The driver internal functions are implmented here.\r
They build Pei PCD database, and provide access service to PCD database.\r
\r
-Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
)\r
{\r
UINT32 LocalTokenNumber;\r
- UINTN Size;\r
- UINTN MaxSize;\r
\r
//\r
// TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
\r
LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + TokenNumber);\r
\r
- Size = (LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;\r
-\r
- if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {\r
- if (Size == 0) {\r
- GetPtrTypeSize (TokenNumber, &MaxSize, Database);\r
- } else {\r
- MaxSize = Size;\r
- }\r
- LocalTokenNumber = GetSkuEnabledTokenNumber (LocalTokenNumber & ~PCD_TYPE_SKU_ENABLED, MaxSize);\r
- }\r
-\r
return LocalTokenNumber;\r
}\r
\r
case PCD_DATUM_TYPE_POINTER:\r
return EFI_PCD_TYPE_PTR;\r
case PCD_DATUM_TYPE_UINT8:\r
- if (LocalTokenNumber & PCD_DATUM_TYPE_UINT8_BOOLEAN) {\r
+ if ((LocalTokenNumber & PCD_DATUM_TYPE_UINT8_BOOLEAN) == PCD_DATUM_TYPE_UINT8_BOOLEAN) {\r
return EFI_PCD_TYPE_BOOL;\r
} else {\r
return EFI_PCD_TYPE_8;\r
)\r
{\r
UINT8 *StringTable;\r
+ UINTN NameSize;\r
PCD_NAME_INDEX *PcdNameIndex;\r
CHAR8 *TokenSpaceName;\r
CHAR8 *PcdName;\r
CHAR8 *Name;\r
\r
+ //\r
+ // Return NULL when PCD name table is absent.\r
+ //\r
+ if (Database->PcdNameTableOffset == 0) {\r
+ return NULL;\r
+ }\r
+\r
//\r
// TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
// We have to decrement TokenNumber by 1 to make it usable\r
//\r
// Need to get the full PCD name.\r
//\r
- Name = AllocateZeroPool (AsciiStrSize (TokenSpaceName) + AsciiStrSize (PcdName));\r
+ NameSize = AsciiStrSize (TokenSpaceName) + AsciiStrSize (PcdName);\r
+ Name = AllocateZeroPool (NameSize);\r
+ ASSERT (Name != NULL);\r
//\r
// Catenate TokenSpaceCName and PcdCName with a '.' to form the full PCD name.\r
//\r
- AsciiStrCat (Name, TokenSpaceName);\r
+ AsciiStrCatS (Name, NameSize, TokenSpaceName);\r
Name[AsciiStrSize (TokenSpaceName) - sizeof (CHAR8)] = '.';\r
- AsciiStrCat (Name, PcdName); \r
+ AsciiStrCatS (Name, NameSize, PcdName);\r
}\r
\r
return Name;\r
@param[in] Guid The 128-bit unique value that designates the namespace from which to extract the value.\r
@param[in] TokenNumber The PCD token number.\r
@param[out] PcdInfo The returned information associated with the requested TokenNumber.\r
- The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName. \r
+ The caller is responsible for freeing the buffer that is allocated by callee for PcdInfo->PcdName.\r
\r
@retval EFI_SUCCESS The PCD information was returned successfully\r
@retval EFI_NOT_FOUND The PCD service could not find the requested token number.\r
PcdInfo->PcdSize = 0;\r
//\r
// Here use one representative in the token space to get the TokenSpaceCName.\r
- // \r
+ //\r
PcdInfo->PcdName = GetPcdName (TRUE, Database, ExMapTable[Index].TokenNumber);\r
return EFI_SUCCESS;\r
} else if (ExMapTable[Index].ExTokenNumber == TokenNumber) {\r
//\r
TokenNumber--;\r
// EBC compiler is very choosy. It may report warning about comparison\r
- // between UINTN and 0 . So we add 1 in each size of the \r
+ // between UINTN and 0 . So we add 1 in each size of the\r
// comparison.\r
ASSERT ((TokenNumber + 1) < (LocalTokenCount + 1));\r
}\r
\r
GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r
ASSERT (GuidHob != NULL);\r
- \r
+\r
CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r
CallbackTable = CallbackTable + (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r
\r
\r
\r
/**\r
- Find the Pcd database. \r
+ Find the Pcd database.\r
\r
@param FileHandle Handle of the file the external PCD database binary located.\r
\r
SizeOfCallbackFnTable = Database->LocalTokenCount * sizeof (PCD_PPI_CALLBACK) * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry);\r
\r
CallbackFnTable = BuildGuidHob (&gEfiCallerIdGuid, SizeOfCallbackFnTable);\r
- \r
+\r
ZeroMem (CallbackFnTable, SizeOfCallbackFnTable);\r
\r
return Database;\r
}\r
\r
/**\r
- Find the local token number according to system SKU ID.\r
-\r
- @param LocalTokenNumber PCD token number\r
- @param Size The size of PCD entry.\r
-\r
- @return Token number according to system SKU ID.\r
-\r
-**/\r
-UINT32\r
-GetSkuEnabledTokenNumber (\r
- UINT32 LocalTokenNumber,\r
- UINTN Size\r
- ) \r
-{\r
- PEI_PCD_DATABASE *PeiPcdDb;\r
- SKU_HEAD *SkuHead;\r
- SKU_ID *SkuIdTable;\r
- INTN Index;\r
- UINT8 *Value;\r
- BOOLEAN FoundSku;\r
-\r
- PeiPcdDb = GetPcdDatabase ();\r
-\r
- ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0);\r
-\r
- SkuHead = (SKU_HEAD *) ((UINT8 *)PeiPcdDb + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r
- Value = (UINT8 *) ((UINT8 *)PeiPcdDb + (SkuHead->SkuDataStartOffset));\r
- SkuIdTable = (SKU_ID *) ((UINT8 *)PeiPcdDb + (SkuHead->SkuIdTableOffset));\r
-\r
- //\r
- // Find the current system's SKU ID entry in SKU ID table.\r
- //\r
- FoundSku = FALSE;\r
- for (Index = 0; Index < SkuIdTable[0]; Index++) {\r
- if (PeiPcdDb->SystemSkuId == SkuIdTable[Index + 1]) {\r
- FoundSku = TRUE;\r
- break;\r
- }\r
- }\r
-\r
- //\r
- // Find the default SKU ID entry in SKU ID table.\r
- //\r
- if(!FoundSku) {\r
- for (Index = 0; Index < SkuIdTable[0]; Index++) {\r
- if (0 == SkuIdTable[Index + 1]) {\r
- break;\r
- }\r
- }\r
- }\r
- ASSERT (Index < SkuIdTable[0]);\r
-\r
- switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r
- case PCD_TYPE_VPD:\r
- Value = (UINT8 *) &(((VPD_HEAD *) Value)[Index]);\r
- return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_VPD);\r
-\r
- case PCD_TYPE_HII:\r
- Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r
- return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_HII);\r
-\r
- case PCD_TYPE_HII|PCD_TYPE_STRING:\r
- Value = (UINT8 *) &(((VARIABLE_HEAD *) Value)[Index]);\r
- return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_HII | PCD_TYPE_STRING);\r
-\r
- case PCD_TYPE_STRING:\r
- Value = (UINT8 *) &(((STRING_HEAD *) Value)[Index]);\r
- return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_STRING);\r
-\r
- case PCD_TYPE_DATA:\r
- Value += Size * Index;\r
- return (UINT32) ((Value - (UINT8 *) PeiPcdDb) | PCD_TYPE_DATA);\r
-\r
- default:\r
- ASSERT (FALSE);\r
- }\r
-\r
- ASSERT (FALSE);\r
-\r
- return 0;\r
-}\r
-\r
-/**\r
- Invoke the callback function when dynamic PCD entry was set, if this PCD entry \r
+ Invoke the callback function when dynamic PCD entry was set, if this PCD entry\r
has registered callback function.\r
\r
@param ExTokenNumber DynamicEx PCD's token number, if this PCD entry is dyanmicEx\r
\r
if (Guid == NULL) {\r
// EBC compiler is very choosy. It may report warning about comparison\r
- // between UINTN and 0 . So we add 1 in each size of the \r
+ // between UINTN and 0 . So we add 1 in each size of the\r
// comparison.\r
ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r
}\r
\r
GuidHob = GetFirstGuidHob (&gEfiCallerIdGuid);\r
ASSERT (GuidHob != NULL);\r
- \r
+\r
CallbackTable = GET_GUID_HOB_DATA (GuidHob);\r
\r
CallbackTable += (TokenNumber * PcdGet32 (PcdMaxPeiPcdCallBackNumberPerPcdEntry));\r
@retval EFI_INVALID_PARAMETER If Size of non-Ptr type PCD does not match the size information in PCD database.\r
@retval EFI_NOT_FOUND If value type of PCD entry is intergrate, but not in\r
range of UINT8, UINT16, UINT32, UINT64\r
- @retval EFI_NOT_FOUND Can not find the PCD type according to token number. \r
+ @retval EFI_NOT_FOUND Can not find the PCD type according to token number.\r
**/\r
EFI_STATUS\r
SetWorker (\r
if (!FeaturePcdGet(PcdPeiFullPcdDatabaseEnable)) {\r
return EFI_UNSUPPORTED;\r
}\r
- \r
+\r
//\r
// TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
// We have to decrement TokenNumber by 1 to make it usable\r
LocalTokenCount = PeiPcdDb->LocalTokenCount;\r
\r
// EBC compiler is very choosy. It may report warning about comparison\r
- // between UINTN and 0 . So we add 1 in each size of the \r
+ // between UINTN and 0 . So we add 1 in each size of the\r
// comparison.\r
ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r
\r
\r
Offset = LocalTokenNumber & PCD_DATABASE_OFFSET_MASK;\r
InternalData = (VOID *) ((UINT8 *) PeiPcdDb + Offset);\r
- \r
+\r
switch (LocalTokenNumber & PCD_TYPE_ALL_SET) {\r
case PCD_TYPE_VPD:\r
case PCD_TYPE_HII:\r
return EFI_NOT_FOUND;\r
}\r
}\r
- \r
+\r
}\r
\r
ASSERT (FALSE);\r
\r
/**\r
Set value for a dynamic-ex PCD entry.\r
- \r
- This routine find the local token number according to dynamic-ex PCD's token \r
+\r
+ This routine find the local token number according to dynamic-ex PCD's token\r
space guid and token number firstly, and invoke callback function if this PCD\r
entry registered callback function. Finally, invoken general SetWorker to set\r
PCD value.\r
- \r
+\r
@param ExTokenNumber Dynamic-ex PCD token number.\r
@param Guid Token space guid for dynamic-ex PCD.\r
@param Data PCD value want to be set\r
if (TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r
return EFI_NOT_FOUND;\r
}\r
- \r
+\r
InvokeCallbackOnSet (ExTokenNumber, Guid, TokenNumber, Data, *Size);\r
\r
return SetWorker (TokenNumber, Data, Size, PtrType);\r
IN UINTN ExTokenNumber,\r
IN UINTN GetSize\r
)\r
-{ \r
+{\r
return GetWorker (GetExPcdTokenNumber (Guid, ExTokenNumber), GetSize);\r
}\r
\r
/**\r
Get the PCD entry pointer in PCD database.\r
- \r
+\r
This routine will visit PCD database to find the PCD entry according to given\r
- token number. The given token number is autogened by build tools and it will be \r
- translated to local token number. Local token number contains PCD's type and \r
+ token number. The given token number is autogened by build tools and it will be\r
+ translated to local token number. Local token number contains PCD's type and\r
offset of PCD entry in PCD database.\r
\r
@param TokenNumber Token's number, it is autogened by build tools\r
PEI_PCD_DATABASE *PeiPcdDb;\r
UINT32 LocalTokenNumber;\r
UINT32 LocalTokenCount;\r
+ UINT8 *VaraiableDefaultBuffer;\r
\r
//\r
// TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
LocalTokenCount = PeiPcdDb->LocalTokenCount;\r
\r
// EBC compiler is very choosy. It may report warning about comparison\r
- // between UINTN and 0 . So we add 1 in each size of the \r
+ // between UINTN and 0 . So we add 1 in each size of the\r
// comparison.\r
ASSERT (TokenNumber + 1 < (LocalTokenCount + 1));\r
\r
{\r
VPD_HEAD *VpdHead;\r
VpdHead = (VPD_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r
- return (VOID *) (UINTN) (PcdGet32 (PcdVpdBaseAddress) + VpdHead->Offset);\r
+ return (VOID *) ((UINTN) PcdGet32 (PcdVpdBaseAddress) + VpdHead->Offset);\r
}\r
- \r
+\r
case PCD_TYPE_HII|PCD_TYPE_STRING:\r
case PCD_TYPE_HII:\r
{\r
VariableHead = (VARIABLE_HEAD *) ((UINT8 *)PeiPcdDb + Offset);\r
- \r
+\r
Guid = (EFI_GUID *) ((UINT8 *)PeiPcdDb + PeiPcdDb->GuidTableOffset) + VariableHead->GuidTableIndex;\r
Name = (UINT16*)&StringTable[VariableHead->StringIndex];\r
\r
- Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r
-\r
- if (Status == EFI_SUCCESS) {\r
- return (VOID *) ((UINT8 *) Data + VariableHead->Offset);\r
- } else {\r
+ if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r
//\r
- // Return the default value specified by Platform Integrator \r
+ // If a HII type PCD's datum type is VOID*, the DefaultValueOffset is the index of\r
+ // string array in string table.\r
//\r
- if ((LocalTokenNumber & PCD_TYPE_ALL_SET) == (PCD_TYPE_HII|PCD_TYPE_STRING)) {\r
- return (VOID*)&StringTable[*(STRING_HEAD*)((UINT8*)PeiPcdDb + VariableHead->DefaultValueOffset)];\r
- } else {\r
- return (VOID *) ((UINT8 *) PeiPcdDb + VariableHead->DefaultValueOffset);\r
+ VaraiableDefaultBuffer = (UINT8 *) &StringTable[*(STRING_HEAD*)((UINT8*) PeiPcdDb + VariableHead->DefaultValueOffset)];\r
+ } else {\r
+ VaraiableDefaultBuffer = (UINT8 *) PeiPcdDb + VariableHead->DefaultValueOffset;\r
+ }\r
+ Status = GetHiiVariable (Guid, Name, &Data, &DataSize);\r
+ if ((Status == EFI_SUCCESS) && (DataSize >= (VariableHead->Offset + GetSize))) {\r
+ if (GetSize == 0) {\r
+ //\r
+ // It is a pointer type. So get the MaxSize reserved for\r
+ // this PCD entry.\r
+ //\r
+ GetPtrTypeSize (TokenNumber, &GetSize, PeiPcdDb);\r
+ if (GetSize > (DataSize - VariableHead->Offset)) {\r
+ //\r
+ // Use actual valid size.\r
+ //\r
+ GetSize = DataSize - VariableHead->Offset;\r
+ }\r
}\r
+ //\r
+ // If the operation is successful, we copy the data\r
+ // to the default value buffer in the PCD Database.\r
+ //\r
+ CopyMem (VaraiableDefaultBuffer, (UINT8 *) Data + VariableHead->Offset, GetSize);\r
}\r
+ return (VOID *) VaraiableDefaultBuffer;\r
}\r
\r
case PCD_TYPE_DATA:\r
default:\r
ASSERT (FALSE);\r
break;\r
- \r
+\r
}\r
\r
ASSERT (FALSE);\r
- \r
+\r
return NULL;\r
- \r
+\r
}\r
\r
/**\r
A dynamic-ex type PCD, developer must provide pair of token space guid: token number\r
in DEC file. PCD database maintain a mapping table that translate pair of {token\r
space guid: token number} to Token Number.\r
- \r
+\r
@param Guid Token space guid for dynamic-ex PCD entry.\r
@param ExTokenNumber Dynamic-ex PCD token number.\r
\r
@return Token Number for dynamic-ex PCD.\r
\r
**/\r
-UINTN \r
+UINTN\r
GetExPcdTokenNumber (\r
IN CONST EFI_GUID *Guid,\r
IN UINTN ExTokenNumber\r
// error in the BUILD system.\r
//\r
ASSERT (MatchGuid != NULL);\r
- \r
+\r
MatchGuidIdx = MatchGuid - GuidTable;\r
- \r
+\r
for (Index = 0; Index < PeiPcdDb->ExTokenCount; Index++) {\r
- if ((ExTokenNumber == ExMap[Index].ExTokenNumber) && \r
+ if ((ExTokenNumber == ExMap[Index].ExTokenNumber) &&\r
(MatchGuidIdx == ExMap[Index].ExGuidIndex)) {\r
return ExMap[Index].TokenNumber;\r
}\r
}\r
- \r
+\r
return PCD_INVALID_TOKEN_NUMBER;\r
}\r
\r
\r
GuidHob = GetFirstGuidHob (&gPcdDataBaseHobGuid);\r
ASSERT (GuidHob != NULL);\r
- \r
- return (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r
-}\r
\r
-/**\r
- Get SKU ID table from PCD database.\r
-\r
- @param LocalTokenNumberTableIdx Index of local token number in token number table.\r
- @param Database PCD database.\r
-\r
- @return Pointer to SKU ID array table\r
-\r
-**/\r
-SKU_ID *\r
-GetSkuIdArray (\r
- IN UINTN LocalTokenNumberTableIdx,\r
- IN PEI_PCD_DATABASE *Database\r
- )\r
-{\r
- SKU_HEAD *SkuHead;\r
- UINTN LocalTokenNumber;\r
-\r
- LocalTokenNumber = *((UINT32 *)((UINT8 *)Database + Database->LocalTokenNumberTableOffset) + LocalTokenNumberTableIdx);\r
-\r
- ASSERT ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) != 0);\r
-\r
- SkuHead = (SKU_HEAD *) ((UINT8 *)Database + (LocalTokenNumber & PCD_DATABASE_OFFSET_MASK));\r
-\r
- return (SKU_ID *) ((UINT8 *)Database + SkuHead->SkuIdTableOffset);\r
- \r
+ return (PEI_PCD_DATABASE *) GET_GUID_HOB_DATA (GuidHob);\r
}\r
\r
/**\r
UINTN Index;\r
UINTN SizeTableIdx;\r
UINTN LocalTokenNumber;\r
- SKU_ID *SkuIdTable;\r
- \r
+\r
SizeTableIdx = 0;\r
\r
for (Index = 0; Index < LocalTokenNumberTableIdx; Index++) {\r
\r
if ((LocalTokenNumber & PCD_DATUM_TYPE_ALL_SET) == PCD_DATUM_TYPE_POINTER) {\r
//\r
- // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type \r
+ // SizeTable only contain record for PCD_DATUM_TYPE_POINTER type\r
// PCD entry.\r
//\r
if ((LocalTokenNumber & PCD_TYPE_VPD) != 0) {\r
//\r
SizeTableIdx += 2;\r
} else {\r
- if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == 0) {\r
//\r
// We have only two entry for Non-Sku enabled PCD entry:\r
// 1) MAX SIZE\r
// 2) Current Size\r
//\r
SizeTableIdx += 2;\r
- } else {\r
- //\r
- // We have these entry for SKU enabled PCD entry\r
- // 1) MAX SIZE\r
- // 2) Current Size for each SKU_ID (It is equal to MaxSku).\r
- //\r
- SkuIdTable = GetSkuIdArray (Index, Database);\r
- SizeTableIdx += (UINTN)*SkuIdTable + 1;\r
- }\r
}\r
}\r
\r
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