diff --git a/MdePkg/Include/IndustryStandard/ServiceProcessorManagementInterfaceTable.h b/MdePkg/Include/IndustryStandard/ServiceProcessorManagementInterfaceTable.h
old mode 100644
new mode 100755
index 15f47f1535..131cf40acc
--- a/MdePkg/Include/IndustryStandard/ServiceProcessorManagementInterfaceTable.h
+++ b/MdePkg/Include/IndustryStandard/ServiceProcessorManagementInterfaceTable.h
@@ -3,6 +3,8 @@
   Intelligent Platform Management Interface Specification Second Generation.
 
   Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2024 Advanced Micro Devices, Inc. All rights reserved.
+
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
   @par Revision Reference:
@@ -95,4 +97,17 @@ typedef struct {
 
 #pragma pack()
 
+///
+/// SPMI Revision (defined in spec)
+///
+#define EFI_ACPI_SERVICE_PROCESSOR_MANAGEMENT_INTERFACE_5_TABLE_REVISION  0x05
+
+///
+/// SPMI Interface Type
+///
+#define EFI_ACPI_SPMI_INTERFACE_TYPE_KCS   0x01
+#define EFI_ACPI_SPMI_INTERFACE_TYPE_SMIC  0x02
+#define EFI_ACPI_SPMI_INTERFACE_TYPE_BT    0x03
+#define EFI_ACPI_SPMI_INTERFACE_TYPE_SSIF  0x04
+
 #endif