X11DPT-L User's Manual
74
IOAT Configuration
Disable TPH
Transparent Hugepages is a Linux memory management system that enables com-
munication in larger blocks (pages). Enabling this feature will increase performance.
The options are
No
and Yes.
Prioritize TPH
Use this feature to enable Prioritize TPH support. The options are Enable and
Disable
.
Relaxed Ordering
Select Enable to enable Relaxed Ordering support which will allow certain transactions
to violate the strict-ordering rules of PCI bus for a transaction to be completed prior
to 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 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
Enabled
and Disabled.
ACS Control
This feature allows users to choose whether they want to enable or disable PCIe Access
Control Services (ACS) Extended Capability. The options are
Enabled
and Disabled.
Interrupt Remapping
Select Enable for Interrupt Remapping support to enhance system performance. The
options are
Enable
and Disable.
PassThrough DMA
Use this feature to allow devices such as network cards to access the system memory
without using a processor. Select Enable to use the Non-Isoch VT_D Engine Pass
Through Direct Memory Access (DMA) support. The options are
Enable
and Disable.
ATS
Use this feature to enable Non-Isoch VT-d Engine Address Translation Services (ATS)
support. ATS translates virtual addresses to physical addresses. 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)
Use this feature to maintain setting coherency between processors or other devices.
Select Enable for the Non-Iscoh VT-d engine to pass through DMA to enhance system
performance. The options are
Enable
and Disable.
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