Supermicro B2SD2-8C-TF User Manual page 58

Super B2SD2(1)-8C/12C/16C-TF MicroBlade Module User's Manual
Intel® VT for Directed I/O (VT-d)
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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 Enable and Disable.
*If the feature above is set to Enable, the five features below will be available
for configuration:
Interrupt Remapping
Use this feature to enable Interrupt Remapping support, which detects and controls
external interrupt requests. 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-Isoch VT-d engine to pass through DMA to enhance system
performance. The options are Enable and Disable.
PCI-E Completion Timeout Disable
Use this feature to enable or disable the Completion Timeout. The options are Yes,
No, and Per-Port.
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