Supermicro X13DET-B User Manual page 107

Pre-boot DMA Protection (Available when "Intel
set to Enable)
Select Enable to establish DMA protection during pre-boot processing by setting
DMA_CTRL_PLATFORM_OPT_IN_FLAG in the DMAR ACPI table. The options are
Enable and Disable.
Interrupt Remapping (Available when "Intel
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
Enable)
Select Enable to program ACS control to Chipset PCIe Root Port bridges. Select Dis-
able to program ACS control to all PCIe Root Port bridges. The options are Enable
and Disable.
Opt-Out Illegal MSI Mitigation (Available when "Intel
d)" is set to Enable)
If this feature is set to Enable, "Illegal OxzFEE Platform Mitigation" will be opted out.
The options are Enable and Disable.
Intel VMD Technology

®
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 (Available

®
when "NVMe Mode Switch" is set to Manual)
VMD Config for IOU 0
VT for Directed I/O (VT-d)" is
®
VT for Directed I/O (VT-d)" is set
®
VT for Directed I/O (VT-d)" is set to
®
VT for Directed I/O (VT-
®
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Chapter 4: UEFI BIOS