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Cake day: September 30th, 2025

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  • SR-IOV works by presenting one device as many, which you can passthrough one of those to your VM. Meaning SR-IOV only works through PCIe passthrough, so you’d have to figure that out first. The GPU guides should get you most of the way there.

    Some distros include an ACS patch into their kernel (e.g. Proxmox, and I think CachyOS), which lets you passthrough devices without hardware support (but lacking some security features).

    I believe it might be possible to ‘passthrough’ the VF from the host without PCIe passthrough (I’ve only done this with containers though), but performance is often worse than just using a bridge.