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diff --git a/EDK/Foundation/Framework/Protocol/AcpiSupport/AcpiSupport.h b/EDK/Foundation/Framework/Protocol/AcpiSupport/AcpiSupport.h
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+/*++
+
+Copyright (c) 1999 - 2005, Intel Corporation
+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.
+
+
+Module Name:
+
+  AcpiSupport.h
+
+Abstract:
+
+  Definition of the ACPI Support protocol.  This is defined in the 
+  Tiano ACPI External Product Specification, revision 0.5.1.
+
+--*/
+
+#ifndef _ACPI_SUPPORT_PROTOCOL_H_
+#define _ACPI_SUPPORT_PROTOCOL_H_
+
+//
+// Includes
+//
+#include "Tiano.h"
+
+//
+// Forward reference for pure ANSI compatability
+//
+EFI_FORWARD_DECLARATION (EFI_ACPI_SUPPORT_PROTOCOL);
+
+//
+// ACPI Support Protocol GUID
+//
+#define EFI_ACPI_SUPPORT_GUID \
+  { \
+    0xdbff9d55, 0x89b7, 0x46da, 0xbd, 0xdf, 0x67, 0x7d, 0x3d, 0xc0, 0x24, 0x1d \
+  }
+
+//
+// Extern the GUID for protocol users.
+//
+extern EFI_GUID gEfiAcpiSupportGuid;
+
+//
+// Protocol Data Definitions
+//
+//
+// ACPI Version bitmap definition:
+//
+// EFI_ACPI_TABLE_VERSION_1_0B - ACPI Version 1.0b
+// EFI_ACPI_TABLE_VERSION_2_0 - ACPI Version 2.0
+// EFI_ACPI_TABLE_VERSION_3_0 - ACPI Version 3.0
+// EFI_ACPI_TABLE_VERSION_NONE - No ACPI Versions.  This might be used
+//  to create memory-based operation regions or other information
+//  that is not part of the ACPI "tree" but must still be found
+//  in ACPI memory space and/or managed by the core ACPI driver.
+//
+// Note that EFI provides discrete GUIDs for each version of ACPI
+// that is supported.  It is expected that each EFI GUIDed
+// version of ACPI will also have a corresponding bitmap
+// definition.  This allows maintenance of separate ACPI trees
+// for each distinctly different version of ACPI.
+//
+#define EFI_ACPI_TABLE_VERSION      UINT32
+
+#define EFI_ACPI_TABLE_VERSION_NONE (1 << 0)
+#define EFI_ACPI_TABLE_VERSION_1_0B (1 << 1)
+#define EFI_ACPI_TABLE_VERSION_2_0  (1 << 2)
+#define EFI_ACPI_TABLE_VERSION_3_0  (1 << 3)
+
+//
+// Protocol Member Functions
+//
+//
+// Retrieve a copy of an ACPI table and the handle of the table.
+//
+typedef
+EFI_STATUS
+EFI_BOOTSERVICE
+(EFIAPI *EFI_ACPI_GET_ACPI_TABLE) (
+  IN EFI_ACPI_SUPPORT_PROTOCOL            * This,
+  IN INTN                                 Index,
+  OUT VOID                                **Table,
+  OUT EFI_ACPI_TABLE_VERSION              * Version,
+  OUT UINTN                               *Handle
+  );
+
+//
+// Add, update, or remove a table.
+//
+typedef
+EFI_STATUS
+EFI_BOOTSERVICE
+(EFIAPI *EFI_ACPI_SET_ACPI_TABLE) (
+  IN EFI_ACPI_SUPPORT_PROTOCOL            * This,
+  IN VOID                                 *Table OPTIONAL,
+  IN BOOLEAN                              Checksum,
+  IN EFI_ACPI_TABLE_VERSION               Version,
+  IN OUT UINTN                            *Handle
+  );
+
+//
+// Publish tables to the outside world
+//
+typedef
+EFI_STATUS
+EFI_BOOTSERVICE
+(EFIAPI *EFI_ACPI_PUBLISH_TABLES) (
+  IN EFI_ACPI_SUPPORT_PROTOCOL            * This,
+  IN EFI_ACPI_TABLE_VERSION               Version
+  );
+
+//
+// ACPI Support Protocol
+//
+typedef struct _EFI_ACPI_SUPPORT_PROTOCOL {
+  EFI_ACPI_GET_ACPI_TABLE GetAcpiTable;
+  EFI_ACPI_SET_ACPI_TABLE SetAcpiTable;
+  EFI_ACPI_PUBLISH_TABLES PublishTables;
+} EFI_ACPI_SUPPORT_PROTOCOL;
+
+#endif