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Virtualization

Stephen M. Reaves

::

2024-01-24

Notes about Lecture 3a for CS-6210

Summary

Hypervisors

Operating System of Operating Systems = Hypervisor (or VMM)

Two Types:

Native Hypervisors offer best performance

Connecting the Dots

Full Virtualization

Leave guest OS untouched

Para Virtualization

Modify source code to make it away that it is a guest

As far as applications are concerned, nothing is changed because the upper interfaces are left intact

Only less than 2% of code needs to be changed