[dundee] Xen ... Pcie Pass through...HMV

[Lee Hughes]

Perhaps gordon (the virtual god) can you answer me this.

Is there a limit to the number of hmv that xen can run? I've heard it 1, but
I've also heard you can have more.

Why is the Xen documentation , so so so bad ;-).. hheheeheheh

Just looking at kvm, seems the are adding full (hmv)  to this as well.

it all looks good, hopefully with iommu , vm's can get much better io performance....

I'm happy with openvz, after Gordon did a talk on it, I was sold.. it's all good baby,
but that mainly for servers, the 3d desktop is the next battle ground.

Yes, I do want to to be able to play directx without using wine, and without rebooting!

now, I wonder 4 graphics cards, 4 hmv with pcie pass through, I could run every operating
system going. ;-) hehehee

 Cheers,
Lee





--- On Tue, 10/3/09, gordon dunlop <astrozubenel at googlemail.com> wrote:
From: gordon dunlop <astrozubenel at googlemail.com>
Subject: Re: [dundee] Xen ... Pcie Pass through...HMV
To: toxicnaan at yahoo.co.uk, "Tayside Linux User Group" <dundee at lists.lug.org.uk>
Date: Tuesday, 10 March, 2009, 8:35 AM



2009/3/8 Lee Hughes <toxicnaan at yahoo.co.uk>


Hello all (gordon will like this).

Seems Xen have finally got pcie pass through working with xen HVM domians in DOMu.

Unfortunately I don't the require chipset to allow me to test this (it needs intel vt-d )

which gives an IOMMU.

I have only got a dual core Opteron socket 939 which has no inbuilt vt instructions therefore I cannot run unmodified Linux guests in Xen. 



What this basically  means is, you'll be able to run Xen, with either a linux system in Dom0
or domU, and windows system in DomU and play direct X games, without rebooting. ;-)

It's got lots of other uses to, like improving a vm's IO prerformance ,  heheeheh


Check it out here

http://wiki.xensource.com/xenwiki/VTdHowTo

http://www.nabble.com/Successful-PCIe-Graphics-VT-d-Passthrough-to-Win32-DomU,-Q35-chipset-td21671745.html


Very interesting links Lee, although you will need a motherboard with 2 graphics card slots.

Gordon
 


I'd say this is a interesting development. It's early days, so I guess it's not too stable.
Who can tell.

So if you have this
 chipset, please give it a try...... 

I've also heard some crazy talk about bios vendors building hypervisors into the bios's.
So, you can just parition your machine, without the aid additional software.


Crazy stuff.



Cheers,
Lee







      
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