OpenBSD has its own hypervisor (vmm) for few years. Its primary goal is to run OpenBSD guests. Recently I played around vmm to create a minimal virtual machine without a virtual disk! It is useful when you need to create lots of similar virtual machines without worrying about accidental data corruption by them.

Virtual machine managers need a start point to start. The most obvious way is a firmware which detects and loads boot loader and other option is the boot loader itself. However some virtual machine managers (like OpenBSD vmm) are capable of loading a kernel directly. …


Ali Farzanrad

UNIX and C lover

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