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-rw-r--r--BaseTools/Source/C/Include/Common/UefiMultiPhase.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/BaseTools/Source/C/Include/Common/UefiMultiPhase.h b/BaseTools/Source/C/Include/Common/UefiMultiPhase.h
index b889508b85..5b5af8b43c 100644
--- a/BaseTools/Source/C/Include/Common/UefiMultiPhase.h
+++ b/BaseTools/Source/C/Include/Common/UefiMultiPhase.h
@@ -14,6 +14,15 @@
//
// Enumeration of memory types introduced in UEFI.
+// +---------------------------------------------------+
+// | 0..(EfiMaxMemoryType - 1) - Normal memory type |
+// +---------------------------------------------------+
+// | EfiMaxMemoryType..0x6FFFFFFF - Invalid |
+// +---------------------------------------------------+
+// | 0x70000000..0x7FFFFFFF - OEM reserved |
+// +---------------------------------------------------+
+// | 0x80000000..0xFFFFFFFF - OS reserved |
+// +---------------------------------------------------+
//
typedef enum {
EfiReservedMemoryType,
@@ -31,7 +40,11 @@ typedef enum {
EfiMemoryMappedIOPortSpace,
EfiPalCode,
EfiPersistentMemory,
- EfiMaxMemoryType
+ EfiMaxMemoryType,
+ MEMORY_TYPE_OEM_RESERVED_MIN = 0x70000000,
+ MEMORY_TYPE_OEM_RESERVED_MAX = 0x7FFFFFFF,
+ MEMORY_TYPE_OS_RESERVED_MIN = 0x80000000,
+ MEMORY_TYPE_OS_RESERVED_MAX = 0xFFFFFFFF
} EFI_MEMORY_TYPE;