Iio Configuration - Gigabyte MD72-HB2 User Manual

2-3-5 IIO Configuration

Parameter
IIO Configuration
®
Intel VT for Directed I/O (VT-d)
BIOS Setup
Description
Press [Enter] to configure advanced items.
®
Intel VT for Directed I/O
Š
– Enable/Disable the Intel VT for Directed I/O (VT-d) support
function by reporting the I/O device assignment to VMM through
DMAR ACPI Tables.
– Options available: Enable, Disable. Default setting is Enable.
ACS Control
Š
– Enable: Programs ACS only to Chipset PCIe Root Ports Bridges.
– Disable: Programs ACS to all PCIe bridges.
– Default setting is Enable.
DMA Control Opt-In Flag
Š
– Enable/Disable DMA_CTRL_PLATFORM_OPT_IN_FLAG
in DMAR table in ACPI. Not compatible with Direct Device
Assignment (DDA).
– Options available: Enable, Disable. Default setting is Disable.
Interrupt Remapping
Š
– Enable/Disable the interrupt remapping support function.
– Options available: Auto, Enable, Disable. Default setting is Auto.
x2APIC Opt Out
Š
– Options available: Enable, Disable. Default setting is Disable.
Pre-boot DMA Protection
Š
– Options available: Enable, Disable. Default setting is Disable.
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