They are most assuredly using qemu. It's been my experience that when most people say "KVM" they usually are referring to the whole libvirt ecosystem. I assum

They are most assuredly using qemu. It's been my experience that when most people say "KVM" they usually are referring to the whole libvirt ecosystem. I assume that's the case here. I think of it very analogously to how people say "linux" to refer to a full OS/distro such as Fedora. Though "linux" is just a kernel, it's become common parlance.