audk/OvmfPkg/Library/QemuBootOrderLib/ExtraRootBusMap.h

/** @file
  Map positions of extra PCI root buses to bus numbers.

  Copyright (C) 2015, Red Hat, Inc.

  SPDX-License-Identifier: BSD-2-Clause-Patent
**/

#ifndef __EXTRA_ROOT_BUS_MAP_H__
#define __EXTRA_ROOT_BUS_MAP_H__

/**
  Incomplete ("opaque") data type implementing the map.
**/
typedef struct EXTRA_ROOT_BUS_MAP_STRUCT EXTRA_ROOT_BUS_MAP;

EFI_STATUS
CreateExtraRootBusMap (
  OUT EXTRA_ROOT_BUS_MAP **ExtraRootBusMap
  );

VOID
DestroyExtraRootBusMap (
  IN EXTRA_ROOT_BUS_MAP *ExtraRootBusMap
  );

EFI_STATUS
MapRootBusPosToBusNr (
  IN  CONST EXTRA_ROOT_BUS_MAP *ExtraRootBusMap,
  IN  UINT64                   RootBusPos,
  OUT UINT32                   *RootBusNr
  );

#endif