acpi

package

v7.0.0+incompatible Latest Latest Go to latest Published: Aug 31, 2020 License: BSD-3-Clause Imports: 9 Imported by: 0

Details

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Repository

github.com/9elements/u-root

Documentation ¶

Overview ¶

Package acpi can find and parse the RSDP pointer and struct.

Index ¶

func NewRSDP(addr uintptr, len uint) []byte
type RSDP

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func NewRSDP ¶

func NewRSDP(addr uintptr, len uint) []byte

NewRSDP returns a new and partially initialized RSDP, setting only the defaultRSDP values, address, length, and signature.

Types ¶

type RSDP ¶

type RSDP struct {
	// contains filtered or unexported fields
}

RSDP is the v2 version of the ACPI RSDP struct.

func GetRSDP ¶

func GetRSDP() (*RSDP, error)

GetRSDP finds the RSDP pointer and struct in memory.

It is able to use several methods, because there is no consistency about how it is done.

func GetRSDPEBDA ¶

func GetRSDPEBDA() (*RSDP, error)

GetRSDPEBDA finds the RSDP in the EBDA.

func GetRSDPEFI ¶

func GetRSDPEFI() (*RSDP, error)

GetRSDPEFI finds the RSDP in the EFI System Table.

func GetRSDPMem ¶

func GetRSDPMem() (*RSDP, error)

GetRSDPMem is the option of last choice, it just grovels through the e0000-ffff0 area, 16 bytes at a time, trying to find an RSDP. These are well-known addresses for 20+ years.

func (*RSDP) AllData ¶

func (r *RSDP) AllData() []byte

AllData returns the RSDP as a []byte

func (*RSDP) Len ¶

func (r *RSDP) Len() uint32

Len returns the RSDP length

func (*RSDP) OEMID ¶

func (r *RSDP) OEMID() string

OEMID returns the RSDP OEMID

func (*RSDP) RSDPAddr ¶

func (r *RSDP) RSDPAddr() uint64

RSDPAddr returns the physical base address of the RSDP.

func (*RSDP) SDTAddr ¶

func (r *RSDP) SDTAddr() uint64

SDTAddr returns a base address or the [RX]SDT.

It will preferentially return the XSDT, but if that is 0 it will return the RSDT address.

func (*RSDP) Sig ¶

func (r *RSDP) Sig() string

Sig returns the RSDP signature

func (*RSDP) TableData ¶

func (r *RSDP) TableData() []byte

TableData returns the RSDP table data as a []byte

Source Files ¶

View all Source files

rsdp.go

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