Once I read an LWN article about KVM [1] and it introduced a tool called kvmtool [2] and a tiny test program illustrating how to use the KVM API. However the sample program was too simple and the latest kvmtool seemed too complex for my taste.

Wiser seems simple enough (5 small enough .c files). If it is capable to boot Linux, it can be a great learning material. Great job!

- [1] https://lwn.net/Articles/658511/

- [2] https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool...