiskIo2 != NULL) {\r
+ ASSERT (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
+ Private->BlockIo2.FlushBlocksEx = PartitionFlushBlocksEx;\r
}\r
\r
Private->Media.IoAlign = 0;\r
\r
Private->Media.BlockSize = (UINT32) BlockSize;\r
\r
- //\r
- // For BlockIO2, it should keep the same alignment with the parent BlockIO2's.\r
- //\r
+ Private->Media2.IoAlign = 0;\r
Private->Media2.LogicalPartition = TRUE;\r
Private->Media2.LastBlock = Private->Media.LastBlock;\r
Private->Media2.BlockSize = (UINT32) BlockSize;\r
return EFI_OUT_OF_RESOURCES;\r
}\r
\r
- if (InstallEspGuid) {\r
- Private->EspGuid = &gEfiPartTypeSystemPartGuid;\r
+ //\r
+ // Set the PartitionInfo into Private Data.\r
+ //\r
+ CopyMem (&Private->PartitionInfo, PartitionInfo, sizeof (EFI_PARTITION_INFO_PROTOCOL));\r
+\r
+ if (TypeGuid != NULL) {\r
+ CopyGuid(&(Private->TypeGuid), TypeGuid);\r
} else {\r
- //\r
- // If NULL InstallMultipleProtocolInterfaces will ignore it.\r
- //\r
- Private->EspGuid = NULL;\r
+ ZeroMem ((VOID *)&(Private->TypeGuid), sizeof (EFI_GUID));\r
}\r
\r
//\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
+ // Create the new handle.\r
//\r
Private->Handle = NULL;\r
- if ((Private->ParentBlockIo2 != NULL) &&\r
- (Private->ParentBlockIo2->Media->BlockSize == BlockSize)\r
- ) {\r
+ if (Private->DiskIo2 != NULL) {\r
Status = gBS->InstallMultipleProtocolInterfaces (\r
&Private->Handle,\r
&gEfiDevicePathProtocolGuid,\r
&Private->BlockIo,\r
&gEfiBlockIo2ProtocolGuid,\r
&Private->BlockIo2,\r
- Private->EspGuid,\r
+ &gEfiPartitionInfoProtocolGuid,\r
+ &Private->PartitionInfo,\r
+ TypeGuid,\r
NULL,\r
NULL\r
);\r
- } else { \r
+ } else {\r
Status = gBS->InstallMultipleProtocolInterfaces (\r
&Private->Handle,\r
&gEfiDevicePathProtocolGuid,\r
Private->DevicePath,\r
&gEfiBlockIoProtocolGuid,\r
&Private->BlockIo,\r
- Private->EspGuid,\r
+ &gEfiPartitionInfoProtocolGuid,\r
+ &Private->PartitionInfo,\r
+ TypeGuid,\r
NULL,\r
NULL\r
);\r
/**\r
The user Entry Point for module Partition. The user code starts with this function.\r
\r
- @param[in] ImageHandle The firmware allocated handle for the EFI image. \r
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.\r
@param[in] SystemTable A pointer to the EFI System Table.\r
- \r
+\r
@retval EFI_SUCCESS The entry point is executed successfully.\r
@retval other Some error occurs when executing this entry point.\r
\r
return Status;\r
}\r
\r
+\r
+/**\r
+ Test to see if there is any child on ControllerHandle.\r
+\r
+ @param[in] ControllerHandle Handle of device to test.\r
+\r
+ @retval TRUE There are children on the ControllerHandle.\r
+ @retval FALSE No child is on the ControllerHandle.\r
+\r
+**/\r
+BOOLEAN\r
+HasChildren (\r
+ IN EFI_HANDLE ControllerHandle\r
+ )\r
+{\r
+ EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;\r
+ UINTN EntryCount;\r
+ EFI_STATUS Status;\r
+ UINTN Index;\r
+\r
+ Status = gBS->OpenProtocolInformation (\r
+ ControllerHandle,\r
+ &gEfiDiskIoProtocolGuid,\r
+ &OpenInfoBuffer,\r
+ &EntryCount\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ for (Index = 0; Index < EntryCount; Index++) {\r
+ if ((OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {\r
+ break;\r
+ }\r
+ }\r
+ FreePool (OpenInfoBuffer);\r
+\r
+ return (BOOLEAN) (Index < EntryCount);\r
+}\r
+\r
projects / mirror_edk2.git / blobdiff