Intel VT for Directed I/O (VT-d) Menu

►Intel VT for Directed I/O (VT-d)

Note: This submenu is NOT available when "Workload Profile" is set to Virtualization.

Pre-boot DMA Protection

Select Enabled to establish DMA protection during pre-boot processing by setting DMA_CTRL_PLATFORM_OPT_IN_FLAG in the DMAR ACPI table. The options are Enabled and Disabled. (DMA is the abbreviation for Direct Memory Access. DMAR is the abbreviation for DMA Remapping Reporting.)

PCIe ACSCTL

Select Enabled to program ACS control to Chipset PCIe Root Port bridges. Select Disabled to program ACS control to all PCIe Root Port bridges. The options are Enabled and Disabled.