Chapter 6: BIOS
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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
Enable
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.
Intel VMD Technology
Intel VMD for Volume Management Device on CPU1
VMD Config for PStack0
Intel VMD for Volume Management Device
Select Enable to use the Intel Volume Management Device Technology for this stack.
The options are
Disable
and Enable.
*If the item "Intel VMD for Volume Management Device" above is set to Enable,
the following items will be dislayed:
VMD port 1A~VMD port 1D (Available when the device is detected by the
system)
Select Enable to use the Intel Volume Management Device Technology for this spe-
cific root port. The options are
Disable
and Enable.
Hot Plug Capable (Available when the device is detected by the system)
Use this feature to enable hot plug support for PCIe root ports 1A~1D. The options
are
Disable
and Enable.