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Return EFI_WRITE_PROTECTED when setting HwErrRecSupport Global Variable at runtime. 

Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Guo Dong <guo.dong@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13372 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lzeng14 2012-05-30 02:42:26 +00:00
parent 6c310dfb78
commit 021a1af927
2 changed files with 23 additions and 3 deletions
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14
MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
View File

@ -1,6 +1,6 @@
/** @file
The common variable operation routines shared by DXE_RINTIME variable
The common variable operation routines shared by DXE_RUNTIME variable
module and DXE_SMM variable module.
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
@ -2065,7 +2065,17 @@ VariableServiceSetVariable (
(sizeof (VARIABLE_HEADER) + StrSize (VariableName) + DataSize > PcdGet32 (PcdMaxVariableSize))) {
return EFI_INVALID_PARAMETER;
}
}
}
if (AtRuntime ()) {
//
// HwErrRecSupport Global Variable identifies the level of hardware error record persistence
// support implemented by the platform. This variable is only modified by firmware and is read-only to the OS.
//
if (CompareGuid (VendorGuid, &gEfiGlobalVariableGuid) && (StrCmp (VariableName, L"HwErrRecSupport") == 0)) {
return EFI_WRITE_PROTECTED;
}
}
AcquireLockOnlyAtBootTime(&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);

12
SecurityPkg/VariableAuthenticated/RuntimeDxe/Variable.c
View File

@ -1,5 +1,5 @@
/** @file
The common variable operation routines shared by DXE_RINTIME variable
The common variable operation routines shared by DXE_RUNTIME variable
module and DXE_SMM variable module.
Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
@ -2216,6 +2216,16 @@ VariableServiceSetVariable (
}
}
if (AtRuntime ()) {
//
// HwErrRecSupport Global Variable identifies the level of hardware error record persistence
// support implemented by the platform. This variable is only modified by firmware and is read-only to the OS.
//
if (CompareGuid (VendorGuid, &gEfiGlobalVariableGuid) && (StrCmp (VariableName, L"HwErrRecSupport") == 0)) {
return EFI_WRITE_PROTECTED;
}
}
AcquireLockOnlyAtBootTime(&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
//