As I understand it TinyKVM is so fast because it does not run a full Linux guest but rather a thin layer with just enough syscall compatibility to run single threaded Linux static binaries.

I’ve been running varnish/tinykvm using podman by using passing /dev/kvm into the container and adding myself to the kvm group. https://github.com/lrowe/deno_varnish?tab=readme-ov-file#run...

Maybe you would be better off with something like krun which is built to run OCI containers in a full Linux kvm guest. https://josecastillolema.github.io/podman-wasm-libkrun/