Simple kernels and virtualizers

[Borneq]

I am searching simple, educative nano kernels and simple virtualizers.For example, kernel can be https://github.com/hach-que/Kernel.git or https://github.com/jtsiomb/kernel.git while I am searching simple virtualizers a lot of smaller than QEMU or VirtualBox (not need emulation another architecture).

[mbozzi]

Have you looked on osdev.org?
http://forum.osdev.org/

[Borneq]

Thanks, osdev it is good place.