Allows the user to boot off an unconventional device such as a PARTIES partition.
Checks if a traditional OpROM exists for this device.
Allows EFI to copy data to the area specified by GetLegacyRegion.
Performs a far call into Compatibility16 or traditional OpROM code.
Allows an external agent, such as BIOS Setup, to get the BBS data.
Allows EFI to reserve an area in the 0xE0000 or 0xF0000 block.
Loads a traditional OpROM in traditional OpROM address space.
Performs traditional software INT. See the Int86() function description.
Boots a traditional OS.
Performs all actions prior to boot. Used when booting an EFI-aware OS rather than a legacy OS.
Causes all legacy OpROMs to be shadowed.
Updates BDA to reflect the current EFI keyboard LED status.