audk/EmulatorPkg/EmuThunkDxe/EmuThunk.c

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/*++ @file
Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2011, Apple Inc. 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 <PiDxe.h>
#include <Protocol/DevicePath.h>
#include <Protocol/EmuThunk.h>
#include <Library/DebugLib.h>
#include <Library/UefiLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/EmuThunkLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DevicePathLib.h>
//
// EmuThunk Device Path Protocol Instance
//
EMU_THUNK_DEVICE_PATH mEmuThunkDevicePath = {
{
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (EMU_VENDOR_DEVICE_PATH_NODE)),
(UINT8) ((sizeof (EMU_VENDOR_DEVICE_PATH_NODE)) >> 8)
}
},
EMU_THUNK_PROTOCOL_GUID
},
0
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{
END_DEVICE_PATH_LENGTH,
0
}
}
};
EFI_STATUS
EFIAPI
InitializeEmuThunk (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Install UnixThunk Protocol and it's associated Device Path protocol
Arguments:
(Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
Returns:
EFI_SUCEESS - UnixThunk protocol is added or error status from
gBS->InstallMultiProtocolInterfaces().
**/
{
EFI_STATUS Status;
EFI_HANDLE Handle;
Handle = NULL;
Status = gBS->InstallMultipleProtocolInterfaces (
&Handle,
&gEmuThunkProtocolGuid, gEmuThunk,
&gEfiDevicePathProtocolGuid, &mEmuThunkDevicePath,
NULL
);
return Status;
}