REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3993
FSPI_UPD is required only When platforms implemented FSP_I component.
Updated the scripts to allow FSPI_UPD not present scenario.
Also fixed FSP_GLOBAL_DATA structure alignment issue and unnecessary
non-backward compatibility change in previous FSP_I patch.

Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Signed-off-by: Chasel Chiu <chasel.chiu@intel.com>
---
 IntelFsp2Pkg/Include/FspGlobalData.h |  5 +++--
 IntelFsp2Pkg/Tools/GenCfgOpt.py      | 14 ++++++++++----
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/IntelFsp2Pkg/Include/FspGlobalData.h b/IntelFsp2Pkg/Include/FspGlobalData.h
index cf94f7b6a5..d1b3dfbfc4 100644
--- a/IntelFsp2Pkg/Include/FspGlobalData.h
+++ b/IntelFsp2Pkg/Include/FspGlobalData.h
@@ -76,15 +76,15 @@ typedef struct  {
   VOID               *TempRamInitUpdPtr;
   VOID               *MemoryInitUpdPtr;
   VOID               *SiliconInitUpdPtr;
-  VOID               *SmmInitUpdPtr;
   ///
-  /// IA32: Offset 0x68; X64: Offset 0x98
+  /// IA32: Offset 0x64; X64: Offset 0x90
   /// To store function parameters pointer
   /// so it can be retrieved after stack switched.
   ///
   VOID               *FunctionParameterPtr;
   FSP_INFO_HEADER    *FspInfoHeader;
   VOID               *UpdDataPtr;
+  VOID               *SmmInitUpdPtr;
   UINTN              Reserved5;
   ///
   /// End of UINTN and pointer section
@@ -94,6 +94,7 @@ typedef struct  {
   UINT16             PerfLen;
   UINT16             Reserved7;
   UINT32             PerfIdx;
+  UINT32             Reserved8;
   UINT64             PerfData[32];
 } FSP_GLOBAL_DATA;
 
diff --git a/IntelFsp2Pkg/Tools/GenCfgOpt.py b/IntelFsp2Pkg/Tools/GenCfgOpt.py
index 128b896592..71c48f10e0 100644
--- a/IntelFsp2Pkg/Tools/GenCfgOpt.py
+++ b/IntelFsp2Pkg/Tools/GenCfgOpt.py
@@ -959,8 +959,13 @@ EndList
             UpdTxtFile = ''
             FvDir = self._FvDir
             if GuidList[Index] not in self._MacroDict:
-                self.Error = "%s definition is missing in DSC file" % (GuidList[Index])
-                return 1
+                NoFSPI = False
+                if GuidList[Index] == 'FSP_I_UPD_TOOL_GUID':
+                    NoFSPI = True
+                    continue
+                else:
+                    self.Error = "%s definition is missing in DSC file" % (GuidList[Index])
+                    return 1
 
             if UpdTxtFile == '':
                 UpdTxtFile = os.path.join(FvDir, self._MacroDict[GuidList[Index]] + '.txt')
@@ -1296,7 +1301,8 @@ EndList
                elif '_S' in SignatureStr[6:6+2]:
                    TxtBody.append("#define FSPS_UPD_SIGNATURE               %s        /* '%s' */\n\n" % (Item['value'], SignatureStr))
                elif '_I' in SignatureStr[6:6+2]:
-                   TxtBody.append("#define FSPI_UPD_SIGNATURE               %s        /* '%s' */\n\n" % (Item['value'], SignatureStr))
+                   if NoFSPI == True:
+                       TxtBody.append("#define FSPI_UPD_SIGNATURE               %s        /* '%s' */\n\n" % (Item['value'], SignatureStr))
         TxtBody.append("\n")
 
         for Region in ['UPD']:
@@ -1702,7 +1708,7 @@ EndList
 
 
 def Usage():
-    print ("GenCfgOpt Version 0.58")
+    print ("GenCfgOpt Version 0.59")
     print ("Usage:")
     print ("    GenCfgOpt  UPDTXT  PlatformDscFile BuildFvDir                 [-D Macros]")
     print ("    GenCfgOpt  HEADER  PlatformDscFile BuildFvDir  InputHFile     [-D Macros]")
-- 
2.35.0.windows.1



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