Intel Extensible Firmware Interface - Manual (Page 462)

Extensible Firmware Interface Specification
12-44 12/01/02 Version 1.10
Table 12-7. PCI Root Bridge Device Path for Bridge #2 in a Server System
Byte
Offset Byte
Length
Data
Description
0x00 0x01 0x02 Generic Device Path Header – Type ACPI Device Path
0x01 0x01 0x01 Sub type – ACPI Device Path
0x02 0x02 0x0C Length – 0x0C bytes
0x04 0x04 0x41D0,
0x0A03
_HID PNP0A03 – 0x41D0 represents a compressed string ‘PNP’ and is in
the low order bytes
0x08 0x04 0x0002 _UID
0x0C 0x01 0xFF Generic Device Path Header – Type End of Hardware Device Path
0x0D 0x01 0xFF Sub type – End of Entire Device Path
0x0E 0x02 0x04 Length – 0x04 bytes
Table 12-8. PCI Root Bridge Device Path for Bridge #3 in a Server System
Byte
Offset Byte
Length
Data
Description
0x00 0x01 0x02 Generic Device Path Header – Type ACPI Device Path
0x01 0x01 0x01 Sub type – ACPI Device Path
0x02 0x02 0x0C Length – 0x0C bytes
0x04 0x04 0x41D0,
0x0A03
_HID PNP0A03 – 0x41D0 represents a compressed string ‘PNP’ and is in
the low order bytes.
0x08 0x04 0x0003 _UID
0x0C 0x01 0xFF Generic Device Path Header – Type End of Hardware Device Path
0x0D 0x01 0xFF Sub type – End of Entire Device Path
0x0E 0x02 0x04 Length – 0x04 bytes