From 8033e9314810ae2e7544bd35fa30451f0a8b7d16 Mon Sep 17 00:00:00 2001 From: tgingold Date: Mon, 12 Feb 2007 23:39:38 +0000 Subject: EdkGenericBdsLib added git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2367 6f19259b-4bc3-4df7-8a09-765794883524 --- .../Library/EdkGenericBdsLib/Ipf/ShadowRom.c | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 EdkModulePkg/Library/EdkGenericBdsLib/Ipf/ShadowRom.c (limited to 'EdkModulePkg/Library/EdkGenericBdsLib/Ipf/ShadowRom.c') diff --git a/EdkModulePkg/Library/EdkGenericBdsLib/Ipf/ShadowRom.c b/EdkModulePkg/Library/EdkGenericBdsLib/Ipf/ShadowRom.c new file mode 100644 index 0000000000..bbd72200a2 --- /dev/null +++ b/EdkModulePkg/Library/EdkGenericBdsLib/Ipf/ShadowRom.c @@ -0,0 +1,48 @@ +/*++ + +Copyright (c) 2006, 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: + + ShadowRom.c + +Abstract: + + Shadow all option rom + +Revision History + +--*/ + +UINT8 mShadowRomFlag = 0; + +VOID +ShadowAllOptionRom() +{ + EFI_STATUS Status; + EFI_LEGACY_BIOS_PROTOCOL *LegacyBios; + // + // Rom shadow only do once. + // + if (mShadowRomFlag == 0) { + Status = gBS->LocateProtocol ( + &gEfiLegacyBiosProtocolGuid, + NULL, + &LegacyBios + ); + if (!EFI_ERROR (Status)) { + LegacyBios->PrepareToBootEfi (LegacyBios, NULL, NULL); + } + + mShadowRomFlag = 1; + } + + return ; +} -- cgit v1.2.3