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