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Re: [Xen-devel] [PATCH] /sys/hypervisor/uuid

To: Anthony Liguori <aliguori@xxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] /sys/hypervisor/uuid
From: Jeremy Katz <katzj@xxxxxxxxxx>
Date: Mon, 22 May 2006 12:05:21 -0400
Cc: Xen devel list <xen-devel@xxxxxxxxxxxxxxxxxxx>, Markus Armbruster <armbru@xxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, Christian Limpach <chris@xxxxxxxxxxxxx>, Christian.Limpach@xxxxxxxxxxxx
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On Mon, 2006-05-22 at 10:57 -0500, Anthony Liguori wrote:
> Jeremy Katz wrote:
> > I really think the "do transactions via xenstore in domU" is going to
> > have as much or more of a fight involved.
> >
> > Having the UUID easily accessible via sysfs definitely seems like it
> > would be advantageous to more than just me based on the comments here.  
>
> What will you be using the UUID for?
> 
> I know we wished to use it to replace the UUID normally available in 
> SMBIOS.  If that is the case, then perhaps we should reconsider the 
> location of the UUID attribute since it could be available even when a 
> hypervisor isn't around.

Generally speaking, the UUID is used to be able to uniquely identify a
host for management (and other types) of apps.  So yes, this is
basically the extension of the SMBIOS side to paravirt guests.  

And I had entertained the thought of throwing together the patch to make
the UUID more generically available, I just haven't really had time to
try to track gregkh down and talk him into it

Jeremy


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