Walter did yo realy go Ohhhh?

[David Jeske]

Nick Sabalausky Wrote:
> ... From the security perspective, for instance, there are differences 
> (With a VM, you can sanbox whatever you want, however you want,
> without requiring a physical CPU that supports the appropriate security
> features.) 

It seems that security/verifiability, and ease of executing on an unknown target processor are the two major benefits of a VM.

However, you might be interested in looking at software based fault isolation if you have not seen it. It may make you reconsider how much you need a VM to implement code security. There is a pretty simple explanation here:

  http://www.cs.unm.edu/~riesen/prop/node16.html