Revision: 16685
http://sourceforge.net/p/edk2/code/16685
Author: lzeng14
Date: 2015-02-02 03:18:10 +0000 (Mon, 02 Feb 2015)
Log Message:
-----------
SecurityPkg Variable: Before EndOfDxe, just record the current boot
VarErrorFlag to local variable.
And leave the variable error flag in NV flash as the last boot variable error
flag.
After EndOfDxe in InitializeVarErrorFlag (), the variable error flag in NV flash
will be initialized to this local current boot variable error flag.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <[email protected]>
Reviewed-by: Jiewen Yao <[email protected]>
Modified Paths:
--------------
trunk/edk2/SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.c
Modified: trunk/edk2/SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.c
===================================================================
--- trunk/edk2/SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.c
2015-02-02 03:17:27 UTC (rev 16684)
+++ trunk/edk2/SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.c
2015-02-02 03:18:10 UTC (rev 16685)
@@ -58,7 +58,10 @@
///
BOOLEAN mEnableLocking = TRUE;
-/**
+//
+// It will record the current boot error flag before EndOfDxe.
+//
+VAR_ERROR_FLAG mCurrentBootVarErrFlag = VAR_ERROR_FLAG_NO_ERROR;
SecureBoot Hook for auth variable update.
@@ -579,6 +582,17 @@
}
);
+ if (!mEndOfDxe) {
+ //
+ // Before EndOfDxe, just record the current boot variable error flag to
local variable,
+ // and leave the variable error flag in NV flash as the last boot variable
error flag.
+ // After EndOfDxe in InitializeVarErrorFlag (), the variable error flag in
NV flash
+ // will be initialized to this local current boot variable error flag.
+ //
+ mCurrentBootVarErrFlag &= Flag;
+ return;
+ }
+
//
// Record error flag (it should have be initialized).
//
@@ -637,7 +651,7 @@
return;
}
- Flag = VAR_ERROR_FLAG_NO_ERROR;
+ Flag = mCurrentBootVarErrFlag;
DEBUG ((EFI_D_INFO, "Initialize variable error flag (%02x)\n", Flag));
Status = FindVariable (
------------------------------------------------------------------------------
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