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The following information is displayed:
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PCIe Port Link Status
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PCIe Port Link Max
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PCIe Port Link Speed
Data Link Feature Exchange
Use this feature to enable/disable the PCIe port to enter PCIe 4.0 DL_Feature ne-
gotiation state. The options are Disable and Enable.
PCIe Port Max Payload Size
Use this feature to set the maximum payload size supported in Direct Media Inter-
face (DMI) device capabilities register for the device installed in the PCIe port. The
options are 128B, 256B, 512B, and Auto.
Equalization Bypass To Highest Rate
Set this feature to Enable to reduce the link training time for PCIe 5.0 device by skip-
ping equalization of intermediate data rates. The options are Disable and Enable.
IOAT Configuration
Relaxed Ordering
Select Yes to allow certain transactions to be processed and completed before other
transactions that have already been enqueued. The options are No and Yes.
Intel VT for Directed I/O (VT-d)
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. (DMA is the abbreviation for Direct
Memory Access. DMAR is the abbreviation for DMA Remapping Reporting.)
Pre-boot DMA Protection (Available when "Intel VT for Directed I/O (VT-d)" is
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.
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Chapter 4: UEFI BIOS
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