RE: [Xen-users] Xen to Desktop/Workstation questions

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: Muli Ben-Yehuda [mailto:muli@xxxxxxxxxx] 
> Sent: 03 July 2006 19:22
> To: Petersson, Mats
> Cc: Alexandre Miguel Pedro Gomes; xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] Xen to Desktop/Workstation questions
> 
> On Mon, Jul 03, 2006 at 07:15:23PM +0200, Petersson, Mats wrote:
> 
> > In the future, there will be hardware to support remapping 
> the physical
> > memory accesses that Windows (and other operating systems) tell to
> > hardware, such that we can "adjust" the REAL memory address 
> that (for
> > example) a graphics card performs it's operations on. But it's not
> > available today. This hardware is called IOMMU.
> 
> It is available on at least one IBM server family today. You can see
> our on-going work to support it at
> http://xenbits.xensource.com/ext/xen-iommu.hg and
> http://xenbits.xensource.com/ext/linux-iommu.hg (although note we're
> targetting safe direct device access from PV guests at the moment, not
> FV guests).

I am aware that there is some hardware out there with support for this.
But most desktop users will not want to use a fairly highend server as
their desktop machine. So I should have qualified my answer with "It's
not available today for desktop machines"... 

>From what I can read, the x366 doesn't even have PCI-e slots, which
would reduce it's usefullness for the average gamer to near zero, and as
the original post was about playing games on a desktop machine, it's
still not particularly useful, even if the OP would accept a server as
their desktop machine... ;-)

I'm looking forward to seeing your presenatation at OLS. 

--
Mats



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