Change DxeRuntimeDriverLib name to UefiRuntimeLib.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1061 6f19259b-4bc3-4df7-8a09-765794883524

EdkModulePkg/Library/EdkUefiRuntimeLib/Common/RuntimeLib.c

@@ -0,0 +1,258 @@
+/*++
+
+Copyright (c) 2006, 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:
+
+    RuntimeLib.c
+
+Abstract:
+
+  Light weight lib to support Tiano drivers.
+
+--*/
+
+#include <RuntimeLibInternal.h>
+
+//
+// Driver Lib Module Globals
+//
+STATIC EFI_EVENT            mRuntimeNotifyEvent;
+STATIC EFI_EVENT            mEfiVirtualNotifyEvent;
+STATIC BOOLEAN              mEfiGoneVirtual         = FALSE;
+STATIC BOOLEAN              mEfiAtRuntime           = FALSE;
+
+EFI_RUNTIME_SERVICES        *mRT                    = NULL;
+
+VOID
+EFIAPI
+RuntimeDriverExitBootServices (
+  IN EFI_EVENT        Event,
+  IN VOID             *Context
+  )
+/*++
+
+Routine Description:
+
+  Set AtRuntime flag as TRUE after ExitBootServices
+
+Arguments:
+
+  Event   - The Event that is being processed
+  
+  Context - Event Context
+
+Returns: 
+
+  None
+
+--*/
+{
+  EFI_EVENT_NOTIFY  ChildNotifyEventHandler;
+  UINTN             Index;
+
+  for (Index = 0; 
+       _gDriverExitBootServicesEvent[Index] != NULL;
+       Index++) {
+    ChildNotifyEventHandler = _gDriverExitBootServicesEvent[Index];
+    ChildNotifyEventHandler (Event, NULL);
+  }
+
+  mEfiAtRuntime = TRUE;
+}
+
+STATIC
+VOID
+EFIAPI
+RuntimeLibVirtualNotifyEvent (
+  IN EFI_EVENT        Event,
+  IN VOID             *Context
+  )
+/*++
+
+Routine Description:
+
+  Fixup internal data so that EFI can be call in virtual mode.
+  Call the passed in Child Notify event and convert any pointers in 
+  lib to virtual mode.
+
+Arguments:
+
+  Event   - The Event that is being processed
+  
+  Context - Event Context
+
+Returns: 
+
+  None
+
+--*/
+{
+  UINTN Index;
+  EFI_EVENT_NOTIFY  ChildNotifyEventHandler;
+
+  for (Index = 0; 
+       _gDriverSetVirtualAddressMapEvent[Index] != NULL;
+       Index++) {
+    ChildNotifyEventHandler = _gDriverSetVirtualAddressMapEvent[Index];
+    ChildNotifyEventHandler (Event, NULL);
+  }
+
+  //
+  // Update global for Runtime Services Table and IO
+  //
+  EfiConvertInternalPointer ((VOID **) &mRT);
+
+  //
+  // Clear out BootService globals
+  //
+  gBS             = NULL;
+  gST             = NULL;
+  mEfiGoneVirtual = TRUE;
+}
+
+EFI_STATUS
+RuntimeDriverLibConstruct (
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_SYSTEM_TABLE     *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  Intialize runtime Driver Lib if it has not yet been initialized. 
+
+Arguments:
+
+  ImageHandle     - The firmware allocated handle for the EFI image.
+  
+  SystemTable     - A pointer to the EFI System Table.
+
+  GoVirtualChildEvent - Caller can register a virtual notification event.
+
+Returns: 
+
+  EFI_STATUS always returns EFI_SUCCESS except EFI_ALREADY_STARTED if already started.
+
+--*/
+{
+  EFI_STATUS  Status;
+
+  mRT = SystemTable->RuntimeServices;
+
+  //
+  // Register our ExitBootServices () notify function
+  //
+  Status = gBS->CreateEvent (
+                  EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES,
+                  EFI_TPL_NOTIFY,
+                  RuntimeDriverExitBootServices,
+                  NULL,
+                  &mRuntimeNotifyEvent
+                  );
+
+  ASSERT_EFI_ERROR (Status);
+
+  //
+  // Register SetVirtualAddressMap () notify function
+  // 
+  Status = gBS->CreateEvent (
+                  EFI_EVENT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,
+                  EFI_TPL_NOTIFY,
+                  RuntimeLibVirtualNotifyEvent,
+                  NULL,
+                  &mEfiVirtualNotifyEvent
+                  );
+
+  ASSERT_EFI_ERROR (Status);
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+RuntimeDriverLibDeconstruct (
+  VOID
+  )
+/*++
+
+Routine Description:
+
+  This routine will free some resources which have been allocated in
+  EfiInitializeRuntimeDriverLib(). If a runtime driver exits with an error, 
+  it must call this routine to free the allocated resource before the exiting.
+
+Arguments:
+
+  None
+
+Returns: 
+
+  EFI_SUCCESS     - Shotdown the Runtime Driver Lib successfully
+  EFI_UNSUPPORTED - Runtime Driver lib was not initialized at all
+
+--*/
+{
+  EFI_STATUS  Status;
+
+  //
+  // Close our ExitBootServices () notify function
+  //
+  Status = gBS->CloseEvent (mRuntimeNotifyEvent);
+  ASSERT_EFI_ERROR (Status);
+
+  //
+  // Close SetVirtualAddressMap () notify function
+  //
+  Status = gBS->CloseEvent (mEfiVirtualNotifyEvent);
+  ASSERT_EFI_ERROR (Status);
+
+  return EFI_SUCCESS;
+}
+
+BOOLEAN
+EfiAtRuntime (
+  VOID
+  )
+/*++
+
+Routine Description:
+  Return TRUE if ExitBootServices () has been called
+
+Arguments:
+  NONE
+
+Returns: 
+  TRUE - If ExitBootServices () has been called
+
+--*/
+{
+  return mEfiAtRuntime;
+}
+
+BOOLEAN
+EfiGoneVirtual (
+  VOID
+  )
+/*++
+
+Routine Description:
+  Return TRUE if SetVirtualAddressMap () has been called
+
+Arguments:
+  NONE
+
+Returns: 
+  TRUE - If SetVirtualAddressMap () has been called
+
+--*/
+{
+  return mEfiGoneVirtual;
+}
+