[seL4] seL4 as Xen guest / AWS

Has anyone managed to run seL4 as a Xen HVM guest? I was more specifically curious about running seL4 on an EC2 instance. I was curious about the possibility of using seL4 as the host OS for a "unikernel"-like deployment of a Rust application split into a small set of services living in different capability spaces (e.g. network, key storage / crypto) -- Tony Arcieri