#include "PciResourceSupport.h"

Functions
EFI_STATUS	PciEnumerator (IN EFI_HANDLE Controller, IN EFI_HANDLE HostBridgeHandle)

EFI_STATUS	PciRootBridgeEnumerator (IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL PciResAlloc, IN PCI_IO_DEVICE RootBridgeDev)

VOID	ProcessOptionRom (IN PCI_IO_DEVICE *Bridge, IN UINT64 RomBase, IN UINT64 MaxLength)

EFI_STATUS	PciAssignBusNumber (IN PCI_IO_DEVICE Bridge, IN UINT8 StartBusNumber, OUT UINT8 SubBusNumber)

EFI_STATUS	DetermineRootBridgeAttributes (IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL PciResAlloc, IN PCI_IO_DEVICE RootBridgeDev)

UINT32	GetMaxOptionRomSize (IN PCI_IO_DEVICE *Bridge)

EFI_STATUS	PciHostBridgeDeviceAttribute (IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc)

VOID	GetResourceAllocationStatus (VOID AcpiConfig, OUT UINT64 IoResStatus, OUT UINT64 Mem32ResStatus, OUT UINT64 PMem32ResStatus, OUT UINT64 Mem64ResStatus, OUT UINT64 PMem64ResStatus)

EFI_STATUS	RejectPciDevice (IN PCI_IO_DEVICE *PciDevice)

BOOLEAN	IsRejectiveDevice (IN PCI_RESOURCE_NODE *PciResNode)

PCI_RESOURCE_NODE *	GetLargerConsumerDevice (IN PCI_RESOURCE_NODE PciResNode1, IN PCI_RESOURCE_NODE PciResNode2)

PCI_RESOURCE_NODE *	GetMaxResourceConsumerDevice (IN PCI_RESOURCE_NODE *ResPool)

EFI_STATUS	PciHostBridgeAdjustAllocation (IN PCI_RESOURCE_NODE IoPool, IN PCI_RESOURCE_NODE Mem32Pool, IN PCI_RESOURCE_NODE PMem32Pool, IN PCI_RESOURCE_NODE Mem64Pool, IN PCI_RESOURCE_NODE *PMem64Pool, IN UINT64 IoResStatus, IN UINT64 Mem32ResStatus, IN UINT64 PMem32ResStatus, IN UINT64 Mem64ResStatus, IN UINT64 PMem64ResStatus)

EFI_STATUS	ConstructAcpiResourceRequestor (IN PCI_IO_DEVICE Bridge, IN PCI_RESOURCE_NODE IoNode, IN PCI_RESOURCE_NODE Mem32Node, IN PCI_RESOURCE_NODE PMem32Node, IN PCI_RESOURCE_NODE Mem64Node, IN PCI_RESOURCE_NODE PMem64Node, OUT VOID **Config)

VOID	GetResourceBase (IN VOID Config, OUT UINT64 IoBase, OUT UINT64 Mem32Base, OUT UINT64 PMem32Base, OUT UINT64 Mem64Base, OUT UINT64 PMem64Base)

EFI_STATUS	PciBridgeEnumerator (IN PCI_IO_DEVICE *BridgeDev)

EFI_STATUS	PciBridgeResourceAllocator (IN PCI_IO_DEVICE *Bridge)

EFI_STATUS	GetResourceBaseFromBridge (IN PCI_IO_DEVICE Bridge, OUT UINT64 IoBase, OUT UINT64 Mem32Base, OUT UINT64 PMem32Base, OUT UINT64 Mem64Base, OUT UINT64 PMem64Base)

EFI_STATUS	PciHostBridgeP2CProcess (IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc)

EFI_STATUS	NotifyPhase (IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc, EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE Phase)

EFI_STATUS	PreprocessController (IN PCI_IO_DEVICE *Bridge, IN UINT8 Bus, IN UINT8 Device, IN UINT8 Func, IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE Phase)

EFI_STATUS EFIAPI	PciHotPlugRequestNotify (IN EFI_PCI_HOTPLUG_REQUEST_PROTOCOL This, IN EFI_PCI_HOTPLUG_OPERATION Operation, IN EFI_HANDLE Controller, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath OPTIONAL, IN OUT UINT8 NumberOfChildren, IN OUT EFI_HANDLE ChildHandleBuffer)

BOOLEAN	SearchHostBridgeHandle (IN EFI_HANDLE RootBridgeHandle)

EFI_STATUS	AddHostBridgeEnumerator (IN EFI_HANDLE HostBridgeHandle)

Detailed Description

PCI bus enumeration logic function declaration for PCI bus module.

Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file PciEnumerator.h.

Function Documentation

◆ AddHostBridgeEnumerator()

EFI_STATUS AddHostBridgeEnumerator ( IN EFI_HANDLE HostBridgeHandle )

Add host bridge handle to global variable for enumerating.

Parameters

HostBridgeHandle Host bridge handle.

Return values

EFI_SUCCESS	Successfully added host bridge.
EFI_ABORTED	Host bridge is NULL, or given host bridge has been in host bridge list.

Definition at line 2171 of file PciEnumerator.c.

◆ ConstructAcpiResourceRequestor()

EFI_STATUS ConstructAcpiResourceRequestor	(	IN PCI_IO_DEVICE *	Bridge,
		IN PCI_RESOURCE_NODE *	IoNode,
		IN PCI_RESOURCE_NODE *	Mem32Node,
		IN PCI_RESOURCE_NODE *	PMem32Node,
		IN PCI_RESOURCE_NODE *	Mem64Node,
		IN PCI_RESOURCE_NODE *	PMem64Node,
		OUT VOID **	Config
	)

Summary requests for all resource type, and construct ACPI resource requestor instance.

Parameters

Bridge	detecting bridge
IoNode	Pointer to instance of I/O resource Node
Mem32Node	Pointer to instance of 32-bit memory resource Node
PMem32Node	Pointer to instance of 32-bit Pmemory resource node
Mem64Node	Pointer to instance of 64-bit memory resource node
PMem64Node	Pointer to instance of 64-bit Pmemory resource node
Config	Output buffer holding new constructed APCI resource requestor

Return values

EFI_SUCCESS	Successfully constructed ACPI resource.
EFI_OUT_OF_RESOURCES	No memory available.

Definition at line 1056 of file PciEnumerator.c.

◆ DetermineRootBridgeAttributes()

EFI_STATUS DetermineRootBridgeAttributes	(	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *	PciResAlloc,
		IN PCI_IO_DEVICE *	RootBridgeDev
	)

This routine is used to determine the root bridge attribute by interfacing the host bridge resource allocation protocol.

Parameters

PciResAlloc	Protocol instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
RootBridgeDev	Root bridge instance

Return values

EFI_SUCCESS	Successfully got root bridge's attribute.
other	Failed to get attribute.

Definition at line 469 of file PciEnumerator.c.

◆ GetLargerConsumerDevice()

PCI_RESOURCE_NODE * GetLargerConsumerDevice	(	IN PCI_RESOURCE_NODE *	PciResNode1,
		IN PCI_RESOURCE_NODE *	PciResNode2
	)

Compare two resource nodes and get the larger resource consumer.

Parameters

PciResNode1	resource node 1 want to be compared
PciResNode2	resource node 2 want to be compared

Returns: Larger resource node.

Definition at line 825 of file PciEnumerator.c.

◆ GetMaxOptionRomSize()

UINT32 GetMaxOptionRomSize ( IN PCI_IO_DEVICE * Bridge )

Get Max Option Rom size on specified bridge.

Parameters

Bridge Given bridge device instance.

Returns: Max size of option rom needed.

Definition at line 523 of file PciEnumerator.c.

◆ GetMaxResourceConsumerDevice()

PCI_RESOURCE_NODE * GetMaxResourceConsumerDevice ( IN PCI_RESOURCE_NODE * ResPool )

Get the max resource consumer in the host resource pool.

Parameters

ResPool Pointer to resource pool node.

Returns: The max resource consumer in the host resource pool.

Definition at line 860 of file PciEnumerator.c.

◆ GetResourceAllocationStatus()

VOID GetResourceAllocationStatus	(	VOID *	AcpiConfig,
		OUT UINT64 *	IoResStatus,
		OUT UINT64 *	Mem32ResStatus,
		OUT UINT64 *	PMem32ResStatus,
		OUT UINT64 *	Mem64ResStatus,
		OUT UINT64 *	PMem64ResStatus
	)

Get resource allocation status from the ACPI resource descriptor.

Parameters

AcpiConfig	Point to Acpi configuration table.
IoResStatus	Return the status of I/O resource.
Mem32ResStatus	Return the status of 32-bit Memory resource.
PMem32ResStatus	Return the status of 32-bit Prefetchable Memory resource.
Mem64ResStatus	Return the status of 64-bit Memory resource.
PMem64ResStatus	Return the status of 64-bit Prefetchable Memory resource.

Definition at line 628 of file PciEnumerator.c.

◆ GetResourceBase()

VOID GetResourceBase	(	IN VOID *	Config,
		OUT UINT64 *	IoBase,
		OUT UINT64 *	Mem32Base,
		OUT UINT64 *	PMem32Base,
		OUT UINT64 *	Mem64Base,
		OUT UINT64 *	PMem64Base
	)

Get resource base from an acpi configuration descriptor.

Parameters

Config	An acpi configuration descriptor.
IoBase	Output of I/O resource base address.
Mem32Base	Output of 32-bit memory base address.
PMem32Base	Output of 32-bit prefetchable memory base address.
Mem64Base	Output of 64-bit memory base address.
PMem64Base	Output of 64-bit prefetchable memory base address.

Definition at line 1283 of file PciEnumerator.c.

◆ GetResourceBaseFromBridge()

EFI_STATUS GetResourceBaseFromBridge	(	IN PCI_IO_DEVICE *	Bridge,
		OUT UINT64 *	IoBase,
		OUT UINT64 *	Mem32Base,
		OUT UINT64 *	PMem32Base,
		OUT UINT64 *	Mem64Base,
		OUT UINT64 *	PMem64Base
	)

Get resource base address for a pci bridge device.

Parameters

Bridge	Given Pci driver instance.
IoBase	Output for base address of I/O type resource.
Mem32Base	Output for base address of 32-bit memory type resource.
PMem32Base	Ooutput for base address of 32-bit Pmemory type resource.
Mem64Base	Output for base address of 64-bit memory type resource.
PMem64Base	Output for base address of 64-bit Pmemory type resource.

Return values

EFI_SUCCESS	Successfully got resource base address.
EFI_OUT_OF_RESOURCES	PCI bridge is not available.

Definition at line 1588 of file PciEnumerator.c.

◆ IsRejectiveDevice()

BOOLEAN IsRejectiveDevice ( IN PCI_RESOURCE_NODE * PciResNode )

Determine whethter a PCI device can be rejected.

Parameters

PciResNode Pointer to Pci resource node instance.

Return values

TRUE	The PCI device can be rejected.
TRUE	The PCI device cannot be rejected.

Definition at line 776 of file PciEnumerator.c.

◆ NotifyPhase()

EFI_STATUS NotifyPhase	(	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *	PciResAlloc,
		EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE	Phase
	)

These are the notifications from the PCI bus driver that it is about to enter a certain phase of the PCI enumeration process.

This member function can be used to notify the host bridge driver to perform specific actions, including any chipset-specific initialization, so that the chipset is ready to enter the next phase. Eight notification points are defined at this time. See belows: EfiPciHostBridgeBeginEnumeration Resets the host bridge PCI apertures and internal data structures. The PCI enumerator should issue this notification before starting a fresh enumeration process. Enumeration cannot be restarted after sending any other notification such as EfiPciHostBridgeBeginBusAllocation. EfiPciHostBridgeBeginBusAllocation The bus allocation phase is about to begin. No specific action is required here. This notification can be used to perform any chipset-specific programming. EfiPciHostBridgeEndBusAllocation The bus allocation and bus programming phase is complete. No specific action is required here. This notification can be used to perform any chipset-specific programming. EfiPciHostBridgeBeginResourceAllocation The resource allocation phase is about to begin. No specific action is required here. This notification can be used to perform any chipset-specific programming. EfiPciHostBridgeAllocateResources Allocates resources per previously submitted requests for all the PCI root bridges. These resource settings are returned on the next call to GetProposedResources(). Before calling NotifyPhase() with a Phase of EfiPciHostBridgeAllocateResource, the PCI bus enumerator is responsible for gathering I/O and memory requests for all the PCI root bridges and submitting these requests using SubmitResources(). This function pads the resource amount to suit the root bridge hardware, takes care of dependencies between the PCI root bridges, and calls the Global Coherency Domain (GCD) with the allocation request. In the case of padding, the allocated range could be bigger than what was requested. EfiPciHostBridgeSetResources Programs the host bridge hardware to decode previously allocated resources (proposed resources) for all the PCI root bridges. After the hardware is programmed, reassigning resources will not be supported. The bus settings are not affected. EfiPciHostBridgeFreeResources Deallocates resources that were previously allocated for all the PCI root bridges and resets the I/O and memory apertures to their initial state. The bus settings are not affected. If the request to allocate resources fails, the PCI enumerator can use this notification to deallocate previous resources, adjust the requests, and retry allocation. EfiPciHostBridgeEndResourceAllocation The resource allocation phase is completed. No specific action is required here. This notification can be used to perform any chipsetspecific programming.

Parameters

[in]	PciResAlloc	The instance pointer of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
[in]	Phase	The phase during enumeration

Return values

EFI_NOT_READY	This phase cannot be entered at this time. For example, this error is valid for a Phase of EfiPciHostBridgeAllocateResources if SubmitResources() has not been called for one or more PCI root bridges before this call
EFI_DEVICE_ERROR	Programming failed due to a hardware error. This error is valid for a Phase of EfiPciHostBridgeSetResources.
EFI_INVALID_PARAMETER	Invalid phase parameter
EFI_OUT_OF_RESOURCES	The request could not be completed due to a lack of resources. This error is valid for a Phase of EfiPciHostBridgeAllocateResources if the previously submitted resource requests cannot be fulfilled or were only partially fulfilled.
EFI_SUCCESS	The notification was accepted without any errors.

Definition at line 1725 of file PciEnumerator.c.

◆ PciAssignBusNumber()

EFI_STATUS PciAssignBusNumber	(	IN PCI_IO_DEVICE *	Bridge,
		IN UINT8	StartBusNumber,
		OUT UINT8 *	SubBusNumber
	)

This routine is used to assign bus number to the given PCI bus system

Parameters

Bridge	Parent root bridge instance.
StartBusNumber	Number of beginning.
SubBusNumber	The number of sub bus.

Return values

EFI_SUCCESS	Successfully assigned bus number.
EFI_DEVICE_ERROR	Failed to assign bus number.

Definition at line 325 of file PciEnumerator.c.

◆ PciBridgeEnumerator()

EFI_STATUS PciBridgeEnumerator ( IN PCI_IO_DEVICE * BridgeDev )

Enumerate pci bridge, allocate resource and determine attribute for devices on this bridge.

Parameters

BridgeDev Pointer to instance of bridge device.

Return values

EFI_SUCCESS	Successfully enumerated PCI bridge.
other	Failed to enumerate.

Definition at line 1373 of file PciEnumerator.c.

◆ PciBridgeResourceAllocator()

EFI_STATUS PciBridgeResourceAllocator ( IN PCI_IO_DEVICE * Bridge )

Allocate all kinds of resource for PCI bridge.

Parameters

Bridge Pointer to bridge instance.

Return values

EFI_SUCCESS	Successfully allocated resource for PCI bridge.
other	Failed to allocate resource for bridge.

Definition at line 1432 of file PciEnumerator.c.

◆ PciEnumerator()

EFI_STATUS PciEnumerator	(	IN EFI_HANDLE	Controller,
		IN EFI_HANDLE	HostBridgeHandle
	)

This routine is used to enumerate entire pci bus system in a given platform.

Parameters

Controller	Parent controller handle.
HostBridgeHandle	Host bridge handle.

Return values

EFI_SUCCESS	PCI enumeration finished successfully.
other	Some error occurred when enumerating the pci bus system.

Definition at line 24 of file PciEnumerator.c.

◆ PciHostBridgeAdjustAllocation()

EFI_STATUS PciHostBridgeAdjustAllocation	(	IN PCI_RESOURCE_NODE *	IoPool,
		IN PCI_RESOURCE_NODE *	Mem32Pool,
		IN PCI_RESOURCE_NODE *	PMem32Pool,
		IN PCI_RESOURCE_NODE *	Mem64Pool,
		IN PCI_RESOURCE_NODE *	PMem64Pool,
		IN UINT64	IoResStatus,
		IN UINT64	Mem32ResStatus,
		IN UINT64	PMem32ResStatus,
		IN UINT64	Mem64ResStatus,
		IN UINT64	PMem64ResStatus
	)

Adjust host bridge allocation so as to reduce resource requirement

Parameters

IoPool	Pointer to instance of I/O resource Node.
Mem32Pool	Pointer to instance of 32-bit memory resource Node.
PMem32Pool	Pointer to instance of 32-bit Prefetchable memory resource node.
Mem64Pool	Pointer to instance of 64-bit memory resource node.
PMem64Pool	Pointer to instance of 64-bit Prefetchable memory resource node.
IoResStatus	Status of I/O resource Node.
Mem32ResStatus	Status of 32-bit memory resource Node.
PMem32ResStatus	Status of 32-bit Prefetchable memory resource node.
Mem64ResStatus	Status of 64-bit memory resource node.
PMem64ResStatus	Status of 64-bit Prefetchable memory resource node.

Return values

EFI_SUCCESS	Successfully adjusted resource on host bridge.
EFI_ABORTED	Host bridge hasn't this resource type or no resource be adjusted.

Definition at line 914 of file PciEnumerator.c.

◆ PciHostBridgeDeviceAttribute()

EFI_STATUS PciHostBridgeDeviceAttribute ( IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL * PciResAlloc )

Process attributes of devices on this host bridge

Parameters

PciResAlloc Protocol instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.

Return values

EFI_SUCCESS	Successfully process attribute.
EFI_NOT_FOUND	Can not find the specific root bridge device.
other	Failed to determine the root bridge device's attribute.

Definition at line 584 of file PciEnumerator.c.

◆ PciHostBridgeP2CProcess()

EFI_STATUS PciHostBridgeP2CProcess ( IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL * PciResAlloc )

Process Option Rom on this host bridge

Parameters

PciResAlloc Pointer to instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.

Return values

EFI_NOT_FOUND	Can not find the root bridge instance.
EFI_SUCCESS	Success process.

Process Option Rom on the specified host bridge.

Parameters

PciResAlloc Pointer to instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.

Return values

EFI_SUCCESS	Success process.
EFI_NOT_FOUND	Can not find the root bridge instance.
other	Some error occurred when processing Option Rom on the host bridge.

Definition at line 1498 of file PciLib.c.

◆ PciHotPlugRequestNotify()

EFI_STATUS EFIAPI PciHotPlugRequestNotify	(	IN EFI_PCI_HOTPLUG_REQUEST_PROTOCOL *	This,
		IN EFI_PCI_HOTPLUG_OPERATION	Operation,
		IN EFI_HANDLE	Controller,
		IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath	OPTIONAL,
		IN OUT UINT8 *	NumberOfChildren,
		IN OUT EFI_HANDLE *	ChildHandleBuffer
	)

This function allows the PCI bus driver to be notified to act as requested when a hot-plug event has happened on the hot-plug controller. Currently, the operations include add operation and remove operation..

Parameters

This	A pointer to the hot plug request protocol.
Operation	The operation the PCI bus driver is requested to make.
Controller	The handle of the hot-plug controller.
RemainingDevicePath	The remaining device path for the PCI-like hot-plug device.
NumberOfChildren	The number of child handles. For a add operation, it is an output parameter. For a remove operation, it's an input parameter.
ChildHandleBuffer	The buffer which contains the child handles.

Return values

EFI_INVALID_PARAMETER	Operation is not a legal value. Controller is NULL or not a valid handle. NumberOfChildren is NULL. ChildHandleBuffer is NULL while Operation is add.
EFI_OUT_OF_RESOURCES	There are no enough resources to start the devices.
EFI_NOT_FOUND	Can not find bridge according to controller handle.
EFI_SUCCESS	The handles for the specified device have been created or destroyed as requested, and for an add operation, the new handles are returned in ChildHandleBuffer.

Definition at line 1991 of file PciEnumerator.c.

◆ PciRootBridgeEnumerator()

EFI_STATUS PciRootBridgeEnumerator	(	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *	PciResAlloc,
		IN PCI_IO_DEVICE *	RootBridgeDev
	)

Enumerate PCI root bridge.

Parameters

PciResAlloc	Pointer to protocol instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.
RootBridgeDev	Instance of root bridge device.

Return values

EFI_SUCCESS	Successfully enumerated root bridge.
other	Failed to enumerate root bridge.

Definition at line 115 of file PciEnumerator.c.

◆ PreprocessController()

EFI_STATUS PreprocessController	(	IN PCI_IO_DEVICE *	Bridge,
		IN UINT8	Bus,
		IN UINT8	Device,
		IN UINT8	Func,
		IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE	Phase
	)

Provides the hooks from the PCI bus driver to every PCI controller (device/function) at various stages of the PCI enumeration process that allow the host bridge driver to preinitialize individual PCI controllers before enumeration.

This function is called during the PCI enumeration process. No specific action is expected from this member function. It allows the host bridge driver to preinitialize individual PCI controllers before enumeration.

Parameters

Bridge	Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL instance.
Bus	The bus number of the pci device.
Device	The device number of the pci device.
Func	The function number of the pci device.
Phase	The phase of the PCI device enumeration.

Return values

EFI_SUCCESS	The requested parameters were returned.
EFI_INVALID_PARAMETER	RootBridgeHandle is not a valid root bridge handle.
EFI_INVALID_PARAMETER	Phase is not a valid phase that is defined in EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE.
EFI_DEVICE_ERROR	Programming failed due to a hardware error. The PCI enumerator should not enumerate this device, including its child devices if it is a PCI-to-PCI bridge.

Definition at line 1854 of file PciEnumerator.c.

◆ ProcessOptionRom()

VOID ProcessOptionRom	(	IN PCI_IO_DEVICE *	Bridge,
		IN UINT64	RomBase,
		IN UINT64	MaxLength
	)

This routine is used to process all PCI devices' Option Rom on a certain root bridge.

Parameters

Bridge	Given parent's root bridge.
RomBase	Base address of ROM driver loaded from.
MaxLength	Maximum rom size.

Definition at line 280 of file PciEnumerator.c.

◆ RejectPciDevice()

EFI_STATUS RejectPciDevice ( IN PCI_IO_DEVICE * PciDevice )

Remove a PCI device from device pool and mark its bar.

Parameters

PciDevice Instance of Pci device.

Return values

EFI_SUCCESS	Successfully remove the PCI device.
EFI_ABORTED	Pci device is a root bridge or a PCI-PCI bridge.

Definition at line 704 of file PciEnumerator.c.

◆ SearchHostBridgeHandle()

BOOLEAN SearchHostBridgeHandle ( IN EFI_HANDLE RootBridgeHandle )

Search hostbridge according to given handle

Parameters

RootBridgeHandle Host bridge handle.

Return values

TRUE	Found host bridge handle.
FALSE	Not found hot bridge handle.

Definition at line 2125 of file PciEnumerator.c.

Functions

Detailed Description

Function Documentation

◆ AddHostBridgeEnumerator()

◆ ConstructAcpiResourceRequestor()

◆ DetermineRootBridgeAttributes()

◆ GetLargerConsumerDevice()

◆ GetMaxOptionRomSize()

◆ GetMaxResourceConsumerDevice()

◆ GetResourceAllocationStatus()

◆ GetResourceBase()

◆ GetResourceBaseFromBridge()

◆ IsRejectiveDevice()

◆ NotifyPhase()

◆ PciAssignBusNumber()

◆ PciBridgeEnumerator()

◆ PciBridgeResourceAllocator()

◆ PciEnumerator()

◆ PciHostBridgeAdjustAllocation()

◆ PciHostBridgeDeviceAttribute()

◆ PciHostBridgeP2CProcess()

◆ PciHotPlugRequestNotify()

◆ PciRootBridgeEnumerator()

◆ PreprocessController()

◆ ProcessOptionRom()

◆ RejectPciDevice()

◆ SearchHostBridgeHandle()