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Add runtime checking for EdkFvbServiceLib. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2121 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2 2006-12-20 03:58:26 +00:00
parent 1a8bde03fc
commit aadbf21b5f
3 changed files with 616 additions and 476 deletions
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17
EdkModulePkg/Library/EdkFvbServiceLib/Fvb.h
View File

@ -1,21 +1,13 @@
/*++
/**
The internal header file for EdkFvbServiceLib.
Copyright (c) 2006, Intel Corporation
Copyright (c) 2006 Intel Corporation. <BR>
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.
Module Name:
Fvb.h
Abstract:
--*/
**/
#ifndef __FVB_H__
#define __FVB_H__
@ -26,6 +18,7 @@ typedef struct {
EFI_HANDLE Handle;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;
EFI_FVB_EXTENSION_PROTOCOL *FvbExtension;
BOOLEAN IsRuntimeAccess;
} FVB_ENTRY;
#endif

527
EdkModulePkg/Library/EdkFvbServiceLib/Ia32/Fvb.c
View File

@ -1,19 +1,4 @@
/*++
Copyright (c) 2006, 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.
Module Name:
Fvb.c
Abstract:
/**@file
Firmware Volume Block Protocol Runtime Abstraction
@ -24,10 +9,16 @@ Abstract:
If you are using any of these lib functions.you must first call FvbInitialize ().
Key:
FVB - Firmware Volume Block
Copyright (c) 2006, 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.
**/
#include "Fvb.h"
@ -39,6 +30,105 @@ STATIC EFI_EVENT mFvbRegistration;
STATIC BOOLEAN mEfiFvbInitialized = FALSE;
STATIC UINTN mFvbCount;
/**
Check whether an address is runtime memory or not.
@param Address The Address being checked.
@retval TRUE The address is runtime memory.
@retval FALSE The address is not runtime memory.
**/
BOOLEAN
IsRuntimeMemory (
IN VOID *Address
)
{
EFI_STATUS Status;
UINT8 TmpMemoryMap[1];
UINTN MapKey;
UINTN DescriptorSize;
UINT32 DescriptorVersion;
UINTN MemoryMapSize;
EFI_MEMORY_DESCRIPTOR *MemoryMap;
EFI_MEMORY_DESCRIPTOR *MemoryMapPtr;
BOOLEAN IsRuntime;
UINTN Index;
IsRuntime = FALSE;
//
// Get System MemoryMapSize
//
MemoryMapSize = 1;
Status = gBS->GetMemoryMap (
&MemoryMapSize,
(EFI_MEMORY_DESCRIPTOR *)TmpMemoryMap,
&MapKey,
&DescriptorSize,
&DescriptorVersion
);
ASSERT (Status == EFI_BUFFER_TOO_SMALL);
//
// Enlarge space here, because we will allocate pool now.
//
MemoryMapSize += EFI_PAGE_SIZE;
Status = gBS->AllocatePool (
EfiBootServicesData,
MemoryMapSize,
(VOID**)&MemoryMap
);
ASSERT_EFI_ERROR (Status);
//
// Get System MemoryMap
//
Status = gBS->GetMemoryMap (
&MemoryMapSize,
MemoryMap,
&MapKey,
&DescriptorSize,
&DescriptorVersion
);
ASSERT_EFI_ERROR (Status);
MemoryMapPtr = MemoryMap;
//
// Search the request Address
//
for (Index = 0; Index < (MemoryMapSize / DescriptorSize); Index++) {
if (((EFI_PHYSICAL_ADDRESS)(UINTN)Address >= MemoryMap->PhysicalStart) &&
((EFI_PHYSICAL_ADDRESS)(UINTN)Address < MemoryMap->PhysicalStart
+ LShiftU64 (MemoryMap->NumberOfPages, EFI_PAGE_SHIFT))) {
//
// Found it
//
if (MemoryMap->Attribute & EFI_MEMORY_RUNTIME) {
IsRuntime = TRUE;
}
break;
}
//
// Get next item
//
MemoryMap = (EFI_MEMORY_DESCRIPTOR *)((UINTN)MemoryMap + DescriptorSize);
}
//
// Done
//
gBS->FreePool (MemoryMapPtr);
return IsRuntime;
}
/**
Update mFvbEntry. Add new entry, or update existing entry if Fvb protocol is
reinstalled.
@param Event The Event that is being processed
@param Context Event Context
**/
STATIC
VOID
EFIAPI
@ -46,22 +136,6 @@ FvbNotificationEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
Update mFvbEntry. Add new entry, or update existing entry if Fvb protocol is
reinstalled.
Arguments:
Event - The Event that is being processed
Context - Event Context
Returns:
None
--*/
{
EFI_STATUS Status;
UINTN BufferSize;
@ -115,43 +189,59 @@ Returns:
//
// Get the interface pointer and if it's ours, skip it
//
Status = gBS->HandleProtocol (Handle, &gEfiFirmwareVolumeBlockProtocolGuid, (VOID **) &mFvbEntry[UpdateIndex].Fvb);
Status = gBS->HandleProtocol (
Handle,
&gEfiFirmwareVolumeBlockProtocolGuid,
(VOID **) &mFvbEntry[UpdateIndex].Fvb
);
ASSERT_EFI_ERROR (Status);
Status = gBS->HandleProtocol (Handle, &gEfiFvbExtensionProtocolGuid, (VOID **) &mFvbEntry[UpdateIndex].FvbExtension);
Status = gBS->HandleProtocol (
Handle,
&gEfiFvbExtensionProtocolGuid,
(VOID **) &mFvbEntry[UpdateIndex].FvbExtension
);
if (Status != EFI_SUCCESS) {
mFvbEntry[UpdateIndex].FvbExtension = NULL;
}
//
// Check the FVB can be accessed in RUNTIME, The FVBs in FVB handle list comes
// from two way:
// 1) Dxe Core. (FVB information is transferred from FV HOB).
// 2) FVB driver.
// The FVB produced Dxe core is used for discoverying DXE driver and dispatch. These
// FVBs can only be accessed in boot time.
// FVB driver will discovery all FV in FLASH and these FVBs can be accessed in runtime.
// The FVB itself produced by FVB driver is allocated in runtime memory. So we can
// determine the what FVB can be accessed in RUNTIME by judging whether FVB itself is allocated
// in RUNTIME memory.
//
mFvbEntry[UpdateIndex].IsRuntimeAccess = IsRuntimeMemory (mFvbEntry[UpdateIndex].Fvb);
}
}
/**
Convert all pointers in mFvbEntry after ExitBootServices.
@param Event The Event that is being processed
@param Context Event Context
**/
VOID
EFIAPI
FvbVirtualAddressChangeNotifyEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
Convert all pointers in mFvbEntry after ExitBootServices.
Arguments:
Event - The Event that is being processed
Context - Event Context
Returns:
None
--*/
{
UINTN Index;
if (mFvbEntry != NULL) {
for (Index = 0; Index < MAX_FVB_COUNT; Index++) {
if (!mFvbEntry[Index].IsRuntimeAccess) {
continue;
}
if (NULL != mFvbEntry[Index].Fvb) {
EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->GetBlockSize);
EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->GetPhysicalAddress);
@ -173,24 +263,21 @@ Returns:
}
}
/**
Library constructor function entry.
@param ImageHandle The handle of image who call this libary.
@param SystemTable The point of System Table.
@retval EFI_SUCESS Sucess construct this library.
@retval Others Fail to contruct this libary.
**/
EFI_STATUS
EFIAPI
FvbLibInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Initialize globals and register Fvb Protocol notification function.
Arguments:
None
Returns:
EFI_SUCCESS
--*/
{
UINTN Status;
mFvbCount = 0;
@ -238,15 +325,34 @@ Returns:
return EFI_SUCCESS;
}
//
// =============================================================================
// The following functions wrap Fvb protocol in the Runtime Lib functions.
// The Instance translates into Fvb instance. The Fvb order defined by HOBs and
// thus the sequence of FVB protocol addition define Instance.
//
// EfiFvbInitialize () must be called before any of the following functions
// must be called.
// =============================================================================
//
/**
Reads specified number of bytes into a buffer from the specified block
@param Instance The FV instance to be read from.
@param Lba The logical block address to be read from
@param Offset Offset into the block at which to begin reading
@param NumBytes Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes read
@param Buffer Pointer to a caller allocated buffer that will be
used to hold the data read
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to Read block
@retval Others Fail to read block
**/
EFI_STATUS
EfiFvbReadBlock (
IN UINTN Instance,
@ -255,36 +361,34 @@ EfiFvbReadBlock (
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
/*++
Routine Description:
Reads specified number of bytes into a buffer from the specified block
Arguments:
Instance - The FV instance to be read from
Lba - The logical block address to be read from
Offset - Offset into the block at which to begin reading
NumBytes - Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes read
Buffer - Pointer to a caller allocated buffer that will be
used to hold the data read
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->Read (mFvbEntry[Instance].Fvb, Lba, Offset, NumBytes, Buffer);
}
/**
Writes specified number of bytes from the input buffer to the block
@param Instance The FV instance to be written to
@param Lba The starting logical block index to write to
@param Offset Offset into the block at which to begin writing
@param NumBytes Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes actually written
@param Buffer Pointer to a caller allocated buffer that contains
the source for the write
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to write block
@retval Others Fail to write block
**/
EFI_STATUS
EfiFvbWriteBlock (
IN UINTN Instance,
@ -293,160 +397,152 @@ EfiFvbWriteBlock (
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
/*++
Routine Description:
Writes specified number of bytes from the input buffer to the block
Arguments:
Instance - The FV instance to be written to
Lba - The starting logical block index to write to
Offset - Offset into the block at which to begin writing
NumBytes - Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes actually written
Buffer - Pointer to a caller allocated buffer that contains
the source for the write
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->Write (mFvbEntry[Instance].Fvb, Lba, Offset, NumBytes, Buffer);
}
/**
Erases and initializes a firmware volume block
@param Instance The FV instance to be erased
@param Lba The logical block index to be erased
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to erase block
@retval Others Fail to erase block
**/
EFI_STATUS
EfiFvbEraseBlock (
IN UINTN Instance,
IN EFI_LBA Lba
)
/*++
Routine Description:
Erases and initializes a firmware volume block
Arguments:
Instance - The FV instance to be erased
Lba - The logical block index to be erased
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->EraseBlocks (mFvbEntry[Instance].Fvb, Lba, -1);
}
/**
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
@param Instance The FV instance whose attributes is going to be returned
@param Attributes Output buffer which contains attributes
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to get Fv attribute
@retval Others Fail to get Fv attribute
**/
EFI_STATUS
EfiFvbGetVolumeAttributes (
IN UINTN Instance,
OUT EFI_FVB_ATTRIBUTES *Attributes
)
/*++
Routine Description:
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
Arguments:
Instance - The FV instance whose attributes is going to be
returned
Attributes - Output buffer which contains attributes
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->GetVolumeAttributes (mFvbEntry[Instance].Fvb, Attributes);
}
/**
Modifies the current settings of the firmware volume according to the
input parameter, and returns the new setting of the volume
@param Instance The FV instance whose attributes is going to be
modified
@param Attributes On input, it is a pointer to EFI_FVB_ATTRIBUTES
containing the desired firmware volume settings.
On successful return, it contains the new settings
of the firmware volume
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to set Fv attribute
@retval Others Fail to set Fv attribute
**/
EFI_STATUS
EfiFvbSetVolumeAttributes (
IN UINTN Instance,
IN EFI_FVB_ATTRIBUTES Attributes
)
/*++
Routine Description:
Modifies the current settings of the firmware volume according to the
input parameter, and returns the new setting of the volume
Arguments:
Instance - The FV instance whose attributes is going to be
modified
Attributes - On input, it is a pointer to EFI_FVB_ATTRIBUTES
containing the desired firmware volume settings.
On successful return, it contains the new settings
of the firmware volume
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->SetVolumeAttributes (mFvbEntry[Instance].Fvb, &Attributes);
}
/**
Retrieves the physical address of a memory mapped FV
@param Instance The FV instance whose base address is going to be
returned
@param BaseAddress Pointer to a caller allocated EFI_PHYSICAL_ADDRESS
that on successful return, contains the base address
of the firmware volume.
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to get physical address
@retval Others Fail to get physical address
**/
EFI_STATUS
EfiFvbGetPhysicalAddress (
IN UINTN Instance,
OUT EFI_PHYSICAL_ADDRESS *BaseAddress
)
/*++
Routine Description:
Retrieves the physical address of a memory mapped FV
Arguments:
Instance - The FV instance whose base address is going to be
returned
BaseAddress - Pointer to a caller allocated EFI_PHYSICAL_ADDRESS
that on successful return, contains the base address
of the firmware volume.
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->GetPhysicalAddress (mFvbEntry[Instance].Fvb, BaseAddress);
}
/**
Retrieve the size of a logical block
@param Instance The FV instance whose block size is going to be
returned
@param Lba Indicates which block to return the size for.
@param BlockSize A pointer to a caller allocated UINTN in which
the size of the block is returned
@param NumOfBlocks a pointer to a caller allocated UINTN in which the
number of consecutive blocks starting with Lba is
returned. All blocks in this range have a size of
BlockSize
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to get block size
@retval Others Fail to get block size
**/
EFI_STATUS
EfiFvbGetBlockSize (
IN UINTN Instance,
@ -454,37 +550,32 @@ EfiFvbGetBlockSize (
OUT UINTN *BlockSize,
OUT UINTN *NumOfBlocks
)
/*++
Routine Description:
Retrieve the size of a logical block
Arguments:
Instance - The FV instance whose block size is going to be
returned
Lba - Indicates which block to return the size for.
BlockSize - A pointer to a caller allocated UINTN in which
the size of the block is returned
NumOfBlocks - a pointer to a caller allocated UINTN in which the
number of consecutive blocks starting with Lba is
returned. All blocks in this range have a size of
BlockSize
Returns:
EFI_SUCCESS - The firmware volume was read successfully and
contents are in Buffer
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->GetBlockSize (mFvbEntry[Instance].Fvb, Lba, BlockSize, NumOfBlocks);
}
/**
Erases and initializes a specified range of a firmware volume
@param Instance The FV instance to be erased
@param StartLba The starting logical block index to be erased
@param OffsetStartLba Offset into the starting block at which to
begin erasing
@param LastLba The last logical block index to be erased
@param OffsetLastLba Offset into the last block at which to end erasing
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to erase custom block range
@retval Others Fail to erase custom block range
**/
EFI_STATUS
EfiFvbEraseCustomBlockRange (
IN UINTN Instance,
@ -493,33 +584,15 @@ EfiFvbEraseCustomBlockRange (
IN EFI_LBA LastLba,
IN UINTN OffsetLastLba
)
/*++
Routine Description:
Erases and initializes a specified range of a firmware volume
Arguments:
Instance - The FV instance to be erased
StartLba - The starting logical block index to be erased
OffsetStartLba - Offset into the starting block at which to
begin erasing
LastLba - The last logical block index to be erased
OffsetLastLba - Offset into the last block at which to end erasing
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
EFI_UNSUPPORTED - not support
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
if (!(mFvbEntry[Instance].FvbExtension)) {
return EFI_UNSUPPORTED;
}

532
EdkModulePkg/Library/EdkFvbServiceLib/x64/Fvb.c
View File

@ -1,19 +1,4 @@
/*++
Copyright (c) 2006, 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.
Module Name:
Fvb.c
Abstract:
/**@file
Firmware Volume Block Protocol Runtime Abstraction
@ -24,10 +9,16 @@ Abstract:
If you are using any of these lib functions.you must first call FvbInitialize ().
Key:
FVB - Firmware Volume Block
Copyright (c) 2006, 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.
**/
#include "Fvb.h"
@ -35,12 +26,109 @@ Key:
// Lib will ASSERT if more FVB devices than this are added to the system.
//
STATIC FVB_ENTRY *mFvbEntry;
// STATIC EFI_EVENT mFvbVirtualNotifyEvent;
STATIC EFI_EVENT mFvbRegistration;
// STATIC EFI_EVENT mEfiFvbVirtualNotifyEvent;
STATIC BOOLEAN mEfiFvbInitialized = FALSE;
STATIC UINTN mFvbCount;
/**
Check whether an address is runtime memory or not.
@param Address The Address being checked.
@retval TRUE The address is runtime memory.
@retval FALSE The address is not runtime memory.
**/
BOOLEAN
IsRuntimeMemory (
IN VOID *Address
)
{
EFI_STATUS Status;
UINT8 TmpMemoryMap[1];
UINTN MapKey;
UINTN DescriptorSize;
UINT32 DescriptorVersion;
UINTN MemoryMapSize;
EFI_MEMORY_DESCRIPTOR *MemoryMap;
EFI_MEMORY_DESCRIPTOR *MemoryMapPtr;
BOOLEAN IsRuntime;
UINTN Index;
IsRuntime = FALSE;
//
// Get System MemoryMapSize
//
MemoryMapSize = 1;
Status = gBS->GetMemoryMap (
&MemoryMapSize,
(EFI_MEMORY_DESCRIPTOR *)TmpMemoryMap,
&MapKey,
&DescriptorSize,
&DescriptorVersion
);
ASSERT (Status == EFI_BUFFER_TOO_SMALL);
//
// Enlarge space here, because we will allocate pool now.
//
MemoryMapSize += EFI_PAGE_SIZE;
Status = gBS->AllocatePool (
EfiBootServicesData,
MemoryMapSize,
(VOID**)&MemoryMap
);
ASSERT_EFI_ERROR (Status);
//
// Get System MemoryMap
//
Status = gBS->GetMemoryMap (
&MemoryMapSize,
MemoryMap,
&MapKey,
&DescriptorSize,
&DescriptorVersion
);
ASSERT_EFI_ERROR (Status);
MemoryMapPtr = MemoryMap;
//
// Search the request Address
//
for (Index = 0; Index < (MemoryMapSize / DescriptorSize); Index++) {
if (((EFI_PHYSICAL_ADDRESS)(UINTN)Address >= MemoryMap->PhysicalStart) &&
((EFI_PHYSICAL_ADDRESS)(UINTN)Address < MemoryMap->PhysicalStart
+ LShiftU64 (MemoryMap->NumberOfPages, EFI_PAGE_SHIFT))) {
//
// Found it
//
if (MemoryMap->Attribute & EFI_MEMORY_RUNTIME) {
IsRuntime = TRUE;
}
break;
}
//
// Get next item
//
MemoryMap = (EFI_MEMORY_DESCRIPTOR *)((UINTN)MemoryMap + DescriptorSize);
}
//
// Done
//
gBS->FreePool (MemoryMapPtr);
return IsRuntime;
}
/**
Update mFvbEntry. Add new entry, or update existing entry if Fvb protocol is
reinstalled.
@param Event The Event that is being processed
@param Context Event Context
**/
STATIC
VOID
EFIAPI
@ -48,22 +136,6 @@ FvbNotificationEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
Update mFvbEntry. Add new entry, or update existing entry if Fvb protocol is
reinstalled.
Arguments:
Event - The Event that is being processed
Context - Event Context
Returns:
None
--*/
{
EFI_STATUS Status;
UINTN BufferSize;
@ -103,6 +175,9 @@ Returns:
// Use the next free slot for a new entry
//
UpdateIndex = mFvbCount++;
//
// Check the UpdateIndex whether exceed the maximum value.
//
ASSERT (UpdateIndex < MAX_FVB_COUNT);
mFvbEntry[UpdateIndex].Handle = Handle;
}
@ -114,43 +189,59 @@ Returns:
//
// Get the interface pointer and if it's ours, skip it
//
Status = gBS->HandleProtocol (Handle, &gEfiFirmwareVolumeBlockProtocolGuid, (VOID **)&mFvbEntry[UpdateIndex].Fvb);
Status = gBS->HandleProtocol (
Handle,
&gEfiFirmwareVolumeBlockProtocolGuid,
(VOID **) &mFvbEntry[UpdateIndex].Fvb
);
ASSERT_EFI_ERROR (Status);
Status = gBS->HandleProtocol (Handle, &gEfiFvbExtensionProtocolGuid, (VOID **)&mFvbEntry[UpdateIndex].FvbExtension);
Status = gBS->HandleProtocol (
Handle,
&gEfiFvbExtensionProtocolGuid,
(VOID **) &mFvbEntry[UpdateIndex].FvbExtension
);
if (Status != EFI_SUCCESS) {
mFvbEntry[UpdateIndex].FvbExtension = NULL;
}
//
// Check the FVB can be accessed in RUNTIME, The FVBs in FVB handle list comes
// from two way:
// 1) Dxe Core. (FVB information is transferred from FV HOB).
// 2) FVB driver.
// The FVB produced Dxe core is used for discoverying DXE driver and dispatch. These
// FVBs can only be accessed in boot time.
// FVB driver will discovery all FV in FLASH and these FVBs can be accessed in runtime.
// The FVB itself produced by FVB driver is allocated in runtime memory. So we can
// determine the what FVB can be accessed in RUNTIME by judging whether FVB itself is allocated
// in RUNTIME memory.
//
mFvbEntry[UpdateIndex].IsRuntimeAccess = IsRuntimeMemory (mFvbEntry[UpdateIndex].Fvb);
}
}
/**
Convert all pointers in mFvbEntry after ExitBootServices.
@param Event The Event that is being processed
@param Context Event Context
**/
VOID
EFIAPI
FvbVirtualAddressChangeNotifyEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
Convert all pointers in mFvbEntry after ExitBootServices.
Arguments:
Event - The Event that is being processed
Context - Event Context
Returns:
None
--*/
{
UINTN Index;
if (mFvbEntry != NULL) {
for (Index = 0; Index < MAX_FVB_COUNT; Index++) {
if (!mFvbEntry[Index].IsRuntimeAccess) {
continue;
}
if (NULL != mFvbEntry[Index].Fvb) {
EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->GetBlockSize);
EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->GetPhysicalAddress);
@ -172,24 +263,21 @@ Returns:
}
}
/**
Library constructor function entry.
@param ImageHandle The handle of image who call this libary.
@param SystemTable The point of System Table.
@retval EFI_SUCESS Sucess construct this library.
@retval Others Fail to contruct this libary.
**/
EFI_STATUS
EFIAPI
FvbLibInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Initialize globals and register Fvb Protocol notification function.
Arguments:
None
Returns:
EFI_SUCCESS
--*/
{
UINTN Status;
mFvbCount = 0;
@ -237,15 +325,34 @@ Returns:
return EFI_SUCCESS;
}
//
// =============================================================================
// The following functions wrap Fvb protocol in the Runtime Lib functions.
// The Instance translates into Fvb instance. The Fvb order defined by HOBs and
// thus the sequence of FVB protocol addition define Instance.
//
// EfiFvbInitialize () must be called before any of the following functions
// must be called.
// =============================================================================
//
/**
Reads specified number of bytes into a buffer from the specified block
@param Instance The FV instance to be read from.
@param Lba The logical block address to be read from
@param Offset Offset into the block at which to begin reading
@param NumBytes Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes read
@param Buffer Pointer to a caller allocated buffer that will be
used to hold the data read
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to Read block
@retval Others Fail to read block
**/
EFI_STATUS
EfiFvbReadBlock (
IN UINTN Instance,
@ -254,36 +361,34 @@ EfiFvbReadBlock (
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
/*++
Routine Description:
Reads specified number of bytes into a buffer from the specified block
Arguments:
Instance - The FV instance to be read from
Lba - The logical block address to be read from
Offset - Offset into the block at which to begin reading
NumBytes - Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes read
Buffer - Pointer to a caller allocated buffer that will be
used to hold the data read
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->Read (mFvbEntry[Instance].Fvb, Lba, Offset, NumBytes, Buffer);
}
/**
Writes specified number of bytes from the input buffer to the block
@param Instance The FV instance to be written to
@param Lba The starting logical block index to write to
@param Offset Offset into the block at which to begin writing
@param NumBytes Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes actually written
@param Buffer Pointer to a caller allocated buffer that contains
the source for the write
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to write block
@retval Others Fail to write block
**/
EFI_STATUS
EfiFvbWriteBlock (
IN UINTN Instance,
@ -292,160 +397,152 @@ EfiFvbWriteBlock (
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
/*++
Routine Description:
Writes specified number of bytes from the input buffer to the block
Arguments:
Instance - The FV instance to be written to
Lba - The starting logical block index to write to
Offset - Offset into the block at which to begin writing
NumBytes - Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes actually written
Buffer - Pointer to a caller allocated buffer that contains
the source for the write
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->Write (mFvbEntry[Instance].Fvb, Lba, Offset, NumBytes, Buffer);
}
/**
Erases and initializes a firmware volume block
@param Instance The FV instance to be erased
@param Lba The logical block index to be erased
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to erase block
@retval Others Fail to erase block
**/
EFI_STATUS
EfiFvbEraseBlock (
IN UINTN Instance,
IN EFI_LBA Lba
)
/*++
Routine Description:
Erases and initializes a firmware volume block
Arguments:
Instance - The FV instance to be erased
Lba - The logical block index to be erased
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->EraseBlocks (mFvbEntry[Instance].Fvb, Lba, -1);
}
/**
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
@param Instance The FV instance whose attributes is going to be returned
@param Attributes Output buffer which contains attributes
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to get Fv attribute
@retval Others Fail to get Fv attribute
**/
EFI_STATUS
EfiFvbGetVolumeAttributes (
IN UINTN Instance,
OUT EFI_FVB_ATTRIBUTES *Attributes
)
/*++
Routine Description:
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
Arguments:
Instance - The FV instance whose attributes is going to be
returned
Attributes - Output buffer which contains attributes
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->GetVolumeAttributes (mFvbEntry[Instance].Fvb, Attributes);
}
/**
Modifies the current settings of the firmware volume according to the
input parameter, and returns the new setting of the volume
@param Instance The FV instance whose attributes is going to be
modified
@param Attributes On input, it is a pointer to EFI_FVB_ATTRIBUTES
containing the desired firmware volume settings.
On successful return, it contains the new settings
of the firmware volume
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to set Fv attribute
@retval Others Fail to set Fv attribute
**/
EFI_STATUS
EfiFvbSetVolumeAttributes (
IN UINTN Instance,
IN EFI_FVB_ATTRIBUTES Attributes
)
/*++
Routine Description:
Modifies the current settings of the firmware volume according to the
input parameter, and returns the new setting of the volume
Arguments:
Instance - The FV instance whose attributes is going to be
modified
Attributes - On input, it is a pointer to EFI_FVB_ATTRIBUTES
containing the desired firmware volume settings.
On successful return, it contains the new settings
of the firmware volume
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->SetVolumeAttributes (mFvbEntry[Instance].Fvb, &Attributes);
}
/**
Retrieves the physical address of a memory mapped FV
@param Instance The FV instance whose base address is going to be
returned
@param BaseAddress Pointer to a caller allocated EFI_PHYSICAL_ADDRESS
that on successful return, contains the base address
of the firmware volume.
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to get physical address
@retval Others Fail to get physical address
**/
EFI_STATUS
EfiFvbGetPhysicalAddress (
IN UINTN Instance,
OUT EFI_PHYSICAL_ADDRESS *BaseAddress
)
/*++
Routine Description:
Retrieves the physical address of a memory mapped FV
Arguments:
Instance - The FV instance whose base address is going to be
returned
BaseAddress - Pointer to a caller allocated EFI_PHYSICAL_ADDRESS
that on successful return, contains the base address
of the firmware volume.
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->GetPhysicalAddress (mFvbEntry[Instance].Fvb, BaseAddress);
}
/**
Retrieve the size of a logical block
@param Instance The FV instance whose block size is going to be
returned
@param Lba Indicates which block to return the size for.
@param BlockSize A pointer to a caller allocated UINTN in which
the size of the block is returned
@param NumOfBlocks a pointer to a caller allocated UINTN in which the
number of consecutive blocks starting with Lba is
returned. All blocks in this range have a size of
BlockSize
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to get block size
@retval Others Fail to get block size
**/
EFI_STATUS
EfiFvbGetBlockSize (
IN UINTN Instance,
@ -453,37 +550,32 @@ EfiFvbGetBlockSize (
OUT UINTN *BlockSize,
OUT UINTN *NumOfBlocks
)
/*++
Routine Description:
Retrieve the size of a logical block
Arguments:
Instance - The FV instance whose block size is going to be
returned
Lba - Indicates which block to return the size for.
BlockSize - A pointer to a caller allocated UINTN in which
the size of the block is returned
NumOfBlocks - a pointer to a caller allocated UINTN in which the
number of consecutive blocks starting with Lba is
returned. All blocks in this range have a size of
BlockSize
Returns:
EFI_SUCCESS - The firmware volume was read successfully and
contents are in Buffer
EFI_INVALID_PARAMETER - invalid parameter
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
return mFvbEntry[Instance].Fvb->GetBlockSize (mFvbEntry[Instance].Fvb, Lba, BlockSize, NumOfBlocks);
}
/**
Erases and initializes a specified range of a firmware volume
@param Instance The FV instance to be erased
@param StartLba The starting logical block index to be erased
@param OffsetStartLba Offset into the starting block at which to
begin erasing
@param LastLba The last logical block index to be erased
@param OffsetLastLba Offset into the last block at which to end erasing
@retval EFI_INVALID_PARAMETER Invalid parameter
@retval EFI_SUCESS Sucess to erase custom block range
@retval Others Fail to erase custom block range
**/
EFI_STATUS
EfiFvbEraseCustomBlockRange (
IN UINTN Instance,
@ -492,33 +584,15 @@ EfiFvbEraseCustomBlockRange (
IN EFI_LBA LastLba,
IN UINTN OffsetLastLba
)
/*++
Routine Description:
Erases and initializes a specified range of a firmware volume
Arguments:
Instance - The FV instance to be erased
StartLba - The starting logical block index to be erased
OffsetStartLba - Offset into the starting block at which to
begin erasing
LastLba - The last logical block index to be erased
OffsetLastLba - Offset into the last block at which to end erasing
Returns:
Status code
EFI_INVALID_PARAMETER - invalid parameter
EFI_UNSUPPORTED - not support
--*/
{
if (Instance >= mFvbCount) {
return EFI_INVALID_PARAMETER;
}
if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
return EFI_INVALID_PARAMETER;
}
if (!(mFvbEntry[Instance].FvbExtension)) {
return EFI_UNSUPPORTED;
}