diff --git a/Include/Protocol/OcFirmwareRuntime.h b/Include/Protocol/OcFirmwareRuntime.h
new file mode 100644
index 00000000..608a5975
--- /dev/null
+++ b/Include/Protocol/OcFirmwareRuntime.h
@@ -0,0 +1,60 @@
+/** @file
+  Copyright (C) 2019, vit9696. All rights reserved.
+
+  All rights reserved.
+
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+
+#ifndef OC_FIRMWARE_RUNTIME_PROTOCOL_H
+#define OC_FIRMWARE_RUNTIME_PROTOCOL_H
+
+#define OC_FIRMWARE_RUNTIME_REVISION 1
+
+//
+// OC_FIRMWARE_RUNTIME_PROTOCOL_GUID
+// 9C820F96-F16C-4FFD-B266-DF0A8FDFC455
+//
+#define OC_FIRMWARE_RUNTIME_PROTOCOL_GUID   \
+  { 0x9C820F96, 0xF16C, 0x4FFD,             \
+    { 0xB2, 0x66, 0xDF, 0x0A, 0x8F, 0xDF, 0xC4, 0x55 } }
+
+//
+// Set NVRAM routing, returns previous value.
+//
+typedef
+BOOLEAN
+EFIAPI
+(*OC_FWRT_NVRAM_REDIRECT) (
+  IN BOOLEAN  NewValue
+  );
+
+//
+// Set GetVariable override for customising values.
+//
+typedef
+EFI_STATUS
+EFIAPI
+(*OC_FWRT_ON_GET_VARIABLE) (
+  IN  EFI_GET_VARIABLE  GetVariable,
+  OUT EFI_GET_VARIABLE  *OrgGetVariable  OPTIONAL
+  );
+
+//
+// Check for revision to ensure binary compatibility.
+//
+typedef struct {
+  UINTN                    Revision;
+  OC_FWRT_NVRAM_REDIRECT   SetNvram;
+  OC_FWRT_ON_GET_VARIABLE  OnGetVariable;
+} OC_FIRMWARE_RUNTIME_PROTOCOL;
+
+extern EFI_GUID gOcFirmwareRuntimeProtocolGuid;
+
+#endif // OC_FIRMWARE_RUNTIME_PROTOCOL_H
diff --git a/OcSupportPkg.dec b/OcSupportPkg.dec
index 2235aadc..5804c223 100644
--- a/OcSupportPkg.dec
+++ b/OcSupportPkg.dec
@@ -41,6 +41,9 @@
   ## Include/Protocol/OcLog.h
   gOcLogProtocolGuid             = { 0xDBB6008F, 0x89E4, 0x4272, { 0x98, 0x81, 0xCE, 0x3A, 0xFD, 0x97, 0x24, 0xD0 }}
 
+  ## Include/Protocol/OcFirmwareRuntime.h
+  gOcFirmwareRuntimeProtocolGuid = { 0x9C820F96, 0xF16C, 0x4FFD, { 0xB2, 0x66, 0xDF, 0x0A, 0x8F, 0xDF, 0xC4, 0x55 }}
+
   ## Include/Protocol/LegacyRegion.h
   gEfiLegacyRegionProtocolGuid   = { 0x0fc9013a, 0x0568, 0x4ba9, { 0x9b, 0x7e, 0xc9, 0xc3, 0x90, 0xa6, 0x60, 0x9b }}