Supermicro SuperServer SYS-1029U-TN12RV User Manual page 90

SuperServer 1029U-TN12RV User's Manual
Intel® VT for Directed I/O (VT-d)

Intel VT for Directed I/O (VT-d)
®
Select Enable to use Intel® Virtualization Technology support for Direct I/O VT-d support
by reporting the I/O device assignments to the VMM (Virtual Machine Monitor) through
the DMAR ACPI Tables. This feature offers fully-protected I/O resource sharing across
Intel® platforms, providing greater reliability, security and availability in networking and
data-sharing. The options are Enable and Disable.
Interrupt Remapping
Select Enable for Interrupt Remapping support to enhance system performance. The
options are Enable and Disable.
PassThrough DMA
Select Enable to use the Non-Isoch VT_D engine pass through DMA support. The
options are Enable and Disable.
ATS
Select Enable to use the Non-Isoch VT_D engine ATS support. The options are En-
able and Disable.
Posted Interrupt
Use this feature to enable VT_D posted interrupt. The options are Enable and Disable.
Coherency Support (Non-Isoch)
Select Enable for the Non-Iscoh VT-d engine to pass through DMA (Direct Memory
Access) to enhance system performance. The options are Enable and Disable.
Intel® VMD technology

This section describes the configuration settings for the Intel® Volume Management
Device (VMD) Technology.
Note: After you've enabled VMD on a PCI-E slot of your choice, this PCI-E slot will
be dedicated for VMD use only, and it will no longer support any PCI-E device. To re-
activate this slot for PCI-E use, please disable VMD.
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