Processor Configuration Registers
2.18.31 FRCDH_REG—Fault Recording High Register
This register records fault information when primary fault logging is active. Hardware
reports the number and location of fault recording registers through the Capability
register. This register is relevant only for primary fault logging.
This register is sticky and can be cleared only through power good reset or by software
clearing the RW1C fields by writing a 1.
B/D/F/Type:
Address Offset:
Reset Value:
Access:
0/0/0/GFXVTBAR
208–20Fh
0000000000000000h
RO, RW1CS, ROS-V
64 bits
Size:
BIOS Optimal Default
0000000000000000h
Reset
Value
RST/
PWR
Bit
Access
Description
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).
63
RW1CS
0b
Powergood
Powergood
Software writes the value read from this field to clear it.
Type (T)
Type of the faulted request:
0 = Write request
62
ROS-V
0b
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.
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.
61:60
RO
00b
Uncore
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
39:32
31:16
15:0
RO
ROS-V
RO
0h
00h
0h
Reserved (RSVD)
Fault Reason (FR)
This field provides the reason for the fault. This field is
relevant only when the F field is set.
Powergood
Powergood
Reserved (RSVD)
Source Identifier (SID)
This field provides the Requester-id associated with the fault
condition. This field is relevant only when the F field is set.
000000000
0000000b
ROS-V
294
Datasheet, Volume 2
INTEL [ INTEL ]
