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by zamadatix 1585 days ago
App --syscall --> kernel --hypercall--> kernel

App --"syscall"--> gVisor --syscall--> kernel

Unikernel --hypercall--> kernel

Though ideally something like SR-IOV would come into play and they hypervisor is just scheduling shared compute. Of course there is theory and reality and reality is unikernels never really caught on for many reasons while the normal stack just got optimized enough.