Supermicro sys-5018r-м [95/130] Intel vt for directed i o vt d

Chapter 7: BIOS

7-13

Relaxed Ordering

Select Enable to enable Relaxed Ordering support which will allow certain trans-

actions to violate the strict-ordering rules of PCI and 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 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.

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.

Coherency Support (Isoch)

Select Enable for the Iscoh VT-d engine to pass through ATS to enhance system

performance. The options are Enable and Disable.

QPI (Quick Path Interconnect) Conguration

QPI Status

The following information will display:

•Number of CPU

•Number of IIO

•Current QPI Link Speed

•Current QPI Link Frequency

•QPI Global MMIO Low Base/Limit