RTFM VMWare question

[gaf at blu.org (Jerry Feldman)]

Actually, the 370 instruction set was never written with VM in mind either. 
Each 370 had a different internal architechture. Most of the 370s had 
support for VM in the microcode. Additionally, production OSs like VS1 and 
DOS(370 DOS not PC DOS) had additional handles for VM. 
There are some interesting issues:
Let's say what heppens when an application page faults. Does the VM allow 
the OS to select another app or does the VM place the entire OS on a page 
wait. 
On 22 Jul 2002 at 16:48, Nathan Meyers wrote:
> I hope my answer didn't read like an attempt at a VM tutorial :-).
> 
> As I understand it, the Intel architecture was never designed to support
> VMs the way systems like VM370 did, and the VMWare folks had to be pretty
> clever about making it work.

-- 
Jerry Feldman <gaf at blu.org>
Associate Director
Boston Linux and Unix user group
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