PI Enable:

1) The entry point of PeiCore has been changed to EFI_PEI_CORE_ENTRY_POINT defined in PI. 
2) Nt32, Tiger and lakeport platform's SecCore has been updated.
3) Autogen tools also has been updated.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3804 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Core/Pei/Ipf/Stack.c

@@ -16,6 +16,17 @@
 
 #include <PeiMain.h>
 
+VOID
+EFIAPI
+InternalSwitchStack (
+  IN      SWITCH_STACK_ENTRY_POINT  EntryPoint,
+  IN      VOID                      *Context1,   OPTIONAL
+  IN      VOID                      *Context2,   OPTIONAL
+  IN      VOID                      *Context3,   OPTIONAL
+  IN      VOID                      *NewStack,
+  IN      VA_LIST                   Marker
+  );
+
 /**
   Transfers control to a function starting with a new stack.
 
@@ -44,15 +55,18 @@ PeiSwitchStacks (
   IN      SWITCH_STACK_ENTRY_POINT  EntryPoint,
   IN      VOID                      *Context1,  OPTIONAL
   IN      VOID                      *Context2,  OPTIONAL
+  IN      VOID                      *Context3,  OPTIONAL
   IN      VOID                      *NewStack,
   IN      VOID                      *NewBsp
   )
 {
-  SwitchStack (
+  InternalSwitchStack(
     EntryPoint,
     Context1,
     Context2,
+    Context3,
     NewStack,
     NewBsp
     );
+
 }