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by eru 967 days ago
> Or maybe xen / kvm are no longer called operating systems?

> I'm interested in having my code be responsible for thread scheduling and page tables - no OS layer to syscall into [...]

You might be confusing Xen and KVM here? Xen and KVM are rather different in this regard.

KVM runs on a full Linux kernel (as far as I know). But running your application as unikernels on top of Xen is more comparable to the old Exokernel concept.