diff options
Diffstat (limited to 'EdkModulePkg/Universal/EmuVariable/RuntimeDxe/EmuVariable.c')
| -rw-r--r-- | EdkModulePkg/Universal/EmuVariable/RuntimeDxe/EmuVariable.c | 849 |
1 files changed, 0 insertions, 849 deletions
diff --git a/EdkModulePkg/Universal/EmuVariable/RuntimeDxe/EmuVariable.c b/EdkModulePkg/Universal/EmuVariable/RuntimeDxe/EmuVariable.c deleted file mode 100644 index f56cf04215..0000000000 --- a/EdkModulePkg/Universal/EmuVariable/RuntimeDxe/EmuVariable.c +++ /dev/null @@ -1,849 +0,0 @@ -/*++
-
-Copyright (c) 2006 - 2007, Intel Corporation
-All rights reserved. This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module Name:
-
- EmuVariable.c
-
-Abstract:
-
-Revision History
-
---*/
-
-#include "Variable.h"
-
-//
-// Don't use module globals after the SetVirtualAddress map is signaled
-//
-ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;
-
-//
-// This is a temperary function which will be removed
-// when EfiAcquireLock in UefiLib can handle the
-// the call in UEFI Runtimer driver in RT phase.
-//
-STATIC
-VOID
-AcquireLockOnlyAtBootTime (
- IN EFI_LOCK *Lock
- )
-{
- if (!EfiAtRuntime ()) {
- EfiAcquireLock (Lock);
- }
-}
-
-//
-// This is a temperary function which will be removed
-// when EfiAcquireLock in UefiLib can handle the
-// the call in UEFI Runtimer driver in RT phase.
-//
-STATIC
-VOID
-ReleaseLockOnlyAtBootTime (
- IN EFI_LOCK *Lock
- )
-{
- if (!EfiAtRuntime ()) {
- EfiReleaseLock (Lock);
- }
-}
-
-STATIC
-UINT8 *
-EFIAPI
-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
-
---*/
-{
- if (Variable->StartId != VARIABLE_DATA) {
- return NULL;
- }
- //
- // Be careful about pad size for alignment
- //
- return (UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (Variable) + Variable->NameSize + GET_PAD_SIZE (Variable->NameSize));
-}
-
-STATIC
-VARIABLE_HEADER *
-EFIAPI
-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.
-
---*/
-{
- VARIABLE_HEADER *VarHeader;
-
- if (Variable->StartId != VARIABLE_DATA) {
- return NULL;
- }
- //
- // Be careful about pad size for alignment
- //
- VarHeader = (VARIABLE_HEADER *) (GetVariableDataPtr (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));
-
- if (VarHeader->StartId != VARIABLE_DATA ||
- (sizeof (VARIABLE_HEADER) + VarHeader->DataSize + VarHeader->NameSize) > MAX_VARIABLE_SIZE
- ) {
- return NULL;
- }
-
- return VarHeader;
-}
-
-STATIC
-VARIABLE_HEADER *
-EFIAPI
-GetEndPointer (
- IN VARIABLE_STORE_HEADER *VolHeader
- )
-/*++
-
-Routine Description:
-
- This code gets the pointer to the last variable memory pointer byte
-
-Arguments:
-
- Variable Pointer to the Variable Header.
-
-Returns:
-
- VARIABLE_HEADER* Pointer to last unavailable Variable Header
-
---*/
-{
- //
- // The end of variable store
- //
- return (VARIABLE_HEADER *) ((UINTN) VolHeader + VolHeader->Size);
-}
-
-STATIC
-EFI_STATUS
-EFIAPI
-FindVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- OUT VARIABLE_POINTER_TRACK *PtrTrack,
- IN VARIABLE_GLOBAL *Global
- )
-/*++
-
-Routine Description:
-
- This code finds variable in storage blocks (Volatile or Non-Volatile)
-
-Arguments:
-
- VariableName Name of the variable to be found
- VendorGuid Vendor GUID to be found.
- PtrTrack Variable Track Pointer structure that contains
- Variable Information.
- Contains the pointer of Variable header.
- Global VARIABLE_GLOBAL pointer
-
-Returns:
-
- EFI STATUS
-
---*/
-{
- VARIABLE_HEADER *Variable[2];
- VARIABLE_STORE_HEADER *VariableStoreHeader[2];
- UINTN Index;
-
- //
- // We aquire the lock at the entry of FindVariable as GetVariable, GetNextVariableName
- // SetVariable all call FindVariable at entry point. Please move "Aquire Lock" to
- // the correct places if this assumption does not hold TRUE anymore.
- //
- AcquireLockOnlyAtBootTime(&Global->VariableServicesLock);
-
- //
- // 0: Non-Volatile, 1: Volatile
- //
- VariableStoreHeader[0] = (VARIABLE_STORE_HEADER *) ((UINTN) Global->NonVolatileVariableBase);
- VariableStoreHeader[1] = (VARIABLE_STORE_HEADER *) ((UINTN) Global->VolatileVariableBase);
-
- //
- // Start Pointers for the variable.
- // Actual Data Pointer where data can be written.
- //
- Variable[0] = (VARIABLE_HEADER *) (VariableStoreHeader[0] + 1);
- Variable[1] = (VARIABLE_HEADER *) (VariableStoreHeader[1] + 1);
-
- if (VariableName[0] != 0 && VendorGuid == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- //
- // Find the variable by walk through non-volatile and volatile variable store
- //
- for (Index = 0; Index < 2; Index++) {
- PtrTrack->StartPtr = (VARIABLE_HEADER *) (VariableStoreHeader[Index] + 1);
- PtrTrack->EndPtr = GetEndPointer (VariableStoreHeader[Index]);
-
- while ((Variable[Index] != NULL) && (Variable[Index] <= GetEndPointer (VariableStoreHeader[Index]))) {
- if (Variable[Index]->StartId == VARIABLE_DATA && Variable[Index]->State == VAR_ADDED) {
- if (!(EfiAtRuntime () && !(Variable[Index]->Attributes & EFI_VARIABLE_RUNTIME_ACCESS))) {
- if (VariableName[0] == 0) {
- PtrTrack->CurrPtr = Variable[Index];
- PtrTrack->Volatile = (BOOLEAN) Index;
- return EFI_SUCCESS;
- } else {
- if (CompareGuid (VendorGuid, &Variable[Index]->VendorGuid)) {
- if (!CompareMem (VariableName, GET_VARIABLE_NAME_PTR (Variable[Index]), Variable[Index]->NameSize)) {
- PtrTrack->CurrPtr = Variable[Index];
- PtrTrack->Volatile = (BOOLEAN) Index;
- return EFI_SUCCESS;
- }
- }
- }
- }
- }
-
- Variable[Index] = GetNextVariablePtr (Variable[Index]);
- }
- }
- PtrTrack->CurrPtr = NULL;
- return EFI_NOT_FOUND;
-}
-
-EFI_STATUS
-EFIAPI
-GetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID * VendorGuid,
- OUT UINT32 *Attributes OPTIONAL,
- IN OUT UINTN *DataSize,
- OUT VOID *Data,
- IN VARIABLE_GLOBAL * Global,
- IN UINT32 Instance
- )
-/*++
-
-Routine Description:
-
- This code finds variable in storage blocks (Volatile or Non-Volatile)
-
-Arguments:
-
- VariableName Name of Variable to be found
- VendorGuid Variable vendor GUID
- Attributes OPTIONAL Attribute value of the variable found
- DataSize Size of Data found. If size is less than the
- data, this value contains the required size.
- Data Data pointer
- Global Pointer to VARIABLE_GLOBAL structure
- Instance Instance of the Firmware Volume.
-
-Returns:
-
- EFI STATUS
-
---*/
-{
- VARIABLE_POINTER_TRACK Variable;
- UINTN VarDataSize;
- EFI_STATUS Status;
-
- if (VariableName == NULL || VendorGuid == NULL || DataSize == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- //
- // Find existing variable
- //
- Status = FindVariable (VariableName, VendorGuid, &Variable, Global);
-
- if (Variable.CurrPtr == NULL || EFI_ERROR (Status)) {
- goto Done;
- }
- //
- // Get data size
- //
- VarDataSize = Variable.CurrPtr->DataSize;
- if (*DataSize >= VarDataSize) {
- if (Data == NULL) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- CopyMem (Data, GetVariableDataPtr (Variable.CurrPtr), VarDataSize);
- if (Attributes != NULL) {
- *Attributes = Variable.CurrPtr->Attributes;
- }
-
- *DataSize = VarDataSize;
- Status = EFI_SUCCESS;
- goto Done;
- } else {
- *DataSize = VarDataSize;
- Status = EFI_BUFFER_TOO_SMALL;
- goto Done;
- }
-
-Done:
- ReleaseLockOnlyAtBootTime (&Global->VariableServicesLock);
- return Status;
-}
-
-EFI_STATUS
-EFIAPI
-GetNextVariableName (
- IN OUT UINTN *VariableNameSize,
- IN OUT CHAR16 *VariableName,
- IN OUT EFI_GUID *VendorGuid,
- IN VARIABLE_GLOBAL *Global,
- IN UINT32 Instance
- )
-/*++
-
-Routine Description:
-
- This code Finds the Next available variable
-
-Arguments:
-
- VariableNameSize Size of the variable
- VariableName Pointer to variable name
- VendorGuid Variable Vendor Guid
- Global VARIABLE_GLOBAL structure pointer.
- Instance FV instance
-
-Returns:
-
- EFI STATUS
-
---*/
-{
- VARIABLE_POINTER_TRACK Variable;
- UINTN VarNameSize;
- EFI_STATUS Status;
-
- if (VariableNameSize == NULL || VariableName == NULL || VendorGuid == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = FindVariable (VariableName, VendorGuid, &Variable, Global);
-
- if (Variable.CurrPtr == NULL || EFI_ERROR (Status)) {
- goto Done;
- }
-
- while (TRUE) {
- if (VariableName[0] != 0) {
- //
- // If variable name is not NULL, get next variable
- //
- Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);
- }
- //
- // If both volatile and non-volatile variable store are parsed,
- // return not found
- //
- if (Variable.CurrPtr >= Variable.EndPtr || Variable.CurrPtr == NULL) {
- Variable.Volatile = (BOOLEAN) (Variable.Volatile ^ ((BOOLEAN) 0x1));
- if (Variable.Volatile) {
- Variable.StartPtr = (VARIABLE_HEADER *) ((UINTN) (Global->VolatileVariableBase + sizeof (VARIABLE_STORE_HEADER)));
- Variable.EndPtr = (VARIABLE_HEADER *) GetEndPointer ((VARIABLE_STORE_HEADER *) ((UINTN) Global->VolatileVariableBase));
- } else {
- Status = EFI_NOT_FOUND;
- goto Done;
- }
-
- Variable.CurrPtr = Variable.StartPtr;
- if (Variable.CurrPtr->StartId != VARIABLE_DATA) {
- continue;
- }
- }
- //
- // Variable is found
- //
- if (Variable.CurrPtr->StartId == VARIABLE_DATA && Variable.CurrPtr->State == VAR_ADDED) {
- if (!(EfiAtRuntime () && !(Variable.CurrPtr->Attributes & EFI_VARIABLE_RUNTIME_ACCESS))) {
- VarNameSize = Variable.CurrPtr->NameSize;
- if (VarNameSize <= *VariableNameSize) {
- CopyMem (
- VariableName,
- GET_VARIABLE_NAME_PTR (Variable.CurrPtr),
- VarNameSize
- );
- CopyMem (
- VendorGuid,
- &Variable.CurrPtr->VendorGuid,
- sizeof (EFI_GUID)
- );
- Status = EFI_SUCCESS;
- } else {
- Status = EFI_BUFFER_TOO_SMALL;
- }
-
- *VariableNameSize = VarNameSize;
- goto Done;
- }
- }
- }
-
-Done:
- ReleaseLockOnlyAtBootTime (&Global->VariableServicesLock);
- return Status;
-
-}
-
-EFI_STATUS
-EFIAPI
-SetVariable (
- IN CHAR16 *VariableName,
- IN EFI_GUID *VendorGuid,
- IN UINT32 Attributes,
- IN UINTN DataSize,
- IN VOID *Data,
- IN VARIABLE_GLOBAL *Global,
- IN UINTN *VolatileOffset,
- IN UINTN *NonVolatileOffset,
- IN UINT32 Instance
- )
-/*++
-
-Routine Description:
-
- This code sets variable in storage blocks (Volatile or Non-Volatile)
-
-Arguments:
-
- VariableName Name of Variable to be found
- VendorGuid Variable vendor GUID
- Attributes Attribute value of the variable found
- DataSize Size of Data found. If size is less than the
- data, this value contains the required size.
- Data Data pointer
- Global Pointer to VARIABLE_GLOBAL structure
- VolatileOffset The offset of last volatile variable
- NonVolatileOffset The offset of last non-volatile variable
- Instance Instance of the Firmware Volume.
-
-Returns:
-
- EFI STATUS
-
---*/
-{
- VARIABLE_POINTER_TRACK Variable;
- EFI_STATUS Status;
- VARIABLE_HEADER *NextVariable;
- UINTN VarNameSize;
- UINTN VarNameOffset;
- UINTN VarDataOffset;
- UINTN VarSize;
-
- if (VariableName == NULL || VariableName[0] == 0 || VendorGuid == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = FindVariable (VariableName, VendorGuid, &Variable, Global);
-
- if (Status == EFI_INVALID_PARAMETER) {
- goto Done;
- } else if (!EFI_ERROR (Status) && Variable.Volatile && EfiAtRuntime()) {
- //
- // If EfiAtRuntime and the variable is Volatile and Runtime Access,
- // the volatile is ReadOnly, and SetVariable should be aborted and
- // return EFI_WRITE_PROTECTED.
- //
- Status = EFI_WRITE_PROTECTED;
- goto Done;
- } else if (sizeof (VARIABLE_HEADER) + (StrSize (VariableName) + DataSize) > MAX_VARIABLE_SIZE) {
- //
- // The size of the VariableName, including the Unicode Null in bytes plus
- // the DataSize is limited to maximum size of MAX_VARIABLE_SIZE (1024) bytes.
- //
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- } else if ((Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == EFI_VARIABLE_RUNTIME_ACCESS
- ) {
- //
- // Make sure if runtime bit is set, boot service bit is set also
- //
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- } else if (EfiAtRuntime () && Attributes && !(Attributes & EFI_VARIABLE_RUNTIME_ACCESS)) {
- //
- // Runtime but Attribute is not Runtime
- //
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- } else if (EfiAtRuntime () && Attributes && !(Attributes & EFI_VARIABLE_NON_VOLATILE)) {
- //
- // Cannot set volatile variable in Runtime
- //
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- } else if (DataSize == 0 || (Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == 0) {
- //
- // Setting a data variable with no access, or zero DataSize attributes
- // specified causes it to be deleted.
- //
- if (!EFI_ERROR (Status)) {
- Variable.CurrPtr->State &= VAR_DELETED;
- Status = EFI_SUCCESS;
- goto Done;
- }
-
- Status = EFI_NOT_FOUND;
- goto Done;
- } else {
- if (!EFI_ERROR (Status)) {
- //
- // If the variable is marked valid and the same data has been passed in
- // then return to the caller immediately.
- //
- if (Variable.CurrPtr->DataSize == DataSize &&
- !CompareMem (Data, GetVariableDataPtr (Variable.CurrPtr), DataSize)
- ) {
- Status = EFI_SUCCESS;
- goto Done;
- } else if (Variable.CurrPtr->State == VAR_ADDED) {
- //
- // Mark the old variable as in delete transition
- //
- Variable.CurrPtr->State &= VAR_IN_DELETED_TRANSITION;
- }
- }
- //
- // Create a new variable and copy the data.
- //
- VarNameOffset = sizeof (VARIABLE_HEADER);
- VarNameSize = StrSize (VariableName);
- VarDataOffset = VarNameOffset + VarNameSize + GET_PAD_SIZE (VarNameSize);
- VarSize = VarDataOffset + DataSize + GET_PAD_SIZE (DataSize);
-
- if (Attributes & EFI_VARIABLE_NON_VOLATILE) {
- if ((UINT32) (VarSize +*NonVolatileOffset) >
- ((VARIABLE_STORE_HEADER *) ((UINTN) (Global->NonVolatileVariableBase)))->Size
- ) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
-
- NextVariable = (VARIABLE_HEADER *) (UINT8 *) (*NonVolatileOffset + (UINTN) Global->NonVolatileVariableBase);
- *NonVolatileOffset = *NonVolatileOffset + VarSize;
- } else {
- if (EfiAtRuntime ()) {
- Status = EFI_INVALID_PARAMETER;
- goto Done;
- }
-
- if ((UINT32) (VarSize +*VolatileOffset) >
- ((VARIABLE_STORE_HEADER *) ((UINTN) (Global->VolatileVariableBase)))->Size
- ) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Done;
- }
-
- NextVariable = (VARIABLE_HEADER *) (UINT8 *) (*VolatileOffset + (UINTN) Global->VolatileVariableBase);
- *VolatileOffset = *VolatileOffset + VarSize;
- }
-
- NextVariable->StartId = VARIABLE_DATA;
- NextVariable->Attributes = Attributes;
- NextVariable->State = VAR_ADDED;
- NextVariable->Reserved = 0;
-
- //
- // There will be pad bytes after Data, the NextVariable->NameSize and
- // NextVariable->NameSize should not include pad size so that variable
- // service can get actual size in GetVariable
- //
- NextVariable->NameSize = (UINT32)VarNameSize;
- NextVariable->DataSize = (UINT32)DataSize;
-
- CopyMem (&NextVariable->VendorGuid, VendorGuid, sizeof (EFI_GUID));
- CopyMem (
- (UINT8 *) ((UINTN) NextVariable + VarNameOffset),
- VariableName,
- VarNameSize
- );
- CopyMem (
- (UINT8 *) ((UINTN) NextVariable + VarDataOffset),
- Data,
- DataSize
- );
-
- //
- // Mark the old variable as deleted
- //
- if (!EFI_ERROR (Status)) {
- Variable.CurrPtr->State &= VAR_DELETED;
- }
- }
-
- Status = EFI_SUCCESS;
-Done:
- ReleaseLockOnlyAtBootTime (&Global->VariableServicesLock);
- return Status;
-}
-
-EFI_STATUS
-EFIAPI
-QueryVariableInfo (
- IN UINT32 Attributes,
- OUT UINT64 *MaximumVariableStorageSize,
- OUT UINT64 *RemainingVariableStorageSize,
- OUT UINT64 *MaximumVariableSize,
- IN VARIABLE_GLOBAL *Global,
- IN UINT32 Instance
- )
-/*++
-
-Routine Description:
-
- This code returns information about the EFI variables.
-
-Arguments:
-
- Attributes Attributes bitmask to specify the type of variables
- on which to return information.
- MaximumVariableStorageSize Pointer to the maximum size of the storage space available
- for the EFI variables associated with the attributes specified.
- RemainingVariableStorageSize Pointer to the remaining size of the storage space available
- for the EFI variables associated with the attributes specified.
- MaximumVariableSize Pointer to the maximum size of the individual EFI variables
- associated with the attributes specified.
- Global Pointer to VARIABLE_GLOBAL structure.
- Instance Instance of the Firmware Volume.
-
-Returns:
-
- EFI STATUS
- EFI_INVALID_PARAMETER - An invalid combination of attribute bits was supplied.
- EFI_SUCCESS - Query successfully.
- EFI_UNSUPPORTED - The attribute is not supported on this platform.
-
---*/
-{
- VARIABLE_HEADER *Variable;
- VARIABLE_HEADER *NextVariable;
- UINT64 VariableSize;
- VARIABLE_STORE_HEADER *VariableStoreHeader;
-
- if(MaximumVariableStorageSize == NULL || RemainingVariableStorageSize == NULL || MaximumVariableSize == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if((Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS)) == 0) {
- //
- // Make sure the Attributes combination is supported by the platform.
- //
- return EFI_UNSUPPORTED;
- } else if ((Attributes & (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)) == EFI_VARIABLE_RUNTIME_ACCESS) {
- //
- // Make sure if runtime bit is set, boot service bit is set also.
- //
- return EFI_INVALID_PARAMETER;
- } else if (EfiAtRuntime () && !(Attributes & EFI_VARIABLE_RUNTIME_ACCESS)) {
- //
- // Make sure RT Attribute is set if we are in Runtime phase.
- //
- return EFI_INVALID_PARAMETER;
- } else if (EfiAtRuntime () && Attributes && !(Attributes & EFI_VARIABLE_NON_VOLATILE)) {
- //
- // Cannot Query volatile variable in Runtime
- //
- return EFI_INVALID_PARAMETER;
- }
-
- AcquireLockOnlyAtBootTime(&Global->VariableServicesLock);
-
- if((Attributes & EFI_VARIABLE_NON_VOLATILE) == 0) {
- //
- // Query is Volatile related.
- //
- VariableStoreHeader = (VARIABLE_STORE_HEADER *) ((UINTN) Global->VolatileVariableBase);
- } else {
- //
- // Query is Non-Volatile related.
- //
- VariableStoreHeader = (VARIABLE_STORE_HEADER *) ((UINTN) Global->NonVolatileVariableBase);
- }
-
- //
- // Now let's fill *MaximumVariableStorageSize *RemainingVariableStorageSize
- // with the storage size (excluding the storage header size)
- //
- *MaximumVariableStorageSize = VariableStoreHeader->Size - sizeof (VARIABLE_STORE_HEADER);
- *RemainingVariableStorageSize = VariableStoreHeader->Size - sizeof (VARIABLE_STORE_HEADER);
-
- //
- // Let *MaximumVariableSize be MAX_VARIABLE_SIZE
- //
- *MaximumVariableSize = MAX_VARIABLE_SIZE;
-
- //
- // Point to the starting address of the variables.
- //
- Variable = (VARIABLE_HEADER *) (VariableStoreHeader + 1);
-
- //
- // Now walk through the related variable store.
- //
- while (Variable < GetEndPointer (VariableStoreHeader)) {
- if (Variable->StartId != VARIABLE_DATA) {
- break;
- }
-
- NextVariable = (VARIABLE_HEADER *) (GetVariableDataPtr (Variable) + Variable->DataSize + GET_PAD_SIZE (Variable->DataSize));
- VariableSize = (UINT64) (UINTN) NextVariable - (UINT64) (UINTN) Variable;
-
- if (Variable->State == VAR_ADDED) {
- *RemainingVariableStorageSize -= VariableSize;
- }
-
- //
- // Go to the next one.
- //
- Variable = NextVariable;
- }
-
- ReleaseLockOnlyAtBootTime (&Global->VariableServicesLock);
- return EFI_SUCCESS;
-}
-
-STATIC
-EFI_STATUS
-EFIAPI
-InitializeVariableStore (
- OUT EFI_PHYSICAL_ADDRESS *VariableBase,
- OUT UINTN *LastVariableOffset
- )
-/*++
-
-Routine Description:
- This function initializes variable store
-
-Arguments:
-
-Returns:
-
---*/
-{
- VARIABLE_STORE_HEADER *VariableStore;
-
- //
- // Allocate memory for volatile variable store
- //
- VariableStore = (VARIABLE_STORE_HEADER *) AllocateRuntimePool (
- VARIABLE_STORE_SIZE
- );
- if (NULL == VariableStore) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- SetMem (VariableStore, VARIABLE_STORE_SIZE, 0xff);
-
- //
- // Variable Specific Data
- //
- *VariableBase = (EFI_PHYSICAL_ADDRESS) (UINTN) VariableStore;
- *LastVariableOffset = sizeof (VARIABLE_STORE_HEADER);
-
- VariableStore->Signature = VARIABLE_STORE_SIGNATURE;
- VariableStore->Size = VARIABLE_STORE_SIZE;
- VariableStore->Format = VARIABLE_STORE_FORMATTED;
- VariableStore->State = VARIABLE_STORE_HEALTHY;
- VariableStore->Reserved = 0;
- VariableStore->Reserved1 = 0;
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VariableCommonInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-/*++
-
-Routine Description:
- This function does common initialization for variable services
-
-Arguments:
-
-Returns:
-
---*/
-{
- EFI_STATUS Status;
-
- //
- // Allocate memory for mVariableModuleGlobal
- //
- mVariableModuleGlobal = (ESAL_VARIABLE_GLOBAL *) AllocateRuntimePool (
- sizeof (ESAL_VARIABLE_GLOBAL)
- );
- if (NULL == mVariableModuleGlobal) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- EfiInitializeLock(&mVariableModuleGlobal->VariableGlobal[Physical].VariableServicesLock, TPL_NOTIFY);
-
- //
- // Intialize volatile variable store
- //
- Status = InitializeVariableStore (
- &mVariableModuleGlobal->VariableGlobal[Physical].VolatileVariableBase,
- &mVariableModuleGlobal->VolatileLastVariableOffset
- );
-
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Intialize non volatile variable store
- //
- Status = InitializeVariableStore (
- &mVariableModuleGlobal->VariableGlobal[Physical].NonVolatileVariableBase,
- &mVariableModuleGlobal->NonVolatileLastVariableOffset
- );
-
- return Status;
-}
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