/** @file\r
PCD DXE driver\r
\r
-Copyright (c) 2006, Intel Corporation\r
+Copyright (c) 2006 - 2007, Intel Corporation\r
All rights reserved. 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
#include "Service.h"\r
\r
+EFI_LOCK mPcdDatabaseLock = EFI_INITIALIZE_LOCK_VARIABLE(EFI_TPL_CALLBACK);\r
\r
PCD_PROTOCOL mPcdInstance = {\r
DxePcdSetSku,\r
\r
DxeRegisterCallBackOnSet,\r
DxeUnRegisterCallBackOnSet,\r
- DxePcdGetNextToken\r
+ DxePcdGetNextToken,\r
+ DxePcdGetNextTokenSpace\r
};\r
\r
\r
//\r
// Static global to reduce the code size\r
//\r
-static EFI_HANDLE NewHandle = NULL;\r
+static EFI_HANDLE mNewHandle = NULL;\r
\r
EFI_STATUS\r
EFIAPI\r
//\r
// Make sure the Pcd Protocol is not already installed in the system\r
//\r
- \r
+\r
ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gPcdProtocolGuid);\r
- \r
+\r
BuildPcdDxeDataBase ();\r
\r
- //\r
- // BugBug Check if PcdDatabase is already installed.\r
- //\r
- \r
Status = gBS->InstallProtocolInterface (\r
- &NewHandle,\r
+ &mNewHandle,\r
&gPcdProtocolGuid,\r
EFI_NATIVE_INTERFACE,\r
&mPcdInstance\r
VOID\r
EFIAPI\r
DxePcdSetSku (\r
- IN SKU_ID SkuId\r
+ IN UINTN SkuId\r
)\r
{\r
- mPcdDatabase->PeiDb.Init.SystemSkuId = SkuId;\r
+ mPcdDatabase->PeiDb.Init.SystemSkuId = (SKU_ID) SkuId;\r
\r
return;\r
}\r
UINT8\r
EFIAPI\r
DxePcdGet8 (\r
- IN PCD_TOKEN_NUMBER TokenNumber\r
+ IN UINTN TokenNumber\r
)\r
{\r
return *((UINT8 *) GetWorker (TokenNumber, sizeof (UINT8)));\r
UINT16\r
EFIAPI\r
DxePcdGet16 (\r
- IN PCD_TOKEN_NUMBER TokenNumber\r
+ IN UINTN TokenNumber\r
)\r
{\r
return ReadUnaligned16 (GetWorker (TokenNumber, sizeof (UINT16)));\r
UINT32\r
EFIAPI\r
DxePcdGet32 (\r
- IN PCD_TOKEN_NUMBER TokenNumber\r
+ IN UINTN TokenNumber\r
)\r
{\r
return ReadUnaligned32 (GetWorker (TokenNumber, sizeof (UINT32)));\r
UINT64\r
EFIAPI\r
DxePcdGet64 (\r
- IN PCD_TOKEN_NUMBER TokenNumber\r
+ IN UINTN TokenNumber\r
)\r
{\r
return ReadUnaligned64(GetWorker (TokenNumber, sizeof (UINT64)));\r
VOID *\r
EFIAPI\r
DxePcdGetPtr (\r
- IN PCD_TOKEN_NUMBER TokenNumber\r
+ IN UINTN TokenNumber\r
)\r
{\r
return GetWorker (TokenNumber, 0);\r
BOOLEAN\r
EFIAPI\r
DxePcdGetBool (\r
- IN PCD_TOKEN_NUMBER TokenNumber\r
+ IN UINTN TokenNumber\r
)\r
{\r
return *((BOOLEAN *) GetWorker (TokenNumber, sizeof (BOOLEAN)));\r
UINTN\r
EFIAPI\r
DxePcdGetSize (\r
- IN PCD_TOKEN_NUMBER TokenNumber\r
+ IN UINTN TokenNumber\r
)\r
{\r
- UINT16 * SizeTable;\r
+ UINTN Size;\r
+ UINT32 *LocalTokenNumberTable;\r
+ BOOLEAN IsPeiDb;\r
+ UINTN MaxSize;\r
+ UINTN TmpTokenNumber;\r
+ //\r
+ // TokenNumber Zero is reserved as PCD_INVALID_TOKEN_NUMBER.\r
+ // We have to decrement TokenNumber by 1 to make it usable\r
+ // as the array index.\r
+ //\r
+ TokenNumber--;\r
\r
- SizeTable = (TokenNumber < PEI_LOCAL_TOKEN_NUMBER) ? mPcdDatabase->PeiDb.Init.SizeTable :\r
- mPcdDatabase->DxeDb.Init.SizeTable;\r
+ //\r
+ // Backup the TokenNumber passed in as GetPtrTypeSize need the original TokenNumber\r
+ // \r
+ TmpTokenNumber = TokenNumber;\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
+ // comparison.\r
+ ASSERT (TokenNumber + 1 < PCD_TOTAL_TOKEN_NUMBER + 1);\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
+ // comparison.\r
+ IsPeiDb = (BOOLEAN) (TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1);\r
+ \r
+ TokenNumber = IsPeiDb ? TokenNumber : \r
+ (TokenNumber - PEI_LOCAL_TOKEN_NUMBER);\r
\r
+ LocalTokenNumberTable = IsPeiDb ? mPcdDatabase->PeiDb.Init.LocalTokenNumberTable \r
+ : mPcdDatabase->DxeDb.Init.LocalTokenNumberTable;\r
\r
- TokenNumber = (TokenNumber < PEI_LOCAL_TOKEN_NUMBER) ? TokenNumber : (TokenNumber - PEI_LOCAL_TOKEN_NUMBER);\r
+ Size = (LocalTokenNumberTable[TokenNumber] & PCD_DATUM_TYPE_ALL_SET) >> PCD_DATUM_TYPE_SHIFT;\r
+\r
+ if (Size == 0) {\r
+ //\r
+ // For pointer type, we need to scan the SIZE_TABLE to get the current size.\r
+ //\r
+ return GetPtrTypeSize (TmpTokenNumber, &MaxSize);\r
+ } else {\r
+ return Size;\r
+ }\r
\r
- return SizeTable[TokenNumber];\r
}\r
\r
\r
EFIAPI\r
DxePcdGet8Ex (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber\r
+ IN UINTN ExTokenNumber\r
)\r
{\r
return *((UINT8 *) ExGetWorker (Guid, ExTokenNumber, sizeof(UINT8)));\r
EFIAPI\r
DxePcdGet16Ex (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber\r
+ IN UINTN ExTokenNumber\r
)\r
{\r
return ReadUnaligned16 (ExGetWorker (Guid, ExTokenNumber, sizeof(UINT16)));\r
EFIAPI\r
DxePcdGet32Ex (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber\r
+ IN UINTN ExTokenNumber\r
)\r
{\r
return ReadUnaligned32 (ExGetWorker (Guid, ExTokenNumber, sizeof(UINT32)));\r
EFIAPI\r
DxePcdGet64Ex (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber\r
+ IN UINTN ExTokenNumber\r
)\r
{\r
return ReadUnaligned64 (ExGetWorker (Guid, ExTokenNumber, sizeof(UINT64)));\r
EFIAPI\r
DxePcdGetPtrEx (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber\r
+ IN UINTN ExTokenNumber\r
)\r
{\r
- return ExGetWorker (Guid, ExTokenNumber, 0);\r
+ return ExGetWorker (Guid, ExTokenNumber, 0);\r
}\r
\r
\r
EFIAPI\r
DxePcdGetBoolEx (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber\r
+ IN UINTN ExTokenNumber\r
)\r
{\r
return *((BOOLEAN *) ExGetWorker (Guid, ExTokenNumber, sizeof(BOOLEAN)));\r
EFIAPI\r
DxePcdGetSizeEx (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber\r
+ IN UINTN ExTokenNumber\r
)\r
{\r
- return DxePcdGetSize(GetExPcdTokenNumber (Guid, ExTokenNumber));\r
+ return DxePcdGetSize(GetExPcdTokenNumber (Guid, (UINT32) ExTokenNumber));\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
DxePcdSet8 (\r
- IN PCD_TOKEN_NUMBER TokenNumber,\r
+ IN UINTN TokenNumber,\r
IN UINT8 Value\r
)\r
{\r
- return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
+ return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
DxePcdSet16 (\r
- IN PCD_TOKEN_NUMBER TokenNumber,\r
+ IN UINTN TokenNumber,\r
IN UINT16 Value\r
)\r
{\r
- return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
+ return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
DxePcdSet32 (\r
- IN PCD_TOKEN_NUMBER TokenNumber,\r
+ IN UINTN TokenNumber,\r
IN UINT32 Value\r
)\r
{\r
- return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
+ return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
DxePcdSet64 (\r
- IN PCD_TOKEN_NUMBER TokenNumber,\r
+ IN UINTN TokenNumber,\r
IN UINT64 Value\r
)\r
{\r
- return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
+ return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
DxePcdSetPtr (\r
- IN PCD_TOKEN_NUMBER TokenNumber,\r
- IN UINTN SizeOfBuffer,\r
- IN VOID *Buffer\r
+ IN UINTN TokenNumber,\r
+ IN OUT UINTN *SizeOfBuffer,\r
+ IN VOID *Buffer\r
)\r
{\r
return SetWorker (TokenNumber, Buffer, SizeOfBuffer, TRUE);\r
EFI_STATUS\r
EFIAPI\r
DxePcdSetBool (\r
- IN PCD_TOKEN_NUMBER TokenNumber,\r
+ IN UINTN TokenNumber,\r
IN BOOLEAN Value\r
)\r
{\r
- return SetWorker (TokenNumber, &Value, sizeof (Value), FALSE);\r
+ return SetValueWorker (TokenNumber, &Value, sizeof (Value));\r
}\r
\r
\r
EFIAPI\r
DxePcdSet8Ex (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber,\r
+ IN UINTN ExTokenNumber,\r
IN UINT8 Value\r
)\r
{\r
- return ExSetWorker(\r
- ExTokenNumber, \r
- Guid,\r
- &Value, \r
- sizeof (Value), \r
- FALSE\r
- );\r
+ return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r
}\r
\r
\r
EFIAPI\r
DxePcdSet16Ex (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber,\r
+ IN UINTN ExTokenNumber,\r
IN UINT16 Value\r
)\r
{\r
- return ExSetWorker(\r
- ExTokenNumber, \r
- Guid,\r
- &Value, \r
- sizeof (Value), \r
- FALSE\r
- );\r
+ return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r
}\r
\r
\r
EFIAPI\r
DxePcdSet32Ex (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber,\r
+ IN UINTN ExTokenNumber,\r
IN UINT32 Value\r
)\r
{\r
- return ExSetWorker(\r
- ExTokenNumber, \r
- Guid,\r
- &Value, \r
- sizeof (Value), \r
- FALSE\r
- );\r
+ return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r
}\r
\r
\r
EFIAPI\r
DxePcdSet64Ex (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber,\r
+ IN UINTN ExTokenNumber,\r
IN UINT64 Value\r
)\r
{\r
- return ExSetWorker(\r
- ExTokenNumber, \r
- Guid,\r
- &Value, \r
- sizeof (Value), \r
- FALSE\r
- );\r
+ return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
DxePcdSetPtrEx (\r
- IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber,\r
- IN UINTN SizeOfBuffer,\r
- IN VOID *Buffer\r
+ IN CONST EFI_GUID *Guid,\r
+ IN UINTN ExTokenNumber,\r
+ IN OUT UINTN *SizeOfBuffer,\r
+ IN VOID *Buffer\r
)\r
{\r
- return ExSetWorker(\r
- ExTokenNumber, \r
- Guid,\r
- Buffer, \r
- SizeOfBuffer, \r
- TRUE\r
- );\r
+ return ExSetWorker(ExTokenNumber, Guid, Buffer, SizeOfBuffer, TRUE);\r
}\r
\r
\r
EFIAPI\r
DxePcdSetBoolEx (\r
IN CONST EFI_GUID *Guid,\r
- IN PCD_TOKEN_NUMBER ExTokenNumber,\r
+ IN UINTN ExTokenNumber,\r
IN BOOLEAN Value\r
)\r
{\r
- return ExSetWorker(\r
- ExTokenNumber, \r
- Guid,\r
- &Value, \r
- sizeof (Value), \r
- TRUE\r
- );\r
+ return ExSetValueWorker (ExTokenNumber, Guid, &Value, sizeof (Value));\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
DxeRegisterCallBackOnSet (\r
- IN PCD_TOKEN_NUMBER TokenNumber,\r
IN CONST EFI_GUID *Guid, OPTIONAL\r
+ IN UINTN TokenNumber,\r
IN PCD_PROTOCOL_CALLBACK CallBackFunction\r
)\r
{\r
+ EFI_STATUS Status;\r
+ \r
ASSERT (CallBackFunction != NULL);\r
\r
- return DxeRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);\r
+ //\r
+ // Aquire lock to prevent reentrance from TPL_CALLBACK level\r
+ //\r
+ EfiAcquireLock (&mPcdDatabaseLock);\r
+\r
+ Status = DxeRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);\r
+\r
+ EfiReleaseLock (&mPcdDatabaseLock);\r
+ \r
+ return Status;\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
DxeUnRegisterCallBackOnSet (\r
- IN PCD_TOKEN_NUMBER TokenNumber,\r
IN CONST EFI_GUID *Guid, OPTIONAL\r
+ IN UINTN TokenNumber,\r
IN PCD_PROTOCOL_CALLBACK CallBackFunction\r
)\r
{\r
+ EFI_STATUS Status;\r
+ \r
ASSERT (CallBackFunction != NULL);\r
+\r
+ //\r
+ // Aquire lock to prevent reentrance from TPL_CALLBACK level\r
+ //\r
+ EfiAcquireLock (&mPcdDatabaseLock);\r
\r
- return DxeRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);\r
+ Status = DxeUnRegisterCallBackWorker (TokenNumber, Guid, CallBackFunction);\r
+\r
+ EfiReleaseLock (&mPcdDatabaseLock);\r
+ \r
+ return Status;\r
}\r
\r
\r
EFIAPI\r
DxePcdGetNextToken (\r
IN CONST EFI_GUID *Guid, OPTIONAL\r
- IN OUT PCD_TOKEN_NUMBER *TokenNumber\r
+ IN OUT UINTN *TokenNumber\r
)\r
{\r
- PCD_TOKEN_NUMBER ExTokenNumber;\r
- \r
+ EFI_STATUS Status;\r
+\r
+ if (!FeaturePcdGet (PcdDxePcdDatabaseTraverseEnabled)) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ Status = EFI_NOT_FOUND;\r
//\r
// Scan the local token space\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
+ // comparison.\r
+ if (((*TokenNumber + 1 > PEI_NEX_TOKEN_NUMBER + 1) && (*TokenNumber + 1 < PEI_LOCAL_TOKEN_NUMBER + 1)) ||\r
+ ((*TokenNumber + 1 > (PEI_LOCAL_TOKEN_NUMBER + DXE_NEX_TOKEN_NUMBER + 1)))) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+ \r
(*TokenNumber)++;\r
- if (*TokenNumber == PCD_INVALID_TOKEN_NUMBER) {\r
- return EFI_SUCCESS;\r
- } else {\r
- if (*TokenNumber >= PEI_NEX_TOKEN_NUMBER &&\r
- *TokenNumber < PEI_LOCAL_TOKEN_NUMBER) {\r
- //\r
- // The first Non-Ex type Token Number for DXE PCD \r
- // database is PEI_LOCAL_TOKEN_NUMBER\r
- //\r
- *TokenNumber = PEI_LOCAL_TOKEN_NUMBER;\r
- return EFI_SUCCESS;\r
- } else if (*TokenNumber >= DXE_NEX_TOKEN_NUMBER + PEI_LOCAL_TOKEN_NUMBER) {\r
- *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r
- return EFI_SUCCESS;\r
- }\r
+ if ((*TokenNumber + 1 > PEI_NEX_TOKEN_NUMBER + 1) &&\r
+ (*TokenNumber <= PEI_LOCAL_TOKEN_NUMBER)) {\r
+ //\r
+ // The first Non-Ex type Token Number for DXE PCD \r
+ // database is PEI_LOCAL_TOKEN_NUMBER\r
+ //\r
+ *TokenNumber = PEI_LOCAL_TOKEN_NUMBER;\r
+ } else if (*TokenNumber + 1 > DXE_NEX_TOKEN_NUMBER + PEI_LOCAL_TOKEN_NUMBER + 1) {\r
+ *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r
}\r
+ return EFI_SUCCESS;\r
}\r
\r
- if (PEI_EXMAP_TABLE_EMPTY && PEI_EXMAP_TABLE_EMPTY) {\r
- *TokenNumber = (UINTN) PCD_INVALID_TOKEN_NUMBER;\r
+ if (PEI_EXMAP_TABLE_EMPTY && DXE_EXMAP_TABLE_EMPTY) {\r
+ *TokenNumber = PCD_INVALID_TOKEN_NUMBER;\r
return EFI_NOT_FOUND;\r
}\r
\r
- ExTokenNumber = *TokenNumber;\r
if (!PEI_EXMAP_TABLE_EMPTY) {\r
- ExTokenNumber = ExGetNextTokeNumber (\r
+ Status = ExGetNextTokeNumber (\r
Guid,\r
- ExTokenNumber,\r
+ TokenNumber,\r
mPcdDatabase->PeiDb.Init.GuidTable,\r
sizeof(mPcdDatabase->PeiDb.Init.GuidTable),\r
mPcdDatabase->PeiDb.Init.ExMapTable,\r
);\r
}\r
\r
+ if (Status == EFI_SUCCESS) {\r
+ return Status;\r
+ }\r
+\r
if (!DXE_EXMAP_TABLE_EMPTY) {\r
- ExTokenNumber = ExGetNextTokeNumber (\r
+ Status = ExGetNextTokeNumber (\r
Guid,\r
- ExTokenNumber,\r
- mPcdDatabase->PeiDb.Init.GuidTable,\r
- sizeof(mPcdDatabase->PeiDb.Init.GuidTable),\r
- mPcdDatabase->PeiDb.Init.ExMapTable,\r
- sizeof(mPcdDatabase->PeiDb.Init.ExMapTable)\r
+ TokenNumber,\r
+ mPcdDatabase->DxeDb.Init.GuidTable,\r
+ sizeof(mPcdDatabase->DxeDb.Init.GuidTable),\r
+ mPcdDatabase->DxeDb.Init.ExMapTable,\r
+ sizeof(mPcdDatabase->DxeDb.Init.ExMapTable)\r
);\r
}\r
\r
- *TokenNumber = ExTokenNumber;\r
+ return Status;\r
+}\r
\r
- return EFI_SUCCESS;\r
+\r
+EFI_GUID **\r
+GetDistinctTokenSpace (\r
+ IN OUT UINTN *ExMapTableSize,\r
+ IN DYNAMICEX_MAPPING *ExMapTable,\r
+ IN EFI_GUID *GuidTable\r
+ )\r
+{\r
+ EFI_GUID **DistinctTokenSpace;\r
+ UINTN OldGuidIndex;\r
+ UINTN TsIdx;\r
+ UINTN Idx;\r
+\r
+\r
+ DistinctTokenSpace = AllocateZeroPool (*ExMapTableSize * sizeof (EFI_GUID *));\r
+ ASSERT (DistinctTokenSpace != NULL);\r
+\r
+ TsIdx = 0;\r
+ OldGuidIndex = ExMapTable[0].ExGuidIndex;\r
+ DistinctTokenSpace[TsIdx] = &GuidTable[OldGuidIndex];\r
+ for (Idx = 1; Idx < *ExMapTableSize; Idx++) {\r
+ if (ExMapTable[Idx].ExGuidIndex != OldGuidIndex) {\r
+ OldGuidIndex = ExMapTable[Idx].ExGuidIndex;\r
+ DistinctTokenSpace[++TsIdx] = &GuidTable[OldGuidIndex];\r
+ }\r
+ }\r
+\r
+ //\r
+ // The total number of Distinct Token Space\r
+ // is TsIdx + 1 because we use TsIdx as a index\r
+ // to the DistinctTokenSpace[]\r
+ //\r
+ *ExMapTableSize = TsIdx + 1;\r
+ return DistinctTokenSpace;\r
+ \r
}\r
+ \r
+//\r
+// Just pre-allocate a memory buffer that is big enough to\r
+// host all distinct TokenSpace guid in both\r
+// PEI ExMap and DXE ExMap.\r
+//\r
+STATIC EFI_GUID *TmpTokenSpaceBuffer[PEI_EXMAPPING_TABLE_SIZE + DXE_EXMAPPING_TABLE_SIZE] = { 0 };\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+DxePcdGetNextTokenSpace (\r
+ IN OUT CONST EFI_GUID **Guid\r
+ )\r
+{\r
+ UINTN Idx;\r
+ UINTN Idx2;\r
+ UINTN Idx3;\r
+ UINTN PeiTokenSpaceTableSize;\r
+ UINTN DxeTokenSpaceTableSize;\r
+ EFI_GUID **PeiTokenSpaceTable;\r
+ EFI_GUID **DxeTokenSpaceTable;\r
+ BOOLEAN Match;\r
+\r
+ if (!FeaturePcdGet (PcdDxePcdDatabaseTraverseEnabled)) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ ASSERT (Guid != NULL);\r
+ \r
+ if (PEI_EXMAP_TABLE_EMPTY && DXE_EXMAP_TABLE_EMPTY) {\r
+ if (*Guid != NULL) {\r
+ return EFI_NOT_FOUND;\r
+ } else {\r
+ return EFI_SUCCESS;\r
+ }\r
+ }\r
+ \r
+ \r
+ if (TmpTokenSpaceBuffer[0] == NULL) {\r
+ PeiTokenSpaceTableSize = 0;\r
+\r
+ if (!PEI_EXMAP_TABLE_EMPTY) {\r
+ PeiTokenSpaceTableSize = PEI_EXMAPPING_TABLE_SIZE;\r
+ PeiTokenSpaceTable = GetDistinctTokenSpace (&PeiTokenSpaceTableSize,\r
+ mPcdDatabase->PeiDb.Init.ExMapTable,\r
+ mPcdDatabase->PeiDb.Init.GuidTable\r
+ );\r
+ CopyMem (TmpTokenSpaceBuffer, PeiTokenSpaceTable, sizeof (EFI_GUID*) * PeiTokenSpaceTableSize);\r
+ }\r
+\r
+ if (!DXE_EXMAP_TABLE_EMPTY) {\r
+ DxeTokenSpaceTableSize = DXE_EXMAPPING_TABLE_SIZE;\r
+ DxeTokenSpaceTable = GetDistinctTokenSpace (&DxeTokenSpaceTableSize,\r
+ mPcdDatabase->DxeDb.Init.ExMapTable,\r
+ mPcdDatabase->DxeDb.Init.GuidTable\r
+ );\r
+\r
+ //\r
+ // Make sure EFI_GUID in DxeTokenSpaceTable does not exist in PeiTokenSpaceTable\r
+ //\r
+ for (Idx2 = 0, Idx3 = PeiTokenSpaceTableSize; Idx2 < DxeTokenSpaceTableSize; Idx2++) {\r
+ Match = FALSE;\r
+ for (Idx = 0; Idx < PeiTokenSpaceTableSize; Idx++) {\r
+ if (CompareGuid (TmpTokenSpaceBuffer[Idx], DxeTokenSpaceTable[Idx2])) {\r
+ Match = TRUE;\r
+ break;\r
+ }\r
+ }\r
+ if (!Match) {\r
+ TmpTokenSpaceBuffer[Idx3++] = DxeTokenSpaceTable[Idx2];\r
+ }\r
+ }\r
+ }\r
+ }\r
+\r
+ if (*Guid == NULL) {\r
+ *Guid = TmpTokenSpaceBuffer[0];\r
+ return EFI_SUCCESS;\r
+ }\r
+ \r
+ for (Idx = 0; Idx < (PEI_EXMAPPING_TABLE_SIZE + DXE_EXMAPPING_TABLE_SIZE); Idx++) {\r
+ if(CompareGuid (*Guid, TmpTokenSpaceBuffer[Idx])) {\r
+ Idx++;\r
+ *Guid = TmpTokenSpaceBuffer[Idx];\r
+ return EFI_SUCCESS;\r
+ }\r
+ }\r
+\r
+ return EFI_NOT_FOUND;\r
+\r
+}\r
+\r
\r
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