_EFI_PCI_IO_PROTOCOL Struct Reference

Data Fields
EFI_PCI_IO_PROTOCOL_POLL_IO_MEM	PollMem
EFI_PCI_IO_PROTOCOL_POLL_IO_MEM	PollIo
EFI_PCI_IO_PROTOCOL_ACCESS	Mem
EFI_PCI_IO_PROTOCOL_ACCESS	Io
EFI_PCI_IO_PROTOCOL_CONFIG_ACCESS	Pci
EFI_PCI_IO_PROTOCOL_COPY_MEM	CopyMem
EFI_PCI_IO_PROTOCOL_MAP	Map
EFI_PCI_IO_PROTOCOL_UNMAP	Unmap
EFI_PCI_IO_PROTOCOL_ALLOCATE_BUFFER	AllocateBuffer
EFI_PCI_IO_PROTOCOL_FREE_BUFFER	FreeBuffer
EFI_PCI_IO_PROTOCOL_FLUSH	Flush
EFI_PCI_IO_PROTOCOL_GET_LOCATION	GetLocation
EFI_PCI_IO_PROTOCOL_ATTRIBUTES	Attributes
EFI_PCI_IO_PROTOCOL_GET_BAR_ATTRIBUTES	GetBarAttributes
EFI_PCI_IO_PROTOCOL_SET_BAR_ATTRIBUTES	SetBarAttributes
UINT64	RomSize
VOID *	RomImage

Detailed Description

The EFI_PCI_IO_PROTOCOL provides the basic Memory, I/O, PCI configuration, and DMA interfaces used to abstract accesses to PCI controllers. There is one EFI_PCI_IO_PROTOCOL instance for each PCI controller on a PCI bus. A device driver that wishes to manage a PCI controller in a system will have to retrieve the EFI_PCI_IO_PROTOCOL instance that is associated with the PCI controller.

Field Documentation

EFI_PCI_IO_PROTOCOL_ALLOCATE_BUFFER _EFI_PCI_IO_PROTOCOL::AllocateBuffer

EFI_PCI_IO_PROTOCOL_ATTRIBUTES _EFI_PCI_IO_PROTOCOL::Attributes

EFI_PCI_IO_PROTOCOL_COPY_MEM _EFI_PCI_IO_PROTOCOL::CopyMem

EFI_PCI_IO_PROTOCOL_FLUSH _EFI_PCI_IO_PROTOCOL::Flush

EFI_PCI_IO_PROTOCOL_FREE_BUFFER _EFI_PCI_IO_PROTOCOL::FreeBuffer

EFI_PCI_IO_PROTOCOL_GET_BAR_ATTRIBUTES _EFI_PCI_IO_PROTOCOL::GetBarAttributes

EFI_PCI_IO_PROTOCOL_GET_LOCATION _EFI_PCI_IO_PROTOCOL::GetLocation

EFI_PCI_IO_PROTOCOL_ACCESS _EFI_PCI_IO_PROTOCOL::Io

EFI_PCI_IO_PROTOCOL_MAP _EFI_PCI_IO_PROTOCOL::Map

EFI_PCI_IO_PROTOCOL_ACCESS _EFI_PCI_IO_PROTOCOL::Mem

EFI_PCI_IO_PROTOCOL_CONFIG_ACCESS _EFI_PCI_IO_PROTOCOL::Pci

EFI_PCI_IO_PROTOCOL_POLL_IO_MEM _EFI_PCI_IO_PROTOCOL::PollIo

EFI_PCI_IO_PROTOCOL_POLL_IO_MEM _EFI_PCI_IO_PROTOCOL::PollMem

VOID* _EFI_PCI_IO_PROTOCOL::RomImage

A pointer to the in memory copy of the ROM image. The PCI Bus Driver is responsible for allocating memory for the ROM image, and copying the contents of the ROM to memory. The contents of this buffer are either from the PCI option ROM that can be accessed through the ROM BAR of the PCI controller, or it is from a platform-specific location. The Attributes() function can be used to determine from which of these two sources the RomImage buffer was initialized.

UINT64 _EFI_PCI_IO_PROTOCOL::RomSize

The size, in bytes, of the ROM image.

EFI_PCI_IO_PROTOCOL_SET_BAR_ATTRIBUTES _EFI_PCI_IO_PROTOCOL::SetBarAttributes

EFI_PCI_IO_PROTOCOL_UNMAP _EFI_PCI_IO_PROTOCOL::Unmap