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Re: [Xen-devel] sharing memory between unprivileged guests

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] sharing memory between unprivileged guests
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Thu, 28 Apr 2005 02:40:15 +0100
Cc: Kip Macy <kip.macy@xxxxxxxxx>
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> > Is there any way for unprivileged guests to map each others memory
> > without grant tables? Now that the pressure is off for me to support
> > SMP internally, I'd like to switch back to using -testing.
>
> Currently not. We'd like to support more general and wide-scale sharing
> of pages than grant tables were designed to support (for shared buffer
> cache and lightweight VM cloning, for example),

I'll be looking at this for XenFS at some stage in the nearish future.  Before 
I get into that, there are some more VFS-level features I want to get 
working.

Cheers,
Mark

> but that isn't 
> implemented yet and certainly won't appear in the 2.0 series.
>
>   -- Keir
>
>
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