Set the stack alignment for X64 to 16 bytes per the X64 Calling Convention


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1933 6f19259b-4bc3-4df7-8a09-765794883524
diff --git a/MdePkg/Include/x64/ProcessorBind.h b/MdePkg/Include/x64/ProcessorBind.h
index d8c7692..49cb117 100644
--- a/MdePkg/Include/x64/ProcessorBind.h
+++ b/MdePkg/Include/x64/ProcessorBind.h
@@ -166,7 +166,7 @@
 //

 // The stack alignment required for X64

 //

-#define CPU_STACK_ALIGNMENT   sizeof(UINTN)

+#define CPU_STACK_ALIGNMENT   16

 

 //

 // Modifier to ensure that all protocol member functions and EFI intrinsics