ScanForRootBridges.c File Reference

#include <IndustryStandard/Pci.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PciHostBridgeLib.h>
#include <Library/PciHostBridgeUtilityLib.h>
#include <Library/PciLib.h>
#include <Protocol/PciRootBridgeIo.h>
#include "PciHostBridge.h"

Go to the source code of this file.

Macros
#define	PCI_COMMAND_DECODE

Functions
STATIC VOID	PcatPciRootBridgeBarExisted (IN UINTN Address, OUT UINT32 *OriginalValue, OUT UINT32 *Value)
STATIC VOID	PcatPciRootBridgeDecodingDisable (IN UINTN Address)
STATIC VOID	PcatPciRootBridgeParseBars (IN UINT16 Command, IN UINTN Bus, IN UINTN Device, IN UINTN Function, IN UINTN BarOffsetBase, IN UINTN BarOffsetEnd, IN PCI_ROOT_BRIDGE_APERTURE *Io, IN PCI_ROOT_BRIDGE_APERTURE *Mem, IN PCI_ROOT_BRIDGE_APERTURE *MemAbove4G)
PCI_ROOT_BRIDGE *	ScanForRootBridges (UINTN *NumberOfRootBridges)

Variables
STATIC PCI_ROOT_BRIDGE_APERTURE	mNonExistAperture = { MAX_UINT64, 0 }

Detailed Description

Scan the entire PCI bus for root bridges to support OVMF on Bhyve and Xen.

Copyright (C) 2021, Red Hat, Inc. Copyright (c) 2016, Intel Corporation. All rights reserved.

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

Definition in file ScanForRootBridges.c.

Macro Definition Documentation

PCI_COMMAND_DECODE

#define PCI_COMMAND_DECODE

Value:

                                     ((UINT16)(EFI_PCI_COMMAND_IO_SPACE |\
                                     EFI_PCI_COMMAND_MEMORY_SPACE))

Definition at line 51 of file ScanForRootBridges.c.

Function Documentation

PcatPciRootBridgeBarExisted()

STATIC VOID PcatPciRootBridgeBarExisted	(	IN UINTN	Address,
		OUT UINT32 *	OriginalValue,
		OUT UINT32 *	Value
	)

Definition at line 25 of file ScanForRootBridges.c.

PcatPciRootBridgeDecodingDisable()

STATIC VOID PcatPciRootBridgeDecodingDisable

(

IN UINTN

Address

)

Definition at line 55 of file ScanForRootBridges.c.

PcatPciRootBridgeParseBars()

STATIC VOID PcatPciRootBridgeParseBars	(	IN UINT16	Command,
		IN UINTN	Bus,
		IN UINTN	Device,
		IN UINTN	Function,
		IN UINTN	BarOffsetBase,
		IN UINTN	BarOffsetEnd,
		IN PCI_ROOT_BRIDGE_APERTURE *	Io,
		IN PCI_ROOT_BRIDGE_APERTURE *	Mem,
		IN PCI_ROOT_BRIDGE_APERTURE *	MemAbove4G
	)

Definition at line 69 of file ScanForRootBridges.c.

ScanForRootBridges()

PCI_ROOT_BRIDGE * ScanForRootBridges

(

UINTN *

NumberOfRootBridges

)

Definition at line 188 of file ScanForRootBridges.c.

Variable Documentation

mNonExistAperture

STATIC PCI_ROOT_BRIDGE_APERTURE mNonExistAperture = { MAX_UINT64, 0 }

Definition at line 185 of file ScanForRootBridges.c.