[OpenIndiana-discuss] XEN and Crossbow

[Boris Derzhavets]

> I wrote Garrett about this earlier this week.  It seems that the starting point would be to follow this guide <http://bderzhavets.wordpress.com/2009/12/11/build-sun-xvm-3-4-2-from-source-on-top-osol-1002-128a/> and see what happens. 

This xVM gate is gone a while ago. Even at the point of OS 134 release it was already
useless.   Where are guys  who ,did xVM  stuff , in meantime  ?
I would guess @Oracle, hence they won't speak to you.
Sun was working on xVM since 2007. If Xen DomU support will be recovered - nice.

Boris. 

--- On Sat, 9/25/10, Kent Watsen <kent at watsen.net> wrote:

From: Kent Watsen <kent at watsen.net>
Subject: Re: [OpenIndiana-discuss] XEN and Crossbow
To: openindiana-discuss at openindiana.org
Date: Saturday, September 25, 2010, 9:35 AM


[resending - originally sent this mail last night, but I don't see it posted yet]

On 9/24/10 5:06 PM, Stefan Müller-Wilken wrote:
> Guys,
> 
> just curious: what would you expect how complicated porting Xen to OpenIndiana would be? Suitable for a Summer of Code student? Or more a multi-month project for a team of seasoned kernel developers? And then: what is it one has to build upon? Is xVM completely CDDLed? Or not at all and you'd have to start from scratch?
>    

I wrote Garrett about this earlier this week.  It seems that the starting point would be to follow this guide <http://bderzhavets.wordpress.com/2009/12/11/build-sun-xvm-3-4-2-from-source-on-top-osol-1002-128a/> and see what happens.  The link says the mercurial gate for xVM is 800-900 MB, Garrett said this is because it contains the entire ON tree (this would be osol ON, not illumos ON).  I'm hoping that it's just some copy-on-write branching magic in mercurial!  While the compilation is going on, it would probably be good to review the code history for the xvm gate - to identify the specific set of files that were patched and how.  Garrett said it's unlikely the current xvm bits would work on Illumos as there have been some changes to e.g. interrupt routing, that is likely to be incompatible with xvm.

Thanks,
Kent
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