VirtIO

Um, and that's one way to, to sandbox a Linux kernel.

And then the other thing that they have, the other solution, um, for hardware is using an inverted VirtIO, and they call this vCage architecture.

And so inside of the... on the bare metal host, they run the VirtIO driver, which talks to a user space daemon, virtqueues, which then talks to a user-mode Linux install that then has in it a real driver that talks to real hardware.

And so, you know, it's kind of like Russian nesting dolls, where, you know, there's a Linux kernel.

Oh, there's a Linux kernel inside of that, and oh, there's a third one inside of there, and that's the one.