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Re: [Xen-devel] New feature support - xl or xm ?

To: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] New feature support - xl or xm ?
From: "Vincent, Pradeep" <pradeepv@xxxxxxxxxx>
Date: Mon, 7 Jun 2010 18:35:46 -0700
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Thread-topic: [Xen-devel] New feature support - xl or xm ?
I haven’t looked deeply into ‘xl’ but..

>From the recent Xen summit, I walked away thinking ‘xl’ didn’t have the callback mechanisms (e.g. Cleanup etc) and this helped it stay stateless while falling short of full ‘xm’ replacement. This email thread indicates ‘xm/xend’ will be deprecated in due course of time. Did I miss anything here ?

Is migration of VMs from ‘xm’ managed hosts to ‘xl’ managed hosts expected to work ?

I think moving away from commonly used xend/xm could be a bit of a thorn particularly if the ‘xm’ to ‘xl’ migration isn’t expected to work.

Thoughts ?

Thanks,

- Pradeep Vincent

On 6/1/10 3:20 AM, "Ian Jackson" <Ian.Jackson@xxxxxxxxxxxxx> wrote:

Stefano Stabellini writes ("Re: [Xen-devel] New feature support - xl or xm ?"):
> On Fri, 28 May 2010, Dulloor wrote:
> > If we are to add new guest configuration parameters, is it enough to
> > make it work with xl ?
> > Sorry, if I missed any past mails regarding this, but (in general)
> > should people think xl or xm or both ?
>
> xl is strongly recommended at this point.

Indeed.  I think at this point it's probably OK to submit features for
libxl only and not add them to xm/xend too.

Ian.

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