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 - 2018, Intel Corporation. All rights reserved.<BR>
   7   SPDX-License-Identifier: BSD-2-Clause-Patent
   8
   9 **/
  10
  11 #ifndef _SMM_PCI_ROOT_BRIDGE_IO_H_
  12 #define _SMM_PCI_ROOT_BRIDGE_IO_H_
  13
  14 #include <Protocol/MmPciRootBridgeIo.h>
  15
  16 #define EFI_SMM_PCI_ROOT_BRIDGE_IO_PROTOCOL_GUID EFI_MM_PCI_ROOT_BRIDGE_IO_PROTOCOL_GUID
  17
  18 ///
  19 /// This protocol provides the same functionality as the PCI Root Bridge I/O Protocol defined in the
  20 /// UEFI 2.1 Specifcation, section 13.2, except that the functions for Map() and Unmap() may return
  21 /// EFI_UNSUPPORTED.
  22 ///
  23 typedef EFI_MM_PCI_ROOT_BRIDGE_IO_PROTOCOL  EFI_SMM_PCI_ROOT_BRIDGE_IO_PROTOCOL;
  24
  25 extern EFI_GUID gEfiSmmPciRootBridgeIoProtocolGuid;
  26
  27 #endif
  28