TYAN S5652 - Page 139

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3.4.5.2 Intel® VT for Directed I/O (VT-d)
Intel® VT for Directed I/O
Enable/Disable Intel® Virtualization Technology for Directed I/O (VT-d) by reporting
the I/O device assignment to VMM through DMAR ACPI Tables.
Enabled / Disabled
Pre-boot DMA Protection
Enable DMA Protection in Pre-boot environment (If DMAR table is installed in DXE
and If VTD_INFO_PPI is installed in PEI.)
Enabled / Disabled
PCIe ACSCTL
Enabled/Disabled overwrite of PCI Access Control Services Control register in PCI
root ports.
Enabled / Disabled