Re: [Xen-devel] Proposal for init/kexec/hotplug format for Xen

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Keir Fraser wrote:

> > The way I envision this working is to have a persistent store in 
> > user-space on a priviledged domain that exported within it's tree the 
> > OF device-tree.  This way management app information (the domain's 
> > name, an icon associated with it, etc.) would not be stored in the OF 
> > tree.  If you needed to blow away a portion of the store because of 
> > an misbehaving management app you do not lose any of the vital device 
> > information.
> So you agree that the device info ought to reside within the 
> persistent store? I certainly wasn't suggesting that
Yes.  I was only pointing out that I think the persistent store should 
be in userspace.  One approach would be to have another tree within the 
hypervisor that was the global persistent store.  An advantage of that 
would be that it would be accessible by all domains without any special 
supporting software (like a TCP/IP stack).
I think keeping the store in userspace has more advantages (mainly 
robustness and extensibility).  It sounds like we're all in agreement 
though :-)
Regards,
Anthony Liguori

>  -- Keir

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