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5 pass-through dma, Pass-through dma, Chipset setup am5030 uefi bios – Kontron AM5030 uEFI User Manual

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Chipset Setup

AM5030 uEFI BIOS

Page 28

ID 1037-1209, Rev. 1.0

P R E L I M I N A R Y

4.1.5

Pass-through DMA

This function is used to enable/disable VT-d engine pass-through DMA support. DMA request
with untranslated addresses are processed as pass-through and will cause a DMA draining.

Note:

This function is available only when the function Intel(R) VT-d is set to Enabled.

Default setting: Enabled

SETTING

DESCRIPTION

Disable

Use this setting to disable Pass-through DMA support.

Enable

Use this setting to enable Pass-through DMA support.