63

0x0

RW/1C

Fault (F)

Hardware sets this field to indicate a fault is logged in this Fault Recording register. The F field is set by hardware after the details of the fault is recorded in other fields

When this field is Set, hardware may collapse additional faults from the same source-id (SID)

Software writes the value read from this field to Clear it.

62

0x0

RO/V

Type (T)

Type of the faulted request:

• 0=0: Write request or Page (PRS) Request
• 1=1: Read request or AtomicOp request

This field is relevant only when the F field is Set, and when the fault reason (FR) indicates one of the DMA-remapping fault conditions.

61:60

0x0

RO/V

Address Type (AT)

This field captures the AT field from the faulted DMA request

Hardware implementations not supporting Device-IOTLBs (DI field Clear in Extended Capability register) treat this field as RsvdZ

When supported, this field is valid only when the F field is Set, and when the fault reason (FR) indicates one of the DMA-remapping fault conditions.

59:40

0x0

RO/V

PASID Value (PV)

PASID value in the faulted request. This field is relevant only when the PP field is set. Hardware implementations not supporting PASID (PASID field Clear in Extended Capability register) implement this field as RsvdZ.

39:32

0x0

RO/V

Fault Reason (FR)

Reason for the fault

This field is relevant only when the F field is set.

31

0x0

RO/V

PASID Present (PP)

When set, indicates the faulted request has a PASID tag. The value of the PASID field is reported in the PASID Value (PV) field. This field is relevant only when the F field is Set, and when the fault reason (FR) indicates one of the non-recoverable address translation fault conditions. Hardware implementations not supporting PASID (PASID field Clear in Extended Capability register) implement this field as RsvdZ.

30

0x0

RO/V

Execute Permission Requested (EXE)

When set, indicates Execute permission was requested by the faulted read request. This field is relevant only when the PP field and T field are both Set. Hardware implementations not supporting PASID (PASID field Clear in Extended Capability register) implement this field as RsvdZ.

29

0x0

RO/V

Privilege Mode Requested (PRIV)

When set, indicates Supervisor privilege was requested by the faulted request. This field is relevant only when the PP field is Set. Hardware implementations not supporting PASID (PASID field Clear in Extended Capability register) implement this field as RsvdZ.

28:16

0h

RO

Reserved

15:0

0x0

RO/V

Source Identifier (SID)

Requester-id associated with the fault condition

This field is relevant only when the F field is set.