MdePkg/Include/Protocol/SmmControl2.h

   1 /** @file
   2   EFI SMM Control2 Protocol as defined in the PI 1.2 specification.
   3
   4   This protocol is used initiate synchronous SMI activations. This protocol could be published by a
   5   processor driver to abstract the SMI IPI or a driver which abstracts the ASIC that is supporting the
   6   APM port. Because of the possibility of performing SMI IPI transactions, the ability to generate this
   7   event from a platform chipset agent is an optional capability for both IA-32 and x64-based systems.
   8
   9   The EFI_SMM_CONTROL2_PROTOCOL is produced by a runtime driver. It provides  an
  10   abstraction of the platform hardware that generates an SMI.  There are often I/O ports that, when
  11   accessed, will generate the SMI.  Also, the hardware optionally supports the periodic generation of
  12   these signals.
  13
  14   Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
  15   This program and the accompanying materials
  16   are licensed and made available under the terms and conditions of the BSD License
  17   which accompanies this distribution.  The full text of the license may be found at
  18   http://opensource.org/licenses/bsd-license.php
  19
  20   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  21   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  22
  23 **/
  24
  25 #ifndef _SMM_CONTROL2_H_
  26 #define _SMM_CONTROL2_H_
  27
  28 #include <Protocol/MmControl.h>
  29
  30 #define EFI_SMM_CONTROL2_PROTOCOL_GUID EFI_MM_CONTROL_PROTOCOL_GUID
  31
  32 typedef EFI_MM_CONTROL_PROTOCOL  EFI_SMM_CONTROL2_PROTOCOL;
  33 typedef EFI_MM_PERIOD  EFI_SMM_PERIOD;
  34
  35 typedef EFI_MM_ACTIVATE EFI_SMM_ACTIVATE2;
  36
  37 typedef EFI_MM_DEACTIVATE EFI_SMM_DEACTIVATE2;
  38 extern EFI_GUID gEfiSmmControl2ProtocolGuid;
  39
  40 #endif
  41