X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=IntelFrameworkModulePkg%2FLibrary%2FGenericBdsLib%2FIpf%2FShadowRom.c;fp=IntelFrameworkModulePkg%2FLibrary%2FGenericBdsLib%2FIpf%2FShadowRom.c;h=10e8f55c55b2a87ac46efccf4a1070bc6dfc4c00;hb=5c08e1173703234cc2913757f237ee916087498a;hp=0000000000000000000000000000000000000000;hpb=c516c7178a735366468dd4692d121213bb137888;p=mirror_edk2.git

diff --git a/IntelFrameworkModulePkg/Library/GenericBdsLib/Ipf/ShadowRom.c b/IntelFrameworkModulePkg/Library/GenericBdsLib/Ipf/ShadowRom.c
new file mode 100644
index 0000000000..10e8f55c55
--- /dev/null
+++ b/IntelFrameworkModulePkg/Library/GenericBdsLib/Ipf/ShadowRom.c
@@ -0,0 +1,46 @@
+/** @file
+  Shadow all option rom
+
+Copyright (c) 2004 - 2008, Intel Corporation. <BR>
+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.
+
+**/
+
+#include "InternalBdsLib.h"
+
+UINT8 mShadowRomFlag = 0;
+
+/**
+  Shadow all opton ROM if the it is not done.
+**/
+VOID
+ShadowAllOptionRom(
+  VOID
+  )
+{
+  EFI_STATUS                Status;
+  EFI_LEGACY_BIOS_PROTOCOL  *LegacyBios;
+  //
+  // Rom shadow only do once.
+  //
+  if (mShadowRomFlag == 0) {
+    Status = gBS->LocateProtocol (
+                    &gEfiLegacyBiosProtocolGuid,
+                    NULL,
+                    (VOID **) &LegacyBios
+                    );
+    if (!EFI_ERROR (Status)) {
+      LegacyBios->PrepareToBootEfi (LegacyBios, NULL, NULL);
+    }
+
+    mShadowRomFlag = 1;
+  }
+
+  return ;
+}