Add missing definition of "EFI_PEI_DESCRIPTOR" in PI spec.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9550 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdePkg/Include/Pi/PiPeiCis.h b/MdePkg/Include/Pi/PiPeiCis.h
index 6fba4f747fc1f9b43aaec7cbbbf40e1562b5b492..35a54e72d4b58a1cf641cb64833f66f19a317785 100644 (file)
--- a/MdePkg/Include/Pi/PiPeiCis.h
+++ b/MdePkg/Include/Pi/PiPeiCis.h
@@ -129,6 +129,21 @@ struct _EFI_PEI_NOTIFY_DESCRIPTOR {
   EFI_PEIM_NOTIFY_ENTRY_POINT Notify;\r
 };\r
 \r
+///\r
+/// This data structure is the means by which callable services are installed and\r
+/// notifications are registered in the PEI phase.\r
+///\r
+typedef union {\r
+  ///\r
+  /// The typedef structure of the notification descriptor.\r
+  ///\r
+  EFI_PEI_NOTIFY_DESCRIPTOR   Notify;\r
+  ///\r
+  /// The typedef structure of the PPI descriptor.\r
+  ///\r
+  EFI_PEI_PPI_DESCRIPTOR      Ppi;\r
+} EFI_PEI_DESCRIPTOR;\r
+\r
 /**\r
   This service is the first one provided by the PEI Foundation.  This function \r
   installs an interface in the PEI PPI database by GUID.  The purpose of the \r