PciSegmentInfoLibAcpiBoardInfo.c File Reference

#include <PiDxe.h>
#include <Guid/AcpiBoardInfoGuid.h>
#include <Library/HobLib.h>
#include <Library/PciSegmentInfoLib.h>
#include <Library/DebugLib.h>
#include <UniversalPayload/PciRootBridges.h>
#include <Library/PciLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PcdLib.h>
#include <Library/BaseMemoryLib.h>
#include <Guid/PciSegmentInfoGuid.h>

Go to the source code of this file.

Functions
VOID	RetrieveMultiSegmentInfoFromHob (IN UNIVERSAL_PAYLOAD_PCI_ROOT_BRIDGES *PciRootBridgeInfo, IN UPL_PCI_SEGMENT_INFO_HOB *UplSegmentInfo, OUT UINTN *NumberOfRootBridges)
VOID	RetrieveSegmentInfoFromHob (OUT UINTN *NumberOfRootBridges)
UNIVERSAL_PAYLOAD_PCI_ROOT_BRIDGES *	Get_RBInfo (VOID)
UPL_PCI_SEGMENT_INFO_HOB *	Get_UPLSegInfo (VOID)
PCI_SEGMENT_INFO *EFIAPI	GetPciSegmentInfo (UINTN *Count)

Detailed Description

PCI Segment Information Library that returns one segment whose segment base address is retrieved from AcpiBoardInfo HOB.

Copyright (c) 2020, Intel Corporation. All rights reserved.
Copyright (c) 2024, Rivos Inc. All rights reserved.

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

Definition in file PciSegmentInfoLibAcpiBoardInfo.c.

Function Documentation

Get_RBInfo()

UNIVERSAL_PAYLOAD_PCI_ROOT_BRIDGES * Get_RBInfo

(

VOID

)

Return info for all root bridges

Returns

All the root bridge info instances in an array.

Definition at line 113 of file PciSegmentInfoLibAcpiBoardInfo.c.

Get_UPLSegInfo()

UPL_PCI_SEGMENT_INFO_HOB * Get_UPLSegInfo

(

VOID

)

Return info for all root bridge segments

Returns

All the segment info instances in an array.

Definition at line 155 of file PciSegmentInfoLibAcpiBoardInfo.c.

GetPciSegmentInfo()

PCI_SEGMENT_INFO *EFIAPI GetPciSegmentInfo

(

UINTN *

Count

)

Return all the root bridge instances in an array.

Parameters

Count

Return the count of root bridge instances.

Returns

All the root bridge instances in an array. The array should be passed into PciHostBridgeFreeRootBridges() when it's not used.

Definition at line 202 of file PciSegmentInfoLibAcpiBoardInfo.c.

RetrieveMultiSegmentInfoFromHob()

VOID RetrieveMultiSegmentInfoFromHob	(	IN UNIVERSAL_PAYLOAD_PCI_ROOT_BRIDGES *	PciRootBridgeInfo,
		IN UPL_PCI_SEGMENT_INFO_HOB *	UplSegmentInfo,
		OUT UINTN *	NumberOfRootBridges
	)

Find segment info from all root bridges

Parameters

[in]	PciRootBridgeInfo	Pointer of Universal Payload PCI Root Bridge Info Hob
[in]	UplSegmentInfo	Pointer of Universal UPL Segment Info
[out]	NumberOfRootBridges	Number of root bridges detected

Definition at line 38 of file PciSegmentInfoLibAcpiBoardInfo.c.

RetrieveSegmentInfoFromHob()

VOID RetrieveSegmentInfoFromHob

(

OUT UINTN *

NumberOfRootBridges

)

Find segment info from all root bridges for legacy systems

Parameters

[in]	PciRootBridgeInfo	Pointer of Universal Payload PCI Root Bridge Info Hob
[out]	NumberOfRootBridges	Number of root bridges detected

Definition at line 83 of file PciSegmentInfoLibAcpiBoardInfo.c.