Fix the issues that StatusCode can't work when PcdStatusCodeUseMemory is set to TRUE.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10630 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 33 insertions, 60 deletions

diff --git a/MdeModulePkg/Universal/StatusCodeHandler/Pei/MemoryStausCodeWorker.c b/MdeModulePkg/Universal/StatusCodeHandler/Pei/MemoryStausCodeWorker.c
index 7ae314d..bdf1d27 100644
--- a/MdeModulePkg/Universal/StatusCodeHandler/Pei/MemoryStausCodeWorker.c
+++ b/MdeModulePkg/Universal/StatusCodeHandler/Pei/MemoryStausCodeWorker.c
@@ -15,19 +15,19 @@
 #include "StatusCodeHandlerPei.h"

 

 /**

-  Worker function to create one memory status code GUID'ed HOB,

-  using PacketIndex to identify the packet.

-

-  @param   PacketIndex    Index of records packet.

+  Create the first memory status code GUID'ed HOB as initialization for memory status code worker.

 

-  @return  Pointer to the memory status code packet.

+  @retval EFI_SUCCESS  The GUID'ed HOB is created successfully.

 

 **/

-MEMORY_STATUSCODE_PACKET_HEADER *

-CreateMemoryStatusCodePacket (

-  UINT16 PacketIndex

+EFI_STATUS

+MemoryStatusCodeInitializeWorker (

+  VOID

   )

 {

+  //

+  // Create memory status code GUID'ed HOB.

+  //

   MEMORY_STATUSCODE_PACKET_HEADER *PacketHeader;

 

   //

@@ -40,28 +40,9 @@ CreateMemoryStatusCodePacket (
   ASSERT (PacketHeader != NULL);

 

   PacketHeader->MaxRecordsNumber = (PcdGet16 (PcdStatusCodeMemorySize) * 1024) / sizeof (MEMORY_STATUSCODE_RECORD);

-  PacketHeader->PacketIndex      = PacketIndex;

+  PacketHeader->PacketIndex      = 0;

   PacketHeader->RecordIndex      = 0;

 

-  return PacketHeader;

-}

-

-/**

-  Create the first memory status code GUID'ed HOB as initialization for memory status code worker.

-

-  @retval EFI_SUCCESS  The GUID'ed HOB is created successfully.

-

-**/

-EFI_STATUS

-MemoryStatusCodeInitializeWorker (

-  VOID

-  )

-{

-  //

-  // Create first memory status code GUID'ed HOB.

-  //

-  CreateMemoryStatusCodePacket (0);

-

   return EFI_SUCCESS;

 }

 

@@ -107,48 +88,40 @@ MemoryStatusCodeReportWorker (
   EFI_PEI_HOB_POINTERS              Hob;

   MEMORY_STATUSCODE_PACKET_HEADER   *PacketHeader;

   MEMORY_STATUSCODE_RECORD          *Record;

-  UINT16                            PacketIndex;

-

-  Record      = NULL;

-  PacketIndex = 0;

 

   //

-  // Journal GUID'ed HOBs to find empty record entry. if found, then save status code in it.

-  // otherwise, create a new GUID'ed HOB.

+  // Find GUID'ed HOBs to locate current record buffer. 

   //

   Hob.Raw = GetFirstGuidHob (&gMemoryStatusCodeRecordGuid);

-  while (Hob.Raw != NULL) {

-    PacketHeader = (MEMORY_STATUSCODE_PACKET_HEADER *) GET_GUID_HOB_DATA (Hob.Guid);

+  ASSERT (Hob.Raw != NULL);

 

-    //

-    // Check whether pccket is full or not.

-    //

-    if (PacketHeader->RecordIndex < PacketHeader->MaxRecordsNumber) {

-      Record = (MEMORY_STATUSCODE_RECORD *) (PacketHeader + 1);

-      Record = &Record[PacketHeader->RecordIndex++];

-      break;

-    }

-    //

-    // Cache number of found packet in PacketIndex.

-    //

-    PacketIndex++;

+  PacketHeader = (MEMORY_STATUSCODE_PACKET_HEADER *) GET_GUID_HOB_DATA (Hob.Guid);

+  Record = (MEMORY_STATUSCODE_RECORD *) (PacketHeader + 1);

+  Record = &Record[PacketHeader->RecordIndex++];

 

-    Hob.Raw = GetNextGuidHob (&gMemoryStatusCodeRecordGuid, Hob.Raw);

-  }

+  //

+  // Save status code.

+  //

+  Record->CodeType = CodeType;

+  Record->Instance = Instance;

+  Record->Value    = Value;

 

-  if (Record == NULL) {

+  //

+  // If record index equals to max record number, then wrap around record index to zero.

+  //

+  // The reader of status code should compare the number of records with max records number,

+  // If it is equal to or larger than the max number, then the wrap-around had happened,

+  // so the first record is pointed by record index.

+  // If it is less then max number, index of the first record is zero.

+  //

+  if (PacketHeader->RecordIndex == PacketHeader->MaxRecordsNumber) {

     //

-    // No available entry found, so create new packet.

+    // Wrap around record index.

     //

-    PacketHeader = CreateMemoryStatusCodePacket (PacketIndex);

-

-    Record = (MEMORY_STATUSCODE_RECORD *) (PacketHeader + 1);

-    Record = &Record[PacketHeader->RecordIndex++];

+    PacketHeader->RecordIndex = 0;

+    PacketHeader->PacketIndex ++;

   }

 

-  Record->CodeType = CodeType;

-  Record->Instance = Instance;

-  Record->Value    = Value;

-

   return EFI_SUCCESS;

 }

+