<div dir="ltr"><div><div><div>Seems like there's little information publicly available about the AM1 platform. As you can see here [1] there's plenty of information available for the Bolton FCH which is used in newer APUs, while the Hudson FCH is basically undocumented.<br><br></div>The BKDG for the Kabini platform [2] mentions two registers ("D0F0x98_x26 ORB IOMMU Control 0" and "D0F0x98_x27 ORB IOMMU Control 1") which suggests the platform has an IOMMU.<br><br></div><div>A reddit thread [3] quotes a customer service response from AMD which confirms the platform has an IOMMU but the ability to use it depends on the mainboard being used:<br><br>"Yes the processor AMD AM1 5350 supports PCI Pass through via
AMD-Vi/IOMMU. However, we request you to contact the motherboard
manufacturer and check if the Motherboard and Chipset support IOMMU."</div><div><br></div><div>Maybe the best way to see this is to try virtualizing some hardware?<br></div><div><br></div>Regards,<br></div>Gergely<br><br>[1] <a href="https://developer.amd.com/resources/developer-guides-manuals/">https://developer.amd.com/resources/developer-guides-manuals/</a><br>[2] <a href="http://support.amd.com/TechDocs/48751_16h_bkdg.pdf">http://support.amd.com/TechDocs/48751_16h_bkdg.pdf</a><br>[3] <a href="https://www.reddit.com/r/homelab/comments/4j5zf8/amd_apu_a1_5350_proxmox_ve/">https://www.reddit.com/r/homelab/comments/4j5zf8/amd_apu_a1_5350_proxmox_ve/</a><br><br></div><div class="gmail_extra"><br><div class="gmail_quote">On 14 February 2018 at 00:20, <a href="mailto:Taiidan@gmx.com">Taiidan@gmx.com</a> <span dir="ltr"><<a href="mailto:Taiidan@gmx.com" target="_blank">Taiidan@gmx.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Has anyone figured out if the AM1 platform has IOMMU? the OEM bios on the AM1ML has an option for it but it doesn't work.<br>
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The lack of that is really disappointing.<br>
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I am also unable to locate the spec sheets for the AM1 platform that would confirm this.<span class="HOEnZb"><font color="#888888"><br>
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