Revision: 14205
http://edk2.svn.sourceforge.net/edk2/?rev=14205&view=rev
Author: li-elvin
Date: 2013-03-15 01:34:21 +0000 (Fri, 15 Mar 2013)
Log Message:
-----------
Call LegacyBiosInstallVgaRom to shadow Legacy VBIOS instead of
LegacyBiosInstallPciRom during legacy boot.
Signed-off-by: Li Elvin <[email protected]>
Reviewed-by: Ni Ruiyu <[email protected]>
Modified Paths:
--------------
trunk/edk2/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
trunk/edk2/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c
Modified:
trunk/edk2/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
===================================================================
--- trunk/edk2/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
2013-03-13 06:44:10 UTC (rev 14204)
+++ trunk/edk2/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBiosInterface.h
2013-03-15 01:34:21 UTC (rev 14205)
@@ -1,6 +1,6 @@
/** @file
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@@ -1520,4 +1520,20 @@
IN UINTN StackSize
);
+/**
+ Load a legacy PC-AT OpROM for VGA controller.
+
+ @param Private Driver private data.
+
+ @retval EFI_SUCCESS Legacy ROM successfully installed for this
device.
+ @retval EFI_DEVICE_ERROR No VGA device handle found, or native EFI
video
+ driver cannot be successfully disconnected,
or VGA
+ thunk driver cannot be successfully connected.
+
+**/
+EFI_STATUS
+LegacyBiosInstallVgaRom (
+ IN LEGACY_BIOS_INSTANCE *Private
+ );
+
#endif
Modified: trunk/edk2/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c
===================================================================
--- trunk/edk2/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c
2013-03-13 06:44:10 UTC (rev 14204)
+++ trunk/edk2/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c
2013-03-15 01:34:21 UTC (rev 14205)
@@ -1,6 +1,6 @@
/** @file
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@@ -1715,7 +1715,21 @@
if (!EFI_ERROR (Status)) {
continue;
}
+
//
+ // If legacy VBIOS Oprom has not been dispatched before, install legacy
VBIOS here.
+ //
+ if (IS_PCI_DISPLAY (&Pci) && Index == 0) {
+ Status = LegacyBiosInstallVgaRom (Private);
+ //
+ // A return status of EFI_NOT_FOUND is considered valid (No EFI
+ // driver is controlling video).
+ //
+ ASSERT ((Status == EFI_SUCCESS) || (Status == EFI_NOT_FOUND));
+ continue;
+ }
+
+ //
// Install legacy ROM
//
Status = LegacyBiosInstallPciRom (
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