Specifications

112

UINT16 PnPInstallationCheckOffset;

UINT32 EfiSystemTable;

UINT32 OemIdStringPointer;

UINT32 AcpiRsdPtrPointer;

UINT16 OemRevision;

UINT32 E820Pointer;

UINT32 E820Length;

UINT32 IrqRoutingTablePointer;

UINT32 IrqRoutingTableLength;

UINT32 MpTablePtr;

UINT32 MpTableLength;

UINT16 OemIntSegment;

UINT16 OemIntOffset;

UINT16 Oem32Segment;

UINT16 Oem32Offset;

UINT16 Oem16Segment;

UINT16 Oem16Offset;

UINT16 TpmSegment;

UINT16 TpmOffset;

UINT32 IbvPointer;

UINT32 PciExpressBase;

UINT8 LastPciBus;

UINT32 UmaAddress;

UINT32 UmaSize;

UINT32 HiPermanentMemoryAddress;

UINT32 HiPermanentMemorySize;

} EFI_COMPATIBILITY16_TABLE;

Parameters

Signature

The string “$EFI” denotes the start of the EfiCompatibility table. Byte 0 is “I,” byte 1

is “F,” byte 2 is “E,” and byte 3 is “$” and is normally accessed as a DWORD or

UINT32.