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MP Configuration Table
Version 1.4 4-13
2. No Interrupt Assignment Entries are declared for any of the bus source interrupts, and the
operating system uses some other bus-specific knowledge of bus interrupt schemes in order to
support the bus. This operating system bus-specific knowledge is beyond the scope of this
specification.
00H
04H
31 07815162324
ENTRY TYPE
3
INTERRUPT
TYPE
RESERVED
SOURCE
BUS ID
SOURCE BUS
IRQ
DESTINATION
I/O APIC ID
DESTINATION
I/O APIC INTIN#
P
O
E
L
31 07815162324
I/O INTERRUPT FLAG
Figure 4-7. I/O Interrupt Entry