6 files changed, 22 insertions, 7 deletions
diff --git a/EdkModulePkg/EdkModulePkg.spd b/EdkModulePkg/EdkModulePkg.spd
index 37a1a1f..86d33e6 100644
--- a/EdkModulePkg/EdkModulePkg.spd
+++ b/EdkModulePkg/EdkModulePkg.spd
@@ -988,6 +988,15 @@
       <HelpText>kbytes size of runtime memory.</HelpText>
     </PcdEntry>
     <PcdEntry>
+      <C_Name>PcdMaxPeiPerformanceLogEntries</C_Name>
+      <Token>0x0001002f</Token>
+      <TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <DatumType>UINT8</DatumType>
+      <ValidUsage>FIXED_AT_BUILD PATCHABLE_IN_MODULE</ValidUsage>
+      <DefaultValue>28</DefaultValue>
+      <HelpText>Maximun number of performance log entries during PEI phase.</HelpText>
+    </PcdEntry>
+    <PcdEntry>
       <C_Name>PcdFlashFvBaseArray</C_Name>
       <Token>0x31000001</Token>
       <TokenSpaceGuidCName>gEfiGenericPlatformTokenSpaceGuid</TokenSpaceGuidCName>
diff --git a/EdkModulePkg/Include/Guid/PeiPerformanceHob.h b/EdkModulePkg/Include/Guid/PeiPerformanceHob.h
index 33a2dc9..c3bfc1f 100644
--- a/EdkModulePkg/Include/Guid/PeiPerformanceHob.h
+++ b/EdkModulePkg/Include/Guid/PeiPerformanceHob.h
@@ -33,10 +33,6 @@ Abstract:
 //
 #define PEI_PERFORMANCE_STRING_SIZE     8
 #define PEI_PERFORMANCE_STRING_LENGTH   (PEI_PERFORMANCE_STRING_SIZE - 1)
-//
-// Bugbug: This macro will be replaced by a binary patchable PCD entry in EdkModulePkg
-//
-#define MAX_PEI_PERFORMANCE_LOG_ENTRIES 28
 
 typedef struct {
   EFI_PHYSICAL_ADDRESS  Handle;
diff --git a/EdkModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c b/EdkModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
index 64c7454..268a6a0 100644
--- a/EdkModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
+++ b/EdkModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
@@ -438,7 +438,7 @@ DxeCorePerformanceLibConstructor (
                   );
   ASSERT_EFI_ERROR (Status);
 
-  mMaxGaugeRecords = INIT_DXE_GAUGE_DATA_ENTRIES + MAX_PEI_PERFORMANCE_LOG_ENTRIES;
+  mMaxGaugeRecords = INIT_DXE_GAUGE_DATA_ENTRIES + PcdGet8 (PcdMaxPeiPerformanceLogEntries);
 
   mGaugeData = AllocateZeroPool (sizeof (GAUGE_DATA_HEADER) + (sizeof (GAUGE_DATA_ENTRY) * mMaxGaugeRecords));
   ASSERT (mGaugeData != NULL);
diff --git a/EdkModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.msa b/EdkModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.msa
index f00b9da..ab6edcb 100644
--- a/EdkModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.msa
+++ b/EdkModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.msa
@@ -91,5 +91,10 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
       <HelpText>The bitmask of flags that specify the enable/disable of
                 Performance Measurement.</HelpText>
     </PcdEntry>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdMaxPeiPerformanceLogEntries</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>Maximun number of performance log entries during PEI phase.</HelpText>
+    </PcdEntry>
   </PcdCoded>
 </ModuleSurfaceArea>
 \ No newline at end of file
diff --git a/EdkModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.c b/EdkModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.c
index b97849f..dcb360c 100644
--- a/EdkModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.c
+++ b/EdkModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.c
@@ -57,7 +57,7 @@ InternalGetPerformanceHobLog (
     // PEI Performance HOB was not found, then build one.
     //
     PeiPerformanceLogSize = sizeof (PEI_PERFORMANCE_LOG_HEADER) + 
-                            sizeof (PEI_PERFORMANCE_LOG_ENTRY) * MAX_PEI_PERFORMANCE_LOG_ENTRIES;
+                            sizeof (PEI_PERFORMANCE_LOG_ENTRY) * PcdGet8 (PcdMaxPeiPerformanceLogEntries);
     PeiPerformanceLog     = BuildGuidHob (&gPeiPerformanceHobGuid, PeiPerformanceLogSize);
     PeiPerformanceLog     = ZeroMem (PeiPerformanceLog, PeiPerformanceLogSize);
   }
@@ -152,7 +152,7 @@ StartPerformanceMeasurement (
 
   PeiPerformanceLog = InternalGetPerformanceHobLog ();
   
-  if (PeiPerformanceLog->NumberOfEntries >= MAX_PEI_PERFORMANCE_LOG_ENTRIES) {
+  if (PeiPerformanceLog->NumberOfEntries >= PcdGet8 (PcdMaxPeiPerformanceLogEntries)) {
     return RETURN_OUT_OF_RESOURCES;
   }
   Index                       = PeiPerformanceLog->NumberOfEntries++;
diff --git a/EdkModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.msa b/EdkModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.msa
index 834bd34..90126ac 100644
--- a/EdkModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.msa
+++ b/EdkModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.msa
@@ -77,5 +77,10 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
       <HelpText>The bitmask of flags that specify the enable/disable of
                 Performance Measurement.</HelpText>
     </PcdEntry>
+    <PcdEntry PcdItemType="DYNAMIC">
+      <C_Name>PcdMaxPeiPerformanceLogEntries</C_Name>
+      <TokenSpaceGuidCName>gEfiEdkModulePkgTokenSpaceGuid</TokenSpaceGuidCName>
+      <HelpText>Maximun number of performance log entries during PEI phase.</HelpText>
+    </PcdEntry>
   </PcdCoded>
 </ModuleSurfaceArea>
 \ No newline at end of file