EdkGenericBdsLib added

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2367 6f19259b-4bc3-4df7-8a09-765794883524
2007-02-12 23:39:38 +00:00
parent 15f83a8852
commit 8033e93148
10 changed files with 5016 additions and 0 deletions
--- a/EdkModulePkg/Library/EdkGenericBdsLib/Ipf/ShadowRom.c
+++ 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 ;
+}