1) remove some dead code from WinNtBusDriver.c

2) change PCD_INVALID_TOKEN_NUMBER to 0 as stipulated in MWG spec and PCD spec.
3) support returning a Default Value when a read failure by variable service for PCD entry with Variable Enabled.
4) Remove a lot of unreferenced JAVA import from CollectPCDAction.java, PCDAutoGenAction.java, MemoryDatabaseManager.java, Token.java and UsageInstance.java.
5) Opimized to merge elements in all tables in PCD database for make the code compact.
6) Did a tighter check on how dynamic PCD entry is referenced in each module.
7) Update the PCD driver/PEIM and PCD database generation verion to 2.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@605 6f19259b-4bc3-4df7-8a09-765794883524

3 files changed, 67 insertions, 21 deletions

diff --git a/EdkModulePkg/Universal/PCD/Pei/Pcd.c b/EdkModulePkg/Universal/PCD/Pei/Pcd.c
index b41d3ed09b..34af220f66 100644
--- a/EdkModulePkg/Universal/PCD/Pei/Pcd.c
+++ b/EdkModulePkg/Universal/PCD/Pei/Pcd.c
@@ -169,6 +169,13 @@ PeiPcdGetSize (
   IN UINTN             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.

+  //

+  TokenNumber--;

+

   ASSERT (TokenNumber < PEI_LOCAL_TOKEN_NUMBER);

 

   return GetPcdDatabase()->Init.SizeTable[TokenNumber];

@@ -559,10 +566,10 @@ PeiPcdGetNextToken (
   return EFI_SUCCESS;

 }

 

-EFI_GUID *

+EFI_STATUS

 EFIAPI

 PeiPcdGetNextTokenSpaceGuid (

-  IN CONST EFI_GUID               *Guid

+  IN OUT CONST EFI_GUID               **Guid

   )

 {

   UINTN               GuidTableIdx;

@@ -572,9 +579,17 @@ PeiPcdGetNextTokenSpaceGuid (
   UINTN               i;

   BOOLEAN             Found;

 

-  if (PEI_EXMAP_TABLE_EMPTY) {

-    return NULL;

-  }

+   if (*Guid == NULL) {

+    if (PEI_EXMAP_TABLE_EMPTY) {

+      return EFI_SUCCESS;

+    } else {

+      //

+      // return the first Token Space Guid.

+      //

+      *Guid = &PeiPcdDb->Init.GuidTable[ExMapTable[0].ExGuidIndex];

+      return EFI_SUCCESS;

+    }

+   }

 

   //

   // Assume PCD Database AutoGen tool is sorting the ExMap based on the following order

@@ -583,10 +598,10 @@ PeiPcdGetNextTokenSpaceGuid (
   //

   PeiPcdDb = GetPcdDatabase ();

 

-  MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), Guid);

+  MatchGuid = ScanGuid (PeiPcdDb->Init.GuidTable, sizeof(PeiPcdDb->Init.GuidTable), *Guid);

 

   if (MatchGuid == NULL) {

-    return NULL;

+    return EFI_NOT_FOUND;

   }

   

   GuidTableIdx = MatchGuid - PeiPcdDb->Init.GuidTable;

@@ -604,16 +619,13 @@ PeiPcdGetNextTokenSpaceGuid (
   if (Found) {

     for ( ; i < PEI_EXMAPPING_TABLE_SIZE; i++ ) {

       if (ExMapTable[i].ExGuidIndex != GuidTableIdx ) {

-        if (i < PEI_EXMAPPING_TABLE_SIZE) {

-          return &PeiPcdDb->Init.GuidTable[ExMapTable[i].ExGuidIndex];

-        } else {

-          return NULL;

-        }

+        *Guid = &PeiPcdDb->Init.GuidTable[ExMapTable[i].ExGuidIndex];

+        return EFI_SUCCESS;

       }

     }

   }

 

-  return NULL;

+  return EFI_NOT_FOUND;

 

 }

 

diff --git a/EdkModulePkg/Universal/PCD/Pei/Service.c b/EdkModulePkg/Universal/PCD/Pei/Service.c
index 01fe0151bf..8d03d9c2b1 100644
--- a/EdkModulePkg/Universal/PCD/Pei/Service.c
+++ b/EdkModulePkg/Universal/PCD/Pei/Service.c
@@ -46,12 +46,27 @@ PeiRegisterCallBackWorker (
 

   if (Guid == NULL) {

     TokenNumber = ExTokenNumber;

+

+    //

+    // 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--;

     ASSERT (TokenNumber < PEI_NEX_TOKEN_NUMBER);

   } else {

     TokenNumber = GetExPcdTokenNumber (Guid, ExTokenNumber);

+

+    //

+    // 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--;

     ASSERT (TokenNumber < PEI_LOCAL_TOKEN_NUMBER);

   }

 

+

   LocalTokenNumber = GetPcdDatabase()->Init.LocalTokenNumberTable[TokenNumber];

 

   ASSERT ((LocalTokenNumber & PCD_TYPE_HII) == 0);

@@ -248,6 +263,13 @@ InvokeCallbackOnSet (
   PCD_PPI_CALLBACK    *CallbackTable;

   UINTN               Idx;

 

+  //

+  // 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--;

+  

   if (Guid == NULL)

     ASSERT (TokenNumber < PEI_LOCAL_TOKEN_NUMBER);

 

@@ -287,6 +309,13 @@ SetWorker (
   UINTN               Offset;

   VOID                *InternalData;

 

+  //

+  // 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--;

+

   ASSERT (TokenNumber < PEI_LOCAL_TOKEN_NUMBER);

     

   PeiPcdDb = GetPcdDatabase ();

@@ -305,7 +334,7 @@ SetWorker (
   // type PCD entry in ExSetWorker.

   //

   if (TokenNumber < PEI_NEX_TOKEN_NUMBER) {

-    InvokeCallbackOnSet (0, NULL, TokenNumber, Data, Size);

+    InvokeCallbackOnSet (0, NULL, TokenNumber + 1, Data, Size);

   }

 

   if ((LocalTokenNumber & PCD_TYPE_SKU_ENABLED) == PCD_TYPE_SKU_ENABLED) {

@@ -425,9 +454,16 @@ GetWorker (
   UINT32              LocalTokenNumber;

   UINTN               Size;

 

+  //

+  // 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--;

+

   ASSERT (TokenNumber < PEI_LOCAL_TOKEN_NUMBER);

 

-  Size = PeiPcdGetSize(TokenNumber);

+  Size = PeiPcdGetSize(TokenNumber + 1);

   

   ASSERT (GetSize == Size || GetSize == 0);

 

@@ -464,16 +500,14 @@ GetWorker (
         return (VOID *) ((UINT8 *) Data + VariableHead->Offset);

       } else {

         //

-        // BugBug: Need to support default value. The current implementation

-        // will return a memory buffer with ALL ZERO.

-        // 

-        return AllocateZeroPool (Size);

+        // Return the default value specified by Platform Integrator 

+        //

+        return (VOID *) ((UINT8 *) PeiPcdDb + VariableHead->DefaultValueOffset);

       }

     }

 

     case PCD_TYPE_DATA:

       return (VOID *) ((UINT8 *)PeiPcdDb + Offset);

-      break;

 

     case PCD_TYPE_STRING:

       StringTableIdx = (UINT16) *((UINT8 *) PeiPcdDb + Offset);

diff --git a/EdkModulePkg/Universal/PCD/Pei/Service.h b/EdkModulePkg/Universal/PCD/Pei/Service.h
index e62d0307a7..563e82ae22 100644
--- a/EdkModulePkg/Universal/PCD/Pei/Service.h
+++ b/EdkModulePkg/Universal/PCD/Pei/Service.h
@@ -22,7 +22,7 @@ Module Name: Service.h
 // Please make sure the PCD Serivce PEIM Version is consistent with

 // the version of PCD Database generation tool

 //

-#define PCD_PEI_SERVICE_DRIVER_VERSION      1

+#define PCD_PEI_SERVICE_DRIVER_VERSION      2

 

 //

 // PCD_PEI_DATABASE_GENTOOL_VERSION is defined in Autogen.h