diff options
| author | qwang12 <qwang12@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-07-06 10:39:15 +0000 |
|---|---|---|
| committer | qwang12 <qwang12@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-07-06 10:39:15 +0000 |
| commit | f80315c3c9856fe9ef4f53e94fbf1a417b36d144 (patch) | |
| tree | fd1c85ed194faebfb0f94951c5fc8c4ab405c875 /MdeModulePkg/Universal | |
| parent | 46913d4de41ad995eb226884fc9d86fecc33fe9c (diff) | |
| download | edk2-f80315c3c9856fe9ef4f53e94fbf1a417b36d144.zip edk2-f80315c3c9856fe9ef4f53e94fbf1a417b36d144.tar.gz edk2-f80315c3c9856fe9ef4f53e94fbf1a417b36d144.tar.bz2 | |
Add in EmuVariableRuntimeDxe
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3123 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Universal')
8 files changed, 1773 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariable.c b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariable.c new file mode 100644 index 0000000..f56cf04 --- /dev/null +++ b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariable.c @@ -0,0 +1,849 @@ +/*++
+
+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;
+}
diff --git a/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariable.infa b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariable.infa new file mode 100644 index 0000000..a22d48b --- /dev/null +++ b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariable.infa @@ -0,0 +1,106 @@ +#/** @file
+# Emulation Variable for EFI_RUNTIME_SERVICES.
+#
+# This module provides three EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName
+# 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.
+#
+#
+#**/
+
+################################################################################
+#
+# Defines Section - statements that will be processed to create a Makefile.
+#
+################################################################################
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = EmuVariable
+ FILE_GUID = CBD2E4D5-7068-4FF5-B866-9822B4AD8D61
+ MODULE_TYPE = DXE_RUNTIME_DRIVER
+ VERSION_STRING = 1.0
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+ ENTRY_POINT = VariableServiceInitialize
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 EBC
+#
+
+################################################################################
+#
+# Sources Section - list of files that are required for the build to succeed.
+#
+################################################################################
+
+[Sources.common]
+ InitVariable.c
+ EmuVariable.c
+ Variable.h
+
+
+################################################################################
+#
+# Package Dependency Section - list of Package files that are required for
+# this module.
+#
+################################################################################
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+
+
+################################################################################
+#
+# Library Class Section - list of Library Classes that are required for
+# this module.
+#
+################################################################################
+
+[LibraryClasses]
+ BaseLib
+ UefiLib
+ UefiBootServicesTableLib
+ UefiDriverEntryPoint
+ UefiRuntimeLib
+ DebugLib
+ MemoryAllocationLib
+ BaseMemoryLib
+
+
+################################################################################
+#
+# Protocol C Name Section - list of Protocol and Protocol Notify C Names
+# that this module uses or produces.
+#
+################################################################################
+
+[Protocols.IA32]
+ gEfiVariableArchProtocolGuid # PROTOCOL ALWAYS_PRODUCED
+ gEfiVariableWriteArchProtocolGuid # PROTOCOL ALWAYS_PRODUCED
+
+[Protocols.X64]
+ gEfiVariableArchProtocolGuid # PROTOCOL ALWAYS_PRODUCED
+ gEfiVariableWriteArchProtocolGuid # PROTOCOL ALWAYS_PRODUCED
+
+
+################################################################################
+#
+# Dependency Expression Section - list of Dependency expressions that are required for
+# this module.
+#
+################################################################################
+
+[Depex]
+ TRUE
+
diff --git a/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariable.msa b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariable.msa new file mode 100644 index 0000000..6e769aa --- /dev/null +++ b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariable.msa @@ -0,0 +1,75 @@ +<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+ <MsaHeader>
+ <ModuleName>EmuVariable</ModuleName>
+ <ModuleType>DXE_RUNTIME_DRIVER</ModuleType>
+ <GuidValue>CBD2E4D5-7068-4FF5-B866-9822B4AD8D61</GuidValue>
+ <Version>1.0</Version>
+ <Abstract>Emulation Variable for EFI_RUNTIME_SERVICES.</Abstract>
+ <Description>This module provides three EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName</Description>
+ <Copyright>Copyright (c) 2006 - 2007, Intel Corporation</Copyright>
+ <License>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.</License>
+ <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION 0x00000052</Specification>
+ </MsaHeader>
+ <ModuleDefinitions>
+ <SupportedArchitectures>IA32 X64 EBC</SupportedArchitectures>
+ <BinaryModule>false</BinaryModule>
+ <OutputFileBasename>EmuVariable</OutputFileBasename>
+ </ModuleDefinitions>
+ <LibraryClassDefinitions>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>BaseMemoryLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>MemoryAllocationLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>DebugLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>UefiRuntimeLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>UefiDriverEntryPoint</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>UefiBootServicesTableLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>UefiLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>BaseLib</Keyword>
+ </LibraryClass>
+ </LibraryClassDefinitions>
+ <SourceFiles>
+ <Filename>Variable.h</Filename>
+ <Filename>EmuVariable.c</Filename>
+ <Filename>EmuVariable.dxs</Filename>
+ <Filename>InitVariable.c</Filename>
+ </SourceFiles>
+ <PackageDependencies>
+ <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+ <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+ </PackageDependencies>
+ <Protocols>
+ <Protocol Usage="ALWAYS_PRODUCED" SupArchList="IA32 X64">
+ <ProtocolCName>gEfiVariableWriteArchProtocolGuid</ProtocolCName>
+ </Protocol>
+ <Protocol Usage="ALWAYS_PRODUCED" SupArchList="IA32 X64">
+ <ProtocolCName>gEfiVariableArchProtocolGuid</ProtocolCName>
+ </Protocol>
+ </Protocols>
+ <Externs>
+ <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+ <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+ <Extern>
+ <ModuleEntryPoint>VariableServiceInitialize</ModuleEntryPoint>
+ </Extern>
+ </Externs>
+</ModuleSurfaceArea>
\ No newline at end of file diff --git a/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariableIpf.inf b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariableIpf.inf new file mode 100644 index 0000000..b80c814 --- /dev/null +++ b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariableIpf.inf @@ -0,0 +1,102 @@ +#/** @file
+# Emulation Variable for EFI_RUNTIME_SERVICES.
+#
+# This module provides three EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName
+# 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.
+#
+#
+#**/
+
+################################################################################
+#
+# Defines Section - statements that will be processed to create a Makefile.
+#
+################################################################################
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = EmuVariableIpf
+ FILE_GUID = A46320E8-0514-489a-BC4E-481624D9CE33
+ MODULE_TYPE = DXE_SAL_DRIVER
+ VERSION_STRING = 1.0
+ EDK_RELEASE_VERSION = 0x00020000
+ EFI_SPECIFICATION_VERSION = 0x00020000
+
+ ENTRY_POINT = VariableServiceInitialize
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IPF
+#
+
+################################################################################
+#
+# Sources Section - list of files that are required for the build to succeed.
+#
+################################################################################
+
+[Sources.common]
+ Ipf/InitVariable.c
+ EmuVariable.c
+ Variable.h
+
+
+################################################################################
+#
+# Package Dependency Section - list of Package files that are required for
+# this module.
+#
+################################################################################
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+
+
+################################################################################
+#
+# Library Class Section - list of Library Classes that are required for
+# this module.
+#
+################################################################################
+
+[LibraryClasses]
+ ExtendedSalLib
+ BaseLib
+ UefiLib
+ UefiBootServicesTableLib
+ UefiDriverEntryPoint
+ UefiRuntimeLib
+ DebugLib
+ MemoryAllocationLib
+ BaseMemoryLib
+
+
+################################################################################
+#
+# Protocol C Name Section - list of Protocol and Protocol Notify C Names
+# that this module uses or produces.
+#
+################################################################################
+
+[Protocols]
+ gEfiExtendedSalVariableServicesProtocolGuid # PROTOCOL ALWAYS_CONSUMED
+
+
+################################################################################
+#
+# Dependency Expression Section - list of Dependency expressions that are required for
+# this module.
+#
+################################################################################
+
+[Depex]
+ TRUE
+
diff --git a/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariableIpf.msa b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariableIpf.msa new file mode 100644 index 0000000..d4102d2 --- /dev/null +++ b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/EmuVariableIpf.msa @@ -0,0 +1,75 @@ +<?xml version="1.0" encoding="UTF-8"?>
+<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+ <MsaHeader>
+ <ModuleName>EmuVariableIpf</ModuleName>
+ <ModuleType>DXE_SAL_DRIVER</ModuleType>
+ <GuidValue>A46320E8-0514-489a-BC4E-481624D9CE33</GuidValue>
+ <Version>1.0</Version>
+ <Abstract>Emulation Variable for EFI_RUNTIME_SERVICES.</Abstract>
+ <Description>This module provides three EFI_RUNTIME_SERVICES: SetVariable, GetVariable, GetNextVariableName</Description>
+ <Copyright>Copyright (c) 2006 - 2007, Intel Corporation</Copyright>
+ <License>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.</License>
+ <Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION 0x00000052</Specification>
+ </MsaHeader>
+ <ModuleDefinitions>
+ <SupportedArchitectures>IPF</SupportedArchitectures>
+ <BinaryModule>false</BinaryModule>
+ <OutputFileBasename>EmuVariableIpf</OutputFileBasename>
+ </ModuleDefinitions>
+ <LibraryClassDefinitions>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>BaseMemoryLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>MemoryAllocationLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>DebugLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>UefiRuntimeLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>UefiDriverEntryPoint</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>UefiBootServicesTableLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>UefiLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>BaseLib</Keyword>
+ </LibraryClass>
+ <LibraryClass Usage="ALWAYS_CONSUMED">
+ <Keyword>ExtendedSalLib</Keyword>
+ </LibraryClass>
+ </LibraryClassDefinitions>
+ <SourceFiles>
+ <Filename>Variable.h</Filename>
+ <Filename>EmuVariable.c</Filename>
+ <Filename>EmuVariable.dxs</Filename>
+ <Filename>Ipf/InitVariable.c</Filename>
+ </SourceFiles>
+ <PackageDependencies>
+ <Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
+ <Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
+ </PackageDependencies>
+ <Protocols>
+ <Protocol Usage="ALWAYS_CONSUMED">
+ <ProtocolCName>gEfiExtendedSalVariableServicesProtocolGuid</ProtocolCName>
+ </Protocol>
+ </Protocols>
+ <Externs>
+ <Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
+ <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
+ <Extern>
+ <ModuleEntryPoint>VariableServiceInitialize</ModuleEntryPoint>
+ </Extern>
+ </Externs>
+</ModuleSurfaceArea>
\ No newline at end of file diff --git a/MdeModulePkg/Universal/EmuVariableRuntimeDxe/InitVariable.c b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/InitVariable.c new file mode 100644 index 0000000..efff41c --- /dev/null +++ b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/InitVariable.c @@ -0,0 +1,214 @@ +/*++
+
+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:
+
+ InitVariable.c
+
+Abstract:
+
+Revision History
+
+--*/
+
+#include "Variable.h"
+
+//
+// Don't use module globals after the SetVirtualAddress map is signaled
+//
+extern ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;
+
+EFI_STATUS
+EFIAPI
+RuntimeServiceGetVariable (
+ IN CHAR16 *VariableName,
+ IN EFI_GUID * VendorGuid,
+ OUT UINT32 *Attributes OPTIONAL,
+ IN OUT UINTN *DataSize,
+ OUT VOID *Data
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ return GetVariable (
+ VariableName,
+ VendorGuid,
+ Attributes OPTIONAL,
+ DataSize,
+ Data,
+ &mVariableModuleGlobal->VariableGlobal[Physical],
+ mVariableModuleGlobal->FvbInstance
+ );
+}
+
+EFI_STATUS
+EFIAPI
+RuntimeServiceGetNextVariableName (
+ IN OUT UINTN *VariableNameSize,
+ IN OUT CHAR16 *VariableName,
+ IN OUT EFI_GUID *VendorGuid
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ return GetNextVariableName (
+ VariableNameSize,
+ VariableName,
+ VendorGuid,
+ &mVariableModuleGlobal->VariableGlobal[Physical],
+ mVariableModuleGlobal->FvbInstance
+ );
+}
+
+EFI_STATUS
+EFIAPI
+RuntimeServiceSetVariable (
+ IN CHAR16 *VariableName,
+ IN EFI_GUID *VendorGuid,
+ IN UINT32 Attributes,
+ IN UINTN DataSize,
+ IN VOID *Data
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ return SetVariable (
+ VariableName,
+ VendorGuid,
+ Attributes,
+ DataSize,
+ Data,
+ &mVariableModuleGlobal->VariableGlobal[Physical],
+ &mVariableModuleGlobal->VolatileLastVariableOffset,
+ &mVariableModuleGlobal->NonVolatileLastVariableOffset,
+ mVariableModuleGlobal->FvbInstance
+ );
+}
+
+EFI_STATUS
+EFIAPI
+RuntimeServiceQueryVariableInfo (
+ IN UINT32 Attributes,
+ OUT UINT64 *MaximumVariableStorageSize,
+ OUT UINT64 *RemainingVariableStorageSize,
+ OUT UINT64 *MaximumVariableSize
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ return QueryVariableInfo (
+ Attributes,
+ MaximumVariableStorageSize,
+ RemainingVariableStorageSize,
+ MaximumVariableSize,
+ &mVariableModuleGlobal->VariableGlobal[Physical],
+ mVariableModuleGlobal->FvbInstance
+ );
+}
+
+VOID
+EFIAPI
+VariableClassAddressChangeEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ EfiConvertPointer (
+ 0x0,
+ (VOID **) &mVariableModuleGlobal->VariableGlobal[Physical].NonVolatileVariableBase
+ );
+ EfiConvertPointer (
+ 0x0,
+ (VOID **) &mVariableModuleGlobal->VariableGlobal[Physical].VolatileVariableBase
+ );
+ EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal);
+}
+
+EFI_STATUS
+EFIAPI
+VariableServiceInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ EFI_HANDLE NewHandle;
+ EFI_STATUS Status;
+
+ Status = VariableCommonInitialize (ImageHandle, SystemTable);
+ ASSERT_EFI_ERROR (Status);
+
+ SystemTable->RuntimeServices->GetVariable = RuntimeServiceGetVariable;
+ SystemTable->RuntimeServices->GetNextVariableName = RuntimeServiceGetNextVariableName;
+ SystemTable->RuntimeServices->SetVariable = RuntimeServiceSetVariable;
+ SystemTable->RuntimeServices->QueryVariableInfo = RuntimeServiceQueryVariableInfo;
+
+ //
+ // Now install the Variable Runtime Architectural Protocol on a new handle
+ //
+ NewHandle = NULL;
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &NewHandle,
+ &gEfiVariableArchProtocolGuid,
+ NULL,
+ &gEfiVariableWriteArchProtocolGuid,
+ NULL,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
diff --git a/MdeModulePkg/Universal/EmuVariableRuntimeDxe/Ipf/InitVariable.c b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/Ipf/InitVariable.c new file mode 100644 index 0000000..1b81dd6 --- /dev/null +++ b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/Ipf/InitVariable.c @@ -0,0 +1,181 @@ +/*++
+
+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:
+
+ IpfVariable.c
+
+Abstract:
+
+Revision History
+
+--*/
+
+#include "Variable.h"
+#include <IndustryStandard/Sal.h>
+
+//
+// Don't use module globals after the SetVirtualAddress map is signaled
+//
+
+STATIC
+SAL_RETURN_REGS
+EsalVariableCommonEntry (
+ IN UINT64 FunctionId,
+ IN UINT64 Arg2,
+ IN UINT64 Arg3,
+ IN UINT64 Arg4,
+ IN UINT64 Arg5,
+ IN UINT64 Arg6,
+ IN UINT64 Arg7,
+ IN UINT64 Arg8,
+ IN SAL_EXTENDED_SAL_PROC ExtendedSalProc,
+ IN BOOLEAN VirtualMode,
+ IN ESAL_VARIABLE_GLOBAL *Global
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ SAL_RETURN_REGS ReturnVal;
+
+ switch (FunctionId) {
+ case EsalGetVariable:
+ ReturnVal.Status = GetVariable (
+ (CHAR16 *) Arg2,
+ (EFI_GUID *) Arg3,
+ (UINT32 *) Arg4,
+ (UINTN *) Arg5,
+ (VOID *) Arg6,
+ &Global->VariableGlobal[VirtualMode],
+ Global->FvbInstance
+ );
+ return ReturnVal;
+
+ case EsalGetNextVariableName:
+ ReturnVal.Status = GetNextVariableName (
+ (UINTN *) Arg2,
+ (CHAR16 *) Arg3,
+ (EFI_GUID *) Arg4,
+ &Global->VariableGlobal[VirtualMode],
+ Global->FvbInstance
+ );
+ return ReturnVal;
+
+ case EsalSetVariable:
+ ReturnVal.Status = SetVariable (
+ (CHAR16 *) Arg2,
+ (EFI_GUID *) Arg3,
+ (UINT32) Arg4,
+ (UINTN) Arg5,
+ (VOID *) Arg6,
+ &Global->VariableGlobal[VirtualMode],
+ (UINTN *) &Global->VolatileLastVariableOffset,
+ (UINTN *) &Global->NonVolatileLastVariableOffset,
+ Global->FvbInstance
+ );
+ return ReturnVal;
+
+ case EsalQueryVariableInfo:
+ ReturnVal.Status = QueryVariableInfo (
+ (UINT32) Arg2,
+ (UINT64 *) Arg3,
+ (UINT64 *) Arg4,
+ (UINT64 *) Arg5,
+ &Global->VariableGlobal[VirtualMode],
+ Global->FvbInstance
+ );
+ return ReturnVal;
+
+ default:
+ ReturnVal.Status = EFI_SAL_INVALID_ARGUMENT;
+ return ReturnVal;
+ }
+}
+
+
+VOID
+VariableClassAddressChangeEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ CopyMem (
+ &mVariableModuleGlobal->VariableGlobal[Virtual],
+ &mVariableModuleGlobal->VariableGlobal[Physical],
+ sizeof (VARIABLE_GLOBAL)
+ );
+
+ EfiConvertPointer (
+ 0x0,
+ (VOID **) &mVariableModuleGlobal->VariableGlobal[Virtual].NonVolatileVariableBase
+ );
+ EfiConvertPointer (
+ 0x0,
+ (VOID **) &mVariableModuleGlobal->VariableGlobal[Virtual].VolatileVariableBase
+ );
+ EfiConvertPointer (0x0, (VOID **) &mVariableModuleGlobal);
+}
+
+EFI_STATUS
+VariableServiceInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+/*++
+
+Routine Description:
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ EFI_STATUS Status;
+
+ Status = VariableCommonInitialize (ImageHandle, SystemTable);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Register All the Functions with Extended Sal.
+ //
+ RegisterEsalClass (
+ &gEfiExtendedSalVariableServicesProtocolGuid,
+ mVariableModuleGlobal,
+ EsalVariableCommonEntry,
+ EsalGetVariable,
+ EsalVariableCommonEntry,
+ EsalGetNextVariableName,
+ EsalVariableCommonEntry,
+ EsalSetVariable,
+ EsalVariableCommonEntry,
+ EsalQueryVariableInfo,
+ NULL
+ );
+
+ return EFI_SUCCESS;
+}
diff --git a/MdeModulePkg/Universal/EmuVariableRuntimeDxe/Variable.h b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/Variable.h new file mode 100644 index 0000000..1e445c5 --- /dev/null +++ b/MdeModulePkg/Universal/EmuVariableRuntimeDxe/Variable.h @@ -0,0 +1,171 @@ +/*++
+
+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:
+
+ Variable.h
+
+Abstract:
+
+--*/
+
+#ifndef _VARIABLE_H
+#define _VARIABLE_H
+
+//
+// Statements that include other header files
+//
+//
+// The package level header files this module uses
+//
+#include <PiDxe.h>
+//
+// The protocols, PPI and GUID defintions for this module
+//
+#include <Protocol/VariableWrite.h>
+#include <Protocol/Variable.h>
+//
+// The Library classes this module consumes
+//
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiRuntimeLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/BaseLib.h>
+
+//
+// BugBug: We need relcate the head file.
+//
+#include <Common/Variable.h>
+
+#define VARIABLE_STORE_SIZE (64 * 1024)
+#define SCRATCH_SIZE (4 * 1024)
+
+//
+// Define GET_PAD_SIZE to optimize compiler
+//
+#if ((ALIGNMENT == 0) || (ALIGNMENT == 1))
+#define GET_PAD_SIZE(a) (0)
+#else
+#define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))
+#endif
+
+#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))
+
+typedef enum {
+ Physical,
+ Virtual
+} VARIABLE_POINTER_TYPE;
+
+typedef struct {
+ VARIABLE_HEADER *CurrPtr;
+ VARIABLE_HEADER *EndPtr;
+ VARIABLE_HEADER *StartPtr;
+ BOOLEAN Volatile;
+} VARIABLE_POINTER_TRACK;
+
+typedef struct {
+ EFI_PHYSICAL_ADDRESS VolatileVariableBase;
+ EFI_PHYSICAL_ADDRESS NonVolatileVariableBase;
+ EFI_LOCK VariableServicesLock;
+} VARIABLE_GLOBAL;
+
+typedef struct {
+ VARIABLE_GLOBAL VariableGlobal[2];
+ UINTN VolatileLastVariableOffset;
+ UINTN NonVolatileLastVariableOffset;
+ UINT32 FvbInstance;
+} ESAL_VARIABLE_GLOBAL;
+
+extern ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;
+
+//
+// Functions
+//
+EFI_STATUS
+EFIAPI
+VariableCommonInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+;
+
+EFI_STATUS
+EFIAPI
+VariableServiceInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+;
+
+VOID
+EFIAPI
+VariableClassAddressChangeEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+;
+
+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
+ )
+;
+
+EFI_STATUS
+EFIAPI
+GetNextVariableName (
+ IN OUT UINTN *VariableNameSize,
+ IN OUT CHAR16 *VariableName,
+ IN OUT EFI_GUID *VendorGuid,
+ IN VARIABLE_GLOBAL *Global,
+ IN UINT32 Instance
+ )
+;
+
+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
+ )
+;
+
+EFI_STATUS
+EFIAPI
+QueryVariableInfo (
+ IN UINT32 Attributes,
+ OUT UINT64 *MaximumVariableStorageSize,
+ OUT UINT64 *RemainingVariableStorageSize,
+ OUT UINT64 *MaximumVariableSize,
+ IN VARIABLE_GLOBAL *Global,
+ IN UINT32 Instance
+ )
+;
+
+#endif
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