Re: [Xen-users] RE: [Xen-devel] Xen 3.0.3 released!

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> I just noticed in the kernel configuration there is an option
>
> Xen -> Xen version compatibility -> 3.0.2 and later
>
> Does this mean that there are problems running Xen 3.0.1 domU's under
> 3.0.3?

Nope.  Older domUs in the Xen 3.x.y series should always run on newer Xens - 
that's where the API support comes in.  You still have to run a matched tool 
set / dom0 kernel / Xen, but the domU kernels can be carried directly 
forward.

As far as I know the compat option is there for the following reasons:
The compatibility option allows you to compile a domU from Xen 3.0.3 and have 
it be runnable on 3.0.2.  If you don't enable this it'll use slightly newer 
interfaces that are incompatible with the older Xens, but are still forwards 
compatible to future 3.x.y releases.

HTH,
Mark

>
> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Ian Pratt
> Sent: Tuesday, October 17, 2006 5:56 PM
> To: xen-devel@xxxxxxxxxxxxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx;
> xen-announce@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-devel] Xen 3.0.3 released!
>
> Folks,
>
> We're pleased to announce the official release of xen 3.0.3!
>
> This release includes many new features as well as enhanced
> stability and performance. Some highlights include:
>
>   - a new easy-to-use CPU scheduler which includes weights, caps,
>     and automatic SMP load-balancing;
>   - support for Xen-oprofile to allow measurement and optimization
>     of code paths;
>   - greatly enhanced support for unmodified ("hvm") guests including
>     Windows and legacy Linux operating systems;
>   - support for dynamic-allocation and copy-on-write disks
> ("blktap/qcow");
>   - packet segmentation offload in guests to improve network
> performance;
>   - enhanced support for IA64 (IPF) systems; and initial support for
> Power.
>
> You can download source and binary tarballs, RPMs, and a live 'demo' CD
> from:
>   http://www.xensource.com/downloads
>
> As always, you can also get the source using mercurial from:
>   http://xenbits.xensource.com/xen-3.0.3-testing.hg
>
> Cheers,
> Ian (on behalf of the whole Xen dev team)
>
>
>
>
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>
>
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-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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