AC82G41SLGQ3 Datasheet, PDF (431/604 Pages) Intel Corporation – Intel® 4 Series Chipset Family

Intel^® Virtualization Technology for Directed I/O Registers (D0:F0) (Intel^® 82Q45 GMCH Only)
Bit
Access
Default
Value
RST/PWR
Description
3
RO
2
RO
1
RO
0
RO
Interrupt Remapping Support (IR):
0 = Hardware does not support interrupt remapping.
0b
Core
1 = Hardware supports interrupt remapping.
Implementations reporting this field as Set must also
support Queued Invalidation (QI = 1b).
Device IOTLB Support (DI):
0 = • 0: Hardware does not support device- IOTLBs.
0b
Core
1 = • 1: Hardware supports Device-IOTLBs.
Implementations reporting this field as Set must also
support Queued Invalidation (QI = 1b).
Queued Invalidation Support (QI):
0b
Core
0 = Hardware does not support queued invalidations.
1 = Hardware supports queued invalidations.
Coherency (C):
0 = Hardware accesses to the root, context, and page
table structures are non-coherent (non-snoop)
0b
Core
1 = Hardware accesses to the root, context, and page
table structures are coherent (snoop).
Hardware writes to the advanced fault log is required to be
coherent.
Datasheet
431