Good question. We use our own hypervisor[0] that's not KVM/QEMU. We don't have nested virtualization today so we don't follow the KubeVirt model, though we are discussing what CRDs like OxideInstance would look like for those that want to operate solely in Kubernetes manifests.
The core primitive on Oxide is the instance (virtual machine). We could support some container primitive, but that's a larger product direction discussion. Our host OS is Helios (Illumos) so there are details to iron out there regarding what abstractions we would build and expose to the users. Not impossible but not something we're currently pursuing either given that we have other immediate product asks.
If you're at a scale where compute density, power efficiency, security, and rack-level API management matters then that's where Oxide makes sense for you.
Could there theoretically be a swappable hypervisor for oxide some day? I'm imagining a oxide Linux distro of sorts running on the hosts, and using kvm for vms, but still oxide control plane bits downstream. Then you get nested virt and gpu support, and could maybe even virtualize a traditional oxide host. Like running multi-host vcenter clusters inside a single esxi, amazingly powerful lab scenarios, teardown is even fun
Switching to Linux and KVM would gain the ecosystem benefits but Oxide would lose control of the host OS which can impact our security stance. Better to tightly integrate at this layer and expose the primitives that are needed. It's not impossible, but we're already maintaining the existing Helios host OS. Adding another wouldn't be beneficial.
The core primitive on Oxide is the instance (virtual machine). We could support some container primitive, but that's a larger product direction discussion. Our host OS is Helios (Illumos) so there are details to iron out there regarding what abstractions we would build and expose to the users. Not impossible but not something we're currently pursuing either given that we have other immediate product asks.
If you're at a scale where compute density, power efficiency, security, and rack-level API management matters then that's where Oxide makes sense for you.
[0] https://github.com/oxidecomputer/propolis