93b0fbc8a1
Changed old event definitions reference to these new event definitions. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2729 6f19259b-4bc3-4df7-8a09-765794883524
174 lines
4.1 KiB
C
174 lines
4.1 KiB
C
/**@file
|
|
Library utility functions for Runtime driver.
|
|
|
|
Copyright (c) 2006 Intel Corporation. <BR>
|
|
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.
|
|
|
|
**/
|
|
|
|
#include <RuntimeLibInternal.h>
|
|
|
|
///
|
|
/// Driver Lib Module Globals
|
|
///
|
|
|
|
STATIC EFI_EVENT mEfiVirtualNotifyEvent;
|
|
STATIC BOOLEAN mEfiGoneVirtual = FALSE;
|
|
STATIC BOOLEAN mEfiAtRuntime = FALSE;
|
|
EFI_RUNTIME_SERVICES *mRT;
|
|
|
|
/**
|
|
Set AtRuntime flag as TRUE after ExitBootServices
|
|
|
|
@param[in] Event The Event that is being processed
|
|
@param[in] Context Event Context
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
RuntimeDriverExitBootServices (
|
|
IN EFI_EVENT Event,
|
|
IN VOID *Context
|
|
)
|
|
{
|
|
//
|
|
// Clear out BootService globals
|
|
//
|
|
gBS = NULL;
|
|
|
|
mEfiAtRuntime = TRUE;
|
|
}
|
|
|
|
/**
|
|
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.
|
|
|
|
@param[in] Event The Event that is being processed
|
|
@param[in] Context Event Context
|
|
**/
|
|
STATIC
|
|
VOID
|
|
EFIAPI
|
|
RuntimeLibVirtualNotifyEvent (
|
|
IN EFI_EVENT Event,
|
|
IN VOID *Context
|
|
)
|
|
{
|
|
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
|
|
//
|
|
EfiConvertPointer (0, (VOID **) &mRT);
|
|
|
|
mEfiGoneVirtual = TRUE;
|
|
}
|
|
|
|
/**
|
|
Intialize runtime Driver Lib if it has not yet been initialized.
|
|
|
|
@param[in] ImageHandle The firmware allocated handle for the EFI image.
|
|
@param[in] SystemTable A pointer to the EFI System Table.
|
|
|
|
@return EFI_STATUS always returns EFI_SUCCESS except EFI_ALREADY_STARTED if already started.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RuntimeDriverLibConstruct (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
ASSERT (SystemTable != NULL);
|
|
mRT = SystemTable->RuntimeServices;
|
|
ASSERT (mRT != NULL);
|
|
|
|
//
|
|
// Register SetVirtualAddressMap () notify function
|
|
//
|
|
ASSERT (gBS != NULL);
|
|
Status = gBS->CreateEvent (
|
|
EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,
|
|
TPL_NOTIFY,
|
|
RuntimeLibVirtualNotifyEvent,
|
|
NULL,
|
|
&mEfiVirtualNotifyEvent
|
|
);
|
|
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
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.
|
|
|
|
@retval EFI_SUCCESS Shutdown the Runtime Driver Lib successfully
|
|
@retval EFI_UNSUPPORTED Runtime Driver lib was not initialized at all
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
RuntimeDriverLibDeconstruct (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
//
|
|
// Close SetVirtualAddressMap () notify function
|
|
//
|
|
ASSERT (gBS != NULL);
|
|
Status = gBS->CloseEvent (mEfiVirtualNotifyEvent);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Return TRUE if ExitBootServices () has been called
|
|
|
|
@retval TRUE If ExitBootServices () has been called
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
EfiAtRuntime (
|
|
VOID
|
|
)
|
|
{
|
|
return mEfiAtRuntime;
|
|
}
|
|
|
|
/**
|
|
Return TRUE if SetVirtualAddressMap () has been called
|
|
|
|
@retval TRUE If SetVirtualAddressMap () has been called
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
EfiGoneVirtual (
|
|
VOID
|
|
)
|
|
{
|
|
return mEfiGoneVirtual;
|
|
}
|
|
|