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Subrata Banik20fe24b2021-12-09 02:46:38 +05301/** @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///
23typedef EFI_MM_PCI_ROOT_BRIDGE_IO_PROTOCOL EFI_SMM_PCI_ROOT_BRIDGE_IO_PROTOCOL;
24
25extern EFI_GUID gEfiSmmPciRootBridgeIoProtocolGuid;
26
27#endif
28