Without analysing the bios we cant know, it will be something like this regarding IIO (Intel)
AMD counterpart is SR-IOV and IOMMU support
Seems that the AMD EPYC Embedded platform supports it but it all depends on the bios and such mb design…
Here’s an example of a Supermicro with such feature
Modern AMI Aptio V core bios wont accept modifications with current “leaked” versions of AMIBCP…you can try.
An alternative tools here:
[TOOL] UEFI Editor - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum (level1techs.com)
Anything related to the tools, post on the related thread, not here.
Good luck