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virtio
A standard way for a virtual machine to talk to fast, simplified virtual hardware.
When software runs inside a virtual machine, emulating real hardware faithfully is slow. Virtio is a paravirtualized interface: the guest OS knows it's virtualized and uses purpose-built virtual devices that are much faster than pretend real ones. mzOS2 uses virtio devices such as virtio-blk for storage.
See also
- virtio-blkThe virtio virtual disk — how a guest OS reads and writes storage inside a virtual machine.
- two-stage bootloaderA boot design where a tiny first program's only job is to load a bigger, smarter second program.