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From Laurent Steff <Laurent.St...@inria.fr>
Subject Re: Cloudstack/KVM/arch i686 case reopened
Date Tue, 09 Sep 2014 15:11:28 GMT
Hi Rohit,

Thanks for your answer !

I'm missing real use cases of 32 bit emulation, only knowing that some
researchers are working on low-level instructions on various CPU architectures.

And seeing CPU features (in our case "lm" but I've also heard of "sse*") 
that could not be implemented fools their low-level code.

For now we seem to have only a ugly workaround (updating Cloudstack database) and we're
trying to learn how to code in Cloudstack to propose patches.

We will certainly add a feature request too, enabling on UI/API
an "advanced choice for advanced users" for instances on libvirt/KVM clusters :
- cpu arch
- cpu models (AFAIK only available for now as guest.cpu.model
on Cloudstack KVM agent configuration)
- cpu features

Best Regards,

----- Mail original -----
> De: "Rohit Yadav" <rohit.yadav@shapeblue.com>
> À: dev@cloudstack.apache.org
> Envoyé: Lundi 8 Septembre 2014 18:21:34
> Objet: Re: Cloudstack/KVM/arch i686 case reopened
> 
> Hi Laurent,
> 
> You’re welcome to contribute any work that you’ve already done. Else, you
> could have any developers at INRIA or may sponsor developers to work on this
> issue and the ACS community will be happy to assist them during development,
> help with patches, reviews etc.
> 
> I’m curious why your researchers would need “real” 32 bit CPUs support and
> what the use cases are.
> One can always run 32bit VMs on 64bit CPU/KVM. Will be happy to help.
> 
> On 08-Sep-2014, at 5:13 pm, Laurent Steff <Laurent.Steff@inria.fr> wrote:
> > Hello,
> >
> > As a lot of our researchers still need "real" 32bits CPU support
> > in KVM/Qemu with CloudStack, we reopened and old bug reported by
> > a colleague almost one year ago, without any activity.
> >
> > https://issues.apache.org/jira/browse/CLOUDSTACK-7511
> >
> > Tell us if we could help (testing, patch, ...)
> >
> > Thanks in advance.
> >
> > Regards,
> > --
> > Laurent Steff
> >
> > DSI/SESI
> > INRIA
> > http://www.inria.fr/
> 
> Regards,
> Rohit Yadav
> Software Architect, ShapeBlue
> M. +41 779015219 | rohit.yadav@shapeblue.com
> Blog: bhaisaab.org | Twitter: @_bhaisaab
> 
> 
> 
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> 
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-- 
Laurent Steff

DSI/SESI
INRIA
Tél.  : +33 1 39 63 50 81
Port. : +33 6 87 66 77 85
http://www.inria.fr/

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