diff options
| author | lzeng14 <lzeng14@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-30 02:42:26 +0000 |
|---|---|---|
| committer | lzeng14 <lzeng14@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-30 02:42:26 +0000 |
| commit | 021a1af927f5ba50ecfe21259a0928a7308e70ff (patch) | |
| tree | c27b487fccddb64e5802e6cfb1b393abc792fb23 /MdeModulePkg | |
| parent | 6c310dfb78cdbda612b9f5850097580a5e3aa95c (diff) | |
| download | edk2-platforms-021a1af927f5ba50ecfe21259a0928a7308e70ff.tar.xz | |
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
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c index 94ec660c04..8f1ae7b130 100644 --- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c +++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c @@ -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);
|