//\r
ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;\r
\r
+STATIC\r
UINT32\r
EFIAPI\r
ArrayLength (\r
return (Count * 2) + 2;\r
}\r
\r
+STATIC\r
BOOLEAN\r
EFIAPI\r
IsValidVariableHeader (\r
return TRUE;\r
}\r
\r
+STATIC\r
EFI_STATUS\r
EFIAPI\r
UpdateVariableStore (\r
return EFI_SUCCESS;\r
}\r
\r
+STATIC\r
VARIABLE_STORE_STATUS\r
EFIAPI\r
GetVariableStoreStatus (\r
}\r
}\r
\r
+STATIC\r
UINT8 *\r
EFIAPI\r
GetVariableDataPtr (\r
return (UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (Variable) + Variable->NameSize + GET_PAD_SIZE (Variable->NameSize));\r
}\r
\r
+STATIC\r
VARIABLE_HEADER *\r
EFIAPI\r
GetNextVariablePtr (\r
return (VARIABLE_HEADER *) ((UINTN) GetVariableDataPtr (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));\r
}\r
\r
+STATIC\r
VARIABLE_HEADER *\r
EFIAPI\r
GetEndPointer (\r
return (VARIABLE_HEADER *) ((UINTN) VarStoreHeader + VarStoreHeader->Size);\r
}\r
\r
+STATIC\r
EFI_STATUS\r
EFIAPI\r
Reclaim (\r
return Status;\r
}\r
\r
+STATIC\r
EFI_STATUS\r
EFIAPI\r
FindVariable (\r
Variable.StartPtr = (VARIABLE_HEADER *) ((UINTN) (Global->VolatileVariableBase + sizeof (VARIABLE_STORE_HEADER)));\r
Variable.EndPtr = (VARIABLE_HEADER *) GetEndPointer ((VARIABLE_STORE_HEADER *) ((UINTN) Global->VolatileVariableBase));\r
} else {\r
- return EFI_NOT_FOUND;\r
+ goto Error;\r
}\r
\r
Variable.CurrPtr = Variable.StartPtr;\r
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);\r
}\r
\r
+Error:\r
return EFI_NOT_FOUND;\r
}\r
\r
\r
if (Status == EFI_INVALID_PARAMETER) {\r
return Status;\r
- }\r
- //\r
- // The size of the VariableName, including the Unicode Null in bytes plus\r
- // the DataSize is limited to maximum size of MAX_VARIABLE_SIZE (1024) bytes.\r
- //\r
- else if (sizeof (VARIABLE_HEADER) + ArrayLength (VariableName) + DataSize > MAX_VARIABLE_SIZE) {\r
+ } else if (!EFI_ERROR (Status) && Variable.Volatile && EfiAtRuntime()) {\r
+ //\r
+ // If EfiAtRuntime and the variable is Volatile and Runtime Access, \r
+ // the volatile is ReadOnly, and SetVariable should be aborted and \r
+ // return EFI_WRITE_PROTECTED.\r
+ //\r
+ return EFI_WRITE_PROTECTED;\r
+ } else if (sizeof (VARIABLE_HEADER) + ArrayLength (VariableName) + DataSize > MAX_VARIABLE_SIZE) {\r
+ //\r
+ // The size of the VariableName, including the Unicode Null in bytes plus\r
+ // the DataSize is limited to maximum size of MAX_VARIABLE_SIZE (1024) bytes.\r
+ //\r
return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // Make sure if runtime bit is set, boot service bit is set also\r
- //\r
- else if ((Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == EFI_VARIABLE_RUNTIME_ACCESS\r
- ) {\r
+ } else if (Attributes == EFI_VARIABLE_NON_VOLATILE) {\r
+ //\r
+ // Make sure not only EFI_VARIABLE_NON_VOLATILE is set \r
+ //\r
return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // Runtime but Attribute is not Runtime\r
- //\r
- else if (EfiAtRuntime () && Attributes && !(Attributes & EFI_VARIABLE_RUNTIME_ACCESS)) {\r
+ } else if ((Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == \r
+ EFI_VARIABLE_RUNTIME_ACCESS) {\r
+ //\r
+ // Make sure if runtime bit is set, boot service bit is set also\r
+ //\r
return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // Cannot set volatile variable in Runtime\r
- //\r
- else if (EfiAtRuntime () && Attributes && !(Attributes & EFI_VARIABLE_NON_VOLATILE)) {\r
+ } else if (EfiAtRuntime () && Attributes && !(Attributes & EFI_VARIABLE_RUNTIME_ACCESS)) {\r
+ //\r
+ // Runtime but Attribute is not Runtime\r
+ //\r
return EFI_INVALID_PARAMETER;\r
- }\r
- //\r
- // Setting a data variable with no access, or zero DataSize attributes\r
- // specified causes it to be deleted.\r
- //\r
- else if (DataSize == 0 || Attributes == 0) {\r
+ } else if (EfiAtRuntime () && Attributes && !(Attributes & EFI_VARIABLE_NON_VOLATILE)) {\r
+ //\r
+ // Cannot set volatile variable in Runtime\r
+ //\r
+ return EFI_INVALID_PARAMETER;\r
+ } else if (DataSize == 0 || (Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == 0) {\r
+ //\r
+ // Setting a data variable with no access, or zero DataSize attributes\r
+ // specified causes it to be deleted.\r
+ //\r
if (!EFI_ERROR (Status)) {\r
State = Variable.CurrPtr->State;\r
State &= VAR_DELETED;\r
UINT32 Instance;\r
EFI_PHYSICAL_ADDRESS FvVolHdr;\r
\r
- EFI_FLASH_MAP_ENTRY_DATA *FlashMapEntryData;\r
+ UINT64 TempVariableStoreHeader;\r
+\r
EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;\r
EFI_FLASH_SUBAREA_ENTRY VariableStoreEntry;\r
UINT64 BaseAddress;\r
UINT64 Length;\r
UINTN Index;\r
UINT8 Data;\r
- EFI_PEI_HOB_POINTERS GuidHob;\r
\r
Status = gBS->AllocatePool (\r
EfiRuntimeServicesData,\r
// Get non volatile varaible store\r
//\r
\r
- FlashMapEntryData = NULL;\r
-\r
- GuidHob.Raw = GetHobList ();\r
- while (NULL != (GuidHob.Raw = GetNextGuidHob (&gEfiFlashMapHobGuid, GuidHob.Raw))) {\r
- FlashMapEntryData = (EFI_FLASH_MAP_ENTRY_DATA *) GET_GUID_HOB_DATA (GuidHob.Guid);\r
-\r
- if (FlashMapEntryData->AreaType == EFI_FLASH_AREA_EFI_VARIABLES) {\r
- break;\r
- }\r
- GuidHob.Raw = GET_NEXT_HOB (GuidHob);\r
- }\r
-\r
- if (NULL == GuidHob.Raw || FlashMapEntryData == NULL) {\r
- gBS->FreePool (mVariableModuleGlobal);\r
- gBS->FreePool (VolatileVariableStore);\r
- return EFI_NOT_FOUND;\r
- }\r
-\r
- //\r
- // Currently only one non-volatile variable store is supported\r
- //\r
- if (FlashMapEntryData->NumEntries != 1) {\r
- gBS->FreePool (mVariableModuleGlobal);\r
- gBS->FreePool (VolatileVariableStore);\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- CopyMem (&VariableStoreEntry, &FlashMapEntryData->Entries[0], sizeof (VariableStoreEntry));\r
-\r
+ TempVariableStoreHeader = (UINT64) PcdGet32 (PcdFlashNvStorageVariableBase);\r
+ VariableStoreEntry.Base = TempVariableStoreHeader + \\r
+ (((EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) (TempVariableStoreHeader)) -> HeaderLength);\r
+ VariableStoreEntry.Length = (UINT64) PcdGet32 (PcdFlashNvStorageVariableSize) - \\r
+ (((EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) (TempVariableStoreHeader)) -> HeaderLength);\r
//\r
// Mark the variable storage region of the FLASH as RUNTIME\r
//\r
\r
mVariableModuleGlobal->NonVolatileLastVariableOffset = (UINTN) NextVariable - (UINTN) CurrPtr;\r
\r
+ //\r
+ // Check if the free area is blow a threshold\r
+ //\r
+ if ((((VARIABLE_STORE_HEADER *)((UINTN) CurrPtr))->Size - mVariableModuleGlobal->NonVolatileLastVariableOffset) < VARIABLE_RECLAIM_THRESHOLD) {\r
+ Status = Reclaim (\r
+ mVariableModuleGlobal->VariableBase[Physical].NonVolatileVariableBase,\r
+ &mVariableModuleGlobal->NonVolatileLastVariableOffset,\r
+ FALSE\r
+ );\r
+ }\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->FreePool (mVariableModuleGlobal);\r
+ gBS->FreePool (VolatileVariableStore);\r
+ return Status;\r
+ }\r
+\r
//\r
// Check if the free area is really free.\r
//\r