| /** @file | |
| Help functions used by PCD DXE driver. | |
| Copyright (c) 2006 - 2010, 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 "Service.h" | |
| PCD_DATABASE *mPcdDatabase; | |
| LIST_ENTRY *mCallbackFnTable; | |
| /** | |
| Get the PCD entry pointer in PCD database. | |
| This routine will visit PCD database to find the PCD entry according to given | |
| token number. The given token number is autogened by build tools and it will be | |
| translated to local token number. Local token number contains PCD's type and | |
| offset of PCD entry in PCD database. | |
| @param TokenNumber Token's number, it is autogened by build tools | |
| @param GetSize The size of token's value | |
| @return PCD entry pointer in PCD database | |
| **/ | |
| VOID * | |
| GetWorker ( | |
| IN UINTN TokenNumber, | |
| IN UINTN GetSize | |
| ) | |
| { | |
| UINT32 *LocalTokenNumberTable; | |
| EFI_GUID *GuidTable; | |
| UINT8 *StringTable; | |
| EFI_GUID *Guid; | |
| UINT16 *Name; | |
| VARIABLE_HEAD *VariableHead; | |
| UINT8 *VaraiableDefaultBuffer; | |
| UINT8 *Data; | |
| VPD_HEAD *VpdHead; | |
| UINT8 *PcdDb; | |
| VOID *RetPtr; | |
| UINTN MaxSize; | |
| UINTN TmpTokenNumber; | |
| UINTN DataSize; | |
| EFI_STATUS Status; | |
| UINT32 LocalTokenNumber; | |
| UINT32 Offset; | |
| UINT16 StringTableIdx; | |
| BOOLEAN IsPeiDb; | |
| // | |
| // Aquire lock to prevent reentrance from TPL_CALLBACK level | |
| // | |
| EfiAcquireLock (&mPcdDatabaseLock); | |
| RetPtr = NULL; | |
| // | |
| // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER. | |
| // We have to decrement TokenNumber by 1 to make it usable | |
| // as the array index. | |
| // | |
| TokenNumber--; | |
| TmpTokenNumber = TokenNumber; | |
| // | |
| // PCD_TOTAL_TOKEN_NUMBER is a auto-generated constant. | |
| // It could be zero. EBC compiler is very choosy. It may | |
| // report warning. So we add 1 in each size of the | |
| // comparison. | |
| // | |
| ASSERT (TokenNumber + 1 < PCD_TOTAL_TOKEN_NUMBER + 1); | |
| ASSERT ((GetSize == DxePcdGetSize (TokenNumber + 1)) || (GetSize == 0)); | |
| // EBC compiler is very choosy. It may report warning about comparison | |
| // between UINTN and 0 . So we add 1 in each size of the | |
| // comparison. | |
| IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1) ? TRUE : FALSE); | |
| LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable : | |
| mPcdDatabase->DxeDb.Init.LocalTokenNumberTable; | |
| TokenNumber = IsPeiDb ? TokenNumber : | |
| TokenNumber - PEI_LOCAL_TOKEN_NUMBER; | |
| LocalTokenNumber = LocalTokenNumberTable[TokenNumber]; | |
| if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) { | |
| if (GetSize == 0) { | |
| GetPtrTypeSize (TmpTokenNumber, &MaxSize); | |
| } else { | |
| MaxSize = GetSize; | |
| } | |
| LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize, IsPeiDb); | |
| } | |
| PcdDb = IsPeiDb ? ((UINT8 *) &mPcdDatabase->PeiDb) : ((UINT8 *) &mPcdDatabase->DxeDb); | |
| if (IsPeiDb) { | |
| StringTable = (UINT8 *) (&mPcdDatabase->PeiDb.Init.StringTable[0]); | |
| } else { | |
| StringTable = (UINT8 *) (&mPcdDatabase->DxeDb.Init.StringTable[0]); | |
| } | |
| Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK; | |
| switch (LocalTokenNumber & PCD_TYPE_ALL_SET) { | |
| case PCD_TYPE_VPD: | |
| VpdHead = (VPD_HEAD *) ((UINT8 *) PcdDb + Offset); | |
| RetPtr = (VOID *) (UINTN) (PcdGet32 (PcdVpdBaseAddress) + VpdHead->Offset); | |
| break; | |
| case PCD_TYPE_HII|PCD_TYPE_STRING: | |
| case PCD_TYPE_HII: | |
| if (IsPeiDb) { | |
| GuidTable = (EFI_GUID *) (&mPcdDatabase->PeiDb.Init.GuidTable[0]); | |
| } else { | |
| GuidTable = (EFI_GUID *) (&mPcdDatabase->DxeDb.Init.GuidTable[0]); | |
| } | |
| VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset); | |
| Guid = GuidTable + VariableHead->GuidTableIndex; | |
| Name = (UINT16*)(StringTable + VariableHead->StringIndex); | |
| if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) { | |
| // | |
| // If a HII type PCD's datum type is VOID*, the DefaultValueOffset is the index of | |
| // string array in string table. | |
| // | |
| StringTableIdx = *(UINT16*)((UINT8 *) PcdDb + VariableHead->DefaultValueOffset); | |
| VaraiableDefaultBuffer = (VOID *) (StringTable + StringTableIdx); | |
| Status = GetHiiVariable (Guid, Name, &Data, &DataSize); | |
| if (Status == EFI_SUCCESS) { | |
| if (GetSize == 0) { | |
| // | |
| // It is a pointer type. So get the MaxSize reserved for | |
| // this PCD entry. | |
| // | |
| GetPtrTypeSize (TmpTokenNumber, &GetSize); | |
| } | |
| CopyMem (VaraiableDefaultBuffer, Data + VariableHead->Offset, GetSize); | |
| FreePool (Data); | |
| } | |
| RetPtr = (VOID *) VaraiableDefaultBuffer; | |
| } else { | |
| VaraiableDefaultBuffer = (UINT8 *) PcdDb + VariableHead->DefaultValueOffset; | |
| Status = GetHiiVariable (Guid, Name, &Data, &DataSize); | |
| if (Status == EFI_SUCCESS) { | |
| if (GetSize == 0) { | |
| // | |
| // It is a pointer type. So get the MaxSize reserved for | |
| // this PCD entry. | |
| // | |
| GetPtrTypeSize (TmpTokenNumber, &GetSize); | |
| } | |
| CopyMem (VaraiableDefaultBuffer, Data + VariableHead->Offset, GetSize); | |
| FreePool (Data); | |
| } | |
| // | |
| // If the operation is successful, we copy the data | |
| // to the default value buffer in the PCD Database. | |
| // So that we can free the Data allocated in GetHiiVariable. | |
| // | |
| // | |
| // If the operation is not successful, | |
| // Return 1) either the default value specified by Platform Integrator | |
| // 2) Or the value Set by a PCD set operation. | |
| // | |
| RetPtr = (VOID *) VaraiableDefaultBuffer; | |
| } | |
| break; | |
| case PCD_TYPE_STRING: | |
| StringTableIdx = *(UINT16*)((UINT8 *) PcdDb + Offset); | |
| RetPtr = (VOID *) (StringTable + StringTableIdx); | |
| break; | |
| case PCD_TYPE_DATA: | |
| RetPtr = (VOID *) ((UINT8 *) PcdDb + Offset); | |
| break; | |
| default: | |
| ASSERT (FALSE); | |
| break; | |
| } | |
| EfiReleaseLock (&mPcdDatabaseLock); | |
| return RetPtr; | |
| } | |
| /** | |
| Register the callback function for a PCD entry. | |
| This routine will register a callback function to a PCD entry by given token number | |
| and token space guid. | |
| @param TokenNumber PCD token's number, it is autogened by build tools. | |
| @param Guid PCD token space's guid, | |
| if not NULL, this PCD is dynamicEx type PCD. | |
| @param CallBackFunction Callback function pointer | |
| @return EFI_SUCCESS Always success for registering callback function. | |
| **/ | |
| EFI_STATUS | |
| DxeRegisterCallBackWorker ( | |
| IN UINTN TokenNumber, | |
| IN CONST EFI_GUID *Guid, OPTIONAL | |
| IN PCD_PROTOCOL_CALLBACK CallBackFunction | |
| ) | |
| { | |
| CALLBACK_FN_ENTRY *FnTableEntry; | |
| LIST_ENTRY *ListHead; | |
| LIST_ENTRY *ListNode; | |
| if (Guid != NULL) { | |
| TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber); | |
| } | |
| // | |
| // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER. | |
| // We have to decrement TokenNumber by 1 to make it usable | |
| // as the array index of mCallbackFnTable[]. | |
| // | |
| ListHead = &mCallbackFnTable[TokenNumber - 1]; | |
| ListNode = GetFirstNode (ListHead); | |
| while (ListNode != ListHead) { | |
| FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node); | |
| if (FnTableEntry->CallbackFn == CallBackFunction) { | |
| // | |
| // We only allow a Callback function to be register once | |
| // for a TokenNumber. So just return EFI_SUCCESS | |
| // | |
| return EFI_SUCCESS; | |
| } | |
| ListNode = GetNextNode (ListHead, ListNode); | |
| } | |
| FnTableEntry = AllocatePool (sizeof(CALLBACK_FN_ENTRY)); | |
| ASSERT (FnTableEntry != NULL); | |
| FnTableEntry->CallbackFn = CallBackFunction; | |
| InsertTailList (ListHead, &FnTableEntry->Node); | |
| return EFI_SUCCESS; | |
| } | |
| /** | |
| UnRegister the callback function for a PCD entry. | |
| This routine will unregister a callback function to a PCD entry by given token number | |
| and token space guid. | |
| @param TokenNumber PCD token's number, it is autogened by build tools. | |
| @param Guid PCD token space's guid. | |
| if not NULL, this PCD is dynamicEx type PCD. | |
| @param CallBackFunction Callback function pointer | |
| @retval EFI_SUCCESS Callback function is success to be unregister. | |
| @retval EFI_INVALID_PARAMETER Can not find the PCD entry by given token number. | |
| **/ | |
| EFI_STATUS | |
| DxeUnRegisterCallBackWorker ( | |
| IN UINTN TokenNumber, | |
| IN CONST EFI_GUID *Guid, OPTIONAL | |
| IN PCD_PROTOCOL_CALLBACK CallBackFunction | |
| ) | |
| { | |
| CALLBACK_FN_ENTRY *FnTableEntry; | |
| LIST_ENTRY *ListHead; | |
| LIST_ENTRY *ListNode; | |
| if (Guid != NULL) { | |
| TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) TokenNumber); | |
| } | |
| // | |
| // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER. | |
| // We have to decrement TokenNumber by 1 to make it usable | |
| // as the array index of mCallbackFnTable[]. | |
| // | |
| ListHead = &mCallbackFnTable[TokenNumber - 1]; | |
| ListNode = GetFirstNode (ListHead); | |
| while (ListNode != ListHead) { | |
| FnTableEntry = CR_FNENTRY_FROM_LISTNODE(ListNode, CALLBACK_FN_ENTRY, Node); | |
| if (FnTableEntry->CallbackFn == CallBackFunction) { | |
| // | |
| // We only allow a Callback function to be register once | |
| // for a TokenNumber. So we can safely remove the Node from | |
| // the Link List and return EFI_SUCCESS. | |
| // | |
| RemoveEntryList (ListNode); | |
| FreePool (FnTableEntry); | |
| return EFI_SUCCESS; | |
| } | |
| ListNode = GetNextNode (ListHead, ListNode); | |
| } | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| /** | |
| Get next token number in given token space. | |
| This routine is used for dynamicEx type PCD. It will firstly scan token space | |
| table to get token space according to given token space guid. Then scan given | |
| token number in found token space, if found, then return next token number in | |
| this token space. | |
| @param Guid Token space guid. Next token number will be scaned in | |
| this token space. | |
| @param TokenNumber Token number. | |
| If PCD_INVALID_TOKEN_NUMBER, return first token number in | |
| token space table. | |
| If not PCD_INVALID_TOKEN_NUMBER, return next token number | |
| in token space table. | |
| @param GuidTable Token space guid table. It will be used for scan token space | |
| by given token space guid. | |
| @param SizeOfGuidTable The size of guid table. | |
| @param ExMapTable DynamicEx token number mapping table. | |
| @param SizeOfExMapTable The size of dynamicEx token number mapping table. | |
| @retval EFI_NOT_FOUND Can not given token space or token number. | |
| @retval EFI_SUCCESS Success to get next token number. | |
| **/ | |
| EFI_STATUS | |
| ExGetNextTokeNumber ( | |
| IN CONST EFI_GUID *Guid, | |
| IN OUT UINTN *TokenNumber, | |
| IN EFI_GUID *GuidTable, | |
| IN UINTN SizeOfGuidTable, | |
| IN DYNAMICEX_MAPPING *ExMapTable, | |
| IN UINTN SizeOfExMapTable | |
| ) | |
| { | |
| EFI_GUID *MatchGuid; | |
| UINTN Index; | |
| UINTN GuidTableIdx; | |
| BOOLEAN Found; | |
| // | |
| // Scan token space guid | |
| // | |
| MatchGuid = ScanGuid (GuidTable, SizeOfGuidTable, Guid); | |
| if (MatchGuid == NULL) { | |
| return EFI_NOT_FOUND; | |
| } | |
| // | |
| // Find the token space table in dynamicEx mapping table. | |
| // | |
| Found = FALSE; | |
| GuidTableIdx = MatchGuid - GuidTable; | |
| for (Index = 0; Index < SizeOfExMapTable; Index++) { | |
| if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) { | |
| Found = TRUE; | |
| break; | |
| } | |
| } | |
| if (Found) { | |
| // | |
| // If given token number is PCD_INVALID_TOKEN_NUMBER, then return the first | |
| // token number in found token space. | |
| // | |
| if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) { | |
| *TokenNumber = ExMapTable[Index].ExTokenNumber; | |
| return EFI_SUCCESS; | |
| } | |
| for ( ; Index < SizeOfExMapTable; Index++) { | |
| if (ExMapTable[Index].ExTokenNumber == *TokenNumber) { | |
| Index ++; | |
| if (Index == SizeOfExMapTable) { | |
| // | |
| // Exceed the length of ExMap Table | |
| // | |
| *TokenNumber = PCD_INVALID_TOKEN_NUMBER; | |
| return EFI_SUCCESS; | |
| } else if (ExMapTable[Index].ExGuidIndex == GuidTableIdx) { | |
| // | |
| // Found the next match | |
| // | |
| *TokenNumber = ExMapTable[Index].ExTokenNumber; | |
| return EFI_SUCCESS; | |
| } else { | |
| // | |
| // Guid has been changed. It is the next Token Space Guid. | |
| // We should flag no more TokenNumber. | |
| // | |
| *TokenNumber = PCD_INVALID_TOKEN_NUMBER; | |
| return EFI_SUCCESS; | |
| } | |
| } | |
| } | |
| } | |
| return EFI_NOT_FOUND; | |
| } | |
| /** | |
| Initialize the PCD database in DXE phase. | |
| PCD database in DXE phase also contains PCD database in PEI phase which is copied | |
| from GUID Hob. | |
| **/ | |
| VOID | |
| BuildPcdDxeDataBase ( | |
| VOID | |
| ) | |
| { | |
| PEI_PCD_DATABASE *PeiDatabase; | |
| EFI_HOB_GUID_TYPE *GuidHob; | |
| UINTN Index; | |
| mPcdDatabase = AllocateZeroPool (sizeof(PCD_DATABASE)); | |
| ASSERT (mPcdDatabase != NULL); | |
| GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid); | |
| if (GuidHob != NULL) { | |
| // | |
| // We will copy over the PEI phase's PCD Database. | |
| // | |
| // If no PEIMs use dynamic Pcd Entry, the Pcd Service PEIM | |
| // should not be included at all. So the GuidHob could | |
| // be NULL. If it is NULL, we just copy over the DXE Default | |
| // Value to PCD Database. | |
| // | |
| PeiDatabase = (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob); | |
| // | |
| // Copy PCD Entries refereneced in PEI phase to PCD DATABASE | |
| // | |
| CopyMem (&mPcdDatabase->PeiDb, PeiDatabase, sizeof (PEI_PCD_DATABASE)); | |
| } | |
| // | |
| // Copy PCD Entries with default value to PCD DATABASE | |
| // | |
| CopyMem (&mPcdDatabase->DxeDb.Init, &gDXEPcdDbInit, sizeof(DXE_PCD_DATABASE_INIT)); | |
| // | |
| // Initialized the Callback Function Table | |
| // | |
| mCallbackFnTable = AllocateZeroPool (PCD_TOTAL_TOKEN_NUMBER * sizeof (LIST_ENTRY)); | |
| ASSERT(mCallbackFnTable != NULL); | |
| // EBC compiler is very choosy. It may report warning about comparison | |
| // between UINTN and 0 . So we add 1 in each size of the | |
| // comparison. | |
| for (Index = 0; Index + 1 < PCD_TOTAL_TOKEN_NUMBER + 1; Index++) { | |
| InitializeListHead (&mCallbackFnTable[Index]); | |
| } | |
| } | |
| /** | |
| Get Variable which contains HII type PCD entry. | |
| @param VariableGuid Variable's guid | |
| @param VariableName Variable's unicode name string | |
| @param VariableData Variable's data pointer, | |
| @param VariableSize Variable's size. | |
| @return the status of gRT->GetVariable | |
| **/ | |
| EFI_STATUS | |
| GetHiiVariable ( | |
| IN EFI_GUID *VariableGuid, | |
| IN UINT16 *VariableName, | |
| OUT UINT8 **VariableData, | |
| OUT UINTN *VariableSize | |
| ) | |
| { | |
| UINTN Size; | |
| EFI_STATUS Status; | |
| UINT8 *Buffer; | |
| Size = 0; | |
| Buffer = NULL; | |
| // | |
| // Firstly get the real size of HII variable | |
| // | |
| Status = gRT->GetVariable ( | |
| (UINT16 *)VariableName, | |
| VariableGuid, | |
| NULL, | |
| &Size, | |
| Buffer | |
| ); | |
| // | |
| // Allocate buffer to hold whole variable data according to variable size. | |
| // | |
| if (Status == EFI_BUFFER_TOO_SMALL) { | |
| Buffer = (UINT8 *) AllocatePool (Size); | |
| ASSERT (Buffer != NULL); | |
| Status = gRT->GetVariable ( | |
| VariableName, | |
| VariableGuid, | |
| NULL, | |
| &Size, | |
| Buffer | |
| ); | |
| ASSERT (Status == EFI_SUCCESS); | |
| *VariableData = Buffer; | |
| *VariableSize = Size; | |
| } | |
| return Status; | |
| } | |
| /** | |
| Find the local token number according to system SKU ID. | |
| @param LocalTokenNumber PCD token number | |
| @param Size The size of PCD entry. | |
| @param IsPeiDb If TRUE, the PCD entry is initialized in PEI phase. | |
| If False, the PCD entry is initialized in DXE phase. | |
| @return Token number according to system SKU ID. | |
| **/ | |
| UINT32 | |
| GetSkuEnabledTokenNumber ( | |
| UINT32 LocalTokenNumber, | |
| UINTN Size, | |
| BOOLEAN IsPeiDb | |
| ) | |
| { | |
| SKU_HEAD *SkuHead; | |
| SKU_ID *SkuIdTable; | |
| INTN Index; | |
| UINT8 *Value; | |
| SKU_ID *PhaseSkuIdTable; | |
| UINT8 *PcdDb; | |
| ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0); | |
| PcdDb = IsPeiDb ? (UINT8 *) &mPcdDatabase->PeiDb : (UINT8 *) &mPcdDatabase->DxeDb; | |
| SkuHead = (SKU_HEAD *) (PcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK)); | |
| Value = (UINT8 *) (PcdDb + SkuHead->SkuDataStartOffset); | |
| PhaseSkuIdTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.SkuIdTable : | |
| mPcdDatabase->DxeDb.Init.SkuIdTable; | |
| SkuIdTable = &PhaseSkuIdTable[SkuHead->SkuIdTableOffset]; | |
| // | |
| // Find the current system's SKU ID entry in SKU ID table. | |
| // | |
| for (Index = 0; Index < SkuIdTable[0]; Index++) { | |
| if (mPcdDatabase->PeiDb.Init.SystemSkuId == SkuIdTable[Index + 1]) { | |
| break; | |
| } | |
| } | |
| ASSERT (Index < SkuIdTable[0]); | |
| switch (LocalTokenNumber & PCD_TYPE_ALL_SET) { | |
| case PCD_TYPE_VPD: | |
| Value = (UINT8 *) &(((VPD_HEAD *) Value)[Index]); | |
| return (UINT32) ((Value - PcdDb) | PCD_TYPE_VPD); | |
| case PCD_TYPE_HII: | |
| Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]); | |
| return (UINT32) ((Value - PcdDb) | PCD_TYPE_HII); | |
| case PCD_TYPE_STRING: | |
| Value = (UINT8 *) &(((STRING_HEAD *) Value)[Index]); | |
| return (UINT32) ((Value - PcdDb) | PCD_TYPE_STRING); | |
| case PCD_TYPE_DATA: | |
| Value += Size * Index; | |
| return (UINT32) (Value - PcdDb); | |
| default: | |
| ASSERT (FALSE); | |
| } | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Invoke the callback function when dynamic PCD entry was set, if this PCD entry | |
| has registered callback function. | |
| @param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx | |
| type PCD. | |
| @param Guid DynamicEx PCD's guid, if this PCD entry is dynamicEx type | |
| PCD. | |
| @param TokenNumber PCD token number generated by build tools. | |
| @param Data Value want to be set for this PCD entry | |
| @param Size The size of value | |
| **/ | |
| VOID | |
| InvokeCallbackOnSet ( | |
| UINT32 ExTokenNumber, | |
| CONST EFI_GUID *Guid, OPTIONAL | |
| UINTN TokenNumber, | |
| VOID *Data, | |
| UINTN Size | |
| ) | |
| { | |
| CALLBACK_FN_ENTRY *FnTableEntry; | |
| LIST_ENTRY *ListHead; | |
| LIST_ENTRY *ListNode; | |
| // | |
| // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER. | |
| // We have to decrement TokenNumber by 1 to make it usable | |
| // as the array index of mCallbackFnTable[]. | |
| // | |
| ListHead = &mCallbackFnTable[TokenNumber - 1]; | |
| ListNode = GetFirstNode (ListHead); | |
| while (ListNode != ListHead) { | |
| FnTableEntry = CR_FNENTRY_FROM_LISTNODE (ListNode, CALLBACK_FN_ENTRY, Node); | |
| FnTableEntry->CallbackFn(Guid, | |
| (Guid == NULL) ? TokenNumber : ExTokenNumber, | |
| Data, | |
| Size); | |
| ListNode = GetNextNode (ListHead, ListNode); | |
| } | |
| return; | |
| } | |
| /** | |
| Wrapper function for setting non-pointer type value for a PCD entry. | |
| @param TokenNumber Pcd token number autogenerated by build tools. | |
| @param Data Value want to be set for PCD entry | |
| @param Size Size of value. | |
| @return status of SetWorker. | |
| **/ | |
| EFI_STATUS | |
| SetValueWorker ( | |
| IN UINTN TokenNumber, | |
| IN VOID *Data, | |
| IN UINTN Size | |
| ) | |
| { | |
| return SetWorker (TokenNumber, Data, &Size, FALSE); | |
| } | |
| /** | |
| Set value for an PCD entry | |
| @param TokenNumber Pcd token number autogenerated by build tools. | |
| @param Data Value want to be set for PCD entry | |
| @param Size Size of value. | |
| @param PtrType If TRUE, the type of PCD entry's value is Pointer. | |
| If False, the type of PCD entry's value is not Pointer. | |
| @retval EFI_INVALID_PARAMETER If this PCD type is VPD, VPD PCD can not be set. | |
| @retval EFI_INVALID_PARAMETER If Size can not be set to size table. | |
| @retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database. | |
| @retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in | |
| range of UINT8, UINT16, UINT32, UINT64 | |
| @retval EFI_NOT_FOUND Can not find the PCD type according to token number. | |
| **/ | |
| EFI_STATUS | |
| SetWorker ( | |
| IN UINTN TokenNumber, | |
| IN VOID *Data, | |
| IN OUT UINTN *Size, | |
| IN BOOLEAN PtrType | |
| ) | |
| { | |
| UINT32 *LocalTokenNumberTable; | |
| BOOLEAN IsPeiDb; | |
| UINT32 LocalTokenNumber; | |
| EFI_GUID *GuidTable; | |
| UINT8 *StringTable; | |
| EFI_GUID *Guid; | |
| UINT16 *Name; | |
| UINTN VariableOffset; | |
| VOID *InternalData; | |
| VARIABLE_HEAD *VariableHead; | |
| UINTN Offset; | |
| UINT8 *PcdDb; | |
| EFI_STATUS Status; | |
| UINTN MaxSize; | |
| UINTN TmpTokenNumber; | |
| // | |
| // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER. | |
| // We have to decrement TokenNumber by 1 to make it usable | |
| // as the array index. | |
| // | |
| TokenNumber--; | |
| TmpTokenNumber = TokenNumber; | |
| // | |
| // EBC compiler is very choosy. It may report warning about comparison | |
| // between UINTN and 0 . So we add 1 in each size of the | |
| // comparison. | |
| // | |
| ASSERT (TokenNumber + 1 < PCD_TOTAL_TOKEN_NUMBER + 1); | |
| if (PtrType) { | |
| if (*Size > DxePcdGetSize (TokenNumber + 1)) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| } else { | |
| if (*Size != DxePcdGetSize (TokenNumber + 1)) { | |
| return EFI_INVALID_PARAMETER; | |
| } | |
| } | |
| // | |
| // EBC compiler is very choosy. It may report warning about comparison | |
| // between UINTN and 0 . So we add 1 in each size of the | |
| // comparison. | |
| // | |
| if ((TokenNumber + 1 < PEI_NEX_TOKEN_NUMBER + 1) || | |
| (TokenNumber + 1 >= PEI_LOCAL_TOKEN_NUMBER + 1 || TokenNumber + 1 < (PEI_LOCAL_TOKEN_NUMBER + DXE_NEX_TOKEN_NUMBER + 1))) { | |
| InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, *Size); | |
| } | |
| // | |
| // Aquire lock to prevent reentrance from TPL_CALLBACK level | |
| // | |
| EfiAcquireLock (&mPcdDatabaseLock); | |
| // | |
| // EBC compiler is very choosy. It may report warning about comparison | |
| // between UINTN and 0 . So we add 1 in each size of the | |
| // comparison. | |
| // | |
| IsPeiDb = (BOOLEAN) ((TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1) ? TRUE : FALSE); | |
| LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable : | |
| mPcdDatabase->DxeDb.Init.LocalTokenNumberTable; | |
| TokenNumber = IsPeiDb ? TokenNumber | |
| : TokenNumber - PEI_LOCAL_TOKEN_NUMBER; | |
| LocalTokenNumber = LocalTokenNumberTable[TokenNumber]; | |
| if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) { | |
| if (PtrType) { | |
| GetPtrTypeSize (TmpTokenNumber, &MaxSize); | |
| } else { | |
| MaxSize = *Size; | |
| } | |
| LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize, IsPeiDb); | |
| } | |
| Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK; | |
| PcdDb = IsPeiDb ? ((UINT8 *) &mPcdDatabase->PeiDb) : ((UINT8 *) &mPcdDatabase->DxeDb); | |
| if (IsPeiDb) { | |
| StringTable = (UINT8 *) (&mPcdDatabase->PeiDb.Init.StringTable[0]); | |
| } else { | |
| StringTable = (UINT8 *) (&mPcdDatabase->DxeDb.Init.StringTable[0]); | |
| } | |
| InternalData = PcdDb + Offset; | |
| switch (LocalTokenNumber & PCD_TYPE_ALL_SET) { | |
| case PCD_TYPE_VPD: | |
| ASSERT (FALSE); | |
| Status = EFI_INVALID_PARAMETER; | |
| break; | |
| case PCD_TYPE_STRING: | |
| if (SetPtrTypeSize (TmpTokenNumber, Size)) { | |
| CopyMem (StringTable + *((UINT16 *)InternalData), Data, *Size); | |
| Status = EFI_SUCCESS; | |
| } else { | |
| Status = EFI_INVALID_PARAMETER; | |
| } | |
| break; | |
| case PCD_TYPE_HII|PCD_TYPE_STRING: | |
| case PCD_TYPE_HII: | |
| if (PtrType) { | |
| if (!SetPtrTypeSize (TmpTokenNumber, Size)) { | |
| Status = EFI_INVALID_PARAMETER; | |
| break; | |
| } | |
| } | |
| if (IsPeiDb) { | |
| GuidTable = (EFI_GUID *) (&mPcdDatabase->PeiDb.Init.GuidTable[0]); | |
| } else { | |
| GuidTable = (EFI_GUID *) (&mPcdDatabase->DxeDb.Init.GuidTable[0]); | |
| } | |
| VariableHead = (VARIABLE_HEAD *) (PcdDb + Offset); | |
| Guid = GuidTable + VariableHead->GuidTableIndex; | |
| Name = (UINT16*) (StringTable + VariableHead->StringIndex); | |
| VariableOffset = VariableHead->Offset; | |
| Status = SetHiiVariable (Guid, Name, Data, *Size, VariableOffset); | |
| if (EFI_NOT_FOUND == Status) { | |
| if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) { | |
| CopyMem ( | |
| StringTable + *(UINT16 *)(PcdDb + VariableHead->DefaultValueOffset), | |
| Data, | |
| *Size | |
| ); | |
| } else { | |
| CopyMem (PcdDb + VariableHead->DefaultValueOffset, Data, *Size); | |
| } | |
| Status = EFI_SUCCESS; | |
| } | |
| break; | |
| case PCD_TYPE_DATA: | |
| if (PtrType) { | |
| if (SetPtrTypeSize (TmpTokenNumber, Size)) { | |
| CopyMem (InternalData, Data, *Size); | |
| Status = EFI_SUCCESS; | |
| } else { | |
| Status = EFI_INVALID_PARAMETER; | |
| } | |
| break; | |
| } | |
| Status = EFI_SUCCESS; | |
| switch (*Size) { | |
| case sizeof(UINT8): | |
| *((UINT8 *) InternalData) = *((UINT8 *) Data); | |
| break; | |
| case sizeof(UINT16): | |
| *((UINT16 *) InternalData) = *((UINT16 *) Data); | |
| break; | |
| case sizeof(UINT32): | |
| *((UINT32 *) InternalData) = *((UINT32 *) Data); | |
| break; | |
| case sizeof(UINT64): | |
| *((UINT64 *) InternalData) = *((UINT64 *) Data); | |
| break; | |
| default: | |
| ASSERT (FALSE); | |
| Status = EFI_NOT_FOUND; | |
| break; | |
| } | |
| break; | |
| default: | |
| ASSERT (FALSE); | |
| Status = EFI_NOT_FOUND; | |
| break; | |
| } | |
| EfiReleaseLock (&mPcdDatabaseLock); | |
| return Status; | |
| } | |
| /** | |
| Wrapper function for get PCD value for dynamic-ex PCD. | |
| @param Guid Token space guid for dynamic-ex PCD. | |
| @param ExTokenNumber Token number for dynamic-ex PCD. | |
| @param GetSize The size of dynamic-ex PCD value. | |
| @return PCD entry in PCD database. | |
| **/ | |
| VOID * | |
| ExGetWorker ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINTN ExTokenNumber, | |
| IN UINTN GetSize | |
| ) | |
| { | |
| return GetWorker(GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber), GetSize); | |
| } | |
| /** | |
| Wrapper function for set PCD value for non-Pointer type dynamic-ex PCD. | |
| @param ExTokenNumber Token number for dynamic-ex PCD. | |
| @param Guid Token space guid for dynamic-ex PCD. | |
| @param Data Value want to be set. | |
| @param SetSize The size of value. | |
| @return status of ExSetWorker(). | |
| **/ | |
| EFI_STATUS | |
| ExSetValueWorker ( | |
| IN UINTN ExTokenNumber, | |
| IN CONST EFI_GUID *Guid, | |
| IN VOID *Data, | |
| IN UINTN SetSize | |
| ) | |
| { | |
| return ExSetWorker (ExTokenNumber, Guid, Data, &SetSize, FALSE); | |
| } | |
| /** | |
| Set value for a dynamic PCD entry. | |
| This routine find the local token number according to dynamic-ex PCD's token | |
| space guid and token number firstly, and invoke callback function if this PCD | |
| entry registered callback function. Finally, invoken general SetWorker to set | |
| PCD value. | |
| @param ExTokenNumber Dynamic-ex PCD token number. | |
| @param Guid Token space guid for dynamic-ex PCD. | |
| @param Data PCD value want to be set | |
| @param SetSize Size of value. | |
| @param PtrType If TRUE, this PCD entry is pointer type. | |
| If FALSE, this PCD entry is not pointer type. | |
| @return status of SetWorker(). | |
| **/ | |
| EFI_STATUS | |
| ExSetWorker ( | |
| IN UINTN ExTokenNumber, | |
| IN CONST EFI_GUID *Guid, | |
| IN VOID *Data, | |
| IN OUT UINTN *SetSize, | |
| IN BOOLEAN PtrType | |
| ) | |
| { | |
| UINTN TokenNumber; | |
| TokenNumber = GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber); | |
| InvokeCallbackOnSet ((UINT32) ExTokenNumber, Guid, TokenNumber, Data, *SetSize); | |
| return SetWorker (TokenNumber, Data, SetSize, PtrType); | |
| } | |
| /** | |
| Set value for HII-type PCD. | |
| A HII-type PCD's value is stored in a variable. Setting/Getting the value of | |
| HII-type PCD is to visit this variable. | |
| @param VariableGuid Guid of variable which stored value of a HII-type PCD. | |
| @param VariableName Unicode name of variable which stored value of a HII-type PCD. | |
| @param Data Value want to be set. | |
| @param DataSize Size of value | |
| @param Offset Value offset of HII-type PCD in variable. | |
| @return status of GetVariable()/SetVariable(). | |
| **/ | |
| EFI_STATUS | |
| SetHiiVariable ( | |
| IN EFI_GUID *VariableGuid, | |
| IN UINT16 *VariableName, | |
| IN CONST VOID *Data, | |
| IN UINTN DataSize, | |
| IN UINTN Offset | |
| ) | |
| { | |
| UINTN Size; | |
| VOID *Buffer; | |
| EFI_STATUS Status; | |
| UINT32 Attribute; | |
| UINTN SetSize; | |
| Size = 0; | |
| SetSize = 0; | |
| // | |
| // Try to get original variable size information. | |
| // | |
| Status = gRT->GetVariable ( | |
| (UINT16 *)VariableName, | |
| VariableGuid, | |
| NULL, | |
| &Size, | |
| NULL | |
| ); | |
| if (Status == EFI_BUFFER_TOO_SMALL) { | |
| // | |
| // Patch new PCD's value to offset in given HII variable. | |
| // | |
| if (Size >= (DataSize + Offset)) { | |
| SetSize = Size; | |
| } else { | |
| SetSize = DataSize + Offset; | |
| } | |
| Buffer = AllocatePool (SetSize); | |
| ASSERT (Buffer != NULL); | |
| Status = gRT->GetVariable ( | |
| VariableName, | |
| VariableGuid, | |
| &Attribute, | |
| &Size, | |
| Buffer | |
| ); | |
| ASSERT_EFI_ERROR (Status); | |
| CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize); | |
| Status = gRT->SetVariable ( | |
| VariableName, | |
| VariableGuid, | |
| Attribute, | |
| SetSize, | |
| Buffer | |
| ); | |
| FreePool (Buffer); | |
| return Status; | |
| } else if (Status == EFI_NOT_FOUND) { | |
| // | |
| // If variable does not exist, a new variable need to be created. | |
| // | |
| Size = Offset + DataSize; | |
| Buffer = AllocateZeroPool (Size); | |
| ASSERT (Buffer != NULL); | |
| CopyMem ((UINT8 *)Buffer + Offset, Data, DataSize); | |
| Status = gRT->SetVariable ( | |
| VariableName, | |
| VariableGuid, | |
| EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE, | |
| Size, | |
| Buffer | |
| ); | |
| FreePool (Buffer); | |
| return Status; | |
| } | |
| // | |
| // If we drop to here, the value is failed to be written in to variable area | |
| // So, we will save the data in the PCD Database's volatile area. | |
| // | |
| return Status; | |
| } | |
| /** | |
| Get local token number according to dynamic-ex PCD's {token space guid:token number} | |
| A dynamic-ex type PCD, developer must provide pair of token space guid: token number | |
| in DEC file. PCD database maintain a mapping table that translate pair of {token | |
| space guid: token number} to local token number. | |
| @param Guid Token space guid for dynamic-ex PCD entry. | |
| @param ExTokenNumber Dynamic-ex PCD token number. | |
| @return local token number for dynamic-ex PCD. | |
| **/ | |
| UINTN | |
| GetExPcdTokenNumber ( | |
| IN CONST EFI_GUID *Guid, | |
| IN UINT32 ExTokenNumber | |
| ) | |
| { | |
| UINT32 Index; | |
| DYNAMICEX_MAPPING *ExMap; | |
| EFI_GUID *GuidTable; | |
| EFI_GUID *MatchGuid; | |
| UINTN MatchGuidIdx; | |
| if (!PEI_DATABASE_EMPTY) { | |
| ExMap = mPcdDatabase->PeiDb.Init.ExMapTable; | |
| GuidTable = mPcdDatabase->PeiDb.Init.GuidTable; | |
| MatchGuid = ScanGuid (GuidTable, sizeof(mPcdDatabase->PeiDb.Init.GuidTable), Guid); | |
| if (MatchGuid != NULL) { | |
| MatchGuidIdx = MatchGuid - GuidTable; | |
| for (Index = 0; Index < PEI_EXMAPPING_TABLE_SIZE; Index++) { | |
| if ((ExTokenNumber == ExMap[Index].ExTokenNumber) && | |
| (MatchGuidIdx == ExMap[Index].ExGuidIndex)) { | |
| return ExMap[Index].LocalTokenNumber; | |
| } | |
| } | |
| } | |
| } | |
| ExMap = mPcdDatabase->DxeDb.Init.ExMapTable; | |
| GuidTable = mPcdDatabase->DxeDb.Init.GuidTable; | |
| MatchGuid = ScanGuid (GuidTable, sizeof(mPcdDatabase->DxeDb.Init.GuidTable), Guid); | |
| // | |
| // We need to ASSERT here. If GUID can't be found in GuidTable, this is a | |
| // error in the BUILD system. | |
| // | |
| ASSERT (MatchGuid != NULL); | |
| MatchGuidIdx = MatchGuid - GuidTable; | |
| for (Index = 0; Index < DXE_EXMAPPING_TABLE_SIZE; Index++) { | |
| if ((ExTokenNumber == ExMap[Index].ExTokenNumber) && | |
| (MatchGuidIdx == ExMap[Index].ExGuidIndex)) { | |
| return ExMap[Index].LocalTokenNumber; | |
| } | |
| } | |
| ASSERT (FALSE); | |
| return 0; | |
| } | |
| /** | |
| Get SKU ID table from PCD database. | |
| @param LocalTokenNumberTableIdx Index of local token number in token number table. | |
| @param IsPeiPcd If TRUE, | |
| @return Pointer to SKU ID array table | |
| **/ | |
| SKU_ID * | |
| GetSkuIdArray ( | |
| IN UINTN LocalTokenNumberTableIdx, | |
| IN BOOLEAN IsPeiPcd | |
| ) | |
| { | |
| SKU_HEAD *SkuHead; | |
| UINTN LocalTokenNumber; | |
| UINT8 *Database; | |
| if (IsPeiPcd) { | |
| LocalTokenNumber = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable[LocalTokenNumberTableIdx]; | |
| Database = (UINT8 *) &mPcdDatabase->PeiDb; | |
| } else { | |
| LocalTokenNumber = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable[LocalTokenNumberTableIdx - PEI_LOCAL_TOKEN_NUMBER]; | |
| Database = (UINT8 *) &mPcdDatabase->DxeDb; | |
| } | |
| ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) != 0); | |
| SkuHead = (SKU_HEAD *) ((UINT8 *)Database + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK)); | |
| return (SKU_ID *) (Database + SkuHead->SkuIdTableOffset); | |
| } | |
| /** | |
| Wrapper function of getting index of PCD entry in size table. | |
| @param LocalTokenNumberTableIdx Index of this PCD in local token number table. | |
| @param IsPeiDb If TRUE, the pcd entry is initialized in PEI phase, | |
| If FALSE, the pcd entry is initialized in DXE phase. | |
| @return index of PCD entry in size table. | |
| **/ | |
| UINTN | |
| GetSizeTableIndex ( | |
| IN UINTN LocalTokenNumberTableIdx, | |
| IN BOOLEAN IsPeiDb | |
| ) | |
| { | |
| UINT32 *LocalTokenNumberTable; | |
| UINTN LocalTokenNumber; | |
| UINTN Index; | |
| UINTN SizeTableIdx; | |
| SKU_ID *SkuIdTable; | |
| if (IsPeiDb) { | |
| LocalTokenNumberTable = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable; | |
| } else { | |
| LocalTokenNumberTable = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable; | |
| } | |
| SizeTableIdx = 0; | |
| for (Index = 0; Index < LocalTokenNumberTableIdx; Index ++) { | |
| LocalTokenNumber = LocalTokenNumberTable[Index]; | |
| if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) { | |
| // | |
| // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type | |
| // PCD entry. | |
| // | |
| if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) { | |
| // | |
| // We have only one entry for VPD enabled PCD entry: | |
| // 1) MAX Size. | |
| // We consider current size is equal to MAX size. | |
| // | |
| SizeTableIdx++; | |
| } else { | |
| if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) { | |
| // | |
| // We have only two entry for Non-Sku enabled PCD entry: | |
| // 1) MAX SIZE | |
| // 2) Current Size | |
| // | |
| SizeTableIdx += 2; | |
| } else { | |
| // | |
| // We have these entry for SKU enabled PCD entry | |
| // 1) MAX SIZE | |
| // 2) Current Size for each SKU_ID (It is equal to MaxSku). | |
| // | |
| SkuIdTable = GetSkuIdArray (Index, IsPeiDb); | |
| SizeTableIdx += (UINTN)*SkuIdTable + 1; | |
| } | |
| } | |
| } | |
| } | |
| return SizeTableIdx; | |
| } | |
| /** | |
| Get size of POINTER type PCD value. | |
| @param LocalTokenNumberTableIdx Index of local token number in local token number table. | |
| @param MaxSize Maxmium size of POINTER type PCD value. | |
| @return size of POINTER type PCD value. | |
| **/ | |
| UINTN | |
| GetPtrTypeSize ( | |
| IN UINTN LocalTokenNumberTableIdx, | |
| OUT UINTN *MaxSize | |
| ) | |
| { | |
| INTN SizeTableIdx; | |
| UINTN LocalTokenNumber; | |
| SKU_ID *SkuIdTable; | |
| SIZE_INFO *SizeTable; | |
| UINTN Index; | |
| BOOLEAN IsPeiDb; | |
| UINT32 *LocalTokenNumberTable; | |
| // EBC compiler is very choosy. It may report warning about comparison | |
| // between UINTN and 0 . So we add 1 in each size of the | |
| // comparison. | |
| IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < PEI_LOCAL_TOKEN_NUMBER + 1); | |
| if (IsPeiDb) { | |
| LocalTokenNumberTable = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable; | |
| SizeTable = mPcdDatabase->PeiDb.Init.SizeTable; | |
| } else { | |
| LocalTokenNumberTableIdx -= PEI_LOCAL_TOKEN_NUMBER; | |
| LocalTokenNumberTable = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable; | |
| SizeTable = mPcdDatabase->DxeDb.Init.SizeTable; | |
| } | |
| LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx]; | |
| ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER); | |
| SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb); | |
| *MaxSize = SizeTable[SizeTableIdx]; | |
| // | |
| // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type | |
| // PCD entry. | |
| // | |
| if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) { | |
| // | |
| // We have only one entry for VPD enabled PCD entry: | |
| // 1) MAX Size. | |
| // We consider current size is equal to MAX size. | |
| // | |
| return *MaxSize; | |
| } else { | |
| if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) { | |
| // | |
| // We have only two entry for Non-Sku enabled PCD entry: | |
| // 1) MAX SIZE | |
| // 2) Current Size | |
| // | |
| return SizeTable[SizeTableIdx + 1]; | |
| } else { | |
| // | |
| // We have these entry for SKU enabled PCD entry | |
| // 1) MAX SIZE | |
| // 2) Current Size for each SKU_ID (It is equal to MaxSku). | |
| // | |
| SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb); | |
| for (Index = 0; Index < SkuIdTable[0]; Index++) { | |
| if (SkuIdTable[1 + Index] == mPcdDatabase->PeiDb.Init.SystemSkuId) { | |
| return SizeTable[SizeTableIdx + 1 + Index]; | |
| } | |
| } | |
| return SizeTable[SizeTableIdx + 1]; | |
| } | |
| } | |
| } | |
| /** | |
| Set size of POINTER type PCD value. The size should not exceed the maximum size | |
| of this PCD value. | |
| @param LocalTokenNumberTableIdx Index of local token number in local token number table. | |
| @param CurrentSize Size of POINTER type PCD value. | |
| @retval TRUE Success to set size of PCD value. | |
| @retval FALSE Fail to set size of PCD value. | |
| **/ | |
| BOOLEAN | |
| SetPtrTypeSize ( | |
| IN UINTN LocalTokenNumberTableIdx, | |
| IN OUT UINTN *CurrentSize | |
| ) | |
| { | |
| INTN SizeTableIdx; | |
| UINTN LocalTokenNumber; | |
| SKU_ID *SkuIdTable; | |
| SIZE_INFO *SizeTable; | |
| UINTN Index; | |
| UINTN MaxSize; | |
| BOOLEAN IsPeiDb; | |
| UINT32 *LocalTokenNumberTable; | |
| // | |
| // EBC compiler is very choosy. It may report warning about comparison | |
| // between UINTN and 0 . So we add 1 in each size of the | |
| // comparison. | |
| // | |
| IsPeiDb = (BOOLEAN) (LocalTokenNumberTableIdx + 1 < PEI_LOCAL_TOKEN_NUMBER + 1); | |
| if (IsPeiDb) { | |
| LocalTokenNumberTable = mPcdDatabase->PeiDb.Init.LocalTokenNumberTable; | |
| SizeTable = mPcdDatabase->PeiDb.Init.SizeTable; | |
| } else { | |
| LocalTokenNumberTableIdx -= PEI_LOCAL_TOKEN_NUMBER; | |
| LocalTokenNumberTable = mPcdDatabase->DxeDb.Init.LocalTokenNumberTable; | |
| SizeTable = mPcdDatabase->DxeDb.Init.SizeTable; | |
| } | |
| LocalTokenNumber = LocalTokenNumberTable[LocalTokenNumberTableIdx]; | |
| ASSERT ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER); | |
| SizeTableIdx = GetSizeTableIndex (LocalTokenNumberTableIdx, IsPeiDb); | |
| MaxSize = SizeTable[SizeTableIdx]; | |
| // | |
| // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type | |
| // PCD entry. | |
| // | |
| if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) { | |
| // | |
| // We shouldn't come here as we don't support SET for VPD | |
| // | |
| ASSERT (FALSE); | |
| return FALSE; | |
| } else { | |
| if ((*CurrentSize > MaxSize) || | |
| (*CurrentSize == MAX_ADDRESS)) { | |
| *CurrentSize = MaxSize; | |
| return FALSE; | |
| } | |
| if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) { | |
| // | |
| // We have only two entry for Non-Sku enabled PCD entry: | |
| // 1) MAX SIZE | |
| // 2) Current Size | |
| // | |
| SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize; | |
| return TRUE; | |
| } else { | |
| // | |
| // We have these entry for SKU enabled PCD entry | |
| // 1) MAX SIZE | |
| // 2) Current Size for each SKU_ID (It is equal to MaxSku). | |
| // | |
| SkuIdTable = GetSkuIdArray (LocalTokenNumberTableIdx, IsPeiDb); | |
| for (Index = 0; Index < SkuIdTable[0]; Index++) { | |
| if (SkuIdTable[1 + Index] == mPcdDatabase->PeiDb.Init.SystemSkuId) { | |
| SizeTable[SizeTableIdx + 1 + Index] = (SIZE_INFO) *CurrentSize; | |
| return TRUE; | |
| } | |
| } | |
| SizeTable[SizeTableIdx + 1] = (SIZE_INFO) *CurrentSize; | |
| return TRUE; | |
| } | |
| } | |
| } |