1 files changed, 38 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/SmmAccess2.h b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/SmmAccess2.h
new file mode 100644
index 0000000000..06475e1722
--- /dev/null
+++ b/src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/Protocol/SmmAccess2.h
@@ -0,0 +1,38 @@
+/** @file
+  EFI SMM Access2 Protocol as defined in the PI 1.2 specification.
+
+  This protocol is used to control the visibility of the SMRAM on the platform.
+  It abstracts the location and characteristics of SMRAM.  The expectation is
+  that the north bridge or memory controller would publish this protocol.
+
+  The principal functionality found in the memory controller includes the following:
+  - Exposing the SMRAM to all non-SMM agents, or the "open" state
+  - Shrouding the SMRAM to all but the SMM agents, or the "closed" state
+  - Preserving the system integrity, or "locking" the SMRAM, such that the settings cannot be
+    perturbed by either boot service or runtime agents
+
+  Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _SMM_ACCESS2_H_
+#define _SMM_ACCESS2_H_
+
+#include <Protocol/MmAccess.h>
+
+#define EFI_SMM_ACCESS2_PROTOCOL_GUID       EFI_MM_ACCESS_PROTOCOL_GUID
+
+typedef EFI_MM_ACCESS_PROTOCOL  EFI_SMM_ACCESS2_PROTOCOL;
+
+typedef EFI_MM_OPEN EFI_SMM_OPEN2;
+
+typedef EFI_MM_CLOSE EFI_SMM_CLOSE2;
+
+typedef EFI_MM_LOCK EFI_SMM_LOCK2;
+
+typedef EFI_MM_CAPABILITIES EFI_SMM_CAPABILITIES2;
+extern EFI_GUID gEfiSmmAccess2ProtocolGuid;
+
+#endif
+