4 Copyright (c) 2004 - 2008, Intel Corporation. <BR>
5 All rights reserved. This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #include "InternalBdsLib.h"
17 UINT8 mShadowRomFlag
= 0;
20 Shadow all opton ROM if the it is not done.
28 EFI_LEGACY_BIOS_PROTOCOL
*LegacyBios
;
30 // Rom shadow only do once.
32 if (mShadowRomFlag
== 0) {
33 Status
= gBS
->LocateProtocol (
34 &gEfiLegacyBiosProtocolGuid
,
38 if (!EFI_ERROR (Status
)) {
39 LegacyBios
->PrepareToBootEfi (LegacyBios
, NULL
, NULL
);