AC82G41SLGQ3 Datasheet, PDF (506/604 Pages) Intel Corporation – Intel® 4 Series Chipset Family

Intel^® Virtualization Technology for Directed I/O Registers (D0:F0) (Intel^® 82Q45 GMCH Only)
12.3.8
FSTS_REG—Fault Status Register
B/D/F/Type:
Address Offset:
Default Value:
Access:
Size:
0/2/0/GFXVTBAR
34-37h
00000000h
RO, R/WC/P, RO/P
32 bits
This register indicates the primary fault logging status.
Bit
31:16
Access
RO
15:8
RO/P
7
RO
6
RO
5
RO
Default
Value
0s
0s
0b
0b
0b
RST/PWR
Description
Core
Core
Core
Core
Core
Reserved
Fault Record Index (FRI): This field is valid only when
the PPF field is set.
The FRI field indicates the index (from base) of the fault
recording register to which the first pending fault was
recorded when the PPF field was set by hardware.
Valid values for this field are from 0 to N, where N is the
value reported through NFR field in the Capability register.
The value read from this field is undefined when the PPF
field is clear.
Reserved
Invalidation Time-out Error (ITE): Hardware detected
a Device-IOTLB invalidation completion time-out. At this
time, a fault event may be generated based on the
programming of the Fault Event Control register.
Hardware implementations not supporting Device-IOTLBs
implement this bit as Reserved.
NOTE: This field is reserved as this feature is not
supported.
Invalidation Completion Error (ICE): Hardware
received an unexpected or invalid Device-IOTLB
invalidation completion. This could be due to either an
invalid ITag or invalid source-ID in an invalidation
completion response. At this time, a fault event may be
generated based on the programming of the Fault Event
Control register.
Hardware implementations not supporting Device-IOTLBs
implement this bit as Reserved.
NOTE: This field is reserved as this feature is not
supported.
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