alt Hacker NewsIn case all of this sounds interesting:
After skimming the article I noticed a large chunk of this article (specifically the bits on deattaching/attaching drivers, qemu and vfio) applies more or less to general GPU virtualization under Linux too!
1) Replace any "nvidia" for "amdgpu" for Team Red based setups when needed
2) The PCI ids are all different, so you'll have look them up with lspci yourselves
3) Note that with consumer GPU's you need to deattach and attach a pair of two devices (GPU video and GPU audio); else things might get a bit wonky
Thanks for the comment! You're right that a lot of the mechanics apply more generally. On point (3) specifically: we handle this by allocating at the IOMMU-group level rather than individual devices. Our allocator selects an IOMMU group and passes through all devices in that group (e.g., GPU video + audio), which avoids the partial-passthrough wonkiness you mentioned. For reference: https://github.com/ubicloud/ubicloud/blob/main/scheduling/al...