Intel Xeon L3406 CM80616005010AA User Manual
Product codes
CM80616005010AA
Datasheet, Volume 2
141
Processor Integrated I/O (IIO) Configuration Registers
3.5.2.2
VTD_CAP[0:1]—Intel
®
VT-d Chipset Capabilities Register
(Sheet 1 of 2)
Register: VTD_CAP[0:1]
Addr: MMIO
BAR: VTBAR
Offset:
08h, 1008h
Bit
Attr
Default
Description
63:56
RV
0
Reserved
55:54
RO
11b
Reserved
53:48
RO
09h
Max Address Mask Value (MAMV)
IIO supports MAMV value of 9h.
IIO supports MAMV value of 9h.
47:40
RO
Off:def
7h (non-
Isoch)
0h (Isoch)
Number of Fault Recording Registers
IIO supports 8 fault recording registers for non-isochronous Intel VT-d engine,
IIO supports 8 fault recording registers for non-isochronous Intel VT-d engine,
and 1 fault recording register for isochronous Intel VT-d engine.
39
RO
1
Page Selective Invalidation
Supported in IIO (Integrated I/O)
Supported in IIO (Integrated I/O)
38
RV
0
Reserved
37:34
RO
0h
Reserved
33:24
RO
10h
Fault Recording Register Offset
Fault registers are at offset 100h
Fault registers are at offset 100h
23
RWO
Off:def
08h: 0
else: 1
Isoch
This bit is set to 1 for isochronous Intel VT-d engine and 0 for the non-
This bit is set to 1 for isochronous Intel VT-d engine and 0 for the non-
isochronous engine.
22
RV
1
Reserved
21:16
RO
Off:def
08h: 2Fh
else: 26h
MGAW
For non-isochronous Intel VT-d engine, this field is set based on the setting of
For non-isochronous Intel VT-d engine, this field is set based on the setting of
the Non-Isoch GPA_LIMIT field in the VTGENCTRL register. Similarly for isoch
Intel VT-d engine, this field is set by the Isoch GPA_LIMIT field of the
VTGENCTRL register.
15
RV
0h
Reserved
14:13
RO
0h
Reserved
12:8
RO
Off:def
08h: 4h
else: 2h
SAGAW
IIO supports 3 level walks on the Isochronous Intel
IIO supports 3 level walks on the Isochronous Intel
VT-d engine and 4 level
walks on the non-Isochronous Intel
VT-d engine.
7
RO
0
TCM
IIO does not cache invalid pages.
IIO does not cache invalid pages.
6
RO
1
PHMR Support
IIO supports protected high memory range.
IIO supports protected high memory range.
5
RO
1
PLMR Support
IIO supports protected low memory range.
IIO supports protected low memory range.
4
RO
0
Reserved
3
RO
0
Advanced Fault Logging
IIO does not support advanced fault logging.
IIO does not support advanced fault logging.
2:0
RO
010b
Number of Domains Supported
IIO supports 256 domains with 8-bit domain ID
IIO supports 256 domains with 8-bit domain ID