Revision: 14838
http://sourceforge.net/p/edk2/code/14838
Author: jljusten
Date: 2013-11-12 18:34:43 +0000 (Tue, 12 Nov 2013)
Log Message:
-----------
OvmfPkg/EmuVariableFvbRuntimeDxe: Disable if flash variables are supported
If QEMU flash is supported, then the PcdFlashNvStorageVariableBase64
will be set by the flash FVB driver. If it is set to a non-zero value,
then we disable memory based variables.
In future patches we will add the flash FVB driver and
force it to run before this driver. Therefore, if QEMU flash
writing is supported, then this driver will be disabled.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Laszlo Ersek <[email protected]>
Modified Paths:
--------------
trunk/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.c
Modified: trunk/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.c
===================================================================
--- trunk/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.c 2013-11-12 18:34:36 UTC
(rev 14837)
+++ trunk/edk2/OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.c 2013-11-12 18:34:43 UTC
(rev 14838)
@@ -819,6 +819,12 @@
return EFI_INVALID_PARAMETER;
}
+ if (PcdGet64 (PcdFlashNvStorageVariableBase64) != 0) {
+ DEBUG ((EFI_D_INFO, "Disabling EMU Variable FVB since "
+ "flash variables appear to be supported.\n"));
+ return EFI_ABORTED;
+ }
+
//
// By default we will initialize the FV contents. But, if
// PcdEmuVariableNvStoreReserved is non-zero, then we will
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