Supermicro X13DEG-PVC User Manual page 112

Super X13DEG-PVC 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 Virtual Machine Monitor (VMM) 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.
Pre-boot DMA (Direct Memory Access) Protection
Select Enable to enable DMA protection support in the pre-boot environment, which is available when the DMAR table is
installed in the DXE (Driver Execution Environment), and the VID_INF0_PPI is installed in PEI. The options are Enable
and Disable.
Interrupt Remapping (Available when "Intel VT for Directed I/O (VT-d)" is set to
Enable)
Select Enable to support I/O DMA transfer remapping and device-generated interrupts. The options are Auto, Enable,
and Disable.
PCIe ACSCTL (Available when "Intel VT for Directed I/O (VT-d)" is set to Enable)
Select Enable to program ACS control to Chipset PCIe Root Port bridges. Select Disable to program ACS control to all
PCIe Root Port bridges. The options are Disable and Enable.
Intel® VMD Technology
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This section describes the configuration settings for the Intel VMD technology.
Note 1: After you've enabled VMD in the BIOS on a PCIe slot, this PCIe slot will be
dedicated for VMD use only, and it will no longer support any PCIe device. To re-activate
this slot for PCIe use, please disable VMD in the BIOS.
Note 2: The number of PCIe slots and the slot naming can differ depending on the
PCIe devices connected to your motherboard.
NVMe Mode Switch
When this feature is set to Auto, VMD support will be automatically enabled when a VROC key is detected by the BIOS.
The options are Manual, VMD, and Auto.
Intel® VMD for Volume Management Device on Socket 0 (CPU1)

(Available when "NVMe Mode Switch" is set to Manual)
VMD Config for PCH ports
Enable/Disable VMD
Select Enable to enable the Intel Volume Management Device (VMD) technology support for the root port specified. The
options are Disable and Enable.
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