diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
index cc893a49a7..fcc0190d1e 100644
--- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
 
 This program and the accompanying materials
 are licensed and made available under the terms and conditions
@@ -481,7 +481,8 @@ typedef enum {
   EfiAcpiAddressRangeMemory   = 1,
   EfiAcpiAddressRangeReserved = 2,
   EfiAcpiAddressRangeACPI     = 3,
-  EfiAcpiAddressRangeNVS      = 4
+  EfiAcpiAddressRangeNVS      = 4,
+  EfiAddressRangePersistentMemory = 7
 } EFI_ACPI_MEMORY_TYPE;
 
 typedef struct {
diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c
index 5848f9f164..52bcae2d13 100644
--- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c
@@ -1623,6 +1623,9 @@ EfiMemoryTypeToE820Type (
   case EfiRuntimeServicesData:
     return EfiAcpiAddressRangeMemory;
 
+  case EfiPersistentMemory:
+    return EfiAddressRangePersistentMemory;
+
   case EfiACPIReclaimMemory:
     return EfiAcpiAddressRangeACPI;