July 11, 20169 yr the CPU having to support VT-d and VT-x? I'm thinking of merging my gaming rig and my NAS into one and doing GPU pass-thru to a windows VM and all that cool stuff.
July 11, 20169 yr Nope, those should cover it. Obviously you need to have enough cpu cores to dedicate some to the VM while retaining some for UnRaid and any dockers. Expect roughly a 10% decrease in performance on your GPU when running in a VM. Sent from my LG-D855 using Tapatalk
July 11, 20169 yr The System must also allow for the devices to be split into different IOMMU groups as you cannot split a IOMMU group across VMs.
July 12, 20169 yr Author The System must also allow for the devices to be split into different IOMMU groups as you cannot split a IOMMU group across VMs. How do I know if my system supports this?
July 12, 20169 yr How do I know if my system supports this? If you have a 26xx Xeon CPU or one of these Intel i7 CPUs your system should support it. (There are other CPUs which support ACS as well) If you have any other cpu your system might not support it, but some motherboards (i think the ASUS X99 Deluxe does that) have ACS Support even on CPUs which dont support ACS/IOMMU Groups. If your CPU and motherboard (your motherboard does not have to support ACS if your CPU supports ACS) does not support ACS/IOMMU groups you have to enable ACS override in the unraid settings.
July 12, 20169 yr Have a read here about iommu and PCIe Access Control Services (ACS) http://vfio.blogspot.com/2014/08/iommu-groups-inside-and-out.html
Archived
This topic is now archived and is closed to further replies.