xen-devel

[Top] [All Lists]

Re: [Xen-devel] Re: Questions on Copy-on-Write

from [Ian Pratt]

[Permanent Link][Original]

To:	Christian Limpach <chris@xxxxxx>
Subject:	Re: [Xen-devel] Re: Questions on Copy-on-Write
From:	Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>
Date:	Mon, 02 Feb 2004 14:12:16 +0000
Cc:	Bin Ren <br260@xxxxxxxxx>, Yan-Ching CHU <cs0u210a@xxxxxxxxxxxxxxx>, Devel Xen <xen-devel@xxxxxxxxxxxxxxxxxxxxx>, Ian.Pratt@xxxxxxxxxxxx
Delivery-date:	Mon, 02 Feb 2004 14:14:42 +0000
Envelope-to:	steven.hand@xxxxxxxxxxxx
In-reply-to:	Your message of "Mon, 02 Feb 2004 14:44:37 +0100." <08da01c3e992$b49d4a90$070414ac@pin>
List-archive:	<http://sourceforge.net/mailarchive/forum.php?forum=xen-devel>
List-help:	<mailto:xen-devel-request@lists.sourceforge.net?subject=help>
List-id:	List for Xen developers <xen-devel.lists.sourceforge.net>
List-post:	<mailto:xen-devel@lists.sourceforge.net>
List-subscribe:	<https://lists.sourceforge.net/lists/listinfo/xen-devel>, <mailto:xen-devel-request@lists.sourceforge.net?subject=subscribe>
List-unsubscribe:	<https://lists.sourceforge.net/lists/listinfo/xen-devel>, <mailto:xen-devel-request@lists.sourceforge.net?subject=unsubscribe>
Sender:	xen-devel-admin@xxxxxxxxxxxxxxxxxxxxx

 
> > Just create a CoW multi-disk device with VBDs in XenoLinux
> > and that's it.
> 
> Doesn't this sit at the wrong level?  

Implementing the CoW functionality in Linux is basically a
stop-gap until we can do it more cleanly with the new IO stuff
that's under development.

> This would make all disk accesses on these devices go through
> Domain0?

Any domain that wanted CoW disk access could use Bin's CoW driver
directly. Of course, that would no longer be transparent to the
guest OS. It'll all be much cleaner in the future...

Cheers,
Ian


-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
[Xen-devel] Re: Problems about Xen's Howto, Bin Ren [Xen-devel] Questions on Copy-on-Write, Yan-Ching CHU [Xen-devel] Re: Questions on Copy-on-Write, Bin Ren Re: [Xen-devel] Re: Questions on Copy-on-Write, Christian Limpach Re: [Xen-devel] Re: Questions on Copy-on-Write, Ian Pratt <=

Previous by Date:	Re: [Xen-devel] Re: Questions on Copy-on-Write, Christian Limpach
Next by Date:	[Xen-devel] NetBSD port snapshot available, Christian Limpach
Previous by Thread:	Re: [Xen-devel] Re: Questions on Copy-on-Write, Christian Limpach
Next by Thread:	[Xen-devel] NetBSD port snapshot available, Christian Limpach
Indexes:	[Date] [Thread] [Top] [All Lists]