MdePkg/Include/Protocol/SmmPciRootBridgeIo.h

   1 /** @file
   2   SMM PCI Root Bridge IO protocol as defined in the PI 1.2 specification.
   3
   4   This protocol provides PCI I/O and memory access within SMM.
   5
   6   Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
   7   This program and the accompanying materials
   8   are licensed and made available under the terms and conditions of the BSD License
   9   which accompanies this distribution.  The full text of the license may be found at
  10   http://opensource.org/licenses/bsd-license.php
  11
  12   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15 **/
  16
  17 #ifndef _SMM_PCI_ROOT_BRIDGE_IO_H_
  18 #define _SMM_PCI_ROOT_BRIDGE_IO_H_
  19
  20 #include <Protocol/MmPciRootBridgeIo.h>
  21
  22 #define EFI_SMM_PCI_ROOT_BRIDGE_IO_PROTOCOL_GUID EFI_MM_PCI_ROOT_BRIDGE_IO_PROTOCOL_GUID
  23
  24 ///
  25 /// This protocol provides the same functionality as the PCI Root Bridge I/O Protocol defined in the
  26 /// UEFI 2.1 Specifcation, section 13.2, except that the functions for Map() and Unmap() may return
  27 /// EFI_UNSUPPORTED.
  28 ///
  29 typedef EFI_MM_PCI_ROOT_BRIDGE_IO_PROTOCOL  EFI_SMM_PCI_ROOT_BRIDGE_IO_PROTOCOL;
  30
  31 extern EFI_GUID gEfiSmmPciRootBridgeIoProtocolGuid;
  32
  33 #endif
  34