Re: [Xen-devel] VMWare patents?

[Luciano Miguel Ferreira Rocha <strange@xxxxxxxxxxxxx>]

On Wed, Dec 15, 2004 at 04:18:32PM +0900, aq wrote:
> Hello,
> 
> I am reading some Virtual Machine papers, and found that VMWare has
> patented certain technology named MultipleWorlds. Anybody please tell
> me exactly what that MultipleWorlds is about? And is that only
> technology patentd by them?

http://www.vmware.com/news/releases/servers.html

> 
> One more question: VMWare use dynamic binary translator to emulate
> some "sensitive" instructions. If so, why their softwares are not
> always compatible with OSes? Is that because their solution is not
> perfect? (For example I remembered VMWare Workstation didnt support
> WinXP when WinXP first released. Only after sometime, they upgraded
> their software to support it)

I think it's due to optimizations (what and where is a translation
needed).

But you could get more information in a vmware related forum. ;)

Regards,
Luciano Rocha


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