PCI_ROOT_BRIDGE Struct Reference

Data Fields
UINT32	Segment
	Segment number.
UINT64	Supports
UINT64	Attributes
BOOLEAN	DmaAbove4G
BOOLEAN	NoExtendedConfigSpace
BOOLEAN	ResourceAssigned
UINT64	AllocationAttributes
PCI_ROOT_BRIDGE_APERTURE	Bus
	Bus aperture which can be used by the root bridge.
PCI_ROOT_BRIDGE_APERTURE	Io
	IO aperture which can be used by the root bridge.
PCI_ROOT_BRIDGE_APERTURE	Mem
	MMIO aperture below 4GB which can be used by the root bridge.
PCI_ROOT_BRIDGE_APERTURE	MemAbove4G
	MMIO aperture above 4GB which can be used by the root bridge.
PCI_ROOT_BRIDGE_APERTURE	PMem
	Prefetchable MMIO aperture below 4GB which can be used by the root bridge.
PCI_ROOT_BRIDGE_APERTURE	PMemAbove4G
	Prefetchable MMIO aperture above 4GB which can be used by the root bridge.
EFI_DEVICE_PATH_PROTOCOL *	DevicePath
	Device path.

Detailed Description

Definition at line 40 of file PciHostBridgeLib.h.

Field Documentation

AllocationAttributes

UINT64 PCI_ROOT_BRIDGE::AllocationAttributes

Allocation attributes. Refer to EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM and EFI_PCI_HOST_BRIDGE_MEM64_DECODE used by GetAllocAttributes() in EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.

Definition at line 56 of file PciHostBridgeLib.h.

Attributes

UINT64 PCI_ROOT_BRIDGE::Attributes

Initial attributes. Refer to EFI_PCI_ATTRIBUTE_xxx used by GetAttributes() and SetAttributes() in EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.

Definition at line 45 of file PciHostBridgeLib.h.

Bus

PCI_ROOT_BRIDGE_APERTURE PCI_ROOT_BRIDGE::Bus

Bus aperture which can be used by the root bridge.

Definition at line 60 of file PciHostBridgeLib.h.

DevicePath

EFI_DEVICE_PATH_PROTOCOL* PCI_ROOT_BRIDGE::DevicePath

Device path.

Definition at line 66 of file PciHostBridgeLib.h.

DmaAbove4G

BOOLEAN PCI_ROOT_BRIDGE::DmaAbove4G

DMA above 4GB memory. Set to TRUE when root bridge supports DMA above 4GB memory.

Definition at line 48 of file PciHostBridgeLib.h.

Io

PCI_ROOT_BRIDGE_APERTURE PCI_ROOT_BRIDGE::Io

IO aperture which can be used by the root bridge.

Definition at line 61 of file PciHostBridgeLib.h.

Mem

PCI_ROOT_BRIDGE_APERTURE PCI_ROOT_BRIDGE::Mem

MMIO aperture below 4GB which can be used by the root bridge.

Definition at line 62 of file PciHostBridgeLib.h.

MemAbove4G

PCI_ROOT_BRIDGE_APERTURE PCI_ROOT_BRIDGE::MemAbove4G

MMIO aperture above 4GB which can be used by the root bridge.

Definition at line 63 of file PciHostBridgeLib.h.

NoExtendedConfigSpace

BOOLEAN PCI_ROOT_BRIDGE::NoExtendedConfigSpace

When FALSE, the root bridge supports Extended (4096-byte) Configuration Space. When TRUE, the root bridge supports 256-byte Configuration Space only.

Definition at line 50 of file PciHostBridgeLib.h.

PMem

PCI_ROOT_BRIDGE_APERTURE PCI_ROOT_BRIDGE::PMem

Prefetchable MMIO aperture below 4GB which can be used by the root bridge.

Definition at line 64 of file PciHostBridgeLib.h.

PMemAbove4G

PCI_ROOT_BRIDGE_APERTURE PCI_ROOT_BRIDGE::PMemAbove4G

Prefetchable MMIO aperture above 4GB which can be used by the root bridge.

Definition at line 65 of file PciHostBridgeLib.h.

ResourceAssigned

BOOLEAN PCI_ROOT_BRIDGE::ResourceAssigned

Resource assignment status of the root bridge. Set to TRUE if Bus/IO/MMIO resources for root bridge have been assigned.

Definition at line 54 of file PciHostBridgeLib.h.

Segment

UINT32 PCI_ROOT_BRIDGE::Segment

Segment number.

Definition at line 41 of file PciHostBridgeLib.h.

Supports

UINT64 PCI_ROOT_BRIDGE::Supports

Supported attributes. Refer to EFI_PCI_ATTRIBUTE_xxx used by GetAttributes() and SetAttributes() in EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.

Definition at line 42 of file PciHostBridgeLib.h.

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The documentation for this struct was generated from the following file:

• MdeModulePkg/Include/Library/PciHostBridgeLib.h