> I would really like to know if my x86 'linux PC', is actually running another 'hypervisor' OS that runs Linux - it seems like a recipe for security vulnerabil

> I would really like to know if my x86 'linux PC', is actually running another 'hypervisor' OS that runs Linux - it seems like a recipe for security vulnerabilities. There's not so much a "hypervisor" OS, but instead a congealed set of many different OSes, some realtime OSes, some possibly old Linux variants, some possibly closed source proprietary one-off OSes. I suggest taking a look at the talk Bryan mentioned: https://www.youtube.com/watch?v=36myc8wQhLo https://www.youtube.com/watch?v=36myc8wQhLo