diff options
Diffstat (limited to 'EdkModulePkg/Library/EdkFvbServiceLib/Ia32/Fvb.c')
| -rw-r--r-- | EdkModulePkg/Library/EdkFvbServiceLib/Ia32/Fvb.c | 611 |
1 files changed, 0 insertions, 611 deletions
diff --git a/EdkModulePkg/Library/EdkFvbServiceLib/Ia32/Fvb.c b/EdkModulePkg/Library/EdkFvbServiceLib/Ia32/Fvb.c deleted file mode 100644 index 12a55c9..0000000 --- a/EdkModulePkg/Library/EdkFvbServiceLib/Ia32/Fvb.c +++ /dev/null @@ -1,611 +0,0 @@ -/**@file
-
- Firmware Volume Block Protocol Runtime Abstraction
-
- mFvbEntry is an array of Handle Fvb pairs. The Fvb Lib Instance matches the
- index in the mFvbEntry array. This should be the same sequence as the FVB's
- were described in the HOB. We have to remember the handle so we can tell if
- the protocol has been reinstalled and it needs updateing.
-
- If you are using any of these lib functions.you must first call FvbInitialize ().
-
-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"
-
-//
-// Lib will ASSERT if more FVB devices than this are added to the system.
-//
-STATIC FVB_ENTRY *mFvbEntry;
-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
-FvbNotificationEvent (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- EFI_STATUS Status;
- UINTN BufferSize;
- EFI_HANDLE Handle;
- UINTN Index;
- UINTN UpdateIndex;
-
- while (TRUE) {
- BufferSize = sizeof (Handle);
- Status = gBS->LocateHandle (
- ByRegisterNotify,
- &gEfiFirmwareVolumeBlockProtocolGuid,
- mFvbRegistration,
- &BufferSize,
- &Handle
- );
- if (EFI_ERROR (Status)) {
- //
- // Exit Path of While Loop....
- //
- break;
- }
-
- UpdateIndex = MAX_FVB_COUNT;
- for (Index = 0; Index < mFvbCount; Index++) {
- if (mFvbEntry[Index].Handle == Handle) {
- //
- // If the handle is already in the table just update the protocol
- //
- UpdateIndex = Index;
- break;
- }
- }
-
- if (UpdateIndex == MAX_FVB_COUNT) {
- //
- // 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;
- }
- //
- // The array does not have enough entries
- //
- ASSERT (UpdateIndex < MAX_FVB_COUNT);
-
- //
- // Get the interface pointer and if it's ours, skip it
- //
- Status = gBS->HandleProtocol (
- Handle,
- &gEfiFirmwareVolumeBlockProtocolGuid,
- (VOID **) &mFvbEntry[UpdateIndex].Fvb
- );
- ASSERT_EFI_ERROR (Status);
-
- 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
- )
-{
- 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);
- EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->GetVolumeAttributes);
- EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->SetVolumeAttributes);
- EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->Read);
- EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->Write);
- EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb->EraseBlocks);
- EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].Fvb);
- }
-
- if (NULL != mFvbEntry[Index].FvbExtension) {
- EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].FvbExtension->EraseFvbCustomBlock);
- EfiConvertPointer (0x0, (VOID **) &mFvbEntry[Index].FvbExtension);
- }
- }
-
- EfiConvertPointer (0x0, (VOID **) &mFvbEntry);
- }
-}
-
-/**
- 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
- )
-{
- UINTN Status;
- mFvbCount = 0;
-
- Status = gBS->AllocatePool (
- EfiRuntimeServicesData,
- (UINTN) sizeof (FVB_ENTRY) * MAX_FVB_COUNT,
- (VOID *) &mFvbEntry
- );
-
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- ZeroMem (mFvbEntry, sizeof (FVB_ENTRY) * MAX_FVB_COUNT);
-
- EfiCreateProtocolNotifyEvent (
- &gEfiFirmwareVolumeBlockProtocolGuid,
- TPL_CALLBACK,
- FvbNotificationEvent,
- NULL,
- &mFvbRegistration
- );
-
- //
- // Register SetVirtualAddressMap () notify function
- //
- // Status = gBS->CreateEvent (
- // EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,
- // TPL_NOTIFY,
- // EfiRuntimeLibFvbVirtualNotifyEvent,
- // NULL,
- // &mEfiFvbVirtualNotifyEvent
- // );
- // ASSERT_EFI_ERROR (Status);
- //
-
- //
- // Register SetVirtualAddressMap () notify function
- //
-
- ASSERT_EFI_ERROR (Status);
-
- mEfiFvbInitialized = TRUE;
-
- 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,
- IN EFI_LBA Lba,
- IN UINTN Offset,
- IN OUT UINTN *NumBytes,
- IN UINT8 *Buffer
- )
-{
- 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,
- IN EFI_LBA Lba,
- IN UINTN Offset,
- IN OUT UINTN *NumBytes,
- IN UINT8 *Buffer
- )
-{
- 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
- )
-{
- 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
- )
-{
- 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
- )
-{
- 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
- )
-{
- 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,
- IN EFI_LBA Lba,
- OUT UINTN *BlockSize,
- OUT UINTN *NumOfBlocks
- )
-{
- 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,
- IN EFI_LBA StartLba,
- IN UINTN OffsetStartLba,
- IN EFI_LBA LastLba,
- IN UINTN OffsetLastLba
- )
-{
- if (Instance >= mFvbCount) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (EfiAtRuntime() && !mFvbEntry[Instance].IsRuntimeAccess) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (!(mFvbEntry[Instance].FvbExtension)) {
- return EFI_UNSUPPORTED;
- }
-
- if (!(mFvbEntry[Instance].FvbExtension->EraseFvbCustomBlock)) {
- return EFI_UNSUPPORTED;
- }
-
- return mFvbEntry[Instance].FvbExtension->EraseFvbCustomBlock (
- mFvbEntry[Instance].FvbExtension,
- StartLba,
- OffsetStartLba,
- LastLba,
- OffsetLastLba
- );
-}
|