Chapter 4: BIOS
61
Coherency Support (Non-Isoch)
Use this feature to maintain setting coherency between processors or other devices.
Select Enable for the Non-Isoch VT-d engine to pass through DMA to enhance system
performance. The options are
Enable
and Disable.
Intel® VMD Technology
Intel
®
VMD for Volume Management Device on Socket 0
VMD Config for PStack0
Intel® VMD for Volume Management Device for PStack0
Select Enable to use the Intel Volume Management Device Technology for this stack.
The options are
Disable
and Enable.
*If the feature above is set to Enable, the following features will become avail-
able for configuration:
VMD port 1A/1B/1C/1D
Select Enable to use the Intel Volume Management Device Technology for this spe-
cific root port. The options are
Disable
and Enable.
Hot Plug Capable (Available when the device is detected by the system)
Use this feature to enable hot plug support for PCIe root ports 1A~1D. The options
are
Disable
and Enable.
CfgBar size
Use this feature to set up the VMD config BAR size. The default value is
25
.
CfgBar attribute
Use this feature to set up the VMD config BAR attribute. The default option is
64-bit
prefetchable
.
MemBar1 size
Use this feature to set up the VMD Memory BAR1 size. The default value is
25
.
MemBar1 attribute
Use this feature to set up the VMD config BAR attribute. The options are
32-bit
non-prefetchable
, 64-bit non-prefetchable, and 64-bit prefetchable.
