SmmCommunicationBufferDxe.c File Reference

#include <PiDxe.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/UefiLib.h>
#include <Guid/MmCommBuffer.h>
#include <Guid/PiSmmCommunicationRegionTable.h>

Go to the source code of this file.

Macros
#define	DEFAULT_COMMON_PI_SMM_COMMUNIATION_REGION_PAGES   4

Functions
EFI_STATUS EFIAPI	SmmCommunicationBufferEntryPoint (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

Detailed Description

A driver allocates common SMM communication buffer in EfiReservedMemoryType.

This driver allocates common SMM communication buffer in EfiReservedMemoryType, then it publishes the information to EFI configuration table with gEdkiiPiSmmCommunicationRegionTableGuid. Any other driver or application can get the table and know the common communication buffer.

Copyright (c) 2016, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file SmmCommunicationBufferDxe.c.

Macro Definition Documentation

DEFAULT_COMMON_PI_SMM_COMMUNIATION_REGION_PAGES

#define DEFAULT_COMMON_PI_SMM_COMMUNIATION_REGION_PAGES   4

Definition at line 27 of file SmmCommunicationBufferDxe.c.

Function Documentation

SmmCommunicationBufferEntryPoint()

EFI_STATUS EFIAPI SmmCommunicationBufferEntryPoint	(	IN EFI_HANDLE	ImageHandle,
		IN EFI_SYSTEM_TABLE *	SystemTable
	)

Entry Point for SMM communication buffer driver.

Parameters

[in]	ImageHandle	Image handle of this driver.
[in]	SystemTable	A Pointer to the EFI System Table.

Return values

EFI_SUCEESS

Returns

Others Some error occurs.

Definition at line 40 of file SmmCommunicationBufferDxe.c.