add a boot entry.

returns list of boot entries (BootXXXX)note that BootCurrent, BootOptionSupport, BootNext, BootOrder, etc do not count as boot entries.

Return all boot-related uefi vars.

Returns all efi variables.

Returns true only if all given filters return true.

return true if the system booted via UEFI (as opposed to legacy).

A VarNameFilter passing boot entries.

A VarNameFilter passing boot-related vars.

https://gist.github.com/bradleypeabody/185b1d7ed6c0c2ab6cec.

Check if given drive contains /efi/boot/bootx64.efi (case insensitive).

Returns a filter negating the given filter.

Gets BootXXXX var, if it exists.

Reads BootCurrent, and from there gets the BootXXXX var referenced.

Returns efi variables matching filter.

only for DppTypeHw?.

30.

27.

17.

31.

29.

3.

4.

6.

9.

12.

13.

19.

11.

32.

23.

documented as 32, likely 33.

22.

18.

2.

26.

14.

25.

24.

5.

15.

16.

10 //uart flow control, sas are subtypes.

20.

28.

0x02.

0x04 //p321.

0x01.

0x05 //media protocol i.e.

0x06.

0x07.

0x09.

0x08.

0x03.

0x02, pg 290.

0x05, pg 287.

0x01, pg 288.

0x04, pg 319.

0x03, pg 293.

A boot entry.

struct in EfiDevicePathProtocol for DppHTypePCI.

struct in EfiDevicePathProtocol for DppMTypeFilePath.if multiple are included in a load option, concatenate them.

struct in EfiDevicePathProtocol for DppMTypeHdd.

struct in EfiDevicePathProtocol for DppMTypePIWGFF.

struct in EfiDevicePathProtocol for DppMTypePIWGFV.

pg 293.

pg 300.

EfiDevicePathProtocolHdr - all variants start with the following three fields: typedef struct _EFI_DEVICE_PATH_PROTOCOL { UINT8 Type; UINT8 SubType; UINT8 Length[2]; } EFI_DEVICE_PATH_PROTOCOL; It seems that the only relevant Type (for booting) is media.

marks end of EfiDevicePathProtocol.

EfiLoadOption defines the data struct used for vars such as BootXXXX.

a generic efi var.

An EfiDevicePathProtocol identifies a device path.

we only define media and end subtypes; others exist in spec.

A type of function used to filter efi vars.