From 130e25699a6d060c966978e345c6c8eeed85d065 Mon Sep 17 00:00:00 2001 From: yshang1 Date: Mon, 14 Jan 2008 06:35:23 +0000 Subject: [PATCH] 1) Replace MACRO with C functions. 2) Add HEADER_VALID_ONLY state of variable, which represents only the header is valid and the data/name is stale. This may be caused by incomplete data updating. Adding the state helps to check whether the header is valid. If variable header is valid, then we must skip the data of variable with the valid size. If the header is invalid, we should only skip the header of variable. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4555 6f19259b-4bc3-4df7-8a09-765794883524 --- .../Universal/VariablePei/Variable.c | 220 ++++++++++++++++-- .../Universal/VariablePei/Variable.h | 21 -- MdeModulePkg/Include/VariableFormat.h | 4 +- .../Universal/Variable/Pei/Variable.c | 193 ++++++++++++--- .../Universal/Variable/Pei/Variable.h | 21 -- .../Universal/Variable/RuntimeDxe/Variable.c | 140 ++++++++++- .../Universal/Variable/RuntimeDxe/Variable.h | 18 -- 7 files changed, 498 insertions(+), 119 deletions(-) diff --git a/IntelFrameworkModulePkg/Universal/VariablePei/Variable.c b/IntelFrameworkModulePkg/Universal/VariablePei/Variable.c index 3751845fbf..72d8fd1252 100644 --- a/IntelFrameworkModulePkg/Universal/VariablePei/Variable.c +++ b/IntelFrameworkModulePkg/Universal/VariablePei/Variable.c @@ -80,27 +80,56 @@ Returns: } -STATIC VARIABLE_HEADER * -GetNextVariablePtr ( - IN VARIABLE_HEADER *Variable +GetStartPointer ( + IN VARIABLE_STORE_HEADER *VarStoreHeader ) /*++ Routine Description: - This code checks if variable header is valid or not. + This code gets the pointer to the first variable memory pointer byte Arguments: - Variable Pointer to the Variable Header. + + VarStoreHeader Pointer to the Variable Store Header. Returns: - TRUE Variable header is valid. - FALSE Variable header is not valid. + + VARIABLE_HEADER* Pointer to last unavailable Variable Header --*/ { - return (VARIABLE_HEADER *) HEADER_ALIGN ((UINTN) GET_VARIABLE_DATA_PTR (Variable) + DATASIZE_OF_VARIABLE (Variable) + GET_PAD_SIZE (DATASIZE_OF_VARIABLE (Variable))); + // + // The end of variable store + // + return (VARIABLE_HEADER *) HEADER_ALIGN (VarStoreHeader + 1); +} + +VARIABLE_HEADER * +GetEndPointer ( + IN VARIABLE_STORE_HEADER *VarStoreHeader + ) +/*++ + +Routine Description: + + This code gets the pointer to the last variable memory pointer byte + +Arguments: + + VarStoreHeader Pointer to the Variable Store Header. + +Returns: + + VARIABLE_HEADER* Pointer to last unavailable Variable Header + +--*/ +{ + // + // The end of variable store + // + return (VARIABLE_HEADER *) HEADER_ALIGN ((UINTN) VarStoreHeader + VarStoreHeader->Size); } STATIC @@ -131,6 +160,159 @@ Returns: return TRUE; } + +UINTN +NameSizeOfVariable ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the size of name of variable. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + UINTN Size of variable in bytes + +--*/ +{ + if (Variable->State == (UINT8) (-1) || + Variable->DataSize == (UINT32) -1 || + Variable->NameSize == (UINT32) -1 || + Variable->Attributes == (UINT32) -1) { + return 0; + } + return (UINTN) Variable->NameSize; +} + +UINTN +DataSizeOfVariable ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the size of name of variable. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + UINTN Size of variable in bytes + +--*/ +{ + if (Variable->State == (UINT8) -1 || + Variable->DataSize == (UINT32) -1 || + Variable->NameSize == (UINT32) -1 || + Variable->Attributes == (UINT32) -1) { + return 0; + } + return (UINTN) Variable->DataSize; +} + +CHAR16 * +GetVariableNamePtr ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the pointer to the variable name. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + CHAR16* Pointer to Variable Name + +--*/ +{ + + return (CHAR16 *) (Variable + 1); +} + + +UINT8 * +GetVariableDataPtr ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the pointer to the variable data. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + UINT8* Pointer to Variable Data + +--*/ +{ + UINTN Value; + + // + // Be careful about pad size for alignment + // + Value = (UINTN) GetVariableNamePtr (Variable); + Value += NameSizeOfVariable (Variable); + Value += GET_PAD_SIZE (NameSizeOfVariable (Variable)); + + return (UINT8 *) Value; +} + +VARIABLE_HEADER * +GetNextVariablePtr ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the pointer to the next variable header. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + VARIABLE_HEADER* Pointer to next variable header. + +--*/ +{ + UINTN Value; + + if (!IsValidVariableHeader (Variable)) { + return NULL; + } + + Value = (UINTN) GetVariableDataPtr (Variable); + Value += DataSizeOfVariable (Variable); + Value += GET_PAD_SIZE (DataSizeOfVariable (Variable)); + + // + // Be careful about pad size for alignment + // + return (VARIABLE_HEADER *) HEADER_ALIGN (Value); +} + + STATIC VARIABLE_STORE_STATUS EFIAPI @@ -204,6 +386,8 @@ Returns: --*/ { + VOID *Point; + if (VariableName[0] == 0) { PtrTrack->CurrPtr = Variable; return EFI_SUCCESS; @@ -218,8 +402,9 @@ Returns: (((INT32 *) VendorGuid)[2] == ((INT32 *) &Variable->VendorGuid)[2]) && (((INT32 *) VendorGuid)[3] == ((INT32 *) &Variable->VendorGuid)[3]) ) { - ASSERT (NAMESIZE_OF_VARIABLE (Variable) != 0); - if (!CompareMem (VariableName, GET_VARIABLE_NAME_PTR (Variable), NAMESIZE_OF_VARIABLE (Variable))) { + ASSERT (NameSizeOfVariable (Variable) != 0); + Point = (VOID *) GetVariableNamePtr (Variable); + if (!CompareMem (VariableName, Point, NameSizeOfVariable (Variable))) { PtrTrack->CurrPtr = Variable; return EFI_SUCCESS; } @@ -288,6 +473,7 @@ Returns: for (Count = 0; Count < IndexTable->Length; Count++) { MaxIndex = GetVariableByIndex (IndexTable, Count); + if (CompareWithValidVariable (MaxIndex, VariableName, VendorGuid, PtrTrack) == EFI_SUCCESS) { PtrTrack->StartPtr = IndexTable->StartPtr; PtrTrack->EndPtr = IndexTable->EndPtr; @@ -323,8 +509,8 @@ Returns: // // Find the variable by walk through non-volatile variable store // - IndexTable->StartPtr = (VARIABLE_HEADER *) (VariableStoreHeader + 1); - IndexTable->EndPtr = (VARIABLE_HEADER *) ((UINTN) VariableStoreHeader + VariableStoreHeader->Size); + IndexTable->StartPtr = GetStartPointer (VariableStoreHeader); + IndexTable->EndPtr = GetEndPointer (VariableStoreHeader); // // Start Pointers for the variable. @@ -426,9 +612,9 @@ Returns: // // Get data size // - VarDataSize = DATASIZE_OF_VARIABLE (Variable.CurrPtr); + VarDataSize = DataSizeOfVariable (Variable.CurrPtr); if (*DataSize >= VarDataSize) { - (*PeiServices)->CopyMem (Data, GET_VARIABLE_DATA_PTR (Variable.CurrPtr), VarDataSize); + (*PeiServices)->CopyMem (Data, GetVariableDataPtr (Variable.CurrPtr), VarDataSize); if (Attributes != NULL) { *Attributes = Variable.CurrPtr->Attributes; @@ -552,11 +738,11 @@ Returns: while (!(Variable.CurrPtr >= Variable.EndPtr || Variable.CurrPtr == NULL)) { if (IsValidVariableHeader (Variable.CurrPtr)) { if (Variable.CurrPtr->State == VAR_ADDED) { - ASSERT (NAMESIZE_OF_VARIABLE (Variable.CurrPtr) != 0); + ASSERT (NameSizeOfVariable (Variable.CurrPtr) != 0); - VarNameSize = (UINTN) NAMESIZE_OF_VARIABLE (Variable.CurrPtr); + VarNameSize = (UINTN) NameSizeOfVariable (Variable.CurrPtr); if (VarNameSize <= *VariableNameSize) { - (*PeiServices)->CopyMem (VariableName, GET_VARIABLE_NAME_PTR (Variable.CurrPtr), VarNameSize); + (*PeiServices)->CopyMem (VariableName, GetVariableNamePtr (Variable.CurrPtr), VarNameSize); (*PeiServices)->CopyMem (VendorGuid, &Variable.CurrPtr->VendorGuid, sizeof (EFI_GUID)); diff --git a/IntelFrameworkModulePkg/Universal/VariablePei/Variable.h b/IntelFrameworkModulePkg/Universal/VariablePei/Variable.h index 2f586c6f4a..0e37be5292 100644 --- a/IntelFrameworkModulePkg/Universal/VariablePei/Variable.h +++ b/IntelFrameworkModulePkg/Universal/VariablePei/Variable.h @@ -44,27 +44,6 @@ Abstract: #define HEADER_ALIGN(Header) (((UINTN) (Header) + HEADER_ALIGNMENT - 1) & (~(HEADER_ALIGNMENT - 1))) -#define NAMESIZE_OF_VARIABLE(Variable) \ - ((((Variable)->DataSize == (UINT32) -1) || \ - ((Variable)->Attributes == (UINT32) -1) || \ - ((Variable)->NameSize == (UINT32) -1)) ? \ - 0 : \ - (Variable)->NameSize \ - ) - -#define DATASIZE_OF_VARIABLE(Variable) \ - ((((Variable)->DataSize == (UINT32) -1) || \ - ((Variable)->Attributes == (UINT32) -1) || \ - ((Variable)->NameSize == (UINT32) -1)) ? \ - 0 : \ - (Variable)->DataSize \ - ) - -#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER)) - -#define GET_VARIABLE_DATA_PTR(a) \ - (UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (a) + NAMESIZE_OF_VARIABLE(a) + GET_PAD_SIZE (NAMESIZE_OF_VARIABLE(a))) - typedef struct { VARIABLE_HEADER *CurrPtr; VARIABLE_HEADER *EndPtr; diff --git a/MdeModulePkg/Include/VariableFormat.h b/MdeModulePkg/Include/VariableFormat.h index 431f01bbb5..bdc33ecb54 100644 --- a/MdeModulePkg/Include/VariableFormat.h +++ b/MdeModulePkg/Include/VariableFormat.h @@ -60,7 +60,9 @@ typedef enum { // #define VAR_IN_DELETED_TRANSITION 0xfe // Variable is in obsolete transistion #define VAR_DELETED 0xfd // Variable is obsolete -#define VAR_ADDED 0x7f // Variable has been completely added +#define VAR_HEADER_VALID_ONLY 0x7f // Variable header has been valid +#define VAR_ADDED 0x3f // Variable has been completely added + // #define IS_VARIABLE_STATE(_c, _Mask) (BOOLEAN) (((~_c) & (~_Mask)) != 0) #pragma pack(1) diff --git a/MdeModulePkg/Universal/Variable/Pei/Variable.c b/MdeModulePkg/Universal/Variable/Pei/Variable.c index d1165e1fe5..92e690724d 100644 --- a/MdeModulePkg/Universal/Variable/Pei/Variable.c +++ b/MdeModulePkg/Universal/Variable/Pei/Variable.c @@ -120,29 +120,6 @@ Returns: return (VARIABLE_HEADER *) HEADER_ALIGN ((UINTN) VarStoreHeader + VarStoreHeader->Size); } -STATIC -VARIABLE_HEADER * -GetNextVariablePtr ( - IN VARIABLE_HEADER *Variable - ) -/*++ - -Routine Description: - - This code checks if variable header is valid or not. - -Arguments: - Variable Pointer to the Variable Header. - -Returns: - TRUE Variable header is valid. - FALSE Variable header is not valid. - ---*/ -{ - return (VARIABLE_HEADER *) HEADER_ALIGN ((UINTN) GET_VARIABLE_DATA_PTR (Variable) + DATASIZE_OF_VARIABLE (Variable) + GET_PAD_SIZE (DATASIZE_OF_VARIABLE (Variable))); -} - STATIC BOOLEAN EFIAPI @@ -171,6 +148,159 @@ Returns: return TRUE; } + +UINTN +NameSizeOfVariable ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the size of name of variable. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + UINTN Size of variable in bytes + +--*/ +{ + if (Variable->State == (UINT8) (-1) || + Variable->DataSize == (UINT32) -1 || + Variable->NameSize == (UINT32) -1 || + Variable->Attributes == (UINT32) -1) { + return 0; + } + return (UINTN) Variable->NameSize; +} + +UINTN +DataSizeOfVariable ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the size of name of variable. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + UINTN Size of variable in bytes + +--*/ +{ + if (Variable->State == (UINT8) -1 || + Variable->DataSize == (UINT32) -1 || + Variable->NameSize == (UINT32) -1 || + Variable->Attributes == (UINT32) -1) { + return 0; + } + return (UINTN) Variable->DataSize; +} + +CHAR16 * +GetVariableNamePtr ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the pointer to the variable name. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + CHAR16* Pointer to Variable Name + +--*/ +{ + + return (CHAR16 *) (Variable + 1); +} + + +UINT8 * +GetVariableDataPtr ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the pointer to the variable data. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + UINT8* Pointer to Variable Data + +--*/ +{ + UINTN Value; + + // + // Be careful about pad size for alignment + // + Value = (UINTN) GetVariableNamePtr (Variable); + Value += NameSizeOfVariable (Variable); + Value += GET_PAD_SIZE (NameSizeOfVariable (Variable)); + + return (UINT8 *) Value; +} + +VARIABLE_HEADER * +GetNextVariablePtr ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the pointer to the next variable header. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + VARIABLE_HEADER* Pointer to next variable header. + +--*/ +{ + UINTN Value; + + if (!IsValidVariableHeader (Variable)) { + return NULL; + } + + Value = (UINTN) GetVariableDataPtr (Variable); + Value += DataSizeOfVariable (Variable); + Value += GET_PAD_SIZE (DataSizeOfVariable (Variable)); + + // + // Be careful about pad size for alignment + // + return (VARIABLE_HEADER *) HEADER_ALIGN (Value); +} + + STATIC VARIABLE_STORE_STATUS EFIAPI @@ -244,6 +374,8 @@ Returns: --*/ { + VOID *Point; + if (VariableName[0] == 0) { PtrTrack->CurrPtr = Variable; return EFI_SUCCESS; @@ -258,8 +390,9 @@ Returns: (((INT32 *) VendorGuid)[2] == ((INT32 *) &Variable->VendorGuid)[2]) && (((INT32 *) VendorGuid)[3] == ((INT32 *) &Variable->VendorGuid)[3]) ) { - ASSERT (NAMESIZE_OF_VARIABLE (Variable) != 0); - if (!CompareMem (VariableName, GET_VARIABLE_NAME_PTR (Variable), NAMESIZE_OF_VARIABLE (Variable))) { + ASSERT (NameSizeOfVariable (Variable) != 0); + Point = (VOID *) GetVariableNamePtr (Variable); + if (!CompareMem (VariableName, Point, NameSizeOfVariable (Variable))) { PtrTrack->CurrPtr = Variable; return EFI_SUCCESS; } @@ -468,9 +601,9 @@ Returns: // // Get data size // - VarDataSize = DATASIZE_OF_VARIABLE (Variable.CurrPtr); + VarDataSize = DataSizeOfVariable (Variable.CurrPtr); if (*DataSize >= VarDataSize) { - (*PeiServices)->CopyMem (Data, GET_VARIABLE_DATA_PTR (Variable.CurrPtr), VarDataSize); + (*PeiServices)->CopyMem (Data, GetVariableDataPtr (Variable.CurrPtr), VarDataSize); if (Attributes != NULL) { *Attributes = Variable.CurrPtr->Attributes; @@ -544,11 +677,11 @@ Returns: while (!(Variable.CurrPtr >= Variable.EndPtr || Variable.CurrPtr == NULL)) { if (IsValidVariableHeader (Variable.CurrPtr)) { if (Variable.CurrPtr->State == VAR_ADDED) { - ASSERT (NAMESIZE_OF_VARIABLE (Variable.CurrPtr) != 0); + ASSERT (NameSizeOfVariable (Variable.CurrPtr) != 0); - VarNameSize = (UINTN) NAMESIZE_OF_VARIABLE (Variable.CurrPtr); + VarNameSize = (UINTN) NameSizeOfVariable (Variable.CurrPtr); if (VarNameSize <= *VariableNameSize) { - (*PeiServices)->CopyMem (VariableName, GET_VARIABLE_NAME_PTR (Variable.CurrPtr), VarNameSize); + (*PeiServices)->CopyMem (VariableName, GetVariableNamePtr (Variable.CurrPtr), VarNameSize); (*PeiServices)->CopyMem (VariableGuid, &Variable.CurrPtr->VendorGuid, sizeof (EFI_GUID)); diff --git a/MdeModulePkg/Universal/Variable/Pei/Variable.h b/MdeModulePkg/Universal/Variable/Pei/Variable.h index 73e1b7afdb..965f722f38 100644 --- a/MdeModulePkg/Universal/Variable/Pei/Variable.h +++ b/MdeModulePkg/Universal/Variable/Pei/Variable.h @@ -43,27 +43,6 @@ Abstract: #define HEADER_ALIGN(Header) (((UINTN) (Header) + HEADER_ALIGNMENT - 1) & (~(HEADER_ALIGNMENT - 1))) -#define NAMESIZE_OF_VARIABLE(Variable) \ - ((((Variable)->DataSize == (UINT32) -1) || \ - ((Variable)->Attributes == (UINT32) -1) || \ - ((Variable)->NameSize == (UINT32) -1)) ? \ - 0 : \ - (Variable)->NameSize \ - ) - -#define DATASIZE_OF_VARIABLE(Variable) \ - ((((Variable)->DataSize == (UINT32) -1) || \ - ((Variable)->Attributes == (UINT32) -1) || \ - ((Variable)->NameSize == (UINT32) -1)) ? \ - 0 : \ - (Variable)->DataSize \ - ) - -#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER)) - -#define GET_VARIABLE_DATA_PTR(a) \ - (UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (a) + NAMESIZE_OF_VARIABLE(a) + GET_PAD_SIZE (NAMESIZE_OF_VARIABLE(a))) - typedef struct { VARIABLE_HEADER *CurrPtr; VARIABLE_HEADER *EndPtr; diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c index d7cb0cd71c..9ff417230a 100644 --- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c +++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c @@ -367,6 +367,89 @@ Returns: } } + +UINTN +NameSizeOfVariable ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the size of name of variable. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + UINTN Size of variable in bytes + +--*/ +{ + if (Variable->State == (UINT8) (-1) || + Variable->DataSize == (UINT32) -1 || + Variable->NameSize == (UINT32) -1 || + Variable->Attributes == (UINT32) -1) { + return 0; + } + return (UINTN) Variable->NameSize; +} + +UINTN +DataSizeOfVariable ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the size of name of variable. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + UINTN Size of variable in bytes + +--*/ +{ + if (Variable->State == (UINT8) -1 || + Variable->DataSize == (UINT32) -1 || + Variable->NameSize == (UINT32) -1 || + Variable->Attributes == (UINT32) -1) { + return 0; + } + return (UINTN) Variable->DataSize; +} + +CHAR16 * +GetVariableNamePtr ( + IN VARIABLE_HEADER *Variable + ) +/*++ + +Routine Description: + + This code gets the pointer to the variable name. + +Arguments: + + Variable Pointer to the Variable Header. + +Returns: + + CHAR16* Pointer to Variable Name + +--*/ +{ + + return (CHAR16 *) (Variable + 1); +} + UINT8 * GetVariableDataPtr ( IN VARIABLE_HEADER *Variable @@ -387,10 +470,16 @@ Returns: --*/ { + UINTN Value; + // // Be careful about pad size for alignment // - return (UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (Variable) + NAMESIZE_OF_VARIABLE (Variable) + GET_PAD_SIZE (NAMESIZE_OF_VARIABLE (Variable))); + Value = (UINTN) GetVariableNamePtr (Variable); + Value += NameSizeOfVariable (Variable); + Value += GET_PAD_SIZE (NameSizeOfVariable (Variable)); + + return (UINT8 *) Value; } @@ -414,13 +503,20 @@ Returns: --*/ { + UINTN Value; + if (!IsValidVariableHeader (Variable)) { return NULL; } + + Value = (UINTN) GetVariableDataPtr (Variable); + Value += DataSizeOfVariable (Variable); + Value += GET_PAD_SIZE (DataSizeOfVariable (Variable)); + // // Be careful about pad size for alignment // - return (VARIABLE_HEADER *) HEADER_ALIGN (((UINTN) GetVariableDataPtr (Variable) + DATASIZE_OF_VARIABLE (Variable) + GET_PAD_SIZE (DATASIZE_OF_VARIABLE (Variable)))); + return (VARIABLE_HEADER *) HEADER_ALIGN (Value); } VARIABLE_HEADER * @@ -747,6 +843,7 @@ Returns: VARIABLE_HEADER *Variable[2]; VARIABLE_STORE_HEADER *VariableStoreHeader[2]; UINTN Index; + VOID *Point; // // 0: Volatile, 1: Non-Volatile @@ -782,8 +879,10 @@ Returns: return EFI_SUCCESS; } else { if (CompareGuid (VendorGuid, &Variable[Index]->VendorGuid)) { - ASSERT (NAMESIZE_OF_VARIABLE (Variable[Index]) != 0); - if (!CompareMem (VariableName, GET_VARIABLE_NAME_PTR (Variable[Index]), NAMESIZE_OF_VARIABLE (Variable[Index]))) { + Point = (VOID *) GetVariableNamePtr (Variable[Index]); + + ASSERT (NameSizeOfVariable (Variable[Index]) != 0); + if (!CompareMem (VariableName, Point, NameSizeOfVariable (Variable[Index]))) { PtrTrack->CurrPtr = Variable[Index]; PtrTrack->Volatile = (BOOLEAN)(Index == 0); return EFI_SUCCESS; @@ -866,7 +965,7 @@ RuntimeServiceGetVariable ( // // Get data size // - VarDataSize = DATASIZE_OF_VARIABLE (Variable.CurrPtr); + VarDataSize = DataSizeOfVariable (Variable.CurrPtr); ASSERT (VarDataSize != 0); if (*DataSize >= VarDataSize) { @@ -973,13 +1072,13 @@ RuntimeServiceGetNextVariableName ( // if (IsValidVariableHeader (Variable.CurrPtr) && Variable.CurrPtr->State == VAR_ADDED) { if (!(EfiAtRuntime () && !(Variable.CurrPtr->Attributes & EFI_VARIABLE_RUNTIME_ACCESS))) { - VarNameSize = NAMESIZE_OF_VARIABLE (Variable.CurrPtr); + VarNameSize = NameSizeOfVariable (Variable.CurrPtr); ASSERT (VarNameSize != 0); if (VarNameSize <= *VariableNameSize) { CopyMem ( VariableName, - GET_VARIABLE_NAME_PTR (Variable.CurrPtr), + GetVariableNamePtr (Variable.CurrPtr), VarNameSize ); CopyMem ( @@ -1174,7 +1273,7 @@ RuntimeServiceSetVariable ( // If the variable is marked valid and the same data has been passed in // then return to the caller immediately. // - if (DATASIZE_OF_VARIABLE (Variable.CurrPtr) == DataSize && + if (DataSizeOfVariable (Variable.CurrPtr) == DataSize && (CompareMem (Data, GetVariableDataPtr (Variable.CurrPtr), DataSize) == 0)) { UpdateVariableInfo (VariableName, VendorGuid, Volatile, FALSE, TRUE, FALSE, FALSE); @@ -1310,8 +1409,9 @@ RuntimeServiceSetVariable ( // // Three steps // 1. Write variable header - // 2. Write variable data - // 3. Set variable state to valid + // 2. Set variable state to header valid + // 3. Write variable data + // 4. Set variable state to valid // // // Step 1: @@ -1329,9 +1429,27 @@ RuntimeServiceSetVariable ( if (EFI_ERROR (Status)) { goto Done; } + // // Step 2: // + NextVariable->State = VAR_HEADER_VALID_ONLY; + Status = UpdateVariableStore ( + &mVariableModuleGlobal->VariableGlobal, + FALSE, + TRUE, + Instance, + *NonVolatileOffset, + sizeof (VARIABLE_HEADER), + (UINT8 *) NextVariable + ); + + if (EFI_ERROR (Status)) { + goto Done; + } + // + // Step 3: + // Status = UpdateVariableStore ( &mVariableModuleGlobal->VariableGlobal, FALSE, @@ -1346,7 +1464,7 @@ RuntimeServiceSetVariable ( goto Done; } // - // Step 3: + // Step 4: // NextVariable->State = VAR_ADDED; Status = UpdateVariableStore ( diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h index 09a184d478..f8a4e058f5 100644 --- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h +++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h @@ -59,24 +59,6 @@ Abstract: #define HEADER_ALIGN(Header) (((UINTN) (Header) + HEADER_ALIGNMENT - 1) & (~(HEADER_ALIGNMENT - 1))) -#define NAMESIZE_OF_VARIABLE(Variable) \ - ((((Variable)->DataSize == (UINT32) -1) || \ - ((Variable)->Attributes == (UINT32) -1) || \ - ((Variable)->NameSize == (UINT32) -1)) ? \ - 0 : \ - (Variable)->NameSize \ - ) - -#define DATASIZE_OF_VARIABLE(Variable) \ - ((((Variable)->DataSize == (UINT32) -1) || \ - ((Variable)->Attributes == (UINT32) -1) || \ - ((Variable)->NameSize == (UINT32) -1)) ? \ - 0 : \ - (Variable)->DataSize \ - ) - -#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER)) - typedef struct { VARIABLE_HEADER *CurrPtr;