MdePkg/Include/Protocol/SmmCommunication.h File Reference


Data Structures

struct  _EFI_SMM_COMMUNICATION_PROTOCOL

Defines

#define EFI_SMM_COMMUNICATION_PROTOCOL_GUID

Typedefs

typedef struct
_EFI_SMM_COMMUNICATION_PROTOCOL 
EFI_SMM_COMMUNICATION_PROTOCOL
typedef EFI_STATUS(EFIAPIEFI_SMM_COMMUNICATE2 )(IN CONST EFI_SMM_COMMUNICATION_PROTOCOL *This, IN OUT VOID *CommBuffer, IN OUT UINTN *CommSize)

Variables

EFI_GUID gEfiSmmCommunicationProtocolGuid

Detailed Description

EFI SMM Communication Protocol as defined in the PI 1.2 specification.

This protocol provides a means of communicating between drivers outside of SMM and SMI handlers inside of SMM.

Copyright (c) 2009 - 2011, 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.


Define Documentation

#define EFI_SMM_COMMUNICATION_PROTOCOL_GUID

Value:

{ \
    0xc68ed8e2, 0x9dc6, 0x4cbd, { 0x9d, 0x94, 0xdb, 0x65, 0xac, 0xc5, 0xc3, 0x32 } \
  }


Typedef Documentation

typedef EFI_STATUS(EFIAPI * EFI_SMM_COMMUNICATE2)(IN CONST EFI_SMM_COMMUNICATION_PROTOCOL *This, IN OUT VOID *CommBuffer, IN OUT UINTN *CommSize)

Communicates with a registered handler.

This function provides a service to send and receive messages from a registered UEFI service.

Parameters:
[in] This The EFI_SMM_COMMUNICATION_PROTOCOL instance.
[in] CommBuffer A pointer to the buffer to convey into SMRAM.
[in] CommSize 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.
Return values:
EFI_SUCCESS The message was successfully posted.
EFI_INVALID_PARAMETER The CommBuffer was NULL.


Variable Documentation


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