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/** @file
Include file for SMM Base Protocol on SMM Base2 Protocol Thunk driver.
Copyright (c) 2009 - 2010, 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.
**/
#ifndef _SMM_BASE_ON_SMM_BASE2_THUNK_H_
#define _SMM_BASE_ON_SMM_BASE2_THUNK_H_
#include <PiDxe.h>
#include <FrameworkSmm.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/UefiRuntimeLib.h>
#include <Guid/SmmBaseThunkCommunication.h>
#include <Guid/EventGroup.h>
#include <Protocol/SmmBase2.h>
#include <Protocol/SmmCommunication.h>
#include <Protocol/SmmBaseHelperReady.h>
/**
Register a given driver into SMRAM. This is the equivalent of performing
the LoadImage/StartImage into System Management Mode.
@param[in] This Protocol instance pointer.
@param[in] FilePath Location of the image to be installed as the handler.
@param[in] SourceBuffer Optional source buffer in case the image file
is in memory.
@param[in] SourceSize Size of the source image file, if in memory.
@param[out] ImageHandle The handle that the base driver uses to decode
the handler. Unique among SMM handlers only,
not unique across DXE/EFI.
@param[in] LegacyIA32Binary An optional parameter specifying that the associated
file is a real-mode IA-32 binary.
@retval EFI_SUCCESS The operation was successful.
@retval EFI_OUT_OF_RESOURCES There were no additional SMRAM resources to load the handler
@retval EFI_UNSUPPORTED This platform does not support 16-bit handlers.
@retval EFI_UNSUPPORTED Platform is in runtime.
@retval EFI_INVALID_PARAMETER The handlers was not the correct image type
**/
EFI_STATUS
EFIAPI
SmmBaseRegister (
IN EFI_SMM_BASE_PROTOCOL *This,
IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
IN VOID *SourceBuffer,
IN UINTN SourceSize,
OUT EFI_HANDLE *ImageHandle,
IN BOOLEAN LegacyIA32Binary
);
/**
Removes a handler from execution within SMRAM. This is the equivalent of performing
the UnloadImage in System Management Mode.
@param[in] This Protocol instance pointer.
@param[in] ImageHandle The handler to be removed.
@retval EFI_SUCCESS The operation was successful
@retval EFI_INVALID_PARAMETER The handler did not exist
@retval EFI_UNSUPPORTED Platform is in runtime.
**/
EFI_STATUS
EFIAPI
SmmBaseUnregister (
IN EFI_SMM_BASE_PROTOCOL *This,
IN EFI_HANDLE ImageHandle
);
/**
The SMM Inter-module Communicate Service Communicate() function
provides a service to send/receive messages from a registered
EFI service. The BASE protocol driver is responsible for doing
any of the copies such that the data lives in boot-service-accessible RAM.
@param[in] This Protocol instance pointer.
@param[in] ImageHandle The handle of the registered driver.
@param[in,out] CommunicationBuffer Pointer to the buffer to convey into SMRAM.
@param[in,out] BufferSize The size of the data buffer being passed in.
On exit, the size of data being returned.
Zero if the handler does not wish to reply with any data.
@retval EFI_SUCCESS The message was successfully posted
@retval EFI_INVALID_PARAMETER The buffer was NULL
**/
EFI_STATUS
EFIAPI
SmmBaseCommunicate (
IN EFI_SMM_BASE_PROTOCOL *This,
IN EFI_HANDLE ImageHandle,
IN OUT VOID *CommunicationBuffer,
IN OUT UINTN *BufferSize
);
/**
Register a callback to execute within SMM.
This allows receipt of messages created with EFI_SMM_BASE_PROTOCOL.Communicate().
@param[in] This Protocol instance pointer.
@param[in] SmmImageHandle Handle of the callback service.
@param[in] CallbackAddress Address of the callback service.
@param[in] MakeLast If present, will stipulate that the handler is posted to
be executed last in the dispatch table.
@param[in] FloatingPointSave An optional parameter that informs the
EFI_SMM_ACCESS_PROTOCOL Driver core if it needs to save
the floating point register state. If any handler
require this, the state will be saved for all handlers.
@retval EFI_SUCCESS The operation was successful
@retval EFI_OUT_OF_RESOURCES Not enough space in the dispatch queue
@retval EFI_UNSUPPORTED Platform is in runtime.
@retval EFI_UNSUPPORTED The caller is not in SMM.
**/
EFI_STATUS
EFIAPI
SmmBaseRegisterCallback (
IN EFI_SMM_BASE_PROTOCOL *This,
IN EFI_HANDLE SmmImageHandle,
IN EFI_SMM_CALLBACK_ENTRY_POINT CallbackAddress,
IN BOOLEAN MakeLast,
IN BOOLEAN FloatingPointSave
);
/**
This routine tells caller if execution context is SMM or not.
@param[in] This Protocol instance pointer.
@param[out] InSmm Whether the caller is inside SMM for IA-32
or servicing a PMI for the Itanium processor
family.
@retval EFI_SUCCESS The operation was successful
@retval EFI_INVALID_PARAMETER InSmm was NULL.
**/
EFI_STATUS
EFIAPI
SmmBaseInSmm (
IN EFI_SMM_BASE_PROTOCOL *This,
OUT BOOLEAN *InSmm
);
/**
The SmmAllocatePool() function allocates a memory region of Size bytes from memory of
type PoolType and returns the address of the allocated memory in the location referenced
by Buffer. This function allocates pages from EFI SMRAM Memory as needed to grow the
requested pool type. All allocations are eight-byte aligned.
@param[in] This Protocol instance pointer.
@param[in] PoolType The type of pool to allocate.
The only supported type is EfiRuntimeServicesData;
the interface will internally map this runtime request to
SMRAM for IA-32 and leave as this type for the Itanium
processor family. Other types can be ignored.
@param[in] Size The number of bytes to allocate from the pool.
@param[out] Buffer A pointer to a pointer to the allocated buffer if the call
succeeds; undefined otherwise.
@retval EFI_SUCCESS The requested number of bytes was allocated.
@retval EFI_OUT_OF_RESOURCES The pool requested could not be allocated.
@retval EFI_UNSUPPORTED Platform is in runtime.
**/
EFI_STATUS
EFIAPI
SmmBaseSmmAllocatePool (
IN EFI_SMM_BASE_PROTOCOL *This,
IN EFI_MEMORY_TYPE PoolType,
IN UINTN Size,
OUT VOID **Buffer
);
/**
The SmmFreePool() function returns the memory specified by Buffer to the system.
On return, the memory's type is EFI SMRAM Memory. The Buffer that is freed must
have been allocated by SmmAllocatePool().
@param[in] This Protocol instance pointer.
@param[in] Buffer Pointer to the buffer allocation.
@retval EFI_SUCCESS The memory was returned to the system.
@retval EFI_INVALID_PARAMETER Buffer was invalid.
@retval EFI_UNSUPPORTED Platform is in runtime.
**/
EFI_STATUS
EFIAPI
SmmBaseSmmFreePool (
IN EFI_SMM_BASE_PROTOCOL *This,
IN VOID *Buffer
);
/**
The GetSmstLocation() function returns the location of the System Management
Service Table. The use of the API is such that a driver can discover the
location of the SMST in its entry point and then cache it in some driver
global variable so that the SMST can be invoked in subsequent callbacks.
@param[in] This Protocol instance pointer.
@param[in] Smst Pointer to the SMST.
@retval EFI_SUCCESS The operation was successful
@retval EFI_INVALID_PARAMETER Smst was invalid.
@retval EFI_UNSUPPORTED Not in SMM.
**/
EFI_STATUS
EFIAPI
SmmBaseGetSmstLocation (
IN EFI_SMM_BASE_PROTOCOL *This,
OUT EFI_SMM_SYSTEM_TABLE **Smst
);
#endif
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