1 files changed, 35 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Include/Protocol/SmmCpuIo2.h b/roms/edk2/MdePkg/Include/Protocol/SmmCpuIo2.h
new file mode 100644
index 000000000..78b85464e
--- /dev/null
+++ b/roms/edk2/MdePkg/Include/Protocol/SmmCpuIo2.h
@@ -0,0 +1,35 @@
+/** @file
+  SMM CPU I/O 2 protocol as defined in the PI 1.2 specification.
+
+  This protocol provides CPU I/O and memory access within SMM.
+
+  Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _SMM_CPU_IO2_H_
+#define _SMM_CPU_IO2_H_
+
+#include <Protocol/MmCpuIo.h>
+
+#define EFI_SMM_CPU_IO2_PROTOCOL_GUID EFI_MM_CPU_IO_PROTOCOL_GUID
+
+typedef EFI_MM_CPU_IO_PROTOCOL  EFI_SMM_CPU_IO2_PROTOCOL;
+
+///
+/// Width of the SMM CPU I/O operations
+///
+#define SMM_IO_UINT8  MM_IO_UINT8
+#define SMM_IO_UINT16 MM_IO_UINT16
+#define SMM_IO_UINT32 MM_IO_UINT32
+#define SMM_IO_UINT64 MM_IO_UINT64
+
+typedef EFI_MM_IO_WIDTH EFI_SMM_IO_WIDTH;
+typedef EFI_MM_CPU_IO EFI_SMM_CPU_IO2;
+
+typedef EFI_MM_IO_ACCESS EFI_SMM_IO_ACCESS2;
+
+extern EFI_GUID gEfiSmmCpuIo2ProtocolGuid;
+
+#endif