Add in EmuVariableRuntimeDxe

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3123 6f19259b-4bc3-4df7-8a09-765794883524

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;
+}