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Add full version FaultTolerantWrite Dxe driver.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7787 6f19259b-4bc3-4df7-8a09-765794883524
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lgao4
2009-03-04 01:05:31 +00:00
parent d0c94e5954
commit 85e923a528
9 changed files with 3841 additions and 1 deletions
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207
MdeModulePkg/Include/Protocol/FaultTolerantWrite.h Normal file
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/** @file
Fault Tolerant Write protocol provides boot-time service to do fault tolerant
write capability for block devices. The protocol provides for non-volatile
intermediate storage of the data and private information a caller would need to
recover from a critical fault, such as power failure.
Copyright (c) 2009, Intel Corporation
All rights reserved. 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
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _FW_FAULT_TOLERANT_WRITE_PROTOCOL_H_
#define _FW_FAULT_TOLERANT_WRITE_PROTOCOL_H_
#define EFI_FAULT_TOLERANT_WRITE_PROTOCOL_GUID \
{ \
0x3ebd9e82, 0x2c78, 0x4de6, {0x97, 0x86, 0x8d, 0x4b, 0xfc, 0xb7, 0xc8, 0x81 } \
}
//
// Forward reference for pure ANSI compatability
//
typedef struct _EFI_FAULT_TOLERANT_WRITE_PROTOCOL EFI_FAULT_TOLERANT_WRITE_PROTOCOL;
/**
Query the largest block that may be updated in a fault tolerant manner.
@param This Indicates a pointer to the calling context.
@param BlockSize A pointer to a caller allocated UINTN that is
updated to indicate the size of the largest block
that can be updated.
@retval EFI_SUCCESS The function completed successfully
@retval EFI_ABORTED The function could not complete successfully.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_FAULT_TOLERANT_WRITE_GET_MAX_BLOCK_SIZE) (
IN EFI_FAULT_TOLERANT_WRITE_PROTOCOL * This,
OUT UINTN *BlockSize
);
/**
Allocates space for the protocol to maintain information about writes.
Since writes must be completed in a fault tolerant manner and multiple
updates will require more resources to be successful, this function
enables the protocol to ensure that enough space exists to track
information about the upcoming writes.
@param This Indicates a pointer to the calling context.
@param CallerId The GUID identifying the write.
@param PrivateDataSize The size of the caller's private data that must be
recorded for each write.
@param NumberOfWrites The number of fault tolerant block writes that will
need to occur.
@retval EFI_SUCCESS The function completed successfully
@retval EFI_ABORTED The function could not complete successfully.
@retval EFI_ACCESS_DENIED All allocated writes have not been completed. All
writes must be completed or aborted before another
fault tolerant write can occur.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_FAULT_TOLERANT_WRITE_ALLOCATE) (
IN EFI_FAULT_TOLERANT_WRITE_PROTOCOL * This,
IN EFI_GUID * CallerId,
IN UINTN PrivateDataSize,
IN UINTN NumberOfWrites
);
/**
Starts a target block update. This records information about the write
in fault tolerant storage and will complete the write in a recoverable
manner, ensuring at all times that either the original contents or
the modified contents are available.
@param This Calling context
@param Lba The logical block address of the target block.
@param Offset The offset within the target block to place the
data.
@param Length The number of bytes to write to the target block.
@param PrivateData A pointer to private data that the caller requires
to complete any pending writes in the event of a
fault.
@param FvBlockHandle The handle of FVB protocol that provides services
for reading, writing, and erasing the target block.
@param Buffer The data to write.
@retval EFI_SUCCESS The function completed successfully
@retval EFI_ABORTED The function could not complete successfully.
@retval EFI_BAD_BUFFER_SIZE The write would span a block boundary, which is not
a valid action.
@retval EFI_ACCESS_DENIED No writes have been allocated.
@retval EFI_NOT_READY The last write has not been completed. Restart ()
must be called to complete it.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_FAULT_TOLERANT_WRITE_WRITE) (
IN EFI_FAULT_TOLERANT_WRITE_PROTOCOL * This,
IN EFI_LBA Lba,
IN UINTN Offset,
IN UINTN Length,
IN VOID *PrivateData,
IN EFI_HANDLE FvbHandle,
IN VOID *Buffer
);
/**
Restarts a previously interrupted write. The caller must provide the
block protocol needed to complete the interrupted write.
@param This Calling context.
@param FvBlockProtocol The handle of FVB protocol that provides services
for reading, writing, and erasing the target block.
@retval EFI_SUCCESS The function completed successfully
@retval EFI_ABORTED The function could not complete successfully.
@retval EFI_ACCESS_DENIED No pending writes exist.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_FAULT_TOLERANT_WRITE_RESTART) (
IN EFI_FAULT_TOLERANT_WRITE_PROTOCOL * This,
IN EFI_HANDLE FvbHandle
);
/**
Aborts all previous allocated writes.
@param This Calling context
@retval EFI_SUCCESS The function completed successfully
@retval EFI_ABORTED The function could not complete successfully.
@retval EFI_NOT_FOUND No allocated writes exist.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_FAULT_TOLERANT_WRITE_ABORT) (
IN EFI_FAULT_TOLERANT_WRITE_PROTOCOL * This
);
/**
Starts a target block update. This records information about the write
in fault tolerant storage and will complete the write in a recoverable
manner, ensuring at all times that either the original contents or
the modified contents are available.
@param This Indicates a pointer to the calling context.
@param CallerId The GUID identifying the last write.
@param Lba The logical block address of the last write.
@param Offset The offset within the block of the last write.
@param Length The length of the last write.
@param PrivateDataSize On input, the size of the PrivateData buffer. On
output, the size of the private data stored for
this write.
@param PrivateData A pointer to a buffer. The function will copy
PrivateDataSize bytes from the private data stored
for this write.
@param Complete A Boolean value with TRUE indicating that the write
was completed.
@retval EFI_SUCCESS The function completed successfully
@retval EFI_ABORTED The function could not complete successfully.
@retval EFI_NOT_FOUND No allocated writes exist.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_FAULT_TOLERANT_WRITE_GET_LAST_WRITE) (
IN EFI_FAULT_TOLERANT_WRITE_PROTOCOL * This,
OUT EFI_GUID * CallerId,
OUT EFI_LBA *Lba,
OUT UINTN *Offset,
OUT UINTN *Length,
IN OUT UINTN *PrivateDataSize,
OUT VOID *PrivateData,
OUT BOOLEAN *Complete
);
//
// Protocol declaration
//
struct _EFI_FAULT_TOLERANT_WRITE_PROTOCOL {
EFI_FAULT_TOLERANT_WRITE_GET_MAX_BLOCK_SIZE GetMaxBlockSize;
EFI_FAULT_TOLERANT_WRITE_ALLOCATE Allocate;
EFI_FAULT_TOLERANT_WRITE_WRITE Write;
EFI_FAULT_TOLERANT_WRITE_RESTART Restart;
EFI_FAULT_TOLERANT_WRITE_ABORT Abort;
EFI_FAULT_TOLERANT_WRITE_GET_LAST_WRITE GetLastWrite;
};
extern EFI_GUID gEfiFaultTolerantWriteProtocolGuid;
#endif

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MdeModulePkg/Include/Protocol/SwapAddressRange.h Normal file
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/** @file
The EFI_SWAP_ADDRESS_RANGE_PROTOCOL is used to abstract the swap operation of boot block
and backup block of FV. This swap is especially needed when updating the boot block of FV. If any
power failure happens during updating boot block, the swapped backup block (now is the boot block)
can boot the machine with old boot block backuped in it. The swap operation is platform dependent, so
other protocols such as FTW (Fault Tolerant Write) should use this protocol instead of handling hardward directly.
Copyright (c) 2009, Intel Corporation
All rights reserved. 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
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _EFI_SWAP_ADDRESS_RANGE_PROTOCOL_H_
#define _EFI_SWAP_ADDRESS_RANGE_PROTOCOL_H_
#define EFI_SWAP_ADDRESS_RANGE_PROTOCOL_GUID \
{ \
0x1259f60d, 0xb754, 0x468e, {0xa7, 0x89, 0x4d, 0xb8, 0x5d, 0x55, 0xe8, 0x7e } \
}
//
// Forward reference for pure ANSI compatability
//
typedef struct _EFI_SWAP_ADDRESS_RANGE_PROTOCOL EFI_SWAP_ADDRESS_RANGE_PROTOCOL;
#define EFI_UNSUPPORT_LOCK 0
#define EFI_SOFTWARE_LOCK 1
#define EFI_HARDWARE_LOCK 2
typedef UINT8 EFI_SWAP_LOCK_CAPABILITY;
//
// Protocl APIs
//
/**
This service gets the address range location of boot block and backup block.
The EFI_GET_RANGE_LOCATION service allows caller to get the range location of
boot block and backup block.
@param This Indicates the calling context.
@param BootBlockBase Base address of current boot block.
@param BootBlockSize Size (in bytes) of current boot block.
@param BackupBlockBase Base address of current backup block.
@param BackupBlockSize Size (in bytes) of current backup block.
@retval EFI_SUCCESS The call was successful.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_RANGE_LOCATION) (
IN EFI_SWAP_ADDRESS_RANGE_PROTOCOL * This,
OUT EFI_PHYSICAL_ADDRESS * BootBlockBase,
OUT UINTN *BootBlockSize,
OUT EFI_PHYSICAL_ADDRESS * BackupBlockBase,
OUT UINTN *BackupBlockSize
);
/**
This service checks if the boot block and backup block has been swapped.
The EFI_GET_SWAP_STATE service allows caller to get current swap state of boot block and backup block.
@param This Indicates the calling context.
@param SwapState True if the boot block and backup block has been swapped.
False if the boot block and backup block has not been swapped.
@retval EFI_SUCCESS The call was successful.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_SWAP_STATE) (
IN EFI_SWAP_ADDRESS_RANGE_PROTOCOL * This,
OUT BOOLEAN *SwapState
);
/**
This service swaps the boot block and backup block, or swaps them back.
The EFI_SET_SWAP_STATE service allows caller to set the swap state of boot block and backup block.
It also acquires and releases software swap lock during operation. Note the setting of new swap state
is not affected by the old swap state.
@param This Indicates the calling context.
@param NewSwapState True to swap real boot block and backup block , False to swap them back..
@retval EFI_SUCCESS The call was successful.
@retval EFI_ABORTED Set swap state error
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SET_SWAP_STATE) (
IN EFI_SWAP_ADDRESS_RANGE_PROTOCOL * This,
IN BOOLEAN NewSwapState
);
/**
This service checks if a RTC (Real Time Clock) power failure happened.
The EFI_GET_RTC_POWER_STATUS service allows caller to get Real Time Clock power failure status.
If parameter RtcPowerFailed is true after function returns, the trickle current (from the main battery or trickle supply)
has been removed or failed, this means the swap status was lost in some platform (such as IA32).
So it is recommended to check RTC power status before calling GetSwapState().
@param This Indicates the calling context.
@param RtcPowerFailed True if a RTC (Real Time Clock) power failure has happened.
@retval EFI_SUCCESS The call was successful.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_RTC_POWER_STATUS) (
IN EFI_SWAP_ADDRESS_RANGE_PROTOCOL * This,
OUT BOOLEAN *RtcPowerFailed
);
/**
This service returns supported lock methods for swap operation in current platform. Could be software lock, hardware lock, or unsupport lock.
The EFI_GET_SWAP_LOCK_CAPABILITY service allows caller to get supported lock method for swap operation in current platform.
Note that software and hardware lock mothod can be used simultaneously.
@param This Indicates the calling context.
@param LockCapability Current lock method for swap operation.
@retval EFI_SUCCESS The call was successful.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_SWAP_LOCK_CAPABILITY) (
IN EFI_SWAP_ADDRESS_RANGE_PROTOCOL * This,
OUT EFI_SWAP_LOCK_CAPABILITY * LockCapability
);
/**
This service is used to acquire or release appointed kind of lock for Swap Address Range operation.
The EFI_GET_SWAP_LOCK_CAPABILITY service allows caller to get supported lock method for swap operation in current platform.
Note that software and hardware lock mothod can be used simultaneously.
@param This Indicates the calling context.
@param LockCapability Indicates which lock to acquire or release.
@param NewLockState True to acquire lock, False to release lock.
@retval EFI_SUCCESS The call was successful.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SET_SWAP_LOCK) (
IN EFI_SWAP_ADDRESS_RANGE_PROTOCOL * This,
IN EFI_SWAP_LOCK_CAPABILITY LockCapability,
IN BOOLEAN NewLockState
);
struct _EFI_SWAP_ADDRESS_RANGE_PROTOCOL {
EFI_GET_RANGE_LOCATION GetRangeLocation; // has output parameters for base and length
EFI_GET_SWAP_STATE GetSwapState; // are ranges swapped or not
EFI_SET_SWAP_STATE SetSwapState; // swap or unswap ranges
EFI_GET_RTC_POWER_STATUS GetRtcPowerStatus; // checks RTC battery, or whatever...
EFI_GET_SWAP_LOCK_CAPABILITY GetSwapLockCapability; // Get TOP_SWAP lock capability,
EFI_SET_SWAP_LOCK SetSwapLock; // Set TOP_SWAP lock state
};
extern EFI_GUID gEfiSwapAddressRangeProtocolGuid;
#endif