Intel G640T CM8062301002204 User Manual

278

Datasheet, Volume 2

This register indicates the various error status.

31:16

RO

0h

15:8

ROS-V

00h

Powerg

ood

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.
The value read from this field is undefined when the PPF field is 

clear.

7

RO

0h

6

RO

0b

Uncore

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 Device-IOTLBs 

implement this bit as RsvdZ.

5

RO

0b

Uncore

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.

4

RW1CS

0b

Powerg

ood

Invalidation Queue Error (IQE)
Hardware detected an error associated with the invalidation queue. 

This could be due to either a hardware error while fetching a 

descriptor from the invalidation queue, or hardware detecting an 

erroneous or invalid descriptor in the invalidation queue. At this 

time, a fault event may be generated based on the programming of 

the Fault Event Control register.
Hardware implementations not supporting queued invalidations 

implement this bit as reserved 

3

RO

0b

Uncore

Advanced Pending Fault (APF)
When this field is Clear, hardware sets this field when the first fault 

record (at index 0) is written to a fault log. At this time, a fault 

event is generated based on the programming of the Fault Event 

Control register.
Software writing 1 to this field clears it. 
Hardware implementations not supporting advanced fault logging 

implement this bit as reserved.

2

RO

0b

Uncore

Advanced Fault Overflow (AFO)
Hardware sets this field to indicate advanced fault log overflow 

condition. At this time, a fault event is generated based on the 

programming of the Fault Event Control register.
Software writing 1 to this field clears it.
Hardware implementations not supporting advanced fault logging 

implement this bit as reserved.