Supermicro SUPERSERVER 9029GP-TNVRT, User Manual, Page: 84 / 145

SuperServer 9029GP-TNVRT User's Manual
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Prioritize TPH
If TPH is not disabled, select Enable to prioritize the TPL requests. The options are
Enable and
Disable .
Relaxed Ordering
Select Enable to allow certain transactions to be processed and completed before other
transactions that have already been enqueued. The options are
Disable and Enable.

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 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.
ACS Control
Select Enable to program Access Control Services (ACS) to Chipset PCI-E Root Port
Bridges. Select Disable to program Access Control Services to all PCI-E Root Port
Bridges.
The options are Enable and Disable .
If
Intel VT for Directed I/O
is enabled, the following settings are available.
Interrupt Remapping
Select Enable for Interrupt Remapping support to enhance system performance. The
options are
Enable and Disable.
Pass Through DMA
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.
ATS
Select Enable to enable ATS (Address Translation Services) support for the Non-Iscoh
VT-d engine to enhance system performance. The options are
Enable and Disable.
Posted Interrupt
Select Enable to support VT_D Posted Interrupt which will allow external interrupts to
be sent directly from a direct-assigned device to a client machine in non-root mode
to improve virtualization efficiency by simplifying interrupt migration and lessening the
need of physical interrupts. 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.