December 23, 20232 yr I recently purchased a new server. I would like to use it to make a graphics card passthrough to a Windows VM. However, I have not yet succeeded in activating IOMMU. Specifications of the server: XPC cube SH570R8 -CPU: Intel Core i5-11600k -Motherboard: Shuttle SH570 -GPU: Nvidia Geforce RTX 3060 VT-d is present and activated in the bios. When I deactivate it, it changes from 'Disabled' to 'Not available' in Unraid. According to Intel ARK, the processor is VT-d capable. I couldn't find any information about the motherboard online, but I don't think it should be a problem because the option is displayed in the bios by default. I have also updated the bios to the latest version, but without success. In addition, as already mentioned in other posts, I have already adjusted the following settings in the syslinux.cfg file as a test. iommu=pt iommu=1 iommu=pt iommu=1 intel_iommu=on iommu=1 iommu=pt intel_iommu=on Have any of you already had a similar problem or do you know what the problem could be? I would be very grateful for an answer s5-diagnostics-20231223-1904.zip
December 24, 20232 yr Community Expert 8 hours ago, janiszesiger said: I recently purchased a new server. I would like to use it to make a graphics card passthrough to a Windows VM. However, I have not yet succeeded in activating IOMMU. Specifications of the server: XPC cube SH570R8 -CPU: Intel Core i5-11600k -Motherboard: Shuttle SH570 -GPU: Nvidia Geforce RTX 3060 VT-d is present and activated in the bios. When I deactivate it, it changes from 'Disabled' to 'Not available' in Unraid. According to Intel ARK, the processor is VT-d capable. I couldn't find any information about the motherboard online, but I don't think it should be a problem because the option is displayed in the bios by default. I have also updated the bios to the latest version, but without success. In addition, as already mentioned in other posts, I have already adjusted the following settings in the syslinux.cfg file as a test. iommu=pt iommu=1 iommu=pt iommu=1 intel_iommu=on iommu=1 iommu=pt intel_iommu=on Have any of you already had a similar problem or do you know what the problem could be? I would be very grateful for an answer s5-diagnostics-20231223-1904.zip 63.08 kB · 0 downloads The OS is not seeing IOMMU groups for some reason. I guess this returns nothing when you run on a command line? find /sys/kernel/iommu_groups/ -type l Have you tried enabling all options here below active processor cores? CPU support vt-d. Have you raised a support call with the vendor?
December 24, 20232 yr Author 4 hours ago, SimonF said: The OS is not seeing IOMMU groups for some reason. I guess this returns nothing when you run on a command line? find /sys/kernel/iommu_groups/ -type l Have you tried enabling all options here below active processor cores? CPU support vt-d. Have you raised a support call with the vendor? So, as you thought find /sys/kernel/iommu_groups/ -type l does not return anything. Yes, I have tried to activate everything in the bios under Active Processor Cores, This was also the default setting. The Support could only assure me that this model supports VT-d, but could not provide any further specific information.
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