Re: [PATCH] xenctld - a control channel multiplexing daemon

[Andrew Warfield <andrew.warfield@gmail.com>]

> In reality, what's the different between a domain that's suspended to
> disk and a clone domain that just hasn't been started yet.
> 
> Does the current persistent store architecture attempt to solve this
> problem?  Does it attempt to solve both problems?

No.  There has been no discussion of storing suspended domains.  For
the moment, i think it's probably best to design the store to contain
runtime state for the currently executing set of VMs on the physical
host.  So records in the store are persistent across daemon restarts,
and dom0 restarts.

I don't think any of use really imagine the store as being a very
complicated bit of code at all.  The bit of design that needs a little
more thought is how things like device driver setup should look with
the new control tools.  This isn't necessarily terrible -- but
changing e.g. device channel negotiation at driver setup is going to
be a lot less work this round (with three split drivers) than it is
going to be if we need yet another set of control tools for Xen 4. ;)

a.


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